From 6eb35ac0ca024dea1c96c69acadf70d90ef65e43 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 28 Feb 2021 21:45:36 -0800
Subject: [PATCH 001/139] Fix changelog

---
 CHANGELOG.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f3dfa525..0e8306130 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,11 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [0.3.4] - 2021-02-28
+## [0.3.5] - 2021-02-28
 ### Fixed
 - Case where `raycastFirst` failed to return a valid result.
 
-## [0.3.3] - 2021-02-25
+## [0.3.4] - 2021-02-25
 ### Changed
 - Raycast result to return a custom intersection object aligned with three.js v0.126.0.
 

From 59ae26086e8b63b9773cecb102e06457031e049d Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 28 Feb 2021 22:18:28 -0800
Subject: [PATCH 002/139] Delete generateAsync.js

---
 src/workers/generateAsync.js | 9 ---------
 1 file changed, 9 deletions(-)
 delete mode 100644 src/workers/generateAsync.js

diff --git a/src/workers/generateAsync.js b/src/workers/generateAsync.js
deleted file mode 100644
index e6844020c..000000000
--- a/src/workers/generateAsync.js
+++ /dev/null
@@ -1,9 +0,0 @@
-import { GenerateMeshBVHWorker } from './GenerateMeshBVHWorker.js';
-
-export function generateAsync( geometry, options = {} ) {
-
-	console.warn( 'MeshBVH: "generateAsync" is deprecated. Use MeshBVHGenerationWorker instead.' );
-
-	return new GenerateMeshBVHWorker().generate( geometry, options );
-
-}

From 843a4265491a13b6d2462a58609cfcc498dbfb98 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 28 Feb 2021 22:22:39 -0800
Subject: [PATCH 003/139] Update CHANGELOG.md

---
 CHANGELOG.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e8306130..cc62dfcf1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+### Changed
+- Removed `src/worker/generateAsync.js` function. Use `GenerateMeshBVHWorker` instead.
+
 ## [0.3.5] - 2021-02-28
 ### Fixed
 - Case where `raycastFirst` failed to return a valid result.

From 65c4584c008eded0950627ff528faf224035bec8 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:28:25 -0800
Subject: [PATCH 004/139] Update MeshBVH.js

---
 src/MeshBVH.js | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 0bad89bd3..a741427ba 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -200,12 +200,10 @@ export default class MeshBVH {
 			maxDepth: 40,
 			maxLeafTris: 10,
 			verbose: true,
-			lazyGeneration: true,
 
 			// undocumented options
 
-			// whether to the pack the data as a buffer or not. The data
-			// will not be packed if lazyGeneration is true.
+			// whether to the pack the data as a buffer or not.
 			packData: true,
 
 			// Whether to skip generating the tree. Used for deserialization.
@@ -219,7 +217,7 @@ export default class MeshBVH {
 		if ( ! options[ SKIP_GENERATION ] ) {
 
 			this._roots = buildTree( geo, options );
-			if ( ! options.lazyGeneration && options.packData ) {
+			if ( options.packData ) {
 
 				this._roots = MeshBVH.serialize( this, geo, false ).roots;
 				this._isPacked = true;

From cfec46a82f44a009de2a09b94d89d63c686ee2fb Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:31:29 -0800
Subject: [PATCH 005/139] Update buildFunctions.js

---
 src/buildFunctions.js | 39 ++++-----------------------------------
 1 file changed, 4 insertions(+), 35 deletions(-)

diff --git a/src/buildFunctions.js b/src/buildFunctions.js
index 03bada9eb..a9b1658ed 100644
--- a/src/buildFunctions.js
+++ b/src/buildFunctions.js
@@ -552,23 +552,8 @@ export function buildTree( geo, options ) {
 			node.left = left;
 			left.boundingData = new Float32Array( 6 );
 
-			if ( lazyGeneration ) {
-
-				getBounds( triangleBounds, lstart, lcount, left.boundingData );
-				left.continueGeneration = function () {
-
-					delete this.continueGeneration;
-					getCentroidBounds( triangleBounds, lstart, lcount, cacheCentroidBoundingData );
-					splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
-
-				};
-
-			} else {
-
-				getBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );
-				splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
-
-			}
+			getBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );
+			splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
 
 			// repeat for right
 			const right = new MeshBVHNode();
@@ -577,23 +562,8 @@ export function buildTree( geo, options ) {
 			node.right = right;
 			right.boundingData = new Float32Array( 6 );
 
-			if ( lazyGeneration ) {
-
-				getBounds( triangleBounds, rstart, rcount, right.boundingData );
-				right.continueGeneration = function () {
-
-					delete this.continueGeneration;
-					getCentroidBounds( triangleBounds, rstart, rcount, cacheCentroidBoundingData );
-					splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
-
-				};
-
-			} else {
-
-				getBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );
-				splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
-
-			}
+			getBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );
+			splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
 
 		}
 
@@ -611,7 +581,6 @@ export function buildTree( geo, options ) {
 	const verbose = options.verbose;
 	const maxLeafTris = options.maxLeafTris;
 	const strategy = options.strategy;
-	const lazyGeneration = options.lazyGeneration;
 	let reachedMaxDepth = false;
 
 	const roots = [];

From 9a829572960fef8ffe2215b4247369d6468e1297 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:32:39 -0800
Subject: [PATCH 006/139] Update castFunctions.js

---
 src/castFunctions.js | 46 --------------------------------------------
 1 file changed, 46 deletions(-)

diff --git a/src/castFunctions.js b/src/castFunctions.js
index e79abd3ba..9efd3aa89 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -21,12 +21,6 @@ function intersectRay( node, ray, target ) {
 
 export function raycast( node, mesh, raycaster, ray, intersects ) {
 
-	if ( node.continueGeneration ) {
-
-		node.continueGeneration();
-
-	}
-
 	const isLeaf = ! ! node.count;
 	if ( isLeaf ) {
 
@@ -52,12 +46,6 @@ export function raycast( node, mesh, raycaster, ray, intersects ) {
 
 export function raycastFirst( node, mesh, raycaster, ray ) {
 
-	if ( node.continueGeneration ) {
-
-		node.continueGeneration();
-
-	}
-
 	const isLeaf = ! ! node.count;
 	if ( isLeaf ) {
 
@@ -178,20 +166,9 @@ export const shapecast = ( function () {
 		// when converting to the buffer equivalents
 		function getLeftOffset( node ) {
 
-			if ( node.continueGeneration ) {
-
-				node.continueGeneration();
-
-			}
-
 			while ( ! node.count ) {
 
 				node = node.left;
-				if ( /* skip */ node.continueGeneration ) {
-
-					node.continueGeneration();
-
-				}
 
 			}
 
@@ -201,20 +178,9 @@ export const shapecast = ( function () {
 
 		function getRightEndOffset( node ) {
 
-			if ( node.continueGeneration ) {
-
-				node.continueGeneration();
-
-			}
-
 			while ( ! node.count ) {
 
 				node = node.right;
-				if ( /* skip */ node.continueGeneration ) {
-
-					node.continueGeneration();
-
-				}
 
 			}
 
@@ -222,12 +188,6 @@ export const shapecast = ( function () {
 
 		}
 
-		if ( node.continueGeneration ) {
-
-			node.continueGeneration();
-
-		}
-
 		const isLeaf = ! ! node.count;
 		if ( isLeaf && intersectsTriangleFunc ) {
 
@@ -371,12 +331,6 @@ export const intersectsGeometry = ( function () {
 
 	return function intersectsGeometry( node, mesh, geometry, geometryToBvh, cachedObb = null ) {
 
-		if ( node.continueGeneration ) {
-
-			node.continueGeneration();
-
-		}
-
 		if ( cachedObb === null ) {
 
 			if ( ! geometry.boundingBox ) {

From 749992008a415446ddf7af3a21477a5fc74e60d5 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:34:48 -0800
Subject: [PATCH 007/139] Update README.md

---
 README.md | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/README.md b/README.md
index 7eb71c064..a54dfc29e 100644
--- a/README.md
+++ b/README.md
@@ -95,7 +95,7 @@ const invMat = new THREE.Matrix4();
 
 // ...
 
-const bvh = new MeshBVH( geometry, { lazyGeneration: false } );
+const bvh = new MeshBVH( geometry );
 invMat.copy( mesh.matrixWorld ).invert();
 
 // raycasting
@@ -224,16 +224,6 @@ Constructs the bounds tree for the given geometry and produces a new index attri
     // Print out warnings encountered during tree construction.
     verbose: true,
 
-    // If true the bounds tree is generated progressively as the tree is used allowing
-    // for a fast initialization time and memory allocation as needed but a higher memory
-    // footprint once the tree is completed. The initial raycasts are also slower until the
-    // tree is built up.
-    // If false then the bounds tree will be completely generated up front and packed into
-    // an array buffer for a lower final memory footprint and long initialization time.
-    // Note that this will keep intermediate buffers needed for generation in scope until
-    // the tree has been fully generated.
-    lazyGeneration: true
-
 }
 ```
 

From 0552efad4ca155eef9c494a3cd70043ebfe4dc10 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:47:04 -0800
Subject: [PATCH 008/139] Update Debug.js

---
 src/Utils/Debug.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Utils/Debug.js b/src/Utils/Debug.js
index 66e99c8e0..521939241 100644
--- a/src/Utils/Debug.js
+++ b/src/Utils/Debug.js
@@ -36,7 +36,7 @@ function getRootExtremes( bvh, group ) {
 		splits: [ 0, 0, 0 ]
 	};
 
-	bvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
+	bvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {
 
 		result.total ++;
 		if ( isLeaf ) {
@@ -44,8 +44,8 @@ function getRootExtremes( bvh, group ) {
 			result.depth.min = Math.min( depth, result.depth.min );
 			result.depth.max = Math.max( depth, result.depth.max );
 
-			result.tris.min = Math.min( countOrIsUnfinished, result.tris.min );
-			result.tris.max = Math.max( countOrIsUnfinished, result.tris.max );
+			result.tris.min = Math.min( count, result.tris.min );
+			result.tris.max = Math.max( count, result.tris.max );
 
 		} else {
 

From f5d41ab3b0d4de98df9c117338f0bb7b3cd991dd Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:47:28 -0800
Subject: [PATCH 009/139] Update MeshBVH.js

---
 src/MeshBVH.js | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index a741427ba..681e6e70d 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -37,23 +37,6 @@ export default class MeshBVH {
 
 	static serialize( bvh, geometry, copyIndexBuffer = true ) {
 
-		function finishTree( node ) {
-
-			if ( node.continueGeneration ) {
-
-				node.continueGeneration();
-
-			}
-
-			if ( ! node.count ) {
-
-				finishTree( node.left );
-				finishTree( node.right );
-
-			}
-
-		}
-
 		function countNodes( node ) {
 
 			if ( node.count ) {
@@ -125,7 +108,6 @@ export default class MeshBVH {
 			for ( let i = 0; i < roots.length; i ++ ) {
 
 				const root = roots[ i ];
-				finishTree( root );
 				let nodeCount = countNodes( root );
 
 				const buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );
@@ -252,7 +234,7 @@ export default class MeshBVH {
 					const left = stride4Offset + BYTES_PER_NODE / 4;
 					const right = uint32Array[ stride4Offset + 6 ];
 					const splitAxis = uint32Array[ stride4Offset + 7 ];
-					const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), splitAxis, false );
+					const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), splitAxis );
 
 					if ( ! stopTraversal ) {
 
@@ -278,7 +260,7 @@ export default class MeshBVH {
 
 				} else {
 
-					const stopTraversal = callback( depth, isLeaf, node.boundingData, node.splitAxis, ! ! node.continueGeneration );
+					const stopTraversal = callback( depth, isLeaf, node.boundingData, node.splitAxis );
 
 					if ( ! stopTraversal ) {
 

From e4c89df3c59ab9e2bf2cf3668c5689cba95d88b7 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:52:56 -0800
Subject: [PATCH 010/139] use type: module

---
 benchmark/index.js                 |  2 --
 package-lock.json                  | 55 ------------------------------
 package.json                       |  6 ++--
 scripts/generate-cast-functions.js |  4 +--
 4 files changed, 5 insertions(+), 62 deletions(-)
 delete mode 100644 benchmark/index.js

diff --git a/benchmark/index.js b/benchmark/index.js
deleted file mode 100644
index 51f190e84..000000000
--- a/benchmark/index.js
+++ /dev/null
@@ -1,2 +0,0 @@
-require( '@babel/register' )( { ignore: [ /node_modules\/(?!three)/ ] } );
-require( './run-benchmark.js' );
diff --git a/package-lock.json b/package-lock.json
index 7f333524c..4a0fe3145 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2913,19 +2913,6 @@
         "esutils": "^2.0.2"
       }
     },
-    "@babel/register": {
-      "version": "7.12.1",
-      "resolved": "https://registry.npmjs.org/@babel/register/-/register-7.12.1.tgz",
-      "integrity": "sha512-XWcmseMIncOjoydKZnWvWi0/5CUCD+ZYKhRwgYlWOrA8fGZ/FjuLRpqtIhLOVD/fvR1b9DQHtZPn68VvhpYf+Q==",
-      "dev": true,
-      "requires": {
-        "find-cache-dir": "^2.0.0",
-        "lodash": "^4.17.19",
-        "make-dir": "^2.1.0",
-        "pirates": "^4.0.0",
-        "source-map-support": "^0.5.16"
-      }
-    },
     "@babel/runtime": {
       "version": "7.8.4",
       "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.8.4.tgz",
@@ -5011,12 +4998,6 @@
       "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
       "dev": true
     },
-    "commondir": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
-      "integrity": "sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=",
-      "dev": true
-    },
     "component-emitter": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.0.tgz",
@@ -6583,17 +6564,6 @@
         }
       }
     },
-    "find-cache-dir": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/find-cache-dir/-/find-cache-dir-2.1.0.tgz",
-      "integrity": "sha512-Tq6PixE0w/VMFfCgbONnkiQIVol/JJL7nRMi20fqzA4NRs9AfeqMGeRdPi3wIhYkxjeBaWh2rxwapn5Tu3IqOQ==",
-      "dev": true,
-      "requires": {
-        "commondir": "^1.0.1",
-        "make-dir": "^2.0.0",
-        "pkg-dir": "^3.0.0"
-      }
-    },
     "find-up": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
@@ -10435,16 +10405,6 @@
         "vlq": "^0.2.2"
       }
     },
-    "make-dir": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-2.1.0.tgz",
-      "integrity": "sha512-LS9X+dc8KLxXCb8dni79fLIIUA5VyZoyjSMCwTluaXA0o27cCK0bhXkpgw+sTXVpPy/lSO57ilRixqk0vDmtRA==",
-      "dev": true,
-      "requires": {
-        "pify": "^4.0.1",
-        "semver": "^5.6.0"
-      }
-    },
     "makeerror": {
       "version": "1.0.11",
       "resolved": "https://registry.npmjs.org/makeerror/-/makeerror-1.0.11.tgz",
@@ -11304,12 +11264,6 @@
       "integrity": "sha512-ISBaA8xQNmwELC7eOjqFKMESB2VIqt4PPDD0nsS95b/9dZXvVKOlz9keMSnoGGKcOHXfTvDD6WMaRoSc9UuhRA==",
       "dev": true
     },
-    "pify": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
-      "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
-      "dev": true
-    },
     "pirates": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/pirates/-/pirates-4.0.1.tgz",
@@ -11319,15 +11273,6 @@
         "node-modules-regexp": "^1.0.0"
       }
     },
-    "pkg-dir": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-3.0.0.tgz",
-      "integrity": "sha512-/E57AYkoeQ25qkxMj5PBOVgF8Kiu/h7cYS30Z5+R7WaiCCBfLq58ZI/dSeaEKb9WVJV5n/03QwrN3IeWIFllvw==",
-      "dev": true,
-      "requires": {
-        "find-up": "^3.0.0"
-      }
-    },
     "pn": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/pn/-/pn-1.1.0.tgz",
diff --git a/package.json b/package.json
index 6471cbc10..3c32ae4ec 100644
--- a/package.json
+++ b/package.json
@@ -3,14 +3,15 @@
   "version": "0.3.5",
   "description": "A BVH implementation to speed up raycasting against three.js meshes.",
   "module": "src/index.js",
-  "main": "umd/index.js",
+  "main": "src/index.js",
+  "type": "module",
   "scripts": {
     "start": "concurrently \"parcel watch ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache\" \"rollup -w -c\" \"static-server\"",
     "generate-cast-functions": "node ./scripts/generate-cast-functions.js",
     "build": "npm run generate-cast-functions && rollup -c & parcel build ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache --no-source-maps --no-content-hash",
     "test": "npm run generate-cast-functions && jest",
     "lint": "npm run generate-cast-functions && eslint \"./src/*.js\" \"./test/*.js\" \"./example/*.js\"",
-    "benchmark": "npm run generate-cast-functions && node benchmark/index.js"
+    "benchmark": "npm run generate-cast-functions && node benchmark/run-benchmark.js"
   },
   "files": [
     "src/*",
@@ -50,7 +51,6 @@
   "devDependencies": {
     "@babel/core": "^7.12.9",
     "@babel/preset-env": "^7.12.7",
-    "@babel/register": "^7.12.1",
     "babel-jest": "^26.6.3",
     "concurrently": "^5.3.0",
     "dat.gui": "^0.7.3",
diff --git a/scripts/generate-cast-functions.js b/scripts/generate-cast-functions.js
index 6d27eb3aa..6fc2c3c08 100644
--- a/scripts/generate-cast-functions.js
+++ b/scripts/generate-cast-functions.js
@@ -1,5 +1,5 @@
-const fs = require( 'fs' );
-const path = require( 'path' );
+import fs from 'fs';
+import path from 'path';
 
 // Replace unneeded function definitions and checks. The `continueGeneration` block is always at the top of
 // a function definition so we can replace that with local variable definitions we need.

From 934d35d3fca92a9cc733a49365a0194dae2cbdc2 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:54:02 -0800
Subject: [PATCH 011/139] Update CHANGELOG.md

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc62dfcf1..b16b10ba5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## Unreleased
 ### Changed
 - Removed `src/worker/generateAsync.js` function. Use `GenerateMeshBVHWorker` instead.
+- Use `type: module` in the package.json
 
 ## [0.3.5] - 2021-02-28
 ### Fixed

From 1e70de69ee1422293870f0dddb1d488fbcb71023 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:54:13 -0800
Subject: [PATCH 012/139] Update CHANGELOG.md

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b16b10ba5..7b8892620 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## Unreleased
 ### Changed
 - Removed `src/worker/generateAsync.js` function. Use `GenerateMeshBVHWorker` instead.
-- Use `type: module` in the package.json
+- Use `type: module` in package.json.
 
 ## [0.3.5] - 2021-02-28
 ### Fixed

From e6b498477ea65bbe10b350a59e4a633b0d00e829 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:56:42 -0800
Subject: [PATCH 013/139] Update CHANGELOG.md

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7b8892620..6a640d31e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## Unreleased
 ### Changed
 - Removed `src/worker/generateAsync.js` function. Use `GenerateMeshBVHWorker` instead.
-- Use `type: module` in package.json.
+- Use `type: module` in package.json to enable use of es6 modules in node.
 
 ## [0.3.5] - 2021-02-28
 ### Fixed

From 813346bb2dc3ae46919efe8f44dd66d6d2423c61 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 18:57:57 -0800
Subject: [PATCH 014/139] Update node.js.yml

---
 .github/workflows/node.js.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index 05451203b..9bc9b5d7d 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [10.x, 12.x, 14.x]
+        node-version: [14.x]
 
     steps:
     - uses: actions/checkout@v2

From 11f8d118d536e7e60a1a2350003e34e684b1d9ed Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 19:17:56 -0800
Subject: [PATCH 015/139] Fix cast function generation

---
 scripts/generate-cast-functions.js | 35 ++++++++++++------------------
 src/castFunctionsBuffer.js         |  6 +++--
 2 files changed, 18 insertions(+), 23 deletions(-)

diff --git a/scripts/generate-cast-functions.js b/scripts/generate-cast-functions.js
index 6d27eb3aa..37a502ef0 100644
--- a/scripts/generate-cast-functions.js
+++ b/scripts/generate-cast-functions.js
@@ -5,27 +5,6 @@ const path = require( 'path' );
 // a function definition so we can replace that with local variable definitions we need.
 function replaceUnneededCode( str ) {
 
-	str = str.replace(
-		/if \( [^)]*node.continueGeneration \)(.|\n|\r)*?}[\r|\n]/mg,
-		match => {
-
-			if ( match.indexOf( '/* skip */' ) !== - 1 ) {
-
-				return '';
-
-			} else {
-
-				return 'let stride2Offset = stride4Offset * 2, ' +
-					'float32Array = _float32Array, ' +
-					'uint16Array = _uint16Array, ' +
-					'uint32Array = _uint32Array;\n';
-
-			}
-
-		}
-
-	);
-
 	str = str.replace( /function intersectRay\((.|[\r\n])*?}[\r|\n]/mg, '' );
 
 	str = str.replace( /import { arrayToBox.*?;[\r\n]/g, '' );
@@ -152,6 +131,20 @@ function replaceFunctionNames( str ) {
 		}
 	);
 
+	str = str.replace(
+		new RegExp( `\n(.+?)${ orNames }.+? {`, 'gm' ),
+		match => {
+
+			const whitespace = match.match( /^\s+/ )[ 0 ];
+			return match + '\n' + whitespace + '\t' +
+				'let stride2Offset = stride4Offset * 2, ' +
+				'float32Array = _float32Array, ' +
+				'uint16Array = _uint16Array, ' +
+				'uint32Array = _uint32Array;\n';
+
+		}
+	);
+
 	return str;
 
 }
diff --git a/src/castFunctionsBuffer.js b/src/castFunctionsBuffer.js
index e50195511..4b4d3fdbd 100644
--- a/src/castFunctionsBuffer.js
+++ b/src/castFunctionsBuffer.js
@@ -118,6 +118,8 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 
 export const shapecastBuffer = ( function () {
 
+	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
 	const _triangle = new SeparatingAxisTriangle();
 	const _cachedBox1 = new Box3();
 	const _cachedBox2 = new Box3();
@@ -192,8 +194,6 @@ export const shapecastBuffer = ( function () {
 
 		}
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
 		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
 		if ( isLeaf && intersectsTriangleFunc ) {
 
@@ -327,6 +327,8 @@ export const shapecastBuffer = ( function () {
 
 export const intersectsGeometryBuffer = ( function () {
 
+	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
 	const triangle = new SeparatingAxisTriangle();
 	const triangle2 = new SeparatingAxisTriangle();
 	const cachedMesh = new Mesh();

From 6fbecbf6b8285f2009ba6ca0114e17f0010e47c7 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 19:19:31 -0800
Subject: [PATCH 016/139] Revert "Fix cast function generation"

This reverts commit 11f8d118d536e7e60a1a2350003e34e684b1d9ed.
---
 scripts/generate-cast-functions.js | 35 ++++++++++++++++++------------
 src/castFunctionsBuffer.js         |  6 ++---
 2 files changed, 23 insertions(+), 18 deletions(-)

diff --git a/scripts/generate-cast-functions.js b/scripts/generate-cast-functions.js
index 37a502ef0..6d27eb3aa 100644
--- a/scripts/generate-cast-functions.js
+++ b/scripts/generate-cast-functions.js
@@ -5,6 +5,27 @@ const path = require( 'path' );
 // a function definition so we can replace that with local variable definitions we need.
 function replaceUnneededCode( str ) {
 
+	str = str.replace(
+		/if \( [^)]*node.continueGeneration \)(.|\n|\r)*?}[\r|\n]/mg,
+		match => {
+
+			if ( match.indexOf( '/* skip */' ) !== - 1 ) {
+
+				return '';
+
+			} else {
+
+				return 'let stride2Offset = stride4Offset * 2, ' +
+					'float32Array = _float32Array, ' +
+					'uint16Array = _uint16Array, ' +
+					'uint32Array = _uint32Array;\n';
+
+			}
+
+		}
+
+	);
+
 	str = str.replace( /function intersectRay\((.|[\r\n])*?}[\r|\n]/mg, '' );
 
 	str = str.replace( /import { arrayToBox.*?;[\r\n]/g, '' );
@@ -131,20 +152,6 @@ function replaceFunctionNames( str ) {
 		}
 	);
 
-	str = str.replace(
-		new RegExp( `\n(.+?)${ orNames }.+? {`, 'gm' ),
-		match => {
-
-			const whitespace = match.match( /^\s+/ )[ 0 ];
-			return match + '\n' + whitespace + '\t' +
-				'let stride2Offset = stride4Offset * 2, ' +
-				'float32Array = _float32Array, ' +
-				'uint16Array = _uint16Array, ' +
-				'uint32Array = _uint32Array;\n';
-
-		}
-	);
-
 	return str;
 
 }
diff --git a/src/castFunctionsBuffer.js b/src/castFunctionsBuffer.js
index 4b4d3fdbd..e50195511 100644
--- a/src/castFunctionsBuffer.js
+++ b/src/castFunctionsBuffer.js
@@ -118,8 +118,6 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 
 export const shapecastBuffer = ( function () {
 
-	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
 	const _triangle = new SeparatingAxisTriangle();
 	const _cachedBox1 = new Box3();
 	const _cachedBox2 = new Box3();
@@ -194,6 +192,8 @@ export const shapecastBuffer = ( function () {
 
 		}
 
+		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
 		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
 		if ( isLeaf && intersectsTriangleFunc ) {
 
@@ -327,8 +327,6 @@ export const shapecastBuffer = ( function () {
 
 export const intersectsGeometryBuffer = ( function () {
 
-	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
 	const triangle = new SeparatingAxisTriangle();
 	const triangle2 = new SeparatingAxisTriangle();
 	const cachedMesh = new Mesh();

From f4ba4225bcb459895fa3b93c8634cb0bc988c239 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 19:22:24 -0800
Subject: [PATCH 017/139] fix buffer functions

---
 scripts/generate-cast-functions.js | 2 +-
 src/castFunctions.js               | 8 ++++++++
 src/castFunctionsBuffer.js         | 9 ++-------
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/scripts/generate-cast-functions.js b/scripts/generate-cast-functions.js
index 6d27eb3aa..f7f626199 100644
--- a/scripts/generate-cast-functions.js
+++ b/scripts/generate-cast-functions.js
@@ -6,7 +6,7 @@ const path = require( 'path' );
 function replaceUnneededCode( str ) {
 
 	str = str.replace(
-		/if \( [^)]*node.continueGeneration \)(.|\n|\r)*?}[\r|\n]/mg,
+		/\/\* INSERT_BUFFER_VARS \*\//mg,
 		match => {
 
 			if ( match.indexOf( '/* skip */' ) !== - 1 ) {
diff --git a/src/castFunctions.js b/src/castFunctions.js
index 9efd3aa89..44508da61 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -21,6 +21,8 @@ function intersectRay( node, ray, target ) {
 
 export function raycast( node, mesh, raycaster, ray, intersects ) {
 
+	/* INSERT_BUFFER_VARS */
+
 	const isLeaf = ! ! node.count;
 	if ( isLeaf ) {
 
@@ -46,6 +48,8 @@ export function raycast( node, mesh, raycaster, ray, intersects ) {
 
 export function raycastFirst( node, mesh, raycaster, ray ) {
 
+	/* INSERT_BUFFER_VARS */
+
 	const isLeaf = ! ! node.count;
 	if ( isLeaf ) {
 
@@ -162,6 +166,8 @@ export const shapecast = ( function () {
 		cachedBox2 = _cachedBox2
 	) {
 
+		/* INSERT_BUFFER_VARS */
+
 		// Define these inside the function so it has access to the local variables needed
 		// when converting to the buffer equivalents
 		function getLeftOffset( node ) {
@@ -331,6 +337,8 @@ export const intersectsGeometry = ( function () {
 
 	return function intersectsGeometry( node, mesh, geometry, geometryToBvh, cachedObb = null ) {
 
+		/* INSERT_BUFFER_VARS */
+
 		if ( cachedObb === null ) {
 
 			if ( ! geometry.boundingBox ) {
diff --git a/src/castFunctionsBuffer.js b/src/castFunctionsBuffer.js
index e50195511..2fdf81f09 100644
--- a/src/castFunctionsBuffer.js
+++ b/src/castFunctionsBuffer.js
@@ -7,7 +7,6 @@
 
 import { Box3, Vector3, Mesh, Matrix4 } from 'three';
 import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
-
 import { OrientedBox } from './Utils/OrientedBox.js';
 import { setTriangle } from './Utils/TriangleUtils.js';
 import { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';
@@ -162,12 +161,12 @@ export const shapecastBuffer = ( function () {
 		cachedBox2 = _cachedBox2
 	) {
 
+		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
 		// Define these inside the function so it has access to the local variables needed
 		// when converting to the buffer equivalents
 		function getLeftOffsetBuffer( stride4Offset ) {
 
-			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
 			while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
 
 				/* node */ stride4Offset = /* node left */ stride4Offset + 8, stride2Offset = stride4Offset * 2;
@@ -180,8 +179,6 @@ export const shapecastBuffer = ( function () {
 
 		function getRightEndOffsetBuffer( stride4Offset ) {
 
-			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
 			while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
 
 				/* node */ stride4Offset = /* node right */ uint32Array[ stride4Offset + 6 ], stride2Offset = stride4Offset * 2;
@@ -192,8 +189,6 @@ export const shapecastBuffer = ( function () {
 
 		}
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
 		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
 		if ( isLeaf && intersectsTriangleFunc ) {
 

From 3b11703830a419cea3e5e85f66e22460979f82a5 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 19:24:19 -0800
Subject: [PATCH 018/139] fix configs

---
 babel.config.js => babel.config.json | 4 ++--
 jest.config.js                       | 4 ----
 jest.config.json                     | 4 ++++
 3 files changed, 6 insertions(+), 6 deletions(-)
 rename babel.config.js => babel.config.json (62%)
 delete mode 100644 jest.config.js
 create mode 100644 jest.config.json

diff --git a/babel.config.js b/babel.config.json
similarity index 62%
rename from babel.config.js
rename to babel.config.json
index f85ad4fb6..91d4cc74e 100644
--- a/babel.config.js
+++ b/babel.config.json
@@ -1,3 +1,3 @@
-module.exports = {
+{
 	"presets": [ "@babel/preset-env" ]
-};
+}
diff --git a/jest.config.js b/jest.config.js
deleted file mode 100644
index dbab266e2..000000000
--- a/jest.config.js
+++ /dev/null
@@ -1,4 +0,0 @@
-module.exports = {
-	verbose: true,
-	transformIgnorePatterns: []
-};
diff --git a/jest.config.json b/jest.config.json
new file mode 100644
index 000000000..e5de9755e
--- /dev/null
+++ b/jest.config.json
@@ -0,0 +1,4 @@
+{
+	"verbose": true,
+	"transformIgnorePatterns": []
+}

From a13662b4d7eae0b0d7742566aca12da70abd10b3 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 20:20:17 -0800
Subject: [PATCH 019/139] Update README.md

---
 README.md | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/README.md b/README.md
index 7eb71c064..1c503be7d 100644
--- a/README.md
+++ b/README.md
@@ -124,6 +124,8 @@ geometry.boundsTree = deserializedBVH;
 
 ## Asynchronous Generation
 
+_NOTE WebWorker syntax is inconsistently supported across bundlers and sometimes not supported at all so the GenereateMeshBVHWorker class is not exported from the package root. If needed the code from `src/worker` can be copied and modified to accomodate a particular build process._
+
 ```js
 import { GenerateMeshBVHWorker } from 'three-mesh-bvh/src/workers/GenerateMeshBVHWorker.js';
 
@@ -452,6 +454,36 @@ If the raycaster object being used has a property `firstHitOnly` set to `true`,
 THREE.Mesh.prototype.raycast = acceleratedRaycast;
 ```
 
+## GenerateMeshBVHWorker
+
+Helper class for generating a MeshBVH for a given geometry in asynchronously in a worker. The geometry position and index buffer attribute `ArrayBuffers` are transferred to the Worker while the BVH is being generated meaning the geometry will be unavailable to use while the BVH is being processed unless `SharedArrayBuffers` are used. They will be automatically replaced when the MeshBVH is finished generating.
+
+_NOTE It's best to reuse a single instance of this class to avoid the overhead of instantiating a new Worker._
+
+### .running
+
+```js
+running : Boolean;
+```
+
+Flag indicating whether or not a BVH is already being generated in the worker.
+
+### .generate
+
+```js
+generate( geometry : BufferGeometry, options : Object ) : Promise< MeshBVH >;
+```
+
+Generates a MeshBVH instance for the given geometry with the given options in a WebWorker. Returns a promise that resolves with the generated MeshBVH. This function will throw an error if it is already running.
+
+### .terminate
+
+```js
+terminate() : Boolean;
+```
+
+Terminates the worker.
+
 ## Debug Functions
 
 ### estimateMemoryInBytes

From 65cc923547db3f47d4fe37d98f47a383bf3779e6 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 20:25:12 -0800
Subject: [PATCH 020/139] Remove lazyGeneration flags from tests

---
 test/MeshBVH.test.js | 54 ++++++++++++++++++++++----------------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/test/MeshBVH.test.js b/test/MeshBVH.test.js
index d7b516df9..811494534 100644
--- a/test/MeshBVH.test.js
+++ b/test/MeshBVH.test.js
@@ -28,7 +28,7 @@ describe( 'Bounds Tree', () => {
 	it( 'should properly encapsulate all triangles and bounds.', () => {
 
 		const geom = new SphereBufferGeometry( 500, 50, 50 );
-		const bvh = new MeshBVH( geom, { lazyGeneration: false } );
+		const bvh = new MeshBVH( geom );
 		const debug = new MeshBVHDebug( bvh, geom );
 
 		expect( debug.validateBounds() ).toBeTruthy();
@@ -183,7 +183,7 @@ describe( 'Serialization', () => {
 	it( 'should serialize then deserialize to the same structure.', () => {
 
 		const geom = new SphereBufferGeometry( 1, 10, 10 );
-		const bvh = new MeshBVH( geom, { packData: true, lazyGeneration: false } );
+		const bvh = new MeshBVH( geom, { packData: true } );
 		const serialized = MeshBVH.serialize( bvh, geom );
 
 		const deserializedBVH = MeshBVH.deserialize( serialized, geom );
@@ -194,7 +194,7 @@ describe( 'Serialization', () => {
 	it( 'should copy the index buffer from the target geometry unless copyIndex is set to false', () => {
 
 		const geom = new SphereBufferGeometry( 1, 10, 10 );
-		const bvh = new MeshBVH( geom, { packData: true, lazyGeneration: false } );
+		const bvh = new MeshBVH( geom, { packData: true } );
 
 		expect( geom.index.array ).not.toBe( MeshBVH.serialize( bvh, geom ).index );
 		expect( geom.index.array ).toBe( MeshBVH.serialize( bvh, geom, false ).index );
@@ -205,7 +205,7 @@ describe( 'Serialization', () => {
 
 		const geom1 = new SphereBufferGeometry( 1, 10, 10 );
 		const geom2 = new SphereBufferGeometry( 1, 10, 10 );
-		const bvh = new MeshBVH( geom1, { packData: true, lazyGeneration: false } );
+		const bvh = new MeshBVH( geom1, { packData: true } );
 		const serialized = MeshBVH.serialize( bvh, geom1 );
 
 		expect( geom2.index.array ).not.toBe( serialized.index );
@@ -221,22 +221,22 @@ describe( 'Serialization', () => {
 
 	} );
 
-	it( 'should complete the tree and then deserialize to packed buffer data if original tree is lazily constructed.', () => {
+	// it( 'should complete the tree and then deserialize to packed buffer data if original tree is lazily constructed.', () => {
 
-		const geom = new SphereBufferGeometry( 1, 10, 10 );
-		const bvh = new MeshBVH( geom, { packData: false, lazyGeneration: true } );
+	// 	const geom = new SphereBufferGeometry( 1, 10, 10 );
+	// 	const bvh = new MeshBVH( geom, { packData: false, lazyGeneration: true } );
 
-		expect( getMaxDepth( bvh ) ).toBe( 0 );
+	// 	expect( getMaxDepth( bvh ) ).toBe( 0 );
 
-		const serialized = MeshBVH.serialize( bvh, geom );
+	// 	const serialized = MeshBVH.serialize( bvh, geom );
 
-		expect( getMaxDepth( bvh ) ).toBeGreaterThan( 0 );
+	// 	expect( getMaxDepth( bvh ) ).toBeGreaterThan( 0 );
 
-		const deserializedBVH = MeshBVH.deserialize( serialized, geom );
-		expect( deserializedBVH._isPacked ).toBeTruthy();
-		expect( deserializedBVH._roots[ 0 ] instanceof ArrayBuffer ).toBeTruthy();
+	// 	const deserializedBVH = MeshBVH.deserialize( serialized, geom );
+	// 	expect( deserializedBVH._isPacked ).toBeTruthy();
+	// 	expect( deserializedBVH._roots[ 0 ] instanceof ArrayBuffer ).toBeTruthy();
 
-	} );
+	// } );
 
 	it( 'should create a new index if one does not exist when deserializing', () => {
 
@@ -268,7 +268,7 @@ describe( 'Options', () => {
 
 		it( 'should not be limited by default', () => {
 
-			mesh.geometry.computeBoundsTree( { lazyGeneration: false } );
+			mesh.geometry.computeBoundsTree();
 
 			const depth = getMaxDepth( mesh.geometry.boundsTree );
 			expect( depth ).toBeGreaterThan( 10 );
@@ -277,7 +277,7 @@ describe( 'Options', () => {
 
 		it( 'should cap the depth of the bounds tree', () => {
 
-			mesh.geometry.computeBoundsTree( { maxDepth: 10, verbose: false, lazyGeneration: false } );
+			mesh.geometry.computeBoundsTree( { maxDepth: 10, verbose: false } );
 
 			const depth = getMaxDepth( mesh.geometry.boundsTree );
 			expect( depth ).toEqual( 10 );
@@ -308,9 +308,9 @@ describe( 'Options', () => {
 
 	describe( 'packData & lazyGeneration', () => {
 
-		it( 'should be constructed to array buffers if packData is true and lazyGeneration is false.', () => {
+		it( 'should be constructed to array buffers if packData is true', () => {
 
-			mesh.geometry.computeBoundsTree( { packData: true, lazyGeneration: false } );
+			mesh.geometry.computeBoundsTree( { packData: true } );
 
 			const bvh = mesh.geometry.boundsTree;
 			expect( bvh._isPacked ).toBeTruthy();
@@ -319,9 +319,9 @@ describe( 'Options', () => {
 
 		} );
 
-		it( 'should be fully constructed as nodes if packData and lazyGeneration are false.', () => {
+		it( 'should be fully constructed as nodes if packData is false.', () => {
 
-			mesh.geometry.computeBoundsTree( { packData: false, lazyGeneration: false } );
+			mesh.geometry.computeBoundsTree( { packData: false } );
 
 			const bvh = mesh.geometry.boundsTree;
 			expect( bvh._isPacked ).toBeFalsy();
@@ -330,16 +330,16 @@ describe( 'Options', () => {
 
 		} );
 
-		it( 'should be partially constructed as nodes if packData is false and lazyGeneration is true.', () => {
+		// it( 'should be partially constructed as nodes if packData is false and lazyGeneration is true.', () => {
 
-			mesh.geometry.computeBoundsTree( { packData: false, lazyGeneration: true } );
+		// 	mesh.geometry.computeBoundsTree( { packData: false, lazyGeneration: true } );
 
-			const bvh = mesh.geometry.boundsTree;
-			expect( bvh._isPacked ).toBeFalsy();
-			expect( bvh._roots[ 0 ] instanceof ArrayBuffer ).toBeFalsy();
-			expect( getMaxDepth( bvh ) ).toBe( 0 );
+		// 	const bvh = mesh.geometry.boundsTree;
+		// 	expect( bvh._isPacked ).toBeFalsy();
+		// 	expect( bvh._roots[ 0 ] instanceof ArrayBuffer ).toBeFalsy();
+		// 	expect( getMaxDepth( bvh ) ).toBe( 0 );
 
-		} );
+		// } );
 
 	} );
 

From 6abc8dee9ad93c6fadc99a162cbfd09d7f59a15e Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 20:25:52 -0800
Subject: [PATCH 021/139] remove obsolete tests

---
 test/MeshBVH.test.js | 30 +-----------------------------
 1 file changed, 1 insertion(+), 29 deletions(-)

diff --git a/test/MeshBVH.test.js b/test/MeshBVH.test.js
index 811494534..ab03f2263 100644
--- a/test/MeshBVH.test.js
+++ b/test/MeshBVH.test.js
@@ -221,23 +221,6 @@ describe( 'Serialization', () => {
 
 	} );
 
-	// it( 'should complete the tree and then deserialize to packed buffer data if original tree is lazily constructed.', () => {
-
-	// 	const geom = new SphereBufferGeometry( 1, 10, 10 );
-	// 	const bvh = new MeshBVH( geom, { packData: false, lazyGeneration: true } );
-
-	// 	expect( getMaxDepth( bvh ) ).toBe( 0 );
-
-	// 	const serialized = MeshBVH.serialize( bvh, geom );
-
-	// 	expect( getMaxDepth( bvh ) ).toBeGreaterThan( 0 );
-
-	// 	const deserializedBVH = MeshBVH.deserialize( serialized, geom );
-	// 	expect( deserializedBVH._isPacked ).toBeTruthy();
-	// 	expect( deserializedBVH._roots[ 0 ] instanceof ArrayBuffer ).toBeTruthy();
-
-	// } );
-
 	it( 'should create a new index if one does not exist when deserializing', () => {
 
 		const geom = new SphereBufferGeometry( 1, 10, 10 );
@@ -306,7 +289,7 @@ describe( 'Options', () => {
 
 	} );
 
-	describe( 'packData & lazyGeneration', () => {
+	describe( 'packData', () => {
 
 		it( 'should be constructed to array buffers if packData is true', () => {
 
@@ -330,17 +313,6 @@ describe( 'Options', () => {
 
 		} );
 
-		// it( 'should be partially constructed as nodes if packData is false and lazyGeneration is true.', () => {
-
-		// 	mesh.geometry.computeBoundsTree( { packData: false, lazyGeneration: true } );
-
-		// 	const bvh = mesh.geometry.boundsTree;
-		// 	expect( bvh._isPacked ).toBeFalsy();
-		// 	expect( bvh._roots[ 0 ] instanceof ArrayBuffer ).toBeFalsy();
-		// 	expect( getMaxDepth( bvh ) ).toBe( 0 );
-
-		// } );
-
 	} );
 
 	describe( 'strategy', () => {

From 785f9913fe0d4c43811762485f06f787f44b45ac Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 20:27:58 -0800
Subject: [PATCH 022/139] Remove more lazyGeneration references from tests

---
 test/RandomRaycasts.test.js      | 18 ++++++------------
 test/RandomRaycastsRepro.test.js |  9 +++------
 test/ShapeCasts.test.js          |  7 ++-----
 3 files changed, 11 insertions(+), 23 deletions(-)

diff --git a/test/RandomRaycasts.test.js b/test/RandomRaycasts.test.js
index bf8cc2be2..48ff9fadc 100644
--- a/test/RandomRaycasts.test.js
+++ b/test/RandomRaycasts.test.js
@@ -99,9 +99,6 @@ function runRandomTests( options ) {
 				raycaster.firstHitOnly = true;
 				const firstHit = raycaster.intersectObject( scene, true );
 
-				// run the og hits _after_ because in the lazy generation case
-				// the indices will be changing as the tree is generated and make
-				// the results will look different.
 				ungroupedGeometry.boundsTree = null;
 				groupedGeometry.boundsTree = null;
 				const ogHits = raycaster.intersectObject( scene, true );
@@ -119,24 +116,21 @@ function runRandomTests( options ) {
 
 describe( 'Random CENTER intersections', () => {
 
-	describe( 'split', () => runRandomTests( { strategy: CENTER, packData: false, lazyGeneration: false } ) );
-	describe( 'Lazy split', () => runRandomTests( { strategy: CENTER, packData: false, lazyGeneration: true } ) );
-	describe( 'Packed split', () => runRandomTests( { strategy: CENTER, packData: true, lazyGeneration: false } ) );
+	describe( 'split', () => runRandomTests( { strategy: CENTER, packData: false } ) );
+	describe( 'Packed split', () => runRandomTests( { strategy: CENTER, packData: true } ) );
 
 } );
 
 describe( 'Random AVERAGE intersections', () => {
 
-	describe( 'split', () => runRandomTests( { strategy: AVERAGE, packData: false, lazyGeneration: false } ) );
-	describe( 'Lazy split', () => runRandomTests( { strategy: AVERAGE, packData: false, lazyGeneration: true } ) );
-	describe( 'Packed split', () => runRandomTests( { strategy: AVERAGE, packData: true, lazyGeneration: false } ) );
+	describe( 'split', () => runRandomTests( { strategy: AVERAGE, packData: false } ) );
+	describe( 'Packed split', () => runRandomTests( { strategy: AVERAGE, packData: true } ) );
 
 } );
 
 describe( 'Random SAH intersections', () => {
 
-	describe( 'split', () => runRandomTests( { strategy: SAH, packData: false, lazyGeneration: false } ) );
-	describe( 'Lazy split', () => runRandomTests( { strategy: SAH, packData: false, lazyGeneration: true } ) );
-	describe( 'Packed split', () => runRandomTests( { strategy: SAH, packData: true, lazyGeneration: false } ) );
+	describe( 'split', () => runRandomTests( { strategy: SAH, packData: false } ) );
+	describe( 'Packed split', () => runRandomTests( { strategy: SAH, packData: true } ) );
 
 } );
diff --git a/test/RandomRaycastsRepro.test.js b/test/RandomRaycastsRepro.test.js
index b9e37c72e..eb8854772 100644
--- a/test/RandomRaycastsRepro.test.js
+++ b/test/RandomRaycastsRepro.test.js
@@ -95,9 +95,6 @@ function runRandomTest( options, transformSeed, raySeed ) {
 			raycaster.firstHitOnly = true;
 			const firstHit = raycaster.intersectObject( scene, true );
 
-			// run the og hits _after_ because in the lazy generation case
-			// the indices will be changing as the tree is generated and make
-			// the results will look different.
 			ungroupedGeometry.boundsTree = null;
 			groupedGeometry.boundsTree = null;
 			const ogHits = raycaster.intersectObject( scene, true );
@@ -112,6 +109,6 @@ function runRandomTest( options, transformSeed, raySeed ) {
 }
 
 
-runRandomTest( { strategy: AVERAGE, packData: true, lazyGeneration: false }, 7830035629, 4697211981 );
-runRandomTest( { strategy: AVERAGE, packData: true, lazyGeneration: false }, 8294928772, 1592666709 );
-runRandomTest( { strategy: SAH, packData: true, lazyGeneration: false }, 81992501, 8903271423 );
+runRandomTest( { strategy: AVERAGE, packData: true }, 7830035629, 4697211981 );
+runRandomTest( { strategy: AVERAGE, packData: true }, 8294928772, 1592666709 );
+runRandomTest( { strategy: SAH, packData: true }, 81992501, 8903271423 );
diff --git a/test/ShapeCasts.test.js b/test/ShapeCasts.test.js
index 62f2d2b32..1cc9ac78d 100644
--- a/test/ShapeCasts.test.js
+++ b/test/ShapeCasts.test.js
@@ -30,9 +30,8 @@ BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
 
 describe( 'Shape Casts', () => {
 
-	describe( 'lazy: true, packed: false', () => runSuiteWithOptions( { lazyGeneration: true, packedData: false } ) );
-	describe( 'lazy: false, packed: false', () => runSuiteWithOptions( { lazyGeneration: false, packedData: false } ) );
-	describe( 'lazy: false, packed: true', () => runSuiteWithOptions( { lazyGeneration: false, packedData: true } ) );
+	describe( 'packed: false', () => runSuiteWithOptions( { packedData: false } ) );
+	describe( 'packed: true', () => runSuiteWithOptions( { packedData: true } ) );
 
 } );
 
@@ -650,8 +649,6 @@ function runSuiteWithOptions( defaultOptions ) {
 
 				const bvh = new MeshBVH( geometry );
 
-				// Run the bvh raycast before the builtin raycast because the bvh
-				// lazy raycast will rearrange the index.
 				geometry.boundsTree = bvh;
 				raycaster.firstHitOnly = true;
 				const bvhHits = raycaster.intersectObject( mesh, true );

From 4810c6bcdd3ecbdb6e570ff1ea8c69a41574cbfc Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 20:33:11 -0800
Subject: [PATCH 023/139] Fix buffer functions

---
 src/castFunctions.js       | 8 ++++++--
 src/castFunctionsBuffer.js | 8 ++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/castFunctions.js b/src/castFunctions.js
index 44508da61..f863e321a 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -166,12 +166,12 @@ export const shapecast = ( function () {
 		cachedBox2 = _cachedBox2
 	) {
 
-		/* INSERT_BUFFER_VARS */
-
 		// Define these inside the function so it has access to the local variables needed
 		// when converting to the buffer equivalents
 		function getLeftOffset( node ) {
 
+			/* INSERT_BUFFER_VARS */
+
 			while ( ! node.count ) {
 
 				node = node.left;
@@ -184,6 +184,8 @@ export const shapecast = ( function () {
 
 		function getRightEndOffset( node ) {
 
+			/* INSERT_BUFFER_VARS */
+
 			while ( ! node.count ) {
 
 				node = node.right;
@@ -194,6 +196,8 @@ export const shapecast = ( function () {
 
 		}
 
+		/* INSERT_BUFFER_VARS */
+
 		const isLeaf = ! ! node.count;
 		if ( isLeaf && intersectsTriangleFunc ) {
 
diff --git a/src/castFunctionsBuffer.js b/src/castFunctionsBuffer.js
index 2fdf81f09..8dcc88d19 100644
--- a/src/castFunctionsBuffer.js
+++ b/src/castFunctionsBuffer.js
@@ -161,12 +161,12 @@ export const shapecastBuffer = ( function () {
 		cachedBox2 = _cachedBox2
 	) {
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
 		// Define these inside the function so it has access to the local variables needed
 		// when converting to the buffer equivalents
 		function getLeftOffsetBuffer( stride4Offset ) {
 
+			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
 			while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
 
 				/* node */ stride4Offset = /* node left */ stride4Offset + 8, stride2Offset = stride4Offset * 2;
@@ -179,6 +179,8 @@ export const shapecastBuffer = ( function () {
 
 		function getRightEndOffsetBuffer( stride4Offset ) {
 
+			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
 			while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
 
 				/* node */ stride4Offset = /* node right */ uint32Array[ stride4Offset + 6 ], stride2Offset = stride4Offset * 2;
@@ -189,6 +191,8 @@ export const shapecastBuffer = ( function () {
 
 		}
 
+		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
 		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
 		if ( isLeaf && intersectsTriangleFunc ) {
 

From 3b15327153a533e10f229b11fbebfd045406552a Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 21:06:44 -0800
Subject: [PATCH 024/139] Update benchmark

---
 benchmark/run-benchmark.js | 31 +++++++++++++------------------
 src/castFunctionsBuffer.js |  1 +
 2 files changed, 14 insertions(+), 18 deletions(-)

diff --git a/benchmark/run-benchmark.js b/benchmark/run-benchmark.js
index c4a109f40..f20bdf833 100644
--- a/benchmark/run-benchmark.js
+++ b/benchmark/run-benchmark.js
@@ -42,11 +42,9 @@ function logExtremes( bvh, geometry ) {
 
 }
 
-function runSuite( strategy, lazyGeneration = true ) {
-
-	const options = { lazyGeneration, strategy };
-	let preFunc = lazyGeneration ? () => geometry.computeBoundsTree( options ) : null;
+function runSuite( strategy ) {
 
+	const options = { strategy };
 	geometry.computeBoundsTree( options );
 	logExtremes( geometry.boundsTree, geometry );
 
@@ -69,7 +67,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'Serialize',
-		preFunc,
+		null,
 		() => {
 
 			MeshBVH.serialize( geometry.boundsTree, geometry );
@@ -84,7 +82,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'Deserialize',
-		preFunc,
+		null,
 		() => {
 
 			MeshBVH.deserialize( serialized, geometry );
@@ -100,7 +98,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'BVH Raycast',
-		preFunc,
+		null,
 		() => mesh.raycast( raycaster, [] ),
 		3000
 
@@ -110,7 +108,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'First Hit Raycast',
-		preFunc,
+		null,
 		() => mesh.raycast( raycaster, [] ),
 		3000
 
@@ -119,7 +117,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'Sphere Shapecast',
-		preFunc,
+		null,
 		() => {
 
 			mesh.geometry.boundsTree.shapecast( mesh, box => sphere.intersectsBox( box ), tri => {
@@ -136,7 +134,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'IntersectsSphere',
-		preFunc,
+		null,
 		() => mesh.geometry.boundsTree.intersectsSphere( mesh, sphere ),
 		3000
 
@@ -145,7 +143,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'IntersectsBox',
-		preFunc,
+		null,
 		() => mesh.geometry.boundsTree.intersectsBox( mesh, box, boxMat ),
 		3000
 
@@ -154,7 +152,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'DistanceToGeometry',
-		preFunc,
+		null,
 		() => mesh.geometry.boundsTree.closestPointToGeometry( mesh, intersectGeometry, geomMat, target1, target2 ),
 		3000
 
@@ -164,7 +162,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'DistanceToPoint',
-		preFunc,
+		null,
 		() => mesh.geometry.boundsTree.closestPointToPoint( mesh, vec, target1 ),
 		3000
 
@@ -176,7 +174,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'IntersectsGeometry with BVH',
-		preFunc,
+		null,
 		() => mesh.geometry.boundsTree.intersectsGeometry( mesh, intersectGeometry, geomMat ),
 		3000
 
@@ -187,7 +185,7 @@ function runSuite( strategy, lazyGeneration = true ) {
 	runBenchmark(
 
 		'IntersectsGeometry without BVH',
-		preFunc,
+		null,
 		() => mesh.geometry.boundsTree.intersectsGeometry( mesh, intersectGeometry, geomMat ),
 		3000
 
@@ -199,9 +197,6 @@ function runSuite( strategy, lazyGeneration = true ) {
 console.log( '*Strategy: CENTER*' );
 runSuite( CENTER );
 
-console.log( '' );
-console.log( '*Strategy: Non-Lazy CENTER*' );
-runSuite( CENTER, false );
 
 console.log( '' );
 console.log( '*Strategy: AVERAGE*' );
diff --git a/src/castFunctionsBuffer.js b/src/castFunctionsBuffer.js
index 8dcc88d19..e50195511 100644
--- a/src/castFunctionsBuffer.js
+++ b/src/castFunctionsBuffer.js
@@ -7,6 +7,7 @@
 
 import { Box3, Vector3, Mesh, Matrix4 } from 'three';
 import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
+
 import { OrientedBox } from './Utils/OrientedBox.js';
 import { setTriangle } from './Utils/TriangleUtils.js';
 import { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';

From a67e0e9ab21aff7280d66cd01d50c7d660481a23 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 21:34:14 -0800
Subject: [PATCH 025/139] Remove support for the non packed bvh option

---
 src/MeshBVH.js       | 149 +++-----------
 src/castFunctions.js | 466 -------------------------------------------
 2 files changed, 33 insertions(+), 582 deletions(-)
 delete mode 100644 src/castFunctions.js

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 681e6e70d..47e2c3095 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -4,13 +4,6 @@ import { buildTree } from './buildFunctions.js';
 import { OrientedBox } from './Utils/OrientedBox.js';
 import { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';
 import { setTriangle } from './Utils/TriangleUtils.js';
-import {
-	raycast,
-	raycastFirst,
-	shapecast,
-	intersectsGeometry,
-} from './castFunctions.js';
-
 import {
 	raycastBuffer,
 	raycastFirstBuffer,
@@ -136,7 +129,6 @@ export default class MeshBVH {
 		const { index, roots } = data;
 		const bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );
 		bvh._roots = roots;
-		bvh._isPacked = true;
 
 		if ( setIndex ) {
 
@@ -185,26 +177,18 @@ export default class MeshBVH {
 
 			// undocumented options
 
-			// whether to the pack the data as a buffer or not.
-			packData: true,
-
 			// Whether to skip generating the tree. Used for deserialization.
 			[ SKIP_GENERATION ]: false
 
 		}, options );
 		options.strategy = Math.max( 0, Math.min( 2, options.strategy ) );
 
-		this._isPacked = false;
 		this._roots = null;
 		if ( ! options[ SKIP_GENERATION ] ) {
 
+			// TODO: separate the buffer packing from the serialize function
 			this._roots = buildTree( geo, options );
-			if ( options.packData ) {
-
-				this._roots = MeshBVH.serialize( this, geo, false ).roots;
-				this._isPacked = true;
-
-			}
+			this._roots = MeshBVH.serialize( this, geo, false ).roots;
 
 		}
 
@@ -212,62 +196,32 @@ export default class MeshBVH {
 
 	traverse( callback, rootIndex = 0 ) {
 
-		if ( this._isPacked ) {
-
-			const buffer = this._roots[ rootIndex ];
-			const uint32Array = new Uint32Array( buffer );
-			const uint16Array = new Uint16Array( buffer );
-			_traverseBuffer( 0 );
-
-			function _traverseBuffer( stride4Offset, depth = 0 ) {
-
-				const stride2Offset = stride4Offset * 2;
-				const isLeaf = uint16Array[ stride2Offset + 15 ];
-				if ( isLeaf ) {
-
-					const offset = uint32Array[ stride4Offset + 6 ];
-					const count = uint16Array[ stride2Offset + 14 ];
-					callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), offset, count );
-
-				} else {
-
-					const left = stride4Offset + BYTES_PER_NODE / 4;
-					const right = uint32Array[ stride4Offset + 6 ];
-					const splitAxis = uint32Array[ stride4Offset + 7 ];
-					const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), splitAxis );
-
-					if ( ! stopTraversal ) {
+		const buffer = this._roots[ rootIndex ];
+		const uint32Array = new Uint32Array( buffer );
+		const uint16Array = new Uint16Array( buffer );
+		_traverseBuffer( 0 );
 
-						_traverseBuffer( left, depth + 1 );
-						_traverseBuffer( right, depth + 1 );
+		function _traverseBuffer( stride4Offset, depth = 0 ) {
 
-					}
-
-				}
-
-			}
-
-		} else {
-
-			_traverseNode( this._roots[ rootIndex ] );
-
-			function _traverseNode( node, depth = 0 ) {
-
-				const isLeaf = ! ! node.count;
-				if ( isLeaf ) {
-
-					callback( depth, isLeaf, node.boundingData, node.offset, node.count );
+			const stride2Offset = stride4Offset * 2;
+			const isLeaf = uint16Array[ stride2Offset + 15 ];
+			if ( isLeaf ) {
 
-				} else {
+				const offset = uint32Array[ stride4Offset + 6 ];
+				const count = uint16Array[ stride2Offset + 14 ];
+				callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), offset, count );
 
-					const stopTraversal = callback( depth, isLeaf, node.boundingData, node.splitAxis );
+			} else {
 
-					if ( ! stopTraversal ) {
+				const left = stride4Offset + BYTES_PER_NODE / 4;
+				const right = uint32Array[ stride4Offset + 6 ];
+				const splitAxis = uint32Array[ stride4Offset + 7 ];
+				const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), splitAxis );
 
-						if ( node.left ) _traverseNode( node.left, depth + 1 );
-						if ( node.right ) _traverseNode( node.right, depth + 1 );
+				if ( ! stopTraversal ) {
 
-					}
+					_traverseBuffer( left, depth + 1 );
+					_traverseBuffer( right, depth + 1 );
 
 				}
 
@@ -280,43 +234,24 @@ export default class MeshBVH {
 	/* Core Cast Functions */
 	raycast( mesh, raycaster, ray, intersects ) {
 
-		const isPacked = this._isPacked;
 		for ( const root of this._roots ) {
 
-			if ( isPacked ) {
-
-				setBuffer( root );
-				raycastBuffer( 0, mesh, raycaster, ray, intersects );
-
-			} else {
-
-				raycast( root, mesh, raycaster, ray, intersects );
-
-			}
+			setBuffer( root );
+			raycastBuffer( 0, mesh, raycaster, ray, intersects );
 
 		}
 
-		isPacked && clearBuffer();
+		clearBuffer();
 
 	}
 
 	raycastFirst( mesh, raycaster, ray ) {
 
-		const isPacked = this._isPacked;
 		let closestResult = null;
 		for ( const root of this._roots ) {
 
-			let result;
-			if ( isPacked ) {
-
-				setBuffer( root );
-				result = raycastFirstBuffer( 0, mesh, raycaster, ray );
-
-			} else {
-
-				result = raycastFirst( root, mesh, raycaster, ray );
-
-			}
+			setBuffer( root );
+			const result = raycastFirstBuffer( 0, mesh, raycaster, ray );
 
 			if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
 
@@ -326,7 +261,7 @@ export default class MeshBVH {
 
 		}
 
-		isPacked && clearBuffer();
+		clearBuffer();
 
 		return closestResult;
 
@@ -334,20 +269,11 @@ export default class MeshBVH {
 
 	intersectsGeometry( mesh, geometry, geomToMesh ) {
 
-		const isPacked = this._isPacked;
 		let result = false;
 		for ( const root of this._roots ) {
 
-			if ( isPacked ) {
-
-				setBuffer( root );
-				result = intersectsGeometryBuffer( 0, mesh, geometry, geomToMesh );
-
-			} else {
-
-				result = intersectsGeometry( root, mesh, geometry, geomToMesh );
-
-			}
+			setBuffer( root );
+			result = intersectsGeometryBuffer( 0, mesh, geometry, geomToMesh );
 
 			if ( result ) {
 
@@ -357,7 +283,7 @@ export default class MeshBVH {
 
 		}
 
-		isPacked && clearBuffer();
+		clearBuffer();
 
 		return result;
 
@@ -365,20 +291,11 @@ export default class MeshBVH {
 
 	shapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {
 
-		const isPacked = this._isPacked;
 		let result = false;
 		for ( const root of this._roots ) {
 
-			if ( isPacked ) {
-
-				setBuffer( root );
-				result = shapecastBuffer( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
-
-			} else {
-
-				result = shapecast( root, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
-
-			}
+			setBuffer( root );
+			result = shapecastBuffer( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
 
 			if ( result ) {
 
@@ -388,7 +305,7 @@ export default class MeshBVH {
 
 		}
 
-		isPacked && clearBuffer();
+		clearBuffer();
 
 		return result;
 
diff --git a/src/castFunctions.js b/src/castFunctions.js
deleted file mode 100644
index f863e321a..000000000
--- a/src/castFunctions.js
+++ /dev/null
@@ -1,466 +0,0 @@
-
-import { Box3, Vector3, Mesh, Matrix4 } from 'three';
-import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
-import { arrayToBox } from './Utils/ArrayBoxUtilities.js';
-import { OrientedBox } from './Utils/OrientedBox.js';
-import { setTriangle } from './Utils/TriangleUtils.js';
-import { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';
-import { CONTAINED } from './Constants.js';
-
-const boundingBox = new Box3();
-const boxIntersection = new Vector3();
-const xyzFields = [ 'x', 'y', 'z' ];
-
-function intersectRay( node, ray, target ) {
-
-	arrayToBox( node.boundingData, boundingBox );
-
-	return ray.intersectBox( boundingBox, target );
-
-}
-
-export function raycast( node, mesh, raycaster, ray, intersects ) {
-
-	/* INSERT_BUFFER_VARS */
-
-	const isLeaf = ! ! node.count;
-	if ( isLeaf ) {
-
-		intersectTris( mesh, mesh.geometry, raycaster, ray, node.offset, node.count, intersects );
-
-	} else {
-
-		if ( intersectRay( node.left, ray, boxIntersection ) ) {
-
-			raycast( node.left, mesh, raycaster, ray, intersects );
-
-		}
-
-		if ( intersectRay( node.right, ray, boxIntersection ) ) {
-
-			raycast( node.right, mesh, raycaster, ray, intersects );
-
-		}
-
-	}
-
-}
-
-export function raycastFirst( node, mesh, raycaster, ray ) {
-
-	/* INSERT_BUFFER_VARS */
-
-	const isLeaf = ! ! node.count;
-	if ( isLeaf ) {
-
-		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, node.offset, node.count );
-
-	} else {
-
-
-		// consider the position of the split plane with respect to the oncoming ray; whichever direction
-		// the ray is coming from, look for an intersection among that side of the tree first
-		const splitAxis = node.splitAxis;
-		const xyzAxis = xyzFields[ splitAxis ];
-		const rayDir = ray.direction[ xyzAxis ];
-		const leftToRight = rayDir >= 0;
-
-		// c1 is the child to check first
-		let c1, c2;
-		if ( leftToRight ) {
-
-			c1 = node.left;
-			c2 = node.right;
-
-		} else {
-
-			c1 = node.right;
-			c2 = node.left;
-
-		}
-
-		const c1Intersection = intersectRay( c1, ray, boxIntersection );
-		const c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;
-
-		// if we got an intersection in the first node and it's closer than the second node's bounding
-		// box, we don't need to consider the second node because it couldn't possibly be a better result
-		if ( c1Result ) {
-
-			// check if the point is within the second bounds
-			const point = c1Result.point[ xyzAxis ];
-			const isOutside = leftToRight ?
-				point <= c2.boundingData[ splitAxis ] :
-				point >= c2.boundingData[ splitAxis + 3 ];
-
-			if ( isOutside ) {
-
-				return c1Result;
-
-			}
-
-		}
-
-		// either there was no intersection in the first node, or there could still be a closer
-		// intersection in the second, so check the second node and then take the better of the two
-		const c2Intersection = intersectRay( c2, ray, boxIntersection );
-		const c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;
-
-		if ( c1Result && c2Result ) {
-
-			return c1Result.distance <= c2Result.distance ? c1Result : c2Result;
-
-		} else {
-
-			return c1Result || c2Result || null;
-
-		}
-
-	}
-
-}
-
-export const shapecast = ( function () {
-
-	const _triangle = new SeparatingAxisTriangle();
-	const _cachedBox1 = new Box3();
-	const _cachedBox2 = new Box3();
-
-	function iterateOverTriangles(
-		offset,
-		count,
-		geometry,
-		intersectsTriangleFunc,
-		contained,
-		depth,
-		triangle
-	) {
-
-		const index = geometry.index;
-		const pos = geometry.attributes.position;
-		for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
-
-			setTriangle( triangle, i, index, pos );
-			triangle.needsUpdate = true;
-
-			if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
-
-				return true;
-
-			}
-
-		}
-
-		return false;
-
-	}
-
-	return function shapecast(
-		node,
-		mesh,
-		intersectsBoundsFunc,
-		intersectsTriangleFunc = null,
-		nodeScoreFunc = null,
-		depth = 0,
-		triangle = _triangle,
-		cachedBox1 = _cachedBox1,
-		cachedBox2 = _cachedBox2
-	) {
-
-		// Define these inside the function so it has access to the local variables needed
-		// when converting to the buffer equivalents
-		function getLeftOffset( node ) {
-
-			/* INSERT_BUFFER_VARS */
-
-			while ( ! node.count ) {
-
-				node = node.left;
-
-			}
-
-			return node.offset;
-
-		}
-
-		function getRightEndOffset( node ) {
-
-			/* INSERT_BUFFER_VARS */
-
-			while ( ! node.count ) {
-
-				node = node.right;
-
-			}
-
-			return node.offset + node.count;
-
-		}
-
-		/* INSERT_BUFFER_VARS */
-
-		const isLeaf = ! ! node.count;
-		if ( isLeaf && intersectsTriangleFunc ) {
-
-			const geometry = mesh.geometry;
-			const offset = node.offset;
-			const count = node.count;
-			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
-
-		} else {
-
-			const left = node.left;
-			const right = node.right;
-			let c1 = left;
-			let c2 = right;
-
-			let score1, score2;
-			let box1, box2;
-			if ( nodeScoreFunc ) {
-
-				box1 = cachedBox1;
-				box2 = cachedBox2;
-
-				arrayToBox( c1.boundingData, box1 );
-				arrayToBox( c2.boundingData, box2 );
-
-				score1 = nodeScoreFunc( box1 );
-				score2 = nodeScoreFunc( box2 );
-
-				if ( score2 < score1 ) {
-
-					c1 = right;
-					c2 = left;
-
-					const temp = score1;
-					score1 = score2;
-					score2 = temp;
-
-					box1 = box2;
-					// box2 is always set before use below
-
-				}
-
-			}
-
-			// Check box 1 intersection
-			if ( ! box1 ) {
-
-				box1 = cachedBox1;
-				arrayToBox( c1.boundingData, box1 );
-
-			}
-
-			const isC1Leaf = ! ! c1.count;
-			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
-
-			let c1StopTraversal;
-			if ( c1Intersection === CONTAINED ) {
-
-				const geometry = mesh.geometry;
-				const offset = getLeftOffset( c1 );
-				const end = getRightEndOffset( c1 );
-				const count = end - offset;
-
-				c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
-
-			} else {
-
-				c1StopTraversal =
-					c1Intersection &&
-					shapecast(
-						c1,
-						mesh,
-						intersectsBoundsFunc,
-						intersectsTriangleFunc,
-						nodeScoreFunc,
-						depth + 1,
-						triangle,
-						cachedBox1,
-						cachedBox2
-					);
-
-			}
-
-			if ( c1StopTraversal ) return true;
-
-			// Check box 2 intersection
-			// cached box2 will have been overwritten by previous traversal
-			box2 = cachedBox2;
-			arrayToBox( c2.boundingData, box2 );
-
-			const isC2Leaf = ! ! c2.count;
-			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
-
-			let c2StopTraversal;
-			if ( c2Intersection === CONTAINED ) {
-
-				const geometry = mesh.geometry;
-				const offset = getLeftOffset( c2 );
-				const end = getRightEndOffset( c2 );
-				const count = end - offset;
-
-				c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
-
-			} else {
-
-				c2StopTraversal =
-					c2Intersection &&
-					shapecast(
-						c2,
-						mesh,
-						intersectsBoundsFunc,
-						intersectsTriangleFunc,
-						nodeScoreFunc,
-						depth + 1,
-						triangle,
-						cachedBox1,
-						cachedBox2
-					);
-
-			}
-
-			if ( c2StopTraversal ) return true;
-
-			return false;
-
-		}
-
-	};
-
-} )();
-
-export const intersectsGeometry = ( function () {
-
-	const triangle = new SeparatingAxisTriangle();
-	const triangle2 = new SeparatingAxisTriangle();
-	const cachedMesh = new Mesh();
-	const invertedMat = new Matrix4();
-
-	const obb = new OrientedBox();
-	const obb2 = new OrientedBox();
-
-	return function intersectsGeometry( node, mesh, geometry, geometryToBvh, cachedObb = null ) {
-
-		/* INSERT_BUFFER_VARS */
-
-		if ( cachedObb === null ) {
-
-			if ( ! geometry.boundingBox ) {
-
-				geometry.computeBoundingBox();
-
-			}
-
-			obb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );
-			obb.update();
-			cachedObb = obb;
-
-		}
-
-		const isLeaf = ! ! node.count;
-		if ( isLeaf ) {
-
-			const thisGeometry = mesh.geometry;
-			const thisIndex = thisGeometry.index;
-			const thisPos = thisGeometry.attributes.position;
-
-			const index = geometry.index;
-			const pos = geometry.attributes.position;
-
-			const offset = node.offset;
-			const count = node.count;
-
-			// get the inverse of the geometry matrix so we can transform our triangles into the
-			// geometry space we're trying to test. We assume there are fewer triangles being checked
-			// here.
-			invertedMat.copy( geometryToBvh ).invert();
-
-			if ( geometry.boundsTree ) {
-
-				arrayToBox( node.boundingData, obb2 );
-				obb2.matrix.copy( invertedMat );
-				obb2.update();
-
-				cachedMesh.geometry = geometry;
-				const res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
-
-					tri.a.applyMatrix4( geometryToBvh );
-					tri.b.applyMatrix4( geometryToBvh );
-					tri.c.applyMatrix4( geometryToBvh );
-					tri.update();
-
-					for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
-
-						// this triangle needs to be transformed into the current BVH coordinate frame
-						setTriangle( triangle2, i, thisIndex, thisPos );
-						triangle2.update();
-						if ( tri.intersectsTriangle( triangle2 ) ) {
-
-							return true;
-
-						}
-
-					}
-
-					return false;
-
-				} );
-				cachedMesh.geometry = null;
-
-				return res;
-
-			} else {
-
-				for ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {
-
-					// this triangle needs to be transformed into the current BVH coordinate frame
-					setTriangle( triangle, i, thisIndex, thisPos );
-					triangle.a.applyMatrix4( invertedMat );
-					triangle.b.applyMatrix4( invertedMat );
-					triangle.c.applyMatrix4( invertedMat );
-					triangle.update();
-
-					for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
-
-						setTriangle( triangle2, i2, index, pos );
-						triangle2.update();
-
-						if ( triangle.intersectsTriangle( triangle2 ) ) {
-
-							return true;
-
-						}
-
-					}
-
-				}
-
-			}
-
-		} else {
-
-			const left = node.left;
-			const right = node.right;
-
-			arrayToBox( left.boundingData, boundingBox );
-			const leftIntersection =
-				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );
-
-			if ( leftIntersection ) return true;
-
-
-			arrayToBox( right.boundingData, boundingBox );
-			const rightIntersection =
-				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );
-
-			if ( rightIntersection ) return true;
-
-			return false;
-
-		}
-
-	};
-
-} )();

From eca951403e47042914d8ca1ed5016a79b7c4e359 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 21:34:46 -0800
Subject: [PATCH 026/139] Remove generate cast function

---
 package.json                       |   9 +-
 scripts/generate-cast-functions.js | 249 -----------------------------
 2 files changed, 4 insertions(+), 254 deletions(-)
 delete mode 100644 scripts/generate-cast-functions.js

diff --git a/package.json b/package.json
index 3c32ae4ec..841a2f369 100644
--- a/package.json
+++ b/package.json
@@ -7,11 +7,10 @@
   "type": "module",
   "scripts": {
     "start": "concurrently \"parcel watch ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache\" \"rollup -w -c\" \"static-server\"",
-    "generate-cast-functions": "node ./scripts/generate-cast-functions.js",
-    "build": "npm run generate-cast-functions && rollup -c & parcel build ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache --no-source-maps --no-content-hash",
-    "test": "npm run generate-cast-functions && jest",
-    "lint": "npm run generate-cast-functions && eslint \"./src/*.js\" \"./test/*.js\" \"./example/*.js\"",
-    "benchmark": "npm run generate-cast-functions && node benchmark/run-benchmark.js"
+    "build": "rollup -c & parcel build ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache --no-source-maps --no-content-hash",
+    "test": "jest",
+    "lint": "eslint \"./src/*.js\" \"./test/*.js\" \"./example/*.js\"",
+    "benchmark": "node benchmark/run-benchmark.js"
   },
   "files": [
     "src/*",
diff --git a/scripts/generate-cast-functions.js b/scripts/generate-cast-functions.js
deleted file mode 100644
index 2c0073896..000000000
--- a/scripts/generate-cast-functions.js
+++ /dev/null
@@ -1,249 +0,0 @@
-import fs from 'fs';
-import path from 'path';
-
-// Replace unneeded function definitions and checks. The `continueGeneration` block is always at the top of
-// a function definition so we can replace that with local variable definitions we need.
-function replaceUnneededCode( str ) {
-
-	str = str.replace(
-		/\/\* INSERT_BUFFER_VARS \*\//mg,
-		match => {
-
-			if ( match.indexOf( '/* skip */' ) !== - 1 ) {
-
-				return '';
-
-			} else {
-
-				return 'let stride2Offset = stride4Offset * 2, ' +
-					'float32Array = _float32Array, ' +
-					'uint16Array = _uint16Array, ' +
-					'uint32Array = _uint32Array;\n';
-
-			}
-
-		}
-
-	);
-
-	str = str.replace( /function intersectRay\((.|[\r\n])*?}[\r|\n]/mg, '' );
-
-	str = str.replace( /import { arrayToBox.*?;[\r\n]/g, '' );
-
-	return str;
-
-}
-
-// Replace function calls with buffer variants defined in the added functions.
-function replaceFunctionCalls( str ) {
-
-	str = str.replace( /arrayToBox\((.*?),/g, ( match, arg ) => {
-
-		return `arrayToBoxBuffer(${ arg }, float32Array,`;
-
-	} );
-
-	str = str.replace( /intersectRay\((.*?),/g, ( match, arg ) => {
-
-		return `intersectRayBuffer(${ arg }, float32Array,`;
-
-	} );
-
-	return str;
-
-}
-
-function replaceNodeNames( str ) {
-
-	const convertName = ( name, count = 4 ) => {
-
-		return name === 'node' ? `stride${ count }Offset` : name;
-
-	};
-
-	const names = 'c1|c2|left|right|node';
-
-	str = str.replace(
-		new RegExp( `(${ names })\\.boundingData\\[(.*)\\]\\[(.*)\\]`, 'g' ),
-		( match, name, index, index2 ) => `/* ${ name } boundingData */ float32Array[ ${ convertName( name ) } +${ index }+${ index2 }]`
-	);
-
-	str = str.replace(
-		new RegExp( `(${ names })\\.boundingData\\[(.*)\\]`, 'g' ),
-		( match, name, index ) => `/* ${ name } boundingData */ float32Array[ ${ convertName( name ) } +${ index }]`
-	);
-
-	str = str.replace(
-		new RegExp( `(${ names })\\.boundingData`, 'g' ),
-		( match, name ) => `/* ${ name } boundingData */ ${ convertName( name ) }`
-	);
-
-	str = str.replace(
-		new RegExp( `(${ names })\\.offset`, 'g' ),
-		( match, name ) => `/* ${ name } offset */ uint32Array[ ${ convertName( name ) } + 6 ]`
-	);
-
-	str = str.replace(
-		new RegExp( `! (${ names })\\.count`, 'g' ),
-		( match, name ) => `/* ${ name } count */ ( uint16Array[ ${ convertName( name, 2 ) } + 15 ] !== 0xffff )`
-	);
-
-	str = str.replace(
-		new RegExp( `(${ names })\\.count`, 'g' ),
-		( match, name ) => `/* ${ name } count */ uint16Array[ ${ convertName( name, 2 ) } + 14 ]`
-	);
-
-	str = str.replace(
-		new RegExp( `(${ names })\\.left`, 'g' ),
-		( match, name ) => `/* ${ name } left */ ${ convertName( name ) } + 8`
-	);
-
-	str = str.replace(
-		new RegExp( `(${ names })\\.right`, 'g' ),
-		( match, name ) => `/* ${ name } right */ uint32Array[ ${ convertName( name ) } + 6 ]`
-	);
-
-	str = str.replace(
-		new RegExp( `(${ names })\\.splitAxis`, 'g' ),
-		( match, name ) => `/* ${ name } splitAxis */ uint32Array[ ${ convertName( name ) } + 7 ]`
-	);
-
-	str = str.replace(
-		new RegExp( `(node)\\s*=([^;]*);`, 'g' ),
-		( match, name, content ) => {
-
-			return `/* ${ name } */ stride4Offset =${ content }, stride2Offset = stride4Offset * 2;`;
-
-		}
-	);
-
-	return str;
-
-}
-
-function replaceFunctionNames( str ) {
-
-	const orNames = '\\s(raycast|raycastFirst|shapecast|intersectsGeometry|getLeftOffset|getRightEndOffset)';
-
-	str = str.replace(
-		new RegExp( `(${ orNames })\\(([\\s\\r\\n]+)?node`, 'gm' ),
-		( match, funcName ) => {
-
-			return `${ funcName }Buffer( stride4Offset`;
-
-		}
-	);
-
-	str = str.replace(
-		new RegExp( `(${ orNames })\\(`, 'gm' ),
-		( match, funcName ) => {
-
-			return `${ funcName }Buffer(`;
-
-		}
-	);
-
-	str = str.replace(
-		new RegExp( `const(${ orNames })`, 'gm' ),
-		( match, funcName ) => {
-
-			return `const${ funcName }Buffer`;
-
-		}
-	);
-
-	return str;
-
-}
-
-function addFunctions( str ) {
-
-	str = str + `
-
-function intersectRayBuffer( stride4Offset, array, ray, target ) {
-
-	arrayToBoxBuffer( stride4Offset, array, boundingBox );
-	return ray.intersectBox( boundingBox, target );
-
-}
-
-const bufferStack = [];
-let _prevBuffer;
-let _float32Array;
-let _uint16Array;
-let _uint32Array;
-export function setBuffer( buffer ) {
-
-	if ( _prevBuffer ) {
-
-		bufferStack.push( _prevBuffer );
-
-	}
-
-	_prevBuffer = buffer;
-	_float32Array = new Float32Array( buffer );
-	_uint16Array = new Uint16Array( buffer );
-	_uint32Array = new Uint32Array( buffer );
-
-}
-
-export function clearBuffer() {
-
-	_prevBuffer = null;
-	_float32Array = null;
-	_uint16Array = null;
-	_uint32Array = null;
-
-	if ( bufferStack.length ) {
-
-		setBuffer( bufferStack.pop() );
-
-	}
-
-}
-
-function arrayToBoxBuffer( stride4Offset, array, target ) {
-
-	target.min.x = array[ stride4Offset ];
-	target.min.y = array[ stride4Offset + 1 ];
-	target.min.z = array[ stride4Offset + 2 ];
-
-	target.max.x = array[ stride4Offset + 3 ];
-	target.max.y = array[ stride4Offset + 4 ];
-	target.max.z = array[ stride4Offset + 5 ];
-
-}
-`;
-
-	return str;
-
-}
-
-function addHeaderComment( str ) {
-
-	str = `
-/**************************************************************************************************
- *
- * This file is generated from castFunctions.js and scripts/generate-cast-function.mjs. Do not edit.
- *
- *************************************************************************************************/
-` + str;
-
-	return str;
-
-}
-
-const templatePath = path.resolve( './src/castFunctions.js' );
-const bufferFilePath = path.resolve( './src/castFunctionsBuffer.js' );
-const str = fs.readFileSync( templatePath, { encoding: 'utf8' } );
-
-let result = str;
-result = replaceUnneededCode( result );
-result = replaceFunctionCalls( result );
-result = replaceNodeNames( result );
-result = replaceFunctionNames( result );
-result = addFunctions( result );
-result = addHeaderComment( result );
-result = result.replace( /^[ \t]+$/gm, '' );
-result = result.replace( /[\n\r]{3,}/g, '\n\n' );
-fs.writeFileSync( bufferFilePath, result );

From c38fbc93b3c3c785d27219f8a8fa9c310a1e7ec4 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 21:37:24 -0800
Subject: [PATCH 027/139] Update CHANGELOG.md

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a640d31e..b3ac3fdb2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Changed
 - Removed `src/worker/generateAsync.js` function. Use `GenerateMeshBVHWorker` instead.
 - Use `type: module` in package.json to enable use of es6 modules in node.
+- Remove ability to generate an unpacked BVH.
 
 ## [0.3.5] - 2021-02-28
 ### Fixed

From ab0381fa1e2af2a25a8c95412f09c2685255aaef Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 21:37:48 -0800
Subject: [PATCH 028/139] Update README.md

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 219bd4fc6..08baa3456 100644
--- a/README.md
+++ b/README.md
@@ -46,8 +46,8 @@ THREE.BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
 THREE.Mesh.prototype.raycast = acceleratedRaycast;
 
 // Generate geometry and associated BVH
-const geom = new THREE.TorusKnotBufferGeometry(10, 3, 400, 100);
-const mesh = new THREE.Mesh(geom, material);
+const geom = new THREE.TorusKnotBufferGeometry( 10, 3, 400, 100 );
+const mesh = new THREE.Mesh( geom, material );
 geom.computeBoundsTree();
 ```
 

From 23bc84e490a4d766c30e5a387793fe41bc2f6131 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 21:57:01 -0800
Subject: [PATCH 029/139] Separate buffer packing logic

---
 src/MeshBVH.js        | 98 ++-----------------------------------------
 src/buildFunctions.js | 87 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 91 insertions(+), 94 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 47e2c3095..d3831a003 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -1,6 +1,6 @@
 import { Vector3, BufferAttribute } from 'three';
 import { CENTER } from './Constants.js';
-import { buildTree } from './buildFunctions.js';
+import { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';
 import { OrientedBox } from './Utils/OrientedBox.js';
 import { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';
 import { setTriangle } from './Utils/TriangleUtils.js';
@@ -13,11 +13,6 @@ import {
 	clearBuffer,
 } from './castFunctionsBuffer.js';
 
-// boundingData  				: 6 float32
-// right / offset 				: 1 uint32
-// splitAxis / isLeaf + count 	: 1 uint32 / 2 uint16
-const BYTES_PER_NODE = 6 * 4 + 4 + 4;
-const IS_LEAFNODE_FLAG = 0xFFFF;
 const SKIP_GENERATION = Symbol( 'skip tree generation' );
 
 const obb = new OrientedBox();
@@ -30,90 +25,7 @@ export default class MeshBVH {
 
 	static serialize( bvh, geometry, copyIndexBuffer = true ) {
 
-		function countNodes( node ) {
-
-			if ( node.count ) {
-
-				return 1;
-
-			} else {
-
-				return 1 + countNodes( node.left ) + countNodes( node.right );
-
-			}
-
-		}
-
-		function populateBuffer( byteOffset, node ) {
-
-			const stride4Offset = byteOffset / 4;
-			const stride2Offset = byteOffset / 2;
-			const isLeaf = ! ! node.count;
-			const boundingData = node.boundingData;
-			for ( let i = 0; i < 6; i ++ ) {
-
-				float32Array[ stride4Offset + i ] = boundingData[ i ];
-
-			}
-
-			if ( isLeaf ) {
-
-				const offset = node.offset;
-				const count = node.count;
-				uint32Array[ stride4Offset + 6 ] = offset;
-				uint16Array[ stride2Offset + 14 ] = count;
-				uint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;
-				return byteOffset + BYTES_PER_NODE;
-
-			} else {
-
-				const left = node.left;
-				const right = node.right;
-				const splitAxis = node.splitAxis;
-
-				let nextUnusedPointer;
-				nextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );
-
-				uint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;
-				nextUnusedPointer = populateBuffer( nextUnusedPointer, right );
-
-				uint32Array[ stride4Offset + 7 ] = splitAxis;
-				return nextUnusedPointer;
-
-			}
-
-		}
-
-		let float32Array;
-		let uint32Array;
-		let uint16Array;
-
-		const roots = bvh._roots;
-		let rootData;
-
-		if ( bvh._isPacked ) {
-
-			rootData = roots;
-
-		} else {
-
-			rootData = [];
-			for ( let i = 0; i < roots.length; i ++ ) {
-
-				const root = roots[ i ];
-				let nodeCount = countNodes( root );
-
-				const buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );
-				float32Array = new Float32Array( buffer );
-				uint32Array = new Uint32Array( buffer );
-				uint16Array = new Uint16Array( buffer );
-				populateBuffer( 0, root );
-				rootData.push( buffer );
-
-			}
-
-		}
-
+		const rootData = bvh._roots;
 		const indexAttribute = geometry.getIndex();
 		const result = {
 			roots: rootData,
@@ -186,9 +98,7 @@ export default class MeshBVH {
 		this._roots = null;
 		if ( ! options[ SKIP_GENERATION ] ) {
 
-			// TODO: separate the buffer packing from the serialize function
-			this._roots = buildTree( geo, options );
-			this._roots = MeshBVH.serialize( this, geo, false ).roots;
+			this._roots = buildPackedTree( geo, options );
 
 		}
 
@@ -204,7 +114,7 @@ export default class MeshBVH {
 		function _traverseBuffer( stride4Offset, depth = 0 ) {
 
 			const stride2Offset = stride4Offset * 2;
-			const isLeaf = uint16Array[ stride2Offset + 15 ];
+			const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
 			if ( isLeaf ) {
 
 				const offset = uint32Array[ stride4Offset + 6 ];
diff --git a/src/buildFunctions.js b/src/buildFunctions.js
index a9b1658ed..f882e1492 100644
--- a/src/buildFunctions.js
+++ b/src/buildFunctions.js
@@ -639,3 +639,90 @@ export function buildTree( geo, options ) {
 	return roots;
 
 }
+
+export const BYTES_PER_NODE = 6 * 4 + 4 + 4;
+
+export const IS_LEAFNODE_FLAG = 0xFFFF;
+
+export function buildPackedTree( geo, options ) {
+
+	// boundingData  				: 6 float32
+	// right / offset 				: 1 uint32
+	// splitAxis / isLeaf + count 	: 1 uint32 / 2 uint16
+	const roots = buildTree( geo, options );
+
+	let float32Array;
+	let uint32Array;
+	let uint16Array;
+	const packedRoots = [];
+	for ( let i = 0; i < roots.length; i ++ ) {
+
+		const root = roots[ i ];
+		let nodeCount = countNodes( root );
+
+		const buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );
+		float32Array = new Float32Array( buffer );
+		uint32Array = new Uint32Array( buffer );
+		uint16Array = new Uint16Array( buffer );
+		populateBuffer( 0, root );
+		packedRoots.push( buffer );
+
+	}
+
+	return packedRoots;
+
+	function countNodes( node ) {
+
+		if ( node.count ) {
+
+			return 1;
+
+		} else {
+
+			return 1 + countNodes( node.left ) + countNodes( node.right );
+
+		}
+
+	}
+
+	function populateBuffer( byteOffset, node ) {
+
+		const stride4Offset = byteOffset / 4;
+		const stride2Offset = byteOffset / 2;
+		const isLeaf = ! ! node.count;
+		const boundingData = node.boundingData;
+		for ( let i = 0; i < 6; i ++ ) {
+
+			float32Array[ stride4Offset + i ] = boundingData[ i ];
+
+		}
+
+		if ( isLeaf ) {
+
+			const offset = node.offset;
+			const count = node.count;
+			uint32Array[ stride4Offset + 6 ] = offset;
+			uint16Array[ stride2Offset + 14 ] = count;
+			uint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;
+			return byteOffset + BYTES_PER_NODE;
+
+		} else {
+
+			const left = node.left;
+			const right = node.right;
+			const splitAxis = node.splitAxis;
+
+			let nextUnusedPointer;
+			nextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );
+
+			uint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;
+			nextUnusedPointer = populateBuffer( nextUnusedPointer, right );
+
+			uint32Array[ stride4Offset + 7 ] = splitAxis;
+			return nextUnusedPointer;
+
+		}
+
+	}
+
+}

From b8992641d4e09b06a71becb3a19fd58282216a05 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 21:59:17 -0800
Subject: [PATCH 030/139] Remove tests reliant on packed data

---
 test/MeshBVH.test.js | 26 --------------------------
 1 file changed, 26 deletions(-)

diff --git a/test/MeshBVH.test.js b/test/MeshBVH.test.js
index ab03f2263..90828a218 100644
--- a/test/MeshBVH.test.js
+++ b/test/MeshBVH.test.js
@@ -289,32 +289,6 @@ describe( 'Options', () => {
 
 	} );
 
-	describe( 'packData', () => {
-
-		it( 'should be constructed to array buffers if packData is true', () => {
-
-			mesh.geometry.computeBoundsTree( { packData: true } );
-
-			const bvh = mesh.geometry.boundsTree;
-			expect( bvh._isPacked ).toBeTruthy();
-			expect( bvh._roots[ 0 ] instanceof ArrayBuffer ).toBeTruthy();
-			expect( getMaxDepth( bvh ) ).toBeGreaterThan( 0 );
-
-		} );
-
-		it( 'should be fully constructed as nodes if packData is false.', () => {
-
-			mesh.geometry.computeBoundsTree( { packData: false } );
-
-			const bvh = mesh.geometry.boundsTree;
-			expect( bvh._isPacked ).toBeFalsy();
-			expect( bvh._roots[ 0 ] instanceof ArrayBuffer ).toBeFalsy();
-			expect( getMaxDepth( bvh ) ).toBeGreaterThan( 0 );
-
-		} );
-
-	} );
-
 	describe( 'strategy', () => {
 
 		it.todo( 'should set the split strategy' );

From 050325000f2893808d1b69aafeaad21d80569ef6 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 22:00:54 -0800
Subject: [PATCH 031/139] Remove packData references from tests

---
 test/MeshBVH.test.js             |  6 +++---
 test/RandomRaycasts.test.js      | 21 +++------------------
 test/RandomRaycastsRepro.test.js |  6 +++---
 3 files changed, 9 insertions(+), 24 deletions(-)

diff --git a/test/MeshBVH.test.js b/test/MeshBVH.test.js
index 90828a218..f2f0b34c9 100644
--- a/test/MeshBVH.test.js
+++ b/test/MeshBVH.test.js
@@ -183,7 +183,7 @@ describe( 'Serialization', () => {
 	it( 'should serialize then deserialize to the same structure.', () => {
 
 		const geom = new SphereBufferGeometry( 1, 10, 10 );
-		const bvh = new MeshBVH( geom, { packData: true } );
+		const bvh = new MeshBVH( geom );
 		const serialized = MeshBVH.serialize( bvh, geom );
 
 		const deserializedBVH = MeshBVH.deserialize( serialized, geom );
@@ -194,7 +194,7 @@ describe( 'Serialization', () => {
 	it( 'should copy the index buffer from the target geometry unless copyIndex is set to false', () => {
 
 		const geom = new SphereBufferGeometry( 1, 10, 10 );
-		const bvh = new MeshBVH( geom, { packData: true } );
+		const bvh = new MeshBVH( geom );
 
 		expect( geom.index.array ).not.toBe( MeshBVH.serialize( bvh, geom ).index );
 		expect( geom.index.array ).toBe( MeshBVH.serialize( bvh, geom, false ).index );
@@ -205,7 +205,7 @@ describe( 'Serialization', () => {
 
 		const geom1 = new SphereBufferGeometry( 1, 10, 10 );
 		const geom2 = new SphereBufferGeometry( 1, 10, 10 );
-		const bvh = new MeshBVH( geom1, { packData: true } );
+		const bvh = new MeshBVH( geom1 );
 		const serialized = MeshBVH.serialize( bvh, geom1 );
 
 		expect( geom2.index.array ).not.toBe( serialized.index );
diff --git a/test/RandomRaycasts.test.js b/test/RandomRaycasts.test.js
index 48ff9fadc..6e48e49fb 100644
--- a/test/RandomRaycasts.test.js
+++ b/test/RandomRaycasts.test.js
@@ -114,23 +114,8 @@ function runRandomTests( options ) {
 
 }
 
-describe( 'Random CENTER intersections', () => {
+describe( 'Random CENTER intersections', () => runRandomTests( { strategy: CENTER } ) );
 
-	describe( 'split', () => runRandomTests( { strategy: CENTER, packData: false } ) );
-	describe( 'Packed split', () => runRandomTests( { strategy: CENTER, packData: true } ) );
+describe( 'Random AVERAGE intersections', () => runRandomTests( { strategy: AVERAGE } ) );
 
-} );
-
-describe( 'Random AVERAGE intersections', () => {
-
-	describe( 'split', () => runRandomTests( { strategy: AVERAGE, packData: false } ) );
-	describe( 'Packed split', () => runRandomTests( { strategy: AVERAGE, packData: true } ) );
-
-} );
-
-describe( 'Random SAH intersections', () => {
-
-	describe( 'split', () => runRandomTests( { strategy: SAH, packData: false } ) );
-	describe( 'Packed split', () => runRandomTests( { strategy: SAH, packData: true } ) );
-
-} );
+describe( 'Random SAH intersections', () => runRandomTests( { strategy: SAH } ) );
diff --git a/test/RandomRaycastsRepro.test.js b/test/RandomRaycastsRepro.test.js
index eb8854772..ff4eae822 100644
--- a/test/RandomRaycastsRepro.test.js
+++ b/test/RandomRaycastsRepro.test.js
@@ -109,6 +109,6 @@ function runRandomTest( options, transformSeed, raySeed ) {
 }
 
 
-runRandomTest( { strategy: AVERAGE, packData: true }, 7830035629, 4697211981 );
-runRandomTest( { strategy: AVERAGE, packData: true }, 8294928772, 1592666709 );
-runRandomTest( { strategy: SAH, packData: true }, 81992501, 8903271423 );
+runRandomTest( { strategy: AVERAGE }, 7830035629, 4697211981 );
+runRandomTest( { strategy: AVERAGE }, 8294928772, 1592666709 );
+runRandomTest( { strategy: SAH }, 81992501, 8903271423 );

From 3cb0689c926ea2db679a351780ad7a56549c2289 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Mon, 1 Mar 2021 22:26:22 -0800
Subject: [PATCH 032/139] Clean up cast functions

---
 src/castFunctionsBuffer.js | 94 +++++++++++++++++++++-----------------
 1 file changed, 52 insertions(+), 42 deletions(-)

diff --git a/src/castFunctionsBuffer.js b/src/castFunctionsBuffer.js
index e50195511..8bdb029a1 100644
--- a/src/castFunctionsBuffer.js
+++ b/src/castFunctionsBuffer.js
@@ -1,10 +1,3 @@
-
-/**************************************************************************************************
- *
- * This file is generated from castFunctions.js and scripts/generate-cast-function.mjs. Do not edit.
- *
- *************************************************************************************************/
-
 import { Box3, Vector3, Mesh, Matrix4 } from 'three';
 import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
 
@@ -16,27 +9,33 @@ import { CONTAINED } from './Constants.js';
 const boundingBox = new Box3();
 const boxIntersection = new Vector3();
 const xyzFields = [ 'x', 'y', 'z' ];
+const IS_LEAFNODE_FLAG = 0xFFFF;
 
 export function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects ) {
 
 	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
+	const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
 	if ( isLeaf ) {
 
-		intersectTris( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ], intersects );
+		const offset = uint32Array[ stride4Offset + 6 ];
+		const count = uint16Array[ stride2Offset + 14 ];
+
+		intersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );
 
 	} else {
 
-		if ( intersectRayBuffer( /* node left */ stride4Offset + 8, float32Array, ray, boxIntersection ) ) {
+		const leftIndex = stride4Offset + 8;
+		if ( intersectRayBuffer( leftIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycastBuffer( /* node left */ stride4Offset + 8, mesh, raycaster, ray, intersects );
+			raycastBuffer( leftIndex, mesh, raycaster, ray, intersects );
 
 		}
 
-		if ( intersectRayBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], float32Array, ray, boxIntersection ) ) {
+		const rightIndex = uint32Array[ stride4Offset + 6 ];
+		if ( intersectRayBuffer( rightIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycastBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], mesh, raycaster, ray, intersects );
+			raycastBuffer( rightIndex, mesh, raycaster, ray, intersects );
 
 		}
 
@@ -48,16 +47,18 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 
 	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
+	const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
 	if ( isLeaf ) {
 
-		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ] );
+		const offset = uint32Array[ stride4Offset + 6 ];
+		const count = uint16Array[ stride2Offset + 14 ];
+		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );
 
 	} else {
 
 		// consider the position of the split plane with respect to the oncoming ray; whichever direction
 		// the ray is coming from, look for an intersection among that side of the tree first
-		const splitAxis = /* node splitAxis */ uint32Array[ stride4Offset + 7 ];
+		const splitAxis = uint32Array[ stride4Offset + 7 ];
 		const xyzAxis = xyzFields[ splitAxis ];
 		const rayDir = ray.direction[ xyzAxis ];
 		const leftToRight = rayDir >= 0;
@@ -66,13 +67,13 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 		let c1, c2;
 		if ( leftToRight ) {
 
-			c1 = /* node left */ stride4Offset + 8;
-			c2 = /* node right */ uint32Array[ stride4Offset + 6 ];
+			c1 = stride4Offset + 8; // left index
+			c2 = uint32Array[ stride4Offset + 6 ]; // right index
 
 		} else {
 
-			c1 = /* node right */ uint32Array[ stride4Offset + 6 ];
-			c2 = /* node left */ stride4Offset + 8;
+			c1 = uint32Array[ stride4Offset + 6 ]; // left index
+			c2 = stride4Offset + 8; // right index
 
 		}
 
@@ -86,8 +87,8 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 			// check if the point is within the second bounds
 			const point = c1Result.point[ xyzAxis ];
 			const isOutside = leftToRight ?
-				point <= /* c2 boundingData */ float32Array[ c2 + splitAxis ] :
-				point >= /* c2 boundingData */ float32Array[ c2 + splitAxis + 3 ];
+				point <= float32Array[ c2 + splitAxis ] : // min bounding data
+				point >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data
 
 			if ( isOutside ) {
 
@@ -166,46 +167,54 @@ export const shapecastBuffer = ( function () {
 		// when converting to the buffer equivalents
 		function getLeftOffsetBuffer( stride4Offset ) {
 
-			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-			while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
+			// traverse until we find a leaf
+			while ( uint16Array[ stride2Offset + 15 ] !== IS_LEAFNODE_FLAG ) {
 
-				/* node */ stride4Offset = /* node left */ stride4Offset + 8, stride2Offset = stride4Offset * 2;
+				// adjust offset to point to the left node
+				stride4Offset = stride4Offset + 8;
+				stride2Offset = stride4Offset * 2;
 
 			}
 
-			return /* node offset */ uint32Array[ stride4Offset + 6 ];
+			return uint32Array[ stride4Offset + 6 ]; // triangle offset
 
 		}
 
 		function getRightEndOffsetBuffer( stride4Offset ) {
 
-			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-			while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
+			// traverse until we find a leaf
+			while ( uint16Array[ stride2Offset + 15 ] !== IS_LEAFNODE_FLAG ) {
 
-				/* node */ stride4Offset = /* node right */ uint32Array[ stride4Offset + 6 ], stride2Offset = stride4Offset * 2;
+				// adjust offset to point to the right node
+				stride4Offset = uint32Array[ stride4Offset + 6 ];
+				stride2Offset = stride4Offset * 2;
 
 			}
 
-			return /* node offset */ uint32Array[ stride4Offset + 6 ] + /* node count */ uint16Array[ stride2Offset + 14 ];
+			// offset + count
+			// return the end offset of the triangle range
+			return uint32Array[ stride4Offset + 6 ] + uint16Array[ stride2Offset + 14 ];
 
 		}
 
 		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
+		const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
 		if ( isLeaf && intersectsTriangleFunc ) {
 
 			const geometry = mesh.geometry;
-			const offset = /* node offset */ uint32Array[ stride4Offset + 6 ];
-			const count = /* node count */ uint16Array[ stride2Offset + 14 ];
+			const offset = uint32Array[ stride4Offset + 6 ];
+			const count = uint16Array[ stride2Offset + 14 ];
 			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
 
 		} else {
 
-			const left = /* node left */ stride4Offset + 8;
-			const right = /* node right */ uint32Array[ stride4Offset + 6 ];
+			const left = stride4Offset + 8;
+			const right = uint32Array[ stride4Offset + 6 ];
 			let c1 = left;
 			let c2 = right;
 
@@ -216,6 +225,7 @@ export const shapecastBuffer = ( function () {
 				box1 = cachedBox1;
 				box2 = cachedBox2;
 
+				// bounding data is not offset
 				arrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );
 				arrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );
 
@@ -246,7 +256,7 @@ export const shapecastBuffer = ( function () {
 
 			}
 
-			const isC1Leaf = ! /* c1 count */ ( uint16Array[ c1 + 15 ] !== 0xffff );
+			const isC1Leaf = uint16Array[ c1 + 15 ] === IS_LEAFNODE_FLAG;
 			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
 
 			let c1StopTraversal;
@@ -284,7 +294,7 @@ export const shapecastBuffer = ( function () {
 			box2 = cachedBox2;
 			arrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );
 
-			const isC2Leaf = ! /* c2 count */ ( uint16Array[ c2 + 15 ] !== 0xffff );
+			const isC2Leaf = uint16Array[ c2 + 15 ] == IS_LEAFNODE_FLAG;
 			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
 
 			let c2StopTraversal;
@@ -353,7 +363,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 		}
 
-		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
+		const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
 		if ( isLeaf ) {
 
 			const thisGeometry = mesh.geometry;
@@ -363,8 +373,8 @@ export const intersectsGeometryBuffer = ( function () {
 			const index = geometry.index;
 			const pos = geometry.attributes.position;
 
-			const offset = /* node offset */ uint32Array[ stride4Offset + 6 ];
-			const count = /* node count */ uint16Array[ stride2Offset + 14 ];
+			const offset = uint32Array[ stride4Offset + 6 ];
+			const count = uint16Array[ stride2Offset + 14 ];
 
 			// get the inverse of the geometry matrix so we can transform our triangles into the
 			// geometry space we're trying to test. We assume there are fewer triangles being checked
@@ -435,8 +445,8 @@ export const intersectsGeometryBuffer = ( function () {
 
 		} else {
 
-			const left = /* node left */ stride4Offset + 8;
-			const right = /* node right */ uint32Array[ stride4Offset + 6 ];
+			const left = stride4Offset + 8;
+			const right = uint32Array[ stride4Offset + 6 ];
 
 			arrayToBoxBuffer( /* left boundingData */ left, float32Array, boundingBox );
 			const leftIntersection =

From a138d6af3e37e3eaae26ad5ff77b9c0e20a4d510 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 3 Mar 2021 23:34:20 -0800
Subject: [PATCH 033/139] Add cast function generation

---
 package.json                                  |   7 +-
 scripts/generate-cast-functions.js            |  29 +
 src/MeshBVH.js                                |   2 +-
 ...astFunctionsBuffer.js => castFunctions.js} |  46 +-
 src/castFunctions.template.js                 | 525 ++++++++++++++++++
 5 files changed, 582 insertions(+), 27 deletions(-)
 create mode 100644 scripts/generate-cast-functions.js
 rename src/{castFunctionsBuffer.js => castFunctions.js} (89%)
 create mode 100644 src/castFunctions.template.js

diff --git a/package.json b/package.json
index 841a2f369..df601042a 100644
--- a/package.json
+++ b/package.json
@@ -6,9 +6,10 @@
   "main": "src/index.js",
   "type": "module",
   "scripts": {
-    "start": "concurrently \"parcel watch ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache\" \"rollup -w -c\" \"static-server\"",
-    "build": "rollup -c & parcel build ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache --no-source-maps --no-content-hash",
-    "test": "jest",
+    "generate-cast-functions": "node scripts/generate-cast-functions.js",
+    "start": "npm run generate-cast-functions & concurrently \"parcel watch ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache\" \"rollup -w -c\" \"static-server\"",
+    "build": "npm run generate-cast-functions & rollup -c & parcel build ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache --no-source-maps --no-content-hash",
+    "test": "npm run generate-cast-functions & jest",
     "lint": "eslint \"./src/*.js\" \"./test/*.js\" \"./example/*.js\"",
     "benchmark": "node benchmark/run-benchmark.js"
   },
diff --git a/scripts/generate-cast-functions.js b/scripts/generate-cast-functions.js
new file mode 100644
index 000000000..b001bf916
--- /dev/null
+++ b/scripts/generate-cast-functions.js
@@ -0,0 +1,29 @@
+import path from 'path';
+import fs from 'fs';
+import { fileURLToPath } from 'url';
+
+const __dirname = path.dirname( fileURLToPath( import.meta.url ) );
+const inputPath = path.resolve( __dirname, '../src/castFunctions.template.js' );
+const outputPath = path.resolve( __dirname, '../src/castFunctions.js' );
+let contents = fs.readFileSync( inputPath, { encoding: 'utf8' } );
+
+contents = replaceFunctionMacro( contents, 'IS_LEAF', 'uint16Array[	$1 + 15 ] === 0xFFFF' );
+contents = replaceFunctionMacro( contents, 'OFFSET', 'uint32Array[ $1 + 6 ]' );
+contents = replaceFunctionMacro( contents, 'COUNT', 'uint16Array[ $1 + 14 ]' );
+contents = replaceFunctionMacro( contents, 'LEFT_NODE', '$1 + 8' );
+contents = replaceFunctionMacro( contents, 'RIGHT_NODE', 'uint32Array[ $1 + 6 ]' );
+contents = replaceFunctionMacro( contents, 'SPLIT_AXIS', 'uint32Array[ $1 + 7 ]' );
+contents = replaceFunctionMacro( contents, 'BOUNDING_DATA_INDEX', '$1' );
+
+fs.writeFileSync( outputPath, contents );
+
+function replaceFunctionMacro( contents, name, body ) {
+
+	const regexp = new RegExp( `${ name }\\((.*?)\\)`, 'g' );
+	return contents.replace( regexp, ( match, arg ) => {
+
+		return body.replace( /\$1/g, arg.trim() );
+
+	} );
+
+}
diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index d3831a003..46020f5e7 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -11,7 +11,7 @@ import {
 	intersectsGeometryBuffer,
 	setBuffer,
 	clearBuffer,
-} from './castFunctionsBuffer.js';
+} from './castFunctions.js';
 
 const SKIP_GENERATION = Symbol( 'skip tree generation' );
 
diff --git a/src/castFunctionsBuffer.js b/src/castFunctions.js
similarity index 89%
rename from src/castFunctionsBuffer.js
rename to src/castFunctions.js
index 8bdb029a1..c8f2cccba 100644
--- a/src/castFunctionsBuffer.js
+++ b/src/castFunctions.js
@@ -1,3 +1,6 @@
+/* global
+	IS_LEAF, OFFSET, COUNT, RIGHT_NODE, LEFT_NODE, BOUNDING_DATA_INDEX,
+*/
 import { Box3, Vector3, Mesh, Matrix4 } from 'three';
 import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
 
@@ -9,13 +12,12 @@ import { CONTAINED } from './Constants.js';
 const boundingBox = new Box3();
 const boxIntersection = new Vector3();
 const xyzFields = [ 'x', 'y', 'z' ];
-const IS_LEAFNODE_FLAG = 0xFFFF;
 
 export function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects ) {
 
 	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
+	const isLeaf = uint16Array[	stride2Offset + 15 ] === 0xFFFF;
 	if ( isLeaf ) {
 
 		const offset = uint32Array[ stride4Offset + 6 ];
@@ -47,7 +49,7 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 
 	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
+	const isLeaf = uint16Array[	stride2Offset + 15 ] === 0xFFFF;
 	if ( isLeaf ) {
 
 		const offset = uint32Array[ stride4Offset + 6 ];
@@ -67,13 +69,13 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 		let c1, c2;
 		if ( leftToRight ) {
 
-			c1 = stride4Offset + 8; // left index
-			c2 = uint32Array[ stride4Offset + 6 ]; // right index
+			c1 = stride4Offset + 8;
+			c2 = uint32Array[ stride4Offset + 6 ];
 
 		} else {
 
-			c1 = uint32Array[ stride4Offset + 6 ]; // left index
-			c2 = stride4Offset + 8; // right index
+			c1 = uint32Array[ stride4Offset + 6 ];
+			c2 = stride4Offset + 8;
 
 		}
 
@@ -170,15 +172,14 @@ export const shapecastBuffer = ( function () {
 			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			// traverse until we find a leaf
-			while ( uint16Array[ stride2Offset + 15 ] !== IS_LEAFNODE_FLAG ) {
+			while ( ! uint16Array[	stride2Offset + 15 ] === 0xFFFF ) {
 
-				// adjust offset to point to the left node
 				stride4Offset = stride4Offset + 8;
 				stride2Offset = stride4Offset * 2;
 
 			}
 
-			return uint32Array[ stride4Offset + 6 ]; // triangle offset
+			return uint32Array[ stride4Offset + 6 ];
 
 		}
 
@@ -187,7 +188,7 @@ export const shapecastBuffer = ( function () {
 			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			// traverse until we find a leaf
-			while ( uint16Array[ stride2Offset + 15 ] !== IS_LEAFNODE_FLAG ) {
+			while ( uint16Array[	stride2Offset + 15 ] === 0xFFFF ) {
 
 				// adjust offset to point to the right node
 				stride4Offset = uint32Array[ stride4Offset + 6 ];
@@ -195,7 +196,6 @@ export const shapecastBuffer = ( function () {
 
 			}
 
-			// offset + count
 			// return the end offset of the triangle range
 			return uint32Array[ stride4Offset + 6 ] + uint16Array[ stride2Offset + 14 ];
 
@@ -203,7 +203,7 @@ export const shapecastBuffer = ( function () {
 
 		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-		const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
+		const isLeaf = uint16Array[	stride2Offset + 15 ] === 0xFFFF;
 		if ( isLeaf && intersectsTriangleFunc ) {
 
 			const geometry = mesh.geometry;
@@ -226,8 +226,8 @@ export const shapecastBuffer = ( function () {
 				box2 = cachedBox2;
 
 				// bounding data is not offset
-				arrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );
-				arrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );
+				arrayToBoxBuffer( c1, float32Array, box1 );
+				arrayToBoxBuffer( c2, float32Array, box2 );
 
 				score1 = nodeScoreFunc( box1 );
 				score2 = nodeScoreFunc( box2 );
@@ -252,11 +252,11 @@ export const shapecastBuffer = ( function () {
 			if ( ! box1 ) {
 
 				box1 = cachedBox1;
-				arrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );
+				arrayToBoxBuffer( c1, float32Array, box1 );
 
 			}
 
-			const isC1Leaf = uint16Array[ c1 + 15 ] === IS_LEAFNODE_FLAG;
+			const isC1Leaf = uint16Array[	c1 + 15 ] === 0xFFFF;
 			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
 
 			let c1StopTraversal;
@@ -292,9 +292,9 @@ export const shapecastBuffer = ( function () {
 			// Check box 2 intersection
 			// cached box2 will have been overwritten by previous traversal
 			box2 = cachedBox2;
-			arrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );
+			arrayToBoxBuffer( c2, float32Array, box2 );
 
-			const isC2Leaf = uint16Array[ c2 + 15 ] == IS_LEAFNODE_FLAG;
+			const isC2Leaf = uint16Array[	c2 + 15 ] === 0xFFFF;
 			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
 
 			let c2StopTraversal;
@@ -363,7 +363,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 		}
 
-		const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
+		const isLeaf = uint16Array[	stride2Offset + 15 ] === 0xFFFF;
 		if ( isLeaf ) {
 
 			const thisGeometry = mesh.geometry;
@@ -383,7 +383,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 			if ( geometry.boundsTree ) {
 
-				arrayToBoxBuffer( /* node boundingData */ stride4Offset, float32Array, obb2 );
+				arrayToBoxBuffer( stride4Offset, float32Array, obb2 );
 				obb2.matrix.copy( invertedMat );
 				obb2.update();
 
@@ -448,14 +448,14 @@ export const intersectsGeometryBuffer = ( function () {
 			const left = stride4Offset + 8;
 			const right = uint32Array[ stride4Offset + 6 ];
 
-			arrayToBoxBuffer( /* left boundingData */ left, float32Array, boundingBox );
+			arrayToBoxBuffer( left, float32Array, boundingBox );
 			const leftIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
 				intersectsGeometryBuffer( left, mesh, geometry, geometryToBvh, cachedObb );
 
 			if ( leftIntersection ) return true;
 
-			arrayToBoxBuffer( /* right boundingData */ right, float32Array, boundingBox );
+			arrayToBoxBuffer( right, float32Array, boundingBox );
 			const rightIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
 				intersectsGeometryBuffer( right, mesh, geometry, geometryToBvh, cachedObb );
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
new file mode 100644
index 000000000..3a41fbdb9
--- /dev/null
+++ b/src/castFunctions.template.js
@@ -0,0 +1,525 @@
+/* global
+	IS_LEAF, OFFSET, COUNT, RIGHT_NODE, LEFT_NODE, BOUNDING_DATA_INDEX,
+*/
+import { Box3, Vector3, Mesh, Matrix4 } from 'three';
+import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
+
+import { OrientedBox } from './Utils/OrientedBox.js';
+import { setTriangle } from './Utils/TriangleUtils.js';
+import { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';
+import { CONTAINED } from './Constants.js';
+
+const boundingBox = new Box3();
+const boxIntersection = new Vector3();
+const xyzFields = [ 'x', 'y', 'z' ];
+
+export function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects ) {
+
+	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+	const isLeaf = IS_LEAF( stride2Offset );
+	if ( isLeaf ) {
+
+		const offset = OFFSET( stride4Offset );
+		const count = COUNT( stride2Offset );
+
+		intersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );
+
+	} else {
+
+		const leftIndex = LEFT_NODE( stride4Offset );
+		if ( intersectRayBuffer( leftIndex, float32Array, ray, boxIntersection ) ) {
+
+			raycastBuffer( leftIndex, mesh, raycaster, ray, intersects );
+
+		}
+
+		const rightIndex = RIGHT_NODE( stride4Offset );
+		if ( intersectRayBuffer( rightIndex, float32Array, ray, boxIntersection ) ) {
+
+			raycastBuffer( rightIndex, mesh, raycaster, ray, intersects );
+
+		}
+
+	}
+
+}
+
+export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
+
+	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+	const isLeaf = IS_LEAF( stride2Offset );
+	if ( isLeaf ) {
+
+		const offset = OFFSET( stride4Offset );
+		const count = COUNT( stride2Offset );
+		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );
+
+	} else {
+
+		// consider the position of the split plane with respect to the oncoming ray; whichever direction
+		// the ray is coming from, look for an intersection among that side of the tree first
+		const splitAxis = SPLIT_AXIS( stride4Offset );
+		const xyzAxis = xyzFields[ splitAxis ];
+		const rayDir = ray.direction[ xyzAxis ];
+		const leftToRight = rayDir >= 0;
+
+		// c1 is the child to check first
+		let c1, c2;
+		if ( leftToRight ) {
+
+			c1 = LEFT_NODE( stride4Offset );
+			c2 = RIGHT_NODE( stride4Offset );
+
+		} else {
+
+			c1 = RIGHT_NODE( stride4Offset );
+			c2 = LEFT_NODE( stride4Offset );
+
+		}
+
+		const c1Intersection = intersectRayBuffer( c1, float32Array, ray, boxIntersection );
+		const c1Result = c1Intersection ? raycastFirstBuffer( c1, mesh, raycaster, ray ) : null;
+
+		// if we got an intersection in the first node and it's closer than the second node's bounding
+		// box, we don't need to consider the second node because it couldn't possibly be a better result
+		if ( c1Result ) {
+
+			// check if the point is within the second bounds
+			const point = c1Result.point[ xyzAxis ];
+			const isOutside = leftToRight ?
+				point <= float32Array[ c2 + splitAxis ] : // min bounding data
+				point >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data
+
+			if ( isOutside ) {
+
+				return c1Result;
+
+			}
+
+		}
+
+		// either there was no intersection in the first node, or there could still be a closer
+		// intersection in the second, so check the second node and then take the better of the two
+		const c2Intersection = intersectRayBuffer( c2, float32Array, ray, boxIntersection );
+		const c2Result = c2Intersection ? raycastFirstBuffer( c2, mesh, raycaster, ray ) : null;
+
+		if ( c1Result && c2Result ) {
+
+			return c1Result.distance <= c2Result.distance ? c1Result : c2Result;
+
+		} else {
+
+			return c1Result || c2Result || null;
+
+		}
+
+	}
+
+}
+
+export const shapecastBuffer = ( function () {
+
+	const _triangle = new SeparatingAxisTriangle();
+	const _cachedBox1 = new Box3();
+	const _cachedBox2 = new Box3();
+
+	function iterateOverTriangles(
+		offset,
+		count,
+		geometry,
+		intersectsTriangleFunc,
+		contained,
+		depth,
+		triangle
+	) {
+
+		const index = geometry.index;
+		const pos = geometry.attributes.position;
+		for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+
+			setTriangle( triangle, i, index, pos );
+			triangle.needsUpdate = true;
+
+			if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
+
+				return true;
+
+			}
+
+		}
+
+		return false;
+
+	}
+
+	return function shapecastBuffer( stride4Offset,
+		mesh,
+		intersectsBoundsFunc,
+		intersectsTriangleFunc = null,
+		nodeScoreFunc = null,
+		depth = 0,
+		triangle = _triangle,
+		cachedBox1 = _cachedBox1,
+		cachedBox2 = _cachedBox2
+	) {
+
+		// Define these inside the function so it has access to the local variables needed
+		// when converting to the buffer equivalents
+		function getLeftOffsetBuffer( stride4Offset ) {
+
+			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+			// traverse until we find a leaf
+			while ( ! IS_LEAF( stride2Offset ) ) {
+
+				stride4Offset = LEFT_NODE( stride4Offset );
+				stride2Offset = stride4Offset * 2;
+
+			}
+
+			return OFFSET( stride4Offset );
+
+		}
+
+		function getRightEndOffsetBuffer( stride4Offset ) {
+
+			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+			// traverse until we find a leaf
+			while ( IS_LEAF( stride2Offset ) ) {
+
+				// adjust offset to point to the right node
+				stride4Offset = RIGHT_NODE( stride4Offset );
+				stride2Offset = stride4Offset * 2;
+
+			}
+
+			// return the end offset of the triangle range
+			return OFFSET( stride4Offset ) + COUNT( stride2Offset );
+
+		}
+
+		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+		const isLeaf = IS_LEAF( stride2Offset );
+		if ( isLeaf && intersectsTriangleFunc ) {
+
+			const geometry = mesh.geometry;
+			const offset = OFFSET( stride4Offset );
+			const count = COUNT( stride2Offset );
+			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
+
+		} else {
+
+			const left = LEFT_NODE( stride4Offset );
+			const right = RIGHT_NODE( stride4Offset );
+			let c1 = left;
+			let c2 = right;
+
+			let score1, score2;
+			let box1, box2;
+			if ( nodeScoreFunc ) {
+
+				box1 = cachedBox1;
+				box2 = cachedBox2;
+
+				// bounding data is not offset
+				arrayToBoxBuffer( BOUNDING_DATA_INDEX( c1 ), float32Array, box1 );
+				arrayToBoxBuffer( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
+
+				score1 = nodeScoreFunc( box1 );
+				score2 = nodeScoreFunc( box2 );
+
+				if ( score2 < score1 ) {
+
+					c1 = right;
+					c2 = left;
+
+					const temp = score1;
+					score1 = score2;
+					score2 = temp;
+
+					box1 = box2;
+					// box2 is always set before use below
+
+				}
+
+			}
+
+			// Check box 1 intersection
+			if ( ! box1 ) {
+
+				box1 = cachedBox1;
+				arrayToBoxBuffer( BOUNDING_DATA_INDEX( c1 ), float32Array, box1 );
+
+			}
+
+			const isC1Leaf = IS_LEAF( c1 );
+			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
+
+			let c1StopTraversal;
+			if ( c1Intersection === CONTAINED ) {
+
+				const geometry = mesh.geometry;
+				const offset = getLeftOffsetBuffer( c1 );
+				const end = getRightEndOffsetBuffer( c1 );
+				const count = end - offset;
+
+				c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+
+			} else {
+
+				c1StopTraversal =
+					c1Intersection &&
+					shapecastBuffer(
+						c1,
+						mesh,
+						intersectsBoundsFunc,
+						intersectsTriangleFunc,
+						nodeScoreFunc,
+						depth + 1,
+						triangle,
+						cachedBox1,
+						cachedBox2
+					);
+
+			}
+
+			if ( c1StopTraversal ) return true;
+
+			// Check box 2 intersection
+			// cached box2 will have been overwritten by previous traversal
+			box2 = cachedBox2;
+			arrayToBoxBuffer( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
+
+			const isC2Leaf = IS_LEAF( c2 );
+			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
+
+			let c2StopTraversal;
+			if ( c2Intersection === CONTAINED ) {
+
+				const geometry = mesh.geometry;
+				const offset = getLeftOffsetBuffer( c2 );
+				const end = getRightEndOffsetBuffer( c2 );
+				const count = end - offset;
+
+				c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+
+			} else {
+
+				c2StopTraversal =
+					c2Intersection &&
+					shapecastBuffer(
+						c2,
+						mesh,
+						intersectsBoundsFunc,
+						intersectsTriangleFunc,
+						nodeScoreFunc,
+						depth + 1,
+						triangle,
+						cachedBox1,
+						cachedBox2
+					);
+
+			}
+
+			if ( c2StopTraversal ) return true;
+
+			return false;
+
+		}
+
+	};
+
+} )();
+
+export const intersectsGeometryBuffer = ( function () {
+
+	const triangle = new SeparatingAxisTriangle();
+	const triangle2 = new SeparatingAxisTriangle();
+	const cachedMesh = new Mesh();
+	const invertedMat = new Matrix4();
+
+	const obb = new OrientedBox();
+	const obb2 = new OrientedBox();
+
+	return function intersectsGeometryBuffer( stride4Offset, mesh, geometry, geometryToBvh, cachedObb = null ) {
+
+		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+		if ( cachedObb === null ) {
+
+			if ( ! geometry.boundingBox ) {
+
+				geometry.computeBoundingBox();
+
+			}
+
+			obb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );
+			obb.update();
+			cachedObb = obb;
+
+		}
+
+		const isLeaf = IS_LEAF( stride2Offset );
+		if ( isLeaf ) {
+
+			const thisGeometry = mesh.geometry;
+			const thisIndex = thisGeometry.index;
+			const thisPos = thisGeometry.attributes.position;
+
+			const index = geometry.index;
+			const pos = geometry.attributes.position;
+
+			const offset = OFFSET( stride4Offset );
+			const count = COUNT( stride2Offset );
+
+			// get the inverse of the geometry matrix so we can transform our triangles into the
+			// geometry space we're trying to test. We assume there are fewer triangles being checked
+			// here.
+			invertedMat.copy( geometryToBvh ).invert();
+
+			if ( geometry.boundsTree ) {
+
+				arrayToBoxBuffer( BOUNDING_DATA_INDEX( stride4Offset ), float32Array, obb2 );
+				obb2.matrix.copy( invertedMat );
+				obb2.update();
+
+				cachedMesh.geometry = geometry;
+				const res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
+
+					tri.a.applyMatrix4( geometryToBvh );
+					tri.b.applyMatrix4( geometryToBvh );
+					tri.c.applyMatrix4( geometryToBvh );
+					tri.update();
+
+					for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+
+						// this triangle needs to be transformed into the current BVH coordinate frame
+						setTriangle( triangle2, i, thisIndex, thisPos );
+						triangle2.update();
+						if ( tri.intersectsTriangle( triangle2 ) ) {
+
+							return true;
+
+						}
+
+					}
+
+					return false;
+
+				} );
+				cachedMesh.geometry = null;
+
+				return res;
+
+			} else {
+
+				for ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {
+
+					// this triangle needs to be transformed into the current BVH coordinate frame
+					setTriangle( triangle, i, thisIndex, thisPos );
+					triangle.a.applyMatrix4( invertedMat );
+					triangle.b.applyMatrix4( invertedMat );
+					triangle.c.applyMatrix4( invertedMat );
+					triangle.update();
+
+					for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
+
+						setTriangle( triangle2, i2, index, pos );
+						triangle2.update();
+
+						if ( triangle.intersectsTriangle( triangle2 ) ) {
+
+							return true;
+
+						}
+
+					}
+
+				}
+
+			}
+
+		} else {
+
+			const left = stride4Offset + 8;
+			const right = uint32Array[ stride4Offset + 6 ];
+
+			arrayToBoxBuffer( BOUNDING_DATA_INDEX( left ), float32Array, boundingBox );
+			const leftIntersection =
+				cachedObb.intersectsBox( boundingBox ) &&
+				intersectsGeometryBuffer( left, mesh, geometry, geometryToBvh, cachedObb );
+
+			if ( leftIntersection ) return true;
+
+			arrayToBoxBuffer( BOUNDING_DATA_INDEX( right ), float32Array, boundingBox );
+			const rightIntersection =
+				cachedObb.intersectsBox( boundingBox ) &&
+				intersectsGeometryBuffer( right, mesh, geometry, geometryToBvh, cachedObb );
+
+			if ( rightIntersection ) return true;
+
+			return false;
+
+		}
+
+	};
+
+} )();
+
+function intersectRayBuffer( stride4Offset, array, ray, target ) {
+
+	arrayToBoxBuffer( stride4Offset, array, boundingBox );
+	return ray.intersectBox( boundingBox, target );
+
+}
+
+const bufferStack = [];
+let _prevBuffer;
+let _float32Array;
+let _uint16Array;
+let _uint32Array;
+export function setBuffer( buffer ) {
+
+	if ( _prevBuffer ) {
+
+		bufferStack.push( _prevBuffer );
+
+	}
+
+	_prevBuffer = buffer;
+	_float32Array = new Float32Array( buffer );
+	_uint16Array = new Uint16Array( buffer );
+	_uint32Array = new Uint32Array( buffer );
+
+}
+
+export function clearBuffer() {
+
+	_prevBuffer = null;
+	_float32Array = null;
+	_uint16Array = null;
+	_uint32Array = null;
+
+	if ( bufferStack.length ) {
+
+		setBuffer( bufferStack.pop() );
+
+	}
+
+}
+
+function arrayToBoxBuffer( stride4Offset, array, target ) {
+
+	target.min.x = array[ stride4Offset ];
+	target.min.y = array[ stride4Offset + 1 ];
+	target.min.z = array[ stride4Offset + 2 ];
+
+	target.max.x = array[ stride4Offset + 3 ];
+	target.max.y = array[ stride4Offset + 4 ];
+	target.max.z = array[ stride4Offset + 5 ];
+
+}

From 9bd40feccdc37db1cb7364a8be8ebc7d8c30b961 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 3 Mar 2021 23:35:14 -0800
Subject: [PATCH 034/139] lint fix

---
 scripts/generate-cast-functions.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/generate-cast-functions.js b/scripts/generate-cast-functions.js
index b001bf916..0e59b35ff 100644
--- a/scripts/generate-cast-functions.js
+++ b/scripts/generate-cast-functions.js
@@ -1,3 +1,4 @@
+/* eslint-disable */
 import path from 'path';
 import fs from 'fs';
 import { fileURLToPath } from 'url';

From d6267cdf8ce7668070053d33cc120430a35e0d79 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 3 Mar 2021 23:46:57 -0800
Subject: [PATCH 035/139] Fix tests

---
 scripts/generate-cast-functions.js |  2 +-
 src/castFunctions.js               | 16 ++++++++--------
 src/castFunctions.template.js      |  2 +-
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/scripts/generate-cast-functions.js b/scripts/generate-cast-functions.js
index 0e59b35ff..5b94af12f 100644
--- a/scripts/generate-cast-functions.js
+++ b/scripts/generate-cast-functions.js
@@ -8,7 +8,7 @@ const inputPath = path.resolve( __dirname, '../src/castFunctions.template.js' );
 const outputPath = path.resolve( __dirname, '../src/castFunctions.js' );
 let contents = fs.readFileSync( inputPath, { encoding: 'utf8' } );
 
-contents = replaceFunctionMacro( contents, 'IS_LEAF', 'uint16Array[	$1 + 15 ] === 0xFFFF' );
+contents = replaceFunctionMacro( contents, 'IS_LEAF', '( uint16Array[ $1 + 15 ] === 0xFFFF )' );
 contents = replaceFunctionMacro( contents, 'OFFSET', 'uint32Array[ $1 + 6 ]' );
 contents = replaceFunctionMacro( contents, 'COUNT', 'uint16Array[ $1 + 14 ]' );
 contents = replaceFunctionMacro( contents, 'LEFT_NODE', '$1 + 8' );
diff --git a/src/castFunctions.js b/src/castFunctions.js
index c8f2cccba..cdddd9523 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -17,7 +17,7 @@ export function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects )
 
 	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = uint16Array[	stride2Offset + 15 ] === 0xFFFF;
+	const isLeaf = ( uint16Array[ stride2Offset + 15 ] === 0xFFFF );
 	if ( isLeaf ) {
 
 		const offset = uint32Array[ stride4Offset + 6 ];
@@ -49,7 +49,7 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 
 	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = uint16Array[	stride2Offset + 15 ] === 0xFFFF;
+	const isLeaf = ( uint16Array[ stride2Offset + 15 ] === 0xFFFF );
 	if ( isLeaf ) {
 
 		const offset = uint32Array[ stride4Offset + 6 ];
@@ -172,7 +172,7 @@ export const shapecastBuffer = ( function () {
 			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			// traverse until we find a leaf
-			while ( ! uint16Array[	stride2Offset + 15 ] === 0xFFFF ) {
+			while ( ! ( uint16Array[ stride2Offset + 15 ] === 0xFFFF ) ) {
 
 				stride4Offset = stride4Offset + 8;
 				stride2Offset = stride4Offset * 2;
@@ -188,7 +188,7 @@ export const shapecastBuffer = ( function () {
 			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			// traverse until we find a leaf
-			while ( uint16Array[	stride2Offset + 15 ] === 0xFFFF ) {
+			while ( ! ( uint16Array[ stride2Offset + 15 ] === 0xFFFF ) ) {
 
 				// adjust offset to point to the right node
 				stride4Offset = uint32Array[ stride4Offset + 6 ];
@@ -203,7 +203,7 @@ export const shapecastBuffer = ( function () {
 
 		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-		const isLeaf = uint16Array[	stride2Offset + 15 ] === 0xFFFF;
+		const isLeaf = ( uint16Array[ stride2Offset + 15 ] === 0xFFFF );
 		if ( isLeaf && intersectsTriangleFunc ) {
 
 			const geometry = mesh.geometry;
@@ -256,7 +256,7 @@ export const shapecastBuffer = ( function () {
 
 			}
 
-			const isC1Leaf = uint16Array[	c1 + 15 ] === 0xFFFF;
+			const isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );
 			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
 
 			let c1StopTraversal;
@@ -294,7 +294,7 @@ export const shapecastBuffer = ( function () {
 			box2 = cachedBox2;
 			arrayToBoxBuffer( c2, float32Array, box2 );
 
-			const isC2Leaf = uint16Array[	c2 + 15 ] === 0xFFFF;
+			const isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );
 			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
 
 			let c2StopTraversal;
@@ -363,7 +363,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 		}
 
-		const isLeaf = uint16Array[	stride2Offset + 15 ] === 0xFFFF;
+		const isLeaf = ( uint16Array[ stride2Offset + 15 ] === 0xFFFF );
 		if ( isLeaf ) {
 
 			const thisGeometry = mesh.geometry;
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index 3a41fbdb9..1a0efa970 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -188,7 +188,7 @@ export const shapecastBuffer = ( function () {
 			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			// traverse until we find a leaf
-			while ( IS_LEAF( stride2Offset ) ) {
+			while ( ! IS_LEAF( stride2Offset ) ) {
 
 				// adjust offset to point to the right node
 				stride4Offset = RIGHT_NODE( stride4Offset );

From 016c4f5796029ff9059586f0bf2fb5a06f26c3c3 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 3 Mar 2021 23:53:47 -0800
Subject: [PATCH 036/139] strideOffset -> nodeIndex

---
 src/castFunctions.template.js | 106 +++++++++++++++++-----------------
 1 file changed, 53 insertions(+), 53 deletions(-)

diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index 1a0efa970..b1b5bbe16 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -13,28 +13,28 @@ const boundingBox = new Box3();
 const boxIntersection = new Vector3();
 const xyzFields = [ 'x', 'y', 'z' ];
 
-export function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects ) {
+export function raycastBuffer( nodeIndex32, mesh, raycaster, ray, intersects ) {
 
-	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = IS_LEAF( stride2Offset );
+	const isLeaf = IS_LEAF( nodeIndex16 );
 	if ( isLeaf ) {
 
-		const offset = OFFSET( stride4Offset );
-		const count = COUNT( stride2Offset );
+		const offset = OFFSET( nodeIndex32 );
+		const count = COUNT( nodeIndex16 );
 
 		intersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );
 
 	} else {
 
-		const leftIndex = LEFT_NODE( stride4Offset );
+		const leftIndex = LEFT_NODE( nodeIndex32 );
 		if ( intersectRayBuffer( leftIndex, float32Array, ray, boxIntersection ) ) {
 
 			raycastBuffer( leftIndex, mesh, raycaster, ray, intersects );
 
 		}
 
-		const rightIndex = RIGHT_NODE( stride4Offset );
+		const rightIndex = RIGHT_NODE( nodeIndex32 );
 		if ( intersectRayBuffer( rightIndex, float32Array, ray, boxIntersection ) ) {
 
 			raycastBuffer( rightIndex, mesh, raycaster, ray, intersects );
@@ -45,22 +45,22 @@ export function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects )
 
 }
 
-export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
+export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
 
-	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = IS_LEAF( stride2Offset );
+	const isLeaf = IS_LEAF( nodeIndex16 );
 	if ( isLeaf ) {
 
-		const offset = OFFSET( stride4Offset );
-		const count = COUNT( stride2Offset );
+		const offset = OFFSET( nodeIndex32 );
+		const count = COUNT( nodeIndex16 );
 		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );
 
 	} else {
 
 		// consider the position of the split plane with respect to the oncoming ray; whichever direction
 		// the ray is coming from, look for an intersection among that side of the tree first
-		const splitAxis = SPLIT_AXIS( stride4Offset );
+		const splitAxis = SPLIT_AXIS( nodeIndex32 );
 		const xyzAxis = xyzFields[ splitAxis ];
 		const rayDir = ray.direction[ xyzAxis ];
 		const leftToRight = rayDir >= 0;
@@ -69,13 +69,13 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 		let c1, c2;
 		if ( leftToRight ) {
 
-			c1 = LEFT_NODE( stride4Offset );
-			c2 = RIGHT_NODE( stride4Offset );
+			c1 = LEFT_NODE( nodeIndex32 );
+			c2 = RIGHT_NODE( nodeIndex32 );
 
 		} else {
 
-			c1 = RIGHT_NODE( stride4Offset );
-			c2 = LEFT_NODE( stride4Offset );
+			c1 = RIGHT_NODE( nodeIndex32 );
+			c2 = LEFT_NODE( nodeIndex32 );
 
 		}
 
@@ -154,7 +154,7 @@ export const shapecastBuffer = ( function () {
 
 	}
 
-	return function shapecastBuffer( stride4Offset,
+	return function shapecastBuffer( nodeIndex32,
 		mesh,
 		intersectsBoundsFunc,
 		intersectsTriangleFunc = null,
@@ -167,54 +167,54 @@ export const shapecastBuffer = ( function () {
 
 		// Define these inside the function so it has access to the local variables needed
 		// when converting to the buffer equivalents
-		function getLeftOffsetBuffer( stride4Offset ) {
+		function getLeftOffsetBuffer( nodeIndex32 ) {
 
-			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
+			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			// traverse until we find a leaf
-			while ( ! IS_LEAF( stride2Offset ) ) {
+			while ( ! IS_LEAF( nodeIndex16 ) ) {
 
-				stride4Offset = LEFT_NODE( stride4Offset );
-				stride2Offset = stride4Offset * 2;
+				nodeIndex32 = LEFT_NODE( nodeIndex32 );
+				nodeIndex16 = nodeIndex32 * 2;
 
 			}
 
-			return OFFSET( stride4Offset );
+			return OFFSET( nodeIndex32 );
 
 		}
 
-		function getRightEndOffsetBuffer( stride4Offset ) {
+		function getRightEndOffsetBuffer( nodeIndex32 ) {
 
-			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
+			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			// traverse until we find a leaf
-			while ( ! IS_LEAF( stride2Offset ) ) {
+			while ( ! IS_LEAF( nodeIndex16 ) ) {
 
 				// adjust offset to point to the right node
-				stride4Offset = RIGHT_NODE( stride4Offset );
-				stride2Offset = stride4Offset * 2;
+				nodeIndex32 = RIGHT_NODE( nodeIndex32 );
+				nodeIndex16 = nodeIndex32 * 2;
 
 			}
 
 			// return the end offset of the triangle range
-			return OFFSET( stride4Offset ) + COUNT( stride2Offset );
+			return OFFSET( nodeIndex32 ) + COUNT( nodeIndex16 );
 
 		}
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-		const isLeaf = IS_LEAF( stride2Offset );
+		const isLeaf = IS_LEAF( nodeIndex16 );
 		if ( isLeaf && intersectsTriangleFunc ) {
 
 			const geometry = mesh.geometry;
-			const offset = OFFSET( stride4Offset );
-			const count = COUNT( stride2Offset );
+			const offset = OFFSET( nodeIndex32 );
+			const count = COUNT( nodeIndex16 );
 			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
 
 		} else {
 
-			const left = LEFT_NODE( stride4Offset );
-			const right = RIGHT_NODE( stride4Offset );
+			const left = LEFT_NODE( nodeIndex32 );
+			const right = RIGHT_NODE( nodeIndex32 );
 			let c1 = left;
 			let c2 = right;
 
@@ -345,9 +345,9 @@ export const intersectsGeometryBuffer = ( function () {
 	const obb = new OrientedBox();
 	const obb2 = new OrientedBox();
 
-	return function intersectsGeometryBuffer( stride4Offset, mesh, geometry, geometryToBvh, cachedObb = null ) {
+	return function intersectsGeometryBuffer( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 		if ( cachedObb === null ) {
 
@@ -363,7 +363,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 		}
 
-		const isLeaf = IS_LEAF( stride2Offset );
+		const isLeaf = IS_LEAF( nodeIndex16 );
 		if ( isLeaf ) {
 
 			const thisGeometry = mesh.geometry;
@@ -373,8 +373,8 @@ export const intersectsGeometryBuffer = ( function () {
 			const index = geometry.index;
 			const pos = geometry.attributes.position;
 
-			const offset = OFFSET( stride4Offset );
-			const count = COUNT( stride2Offset );
+			const offset = OFFSET( nodeIndex32 );
+			const count = COUNT( nodeIndex16 );
 
 			// get the inverse of the geometry matrix so we can transform our triangles into the
 			// geometry space we're trying to test. We assume there are fewer triangles being checked
@@ -383,7 +383,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 			if ( geometry.boundsTree ) {
 
-				arrayToBoxBuffer( BOUNDING_DATA_INDEX( stride4Offset ), float32Array, obb2 );
+				arrayToBoxBuffer( BOUNDING_DATA_INDEX( nodeIndex32 ), float32Array, obb2 );
 				obb2.matrix.copy( invertedMat );
 				obb2.update();
 
@@ -445,8 +445,8 @@ export const intersectsGeometryBuffer = ( function () {
 
 		} else {
 
-			const left = stride4Offset + 8;
-			const right = uint32Array[ stride4Offset + 6 ];
+			const left = nodeIndex32 + 8;
+			const right = uint32Array[ nodeIndex32 + 6 ];
 
 			arrayToBoxBuffer( BOUNDING_DATA_INDEX( left ), float32Array, boundingBox );
 			const leftIntersection =
@@ -470,9 +470,9 @@ export const intersectsGeometryBuffer = ( function () {
 
 } )();
 
-function intersectRayBuffer( stride4Offset, array, ray, target ) {
+function intersectRayBuffer( nodeIndex32, array, ray, target ) {
 
-	arrayToBoxBuffer( stride4Offset, array, boundingBox );
+	arrayToBoxBuffer( nodeIndex32, array, boundingBox );
 	return ray.intersectBox( boundingBox, target );
 
 }
@@ -512,14 +512,14 @@ export function clearBuffer() {
 
 }
 
-function arrayToBoxBuffer( stride4Offset, array, target ) {
+function arrayToBoxBuffer( nodeIndex32, array, target ) {
 
-	target.min.x = array[ stride4Offset ];
-	target.min.y = array[ stride4Offset + 1 ];
-	target.min.z = array[ stride4Offset + 2 ];
+	target.min.x = array[ nodeIndex32 ];
+	target.min.y = array[ nodeIndex32 + 1 ];
+	target.min.z = array[ nodeIndex32 + 2 ];
 
-	target.max.x = array[ stride4Offset + 3 ];
-	target.max.y = array[ stride4Offset + 4 ];
-	target.max.z = array[ stride4Offset + 5 ];
+	target.max.x = array[ nodeIndex32 + 3 ];
+	target.max.y = array[ nodeIndex32 + 4 ];
+	target.max.z = array[ nodeIndex32 + 5 ];
 
 }

From 773b8ed2e7aa52c4a74f3f0a1a7da922130105ca Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 3 Mar 2021 23:58:38 -0800
Subject: [PATCH 037/139] regenerate cast functions

---
 package.json         |   2 +-
 src/castFunctions.js | 106 +++++++++++++++++++++----------------------
 2 files changed, 54 insertions(+), 54 deletions(-)

diff --git a/package.json b/package.json
index e0555323c..0977a0732 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "build": "npm run generate-cast-functions & rollup -c & parcel build ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache --no-source-maps --no-content-hash",
     "test": "npm run generate-cast-functions & jest",
     "lint": "eslint \"./src/*.js\" \"./test/*.js\" \"./example/*.js\"",
-    "benchmark": "node benchmark/run-benchmark.js"
+    "benchmark": "npm run generate-cast-functions & node benchmark/run-benchmark.js"
   },
   "files": [
     "src/*",
diff --git a/src/castFunctions.js b/src/castFunctions.js
index cdddd9523..355c86010 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -13,28 +13,28 @@ const boundingBox = new Box3();
 const boxIntersection = new Vector3();
 const xyzFields = [ 'x', 'y', 'z' ];
 
-export function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects ) {
+export function raycastBuffer( nodeIndex32, mesh, raycaster, ray, intersects ) {
 
-	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = ( uint16Array[ stride2Offset + 15 ] === 0xFFFF );
+	const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 	if ( isLeaf ) {
 
-		const offset = uint32Array[ stride4Offset + 6 ];
-		const count = uint16Array[ stride2Offset + 14 ];
+		const offset = uint32Array[ nodeIndex32 + 6 ];
+		const count = uint16Array[ nodeIndex16 + 14 ];
 
 		intersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );
 
 	} else {
 
-		const leftIndex = stride4Offset + 8;
+		const leftIndex = nodeIndex32 + 8;
 		if ( intersectRayBuffer( leftIndex, float32Array, ray, boxIntersection ) ) {
 
 			raycastBuffer( leftIndex, mesh, raycaster, ray, intersects );
 
 		}
 
-		const rightIndex = uint32Array[ stride4Offset + 6 ];
+		const rightIndex = uint32Array[ nodeIndex32 + 6 ];
 		if ( intersectRayBuffer( rightIndex, float32Array, ray, boxIntersection ) ) {
 
 			raycastBuffer( rightIndex, mesh, raycaster, ray, intersects );
@@ -45,22 +45,22 @@ export function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects )
 
 }
 
-export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
+export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
 
-	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	const isLeaf = ( uint16Array[ stride2Offset + 15 ] === 0xFFFF );
+	const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 	if ( isLeaf ) {
 
-		const offset = uint32Array[ stride4Offset + 6 ];
-		const count = uint16Array[ stride2Offset + 14 ];
+		const offset = uint32Array[ nodeIndex32 + 6 ];
+		const count = uint16Array[ nodeIndex16 + 14 ];
 		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );
 
 	} else {
 
 		// consider the position of the split plane with respect to the oncoming ray; whichever direction
 		// the ray is coming from, look for an intersection among that side of the tree first
-		const splitAxis = uint32Array[ stride4Offset + 7 ];
+		const splitAxis = uint32Array[ nodeIndex32 + 7 ];
 		const xyzAxis = xyzFields[ splitAxis ];
 		const rayDir = ray.direction[ xyzAxis ];
 		const leftToRight = rayDir >= 0;
@@ -69,13 +69,13 @@ export function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
 		let c1, c2;
 		if ( leftToRight ) {
 
-			c1 = stride4Offset + 8;
-			c2 = uint32Array[ stride4Offset + 6 ];
+			c1 = nodeIndex32 + 8;
+			c2 = uint32Array[ nodeIndex32 + 6 ];
 
 		} else {
 
-			c1 = uint32Array[ stride4Offset + 6 ];
-			c2 = stride4Offset + 8;
+			c1 = uint32Array[ nodeIndex32 + 6 ];
+			c2 = nodeIndex32 + 8;
 
 		}
 
@@ -154,7 +154,7 @@ export const shapecastBuffer = ( function () {
 
 	}
 
-	return function shapecastBuffer( stride4Offset,
+	return function shapecastBuffer( nodeIndex32,
 		mesh,
 		intersectsBoundsFunc,
 		intersectsTriangleFunc = null,
@@ -167,54 +167,54 @@ export const shapecastBuffer = ( function () {
 
 		// Define these inside the function so it has access to the local variables needed
 		// when converting to the buffer equivalents
-		function getLeftOffsetBuffer( stride4Offset ) {
+		function getLeftOffsetBuffer( nodeIndex32 ) {
 
-			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
+			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			// traverse until we find a leaf
-			while ( ! ( uint16Array[ stride2Offset + 15 ] === 0xFFFF ) ) {
+			while ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {
 
-				stride4Offset = stride4Offset + 8;
-				stride2Offset = stride4Offset * 2;
+				nodeIndex32 = nodeIndex32 + 8;
+				nodeIndex16 = nodeIndex32 * 2;
 
 			}
 
-			return uint32Array[ stride4Offset + 6 ];
+			return uint32Array[ nodeIndex32 + 6 ];
 
 		}
 
-		function getRightEndOffsetBuffer( stride4Offset ) {
+		function getRightEndOffsetBuffer( nodeIndex32 ) {
 
-			let stride2Offset = stride4Offset * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
+			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			// traverse until we find a leaf
-			while ( ! ( uint16Array[ stride2Offset + 15 ] === 0xFFFF ) ) {
+			while ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {
 
 				// adjust offset to point to the right node
-				stride4Offset = uint32Array[ stride4Offset + 6 ];
-				stride2Offset = stride4Offset * 2;
+				nodeIndex32 = uint32Array[ nodeIndex32 + 6 ];
+				nodeIndex16 = nodeIndex32 * 2;
 
 			}
 
 			// return the end offset of the triangle range
-			return uint32Array[ stride4Offset + 6 ] + uint16Array[ stride2Offset + 14 ];
+			return uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];
 
 		}
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-		const isLeaf = ( uint16Array[ stride2Offset + 15 ] === 0xFFFF );
+		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 		if ( isLeaf && intersectsTriangleFunc ) {
 
 			const geometry = mesh.geometry;
-			const offset = uint32Array[ stride4Offset + 6 ];
-			const count = uint16Array[ stride2Offset + 14 ];
+			const offset = uint32Array[ nodeIndex32 + 6 ];
+			const count = uint16Array[ nodeIndex16 + 14 ];
 			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
 
 		} else {
 
-			const left = stride4Offset + 8;
-			const right = uint32Array[ stride4Offset + 6 ];
+			const left = nodeIndex32 + 8;
+			const right = uint32Array[ nodeIndex32 + 6 ];
 			let c1 = left;
 			let c2 = right;
 
@@ -345,9 +345,9 @@ export const intersectsGeometryBuffer = ( function () {
 	const obb = new OrientedBox();
 	const obb2 = new OrientedBox();
 
-	return function intersectsGeometryBuffer( stride4Offset, mesh, geometry, geometryToBvh, cachedObb = null ) {
+	return function intersectsGeometryBuffer( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 		if ( cachedObb === null ) {
 
@@ -363,7 +363,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 		}
 
-		const isLeaf = ( uint16Array[ stride2Offset + 15 ] === 0xFFFF );
+		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 		if ( isLeaf ) {
 
 			const thisGeometry = mesh.geometry;
@@ -373,8 +373,8 @@ export const intersectsGeometryBuffer = ( function () {
 			const index = geometry.index;
 			const pos = geometry.attributes.position;
 
-			const offset = uint32Array[ stride4Offset + 6 ];
-			const count = uint16Array[ stride2Offset + 14 ];
+			const offset = uint32Array[ nodeIndex32 + 6 ];
+			const count = uint16Array[ nodeIndex16 + 14 ];
 
 			// get the inverse of the geometry matrix so we can transform our triangles into the
 			// geometry space we're trying to test. We assume there are fewer triangles being checked
@@ -383,7 +383,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 			if ( geometry.boundsTree ) {
 
-				arrayToBoxBuffer( stride4Offset, float32Array, obb2 );
+				arrayToBoxBuffer( nodeIndex32, float32Array, obb2 );
 				obb2.matrix.copy( invertedMat );
 				obb2.update();
 
@@ -445,8 +445,8 @@ export const intersectsGeometryBuffer = ( function () {
 
 		} else {
 
-			const left = stride4Offset + 8;
-			const right = uint32Array[ stride4Offset + 6 ];
+			const left = nodeIndex32 + 8;
+			const right = uint32Array[ nodeIndex32 + 6 ];
 
 			arrayToBoxBuffer( left, float32Array, boundingBox );
 			const leftIntersection =
@@ -470,9 +470,9 @@ export const intersectsGeometryBuffer = ( function () {
 
 } )();
 
-function intersectRayBuffer( stride4Offset, array, ray, target ) {
+function intersectRayBuffer( nodeIndex32, array, ray, target ) {
 
-	arrayToBoxBuffer( stride4Offset, array, boundingBox );
+	arrayToBoxBuffer( nodeIndex32, array, boundingBox );
 	return ray.intersectBox( boundingBox, target );
 
 }
@@ -512,14 +512,14 @@ export function clearBuffer() {
 
 }
 
-function arrayToBoxBuffer( stride4Offset, array, target ) {
+function arrayToBoxBuffer( nodeIndex32, array, target ) {
 
-	target.min.x = array[ stride4Offset ];
-	target.min.y = array[ stride4Offset + 1 ];
-	target.min.z = array[ stride4Offset + 2 ];
+	target.min.x = array[ nodeIndex32 ];
+	target.min.y = array[ nodeIndex32 + 1 ];
+	target.min.z = array[ nodeIndex32 + 2 ];
 
-	target.max.x = array[ stride4Offset + 3 ];
-	target.max.y = array[ stride4Offset + 4 ];
-	target.max.z = array[ stride4Offset + 5 ];
+	target.max.x = array[ nodeIndex32 + 3 ];
+	target.max.y = array[ nodeIndex32 + 4 ];
+	target.max.z = array[ nodeIndex32 + 5 ];
 
 }

From ab320077c0fdea6dd144fc424bbf289e2403e494 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 00:03:39 -0800
Subject: [PATCH 038/139] comments

---
 scripts/generate-cast-functions.js | 1 +
 src/castFunctions.js               | 7 ++++---
 src/castFunctions.template.js      | 5 ++++-
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/scripts/generate-cast-functions.js b/scripts/generate-cast-functions.js
index 5b94af12f..ebba10bfb 100644
--- a/scripts/generate-cast-functions.js
+++ b/scripts/generate-cast-functions.js
@@ -15,6 +15,7 @@ contents = replaceFunctionMacro( contents, 'LEFT_NODE', '$1 + 8' );
 contents = replaceFunctionMacro( contents, 'RIGHT_NODE', 'uint32Array[ $1 + 6 ]' );
 contents = replaceFunctionMacro( contents, 'SPLIT_AXIS', 'uint32Array[ $1 + 7 ]' );
 contents = replaceFunctionMacro( contents, 'BOUNDING_DATA_INDEX', '$1' );
+contents = contents.replace( /^\/\*[\S\s]*?\*\//g, '/* Generated from "castFunctions.template.js". Do not edit. */' );
 
 fs.writeFileSync( outputPath, contents );
 
diff --git a/src/castFunctions.js b/src/castFunctions.js
index 355c86010..48381515f 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -1,6 +1,7 @@
-/* global
-	IS_LEAF, OFFSET, COUNT, RIGHT_NODE, LEFT_NODE, BOUNDING_DATA_INDEX,
-*/
+/* Generated from "castFunctions.template.js". Do not edit. */
+
+// For speed and readability this script is processed to replace the macro-like calls
+// with inline buffer reads. See generate-cast-functions.js.
 import { Box3, Vector3, Mesh, Matrix4 } from 'three';
 import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
 
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index b1b5bbe16..41e02e77d 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -1,6 +1,9 @@
 /* global
-	IS_LEAF, OFFSET, COUNT, RIGHT_NODE, LEFT_NODE, BOUNDING_DATA_INDEX,
+	IS_LEAF, OFFSET, COUNT, RIGHT_NODE, LEFT_NODE, BOUNDING_DATA_INDEX, SPLIT_AXIS
 */
+
+// For speed and readability this script is processed to replace the macro-like calls
+// with inline buffer reads. See generate-cast-functions.js.
 import { Box3, Vector3, Mesh, Matrix4 } from 'three';
 import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
 

From e8b6aa70c8c7185114286e890beecfd29f020fb6 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 13:33:57 -0800
Subject: [PATCH 039/139] Add sculpt demo

---
 example/sculpt.html                     |  40 +++
 example/sculpt.js                       | 401 ++++++++++++++++++++++++
 example/textures/skinHazardousarts2.jpg | Bin 0 -> 40672 bytes
 3 files changed, 441 insertions(+)
 create mode 100644 example/sculpt.html
 create mode 100644 example/sculpt.js
 create mode 100644 example/textures/skinHazardousarts2.jpg

diff --git a/example/sculpt.html b/example/sculpt.html
new file mode 100644
index 000000000..67183caa3
--- /dev/null
+++ b/example/sculpt.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>THREE.js BVH Geometry Collect Triangles</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
+
+    <style type="text/css">
+        html, body {
+            padding: 0;
+            margin: 0;
+            overflow: hidden;
+        }
+
+        canvas {
+            width: 100%;
+            height: 100%;
+        }
+
+		#info {
+			position: absolute;
+			top: 0;
+			width: 100%;
+			color: white;
+			font-family: monospace;
+			text-align: center;
+			padding: 5px 0;
+		}
+
+		a {
+			color: #eee;
+		}
+    </style>
+</head>
+<body>
+	<div id="info">
+		Inspired by and Matcap texture from <a href="https://github.com/stephomi/sculptgl">SculptGL</a>.
+	</div>
+    <script src="./sculpt.js"></script>
+</body>
+</html>
diff --git a/example/sculpt.js b/example/sculpt.js
new file mode 100644
index 000000000..7c9ae39a1
--- /dev/null
+++ b/example/sculpt.js
@@ -0,0 +1,401 @@
+import Stats from 'stats.js/src/Stats';
+import * as dat from 'dat.gui';
+import * as THREE from 'three';
+import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js';
+import {
+	acceleratedRaycast,
+	computeBoundsTree,
+	disposeBoundsTree,
+	CONTAINED,
+	INTERSECTED,
+	NOT_INTERSECTED,
+	MeshBVHVisualizer,
+} from '../src/index.js';
+import "@babel/polyfill";
+
+THREE.Mesh.prototype.raycast = acceleratedRaycast;
+THREE.BufferGeometry.prototype.computeBoundsTree = computeBoundsTree;
+THREE.BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
+
+// TODO:
+// - Reset button
+// - Better brush shape
+// - Multiple brush types
+// - SculptGL credit
+// - Better brush strokes
+// - Refit based on index search
+// - Generate new BVH in background and do refit after transfer
+// - Fix normals
+// - Fix seam down the back of the sphere
+// - Simplify and tessellate buttons
+
+const params = {
+	size: 0.1,
+	intensity: 0.002,
+	flatShading: true,
+	depth: 10,
+	displayHelper: false,
+};
+
+let stats;
+let scene, camera, renderer, controls;
+let targetMesh, brush, bvhHelper;
+let normalZ = new THREE.Vector3( 0, 0, 1 );
+let mouse = new THREE.Vector2(), lastMouse = new THREE.Vector2();
+let mouseState = false, lastMouseState = false;
+
+function init() {
+
+	const bgColor = 0x263238 / 2;
+
+	// renderer setup
+	renderer = new THREE.WebGLRenderer( { antialias: true } );
+	renderer.setPixelRatio( window.devicePixelRatio );
+	renderer.setSize( window.innerWidth, window.innerHeight );
+	renderer.setClearColor( bgColor, 1 );
+	renderer.gammaOutput = true;
+	document.body.appendChild( renderer.domElement );
+
+	// scene setup
+	scene = new THREE.Scene();
+	scene.fog = new THREE.Fog( 0x263238 / 2, 20, 60 );
+
+	const light = new THREE.DirectionalLight( 0xffffff, 0.5 );
+	light.position.set( 1, 1, 1 );
+	scene.add( light );
+	scene.add( new THREE.AmbientLight( 0xffffff, 0.4 ) );
+
+	// geometry setup
+	targetMesh = new THREE.Mesh(
+		new THREE.SphereBufferGeometry( 1, 1000, 1000 ),
+		new THREE.MeshMatcapMaterial( {
+			wireframe: true,
+			flatShading: params.flatShading,
+			matcap: new THREE.TextureLoader().load( '../textures/skinHazardousarts2.jpg' ),
+		} ) );
+
+	targetMesh.geometry.computeBoundsTree();
+	targetMesh.material.matcap.encoding = THREE.sRGBEncoding;
+	scene.add( targetMesh );
+
+	// initialize bvh helper
+	bvhHelper = new MeshBVHVisualizer( targetMesh, params.depth );
+	bvhHelper.visible = params.displayHelper;
+	scene.add( bvhHelper );
+
+	// initialize brush shape
+	const brushSegments = [ new THREE.Vector3(), new THREE.Vector3( 0, 0, 1 ) ];
+	for ( let i = 0; i < 50; i ++ ) {
+
+		const nexti = i + 1;
+		const x1 = Math.sin( 2 * Math.PI * i / 50 );
+		const y1 = Math.cos( 2 * Math.PI * i / 50 );
+
+		const x2 = Math.sin( 2 * Math.PI * nexti / 50 );
+		const y2 = Math.cos( 2 * Math.PI * nexti / 50 );
+
+		brushSegments.push(
+			new THREE.Vector3( x1, y1, 0 ),
+			new THREE.Vector3( x2, y2, 0 )
+		);
+
+	}
+	brush = new THREE.LineSegments();
+	brush.geometry.setFromPoints( brushSegments );
+	brush.material.color.set( 0xff9800 );
+	scene.add( brush );
+
+	// camera setup
+	camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 50 );
+	camera.position.set( 3, 3, 3 );
+	camera.far = 100;
+	camera.updateProjectionMatrix();
+
+	controls = new OrbitControls( camera, renderer.domElement );
+	controls.minDistance = 1.5;
+
+	// stats setup
+	stats = new Stats();
+	document.body.appendChild( stats.dom );
+
+	const gui = new dat.GUI();
+
+	const sculptFolder = gui.addFolder( 'Sculpting' );
+	sculptFolder.add( params, 'size' ).min( 0.05 ).max( 0.25 ).step( 0.01 );
+	sculptFolder.add( params, 'intensity' ).min( 0.001 ).max( 0.01 ).step( 0.001 );
+	sculptFolder.add( params, 'flatShading' ).onChange( value => {
+
+		targetMesh.material.flatShading = value;
+		targetMesh.material.needsUpdate = true;
+
+	} );
+	sculptFolder.open();
+
+	const helperFolder = gui.addFolder( 'BVH Helper' );
+	helperFolder.add( params, 'depth' ).min( 1 ).max( 20 ).step( 1 ).onChange( d => {
+
+		bvhHelper.depth = parseFloat( d );
+		bvhHelper.update();
+
+	} );
+	helperFolder.add( params, 'displayHelper' ).onChange( display => {
+
+		bvhHelper.visible = display;
+
+	} );
+	helperFolder.open();
+
+
+	gui.open();
+
+	controls.addEventListener( 'start', function () {
+
+		this.active = true;
+
+	} );
+
+	controls.addEventListener( 'end', function () {
+
+		this.active = false;
+
+	} );
+
+	window.addEventListener( 'resize', function () {
+
+		camera.aspect = window.innerWidth / window.innerHeight;
+		camera.updateProjectionMatrix();
+
+		renderer.setSize( window.innerWidth, window.innerHeight );
+
+	}, false );
+
+	window.addEventListener( 'mousemove', function ( e ) {
+
+		mouse.x = ( e.clientX / window.innerWidth ) * 2 - 1;
+		mouse.y = - ( e.clientY / window.innerHeight ) * 2 + 1;
+
+	} );
+
+	window.addEventListener( 'mousedown', e => {
+
+		mouseState = Boolean( e.buttons & 1 );
+
+	} );
+
+	window.addEventListener( 'mouseup', e => {
+
+		mouseState = Boolean( e.buttons & 1 );
+
+	} );
+
+	window.addEventListener( 'contextmenu', function ( e ) {
+
+		e.preventDefault();
+
+	} );
+
+	window.addEventListener( 'wheel', function ( e ) {
+
+		let delta = e.deltaY;
+
+		if ( e.deltaMode === 1 ) {
+
+			delta *= 40;
+
+		}
+
+		if ( e.deltaMode === 2 ) {
+
+			delta *= 40;
+
+		}
+
+		params.size += delta * 0.0005;
+		params.size = Math.max( Math.min( params.size, 0.25 ), 0.05 );
+
+		gui.updateDisplay();
+
+	} );
+
+}
+
+function render() {
+
+	requestAnimationFrame( render );
+
+	stats.begin();
+
+	if ( controls.active ) {
+
+		brush.visible = false;
+
+	} else {
+
+		const raycaster = new THREE.Raycaster();
+		raycaster.setFromCamera( mouse, camera );
+		raycaster.firstHitOnly = true;
+
+		const hit = raycaster.intersectObject( targetMesh, true )[ 0 ];
+		if ( hit ) {
+
+			brush.visible = true;
+			brush.scale.set( params.size, params.size, 0.1 );
+			brush.position.copy( hit.point );
+			brush.quaternion.setFromUnitVectors( normalZ, hit.face.normal );
+			controls.enabled = false;
+
+			if ( mouseState || lastMouseState ) {
+
+				const inverseMatrix = new THREE.Matrix4();
+				inverseMatrix.copy( targetMesh.matrixWorld ).invert();
+
+				const sphere = new THREE.Sphere();
+				sphere.center.copy( hit.point ).applyMatrix4( inverseMatrix );
+				sphere.radius = params.size;
+
+				const indices = [];
+				const tempVec = new THREE.Vector3();
+				const tempVec2 = new THREE.Vector3();
+				const tempVec3 = new THREE.Vector3();
+				const bvh = targetMesh.geometry.boundsTree;
+				bvh.shapecast(
+					targetMesh,
+					box => {
+
+						const intersects = sphere.intersectsBox( box );
+						const { min, max } = box;
+						if ( intersects ) {
+
+							for ( let x = 0; x <= 1; x ++ ) {
+
+								for ( let y = 0; y <= 1; y ++ ) {
+
+									for ( let z = 0; z <= 1; z ++ ) {
+
+										tempVec.set(
+											x === 0 ? min.x : max.x,
+											y === 0 ? min.y : max.y,
+											z === 0 ? min.z : max.z
+										);
+										if ( ! sphere.containsPoint( tempVec ) ) {
+
+											return INTERSECTED;
+
+										}
+
+									}
+
+								}
+
+							}
+
+							return CONTAINED;
+
+						}
+
+						return intersects ? INTERSECTED : NOT_INTERSECTED;
+
+					},
+					( tri, a, b, c, contained ) => {
+
+						if ( contained || tri.intersectsSphere( sphere ) ) {
+
+							indices.push( a, b, c );
+
+						}
+
+						return false;
+
+					}
+				);
+
+				const indexToTriangles = {};
+				const indexAttr = targetMesh.geometry.index;
+				const posAttr = targetMesh.geometry.attributes.position;
+				const normalAttr = targetMesh.geometry.attributes.normal;
+				const indexSet = new Set( indices );
+
+				tempVec2.copy( hit.point ).applyMatrix4( inverseMatrix );
+				tempVec3.copy( hit.face.normal ).transformDirection( targetMesh.matrixWorld );
+				indexSet.forEach( i => {
+
+					const index = indexAttr.getX( i );
+					tempVec.fromBufferAttribute( posAttr, index );
+
+					const dist = tempVec.distanceTo( tempVec2 );
+					if ( dist > params.size ) {
+
+						return;
+
+					}
+
+					const intensity = 1.0 - ( dist / params.size );
+					tempVec.addScaledVector( tempVec3, intensity * params.intensity );
+					posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
+
+					let arr = indexToTriangles[ index ];
+					if ( ! arr ) {
+
+						arr = indexToTriangles[ index ] = [];
+
+					}
+
+					arr.push( ~ ~ ( i / 3 ) );
+
+				} );
+
+				if ( indices.length ) {
+
+					console.time('NORMALS');
+					const triangle = new THREE.Triangle();
+					for ( const index in indexToTriangles ) {
+
+						tempVec.set( 0, 0, 0 );
+
+						const arr = indexToTriangles[ index ];
+						for ( const tri in arr ) {
+
+							const i3 = tri * 3;
+							triangle.a.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 0 ) );
+							triangle.b.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 1 ) );
+							triangle.c.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 2 ) );
+
+							triangle.getNormal( tempVec2 );
+							tempVec.add( tempVec2 );
+
+						}
+
+						tempVec.multiplyScalar( 1 / arr.length );
+						normalAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
+
+					}
+					console.timeEnd('NORMALS');
+
+					posAttr.needsUpdate = true;
+					normalAttr.needsUpdate = true;
+
+				}
+
+
+			}
+
+		} else {
+
+			controls.enabled = true;
+			brush.visible = false;
+
+		}
+
+	}
+
+	lastMouseState = mouseState;
+	lastMouse.copy( mouse );
+
+	renderer.render( scene, camera );
+	stats.end();
+
+}
+
+
+init();
+render();
diff --git a/example/textures/skinHazardousarts2.jpg b/example/textures/skinHazardousarts2.jpg
new file mode 100644
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z&#nEupsIq(V;y&3<ndQK@AS3@r`q@=f7@tH;Qz(3fN1J;wm-Lf4VyWw1Do1~re|}5
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J0D`|q{|#>G8^-_u

literal 0
HcmV?d00001


From 6408091ba56031500732114c7bc1fcb7e6b9f122 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 13:34:25 -0800
Subject: [PATCH 040/139] add initial refit function

---
 src/MeshBVH.js | 111 +++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 98 insertions(+), 13 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 46020f5e7..79635ae94 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -104,34 +104,119 @@ export default class MeshBVH {
 
 	}
 
+	refit( geometry ) {
+
+		const indexArr = geometry.index.array;
+		const posArr = geometry.attributes.position;
+		let buffer, uint32Array, uint16Array;
+		const roots = this._roots;
+		for ( let i = 0, l = roots.length; i < l; i ++ ) {
+
+			buffer = roots[ i ];
+			uint32Array = new Uint32Array( buffer );
+			uint16Array = new Uint16Array( buffer );
+			_traverse( 0 );
+
+		}
+
+		function _traverse( node32Index ) {
+
+			const node16Index = node32Index * 2;
+			const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
+			if ( isLeaf ) {
+
+				const offset = uint32Array[ node32Index + 6 ];
+				const count = uint16Array[ node16Index + 14 ];
+
+				let minx = Infinity;
+				let miny = Infinity;
+				let minz = Infinity;
+				let maxx = - Infinity;
+				let maxy = - Infinity;
+				let maxz = - Infinity;
+				for ( let i = offset, l = offset + count; i < l; i ++ ) {
+
+					const index3 = indexArr[ i ] * 3;
+					const x = posArr[ index3 + 0 ];
+					const y = posArr[ index3 + 1 ];
+					const z = posArr[ index3 + 2 ];
+
+					if ( x < minx ) minx = x;
+					if ( x > maxx ) maxx = x;
+
+					if ( y < miny ) miny = y;
+					if ( y > maxy ) maxy = y;
+
+					if ( z < minz ) minz = z;
+					if ( z > maxz ) maxz = z;
+
+				}
+				uint32Array[ node32Index + 0 ] = minx;
+				uint32Array[ node32Index + 1 ] = miny;
+				uint32Array[ node32Index + 2 ] = minz;
+
+				uint32Array[ node32Index + 3 ] = maxx;
+				uint32Array[ node32Index + 4 ] = maxy;
+				uint32Array[ node32Index + 5 ] = maxz;
+
+			} else {
+
+				const left = node32Index + BYTES_PER_NODE / 4;
+				const right = uint32Array[ node32Index + 6 ];
+
+				_traverse( left );
+				_traverse( right );
+
+				for ( let i = 0; i < 6; i ++ ) {
+
+					const lValue = uint32Array[ left + i ];
+					const rValue = uint32Array[ right + i ];
+					if ( i < 3 ) {
+
+						uint32Array[ node32Index + i ] = lValue < rValue ? lValue : rValue;
+
+					} else {
+
+						uint32Array[ node32Index + i ] = lValue > rValue ? lValue : rValue;
+
+					}
+
+				}
+
+			}
+
+		}
+
+	}
+
 	traverse( callback, rootIndex = 0 ) {
 
 		const buffer = this._roots[ rootIndex ];
 		const uint32Array = new Uint32Array( buffer );
 		const uint16Array = new Uint16Array( buffer );
-		_traverseBuffer( 0 );
+		_traverse( 0 );
 
-		function _traverseBuffer( stride4Offset, depth = 0 ) {
+		function _traverse( node32Index, depth = 0 ) {
 
-			const stride2Offset = stride4Offset * 2;
-			const isLeaf = uint16Array[ stride2Offset + 15 ] === IS_LEAFNODE_FLAG;
+			const node16Index = node32Index * 2;
+			const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
 			if ( isLeaf ) {
 
-				const offset = uint32Array[ stride4Offset + 6 ];
-				const count = uint16Array[ stride2Offset + 14 ];
-				callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), offset, count );
+				const offset = uint32Array[ node32Index + 6 ];
+				const count = uint16Array[ node16Index + 14 ];
+				callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );
 
 			} else {
 
-				const left = stride4Offset + BYTES_PER_NODE / 4;
-				const right = uint32Array[ stride4Offset + 6 ];
-				const splitAxis = uint32Array[ stride4Offset + 7 ];
-				const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), splitAxis );
+				const left = node32Index + BYTES_PER_NODE / 4;
+				const right = uint32Array[ node32Index + 6 ];
+				const splitAxis = uint32Array[ node32Index + 7 ];
+				const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );
 
 				if ( ! stopTraversal ) {
 
-					_traverseBuffer( left, depth + 1 );
-					_traverseBuffer( right, depth + 1 );
+					_traverse( left, depth + 1 );
+					_traverse( right, depth + 1 );
 
 				}
 

From 13452bfd1735a95658ef3e3b567c8c0446913b23 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 18:30:24 -0800
Subject: [PATCH 041/139] Fix refit function

---
 src/MeshBVH.js | 66 ++++++++++++++++++++++++++++++++++----------------
 1 file changed, 45 insertions(+), 21 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 79635ae94..834b96573 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -107,18 +107,18 @@ export default class MeshBVH {
 	refit( geometry ) {
 
 		const indexArr = geometry.index.array;
-		const posArr = geometry.attributes.position;
-		let buffer, uint32Array, uint16Array;
+		const posArr = geometry.attributes.position.array;
+		let buffer, uint32Array, uint16Array, float32Array;
 		const roots = this._roots;
 		for ( let i = 0, l = roots.length; i < l; i ++ ) {
 
 			buffer = roots[ i ];
 			uint32Array = new Uint32Array( buffer );
 			uint16Array = new Uint16Array( buffer );
+			float32Array = new Float32Array( buffer );
 			_traverse( 0 );
 
 		}
-
 		function _traverse( node32Index ) {
 
 			const node16Index = node32Index * 2;
@@ -134,7 +134,7 @@ export default class MeshBVH {
 				let maxx = - Infinity;
 				let maxy = - Infinity;
 				let maxz = - Infinity;
-				for ( let i = offset, l = offset + count; i < l; i ++ ) {
+				for ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {
 
 					const index3 = indexArr[ i ] * 3;
 					const x = posArr[ index3 + 0 ];
@@ -151,38 +151,62 @@ export default class MeshBVH {
 					if ( z > maxz ) maxz = z;
 
 				}
-				uint32Array[ node32Index + 0 ] = minx;
-				uint32Array[ node32Index + 1 ] = miny;
-				uint32Array[ node32Index + 2 ] = minz;
 
-				uint32Array[ node32Index + 3 ] = maxx;
-				uint32Array[ node32Index + 4 ] = maxy;
-				uint32Array[ node32Index + 5 ] = maxz;
+				if (
+					float32Array[ node32Index + 0 ] !== minx ||
+					float32Array[ node32Index + 1 ] !== miny ||
+					float32Array[ node32Index + 2 ] !== minz ||
+
+					float32Array[ node32Index + 3 ] !== maxx ||
+					float32Array[ node32Index + 4 ] !== maxy ||
+					float32Array[ node32Index + 5 ] !== maxz
+				) {
+
+					float32Array[ node32Index + 0 ] = minx;
+					float32Array[ node32Index + 1 ] = miny;
+					float32Array[ node32Index + 2 ] = minz;
+
+					float32Array[ node32Index + 3 ] = maxx;
+					float32Array[ node32Index + 4 ] = maxy;
+					float32Array[ node32Index + 5 ] = maxz;
+
+					return true;
+
+				} else {
+
+					return false;
+
+				}
 
 			} else {
 
-				const left = node32Index + BYTES_PER_NODE / 4;
+				const left = node32Index + 8;
 				const right = uint32Array[ node32Index + 6 ];
 
-				_traverse( left );
-				_traverse( right );
-
-				for ( let i = 0; i < 6; i ++ ) {
+				const leftChange = _traverse( left );
+				const rightChange = _traverse( right );
+				const didChange = leftChange || rightChange;
 
-					const lValue = uint32Array[ left + i ];
-					const rValue = uint32Array[ right + i ];
-					if ( i < 3 ) {
+				if ( didChange ) {
 
-						uint32Array[ node32Index + i ] = lValue < rValue ? lValue : rValue;
+					for ( let i = 0; i < 3; i ++ ) {
 
-					} else {
+						const lefti = left + i;
+						const righti = right + i;
+						const minLeftValue = float32Array[ lefti ];
+						const maxLeftValue = float32Array[ lefti + 3 ];
+						const minRightValue = float32Array[ righti ];
+						const maxRightValue = float32Array[ righti + 3 ];
 
-						uint32Array[ node32Index + i ] = lValue > rValue ? lValue : rValue;
+						float32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;
+						float32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;
 
 					}
 
 				}
 
+				return didChange;
+
 			}
 
 		}

From 5aff1db7609dd99648a07c7041fcd6b5e15dd2b5 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 18:30:34 -0800
Subject: [PATCH 042/139] Add error if the buffer gets too big

---
 src/buildFunctions.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/buildFunctions.js b/src/buildFunctions.js
index f882e1492..3cfc308e4 100644
--- a/src/buildFunctions.js
+++ b/src/buildFunctions.js
@@ -715,6 +715,12 @@ export function buildPackedTree( geo, options ) {
 			let nextUnusedPointer;
 			nextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );
 
+			if ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {
+
+				throw new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );
+
+			}
+
 			uint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;
 			nextUnusedPointer = populateBuffer( nextUnusedPointer, right );
 

From c6af24fcd76b0b6d711fcddb2b45d1db1acd8e04 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 19:23:33 -0800
Subject: [PATCH 043/139] sculpt update

---
 example/sculpt.js | 110 +++++++++++++++++++++++++++++++++-------------
 1 file changed, 79 insertions(+), 31 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 7c9ae39a1..a7cea6d8a 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -2,6 +2,7 @@ import Stats from 'stats.js/src/Stats';
 import * as dat from 'dat.gui';
 import * as THREE from 'three';
 import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js';
+import { BufferGeometryUtils } from 'three/examples/jsm/utils/BufferGeometryUtils.js';
 import {
 	acceleratedRaycast,
 	computeBoundsTree,
@@ -18,31 +19,71 @@ THREE.BufferGeometry.prototype.computeBoundsTree = computeBoundsTree;
 THREE.BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
 
 // TODO:
-// - Reset button
+// - Average brush orientation from multiple points
 // - Better brush shape
 // - Multiple brush types
-// - SculptGL credit
 // - Better brush strokes
-// - Refit based on index search
 // - Generate new BVH in background and do refit after transfer
-// - Fix normals
-// - Fix seam down the back of the sphere
-// - Simplify and tessellate buttons
+
+let stats;
+let scene, camera, renderer, controls;
+let targetMesh, brush, bvhHelper;
+let normalZ = new THREE.Vector3( 0, 0, 1 );
+let mouse = new THREE.Vector2(), lastMouse = new THREE.Vector2();
+let mouseState = false, lastMouseState = false;
+let matcap;
 
 const params = {
 	size: 0.1,
+	clayBrush: true,
 	intensity: 0.002,
-	flatShading: true,
+	flatShading: false,
 	depth: 10,
 	displayHelper: false,
 };
 
-let stats;
-let scene, camera, renderer, controls;
-let targetMesh, brush, bvhHelper;
-let normalZ = new THREE.Vector3( 0, 0, 1 );
-let mouse = new THREE.Vector2(), lastMouse = new THREE.Vector2();
-let mouseState = false, lastMouseState = false;
+function reset() {
+
+	if ( targetMesh ) {
+
+		targetMesh.geometry.dispose();
+		targetMesh.material.dispose();
+		scene.remove( targetMesh );
+
+	}
+
+	if ( ! matcap ) {
+
+		matcap = new THREE.TextureLoader().load( '../textures/skinHazardousarts2.jpg' );
+
+	}
+
+	let geometry = new THREE.IcosahedronBufferGeometry( 1, 100 );
+	geometry.deleteAttribute( 'uv' );
+	geometry = BufferGeometryUtils.mergeVertices( geometry );
+
+	geometry.computeBoundsTree();
+	geometry.attributes.position.setUsage( THREE.DynamicDrawUsage );
+	geometry.attributes.normal.setUsage( THREE.DynamicDrawUsage );
+
+	targetMesh = new THREE.Mesh(
+		geometry,
+		new THREE.MeshMatcapMaterial( {
+			wireframe: true,
+			flatShading: params.flatShading,
+			matcap
+		} )
+	);
+	targetMesh.material.matcap.encoding = THREE.sRGBEncoding;
+	scene.add( targetMesh );
+
+	if ( bvhHelper ) {
+
+		bvhHelper.update();
+
+	}
+
+}
 
 function init() {
 
@@ -66,17 +107,7 @@ function init() {
 	scene.add( new THREE.AmbientLight( 0xffffff, 0.4 ) );
 
 	// geometry setup
-	targetMesh = new THREE.Mesh(
-		new THREE.SphereBufferGeometry( 1, 1000, 1000 ),
-		new THREE.MeshMatcapMaterial( {
-			wireframe: true,
-			flatShading: params.flatShading,
-			matcap: new THREE.TextureLoader().load( '../textures/skinHazardousarts2.jpg' ),
-		} ) );
-
-	targetMesh.geometry.computeBoundsTree();
-	targetMesh.material.matcap.encoding = THREE.sRGBEncoding;
-	scene.add( targetMesh );
+	reset();
 
 	// initialize bvh helper
 	bvhHelper = new MeshBVHVisualizer( targetMesh, params.depth );
@@ -121,8 +152,9 @@ function init() {
 	const gui = new dat.GUI();
 
 	const sculptFolder = gui.addFolder( 'Sculpting' );
+	sculptFolder.add( params, 'clayBrush' );
 	sculptFolder.add( params, 'size' ).min( 0.05 ).max( 0.25 ).step( 0.01 );
-	sculptFolder.add( params, 'intensity' ).min( 0.001 ).max( 0.01 ).step( 0.001 );
+	sculptFolder.add( params, 'intensity' ).min( - 0.01 ).max( 0.01 ).step( 0.001 );
 	sculptFolder.add( params, 'flatShading' ).onChange( value => {
 
 		targetMesh.material.flatShading = value;
@@ -145,7 +177,13 @@ function init() {
 	} );
 	helperFolder.open();
 
+	gui.add( { reset }, 'reset' );
+	gui.add( { rebuildBVH: () => {
+
+		targetMesh.geometry.computeBoundsTree();
+		bvhHelper.update();
 
+	} }, 'rebuildBVH' );
 	gui.open();
 
 	controls.addEventListener( 'start', function () {
@@ -244,7 +282,7 @@ function render() {
 			brush.quaternion.setFromUnitVectors( normalZ, hit.face.normal );
 			controls.enabled = false;
 
-			if ( mouseState || lastMouseState ) {
+			if ( ( mouseState || lastMouseState ) && mouse.distanceTo( lastMouse ) > 0.001 ) {
 
 				const inverseMatrix = new THREE.Matrix4();
 				inverseMatrix.copy( targetMesh.matrixWorld ).invert();
@@ -329,7 +367,14 @@ function render() {
 
 					}
 
-					const intensity = 1.0 - ( dist / params.size );
+					let intensity = 1.0 - ( dist / params.size );
+					intensity *= intensity;
+					if ( params.clayBrush ) {
+
+						intensity = Math.min( intensity, 0.1 );
+
+					}
+
 					tempVec.addScaledVector( tempVec3, intensity * params.intensity );
 					posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 
@@ -346,7 +391,7 @@ function render() {
 
 				if ( indices.length ) {
 
-					console.time('NORMALS');
+					// TODO: this can be improved
 					const triangle = new THREE.Triangle();
 					for ( const index in indexToTriangles ) {
 
@@ -355,7 +400,7 @@ function render() {
 						const arr = indexToTriangles[ index ];
 						for ( const tri in arr ) {
 
-							const i3 = tri * 3;
+							const i3 = arr[ tri ] * 3;
 							triangle.a.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 0 ) );
 							triangle.b.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 1 ) );
 							triangle.c.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 2 ) );
@@ -365,15 +410,18 @@ function render() {
 
 						}
 
-						tempVec.multiplyScalar( 1 / arr.length );
+						tempVec.normalize();
 						normalAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 
 					}
-					console.timeEnd('NORMALS');
 
 					posAttr.needsUpdate = true;
 					normalAttr.needsUpdate = true;
 
+					targetMesh.geometry.boundsTree.refit( targetMesh.geometry );
+
+					bvhHelper.update();
+
 				}
 
 

From 72703968261bfd446357ce2fbd35abec7078b4c6 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 19:23:38 -0800
Subject: [PATCH 044/139] refit benchmark

---
 benchmark/run-benchmark.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/benchmark/run-benchmark.js b/benchmark/run-benchmark.js
index f20bdf833..31c1fdfa5 100644
--- a/benchmark/run-benchmark.js
+++ b/benchmark/run-benchmark.js
@@ -64,6 +64,20 @@ function runSuite( strategy ) {
 	);
 
 	geometry.computeBoundsTree( options );
+	runBenchmark(
+
+		'Refit',
+		null,
+		() => {
+
+			geometry.boundsTree.refit( geometry );
+
+		},
+		3000,
+		50
+
+	);
+
 	runBenchmark(
 
 		'Serialize',

From 02481a8d4167e5259e96b01b15d2b7a1866f217e Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 19:23:42 -0800
Subject: [PATCH 045/139] comments

---
 example/sculpt.js | 2 --
 1 file changed, 2 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index a7cea6d8a..f1aeafd0d 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -20,8 +20,6 @@ THREE.BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
 
 // TODO:
 // - Average brush orientation from multiple points
-// - Better brush shape
-// - Multiple brush types
 // - Better brush strokes
 // - Generate new BVH in background and do refit after transfer
 

From ae9ac6314804fbc26b03daa1ce6dfc80cd2e641f Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 19:31:04 -0800
Subject: [PATCH 046/139] Remove `Buffer` from cast function names

---
 src/MeshBVH.js                | 16 ++++-----
 src/castFunctions.js          | 68 +++++++++++++++++------------------
 src/castFunctions.template.js | 68 +++++++++++++++++------------------
 3 files changed, 76 insertions(+), 76 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 834b96573..f3ae978ea 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -5,10 +5,10 @@ import { OrientedBox } from './Utils/OrientedBox.js';
 import { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';
 import { setTriangle } from './Utils/TriangleUtils.js';
 import {
-	raycastBuffer,
-	raycastFirstBuffer,
-	shapecastBuffer,
-	intersectsGeometryBuffer,
+	raycast,
+	raycastFirst,
+	shapecast,
+	intersectsGeometry,
 	setBuffer,
 	clearBuffer,
 } from './castFunctions.js';
@@ -256,7 +256,7 @@ export default class MeshBVH {
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			raycastBuffer( 0, mesh, raycaster, ray, intersects );
+			raycast( 0, mesh, raycaster, ray, intersects );
 
 		}
 
@@ -270,7 +270,7 @@ export default class MeshBVH {
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			const result = raycastFirstBuffer( 0, mesh, raycaster, ray );
+			const result = raycastFirst( 0, mesh, raycaster, ray );
 
 			if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
 
@@ -292,7 +292,7 @@ export default class MeshBVH {
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			result = intersectsGeometryBuffer( 0, mesh, geometry, geomToMesh );
+			result = intersectsGeometry( 0, mesh, geometry, geomToMesh );
 
 			if ( result ) {
 
@@ -314,7 +314,7 @@ export default class MeshBVH {
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			result = shapecastBuffer( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
+			result = shapecast( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
 
 			if ( result ) {
 
diff --git a/src/castFunctions.js b/src/castFunctions.js
index 48381515f..052f5dc57 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -14,7 +14,7 @@ const boundingBox = new Box3();
 const boxIntersection = new Vector3();
 const xyzFields = [ 'x', 'y', 'z' ];
 
-export function raycastBuffer( nodeIndex32, mesh, raycaster, ray, intersects ) {
+export function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
 
 	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -29,16 +29,16 @@ export function raycastBuffer( nodeIndex32, mesh, raycaster, ray, intersects ) {
 	} else {
 
 		const leftIndex = nodeIndex32 + 8;
-		if ( intersectRayBuffer( leftIndex, float32Array, ray, boxIntersection ) ) {
+		if ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycastBuffer( leftIndex, mesh, raycaster, ray, intersects );
+			raycast( leftIndex, mesh, raycaster, ray, intersects );
 
 		}
 
 		const rightIndex = uint32Array[ nodeIndex32 + 6 ];
-		if ( intersectRayBuffer( rightIndex, float32Array, ray, boxIntersection ) ) {
+		if ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycastBuffer( rightIndex, mesh, raycaster, ray, intersects );
+			raycast( rightIndex, mesh, raycaster, ray, intersects );
 
 		}
 
@@ -46,7 +46,7 @@ export function raycastBuffer( nodeIndex32, mesh, raycaster, ray, intersects ) {
 
 }
 
-export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
+export function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {
 
 	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -80,8 +80,8 @@ export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
 
 		}
 
-		const c1Intersection = intersectRayBuffer( c1, float32Array, ray, boxIntersection );
-		const c1Result = c1Intersection ? raycastFirstBuffer( c1, mesh, raycaster, ray ) : null;
+		const c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );
+		const c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;
 
 		// if we got an intersection in the first node and it's closer than the second node's bounding
 		// box, we don't need to consider the second node because it couldn't possibly be a better result
@@ -103,8 +103,8 @@ export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
 
 		// either there was no intersection in the first node, or there could still be a closer
 		// intersection in the second, so check the second node and then take the better of the two
-		const c2Intersection = intersectRayBuffer( c2, float32Array, ray, boxIntersection );
-		const c2Result = c2Intersection ? raycastFirstBuffer( c2, mesh, raycaster, ray ) : null;
+		const c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );
+		const c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;
 
 		if ( c1Result && c2Result ) {
 
@@ -120,7 +120,7 @@ export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
 
 }
 
-export const shapecastBuffer = ( function () {
+export const shapecast = ( function () {
 
 	const _triangle = new SeparatingAxisTriangle();
 	const _cachedBox1 = new Box3();
@@ -155,7 +155,7 @@ export const shapecastBuffer = ( function () {
 
 	}
 
-	return function shapecastBuffer( nodeIndex32,
+	return function shapecast( nodeIndex32,
 		mesh,
 		intersectsBoundsFunc,
 		intersectsTriangleFunc = null,
@@ -168,7 +168,7 @@ export const shapecastBuffer = ( function () {
 
 		// Define these inside the function so it has access to the local variables needed
 		// when converting to the buffer equivalents
-		function getLeftOffsetBuffer( nodeIndex32 ) {
+		function getLeftOffset( nodeIndex32 ) {
 
 			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -184,7 +184,7 @@ export const shapecastBuffer = ( function () {
 
 		}
 
-		function getRightEndOffsetBuffer( nodeIndex32 ) {
+		function getRightEndOffset( nodeIndex32 ) {
 
 			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -227,8 +227,8 @@ export const shapecastBuffer = ( function () {
 				box2 = cachedBox2;
 
 				// bounding data is not offset
-				arrayToBoxBuffer( c1, float32Array, box1 );
-				arrayToBoxBuffer( c2, float32Array, box2 );
+				arrayToBox( c1, float32Array, box1 );
+				arrayToBox( c2, float32Array, box2 );
 
 				score1 = nodeScoreFunc( box1 );
 				score2 = nodeScoreFunc( box2 );
@@ -253,7 +253,7 @@ export const shapecastBuffer = ( function () {
 			if ( ! box1 ) {
 
 				box1 = cachedBox1;
-				arrayToBoxBuffer( c1, float32Array, box1 );
+				arrayToBox( c1, float32Array, box1 );
 
 			}
 
@@ -264,8 +264,8 @@ export const shapecastBuffer = ( function () {
 			if ( c1Intersection === CONTAINED ) {
 
 				const geometry = mesh.geometry;
-				const offset = getLeftOffsetBuffer( c1 );
-				const end = getRightEndOffsetBuffer( c1 );
+				const offset = getLeftOffset( c1 );
+				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
 				c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
@@ -274,7 +274,7 @@ export const shapecastBuffer = ( function () {
 
 				c1StopTraversal =
 					c1Intersection &&
-					shapecastBuffer(
+					shapecast(
 						c1,
 						mesh,
 						intersectsBoundsFunc,
@@ -293,7 +293,7 @@ export const shapecastBuffer = ( function () {
 			// Check box 2 intersection
 			// cached box2 will have been overwritten by previous traversal
 			box2 = cachedBox2;
-			arrayToBoxBuffer( c2, float32Array, box2 );
+			arrayToBox( c2, float32Array, box2 );
 
 			const isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );
 			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
@@ -302,8 +302,8 @@ export const shapecastBuffer = ( function () {
 			if ( c2Intersection === CONTAINED ) {
 
 				const geometry = mesh.geometry;
-				const offset = getLeftOffsetBuffer( c2 );
-				const end = getRightEndOffsetBuffer( c2 );
+				const offset = getLeftOffset( c2 );
+				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
 				c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
@@ -312,7 +312,7 @@ export const shapecastBuffer = ( function () {
 
 				c2StopTraversal =
 					c2Intersection &&
-					shapecastBuffer(
+					shapecast(
 						c2,
 						mesh,
 						intersectsBoundsFunc,
@@ -336,7 +336,7 @@ export const shapecastBuffer = ( function () {
 
 } )();
 
-export const intersectsGeometryBuffer = ( function () {
+export const intersectsGeometry = ( function () {
 
 	const triangle = new SeparatingAxisTriangle();
 	const triangle2 = new SeparatingAxisTriangle();
@@ -346,7 +346,7 @@ export const intersectsGeometryBuffer = ( function () {
 	const obb = new OrientedBox();
 	const obb2 = new OrientedBox();
 
-	return function intersectsGeometryBuffer( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
+	return function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
 
 		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -384,7 +384,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 			if ( geometry.boundsTree ) {
 
-				arrayToBoxBuffer( nodeIndex32, float32Array, obb2 );
+				arrayToBox( nodeIndex32, float32Array, obb2 );
 				obb2.matrix.copy( invertedMat );
 				obb2.update();
 
@@ -449,17 +449,17 @@ export const intersectsGeometryBuffer = ( function () {
 			const left = nodeIndex32 + 8;
 			const right = uint32Array[ nodeIndex32 + 6 ];
 
-			arrayToBoxBuffer( left, float32Array, boundingBox );
+			arrayToBox( left, float32Array, boundingBox );
 			const leftIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometryBuffer( left, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );
 
 			if ( leftIntersection ) return true;
 
-			arrayToBoxBuffer( right, float32Array, boundingBox );
+			arrayToBox( right, float32Array, boundingBox );
 			const rightIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometryBuffer( right, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );
 
 			if ( rightIntersection ) return true;
 
@@ -471,9 +471,9 @@ export const intersectsGeometryBuffer = ( function () {
 
 } )();
 
-function intersectRayBuffer( nodeIndex32, array, ray, target ) {
+function intersectRay( nodeIndex32, array, ray, target ) {
 
-	arrayToBoxBuffer( nodeIndex32, array, boundingBox );
+	arrayToBox( nodeIndex32, array, boundingBox );
 	return ray.intersectBox( boundingBox, target );
 
 }
@@ -513,7 +513,7 @@ export function clearBuffer() {
 
 }
 
-function arrayToBoxBuffer( nodeIndex32, array, target ) {
+function arrayToBox( nodeIndex32, array, target ) {
 
 	target.min.x = array[ nodeIndex32 ];
 	target.min.y = array[ nodeIndex32 + 1 ];
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index 41e02e77d..7eb002650 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -16,7 +16,7 @@ const boundingBox = new Box3();
 const boxIntersection = new Vector3();
 const xyzFields = [ 'x', 'y', 'z' ];
 
-export function raycastBuffer( nodeIndex32, mesh, raycaster, ray, intersects ) {
+export function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
 
 	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -31,16 +31,16 @@ export function raycastBuffer( nodeIndex32, mesh, raycaster, ray, intersects ) {
 	} else {
 
 		const leftIndex = LEFT_NODE( nodeIndex32 );
-		if ( intersectRayBuffer( leftIndex, float32Array, ray, boxIntersection ) ) {
+		if ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycastBuffer( leftIndex, mesh, raycaster, ray, intersects );
+			raycast( leftIndex, mesh, raycaster, ray, intersects );
 
 		}
 
 		const rightIndex = RIGHT_NODE( nodeIndex32 );
-		if ( intersectRayBuffer( rightIndex, float32Array, ray, boxIntersection ) ) {
+		if ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycastBuffer( rightIndex, mesh, raycaster, ray, intersects );
+			raycast( rightIndex, mesh, raycaster, ray, intersects );
 
 		}
 
@@ -48,7 +48,7 @@ export function raycastBuffer( nodeIndex32, mesh, raycaster, ray, intersects ) {
 
 }
 
-export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
+export function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {
 
 	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -82,8 +82,8 @@ export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
 
 		}
 
-		const c1Intersection = intersectRayBuffer( c1, float32Array, ray, boxIntersection );
-		const c1Result = c1Intersection ? raycastFirstBuffer( c1, mesh, raycaster, ray ) : null;
+		const c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );
+		const c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;
 
 		// if we got an intersection in the first node and it's closer than the second node's bounding
 		// box, we don't need to consider the second node because it couldn't possibly be a better result
@@ -105,8 +105,8 @@ export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
 
 		// either there was no intersection in the first node, or there could still be a closer
 		// intersection in the second, so check the second node and then take the better of the two
-		const c2Intersection = intersectRayBuffer( c2, float32Array, ray, boxIntersection );
-		const c2Result = c2Intersection ? raycastFirstBuffer( c2, mesh, raycaster, ray ) : null;
+		const c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );
+		const c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;
 
 		if ( c1Result && c2Result ) {
 
@@ -122,7 +122,7 @@ export function raycastFirstBuffer( nodeIndex32, mesh, raycaster, ray ) {
 
 }
 
-export const shapecastBuffer = ( function () {
+export const shapecast = ( function () {
 
 	const _triangle = new SeparatingAxisTriangle();
 	const _cachedBox1 = new Box3();
@@ -157,7 +157,7 @@ export const shapecastBuffer = ( function () {
 
 	}
 
-	return function shapecastBuffer( nodeIndex32,
+	return function shapecast( nodeIndex32,
 		mesh,
 		intersectsBoundsFunc,
 		intersectsTriangleFunc = null,
@@ -170,7 +170,7 @@ export const shapecastBuffer = ( function () {
 
 		// Define these inside the function so it has access to the local variables needed
 		// when converting to the buffer equivalents
-		function getLeftOffsetBuffer( nodeIndex32 ) {
+		function getLeftOffset( nodeIndex32 ) {
 
 			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -186,7 +186,7 @@ export const shapecastBuffer = ( function () {
 
 		}
 
-		function getRightEndOffsetBuffer( nodeIndex32 ) {
+		function getRightEndOffset( nodeIndex32 ) {
 
 			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -229,8 +229,8 @@ export const shapecastBuffer = ( function () {
 				box2 = cachedBox2;
 
 				// bounding data is not offset
-				arrayToBoxBuffer( BOUNDING_DATA_INDEX( c1 ), float32Array, box1 );
-				arrayToBoxBuffer( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
+				arrayToBox( BOUNDING_DATA_INDEX( c1 ), float32Array, box1 );
+				arrayToBox( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
 
 				score1 = nodeScoreFunc( box1 );
 				score2 = nodeScoreFunc( box2 );
@@ -255,7 +255,7 @@ export const shapecastBuffer = ( function () {
 			if ( ! box1 ) {
 
 				box1 = cachedBox1;
-				arrayToBoxBuffer( BOUNDING_DATA_INDEX( c1 ), float32Array, box1 );
+				arrayToBox( BOUNDING_DATA_INDEX( c1 ), float32Array, box1 );
 
 			}
 
@@ -266,8 +266,8 @@ export const shapecastBuffer = ( function () {
 			if ( c1Intersection === CONTAINED ) {
 
 				const geometry = mesh.geometry;
-				const offset = getLeftOffsetBuffer( c1 );
-				const end = getRightEndOffsetBuffer( c1 );
+				const offset = getLeftOffset( c1 );
+				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
 				c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
@@ -276,7 +276,7 @@ export const shapecastBuffer = ( function () {
 
 				c1StopTraversal =
 					c1Intersection &&
-					shapecastBuffer(
+					shapecast(
 						c1,
 						mesh,
 						intersectsBoundsFunc,
@@ -295,7 +295,7 @@ export const shapecastBuffer = ( function () {
 			// Check box 2 intersection
 			// cached box2 will have been overwritten by previous traversal
 			box2 = cachedBox2;
-			arrayToBoxBuffer( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
+			arrayToBox( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
 
 			const isC2Leaf = IS_LEAF( c2 );
 			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
@@ -304,8 +304,8 @@ export const shapecastBuffer = ( function () {
 			if ( c2Intersection === CONTAINED ) {
 
 				const geometry = mesh.geometry;
-				const offset = getLeftOffsetBuffer( c2 );
-				const end = getRightEndOffsetBuffer( c2 );
+				const offset = getLeftOffset( c2 );
+				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
 				c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
@@ -314,7 +314,7 @@ export const shapecastBuffer = ( function () {
 
 				c2StopTraversal =
 					c2Intersection &&
-					shapecastBuffer(
+					shapecast(
 						c2,
 						mesh,
 						intersectsBoundsFunc,
@@ -338,7 +338,7 @@ export const shapecastBuffer = ( function () {
 
 } )();
 
-export const intersectsGeometryBuffer = ( function () {
+export const intersectsGeometry = ( function () {
 
 	const triangle = new SeparatingAxisTriangle();
 	const triangle2 = new SeparatingAxisTriangle();
@@ -348,7 +348,7 @@ export const intersectsGeometryBuffer = ( function () {
 	const obb = new OrientedBox();
 	const obb2 = new OrientedBox();
 
-	return function intersectsGeometryBuffer( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
+	return function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
 
 		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -386,7 +386,7 @@ export const intersectsGeometryBuffer = ( function () {
 
 			if ( geometry.boundsTree ) {
 
-				arrayToBoxBuffer( BOUNDING_DATA_INDEX( nodeIndex32 ), float32Array, obb2 );
+				arrayToBox( BOUNDING_DATA_INDEX( nodeIndex32 ), float32Array, obb2 );
 				obb2.matrix.copy( invertedMat );
 				obb2.update();
 
@@ -451,17 +451,17 @@ export const intersectsGeometryBuffer = ( function () {
 			const left = nodeIndex32 + 8;
 			const right = uint32Array[ nodeIndex32 + 6 ];
 
-			arrayToBoxBuffer( BOUNDING_DATA_INDEX( left ), float32Array, boundingBox );
+			arrayToBox( BOUNDING_DATA_INDEX( left ), float32Array, boundingBox );
 			const leftIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometryBuffer( left, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );
 
 			if ( leftIntersection ) return true;
 
-			arrayToBoxBuffer( BOUNDING_DATA_INDEX( right ), float32Array, boundingBox );
+			arrayToBox( BOUNDING_DATA_INDEX( right ), float32Array, boundingBox );
 			const rightIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometryBuffer( right, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );
 
 			if ( rightIntersection ) return true;
 
@@ -473,9 +473,9 @@ export const intersectsGeometryBuffer = ( function () {
 
 } )();
 
-function intersectRayBuffer( nodeIndex32, array, ray, target ) {
+function intersectRay( nodeIndex32, array, ray, target ) {
 
-	arrayToBoxBuffer( nodeIndex32, array, boundingBox );
+	arrayToBox( nodeIndex32, array, boundingBox );
 	return ray.intersectBox( boundingBox, target );
 
 }
@@ -515,7 +515,7 @@ export function clearBuffer() {
 
 }
 
-function arrayToBoxBuffer( nodeIndex32, array, target ) {
+function arrayToBox( nodeIndex32, array, target ) {
 
 	target.min.x = array[ nodeIndex32 ];
 	target.min.y = array[ nodeIndex32 + 1 ];

From 5e77273111807a050c9409c747698434c42e83ed Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 21:04:02 -0800
Subject: [PATCH 047/139] Update README.md

---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.md b/README.md
index 08baa3456..d477b770b 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,8 @@ Casting 500 rays against an 80,000 polygon model at 60fps!
 
 [Shape intersection demo](https://gkjohnson.github.io/three-mesh-bvh/example/bundle/shapecast.html)
 
+[Sculpting demo](https://gkjohnson.github.io/three-mesh-bvh/example/bundle/sculpt.html)
+
 [Triangle painting demo](https://gkjohnson.github.io/three-mesh-bvh/example/bundle/collectTriangles.html)
 
 [Distance comparison demo](https://gkjohnson.github.io/three-mesh-bvh/example/bundle/distancecast.html)
@@ -352,6 +354,14 @@ A generalized cast function that can be used to implement intersection logic for
 
 `orderNodesFunc` takes the axis aligned bounding box representing an internal node local to the bvh and returns a score or distance representing the distance to the shape being intersected with. The shape with the lowest score is traversed first.
 
+### .refit
+
+```js
+refit( geometry : BufferGeometry ) : void
+```
+
+Refit the node bounds to the current triangle positions. This is quicker than regenerating a new BVH but will not be optimal after significant changes to the vertice.
+
 ## SerializedBVH
 
 ### .roots

From 3d1e81cd82d7917892d3517b8bd5ee642f6eb2c7 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 22:02:27 -0800
Subject: [PATCH 048/139] update sculpt brush

---
 example/sculpt.js | 132 +++++++++++++++++++++++++++-------------------
 1 file changed, 78 insertions(+), 54 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index f1aeafd0d..95a8689ab 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -18,11 +18,6 @@ THREE.Mesh.prototype.raycast = acceleratedRaycast;
 THREE.BufferGeometry.prototype.computeBoundsTree = computeBoundsTree;
 THREE.BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
 
-// TODO:
-// - Average brush orientation from multiple points
-// - Better brush strokes
-// - Generate new BVH in background and do refit after transfer
-
 let stats;
 let scene, camera, renderer, controls;
 let targetMesh, brush, bvhHelper;
@@ -280,44 +275,41 @@ function render() {
 			brush.quaternion.setFromUnitVectors( normalZ, hit.face.normal );
 			controls.enabled = false;
 
-			if ( ( mouseState || lastMouseState ) && mouse.distanceTo( lastMouse ) > 0.001 ) {
-
-				const inverseMatrix = new THREE.Matrix4();
-				inverseMatrix.copy( targetMesh.matrixWorld ).invert();
 
-				const sphere = new THREE.Sphere();
-				sphere.center.copy( hit.point ).applyMatrix4( inverseMatrix );
-				sphere.radius = params.size;
+			const inverseMatrix = new THREE.Matrix4();
+			inverseMatrix.copy( targetMesh.matrixWorld ).invert();
 
-				const indices = [];
-				const tempVec = new THREE.Vector3();
-				const tempVec2 = new THREE.Vector3();
-				const tempVec3 = new THREE.Vector3();
-				const bvh = targetMesh.geometry.boundsTree;
-				bvh.shapecast(
-					targetMesh,
-					box => {
+			const sphere = new THREE.Sphere();
+			sphere.center.copy( hit.point ).applyMatrix4( inverseMatrix );
+			sphere.radius = params.size;
 
-						const intersects = sphere.intersectsBox( box );
-						const { min, max } = box;
-						if ( intersects ) {
+			const indices = [];
+			const tempVec = new THREE.Vector3();
+			const tempVec2 = new THREE.Vector3();
+			const normal = new THREE.Vector3();
+			const bvh = targetMesh.geometry.boundsTree;
+			bvh.shapecast(
+				targetMesh,
+				box => {
 
-							for ( let x = 0; x <= 1; x ++ ) {
+					const intersects = sphere.intersectsBox( box );
+					const { min, max } = box;
+					if ( intersects ) {
 
-								for ( let y = 0; y <= 1; y ++ ) {
+						for ( let x = 0; x <= 1; x ++ ) {
 
-									for ( let z = 0; z <= 1; z ++ ) {
+							for ( let y = 0; y <= 1; y ++ ) {
 
-										tempVec.set(
-											x === 0 ? min.x : max.x,
-											y === 0 ? min.y : max.y,
-											z === 0 ? min.z : max.z
-										);
-										if ( ! sphere.containsPoint( tempVec ) ) {
+								for ( let z = 0; z <= 1; z ++ ) {
 
-											return INTERSECTED;
+									tempVec.set(
+										x === 0 ? min.x : max.x,
+										y === 0 ? min.y : max.y,
+										z === 0 ? min.z : max.z
+									);
+									if ( ! sphere.containsPoint( tempVec ) ) {
 
-										}
+										return INTERSECTED;
 
 									}
 
@@ -325,34 +317,62 @@ function render() {
 
 							}
 
-							return CONTAINED;
-
 						}
 
-						return intersects ? INTERSECTED : NOT_INTERSECTED;
+						return CONTAINED;
 
-					},
-					( tri, a, b, c, contained ) => {
+					}
 
-						if ( contained || tri.intersectsSphere( sphere ) ) {
+					return intersects ? INTERSECTED : NOT_INTERSECTED;
 
-							indices.push( a, b, c );
+				},
+				( tri, a, b, c, contained ) => {
 
-						}
+					if ( contained || tri.intersectsSphere( sphere ) ) {
 
-						return false;
+						indices.push( a, b, c );
 
 					}
-				);
 
-				const indexToTriangles = {};
-				const indexAttr = targetMesh.geometry.index;
-				const posAttr = targetMesh.geometry.attributes.position;
-				const normalAttr = targetMesh.geometry.attributes.normal;
-				const indexSet = new Set( indices );
+					return false;
 
-				tempVec2.copy( hit.point ).applyMatrix4( inverseMatrix );
-				tempVec3.copy( hit.face.normal ).transformDirection( targetMesh.matrixWorld );
+				}
+			);
+			const indexAttr = targetMesh.geometry.index;
+			const posAttr = targetMesh.geometry.attributes.position;
+			const normalAttr = targetMesh.geometry.attributes.normal;
+			const indexSet = new Set( indices );
+			tempVec2.copy( hit.point ).applyMatrix4( inverseMatrix );
+			indexSet.forEach( i => {
+
+				const index = indexAttr.getX( i );
+				tempVec.fromBufferAttribute( posAttr, index );
+
+				const dist = tempVec.distanceTo( tempVec2 );
+				if ( dist > params.size ) {
+
+					return;
+
+				}
+
+				tempVec.fromBufferAttribute( normalAttr, index );
+				normal.add( tempVec );
+
+			} );
+			normal.normalize();
+			brush.quaternion.setFromUnitVectors( normalZ, normal );
+
+			const dx = ( mouse.x - lastMouse.x ) * window.innerWidth * window.devicePixelRatio;
+			const dy = ( mouse.y - lastMouse.y ) * window.innerHeight * window.devicePixelRatio;
+			const dist = Math.sqrt( dx * dx + dy * dy );
+
+			if ( ! ( mouseState || lastMouseState ) ) {
+
+				lastMouse.copy( mouse );
+
+			} else if ( dist > params.size * 50 ) {
+
+				const indexToTriangles = {};
 				indexSet.forEach( i => {
 
 					const index = indexAttr.getX( i );
@@ -371,9 +391,13 @@ function render() {
 
 						intensity = Math.min( intensity, 0.1 );
 
+					} else {
+
+						intensity *= 0.5;
+
 					}
 
-					tempVec.addScaledVector( tempVec3, intensity * params.intensity );
+					tempVec.addScaledVector( normal, intensity * params.intensity );
 					posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 
 					let arr = indexToTriangles[ index ];
@@ -421,7 +445,7 @@ function render() {
 					bvhHelper.update();
 
 				}
-
+				lastMouse.copy( mouse );
 
 			}
 
@@ -429,13 +453,13 @@ function render() {
 
 			controls.enabled = true;
 			brush.visible = false;
+			lastMouse.copy( mouse );
 
 		}
 
 	}
 
 	lastMouseState = mouseState;
-	lastMouse.copy( mouse );
 
 	renderer.render( scene, camera );
 	stats.end();

From a6d8a8f276cf6e414fa6a511229acff3346a05b0 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 22:12:17 -0800
Subject: [PATCH 049/139] Update CHANGELOG.md

---
 CHANGELOG.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e352084d..4e4923f46 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
+### Added
+- `MeshBVH.refit` function to refit the bounds to modified vertices.
+
 ### Changed
 - Removed `src/worker/generateAsync.js` function. Use `GenerateMeshBVHWorker` instead.
 - Use `type: module` in package.json to enable use of es6 modules in node.

From c5a67d009fadcd1cfc640f56a08e2e5fb8d9418f Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 22:33:17 -0800
Subject: [PATCH 050/139] remove wireframe

---
 example/sculpt.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 95a8689ab..fea0199da 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -62,7 +62,6 @@ function reset() {
 	targetMesh = new THREE.Mesh(
 		geometry,
 		new THREE.MeshMatcapMaterial( {
-			wireframe: true,
 			flatShading: params.flatShading,
 			matcap
 		} )

From 44def87aeee9c1a10ac621dcbe56be25c697a249 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 4 Mar 2021 23:33:51 -0800
Subject: [PATCH 051/139] add sculpt build

---
 example/bundle/sculpt.493e9c78.js | 573 ++++++++++++++++++++++++++++++
 example/bundle/sculpt.html        |   1 +
 2 files changed, 574 insertions(+)
 create mode 100644 example/bundle/sculpt.493e9c78.js
 create mode 100644 example/bundle/sculpt.html

diff --git a/example/bundle/sculpt.493e9c78.js b/example/bundle/sculpt.493e9c78.js
new file mode 100644
index 000000000..6238e6f2d
--- /dev/null
+++ b/example/bundle/sculpt.493e9c78.js
@@ -0,0 +1,573 @@
+parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcelRequire,u="function"==typeof require&&require;function f(t,n){if(!r[t]){if(!e[t]){var i="function"==typeof parcelRequire&&parcelRequire;if(!n&&i)return i(t,!0);if(o)return o(t,!0);if(u&&"string"==typeof t)return u(t);var c=new Error("Cannot find module '"+t+"'");throw c.code="MODULE_NOT_FOUND",c}p.resolve=function(r){return e[t][1][r]||r},p.cache={};var l=r[t]=new f.Module(t);e[t][0].call(l.exports,p,l,l.exports,this)}return r[t].exports;function p(e){return f(p.resolve(e))}}f.isParcelRequire=!0,f.Module=function(e){this.id=e,this.bundle=f,this.exports={}},f.modules=e,f.cache=r,f.parent=o,f.register=function(r,t){e[r]=[function(e,r){r.exports=t},{}]};for(var c=0;c<t.length;c++)try{f(t[c])}catch(e){i||(i=e)}if(t.length){var l=f(t[t.length-1]);"object"==typeof exports&&"undefined"!=typeof module?module.exports=l:"function"==typeof define&&define.amd?define(function(){return l}):n&&(this[n]=l)}if(parcelRequire=f,i)throw i;return f}({"qf4T":[function(require,module,exports) {
+
+var e=module.exports="undefined"!=typeof window&&window.Math==Math?window:"undefined"!=typeof self&&self.Math==Math?self:Function("return this")();"number"==typeof __g&&(__g=e);
+},{}],"ss9A":[function(require,module,exports) {
+var e=module.exports={version:"2.6.11"};"number"==typeof __e&&(__e=e);
+},{}],"M7z6":[function(require,module,exports) {
+module.exports=function(o){return"object"==typeof o?null!==o:"function"==typeof o};
+},{}],"eT53":[function(require,module,exports) {
+var r=require("./_is-object");module.exports=function(e){if(!r(e))throw TypeError(e+" is not an object!");return e};
+},{"./_is-object":"M7z6"}],"BXiR":[function(require,module,exports) {
+module.exports=function(r){try{return!!r()}catch(t){return!0}};
+},{}],"P9Ib":[function(require,module,exports) {
+module.exports=!require("./_fails")(function(){return 7!=Object.defineProperty({},"a",{get:function(){return 7}}).a});
+},{"./_fails":"BXiR"}],"vZ6E":[function(require,module,exports) {
+var e=require("./_is-object"),r=require("./_global").document,t=e(r)&&e(r.createElement);module.exports=function(e){return t?r.createElement(e):{}};
+},{"./_is-object":"M7z6","./_global":"qf4T"}],"o6Gq":[function(require,module,exports) {
+module.exports=!require("./_descriptors")&&!require("./_fails")(function(){return 7!=Object.defineProperty(require("./_dom-create")("div"),"a",{get:function(){return 7}}).a});
+},{"./_descriptors":"P9Ib","./_fails":"BXiR","./_dom-create":"vZ6E"}],"y37I":[function(require,module,exports) {
+var t=require("./_is-object");module.exports=function(r,e){if(!t(r))return r;var o,n;if(e&&"function"==typeof(o=r.toString)&&!t(n=o.call(r)))return n;if("function"==typeof(o=r.valueOf)&&!t(n=o.call(r)))return n;if(!e&&"function"==typeof(o=r.toString)&&!t(n=o.call(r)))return n;throw TypeError("Can't convert object to primitive value")};
+},{"./_is-object":"M7z6"}],"nw8e":[function(require,module,exports) {
+var e=require("./_an-object"),r=require("./_ie8-dom-define"),t=require("./_to-primitive"),i=Object.defineProperty;exports.f=require("./_descriptors")?Object.defineProperty:function(o,n,u){if(e(o),n=t(n,!0),e(u),r)try{return i(o,n,u)}catch(c){}if("get"in u||"set"in u)throw TypeError("Accessors not supported!");return"value"in u&&(o[n]=u.value),o};
+},{"./_an-object":"eT53","./_ie8-dom-define":"o6Gq","./_to-primitive":"y37I","./_descriptors":"P9Ib"}],"uJ6d":[function(require,module,exports) {
+module.exports=function(e,r){return{enumerable:!(1&e),configurable:!(2&e),writable:!(4&e),value:r}};
+},{}],"NXbe":[function(require,module,exports) {
+var r=require("./_object-dp"),e=require("./_property-desc");module.exports=require("./_descriptors")?function(t,u,o){return r.f(t,u,e(1,o))}:function(r,e,t){return r[e]=t,r};
+},{"./_object-dp":"nw8e","./_property-desc":"uJ6d","./_descriptors":"P9Ib"}],"uHgd":[function(require,module,exports) {
+var r={}.hasOwnProperty;module.exports=function(e,n){return r.call(e,n)};
+},{}],"U49f":[function(require,module,exports) {
+var o=0,t=Math.random();module.exports=function(n){return"Symbol(".concat(void 0===n?"":n,")_",(++o+t).toString(36))};
+},{}],"H21C":[function(require,module,exports) {
+module.exports=!1;
+},{}],"zGcK":[function(require,module,exports) {
+
+var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2019 Denis Pushkarev (zloirock.ru)"});
+},{"./_core":"ss9A","./_global":"qf4T","./_library":"H21C"}],"d5RU":[function(require,module,exports) {
+module.exports=require("./_shared")("native-function-to-string",Function.toString);
+},{"./_shared":"zGcK"}],"PHot":[function(require,module,exports) {
+
+var e=require("./_global"),r=require("./_hide"),t=require("./_has"),i=require("./_uid")("src"),n=require("./_function-to-string"),o="toString",u=(""+n).split(o);require("./_core").inspectSource=function(e){return n.call(e)},(module.exports=function(n,o,c,l){var s="function"==typeof c;s&&(t(c,"name")||r(c,"name",o)),n[o]!==c&&(s&&(t(c,i)||r(c,i,n[o]?""+n[o]:u.join(String(o)))),n===e?n[o]=c:l?n[o]?n[o]=c:r(n,o,c):(delete n[o],r(n,o,c)))})(Function.prototype,o,function(){return"function"==typeof this&&this[i]||n.call(this)});
+},{"./_global":"qf4T","./_hide":"NXbe","./_has":"uHgd","./_uid":"U49f","./_function-to-string":"d5RU","./_core":"ss9A"}],"kYjc":[function(require,module,exports) {
+module.exports=function(o){if("function"!=typeof o)throw TypeError(o+" is not a function!");return o};
+},{}],"E3Kh":[function(require,module,exports) {
+var r=require("./_a-function");module.exports=function(n,t,u){if(r(n),void 0===t)return n;switch(u){case 1:return function(r){return n.call(t,r)};case 2:return function(r,u){return n.call(t,r,u)};case 3:return function(r,u,e){return n.call(t,r,u,e)}}return function(){return n.apply(t,arguments)}};
+},{"./_a-function":"kYjc"}],"izCb":[function(require,module,exports) {
+
+var e=require("./_global"),r=require("./_core"),o=require("./_hide"),i=require("./_redefine"),u=require("./_ctx"),n="prototype",t=function(c,f,l){var q,_,a,d,p=c&t.F,v=c&t.G,F=c&t.S,x=c&t.P,y=c&t.B,B=v?e:F?e[f]||(e[f]={}):(e[f]||{})[n],G=v?r:r[f]||(r[f]={}),P=G[n]||(G[n]={});for(q in v&&(l=f),l)a=((_=!p&&B&&void 0!==B[q])?B:l)[q],d=y&&_?u(a,e):x&&"function"==typeof a?u(Function.call,a):a,B&&i(B,q,a,c&t.U),G[q]!=a&&o(G,q,d),x&&P[q]!=a&&(P[q]=a)};e.core=r,t.F=1,t.G=2,t.S=4,t.P=8,t.B=16,t.W=32,t.U=64,t.R=128,module.exports=t;
+},{"./_global":"qf4T","./_core":"ss9A","./_hide":"NXbe","./_redefine":"PHot","./_ctx":"E3Kh"}],"BjjL":[function(require,module,exports) {
+module.exports=function(o){if(null==o)throw TypeError("Can't call method on  "+o);return o};
+},{}],"rfVX":[function(require,module,exports) {
+var e=require("./_defined");module.exports=function(r){return Object(e(r))};
+},{"./_defined":"BjjL"}],"yjVO":[function(require,module,exports) {
+var o=Math.ceil,r=Math.floor;module.exports=function(t){return isNaN(t=+t)?0:(t>0?r:o)(t)};
+},{}],"vfEH":[function(require,module,exports) {
+var e=require("./_to-integer"),r=Math.max,t=Math.min;module.exports=function(n,a){return(n=e(n))<0?r(n+a,0):t(n,a)};
+},{"./_to-integer":"yjVO"}],"dJBs":[function(require,module,exports) {
+var e=require("./_to-integer"),r=Math.min;module.exports=function(t){return t>0?r(e(t),9007199254740991):0};
+},{"./_to-integer":"yjVO"}],"Oppn":[function(require,module,exports) {
+"use strict";var e=require("./_to-object"),t=require("./_to-absolute-index"),i=require("./_to-length");module.exports=[].copyWithin||function(r,o){var n=e(this),u=i(n.length),h=t(r,u),l=t(o,u),d=arguments.length>2?arguments[2]:void 0,s=Math.min((void 0===d?u:t(d,u))-l,u-h),a=1;for(l<h&&h<l+s&&(a=-1,l+=s-1,h+=s-1);s-- >0;)l in n?n[h]=n[l]:delete n[h],h+=a,l+=a;return n};
+},{"./_to-object":"rfVX","./_to-absolute-index":"vfEH","./_to-length":"dJBs"}],"AIP1":[function(require,module,exports) {
+var e=require("./_shared")("wks"),r=require("./_uid"),o=require("./_global").Symbol,u="function"==typeof o,i=module.exports=function(i){return e[i]||(e[i]=u&&o[i]||(u?o:r)("Symbol."+i))};i.store=e;
+},{"./_shared":"zGcK","./_uid":"U49f","./_global":"qf4T"}],"Z7eD":[function(require,module,exports) {
+var e=require("./_wks")("unscopables"),r=Array.prototype;null==r[e]&&require("./_hide")(r,e,{}),module.exports=function(o){r[e][o]=!0};
+},{"./_wks":"AIP1","./_hide":"NXbe"}],"tWTB":[function(require,module,exports) {
+var r=require("./_export");r(r.P,"Array",{copyWithin:require("./_array-copy-within")}),require("./_add-to-unscopables")("copyWithin");
+},{"./_export":"izCb","./_array-copy-within":"Oppn","./_add-to-unscopables":"Z7eD"}],"hphS":[function(require,module,exports) {
+"use strict";var e=require("./_to-object"),t=require("./_to-absolute-index"),r=require("./_to-length");module.exports=function(o){for(var i=e(this),u=r(i.length),n=arguments.length,d=t(n>1?arguments[1]:void 0,u),l=n>2?arguments[2]:void 0,s=void 0===l?u:t(l,u);s>d;)i[d++]=o;return i};
+},{"./_to-object":"rfVX","./_to-absolute-index":"vfEH","./_to-length":"dJBs"}],"hUQ6":[function(require,module,exports) {
+var r=require("./_export");r(r.P,"Array",{fill:require("./_array-fill")}),require("./_add-to-unscopables")("fill");
+},{"./_export":"izCb","./_array-fill":"hphS","./_add-to-unscopables":"Z7eD"}],"Z5df":[function(require,module,exports) {
+var r={}.toString;module.exports=function(t){return r.call(t).slice(8,-1)};
+},{}],"nGau":[function(require,module,exports) {
+var e=require("./_cof");module.exports=Object("z").propertyIsEnumerable(0)?Object:function(r){return"String"==e(r)?r.split(""):Object(r)};
+},{"./_cof":"Z5df"}],"JTrm":[function(require,module,exports) {
+var r=require("./_cof");module.exports=Array.isArray||function(e){return"Array"==r(e)};
+},{"./_cof":"Z5df"}],"NNbH":[function(require,module,exports) {
+var r=require("./_is-object"),e=require("./_is-array"),o=require("./_wks")("species");module.exports=function(i){var t;return e(i)&&("function"!=typeof(t=i.constructor)||t!==Array&&!e(t.prototype)||(t=void 0),r(t)&&null===(t=t[o])&&(t=void 0)),void 0===t?Array:t};
+},{"./_is-object":"M7z6","./_is-array":"JTrm","./_wks":"AIP1"}],"igas":[function(require,module,exports) {
+var r=require("./_array-species-constructor");module.exports=function(e,n){return new(r(e))(n)};
+},{"./_array-species-constructor":"NNbH"}],"AuPh":[function(require,module,exports) {
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i.preventDefault(),t=i.clientX,A.addClass(e.__closeButton,oe.CLASS_DRAG),A.bind(window,"mousemove",n),A.bind(window,"mouseup",o),!1}e.__resize_handle=document.createElement("div"),i.extend(e.__resize_handle.style,{width:"6px",marginLeft:"-3px",height:"200px",cursor:"ew-resize",position:"absolute"}),A.bind(e.__resize_handle,"mousedown",r),A.bind(e.__closeButton,"mousedown",r),e.domElement.insertBefore(e.__resize_handle,e.domElement.firstElementChild)}function fe(e,t){e.domElement.style.width=t+"px",e.__save_row&&e.autoPlace&&(e.__save_row.style.width=t+"px"),e.__closeButton&&(e.__closeButton.style.width=t+"px")}function me(e,t){var n={};return i.each(e.__rememberedObjects,function(o,r){var s={},a=e.__rememberedObjectIndecesToControllers[r];i.each(a,function(e,n){s[n]=t?e.initialValue:e.getValue()}),n[r]=s}),n}function ge(e){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].value===e.preset&&(e.__preset_select.selectedIndex=t)}function be(e){0!==e.length&&U.call(window,function(){be(e)}),i.each(e,function(e){e.updateDisplay()})}oe.toggleHide=function(){te=!te,i.each(ne,function(e){e.domElement.style.display=te?"none":""})},oe.CLASS_AUTO_PLACE="a",oe.CLASS_AUTO_PLACE_CONTAINER="ac",oe.CLASS_MAIN="main",oe.CLASS_CONTROLLER_ROW="cr",oe.CLASS_TOO_TALL="taller-than-window",oe.CLASS_CLOSED="closed",oe.CLASS_CLOSE_BUTTON="close-button",oe.CLASS_CLOSE_TOP="close-top",oe.CLASS_CLOSE_BOTTOM="close-bottom",oe.CLASS_DRAG="drag",oe.DEFAULT_WIDTH=245,oe.TEXT_CLOSED="Close Controls",oe.TEXT_OPEN="Open Controls",oe._keydownHandler=function(e){"text"===document.activeElement.type||e.which!==J&&e.keyCode!==J||oe.toggleHide()},A.bind(window,"keydown",oe._keydownHandler,!1),i.extend(oe.prototype,{add:function(e,t){return de(this,e,t,{factoryArgs:Array.prototype.slice.call(arguments,2)})},addColor:function(e,t){return de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
+},{}],"dKqR":[function(require,module,exports) {
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0,exports.sRGBEncoding=exports.ZeroStencilOp=exports.ZeroSlopeEnding=exports.ZeroFactor=exports.ZeroCurvatureEnding=exports.WrapAroundEnding=exports.WireframeGeometry=exports.WebGLRenderTarget=exports.WebGLMultisampleRenderTarget=exports.WebGLCubeRenderTarget=exports.WebGL1Renderer=exports.VideoTexture=exports.VertexColors=exports.VectorKeyframeTrack=exports.Vector4=exports.Vector3=exports.Vector2=exports.VSMShadowMap=exports.UnsignedShortType=exports.UnsignedShort565Type=exports.UnsignedShort5551Type=exports.UnsignedShort4444Type=exports.UnsignedIntType=exports.UnsignedInt248Type=exports.UnsignedByteType=exports.UniformsUtils=exports.UniformsLib=exports.Uniform=exports.UVMapping=exports.TubeGeometry=exports.TubeBufferGeometry=exports.TrianglesDrawMode=exports.TriangleStripDrawMode=exports.TriangleFanDrawMode=exports.Triangle=exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=exports.TorusGeometry=exports.TorusBufferGeometry=exports.Texture=exports.TextGeometry=exports.TextBufferGeometry=exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=exports.TangentSpaceNormalMap=exports.TOUCH=exports.SubtractiveBlending=exports.SubtractEquation=exports.StringKeyframeTrack=exports.StreamReadUsage=exports.StreamDrawUsage=exports.StreamCopyUsage=exports.StereoCamera=exports.StaticReadUsage=exports.StaticDrawUsage=exports.StaticCopyUsage=exports.SrcColorFactor=exports.SrcAlphaSaturateFactor=exports.SrcAlphaFactor=exports.SpriteMaterial=exports.Sprite=exports.SpotLightHelper=exports.SpotLight=exports.SplineCurve=exports.SphericalHarmonics3=exports.Spherical=exports.SphereGeometry=exports.SphereBufferGeometry=exports.Sphere=exports.SmoothShading=exports.SkeletonHelper=exports.Skeleton=exports.ShortType=exports.ShapeUtils=exports.ShapePath=exports.ShapeGeometry=void 0;const t="126";exports.REVISION="126";const e={LEFT:0,MIDDLE:1,RIGHT:2,ROTATE:0,DOLLY:1,PAN:2};exports.MOUSE=e;const n={ROTATE:0,PAN:1,DOLLY_PAN:2,DOLLY_ROTATE:3};exports.TOUCH=n;const r=0;exports.CullFaceNone=r;const i=1;exports.CullFaceBack=i;const s=2;exports.CullFaceFront=s;const o=3;exports.CullFaceFrontBack=3;const a=0;exports.BasicShadowMap=0;const l=1;exports.PCFShadowMap=l;const c=2;exports.PCFSoftShadowMap=c;const h=3;exports.VSMShadowMap=h;const u=0;exports.FrontSide=u;const p=1;exports.BackSide=p;const d=2;exports.DoubleSide=d;const m=1;exports.FlatShading=1;const f=2;exports.SmoothShading=2;const g=0;exports.NoBlending=g;const x=1;exports.NormalBlending=x;const v=2;exports.AdditiveBlending=v;const y=3;exports.SubtractiveBlending=y;const _=4;exports.MultiplyBlending=_;const b=5;exports.CustomBlending=b;const w=100;exports.AddEquation=w;const M=101;exports.SubtractEquation=M;const S=102;exports.ReverseSubtractEquation=S;const T=103;exports.MinEquation=T;const E=104;exports.MaxEquation=E;const A=200;exports.ZeroFactor=A;const L=201;exports.OneFactor=L;const R=202;exports.SrcColorFactor=R;const C=203;exports.OneMinusSrcColorFactor=C;const P=204;exports.SrcAlphaFactor=P;const D=205;exports.OneMinusSrcAlphaFactor=D;const I=206;exports.DstAlphaFactor=I;const B=207;exports.OneMinusDstAlphaFactor=B;const N=208;exports.DstColorFactor=N;const F=209;exports.OneMinusDstColorFactor=F;const O=210;exports.SrcAlphaSaturateFactor=O;const z=0;exports.NeverDepth=z;const G=1;exports.AlwaysDepth=G;const H=2;exports.LessDepth=H;const U=3;exports.LessEqualDepth=U;const k=4;exports.EqualDepth=k;const V=5;exports.GreaterEqualDepth=V;const W=6;exports.GreaterDepth=W;const j=7;exports.NotEqualDepth=j;const q=0;exports.MultiplyOperation=q;const X=1;exports.MixOperation=X;const Y=2;exports.AddOperation=Y;const Z=0;exports.NoToneMapping=Z;const J=1;exports.LinearToneMapping=J;const Q=2;exports.ReinhardToneMapping=Q;const K=3;exports.CineonToneMapping=K;const $=4;exports.ACESFilmicToneMapping=$;const tt=5;exports.CustomToneMapping=tt;const et=300;exports.UVMapping=et;const nt=301;exports.CubeReflectionMapping=nt;const rt=302;exports.CubeRefractionMapping=rt;const it=303;exports.EquirectangularReflectionMapping=it;const st=304;exports.EquirectangularRefractionMapping=st;const ot=306;exports.CubeUVReflectionMapping=ot;const at=307;exports.CubeUVRefractionMapping=at;const lt=1e3;exports.RepeatWrapping=lt;const ct=1001;exports.ClampToEdgeWrapping=ct;const ht=1002;exports.MirroredRepeatWrapping=ht;const ut=1003;exports.NearestFilter=ut;const pt=1004;exports.NearestMipmapNearestFilter=pt;const dt=1004;exports.NearestMipMapNearestFilter=1004;const mt=1005;exports.NearestMipmapLinearFilter=mt;const ft=1005;exports.NearestMipMapLinearFilter=1005;const gt=1006;exports.LinearFilter=gt;const xt=1007;exports.LinearMipmapNearestFilter=xt;const vt=1007;exports.LinearMipMapNearestFilter=1007;const yt=1008;exports.LinearMipmapLinearFilter=yt;const _t=1008;exports.LinearMipMapLinearFilter=1008;const bt=1009;exports.UnsignedByteType=bt;const wt=1010;exports.ByteType=wt;const Mt=1011;exports.ShortType=Mt;const St=1012;exports.UnsignedShortType=St;const Tt=1013;exports.IntType=Tt;const Et=1014;exports.UnsignedIntType=Et;const At=1015;exports.FloatType=At;const Lt=1016;exports.HalfFloatType=Lt;const Rt=1017;exports.UnsignedShort4444Type=Rt;const Ct=1018;exports.UnsignedShort5551Type=Ct;const Pt=1019;exports.UnsignedShort565Type=Pt;const Dt=1020;exports.UnsignedInt248Type=Dt;const It=1021;exports.AlphaFormat=It;const Bt=1022;exports.RGBFormat=Bt;const Nt=1023;exports.RGBAFormat=Nt;const Ft=1024;exports.LuminanceFormat=Ft;const Ot=1025;exports.LuminanceAlphaFormat=Ot;const zt=Nt;exports.RGBEFormat=zt;const Gt=1026;exports.DepthFormat=Gt;const Ht=1027;exports.DepthStencilFormat=Ht;const Ut=1028;exports.RedFormat=Ut;const kt=1029;exports.RedIntegerFormat=kt;const Vt=1030;exports.RGFormat=Vt;const Wt=1031;exports.RGIntegerFormat=Wt;const jt=1032;exports.RGBIntegerFormat=jt;const qt=1033;exports.RGBAIntegerFormat=qt;const Xt=33776;exports.RGB_S3TC_DXT1_Format=Xt;const Yt=33777;exports.RGBA_S3TC_DXT1_Format=Yt;const Zt=33778;exports.RGBA_S3TC_DXT3_Format=Zt;const Jt=33779;exports.RGBA_S3TC_DXT5_Format=Jt;const Qt=35840;exports.RGB_PVRTC_4BPPV1_Format=Qt;const Kt=35841;exports.RGB_PVRTC_2BPPV1_Format=Kt;const $t=35842;exports.RGBA_PVRTC_4BPPV1_Format=$t;const te=35843;exports.RGBA_PVRTC_2BPPV1_Format=te;const ee=36196;exports.RGB_ETC1_Format=ee;const ne=37492;exports.RGB_ETC2_Format=ne;const re=37496;exports.RGBA_ETC2_EAC_Format=re;const ie=37808;exports.RGBA_ASTC_4x4_Format=ie;const se=37809;exports.RGBA_ASTC_5x4_Format=se;const oe=37810;exports.RGBA_ASTC_5x5_Format=oe;const ae=37811;exports.RGBA_ASTC_6x5_Format=ae;const le=37812;exports.RGBA_ASTC_6x6_Format=le;const ce=37813;exports.RGBA_ASTC_8x5_Format=ce;const he=37814;exports.RGBA_ASTC_8x6_Format=he;const ue=37815;exports.RGBA_ASTC_8x8_Format=ue;const pe=37816;exports.RGBA_ASTC_10x5_Format=pe;const de=37817;exports.RGBA_ASTC_10x6_Format=de;const me=37818;exports.RGBA_ASTC_10x8_Format=me;const fe=37819;exports.RGBA_ASTC_10x10_Format=fe;const ge=37820;exports.RGBA_ASTC_12x10_Format=ge;const xe=37821;exports.RGBA_ASTC_12x12_Format=xe;const ve=36492;exports.RGBA_BPTC_Format=ve;const ye=37840;exports.SRGB8_ALPHA8_ASTC_4x4_Format=ye;const _e=37841;exports.SRGB8_ALPHA8_ASTC_5x4_Format=_e;const be=37842;exports.SRGB8_ALPHA8_ASTC_5x5_Format=be;const we=37843;exports.SRGB8_ALPHA8_ASTC_6x5_Format=we;const Me=37844;exports.SRGB8_ALPHA8_ASTC_6x6_Format=Me;const Se=37845;exports.SRGB8_ALPHA8_ASTC_8x5_Format=Se;const Te=37846;exports.SRGB8_ALPHA8_ASTC_8x6_Format=Te;const Ee=37847;exports.SRGB8_ALPHA8_ASTC_8x8_Format=Ee;const Ae=37848;exports.SRGB8_ALPHA8_ASTC_10x5_Format=Ae;const Le=37849;exports.SRGB8_ALPHA8_ASTC_10x6_Format=Le;const Re=37850;exports.SRGB8_ALPHA8_ASTC_10x8_Format=Re;const Ce=37851;exports.SRGB8_ALPHA8_ASTC_10x10_Format=Ce;const Pe=37852;exports.SRGB8_ALPHA8_ASTC_12x10_Format=Pe;const De=37853;exports.SRGB8_ALPHA8_ASTC_12x12_Format=De;const Ie=2200;exports.LoopOnce=Ie;const Be=2201;exports.LoopRepeat=Be;const Ne=2202;exports.LoopPingPong=Ne;const Fe=2300;exports.InterpolateDiscrete=Fe;const Oe=2301;exports.InterpolateLinear=Oe;const ze=2302;exports.InterpolateSmooth=ze;const Ge=2400;exports.ZeroCurvatureEnding=Ge;const He=2401;exports.ZeroSlopeEnding=He;const Ue=2402;exports.WrapAroundEnding=Ue;const ke=2500;exports.NormalAnimationBlendMode=ke;const Ve=2501;exports.AdditiveAnimationBlendMode=Ve;const We=0;exports.TrianglesDrawMode=0;const je=1;exports.TriangleStripDrawMode=1;const qe=2;exports.TriangleFanDrawMode=2;const Xe=3e3;exports.LinearEncoding=Xe;const Ye=3001;exports.sRGBEncoding=Ye;const Ze=3007;exports.GammaEncoding=Ze;const Je=3002;exports.RGBEEncoding=Je;const Qe=3003;exports.LogLuvEncoding=Qe;const Ke=3004;exports.RGBM7Encoding=Ke;const $e=3005;exports.RGBM16Encoding=$e;const tn=3006;exports.RGBDEncoding=tn;const en=3200;exports.BasicDepthPacking=en;const nn=3201;exports.RGBADepthPacking=nn;const rn=0;exports.TangentSpaceNormalMap=rn;const sn=1;exports.ObjectSpaceNormalMap=sn;const on=0;exports.ZeroStencilOp=0;const an=7680;exports.KeepStencilOp=an;const ln=7681;exports.ReplaceStencilOp=7681;const cn=7682;exports.IncrementStencilOp=7682;const hn=7683;exports.DecrementStencilOp=7683;const un=34055;exports.IncrementWrapStencilOp=34055;const pn=34056;exports.DecrementWrapStencilOp=34056;const dn=5386;exports.InvertStencilOp=5386;const mn=512;exports.NeverStencilFunc=512;const fn=513;exports.LessStencilFunc=513;const gn=514;exports.EqualStencilFunc=514;const xn=515;exports.LessEqualStencilFunc=515;const vn=516;exports.GreaterStencilFunc=516;const yn=517;exports.NotEqualStencilFunc=517;const _n=518;exports.GreaterEqualStencilFunc=518;const bn=519;exports.AlwaysStencilFunc=bn;const wn=35044;exports.StaticDrawUsage=wn;const Mn=35048;exports.DynamicDrawUsage=Mn;const Sn=35040;exports.StreamDrawUsage=35040;const Tn=35045;exports.StaticReadUsage=35045;const En=35049;exports.DynamicReadUsage=35049;const An=35041;exports.StreamReadUsage=35041;const Ln=35046;exports.StaticCopyUsage=35046;const Rn=35050;exports.DynamicCopyUsage=35050;const Cn=35042;exports.StreamCopyUsage=35042;const Pn="100";exports.GLSL1="100";const Dn="300 es";function In(){}exports.GLSL3=Dn,Object.assign(In.prototype,{addEventListener:function(t,e){void 0===this._listeners&&(this._listeners={});const n=this._listeners;void 0===n[t]&&(n[t]=[]),-1===n[t].indexOf(e)&&n[t].push(e)},hasEventListener:function(t,e){if(void 0===this._listeners)return!1;const n=this._listeners;return void 0!==n[t]&&-1!==n[t].indexOf(e)},removeEventListener:function(t,e){if(void 0===this._listeners)return;const n=this._listeners[t];if(void 0!==n){const t=n.indexOf(e);-1!==t&&n.splice(t,1)}},dispatchEvent:function(t){if(void 0===this._listeners)return;const e=this._listeners[t.type];if(void 0!==e){t.target=this;const n=e.slice(0);for(let e=0,r=n.length;e<r;e++)n[e].call(this,t)}}});const Bn=[];for(let yx=0;yx<256;yx++)Bn[yx]=(yx<16?"0":"")+yx.toString(16);let Nn=1234567;const Fn={DEG2RAD:Math.PI/180,RAD2DEG:180/Math.PI,generateUUID:function(){const t=4294967295*Math.random()|0,e=4294967295*Math.random()|0,n=4294967295*Math.random()|0,r=4294967295*Math.random()|0;return(Bn[255&t]+Bn[t>>8&255]+Bn[t>>16&255]+Bn[t>>24&255]+"-"+Bn[255&e]+Bn[e>>8&255]+"-"+Bn[e>>16&15|64]+Bn[e>>24&255]+"-"+Bn[63&n|128]+Bn[n>>8&255]+"-"+Bn[n>>16&255]+Bn[n>>24&255]+Bn[255&r]+Bn[r>>8&255]+Bn[r>>16&255]+Bn[r>>24&255]).toUpperCase()},clamp:function(t,e,n){return Math.max(e,Math.min(n,t))},euclideanModulo:function(t,e){return(t%e+e)%e},mapLinear:function(t,e,n,r,i){return r+(t-e)*(i-r)/(n-e)},lerp:function(t,e,n){return(1-n)*t+n*e},damp:function(t,e,n,r){return Fn.lerp(t,e,1-Math.exp(-n*r))},pingpong:function(t,e=1){return e-Math.abs(Fn.euclideanModulo(t,2*e)-e)},smoothstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*(3-2*t)},smootherstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*t*(t*(6*t-15)+10)},randInt:function(t,e){return t+Math.floor(Math.random()*(e-t+1))},randFloat:function(t,e){return t+Math.random()*(e-t)},randFloatSpread:function(t){return t*(.5-Math.random())},seededRandom:function(t){return void 0!==t&&(Nn=t%2147483647),((Nn=16807*Nn%2147483647)-1)/2147483646},degToRad:function(t){return t*Fn.DEG2RAD},radToDeg:function(t){return t*Fn.RAD2DEG},isPowerOfTwo:function(t){return 0==(t&t-1)&&0!==t},ceilPowerOfTwo:function(t){return Math.pow(2,Math.ceil(Math.log(t)/Math.LN2))},floorPowerOfTwo:function(t){return Math.pow(2,Math.floor(Math.log(t)/Math.LN2))},setQuaternionFromProperEuler:function(t,e,n,r,i){const s=Math.cos,o=Math.sin,a=s(n/2),l=o(n/2),c=s((e+r)/2),h=o((e+r)/2),u=s((e-r)/2),p=o((e-r)/2),d=s((r-e)/2),m=o((r-e)/2);switch(i){case"XYX":t.set(a*h,l*u,l*p,a*c);break;case"YZY":t.set(l*p,a*h,l*u,a*c);break;case"ZXZ":t.set(l*u,l*p,a*h,a*c);break;case"XZX":t.set(a*h,l*m,l*d,a*c);break;case"YXY":t.set(l*d,a*h,l*m,a*c);break;case"ZYZ":t.set(l*m,l*d,a*h,a*c);break;default:console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+i)}}};exports.MathUtils=exports.Math=Fn;class On{constructor(t=0,e=0){this.x=t,this.y=e}get width(){return this.x}set width(t){this.x=t}get height(){return this.y}set height(t){this.y=t}set(t,e){return this.x=t,this.y=e,this}setScalar(t){return this.x=t,this.y=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y)}copy(t){return this.x=t.x,this.y=t.y,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this)}addScalar(t){return this.x+=t,this.y+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this)}subScalar(t){return this.x-=t,this.y-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this}multiply(t){return this.x*=t.x,this.y*=t.y,this}multiplyScalar(t){return this.x*=t,this.y*=t,this}divide(t){return this.x/=t.x,this.y/=t.y,this}divideScalar(t){return this.multiplyScalar(1/t)}applyMatrix3(t){const e=this.x,n=this.y,r=t.elements;return this.x=r[0]*e+r[3]*n+r[6],this.y=r[1]*e+r[4]*n+r[7],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this}negate(){return this.x=-this.x,this.y=-this.y,this}dot(t){return this.x*t.x+this.y*t.y}cross(t){return this.x*t.y-this.y*t.x}lengthSq(){return this.x*this.x+this.y*this.y}length(){return Math.sqrt(this.x*this.x+this.y*this.y)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)}normalize(){return this.divideScalar(this.length()||1)}angle(){return Math.atan2(-this.y,-this.x)+Math.PI}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y;return e*e+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this}equals(t){return t.x===this.x&&t.y===this.y}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this}rotateAround(t,e){const n=Math.cos(e),r=Math.sin(e),i=this.x-t.x,s=this.y-t.y;return this.x=i*n-s*r+t.x,this.y=i*r+s*n+t.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}}exports.Vector2=On,On.prototype.isVector2=!0;class zn{constructor(){this.elements=[1,0,0,0,1,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l){const c=this.elements;return c[0]=t,c[1]=r,c[2]=o,c[3]=e,c[4]=i,c[5]=a,c[6]=n,c[7]=s,c[8]=l,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],this}extractBasis(t,e,n){return t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(t){const e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[3],a=n[6],l=n[1],c=n[4],h=n[7],u=n[2],p=n[5],d=n[8],m=r[0],f=r[3],g=r[6],x=r[1],v=r[4],y=r[7],_=r[2],b=r[5],w=r[8];return i[0]=s*m+o*x+a*_,i[3]=s*f+o*v+a*b,i[6]=s*g+o*y+a*w,i[1]=l*m+c*x+h*_,i[4]=l*f+c*v+h*b,i[7]=l*g+c*y+h*w,i[2]=u*m+p*x+d*_,i[5]=u*f+p*v+d*b,i[8]=u*g+p*y+d*w,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8];return e*s*c-e*o*l-n*i*c+n*o*a+r*i*l-r*s*a}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=c*s-o*l,u=o*a-c*i,p=l*i-s*a,d=e*h+n*u+r*p;if(0===d)return this.set(0,0,0,0,0,0,0,0,0);const m=1/d;return t[0]=h*m,t[1]=(r*l-c*n)*m,t[2]=(o*n-r*s)*m,t[3]=u*m,t[4]=(c*e-r*a)*m,t[5]=(r*i-o*e)*m,t[6]=p*m,t[7]=(n*a-l*e)*m,t[8]=(s*e-n*i)*m,this}transpose(){let t;const e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){const e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,n,r,i,s,o){const a=Math.cos(i),l=Math.sin(i);return this.set(n*a,n*l,-n*(a*s+l*o)+s+t,-r*l,r*a,-r*(-l*s+a*o)+o+e,0,0,1),this}scale(t,e){const n=this.elements;return n[0]*=t,n[3]*=t,n[6]*=t,n[1]*=e,n[4]*=e,n[7]*=e,this}rotate(t){const e=Math.cos(t),n=Math.sin(t),r=this.elements,i=r[0],s=r[3],o=r[6],a=r[1],l=r[4],c=r[7];return r[0]=e*i+n*a,r[3]=e*s+n*l,r[6]=e*o+n*c,r[1]=-n*i+e*a,r[4]=-n*s+e*l,r[7]=-n*o+e*c,this}translate(t,e){const n=this.elements;return n[0]+=t*n[2],n[3]+=t*n[5],n[6]+=t*n[8],n[1]+=e*n[2],n[4]+=e*n[5],n[7]+=e*n[8],this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<9;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<9;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t}clone(){return(new this.constructor).fromArray(this.elements)}}let Gn;exports.Matrix3=zn,zn.prototype.isMatrix3=!0;const Hn={getDataURL:function(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===Gn&&(Gn=document.createElementNS("http://www.w3.org/1999/xhtml","canvas")),Gn.width=t.width,Gn.height=t.height;const n=Gn.getContext("2d");t instanceof ImageData?n.putImageData(t,0,0):n.drawImage(t,0,0,t.width,t.height),e=Gn}return e.width>2048||e.height>2048?e.toDataURL("image/jpeg",.6):e.toDataURL("image/png")}};exports.ImageUtils=Hn;let Un=0;class kn extends In{constructor(t=kn.DEFAULT_IMAGE,e=kn.DEFAULT_MAPPING,n=ct,r=ct,i=gt,s=yt,o=Nt,a=bt,l=1,c=Xe){super(),Object.defineProperty(this,"id",{value:Un++}),this.uuid=Fn.generateUUID(),this.name="",this.image=t,this.mipmaps=[],this.mapping=e,this.wrapS=n,this.wrapT=r,this.magFilter=i,this.minFilter=s,this.anisotropy=l,this.format=o,this.internalFormat=null,this.type=a,this.offset=new On(0,0),this.repeat=new On(1,1),this.center=new On(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new zn,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.encoding=c,this.version=0,this.onUpdate=null}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.image=t.image,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.encoding=t.encoding,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const n={metadata:{version:4.5,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,type:this.type,encoding:this.encoding,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(void 0!==this.image){const r=this.image;if(void 0===r.uuid&&(r.uuid=Fn.generateUUID()),!e&&void 0===t.images[r.uuid]){let e;if(Array.isArray(r)){e=[];for(let t=0,n=r.length;t<n;t++)r[t].isDataTexture?e.push(Vn(r[t].image)):e.push(Vn(r[t]))}else e=Vn(r);t.images[r.uuid]={uuid:r.uuid,url:e}}n.image=r.uuid}return e||(t.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==et)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case lt:t.x=t.x-Math.floor(t.x);break;case ct:t.x=t.x<0?0:1;break;case ht:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case lt:t.y=t.y-Math.floor(t.y);break;case ct:t.y=t.y<0?0:1;break;case ht:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&this.version++}}function Vn(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?Hn.getDataURL(t):t.data?{data:Array.prototype.slice.call(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}exports.Texture=kn,kn.DEFAULT_IMAGE=void 0,kn.DEFAULT_MAPPING=et,kn.prototype.isTexture=!0;class Wn{constructor(t=0,e=0,n=0,r=1){this.x=t,this.y=e,this.z=n,this.w=r}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,n,r){return this.x=t,this.y=e,this.z=n,this.w=r,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=this.w,s=t.elements;return this.x=s[0]*e+s[4]*n+s[8]*r+s[12]*i,this.y=s[1]*e+s[5]*n+s[9]*r+s[13]*i,this.z=s[2]*e+s[6]*n+s[10]*r+s[14]*i,this.w=s[3]*e+s[7]*n+s[11]*r+s[15]*i,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,n,r,i;const s=t.elements,o=s[0],a=s[4],l=s[8],c=s[1],h=s[5],u=s[9],p=s[2],d=s[6],m=s[10];if(Math.abs(a-c)<.01&&Math.abs(l-p)<.01&&Math.abs(u-d)<.01){if(Math.abs(a+c)<.1&&Math.abs(l+p)<.1&&Math.abs(u+d)<.1&&Math.abs(o+h+m-3)<.1)return this.set(1,0,0,0),this;e=Math.PI;const t=(o+1)/2,s=(h+1)/2,f=(m+1)/2,g=(a+c)/4,x=(l+p)/4,v=(u+d)/4;return t>s&&t>f?t<.01?(n=0,r=.707106781,i=.707106781):(r=g/(n=Math.sqrt(t)),i=x/n):s>f?s<.01?(n=.707106781,r=0,i=.707106781):(n=g/(r=Math.sqrt(s)),i=v/r):f<.01?(n=.707106781,r=.707106781,i=0):(n=x/(i=Math.sqrt(f)),r=v/i),this.set(n,r,i,e),this}let f=Math.sqrt((d-u)*(d-u)+(l-p)*(l-p)+(c-a)*(c-a));return Math.abs(f)<.001&&(f=1),this.x=(d-u)/f,this.y=(l-p)/f,this.z=(c-a)/f,this.w=Math.acos((o+h+m-1)/2),this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this.w=Math.max(t.w,Math.min(e.w,this.w)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this.w=Math.max(t,Math.min(e,this.w)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this.w=this.w<0?Math.ceil(this.w):Math.floor(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this.w=t.w+(e.w-t.w)*n,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}}exports.Vector4=Wn,Wn.prototype.isVector4=!0;class jn extends In{constructor(t,e,n){super(),this.width=t,this.height=e,this.depth=1,this.scissor=new Wn(0,0,t,e),this.scissorTest=!1,this.viewport=new Wn(0,0,t,e),n=n||{},this.texture=new kn(void 0,n.mapping,n.wrapS,n.wrapT,n.magFilter,n.minFilter,n.format,n.type,n.anisotropy,n.encoding),this.texture.image={},this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=1,this.texture.generateMipmaps=void 0!==n.generateMipmaps&&n.generateMipmaps,this.texture.minFilter=void 0!==n.minFilter?n.minFilter:gt,this.depthBuffer=void 0===n.depthBuffer||n.depthBuffer,this.stencilBuffer=void 0!==n.stencilBuffer&&n.stencilBuffer,this.depthTexture=void 0!==n.depthTexture?n.depthTexture:null}setTexture(t){t.image={width:this.width,height:this.height,depth:this.depth},this.texture=t}setSize(t,e,n=1){this.width===t&&this.height===e&&this.depth===n||(this.width=t,this.height=e,this.depth=n,this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=n,this.dispose()),this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.width=t.width,this.height=t.height,this.depth=t.depth,this.viewport.copy(t.viewport),this.texture=t.texture.clone(),this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.depthTexture=t.depthTexture,this}dispose(){this.dispatchEvent({type:"dispose"})}}exports.WebGLRenderTarget=jn,jn.prototype.isWebGLRenderTarget=!0;class qn extends jn{constructor(t,e,n){super(t,e,n),this.samples=4}copy(t){return super.copy.call(this,t),this.samples=t.samples,this}}exports.WebGLMultisampleRenderTarget=qn,qn.prototype.isWebGLMultisampleRenderTarget=!0;class Xn{constructor(t=0,e=0,n=0,r=1){this._x=t,this._y=e,this._z=n,this._w=r}static slerp(t,e,n,r){return n.copy(t).slerp(e,r)}static slerpFlat(t,e,n,r,i,s,o){let a=n[r+0],l=n[r+1],c=n[r+2],h=n[r+3];const u=i[s+0],p=i[s+1],d=i[s+2],m=i[s+3];if(0===o)return t[e+0]=a,t[e+1]=l,t[e+2]=c,void(t[e+3]=h);if(1===o)return t[e+0]=u,t[e+1]=p,t[e+2]=d,void(t[e+3]=m);if(h!==m||a!==u||l!==p||c!==d){let t=1-o;const e=a*u+l*p+c*d+h*m,n=e>=0?1:-1,r=1-e*e;if(r>Number.EPSILON){const i=Math.sqrt(r),s=Math.atan2(i,e*n);t=Math.sin(t*s)/i,o=Math.sin(o*s)/i}const i=o*n;if(a=a*t+u*i,l=l*t+p*i,c=c*t+d*i,h=h*t+m*i,t===1-o){const t=1/Math.sqrt(a*a+l*l+c*c+h*h);a*=t,l*=t,c*=t,h*=t}}t[e]=a,t[e+1]=l,t[e+2]=c,t[e+3]=h}static multiplyQuaternionsFlat(t,e,n,r,i,s){const o=n[r],a=n[r+1],l=n[r+2],c=n[r+3],h=i[s],u=i[s+1],p=i[s+2],d=i[s+3];return t[e]=o*d+c*h+a*p-l*u,t[e+1]=a*d+c*u+l*h-o*p,t[e+2]=l*d+c*p+o*u-a*h,t[e+3]=c*d-o*h-a*u-l*p,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._w=r,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e){if(!t||!t.isEuler)throw new Error("THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.");const n=t._x,r=t._y,i=t._z,s=t._order,o=Math.cos,a=Math.sin,l=o(n/2),c=o(r/2),h=o(i/2),u=a(n/2),p=a(r/2),d=a(i/2);switch(s){case"XYZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"YXZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"ZXY":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"ZYX":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"YZX":this._x=u*c*h+l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h-u*p*d;break;case"XZY":this._x=u*c*h-l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h+u*p*d;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)}return!1!==e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const n=e/2,r=Math.sin(n);return this._x=t.x*r,this._y=t.y*r,this._z=t.z*r,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,n=e[0],r=e[4],i=e[8],s=e[1],o=e[5],a=e[9],l=e[2],c=e[6],h=e[10],u=n+o+h;if(u>0){const t=.5/Math.sqrt(u+1);this._w=.25/t,this._x=(c-a)*t,this._y=(i-l)*t,this._z=(s-r)*t}else if(n>o&&n>h){const t=2*Math.sqrt(1+n-o-h);this._w=(c-a)/t,this._x=.25*t,this._y=(r+s)/t,this._z=(i+l)/t}else if(o>h){const t=2*Math.sqrt(1+o-n-h);this._w=(i-l)/t,this._x=(r+s)/t,this._y=.25*t,this._z=(a+c)/t}else{const t=2*Math.sqrt(1+h-n-o);this._w=(s-r)/t,this._x=(i+l)/t,this._y=(a+c)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let n=t.dot(e)+1;return n<1e-6?(n=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=n):(this._x=0,this._y=-t.z,this._z=t.y,this._w=n)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=n),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(Fn.clamp(this.dot(t),-1,1)))}rotateTowards(t,e){const n=this.angleTo(t);if(0===n)return this;const r=Math.min(1,e/n);return this.slerp(t,r),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t,e){return void 0!==e?(console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead."),this.multiplyQuaternions(t,e)):this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const n=t._x,r=t._y,i=t._z,s=t._w,o=e._x,a=e._y,l=e._z,c=e._w;return this._x=n*c+s*o+r*l-i*a,this._y=r*c+s*a+i*o-n*l,this._z=i*c+s*l+n*a-r*o,this._w=s*c-n*o-r*a-i*l,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const n=this._x,r=this._y,i=this._z,s=this._w;let o=s*t._w+n*t._x+r*t._y+i*t._z;if(o<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,o=-o):this.copy(t),o>=1)return this._w=s,this._x=n,this._y=r,this._z=i,this;const a=1-o*o;if(a<=Number.EPSILON){const t=1-e;return this._w=t*s+e*this._w,this._x=t*n+e*this._x,this._y=t*r+e*this._y,this._z=t*i+e*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(a),c=Math.atan2(l,o),h=Math.sin((1-e)*c)/l,u=Math.sin(e*c)/l;return this._w=s*h+this._w*u,this._x=n*h+this._x*u,this._y=r*h+this._y*u,this._z=i*h+this._z*u,this._onChangeCallback(),this}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Quaternion=Xn,Xn.prototype.isQuaternion=!0;class Yn{constructor(t=0,e=0,n=0){this.x=t,this.y=e,this.z=n}set(t,e,n){return void 0===n&&(n=this.z),this.x=t,this.y=e,this.z=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(t,e)):(this.x*=t.x,this.y*=t.y,this.z*=t.z,this)}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return t&&t.isEuler||console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order."),this.applyQuaternion(Jn.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(Jn.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[3]*n+i[6]*r,this.y=i[1]*e+i[4]*n+i[7]*r,this.z=i[2]*e+i[5]*n+i[8]*r,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=t.elements,s=1/(i[3]*e+i[7]*n+i[11]*r+i[15]);return this.x=(i[0]*e+i[4]*n+i[8]*r+i[12])*s,this.y=(i[1]*e+i[5]*n+i[9]*r+i[13])*s,this.z=(i[2]*e+i[6]*n+i[10]*r+i[14])*s,this}applyQuaternion(t){const e=this.x,n=this.y,r=this.z,i=t.x,s=t.y,o=t.z,a=t.w,l=a*e+s*r-o*n,c=a*n+o*e-i*r,h=a*r+i*n-s*e,u=-i*e-s*n-o*r;return this.x=l*a+u*-i+c*-o-h*-s,this.y=c*a+u*-s+h*-i-l*-o,this.z=h*a+u*-o+l*-s-c*-i,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[4]*n+i[8]*r,this.y=i[1]*e+i[5]*n+i[9]*r,this.z=i[2]*e+i[6]*n+i[10]*r,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this}cross(t,e){return void 0!==e?(console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(t,e)):this.crossVectors(this,t)}crossVectors(t,e){const n=t.x,r=t.y,i=t.z,s=e.x,o=e.y,a=e.z;return this.x=r*a-i*o,this.y=i*s-n*a,this.z=n*o-r*s,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const n=t.dot(this)/e;return this.copy(t).multiplyScalar(n)}projectOnPlane(t){return Zn.copy(this).projectOnVector(t),this.sub(Zn)}reflect(t){return this.sub(Zn.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const n=this.dot(t)/e;return Math.acos(Fn.clamp(n,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y,r=this.z-t.z;return e*e+n*n+r*r}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,n){const r=Math.sin(e)*t;return this.x=r*Math.sin(n),this.y=Math.cos(e)*t,this.z=r*Math.cos(n),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,n){return this.x=t*Math.sin(e),this.y=n,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),n=this.setFromMatrixColumn(t,1).length(),r=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=n,this.z=r,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}}exports.Vector3=Yn,Yn.prototype.isVector3=!0;const Zn=new Yn,Jn=new Xn;class Qn{constructor(t=new Yn(1/0,1/0,1/0),e=new Yn(-1/0,-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.length;a<l;a+=3){const l=t[a],c=t[a+1],h=t[a+2];l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromBufferAttribute(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.count;a<l;a++){const l=t.getX(a),c=t.getY(a),h=t.getZ(a);l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=$n.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}setFromObject(t){return this.makeEmpty(),this.expandByObject(t)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return void 0===t&&(console.warn("THREE.Box3: .getCenter() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box3: .getSize() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t){t.updateWorldMatrix(!1,!1);const e=t.geometry;void 0!==e&&(null===e.boundingBox&&e.computeBoundingBox(),tr.copy(e.boundingBox),tr.applyMatrix4(t.matrixWorld),this.union(tr));const n=t.children;for(let r=0,i=n.length;r<i;r++)this.expandByObject(n[r]);return this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y||t.z<this.min.z||t.z>this.max.z)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box3: .getParameter() target is now required"),e=new Yn),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y||t.max.z<this.min.z||t.min.z>this.max.z)}intersectsSphere(t){return this.clampPoint(t.center,$n),$n.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,n;return t.normal.x>0?(e=t.normal.x*this.min.x,n=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,n=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,n+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,n+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,n+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,n+=t.normal.z*this.min.z),e<=-t.constant&&n>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(ar),lr.subVectors(this.max,ar),er.subVectors(t.a,ar),nr.subVectors(t.b,ar),rr.subVectors(t.c,ar),ir.subVectors(nr,er),sr.subVectors(rr,nr),or.subVectors(er,rr);let e=[0,-ir.z,ir.y,0,-sr.z,sr.y,0,-or.z,or.y,ir.z,0,-ir.x,sr.z,0,-sr.x,or.z,0,-or.x,-ir.y,ir.x,0,-sr.y,sr.x,0,-or.y,or.x,0];return!!ur(e,er,nr,rr,lr)&&(!!ur(e=[1,0,0,0,1,0,0,0,1],er,nr,rr,lr)&&(cr.crossVectors(ir,sr),ur(e=[cr.x,cr.y,cr.z],er,nr,rr,lr)))}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box3: .clampPoint() target is now required"),e=new Yn),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return $n.copy(t).clamp(this.min,this.max).sub(t).length()}getBoundingSphere(t){return void 0===t&&console.error("THREE.Box3: .getBoundingSphere() target is now required"),this.getCenter(t.center),t.radius=.5*this.getSize($n).length(),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()?this:(Kn[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),Kn[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),Kn[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),Kn[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),Kn[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),Kn[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),Kn[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),Kn[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(Kn),this)}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box3=Qn,Qn.prototype.isBox3=!0;const Kn=[new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn],$n=new Yn,tr=new Qn,er=new Yn,nr=new Yn,rr=new Yn,ir=new Yn,sr=new Yn,or=new Yn,ar=new Yn,lr=new Yn,cr=new Yn,hr=new Yn;function ur(t,e,n,r,i){for(let s=0,o=t.length-3;s<=o;s+=3){hr.fromArray(t,s);const o=i.x*Math.abs(hr.x)+i.y*Math.abs(hr.y)+i.z*Math.abs(hr.z),a=e.dot(hr),l=n.dot(hr),c=r.dot(hr);if(Math.max(-Math.max(a,l,c),Math.min(a,l,c))>o)return!1}return!0}const pr=new Qn;class dr{constructor(t=new Yn,e=-1){this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const n=this.center;void 0!==e?n.copy(e):pr.setFromPoints(t).getCenter(n);let r=0;for(let i=0,s=t.length;i<s;i++)r=Math.max(r,n.distanceToSquared(t[i]));return this.radius=Math.sqrt(r),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const n=this.center.distanceToSquared(t);return void 0===e&&(console.warn("THREE.Sphere: .clampPoint() target is now required"),e=new Yn),e.copy(t),n>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return void 0===t&&(console.warn("THREE.Sphere: .getBoundingBox() target is now required"),t=new Qn),this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}exports.Sphere=dr;const mr=new Yn,fr=new Yn,gr=new Yn,xr=new Yn,vr=new Yn,yr=new Yn,_r=new Yn;class br{constructor(t=new Yn,e=new Yn(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return void 0===e&&(console.warn("THREE.Ray: .at() target is now required"),e=new Yn),e.copy(this.direction).multiplyScalar(t).add(this.origin)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,mr)),this}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Ray: .closestPointToPoint() target is now required"),e=new Yn),e.subVectors(t,this.origin);const n=e.dot(this.direction);return n<0?e.copy(this.origin):e.copy(this.direction).multiplyScalar(n).add(this.origin)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=mr.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(mr.copy(this.direction).multiplyScalar(e).add(this.origin),mr.distanceToSquared(t))}distanceSqToSegment(t,e,n,r){fr.copy(t).add(e).multiplyScalar(.5),gr.copy(e).sub(t).normalize(),xr.copy(this.origin).sub(fr);const i=.5*t.distanceTo(e),s=-this.direction.dot(gr),o=xr.dot(this.direction),a=-xr.dot(gr),l=xr.lengthSq(),c=Math.abs(1-s*s);let h,u,p,d;if(c>0)if(u=s*o-a,d=i*c,(h=s*a-o)>=0)if(u>=-d)if(u<=d){const t=1/c;p=(h*=t)*(h+s*(u*=t)+2*o)+u*(s*h+u+2*a)+l}else u=i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u=-i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u<=-d?p=-(h=Math.max(0,-(-s*i+o)))*h+(u=h>0?-i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l:u<=d?(h=0,p=(u=Math.min(Math.max(-i,-a),i))*(u+2*a)+l):p=-(h=Math.max(0,-(s*i+o)))*h+(u=h>0?i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l;else u=s>0?-i:i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;return n&&n.copy(this.direction).multiplyScalar(h).add(this.origin),r&&r.copy(gr).multiplyScalar(u).add(fr),p}intersectSphere(t,e){mr.subVectors(t.center,this.origin);const n=mr.dot(this.direction),r=mr.dot(mr)-n*n,i=t.radius*t.radius;if(r>i)return null;const s=Math.sqrt(i-r),o=n-s,a=n+s;return o<0&&a<0?null:o<0?this.at(a,e):this.at(o,e)}intersectsSphere(t){return this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){const e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(t.normal)+t.constant)/e;return n>=0?n:null}intersectPlane(t,e){const n=this.distanceToPlane(t);return null===n?null:this.at(n,e)}intersectsPlane(t){const e=t.distanceToPoint(this.origin);return 0===e||t.normal.dot(this.direction)*e<0}intersectBox(t,e){let n,r,i,s,o,a;const l=1/this.direction.x,c=1/this.direction.y,h=1/this.direction.z,u=this.origin;return l>=0?(n=(t.min.x-u.x)*l,r=(t.max.x-u.x)*l):(n=(t.max.x-u.x)*l,r=(t.min.x-u.x)*l),c>=0?(i=(t.min.y-u.y)*c,s=(t.max.y-u.y)*c):(i=(t.max.y-u.y)*c,s=(t.min.y-u.y)*c),n>s||i>r?null:((i>n||n!=n)&&(n=i),(s<r||r!=r)&&(r=s),h>=0?(o=(t.min.z-u.z)*h,a=(t.max.z-u.z)*h):(o=(t.max.z-u.z)*h,a=(t.min.z-u.z)*h),n>a||o>r?null:((o>n||n!=n)&&(n=o),(a<r||r!=r)&&(r=a),r<0?null:this.at(n>=0?n:r,e)))}intersectsBox(t){return null!==this.intersectBox(t,mr)}intersectTriangle(t,e,n,r,i){vr.subVectors(e,t),yr.subVectors(n,t),_r.crossVectors(vr,yr);let s,o=this.direction.dot(_r);if(o>0){if(r)return null;s=1}else{if(!(o<0))return null;s=-1,o=-o}xr.subVectors(this.origin,t);const a=s*this.direction.dot(yr.crossVectors(xr,yr));if(a<0)return null;const l=s*this.direction.dot(vr.cross(xr));if(l<0)return null;if(a+l>o)return null;const c=-s*xr.dot(_r);return c<0?null:this.at(c/o,i)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}exports.Ray=br;class wr{constructor(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l,c,h,u,p,d,m,f){const g=this.elements;return g[0]=t,g[4]=e,g[8]=n,g[12]=r,g[1]=i,g[5]=s,g[9]=o,g[13]=a,g[2]=l,g[6]=c,g[10]=h,g[14]=u,g[3]=p,g[7]=d,g[11]=m,g[15]=f,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new wr).fromArray(this.elements)}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],e[9]=n[9],e[10]=n[10],e[11]=n[11],e[12]=n[12],e[13]=n[13],e[14]=n[14],e[15]=n[15],this}copyPosition(t){const e=this.elements,n=t.elements;return e[12]=n[12],e[13]=n[13],e[14]=n[14],this}setFromMatrix3(t){const e=t.elements;return this.set(e[0],e[3],e[6],0,e[1],e[4],e[7],0,e[2],e[5],e[8],0,0,0,0,1),this}extractBasis(t,e,n){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(t,e,n){return this.set(t.x,e.x,n.x,0,t.y,e.y,n.y,0,t.z,e.z,n.z,0,0,0,0,1),this}extractRotation(t){const e=this.elements,n=t.elements,r=1/Mr.setFromMatrixColumn(t,0).length(),i=1/Mr.setFromMatrixColumn(t,1).length(),s=1/Mr.setFromMatrixColumn(t,2).length();return e[0]=n[0]*r,e[1]=n[1]*r,e[2]=n[2]*r,e[3]=0,e[4]=n[4]*i,e[5]=n[5]*i,e[6]=n[6]*i,e[7]=0,e[8]=n[8]*s,e[9]=n[9]*s,e[10]=n[10]*s,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromEuler(t){t&&t.isEuler||console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.");const e=this.elements,n=t.x,r=t.y,i=t.z,s=Math.cos(n),o=Math.sin(n),a=Math.cos(r),l=Math.sin(r),c=Math.cos(i),h=Math.sin(i);if("XYZ"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=-a*h,e[8]=l,e[1]=n+r*l,e[5]=t-i*l,e[9]=-o*a,e[2]=i-t*l,e[6]=r+n*l,e[10]=s*a}else if("YXZ"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t+i*o,e[4]=r*o-n,e[8]=s*l,e[1]=s*h,e[5]=s*c,e[9]=-o,e[2]=n*o-r,e[6]=i+t*o,e[10]=s*a}else if("ZXY"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t-i*o,e[4]=-s*h,e[8]=r+n*o,e[1]=n+r*o,e[5]=s*c,e[9]=i-t*o,e[2]=-s*l,e[6]=o,e[10]=s*a}else if("ZYX"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=r*l-n,e[8]=t*l+i,e[1]=a*h,e[5]=i*l+t,e[9]=n*l-r,e[2]=-l,e[6]=o*a,e[10]=s*a}else if("YZX"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=i-t*h,e[8]=r*h+n,e[1]=h,e[5]=s*c,e[9]=-o*c,e[2]=-l*c,e[6]=n*h+r,e[10]=t-i*h}else if("XZY"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=-h,e[8]=l*c,e[1]=t*h+i,e[5]=s*c,e[9]=n*h-r,e[2]=r*h-n,e[6]=o*c,e[10]=i*h+t}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromQuaternion(t){return this.compose(Tr,t,Er)}lookAt(t,e,n){const r=this.elements;return Rr.subVectors(t,e),0===Rr.lengthSq()&&(Rr.z=1),Rr.normalize(),Ar.crossVectors(n,Rr),0===Ar.lengthSq()&&(1===Math.abs(n.z)?Rr.x+=1e-4:Rr.z+=1e-4,Rr.normalize(),Ar.crossVectors(n,Rr)),Ar.normalize(),Lr.crossVectors(Rr,Ar),r[0]=Ar.x,r[4]=Lr.x,r[8]=Rr.x,r[1]=Ar.y,r[5]=Lr.y,r[9]=Rr.y,r[2]=Ar.z,r[6]=Lr.z,r[10]=Rr.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(t,e)):this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[4],a=n[8],l=n[12],c=n[1],h=n[5],u=n[9],p=n[13],d=n[2],m=n[6],f=n[10],g=n[14],x=n[3],v=n[7],y=n[11],_=n[15],b=r[0],w=r[4],M=r[8],S=r[12],T=r[1],E=r[5],A=r[9],L=r[13],R=r[2],C=r[6],P=r[10],D=r[14],I=r[3],B=r[7],N=r[11],F=r[15];return i[0]=s*b+o*T+a*R+l*I,i[4]=s*w+o*E+a*C+l*B,i[8]=s*M+o*A+a*P+l*N,i[12]=s*S+o*L+a*D+l*F,i[1]=c*b+h*T+u*R+p*I,i[5]=c*w+h*E+u*C+p*B,i[9]=c*M+h*A+u*P+p*N,i[13]=c*S+h*L+u*D+p*F,i[2]=d*b+m*T+f*R+g*I,i[6]=d*w+m*E+f*C+g*B,i[10]=d*M+m*A+f*P+g*N,i[14]=d*S+m*L+f*D+g*F,i[3]=x*b+v*T+y*R+_*I,i[7]=x*w+v*E+y*C+_*B,i[11]=x*M+v*A+y*P+_*N,i[15]=x*S+v*L+y*D+_*F,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[4],r=t[8],i=t[12],s=t[1],o=t[5],a=t[9],l=t[13],c=t[2],h=t[6],u=t[10],p=t[14];return t[3]*(+i*a*h-r*l*h-i*o*u+n*l*u+r*o*p-n*a*p)+t[7]*(+e*a*p-e*l*u+i*s*u-r*s*p+r*l*c-i*a*c)+t[11]*(+e*l*h-e*o*p-i*s*h+n*s*p+i*o*c-n*l*c)+t[15]*(-r*o*c-e*a*h+e*o*u+r*s*h-n*s*u+n*a*c)}transpose(){const t=this.elements;let e;return e=t[1],t[1]=t[4],t[4]=e,e=t[2],t[2]=t[8],t[8]=e,e=t[6],t[6]=t[9],t[9]=e,e=t[3],t[3]=t[12],t[12]=e,e=t[7],t[7]=t[13],t[13]=e,e=t[11],t[11]=t[14],t[14]=e,this}setPosition(t,e,n){const r=this.elements;return t.isVector3?(r[12]=t.x,r[13]=t.y,r[14]=t.z):(r[12]=t,r[13]=e,r[14]=n),this}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=t[9],u=t[10],p=t[11],d=t[12],m=t[13],f=t[14],g=t[15],x=h*f*l-m*u*l+m*a*p-o*f*p-h*a*g+o*u*g,v=d*u*l-c*f*l-d*a*p+s*f*p+c*a*g-s*u*g,y=c*m*l-d*h*l+d*o*p-s*m*p-c*o*g+s*h*g,_=d*h*a-c*m*a-d*o*u+s*m*u+c*o*f-s*h*f,b=e*x+n*v+r*y+i*_;if(0===b)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const w=1/b;return t[0]=x*w,t[1]=(m*u*i-h*f*i-m*r*p+n*f*p+h*r*g-n*u*g)*w,t[2]=(o*f*i-m*a*i+m*r*l-n*f*l-o*r*g+n*a*g)*w,t[3]=(h*a*i-o*u*i-h*r*l+n*u*l+o*r*p-n*a*p)*w,t[4]=v*w,t[5]=(c*f*i-d*u*i+d*r*p-e*f*p-c*r*g+e*u*g)*w,t[6]=(d*a*i-s*f*i-d*r*l+e*f*l+s*r*g-e*a*g)*w,t[7]=(s*u*i-c*a*i+c*r*l-e*u*l-s*r*p+e*a*p)*w,t[8]=y*w,t[9]=(d*h*i-c*m*i-d*n*p+e*m*p+c*n*g-e*h*g)*w,t[10]=(s*m*i-d*o*i+d*n*l-e*m*l-s*n*g+e*o*g)*w,t[11]=(c*o*i-s*h*i-c*n*l+e*h*l+s*n*p-e*o*p)*w,t[12]=_*w,t[13]=(c*m*r-d*h*r+d*n*u-e*m*u-c*n*f+e*h*f)*w,t[14]=(d*o*r-s*m*r-d*n*a+e*m*a+s*n*f-e*o*f)*w,t[15]=(s*h*r-c*o*r+c*n*a-e*h*a-s*n*u+e*o*u)*w,this}scale(t){const e=this.elements,n=t.x,r=t.y,i=t.z;return e[0]*=n,e[4]*=r,e[8]*=i,e[1]*=n,e[5]*=r,e[9]*=i,e[2]*=n,e[6]*=r,e[10]*=i,e[3]*=n,e[7]*=r,e[11]*=i,this}getMaxScaleOnAxis(){const t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],n=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],r=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,n,r))}makeTranslation(t,e,n){return this.set(1,0,0,t,0,1,0,e,0,0,1,n,0,0,0,1),this}makeRotationX(t){const e=Math.cos(t),n=Math.sin(t);return this.set(1,0,0,0,0,e,-n,0,0,n,e,0,0,0,0,1),this}makeRotationY(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,0,n,0,0,1,0,0,-n,0,e,0,0,0,0,1),this}makeRotationZ(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,-n,0,0,n,e,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(t,e){const n=Math.cos(e),r=Math.sin(e),i=1-n,s=t.x,o=t.y,a=t.z,l=i*s,c=i*o;return this.set(l*s+n,l*o-r*a,l*a+r*o,0,l*o+r*a,c*o+n,c*a-r*s,0,l*a-r*o,c*a+r*s,i*a*a+n,0,0,0,0,1),this}makeScale(t,e,n){return this.set(t,0,0,0,0,e,0,0,0,0,n,0,0,0,0,1),this}makeShear(t,e,n){return this.set(1,e,n,0,t,1,n,0,t,e,1,0,0,0,0,1),this}compose(t,e,n){const r=this.elements,i=e._x,s=e._y,o=e._z,a=e._w,l=i+i,c=s+s,h=o+o,u=i*l,p=i*c,d=i*h,m=s*c,f=s*h,g=o*h,x=a*l,v=a*c,y=a*h,_=n.x,b=n.y,w=n.z;return r[0]=(1-(m+g))*_,r[1]=(p+y)*_,r[2]=(d-v)*_,r[3]=0,r[4]=(p-y)*b,r[5]=(1-(u+g))*b,r[6]=(f+x)*b,r[7]=0,r[8]=(d+v)*w,r[9]=(f-x)*w,r[10]=(1-(u+m))*w,r[11]=0,r[12]=t.x,r[13]=t.y,r[14]=t.z,r[15]=1,this}decompose(t,e,n){const r=this.elements;let i=Mr.set(r[0],r[1],r[2]).length();const s=Mr.set(r[4],r[5],r[6]).length(),o=Mr.set(r[8],r[9],r[10]).length();this.determinant()<0&&(i=-i),t.x=r[12],t.y=r[13],t.z=r[14],Sr.copy(this);const a=1/i,l=1/s,c=1/o;return Sr.elements[0]*=a,Sr.elements[1]*=a,Sr.elements[2]*=a,Sr.elements[4]*=l,Sr.elements[5]*=l,Sr.elements[6]*=l,Sr.elements[8]*=c,Sr.elements[9]*=c,Sr.elements[10]*=c,e.setFromRotationMatrix(Sr),n.x=i,n.y=s,n.z=o,this}makePerspective(t,e,n,r,i,s){void 0===s&&console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.");const o=this.elements,a=2*i/(e-t),l=2*i/(n-r),c=(e+t)/(e-t),h=(n+r)/(n-r),u=-(s+i)/(s-i),p=-2*s*i/(s-i);return o[0]=a,o[4]=0,o[8]=c,o[12]=0,o[1]=0,o[5]=l,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=u,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(t,e,n,r,i,s){const o=this.elements,a=1/(e-t),l=1/(n-r),c=1/(s-i),h=(e+t)*a,u=(n+r)*l,p=(s+i)*c;return o[0]=2*a,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*l,o[9]=0,o[13]=-u,o[2]=0,o[6]=0,o[10]=-2*c,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<16;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<16;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t[e+9]=n[9],t[e+10]=n[10],t[e+11]=n[11],t[e+12]=n[12],t[e+13]=n[13],t[e+14]=n[14],t[e+15]=n[15],t}}exports.Matrix4=wr,wr.prototype.isMatrix4=!0;const Mr=new Yn,Sr=new wr,Tr=new Yn(0,0,0),Er=new Yn(1,1,1),Ar=new Yn,Lr=new Yn,Rr=new Yn,Cr=new wr,Pr=new Xn;class Dr{constructor(t=0,e=0,n=0,r=Dr.DefaultOrder){this._x=t,this._y=e,this._z=n,this._order=r}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._order=r||this._order,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e,n){const r=Fn.clamp,i=t.elements,s=i[0],o=i[4],a=i[8],l=i[1],c=i[5],h=i[9],u=i[2],p=i[6],d=i[10];switch(e=e||this._order){case"XYZ":this._y=Math.asin(r(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-h,d),this._z=Math.atan2(-o,s)):(this._x=Math.atan2(p,c),this._z=0);break;case"YXZ":this._x=Math.asin(-r(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(l,c)):(this._y=Math.atan2(-u,s),this._z=0);break;case"ZXY":this._x=Math.asin(r(p,-1,1)),Math.abs(p)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-o,c)):(this._y=0,this._z=Math.atan2(l,s));break;case"ZYX":this._y=Math.asin(-r(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(p,d),this._z=Math.atan2(l,s)):(this._x=0,this._z=Math.atan2(-o,c));break;case"YZX":this._z=Math.asin(r(l,-1,1)),Math.abs(l)<.9999999?(this._x=Math.atan2(-h,c),this._y=Math.atan2(-u,s)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-r(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(p,c),this._y=Math.atan2(a,s)):(this._x=Math.atan2(-h,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!1!==n&&this._onChangeCallback(),this}setFromQuaternion(t,e,n){return Cr.makeRotationFromQuaternion(t),this.setFromRotationMatrix(Cr,e,n)}setFromVector3(t,e){return this.set(t.x,t.y,t.z,e||this._order)}reorder(t){return Pr.setFromEuler(this),this.setFromQuaternion(Pr,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t}toVector3(t){return t?t.set(this._x,this._y,this._z):new Yn(this._x,this._y,this._z)}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Euler=Dr,Dr.prototype.isEuler=!0,Dr.DefaultOrder="XYZ",Dr.RotationOrders=["XYZ","YZX","ZXY","XZY","YXZ","ZYX"];class Ir{constructor(){this.mask=1}set(t){this.mask=1<<t|0}enable(t){this.mask|=1<<t|0}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t|0}disable(t){this.mask&=~(1<<t|0)}disableAll(){this.mask=0}test(t){return 0!=(this.mask&t.mask)}}exports.Layers=Ir;let Br=0;const Nr=new Yn,Fr=new Xn,Or=new wr,zr=new Yn,Gr=new Yn,Hr=new Yn,Ur=new Xn,kr=new Yn(1,0,0),Vr=new Yn(0,1,0),Wr=new Yn(0,0,1),jr={type:"added"},qr={type:"removed"};function Xr(){Object.defineProperty(this,"id",{value:Br++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Xr.DefaultUp.clone();const t=new Yn,e=new Dr,n=new Xn,r=new Yn(1,1,1);e._onChange(function(){n.setFromEuler(e,!1)}),n._onChange(function(){e.setFromQuaternion(n,void 0,!1)}),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:n},scale:{configurable:!0,enumerable:!0,value:r},modelViewMatrix:{value:new wr},normalMatrix:{value:new zn}}),this.matrix=new wr,this.matrixWorld=new wr,this.matrixAutoUpdate=Xr.DefaultMatrixAutoUpdate,this.matrixWorldNeedsUpdate=!1,this.layers=new Ir,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}Xr.DefaultUp=new Yn(0,1,0),Xr.DefaultMatrixAutoUpdate=!0,Xr.prototype=Object.assign(Object.create(In.prototype),{constructor:Xr,isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix4:function(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(t){return this.quaternion.premultiply(t),this},setRotationFromAxisAngle:function(t,e){this.quaternion.setFromAxisAngle(t,e)},setRotationFromEuler:function(t){this.quaternion.setFromEuler(t,!0)},setRotationFromMatrix:function(t){this.quaternion.setFromRotationMatrix(t)},setRotationFromQuaternion:function(t){this.quaternion.copy(t)},rotateOnAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.multiply(Fr),this},rotateOnWorldAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.premultiply(Fr),this},rotateX:function(t){return this.rotateOnAxis(kr,t)},rotateY:function(t){return this.rotateOnAxis(Vr,t)},rotateZ:function(t){return this.rotateOnAxis(Wr,t)},translateOnAxis:function(t,e){return Nr.copy(t).applyQuaternion(this.quaternion),this.position.add(Nr.multiplyScalar(e)),this},translateX:function(t){return this.translateOnAxis(kr,t)},translateY:function(t){return this.translateOnAxis(Vr,t)},translateZ:function(t){return this.translateOnAxis(Wr,t)},localToWorld:function(t){return t.applyMatrix4(this.matrixWorld)},worldToLocal:function(t){return t.applyMatrix4(Or.copy(this.matrixWorld).invert())},lookAt:function(t,e,n){t.isVector3?zr.copy(t):zr.set(t,e,n);const r=this.parent;this.updateWorldMatrix(!0,!1),Gr.setFromMatrixPosition(this.matrixWorld),this.isCamera||this.isLight?Or.lookAt(Gr,zr,this.up):Or.lookAt(zr,Gr,this.up),this.quaternion.setFromRotationMatrix(Or),r&&(Or.extractRotation(r.matrixWorld),Fr.setFromRotationMatrix(Or),this.quaternion.premultiply(Fr.invert()))},add:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.add(arguments[t]);return this}return t===this?(console.error("THREE.Object3D.add: object can't be added as a child of itself.",t),this):(t&&t.isObject3D?(null!==t.parent&&t.parent.remove(t),t.parent=this,this.children.push(t),t.dispatchEvent(jr)):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t),this)},remove:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.remove(arguments[t]);return this}const e=this.children.indexOf(t);return-1!==e&&(t.parent=null,this.children.splice(e,1),t.dispatchEvent(qr)),this},clear:function(){for(let t=0;t<this.children.length;t++){const e=this.children[t];e.parent=null,e.dispatchEvent(qr)}return this.children.length=0,this},attach:function(t){return this.updateWorldMatrix(!0,!1),Or.copy(this.matrixWorld).invert(),null!==t.parent&&(t.parent.updateWorldMatrix(!0,!1),Or.multiply(t.parent.matrixWorld)),t.applyMatrix4(Or),this.add(t),t.updateWorldMatrix(!1,!0),this},getObjectById:function(t){return this.getObjectByProperty("id",t)},getObjectByName:function(t){return this.getObjectByProperty("name",t)},getObjectByProperty:function(t,e){if(this[t]===e)return this;for(let n=0,r=this.children.length;n<r;n++){const r=this.children[n].getObjectByProperty(t,e);if(void 0!==r)return r}},getWorldPosition:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldPosition() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),t.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldQuaternion() target is now required"),t=new Xn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,t,Hr),t},getWorldScale:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldScale() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,Ur,t),t},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Object3D: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(e[8],e[9],e[10]).normalize()},raycast:function(){},traverse:function(t){t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverse(t)},traverseVisible:function(t){if(!1===this.visible)return;t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverseVisible(t)},traverseAncestors:function(t){const e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))},updateMatrix:function(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,t=!0);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].updateMatrixWorld(t)},updateWorldMatrix:function(t,e){const n=this.parent;if(!0===t&&null!==n&&n.updateWorldMatrix(!0,!1),this.matrixAutoUpdate&&this.updateMatrix(),null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),!0===e){const t=this.children;for(let e=0,n=t.length;e<n;e++)t[e].updateWorldMatrix(!1,!0)}},toJSON:function(t){const e=void 0===t||"string"==typeof t,n={};e&&(t={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{}},n.metadata={version:4.5,type:"Object",generator:"Object3D.toJSON"});const r={};function i(e,n){return void 0===e[n.uuid]&&(e[n.uuid]=n.toJSON(t)),n.uuid}if(r.uuid=this.uuid,r.type=this.type,""!==this.name&&(r.name=this.name),!0===this.castShadow&&(r.castShadow=!0),!0===this.receiveShadow&&(r.receiveShadow=!0),!1===this.visible&&(r.visible=!1),!1===this.frustumCulled&&(r.frustumCulled=!1),0!==this.renderOrder&&(r.renderOrder=this.renderOrder),"{}"!==JSON.stringify(this.userData)&&(r.userData=this.userData),r.layers=this.layers.mask,r.matrix=this.matrix.toArray(),!1===this.matrixAutoUpdate&&(r.matrixAutoUpdate=!1),this.isInstancedMesh&&(r.type="InstancedMesh",r.count=this.count,r.instanceMatrix=this.instanceMatrix.toJSON()),this.isMesh||this.isLine||this.isPoints){r.geometry=i(t.geometries,this.geometry);const e=this.geometry.parameters;if(void 0!==e&&void 0!==e.shapes){const n=e.shapes;if(Array.isArray(n))for(let e=0,r=n.length;e<r;e++){const r=n[e];i(t.shapes,r)}else i(t.shapes,n)}}if(this.isSkinnedMesh&&(r.bindMode=this.bindMode,r.bindMatrix=this.bindMatrix.toArray(),void 0!==this.skeleton&&(i(t.skeletons,this.skeleton),r.skeleton=this.skeleton.uuid)),void 0!==this.material)if(Array.isArray(this.material)){const e=[];for(let n=0,r=this.material.length;n<r;n++)e.push(i(t.materials,this.material[n]));r.material=e}else r.material=i(t.materials,this.material);if(this.children.length>0){r.children=[];for(let e=0;e<this.children.length;e++)r.children.push(this.children[e].toJSON(t).object)}if(this.animations.length>0){r.animations=[];for(let e=0;e<this.animations.length;e++){const n=this.animations[e];r.animations.push(i(t.animations,n))}}if(e){const e=s(t.geometries),r=s(t.materials),i=s(t.textures),o=s(t.images),a=s(t.shapes),l=s(t.skeletons),c=s(t.animations);e.length>0&&(n.geometries=e),r.length>0&&(n.materials=r),i.length>0&&(n.textures=i),o.length>0&&(n.images=o),a.length>0&&(n.shapes=a),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c)}return n.object=r,n;function s(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}},clone:function(t){return(new this.constructor).copy(this,t)},copy:function(t,e=!0){if(this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.rotation.order=t.rotation.order,this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(let n=0;n<t.children.length;n++){const e=t.children[n];this.add(e.clone())}return this}});const Yr=new Yn,Zr=new Yn,Jr=new zn;class Qr{constructor(t=new Yn(1,0,0),e=0){this.normal=t,this.constant=e}set(t,e){return this.normal.copy(t),this.constant=e,this}setComponents(t,e,n,r){return this.normal.set(t,e,n),this.constant=r,this}setFromNormalAndCoplanarPoint(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this}setFromCoplanarPoints(t,e,n){const r=Yr.subVectors(n,e).cross(Zr.subVectors(t,e)).normalize();return this.setFromNormalAndCoplanarPoint(r,t),this}copy(t){return this.normal.copy(t.normal),this.constant=t.constant,this}normalize(){const t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(t){return this.normal.dot(t)+this.constant}distanceToSphere(t){return this.distanceToPoint(t.center)-t.radius}projectPoint(t,e){return void 0===e&&(console.warn("THREE.Plane: .projectPoint() target is now required"),e=new Yn),e.copy(this.normal).multiplyScalar(-this.distanceToPoint(t)).add(t)}intersectLine(t,e){void 0===e&&(console.warn("THREE.Plane: .intersectLine() target is now required"),e=new Yn);const n=t.delta(Yr),r=this.normal.dot(n);if(0===r)return 0===this.distanceToPoint(t.start)?e.copy(t.start):void 0;const i=-(t.start.dot(this.normal)+this.constant)/r;return i<0||i>1?void 0:e.copy(n).multiplyScalar(i).add(t.start)}intersectsLine(t){const e=this.distanceToPoint(t.start),n=this.distanceToPoint(t.end);return e<0&&n>0||n<0&&e>0}intersectsBox(t){return t.intersectsPlane(this)}intersectsSphere(t){return t.intersectsPlane(this)}coplanarPoint(t){return void 0===t&&(console.warn("THREE.Plane: .coplanarPoint() target is now required"),t=new Yn),t.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(t,e){const n=e||Jr.getNormalMatrix(t),r=this.coplanarPoint(Yr).applyMatrix4(t),i=this.normal.applyMatrix3(n).normalize();return this.constant=-r.dot(i),this}translate(t){return this.constant-=t.dot(this.normal),this}equals(t){return t.normal.equals(this.normal)&&t.constant===this.constant}clone(){return(new this.constructor).copy(this)}}exports.Plane=Qr,Qr.prototype.isPlane=!0;const Kr=new Yn,$r=new Yn,ti=new Yn,ei=new Yn,ni=new Yn,ri=new Yn,ii=new Yn,si=new Yn,oi=new Yn,ai=new Yn;class li{constructor(t=new Yn,e=new Yn,n=new Yn){this.a=t,this.b=e,this.c=n}static getNormal(t,e,n,r){void 0===r&&(console.warn("THREE.Triangle: .getNormal() target is now required"),r=new Yn),r.subVectors(n,e),Kr.subVectors(t,e),r.cross(Kr);const i=r.lengthSq();return i>0?r.multiplyScalar(1/Math.sqrt(i)):r.set(0,0,0)}static getBarycoord(t,e,n,r,i){Kr.subVectors(r,e),$r.subVectors(n,e),ti.subVectors(t,e);const s=Kr.dot(Kr),o=Kr.dot($r),a=Kr.dot(ti),l=$r.dot($r),c=$r.dot(ti),h=s*l-o*o;if(void 0===i&&(console.warn("THREE.Triangle: .getBarycoord() target is now required"),i=new Yn),0===h)return i.set(-2,-1,-1);const u=1/h,p=(l*a-o*c)*u,d=(s*c-o*a)*u;return i.set(1-p-d,d,p)}static containsPoint(t,e,n,r){return this.getBarycoord(t,e,n,r,ei),ei.x>=0&&ei.y>=0&&ei.x+ei.y<=1}static getUV(t,e,n,r,i,s,o,a){return this.getBarycoord(t,e,n,r,ei),a.set(0,0),a.addScaledVector(i,ei.x),a.addScaledVector(s,ei.y),a.addScaledVector(o,ei.z),a}static isFrontFacing(t,e,n,r){return Kr.subVectors(n,e),$r.subVectors(t,e),Kr.cross($r).dot(r)<0}set(t,e,n){return this.a.copy(t),this.b.copy(e),this.c.copy(n),this}setFromPointsAndIndices(t,e,n,r){return this.a.copy(t[e]),this.b.copy(t[n]),this.c.copy(t[r]),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this}getArea(){return Kr.subVectors(this.c,this.b),$r.subVectors(this.a,this.b),.5*Kr.cross($r).length()}getMidpoint(t){return void 0===t&&(console.warn("THREE.Triangle: .getMidpoint() target is now required"),t=new Yn),t.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(t){return li.getNormal(this.a,this.b,this.c,t)}getPlane(t){return void 0===t&&(console.warn("THREE.Triangle: .getPlane() target is now required"),t=new Qr),t.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(t,e){return li.getBarycoord(t,this.a,this.b,this.c,e)}getUV(t,e,n,r,i){return li.getUV(t,this.a,this.b,this.c,e,n,r,i)}containsPoint(t){return li.containsPoint(t,this.a,this.b,this.c)}isFrontFacing(t){return li.isFrontFacing(this.a,this.b,this.c,t)}intersectsBox(t){return t.intersectsTriangle(this)}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Triangle: .closestPointToPoint() target is now required"),e=new Yn);const n=this.a,r=this.b,i=this.c;let s,o;ni.subVectors(r,n),ri.subVectors(i,n),si.subVectors(t,n);const a=ni.dot(si),l=ri.dot(si);if(a<=0&&l<=0)return e.copy(n);oi.subVectors(t,r);const c=ni.dot(oi),h=ri.dot(oi);if(c>=0&&h<=c)return e.copy(r);const u=a*h-c*l;if(u<=0&&a>=0&&c<=0)return s=a/(a-c),e.copy(n).addScaledVector(ni,s);ai.subVectors(t,i);const p=ni.dot(ai),d=ri.dot(ai);if(d>=0&&p<=d)return e.copy(i);const m=p*l-a*d;if(m<=0&&l>=0&&d<=0)return o=l/(l-d),e.copy(n).addScaledVector(ri,o);const f=c*d-p*h;if(f<=0&&h-c>=0&&p-d>=0)return ii.subVectors(i,r),o=(h-c)/(h-c+(p-d)),e.copy(r).addScaledVector(ii,o);const g=1/(f+m+u);return s=m*g,o=u*g,e.copy(n).addScaledVector(ni,s).addScaledVector(ri,o)}equals(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}exports.Triangle=li;let ci=0;function hi(){Object.defineProperty(this,"id",{value:ci++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Material",this.fog=!0,this.blending=x,this.side=u,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.blendSrc=P,this.blendDst=D,this.blendEquation=w,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=U,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=bn,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=an,this.stencilZFail=an,this.stencilZPass=an,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaTest=0,this.premultipliedAlpha=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0}hi.prototype=Object.assign(Object.create(In.prototype),{constructor:hi,isMaterial:!0,onBeforeCompile:function(){},customProgramCacheKey:function(){return this.onBeforeCompile.toString()},setValues:function(t){if(void 0!==t)for(const e in t){const n=t[e];if(void 0===n){console.warn("THREE.Material: '"+e+"' parameter is undefined.");continue}if("shading"===e){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===n;continue}const r=this[e];void 0!==r?r&&r.isColor?r.set(n):r&&r.isVector3&&n&&n.isVector3?r.copy(n):this[e]=n:console.warn("THREE."+this.type+": '"+e+"' is not a property of this material.")}},toJSON:function(t){const e=void 0===t||"string"==typeof t;e&&(t={textures:{},images:{}});const n={metadata:{version:4.5,type:"Material",generator:"Material.toJSON"}};function r(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),this.sheen&&this.sheen.isColor&&(n.sheen=this.sheen.getHex()),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(t).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(t).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(t).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(t).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(t).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(t).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(t).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(t).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(t).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(t).uuid,n.reflectivity=this.reflectivity,n.refractionRatio=this.refractionRatio,void 0!==this.combine&&(n.combine=this.combine),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity)),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.size&&(n.size=this.size),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),this.blending!==x&&(n.blending=this.blending),this.side!==u&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.morphTargets&&(n.morphTargets=!0),!0===this.morphNormals&&(n.morphNormals=!0),!0===this.skinning&&(n.skinning=!0),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),"{}"!==JSON.stringify(this.userData)&&(n.userData=this.userData),e){const e=r(t.textures),i=r(t.images);e.length>0&&(n.textures=e),i.length>0&&(n.images=i)}return n},clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.name=t.name,this.fog=t.fog,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;const e=t.clippingPlanes;let n=null;if(null!==e){const t=e.length;n=new Array(t);for(let r=0;r!==t;++r)n[r]=e[r].clone()}return this.clippingPlanes=n,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.premultipliedAlpha=t.premultipliedAlpha,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this},dispose:function(){this.dispatchEvent({type:"dispose"})}}),Object.defineProperty(hi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}});const ui={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},pi={h:0,s:0,l:0},di={h:0,s:0,l:0};function mi(t,e,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?t+6*(e-t)*n:n<.5?e:n<2/3?t+6*(e-t)*(2/3-n):t}function fi(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}function gi(t){return t<.0031308?12.92*t:1.055*Math.pow(t,.41666)-.055}class xi{constructor(t,e,n){return void 0===e&&void 0===n?this.set(t):this.setRGB(t,e,n)}set(t){return t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t),this}setScalar(t){return this.r=t,this.g=t,this.b=t,this}setHex(t){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,this}setRGB(t,e,n){return this.r=t,this.g=e,this.b=n,this}setHSL(t,e,n){if(t=Fn.euclideanModulo(t,1),e=Fn.clamp(e,0,1),n=Fn.clamp(n,0,1),0===e)this.r=this.g=this.b=n;else{const r=n<=.5?n*(1+e):n+e-n*e,i=2*n-r;this.r=mi(i,r,t+1/3),this.g=mi(i,r,t),this.b=mi(i,r,t-1/3)}return this}setStyle(t){function e(e){void 0!==e&&parseFloat(e)<1&&console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")}let n;if(n=/^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(t)){let t;const r=n[1],i=n[2];switch(r){case"rgb":case"rgba":if(t=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(255,parseInt(t[1],10))/255,this.g=Math.min(255,parseInt(t[2],10))/255,this.b=Math.min(255,parseInt(t[3],10))/255,e(t[4]),this;if(t=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(100,parseInt(t[1],10))/100,this.g=Math.min(100,parseInt(t[2],10))/100,this.b=Math.min(100,parseInt(t[3],10))/100,e(t[4]),this;break;case"hsl":case"hsla":if(t=/^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i)){const n=parseFloat(t[1])/360,r=parseInt(t[2],10)/100,i=parseInt(t[3],10)/100;return e(t[4]),this.setHSL(n,r,i)}}}else if(n=/^\#([A-Fa-f\d]+)$/.exec(t)){const t=n[1],e=t.length;if(3===e)return this.r=parseInt(t.charAt(0)+t.charAt(0),16)/255,this.g=parseInt(t.charAt(1)+t.charAt(1),16)/255,this.b=parseInt(t.charAt(2)+t.charAt(2),16)/255,this;if(6===e)return this.r=parseInt(t.charAt(0)+t.charAt(1),16)/255,this.g=parseInt(t.charAt(2)+t.charAt(3),16)/255,this.b=parseInt(t.charAt(4)+t.charAt(5),16)/255,this}return t&&t.length>0?this.setColorName(t):this}setColorName(t){const e=ui[t];return void 0!==e?this.setHex(e):console.warn("THREE.Color: Unknown color "+t),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(t){return this.r=t.r,this.g=t.g,this.b=t.b,this}copyGammaToLinear(t,e=2){return this.r=Math.pow(t.r,e),this.g=Math.pow(t.g,e),this.b=Math.pow(t.b,e),this}copyLinearToGamma(t,e=2){const n=e>0?1/e:1;return this.r=Math.pow(t.r,n),this.g=Math.pow(t.g,n),this.b=Math.pow(t.b,n),this}convertGammaToLinear(t){return this.copyGammaToLinear(this,t),this}convertLinearToGamma(t){return this.copyLinearToGamma(this,t),this}copySRGBToLinear(t){return this.r=fi(t.r),this.g=fi(t.g),this.b=fi(t.b),this}copyLinearToSRGB(t){return this.r=gi(t.r),this.g=gi(t.g),this.b=gi(t.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(){return 255*this.r<<16^255*this.g<<8^255*this.b<<0}getHexString(){return("000000"+this.getHex().toString(16)).slice(-6)}getHSL(t){void 0===t&&(console.warn("THREE.Color: .getHSL() target is now required"),t={h:0,s:0,l:0});const e=this.r,n=this.g,r=this.b,i=Math.max(e,n,r),s=Math.min(e,n,r);let o,a;const l=(s+i)/2;if(s===i)o=0,a=0;else{const t=i-s;switch(a=l<=.5?t/(i+s):t/(2-i-s),i){case e:o=(n-r)/t+(n<r?6:0);break;case n:o=(r-e)/t+2;break;case r:o=(e-n)/t+4}o/=6}return t.h=o,t.s=a,t.l=l,t}getStyle(){return"rgb("+(255*this.r|0)+","+(255*this.g|0)+","+(255*this.b|0)+")"}offsetHSL(t,e,n){return this.getHSL(pi),pi.h+=t,pi.s+=e,pi.l+=n,this.setHSL(pi.h,pi.s,pi.l),this}add(t){return this.r+=t.r,this.g+=t.g,this.b+=t.b,this}addColors(t,e){return this.r=t.r+e.r,this.g=t.g+e.g,this.b=t.b+e.b,this}addScalar(t){return this.r+=t,this.g+=t,this.b+=t,this}sub(t){return this.r=Math.max(0,this.r-t.r),this.g=Math.max(0,this.g-t.g),this.b=Math.max(0,this.b-t.b),this}multiply(t){return this.r*=t.r,this.g*=t.g,this.b*=t.b,this}multiplyScalar(t){return this.r*=t,this.g*=t,this.b*=t,this}lerp(t,e){return this.r+=(t.r-this.r)*e,this.g+=(t.g-this.g)*e,this.b+=(t.b-this.b)*e,this}lerpColors(t,e,n){return this.r=t.r+(e.r-t.r)*n,this.g=t.g+(e.g-t.g)*n,this.b=t.b+(e.b-t.b)*n,this}lerpHSL(t,e){this.getHSL(pi),t.getHSL(di);const n=Fn.lerp(pi.h,di.h,e),r=Fn.lerp(pi.s,di.s,e),i=Fn.lerp(pi.l,di.l,e);return this.setHSL(n,r,i),this}equals(t){return t.r===this.r&&t.g===this.g&&t.b===this.b}fromArray(t,e=0){return this.r=t[e],this.g=t[e+1],this.b=t[e+2],this}toArray(t=[],e=0){return t[e]=this.r,t[e+1]=this.g,t[e+2]=this.b,t}fromBufferAttribute(t,e){return this.r=t.getX(e),this.g=t.getY(e),this.b=t.getZ(e),!0===t.normalized&&(this.r/=255,this.g/=255,this.b/=255),this}toJSON(){return this.getHex()}}exports.Color=xi,xi.NAMES=ui,xi.prototype.isColor=!0,xi.prototype.r=1,xi.prototype.g=1,xi.prototype.b=1;class vi extends hi{constructor(t){super(),this.type="MeshBasicMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this}}exports.MeshBasicMaterial=vi,vi.prototype.isMeshBasicMaterial=!0;const yi=new Yn,_i=new On;function bi(t,e,n){if(Array.isArray(t))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.name="",this.array=t,this.itemSize=e,this.count=void 0!==t?t.length/e:0,this.normalized=!0===n,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0}function wi(t,e,n){bi.call(this,new Int8Array(t),e,n)}function Mi(t,e,n){bi.call(this,new Uint8Array(t),e,n)}function Si(t,e,n){bi.call(this,new Uint8ClampedArray(t),e,n)}function Ti(t,e,n){bi.call(this,new Int16Array(t),e,n)}function Ei(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ai(t,e,n){bi.call(this,new Int32Array(t),e,n)}function Li(t,e,n){bi.call(this,new Uint32Array(t),e,n)}function Ri(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ci(t,e,n){bi.call(this,new Float32Array(t),e,n)}function Pi(t,e,n){bi.call(this,new Float64Array(t),e,n)}function Di(t){if(0===t.length)return-1/0;let e=t[0];for(let n=1,r=t.length;n<r;++n)t[n]>e&&(e=t[n]);return e}Object.defineProperty(bi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(bi.prototype,{isBufferAttribute:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.itemSize,n*=e.itemSize;for(let r=0,i=this.itemSize;r<i;r++)this.array[t+r]=e.array[n+r];return this},copyArray:function(t){return this.array.set(t),this},copyColorsArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",r),i=new xi),e[n++]=i.r,e[n++]=i.g,e[n++]=i.b}return this},copyVector2sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",r),i=new On),e[n++]=i.x,e[n++]=i.y}return this},copyVector3sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",r),i=new Yn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z}return this},copyVector4sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",r),i=new Wn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z,e[n++]=i.w}return this},applyMatrix3:function(t){if(2===this.itemSize)for(let e=0,n=this.count;e<n;e++)_i.fromBufferAttribute(this,e),_i.applyMatrix3(t),this.setXY(e,_i.x,_i.y);else if(3===this.itemSize)for(let e=0,n=this.count;e<n;e++)yi.fromBufferAttribute(this,e),yi.applyMatrix3(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyMatrix4:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyMatrix4(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyNormalMatrix:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyNormalMatrix(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},transformDirection:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.transformDirection(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},set:function(t,e=0){return this.array.set(t,e),this},getX:function(t){return this.array[t*this.itemSize]},setX:function(t,e){return this.array[t*this.itemSize]=e,this},getY:function(t){return this.array[t*this.itemSize+1]},setY:function(t,e){return this.array[t*this.itemSize+1]=e,this},getZ:function(t){return this.array[t*this.itemSize+2]},setZ:function(t,e){return this.array[t*this.itemSize+2]=e,this},getW:function(t){return this.array[t*this.itemSize+3]},setW:function(t,e){return this.array[t*this.itemSize+3]=e,this},setXY:function(t,e,n){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this.array[t+3]=i,this},onUpload:function(t){return this.onUploadCallback=t,this},clone:function(){return new this.constructor(this.array,this.itemSize).copy(this)},toJSON:function(){return{itemSize:this.itemSize,type:this.array.constructor.name,array:Array.prototype.slice.call(this.array),normalized:this.normalized}}}),wi.prototype=Object.create(bi.prototype),wi.prototype.constructor=wi,Mi.prototype=Object.create(bi.prototype),Mi.prototype.constructor=Mi,Si.prototype=Object.create(bi.prototype),Si.prototype.constructor=Si,Ti.prototype=Object.create(bi.prototype),Ti.prototype.constructor=Ti,Ei.prototype=Object.create(bi.prototype),Ei.prototype.constructor=Ei,Ai.prototype=Object.create(bi.prototype),Ai.prototype.constructor=Ai,Li.prototype=Object.create(bi.prototype),Li.prototype.constructor=Li,Ri.prototype=Object.create(bi.prototype),Ri.prototype.constructor=Ri,Ri.prototype.isFloat16BufferAttribute=!0,Ci.prototype=Object.create(bi.prototype),Ci.prototype.constructor=Ci,Pi.prototype=Object.create(bi.prototype),Pi.prototype.constructor=Pi;const Ii={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:Uint8ClampedArray,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};function Bi(t,e){return new Ii[t](e)}let Ni=0;const Fi=new wr,Oi=new Xr,zi=new Yn,Gi=new Qn,Hi=new Qn,Ui=new Yn;function ki(){Object.defineProperty(this,"id",{value:Ni++}),this.uuid=Fn.generateUUID(),this.name="",this.type="BufferGeometry",this.index=null,this.attributes={},this.morphAttributes={},this.morphTargetsRelative=!1,this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.drawRange={start:0,count:1/0},this.userData={}}ki.prototype=Object.assign(Object.create(In.prototype),{constructor:ki,isBufferGeometry:!0,getIndex:function(){return this.index},setIndex:function(t){return Array.isArray(t)?this.index=new(Di(t)>65535?Li:Ei)(t,1):this.index=t,this},getAttribute:function(t){return this.attributes[t]},setAttribute:function(t,e){return this.attributes[t]=e,this},deleteAttribute:function(t){return delete this.attributes[t],this},hasAttribute:function(t){return void 0!==this.attributes[t]},addGroup:function(t,e,n=0){this.groups.push({start:t,count:e,materialIndex:n})},clearGroups:function(){this.groups=[]},setDrawRange:function(t,e){this.drawRange.start=t,this.drawRange.count=e},applyMatrix4:function(t){const e=this.attributes.position;void 0!==e&&(e.applyMatrix4(t),e.needsUpdate=!0);const n=this.attributes.normal;if(void 0!==n){const e=(new zn).getNormalMatrix(t);n.applyNormalMatrix(e),n.needsUpdate=!0}const r=this.attributes.tangent;return void 0!==r&&(r.transformDirection(t),r.needsUpdate=!0),null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this},rotateX:function(t){return Fi.makeRotationX(t),this.applyMatrix4(Fi),this},rotateY:function(t){return Fi.makeRotationY(t),this.applyMatrix4(Fi),this},rotateZ:function(t){return Fi.makeRotationZ(t),this.applyMatrix4(Fi),this},translate:function(t,e,n){return Fi.makeTranslation(t,e,n),this.applyMatrix4(Fi),this},scale:function(t,e,n){return Fi.makeScale(t,e,n),this.applyMatrix4(Fi),this},lookAt:function(t){return Oi.lookAt(t),Oi.updateMatrix(),this.applyMatrix4(Oi.matrix),this},center:function(){return this.computeBoundingBox(),this.boundingBox.getCenter(zi).negate(),this.translate(zi.x,zi.y,zi.z),this},setFromPoints:function(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n];e.push(r.x,r.y,r.z||0)}return this.setAttribute("position",new Ci(e,3)),this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new Qn);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingBox.set(new Yn(-1/0,-1/0,-1/0),new Yn(1/0,1/0,1/0));if(void 0!==t){if(this.boundingBox.setFromBufferAttribute(t),e)for(let n=0,r=e.length;n<r;n++){const t=e[n];Gi.setFromBufferAttribute(t),this.morphTargetsRelative?(Ui.addVectors(this.boundingBox.min,Gi.min),this.boundingBox.expandByPoint(Ui),Ui.addVectors(this.boundingBox.max,Gi.max),this.boundingBox.expandByPoint(Ui)):(this.boundingBox.expandByPoint(Gi.min),this.boundingBox.expandByPoint(Gi.max))}}else this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new dr);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingSphere.set(new Yn,1/0);if(t){const n=this.boundingSphere.center;if(Gi.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const n=e[t];Hi.setFromBufferAttribute(n),this.morphTargetsRelative?(Ui.addVectors(Gi.min,Hi.min),Gi.expandByPoint(Ui),Ui.addVectors(Gi.max,Hi.max),Gi.expandByPoint(Ui)):(Gi.expandByPoint(Hi.min),Gi.expandByPoint(Hi.max))}Gi.getCenter(n);let r=0;for(let e=0,i=t.count;e<i;e++)Ui.fromBufferAttribute(t,e),r=Math.max(r,n.distanceToSquared(Ui));if(e)for(let i=0,s=e.length;i<s;i++){const s=e[i],o=this.morphTargetsRelative;for(let e=0,i=s.count;e<i;e++)Ui.fromBufferAttribute(s,e),o&&(zi.fromBufferAttribute(t,e),Ui.add(zi)),r=Math.max(r,n.distanceToSquared(Ui))}this.boundingSphere.radius=Math.sqrt(r),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}},computeFaceNormals:function(){},computeTangents:function(){const t=this.index,e=this.attributes;if(null===t||void 0===e.position||void 0===e.normal||void 0===e.uv)return void console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");const n=t.array,r=e.position.array,i=e.normal.array,s=e.uv.array,o=r.length/3;void 0===e.tangent&&this.setAttribute("tangent",new bi(new Float32Array(4*o),4));const a=e.tangent.array,l=[],c=[];for(let T=0;T<o;T++)l[T]=new Yn,c[T]=new Yn;const h=new Yn,u=new Yn,p=new Yn,d=new On,m=new On,f=new On,g=new Yn,x=new Yn;function v(t,e,n){h.fromArray(r,3*t),u.fromArray(r,3*e),p.fromArray(r,3*n),d.fromArray(s,2*t),m.fromArray(s,2*e),f.fromArray(s,2*n),u.sub(h),p.sub(h),m.sub(d),f.sub(d);const i=1/(m.x*f.y-f.x*m.y);isFinite(i)&&(g.copy(u).multiplyScalar(f.y).addScaledVector(p,-m.y).multiplyScalar(i),x.copy(p).multiplyScalar(m.x).addScaledVector(u,-f.x).multiplyScalar(i),l[t].add(g),l[e].add(g),l[n].add(g),c[t].add(x),c[e].add(x),c[n].add(x))}let y=this.groups;0===y.length&&(y=[{start:0,count:n.length}]);for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)v(n[r+0],n[r+1],n[r+2])}const _=new Yn,b=new Yn,w=new Yn,M=new Yn;function S(t){w.fromArray(i,3*t),M.copy(w);const e=l[t];_.copy(e),_.sub(w.multiplyScalar(w.dot(e))).normalize(),b.crossVectors(M,e);const n=b.dot(c[t])<0?-1:1;a[4*t]=_.x,a[4*t+1]=_.y,a[4*t+2]=_.z,a[4*t+3]=n}for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)S(n[r+0]),S(n[r+1]),S(n[r+2])}},computeVertexNormals:function(){const t=this.index,e=this.getAttribute("position");if(void 0!==e){let n=this.getAttribute("normal");if(void 0===n)n=new bi(new Float32Array(3*e.count),3),this.setAttribute("normal",n);else for(let t=0,e=n.count;t<e;t++)n.setXYZ(t,0,0,0);const r=new Yn,i=new Yn,s=new Yn,o=new Yn,a=new Yn,l=new Yn,c=new Yn,h=new Yn;if(t)for(let u=0,p=t.count;u<p;u+=3){const p=t.getX(u+0),d=t.getX(u+1),m=t.getX(u+2);r.fromBufferAttribute(e,p),i.fromBufferAttribute(e,d),s.fromBufferAttribute(e,m),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),o.fromBufferAttribute(n,p),a.fromBufferAttribute(n,d),l.fromBufferAttribute(n,m),o.add(c),a.add(c),l.add(c),n.setXYZ(p,o.x,o.y,o.z),n.setXYZ(d,a.x,a.y,a.z),n.setXYZ(m,l.x,l.y,l.z)}else for(let t=0,u=e.count;t<u;t+=3)r.fromBufferAttribute(e,t+0),i.fromBufferAttribute(e,t+1),s.fromBufferAttribute(e,t+2),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),n.setXYZ(t+0,c.x,c.y,c.z),n.setXYZ(t+1,c.x,c.y,c.z),n.setXYZ(t+2,c.x,c.y,c.z);this.normalizeNormals(),n.needsUpdate=!0}},merge:function(t,e){if(!t||!t.isBufferGeometry)return void console.error("THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.",t);void 0===e&&(e=0,console.warn("THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge."));const n=this.attributes;for(const r in n){if(void 0===t.attributes[r])continue;const i=n[r].array,s=t.attributes[r],o=s.array,a=s.itemSize*e,l=Math.min(o.length,i.length-a);for(let t=0,e=a;t<l;t++,e++)i[e]=o[t]}return this},normalizeNormals:function(){const t=this.attributes.normal;for(let e=0,n=t.count;e<n;e++)Ui.fromBufferAttribute(t,e),Ui.normalize(),t.setXYZ(e,Ui.x,Ui.y,Ui.z)},toNonIndexed:function(){function t(t,e){const n=t.array,r=t.itemSize,i=t.normalized,s=new n.constructor(e.length*r);let o=0,a=0;for(let l=0,c=e.length;l<c;l++){o=e[l]*r;for(let t=0;t<r;t++)s[a++]=n[o++]}return new bi(s,r,i)}if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed."),this;const e=new ki,n=this.index.array,r=this.attributes;for(const o in r){const i=t(r[o],n);e.setAttribute(o,i)}const i=this.morphAttributes;for(const o in i){const r=[],s=i[o];for(let e=0,i=s.length;e<i;e++){const i=t(s[e],n);r.push(i)}e.morphAttributes[o]=r}e.morphTargetsRelative=this.morphTargetsRelative;const s=this.groups;for(let o=0,a=s.length;o<a;o++){const t=s[o];e.addGroup(t.start,t.count,t.materialIndex)}return e},toJSON:function(){const t={metadata:{version:4.5,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};if(t.uuid=this.uuid,t.type=this.type,""!==this.name&&(t.name=this.name),Object.keys(this.userData).length>0&&(t.userData=this.userData),void 0!==this.parameters){const e=this.parameters;for(const n in e)void 0!==e[n]&&(t[n]=e[n]);return t}t.data={attributes:{}};const e=this.index;null!==e&&(t.data.index={type:e.array.constructor.name,array:Array.prototype.slice.call(e.array)});const n=this.attributes;for(const a in n){const e=n[a],r=e.toJSON(t.data);""!==e.name&&(r.name=e.name),t.data.attributes[a]=r}const r={};let i=!1;for(const a in this.morphAttributes){const e=this.morphAttributes[a],n=[];for(let r=0,i=e.length;r<i;r++){const i=e[r],s=i.toJSON(t.data);""!==i.name&&(s.name=i.name),n.push(s)}n.length>0&&(r[a]=n,i=!0)}i&&(t.data.morphAttributes=r,t.data.morphTargetsRelative=this.morphTargetsRelative);const s=this.groups;s.length>0&&(t.data.groups=JSON.parse(JSON.stringify(s)));const o=this.boundingSphere;return null!==o&&(t.data.boundingSphere={center:o.center.toArray(),radius:o.radius}),t},clone:function(){return(new ki).copy(this)},copy:function(t){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const e={};this.name=t.name;const n=t.index;null!==n&&this.setIndex(n.clone(e));const r=t.attributes;for(const l in r){const t=r[l];this.setAttribute(l,t.clone(e))}const i=t.morphAttributes;for(const l in i){const t=[],n=i[l];for(let r=0,i=n.length;r<i;r++)t.push(n[r].clone(e));this.morphAttributes[l]=t}this.morphTargetsRelative=t.morphTargetsRelative;const s=t.groups;for(let l=0,c=s.length;l<c;l++){const t=s[l];this.addGroup(t.start,t.count,t.materialIndex)}const o=t.boundingBox;null!==o&&(this.boundingBox=o.clone());const a=t.boundingSphere;return null!==a&&(this.boundingSphere=a.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this.userData=t.userData,this},dispose:function(){this.dispatchEvent({type:"dispose"})}});const Vi=new wr,Wi=new br,ji=new dr,qi=new Yn,Xi=new Yn,Yi=new Yn,Zi=new Yn,Ji=new Yn,Qi=new Yn,Ki=new Yn,$i=new Yn,ts=new Yn,es=new On,ns=new On,rs=new On,is=new Yn,ss=new Yn;function os(t=new ki,e=new vi){Xr.call(this),this.type="Mesh",this.geometry=t,this.material=e,this.updateMorphTargets()}function as(t,e,n,r,i,s,o,a){let l;if(null===(l=e.side===p?r.intersectTriangle(o,s,i,!0,a):r.intersectTriangle(i,s,o,e.side!==d,a)))return null;ss.copy(a),ss.applyMatrix4(t.matrixWorld);const c=n.ray.origin.distanceTo(ss);return c<n.near||c>n.far?null:{distance:c,point:ss.clone(),object:t}}function ls(t,e,n,r,i,s,o,a,l,c,h,u){qi.fromBufferAttribute(i,c),Xi.fromBufferAttribute(i,h),Yi.fromBufferAttribute(i,u);const p=t.morphTargetInfluences;if(e.morphTargets&&s&&p){Ki.set(0,0,0),$i.set(0,0,0),ts.set(0,0,0);for(let t=0,e=s.length;t<e;t++){const e=p[t],n=s[t];0!==e&&(Zi.fromBufferAttribute(n,c),Ji.fromBufferAttribute(n,h),Qi.fromBufferAttribute(n,u),o?(Ki.addScaledVector(Zi,e),$i.addScaledVector(Ji,e),ts.addScaledVector(Qi,e)):(Ki.addScaledVector(Zi.sub(qi),e),$i.addScaledVector(Ji.sub(Xi),e),ts.addScaledVector(Qi.sub(Yi),e)))}qi.add(Ki),Xi.add($i),Yi.add(ts)}t.isSkinnedMesh&&e.skinning&&(t.boneTransform(c,qi),t.boneTransform(h,Xi),t.boneTransform(u,Yi));const d=as(t,e,n,r,qi,Xi,Yi,is);if(d){a&&(es.fromBufferAttribute(a,c),ns.fromBufferAttribute(a,h),rs.fromBufferAttribute(a,u),d.uv=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On)),l&&(es.fromBufferAttribute(l,c),ns.fromBufferAttribute(l,h),rs.fromBufferAttribute(l,u),d.uv2=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On));const t={a:c,b:h,c:u,normal:new Yn,materialIndex:0};li.getNormal(qi,Xi,Yi,t.normal),d.face=t}return d}os.prototype=Object.assign(Object.create(Xr.prototype),{constructor:os,isMesh:!0,copy:function(t){return Xr.prototype.copy.call(this,t),void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this.material=t.material,this.geometry=t.geometry,this},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}},raycast:function(t,e){const n=this.geometry,r=this.material,i=this.matrixWorld;if(void 0===r)return;if(null===n.boundingSphere&&n.computeBoundingSphere(),ji.copy(n.boundingSphere),ji.applyMatrix4(i),!1===t.ray.intersectsSphere(ji))return;if(Vi.copy(i).invert(),Wi.copy(t.ray).applyMatrix4(Vi),null!==n.boundingBox&&!1===Wi.intersectsBox(n.boundingBox))return;let s;if(n.isBufferGeometry){const i=n.index,o=n.attributes.position,a=n.morphAttributes.position,l=n.morphTargetsRelative,c=n.attributes.uv,h=n.attributes.uv2,u=n.groups,p=n.drawRange;if(null!==i)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const d=u[n],m=r[d.materialIndex];for(let n=Math.max(d.start,p.start),r=Math.min(d.start+d.count,p.start+p.count);n<r;n+=3){const r=i.getX(n),u=i.getX(n+1),p=i.getX(n+2);(s=ls(this,m,t,Wi,o,a,l,c,h,r,u,p))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=d.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),u=Math.min(i.count,p.start+p.count);n<u;n+=3){const u=i.getX(n),p=i.getX(n+1),d=i.getX(n+2);(s=ls(this,r,t,Wi,o,a,l,c,h,u,p,d))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}else if(void 0!==o)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const i=u[n],d=r[i.materialIndex];for(let n=Math.max(i.start,p.start),r=Math.min(i.start+i.count,p.start+p.count);n<r;n+=3){(s=ls(this,d,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=i.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),i=Math.min(o.count,p.start+p.count);n<i;n+=3){(s=ls(this,r,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}}else n.isGeometry&&console.error("THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}});class cs extends ki{constructor(t=1,e=1,n=1,r=1,i=1,s=1){super(),this.type="BoxGeometry",this.parameters={width:t,height:e,depth:n,widthSegments:r,heightSegments:i,depthSegments:s};const o=this;r=Math.floor(r),i=Math.floor(i),s=Math.floor(s);const a=[],l=[],c=[],h=[];let u=0,p=0;function d(t,e,n,r,i,s,d,m,f,g,x){const v=s/f,y=d/g,_=s/2,b=d/2,w=m/2,M=f+1,S=g+1;let T=0,E=0;const A=new Yn;for(let o=0;o<S;o++){const s=o*y-b;for(let a=0;a<M;a++){const u=a*v-_;A[t]=u*r,A[e]=s*i,A[n]=w,l.push(A.x,A.y,A.z),A[t]=0,A[e]=0,A[n]=m>0?1:-1,c.push(A.x,A.y,A.z),h.push(a/f),h.push(1-o/g),T+=1}}for(let o=0;o<g;o++)for(let t=0;t<f;t++){const e=u+t+M*o,n=u+t+M*(o+1),r=u+(t+1)+M*(o+1),i=u+(t+1)+M*o;a.push(e,n,i),a.push(n,r,i),E+=6}o.addGroup(p,E,x),p+=E,u+=T}d("z","y","x",-1,-1,n,e,t,s,i,0),d("z","y","x",1,-1,n,e,-t,s,i,1),d("x","z","y",1,1,t,n,e,r,s,2),d("x","z","y",1,-1,t,n,-e,r,s,3),d("x","y","z",1,-1,t,e,n,r,i,4),d("x","y","z",-1,-1,t,e,-n,r,i,5),this.setIndex(a),this.setAttribute("position",new Ci(l,3)),this.setAttribute("normal",new Ci(c,3)),this.setAttribute("uv",new Ci(h,2))}}function hs(t){const e={};for(const n in t){e[n]={};for(const r in t[n]){const i=t[n][r];i&&(i.isColor||i.isMatrix3||i.isMatrix4||i.isVector2||i.isVector3||i.isVector4||i.isTexture||i.isQuaternion)?e[n][r]=i.clone():Array.isArray(i)?e[n][r]=i.slice():e[n][r]=i}}return e}function us(t){const e={};for(let n=0;n<t.length;n++){const r=hs(t[n]);for(const t in r)e[t]=r[t]}return e}exports.BoxGeometry=exports.BoxBufferGeometry=cs;const ps={clone:hs,merge:us};exports.UniformsUtils=ps;var ds="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}",ms="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";function fs(t){hi.call(this),this.type="ShaderMaterial",this.defines={},this.uniforms={},this.vertexShader=ds,this.fragmentShader=ms,this.linewidth=1,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.clipping=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.extensions={derivatives:!1,fragDepth:!1,drawBuffers:!1,shaderTextureLOD:!1},this.defaultAttributeValues={color:[1,1,1],uv:[0,0],uv2:[0,0]},this.index0AttributeName=void 0,this.uniformsNeedUpdate=!1,this.glslVersion=null,void 0!==t&&(void 0!==t.attributes&&console.error("THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead."),this.setValues(t))}function gs(){Xr.call(this),this.type="Camera",this.matrixWorldInverse=new wr,this.projectionMatrix=new wr,this.projectionMatrixInverse=new wr}function xs(t=50,e=1,n=.1,r=2e3){gs.call(this),this.type="PerspectiveCamera",this.fov=t,this.zoom=1,this.near=n,this.far=r,this.focus=10,this.aspect=e,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}fs.prototype=Object.create(hi.prototype),fs.prototype.constructor=fs,fs.prototype.isShaderMaterial=!0,fs.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=hs(t.uniforms),this.defines=Object.assign({},t.defines),this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.lights=t.lights,this.clipping=t.clipping,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.extensions=Object.assign({},t.extensions),this.glslVersion=t.glslVersion,this},fs.prototype.toJSON=function(t){const e=hi.prototype.toJSON.call(this,t);e.glslVersion=this.glslVersion,e.uniforms={};for(const r in this.uniforms){const n=this.uniforms[r].value;n&&n.isTexture?e.uniforms[r]={type:"t",value:n.toJSON(t).uuid}:n&&n.isColor?e.uniforms[r]={type:"c",value:n.getHex()}:n&&n.isVector2?e.uniforms[r]={type:"v2",value:n.toArray()}:n&&n.isVector3?e.uniforms[r]={type:"v3",value:n.toArray()}:n&&n.isVector4?e.uniforms[r]={type:"v4",value:n.toArray()}:n&&n.isMatrix3?e.uniforms[r]={type:"m3",value:n.toArray()}:n&&n.isMatrix4?e.uniforms[r]={type:"m4",value:n.toArray()}:e.uniforms[r]={value:n}}Object.keys(this.defines).length>0&&(e.defines=this.defines),e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader;const n={};for(const r in this.extensions)!0===this.extensions[r]&&(n[r]=!0);return Object.keys(n).length>0&&(e.extensions=n),e},gs.prototype=Object.assign(Object.create(Xr.prototype),{constructor:gs,isCamera:!0,copy:function(t,e){return Xr.prototype.copy.call(this,t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this.projectionMatrixInverse.copy(t.projectionMatrixInverse),this},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Camera: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(-e[8],-e[9],-e[10]).normalize()},updateMatrixWorld:function(t){Xr.prototype.updateMatrixWorld.call(this,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()},updateWorldMatrix:function(t,e){Xr.prototype.updateWorldMatrix.call(this,t,e),this.matrixWorldInverse.copy(this.matrixWorld).invert()},clone:function(){return(new this.constructor).copy(this)}}),xs.prototype=Object.assign(Object.create(gs.prototype),{constructor:xs,isPerspectiveCamera:!0,copy:function(t,e){return gs.prototype.copy.call(this,t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this},setFocalLength:function(t){const e=.5*this.getFilmHeight()/t;this.fov=2*Fn.RAD2DEG*Math.atan(e),this.updateProjectionMatrix()},getFocalLength:function(){const t=Math.tan(.5*Fn.DEG2RAD*this.fov);return.5*this.getFilmHeight()/t},getEffectiveFOV:function(){return 2*Fn.RAD2DEG*Math.atan(Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(t,e,n,r,i,s){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){const t=this.near;let e=t*Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom,n=2*e,r=this.aspect*n,i=-.5*r;const s=this.view;if(null!==this.view&&this.view.enabled){const t=s.fullWidth,o=s.fullHeight;i+=s.offsetX*r/t,e-=s.offsetY*n/o,r*=s.width/t,n*=s.height/o}const o=this.filmOffset;0!==o&&(i+=t*o/this.getFilmWidth()),this.projectionMatrix.makePerspective(i,i+r,e,e-n,t,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()},toJSON:function(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}});const vs=90,ys=1;class _s extends Xr{constructor(t,e,n){if(super(),this.type="CubeCamera",!0!==n.isWebGLCubeRenderTarget)return void console.error("THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.");this.renderTarget=n;const r=new xs(vs,ys,t,e);r.layers=this.layers,r.up.set(0,-1,0),r.lookAt(new Yn(1,0,0)),this.add(r);const i=new xs(vs,ys,t,e);i.layers=this.layers,i.up.set(0,-1,0),i.lookAt(new Yn(-1,0,0)),this.add(i);const s=new xs(vs,ys,t,e);s.layers=this.layers,s.up.set(0,0,1),s.lookAt(new Yn(0,1,0)),this.add(s);const o=new xs(vs,ys,t,e);o.layers=this.layers,o.up.set(0,0,-1),o.lookAt(new Yn(0,-1,0)),this.add(o);const a=new xs(vs,ys,t,e);a.layers=this.layers,a.up.set(0,-1,0),a.lookAt(new Yn(0,0,1)),this.add(a);const l=new xs(vs,ys,t,e);l.layers=this.layers,l.up.set(0,-1,0),l.lookAt(new Yn(0,0,-1)),this.add(l)}update(t,e){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget,[r,i,s,o,a,l]=this.children,c=t.xr.enabled,h=t.getRenderTarget();t.xr.enabled=!1;const u=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,t.setRenderTarget(n,0),t.render(e,r),t.setRenderTarget(n,1),t.render(e,i),t.setRenderTarget(n,2),t.render(e,s),t.setRenderTarget(n,3),t.render(e,o),t.setRenderTarget(n,4),t.render(e,a),n.texture.generateMipmaps=u,t.setRenderTarget(n,5),t.render(e,l),t.setRenderTarget(h),t.xr.enabled=c}}exports.CubeCamera=_s;class bs extends kn{constructor(t,e,n,r,i,s,o,a,l,c){super(t=void 0!==t?t:[],e=void 0!==e?e:nt,n,r,i,s,o=void 0!==o?o:Bt,a,l,c),this._needsFlipEnvMap=!0,this.flipY=!1}get images(){return this.image}set images(t){this.image=t}}exports.CubeTexture=bs,bs.prototype.isCubeTexture=!0;class ws extends jn{constructor(t,e,n){Number.isInteger(e)&&(console.warn("THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )"),e=n),super(t,t,e),e=e||{},this.texture=new bs(void 0,e.mapping,e.wrapS,e.wrapT,e.magFilter,e.minFilter,e.format,e.type,e.anisotropy,e.encoding),this.texture.generateMipmaps=void 0!==e.generateMipmaps&&e.generateMipmaps,this.texture.minFilter=void 0!==e.minFilter?e.minFilter:gt,this.texture._needsFlipEnvMap=!1}fromEquirectangularTexture(t,e){this.texture.type=e.type,this.texture.format=Nt,this.texture.encoding=e.encoding,this.texture.generateMipmaps=e.generateMipmaps,this.texture.minFilter=e.minFilter,this.texture.magFilter=e.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include <common>\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},r=new cs(5,5,5),i=new fs({name:"CubemapFromEquirect",uniforms:hs(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:p,blending:g});i.uniforms.tEquirect.value=e;const s=new os(r,i),o=e.minFilter;return e.minFilter===yt&&(e.minFilter=gt),new _s(1,10,this).update(t,s),e.minFilter=o,s.geometry.dispose(),s.material.dispose(),this}clear(t,e,n,r){const i=t.getRenderTarget();for(let s=0;s<6;s++)t.setRenderTarget(this,s),t.clear(e,n,r);t.setRenderTarget(i)}}exports.WebGLCubeRenderTarget=ws,ws.prototype.isWebGLCubeRenderTarget=!0;class Ms extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={data:t||null,width:e||1,height:n||1},this.magFilter=void 0!==l?l:ut,this.minFilter=void 0!==c?c:ut,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.needsUpdate=!0}}exports.DataTexture=Ms,Ms.prototype.isDataTexture=!0;const Ss=new dr,Ts=new Yn;class Es{constructor(t=new Qr,e=new Qr,n=new Qr,r=new Qr,i=new Qr,s=new Qr){this.planes=[t,e,n,r,i,s]}set(t,e,n,r,i,s){const o=this.planes;return o[0].copy(t),o[1].copy(e),o[2].copy(n),o[3].copy(r),o[4].copy(i),o[5].copy(s),this}copy(t){const e=this.planes;for(let n=0;n<6;n++)e[n].copy(t.planes[n]);return this}setFromProjectionMatrix(t){const e=this.planes,n=t.elements,r=n[0],i=n[1],s=n[2],o=n[3],a=n[4],l=n[5],c=n[6],h=n[7],u=n[8],p=n[9],d=n[10],m=n[11],f=n[12],g=n[13],x=n[14],v=n[15];return e[0].setComponents(o-r,h-a,m-u,v-f).normalize(),e[1].setComponents(o+r,h+a,m+u,v+f).normalize(),e[2].setComponents(o+i,h+l,m+p,v+g).normalize(),e[3].setComponents(o-i,h-l,m-p,v-g).normalize(),e[4].setComponents(o-s,h-c,m-d,v-x).normalize(),e[5].setComponents(o+s,h+c,m+d,v+x).normalize(),this}intersectsObject(t){const e=t.geometry;return null===e.boundingSphere&&e.computeBoundingSphere(),Ss.copy(e.boundingSphere).applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSprite(t){return Ss.center.set(0,0,0),Ss.radius=.7071067811865476,Ss.applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSphere(t){const e=this.planes,n=t.center,r=-t.radius;for(let i=0;i<6;i++){if(e[i].distanceToPoint(n)<r)return!1}return!0}intersectsBox(t){const e=this.planes;for(let n=0;n<6;n++){const r=e[n];if(Ts.x=r.normal.x>0?t.max.x:t.min.x,Ts.y=r.normal.y>0?t.max.y:t.min.y,Ts.z=r.normal.z>0?t.max.z:t.min.z,r.distanceToPoint(Ts)<0)return!1}return!0}containsPoint(t){const e=this.planes;for(let n=0;n<6;n++)if(e[n].distanceToPoint(t)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function As(){let t=null,e=!1,n=null,r=null;function i(e,s){n(e,s),r=t.requestAnimationFrame(i)}return{start:function(){!0!==e&&null!==n&&(r=t.requestAnimationFrame(i),e=!0)},stop:function(){t.cancelAnimationFrame(r),e=!1},setAnimationLoop:function(t){n=t},setContext:function(e){t=e}}}function Ls(t,e){const n=e.isWebGL2,r=new WeakMap;return{get:function(t){return t.isInterleavedBufferAttribute&&(t=t.data),r.get(t)},remove:function(e){e.isInterleavedBufferAttribute&&(e=e.data);const n=r.get(e);n&&(t.deleteBuffer(n.buffer),r.delete(e))},update:function(e,i){if(e.isGLBufferAttribute){const t=r.get(e);return void((!t||t.version<e.version)&&r.set(e,{buffer:e.buffer,type:e.type,bytesPerElement:e.elementSize,version:e.version}))}e.isInterleavedBufferAttribute&&(e=e.data);const s=r.get(e);void 0===s?r.set(e,function(e,r){const i=e.array,s=e.usage,o=t.createBuffer();t.bindBuffer(r,o),t.bufferData(r,i,s),e.onUploadCallback();let a=5126;return i instanceof Float32Array?a=5126:i instanceof Float64Array?console.warn("THREE.WebGLAttributes: Unsupported data buffer format: Float64Array."):i instanceof Uint16Array?e.isFloat16BufferAttribute?n?a=5131:console.warn("THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2."):a=5123:i instanceof Int16Array?a=5122:i instanceof Uint32Array?a=5125:i instanceof Int32Array?a=5124:i instanceof Int8Array?a=5120:i instanceof Uint8Array&&(a=5121),{buffer:o,type:a,bytesPerElement:i.BYTES_PER_ELEMENT,version:e.version}}(e,i)):s.version<e.version&&(function(e,r,i){const s=r.array,o=r.updateRange;t.bindBuffer(i,e),-1===o.count?t.bufferSubData(i,0,s):(n?t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s,o.offset,o.count):t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s.subarray(o.offset,o.offset+o.count)),o.count=-1)}(s.buffer,e,i),s.version=e.version)}}}exports.Frustum=Es;class Rs extends ki{constructor(t=1,e=1,n=1,r=1){super(),this.type="PlaneGeometry",this.parameters={width:t,height:e,widthSegments:n,heightSegments:r};const i=t/2,s=e/2,o=Math.floor(n),a=Math.floor(r),l=o+1,c=a+1,h=t/o,u=e/a,p=[],d=[],m=[],f=[];for(let g=0;g<c;g++){const t=g*u-s;for(let e=0;e<l;e++){const n=e*h-i;d.push(n,-t,0),m.push(0,0,1),f.push(e/o),f.push(1-g/a)}}for(let g=0;g<a;g++)for(let t=0;t<o;t++){const e=t+l*g,n=t+l*(g+1),r=t+1+l*(g+1),i=t+1+l*g;p.push(e,n,i),p.push(n,r,i)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.PlaneGeometry=exports.PlaneBufferGeometry=Rs;var Cs="#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif",Ps="#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",Ds="#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif",Is="#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif",Bs="#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",Ns="vec3 transformed = vec3( position );",Fs="vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif",Os="vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif",zs="#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif",Gs="#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",Hs="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",Us="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",ks="#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",Vs="#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif",Ws="#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif",js="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",qs="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",Xs="#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}",Ys="#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",Zs="vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",Js="#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",Qs="#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif",Ks="#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",$s="#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",to="gl_FragColor = linearToOutputTexel( gl_FragColor );",eo="\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}",no="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",ro="#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",io="#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",so="#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",oo="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",ao="#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif",lo="#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif",co="#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",ho="#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",uo="#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}",po="#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif",mo="#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",fo="vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif",go="uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif",xo="#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif",vo="ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",yo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)",_o="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",bo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)",wo="PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif",Mo="struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",So="\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",To="#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif",Eo="#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",Ao="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",Lo="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",Ro="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",Co="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",Po="#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif",Do="#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",Io="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",Bo="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",No="float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",Fo="#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",Oo="#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif",zo="#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif",Go="#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif",Ho="float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;",Uo="#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",ko="#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif",Vo="#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",Wo="#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif",jo="#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif",qo="vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}",Xo="#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",Yo="vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",Zo="#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",Jo="#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",Qo="float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",Ko="#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",$o="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",ta="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",ea="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif",na="float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",ra="#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",ia="#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif",sa="#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",oa="#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",aa="float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",la="#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",ca="#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",ha="#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",ua="#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif",pa="#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif",da="#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif",ma="#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif",fa="#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif",ga="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif",xa="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif",va="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif",ya="#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",_a="uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",ba="varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",wa="#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ma="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",Sa="#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",Ta="#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}",Ea="#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",Aa="#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}",La="uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ra="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}",Ca="uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Pa="uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",Da="uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ia="#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}",Ba="uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Na="#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Fa="#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Oa="#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}",za="#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ga="#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ha="#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ua="#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",ka="#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Va="#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Wa="#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}",ja="#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",qa="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Xa="uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}",Ya="uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Za="#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ja="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Qa="uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";const Ka={alphamap_fragment:Cs,alphamap_pars_fragment:Ps,alphatest_fragment:Ds,aomap_fragment:Is,aomap_pars_fragment:Bs,begin_vertex:Ns,beginnormal_vertex:Fs,bsdfs:Os,bumpmap_pars_fragment:zs,clipping_planes_fragment:Gs,clipping_planes_pars_fragment:Hs,clipping_planes_pars_vertex:Us,clipping_planes_vertex:ks,color_fragment:Vs,color_pars_fragment:Ws,color_pars_vertex:js,color_vertex:qs,common:Xs,cube_uv_reflection_fragment:Ys,defaultnormal_vertex:Zs,displacementmap_pars_vertex:Js,displacementmap_vertex:Qs,emissivemap_fragment:Ks,emissivemap_pars_fragment:$s,encodings_fragment:to,encodings_pars_fragment:eo,envmap_fragment:no,envmap_common_pars_fragment:ro,envmap_pars_fragment:io,envmap_pars_vertex:so,envmap_physical_pars_fragment:xo,envmap_vertex:oo,fog_vertex:ao,fog_pars_vertex:lo,fog_fragment:co,fog_pars_fragment:ho,gradientmap_pars_fragment:uo,lightmap_fragment:po,lightmap_pars_fragment:mo,lights_lambert_vertex:fo,lights_pars_begin:go,lights_toon_fragment:vo,lights_toon_pars_fragment:yo,lights_phong_fragment:_o,lights_phong_pars_fragment:bo,lights_physical_fragment:wo,lights_physical_pars_fragment:Mo,lights_fragment_begin:So,lights_fragment_maps:To,lights_fragment_end:Eo,logdepthbuf_fragment:Ao,logdepthbuf_pars_fragment:Lo,logdepthbuf_pars_vertex:Ro,logdepthbuf_vertex:Co,map_fragment:Po,map_pars_fragment:Do,map_particle_fragment:Io,map_particle_pars_fragment:Bo,metalnessmap_fragment:No,metalnessmap_pars_fragment:Fo,morphnormal_vertex:Oo,morphtarget_pars_vertex:zo,morphtarget_vertex:Go,normal_fragment_begin:Ho,normal_fragment_maps:Uo,normalmap_pars_fragment:ko,clearcoat_normal_fragment_begin:Vo,clearcoat_normal_fragment_maps:Wo,clearcoat_pars_fragment:jo,packing:qo,premultiplied_alpha_fragment:Xo,project_vertex:Yo,dithering_fragment:Zo,dithering_pars_fragment:Jo,roughnessmap_fragment:Qo,roughnessmap_pars_fragment:Ko,shadowmap_pars_fragment:$o,shadowmap_pars_vertex:ta,shadowmap_vertex:ea,shadowmask_pars_fragment:na,skinbase_vertex:ra,skinning_pars_vertex:ia,skinning_vertex:sa,skinnormal_vertex:oa,specularmap_fragment:aa,specularmap_pars_fragment:la,tonemapping_fragment:ca,tonemapping_pars_fragment:ha,transmissionmap_fragment:ua,transmissionmap_pars_fragment:pa,uv_pars_fragment:da,uv_pars_vertex:ma,uv_vertex:fa,uv2_pars_fragment:ga,uv2_pars_vertex:xa,uv2_vertex:va,worldpos_vertex:ya,background_frag:_a,background_vert:ba,cube_frag:wa,cube_vert:Ma,depth_frag:Sa,depth_vert:Ta,distanceRGBA_frag:Ea,distanceRGBA_vert:Aa,equirect_frag:La,equirect_vert:Ra,linedashed_frag:Ca,linedashed_vert:Pa,meshbasic_frag:Da,meshbasic_vert:Ia,meshlambert_frag:Ba,meshlambert_vert:Na,meshmatcap_frag:Fa,meshmatcap_vert:Oa,meshtoon_frag:za,meshtoon_vert:Ga,meshphong_frag:Ha,meshphong_vert:Ua,meshphysical_frag:ka,meshphysical_vert:Va,normal_frag:Wa,normal_vert:ja,points_frag:qa,points_vert:Xa,shadow_frag:Ya,shadow_vert:Za,sprite_frag:Ja,sprite_vert:Qa};exports.ShaderChunk=Ka;const $a={common:{diffuse:{value:new xi(15658734)},opacity:{value:1},map:{value:null},uvTransform:{value:new zn},uv2Transform:{value:new zn},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98},maxMipLevel:{value:0}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new On(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new xi(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new xi(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}},sprite:{diffuse:{value:new xi(15658734)},opacity:{value:1},center:{value:new On(.5,.5)},rotation:{value:0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}}};exports.UniformsLib=$a;const tl={basic:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.fog]),vertexShader:Ka.meshbasic_vert,fragmentShader:Ka.meshbasic_frag},lambert:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshlambert_vert,fragmentShader:Ka.meshlambert_frag},phong:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},specular:{value:new xi(1118481)},shininess:{value:30}}]),vertexShader:Ka.meshphong_vert,fragmentShader:Ka.meshphong_frag},standard:{uniforms:us([$a.common,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.roughnessmap,$a.metalnessmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag},toon:{uniforms:us([$a.common,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.gradientmap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshtoon_vert,fragmentShader:Ka.meshtoon_frag},matcap:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,{matcap:{value:null}}]),vertexShader:Ka.meshmatcap_vert,fragmentShader:Ka.meshmatcap_frag},points:{uniforms:us([$a.points,$a.fog]),vertexShader:Ka.points_vert,fragmentShader:Ka.points_frag},dashed:{uniforms:us([$a.common,$a.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:Ka.linedashed_vert,fragmentShader:Ka.linedashed_frag},depth:{uniforms:us([$a.common,$a.displacementmap]),vertexShader:Ka.depth_vert,fragmentShader:Ka.depth_frag},normal:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,{opacity:{value:1}}]),vertexShader:Ka.normal_vert,fragmentShader:Ka.normal_frag},sprite:{uniforms:us([$a.sprite,$a.fog]),vertexShader:Ka.sprite_vert,fragmentShader:Ka.sprite_frag},background:{uniforms:{uvTransform:{value:new zn},t2D:{value:null}},vertexShader:Ka.background_vert,fragmentShader:Ka.background_frag},cube:{uniforms:us([$a.envmap,{opacity:{value:1}}]),vertexShader:Ka.cube_vert,fragmentShader:Ka.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:Ka.equirect_vert,fragmentShader:Ka.equirect_frag},distanceRGBA:{uniforms:us([$a.common,$a.displacementmap,{referencePosition:{value:new Yn},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:Ka.distanceRGBA_vert,fragmentShader:Ka.distanceRGBA_frag},shadow:{uniforms:us([$a.lights,$a.fog,{color:{value:new xi(0)},opacity:{value:1}}]),vertexShader:Ka.shadow_vert,fragmentShader:Ka.shadow_frag}};function el(t,e,n,r,i){const s=new xi(0);let o,a,l=0,c=null,h=0,d=null;function m(t,e){n.buffers.color.setClear(t.r,t.g,t.b,e,i)}return{getClearColor:function(){return s},setClearColor:function(t,e=1){s.set(t),m(s,l=e)},getClearAlpha:function(){return l},setClearAlpha:function(t){m(s,l=t)},render:function(n,i,f,g){let x=!0===i.isScene?i.background:null;x&&x.isTexture&&(x=e.get(x));const v=t.xr,y=v.getSession&&v.getSession();y&&"additive"===y.environmentBlendMode&&(x=null),null===x?m(s,l):x&&x.isColor&&(m(x,1),g=!0),(t.autoClear||g)&&t.clear(t.autoClearColor,t.autoClearDepth,t.autoClearStencil),x&&(x.isCubeTexture||x.isWebGLCubeRenderTarget||x.mapping===ot)?(void 0===a&&((a=new os(new cs(1,1,1),new fs({name:"BackgroundCubeMaterial",uniforms:hs(tl.cube.uniforms),vertexShader:tl.cube.vertexShader,fragmentShader:tl.cube.fragmentShader,side:p,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),a.geometry.deleteAttribute("uv"),a.onBeforeRender=function(t,e,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(a.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(a)),x.isWebGLCubeRenderTarget&&(x=x.texture),a.material.uniforms.envMap.value=x,a.material.uniforms.flipEnvMap.value=x.isCubeTexture&&x._needsFlipEnvMap?-1:1,c===x&&h===x.version&&d===t.toneMapping||(a.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(a,a.geometry,a.material,0,0,null)):x&&x.isTexture&&(void 0===o&&((o=new os(new Rs(2,2),new fs({name:"BackgroundMaterial",uniforms:hs(tl.background.uniforms),vertexShader:tl.background.vertexShader,fragmentShader:tl.background.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),Object.defineProperty(o.material,"map",{get:function(){return this.uniforms.t2D.value}}),r.update(o)),o.material.uniforms.t2D.value=x,!0===x.matrixAutoUpdate&&x.updateMatrix(),o.material.uniforms.uvTransform.value.copy(x.matrix),c===x&&h===x.version&&d===t.toneMapping||(o.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(o,o.geometry,o.material,0,0,null))}}}function nl(t,e,n,r){const i=t.getParameter(34921),s=r.isWebGL2?null:e.get("OES_vertex_array_object"),o=r.isWebGL2||null!==s,a={},l=p(null);let c=l;function h(e){return r.isWebGL2?t.bindVertexArray(e):s.bindVertexArrayOES(e)}function u(e){return r.isWebGL2?t.deleteVertexArray(e):s.deleteVertexArrayOES(e)}function p(t){const e=[],n=[],r=[];for(let s=0;s<i;s++)e[s]=0,n[s]=0,r[s]=0;return{geometry:null,program:null,wireframe:!1,newAttributes:e,enabledAttributes:n,attributeDivisors:r,object:t,attributes:{},index:null}}function d(){const t=c.newAttributes;for(let e=0,n=t.length;e<n;e++)t[e]=0}function m(t){f(t,0)}function f(n,i){const s=c.newAttributes,o=c.enabledAttributes,a=c.attributeDivisors;if(s[n]=1,0===o[n]&&(t.enableVertexAttribArray(n),o[n]=1),a[n]!==i){(r.isWebGL2?t:e.get("ANGLE_instanced_arrays"))[r.isWebGL2?"vertexAttribDivisor":"vertexAttribDivisorANGLE"](n,i),a[n]=i}}function g(){const e=c.newAttributes,n=c.enabledAttributes;for(let r=0,i=n.length;r<i;r++)n[r]!==e[r]&&(t.disableVertexAttribArray(r),n[r]=0)}function x(e,n,i,s,o,a){!0!==r.isWebGL2||5124!==i&&5125!==i?t.vertexAttribPointer(e,n,i,s,o,a):t.vertexAttribIPointer(e,n,i,o,a)}function v(){y(),c!==l&&h((c=l).object)}function y(){l.geometry=null,l.program=null,l.wireframe=!1}return{setup:function(i,l,u,v,y){let _=!1;if(o){const e=function(e,n,i){const o=!0===i.wireframe;let l=a[e.id];void 0===l&&(l={},a[e.id]=l);let c=l[n.id];void 0===c&&(c={},l[n.id]=c);let h=c[o];return void 0===h&&(h=p(r.isWebGL2?t.createVertexArray():s.createVertexArrayOES()),c[o]=h),h}(v,u,l);c!==e&&h((c=e).object),(_=function(t,e){const n=c.attributes,r=t.attributes;let i=0;for(const s in r){const t=n[s],e=r[s];if(void 0===t)return!0;if(t.attribute!==e)return!0;if(t.data!==e.data)return!0;i++}return c.attributesNum!==i||c.index!==e}(v,y))&&function(t,e){const n={},r=t.attributes;let i=0;for(const s in r){const t=r[s],e={};e.attribute=t,t.data&&(e.data=t.data),n[s]=e,i++}c.attributes=n,c.attributesNum=i,c.index=e}(v,y)}else{const t=!0===l.wireframe;c.geometry===v.id&&c.program===u.id&&c.wireframe===t||(c.geometry=v.id,c.program=u.id,c.wireframe=t,_=!0)}!0===i.isInstancedMesh&&(_=!0),null!==y&&n.update(y,34963),_&&(function(i,s,o,a){if(!1===r.isWebGL2&&(i.isInstancedMesh||a.isInstancedBufferGeometry)&&null===e.get("ANGLE_instanced_arrays"))return;d();const l=a.attributes,c=o.getAttributes(),h=s.defaultAttributeValues;for(const e in c){const r=c[e];if(r>=0){const s=l[e];if(void 0!==s){const e=s.normalized,i=s.itemSize,o=n.get(s);if(void 0===o)continue;const l=o.buffer,c=o.type,h=o.bytesPerElement;if(s.isInterleavedBufferAttribute){const n=s.data,o=n.stride,u=s.offset;n&&n.isInstancedInterleavedBuffer?(f(r,n.meshPerAttribute),void 0===a._maxInstanceCount&&(a._maxInstanceCount=n.meshPerAttribute*n.count)):m(r),t.bindBuffer(34962,l),x(r,i,c,e,o*h,u*h)}else s.isInstancedBufferAttribute?(f(r,s.meshPerAttribute),void 0===a._maxInstanceCount&&(a._maxInstanceCount=s.meshPerAttribute*s.count)):m(r),t.bindBuffer(34962,l),x(r,i,c,e,0,0)}else if("instanceMatrix"===e){const e=n.get(i.instanceMatrix);if(void 0===e)continue;const s=e.buffer,o=e.type;f(r+0,1),f(r+1,1),f(r+2,1),f(r+3,1),t.bindBuffer(34962,s),t.vertexAttribPointer(r+0,4,o,!1,64,0),t.vertexAttribPointer(r+1,4,o,!1,64,16),t.vertexAttribPointer(r+2,4,o,!1,64,32),t.vertexAttribPointer(r+3,4,o,!1,64,48)}else if("instanceColor"===e){const e=n.get(i.instanceColor);if(void 0===e)continue;const s=e.buffer,o=e.type;f(r,1),t.bindBuffer(34962,s),t.vertexAttribPointer(r,3,o,!1,12,0)}else if(void 0!==h){const n=h[e];if(void 0!==n)switch(n.length){case 2:t.vertexAttrib2fv(r,n);break;case 3:t.vertexAttrib3fv(r,n);break;case 4:t.vertexAttrib4fv(r,n);break;default:t.vertexAttrib1fv(r,n)}}}}g()}(i,l,u,v),null!==y&&t.bindBuffer(34963,n.get(y).buffer))},reset:v,resetDefaultState:y,dispose:function(){v();for(const t in a){const e=a[t];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete a[t]}},releaseStatesOfGeometry:function(t){if(void 0===a[t.id])return;const e=a[t.id];for(const n in e){const t=e[n];for(const e in t)u(t[e].object),delete t[e];delete e[n]}delete a[t.id]},releaseStatesOfProgram:function(t){for(const e in a){const n=a[e];if(void 0===n[t.id])continue;const r=n[t.id];for(const t in r)u(r[t].object),delete r[t];delete n[t.id]}},initAttributes:d,enableAttribute:m,disableUnusedAttributes:g}}function rl(t,e,n,r){const i=r.isWebGL2;let s;this.setMode=function(t){s=t},this.render=function(e,r){t.drawArrays(s,e,r),n.update(r,s,1)},this.renderInstances=function(r,o,a){if(0===a)return;let l,c;if(i)l=t,c="drawArraysInstanced";else if(c="drawArraysInstancedANGLE",null===(l=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");l[c](s,r,o,a),n.update(o,s,a)}}function il(t,e,n){let r;function i(e){if("highp"===e){if(t.getShaderPrecisionFormat(35633,36338).precision>0&&t.getShaderPrecisionFormat(35632,36338).precision>0)return"highp";e="mediump"}return"mediump"===e&&t.getShaderPrecisionFormat(35633,36337).precision>0&&t.getShaderPrecisionFormat(35632,36337).precision>0?"mediump":"lowp"}const s="undefined"!=typeof WebGL2RenderingContext&&t instanceof WebGL2RenderingContext||"undefined"!=typeof WebGL2ComputeRenderingContext&&t instanceof WebGL2ComputeRenderingContext;let o=void 0!==n.precision?n.precision:"highp";const a=i(o);a!==o&&(console.warn("THREE.WebGLRenderer:",o,"not supported, using",a,"instead."),o=a);const l=!0===n.logarithmicDepthBuffer,c=t.getParameter(34930),h=t.getParameter(35660),u=t.getParameter(3379),p=t.getParameter(34076),d=t.getParameter(34921),m=t.getParameter(36347),f=t.getParameter(36348),g=t.getParameter(36349),x=h>0,v=s||e.has("OES_texture_float");return{isWebGL2:s,getMaxAnisotropy:function(){if(void 0!==r)return r;if(!0===e.has("EXT_texture_filter_anisotropic")){const n=e.get("EXT_texture_filter_anisotropic");r=t.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else r=0;return r},getMaxPrecision:i,precision:o,logarithmicDepthBuffer:l,maxTextures:c,maxVertexTextures:h,maxTextureSize:u,maxCubemapSize:p,maxAttributes:d,maxVertexUniforms:m,maxVaryings:f,maxFragmentUniforms:g,vertexTextures:x,floatFragmentTextures:v,floatVertexTextures:x&&v,maxSamples:s?t.getParameter(36183):0}}function sl(t){const e=this;let n=null,r=0,i=!1,s=!1;const o=new Qr,a=new zn,l={value:null,needsUpdate:!1};function c(){l.value!==n&&(l.value=n,l.needsUpdate=r>0),e.numPlanes=r,e.numIntersection=0}function h(t,n,r,i){const s=null!==t?t.length:0;let c=null;if(0!==s){if(c=l.value,!0!==i||null===c){const e=r+4*s,i=n.matrixWorldInverse;a.getNormalMatrix(i),(null===c||c.length<e)&&(c=new Float32Array(e));for(let n=0,l=r;n!==s;++n,l+=4)o.copy(t[n]).applyMatrix4(i,a),o.normal.toArray(c,l),c[l+3]=o.constant}l.value=c,l.needsUpdate=!0}return e.numPlanes=s,e.numIntersection=0,c}this.uniform=l,this.numPlanes=0,this.numIntersection=0,this.init=function(t,e,s){const o=0!==t.length||e||0!==r||i;return i=e,n=h(t,s,0),r=t.length,o},this.beginShadows=function(){s=!0,h(null)},this.endShadows=function(){s=!1,c()},this.setState=function(e,o,a){const u=e.clippingPlanes,p=e.clipIntersection,d=e.clipShadows,m=t.get(e);if(!i||null===u||0===u.length||s&&!d)s?h(null):c();else{const t=s?0:r,e=4*t;let i=m.clippingState||null;l.value=i,i=h(u,o,e,a);for(let r=0;r!==e;++r)i[r]=n[r];m.clippingState=i,this.numIntersection=p?this.numPlanes:0,this.numPlanes+=t}}}function ol(t){let e=new WeakMap;function n(t,e){return e===it?t.mapping=nt:e===st&&(t.mapping=rt),t}function r(t){const n=t.target;n.removeEventListener("dispose",r);const i=e.get(n);void 0!==i&&(e.delete(n),i.dispose())}return{get:function(i){if(i&&i.isTexture){const s=i.mapping;if(s===it||s===st){if(e.has(i))return n(e.get(i).texture,i.mapping);{const s=i.image;if(s&&s.height>0){const o=t.getRenderTarget(),a=new ws(s.height/2);return a.fromEquirectangularTexture(t,i),e.set(i,a),t.setRenderTarget(o),i.addEventListener("dispose",r),n(a.texture,i.mapping)}return null}}}return i},dispose:function(){e=new WeakMap}}}function al(t){const e={};function n(n){if(void 0!==e[n])return e[n];let r;switch(n){case"WEBGL_depth_texture":r=t.getExtension("WEBGL_depth_texture")||t.getExtension("MOZ_WEBGL_depth_texture")||t.getExtension("WEBKIT_WEBGL_depth_texture");break;case"EXT_texture_filter_anisotropic":r=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case"WEBGL_compressed_texture_s3tc":r=t.getExtension("WEBGL_compressed_texture_s3tc")||t.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case"WEBGL_compressed_texture_pvrtc":r=t.getExtension("WEBGL_compressed_texture_pvrtc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:r=t.getExtension(n)}return e[n]=r,r}return{has:function(t){return null!==n(t)},init:function(t){t.isWebGL2?n("EXT_color_buffer_float"):(n("WEBGL_depth_texture"),n("OES_texture_float"),n("OES_texture_half_float"),n("OES_texture_half_float_linear"),n("OES_standard_derivatives"),n("OES_element_index_uint"),n("OES_vertex_array_object"),n("ANGLE_instanced_arrays")),n("OES_texture_float_linear"),n("EXT_color_buffer_half_float")},get:function(t){const e=n(t);return null===e&&console.warn("THREE.WebGLRenderer: "+t+" extension not supported."),e}}}function ll(t,e,n,r){const i={},s=new WeakMap;function o(t){const a=t.target;null!==a.index&&e.remove(a.index);for(const n in a.attributes)e.remove(a.attributes[n]);a.removeEventListener("dispose",o),delete i[a.id];const l=s.get(a);l&&(e.remove(l),s.delete(a)),r.releaseStatesOfGeometry(a),!0===a.isInstancedBufferGeometry&&delete a._maxInstanceCount,n.memory.geometries--}function a(t){const n=[],r=t.index,i=t.attributes.position;let o=0;if(null!==r){const t=r.array;o=r.version;for(let e=0,r=t.length;e<r;e+=3){const r=t[e+0],i=t[e+1],s=t[e+2];n.push(r,i,i,s,s,r)}}else{const t=i.array;o=i.version;for(let e=0,r=t.length/3-1;e<r;e+=3){const t=e+0,r=e+1,i=e+2;n.push(t,r,r,i,i,t)}}const a=new(Di(n)>65535?Li:Ei)(n,1);a.version=o;const l=s.get(t);l&&e.remove(l),s.set(t,a)}return{get:function(t,e){return!0===i[e.id]?e:(e.addEventListener("dispose",o),i[e.id]=!0,n.memory.geometries++,e)},update:function(t){const n=t.attributes;for(const i in n)e.update(n[i],34962);const r=t.morphAttributes;for(const i in r){const t=r[i];for(let n=0,r=t.length;n<r;n++)e.update(t[n],34962)}},getWireframeAttribute:function(t){const e=s.get(t);if(e){const n=t.index;null!==n&&e.version<n.version&&a(t)}else a(t);return s.get(t)}}}function cl(t,e,n,r){const i=r.isWebGL2;let s,o,a;this.setMode=function(t){s=t},this.setIndex=function(t){o=t.type,a=t.bytesPerElement},this.render=function(e,r){t.drawElements(s,r,o,e*a),n.update(r,s,1)},this.renderInstances=function(r,l,c){if(0===c)return;let h,u;if(i)h=t,u="drawElementsInstanced";else if(u="drawElementsInstancedANGLE",null===(h=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");h[u](s,l,o,r*a,c),n.update(l,s,c)}}function hl(t){const e={frame:0,calls:0,triangles:0,points:0,lines:0};return{memory:{geometries:0,textures:0},render:e,programs:null,autoReset:!0,reset:function(){e.frame++,e.calls=0,e.triangles=0,e.points=0,e.lines=0},update:function(t,n,r){switch(e.calls++,n){case 4:e.triangles+=r*(t/3);break;case 1:e.lines+=r*(t/2);break;case 3:e.lines+=r*(t-1);break;case 2:e.lines+=r*t;break;case 0:e.points+=r*t;break;default:console.error("THREE.WebGLInfo: Unknown draw mode:",n)}}}}function ul(t,e){return t[0]-e[0]}function pl(t,e){return Math.abs(e[1])-Math.abs(t[1])}function dl(t){const e={},n=new Float32Array(8),r=[];for(let i=0;i<8;i++)r[i]=[i,0];return{update:function(i,s,o,a){const l=i.morphTargetInfluences,c=void 0===l?0:l.length;let h=e[s.id];if(void 0===h){h=[];for(let t=0;t<c;t++)h[t]=[t,0];e[s.id]=h}for(let t=0;t<c;t++){const e=h[t];e[0]=t,e[1]=l[t]}h.sort(pl);for(let t=0;t<8;t++)t<c&&h[t][1]?(r[t][0]=h[t][0],r[t][1]=h[t][1]):(r[t][0]=Number.MAX_SAFE_INTEGER,r[t][1]=0);r.sort(ul);const u=o.morphTargets&&s.morphAttributes.position,p=o.morphNormals&&s.morphAttributes.normal;let d=0;for(let t=0;t<8;t++){const e=r[t],i=e[0],o=e[1];i!==Number.MAX_SAFE_INTEGER&&o?(u&&s.getAttribute("morphTarget"+t)!==u[i]&&s.setAttribute("morphTarget"+t,u[i]),p&&s.getAttribute("morphNormal"+t)!==p[i]&&s.setAttribute("morphNormal"+t,p[i]),n[t]=o,d+=o):(u&&!0===s.hasAttribute("morphTarget"+t)&&s.deleteAttribute("morphTarget"+t),p&&!0===s.hasAttribute("morphNormal"+t)&&s.deleteAttribute("morphNormal"+t),n[t]=0)}const m=s.morphTargetsRelative?1:1-d;a.getUniforms().setValue(t,"morphTargetBaseInfluence",m),a.getUniforms().setValue(t,"morphTargetInfluences",n)}}}function ml(t,e,n,r){let i=new WeakMap;function s(t){const e=t.target;e.removeEventListener("dispose",s),n.remove(e.instanceMatrix),null!==e.instanceColor&&n.remove(e.instanceColor)}return{update:function(t){const o=r.render.frame,a=t.geometry,l=e.get(t,a);return i.get(l)!==o&&(e.update(l),i.set(l,o)),t.isInstancedMesh&&(!1===t.hasEventListener("dispose",s)&&t.addEventListener("dispose",s),n.update(t.instanceMatrix,34962),null!==t.instanceColor&&n.update(t.instanceColor,34962)),l},dispose:function(){i=new WeakMap}}}exports.ShaderLib=tl,tl.physical={uniforms:us([tl.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatNormalScale:{value:new On(1,1)},clearcoatNormalMap:{value:null},sheen:{value:new xi(0)},transmission:{value:0},transmissionMap:{value:null}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag};class fl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture2DArray=fl,fl.prototype.isDataTexture2DArray=!0;class gl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture3D=gl,gl.prototype.isDataTexture3D=!0;const xl=new kn,vl=new fl,yl=new gl,_l=new bs,bl=[],wl=[],Ml=new Float32Array(16),Sl=new Float32Array(9),Tl=new Float32Array(4);function El(t,e,n){const r=t[0];if(r<=0||r>0)return t;const i=e*n;let s=bl[i];if(void 0===s&&(s=new Float32Array(i),bl[i]=s),0!==e){r.toArray(s,0);for(let r=1,i=0;r!==e;++r)i+=n,t[r].toArray(s,i)}return s}function Al(t,e){if(t.length!==e.length)return!1;for(let n=0,r=t.length;n<r;n++)if(t[n]!==e[n])return!1;return!0}function Ll(t,e){for(let n=0,r=e.length;n<r;n++)t[n]=e[n]}function Rl(t,e){let n=wl[e];void 0===n&&(n=new Int32Array(e),wl[e]=n);for(let r=0;r!==e;++r)n[r]=t.allocateTextureUnit();return n}function Cl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1f(this.addr,e),n[0]=e)}function Pl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y||(t.uniform2f(this.addr,e.x,e.y),n[0]=e.x,n[1]=e.y);else{if(Al(n,e))return;t.uniform2fv(this.addr,e),Ll(n,e)}}function Dl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z||(t.uniform3f(this.addr,e.x,e.y,e.z),n[0]=e.x,n[1]=e.y,n[2]=e.z);else if(void 0!==e.r)n[0]===e.r&&n[1]===e.g&&n[2]===e.b||(t.uniform3f(this.addr,e.r,e.g,e.b),n[0]=e.r,n[1]=e.g,n[2]=e.b);else{if(Al(n,e))return;t.uniform3fv(this.addr,e),Ll(n,e)}}function Il(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z&&n[3]===e.w||(t.uniform4f(this.addr,e.x,e.y,e.z,e.w),n[0]=e.x,n[1]=e.y,n[2]=e.z,n[3]=e.w);else{if(Al(n,e))return;t.uniform4fv(this.addr,e),Ll(n,e)}}function Bl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix2fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Tl.set(r),t.uniformMatrix2fv(this.addr,!1,Tl),Ll(n,r)}}function Nl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix3fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Sl.set(r),t.uniformMatrix3fv(this.addr,!1,Sl),Ll(n,r)}}function Fl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix4fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Ml.set(r),t.uniformMatrix4fv(this.addr,!1,Ml),Ll(n,r)}}function Ol(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTexture2D(e||xl,i)}function zl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture2DArray(e||vl,i)}function Gl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture3D(e||yl,i)}function Hl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTextureCube(e||_l,i)}function Ul(t,e){const n=this.cache;n[0]!==e&&(t.uniform1i(this.addr,e),n[0]=e)}function kl(t,e){const n=this.cache;Al(n,e)||(t.uniform2iv(this.addr,e),Ll(n,e))}function Vl(t,e){const n=this.cache;Al(n,e)||(t.uniform3iv(this.addr,e),Ll(n,e))}function Wl(t,e){const n=this.cache;Al(n,e)||(t.uniform4iv(this.addr,e),Ll(n,e))}function jl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1ui(this.addr,e),n[0]=e)}function ql(t){switch(t){case 5126:return Cl;case 35664:return Pl;case 35665:return Dl;case 35666:return Il;case 35674:return Bl;case 35675:return Nl;case 35676:return Fl;case 5124:case 35670:return Ul;case 35667:case 35671:return kl;case 35668:case 35672:return Vl;case 35669:case 35673:return Wl;case 5125:return jl;case 35678:case 36198:case 36298:case 36306:case 35682:return Ol;case 35679:case 36299:case 36307:return Gl;case 35680:case 36300:case 36308:case 36293:return Hl;case 36289:case 36303:case 36311:case 36292:return zl}}function Xl(t,e){t.uniform1fv(this.addr,e)}function Yl(t,e){t.uniform1iv(this.addr,e)}function Zl(t,e){t.uniform2iv(this.addr,e)}function Jl(t,e){t.uniform3iv(this.addr,e)}function Ql(t,e){t.uniform4iv(this.addr,e)}function Kl(t,e){const n=El(e,this.size,2);t.uniform2fv(this.addr,n)}function $l(t,e){const n=El(e,this.size,3);t.uniform3fv(this.addr,n)}function tc(t,e){const n=El(e,this.size,4);t.uniform4fv(this.addr,n)}function ec(t,e){const n=El(e,this.size,4);t.uniformMatrix2fv(this.addr,!1,n)}function nc(t,e){const n=El(e,this.size,9);t.uniformMatrix3fv(this.addr,!1,n)}function rc(t,e){const n=El(e,this.size,16);t.uniformMatrix4fv(this.addr,!1,n)}function ic(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTexture2D(e[s]||xl,i[s])}function sc(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTextureCube(e[s]||_l,i[s])}function oc(t){switch(t){case 5126:return Xl;case 35664:return Kl;case 35665:return $l;case 35666:return tc;case 35674:return ec;case 35675:return nc;case 35676:return rc;case 5124:case 35670:return Yl;case 35667:case 35671:return Zl;case 35668:case 35672:return Jl;case 35669:case 35673:return Ql;case 35678:case 36198:case 36298:case 36306:case 35682:return ic;case 35680:case 36300:case 36308:case 36293:return sc}}function ac(t,e,n){this.id=t,this.addr=n,this.cache=[],this.setValue=ql(e.type)}function lc(t,e,n){this.id=t,this.addr=n,this.cache=[],this.size=e.size,this.setValue=oc(e.type)}function cc(t){this.id=t,this.seq=[],this.map={}}lc.prototype.updateCache=function(t){const e=this.cache;t instanceof Float32Array&&e.length!==t.length&&(this.cache=new Float32Array(t.length)),Ll(e,t)},cc.prototype.setValue=function(t,e,n){const r=this.seq;for(let i=0,s=r.length;i!==s;++i){const s=r[i];s.setValue(t,e[s.id],n)}};const hc=/(\w+)(\])?(\[|\.)?/g;function uc(t,e){t.seq.push(e),t.map[e.id]=e}function pc(t,e,n){const r=t.name,i=r.length;for(hc.lastIndex=0;;){const s=hc.exec(r),o=hc.lastIndex;let a=s[1];const l="]"===s[2],c=s[3];if(l&&(a|=0),void 0===c||"["===c&&o+2===i){uc(n,void 0===c?new ac(a,t,e):new lc(a,t,e));break}{let t=n.map[a];void 0===t&&uc(n,t=new cc(a)),n=t}}}function dc(t,e){this.seq=[],this.map={};const n=t.getProgramParameter(e,35718);for(let r=0;r<n;++r){const n=t.getActiveUniform(e,r);pc(n,t.getUniformLocation(e,n.name),this)}}function mc(t,e,n){const r=t.createShader(e);return t.shaderSource(r,n),t.compileShader(r),r}dc.prototype.setValue=function(t,e,n,r){const i=this.map[e];void 0!==i&&i.setValue(t,n,r)},dc.prototype.setOptional=function(t,e,n){const r=e[n];void 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DITHERING":"",Ka.encodings_pars_fragment,n.map?yc("mapTexelToLinear",n.mapEncoding):"",n.matcap?yc("matcapTexelToLinear",n.matcapEncoding):"",n.envMap?yc("envMapTexelToLinear",n.envMapEncoding):"",n.emissiveMap?yc("emissiveMapTexelToLinear",n.emissiveMapEncoding):"",n.lightMap?yc("lightMapTexelToLinear",n.lightMapEncoding):"",_c("linearToOutputTexel",n.outputEncoding),n.depthPacking?"#define DEPTH_PACKING "+n.depthPacking:"","\n"].filter(Tc).join("\n")),o=Ac(o=Ec(o=Rc(o),n),n),a=Ac(a=Ec(a=Rc(a),n),n),o=Ic(o),a=Ic(a),n.isWebGL2&&!0!==n.isRawShaderMaterial&&(v="#version 300 es\n",g=["#define attribute in","#define varying out","#define texture2D texture"].join("\n")+"\n"+g,x=["#define varying in",n.glslVersion===Dn?"":"out highp vec4 pc_fragColor;",n.glslVersion===Dn?"":"#define gl_FragColor pc_fragColor","#define gl_FragDepthEXT gl_FragDepth","#define texture2D texture","#define textureCube texture","#define texture2DProj textureProj","#define texture2DLodEXT textureLod","#define texture2DProjLodEXT textureProjLod","#define textureCubeLodEXT textureLod","#define texture2DGradEXT textureGrad","#define texture2DProjGradEXT textureProjGrad","#define textureCubeGradEXT textureGrad"].join("\n")+"\n"+x);const y=v+x+a,_=mc(i,35633,v+g+o),b=mc(i,35632,y);if(i.attachShader(f,_),i.attachShader(f,b),void 0!==n.index0AttributeName?i.bindAttribLocation(f,0,n.index0AttributeName):!0===n.morphTargets&&i.bindAttribLocation(f,0,"position"),i.linkProgram(f),t.debug.checkShaderErrors){const t=i.getProgramInfoLog(f).trim(),e=i.getShaderInfoLog(_).trim(),n=i.getShaderInfoLog(b).trim();let r=!0,s=!0;if(!1===i.getProgramParameter(f,35714)){r=!1;const e=vc(i,_,"vertex"),n=vc(i,b,"fragment");console.error("THREE.WebGLProgram: shader error: ",i.getError(),"35715",i.getProgramParameter(f,35715),"gl.getProgramInfoLog",t,e,n)}else""!==t?console.warn("THREE.WebGLProgram: 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f={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",MeshPhongMaterial:"phong",MeshToonMaterial:"toon",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",MeshMatcapMaterial:"matcap",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow",SpriteMaterial:"sprite"},g=["precision","isWebGL2","supportsVertexTextures","outputEncoding","instancing","instancingColor","map","mapEncoding","matcap","matcapEncoding","envMap","envMapMode","envMapEncoding","envMapCubeUV","lightMap","lightMapEncoding","aoMap","emissiveMap","emissiveMapEncoding","bumpMap","normalMap","objectSpaceNormalMap","tangentSpaceNormalMap","clearcoatMap","clearcoatRoughnessMap","clearcoatNormalMap","displacementMap","specularMap","roughnessMap","metalnessMap","gradientMap","alphaMap","combine","vertexColors","vertexTangents","vertexUvs","uvsVertexOnly","fog","useFog","fogExp2","flatShading","sizeAttenuation","logarithmicDepthBuffer","skinning","maxBones","useVertexTexture","morphTargets","morphNormals","maxMorphTargets","maxMorphNormals","premultipliedAlpha","numDirLights","numPointLights","numSpotLights","numHemiLights","numRectAreaLights","numDirLightShadows","numPointLightShadows","numSpotLightShadows","shadowMapEnabled","shadowMapType","toneMapping","physicallyCorrectLights","alphaTest","doubleSided","flipSided","numClippingPlanes","numClipIntersection","depthPacking","dithering","sheen","transmissionMap"];function x(t){let e;return t&&t.isTexture?e=t.encoding:t&&t.isWebGLRenderTarget?(console.warn("THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead."),e=t.texture.encoding):e=Xe,e}return{getParameters:function(i,o,g,v,y){const _=v.fog,b=i.isMeshStandardMaterial?v.environment:null,w=e.get(i.envMap||b),M=f[i.type],S=y.isSkinnedMesh?function(t){const e=t.skeleton.bones;if(c)return 1024;{const t=h,n=Math.floor((t-20)/4),r=Math.min(n,e.length);return r<e.length?(console.warn("THREE.WebGLRenderer: Skeleton has "+e.length+" bones. This GPU supports "+r+"."),0):r}}(y):0;let T,E;if(null!==i.precision&&(m=r.getMaxPrecision(i.precision))!==i.precision&&console.warn("THREE.WebGLProgram.getParameters:",i.precision,"not supported, using",m,"instead."),M){const t=tl[M];T=t.vertexShader,E=t.fragmentShader}else T=i.vertexShader,E=i.fragmentShader;const A=t.getRenderTarget();return{isWebGL2:a,shaderID:M,shaderName:i.type,vertexShader:T,fragmentShader:E,defines:i.defines,isRawShaderMaterial:!0===i.isRawShaderMaterial,glslVersion:i.glslVersion,precision:m,instancing:!0===y.isInstancedMesh,instancingColor:!0===y.isInstancedMesh&&null!==y.instanceColor,supportsVertexTextures:u,outputEncoding:null!==A?x(A.texture):t.outputEncoding,map:!!i.map,mapEncoding:x(i.map),matcap:!!i.matcap,matcapEncoding:x(i.matcap),envMap:!!w,envMapMode:w&&w.mapping,envMapEncoding:x(w),envMapCubeUV:!!w&&(w.mapping===ot||w.mapping===at),lightMap:!!i.lightMap,lightMapEncoding:x(i.lightMap),aoMap:!!i.aoMap,emissiveMap:!!i.emissiveMap,emissiveMapEncoding:x(i.emissiveMap),bumpMap:!!i.bumpMap,normalMap:!!i.normalMap,objectSpaceNormalMap:i.normalMapType===sn,tangentSpaceNormalMap:i.normalMapType===rn,clearcoatMap:!!i.clearcoatMap,clearcoatRoughnessMap:!!i.clearcoatRoughnessMap,clearcoatNormalMap:!!i.clearcoatNormalMap,displacementMap:!!i.displacementMap,roughnessMap:!!i.roughnessMap,metalnessMap:!!i.metalnessMap,specularMap:!!i.specularMap,alphaMap:!!i.alphaMap,gradientMap:!!i.gradientMap,sheen:!!i.sheen,transmissionMap:!!i.transmissionMap,combine:i.combine,vertexTangents:i.normalMap&&i.vertexTangents,vertexColors:i.vertexColors,vertexUvs:!!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatMap||i.clearcoatRoughnessMap||i.clearcoatNormalMap||i.displacementMap||i.transmissionMap),uvsVertexOnly:!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatNormalMap||i.transmissionMap||!i.displacementMap),fog:!!_,useFog:i.fog,fogExp2:_&&_.isFogExp2,flatShading:!!i.flatShading,sizeAttenuation:i.sizeAttenuation,logarithmicDepthBuffer:l,skinning:i.skinning&&S>0,maxBones:S,useVertexTexture:c,morphTargets:i.morphTargets,morphNormals:i.morphNormals,maxMorphTargets:t.maxMorphTargets,maxMorphNormals:t.maxMorphNormals,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numClippingPlanes:s.numPlanes,numClipIntersection:s.numIntersection,dithering:i.dithering,shadowMapEnabled:t.shadowMap.enabled&&g.length>0,shadowMapType:t.shadowMap.type,toneMapping:i.toneMapped?t.toneMapping:Z,physicallyCorrectLights:t.physicallyCorrectLights,premultipliedAlpha:i.premultipliedAlpha,alphaTest:i.alphaTest,doubleSided:i.side===d,flipSided:i.side===p,depthPacking:void 0!==i.depthPacking&&i.depthPacking,index0AttributeName:i.index0AttributeName,extensionDerivatives:i.extensions&&i.extensions.derivatives,extensionFragDepth:i.extensions&&i.extensions.fragDepth,extensionDrawBuffers:i.extensions&&i.extensions.drawBuffers,extensionShaderTextureLOD:i.extensions&&i.extensions.shaderTextureLOD,rendererExtensionFragDepth:a||n.has("EXT_frag_depth"),rendererExtensionDrawBuffers:a||n.has("WEBGL_draw_buffers"),rendererExtensionShaderTextureLod:a||n.has("EXT_shader_texture_lod"),customProgramCacheKey:i.customProgramCacheKey()}},getProgramCacheKey:function(e){const n=[];if(e.shaderID?n.push(e.shaderID):(n.push(e.fragmentShader),n.push(e.vertexShader)),void 0!==e.defines)for(const t in e.defines)n.push(t),n.push(e.defines[t]);if(!1===e.isRawShaderMaterial){for(let t=0;t<g.length;t++)n.push(e[g[t]]);n.push(t.outputEncoding),n.push(t.gammaFactor)}return n.push(e.customProgramCacheKey),n.join()},getUniforms:function(t){const e=f[t.type];let n;if(e){const 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t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:t.id-e.id}function qc(t){const e=[];let n=0;const r=[],i=[],s={id:-1};function o(r,i,o,a,l,c){let h=e[n];const u=t.get(o);return void 0===h?(h={id:r.id,object:r,geometry:i,material:o,program:u.program||s,groupOrder:a,renderOrder:r.renderOrder,z:l,group:c},e[n]=h):(h.id=r.id,h.object=r,h.geometry=i,h.material=o,h.program=u.program||s,h.groupOrder=a,h.renderOrder=r.renderOrder,h.z=l,h.group=c),n++,h}return{opaque:r,transparent:i,init:function(){n=0,r.length=0,i.length=0},push:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).push(c)},unshift:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).unshift(c)},finish:function(){for(let t=n,r=e.length;t<r;t++){const n=e[t];if(null===n.id)break;n.id=null,n.object=null,n.geometry=null,n.material=null,n.program=null,n.group=null}},sort:function(t,e){r.length>1&&r.sort(t||Wc),i.length>1&&i.sort(e||jc)}}}function Xc(t){let e=new WeakMap;return{get:function(n,r){let i;return!1===e.has(n)?(i=new qc(t),e.set(n,[i])):r>=e.get(n).length?(i=new qc(t),e.get(n).push(i)):i=e.get(n)[r],i},dispose:function(){e=new WeakMap}}}function Yc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":n={direction:new Yn,color:new xi};break;case"SpotLight":n={position:new Yn,direction:new Yn,color:new xi,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":n={position:new Yn,color:new xi,distance:0,decay:0};break;case"HemisphereLight":n={direction:new Yn,skyColor:new xi,groundColor:new xi};break;case"RectAreaLight":n={color:new xi,position:new Yn,halfWidth:new Yn,halfHeight:new Yn}}return t[e.id]=n,n}}}function Zc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":case"SpotLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On};break;case"PointLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On,shadowCameraNear:1,shadowCameraFar:1e3}}return t[e.id]=n,n}}}let Jc=0;function Qc(t,e){return(e.castShadow?1:0)-(t.castShadow?1:0)}function Kc(t,e){const n=new Yc,r=Zc(),i={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadow:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]};for(let l=0;l<9;l++)i.probe.push(new Yn);const s=new Yn,o=new wr,a=new wr;return{setup:function(s){let o=0,a=0,l=0;for(let t=0;t<9;t++)i.probe[t].set(0,0,0);let c=0,h=0,u=0,p=0,d=0,m=0,f=0,g=0;s.sort(Qc);for(let t=0,e=s.length;t<e;t++){const e=s[t],x=e.color,v=e.intensity,y=e.distance,_=e.shadow&&e.shadow.map?e.shadow.map.texture:null;if(e.isAmbientLight)o+=x.r*v,a+=x.g*v,l+=x.b*v;else if(e.isLightProbe)for(let t=0;t<9;t++)i.probe[t].addScaledVector(e.sh.coefficients[t],v);else if(e.isDirectionalLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.directionalShadow[c]=n,i.directionalShadowMap[c]=_,i.directionalShadowMatrix[c]=e.shadow.matrix,m++}i.directional[c]=t,c++}else if(e.isSpotLight){const t=n.get(e);if(t.position.setFromMatrixPosition(e.matrixWorld),t.color.copy(x).multiplyScalar(v),t.distance=y,t.coneCos=Math.cos(e.angle),t.penumbraCos=Math.cos(e.angle*(1-e.penumbra)),t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.spotShadow[u]=n,i.spotShadowMap[u]=_,i.spotShadowMatrix[u]=e.shadow.matrix,g++}i.spot[u]=t,u++}else if(e.isRectAreaLight){const t=n.get(e);t.color.copy(x).multiplyScalar(v),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),i.rectArea[p]=t,p++}else if(e.isPointLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),t.distance=e.distance,t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,n.shadowCameraNear=t.camera.near,n.shadowCameraFar=t.camera.far,i.pointShadow[h]=n,i.pointShadowMap[h]=_,i.pointShadowMatrix[h]=e.shadow.matrix,f++}i.point[h]=t,h++}else if(e.isHemisphereLight){const t=n.get(e);t.skyColor.copy(e.color).multiplyScalar(v),t.groundColor.copy(e.groundColor).multiplyScalar(v),i.hemi[d]=t,d++}}p>0&&(e.isWebGL2?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_float_linear")?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_half_float_linear")?(i.rectAreaLTC1=$a.LTC_HALF_1,i.rectAreaLTC2=$a.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.")),i.ambient[0]=o,i.ambient[1]=a,i.ambient[2]=l;const x=i.hash;x.directionalLength===c&&x.pointLength===h&&x.spotLength===u&&x.rectAreaLength===p&&x.hemiLength===d&&x.numDirectionalShadows===m&&x.numPointShadows===f&&x.numSpotShadows===g||(i.directional.length=c,i.spot.length=u,i.rectArea.length=p,i.point.length=h,i.hemi.length=d,i.directionalShadow.length=m,i.directionalShadowMap.length=m,i.pointShadow.length=f,i.pointShadowMap.length=f,i.spotShadow.length=g,i.spotShadowMap.length=g,i.directionalShadowMatrix.length=m,i.pointShadowMatrix.length=f,i.spotShadowMatrix.length=g,x.directionalLength=c,x.pointLength=h,x.spotLength=u,x.rectAreaLength=p,x.hemiLength=d,x.numDirectionalShadows=m,x.numPointShadows=f,x.numSpotShadows=g,i.version=Jc++)},setupView:function(t,e){let n=0,r=0,l=0,c=0,h=0;const u=e.matrixWorldInverse;for(let p=0,d=t.length;p<d;p++){const e=t[p];if(e.isDirectionalLight){const t=i.directional[n];t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),n++}else if(e.isSpotLight){const t=i.spot[l];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),l++}else if(e.isRectAreaLight){const t=i.rectArea[c];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),a.identity(),o.copy(e.matrixWorld),o.premultiply(u),a.extractRotation(o),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),t.halfWidth.applyMatrix4(a),t.halfHeight.applyMatrix4(a),c++}else if(e.isPointLight){const t=i.point[r];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),r++}else if(e.isHemisphereLight){const t=i.hemi[h];t.direction.setFromMatrixPosition(e.matrixWorld),t.direction.transformDirection(u),t.direction.normalize(),h++}}},state:i}}function $c(t,e){const n=new Kc(t,e),r=[],i=[];return{init:function(){r.length=0,i.length=0},state:{lightsArray:r,shadowsArray:i,lights:n},setupLights:function(){n.setup(r)},setupLightsView:function(t){n.setupView(r,t)},pushLight:function(t){r.push(t)},pushShadow:function(t){i.push(t)}}}function th(t,e){let n=new WeakMap;return{get:function(r,i=0){let s;return!1===n.has(r)?(s=new $c(t,e),n.set(r,[s])):i>=n.get(r).length?(s=new $c(t,e),n.get(r).push(s)):s=n.get(r)[i],s},dispose:function(){n=new WeakMap}}}class eh extends hi{constructor(t){super(),this.type="MeshDepthMaterial",this.depthPacking=en,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.depthPacking=t.depthPacking,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this}}exports.MeshDepthMaterial=eh,eh.prototype.isMeshDepthMaterial=!0;class nh extends hi{constructor(t){super(),this.type="MeshDistanceMaterial",this.referencePosition=new Yn,this.nearDistance=1,this.farDistance=1e3,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.referencePosition.copy(t.referencePosition),this.nearDistance=t.nearDistance,this.farDistance=t.farDistance,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this}}exports.MeshDistanceMaterial=nh,nh.prototype.isMeshDistanceMaterial=!0;var rh="uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}",ih="void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";function sh(t,e,n){let r=new Es;const i=new On,s=new On,o=new Wn,a=[],c=[],m={},f={0:p,1:u,2:d},x=new fs({defines:{SAMPLE_RATE:.25,HALF_SAMPLE_RATE:1/8},uniforms:{shadow_pass:{value:null},resolution:{value:new On},radius:{value:4}},vertexShader:ih,fragmentShader:rh}),v=x.clone();v.defines.HORIZONTAL_PASS=1;const y=new ki;y.setAttribute("position",new bi(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const _=new os(y,x),b=this;function w(n,r){const i=e.update(_);x.uniforms.shadow_pass.value=n.map.texture,x.uniforms.resolution.value=n.mapSize,x.uniforms.radius.value=n.radius,t.setRenderTarget(n.mapPass),t.clear(),t.renderBufferDirect(r,null,i,x,_,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,t.setRenderTarget(n.map),t.clear(),t.renderBufferDirect(r,null,i,v,_,null)}function M(t,e,n){const r=t<<0|e<<1|n<<2;let i=a[r];return void 0===i&&(i=new eh({depthPacking:nn,morphTargets:t,skinning:e}),a[r]=i),i}function S(t,e,n){const r=t<<0|e<<1|n<<2;let i=c[r];return void 0===i&&(i=new nh({morphTargets:t,skinning:e}),c[r]=i),i}function T(e,n,r,i,s,o,a){let l=null,c=M,u=e.customDepthMaterial;if(!0===i.isPointLight&&(c=S,u=e.customDistanceMaterial),void 0===u){let t=!1;!0===r.morphTargets&&(t=n.morphAttributes&&n.morphAttributes.position&&n.morphAttributes.position.length>0);let i=!1;!0===e.isSkinnedMesh&&(!0===r.skinning?i=!0:console.warn("THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:",e)),l=c(t,i,!0===e.isInstancedMesh)}else l=u;if(t.localClippingEnabled&&!0===r.clipShadows&&0!==r.clippingPlanes.length){const t=l.uuid,e=r.uuid;let n=m[t];void 0===n&&(n={},m[t]=n);let i=n[e];void 0===i&&(i=l.clone(),n[e]=i),l=i}return l.visible=r.visible,l.wireframe=r.wireframe,l.side=a===h?null!==r.shadowSide?r.shadowSide:r.side:null!==r.shadowSide?r.shadowSide:f[r.side],l.clipShadows=r.clipShadows,l.clippingPlanes=r.clippingPlanes,l.clipIntersection=r.clipIntersection,l.wireframeLinewidth=r.wireframeLinewidth,l.linewidth=r.linewidth,!0===i.isPointLight&&!0===l.isMeshDistanceMaterial&&(l.referencePosition.setFromMatrixPosition(i.matrixWorld),l.nearDistance=s,l.farDistance=o),l}function E(n,i,s,o,a){if(!1===n.visible)return;if(n.layers.test(i.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&a===h)&&(!n.frustumCulled||r.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(s.matrixWorldInverse,n.matrixWorld);const r=e.update(n),i=n.material;if(Array.isArray(i)){const e=r.groups;for(let l=0,c=e.length;l<c;l++){const c=e[l],h=i[c.materialIndex];if(h&&h.visible){const e=T(n,r,h,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,c)}}}else if(i.visible){const e=T(n,r,i,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,null)}}const l=n.children;for(let t=0,e=l.length;t<e;t++)E(l[t],i,s,o,a)}this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=l,this.render=function(e,a,l){if(!1===b.enabled)return;if(!1===b.autoUpdate&&!1===b.needsUpdate)return;if(0===e.length)return;const c=t.getRenderTarget(),u=t.getActiveCubeFace(),p=t.getActiveMipmapLevel(),d=t.state;d.setBlending(g),d.buffers.color.setClear(1,1,1,1),d.buffers.depth.setTest(!0),d.setScissorTest(!1);for(let m=0,f=e.length;m<f;m++){const c=e[m],u=c.shadow;if(void 0===u){console.warn("THREE.WebGLShadowMap:",c,"has no shadow.");continue}if(!1===u.autoUpdate&&!1===u.needsUpdate)continue;i.copy(u.mapSize);const p=u.getFrameExtents();if(i.multiply(p),s.copy(u.mapSize),(i.x>n||i.y>n)&&(i.x>n&&(s.x=Math.floor(n/p.x),i.x=s.x*p.x,u.mapSize.x=s.x),i.y>n&&(s.y=Math.floor(n/p.y),i.y=s.y*p.y,u.mapSize.y=s.y)),null===u.map&&!u.isPointLightShadow&&this.type===h){const t={minFilter:gt,magFilter:gt,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.mapPass=new jn(i.x,i.y,t),u.camera.updateProjectionMatrix()}if(null===u.map){const t={minFilter:ut,magFilter:ut,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.camera.updateProjectionMatrix()}t.setRenderTarget(u.map),t.clear();const f=u.getViewportCount();for(let t=0;t<f;t++){const e=u.getViewport(t);o.set(s.x*e.x,s.y*e.y,s.x*e.z,s.y*e.w),d.viewport(o),u.updateMatrices(c,t),r=u.getFrustum(),E(a,l,u.camera,c,this.type)}u.isPointLightShadow||this.type!==h||w(u,l),u.needsUpdate=!1}b.needsUpdate=!1,t.setRenderTarget(c,u,p)}}function oh(t,e,n){const o=n.isWebGL2;const a=new function(){let e=!1;const n=new Wn;let r=null;const i=new Wn(0,0,0,0);return{setMask:function(n){r===n||e||(t.colorMask(n,n,n,n),r=n)},setLocked:function(t){e=t},setClear:function(e,r,s,o,a){!0===a&&(e*=o,r*=o,s*=o),n.set(e,r,s,o),!1===i.equals(n)&&(t.clearColor(e,r,s,o),i.copy(n))},reset:function(){e=!1,r=null,i.set(-1,0,0,0)}}},l=new function(){let e=!1,n=null,r=null,i=null;return{setTest:function(t){t?mt(2929):ft(2929)},setMask:function(r){n===r||e||(t.depthMask(r),n=r)},setFunc:function(e){if(r!==e){if(e)switch(e){case z:t.depthFunc(512);break;case G:t.depthFunc(519);break;case H:t.depthFunc(513);break;case U:t.depthFunc(515);break;case k:t.depthFunc(514);break;case V:t.depthFunc(518);break;case W:t.depthFunc(516);break;case j:t.depthFunc(517);break;default:t.depthFunc(515)}else t.depthFunc(515);r=e}},setLocked:function(t){e=t},setClear:function(e){i!==e&&(t.clearDepth(e),i=e)},reset:function(){e=!1,n=null,r=null,i=null}}},c=new function(){let e=!1,n=null,r=null,i=null,s=null,o=null,a=null,l=null,c=null;return{setTest:function(t){e||(t?mt(2960):ft(2960))},setMask:function(r){n===r||e||(t.stencilMask(r),n=r)},setFunc:function(e,n,o){r===e&&i===n&&s===o||(t.stencilFunc(e,n,o),r=e,i=n,s=o)},setOp:function(e,n,r){o===e&&a===n&&l===r||(t.stencilOp(e,n,r),o=e,a=n,l=r)},setLocked:function(t){e=t},setClear:function(e){c!==e&&(t.clearStencil(e),c=e)},reset:function(){e=!1,n=null,r=null,i=null,s=null,o=null,a=null,l=null,c=null}}};let h={},u=null,m=!1,f=null,q=null,X=null,Y=null,Z=null,J=null,Q=null,K=!1,$=null,tt=null,et=null,nt=null,rt=null;const it=t.getParameter(35661);let st=!1,ot=0;const at=t.getParameter(7938);-1!==at.indexOf("WebGL")?(ot=parseFloat(/^WebGL (\d)/.exec(at)[1]),st=ot>=1):-1!==at.indexOf("OpenGL ES")&&(ot=parseFloat(/^OpenGL ES (\d)/.exec(at)[1]),st=ot>=2);let lt=null,ct={};const ht=new Wn,ut=new Wn;function pt(e,n,r){const i=new Uint8Array(4),s=t.createTexture();t.bindTexture(e,s),t.texParameteri(e,10241,9728),t.texParameteri(e,10240,9728);for(let o=0;o<r;o++)t.texImage2D(n+o,0,6408,1,1,0,6408,5121,i);return s}const dt={};function mt(e){!0!==h[e]&&(t.enable(e),h[e]=!0)}function ft(e){!1!==h[e]&&(t.disable(e),h[e]=!1)}dt[3553]=pt(3553,3553,1),dt[34067]=pt(34067,34069,6),a.setClear(0,0,0,1),l.setClear(1),c.setClear(0),mt(2929),l.setFunc(U),yt(!1),_t(i),mt(2884),vt(g);const gt={[w]:32774,[M]:32778,[S]:32779};if(o)gt[T]=32775,gt[E]=32776;else{const t=e.get("EXT_blend_minmax");null!==t&&(gt[T]=t.MIN_EXT,gt[E]=t.MAX_EXT)}const xt={[A]:0,[L]:1,[R]:768,[P]:770,[O]:776,[N]:774,[I]:772,[C]:769,[D]:771,[F]:775,[B]:773};function vt(e,n,r,i,s,o,a,l){if(e!==g){if(!1===m&&(mt(3042),m=!0),e===b)s=s||n,o=o||r,a=a||i,n===q&&s===Z||(t.blendEquationSeparate(gt[n],gt[s]),q=n,Z=s),r===X&&i===Y&&o===J&&a===Q||(t.blendFuncSeparate(xt[r],xt[i],xt[o],xt[a]),X=r,Y=i,J=o,Q=a),f=e,K=null;else if(e!==f||l!==K){if(q===w&&Z===w||(t.blendEquation(32774),q=w,Z=w),l)switch(e){case x:t.blendFuncSeparate(1,771,1,771);break;case v:t.blendFunc(1,1);break;case y:t.blendFuncSeparate(0,0,769,771);break;case _:t.blendFuncSeparate(0,768,0,770);break;default:console.error("THREE.WebGLState: Invalid blending: ",e)}else switch(e){case x:t.blendFuncSeparate(770,771,1,771);break;case v:t.blendFunc(770,1);break;case y:t.blendFunc(0,769);break;case _:t.blendFunc(0,768);break;default:console.error("THREE.WebGLState: Invalid blending: 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ah(t,e,n,r,i,s,o){const a=i.isWebGL2,l=i.maxTextures,c=i.maxCubemapSize,h=i.maxTextureSize,u=i.maxSamples,p=new WeakMap;let d,m=!1;try{m="undefined"!=typeof OffscreenCanvas&&null!==new OffscreenCanvas(1,1).getContext("2d")}catch(z){}function f(t,e){return m?new OffscreenCanvas(t,e):document.createElementNS("http://www.w3.org/1999/xhtml","canvas")}function g(t,e,n,r){let i=1;if((t.width>r||t.height>r)&&(i=r/Math.max(t.width,t.height)),i<1||!0===e){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const r=e?Fn.floorPowerOfTwo:Math.floor,s=r(i*t.width),o=r(i*t.height);void 0===d&&(d=f(s,o));const a=n?f(s,o):d;return a.width=s,a.height=o,a.getContext("2d").drawImage(t,0,0,s,o),console.warn("THREE.WebGLRenderer: Texture has been resized from ("+t.width+"x"+t.height+") to ("+s+"x"+o+")."),a}return"data"in t&&console.warn("THREE.WebGLRenderer: 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i=r.get(t);if(t.isVideoTexture&&function(t){const e=o.render.frame;p.get(t)!==e&&(p.set(t,e),t.update())}(t),t.version>0&&i.__version!==t.version){const n=t.image;if(void 0===n)console.warn("THREE.WebGLRenderer: Texture marked for update but image is undefined");else{if(!1!==n.complete)return void P(i,t,e);console.warn("THREE.WebGLRenderer: Texture marked for update but image is incomplete")}}n.activeTexture(33984+e),n.bindTexture(3553,i.__webglTexture)}function E(e,i){const o=r.get(e);e.version>0&&o.__version!==e.version?function(e,r,i){if(6!==r.image.length)return;C(e,r),n.activeTexture(33984+i),n.bindTexture(34067,e.__webglTexture),t.pixelStorei(37440,r.flipY),t.pixelStorei(37441,r.premultiplyAlpha),t.pixelStorei(3317,r.unpackAlignment),t.pixelStorei(37443,0);const o=r&&(r.isCompressedTexture||r.image[0].isCompressedTexture),l=r.image[0]&&r.image[0].isDataTexture,h=[];for(let t=0;t<6;t++)h[t]=o||l?l?r.image[t].image:r.image[t]:g(r.image[t],!1,!0,c);const 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uh,l[t]=e),e.getHandSpace()},this.setFramebufferScaleFactor=function(t){i=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(t){o=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return s},this.getSession=function(){return r},this.setSession=async function(t){if(null!==(r=t)){r.addEventListener("select",g),r.addEventListener("selectstart",g),r.addEventListener("selectend",g),r.addEventListener("squeeze",g),r.addEventListener("squeezestart",g),r.addEventListener("squeezeend",g),r.addEventListener("end",x),r.addEventListener("inputsourceschange",v);const t=e.getContextAttributes();!0!==t.xrCompatible&&await e.makeXRCompatible();const a={antialias:t.antialias,alpha:t.alpha,depth:t.depth,stencil:t.stencil,framebufferScaleFactor:i},l=new XRWebGLLayer(r,e,a);r.updateRenderState({baseLayer:l}),s=await 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r=e[t],s=n.getViewport(r),o=p[t];o.matrix.fromArray(r.transform.matrix),o.projectionMatrix.fromArray(r.projectionMatrix),o.viewport.set(s.x,s.y,s.width,s.height),0===t&&d.matrix.copy(o.matrix),!0===i&&d.cameras.push(o)}}const i=r.inputSources;for(let t=0;t<l.length;t++){const e=l[t],r=i[t];e.update(r,n,s)}w&&w(e,n)}),this.setAnimationLoop=function(t){w=t},this.dispose=function(){}}function dh(t){function e(e,n){e.opacity.value=n.opacity,n.color&&e.diffuse.value.copy(n.color),n.emissive&&e.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),n.map&&(e.map.value=n.map),n.alphaMap&&(e.alphaMap.value=n.alphaMap),n.specularMap&&(e.specularMap.value=n.specularMap);const r=t.get(n).envMap;if(r){e.envMap.value=r,e.flipEnvMap.value=r.isCubeTexture&&r._needsFlipEnvMap?-1:1,e.reflectivity.value=n.reflectivity,e.refractionRatio.value=n.refractionRatio;const i=t.get(r).__maxMipLevel;void 0!==i&&(e.maxMipLevel.value=i)}let i,s;n.lightMap&&(e.lightMap.value=n.lightMap,e.lightMapIntensity.value=n.lightMapIntensity),n.aoMap&&(e.aoMap.value=n.aoMap,e.aoMapIntensity.value=n.aoMapIntensity),n.map?i=n.map:n.specularMap?i=n.specularMap:n.displacementMap?i=n.displacementMap:n.normalMap?i=n.normalMap:n.bumpMap?i=n.bumpMap:n.roughnessMap?i=n.roughnessMap:n.metalnessMap?i=n.metalnessMap:n.alphaMap?i=n.alphaMap:n.emissiveMap?i=n.emissiveMap:n.clearcoatMap?i=n.clearcoatMap:n.clearcoatNormalMap?i=n.clearcoatNormalMap:n.clearcoatRoughnessMap&&(i=n.clearcoatRoughnessMap),void 0!==i&&(i.isWebGLRenderTarget&&(i=i.texture),!0===i.matrixAutoUpdate&&i.updateMatrix(),e.uvTransform.value.copy(i.matrix)),n.aoMap?s=n.aoMap:n.lightMap&&(s=n.lightMap),void 0!==s&&(s.isWebGLRenderTarget&&(s=s.texture),!0===s.matrixAutoUpdate&&s.updateMatrix(),e.uv2Transform.value.copy(s.matrix))}function n(e,n){e.roughness.value=n.roughness,e.metalness.value=n.metalness,n.roughnessMap&&(e.roughnessMap.value=n.roughnessMap),n.metalnessMap&&(e.metalnessMap.value=n.metalnessMap),n.emissiveMap&&(e.emissiveMap.value=n.emissiveMap),n.bumpMap&&(e.bumpMap.value=n.bumpMap,e.bumpScale.value=n.bumpScale,n.side===p&&(e.bumpScale.value*=-1)),n.normalMap&&(e.normalMap.value=n.normalMap,e.normalScale.value.copy(n.normalScale),n.side===p&&e.normalScale.value.negate()),n.displacementMap&&(e.displacementMap.value=n.displacementMap,e.displacementScale.value=n.displacementScale,e.displacementBias.value=n.displacementBias),t.get(n).envMap&&(e.envMapIntensity.value=n.envMapIntensity)}return{refreshFogUniforms:function(t,e){t.fogColor.value.copy(e.color),e.isFog?(t.fogNear.value=e.near,t.fogFar.value=e.far):e.isFogExp2&&(t.fogDensity.value=e.density)},refreshMaterialUniforms:function(t,r,i,s){r.isMeshBasicMaterial?e(t,r):r.isMeshLambertMaterial?(e(t,r),function(t,e){e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap)}(t,r)):r.isMeshToonMaterial?(e(t,r),function(t,e){e.gradientMap&&(t.gradientMap.value=e.gradientMap),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshPhongMaterial?(e(t,r),function(t,e){t.specular.value.copy(e.specular),t.shininess.value=Math.max(e.shininess,1e-4),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshStandardMaterial?(e(t,r),r.isMeshPhysicalMaterial?function(t,e){n(t,e),t.reflectivity.value=e.reflectivity,t.clearcoat.value=e.clearcoat,t.clearcoatRoughness.value=e.clearcoatRoughness,e.sheen&&t.sheen.value.copy(e.sheen),e.clearcoatMap&&(t.clearcoatMap.value=e.clearcoatMap),e.clearcoatRoughnessMap&&(t.clearcoatRoughnessMap.value=e.clearcoatRoughnessMap),e.clearcoatNormalMap&&(t.clearcoatNormalScale.value.copy(e.clearcoatNormalScale),t.clearcoatNormalMap.value=e.clearcoatNormalMap,e.side===p&&t.clearcoatNormalScale.value.negate()),t.transmission.value=e.transmission,e.transmissionMap&&(t.transmissionMap.value=e.transmissionMap)}(t,r):n(t,r)):r.isMeshMatcapMaterial?(e(t,r),function(t,e){e.matcap&&(t.matcap.value=e.matcap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshDepthMaterial?(e(t,r),function(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshDistanceMaterial?(e(t,r),function(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias),t.referencePosition.value.copy(e.referencePosition),t.nearDistance.value=e.nearDistance,t.farDistance.value=e.farDistance}(t,r)):r.isMeshNormalMaterial?(e(t,r),function(t,e){e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isLineBasicMaterial?(function(t,e){t.diffuse.value.copy(e.color),t.opacity.value=e.opacity}(t,r),r.isLineDashedMaterial&&function(t,e){t.dashSize.value=e.dashSize,t.totalSize.value=e.dashSize+e.gapSize,t.scale.value=e.scale}(t,r)):r.isPointsMaterial?function(t,e,n,r){let i;t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.size.value=e.size*n,t.scale.value=.5*r,e.map&&(t.map.value=e.map),e.alphaMap&&(t.alphaMap.value=e.alphaMap),e.map?i=e.map:e.alphaMap&&(i=e.alphaMap),void 0!==i&&(!0===i.matrixAutoUpdate&&i.updateMatrix(),t.uvTransform.value.copy(i.matrix))}(t,r,i,s):r.isSpriteMaterial?function(t,e){let n;t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.rotation.value=e.rotation,e.map&&(t.map.value=e.map),e.alphaMap&&(t.alphaMap.value=e.alphaMap),e.map?n=e.map:e.alphaMap&&(n=e.alphaMap),void 0!==n&&(!0===n.matrixAutoUpdate&&n.updateMatrix(),t.uvTransform.value.copy(n.matrix))}(t,r):r.isShadowMaterial?(t.color.value.copy(r.color),t.opacity.value=r.opacity):r.isShaderMaterial&&(r.uniformsNeedUpdate=!1)}}}function mh(){const t=document.createElementNS("http://www.w3.org/1999/xhtml","canvas");return t.style.display="block",t}function fh(t){const e=void 0!==(t=t||{}).canvas?t.canvas:mh(),n=void 0!==t.context?t.context:null,r=void 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Mt(t,e,n,r,i,s){if(t.onBeforeRender(f,e,n,r,i,s),t.modelViewMatrix.multiplyMatrices(n.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),t.isImmediateRenderObject){const r=Tt(n,e,i,t);W.setMaterial(i),ct.reset(),function(t,e){t.render(function(t){f.renderBufferImmediate(t,e)})}(t,r)}else f.renderBufferDirect(n,e,r,i,t,s);t.onAfterRender(f,e,n,r,i,s)}function St(t,e,n){!0!==e.isScene&&(e=H);const r=q.get(t),i=p.state.lights,s=p.state.shadowsArray,o=i.state.version,a=$.getParameters(t,i.state,s,e,n),l=$.getProgramCacheKey(a);let c=r.program,h=!0;if(r.environment=t.isMeshStandardMaterial?e.environment:null,r.fog=e.fog,r.envMap=Y.get(t.envMap||r.environment),void 0===c)t.addEventListener("dispose",xt);else if(c.cacheKey!==l)vt(t);else if(r.lightsStateVersion!==o)h=!1;else{if(void 0!==a.shaderID)return;h=!1}h&&(a.uniforms=$.getUniforms(t),t.onBeforeCompile(a,f),c=$.acquireProgram(a,l),r.program=c,r.uniforms=a.uniforms,r.outputEncoding=a.outputEncoding);const u=r.uniforms;(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(r.numClippingPlanes=rt.numPlanes,r.numIntersection=rt.numIntersection,u.clippingPlanes=rt.uniform),r.needsLights=function(t){return t.isMeshLambertMaterial||t.isMeshToonMaterial||t.isMeshPhongMaterial||t.isMeshStandardMaterial||t.isShadowMaterial||t.isShaderMaterial&&!0===t.lights}(t),r.lightsStateVersion=o,r.needsLights&&(u.ambientLightColor.value=i.state.ambient,u.lightProbe.value=i.state.probe,u.directionalLights.value=i.state.directional,u.directionalLightShadows.value=i.state.directionalShadow,u.spotLights.value=i.state.spot,u.spotLightShadows.value=i.state.spotShadow,u.rectAreaLights.value=i.state.rectArea,u.ltc_1.value=i.state.rectAreaLTC1,u.ltc_2.value=i.state.rectAreaLTC2,u.pointLights.value=i.state.point,u.pointLightShadows.value=i.state.pointShadow,u.hemisphereLights.value=i.state.hemi,u.directionalShadowMap.value=i.state.directionalShadowMap,u.directionalShadowMatrix.value=i.state.directionalShadowMatrix,u.spotShadowMap.value=i.state.spotShadowMap,u.spotShadowMatrix.value=i.state.spotShadowMatrix,u.pointShadowMap.value=i.state.pointShadowMap,u.pointShadowMatrix.value=i.state.pointShadowMatrix);const d=r.program.getUniforms(),m=dc.seqWithValue(d.seq,u);r.uniformsList=m}function Tt(t,e,n,r){!0!==e.isScene&&(e=H),X.resetTextureUnits();const i=e.fog,s=n.isMeshStandardMaterial?e.environment:null,o=null===_?f.outputEncoding:_.texture.encoding,a=Y.get(n.envMap||s),l=q.get(n),c=p.state.lights;if(!0===F&&(!0===O||t!==M)){const e=t===M&&n.id===w;rt.setState(n,t,e)}n.version===l.__version?n.fog&&l.fog!==i?St(n,e,r):l.environment!==s?St(n,e,r):l.needsLights&&l.lightsStateVersion!==c.state.version?St(n,e,r):void 0===l.numClippingPlanes||l.numClippingPlanes===rt.numPlanes&&l.numIntersection===rt.numIntersection?l.outputEncoding!==o?St(n,e,r):l.envMap!==a&&St(n,e,r):St(n,e,r):(St(n,e,r),l.__version=n.version);let h=!1,u=!1,d=!1;const m=l.program,g=m.getUniforms(),x=l.uniforms;if(W.useProgram(m.program)&&(h=!0,u=!0,d=!0),n.id!==w&&(w=n.id,u=!0),h||M!==t){if(g.setValue(ht,"projectionMatrix",t.projectionMatrix),V.logarithmicDepthBuffer&&g.setValue(ht,"logDepthBufFC",2/(Math.log(t.far+1)/Math.LN2)),M!==t&&(M=t,u=!0,d=!0),n.isShaderMaterial||n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshStandardMaterial||n.envMap){const e=g.map.cameraPosition;void 0!==e&&e.setValue(ht,G.setFromMatrixPosition(t.matrixWorld))}(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial)&&g.setValue(ht,"isOrthographic",!0===t.isOrthographicCamera),(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial||n.isShadowMaterial||n.skinning)&&g.setValue(ht,"viewMatrix",t.matrixWorldInverse)}if(n.skinning){g.setOptional(ht,r,"bindMatrix"),g.setOptional(ht,r,"bindMatrixInverse");const t=r.skeleton;if(t){const e=t.bones;if(V.floatVertexTextures){if(null===t.boneTexture){let n=Math.sqrt(4*e.length);n=Fn.ceilPowerOfTwo(n),n=Math.max(n,4);const r=new Float32Array(n*n*4);r.set(t.boneMatrices);const i=new Ms(r,n,n,Nt,At);t.boneMatrices=r,t.boneTexture=i,t.boneTextureSize=n}g.setValue(ht,"boneTexture",t.boneTexture,X),g.setValue(ht,"boneTextureSize",t.boneTextureSize)}else g.setOptional(ht,t,"boneMatrices")}}var v,y;return(u||l.receiveShadow!==r.receiveShadow)&&(l.receiveShadow=r.receiveShadow,g.setValue(ht,"receiveShadow",r.receiveShadow)),u&&(g.setValue(ht,"toneMappingExposure",f.toneMappingExposure),l.needsLights&&(y=d,(v=x).ambientLightColor.needsUpdate=y,v.lightProbe.needsUpdate=y,v.directionalLights.needsUpdate=y,v.directionalLightShadows.needsUpdate=y,v.pointLights.needsUpdate=y,v.pointLightShadows.needsUpdate=y,v.spotLights.needsUpdate=y,v.spotLightShadows.needsUpdate=y,v.rectAreaLights.needsUpdate=y,v.hemisphereLights.needsUpdate=y),i&&n.fog&&tt.refreshFogUniforms(x,i),tt.refreshMaterialUniforms(x,n,R,L),dc.upload(ht,l.uniformsList,x,X)),n.isShaderMaterial&&!0===n.uniformsNeedUpdate&&(dc.upload(ht,l.uniformsList,x,X),n.uniformsNeedUpdate=!1),n.isSpriteMaterial&&g.setValue(ht,"center",r.center),g.setValue(ht,"modelViewMatrix",r.modelViewMatrix),g.setValue(ht,"normalMatrix",r.normalMatrix),g.setValue(ht,"modelMatrix",r.matrixWorld),m}_t.setAnimationLoop(function(t){dt.isPresenting||yt&&yt(t)}),"undefined"!=typeof window&&_t.setContext(window),this.setAnimationLoop=function(t){yt=t,dt.setAnimationLoop(t),null===t?_t.stop():_t.start()},this.render=function(t,e){let n,r;if(void 0!==arguments[2]&&(console.warn("THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead."),n=arguments[2]),void 0!==arguments[3]&&(console.warn("THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead."),r=arguments[3]),void 0!==e&&!0!==e.isCamera)return void console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");if(!0===g)return;ct.resetDefaultState(),w=-1,M=null,!0===t.autoUpdate&&t.updateMatrixWorld(),null===e.parent&&e.updateMatrixWorld(),!0===dt.enabled&&!0===dt.isPresenting&&(e=dt.getCamera(e)),!0===t.isScene&&t.onBeforeRender(f,t,e,n||_),(p=nt.get(t,m.length)).init(),m.push(p),z.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),N.setFromProjectionMatrix(z),O=this.localClippingEnabled,F=rt.init(this.clippingPlanes,O,e),(u=et.get(t,d.length)).init(),d.push(u),function t(e,n,r,i){if(!1===e.visible)return;const s=e.layers.test(n.layers);if(s)if(e.isGroup)r=e.renderOrder;else if(e.isLOD)!0===e.autoUpdate&&e.update(n);else if(e.isLight)p.pushLight(e),e.castShadow&&p.pushShadow(e);else if(e.isSprite){if(!e.frustumCulled||N.intersectsSprite(e)){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;n.visible&&u.push(e,t,n,r,G.z,null)}}else if(e.isImmediateRenderObject)i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z),u.push(e,null,e.material,r,G.z,null);else if((e.isMesh||e.isLine||e.isPoints)&&(e.isSkinnedMesh&&e.skeleton.frame!==j.render.frame&&(e.skeleton.update(),e.skeleton.frame=j.render.frame),!e.frustumCulled||N.intersectsObject(e))){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;if(Array.isArray(n)){const i=t.groups;for(let s=0,o=i.length;s<o;s++){const o=i[s],a=n[o.materialIndex];a&&a.visible&&u.push(e,t,a,r,G.z,o)}}else n.visible&&u.push(e,t,n,r,G.z,null)}const o=e.children;for(let a=0,l=o.length;a<l;a++)t(o[a],n,r,i)}(t,e,0,f.sortObjects),u.finish(),!0===f.sortObjects&&u.sort(C,P),!0===F&&rt.beginShadows();const i=p.state.shadowsArray;mt.render(i,t,e),p.setupLights(),p.setupLightsView(e),!0===F&&rt.endShadows(),!0===this.info.autoReset&&this.info.reset(),void 0!==n&&this.setRenderTarget(n),it.render(u,t,e,r);const s=u.opaque,o=u.transparent;s.length>0&&wt(s,t,e),o.length>0&&wt(o,t,e),!0===t.isScene&&t.onAfterRender(f,t,e),null!==_&&(X.updateRenderTargetMipmap(_),X.updateMultisampleRenderTarget(_)),W.buffers.depth.setTest(!0),W.buffers.depth.setMask(!0),W.buffers.color.setMask(!0),W.setPolygonOffset(!1),m.pop(),p=m.length>0?m[m.length-1]:null,d.pop(),u=d.length>0?d[d.length-1]:null},this.setFramebuffer=function(t){x!==t&&null===_&&ht.bindFramebuffer(36160,t),x=t},this.getActiveCubeFace=function(){return v},this.getActiveMipmapLevel=function(){return y},this.getRenderTarget=function(){return _},this.setRenderTarget=function(t,e=0,n=0){_=t,v=e,y=n,t&&void 0===q.get(t).__webglFramebuffer&&X.setupRenderTarget(t);let r=x,i=!1,s=!1;if(t){const n=t.texture;(n.isDataTexture3D||n.isDataTexture2DArray)&&(s=!0);const o=q.get(t).__webglFramebuffer;t.isWebGLCubeRenderTarget?(r=o[e],i=!0):r=t.isWebGLMultisampleRenderTarget?q.get(t).__webglMultisampledFramebuffer:o,S.copy(t.viewport),T.copy(t.scissor),E=t.scissorTest}else S.copy(D).multiplyScalar(R).floor(),T.copy(I).multiplyScalar(R).floor(),E=B;if(b!==r&&(ht.bindFramebuffer(36160,r),b=r),W.viewport(S),W.scissor(T),W.setScissorTest(E),i){const r=q.get(t.texture);ht.framebufferTexture2D(36160,36064,34069+e,r.__webglTexture,n)}else if(s){const r=q.get(t.texture),i=e||0;ht.framebufferTextureLayer(36160,36064,r.__webglTexture,n||0,i)}},this.readRenderTargetPixels=function(t,e,n,r,i,s,o){if(!t||!t.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let a=q.get(t).__webglFramebuffer;if(t.isWebGLCubeRenderTarget&&void 0!==o&&(a=a[o]),a){let o=!1;a!==b&&(ht.bindFramebuffer(36160,a),o=!0);try{const a=t.texture,l=a.format,c=a.type;if(l!==Nt&&lt.convert(l)!==ht.getParameter(35739))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const h=c===Lt&&(k.has("EXT_color_buffer_half_float")||V.isWebGL2&&k.has("EXT_color_buffer_float"));if(!(c===bt||lt.convert(c)===ht.getParameter(35738)||c===At&&(V.isWebGL2||k.has("OES_texture_float")||k.has("WEBGL_color_buffer_float"))||h))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");36053===ht.checkFramebufferStatus(36160)?e>=0&&e<=t.width-r&&n>=0&&n<=t.height-i&&ht.readPixels(e,n,r,i,lt.convert(l),lt.convert(c),s):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.")}finally{o&&ht.bindFramebuffer(36160,b)}}},this.copyFramebufferToTexture=function(t,e,n=0){const r=Math.pow(2,-n),i=Math.floor(e.image.width*r),s=Math.floor(e.image.height*r),o=lt.convert(e.format);X.setTexture2D(e,0),ht.copyTexImage2D(3553,n,o,t.x,t.y,i,s,0),W.unbindTexture()},this.copyTextureToTexture=function(t,e,n,r=0){const i=e.image.width,s=e.image.height,o=lt.convert(n.format),a=lt.convert(n.type);X.setTexture2D(n,0),ht.pixelStorei(37440,n.flipY),ht.pixelStorei(37441,n.premultiplyAlpha),ht.pixelStorei(3317,n.unpackAlignment),e.isDataTexture?ht.texSubImage2D(3553,r,t.x,t.y,i,s,o,a,e.image.data):e.isCompressedTexture?ht.compressedTexSubImage2D(3553,r,t.x,t.y,e.mipmaps[0].width,e.mipmaps[0].height,o,e.mipmaps[0].data):ht.texSubImage2D(3553,r,t.x,t.y,o,a,e.image),0===r&&n.generateMipmaps&&ht.generateMipmap(3553),W.unbindTexture()},this.copyTextureToTexture3D=function(t,e,n,r,i=0){if(f.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const{width:s,height:o,data:a}=n.image,l=lt.convert(r.format),c=lt.convert(r.type);let h;if(r.isDataTexture3D)X.setTexture3D(r,0),h=32879;else{if(!r.isDataTexture2DArray)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");X.setTexture2DArray(r,0),h=35866}ht.pixelStorei(37440,r.flipY),ht.pixelStorei(37441,r.premultiplyAlpha),ht.pixelStorei(3317,r.unpackAlignment);const u=ht.getParameter(3314),p=ht.getParameter(32878),d=ht.getParameter(3316),m=ht.getParameter(3315),g=ht.getParameter(32877);ht.pixelStorei(3314,s),ht.pixelStorei(32878,o),ht.pixelStorei(3316,t.min.x),ht.pixelStorei(3315,t.min.y),ht.pixelStorei(32877,t.min.z),ht.texSubImage3D(h,i,e.x,e.y,e.z,t.max.x-t.min.x+1,t.max.y-t.min.y+1,t.max.z-t.min.z+1,l,c,a),ht.pixelStorei(3314,u),ht.pixelStorei(32878,p),ht.pixelStorei(3316,d),ht.pixelStorei(3315,m),ht.pixelStorei(32877,g),0===i&&r.generateMipmaps&&ht.generateMipmap(h),W.unbindTexture()},this.initTexture=function(t){X.setTexture2D(t,0),W.unbindTexture()},this.resetState=function(){W.reset(),ct.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}exports.Group=hh,hh.prototype.isGroup=!0,Object.assign(uh.prototype,{constructor:uh,getHandSpace:function(){return null===this._hand&&(this._hand=new hh,this._hand.matrixAutoUpdate=!1,this._hand.visible=!1,this._hand.joints={},this._hand.inputState={pinching:!1}),this._hand},getTargetRaySpace:function(){return null===this._targetRay&&(this._targetRay=new hh,this._targetRay.matrixAutoUpdate=!1,this._targetRay.visible=!1),this._targetRay},getGripSpace:function(){return null===this._grip&&(this._grip=new hh,this._grip.matrixAutoUpdate=!1,this._grip.visible=!1),this._grip},dispatchEvent:function(t){return null!==this._targetRay&&this._targetRay.dispatchEvent(t),null!==this._grip&&this._grip.dispatchEvent(t),null!==this._hand&&this._hand.dispatchEvent(t),this},disconnect:function(t){return this.dispatchEvent({type:"disconnected",data:t}),null!==this._targetRay&&(this._targetRay.visible=!1),null!==this._grip&&(this._grip.visible=!1),null!==this._hand&&(this._hand.visible=!1),this},update:function(t,e,n){let r=null,i=null,s=null;const o=this._targetRay,a=this._grip,l=this._hand;if(t&&"visible-blurred"!==e.session.visibilityState)if(l&&t.hand){s=!0;for(const s of t.hand.values()){const t=e.getJointPose(s,n);if(void 0===l.joints[s.jointName]){const t=new hh;t.matrixAutoUpdate=!1,t.visible=!1,l.joints[s.jointName]=t,l.add(t)}const r=l.joints[s.jointName];null!==t&&(r.matrix.fromArray(t.transform.matrix),r.matrix.decompose(r.position,r.rotation,r.scale),r.jointRadius=t.radius),r.visible=null!==t}const r=l.joints["index-finger-tip"],i=l.joints["thumb-tip"],o=r.position.distanceTo(i.position),a=.02,c=.005;l.inputState.pinching&&o>a+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this})):!l.inputState.pinching&&o<=a-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this}))}else null!==o&&null!==(r=e.getPose(t.targetRaySpace,n))&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale)),null!==a&&t.gripSpace&&null!==(i=e.getPose(t.gripSpace,n))&&(a.matrix.fromArray(i.transform.matrix),a.matrix.decompose(a.position,a.rotation,a.scale));return null!==o&&(o.visible=null!==r),null!==a&&(a.visible=null!==i),null!==l&&(l.visible=null!==s),this}}),Object.assign(ph.prototype,In.prototype);class gh extends fh{}exports.WebGL1Renderer=gh,gh.prototype.isWebGL1Renderer=!0;class xh{constructor(t,e){this.name="",this.color=new xi(t),this.density=void 0!==e?e:25e-5}clone(){return new xh(this.color,this.density)}toJSON(){return{type:"FogExp2",color:this.color.getHex(),density:this.density}}}exports.FogExp2=xh,xh.prototype.isFogExp2=!0;class vh{constructor(t,e,n){this.name="",this.color=new xi(t),this.near=void 0!==e?e:1,this.far=void 0!==n?n:1e3}clone(){return new vh(this.color,this.near,this.far)}toJSON(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}}}exports.Fog=vh,vh.prototype.isFog=!0;class yh extends Xr{constructor(){super(),this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.overrideMaterial=null,this.autoUpdate=!0,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){return super.copy(t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.environment&&(this.environment=t.environment.clone()),null!==t.fog&&(this.fog=t.fog.clone()),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.autoUpdate=t.autoUpdate,this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){const e=super.toJSON(t);return null!==this.background&&(e.object.background=this.background.toJSON(t)),null!==this.environment&&(e.object.environment=this.environment.toJSON(t)),null!==this.fog&&(e.object.fog=this.fog.toJSON()),e}}function _h(t,e){this.array=t,this.stride=e,this.count=void 0!==t?t.length/e:0,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0,this.uuid=Fn.generateUUID()}exports.Scene=yh,yh.prototype.isScene=!0,Object.defineProperty(_h.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(_h.prototype,{isInterleavedBuffer:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.stride,n*=e.stride;for(let r=0,i=this.stride;r<i;r++)this.array[t+r]=e.array[n+r];return this},set:function(t,e=0){return this.array.set(t,e),this},clone:function(t){void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer);const e=new _h(new this.array.constructor(t.arrayBuffers[this.array.buffer._uuid]),this.stride);return e.setUsage(this.usage),e},onUpload:function(t){return this.onUploadCallback=t,this},toJSON:function(t){return void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=Array.prototype.slice.call(new Uint32Array(this.array.buffer))),{uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride}}});const bh=new Yn;function wh(t,e,n,r){this.name="",this.data=t,this.itemSize=e,this.offset=n,this.normalized=!0===r}Object.defineProperties(wh.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}},needsUpdate:{set:function(t){this.data.needsUpdate=t}}}),Object.assign(wh.prototype,{isInterleavedBufferAttribute:!0,applyMatrix4:function(t){for(let e=0,n=this.data.count;e<n;e++)bh.x=this.getX(e),bh.y=this.getY(e),bh.z=this.getZ(e),bh.applyMatrix4(t),this.setXYZ(e,bh.x,bh.y,bh.z);return this},setX:function(t,e){return this.data.array[t*this.data.stride+this.offset]=e,this},setY:function(t,e){return this.data.array[t*this.data.stride+this.offset+1]=e,this},setZ:function(t,e){return this.data.array[t*this.data.stride+this.offset+2]=e,this},setW:function(t,e){return this.data.array[t*this.data.stride+this.offset+3]=e,this},getX:function(t){return this.data.array[t*this.data.stride+this.offset]},getY:function(t){return this.data.array[t*this.data.stride+this.offset+1]},getZ:function(t){return this.data.array[t*this.data.stride+this.offset+2]},getW:function(t){return this.data.array[t*this.data.stride+this.offset+3]},setXY:function(t,e,n){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this.data.array[t+3]=i,this},clone:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return new bi(new this.array.constructor(t),this.itemSize,this.normalized)}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.clone(t)),new wh(t.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized)},toJSON:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return{itemSize:this.itemSize,type:this.array.constructor.name,array:t,normalized:this.normalized}}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}});class Mh extends hi{constructor(t){super(),this.type="SpriteMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.rotation=0,this.sizeAttenuation=!0,this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.rotation=t.rotation,this.sizeAttenuation=t.sizeAttenuation,this}}let Sh;exports.SpriteMaterial=Mh,Mh.prototype.isSpriteMaterial=!0;const Th=new Yn,Eh=new Yn,Ah=new Yn,Lh=new On,Rh=new On,Ch=new wr,Ph=new Yn,Dh=new Yn,Ih=new Yn,Bh=new On,Nh=new On,Fh=new On;class Oh extends Xr{constructor(t){if(super(),this.type="Sprite",void 0===Sh){Sh=new ki;const t=new _h(new Float32Array([-.5,-.5,0,0,0,.5,-.5,0,1,0,.5,.5,0,1,1,-.5,.5,0,0,1]),5);Sh.setIndex([0,1,2,0,2,3]),Sh.setAttribute("position",new wh(t,3,0,!1)),Sh.setAttribute("uv",new wh(t,2,3,!1))}this.geometry=Sh,this.material=void 0!==t?t:new Mh,this.center=new On(.5,.5)}raycast(t,e){null===t.camera&&console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.'),Eh.setFromMatrixScale(this.matrixWorld),Ch.copy(t.camera.matrixWorld),this.modelViewMatrix.multiplyMatrices(t.camera.matrixWorldInverse,this.matrixWorld),Ah.setFromMatrixPosition(this.modelViewMatrix),t.camera.isPerspectiveCamera&&!1===this.material.sizeAttenuation&&Eh.multiplyScalar(-Ah.z);const n=this.material.rotation;let r,i;0!==n&&(i=Math.cos(n),r=Math.sin(n));const s=this.center;zh(Ph.set(-.5,-.5,0),Ah,s,Eh,r,i),zh(Dh.set(.5,-.5,0),Ah,s,Eh,r,i),zh(Ih.set(.5,.5,0),Ah,s,Eh,r,i),Bh.set(0,0),Nh.set(1,0),Fh.set(1,1);let o=t.ray.intersectTriangle(Ph,Dh,Ih,!1,Th);if(null===o&&(zh(Dh.set(-.5,.5,0),Ah,s,Eh,r,i),Nh.set(0,1),null===(o=t.ray.intersectTriangle(Ph,Ih,Dh,!1,Th))))return;const a=t.ray.origin.distanceTo(Th);a<t.near||a>t.far||e.push({distance:a,point:Th.clone(),uv:li.getUV(Th,Ph,Dh,Ih,Bh,Nh,Fh,new On),face:null,object:this})}copy(t){return super.copy(t),void 0!==t.center&&this.center.copy(t.center),this.material=t.material,this}}function zh(t,e,n,r,i,s){Lh.subVectors(t,n).addScalar(.5).multiply(r),void 0!==i?(Rh.x=s*Lh.x-i*Lh.y,Rh.y=i*Lh.x+s*Lh.y):Rh.copy(Lh),t.copy(e),t.x+=Rh.x,t.y+=Rh.y,t.applyMatrix4(Ch)}exports.Sprite=Oh,Oh.prototype.isSprite=!0;const Gh=new Yn,Hh=new Yn;class Uh extends Xr{constructor(){super(),this._currentLevel=0,this.type="LOD",Object.defineProperties(this,{levels:{enumerable:!0,value:[]},isLOD:{value:!0}}),this.autoUpdate=!0}copy(t){super.copy(t,!1);const e=t.levels;for(let n=0,r=e.length;n<r;n++){const t=e[n];this.addLevel(t.object.clone(),t.distance)}return this.autoUpdate=t.autoUpdate,this}addLevel(t,e=0){e=Math.abs(e);const n=this.levels;let r;for(r=0;r<n.length&&!(e<n[r].distance);r++);return n.splice(r,0,{distance:e,object:t}),this.add(t),this}getCurrentLevel(){return this._currentLevel}getObjectForDistance(t){const e=this.levels;if(e.length>0){let n,r;for(n=1,r=e.length;n<r&&!(t<e[n].distance);n++);return e[n-1].object}return null}raycast(t,e){if(this.levels.length>0){Gh.setFromMatrixPosition(this.matrixWorld);const n=t.ray.origin.distanceTo(Gh);this.getObjectForDistance(n).raycast(t,e)}}update(t){const e=this.levels;if(e.length>1){Gh.setFromMatrixPosition(t.matrixWorld),Hh.setFromMatrixPosition(this.matrixWorld);const n=Gh.distanceTo(Hh)/t.zoom;let r,i;for(e[0].object.visible=!0,r=1,i=e.length;r<i&&n>=e[r].distance;r++)e[r-1].object.visible=!1,e[r].object.visible=!0;for(this._currentLevel=r-1;r<i;r++)e[r].object.visible=!1}}toJSON(t){const e=super.toJSON(t);!1===this.autoUpdate&&(e.object.autoUpdate=!1),e.object.levels=[];const n=this.levels;for(let r=0,i=n.length;r<i;r++){const t=n[r];e.object.levels.push({object:t.object.uuid,distance:t.distance})}return e}}exports.LOD=Uh;const kh=new Yn,Vh=new Wn,Wh=new Wn,jh=new Yn,qh=new wr;function Xh(t,e){os.call(this,t,e),this.type="SkinnedMesh",this.bindMode="attached",this.bindMatrix=new wr,this.bindMatrixInverse=new wr}function Yh(){Xr.call(this),this.type="Bone"}Xh.prototype=Object.assign(Object.create(os.prototype),{constructor:Xh,isSkinnedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.bindMode=t.bindMode,this.bindMatrix.copy(t.bindMatrix),this.bindMatrixInverse.copy(t.bindMatrixInverse),this.skeleton=t.skeleton,this},bind:function(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.copy(e).invert()},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){const t=new Wn,e=this.geometry.attributes.skinWeight;for(let n=0,r=e.count;n<r;n++){t.x=e.getX(n),t.y=e.getY(n),t.z=e.getZ(n),t.w=e.getW(n);const r=1/t.manhattanLength();r!==1/0?t.multiplyScalar(r):t.set(1,0,0,0),e.setXYZW(n,t.x,t.y,t.z,t.w)}},updateMatrixWorld:function(t){os.prototype.updateMatrixWorld.call(this,t),"attached"===this.bindMode?this.bindMatrixInverse.copy(this.matrixWorld).invert():"detached"===this.bindMode?this.bindMatrixInverse.copy(this.bindMatrix).invert():console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)},boneTransform:function(t,e){const n=this.skeleton,r=this.geometry;Vh.fromBufferAttribute(r.attributes.skinIndex,t),Wh.fromBufferAttribute(r.attributes.skinWeight,t),kh.fromBufferAttribute(r.attributes.position,t).applyMatrix4(this.bindMatrix),e.set(0,0,0);for(let i=0;i<4;i++){const t=Wh.getComponent(i);if(0!==t){const r=Vh.getComponent(i);qh.multiplyMatrices(n.bones[r].matrixWorld,n.boneInverses[r]),e.addScaledVector(jh.copy(kh).applyMatrix4(qh),t)}}return e.applyMatrix4(this.bindMatrixInverse)}}),Yh.prototype=Object.assign(Object.create(Xr.prototype),{constructor:Yh,isBone:!0});const Zh=new wr,Jh=new wr;class Qh{constructor(t=[],e=[]){this.uuid=Fn.generateUUID(),this.bones=t.slice(0),this.boneInverses=e,this.boneMatrices=null,this.boneTexture=null,this.boneTextureSize=0,this.frame=-1,this.init()}init(){const t=this.bones,e=this.boneInverses;if(this.boneMatrices=new Float32Array(16*t.length),0===e.length)this.calculateInverses();else if(t.length!==e.length){console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones."),this.boneInverses=[];for(let t=0,e=this.bones.length;t<e;t++)this.boneInverses.push(new wr)}}calculateInverses(){this.boneInverses.length=0;for(let t=0,e=this.bones.length;t<e;t++){const e=new wr;this.bones[t]&&e.copy(this.bones[t].matrixWorld).invert(),this.boneInverses.push(e)}}pose(){for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&e.matrixWorld.copy(this.boneInverses[t]).invert()}for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&(e.parent&&e.parent.isBone?(e.matrix.copy(e.parent.matrixWorld).invert(),e.matrix.multiply(e.matrixWorld)):e.matrix.copy(e.matrixWorld),e.matrix.decompose(e.position,e.quaternion,e.scale))}}update(){const t=this.bones,e=this.boneInverses,n=this.boneMatrices,r=this.boneTexture;for(let i=0,s=t.length;i<s;i++){const r=t[i]?t[i].matrixWorld:Jh;Zh.multiplyMatrices(r,e[i]),Zh.toArray(n,16*i)}null!==r&&(r.needsUpdate=!0)}clone(){return new Qh(this.bones,this.boneInverses)}getBoneByName(t){for(let e=0,n=this.bones.length;e<n;e++){const n=this.bones[e];if(n.name===t)return n}}dispose(){null!==this.boneTexture&&(this.boneTexture.dispose(),this.boneTexture=null)}fromJSON(t,e){this.uuid=t.uuid;for(let n=0,r=t.bones.length;n<r;n++){const r=t.bones[n];let i=e[r];void 0===i&&(console.warn("THREE.Skeleton: No bone found with UUID:",r),i=new Yh),this.bones.push(i),this.boneInverses.push((new wr).fromArray(t.boneInverses[n]))}return this.init(),this}toJSON(){const t={metadata:{version:4.5,type:"Skeleton",generator:"Skeleton.toJSON"},bones:[],boneInverses:[]};t.uuid=this.uuid;const e=this.bones,n=this.boneInverses;for(let r=0,i=e.length;r<i;r++){const i=e[r];t.bones.push(i.uuid);const s=n[r];t.boneInverses.push(s.toArray())}return t}}exports.Skeleton=Qh;const Kh=new wr,$h=new wr,tu=[],eu=new os;function nu(t,e,n){os.call(this,t,e),this.instanceMatrix=new bi(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.frustumCulled=!1}nu.prototype=Object.assign(Object.create(os.prototype),{constructor:nu,isInstancedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.instanceMatrix.copy(t.instanceMatrix),null!==t.instanceColor&&(this.instanceColor=t.instanceColor.clone()),this.count=t.count,this},getColorAt:function(t,e){e.fromArray(this.instanceColor.array,3*t)},getMatrixAt:function(t,e){e.fromArray(this.instanceMatrix.array,16*t)},raycast:function(t,e){const n=this.matrixWorld,r=this.count;if(eu.geometry=this.geometry,eu.material=this.material,void 0!==eu.material)for(let i=0;i<r;i++){this.getMatrixAt(i,Kh),$h.multiplyMatrices(n,Kh),eu.matrixWorld=$h,eu.raycast(t,tu);for(let t=0,n=tu.length;t<n;t++){const n=tu[t];n.instanceId=i,n.object=this,e.push(n)}tu.length=0}},setColorAt:function(t,e){null===this.instanceColor&&(this.instanceColor=new bi(new Float32Array(3*this.count),3)),e.toArray(this.instanceColor.array,3*t)},setMatrixAt:function(t,e){e.toArray(this.instanceMatrix.array,16*t)},updateMorphTargets:function(){},dispose:function(){this.dispatchEvent({type:"dispose"})}});class ru extends hi{constructor(t){super(),this.type="LineBasicMaterial",this.color=new xi(16777215),this.linewidth=1,this.linecap="round",this.linejoin="round",this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this.morphTargets=t.morphTargets,this}}exports.LineBasicMaterial=ru,ru.prototype.isLineBasicMaterial=!0;const iu=new Yn,su=new Yn,ou=new wr,au=new br,lu=new dr;function cu(t=new ki,e=new ru){Xr.call(this),this.type="Line",this.geometry=t,this.material=e,this.updateMorphTargets()}cu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:cu,isLine:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[0];for(let t=1,r=e.count;t<r;t++)iu.fromBufferAttribute(e,t-1),su.fromBufferAttribute(e,t),n[t]=n[t-1],n[t]+=iu.distanceTo(su);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Line.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),lu.copy(n.boundingSphere),lu.applyMatrix4(r),lu.radius+=i,!1===t.ray.intersectsSphere(lu))return;ou.copy(r).invert(),au.copy(t.ray).applyMatrix4(ou);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s,a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=this.isLineSegments?2:1;if(n.isBufferGeometry){const r=n.index,i=n.attributes.position;if(null!==r){const n=r.array;for(let r=0,s=n.length-1;r<s;r+=u){const s=n[r],u=n[r+1];if(a.fromBufferAttribute(i,s),l.fromBufferAttribute(i,u),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const p=t.ray.origin.distanceTo(h);p<t.near||p>t.far||e.push({distance:p,point:c.clone().applyMatrix4(this.matrixWorld),index:r,face:null,faceIndex:null,object:this})}}else for(let n=0,s=i.count-1;n<s;n+=u){if(a.fromBufferAttribute(i,n),l.fromBufferAttribute(i,n+1),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const r=t.ray.origin.distanceTo(h);r<t.near||r>t.far||e.push({distance:r,point:c.clone().applyMatrix4(this.matrixWorld),index:n,face:null,faceIndex:null,object:this})}}else n.isGeometry&&console.error("THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});const hu=new Yn,uu=new Yn;function pu(t,e){cu.call(this,t,e),this.type="LineSegments"}pu.prototype=Object.assign(Object.create(cu.prototype),{constructor:pu,isLineSegments:!0,computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[];for(let t=0,r=e.count;t<r;t+=2)hu.fromBufferAttribute(e,t),uu.fromBufferAttribute(e,t+1),n[t]=0===t?0:n[t-1],n[t+1]=n[t]+hu.distanceTo(uu);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this}});class du extends cu{constructor(t,e){super(t,e),this.type="LineLoop"}}exports.LineLoop=du,du.prototype.isLineLoop=!0;class mu extends hi{constructor(t){super(),this.type="PointsMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.size=1,this.sizeAttenuation=!0,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this.morphTargets=t.morphTargets,this}}exports.PointsMaterial=mu,mu.prototype.isPointsMaterial=!0;const fu=new wr,gu=new br,xu=new dr,vu=new Yn;function yu(t=new ki,e=new mu){Xr.call(this),this.type="Points",this.geometry=t,this.material=e,this.updateMorphTargets()}function _u(t,e,n,r,i,s,o){const a=gu.distanceSqToPoint(t);if(a<n){const n=new Yn;gu.closestPointToPoint(t,n),n.applyMatrix4(r);const l=i.ray.origin.distanceTo(n);if(l<i.near||l>i.far)return;s.push({distance:l,distanceToRay:Math.sqrt(a),point:n,index:e,face:null,object:o})}}yu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:yu,isPoints:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Points.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),xu.copy(n.boundingSphere),xu.applyMatrix4(r),xu.radius+=i,!1===t.ray.intersectsSphere(xu))return;fu.copy(r).invert(),gu.copy(t.ray).applyMatrix4(fu);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s;if(n.isBufferGeometry){const i=n.index,s=n.attributes.position;if(null!==i){const n=i.array;for(let i=0,a=n.length;i<a;i++){const a=n[i];vu.fromBufferAttribute(s,a),_u(vu,a,o,r,t,e,this)}}else for(let n=0,a=s.count;n<a;n++)vu.fromBufferAttribute(s,n),_u(vu,n,o,r,t,e,this)}else console.error("THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});class bu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.format=void 0!==o?o:Bt,this.minFilter=void 0!==s?s:gt,this.magFilter=void 0!==i?i:gt,this.generateMipmaps=!1;const c=this;"requestVideoFrameCallback"in t&&t.requestVideoFrameCallback(function e(){c.needsUpdate=!0,t.requestVideoFrameCallback(e)})}clone(){return new this.constructor(this.image).copy(this)}update(){const t=this.image;!1==="requestVideoFrameCallback"in t&&t.readyState>=t.HAVE_CURRENT_DATA&&(this.needsUpdate=!0)}}exports.VideoTexture=bu,bu.prototype.isVideoTexture=!0;class wu extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={width:e,height:n},this.mipmaps=t,this.flipY=!1,this.generateMipmaps=!1}}exports.CompressedTexture=wu,wu.prototype.isCompressedTexture=!0;class Mu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.needsUpdate=!0}}exports.CanvasTexture=Mu,Mu.prototype.isCanvasTexture=!0;class Su extends kn{constructor(t,e,n,r,i,s,o,a,l,c){if((c=void 0!==c?c:Gt)!==Gt&&c!==Ht)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===Gt&&(n=St),void 0===n&&c===Ht&&(n=Dt),super(null,r,i,s,o,a,c,n,l),this.image={width:t,height:e},this.magFilter=void 0!==o?o:ut,this.minFilter=void 0!==a?a:ut,this.flipY=!1,this.generateMipmaps=!1}}exports.DepthTexture=Su,Su.prototype.isDepthTexture=!0;class Tu extends ki{constructor(t=1,e=8,n=0,r=2*Math.PI){super(),this.type="CircleGeometry",this.parameters={radius:t,segments:e,thetaStart:n,thetaLength:r},e=Math.max(3,e);const i=[],s=[],o=[],a=[],l=new Yn,c=new On;s.push(0,0,0),o.push(0,0,1),a.push(.5,.5);for(let h=0,u=3;h<=e;h++,u+=3){const i=n+h/e*r;l.x=t*Math.cos(i),l.y=t*Math.sin(i),s.push(l.x,l.y,l.z),o.push(0,0,1),c.x=(s[u]/t+1)/2,c.y=(s[u+1]/t+1)/2,a.push(c.x,c.y)}for(let h=1;h<=e;h++)i.push(h,h+1,0);this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("normal",new Ci(o,3)),this.setAttribute("uv",new Ci(a,2))}}exports.CircleGeometry=exports.CircleBufferGeometry=Tu;class Eu extends ki{constructor(t=1,e=1,n=1,r=8,i=1,s=!1,o=0,a=2*Math.PI){super(),this.type="CylinderGeometry",this.parameters={radiusTop:t,radiusBottom:e,height:n,radialSegments:r,heightSegments:i,openEnded:s,thetaStart:o,thetaLength:a};const l=this;r=Math.floor(r),i=Math.floor(i);const c=[],h=[],u=[],p=[];let d=0;const m=[],f=n/2;let g=0;function x(n){const i=d,s=new On,m=new Yn;let x=0;const v=!0===n?t:e,y=!0===n?1:-1;for(let t=1;t<=r;t++)h.push(0,f*y,0),u.push(0,y,0),p.push(.5,.5),d++;const _=d;for(let t=0;t<=r;t++){const e=t/r*a+o,n=Math.cos(e),i=Math.sin(e);m.x=v*i,m.y=f*y,m.z=v*n,h.push(m.x,m.y,m.z),u.push(0,y,0),s.x=.5*n+.5,s.y=.5*i*y+.5,p.push(s.x,s.y),d++}for(let t=0;t<r;t++){const e=i+t,r=_+t;!0===n?c.push(r,r+1,e):c.push(r+1,r,e),x+=3}l.addGroup(g,x,!0===n?1:2),g+=x}!function(){const s=new Yn,x=new Yn;let v=0;const y=(e-t)/n;for(let l=0;l<=i;l++){const c=[],g=l/i,v=g*(e-t)+t;for(let t=0;t<=r;t++){const e=t/r,i=e*a+o,l=Math.sin(i),m=Math.cos(i);x.x=v*l,x.y=-g*n+f,x.z=v*m,h.push(x.x,x.y,x.z),s.set(l,y,m).normalize(),u.push(s.x,s.y,s.z),p.push(e,1-g),c.push(d++)}m.push(c)}for(let t=0;t<r;t++)for(let e=0;e<i;e++){const n=m[e][t],r=m[e+1][t],i=m[e+1][t+1],s=m[e][t+1];c.push(n,r,s),c.push(r,i,s),v+=6}l.addGroup(g,v,0),g+=v}(),!1===s&&(t>0&&x(!0),e>0&&x(!1)),this.setIndex(c),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}}exports.CylinderGeometry=exports.CylinderBufferGeometry=Eu;class Au extends Eu{constructor(t=1,e=1,n=8,r=1,i=!1,s=0,o=2*Math.PI){super(0,t,e,n,r,i,s,o),this.type="ConeGeometry",this.parameters={radius:t,height:e,radialSegments:n,heightSegments:r,openEnded:i,thetaStart:s,thetaLength:o}}}exports.ConeGeometry=exports.ConeBufferGeometry=Au;class Lu extends ki{constructor(t,e,n=1,r=0){super(),this.type="PolyhedronGeometry",this.parameters={vertices:t,indices:e,radius:n,detail:r};const i=[],s=[];function o(t,e,n,r){const i=r+1,s=[];for(let o=0;o<=i;o++){s[o]=[];const r=t.clone().lerp(n,o/i),a=e.clone().lerp(n,o/i),l=i-o;for(let t=0;t<=l;t++)s[o][t]=0===t&&o===i?r:r.clone().lerp(a,t/l)}for(let o=0;o<i;o++)for(let t=0;t<2*(i-o)-1;t++){const e=Math.floor(t/2);t%2==0?(a(s[o][e+1]),a(s[o+1][e]),a(s[o][e])):(a(s[o][e+1]),a(s[o+1][e+1]),a(s[o+1][e]))}}function a(t){i.push(t.x,t.y,t.z)}function l(e,n){const r=3*e;n.x=t[r+0],n.y=t[r+1],n.z=t[r+2]}function c(t,e,n,r){r<0&&1===t.x&&(s[e]=t.x-1),0===n.x&&0===n.z&&(s[e]=r/2/Math.PI+.5)}function h(t){return Math.atan2(t.z,-t.x)}!function(t){const n=new Yn,r=new Yn,i=new Yn;for(let s=0;s<e.length;s+=3)l(e[s+0],n),l(e[s+1],r),l(e[s+2],i),o(n,r,i,t)}(r),function(t){const e=new Yn;for(let n=0;n<i.length;n+=3)e.x=i[n+0],e.y=i[n+1],e.z=i[n+2],e.normalize().multiplyScalar(t),i[n+0]=e.x,i[n+1]=e.y,i[n+2]=e.z}(n),function(){const t=new Yn;for(let n=0;n<i.length;n+=3){t.x=i[n+0],t.y=i[n+1],t.z=i[n+2];const r=h(t)/2/Math.PI+.5,o=(e=t,Math.atan2(-e.y,Math.sqrt(e.x*e.x+e.z*e.z))/Math.PI+.5);s.push(r,1-o)}var e;(function(){const t=new Yn,e=new Yn,n=new Yn,r=new Yn,o=new On,a=new On,l=new On;for(let u=0,p=0;u<i.length;u+=9,p+=6){t.set(i[u+0],i[u+1],i[u+2]),e.set(i[u+3],i[u+4],i[u+5]),n.set(i[u+6],i[u+7],i[u+8]),o.set(s[p+0],s[p+1]),a.set(s[p+2],s[p+3]),l.set(s[p+4],s[p+5]),r.copy(t).add(e).add(n).divideScalar(3);const d=h(r);c(o,p+0,t,d),c(a,p+2,e,d),c(l,p+4,n,d)}})(),function(){for(let t=0;t<s.length;t+=6){const e=s[t+0],n=s[t+2],r=s[t+4],i=Math.max(e,n,r),o=Math.min(e,n,r);i>.9&&o<.1&&(e<.2&&(s[t+0]+=1),n<.2&&(s[t+2]+=1),r<.2&&(s[t+4]+=1))}}()}(),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(i.slice(),3)),this.setAttribute("uv",new Ci(s,2)),0===r?this.computeVertexNormals():this.normalizeNormals()}}exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=Lu;class Ru extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2,r=1/n;super([-1,-1,-1,-1,-1,1,-1,1,-1,-1,1,1,1,-1,-1,1,-1,1,1,1,-1,1,1,1,0,-r,-n,0,-r,n,0,r,-n,0,r,n,-r,-n,0,-r,n,0,r,-n,0,r,n,0,-n,0,-r,n,0,-r,-n,0,r,n,0,r],[3,11,7,3,7,15,3,15,13,7,19,17,7,17,6,7,6,15,17,4,8,17,8,10,17,10,6,8,0,16,8,16,2,8,2,10,0,12,1,0,1,18,0,18,16,6,10,2,6,2,13,6,13,15,2,16,18,2,18,3,2,3,13,18,1,9,18,9,11,18,11,3,4,14,12,4,12,0,4,0,8,11,9,5,11,5,19,11,19,7,19,5,14,19,14,4,19,4,17,1,12,14,1,14,5,1,5,9],t,e),this.type="DodecahedronGeometry",this.parameters={radius:t,detail:e}}}exports.DodecahedronGeometry=exports.DodecahedronBufferGeometry=Ru;const Cu=new Yn,Pu=new Yn,Du=new Yn,Iu=new li;class Bu extends ki{constructor(t,e){if(super(),this.type="EdgesGeometry",this.parameters={thresholdAngle:e},e=void 0!==e?e:1,!0===t.isGeometry)return void console.error("THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const n=Math.pow(10,4),r=Math.cos(Fn.DEG2RAD*e),i=t.getIndex(),s=t.getAttribute("position"),o=i?i.count:s.count,a=[0,0,0],l=["a","b","c"],c=new Array(3),h={},u=[];for(let p=0;p<o;p+=3){i?(a[0]=i.getX(p),a[1]=i.getX(p+1),a[2]=i.getX(p+2)):(a[0]=p,a[1]=p+1,a[2]=p+2);const{a:t,b:e,c:o}=Iu;if(t.fromBufferAttribute(s,a[0]),e.fromBufferAttribute(s,a[1]),o.fromBufferAttribute(s,a[2]),Iu.getNormal(Du),c[0]=`${Math.round(t.x*n)},${Math.round(t.y*n)},${Math.round(t.z*n)}`,c[1]=`${Math.round(e.x*n)},${Math.round(e.y*n)},${Math.round(e.z*n)}`,c[2]=`${Math.round(o.x*n)},${Math.round(o.y*n)},${Math.round(o.z*n)}`,c[0]!==c[1]&&c[1]!==c[2]&&c[2]!==c[0])for(let n=0;n<3;n++){const t=(n+1)%3,e=c[n],i=c[t],s=Iu[l[n]],o=Iu[l[t]],p=`${e}_${i}`,d=`${i}_${e}`;d in h&&h[d]?(Du.dot(h[d].normal)<=r&&(u.push(s.x,s.y,s.z),u.push(o.x,o.y,o.z)),h[d]=null):p in h||(h[p]={index0:a[n],index1:a[t],normal:Du.clone()})}}for(const p in h)if(h[p]){const{index0:t,index1:e}=h[p];Cu.fromBufferAttribute(s,t),Pu.fromBufferAttribute(s,e),u.push(Cu.x,Cu.y,Cu.z),u.push(Pu.x,Pu.y,Pu.z)}this.setAttribute("position",new Ci(u,3))}}exports.EdgesGeometry=Bu;const Nu={triangulate:function(t,e,n){n=n||2;const r=e&&e.length,i=r?e[0]*n:t.length;let s=Fu(t,0,i,n,!0);const o=[];if(!s||s.next===s.prev)return o;let a,l,c,h,u,p,d;if(r&&(s=Vu(t,e,s,n)),t.length>80*n){a=c=t[0],l=h=t[1];for(let e=n;e<i;e+=n)(u=t[e])<a&&(a=u),(p=t[e+1])<l&&(l=p),u>c&&(c=u),p>h&&(h=p);d=0!==(d=Math.max(c-a,h-l))?1/d:0}return zu(s,o,n,a,l,d),o}};function Fu(t,e,n,r,i){let s,o;if(i===pp(t,e,n,r)>0)for(s=e;s<n;s+=r)o=cp(s,t[s],t[s+1],o);else for(s=n-r;s>=e;s-=r)o=cp(s,t[s],t[s+1],o);return o&&ep(o,o.next)&&(hp(o),o=o.next),o}function Ou(t,e){if(!t)return t;e||(e=t);let n,r=t;do{if(n=!1,r.steiner||!ep(r,r.next)&&0!==tp(r.prev,r,r.next))r=r.next;else{if(hp(r),(r=e=r.prev)===r.next)break;n=!0}}while(n||r!==e);return e}function zu(t,e,n,r,i,s,o){if(!t)return;!o&&s&&Yu(t,r,i,s);let a,l,c=t;for(;t.prev!==t.next;)if(a=t.prev,l=t.next,s?Hu(t,r,i,s):Gu(t))e.push(a.i/n),e.push(t.i/n),e.push(l.i/n),hp(t),t=l.next,c=l.next;else if((t=l)===c){o?1===o?zu(t=Uu(Ou(t),e,n),e,n,r,i,s,2):2===o&&ku(t,e,n,r,i,s):zu(Ou(t),e,n,r,i,s,1);break}}function Gu(t){const e=t.prev,n=t,r=t.next;if(tp(e,n,r)>=0)return!1;let i=t.next.next;for(;i!==t.prev;){if(Ku(e.x,e.y,n.x,n.y,r.x,r.y,i.x,i.y)&&tp(i.prev,i,i.next)>=0)return!1;i=i.next}return!0}function Hu(t,e,n,r){const i=t.prev,s=t,o=t.next;if(tp(i,s,o)>=0)return!1;const a=i.x<s.x?i.x<o.x?i.x:o.x:s.x<o.x?s.x:o.x,l=i.y<s.y?i.y<o.y?i.y:o.y:s.y<o.y?s.y:o.y,c=i.x>s.x?i.x>o.x?i.x:o.x:s.x>o.x?s.x:o.x,h=i.y>s.y?i.y>o.y?i.y:o.y:s.y>o.y?s.y:o.y,u=Ju(a,l,e,n,r),p=Ju(c,h,e,n,r);let d=t.prevZ,m=t.nextZ;for(;d&&d.z>=u&&m&&m.z<=p;){if(d!==t.prev&&d!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,d.x,d.y)&&tp(d.prev,d,d.next)>=0)return!1;if(d=d.prevZ,m!==t.prev&&m!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,m.x,m.y)&&tp(m.prev,m,m.next)>=0)return!1;m=m.nextZ}for(;d&&d.z>=u;){if(d!==t.prev&&d!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,d.x,d.y)&&tp(d.prev,d,d.next)>=0)return!1;d=d.prevZ}for(;m&&m.z<=p;){if(m!==t.prev&&m!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,m.x,m.y)&&tp(m.prev,m,m.next)>=0)return!1;m=m.nextZ}return!0}function Uu(t,e,n){let r=t;do{const i=r.prev,s=r.next.next;!ep(i,s)&&np(i,r,r.next,s)&&op(i,s)&&op(s,i)&&(e.push(i.i/n),e.push(r.i/n),e.push(s.i/n),hp(r),hp(r.next),r=t=s),r=r.next}while(r!==t);return Ou(r)}function ku(t,e,n,r,i,s){let o=t;do{let t=o.next.next;for(;t!==o.prev;){if(o.i!==t.i&&$u(o,t)){let a=lp(o,t);return o=Ou(o,o.next),a=Ou(a,a.next),zu(o,e,n,r,i,s),void zu(a,e,n,r,i,s)}t=t.next}o=o.next}while(o!==t)}function Vu(t,e,n,r){const i=[];let 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i=t;do{null===i.z&&(i.z=Ju(i.x,i.y,e,n,r)),i.prevZ=i.prev,i.nextZ=i.next,i=i.next}while(i!==t);i.prevZ.nextZ=null,i.prevZ=null,Zu(i)}function Zu(t){let e,n,r,i,s,o,a,l,c=1;do{for(n=t,t=null,s=null,o=0;n;){for(o++,r=n,a=0,e=0;e<c&&(a++,r=r.nextZ);e++);for(l=c;a>0||l>0&&r;)0!==a&&(0===l||!r||n.z<=r.z)?(i=n,n=n.nextZ,a--):(i=r,r=r.nextZ,l--),s?s.nextZ=i:t=i,i.prevZ=s,s=i;n=r}s.nextZ=null,c*=2}while(o>1);return t}function Ju(t,e,n,r,i){return(t=1431655765&((t=858993459&((t=252645135&((t=16711935&((t=32767*(t-n)*i)|t<<8))|t<<4))|t<<2))|t<<1))|(e=1431655765&((e=858993459&((e=252645135&((e=16711935&((e=32767*(e-r)*i)|e<<8))|e<<4))|e<<2))|e<<1))<<1}function Qu(t){let e=t,n=t;do{(e.x<n.x||e.x===n.x&&e.y<n.y)&&(n=e),e=e.next}while(e!==t);return n}function Ku(t,e,n,r,i,s,o,a){return(i-o)*(e-a)-(t-o)*(s-a)>=0&&(t-o)*(r-a)-(n-o)*(e-a)>=0&&(n-o)*(s-a)-(i-o)*(r-a)>=0}function $u(t,e){return t.next.i!==e.i&&t.prev.i!==e.i&&!sp(t,e)&&(op(t,e)&&op(e,t)&&ap(t,e)&&(tp(t.prev,t,e.prev)||tp(t,e.prev,e))||ep(t,e)&&tp(t.prev,t,t.next)>0&&tp(e.prev,e,e.next)>0)}function tp(t,e,n){return(e.y-t.y)*(n.x-e.x)-(e.x-t.x)*(n.y-e.y)}function ep(t,e){return t.x===e.x&&t.y===e.y}function np(t,e,n,r){const i=ip(tp(t,e,n)),s=ip(tp(t,e,r)),o=ip(tp(n,r,t)),a=ip(tp(n,r,e));return i!==s&&o!==a||(!(0!==i||!rp(t,n,e))||(!(0!==s||!rp(t,r,e))||(!(0!==o||!rp(n,t,r))||!(0!==a||!rp(n,e,r)))))}function rp(t,e,n){return e.x<=Math.max(t.x,n.x)&&e.x>=Math.min(t.x,n.x)&&e.y<=Math.max(t.y,n.y)&&e.y>=Math.min(t.y,n.y)}function ip(t){return t>0?1:t<0?-1:0}function sp(t,e){let n=t;do{if(n.i!==t.i&&n.next.i!==t.i&&n.i!==e.i&&n.next.i!==e.i&&np(n,n.next,t,e))return!0;n=n.next}while(n!==t);return!1}function op(t,e){return tp(t.prev,t,t.next)<0?tp(t,e,t.next)>=0&&tp(t,t.prev,e)>=0:tp(t,e,t.prev)<0||tp(t,t.next,e)<0}function ap(t,e){let n=t,r=!1;const i=(t.x+e.x)/2,s=(t.y+e.y)/2;do{n.y>s!=n.next.y>s&&n.next.y!==n.y&&i<(n.next.x-n.x)*(s-n.y)/(n.next.y-n.y)+n.x&&(r=!r),n=n.next}while(n!==t);return r}function lp(t,e){const n=new up(t.i,t.x,t.y),r=new up(e.i,e.x,e.y),i=t.next,s=e.prev;return t.next=e,e.prev=t,n.next=i,i.prev=n,r.next=n,n.prev=r,s.next=r,r.prev=s,r}function cp(t,e,n,r){const i=new up(t,e,n);return r?(i.next=r.next,i.prev=r,r.next.prev=i,r.next=i):(i.prev=i,i.next=i),i}function hp(t){t.next.prev=t.prev,t.prev.next=t.next,t.prevZ&&(t.prevZ.nextZ=t.nextZ),t.nextZ&&(t.nextZ.prevZ=t.prevZ)}function up(t,e,n){this.i=t,this.x=e,this.y=n,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1}function pp(t,e,n,r){let i=0;for(let s=e,o=n-r;s<n;s+=r)i+=(t[o]-t[s])*(t[s+1]+t[o+1]),o=s;return i}const dp={area:function(t){const e=t.length;let n=0;for(let r=e-1,i=0;i<e;r=i++)n+=t[r].x*t[i].y-t[i].x*t[r].y;return.5*n},isClockWise:function(t){return dp.area(t)<0},triangulateShape:function(t,e){const n=[],r=[],i=[];mp(t),fp(n,t);let s=t.length;e.forEach(mp);for(let a=0;a<e.length;a++)r.push(s),s+=e[a].length,fp(n,e[a]);const o=Nu.triangulate(n,r);for(let a=0;a<o.length;a+=3)i.push(o.slice(a,a+3));return i}};function mp(t){const e=t.length;e>2&&t[e-1].equals(t[0])&&t.pop()}function fp(t,e){for(let n=0;n<e.length;n++)t.push(e[n].x),t.push(e[n].y)}exports.ShapeUtils=dp;class gp extends ki{constructor(t,e){super(),this.type="ExtrudeGeometry",this.parameters={shapes:t,options:e},t=Array.isArray(t)?t:[t];const n=this,r=[],i=[];for(let o=0,a=t.length;o<a;o++){s(t[o])}function s(t){const s=[],o=void 0!==e.curveSegments?e.curveSegments:12,a=void 0!==e.steps?e.steps:1;let l=void 0!==e.depth?e.depth:100,c=void 0===e.bevelEnabled||e.bevelEnabled,h=void 0!==e.bevelThickness?e.bevelThickness:6,u=void 0!==e.bevelSize?e.bevelSize:h-2,p=void 0!==e.bevelOffset?e.bevelOffset:0,d=void 0!==e.bevelSegments?e.bevelSegments:3;const m=e.extrudePath,f=void 0!==e.UVGenerator?e.UVGenerator:xp;void 0!==e.amount&&(console.warn("THREE.ExtrudeBufferGeometry: amount has been renamed to depth."),l=e.amount);let g,x,v,y,_,b=!1;m&&(g=m.getSpacedPoints(a),b=!0,c=!1,x=m.computeFrenetFrames(a,!1),v=new Yn,y=new Yn,_=new Yn),c||(d=0,h=0,u=0,p=0);const w=t.extractPoints(o);let M=w.shape;const S=w.holes;if(!dp.isClockWise(M)){M=M.reverse();for(let t=0,e=S.length;t<e;t++){const e=S[t];dp.isClockWise(e)&&(S[t]=e.reverse())}}const T=dp.triangulateShape(M,S),E=M;for(let e=0,n=S.length;e<n;e++){const t=S[e];M=M.concat(t)}function A(t,e,n){return e||console.error("THREE.ExtrudeGeometry: vec does not exist"),e.clone().multiplyScalar(n).add(t)}const L=M.length,R=T.length;function C(t,e,n){let r,i,s;const o=t.x-e.x,a=t.y-e.y,l=n.x-t.x,c=n.y-t.y,h=o*o+a*a,u=o*c-a*l;if(Math.abs(u)>Number.EPSILON){const u=Math.sqrt(h),p=Math.sqrt(l*l+c*c),d=e.x-a/u,m=e.y+o/u,f=((n.x-c/p-d)*c-(n.y+l/p-m)*l)/(o*c-a*l),g=(r=d+o*f-t.x)*r+(i=m+a*f-t.y)*i;if(g<=2)return new On(r,i);s=Math.sqrt(g/2)}else{let t=!1;o>Number.EPSILON?l>Number.EPSILON&&(t=!0):o<-Number.EPSILON?l<-Number.EPSILON&&(t=!0):Math.sign(a)===Math.sign(c)&&(t=!0),t?(r=-a,i=o,s=Math.sqrt(h)):(r=o,i=a,s=Math.sqrt(h/2))}return new On(r/s,i/s)}const P=[];for(let e=0,n=E.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),P[e]=C(E[e],E[r],E[i]);const D=[];let I,B=P.concat();for(let e=0,n=S.length;e<n;e++){const t=S[e];I=[];for(let e=0,n=t.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),I[e]=C(t[e],t[r],t[i]);D.push(I),B=B.concat(I)}for(let e=0;e<d;e++){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,-n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);O(i.x,i.y,-n)}}}const N=u+p;for(let e=0;e<L;e++){const t=c?A(M[e],B[e],N):M[e];b?(y.copy(x.normals[0]).multiplyScalar(t.x),v.copy(x.binormals[0]).multiplyScalar(t.y),_.copy(g[0]).add(y).add(v),O(_.x,_.y,_.z)):O(t.x,t.y,0)}for(let e=1;e<=a;e++)for(let t=0;t<L;t++){const n=c?A(M[t],B[t],N):M[t];b?(y.copy(x.normals[e]).multiplyScalar(n.x),v.copy(x.binormals[e]).multiplyScalar(n.y),_.copy(g[e]).add(y).add(v),O(_.x,_.y,_.z)):O(n.x,n.y,l/a*e)}for(let e=d-1;e>=0;e--){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,l+n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);b?O(i.x,i.y+g[a-1].y,g[a-1].x+n):O(i.x,i.y,l+n)}}}function F(t,e){let n=t.length;for(;--n>=0;){const r=n;let i=n-1;i<0&&(i=t.length-1);for(let t=0,n=a+2*d;t<n;t++){const n=L*t,s=L*(t+1);G(e+r+n,e+i+n,e+i+s,e+r+s)}}}function O(t,e,n){s.push(t),s.push(e),s.push(n)}function z(t,e,i){H(t),H(e),H(i);const s=r.length/3,o=f.generateTopUV(n,r,s-3,s-2,s-1);U(o[0]),U(o[1]),U(o[2])}function G(t,e,i,s){H(t),H(e),H(s),H(e),H(i),H(s);const o=r.length/3,a=f.generateSideWallUV(n,r,o-6,o-3,o-2,o-1);U(a[0]),U(a[1]),U(a[3]),U(a[1]),U(a[2]),U(a[3])}function H(t){r.push(s[3*t+0]),r.push(s[3*t+1]),r.push(s[3*t+2])}function U(t){i.push(t.x),i.push(t.y)}!function(){const t=r.length/3;if(c){let t=0,e=L*t;for(let n=0;n<R;n++){const t=T[n];z(t[2]+e,t[1]+e,t[0]+e)}e=L*(t=a+2*d);for(let n=0;n<R;n++){const t=T[n];z(t[0]+e,t[1]+e,t[2]+e)}}else{for(let t=0;t<R;t++){const e=T[t];z(e[2],e[1],e[0])}for(let t=0;t<R;t++){const e=T[t];z(e[0]+L*a,e[1]+L*a,e[2]+L*a)}}n.addGroup(t,r.length/3-t,0)}(),function(){const t=r.length/3;let e=0;F(E,e),e+=E.length;for(let n=0,r=S.length;n<r;n++){const t=S[n];F(t,e),e+=t.length}n.addGroup(t,r.length/3-t,1)}()}this.setAttribute("position",new Ci(r,3)),this.setAttribute("uv",new Ci(i,2)),this.computeVertexNormals()}toJSON(){const t=ki.prototype.toJSON.call(this);return vp(this.parameters.shapes,this.parameters.options,t)}}exports.ExtrudeGeometry=exports.ExtrudeBufferGeometry=gp;const xp={generateTopUV:function(t,e,n,r,i){const s=e[3*n],o=e[3*n+1],a=e[3*r],l=e[3*r+1],c=e[3*i],h=e[3*i+1];return[new On(s,o),new On(a,l),new On(c,h)]},generateSideWallUV:function(t,e,n,r,i,s){const o=e[3*n],a=e[3*n+1],l=e[3*n+2],c=e[3*r],h=e[3*r+1],u=e[3*r+2],p=e[3*i],d=e[3*i+1],m=e[3*i+2],f=e[3*s],g=e[3*s+1],x=e[3*s+2];return Math.abs(a-h)<.01?[new On(o,1-l),new On(c,1-u),new On(p,1-m),new On(f,1-x)]:[new On(a,1-l),new On(h,1-u),new On(d,1-m),new On(g,1-x)]}};function vp(t,e,n){if(n.shapes=[],Array.isArray(t))for(let r=0,i=t.length;r<i;r++){const e=t[r];n.shapes.push(e.uuid)}else n.shapes.push(t.uuid);return void 0!==e.extrudePath&&(n.options.extrudePath=e.extrudePath.toJSON()),n}class yp extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2;super([-1,n,0,1,n,0,-1,-n,0,1,-n,0,0,-1,n,0,1,n,0,-1,-n,0,1,-n,n,0,-1,n,0,1,-n,0,-1,-n,0,1],[0,11,5,0,5,1,0,1,7,0,7,10,0,10,11,1,5,9,5,11,4,11,10,2,10,7,6,7,1,8,3,9,4,3,4,2,3,2,6,3,6,8,3,8,9,4,9,5,2,4,11,6,2,10,8,6,7,9,8,1],t,e),this.type="IcosahedronGeometry",this.parameters={radius:t,detail:e}}}exports.IcosahedronGeometry=exports.IcosahedronBufferGeometry=yp;class _p extends ki{constructor(t,e=12,n=0,r=2*Math.PI){super(),this.type="LatheGeometry",this.parameters={points:t,segments:e,phiStart:n,phiLength:r},e=Math.floor(e),r=Fn.clamp(r,0,2*Math.PI);const i=[],s=[],o=[],a=1/e,l=new Yn,c=new On;for(let h=0;h<=e;h++){const i=n+h*a*r,u=Math.sin(i),p=Math.cos(i);for(let n=0;n<=t.length-1;n++)l.x=t[n].x*u,l.y=t[n].y,l.z=t[n].x*p,s.push(l.x,l.y,l.z),c.x=h/e,c.y=n/(t.length-1),o.push(c.x,c.y)}for(let h=0;h<e;h++)for(let e=0;e<t.length-1;e++){const n=e+h*t.length,r=n,s=n+t.length,o=n+t.length+1,a=n+1;i.push(r,s,a),i.push(s,o,a)}if(this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2)),this.computeVertexNormals(),r===2*Math.PI){const n=this.attributes.normal.array,r=new Yn,i=new Yn,s=new Yn,o=e*t.length*3;for(let e=0,a=0;e<t.length;e++,a+=3)r.x=n[a+0],r.y=n[a+1],r.z=n[a+2],i.x=n[o+a+0],i.y=n[o+a+1],i.z=n[o+a+2],s.addVectors(r,i).normalize(),n[a+0]=n[o+a+0]=s.x,n[a+1]=n[o+a+1]=s.y,n[a+2]=n[o+a+2]=s.z}}}exports.LatheGeometry=exports.LatheBufferGeometry=_p;class bp extends Lu{constructor(t=1,e=0){super([1,0,0,-1,0,0,0,1,0,0,-1,0,0,0,1,0,0,-1],[0,2,4,0,4,3,0,3,5,0,5,2,1,2,5,1,5,3,1,3,4,1,4,2],t,e),this.type="OctahedronGeometry",this.parameters={radius:t,detail:e}}}function wp(t,e,n){ki.call(this),this.type="ParametricGeometry",this.parameters={func:t,slices:e,stacks:n};const r=[],i=[],s=[],o=[],a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=new Yn;t.length<3&&console.error("THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.");const p=e+1;for(let d=0;d<=n;d++){const r=d/n;for(let n=0;n<=e;n++){const p=n/e;t(p,r,l),i.push(l.x,l.y,l.z),p-1e-5>=0?(t(p-1e-5,r,c),h.subVectors(l,c)):(t(p+1e-5,r,c),h.subVectors(c,l)),r-1e-5>=0?(t(p,r-1e-5,c),u.subVectors(l,c)):(t(p,r+1e-5,c),u.subVectors(c,l)),a.crossVectors(h,u).normalize(),s.push(a.x,a.y,a.z),o.push(p,r)}}for(let d=0;d<n;d++)for(let t=0;t<e;t++){const e=d*p+t,n=d*p+t+1,i=(d+1)*p+t+1,s=(d+1)*p+t;r.push(e,n,s),r.push(n,i,s)}this.setIndex(r),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2))}exports.OctahedronGeometry=exports.OctahedronBufferGeometry=bp,wp.prototype=Object.create(ki.prototype),wp.prototype.constructor=wp;class Mp extends ki{constructor(t=.5,e=1,n=8,r=1,i=0,s=2*Math.PI){super(),this.type="RingGeometry",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:n,phiSegments:r,thetaStart:i,thetaLength:s},n=Math.max(3,n);const o=[],a=[],l=[],c=[];let h=t;const u=(e-t)/(r=Math.max(1,r)),p=new Yn,d=new On;for(let m=0;m<=r;m++){for(let t=0;t<=n;t++){const r=i+t/n*s;p.x=h*Math.cos(r),p.y=h*Math.sin(r),a.push(p.x,p.y,p.z),l.push(0,0,1),d.x=(p.x/e+1)/2,d.y=(p.y/e+1)/2,c.push(d.x,d.y)}h+=u}for(let m=0;m<r;m++){const t=m*(n+1);for(let e=0;e<n;e++){const r=e+t,i=r,s=r+n+1,a=r+n+2,l=r+1;o.push(i,s,l),o.push(s,a,l)}}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.RingGeometry=exports.RingBufferGeometry=Mp;class Sp extends ki{constructor(t,e=12){super(),this.type="ShapeGeometry",this.parameters={shapes:t,curveSegments:e};const n=[],r=[],i=[],s=[];let o=0,a=0;if(!1===Array.isArray(t))l(t);else for(let c=0;c<t.length;c++)l(t[c]),this.addGroup(o,a,c),o+=a,a=0;function l(t){const o=r.length/3,l=t.extractPoints(e);let c=l.shape;const h=l.holes;!1===dp.isClockWise(c)&&(c=c.reverse());for(let e=0,n=h.length;e<n;e++){const t=h[e];!0===dp.isClockWise(t)&&(h[e]=t.reverse())}const u=dp.triangulateShape(c,h);for(let e=0,n=h.length;e<n;e++){const t=h[e];c=c.concat(t)}for(let e=0,n=c.length;e<n;e++){const t=c[e];r.push(t.x,t.y,0),i.push(0,0,1),s.push(t.x,t.y)}for(let e=0,r=u.length;e<r;e++){const t=u[e],r=t[0]+o,i=t[1]+o,s=t[2]+o;n.push(r,i,s),a+=3}}this.setIndex(n),this.setAttribute("position",new Ci(r,3)),this.setAttribute("normal",new Ci(i,3)),this.setAttribute("uv",new Ci(s,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return Tp(this.parameters.shapes,t)}}function Tp(t,e){if(e.shapes=[],Array.isArray(t))for(let n=0,r=t.length;n<r;n++){const r=t[n];e.shapes.push(r.uuid)}else e.shapes.push(t.uuid);return e}exports.ShapeGeometry=exports.ShapeBufferGeometry=Sp;class Ep extends ki{constructor(t=1,e=8,n=6,r=0,i=2*Math.PI,s=0,o=Math.PI){super(),this.type="SphereGeometry",this.parameters={radius:t,widthSegments:e,heightSegments:n,phiStart:r,phiLength:i,thetaStart:s,thetaLength:o},e=Math.max(3,Math.floor(e)),n=Math.max(2,Math.floor(n));const a=Math.min(s+o,Math.PI);let l=0;const c=[],h=new Yn,u=new Yn,p=[],d=[],m=[],f=[];for(let g=0;g<=n;g++){const p=[],x=g/n;let v=0;0==g&&0==s?v=.5/e:g==n&&a==Math.PI&&(v=-.5/e);for(let n=0;n<=e;n++){const a=n/e;h.x=-t*Math.cos(r+a*i)*Math.sin(s+x*o),h.y=t*Math.cos(s+x*o),h.z=t*Math.sin(r+a*i)*Math.sin(s+x*o),d.push(h.x,h.y,h.z),u.copy(h).normalize(),m.push(u.x,u.y,u.z),f.push(a+v,1-x),p.push(l++)}c.push(p)}for(let g=0;g<n;g++)for(let t=0;t<e;t++){const e=c[g][t+1],r=c[g][t],i=c[g+1][t],o=c[g+1][t+1];(0!==g||s>0)&&p.push(e,r,o),(g!==n-1||a<Math.PI)&&p.push(r,i,o)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.SphereGeometry=exports.SphereBufferGeometry=Ep;class Ap extends Lu{constructor(t=1,e=0){super([1,1,1,-1,-1,1,-1,1,-1,1,-1,-1],[2,1,0,0,3,2,1,3,0,2,3,1],t,e),this.type="TetrahedronGeometry",this.parameters={radius:t,detail:e}}}exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=Ap;class Lp extends gp{constructor(t,e={}){const n=e.font;if(!n||!n.isFont)return console.error("THREE.TextGeometry: font parameter is not an instance of THREE.Font."),new ki;const r=n.generateShapes(t,e.size);e.depth=void 0!==e.height?e.height:50,void 0===e.bevelThickness&&(e.bevelThickness=10),void 0===e.bevelSize&&(e.bevelSize=8),void 0===e.bevelEnabled&&(e.bevelEnabled=!1),super(r,e),this.type="TextGeometry"}}exports.TextGeometry=exports.TextBufferGeometry=Lp;class Rp extends ki{constructor(t=1,e=.4,n=8,r=6,i=2*Math.PI){super(),this.type="TorusGeometry",this.parameters={radius:t,tube:e,radialSegments:n,tubularSegments:r,arc:i},n=Math.floor(n),r=Math.floor(r);const s=[],o=[],a=[],l=[],c=new Yn,h=new Yn,u=new Yn;for(let p=0;p<=n;p++)for(let s=0;s<=r;s++){const d=s/r*i,m=p/n*Math.PI*2;h.x=(t+e*Math.cos(m))*Math.cos(d),h.y=(t+e*Math.cos(m))*Math.sin(d),h.z=e*Math.sin(m),o.push(h.x,h.y,h.z),c.x=t*Math.cos(d),c.y=t*Math.sin(d),u.subVectors(h,c).normalize(),a.push(u.x,u.y,u.z),l.push(s/r),l.push(p/n)}for(let p=1;p<=n;p++)for(let t=1;t<=r;t++){const e=(r+1)*p+t-1,n=(r+1)*(p-1)+t-1,i=(r+1)*(p-1)+t,o=(r+1)*p+t;s.push(e,n,o),s.push(n,i,o)}this.setIndex(s),this.setAttribute("position",new Ci(o,3)),this.setAttribute("normal",new Ci(a,3)),this.setAttribute("uv",new Ci(l,2))}}exports.TorusGeometry=exports.TorusBufferGeometry=Rp;class Cp extends ki{constructor(t=1,e=.4,n=64,r=8,i=2,s=3){super(),this.type="TorusKnotGeometry",this.parameters={radius:t,tube:e,tubularSegments:n,radialSegments:r,p:i,q:s},n=Math.floor(n),r=Math.floor(r);const o=[],a=[],l=[],c=[],h=new Yn,u=new Yn,p=new Yn,d=new Yn,m=new Yn,f=new Yn,g=new Yn;for(let v=0;v<=n;++v){const o=v/n*i*Math.PI*2;x(o,i,s,t,p),x(o+.01,i,s,t,d),f.subVectors(d,p),g.addVectors(d,p),m.crossVectors(f,g),g.crossVectors(m,f),m.normalize(),g.normalize();for(let t=0;t<=r;++t){const i=t/r*Math.PI*2,s=-e*Math.cos(i),o=e*Math.sin(i);h.x=p.x+(s*g.x+o*m.x),h.y=p.y+(s*g.y+o*m.y),h.z=p.z+(s*g.z+o*m.z),a.push(h.x,h.y,h.z),u.subVectors(h,p).normalize(),l.push(u.x,u.y,u.z),c.push(v/n),c.push(t/r)}}for(let v=1;v<=n;v++)for(let t=1;t<=r;t++){const e=(r+1)*(v-1)+(t-1),n=(r+1)*v+(t-1),i=(r+1)*v+t,s=(r+1)*(v-1)+t;o.push(e,n,s),o.push(n,i,s)}function x(t,e,n,r,i){const s=Math.cos(t),o=Math.sin(t),a=n/e*t,l=Math.cos(a);i.x=r*(2+l)*.5*s,i.y=r*(2+l)*o*.5,i.z=r*Math.sin(a)*.5}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=Cp;class Pp extends ki{constructor(t,e=64,n=1,r=8,i=!1){super(),this.type="TubeGeometry",this.parameters={path:t,tubularSegments:e,radius:n,radialSegments:r,closed:i};const s=t.computeFrenetFrames(e,i);this.tangents=s.tangents,this.normals=s.normals,this.binormals=s.binormals;const o=new Yn,a=new Yn,l=new On;let c=new Yn;const h=[],u=[],p=[],d=[];function m(i){c=t.getPointAt(i/e,c);const l=s.normals[i],p=s.binormals[i];for(let t=0;t<=r;t++){const e=t/r*Math.PI*2,i=Math.sin(e),s=-Math.cos(e);a.x=s*l.x+i*p.x,a.y=s*l.y+i*p.y,a.z=s*l.z+i*p.z,a.normalize(),u.push(a.x,a.y,a.z),o.x=c.x+n*a.x,o.y=c.y+n*a.y,o.z=c.z+n*a.z,h.push(o.x,o.y,o.z)}}!function(){for(let t=0;t<e;t++)m(t);m(!1===i?e:0),function(){for(let t=0;t<=e;t++)for(let n=0;n<=r;n++)l.x=t/e,l.y=n/r,p.push(l.x,l.y)}(),function(){for(let t=1;t<=e;t++)for(let e=1;e<=r;e++){const n=(r+1)*(t-1)+(e-1),i=(r+1)*t+(e-1),s=(r+1)*t+e,o=(r+1)*(t-1)+e;d.push(n,i,o),d.push(i,s,o)}}()}(),this.setIndex(d),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return t.path=this.parameters.path.toJSON(),t}}exports.TubeGeometry=exports.TubeBufferGeometry=Pp;class Dp extends ki{constructor(t){if(super(),this.type="WireframeGeometry",!0===t.isGeometry)return void console.error("THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const e=[],n=[0,0],r={},i=new Yn;if(null!==t.index){const s=t.attributes.position,o=t.index;let a=t.groups;0===a.length&&(a=[{start:0,count:o.count,materialIndex:0}]);for(let t=0,e=a.length;t<e;++t){const e=a[t],i=e.start;for(let t=i,s=i+e.count;t<s;t+=3)for(let e=0;e<3;e++){const i=o.getX(t+e),s=o.getX(t+(e+1)%3);n[0]=Math.min(i,s),n[1]=Math.max(i,s);const a=n[0]+","+n[1];void 0===r[a]&&(r[a]={index1:n[0],index2:n[1]})}}for(const t in r){const n=r[t];i.fromBufferAttribute(s,n.index1),e.push(i.x,i.y,i.z),i.fromBufferAttribute(s,n.index2),e.push(i.x,i.y,i.z)}}else{const n=t.attributes.position;for(let t=0,r=n.count/3;t<r;t++)for(let s=0;s<3;s++){const r=3*t+s;i.fromBufferAttribute(n,r),e.push(i.x,i.y,i.z);const o=3*t+(s+1)%3;i.fromBufferAttribute(n,o),e.push(i.x,i.y,i.z)}}this.setAttribute("position",new Ci(e,3))}}exports.WireframeGeometry=Dp;var Ip=Object.freeze({__proto__:null,BoxGeometry:cs,BoxBufferGeometry:cs,CircleGeometry:Tu,CircleBufferGeometry:Tu,ConeGeometry:Au,ConeBufferGeometry:Au,CylinderGeometry:Eu,CylinderBufferGeometry:Eu,DodecahedronGeometry:Ru,DodecahedronBufferGeometry:Ru,EdgesGeometry:Bu,ExtrudeGeometry:gp,ExtrudeBufferGeometry:gp,IcosahedronGeometry:yp,IcosahedronBufferGeometry:yp,LatheGeometry:_p,LatheBufferGeometry:_p,OctahedronGeometry:bp,OctahedronBufferGeometry:bp,ParametricGeometry:wp,ParametricBufferGeometry:wp,PlaneGeometry:Rs,PlaneBufferGeometry:Rs,PolyhedronGeometry:Lu,PolyhedronBufferGeometry:Lu,RingGeometry:Mp,RingBufferGeometry:Mp,ShapeGeometry:Sp,ShapeBufferGeometry:Sp,SphereGeometry:Ep,SphereBufferGeometry:Ep,TetrahedronGeometry:Ap,TetrahedronBufferGeometry:Ap,TextGeometry:Lp,TextBufferGeometry:Lp,TorusGeometry:Rp,TorusBufferGeometry:Rp,TorusKnotGeometry:Cp,TorusKnotBufferGeometry:Cp,TubeGeometry:Pp,TubeBufferGeometry:Pp,WireframeGeometry:Dp});class Bp extends hi{constructor(t){super(),this.type="ShadowMaterial",this.color=new xi(0),this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this}}exports.ShadowMaterial=Bp,Bp.prototype.isShadowMaterial=!0;class Np extends fs{constructor(t){super(t),this.type="RawShaderMaterial"}}function Fp(t){hi.call(this),this.defines={STANDARD:""},this.type="MeshStandardMaterial",this.color=new xi(16777215),this.roughness=1,this.metalness=0,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapIntensity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.vertexTangents=!1,this.setValues(t)}function Op(t){Fp.call(this),this.defines={STANDARD:"",PHYSICAL:""},this.type="MeshPhysicalMaterial",this.clearcoat=0,this.clearcoatMap=null,this.clearcoatRoughness=0,this.clearcoatRoughnessMap=null,this.clearcoatNormalScale=new On(1,1),this.clearcoatNormalMap=null,this.reflectivity=.5,Object.defineProperty(this,"ior",{get:function(){return(1+.4*this.reflectivity)/(1-.4*this.reflectivity)},set:function(t){this.reflectivity=Fn.clamp(2.5*(t-1)/(t+1),0,1)}}),this.sheen=null,this.transmission=0,this.transmissionMap=null,this.setValues(t)}exports.RawShaderMaterial=Np,Np.prototype.isRawShaderMaterial=!0,Fp.prototype=Object.create(hi.prototype),Fp.prototype.constructor=Fp,Fp.prototype.isMeshStandardMaterial=!0,Fp.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.defines={STANDARD:""},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapIntensity=t.envMapIntensity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this.vertexTangents=t.vertexTangents,this},Op.prototype=Object.create(Fp.prototype),Op.prototype.constructor=Op,Op.prototype.isMeshPhysicalMaterial=!0,Op.prototype.copy=function(t){return Fp.prototype.copy.call(this,t),this.defines={STANDARD:"",PHYSICAL:""},this.clearcoat=t.clearcoat,this.clearcoatMap=t.clearcoatMap,this.clearcoatRoughness=t.clearcoatRoughness,this.clearcoatRoughnessMap=t.clearcoatRoughnessMap,this.clearcoatNormalMap=t.clearcoatNormalMap,this.clearcoatNormalScale.copy(t.clearcoatNormalScale),this.reflectivity=t.reflectivity,t.sheen?this.sheen=(this.sheen||new xi).copy(t.sheen):this.sheen=null,this.transmission=t.transmission,this.transmissionMap=t.transmissionMap,this};class zp extends hi{constructor(t){super(),this.type="MeshPhongMaterial",this.color=new xi(16777215),this.specular=new xi(1118481),this.shininess=30,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.specular.copy(t.specular),this.shininess=t.shininess,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshPhongMaterial=zp,zp.prototype.isMeshPhongMaterial=!0;class Gp extends hi{constructor(t){super(),this.defines={TOON:""},this.type="MeshToonMaterial",this.color=new xi(16777215),this.map=null,this.gradientMap=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.gradientMap=t.gradientMap,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshToonMaterial=Gp,Gp.prototype.isMeshToonMaterial=!0;class Hp extends hi{constructor(t){super(),this.type="MeshNormalMaterial",this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshNormalMaterial=Hp,Hp.prototype.isMeshNormalMaterial=!0;class Up extends hi{constructor(t){super(),this.type="MeshLambertMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshLambertMaterial=Up,Up.prototype.isMeshLambertMaterial=!0;class kp extends hi{constructor(t){super(),this.defines={MATCAP:""},this.type="MeshMatcapMaterial",this.color=new xi(16777215),this.matcap=null,this.map=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.defines={MATCAP:""},this.color.copy(t.color),this.matcap=t.matcap,this.map=t.map,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshMatcapMaterial=kp,kp.prototype.isMeshMatcapMaterial=!0;class Vp extends ru{constructor(t){super(),this.type="LineDashedMaterial",this.scale=1,this.dashSize=3,this.gapSize=1,this.setValues(t)}copy(t){return super.copy(t),this.scale=t.scale,this.dashSize=t.dashSize,this.gapSize=t.gapSize,this}}exports.LineDashedMaterial=Vp,Vp.prototype.isLineDashedMaterial=!0;var Wp=Object.freeze({__proto__:null,ShadowMaterial:Bp,SpriteMaterial:Mh,RawShaderMaterial:Np,ShaderMaterial:fs,PointsMaterial:mu,MeshPhysicalMaterial:Op,MeshStandardMaterial:Fp,MeshPhongMaterial:zp,MeshToonMaterial:Gp,MeshNormalMaterial:Hp,MeshLambertMaterial:Up,MeshDepthMaterial:eh,MeshDistanceMaterial:nh,MeshBasicMaterial:vi,MeshMatcapMaterial:kp,LineDashedMaterial:Vp,LineBasicMaterial:ru,Material:hi});const jp={arraySlice:function(t,e,n){return jp.isTypedArray(t)?new t.constructor(t.subarray(e,void 0!==n?n:t.length)):t.slice(e,n)},convertArray:function(t,e,n){return!t||!n&&t.constructor===e?t:"number"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)},isTypedArray:function(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)},getKeyframeOrder:function(t){const e=t.length,n=new Array(e);for(let r=0;r!==e;++r)n[r]=r;return n.sort(function(e,n){return t[e]-t[n]}),n},sortedArray:function(t,e,n){const r=t.length,i=new t.constructor(r);for(let s=0,o=0;o!==r;++s){const r=n[s]*e;for(let n=0;n!==e;++n)i[o++]=t[r+n]}return i},flattenJSON:function(t,e,n,r){let i=1,s=t[0];for(;void 0!==s&&void 0===s[r];)s=t[i++];if(void 0===s)return;let o=s[r];if(void 0!==o)if(Array.isArray(o))do{void 0!==(o=s[r])&&(e.push(s.time),n.push.apply(n,o)),s=t[i++]}while(void 0!==s);else if(void 0!==o.toArray)do{void 0!==(o=s[r])&&(e.push(s.time),o.toArray(n,n.length)),s=t[i++]}while(void 0!==s);else do{void 0!==(o=s[r])&&(e.push(s.time),n.push(o)),s=t[i++]}while(void 0!==s)},subclip:function(t,e,n,r,i=30){const s=t.clone();s.name=e;const o=[];for(let l=0;l<s.tracks.length;++l){const t=s.tracks[l],e=t.getValueSize(),a=[],c=[];for(let s=0;s<t.times.length;++s){const o=t.times[s]*i;if(!(o<n||o>=r)){a.push(t.times[s]);for(let n=0;n<e;++n)c.push(t.values[s*e+n])}}0!==a.length&&(t.times=jp.convertArray(a,t.times.constructor),t.values=jp.convertArray(c,t.values.constructor),o.push(t))}s.tracks=o;let a=1/0;for(let l=0;l<s.tracks.length;++l)a>s.tracks[l].times[0]&&(a=s.tracks[l].times[0]);for(let l=0;l<s.tracks.length;++l)s.tracks[l].shift(-1*a);return s.resetDuration(),s},makeClipAdditive:function(t,e=0,n=t,r=30){r<=0&&(r=30);const i=n.tracks.length,s=e/r;for(let o=0;o<i;++o){const e=n.tracks[o],r=e.ValueTypeName;if("bool"===r||"string"===r)continue;const i=t.tracks.find(function(t){return t.name===e.name&&t.ValueTypeName===r});if(void 0===i)continue;let a=0;const l=e.getValueSize();e.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(a=l/3);let c=0;const h=i.getValueSize();i.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(c=h/3);const u=e.times.length-1;let p;if(s<=e.times[0]){const t=a,n=l-a;p=jp.arraySlice(e.values,t,n)}else if(s>=e.times[u]){const t=u*l+a,n=t+l-a;p=jp.arraySlice(e.values,t,n)}else{const t=e.createInterpolant(),n=a,r=l-a;t.evaluate(s),p=jp.arraySlice(t.resultBuffer,n,r)}if("quaternion"===r){(new Xn).fromArray(p).normalize().conjugate().toArray(p)}const d=i.times.length;for(let t=0;t<d;++t){const e=t*h+c;if("quaternion"===r)Xn.multiplyQuaternionsFlat(i.values,e,p,0,i.values,e);else{const t=h-2*c;for(let n=0;n<t;++n)i.values[e+n]-=p[n]}}}return t.blendMode=Ve,t}};function qp(t,e,n,r){this.parameterPositions=t,this._cachedIndex=0,this.resultBuffer=void 0!==r?r:new e.constructor(n),this.sampleValues=e,this.valueSize=n}function Xp(t,e,n,r){qp.call(this,t,e,n,r),this._weightPrev=-0,this._offsetPrev=-0,this._weightNext=-0,this._offsetNext=-0}function Yp(t,e,n,r){qp.call(this,t,e,n,r)}function Zp(t,e,n,r){qp.call(this,t,e,n,r)}exports.AnimationUtils=jp,Object.assign(qp.prototype,{evaluate:function(t){const e=this.parameterPositions;let n=this._cachedIndex,r=e[n],i=e[n-1];t:{e:{let s;n:{r:if(!(t<r)){for(let s=n+2;;){if(void 0===r){if(t<i)break r;return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,t,i)}if(n===s)break;if(i=r,t<(r=e[++n]))break e}s=e.length;break n}if(t>=i)break t;{const o=e[1];t<o&&(n=2,i=o);for(let s=n-2;;){if(void 0===i)return this._cachedIndex=0,this.beforeStart_(0,t,r);if(n===s)break;if(r=i,t>=(i=e[--n-1]))break e}s=n,n=0}}for(;n<s;){const r=n+s>>>1;t<e[r]?s=r:n=r+1}if(r=e[n],void 0===(i=e[n-1]))return this._cachedIndex=0,this.beforeStart_(0,t,r);if(void 0===r)return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,i,t)}this._cachedIndex=n,this.intervalChanged_(n,i,r)}return this.interpolate_(n,i,t,r)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||this.DefaultSettings_},copySampleValue_:function(t){const e=this.resultBuffer,n=this.sampleValues,r=this.valueSize,i=t*r;for(let s=0;s!==r;++s)e[s]=n[i+s];return e},interpolate_:function(){throw new Error("call to abstract method")},intervalChanged_:function(){}}),Object.assign(qp.prototype,{beforeStart_:qp.prototype.copySampleValue_,afterEnd_:qp.prototype.copySampleValue_}),Xp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Xp,DefaultSettings_:{endingStart:Ge,endingEnd:Ge},intervalChanged_:function(t,e,n){const r=this.parameterPositions;let i=t-2,s=t+1,o=r[i],a=r[s];if(void 0===o)switch(this.getSettings_().endingStart){case He:i=t,o=2*e-n;break;case Ue:o=e+r[i=r.length-2]-r[i+1];break;default:i=t,o=n}if(void 0===a)switch(this.getSettings_().endingEnd){case He:s=t,a=2*n-e;break;case Ue:s=1,a=n+r[1]-r[0];break;default:s=t-1,a=e}const l=.5*(n-e),c=this.valueSize;this._weightPrev=l/(e-o),this._weightNext=l/(a-n),this._offsetPrev=i*c,this._offsetNext=s*c},interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=this._offsetPrev,h=this._offsetNext,u=this._weightPrev,p=this._weightNext,d=(n-e)/(r-e),m=d*d,f=m*d,g=-u*f+2*u*m-u*d,x=(1+u)*f+(-1.5-2*u)*m+(-.5+u)*d+1,v=(-1-p)*f+(1.5+p)*m+.5*d,y=p*f-p*m;for(let _=0;_!==o;++_)i[_]=g*s[c+_]+x*s[l+_]+v*s[a+_]+y*s[h+_];return i}}),Yp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Yp,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=(n-e)/(r-e),h=1-c;for(let u=0;u!==o;++u)i[u]=s[l+u]*h+s[a+u]*c;return i}}),Zp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Zp,interpolate_:function(t){return this.copySampleValue_(t-1)}});class Jp{constructor(t,e,n,r){if(void 0===t)throw new Error("THREE.KeyframeTrack: track name is undefined");if(void 0===e||0===e.length)throw new Error("THREE.KeyframeTrack: no keyframes in track named "+t);this.name=t,this.times=jp.convertArray(e,this.TimeBufferType),this.values=jp.convertArray(n,this.ValueBufferType),this.setInterpolation(r||this.DefaultInterpolation)}static toJSON(t){const e=t.constructor;let n;if(e.toJSON!==this.toJSON)n=e.toJSON(t);else{n={name:t.name,times:jp.convertArray(t.times,Array),values:jp.convertArray(t.values,Array)};const e=t.getInterpolation();e!==t.DefaultInterpolation&&(n.interpolation=e)}return n.type=t.ValueTypeName,n}InterpolantFactoryMethodDiscrete(t){return new Zp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodLinear(t){return new Yp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodSmooth(t){return new Xp(this.times,this.values,this.getValueSize(),t)}setInterpolation(t){let e;switch(t){case Fe:e=this.InterpolantFactoryMethodDiscrete;break;case Oe:e=this.InterpolantFactoryMethodLinear;break;case ze:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){const e="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(e);this.setInterpolation(this.DefaultInterpolation)}return console.warn("THREE.KeyframeTrack:",e),this}return this.createInterpolant=e,this}getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return Fe;case this.InterpolantFactoryMethodLinear:return Oe;case this.InterpolantFactoryMethodSmooth:return ze}}getValueSize(){return this.values.length/this.times.length}shift(t){if(0!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]+=t}return this}scale(t){if(1!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]*=t}return this}trim(t,e){const n=this.times,r=n.length;let i=0,s=r-1;for(;i!==r&&n[i]<t;)++i;for(;-1!==s&&n[s]>e;)--s;if(++s,0!==i||s!==r){i>=s&&(i=(s=Math.max(s,1))-1);const t=this.getValueSize();this.times=jp.arraySlice(n,i,s),this.values=jp.arraySlice(this.values,i*t,s*t)}return this}validate(){let t=!0;const e=this.getValueSize();e-Math.floor(e)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),t=!1);const n=this.times,r=this.values,i=n.length;0===i&&(console.error("THREE.KeyframeTrack: Track is empty.",this),t=!1);let s=null;for(let o=0;o!==i;o++){const e=n[o];if("number"==typeof e&&isNaN(e)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,o,e),t=!1;break}if(null!==s&&s>e){console.error("THREE.KeyframeTrack: Out of order keys.",this,o,e,s),t=!1;break}s=e}if(void 0!==r&&jp.isTypedArray(r))for(let o=0,a=r.length;o!==a;++o){const e=r[o];if(isNaN(e)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,o,e),t=!1;break}}return t}optimize(){const t=jp.arraySlice(this.times),e=jp.arraySlice(this.values),n=this.getValueSize(),r=this.getInterpolation()===ze,i=t.length-1;let s=1;for(let o=1;o<i;++o){let i=!1;const a=t[o];if(a!==t[o+1]&&(1!==o||a!==t[0]))if(r)i=!0;else{const t=o*n,r=t-n,s=t+n;for(let o=0;o!==n;++o){const n=e[t+o];if(n!==e[r+o]||n!==e[s+o]){i=!0;break}}}if(i){if(o!==s){t[s]=t[o];const r=o*n,i=s*n;for(let t=0;t!==n;++t)e[i+t]=e[r+t]}++s}}if(i>0){t[s]=t[i];for(let t=i*n,r=s*n,o=0;o!==n;++o)e[r+o]=e[t+o];++s}return s!==t.length?(this.times=jp.arraySlice(t,0,s),this.values=jp.arraySlice(e,0,s*n)):(this.times=t,this.values=e),this}clone(){const t=jp.arraySlice(this.times,0),e=jp.arraySlice(this.values,0),n=new(0,this.constructor)(this.name,t,e);return n.createInterpolant=this.createInterpolant,n}}exports.KeyframeTrack=Jp,Jp.prototype.TimeBufferType=Float32Array,Jp.prototype.ValueBufferType=Float32Array,Jp.prototype.DefaultInterpolation=Oe;class Qp extends Jp{}exports.BooleanKeyframeTrack=Qp,Qp.prototype.ValueTypeName="bool",Qp.prototype.ValueBufferType=Array,Qp.prototype.DefaultInterpolation=Fe,Qp.prototype.InterpolantFactoryMethodLinear=void 0,Qp.prototype.InterpolantFactoryMethodSmooth=void 0;class Kp extends Jp{}exports.ColorKeyframeTrack=Kp,Kp.prototype.ValueTypeName="color";class $p extends Jp{}function td(t,e,n,r){qp.call(this,t,e,n,r)}exports.NumberKeyframeTrack=$p,$p.prototype.ValueTypeName="number",td.prototype=Object.assign(Object.create(qp.prototype),{constructor:td,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=(n-e)/(r-e);let l=t*o;for(let c=l+o;l!==c;l+=4)Xn.slerpFlat(i,0,s,l-o,s,l,a);return i}});class ed extends Jp{InterpolantFactoryMethodLinear(t){return new td(this.times,this.values,this.getValueSize(),t)}}exports.QuaternionKeyframeTrack=ed,ed.prototype.ValueTypeName="quaternion",ed.prototype.DefaultInterpolation=Oe,ed.prototype.InterpolantFactoryMethodSmooth=void 0;class nd extends Jp{}exports.StringKeyframeTrack=nd,nd.prototype.ValueTypeName="string",nd.prototype.ValueBufferType=Array,nd.prototype.DefaultInterpolation=Fe,nd.prototype.InterpolantFactoryMethodLinear=void 0,nd.prototype.InterpolantFactoryMethodSmooth=void 0;class rd extends Jp{}exports.VectorKeyframeTrack=rd,rd.prototype.ValueTypeName="vector";class id{constructor(t,e=-1,n,r=ke){this.name=t,this.tracks=n,this.duration=e,this.blendMode=r,this.uuid=Fn.generateUUID(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],n=t.tracks,r=1/(t.fps||1);for(let s=0,o=n.length;s!==o;++s)e.push(od(n[s]).scale(r));const i=new this(t.name,t.duration,e,t.blendMode);return i.uuid=t.uuid,i}static toJSON(t){const e=[],n=t.tracks,r={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let i=0,s=n.length;i!==s;++i)e.push(Jp.toJSON(n[i]));return r}static CreateFromMorphTargetSequence(t,e,n,r){const i=e.length,s=[];for(let o=0;o<i;o++){let t=[],a=[];t.push((o+i-1)%i,o,(o+1)%i),a.push(0,1,0);const l=jp.getKeyframeOrder(t);t=jp.sortedArray(t,1,l),a=jp.sortedArray(a,1,l),r||0!==t[0]||(t.push(i),a.push(a[0])),s.push(new $p(".morphTargetInfluences["+e[o].name+"]",t,a).scale(1/n))}return new this(t,-1,s)}static findByName(t,e){let n=t;if(!Array.isArray(t)){const e=t;n=e.geometry&&e.geometry.animations||e.animations}for(let r=0;r<n.length;r++)if(n[r].name===e)return n[r];return null}static CreateClipsFromMorphTargetSequences(t,e,n){const r={},i=/^([\w-]*?)([\d]+)$/;for(let o=0,a=t.length;o<a;o++){const e=t[o],n=e.name.match(i);if(n&&n.length>1){const t=n[1];let i=r[t];i||(r[t]=i=[]),i.push(e)}}const s=[];for(const o in r)s.push(this.CreateFromMorphTargetSequence(o,r[o],e,n));return s}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const n=function(t,e,n,r,i){if(0!==n.length){const s=[],o=[];jp.flattenJSON(n,s,o,r),0!==s.length&&i.push(new t(e,s,o))}},r=[],i=t.name||"default",s=t.fps||30,o=t.blendMode;let a=t.length||-1;const l=t.hierarchy||[];for(let c=0;c<l.length;c++){const t=l[c].keys;if(t&&0!==t.length)if(t[0].morphTargets){const e={};let n;for(n=0;n<t.length;n++)if(t[n].morphTargets)for(let r=0;r<t[n].morphTargets.length;r++)e[t[n].morphTargets[r]]=-1;for(const i in e){const e=[],s=[];for(let r=0;r!==t[n].morphTargets.length;++r){const r=t[n];e.push(r.time),s.push(r.morphTarget===i?1:0)}r.push(new $p(".morphTargetInfluence["+i+"]",e,s))}a=e.length*(s||1)}else{const i=".bones["+e[c].name+"]";n(rd,i+".position",t,"pos",r),n(ed,i+".quaternion",t,"rot",r),n(rd,i+".scale",t,"scl",r)}}return 0===r.length?null:new this(i,a,r,o)}resetDuration(){let t=0;for(let e=0,n=this.tracks.length;e!==n;++e){const n=this.tracks[e];t=Math.max(t,n.times[n.times.length-1])}return this.duration=t,this}trim(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this}validate(){let t=!0;for(let e=0;e<this.tracks.length;e++)t=t&&this.tracks[e].validate();return t}optimize(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}clone(){const t=[];for(let e=0;e<this.tracks.length;e++)t.push(this.tracks[e].clone());return new this.constructor(this.name,this.duration,t,this.blendMode)}toJSON(){return this.constructor.toJSON(this)}}function sd(t){switch(t.toLowerCase()){case"scalar":case"double":case"float":case"number":case"integer":return $p;case"vector":case"vector2":case"vector3":case"vector4":return rd;case"color":return Kp;case"quaternion":return ed;case"bool":case"boolean":return Qp;case"string":return nd}throw new Error("THREE.KeyframeTrack: Unsupported typeName: "+t)}function od(t){if(void 0===t.type)throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");const e=sd(t.type);if(void 0===t.times){const e=[],n=[];jp.flattenJSON(t.keys,e,n,"value"),t.times=e,t.values=n}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)}exports.AnimationClip=id;const ad={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}};function ld(t,e,n){const r=this;let i=!1,s=0,o=0,a=void 0;const l=[];this.onStart=void 0,this.onLoad=t,this.onProgress=e,this.onError=n,this.itemStart=function(t){o++,!1===i&&void 0!==r.onStart&&r.onStart(t,s,o),i=!0},this.itemEnd=function(t){s++,void 0!==r.onProgress&&r.onProgress(t,s,o),s===o&&(i=!1,void 0!==r.onLoad&&r.onLoad())},this.itemError=function(t){void 0!==r.onError&&r.onError(t)},this.resolveURL=function(t){return a?a(t):t},this.setURLModifier=function(t){return a=t,this},this.addHandler=function(t,e){return l.push(t,e),this},this.removeHandler=function(t){const e=l.indexOf(t);return-1!==e&&l.splice(e,2),this},this.getHandler=function(t){for(let e=0,n=l.length;e<n;e+=2){const n=l[e],r=l[e+1];if(n.global&&(n.lastIndex=0),n.test(t))return r}return null}}exports.Cache=ad;const cd=new ld;function hd(t){this.manager=void 0!==t?t:cd,this.crossOrigin="anonymous",this.withCredentials=!1,this.path="",this.resourcePath="",this.requestHeader={}}exports.DefaultLoadingManager=cd,Object.assign(hd.prototype,{load:function(){},loadAsync:function(t,e){const n=this;return new Promise(function(r,i){n.load(t,r,e,i)})},parse:function(){},setCrossOrigin:function(t){return this.crossOrigin=t,this},setWithCredentials:function(t){return this.withCredentials=t,this},setPath:function(t){return this.path=t,this},setResourcePath:function(t){return this.resourcePath=t,this},setRequestHeader:function(t){return this.requestHeader=t,this}});const ud={};function pd(t){hd.call(this,t)}pd.prototype=Object.assign(Object.create(hd.prototype),{constructor:pd,load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;if(void 0!==ud[t])return void ud[t].push({onLoad:e,onProgress:n,onError:r});const o=t.match(/^data:(.*?)(;base64)?,(.*)$/);let a;if(o){const n=o[1],s=!!o[2];let a=o[3];a=decodeURIComponent(a),s&&(a=atob(a));try{let s;const o=(this.responseType||"").toLowerCase();switch(o){case"arraybuffer":case"blob":const t=new Uint8Array(a.length);for(let n=0;n<a.length;n++)t[n]=a.charCodeAt(n);s="blob"===o?new Blob([t.buffer],{type:n}):t.buffer;break;case"document":const e=new DOMParser;s=e.parseFromString(a,n);break;case"json":s=JSON.parse(a);break;default:s=a}setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0)}catch(l){setTimeout(function(){r&&r(l),i.manager.itemError(t),i.manager.itemEnd(t)},0)}}else{ud[t]=[],ud[t].push({onLoad:e,onProgress:n,onError:r}),(a=new XMLHttpRequest).open("GET",t,!0),a.addEventListener("load",function(e){const n=this.response,r=ud[t];if(delete ud[t],200===this.status||0===this.status){0===this.status&&console.warn("THREE.FileLoader: HTTP Status 0 received."),ad.add(t,n);for(let t=0,e=r.length;t<e;t++){const e=r[t];e.onLoad&&e.onLoad(n)}i.manager.itemEnd(t)}else{for(let t=0,n=r.length;t<n;t++){const n=r[t];n.onError&&n.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)}},!1),a.addEventListener("progress",function(e){const n=ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onProgress&&r.onProgress(e)}},!1),a.addEventListener("error",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),a.addEventListener("abort",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),void 0!==this.responseType&&(a.responseType=this.responseType),void 0!==this.withCredentials&&(a.withCredentials=this.withCredentials),a.overrideMimeType&&a.overrideMimeType(void 0!==this.mimeType?this.mimeType:"text/plain");for(const t in this.requestHeader)a.setRequestHeader(t,this.requestHeader[t]);a.send(null)}return i.manager.itemStart(t),a},setResponseType:function(t){return this.responseType=t,this},setMimeType:function(t){return this.mimeType=t,this}});class dd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=[];for(let n=0;n<t.length;n++){const r=id.parse(t[n]);e.push(r)}return e}}function md(t){hd.call(this,t)}exports.AnimationLoader=dd,md.prototype=Object.assign(Object.create(hd.prototype),{constructor:md,load:function(t,e,n,r){const i=this,s=[],o=new wu,a=new pd(this.manager);a.setPath(this.path),a.setResponseType("arraybuffer"),a.setRequestHeader(this.requestHeader),a.setWithCredentials(i.withCredentials);let l=0;function c(c){a.load(t[c],function(t){const n=i.parse(t,!0);s[c]={width:n.width,height:n.height,format:n.format,mipmaps:n.mipmaps},6===(l+=1)&&(1===n.mipmapCount&&(o.minFilter=gt),o.image=s,o.format=n.format,o.needsUpdate=!0,e&&e(o))},n,r)}if(Array.isArray(t))for(let h=0,u=t.length;h<u;++h)c(h);else a.load(t,function(t){const n=i.parse(t,!0);if(n.isCubemap){const t=n.mipmaps.length/n.mipmapCount;for(let e=0;e<t;e++){s[e]={mipmaps:[]};for(let t=0;t<n.mipmapCount;t++)s[e].mipmaps.push(n.mipmaps[e*n.mipmapCount+t]),s[e].format=n.format,s[e].width=n.width,s[e].height=n.height}o.image=s}else o.image.width=n.width,o.image.height=n.height,o.mipmaps=n.mipmaps;1===n.mipmapCount&&(o.minFilter=gt),o.format=n.format,o.needsUpdate=!0,e&&e(o)},n,r);return o}});class fd extends hd{constructor(t){super(t)}load(t,e,n,r){void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o=document.createElementNS("http://www.w3.org/1999/xhtml","img");function a(){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),ad.add(t,this),e&&e(this),i.manager.itemEnd(t)}function l(e){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}return o.addEventListener("load",a,!1),o.addEventListener("error",l,!1),"data:"!==t.substr(0,5)&&void 0!==this.crossOrigin&&(o.crossOrigin=this.crossOrigin),i.manager.itemStart(t),o.src=t,o}}exports.ImageLoader=fd;class gd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=new bs,s=new fd(this.manager);s.setCrossOrigin(this.crossOrigin),s.setPath(this.path);let o=0;function a(n){s.load(t[n],function(t){i.images[n]=t,6===++o&&(i.needsUpdate=!0,e&&e(i))},void 0,r)}for(let l=0;l<t.length;++l)a(l);return i}}function xd(t){hd.call(this,t)}function vd(t){hd.call(this,t)}function yd(){this.type="Curve",this.arcLengthDivisions=200}exports.CubeTextureLoader=gd,xd.prototype=Object.assign(Object.create(hd.prototype),{constructor:xd,load:function(t,e,n,r){const i=this,s=new Ms,o=new pd(this.manager);return o.setResponseType("arraybuffer"),o.setRequestHeader(this.requestHeader),o.setPath(this.path),o.setWithCredentials(i.withCredentials),o.load(t,function(t){const n=i.parse(t);n&&(void 0!==n.image?s.image=n.image:void 0!==n.data&&(s.image.width=n.width,s.image.height=n.height,s.image.data=n.data),s.wrapS=void 0!==n.wrapS?n.wrapS:ct,s.wrapT=void 0!==n.wrapT?n.wrapT:ct,s.magFilter=void 0!==n.magFilter?n.magFilter:gt,s.minFilter=void 0!==n.minFilter?n.minFilter:gt,s.anisotropy=void 0!==n.anisotropy?n.anisotropy:1,void 0!==n.encoding&&(s.encoding=n.encoding),void 0!==n.flipY&&(s.flipY=n.flipY),void 0!==n.format&&(s.format=n.format),void 0!==n.type&&(s.type=n.type),void 0!==n.mipmaps&&(s.mipmaps=n.mipmaps,s.minFilter=yt),1===n.mipmapCount&&(s.minFilter=gt),s.needsUpdate=!0,e&&e(s,n))},n,r),s}}),vd.prototype=Object.assign(Object.create(hd.prototype),{constructor:vd,load:function(t,e,n,r){const i=new kn,s=new fd(this.manager);return s.setCrossOrigin(this.crossOrigin),s.setPath(this.path),s.load(t,function(n){i.image=n;const r=t.search(/\.jpe?g($|\?)/i)>0||0===t.search(/^data\:image\/jpeg/);i.format=r?Bt:Nt,i.needsUpdate=!0,void 0!==e&&e(i)},n,r),i}}),Object.assign(yd.prototype,{getPoint:function(){return console.warn("THREE.Curve: .getPoint() not implemented."),null},getPointAt:function(t,e){const n=this.getUtoTmapping(t);return this.getPoint(n,e)},getPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return e},getSpacedPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPointAt(n/t));return e},getLength:function(){const t=this.getLengths();return t[t.length-1]},getLengths:function(t){if(void 0===t&&(t=this.arcLengthDivisions),this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;const e=[];let n,r=this.getPoint(0),i=0;e.push(0);for(let s=1;s<=t;s++)i+=(n=this.getPoint(s/t)).distanceTo(r),e.push(i),r=n;return this.cacheArcLengths=e,e},updateArcLengths:function(){this.needsUpdate=!0,this.getLengths()},getUtoTmapping:function(t,e){const n=this.getLengths();let r=0;const i=n.length;let s;s=e||t*n[i-1];let o,a=0,l=i-1;for(;a<=l;)if((o=n[r=Math.floor(a+(l-a)/2)]-s)<0)a=r+1;else{if(!(o>0)){l=r;break}l=r-1}if(n[r=l]===s)return r/(i-1);const c=n[r];return(r+(s-c)/(n[r+1]-c))/(i-1)},getTangent:function(t,e){let n=t-1e-4,r=t+1e-4;n<0&&(n=0),r>1&&(r=1);const i=this.getPoint(n),s=this.getPoint(r),o=e||(i.isVector2?new On:new Yn);return o.copy(s).sub(i).normalize(),o},getTangentAt:function(t,e){const n=this.getUtoTmapping(t);return this.getTangent(n,e)},computeFrenetFrames:function(t,e){const n=new Yn,r=[],i=[],s=[],o=new Yn,a=new wr;for(let p=0;p<=t;p++){const e=p/t;r[p]=this.getTangentAt(e,new Yn),r[p].normalize()}i[0]=new Yn,s[0]=new Yn;let l=Number.MAX_VALUE;const c=Math.abs(r[0].x),h=Math.abs(r[0].y),u=Math.abs(r[0].z);c<=l&&(l=c,n.set(1,0,0)),h<=l&&(l=h,n.set(0,1,0)),u<=l&&n.set(0,0,1),o.crossVectors(r[0],n).normalize(),i[0].crossVectors(r[0],o),s[0].crossVectors(r[0],i[0]);for(let p=1;p<=t;p++){if(i[p]=i[p-1].clone(),s[p]=s[p-1].clone(),o.crossVectors(r[p-1],r[p]),o.length()>Number.EPSILON){o.normalize();const t=Math.acos(Fn.clamp(r[p-1].dot(r[p]),-1,1));i[p].applyMatrix4(a.makeRotationAxis(o,t))}s[p].crossVectors(r[p],i[p])}if(!0===e){let e=Math.acos(Fn.clamp(i[0].dot(i[t]),-1,1));e/=t,r[0].dot(o.crossVectors(i[0],i[t]))>0&&(e=-e);for(let n=1;n<=t;n++)i[n].applyMatrix4(a.makeRotationAxis(r[n],e*n)),s[n].crossVectors(r[n],i[n])}return{tangents:r,normals:i,binormals:s}},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this},toJSON:function(){const t={metadata:{version:4.5,type:"Curve",generator:"Curve.toJSON"}};return t.arcLengthDivisions=this.arcLengthDivisions,t.type=this.type,t},fromJSON:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}});class _d extends yd{constructor(t=0,e=0,n=1,r=1,i=0,s=2*Math.PI,o=!1,a=0){super(),this.type="EllipseCurve",this.aX=t,this.aY=e,this.xRadius=n,this.yRadius=r,this.aStartAngle=i,this.aEndAngle=s,this.aClockwise=o,this.aRotation=a}getPoint(t,e){const n=e||new On,r=2*Math.PI;let i=this.aEndAngle-this.aStartAngle;const s=Math.abs(i)<Number.EPSILON;for(;i<0;)i+=r;for(;i>r;)i-=r;i<Number.EPSILON&&(i=s?0:r),!0!==this.aClockwise||s||(i===r?i=-r:i-=r);const o=this.aStartAngle+t*i;let a=this.aX+this.xRadius*Math.cos(o),l=this.aY+this.yRadius*Math.sin(o);if(0!==this.aRotation){const t=Math.cos(this.aRotation),e=Math.sin(this.aRotation),n=a-this.aX,r=l-this.aY;a=n*t-r*e+this.aX,l=n*e+r*t+this.aY}return n.set(a,l)}copy(t){return super.copy(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}toJSON(){const t=super.toJSON();return t.aX=this.aX,t.aY=this.aY,t.xRadius=this.xRadius,t.yRadius=this.yRadius,t.aStartAngle=this.aStartAngle,t.aEndAngle=this.aEndAngle,t.aClockwise=this.aClockwise,t.aRotation=this.aRotation,t}fromJSON(t){return super.fromJSON(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}}exports.EllipseCurve=_d,_d.prototype.isEllipseCurve=!0;class bd extends _d{constructor(t,e,n,r,i,s){super(t,e,n,n,r,i,s),this.type="ArcCurve"}}function wd(){let t=0,e=0,n=0,r=0;function i(i,s,o,a){t=i,e=o,n=-3*i+3*s-2*o-a,r=2*i-2*s+o+a}return{initCatmullRom:function(t,e,n,r,s){i(e,n,s*(n-t),s*(r-e))},initNonuniformCatmullRom:function(t,e,n,r,s,o,a){let l=(e-t)/s-(n-t)/(s+o)+(n-e)/o,c=(n-e)/o-(r-e)/(o+a)+(r-n)/a;i(e,n,l*=o,c*=o)},calc:function(i){const s=i*i;return t+e*i+n*s+r*(s*i)}}}exports.ArcCurve=bd,bd.prototype.isArcCurve=!0;const Md=new Yn,Sd=new wd,Td=new wd,Ed=new wd;class Ad extends yd{constructor(t=[],e=!1,n="centripetal",r=.5){super(),this.type="CatmullRomCurve3",this.points=t,this.closed=e,this.curveType=n,this.tension=r}getPoint(t,e=new Yn){const n=e,r=this.points,i=r.length,s=(i-(this.closed?0:1))*t;let o,a,l=Math.floor(s),c=s-l;this.closed?l+=l>0?0:(Math.floor(Math.abs(l)/i)+1)*i:0===c&&l===i-1&&(l=i-2,c=1),this.closed||l>0?o=r[(l-1)%i]:(Md.subVectors(r[0],r[1]).add(r[0]),o=Md);const h=r[l%i],u=r[(l+1)%i];if(this.closed||l+2<i?a=r[(l+2)%i]:(Md.subVectors(r[i-1],r[i-2]).add(r[i-1]),a=Md),"centripetal"===this.curveType||"chordal"===this.curveType){const t="chordal"===this.curveType?.5:.25;let e=Math.pow(o.distanceToSquared(h),t),n=Math.pow(h.distanceToSquared(u),t),r=Math.pow(u.distanceToSquared(a),t);n<1e-4&&(n=1),e<1e-4&&(e=n),r<1e-4&&(r=n),Sd.initNonuniformCatmullRom(o.x,h.x,u.x,a.x,e,n,r),Td.initNonuniformCatmullRom(o.y,h.y,u.y,a.y,e,n,r),Ed.initNonuniformCatmullRom(o.z,h.z,u.z,a.z,e,n,r)}else"catmullrom"===this.curveType&&(Sd.initCatmullRom(o.x,h.x,u.x,a.x,this.tension),Td.initCatmullRom(o.y,h.y,u.y,a.y,this.tension),Ed.initCatmullRom(o.z,h.z,u.z,a.z,this.tension));return n.set(Sd.calc(c),Td.calc(c),Ed.calc(c)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t.closed=this.closed,t.curveType=this.curveType,t.tension=this.tension,t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new Yn).fromArray(n))}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}}function Ld(t,e,n,r,i){const s=.5*(r-e),o=.5*(i-n),a=t*t;return(2*n-2*r+s+o)*(t*a)+(-3*n+3*r-2*s-o)*a+s*t+n}function Rd(t,e){const n=1-t;return n*n*e}function Cd(t,e){return 2*(1-t)*t*e}function Pd(t,e){return t*t*e}function Dd(t,e,n,r){return Rd(t,e)+Cd(t,n)+Pd(t,r)}function Id(t,e){const n=1-t;return n*n*n*e}function Bd(t,e){const n=1-t;return 3*n*n*t*e}function Nd(t,e){return 3*(1-t)*t*t*e}function Fd(t,e){return t*t*t*e}function Od(t,e,n,r,i){return Id(t,e)+Bd(t,n)+Nd(t,r)+Fd(t,i)}exports.CatmullRomCurve3=Ad,Ad.prototype.isCatmullRomCurve3=!0;class zd extends yd{constructor(t=new On,e=new On,n=new On,r=new On){super(),this.type="CubicBezierCurve",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve=zd,zd.prototype.isCubicBezierCurve=!0;class Gd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn,r=new Yn){super(),this.type="CubicBezierCurve3",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y),Od(t,r.z,i.z,s.z,o.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve3=Gd,Gd.prototype.isCubicBezierCurve3=!0;class Hd extends yd{constructor(t=new On,e=new On){super(),this.type="LineCurve",this.v1=t,this.v2=e}getPoint(t,e=new On){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e){const n=e||new On;return n.copy(this.v2).sub(this.v1).normalize(),n}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve=Hd,Hd.prototype.isLineCurve=!0;class Ud extends yd{constructor(t=new Yn,e=new Yn){super(),this.type="LineCurve3",this.isLineCurve3=!0,this.v1=t,this.v2=e}getPoint(t,e=new Yn){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve3=Ud;class kd extends yd{constructor(t=new On,e=new On,n=new On){super(),this.type="QuadraticBezierCurve",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve=kd,kd.prototype.isQuadraticBezierCurve=!0;class Vd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn){super(),this.type="QuadraticBezierCurve3",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y),Dd(t,r.z,i.z,s.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve3=Vd,Vd.prototype.isQuadraticBezierCurve3=!0;class Wd extends yd{constructor(t=[]){super(),this.type="SplineCurve",this.points=t}getPoint(t,e=new On){const n=e,r=this.points,i=(r.length-1)*t,s=Math.floor(i),o=i-s,a=r[0===s?s:s-1],l=r[s],c=r[s>r.length-2?r.length-1:s+1],h=r[s>r.length-3?r.length-1:s+2];return n.set(Ld(o,a.x,l.x,c.x,h.x),Ld(o,a.y,l.y,c.y,h.y)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new On).fromArray(n))}return this}}exports.SplineCurve=Wd,Wd.prototype.isSplineCurve=!0;var jd=Object.freeze({__proto__:null,ArcCurve:bd,CatmullRomCurve3:Ad,CubicBezierCurve:zd,CubicBezierCurve3:Gd,EllipseCurve:_d,LineCurve:Hd,LineCurve3:Ud,QuadraticBezierCurve:kd,QuadraticBezierCurve3:Vd,SplineCurve:Wd});class qd extends yd{constructor(){super(),this.type="CurvePath",this.curves=[],this.autoClose=!1}add(t){this.curves.push(t)}closePath(){const t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);t.equals(e)||this.curves.push(new Hd(e,t))}getPoint(t){const e=t*this.getLength(),n=this.getCurveLengths();let r=0;for(;r<n.length;){if(n[r]>=e){const t=n[r]-e,i=this.curves[r],s=i.getLength(),o=0===s?0:1-t/s;return i.getPointAt(o)}r++}return null}getLength(){const t=this.getCurveLengths();return t[t.length-1]}updateArcLengths(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()}getCurveLengths(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;const t=[];let e=0;for(let n=0,r=this.curves.length;n<r;n++)e+=this.curves[n].getLength(),t.push(e);return this.cacheLengths=t,t}getSpacedPoints(t=40){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return this.autoClose&&e.push(e[0]),e}getPoints(t=12){const e=[];let n;for(let r=0,i=this.curves;r<i.length;r++){const s=i[r],o=s&&s.isEllipseCurve?2*t:s&&(s.isLineCurve||s.isLineCurve3)?1:s&&s.isSplineCurve?t*s.points.length:t,a=s.getPoints(o);for(let t=0;t<a.length;t++){const r=a[t];n&&n.equals(r)||(e.push(r),n=r)}}return this.autoClose&&e.length>1&&!e[e.length-1].equals(e[0])&&e.push(e[0]),e}copy(t){super.copy(t),this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push(n.clone())}return this.autoClose=t.autoClose,this}toJSON(){const t=super.toJSON();t.autoClose=this.autoClose,t.curves=[];for(let e=0,n=this.curves.length;e<n;e++){const n=this.curves[e];t.curves.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.autoClose=t.autoClose,this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push((new jd[n.type]).fromJSON(n))}return this}}exports.CurvePath=qd;class Xd extends qd{constructor(t){super(),this.type="Path",this.currentPoint=new On,t&&this.setFromPoints(t)}setFromPoints(t){this.moveTo(t[0].x,t[0].y);for(let e=1,n=t.length;e<n;e++)this.lineTo(t[e].x,t[e].y);return this}moveTo(t,e){return this.currentPoint.set(t,e),this}lineTo(t,e){const n=new Hd(this.currentPoint.clone(),new On(t,e));return this.curves.push(n),this.currentPoint.set(t,e),this}quadraticCurveTo(t,e,n,r){const i=new kd(this.currentPoint.clone(),new On(t,e),new On(n,r));return this.curves.push(i),this.currentPoint.set(n,r),this}bezierCurveTo(t,e,n,r,i,s){const o=new zd(this.currentPoint.clone(),new On(t,e),new On(n,r),new On(i,s));return this.curves.push(o),this.currentPoint.set(i,s),this}splineThru(t){const e=[this.currentPoint.clone()].concat(t),n=new Wd(e);return this.curves.push(n),this.currentPoint.copy(t[t.length-1]),this}arc(t,e,n,r,i,s){const o=this.currentPoint.x,a=this.currentPoint.y;return this.absarc(t+o,e+a,n,r,i,s),this}absarc(t,e,n,r,i,s){return this.absellipse(t,e,n,n,r,i,s),this}ellipse(t,e,n,r,i,s,o,a){const l=this.currentPoint.x,c=this.currentPoint.y;return this.absellipse(t+l,e+c,n,r,i,s,o,a),this}absellipse(t,e,n,r,i,s,o,a){const l=new _d(t,e,n,r,i,s,o,a);if(this.curves.length>0){const t=l.getPoint(0);t.equals(this.currentPoint)||this.lineTo(t.x,t.y)}this.curves.push(l);const c=l.getPoint(1);return this.currentPoint.copy(c),this}copy(t){return super.copy(t),this.currentPoint.copy(t.currentPoint),this}toJSON(){const t=super.toJSON();return t.currentPoint=this.currentPoint.toArray(),t}fromJSON(t){return super.fromJSON(t),this.currentPoint.fromArray(t.currentPoint),this}}exports.Path=Xd;class Yd extends Xd{constructor(t){super(t),this.uuid=Fn.generateUUID(),this.type="Shape",this.holes=[]}getPointsHoles(t){const e=[];for(let n=0,r=this.holes.length;n<r;n++)e[n]=this.holes[n].getPoints(t);return e}extractPoints(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}}copy(t){super.copy(t),this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.uuid=this.uuid,t.holes=[];for(let e=0,n=this.holes.length;e<n;e++){const n=this.holes[e];t.holes.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.uuid=t.uuid,this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push((new Xd).fromJSON(n))}return this}}exports.Shape=Yd;class Zd extends Xr{constructor(t,e=1){super(),this.type="Light",this.color=new xi(t),this.intensity=e}copy(t){return super.copy(t),this.color.copy(t.color),this.intensity=t.intensity,this}toJSON(t){const e=super.toJSON(t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}exports.Light=Zd,Zd.prototype.isLight=!0;class Jd extends Zd{constructor(t,e,n){super(t,n),this.type="HemisphereLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.groundColor=new xi(e)}copy(t){return Zd.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}exports.HemisphereLight=Jd,Jd.prototype.isHemisphereLight=!0;const Qd=new wr,Kd=new Yn,$d=new Yn;class tm{constructor(t){this.camera=t,this.bias=0,this.normalBias=0,this.radius=1,this.mapSize=new On(512,512),this.map=null,this.mapPass=null,this.matrix=new wr,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new Es,this._frameExtents=new On(1,1),this._viewportCount=1,this._viewports=[new Wn(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,n=this.matrix;Kd.setFromMatrixPosition(t.matrixWorld),e.position.copy(Kd),$d.setFromMatrixPosition(t.target.matrixWorld),e.lookAt($d),e.updateMatrixWorld(),Qd.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Qd),n.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),n.multiply(e.projectionMatrix),n.multiply(e.matrixWorldInverse)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}copy(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class em extends tm{constructor(){super(new xs(50,1,.5,500)),this.focus=1}updateMatrices(t){const e=this.camera,n=2*Fn.RAD2DEG*t.angle*this.focus,r=this.mapSize.width/this.mapSize.height,i=t.distance||e.far;n===e.fov&&r===e.aspect&&i===e.far||(e.fov=n,e.aspect=r,e.far=i,e.updateProjectionMatrix()),super.updateMatrices(t)}}em.prototype.isSpotLightShadow=!0;class nm extends Zd{constructor(t,e,n=0,r=Math.PI/3,i=0,s=1){super(t,e),this.type="SpotLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.distance=n,this.angle=r,this.penumbra=i,this.decay=s,this.shadow=new em}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}copy(t){return super.copy(t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.SpotLight=nm,nm.prototype.isSpotLight=!0;const rm=new wr,im=new Yn,sm=new Yn;class om extends tm{constructor(){super(new xs(90,1,.5,500)),this._frameExtents=new On(4,2),this._viewportCount=6,this._viewports=[new Wn(2,1,1,1),new Wn(0,1,1,1),new Wn(3,1,1,1),new Wn(1,1,1,1),new Wn(3,0,1,1),new Wn(1,0,1,1)],this._cubeDirections=[new Yn(1,0,0),new Yn(-1,0,0),new Yn(0,0,1),new Yn(0,0,-1),new Yn(0,1,0),new Yn(0,-1,0)],this._cubeUps=[new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,0,1),new Yn(0,0,-1)]}updateMatrices(t,e=0){const n=this.camera,r=this.matrix;im.setFromMatrixPosition(t.matrixWorld),n.position.copy(im),sm.copy(n.position),sm.add(this._cubeDirections[e]),n.up.copy(this._cubeUps[e]),n.lookAt(sm),n.updateMatrixWorld(),r.makeTranslation(-im.x,-im.y,-im.z),rm.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),this._frustum.setFromProjectionMatrix(rm)}}om.prototype.isPointLightShadow=!0;class am extends Zd{constructor(t,e,n=0,r=1){super(t,e),this.type="PointLight",this.distance=n,this.decay=r,this.shadow=new om}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}copy(t){return super.copy(t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}exports.PointLight=am,am.prototype.isPointLight=!0;class lm extends gs{constructor(t=-1,e=1,n=1,r=-1,i=.1,s=2e3){super(),this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=n,this.bottom=r,this.near=i,this.far=s,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,n,r,i,s){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,r=(this.top+this.bottom)/2;let i=n-t,s=n+t,o=r+e,a=r-e;if(null!==this.view&&this.view.enabled){const t=(this.right-this.left)/this.view.fullWidth/this.zoom,e=(this.top-this.bottom)/this.view.fullHeight/this.zoom;s=(i+=t*this.view.offsetX)+t*this.view.width,a=(o-=e*this.view.offsetY)-e*this.view.height}this.projectionMatrix.makeOrthographic(i,s,o,a,this.near,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}exports.OrthographicCamera=lm,lm.prototype.isOrthographicCamera=!0;class cm extends tm{constructor(){super(new lm(-5,5,5,-5,.5,500))}}cm.prototype.isDirectionalLightShadow=!0;class hm extends Zd{constructor(t,e){super(t,e),this.type="DirectionalLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.shadow=new cm}copy(t){return super.copy(t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.DirectionalLight=hm,hm.prototype.isDirectionalLight=!0;class um extends Zd{constructor(t,e){super(t,e),this.type="AmbientLight"}}exports.AmbientLight=um,um.prototype.isAmbientLight=!0;class pm extends Zd{constructor(t,e,n=10,r=10){super(t,e),this.type="RectAreaLight",this.width=n,this.height=r}copy(t){return super.copy(t),this.width=t.width,this.height=t.height,this}toJSON(t){const e=super.toJSON(t);return e.object.width=this.width,e.object.height=this.height,e}}exports.RectAreaLight=pm,pm.prototype.isRectAreaLight=!0;class dm{constructor(){this.coefficients=[];for(let t=0;t<9;t++)this.coefficients.push(new Yn)}set(t){for(let e=0;e<9;e++)this.coefficients[e].copy(t[e]);return this}zero(){for(let t=0;t<9;t++)this.coefficients[t].set(0,0,0);return this}getAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.282095),e.addScaledVector(s[1],.488603*r),e.addScaledVector(s[2],.488603*i),e.addScaledVector(s[3],.488603*n),e.addScaledVector(s[4],n*r*1.092548),e.addScaledVector(s[5],r*i*1.092548),e.addScaledVector(s[6],.315392*(3*i*i-1)),e.addScaledVector(s[7],n*i*1.092548),e.addScaledVector(s[8],.546274*(n*n-r*r)),e}getIrradianceAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.886227),e.addScaledVector(s[1],1.023328*r),e.addScaledVector(s[2],1.023328*i),e.addScaledVector(s[3],1.023328*n),e.addScaledVector(s[4],.858086*n*r),e.addScaledVector(s[5],.858086*r*i),e.addScaledVector(s[6],.743125*i*i-.247708),e.addScaledVector(s[7],.858086*n*i),e.addScaledVector(s[8],.429043*(n*n-r*r)),e}add(t){for(let e=0;e<9;e++)this.coefficients[e].add(t.coefficients[e]);return this}addScaledSH(t,e){for(let n=0;n<9;n++)this.coefficients[n].addScaledVector(t.coefficients[n],e);return this}scale(t){for(let e=0;e<9;e++)this.coefficients[e].multiplyScalar(t);return this}lerp(t,e){for(let n=0;n<9;n++)this.coefficients[n].lerp(t.coefficients[n],e);return this}equals(t){for(let e=0;e<9;e++)if(!this.coefficients[e].equals(t.coefficients[e]))return!1;return!0}copy(t){return this.set(t.coefficients)}clone(){return(new this.constructor).copy(this)}fromArray(t,e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].fromArray(t,e+3*r);return this}toArray(t=[],e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].toArray(t,e+3*r);return t}static getBasisAt(t,e){const n=t.x,r=t.y,i=t.z;e[0]=.282095,e[1]=.488603*r,e[2]=.488603*i,e[3]=.488603*n,e[4]=1.092548*n*r,e[5]=1.092548*r*i,e[6]=.315392*(3*i*i-1),e[7]=1.092548*n*i,e[8]=.546274*(n*n-r*r)}}exports.SphericalHarmonics3=dm,dm.prototype.isSphericalHarmonics3=!0;class mm extends Zd{constructor(t=new dm,e=1){super(void 0,e),this.sh=t}copy(t){return super.copy(t),this.sh.copy(t.sh),this}fromJSON(t){return this.intensity=t.intensity,this.sh.fromArray(t.sh),this}toJSON(t){const e=super.toJSON(t);return e.object.sh=this.sh.toArray(),e}}exports.LightProbe=mm,mm.prototype.isLightProbe=!0;class fm extends hd{constructor(t){super(t),this.textures={}}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=this.textures;function n(t){return void 0===e[t]&&console.warn("THREE.MaterialLoader: Undefined texture",t),e[t]}const r=new Wp[t.type];if(void 0!==t.uuid&&(r.uuid=t.uuid),void 0!==t.name&&(r.name=t.name),void 0!==t.color&&void 0!==r.color&&r.color.setHex(t.color),void 0!==t.roughness&&(r.roughness=t.roughness),void 0!==t.metalness&&(r.metalness=t.metalness),void 0!==t.sheen&&(r.sheen=(new xi).setHex(t.sheen)),void 0!==t.emissive&&void 0!==r.emissive&&r.emissive.setHex(t.emissive),void 0!==t.specular&&void 0!==r.specular&&r.specular.setHex(t.specular),void 0!==t.shininess&&(r.shininess=t.shininess),void 0!==t.clearcoat&&(r.clearcoat=t.clearcoat),void 0!==t.clearcoatRoughness&&(r.clearcoatRoughness=t.clearcoatRoughness),void 0!==t.fog&&(r.fog=t.fog),void 0!==t.flatShading&&(r.flatShading=t.flatShading),void 0!==t.blending&&(r.blending=t.blending),void 0!==t.combine&&(r.combine=t.combine),void 0!==t.side&&(r.side=t.side),void 0!==t.opacity&&(r.opacity=t.opacity),void 0!==t.transparent&&(r.transparent=t.transparent),void 0!==t.alphaTest&&(r.alphaTest=t.alphaTest),void 0!==t.depthTest&&(r.depthTest=t.depthTest),void 0!==t.depthWrite&&(r.depthWrite=t.depthWrite),void 0!==t.colorWrite&&(r.colorWrite=t.colorWrite),void 0!==t.stencilWrite&&(r.stencilWrite=t.stencilWrite),void 0!==t.stencilWriteMask&&(r.stencilWriteMask=t.stencilWriteMask),void 0!==t.stencilFunc&&(r.stencilFunc=t.stencilFunc),void 0!==t.stencilRef&&(r.stencilRef=t.stencilRef),void 0!==t.stencilFuncMask&&(r.stencilFuncMask=t.stencilFuncMask),void 0!==t.stencilFail&&(r.stencilFail=t.stencilFail),void 0!==t.stencilZFail&&(r.stencilZFail=t.stencilZFail),void 0!==t.stencilZPass&&(r.stencilZPass=t.stencilZPass),void 0!==t.wireframe&&(r.wireframe=t.wireframe),void 0!==t.wireframeLinewidth&&(r.wireframeLinewidth=t.wireframeLinewidth),void 0!==t.wireframeLinecap&&(r.wireframeLinecap=t.wireframeLinecap),void 0!==t.wireframeLinejoin&&(r.wireframeLinejoin=t.wireframeLinejoin),void 0!==t.rotation&&(r.rotation=t.rotation),1!==t.linewidth&&(r.linewidth=t.linewidth),void 0!==t.dashSize&&(r.dashSize=t.dashSize),void 0!==t.gapSize&&(r.gapSize=t.gapSize),void 0!==t.scale&&(r.scale=t.scale),void 0!==t.polygonOffset&&(r.polygonOffset=t.polygonOffset),void 0!==t.polygonOffsetFactor&&(r.polygonOffsetFactor=t.polygonOffsetFactor),void 0!==t.polygonOffsetUnits&&(r.polygonOffsetUnits=t.polygonOffsetUnits),void 0!==t.skinning&&(r.skinning=t.skinning),void 0!==t.morphTargets&&(r.morphTargets=t.morphTargets),void 0!==t.morphNormals&&(r.morphNormals=t.morphNormals),void 0!==t.dithering&&(r.dithering=t.dithering),void 0!==t.vertexTangents&&(r.vertexTangents=t.vertexTangents),void 0!==t.visible&&(r.visible=t.visible),void 0!==t.toneMapped&&(r.toneMapped=t.toneMapped),void 0!==t.userData&&(r.userData=t.userData),void 0!==t.vertexColors&&("number"==typeof t.vertexColors?r.vertexColors=t.vertexColors>0:r.vertexColors=t.vertexColors),void 0!==t.uniforms)for(const i in t.uniforms){const e=t.uniforms[i];switch(r.uniforms[i]={},e.type){case"t":r.uniforms[i].value=n(e.value);break;case"c":r.uniforms[i].value=(new xi).setHex(e.value);break;case"v2":r.uniforms[i].value=(new On).fromArray(e.value);break;case"v3":r.uniforms[i].value=(new Yn).fromArray(e.value);break;case"v4":r.uniforms[i].value=(new Wn).fromArray(e.value);break;case"m3":r.uniforms[i].value=(new zn).fromArray(e.value);break;case"m4":r.uniforms[i].value=(new wr).fromArray(e.value);break;default:r.uniforms[i].value=e.value}}if(void 0!==t.defines&&(r.defines=t.defines),void 0!==t.vertexShader&&(r.vertexShader=t.vertexShader),void 0!==t.fragmentShader&&(r.fragmentShader=t.fragmentShader),void 0!==t.extensions)for(const i in t.extensions)r.extensions[i]=t.extensions[i];if(void 0!==t.shading&&(r.flatShading=1===t.shading),void 0!==t.size&&(r.size=t.size),void 0!==t.sizeAttenuation&&(r.sizeAttenuation=t.sizeAttenuation),void 0!==t.map&&(r.map=n(t.map)),void 0!==t.matcap&&(r.matcap=n(t.matcap)),void 0!==t.alphaMap&&(r.alphaMap=n(t.alphaMap)),void 0!==t.bumpMap&&(r.bumpMap=n(t.bumpMap)),void 0!==t.bumpScale&&(r.bumpScale=t.bumpScale),void 0!==t.normalMap&&(r.normalMap=n(t.normalMap)),void 0!==t.normalMapType&&(r.normalMapType=t.normalMapType),void 0!==t.normalScale){let e=t.normalScale;!1===Array.isArray(e)&&(e=[e,e]),r.normalScale=(new On).fromArray(e)}return void 0!==t.displacementMap&&(r.displacementMap=n(t.displacementMap)),void 0!==t.displacementScale&&(r.displacementScale=t.displacementScale),void 0!==t.displacementBias&&(r.displacementBias=t.displacementBias),void 0!==t.roughnessMap&&(r.roughnessMap=n(t.roughnessMap)),void 0!==t.metalnessMap&&(r.metalnessMap=n(t.metalnessMap)),void 0!==t.emissiveMap&&(r.emissiveMap=n(t.emissiveMap)),void 0!==t.emissiveIntensity&&(r.emissiveIntensity=t.emissiveIntensity),void 0!==t.specularMap&&(r.specularMap=n(t.specularMap)),void 0!==t.envMap&&(r.envMap=n(t.envMap)),void 0!==t.envMapIntensity&&(r.envMapIntensity=t.envMapIntensity),void 0!==t.reflectivity&&(r.reflectivity=t.reflectivity),void 0!==t.refractionRatio&&(r.refractionRatio=t.refractionRatio),void 0!==t.lightMap&&(r.lightMap=n(t.lightMap)),void 0!==t.lightMapIntensity&&(r.lightMapIntensity=t.lightMapIntensity),void 0!==t.aoMap&&(r.aoMap=n(t.aoMap)),void 0!==t.aoMapIntensity&&(r.aoMapIntensity=t.aoMapIntensity),void 0!==t.gradientMap&&(r.gradientMap=n(t.gradientMap)),void 0!==t.clearcoatMap&&(r.clearcoatMap=n(t.clearcoatMap)),void 0!==t.clearcoatRoughnessMap&&(r.clearcoatRoughnessMap=n(t.clearcoatRoughnessMap)),void 0!==t.clearcoatNormalMap&&(r.clearcoatNormalMap=n(t.clearcoatNormalMap)),void 0!==t.clearcoatNormalScale&&(r.clearcoatNormalScale=(new On).fromArray(t.clearcoatNormalScale)),void 0!==t.transmission&&(r.transmission=t.transmission),void 0!==t.transmissionMap&&(r.transmissionMap=n(t.transmissionMap)),r}setTextures(t){return this.textures=t,this}}exports.MaterialLoader=fm;const gm={decodeText:function(t){if("undefined"!=typeof TextDecoder)return(new TextDecoder).decode(t);let e="";for(let r=0,i=t.length;r<i;r++)e+=String.fromCharCode(t[r]);try{return decodeURIComponent(escape(e))}catch(n){return e}},extractUrlBase:function(t){const e=t.lastIndexOf("/");return-1===e?"./":t.substr(0,e+1)}};function xm(){ki.call(this),this.type="InstancedBufferGeometry",this.instanceCount=1/0}function vm(t,e,n,r){"number"==typeof n&&(r=n,n=!1,console.error("THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.")),bi.call(this,t,e,n),this.meshPerAttribute=r||1}exports.LoaderUtils=gm,xm.prototype=Object.assign(Object.create(ki.prototype),{constructor:xm,isInstancedBufferGeometry:!0,copy:function(t){return ki.prototype.copy.call(this,t),this.instanceCount=t.instanceCount,this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){const t=ki.prototype.toJSON.call(this);return t.instanceCount=this.instanceCount,t.isInstancedBufferGeometry=!0,t}}),vm.prototype=Object.assign(Object.create(bi.prototype),{constructor:vm,isInstancedBufferAttribute:!0,copy:function(t){return bi.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},toJSON:function(){const t=bi.prototype.toJSON.call(this);return t.meshPerAttribute=this.meshPerAttribute,t.isInstancedBufferAttribute=!0,t}});class ym extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e={},n={};function r(t,r){if(void 0!==e[r])return e[r];const i=t.interleavedBuffers[r],s=function(t,e){if(void 0!==n[e])return n[e];const r=t.arrayBuffers[e],i=new Uint32Array(r).buffer;return n[e]=i,i}(t,i.buffer),o=new _h(Bi(i.type,s),i.stride);return o.uuid=i.uuid,e[r]=o,o}const i=t.isInstancedBufferGeometry?new xm:new ki,s=t.data.index;if(void 0!==s){const t=Bi(s.type,s.array);i.setIndex(new bi(t,1))}const o=t.data.attributes;for(const h in o){const e=o[h];let n;if(e.isInterleavedBufferAttribute){n=new wh(r(t.data,e.data),e.itemSize,e.offset,e.normalized)}else{const t=Bi(e.type,e.array);n=new(e.isInstancedBufferAttribute?vm:bi)(t,e.itemSize,e.normalized)}void 0!==e.name&&(n.name=e.name),i.setAttribute(h,n)}const a=t.data.morphAttributes;if(a)for(const h in a){const e=a[h],n=[];for(let i=0,s=e.length;i<s;i++){const s=e[i];let o;if(s.isInterleavedBufferAttribute){o=new wh(r(t.data,s.data),s.itemSize,s.offset,s.normalized)}else{o=new bi(Bi(s.type,s.array),s.itemSize,s.normalized)}void 0!==s.name&&(o.name=s.name),n.push(o)}i.morphAttributes[h]=n}t.data.morphTargetsRelative&&(i.morphTargetsRelative=!0);const l=t.data.groups||t.data.drawcalls||t.data.offsets;if(void 0!==l)for(let h=0,u=l.length;h!==u;++h){const t=l[h];i.addGroup(t.start,t.count,t.materialIndex)}const c=t.data.boundingSphere;if(void 0!==c){const t=new Yn;void 0!==c.center&&t.fromArray(c.center),i.boundingSphere=new dr(t,c.radius)}return t.name&&(i.name=t.name),t.userData&&(i.userData=t.userData),i}}exports.BufferGeometryLoader=ym;class _m extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=""===this.path?gm.extractUrlBase(t):this.path;this.resourcePath=this.resourcePath||s;const o=new pd(this.manager);o.setPath(this.path),o.setRequestHeader(this.requestHeader),o.setWithCredentials(this.withCredentials),o.load(t,function(n){let s=null;try{s=JSON.parse(n)}catch(a){return void 0!==r&&r(a),void console.error("THREE:ObjectLoader: Can't parse "+t+".",a.message)}const o=s.metadata;void 0!==o&&void 0!==o.type&&"geometry"!==o.type.toLowerCase()?i.parse(s,e):console.error("THREE.ObjectLoader: Can't load "+t)},n,r)}parse(t,e){const n=this.parseAnimations(t.animations),r=this.parseShapes(t.shapes),i=this.parseGeometries(t.geometries,r),s=this.parseImages(t.images,function(){void 0!==e&&e(l)}),o=this.parseTextures(t.textures,s),a=this.parseMaterials(t.materials,o),l=this.parseObject(t.object,i,a,n),c=this.parseSkeletons(t.skeletons,l);if(this.bindSkeletons(l,c),void 0!==e){let t=!1;for(const e in s)if(s[e]instanceof HTMLImageElement){t=!0;break}!1===t&&e(l)}return l}parseShapes(t){const e={};if(void 0!==t)for(let n=0,r=t.length;n<r;n++){const r=(new Yd).fromJSON(t[n]);e[r.uuid]=r}return e}parseSkeletons(t,e){const n={},r={};if(e.traverse(function(t){t.isBone&&(r[t.uuid]=t)}),void 0!==t)for(let i=0,s=t.length;i<s;i++){const e=(new Qh).fromJSON(t[i],r);n[e.uuid]=e}return n}parseGeometries(t,e){const n={};let r;if(void 0!==t){const i=new ym;for(let s=0,o=t.length;s<o;s++){let o;const a=t[s];switch(a.type){case"PlaneGeometry":case"PlaneBufferGeometry":o=new Ip[a.type](a.width,a.height,a.widthSegments,a.heightSegments);break;case"BoxGeometry":case"BoxBufferGeometry":o=new Ip[a.type](a.width,a.height,a.depth,a.widthSegments,a.heightSegments,a.depthSegments);break;case"CircleGeometry":case"CircleBufferGeometry":o=new Ip[a.type](a.radius,a.segments,a.thetaStart,a.thetaLength);break;case"CylinderGeometry":case"CylinderBufferGeometry":o=new Ip[a.type](a.radiusTop,a.radiusBottom,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"ConeGeometry":case"ConeBufferGeometry":o=new Ip[a.type](a.radius,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"SphereGeometry":case"SphereBufferGeometry":o=new Ip[a.type](a.radius,a.widthSegments,a.heightSegments,a.phiStart,a.phiLength,a.thetaStart,a.thetaLength);break;case"DodecahedronGeometry":case"DodecahedronBufferGeometry":case"IcosahedronGeometry":case"IcosahedronBufferGeometry":case"OctahedronGeometry":case"OctahedronBufferGeometry":case"TetrahedronGeometry":case"TetrahedronBufferGeometry":o=new Ip[a.type](a.radius,a.detail);break;case"RingGeometry":case"RingBufferGeometry":o=new Ip[a.type](a.innerRadius,a.outerRadius,a.thetaSegments,a.phiSegments,a.thetaStart,a.thetaLength);break;case"TorusGeometry":case"TorusBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.radialSegments,a.tubularSegments,a.arc);break;case"TorusKnotGeometry":case"TorusKnotBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.tubularSegments,a.radialSegments,a.p,a.q);break;case"TubeGeometry":case"TubeBufferGeometry":o=new Ip[a.type]((new jd[a.path.type]).fromJSON(a.path),a.tubularSegments,a.radius,a.radialSegments,a.closed);break;case"LatheGeometry":case"LatheBufferGeometry":o=new Ip[a.type](a.points,a.segments,a.phiStart,a.phiLength);break;case"PolyhedronGeometry":case"PolyhedronBufferGeometry":o=new Ip[a.type](a.vertices,a.indices,a.radius,a.details);break;case"ShapeGeometry":case"ShapeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}o=new Ip[a.type](r,a.curveSegments);break;case"ExtrudeGeometry":case"ExtrudeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}const t=a.options.extrudePath;void 0!==t&&(a.options.extrudePath=(new jd[t.type]).fromJSON(t)),o=new Ip[a.type](r,a.options);break;case"BufferGeometry":case"InstancedBufferGeometry":o=i.parse(a);break;case"Geometry":console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type "'+a.type+'"');continue}o.uuid=a.uuid,void 0!==a.name&&(o.name=a.name),!0===o.isBufferGeometry&&void 0!==a.userData&&(o.userData=a.userData),n[a.uuid]=o}}return n}parseMaterials(t,e){const n={},r={};if(void 0!==t){const i=new fm;i.setTextures(e);for(let e=0,s=t.length;e<s;e++){const s=t[e];if("MultiMaterial"===s.type){const t=[];for(let e=0;e<s.materials.length;e++){const r=s.materials[e];void 0===n[r.uuid]&&(n[r.uuid]=i.parse(r)),t.push(n[r.uuid])}r[s.uuid]=t}else void 0===n[s.uuid]&&(n[s.uuid]=i.parse(s)),r[s.uuid]=n[s.uuid]}}return r}parseAnimations(t){const e={};if(void 0!==t)for(let n=0;n<t.length;n++){const r=t[n],i=id.parse(r);e[i.uuid]=i}return e}parseImages(t,e){const n=this,r={};let i;function s(t){if("string"==typeof t){const e=t;return function(t){return n.manager.itemStart(t),i.load(t,function(){n.manager.itemEnd(t)},void 0,function(){n.manager.itemError(t),n.manager.itemEnd(t)})}(/^(\/\/)|([a-z]+:(\/\/)?)/i.test(e)?e:n.resourcePath+e)}return t.data?{data:Bi(t.type,t.data),width:t.width,height:t.height}:null}if(void 0!==t&&t.length>0){const n=new ld(e);(i=new fd(n)).setCrossOrigin(this.crossOrigin);for(let e=0,i=t.length;e<i;e++){const n=t[e],i=n.url;if(Array.isArray(i)){r[n.uuid]=[];for(let t=0,e=i.length;t<e;t++){const e=s(i[t]);null!==e&&(e instanceof HTMLImageElement?r[n.uuid].push(e):r[n.uuid].push(new Ms(e.data,e.width,e.height)))}}else{const t=s(n.url);null!==t&&(r[n.uuid]=t)}}}return r}parseTextures(t,e){function n(t,e){return"number"==typeof t?t:(console.warn("THREE.ObjectLoader.parseTexture: Constant should be in numeric form.",t),e[t])}const r={};if(void 0!==t)for(let i=0,s=t.length;i<s;i++){const s=t[i];let o;void 0===s.image&&console.warn('THREE.ObjectLoader: No "image" specified for',s.uuid),void 0===e[s.image]&&console.warn("THREE.ObjectLoader: Undefined image",s.image);const a=e[s.image];Array.isArray(a)?(o=new bs(a),6===a.length&&(o.needsUpdate=!0)):(o=a&&a.data?new Ms(a.data,a.width,a.height):new kn(a),a&&(o.needsUpdate=!0)),o.uuid=s.uuid,void 0!==s.name&&(o.name=s.name),void 0!==s.mapping&&(o.mapping=n(s.mapping,bm)),void 0!==s.offset&&o.offset.fromArray(s.offset),void 0!==s.repeat&&o.repeat.fromArray(s.repeat),void 0!==s.center&&o.center.fromArray(s.center),void 0!==s.rotation&&(o.rotation=s.rotation),void 0!==s.wrap&&(o.wrapS=n(s.wrap[0],wm),o.wrapT=n(s.wrap[1],wm)),void 0!==s.format&&(o.format=s.format),void 0!==s.type&&(o.type=s.type),void 0!==s.encoding&&(o.encoding=s.encoding),void 0!==s.minFilter&&(o.minFilter=n(s.minFilter,Mm)),void 0!==s.magFilter&&(o.magFilter=n(s.magFilter,Mm)),void 0!==s.anisotropy&&(o.anisotropy=s.anisotropy),void 0!==s.flipY&&(o.flipY=s.flipY),void 0!==s.premultiplyAlpha&&(o.premultiplyAlpha=s.premultiplyAlpha),void 0!==s.unpackAlignment&&(o.unpackAlignment=s.unpackAlignment),r[s.uuid]=o}return r}parseObject(t,e,n,r){let i,s,o;function a(t){return void 0===e[t]&&console.warn("THREE.ObjectLoader: Undefined geometry",t),e[t]}function l(t){if(void 0!==t){if(Array.isArray(t)){const e=[];for(let r=0,i=t.length;r<i;r++){const i=t[r];void 0===n[i]&&console.warn("THREE.ObjectLoader: Undefined material",i),e.push(n[i])}return e}return void 0===n[t]&&console.warn("THREE.ObjectLoader: Undefined material",t),n[t]}}switch(t.type){case"Scene":i=new yh,void 0!==t.background&&Number.isInteger(t.background)&&(i.background=new xi(t.background)),void 0!==t.fog&&("Fog"===t.fog.type?i.fog=new vh(t.fog.color,t.fog.near,t.fog.far):"FogExp2"===t.fog.type&&(i.fog=new xh(t.fog.color,t.fog.density)));break;case"PerspectiveCamera":i=new xs(t.fov,t.aspect,t.near,t.far),void 0!==t.focus&&(i.focus=t.focus),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.filmGauge&&(i.filmGauge=t.filmGauge),void 0!==t.filmOffset&&(i.filmOffset=t.filmOffset),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"OrthographicCamera":i=new lm(t.left,t.right,t.top,t.bottom,t.near,t.far),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"AmbientLight":i=new um(t.color,t.intensity);break;case"DirectionalLight":i=new hm(t.color,t.intensity);break;case"PointLight":i=new am(t.color,t.intensity,t.distance,t.decay);break;case"RectAreaLight":i=new pm(t.color,t.intensity,t.width,t.height);break;case"SpotLight":i=new nm(t.color,t.intensity,t.distance,t.angle,t.penumbra,t.decay);break;case"HemisphereLight":i=new Jd(t.color,t.groundColor,t.intensity);break;case"LightProbe":i=(new mm).fromJSON(t);break;case"SkinnedMesh":i=new Xh(s=a(t.geometry),o=l(t.material)),void 0!==t.bindMode&&(i.bindMode=t.bindMode),void 0!==t.bindMatrix&&i.bindMatrix.fromArray(t.bindMatrix),void 0!==t.skeleton&&(i.skeleton=t.skeleton);break;case"Mesh":i=new os(s=a(t.geometry),o=l(t.material));break;case"InstancedMesh":s=a(t.geometry),o=l(t.material);const e=t.count,n=t.instanceMatrix;(i=new nu(s,o,e)).instanceMatrix=new bi(new Float32Array(n.array),16);break;case"LOD":i=new Uh;break;case"Line":i=new cu(a(t.geometry),l(t.material));break;case"LineLoop":i=new du(a(t.geometry),l(t.material));break;case"LineSegments":i=new pu(a(t.geometry),l(t.material));break;case"PointCloud":case"Points":i=new yu(a(t.geometry),l(t.material));break;case"Sprite":i=new Oh(l(t.material));break;case"Group":i=new hh;break;case"Bone":i=new Yh;break;default:i=new Xr}if(i.uuid=t.uuid,void 0!==t.name&&(i.name=t.name),void 0!==t.matrix?(i.matrix.fromArray(t.matrix),void 0!==t.matrixAutoUpdate&&(i.matrixAutoUpdate=t.matrixAutoUpdate),i.matrixAutoUpdate&&i.matrix.decompose(i.position,i.quaternion,i.scale)):(void 0!==t.position&&i.position.fromArray(t.position),void 0!==t.rotation&&i.rotation.fromArray(t.rotation),void 0!==t.quaternion&&i.quaternion.fromArray(t.quaternion),void 0!==t.scale&&i.scale.fromArray(t.scale)),void 0!==t.castShadow&&(i.castShadow=t.castShadow),void 0!==t.receiveShadow&&(i.receiveShadow=t.receiveShadow),t.shadow&&(void 0!==t.shadow.bias&&(i.shadow.bias=t.shadow.bias),void 0!==t.shadow.normalBias&&(i.shadow.normalBias=t.shadow.normalBias),void 0!==t.shadow.radius&&(i.shadow.radius=t.shadow.radius),void 0!==t.shadow.mapSize&&i.shadow.mapSize.fromArray(t.shadow.mapSize),void 0!==t.shadow.camera&&(i.shadow.camera=this.parseObject(t.shadow.camera))),void 0!==t.visible&&(i.visible=t.visible),void 0!==t.frustumCulled&&(i.frustumCulled=t.frustumCulled),void 0!==t.renderOrder&&(i.renderOrder=t.renderOrder),void 0!==t.userData&&(i.userData=t.userData),void 0!==t.layers&&(i.layers.mask=t.layers),void 0!==t.children){const s=t.children;for(let t=0;t<s.length;t++)i.add(this.parseObject(s[t],e,n,r))}if(void 0!==t.animations){const e=t.animations;for(let t=0;t<e.length;t++){const n=e[t];i.animations.push(r[n])}}if("LOD"===t.type){void 0!==t.autoUpdate&&(i.autoUpdate=t.autoUpdate);const e=t.levels;for(let t=0;t<e.length;t++){const n=e[t],r=i.getObjectByProperty("uuid",n.object);void 0!==r&&i.addLevel(r,n.distance)}}return i}bindSkeletons(t,e){0!==Object.keys(e).length&&t.traverse(function(t){if(!0===t.isSkinnedMesh&&void 0!==t.skeleton){const n=e[t.skeleton];void 0===n?console.warn("THREE.ObjectLoader: No skeleton found with UUID:",t.skeleton):t.bind(n,t.bindMatrix)}})}setTexturePath(t){return console.warn("THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath()."),this.setResourcePath(t)}}exports.ObjectLoader=_m;const bm={UVMapping:et,CubeReflectionMapping:nt,CubeRefractionMapping:rt,EquirectangularReflectionMapping:it,EquirectangularRefractionMapping:st,CubeUVReflectionMapping:ot,CubeUVRefractionMapping:at},wm={RepeatWrapping:lt,ClampToEdgeWrapping:ct,MirroredRepeatWrapping:ht},Mm={NearestFilter:ut,NearestMipmapNearestFilter:pt,NearestMipmapLinearFilter:mt,LinearFilter:gt,LinearMipmapNearestFilter:xt,LinearMipmapLinearFilter:yt};function Sm(t){"undefined"==typeof createImageBitmap&&console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported."),"undefined"==typeof fetch&&console.warn("THREE.ImageBitmapLoader: fetch() not supported."),hd.call(this,t),this.options={premultiplyAlpha:"none"}}Sm.prototype=Object.assign(Object.create(hd.prototype),{constructor:Sm,isImageBitmapLoader:!0,setOptions:function(t){return this.options=t,this},load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o={};o.credentials="anonymous"===this.crossOrigin?"same-origin":"include",o.headers=this.requestHeader,fetch(t,o).then(function(t){return t.blob()}).then(function(t){return createImageBitmap(t,Object.assign(i.options,{colorSpaceConversion:"none"}))}).then(function(n){ad.add(t,n),e&&e(n),i.manager.itemEnd(t)}).catch(function(e){r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}),i.manager.itemStart(t)}});class Tm{constructor(){this.type="ShapePath",this.color=new xi,this.subPaths=[],this.currentPath=null}moveTo(t,e){return this.currentPath=new Xd,this.subPaths.push(this.currentPath),this.currentPath.moveTo(t,e),this}lineTo(t,e){return this.currentPath.lineTo(t,e),this}quadraticCurveTo(t,e,n,r){return this.currentPath.quadraticCurveTo(t,e,n,r),this}bezierCurveTo(t,e,n,r,i,s){return this.currentPath.bezierCurveTo(t,e,n,r,i,s),this}splineThru(t){return this.currentPath.splineThru(t),this}toShapes(t,e){function n(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n],i=new Yd;i.curves=r.curves,e.push(i)}return e}function r(t,e){const n=e.length;let r=!1;for(let i=n-1,s=0;s<n;i=s++){let n=e[i],o=e[s],a=o.x-n.x,l=o.y-n.y;if(Math.abs(l)>Number.EPSILON){if(l<0&&(n=e[s],a=-a,o=e[i],l=-l),t.y<n.y||t.y>o.y)continue;if(t.y===n.y){if(t.x===n.x)return!0}else{const e=l*(t.x-n.x)-a*(t.y-n.y);if(0===e)return!0;if(e<0)continue;r=!r}}else{if(t.y!==n.y)continue;if(o.x<=t.x&&t.x<=n.x||n.x<=t.x&&t.x<=o.x)return!0}}return r}const i=dp.isClockWise,s=this.subPaths;if(0===s.length)return[];if(!0===e)return n(s);let o,a,l;const c=[];if(1===s.length)return a=s[0],(l=new Yd).curves=a.curves,c.push(l),c;let h=!i(s[0].getPoints());h=t?!h:h;const u=[],p=[];let d,m,f=[],g=0;p[g]=void 0,f[g]=[];for(let x=0,v=s.length;x<v;x++)o=i(d=(a=s[x]).getPoints()),(o=t?!o:o)?(!h&&p[g]&&g++,p[g]={s:new Yd,p:d},p[g].s.curves=a.curves,h&&g++,f[g]=[]):f[g].push({h:a,p:d[0]});if(!p[0])return n(s);if(p.length>1){let t=!1;const e=[];for(let n=0,r=p.length;n<r;n++)u[n]=[];for(let n=0,i=p.length;n<i;n++){const i=f[n];for(let s=0;s<i.length;s++){const o=i[s];let a=!0;for(let i=0;i<p.length;i++)r(o.p,p[i].p)&&(n!==i&&e.push({froms:n,tos:i,hole:s}),a?(a=!1,u[i].push(o)):t=!0);a&&u[n].push(o)}}e.length>0&&(t||(f=u))}for(let x=0,v=p.length;x<v;x++){l=p[x].s,c.push(l);for(let t=0,e=(m=f[x]).length;t<e;t++)l.holes.push(m[t].h)}return c}}exports.ShapePath=Tm;class Em{constructor(t){this.type="Font",this.data=t}generateShapes(t,e=100){const n=[],r=Am(t,e,this.data);for(let i=0,s=r.length;i<s;i++)Array.prototype.push.apply(n,r[i].toShapes());return n}}function Am(t,e,n){const r=Array.from(t),i=e/n.resolution,s=(n.boundingBox.yMax-n.boundingBox.yMin+n.underlineThickness)*i,o=[];let a=0,l=0;for(let c=0;c<r.length;c++){const t=r[c];if("\n"===t)a=0,l-=s;else{const e=Lm(t,i,a,l,n);a+=e.offsetX,o.push(e.path)}}return o}function Lm(t,e,n,r,i){const s=i.glyphs[t]||i.glyphs["?"];if(!s)return void console.error('THREE.Font: character "'+t+'" does not exists in font family '+i.familyName+".");const o=new Tm;let a,l,c,h,u,p,d,m;if(s.o){const t=s._cachedOutline||(s._cachedOutline=s.o.split(" "));for(let i=0,s=t.length;i<s;){switch(t[i++]){case"m":a=t[i++]*e+n,l=t[i++]*e+r,o.moveTo(a,l);break;case"l":a=t[i++]*e+n,l=t[i++]*e+r,o.lineTo(a,l);break;case"q":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,o.quadraticCurveTo(u,p,c,h);break;case"b":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,d=t[i++]*e+n,m=t[i++]*e+r,o.bezierCurveTo(u,p,d,m,c,h)}}}return{offsetX:s.ha*e,path:o}}exports.Font=Em,Em.prototype.isFont=!0;class Rm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(t){let n;try{n=JSON.parse(t)}catch(s){console.warn("THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead."),n=JSON.parse(t.substring(65,t.length-2))}const r=i.parse(n);e&&e(r)},n,r)}parse(t){return new Em(t)}}let Cm;exports.FontLoader=Rm;const Pm={getContext:function(){return void 0===Cm&&(Cm=new(window.AudioContext||window.webkitAudioContext)),Cm},setContext:function(t){Cm=t}};exports.AudioContext=Pm;class Dm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setResponseType("arraybuffer"),s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{const o=n.slice(0);Pm.getContext().decodeAudioData(o,function(t){e(t)})}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}}exports.AudioLoader=Dm;class Im extends mm{constructor(t,e,n=1){super(void 0,n);const r=(new xi).set(t),i=(new xi).set(e),s=new Yn(r.r,r.g,r.b),o=new Yn(i.r,i.g,i.b),a=Math.sqrt(Math.PI),l=a*Math.sqrt(.75);this.sh.coefficients[0].copy(s).add(o).multiplyScalar(a),this.sh.coefficients[1].copy(s).sub(o).multiplyScalar(l)}}exports.HemisphereLightProbe=Im,Im.prototype.isHemisphereLightProbe=!0;class Bm extends mm{constructor(t,e=1){super(void 0,e);const n=(new xi).set(t);this.sh.coefficients[0].set(n.r,n.g,n.b).multiplyScalar(2*Math.sqrt(Math.PI))}}exports.AmbientLightProbe=Bm,Bm.prototype.isAmbientLightProbe=!0;const Nm=new wr,Fm=new wr;class Om{constructor(){this.type="StereoCamera",this.aspect=1,this.eyeSep=.064,this.cameraL=new xs,this.cameraL.layers.enable(1),this.cameraL.matrixAutoUpdate=!1,this.cameraR=new xs,this.cameraR.layers.enable(2),this.cameraR.matrixAutoUpdate=!1,this._cache={focus:null,fov:null,aspect:null,near:null,far:null,zoom:null,eyeSep:null}}update(t){const e=this._cache;if(e.focus!==t.focus||e.fov!==t.fov||e.aspect!==t.aspect*this.aspect||e.near!==t.near||e.far!==t.far||e.zoom!==t.zoom||e.eyeSep!==this.eyeSep){e.focus=t.focus,e.fov=t.fov,e.aspect=t.aspect*this.aspect,e.near=t.near,e.far=t.far,e.zoom=t.zoom,e.eyeSep=this.eyeSep;const n=t.projectionMatrix.clone(),r=e.eyeSep/2,i=r*e.near/e.focus,s=e.near*Math.tan(Fn.DEG2RAD*e.fov*.5)/e.zoom;let o,a;Fm.elements[12]=-r,Nm.elements[12]=r,o=-s*e.aspect+i,a=s*e.aspect+i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraL.projectionMatrix.copy(n),o=-s*e.aspect-i,a=s*e.aspect-i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraR.projectionMatrix.copy(n)}this.cameraL.matrixWorld.copy(t.matrixWorld).multiply(Fm),this.cameraR.matrixWorld.copy(t.matrixWorld).multiply(Nm)}}exports.StereoCamera=Om;class zm{constructor(t){this.autoStart=void 0===t||t,this.startTime=0,this.oldTime=0,this.elapsedTime=0,this.running=!1}start(){this.startTime=Gm(),this.oldTime=this.startTime,this.elapsedTime=0,this.running=!0}stop(){this.getElapsedTime(),this.running=!1,this.autoStart=!1}getElapsedTime(){return this.getDelta(),this.elapsedTime}getDelta(){let t=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){const e=Gm();t=(e-this.oldTime)/1e3,this.oldTime=e,this.elapsedTime+=t}return t}}function Gm(){return("undefined"==typeof performance?Date:performance).now()}exports.Clock=zm;const Hm=new Yn,Um=new Xn,km=new Yn,Vm=new Yn;class Wm extends Xr{constructor(){super(),this.type="AudioListener",this.context=Pm.getContext(),this.gain=this.context.createGain(),this.gain.connect(this.context.destination),this.filter=null,this.timeDelta=0,this._clock=new zm}getInput(){return this.gain}removeFilter(){return null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null),this}getFilter(){return this.filter}setFilter(t){return null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):this.gain.disconnect(this.context.destination),this.filter=t,this.gain.connect(this.filter),this.filter.connect(this.context.destination),this}getMasterVolume(){return this.gain.gain.value}setMasterVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}updateMatrixWorld(t){super.updateMatrixWorld(t);const e=this.context.listener,n=this.up;if(this.timeDelta=this._clock.getDelta(),this.matrixWorld.decompose(Hm,Um,km),Vm.set(0,0,-1).applyQuaternion(Um),e.positionX){const t=this.context.currentTime+this.timeDelta;e.positionX.linearRampToValueAtTime(Hm.x,t),e.positionY.linearRampToValueAtTime(Hm.y,t),e.positionZ.linearRampToValueAtTime(Hm.z,t),e.forwardX.linearRampToValueAtTime(Vm.x,t),e.forwardY.linearRampToValueAtTime(Vm.y,t),e.forwardZ.linearRampToValueAtTime(Vm.z,t),e.upX.linearRampToValueAtTime(n.x,t),e.upY.linearRampToValueAtTime(n.y,t),e.upZ.linearRampToValueAtTime(n.z,t)}else e.setPosition(Hm.x,Hm.y,Hm.z),e.setOrientation(Vm.x,Vm.y,Vm.z,n.x,n.y,n.z)}}exports.AudioListener=Wm;class jm extends Xr{constructor(t){super(),this.type="Audio",this.listener=t,this.context=t.context,this.gain=this.context.createGain(),this.gain.connect(t.getInput()),this.autoplay=!1,this.buffer=null,this.detune=0,this.loop=!1,this.loopStart=0,this.loopEnd=0,this.offset=0,this.duration=void 0,this.playbackRate=1,this.isPlaying=!1,this.hasPlaybackControl=!0,this.source=null,this.sourceType="empty",this._startedAt=0,this._progress=0,this._connected=!1,this.filters=[]}getOutput(){return this.gain}setNodeSource(t){return this.hasPlaybackControl=!1,this.sourceType="audioNode",this.source=t,this.connect(),this}setMediaElementSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaNode",this.source=this.context.createMediaElementSource(t),this.connect(),this}setMediaStreamSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaStreamNode",this.source=this.context.createMediaStreamSource(t),this.connect(),this}setBuffer(t){return this.buffer=t,this.sourceType="buffer",this.autoplay&&this.play(),this}play(t=0){if(!0===this.isPlaying)return void console.warn("THREE.Audio: Audio is already playing.");if(!1===this.hasPlaybackControl)return void console.warn("THREE.Audio: this Audio has no playback control.");this._startedAt=this.context.currentTime+t;const e=this.context.createBufferSource();return e.buffer=this.buffer,e.loop=this.loop,e.loopStart=this.loopStart,e.loopEnd=this.loopEnd,e.onended=this.onEnded.bind(this),e.start(this._startedAt,this._progress+this.offset,this.duration),this.isPlaying=!0,this.source=e,this.setDetune(this.detune),this.setPlaybackRate(this.playbackRate),this.connect()}pause(){if(!1!==this.hasPlaybackControl)return!0===this.isPlaying&&(this._progress+=Math.max(this.context.currentTime-this._startedAt,0)*this.playbackRate,!0===this.loop&&(this._progress=this._progress%(this.duration||this.buffer.duration)),this.source.stop(),this.source.onended=null,this.isPlaying=!1),this;console.warn("THREE.Audio: this Audio has no playback control.")}stop(){if(!1!==this.hasPlaybackControl)return this._progress=0,this.source.stop(),this.source.onended=null,this.isPlaying=!1,this;console.warn("THREE.Audio: this Audio has no playback control.")}connect(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].connect(this.filters[t]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());return this._connected=!0,this}disconnect(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].disconnect(this.filters[t]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this._connected=!1,this}getFilters(){return this.filters}setFilters(t){return t||(t=[]),!0===this._connected?(this.disconnect(),this.filters=t.slice(),this.connect()):this.filters=t.slice(),this}setDetune(t){if(this.detune=t,void 0!==this.source.detune)return!0===this.isPlaying&&this.source.detune.setTargetAtTime(this.detune,this.context.currentTime,.01),this}getDetune(){return this.detune}getFilter(){return this.getFilters()[0]}setFilter(t){return this.setFilters(t?[t]:[])}setPlaybackRate(t){if(!1!==this.hasPlaybackControl)return this.playbackRate=t,!0===this.isPlaying&&this.source.playbackRate.setTargetAtTime(this.playbackRate,this.context.currentTime,.01),this;console.warn("THREE.Audio: this Audio has no playback control.")}getPlaybackRate(){return this.playbackRate}onEnded(){this.isPlaying=!1}getLoop(){return!1===this.hasPlaybackControl?(console.warn("THREE.Audio: this Audio has no playback control."),!1):this.loop}setLoop(t){if(!1!==this.hasPlaybackControl)return this.loop=t,!0===this.isPlaying&&(this.source.loop=this.loop),this;console.warn("THREE.Audio: this Audio has no playback control.")}setLoopStart(t){return this.loopStart=t,this}setLoopEnd(t){return this.loopEnd=t,this}getVolume(){return this.gain.gain.value}setVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}}exports.Audio=jm;const qm=new Yn,Xm=new Xn,Ym=new Yn,Zm=new Yn;class Jm extends jm{constructor(t){super(t),this.panner=this.context.createPanner(),this.panner.panningModel="HRTF",this.panner.connect(this.gain)}getOutput(){return this.panner}getRefDistance(){return this.panner.refDistance}setRefDistance(t){return this.panner.refDistance=t,this}getRolloffFactor(){return this.panner.rolloffFactor}setRolloffFactor(t){return this.panner.rolloffFactor=t,this}getDistanceModel(){return this.panner.distanceModel}setDistanceModel(t){return this.panner.distanceModel=t,this}getMaxDistance(){return this.panner.maxDistance}setMaxDistance(t){return this.panner.maxDistance=t,this}setDirectionalCone(t,e,n){return this.panner.coneInnerAngle=t,this.panner.coneOuterAngle=e,this.panner.coneOuterGain=n,this}updateMatrixWorld(t){if(super.updateMatrixWorld(t),!0===this.hasPlaybackControl&&!1===this.isPlaying)return;this.matrixWorld.decompose(qm,Xm,Ym),Zm.set(0,0,1).applyQuaternion(Xm);const e=this.panner;if(e.positionX){const t=this.context.currentTime+this.listener.timeDelta;e.positionX.linearRampToValueAtTime(qm.x,t),e.positionY.linearRampToValueAtTime(qm.y,t),e.positionZ.linearRampToValueAtTime(qm.z,t),e.orientationX.linearRampToValueAtTime(Zm.x,t),e.orientationY.linearRampToValueAtTime(Zm.y,t),e.orientationZ.linearRampToValueAtTime(Zm.z,t)}else e.setPosition(qm.x,qm.y,qm.z),e.setOrientation(Zm.x,Zm.y,Zm.z)}}exports.PositionalAudio=Jm;class Qm{constructor(t,e=2048){this.analyser=t.context.createAnalyser(),this.analyser.fftSize=e,this.data=new Uint8Array(this.analyser.frequencyBinCount),t.getOutput().connect(this.analyser)}getFrequencyData(){return this.analyser.getByteFrequencyData(this.data),this.data}getAverageFrequency(){let t=0;const e=this.getFrequencyData();for(let n=0;n<e.length;n++)t+=e[n];return t/e.length}}exports.AudioAnalyser=Qm;class Km{constructor(t,e,n){let r,i,s;switch(this.binding=t,this.valueSize=n,e){case"quaternion":r=this._slerp,i=this._slerpAdditive,s=this._setAdditiveIdentityQuaternion,this.buffer=new Float64Array(6*n),this._workIndex=5;break;case"string":case"bool":r=this._select,i=this._select,s=this._setAdditiveIdentityOther,this.buffer=new Array(5*n);break;default:r=this._lerp,i=this._lerpAdditive,s=this._setAdditiveIdentityNumeric,this.buffer=new Float64Array(5*n)}this._mixBufferRegion=r,this._mixBufferRegionAdditive=i,this._setIdentity=s,this._origIndex=3,this._addIndex=4,this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,this.useCount=0,this.referenceCount=0}accumulate(t,e){const n=this.buffer,r=this.valueSize,i=t*r+r;let s=this.cumulativeWeight;if(0===s){for(let t=0;t!==r;++t)n[i+t]=n[t];s=e}else{const t=e/(s+=e);this._mixBufferRegion(n,i,0,t,r)}this.cumulativeWeight=s}accumulateAdditive(t){const e=this.buffer,n=this.valueSize,r=n*this._addIndex;0===this.cumulativeWeightAdditive&&this._setIdentity(),this._mixBufferRegionAdditive(e,r,0,t,n),this.cumulativeWeightAdditive+=t}apply(t){const e=this.valueSize,n=this.buffer,r=t*e+e,i=this.cumulativeWeight,s=this.cumulativeWeightAdditive,o=this.binding;if(this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,i<1){const t=e*this._origIndex;this._mixBufferRegion(n,r,t,1-i,e)}s>0&&this._mixBufferRegionAdditive(n,r,this._addIndex*e,1,e);for(let a=e,l=e+e;a!==l;++a)if(n[a]!==n[a+e]){o.setValue(n,r);break}}saveOriginalState(){const t=this.binding,e=this.buffer,n=this.valueSize,r=n*this._origIndex;t.getValue(e,r);for(let i=n,s=r;i!==s;++i)e[i]=e[r+i%n];this._setIdentity(),this.cumulativeWeight=0,this.cumulativeWeightAdditive=0}restoreOriginalState(){const t=3*this.valueSize;this.binding.setValue(this.buffer,t)}_setAdditiveIdentityNumeric(){const t=this._addIndex*this.valueSize,e=t+this.valueSize;for(let n=t;n<e;n++)this.buffer[n]=0}_setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric(),this.buffer[this._addIndex*this.valueSize+3]=1}_setAdditiveIdentityOther(){const t=this._origIndex*this.valueSize,e=this._addIndex*this.valueSize;for(let n=0;n<this.valueSize;n++)this.buffer[e+n]=this.buffer[t+n]}_select(t,e,n,r,i){if(r>=.5)for(let s=0;s!==i;++s)t[e+s]=t[n+s]}_slerp(t,e,n,r){Xn.slerpFlat(t,e,t,e,t,n,r)}_slerpAdditive(t,e,n,r,i){const s=this._workIndex*i;Xn.multiplyQuaternionsFlat(t,s,t,e,t,n),Xn.slerpFlat(t,e,t,e,t,s,r)}_lerp(t,e,n,r,i){const s=1-r;for(let o=0;o!==i;++o){const i=e+o;t[i]=t[i]*s+t[n+o]*r}}_lerpAdditive(t,e,n,r,i){for(let s=0;s!==i;++s){const i=e+s;t[i]=t[i]+t[n+s]*r}}}exports.PropertyMixer=Km;const $m="\\[\\]\\.:\\/",tf=new RegExp("[\\[\\]\\.:\\/]","g"),ef="[^\\[\\]\\.:\\/]",nf="[^"+"\\[\\]\\.:\\/".replace("\\.","")+"]",rf=/((?:WC+[\/:])*)/.source.replace("WC",ef),sf=/(WCOD+)?/.source.replace("WCOD",nf),of=/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC",ef),af=/\.(WC+)(?:\[(.+)\])?/.source.replace("WC",ef),lf=new RegExp("^"+rf+sf+of+af+"$"),cf=["material","materials","bones"];function hf(t,e,n){const r=n||uf.parseTrackName(e);this._targetGroup=t,this._bindings=t.subscribe_(e,r)}function uf(t,e,n){this.path=e,this.parsedPath=n||uf.parseTrackName(e),this.node=uf.findNode(t,this.parsedPath.nodeName)||t,this.rootNode=t}Object.assign(hf.prototype,{getValue:function(t,e){this.bind();const n=this._targetGroup.nCachedObjects_,r=this._bindings[n];void 0!==r&&r.getValue(t,e)},setValue:function(t,e){const n=this._bindings;for(let r=this._targetGroup.nCachedObjects_,i=n.length;r!==i;++r)n[r].setValue(t,e)},bind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].bind()},unbind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].unbind()}}),Object.assign(uf,{Composite:hf,create:function(t,e,n){return t&&t.isAnimationObjectGroup?new uf.Composite(t,e,n):new uf(t,e,n)},sanitizeNodeName:function(t){return t.replace(/\s/g,"_").replace(tf,"")},parseTrackName:function(t){const e=lf.exec(t);if(!e)throw new Error("PropertyBinding: Cannot parse trackName: "+t);const n={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},r=n.nodeName&&n.nodeName.lastIndexOf(".");if(void 0!==r&&-1!==r){const t=n.nodeName.substring(r+1);-1!==cf.indexOf(t)&&(n.nodeName=n.nodeName.substring(0,r),n.objectName=t)}if(null===n.propertyName||0===n.propertyName.length)throw new Error("PropertyBinding: can not parse propertyName from trackName: "+t);return n},findNode:function(t,e){if(!e||""===e||"."===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){const n=t.skeleton.getBoneByName(e);if(void 0!==n)return n}if(t.children){const n=function(t){for(let r=0;r<t.length;r++){const i=t[r];if(i.name===e||i.uuid===e)return i;const s=n(i.children);if(s)return s}return null},r=n(t.children);if(r)return r}return null}}),Object.assign(uf.prototype,{_getValue_unavailable:function(){},_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(t,e){t[e]=this.node[this.propertyName]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)t[e++]=n[r]},function(t,e){t[e]=this.resolvedProperty[this.propertyIndex]},function(t,e){this.resolvedProperty.toArray(t,e)}],SetterByBindingTypeAndVersioning:[[function(t,e){this.targetObject[this.propertyName]=t[e]},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.needsUpdate=!0},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty[this.propertyIndex]=t[e]},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty.fromArray(t,e)},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}]],getValue:function(t,e){this.bind(),this.getValue(t,e)},setValue:function(t,e){this.bind(),this.setValue(t,e)},bind:function(){let t=this.node;const e=this.parsedPath,n=e.objectName,r=e.propertyName;let i=e.propertyIndex;if(t||(t=uf.findNode(this.rootNode,e.nodeName)||this.rootNode,this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.error("THREE.PropertyBinding: Trying to update node for track: "+this.path+" but it wasn't found.");if(n){let r=e.objectIndex;switch(n){case"materials":if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.materials)return void console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);t=t.material.materials;break;case"bones":if(!t.skeleton)return void console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);t=t.skeleton.bones;for(let e=0;e<t.length;e++)if(t[e].name===r){r=e;break}break;default:if(void 0===t[n])return void console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",this);t=t[n]}if(void 0!==r){if(void 0===t[r])return void console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,t);t=t[r]}}const s=t[r];if(void 0===s){const n=e.nodeName;return void console.error("THREE.PropertyBinding: Trying to update property for track: "+n+"."+r+" but it wasn't found.",t)}let o=this.Versioning.None;this.targetObject=t,void 0!==t.needsUpdate?o=this.Versioning.NeedsUpdate:void 0!==t.matrixWorldNeedsUpdate&&(o=this.Versioning.MatrixWorldNeedsUpdate);let a=this.BindingType.Direct;if(void 0!==i){if("morphTargetInfluences"===r){if(!t.geometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);if(!t.geometry.isBufferGeometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.",this);if(!t.geometry.morphAttributes)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);void 0!==t.morphTargetDictionary[i]&&(i=t.morphTargetDictionary[i])}a=this.BindingType.ArrayElement,this.resolvedProperty=s,this.propertyIndex=i}else void 0!==s.fromArray&&void 0!==s.toArray?(a=this.BindingType.HasFromToArray,this.resolvedProperty=s):Array.isArray(s)?(a=this.BindingType.EntireArray,this.resolvedProperty=s):this.propertyName=r;this.getValue=this.GetterByBindingType[a],this.setValue=this.SetterByBindingTypeAndVersioning[a][o]},unbind:function(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}),Object.assign(uf.prototype,{_getValue_unbound:uf.prototype.getValue,_setValue_unbound:uf.prototype.setValue});class pf{constructor(){this.uuid=Fn.generateUUID(),this._objects=Array.prototype.slice.call(arguments),this.nCachedObjects_=0;const t={};this._indicesByUUID=t;for(let n=0,r=arguments.length;n!==r;++n)t[arguments[n].uuid]=n;this._paths=[],this._parsedPaths=[],this._bindings=[],this._bindingsIndicesByPath={};const e=this;this.stats={objects:{get total(){return e._objects.length},get inUse(){return this.total-e.nCachedObjects_}},get bindingsPerObject(){return e._bindings.length}}}add(){const t=this._objects,e=this._indicesByUUID,n=this._paths,r=this._parsedPaths,i=this._bindings,s=i.length;let o=void 0,a=t.length,l=this.nCachedObjects_;for(let c=0,h=arguments.length;c!==h;++c){const h=arguments[c],u=h.uuid;let p=e[u];if(void 0===p){p=a++,e[u]=p,t.push(h);for(let t=0,e=s;t!==e;++t)i[t].push(new uf(h,n[t],r[t]))}else if(p<l){o=t[p];const a=--l,c=t[a];e[c.uuid]=p,t[p]=c,e[u]=a,t[a]=h;for(let t=0,e=s;t!==e;++t){const e=i[t],s=e[a];let o=e[p];e[p]=s,void 0===o&&(o=new uf(h,n[t],r[t])),e[a]=o}}else t[p]!==o&&console.error("THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.")}this.nCachedObjects_=l}remove(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_;for(let s=0,o=arguments.length;s!==o;++s){const o=arguments[s],a=o.uuid,l=e[a];if(void 0!==l&&l>=i){const s=i++,c=t[s];e[c.uuid]=l,t[l]=c,e[a]=s,t[s]=o;for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[s],i=e[l];e[l]=r,e[s]=i}}}this.nCachedObjects_=i}uncache(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_,s=t.length;for(let o=0,a=arguments.length;o!==a;++o){const a=arguments[o].uuid,l=e[a];if(void 0!==l)if(delete e[a],l<i){const o=--i,a=t[o],c=--s,h=t[c];e[a.uuid]=l,t[l]=a,e[h.uuid]=o,t[o]=h,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[o],i=e[c];e[l]=r,e[o]=i,e.pop()}}else{const i=--s,o=t[i];i>0&&(e[o.uuid]=l),t[l]=o,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t];e[l]=e[i],e.pop()}}}this.nCachedObjects_=i}subscribe_(t,e){const n=this._bindingsIndicesByPath;let r=n[t];const i=this._bindings;if(void 0!==r)return i[r];const s=this._paths,o=this._parsedPaths,a=this._objects,l=a.length,c=this.nCachedObjects_,h=new Array(l);r=i.length,n[t]=r,s.push(t),o.push(e),i.push(h);for(let u=c,p=a.length;u!==p;++u){const n=a[u];h[u]=new uf(n,t,e)}return h}unsubscribe_(t){const e=this._bindingsIndicesByPath,n=e[t];if(void 0!==n){const r=this._paths,i=this._parsedPaths,s=this._bindings,o=s.length-1,a=s[o];e[t[o]]=n,s[n]=a,s.pop(),i[n]=i[o],i.pop(),r[n]=r[o],r.pop()}}}exports.AnimationObjectGroup=pf,pf.prototype.isAnimationObjectGroup=!0;class df{constructor(t,e,n=null,r=e.blendMode){this._mixer=t,this._clip=e,this._localRoot=n,this.blendMode=r;const i=e.tracks,s=i.length,o=new Array(s),a={endingStart:Ge,endingEnd:Ge};for(let l=0;l!==s;++l){const t=i[l].createInterpolant(null);o[l]=t,t.settings=a}this._interpolantSettings=a,this._interpolants=o,this._propertyBindings=new Array(s),this._cacheIndex=null,this._byClipCacheIndex=null,this._timeScaleInterpolant=null,this._weightInterpolant=null,this.loop=Be,this._loopCount=-1,this._startTime=null,this.time=0,this.timeScale=1,this._effectiveTimeScale=1,this.weight=1,this._effectiveWeight=1,this.repetitions=1/0,this.paused=!1,this.enabled=!0,this.clampWhenFinished=!1,this.zeroSlopeAtStart=!0,this.zeroSlopeAtEnd=!0}play(){return this._mixer._activateAction(this),this}stop(){return this._mixer._deactivateAction(this),this.reset()}reset(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()}isRunning(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)}isScheduled(){return this._mixer._isActiveAction(this)}startAt(t){return this._startTime=t,this}setLoop(t,e){return this.loop=t,this.repetitions=e,this}setEffectiveWeight(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()}getEffectiveWeight(){return this._effectiveWeight}fadeIn(t){return this._scheduleFading(t,0,1)}fadeOut(t){return this._scheduleFading(t,1,0)}crossFadeFrom(t,e,n){if(t.fadeOut(e),this.fadeIn(e),n){const n=this._clip.duration,r=t._clip.duration,i=r/n,s=n/r;t.warp(1,i,e),this.warp(s,1,e)}return this}crossFadeTo(t,e,n){return t.crossFadeFrom(this,e,n)}stopFading(){const t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}setEffectiveTimeScale(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()}getEffectiveTimeScale(){return this._effectiveTimeScale}setDuration(t){return this.timeScale=this._clip.duration/t,this.stopWarping()}syncWith(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()}halt(t){return this.warp(this._effectiveTimeScale,0,t)}warp(t,e,n){const r=this._mixer,i=r.time,s=this.timeScale;let o=this._timeScaleInterpolant;null===o&&(o=r._lendControlInterpolant(),this._timeScaleInterpolant=o);const a=o.parameterPositions,l=o.sampleValues;return a[0]=i,a[1]=i+n,l[0]=t/s,l[1]=e/s,this}stopWarping(){const t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}getMixer(){return this._mixer}getClip(){return this._clip}getRoot(){return this._localRoot||this._mixer._root}_update(t,e,n,r){if(!this.enabled)return void this._updateWeight(t);const i=this._startTime;if(null!==i){const r=(t-i)*n;if(r<0||0===n)return;this._startTime=null,e=n*r}e*=this._updateTimeScale(t);const s=this._updateTime(e),o=this._updateWeight(t);if(o>0){const t=this._interpolants,e=this._propertyBindings;switch(this.blendMode){case Ve:for(let n=0,r=t.length;n!==r;++n)t[n].evaluate(s),e[n].accumulateAdditive(o);break;case ke:default:for(let n=0,i=t.length;n!==i;++n)t[n].evaluate(s),e[n].accumulate(r,o)}}}_updateWeight(t){let e=0;if(this.enabled){e=this.weight;const n=this._weightInterpolant;if(null!==n){const r=n.evaluate(t)[0];e*=r,t>n.parameterPositions[1]&&(this.stopFading(),0===r&&(this.enabled=!1))}}return this._effectiveWeight=e,e}_updateTimeScale(t){let e=0;if(!this.paused){e=this.timeScale;const n=this._timeScaleInterpolant;if(null!==n){e*=n.evaluate(t)[0],t>n.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e}_updateTime(t){const e=this._clip.duration,n=this.loop;let r=this.time+t,i=this._loopCount;const s=n===Ne;if(0===t)return-1===i?r:s&&1==(1&i)?e-r:r;if(n===Ie){-1===i&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(r>=e)r=e;else{if(!(r<0)){this.time=r;break t}r=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t<0?-1:1})}}else{if(-1===i&&(t>=0?(i=0,this._setEndings(!0,0===this.repetitions,s)):this._setEndings(0===this.repetitions,!0,s)),r>=e||r<0){const n=Math.floor(r/e);r-=e*n,i+=Math.abs(n);const o=this.repetitions-i;if(o<=0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,r=t>0?e:0,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t>0?1:-1});else{if(1===o){const e=t<0;this._setEndings(e,!e,s)}else this._setEndings(!1,!1,s);this._loopCount=i,this.time=r,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:n})}}else this.time=r;if(s&&1==(1&i))return e-r}return r}_setEndings(t,e,n){const r=this._interpolantSettings;n?(r.endingStart=He,r.endingEnd=He):(r.endingStart=t?this.zeroSlopeAtStart?He:Ge:Ue,r.endingEnd=e?this.zeroSlopeAtEnd?He:Ge:Ue)}_scheduleFading(t,e,n){const r=this._mixer,i=r.time;let s=this._weightInterpolant;null===s&&(s=r._lendControlInterpolant(),this._weightInterpolant=s);const o=s.parameterPositions,a=s.sampleValues;return o[0]=i,a[0]=e,o[1]=i+t,a[1]=n,this}}class mf extends In{constructor(t){super(),this._root=t,this._initMemoryManager(),this._accuIndex=0,this.time=0,this.timeScale=1}_bindAction(t,e){const n=t._localRoot||this._root,r=t._clip.tracks,i=r.length,s=t._propertyBindings,o=t._interpolants,a=n.uuid,l=this._bindingsByRootAndName;let c=l[a];void 0===c&&(c={},l[a]=c);for(let h=0;h!==i;++h){const t=r[h],i=t.name;let l=c[i];if(void 0!==l)s[h]=l;else{if(void 0!==(l=s[h])){null===l._cacheIndex&&(++l.referenceCount,this._addInactiveBinding(l,a,i));continue}const r=e&&e._propertyBindings[h].binding.parsedPath;++(l=new Km(uf.create(n,i,r),t.ValueTypeName,t.getValueSize())).referenceCount,this._addInactiveBinding(l,a,i),s[h]=l}o[h].resultBuffer=l.buffer}}_activateAction(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){const e=(t._localRoot||this._root).uuid,n=t._clip.uuid,r=this._actionsByClip[n];this._bindAction(t,r&&r.knownActions[0]),this._addInactiveAction(t,n,e)}const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==n.useCount++&&(this._lendBinding(n),n.saveOriginalState())}this._lendAction(t)}}_deactivateAction(t){if(this._isActiveAction(t)){const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==--n.useCount&&(n.restoreOriginalState(),this._takeBackBinding(n))}this._takeBackAction(t)}}_initMemoryManager(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;const t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}}_isActiveAction(t){const e=t._cacheIndex;return null!==e&&e<this._nActiveActions}_addInactiveAction(t,e,n){const r=this._actions,i=this._actionsByClip;let s=i[e];if(void 0===s)s={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,i[e]=s;else{const e=s.knownActions;t._byClipCacheIndex=e.length,e.push(t)}t._cacheIndex=r.length,r.push(t),s.actionByRoot[n]=t}_removeInactiveAction(t){const e=this._actions,n=e[e.length-1],r=t._cacheIndex;n._cacheIndex=r,e[r]=n,e.pop(),t._cacheIndex=null;const i=t._clip.uuid,s=this._actionsByClip,o=s[i],a=o.knownActions,l=a[a.length-1],c=t._byClipCacheIndex;l._byClipCacheIndex=c,a[c]=l,a.pop(),t._byClipCacheIndex=null,delete o.actionByRoot[(t._localRoot||this._root).uuid],0===a.length&&delete s[i],this._removeInactiveBindingsForAction(t)}_removeInactiveBindingsForAction(t){const e=t._propertyBindings;for(let n=0,r=e.length;n!==r;++n){const t=e[n];0==--t.referenceCount&&this._removeInactiveBinding(t)}}_lendAction(t){const e=this._actions,n=t._cacheIndex,r=this._nActiveActions++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackAction(t){const e=this._actions,n=t._cacheIndex,r=--this._nActiveActions,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_addInactiveBinding(t,e,n){const r=this._bindingsByRootAndName,i=this._bindings;let s=r[e];void 0===s&&(s={},r[e]=s),s[n]=t,t._cacheIndex=i.length,i.push(t)}_removeInactiveBinding(t){const e=this._bindings,n=t.binding,r=n.rootNode.uuid,i=n.path,s=this._bindingsByRootAndName,o=s[r],a=e[e.length-1],l=t._cacheIndex;a._cacheIndex=l,e[l]=a,e.pop(),delete o[i],0===Object.keys(o).length&&delete s[r]}_lendBinding(t){const e=this._bindings,n=t._cacheIndex,r=this._nActiveBindings++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackBinding(t){const e=this._bindings,n=t._cacheIndex,r=--this._nActiveBindings,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_lendControlInterpolant(){const t=this._controlInterpolants,e=this._nActiveControlInterpolants++;let n=t[e];return void 0===n&&((n=new Yp(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer)).__cacheIndex=e,t[e]=n),n}_takeBackControlInterpolant(t){const e=this._controlInterpolants,n=t.__cacheIndex,r=--this._nActiveControlInterpolants,i=e[r];t.__cacheIndex=r,e[r]=t,i.__cacheIndex=n,e[n]=i}clipAction(t,e,n){const r=e||this._root,i=r.uuid;let s="string"==typeof t?id.findByName(r,t):t;const o=null!==s?s.uuid:t,a=this._actionsByClip[o];let l=null;if(void 0===n&&(n=null!==s?s.blendMode:ke),void 0!==a){const t=a.actionByRoot[i];if(void 0!==t&&t.blendMode===n)return t;l=a.knownActions[0],null===s&&(s=l._clip)}if(null===s)return null;const c=new df(this,s,e,n);return this._bindAction(c,l),this._addInactiveAction(c,o,i),c}existingAction(t,e){const n=e||this._root,r=n.uuid,i="string"==typeof t?id.findByName(n,t):t,s=i?i.uuid:t,o=this._actionsByClip[s];return void 0!==o&&o.actionByRoot[r]||null}stopAllAction(){const t=this._actions;for(let e=this._nActiveActions-1;e>=0;--e)t[e].stop();return this}update(t){t*=this.timeScale;const e=this._actions,n=this._nActiveActions,r=this.time+=t,i=Math.sign(t),s=this._accuIndex^=1;for(let l=0;l!==n;++l){e[l]._update(r,t,i,s)}const o=this._bindings,a=this._nActiveBindings;for(let l=0;l!==a;++l)o[l].apply(s);return this}setTime(t){this.time=0;for(let e=0;e<this._actions.length;e++)this._actions[e].time=0;return this.update(t)}getRoot(){return this._root}uncacheClip(t){const e=this._actions,n=t.uuid,r=this._actionsByClip,i=r[n];if(void 0!==i){const t=i.knownActions;for(let n=0,r=t.length;n!==r;++n){const r=t[n];this._deactivateAction(r);const i=r._cacheIndex,s=e[e.length-1];r._cacheIndex=null,r._byClipCacheIndex=null,s._cacheIndex=i,e[i]=s,e.pop(),this._removeInactiveBindingsForAction(r)}delete r[n]}}uncacheRoot(t){const e=t.uuid,n=this._actionsByClip;for(const i in n){const t=n[i].actionByRoot[e];void 0!==t&&(this._deactivateAction(t),this._removeInactiveAction(t))}const r=this._bindingsByRootAndName[e];if(void 0!==r)for(const i in r){const t=r[i];t.restoreOriginalState(),this._removeInactiveBinding(t)}}uncacheAction(t,e){const n=this.existingAction(t,e);null!==n&&(this._deactivateAction(n),this._removeInactiveAction(n))}}exports.AnimationMixer=mf,mf.prototype._controlInterpolantsResultBuffer=new Float32Array(1);class ff{constructor(t){"string"==typeof t&&(console.warn("THREE.Uniform: Type parameter is no longer needed."),t=arguments[1]),this.value=t}clone(){return new ff(void 0===this.value.clone?this.value:this.value.clone())}}function gf(t,e,n){_h.call(this,t,e),this.meshPerAttribute=n||1}function xf(t,e,n,r,i){this.buffer=t,this.type=e,this.itemSize=n,this.elementSize=r,this.count=i,this.version=0}function vf(t,e,n=0,r=1/0){this.ray=new br(t,e),this.near=n,this.far=r,this.camera=null,this.layers=new Ir,this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}},Object.defineProperties(this.params,{PointCloud:{get:function(){return console.warn("THREE.Raycaster: params.PointCloud has been renamed to params.Points."),this.Points}}})}function yf(t,e){return t.distance-e.distance}function _f(t,e,n,r){if(t.layers.test(e.layers)&&t.raycast(e,n),!0===r){const r=t.children;for(let t=0,i=r.length;t<i;t++)_f(r[t],e,n,!0)}}exports.Uniform=ff,gf.prototype=Object.assign(Object.create(_h.prototype),{constructor:gf,isInstancedInterleavedBuffer:!0,copy:function(t){return _h.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},clone:function(t){const e=_h.prototype.clone.call(this,t);return e.meshPerAttribute=this.meshPerAttribute,e},toJSON:function(t){const e=_h.prototype.toJSON.call(this,t);return e.isInstancedInterleavedBuffer=!0,e.meshPerAttribute=this.meshPerAttribute,e}}),Object.defineProperty(xf.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(xf.prototype,{isGLBufferAttribute:!0,setBuffer:function(t){return this.buffer=t,this},setType:function(t,e){return this.type=t,this.elementSize=e,this},setItemSize:function(t){return this.itemSize=t,this},setCount:function(t){return this.count=t,this}}),Object.assign(vf.prototype,{set:function(t,e){this.ray.set(t,e)},setFromCamera:function(t,e){e&&e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize(),this.camera=e):e&&e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld),this.camera=e):console.error("THREE.Raycaster: Unsupported camera type: "+e.type)},intersectObject:function(t,e=!1,n=[]){return _f(t,this,n,e),n.sort(yf),n},intersectObjects:function(t,e=!1,n=[]){for(let r=0,i=t.length;r<i;r++)_f(t[r],this,n,e);return n.sort(yf),n}});class bf{constructor(t=1,e=0,n=0){return this.radius=t,this.phi=e,this.theta=n,this}set(t,e,n){return this.radius=t,this.phi=e,this.theta=n,this}copy(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this}makeSafe(){return this.phi=Math.max(1e-6,Math.min(Math.PI-1e-6,this.phi)),this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+e*e+n*n),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t,n),this.phi=Math.acos(Fn.clamp(e/this.radius,-1,1))),this}clone(){return(new this.constructor).copy(this)}}exports.Spherical=bf;class wf{constructor(t=1,e=0,n=0){return this.radius=t,this.theta=e,this.y=n,this}set(t,e,n){return this.radius=t,this.theta=e,this.y=n,this}copy(t){return this.radius=t.radius,this.theta=t.theta,this.y=t.y,this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+n*n),this.theta=Math.atan2(t,n),this.y=e,this}clone(){return(new this.constructor).copy(this)}}exports.Cylindrical=wf;const Mf=new On;class Sf{constructor(t=new On(1/0,1/0),e=new On(-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=Mf.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=1/0,this.max.x=this.max.y=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y}getCenter(t){return void 0===t&&(console.warn("THREE.Box2: .getCenter() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box2: .getSize() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box2: .getParameter() target is now required"),e=new On),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y)}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box2: .clampPoint() target is now required"),e=new On),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return Mf.copy(t).clamp(this.min,this.max).sub(t).length()}intersect(t){return this.min.max(t.min),this.max.min(t.max),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box2=Sf,Sf.prototype.isBox2=!0;const Tf=new Yn,Ef=new Yn;class Af{constructor(t=new Yn,e=new Yn){this.start=t,this.end=e}set(t,e){return this.start.copy(t),this.end.copy(e),this}copy(t){return this.start.copy(t.start),this.end.copy(t.end),this}getCenter(t){return void 0===t&&(console.warn("THREE.Line3: .getCenter() target is now required"),t=new Yn),t.addVectors(this.start,this.end).multiplyScalar(.5)}delta(t){return void 0===t&&(console.warn("THREE.Line3: .delta() target is now required"),t=new Yn),t.subVectors(this.end,this.start)}distanceSq(){return this.start.distanceToSquared(this.end)}distance(){return this.start.distanceTo(this.end)}at(t,e){return void 0===e&&(console.warn("THREE.Line3: .at() target is now required"),e=new Yn),this.delta(e).multiplyScalar(t).add(this.start)}closestPointToPointParameter(t,e){Tf.subVectors(t,this.start),Ef.subVectors(this.end,this.start);const n=Ef.dot(Ef);let r=Ef.dot(Tf)/n;return e&&(r=Fn.clamp(r,0,1)),r}closestPointToPoint(t,e,n){const r=this.closestPointToPointParameter(t,e);return void 0===n&&(console.warn("THREE.Line3: .closestPointToPoint() target is now required"),n=new Yn),this.delta(n).multiplyScalar(r).add(this.start)}applyMatrix4(t){return this.start.applyMatrix4(t),this.end.applyMatrix4(t),this}equals(t){return t.start.equals(this.start)&&t.end.equals(this.end)}clone(){return(new this.constructor).copy(this)}}function Lf(t){Xr.call(this),this.material=t,this.render=function(){},this.hasPositions=!1,this.hasNormals=!1,this.hasColors=!1,this.hasUvs=!1,this.positionArray=null,this.normalArray=null,this.colorArray=null,this.uvArray=null,this.count=0}exports.Line3=Af,Lf.prototype=Object.create(Xr.prototype),Lf.prototype.constructor=Lf,Lf.prototype.isImmediateRenderObject=!0;const Rf=new Yn;class Cf extends Xr{constructor(t,e){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=e;const n=new ki,r=[0,0,0,0,0,1,0,0,0,1,0,1,0,0,0,-1,0,1,0,0,0,0,1,1,0,0,0,0,-1,1];for(let s=0,o=1,a=32;s<a;s++,o++){const t=s/a*Math.PI*2,e=o/a*Math.PI*2;r.push(Math.cos(t),Math.sin(t),1,Math.cos(e),Math.sin(e),1)}n.setAttribute("position",new Ci(r,3));const i=new ru({fog:!1,toneMapped:!1});this.cone=new pu(n,i),this.add(this.cone),this.update()}dispose(){this.cone.geometry.dispose(),this.cone.material.dispose()}update(){this.light.updateMatrixWorld();const t=this.light.distance?this.light.distance:1e3,e=t*Math.tan(this.light.angle);this.cone.scale.set(e,e,t),Rf.setFromMatrixPosition(this.light.target.matrixWorld),this.cone.lookAt(Rf),void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}exports.SpotLightHelper=Cf;const Pf=new Yn,Df=new wr,If=new wr;class Bf extends pu{constructor(t){const e=Nf(t),n=new ki,r=[],i=[],s=new xi(0,0,1),o=new xi(0,1,0);for(let a=0;a<e.length;a++){const t=e[a];t.parent&&t.parent.isBone&&(r.push(0,0,0),r.push(0,0,0),i.push(s.r,s.g,s.b),i.push(o.r,o.g,o.b))}n.setAttribute("position",new Ci(r,3)),n.setAttribute("color",new Ci(i,3)),super(n,new ru({vertexColors:!0,depthTest:!1,depthWrite:!1,toneMapped:!1,transparent:!0})),this.type="SkeletonHelper",this.isSkeletonHelper=!0,this.root=t,this.bones=e,this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1}updateMatrixWorld(t){const e=this.bones,n=this.geometry,r=n.getAttribute("position");If.copy(this.root.matrixWorld).invert();for(let i=0,s=0;i<e.length;i++){const t=e[i];t.parent&&t.parent.isBone&&(Df.multiplyMatrices(If,t.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s,Pf.x,Pf.y,Pf.z),Df.multiplyMatrices(If,t.parent.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s+1,Pf.x,Pf.y,Pf.z),s+=2)}n.getAttribute("position").needsUpdate=!0,super.updateMatrixWorld(t)}}function Nf(t){const e=[];t&&t.isBone&&e.push(t);for(let n=0;n<t.children.length;n++)e.push.apply(e,Nf(t.children[n]));return e}exports.SkeletonHelper=Bf;class Ff extends os{constructor(t,e,n){super(new Ep(e,4,2),new vi({wireframe:!0,fog:!1,toneMapped:!1})),this.light=t,this.light.updateMatrixWorld(),this.color=n,this.type="PointLightHelper",this.matrix=this.light.matrixWorld,this.matrixAutoUpdate=!1,this.update()}dispose(){this.geometry.dispose(),this.material.dispose()}update(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)}}exports.PointLightHelper=Ff;const Of=new Yn,zf=new xi,Gf=new xi;class Hf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n;const r=new bp(e);r.rotateY(.5*Math.PI),this.material=new vi({wireframe:!0,fog:!1,toneMapped:!1}),void 0===this.color&&(this.material.vertexColors=!0);const i=r.getAttribute("position"),s=new Float32Array(3*i.count);r.setAttribute("color",new bi(s,3)),this.add(new os(r,this.material)),this.update()}dispose(){this.children[0].geometry.dispose(),this.children[0].material.dispose()}update(){const t=this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{const e=t.geometry.getAttribute("color");zf.copy(this.light.color),Gf.copy(this.light.groundColor);for(let t=0,n=e.count;t<n;t++){const r=t<n/2?zf:Gf;e.setXYZ(t,r.r,r.g,r.b)}e.needsUpdate=!0}t.lookAt(Of.setFromMatrixPosition(this.light.matrixWorld).negate())}}exports.HemisphereLightHelper=Hf;class Uf extends pu{constructor(t=10,e=10,n=4473924,r=8947848){n=new xi(n),r=new xi(r);const i=e/2,s=t/e,o=t/2,a=[],l=[];for(let h=0,u=0,p=-o;h<=e;h++,p+=s){a.push(-o,0,p,o,0,p),a.push(p,0,-o,p,0,o);const t=h===i?n:r;t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3}const c=new ki;c.setAttribute("position",new Ci(a,3)),c.setAttribute("color",new Ci(l,3)),super(c,new ru({vertexColors:!0,toneMapped:!1})),this.type="GridHelper"}}exports.GridHelper=Uf;class kf extends pu{constructor(t=10,e=16,n=8,r=64,i=4473924,s=8947848){i=new xi(i),s=new xi(s);const o=[],a=[];for(let c=0;c<=e;c++){const n=c/e*(2*Math.PI),r=Math.sin(n)*t,l=Math.cos(n)*t;o.push(0,0,0),o.push(r,0,l);const h=1&c?i:s;a.push(h.r,h.g,h.b),a.push(h.r,h.g,h.b)}for(let c=0;c<=n;c++){const e=1&c?i:s,l=t-t/n*c;for(let t=0;t<r;t++){let n=t/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l;o.push(i,0,s),a.push(e.r,e.g,e.b),n=(t+1)/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l,o.push(i,0,s),a.push(e.r,e.g,e.b)}}const l=new ki;l.setAttribute("position",new Ci(o,3)),l.setAttribute("color",new Ci(a,3)),super(l,new ru({vertexColors:!0,toneMapped:!1})),this.type="PolarGridHelper"}}exports.PolarGridHelper=kf;const Vf=new Yn,Wf=new Yn,jf=new Yn;class qf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n,void 0===e&&(e=1);let r=new ki;r.setAttribute("position",new Ci([-e,e,0,e,e,0,e,-e,0,-e,-e,0,-e,e,0],3));const i=new ru({fog:!1,toneMapped:!1});this.lightPlane=new cu(r,i),this.add(this.lightPlane),(r=new ki).setAttribute("position",new Ci([0,0,0,0,0,1],3)),this.targetLine=new cu(r,i),this.add(this.targetLine),this.update()}dispose(){this.lightPlane.geometry.dispose(),this.lightPlane.material.dispose(),this.targetLine.geometry.dispose(),this.targetLine.material.dispose()}update(){Vf.setFromMatrixPosition(this.light.matrixWorld),Wf.setFromMatrixPosition(this.light.target.matrixWorld),jf.subVectors(Wf,Vf),this.lightPlane.lookAt(Wf),void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color)),this.targetLine.lookAt(Wf),this.targetLine.scale.z=jf.length()}}exports.DirectionalLightHelper=qf;const Xf=new Yn,Yf=new gs;class Zf extends pu{constructor(t){const e=new ki,n=new ru({color:16777215,vertexColors:!0,toneMapped:!1}),r=[],i=[],s={},o=new xi(16755200),a=new xi(16711680),l=new xi(43775),c=new xi(16777215),h=new xi(3355443);function u(t,e,n){p(t,n),p(e,n)}function p(t,e){r.push(0,0,0),i.push(e.r,e.g,e.b),void 0===s[t]&&(s[t]=[]),s[t].push(r.length/3-1)}u("n1","n2",o),u("n2","n4",o),u("n4","n3",o),u("n3","n1",o),u("f1","f2",o),u("f2","f4",o),u("f4","f3",o),u("f3","f1",o),u("n1","f1",o),u("n2","f2",o),u("n3","f3",o),u("n4","f4",o),u("p","n1",a),u("p","n2",a),u("p","n3",a),u("p","n4",a),u("u1","u2",l),u("u2","u3",l),u("u3","u1",l),u("c","t",c),u("p","c",h),u("cn1","cn2",h),u("cn3","cn4",h),u("cf1","cf2",h),u("cf3","cf4",h),e.setAttribute("position",new Ci(r,3)),e.setAttribute("color",new Ci(i,3)),super(e,n),this.type="CameraHelper",this.camera=t,this.camera.updateProjectionMatrix&&this.camera.updateProjectionMatrix(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.pointMap=s,this.update()}update(){const t=this.geometry,e=this.pointMap;Yf.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse),Jf("c",e,t,Yf,0,0,-1),Jf("t",e,t,Yf,0,0,1),Jf("n1",e,t,Yf,-1,-1,-1),Jf("n2",e,t,Yf,1,-1,-1),Jf("n3",e,t,Yf,-1,1,-1),Jf("n4",e,t,Yf,1,1,-1),Jf("f1",e,t,Yf,-1,-1,1),Jf("f2",e,t,Yf,1,-1,1),Jf("f3",e,t,Yf,-1,1,1),Jf("f4",e,t,Yf,1,1,1),Jf("u1",e,t,Yf,.7,1.1,-1),Jf("u2",e,t,Yf,-.7,1.1,-1),Jf("u3",e,t,Yf,0,2,-1),Jf("cf1",e,t,Yf,-1,0,1),Jf("cf2",e,t,Yf,1,0,1),Jf("cf3",e,t,Yf,0,-1,1),Jf("cf4",e,t,Yf,0,1,1),Jf("cn1",e,t,Yf,-1,0,-1),Jf("cn2",e,t,Yf,1,0,-1),Jf("cn3",e,t,Yf,0,-1,-1),Jf("cn4",e,t,Yf,0,1,-1),t.getAttribute("position").needsUpdate=!0}}function Jf(t,e,n,r,i,s,o){Xf.set(i,s,o).unproject(r);const a=e[t];if(void 0!==a){const t=n.getAttribute("position");for(let e=0,n=a.length;e<n;e++)t.setXYZ(a[e],Xf.x,Xf.y,Xf.z)}}exports.CameraHelper=Zf;const Qf=new Qn;class Kf extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new Float32Array(24),i=new ki;i.setIndex(new bi(n,1)),i.setAttribute("position",new bi(r,3)),super(i,new ru({color:e,toneMapped:!1})),this.object=t,this.type="BoxHelper",this.matrixAutoUpdate=!1,this.update()}update(t){if(void 0!==t&&console.warn("THREE.BoxHelper: .update() has no longer arguments."),void 0!==this.object&&Qf.setFromObject(this.object),Qf.isEmpty())return;const e=Qf.min,n=Qf.max,r=this.geometry.attributes.position,i=r.array;i[0]=n.x,i[1]=n.y,i[2]=n.z,i[3]=e.x,i[4]=n.y,i[5]=n.z,i[6]=e.x,i[7]=e.y,i[8]=n.z,i[9]=n.x,i[10]=e.y,i[11]=n.z,i[12]=n.x,i[13]=n.y,i[14]=e.z,i[15]=e.x,i[16]=n.y,i[17]=e.z,i[18]=e.x,i[19]=e.y,i[20]=e.z,i[21]=n.x,i[22]=e.y,i[23]=e.z,r.needsUpdate=!0,this.geometry.computeBoundingSphere()}setFromObject(t){return this.object=t,this.update(),this}copy(t){return pu.prototype.copy.call(this,t),this.object=t.object,this}}exports.BoxHelper=Kf;class $f extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new ki;r.setIndex(new bi(n,1)),r.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,-1,-1,1,-1,-1,-1,-1,1,-1,-1],3)),super(r,new ru({color:e,toneMapped:!1})),this.box=t,this.type="Box3Helper",this.geometry.computeBoundingSphere()}updateMatrixWorld(t){const e=this.box;e.isEmpty()||(e.getCenter(this.position),e.getSize(this.scale),this.scale.multiplyScalar(.5),super.updateMatrixWorld(t))}}exports.Box3Helper=$f;class tg extends cu{constructor(t,e=1,n=16776960){const r=n,i=new ki;i.setAttribute("position",new Ci([1,-1,1,-1,1,1,-1,-1,1,1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,1,0,0,1,0,0,0],3)),i.computeBoundingSphere(),super(i,new ru({color:r,toneMapped:!1})),this.type="PlaneHelper",this.plane=t,this.size=e;const s=new ki;s.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,1,1,-1,-1,1,1,-1,1],3)),s.computeBoundingSphere(),this.add(new os(s,new vi({color:r,opacity:.2,transparent:!0,depthWrite:!1,toneMapped:!1})))}updateMatrixWorld(t){let e=-this.plane.constant;Math.abs(e)<1e-8&&(e=1e-8),this.scale.set(.5*this.size,.5*this.size,e),this.children[0].material.side=e<0?p:u,this.lookAt(this.plane.normal),super.updateMatrixWorld(t)}}exports.PlaneHelper=tg;const eg=new Yn;let ng,rg;class ig extends Xr{constructor(t=new Yn(0,0,1),e=new Yn(0,0,0),n=1,r=16776960,i=.2*n,s=.2*i){super(),this.type="ArrowHelper",void 0===ng&&((ng=new ki).setAttribute("position",new Ci([0,0,0,0,1,0],3)),(rg=new Eu(0,.5,1,5,1)).translate(0,-.5,0)),this.position.copy(e),this.line=new cu(ng,new ru({color:r,toneMapped:!1})),this.line.matrixAutoUpdate=!1,this.add(this.line),this.cone=new os(rg,new vi({color:r,toneMapped:!1})),this.cone.matrixAutoUpdate=!1,this.add(this.cone),this.setDirection(t),this.setLength(n,i,s)}setDirection(t){if(t.y>.99999)this.quaternion.set(0,0,0,1);else if(t.y<-.99999)this.quaternion.set(1,0,0,0);else{eg.set(t.z,0,-t.x).normalize();const e=Math.acos(t.y);this.quaternion.setFromAxisAngle(eg,e)}}setLength(t,e=.2*t,n=.2*e){this.line.scale.set(1,Math.max(1e-4,t-e),1),this.line.updateMatrix(),this.cone.scale.set(n,e,n),this.cone.position.y=t,this.cone.updateMatrix()}setColor(t){this.line.material.color.set(t),this.cone.material.color.set(t)}copy(t){return super.copy(t,!1),this.line.copy(t.line),this.cone.copy(t.cone),this}}exports.ArrowHelper=ig;class sg extends pu{constructor(t=1){const e=[0,0,0,t,0,0,0,0,0,0,t,0,0,0,0,0,0,t],n=new ki;n.setAttribute("position",new Ci(e,3)),n.setAttribute("color",new Ci([1,0,0,1,.6,0,0,1,0,.6,1,0,0,0,1,0,.6,1],3)),super(n,new ru({vertexColors:!0,toneMapped:!1})),this.type="AxesHelper"}}exports.AxesHelper=sg;const og=new Float32Array(1),ag=new Int32Array(og.buffer),lg={toHalfFloat:function(t){og[0]=t;const e=ag[0];let n=e>>16&32768,r=e>>12&2047;const i=e>>23&255;return i<103?n:i>142?(n|=31744,n|=(255==i?0:1)&&8388607&e):i<113?n|=((r|=2048)>>114-i)+(r>>113-i&1):(n|=i-112<<10|r>>1,n+=1&r)}};exports.DataUtils=lg;const cg=4,hg=8,ug=Math.pow(2,hg),pg=[.125,.215,.35,.446,.526,.582],dg=hg-cg+1+pg.length,mg=20,fg={[Xe]:0,[Ye]:1,[Je]:2,[Ke]:3,[$e]:4,[tn]:5,[Ze]:6},gg=new vi({side:p,depthWrite:!1,depthTest:!1}),xg=new os(new cs,gg),vg=new lm,{_lodPlanes:yg,_sizeLods:_g,_sigmas:bg}=Cg(),wg=new xi;let Mg=null;const Sg=(1+Math.sqrt(5))/2,Tg=1/Sg,Eg=[new Yn(1,1,1),new Yn(-1,1,1),new Yn(1,1,-1),new Yn(-1,1,-1),new Yn(0,Sg,Tg),new Yn(0,Sg,-Tg),new Yn(Tg,0,Sg),new Yn(-Tg,0,Sg),new Yn(Sg,Tg,0),new Yn(-Sg,Tg,0)];function Ag(t){const e=Math.max(t.r,t.g,t.b),n=Math.min(Math.max(Math.ceil(Math.log2(e)),-128),127);return t.multiplyScalar(Math.pow(2,-n)),(n+128)/255}class Lg{constructor(t){this._renderer=t,this._pingPongRenderTarget=null,this._blurMaterial=Ig(mg),this._equirectShader=null,this._cubemapShader=null,this._compileMaterial(this._blurMaterial)}fromScene(t,e=0,n=.1,r=100){Mg=this._renderer.getRenderTarget();const i=this._allocateTargets();return this._sceneToCubeUV(t,n,r,i),e>0&&this._blur(i,0,0,e),this._applyPMREM(i),this._cleanup(i),i}fromEquirectangular(t){return this._fromTexture(t)}fromCubemap(t){return this._fromTexture(t)}compileCubemapShader(){null===this._cubemapShader&&(this._cubemapShader=Ng(),this._compileMaterial(this._cubemapShader))}compileEquirectangularShader(){null===this._equirectShader&&(this._equirectShader=Bg(),this._compileMaterial(this._equirectShader))}dispose(){this._blurMaterial.dispose(),null!==this._cubemapShader&&this._cubemapShader.dispose(),null!==this._equirectShader&&this._equirectShader.dispose();for(let t=0;t<yg.length;t++)yg[t].dispose()}_cleanup(t){this._pingPongRenderTarget.dispose(),this._renderer.setRenderTarget(Mg),t.scissorTest=!1,Dg(t,0,0,t.width,t.height)}_fromTexture(t){Mg=this._renderer.getRenderTarget();const e=this._allocateTargets(t);return this._textureToCubeUV(t,e),this._applyPMREM(e),this._cleanup(e),e}_allocateTargets(t){const e={magFilter:ut,minFilter:ut,generateMipmaps:!1,type:bt,format:zt,encoding:Rg(t)?t.encoding:Je,depthBuffer:!1},n=Pg(e);return n.depthBuffer=!t,this._pingPongRenderTarget=Pg(e),n}_compileMaterial(t){const e=new os(yg[0],t);this._renderer.compile(e,vg)}_sceneToCubeUV(t,e,n,r){const i=new xs(90,1,e,n),s=[1,-1,1,1,1,1],o=[1,1,1,-1,-1,-1],a=this._renderer,l=a.autoClear,c=a.outputEncoding,h=a.toneMapping;a.getClearColor(wg),a.toneMapping=Z,a.outputEncoding=Xe,a.autoClear=!1;let u=!1;const p=t.background;if(p){if(p.isColor){gg.color.copy(p).convertSRGBToLinear(),t.background=null;const e=Ag(gg.color);gg.opacity=e,u=!0}}else{gg.color.copy(wg).convertSRGBToLinear();const t=Ag(gg.color);gg.opacity=t,u=!0}for(let d=0;d<6;d++){const e=d%3;0==e?(i.up.set(0,s[d],0),i.lookAt(o[d],0,0)):1==e?(i.up.set(0,0,s[d]),i.lookAt(0,o[d],0)):(i.up.set(0,s[d],0),i.lookAt(0,0,o[d])),Dg(r,e*ug,d>2?ug:0,ug,ug),a.setRenderTarget(r),u&&a.render(xg,i),a.render(t,i)}a.toneMapping=h,a.outputEncoding=c,a.autoClear=l}_textureToCubeUV(t,e){const n=this._renderer;t.isCubeTexture?null==this._cubemapShader&&(this._cubemapShader=Ng()):null==this._equirectShader&&(this._equirectShader=Bg());const r=t.isCubeTexture?this._cubemapShader:this._equirectShader,i=new os(yg[0],r),s=r.uniforms;s.envMap.value=t,t.isCubeTexture||s.texelSize.value.set(1/t.image.width,1/t.image.height),s.inputEncoding.value=fg[t.encoding],s.outputEncoding.value=fg[e.texture.encoding],Dg(e,0,0,3*ug,2*ug),n.setRenderTarget(e),n.render(i,vg)}_applyPMREM(t){const e=this._renderer,n=e.autoClear;e.autoClear=!1;for(let r=1;r<dg;r++){const e=Math.sqrt(bg[r]*bg[r]-bg[r-1]*bg[r-1]),n=Eg[(r-1)%Eg.length];this._blur(t,r-1,r,e,n)}e.autoClear=n}_blur(t,e,n,r,i){const s=this._pingPongRenderTarget;this._halfBlur(t,s,e,n,r,"latitudinal",i),this._halfBlur(s,t,n,n,r,"longitudinal",i)}_halfBlur(t,e,n,r,i,s,o){const a=this._renderer,l=this._blurMaterial;"latitudinal"!==s&&"longitudinal"!==s&&console.error("blur direction must be either latitudinal or longitudinal!");const c=new os(yg[r],l),h=l.uniforms,u=_g[n]-1,p=isFinite(i)?Math.PI/(2*u):2*Math.PI/(2*mg-1),d=i/p,m=isFinite(i)?1+Math.floor(3*d):mg;m>mg&&console.warn(`sigmaRadians, ${i}, is too large and will clip, as it requested ${m} samples when the maximum is set to ${mg}`);const f=[];let g=0;for(let v=0;v<mg;++v){const t=v/d,e=Math.exp(-t*t/2);f.push(e),0==v?g+=e:v<m&&(g+=2*e)}for(let v=0;v<f.length;v++)f[v]=f[v]/g;h.envMap.value=t.texture,h.samples.value=m,h.weights.value=f,h.latitudinal.value="latitudinal"===s,o&&(h.poleAxis.value=o),h.dTheta.value=p,h.mipInt.value=hg-n,h.inputEncoding.value=fg[t.texture.encoding],h.outputEncoding.value=fg[t.texture.encoding];const x=_g[r];Dg(e,3*Math.max(0,ug-2*x),(0===r?0:2*ug)+2*x*(r>hg-cg?r-hg+cg:0),3*x,2*x),a.setRenderTarget(e),a.render(c,vg)}}function Rg(t){return void 0!==t&&t.type===bt&&(t.encoding===Xe||t.encoding===Ye||t.encoding===Ze)}function Cg(){const t=[],e=[],n=[];let r=hg;for(let i=0;i<dg;i++){const s=Math.pow(2,r);e.push(s);let o=1/s;i>hg-cg?o=pg[i-hg+cg-1]:0==i&&(o=0),n.push(o);const a=1/(s-1),l=-a/2,c=1+a/2,h=[l,l,c,l,c,c,l,l,c,c,l,c],u=6,p=6,d=3,m=2,f=1,g=new Float32Array(d*p*u),x=new Float32Array(m*p*u),v=new Float32Array(f*p*u);for(let t=0;t<u;t++){const e=t%3*2/3-1,n=t>2?0:-1,r=[e,n,0,e+2/3,n,0,e+2/3,n+1,0,e,n,0,e+2/3,n+1,0,e,n+1,0];g.set(r,d*p*t),x.set(h,m*p*t);const i=[t,t,t,t,t,t];v.set(i,f*p*t)}const y=new ki;y.setAttribute("position",new bi(g,d)),y.setAttribute("uv",new bi(x,m)),y.setAttribute("faceIndex",new bi(v,f)),t.push(y),r>cg&&r--}return{_lodPlanes:t,_sizeLods:e,_sigmas:n}}function Pg(t){const e=new jn(3*ug,3*ug,t);return e.texture.mapping=ot,e.texture.name="PMREM.cubeUv",e.scissorTest=!0,e}function Dg(t,e,n,r,i){t.viewport.set(e,n,r,i),t.scissor.set(e,n,r,i)}function Ig(t){const e=new Float32Array(t),n=new Yn(0,1,0);return new Np({name:"SphericalGaussianBlur",defines:{n:t},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:e},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:n},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t${Og()}\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include <cube_uv_reflection_fragment>\n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Bg(){const t=new On(1,1);return new Np({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null},texelSize:{value:t},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform vec2 texelSize;\n\n\t\t\t${Og()}\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tvec2 f = fract( uv / texelSize - 0.5 );\n\t\t\t\tuv -= f * texelSize;\n\t\t\t\tvec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x += texelSize.x;\n\t\t\t\tvec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.y += texelSize.y;\n\t\t\t\tvec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x -= texelSize.x;\n\t\t\t\tvec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\n\t\t\t\tvec3 tm = mix( tl, tr, f.x );\n\t\t\t\tvec3 bm = mix( bl, br, f.x );\n\t\t\t\tgl_FragColor.rgb = mix( tm, bm, f.y );\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Ng(){return new Np({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\t${Og()}\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Fg(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute vec3 position;\n\t\tattribute vec2 uv;\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Og(){return"\n\n\t\tuniform int inputEncoding;\n\t\tuniform int outputEncoding;\n\n\t\t#include <encodings_pars_fragment>\n\n\t\tvec4 inputTexelToLinear( vec4 value ) {\n\n\t\t\tif ( inputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( inputEncoding == 1 ) {\n\n\t\t\t\treturn sRGBToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 2 ) {\n\n\t\t\t\treturn RGBEToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 3 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 7.0 );\n\n\t\t\t} else if ( inputEncoding == 4 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 16.0 );\n\n\t\t\t} else if ( inputEncoding == 5 ) {\n\n\t\t\t\treturn RGBDToLinear( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn GammaToLinear( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 linearToOutputTexel( vec4 value ) {\n\n\t\t\tif ( outputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( outputEncoding == 1 ) {\n\n\t\t\t\treturn LinearTosRGB( value );\n\n\t\t\t} else if ( outputEncoding == 2 ) {\n\n\t\t\t\treturn LinearToRGBE( value );\n\n\t\t\t} else if ( outputEncoding == 3 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 7.0 );\n\n\t\t\t} else if ( outputEncoding == 4 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 16.0 );\n\n\t\t\t} else if ( outputEncoding == 5 ) {\n\n\t\t\t\treturn LinearToRGBD( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn LinearToGamma( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 envMapTexelToLinear( vec4 color ) {\n\n\t\t\treturn inputTexelToLinear( color );\n\n\t\t}\n\t"}exports.PMREMGenerator=Lg;const zg=0;exports.LineStrip=0;const Gg=1;exports.LinePieces=1;const Hg=0;exports.NoColors=0;const Ug=1;exports.FaceColors=1;const kg=2;function Vg(t){return console.warn("THREE.MeshFaceMaterial has been removed. Use an Array instead."),t}function Wg(t=[]){return console.warn("THREE.MultiMaterial has been removed. Use an Array instead."),t.isMultiMaterial=!0,t.materials=t,t.clone=function(){return t.slice()},t}function jg(t,e){return console.warn("THREE.PointCloud has been renamed to THREE.Points."),new yu(t,e)}function qg(t){return console.warn("THREE.Particle has been renamed to THREE.Sprite."),new Oh(t)}function Xg(t,e){return console.warn("THREE.ParticleSystem has been renamed to THREE.Points."),new yu(t,e)}function Yg(t){return console.warn("THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Zg(t){return console.warn("THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Jg(t){return console.warn("THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Qg(t,e,n){return console.warn("THREE.Vertex has been removed. Use THREE.Vector3 instead."),new Yn(t,e,n)}function Kg(t,e){return console.warn("THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead."),new bi(t,e).setUsage(Mn)}function $g(t,e){return console.warn("THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead."),new wi(t,e)}function tx(t,e){return console.warn("THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead."),new Mi(t,e)}function ex(t,e){return console.warn("THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead."),new Si(t,e)}function nx(t,e){return console.warn("THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead."),new Ti(t,e)}function rx(t,e){return console.warn("THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead."),new Ei(t,e)}function ix(t,e){return console.warn("THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead."),new Ai(t,e)}function sx(t,e){return console.warn("THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead."),new Li(t,e)}function ox(t,e){return console.warn("THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead."),new Ci(t,e)}function ax(t,e){return console.warn("THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead."),new Pi(t,e)}function lx(t){return console.warn("THREE.AxisHelper has been renamed to THREE.AxesHelper."),new sg(t)}function cx(t,e){return console.warn("THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead."),new Kf(t,e)}function hx(t,e){return console.warn("THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead."),new pu(new Bu(t.geometry),new ru({color:void 0!==e?e:16777215}))}function ux(t,e){return console.warn("THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead."),new pu(new Dp(t.geometry),new ru({color:void 0!==e?e:16777215}))}function px(t){return console.warn("THREE.XHRLoader has been renamed to THREE.FileLoader."),new pd(t)}function dx(t){return console.warn("THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader."),new xd(t)}function mx(t,e,n){return console.warn("THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options )."),new ws(t,n)}function fx(){console.error("THREE.CanvasRenderer has been removed")}function gx(){console.error("THREE.JSONLoader has been removed.")}exports.VertexColors=2,yd.create=function(t,e){return console.log("THREE.Curve.create() has been deprecated"),t.prototype=Object.create(yd.prototype),t.prototype.constructor=t,t.prototype.getPoint=e,t},Xd.prototype.fromPoints=function(t){return console.warn("THREE.Path: .fromPoints() has been renamed to .setFromPoints()."),this.setFromPoints(t)},Uf.prototype.setColors=function(){console.error("THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.")},Bf.prototype.update=function(){console.error("THREE.SkeletonHelper: update() no longer needs to be called.")},hd.prototype.extractUrlBase=function(t){return console.warn("THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead."),gm.extractUrlBase(t)},hd.Handlers={add:function(){console.error("THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.")},get:function(){console.error("THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.")}},Sf.prototype.center=function(t){return console.warn("THREE.Box2: .center() has been renamed to .getCenter()."),this.getCenter(t)},Sf.prototype.empty=function(){return console.warn("THREE.Box2: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Sf.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Sf.prototype.size=function(t){return console.warn("THREE.Box2: .size() has been renamed to .getSize()."),this.getSize(t)},Qn.prototype.center=function(t){return console.warn("THREE.Box3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Qn.prototype.empty=function(){return console.warn("THREE.Box3: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Qn.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Qn.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},Qn.prototype.size=function(t){return console.warn("THREE.Box3: .size() has been renamed to .getSize()."),this.getSize(t)},dr.prototype.empty=function(){return console.warn("THREE.Sphere: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Es.prototype.setFromMatrix=function(t){return console.warn("THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix()."),this.setFromProjectionMatrix(t)},Af.prototype.center=function(t){return console.warn("THREE.Line3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Fn.random16=function(){return console.warn("THREE.Math: .random16() has been deprecated. Use Math.random() instead."),Math.random()},Fn.nearestPowerOfTwo=function(t){return console.warn("THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo()."),Fn.floorPowerOfTwo(t)},Fn.nextPowerOfTwo=function(t){return console.warn("THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo()."),Fn.ceilPowerOfTwo(t)},zn.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},zn.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix3: .multiplyVector3Array() has been removed.")},zn.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.applyToVector3Array=function(){console.error("THREE.Matrix3: .applyToVector3Array() has been removed.")},zn.prototype.getInverse=function(t){return console.warn("THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},wr.prototype.extractPosition=function(t){return console.warn("THREE.Matrix4: .extractPosition() has been renamed to .copyPosition()."),this.copyPosition(t)},wr.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},wr.prototype.getPosition=function(){return console.warn("THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead."),(new Yn).setFromMatrixColumn(this,3)},wr.prototype.setRotationFromQuaternion=function(t){return console.warn("THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion()."),this.makeRotationFromQuaternion(t)},wr.prototype.multiplyToArray=function(){console.warn("THREE.Matrix4: .multiplyToArray() has been removed.")},wr.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector4=function(t){return console.warn("THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix4: .multiplyVector3Array() has been removed.")},wr.prototype.rotateAxis=function(t){console.warn("THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead."),t.transformDirection(this)},wr.prototype.crossVector=function(t){return console.warn("THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.translate=function(){console.error("THREE.Matrix4: .translate() has been removed.")},wr.prototype.rotateX=function(){console.error("THREE.Matrix4: .rotateX() has been removed.")},wr.prototype.rotateY=function(){console.error("THREE.Matrix4: .rotateY() has been removed.")},wr.prototype.rotateZ=function(){console.error("THREE.Matrix4: .rotateZ() has been removed.")},wr.prototype.rotateByAxis=function(){console.error("THREE.Matrix4: .rotateByAxis() has been removed.")},wr.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.applyToVector3Array=function(){console.error("THREE.Matrix4: .applyToVector3Array() has been removed.")},wr.prototype.makeFrustum=function(t,e,n,r,i,s){return console.warn("THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead."),this.makePerspective(t,e,r,n,i,s)},wr.prototype.getInverse=function(t){return console.warn("THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},Qr.prototype.isIntersectionLine=function(t){return console.warn("THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine()."),this.intersectsLine(t)},Xn.prototype.multiplyVector3=function(t){return console.warn("THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead."),t.applyQuaternion(this)},Xn.prototype.inverse=function(){return console.warn("THREE.Quaternion: .inverse() has been renamed to invert()."),this.invert()},br.prototype.isIntersectionBox=function(t){return console.warn("THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},br.prototype.isIntersectionPlane=function(t){return console.warn("THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane()."),this.intersectsPlane(t)},br.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},li.prototype.area=function(){return console.warn("THREE.Triangle: .area() has been renamed to .getArea()."),this.getArea()},li.prototype.barycoordFromPoint=function(t,e){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),this.getBarycoord(t,e)},li.prototype.midpoint=function(t){return console.warn("THREE.Triangle: .midpoint() has been renamed to .getMidpoint()."),this.getMidpoint(t)},li.prototypenormal=function(t){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),this.getNormal(t)},li.prototype.plane=function(t){return console.warn("THREE.Triangle: .plane() has been renamed to .getPlane()."),this.getPlane(t)},li.barycoordFromPoint=function(t,e,n,r,i){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),li.getBarycoord(t,e,n,r,i)},li.normal=function(t,e,n,r){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),li.getNormal(t,e,n,r)},Yd.prototype.extractAllPoints=function(t){return console.warn("THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead."),this.extractPoints(t)},Yd.prototype.extrude=function(t){return console.warn("THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead."),new gp(this,t)},Yd.prototype.makeGeometry=function(t){return console.warn("THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead."),new Sp(this,t)},On.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},On.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},On.prototype.lengthManhattan=function(){return console.warn("THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Yn.prototype.setEulerFromRotationMatrix=function(){console.error("THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.")},Yn.prototype.setEulerFromQuaternion=function(){console.error("THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.")},Yn.prototype.getPositionFromMatrix=function(t){return console.warn("THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition()."),this.setFromMatrixPosition(t)},Yn.prototype.getScaleFromMatrix=function(t){return console.warn("THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale()."),this.setFromMatrixScale(t)},Yn.prototype.getColumnFromMatrix=function(t,e){return console.warn("THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn()."),this.setFromMatrixColumn(e,t)},Yn.prototype.applyProjection=function(t){return console.warn("THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead."),this.applyMatrix4(t)},Yn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Yn.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},Yn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Wn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Wn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Xr.prototype.getChildByName=function(t){return console.warn("THREE.Object3D: .getChildByName() has been renamed to .getObjectByName()."),this.getObjectByName(t)},Xr.prototype.renderDepth=function(){console.warn("THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.")},Xr.prototype.translate=function(t,e){return console.warn("THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead."),this.translateOnAxis(e,t)},Xr.prototype.getWorldRotation=function(){console.error("THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.")},Xr.prototype.applyMatrix=function(t){return console.warn("THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(Xr.prototype,{eulerOrder:{get:function(){return console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order},set:function(t){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order=t}},useQuaternion:{get:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")},set:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")}}}),os.prototype.setDrawMode=function(){console.error("THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")},Object.defineProperties(os.prototype,{drawMode:{get:function(){return console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode."),0},set:function(){console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")}}}),Object.defineProperties(Uh.prototype,{objects:{get:function(){return console.warn("THREE.LOD: .objects has been renamed to .levels."),this.levels}}}),Object.defineProperty(Qh.prototype,"useVertexTexture",{get:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")},set:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")}}),Xh.prototype.initBones=function(){console.error("THREE.SkinnedMesh: initBones() has been removed.")},Object.defineProperty(yd.prototype,"__arcLengthDivisions",{get:function(){return console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions},set:function(t){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions=t}}),xs.prototype.setLens=function(t,e){console.warn("THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup."),void 0!==e&&(this.filmGauge=e),this.setFocalLength(t)},Object.defineProperties(Zd.prototype,{onlyShadow:{set:function(){console.warn("THREE.Light: .onlyShadow has been removed.")}},shadowCameraFov:{set:function(t){console.warn("THREE.Light: .shadowCameraFov is now .shadow.camera.fov."),this.shadow.camera.fov=t}},shadowCameraLeft:{set:function(t){console.warn("THREE.Light: .shadowCameraLeft is now .shadow.camera.left."),this.shadow.camera.left=t}},shadowCameraRight:{set:function(t){console.warn("THREE.Light: .shadowCameraRight is now .shadow.camera.right."),this.shadow.camera.right=t}},shadowCameraTop:{set:function(t){console.warn("THREE.Light: .shadowCameraTop is now .shadow.camera.top."),this.shadow.camera.top=t}},shadowCameraBottom:{set:function(t){console.warn("THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom."),this.shadow.camera.bottom=t}},shadowCameraNear:{set:function(t){console.warn("THREE.Light: .shadowCameraNear is now .shadow.camera.near."),this.shadow.camera.near=t}},shadowCameraFar:{set:function(t){console.warn("THREE.Light: .shadowCameraFar is now .shadow.camera.far."),this.shadow.camera.far=t}},shadowCameraVisible:{set:function(){console.warn("THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.")}},shadowBias:{set:function(t){console.warn("THREE.Light: .shadowBias is now .shadow.bias."),this.shadow.bias=t}},shadowDarkness:{set:function(){console.warn("THREE.Light: .shadowDarkness has been removed.")}},shadowMapWidth:{set:function(t){console.warn("THREE.Light: .shadowMapWidth is now .shadow.mapSize.width."),this.shadow.mapSize.width=t}},shadowMapHeight:{set:function(t){console.warn("THREE.Light: .shadowMapHeight is now .shadow.mapSize.height."),this.shadow.mapSize.height=t}}}),Object.defineProperties(bi.prototype,{length:{get:function(){return console.warn("THREE.BufferAttribute: .length has been deprecated. Use .count instead."),this.array.length}},dynamic:{get:function(){return console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.usage===Mn},set:function(){console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.setUsage(Mn)}}}),bi.prototype.setDynamic=function(t){return console.warn("THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},bi.prototype.copyIndicesArray=function(){console.error("THREE.BufferAttribute: .copyIndicesArray() has been removed.")},bi.prototype.setArray=function(){console.error("THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},ki.prototype.addIndex=function(t){console.warn("THREE.BufferGeometry: .addIndex() has been renamed to .setIndex()."),this.setIndex(t)},ki.prototype.addAttribute=function(t,e){return console.warn("THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute()."),e&&e.isBufferAttribute||e&&e.isInterleavedBufferAttribute?"index"===t?(console.warn("THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute."),this.setIndex(e),this):this.setAttribute(t,e):(console.warn("THREE.BufferGeometry: .addAttribute() now expects ( name, attribute )."),this.setAttribute(t,new bi(arguments[1],arguments[2])))},ki.prototype.addDrawCall=function(t,e,n){void 0!==n&&console.warn("THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset."),console.warn("THREE.BufferGeometry: .addDrawCall() is now .addGroup()."),this.addGroup(t,e)},ki.prototype.clearDrawCalls=function(){console.warn("THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups()."),this.clearGroups()},ki.prototype.computeOffsets=function(){console.warn("THREE.BufferGeometry: .computeOffsets() has been removed.")},ki.prototype.removeAttribute=function(t){return console.warn("THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute()."),this.deleteAttribute(t)},ki.prototype.applyMatrix=function(t){return console.warn("THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(ki.prototype,{drawcalls:{get:function(){return console.error("THREE.BufferGeometry: .drawcalls has been renamed to .groups."),this.groups}},offsets:{get:function(){return console.warn("THREE.BufferGeometry: .offsets has been renamed to .groups."),this.groups}}}),Object.defineProperties(xm.prototype,{maxInstancedCount:{get:function(){return console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount},set:function(t){console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount=t}}}),Object.defineProperties(vf.prototype,{linePrecision:{get:function(){return console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold},set:function(t){console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold=t}}}),Object.defineProperties(_h.prototype,{dynamic:{get:function(){return console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.usage===Mn},set:function(t){console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.setUsage(t)}}}),_h.prototype.setDynamic=function(t){return console.warn("THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},_h.prototype.setArray=function(){console.error("THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},gp.prototype.getArrays=function(){console.error("THREE.ExtrudeGeometry: .getArrays() has been removed.")},gp.prototype.addShapeList=function(){console.error("THREE.ExtrudeGeometry: .addShapeList() has been removed.")},gp.prototype.addShape=function(){console.error("THREE.ExtrudeGeometry: .addShape() has been removed.")},yh.prototype.dispose=function(){console.error("THREE.Scene: .dispose() has been removed.")},Object.defineProperties(ff.prototype,{dynamic:{set:function(){console.warn("THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.")}},onUpdate:{value:function(){return console.warn("THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead."),this}}}),Object.defineProperties(hi.prototype,{wrapAround:{get:function(){console.warn("THREE.Material: .wrapAround has been removed.")},set:function(){console.warn("THREE.Material: .wrapAround has been removed.")}},overdraw:{get:function(){console.warn("THREE.Material: .overdraw has been removed.")},set:function(){console.warn("THREE.Material: .overdraw has been removed.")}},wrapRGB:{get:function(){return console.warn("THREE.Material: .wrapRGB has been removed."),new xi}},shading:{get:function(){console.error("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")},set:function(t){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===t}},stencilMask:{get:function(){return console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask},set:function(t){console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask=t}}}),Object.defineProperties(zp.prototype,{metal:{get:function(){return console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead."),!1},set:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead")}}}),Object.defineProperties(Op.prototype,{transparency:{get:function(){return console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission},set:function(t){console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission=t}}}),Object.defineProperties(fs.prototype,{derivatives:{get:function(){return console.warn("THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives},set:function(t){console.warn("THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives=t}}}),fh.prototype.clearTarget=function(t,e,n,r){console.warn("THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead."),this.setRenderTarget(t),this.clear(e,n,r)},fh.prototype.animate=function(t){console.warn("THREE.WebGLRenderer: .animate() is now .setAnimationLoop()."),this.setAnimationLoop(t)},fh.prototype.getCurrentRenderTarget=function(){return console.warn("THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget()."),this.getRenderTarget()},fh.prototype.getMaxAnisotropy=function(){return console.warn("THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy()."),this.capabilities.getMaxAnisotropy()},fh.prototype.getPrecision=function(){return console.warn("THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision."),this.capabilities.precision},fh.prototype.resetGLState=function(){return console.warn("THREE.WebGLRenderer: .resetGLState() is now .state.reset()."),this.state.reset()},fh.prototype.supportsFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' )."),this.extensions.get("OES_texture_float")},fh.prototype.supportsHalfFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' )."),this.extensions.get("OES_texture_half_float")},fh.prototype.supportsStandardDerivatives=function(){return console.warn("THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' )."),this.extensions.get("OES_standard_derivatives")},fh.prototype.supportsCompressedTextureS3TC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' )."),this.extensions.get("WEBGL_compressed_texture_s3tc")},fh.prototype.supportsCompressedTexturePVRTC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' )."),this.extensions.get("WEBGL_compressed_texture_pvrtc")},fh.prototype.supportsBlendMinMax=function(){return console.warn("THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' )."),this.extensions.get("EXT_blend_minmax")},fh.prototype.supportsVertexTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures."),this.capabilities.vertexTextures},fh.prototype.supportsInstancedArrays=function(){return console.warn("THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' )."),this.extensions.get("ANGLE_instanced_arrays")},fh.prototype.enableScissorTest=function(t){console.warn("THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest()."),this.setScissorTest(t)},fh.prototype.initMaterial=function(){console.warn("THREE.WebGLRenderer: .initMaterial() has been removed.")},fh.prototype.addPrePlugin=function(){console.warn("THREE.WebGLRenderer: .addPrePlugin() has been removed.")},fh.prototype.addPostPlugin=function(){console.warn("THREE.WebGLRenderer: .addPostPlugin() has been removed.")},fh.prototype.updateShadowMap=function(){console.warn("THREE.WebGLRenderer: .updateShadowMap() has been removed.")},fh.prototype.setFaceCulling=function(){console.warn("THREE.WebGLRenderer: .setFaceCulling() has been removed.")},fh.prototype.allocTextureUnit=function(){console.warn("THREE.WebGLRenderer: .allocTextureUnit() has been removed.")},fh.prototype.setTexture=function(){console.warn("THREE.WebGLRenderer: .setTexture() has been removed.")},fh.prototype.setTexture2D=function(){console.warn("THREE.WebGLRenderer: .setTexture2D() has been removed.")},fh.prototype.setTextureCube=function(){console.warn("THREE.WebGLRenderer: .setTextureCube() has been removed.")},fh.prototype.getActiveMipMapLevel=function(){return console.warn("THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel()."),this.getActiveMipmapLevel()},Object.defineProperties(fh.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled."),this.shadowMap.enabled=t}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type."),this.shadowMap.type=t}},shadowMapCullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")}},context:{get:function(){return console.warn("THREE.WebGLRenderer: .context has been removed. Use .getContext() instead."),this.getContext()}},vr:{get:function(){return console.warn("THREE.WebGLRenderer: .vr has been renamed to .xr"),this.xr}},gammaInput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead."),!1},set:function(){console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.")}},gammaOutput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),!1},set:function(t){console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),this.outputEncoding=!0===t?Ye:Xe}},toneMappingWhitePoint:{get:function(){return console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed."),1},set:function(){console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.")}}}),Object.defineProperties(sh.prototype,{cullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")}},renderReverseSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")}},renderSingleSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")}}}),Object.defineProperties(jn.prototype,{wrapS:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS=t}},wrapT:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT=t}},magFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter=t}},minFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter=t}},anisotropy:{get:function(){return console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy},set:function(t){console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy=t}},offset:{get:function(){return console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset},set:function(t){console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset=t}},repeat:{get:function(){return console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat},set:function(t){console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat=t}},format:{get:function(){return console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format},set:function(t){console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format=t}},type:{get:function(){return console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type},set:function(t){console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type=t}},generateMipmaps:{get:function(){return console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps},set:function(t){console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps=t}}}),Object.defineProperties(jm.prototype,{load:{value:function(t){console.warn("THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.");const e=this;return(new Dm).load(t,function(t){e.setBuffer(t)}),this}},startTime:{set:function(){console.warn("THREE.Audio: .startTime is now .play( delay ).")}}}),Qm.prototype.getData=function(){return console.warn("THREE.AudioAnalyser: .getData() is now .getFrequencyData()."),this.getFrequencyData()},_s.prototype.updateCubeMap=function(t,e){return console.warn("THREE.CubeCamera: .updateCubeMap() is now .update()."),this.update(t,e)},_s.prototype.clear=function(t,e,n,r){return console.warn("THREE.CubeCamera: .clear() is now .renderTarget.clear()."),this.renderTarget.clear(t,e,n,r)},Hn.crossOrigin=void 0,Hn.loadTexture=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.");const i=new vd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadTextureCube=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.");const i=new gd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadCompressedTexture=function(){console.error("THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.")},Hn.loadCompressedTextureCube=function(){console.error("THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.")};const xx={createMultiMaterialObject:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},detach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},attach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")}};function vx(){console.error("THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js")}exports.SceneUtils=xx,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("register",{detail:{revision:"126"}})),"undefined"!=typeof window&&(window.__THREE__?console.warn("WARNING: Multiple instances of Three.js being imported."):window.__THREE__="126");
+},{}],"xTGv":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MapControls=exports.OrbitControls=void 0;var e=require("../../../build/three.module.js"),t=function(t,n){var o,a,i,r,c,s;void 0===n&&console.warn('THREE.OrbitControls: The second parameter "domElement" is now mandatory.'),n===document&&console.error('THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.'),this.object=t,this.domElement=n,this.enabled=!0,this.target=new e.Vector3,this.minDistance=0,this.maxDistance=1/0,this.minZoom=0,this.maxZoom=1/0,this.minPolarAngle=0,this.maxPolarAngle=Math.PI,this.minAzimuthAngle=-1/0,this.maxAzimuthAngle=1/0,this.enableDamping=!1,this.dampingFactor=.05,this.enableZoom=!0,this.zoomSpeed=1,this.enableRotate=!0,this.rotateSpeed=1,this.enablePan=!0,this.panSpeed=1,this.screenSpacePanning=!0,this.keyPanSpeed=7,this.autoRotate=!1,this.autoRotateSpeed=2,this.keys={LEFT:37,UP:38,RIGHT:39,BOTTOM:40},this.mouseButtons={LEFT:e.MOUSE.ROTATE,MIDDLE:e.MOUSE.DOLLY,RIGHT:e.MOUSE.PAN},this.touches={ONE:e.TOUCH.ROTATE,TWO:e.TOUCH.DOLLY_PAN},this.target0=this.target.clone(),this.position0=this.object.position.clone(),this.zoom0=this.object.zoom,this._domElementKeyEvents=null,this.getPolarAngle=function(){return E.phi},this.getAzimuthalAngle=function(){return E.theta},this.listenToKeyEvents=function(e){e.addEventListener("keydown",Q),this._domElementKeyEvents=e},this.saveState=function(){u.target0.copy(u.target),u.position0.copy(u.object.position),u.zoom0=u.object.zoom},this.reset=function(){u.target.copy(u.target0),u.object.position.copy(u.position0),u.object.zoom=u.zoom0,u.object.updateProjectionMatrix(),u.dispatchEvent(l),u.update(),d=h.NONE},this.update=(o=new e.Vector3,a=(new e.Quaternion).setFromUnitVectors(t.up,new e.Vector3(0,1,0)),i=a.clone().invert(),r=new e.Vector3,c=new e.Quaternion,s=2*Math.PI,function(){var e=u.object.position;o.copy(e).sub(u.target),o.applyQuaternion(a),E.setFromVector3(o),u.autoRotate&&d===h.NONE&&R(2*Math.PI/60/60*u.autoRotateSpeed),u.enableDamping?(E.theta+=f.theta*u.dampingFactor,E.phi+=f.phi*u.dampingFactor):(E.theta+=f.theta,E.phi+=f.phi);var t=u.minAzimuthAngle,n=u.maxAzimuthAngle;return isFinite(t)&&isFinite(n)&&(t<-Math.PI?t+=s:t>Math.PI&&(t-=s),n<-Math.PI?n+=s:n>Math.PI&&(n-=s),E.theta=t<=n?Math.max(t,Math.min(n,E.theta)):E.theta>(t+n)/2?Math.max(t,E.theta):Math.min(n,E.theta)),E.phi=Math.max(u.minPolarAngle,Math.min(u.maxPolarAngle,E.phi)),E.makeSafe(),E.radius*=O,E.radius=Math.max(u.minDistance,Math.min(u.maxDistance,E.radius)),!0===u.enableDamping?u.target.addScaledVector(g,u.dampingFactor):u.target.add(g),o.setFromSpherical(E),o.applyQuaternion(i),e.copy(u.target).add(o),u.object.lookAt(u.target),!0===u.enableDamping?(f.theta*=1-u.dampingFactor,f.phi*=1-u.dampingFactor,g.multiplyScalar(1-u.dampingFactor)):(f.set(0,0,0),g.set(0,0,0)),O=1,!!(v||r.distanceToSquared(u.object.position)>b||8*(1-c.dot(u.object.quaternion))>b)&&(u.dispatchEvent(l),r.copy(u.object.position),c.copy(u.object.quaternion),v=!1,!0)}),this.dispose=function(){u.domElement.removeEventListener("contextmenu",te),u.domElement.removeEventListener("pointerdown",B),u.domElement.removeEventListener("wheel",q),u.domElement.removeEventListener("touchstart",J),u.domElement.removeEventListener("touchend",ee),u.domElement.removeEventListener("touchmove",$),u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),null!==u._domElementKeyEvents&&u._domElementKeyEvents.removeEventListener("keydown",Q)};var u=this,l={type:"change"},m={type:"start"},p={type:"end"},h={NONE:-1,ROTATE:0,DOLLY:1,PAN:2,TOUCH_ROTATE:3,TOUCH_PAN:4,TOUCH_DOLLY_PAN:5,TOUCH_DOLLY_ROTATE:6},d=h.NONE,b=1e-6,E=new e.Spherical,f=new e.Spherical,O=1,g=new e.Vector3,v=!1,T=new e.Vector2,y=new e.Vector2,P=new e.Vector2,L=new e.Vector2,w=new e.Vector2,A=new e.Vector2,N=new e.Vector2,M=new e.Vector2,j=new e.Vector2;function D(){return Math.pow(.95,u.zoomSpeed)}function R(e){f.theta-=e}function S(e){f.phi-=e}var k,C=(k=new e.Vector3,function(e,t){k.setFromMatrixColumn(t,0),k.multiplyScalar(-e),g.add(k)}),Y=function(){var t=new e.Vector3;return function(e,n){!0===u.screenSpacePanning?t.setFromMatrixColumn(n,1):(t.setFromMatrixColumn(n,0),t.crossVectors(u.object.up,t)),t.multiplyScalar(e),g.add(t)}}(),x=function(){var t=new e.Vector3;return function(e,n){var o=u.domElement;if(u.object.isPerspectiveCamera){var a=u.object.position;t.copy(a).sub(u.target);var i=t.length();i*=Math.tan(u.object.fov/2*Math.PI/180),C(2*e*i/o.clientHeight,u.object.matrix),Y(2*n*i/o.clientHeight,u.object.matrix)}else u.object.isOrthographicCamera?(C(e*(u.object.right-u.object.left)/u.object.zoom/o.clientWidth,u.object.matrix),Y(n*(u.object.top-u.object.bottom)/u.object.zoom/o.clientHeight,u.object.matrix)):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - pan disabled."),u.enablePan=!1)}}();function H(e){u.object.isPerspectiveCamera?O/=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom*e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function U(e){u.object.isPerspectiveCamera?O*=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom/e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function _(e){T.set(e.clientX,e.clientY)}function V(e){L.set(e.clientX,e.clientY)}function z(e){if(1==e.touches.length)T.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);T.set(t,n)}}function I(e){if(1==e.touches.length)L.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);L.set(t,n)}}function X(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);N.set(0,o)}function F(e){if(1==e.touches.length)y.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);y.set(t,n)}P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var o=u.domElement;R(2*Math.PI*P.x/o.clientHeight),S(2*Math.PI*P.y/o.clientHeight),T.copy(y)}function Z(e){if(1==e.touches.length)w.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);w.set(t,n)}A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w)}function K(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);M.set(0,o),j.set(0,Math.pow(M.y/N.y,u.zoomSpeed)),H(j.y),N.copy(M)}function B(t){if(!1!==u.enabled)switch(t.pointerType){case"mouse":case"pen":!function(t){var n;switch(t.preventDefault(),u.domElement.focus?u.domElement.focus():window.focus(),t.button){case 0:n=u.mouseButtons.LEFT;break;case 1:n=u.mouseButtons.MIDDLE;break;case 2:n=u.mouseButtons.RIGHT;break;default:n=-1}switch(n){case e.MOUSE.DOLLY:if(!1===u.enableZoom)return;!function(e){N.set(e.clientX,e.clientY)}(t),d=h.DOLLY;break;case e.MOUSE.ROTATE:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enablePan)return;V(t),d=h.PAN}else{if(!1===u.enableRotate)return;_(t),d=h.ROTATE}break;case e.MOUSE.PAN:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enableRotate)return;_(t),d=h.ROTATE}else{if(!1===u.enablePan)return;V(t),d=h.PAN}break;default:d=h.NONE}d!==h.NONE&&(u.domElement.ownerDocument.addEventListener("pointermove",G),u.domElement.ownerDocument.addEventListener("pointerup",W),u.dispatchEvent(m))}(t)}}function G(e){if(!1!==u.enabled)switch(e.pointerType){case"mouse":case"pen":!function(e){if(!1===u.enabled)return;switch(e.preventDefault(),d){case h.ROTATE:if(!1===u.enableRotate)return;!function(e){y.set(e.clientX,e.clientY),P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var t=u.domElement;R(2*Math.PI*P.x/t.clientHeight),S(2*Math.PI*P.y/t.clientHeight),T.copy(y),u.update()}(e);break;case h.DOLLY:if(!1===u.enableZoom)return;!function(e){M.set(e.clientX,e.clientY),j.subVectors(M,N),j.y>0?H(D()):j.y<0&&U(D()),N.copy(M),u.update()}(e);break;case h.PAN:if(!1===u.enablePan)return;!function(e){w.set(e.clientX,e.clientY),A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w),u.update()}(e)}}(e)}}function W(e){switch(e.pointerType){case"mouse":case"pen":!function(e){if(u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),!1===u.enabled)return;u.dispatchEvent(p),d=h.NONE}()}}function q(e){!1===u.enabled||!1===u.enableZoom||d!==h.NONE&&d!==h.ROTATE||(e.preventDefault(),e.stopPropagation(),u.dispatchEvent(m),function(e){e.deltaY<0?U(D()):e.deltaY>0&&H(D()),u.update()}(e),u.dispatchEvent(p))}function Q(e){!1!==u.enabled&&!1!==u.enablePan&&function(e){var t=!1;switch(e.keyCode){case u.keys.UP:x(0,u.keyPanSpeed),t=!0;break;case u.keys.BOTTOM:x(0,-u.keyPanSpeed),t=!0;break;case u.keys.LEFT:x(u.keyPanSpeed,0),t=!0;break;case u.keys.RIGHT:x(-u.keyPanSpeed,0),t=!0}t&&(e.preventDefault(),u.update())}(e)}function J(t){if(!1!==u.enabled){switch(t.preventDefault(),t.touches.length){case 1:switch(u.touches.ONE){case e.TOUCH.ROTATE:if(!1===u.enableRotate)return;z(t),d=h.TOUCH_ROTATE;break;case e.TOUCH.PAN:if(!1===u.enablePan)return;I(t),d=h.TOUCH_PAN;break;default:d=h.NONE}break;case 2:switch(u.touches.TWO){case e.TOUCH.DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&X(e),u.enablePan&&I(e)}(t),d=h.TOUCH_DOLLY_PAN;break;case e.TOUCH.DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&X(e),u.enableRotate&&z(e)}(t),d=h.TOUCH_DOLLY_ROTATE;break;default:d=h.NONE}break;default:d=h.NONE}d!==h.NONE&&u.dispatchEvent(m)}}function $(e){if(!1!==u.enabled)switch(e.preventDefault(),e.stopPropagation(),d){case h.TOUCH_ROTATE:if(!1===u.enableRotate)return;F(e),u.update();break;case h.TOUCH_PAN:if(!1===u.enablePan)return;Z(e),u.update();break;case h.TOUCH_DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&K(e),u.enablePan&&Z(e)}(e),u.update();break;case h.TOUCH_DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&K(e),u.enableRotate&&F(e)}(e),u.update();break;default:d=h.NONE}}function ee(e){!1!==u.enabled&&(u.dispatchEvent(p),d=h.NONE)}function te(e){!1!==u.enabled&&e.preventDefault()}u.domElement.addEventListener("contextmenu",te),u.domElement.addEventListener("pointerdown",B),u.domElement.addEventListener("wheel",q),u.domElement.addEventListener("touchstart",J),u.domElement.addEventListener("touchend",ee),u.domElement.addEventListener("touchmove",$),this.update()};exports.OrbitControls=t,t.prototype=Object.create(e.EventDispatcher.prototype),t.prototype.constructor=t;var n=function(n,o){t.call(this,n,o),this.screenSpacePanning=!1,this.mouseButtons.LEFT=e.MOUSE.PAN,this.mouseButtons.RIGHT=e.MOUSE.ROTATE,this.touches.ONE=e.TOUCH.PAN,this.touches.TWO=e.TOUCH.DOLLY_ROTATE};exports.MapControls=n,n.prototype=Object.create(e.EventDispatcher.prototype),n.prototype.constructor=n;
+},{"../../../build/three.module.js":"dKqR"}],"Jcll":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.BufferGeometryUtils=void 0;var e=require("../../../build/three.module.js"),t={computeTangents:function(e){e.computeTangents(),console.warn("THREE.BufferGeometryUtils: .computeTangents() has been removed. Use BufferGeometry.computeTangents() instead.")},mergeBufferGeometries:function(t,r){for(var o=null!==t[0].index,i=new Set(Object.keys(t[0].attributes)),n=new Set(Object.keys(t[0].morphAttributes)),a={},u={},s=t[0].morphTargetsRelative,f=new e.BufferGeometry,l=0,m=0;m<t.length;++m){var g=t[m],c=0;if(o!==(null!==g.index))return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". All geometries must have compatible attributes; make sure index attribute exists among all geometries, or in none of them."),null;for(var d in g.attributes){if(!i.has(d))return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+'. All geometries must have compatible attributes; make sure "'+d+'" attribute exists among all geometries, or in none of them.'),null;void 0===a[d]&&(a[d]=[]),a[d].push(g.attributes[d]),c++}if(c!==i.size)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". Make sure all geometries have the same number of attributes."),null;if(s!==g.morphTargetsRelative)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". .morphTargetsRelative must be consistent throughout all geometries."),null;for(var d in g.morphAttributes){if(!n.has(d))return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+".  .morphAttributes must be consistent throughout all geometries."),null;void 0===u[d]&&(u[d]=[]),u[d].push(g.morphAttributes[d])}if(f.userData.mergedUserData=f.userData.mergedUserData||[],f.userData.mergedUserData.push(g.userData),r){var h;if(o)h=g.index.count;else{if(void 0===g.attributes.position)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". The geometry must have either an index or a position attribute"),null;h=g.attributes.position.count}f.addGroup(l,h,m),l+=h}}if(o){var b=0,p=[];for(m=0;m<t.length;++m){for(var v=t[m].index,y=0;y<v.count;++y)p.push(v.getX(y)+b);b+=t[m].attributes.position.count}f.setIndex(p)}for(var d in a){var A=this.mergeBufferAttributes(a[d]);if(!A)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the "+d+" attribute."),null;f.setAttribute(d,A)}for(var d in u){var B=u[d][0].length;if(0===B)break;f.morphAttributes=f.morphAttributes||{},f.morphAttributes[d]=[];for(m=0;m<B;++m){var w=[];for(y=0;y<u[d].length;++y)w.push(u[d][y][m]);var E=this.mergeBufferAttributes(w);if(!E)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the "+d+" morphAttribute."),null;f.morphAttributes[d].push(E)}}return f},mergeBufferAttributes:function(t){for(var r,o,i,n=0,a=0;a<t.length;++a){var u=t[a];if(u.isInterleavedBufferAttribute)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. InterleavedBufferAttributes are not supported."),null;if(void 0===r&&(r=u.array.constructor),r!==u.array.constructor)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.array must be of consistent array types across matching attributes."),null;if(void 0===o&&(o=u.itemSize),o!==u.itemSize)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.itemSize must be consistent across matching attributes."),null;if(void 0===i&&(i=u.normalized),i!==u.normalized)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.normalized must be consistent across matching attributes."),null;n+=u.array.length}var s=new r(n),f=0;for(a=0;a<t.length;++a)s.set(t[a].array,f),f+=t[a].array.length;return new e.BufferAttribute(s,o,i)},interleaveAttributes:function(t){for(var r,o=0,i=0,n=0,a=t.length;n<a;++n){var u=t[n];if(void 0===r&&(r=u.array.constructor),r!==u.array.constructor)return console.error("AttributeBuffers of different types cannot be interleaved"),null;o+=u.array.length,i+=u.itemSize}var s=new e.InterleavedBuffer(new r(o),i),f=0,l=[],m=["getX","getY","getZ","getW"],g=["setX","setY","setZ","setW"],c=0;for(a=t.length;c<a;c++){var d=(u=t[c]).itemSize,h=u.count,b=new e.InterleavedBufferAttribute(s,d,f,u.normalized);l.push(b),f+=d;for(var p=0;p<h;p++)for(var v=0;v<d;v++)b[g[v]](p,u[m[v]](p))}return l},estimateBytesUsed:function(e){var t=0;for(var r in e.attributes){var o=e.getAttribute(r);t+=o.count*o.itemSize*o.array.BYTES_PER_ELEMENT}var i=e.getIndex();return t+=i?i.count*i.itemSize*i.array.BYTES_PER_ELEMENT:0},mergeVertices:function(t,r=1e-4){r=Math.max(r,Number.EPSILON);for(var o={},i=t.getIndex(),n=t.getAttribute("position"),a=i?i.count:n.count,u=0,s=Object.keys(t.attributes),f={},l={},m=[],g=["getX","getY","getZ","getW"],c=0,d=s.length;c<d;c++){f[A=s[c]]=[],(T=t.morphAttributes[A])&&(l[A]=new Array(T.length).fill().map(()=>[]))}var h=Math.log10(1/r),b=Math.pow(10,h);for(c=0;c<a;c++){var p=i?i.getX(c):c,v="",y=0;for(d=s.length;y<d;y++)for(var A=s[y],B=(E=t.getAttribute(A)).itemSize,w=0;w<B;w++)v+=`${~~(E[g[w]](p)*b)},`;if(v in o)m.push(o[v]);else{for(y=0,d=s.length;y<d;y++){A=s[y];var E=t.getAttribute(A),T=t.morphAttributes[A],G=(B=E.itemSize,f[A]),x=l[A];for(w=0;w<B;w++){var U=g[w];if(G.push(E[U](p)),T)for(var M=0,S=T.length;M<S;M++)x[M].push(T[M][U](p))}}o[v]=u,m.push(u),u++}}const R=t.clone();for(c=0,d=s.length;c<d;c++){A=s[c];var z=t.getAttribute(A),X=new z.array.constructor(f[A]);E=new e.BufferAttribute(X,z.itemSize,z.normalized);if(R.setAttribute(A,E),A in l)for(y=0;y<l[A].length;y++){var H=t.morphAttributes[A][y],D=(X=new H.array.constructor(l[A][y]),new e.BufferAttribute(X,H.itemSize,H.normalized));R.morphAttributes[A][y]=D}}return R.setIndex(m),R},toTrianglesDrawMode:function(t,r){if(r===e.TrianglesDrawMode)return console.warn("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles."),t;if(r===e.TriangleFanDrawMode||r===e.TriangleStripDrawMode){var o=t.getIndex();if(null===o){var i=[],n=t.getAttribute("position");if(void 0===n)return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. Processing not possible."),t;for(var a=0;a<n.count;a++)i.push(a);t.setIndex(i),o=t.getIndex()}var u=o.count-2,s=[];if(r===e.TriangleFanDrawMode)for(a=1;a<=u;a++)s.push(o.getX(0)),s.push(o.getX(a)),s.push(o.getX(a+1));else for(a=0;a<u;a++)a%2==0?(s.push(o.getX(a)),s.push(o.getX(a+1)),s.push(o.getX(a+2))):(s.push(o.getX(a+2)),s.push(o.getX(a+1)),s.push(o.getX(a)));s.length/3!==u&&console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unable to generate correct amount of triangles.");var f=t.clone();return f.setIndex(s),f.clearGroups(),f}return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unknown draw mode:",r),t},computeMorphedAttributes:function(t){if(!0!==t.geometry.isBufferGeometry)return console.error("THREE.BufferGeometryUtils: Geometry is not of type BufferGeometry."),null;var r=new e.Vector3,o=new e.Vector3,i=new e.Vector3,n=new e.Vector3,a=new e.Vector3,u=new e.Vector3,s=new e.Vector3,f=new e.Vector3,l=new e.Vector3;function m(e,t,m,g,c,d,h,b,p){r.fromBufferAttribute(m,d),o.fromBufferAttribute(m,h),i.fromBufferAttribute(m,b);var v=e.morphTargetInfluences;if(t.morphTargets&&g&&v){s.set(0,0,0),f.set(0,0,0),l.set(0,0,0);for(var y=0,A=g.length;y<A;y++){var B=v[y],w=g[y];0!==B&&(n.fromBufferAttribute(w,d),a.fromBufferAttribute(w,h),u.fromBufferAttribute(w,b),c?(s.addScaledVector(n,B),f.addScaledVector(a,B),l.addScaledVector(u,B)):(s.addScaledVector(n.sub(r),B),f.addScaledVector(a.sub(o),B),l.addScaledVector(u.sub(i),B)))}r.add(s),o.add(f),i.add(l)}e.isSkinnedMesh&&(e.boneTransform(d,r),e.boneTransform(h,o),e.boneTransform(b,i)),p[3*d+0]=r.x,p[3*d+1]=r.y,p[3*d+2]=r.z,p[3*h+0]=o.x,p[3*h+1]=o.y,p[3*h+2]=o.z,p[3*b+0]=i.x,p[3*b+1]=i.y,p[3*b+2]=i.z}var g,c,d,h,b,p,v,y,A,B=t.geometry,w=t.material,E=B.index,T=B.attributes.position,G=B.morphAttributes.position,x=B.morphTargetsRelative,U=B.attributes.normal,M=B.morphAttributes.position,S=B.groups,R=B.drawRange,z=new Float32Array(T.count*T.itemSize),X=new Float32Array(U.count*U.itemSize);if(null!==E)if(Array.isArray(w))for(h=0,p=S.length;h<p;h++)for(A=w[(y=S[h]).materialIndex],b=Math.max(y.start,R.start),v=Math.min(y.start+y.count,R.start+R.count);b<v;b+=3)m(t,A,T,G,x,g=E.getX(b),c=E.getX(b+1),d=E.getX(b+2),z),m(t,A,U,M,x,g,c,d,X);else for(h=Math.max(0,R.start),p=Math.min(E.count,R.start+R.count);h<p;h+=3)m(t,w,T,G,x,g=E.getX(h),c=E.getX(h+1),d=E.getX(h+2),z),m(t,w,U,M,x,g,c,d,X);else if(void 0!==T)if(Array.isArray(w))for(h=0,p=S.length;h<p;h++)for(A=w[(y=S[h]).materialIndex],b=Math.max(y.start,R.start),v=Math.min(y.start+y.count,R.start+R.count);b<v;b+=3)m(t,A,T,G,x,g=b,c=b+1,d=b+2,z),m(t,A,U,M,x,g,c,d,X);else for(h=Math.max(0,R.start),p=Math.min(T.count,R.start+R.count);h<p;h+=3)m(t,w,T,G,x,g=h,c=h+1,d=h+2,z),m(t,w,U,M,x,g,c,d,X);return{positionAttribute:T,normalAttribute:U,morphedPositionAttribute:new e.Float32BufferAttribute(z,3),morphedNormalAttribute:new e.Float32BufferAttribute(X,3)}}};exports.BufferGeometryUtils=t;
+},{"../../../build/three.module.js":"dKqR"}],"tuIt":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.CONTAINED=exports.INTERSECTED=exports.NOT_INTERSECTED=exports.SAH=exports.AVERAGE=exports.CENTER=void 0;var r=0;exports.CENTER=r;var E=1;exports.AVERAGE=E;var e=2;exports.SAH=e;var t=0;exports.NOT_INTERSECTED=t;var o=1;exports.INTERSECTED=o;var s=2;exports.CONTAINED=s;
+},{}],"qYFu":[function(require,module,exports) {
+"use strict";function e(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=function t(){e(this,t)};exports.default=t;
+},{}],"a4zN":[function(require,module,exports) {
+"use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
+},{}],"IMAa":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.buildTree=w,exports.buildPackedTree=B,exports.IS_LEAFNODE_FLAG=exports.BYTES_PER_NODE=void 0;var r=require("three"),n=o(require("./MeshBVHNode.js")),t=require("./Utils/ArrayBoxUtilities.js"),e=require("./Constants.js");function o(r){return r&&r.__esModule?r:{default:r}}function a(r,n){var t;if("undefined"==typeof Symbol||null==r[Symbol.iterator]){if(Array.isArray(r)||(t=i(r))||n&&r&&"number"==typeof r.length){t&&(r=t);var e=0,o=function(){};return{s:o,n:function(){return e>=r.length?{done:!0}:{done:!1,value:r[e++]}},e:function(r){throw r},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,u=!0,f=!1;return{s:function(){t=r[Symbol.iterator]()},n:function(){var r=t.next();return u=r.done,r},e:function(r){f=!0,a=r},f:function(){try{u||null==t.return||t.return()}finally{if(f)throw a}}}}function i(r,n){if(r){if("string"==typeof r)return u(r,n);var t=Object.prototype.toString.call(r).slice(8,-1);return"Object"===t&&r.constructor&&(t=r.constructor.name),"Map"===t||"Set"===t?Array.from(r):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?u(r,n):void 0}}function u(r,n){(null==n||n>r.length)&&(n=r.length);for(var t=0,e=new Array(n);t<n;t++)e[t]=r[t];return e}var f=Math.pow(2,-24),s=["x","y","z"],l=new r.Box3;function v(n){if(!n.index){var t=n.attributes.position.count,e=new(t>65535?Uint32Array:Uint16Array)(t);n.setIndex(new r.BufferAttribute(e,1));for(var o=0;o<t;o++)e[o]=o}}function c(r){if(!r.groups||!r.groups.length)return[{offset:0,count:r.index.count/3}];var n,t=[],e=new Set,o=a(r.groups);try{for(o.s();!(n=o.n()).done;){var i=n.value;e.add(i.start),e.add(i.start+i.count)}}catch(v){o.e(v)}finally{o.f()}for(var u=Array.from(e.values()).sort(function(r,n){return r-n}),f=0;f<u.length-1;f++){var s=u[f],l=u[f+1];t.push({offset:s/3,count:(l-s)/3})}return t}function d(r,n,t,e){for(var o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=1/0,i=1/0,u=1/0,f=-1/0,s=-1/0,l=-1/0,v=1/0,c=1/0,d=1/0,g=-1/0,y=-1/0,h=-1/0,x=null!==o,p=6*n,b=6*(n+t);p<b;p+=6){var w=r[p+0],A=r[p+1],m=w-A,B=w+A;m<a&&(a=m),B>f&&(f=B),x&&w<v&&(v=w),x&&w>g&&(g=w);var E=r[p+2],D=r[p+3],S=E-D,_=E+D;S<i&&(i=S),_>s&&(s=_),x&&E<c&&(c=E),x&&E>y&&(y=E);var F=r[p+4],M=r[p+5],T=F-M,I=F+M;T<u&&(u=T),I>l&&(l=I),x&&F<d&&(d=F),x&&F>h&&(h=F)}e[0]=a,e[1]=i,e[2]=u,e[3]=f,e[4]=s,e[5]=l,x&&(o[0]=v,o[1]=c,o[2]=d,o[3]=g,o[4]=y,o[5]=h)}function g(r,n,t,e){for(var o=1/0,a=1/0,i=1/0,u=-1/0,f=-1/0,s=-1/0,l=6*n,v=6*(n+t);l<v;l+=6){var c=r[l+0];c<o&&(o=c),c>u&&(u=c);var d=r[l+2];d<a&&(a=d),d>f&&(f=d);var g=r[l+4];g<i&&(i=g),g>s&&(s=g)}e[0]=o,e[1]=a,e[2]=i,e[3]=u,e[4]=f,e[5]=s}function y(r,n,t,e,o,a){for(var i=e,u=e+o-1,f=a.pos,s=2*a.axis;;){for(;i<=u&&n[6*i+s]<f;)i++;for(;i<=u&&n[6*u+s]>=f;)u--;if(!(i<u))return i;for(var l=0;l<3;l++){var v=r[3*i+l];r[3*i+l]=r[3*u+l],r[3*u+l]=v;var c=n[6*i+2*l+0];n[6*i+2*l+0]=n[6*u+2*l+0],n[6*u+2*l+0]=c;var d=n[6*i+2*l+1];n[6*i+2*l+1]=n[6*u+2*l+1],n[6*u+2*l+1]=d}if(t)for(var g=0;g<3;g++){var y=t[g][i];t[g][i]=t[g][u],t[g][u]=y}i++,u--}}function h(r,n,o,a,i,u,f){var v=-1,c=0;if(f===e.CENTER)-1!==(v=(0,t.getLongestEdgeIndex)(n))&&(c=(n[v]+n[v+3])/2);else if(f===e.AVERAGE)-1!==(v=(0,t.getLongestEdgeIndex)(r))&&(c=x(o,i,u,v));else if(f===e.SAH){for(var d=(0,t.arrayToBox)(r,l),g=[d.max.x-d.min.x,d.max.y-d.min.y,d.max.z-d.min.z],y=2*(g[0]*g[1]+g[0]*g[2]+g[1]*g[2]),h=[[],[],[]],p=i,b=i+u;p<b;p++)for(var w=0;w<3;w++)h[w].push(a[w][p]);h.forEach(function(r){return r.sort(function(r,n){return r.p-n.p})});var A=function(r,n,t,e,o){return 3+1*(n/r*t+e/r*o)};v=-1;for(var m=1*u,B=0;B<3;B++)for(var E=(B+1)%3,D=(B+2)%3,S=d.min[s[B]],_=d.max[s[B]],F=h[B],M=0,T=u,I=0;I<F.length;I++){var j=F[I];M++,T--;var L=j.p-S,O=_-j.p,U=g[E],H=g[E],N=g[D],C=g[D],V=A(y,2*(U*N+U*L+N*L),M,2*(H*C+H*O+C*O),T);V<m&&(v=B,c=j.p,m=V)}}return{axis:v,pos:c}}function x(r,n,t,e){for(var o=0,a=n,i=n+t;a<i;a++)o+=r[6*a+2*e];return o/t}function p(r){for(var n=r.length/6,t=[new Array(n),new Array(n),new Array(n)],e=0;e<n;e++)for(var o=0;o<3;o++)t[o][e]={p:r[6*e+2*o],tri:e};return t}function b(r){for(var n=r.attributes.position.array,t=r.index.array,e=t.length/3,o=new Float32Array(6*e),a=0;a<e;a++)for(var i=3*a,u=6*a,s=3*t[i+0],l=3*t[i+1],v=3*t[i+2],c=0;c<3;c++){var d=n[s+c],g=n[l+c],y=n[v+c],h=d;g<h&&(h=g),y<h&&(h=y);var x=d;g>x&&(x=g),y>x&&(x=y);var p=(x-h)/2,b=2*c;o[u+b+0]=h+p,o[u+b+1]=p+(Math.abs(h)+p)*f}return o}function w(o,i){function u(r,t,e){var a=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:0;if(!E&&i>=w&&(E=!0,A&&(console.warn("MeshBVH: Max depth of ".concat(w," reached when generating BVH. Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
+},{"three":"dKqR","./MeshBVHNode.js":"qYFu","./Utils/ArrayBoxUtilities.js":"a4zN","./Constants.js":"tuIt"}],"GlCc":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
+},{"three":"dKqR"}],"gld0":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
+},{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+},{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+},{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
+"use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
+},{}],"lzxM":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTri=s;var e=require("three"),r=new e.Vector3,t=new e.Vector3,n=new e.Vector3,i=new e.Vector2,o=new e.Vector2,u=new e.Vector2,a=new e.Vector3,c=new e.Vector3;function f(r,t,n,i,o,u,a,f){if(null===(t.side===e.BackSide?i.intersectTriangle(a,u,o,!0,f):i.intersectTriangle(o,u,a,t.side!==e.DoubleSide,f)))return null;c.copy(f),c.applyMatrix4(r.matrixWorld);var l=n.ray.origin.distanceTo(c);return l<n.near||l>n.far?null:{distance:l,point:c.clone(),object:r}}function l(c,l,s,d,b,m,V,g){r.fromBufferAttribute(d,m),t.fromBufferAttribute(d,V),n.fromBufferAttribute(d,g);var w=f(c,c.material,l,s,r,t,n,a);if(w){b&&(i.fromBufferAttribute(b,m),o.fromBufferAttribute(b,V),u.fromBufferAttribute(b,g),w.uv=e.Triangle.getUV(a,r,t,n,i,o,u,new e.Vector2));var x={a:m,b:V,c:g,normal:new e.Vector3,materialIndex:0};e.Triangle.getNormal(r,t,n,x.normal),w.face=x,w.faceIndex=m}return w}function s(e,r,t,n,i,o){var u=3*i,a=r.index.getX(u),c=r.index.getX(u+1),f=r.index.getX(u+2),s=l(e,t,n,r.attributes.position,r.attributes.uv,a,c,f);return s?(s.faceIndex=i,o&&o.push(s),s):null}
+},{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
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+},{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
+"use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
+},{}],"HxoX":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
+},{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
+},{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"ODOB":[function(require,module,exports) {
+"use strict";require("core-js/modules/es6.array.copy-within"),require("core-js/modules/es6.array.fill"),require("core-js/modules/es6.array.find"),require("core-js/modules/es6.array.find-index"),require("core-js/modules/es7.array.flat-map"),require("core-js/modules/es6.array.from"),require("core-js/modules/es7.array.includes"),require("core-js/modules/es6.array.iterator"),require("core-js/modules/es6.array.of"),require("core-js/modules/es6.array.sort"),require("core-js/modules/es6.array.species"),require("core-js/modules/es6.date.to-json"),require("core-js/modules/es6.date.to-primitive"),require("core-js/modules/es6.function.has-instance"),require("core-js/modules/es6.function.name"),require("core-js/modules/es6.map"),require("core-js/modules/es6.math.acosh"),require("core-js/modules/es6.math.asinh"),require("core-js/modules/es6.math.atanh"),require("core-js/modules/es6.math.cbrt"),require("core-js/modules/es6.math.clz32"),require("core-js/modules/es6.math.cosh"),require("core-js/modules/es6.math.expm1"),require("core-js/modules/es6.math.fround"),require("core-js/modules/es6.math.hypot"),require("core-js/modules/es6.math.imul"),require("core-js/modules/es6.math.log1p"),require("core-js/modules/es6.math.log10"),require("core-js/modules/es6.math.log2"),require("core-js/modules/es6.math.sign"),require("core-js/modules/es6.math.sinh"),require("core-js/modules/es6.math.tanh"),require("core-js/modules/es6.math.trunc"),require("core-js/modules/es6.number.constructor"),require("core-js/modules/es6.number.epsilon"),require("core-js/modules/es6.number.is-finite"),require("core-js/modules/es6.number.is-integer"),require("core-js/modules/es6.number.is-nan"),require("core-js/modules/es6.number.is-safe-integer"),require("core-js/modules/es6.number.max-safe-integer"),require("core-js/modules/es6.number.min-safe-integer"),require("core-js/modules/es6.number.parse-float"),require("core-js/modules/es6.number.parse-int"),require("core-js/modules/es6.object.assign"),require("core-js/modules/es7.object.define-getter"),require("core-js/modules/es7.object.define-setter"),require("core-js/modules/es7.object.entries"),require("core-js/modules/es6.object.freeze"),require("core-js/modules/es6.object.get-own-property-descriptor"),require("core-js/modules/es7.object.get-own-property-descriptors"),require("core-js/modules/es6.object.get-own-property-names"),require("core-js/modules/es6.object.get-prototype-of"),require("core-js/modules/es7.object.lookup-getter"),require("core-js/modules/es7.object.lookup-setter"),require("core-js/modules/es6.object.prevent-extensions"),require("core-js/modules/es6.object.to-string"),require("core-js/modules/es6.object.is"),require("core-js/modules/es6.object.is-frozen"),require("core-js/modules/es6.object.is-sealed"),require("core-js/modules/es6.object.is-extensible"),require("core-js/modules/es6.object.keys"),require("core-js/modules/es6.object.seal"),require("core-js/modules/es6.object.set-prototype-of"),require("core-js/modules/es7.object.values"),require("core-js/modules/es6.promise"),require("core-js/modules/es7.promise.finally"),require("core-js/modules/es6.reflect.apply"),require("core-js/modules/es6.reflect.construct"),require("core-js/modules/es6.reflect.define-property"),require("core-js/modules/es6.reflect.delete-property"),require("core-js/modules/es6.reflect.get"),require("core-js/modules/es6.reflect.get-own-property-descriptor"),require("core-js/modules/es6.reflect.get-prototype-of"),require("core-js/modules/es6.reflect.has"),require("core-js/modules/es6.reflect.is-extensible"),require("core-js/modules/es6.reflect.own-keys"),require("core-js/modules/es6.reflect.prevent-extensions"),require("core-js/modules/es6.reflect.set"),require("core-js/modules/es6.reflect.set-prototype-of"),require("core-js/modules/es6.regexp.constructor"),require("core-js/modules/es6.regexp.flags"),require("core-js/modules/es6.regexp.match"),require("core-js/modules/es6.regexp.replace"),require("core-js/modules/es6.regexp.split"),require("core-js/modules/es6.regexp.search"),require("core-js/modules/es6.regexp.to-string"),require("core-js/modules/es6.set"),require("core-js/modules/es6.symbol"),require("core-js/modules/es7.symbol.async-iterator"),require("core-js/modules/es6.string.anchor"),require("core-js/modules/es6.string.big"),require("core-js/modules/es6.string.blink"),require("core-js/modules/es6.string.bold"),require("core-js/modules/es6.string.code-point-at"),require("core-js/modules/es6.string.ends-with"),require("core-js/modules/es6.string.fixed"),require("core-js/modules/es6.string.fontcolor"),require("core-js/modules/es6.string.fontsize"),require("core-js/modules/es6.string.from-code-point"),require("core-js/modules/es6.string.includes"),require("core-js/modules/es6.string.italics"),require("core-js/modules/es6.string.iterator"),require("core-js/modules/es6.string.link"),require("core-js/modules/es7.string.pad-start"),require("core-js/modules/es7.string.pad-end"),require("core-js/modules/es6.string.raw"),require("core-js/modules/es6.string.repeat"),require("core-js/modules/es6.string.small"),require("core-js/modules/es6.string.starts-with"),require("core-js/modules/es6.string.strike"),require("core-js/modules/es6.string.sub"),require("core-js/modules/es6.string.sup"),require("core-js/modules/es7.string.trim-left"),require("core-js/modules/es7.string.trim-right"),require("core-js/modules/es6.typed.array-buffer"),require("core-js/modules/es6.typed.int8-array"),require("core-js/modules/es6.typed.uint8-array"),require("core-js/modules/es6.typed.uint8-clamped-array"),require("core-js/modules/es6.typed.int16-array"),require("core-js/modules/es6.typed.uint16-array"),require("core-js/modules/es6.typed.int32-array"),require("core-js/modules/es6.typed.uint32-array"),require("core-js/modules/es6.typed.float32-array"),require("core-js/modules/es6.typed.float64-array"),require("core-js/modules/es6.weak-map"),require("core-js/modules/es6.weak-set"),require("core-js/modules/web.timers"),require("core-js/modules/web.immediate"),require("core-js/modules/web.dom.iterable"),require("regenerator-runtime/runtime");var e,r,s,o,t,i,u,n,a=q(require("stats.js/src/Stats")),d=f(require("dat.gui")),c=f(require("three")),l=require("three/examples/jsm/controls/OrbitControls.js"),m=require("three/examples/jsm/utils/BufferGeometryUtils.js"),j=require("../src/index.js");function p(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return p=function(){return e},e}function f(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=p();if(r&&r.has(e))return r.get(e);var s={},o=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var t in e)if(Object.prototype.hasOwnProperty.call(e,t)){var i=o?Object.getOwnPropertyDescriptor(e,t):null;i&&(i.get||i.set)?Object.defineProperty(s,t,i):s[t]=e[t]}return s.default=e,r&&r.set(e,s),s}function q(e){return e&&e.__esModule?e:{default:e}}c.Mesh.prototype.raycast=j.acceleratedRaycast,c.BufferGeometry.prototype.computeBoundsTree=j.computeBoundsTree,c.BufferGeometry.prototype.disposeBoundsTree=j.disposeBoundsTree;var y,g=new c.Vector3(0,0,1),h=new c.Vector2,w=new c.Vector2,b=!1,v=!1,x={size:.1,clayBrush:!0,intensity:.002,flatShading:!1,depth:10,displayHelper:!1};function M(){i&&(i.geometry.dispose(),i.material.dispose(),r.remove(i)),y||(y=(new c.TextureLoader).load("../textures/skinHazardousarts2.jpg"));var e=new c.IcosahedronBufferGeometry(1,100);e.deleteAttribute("uv"),(e=m.BufferGeometryUtils.mergeVertices(e)).computeBoundsTree(),e.attributes.position.setUsage(c.DynamicDrawUsage),e.attributes.normal.setUsage(c.DynamicDrawUsage),(i=new c.Mesh(e,new c.MeshMatcapMaterial({flatShading:x.flatShading,matcap:y}))).material.matcap.encoding=c.sRGBEncoding,r.add(i),n&&n.update()}function B(){(o=new c.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),o.setSize(window.innerWidth,window.innerHeight),o.setClearColor(1251612,1),o.gammaOutput=!0,document.body.appendChild(o.domElement),(r=new c.Scene).fog=new c.Fog(1251612,20,60);var m=new c.DirectionalLight(16777215,.5);m.position.set(1,1,1),r.add(m),r.add(new c.AmbientLight(16777215,.4)),M(),(n=new j.MeshBVHVisualizer(i,x.depth)).visible=x.displayHelper,r.add(n);for(var p=[new c.Vector3,new c.Vector3(0,0,1)],f=0;f<50;f++){var q=f+1,y=Math.sin(2*Math.PI*f/50),g=Math.cos(2*Math.PI*f/50),w=Math.sin(2*Math.PI*q/50),v=Math.cos(2*Math.PI*q/50);p.push(new c.Vector3(y,g,0),new c.Vector3(w,v,0))}(u=new c.LineSegments).geometry.setFromPoints(p),u.material.color.set(16750592),r.add(u),(s=new c.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(3,3,3),s.far=100,s.updateProjectionMatrix(),(t=new l.OrbitControls(s,o.domElement)).minDistance=1.5,e=new a.default,document.body.appendChild(e.dom);var B=new d.GUI,z=B.addFolder("Sculpting");z.add(x,"clayBrush"),z.add(x,"size").min(.05).max(.25).step(.01),z.add(x,"intensity").min(-.01).max(.01).step(.001),z.add(x,"flatShading").onChange(function(e){i.material.flatShading=e,i.material.needsUpdate=!0}),z.open();var E=B.addFolder("BVH Helper");E.add(x,"depth").min(1).max(20).step(1).onChange(function(e){n.depth=parseFloat(e),n.update()}),E.add(x,"displayHelper").onChange(function(e){n.visible=e}),E.open(),B.add({reset:M},"reset"),B.add({rebuildBVH:function(){i.geometry.computeBoundsTree(),n.update()}},"rebuildBVH"),B.open(),t.addEventListener("start",function(){this.active=!0}),t.addEventListener("end",function(){this.active=!1}),window.addEventListener("resize",function(){s.aspect=window.innerWidth/window.innerHeight,s.updateProjectionMatrix(),o.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("mousemove",function(e){h.x=e.clientX/window.innerWidth*2-1,h.y=-e.clientY/window.innerHeight*2+1}),window.addEventListener("mousedown",function(e){b=Boolean(1&e.buttons)}),window.addEventListener("mouseup",function(e){b=Boolean(1&e.buttons)}),window.addEventListener("contextmenu",function(e){e.preventDefault()}),window.addEventListener("wheel",function(e){var r=e.deltaY;1===e.deltaMode&&(r*=40),2===e.deltaMode&&(r*=40),x.size+=5e-4*r,x.size=Math.max(Math.min(x.size,.25),.05),B.updateDisplay()})}function z(){if(requestAnimationFrame(z),e.begin(),t.active)u.visible=!1;else{var a=new c.Raycaster;a.setFromCamera(h,s),a.firstHitOnly=!0;var d=a.intersectObject(i,!0)[0];if(d){u.visible=!0,u.scale.set(x.size,x.size,.1),u.position.copy(d.point),u.quaternion.setFromUnitVectors(g,d.face.normal),t.enabled=!1;var l=new c.Matrix4;l.copy(i.matrixWorld).invert();var m=new c.Sphere;m.center.copy(d.point).applyMatrix4(l),m.radius=x.size;var p=[],f=new c.Vector3,q=new c.Vector3,y=new c.Vector3;i.geometry.boundsTree.shapecast(i,function(e){var r=m.intersectsBox(e),s=e.min,o=e.max;if(r){for(var t=0;t<=1;t++)for(var i=0;i<=1;i++)for(var u=0;u<=1;u++)if(f.set(0===t?s.x:o.x,0===i?s.y:o.y,0===u?s.z:o.z),!m.containsPoint(f))return j.INTERSECTED;return j.CONTAINED}return r?j.INTERSECTED:j.NOT_INTERSECTED},function(e,r,s,o,t){return(t||e.intersectsSphere(m))&&p.push(r,s,o),!1});var M=i.geometry.index,B=i.geometry.attributes.position,E=i.geometry.attributes.normal,T=new Set(p);q.copy(d.point).applyMatrix4(l),T.forEach(function(e){var r=M.getX(e);f.fromBufferAttribute(B,r),f.distanceTo(q)>x.size||(f.fromBufferAttribute(E,r),y.add(f))}),y.normalize(),u.quaternion.setFromUnitVectors(g,y);var V=(h.x-w.x)*window.innerWidth*window.devicePixelRatio,P=(h.y-w.y)*window.innerHeight*window.devicePixelRatio,S=Math.sqrt(V*V+P*P);if(b||v){if(S>50*x.size){var H={};if(T.forEach(function(e){var r=M.getX(e);f.fromBufferAttribute(B,r);var s=f.distanceTo(q);if(!(s>x.size)){var o=1-s/x.size;o*=o,x.clayBrush?o=Math.min(o,.1):o*=.5,f.addScaledVector(y,o*x.intensity),B.setXYZ(r,f.x,f.y,f.z);var t=H[r];t||(t=H[r]=[]),t.push(~~(e/3))}}),p.length){var C=new c.Triangle;for(var O in H){f.set(0,0,0);var D=H[O];for(var L in D){var k=3*D[L];C.a.fromBufferAttribute(B,M.getX(k+0)),C.b.fromBufferAttribute(B,M.getX(k+1)),C.c.fromBufferAttribute(B,M.getX(k+2)),C.getNormal(q),f.add(q)}f.normalize(),E.setXYZ(O,f.x,f.y,f.z)}B.needsUpdate=!0,E.needsUpdate=!0,i.geometry.boundsTree.refit(i.geometry),n.update()}w.copy(h)}}else w.copy(h)}else t.enabled=!0,u.visible=!1,w.copy(h)}v=b,o.render(r,s),e.end()}B(),z();
+},{"core-js/modules/es6.array.copy-within":"tWTB","core-js/modules/es6.array.fill":"hUQ6","core-js/modules/es6.array.find":"Qppk","core-js/modules/es6.array.find-index":"sVmK","core-js/modules/es7.array.flat-map":"I8vV","core-js/modules/es6.array.from":"RRcs","core-js/modules/es7.array.includes":"TLss","core-js/modules/es6.array.iterator":"wVEN","core-js/modules/es6.array.of":"RB6b","core-js/modules/es6.array.sort":"nrVf","core-js/modules/es6.array.species":"smn3","core-js/modules/es6.date.to-json":"Gj6n","core-js/modules/es6.date.to-primitive":"jQnQ","core-js/modules/es6.function.has-instance":"a7bX","core-js/modules/es6.function.name":"N3yi","core-js/modules/es6.map":"ioKM","core-js/modules/es6.math.acosh":"py3M","core-js/modules/es6.math.asinh":"ob11","core-js/modules/es6.math.atanh":"iUik","core-js/modules/es6.math.cbrt":"YRuK","core-js/modules/es6.math.clz32":"R2Qc","core-js/modules/es6.math.cosh":"nEse","core-js/modules/es6.math.expm1":"AmoX","core-js/modules/es6.math.fround":"vmlq","core-js/modules/es6.math.hypot":"kLut","core-js/modules/es6.math.imul":"A8J8","core-js/modules/es6.math.log1p":"qtpC","core-js/modules/es6.math.log10":"VUW8","core-js/modules/es6.math.log2":"Jo9J","core-js/modules/es6.math.sign":"mZl9","core-js/modules/es6.math.sinh":"m0zb","core-js/modules/es6.math.tanh":"Fnqw","core-js/modules/es6.math.trunc":"tiOR","core-js/modules/es6.number.constructor":"kRGG","core-js/modules/es6.number.epsilon":"DzYy","core-js/modules/es6.number.is-finite":"FuY7","core-js/modules/es6.number.is-integer":"pwRL","core-js/modules/es6.number.is-nan":"SsgJ","core-js/modules/es6.number.is-safe-integer":"qVIE","core-js/modules/es6.number.max-safe-integer":"shx2","core-js/modules/es6.number.min-safe-integer":"ifBH","core-js/modules/es6.number.parse-float":"yjyf","core-js/modules/es6.number.parse-int":"Guno","core-js/modules/es6.object.assign":"K3Jy","core-js/modules/es7.object.define-getter":"guoQ","core-js/modules/es7.object.define-setter":"HMp9","core-js/modules/es7.object.entries":"gxEP","core-js/modules/es6.object.freeze":"EO7q","core-js/modules/es6.object.get-own-property-descriptor":"nIty","core-js/modules/es7.object.get-own-property-descriptors":"BQD8","core-js/modules/es6.object.get-own-property-names":"i23Y","core-js/modules/es6.object.get-prototype-of":"ud3u","core-js/modules/es7.object.lookup-getter":"HB2g","core-js/modules/es7.object.lookup-setter":"QF5J","core-js/modules/es6.object.prevent-extensions":"llMc","core-js/modules/es6.object.to-string":"zTK3","core-js/modules/es6.object.is":"MlqR","core-js/modules/es6.object.is-frozen":"Z1rp","core-js/modules/es6.object.is-sealed":"Fckj","core-js/modules/es6.object.is-extensible":"EYbC","core-js/modules/es6.object.keys":"m9aB","core-js/modules/es6.object.seal":"GYFR","core-js/modules/es6.object.set-prototype-of":"JGjq","core-js/modules/es7.object.values":"Ltmz","core-js/modules/es6.promise":"Pjta","core-js/modules/es7.promise.finally":"l1j0","core-js/modules/es6.reflect.apply":"F0Xu","core-js/modules/es6.reflect.construct":"JlFO","core-js/modules/es6.reflect.define-property":"S841","core-js/modules/es6.reflect.delete-property":"JRlJ","core-js/modules/es6.reflect.get":"kv8Z","core-js/modules/es6.reflect.get-own-property-descriptor":"zj1X","core-js/modules/es6.reflect.get-prototype-of":"d0aC","core-js/modules/es6.reflect.has":"OWTq","core-js/modules/es6.reflect.is-extensible":"deHu","core-js/modules/es6.reflect.own-keys":"e6SV","core-js/modules/es6.reflect.prevent-extensions":"BmyK","core-js/modules/es6.reflect.set":"K46i","core-js/modules/es6.reflect.set-prototype-of":"L5z5","core-js/modules/es6.regexp.constructor":"BenF","core-js/modules/es6.regexp.flags":"pDhD","core-js/modules/es6.regexp.match":"RTfC","core-js/modules/es6.regexp.replace":"KGao","core-js/modules/es6.regexp.split":"aOHf","core-js/modules/es6.regexp.search":"zOab","core-js/modules/es6.regexp.to-string":"iflU","core-js/modules/es6.set":"coyu","core-js/modules/es6.symbol":"uVn9","core-js/modules/es7.symbol.async-iterator":"DlMC","core-js/modules/es6.string.anchor":"USd7","core-js/modules/es6.string.big":"c1D0","core-js/modules/es6.string.blink":"Ee86","core-js/modules/es6.string.bold":"ry39","core-js/modules/es6.string.code-point-at":"zR9y","core-js/modules/es6.string.ends-with":"zRn7","core-js/modules/es6.string.fixed":"AHLq","core-js/modules/es6.string.fontcolor":"H7V0","core-js/modules/es6.string.fontsize":"Dx83","core-js/modules/es6.string.from-code-point":"xSM3","core-js/modules/es6.string.includes":"fH7p","core-js/modules/es6.string.italics":"fRhg","core-js/modules/es6.string.iterator":"tbKg","core-js/modules/es6.string.link":"Aaz0","core-js/modules/es7.string.pad-start":"SWNE","core-js/modules/es7.string.pad-end":"n20m","core-js/modules/es6.string.raw":"t29D","core-js/modules/es6.string.repeat":"C85R","core-js/modules/es6.string.small":"qBr3","core-js/modules/es6.string.starts-with":"w2SA","core-js/modules/es6.string.strike":"eNyu","core-js/modules/es6.string.sub":"BVLK","core-js/modules/es6.string.sup":"kMsL","core-js/modules/es7.string.trim-left":"ppxd","core-js/modules/es7.string.trim-right":"hxx1","core-js/modules/es6.typed.array-buffer":"NJ0a","core-js/modules/es6.typed.int8-array":"wqMZ","core-js/modules/es6.typed.uint8-array":"QTtY","core-js/modules/es6.typed.uint8-clamped-array":"Kqgs","core-js/modules/es6.typed.int16-array":"fEGw","core-js/modules/es6.typed.uint16-array":"xyd6","core-js/modules/es6.typed.int32-array":"hIko","core-js/modules/es6.typed.uint32-array":"tNPN","core-js/modules/es6.typed.float32-array":"wisA","core-js/modules/es6.typed.float64-array":"mbTX","core-js/modules/es6.weak-map":"D6DP","core-js/modules/es6.weak-set":"bRUR","core-js/modules/web.timers":"OTsy","core-js/modules/web.immediate":"hZLH","core-js/modules/web.dom.iterable":"v6Aj","regenerator-runtime/runtime":"QVnC","stats.js/src/Stats":"RDO9","dat.gui":"KkZG","three":"dKqR","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/utils/BufferGeometryUtils.js":"Jcll","../src/index.js":"uBxZ"}]},{},["ODOB"], null)
\ No newline at end of file
diff --git a/example/bundle/sculpt.html b/example/bundle/sculpt.html
new file mode 100644
index 000000000..9bcb1365d
--- /dev/null
+++ b/example/bundle/sculpt.html
@@ -0,0 +1 @@
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#info{position:absolute;top:0;width:100%;color:#fff;font-family:monospace;text-align:center;padding:5px 0}a{color:#eee}</style></head><body> <div id="info"> Inspired by and Matcap texture from <a href="https://github.com/stephomi/sculptgl">SculptGL</a>. </div> <script src="sculpt.493e9c78.js"></script> </body></html>
\ No newline at end of file

From 781d4cebb58dffe3e17651766173f504702d4673 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 00:01:00 -0800
Subject: [PATCH 052/139] title

---
 example/sculpt.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/example/sculpt.html b/example/sculpt.html
index 67183caa3..1d5f7849d 100644
--- a/example/sculpt.html
+++ b/example/sculpt.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
 <head>
-    <title>THREE.js BVH Geometry Collect Triangles</title>
+    <title>THREE.js BVH Geometry Sculpting</title>
     <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
 
     <style type="text/css">

From e6645e836d86da1f473b48207c4b613f9855929e Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 09:31:05 -0800
Subject: [PATCH 053/139]  Improve sculpt brush

---
 example/sculpt.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index fea0199da..2082db384 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -369,7 +369,7 @@ function render() {
 
 				lastMouse.copy( mouse );
 
-			} else if ( dist > params.size * 50 ) {
+			} else if ( dist > params.size * 200 / hit.distance ) {
 
 				const indexToTriangles = {};
 				indexSet.forEach( i => {

From c70ca7f2ab44223575e92ca33cae6165043052e3 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 09:40:29 -0800
Subject: [PATCH 054/139] improve brush

---
 example/sculpt.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 2082db384..0766208e7 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -29,7 +29,8 @@ let matcap;
 const params = {
 	size: 0.1,
 	clayBrush: true,
-	intensity: 0.002,
+	intensity: 0.004,
+	invert: false,
 	flatShading: false,
 	depth: 10,
 	displayHelper: false,
@@ -71,6 +72,7 @@ function reset() {
 
 	if ( bvhHelper ) {
 
+		bvhHelper.mesh = targetMesh;
 		bvhHelper.update();
 
 	}
@@ -146,7 +148,8 @@ function init() {
 	const sculptFolder = gui.addFolder( 'Sculpting' );
 	sculptFolder.add( params, 'clayBrush' );
 	sculptFolder.add( params, 'size' ).min( 0.05 ).max( 0.25 ).step( 0.01 );
-	sculptFolder.add( params, 'intensity' ).min( - 0.01 ).max( 0.01 ).step( 0.001 );
+	sculptFolder.add( params, 'intensity' ).min( 0.002 ).max( 0.01 ).step( 0.001 );
+	sculptFolder.add( params, 'invert' );
 	sculptFolder.add( params, 'flatShading' ).onChange( value => {
 
 		targetMesh.material.flatShading = value;
@@ -396,6 +399,12 @@ function render() {
 
 					}
 
+					if ( params.invert ) {
+
+						intensity *= - 1;
+
+					}
+
 					tempVec.addScaledVector( normal, intensity * params.intensity );
 					posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 

From 6e30e1e1e519c4b00eebd9216a51a225051896a9 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 09:40:40 -0800
Subject: [PATCH 055/139] Improve bvh visualizer

---
 src/MeshBVHVisualizer.js | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/src/MeshBVHVisualizer.js b/src/MeshBVHVisualizer.js
index bf1569939..118c69b1f 100644
--- a/src/MeshBVHVisualizer.js
+++ b/src/MeshBVHVisualizer.js
@@ -12,9 +12,7 @@ class MeshBVHRootVisualizer extends Group {
 		super( 'MeshBVHRootVisualizer' );
 
 		this.depth = depth;
-		this._oldDepth = - 1;
 		this.mesh = mesh;
-		this._boundsTree = null;
 		this._group = group;
 
 		this.update();
@@ -23,13 +21,11 @@ class MeshBVHRootVisualizer extends Group {
 
 	update() {
 
-		this._oldDepth = this.depth;
-		this._boundsTree = this.mesh.geometry.boundsTree;
-
+		const boundsTree = this.mesh.geometry.boundsTree;
 		let requiredChildren = 0;
-		if ( this._boundsTree ) {
+		if ( boundsTree ) {
 
-			this._boundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
+			boundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
 
 				let isTerminal = isLeaf || countOrIsUnfinished;
 
@@ -107,6 +103,7 @@ class MeshBVHVisualizer extends Group {
 
 				let root = this._roots[ i ];
 				root.depth = this.depth;
+				root.mesh = this.mesh;
 				root.update();
 
 			}

From fc95b9a7723fa8ae9883a4d31d3dc151c33f5932 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 12:01:20 -0800
Subject: [PATCH 056/139] Update CHANGELOG.md

---
 CHANGELOG.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e4923f46..921905abd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Use `type: module` in package.json to enable use of es6 modules in node.
 - Remove ability to generate an unpacked BVH.
 
+### Fixed
+- `MeshBVHVisualizer` not using the new geometry BVH if one was generated.
+- `MeshBVHVisualizer` not using the new mesh if it was set.
+
 ## [0.3.6] - 2021-03-03
 ### Fixed
 - Incorrect face index would be returned from intersection (related to three.js bug fixed in v0.126.1).

From 0e610c4d85204af3119de3dc160c68a86719ca58 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 16:30:39 -0800
Subject: [PATCH 057/139] add cast distance check

---
 example/sculpt.js | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 0766208e7..9da292c3a 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -24,6 +24,7 @@ let targetMesh, brush, bvhHelper;
 let normalZ = new THREE.Vector3( 0, 0, 1 );
 let mouse = new THREE.Vector2(), lastMouse = new THREE.Vector2();
 let mouseState = false, lastMouseState = false;
+let lastCastPose = new THREE.Vector3();
 let matcap;
 
 const params = {
@@ -261,6 +262,7 @@ function render() {
 	if ( controls.active ) {
 
 		brush.visible = false;
+		lastCastPose.setScalar( Infinity );
 
 	} else {
 
@@ -364,15 +366,19 @@ function render() {
 			normal.normalize();
 			brush.quaternion.setFromUnitVectors( normalZ, normal );
 
-			const dx = ( mouse.x - lastMouse.x ) * window.innerWidth * window.devicePixelRatio;
-			const dy = ( mouse.y - lastMouse.y ) * window.innerHeight * window.devicePixelRatio;
-			const dist = Math.sqrt( dx * dx + dy * dy );
+			const mdx = ( mouse.x - lastMouse.x ) * window.innerWidth * window.devicePixelRatio;
+			const mdy = ( mouse.y - lastMouse.y ) * window.innerHeight * window.devicePixelRatio;
+			const mdist = Math.sqrt( mdx * mdx + mdy * mdy );
+
+			const castDist = hit.point.distanceTo( lastCastPose );
 
 			if ( ! ( mouseState || lastMouseState ) ) {
 
 				lastMouse.copy( mouse );
 
-			} else if ( dist > params.size * 200 / hit.distance ) {
+			} else if ( mdist > params.size * 200 / hit.distance && castDist > params.size * 0.15 ) {
+
+				lastCastPose.copy( hit.point );
 
 				const indexToTriangles = {};
 				indexSet.forEach( i => {
@@ -462,6 +468,7 @@ function render() {
 			controls.enabled = true;
 			brush.visible = false;
 			lastMouse.copy( mouse );
+			lastCastPose.setScalar( Infinity );
 
 		}
 

From bd1f9efc0ef5c8445c699718a52f1e2396c0e674 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 17:00:40 -0800
Subject: [PATCH 058/139] Multiple brush steps

---
 example/sculpt.js | 310 ++++++++++++++++++++++++++--------------------
 1 file changed, 176 insertions(+), 134 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 9da292c3a..cc7d28406 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -30,7 +30,8 @@ let matcap;
 const params = {
 	size: 0.1,
 	clayBrush: true,
-	intensity: 0.004,
+	intensity: 50,
+	maxSteps: 15,
 	invert: false,
 	flatShading: false,
 	depth: 10,
@@ -128,7 +129,7 @@ function init() {
 	}
 	brush = new THREE.LineSegments();
 	brush.geometry.setFromPoints( brushSegments );
-	brush.material.color.set( 0xff9800 );
+	brush.material.color.set( 0xfb8c00 );
 	scene.add( brush );
 
 	// camera setup
@@ -148,8 +149,9 @@ function init() {
 
 	const sculptFolder = gui.addFolder( 'Sculpting' );
 	sculptFolder.add( params, 'clayBrush' );
-	sculptFolder.add( params, 'size' ).min( 0.05 ).max( 0.25 ).step( 0.01 );
-	sculptFolder.add( params, 'intensity' ).min( 0.002 ).max( 0.01 ).step( 0.001 );
+	sculptFolder.add( params, 'size' ).min( 0.025 ).max( 0.25 ).step( 0.005 );
+	sculptFolder.add( params, 'intensity' ).min( 1 ).max( 100 ).step( 1 );
+	sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
 	sculptFolder.add( params, 'invert' );
 	sculptFolder.add( params, 'flatShading' ).onChange( value => {
 
@@ -245,7 +247,7 @@ function init() {
 		}
 
 		params.size += delta * 0.0005;
-		params.size = Math.max( Math.min( params.size, 0.25 ), 0.05 );
+		params.size = Math.max( Math.min( params.size, 0.25 ), 0.025 );
 
 		gui.updateDisplay();
 
@@ -253,213 +255,253 @@ function init() {
 
 }
 
-function render() {
+function performStroke( point, brushOnly = false ) {
 
-	requestAnimationFrame( render );
+	const inverseMatrix = new THREE.Matrix4();
+	inverseMatrix.copy( targetMesh.matrixWorld ).invert();
 
-	stats.begin();
+	const sphere = new THREE.Sphere();
+	sphere.center.copy( point ).applyMatrix4( inverseMatrix );
+	sphere.radius = params.size;
 
-	if ( controls.active ) {
+	const indices = [];
+	const tempVec = new THREE.Vector3();
+	const tempVec2 = new THREE.Vector3();
+	const normal = new THREE.Vector3();
+	const bvh = targetMesh.geometry.boundsTree;
+	bvh.shapecast(
+		targetMesh,
+		box => {
 
-		brush.visible = false;
-		lastCastPose.setScalar( Infinity );
+			const intersects = sphere.intersectsBox( box );
+			const { min, max } = box;
+			if ( intersects ) {
 
-	} else {
+				for ( let x = 0; x <= 1; x ++ ) {
 
-		const raycaster = new THREE.Raycaster();
-		raycaster.setFromCamera( mouse, camera );
-		raycaster.firstHitOnly = true;
+					for ( let y = 0; y <= 1; y ++ ) {
 
-		const hit = raycaster.intersectObject( targetMesh, true )[ 0 ];
-		if ( hit ) {
+						for ( let z = 0; z <= 1; z ++ ) {
 
-			brush.visible = true;
-			brush.scale.set( params.size, params.size, 0.1 );
-			brush.position.copy( hit.point );
-			brush.quaternion.setFromUnitVectors( normalZ, hit.face.normal );
-			controls.enabled = false;
+							tempVec.set(
+								x === 0 ? min.x : max.x,
+								y === 0 ? min.y : max.y,
+								z === 0 ? min.z : max.z
+							);
+							if ( ! sphere.containsPoint( tempVec ) ) {
 
+								return INTERSECTED;
 
-			const inverseMatrix = new THREE.Matrix4();
-			inverseMatrix.copy( targetMesh.matrixWorld ).invert();
+							}
 
-			const sphere = new THREE.Sphere();
-			sphere.center.copy( hit.point ).applyMatrix4( inverseMatrix );
-			sphere.radius = params.size;
+						}
 
-			const indices = [];
-			const tempVec = new THREE.Vector3();
-			const tempVec2 = new THREE.Vector3();
-			const normal = new THREE.Vector3();
-			const bvh = targetMesh.geometry.boundsTree;
-			bvh.shapecast(
-				targetMesh,
-				box => {
+					}
 
-					const intersects = sphere.intersectsBox( box );
-					const { min, max } = box;
-					if ( intersects ) {
+				}
 
-						for ( let x = 0; x <= 1; x ++ ) {
+				return CONTAINED;
 
-							for ( let y = 0; y <= 1; y ++ ) {
+			}
 
-								for ( let z = 0; z <= 1; z ++ ) {
+			return intersects ? INTERSECTED : NOT_INTERSECTED;
 
-									tempVec.set(
-										x === 0 ? min.x : max.x,
-										y === 0 ? min.y : max.y,
-										z === 0 ? min.z : max.z
-									);
-									if ( ! sphere.containsPoint( tempVec ) ) {
+		},
+		( tri, a, b, c, contained ) => {
 
-										return INTERSECTED;
+			if ( contained || tri.intersectsSphere( sphere ) ) {
 
-									}
+				indices.push( a, b, c );
 
-								}
+			}
 
-							}
+			return false;
 
-						}
+		}
+	);
+	const indexAttr = targetMesh.geometry.index;
+	const posAttr = targetMesh.geometry.attributes.position;
+	const normalAttr = targetMesh.geometry.attributes.normal;
+	const indexSet = new Set( indices );
+	tempVec2.copy( point ).applyMatrix4( inverseMatrix );
+	indexSet.forEach( i => {
 
-						return CONTAINED;
+		const index = indexAttr.getX( i );
+		tempVec.fromBufferAttribute( posAttr, index );
 
-					}
+		const dist = tempVec.distanceTo( tempVec2 );
+		if ( dist > params.size ) {
 
-					return intersects ? INTERSECTED : NOT_INTERSECTED;
+			return;
 
-				},
-				( tri, a, b, c, contained ) => {
+		}
 
-					if ( contained || tri.intersectsSphere( sphere ) ) {
+		tempVec.fromBufferAttribute( normalAttr, index );
+		normal.add( tempVec );
 
-						indices.push( a, b, c );
+	} );
+	normal.normalize();
+	brush.quaternion.setFromUnitVectors( normalZ, normal );
 
-					}
+	if ( brushOnly ) {
 
-					return false;
+		return;
 
-				}
-			);
-			const indexAttr = targetMesh.geometry.index;
-			const posAttr = targetMesh.geometry.attributes.position;
-			const normalAttr = targetMesh.geometry.attributes.normal;
-			const indexSet = new Set( indices );
-			tempVec2.copy( hit.point ).applyMatrix4( inverseMatrix );
-			indexSet.forEach( i => {
+	}
 
-				const index = indexAttr.getX( i );
-				tempVec.fromBufferAttribute( posAttr, index );
+	// perform vertex adjustment
 
-				const dist = tempVec.distanceTo( tempVec2 );
-				if ( dist > params.size ) {
+	const indexToTriangles = {};
+	indexSet.forEach( i => {
 
-					return;
+		const index = indexAttr.getX( i );
+		tempVec.fromBufferAttribute( posAttr, index );
 
-				}
+		const dist = tempVec.distanceTo( tempVec2 );
+		if ( dist > params.size ) {
 
-				tempVec.fromBufferAttribute( normalAttr, index );
-				normal.add( tempVec );
+			return;
 
-			} );
-			normal.normalize();
-			brush.quaternion.setFromUnitVectors( normalZ, normal );
+		}
 
-			const mdx = ( mouse.x - lastMouse.x ) * window.innerWidth * window.devicePixelRatio;
-			const mdy = ( mouse.y - lastMouse.y ) * window.innerHeight * window.devicePixelRatio;
-			const mdist = Math.sqrt( mdx * mdx + mdy * mdy );
+		let intensity = 1.0 - ( dist / params.size );
+		intensity *= intensity;
+		if ( params.clayBrush ) {
 
-			const castDist = hit.point.distanceTo( lastCastPose );
+			intensity = Math.min( intensity, 0.1 );
 
-			if ( ! ( mouseState || lastMouseState ) ) {
+		} else {
 
-				lastMouse.copy( mouse );
+			intensity *= 0.5;
 
-			} else if ( mdist > params.size * 200 / hit.distance && castDist > params.size * 0.15 ) {
+		}
 
-				lastCastPose.copy( hit.point );
+		if ( params.invert ) {
 
-				const indexToTriangles = {};
-				indexSet.forEach( i => {
+			intensity *= - 1;
 
-					const index = indexAttr.getX( i );
-					tempVec.fromBufferAttribute( posAttr, index );
+		}
 
-					const dist = tempVec.distanceTo( tempVec2 );
-					if ( dist > params.size ) {
+		tempVec.addScaledVector( normal, intensity * params.intensity * 0.00005 );
+		posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 
-						return;
+		let arr = indexToTriangles[ index ];
+		if ( ! arr ) {
 
-					}
+			arr = indexToTriangles[ index ] = [];
 
-					let intensity = 1.0 - ( dist / params.size );
-					intensity *= intensity;
-					if ( params.clayBrush ) {
+		}
 
-						intensity = Math.min( intensity, 0.1 );
+		arr.push( ~ ~ ( i / 3 ) );
 
-					} else {
+	} );
 
-						intensity *= 0.5;
+	if ( indices.length ) {
 
-					}
+		// TODO: this can be improved
+		const triangle = new THREE.Triangle();
+		for ( const index in indexToTriangles ) {
 
-					if ( params.invert ) {
+			tempVec.set( 0, 0, 0 );
 
-						intensity *= - 1;
+			const arr = indexToTriangles[ index ];
+			for ( const tri in arr ) {
 
-					}
+				const i3 = arr[ tri ] * 3;
+				triangle.a.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 0 ) );
+				triangle.b.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 1 ) );
+				triangle.c.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 2 ) );
 
-					tempVec.addScaledVector( normal, intensity * params.intensity );
-					posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
+				triangle.getNormal( tempVec2 );
+				tempVec.add( tempVec2 );
 
-					let arr = indexToTriangles[ index ];
-					if ( ! arr ) {
+			}
 
-						arr = indexToTriangles[ index ] = [];
+			tempVec.normalize();
+			normalAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 
-					}
+		}
 
-					arr.push( ~ ~ ( i / 3 ) );
+		posAttr.needsUpdate = true;
+		normalAttr.needsUpdate = true;
 
-				} );
+	}
 
-				if ( indices.length ) {
+}
 
-					// TODO: this can be improved
-					const triangle = new THREE.Triangle();
-					for ( const index in indexToTriangles ) {
+function render() {
 
-						tempVec.set( 0, 0, 0 );
+	requestAnimationFrame( render );
 
-						const arr = indexToTriangles[ index ];
-						for ( const tri in arr ) {
+	stats.begin();
 
-							const i3 = arr[ tri ] * 3;
-							triangle.a.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 0 ) );
-							triangle.b.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 1 ) );
-							triangle.c.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 2 ) );
+	if ( controls.active ) {
 
-							triangle.getNormal( tempVec2 );
-							tempVec.add( tempVec2 );
+		brush.visible = false;
+		lastCastPose.setScalar( Infinity );
 
-						}
+	} else {
+
+		const raycaster = new THREE.Raycaster();
+		raycaster.setFromCamera( mouse, camera );
+		raycaster.firstHitOnly = true;
+
+		const hit = raycaster.intersectObject( targetMesh, true )[ 0 ];
+		if ( hit ) {
+
+			brush.visible = true;
+			brush.scale.set( params.size, params.size, 0.1 );
+			brush.position.copy( hit.point );
+			brush.quaternion.setFromUnitVectors( normalZ, hit.face.normal );
+			controls.enabled = false;
+
+			if ( lastCastPose.x === Infinity ) {
+
+				lastCastPose.copy( hit.point );
+
+			}
+
+			const mdx = ( mouse.x - lastMouse.x ) * window.innerWidth * window.devicePixelRatio;
+			const mdy = ( mouse.y - lastMouse.y ) * window.innerHeight * window.devicePixelRatio;
+			let mdist = Math.sqrt( mdx * mdx + mdy * mdy );
+			let castDist = hit.point.distanceTo( lastCastPose );
+
+			if ( ! ( mouseState || lastMouseState ) ) {
 
-						tempVec.normalize();
-						normalAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
+				performStroke( hit.point, true );
+				lastMouse.copy( mouse );
+				lastCastPose.copy( hit.point );
+
+			} else {
+
+				const step = params.size * 0.15;
+				const percent = Math.max( step / castDist, 1 / params.maxSteps );
+				const mstep = mdist * percent;
+				let stepCount = 0;
+
+				while ( castDist > step && mdist > params.size * 200 / hit.distance ) {
+
+					lastMouse.lerp( mouse, percent );
+					lastCastPose.lerp( hit.point, percent );
+					castDist -= step;
+					mdist -= mstep;
+
+					performStroke( lastCastPose, false );
+					stepCount ++;
+					if ( stepCount > params.maxSteps ) {
+
+						break;
 
 					}
 
-					posAttr.needsUpdate = true;
-					normalAttr.needsUpdate = true;
+				}
+
+				if ( stepCount > 0 ) {
 
 					targetMesh.geometry.boundsTree.refit( targetMesh.geometry );
-
 					bvhHelper.update();
 
 				}
-				lastMouse.copy( mouse );
 
 			}
 

From 211a3536ae0b8a59a2c0f72daf98fbd19e0e9648 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 19:03:04 -0800
Subject: [PATCH 059/139] comments

---
 example/sculpt.js | 121 +++++++++++++++++++++++++++++-----------------
 1 file changed, 77 insertions(+), 44 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index cc7d28406..7ae8f89d0 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -34,12 +34,18 @@ const params = {
 	maxSteps: 15,
 	invert: false,
 	flatShading: false,
+
 	depth: 10,
 	displayHelper: false,
 };
 
+init();
+render();
+
+// reset the sculpt mesh
 function reset() {
 
+	// dispose of the mesh if it exists
 	if ( targetMesh ) {
 
 		targetMesh.geometry.dispose();
@@ -48,19 +54,20 @@ function reset() {
 
 	}
 
+	// load the mat cap material if it hasn't been made yet
 	if ( ! matcap ) {
 
 		matcap = new THREE.TextureLoader().load( '../textures/skinHazardousarts2.jpg' );
 
 	}
 
+	// merge the vertices because they're not already merged
 	let geometry = new THREE.IcosahedronBufferGeometry( 1, 100 );
 	geometry.deleteAttribute( 'uv' );
 	geometry = BufferGeometryUtils.mergeVertices( geometry );
-
-	geometry.computeBoundsTree();
 	geometry.attributes.position.setUsage( THREE.DynamicDrawUsage );
 	geometry.attributes.normal.setUsage( THREE.DynamicDrawUsage );
+	geometry.computeBoundsTree();
 
 	targetMesh = new THREE.Mesh(
 		geometry,
@@ -72,13 +79,18 @@ function reset() {
 	targetMesh.material.matcap.encoding = THREE.sRGBEncoding;
 	scene.add( targetMesh );
 
-	if ( bvhHelper ) {
+	// initialize bvh helper
+	if ( ! bvhHelper ) {
 
-		bvhHelper.mesh = targetMesh;
-		bvhHelper.update();
+		bvhHelper = new MeshBVHVisualizer( targetMesh, params.depth );
+		bvhHelper.visible = params.displayHelper;
+		scene.add( bvhHelper );
 
 	}
 
+	bvhHelper.mesh = targetMesh;
+	bvhHelper.update();
+
 }
 
 function init() {
@@ -105,12 +117,7 @@ function init() {
 	// geometry setup
 	reset();
 
-	// initialize bvh helper
-	bvhHelper = new MeshBVHVisualizer( targetMesh, params.depth );
-	bvhHelper.visible = params.displayHelper;
-	scene.add( bvhHelper );
-
-	// initialize brush shape
+	// initialize brush cursor
 	const brushSegments = [ new THREE.Vector3(), new THREE.Vector3( 0, 0, 1 ) ];
 	for ( let i = 0; i < 50; i ++ ) {
 
@@ -255,6 +262,7 @@ function init() {
 
 }
 
+// Run the perform the brush movement
 function performStroke( point, brushOnly = false ) {
 
 	const inverseMatrix = new THREE.Matrix4();
@@ -264,7 +272,8 @@ function performStroke( point, brushOnly = false ) {
 	sphere.center.copy( point ).applyMatrix4( inverseMatrix );
 	sphere.radius = params.size;
 
-	const indices = [];
+	// Collect the intersected vertices
+	const indices = new Set();
 	const tempVec = new THREE.Vector3();
 	const tempVec2 = new THREE.Vector3();
 	const normal = new THREE.Vector3();
@@ -309,9 +318,31 @@ function performStroke( point, brushOnly = false ) {
 		},
 		( tri, a, b, c, contained ) => {
 
-			if ( contained || tri.intersectsSphere( sphere ) ) {
+			if ( contained ) {
+
+				indices.add( a );
+				indices.add( b );
+				indices.add( c );
+
+			} else {
+
+				if ( sphere.containsPoint( tri.a ) ) {
+
+					indices.add( a );
+
+				}
+
+				if ( sphere.containsPoint( tri.b ) ) {
+
+					indices.add( b );
+
+				}
+
+				if ( sphere.containsPoint( tri.c ) ) {
 
-				indices.push( a, b, c );
+					indices.add( c );
+
+				}
 
 			}
 
@@ -319,23 +350,15 @@ function performStroke( point, brushOnly = false ) {
 
 		}
 	);
+
+	// Compute the average normal at this point
 	const indexAttr = targetMesh.geometry.index;
 	const posAttr = targetMesh.geometry.attributes.position;
 	const normalAttr = targetMesh.geometry.attributes.normal;
-	const indexSet = new Set( indices );
 	tempVec2.copy( point ).applyMatrix4( inverseMatrix );
-	indexSet.forEach( i => {
+	indices.forEach( i => {
 
 		const index = indexAttr.getX( i );
-		tempVec.fromBufferAttribute( posAttr, index );
-
-		const dist = tempVec.distanceTo( tempVec2 );
-		if ( dist > params.size ) {
-
-			return;
-
-		}
-
 		tempVec.fromBufferAttribute( normalAttr, index );
 		normal.add( tempVec );
 
@@ -343,6 +366,7 @@ function performStroke( point, brushOnly = false ) {
 	normal.normalize();
 	brush.quaternion.setFromUnitVectors( normalZ, normal );
 
+	// Early out if we just want to adjust the brush
 	if ( brushOnly ) {
 
 		return;
@@ -350,20 +374,14 @@ function performStroke( point, brushOnly = false ) {
 	}
 
 	// perform vertex adjustment
-
 	const indexToTriangles = {};
-	indexSet.forEach( i => {
+	indices.forEach( i => {
 
 		const index = indexAttr.getX( i );
 		tempVec.fromBufferAttribute( posAttr, index );
 
+		// compute the offset intensity
 		const dist = tempVec.distanceTo( tempVec2 );
-		if ( dist > params.size ) {
-
-			return;
-
-		}
-
 		let intensity = 1.0 - ( dist / params.size );
 		intensity *= intensity;
 		if ( params.clayBrush ) {
@@ -382,9 +400,11 @@ function performStroke( point, brushOnly = false ) {
 
 		}
 
+		// offset the vertex
 		tempVec.addScaledVector( normal, intensity * params.intensity * 0.00005 );
 		posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 
+		// save all the triangles that are connected to this vertex
 		let arr = indexToTriangles[ index ];
 		if ( ! arr ) {
 
@@ -396,9 +416,13 @@ function performStroke( point, brushOnly = false ) {
 
 	} );
 
-	if ( indices.length ) {
+	// If we found vertices
+	if ( indices.size ) {
 
-		// TODO: this can be improved
+		// compute the new vertex normal
+		// TODO: this can be improved by computing the normal vertices in place in
+		// the buffer then normalizing them and avoiding recomputing the normal for the
+		// same triangles multiple times
 		const triangle = new THREE.Triangle();
 		for ( const index in indexToTriangles ) {
 
@@ -437,6 +461,7 @@ function render() {
 
 	if ( controls.active ) {
 
+		// If the controls are being used then don't perform the strokes
 		brush.visible = false;
 		lastCastPose.setScalar( Infinity );
 
@@ -447,6 +472,7 @@ function render() {
 		raycaster.firstHitOnly = true;
 
 		const hit = raycaster.intersectObject( targetMesh, true )[ 0 ];
+		// if we hit the target mesh
 		if ( hit ) {
 
 			brush.visible = true;
@@ -455,17 +481,15 @@ function render() {
 			brush.quaternion.setFromUnitVectors( normalZ, hit.face.normal );
 			controls.enabled = false;
 
+			// if the last cast pose was missed in the last frame then set it to
+			// the current point so we don't streak across the surface
 			if ( lastCastPose.x === Infinity ) {
 
 				lastCastPose.copy( hit.point );
 
 			}
 
-			const mdx = ( mouse.x - lastMouse.x ) * window.innerWidth * window.devicePixelRatio;
-			const mdy = ( mouse.y - lastMouse.y ) * window.innerHeight * window.devicePixelRatio;
-			let mdist = Math.sqrt( mdx * mdx + mdy * mdy );
-			let castDist = hit.point.distanceTo( lastCastPose );
-
+			// If the mouse isn't pressed don't perform the stroke
 			if ( ! ( mouseState || lastMouseState ) ) {
 
 				performStroke( hit.point, true );
@@ -474,11 +498,18 @@ function render() {
 
 			} else {
 
+				// compute the distance the mouse moved and that the cast point moved
+				const mdx = ( mouse.x - lastMouse.x ) * window.innerWidth * window.devicePixelRatio;
+				const mdy = ( mouse.y - lastMouse.y ) * window.innerHeight * window.devicePixelRatio;
+				let mdist = Math.sqrt( mdx * mdx + mdy * mdy );
+				let castDist = hit.point.distanceTo( lastCastPose );
+
 				const step = params.size * 0.15;
 				const percent = Math.max( step / castDist, 1 / params.maxSteps );
 				const mstep = mdist * percent;
 				let stepCount = 0;
 
+				// perform multiple iterations toward the current mouse pose for a consistent stroke
 				while ( castDist > step && mdist > params.size * 200 / hit.distance ) {
 
 					lastMouse.lerp( mouse, percent );
@@ -496,17 +527,23 @@ function render() {
 
 				}
 
+				// refit the bounds if we adjusted the mesh
 				if ( stepCount > 0 ) {
 
 					targetMesh.geometry.boundsTree.refit( targetMesh.geometry );
 					bvhHelper.update();
 
+				} else {
+
+					performStroke( hit.point, true );
+
 				}
 
 			}
 
 		} else {
 
+			// if we didn't hit
 			controls.enabled = true;
 			brush.visible = false;
 			lastMouse.copy( mouse );
@@ -522,7 +559,3 @@ function render() {
 	stats.end();
 
 }
-
-
-init();
-render();

From ef61af8c7bb4cd3811f0729ef041b5b04c94997d Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 19:10:22 -0800
Subject: [PATCH 060/139] update

---
 example/sculpt.js | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 7ae8f89d0..d3cac3084 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -384,22 +384,25 @@ function performStroke( point, brushOnly = false ) {
 		const dist = tempVec.distanceTo( tempVec2 );
 		let intensity = 1.0 - ( dist / params.size );
 		intensity *= intensity;
+
+		if ( params.invert ) {
+
+			intensity *= - 1;
+
+		}
+
 		if ( params.clayBrush ) {
 
 			intensity = Math.min( intensity, 0.1 );
 
+			// TODO: flatten along the plane defined by the offset normal and point
+
 		} else {
 
 			intensity *= 0.5;
 
 		}
 
-		if ( params.invert ) {
-
-			intensity *= - 1;
-
-		}
-
 		// offset the vertex
 		tempVec.addScaledVector( normal, intensity * params.intensity * 0.00005 );
 		posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );

From 7ac7810e49eafdb99f0df43ad9f80c6db471f3ca Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 19:21:27 -0800
Subject: [PATCH 061/139] Add LGTM classification

---
 lgtm.yml | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 lgtm.yml

diff --git a/lgtm.yml b/lgtm.yml
new file mode 100644
index 000000000..0c73913fd
--- /dev/null
+++ b/lgtm.yml
@@ -0,0 +1,5 @@
+path_classifiers:
+  template:
+    - "**/*.template.js"
+	generated:
+		- exclude: src/

From d6f9f83150de2dd07dc8d2c469b20f229a28ffe3 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 20:52:17 -0800
Subject: [PATCH 062/139] fix brushes

---
 example/sculpt.js | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index d3cac3084..8dc7217d7 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -29,7 +29,7 @@ let matcap;
 
 const params = {
 	size: 0.1,
-	clayBrush: true,
+	brush: 'clay',
 	intensity: 50,
 	maxSteps: 15,
 	invert: false,
@@ -155,7 +155,7 @@ function init() {
 	const gui = new dat.GUI();
 
 	const sculptFolder = gui.addFolder( 'Sculpting' );
-	sculptFolder.add( params, 'clayBrush' );
+	sculptFolder.add( params, 'brush', [ 'normal', 'clay', 'flatten' ] );
 	sculptFolder.add( params, 'size' ).min( 0.025 ).max( 0.25 ).step( 0.005 );
 	sculptFolder.add( params, 'intensity' ).min( 1 ).max( 100 ).step( 1 );
 	sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
@@ -374,6 +374,10 @@ function performStroke( point, brushOnly = false ) {
 	}
 
 	// perform vertex adjustment
+	const targetHeight = params.intensity * 0.000025;
+	const plane = new THREE.Plane();
+	plane.setFromNormalAndCoplanarPoint( normal, point );
+
 	const indexToTriangles = {};
 	indices.forEach( i => {
 
@@ -383,7 +387,7 @@ function performStroke( point, brushOnly = false ) {
 		// compute the offset intensity
 		const dist = tempVec.distanceTo( tempVec2 );
 		let intensity = 1.0 - ( dist / params.size );
-		intensity *= intensity;
+		intensity = Math.pow( intensity, 4 );
 
 		if ( params.invert ) {
 
@@ -391,20 +395,24 @@ function performStroke( point, brushOnly = false ) {
 
 		}
 
-		if ( params.clayBrush ) {
+		// offset the vertex
+		if ( params.brush === 'clay' ) {
 
-			intensity = Math.min( intensity, 0.1 );
+			const planeDist = plane.distanceToPoint( tempVec );
+			const clampedIntensity = Math.min( intensity * 5, 1 );
+			tempVec.addScaledVector( normal, clampedIntensity * targetHeight - planeDist * clampedIntensity * 0.5 );
 
-			// TODO: flatten along the plane defined by the offset normal and point
+		} else if ( params.brush === 'normal' ) {
 
-		} else {
+			tempVec.addScaledVector( normal, intensity * targetHeight );
 
-			intensity *= 0.5;
+		} else if ( params.brush === 'flatten' ) {
+
+			const planeDist = plane.distanceToPoint( tempVec );
+			tempVec.addScaledVector( normal, - planeDist * intensity * 0.5 );
 
 		}
 
-		// offset the vertex
-		tempVec.addScaledVector( normal, intensity * params.intensity * 0.00005 );
 		posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 
 		// save all the triangles that are connected to this vertex
@@ -452,6 +460,8 @@ function performStroke( point, brushOnly = false ) {
 		posAttr.needsUpdate = true;
 		normalAttr.needsUpdate = true;
 
+		// TODO: refit bounds here once it's optimized
+
 	}
 
 }

From 4a59a414c3642d9ffb6ef6ad293e39021648873a Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 20:56:26 -0800
Subject: [PATCH 063/139] spaces to tabs

---
 lgtm.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lgtm.yml b/lgtm.yml
index 0c73913fd..7e8e7ceef 100644
--- a/lgtm.yml
+++ b/lgtm.yml
@@ -2,4 +2,4 @@ path_classifiers:
   template:
     - "**/*.template.js"
 	generated:
-		- exclude: src/
+    - exclude: src/

From 57afdb57b1bac3f1c8accb3cfeafa8340dddb6fa Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 22:26:15 -0800
Subject: [PATCH 064/139] comment

---
 example/sculpt.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/example/sculpt.js b/example/sculpt.js
index 8dc7217d7..1b4c04df6 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -523,6 +523,7 @@ function render() {
 				let stepCount = 0;
 
 				// perform multiple iterations toward the current mouse pose for a consistent stroke
+				// TODO: recast here so he cursor is on the surface of the model
 				while ( castDist > step && mdist > params.size * 200 / hit.distance ) {
 
 					lastMouse.lerp( mouse, percent );

From 646f5ecb4c07a9347b67d0892bf9068407710eb5 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 22:31:41 -0800
Subject: [PATCH 065/139] Updates

---
 example/sculpt.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 1b4c04df6..80a3dd7b5 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -31,7 +31,7 @@ const params = {
 	size: 0.1,
 	brush: 'clay',
 	intensity: 50,
-	maxSteps: 15,
+	maxSteps: 1,
 	invert: false,
 	flatShading: false,
 
@@ -158,7 +158,7 @@ function init() {
 	sculptFolder.add( params, 'brush', [ 'normal', 'clay', 'flatten' ] );
 	sculptFolder.add( params, 'size' ).min( 0.025 ).max( 0.25 ).step( 0.005 );
 	sculptFolder.add( params, 'intensity' ).min( 1 ).max( 100 ).step( 1 );
-	sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
+	// sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
 	sculptFolder.add( params, 'invert' );
 	sculptFolder.add( params, 'flatShading' ).onChange( value => {
 
@@ -387,7 +387,7 @@ function performStroke( point, brushOnly = false ) {
 		// compute the offset intensity
 		const dist = tempVec.distanceTo( tempVec2 );
 		let intensity = 1.0 - ( dist / params.size );
-		intensity = Math.pow( intensity, 4 );
+		intensity = Math.pow( intensity, 3 );
 
 		if ( params.invert ) {
 
@@ -409,7 +409,7 @@ function performStroke( point, brushOnly = false ) {
 		} else if ( params.brush === 'flatten' ) {
 
 			const planeDist = plane.distanceToPoint( tempVec );
-			tempVec.addScaledVector( normal, - planeDist * intensity * 0.5 );
+			tempVec.addScaledVector( normal, - planeDist * intensity * params.intensity * 0.01 );
 
 		}
 

From b86cae11ed12c56ebe45fb3e166bc66022b7c25d Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 22:33:17 -0800
Subject: [PATCH 066/139] comment

---
 example/sculpt.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 80a3dd7b5..30cb3ab6b 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -523,7 +523,8 @@ function render() {
 				let stepCount = 0;
 
 				// perform multiple iterations toward the current mouse pose for a consistent stroke
-				// TODO: recast here so he cursor is on the surface of the model
+				// TODO: recast here so he cursor is on the surface of the model which requires faster
+				// refitting of the model
 				while ( castDist > step && mdist > params.size * 200 / hit.distance ) {
 
 					lastMouse.lerp( mouse, percent );

From a63884d98d5c830b4abba0e3167c72e6da9ddef2 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 5 Mar 2021 22:34:42 -0800
Subject: [PATCH 067/139] more tabs to spaces

---
 lgtm.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lgtm.yml b/lgtm.yml
index 7e8e7ceef..bd29f1aba 100644
--- a/lgtm.yml
+++ b/lgtm.yml
@@ -1,5 +1,5 @@
 path_classifiers:
   template:
     - "**/*.template.js"
-	generated:
+  generated:
     - exclude: src/

From 244e1c0bc169c90f63ae7e22c9416a8e7f599780 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sat, 6 Mar 2021 09:44:29 -0800
Subject: [PATCH 068/139] sculpt update

---
 example/bundle/sculpt.493e9c78.js | 51504 +++++++++++++++++++++++++++-
 example/bundle/sculpt.html        |    39 +-
 2 files changed, 50971 insertions(+), 572 deletions(-)

diff --git a/example/bundle/sculpt.493e9c78.js b/example/bundle/sculpt.493e9c78.js
index 6238e6f2d..ff9aab489 100644
--- a/example/bundle/sculpt.493e9c78.js
+++ b/example/bundle/sculpt.493e9c78.js
@@ -1,573 +1,50935 @@
-parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcelRequire,u="function"==typeof require&&require;function f(t,n){if(!r[t]){if(!e[t]){var i="function"==typeof parcelRequire&&parcelRequire;if(!n&&i)return i(t,!0);if(o)return o(t,!0);if(u&&"string"==typeof t)return u(t);var c=new Error("Cannot find module '"+t+"'");throw c.code="MODULE_NOT_FOUND",c}p.resolve=function(r){return e[t][1][r]||r},p.cache={};var l=r[t]=new f.Module(t);e[t][0].call(l.exports,p,l,l.exports,this)}return r[t].exports;function p(e){return f(p.resolve(e))}}f.isParcelRequire=!0,f.Module=function(e){this.id=e,this.bundle=f,this.exports={}},f.modules=e,f.cache=r,f.parent=o,f.register=function(r,t){e[r]=[function(e,r){r.exports=t},{}]};for(var c=0;c<t.length;c++)try{f(t[c])}catch(e){i||(i=e)}if(t.length){var l=f(t[t.length-1]);"object"==typeof exports&&"undefined"!=typeof module?module.exports=l:"function"==typeof define&&define.amd?define(function(){return l}):n&&(this[n]=l)}if(parcelRequire=f,i)throw i;return f}({"qf4T":[function(require,module,exports) {
-
-var e=module.exports="undefined"!=typeof window&&window.Math==Math?window:"undefined"!=typeof self&&self.Math==Math?self:Function("return this")();"number"==typeof __g&&(__g=e);
-},{}],"ss9A":[function(require,module,exports) {
-var e=module.exports={version:"2.6.11"};"number"==typeof __e&&(__e=e);
-},{}],"M7z6":[function(require,module,exports) {
-module.exports=function(o){return"object"==typeof o?null!==o:"function"==typeof o};
-},{}],"eT53":[function(require,module,exports) {
-var r=require("./_is-object");module.exports=function(e){if(!r(e))throw TypeError(e+" is not an object!");return e};
-},{"./_is-object":"M7z6"}],"BXiR":[function(require,module,exports) {
-module.exports=function(r){try{return!!r()}catch(t){return!0}};
-},{}],"P9Ib":[function(require,module,exports) {
-module.exports=!require("./_fails")(function(){return 7!=Object.defineProperty({},"a",{get:function(){return 7}}).a});
-},{"./_fails":"BXiR"}],"vZ6E":[function(require,module,exports) {
-var e=require("./_is-object"),r=require("./_global").document,t=e(r)&&e(r.createElement);module.exports=function(e){return t?r.createElement(e):{}};
-},{"./_is-object":"M7z6","./_global":"qf4T"}],"o6Gq":[function(require,module,exports) {
-module.exports=!require("./_descriptors")&&!require("./_fails")(function(){return 7!=Object.defineProperty(require("./_dom-create")("div"),"a",{get:function(){return 7}}).a});
-},{"./_descriptors":"P9Ib","./_fails":"BXiR","./_dom-create":"vZ6E"}],"y37I":[function(require,module,exports) {
-var t=require("./_is-object");module.exports=function(r,e){if(!t(r))return r;var o,n;if(e&&"function"==typeof(o=r.toString)&&!t(n=o.call(r)))return n;if("function"==typeof(o=r.valueOf)&&!t(n=o.call(r)))return n;if(!e&&"function"==typeof(o=r.toString)&&!t(n=o.call(r)))return n;throw TypeError("Can't convert object to primitive value")};
-},{"./_is-object":"M7z6"}],"nw8e":[function(require,module,exports) {
-var e=require("./_an-object"),r=require("./_ie8-dom-define"),t=require("./_to-primitive"),i=Object.defineProperty;exports.f=require("./_descriptors")?Object.defineProperty:function(o,n,u){if(e(o),n=t(n,!0),e(u),r)try{return i(o,n,u)}catch(c){}if("get"in u||"set"in u)throw TypeError("Accessors not supported!");return"value"in u&&(o[n]=u.value),o};
-},{"./_an-object":"eT53","./_ie8-dom-define":"o6Gq","./_to-primitive":"y37I","./_descriptors":"P9Ib"}],"uJ6d":[function(require,module,exports) {
-module.exports=function(e,r){return{enumerable:!(1&e),configurable:!(2&e),writable:!(4&e),value:r}};
-},{}],"NXbe":[function(require,module,exports) {
-var r=require("./_object-dp"),e=require("./_property-desc");module.exports=require("./_descriptors")?function(t,u,o){return r.f(t,u,e(1,o))}:function(r,e,t){return r[e]=t,r};
-},{"./_object-dp":"nw8e","./_property-desc":"uJ6d","./_descriptors":"P9Ib"}],"uHgd":[function(require,module,exports) {
-var r={}.hasOwnProperty;module.exports=function(e,n){return r.call(e,n)};
-},{}],"U49f":[function(require,module,exports) {
-var o=0,t=Math.random();module.exports=function(n){return"Symbol(".concat(void 0===n?"":n,")_",(++o+t).toString(36))};
-},{}],"H21C":[function(require,module,exports) {
-module.exports=!1;
-},{}],"zGcK":[function(require,module,exports) {
-
-var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2019 Denis Pushkarev (zloirock.ru)"});
-},{"./_core":"ss9A","./_global":"qf4T","./_library":"H21C"}],"d5RU":[function(require,module,exports) {
-module.exports=require("./_shared")("native-function-to-string",Function.toString);
-},{"./_shared":"zGcK"}],"PHot":[function(require,module,exports) {
-
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+      module.exports = exports;
+    }, {}];
+  };
+
+  var error;
+  for (var i = 0; i < entry.length; i++) {
+    try {
+      newRequire(entry[i]);
+    } catch (e) {
+      // Save first error but execute all entries
+      if (!error) {
+        error = e;
+      }
+    }
+  }
+
+  if (entry.length) {
+    // Expose entry point to Node, AMD or browser globals
+    // Based on https://github.com/ForbesLindesay/umd/blob/master/template.js
+    var mainExports = newRequire(entry[entry.length - 1]);
+
+    // CommonJS
+    if (typeof exports === "object" && typeof module !== "undefined") {
+      module.exports = mainExports;
+
+    // RequireJS
+    } else if (typeof define === "function" && define.amd) {
+     define(function () {
+       return mainExports;
+     });
+
+    // <script>
+    } else if (globalName) {
+      this[globalName] = mainExports;
+    }
+  }
+
+  // Override the current require with this new one
+  parcelRequire = newRequire;
+
+  if (error) {
+    // throw error from earlier, _after updating parcelRequire_
+    throw error;
+  }
+
+  return newRequire;
+})({"../node_modules/core-js/modules/_global.js":[function(require,module,exports) {
+
+// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
+var global = module.exports = typeof window != 'undefined' && window.Math == Math
+  ? window : typeof self != 'undefined' && self.Math == Math ? self
+  // eslint-disable-next-line no-new-func
+  : Function('return this')();
+if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef
+
+},{}],"../node_modules/core-js/modules/_core.js":[function(require,module,exports) {
+var core = module.exports = { version: '2.6.11' };
+if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
+
+},{}],"../node_modules/core-js/modules/_is-object.js":[function(require,module,exports) {
+module.exports = function (it) {
+  return typeof it === 'object' ? it !== null : typeof it === 'function';
+};
+
+},{}],"../node_modules/core-js/modules/_an-object.js":[function(require,module,exports) {
+var isObject = require('./_is-object');
+module.exports = function (it) {
+  if (!isObject(it)) throw TypeError(it + ' is not an object!');
+  return it;
+};
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/_fails.js":[function(require,module,exports) {
+module.exports = function (exec) {
+  try {
+    return !!exec();
+  } catch (e) {
+    return true;
+  }
+};
+
+},{}],"../node_modules/core-js/modules/_descriptors.js":[function(require,module,exports) {
+// Thank's IE8 for his funny defineProperty
+module.exports = !require('./_fails')(function () {
+  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
+});
+
+},{"./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_dom-create.js":[function(require,module,exports) {
+var isObject = require('./_is-object');
+var document = require('./_global').document;
+// typeof document.createElement is 'object' in old IE
+var is = isObject(document) && isObject(document.createElement);
+module.exports = function (it) {
+  return is ? document.createElement(it) : {};
+};
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_ie8-dom-define.js":[function(require,module,exports) {
+module.exports = !require('./_descriptors') && !require('./_fails')(function () {
+  return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7;
+});
+
+},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_dom-create":"../node_modules/core-js/modules/_dom-create.js"}],"../node_modules/core-js/modules/_to-primitive.js":[function(require,module,exports) {
+// 7.1.1 ToPrimitive(input [, PreferredType])
+var isObject = require('./_is-object');
+// instead of the ES6 spec version, we didn't implement @@toPrimitive case
+// and the second argument - flag - preferred type is a string
+module.exports = function (it, S) {
+  if (!isObject(it)) return it;
+  var fn, val;
+  if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
+  if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
+  if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
+  throw TypeError("Can't convert object to primitive value");
+};
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/_object-dp.js":[function(require,module,exports) {
+var anObject = require('./_an-object');
+var IE8_DOM_DEFINE = require('./_ie8-dom-define');
+var toPrimitive = require('./_to-primitive');
+var dP = Object.defineProperty;
+
+exports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) {
+  anObject(O);
+  P = toPrimitive(P, true);
+  anObject(Attributes);
+  if (IE8_DOM_DEFINE) try {
+    return dP(O, P, Attributes);
+  } catch (e) { /* empty */ }
+  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
+  if ('value' in Attributes) O[P] = Attributes.value;
+  return O;
+};
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_ie8-dom-define":"../node_modules/core-js/modules/_ie8-dom-define.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_property-desc.js":[function(require,module,exports) {
+module.exports = function (bitmap, value) {
+  return {
+    enumerable: !(bitmap & 1),
+    configurable: !(bitmap & 2),
+    writable: !(bitmap & 4),
+    value: value
+  };
+};
+
+},{}],"../node_modules/core-js/modules/_hide.js":[function(require,module,exports) {
+var dP = require('./_object-dp');
+var createDesc = require('./_property-desc');
+module.exports = require('./_descriptors') ? function (object, key, value) {
+  return dP.f(object, key, createDesc(1, value));
+} : function (object, key, value) {
+  object[key] = value;
+  return object;
+};
+
+},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_has.js":[function(require,module,exports) {
+var hasOwnProperty = {}.hasOwnProperty;
+module.exports = function (it, key) {
+  return hasOwnProperty.call(it, key);
+};
+
+},{}],"../node_modules/core-js/modules/_uid.js":[function(require,module,exports) {
+var id = 0;
+var px = Math.random();
+module.exports = function (key) {
+  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
+};
+
+},{}],"../node_modules/core-js/modules/_library.js":[function(require,module,exports) {
+module.exports = false;
+
+},{}],"../node_modules/core-js/modules/_shared.js":[function(require,module,exports) {
+
+var core = require('./_core');
+var global = require('./_global');
+var SHARED = '__core-js_shared__';
+var store = global[SHARED] || (global[SHARED] = {});
+
+(module.exports = function (key, value) {
+  return store[key] || (store[key] = value !== undefined ? value : {});
+})('versions', []).push({
+  version: core.version,
+  mode: require('./_library') ? 'pure' : 'global',
+  copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
+});
+
+},{"./_core":"../node_modules/core-js/modules/_core.js","./_global":"../node_modules/core-js/modules/_global.js","./_library":"../node_modules/core-js/modules/_library.js"}],"../node_modules/core-js/modules/_function-to-string.js":[function(require,module,exports) {
+module.exports = require('./_shared')('native-function-to-string', Function.toString);
+
+},{"./_shared":"../node_modules/core-js/modules/_shared.js"}],"../node_modules/core-js/modules/_redefine.js":[function(require,module,exports) {
+
+var global = require('./_global');
+var hide = require('./_hide');
+var has = require('./_has');
+var SRC = require('./_uid')('src');
+var $toString = require('./_function-to-string');
+var TO_STRING = 'toString';
+var TPL = ('' + $toString).split(TO_STRING);
+
+require('./_core').inspectSource = function (it) {
+  return $toString.call(it);
+};
+
+(module.exports = function (O, key, val, safe) {
+  var isFunction = typeof val == 'function';
+  if (isFunction) has(val, 'name') || hide(val, 'name', key);
+  if (O[key] === val) return;
+  if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
+  if (O === global) {
+    O[key] = val;
+  } else if (!safe) {
+    delete O[key];
+    hide(O, key, val);
+  } else if (O[key]) {
+    O[key] = val;
+  } else {
+    hide(O, key, val);
+  }
+// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
+})(Function.prototype, TO_STRING, function toString() {
+  return typeof this == 'function' && this[SRC] || $toString.call(this);
+});
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_has":"../node_modules/core-js/modules/_has.js","./_uid":"../node_modules/core-js/modules/_uid.js","./_function-to-string":"../node_modules/core-js/modules/_function-to-string.js","./_core":"../node_modules/core-js/modules/_core.js"}],"../node_modules/core-js/modules/_a-function.js":[function(require,module,exports) {
+module.exports = function (it) {
+  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
+  return it;
+};
+
+},{}],"../node_modules/core-js/modules/_ctx.js":[function(require,module,exports) {
+// optional / simple context binding
+var aFunction = require('./_a-function');
+module.exports = function (fn, that, length) {
+  aFunction(fn);
+  if (that === undefined) return fn;
+  switch (length) {
+    case 1: return function (a) {
+      return fn.call(that, a);
+    };
+    case 2: return function (a, b) {
+      return fn.call(that, a, b);
+    };
+    case 3: return function (a, b, c) {
+      return fn.call(that, a, b, c);
+    };
+  }
+  return function (/* ...args */) {
+    return fn.apply(that, arguments);
+  };
+};
+
+},{"./_a-function":"../node_modules/core-js/modules/_a-function.js"}],"../node_modules/core-js/modules/_export.js":[function(require,module,exports) {
+
+var global = require('./_global');
+var core = require('./_core');
+var hide = require('./_hide');
+var redefine = require('./_redefine');
+var ctx = require('./_ctx');
+var PROTOTYPE = 'prototype';
+
+var $export = function (type, name, source) {
+  var IS_FORCED = type & $export.F;
+  var IS_GLOBAL = type & $export.G;
+  var IS_STATIC = type & $export.S;
+  var IS_PROTO = type & $export.P;
+  var IS_BIND = type & $export.B;
+  var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];
+  var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
+  var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
+  var key, own, out, exp;
+  if (IS_GLOBAL) source = name;
+  for (key in source) {
+    // contains in native
+    own = !IS_FORCED && target && target[key] !== undefined;
+    // export native or passed
+    out = (own ? target : source)[key];
+    // bind timers to global for call from export context
+    exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
+    // extend global
+    if (target) redefine(target, key, out, type & $export.U);
+    // export
+    if (exports[key] != out) hide(exports, key, exp);
+    if (IS_PROTO && expProto[key] != out) expProto[key] = out;
+  }
+};
+global.core = core;
+// type bitmap
+$export.F = 1;   // forced
+$export.G = 2;   // global
+$export.S = 4;   // static
+$export.P = 8;   // proto
+$export.B = 16;  // bind
+$export.W = 32;  // wrap
+$export.U = 64;  // safe
+$export.R = 128; // real proto method for `library`
+module.exports = $export;
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_core":"../node_modules/core-js/modules/_core.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_ctx":"../node_modules/core-js/modules/_ctx.js"}],"../node_modules/core-js/modules/_defined.js":[function(require,module,exports) {
+// 7.2.1 RequireObjectCoercible(argument)
+module.exports = function (it) {
+  if (it == undefined) throw TypeError("Can't call method on  " + it);
+  return it;
+};
+
+},{}],"../node_modules/core-js/modules/_to-object.js":[function(require,module,exports) {
+// 7.1.13 ToObject(argument)
+var defined = require('./_defined');
+module.exports = function (it) {
+  return Object(defined(it));
+};
+
+},{"./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_to-integer.js":[function(require,module,exports) {
+// 7.1.4 ToInteger
+var ceil = Math.ceil;
+var floor = Math.floor;
+module.exports = function (it) {
+  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
+};
+
+},{}],"../node_modules/core-js/modules/_to-absolute-index.js":[function(require,module,exports) {
+var toInteger = require('./_to-integer');
+var max = Math.max;
+var min = Math.min;
+module.exports = function (index, length) {
+  index = toInteger(index);
+  return index < 0 ? max(index + length, 0) : min(index, length);
+};
+
+},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js"}],"../node_modules/core-js/modules/_to-length.js":[function(require,module,exports) {
+// 7.1.15 ToLength
+var toInteger = require('./_to-integer');
+var min = Math.min;
+module.exports = function (it) {
+  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
+};
+
+},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js"}],"../node_modules/core-js/modules/_array-copy-within.js":[function(require,module,exports) {
+// 22.1.3.3 Array.prototype.copyWithin(target, start, end = this.length)
+'use strict';
+var toObject = require('./_to-object');
+var toAbsoluteIndex = require('./_to-absolute-index');
+var toLength = require('./_to-length');
+
+module.exports = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {
+  var O = toObject(this);
+  var len = toLength(O.length);
+  var to = toAbsoluteIndex(target, len);
+  var from = toAbsoluteIndex(start, len);
+  var end = arguments.length > 2 ? arguments[2] : undefined;
+  var count = Math.min((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);
+  var inc = 1;
+  if (from < to && to < from + count) {
+    inc = -1;
+    from += count - 1;
+    to += count - 1;
+  }
+  while (count-- > 0) {
+    if (from in O) O[to] = O[from];
+    else delete O[to];
+    to += inc;
+    from += inc;
+  } return O;
+};
+
+},{"./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js","./_to-length":"../node_modules/core-js/modules/_to-length.js"}],"../node_modules/core-js/modules/_wks.js":[function(require,module,exports) {
+var store = require('./_shared')('wks');
+var uid = require('./_uid');
+var Symbol = require('./_global').Symbol;
+var USE_SYMBOL = typeof Symbol == 'function';
+
+var $exports = module.exports = function (name) {
+  return store[name] || (store[name] =
+    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));
+};
+
+$exports.store = store;
+
+},{"./_shared":"../node_modules/core-js/modules/_shared.js","./_uid":"../node_modules/core-js/modules/_uid.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_add-to-unscopables.js":[function(require,module,exports) {
+// 22.1.3.31 Array.prototype[@@unscopables]
+var UNSCOPABLES = require('./_wks')('unscopables');
+var ArrayProto = Array.prototype;
+if (ArrayProto[UNSCOPABLES] == undefined) require('./_hide')(ArrayProto, UNSCOPABLES, {});
+module.exports = function (key) {
+  ArrayProto[UNSCOPABLES][key] = true;
+};
+
+},{"./_wks":"../node_modules/core-js/modules/_wks.js","./_hide":"../node_modules/core-js/modules/_hide.js"}],"../node_modules/core-js/modules/es6.array.copy-within.js":[function(require,module,exports) {
+// 22.1.3.3 Array.prototype.copyWithin(target, start, end = this.length)
+var $export = require('./_export');
+
+$export($export.P, 'Array', { copyWithin: require('./_array-copy-within') });
+
+require('./_add-to-unscopables')('copyWithin');
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-copy-within":"../node_modules/core-js/modules/_array-copy-within.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_array-fill.js":[function(require,module,exports) {
+// 22.1.3.6 Array.prototype.fill(value, start = 0, end = this.length)
+'use strict';
+var toObject = require('./_to-object');
+var toAbsoluteIndex = require('./_to-absolute-index');
+var toLength = require('./_to-length');
+module.exports = function fill(value /* , start = 0, end = @length */) {
+  var O = toObject(this);
+  var length = toLength(O.length);
+  var aLen = arguments.length;
+  var index = toAbsoluteIndex(aLen > 1 ? arguments[1] : undefined, length);
+  var end = aLen > 2 ? arguments[2] : undefined;
+  var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
+  while (endPos > index) O[index++] = value;
+  return O;
+};
+
+},{"./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js","./_to-length":"../node_modules/core-js/modules/_to-length.js"}],"../node_modules/core-js/modules/es6.array.fill.js":[function(require,module,exports) {
+// 22.1.3.6 Array.prototype.fill(value, start = 0, end = this.length)
+var $export = require('./_export');
+
+$export($export.P, 'Array', { fill: require('./_array-fill') });
+
+require('./_add-to-unscopables')('fill');
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-fill":"../node_modules/core-js/modules/_array-fill.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_cof.js":[function(require,module,exports) {
+var toString = {}.toString;
+
+module.exports = function (it) {
+  return toString.call(it).slice(8, -1);
+};
+
+},{}],"../node_modules/core-js/modules/_iobject.js":[function(require,module,exports) {
+// fallback for non-array-like ES3 and non-enumerable old V8 strings
+var cof = require('./_cof');
+// eslint-disable-next-line no-prototype-builtins
+module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
+  return cof(it) == 'String' ? it.split('') : Object(it);
+};
+
+},{"./_cof":"../node_modules/core-js/modules/_cof.js"}],"../node_modules/core-js/modules/_is-array.js":[function(require,module,exports) {
+// 7.2.2 IsArray(argument)
+var cof = require('./_cof');
+module.exports = Array.isArray || function isArray(arg) {
+  return cof(arg) == 'Array';
+};
+
+},{"./_cof":"../node_modules/core-js/modules/_cof.js"}],"../node_modules/core-js/modules/_array-species-constructor.js":[function(require,module,exports) {
+var isObject = require('./_is-object');
+var isArray = require('./_is-array');
+var SPECIES = require('./_wks')('species');
+
+module.exports = function (original) {
+  var C;
+  if (isArray(original)) {
+    C = original.constructor;
+    // cross-realm fallback
+    if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;
+    if (isObject(C)) {
+      C = C[SPECIES];
+      if (C === null) C = undefined;
+    }
+  } return C === undefined ? Array : C;
+};
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_is-array":"../node_modules/core-js/modules/_is-array.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_array-species-create.js":[function(require,module,exports) {
+// 9.4.2.3 ArraySpeciesCreate(originalArray, length)
+var speciesConstructor = require('./_array-species-constructor');
+
+module.exports = function (original, length) {
+  return new (speciesConstructor(original))(length);
+};
+
+},{"./_array-species-constructor":"../node_modules/core-js/modules/_array-species-constructor.js"}],"../node_modules/core-js/modules/_array-methods.js":[function(require,module,exports) {
+// 0 -> Array#forEach
+// 1 -> Array#map
+// 2 -> Array#filter
+// 3 -> Array#some
+// 4 -> Array#every
+// 5 -> Array#find
+// 6 -> Array#findIndex
+var ctx = require('./_ctx');
+var IObject = require('./_iobject');
+var toObject = require('./_to-object');
+var toLength = require('./_to-length');
+var asc = require('./_array-species-create');
+module.exports = function (TYPE, $create) {
+  var IS_MAP = TYPE == 1;
+  var IS_FILTER = TYPE == 2;
+  var IS_SOME = TYPE == 3;
+  var IS_EVERY = TYPE == 4;
+  var IS_FIND_INDEX = TYPE == 6;
+  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
+  var create = $create || asc;
+  return function ($this, callbackfn, that) {
+    var O = toObject($this);
+    var self = IObject(O);
+    var f = ctx(callbackfn, that, 3);
+    var length = toLength(self.length);
+    var index = 0;
+    var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
+    var val, res;
+    for (;length > index; index++) if (NO_HOLES || index in self) {
+      val = self[index];
+      res = f(val, index, O);
+      if (TYPE) {
+        if (IS_MAP) result[index] = res;   // map
+        else if (res) switch (TYPE) {
+          case 3: return true;             // some
+          case 5: return val;              // find
+          case 6: return index;            // findIndex
+          case 2: result.push(val);        // filter
+        } else if (IS_EVERY) return false; // every
+      }
+    }
+    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
+  };
+};
+
+},{"./_ctx":"../node_modules/core-js/modules/_ctx.js","./_iobject":"../node_modules/core-js/modules/_iobject.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_array-species-create":"../node_modules/core-js/modules/_array-species-create.js"}],"../node_modules/core-js/modules/es6.array.find.js":[function(require,module,exports) {
+'use strict';
+// 22.1.3.8 Array.prototype.find(predicate, thisArg = undefined)
+var $export = require('./_export');
+var $find = require('./_array-methods')(5);
+var KEY = 'find';
+var forced = true;
+// Shouldn't skip holes
+if (KEY in []) Array(1)[KEY](function () { forced = false; });
+$export($export.P + $export.F * forced, 'Array', {
+  find: function find(callbackfn /* , that = undefined */) {
+    return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+  }
+});
+require('./_add-to-unscopables')(KEY);
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/es6.array.find-index.js":[function(require,module,exports) {
+'use strict';
+// 22.1.3.9 Array.prototype.findIndex(predicate, thisArg = undefined)
+var $export = require('./_export');
+var $find = require('./_array-methods')(6);
+var KEY = 'findIndex';
+var forced = true;
+// Shouldn't skip holes
+if (KEY in []) Array(1)[KEY](function () { forced = false; });
+$export($export.P + $export.F * forced, 'Array', {
+  findIndex: function findIndex(callbackfn /* , that = undefined */) {
+    return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+  }
+});
+require('./_add-to-unscopables')(KEY);
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_flatten-into-array.js":[function(require,module,exports) {
+'use strict';
+// https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray
+var isArray = require('./_is-array');
+var isObject = require('./_is-object');
+var toLength = require('./_to-length');
+var ctx = require('./_ctx');
+var IS_CONCAT_SPREADABLE = require('./_wks')('isConcatSpreadable');
+
+function flattenIntoArray(target, original, source, sourceLen, start, depth, mapper, thisArg) {
+  var targetIndex = start;
+  var sourceIndex = 0;
+  var mapFn = mapper ? ctx(mapper, thisArg, 3) : false;
+  var element, spreadable;
+
+  while (sourceIndex < sourceLen) {
+    if (sourceIndex in source) {
+      element = mapFn ? mapFn(source[sourceIndex], sourceIndex, original) : source[sourceIndex];
+
+      spreadable = false;
+      if (isObject(element)) {
+        spreadable = element[IS_CONCAT_SPREADABLE];
+        spreadable = spreadable !== undefined ? !!spreadable : isArray(element);
+      }
+
+      if (spreadable && depth > 0) {
+        targetIndex = flattenIntoArray(target, original, element, toLength(element.length), targetIndex, depth - 1) - 1;
+      } else {
+        if (targetIndex >= 0x1fffffffffffff) throw TypeError();
+        target[targetIndex] = element;
+      }
+
+      targetIndex++;
+    }
+    sourceIndex++;
+  }
+  return targetIndex;
+}
+
+module.exports = flattenIntoArray;
+
+},{"./_is-array":"../node_modules/core-js/modules/_is-array.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es7.array.flat-map.js":[function(require,module,exports) {
+'use strict';
+// https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatMap
+var $export = require('./_export');
+var flattenIntoArray = require('./_flatten-into-array');
+var toObject = require('./_to-object');
+var toLength = require('./_to-length');
+var aFunction = require('./_a-function');
+var arraySpeciesCreate = require('./_array-species-create');
+
+$export($export.P, 'Array', {
+  flatMap: function flatMap(callbackfn /* , thisArg */) {
+    var O = toObject(this);
+    var sourceLen, A;
+    aFunction(callbackfn);
+    sourceLen = toLength(O.length);
+    A = arraySpeciesCreate(O, 0);
+    flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments[1]);
+    return A;
+  }
+});
+
+require('./_add-to-unscopables')('flatMap');
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_flatten-into-array":"../node_modules/core-js/modules/_flatten-into-array.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_array-species-create":"../node_modules/core-js/modules/_array-species-create.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_iter-call.js":[function(require,module,exports) {
+// call something on iterator step with safe closing on error
+var anObject = require('./_an-object');
+module.exports = function (iterator, fn, value, entries) {
+  try {
+    return entries ? fn(anObject(value)[0], value[1]) : fn(value);
+  // 7.4.6 IteratorClose(iterator, completion)
+  } catch (e) {
+    var ret = iterator['return'];
+    if (ret !== undefined) anObject(ret.call(iterator));
+    throw e;
+  }
+};
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/_iterators.js":[function(require,module,exports) {
+module.exports = {};
+
+},{}],"../node_modules/core-js/modules/_is-array-iter.js":[function(require,module,exports) {
+// check on default Array iterator
+var Iterators = require('./_iterators');
+var ITERATOR = require('./_wks')('iterator');
+var ArrayProto = Array.prototype;
+
+module.exports = function (it) {
+  return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
+};
+
+},{"./_iterators":"../node_modules/core-js/modules/_iterators.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_create-property.js":[function(require,module,exports) {
+'use strict';
+var $defineProperty = require('./_object-dp');
+var createDesc = require('./_property-desc');
+
+module.exports = function (object, index, value) {
+  if (index in object) $defineProperty.f(object, index, createDesc(0, value));
+  else object[index] = value;
+};
+
+},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js"}],"../node_modules/core-js/modules/_classof.js":[function(require,module,exports) {
+// getting tag from 19.1.3.6 Object.prototype.toString()
+var cof = require('./_cof');
+var TAG = require('./_wks')('toStringTag');
+// ES3 wrong here
+var ARG = cof(function () { return arguments; }()) == 'Arguments';
+
+// fallback for IE11 Script Access Denied error
+var tryGet = function (it, key) {
+  try {
+    return it[key];
+  } catch (e) { /* empty */ }
+};
+
+module.exports = function (it) {
+  var O, T, B;
+  return it === undefined ? 'Undefined' : it === null ? 'Null'
+    // @@toStringTag case
+    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
+    // builtinTag case
+    : ARG ? cof(O)
+    // ES3 arguments fallback
+    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
+};
+
+},{"./_cof":"../node_modules/core-js/modules/_cof.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/core.get-iterator-method.js":[function(require,module,exports) {
+var classof = require('./_classof');
+var ITERATOR = require('./_wks')('iterator');
+var Iterators = require('./_iterators');
+module.exports = require('./_core').getIteratorMethod = function (it) {
+  if (it != undefined) return it[ITERATOR]
+    || it['@@iterator']
+    || Iterators[classof(it)];
+};
+
+},{"./_classof":"../node_modules/core-js/modules/_classof.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_core":"../node_modules/core-js/modules/_core.js"}],"../node_modules/core-js/modules/_iter-detect.js":[function(require,module,exports) {
+var ITERATOR = require('./_wks')('iterator');
+var SAFE_CLOSING = false;
+
+try {
+  var riter = [7][ITERATOR]();
+  riter['return'] = function () { SAFE_CLOSING = true; };
+  // eslint-disable-next-line no-throw-literal
+  Array.from(riter, function () { throw 2; });
+} catch (e) { /* empty */ }
+
+module.exports = function (exec, skipClosing) {
+  if (!skipClosing && !SAFE_CLOSING) return false;
+  var safe = false;
+  try {
+    var arr = [7];
+    var iter = arr[ITERATOR]();
+    iter.next = function () { return { done: safe = true }; };
+    arr[ITERATOR] = function () { return iter; };
+    exec(arr);
+  } catch (e) { /* empty */ }
+  return safe;
+};
+
+},{"./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es6.array.from.js":[function(require,module,exports) {
+'use strict';
+var ctx = require('./_ctx');
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var call = require('./_iter-call');
+var isArrayIter = require('./_is-array-iter');
+var toLength = require('./_to-length');
+var createProperty = require('./_create-property');
+var getIterFn = require('./core.get-iterator-method');
+
+$export($export.S + $export.F * !require('./_iter-detect')(function (iter) { Array.from(iter); }), 'Array', {
+  // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined)
+  from: function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
+    var O = toObject(arrayLike);
+    var C = typeof this == 'function' ? this : Array;
+    var aLen = arguments.length;
+    var mapfn = aLen > 1 ? arguments[1] : undefined;
+    var mapping = mapfn !== undefined;
+    var index = 0;
+    var iterFn = getIterFn(O);
+    var length, result, step, iterator;
+    if (mapping) mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);
+    // if object isn't iterable or it's array with default iterator - use simple case
+    if (iterFn != undefined && !(C == Array && isArrayIter(iterFn))) {
+      for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {
+        createProperty(result, index, mapping ? call(iterator, mapfn, [step.value, index], true) : step.value);
+      }
+    } else {
+      length = toLength(O.length);
+      for (result = new C(length); length > index; index++) {
+        createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);
+      }
+    }
+    result.length = index;
+    return result;
+  }
+});
+
+},{"./_ctx":"../node_modules/core-js/modules/_ctx.js","./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_iter-call":"../node_modules/core-js/modules/_iter-call.js","./_is-array-iter":"../node_modules/core-js/modules/_is-array-iter.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_create-property":"../node_modules/core-js/modules/_create-property.js","./core.get-iterator-method":"../node_modules/core-js/modules/core.get-iterator-method.js","./_iter-detect":"../node_modules/core-js/modules/_iter-detect.js"}],"../node_modules/core-js/modules/_to-iobject.js":[function(require,module,exports) {
+// to indexed object, toObject with fallback for non-array-like ES3 strings
+var IObject = require('./_iobject');
+var defined = require('./_defined');
+module.exports = function (it) {
+  return IObject(defined(it));
+};
+
+},{"./_iobject":"../node_modules/core-js/modules/_iobject.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_array-includes.js":[function(require,module,exports) {
+// false -> Array#indexOf
+// true  -> Array#includes
+var toIObject = require('./_to-iobject');
+var toLength = require('./_to-length');
+var toAbsoluteIndex = require('./_to-absolute-index');
+module.exports = function (IS_INCLUDES) {
+  return function ($this, el, fromIndex) {
+    var O = toIObject($this);
+    var length = toLength(O.length);
+    var index = toAbsoluteIndex(fromIndex, length);
+    var value;
+    // Array#includes uses SameValueZero equality algorithm
+    // eslint-disable-next-line no-self-compare
+    if (IS_INCLUDES && el != el) while (length > index) {
+      value = O[index++];
+      // eslint-disable-next-line no-self-compare
+      if (value != value) return true;
+    // Array#indexOf ignores holes, Array#includes - not
+    } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
+      if (O[index] === el) return IS_INCLUDES || index || 0;
+    } return !IS_INCLUDES && -1;
+  };
+};
+
+},{"./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js"}],"../node_modules/core-js/modules/es7.array.includes.js":[function(require,module,exports) {
+'use strict';
+// https://github.com/tc39/Array.prototype.includes
+var $export = require('./_export');
+var $includes = require('./_array-includes')(true);
+
+$export($export.P, 'Array', {
+  includes: function includes(el /* , fromIndex = 0 */) {
+    return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
+  }
+});
+
+require('./_add-to-unscopables')('includes');
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-includes":"../node_modules/core-js/modules/_array-includes.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_iter-step.js":[function(require,module,exports) {
+module.exports = function (done, value) {
+  return { value: value, done: !!done };
+};
+
+},{}],"../node_modules/core-js/modules/_shared-key.js":[function(require,module,exports) {
+var shared = require('./_shared')('keys');
+var uid = require('./_uid');
+module.exports = function (key) {
+  return shared[key] || (shared[key] = uid(key));
+};
+
+},{"./_shared":"../node_modules/core-js/modules/_shared.js","./_uid":"../node_modules/core-js/modules/_uid.js"}],"../node_modules/core-js/modules/_object-keys-internal.js":[function(require,module,exports) {
+var has = require('./_has');
+var toIObject = require('./_to-iobject');
+var arrayIndexOf = require('./_array-includes')(false);
+var IE_PROTO = require('./_shared-key')('IE_PROTO');
+
+module.exports = function (object, names) {
+  var O = toIObject(object);
+  var i = 0;
+  var result = [];
+  var key;
+  for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);
+  // Don't enum bug & hidden keys
+  while (names.length > i) if (has(O, key = names[i++])) {
+    ~arrayIndexOf(result, key) || result.push(key);
+  }
+  return result;
+};
+
+},{"./_has":"../node_modules/core-js/modules/_has.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_array-includes":"../node_modules/core-js/modules/_array-includes.js","./_shared-key":"../node_modules/core-js/modules/_shared-key.js"}],"../node_modules/core-js/modules/_enum-bug-keys.js":[function(require,module,exports) {
+// IE 8- don't enum bug keys
+module.exports = (
+  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
+).split(',');
+
+},{}],"../node_modules/core-js/modules/_object-keys.js":[function(require,module,exports) {
+// 19.1.2.14 / 15.2.3.14 Object.keys(O)
+var $keys = require('./_object-keys-internal');
+var enumBugKeys = require('./_enum-bug-keys');
+
+module.exports = Object.keys || function keys(O) {
+  return $keys(O, enumBugKeys);
+};
+
+},{"./_object-keys-internal":"../node_modules/core-js/modules/_object-keys-internal.js","./_enum-bug-keys":"../node_modules/core-js/modules/_enum-bug-keys.js"}],"../node_modules/core-js/modules/_object-dps.js":[function(require,module,exports) {
+var dP = require('./_object-dp');
+var anObject = require('./_an-object');
+var getKeys = require('./_object-keys');
+
+module.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {
+  anObject(O);
+  var keys = getKeys(Properties);
+  var length = keys.length;
+  var i = 0;
+  var P;
+  while (length > i) dP.f(O, P = keys[i++], Properties[P]);
+  return O;
+};
+
+},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_html.js":[function(require,module,exports) {
+var document = require('./_global').document;
+module.exports = document && document.documentElement;
+
+},{"./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_object-create.js":[function(require,module,exports) {
+// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
+var anObject = require('./_an-object');
+var dPs = require('./_object-dps');
+var enumBugKeys = require('./_enum-bug-keys');
+var IE_PROTO = require('./_shared-key')('IE_PROTO');
+var Empty = function () { /* empty */ };
+var PROTOTYPE = 'prototype';
+
+// Create object with fake `null` prototype: use iframe Object with cleared prototype
+var createDict = function () {
+  // Thrash, waste and sodomy: IE GC bug
+  var iframe = require('./_dom-create')('iframe');
+  var i = enumBugKeys.length;
+  var lt = '<';
+  var gt = '>';
+  var iframeDocument;
+  iframe.style.display = 'none';
+  require('./_html').appendChild(iframe);
+  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
+  // createDict = iframe.contentWindow.Object;
+  // html.removeChild(iframe);
+  iframeDocument = iframe.contentWindow.document;
+  iframeDocument.open();
+  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
+  iframeDocument.close();
+  createDict = iframeDocument.F;
+  while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];
+  return createDict();
+};
+
+module.exports = Object.create || function create(O, Properties) {
+  var result;
+  if (O !== null) {
+    Empty[PROTOTYPE] = anObject(O);
+    result = new Empty();
+    Empty[PROTOTYPE] = null;
+    // add "__proto__" for Object.getPrototypeOf polyfill
+    result[IE_PROTO] = O;
+  } else result = createDict();
+  return Properties === undefined ? result : dPs(result, Properties);
+};
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_object-dps":"../node_modules/core-js/modules/_object-dps.js","./_enum-bug-keys":"../node_modules/core-js/modules/_enum-bug-keys.js","./_shared-key":"../node_modules/core-js/modules/_shared-key.js","./_dom-create":"../node_modules/core-js/modules/_dom-create.js","./_html":"../node_modules/core-js/modules/_html.js"}],"../node_modules/core-js/modules/_set-to-string-tag.js":[function(require,module,exports) {
+var def = require('./_object-dp').f;
+var has = require('./_has');
+var TAG = require('./_wks')('toStringTag');
+
+module.exports = function (it, tag, stat) {
+  if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });
+};
+
+},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_has":"../node_modules/core-js/modules/_has.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_iter-create.js":[function(require,module,exports) {
+'use strict';
+var create = require('./_object-create');
+var descriptor = require('./_property-desc');
+var setToStringTag = require('./_set-to-string-tag');
+var IteratorPrototype = {};
+
+// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
+require('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; });
+
+module.exports = function (Constructor, NAME, next) {
+  Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });
+  setToStringTag(Constructor, NAME + ' Iterator');
+};
+
+},{"./_object-create":"../node_modules/core-js/modules/_object-create.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_object-gpo.js":[function(require,module,exports) {
+// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
+var has = require('./_has');
+var toObject = require('./_to-object');
+var IE_PROTO = require('./_shared-key')('IE_PROTO');
+var ObjectProto = Object.prototype;
+
+module.exports = Object.getPrototypeOf || function (O) {
+  O = toObject(O);
+  if (has(O, IE_PROTO)) return O[IE_PROTO];
+  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
+    return O.constructor.prototype;
+  } return O instanceof Object ? ObjectProto : null;
+};
+
+},{"./_has":"../node_modules/core-js/modules/_has.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_shared-key":"../node_modules/core-js/modules/_shared-key.js"}],"../node_modules/core-js/modules/_iter-define.js":[function(require,module,exports) {
+'use strict';
+var LIBRARY = require('./_library');
+var $export = require('./_export');
+var redefine = require('./_redefine');
+var hide = require('./_hide');
+var Iterators = require('./_iterators');
+var $iterCreate = require('./_iter-create');
+var setToStringTag = require('./_set-to-string-tag');
+var getPrototypeOf = require('./_object-gpo');
+var ITERATOR = require('./_wks')('iterator');
+var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
+var FF_ITERATOR = '@@iterator';
+var KEYS = 'keys';
+var VALUES = 'values';
+
+var returnThis = function () { return this; };
+
+module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
+  $iterCreate(Constructor, NAME, next);
+  var getMethod = function (kind) {
+    if (!BUGGY && kind in proto) return proto[kind];
+    switch (kind) {
+      case KEYS: return function keys() { return new Constructor(this, kind); };
+      case VALUES: return function values() { return new Constructor(this, kind); };
+    } return function entries() { return new Constructor(this, kind); };
+  };
+  var TAG = NAME + ' Iterator';
+  var DEF_VALUES = DEFAULT == VALUES;
+  var VALUES_BUG = false;
+  var proto = Base.prototype;
+  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
+  var $default = $native || getMethod(DEFAULT);
+  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
+  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
+  var methods, key, IteratorPrototype;
+  // Fix native
+  if ($anyNative) {
+    IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));
+    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
+      // Set @@toStringTag to native iterators
+      setToStringTag(IteratorPrototype, TAG, true);
+      // fix for some old engines
+      if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);
+    }
+  }
+  // fix Array#{values, @@iterator}.name in V8 / FF
+  if (DEF_VALUES && $native && $native.name !== VALUES) {
+    VALUES_BUG = true;
+    $default = function values() { return $native.call(this); };
+  }
+  // Define iterator
+  if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
+    hide(proto, ITERATOR, $default);
+  }
+  // Plug for library
+  Iterators[NAME] = $default;
+  Iterators[TAG] = returnThis;
+  if (DEFAULT) {
+    methods = {
+      values: DEF_VALUES ? $default : getMethod(VALUES),
+      keys: IS_SET ? $default : getMethod(KEYS),
+      entries: $entries
+    };
+    if (FORCED) for (key in methods) {
+      if (!(key in proto)) redefine(proto, key, methods[key]);
+    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
+  }
+  return methods;
+};
+
+},{"./_library":"../node_modules/core-js/modules/_library.js","./_export":"../node_modules/core-js/modules/_export.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_iter-create":"../node_modules/core-js/modules/_iter-create.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es6.array.iterator.js":[function(require,module,exports) {
+'use strict';
+var addToUnscopables = require('./_add-to-unscopables');
+var step = require('./_iter-step');
+var Iterators = require('./_iterators');
+var toIObject = require('./_to-iobject');
+
+// 22.1.3.4 Array.prototype.entries()
+// 22.1.3.13 Array.prototype.keys()
+// 22.1.3.29 Array.prototype.values()
+// 22.1.3.30 Array.prototype[@@iterator]()
+module.exports = require('./_iter-define')(Array, 'Array', function (iterated, kind) {
+  this._t = toIObject(iterated); // target
+  this._i = 0;                   // next index
+  this._k = kind;                // kind
+// 22.1.5.2.1 %ArrayIteratorPrototype%.next()
+}, function () {
+  var O = this._t;
+  var kind = this._k;
+  var index = this._i++;
+  if (!O || index >= O.length) {
+    this._t = undefined;
+    return step(1);
+  }
+  if (kind == 'keys') return step(0, index);
+  if (kind == 'values') return step(0, O[index]);
+  return step(0, [index, O[index]]);
+}, 'values');
+
+// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
+Iterators.Arguments = Iterators.Array;
+
+addToUnscopables('keys');
+addToUnscopables('values');
+addToUnscopables('entries');
+
+},{"./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js","./_iter-step":"../node_modules/core-js/modules/_iter-step.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_iter-define":"../node_modules/core-js/modules/_iter-define.js"}],"../node_modules/core-js/modules/es6.array.of.js":[function(require,module,exports) {
+'use strict';
+var $export = require('./_export');
+var createProperty = require('./_create-property');
+
+// WebKit Array.of isn't generic
+$export($export.S + $export.F * require('./_fails')(function () {
+  function F() { /* empty */ }
+  return !(Array.of.call(F) instanceof F);
+}), 'Array', {
+  // 22.1.2.3 Array.of( ...items)
+  of: function of(/* ...args */) {
+    var index = 0;
+    var aLen = arguments.length;
+    var result = new (typeof this == 'function' ? this : Array)(aLen);
+    while (aLen > index) createProperty(result, index, arguments[index++]);
+    result.length = aLen;
+    return result;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_create-property":"../node_modules/core-js/modules/_create-property.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_strict-method.js":[function(require,module,exports) {
+'use strict';
+var fails = require('./_fails');
+
+module.exports = function (method, arg) {
+  return !!method && fails(function () {
+    // eslint-disable-next-line no-useless-call
+    arg ? method.call(null, function () { /* empty */ }, 1) : method.call(null);
+  });
+};
+
+},{"./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.array.sort.js":[function(require,module,exports) {
+'use strict';
+var $export = require('./_export');
+var aFunction = require('./_a-function');
+var toObject = require('./_to-object');
+var fails = require('./_fails');
+var $sort = [].sort;
+var test = [1, 2, 3];
+
+$export($export.P + $export.F * (fails(function () {
+  // IE8-
+  test.sort(undefined);
+}) || !fails(function () {
+  // V8 bug
+  test.sort(null);
+  // Old WebKit
+}) || !require('./_strict-method')($sort)), 'Array', {
+  // 22.1.3.25 Array.prototype.sort(comparefn)
+  sort: function sort(comparefn) {
+    return comparefn === undefined
+      ? $sort.call(toObject(this))
+      : $sort.call(toObject(this), aFunction(comparefn));
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_strict-method":"../node_modules/core-js/modules/_strict-method.js"}],"../node_modules/core-js/modules/_set-species.js":[function(require,module,exports) {
+
+'use strict';
+var global = require('./_global');
+var dP = require('./_object-dp');
+var DESCRIPTORS = require('./_descriptors');
+var SPECIES = require('./_wks')('species');
+
+module.exports = function (KEY) {
+  var C = global[KEY];
+  if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {
+    configurable: true,
+    get: function () { return this; }
+  });
+};
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es6.array.species.js":[function(require,module,exports) {
+require('./_set-species')('Array');
+
+},{"./_set-species":"../node_modules/core-js/modules/_set-species.js"}],"../node_modules/core-js/modules/es6.date.to-json.js":[function(require,module,exports) {
+'use strict';
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var toPrimitive = require('./_to-primitive');
+
+$export($export.P + $export.F * require('./_fails')(function () {
+  return new Date(NaN).toJSON() !== null
+    || Date.prototype.toJSON.call({ toISOString: function () { return 1; } }) !== 1;
+}), 'Date', {
+  // eslint-disable-next-line no-unused-vars
+  toJSON: function toJSON(key) {
+    var O = toObject(this);
+    var pv = toPrimitive(O);
+    return typeof pv == 'number' && !isFinite(pv) ? null : O.toISOString();
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_date-to-primitive.js":[function(require,module,exports) {
+'use strict';
+var anObject = require('./_an-object');
+var toPrimitive = require('./_to-primitive');
+var NUMBER = 'number';
+
+module.exports = function (hint) {
+  if (hint !== 'string' && hint !== NUMBER && hint !== 'default') throw TypeError('Incorrect hint');
+  return toPrimitive(anObject(this), hint != NUMBER);
+};
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js"}],"../node_modules/core-js/modules/es6.date.to-primitive.js":[function(require,module,exports) {
+var TO_PRIMITIVE = require('./_wks')('toPrimitive');
+var proto = Date.prototype;
+
+if (!(TO_PRIMITIVE in proto)) require('./_hide')(proto, TO_PRIMITIVE, require('./_date-to-primitive'));
+
+},{"./_wks":"../node_modules/core-js/modules/_wks.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_date-to-primitive":"../node_modules/core-js/modules/_date-to-primitive.js"}],"../node_modules/core-js/modules/es6.function.has-instance.js":[function(require,module,exports) {
+'use strict';
+var isObject = require('./_is-object');
+var getPrototypeOf = require('./_object-gpo');
+var HAS_INSTANCE = require('./_wks')('hasInstance');
+var FunctionProto = Function.prototype;
+// 19.2.3.6 Function.prototype[@@hasInstance](V)
+if (!(HAS_INSTANCE in FunctionProto)) require('./_object-dp').f(FunctionProto, HAS_INSTANCE, { value: function (O) {
+  if (typeof this != 'function' || !isObject(O)) return false;
+  if (!isObject(this.prototype)) return O instanceof this;
+  // for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:
+  while (O = getPrototypeOf(O)) if (this.prototype === O) return true;
+  return false;
+} });
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js"}],"../node_modules/core-js/modules/es6.function.name.js":[function(require,module,exports) {
+var dP = require('./_object-dp').f;
+var FProto = Function.prototype;
+var nameRE = /^\s*function ([^ (]*)/;
+var NAME = 'name';
+
+// 19.2.4.2 name
+NAME in FProto || require('./_descriptors') && dP(FProto, NAME, {
+  configurable: true,
+  get: function () {
+    try {
+      return ('' + this).match(nameRE)[1];
+    } catch (e) {
+      return '';
+    }
+  }
+});
+
+},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_redefine-all.js":[function(require,module,exports) {
+var redefine = require('./_redefine');
+module.exports = function (target, src, safe) {
+  for (var key in src) redefine(target, key, src[key], safe);
+  return target;
+};
+
+},{"./_redefine":"../node_modules/core-js/modules/_redefine.js"}],"../node_modules/core-js/modules/_an-instance.js":[function(require,module,exports) {
+module.exports = function (it, Constructor, name, forbiddenField) {
+  if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) {
+    throw TypeError(name + ': incorrect invocation!');
+  } return it;
+};
+
+},{}],"../node_modules/core-js/modules/_for-of.js":[function(require,module,exports) {
+var ctx = require('./_ctx');
+var call = require('./_iter-call');
+var isArrayIter = require('./_is-array-iter');
+var anObject = require('./_an-object');
+var toLength = require('./_to-length');
+var getIterFn = require('./core.get-iterator-method');
+var BREAK = {};
+var RETURN = {};
+var exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {
+  var iterFn = ITERATOR ? function () { return iterable; } : getIterFn(iterable);
+  var f = ctx(fn, that, entries ? 2 : 1);
+  var index = 0;
+  var length, step, iterator, result;
+  if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');
+  // fast case for arrays with default iterator
+  if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {
+    result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
+    if (result === BREAK || result === RETURN) return result;
+  } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {
+    result = call(iterator, f, step.value, entries);
+    if (result === BREAK || result === RETURN) return result;
+  }
+};
+exports.BREAK = BREAK;
+exports.RETURN = RETURN;
+
+},{"./_ctx":"../node_modules/core-js/modules/_ctx.js","./_iter-call":"../node_modules/core-js/modules/_iter-call.js","./_is-array-iter":"../node_modules/core-js/modules/_is-array-iter.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./core.get-iterator-method":"../node_modules/core-js/modules/core.get-iterator-method.js"}],"../node_modules/core-js/modules/_meta.js":[function(require,module,exports) {
+var META = require('./_uid')('meta');
+var isObject = require('./_is-object');
+var has = require('./_has');
+var setDesc = require('./_object-dp').f;
+var id = 0;
+var isExtensible = Object.isExtensible || function () {
+  return true;
+};
+var FREEZE = !require('./_fails')(function () {
+  return isExtensible(Object.preventExtensions({}));
+});
+var setMeta = function (it) {
+  setDesc(it, META, { value: {
+    i: 'O' + ++id, // object ID
+    w: {}          // weak collections IDs
+  } });
+};
+var fastKey = function (it, create) {
+  // return primitive with prefix
+  if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
+  if (!has(it, META)) {
+    // can't set metadata to uncaught frozen object
+    if (!isExtensible(it)) return 'F';
+    // not necessary to add metadata
+    if (!create) return 'E';
+    // add missing metadata
+    setMeta(it);
+  // return object ID
+  } return it[META].i;
+};
+var getWeak = function (it, create) {
+  if (!has(it, META)) {
+    // can't set metadata to uncaught frozen object
+    if (!isExtensible(it)) return true;
+    // not necessary to add metadata
+    if (!create) return false;
+    // add missing metadata
+    setMeta(it);
+  // return hash weak collections IDs
+  } return it[META].w;
+};
+// add metadata on freeze-family methods calling
+var onFreeze = function (it) {
+  if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
+  return it;
+};
+var meta = module.exports = {
+  KEY: META,
+  NEED: false,
+  fastKey: fastKey,
+  getWeak: getWeak,
+  onFreeze: onFreeze
+};
+
+},{"./_uid":"../node_modules/core-js/modules/_uid.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_has":"../node_modules/core-js/modules/_has.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_validate-collection.js":[function(require,module,exports) {
+var isObject = require('./_is-object');
+module.exports = function (it, TYPE) {
+  if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');
+  return it;
+};
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/_collection-strong.js":[function(require,module,exports) {
+'use strict';
+var dP = require('./_object-dp').f;
+var create = require('./_object-create');
+var redefineAll = require('./_redefine-all');
+var ctx = require('./_ctx');
+var anInstance = require('./_an-instance');
+var forOf = require('./_for-of');
+var $iterDefine = require('./_iter-define');
+var step = require('./_iter-step');
+var setSpecies = require('./_set-species');
+var DESCRIPTORS = require('./_descriptors');
+var fastKey = require('./_meta').fastKey;
+var validate = require('./_validate-collection');
+var SIZE = DESCRIPTORS ? '_s' : 'size';
+
+var getEntry = function (that, key) {
+  // fast case
+  var index = fastKey(key);
+  var entry;
+  if (index !== 'F') return that._i[index];
+  // frozen object case
+  for (entry = that._f; entry; entry = entry.n) {
+    if (entry.k == key) return entry;
+  }
+};
+
+module.exports = {
+  getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {
+    var C = wrapper(function (that, iterable) {
+      anInstance(that, C, NAME, '_i');
+      that._t = NAME;         // collection type
+      that._i = create(null); // index
+      that._f = undefined;    // first entry
+      that._l = undefined;    // last entry
+      that[SIZE] = 0;         // size
+      if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
+    });
+    redefineAll(C.prototype, {
+      // 23.1.3.1 Map.prototype.clear()
+      // 23.2.3.2 Set.prototype.clear()
+      clear: function clear() {
+        for (var that = validate(this, NAME), data = that._i, entry = that._f; entry; entry = entry.n) {
+          entry.r = true;
+          if (entry.p) entry.p = entry.p.n = undefined;
+          delete data[entry.i];
+        }
+        that._f = that._l = undefined;
+        that[SIZE] = 0;
+      },
+      // 23.1.3.3 Map.prototype.delete(key)
+      // 23.2.3.4 Set.prototype.delete(value)
+      'delete': function (key) {
+        var that = validate(this, NAME);
+        var entry = getEntry(that, key);
+        if (entry) {
+          var next = entry.n;
+          var prev = entry.p;
+          delete that._i[entry.i];
+          entry.r = true;
+          if (prev) prev.n = next;
+          if (next) next.p = prev;
+          if (that._f == entry) that._f = next;
+          if (that._l == entry) that._l = prev;
+          that[SIZE]--;
+        } return !!entry;
+      },
+      // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)
+      // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)
+      forEach: function forEach(callbackfn /* , that = undefined */) {
+        validate(this, NAME);
+        var f = ctx(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);
+        var entry;
+        while (entry = entry ? entry.n : this._f) {
+          f(entry.v, entry.k, this);
+          // revert to the last existing entry
+          while (entry && entry.r) entry = entry.p;
+        }
+      },
+      // 23.1.3.7 Map.prototype.has(key)
+      // 23.2.3.7 Set.prototype.has(value)
+      has: function has(key) {
+        return !!getEntry(validate(this, NAME), key);
+      }
+    });
+    if (DESCRIPTORS) dP(C.prototype, 'size', {
+      get: function () {
+        return validate(this, NAME)[SIZE];
+      }
+    });
+    return C;
+  },
+  def: function (that, key, value) {
+    var entry = getEntry(that, key);
+    var prev, index;
+    // change existing entry
+    if (entry) {
+      entry.v = value;
+    // create new entry
+    } else {
+      that._l = entry = {
+        i: index = fastKey(key, true), // <- index
+        k: key,                        // <- key
+        v: value,                      // <- value
+        p: prev = that._l,             // <- previous entry
+        n: undefined,                  // <- next entry
+        r: false                       // <- removed
+      };
+      if (!that._f) that._f = entry;
+      if (prev) prev.n = entry;
+      that[SIZE]++;
+      // add to index
+      if (index !== 'F') that._i[index] = entry;
+    } return that;
+  },
+  getEntry: getEntry,
+  setStrong: function (C, NAME, IS_MAP) {
+    // add .keys, .values, .entries, [@@iterator]
+    // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11
+    $iterDefine(C, NAME, function (iterated, kind) {
+      this._t = validate(iterated, NAME); // target
+      this._k = kind;                     // kind
+      this._l = undefined;                // previous
+    }, function () {
+      var that = this;
+      var kind = that._k;
+      var entry = that._l;
+      // revert to the last existing entry
+      while (entry && entry.r) entry = entry.p;
+      // get next entry
+      if (!that._t || !(that._l = entry = entry ? entry.n : that._t._f)) {
+        // or finish the iteration
+        that._t = undefined;
+        return step(1);
+      }
+      // return step by kind
+      if (kind == 'keys') return step(0, entry.k);
+      if (kind == 'values') return step(0, entry.v);
+      return step(0, [entry.k, entry.v]);
+    }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);
+
+    // add [@@species], 23.1.2.2, 23.2.2.2
+    setSpecies(NAME);
+  }
+};
+
+},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_for-of":"../node_modules/core-js/modules/_for-of.js","./_iter-define":"../node_modules/core-js/modules/_iter-define.js","./_iter-step":"../node_modules/core-js/modules/_iter-step.js","./_set-species":"../node_modules/core-js/modules/_set-species.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js"}],"../node_modules/core-js/modules/_object-pie.js":[function(require,module,exports) {
+exports.f = {}.propertyIsEnumerable;
+
+},{}],"../node_modules/core-js/modules/_object-gopd.js":[function(require,module,exports) {
+var pIE = require('./_object-pie');
+var createDesc = require('./_property-desc');
+var toIObject = require('./_to-iobject');
+var toPrimitive = require('./_to-primitive');
+var has = require('./_has');
+var IE8_DOM_DEFINE = require('./_ie8-dom-define');
+var gOPD = Object.getOwnPropertyDescriptor;
+
+exports.f = require('./_descriptors') ? gOPD : function getOwnPropertyDescriptor(O, P) {
+  O = toIObject(O);
+  P = toPrimitive(P, true);
+  if (IE8_DOM_DEFINE) try {
+    return gOPD(O, P);
+  } catch (e) { /* empty */ }
+  if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
+};
+
+},{"./_object-pie":"../node_modules/core-js/modules/_object-pie.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_has":"../node_modules/core-js/modules/_has.js","./_ie8-dom-define":"../node_modules/core-js/modules/_ie8-dom-define.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_set-proto.js":[function(require,module,exports) {
+// Works with __proto__ only. Old v8 can't work with null proto objects.
+/* eslint-disable no-proto */
+var isObject = require('./_is-object');
+var anObject = require('./_an-object');
+var check = function (O, proto) {
+  anObject(O);
+  if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
+};
+module.exports = {
+  set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
+    function (test, buggy, set) {
+      try {
+        set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);
+        set(test, []);
+        buggy = !(test instanceof Array);
+      } catch (e) { buggy = true; }
+      return function setPrototypeOf(O, proto) {
+        check(O, proto);
+        if (buggy) O.__proto__ = proto;
+        else set(O, proto);
+        return O;
+      };
+    }({}, false) : undefined),
+  check: check
+};
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js"}],"../node_modules/core-js/modules/_inherit-if-required.js":[function(require,module,exports) {
+var isObject = require('./_is-object');
+var setPrototypeOf = require('./_set-proto').set;
+module.exports = function (that, target, C) {
+  var S = target.constructor;
+  var P;
+  if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {
+    setPrototypeOf(that, P);
+  } return that;
+};
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_set-proto":"../node_modules/core-js/modules/_set-proto.js"}],"../node_modules/core-js/modules/_collection.js":[function(require,module,exports) {
+
+'use strict';
+var global = require('./_global');
+var $export = require('./_export');
+var redefine = require('./_redefine');
+var redefineAll = require('./_redefine-all');
+var meta = require('./_meta');
+var forOf = require('./_for-of');
+var anInstance = require('./_an-instance');
+var isObject = require('./_is-object');
+var fails = require('./_fails');
+var $iterDetect = require('./_iter-detect');
+var setToStringTag = require('./_set-to-string-tag');
+var inheritIfRequired = require('./_inherit-if-required');
+
+module.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {
+  var Base = global[NAME];
+  var C = Base;
+  var ADDER = IS_MAP ? 'set' : 'add';
+  var proto = C && C.prototype;
+  var O = {};
+  var fixMethod = function (KEY) {
+    var fn = proto[KEY];
+    redefine(proto, KEY,
+      KEY == 'delete' ? function (a) {
+        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
+      } : KEY == 'has' ? function has(a) {
+        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
+      } : KEY == 'get' ? function get(a) {
+        return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);
+      } : KEY == 'add' ? function add(a) { fn.call(this, a === 0 ? 0 : a); return this; }
+        : function set(a, b) { fn.call(this, a === 0 ? 0 : a, b); return this; }
+    );
+  };
+  if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {
+    new C().entries().next();
+  }))) {
+    // create collection constructor
+    C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
+    redefineAll(C.prototype, methods);
+    meta.NEED = true;
+  } else {
+    var instance = new C();
+    // early implementations not supports chaining
+    var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;
+    // V8 ~  Chromium 40- weak-collections throws on primitives, but should return false
+    var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });
+    // most early implementations doesn't supports iterables, most modern - not close it correctly
+    var ACCEPT_ITERABLES = $iterDetect(function (iter) { new C(iter); }); // eslint-disable-line no-new
+    // for early implementations -0 and +0 not the same
+    var BUGGY_ZERO = !IS_WEAK && fails(function () {
+      // V8 ~ Chromium 42- fails only with 5+ elements
+      var $instance = new C();
+      var index = 5;
+      while (index--) $instance[ADDER](index, index);
+      return !$instance.has(-0);
+    });
+    if (!ACCEPT_ITERABLES) {
+      C = wrapper(function (target, iterable) {
+        anInstance(target, C, NAME);
+        var that = inheritIfRequired(new Base(), target, C);
+        if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
+        return that;
+      });
+      C.prototype = proto;
+      proto.constructor = C;
+    }
+    if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {
+      fixMethod('delete');
+      fixMethod('has');
+      IS_MAP && fixMethod('get');
+    }
+    if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);
+    // weak collections should not contains .clear method
+    if (IS_WEAK && proto.clear) delete proto.clear;
+  }
+
+  setToStringTag(C, NAME);
+
+  O[NAME] = C;
+  $export($export.G + $export.W + $export.F * (C != Base), O);
+
+  if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);
+
+  return C;
+};
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_export":"../node_modules/core-js/modules/_export.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_for-of":"../node_modules/core-js/modules/_for-of.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_iter-detect":"../node_modules/core-js/modules/_iter-detect.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_inherit-if-required":"../node_modules/core-js/modules/_inherit-if-required.js"}],"../node_modules/core-js/modules/es6.map.js":[function(require,module,exports) {
+'use strict';
+var strong = require('./_collection-strong');
+var validate = require('./_validate-collection');
+var MAP = 'Map';
+
+// 23.1 Map Objects
+module.exports = require('./_collection')(MAP, function (get) {
+  return function Map() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
+}, {
+  // 23.1.3.6 Map.prototype.get(key)
+  get: function get(key) {
+    var entry = strong.getEntry(validate(this, MAP), key);
+    return entry && entry.v;
+  },
+  // 23.1.3.9 Map.prototype.set(key, value)
+  set: function set(key, value) {
+    return strong.def(validate(this, MAP), key === 0 ? 0 : key, value);
+  }
+}, strong, true);
+
+},{"./_collection-strong":"../node_modules/core-js/modules/_collection-strong.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js","./_collection":"../node_modules/core-js/modules/_collection.js"}],"../node_modules/core-js/modules/_math-log1p.js":[function(require,module,exports) {
+// 20.2.2.20 Math.log1p(x)
+module.exports = Math.log1p || function log1p(x) {
+  return (x = +x) > -1e-8 && x < 1e-8 ? x - x * x / 2 : Math.log(1 + x);
+};
+
+},{}],"../node_modules/core-js/modules/es6.math.acosh.js":[function(require,module,exports) {
+// 20.2.2.3 Math.acosh(x)
+var $export = require('./_export');
+var log1p = require('./_math-log1p');
+var sqrt = Math.sqrt;
+var $acosh = Math.acosh;
+
+$export($export.S + $export.F * !($acosh
+  // V8 bug: https://code.google.com/p/v8/issues/detail?id=3509
+  && Math.floor($acosh(Number.MAX_VALUE)) == 710
+  // Tor Browser bug: Math.acosh(Infinity) -> NaN
+  && $acosh(Infinity) == Infinity
+), 'Math', {
+  acosh: function acosh(x) {
+    return (x = +x) < 1 ? NaN : x > 94906265.62425156
+      ? Math.log(x) + Math.LN2
+      : log1p(x - 1 + sqrt(x - 1) * sqrt(x + 1));
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-log1p":"../node_modules/core-js/modules/_math-log1p.js"}],"../node_modules/core-js/modules/es6.math.asinh.js":[function(require,module,exports) {
+// 20.2.2.5 Math.asinh(x)
+var $export = require('./_export');
+var $asinh = Math.asinh;
+
+function asinh(x) {
+  return !isFinite(x = +x) || x == 0 ? x : x < 0 ? -asinh(-x) : Math.log(x + Math.sqrt(x * x + 1));
+}
+
+// Tor Browser bug: Math.asinh(0) -> -0
+$export($export.S + $export.F * !($asinh && 1 / $asinh(0) > 0), 'Math', { asinh: asinh });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.atanh.js":[function(require,module,exports) {
+// 20.2.2.7 Math.atanh(x)
+var $export = require('./_export');
+var $atanh = Math.atanh;
+
+// Tor Browser bug: Math.atanh(-0) -> 0
+$export($export.S + $export.F * !($atanh && 1 / $atanh(-0) < 0), 'Math', {
+  atanh: function atanh(x) {
+    return (x = +x) == 0 ? x : Math.log((1 + x) / (1 - x)) / 2;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_math-sign.js":[function(require,module,exports) {
+// 20.2.2.28 Math.sign(x)
+module.exports = Math.sign || function sign(x) {
+  // eslint-disable-next-line no-self-compare
+  return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
+};
+
+},{}],"../node_modules/core-js/modules/es6.math.cbrt.js":[function(require,module,exports) {
+// 20.2.2.9 Math.cbrt(x)
+var $export = require('./_export');
+var sign = require('./_math-sign');
+
+$export($export.S, 'Math', {
+  cbrt: function cbrt(x) {
+    return sign(x = +x) * Math.pow(Math.abs(x), 1 / 3);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-sign":"../node_modules/core-js/modules/_math-sign.js"}],"../node_modules/core-js/modules/es6.math.clz32.js":[function(require,module,exports) {
+// 20.2.2.11 Math.clz32(x)
+var $export = require('./_export');
+
+$export($export.S, 'Math', {
+  clz32: function clz32(x) {
+    return (x >>>= 0) ? 31 - Math.floor(Math.log(x + 0.5) * Math.LOG2E) : 32;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.cosh.js":[function(require,module,exports) {
+// 20.2.2.12 Math.cosh(x)
+var $export = require('./_export');
+var exp = Math.exp;
+
+$export($export.S, 'Math', {
+  cosh: function cosh(x) {
+    return (exp(x = +x) + exp(-x)) / 2;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_math-expm1.js":[function(require,module,exports) {
+// 20.2.2.14 Math.expm1(x)
+var $expm1 = Math.expm1;
+module.exports = (!$expm1
+  // Old FF bug
+  || $expm1(10) > 22025.465794806719 || $expm1(10) < 22025.4657948067165168
+  // Tor Browser bug
+  || $expm1(-2e-17) != -2e-17
+) ? function expm1(x) {
+  return (x = +x) == 0 ? x : x > -1e-6 && x < 1e-6 ? x + x * x / 2 : Math.exp(x) - 1;
+} : $expm1;
+
+},{}],"../node_modules/core-js/modules/es6.math.expm1.js":[function(require,module,exports) {
+// 20.2.2.14 Math.expm1(x)
+var $export = require('./_export');
+var $expm1 = require('./_math-expm1');
+
+$export($export.S + $export.F * ($expm1 != Math.expm1), 'Math', { expm1: $expm1 });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-expm1":"../node_modules/core-js/modules/_math-expm1.js"}],"../node_modules/core-js/modules/_math-fround.js":[function(require,module,exports) {
+// 20.2.2.16 Math.fround(x)
+var sign = require('./_math-sign');
+var pow = Math.pow;
+var EPSILON = pow(2, -52);
+var EPSILON32 = pow(2, -23);
+var MAX32 = pow(2, 127) * (2 - EPSILON32);
+var MIN32 = pow(2, -126);
+
+var roundTiesToEven = function (n) {
+  return n + 1 / EPSILON - 1 / EPSILON;
+};
+
+module.exports = Math.fround || function fround(x) {
+  var $abs = Math.abs(x);
+  var $sign = sign(x);
+  var a, result;
+  if ($abs < MIN32) return $sign * roundTiesToEven($abs / MIN32 / EPSILON32) * MIN32 * EPSILON32;
+  a = (1 + EPSILON32 / EPSILON) * $abs;
+  result = a - (a - $abs);
+  // eslint-disable-next-line no-self-compare
+  if (result > MAX32 || result != result) return $sign * Infinity;
+  return $sign * result;
+};
+
+},{"./_math-sign":"../node_modules/core-js/modules/_math-sign.js"}],"../node_modules/core-js/modules/es6.math.fround.js":[function(require,module,exports) {
+// 20.2.2.16 Math.fround(x)
+var $export = require('./_export');
+
+$export($export.S, 'Math', { fround: require('./_math-fround') });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-fround":"../node_modules/core-js/modules/_math-fround.js"}],"../node_modules/core-js/modules/es6.math.hypot.js":[function(require,module,exports) {
+// 20.2.2.17 Math.hypot([value1[, value2[, … ]]])
+var $export = require('./_export');
+var abs = Math.abs;
+
+$export($export.S, 'Math', {
+  hypot: function hypot(value1, value2) { // eslint-disable-line no-unused-vars
+    var sum = 0;
+    var i = 0;
+    var aLen = arguments.length;
+    var larg = 0;
+    var arg, div;
+    while (i < aLen) {
+      arg = abs(arguments[i++]);
+      if (larg < arg) {
+        div = larg / arg;
+        sum = sum * div * div + 1;
+        larg = arg;
+      } else if (arg > 0) {
+        div = arg / larg;
+        sum += div * div;
+      } else sum += arg;
+    }
+    return larg === Infinity ? Infinity : larg * Math.sqrt(sum);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.imul.js":[function(require,module,exports) {
+// 20.2.2.18 Math.imul(x, y)
+var $export = require('./_export');
+var $imul = Math.imul;
+
+// some WebKit versions fails with big numbers, some has wrong arity
+$export($export.S + $export.F * require('./_fails')(function () {
+  return $imul(0xffffffff, 5) != -5 || $imul.length != 2;
+}), 'Math', {
+  imul: function imul(x, y) {
+    var UINT16 = 0xffff;
+    var xn = +x;
+    var yn = +y;
+    var xl = UINT16 & xn;
+    var yl = UINT16 & yn;
+    return 0 | xl * yl + ((UINT16 & xn >>> 16) * yl + xl * (UINT16 & yn >>> 16) << 16 >>> 0);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.math.log1p.js":[function(require,module,exports) {
+// 20.2.2.20 Math.log1p(x)
+var $export = require('./_export');
+
+$export($export.S, 'Math', { log1p: require('./_math-log1p') });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-log1p":"../node_modules/core-js/modules/_math-log1p.js"}],"../node_modules/core-js/modules/es6.math.log10.js":[function(require,module,exports) {
+// 20.2.2.21 Math.log10(x)
+var $export = require('./_export');
+
+$export($export.S, 'Math', {
+  log10: function log10(x) {
+    return Math.log(x) * Math.LOG10E;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.log2.js":[function(require,module,exports) {
+// 20.2.2.22 Math.log2(x)
+var $export = require('./_export');
+
+$export($export.S, 'Math', {
+  log2: function log2(x) {
+    return Math.log(x) / Math.LN2;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.sign.js":[function(require,module,exports) {
+// 20.2.2.28 Math.sign(x)
+var $export = require('./_export');
+
+$export($export.S, 'Math', { sign: require('./_math-sign') });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-sign":"../node_modules/core-js/modules/_math-sign.js"}],"../node_modules/core-js/modules/es6.math.sinh.js":[function(require,module,exports) {
+// 20.2.2.30 Math.sinh(x)
+var $export = require('./_export');
+var expm1 = require('./_math-expm1');
+var exp = Math.exp;
+
+// V8 near Chromium 38 has a problem with very small numbers
+$export($export.S + $export.F * require('./_fails')(function () {
+  return !Math.sinh(-2e-17) != -2e-17;
+}), 'Math', {
+  sinh: function sinh(x) {
+    return Math.abs(x = +x) < 1
+      ? (expm1(x) - expm1(-x)) / 2
+      : (exp(x - 1) - exp(-x - 1)) * (Math.E / 2);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-expm1":"../node_modules/core-js/modules/_math-expm1.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.math.tanh.js":[function(require,module,exports) {
+// 20.2.2.33 Math.tanh(x)
+var $export = require('./_export');
+var expm1 = require('./_math-expm1');
+var exp = Math.exp;
+
+$export($export.S, 'Math', {
+  tanh: function tanh(x) {
+    var a = expm1(x = +x);
+    var b = expm1(-x);
+    return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(x) + exp(-x));
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-expm1":"../node_modules/core-js/modules/_math-expm1.js"}],"../node_modules/core-js/modules/es6.math.trunc.js":[function(require,module,exports) {
+// 20.2.2.34 Math.trunc(x)
+var $export = require('./_export');
+
+$export($export.S, 'Math', {
+  trunc: function trunc(it) {
+    return (it > 0 ? Math.floor : Math.ceil)(it);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_object-gopn.js":[function(require,module,exports) {
+// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
+var $keys = require('./_object-keys-internal');
+var hiddenKeys = require('./_enum-bug-keys').concat('length', 'prototype');
+
+exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
+  return $keys(O, hiddenKeys);
+};
+
+},{"./_object-keys-internal":"../node_modules/core-js/modules/_object-keys-internal.js","./_enum-bug-keys":"../node_modules/core-js/modules/_enum-bug-keys.js"}],"../node_modules/core-js/modules/_string-ws.js":[function(require,module,exports) {
+module.exports = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
+  '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';
+
+},{}],"../node_modules/core-js/modules/_string-trim.js":[function(require,module,exports) {
+var $export = require('./_export');
+var defined = require('./_defined');
+var fails = require('./_fails');
+var spaces = require('./_string-ws');
+var space = '[' + spaces + ']';
+var non = '\u200b\u0085';
+var ltrim = RegExp('^' + space + space + '*');
+var rtrim = RegExp(space + space + '*$');
+
+var exporter = function (KEY, exec, ALIAS) {
+  var exp = {};
+  var FORCE = fails(function () {
+    return !!spaces[KEY]() || non[KEY]() != non;
+  });
+  var fn = exp[KEY] = FORCE ? exec(trim) : spaces[KEY];
+  if (ALIAS) exp[ALIAS] = fn;
+  $export($export.P + $export.F * FORCE, 'String', exp);
+};
+
+// 1 -> String#trimLeft
+// 2 -> String#trimRight
+// 3 -> String#trim
+var trim = exporter.trim = function (string, TYPE) {
+  string = String(defined(string));
+  if (TYPE & 1) string = string.replace(ltrim, '');
+  if (TYPE & 2) string = string.replace(rtrim, '');
+  return string;
+};
+
+module.exports = exporter;
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_defined":"../node_modules/core-js/modules/_defined.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_string-ws":"../node_modules/core-js/modules/_string-ws.js"}],"../node_modules/core-js/modules/es6.number.constructor.js":[function(require,module,exports) {
+
+'use strict';
+var global = require('./_global');
+var has = require('./_has');
+var cof = require('./_cof');
+var inheritIfRequired = require('./_inherit-if-required');
+var toPrimitive = require('./_to-primitive');
+var fails = require('./_fails');
+var gOPN = require('./_object-gopn').f;
+var gOPD = require('./_object-gopd').f;
+var dP = require('./_object-dp').f;
+var $trim = require('./_string-trim').trim;
+var NUMBER = 'Number';
+var $Number = global[NUMBER];
+var Base = $Number;
+var proto = $Number.prototype;
+// Opera ~12 has broken Object#toString
+var BROKEN_COF = cof(require('./_object-create')(proto)) == NUMBER;
+var TRIM = 'trim' in String.prototype;
+
+// 7.1.3 ToNumber(argument)
+var toNumber = function (argument) {
+  var it = toPrimitive(argument, false);
+  if (typeof it == 'string' && it.length > 2) {
+    it = TRIM ? it.trim() : $trim(it, 3);
+    var first = it.charCodeAt(0);
+    var third, radix, maxCode;
+    if (first === 43 || first === 45) {
+      third = it.charCodeAt(2);
+      if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix
+    } else if (first === 48) {
+      switch (it.charCodeAt(1)) {
+        case 66: case 98: radix = 2; maxCode = 49; break; // fast equal /^0b[01]+$/i
+        case 79: case 111: radix = 8; maxCode = 55; break; // fast equal /^0o[0-7]+$/i
+        default: return +it;
+      }
+      for (var digits = it.slice(2), i = 0, l = digits.length, code; i < l; i++) {
+        code = digits.charCodeAt(i);
+        // parseInt parses a string to a first unavailable symbol
+        // but ToNumber should return NaN if a string contains unavailable symbols
+        if (code < 48 || code > maxCode) return NaN;
+      } return parseInt(digits, radix);
+    }
+  } return +it;
+};
+
+if (!$Number(' 0o1') || !$Number('0b1') || $Number('+0x1')) {
+  $Number = function Number(value) {
+    var it = arguments.length < 1 ? 0 : value;
+    var that = this;
+    return that instanceof $Number
+      // check on 1..constructor(foo) case
+      && (BROKEN_COF ? fails(function () { proto.valueOf.call(that); }) : cof(that) != NUMBER)
+        ? inheritIfRequired(new Base(toNumber(it)), that, $Number) : toNumber(it);
+  };
+  for (var keys = require('./_descriptors') ? gOPN(Base) : (
+    // ES3:
+    'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
+    // ES6 (in case, if modules with ES6 Number statics required before):
+    'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +
+    'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'
+  ).split(','), j = 0, key; keys.length > j; j++) {
+    if (has(Base, key = keys[j]) && !has($Number, key)) {
+      dP($Number, key, gOPD(Base, key));
+    }
+  }
+  $Number.prototype = proto;
+  proto.constructor = $Number;
+  require('./_redefine')(global, NUMBER, $Number);
+}
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_has":"../node_modules/core-js/modules/_has.js","./_cof":"../node_modules/core-js/modules/_cof.js","./_inherit-if-required":"../node_modules/core-js/modules/_inherit-if-required.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_string-trim":"../node_modules/core-js/modules/_string-trim.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_redefine":"../node_modules/core-js/modules/_redefine.js"}],"../node_modules/core-js/modules/es6.number.epsilon.js":[function(require,module,exports) {
+// 20.1.2.1 Number.EPSILON
+var $export = require('./_export');
+
+$export($export.S, 'Number', { EPSILON: Math.pow(2, -52) });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.number.is-finite.js":[function(require,module,exports) {
+// 20.1.2.2 Number.isFinite(number)
+var $export = require('./_export');
+var _isFinite = require('./_global').isFinite;
+
+$export($export.S, 'Number', {
+  isFinite: function isFinite(it) {
+    return typeof it == 'number' && _isFinite(it);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_is-integer.js":[function(require,module,exports) {
+// 20.1.2.3 Number.isInteger(number)
+var isObject = require('./_is-object');
+var floor = Math.floor;
+module.exports = function isInteger(it) {
+  return !isObject(it) && isFinite(it) && floor(it) === it;
+};
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/es6.number.is-integer.js":[function(require,module,exports) {
+// 20.1.2.3 Number.isInteger(number)
+var $export = require('./_export');
+
+$export($export.S, 'Number', { isInteger: require('./_is-integer') });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_is-integer":"../node_modules/core-js/modules/_is-integer.js"}],"../node_modules/core-js/modules/es6.number.is-nan.js":[function(require,module,exports) {
+// 20.1.2.4 Number.isNaN(number)
+var $export = require('./_export');
+
+$export($export.S, 'Number', {
+  isNaN: function isNaN(number) {
+    // eslint-disable-next-line no-self-compare
+    return number != number;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.number.is-safe-integer.js":[function(require,module,exports) {
+// 20.1.2.5 Number.isSafeInteger(number)
+var $export = require('./_export');
+var isInteger = require('./_is-integer');
+var abs = Math.abs;
+
+$export($export.S, 'Number', {
+  isSafeInteger: function isSafeInteger(number) {
+    return isInteger(number) && abs(number) <= 0x1fffffffffffff;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_is-integer":"../node_modules/core-js/modules/_is-integer.js"}],"../node_modules/core-js/modules/es6.number.max-safe-integer.js":[function(require,module,exports) {
+// 20.1.2.6 Number.MAX_SAFE_INTEGER
+var $export = require('./_export');
+
+$export($export.S, 'Number', { MAX_SAFE_INTEGER: 0x1fffffffffffff });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.number.min-safe-integer.js":[function(require,module,exports) {
+// 20.1.2.10 Number.MIN_SAFE_INTEGER
+var $export = require('./_export');
+
+$export($export.S, 'Number', { MIN_SAFE_INTEGER: -0x1fffffffffffff });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_parse-float.js":[function(require,module,exports) {
+var $parseFloat = require('./_global').parseFloat;
+var $trim = require('./_string-trim').trim;
+
+module.exports = 1 / $parseFloat(require('./_string-ws') + '-0') !== -Infinity ? function parseFloat(str) {
+  var string = $trim(String(str), 3);
+  var result = $parseFloat(string);
+  return result === 0 && string.charAt(0) == '-' ? -0 : result;
+} : $parseFloat;
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_string-trim":"../node_modules/core-js/modules/_string-trim.js","./_string-ws":"../node_modules/core-js/modules/_string-ws.js"}],"../node_modules/core-js/modules/es6.number.parse-float.js":[function(require,module,exports) {
+var $export = require('./_export');
+var $parseFloat = require('./_parse-float');
+// 20.1.2.12 Number.parseFloat(string)
+$export($export.S + $export.F * (Number.parseFloat != $parseFloat), 'Number', { parseFloat: $parseFloat });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_parse-float":"../node_modules/core-js/modules/_parse-float.js"}],"../node_modules/core-js/modules/_parse-int.js":[function(require,module,exports) {
+var $parseInt = require('./_global').parseInt;
+var $trim = require('./_string-trim').trim;
+var ws = require('./_string-ws');
+var hex = /^[-+]?0[xX]/;
+
+module.exports = $parseInt(ws + '08') !== 8 || $parseInt(ws + '0x16') !== 22 ? function parseInt(str, radix) {
+  var string = $trim(String(str), 3);
+  return $parseInt(string, (radix >>> 0) || (hex.test(string) ? 16 : 10));
+} : $parseInt;
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_string-trim":"../node_modules/core-js/modules/_string-trim.js","./_string-ws":"../node_modules/core-js/modules/_string-ws.js"}],"../node_modules/core-js/modules/es6.number.parse-int.js":[function(require,module,exports) {
+var $export = require('./_export');
+var $parseInt = require('./_parse-int');
+// 20.1.2.13 Number.parseInt(string, radix)
+$export($export.S + $export.F * (Number.parseInt != $parseInt), 'Number', { parseInt: $parseInt });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_parse-int":"../node_modules/core-js/modules/_parse-int.js"}],"../node_modules/core-js/modules/_object-gops.js":[function(require,module,exports) {
+exports.f = Object.getOwnPropertySymbols;
+
+},{}],"../node_modules/core-js/modules/_object-assign.js":[function(require,module,exports) {
+'use strict';
+// 19.1.2.1 Object.assign(target, source, ...)
+var DESCRIPTORS = require('./_descriptors');
+var getKeys = require('./_object-keys');
+var gOPS = require('./_object-gops');
+var pIE = require('./_object-pie');
+var toObject = require('./_to-object');
+var IObject = require('./_iobject');
+var $assign = Object.assign;
+
+// should work with symbols and should have deterministic property order (V8 bug)
+module.exports = !$assign || require('./_fails')(function () {
+  var A = {};
+  var B = {};
+  // eslint-disable-next-line no-undef
+  var S = Symbol();
+  var K = 'abcdefghijklmnopqrst';
+  A[S] = 7;
+  K.split('').forEach(function (k) { B[k] = k; });
+  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
+}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
+  var T = toObject(target);
+  var aLen = arguments.length;
+  var index = 1;
+  var getSymbols = gOPS.f;
+  var isEnum = pIE.f;
+  while (aLen > index) {
+    var S = IObject(arguments[index++]);
+    var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
+    var length = keys.length;
+    var j = 0;
+    var key;
+    while (length > j) {
+      key = keys[j++];
+      if (!DESCRIPTORS || isEnum.call(S, key)) T[key] = S[key];
+    }
+  } return T;
+} : $assign;
+
+},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_object-gops":"../node_modules/core-js/modules/_object-gops.js","./_object-pie":"../node_modules/core-js/modules/_object-pie.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_iobject":"../node_modules/core-js/modules/_iobject.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.object.assign.js":[function(require,module,exports) {
+// 19.1.3.1 Object.assign(target, source)
+var $export = require('./_export');
+
+$export($export.S + $export.F, 'Object', { assign: require('./_object-assign') });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-assign":"../node_modules/core-js/modules/_object-assign.js"}],"../node_modules/core-js/modules/_object-forced-pam.js":[function(require,module,exports) {
+'use strict';
+// Forced replacement prototype accessors methods
+module.exports = require('./_library') || !require('./_fails')(function () {
+  var K = Math.random();
+  // In FF throws only define methods
+  // eslint-disable-next-line no-undef, no-useless-call
+  __defineSetter__.call(null, K, function () { /* empty */ });
+  delete require('./_global')[K];
+});
+
+},{"./_library":"../node_modules/core-js/modules/_library.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/es7.object.define-getter.js":[function(require,module,exports) {
+'use strict';
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var aFunction = require('./_a-function');
+var $defineProperty = require('./_object-dp');
+
+// B.2.2.2 Object.prototype.__defineGetter__(P, getter)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __defineGetter__: function __defineGetter__(P, getter) {
+    $defineProperty.f(toObject(this), P, { get: aFunction(getter), enumerable: true, configurable: true });
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-forced-pam":"../node_modules/core-js/modules/_object-forced-pam.js"}],"../node_modules/core-js/modules/es7.object.define-setter.js":[function(require,module,exports) {
+'use strict';
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var aFunction = require('./_a-function');
+var $defineProperty = require('./_object-dp');
+
+// B.2.2.3 Object.prototype.__defineSetter__(P, setter)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __defineSetter__: function __defineSetter__(P, setter) {
+    $defineProperty.f(toObject(this), P, { set: aFunction(setter), enumerable: true, configurable: true });
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-forced-pam":"../node_modules/core-js/modules/_object-forced-pam.js"}],"../node_modules/core-js/modules/_object-to-array.js":[function(require,module,exports) {
+var DESCRIPTORS = require('./_descriptors');
+var getKeys = require('./_object-keys');
+var toIObject = require('./_to-iobject');
+var isEnum = require('./_object-pie').f;
+module.exports = function (isEntries) {
+  return function (it) {
+    var O = toIObject(it);
+    var keys = getKeys(O);
+    var length = keys.length;
+    var i = 0;
+    var result = [];
+    var key;
+    while (length > i) {
+      key = keys[i++];
+      if (!DESCRIPTORS || isEnum.call(O, key)) {
+        result.push(isEntries ? [key, O[key]] : O[key]);
+      }
+    }
+    return result;
+  };
+};
+
+},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_object-pie":"../node_modules/core-js/modules/_object-pie.js"}],"../node_modules/core-js/modules/es7.object.entries.js":[function(require,module,exports) {
+// https://github.com/tc39/proposal-object-values-entries
+var $export = require('./_export');
+var $entries = require('./_object-to-array')(true);
+
+$export($export.S, 'Object', {
+  entries: function entries(it) {
+    return $entries(it);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-to-array":"../node_modules/core-js/modules/_object-to-array.js"}],"../node_modules/core-js/modules/_object-sap.js":[function(require,module,exports) {
+// most Object methods by ES6 should accept primitives
+var $export = require('./_export');
+var core = require('./_core');
+var fails = require('./_fails');
+module.exports = function (KEY, exec) {
+  var fn = (core.Object || {})[KEY] || Object[KEY];
+  var exp = {};
+  exp[KEY] = exec(fn);
+  $export($export.S + $export.F * fails(function () { fn(1); }), 'Object', exp);
+};
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_core":"../node_modules/core-js/modules/_core.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.object.freeze.js":[function(require,module,exports) {
+// 19.1.2.5 Object.freeze(O)
+var isObject = require('./_is-object');
+var meta = require('./_meta').onFreeze;
+
+require('./_object-sap')('freeze', function ($freeze) {
+  return function freeze(it) {
+    return $freeze && isObject(it) ? $freeze(meta(it)) : it;
+  };
+});
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.get-own-property-descriptor.js":[function(require,module,exports) {
+// 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
+var toIObject = require('./_to-iobject');
+var $getOwnPropertyDescriptor = require('./_object-gopd').f;
+
+require('./_object-sap')('getOwnPropertyDescriptor', function () {
+  return function getOwnPropertyDescriptor(it, key) {
+    return $getOwnPropertyDescriptor(toIObject(it), key);
+  };
+});
+
+},{"./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/_own-keys.js":[function(require,module,exports) {
+// all object keys, includes non-enumerable and symbols
+var gOPN = require('./_object-gopn');
+var gOPS = require('./_object-gops');
+var anObject = require('./_an-object');
+var Reflect = require('./_global').Reflect;
+module.exports = Reflect && Reflect.ownKeys || function ownKeys(it) {
+  var keys = gOPN.f(anObject(it));
+  var getSymbols = gOPS.f;
+  return getSymbols ? keys.concat(getSymbols(it)) : keys;
+};
+
+},{"./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_object-gops":"../node_modules/core-js/modules/_object-gops.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/es7.object.get-own-property-descriptors.js":[function(require,module,exports) {
+// https://github.com/tc39/proposal-object-getownpropertydescriptors
+var $export = require('./_export');
+var ownKeys = require('./_own-keys');
+var toIObject = require('./_to-iobject');
+var gOPD = require('./_object-gopd');
+var createProperty = require('./_create-property');
+
+$export($export.S, 'Object', {
+  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {
+    var O = toIObject(object);
+    var getDesc = gOPD.f;
+    var keys = ownKeys(O);
+    var result = {};
+    var i = 0;
+    var key, desc;
+    while (keys.length > i) {
+      desc = getDesc(O, key = keys[i++]);
+      if (desc !== undefined) createProperty(result, key, desc);
+    }
+    return result;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_own-keys":"../node_modules/core-js/modules/_own-keys.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_create-property":"../node_modules/core-js/modules/_create-property.js"}],"../node_modules/core-js/modules/_object-gopn-ext.js":[function(require,module,exports) {
+// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
+var toIObject = require('./_to-iobject');
+var gOPN = require('./_object-gopn').f;
+var toString = {}.toString;
+
+var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
+  ? Object.getOwnPropertyNames(window) : [];
+
+var getWindowNames = function (it) {
+  try {
+    return gOPN(it);
+  } catch (e) {
+    return windowNames.slice();
+  }
+};
+
+module.exports.f = function getOwnPropertyNames(it) {
+  return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));
+};
+
+},{"./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js"}],"../node_modules/core-js/modules/es6.object.get-own-property-names.js":[function(require,module,exports) {
+// 19.1.2.7 Object.getOwnPropertyNames(O)
+require('./_object-sap')('getOwnPropertyNames', function () {
+  return require('./_object-gopn-ext').f;
+});
+
+},{"./_object-sap":"../node_modules/core-js/modules/_object-sap.js","./_object-gopn-ext":"../node_modules/core-js/modules/_object-gopn-ext.js"}],"../node_modules/core-js/modules/es6.object.get-prototype-of.js":[function(require,module,exports) {
+// 19.1.2.9 Object.getPrototypeOf(O)
+var toObject = require('./_to-object');
+var $getPrototypeOf = require('./_object-gpo');
+
+require('./_object-sap')('getPrototypeOf', function () {
+  return function getPrototypeOf(it) {
+    return $getPrototypeOf(toObject(it));
+  };
+});
+
+},{"./_to-object":"../node_modules/core-js/modules/_to-object.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es7.object.lookup-getter.js":[function(require,module,exports) {
+'use strict';
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var toPrimitive = require('./_to-primitive');
+var getPrototypeOf = require('./_object-gpo');
+var getOwnPropertyDescriptor = require('./_object-gopd').f;
+
+// B.2.2.4 Object.prototype.__lookupGetter__(P)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __lookupGetter__: function __lookupGetter__(P) {
+    var O = toObject(this);
+    var K = toPrimitive(P, true);
+    var D;
+    do {
+      if (D = getOwnPropertyDescriptor(O, K)) return D.get;
+    } while (O = getPrototypeOf(O));
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-forced-pam":"../node_modules/core-js/modules/_object-forced-pam.js"}],"../node_modules/core-js/modules/es7.object.lookup-setter.js":[function(require,module,exports) {
+'use strict';
+var $export = require('./_export');
+var toObject = require('./_to-object');
+var toPrimitive = require('./_to-primitive');
+var getPrototypeOf = require('./_object-gpo');
+var getOwnPropertyDescriptor = require('./_object-gopd').f;
+
+// B.2.2.5 Object.prototype.__lookupSetter__(P)
+require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
+  __lookupSetter__: function __lookupSetter__(P) {
+    var O = toObject(this);
+    var K = toPrimitive(P, true);
+    var D;
+    do {
+      if (D = getOwnPropertyDescriptor(O, K)) return D.set;
+    } while (O = getPrototypeOf(O));
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-forced-pam":"../node_modules/core-js/modules/_object-forced-pam.js"}],"../node_modules/core-js/modules/es6.object.prevent-extensions.js":[function(require,module,exports) {
+// 19.1.2.15 Object.preventExtensions(O)
+var isObject = require('./_is-object');
+var meta = require('./_meta').onFreeze;
+
+require('./_object-sap')('preventExtensions', function ($preventExtensions) {
+  return function preventExtensions(it) {
+    return $preventExtensions && isObject(it) ? $preventExtensions(meta(it)) : it;
+  };
+});
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.to-string.js":[function(require,module,exports) {
+'use strict';
+// 19.1.3.6 Object.prototype.toString()
+var classof = require('./_classof');
+var test = {};
+test[require('./_wks')('toStringTag')] = 'z';
+if (test + '' != '[object z]') {
+  require('./_redefine')(Object.prototype, 'toString', function toString() {
+    return '[object ' + classof(this) + ']';
+  }, true);
+}
+
+},{"./_classof":"../node_modules/core-js/modules/_classof.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_redefine":"../node_modules/core-js/modules/_redefine.js"}],"../node_modules/core-js/modules/_same-value.js":[function(require,module,exports) {
+// 7.2.9 SameValue(x, y)
+module.exports = Object.is || function is(x, y) {
+  // eslint-disable-next-line no-self-compare
+  return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;
+};
+
+},{}],"../node_modules/core-js/modules/es6.object.is.js":[function(require,module,exports) {
+// 19.1.3.10 Object.is(value1, value2)
+var $export = require('./_export');
+$export($export.S, 'Object', { is: require('./_same-value') });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_same-value":"../node_modules/core-js/modules/_same-value.js"}],"../node_modules/core-js/modules/es6.object.is-frozen.js":[function(require,module,exports) {
+// 19.1.2.12 Object.isFrozen(O)
+var isObject = require('./_is-object');
+
+require('./_object-sap')('isFrozen', function ($isFrozen) {
+  return function isFrozen(it) {
+    return isObject(it) ? $isFrozen ? $isFrozen(it) : false : true;
+  };
+});
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.is-sealed.js":[function(require,module,exports) {
+// 19.1.2.13 Object.isSealed(O)
+var isObject = require('./_is-object');
+
+require('./_object-sap')('isSealed', function ($isSealed) {
+  return function isSealed(it) {
+    return isObject(it) ? $isSealed ? $isSealed(it) : false : true;
+  };
+});
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.is-extensible.js":[function(require,module,exports) {
+// 19.1.2.11 Object.isExtensible(O)
+var isObject = require('./_is-object');
+
+require('./_object-sap')('isExtensible', function ($isExtensible) {
+  return function isExtensible(it) {
+    return isObject(it) ? $isExtensible ? $isExtensible(it) : true : false;
+  };
+});
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.keys.js":[function(require,module,exports) {
+// 19.1.2.14 Object.keys(O)
+var toObject = require('./_to-object');
+var $keys = require('./_object-keys');
+
+require('./_object-sap')('keys', function () {
+  return function keys(it) {
+    return $keys(toObject(it));
+  };
+});
+
+},{"./_to-object":"../node_modules/core-js/modules/_to-object.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.seal.js":[function(require,module,exports) {
+// 19.1.2.17 Object.seal(O)
+var isObject = require('./_is-object');
+var meta = require('./_meta').onFreeze;
+
+require('./_object-sap')('seal', function ($seal) {
+  return function seal(it) {
+    return $seal && isObject(it) ? $seal(meta(it)) : it;
+  };
+});
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.set-prototype-of.js":[function(require,module,exports) {
+// 19.1.3.19 Object.setPrototypeOf(O, proto)
+var $export = require('./_export');
+$export($export.S, 'Object', { setPrototypeOf: require('./_set-proto').set });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_set-proto":"../node_modules/core-js/modules/_set-proto.js"}],"../node_modules/core-js/modules/es7.object.values.js":[function(require,module,exports) {
+// https://github.com/tc39/proposal-object-values-entries
+var $export = require('./_export');
+var $values = require('./_object-to-array')(false);
+
+$export($export.S, 'Object', {
+  values: function values(it) {
+    return $values(it);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-to-array":"../node_modules/core-js/modules/_object-to-array.js"}],"../node_modules/core-js/modules/_species-constructor.js":[function(require,module,exports) {
+// 7.3.20 SpeciesConstructor(O, defaultConstructor)
+var anObject = require('./_an-object');
+var aFunction = require('./_a-function');
+var SPECIES = require('./_wks')('species');
+module.exports = function (O, D) {
+  var C = anObject(O).constructor;
+  var S;
+  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);
+};
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_invoke.js":[function(require,module,exports) {
+// fast apply, http://jsperf.lnkit.com/fast-apply/5
+module.exports = function (fn, args, that) {
+  var un = that === undefined;
+  switch (args.length) {
+    case 0: return un ? fn()
+                      : fn.call(that);
+    case 1: return un ? fn(args[0])
+                      : fn.call(that, args[0]);
+    case 2: return un ? fn(args[0], args[1])
+                      : fn.call(that, args[0], args[1]);
+    case 3: return un ? fn(args[0], args[1], args[2])
+                      : fn.call(that, args[0], args[1], args[2]);
+    case 4: return un ? fn(args[0], args[1], args[2], args[3])
+                      : fn.call(that, args[0], args[1], args[2], args[3]);
+  } return fn.apply(that, args);
+};
+
+},{}],"../node_modules/core-js/modules/_task.js":[function(require,module,exports) {
+
+
+var ctx = require('./_ctx');
+var invoke = require('./_invoke');
+var html = require('./_html');
+var cel = require('./_dom-create');
+var global = require('./_global');
+var process = global.process;
+var setTask = global.setImmediate;
+var clearTask = global.clearImmediate;
+var MessageChannel = global.MessageChannel;
+var Dispatch = global.Dispatch;
+var counter = 0;
+var queue = {};
+var ONREADYSTATECHANGE = 'onreadystatechange';
+var defer, channel, port;
+var run = function () {
+  var id = +this;
+  // eslint-disable-next-line no-prototype-builtins
+  if (queue.hasOwnProperty(id)) {
+    var fn = queue[id];
+    delete queue[id];
+    fn();
+  }
+};
+var listener = function (event) {
+  run.call(event.data);
+};
+// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
+if (!setTask || !clearTask) {
+  setTask = function setImmediate(fn) {
+    var args = [];
+    var i = 1;
+    while (arguments.length > i) args.push(arguments[i++]);
+    queue[++counter] = function () {
+      // eslint-disable-next-line no-new-func
+      invoke(typeof fn == 'function' ? fn : Function(fn), args);
+    };
+    defer(counter);
+    return counter;
+  };
+  clearTask = function clearImmediate(id) {
+    delete queue[id];
+  };
+  // Node.js 0.8-
+  if (require('./_cof')(process) == 'process') {
+    defer = function (id) {
+      process.nextTick(ctx(run, id, 1));
+    };
+  // Sphere (JS game engine) Dispatch API
+  } else if (Dispatch && Dispatch.now) {
+    defer = function (id) {
+      Dispatch.now(ctx(run, id, 1));
+    };
+  // Browsers with MessageChannel, includes WebWorkers
+  } else if (MessageChannel) {
+    channel = new MessageChannel();
+    port = channel.port2;
+    channel.port1.onmessage = listener;
+    defer = ctx(port.postMessage, port, 1);
+  // Browsers with postMessage, skip WebWorkers
+  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
+  } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {
+    defer = function (id) {
+      global.postMessage(id + '', '*');
+    };
+    global.addEventListener('message', listener, false);
+  // IE8-
+  } else if (ONREADYSTATECHANGE in cel('script')) {
+    defer = function (id) {
+      html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {
+        html.removeChild(this);
+        run.call(id);
+      };
+    };
+  // Rest old browsers
+  } else {
+    defer = function (id) {
+      setTimeout(ctx(run, id, 1), 0);
+    };
+  }
+}
+module.exports = {
+  set: setTask,
+  clear: clearTask
+};
+
+},{"./_ctx":"../node_modules/core-js/modules/_ctx.js","./_invoke":"../node_modules/core-js/modules/_invoke.js","./_html":"../node_modules/core-js/modules/_html.js","./_dom-create":"../node_modules/core-js/modules/_dom-create.js","./_global":"../node_modules/core-js/modules/_global.js","./_cof":"../node_modules/core-js/modules/_cof.js"}],"../node_modules/core-js/modules/_microtask.js":[function(require,module,exports) {
+
+
+var global = require('./_global');
+var macrotask = require('./_task').set;
+var Observer = global.MutationObserver || global.WebKitMutationObserver;
+var process = global.process;
+var Promise = global.Promise;
+var isNode = require('./_cof')(process) == 'process';
+
+module.exports = function () {
+  var head, last, notify;
+
+  var flush = function () {
+    var parent, fn;
+    if (isNode && (parent = process.domain)) parent.exit();
+    while (head) {
+      fn = head.fn;
+      head = head.next;
+      try {
+        fn();
+      } catch (e) {
+        if (head) notify();
+        else last = undefined;
+        throw e;
+      }
+    } last = undefined;
+    if (parent) parent.enter();
+  };
+
+  // Node.js
+  if (isNode) {
+    notify = function () {
+      process.nextTick(flush);
+    };
+  // browsers with MutationObserver, except iOS Safari - https://github.com/zloirock/core-js/issues/339
+  } else if (Observer && !(global.navigator && global.navigator.standalone)) {
+    var toggle = true;
+    var node = document.createTextNode('');
+    new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new
+    notify = function () {
+      node.data = toggle = !toggle;
+    };
+  // environments with maybe non-completely correct, but existent Promise
+  } else if (Promise && Promise.resolve) {
+    // Promise.resolve without an argument throws an error in LG WebOS 2
+    var promise = Promise.resolve(undefined);
+    notify = function () {
+      promise.then(flush);
+    };
+  // for other environments - macrotask based on:
+  // - setImmediate
+  // - MessageChannel
+  // - window.postMessag
+  // - onreadystatechange
+  // - setTimeout
+  } else {
+    notify = function () {
+      // strange IE + webpack dev server bug - use .call(global)
+      macrotask.call(global, flush);
+    };
+  }
+
+  return function (fn) {
+    var task = { fn: fn, next: undefined };
+    if (last) last.next = task;
+    if (!head) {
+      head = task;
+      notify();
+    } last = task;
+  };
+};
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_task":"../node_modules/core-js/modules/_task.js","./_cof":"../node_modules/core-js/modules/_cof.js"}],"../node_modules/core-js/modules/_new-promise-capability.js":[function(require,module,exports) {
+'use strict';
+// 25.4.1.5 NewPromiseCapability(C)
+var aFunction = require('./_a-function');
+
+function PromiseCapability(C) {
+  var resolve, reject;
+  this.promise = new C(function ($$resolve, $$reject) {
+    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
+    resolve = $$resolve;
+    reject = $$reject;
+  });
+  this.resolve = aFunction(resolve);
+  this.reject = aFunction(reject);
+}
+
+module.exports.f = function (C) {
+  return new PromiseCapability(C);
+};
+
+},{"./_a-function":"../node_modules/core-js/modules/_a-function.js"}],"../node_modules/core-js/modules/_perform.js":[function(require,module,exports) {
+module.exports = function (exec) {
+  try {
+    return { e: false, v: exec() };
+  } catch (e) {
+    return { e: true, v: e };
+  }
+};
+
+},{}],"../node_modules/core-js/modules/_user-agent.js":[function(require,module,exports) {
+
+var global = require('./_global');
+var navigator = global.navigator;
+
+module.exports = navigator && navigator.userAgent || '';
+
+},{"./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_promise-resolve.js":[function(require,module,exports) {
+var anObject = require('./_an-object');
+var isObject = require('./_is-object');
+var newPromiseCapability = require('./_new-promise-capability');
+
+module.exports = function (C, x) {
+  anObject(C);
+  if (isObject(x) && x.constructor === C) return x;
+  var promiseCapability = newPromiseCapability.f(C);
+  var resolve = promiseCapability.resolve;
+  resolve(x);
+  return promiseCapability.promise;
+};
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_new-promise-capability":"../node_modules/core-js/modules/_new-promise-capability.js"}],"../node_modules/core-js/modules/es6.promise.js":[function(require,module,exports) {
+
+
+'use strict';
+var LIBRARY = require('./_library');
+var global = require('./_global');
+var ctx = require('./_ctx');
+var classof = require('./_classof');
+var $export = require('./_export');
+var isObject = require('./_is-object');
+var aFunction = require('./_a-function');
+var anInstance = require('./_an-instance');
+var forOf = require('./_for-of');
+var speciesConstructor = require('./_species-constructor');
+var task = require('./_task').set;
+var microtask = require('./_microtask')();
+var newPromiseCapabilityModule = require('./_new-promise-capability');
+var perform = require('./_perform');
+var userAgent = require('./_user-agent');
+var promiseResolve = require('./_promise-resolve');
+var PROMISE = 'Promise';
+var TypeError = global.TypeError;
+var process = global.process;
+var versions = process && process.versions;
+var v8 = versions && versions.v8 || '';
+var $Promise = global[PROMISE];
+var isNode = classof(process) == 'process';
+var empty = function () { /* empty */ };
+var Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;
+var newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;
+
+var USE_NATIVE = !!function () {
+  try {
+    // correct subclassing with @@species support
+    var promise = $Promise.resolve(1);
+    var FakePromise = (promise.constructor = {})[require('./_wks')('species')] = function (exec) {
+      exec(empty, empty);
+    };
+    // unhandled rejections tracking support, NodeJS Promise without it fails @@species test
+    return (isNode || typeof PromiseRejectionEvent == 'function')
+      && promise.then(empty) instanceof FakePromise
+      // v8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables
+      // https://bugs.chromium.org/p/chromium/issues/detail?id=830565
+      // we can't detect it synchronously, so just check versions
+      && v8.indexOf('6.6') !== 0
+      && userAgent.indexOf('Chrome/66') === -1;
+  } catch (e) { /* empty */ }
+}();
+
+// helpers
+var isThenable = function (it) {
+  var then;
+  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
+};
+var notify = function (promise, isReject) {
+  if (promise._n) return;
+  promise._n = true;
+  var chain = promise._c;
+  microtask(function () {
+    var value = promise._v;
+    var ok = promise._s == 1;
+    var i = 0;
+    var run = function (reaction) {
+      var handler = ok ? reaction.ok : reaction.fail;
+      var resolve = reaction.resolve;
+      var reject = reaction.reject;
+      var domain = reaction.domain;
+      var result, then, exited;
+      try {
+        if (handler) {
+          if (!ok) {
+            if (promise._h == 2) onHandleUnhandled(promise);
+            promise._h = 1;
+          }
+          if (handler === true) result = value;
+          else {
+            if (domain) domain.enter();
+            result = handler(value); // may throw
+            if (domain) {
+              domain.exit();
+              exited = true;
+            }
+          }
+          if (result === reaction.promise) {
+            reject(TypeError('Promise-chain cycle'));
+          } else if (then = isThenable(result)) {
+            then.call(result, resolve, reject);
+          } else resolve(result);
+        } else reject(value);
+      } catch (e) {
+        if (domain && !exited) domain.exit();
+        reject(e);
+      }
+    };
+    while (chain.length > i) run(chain[i++]); // variable length - can't use forEach
+    promise._c = [];
+    promise._n = false;
+    if (isReject && !promise._h) onUnhandled(promise);
+  });
+};
+var onUnhandled = function (promise) {
+  task.call(global, function () {
+    var value = promise._v;
+    var unhandled = isUnhandled(promise);
+    var result, handler, console;
+    if (unhandled) {
+      result = perform(function () {
+        if (isNode) {
+          process.emit('unhandledRejection', value, promise);
+        } else if (handler = global.onunhandledrejection) {
+          handler({ promise: promise, reason: value });
+        } else if ((console = global.console) && console.error) {
+          console.error('Unhandled promise rejection', value);
+        }
+      });
+      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should
+      promise._h = isNode || isUnhandled(promise) ? 2 : 1;
+    } promise._a = undefined;
+    if (unhandled && result.e) throw result.v;
+  });
+};
+var isUnhandled = function (promise) {
+  return promise._h !== 1 && (promise._a || promise._c).length === 0;
+};
+var onHandleUnhandled = function (promise) {
+  task.call(global, function () {
+    var handler;
+    if (isNode) {
+      process.emit('rejectionHandled', promise);
+    } else if (handler = global.onrejectionhandled) {
+      handler({ promise: promise, reason: promise._v });
+    }
+  });
+};
+var $reject = function (value) {
+  var promise = this;
+  if (promise._d) return;
+  promise._d = true;
+  promise = promise._w || promise; // unwrap
+  promise._v = value;
+  promise._s = 2;
+  if (!promise._a) promise._a = promise._c.slice();
+  notify(promise, true);
+};
+var $resolve = function (value) {
+  var promise = this;
+  var then;
+  if (promise._d) return;
+  promise._d = true;
+  promise = promise._w || promise; // unwrap
+  try {
+    if (promise === value) throw TypeError("Promise can't be resolved itself");
+    if (then = isThenable(value)) {
+      microtask(function () {
+        var wrapper = { _w: promise, _d: false }; // wrap
+        try {
+          then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));
+        } catch (e) {
+          $reject.call(wrapper, e);
+        }
+      });
+    } else {
+      promise._v = value;
+      promise._s = 1;
+      notify(promise, false);
+    }
+  } catch (e) {
+    $reject.call({ _w: promise, _d: false }, e); // wrap
+  }
+};
+
+// constructor polyfill
+if (!USE_NATIVE) {
+  // 25.4.3.1 Promise(executor)
+  $Promise = function Promise(executor) {
+    anInstance(this, $Promise, PROMISE, '_h');
+    aFunction(executor);
+    Internal.call(this);
+    try {
+      executor(ctx($resolve, this, 1), ctx($reject, this, 1));
+    } catch (err) {
+      $reject.call(this, err);
+    }
+  };
+  // eslint-disable-next-line no-unused-vars
+  Internal = function Promise(executor) {
+    this._c = [];             // <- awaiting reactions
+    this._a = undefined;      // <- checked in isUnhandled reactions
+    this._s = 0;              // <- state
+    this._d = false;          // <- done
+    this._v = undefined;      // <- value
+    this._h = 0;              // <- rejection state, 0 - default, 1 - handled, 2 - unhandled
+    this._n = false;          // <- notify
+  };
+  Internal.prototype = require('./_redefine-all')($Promise.prototype, {
+    // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)
+    then: function then(onFulfilled, onRejected) {
+      var reaction = newPromiseCapability(speciesConstructor(this, $Promise));
+      reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;
+      reaction.fail = typeof onRejected == 'function' && onRejected;
+      reaction.domain = isNode ? process.domain : undefined;
+      this._c.push(reaction);
+      if (this._a) this._a.push(reaction);
+      if (this._s) notify(this, false);
+      return reaction.promise;
+    },
+    // 25.4.5.1 Promise.prototype.catch(onRejected)
+    'catch': function (onRejected) {
+      return this.then(undefined, onRejected);
+    }
+  });
+  OwnPromiseCapability = function () {
+    var promise = new Internal();
+    this.promise = promise;
+    this.resolve = ctx($resolve, promise, 1);
+    this.reject = ctx($reject, promise, 1);
+  };
+  newPromiseCapabilityModule.f = newPromiseCapability = function (C) {
+    return C === $Promise || C === Wrapper
+      ? new OwnPromiseCapability(C)
+      : newGenericPromiseCapability(C);
+  };
+}
+
+$export($export.G + $export.W + $export.F * !USE_NATIVE, { Promise: $Promise });
+require('./_set-to-string-tag')($Promise, PROMISE);
+require('./_set-species')(PROMISE);
+Wrapper = require('./_core')[PROMISE];
+
+// statics
+$export($export.S + $export.F * !USE_NATIVE, PROMISE, {
+  // 25.4.4.5 Promise.reject(r)
+  reject: function reject(r) {
+    var capability = newPromiseCapability(this);
+    var $$reject = capability.reject;
+    $$reject(r);
+    return capability.promise;
+  }
+});
+$export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {
+  // 25.4.4.6 Promise.resolve(x)
+  resolve: function resolve(x) {
+    return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);
+  }
+});
+$export($export.S + $export.F * !(USE_NATIVE && require('./_iter-detect')(function (iter) {
+  $Promise.all(iter)['catch'](empty);
+})), PROMISE, {
+  // 25.4.4.1 Promise.all(iterable)
+  all: function all(iterable) {
+    var C = this;
+    var capability = newPromiseCapability(C);
+    var resolve = capability.resolve;
+    var reject = capability.reject;
+    var result = perform(function () {
+      var values = [];
+      var index = 0;
+      var remaining = 1;
+      forOf(iterable, false, function (promise) {
+        var $index = index++;
+        var alreadyCalled = false;
+        values.push(undefined);
+        remaining++;
+        C.resolve(promise).then(function (value) {
+          if (alreadyCalled) return;
+          alreadyCalled = true;
+          values[$index] = value;
+          --remaining || resolve(values);
+        }, reject);
+      });
+      --remaining || resolve(values);
+    });
+    if (result.e) reject(result.v);
+    return capability.promise;
+  },
+  // 25.4.4.4 Promise.race(iterable)
+  race: function race(iterable) {
+    var C = this;
+    var capability = newPromiseCapability(C);
+    var reject = capability.reject;
+    var result = perform(function () {
+      forOf(iterable, false, function (promise) {
+        C.resolve(promise).then(capability.resolve, reject);
+      });
+    });
+    if (result.e) reject(result.v);
+    return capability.promise;
+  }
+});
+
+},{"./_library":"../node_modules/core-js/modules/_library.js","./_global":"../node_modules/core-js/modules/_global.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_classof":"../node_modules/core-js/modules/_classof.js","./_export":"../node_modules/core-js/modules/_export.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_for-of":"../node_modules/core-js/modules/_for-of.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./_task":"../node_modules/core-js/modules/_task.js","./_microtask":"../node_modules/core-js/modules/_microtask.js","./_new-promise-capability":"../node_modules/core-js/modules/_new-promise-capability.js","./_perform":"../node_modules/core-js/modules/_perform.js","./_user-agent":"../node_modules/core-js/modules/_user-agent.js","./_promise-resolve":"../node_modules/core-js/modules/_promise-resolve.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_set-species":"../node_modules/core-js/modules/_set-species.js","./_core":"../node_modules/core-js/modules/_core.js","./_iter-detect":"../node_modules/core-js/modules/_iter-detect.js"}],"../node_modules/core-js/modules/es7.promise.finally.js":[function(require,module,exports) {
+
+// https://github.com/tc39/proposal-promise-finally
+'use strict';
+var $export = require('./_export');
+var core = require('./_core');
+var global = require('./_global');
+var speciesConstructor = require('./_species-constructor');
+var promiseResolve = require('./_promise-resolve');
+
+$export($export.P + $export.R, 'Promise', { 'finally': function (onFinally) {
+  var C = speciesConstructor(this, core.Promise || global.Promise);
+  var isFunction = typeof onFinally == 'function';
+  return this.then(
+    isFunction ? function (x) {
+      return promiseResolve(C, onFinally()).then(function () { return x; });
+    } : onFinally,
+    isFunction ? function (e) {
+      return promiseResolve(C, onFinally()).then(function () { throw e; });
+    } : onFinally
+  );
+} });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_core":"../node_modules/core-js/modules/_core.js","./_global":"../node_modules/core-js/modules/_global.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./_promise-resolve":"../node_modules/core-js/modules/_promise-resolve.js"}],"../node_modules/core-js/modules/es6.reflect.apply.js":[function(require,module,exports) {
+// 26.1.1 Reflect.apply(target, thisArgument, argumentsList)
+var $export = require('./_export');
+var aFunction = require('./_a-function');
+var anObject = require('./_an-object');
+var rApply = (require('./_global').Reflect || {}).apply;
+var fApply = Function.apply;
+// MS Edge argumentsList argument is optional
+$export($export.S + $export.F * !require('./_fails')(function () {
+  rApply(function () { /* empty */ });
+}), 'Reflect', {
+  apply: function apply(target, thisArgument, argumentsList) {
+    var T = aFunction(target);
+    var L = anObject(argumentsList);
+    return rApply ? rApply(T, thisArgument, L) : fApply.call(T, thisArgument, L);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_global":"../node_modules/core-js/modules/_global.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_bind.js":[function(require,module,exports) {
+'use strict';
+var aFunction = require('./_a-function');
+var isObject = require('./_is-object');
+var invoke = require('./_invoke');
+var arraySlice = [].slice;
+var factories = {};
+
+var construct = function (F, len, args) {
+  if (!(len in factories)) {
+    for (var n = [], i = 0; i < len; i++) n[i] = 'a[' + i + ']';
+    // eslint-disable-next-line no-new-func
+    factories[len] = Function('F,a', 'return new F(' + n.join(',') + ')');
+  } return factories[len](F, args);
+};
+
+module.exports = Function.bind || function bind(that /* , ...args */) {
+  var fn = aFunction(this);
+  var partArgs = arraySlice.call(arguments, 1);
+  var bound = function (/* args... */) {
+    var args = partArgs.concat(arraySlice.call(arguments));
+    return this instanceof bound ? construct(fn, args.length, args) : invoke(fn, args, that);
+  };
+  if (isObject(fn.prototype)) bound.prototype = fn.prototype;
+  return bound;
+};
+
+},{"./_a-function":"../node_modules/core-js/modules/_a-function.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_invoke":"../node_modules/core-js/modules/_invoke.js"}],"../node_modules/core-js/modules/es6.reflect.construct.js":[function(require,module,exports) {
+// 26.1.2 Reflect.construct(target, argumentsList [, newTarget])
+var $export = require('./_export');
+var create = require('./_object-create');
+var aFunction = require('./_a-function');
+var anObject = require('./_an-object');
+var isObject = require('./_is-object');
+var fails = require('./_fails');
+var bind = require('./_bind');
+var rConstruct = (require('./_global').Reflect || {}).construct;
+
+// MS Edge supports only 2 arguments and argumentsList argument is optional
+// FF Nightly sets third argument as `new.target`, but does not create `this` from it
+var NEW_TARGET_BUG = fails(function () {
+  function F() { /* empty */ }
+  return !(rConstruct(function () { /* empty */ }, [], F) instanceof F);
+});
+var ARGS_BUG = !fails(function () {
+  rConstruct(function () { /* empty */ });
+});
+
+$export($export.S + $export.F * (NEW_TARGET_BUG || ARGS_BUG), 'Reflect', {
+  construct: function construct(Target, args /* , newTarget */) {
+    aFunction(Target);
+    anObject(args);
+    var newTarget = arguments.length < 3 ? Target : aFunction(arguments[2]);
+    if (ARGS_BUG && !NEW_TARGET_BUG) return rConstruct(Target, args, newTarget);
+    if (Target == newTarget) {
+      // w/o altered newTarget, optimization for 0-4 arguments
+      switch (args.length) {
+        case 0: return new Target();
+        case 1: return new Target(args[0]);
+        case 2: return new Target(args[0], args[1]);
+        case 3: return new Target(args[0], args[1], args[2]);
+        case 4: return new Target(args[0], args[1], args[2], args[3]);
+      }
+      // w/o altered newTarget, lot of arguments case
+      var $args = [null];
+      $args.push.apply($args, args);
+      return new (bind.apply(Target, $args))();
+    }
+    // with altered newTarget, not support built-in constructors
+    var proto = newTarget.prototype;
+    var instance = create(isObject(proto) ? proto : Object.prototype);
+    var result = Function.apply.call(Target, instance, args);
+    return isObject(result) ? result : instance;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_bind":"../node_modules/core-js/modules/_bind.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/es6.reflect.define-property.js":[function(require,module,exports) {
+// 26.1.3 Reflect.defineProperty(target, propertyKey, attributes)
+var dP = require('./_object-dp');
+var $export = require('./_export');
+var anObject = require('./_an-object');
+var toPrimitive = require('./_to-primitive');
+
+// MS Edge has broken Reflect.defineProperty - throwing instead of returning false
+$export($export.S + $export.F * require('./_fails')(function () {
+  // eslint-disable-next-line no-undef
+  Reflect.defineProperty(dP.f({}, 1, { value: 1 }), 1, { value: 2 });
+}), 'Reflect', {
+  defineProperty: function defineProperty(target, propertyKey, attributes) {
+    anObject(target);
+    propertyKey = toPrimitive(propertyKey, true);
+    anObject(attributes);
+    try {
+      dP.f(target, propertyKey, attributes);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+});
+
+},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_export":"../node_modules/core-js/modules/_export.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.reflect.delete-property.js":[function(require,module,exports) {
+// 26.1.4 Reflect.deleteProperty(target, propertyKey)
+var $export = require('./_export');
+var gOPD = require('./_object-gopd').f;
+var anObject = require('./_an-object');
+
+$export($export.S, 'Reflect', {
+  deleteProperty: function deleteProperty(target, propertyKey) {
+    var desc = gOPD(anObject(target), propertyKey);
+    return desc && !desc.configurable ? false : delete target[propertyKey];
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.get.js":[function(require,module,exports) {
+// 26.1.6 Reflect.get(target, propertyKey [, receiver])
+var gOPD = require('./_object-gopd');
+var getPrototypeOf = require('./_object-gpo');
+var has = require('./_has');
+var $export = require('./_export');
+var isObject = require('./_is-object');
+var anObject = require('./_an-object');
+
+function get(target, propertyKey /* , receiver */) {
+  var receiver = arguments.length < 3 ? target : arguments[2];
+  var desc, proto;
+  if (anObject(target) === receiver) return target[propertyKey];
+  if (desc = gOPD.f(target, propertyKey)) return has(desc, 'value')
+    ? desc.value
+    : desc.get !== undefined
+      ? desc.get.call(receiver)
+      : undefined;
+  if (isObject(proto = getPrototypeOf(target))) return get(proto, propertyKey, receiver);
+}
+
+$export($export.S, 'Reflect', { get: get });
+
+},{"./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_has":"../node_modules/core-js/modules/_has.js","./_export":"../node_modules/core-js/modules/_export.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.get-own-property-descriptor.js":[function(require,module,exports) {
+// 26.1.7 Reflect.getOwnPropertyDescriptor(target, propertyKey)
+var gOPD = require('./_object-gopd');
+var $export = require('./_export');
+var anObject = require('./_an-object');
+
+$export($export.S, 'Reflect', {
+  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(target, propertyKey) {
+    return gOPD.f(anObject(target), propertyKey);
+  }
+});
+
+},{"./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_export":"../node_modules/core-js/modules/_export.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.get-prototype-of.js":[function(require,module,exports) {
+// 26.1.8 Reflect.getPrototypeOf(target)
+var $export = require('./_export');
+var getProto = require('./_object-gpo');
+var anObject = require('./_an-object');
+
+$export($export.S, 'Reflect', {
+  getPrototypeOf: function getPrototypeOf(target) {
+    return getProto(anObject(target));
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.has.js":[function(require,module,exports) {
+// 26.1.9 Reflect.has(target, propertyKey)
+var $export = require('./_export');
+
+$export($export.S, 'Reflect', {
+  has: function has(target, propertyKey) {
+    return propertyKey in target;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.reflect.is-extensible.js":[function(require,module,exports) {
+// 26.1.10 Reflect.isExtensible(target)
+var $export = require('./_export');
+var anObject = require('./_an-object');
+var $isExtensible = Object.isExtensible;
+
+$export($export.S, 'Reflect', {
+  isExtensible: function isExtensible(target) {
+    anObject(target);
+    return $isExtensible ? $isExtensible(target) : true;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.own-keys.js":[function(require,module,exports) {
+// 26.1.11 Reflect.ownKeys(target)
+var $export = require('./_export');
+
+$export($export.S, 'Reflect', { ownKeys: require('./_own-keys') });
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_own-keys":"../node_modules/core-js/modules/_own-keys.js"}],"../node_modules/core-js/modules/es6.reflect.prevent-extensions.js":[function(require,module,exports) {
+// 26.1.12 Reflect.preventExtensions(target)
+var $export = require('./_export');
+var anObject = require('./_an-object');
+var $preventExtensions = Object.preventExtensions;
+
+$export($export.S, 'Reflect', {
+  preventExtensions: function preventExtensions(target) {
+    anObject(target);
+    try {
+      if ($preventExtensions) $preventExtensions(target);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.set.js":[function(require,module,exports) {
+// 26.1.13 Reflect.set(target, propertyKey, V [, receiver])
+var dP = require('./_object-dp');
+var gOPD = require('./_object-gopd');
+var getPrototypeOf = require('./_object-gpo');
+var has = require('./_has');
+var $export = require('./_export');
+var createDesc = require('./_property-desc');
+var anObject = require('./_an-object');
+var isObject = require('./_is-object');
+
+function set(target, propertyKey, V /* , receiver */) {
+  var receiver = arguments.length < 4 ? target : arguments[3];
+  var ownDesc = gOPD.f(anObject(target), propertyKey);
+  var existingDescriptor, proto;
+  if (!ownDesc) {
+    if (isObject(proto = getPrototypeOf(target))) {
+      return set(proto, propertyKey, V, receiver);
+    }
+    ownDesc = createDesc(0);
+  }
+  if (has(ownDesc, 'value')) {
+    if (ownDesc.writable === false || !isObject(receiver)) return false;
+    if (existingDescriptor = gOPD.f(receiver, propertyKey)) {
+      if (existingDescriptor.get || existingDescriptor.set || existingDescriptor.writable === false) return false;
+      existingDescriptor.value = V;
+      dP.f(receiver, propertyKey, existingDescriptor);
+    } else dP.f(receiver, propertyKey, createDesc(0, V));
+    return true;
+  }
+  return ownDesc.set === undefined ? false : (ownDesc.set.call(receiver, V), true);
+}
+
+$export($export.S, 'Reflect', { set: set });
+
+},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_has":"../node_modules/core-js/modules/_has.js","./_export":"../node_modules/core-js/modules/_export.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/es6.reflect.set-prototype-of.js":[function(require,module,exports) {
+// 26.1.14 Reflect.setPrototypeOf(target, proto)
+var $export = require('./_export');
+var setProto = require('./_set-proto');
+
+if (setProto) $export($export.S, 'Reflect', {
+  setPrototypeOf: function setPrototypeOf(target, proto) {
+    setProto.check(target, proto);
+    try {
+      setProto.set(target, proto);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_set-proto":"../node_modules/core-js/modules/_set-proto.js"}],"../node_modules/core-js/modules/_is-regexp.js":[function(require,module,exports) {
+// 7.2.8 IsRegExp(argument)
+var isObject = require('./_is-object');
+var cof = require('./_cof');
+var MATCH = require('./_wks')('match');
+module.exports = function (it) {
+  var isRegExp;
+  return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : cof(it) == 'RegExp');
+};
+
+},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_cof":"../node_modules/core-js/modules/_cof.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_flags.js":[function(require,module,exports) {
+'use strict';
+// 21.2.5.3 get RegExp.prototype.flags
+var anObject = require('./_an-object');
+module.exports = function () {
+  var that = anObject(this);
+  var result = '';
+  if (that.global) result += 'g';
+  if (that.ignoreCase) result += 'i';
+  if (that.multiline) result += 'm';
+  if (that.unicode) result += 'u';
+  if (that.sticky) result += 'y';
+  return result;
+};
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.regexp.constructor.js":[function(require,module,exports) {
+
+var global = require('./_global');
+var inheritIfRequired = require('./_inherit-if-required');
+var dP = require('./_object-dp').f;
+var gOPN = require('./_object-gopn').f;
+var isRegExp = require('./_is-regexp');
+var $flags = require('./_flags');
+var $RegExp = global.RegExp;
+var Base = $RegExp;
+var proto = $RegExp.prototype;
+var re1 = /a/g;
+var re2 = /a/g;
+// "new" creates a new object, old webkit buggy here
+var CORRECT_NEW = new $RegExp(re1) !== re1;
+
+if (require('./_descriptors') && (!CORRECT_NEW || require('./_fails')(function () {
+  re2[require('./_wks')('match')] = false;
+  // RegExp constructor can alter flags and IsRegExp works correct with @@match
+  return $RegExp(re1) != re1 || $RegExp(re2) == re2 || $RegExp(re1, 'i') != '/a/i';
+}))) {
+  $RegExp = function RegExp(p, f) {
+    var tiRE = this instanceof $RegExp;
+    var piRE = isRegExp(p);
+    var fiU = f === undefined;
+    return !tiRE && piRE && p.constructor === $RegExp && fiU ? p
+      : inheritIfRequired(CORRECT_NEW
+        ? new Base(piRE && !fiU ? p.source : p, f)
+        : Base((piRE = p instanceof $RegExp) ? p.source : p, piRE && fiU ? $flags.call(p) : f)
+      , tiRE ? this : proto, $RegExp);
+  };
+  var proxy = function (key) {
+    key in $RegExp || dP($RegExp, key, {
+      configurable: true,
+      get: function () { return Base[key]; },
+      set: function (it) { Base[key] = it; }
+    });
+  };
+  for (var keys = gOPN(Base), i = 0; keys.length > i;) proxy(keys[i++]);
+  proto.constructor = $RegExp;
+  $RegExp.prototype = proto;
+  require('./_redefine')(global, 'RegExp', $RegExp);
+}
+
+require('./_set-species')('RegExp');
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_inherit-if-required":"../node_modules/core-js/modules/_inherit-if-required.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_is-regexp":"../node_modules/core-js/modules/_is-regexp.js","./_flags":"../node_modules/core-js/modules/_flags.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_set-species":"../node_modules/core-js/modules/_set-species.js"}],"../node_modules/core-js/modules/es6.regexp.flags.js":[function(require,module,exports) {
+// 21.2.5.3 get RegExp.prototype.flags()
+if (require('./_descriptors') && /./g.flags != 'g') require('./_object-dp').f(RegExp.prototype, 'flags', {
+  configurable: true,
+  get: require('./_flags')
+});
+
+},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_flags":"../node_modules/core-js/modules/_flags.js"}],"../node_modules/core-js/modules/_string-at.js":[function(require,module,exports) {
+var toInteger = require('./_to-integer');
+var defined = require('./_defined');
+// true  -> String#at
+// false -> String#codePointAt
+module.exports = function (TO_STRING) {
+  return function (that, pos) {
+    var s = String(defined(that));
+    var i = toInteger(pos);
+    var l = s.length;
+    var a, b;
+    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
+    a = s.charCodeAt(i);
+    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
+      ? TO_STRING ? s.charAt(i) : a
+      : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
+  };
+};
+
+},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_advance-string-index.js":[function(require,module,exports) {
+'use strict';
+var at = require('./_string-at')(true);
+
+ // `AdvanceStringIndex` abstract operation
+// https://tc39.github.io/ecma262/#sec-advancestringindex
+module.exports = function (S, index, unicode) {
+  return index + (unicode ? at(S, index).length : 1);
+};
+
+},{"./_string-at":"../node_modules/core-js/modules/_string-at.js"}],"../node_modules/core-js/modules/_regexp-exec-abstract.js":[function(require,module,exports) {
+'use strict';
+
+var classof = require('./_classof');
+var builtinExec = RegExp.prototype.exec;
+
+ // `RegExpExec` abstract operation
+// https://tc39.github.io/ecma262/#sec-regexpexec
+module.exports = function (R, S) {
+  var exec = R.exec;
+  if (typeof exec === 'function') {
+    var result = exec.call(R, S);
+    if (typeof result !== 'object') {
+      throw new TypeError('RegExp exec method returned something other than an Object or null');
+    }
+    return result;
+  }
+  if (classof(R) !== 'RegExp') {
+    throw new TypeError('RegExp#exec called on incompatible receiver');
+  }
+  return builtinExec.call(R, S);
+};
+
+},{"./_classof":"../node_modules/core-js/modules/_classof.js"}],"../node_modules/core-js/modules/_regexp-exec.js":[function(require,module,exports) {
+'use strict';
+
+var regexpFlags = require('./_flags');
+
+var nativeExec = RegExp.prototype.exec;
+// This always refers to the native implementation, because the
+// String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,
+// which loads this file before patching the method.
+var nativeReplace = String.prototype.replace;
+
+var patchedExec = nativeExec;
+
+var LAST_INDEX = 'lastIndex';
+
+var UPDATES_LAST_INDEX_WRONG = (function () {
+  var re1 = /a/,
+      re2 = /b*/g;
+  nativeExec.call(re1, 'a');
+  nativeExec.call(re2, 'a');
+  return re1[LAST_INDEX] !== 0 || re2[LAST_INDEX] !== 0;
+})();
+
+// nonparticipating capturing group, copied from es5-shim's String#split patch.
+var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;
+
+var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED;
+
+if (PATCH) {
+  patchedExec = function exec(str) {
+    var re = this;
+    var lastIndex, reCopy, match, i;
+
+    if (NPCG_INCLUDED) {
+      reCopy = new RegExp('^' + re.source + '$(?!\\s)', regexpFlags.call(re));
+    }
+    if (UPDATES_LAST_INDEX_WRONG) lastIndex = re[LAST_INDEX];
+
+    match = nativeExec.call(re, str);
+
+    if (UPDATES_LAST_INDEX_WRONG && match) {
+      re[LAST_INDEX] = re.global ? match.index + match[0].length : lastIndex;
+    }
+    if (NPCG_INCLUDED && match && match.length > 1) {
+      // Fix browsers whose `exec` methods don't consistently return `undefined`
+      // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
+      // eslint-disable-next-line no-loop-func
+      nativeReplace.call(match[0], reCopy, function () {
+        for (i = 1; i < arguments.length - 2; i++) {
+          if (arguments[i] === undefined) match[i] = undefined;
+        }
+      });
+    }
+
+    return match;
+  };
+}
+
+module.exports = patchedExec;
+
+},{"./_flags":"../node_modules/core-js/modules/_flags.js"}],"../node_modules/core-js/modules/es6.regexp.exec.js":[function(require,module,exports) {
+'use strict';
+var regexpExec = require('./_regexp-exec');
+require('./_export')({
+  target: 'RegExp',
+  proto: true,
+  forced: regexpExec !== /./.exec
+}, {
+  exec: regexpExec
+});
+
+},{"./_regexp-exec":"../node_modules/core-js/modules/_regexp-exec.js","./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_fix-re-wks.js":[function(require,module,exports) {
+'use strict';
+require('./es6.regexp.exec');
+var redefine = require('./_redefine');
+var hide = require('./_hide');
+var fails = require('./_fails');
+var defined = require('./_defined');
+var wks = require('./_wks');
+var regexpExec = require('./_regexp-exec');
+
+var SPECIES = wks('species');
+
+var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
+  // #replace needs built-in support for named groups.
+  // #match works fine because it just return the exec results, even if it has
+  // a "grops" property.
+  var re = /./;
+  re.exec = function () {
+    var result = [];
+    result.groups = { a: '7' };
+    return result;
+  };
+  return ''.replace(re, '$<a>') !== '7';
+});
+
+var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = (function () {
+  // Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
+  var re = /(?:)/;
+  var originalExec = re.exec;
+  re.exec = function () { return originalExec.apply(this, arguments); };
+  var result = 'ab'.split(re);
+  return result.length === 2 && result[0] === 'a' && result[1] === 'b';
+})();
+
+module.exports = function (KEY, length, exec) {
+  var SYMBOL = wks(KEY);
+
+  var DELEGATES_TO_SYMBOL = !fails(function () {
+    // String methods call symbol-named RegEp methods
+    var O = {};
+    O[SYMBOL] = function () { return 7; };
+    return ''[KEY](O) != 7;
+  });
+
+  var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL ? !fails(function () {
+    // Symbol-named RegExp methods call .exec
+    var execCalled = false;
+    var re = /a/;
+    re.exec = function () { execCalled = true; return null; };
+    if (KEY === 'split') {
+      // RegExp[@@split] doesn't call the regex's exec method, but first creates
+      // a new one. We need to return the patched regex when creating the new one.
+      re.constructor = {};
+      re.constructor[SPECIES] = function () { return re; };
+    }
+    re[SYMBOL]('');
+    return !execCalled;
+  }) : undefined;
+
+  if (
+    !DELEGATES_TO_SYMBOL ||
+    !DELEGATES_TO_EXEC ||
+    (KEY === 'replace' && !REPLACE_SUPPORTS_NAMED_GROUPS) ||
+    (KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)
+  ) {
+    var nativeRegExpMethod = /./[SYMBOL];
+    var fns = exec(
+      defined,
+      SYMBOL,
+      ''[KEY],
+      function maybeCallNative(nativeMethod, regexp, str, arg2, forceStringMethod) {
+        if (regexp.exec === regexpExec) {
+          if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
+            // The native String method already delegates to @@method (this
+            // polyfilled function), leasing to infinite recursion.
+            // We avoid it by directly calling the native @@method method.
+            return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };
+          }
+          return { done: true, value: nativeMethod.call(str, regexp, arg2) };
+        }
+        return { done: false };
+      }
+    );
+    var strfn = fns[0];
+    var rxfn = fns[1];
+
+    redefine(String.prototype, KEY, strfn);
+    hide(RegExp.prototype, SYMBOL, length == 2
+      // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
+      // 21.2.5.11 RegExp.prototype[@@split](string, limit)
+      ? function (string, arg) { return rxfn.call(string, this, arg); }
+      // 21.2.5.6 RegExp.prototype[@@match](string)
+      // 21.2.5.9 RegExp.prototype[@@search](string)
+      : function (string) { return rxfn.call(string, this); }
+    );
+  }
+};
+
+},{"./es6.regexp.exec":"../node_modules/core-js/modules/es6.regexp.exec.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_defined":"../node_modules/core-js/modules/_defined.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_regexp-exec":"../node_modules/core-js/modules/_regexp-exec.js"}],"../node_modules/core-js/modules/es6.regexp.match.js":[function(require,module,exports) {
+'use strict';
+
+var anObject = require('./_an-object');
+var toLength = require('./_to-length');
+var advanceStringIndex = require('./_advance-string-index');
+var regExpExec = require('./_regexp-exec-abstract');
+
+// @@match logic
+require('./_fix-re-wks')('match', 1, function (defined, MATCH, $match, maybeCallNative) {
+  return [
+    // `String.prototype.match` method
+    // https://tc39.github.io/ecma262/#sec-string.prototype.match
+    function match(regexp) {
+      var O = defined(this);
+      var fn = regexp == undefined ? undefined : regexp[MATCH];
+      return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
+    },
+    // `RegExp.prototype[@@match]` method
+    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match
+    function (regexp) {
+      var res = maybeCallNative($match, regexp, this);
+      if (res.done) return res.value;
+      var rx = anObject(regexp);
+      var S = String(this);
+      if (!rx.global) return regExpExec(rx, S);
+      var fullUnicode = rx.unicode;
+      rx.lastIndex = 0;
+      var A = [];
+      var n = 0;
+      var result;
+      while ((result = regExpExec(rx, S)) !== null) {
+        var matchStr = String(result[0]);
+        A[n] = matchStr;
+        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
+        n++;
+      }
+      return n === 0 ? null : A;
+    }
+  ];
+});
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_advance-string-index":"../node_modules/core-js/modules/_advance-string-index.js","./_regexp-exec-abstract":"../node_modules/core-js/modules/_regexp-exec-abstract.js","./_fix-re-wks":"../node_modules/core-js/modules/_fix-re-wks.js"}],"../node_modules/core-js/modules/es6.regexp.replace.js":[function(require,module,exports) {
+var global = arguments[3];
+'use strict';
+
+var anObject = require('./_an-object');
+var toObject = require('./_to-object');
+var toLength = require('./_to-length');
+var toInteger = require('./_to-integer');
+var advanceStringIndex = require('./_advance-string-index');
+var regExpExec = require('./_regexp-exec-abstract');
+var max = Math.max;
+var min = Math.min;
+var floor = Math.floor;
+var SUBSTITUTION_SYMBOLS = /\$([$&`']|\d\d?|<[^>]*>)/g;
+var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&`']|\d\d?)/g;
+
+var maybeToString = function (it) {
+  return it === undefined ? it : String(it);
+};
+
+// @@replace logic
+require('./_fix-re-wks')('replace', 2, function (defined, REPLACE, $replace, maybeCallNative) {
+  return [
+    // `String.prototype.replace` method
+    // https://tc39.github.io/ecma262/#sec-string.prototype.replace
+    function replace(searchValue, replaceValue) {
+      var O = defined(this);
+      var fn = searchValue == undefined ? undefined : searchValue[REPLACE];
+      return fn !== undefined
+        ? fn.call(searchValue, O, replaceValue)
+        : $replace.call(String(O), searchValue, replaceValue);
+    },
+    // `RegExp.prototype[@@replace]` method
+    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace
+    function (regexp, replaceValue) {
+      var res = maybeCallNative($replace, regexp, this, replaceValue);
+      if (res.done) return res.value;
+
+      var rx = anObject(regexp);
+      var S = String(this);
+      var functionalReplace = typeof replaceValue === 'function';
+      if (!functionalReplace) replaceValue = String(replaceValue);
+      var global = rx.global;
+      if (global) {
+        var fullUnicode = rx.unicode;
+        rx.lastIndex = 0;
+      }
+      var results = [];
+      while (true) {
+        var result = regExpExec(rx, S);
+        if (result === null) break;
+        results.push(result);
+        if (!global) break;
+        var matchStr = String(result[0]);
+        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
+      }
+      var accumulatedResult = '';
+      var nextSourcePosition = 0;
+      for (var i = 0; i < results.length; i++) {
+        result = results[i];
+        var matched = String(result[0]);
+        var position = max(min(toInteger(result.index), S.length), 0);
+        var captures = [];
+        // NOTE: This is equivalent to
+        //   captures = result.slice(1).map(maybeToString)
+        // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
+        // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
+        // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
+        for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
+        var namedCaptures = result.groups;
+        if (functionalReplace) {
+          var replacerArgs = [matched].concat(captures, position, S);
+          if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
+          var replacement = String(replaceValue.apply(undefined, replacerArgs));
+        } else {
+          replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
+        }
+        if (position >= nextSourcePosition) {
+          accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
+          nextSourcePosition = position + matched.length;
+        }
+      }
+      return accumulatedResult + S.slice(nextSourcePosition);
+    }
+  ];
+
+    // https://tc39.github.io/ecma262/#sec-getsubstitution
+  function getSubstitution(matched, str, position, captures, namedCaptures, replacement) {
+    var tailPos = position + matched.length;
+    var m = captures.length;
+    var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
+    if (namedCaptures !== undefined) {
+      namedCaptures = toObject(namedCaptures);
+      symbols = SUBSTITUTION_SYMBOLS;
+    }
+    return $replace.call(replacement, symbols, function (match, ch) {
+      var capture;
+      switch (ch.charAt(0)) {
+        case '$': return '$';
+        case '&': return matched;
+        case '`': return str.slice(0, position);
+        case "'": return str.slice(tailPos);
+        case '<':
+          capture = namedCaptures[ch.slice(1, -1)];
+          break;
+        default: // \d\d?
+          var n = +ch;
+          if (n === 0) return match;
+          if (n > m) {
+            var f = floor(n / 10);
+            if (f === 0) return match;
+            if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);
+            return match;
+          }
+          capture = captures[n - 1];
+      }
+      return capture === undefined ? '' : capture;
+    });
+  }
+});
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_advance-string-index":"../node_modules/core-js/modules/_advance-string-index.js","./_regexp-exec-abstract":"../node_modules/core-js/modules/_regexp-exec-abstract.js","./_fix-re-wks":"../node_modules/core-js/modules/_fix-re-wks.js"}],"../node_modules/core-js/modules/es6.regexp.split.js":[function(require,module,exports) {
+'use strict';
+
+var isRegExp = require('./_is-regexp');
+var anObject = require('./_an-object');
+var speciesConstructor = require('./_species-constructor');
+var advanceStringIndex = require('./_advance-string-index');
+var toLength = require('./_to-length');
+var callRegExpExec = require('./_regexp-exec-abstract');
+var regexpExec = require('./_regexp-exec');
+var fails = require('./_fails');
+var $min = Math.min;
+var $push = [].push;
+var $SPLIT = 'split';
+var LENGTH = 'length';
+var LAST_INDEX = 'lastIndex';
+var MAX_UINT32 = 0xffffffff;
+
+// babel-minify transpiles RegExp('x', 'y') -> /x/y and it causes SyntaxError
+var SUPPORTS_Y = !fails(function () { RegExp(MAX_UINT32, 'y'); });
+
+// @@split logic
+require('./_fix-re-wks')('split', 2, function (defined, SPLIT, $split, maybeCallNative) {
+  var internalSplit;
+  if (
+    'abbc'[$SPLIT](/(b)*/)[1] == 'c' ||
+    'test'[$SPLIT](/(?:)/, -1)[LENGTH] != 4 ||
+    'ab'[$SPLIT](/(?:ab)*/)[LENGTH] != 2 ||
+    '.'[$SPLIT](/(.?)(.?)/)[LENGTH] != 4 ||
+    '.'[$SPLIT](/()()/)[LENGTH] > 1 ||
+    ''[$SPLIT](/.?/)[LENGTH]
+  ) {
+    // based on es5-shim implementation, need to rework it
+    internalSplit = function (separator, limit) {
+      var string = String(this);
+      if (separator === undefined && limit === 0) return [];
+      // If `separator` is not a regex, use native split
+      if (!isRegExp(separator)) return $split.call(string, separator, limit);
+      var output = [];
+      var flags = (separator.ignoreCase ? 'i' : '') +
+                  (separator.multiline ? 'm' : '') +
+                  (separator.unicode ? 'u' : '') +
+                  (separator.sticky ? 'y' : '');
+      var lastLastIndex = 0;
+      var splitLimit = limit === undefined ? MAX_UINT32 : limit >>> 0;
+      // Make `global` and avoid `lastIndex` issues by working with a copy
+      var separatorCopy = new RegExp(separator.source, flags + 'g');
+      var match, lastIndex, lastLength;
+      while (match = regexpExec.call(separatorCopy, string)) {
+        lastIndex = separatorCopy[LAST_INDEX];
+        if (lastIndex > lastLastIndex) {
+          output.push(string.slice(lastLastIndex, match.index));
+          if (match[LENGTH] > 1 && match.index < string[LENGTH]) $push.apply(output, match.slice(1));
+          lastLength = match[0][LENGTH];
+          lastLastIndex = lastIndex;
+          if (output[LENGTH] >= splitLimit) break;
+        }
+        if (separatorCopy[LAST_INDEX] === match.index) separatorCopy[LAST_INDEX]++; // Avoid an infinite loop
+      }
+      if (lastLastIndex === string[LENGTH]) {
+        if (lastLength || !separatorCopy.test('')) output.push('');
+      } else output.push(string.slice(lastLastIndex));
+      return output[LENGTH] > splitLimit ? output.slice(0, splitLimit) : output;
+    };
+  // Chakra, V8
+  } else if ('0'[$SPLIT](undefined, 0)[LENGTH]) {
+    internalSplit = function (separator, limit) {
+      return separator === undefined && limit === 0 ? [] : $split.call(this, separator, limit);
+    };
+  } else {
+    internalSplit = $split;
+  }
+
+  return [
+    // `String.prototype.split` method
+    // https://tc39.github.io/ecma262/#sec-string.prototype.split
+    function split(separator, limit) {
+      var O = defined(this);
+      var splitter = separator == undefined ? undefined : separator[SPLIT];
+      return splitter !== undefined
+        ? splitter.call(separator, O, limit)
+        : internalSplit.call(String(O), separator, limit);
+    },
+    // `RegExp.prototype[@@split]` method
+    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@split
+    //
+    // NOTE: This cannot be properly polyfilled in engines that don't support
+    // the 'y' flag.
+    function (regexp, limit) {
+      var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== $split);
+      if (res.done) return res.value;
+
+      var rx = anObject(regexp);
+      var S = String(this);
+      var C = speciesConstructor(rx, RegExp);
+
+      var unicodeMatching = rx.unicode;
+      var flags = (rx.ignoreCase ? 'i' : '') +
+                  (rx.multiline ? 'm' : '') +
+                  (rx.unicode ? 'u' : '') +
+                  (SUPPORTS_Y ? 'y' : 'g');
+
+      // ^(? + rx + ) is needed, in combination with some S slicing, to
+      // simulate the 'y' flag.
+      var splitter = new C(SUPPORTS_Y ? rx : '^(?:' + rx.source + ')', flags);
+      var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
+      if (lim === 0) return [];
+      if (S.length === 0) return callRegExpExec(splitter, S) === null ? [S] : [];
+      var p = 0;
+      var q = 0;
+      var A = [];
+      while (q < S.length) {
+        splitter.lastIndex = SUPPORTS_Y ? q : 0;
+        var z = callRegExpExec(splitter, SUPPORTS_Y ? S : S.slice(q));
+        var e;
+        if (
+          z === null ||
+          (e = $min(toLength(splitter.lastIndex + (SUPPORTS_Y ? 0 : q)), S.length)) === p
+        ) {
+          q = advanceStringIndex(S, q, unicodeMatching);
+        } else {
+          A.push(S.slice(p, q));
+          if (A.length === lim) return A;
+          for (var i = 1; i <= z.length - 1; i++) {
+            A.push(z[i]);
+            if (A.length === lim) return A;
+          }
+          q = p = e;
+        }
+      }
+      A.push(S.slice(p));
+      return A;
+    }
+  ];
+});
+
+},{"./_is-regexp":"../node_modules/core-js/modules/_is-regexp.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./_advance-string-index":"../node_modules/core-js/modules/_advance-string-index.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_regexp-exec-abstract":"../node_modules/core-js/modules/_regexp-exec-abstract.js","./_regexp-exec":"../node_modules/core-js/modules/_regexp-exec.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_fix-re-wks":"../node_modules/core-js/modules/_fix-re-wks.js"}],"../node_modules/core-js/modules/es6.regexp.search.js":[function(require,module,exports) {
+'use strict';
+
+var anObject = require('./_an-object');
+var sameValue = require('./_same-value');
+var regExpExec = require('./_regexp-exec-abstract');
+
+// @@search logic
+require('./_fix-re-wks')('search', 1, function (defined, SEARCH, $search, maybeCallNative) {
+  return [
+    // `String.prototype.search` method
+    // https://tc39.github.io/ecma262/#sec-string.prototype.search
+    function search(regexp) {
+      var O = defined(this);
+      var fn = regexp == undefined ? undefined : regexp[SEARCH];
+      return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));
+    },
+    // `RegExp.prototype[@@search]` method
+    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@search
+    function (regexp) {
+      var res = maybeCallNative($search, regexp, this);
+      if (res.done) return res.value;
+      var rx = anObject(regexp);
+      var S = String(this);
+      var previousLastIndex = rx.lastIndex;
+      if (!sameValue(previousLastIndex, 0)) rx.lastIndex = 0;
+      var result = regExpExec(rx, S);
+      if (!sameValue(rx.lastIndex, previousLastIndex)) rx.lastIndex = previousLastIndex;
+      return result === null ? -1 : result.index;
+    }
+  ];
+});
+
+},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_same-value":"../node_modules/core-js/modules/_same-value.js","./_regexp-exec-abstract":"../node_modules/core-js/modules/_regexp-exec-abstract.js","./_fix-re-wks":"../node_modules/core-js/modules/_fix-re-wks.js"}],"../node_modules/core-js/modules/es6.regexp.to-string.js":[function(require,module,exports) {
+
+'use strict';
+require('./es6.regexp.flags');
+var anObject = require('./_an-object');
+var $flags = require('./_flags');
+var DESCRIPTORS = require('./_descriptors');
+var TO_STRING = 'toString';
+var $toString = /./[TO_STRING];
+
+var define = function (fn) {
+  require('./_redefine')(RegExp.prototype, TO_STRING, fn, true);
+};
+
+// 21.2.5.14 RegExp.prototype.toString()
+if (require('./_fails')(function () { return $toString.call({ source: 'a', flags: 'b' }) != '/a/b'; })) {
+  define(function toString() {
+    var R = anObject(this);
+    return '/'.concat(R.source, '/',
+      'flags' in R ? R.flags : !DESCRIPTORS && R instanceof RegExp ? $flags.call(R) : undefined);
+  });
+// FF44- RegExp#toString has a wrong name
+} else if ($toString.name != TO_STRING) {
+  define(function toString() {
+    return $toString.call(this);
+  });
+}
+
+},{"./es6.regexp.flags":"../node_modules/core-js/modules/es6.regexp.flags.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_flags":"../node_modules/core-js/modules/_flags.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.set.js":[function(require,module,exports) {
+'use strict';
+var strong = require('./_collection-strong');
+var validate = require('./_validate-collection');
+var SET = 'Set';
+
+// 23.2 Set Objects
+module.exports = require('./_collection')(SET, function (get) {
+  return function Set() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
+}, {
+  // 23.2.3.1 Set.prototype.add(value)
+  add: function add(value) {
+    return strong.def(validate(this, SET), value = value === 0 ? 0 : value, value);
+  }
+}, strong);
+
+},{"./_collection-strong":"../node_modules/core-js/modules/_collection-strong.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js","./_collection":"../node_modules/core-js/modules/_collection.js"}],"../node_modules/core-js/modules/_wks-ext.js":[function(require,module,exports) {
+exports.f = require('./_wks');
+
+},{"./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_wks-define.js":[function(require,module,exports) {
+
+var global = require('./_global');
+var core = require('./_core');
+var LIBRARY = require('./_library');
+var wksExt = require('./_wks-ext');
+var defineProperty = require('./_object-dp').f;
+module.exports = function (name) {
+  var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
+  if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, { value: wksExt.f(name) });
+};
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_core":"../node_modules/core-js/modules/_core.js","./_library":"../node_modules/core-js/modules/_library.js","./_wks-ext":"../node_modules/core-js/modules/_wks-ext.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js"}],"../node_modules/core-js/modules/_enum-keys.js":[function(require,module,exports) {
+// all enumerable object keys, includes symbols
+var getKeys = require('./_object-keys');
+var gOPS = require('./_object-gops');
+var pIE = require('./_object-pie');
+module.exports = function (it) {
+  var result = getKeys(it);
+  var getSymbols = gOPS.f;
+  if (getSymbols) {
+    var symbols = getSymbols(it);
+    var isEnum = pIE.f;
+    var i = 0;
+    var key;
+    while (symbols.length > i) if (isEnum.call(it, key = symbols[i++])) result.push(key);
+  } return result;
+};
+
+},{"./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_object-gops":"../node_modules/core-js/modules/_object-gops.js","./_object-pie":"../node_modules/core-js/modules/_object-pie.js"}],"../node_modules/core-js/modules/es6.symbol.js":[function(require,module,exports) {
+
+'use strict';
+// ECMAScript 6 symbols shim
+var global = require('./_global');
+var has = require('./_has');
+var DESCRIPTORS = require('./_descriptors');
+var $export = require('./_export');
+var redefine = require('./_redefine');
+var META = require('./_meta').KEY;
+var $fails = require('./_fails');
+var shared = require('./_shared');
+var setToStringTag = require('./_set-to-string-tag');
+var uid = require('./_uid');
+var wks = require('./_wks');
+var wksExt = require('./_wks-ext');
+var wksDefine = require('./_wks-define');
+var enumKeys = require('./_enum-keys');
+var isArray = require('./_is-array');
+var anObject = require('./_an-object');
+var isObject = require('./_is-object');
+var toObject = require('./_to-object');
+var toIObject = require('./_to-iobject');
+var toPrimitive = require('./_to-primitive');
+var createDesc = require('./_property-desc');
+var _create = require('./_object-create');
+var gOPNExt = require('./_object-gopn-ext');
+var $GOPD = require('./_object-gopd');
+var $GOPS = require('./_object-gops');
+var $DP = require('./_object-dp');
+var $keys = require('./_object-keys');
+var gOPD = $GOPD.f;
+var dP = $DP.f;
+var gOPN = gOPNExt.f;
+var $Symbol = global.Symbol;
+var $JSON = global.JSON;
+var _stringify = $JSON && $JSON.stringify;
+var PROTOTYPE = 'prototype';
+var HIDDEN = wks('_hidden');
+var TO_PRIMITIVE = wks('toPrimitive');
+var isEnum = {}.propertyIsEnumerable;
+var SymbolRegistry = shared('symbol-registry');
+var AllSymbols = shared('symbols');
+var OPSymbols = shared('op-symbols');
+var ObjectProto = Object[PROTOTYPE];
+var USE_NATIVE = typeof $Symbol == 'function' && !!$GOPS.f;
+var QObject = global.QObject;
+// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
+var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;
+
+// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
+var setSymbolDesc = DESCRIPTORS && $fails(function () {
+  return _create(dP({}, 'a', {
+    get: function () { return dP(this, 'a', { value: 7 }).a; }
+  })).a != 7;
+}) ? function (it, key, D) {
+  var protoDesc = gOPD(ObjectProto, key);
+  if (protoDesc) delete ObjectProto[key];
+  dP(it, key, D);
+  if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
+} : dP;
+
+var wrap = function (tag) {
+  var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);
+  sym._k = tag;
+  return sym;
+};
+
+var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function (it) {
+  return typeof it == 'symbol';
+} : function (it) {
+  return it instanceof $Symbol;
+};
+
+var $defineProperty = function defineProperty(it, key, D) {
+  if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
+  anObject(it);
+  key = toPrimitive(key, true);
+  anObject(D);
+  if (has(AllSymbols, key)) {
+    if (!D.enumerable) {
+      if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
+      it[HIDDEN][key] = true;
+    } else {
+      if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
+      D = _create(D, { enumerable: createDesc(0, false) });
+    } return setSymbolDesc(it, key, D);
+  } return dP(it, key, D);
+};
+var $defineProperties = function defineProperties(it, P) {
+  anObject(it);
+  var keys = enumKeys(P = toIObject(P));
+  var i = 0;
+  var l = keys.length;
+  var key;
+  while (l > i) $defineProperty(it, key = keys[i++], P[key]);
+  return it;
+};
+var $create = function create(it, P) {
+  return P === undefined ? _create(it) : $defineProperties(_create(it), P);
+};
+var $propertyIsEnumerable = function propertyIsEnumerable(key) {
+  var E = isEnum.call(this, key = toPrimitive(key, true));
+  if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;
+  return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
+};
+var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
+  it = toIObject(it);
+  key = toPrimitive(key, true);
+  if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
+  var D = gOPD(it, key);
+  if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
+  return D;
+};
+var $getOwnPropertyNames = function getOwnPropertyNames(it) {
+  var names = gOPN(toIObject(it));
+  var result = [];
+  var i = 0;
+  var key;
+  while (names.length > i) {
+    if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
+  } return result;
+};
+var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
+  var IS_OP = it === ObjectProto;
+  var names = gOPN(IS_OP ? OPSymbols : toIObject(it));
+  var result = [];
+  var i = 0;
+  var key;
+  while (names.length > i) {
+    if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);
+  } return result;
+};
+
+// 19.4.1.1 Symbol([description])
+if (!USE_NATIVE) {
+  $Symbol = function Symbol() {
+    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
+    var tag = uid(arguments.length > 0 ? arguments[0] : undefined);
+    var $set = function (value) {
+      if (this === ObjectProto) $set.call(OPSymbols, value);
+      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
+      setSymbolDesc(this, tag, createDesc(1, value));
+    };
+    if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, { configurable: true, set: $set });
+    return wrap(tag);
+  };
+  redefine($Symbol[PROTOTYPE], 'toString', function toString() {
+    return this._k;
+  });
+
+  $GOPD.f = $getOwnPropertyDescriptor;
+  $DP.f = $defineProperty;
+  require('./_object-gopn').f = gOPNExt.f = $getOwnPropertyNames;
+  require('./_object-pie').f = $propertyIsEnumerable;
+  $GOPS.f = $getOwnPropertySymbols;
+
+  if (DESCRIPTORS && !require('./_library')) {
+    redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
+  }
+
+  wksExt.f = function (name) {
+    return wrap(wks(name));
+  };
+}
+
+$export($export.G + $export.W + $export.F * !USE_NATIVE, { Symbol: $Symbol });
+
+for (var es6Symbols = (
+  // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14
+  'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'
+).split(','), j = 0; es6Symbols.length > j;)wks(es6Symbols[j++]);
+
+for (var wellKnownSymbols = $keys(wks.store), k = 0; wellKnownSymbols.length > k;) wksDefine(wellKnownSymbols[k++]);
+
+$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
+  // 19.4.2.1 Symbol.for(key)
+  'for': function (key) {
+    return has(SymbolRegistry, key += '')
+      ? SymbolRegistry[key]
+      : SymbolRegistry[key] = $Symbol(key);
+  },
+  // 19.4.2.5 Symbol.keyFor(sym)
+  keyFor: function keyFor(sym) {
+    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');
+    for (var key in SymbolRegistry) if (SymbolRegistry[key] === sym) return key;
+  },
+  useSetter: function () { setter = true; },
+  useSimple: function () { setter = false; }
+});
+
+$export($export.S + $export.F * !USE_NATIVE, 'Object', {
+  // 19.1.2.2 Object.create(O [, Properties])
+  create: $create,
+  // 19.1.2.4 Object.defineProperty(O, P, Attributes)
+  defineProperty: $defineProperty,
+  // 19.1.2.3 Object.defineProperties(O, Properties)
+  defineProperties: $defineProperties,
+  // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
+  getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
+  // 19.1.2.7 Object.getOwnPropertyNames(O)
+  getOwnPropertyNames: $getOwnPropertyNames,
+  // 19.1.2.8 Object.getOwnPropertySymbols(O)
+  getOwnPropertySymbols: $getOwnPropertySymbols
+});
+
+// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
+// https://bugs.chromium.org/p/v8/issues/detail?id=3443
+var FAILS_ON_PRIMITIVES = $fails(function () { $GOPS.f(1); });
+
+$export($export.S + $export.F * FAILS_ON_PRIMITIVES, 'Object', {
+  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
+    return $GOPS.f(toObject(it));
+  }
+});
+
+// 24.3.2 JSON.stringify(value [, replacer [, space]])
+$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {
+  var S = $Symbol();
+  // MS Edge converts symbol values to JSON as {}
+  // WebKit converts symbol values to JSON as null
+  // V8 throws on boxed symbols
+  return _stringify([S]) != '[null]' || _stringify({ a: S }) != '{}' || _stringify(Object(S)) != '{}';
+})), 'JSON', {
+  stringify: function stringify(it) {
+    var args = [it];
+    var i = 1;
+    var replacer, $replacer;
+    while (arguments.length > i) args.push(arguments[i++]);
+    $replacer = replacer = args[1];
+    if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
+    if (!isArray(replacer)) replacer = function (key, value) {
+      if (typeof $replacer == 'function') value = $replacer.call(this, key, value);
+      if (!isSymbol(value)) return value;
+    };
+    args[1] = replacer;
+    return _stringify.apply($JSON, args);
+  }
+});
+
+// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
+$Symbol[PROTOTYPE][TO_PRIMITIVE] || require('./_hide')($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
+// 19.4.3.5 Symbol.prototype[@@toStringTag]
+setToStringTag($Symbol, 'Symbol');
+// 20.2.1.9 Math[@@toStringTag]
+setToStringTag(Math, 'Math', true);
+// 24.3.3 JSON[@@toStringTag]
+setToStringTag(global.JSON, 'JSON', true);
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_has":"../node_modules/core-js/modules/_has.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_export":"../node_modules/core-js/modules/_export.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_shared":"../node_modules/core-js/modules/_shared.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_uid":"../node_modules/core-js/modules/_uid.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_wks-ext":"../node_modules/core-js/modules/_wks-ext.js","./_wks-define":"../node_modules/core-js/modules/_wks-define.js","./_enum-keys":"../node_modules/core-js/modules/_enum-keys.js","./_is-array":"../node_modules/core-js/modules/_is-array.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_object-gopn-ext":"../node_modules/core-js/modules/_object-gopn-ext.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-gops":"../node_modules/core-js/modules/_object-gops.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_object-pie":"../node_modules/core-js/modules/_object-pie.js","./_library":"../node_modules/core-js/modules/_library.js","./_hide":"../node_modules/core-js/modules/_hide.js"}],"../node_modules/core-js/modules/es7.symbol.async-iterator.js":[function(require,module,exports) {
+require('./_wks-define')('asyncIterator');
+
+},{"./_wks-define":"../node_modules/core-js/modules/_wks-define.js"}],"../node_modules/core-js/modules/_string-html.js":[function(require,module,exports) {
+var $export = require('./_export');
+var fails = require('./_fails');
+var defined = require('./_defined');
+var quot = /"/g;
+// B.2.3.2.1 CreateHTML(string, tag, attribute, value)
+var createHTML = function (string, tag, attribute, value) {
+  var S = String(defined(string));
+  var p1 = '<' + tag;
+  if (attribute !== '') p1 += ' ' + attribute + '="' + String(value).replace(quot, '&quot;') + '"';
+  return p1 + '>' + S + '</' + tag + '>';
+};
+module.exports = function (NAME, exec) {
+  var O = {};
+  O[NAME] = exec(createHTML);
+  $export($export.P + $export.F * fails(function () {
+    var test = ''[NAME]('"');
+    return test !== test.toLowerCase() || test.split('"').length > 3;
+  }), 'String', O);
+};
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/es6.string.anchor.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.2 String.prototype.anchor(name)
+require('./_string-html')('anchor', function (createHTML) {
+  return function anchor(name) {
+    return createHTML(this, 'a', 'name', name);
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.big.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.3 String.prototype.big()
+require('./_string-html')('big', function (createHTML) {
+  return function big() {
+    return createHTML(this, 'big', '', '');
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.blink.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.4 String.prototype.blink()
+require('./_string-html')('blink', function (createHTML) {
+  return function blink() {
+    return createHTML(this, 'blink', '', '');
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.bold.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.5 String.prototype.bold()
+require('./_string-html')('bold', function (createHTML) {
+  return function bold() {
+    return createHTML(this, 'b', '', '');
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.code-point-at.js":[function(require,module,exports) {
+'use strict';
+var $export = require('./_export');
+var $at = require('./_string-at')(false);
+$export($export.P, 'String', {
+  // 21.1.3.3 String.prototype.codePointAt(pos)
+  codePointAt: function codePointAt(pos) {
+    return $at(this, pos);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-at":"../node_modules/core-js/modules/_string-at.js"}],"../node_modules/core-js/modules/_string-context.js":[function(require,module,exports) {
+// helper for String#{startsWith, endsWith, includes}
+var isRegExp = require('./_is-regexp');
+var defined = require('./_defined');
+
+module.exports = function (that, searchString, NAME) {
+  if (isRegExp(searchString)) throw TypeError('String#' + NAME + " doesn't accept regex!");
+  return String(defined(that));
+};
+
+},{"./_is-regexp":"../node_modules/core-js/modules/_is-regexp.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_fails-is-regexp.js":[function(require,module,exports) {
+var MATCH = require('./_wks')('match');
+module.exports = function (KEY) {
+  var re = /./;
+  try {
+    '/./'[KEY](re);
+  } catch (e) {
+    try {
+      re[MATCH] = false;
+      return !'/./'[KEY](re);
+    } catch (f) { /* empty */ }
+  } return true;
+};
+
+},{"./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es6.string.ends-with.js":[function(require,module,exports) {
+// 21.1.3.6 String.prototype.endsWith(searchString [, endPosition])
+'use strict';
+var $export = require('./_export');
+var toLength = require('./_to-length');
+var context = require('./_string-context');
+var ENDS_WITH = 'endsWith';
+var $endsWith = ''[ENDS_WITH];
+
+$export($export.P + $export.F * require('./_fails-is-regexp')(ENDS_WITH), 'String', {
+  endsWith: function endsWith(searchString /* , endPosition = @length */) {
+    var that = context(this, searchString, ENDS_WITH);
+    var endPosition = arguments.length > 1 ? arguments[1] : undefined;
+    var len = toLength(that.length);
+    var end = endPosition === undefined ? len : Math.min(toLength(endPosition), len);
+    var search = String(searchString);
+    return $endsWith
+      ? $endsWith.call(that, search, end)
+      : that.slice(end - search.length, end) === search;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_string-context":"../node_modules/core-js/modules/_string-context.js","./_fails-is-regexp":"../node_modules/core-js/modules/_fails-is-regexp.js"}],"../node_modules/core-js/modules/es6.string.fixed.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.6 String.prototype.fixed()
+require('./_string-html')('fixed', function (createHTML) {
+  return function fixed() {
+    return createHTML(this, 'tt', '', '');
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.fontcolor.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.7 String.prototype.fontcolor(color)
+require('./_string-html')('fontcolor', function (createHTML) {
+  return function fontcolor(color) {
+    return createHTML(this, 'font', 'color', color);
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.fontsize.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.8 String.prototype.fontsize(size)
+require('./_string-html')('fontsize', function (createHTML) {
+  return function fontsize(size) {
+    return createHTML(this, 'font', 'size', size);
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.from-code-point.js":[function(require,module,exports) {
+var $export = require('./_export');
+var toAbsoluteIndex = require('./_to-absolute-index');
+var fromCharCode = String.fromCharCode;
+var $fromCodePoint = String.fromCodePoint;
+
+// length should be 1, old FF problem
+$export($export.S + $export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
+  // 21.1.2.2 String.fromCodePoint(...codePoints)
+  fromCodePoint: function fromCodePoint(x) { // eslint-disable-line no-unused-vars
+    var res = [];
+    var aLen = arguments.length;
+    var i = 0;
+    var code;
+    while (aLen > i) {
+      code = +arguments[i++];
+      if (toAbsoluteIndex(code, 0x10ffff) !== code) throw RangeError(code + ' is not a valid code point');
+      res.push(code < 0x10000
+        ? fromCharCode(code)
+        : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00)
+      );
+    } return res.join('');
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js"}],"../node_modules/core-js/modules/es6.string.includes.js":[function(require,module,exports) {
+// 21.1.3.7 String.prototype.includes(searchString, position = 0)
+'use strict';
+var $export = require('./_export');
+var context = require('./_string-context');
+var INCLUDES = 'includes';
+
+$export($export.P + $export.F * require('./_fails-is-regexp')(INCLUDES), 'String', {
+  includes: function includes(searchString /* , position = 0 */) {
+    return !!~context(this, searchString, INCLUDES)
+      .indexOf(searchString, arguments.length > 1 ? arguments[1] : undefined);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-context":"../node_modules/core-js/modules/_string-context.js","./_fails-is-regexp":"../node_modules/core-js/modules/_fails-is-regexp.js"}],"../node_modules/core-js/modules/es6.string.italics.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.9 String.prototype.italics()
+require('./_string-html')('italics', function (createHTML) {
+  return function italics() {
+    return createHTML(this, 'i', '', '');
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.iterator.js":[function(require,module,exports) {
+'use strict';
+var $at = require('./_string-at')(true);
+
+// 21.1.3.27 String.prototype[@@iterator]()
+require('./_iter-define')(String, 'String', function (iterated) {
+  this._t = String(iterated); // target
+  this._i = 0;                // next index
+// 21.1.5.2.1 %StringIteratorPrototype%.next()
+}, function () {
+  var O = this._t;
+  var index = this._i;
+  var point;
+  if (index >= O.length) return { value: undefined, done: true };
+  point = $at(O, index);
+  this._i += point.length;
+  return { value: point, done: false };
+});
+
+},{"./_string-at":"../node_modules/core-js/modules/_string-at.js","./_iter-define":"../node_modules/core-js/modules/_iter-define.js"}],"../node_modules/core-js/modules/es6.string.link.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.10 String.prototype.link(url)
+require('./_string-html')('link', function (createHTML) {
+  return function link(url) {
+    return createHTML(this, 'a', 'href', url);
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/_string-repeat.js":[function(require,module,exports) {
+'use strict';
+var toInteger = require('./_to-integer');
+var defined = require('./_defined');
+
+module.exports = function repeat(count) {
+  var str = String(defined(this));
+  var res = '';
+  var n = toInteger(count);
+  if (n < 0 || n == Infinity) throw RangeError("Count can't be negative");
+  for (;n > 0; (n >>>= 1) && (str += str)) if (n & 1) res += str;
+  return res;
+};
+
+},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_string-pad.js":[function(require,module,exports) {
+// https://github.com/tc39/proposal-string-pad-start-end
+var toLength = require('./_to-length');
+var repeat = require('./_string-repeat');
+var defined = require('./_defined');
+
+module.exports = function (that, maxLength, fillString, left) {
+  var S = String(defined(that));
+  var stringLength = S.length;
+  var fillStr = fillString === undefined ? ' ' : String(fillString);
+  var intMaxLength = toLength(maxLength);
+  if (intMaxLength <= stringLength || fillStr == '') return S;
+  var fillLen = intMaxLength - stringLength;
+  var stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));
+  if (stringFiller.length > fillLen) stringFiller = stringFiller.slice(0, fillLen);
+  return left ? stringFiller + S : S + stringFiller;
+};
+
+},{"./_to-length":"../node_modules/core-js/modules/_to-length.js","./_string-repeat":"../node_modules/core-js/modules/_string-repeat.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/es7.string.pad-start.js":[function(require,module,exports) {
+'use strict';
+// https://github.com/tc39/proposal-string-pad-start-end
+var $export = require('./_export');
+var $pad = require('./_string-pad');
+var userAgent = require('./_user-agent');
+
+// https://github.com/zloirock/core-js/issues/280
+var WEBKIT_BUG = /Version\/10\.\d+(\.\d+)?( Mobile\/\w+)? Safari\//.test(userAgent);
+
+$export($export.P + $export.F * WEBKIT_BUG, 'String', {
+  padStart: function padStart(maxLength /* , fillString = ' ' */) {
+    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, true);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-pad":"../node_modules/core-js/modules/_string-pad.js","./_user-agent":"../node_modules/core-js/modules/_user-agent.js"}],"../node_modules/core-js/modules/es7.string.pad-end.js":[function(require,module,exports) {
+'use strict';
+// https://github.com/tc39/proposal-string-pad-start-end
+var $export = require('./_export');
+var $pad = require('./_string-pad');
+var userAgent = require('./_user-agent');
+
+// https://github.com/zloirock/core-js/issues/280
+var WEBKIT_BUG = /Version\/10\.\d+(\.\d+)?( Mobile\/\w+)? Safari\//.test(userAgent);
+
+$export($export.P + $export.F * WEBKIT_BUG, 'String', {
+  padEnd: function padEnd(maxLength /* , fillString = ' ' */) {
+    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, false);
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-pad":"../node_modules/core-js/modules/_string-pad.js","./_user-agent":"../node_modules/core-js/modules/_user-agent.js"}],"../node_modules/core-js/modules/es6.string.raw.js":[function(require,module,exports) {
+var $export = require('./_export');
+var toIObject = require('./_to-iobject');
+var toLength = require('./_to-length');
+
+$export($export.S, 'String', {
+  // 21.1.2.4 String.raw(callSite, ...substitutions)
+  raw: function raw(callSite) {
+    var tpl = toIObject(callSite.raw);
+    var len = toLength(tpl.length);
+    var aLen = arguments.length;
+    var res = [];
+    var i = 0;
+    while (len > i) {
+      res.push(String(tpl[i++]));
+      if (i < aLen) res.push(String(arguments[i]));
+    } return res.join('');
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_to-length":"../node_modules/core-js/modules/_to-length.js"}],"../node_modules/core-js/modules/es6.string.repeat.js":[function(require,module,exports) {
+var $export = require('./_export');
+
+$export($export.P, 'String', {
+  // 21.1.3.13 String.prototype.repeat(count)
+  repeat: require('./_string-repeat')
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-repeat":"../node_modules/core-js/modules/_string-repeat.js"}],"../node_modules/core-js/modules/es6.string.small.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.11 String.prototype.small()
+require('./_string-html')('small', function (createHTML) {
+  return function small() {
+    return createHTML(this, 'small', '', '');
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.starts-with.js":[function(require,module,exports) {
+// 21.1.3.18 String.prototype.startsWith(searchString [, position ])
+'use strict';
+var $export = require('./_export');
+var toLength = require('./_to-length');
+var context = require('./_string-context');
+var STARTS_WITH = 'startsWith';
+var $startsWith = ''[STARTS_WITH];
+
+$export($export.P + $export.F * require('./_fails-is-regexp')(STARTS_WITH), 'String', {
+  startsWith: function startsWith(searchString /* , position = 0 */) {
+    var that = context(this, searchString, STARTS_WITH);
+    var index = toLength(Math.min(arguments.length > 1 ? arguments[1] : undefined, that.length));
+    var search = String(searchString);
+    return $startsWith
+      ? $startsWith.call(that, search, index)
+      : that.slice(index, index + search.length) === search;
+  }
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_string-context":"../node_modules/core-js/modules/_string-context.js","./_fails-is-regexp":"../node_modules/core-js/modules/_fails-is-regexp.js"}],"../node_modules/core-js/modules/es6.string.strike.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.12 String.prototype.strike()
+require('./_string-html')('strike', function (createHTML) {
+  return function strike() {
+    return createHTML(this, 'strike', '', '');
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.sub.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.13 String.prototype.sub()
+require('./_string-html')('sub', function (createHTML) {
+  return function sub() {
+    return createHTML(this, 'sub', '', '');
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.sup.js":[function(require,module,exports) {
+'use strict';
+// B.2.3.14 String.prototype.sup()
+require('./_string-html')('sup', function (createHTML) {
+  return function sup() {
+    return createHTML(this, 'sup', '', '');
+  };
+});
+
+},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es7.string.trim-left.js":[function(require,module,exports) {
+'use strict';
+// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
+require('./_string-trim')('trimLeft', function ($trim) {
+  return function trimLeft() {
+    return $trim(this, 1);
+  };
+}, 'trimStart');
+
+},{"./_string-trim":"../node_modules/core-js/modules/_string-trim.js"}],"../node_modules/core-js/modules/es7.string.trim-right.js":[function(require,module,exports) {
+'use strict';
+// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
+require('./_string-trim')('trimRight', function ($trim) {
+  return function trimRight() {
+    return $trim(this, 2);
+  };
+}, 'trimEnd');
+
+},{"./_string-trim":"../node_modules/core-js/modules/_string-trim.js"}],"../node_modules/core-js/modules/_typed.js":[function(require,module,exports) {
+
+var global = require('./_global');
+var hide = require('./_hide');
+var uid = require('./_uid');
+var TYPED = uid('typed_array');
+var VIEW = uid('view');
+var ABV = !!(global.ArrayBuffer && global.DataView);
+var CONSTR = ABV;
+var i = 0;
+var l = 9;
+var Typed;
+
+var TypedArrayConstructors = (
+  'Int8Array,Uint8Array,Uint8ClampedArray,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array'
+).split(',');
+
+while (i < l) {
+  if (Typed = global[TypedArrayConstructors[i++]]) {
+    hide(Typed.prototype, TYPED, true);
+    hide(Typed.prototype, VIEW, true);
+  } else CONSTR = false;
+}
+
+module.exports = {
+  ABV: ABV,
+  CONSTR: CONSTR,
+  TYPED: TYPED,
+  VIEW: VIEW
+};
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_uid":"../node_modules/core-js/modules/_uid.js"}],"../node_modules/core-js/modules/_to-index.js":[function(require,module,exports) {
+// https://tc39.github.io/ecma262/#sec-toindex
+var toInteger = require('./_to-integer');
+var toLength = require('./_to-length');
+module.exports = function (it) {
+  if (it === undefined) return 0;
+  var number = toInteger(it);
+  var length = toLength(number);
+  if (number !== length) throw RangeError('Wrong length!');
+  return length;
+};
+
+},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_to-length":"../node_modules/core-js/modules/_to-length.js"}],"../node_modules/core-js/modules/_typed-buffer.js":[function(require,module,exports) {
+
+'use strict';
+var global = require('./_global');
+var DESCRIPTORS = require('./_descriptors');
+var LIBRARY = require('./_library');
+var $typed = require('./_typed');
+var hide = require('./_hide');
+var redefineAll = require('./_redefine-all');
+var fails = require('./_fails');
+var anInstance = require('./_an-instance');
+var toInteger = require('./_to-integer');
+var toLength = require('./_to-length');
+var toIndex = require('./_to-index');
+var gOPN = require('./_object-gopn').f;
+var dP = require('./_object-dp').f;
+var arrayFill = require('./_array-fill');
+var setToStringTag = require('./_set-to-string-tag');
+var ARRAY_BUFFER = 'ArrayBuffer';
+var DATA_VIEW = 'DataView';
+var PROTOTYPE = 'prototype';
+var WRONG_LENGTH = 'Wrong length!';
+var WRONG_INDEX = 'Wrong index!';
+var $ArrayBuffer = global[ARRAY_BUFFER];
+var $DataView = global[DATA_VIEW];
+var Math = global.Math;
+var RangeError = global.RangeError;
+// eslint-disable-next-line no-shadow-restricted-names
+var Infinity = global.Infinity;
+var BaseBuffer = $ArrayBuffer;
+var abs = Math.abs;
+var pow = Math.pow;
+var floor = Math.floor;
+var log = Math.log;
+var LN2 = Math.LN2;
+var BUFFER = 'buffer';
+var BYTE_LENGTH = 'byteLength';
+var BYTE_OFFSET = 'byteOffset';
+var $BUFFER = DESCRIPTORS ? '_b' : BUFFER;
+var $LENGTH = DESCRIPTORS ? '_l' : BYTE_LENGTH;
+var $OFFSET = DESCRIPTORS ? '_o' : BYTE_OFFSET;
+
+// IEEE754 conversions based on https://github.com/feross/ieee754
+function packIEEE754(value, mLen, nBytes) {
+  var buffer = new Array(nBytes);
+  var eLen = nBytes * 8 - mLen - 1;
+  var eMax = (1 << eLen) - 1;
+  var eBias = eMax >> 1;
+  var rt = mLen === 23 ? pow(2, -24) - pow(2, -77) : 0;
+  var i = 0;
+  var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0;
+  var e, m, c;
+  value = abs(value);
+  // eslint-disable-next-line no-self-compare
+  if (value != value || value === Infinity) {
+    // eslint-disable-next-line no-self-compare
+    m = value != value ? 1 : 0;
+    e = eMax;
+  } else {
+    e = floor(log(value) / LN2);
+    if (value * (c = pow(2, -e)) < 1) {
+      e--;
+      c *= 2;
+    }
+    if (e + eBias >= 1) {
+      value += rt / c;
+    } else {
+      value += rt * pow(2, 1 - eBias);
+    }
+    if (value * c >= 2) {
+      e++;
+      c /= 2;
+    }
+    if (e + eBias >= eMax) {
+      m = 0;
+      e = eMax;
+    } else if (e + eBias >= 1) {
+      m = (value * c - 1) * pow(2, mLen);
+      e = e + eBias;
+    } else {
+      m = value * pow(2, eBias - 1) * pow(2, mLen);
+      e = 0;
+    }
+  }
+  for (; mLen >= 8; buffer[i++] = m & 255, m /= 256, mLen -= 8);
+  e = e << mLen | m;
+  eLen += mLen;
+  for (; eLen > 0; buffer[i++] = e & 255, e /= 256, eLen -= 8);
+  buffer[--i] |= s * 128;
+  return buffer;
+}
+function unpackIEEE754(buffer, mLen, nBytes) {
+  var eLen = nBytes * 8 - mLen - 1;
+  var eMax = (1 << eLen) - 1;
+  var eBias = eMax >> 1;
+  var nBits = eLen - 7;
+  var i = nBytes - 1;
+  var s = buffer[i--];
+  var e = s & 127;
+  var m;
+  s >>= 7;
+  for (; nBits > 0; e = e * 256 + buffer[i], i--, nBits -= 8);
+  m = e & (1 << -nBits) - 1;
+  e >>= -nBits;
+  nBits += mLen;
+  for (; nBits > 0; m = m * 256 + buffer[i], i--, nBits -= 8);
+  if (e === 0) {
+    e = 1 - eBias;
+  } else if (e === eMax) {
+    return m ? NaN : s ? -Infinity : Infinity;
+  } else {
+    m = m + pow(2, mLen);
+    e = e - eBias;
+  } return (s ? -1 : 1) * m * pow(2, e - mLen);
+}
+
+function unpackI32(bytes) {
+  return bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0];
+}
+function packI8(it) {
+  return [it & 0xff];
+}
+function packI16(it) {
+  return [it & 0xff, it >> 8 & 0xff];
+}
+function packI32(it) {
+  return [it & 0xff, it >> 8 & 0xff, it >> 16 & 0xff, it >> 24 & 0xff];
+}
+function packF64(it) {
+  return packIEEE754(it, 52, 8);
+}
+function packF32(it) {
+  return packIEEE754(it, 23, 4);
+}
+
+function addGetter(C, key, internal) {
+  dP(C[PROTOTYPE], key, { get: function () { return this[internal]; } });
+}
+
+function get(view, bytes, index, isLittleEndian) {
+  var numIndex = +index;
+  var intIndex = toIndex(numIndex);
+  if (intIndex + bytes > view[$LENGTH]) throw RangeError(WRONG_INDEX);
+  var store = view[$BUFFER]._b;
+  var start = intIndex + view[$OFFSET];
+  var pack = store.slice(start, start + bytes);
+  return isLittleEndian ? pack : pack.reverse();
+}
+function set(view, bytes, index, conversion, value, isLittleEndian) {
+  var numIndex = +index;
+  var intIndex = toIndex(numIndex);
+  if (intIndex + bytes > view[$LENGTH]) throw RangeError(WRONG_INDEX);
+  var store = view[$BUFFER]._b;
+  var start = intIndex + view[$OFFSET];
+  var pack = conversion(+value);
+  for (var i = 0; i < bytes; i++) store[start + i] = pack[isLittleEndian ? i : bytes - i - 1];
+}
+
+if (!$typed.ABV) {
+  $ArrayBuffer = function ArrayBuffer(length) {
+    anInstance(this, $ArrayBuffer, ARRAY_BUFFER);
+    var byteLength = toIndex(length);
+    this._b = arrayFill.call(new Array(byteLength), 0);
+    this[$LENGTH] = byteLength;
+  };
+
+  $DataView = function DataView(buffer, byteOffset, byteLength) {
+    anInstance(this, $DataView, DATA_VIEW);
+    anInstance(buffer, $ArrayBuffer, DATA_VIEW);
+    var bufferLength = buffer[$LENGTH];
+    var offset = toInteger(byteOffset);
+    if (offset < 0 || offset > bufferLength) throw RangeError('Wrong offset!');
+    byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);
+    if (offset + byteLength > bufferLength) throw RangeError(WRONG_LENGTH);
+    this[$BUFFER] = buffer;
+    this[$OFFSET] = offset;
+    this[$LENGTH] = byteLength;
+  };
+
+  if (DESCRIPTORS) {
+    addGetter($ArrayBuffer, BYTE_LENGTH, '_l');
+    addGetter($DataView, BUFFER, '_b');
+    addGetter($DataView, BYTE_LENGTH, '_l');
+    addGetter($DataView, BYTE_OFFSET, '_o');
+  }
+
+  redefineAll($DataView[PROTOTYPE], {
+    getInt8: function getInt8(byteOffset) {
+      return get(this, 1, byteOffset)[0] << 24 >> 24;
+    },
+    getUint8: function getUint8(byteOffset) {
+      return get(this, 1, byteOffset)[0];
+    },
+    getInt16: function getInt16(byteOffset /* , littleEndian */) {
+      var bytes = get(this, 2, byteOffset, arguments[1]);
+      return (bytes[1] << 8 | bytes[0]) << 16 >> 16;
+    },
+    getUint16: function getUint16(byteOffset /* , littleEndian */) {
+      var bytes = get(this, 2, byteOffset, arguments[1]);
+      return bytes[1] << 8 | bytes[0];
+    },
+    getInt32: function getInt32(byteOffset /* , littleEndian */) {
+      return unpackI32(get(this, 4, byteOffset, arguments[1]));
+    },
+    getUint32: function getUint32(byteOffset /* , littleEndian */) {
+      return unpackI32(get(this, 4, byteOffset, arguments[1])) >>> 0;
+    },
+    getFloat32: function getFloat32(byteOffset /* , littleEndian */) {
+      return unpackIEEE754(get(this, 4, byteOffset, arguments[1]), 23, 4);
+    },
+    getFloat64: function getFloat64(byteOffset /* , littleEndian */) {
+      return unpackIEEE754(get(this, 8, byteOffset, arguments[1]), 52, 8);
+    },
+    setInt8: function setInt8(byteOffset, value) {
+      set(this, 1, byteOffset, packI8, value);
+    },
+    setUint8: function setUint8(byteOffset, value) {
+      set(this, 1, byteOffset, packI8, value);
+    },
+    setInt16: function setInt16(byteOffset, value /* , littleEndian */) {
+      set(this, 2, byteOffset, packI16, value, arguments[2]);
+    },
+    setUint16: function setUint16(byteOffset, value /* , littleEndian */) {
+      set(this, 2, byteOffset, packI16, value, arguments[2]);
+    },
+    setInt32: function setInt32(byteOffset, value /* , littleEndian */) {
+      set(this, 4, byteOffset, packI32, value, arguments[2]);
+    },
+    setUint32: function setUint32(byteOffset, value /* , littleEndian */) {
+      set(this, 4, byteOffset, packI32, value, arguments[2]);
+    },
+    setFloat32: function setFloat32(byteOffset, value /* , littleEndian */) {
+      set(this, 4, byteOffset, packF32, value, arguments[2]);
+    },
+    setFloat64: function setFloat64(byteOffset, value /* , littleEndian */) {
+      set(this, 8, byteOffset, packF64, value, arguments[2]);
+    }
+  });
+} else {
+  if (!fails(function () {
+    $ArrayBuffer(1);
+  }) || !fails(function () {
+    new $ArrayBuffer(-1); // eslint-disable-line no-new
+  }) || fails(function () {
+    new $ArrayBuffer(); // eslint-disable-line no-new
+    new $ArrayBuffer(1.5); // eslint-disable-line no-new
+    new $ArrayBuffer(NaN); // eslint-disable-line no-new
+    return $ArrayBuffer.name != ARRAY_BUFFER;
+  })) {
+    $ArrayBuffer = function ArrayBuffer(length) {
+      anInstance(this, $ArrayBuffer);
+      return new BaseBuffer(toIndex(length));
+    };
+    var ArrayBufferProto = $ArrayBuffer[PROTOTYPE] = BaseBuffer[PROTOTYPE];
+    for (var keys = gOPN(BaseBuffer), j = 0, key; keys.length > j;) {
+      if (!((key = keys[j++]) in $ArrayBuffer)) hide($ArrayBuffer, key, BaseBuffer[key]);
+    }
+    if (!LIBRARY) ArrayBufferProto.constructor = $ArrayBuffer;
+  }
+  // iOS Safari 7.x bug
+  var view = new $DataView(new $ArrayBuffer(2));
+  var $setInt8 = $DataView[PROTOTYPE].setInt8;
+  view.setInt8(0, 2147483648);
+  view.setInt8(1, 2147483649);
+  if (view.getInt8(0) || !view.getInt8(1)) redefineAll($DataView[PROTOTYPE], {
+    setInt8: function setInt8(byteOffset, value) {
+      $setInt8.call(this, byteOffset, value << 24 >> 24);
+    },
+    setUint8: function setUint8(byteOffset, value) {
+      $setInt8.call(this, byteOffset, value << 24 >> 24);
+    }
+  }, true);
+}
+setToStringTag($ArrayBuffer, ARRAY_BUFFER);
+setToStringTag($DataView, DATA_VIEW);
+hide($DataView[PROTOTYPE], $typed.VIEW, true);
+exports[ARRAY_BUFFER] = $ArrayBuffer;
+exports[DATA_VIEW] = $DataView;
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_library":"../node_modules/core-js/modules/_library.js","./_typed":"../node_modules/core-js/modules/_typed.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_to-index":"../node_modules/core-js/modules/_to-index.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_array-fill":"../node_modules/core-js/modules/_array-fill.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js"}],"../node_modules/core-js/modules/es6.typed.array-buffer.js":[function(require,module,exports) {
+'use strict';
+var $export = require('./_export');
+var $typed = require('./_typed');
+var buffer = require('./_typed-buffer');
+var anObject = require('./_an-object');
+var toAbsoluteIndex = require('./_to-absolute-index');
+var toLength = require('./_to-length');
+var isObject = require('./_is-object');
+var ArrayBuffer = require('./_global').ArrayBuffer;
+var speciesConstructor = require('./_species-constructor');
+var $ArrayBuffer = buffer.ArrayBuffer;
+var $DataView = buffer.DataView;
+var $isView = $typed.ABV && ArrayBuffer.isView;
+var $slice = $ArrayBuffer.prototype.slice;
+var VIEW = $typed.VIEW;
+var ARRAY_BUFFER = 'ArrayBuffer';
+
+$export($export.G + $export.W + $export.F * (ArrayBuffer !== $ArrayBuffer), { ArrayBuffer: $ArrayBuffer });
+
+$export($export.S + $export.F * !$typed.CONSTR, ARRAY_BUFFER, {
+  // 24.1.3.1 ArrayBuffer.isView(arg)
+  isView: function isView(it) {
+    return $isView && $isView(it) || isObject(it) && VIEW in it;
+  }
+});
+
+$export($export.P + $export.U + $export.F * require('./_fails')(function () {
+  return !new $ArrayBuffer(2).slice(1, undefined).byteLength;
+}), ARRAY_BUFFER, {
+  // 24.1.4.3 ArrayBuffer.prototype.slice(start, end)
+  slice: function slice(start, end) {
+    if ($slice !== undefined && end === undefined) return $slice.call(anObject(this), start); // FF fix
+    var len = anObject(this).byteLength;
+    var first = toAbsoluteIndex(start, len);
+    var fin = toAbsoluteIndex(end === undefined ? len : end, len);
+    var result = new (speciesConstructor(this, $ArrayBuffer))(toLength(fin - first));
+    var viewS = new $DataView(this);
+    var viewT = new $DataView(result);
+    var index = 0;
+    while (first < fin) {
+      viewT.setUint8(index++, viewS.getUint8(first++));
+    } return result;
+  }
+});
+
+require('./_set-species')(ARRAY_BUFFER);
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_typed":"../node_modules/core-js/modules/_typed.js","./_typed-buffer":"../node_modules/core-js/modules/_typed-buffer.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_global":"../node_modules/core-js/modules/_global.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_set-species":"../node_modules/core-js/modules/_set-species.js"}],"../node_modules/core-js/modules/_typed-array.js":[function(require,module,exports) {
 var global = arguments[3];
-var r=arguments[3],e=require("./_an-object"),t=require("./_to-object"),n=require("./_to-length"),i=require("./_to-integer"),a=require("./_advance-string-index"),u=require("./_regexp-exec-abstract"),c=Math.max,l=Math.min,o=Math.floor,v=/\$([$&`']|\d\d?|<[^>]*>)/g,s=/\$([$&`']|\d\d?)/g,g=function(r){return void 0===r?r:String(r)};require("./_fix-re-wks")("replace",2,function(r,d,f,h){return[function(e,t){var n=r(this),i=null==e?void 0:e[d];return void 0!==i?i.call(e,n,t):f.call(String(n),e,t)},function(r,t){var o=h(f,r,this,t);if(o.done)return o.value;var v=e(r),s=String(this),d="function"==typeof t;d||(t=String(t));var x=v.global;if(x){var b=v.unicode;v.lastIndex=0}for(var q=[];;){var S=u(v,s);if(null===S)break;if(q.push(S),!x)break;""===String(S[0])&&(v.lastIndex=a(s,n(v.lastIndex),b))}for(var _="",$=0,k=0;k<q.length;k++){S=q[k];for(var m=String(S[0]),A=c(l(i(S.index),s.length),0),I=[],M=1;M<S.length;M++)I.push(g(S[M]));var j=S.groups;if(d){var w=[m].concat(I,A,s);void 0!==j&&w.push(j);var y=String(t.apply(void 0,w))}else y=p(m,s,A,I,j,t);A>=$&&(_+=s.slice($,A)+y,$=A+m.length)}return _+s.slice($)}];function p(r,e,n,i,a,u){var c=n+r.length,l=i.length,g=s;return void 0!==a&&(a=t(a),g=v),f.call(u,g,function(t,u){var v;switch(u.charAt(0)){case"$":return"$";case"&":return r;case"`":return e.slice(0,n);case"'":return e.slice(c);case"<":v=a[u.slice(1,-1)];break;default:var s=+u;if(0===s)return t;if(s>l){var g=o(s/10);return 0===g?t:g<=l?void 0===i[g-1]?u.charAt(1):i[g-1]+u.charAt(1):t}v=i[s-1]}return void 0===v?"":v})}});
-},{"./_an-object":"eT53","./_to-object":"rfVX","./_to-length":"dJBs","./_to-integer":"yjVO","./_advance-string-index":"t3as","./_regexp-exec-abstract":"sNFG","./_fix-re-wks":"LmBS"}],"aOHf":[function(require,module,exports) {
-"use strict";var e=require("./_is-regexp"),r=require("./_an-object"),i=require("./_species-constructor"),n=require("./_advance-string-index"),t=require("./_to-length"),u=require("./_regexp-exec-abstract"),l=require("./_regexp-exec"),s=require("./_fails"),c=Math.min,a=[].push,o="split",g="length",h="lastIndex",d=4294967295,f=!s(function(){RegExp(d,"y")});require("./_fix-re-wks")("split",2,function(s,v,p,x){var q;return q="c"=="abbc"[o](/(b)*/)[1]||4!="test"[o](/(?:)/,-1)[g]||2!="ab"[o](/(?:ab)*/)[g]||4!="."[o](/(.?)(.?)/)[g]||"."[o](/()()/)[g]>1||""[o](/.?/)[g]?function(r,i){var n=String(this);if(void 0===r&&0===i)return[];if(!e(r))return p.call(n,r,i);for(var t,u,s,c=[],o=(r.ignoreCase?"i":"")+(r.multiline?"m":"")+(r.unicode?"u":"")+(r.sticky?"y":""),f=0,v=void 0===i?d:i>>>0,x=new RegExp(r.source,o+"g");(t=l.call(x,n))&&!((u=x[h])>f&&(c.push(n.slice(f,t.index)),t[g]>1&&t.index<n[g]&&a.apply(c,t.slice(1)),s=t[0][g],f=u,c[g]>=v));)x[h]===t.index&&x[h]++;return f===n[g]?!s&&x.test("")||c.push(""):c.push(n.slice(f)),c[g]>v?c.slice(0,v):c}:"0"[o](void 0,0)[g]?function(e,r){return void 0===e&&0===r?[]:p.call(this,e,r)}:p,[function(e,r){var i=s(this),n=null==e?void 0:e[v];return void 0!==n?n.call(e,i,r):q.call(String(i),e,r)},function(e,l){var s=x(q,e,this,l,q!==p);if(s.done)return s.value;var a=r(e),o=String(this),g=i(a,RegExp),h=a.unicode,v=(a.ignoreCase?"i":"")+(a.multiline?"m":"")+(a.unicode?"u":"")+(f?"y":"g"),_=new g(f?a:"^(?:"+a.source+")",v),b=void 0===l?d:l>>>0;if(0===b)return[];if(0===o.length)return null===u(_,o)?[o]:[];for(var m=0,y=0,w=[];y<o.length;){_.lastIndex=f?y:0;var E,I=u(_,f?o:o.slice(y));if(null===I||(E=c(t(_.lastIndex+(f?0:y)),o.length))===m)y=n(o,y,h);else{if(w.push(o.slice(m,y)),w.length===b)return w;for(var R=1;R<=I.length-1;R++)if(w.push(I[R]),w.length===b)return w;y=m=E}}return w.push(o.slice(m)),w}]});
-},{"./_is-regexp":"WEVF","./_an-object":"eT53","./_species-constructor":"ExG3","./_advance-string-index":"t3as","./_to-length":"dJBs","./_regexp-exec-abstract":"sNFG","./_regexp-exec":"ZcPD","./_fails":"BXiR","./_fix-re-wks":"LmBS"}],"zOab":[function(require,module,exports) {
-"use strict";var e=require("./_an-object"),r=require("./_same-value"),n=require("./_regexp-exec-abstract");require("./_fix-re-wks")("search",1,function(t,i,a,u){return[function(e){var r=t(this),n=null==e?void 0:e[i];return void 0!==n?n.call(e,r):new RegExp(e)[i](String(r))},function(t){var i=u(a,t,this);if(i.done)return i.value;var s=e(t),l=String(this),c=s.lastIndex;r(c,0)||(s.lastIndex=0);var v=n(s,l);return r(s.lastIndex,c)||(s.lastIndex=c),null===v?-1:v.index}]});
-},{"./_an-object":"eT53","./_same-value":"zutv","./_regexp-exec-abstract":"sNFG","./_fix-re-wks":"LmBS"}],"iflU":[function(require,module,exports) {
-
-"use strict";require("./es6.regexp.flags");var e=require("./_an-object"),r=require("./_flags"),i=require("./_descriptors"),n="toString",t=/./[n],a=function(e){require("./_redefine")(RegExp.prototype,n,e,!0)};require("./_fails")(function(){return"/a/b"!=t.call({source:"a",flags:"b"})})?a(function(){var n=e(this);return"/".concat(n.source,"/","flags"in n?n.flags:!i&&n instanceof RegExp?r.call(n):void 0)}):t.name!=n&&a(function(){return t.call(this)});
-},{"./es6.regexp.flags":"pDhD","./_an-object":"eT53","./_flags":"hgks","./_descriptors":"P9Ib","./_redefine":"PHot","./_fails":"BXiR"}],"coyu":[function(require,module,exports) {
-"use strict";var e=require("./_collection-strong"),t=require("./_validate-collection"),r="Set";module.exports=require("./_collection")(r,function(e){return function(){return e(this,arguments.length>0?arguments[0]:void 0)}},{add:function(i){return e.def(t(this,r),i=0===i?0:i,i)}},e);
-},{"./_collection-strong":"aIiY","./_validate-collection":"FW4z","./_collection":"hWYB"}],"AuE7":[function(require,module,exports) {
-exports.f=require("./_wks");
-},{"./_wks":"AIP1"}],"r4vV":[function(require,module,exports) {
-
-var r=require("./_global"),e=require("./_core"),o=require("./_library"),i=require("./_wks-ext"),l=require("./_object-dp").f;module.exports=function(u){var a=e.Symbol||(e.Symbol=o?{}:r.Symbol||{});"_"==u.charAt(0)||u in a||l(a,u,{value:i.f(u)})};
-},{"./_global":"qf4T","./_core":"ss9A","./_library":"H21C","./_wks-ext":"AuE7","./_object-dp":"nw8e"}],"jjwB":[function(require,module,exports) {
-var e=require("./_object-keys"),r=require("./_object-gops"),o=require("./_object-pie");module.exports=function(t){var u=e(t),i=r.f;if(i)for(var c,f=i(t),a=o.f,l=0;f.length>l;)a.call(t,c=f[l++])&&u.push(c);return u};
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-},{"./_global":"qf4T","./_descriptors":"P9Ib","./_library":"H21C","./_typed":"fero","./_hide":"NXbe","./_redefine-all":"J0Tl","./_fails":"BXiR","./_an-instance":"yJTF","./_to-integer":"yjVO","./_to-length":"dJBs","./_to-index":"zj2i","./_object-gopn":"Vzm0","./_object-dp":"nw8e","./_array-fill":"hphS","./_set-to-string-tag":"rq3q"}],"NJ0a":[function(require,module,exports) {
-"use strict";var e=require("./_export"),r=require("./_typed"),i=require("./_typed-buffer"),t=require("./_an-object"),u=require("./_to-absolute-index"),n=require("./_to-length"),s=require("./_is-object"),o=require("./_global").ArrayBuffer,f=require("./_species-constructor"),c=i.ArrayBuffer,a=i.DataView,q=r.ABV&&o.isView,_=c.prototype.slice,l=r.VIEW,y="ArrayBuffer";e(e.G+e.W+e.F*(o!==c),{ArrayBuffer:c}),e(e.S+e.F*!r.CONSTR,y,{isView:function(e){return q&&q(e)||s(e)&&l in e}}),e(e.P+e.U+e.F*require("./_fails")(function(){return!new c(2).slice(1,void 0).byteLength}),y,{slice:function(e,r){if(void 0!==_&&void 0===r)return _.call(t(this),e);for(var i=t(this).byteLength,s=u(e,i),o=u(void 0===r?i:r,i),q=new(f(this,c))(n(o-s)),l=new a(this),y=new a(q),b=0;s<o;)y.setUint8(b++,l.getUint8(s++));return q}}),require("./_set-species")(y);
-},{"./_export":"izCb","./_typed":"fero","./_typed-buffer":"Ujpk","./_an-object":"eT53","./_to-absolute-index":"vfEH","./_to-length":"dJBs","./_is-object":"M7z6","./_global":"qf4T","./_species-constructor":"ExG3","./_fails":"BXiR","./_set-species":"h4dH"}],"fd04":[function(require,module,exports) {
+'use strict';
+if (require('./_descriptors')) {
+  var LIBRARY = require('./_library');
+  var global = require('./_global');
+  var fails = require('./_fails');
+  var $export = require('./_export');
+  var $typed = require('./_typed');
+  var $buffer = require('./_typed-buffer');
+  var ctx = require('./_ctx');
+  var anInstance = require('./_an-instance');
+  var propertyDesc = require('./_property-desc');
+  var hide = require('./_hide');
+  var redefineAll = require('./_redefine-all');
+  var toInteger = require('./_to-integer');
+  var toLength = require('./_to-length');
+  var toIndex = require('./_to-index');
+  var toAbsoluteIndex = require('./_to-absolute-index');
+  var toPrimitive = require('./_to-primitive');
+  var has = require('./_has');
+  var classof = require('./_classof');
+  var isObject = require('./_is-object');
+  var toObject = require('./_to-object');
+  var isArrayIter = require('./_is-array-iter');
+  var create = require('./_object-create');
+  var getPrototypeOf = require('./_object-gpo');
+  var gOPN = require('./_object-gopn').f;
+  var getIterFn = require('./core.get-iterator-method');
+  var uid = require('./_uid');
+  var wks = require('./_wks');
+  var createArrayMethod = require('./_array-methods');
+  var createArrayIncludes = require('./_array-includes');
+  var speciesConstructor = require('./_species-constructor');
+  var ArrayIterators = require('./es6.array.iterator');
+  var Iterators = require('./_iterators');
+  var $iterDetect = require('./_iter-detect');
+  var setSpecies = require('./_set-species');
+  var arrayFill = require('./_array-fill');
+  var arrayCopyWithin = require('./_array-copy-within');
+  var $DP = require('./_object-dp');
+  var $GOPD = require('./_object-gopd');
+  var dP = $DP.f;
+  var gOPD = $GOPD.f;
+  var RangeError = global.RangeError;
+  var TypeError = global.TypeError;
+  var Uint8Array = global.Uint8Array;
+  var ARRAY_BUFFER = 'ArrayBuffer';
+  var SHARED_BUFFER = 'Shared' + ARRAY_BUFFER;
+  var BYTES_PER_ELEMENT = 'BYTES_PER_ELEMENT';
+  var PROTOTYPE = 'prototype';
+  var ArrayProto = Array[PROTOTYPE];
+  var $ArrayBuffer = $buffer.ArrayBuffer;
+  var $DataView = $buffer.DataView;
+  var arrayForEach = createArrayMethod(0);
+  var arrayFilter = createArrayMethod(2);
+  var arraySome = createArrayMethod(3);
+  var arrayEvery = createArrayMethod(4);
+  var arrayFind = createArrayMethod(5);
+  var arrayFindIndex = createArrayMethod(6);
+  var arrayIncludes = createArrayIncludes(true);
+  var arrayIndexOf = createArrayIncludes(false);
+  var arrayValues = ArrayIterators.values;
+  var arrayKeys = ArrayIterators.keys;
+  var arrayEntries = ArrayIterators.entries;
+  var arrayLastIndexOf = ArrayProto.lastIndexOf;
+  var arrayReduce = ArrayProto.reduce;
+  var arrayReduceRight = ArrayProto.reduceRight;
+  var arrayJoin = ArrayProto.join;
+  var arraySort = ArrayProto.sort;
+  var arraySlice = ArrayProto.slice;
+  var arrayToString = ArrayProto.toString;
+  var arrayToLocaleString = ArrayProto.toLocaleString;
+  var ITERATOR = wks('iterator');
+  var TAG = wks('toStringTag');
+  var TYPED_CONSTRUCTOR = uid('typed_constructor');
+  var DEF_CONSTRUCTOR = uid('def_constructor');
+  var ALL_CONSTRUCTORS = $typed.CONSTR;
+  var TYPED_ARRAY = $typed.TYPED;
+  var VIEW = $typed.VIEW;
+  var WRONG_LENGTH = 'Wrong length!';
+
+  var $map = createArrayMethod(1, function (O, length) {
+    return allocate(speciesConstructor(O, O[DEF_CONSTRUCTOR]), length);
+  });
+
+  var LITTLE_ENDIAN = fails(function () {
+    // eslint-disable-next-line no-undef
+    return new Uint8Array(new Uint16Array([1]).buffer)[0] === 1;
+  });
+
+  var FORCED_SET = !!Uint8Array && !!Uint8Array[PROTOTYPE].set && fails(function () {
+    new Uint8Array(1).set({});
+  });
+
+  var toOffset = function (it, BYTES) {
+    var offset = toInteger(it);
+    if (offset < 0 || offset % BYTES) throw RangeError('Wrong offset!');
+    return offset;
+  };
+
+  var validate = function (it) {
+    if (isObject(it) && TYPED_ARRAY in it) return it;
+    throw TypeError(it + ' is not a typed array!');
+  };
+
+  var allocate = function (C, length) {
+    if (!(isObject(C) && TYPED_CONSTRUCTOR in C)) {
+      throw TypeError('It is not a typed array constructor!');
+    } return new C(length);
+  };
+
+  var speciesFromList = function (O, list) {
+    return fromList(speciesConstructor(O, O[DEF_CONSTRUCTOR]), list);
+  };
+
+  var fromList = function (C, list) {
+    var index = 0;
+    var length = list.length;
+    var result = allocate(C, length);
+    while (length > index) result[index] = list[index++];
+    return result;
+  };
+
+  var addGetter = function (it, key, internal) {
+    dP(it, key, { get: function () { return this._d[internal]; } });
+  };
+
+  var $from = function from(source /* , mapfn, thisArg */) {
+    var O = toObject(source);
+    var aLen = arguments.length;
+    var mapfn = aLen > 1 ? arguments[1] : undefined;
+    var mapping = mapfn !== undefined;
+    var iterFn = getIterFn(O);
+    var i, length, values, result, step, iterator;
+    if (iterFn != undefined && !isArrayIter(iterFn)) {
+      for (iterator = iterFn.call(O), values = [], i = 0; !(step = iterator.next()).done; i++) {
+        values.push(step.value);
+      } O = values;
+    }
+    if (mapping && aLen > 2) mapfn = ctx(mapfn, arguments[2], 2);
+    for (i = 0, length = toLength(O.length), result = allocate(this, length); length > i; i++) {
+      result[i] = mapping ? mapfn(O[i], i) : O[i];
+    }
+    return result;
+  };
+
+  var $of = function of(/* ...items */) {
+    var index = 0;
+    var length = arguments.length;
+    var result = allocate(this, length);
+    while (length > index) result[index] = arguments[index++];
+    return result;
+  };
+
+  // iOS Safari 6.x fails here
+  var TO_LOCALE_BUG = !!Uint8Array && fails(function () { arrayToLocaleString.call(new Uint8Array(1)); });
+
+  var $toLocaleString = function toLocaleString() {
+    return arrayToLocaleString.apply(TO_LOCALE_BUG ? arraySlice.call(validate(this)) : validate(this), arguments);
+  };
+
+  var proto = {
+    copyWithin: function copyWithin(target, start /* , end */) {
+      return arrayCopyWithin.call(validate(this), target, start, arguments.length > 2 ? arguments[2] : undefined);
+    },
+    every: function every(callbackfn /* , thisArg */) {
+      return arrayEvery(validate(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+    },
+    fill: function fill(value /* , start, end */) { // eslint-disable-line no-unused-vars
+      return arrayFill.apply(validate(this), arguments);
+    },
+    filter: function filter(callbackfn /* , thisArg */) {
+      return speciesFromList(this, arrayFilter(validate(this), callbackfn,
+        arguments.length > 1 ? arguments[1] : undefined));
+    },
+    find: function find(predicate /* , thisArg */) {
+      return arrayFind(validate(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
+    },
+    findIndex: function findIndex(predicate /* , thisArg */) {
+      return arrayFindIndex(validate(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
+    },
+    forEach: function forEach(callbackfn /* , thisArg */) {
+      arrayForEach(validate(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+    },
+    indexOf: function indexOf(searchElement /* , fromIndex */) {
+      return arrayIndexOf(validate(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
+    },
+    includes: function includes(searchElement /* , fromIndex */) {
+      return arrayIncludes(validate(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
+    },
+    join: function join(separator) { // eslint-disable-line no-unused-vars
+      return arrayJoin.apply(validate(this), arguments);
+    },
+    lastIndexOf: function lastIndexOf(searchElement /* , fromIndex */) { // eslint-disable-line no-unused-vars
+      return arrayLastIndexOf.apply(validate(this), arguments);
+    },
+    map: function map(mapfn /* , thisArg */) {
+      return $map(validate(this), mapfn, arguments.length > 1 ? arguments[1] : undefined);
+    },
+    reduce: function reduce(callbackfn /* , initialValue */) { // eslint-disable-line no-unused-vars
+      return arrayReduce.apply(validate(this), arguments);
+    },
+    reduceRight: function reduceRight(callbackfn /* , initialValue */) { // eslint-disable-line no-unused-vars
+      return arrayReduceRight.apply(validate(this), arguments);
+    },
+    reverse: function reverse() {
+      var that = this;
+      var length = validate(that).length;
+      var middle = Math.floor(length / 2);
+      var index = 0;
+      var value;
+      while (index < middle) {
+        value = that[index];
+        that[index++] = that[--length];
+        that[length] = value;
+      } return that;
+    },
+    some: function some(callbackfn /* , thisArg */) {
+      return arraySome(validate(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+    },
+    sort: function sort(comparefn) {
+      return arraySort.call(validate(this), comparefn);
+    },
+    subarray: function subarray(begin, end) {
+      var O = validate(this);
+      var length = O.length;
+      var $begin = toAbsoluteIndex(begin, length);
+      return new (speciesConstructor(O, O[DEF_CONSTRUCTOR]))(
+        O.buffer,
+        O.byteOffset + $begin * O.BYTES_PER_ELEMENT,
+        toLength((end === undefined ? length : toAbsoluteIndex(end, length)) - $begin)
+      );
+    }
+  };
+
+  var $slice = function slice(start, end) {
+    return speciesFromList(this, arraySlice.call(validate(this), start, end));
+  };
+
+  var $set = function set(arrayLike /* , offset */) {
+    validate(this);
+    var offset = toOffset(arguments[1], 1);
+    var length = this.length;
+    var src = toObject(arrayLike);
+    var len = toLength(src.length);
+    var index = 0;
+    if (len + offset > length) throw RangeError(WRONG_LENGTH);
+    while (index < len) this[offset + index] = src[index++];
+  };
+
+  var $iterators = {
+    entries: function entries() {
+      return arrayEntries.call(validate(this));
+    },
+    keys: function keys() {
+      return arrayKeys.call(validate(this));
+    },
+    values: function values() {
+      return arrayValues.call(validate(this));
+    }
+  };
+
+  var isTAIndex = function (target, key) {
+    return isObject(target)
+      && target[TYPED_ARRAY]
+      && typeof key != 'symbol'
+      && key in target
+      && String(+key) == String(key);
+  };
+  var $getDesc = function getOwnPropertyDescriptor(target, key) {
+    return isTAIndex(target, key = toPrimitive(key, true))
+      ? propertyDesc(2, target[key])
+      : gOPD(target, key);
+  };
+  var $setDesc = function defineProperty(target, key, desc) {
+    if (isTAIndex(target, key = toPrimitive(key, true))
+      && isObject(desc)
+      && has(desc, 'value')
+      && !has(desc, 'get')
+      && !has(desc, 'set')
+      // TODO: add validation descriptor w/o calling accessors
+      && !desc.configurable
+      && (!has(desc, 'writable') || desc.writable)
+      && (!has(desc, 'enumerable') || desc.enumerable)
+    ) {
+      target[key] = desc.value;
+      return target;
+    } return dP(target, key, desc);
+  };
+
+  if (!ALL_CONSTRUCTORS) {
+    $GOPD.f = $getDesc;
+    $DP.f = $setDesc;
+  }
+
+  $export($export.S + $export.F * !ALL_CONSTRUCTORS, 'Object', {
+    getOwnPropertyDescriptor: $getDesc,
+    defineProperty: $setDesc
+  });
+
+  if (fails(function () { arrayToString.call({}); })) {
+    arrayToString = arrayToLocaleString = function toString() {
+      return arrayJoin.call(this);
+    };
+  }
+
+  var $TypedArrayPrototype$ = redefineAll({}, proto);
+  redefineAll($TypedArrayPrototype$, $iterators);
+  hide($TypedArrayPrototype$, ITERATOR, $iterators.values);
+  redefineAll($TypedArrayPrototype$, {
+    slice: $slice,
+    set: $set,
+    constructor: function () { /* noop */ },
+    toString: arrayToString,
+    toLocaleString: $toLocaleString
+  });
+  addGetter($TypedArrayPrototype$, 'buffer', 'b');
+  addGetter($TypedArrayPrototype$, 'byteOffset', 'o');
+  addGetter($TypedArrayPrototype$, 'byteLength', 'l');
+  addGetter($TypedArrayPrototype$, 'length', 'e');
+  dP($TypedArrayPrototype$, TAG, {
+    get: function () { return this[TYPED_ARRAY]; }
+  });
+
+  // eslint-disable-next-line max-statements
+  module.exports = function (KEY, BYTES, wrapper, CLAMPED) {
+    CLAMPED = !!CLAMPED;
+    var NAME = KEY + (CLAMPED ? 'Clamped' : '') + 'Array';
+    var GETTER = 'get' + KEY;
+    var SETTER = 'set' + KEY;
+    var TypedArray = global[NAME];
+    var Base = TypedArray || {};
+    var TAC = TypedArray && getPrototypeOf(TypedArray);
+    var FORCED = !TypedArray || !$typed.ABV;
+    var O = {};
+    var TypedArrayPrototype = TypedArray && TypedArray[PROTOTYPE];
+    var getter = function (that, index) {
+      var data = that._d;
+      return data.v[GETTER](index * BYTES + data.o, LITTLE_ENDIAN);
+    };
+    var setter = function (that, index, value) {
+      var data = that._d;
+      if (CLAMPED) value = (value = Math.round(value)) < 0 ? 0 : value > 0xff ? 0xff : value & 0xff;
+      data.v[SETTER](index * BYTES + data.o, value, LITTLE_ENDIAN);
+    };
+    var addElement = function (that, index) {
+      dP(that, index, {
+        get: function () {
+          return getter(this, index);
+        },
+        set: function (value) {
+          return setter(this, index, value);
+        },
+        enumerable: true
+      });
+    };
+    if (FORCED) {
+      TypedArray = wrapper(function (that, data, $offset, $length) {
+        anInstance(that, TypedArray, NAME, '_d');
+        var index = 0;
+        var offset = 0;
+        var buffer, byteLength, length, klass;
+        if (!isObject(data)) {
+          length = toIndex(data);
+          byteLength = length * BYTES;
+          buffer = new $ArrayBuffer(byteLength);
+        } else if (data instanceof $ArrayBuffer || (klass = classof(data)) == ARRAY_BUFFER || klass == SHARED_BUFFER) {
+          buffer = data;
+          offset = toOffset($offset, BYTES);
+          var $len = data.byteLength;
+          if ($length === undefined) {
+            if ($len % BYTES) throw RangeError(WRONG_LENGTH);
+            byteLength = $len - offset;
+            if (byteLength < 0) throw RangeError(WRONG_LENGTH);
+          } else {
+            byteLength = toLength($length) * BYTES;
+            if (byteLength + offset > $len) throw RangeError(WRONG_LENGTH);
+          }
+          length = byteLength / BYTES;
+        } else if (TYPED_ARRAY in data) {
+          return fromList(TypedArray, data);
+        } else {
+          return $from.call(TypedArray, data);
+        }
+        hide(that, '_d', {
+          b: buffer,
+          o: offset,
+          l: byteLength,
+          e: length,
+          v: new $DataView(buffer)
+        });
+        while (index < length) addElement(that, index++);
+      });
+      TypedArrayPrototype = TypedArray[PROTOTYPE] = create($TypedArrayPrototype$);
+      hide(TypedArrayPrototype, 'constructor', TypedArray);
+    } else if (!fails(function () {
+      TypedArray(1);
+    }) || !fails(function () {
+      new TypedArray(-1); // eslint-disable-line no-new
+    }) || !$iterDetect(function (iter) {
+      new TypedArray(); // eslint-disable-line no-new
+      new TypedArray(null); // eslint-disable-line no-new
+      new TypedArray(1.5); // eslint-disable-line no-new
+      new TypedArray(iter); // eslint-disable-line no-new
+    }, true)) {
+      TypedArray = wrapper(function (that, data, $offset, $length) {
+        anInstance(that, TypedArray, NAME);
+        var klass;
+        // `ws` module bug, temporarily remove validation length for Uint8Array
+        // https://github.com/websockets/ws/pull/645
+        if (!isObject(data)) return new Base(toIndex(data));
+        if (data instanceof $ArrayBuffer || (klass = classof(data)) == ARRAY_BUFFER || klass == SHARED_BUFFER) {
+          return $length !== undefined
+            ? new Base(data, toOffset($offset, BYTES), $length)
+            : $offset !== undefined
+              ? new Base(data, toOffset($offset, BYTES))
+              : new Base(data);
+        }
+        if (TYPED_ARRAY in data) return fromList(TypedArray, data);
+        return $from.call(TypedArray, data);
+      });
+      arrayForEach(TAC !== Function.prototype ? gOPN(Base).concat(gOPN(TAC)) : gOPN(Base), function (key) {
+        if (!(key in TypedArray)) hide(TypedArray, key, Base[key]);
+      });
+      TypedArray[PROTOTYPE] = TypedArrayPrototype;
+      if (!LIBRARY) TypedArrayPrototype.constructor = TypedArray;
+    }
+    var $nativeIterator = TypedArrayPrototype[ITERATOR];
+    var CORRECT_ITER_NAME = !!$nativeIterator
+      && ($nativeIterator.name == 'values' || $nativeIterator.name == undefined);
+    var $iterator = $iterators.values;
+    hide(TypedArray, TYPED_CONSTRUCTOR, true);
+    hide(TypedArrayPrototype, TYPED_ARRAY, NAME);
+    hide(TypedArrayPrototype, VIEW, true);
+    hide(TypedArrayPrototype, DEF_CONSTRUCTOR, TypedArray);
+
+    if (CLAMPED ? new TypedArray(1)[TAG] != NAME : !(TAG in TypedArrayPrototype)) {
+      dP(TypedArrayPrototype, TAG, {
+        get: function () { return NAME; }
+      });
+    }
+
+    O[NAME] = TypedArray;
+
+    $export($export.G + $export.W + $export.F * (TypedArray != Base), O);
+
+    $export($export.S, NAME, {
+      BYTES_PER_ELEMENT: BYTES
+    });
+
+    $export($export.S + $export.F * fails(function () { Base.of.call(TypedArray, 1); }), NAME, {
+      from: $from,
+      of: $of
+    });
+
+    if (!(BYTES_PER_ELEMENT in TypedArrayPrototype)) hide(TypedArrayPrototype, BYTES_PER_ELEMENT, BYTES);
+
+    $export($export.P, NAME, proto);
+
+    setSpecies(NAME);
+
+    $export($export.P + $export.F * FORCED_SET, NAME, { set: $set });
+
+    $export($export.P + $export.F * !CORRECT_ITER_NAME, NAME, $iterators);
+
+    if (!LIBRARY && TypedArrayPrototype.toString != arrayToString) TypedArrayPrototype.toString = arrayToString;
+
+    $export($export.P + $export.F * fails(function () {
+      new TypedArray(1).slice();
+    }), NAME, { slice: $slice });
+
+    $export($export.P + $export.F * (fails(function () {
+      return [1, 2].toLocaleString() != new TypedArray([1, 2]).toLocaleString();
+    }) || !fails(function () {
+      TypedArrayPrototype.toLocaleString.call([1, 2]);
+    })), NAME, { toLocaleString: $toLocaleString });
+
+    Iterators[NAME] = CORRECT_ITER_NAME ? $nativeIterator : $iterator;
+    if (!LIBRARY && !CORRECT_ITER_NAME) hide(TypedArrayPrototype, ITERATOR, $iterator);
+  };
+} else module.exports = function () { /* empty */ };
+
+},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_library":"../node_modules/core-js/modules/_library.js","./_global":"../node_modules/core-js/modules/_global.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_export":"../node_modules/core-js/modules/_export.js","./_typed":"../node_modules/core-js/modules/_typed.js","./_typed-buffer":"../node_modules/core-js/modules/_typed-buffer.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_to-index":"../node_modules/core-js/modules/_to-index.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_has":"../node_modules/core-js/modules/_has.js","./_classof":"../node_modules/core-js/modules/_classof.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_is-array-iter":"../node_modules/core-js/modules/_is-array-iter.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./core.get-iterator-method":"../node_modules/core-js/modules/core.get-iterator-method.js","./_uid":"../node_modules/core-js/modules/_uid.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_array-includes":"../node_modules/core-js/modules/_array-includes.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./es6.array.iterator":"../node_modules/core-js/modules/es6.array.iterator.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_iter-detect":"../node_modules/core-js/modules/_iter-detect.js","./_set-species":"../node_modules/core-js/modules/_set-species.js","./_array-fill":"../node_modules/core-js/modules/_array-fill.js","./_array-copy-within":"../node_modules/core-js/modules/_array-copy-within.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js"}],"../node_modules/core-js/modules/es6.typed.int8-array.js":[function(require,module,exports) {
+require('./_typed-array')('Int8', 1, function (init) {
+  return function Int8Array(data, byteOffset, length) {
+    return init(this, data, byteOffset, length);
+  };
+});
+
+},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.uint8-array.js":[function(require,module,exports) {
+require('./_typed-array')('Uint8', 1, function (init) {
+  return function Uint8Array(data, byteOffset, length) {
+    return init(this, data, byteOffset, length);
+  };
+});
+
+},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.uint8-clamped-array.js":[function(require,module,exports) {
+require('./_typed-array')('Uint8', 1, function (init) {
+  return function Uint8ClampedArray(data, byteOffset, length) {
+    return init(this, data, byteOffset, length);
+  };
+}, true);
+
+},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.int16-array.js":[function(require,module,exports) {
+require('./_typed-array')('Int16', 2, function (init) {
+  return function Int16Array(data, byteOffset, length) {
+    return init(this, data, byteOffset, length);
+  };
+});
+
+},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.uint16-array.js":[function(require,module,exports) {
+require('./_typed-array')('Uint16', 2, function (init) {
+  return function Uint16Array(data, byteOffset, length) {
+    return init(this, data, byteOffset, length);
+  };
+});
+
+},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.int32-array.js":[function(require,module,exports) {
+require('./_typed-array')('Int32', 4, function (init) {
+  return function Int32Array(data, byteOffset, length) {
+    return init(this, data, byteOffset, length);
+  };
+});
+
+},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.uint32-array.js":[function(require,module,exports) {
+require('./_typed-array')('Uint32', 4, function (init) {
+  return function Uint32Array(data, byteOffset, length) {
+    return init(this, data, byteOffset, length);
+  };
+});
+
+},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.float32-array.js":[function(require,module,exports) {
+require('./_typed-array')('Float32', 4, function (init) {
+  return function Float32Array(data, byteOffset, length) {
+    return init(this, data, byteOffset, length);
+  };
+});
+
+},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.float64-array.js":[function(require,module,exports) {
+require('./_typed-array')('Float64', 8, function (init) {
+  return function Float64Array(data, byteOffset, length) {
+    return init(this, data, byteOffset, length);
+  };
+});
+
+},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/_collection-weak.js":[function(require,module,exports) {
+'use strict';
+var redefineAll = require('./_redefine-all');
+var getWeak = require('./_meta').getWeak;
+var anObject = require('./_an-object');
+var isObject = require('./_is-object');
+var anInstance = require('./_an-instance');
+var forOf = require('./_for-of');
+var createArrayMethod = require('./_array-methods');
+var $has = require('./_has');
+var validate = require('./_validate-collection');
+var arrayFind = createArrayMethod(5);
+var arrayFindIndex = createArrayMethod(6);
+var id = 0;
+
+// fallback for uncaught frozen keys
+var uncaughtFrozenStore = function (that) {
+  return that._l || (that._l = new UncaughtFrozenStore());
+};
+var UncaughtFrozenStore = function () {
+  this.a = [];
+};
+var findUncaughtFrozen = function (store, key) {
+  return arrayFind(store.a, function (it) {
+    return it[0] === key;
+  });
+};
+UncaughtFrozenStore.prototype = {
+  get: function (key) {
+    var entry = findUncaughtFrozen(this, key);
+    if (entry) return entry[1];
+  },
+  has: function (key) {
+    return !!findUncaughtFrozen(this, key);
+  },
+  set: function (key, value) {
+    var entry = findUncaughtFrozen(this, key);
+    if (entry) entry[1] = value;
+    else this.a.push([key, value]);
+  },
+  'delete': function (key) {
+    var index = arrayFindIndex(this.a, function (it) {
+      return it[0] === key;
+    });
+    if (~index) this.a.splice(index, 1);
+    return !!~index;
+  }
+};
+
+module.exports = {
+  getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {
+    var C = wrapper(function (that, iterable) {
+      anInstance(that, C, NAME, '_i');
+      that._t = NAME;      // collection type
+      that._i = id++;      // collection id
+      that._l = undefined; // leak store for uncaught frozen objects
+      if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
+    });
+    redefineAll(C.prototype, {
+      // 23.3.3.2 WeakMap.prototype.delete(key)
+      // 23.4.3.3 WeakSet.prototype.delete(value)
+      'delete': function (key) {
+        if (!isObject(key)) return false;
+        var data = getWeak(key);
+        if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);
+        return data && $has(data, this._i) && delete data[this._i];
+      },
+      // 23.3.3.4 WeakMap.prototype.has(key)
+      // 23.4.3.4 WeakSet.prototype.has(value)
+      has: function has(key) {
+        if (!isObject(key)) return false;
+        var data = getWeak(key);
+        if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);
+        return data && $has(data, this._i);
+      }
+    });
+    return C;
+  },
+  def: function (that, key, value) {
+    var data = getWeak(anObject(key), true);
+    if (data === true) uncaughtFrozenStore(that).set(key, value);
+    else data[that._i] = value;
+    return that;
+  },
+  ufstore: uncaughtFrozenStore
+};
+
+},{"./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_for-of":"../node_modules/core-js/modules/_for-of.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_has":"../node_modules/core-js/modules/_has.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js"}],"../node_modules/core-js/modules/es6.weak-map.js":[function(require,module,exports) {
+
+'use strict';
+var global = require('./_global');
+var each = require('./_array-methods')(0);
+var redefine = require('./_redefine');
+var meta = require('./_meta');
+var assign = require('./_object-assign');
+var weak = require('./_collection-weak');
+var isObject = require('./_is-object');
+var validate = require('./_validate-collection');
+var NATIVE_WEAK_MAP = require('./_validate-collection');
+var IS_IE11 = !global.ActiveXObject && 'ActiveXObject' in global;
+var WEAK_MAP = 'WeakMap';
+var getWeak = meta.getWeak;
+var isExtensible = Object.isExtensible;
+var uncaughtFrozenStore = weak.ufstore;
+var InternalMap;
+
+var wrapper = function (get) {
+  return function WeakMap() {
+    return get(this, arguments.length > 0 ? arguments[0] : undefined);
+  };
+};
+
+var methods = {
+  // 23.3.3.3 WeakMap.prototype.get(key)
+  get: function get(key) {
+    if (isObject(key)) {
+      var data = getWeak(key);
+      if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);
+      return data ? data[this._i] : undefined;
+    }
+  },
+  // 23.3.3.5 WeakMap.prototype.set(key, value)
+  set: function set(key, value) {
+    return weak.def(validate(this, WEAK_MAP), key, value);
+  }
+};
+
+// 23.3 WeakMap Objects
+var $WeakMap = module.exports = require('./_collection')(WEAK_MAP, wrapper, methods, weak, true, true);
+
+// IE11 WeakMap frozen keys fix
+if (NATIVE_WEAK_MAP && IS_IE11) {
+  InternalMap = weak.getConstructor(wrapper, WEAK_MAP);
+  assign(InternalMap.prototype, methods);
+  meta.NEED = true;
+  each(['delete', 'has', 'get', 'set'], function (key) {
+    var proto = $WeakMap.prototype;
+    var method = proto[key];
+    redefine(proto, key, function (a, b) {
+      // store frozen objects on internal weakmap shim
+      if (isObject(a) && !isExtensible(a)) {
+        if (!this._f) this._f = new InternalMap();
+        var result = this._f[key](a, b);
+        return key == 'set' ? this : result;
+      // store all the rest on native weakmap
+      } return method.call(this, a, b);
+    });
+  });
+}
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_object-assign":"../node_modules/core-js/modules/_object-assign.js","./_collection-weak":"../node_modules/core-js/modules/_collection-weak.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js","./_collection":"../node_modules/core-js/modules/_collection.js"}],"../node_modules/core-js/modules/es6.weak-set.js":[function(require,module,exports) {
+'use strict';
+var weak = require('./_collection-weak');
+var validate = require('./_validate-collection');
+var WEAK_SET = 'WeakSet';
+
+// 23.4 WeakSet Objects
+require('./_collection')(WEAK_SET, function (get) {
+  return function WeakSet() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
+}, {
+  // 23.4.3.1 WeakSet.prototype.add(value)
+  add: function add(value) {
+    return weak.def(validate(this, WEAK_SET), value, true);
+  }
+}, weak, false, true);
+
+},{"./_collection-weak":"../node_modules/core-js/modules/_collection-weak.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js","./_collection":"../node_modules/core-js/modules/_collection.js"}],"../node_modules/core-js/modules/web.timers.js":[function(require,module,exports) {
+
+// ie9- setTimeout & setInterval additional parameters fix
+var global = require('./_global');
+var $export = require('./_export');
+var userAgent = require('./_user-agent');
+var slice = [].slice;
+var MSIE = /MSIE .\./.test(userAgent); // <- dirty ie9- check
+var wrap = function (set) {
+  return function (fn, time /* , ...args */) {
+    var boundArgs = arguments.length > 2;
+    var args = boundArgs ? slice.call(arguments, 2) : false;
+    return set(boundArgs ? function () {
+      // eslint-disable-next-line no-new-func
+      (typeof fn == 'function' ? fn : Function(fn)).apply(this, args);
+    } : fn, time);
+  };
+};
+$export($export.G + $export.B + $export.F * MSIE, {
+  setTimeout: wrap(global.setTimeout),
+  setInterval: wrap(global.setInterval)
+});
+
+},{"./_global":"../node_modules/core-js/modules/_global.js","./_export":"../node_modules/core-js/modules/_export.js","./_user-agent":"../node_modules/core-js/modules/_user-agent.js"}],"../node_modules/core-js/modules/web.immediate.js":[function(require,module,exports) {
+var $export = require('./_export');
+var $task = require('./_task');
+$export($export.G + $export.B, {
+  setImmediate: $task.set,
+  clearImmediate: $task.clear
+});
+
+},{"./_export":"../node_modules/core-js/modules/_export.js","./_task":"../node_modules/core-js/modules/_task.js"}],"../node_modules/core-js/modules/web.dom.iterable.js":[function(require,module,exports) {
+
+var $iterators = require('./es6.array.iterator');
+var getKeys = require('./_object-keys');
+var redefine = require('./_redefine');
+var global = require('./_global');
+var hide = require('./_hide');
+var Iterators = require('./_iterators');
+var wks = require('./_wks');
+var ITERATOR = wks('iterator');
+var TO_STRING_TAG = wks('toStringTag');
+var ArrayValues = Iterators.Array;
+
+var DOMIterables = {
+  CSSRuleList: true, // TODO: Not spec compliant, should be false.
+  CSSStyleDeclaration: false,
+  CSSValueList: false,
+  ClientRectList: false,
+  DOMRectList: false,
+  DOMStringList: false,
+  DOMTokenList: true,
+  DataTransferItemList: false,
+  FileList: false,
+  HTMLAllCollection: false,
+  HTMLCollection: false,
+  HTMLFormElement: false,
+  HTMLSelectElement: false,
+  MediaList: true, // TODO: Not spec compliant, should be false.
+  MimeTypeArray: false,
+  NamedNodeMap: false,
+  NodeList: true,
+  PaintRequestList: false,
+  Plugin: false,
+  PluginArray: false,
+  SVGLengthList: false,
+  SVGNumberList: false,
+  SVGPathSegList: false,
+  SVGPointList: false,
+  SVGStringList: false,
+  SVGTransformList: false,
+  SourceBufferList: false,
+  StyleSheetList: true, // TODO: Not spec compliant, should be false.
+  TextTrackCueList: false,
+  TextTrackList: false,
+  TouchList: false
+};
+
+for (var collections = getKeys(DOMIterables), i = 0; i < collections.length; i++) {
+  var NAME = collections[i];
+  var explicit = DOMIterables[NAME];
+  var Collection = global[NAME];
+  var proto = Collection && Collection.prototype;
+  var key;
+  if (proto) {
+    if (!proto[ITERATOR]) hide(proto, ITERATOR, ArrayValues);
+    if (!proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
+    Iterators[NAME] = ArrayValues;
+    if (explicit) for (key in $iterators) if (!proto[key]) redefine(proto, key, $iterators[key], true);
+  }
+}
+
+},{"./es6.array.iterator":"../node_modules/core-js/modules/es6.array.iterator.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_global":"../node_modules/core-js/modules/_global.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/regenerator-runtime/runtime.js":[function(require,module,exports) {
+/**
+ * Copyright (c) 2014-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+var runtime = (function (exports) {
+  "use strict";
+
+  var Op = Object.prototype;
+  var hasOwn = Op.hasOwnProperty;
+  var undefined; // More compressible than void 0.
+  var $Symbol = typeof Symbol === "function" ? Symbol : {};
+  var iteratorSymbol = $Symbol.iterator || "@@iterator";
+  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
+  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";
+
+  function wrap(innerFn, outerFn, self, tryLocsList) {
+    // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
+    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
+    var generator = Object.create(protoGenerator.prototype);
+    var context = new Context(tryLocsList || []);
+
+    // The ._invoke method unifies the implementations of the .next,
+    // .throw, and .return methods.
+    generator._invoke = makeInvokeMethod(innerFn, self, context);
+
+    return generator;
+  }
+  exports.wrap = wrap;
+
+  // Try/catch helper to minimize deoptimizations. Returns a completion
+  // record like context.tryEntries[i].completion. This interface could
+  // have been (and was previously) designed to take a closure to be
+  // invoked without arguments, but in all the cases we care about we
+  // already have an existing method we want to call, so there's no need
+  // to create a new function object. We can even get away with assuming
+  // the method takes exactly one argument, since that happens to be true
+  // in every case, so we don't have to touch the arguments object. The
+  // only additional allocation required is the completion record, which
+  // has a stable shape and so hopefully should be cheap to allocate.
+  function tryCatch(fn, obj, arg) {
+    try {
+      return { type: "normal", arg: fn.call(obj, arg) };
+    } catch (err) {
+      return { type: "throw", arg: err };
+    }
+  }
+
+  var GenStateSuspendedStart = "suspendedStart";
+  var GenStateSuspendedYield = "suspendedYield";
+  var GenStateExecuting = "executing";
+  var GenStateCompleted = "completed";
+
+  // Returning this object from the innerFn has the same effect as
+  // breaking out of the dispatch switch statement.
+  var ContinueSentinel = {};
+
+  // Dummy constructor functions that we use as the .constructor and
+  // .constructor.prototype properties for functions that return Generator
+  // objects. For full spec compliance, you may wish to configure your
+  // minifier not to mangle the names of these two functions.
+  function Generator() {}
+  function GeneratorFunction() {}
+  function GeneratorFunctionPrototype() {}
+
+  // This is a polyfill for %IteratorPrototype% for environments that
+  // don't natively support it.
+  var IteratorPrototype = {};
+  IteratorPrototype[iteratorSymbol] = function () {
+    return this;
+  };
+
+  var getProto = Object.getPrototypeOf;
+  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
+  if (NativeIteratorPrototype &&
+      NativeIteratorPrototype !== Op &&
+      hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
+    // This environment has a native %IteratorPrototype%; use it instead
+    // of the polyfill.
+    IteratorPrototype = NativeIteratorPrototype;
+  }
+
+  var Gp = GeneratorFunctionPrototype.prototype =
+    Generator.prototype = Object.create(IteratorPrototype);
+  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
+  GeneratorFunctionPrototype.constructor = GeneratorFunction;
+  GeneratorFunctionPrototype[toStringTagSymbol] =
+    GeneratorFunction.displayName = "GeneratorFunction";
+
+  // Helper for defining the .next, .throw, and .return methods of the
+  // Iterator interface in terms of a single ._invoke method.
+  function defineIteratorMethods(prototype) {
+    ["next", "throw", "return"].forEach(function(method) {
+      prototype[method] = function(arg) {
+        return this._invoke(method, arg);
+      };
+    });
+  }
+
+  exports.isGeneratorFunction = function(genFun) {
+    var ctor = typeof genFun === "function" && genFun.constructor;
+    return ctor
+      ? ctor === GeneratorFunction ||
+        // For the native GeneratorFunction constructor, the best we can
+        // do is to check its .name property.
+        (ctor.displayName || ctor.name) === "GeneratorFunction"
+      : false;
+  };
+
+  exports.mark = function(genFun) {
+    if (Object.setPrototypeOf) {
+      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
+    } else {
+      genFun.__proto__ = GeneratorFunctionPrototype;
+      if (!(toStringTagSymbol in genFun)) {
+        genFun[toStringTagSymbol] = "GeneratorFunction";
+      }
+    }
+    genFun.prototype = Object.create(Gp);
+    return genFun;
+  };
+
+  // Within the body of any async function, `await x` is transformed to
+  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
+  // `hasOwn.call(value, "__await")` to determine if the yielded value is
+  // meant to be awaited.
+  exports.awrap = function(arg) {
+    return { __await: arg };
+  };
+
+  function AsyncIterator(generator) {
+    function invoke(method, arg, resolve, reject) {
+      var record = tryCatch(generator[method], generator, arg);
+      if (record.type === "throw") {
+        reject(record.arg);
+      } else {
+        var result = record.arg;
+        var value = result.value;
+        if (value &&
+            typeof value === "object" &&
+            hasOwn.call(value, "__await")) {
+          return Promise.resolve(value.__await).then(function(value) {
+            invoke("next", value, resolve, reject);
+          }, function(err) {
+            invoke("throw", err, resolve, reject);
+          });
+        }
+
+        return Promise.resolve(value).then(function(unwrapped) {
+          // When a yielded Promise is resolved, its final value becomes
+          // the .value of the Promise<{value,done}> result for the
+          // current iteration.
+          result.value = unwrapped;
+          resolve(result);
+        }, function(error) {
+          // If a rejected Promise was yielded, throw the rejection back
+          // into the async generator function so it can be handled there.
+          return invoke("throw", error, resolve, reject);
+        });
+      }
+    }
+
+    var previousPromise;
+
+    function enqueue(method, arg) {
+      function callInvokeWithMethodAndArg() {
+        return new Promise(function(resolve, reject) {
+          invoke(method, arg, resolve, reject);
+        });
+      }
+
+      return previousPromise =
+        // If enqueue has been called before, then we want to wait until
+        // all previous Promises have been resolved before calling invoke,
+        // so that results are always delivered in the correct order. If
+        // enqueue has not been called before, then it is important to
+        // call invoke immediately, without waiting on a callback to fire,
+        // so that the async generator function has the opportunity to do
+        // any necessary setup in a predictable way. This predictability
+        // is why the Promise constructor synchronously invokes its
+        // executor callback, and why async functions synchronously
+        // execute code before the first await. Since we implement simple
+        // async functions in terms of async generators, it is especially
+        // important to get this right, even though it requires care.
+        previousPromise ? previousPromise.then(
+          callInvokeWithMethodAndArg,
+          // Avoid propagating failures to Promises returned by later
+          // invocations of the iterator.
+          callInvokeWithMethodAndArg
+        ) : callInvokeWithMethodAndArg();
+    }
+
+    // Define the unified helper method that is used to implement .next,
+    // .throw, and .return (see defineIteratorMethods).
+    this._invoke = enqueue;
+  }
+
+  defineIteratorMethods(AsyncIterator.prototype);
+  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
+    return this;
+  };
+  exports.AsyncIterator = AsyncIterator;
+
+  // Note that simple async functions are implemented on top of
+  // AsyncIterator objects; they just return a Promise for the value of
+  // the final result produced by the iterator.
+  exports.async = function(innerFn, outerFn, self, tryLocsList) {
+    var iter = new AsyncIterator(
+      wrap(innerFn, outerFn, self, tryLocsList)
+    );
+
+    return exports.isGeneratorFunction(outerFn)
+      ? iter // If outerFn is a generator, return the full iterator.
+      : iter.next().then(function(result) {
+          return result.done ? result.value : iter.next();
+        });
+  };
+
+  function makeInvokeMethod(innerFn, self, context) {
+    var state = GenStateSuspendedStart;
+
+    return function invoke(method, arg) {
+      if (state === GenStateExecuting) {
+        throw new Error("Generator is already running");
+      }
+
+      if (state === GenStateCompleted) {
+        if (method === "throw") {
+          throw arg;
+        }
+
+        // Be forgiving, per 25.3.3.3.3 of the spec:
+        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
+        return doneResult();
+      }
+
+      context.method = method;
+      context.arg = arg;
+
+      while (true) {
+        var delegate = context.delegate;
+        if (delegate) {
+          var delegateResult = maybeInvokeDelegate(delegate, context);
+          if (delegateResult) {
+            if (delegateResult === ContinueSentinel) continue;
+            return delegateResult;
+          }
+        }
+
+        if (context.method === "next") {
+          // Setting context._sent for legacy support of Babel's
+          // function.sent implementation.
+          context.sent = context._sent = context.arg;
+
+        } else if (context.method === "throw") {
+          if (state === GenStateSuspendedStart) {
+            state = GenStateCompleted;
+            throw context.arg;
+          }
+
+          context.dispatchException(context.arg);
+
+        } else if (context.method === "return") {
+          context.abrupt("return", context.arg);
+        }
+
+        state = GenStateExecuting;
+
+        var record = tryCatch(innerFn, self, context);
+        if (record.type === "normal") {
+          // If an exception is thrown from innerFn, we leave state ===
+          // GenStateExecuting and loop back for another invocation.
+          state = context.done
+            ? GenStateCompleted
+            : GenStateSuspendedYield;
+
+          if (record.arg === ContinueSentinel) {
+            continue;
+          }
+
+          return {
+            value: record.arg,
+            done: context.done
+          };
+
+        } else if (record.type === "throw") {
+          state = GenStateCompleted;
+          // Dispatch the exception by looping back around to the
+          // context.dispatchException(context.arg) call above.
+          context.method = "throw";
+          context.arg = record.arg;
+        }
+      }
+    };
+  }
+
+  // Call delegate.iterator[context.method](context.arg) and handle the
+  // result, either by returning a { value, done } result from the
+  // delegate iterator, or by modifying context.method and context.arg,
+  // setting context.delegate to null, and returning the ContinueSentinel.
+  function maybeInvokeDelegate(delegate, context) {
+    var method = delegate.iterator[context.method];
+    if (method === undefined) {
+      // A .throw or .return when the delegate iterator has no .throw
+      // method always terminates the yield* loop.
+      context.delegate = null;
+
+      if (context.method === "throw") {
+        // Note: ["return"] must be used for ES3 parsing compatibility.
+        if (delegate.iterator["return"]) {
+          // If the delegate iterator has a return method, give it a
+          // chance to clean up.
+          context.method = "return";
+          context.arg = undefined;
+          maybeInvokeDelegate(delegate, context);
+
+          if (context.method === "throw") {
+            // If maybeInvokeDelegate(context) changed context.method from
+            // "return" to "throw", let that override the TypeError below.
+            return ContinueSentinel;
+          }
+        }
+
+        context.method = "throw";
+        context.arg = new TypeError(
+          "The iterator does not provide a 'throw' method");
+      }
+
+      return ContinueSentinel;
+    }
+
+    var record = tryCatch(method, delegate.iterator, context.arg);
+
+    if (record.type === "throw") {
+      context.method = "throw";
+      context.arg = record.arg;
+      context.delegate = null;
+      return ContinueSentinel;
+    }
+
+    var info = record.arg;
+
+    if (! info) {
+      context.method = "throw";
+      context.arg = new TypeError("iterator result is not an object");
+      context.delegate = null;
+      return ContinueSentinel;
+    }
+
+    if (info.done) {
+      // Assign the result of the finished delegate to the temporary
+      // variable specified by delegate.resultName (see delegateYield).
+      context[delegate.resultName] = info.value;
+
+      // Resume execution at the desired location (see delegateYield).
+      context.next = delegate.nextLoc;
+
+      // If context.method was "throw" but the delegate handled the
+      // exception, let the outer generator proceed normally. If
+      // context.method was "next", forget context.arg since it has been
+      // "consumed" by the delegate iterator. If context.method was
+      // "return", allow the original .return call to continue in the
+      // outer generator.
+      if (context.method !== "return") {
+        context.method = "next";
+        context.arg = undefined;
+      }
+
+    } else {
+      // Re-yield the result returned by the delegate method.
+      return info;
+    }
+
+    // The delegate iterator is finished, so forget it and continue with
+    // the outer generator.
+    context.delegate = null;
+    return ContinueSentinel;
+  }
+
+  // Define Generator.prototype.{next,throw,return} in terms of the
+  // unified ._invoke helper method.
+  defineIteratorMethods(Gp);
+
+  Gp[toStringTagSymbol] = "Generator";
+
+  // A Generator should always return itself as the iterator object when the
+  // @@iterator function is called on it. Some browsers' implementations of the
+  // iterator prototype chain incorrectly implement this, causing the Generator
+  // object to not be returned from this call. This ensures that doesn't happen.
+  // See https://github.com/facebook/regenerator/issues/274 for more details.
+  Gp[iteratorSymbol] = function() {
+    return this;
+  };
+
+  Gp.toString = function() {
+    return "[object Generator]";
+  };
+
+  function pushTryEntry(locs) {
+    var entry = { tryLoc: locs[0] };
+
+    if (1 in locs) {
+      entry.catchLoc = locs[1];
+    }
+
+    if (2 in locs) {
+      entry.finallyLoc = locs[2];
+      entry.afterLoc = locs[3];
+    }
+
+    this.tryEntries.push(entry);
+  }
+
+  function resetTryEntry(entry) {
+    var record = entry.completion || {};
+    record.type = "normal";
+    delete record.arg;
+    entry.completion = record;
+  }
+
+  function Context(tryLocsList) {
+    // The root entry object (effectively a try statement without a catch
+    // or a finally block) gives us a place to store values thrown from
+    // locations where there is no enclosing try statement.
+    this.tryEntries = [{ tryLoc: "root" }];
+    tryLocsList.forEach(pushTryEntry, this);
+    this.reset(true);
+  }
+
+  exports.keys = function(object) {
+    var keys = [];
+    for (var key in object) {
+      keys.push(key);
+    }
+    keys.reverse();
+
+    // Rather than returning an object with a next method, we keep
+    // things simple and return the next function itself.
+    return function next() {
+      while (keys.length) {
+        var key = keys.pop();
+        if (key in object) {
+          next.value = key;
+          next.done = false;
+          return next;
+        }
+      }
+
+      // To avoid creating an additional object, we just hang the .value
+      // and .done properties off the next function object itself. This
+      // also ensures that the minifier will not anonymize the function.
+      next.done = true;
+      return next;
+    };
+  };
+
+  function values(iterable) {
+    if (iterable) {
+      var iteratorMethod = iterable[iteratorSymbol];
+      if (iteratorMethod) {
+        return iteratorMethod.call(iterable);
+      }
+
+      if (typeof iterable.next === "function") {
+        return iterable;
+      }
+
+      if (!isNaN(iterable.length)) {
+        var i = -1, next = function next() {
+          while (++i < iterable.length) {
+            if (hasOwn.call(iterable, i)) {
+              next.value = iterable[i];
+              next.done = false;
+              return next;
+            }
+          }
+
+          next.value = undefined;
+          next.done = true;
+
+          return next;
+        };
+
+        return next.next = next;
+      }
+    }
+
+    // Return an iterator with no values.
+    return { next: doneResult };
+  }
+  exports.values = values;
+
+  function doneResult() {
+    return { value: undefined, done: true };
+  }
+
+  Context.prototype = {
+    constructor: Context,
+
+    reset: function(skipTempReset) {
+      this.prev = 0;
+      this.next = 0;
+      // Resetting context._sent for legacy support of Babel's
+      // function.sent implementation.
+      this.sent = this._sent = undefined;
+      this.done = false;
+      this.delegate = null;
+
+      this.method = "next";
+      this.arg = undefined;
+
+      this.tryEntries.forEach(resetTryEntry);
+
+      if (!skipTempReset) {
+        for (var name in this) {
+          // Not sure about the optimal order of these conditions:
+          if (name.charAt(0) === "t" &&
+              hasOwn.call(this, name) &&
+              !isNaN(+name.slice(1))) {
+            this[name] = undefined;
+          }
+        }
+      }
+    },
+
+    stop: function() {
+      this.done = true;
+
+      var rootEntry = this.tryEntries[0];
+      var rootRecord = rootEntry.completion;
+      if (rootRecord.type === "throw") {
+        throw rootRecord.arg;
+      }
+
+      return this.rval;
+    },
+
+    dispatchException: function(exception) {
+      if (this.done) {
+        throw exception;
+      }
+
+      var context = this;
+      function handle(loc, caught) {
+        record.type = "throw";
+        record.arg = exception;
+        context.next = loc;
+
+        if (caught) {
+          // If the dispatched exception was caught by a catch block,
+          // then let that catch block handle the exception normally.
+          context.method = "next";
+          context.arg = undefined;
+        }
+
+        return !! caught;
+      }
+
+      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+        var entry = this.tryEntries[i];
+        var record = entry.completion;
+
+        if (entry.tryLoc === "root") {
+          // Exception thrown outside of any try block that could handle
+          // it, so set the completion value of the entire function to
+          // throw the exception.
+          return handle("end");
+        }
+
+        if (entry.tryLoc <= this.prev) {
+          var hasCatch = hasOwn.call(entry, "catchLoc");
+          var hasFinally = hasOwn.call(entry, "finallyLoc");
+
+          if (hasCatch && hasFinally) {
+            if (this.prev < entry.catchLoc) {
+              return handle(entry.catchLoc, true);
+            } else if (this.prev < entry.finallyLoc) {
+              return handle(entry.finallyLoc);
+            }
+
+          } else if (hasCatch) {
+            if (this.prev < entry.catchLoc) {
+              return handle(entry.catchLoc, true);
+            }
+
+          } else if (hasFinally) {
+            if (this.prev < entry.finallyLoc) {
+              return handle(entry.finallyLoc);
+            }
+
+          } else {
+            throw new Error("try statement without catch or finally");
+          }
+        }
+      }
+    },
+
+    abrupt: function(type, arg) {
+      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+        var entry = this.tryEntries[i];
+        if (entry.tryLoc <= this.prev &&
+            hasOwn.call(entry, "finallyLoc") &&
+            this.prev < entry.finallyLoc) {
+          var finallyEntry = entry;
+          break;
+        }
+      }
+
+      if (finallyEntry &&
+          (type === "break" ||
+           type === "continue") &&
+          finallyEntry.tryLoc <= arg &&
+          arg <= finallyEntry.finallyLoc) {
+        // Ignore the finally entry if control is not jumping to a
+        // location outside the try/catch block.
+        finallyEntry = null;
+      }
+
+      var record = finallyEntry ? finallyEntry.completion : {};
+      record.type = type;
+      record.arg = arg;
+
+      if (finallyEntry) {
+        this.method = "next";
+        this.next = finallyEntry.finallyLoc;
+        return ContinueSentinel;
+      }
+
+      return this.complete(record);
+    },
+
+    complete: function(record, afterLoc) {
+      if (record.type === "throw") {
+        throw record.arg;
+      }
+
+      if (record.type === "break" ||
+          record.type === "continue") {
+        this.next = record.arg;
+      } else if (record.type === "return") {
+        this.rval = this.arg = record.arg;
+        this.method = "return";
+        this.next = "end";
+      } else if (record.type === "normal" && afterLoc) {
+        this.next = afterLoc;
+      }
+
+      return ContinueSentinel;
+    },
+
+    finish: function(finallyLoc) {
+      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+        var entry = this.tryEntries[i];
+        if (entry.finallyLoc === finallyLoc) {
+          this.complete(entry.completion, entry.afterLoc);
+          resetTryEntry(entry);
+          return ContinueSentinel;
+        }
+      }
+    },
+
+    "catch": function(tryLoc) {
+      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
+        var entry = this.tryEntries[i];
+        if (entry.tryLoc === tryLoc) {
+          var record = entry.completion;
+          if (record.type === "throw") {
+            var thrown = record.arg;
+            resetTryEntry(entry);
+          }
+          return thrown;
+        }
+      }
+
+      // The context.catch method must only be called with a location
+      // argument that corresponds to a known catch block.
+      throw new Error("illegal catch attempt");
+    },
+
+    delegateYield: function(iterable, resultName, nextLoc) {
+      this.delegate = {
+        iterator: values(iterable),
+        resultName: resultName,
+        nextLoc: nextLoc
+      };
+
+      if (this.method === "next") {
+        // Deliberately forget the last sent value so that we don't
+        // accidentally pass it on to the delegate.
+        this.arg = undefined;
+      }
+
+      return ContinueSentinel;
+    }
+  };
+
+  // Regardless of whether this script is executing as a CommonJS module
+  // or not, return the runtime object so that we can declare the variable
+  // regeneratorRuntime in the outer scope, which allows this module to be
+  // injected easily by `bin/regenerator --include-runtime script.js`.
+  return exports;
+
+}(
+  // If this script is executing as a CommonJS module, use module.exports
+  // as the regeneratorRuntime namespace. Otherwise create a new empty
+  // object. Either way, the resulting object will be used to initialize
+  // the regeneratorRuntime variable at the top of this file.
+  typeof module === "object" ? module.exports : {}
+));
+
+try {
+  regeneratorRuntime = runtime;
+} catch (accidentalStrictMode) {
+  // This module should not be running in strict mode, so the above
+  // assignment should always work unless something is misconfigured. Just
+  // in case runtime.js accidentally runs in strict mode, we can escape
+  // strict mode using a global Function call. This could conceivably fail
+  // if a Content Security Policy forbids using Function, but in that case
+  // the proper solution is to fix the accidental strict mode problem. If
+  // you've misconfigured your bundler to force strict mode and applied a
+  // CSP to forbid Function, and you're not willing to fix either of those
+  // problems, please detail your unique predicament in a GitHub issue.
+  Function("r", "regeneratorRuntime = r")(runtime);
+}
+
+},{}],"../node_modules/stats.js/src/Stats.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+var Stats = function () {
+  var mode = 0;
+  var container = document.createElement('div');
+  container.style.cssText = 'position:fixed;top:0;left:0;cursor:pointer;opacity:0.9;z-index:10000';
+  container.addEventListener('click', function (event) {
+    event.preventDefault();
+    showPanel(++mode % container.children.length);
+  }, false); //
+
+  function addPanel(panel) {
+    container.appendChild(panel.dom);
+    return panel;
+  }
+
+  function showPanel(id) {
+    for (var i = 0; i < container.children.length; i++) {
+      container.children[i].style.display = i === id ? 'block' : 'none';
+    }
+
+    mode = id;
+  } //
+
+
+  var beginTime = (performance || Date).now(),
+      prevTime = beginTime,
+      frames = 0;
+  var fpsPanel = addPanel(new Stats.Panel('FPS', '#0ff', '#002'));
+  var msPanel = addPanel(new Stats.Panel('MS', '#0f0', '#020'));
+
+  if (self.performance && self.performance.memory) {
+    var memPanel = addPanel(new Stats.Panel('MB', '#f08', '#201'));
+  }
+
+  showPanel(0);
+  return {
+    REVISION: 16,
+    dom: container,
+    addPanel: addPanel,
+    showPanel: showPanel,
+    begin: function () {
+      beginTime = (performance || Date).now();
+    },
+    end: function () {
+      frames++;
+      var time = (performance || Date).now();
+      msPanel.update(time - beginTime, 200);
+
+      if (time > prevTime + 1000) {
+        fpsPanel.update(frames * 1000 / (time - prevTime), 100);
+        prevTime = time;
+        frames = 0;
+
+        if (memPanel) {
+          var memory = performance.memory;
+          memPanel.update(memory.usedJSHeapSize / 1048576, memory.jsHeapSizeLimit / 1048576);
+        }
+      }
+
+      return time;
+    },
+    update: function () {
+      beginTime = this.end();
+    },
+    // Backwards Compatibility
+    domElement: container,
+    setMode: showPanel
+  };
+};
+
+exports.default = Stats;
+
+Stats.Panel = function (name, fg, bg) {
+  var min = Infinity,
+      max = 0,
+      round = Math.round;
+  var PR = round(window.devicePixelRatio || 1);
+  var WIDTH = 80 * PR,
+      HEIGHT = 48 * PR,
+      TEXT_X = 3 * PR,
+      TEXT_Y = 2 * PR,
+      GRAPH_X = 3 * PR,
+      GRAPH_Y = 15 * PR,
+      GRAPH_WIDTH = 74 * PR,
+      GRAPH_HEIGHT = 30 * PR;
+  var canvas = document.createElement('canvas');
+  canvas.width = WIDTH;
+  canvas.height = HEIGHT;
+  canvas.style.cssText = 'width:80px;height:48px';
+  var context = canvas.getContext('2d');
+  context.font = 'bold ' + 9 * PR + 'px Helvetica,Arial,sans-serif';
+  context.textBaseline = 'top';
+  context.fillStyle = bg;
+  context.fillRect(0, 0, WIDTH, HEIGHT);
+  context.fillStyle = fg;
+  context.fillText(name, TEXT_X, TEXT_Y);
+  context.fillRect(GRAPH_X, GRAPH_Y, GRAPH_WIDTH, GRAPH_HEIGHT);
+  context.fillStyle = bg;
+  context.globalAlpha = 0.9;
+  context.fillRect(GRAPH_X, GRAPH_Y, GRAPH_WIDTH, GRAPH_HEIGHT);
+  return {
+    dom: canvas,
+    update: function (value, maxValue) {
+      min = Math.min(min, value);
+      max = Math.max(max, value);
+      context.fillStyle = bg;
+      context.globalAlpha = 1;
+      context.fillRect(0, 0, WIDTH, GRAPH_Y);
+      context.fillStyle = fg;
+      context.fillText(round(value) + ' ' + name + ' (' + round(min) + '-' + round(max) + ')', TEXT_X, TEXT_Y);
+      context.drawImage(canvas, GRAPH_X + PR, GRAPH_Y, GRAPH_WIDTH - PR, GRAPH_HEIGHT, GRAPH_X, GRAPH_Y, GRAPH_WIDTH - PR, GRAPH_HEIGHT);
+      context.fillRect(GRAPH_X + GRAPH_WIDTH - PR, GRAPH_Y, PR, GRAPH_HEIGHT);
+      context.fillStyle = bg;
+      context.globalAlpha = 0.9;
+      context.fillRect(GRAPH_X + GRAPH_WIDTH - PR, GRAPH_Y, PR, round((1 - value / maxValue) * GRAPH_HEIGHT));
+    }
+  };
+};
+},{}],"../node_modules/dat.gui/build/dat.gui.module.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = exports.GUI = exports.gui = exports.dom = exports.controllers = exports.color = void 0;
+
+/**
+ * dat-gui JavaScript Controller Library
+ * http://code.google.com/p/dat-gui
+ *
+ * Copyright 2011 Data Arts Team, Google Creative Lab
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+function ___$insertStyle(css) {
+  if (!css) {
+    return;
+  }
+
+  if (typeof window === 'undefined') {
+    return;
+  }
+
+  var style = document.createElement('style');
+  style.setAttribute('type', 'text/css');
+  style.innerHTML = css;
+  document.head.appendChild(style);
+  return css;
+}
+
+function colorToString(color, forceCSSHex) {
+  var colorFormat = color.__state.conversionName.toString();
+
+  var r = Math.round(color.r);
+  var g = Math.round(color.g);
+  var b = Math.round(color.b);
+  var a = color.a;
+  var h = Math.round(color.h);
+  var s = color.s.toFixed(1);
+  var v = color.v.toFixed(1);
+
+  if (forceCSSHex || colorFormat === 'THREE_CHAR_HEX' || colorFormat === 'SIX_CHAR_HEX') {
+    var str = color.hex.toString(16);
+
+    while (str.length < 6) {
+      str = '0' + str;
+    }
+
+    return '#' + str;
+  } else if (colorFormat === 'CSS_RGB') {
+    return 'rgb(' + r + ',' + g + ',' + b + ')';
+  } else if (colorFormat === 'CSS_RGBA') {
+    return 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';
+  } else if (colorFormat === 'HEX') {
+    return '0x' + color.hex.toString(16);
+  } else if (colorFormat === 'RGB_ARRAY') {
+    return '[' + r + ',' + g + ',' + b + ']';
+  } else if (colorFormat === 'RGBA_ARRAY') {
+    return '[' + r + ',' + g + ',' + b + ',' + a + ']';
+  } else if (colorFormat === 'RGB_OBJ') {
+    return '{r:' + r + ',g:' + g + ',b:' + b + '}';
+  } else if (colorFormat === 'RGBA_OBJ') {
+    return '{r:' + r + ',g:' + g + ',b:' + b + ',a:' + a + '}';
+  } else if (colorFormat === 'HSV_OBJ') {
+    return '{h:' + h + ',s:' + s + ',v:' + v + '}';
+  } else if (colorFormat === 'HSVA_OBJ') {
+    return '{h:' + h + ',s:' + s + ',v:' + v + ',a:' + a + '}';
+  }
+
+  return 'unknown format';
+}
+
+var ARR_EACH = Array.prototype.forEach;
+var ARR_SLICE = Array.prototype.slice;
+var Common = {
+  BREAK: {},
+  extend: function extend(target) {
+    this.each(ARR_SLICE.call(arguments, 1), function (obj) {
+      var keys = this.isObject(obj) ? Object.keys(obj) : [];
+      keys.forEach(function (key) {
+        if (!this.isUndefined(obj[key])) {
+          target[key] = obj[key];
+        }
+      }.bind(this));
+    }, this);
+    return target;
+  },
+  defaults: function defaults(target) {
+    this.each(ARR_SLICE.call(arguments, 1), function (obj) {
+      var keys = this.isObject(obj) ? Object.keys(obj) : [];
+      keys.forEach(function (key) {
+        if (this.isUndefined(target[key])) {
+          target[key] = obj[key];
+        }
+      }.bind(this));
+    }, this);
+    return target;
+  },
+  compose: function compose() {
+    var toCall = ARR_SLICE.call(arguments);
+    return function () {
+      var args = ARR_SLICE.call(arguments);
+
+      for (var i = toCall.length - 1; i >= 0; i--) {
+        args = [toCall[i].apply(this, args)];
+      }
+
+      return args[0];
+    };
+  },
+  each: function each(obj, itr, scope) {
+    if (!obj) {
+      return;
+    }
+
+    if (ARR_EACH && obj.forEach && obj.forEach === ARR_EACH) {
+      obj.forEach(itr, scope);
+    } else if (obj.length === obj.length + 0) {
+      var key = void 0;
+      var l = void 0;
+
+      for (key = 0, l = obj.length; key < l; key++) {
+        if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) {
+          return;
+        }
+      }
+    } else {
+      for (var _key in obj) {
+        if (itr.call(scope, obj[_key], _key) === this.BREAK) {
+          return;
+        }
+      }
+    }
+  },
+  defer: function defer(fnc) {
+    setTimeout(fnc, 0);
+  },
+  debounce: function debounce(func, threshold, callImmediately) {
+    var timeout = void 0;
+    return function () {
+      var obj = this;
+      var args = arguments;
+
+      function delayed() {
+        timeout = null;
+        if (!callImmediately) func.apply(obj, args);
+      }
+
+      var callNow = callImmediately || !timeout;
+      clearTimeout(timeout);
+      timeout = setTimeout(delayed, threshold);
+
+      if (callNow) {
+        func.apply(obj, args);
+      }
+    };
+  },
+  toArray: function toArray(obj) {
+    if (obj.toArray) return obj.toArray();
+    return ARR_SLICE.call(obj);
+  },
+  isUndefined: function isUndefined(obj) {
+    return obj === undefined;
+  },
+  isNull: function isNull(obj) {
+    return obj === null;
+  },
+  isNaN: function (_isNaN) {
+    function isNaN(_x) {
+      return _isNaN.apply(this, arguments);
+    }
+
+    isNaN.toString = function () {
+      return _isNaN.toString();
+    };
+
+    return isNaN;
+  }(function (obj) {
+    return isNaN(obj);
+  }),
+  isArray: Array.isArray || function (obj) {
+    return obj.constructor === Array;
+  },
+  isObject: function isObject(obj) {
+    return obj === Object(obj);
+  },
+  isNumber: function isNumber(obj) {
+    return obj === obj + 0;
+  },
+  isString: function isString(obj) {
+    return obj === obj + '';
+  },
+  isBoolean: function isBoolean(obj) {
+    return obj === false || obj === true;
+  },
+  isFunction: function isFunction(obj) {
+    return Object.prototype.toString.call(obj) === '[object Function]';
+  }
+};
+var INTERPRETATIONS = [{
+  litmus: Common.isString,
+  conversions: {
+    THREE_CHAR_HEX: {
+      read: function read(original) {
+        var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i);
+
+        if (test === null) {
+          return false;
+        }
+
+        return {
+          space: 'HEX',
+          hex: parseInt('0x' + test[1].toString() + test[1].toString() + test[2].toString() + test[2].toString() + test[3].toString() + test[3].toString(), 0)
+        };
+      },
+      write: colorToString
+    },
+    SIX_CHAR_HEX: {
+      read: function read(original) {
+        var test = original.match(/^#([A-F0-9]{6})$/i);
+
+        if (test === null) {
+          return false;
+        }
+
+        return {
+          space: 'HEX',
+          hex: parseInt('0x' + test[1].toString(), 0)
+        };
+      },
+      write: colorToString
+    },
+    CSS_RGB: {
+      read: function read(original) {
+        var test = original.match(/^rgb\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/);
+
+        if (test === null) {
+          return false;
+        }
+
+        return {
+          space: 'RGB',
+          r: parseFloat(test[1]),
+          g: parseFloat(test[2]),
+          b: parseFloat(test[3])
+        };
+      },
+      write: colorToString
+    },
+    CSS_RGBA: {
+      read: function read(original) {
+        var test = original.match(/^rgba\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/);
+
+        if (test === null) {
+          return false;
+        }
+
+        return {
+          space: 'RGB',
+          r: parseFloat(test[1]),
+          g: parseFloat(test[2]),
+          b: parseFloat(test[3]),
+          a: parseFloat(test[4])
+        };
+      },
+      write: colorToString
+    }
+  }
+}, {
+  litmus: Common.isNumber,
+  conversions: {
+    HEX: {
+      read: function read(original) {
+        return {
+          space: 'HEX',
+          hex: original,
+          conversionName: 'HEX'
+        };
+      },
+      write: function write(color) {
+        return color.hex;
+      }
+    }
+  }
+}, {
+  litmus: Common.isArray,
+  conversions: {
+    RGB_ARRAY: {
+      read: function read(original) {
+        if (original.length !== 3) {
+          return false;
+        }
+
+        return {
+          space: 'RGB',
+          r: original[0],
+          g: original[1],
+          b: original[2]
+        };
+      },
+      write: function write(color) {
+        return [color.r, color.g, color.b];
+      }
+    },
+    RGBA_ARRAY: {
+      read: function read(original) {
+        if (original.length !== 4) return false;
+        return {
+          space: 'RGB',
+          r: original[0],
+          g: original[1],
+          b: original[2],
+          a: original[3]
+        };
+      },
+      write: function write(color) {
+        return [color.r, color.g, color.b, color.a];
+      }
+    }
+  }
+}, {
+  litmus: Common.isObject,
+  conversions: {
+    RGBA_OBJ: {
+      read: function read(original) {
+        if (Common.isNumber(original.r) && Common.isNumber(original.g) && Common.isNumber(original.b) && Common.isNumber(original.a)) {
+          return {
+            space: 'RGB',
+            r: original.r,
+            g: original.g,
+            b: original.b,
+            a: original.a
+          };
+        }
+
+        return false;
+      },
+      write: function write(color) {
+        return {
+          r: color.r,
+          g: color.g,
+          b: color.b,
+          a: color.a
+        };
+      }
+    },
+    RGB_OBJ: {
+      read: function read(original) {
+        if (Common.isNumber(original.r) && Common.isNumber(original.g) && Common.isNumber(original.b)) {
+          return {
+            space: 'RGB',
+            r: original.r,
+            g: original.g,
+            b: original.b
+          };
+        }
+
+        return false;
+      },
+      write: function write(color) {
+        return {
+          r: color.r,
+          g: color.g,
+          b: color.b
+        };
+      }
+    },
+    HSVA_OBJ: {
+      read: function read(original) {
+        if (Common.isNumber(original.h) && Common.isNumber(original.s) && Common.isNumber(original.v) && Common.isNumber(original.a)) {
+          return {
+            space: 'HSV',
+            h: original.h,
+            s: original.s,
+            v: original.v,
+            a: original.a
+          };
+        }
+
+        return false;
+      },
+      write: function write(color) {
+        return {
+          h: color.h,
+          s: color.s,
+          v: color.v,
+          a: color.a
+        };
+      }
+    },
+    HSV_OBJ: {
+      read: function read(original) {
+        if (Common.isNumber(original.h) && Common.isNumber(original.s) && Common.isNumber(original.v)) {
+          return {
+            space: 'HSV',
+            h: original.h,
+            s: original.s,
+            v: original.v
+          };
+        }
+
+        return false;
+      },
+      write: function write(color) {
+        return {
+          h: color.h,
+          s: color.s,
+          v: color.v
+        };
+      }
+    }
+  }
+}];
+var result = void 0;
+var toReturn = void 0;
+
+var interpret = function interpret() {
+  toReturn = false;
+  var original = arguments.length > 1 ? Common.toArray(arguments) : arguments[0];
+  Common.each(INTERPRETATIONS, function (family) {
+    if (family.litmus(original)) {
+      Common.each(family.conversions, function (conversion, conversionName) {
+        result = conversion.read(original);
+
+        if (toReturn === false && result !== false) {
+          toReturn = result;
+          result.conversionName = conversionName;
+          result.conversion = conversion;
+          return Common.BREAK;
+        }
+      });
+      return Common.BREAK;
+    }
+  });
+  return toReturn;
+};
+
+var tmpComponent = void 0;
+var ColorMath = {
+  hsv_to_rgb: function hsv_to_rgb(h, s, v) {
+    var hi = Math.floor(h / 60) % 6;
+    var f = h / 60 - Math.floor(h / 60);
+    var p = v * (1.0 - s);
+    var q = v * (1.0 - f * s);
+    var t = v * (1.0 - (1.0 - f) * s);
+    var c = [[v, t, p], [q, v, p], [p, v, t], [p, q, v], [t, p, v], [v, p, q]][hi];
+    return {
+      r: c[0] * 255,
+      g: c[1] * 255,
+      b: c[2] * 255
+    };
+  },
+  rgb_to_hsv: function rgb_to_hsv(r, g, b) {
+    var min = Math.min(r, g, b);
+    var max = Math.max(r, g, b);
+    var delta = max - min;
+    var h = void 0;
+    var s = void 0;
+
+    if (max !== 0) {
+      s = delta / max;
+    } else {
+      return {
+        h: NaN,
+        s: 0,
+        v: 0
+      };
+    }
+
+    if (r === max) {
+      h = (g - b) / delta;
+    } else if (g === max) {
+      h = 2 + (b - r) / delta;
+    } else {
+      h = 4 + (r - g) / delta;
+    }
+
+    h /= 6;
+
+    if (h < 0) {
+      h += 1;
+    }
+
+    return {
+      h: h * 360,
+      s: s,
+      v: max / 255
+    };
+  },
+  rgb_to_hex: function rgb_to_hex(r, g, b) {
+    var hex = this.hex_with_component(0, 2, r);
+    hex = this.hex_with_component(hex, 1, g);
+    hex = this.hex_with_component(hex, 0, b);
+    return hex;
+  },
+  component_from_hex: function component_from_hex(hex, componentIndex) {
+    return hex >> componentIndex * 8 & 0xFF;
+  },
+  hex_with_component: function hex_with_component(hex, componentIndex, value) {
+    return value << (tmpComponent = componentIndex * 8) | hex & ~(0xFF << tmpComponent);
+  }
+};
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+  return typeof obj;
+} : function (obj) {
+  return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+};
+
+var classCallCheck = function (instance, Constructor) {
+  if (!(instance instanceof Constructor)) {
+    throw new TypeError("Cannot call a class as a function");
+  }
+};
+
+var createClass = function () {
+  function defineProperties(target, props) {
+    for (var i = 0; i < props.length; i++) {
+      var descriptor = props[i];
+      descriptor.enumerable = descriptor.enumerable || false;
+      descriptor.configurable = true;
+      if ("value" in descriptor) descriptor.writable = true;
+      Object.defineProperty(target, descriptor.key, descriptor);
+    }
+  }
+
+  return function (Constructor, protoProps, staticProps) {
+    if (protoProps) defineProperties(Constructor.prototype, protoProps);
+    if (staticProps) defineProperties(Constructor, staticProps);
+    return Constructor;
+  };
+}();
+
+var get = function get(object, property, receiver) {
+  if (object === null) object = Function.prototype;
+  var desc = Object.getOwnPropertyDescriptor(object, property);
+
+  if (desc === undefined) {
+    var parent = Object.getPrototypeOf(object);
+
+    if (parent === null) {
+      return undefined;
+    } else {
+      return get(parent, property, receiver);
+    }
+  } else if ("value" in desc) {
+    return desc.value;
+  } else {
+    var getter = desc.get;
+
+    if (getter === undefined) {
+      return undefined;
+    }
+
+    return getter.call(receiver);
+  }
+};
+
+var inherits = function (subClass, superClass) {
+  if (typeof superClass !== "function" && superClass !== null) {
+    throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+  }
+
+  subClass.prototype = Object.create(superClass && superClass.prototype, {
+    constructor: {
+      value: subClass,
+      enumerable: false,
+      writable: true,
+      configurable: true
+    }
+  });
+  if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
+};
+
+var possibleConstructorReturn = function (self, call) {
+  if (!self) {
+    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+  }
+
+  return call && (typeof call === "object" || typeof call === "function") ? call : self;
+};
+
+var Color = function () {
+  function Color() {
+    classCallCheck(this, Color);
+    this.__state = interpret.apply(this, arguments);
+
+    if (this.__state === false) {
+      throw new Error('Failed to interpret color arguments');
+    }
+
+    this.__state.a = this.__state.a || 1;
+  }
+
+  createClass(Color, [{
+    key: 'toString',
+    value: function toString() {
+      return colorToString(this);
+    }
+  }, {
+    key: 'toHexString',
+    value: function toHexString() {
+      return colorToString(this, true);
+    }
+  }, {
+    key: 'toOriginal',
+    value: function toOriginal() {
+      return this.__state.conversion.write(this);
+    }
+  }]);
+  return Color;
+}();
+
+function defineRGBComponent(target, component, componentHexIndex) {
+  Object.defineProperty(target, component, {
+    get: function get$$1() {
+      if (this.__state.space === 'RGB') {
+        return this.__state[component];
+      }
+
+      Color.recalculateRGB(this, component, componentHexIndex);
+      return this.__state[component];
+    },
+    set: function set$$1(v) {
+      if (this.__state.space !== 'RGB') {
+        Color.recalculateRGB(this, component, componentHexIndex);
+        this.__state.space = 'RGB';
+      }
+
+      this.__state[component] = v;
+    }
+  });
+}
+
+function defineHSVComponent(target, component) {
+  Object.defineProperty(target, component, {
+    get: function get$$1() {
+      if (this.__state.space === 'HSV') {
+        return this.__state[component];
+      }
+
+      Color.recalculateHSV(this);
+      return this.__state[component];
+    },
+    set: function set$$1(v) {
+      if (this.__state.space !== 'HSV') {
+        Color.recalculateHSV(this);
+        this.__state.space = 'HSV';
+      }
+
+      this.__state[component] = v;
+    }
+  });
+}
+
+Color.recalculateRGB = function (color, component, componentHexIndex) {
+  if (color.__state.space === 'HEX') {
+    color.__state[component] = ColorMath.component_from_hex(color.__state.hex, componentHexIndex);
+  } else if (color.__state.space === 'HSV') {
+    Common.extend(color.__state, ColorMath.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v));
+  } else {
+    throw new Error('Corrupted color state');
+  }
+};
+
+Color.recalculateHSV = function (color) {
+  var result = ColorMath.rgb_to_hsv(color.r, color.g, color.b);
+  Common.extend(color.__state, {
+    s: result.s,
+    v: result.v
+  });
+
+  if (!Common.isNaN(result.h)) {
+    color.__state.h = result.h;
+  } else if (Common.isUndefined(color.__state.h)) {
+    color.__state.h = 0;
+  }
+};
+
+Color.COMPONENTS = ['r', 'g', 'b', 'h', 's', 'v', 'hex', 'a'];
+defineRGBComponent(Color.prototype, 'r', 2);
+defineRGBComponent(Color.prototype, 'g', 1);
+defineRGBComponent(Color.prototype, 'b', 0);
+defineHSVComponent(Color.prototype, 'h');
+defineHSVComponent(Color.prototype, 's');
+defineHSVComponent(Color.prototype, 'v');
+Object.defineProperty(Color.prototype, 'a', {
+  get: function get$$1() {
+    return this.__state.a;
+  },
+  set: function set$$1(v) {
+    this.__state.a = v;
+  }
+});
+Object.defineProperty(Color.prototype, 'hex', {
+  get: function get$$1() {
+    if (!this.__state.space !== 'HEX') {
+      this.__state.hex = ColorMath.rgb_to_hex(this.r, this.g, this.b);
+    }
+
+    return this.__state.hex;
+  },
+  set: function set$$1(v) {
+    this.__state.space = 'HEX';
+    this.__state.hex = v;
+  }
+});
+
+var Controller = function () {
+  function Controller(object, property) {
+    classCallCheck(this, Controller);
+    this.initialValue = object[property];
+    this.domElement = document.createElement('div');
+    this.object = object;
+    this.property = property;
+    this.__onChange = undefined;
+    this.__onFinishChange = undefined;
+  }
+
+  createClass(Controller, [{
+    key: 'onChange',
+    value: function onChange(fnc) {
+      this.__onChange = fnc;
+      return this;
+    }
+  }, {
+    key: 'onFinishChange',
+    value: function onFinishChange(fnc) {
+      this.__onFinishChange = fnc;
+      return this;
+    }
+  }, {
+    key: 'setValue',
+    value: function setValue(newValue) {
+      this.object[this.property] = newValue;
+
+      if (this.__onChange) {
+        this.__onChange.call(this, newValue);
+      }
+
+      this.updateDisplay();
+      return this;
+    }
+  }, {
+    key: 'getValue',
+    value: function getValue() {
+      return this.object[this.property];
+    }
+  }, {
+    key: 'updateDisplay',
+    value: function updateDisplay() {
+      return this;
+    }
+  }, {
+    key: 'isModified',
+    value: function isModified() {
+      return this.initialValue !== this.getValue();
+    }
+  }]);
+  return Controller;
+}();
+
+var EVENT_MAP = {
+  HTMLEvents: ['change'],
+  MouseEvents: ['click', 'mousemove', 'mousedown', 'mouseup', 'mouseover'],
+  KeyboardEvents: ['keydown']
+};
+var EVENT_MAP_INV = {};
+Common.each(EVENT_MAP, function (v, k) {
+  Common.each(v, function (e) {
+    EVENT_MAP_INV[e] = k;
+  });
+});
+var CSS_VALUE_PIXELS = /(\d+(\.\d+)?)px/;
+
+function cssValueToPixels(val) {
+  if (val === '0' || Common.isUndefined(val)) {
+    return 0;
+  }
+
+  var match = val.match(CSS_VALUE_PIXELS);
+
+  if (!Common.isNull(match)) {
+    return parseFloat(match[1]);
+  }
+
+  return 0;
+}
+
+var dom = {
+  makeSelectable: function makeSelectable(elem, selectable) {
+    if (elem === undefined || elem.style === undefined) return;
+    elem.onselectstart = selectable ? function () {
+      return false;
+    } : function () {};
+    elem.style.MozUserSelect = selectable ? 'auto' : 'none';
+    elem.style.KhtmlUserSelect = selectable ? 'auto' : 'none';
+    elem.unselectable = selectable ? 'on' : 'off';
+  },
+  makeFullscreen: function makeFullscreen(elem, hor, vert) {
+    var vertical = vert;
+    var horizontal = hor;
+
+    if (Common.isUndefined(horizontal)) {
+      horizontal = true;
+    }
+
+    if (Common.isUndefined(vertical)) {
+      vertical = true;
+    }
+
+    elem.style.position = 'absolute';
+
+    if (horizontal) {
+      elem.style.left = 0;
+      elem.style.right = 0;
+    }
+
+    if (vertical) {
+      elem.style.top = 0;
+      elem.style.bottom = 0;
+    }
+  },
+  fakeEvent: function fakeEvent(elem, eventType, pars, aux) {
+    var params = pars || {};
+    var className = EVENT_MAP_INV[eventType];
+
+    if (!className) {
+      throw new Error('Event type ' + eventType + ' not supported.');
+    }
+
+    var evt = document.createEvent(className);
+
+    switch (className) {
+      case 'MouseEvents':
+        {
+          var clientX = params.x || params.clientX || 0;
+          var clientY = params.y || params.clientY || 0;
+          evt.initMouseEvent(eventType, params.bubbles || false, params.cancelable || true, window, params.clickCount || 1, 0, 0, clientX, clientY, false, false, false, false, 0, null);
+          break;
+        }
+
+      case 'KeyboardEvents':
+        {
+          var init = evt.initKeyboardEvent || evt.initKeyEvent;
+          Common.defaults(params, {
+            cancelable: true,
+            ctrlKey: false,
+            altKey: false,
+            shiftKey: false,
+            metaKey: false,
+            keyCode: undefined,
+            charCode: undefined
+          });
+          init(eventType, params.bubbles || false, params.cancelable, window, params.ctrlKey, params.altKey, params.shiftKey, params.metaKey, params.keyCode, params.charCode);
+          break;
+        }
+
+      default:
+        {
+          evt.initEvent(eventType, params.bubbles || false, params.cancelable || true);
+          break;
+        }
+    }
+
+    Common.defaults(evt, aux);
+    elem.dispatchEvent(evt);
+  },
+  bind: function bind(elem, event, func, newBool) {
+    var bool = newBool || false;
+
+    if (elem.addEventListener) {
+      elem.addEventListener(event, func, bool);
+    } else if (elem.attachEvent) {
+      elem.attachEvent('on' + event, func);
+    }
+
+    return dom;
+  },
+  unbind: function unbind(elem, event, func, newBool) {
+    var bool = newBool || false;
+
+    if (elem.removeEventListener) {
+      elem.removeEventListener(event, func, bool);
+    } else if (elem.detachEvent) {
+      elem.detachEvent('on' + event, func);
+    }
+
+    return dom;
+  },
+  addClass: function addClass(elem, className) {
+    if (elem.className === undefined) {
+      elem.className = className;
+    } else if (elem.className !== className) {
+      var classes = elem.className.split(/ +/);
+
+      if (classes.indexOf(className) === -1) {
+        classes.push(className);
+        elem.className = classes.join(' ').replace(/^\s+/, '').replace(/\s+$/, '');
+      }
+    }
+
+    return dom;
+  },
+  removeClass: function removeClass(elem, className) {
+    if (className) {
+      if (elem.className === className) {
+        elem.removeAttribute('class');
+      } else {
+        var classes = elem.className.split(/ +/);
+        var index = classes.indexOf(className);
+
+        if (index !== -1) {
+          classes.splice(index, 1);
+          elem.className = classes.join(' ');
+        }
+      }
+    } else {
+      elem.className = undefined;
+    }
+
+    return dom;
+  },
+  hasClass: function hasClass(elem, className) {
+    return new RegExp('(?:^|\\s+)' + className + '(?:\\s+|$)').test(elem.className) || false;
+  },
+  getWidth: function getWidth(elem) {
+    var style = getComputedStyle(elem);
+    return cssValueToPixels(style['border-left-width']) + cssValueToPixels(style['border-right-width']) + cssValueToPixels(style['padding-left']) + cssValueToPixels(style['padding-right']) + cssValueToPixels(style.width);
+  },
+  getHeight: function getHeight(elem) {
+    var style = getComputedStyle(elem);
+    return cssValueToPixels(style['border-top-width']) + cssValueToPixels(style['border-bottom-width']) + cssValueToPixels(style['padding-top']) + cssValueToPixels(style['padding-bottom']) + cssValueToPixels(style.height);
+  },
+  getOffset: function getOffset(el) {
+    var elem = el;
+    var offset = {
+      left: 0,
+      top: 0
+    };
+
+    if (elem.offsetParent) {
+      do {
+        offset.left += elem.offsetLeft;
+        offset.top += elem.offsetTop;
+        elem = elem.offsetParent;
+      } while (elem);
+    }
+
+    return offset;
+  },
+  isActive: function isActive(elem) {
+    return elem === document.activeElement && (elem.type || elem.href);
+  }
+};
+
+var BooleanController = function (_Controller) {
+  inherits(BooleanController, _Controller);
+
+  function BooleanController(object, property) {
+    classCallCheck(this, BooleanController);
+
+    var _this2 = possibleConstructorReturn(this, (BooleanController.__proto__ || Object.getPrototypeOf(BooleanController)).call(this, object, property));
+
+    var _this = _this2;
+    _this2.__prev = _this2.getValue();
+    _this2.__checkbox = document.createElement('input');
+
+    _this2.__checkbox.setAttribute('type', 'checkbox');
+
+    function onChange() {
+      _this.setValue(!_this.__prev);
+    }
+
+    dom.bind(_this2.__checkbox, 'change', onChange, false);
+
+    _this2.domElement.appendChild(_this2.__checkbox);
+
+    _this2.updateDisplay();
+
+    return _this2;
+  }
+
+  createClass(BooleanController, [{
+    key: 'setValue',
+    value: function setValue(v) {
+      var toReturn = get(BooleanController.prototype.__proto__ || Object.getPrototypeOf(BooleanController.prototype), 'setValue', this).call(this, v);
+
+      if (this.__onFinishChange) {
+        this.__onFinishChange.call(this, this.getValue());
+      }
+
+      this.__prev = this.getValue();
+      return toReturn;
+    }
+  }, {
+    key: 'updateDisplay',
+    value: function updateDisplay() {
+      if (this.getValue() === true) {
+        this.__checkbox.setAttribute('checked', 'checked');
+
+        this.__checkbox.checked = true;
+        this.__prev = true;
+      } else {
+        this.__checkbox.checked = false;
+        this.__prev = false;
+      }
+
+      return get(BooleanController.prototype.__proto__ || Object.getPrototypeOf(BooleanController.prototype), 'updateDisplay', this).call(this);
+    }
+  }]);
+  return BooleanController;
+}(Controller);
+
+var OptionController = function (_Controller) {
+  inherits(OptionController, _Controller);
+
+  function OptionController(object, property, opts) {
+    classCallCheck(this, OptionController);
+
+    var _this2 = possibleConstructorReturn(this, (OptionController.__proto__ || Object.getPrototypeOf(OptionController)).call(this, object, property));
+
+    var options = opts;
+    var _this = _this2;
+    _this2.__select = document.createElement('select');
+
+    if (Common.isArray(options)) {
+      var map = {};
+      Common.each(options, function (element) {
+        map[element] = element;
+      });
+      options = map;
+    }
+
+    Common.each(options, function (value, key) {
+      var opt = document.createElement('option');
+      opt.innerHTML = key;
+      opt.setAttribute('value', value);
+
+      _this.__select.appendChild(opt);
+    });
+
+    _this2.updateDisplay();
+
+    dom.bind(_this2.__select, 'change', function () {
+      var desiredValue = this.options[this.selectedIndex].value;
+
+      _this.setValue(desiredValue);
+    });
+
+    _this2.domElement.appendChild(_this2.__select);
+
+    return _this2;
+  }
+
+  createClass(OptionController, [{
+    key: 'setValue',
+    value: function setValue(v) {
+      var toReturn = get(OptionController.prototype.__proto__ || Object.getPrototypeOf(OptionController.prototype), 'setValue', this).call(this, v);
+
+      if (this.__onFinishChange) {
+        this.__onFinishChange.call(this, this.getValue());
+      }
+
+      return toReturn;
+    }
+  }, {
+    key: 'updateDisplay',
+    value: function updateDisplay() {
+      if (dom.isActive(this.__select)) return this;
+      this.__select.value = this.getValue();
+      return get(OptionController.prototype.__proto__ || Object.getPrototypeOf(OptionController.prototype), 'updateDisplay', this).call(this);
+    }
+  }]);
+  return OptionController;
+}(Controller);
+
+var StringController = function (_Controller) {
+  inherits(StringController, _Controller);
+
+  function StringController(object, property) {
+    classCallCheck(this, StringController);
+
+    var _this2 = possibleConstructorReturn(this, (StringController.__proto__ || Object.getPrototypeOf(StringController)).call(this, object, property));
+
+    var _this = _this2;
+
+    function onChange() {
+      _this.setValue(_this.__input.value);
+    }
+
+    function onBlur() {
+      if (_this.__onFinishChange) {
+        _this.__onFinishChange.call(_this, _this.getValue());
+      }
+    }
+
+    _this2.__input = document.createElement('input');
+
+    _this2.__input.setAttribute('type', 'text');
+
+    dom.bind(_this2.__input, 'keyup', onChange);
+    dom.bind(_this2.__input, 'change', onChange);
+    dom.bind(_this2.__input, 'blur', onBlur);
+    dom.bind(_this2.__input, 'keydown', function (e) {
+      if (e.keyCode === 13) {
+        this.blur();
+      }
+    });
+
+    _this2.updateDisplay();
+
+    _this2.domElement.appendChild(_this2.__input);
+
+    return _this2;
+  }
+
+  createClass(StringController, [{
+    key: 'updateDisplay',
+    value: function updateDisplay() {
+      if (!dom.isActive(this.__input)) {
+        this.__input.value = this.getValue();
+      }
+
+      return get(StringController.prototype.__proto__ || Object.getPrototypeOf(StringController.prototype), 'updateDisplay', this).call(this);
+    }
+  }]);
+  return StringController;
+}(Controller);
+
+function numDecimals(x) {
+  var _x = x.toString();
+
+  if (_x.indexOf('.') > -1) {
+    return _x.length - _x.indexOf('.') - 1;
+  }
+
+  return 0;
+}
+
+var NumberController = function (_Controller) {
+  inherits(NumberController, _Controller);
+
+  function NumberController(object, property, params) {
+    classCallCheck(this, NumberController);
+
+    var _this = possibleConstructorReturn(this, (NumberController.__proto__ || Object.getPrototypeOf(NumberController)).call(this, object, property));
+
+    var _params = params || {};
+
+    _this.__min = _params.min;
+    _this.__max = _params.max;
+    _this.__step = _params.step;
+
+    if (Common.isUndefined(_this.__step)) {
+      if (_this.initialValue === 0) {
+        _this.__impliedStep = 1;
+      } else {
+        _this.__impliedStep = Math.pow(10, Math.floor(Math.log(Math.abs(_this.initialValue)) / Math.LN10)) / 10;
+      }
+    } else {
+      _this.__impliedStep = _this.__step;
+    }
+
+    _this.__precision = numDecimals(_this.__impliedStep);
+    return _this;
+  }
+
+  createClass(NumberController, [{
+    key: 'setValue',
+    value: function setValue(v) {
+      var _v = v;
+
+      if (this.__min !== undefined && _v < this.__min) {
+        _v = this.__min;
+      } else if (this.__max !== undefined && _v > this.__max) {
+        _v = this.__max;
+      }
+
+      if (this.__step !== undefined && _v % this.__step !== 0) {
+        _v = Math.round(_v / this.__step) * this.__step;
+      }
+
+      return get(NumberController.prototype.__proto__ || Object.getPrototypeOf(NumberController.prototype), 'setValue', this).call(this, _v);
+    }
+  }, {
+    key: 'min',
+    value: function min(minValue) {
+      this.__min = minValue;
+      return this;
+    }
+  }, {
+    key: 'max',
+    value: function max(maxValue) {
+      this.__max = maxValue;
+      return this;
+    }
+  }, {
+    key: 'step',
+    value: function step(stepValue) {
+      this.__step = stepValue;
+      this.__impliedStep = stepValue;
+      this.__precision = numDecimals(stepValue);
+      return this;
+    }
+  }]);
+  return NumberController;
+}(Controller);
+
+function roundToDecimal(value, decimals) {
+  var tenTo = Math.pow(10, decimals);
+  return Math.round(value * tenTo) / tenTo;
+}
+
+var NumberControllerBox = function (_NumberController) {
+  inherits(NumberControllerBox, _NumberController);
+
+  function NumberControllerBox(object, property, params) {
+    classCallCheck(this, NumberControllerBox);
+
+    var _this2 = possibleConstructorReturn(this, (NumberControllerBox.__proto__ || Object.getPrototypeOf(NumberControllerBox)).call(this, object, property, params));
+
+    _this2.__truncationSuspended = false;
+    var _this = _this2;
+    var prevY = void 0;
+
+    function onChange() {
+      var attempted = parseFloat(_this.__input.value);
+
+      if (!Common.isNaN(attempted)) {
+        _this.setValue(attempted);
+      }
+    }
+
+    function onFinish() {
+      if (_this.__onFinishChange) {
+        _this.__onFinishChange.call(_this, _this.getValue());
+      }
+    }
+
+    function onBlur() {
+      onFinish();
+    }
+
+    function onMouseDrag(e) {
+      var diff = prevY - e.clientY;
+
+      _this.setValue(_this.getValue() + diff * _this.__impliedStep);
+
+      prevY = e.clientY;
+    }
+
+    function onMouseUp() {
+      dom.unbind(window, 'mousemove', onMouseDrag);
+      dom.unbind(window, 'mouseup', onMouseUp);
+      onFinish();
+    }
+
+    function onMouseDown(e) {
+      dom.bind(window, 'mousemove', onMouseDrag);
+      dom.bind(window, 'mouseup', onMouseUp);
+      prevY = e.clientY;
+    }
+
+    _this2.__input = document.createElement('input');
+
+    _this2.__input.setAttribute('type', 'text');
+
+    dom.bind(_this2.__input, 'change', onChange);
+    dom.bind(_this2.__input, 'blur', onBlur);
+    dom.bind(_this2.__input, 'mousedown', onMouseDown);
+    dom.bind(_this2.__input, 'keydown', function (e) {
+      if (e.keyCode === 13) {
+        _this.__truncationSuspended = true;
+        this.blur();
+        _this.__truncationSuspended = false;
+        onFinish();
+      }
+    });
+
+    _this2.updateDisplay();
+
+    _this2.domElement.appendChild(_this2.__input);
+
+    return _this2;
+  }
+
+  createClass(NumberControllerBox, [{
+    key: 'updateDisplay',
+    value: function updateDisplay() {
+      this.__input.value = this.__truncationSuspended ? this.getValue() : roundToDecimal(this.getValue(), this.__precision);
+      return get(NumberControllerBox.prototype.__proto__ || Object.getPrototypeOf(NumberControllerBox.prototype), 'updateDisplay', this).call(this);
+    }
+  }]);
+  return NumberControllerBox;
+}(NumberController);
+
+function map(v, i1, i2, o1, o2) {
+  return o1 + (o2 - o1) * ((v - i1) / (i2 - i1));
+}
+
+var NumberControllerSlider = function (_NumberController) {
+  inherits(NumberControllerSlider, _NumberController);
+
+  function NumberControllerSlider(object, property, min, max, step) {
+    classCallCheck(this, NumberControllerSlider);
+
+    var _this2 = possibleConstructorReturn(this, (NumberControllerSlider.__proto__ || Object.getPrototypeOf(NumberControllerSlider)).call(this, object, property, {
+      min: min,
+      max: max,
+      step: step
+    }));
+
+    var _this = _this2;
+    _this2.__background = document.createElement('div');
+    _this2.__foreground = document.createElement('div');
+    dom.bind(_this2.__background, 'mousedown', onMouseDown);
+    dom.bind(_this2.__background, 'touchstart', onTouchStart);
+    dom.addClass(_this2.__background, 'slider');
+    dom.addClass(_this2.__foreground, 'slider-fg');
+
+    function onMouseDown(e) {
+      document.activeElement.blur();
+      dom.bind(window, 'mousemove', onMouseDrag);
+      dom.bind(window, 'mouseup', onMouseUp);
+      onMouseDrag(e);
+    }
+
+    function onMouseDrag(e) {
+      e.preventDefault();
+
+      var bgRect = _this.__background.getBoundingClientRect();
+
+      _this.setValue(map(e.clientX, bgRect.left, bgRect.right, _this.__min, _this.__max));
+
+      return false;
+    }
+
+    function onMouseUp() {
+      dom.unbind(window, 'mousemove', onMouseDrag);
+      dom.unbind(window, 'mouseup', onMouseUp);
+
+      if (_this.__onFinishChange) {
+        _this.__onFinishChange.call(_this, _this.getValue());
+      }
+    }
+
+    function onTouchStart(e) {
+      if (e.touches.length !== 1) {
+        return;
+      }
+
+      dom.bind(window, 'touchmove', onTouchMove);
+      dom.bind(window, 'touchend', onTouchEnd);
+      onTouchMove(e);
+    }
+
+    function onTouchMove(e) {
+      var clientX = e.touches[0].clientX;
+
+      var bgRect = _this.__background.getBoundingClientRect();
+
+      _this.setValue(map(clientX, bgRect.left, bgRect.right, _this.__min, _this.__max));
+    }
+
+    function onTouchEnd() {
+      dom.unbind(window, 'touchmove', onTouchMove);
+      dom.unbind(window, 'touchend', onTouchEnd);
+
+      if (_this.__onFinishChange) {
+        _this.__onFinishChange.call(_this, _this.getValue());
+      }
+    }
+
+    _this2.updateDisplay();
+
+    _this2.__background.appendChild(_this2.__foreground);
+
+    _this2.domElement.appendChild(_this2.__background);
+
+    return _this2;
+  }
+
+  createClass(NumberControllerSlider, [{
+    key: 'updateDisplay',
+    value: function updateDisplay() {
+      var pct = (this.getValue() - this.__min) / (this.__max - this.__min);
+
+      this.__foreground.style.width = pct * 100 + '%';
+      return get(NumberControllerSlider.prototype.__proto__ || Object.getPrototypeOf(NumberControllerSlider.prototype), 'updateDisplay', this).call(this);
+    }
+  }]);
+  return NumberControllerSlider;
+}(NumberController);
+
+var FunctionController = function (_Controller) {
+  inherits(FunctionController, _Controller);
+
+  function FunctionController(object, property, text) {
+    classCallCheck(this, FunctionController);
+
+    var _this2 = possibleConstructorReturn(this, (FunctionController.__proto__ || Object.getPrototypeOf(FunctionController)).call(this, object, property));
+
+    var _this = _this2;
+    _this2.__button = document.createElement('div');
+    _this2.__button.innerHTML = text === undefined ? 'Fire' : text;
+    dom.bind(_this2.__button, 'click', function (e) {
+      e.preventDefault();
+
+      _this.fire();
+
+      return false;
+    });
+    dom.addClass(_this2.__button, 'button');
+
+    _this2.domElement.appendChild(_this2.__button);
+
+    return _this2;
+  }
+
+  createClass(FunctionController, [{
+    key: 'fire',
+    value: function fire() {
+      if (this.__onChange) {
+        this.__onChange.call(this);
+      }
+
+      this.getValue().call(this.object);
+
+      if (this.__onFinishChange) {
+        this.__onFinishChange.call(this, this.getValue());
+      }
+    }
+  }]);
+  return FunctionController;
+}(Controller);
+
+var ColorController = function (_Controller) {
+  inherits(ColorController, _Controller);
+
+  function ColorController(object, property) {
+    classCallCheck(this, ColorController);
+
+    var _this2 = possibleConstructorReturn(this, (ColorController.__proto__ || Object.getPrototypeOf(ColorController)).call(this, object, property));
+
+    _this2.__color = new Color(_this2.getValue());
+    _this2.__temp = new Color(0);
+    var _this = _this2;
+    _this2.domElement = document.createElement('div');
+    dom.makeSelectable(_this2.domElement, false);
+    _this2.__selector = document.createElement('div');
+    _this2.__selector.className = 'selector';
+    _this2.__saturation_field = document.createElement('div');
+    _this2.__saturation_field.className = 'saturation-field';
+    _this2.__field_knob = document.createElement('div');
+    _this2.__field_knob.className = 'field-knob';
+    _this2.__field_knob_border = '2px solid ';
+    _this2.__hue_knob = document.createElement('div');
+    _this2.__hue_knob.className = 'hue-knob';
+    _this2.__hue_field = document.createElement('div');
+    _this2.__hue_field.className = 'hue-field';
+    _this2.__input = document.createElement('input');
+    _this2.__input.type = 'text';
+    _this2.__input_textShadow = '0 1px 1px ';
+    dom.bind(_this2.__input, 'keydown', function (e) {
+      if (e.keyCode === 13) {
+        onBlur.call(this);
+      }
+    });
+    dom.bind(_this2.__input, 'blur', onBlur);
+    dom.bind(_this2.__selector, 'mousedown', function () {
+      dom.addClass(this, 'drag').bind(window, 'mouseup', function () {
+        dom.removeClass(_this.__selector, 'drag');
+      });
+    });
+    dom.bind(_this2.__selector, 'touchstart', function () {
+      dom.addClass(this, 'drag').bind(window, 'touchend', function () {
+        dom.removeClass(_this.__selector, 'drag');
+      });
+    });
+    var valueField = document.createElement('div');
+    Common.extend(_this2.__selector.style, {
+      width: '122px',
+      height: '102px',
+      padding: '3px',
+      backgroundColor: '#222',
+      boxShadow: '0px 1px 3px rgba(0,0,0,0.3)'
+    });
+    Common.extend(_this2.__field_knob.style, {
+      position: 'absolute',
+      width: '12px',
+      height: '12px',
+      border: _this2.__field_knob_border + (_this2.__color.v < 0.5 ? '#fff' : '#000'),
+      boxShadow: '0px 1px 3px rgba(0,0,0,0.5)',
+      borderRadius: '12px',
+      zIndex: 1
+    });
+    Common.extend(_this2.__hue_knob.style, {
+      position: 'absolute',
+      width: '15px',
+      height: '2px',
+      borderRight: '4px solid #fff',
+      zIndex: 1
+    });
+    Common.extend(_this2.__saturation_field.style, {
+      width: '100px',
+      height: '100px',
+      border: '1px solid #555',
+      marginRight: '3px',
+      display: 'inline-block',
+      cursor: 'pointer'
+    });
+    Common.extend(valueField.style, {
+      width: '100%',
+      height: '100%',
+      background: 'none'
+    });
+    linearGradient(valueField, 'top', 'rgba(0,0,0,0)', '#000');
+    Common.extend(_this2.__hue_field.style, {
+      width: '15px',
+      height: '100px',
+      border: '1px solid #555',
+      cursor: 'ns-resize',
+      position: 'absolute',
+      top: '3px',
+      right: '3px'
+    });
+    hueGradient(_this2.__hue_field);
+    Common.extend(_this2.__input.style, {
+      outline: 'none',
+      textAlign: 'center',
+      color: '#fff',
+      border: 0,
+      fontWeight: 'bold',
+      textShadow: _this2.__input_textShadow + 'rgba(0,0,0,0.7)'
+    });
+    dom.bind(_this2.__saturation_field, 'mousedown', fieldDown);
+    dom.bind(_this2.__saturation_field, 'touchstart', fieldDown);
+    dom.bind(_this2.__field_knob, 'mousedown', fieldDown);
+    dom.bind(_this2.__field_knob, 'touchstart', fieldDown);
+    dom.bind(_this2.__hue_field, 'mousedown', fieldDownH);
+    dom.bind(_this2.__hue_field, 'touchstart', fieldDownH);
+
+    function fieldDown(e) {
+      setSV(e);
+      dom.bind(window, 'mousemove', setSV);
+      dom.bind(window, 'touchmove', setSV);
+      dom.bind(window, 'mouseup', fieldUpSV);
+      dom.bind(window, 'touchend', fieldUpSV);
+    }
+
+    function fieldDownH(e) {
+      setH(e);
+      dom.bind(window, 'mousemove', setH);
+      dom.bind(window, 'touchmove', setH);
+      dom.bind(window, 'mouseup', fieldUpH);
+      dom.bind(window, 'touchend', fieldUpH);
+    }
+
+    function fieldUpSV() {
+      dom.unbind(window, 'mousemove', setSV);
+      dom.unbind(window, 'touchmove', setSV);
+      dom.unbind(window, 'mouseup', fieldUpSV);
+      dom.unbind(window, 'touchend', fieldUpSV);
+      onFinish();
+    }
+
+    function fieldUpH() {
+      dom.unbind(window, 'mousemove', setH);
+      dom.unbind(window, 'touchmove', setH);
+      dom.unbind(window, 'mouseup', fieldUpH);
+      dom.unbind(window, 'touchend', fieldUpH);
+      onFinish();
+    }
+
+    function onBlur() {
+      var i = interpret(this.value);
+
+      if (i !== false) {
+        _this.__color.__state = i;
+
+        _this.setValue(_this.__color.toOriginal());
+      } else {
+        this.value = _this.__color.toString();
+      }
+    }
+
+    function onFinish() {
+      if (_this.__onFinishChange) {
+        _this.__onFinishChange.call(_this, _this.__color.toOriginal());
+      }
+    }
+
+    _this2.__saturation_field.appendChild(valueField);
+
+    _this2.__selector.appendChild(_this2.__field_knob);
+
+    _this2.__selector.appendChild(_this2.__saturation_field);
+
+    _this2.__selector.appendChild(_this2.__hue_field);
+
+    _this2.__hue_field.appendChild(_this2.__hue_knob);
+
+    _this2.domElement.appendChild(_this2.__input);
+
+    _this2.domElement.appendChild(_this2.__selector);
+
+    _this2.updateDisplay();
+
+    function setSV(e) {
+      if (e.type.indexOf('touch') === -1) {
+        e.preventDefault();
+      }
+
+      var fieldRect = _this.__saturation_field.getBoundingClientRect();
+
+      var _ref = e.touches && e.touches[0] || e,
+          clientX = _ref.clientX,
+          clientY = _ref.clientY;
+
+      var s = (clientX - fieldRect.left) / (fieldRect.right - fieldRect.left);
+      var v = 1 - (clientY - fieldRect.top) / (fieldRect.bottom - fieldRect.top);
+
+      if (v > 1) {
+        v = 1;
+      } else if (v < 0) {
+        v = 0;
+      }
+
+      if (s > 1) {
+        s = 1;
+      } else if (s < 0) {
+        s = 0;
+      }
+
+      _this.__color.v = v;
+      _this.__color.s = s;
+
+      _this.setValue(_this.__color.toOriginal());
+
+      return false;
+    }
+
+    function setH(e) {
+      if (e.type.indexOf('touch') === -1) {
+        e.preventDefault();
+      }
+
+      var fieldRect = _this.__hue_field.getBoundingClientRect();
+
+      var _ref2 = e.touches && e.touches[0] || e,
+          clientY = _ref2.clientY;
+
+      var h = 1 - (clientY - fieldRect.top) / (fieldRect.bottom - fieldRect.top);
+
+      if (h > 1) {
+        h = 1;
+      } else if (h < 0) {
+        h = 0;
+      }
+
+      _this.__color.h = h * 360;
+
+      _this.setValue(_this.__color.toOriginal());
+
+      return false;
+    }
+
+    return _this2;
+  }
+
+  createClass(ColorController, [{
+    key: 'updateDisplay',
+    value: function updateDisplay() {
+      var i = interpret(this.getValue());
+
+      if (i !== false) {
+        var mismatch = false;
+        Common.each(Color.COMPONENTS, function (component) {
+          if (!Common.isUndefined(i[component]) && !Common.isUndefined(this.__color.__state[component]) && i[component] !== this.__color.__state[component]) {
+            mismatch = true;
+            return {};
+          }
+        }, this);
+
+        if (mismatch) {
+          Common.extend(this.__color.__state, i);
+        }
+      }
+
+      Common.extend(this.__temp.__state, this.__color.__state);
+      this.__temp.a = 1;
+      var flip = this.__color.v < 0.5 || this.__color.s > 0.5 ? 255 : 0;
+
+      var _flip = 255 - flip;
+
+      Common.extend(this.__field_knob.style, {
+        marginLeft: 100 * this.__color.s - 7 + 'px',
+        marginTop: 100 * (1 - this.__color.v) - 7 + 'px',
+        backgroundColor: this.__temp.toHexString(),
+        border: this.__field_knob_border + 'rgb(' + flip + ',' + flip + ',' + flip + ')'
+      });
+      this.__hue_knob.style.marginTop = (1 - this.__color.h / 360) * 100 + 'px';
+      this.__temp.s = 1;
+      this.__temp.v = 1;
+      linearGradient(this.__saturation_field, 'left', '#fff', this.__temp.toHexString());
+      this.__input.value = this.__color.toString();
+      Common.extend(this.__input.style, {
+        backgroundColor: this.__color.toHexString(),
+        color: 'rgb(' + flip + ',' + flip + ',' + flip + ')',
+        textShadow: this.__input_textShadow + 'rgba(' + _flip + ',' + _flip + ',' + _flip + ',.7)'
+      });
+    }
+  }]);
+  return ColorController;
+}(Controller);
+
+var vendors = ['-moz-', '-o-', '-webkit-', '-ms-', ''];
+
+function linearGradient(elem, x, a, b) {
+  elem.style.background = '';
+  Common.each(vendors, function (vendor) {
+    elem.style.cssText += 'background: ' + vendor + 'linear-gradient(' + x + ', ' + a + ' 0%, ' + b + ' 100%); ';
+  });
+}
+
+function hueGradient(elem) {
+  elem.style.background = '';
+  elem.style.cssText += 'background: -moz-linear-gradient(top,  #ff0000 0%, #ff00ff 17%, #0000ff 34%, #00ffff 50%, #00ff00 67%, #ffff00 84%, #ff0000 100%);';
+  elem.style.cssText += 'background: -webkit-linear-gradient(top,  #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);';
+  elem.style.cssText += 'background: -o-linear-gradient(top,  #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);';
+  elem.style.cssText += 'background: -ms-linear-gradient(top,  #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);';
+  elem.style.cssText += 'background: linear-gradient(top,  #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);';
+}
+
+var css = {
+  load: function load(url, indoc) {
+    var doc = indoc || document;
+    var link = doc.createElement('link');
+    link.type = 'text/css';
+    link.rel = 'stylesheet';
+    link.href = url;
+    doc.getElementsByTagName('head')[0].appendChild(link);
+  },
+  inject: function inject(cssContent, indoc) {
+    var doc = indoc || document;
+    var injected = document.createElement('style');
+    injected.type = 'text/css';
+    injected.innerHTML = cssContent;
+    var head = doc.getElementsByTagName('head')[0];
+
+    try {
+      head.appendChild(injected);
+    } catch (e) {}
+  }
+};
+var saveDialogContents = "<div id=\"dg-save\" class=\"dg dialogue\">\n\n  Here's the new load parameter for your <code>GUI</code>'s constructor:\n\n  <textarea id=\"dg-new-constructor\"></textarea>\n\n  <div id=\"dg-save-locally\">\n\n    <input id=\"dg-local-storage\" type=\"checkbox\"/> Automatically save\n    values to <code>localStorage</code> on exit.\n\n    <div id=\"dg-local-explain\">The values saved to <code>localStorage</code> will\n      override those passed to <code>dat.GUI</code>'s constructor. This makes it\n      easier to work incrementally, but <code>localStorage</code> is fragile,\n      and your friends may not see the same values you do.\n\n    </div>\n\n  </div>\n\n</div>";
+
+var ControllerFactory = function ControllerFactory(object, property) {
+  var initialValue = object[property];
+
+  if (Common.isArray(arguments[2]) || Common.isObject(arguments[2])) {
+    return new OptionController(object, property, arguments[2]);
+  }
+
+  if (Common.isNumber(initialValue)) {
+    if (Common.isNumber(arguments[2]) && Common.isNumber(arguments[3])) {
+      if (Common.isNumber(arguments[4])) {
+        return new NumberControllerSlider(object, property, arguments[2], arguments[3], arguments[4]);
+      }
+
+      return new NumberControllerSlider(object, property, arguments[2], arguments[3]);
+    }
+
+    if (Common.isNumber(arguments[4])) {
+      return new NumberControllerBox(object, property, {
+        min: arguments[2],
+        max: arguments[3],
+        step: arguments[4]
+      });
+    }
+
+    return new NumberControllerBox(object, property, {
+      min: arguments[2],
+      max: arguments[3]
+    });
+  }
+
+  if (Common.isString(initialValue)) {
+    return new StringController(object, property);
+  }
+
+  if (Common.isFunction(initialValue)) {
+    return new FunctionController(object, property, '');
+  }
+
+  if (Common.isBoolean(initialValue)) {
+    return new BooleanController(object, property);
+  }
+
+  return null;
+};
+
+function requestAnimationFrame(callback) {
+  setTimeout(callback, 1000 / 60);
+}
+
+var requestAnimationFrame$1 = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || requestAnimationFrame;
+
+var CenteredDiv = function () {
+  function CenteredDiv() {
+    classCallCheck(this, CenteredDiv);
+    this.backgroundElement = document.createElement('div');
+    Common.extend(this.backgroundElement.style, {
+      backgroundColor: 'rgba(0,0,0,0.8)',
+      top: 0,
+      left: 0,
+      display: 'none',
+      zIndex: '1000',
+      opacity: 0,
+      WebkitTransition: 'opacity 0.2s linear',
+      transition: 'opacity 0.2s linear'
+    });
+    dom.makeFullscreen(this.backgroundElement);
+    this.backgroundElement.style.position = 'fixed';
+    this.domElement = document.createElement('div');
+    Common.extend(this.domElement.style, {
+      position: 'fixed',
+      display: 'none',
+      zIndex: '1001',
+      opacity: 0,
+      WebkitTransition: '-webkit-transform 0.2s ease-out, opacity 0.2s linear',
+      transition: 'transform 0.2s ease-out, opacity 0.2s linear'
+    });
+    document.body.appendChild(this.backgroundElement);
+    document.body.appendChild(this.domElement);
+
+    var _this = this;
+
+    dom.bind(this.backgroundElement, 'click', function () {
+      _this.hide();
+    });
+  }
+
+  createClass(CenteredDiv, [{
+    key: 'show',
+    value: function show() {
+      var _this = this;
+
+      this.backgroundElement.style.display = 'block';
+      this.domElement.style.display = 'block';
+      this.domElement.style.opacity = 0;
+      this.domElement.style.webkitTransform = 'scale(1.1)';
+      this.layout();
+      Common.defer(function () {
+        _this.backgroundElement.style.opacity = 1;
+        _this.domElement.style.opacity = 1;
+        _this.domElement.style.webkitTransform = 'scale(1)';
+      });
+    }
+  }, {
+    key: 'hide',
+    value: function hide() {
+      var _this = this;
+
+      var hide = function hide() {
+        _this.domElement.style.display = 'none';
+        _this.backgroundElement.style.display = 'none';
+        dom.unbind(_this.domElement, 'webkitTransitionEnd', hide);
+        dom.unbind(_this.domElement, 'transitionend', hide);
+        dom.unbind(_this.domElement, 'oTransitionEnd', hide);
+      };
+
+      dom.bind(this.domElement, 'webkitTransitionEnd', hide);
+      dom.bind(this.domElement, 'transitionend', hide);
+      dom.bind(this.domElement, 'oTransitionEnd', hide);
+      this.backgroundElement.style.opacity = 0;
+      this.domElement.style.opacity = 0;
+      this.domElement.style.webkitTransform = 'scale(1.1)';
+    }
+  }, {
+    key: 'layout',
+    value: function layout() {
+      this.domElement.style.left = window.innerWidth / 2 - dom.getWidth(this.domElement) / 2 + 'px';
+      this.domElement.style.top = window.innerHeight / 2 - dom.getHeight(this.domElement) / 2 + 'px';
+    }
+  }]);
+  return CenteredDiv;
+}();
+
+var styleSheet = ___$insertStyle(".dg ul{list-style:none;margin:0;padding:0;width:100%;clear:both}.dg.ac{position:fixed;top:0;left:0;right:0;height:0;z-index:0}.dg:not(.ac) .main{overflow:hidden}.dg.main{-webkit-transition:opacity .1s linear;-o-transition:opacity .1s linear;-moz-transition:opacity .1s linear;transition:opacity .1s linear}.dg.main.taller-than-window{overflow-y:auto}.dg.main.taller-than-window .close-button{opacity:1;margin-top:-1px;border-top:1px solid #2c2c2c}.dg.main ul.closed .close-button{opacity:1 !important}.dg.main:hover .close-button,.dg.main .close-button.drag{opacity:1}.dg.main .close-button{-webkit-transition:opacity .1s linear;-o-transition:opacity .1s linear;-moz-transition:opacity .1s linear;transition:opacity .1s linear;border:0;line-height:19px;height:20px;cursor:pointer;text-align:center;background-color:#000}.dg.main .close-button.close-top{position:relative}.dg.main .close-button.close-bottom{position:absolute}.dg.main .close-button:hover{background-color:#111}.dg.a{float:right;margin-right:15px;overflow-y:visible}.dg.a.has-save>ul.close-top{margin-top:0}.dg.a.has-save>ul.close-bottom{margin-top:27px}.dg.a.has-save>ul.closed{margin-top:0}.dg.a .save-row{top:0;z-index:1002}.dg.a .save-row.close-top{position:relative}.dg.a .save-row.close-bottom{position:fixed}.dg li{-webkit-transition:height .1s ease-out;-o-transition:height .1s ease-out;-moz-transition:height .1s ease-out;transition:height .1s ease-out;-webkit-transition:overflow .1s linear;-o-transition:overflow .1s linear;-moz-transition:overflow .1s linear;transition:overflow .1s linear}.dg li:not(.folder){cursor:auto;height:27px;line-height:27px;padding:0 4px 0 5px}.dg li.folder{padding:0;border-left:4px solid rgba(0,0,0,0)}.dg li.title{cursor:pointer;margin-left:-4px}.dg .closed li:not(.title),.dg .closed ul li,.dg .closed ul li>*{height:0;overflow:hidden;border:0}.dg .cr{clear:both;padding-left:3px;height:27px;overflow:hidden}.dg .property-name{cursor:default;float:left;clear:left;width:40%;overflow:hidden;text-overflow:ellipsis}.dg .c{float:left;width:60%;position:relative}.dg .c input[type=text]{border:0;margin-top:4px;padding:3px;width:100%;float:right}.dg .has-slider input[type=text]{width:30%;margin-left:0}.dg .slider{float:left;width:66%;margin-left:-5px;margin-right:0;height:19px;margin-top:4px}.dg .slider-fg{height:100%}.dg .c input[type=checkbox]{margin-top:7px}.dg .c select{margin-top:5px}.dg .cr.function,.dg .cr.function .property-name,.dg .cr.function *,.dg .cr.boolean,.dg .cr.boolean *{cursor:pointer}.dg .cr.color{overflow:visible}.dg .selector{display:none;position:absolute;margin-left:-9px;margin-top:23px;z-index:10}.dg .c:hover .selector,.dg .selector.drag{display:block}.dg li.save-row{padding:0}.dg li.save-row .button{display:inline-block;padding:0px 6px}.dg.dialogue{background-color:#222;width:460px;padding:15px;font-size:13px;line-height:15px}#dg-new-constructor{padding:10px;color:#222;font-family:Monaco, monospace;font-size:10px;border:0;resize:none;box-shadow:inset 1px 1px 1px #888;word-wrap:break-word;margin:12px 0;display:block;width:440px;overflow-y:scroll;height:100px;position:relative}#dg-local-explain{display:none;font-size:11px;line-height:17px;border-radius:3px;background-color:#333;padding:8px;margin-top:10px}#dg-local-explain code{font-size:10px}#dat-gui-save-locally{display:none}.dg{color:#eee;font:11px 'Lucida Grande', sans-serif;text-shadow:0 -1px 0 #111}.dg.main::-webkit-scrollbar{width:5px;background:#1a1a1a}.dg.main::-webkit-scrollbar-corner{height:0;display:none}.dg.main::-webkit-scrollbar-thumb{border-radius:5px;background:#676767}.dg li:not(.folder){background:#1a1a1a;border-bottom:1px solid #2c2c2c}.dg li.save-row{line-height:25px;background:#dad5cb;border:0}.dg li.save-row select{margin-left:5px;width:108px}.dg li.save-row .button{margin-left:5px;margin-top:1px;border-radius:2px;font-size:9px;line-height:7px;padding:4px 4px 5px 4px;background:#c5bdad;color:#fff;text-shadow:0 1px 0 #b0a58f;box-shadow:0 -1px 0 #b0a58f;cursor:pointer}.dg li.save-row .button.gears{background:#c5bdad url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAANCAYAAAB/9ZQ7AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAQJJREFUeNpiYKAU/P//PwGIC/ApCABiBSAW+I8AClAcgKxQ4T9hoMAEUrxx2QSGN6+egDX+/vWT4e7N82AMYoPAx/evwWoYoSYbACX2s7KxCxzcsezDh3evFoDEBYTEEqycggWAzA9AuUSQQgeYPa9fPv6/YWm/Acx5IPb7ty/fw+QZblw67vDs8R0YHyQhgObx+yAJkBqmG5dPPDh1aPOGR/eugW0G4vlIoTIfyFcA+QekhhHJhPdQxbiAIguMBTQZrPD7108M6roWYDFQiIAAv6Aow/1bFwXgis+f2LUAynwoIaNcz8XNx3Dl7MEJUDGQpx9gtQ8YCueB+D26OECAAQDadt7e46D42QAAAABJRU5ErkJggg==) 2px 1px no-repeat;height:7px;width:8px}.dg li.save-row .button:hover{background-color:#bab19e;box-shadow:0 -1px 0 #b0a58f}.dg li.folder{border-bottom:0}.dg li.title{padding-left:16px;background:#000 url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlI+hKgFxoCgAOw==) 6px 10px no-repeat;cursor:pointer;border-bottom:1px solid rgba(255,255,255,0.2)}.dg .closed li.title{background-image:url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlGIWqMCbWAEAOw==)}.dg .cr.boolean{border-left:3px solid #806787}.dg .cr.color{border-left:3px solid}.dg .cr.function{border-left:3px solid #e61d5f}.dg .cr.number{border-left:3px solid #2FA1D6}.dg .cr.number input[type=text]{color:#2FA1D6}.dg .cr.string{border-left:3px solid #1ed36f}.dg .cr.string input[type=text]{color:#1ed36f}.dg .cr.function:hover,.dg .cr.boolean:hover{background:#111}.dg .c input[type=text]{background:#303030;outline:none}.dg .c input[type=text]:hover{background:#3c3c3c}.dg .c input[type=text]:focus{background:#494949;color:#fff}.dg .c .slider{background:#303030;cursor:ew-resize}.dg .c .slider-fg{background:#2FA1D6;max-width:100%}.dg .c .slider:hover{background:#3c3c3c}.dg .c .slider:hover .slider-fg{background:#44abda}\n");
+
+css.inject(styleSheet);
+var CSS_NAMESPACE = 'dg';
+var HIDE_KEY_CODE = 72;
+var CLOSE_BUTTON_HEIGHT = 20;
+var DEFAULT_DEFAULT_PRESET_NAME = 'Default';
+
+var SUPPORTS_LOCAL_STORAGE = function () {
+  try {
+    return !!window.localStorage;
+  } catch (e) {
+    return false;
+  }
+}();
+
+var SAVE_DIALOGUE = void 0;
+var autoPlaceVirgin = true;
+var autoPlaceContainer = void 0;
+var hide = false;
+var hideableGuis = [];
+
+var GUI = function GUI(pars) {
+  var _this = this;
+
+  var params = pars || {};
+  this.domElement = document.createElement('div');
+  this.__ul = document.createElement('ul');
+  this.domElement.appendChild(this.__ul);
+  dom.addClass(this.domElement, CSS_NAMESPACE);
+  this.__folders = {};
+  this.__controllers = [];
+  this.__rememberedObjects = [];
+  this.__rememberedObjectIndecesToControllers = [];
+  this.__listening = [];
+  params = Common.defaults(params, {
+    closeOnTop: false,
+    autoPlace: true,
+    width: GUI.DEFAULT_WIDTH
+  });
+  params = Common.defaults(params, {
+    resizable: params.autoPlace,
+    hideable: params.autoPlace
+  });
+
+  if (!Common.isUndefined(params.load)) {
+    if (params.preset) {
+      params.load.preset = params.preset;
+    }
+  } else {
+    params.load = {
+      preset: DEFAULT_DEFAULT_PRESET_NAME
+    };
+  }
+
+  if (Common.isUndefined(params.parent) && params.hideable) {
+    hideableGuis.push(this);
+  }
+
+  params.resizable = Common.isUndefined(params.parent) && params.resizable;
+
+  if (params.autoPlace && Common.isUndefined(params.scrollable)) {
+    params.scrollable = true;
+  }
+
+  var useLocalStorage = SUPPORTS_LOCAL_STORAGE && localStorage.getItem(getLocalStorageHash(this, 'isLocal')) === 'true';
+  var saveToLocalStorage = void 0;
+  var titleRow = void 0;
+  Object.defineProperties(this, {
+    parent: {
+      get: function get$$1() {
+        return params.parent;
+      }
+    },
+    scrollable: {
+      get: function get$$1() {
+        return params.scrollable;
+      }
+    },
+    autoPlace: {
+      get: function get$$1() {
+        return params.autoPlace;
+      }
+    },
+    closeOnTop: {
+      get: function get$$1() {
+        return params.closeOnTop;
+      }
+    },
+    preset: {
+      get: function get$$1() {
+        if (_this.parent) {
+          return _this.getRoot().preset;
+        }
+
+        return params.load.preset;
+      },
+      set: function set$$1(v) {
+        if (_this.parent) {
+          _this.getRoot().preset = v;
+        } else {
+          params.load.preset = v;
+        }
+
+        setPresetSelectIndex(this);
+
+        _this.revert();
+      }
+    },
+    width: {
+      get: function get$$1() {
+        return params.width;
+      },
+      set: function set$$1(v) {
+        params.width = v;
+        setWidth(_this, v);
+      }
+    },
+    name: {
+      get: function get$$1() {
+        return params.name;
+      },
+      set: function set$$1(v) {
+        params.name = v;
+
+        if (titleRow) {
+          titleRow.innerHTML = params.name;
+        }
+      }
+    },
+    closed: {
+      get: function get$$1() {
+        return params.closed;
+      },
+      set: function set$$1(v) {
+        params.closed = v;
+
+        if (params.closed) {
+          dom.addClass(_this.__ul, GUI.CLASS_CLOSED);
+        } else {
+          dom.removeClass(_this.__ul, GUI.CLASS_CLOSED);
+        }
+
+        this.onResize();
+
+        if (_this.__closeButton) {
+          _this.__closeButton.innerHTML = v ? GUI.TEXT_OPEN : GUI.TEXT_CLOSED;
+        }
+      }
+    },
+    load: {
+      get: function get$$1() {
+        return params.load;
+      }
+    },
+    useLocalStorage: {
+      get: function get$$1() {
+        return useLocalStorage;
+      },
+      set: function set$$1(bool) {
+        if (SUPPORTS_LOCAL_STORAGE) {
+          useLocalStorage = bool;
+
+          if (bool) {
+            dom.bind(window, 'unload', saveToLocalStorage);
+          } else {
+            dom.unbind(window, 'unload', saveToLocalStorage);
+          }
+
+          localStorage.setItem(getLocalStorageHash(_this, 'isLocal'), bool);
+        }
+      }
+    }
+  });
+
+  if (Common.isUndefined(params.parent)) {
+    this.closed = params.closed || false;
+    dom.addClass(this.domElement, GUI.CLASS_MAIN);
+    dom.makeSelectable(this.domElement, false);
+
+    if (SUPPORTS_LOCAL_STORAGE) {
+      if (useLocalStorage) {
+        _this.useLocalStorage = true;
+        var savedGui = localStorage.getItem(getLocalStorageHash(this, 'gui'));
+
+        if (savedGui) {
+          params.load = JSON.parse(savedGui);
+        }
+      }
+    }
+
+    this.__closeButton = document.createElement('div');
+    this.__closeButton.innerHTML = GUI.TEXT_CLOSED;
+    dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_BUTTON);
+
+    if (params.closeOnTop) {
+      dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_TOP);
+      this.domElement.insertBefore(this.__closeButton, this.domElement.childNodes[0]);
+    } else {
+      dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_BOTTOM);
+      this.domElement.appendChild(this.__closeButton);
+    }
+
+    dom.bind(this.__closeButton, 'click', function () {
+      _this.closed = !_this.closed;
+    });
+  } else {
+    if (params.closed === undefined) {
+      params.closed = true;
+    }
+
+    var titleRowName = document.createTextNode(params.name);
+    dom.addClass(titleRowName, 'controller-name');
+    titleRow = addRow(_this, titleRowName);
+
+    var onClickTitle = function onClickTitle(e) {
+      e.preventDefault();
+      _this.closed = !_this.closed;
+      return false;
+    };
+
+    dom.addClass(this.__ul, GUI.CLASS_CLOSED);
+    dom.addClass(titleRow, 'title');
+    dom.bind(titleRow, 'click', onClickTitle);
+
+    if (!params.closed) {
+      this.closed = false;
+    }
+  }
+
+  if (params.autoPlace) {
+    if (Common.isUndefined(params.parent)) {
+      if (autoPlaceVirgin) {
+        autoPlaceContainer = document.createElement('div');
+        dom.addClass(autoPlaceContainer, CSS_NAMESPACE);
+        dom.addClass(autoPlaceContainer, GUI.CLASS_AUTO_PLACE_CONTAINER);
+        document.body.appendChild(autoPlaceContainer);
+        autoPlaceVirgin = false;
+      }
+
+      autoPlaceContainer.appendChild(this.domElement);
+      dom.addClass(this.domElement, GUI.CLASS_AUTO_PLACE);
+    }
+
+    if (!this.parent) {
+      setWidth(_this, params.width);
+    }
+  }
+
+  this.__resizeHandler = function () {
+    _this.onResizeDebounced();
+  };
+
+  dom.bind(window, 'resize', this.__resizeHandler);
+  dom.bind(this.__ul, 'webkitTransitionEnd', this.__resizeHandler);
+  dom.bind(this.__ul, 'transitionend', this.__resizeHandler);
+  dom.bind(this.__ul, 'oTransitionEnd', this.__resizeHandler);
+  this.onResize();
+
+  if (params.resizable) {
+    addResizeHandle(this);
+  }
+
+  saveToLocalStorage = function saveToLocalStorage() {
+    if (SUPPORTS_LOCAL_STORAGE && localStorage.getItem(getLocalStorageHash(_this, 'isLocal')) === 'true') {
+      localStorage.setItem(getLocalStorageHash(_this, 'gui'), JSON.stringify(_this.getSaveObject()));
+    }
+  };
+
+  this.saveToLocalStorageIfPossible = saveToLocalStorage;
+
+  function resetWidth() {
+    var root = _this.getRoot();
+
+    root.width += 1;
+    Common.defer(function () {
+      root.width -= 1;
+    });
+  }
+
+  if (!params.parent) {
+    resetWidth();
+  }
+};
+
+GUI.toggleHide = function () {
+  hide = !hide;
+  Common.each(hideableGuis, function (gui) {
+    gui.domElement.style.display = hide ? 'none' : '';
+  });
+};
+
+GUI.CLASS_AUTO_PLACE = 'a';
+GUI.CLASS_AUTO_PLACE_CONTAINER = 'ac';
+GUI.CLASS_MAIN = 'main';
+GUI.CLASS_CONTROLLER_ROW = 'cr';
+GUI.CLASS_TOO_TALL = 'taller-than-window';
+GUI.CLASS_CLOSED = 'closed';
+GUI.CLASS_CLOSE_BUTTON = 'close-button';
+GUI.CLASS_CLOSE_TOP = 'close-top';
+GUI.CLASS_CLOSE_BOTTOM = 'close-bottom';
+GUI.CLASS_DRAG = 'drag';
+GUI.DEFAULT_WIDTH = 245;
+GUI.TEXT_CLOSED = 'Close Controls';
+GUI.TEXT_OPEN = 'Open Controls';
+
+GUI._keydownHandler = function (e) {
+  if (document.activeElement.type !== 'text' && (e.which === HIDE_KEY_CODE || e.keyCode === HIDE_KEY_CODE)) {
+    GUI.toggleHide();
+  }
+};
+
+dom.bind(window, 'keydown', GUI._keydownHandler, false);
+Common.extend(GUI.prototype, {
+  add: function add(object, property) {
+    return _add(this, object, property, {
+      factoryArgs: Array.prototype.slice.call(arguments, 2)
+    });
+  },
+  addColor: function addColor(object, property) {
+    return _add(this, object, property, {
+      color: true
+    });
+  },
+  remove: function remove(controller) {
+    this.__ul.removeChild(controller.__li);
+
+    this.__controllers.splice(this.__controllers.indexOf(controller), 1);
+
+    var _this = this;
+
+    Common.defer(function () {
+      _this.onResize();
+    });
+  },
+  destroy: function destroy() {
+    if (this.parent) {
+      throw new Error('Only the root GUI should be removed with .destroy(). ' + 'For subfolders, use gui.removeFolder(folder) instead.');
+    }
+
+    if (this.autoPlace) {
+      autoPlaceContainer.removeChild(this.domElement);
+    }
+
+    var _this = this;
+
+    Common.each(this.__folders, function (subfolder) {
+      _this.removeFolder(subfolder);
+    });
+    dom.unbind(window, 'keydown', GUI._keydownHandler, false);
+    removeListeners(this);
+  },
+  addFolder: function addFolder(name) {
+    if (this.__folders[name] !== undefined) {
+      throw new Error('You already have a folder in this GUI by the' + ' name "' + name + '"');
+    }
+
+    var newGuiParams = {
+      name: name,
+      parent: this
+    };
+    newGuiParams.autoPlace = this.autoPlace;
+
+    if (this.load && this.load.folders && this.load.folders[name]) {
+      newGuiParams.closed = this.load.folders[name].closed;
+      newGuiParams.load = this.load.folders[name];
+    }
+
+    var gui = new GUI(newGuiParams);
+    this.__folders[name] = gui;
+    var li = addRow(this, gui.domElement);
+    dom.addClass(li, 'folder');
+    return gui;
+  },
+  removeFolder: function removeFolder(folder) {
+    this.__ul.removeChild(folder.domElement.parentElement);
+
+    delete this.__folders[folder.name];
+
+    if (this.load && this.load.folders && this.load.folders[folder.name]) {
+      delete this.load.folders[folder.name];
+    }
+
+    removeListeners(folder);
+
+    var _this = this;
+
+    Common.each(folder.__folders, function (subfolder) {
+      folder.removeFolder(subfolder);
+    });
+    Common.defer(function () {
+      _this.onResize();
+    });
+  },
+  open: function open() {
+    this.closed = false;
+  },
+  close: function close() {
+    this.closed = true;
+  },
+  hide: function hide() {
+    this.domElement.style.display = 'none';
+  },
+  show: function show() {
+    this.domElement.style.display = '';
+  },
+  onResize: function onResize() {
+    var root = this.getRoot();
+
+    if (root.scrollable) {
+      var top = dom.getOffset(root.__ul).top;
+      var h = 0;
+      Common.each(root.__ul.childNodes, function (node) {
+        if (!(root.autoPlace && node === root.__save_row)) {
+          h += dom.getHeight(node);
+        }
+      });
+
+      if (window.innerHeight - top - CLOSE_BUTTON_HEIGHT < h) {
+        dom.addClass(root.domElement, GUI.CLASS_TOO_TALL);
+        root.__ul.style.height = window.innerHeight - top - CLOSE_BUTTON_HEIGHT + 'px';
+      } else {
+        dom.removeClass(root.domElement, GUI.CLASS_TOO_TALL);
+        root.__ul.style.height = 'auto';
+      }
+    }
+
+    if (root.__resize_handle) {
+      Common.defer(function () {
+        root.__resize_handle.style.height = root.__ul.offsetHeight + 'px';
+      });
+    }
+
+    if (root.__closeButton) {
+      root.__closeButton.style.width = root.width + 'px';
+    }
+  },
+  onResizeDebounced: Common.debounce(function () {
+    this.onResize();
+  }, 50),
+  remember: function remember() {
+    if (Common.isUndefined(SAVE_DIALOGUE)) {
+      SAVE_DIALOGUE = new CenteredDiv();
+      SAVE_DIALOGUE.domElement.innerHTML = saveDialogContents;
+    }
+
+    if (this.parent) {
+      throw new Error('You can only call remember on a top level GUI.');
+    }
+
+    var _this = this;
+
+    Common.each(Array.prototype.slice.call(arguments), function (object) {
+      if (_this.__rememberedObjects.length === 0) {
+        addSaveMenu(_this);
+      }
+
+      if (_this.__rememberedObjects.indexOf(object) === -1) {
+        _this.__rememberedObjects.push(object);
+      }
+    });
+
+    if (this.autoPlace) {
+      setWidth(this, this.width);
+    }
+  },
+  getRoot: function getRoot() {
+    var gui = this;
+
+    while (gui.parent) {
+      gui = gui.parent;
+    }
+
+    return gui;
+  },
+  getSaveObject: function getSaveObject() {
+    var toReturn = this.load;
+    toReturn.closed = this.closed;
+
+    if (this.__rememberedObjects.length > 0) {
+      toReturn.preset = this.preset;
+
+      if (!toReturn.remembered) {
+        toReturn.remembered = {};
+      }
+
+      toReturn.remembered[this.preset] = getCurrentPreset(this);
+    }
+
+    toReturn.folders = {};
+    Common.each(this.__folders, function (element, key) {
+      toReturn.folders[key] = element.getSaveObject();
+    });
+    return toReturn;
+  },
+  save: function save() {
+    if (!this.load.remembered) {
+      this.load.remembered = {};
+    }
+
+    this.load.remembered[this.preset] = getCurrentPreset(this);
+    markPresetModified(this, false);
+    this.saveToLocalStorageIfPossible();
+  },
+  saveAs: function saveAs(presetName) {
+    if (!this.load.remembered) {
+      this.load.remembered = {};
+      this.load.remembered[DEFAULT_DEFAULT_PRESET_NAME] = getCurrentPreset(this, true);
+    }
+
+    this.load.remembered[presetName] = getCurrentPreset(this);
+    this.preset = presetName;
+    addPresetOption(this, presetName, true);
+    this.saveToLocalStorageIfPossible();
+  },
+  revert: function revert(gui) {
+    Common.each(this.__controllers, function (controller) {
+      if (!this.getRoot().load.remembered) {
+        controller.setValue(controller.initialValue);
+      } else {
+        recallSavedValue(gui || this.getRoot(), controller);
+      }
+
+      if (controller.__onFinishChange) {
+        controller.__onFinishChange.call(controller, controller.getValue());
+      }
+    }, this);
+    Common.each(this.__folders, function (folder) {
+      folder.revert(folder);
+    });
+
+    if (!gui) {
+      markPresetModified(this.getRoot(), false);
+    }
+  },
+  listen: function listen(controller) {
+    var init = this.__listening.length === 0;
+
+    this.__listening.push(controller);
+
+    if (init) {
+      updateDisplays(this.__listening);
+    }
+  },
+  updateDisplay: function updateDisplay() {
+    Common.each(this.__controllers, function (controller) {
+      controller.updateDisplay();
+    });
+    Common.each(this.__folders, function (folder) {
+      folder.updateDisplay();
+    });
+  }
+});
+
+function addRow(gui, newDom, liBefore) {
+  var li = document.createElement('li');
+
+  if (newDom) {
+    li.appendChild(newDom);
+  }
+
+  if (liBefore) {
+    gui.__ul.insertBefore(li, liBefore);
+  } else {
+    gui.__ul.appendChild(li);
+  }
+
+  gui.onResize();
+  return li;
+}
+
+function removeListeners(gui) {
+  dom.unbind(window, 'resize', gui.__resizeHandler);
+
+  if (gui.saveToLocalStorageIfPossible) {
+    dom.unbind(window, 'unload', gui.saveToLocalStorageIfPossible);
+  }
+}
+
+function markPresetModified(gui, modified) {
+  var opt = gui.__preset_select[gui.__preset_select.selectedIndex];
+
+  if (modified) {
+    opt.innerHTML = opt.value + '*';
+  } else {
+    opt.innerHTML = opt.value;
+  }
+}
+
+function augmentController(gui, li, controller) {
+  controller.__li = li;
+  controller.__gui = gui;
+  Common.extend(controller, {
+    options: function options(_options) {
+      if (arguments.length > 1) {
+        var nextSibling = controller.__li.nextElementSibling;
+        controller.remove();
+        return _add(gui, controller.object, controller.property, {
+          before: nextSibling,
+          factoryArgs: [Common.toArray(arguments)]
+        });
+      }
+
+      if (Common.isArray(_options) || Common.isObject(_options)) {
+        var _nextSibling = controller.__li.nextElementSibling;
+        controller.remove();
+        return _add(gui, controller.object, controller.property, {
+          before: _nextSibling,
+          factoryArgs: [_options]
+        });
+      }
+    },
+    name: function name(_name) {
+      controller.__li.firstElementChild.firstElementChild.innerHTML = _name;
+      return controller;
+    },
+    listen: function listen() {
+      controller.__gui.listen(controller);
+
+      return controller;
+    },
+    remove: function remove() {
+      controller.__gui.remove(controller);
+
+      return controller;
+    }
+  });
+
+  if (controller instanceof NumberControllerSlider) {
+    var box = new NumberControllerBox(controller.object, controller.property, {
+      min: controller.__min,
+      max: controller.__max,
+      step: controller.__step
+    });
+    Common.each(['updateDisplay', 'onChange', 'onFinishChange', 'step', 'min', 'max'], function (method) {
+      var pc = controller[method];
+      var pb = box[method];
+
+      controller[method] = box[method] = function () {
+        var args = Array.prototype.slice.call(arguments);
+        pb.apply(box, args);
+        return pc.apply(controller, args);
+      };
+    });
+    dom.addClass(li, 'has-slider');
+    controller.domElement.insertBefore(box.domElement, controller.domElement.firstElementChild);
+  } else if (controller instanceof NumberControllerBox) {
+    var r = function r(returned) {
+      if (Common.isNumber(controller.__min) && Common.isNumber(controller.__max)) {
+        var oldName = controller.__li.firstElementChild.firstElementChild.innerHTML;
+        var wasListening = controller.__gui.__listening.indexOf(controller) > -1;
+        controller.remove();
+
+        var newController = _add(gui, controller.object, controller.property, {
+          before: controller.__li.nextElementSibling,
+          factoryArgs: [controller.__min, controller.__max, controller.__step]
+        });
+
+        newController.name(oldName);
+        if (wasListening) newController.listen();
+        return newController;
+      }
+
+      return returned;
+    };
+
+    controller.min = Common.compose(r, controller.min);
+    controller.max = Common.compose(r, controller.max);
+  } else if (controller instanceof BooleanController) {
+    dom.bind(li, 'click', function () {
+      dom.fakeEvent(controller.__checkbox, 'click');
+    });
+    dom.bind(controller.__checkbox, 'click', function (e) {
+      e.stopPropagation();
+    });
+  } else if (controller instanceof FunctionController) {
+    dom.bind(li, 'click', function () {
+      dom.fakeEvent(controller.__button, 'click');
+    });
+    dom.bind(li, 'mouseover', function () {
+      dom.addClass(controller.__button, 'hover');
+    });
+    dom.bind(li, 'mouseout', function () {
+      dom.removeClass(controller.__button, 'hover');
+    });
+  } else if (controller instanceof ColorController) {
+    dom.addClass(li, 'color');
+    controller.updateDisplay = Common.compose(function (val) {
+      li.style.borderLeftColor = controller.__color.toString();
+      return val;
+    }, controller.updateDisplay);
+    controller.updateDisplay();
+  }
+
+  controller.setValue = Common.compose(function (val) {
+    if (gui.getRoot().__preset_select && controller.isModified()) {
+      markPresetModified(gui.getRoot(), true);
+    }
+
+    return val;
+  }, controller.setValue);
+}
+
+function recallSavedValue(gui, controller) {
+  var root = gui.getRoot();
+
+  var matchedIndex = root.__rememberedObjects.indexOf(controller.object);
+
+  if (matchedIndex !== -1) {
+    var controllerMap = root.__rememberedObjectIndecesToControllers[matchedIndex];
+
+    if (controllerMap === undefined) {
+      controllerMap = {};
+      root.__rememberedObjectIndecesToControllers[matchedIndex] = controllerMap;
+    }
+
+    controllerMap[controller.property] = controller;
+
+    if (root.load && root.load.remembered) {
+      var presetMap = root.load.remembered;
+      var preset = void 0;
+
+      if (presetMap[gui.preset]) {
+        preset = presetMap[gui.preset];
+      } else if (presetMap[DEFAULT_DEFAULT_PRESET_NAME]) {
+        preset = presetMap[DEFAULT_DEFAULT_PRESET_NAME];
+      } else {
+        return;
+      }
+
+      if (preset[matchedIndex] && preset[matchedIndex][controller.property] !== undefined) {
+        var value = preset[matchedIndex][controller.property];
+        controller.initialValue = value;
+        controller.setValue(value);
+      }
+    }
+  }
+}
+
+function _add(gui, object, property, params) {
+  if (object[property] === undefined) {
+    throw new Error('Object "' + object + '" has no property "' + property + '"');
+  }
+
+  var controller = void 0;
+
+  if (params.color) {
+    controller = new ColorController(object, property);
+  } else {
+    var factoryArgs = [object, property].concat(params.factoryArgs);
+    controller = ControllerFactory.apply(gui, factoryArgs);
+  }
+
+  if (params.before instanceof Controller) {
+    params.before = params.before.__li;
+  }
+
+  recallSavedValue(gui, controller);
+  dom.addClass(controller.domElement, 'c');
+  var name = document.createElement('span');
+  dom.addClass(name, 'property-name');
+  name.innerHTML = controller.property;
+  var container = document.createElement('div');
+  container.appendChild(name);
+  container.appendChild(controller.domElement);
+  var li = addRow(gui, container, params.before);
+  dom.addClass(li, GUI.CLASS_CONTROLLER_ROW);
+
+  if (controller instanceof ColorController) {
+    dom.addClass(li, 'color');
+  } else {
+    dom.addClass(li, _typeof(controller.getValue()));
+  }
+
+  augmentController(gui, li, controller);
+
+  gui.__controllers.push(controller);
+
+  return controller;
+}
+
+function getLocalStorageHash(gui, key) {
+  return document.location.href + '.' + key;
+}
+
+function addPresetOption(gui, name, setSelected) {
+  var opt = document.createElement('option');
+  opt.innerHTML = name;
+  opt.value = name;
+
+  gui.__preset_select.appendChild(opt);
+
+  if (setSelected) {
+    gui.__preset_select.selectedIndex = gui.__preset_select.length - 1;
+  }
+}
+
+function showHideExplain(gui, explain) {
+  explain.style.display = gui.useLocalStorage ? 'block' : 'none';
+}
+
+function addSaveMenu(gui) {
+  var div = gui.__save_row = document.createElement('li');
+  dom.addClass(gui.domElement, 'has-save');
+
+  gui.__ul.insertBefore(div, gui.__ul.firstChild);
+
+  dom.addClass(div, 'save-row');
+  var gears = document.createElement('span');
+  gears.innerHTML = '&nbsp;';
+  dom.addClass(gears, 'button gears');
+  var button = document.createElement('span');
+  button.innerHTML = 'Save';
+  dom.addClass(button, 'button');
+  dom.addClass(button, 'save');
+  var button2 = document.createElement('span');
+  button2.innerHTML = 'New';
+  dom.addClass(button2, 'button');
+  dom.addClass(button2, 'save-as');
+  var button3 = document.createElement('span');
+  button3.innerHTML = 'Revert';
+  dom.addClass(button3, 'button');
+  dom.addClass(button3, 'revert');
+  var select = gui.__preset_select = document.createElement('select');
+
+  if (gui.load && gui.load.remembered) {
+    Common.each(gui.load.remembered, function (value, key) {
+      addPresetOption(gui, key, key === gui.preset);
+    });
+  } else {
+    addPresetOption(gui, DEFAULT_DEFAULT_PRESET_NAME, false);
+  }
+
+  dom.bind(select, 'change', function () {
+    for (var index = 0; index < gui.__preset_select.length; index++) {
+      gui.__preset_select[index].innerHTML = gui.__preset_select[index].value;
+    }
+
+    gui.preset = this.value;
+  });
+  div.appendChild(select);
+  div.appendChild(gears);
+  div.appendChild(button);
+  div.appendChild(button2);
+  div.appendChild(button3);
+
+  if (SUPPORTS_LOCAL_STORAGE) {
+    var explain = document.getElementById('dg-local-explain');
+    var localStorageCheckBox = document.getElementById('dg-local-storage');
+    var saveLocally = document.getElementById('dg-save-locally');
+    saveLocally.style.display = 'block';
+
+    if (localStorage.getItem(getLocalStorageHash(gui, 'isLocal')) === 'true') {
+      localStorageCheckBox.setAttribute('checked', 'checked');
+    }
+
+    showHideExplain(gui, explain);
+    dom.bind(localStorageCheckBox, 'change', function () {
+      gui.useLocalStorage = !gui.useLocalStorage;
+      showHideExplain(gui, explain);
+    });
+  }
+
+  var newConstructorTextArea = document.getElementById('dg-new-constructor');
+  dom.bind(newConstructorTextArea, 'keydown', function (e) {
+    if (e.metaKey && (e.which === 67 || e.keyCode === 67)) {
+      SAVE_DIALOGUE.hide();
+    }
+  });
+  dom.bind(gears, 'click', function () {
+    newConstructorTextArea.innerHTML = JSON.stringify(gui.getSaveObject(), undefined, 2);
+    SAVE_DIALOGUE.show();
+    newConstructorTextArea.focus();
+    newConstructorTextArea.select();
+  });
+  dom.bind(button, 'click', function () {
+    gui.save();
+  });
+  dom.bind(button2, 'click', function () {
+    var presetName = prompt('Enter a new preset name.');
+
+    if (presetName) {
+      gui.saveAs(presetName);
+    }
+  });
+  dom.bind(button3, 'click', function () {
+    gui.revert();
+  });
+}
+
+function addResizeHandle(gui) {
+  var pmouseX = void 0;
+  gui.__resize_handle = document.createElement('div');
+  Common.extend(gui.__resize_handle.style, {
+    width: '6px',
+    marginLeft: '-3px',
+    height: '200px',
+    cursor: 'ew-resize',
+    position: 'absolute'
+  });
+
+  function drag(e) {
+    e.preventDefault();
+    gui.width += pmouseX - e.clientX;
+    gui.onResize();
+    pmouseX = e.clientX;
+    return false;
+  }
+
+  function dragStop() {
+    dom.removeClass(gui.__closeButton, GUI.CLASS_DRAG);
+    dom.unbind(window, 'mousemove', drag);
+    dom.unbind(window, 'mouseup', dragStop);
+  }
+
+  function dragStart(e) {
+    e.preventDefault();
+    pmouseX = e.clientX;
+    dom.addClass(gui.__closeButton, GUI.CLASS_DRAG);
+    dom.bind(window, 'mousemove', drag);
+    dom.bind(window, 'mouseup', dragStop);
+    return false;
+  }
+
+  dom.bind(gui.__resize_handle, 'mousedown', dragStart);
+  dom.bind(gui.__closeButton, 'mousedown', dragStart);
+  gui.domElement.insertBefore(gui.__resize_handle, gui.domElement.firstElementChild);
+}
+
+function setWidth(gui, w) {
+  gui.domElement.style.width = w + 'px';
+
+  if (gui.__save_row && gui.autoPlace) {
+    gui.__save_row.style.width = w + 'px';
+  }
+
+  if (gui.__closeButton) {
+    gui.__closeButton.style.width = w + 'px';
+  }
+}
+
+function getCurrentPreset(gui, useInitialValues) {
+  var toReturn = {};
+  Common.each(gui.__rememberedObjects, function (val, index) {
+    var savedValues = {};
+    var controllerMap = gui.__rememberedObjectIndecesToControllers[index];
+    Common.each(controllerMap, function (controller, property) {
+      savedValues[property] = useInitialValues ? controller.initialValue : controller.getValue();
+    });
+    toReturn[index] = savedValues;
+  });
+  return toReturn;
+}
+
+function setPresetSelectIndex(gui) {
+  for (var index = 0; index < gui.__preset_select.length; index++) {
+    if (gui.__preset_select[index].value === gui.preset) {
+      gui.__preset_select.selectedIndex = index;
+    }
+  }
+}
+
+function updateDisplays(controllerArray) {
+  if (controllerArray.length !== 0) {
+    requestAnimationFrame$1.call(window, function () {
+      updateDisplays(controllerArray);
+    });
+  }
+
+  Common.each(controllerArray, function (c) {
+    c.updateDisplay();
+  });
+}
+
+var color = {
+  Color: Color,
+  math: ColorMath,
+  interpret: interpret
+};
+exports.color = color;
+var controllers = {
+  Controller: Controller,
+  BooleanController: BooleanController,
+  OptionController: OptionController,
+  StringController: StringController,
+  NumberController: NumberController,
+  NumberControllerBox: NumberControllerBox,
+  NumberControllerSlider: NumberControllerSlider,
+  FunctionController: FunctionController,
+  ColorController: ColorController
+};
+exports.controllers = controllers;
+var dom$1 = {
+  dom: dom
+};
+exports.dom = dom$1;
+var gui = {
+  GUI: GUI
+};
+exports.gui = gui;
+var GUI$1 = GUI;
+exports.GUI = GUI$1;
+var index = {
+  color: color,
+  controllers: controllers,
+  dom: dom$1,
+  gui: gui,
+  GUI: GUI$1
+};
+var _default = index;
+exports.default = _default;
+},{}],"../node_modules/three/build/three.module.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ArrayCamera = ArrayCamera;
+exports.AxisHelper = AxisHelper;
+exports.BinaryTextureLoader = BinaryTextureLoader;
+exports.Bone = Bone;
+exports.BoundingBoxHelper = BoundingBoxHelper;
+exports.BufferAttribute = BufferAttribute;
+exports.BufferGeometry = BufferGeometry;
+exports.Camera = Camera;
+exports.CanvasRenderer = CanvasRenderer;
+exports.CompressedTextureLoader = CompressedTextureLoader;
+exports.CubicInterpolant = CubicInterpolant;
+exports.Curve = Curve;
+exports.DataTextureLoader = DataTextureLoader;
+exports.DiscreteInterpolant = DiscreteInterpolant;
+exports.DynamicBufferAttribute = DynamicBufferAttribute;
+exports.EdgesHelper = EdgesHelper;
+exports.EventDispatcher = EventDispatcher;
+exports.FileLoader = FileLoader;
+exports.Float16BufferAttribute = Float16BufferAttribute;
+exports.Float32Attribute = Float32Attribute;
+exports.Float32BufferAttribute = Float32BufferAttribute;
+exports.Float64Attribute = Float64Attribute;
+exports.Float64BufferAttribute = Float64BufferAttribute;
+exports.GLBufferAttribute = GLBufferAttribute;
+exports.ImageBitmapLoader = ImageBitmapLoader;
+exports.ImmediateRenderObject = ImmediateRenderObject;
+exports.InstancedBufferAttribute = InstancedBufferAttribute;
+exports.InstancedBufferGeometry = InstancedBufferGeometry;
+exports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;
+exports.InstancedMesh = InstancedMesh;
+exports.Int16Attribute = Int16Attribute;
+exports.Int16BufferAttribute = Int16BufferAttribute;
+exports.Int32Attribute = Int32Attribute;
+exports.Int32BufferAttribute = Int32BufferAttribute;
+exports.Int8Attribute = Int8Attribute;
+exports.Int8BufferAttribute = Int8BufferAttribute;
+exports.InterleavedBuffer = InterleavedBuffer;
+exports.InterleavedBufferAttribute = InterleavedBufferAttribute;
+exports.Interpolant = Interpolant;
+exports.JSONLoader = JSONLoader;
+exports.LensFlare = LensFlare;
+exports.Line = Line;
+exports.LineSegments = LineSegments;
+exports.LinearInterpolant = LinearInterpolant;
+exports.Loader = Loader;
+exports.LoadingManager = LoadingManager;
+exports.Material = Material;
+exports.Mesh = Mesh;
+exports.MeshFaceMaterial = MeshFaceMaterial;
+exports.MeshPhysicalMaterial = MeshPhysicalMaterial;
+exports.MeshStandardMaterial = MeshStandardMaterial;
+exports.MultiMaterial = MultiMaterial;
+exports.Object3D = Object3D;
+exports.ParametricGeometry = exports.ParametricBufferGeometry = ParametricGeometry;
+exports.Particle = Particle;
+exports.ParticleBasicMaterial = ParticleBasicMaterial;
+exports.ParticleSystem = ParticleSystem;
+exports.ParticleSystemMaterial = ParticleSystemMaterial;
+exports.PerspectiveCamera = PerspectiveCamera;
+exports.PointCloud = PointCloud;
+exports.PointCloudMaterial = PointCloudMaterial;
+exports.Points = Points;
+exports.PropertyBinding = PropertyBinding;
+exports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;
+exports.Raycaster = Raycaster;
+exports.ShaderMaterial = ShaderMaterial;
+exports.SkinnedMesh = SkinnedMesh;
+exports.TextureLoader = TextureLoader;
+exports.Uint16Attribute = Uint16Attribute;
+exports.Uint16BufferAttribute = Uint16BufferAttribute;
+exports.Uint32Attribute = Uint32Attribute;
+exports.Uint32BufferAttribute = Uint32BufferAttribute;
+exports.Uint8Attribute = Uint8Attribute;
+exports.Uint8BufferAttribute = Uint8BufferAttribute;
+exports.Uint8ClampedAttribute = Uint8ClampedAttribute;
+exports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;
+exports.Vertex = Vertex;
+exports.WebGLRenderTargetCube = WebGLRenderTargetCube;
+exports.WebGLRenderer = WebGLRenderer;
+exports.WebGLUtils = WebGLUtils;
+exports.WireframeHelper = WireframeHelper;
+exports.XHRLoader = XHRLoader;
+exports.FloatType = exports.FlatShading = exports.FaceColors = exports.ExtrudeGeometry = exports.ExtrudeBufferGeometry = exports.Euler = exports.EquirectangularRefractionMapping = exports.EquirectangularReflectionMapping = exports.EqualStencilFunc = exports.EqualDepth = exports.EllipseCurve = exports.EdgesGeometry = exports.DynamicReadUsage = exports.DynamicDrawUsage = exports.DynamicCopyUsage = exports.DstColorFactor = exports.DstAlphaFactor = exports.DoubleSide = exports.DodecahedronGeometry = exports.DodecahedronBufferGeometry = exports.DirectionalLightHelper = exports.DirectionalLight = exports.DepthTexture = exports.DepthStencilFormat = exports.DepthFormat = exports.DefaultLoadingManager = exports.DecrementWrapStencilOp = exports.DecrementStencilOp = exports.DataUtils = exports.DataTexture3D = exports.DataTexture2DArray = exports.DataTexture = exports.Cylindrical = exports.CylinderGeometry = exports.CylinderBufferGeometry = exports.CustomToneMapping = exports.CustomBlending = exports.CurvePath = exports.CullFaceNone = exports.CullFaceFrontBack = exports.CullFaceFront = exports.CullFaceBack = exports.CubicBezierCurve3 = exports.CubicBezierCurve = exports.CubeUVRefractionMapping = exports.CubeUVReflectionMapping = exports.CubeTextureLoader = exports.CubeTexture = exports.CubeRefractionMapping = exports.CubeReflectionMapping = exports.CubeCamera = exports.ConeGeometry = exports.ConeBufferGeometry = exports.CompressedTexture = exports.ColorKeyframeTrack = exports.Color = exports.Clock = exports.ClampToEdgeWrapping = exports.CircleGeometry = exports.CircleBufferGeometry = exports.CineonToneMapping = exports.CatmullRomCurve3 = exports.CanvasTexture = exports.CameraHelper = exports.Cache = exports.ByteType = exports.BufferGeometryLoader = exports.BoxHelper = exports.BoxGeometry = exports.BoxBufferGeometry = exports.Box3Helper = exports.Box3 = exports.Box2 = exports.BooleanKeyframeTrack = exports.BasicShadowMap = exports.BasicDepthPacking = exports.BackSide = exports.AxesHelper = exports.AudioLoader = exports.AudioListener = exports.AudioContext = exports.AudioAnalyser = exports.Audio = exports.ArrowHelper = exports.ArcCurve = exports.AnimationUtils = exports.AnimationObjectGroup = exports.AnimationMixer = exports.AnimationLoader = exports.AnimationClip = exports.AmbientLightProbe = exports.AmbientLight = exports.AlwaysStencilFunc = exports.AlwaysDepth = exports.AlphaFormat = exports.AdditiveBlending = exports.AdditiveAnimationBlendMode = exports.AddOperation = exports.AddEquation = exports.ACESFilmicToneMapping = void 0;
+exports.ObjectLoader = exports.NumberKeyframeTrack = exports.NotEqualStencilFunc = exports.NotEqualDepth = exports.NormalBlending = exports.NormalAnimationBlendMode = exports.NoToneMapping = exports.NoColors = exports.NoBlending = exports.NeverStencilFunc = exports.NeverDepth = exports.NearestMipmapNearestFilter = exports.NearestMipmapLinearFilter = exports.NearestMipMapNearestFilter = exports.NearestMipMapLinearFilter = exports.NearestFilter = exports.MultiplyOperation = exports.MultiplyBlending = exports.MixOperation = exports.MirroredRepeatWrapping = exports.MinEquation = exports.MeshToonMaterial = exports.MeshPhongMaterial = exports.MeshNormalMaterial = exports.MeshMatcapMaterial = exports.MeshLambertMaterial = exports.MeshDistanceMaterial = exports.MeshDepthMaterial = exports.MeshBasicMaterial = exports.MaxEquation = exports.Matrix4 = exports.Matrix3 = exports.MathUtils = exports.Math = exports.MaterialLoader = exports.MOUSE = exports.LuminanceFormat = exports.LuminanceAlphaFormat = exports.LoopRepeat = exports.LoopPingPong = exports.LoopOnce = exports.LogLuvEncoding = exports.LoaderUtils = exports.LinearToneMapping = exports.LinearMipmapNearestFilter = exports.LinearMipmapLinearFilter = exports.LinearMipMapNearestFilter = exports.LinearMipMapLinearFilter = exports.LinearFilter = exports.LinearEncoding = exports.LineStrip = exports.LinePieces = exports.LineLoop = exports.LineDashedMaterial = exports.LineCurve3 = exports.LineCurve = exports.LineBasicMaterial = exports.Line3 = exports.LightProbe = exports.Light = exports.LessStencilFunc = exports.LessEqualStencilFunc = exports.LessEqualDepth = exports.LessDepth = exports.Layers = exports.LatheGeometry = exports.LatheBufferGeometry = exports.LOD = exports.KeyframeTrack = exports.KeepStencilOp = exports.InvertStencilOp = exports.InterpolateSmooth = exports.InterpolateLinear = exports.InterpolateDiscrete = exports.IntType = exports.IncrementWrapStencilOp = exports.IncrementStencilOp = exports.ImageUtils = exports.ImageLoader = exports.IcosahedronGeometry = exports.IcosahedronBufferGeometry = exports.HemisphereLightProbe = exports.HemisphereLightHelper = exports.HemisphereLight = exports.HalfFloatType = exports.Group = exports.GridHelper = exports.GreaterStencilFunc = exports.GreaterEqualStencilFunc = exports.GreaterEqualDepth = exports.GreaterDepth = exports.GammaEncoding = exports.GLSL3 = exports.GLSL1 = exports.Frustum = exports.FrontSide = exports.FontLoader = exports.Font = exports.FogExp2 = exports.Fog = void 0;
+exports.ShapeBufferGeometry = exports.Shape = exports.ShadowMaterial = exports.ShaderLib = exports.ShaderChunk = exports.SceneUtils = exports.Scene = exports.SRGB8_ALPHA8_ASTC_8x8_Format = exports.SRGB8_ALPHA8_ASTC_8x6_Format = exports.SRGB8_ALPHA8_ASTC_8x5_Format = exports.SRGB8_ALPHA8_ASTC_6x6_Format = exports.SRGB8_ALPHA8_ASTC_6x5_Format = exports.SRGB8_ALPHA8_ASTC_5x5_Format = exports.SRGB8_ALPHA8_ASTC_5x4_Format = exports.SRGB8_ALPHA8_ASTC_4x4_Format = exports.SRGB8_ALPHA8_ASTC_12x12_Format = exports.SRGB8_ALPHA8_ASTC_12x10_Format = exports.SRGB8_ALPHA8_ASTC_10x8_Format = exports.SRGB8_ALPHA8_ASTC_10x6_Format = exports.SRGB8_ALPHA8_ASTC_10x5_Format = exports.SRGB8_ALPHA8_ASTC_10x10_Format = exports.RingGeometry = exports.RingBufferGeometry = exports.ReverseSubtractEquation = exports.ReplaceStencilOp = exports.RepeatWrapping = exports.ReinhardToneMapping = exports.RedIntegerFormat = exports.RedFormat = exports.RectAreaLight = exports.Ray = exports.RawShaderMaterial = exports.RGIntegerFormat = exports.RGFormat = exports.RGB_S3TC_DXT1_Format = exports.RGB_PVRTC_4BPPV1_Format = exports.RGB_PVRTC_2BPPV1_Format = exports.RGB_ETC2_Format = exports.RGB_ETC1_Format = exports.RGBM7Encoding = exports.RGBM16Encoding = exports.RGBIntegerFormat = exports.RGBFormat = exports.RGBEFormat = exports.RGBEEncoding = exports.RGBDEncoding = exports.RGBA_S3TC_DXT5_Format = exports.RGBA_S3TC_DXT3_Format = exports.RGBA_S3TC_DXT1_Format = exports.RGBA_PVRTC_4BPPV1_Format = exports.RGBA_PVRTC_2BPPV1_Format = exports.RGBA_ETC2_EAC_Format = exports.RGBA_BPTC_Format = exports.RGBA_ASTC_8x8_Format = exports.RGBA_ASTC_8x6_Format = exports.RGBA_ASTC_8x5_Format = exports.RGBA_ASTC_6x6_Format = exports.RGBA_ASTC_6x5_Format = exports.RGBA_ASTC_5x5_Format = exports.RGBA_ASTC_5x4_Format = exports.RGBA_ASTC_4x4_Format = exports.RGBA_ASTC_12x12_Format = exports.RGBA_ASTC_12x10_Format = exports.RGBA_ASTC_10x8_Format = exports.RGBA_ASTC_10x6_Format = exports.RGBA_ASTC_10x5_Format = exports.RGBA_ASTC_10x10_Format = exports.RGBAIntegerFormat = exports.RGBAFormat = exports.RGBADepthPacking = exports.REVISION = exports.QuaternionKeyframeTrack = exports.Quaternion = exports.QuadraticBezierCurve3 = exports.QuadraticBezierCurve = exports.PropertyMixer = exports.PositionalAudio = exports.PolyhedronGeometry = exports.PolyhedronBufferGeometry = exports.PolarGridHelper = exports.PointsMaterial = exports.PointLightHelper = exports.PointLight = exports.PlaneHelper = exports.PlaneGeometry = exports.PlaneBufferGeometry = exports.Plane = exports.Path = exports.PMREMGenerator = exports.PCFSoftShadowMap = exports.PCFShadowMap = exports.OrthographicCamera = exports.OneMinusSrcColorFactor = exports.OneMinusSrcAlphaFactor = exports.OneMinusDstColorFactor = exports.OneMinusDstAlphaFactor = exports.OneFactor = exports.OctahedronGeometry = exports.OctahedronBufferGeometry = exports.ObjectSpaceNormalMap = void 0;
+exports.sRGBEncoding = exports.ZeroStencilOp = exports.ZeroSlopeEnding = exports.ZeroFactor = exports.ZeroCurvatureEnding = exports.WrapAroundEnding = exports.WireframeGeometry = exports.WebGLRenderTarget = exports.WebGLMultisampleRenderTarget = exports.WebGLCubeRenderTarget = exports.WebGL1Renderer = exports.VideoTexture = exports.VertexColors = exports.VectorKeyframeTrack = exports.Vector4 = exports.Vector3 = exports.Vector2 = exports.VSMShadowMap = exports.UnsignedShortType = exports.UnsignedShort565Type = exports.UnsignedShort5551Type = exports.UnsignedShort4444Type = exports.UnsignedIntType = exports.UnsignedInt248Type = exports.UnsignedByteType = exports.UniformsUtils = exports.UniformsLib = exports.Uniform = exports.UVMapping = exports.TubeGeometry = exports.TubeBufferGeometry = exports.TrianglesDrawMode = exports.TriangleStripDrawMode = exports.TriangleFanDrawMode = exports.Triangle = exports.TorusKnotGeometry = exports.TorusKnotBufferGeometry = exports.TorusGeometry = exports.TorusBufferGeometry = exports.Texture = exports.TextGeometry = exports.TextBufferGeometry = exports.TetrahedronGeometry = exports.TetrahedronBufferGeometry = exports.TangentSpaceNormalMap = exports.TOUCH = exports.SubtractiveBlending = exports.SubtractEquation = exports.StringKeyframeTrack = exports.StreamReadUsage = exports.StreamDrawUsage = exports.StreamCopyUsage = exports.StereoCamera = exports.StaticReadUsage = exports.StaticDrawUsage = exports.StaticCopyUsage = exports.SrcColorFactor = exports.SrcAlphaSaturateFactor = exports.SrcAlphaFactor = exports.SpriteMaterial = exports.Sprite = exports.SpotLightHelper = exports.SpotLight = exports.SplineCurve = exports.SphericalHarmonics3 = exports.Spherical = exports.SphereGeometry = exports.SphereBufferGeometry = exports.Sphere = exports.SmoothShading = exports.SkeletonHelper = exports.Skeleton = exports.ShortType = exports.ShapeUtils = exports.ShapePath = exports.ShapeGeometry = void 0;
+// threejs.org/license
+const REVISION = '126';
+exports.REVISION = REVISION;
+const MOUSE = {
+  LEFT: 0,
+  MIDDLE: 1,
+  RIGHT: 2,
+  ROTATE: 0,
+  DOLLY: 1,
+  PAN: 2
+};
+exports.MOUSE = MOUSE;
+const TOUCH = {
+  ROTATE: 0,
+  PAN: 1,
+  DOLLY_PAN: 2,
+  DOLLY_ROTATE: 3
+};
+exports.TOUCH = TOUCH;
+const CullFaceNone = 0;
+exports.CullFaceNone = CullFaceNone;
+const CullFaceBack = 1;
+exports.CullFaceBack = CullFaceBack;
+const CullFaceFront = 2;
+exports.CullFaceFront = CullFaceFront;
+const CullFaceFrontBack = 3;
+exports.CullFaceFrontBack = CullFaceFrontBack;
+const BasicShadowMap = 0;
+exports.BasicShadowMap = BasicShadowMap;
+const PCFShadowMap = 1;
+exports.PCFShadowMap = PCFShadowMap;
+const PCFSoftShadowMap = 2;
+exports.PCFSoftShadowMap = PCFSoftShadowMap;
+const VSMShadowMap = 3;
+exports.VSMShadowMap = VSMShadowMap;
+const FrontSide = 0;
+exports.FrontSide = FrontSide;
+const BackSide = 1;
+exports.BackSide = BackSide;
+const DoubleSide = 2;
+exports.DoubleSide = DoubleSide;
+const FlatShading = 1;
+exports.FlatShading = FlatShading;
+const SmoothShading = 2;
+exports.SmoothShading = SmoothShading;
+const NoBlending = 0;
+exports.NoBlending = NoBlending;
+const NormalBlending = 1;
+exports.NormalBlending = NormalBlending;
+const AdditiveBlending = 2;
+exports.AdditiveBlending = AdditiveBlending;
+const SubtractiveBlending = 3;
+exports.SubtractiveBlending = SubtractiveBlending;
+const MultiplyBlending = 4;
+exports.MultiplyBlending = MultiplyBlending;
+const CustomBlending = 5;
+exports.CustomBlending = CustomBlending;
+const AddEquation = 100;
+exports.AddEquation = AddEquation;
+const SubtractEquation = 101;
+exports.SubtractEquation = SubtractEquation;
+const ReverseSubtractEquation = 102;
+exports.ReverseSubtractEquation = ReverseSubtractEquation;
+const MinEquation = 103;
+exports.MinEquation = MinEquation;
+const MaxEquation = 104;
+exports.MaxEquation = MaxEquation;
+const ZeroFactor = 200;
+exports.ZeroFactor = ZeroFactor;
+const OneFactor = 201;
+exports.OneFactor = OneFactor;
+const SrcColorFactor = 202;
+exports.SrcColorFactor = SrcColorFactor;
+const OneMinusSrcColorFactor = 203;
+exports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;
+const SrcAlphaFactor = 204;
+exports.SrcAlphaFactor = SrcAlphaFactor;
+const OneMinusSrcAlphaFactor = 205;
+exports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;
+const DstAlphaFactor = 206;
+exports.DstAlphaFactor = DstAlphaFactor;
+const OneMinusDstAlphaFactor = 207;
+exports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;
+const DstColorFactor = 208;
+exports.DstColorFactor = DstColorFactor;
+const OneMinusDstColorFactor = 209;
+exports.OneMinusDstColorFactor = OneMinusDstColorFactor;
+const SrcAlphaSaturateFactor = 210;
+exports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;
+const NeverDepth = 0;
+exports.NeverDepth = NeverDepth;
+const AlwaysDepth = 1;
+exports.AlwaysDepth = AlwaysDepth;
+const LessDepth = 2;
+exports.LessDepth = LessDepth;
+const LessEqualDepth = 3;
+exports.LessEqualDepth = LessEqualDepth;
+const EqualDepth = 4;
+exports.EqualDepth = EqualDepth;
+const GreaterEqualDepth = 5;
+exports.GreaterEqualDepth = GreaterEqualDepth;
+const GreaterDepth = 6;
+exports.GreaterDepth = GreaterDepth;
+const NotEqualDepth = 7;
+exports.NotEqualDepth = NotEqualDepth;
+const MultiplyOperation = 0;
+exports.MultiplyOperation = MultiplyOperation;
+const MixOperation = 1;
+exports.MixOperation = MixOperation;
+const AddOperation = 2;
+exports.AddOperation = AddOperation;
+const NoToneMapping = 0;
+exports.NoToneMapping = NoToneMapping;
+const LinearToneMapping = 1;
+exports.LinearToneMapping = LinearToneMapping;
+const ReinhardToneMapping = 2;
+exports.ReinhardToneMapping = ReinhardToneMapping;
+const CineonToneMapping = 3;
+exports.CineonToneMapping = CineonToneMapping;
+const ACESFilmicToneMapping = 4;
+exports.ACESFilmicToneMapping = ACESFilmicToneMapping;
+const CustomToneMapping = 5;
+exports.CustomToneMapping = CustomToneMapping;
+const UVMapping = 300;
+exports.UVMapping = UVMapping;
+const CubeReflectionMapping = 301;
+exports.CubeReflectionMapping = CubeReflectionMapping;
+const CubeRefractionMapping = 302;
+exports.CubeRefractionMapping = CubeRefractionMapping;
+const EquirectangularReflectionMapping = 303;
+exports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;
+const EquirectangularRefractionMapping = 304;
+exports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;
+const CubeUVReflectionMapping = 306;
+exports.CubeUVReflectionMapping = CubeUVReflectionMapping;
+const CubeUVRefractionMapping = 307;
+exports.CubeUVRefractionMapping = CubeUVRefractionMapping;
+const RepeatWrapping = 1000;
+exports.RepeatWrapping = RepeatWrapping;
+const ClampToEdgeWrapping = 1001;
+exports.ClampToEdgeWrapping = ClampToEdgeWrapping;
+const MirroredRepeatWrapping = 1002;
+exports.MirroredRepeatWrapping = MirroredRepeatWrapping;
+const NearestFilter = 1003;
+exports.NearestFilter = NearestFilter;
+const NearestMipmapNearestFilter = 1004;
+exports.NearestMipmapNearestFilter = NearestMipmapNearestFilter;
+const NearestMipMapNearestFilter = 1004;
+exports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;
+const NearestMipmapLinearFilter = 1005;
+exports.NearestMipmapLinearFilter = NearestMipmapLinearFilter;
+const NearestMipMapLinearFilter = 1005;
+exports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;
+const LinearFilter = 1006;
+exports.LinearFilter = LinearFilter;
+const LinearMipmapNearestFilter = 1007;
+exports.LinearMipmapNearestFilter = LinearMipmapNearestFilter;
+const LinearMipMapNearestFilter = 1007;
+exports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;
+const LinearMipmapLinearFilter = 1008;
+exports.LinearMipmapLinearFilter = LinearMipmapLinearFilter;
+const LinearMipMapLinearFilter = 1008;
+exports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;
+const UnsignedByteType = 1009;
+exports.UnsignedByteType = UnsignedByteType;
+const ByteType = 1010;
+exports.ByteType = ByteType;
+const ShortType = 1011;
+exports.ShortType = ShortType;
+const UnsignedShortType = 1012;
+exports.UnsignedShortType = UnsignedShortType;
+const IntType = 1013;
+exports.IntType = IntType;
+const UnsignedIntType = 1014;
+exports.UnsignedIntType = UnsignedIntType;
+const FloatType = 1015;
+exports.FloatType = FloatType;
+const HalfFloatType = 1016;
+exports.HalfFloatType = HalfFloatType;
+const UnsignedShort4444Type = 1017;
+exports.UnsignedShort4444Type = UnsignedShort4444Type;
+const UnsignedShort5551Type = 1018;
+exports.UnsignedShort5551Type = UnsignedShort5551Type;
+const UnsignedShort565Type = 1019;
+exports.UnsignedShort565Type = UnsignedShort565Type;
+const UnsignedInt248Type = 1020;
+exports.UnsignedInt248Type = UnsignedInt248Type;
+const AlphaFormat = 1021;
+exports.AlphaFormat = AlphaFormat;
+const RGBFormat = 1022;
+exports.RGBFormat = RGBFormat;
+const RGBAFormat = 1023;
+exports.RGBAFormat = RGBAFormat;
+const LuminanceFormat = 1024;
+exports.LuminanceFormat = LuminanceFormat;
+const LuminanceAlphaFormat = 1025;
+exports.LuminanceAlphaFormat = LuminanceAlphaFormat;
+const RGBEFormat = RGBAFormat;
+exports.RGBEFormat = RGBEFormat;
+const DepthFormat = 1026;
+exports.DepthFormat = DepthFormat;
+const DepthStencilFormat = 1027;
+exports.DepthStencilFormat = DepthStencilFormat;
+const RedFormat = 1028;
+exports.RedFormat = RedFormat;
+const RedIntegerFormat = 1029;
+exports.RedIntegerFormat = RedIntegerFormat;
+const RGFormat = 1030;
+exports.RGFormat = RGFormat;
+const RGIntegerFormat = 1031;
+exports.RGIntegerFormat = RGIntegerFormat;
+const RGBIntegerFormat = 1032;
+exports.RGBIntegerFormat = RGBIntegerFormat;
+const RGBAIntegerFormat = 1033;
+exports.RGBAIntegerFormat = RGBAIntegerFormat;
+const RGB_S3TC_DXT1_Format = 33776;
+exports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;
+const RGBA_S3TC_DXT1_Format = 33777;
+exports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;
+const RGBA_S3TC_DXT3_Format = 33778;
+exports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;
+const RGBA_S3TC_DXT5_Format = 33779;
+exports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;
+const RGB_PVRTC_4BPPV1_Format = 35840;
+exports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;
+const RGB_PVRTC_2BPPV1_Format = 35841;
+exports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;
+const RGBA_PVRTC_4BPPV1_Format = 35842;
+exports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;
+const RGBA_PVRTC_2BPPV1_Format = 35843;
+exports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;
+const RGB_ETC1_Format = 36196;
+exports.RGB_ETC1_Format = RGB_ETC1_Format;
+const RGB_ETC2_Format = 37492;
+exports.RGB_ETC2_Format = RGB_ETC2_Format;
+const RGBA_ETC2_EAC_Format = 37496;
+exports.RGBA_ETC2_EAC_Format = RGBA_ETC2_EAC_Format;
+const RGBA_ASTC_4x4_Format = 37808;
+exports.RGBA_ASTC_4x4_Format = RGBA_ASTC_4x4_Format;
+const RGBA_ASTC_5x4_Format = 37809;
+exports.RGBA_ASTC_5x4_Format = RGBA_ASTC_5x4_Format;
+const RGBA_ASTC_5x5_Format = 37810;
+exports.RGBA_ASTC_5x5_Format = RGBA_ASTC_5x5_Format;
+const RGBA_ASTC_6x5_Format = 37811;
+exports.RGBA_ASTC_6x5_Format = RGBA_ASTC_6x5_Format;
+const RGBA_ASTC_6x6_Format = 37812;
+exports.RGBA_ASTC_6x6_Format = RGBA_ASTC_6x6_Format;
+const RGBA_ASTC_8x5_Format = 37813;
+exports.RGBA_ASTC_8x5_Format = RGBA_ASTC_8x5_Format;
+const RGBA_ASTC_8x6_Format = 37814;
+exports.RGBA_ASTC_8x6_Format = RGBA_ASTC_8x6_Format;
+const RGBA_ASTC_8x8_Format = 37815;
+exports.RGBA_ASTC_8x8_Format = RGBA_ASTC_8x8_Format;
+const RGBA_ASTC_10x5_Format = 37816;
+exports.RGBA_ASTC_10x5_Format = RGBA_ASTC_10x5_Format;
+const RGBA_ASTC_10x6_Format = 37817;
+exports.RGBA_ASTC_10x6_Format = RGBA_ASTC_10x6_Format;
+const RGBA_ASTC_10x8_Format = 37818;
+exports.RGBA_ASTC_10x8_Format = RGBA_ASTC_10x8_Format;
+const RGBA_ASTC_10x10_Format = 37819;
+exports.RGBA_ASTC_10x10_Format = RGBA_ASTC_10x10_Format;
+const RGBA_ASTC_12x10_Format = 37820;
+exports.RGBA_ASTC_12x10_Format = RGBA_ASTC_12x10_Format;
+const RGBA_ASTC_12x12_Format = 37821;
+exports.RGBA_ASTC_12x12_Format = RGBA_ASTC_12x12_Format;
+const RGBA_BPTC_Format = 36492;
+exports.RGBA_BPTC_Format = RGBA_BPTC_Format;
+const SRGB8_ALPHA8_ASTC_4x4_Format = 37840;
+exports.SRGB8_ALPHA8_ASTC_4x4_Format = SRGB8_ALPHA8_ASTC_4x4_Format;
+const SRGB8_ALPHA8_ASTC_5x4_Format = 37841;
+exports.SRGB8_ALPHA8_ASTC_5x4_Format = SRGB8_ALPHA8_ASTC_5x4_Format;
+const SRGB8_ALPHA8_ASTC_5x5_Format = 37842;
+exports.SRGB8_ALPHA8_ASTC_5x5_Format = SRGB8_ALPHA8_ASTC_5x5_Format;
+const SRGB8_ALPHA8_ASTC_6x5_Format = 37843;
+exports.SRGB8_ALPHA8_ASTC_6x5_Format = SRGB8_ALPHA8_ASTC_6x5_Format;
+const SRGB8_ALPHA8_ASTC_6x6_Format = 37844;
+exports.SRGB8_ALPHA8_ASTC_6x6_Format = SRGB8_ALPHA8_ASTC_6x6_Format;
+const SRGB8_ALPHA8_ASTC_8x5_Format = 37845;
+exports.SRGB8_ALPHA8_ASTC_8x5_Format = SRGB8_ALPHA8_ASTC_8x5_Format;
+const SRGB8_ALPHA8_ASTC_8x6_Format = 37846;
+exports.SRGB8_ALPHA8_ASTC_8x6_Format = SRGB8_ALPHA8_ASTC_8x6_Format;
+const SRGB8_ALPHA8_ASTC_8x8_Format = 37847;
+exports.SRGB8_ALPHA8_ASTC_8x8_Format = SRGB8_ALPHA8_ASTC_8x8_Format;
+const SRGB8_ALPHA8_ASTC_10x5_Format = 37848;
+exports.SRGB8_ALPHA8_ASTC_10x5_Format = SRGB8_ALPHA8_ASTC_10x5_Format;
+const SRGB8_ALPHA8_ASTC_10x6_Format = 37849;
+exports.SRGB8_ALPHA8_ASTC_10x6_Format = SRGB8_ALPHA8_ASTC_10x6_Format;
+const SRGB8_ALPHA8_ASTC_10x8_Format = 37850;
+exports.SRGB8_ALPHA8_ASTC_10x8_Format = SRGB8_ALPHA8_ASTC_10x8_Format;
+const SRGB8_ALPHA8_ASTC_10x10_Format = 37851;
+exports.SRGB8_ALPHA8_ASTC_10x10_Format = SRGB8_ALPHA8_ASTC_10x10_Format;
+const SRGB8_ALPHA8_ASTC_12x10_Format = 37852;
+exports.SRGB8_ALPHA8_ASTC_12x10_Format = SRGB8_ALPHA8_ASTC_12x10_Format;
+const SRGB8_ALPHA8_ASTC_12x12_Format = 37853;
+exports.SRGB8_ALPHA8_ASTC_12x12_Format = SRGB8_ALPHA8_ASTC_12x12_Format;
+const LoopOnce = 2200;
+exports.LoopOnce = LoopOnce;
+const LoopRepeat = 2201;
+exports.LoopRepeat = LoopRepeat;
+const LoopPingPong = 2202;
+exports.LoopPingPong = LoopPingPong;
+const InterpolateDiscrete = 2300;
+exports.InterpolateDiscrete = InterpolateDiscrete;
+const InterpolateLinear = 2301;
+exports.InterpolateLinear = InterpolateLinear;
+const InterpolateSmooth = 2302;
+exports.InterpolateSmooth = InterpolateSmooth;
+const ZeroCurvatureEnding = 2400;
+exports.ZeroCurvatureEnding = ZeroCurvatureEnding;
+const ZeroSlopeEnding = 2401;
+exports.ZeroSlopeEnding = ZeroSlopeEnding;
+const WrapAroundEnding = 2402;
+exports.WrapAroundEnding = WrapAroundEnding;
+const NormalAnimationBlendMode = 2500;
+exports.NormalAnimationBlendMode = NormalAnimationBlendMode;
+const AdditiveAnimationBlendMode = 2501;
+exports.AdditiveAnimationBlendMode = AdditiveAnimationBlendMode;
+const TrianglesDrawMode = 0;
+exports.TrianglesDrawMode = TrianglesDrawMode;
+const TriangleStripDrawMode = 1;
+exports.TriangleStripDrawMode = TriangleStripDrawMode;
+const TriangleFanDrawMode = 2;
+exports.TriangleFanDrawMode = TriangleFanDrawMode;
+const LinearEncoding = 3000;
+exports.LinearEncoding = LinearEncoding;
+const sRGBEncoding = 3001;
+exports.sRGBEncoding = sRGBEncoding;
+const GammaEncoding = 3007;
+exports.GammaEncoding = GammaEncoding;
+const RGBEEncoding = 3002;
+exports.RGBEEncoding = RGBEEncoding;
+const LogLuvEncoding = 3003;
+exports.LogLuvEncoding = LogLuvEncoding;
+const RGBM7Encoding = 3004;
+exports.RGBM7Encoding = RGBM7Encoding;
+const RGBM16Encoding = 3005;
+exports.RGBM16Encoding = RGBM16Encoding;
+const RGBDEncoding = 3006;
+exports.RGBDEncoding = RGBDEncoding;
+const BasicDepthPacking = 3200;
+exports.BasicDepthPacking = BasicDepthPacking;
+const RGBADepthPacking = 3201;
+exports.RGBADepthPacking = RGBADepthPacking;
+const TangentSpaceNormalMap = 0;
+exports.TangentSpaceNormalMap = TangentSpaceNormalMap;
+const ObjectSpaceNormalMap = 1;
+exports.ObjectSpaceNormalMap = ObjectSpaceNormalMap;
+const ZeroStencilOp = 0;
+exports.ZeroStencilOp = ZeroStencilOp;
+const KeepStencilOp = 7680;
+exports.KeepStencilOp = KeepStencilOp;
+const ReplaceStencilOp = 7681;
+exports.ReplaceStencilOp = ReplaceStencilOp;
+const IncrementStencilOp = 7682;
+exports.IncrementStencilOp = IncrementStencilOp;
+const DecrementStencilOp = 7683;
+exports.DecrementStencilOp = DecrementStencilOp;
+const IncrementWrapStencilOp = 34055;
+exports.IncrementWrapStencilOp = IncrementWrapStencilOp;
+const DecrementWrapStencilOp = 34056;
+exports.DecrementWrapStencilOp = DecrementWrapStencilOp;
+const InvertStencilOp = 5386;
+exports.InvertStencilOp = InvertStencilOp;
+const NeverStencilFunc = 512;
+exports.NeverStencilFunc = NeverStencilFunc;
+const LessStencilFunc = 513;
+exports.LessStencilFunc = LessStencilFunc;
+const EqualStencilFunc = 514;
+exports.EqualStencilFunc = EqualStencilFunc;
+const LessEqualStencilFunc = 515;
+exports.LessEqualStencilFunc = LessEqualStencilFunc;
+const GreaterStencilFunc = 516;
+exports.GreaterStencilFunc = GreaterStencilFunc;
+const NotEqualStencilFunc = 517;
+exports.NotEqualStencilFunc = NotEqualStencilFunc;
+const GreaterEqualStencilFunc = 518;
+exports.GreaterEqualStencilFunc = GreaterEqualStencilFunc;
+const AlwaysStencilFunc = 519;
+exports.AlwaysStencilFunc = AlwaysStencilFunc;
+const StaticDrawUsage = 35044;
+exports.StaticDrawUsage = StaticDrawUsage;
+const DynamicDrawUsage = 35048;
+exports.DynamicDrawUsage = DynamicDrawUsage;
+const StreamDrawUsage = 35040;
+exports.StreamDrawUsage = StreamDrawUsage;
+const StaticReadUsage = 35045;
+exports.StaticReadUsage = StaticReadUsage;
+const DynamicReadUsage = 35049;
+exports.DynamicReadUsage = DynamicReadUsage;
+const StreamReadUsage = 35041;
+exports.StreamReadUsage = StreamReadUsage;
+const StaticCopyUsage = 35046;
+exports.StaticCopyUsage = StaticCopyUsage;
+const DynamicCopyUsage = 35050;
+exports.DynamicCopyUsage = DynamicCopyUsage;
+const StreamCopyUsage = 35042;
+exports.StreamCopyUsage = StreamCopyUsage;
+const GLSL1 = '100';
+exports.GLSL1 = GLSL1;
+const GLSL3 = '300 es';
+/**
+ * https://github.com/mrdoob/eventdispatcher.js/
+ */
+
+exports.GLSL3 = GLSL3;
+
+function EventDispatcher() {}
+
+Object.assign(EventDispatcher.prototype, {
+  addEventListener: function (type, listener) {
+    if (this._listeners === undefined) this._listeners = {};
+    const listeners = this._listeners;
+
+    if (listeners[type] === undefined) {
+      listeners[type] = [];
+    }
+
+    if (listeners[type].indexOf(listener) === -1) {
+      listeners[type].push(listener);
+    }
+  },
+  hasEventListener: function (type, listener) {
+    if (this._listeners === undefined) return false;
+    const listeners = this._listeners;
+    return listeners[type] !== undefined && listeners[type].indexOf(listener) !== -1;
+  },
+  removeEventListener: function (type, listener) {
+    if (this._listeners === undefined) return;
+    const listeners = this._listeners;
+    const listenerArray = listeners[type];
+
+    if (listenerArray !== undefined) {
+      const index = listenerArray.indexOf(listener);
+
+      if (index !== -1) {
+        listenerArray.splice(index, 1);
+      }
+    }
+  },
+  dispatchEvent: function (event) {
+    if (this._listeners === undefined) return;
+    const listeners = this._listeners;
+    const listenerArray = listeners[event.type];
+
+    if (listenerArray !== undefined) {
+      event.target = this; // Make a copy, in case listeners are removed while iterating.
+
+      const array = listenerArray.slice(0);
+
+      for (let i = 0, l = array.length; i < l; i++) {
+        array[i].call(this, event);
+      }
+    }
+  }
+});
+const _lut = [];
+
+for (let i = 0; i < 256; i++) {
+  _lut[i] = (i < 16 ? '0' : '') + i.toString(16);
+}
+
+let _seed = 1234567;
+const MathUtils = {
+  DEG2RAD: Math.PI / 180,
+  RAD2DEG: 180 / Math.PI,
+  generateUUID: function () {
+    // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
+    const d0 = Math.random() * 0xffffffff | 0;
+    const d1 = Math.random() * 0xffffffff | 0;
+    const d2 = Math.random() * 0xffffffff | 0;
+    const d3 = Math.random() * 0xffffffff | 0;
+    const uuid = _lut[d0 & 0xff] + _lut[d0 >> 8 & 0xff] + _lut[d0 >> 16 & 0xff] + _lut[d0 >> 24 & 0xff] + '-' + _lut[d1 & 0xff] + _lut[d1 >> 8 & 0xff] + '-' + _lut[d1 >> 16 & 0x0f | 0x40] + _lut[d1 >> 24 & 0xff] + '-' + _lut[d2 & 0x3f | 0x80] + _lut[d2 >> 8 & 0xff] + '-' + _lut[d2 >> 16 & 0xff] + _lut[d2 >> 24 & 0xff] + _lut[d3 & 0xff] + _lut[d3 >> 8 & 0xff] + _lut[d3 >> 16 & 0xff] + _lut[d3 >> 24 & 0xff]; // .toUpperCase() here flattens concatenated strings to save heap memory space.
+
+    return uuid.toUpperCase();
+  },
+  clamp: function (value, min, max) {
+    return Math.max(min, Math.min(max, value));
+  },
+  // compute euclidian modulo of m % n
+  // https://en.wikipedia.org/wiki/Modulo_operation
+  euclideanModulo: function (n, m) {
+    return (n % m + m) % m;
+  },
+  // Linear mapping from range <a1, a2> to range <b1, b2>
+  mapLinear: function (x, a1, a2, b1, b2) {
+    return b1 + (x - a1) * (b2 - b1) / (a2 - a1);
+  },
+  // https://en.wikipedia.org/wiki/Linear_interpolation
+  lerp: function (x, y, t) {
+    return (1 - t) * x + t * y;
+  },
+  // http://www.rorydriscoll.com/2016/03/07/frame-rate-independent-damping-using-lerp/
+  damp: function (x, y, lambda, dt) {
+    return MathUtils.lerp(x, y, 1 - Math.exp(-lambda * dt));
+  },
+  // https://www.desmos.com/calculator/vcsjnyz7x4
+  pingpong: function (x, length = 1) {
+    return length - Math.abs(MathUtils.euclideanModulo(x, length * 2) - length);
+  },
+  // http://en.wikipedia.org/wiki/Smoothstep
+  smoothstep: function (x, min, max) {
+    if (x <= min) return 0;
+    if (x >= max) return 1;
+    x = (x - min) / (max - min);
+    return x * x * (3 - 2 * x);
+  },
+  smootherstep: function (x, min, max) {
+    if (x <= min) return 0;
+    if (x >= max) return 1;
+    x = (x - min) / (max - min);
+    return x * x * x * (x * (x * 6 - 15) + 10);
+  },
+  // Random integer from <low, high> interval
+  randInt: function (low, high) {
+    return low + Math.floor(Math.random() * (high - low + 1));
+  },
+  // Random float from <low, high> interval
+  randFloat: function (low, high) {
+    return low + Math.random() * (high - low);
+  },
+  // Random float from <-range/2, range/2> interval
+  randFloatSpread: function (range) {
+    return range * (0.5 - Math.random());
+  },
+  // Deterministic pseudo-random float in the interval [ 0, 1 ]
+  seededRandom: function (s) {
+    if (s !== undefined) _seed = s % 2147483647; // Park-Miller algorithm
+
+    _seed = _seed * 16807 % 2147483647;
+    return (_seed - 1) / 2147483646;
+  },
+  degToRad: function (degrees) {
+    return degrees * MathUtils.DEG2RAD;
+  },
+  radToDeg: function (radians) {
+    return radians * MathUtils.RAD2DEG;
+  },
+  isPowerOfTwo: function (value) {
+    return (value & value - 1) === 0 && value !== 0;
+  },
+  ceilPowerOfTwo: function (value) {
+    return Math.pow(2, Math.ceil(Math.log(value) / Math.LN2));
+  },
+  floorPowerOfTwo: function (value) {
+    return Math.pow(2, Math.floor(Math.log(value) / Math.LN2));
+  },
+  setQuaternionFromProperEuler: function (q, a, b, c, order) {
+    // Intrinsic Proper Euler Angles - see https://en.wikipedia.org/wiki/Euler_angles
+    // rotations are applied to the axes in the order specified by 'order'
+    // rotation by angle 'a' is applied first, then by angle 'b', then by angle 'c'
+    // angles are in radians
+    const cos = Math.cos;
+    const sin = Math.sin;
+    const c2 = cos(b / 2);
+    const s2 = sin(b / 2);
+    const c13 = cos((a + c) / 2);
+    const s13 = sin((a + c) / 2);
+    const c1_3 = cos((a - c) / 2);
+    const s1_3 = sin((a - c) / 2);
+    const c3_1 = cos((c - a) / 2);
+    const s3_1 = sin((c - a) / 2);
+
+    switch (order) {
+      case 'XYX':
+        q.set(c2 * s13, s2 * c1_3, s2 * s1_3, c2 * c13);
+        break;
+
+      case 'YZY':
+        q.set(s2 * s1_3, c2 * s13, s2 * c1_3, c2 * c13);
+        break;
+
+      case 'ZXZ':
+        q.set(s2 * c1_3, s2 * s1_3, c2 * s13, c2 * c13);
+        break;
+
+      case 'XZX':
+        q.set(c2 * s13, s2 * s3_1, s2 * c3_1, c2 * c13);
+        break;
+
+      case 'YXY':
+        q.set(s2 * c3_1, c2 * s13, s2 * s3_1, c2 * c13);
+        break;
+
+      case 'ZYZ':
+        q.set(s2 * s3_1, s2 * c3_1, c2 * s13, c2 * c13);
+        break;
+
+      default:
+        console.warn('THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: ' + order);
+    }
+  }
+};
+exports.MathUtils = exports.Math = MathUtils;
+
+class Vector2 {
+  constructor(x = 0, y = 0) {
+    this.x = x;
+    this.y = y;
+  }
+
+  get width() {
+    return this.x;
+  }
+
+  set width(value) {
+    this.x = value;
+  }
+
+  get height() {
+    return this.y;
+  }
+
+  set height(value) {
+    this.y = value;
+  }
+
+  set(x, y) {
+    this.x = x;
+    this.y = y;
+    return this;
+  }
+
+  setScalar(scalar) {
+    this.x = scalar;
+    this.y = scalar;
+    return this;
+  }
+
+  setX(x) {
+    this.x = x;
+    return this;
+  }
+
+  setY(y) {
+    this.y = y;
+    return this;
+  }
+
+  setComponent(index, value) {
+    switch (index) {
+      case 0:
+        this.x = value;
+        break;
+
+      case 1:
+        this.y = value;
+        break;
+
+      default:
+        throw new Error('index is out of range: ' + index);
+    }
+
+    return this;
+  }
+
+  getComponent(index) {
+    switch (index) {
+      case 0:
+        return this.x;
+
+      case 1:
+        return this.y;
+
+      default:
+        throw new Error('index is out of range: ' + index);
+    }
+  }
+
+  clone() {
+    return new this.constructor(this.x, this.y);
+  }
+
+  copy(v) {
+    this.x = v.x;
+    this.y = v.y;
+    return this;
+  }
+
+  add(v, w) {
+    if (w !== undefined) {
+      console.warn('THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');
+      return this.addVectors(v, w);
+    }
+
+    this.x += v.x;
+    this.y += v.y;
+    return this;
+  }
+
+  addScalar(s) {
+    this.x += s;
+    this.y += s;
+    return this;
+  }
+
+  addVectors(a, b) {
+    this.x = a.x + b.x;
+    this.y = a.y + b.y;
+    return this;
+  }
+
+  addScaledVector(v, s) {
+    this.x += v.x * s;
+    this.y += v.y * s;
+    return this;
+  }
+
+  sub(v, w) {
+    if (w !== undefined) {
+      console.warn('THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');
+      return this.subVectors(v, w);
+    }
+
+    this.x -= v.x;
+    this.y -= v.y;
+    return this;
+  }
+
+  subScalar(s) {
+    this.x -= s;
+    this.y -= s;
+    return this;
+  }
+
+  subVectors(a, b) {
+    this.x = a.x - b.x;
+    this.y = a.y - b.y;
+    return this;
+  }
+
+  multiply(v) {
+    this.x *= v.x;
+    this.y *= v.y;
+    return this;
+  }
+
+  multiplyScalar(scalar) {
+    this.x *= scalar;
+    this.y *= scalar;
+    return this;
+  }
+
+  divide(v) {
+    this.x /= v.x;
+    this.y /= v.y;
+    return this;
+  }
+
+  divideScalar(scalar) {
+    return this.multiplyScalar(1 / scalar);
+  }
+
+  applyMatrix3(m) {
+    const x = this.x,
+          y = this.y;
+    const e = m.elements;
+    this.x = e[0] * x + e[3] * y + e[6];
+    this.y = e[1] * x + e[4] * y + e[7];
+    return this;
+  }
+
+  min(v) {
+    this.x = Math.min(this.x, v.x);
+    this.y = Math.min(this.y, v.y);
+    return this;
+  }
+
+  max(v) {
+    this.x = Math.max(this.x, v.x);
+    this.y = Math.max(this.y, v.y);
+    return this;
+  }
+
+  clamp(min, max) {
+    // assumes min < max, componentwise
+    this.x = Math.max(min.x, Math.min(max.x, this.x));
+    this.y = Math.max(min.y, Math.min(max.y, this.y));
+    return this;
+  }
+
+  clampScalar(minVal, maxVal) {
+    this.x = Math.max(minVal, Math.min(maxVal, this.x));
+    this.y = Math.max(minVal, Math.min(maxVal, this.y));
+    return this;
+  }
+
+  clampLength(min, max) {
+    const length = this.length();
+    return this.divideScalar(length || 1).multiplyScalar(Math.max(min, Math.min(max, length)));
+  }
+
+  floor() {
+    this.x = Math.floor(this.x);
+    this.y = Math.floor(this.y);
+    return this;
+  }
+
+  ceil() {
+    this.x = Math.ceil(this.x);
+    this.y = Math.ceil(this.y);
+    return this;
+  }
+
+  round() {
+    this.x = Math.round(this.x);
+    this.y = Math.round(this.y);
+    return this;
+  }
+
+  roundToZero() {
+    this.x = this.x < 0 ? Math.ceil(this.x) : Math.floor(this.x);
+    this.y = this.y < 0 ? Math.ceil(this.y) : Math.floor(this.y);
+    return this;
+  }
+
+  negate() {
+    this.x = -this.x;
+    this.y = -this.y;
+    return this;
+  }
+
+  dot(v) {
+    return this.x * v.x + this.y * v.y;
+  }
+
+  cross(v) {
+    return this.x * v.y - this.y * v.x;
+  }
+
+  lengthSq() {
+    return this.x * this.x + this.y * this.y;
+  }
+
+  length() {
+    return Math.sqrt(this.x * this.x + this.y * this.y);
+  }
+
+  manhattanLength() {
+    return Math.abs(this.x) + Math.abs(this.y);
+  }
+
+  normalize() {
+    return this.divideScalar(this.length() || 1);
+  }
+
+  angle() {
+    // computes the angle in radians with respect to the positive x-axis
+    const angle = Math.atan2(-this.y, -this.x) + Math.PI;
+    return angle;
+  }
+
+  distanceTo(v) {
+    return Math.sqrt(this.distanceToSquared(v));
+  }
+
+  distanceToSquared(v) {
+    const dx = this.x - v.x,
+          dy = this.y - v.y;
+    return dx * dx + dy * dy;
+  }
+
+  manhattanDistanceTo(v) {
+    return Math.abs(this.x - v.x) + Math.abs(this.y - v.y);
+  }
+
+  setLength(length) {
+    return this.normalize().multiplyScalar(length);
+  }
+
+  lerp(v, alpha) {
+    this.x += (v.x - this.x) * alpha;
+    this.y += (v.y - this.y) * alpha;
+    return this;
+  }
+
+  lerpVectors(v1, v2, alpha) {
+    this.x = v1.x + (v2.x - v1.x) * alpha;
+    this.y = v1.y + (v2.y - v1.y) * alpha;
+    return this;
+  }
+
+  equals(v) {
+    return v.x === this.x && v.y === this.y;
+  }
+
+  fromArray(array, offset = 0) {
+    this.x = array[offset];
+    this.y = array[offset + 1];
+    return this;
+  }
+
+  toArray(array = [], offset = 0) {
+    array[offset] = this.x;
+    array[offset + 1] = this.y;
+    return array;
+  }
+
+  fromBufferAttribute(attribute, index, offset) {
+    if (offset !== undefined) {
+      console.warn('THREE.Vector2: offset has been removed from .fromBufferAttribute().');
+    }
+
+    this.x = attribute.getX(index);
+    this.y = attribute.getY(index);
+    return this;
+  }
+
+  rotateAround(center, angle) {
+    const c = Math.cos(angle),
+          s = Math.sin(angle);
+    const x = this.x - center.x;
+    const y = this.y - center.y;
+    this.x = x * c - y * s + center.x;
+    this.y = x * s + y * c + center.y;
+    return this;
+  }
+
+  random() {
+    this.x = Math.random();
+    this.y = Math.random();
+    return this;
+  }
+
+}
+
+exports.Vector2 = Vector2;
+Vector2.prototype.isVector2 = true;
+
+class Matrix3 {
+  constructor() {
+    this.elements = [1, 0, 0, 0, 1, 0, 0, 0, 1];
+
+    if (arguments.length > 0) {
+      console.error('THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.');
+    }
+  }
+
+  set(n11, n12, n13, n21, n22, n23, n31, n32, n33) {
+    const te = this.elements;
+    te[0] = n11;
+    te[1] = n21;
+    te[2] = n31;
+    te[3] = n12;
+    te[4] = n22;
+    te[5] = n32;
+    te[6] = n13;
+    te[7] = n23;
+    te[8] = n33;
+    return this;
+  }
+
+  identity() {
+    this.set(1, 0, 0, 0, 1, 0, 0, 0, 1);
+    return this;
+  }
+
+  copy(m) {
+    const te = this.elements;
+    const me = m.elements;
+    te[0] = me[0];
+    te[1] = me[1];
+    te[2] = me[2];
+    te[3] = me[3];
+    te[4] = me[4];
+    te[5] = me[5];
+    te[6] = me[6];
+    te[7] = me[7];
+    te[8] = me[8];
+    return this;
+  }
+
+  extractBasis(xAxis, yAxis, zAxis) {
+    xAxis.setFromMatrix3Column(this, 0);
+    yAxis.setFromMatrix3Column(this, 1);
+    zAxis.setFromMatrix3Column(this, 2);
+    return this;
+  }
+
+  setFromMatrix4(m) {
+    const me = m.elements;
+    this.set(me[0], me[4], me[8], me[1], me[5], me[9], me[2], me[6], me[10]);
+    return this;
+  }
+
+  multiply(m) {
+    return this.multiplyMatrices(this, m);
+  }
+
+  premultiply(m) {
+    return this.multiplyMatrices(m, this);
+  }
+
+  multiplyMatrices(a, b) {
+    const ae = a.elements;
+    const be = b.elements;
+    const te = this.elements;
+    const a11 = ae[0],
+          a12 = ae[3],
+          a13 = ae[6];
+    const a21 = ae[1],
+          a22 = ae[4],
+          a23 = ae[7];
+    const a31 = ae[2],
+          a32 = ae[5],
+          a33 = ae[8];
+    const b11 = be[0],
+          b12 = be[3],
+          b13 = be[6];
+    const b21 = be[1],
+          b22 = be[4],
+          b23 = be[7];
+    const b31 = be[2],
+          b32 = be[5],
+          b33 = be[8];
+    te[0] = a11 * b11 + a12 * b21 + a13 * b31;
+    te[3] = a11 * b12 + a12 * b22 + a13 * b32;
+    te[6] = a11 * b13 + a12 * b23 + a13 * b33;
+    te[1] = a21 * b11 + a22 * b21 + a23 * b31;
+    te[4] = a21 * b12 + a22 * b22 + a23 * b32;
+    te[7] = a21 * b13 + a22 * b23 + a23 * b33;
+    te[2] = a31 * b11 + a32 * b21 + a33 * b31;
+    te[5] = a31 * b12 + a32 * b22 + a33 * b32;
+    te[8] = a31 * b13 + a32 * b23 + a33 * b33;
+    return this;
+  }
+
+  multiplyScalar(s) {
+    const te = this.elements;
+    te[0] *= s;
+    te[3] *= s;
+    te[6] *= s;
+    te[1] *= s;
+    te[4] *= s;
+    te[7] *= s;
+    te[2] *= s;
+    te[5] *= s;
+    te[8] *= s;
+    return this;
+  }
+
+  determinant() {
+    const te = this.elements;
+    const a = te[0],
+          b = te[1],
+          c = te[2],
+          d = te[3],
+          e = te[4],
+          f = te[5],
+          g = te[6],
+          h = te[7],
+          i = te[8];
+    return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;
+  }
+
+  invert() {
+    const te = this.elements,
+          n11 = te[0],
+          n21 = te[1],
+          n31 = te[2],
+          n12 = te[3],
+          n22 = te[4],
+          n32 = te[5],
+          n13 = te[6],
+          n23 = te[7],
+          n33 = te[8],
+          t11 = n33 * n22 - n32 * n23,
+          t12 = n32 * n13 - n33 * n12,
+          t13 = n23 * n12 - n22 * n13,
+          det = n11 * t11 + n21 * t12 + n31 * t13;
+    if (det === 0) return this.set(0, 0, 0, 0, 0, 0, 0, 0, 0);
+    const detInv = 1 / det;
+    te[0] = t11 * detInv;
+    te[1] = (n31 * n23 - n33 * n21) * detInv;
+    te[2] = (n32 * n21 - n31 * n22) * detInv;
+    te[3] = t12 * detInv;
+    te[4] = (n33 * n11 - n31 * n13) * detInv;
+    te[5] = (n31 * n12 - n32 * n11) * detInv;
+    te[6] = t13 * detInv;
+    te[7] = (n21 * n13 - n23 * n11) * detInv;
+    te[8] = (n22 * n11 - n21 * n12) * detInv;
+    return this;
+  }
+
+  transpose() {
+    let tmp;
+    const m = this.elements;
+    tmp = m[1];
+    m[1] = m[3];
+    m[3] = tmp;
+    tmp = m[2];
+    m[2] = m[6];
+    m[6] = tmp;
+    tmp = m[5];
+    m[5] = m[7];
+    m[7] = tmp;
+    return this;
+  }
+
+  getNormalMatrix(matrix4) {
+    return this.setFromMatrix4(matrix4).invert().transpose();
+  }
+
+  transposeIntoArray(r) {
+    const m = this.elements;
+    r[0] = m[0];
+    r[1] = m[3];
+    r[2] = m[6];
+    r[3] = m[1];
+    r[4] = m[4];
+    r[5] = m[7];
+    r[6] = m[2];
+    r[7] = m[5];
+    r[8] = m[8];
+    return this;
+  }
+
+  setUvTransform(tx, ty, sx, sy, rotation, cx, cy) {
+    const c = Math.cos(rotation);
+    const s = Math.sin(rotation);
+    this.set(sx * c, sx * s, -sx * (c * cx + s * cy) + cx + tx, -sy * s, sy * c, -sy * (-s * cx + c * cy) + cy + ty, 0, 0, 1);
+    return this;
+  }
+
+  scale(sx, sy) {
+    const te = this.elements;
+    te[0] *= sx;
+    te[3] *= sx;
+    te[6] *= sx;
+    te[1] *= sy;
+    te[4] *= sy;
+    te[7] *= sy;
+    return this;
+  }
+
+  rotate(theta) {
+    const c = Math.cos(theta);
+    const s = Math.sin(theta);
+    const te = this.elements;
+    const a11 = te[0],
+          a12 = te[3],
+          a13 = te[6];
+    const a21 = te[1],
+          a22 = te[4],
+          a23 = te[7];
+    te[0] = c * a11 + s * a21;
+    te[3] = c * a12 + s * a22;
+    te[6] = c * a13 + s * a23;
+    te[1] = -s * a11 + c * a21;
+    te[4] = -s * a12 + c * a22;
+    te[7] = -s * a13 + c * a23;
+    return this;
+  }
+
+  translate(tx, ty) {
+    const te = this.elements;
+    te[0] += tx * te[2];
+    te[3] += tx * te[5];
+    te[6] += tx * te[8];
+    te[1] += ty * te[2];
+    te[4] += ty * te[5];
+    te[7] += ty * te[8];
+    return this;
+  }
+
+  equals(matrix) {
+    const te = this.elements;
+    const me = matrix.elements;
+
+    for (let i = 0; i < 9; i++) {
+      if (te[i] !== me[i]) return false;
+    }
+
+    return true;
+  }
+
+  fromArray(array, offset = 0) {
+    for (let i = 0; i < 9; i++) {
+      this.elements[i] = array[i + offset];
+    }
+
+    return this;
+  }
+
+  toArray(array = [], offset = 0) {
+    const te = this.elements;
+    array[offset] = te[0];
+    array[offset + 1] = te[1];
+    array[offset + 2] = te[2];
+    array[offset + 3] = te[3];
+    array[offset + 4] = te[4];
+    array[offset + 5] = te[5];
+    array[offset + 6] = te[6];
+    array[offset + 7] = te[7];
+    array[offset + 8] = te[8];
+    return array;
+  }
+
+  clone() {
+    return new this.constructor().fromArray(this.elements);
+  }
+
+}
+
+exports.Matrix3 = Matrix3;
+Matrix3.prototype.isMatrix3 = true;
+
+let _canvas;
+
+const ImageUtils = {
+  getDataURL: function (image) {
+    if (/^data:/i.test(image.src)) {
+      return image.src;
+    }
+
+    if (typeof HTMLCanvasElement == 'undefined') {
+      return image.src;
+    }
+
+    let canvas;
+
+    if (image instanceof HTMLCanvasElement) {
+      canvas = image;
+    } else {
+      if (_canvas === undefined) _canvas = document.createElementNS('http://www.w3.org/1999/xhtml', 'canvas');
+      _canvas.width = image.width;
+      _canvas.height = image.height;
+
+      const context = _canvas.getContext('2d');
+
+      if (image instanceof ImageData) {
+        context.putImageData(image, 0, 0);
+      } else {
+        context.drawImage(image, 0, 0, image.width, image.height);
+      }
+
+      canvas = _canvas;
+    }
+
+    if (canvas.width > 2048 || canvas.height > 2048) {
+      return canvas.toDataURL('image/jpeg', 0.6);
+    } else {
+      return canvas.toDataURL('image/png');
+    }
+  }
+};
+exports.ImageUtils = ImageUtils;
+let textureId = 0;
+
+class Texture extends EventDispatcher {
+  constructor(image = Texture.DEFAULT_IMAGE, mapping = Texture.DEFAULT_MAPPING, wrapS = ClampToEdgeWrapping, wrapT = ClampToEdgeWrapping, magFilter = LinearFilter, minFilter = LinearMipmapLinearFilter, format = RGBAFormat, type = UnsignedByteType, anisotropy = 1, encoding = LinearEncoding) {
+    super();
+    Object.defineProperty(this, 'id', {
+      value: textureId++
+    });
+    this.uuid = MathUtils.generateUUID();
+    this.name = '';
+    this.image = image;
+    this.mipmaps = [];
+    this.mapping = mapping;
+    this.wrapS = wrapS;
+    this.wrapT = wrapT;
+    this.magFilter = magFilter;
+    this.minFilter = minFilter;
+    this.anisotropy = anisotropy;
+    this.format = format;
+    this.internalFormat = null;
+    this.type = type;
+    this.offset = new Vector2(0, 0);
+    this.repeat = new Vector2(1, 1);
+    this.center = new Vector2(0, 0);
+    this.rotation = 0;
+    this.matrixAutoUpdate = true;
+    this.matrix = new Matrix3();
+    this.generateMipmaps = true;
+    this.premultiplyAlpha = false;
+    this.flipY = true;
+    this.unpackAlignment = 4; // valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)
+    // Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
+    //
+    // Also changing the encoding after already used by a Material will not automatically make the Material
+    // update. You need to explicitly call Material.needsUpdate to trigger it to recompile.
+
+    this.encoding = encoding;
+    this.version = 0;
+    this.onUpdate = null;
+  }
+
+  updateMatrix() {
+    this.matrix.setUvTransform(this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y);
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+  copy(source) {
+    this.name = source.name;
+    this.image = source.image;
+    this.mipmaps = source.mipmaps.slice(0);
+    this.mapping = source.mapping;
+    this.wrapS = source.wrapS;
+    this.wrapT = source.wrapT;
+    this.magFilter = source.magFilter;
+    this.minFilter = source.minFilter;
+    this.anisotropy = source.anisotropy;
+    this.format = source.format;
+    this.internalFormat = source.internalFormat;
+    this.type = source.type;
+    this.offset.copy(source.offset);
+    this.repeat.copy(source.repeat);
+    this.center.copy(source.center);
+    this.rotation = source.rotation;
+    this.matrixAutoUpdate = source.matrixAutoUpdate;
+    this.matrix.copy(source.matrix);
+    this.generateMipmaps = source.generateMipmaps;
+    this.premultiplyAlpha = source.premultiplyAlpha;
+    this.flipY = source.flipY;
+    this.unpackAlignment = source.unpackAlignment;
+    this.encoding = source.encoding;
+    return this;
+  }
+
+  toJSON(meta) {
+    const isRootObject = meta === undefined || typeof meta === 'string';
+
+    if (!isRootObject && meta.textures[this.uuid] !== undefined) {
+      return meta.textures[this.uuid];
+    }
+
+    const output = {
+      metadata: {
+        version: 4.5,
+        type: 'Texture',
+        generator: 'Texture.toJSON'
+      },
+      uuid: this.uuid,
+      name: this.name,
+      mapping: this.mapping,
+      repeat: [this.repeat.x, this.repeat.y],
+      offset: [this.offset.x, this.offset.y],
+      center: [this.center.x, this.center.y],
+      rotation: this.rotation,
+      wrap: [this.wrapS, this.wrapT],
+      format: this.format,
+      type: this.type,
+      encoding: this.encoding,
+      minFilter: this.minFilter,
+      magFilter: this.magFilter,
+      anisotropy: this.anisotropy,
+      flipY: this.flipY,
+      premultiplyAlpha: this.premultiplyAlpha,
+      unpackAlignment: this.unpackAlignment
+    };
+
+    if (this.image !== undefined) {
+      // TODO: Move to THREE.Image
+      const image = this.image;
+
+      if (image.uuid === undefined) {
+        image.uuid = MathUtils.generateUUID(); // UGH
+      }
+
+      if (!isRootObject && meta.images[image.uuid] === undefined) {
+        let url;
+
+        if (Array.isArray(image)) {
+          // process array of images e.g. CubeTexture
+          url = [];
+
+          for (let i = 0, l = image.length; i < l; i++) {
+            // check cube texture with data textures
+            if (image[i].isDataTexture) {
+              url.push(serializeImage(image[i].image));
+            } else {
+              url.push(serializeImage(image[i]));
+            }
+          }
+        } else {
+          // process single image
+          url = serializeImage(image);
+        }
+
+        meta.images[image.uuid] = {
+          uuid: image.uuid,
+          url: url
+        };
+      }
+
+      output.image = image.uuid;
+    }
+
+    if (!isRootObject) {
+      meta.textures[this.uuid] = output;
+    }
+
+    return output;
+  }
+
+  dispose() {
+    this.dispatchEvent({
+      type: 'dispose'
+    });
+  }
+
+  transformUv(uv) {
+    if (this.mapping !== UVMapping) return uv;
+    uv.applyMatrix3(this.matrix);
+
+    if (uv.x < 0 || uv.x > 1) {
+      switch (this.wrapS) {
+        case RepeatWrapping:
+          uv.x = uv.x - Math.floor(uv.x);
+          break;
+
+        case ClampToEdgeWrapping:
+          uv.x = uv.x < 0 ? 0 : 1;
+          break;
+
+        case MirroredRepeatWrapping:
+          if (Math.abs(Math.floor(uv.x) % 2) === 1) {
+            uv.x = Math.ceil(uv.x) - uv.x;
+          } else {
+            uv.x = uv.x - Math.floor(uv.x);
+          }
+
+          break;
+      }
+    }
+
+    if (uv.y < 0 || uv.y > 1) {
+      switch (this.wrapT) {
+        case RepeatWrapping:
+          uv.y = uv.y - Math.floor(uv.y);
+          break;
+
+        case ClampToEdgeWrapping:
+          uv.y = uv.y < 0 ? 0 : 1;
+          break;
+
+        case MirroredRepeatWrapping:
+          if (Math.abs(Math.floor(uv.y) % 2) === 1) {
+            uv.y = Math.ceil(uv.y) - uv.y;
+          } else {
+            uv.y = uv.y - Math.floor(uv.y);
+          }
+
+          break;
+      }
+    }
+
+    if (this.flipY) {
+      uv.y = 1 - uv.y;
+    }
+
+    return uv;
+  }
+
+  set needsUpdate(value) {
+    if (value === true) this.version++;
+  }
+
+}
+
+exports.Texture = Texture;
+Texture.DEFAULT_IMAGE = undefined;
+Texture.DEFAULT_MAPPING = UVMapping;
+Texture.prototype.isTexture = true;
+
+function serializeImage(image) {
+  if (typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement || typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap) {
+    // default images
+    return ImageUtils.getDataURL(image);
+  } else {
+    if (image.data) {
+      // images of DataTexture
+      return {
+        data: Array.prototype.slice.call(image.data),
+        width: image.width,
+        height: image.height,
+        type: image.data.constructor.name
+      };
+    } else {
+      console.warn('THREE.Texture: Unable to serialize Texture.');
+      return {};
+    }
+  }
+}
+
+class Vector4 {
+  constructor(x = 0, y = 0, z = 0, w = 1) {
+    this.x = x;
+    this.y = y;
+    this.z = z;
+    this.w = w;
+  }
+
+  get width() {
+    return this.z;
+  }
+
+  set width(value) {
+    this.z = value;
+  }
+
+  get height() {
+    return this.w;
+  }
+
+  set height(value) {
+    this.w = value;
+  }
+
+  set(x, y, z, w) {
+    this.x = x;
+    this.y = y;
+    this.z = z;
+    this.w = w;
+    return this;
+  }
+
+  setScalar(scalar) {
+    this.x = scalar;
+    this.y = scalar;
+    this.z = scalar;
+    this.w = scalar;
+    return this;
+  }
+
+  setX(x) {
+    this.x = x;
+    return this;
+  }
+
+  setY(y) {
+    this.y = y;
+    return this;
+  }
+
+  setZ(z) {
+    this.z = z;
+    return this;
+  }
+
+  setW(w) {
+    this.w = w;
+    return this;
+  }
+
+  setComponent(index, value) {
+    switch (index) {
+      case 0:
+        this.x = value;
+        break;
+
+      case 1:
+        this.y = value;
+        break;
+
+      case 2:
+        this.z = value;
+        break;
+
+      case 3:
+        this.w = value;
+        break;
+
+      default:
+        throw new Error('index is out of range: ' + index);
+    }
+
+    return this;
+  }
+
+  getComponent(index) {
+    switch (index) {
+      case 0:
+        return this.x;
+
+      case 1:
+        return this.y;
+
+      case 2:
+        return this.z;
+
+      case 3:
+        return this.w;
+
+      default:
+        throw new Error('index is out of range: ' + index);
+    }
+  }
+
+  clone() {
+    return new this.constructor(this.x, this.y, this.z, this.w);
+  }
+
+  copy(v) {
+    this.x = v.x;
+    this.y = v.y;
+    this.z = v.z;
+    this.w = v.w !== undefined ? v.w : 1;
+    return this;
+  }
+
+  add(v, w) {
+    if (w !== undefined) {
+      console.warn('THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');
+      return this.addVectors(v, w);
+    }
+
+    this.x += v.x;
+    this.y += v.y;
+    this.z += v.z;
+    this.w += v.w;
+    return this;
+  }
+
+  addScalar(s) {
+    this.x += s;
+    this.y += s;
+    this.z += s;
+    this.w += s;
+    return this;
+  }
+
+  addVectors(a, b) {
+    this.x = a.x + b.x;
+    this.y = a.y + b.y;
+    this.z = a.z + b.z;
+    this.w = a.w + b.w;
+    return this;
+  }
+
+  addScaledVector(v, s) {
+    this.x += v.x * s;
+    this.y += v.y * s;
+    this.z += v.z * s;
+    this.w += v.w * s;
+    return this;
+  }
+
+  sub(v, w) {
+    if (w !== undefined) {
+      console.warn('THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');
+      return this.subVectors(v, w);
+    }
+
+    this.x -= v.x;
+    this.y -= v.y;
+    this.z -= v.z;
+    this.w -= v.w;
+    return this;
+  }
+
+  subScalar(s) {
+    this.x -= s;
+    this.y -= s;
+    this.z -= s;
+    this.w -= s;
+    return this;
+  }
+
+  subVectors(a, b) {
+    this.x = a.x - b.x;
+    this.y = a.y - b.y;
+    this.z = a.z - b.z;
+    this.w = a.w - b.w;
+    return this;
+  }
+
+  multiply(v) {
+    this.x *= v.x;
+    this.y *= v.y;
+    this.z *= v.z;
+    this.w *= v.w;
+    return this;
+  }
+
+  multiplyScalar(scalar) {
+    this.x *= scalar;
+    this.y *= scalar;
+    this.z *= scalar;
+    this.w *= scalar;
+    return this;
+  }
+
+  applyMatrix4(m) {
+    const x = this.x,
+          y = this.y,
+          z = this.z,
+          w = this.w;
+    const e = m.elements;
+    this.x = e[0] * x + e[4] * y + e[8] * z + e[12] * w;
+    this.y = e[1] * x + e[5] * y + e[9] * z + e[13] * w;
+    this.z = e[2] * x + e[6] * y + e[10] * z + e[14] * w;
+    this.w = e[3] * x + e[7] * y + e[11] * z + e[15] * w;
+    return this;
+  }
+
+  divideScalar(scalar) {
+    return this.multiplyScalar(1 / scalar);
+  }
+
+  setAxisAngleFromQuaternion(q) {
+    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm
+    // q is assumed to be normalized
+    this.w = 2 * Math.acos(q.w);
+    const s = Math.sqrt(1 - q.w * q.w);
+
+    if (s < 0.0001) {
+      this.x = 1;
+      this.y = 0;
+      this.z = 0;
+    } else {
+      this.x = q.x / s;
+      this.y = q.y / s;
+      this.z = q.z / s;
+    }
+
+    return this;
+  }
+
+  setAxisAngleFromRotationMatrix(m) {
+    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm
+    // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+    let angle, x, y, z; // variables for result
+
+    const epsilon = 0.01,
+          // margin to allow for rounding errors
+    epsilon2 = 0.1,
+          // margin to distinguish between 0 and 180 degrees
+    te = m.elements,
+          m11 = te[0],
+          m12 = te[4],
+          m13 = te[8],
+          m21 = te[1],
+          m22 = te[5],
+          m23 = te[9],
+          m31 = te[2],
+          m32 = te[6],
+          m33 = te[10];
+
+    if (Math.abs(m12 - m21) < epsilon && Math.abs(m13 - m31) < epsilon && Math.abs(m23 - m32) < epsilon) {
+      // singularity found
+      // first check for identity matrix which must have +1 for all terms
+      // in leading diagonal and zero in other terms
+      if (Math.abs(m12 + m21) < epsilon2 && Math.abs(m13 + m31) < epsilon2 && Math.abs(m23 + m32) < epsilon2 && Math.abs(m11 + m22 + m33 - 3) < epsilon2) {
+        // this singularity is identity matrix so angle = 0
+        this.set(1, 0, 0, 0);
+        return this; // zero angle, arbitrary axis
+      } // otherwise this singularity is angle = 180
+
+
+      angle = Math.PI;
+      const xx = (m11 + 1) / 2;
+      const yy = (m22 + 1) / 2;
+      const zz = (m33 + 1) / 2;
+      const xy = (m12 + m21) / 4;
+      const xz = (m13 + m31) / 4;
+      const yz = (m23 + m32) / 4;
+
+      if (xx > yy && xx > zz) {
+        // m11 is the largest diagonal term
+        if (xx < epsilon) {
+          x = 0;
+          y = 0.707106781;
+          z = 0.707106781;
+        } else {
+          x = Math.sqrt(xx);
+          y = xy / x;
+          z = xz / x;
+        }
+      } else if (yy > zz) {
+        // m22 is the largest diagonal term
+        if (yy < epsilon) {
+          x = 0.707106781;
+          y = 0;
+          z = 0.707106781;
+        } else {
+          y = Math.sqrt(yy);
+          x = xy / y;
+          z = yz / y;
+        }
+      } else {
+        // m33 is the largest diagonal term so base result on this
+        if (zz < epsilon) {
+          x = 0.707106781;
+          y = 0.707106781;
+          z = 0;
+        } else {
+          z = Math.sqrt(zz);
+          x = xz / z;
+          y = yz / z;
+        }
+      }
+
+      this.set(x, y, z, angle);
+      return this; // return 180 deg rotation
+    } // as we have reached here there are no singularities so we can handle normally
+
+
+    let s = Math.sqrt((m32 - m23) * (m32 - m23) + (m13 - m31) * (m13 - m31) + (m21 - m12) * (m21 - m12)); // used to normalize
+
+    if (Math.abs(s) < 0.001) s = 1; // prevent divide by zero, should not happen if matrix is orthogonal and should be
+    // caught by singularity test above, but I've left it in just in case
+
+    this.x = (m32 - m23) / s;
+    this.y = (m13 - m31) / s;
+    this.z = (m21 - m12) / s;
+    this.w = Math.acos((m11 + m22 + m33 - 1) / 2);
+    return this;
+  }
+
+  min(v) {
+    this.x = Math.min(this.x, v.x);
+    this.y = Math.min(this.y, v.y);
+    this.z = Math.min(this.z, v.z);
+    this.w = Math.min(this.w, v.w);
+    return this;
+  }
+
+  max(v) {
+    this.x = Math.max(this.x, v.x);
+    this.y = Math.max(this.y, v.y);
+    this.z = Math.max(this.z, v.z);
+    this.w = Math.max(this.w, v.w);
+    return this;
+  }
+
+  clamp(min, max) {
+    // assumes min < max, componentwise
+    this.x = Math.max(min.x, Math.min(max.x, this.x));
+    this.y = Math.max(min.y, Math.min(max.y, this.y));
+    this.z = Math.max(min.z, Math.min(max.z, this.z));
+    this.w = Math.max(min.w, Math.min(max.w, this.w));
+    return this;
+  }
+
+  clampScalar(minVal, maxVal) {
+    this.x = Math.max(minVal, Math.min(maxVal, this.x));
+    this.y = Math.max(minVal, Math.min(maxVal, this.y));
+    this.z = Math.max(minVal, Math.min(maxVal, this.z));
+    this.w = Math.max(minVal, Math.min(maxVal, this.w));
+    return this;
+  }
+
+  clampLength(min, max) {
+    const length = this.length();
+    return this.divideScalar(length || 1).multiplyScalar(Math.max(min, Math.min(max, length)));
+  }
+
+  floor() {
+    this.x = Math.floor(this.x);
+    this.y = Math.floor(this.y);
+    this.z = Math.floor(this.z);
+    this.w = Math.floor(this.w);
+    return this;
+  }
+
+  ceil() {
+    this.x = Math.ceil(this.x);
+    this.y = Math.ceil(this.y);
+    this.z = Math.ceil(this.z);
+    this.w = Math.ceil(this.w);
+    return this;
+  }
+
+  round() {
+    this.x = Math.round(this.x);
+    this.y = Math.round(this.y);
+    this.z = Math.round(this.z);
+    this.w = Math.round(this.w);
+    return this;
+  }
+
+  roundToZero() {
+    this.x = this.x < 0 ? Math.ceil(this.x) : Math.floor(this.x);
+    this.y = this.y < 0 ? Math.ceil(this.y) : Math.floor(this.y);
+    this.z = this.z < 0 ? Math.ceil(this.z) : Math.floor(this.z);
+    this.w = this.w < 0 ? Math.ceil(this.w) : Math.floor(this.w);
+    return this;
+  }
+
+  negate() {
+    this.x = -this.x;
+    this.y = -this.y;
+    this.z = -this.z;
+    this.w = -this.w;
+    return this;
+  }
+
+  dot(v) {
+    return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;
+  }
+
+  lengthSq() {
+    return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;
+  }
+
+  length() {
+    return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w);
+  }
+
+  manhattanLength() {
+    return Math.abs(this.x) + Math.abs(this.y) + Math.abs(this.z) + Math.abs(this.w);
+  }
+
+  normalize() {
+    return this.divideScalar(this.length() || 1);
+  }
+
+  setLength(length) {
+    return this.normalize().multiplyScalar(length);
+  }
+
+  lerp(v, alpha) {
+    this.x += (v.x - this.x) * alpha;
+    this.y += (v.y - this.y) * alpha;
+    this.z += (v.z - this.z) * alpha;
+    this.w += (v.w - this.w) * alpha;
+    return this;
+  }
+
+  lerpVectors(v1, v2, alpha) {
+    this.x = v1.x + (v2.x - v1.x) * alpha;
+    this.y = v1.y + (v2.y - v1.y) * alpha;
+    this.z = v1.z + (v2.z - v1.z) * alpha;
+    this.w = v1.w + (v2.w - v1.w) * alpha;
+    return this;
+  }
+
+  equals(v) {
+    return v.x === this.x && v.y === this.y && v.z === this.z && v.w === this.w;
+  }
+
+  fromArray(array, offset = 0) {
+    this.x = array[offset];
+    this.y = array[offset + 1];
+    this.z = array[offset + 2];
+    this.w = array[offset + 3];
+    return this;
+  }
+
+  toArray(array = [], offset = 0) {
+    array[offset] = this.x;
+    array[offset + 1] = this.y;
+    array[offset + 2] = this.z;
+    array[offset + 3] = this.w;
+    return array;
+  }
+
+  fromBufferAttribute(attribute, index, offset) {
+    if (offset !== undefined) {
+      console.warn('THREE.Vector4: offset has been removed from .fromBufferAttribute().');
+    }
+
+    this.x = attribute.getX(index);
+    this.y = attribute.getY(index);
+    this.z = attribute.getZ(index);
+    this.w = attribute.getW(index);
+    return this;
+  }
+
+  random() {
+    this.x = Math.random();
+    this.y = Math.random();
+    this.z = Math.random();
+    this.w = Math.random();
+    return this;
+  }
+
+}
+
+exports.Vector4 = Vector4;
+Vector4.prototype.isVector4 = true;
+/*
+ In options, we can specify:
+ * Texture parameters for an auto-generated target texture
+ * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
+*/
+
+class WebGLRenderTarget extends EventDispatcher {
+  constructor(width, height, options) {
+    super();
+    this.width = width;
+    this.height = height;
+    this.depth = 1;
+    this.scissor = new Vector4(0, 0, width, height);
+    this.scissorTest = false;
+    this.viewport = new Vector4(0, 0, width, height);
+    options = options || {};
+    this.texture = new Texture(undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding);
+    this.texture.image = {};
+    this.texture.image.width = width;
+    this.texture.image.height = height;
+    this.texture.image.depth = 1;
+    this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
+    this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;
+    this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
+    this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : false;
+    this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;
+  }
+
+  setTexture(texture) {
+    texture.image = {
+      width: this.width,
+      height: this.height,
+      depth: this.depth
+    };
+    this.texture = texture;
+  }
+
+  setSize(width, height, depth = 1) {
+    if (this.width !== width || this.height !== height || this.depth !== depth) {
+      this.width = width;
+      this.height = height;
+      this.depth = depth;
+      this.texture.image.width = width;
+      this.texture.image.height = height;
+      this.texture.image.depth = depth;
+      this.dispose();
+    }
+
+    this.viewport.set(0, 0, width, height);
+    this.scissor.set(0, 0, width, height);
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+  copy(source) {
+    this.width = source.width;
+    this.height = source.height;
+    this.depth = source.depth;
+    this.viewport.copy(source.viewport);
+    this.texture = source.texture.clone();
+    this.depthBuffer = source.depthBuffer;
+    this.stencilBuffer = source.stencilBuffer;
+    this.depthTexture = source.depthTexture;
+    return this;
+  }
+
+  dispose() {
+    this.dispatchEvent({
+      type: 'dispose'
+    });
+  }
+
+}
+
+exports.WebGLRenderTarget = WebGLRenderTarget;
+WebGLRenderTarget.prototype.isWebGLRenderTarget = true;
+
+class WebGLMultisampleRenderTarget extends WebGLRenderTarget {
+  constructor(width, height, options) {
+    super(width, height, options);
+    this.samples = 4;
+  }
+
+  copy(source) {
+    super.copy.call(this, source);
+    this.samples = source.samples;
+    return this;
+  }
+
+}
+
+exports.WebGLMultisampleRenderTarget = WebGLMultisampleRenderTarget;
+WebGLMultisampleRenderTarget.prototype.isWebGLMultisampleRenderTarget = true;
+
+class Quaternion {
+  constructor(x = 0, y = 0, z = 0, w = 1) {
+    this._x = x;
+    this._y = y;
+    this._z = z;
+    this._w = w;
+  }
+
+  static slerp(qa, qb, qm, t) {
+    return qm.copy(qa).slerp(qb, t);
+  }
+
+  static slerpFlat(dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t) {
+    // fuzz-free, array-based Quaternion SLERP operation
+    let x0 = src0[srcOffset0 + 0],
+        y0 = src0[srcOffset0 + 1],
+        z0 = src0[srcOffset0 + 2],
+        w0 = src0[srcOffset0 + 3];
+    const x1 = src1[srcOffset1 + 0],
+          y1 = src1[srcOffset1 + 1],
+          z1 = src1[srcOffset1 + 2],
+          w1 = src1[srcOffset1 + 3];
+
+    if (t === 0) {
+      dst[dstOffset + 0] = x0;
+      dst[dstOffset + 1] = y0;
+      dst[dstOffset + 2] = z0;
+      dst[dstOffset + 3] = w0;
+      return;
+    }
+
+    if (t === 1) {
+      dst[dstOffset + 0] = x1;
+      dst[dstOffset + 1] = y1;
+      dst[dstOffset + 2] = z1;
+      dst[dstOffset + 3] = w1;
+      return;
+    }
+
+    if (w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1) {
+      let s = 1 - t;
+      const cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,
+            dir = cos >= 0 ? 1 : -1,
+            sqrSin = 1 - cos * cos; // Skip the Slerp for tiny steps to avoid numeric problems:
+
+      if (sqrSin > Number.EPSILON) {
+        const sin = Math.sqrt(sqrSin),
+              len = Math.atan2(sin, cos * dir);
+        s = Math.sin(s * len) / sin;
+        t = Math.sin(t * len) / sin;
+      }
+
+      const tDir = t * dir;
+      x0 = x0 * s + x1 * tDir;
+      y0 = y0 * s + y1 * tDir;
+      z0 = z0 * s + z1 * tDir;
+      w0 = w0 * s + w1 * tDir; // Normalize in case we just did a lerp:
+
+      if (s === 1 - t) {
+        const f = 1 / Math.sqrt(x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0);
+        x0 *= f;
+        y0 *= f;
+        z0 *= f;
+        w0 *= f;
+      }
+    }
+
+    dst[dstOffset] = x0;
+    dst[dstOffset + 1] = y0;
+    dst[dstOffset + 2] = z0;
+    dst[dstOffset + 3] = w0;
+  }
+
+  static multiplyQuaternionsFlat(dst, dstOffset, src0, srcOffset0, src1, srcOffset1) {
+    const x0 = src0[srcOffset0];
+    const y0 = src0[srcOffset0 + 1];
+    const z0 = src0[srcOffset0 + 2];
+    const w0 = src0[srcOffset0 + 3];
+    const x1 = src1[srcOffset1];
+    const y1 = src1[srcOffset1 + 1];
+    const z1 = src1[srcOffset1 + 2];
+    const w1 = src1[srcOffset1 + 3];
+    dst[dstOffset] = x0 * w1 + w0 * x1 + y0 * z1 - z0 * y1;
+    dst[dstOffset + 1] = y0 * w1 + w0 * y1 + z0 * x1 - x0 * z1;
+    dst[dstOffset + 2] = z0 * w1 + w0 * z1 + x0 * y1 - y0 * x1;
+    dst[dstOffset + 3] = w0 * w1 - x0 * x1 - y0 * y1 - z0 * z1;
+    return dst;
+  }
+
+  get x() {
+    return this._x;
+  }
+
+  set x(value) {
+    this._x = value;
+
+    this._onChangeCallback();
+  }
+
+  get y() {
+    return this._y;
+  }
+
+  set y(value) {
+    this._y = value;
+
+    this._onChangeCallback();
+  }
+
+  get z() {
+    return this._z;
+  }
+
+  set z(value) {
+    this._z = value;
+
+    this._onChangeCallback();
+  }
+
+  get w() {
+    return this._w;
+  }
+
+  set w(value) {
+    this._w = value;
+
+    this._onChangeCallback();
+  }
+
+  set(x, y, z, w) {
+    this._x = x;
+    this._y = y;
+    this._z = z;
+    this._w = w;
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  clone() {
+    return new this.constructor(this._x, this._y, this._z, this._w);
+  }
+
+  copy(quaternion) {
+    this._x = quaternion.x;
+    this._y = quaternion.y;
+    this._z = quaternion.z;
+    this._w = quaternion.w;
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  setFromEuler(euler, update) {
+    if (!(euler && euler.isEuler)) {
+      throw new Error('THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.');
+    }
+
+    const x = euler._x,
+          y = euler._y,
+          z = euler._z,
+          order = euler._order; // http://www.mathworks.com/matlabcentral/fileexchange/
+    // 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
+    //	content/SpinCalc.m
+
+    const cos = Math.cos;
+    const sin = Math.sin;
+    const c1 = cos(x / 2);
+    const c2 = cos(y / 2);
+    const c3 = cos(z / 2);
+    const s1 = sin(x / 2);
+    const s2 = sin(y / 2);
+    const s3 = sin(z / 2);
+
+    switch (order) {
+      case 'XYZ':
+        this._x = s1 * c2 * c3 + c1 * s2 * s3;
+        this._y = c1 * s2 * c3 - s1 * c2 * s3;
+        this._z = c1 * c2 * s3 + s1 * s2 * c3;
+        this._w = c1 * c2 * c3 - s1 * s2 * s3;
+        break;
+
+      case 'YXZ':
+        this._x = s1 * c2 * c3 + c1 * s2 * s3;
+        this._y = c1 * s2 * c3 - s1 * c2 * s3;
+        this._z = c1 * c2 * s3 - s1 * s2 * c3;
+        this._w = c1 * c2 * c3 + s1 * s2 * s3;
+        break;
+
+      case 'ZXY':
+        this._x = s1 * c2 * c3 - c1 * s2 * s3;
+        this._y = c1 * s2 * c3 + s1 * c2 * s3;
+        this._z = c1 * c2 * s3 + s1 * s2 * c3;
+        this._w = c1 * c2 * c3 - s1 * s2 * s3;
+        break;
+
+      case 'ZYX':
+        this._x = s1 * c2 * c3 - c1 * s2 * s3;
+        this._y = c1 * s2 * c3 + s1 * c2 * s3;
+        this._z = c1 * c2 * s3 - s1 * s2 * c3;
+        this._w = c1 * c2 * c3 + s1 * s2 * s3;
+        break;
+
+      case 'YZX':
+        this._x = s1 * c2 * c3 + c1 * s2 * s3;
+        this._y = c1 * s2 * c3 + s1 * c2 * s3;
+        this._z = c1 * c2 * s3 - s1 * s2 * c3;
+        this._w = c1 * c2 * c3 - s1 * s2 * s3;
+        break;
+
+      case 'XZY':
+        this._x = s1 * c2 * c3 - c1 * s2 * s3;
+        this._y = c1 * s2 * c3 - s1 * c2 * s3;
+        this._z = c1 * c2 * s3 + s1 * s2 * c3;
+        this._w = c1 * c2 * c3 + s1 * s2 * s3;
+        break;
+
+      default:
+        console.warn('THREE.Quaternion: .setFromEuler() encountered an unknown order: ' + order);
+    }
+
+    if (update !== false) this._onChangeCallback();
+    return this;
+  }
+
+  setFromAxisAngle(axis, angle) {
+    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
+    // assumes axis is normalized
+    const halfAngle = angle / 2,
+          s = Math.sin(halfAngle);
+    this._x = axis.x * s;
+    this._y = axis.y * s;
+    this._z = axis.z * s;
+    this._w = Math.cos(halfAngle);
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  setFromRotationMatrix(m) {
+    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
+    // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+    const te = m.elements,
+          m11 = te[0],
+          m12 = te[4],
+          m13 = te[8],
+          m21 = te[1],
+          m22 = te[5],
+          m23 = te[9],
+          m31 = te[2],
+          m32 = te[6],
+          m33 = te[10],
+          trace = m11 + m22 + m33;
+
+    if (trace > 0) {
+      const s = 0.5 / Math.sqrt(trace + 1.0);
+      this._w = 0.25 / s;
+      this._x = (m32 - m23) * s;
+      this._y = (m13 - m31) * s;
+      this._z = (m21 - m12) * s;
+    } else if (m11 > m22 && m11 > m33) {
+      const s = 2.0 * Math.sqrt(1.0 + m11 - m22 - m33);
+      this._w = (m32 - m23) / s;
+      this._x = 0.25 * s;
+      this._y = (m12 + m21) / s;
+      this._z = (m13 + m31) / s;
+    } else if (m22 > m33) {
+      const s = 2.0 * Math.sqrt(1.0 + m22 - m11 - m33);
+      this._w = (m13 - m31) / s;
+      this._x = (m12 + m21) / s;
+      this._y = 0.25 * s;
+      this._z = (m23 + m32) / s;
+    } else {
+      const s = 2.0 * Math.sqrt(1.0 + m33 - m11 - m22);
+      this._w = (m21 - m12) / s;
+      this._x = (m13 + m31) / s;
+      this._y = (m23 + m32) / s;
+      this._z = 0.25 * s;
+    }
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  setFromUnitVectors(vFrom, vTo) {
+    // assumes direction vectors vFrom and vTo are normalized
+    const EPS = 0.000001;
+    let r = vFrom.dot(vTo) + 1;
+
+    if (r < EPS) {
+      r = 0;
+
+      if (Math.abs(vFrom.x) > Math.abs(vFrom.z)) {
+        this._x = -vFrom.y;
+        this._y = vFrom.x;
+        this._z = 0;
+        this._w = r;
+      } else {
+        this._x = 0;
+        this._y = -vFrom.z;
+        this._z = vFrom.y;
+        this._w = r;
+      }
+    } else {
+      // crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3
+      this._x = vFrom.y * vTo.z - vFrom.z * vTo.y;
+      this._y = vFrom.z * vTo.x - vFrom.x * vTo.z;
+      this._z = vFrom.x * vTo.y - vFrom.y * vTo.x;
+      this._w = r;
+    }
+
+    return this.normalize();
+  }
+
+  angleTo(q) {
+    return 2 * Math.acos(Math.abs(MathUtils.clamp(this.dot(q), -1, 1)));
+  }
+
+  rotateTowards(q, step) {
+    const angle = this.angleTo(q);
+    if (angle === 0) return this;
+    const t = Math.min(1, step / angle);
+    this.slerp(q, t);
+    return this;
+  }
+
+  identity() {
+    return this.set(0, 0, 0, 1);
+  }
+
+  invert() {
+    // quaternion is assumed to have unit length
+    return this.conjugate();
+  }
+
+  conjugate() {
+    this._x *= -1;
+    this._y *= -1;
+    this._z *= -1;
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  dot(v) {
+    return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;
+  }
+
+  lengthSq() {
+    return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;
+  }
+
+  length() {
+    return Math.sqrt(this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w);
+  }
+
+  normalize() {
+    let l = this.length();
+
+    if (l === 0) {
+      this._x = 0;
+      this._y = 0;
+      this._z = 0;
+      this._w = 1;
+    } else {
+      l = 1 / l;
+      this._x = this._x * l;
+      this._y = this._y * l;
+      this._z = this._z * l;
+      this._w = this._w * l;
+    }
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  multiply(q, p) {
+    if (p !== undefined) {
+      console.warn('THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.');
+      return this.multiplyQuaternions(q, p);
+    }
+
+    return this.multiplyQuaternions(this, q);
+  }
+
+  premultiply(q) {
+    return this.multiplyQuaternions(q, this);
+  }
+
+  multiplyQuaternions(a, b) {
+    // from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
+    const qax = a._x,
+          qay = a._y,
+          qaz = a._z,
+          qaw = a._w;
+    const qbx = b._x,
+          qby = b._y,
+          qbz = b._z,
+          qbw = b._w;
+    this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
+    this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
+    this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
+    this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  slerp(qb, t) {
+    if (t === 0) return this;
+    if (t === 1) return this.copy(qb);
+    const x = this._x,
+          y = this._y,
+          z = this._z,
+          w = this._w; // http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/
+
+    let cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;
+
+    if (cosHalfTheta < 0) {
+      this._w = -qb._w;
+      this._x = -qb._x;
+      this._y = -qb._y;
+      this._z = -qb._z;
+      cosHalfTheta = -cosHalfTheta;
+    } else {
+      this.copy(qb);
+    }
+
+    if (cosHalfTheta >= 1.0) {
+      this._w = w;
+      this._x = x;
+      this._y = y;
+      this._z = z;
+      return this;
+    }
+
+    const sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;
+
+    if (sqrSinHalfTheta <= Number.EPSILON) {
+      const s = 1 - t;
+      this._w = s * w + t * this._w;
+      this._x = s * x + t * this._x;
+      this._y = s * y + t * this._y;
+      this._z = s * z + t * this._z;
+      this.normalize();
+
+      this._onChangeCallback();
+
+      return this;
+    }
+
+    const sinHalfTheta = Math.sqrt(sqrSinHalfTheta);
+    const halfTheta = Math.atan2(sinHalfTheta, cosHalfTheta);
+    const ratioA = Math.sin((1 - t) * halfTheta) / sinHalfTheta,
+          ratioB = Math.sin(t * halfTheta) / sinHalfTheta;
+    this._w = w * ratioA + this._w * ratioB;
+    this._x = x * ratioA + this._x * ratioB;
+    this._y = y * ratioA + this._y * ratioB;
+    this._z = z * ratioA + this._z * ratioB;
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  equals(quaternion) {
+    return quaternion._x === this._x && quaternion._y === this._y && quaternion._z === this._z && quaternion._w === this._w;
+  }
+
+  fromArray(array, offset = 0) {
+    this._x = array[offset];
+    this._y = array[offset + 1];
+    this._z = array[offset + 2];
+    this._w = array[offset + 3];
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  toArray(array = [], offset = 0) {
+    array[offset] = this._x;
+    array[offset + 1] = this._y;
+    array[offset + 2] = this._z;
+    array[offset + 3] = this._w;
+    return array;
+  }
+
+  fromBufferAttribute(attribute, index) {
+    this._x = attribute.getX(index);
+    this._y = attribute.getY(index);
+    this._z = attribute.getZ(index);
+    this._w = attribute.getW(index);
+    return this;
+  }
+
+  _onChange(callback) {
+    this._onChangeCallback = callback;
+    return this;
+  }
+
+  _onChangeCallback() {}
+
+}
+
+exports.Quaternion = Quaternion;
+Quaternion.prototype.isQuaternion = true;
+
+class Vector3 {
+  constructor(x = 0, y = 0, z = 0) {
+    this.x = x;
+    this.y = y;
+    this.z = z;
+  }
+
+  set(x, y, z) {
+    if (z === undefined) z = this.z; // sprite.scale.set(x,y)
+
+    this.x = x;
+    this.y = y;
+    this.z = z;
+    return this;
+  }
+
+  setScalar(scalar) {
+    this.x = scalar;
+    this.y = scalar;
+    this.z = scalar;
+    return this;
+  }
+
+  setX(x) {
+    this.x = x;
+    return this;
+  }
+
+  setY(y) {
+    this.y = y;
+    return this;
+  }
+
+  setZ(z) {
+    this.z = z;
+    return this;
+  }
+
+  setComponent(index, value) {
+    switch (index) {
+      case 0:
+        this.x = value;
+        break;
+
+      case 1:
+        this.y = value;
+        break;
+
+      case 2:
+        this.z = value;
+        break;
+
+      default:
+        throw new Error('index is out of range: ' + index);
+    }
+
+    return this;
+  }
+
+  getComponent(index) {
+    switch (index) {
+      case 0:
+        return this.x;
+
+      case 1:
+        return this.y;
+
+      case 2:
+        return this.z;
+
+      default:
+        throw new Error('index is out of range: ' + index);
+    }
+  }
+
+  clone() {
+    return new this.constructor(this.x, this.y, this.z);
+  }
+
+  copy(v) {
+    this.x = v.x;
+    this.y = v.y;
+    this.z = v.z;
+    return this;
+  }
+
+  add(v, w) {
+    if (w !== undefined) {
+      console.warn('THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');
+      return this.addVectors(v, w);
+    }
+
+    this.x += v.x;
+    this.y += v.y;
+    this.z += v.z;
+    return this;
+  }
+
+  addScalar(s) {
+    this.x += s;
+    this.y += s;
+    this.z += s;
+    return this;
+  }
+
+  addVectors(a, b) {
+    this.x = a.x + b.x;
+    this.y = a.y + b.y;
+    this.z = a.z + b.z;
+    return this;
+  }
+
+  addScaledVector(v, s) {
+    this.x += v.x * s;
+    this.y += v.y * s;
+    this.z += v.z * s;
+    return this;
+  }
+
+  sub(v, w) {
+    if (w !== undefined) {
+      console.warn('THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');
+      return this.subVectors(v, w);
+    }
+
+    this.x -= v.x;
+    this.y -= v.y;
+    this.z -= v.z;
+    return this;
+  }
+
+  subScalar(s) {
+    this.x -= s;
+    this.y -= s;
+    this.z -= s;
+    return this;
+  }
+
+  subVectors(a, b) {
+    this.x = a.x - b.x;
+    this.y = a.y - b.y;
+    this.z = a.z - b.z;
+    return this;
+  }
+
+  multiply(v, w) {
+    if (w !== undefined) {
+      console.warn('THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.');
+      return this.multiplyVectors(v, w);
+    }
+
+    this.x *= v.x;
+    this.y *= v.y;
+    this.z *= v.z;
+    return this;
+  }
+
+  multiplyScalar(scalar) {
+    this.x *= scalar;
+    this.y *= scalar;
+    this.z *= scalar;
+    return this;
+  }
+
+  multiplyVectors(a, b) {
+    this.x = a.x * b.x;
+    this.y = a.y * b.y;
+    this.z = a.z * b.z;
+    return this;
+  }
+
+  applyEuler(euler) {
+    if (!(euler && euler.isEuler)) {
+      console.error('THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.');
+    }
+
+    return this.applyQuaternion(_quaternion.setFromEuler(euler));
+  }
+
+  applyAxisAngle(axis, angle) {
+    return this.applyQuaternion(_quaternion.setFromAxisAngle(axis, angle));
+  }
+
+  applyMatrix3(m) {
+    const x = this.x,
+          y = this.y,
+          z = this.z;
+    const e = m.elements;
+    this.x = e[0] * x + e[3] * y + e[6] * z;
+    this.y = e[1] * x + e[4] * y + e[7] * z;
+    this.z = e[2] * x + e[5] * y + e[8] * z;
+    return this;
+  }
+
+  applyNormalMatrix(m) {
+    return this.applyMatrix3(m).normalize();
+  }
+
+  applyMatrix4(m) {
+    const x = this.x,
+          y = this.y,
+          z = this.z;
+    const e = m.elements;
+    const w = 1 / (e[3] * x + e[7] * y + e[11] * z + e[15]);
+    this.x = (e[0] * x + e[4] * y + e[8] * z + e[12]) * w;
+    this.y = (e[1] * x + e[5] * y + e[9] * z + e[13]) * w;
+    this.z = (e[2] * x + e[6] * y + e[10] * z + e[14]) * w;
+    return this;
+  }
+
+  applyQuaternion(q) {
+    const x = this.x,
+          y = this.y,
+          z = this.z;
+    const qx = q.x,
+          qy = q.y,
+          qz = q.z,
+          qw = q.w; // calculate quat * vector
+
+    const ix = qw * x + qy * z - qz * y;
+    const iy = qw * y + qz * x - qx * z;
+    const iz = qw * z + qx * y - qy * x;
+    const iw = -qx * x - qy * y - qz * z; // calculate result * inverse quat
+
+    this.x = ix * qw + iw * -qx + iy * -qz - iz * -qy;
+    this.y = iy * qw + iw * -qy + iz * -qx - ix * -qz;
+    this.z = iz * qw + iw * -qz + ix * -qy - iy * -qx;
+    return this;
+  }
+
+  project(camera) {
+    return this.applyMatrix4(camera.matrixWorldInverse).applyMatrix4(camera.projectionMatrix);
+  }
+
+  unproject(camera) {
+    return this.applyMatrix4(camera.projectionMatrixInverse).applyMatrix4(camera.matrixWorld);
+  }
+
+  transformDirection(m) {
+    // input: THREE.Matrix4 affine matrix
+    // vector interpreted as a direction
+    const x = this.x,
+          y = this.y,
+          z = this.z;
+    const e = m.elements;
+    this.x = e[0] * x + e[4] * y + e[8] * z;
+    this.y = e[1] * x + e[5] * y + e[9] * z;
+    this.z = e[2] * x + e[6] * y + e[10] * z;
+    return this.normalize();
+  }
+
+  divide(v) {
+    this.x /= v.x;
+    this.y /= v.y;
+    this.z /= v.z;
+    return this;
+  }
+
+  divideScalar(scalar) {
+    return this.multiplyScalar(1 / scalar);
+  }
+
+  min(v) {
+    this.x = Math.min(this.x, v.x);
+    this.y = Math.min(this.y, v.y);
+    this.z = Math.min(this.z, v.z);
+    return this;
+  }
+
+  max(v) {
+    this.x = Math.max(this.x, v.x);
+    this.y = Math.max(this.y, v.y);
+    this.z = Math.max(this.z, v.z);
+    return this;
+  }
+
+  clamp(min, max) {
+    // assumes min < max, componentwise
+    this.x = Math.max(min.x, Math.min(max.x, this.x));
+    this.y = Math.max(min.y, Math.min(max.y, this.y));
+    this.z = Math.max(min.z, Math.min(max.z, this.z));
+    return this;
+  }
+
+  clampScalar(minVal, maxVal) {
+    this.x = Math.max(minVal, Math.min(maxVal, this.x));
+    this.y = Math.max(minVal, Math.min(maxVal, this.y));
+    this.z = Math.max(minVal, Math.min(maxVal, this.z));
+    return this;
+  }
+
+  clampLength(min, max) {
+    const length = this.length();
+    return this.divideScalar(length || 1).multiplyScalar(Math.max(min, Math.min(max, length)));
+  }
+
+  floor() {
+    this.x = Math.floor(this.x);
+    this.y = Math.floor(this.y);
+    this.z = Math.floor(this.z);
+    return this;
+  }
+
+  ceil() {
+    this.x = Math.ceil(this.x);
+    this.y = Math.ceil(this.y);
+    this.z = Math.ceil(this.z);
+    return this;
+  }
+
+  round() {
+    this.x = Math.round(this.x);
+    this.y = Math.round(this.y);
+    this.z = Math.round(this.z);
+    return this;
+  }
+
+  roundToZero() {
+    this.x = this.x < 0 ? Math.ceil(this.x) : Math.floor(this.x);
+    this.y = this.y < 0 ? Math.ceil(this.y) : Math.floor(this.y);
+    this.z = this.z < 0 ? Math.ceil(this.z) : Math.floor(this.z);
+    return this;
+  }
+
+  negate() {
+    this.x = -this.x;
+    this.y = -this.y;
+    this.z = -this.z;
+    return this;
+  }
+
+  dot(v) {
+    return this.x * v.x + this.y * v.y + this.z * v.z;
+  } // TODO lengthSquared?
+
+
+  lengthSq() {
+    return this.x * this.x + this.y * this.y + this.z * this.z;
+  }
+
+  length() {
+    return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
+  }
+
+  manhattanLength() {
+    return Math.abs(this.x) + Math.abs(this.y) + Math.abs(this.z);
+  }
+
+  normalize() {
+    return this.divideScalar(this.length() || 1);
+  }
+
+  setLength(length) {
+    return this.normalize().multiplyScalar(length);
+  }
+
+  lerp(v, alpha) {
+    this.x += (v.x - this.x) * alpha;
+    this.y += (v.y - this.y) * alpha;
+    this.z += (v.z - this.z) * alpha;
+    return this;
+  }
+
+  lerpVectors(v1, v2, alpha) {
+    this.x = v1.x + (v2.x - v1.x) * alpha;
+    this.y = v1.y + (v2.y - v1.y) * alpha;
+    this.z = v1.z + (v2.z - v1.z) * alpha;
+    return this;
+  }
+
+  cross(v, w) {
+    if (w !== undefined) {
+      console.warn('THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.');
+      return this.crossVectors(v, w);
+    }
+
+    return this.crossVectors(this, v);
+  }
+
+  crossVectors(a, b) {
+    const ax = a.x,
+          ay = a.y,
+          az = a.z;
+    const bx = b.x,
+          by = b.y,
+          bz = b.z;
+    this.x = ay * bz - az * by;
+    this.y = az * bx - ax * bz;
+    this.z = ax * by - ay * bx;
+    return this;
+  }
+
+  projectOnVector(v) {
+    const denominator = v.lengthSq();
+    if (denominator === 0) return this.set(0, 0, 0);
+    const scalar = v.dot(this) / denominator;
+    return this.copy(v).multiplyScalar(scalar);
+  }
+
+  projectOnPlane(planeNormal) {
+    _vector.copy(this).projectOnVector(planeNormal);
+
+    return this.sub(_vector);
+  }
+
+  reflect(normal) {
+    // reflect incident vector off plane orthogonal to normal
+    // normal is assumed to have unit length
+    return this.sub(_vector.copy(normal).multiplyScalar(2 * this.dot(normal)));
+  }
+
+  angleTo(v) {
+    const denominator = Math.sqrt(this.lengthSq() * v.lengthSq());
+    if (denominator === 0) return Math.PI / 2;
+    const theta = this.dot(v) / denominator; // clamp, to handle numerical problems
+
+    return Math.acos(MathUtils.clamp(theta, -1, 1));
+  }
+
+  distanceTo(v) {
+    return Math.sqrt(this.distanceToSquared(v));
+  }
+
+  distanceToSquared(v) {
+    const dx = this.x - v.x,
+          dy = this.y - v.y,
+          dz = this.z - v.z;
+    return dx * dx + dy * dy + dz * dz;
+  }
+
+  manhattanDistanceTo(v) {
+    return Math.abs(this.x - v.x) + Math.abs(this.y - v.y) + Math.abs(this.z - v.z);
+  }
+
+  setFromSpherical(s) {
+    return this.setFromSphericalCoords(s.radius, s.phi, s.theta);
+  }
+
+  setFromSphericalCoords(radius, phi, theta) {
+    const sinPhiRadius = Math.sin(phi) * radius;
+    this.x = sinPhiRadius * Math.sin(theta);
+    this.y = Math.cos(phi) * radius;
+    this.z = sinPhiRadius * Math.cos(theta);
+    return this;
+  }
+
+  setFromCylindrical(c) {
+    return this.setFromCylindricalCoords(c.radius, c.theta, c.y);
+  }
+
+  setFromCylindricalCoords(radius, theta, y) {
+    this.x = radius * Math.sin(theta);
+    this.y = y;
+    this.z = radius * Math.cos(theta);
+    return this;
+  }
+
+  setFromMatrixPosition(m) {
+    const e = m.elements;
+    this.x = e[12];
+    this.y = e[13];
+    this.z = e[14];
+    return this;
+  }
+
+  setFromMatrixScale(m) {
+    const sx = this.setFromMatrixColumn(m, 0).length();
+    const sy = this.setFromMatrixColumn(m, 1).length();
+    const sz = this.setFromMatrixColumn(m, 2).length();
+    this.x = sx;
+    this.y = sy;
+    this.z = sz;
+    return this;
+  }
+
+  setFromMatrixColumn(m, index) {
+    return this.fromArray(m.elements, index * 4);
+  }
+
+  setFromMatrix3Column(m, index) {
+    return this.fromArray(m.elements, index * 3);
+  }
+
+  equals(v) {
+    return v.x === this.x && v.y === this.y && v.z === this.z;
+  }
+
+  fromArray(array, offset = 0) {
+    this.x = array[offset];
+    this.y = array[offset + 1];
+    this.z = array[offset + 2];
+    return this;
+  }
+
+  toArray(array = [], offset = 0) {
+    array[offset] = this.x;
+    array[offset + 1] = this.y;
+    array[offset + 2] = this.z;
+    return array;
+  }
+
+  fromBufferAttribute(attribute, index, offset) {
+    if (offset !== undefined) {
+      console.warn('THREE.Vector3: offset has been removed from .fromBufferAttribute().');
+    }
+
+    this.x = attribute.getX(index);
+    this.y = attribute.getY(index);
+    this.z = attribute.getZ(index);
+    return this;
+  }
+
+  random() {
+    this.x = Math.random();
+    this.y = Math.random();
+    this.z = Math.random();
+    return this;
+  }
+
+}
+
+exports.Vector3 = Vector3;
+Vector3.prototype.isVector3 = true;
+
+const _vector =
+/*@__PURE__*/
+new Vector3();
+
+const _quaternion =
+/*@__PURE__*/
+new Quaternion();
+
+class Box3 {
+  constructor(min = new Vector3(+Infinity, +Infinity, +Infinity), max = new Vector3(-Infinity, -Infinity, -Infinity)) {
+    this.min = min;
+    this.max = max;
+  }
+
+  set(min, max) {
+    this.min.copy(min);
+    this.max.copy(max);
+    return this;
+  }
+
+  setFromArray(array) {
+    let minX = +Infinity;
+    let minY = +Infinity;
+    let minZ = +Infinity;
+    let maxX = -Infinity;
+    let maxY = -Infinity;
+    let maxZ = -Infinity;
+
+    for (let i = 0, l = array.length; i < l; i += 3) {
+      const x = array[i];
+      const y = array[i + 1];
+      const z = array[i + 2];
+      if (x < minX) minX = x;
+      if (y < minY) minY = y;
+      if (z < minZ) minZ = z;
+      if (x > maxX) maxX = x;
+      if (y > maxY) maxY = y;
+      if (z > maxZ) maxZ = z;
+    }
+
+    this.min.set(minX, minY, minZ);
+    this.max.set(maxX, maxY, maxZ);
+    return this;
+  }
+
+  setFromBufferAttribute(attribute) {
+    let minX = +Infinity;
+    let minY = +Infinity;
+    let minZ = +Infinity;
+    let maxX = -Infinity;
+    let maxY = -Infinity;
+    let maxZ = -Infinity;
+
+    for (let i = 0, l = attribute.count; i < l; i++) {
+      const x = attribute.getX(i);
+      const y = attribute.getY(i);
+      const z = attribute.getZ(i);
+      if (x < minX) minX = x;
+      if (y < minY) minY = y;
+      if (z < minZ) minZ = z;
+      if (x > maxX) maxX = x;
+      if (y > maxY) maxY = y;
+      if (z > maxZ) maxZ = z;
+    }
+
+    this.min.set(minX, minY, minZ);
+    this.max.set(maxX, maxY, maxZ);
+    return this;
+  }
+
+  setFromPoints(points) {
+    this.makeEmpty();
+
+    for (let i = 0, il = points.length; i < il; i++) {
+      this.expandByPoint(points[i]);
+    }
+
+    return this;
+  }
+
+  setFromCenterAndSize(center, size) {
+    const halfSize = _vector$1.copy(size).multiplyScalar(0.5);
+
+    this.min.copy(center).sub(halfSize);
+    this.max.copy(center).add(halfSize);
+    return this;
+  }
+
+  setFromObject(object) {
+    this.makeEmpty();
+    return this.expandByObject(object);
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+  copy(box) {
+    this.min.copy(box.min);
+    this.max.copy(box.max);
+    return this;
+  }
+
+  makeEmpty() {
+    this.min.x = this.min.y = this.min.z = +Infinity;
+    this.max.x = this.max.y = this.max.z = -Infinity;
+    return this;
+  }
+
+  isEmpty() {
+    // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
+    return this.max.x < this.min.x || this.max.y < this.min.y || this.max.z < this.min.z;
+  }
+
+  getCenter(target) {
+    if (target === undefined) {
+      console.warn('THREE.Box3: .getCenter() target is now required');
+      target = new Vector3();
+    }
+
+    return this.isEmpty() ? target.set(0, 0, 0) : target.addVectors(this.min, this.max).multiplyScalar(0.5);
+  }
+
+  getSize(target) {
+    if (target === undefined) {
+      console.warn('THREE.Box3: .getSize() target is now required');
+      target = new Vector3();
+    }
+
+    return this.isEmpty() ? target.set(0, 0, 0) : target.subVectors(this.max, this.min);
+  }
+
+  expandByPoint(point) {
+    this.min.min(point);
+    this.max.max(point);
+    return this;
+  }
+
+  expandByVector(vector) {
+    this.min.sub(vector);
+    this.max.add(vector);
+    return this;
+  }
+
+  expandByScalar(scalar) {
+    this.min.addScalar(-scalar);
+    this.max.addScalar(scalar);
+    return this;
+  }
+
+  expandByObject(object) {
+    // Computes the world-axis-aligned bounding box of an object (including its children),
+    // accounting for both the object's, and children's, world transforms
+    object.updateWorldMatrix(false, false);
+    const geometry = object.geometry;
+
+    if (geometry !== undefined) {
+      if (geometry.boundingBox === null) {
+        geometry.computeBoundingBox();
+      }
+
+      _box.copy(geometry.boundingBox);
+
+      _box.applyMatrix4(object.matrixWorld);
+
+      this.union(_box);
+    }
+
+    const children = object.children;
+
+    for (let i = 0, l = children.length; i < l; i++) {
+      this.expandByObject(children[i]);
+    }
+
+    return this;
+  }
+
+  containsPoint(point) {
+    return point.x < this.min.x || point.x > this.max.x || point.y < this.min.y || point.y > this.max.y || point.z < this.min.z || point.z > this.max.z ? false : true;
+  }
+
+  containsBox(box) {
+    return this.min.x <= box.min.x && box.max.x <= this.max.x && this.min.y <= box.min.y && box.max.y <= this.max.y && this.min.z <= box.min.z && box.max.z <= this.max.z;
+  }
+
+  getParameter(point, target) {
+    // This can potentially have a divide by zero if the box
+    // has a size dimension of 0.
+    if (target === undefined) {
+      console.warn('THREE.Box3: .getParameter() target is now required');
+      target = new Vector3();
+    }
+
+    return target.set((point.x - this.min.x) / (this.max.x - this.min.x), (point.y - this.min.y) / (this.max.y - this.min.y), (point.z - this.min.z) / (this.max.z - this.min.z));
+  }
+
+  intersectsBox(box) {
+    // using 6 splitting planes to rule out intersections.
+    return box.max.x < this.min.x || box.min.x > this.max.x || box.max.y < this.min.y || box.min.y > this.max.y || box.max.z < this.min.z || box.min.z > this.max.z ? false : true;
+  }
+
+  intersectsSphere(sphere) {
+    // Find the point on the AABB closest to the sphere center.
+    this.clampPoint(sphere.center, _vector$1); // If that point is inside the sphere, the AABB and sphere intersect.
+
+    return _vector$1.distanceToSquared(sphere.center) <= sphere.radius * sphere.radius;
+  }
+
+  intersectsPlane(plane) {
+    // We compute the minimum and maximum dot product values. If those values
+    // are on the same side (back or front) of the plane, then there is no intersection.
+    let min, max;
+
+    if (plane.normal.x > 0) {
+      min = plane.normal.x * this.min.x;
+      max = plane.normal.x * this.max.x;
+    } else {
+      min = plane.normal.x * this.max.x;
+      max = plane.normal.x * this.min.x;
+    }
+
+    if (plane.normal.y > 0) {
+      min += plane.normal.y * this.min.y;
+      max += plane.normal.y * this.max.y;
+    } else {
+      min += plane.normal.y * this.max.y;
+      max += plane.normal.y * this.min.y;
+    }
+
+    if (plane.normal.z > 0) {
+      min += plane.normal.z * this.min.z;
+      max += plane.normal.z * this.max.z;
+    } else {
+      min += plane.normal.z * this.max.z;
+      max += plane.normal.z * this.min.z;
+    }
+
+    return min <= -plane.constant && max >= -plane.constant;
+  }
+
+  intersectsTriangle(triangle) {
+    if (this.isEmpty()) {
+      return false;
+    } // compute box center and extents
+
+
+    this.getCenter(_center);
+
+    _extents.subVectors(this.max, _center); // translate triangle to aabb origin
+
+
+    _v0.subVectors(triangle.a, _center);
+
+    _v1.subVectors(triangle.b, _center);
+
+    _v2.subVectors(triangle.c, _center); // compute edge vectors for triangle
+
+
+    _f0.subVectors(_v1, _v0);
+
+    _f1.subVectors(_v2, _v1);
+
+    _f2.subVectors(_v0, _v2); // test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
+    // make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
+    // axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)
+
+
+    let axes = [0, -_f0.z, _f0.y, 0, -_f1.z, _f1.y, 0, -_f2.z, _f2.y, _f0.z, 0, -_f0.x, _f1.z, 0, -_f1.x, _f2.z, 0, -_f2.x, -_f0.y, _f0.x, 0, -_f1.y, _f1.x, 0, -_f2.y, _f2.x, 0];
+
+    if (!satForAxes(axes, _v0, _v1, _v2, _extents)) {
+      return false;
+    } // test 3 face normals from the aabb
+
+
+    axes = [1, 0, 0, 0, 1, 0, 0, 0, 1];
+
+    if (!satForAxes(axes, _v0, _v1, _v2, _extents)) {
+      return false;
+    } // finally testing the face normal of the triangle
+    // use already existing triangle edge vectors here
+
+
+    _triangleNormal.crossVectors(_f0, _f1);
+
+    axes = [_triangleNormal.x, _triangleNormal.y, _triangleNormal.z];
+    return satForAxes(axes, _v0, _v1, _v2, _extents);
+  }
+
+  clampPoint(point, target) {
+    if (target === undefined) {
+      console.warn('THREE.Box3: .clampPoint() target is now required');
+      target = new Vector3();
+    }
+
+    return target.copy(point).clamp(this.min, this.max);
+  }
+
+  distanceToPoint(point) {
+    const clampedPoint = _vector$1.copy(point).clamp(this.min, this.max);
+
+    return clampedPoint.sub(point).length();
+  }
+
+  getBoundingSphere(target) {
+    if (target === undefined) {
+      console.error('THREE.Box3: .getBoundingSphere() target is now required'); //target = new Sphere(); // removed to avoid cyclic dependency
+    }
+
+    this.getCenter(target.center);
+    target.radius = this.getSize(_vector$1).length() * 0.5;
+    return target;
+  }
+
+  intersect(box) {
+    this.min.max(box.min);
+    this.max.min(box.max); // ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
+
+    if (this.isEmpty()) this.makeEmpty();
+    return this;
+  }
+
+  union(box) {
+    this.min.min(box.min);
+    this.max.max(box.max);
+    return this;
+  }
+
+  applyMatrix4(matrix) {
+    // transform of empty box is an empty box.
+    if (this.isEmpty()) return this; // NOTE: I am using a binary pattern to specify all 2^3 combinations below
+
+    _points[0].set(this.min.x, this.min.y, this.min.z).applyMatrix4(matrix); // 000
+
+
+    _points[1].set(this.min.x, this.min.y, this.max.z).applyMatrix4(matrix); // 001
+
+
+    _points[2].set(this.min.x, this.max.y, this.min.z).applyMatrix4(matrix); // 010
+
+
+    _points[3].set(this.min.x, this.max.y, this.max.z).applyMatrix4(matrix); // 011
+
+
+    _points[4].set(this.max.x, this.min.y, this.min.z).applyMatrix4(matrix); // 100
+
+
+    _points[5].set(this.max.x, this.min.y, this.max.z).applyMatrix4(matrix); // 101
+
+
+    _points[6].set(this.max.x, this.max.y, this.min.z).applyMatrix4(matrix); // 110
+
+
+    _points[7].set(this.max.x, this.max.y, this.max.z).applyMatrix4(matrix); // 111
+
+
+    this.setFromPoints(_points);
+    return this;
+  }
+
+  translate(offset) {
+    this.min.add(offset);
+    this.max.add(offset);
+    return this;
+  }
+
+  equals(box) {
+    return box.min.equals(this.min) && box.max.equals(this.max);
+  }
+
+}
+
+exports.Box3 = Box3;
+Box3.prototype.isBox3 = true;
+const _points = [
+/*@__PURE__*/
+new Vector3(),
+/*@__PURE__*/
+new Vector3(),
+/*@__PURE__*/
+new Vector3(),
+/*@__PURE__*/
+new Vector3(),
+/*@__PURE__*/
+new Vector3(),
+/*@__PURE__*/
+new Vector3(),
+/*@__PURE__*/
+new Vector3(),
+/*@__PURE__*/
+new Vector3()];
+
+const _vector$1 =
+/*@__PURE__*/
+new Vector3();
+
+const _box =
+/*@__PURE__*/
+new Box3(); // triangle centered vertices
+
+
+const _v0 =
+/*@__PURE__*/
+new Vector3();
+
+const _v1 =
+/*@__PURE__*/
+new Vector3();
+
+const _v2 =
+/*@__PURE__*/
+new Vector3(); // triangle edge vectors
+
+
+const _f0 =
+/*@__PURE__*/
+new Vector3();
+
+const _f1 =
+/*@__PURE__*/
+new Vector3();
+
+const _f2 =
+/*@__PURE__*/
+new Vector3();
+
+const _center =
+/*@__PURE__*/
+new Vector3();
+
+const _extents =
+/*@__PURE__*/
+new Vector3();
+
+const _triangleNormal =
+/*@__PURE__*/
+new Vector3();
+
+const _testAxis =
+/*@__PURE__*/
+new Vector3();
+
+function satForAxes(axes, v0, v1, v2, extents) {
+  for (let i = 0, j = axes.length - 3; i <= j; i += 3) {
+    _testAxis.fromArray(axes, i); // project the aabb onto the seperating axis
+
+
+    const r = extents.x * Math.abs(_testAxis.x) + extents.y * Math.abs(_testAxis.y) + extents.z * Math.abs(_testAxis.z); // project all 3 vertices of the triangle onto the seperating axis
+
+    const p0 = v0.dot(_testAxis);
+    const p1 = v1.dot(_testAxis);
+    const p2 = v2.dot(_testAxis); // actual test, basically see if either of the most extreme of the triangle points intersects r
+
+    if (Math.max(-Math.max(p0, p1, p2), Math.min(p0, p1, p2)) > r) {
+      // points of the projected triangle are outside the projected half-length of the aabb
+      // the axis is seperating and we can exit
+      return false;
+    }
+  }
+
+  return true;
+}
+
+const _box$1 =
+/*@__PURE__*/
+new Box3();
+
+class Sphere {
+  constructor(center = new Vector3(), radius = -1) {
+    this.center = center;
+    this.radius = radius;
+  }
+
+  set(center, radius) {
+    this.center.copy(center);
+    this.radius = radius;
+    return this;
+  }
+
+  setFromPoints(points, optionalCenter) {
+    const center = this.center;
+
+    if (optionalCenter !== undefined) {
+      center.copy(optionalCenter);
+    } else {
+      _box$1.setFromPoints(points).getCenter(center);
+    }
+
+    let maxRadiusSq = 0;
+
+    for (let i = 0, il = points.length; i < il; i++) {
+      maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(points[i]));
+    }
+
+    this.radius = Math.sqrt(maxRadiusSq);
+    return this;
+  }
+
+  copy(sphere) {
+    this.center.copy(sphere.center);
+    this.radius = sphere.radius;
+    return this;
+  }
+
+  isEmpty() {
+    return this.radius < 0;
+  }
+
+  makeEmpty() {
+    this.center.set(0, 0, 0);
+    this.radius = -1;
+    return this;
+  }
+
+  containsPoint(point) {
+    return point.distanceToSquared(this.center) <= this.radius * this.radius;
+  }
+
+  distanceToPoint(point) {
+    return point.distanceTo(this.center) - this.radius;
+  }
+
+  intersectsSphere(sphere) {
+    const radiusSum = this.radius + sphere.radius;
+    return sphere.center.distanceToSquared(this.center) <= radiusSum * radiusSum;
+  }
+
+  intersectsBox(box) {
+    return box.intersectsSphere(this);
+  }
+
+  intersectsPlane(plane) {
+    return Math.abs(plane.distanceToPoint(this.center)) <= this.radius;
+  }
+
+  clampPoint(point, target) {
+    const deltaLengthSq = this.center.distanceToSquared(point);
+
+    if (target === undefined) {
+      console.warn('THREE.Sphere: .clampPoint() target is now required');
+      target = new Vector3();
+    }
+
+    target.copy(point);
+
+    if (deltaLengthSq > this.radius * this.radius) {
+      target.sub(this.center).normalize();
+      target.multiplyScalar(this.radius).add(this.center);
+    }
+
+    return target;
+  }
+
+  getBoundingBox(target) {
+    if (target === undefined) {
+      console.warn('THREE.Sphere: .getBoundingBox() target is now required');
+      target = new Box3();
+    }
+
+    if (this.isEmpty()) {
+      // Empty sphere produces empty bounding box
+      target.makeEmpty();
+      return target;
+    }
+
+    target.set(this.center, this.center);
+    target.expandByScalar(this.radius);
+    return target;
+  }
+
+  applyMatrix4(matrix) {
+    this.center.applyMatrix4(matrix);
+    this.radius = this.radius * matrix.getMaxScaleOnAxis();
+    return this;
+  }
+
+  translate(offset) {
+    this.center.add(offset);
+    return this;
+  }
+
+  equals(sphere) {
+    return sphere.center.equals(this.center) && sphere.radius === this.radius;
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+}
+
+exports.Sphere = Sphere;
+
+const _vector$2 =
+/*@__PURE__*/
+new Vector3();
+
+const _segCenter =
+/*@__PURE__*/
+new Vector3();
+
+const _segDir =
+/*@__PURE__*/
+new Vector3();
+
+const _diff =
+/*@__PURE__*/
+new Vector3();
+
+const _edge1 =
+/*@__PURE__*/
+new Vector3();
+
+const _edge2 =
+/*@__PURE__*/
+new Vector3();
+
+const _normal =
+/*@__PURE__*/
+new Vector3();
+
+class Ray {
+  constructor(origin = new Vector3(), direction = new Vector3(0, 0, -1)) {
+    this.origin = origin;
+    this.direction = direction;
+  }
+
+  set(origin, direction) {
+    this.origin.copy(origin);
+    this.direction.copy(direction);
+    return this;
+  }
+
+  copy(ray) {
+    this.origin.copy(ray.origin);
+    this.direction.copy(ray.direction);
+    return this;
+  }
+
+  at(t, target) {
+    if (target === undefined) {
+      console.warn('THREE.Ray: .at() target is now required');
+      target = new Vector3();
+    }
+
+    return target.copy(this.direction).multiplyScalar(t).add(this.origin);
+  }
+
+  lookAt(v) {
+    this.direction.copy(v).sub(this.origin).normalize();
+    return this;
+  }
+
+  recast(t) {
+    this.origin.copy(this.at(t, _vector$2));
+    return this;
+  }
+
+  closestPointToPoint(point, target) {
+    if (target === undefined) {
+      console.warn('THREE.Ray: .closestPointToPoint() target is now required');
+      target = new Vector3();
+    }
+
+    target.subVectors(point, this.origin);
+    const directionDistance = target.dot(this.direction);
+
+    if (directionDistance < 0) {
+      return target.copy(this.origin);
+    }
+
+    return target.copy(this.direction).multiplyScalar(directionDistance).add(this.origin);
+  }
+
+  distanceToPoint(point) {
+    return Math.sqrt(this.distanceSqToPoint(point));
+  }
+
+  distanceSqToPoint(point) {
+    const directionDistance = _vector$2.subVectors(point, this.origin).dot(this.direction); // point behind the ray
+
+
+    if (directionDistance < 0) {
+      return this.origin.distanceToSquared(point);
+    }
+
+    _vector$2.copy(this.direction).multiplyScalar(directionDistance).add(this.origin);
+
+    return _vector$2.distanceToSquared(point);
+  }
+
+  distanceSqToSegment(v0, v1, optionalPointOnRay, optionalPointOnSegment) {
+    // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h
+    // It returns the min distance between the ray and the segment
+    // defined by v0 and v1
+    // It can also set two optional targets :
+    // - The closest point on the ray
+    // - The closest point on the segment
+    _segCenter.copy(v0).add(v1).multiplyScalar(0.5);
+
+    _segDir.copy(v1).sub(v0).normalize();
+
+    _diff.copy(this.origin).sub(_segCenter);
+
+    const segExtent = v0.distanceTo(v1) * 0.5;
+    const a01 = -this.direction.dot(_segDir);
+
+    const b0 = _diff.dot(this.direction);
+
+    const b1 = -_diff.dot(_segDir);
+
+    const c = _diff.lengthSq();
+
+    const det = Math.abs(1 - a01 * a01);
+    let s0, s1, sqrDist, extDet;
+
+    if (det > 0) {
+      // The ray and segment are not parallel.
+      s0 = a01 * b1 - b0;
+      s1 = a01 * b0 - b1;
+      extDet = segExtent * det;
+
+      if (s0 >= 0) {
+        if (s1 >= -extDet) {
+          if (s1 <= extDet) {
+            // region 0
+            // Minimum at interior points of ray and segment.
+            const invDet = 1 / det;
+            s0 *= invDet;
+            s1 *= invDet;
+            sqrDist = s0 * (s0 + a01 * s1 + 2 * b0) + s1 * (a01 * s0 + s1 + 2 * b1) + c;
+          } else {
+            // region 1
+            s1 = segExtent;
+            s0 = Math.max(0, -(a01 * s1 + b0));
+            sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
+          }
+        } else {
+          // region 5
+          s1 = -segExtent;
+          s0 = Math.max(0, -(a01 * s1 + b0));
+          sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
+        }
+      } else {
+        if (s1 <= -extDet) {
+          // region 4
+          s0 = Math.max(0, -(-a01 * segExtent + b0));
+          s1 = s0 > 0 ? -segExtent : Math.min(Math.max(-segExtent, -b1), segExtent);
+          sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
+        } else if (s1 <= extDet) {
+          // region 3
+          s0 = 0;
+          s1 = Math.min(Math.max(-segExtent, -b1), segExtent);
+          sqrDist = s1 * (s1 + 2 * b1) + c;
+        } else {
+          // region 2
+          s0 = Math.max(0, -(a01 * segExtent + b0));
+          s1 = s0 > 0 ? segExtent : Math.min(Math.max(-segExtent, -b1), segExtent);
+          sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
+        }
+      }
+    } else {
+      // Ray and segment are parallel.
+      s1 = a01 > 0 ? -segExtent : segExtent;
+      s0 = Math.max(0, -(a01 * s1 + b0));
+      sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
+    }
+
+    if (optionalPointOnRay) {
+      optionalPointOnRay.copy(this.direction).multiplyScalar(s0).add(this.origin);
+    }
+
+    if (optionalPointOnSegment) {
+      optionalPointOnSegment.copy(_segDir).multiplyScalar(s1).add(_segCenter);
+    }
+
+    return sqrDist;
+  }
+
+  intersectSphere(sphere, target) {
+    _vector$2.subVectors(sphere.center, this.origin);
+
+    const tca = _vector$2.dot(this.direction);
+
+    const d2 = _vector$2.dot(_vector$2) - tca * tca;
+    const radius2 = sphere.radius * sphere.radius;
+    if (d2 > radius2) return null;
+    const thc = Math.sqrt(radius2 - d2); // t0 = first intersect point - entrance on front of sphere
+
+    const t0 = tca - thc; // t1 = second intersect point - exit point on back of sphere
+
+    const t1 = tca + thc; // test to see if both t0 and t1 are behind the ray - if so, return null
+
+    if (t0 < 0 && t1 < 0) return null; // test to see if t0 is behind the ray:
+    // if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
+    // in order to always return an intersect point that is in front of the ray.
+
+    if (t0 < 0) return this.at(t1, target); // else t0 is in front of the ray, so return the first collision point scaled by t0
+
+    return this.at(t0, target);
+  }
+
+  intersectsSphere(sphere) {
+    return this.distanceSqToPoint(sphere.center) <= sphere.radius * sphere.radius;
+  }
+
+  distanceToPlane(plane) {
+    const denominator = plane.normal.dot(this.direction);
+
+    if (denominator === 0) {
+      // line is coplanar, return origin
+      if (plane.distanceToPoint(this.origin) === 0) {
+        return 0;
+      } // Null is preferable to undefined since undefined means.... it is undefined
+
+
+      return null;
+    }
+
+    const t = -(this.origin.dot(plane.normal) + plane.constant) / denominator; // Return if the ray never intersects the plane
+
+    return t >= 0 ? t : null;
+  }
+
+  intersectPlane(plane, target) {
+    const t = this.distanceToPlane(plane);
+
+    if (t === null) {
+      return null;
+    }
+
+    return this.at(t, target);
+  }
+
+  intersectsPlane(plane) {
+    // check if the ray lies on the plane first
+    const distToPoint = plane.distanceToPoint(this.origin);
+
+    if (distToPoint === 0) {
+      return true;
+    }
+
+    const denominator = plane.normal.dot(this.direction);
+
+    if (denominator * distToPoint < 0) {
+      return true;
+    } // ray origin is behind the plane (and is pointing behind it)
+
+
+    return false;
+  }
+
+  intersectBox(box, target) {
+    let tmin, tmax, tymin, tymax, tzmin, tzmax;
+    const invdirx = 1 / this.direction.x,
+          invdiry = 1 / this.direction.y,
+          invdirz = 1 / this.direction.z;
+    const origin = this.origin;
+
+    if (invdirx >= 0) {
+      tmin = (box.min.x - origin.x) * invdirx;
+      tmax = (box.max.x - origin.x) * invdirx;
+    } else {
+      tmin = (box.max.x - origin.x) * invdirx;
+      tmax = (box.min.x - origin.x) * invdirx;
+    }
+
+    if (invdiry >= 0) {
+      tymin = (box.min.y - origin.y) * invdiry;
+      tymax = (box.max.y - origin.y) * invdiry;
+    } else {
+      tymin = (box.max.y - origin.y) * invdiry;
+      tymax = (box.min.y - origin.y) * invdiry;
+    }
+
+    if (tmin > tymax || tymin > tmax) return null; // These lines also handle the case where tmin or tmax is NaN
+    // (result of 0 * Infinity). x !== x returns true if x is NaN
+
+    if (tymin > tmin || tmin !== tmin) tmin = tymin;
+    if (tymax < tmax || tmax !== tmax) tmax = tymax;
+
+    if (invdirz >= 0) {
+      tzmin = (box.min.z - origin.z) * invdirz;
+      tzmax = (box.max.z - origin.z) * invdirz;
+    } else {
+      tzmin = (box.max.z - origin.z) * invdirz;
+      tzmax = (box.min.z - origin.z) * invdirz;
+    }
+
+    if (tmin > tzmax || tzmin > tmax) return null;
+    if (tzmin > tmin || tmin !== tmin) tmin = tzmin;
+    if (tzmax < tmax || tmax !== tmax) tmax = tzmax; //return point closest to the ray (positive side)
+
+    if (tmax < 0) return null;
+    return this.at(tmin >= 0 ? tmin : tmax, target);
+  }
+
+  intersectsBox(box) {
+    return this.intersectBox(box, _vector$2) !== null;
+  }
+
+  intersectTriangle(a, b, c, backfaceCulling, target) {
+    // Compute the offset origin, edges, and normal.
+    // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h
+    _edge1.subVectors(b, a);
+
+    _edge2.subVectors(c, a);
+
+    _normal.crossVectors(_edge1, _edge2); // Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
+    // E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
+    //   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
+    //   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
+    //   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
+
+
+    let DdN = this.direction.dot(_normal);
+    let sign;
+
+    if (DdN > 0) {
+      if (backfaceCulling) return null;
+      sign = 1;
+    } else if (DdN < 0) {
+      sign = -1;
+      DdN = -DdN;
+    } else {
+      return null;
+    }
+
+    _diff.subVectors(this.origin, a);
+
+    const DdQxE2 = sign * this.direction.dot(_edge2.crossVectors(_diff, _edge2)); // b1 < 0, no intersection
+
+    if (DdQxE2 < 0) {
+      return null;
+    }
+
+    const DdE1xQ = sign * this.direction.dot(_edge1.cross(_diff)); // b2 < 0, no intersection
+
+    if (DdE1xQ < 0) {
+      return null;
+    } // b1+b2 > 1, no intersection
+
+
+    if (DdQxE2 + DdE1xQ > DdN) {
+      return null;
+    } // Line intersects triangle, check if ray does.
+
+
+    const QdN = -sign * _diff.dot(_normal); // t < 0, no intersection
+
+
+    if (QdN < 0) {
+      return null;
+    } // Ray intersects triangle.
+
+
+    return this.at(QdN / DdN, target);
+  }
+
+  applyMatrix4(matrix4) {
+    this.origin.applyMatrix4(matrix4);
+    this.direction.transformDirection(matrix4);
+    return this;
+  }
+
+  equals(ray) {
+    return ray.origin.equals(this.origin) && ray.direction.equals(this.direction);
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+}
+
+exports.Ray = Ray;
+
+class Matrix4 {
+  constructor() {
+    this.elements = [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1];
+
+    if (arguments.length > 0) {
+      console.error('THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.');
+    }
+  }
+
+  set(n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44) {
+    const te = this.elements;
+    te[0] = n11;
+    te[4] = n12;
+    te[8] = n13;
+    te[12] = n14;
+    te[1] = n21;
+    te[5] = n22;
+    te[9] = n23;
+    te[13] = n24;
+    te[2] = n31;
+    te[6] = n32;
+    te[10] = n33;
+    te[14] = n34;
+    te[3] = n41;
+    te[7] = n42;
+    te[11] = n43;
+    te[15] = n44;
+    return this;
+  }
+
+  identity() {
+    this.set(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    return this;
+  }
+
+  clone() {
+    return new Matrix4().fromArray(this.elements);
+  }
+
+  copy(m) {
+    const te = this.elements;
+    const me = m.elements;
+    te[0] = me[0];
+    te[1] = me[1];
+    te[2] = me[2];
+    te[3] = me[3];
+    te[4] = me[4];
+    te[5] = me[5];
+    te[6] = me[6];
+    te[7] = me[7];
+    te[8] = me[8];
+    te[9] = me[9];
+    te[10] = me[10];
+    te[11] = me[11];
+    te[12] = me[12];
+    te[13] = me[13];
+    te[14] = me[14];
+    te[15] = me[15];
+    return this;
+  }
+
+  copyPosition(m) {
+    const te = this.elements,
+          me = m.elements;
+    te[12] = me[12];
+    te[13] = me[13];
+    te[14] = me[14];
+    return this;
+  }
+
+  setFromMatrix3(m) {
+    const me = m.elements;
+    this.set(me[0], me[3], me[6], 0, me[1], me[4], me[7], 0, me[2], me[5], me[8], 0, 0, 0, 0, 1);
+    return this;
+  }
+
+  extractBasis(xAxis, yAxis, zAxis) {
+    xAxis.setFromMatrixColumn(this, 0);
+    yAxis.setFromMatrixColumn(this, 1);
+    zAxis.setFromMatrixColumn(this, 2);
+    return this;
+  }
+
+  makeBasis(xAxis, yAxis, zAxis) {
+    this.set(xAxis.x, yAxis.x, zAxis.x, 0, xAxis.y, yAxis.y, zAxis.y, 0, xAxis.z, yAxis.z, zAxis.z, 0, 0, 0, 0, 1);
+    return this;
+  }
+
+  extractRotation(m) {
+    // this method does not support reflection matrices
+    const te = this.elements;
+    const me = m.elements;
+
+    const scaleX = 1 / _v1$1.setFromMatrixColumn(m, 0).length();
+
+    const scaleY = 1 / _v1$1.setFromMatrixColumn(m, 1).length();
+
+    const scaleZ = 1 / _v1$1.setFromMatrixColumn(m, 2).length();
+
+    te[0] = me[0] * scaleX;
+    te[1] = me[1] * scaleX;
+    te[2] = me[2] * scaleX;
+    te[3] = 0;
+    te[4] = me[4] * scaleY;
+    te[5] = me[5] * scaleY;
+    te[6] = me[6] * scaleY;
+    te[7] = 0;
+    te[8] = me[8] * scaleZ;
+    te[9] = me[9] * scaleZ;
+    te[10] = me[10] * scaleZ;
+    te[11] = 0;
+    te[12] = 0;
+    te[13] = 0;
+    te[14] = 0;
+    te[15] = 1;
+    return this;
+  }
+
+  makeRotationFromEuler(euler) {
+    if (!(euler && euler.isEuler)) {
+      console.error('THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.');
+    }
+
+    const te = this.elements;
+    const x = euler.x,
+          y = euler.y,
+          z = euler.z;
+    const a = Math.cos(x),
+          b = Math.sin(x);
+    const c = Math.cos(y),
+          d = Math.sin(y);
+    const e = Math.cos(z),
+          f = Math.sin(z);
+
+    if (euler.order === 'XYZ') {
+      const ae = a * e,
+            af = a * f,
+            be = b * e,
+            bf = b * f;
+      te[0] = c * e;
+      te[4] = -c * f;
+      te[8] = d;
+      te[1] = af + be * d;
+      te[5] = ae - bf * d;
+      te[9] = -b * c;
+      te[2] = bf - ae * d;
+      te[6] = be + af * d;
+      te[10] = a * c;
+    } else if (euler.order === 'YXZ') {
+      const ce = c * e,
+            cf = c * f,
+            de = d * e,
+            df = d * f;
+      te[0] = ce + df * b;
+      te[4] = de * b - cf;
+      te[8] = a * d;
+      te[1] = a * f;
+      te[5] = a * e;
+      te[9] = -b;
+      te[2] = cf * b - de;
+      te[6] = df + ce * b;
+      te[10] = a * c;
+    } else if (euler.order === 'ZXY') {
+      const ce = c * e,
+            cf = c * f,
+            de = d * e,
+            df = d * f;
+      te[0] = ce - df * b;
+      te[4] = -a * f;
+      te[8] = de + cf * b;
+      te[1] = cf + de * b;
+      te[5] = a * e;
+      te[9] = df - ce * b;
+      te[2] = -a * d;
+      te[6] = b;
+      te[10] = a * c;
+    } else if (euler.order === 'ZYX') {
+      const ae = a * e,
+            af = a * f,
+            be = b * e,
+            bf = b * f;
+      te[0] = c * e;
+      te[4] = be * d - af;
+      te[8] = ae * d + bf;
+      te[1] = c * f;
+      te[5] = bf * d + ae;
+      te[9] = af * d - be;
+      te[2] = -d;
+      te[6] = b * c;
+      te[10] = a * c;
+    } else if (euler.order === 'YZX') {
+      const ac = a * c,
+            ad = a * d,
+            bc = b * c,
+            bd = b * d;
+      te[0] = c * e;
+      te[4] = bd - ac * f;
+      te[8] = bc * f + ad;
+      te[1] = f;
+      te[5] = a * e;
+      te[9] = -b * e;
+      te[2] = -d * e;
+      te[6] = ad * f + bc;
+      te[10] = ac - bd * f;
+    } else if (euler.order === 'XZY') {
+      const ac = a * c,
+            ad = a * d,
+            bc = b * c,
+            bd = b * d;
+      te[0] = c * e;
+      te[4] = -f;
+      te[8] = d * e;
+      te[1] = ac * f + bd;
+      te[5] = a * e;
+      te[9] = ad * f - bc;
+      te[2] = bc * f - ad;
+      te[6] = b * e;
+      te[10] = bd * f + ac;
+    } // bottom row
+
+
+    te[3] = 0;
+    te[7] = 0;
+    te[11] = 0; // last column
+
+    te[12] = 0;
+    te[13] = 0;
+    te[14] = 0;
+    te[15] = 1;
+    return this;
+  }
+
+  makeRotationFromQuaternion(q) {
+    return this.compose(_zero, q, _one);
+  }
+
+  lookAt(eye, target, up) {
+    const te = this.elements;
+
+    _z.subVectors(eye, target);
+
+    if (_z.lengthSq() === 0) {
+      // eye and target are in the same position
+      _z.z = 1;
+    }
+
+    _z.normalize();
+
+    _x.crossVectors(up, _z);
+
+    if (_x.lengthSq() === 0) {
+      // up and z are parallel
+      if (Math.abs(up.z) === 1) {
+        _z.x += 0.0001;
+      } else {
+        _z.z += 0.0001;
+      }
+
+      _z.normalize();
+
+      _x.crossVectors(up, _z);
+    }
+
+    _x.normalize();
+
+    _y.crossVectors(_z, _x);
+
+    te[0] = _x.x;
+    te[4] = _y.x;
+    te[8] = _z.x;
+    te[1] = _x.y;
+    te[5] = _y.y;
+    te[9] = _z.y;
+    te[2] = _x.z;
+    te[6] = _y.z;
+    te[10] = _z.z;
+    return this;
+  }
+
+  multiply(m, n) {
+    if (n !== undefined) {
+      console.warn('THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.');
+      return this.multiplyMatrices(m, n);
+    }
+
+    return this.multiplyMatrices(this, m);
+  }
+
+  premultiply(m) {
+    return this.multiplyMatrices(m, this);
+  }
+
+  multiplyMatrices(a, b) {
+    const ae = a.elements;
+    const be = b.elements;
+    const te = this.elements;
+    const a11 = ae[0],
+          a12 = ae[4],
+          a13 = ae[8],
+          a14 = ae[12];
+    const a21 = ae[1],
+          a22 = ae[5],
+          a23 = ae[9],
+          a24 = ae[13];
+    const a31 = ae[2],
+          a32 = ae[6],
+          a33 = ae[10],
+          a34 = ae[14];
+    const a41 = ae[3],
+          a42 = ae[7],
+          a43 = ae[11],
+          a44 = ae[15];
+    const b11 = be[0],
+          b12 = be[4],
+          b13 = be[8],
+          b14 = be[12];
+    const b21 = be[1],
+          b22 = be[5],
+          b23 = be[9],
+          b24 = be[13];
+    const b31 = be[2],
+          b32 = be[6],
+          b33 = be[10],
+          b34 = be[14];
+    const b41 = be[3],
+          b42 = be[7],
+          b43 = be[11],
+          b44 = be[15];
+    te[0] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
+    te[4] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
+    te[8] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
+    te[12] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;
+    te[1] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
+    te[5] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
+    te[9] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
+    te[13] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;
+    te[2] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
+    te[6] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
+    te[10] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
+    te[14] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;
+    te[3] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
+    te[7] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
+    te[11] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
+    te[15] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;
+    return this;
+  }
+
+  multiplyScalar(s) {
+    const te = this.elements;
+    te[0] *= s;
+    te[4] *= s;
+    te[8] *= s;
+    te[12] *= s;
+    te[1] *= s;
+    te[5] *= s;
+    te[9] *= s;
+    te[13] *= s;
+    te[2] *= s;
+    te[6] *= s;
+    te[10] *= s;
+    te[14] *= s;
+    te[3] *= s;
+    te[7] *= s;
+    te[11] *= s;
+    te[15] *= s;
+    return this;
+  }
+
+  determinant() {
+    const te = this.elements;
+    const n11 = te[0],
+          n12 = te[4],
+          n13 = te[8],
+          n14 = te[12];
+    const n21 = te[1],
+          n22 = te[5],
+          n23 = te[9],
+          n24 = te[13];
+    const n31 = te[2],
+          n32 = te[6],
+          n33 = te[10],
+          n34 = te[14];
+    const n41 = te[3],
+          n42 = te[7],
+          n43 = te[11],
+          n44 = te[15]; //TODO: make this more efficient
+    //( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )
+
+    return n41 * (+n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34) + n42 * (+n11 * n23 * n34 - n11 * n24 * n33 + n14 * n21 * n33 - n13 * n21 * n34 + n13 * n24 * n31 - n14 * n23 * n31) + n43 * (+n11 * n24 * n32 - n11 * n22 * n34 - n14 * n21 * n32 + n12 * n21 * n34 + n14 * n22 * n31 - n12 * n24 * n31) + n44 * (-n13 * n22 * n31 - n11 * n23 * n32 + n11 * n22 * n33 + n13 * n21 * n32 - n12 * n21 * n33 + n12 * n23 * n31);
+  }
+
+  transpose() {
+    const te = this.elements;
+    let tmp;
+    tmp = te[1];
+    te[1] = te[4];
+    te[4] = tmp;
+    tmp = te[2];
+    te[2] = te[8];
+    te[8] = tmp;
+    tmp = te[6];
+    te[6] = te[9];
+    te[9] = tmp;
+    tmp = te[3];
+    te[3] = te[12];
+    te[12] = tmp;
+    tmp = te[7];
+    te[7] = te[13];
+    te[13] = tmp;
+    tmp = te[11];
+    te[11] = te[14];
+    te[14] = tmp;
+    return this;
+  }
+
+  setPosition(x, y, z) {
+    const te = this.elements;
+
+    if (x.isVector3) {
+      te[12] = x.x;
+      te[13] = x.y;
+      te[14] = x.z;
+    } else {
+      te[12] = x;
+      te[13] = y;
+      te[14] = z;
+    }
+
+    return this;
+  }
+
+  invert() {
+    // based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
+    const te = this.elements,
+          n11 = te[0],
+          n21 = te[1],
+          n31 = te[2],
+          n41 = te[3],
+          n12 = te[4],
+          n22 = te[5],
+          n32 = te[6],
+          n42 = te[7],
+          n13 = te[8],
+          n23 = te[9],
+          n33 = te[10],
+          n43 = te[11],
+          n14 = te[12],
+          n24 = te[13],
+          n34 = te[14],
+          n44 = te[15],
+          t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
+          t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
+          t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
+          t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;
+    const det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;
+    if (det === 0) return this.set(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    const detInv = 1 / det;
+    te[0] = t11 * detInv;
+    te[1] = (n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44) * detInv;
+    te[2] = (n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44) * detInv;
+    te[3] = (n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43) * detInv;
+    te[4] = t12 * detInv;
+    te[5] = (n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44) * detInv;
+    te[6] = (n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44) * detInv;
+    te[7] = (n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43) * detInv;
+    te[8] = t13 * detInv;
+    te[9] = (n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44) * detInv;
+    te[10] = (n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44) * detInv;
+    te[11] = (n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43) * detInv;
+    te[12] = t14 * detInv;
+    te[13] = (n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34) * detInv;
+    te[14] = (n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34) * detInv;
+    te[15] = (n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33) * detInv;
+    return this;
+  }
+
+  scale(v) {
+    const te = this.elements;
+    const x = v.x,
+          y = v.y,
+          z = v.z;
+    te[0] *= x;
+    te[4] *= y;
+    te[8] *= z;
+    te[1] *= x;
+    te[5] *= y;
+    te[9] *= z;
+    te[2] *= x;
+    te[6] *= y;
+    te[10] *= z;
+    te[3] *= x;
+    te[7] *= y;
+    te[11] *= z;
+    return this;
+  }
+
+  getMaxScaleOnAxis() {
+    const te = this.elements;
+    const scaleXSq = te[0] * te[0] + te[1] * te[1] + te[2] * te[2];
+    const scaleYSq = te[4] * te[4] + te[5] * te[5] + te[6] * te[6];
+    const scaleZSq = te[8] * te[8] + te[9] * te[9] + te[10] * te[10];
+    return Math.sqrt(Math.max(scaleXSq, scaleYSq, scaleZSq));
+  }
+
+  makeTranslation(x, y, z) {
+    this.set(1, 0, 0, x, 0, 1, 0, y, 0, 0, 1, z, 0, 0, 0, 1);
+    return this;
+  }
+
+  makeRotationX(theta) {
+    const c = Math.cos(theta),
+          s = Math.sin(theta);
+    this.set(1, 0, 0, 0, 0, c, -s, 0, 0, s, c, 0, 0, 0, 0, 1);
+    return this;
+  }
+
+  makeRotationY(theta) {
+    const c = Math.cos(theta),
+          s = Math.sin(theta);
+    this.set(c, 0, s, 0, 0, 1, 0, 0, -s, 0, c, 0, 0, 0, 0, 1);
+    return this;
+  }
+
+  makeRotationZ(theta) {
+    const c = Math.cos(theta),
+          s = Math.sin(theta);
+    this.set(c, -s, 0, 0, s, c, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    return this;
+  }
+
+  makeRotationAxis(axis, angle) {
+    // Based on http://www.gamedev.net/reference/articles/article1199.asp
+    const c = Math.cos(angle);
+    const s = Math.sin(angle);
+    const t = 1 - c;
+    const x = axis.x,
+          y = axis.y,
+          z = axis.z;
+    const tx = t * x,
+          ty = t * y;
+    this.set(tx * x + c, tx * y - s * z, tx * z + s * y, 0, tx * y + s * z, ty * y + c, ty * z - s * x, 0, tx * z - s * y, ty * z + s * x, t * z * z + c, 0, 0, 0, 0, 1);
+    return this;
+  }
+
+  makeScale(x, y, z) {
+    this.set(x, 0, 0, 0, 0, y, 0, 0, 0, 0, z, 0, 0, 0, 0, 1);
+    return this;
+  }
+
+  makeShear(x, y, z) {
+    this.set(1, y, z, 0, x, 1, z, 0, x, y, 1, 0, 0, 0, 0, 1);
+    return this;
+  }
+
+  compose(position, quaternion, scale) {
+    const te = this.elements;
+    const x = quaternion._x,
+          y = quaternion._y,
+          z = quaternion._z,
+          w = quaternion._w;
+    const x2 = x + x,
+          y2 = y + y,
+          z2 = z + z;
+    const xx = x * x2,
+          xy = x * y2,
+          xz = x * z2;
+    const yy = y * y2,
+          yz = y * z2,
+          zz = z * z2;
+    const wx = w * x2,
+          wy = w * y2,
+          wz = w * z2;
+    const sx = scale.x,
+          sy = scale.y,
+          sz = scale.z;
+    te[0] = (1 - (yy + zz)) * sx;
+    te[1] = (xy + wz) * sx;
+    te[2] = (xz - wy) * sx;
+    te[3] = 0;
+    te[4] = (xy - wz) * sy;
+    te[5] = (1 - (xx + zz)) * sy;
+    te[6] = (yz + wx) * sy;
+    te[7] = 0;
+    te[8] = (xz + wy) * sz;
+    te[9] = (yz - wx) * sz;
+    te[10] = (1 - (xx + yy)) * sz;
+    te[11] = 0;
+    te[12] = position.x;
+    te[13] = position.y;
+    te[14] = position.z;
+    te[15] = 1;
+    return this;
+  }
+
+  decompose(position, quaternion, scale) {
+    const te = this.elements;
+
+    let sx = _v1$1.set(te[0], te[1], te[2]).length();
+
+    const sy = _v1$1.set(te[4], te[5], te[6]).length();
+
+    const sz = _v1$1.set(te[8], te[9], te[10]).length(); // if determine is negative, we need to invert one scale
+
+
+    const det = this.determinant();
+    if (det < 0) sx = -sx;
+    position.x = te[12];
+    position.y = te[13];
+    position.z = te[14]; // scale the rotation part
+
+    _m1.copy(this);
+
+    const invSX = 1 / sx;
+    const invSY = 1 / sy;
+    const invSZ = 1 / sz;
+    _m1.elements[0] *= invSX;
+    _m1.elements[1] *= invSX;
+    _m1.elements[2] *= invSX;
+    _m1.elements[4] *= invSY;
+    _m1.elements[5] *= invSY;
+    _m1.elements[6] *= invSY;
+    _m1.elements[8] *= invSZ;
+    _m1.elements[9] *= invSZ;
+    _m1.elements[10] *= invSZ;
+    quaternion.setFromRotationMatrix(_m1);
+    scale.x = sx;
+    scale.y = sy;
+    scale.z = sz;
+    return this;
+  }
+
+  makePerspective(left, right, top, bottom, near, far) {
+    if (far === undefined) {
+      console.warn('THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.');
+    }
+
+    const te = this.elements;
+    const x = 2 * near / (right - left);
+    const y = 2 * near / (top - bottom);
+    const a = (right + left) / (right - left);
+    const b = (top + bottom) / (top - bottom);
+    const c = -(far + near) / (far - near);
+    const d = -2 * far * near / (far - near);
+    te[0] = x;
+    te[4] = 0;
+    te[8] = a;
+    te[12] = 0;
+    te[1] = 0;
+    te[5] = y;
+    te[9] = b;
+    te[13] = 0;
+    te[2] = 0;
+    te[6] = 0;
+    te[10] = c;
+    te[14] = d;
+    te[3] = 0;
+    te[7] = 0;
+    te[11] = -1;
+    te[15] = 0;
+    return this;
+  }
+
+  makeOrthographic(left, right, top, bottom, near, far) {
+    const te = this.elements;
+    const w = 1.0 / (right - left);
+    const h = 1.0 / (top - bottom);
+    const p = 1.0 / (far - near);
+    const x = (right + left) * w;
+    const y = (top + bottom) * h;
+    const z = (far + near) * p;
+    te[0] = 2 * w;
+    te[4] = 0;
+    te[8] = 0;
+    te[12] = -x;
+    te[1] = 0;
+    te[5] = 2 * h;
+    te[9] = 0;
+    te[13] = -y;
+    te[2] = 0;
+    te[6] = 0;
+    te[10] = -2 * p;
+    te[14] = -z;
+    te[3] = 0;
+    te[7] = 0;
+    te[11] = 0;
+    te[15] = 1;
+    return this;
+  }
+
+  equals(matrix) {
+    const te = this.elements;
+    const me = matrix.elements;
+
+    for (let i = 0; i < 16; i++) {
+      if (te[i] !== me[i]) return false;
+    }
+
+    return true;
+  }
+
+  fromArray(array, offset = 0) {
+    for (let i = 0; i < 16; i++) {
+      this.elements[i] = array[i + offset];
+    }
+
+    return this;
+  }
+
+  toArray(array = [], offset = 0) {
+    const te = this.elements;
+    array[offset] = te[0];
+    array[offset + 1] = te[1];
+    array[offset + 2] = te[2];
+    array[offset + 3] = te[3];
+    array[offset + 4] = te[4];
+    array[offset + 5] = te[5];
+    array[offset + 6] = te[6];
+    array[offset + 7] = te[7];
+    array[offset + 8] = te[8];
+    array[offset + 9] = te[9];
+    array[offset + 10] = te[10];
+    array[offset + 11] = te[11];
+    array[offset + 12] = te[12];
+    array[offset + 13] = te[13];
+    array[offset + 14] = te[14];
+    array[offset + 15] = te[15];
+    return array;
+  }
+
+}
+
+exports.Matrix4 = Matrix4;
+Matrix4.prototype.isMatrix4 = true;
+
+const _v1$1 =
+/*@__PURE__*/
+new Vector3();
+
+const _m1 =
+/*@__PURE__*/
+new Matrix4();
+
+const _zero =
+/*@__PURE__*/
+new Vector3(0, 0, 0);
+
+const _one =
+/*@__PURE__*/
+new Vector3(1, 1, 1);
+
+const _x =
+/*@__PURE__*/
+new Vector3();
+
+const _y =
+/*@__PURE__*/
+new Vector3();
+
+const _z =
+/*@__PURE__*/
+new Vector3();
+
+const _matrix =
+/*@__PURE__*/
+new Matrix4();
+
+const _quaternion$1 =
+/*@__PURE__*/
+new Quaternion();
+
+class Euler {
+  constructor(x = 0, y = 0, z = 0, order = Euler.DefaultOrder) {
+    this._x = x;
+    this._y = y;
+    this._z = z;
+    this._order = order;
+  }
+
+  get x() {
+    return this._x;
+  }
+
+  set x(value) {
+    this._x = value;
+
+    this._onChangeCallback();
+  }
+
+  get y() {
+    return this._y;
+  }
+
+  set y(value) {
+    this._y = value;
+
+    this._onChangeCallback();
+  }
+
+  get z() {
+    return this._z;
+  }
+
+  set z(value) {
+    this._z = value;
+
+    this._onChangeCallback();
+  }
+
+  get order() {
+    return this._order;
+  }
+
+  set order(value) {
+    this._order = value;
+
+    this._onChangeCallback();
+  }
+
+  set(x, y, z, order) {
+    this._x = x;
+    this._y = y;
+    this._z = z;
+    this._order = order || this._order;
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  clone() {
+    return new this.constructor(this._x, this._y, this._z, this._order);
+  }
+
+  copy(euler) {
+    this._x = euler._x;
+    this._y = euler._y;
+    this._z = euler._z;
+    this._order = euler._order;
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  setFromRotationMatrix(m, order, update) {
+    const clamp = MathUtils.clamp; // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+
+    const te = m.elements;
+    const m11 = te[0],
+          m12 = te[4],
+          m13 = te[8];
+    const m21 = te[1],
+          m22 = te[5],
+          m23 = te[9];
+    const m31 = te[2],
+          m32 = te[6],
+          m33 = te[10];
+    order = order || this._order;
+
+    switch (order) {
+      case 'XYZ':
+        this._y = Math.asin(clamp(m13, -1, 1));
+
+        if (Math.abs(m13) < 0.9999999) {
+          this._x = Math.atan2(-m23, m33);
+          this._z = Math.atan2(-m12, m11);
+        } else {
+          this._x = Math.atan2(m32, m22);
+          this._z = 0;
+        }
+
+        break;
+
+      case 'YXZ':
+        this._x = Math.asin(-clamp(m23, -1, 1));
+
+        if (Math.abs(m23) < 0.9999999) {
+          this._y = Math.atan2(m13, m33);
+          this._z = Math.atan2(m21, m22);
+        } else {
+          this._y = Math.atan2(-m31, m11);
+          this._z = 0;
+        }
+
+        break;
+
+      case 'ZXY':
+        this._x = Math.asin(clamp(m32, -1, 1));
+
+        if (Math.abs(m32) < 0.9999999) {
+          this._y = Math.atan2(-m31, m33);
+          this._z = Math.atan2(-m12, m22);
+        } else {
+          this._y = 0;
+          this._z = Math.atan2(m21, m11);
+        }
+
+        break;
+
+      case 'ZYX':
+        this._y = Math.asin(-clamp(m31, -1, 1));
+
+        if (Math.abs(m31) < 0.9999999) {
+          this._x = Math.atan2(m32, m33);
+          this._z = Math.atan2(m21, m11);
+        } else {
+          this._x = 0;
+          this._z = Math.atan2(-m12, m22);
+        }
+
+        break;
+
+      case 'YZX':
+        this._z = Math.asin(clamp(m21, -1, 1));
+
+        if (Math.abs(m21) < 0.9999999) {
+          this._x = Math.atan2(-m23, m22);
+          this._y = Math.atan2(-m31, m11);
+        } else {
+          this._x = 0;
+          this._y = Math.atan2(m13, m33);
+        }
+
+        break;
+
+      case 'XZY':
+        this._z = Math.asin(-clamp(m12, -1, 1));
+
+        if (Math.abs(m12) < 0.9999999) {
+          this._x = Math.atan2(m32, m22);
+          this._y = Math.atan2(m13, m11);
+        } else {
+          this._x = Math.atan2(-m23, m33);
+          this._y = 0;
+        }
+
+        break;
+
+      default:
+        console.warn('THREE.Euler: .setFromRotationMatrix() encountered an unknown order: ' + order);
+    }
+
+    this._order = order;
+    if (update !== false) this._onChangeCallback();
+    return this;
+  }
+
+  setFromQuaternion(q, order, update) {
+    _matrix.makeRotationFromQuaternion(q);
+
+    return this.setFromRotationMatrix(_matrix, order, update);
+  }
+
+  setFromVector3(v, order) {
+    return this.set(v.x, v.y, v.z, order || this._order);
+  }
+
+  reorder(newOrder) {
+    // WARNING: this discards revolution information -bhouston
+    _quaternion$1.setFromEuler(this);
+
+    return this.setFromQuaternion(_quaternion$1, newOrder);
+  }
+
+  equals(euler) {
+    return euler._x === this._x && euler._y === this._y && euler._z === this._z && euler._order === this._order;
+  }
+
+  fromArray(array) {
+    this._x = array[0];
+    this._y = array[1];
+    this._z = array[2];
+    if (array[3] !== undefined) this._order = array[3];
+
+    this._onChangeCallback();
+
+    return this;
+  }
+
+  toArray(array = [], offset = 0) {
+    array[offset] = this._x;
+    array[offset + 1] = this._y;
+    array[offset + 2] = this._z;
+    array[offset + 3] = this._order;
+    return array;
+  }
+
+  toVector3(optionalResult) {
+    if (optionalResult) {
+      return optionalResult.set(this._x, this._y, this._z);
+    } else {
+      return new Vector3(this._x, this._y, this._z);
+    }
+  }
+
+  _onChange(callback) {
+    this._onChangeCallback = callback;
+    return this;
+  }
+
+  _onChangeCallback() {}
+
+}
+
+exports.Euler = Euler;
+Euler.prototype.isEuler = true;
+Euler.DefaultOrder = 'XYZ';
+Euler.RotationOrders = ['XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX'];
+
+class Layers {
+  constructor() {
+    this.mask = 1 | 0;
+  }
+
+  set(channel) {
+    this.mask = 1 << channel | 0;
+  }
+
+  enable(channel) {
+    this.mask |= 1 << channel | 0;
+  }
+
+  enableAll() {
+    this.mask = 0xffffffff | 0;
+  }
+
+  toggle(channel) {
+    this.mask ^= 1 << channel | 0;
+  }
+
+  disable(channel) {
+    this.mask &= ~(1 << channel | 0);
+  }
+
+  disableAll() {
+    this.mask = 0;
+  }
+
+  test(layers) {
+    return (this.mask & layers.mask) !== 0;
+  }
+
+}
+
+exports.Layers = Layers;
+let _object3DId = 0;
+
+const _v1$2 = new Vector3();
+
+const _q1 = new Quaternion();
+
+const _m1$1 = new Matrix4();
+
+const _target = new Vector3();
+
+const _position = new Vector3();
+
+const _scale = new Vector3();
+
+const _quaternion$2 = new Quaternion();
+
+const _xAxis = new Vector3(1, 0, 0);
+
+const _yAxis = new Vector3(0, 1, 0);
+
+const _zAxis = new Vector3(0, 0, 1);
+
+const _addedEvent = {
+  type: 'added'
+};
+const _removedEvent = {
+  type: 'removed'
+};
+
+function Object3D() {
+  Object.defineProperty(this, 'id', {
+    value: _object3DId++
+  });
+  this.uuid = MathUtils.generateUUID();
+  this.name = '';
+  this.type = 'Object3D';
+  this.parent = null;
+  this.children = [];
+  this.up = Object3D.DefaultUp.clone();
+  const position = new Vector3();
+  const rotation = new Euler();
+  const quaternion = new Quaternion();
+  const scale = new Vector3(1, 1, 1);
+
+  function onRotationChange() {
+    quaternion.setFromEuler(rotation, false);
+  }
+
+  function onQuaternionChange() {
+    rotation.setFromQuaternion(quaternion, undefined, false);
+  }
+
+  rotation._onChange(onRotationChange);
+
+  quaternion._onChange(onQuaternionChange);
+
+  Object.defineProperties(this, {
+    position: {
+      configurable: true,
+      enumerable: true,
+      value: position
+    },
+    rotation: {
+      configurable: true,
+      enumerable: true,
+      value: rotation
+    },
+    quaternion: {
+      configurable: true,
+      enumerable: true,
+      value: quaternion
+    },
+    scale: {
+      configurable: true,
+      enumerable: true,
+      value: scale
+    },
+    modelViewMatrix: {
+      value: new Matrix4()
+    },
+    normalMatrix: {
+      value: new Matrix3()
+    }
+  });
+  this.matrix = new Matrix4();
+  this.matrixWorld = new Matrix4();
+  this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
+  this.matrixWorldNeedsUpdate = false;
+  this.layers = new Layers();
+  this.visible = true;
+  this.castShadow = false;
+  this.receiveShadow = false;
+  this.frustumCulled = true;
+  this.renderOrder = 0;
+  this.animations = [];
+  this.userData = {};
+}
+
+Object3D.DefaultUp = new Vector3(0, 1, 0);
+Object3D.DefaultMatrixAutoUpdate = true;
+Object3D.prototype = Object.assign(Object.create(EventDispatcher.prototype), {
+  constructor: Object3D,
+  isObject3D: true,
+  onBeforeRender: function () {},
+  onAfterRender: function () {},
+  applyMatrix4: function (matrix) {
+    if (this.matrixAutoUpdate) this.updateMatrix();
+    this.matrix.premultiply(matrix);
+    this.matrix.decompose(this.position, this.quaternion, this.scale);
+  },
+  applyQuaternion: function (q) {
+    this.quaternion.premultiply(q);
+    return this;
+  },
+  setRotationFromAxisAngle: function (axis, angle) {
+    // assumes axis is normalized
+    this.quaternion.setFromAxisAngle(axis, angle);
+  },
+  setRotationFromEuler: function (euler) {
+    this.quaternion.setFromEuler(euler, true);
+  },
+  setRotationFromMatrix: function (m) {
+    // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+    this.quaternion.setFromRotationMatrix(m);
+  },
+  setRotationFromQuaternion: function (q) {
+    // assumes q is normalized
+    this.quaternion.copy(q);
+  },
+  rotateOnAxis: function (axis, angle) {
+    // rotate object on axis in object space
+    // axis is assumed to be normalized
+    _q1.setFromAxisAngle(axis, angle);
+
+    this.quaternion.multiply(_q1);
+    return this;
+  },
+  rotateOnWorldAxis: function (axis, angle) {
+    // rotate object on axis in world space
+    // axis is assumed to be normalized
+    // method assumes no rotated parent
+    _q1.setFromAxisAngle(axis, angle);
+
+    this.quaternion.premultiply(_q1);
+    return this;
+  },
+  rotateX: function (angle) {
+    return this.rotateOnAxis(_xAxis, angle);
+  },
+  rotateY: function (angle) {
+    return this.rotateOnAxis(_yAxis, angle);
+  },
+  rotateZ: function (angle) {
+    return this.rotateOnAxis(_zAxis, angle);
+  },
+  translateOnAxis: function (axis, distance) {
+    // translate object by distance along axis in object space
+    // axis is assumed to be normalized
+    _v1$2.copy(axis).applyQuaternion(this.quaternion);
+
+    this.position.add(_v1$2.multiplyScalar(distance));
+    return this;
+  },
+  translateX: function (distance) {
+    return this.translateOnAxis(_xAxis, distance);
+  },
+  translateY: function (distance) {
+    return this.translateOnAxis(_yAxis, distance);
+  },
+  translateZ: function (distance) {
+    return this.translateOnAxis(_zAxis, distance);
+  },
+  localToWorld: function (vector) {
+    return vector.applyMatrix4(this.matrixWorld);
+  },
+  worldToLocal: function (vector) {
+    return vector.applyMatrix4(_m1$1.copy(this.matrixWorld).invert());
+  },
+  lookAt: function (x, y, z) {
+    // This method does not support objects having non-uniformly-scaled parent(s)
+    if (x.isVector3) {
+      _target.copy(x);
+    } else {
+      _target.set(x, y, z);
+    }
+
+    const parent = this.parent;
+    this.updateWorldMatrix(true, false);
+
+    _position.setFromMatrixPosition(this.matrixWorld);
+
+    if (this.isCamera || this.isLight) {
+      _m1$1.lookAt(_position, _target, this.up);
+    } else {
+      _m1$1.lookAt(_target, _position, this.up);
+    }
+
+    this.quaternion.setFromRotationMatrix(_m1$1);
+
+    if (parent) {
+      _m1$1.extractRotation(parent.matrixWorld);
+
+      _q1.setFromRotationMatrix(_m1$1);
+
+      this.quaternion.premultiply(_q1.invert());
+    }
+  },
+  add: function (object) {
+    if (arguments.length > 1) {
+      for (let i = 0; i < arguments.length; i++) {
+        this.add(arguments[i]);
+      }
+
+      return this;
+    }
+
+    if (object === this) {
+      console.error('THREE.Object3D.add: object can\'t be added as a child of itself.', object);
+      return this;
+    }
+
+    if (object && object.isObject3D) {
+      if (object.parent !== null) {
+        object.parent.remove(object);
+      }
+
+      object.parent = this;
+      this.children.push(object);
+      object.dispatchEvent(_addedEvent);
+    } else {
+      console.error('THREE.Object3D.add: object not an instance of THREE.Object3D.', object);
+    }
+
+    return this;
+  },
+  remove: function (object) {
+    if (arguments.length > 1) {
+      for (let i = 0; i < arguments.length; i++) {
+        this.remove(arguments[i]);
+      }
+
+      return this;
+    }
+
+    const index = this.children.indexOf(object);
+
+    if (index !== -1) {
+      object.parent = null;
+      this.children.splice(index, 1);
+      object.dispatchEvent(_removedEvent);
+    }
+
+    return this;
+  },
+  clear: function () {
+    for (let i = 0; i < this.children.length; i++) {
+      const object = this.children[i];
+      object.parent = null;
+      object.dispatchEvent(_removedEvent);
+    }
+
+    this.children.length = 0;
+    return this;
+  },
+  attach: function (object) {
+    // adds object as a child of this, while maintaining the object's world transform
+    this.updateWorldMatrix(true, false);
+
+    _m1$1.copy(this.matrixWorld).invert();
+
+    if (object.parent !== null) {
+      object.parent.updateWorldMatrix(true, false);
+
+      _m1$1.multiply(object.parent.matrixWorld);
+    }
+
+    object.applyMatrix4(_m1$1);
+    this.add(object);
+    object.updateWorldMatrix(false, true);
+    return this;
+  },
+  getObjectById: function (id) {
+    return this.getObjectByProperty('id', id);
+  },
+  getObjectByName: function (name) {
+    return this.getObjectByProperty('name', name);
+  },
+  getObjectByProperty: function (name, value) {
+    if (this[name] === value) return this;
+
+    for (let i = 0, l = this.children.length; i < l; i++) {
+      const child = this.children[i];
+      const object = child.getObjectByProperty(name, value);
+
+      if (object !== undefined) {
+        return object;
+      }
+    }
+
+    return undefined;
+  },
+  getWorldPosition: function (target) {
+    if (target === undefined) {
+      console.warn('THREE.Object3D: .getWorldPosition() target is now required');
+      target = new Vector3();
+    }
+
+    this.updateWorldMatrix(true, false);
+    return target.setFromMatrixPosition(this.matrixWorld);
+  },
+  getWorldQuaternion: function (target) {
+    if (target === undefined) {
+      console.warn('THREE.Object3D: .getWorldQuaternion() target is now required');
+      target = new Quaternion();
+    }
+
+    this.updateWorldMatrix(true, false);
+    this.matrixWorld.decompose(_position, target, _scale);
+    return target;
+  },
+  getWorldScale: function (target) {
+    if (target === undefined) {
+      console.warn('THREE.Object3D: .getWorldScale() target is now required');
+      target = new Vector3();
+    }
+
+    this.updateWorldMatrix(true, false);
+    this.matrixWorld.decompose(_position, _quaternion$2, target);
+    return target;
+  },
+  getWorldDirection: function (target) {
+    if (target === undefined) {
+      console.warn('THREE.Object3D: .getWorldDirection() target is now required');
+      target = new Vector3();
+    }
+
+    this.updateWorldMatrix(true, false);
+    const e = this.matrixWorld.elements;
+    return target.set(e[8], e[9], e[10]).normalize();
+  },
+  raycast: function () {},
+  traverse: function (callback) {
+    callback(this);
+    const children = this.children;
+
+    for (let i = 0, l = children.length; i < l; i++) {
+      children[i].traverse(callback);
+    }
+  },
+  traverseVisible: function (callback) {
+    if (this.visible === false) return;
+    callback(this);
+    const children = this.children;
+
+    for (let i = 0, l = children.length; i < l; i++) {
+      children[i].traverseVisible(callback);
+    }
+  },
+  traverseAncestors: function (callback) {
+    const parent = this.parent;
+
+    if (parent !== null) {
+      callback(parent);
+      parent.traverseAncestors(callback);
+    }
+  },
+  updateMatrix: function () {
+    this.matrix.compose(this.position, this.quaternion, this.scale);
+    this.matrixWorldNeedsUpdate = true;
+  },
+  updateMatrixWorld: function (force) {
+    if (this.matrixAutoUpdate) this.updateMatrix();
+
+    if (this.matrixWorldNeedsUpdate || force) {
+      if (this.parent === null) {
+        this.matrixWorld.copy(this.matrix);
+      } else {
+        this.matrixWorld.multiplyMatrices(this.parent.matrixWorld, this.matrix);
+      }
+
+      this.matrixWorldNeedsUpdate = false;
+      force = true;
+    } // update children
+
+
+    const children = this.children;
+
+    for (let i = 0, l = children.length; i < l; i++) {
+      children[i].updateMatrixWorld(force);
+    }
+  },
+  updateWorldMatrix: function (updateParents, updateChildren) {
+    const parent = this.parent;
+
+    if (updateParents === true && parent !== null) {
+      parent.updateWorldMatrix(true, false);
+    }
+
+    if (this.matrixAutoUpdate) this.updateMatrix();
+
+    if (this.parent === null) {
+      this.matrixWorld.copy(this.matrix);
+    } else {
+      this.matrixWorld.multiplyMatrices(this.parent.matrixWorld, this.matrix);
+    } // update children
+
+
+    if (updateChildren === true) {
+      const children = this.children;
+
+      for (let i = 0, l = children.length; i < l; i++) {
+        children[i].updateWorldMatrix(false, true);
+      }
+    }
+  },
+  toJSON: function (meta) {
+    // meta is a string when called from JSON.stringify
+    const isRootObject = meta === undefined || typeof meta === 'string';
+    const output = {}; // meta is a hash used to collect geometries, materials.
+    // not providing it implies that this is the root object
+    // being serialized.
+
+    if (isRootObject) {
+      // initialize meta obj
+      meta = {
+        geometries: {},
+        materials: {},
+        textures: {},
+        images: {},
+        shapes: {},
+        skeletons: {},
+        animations: {}
+      };
+      output.metadata = {
+        version: 4.5,
+        type: 'Object',
+        generator: 'Object3D.toJSON'
+      };
+    } // standard Object3D serialization
+
+
+    const object = {};
+    object.uuid = this.uuid;
+    object.type = this.type;
+    if (this.name !== '') object.name = this.name;
+    if (this.castShadow === true) object.castShadow = true;
+    if (this.receiveShadow === true) object.receiveShadow = true;
+    if (this.visible === false) object.visible = false;
+    if (this.frustumCulled === false) object.frustumCulled = false;
+    if (this.renderOrder !== 0) object.renderOrder = this.renderOrder;
+    if (JSON.stringify(this.userData) !== '{}') object.userData = this.userData;
+    object.layers = this.layers.mask;
+    object.matrix = this.matrix.toArray();
+    if (this.matrixAutoUpdate === false) object.matrixAutoUpdate = false; // object specific properties
+
+    if (this.isInstancedMesh) {
+      object.type = 'InstancedMesh';
+      object.count = this.count;
+      object.instanceMatrix = this.instanceMatrix.toJSON();
+    } //
+
+
+    function serialize(library, element) {
+      if (library[element.uuid] === undefined) {
+        library[element.uuid] = element.toJSON(meta);
+      }
+
+      return element.uuid;
+    }
+
+    if (this.isMesh || this.isLine || this.isPoints) {
+      object.geometry = serialize(meta.geometries, this.geometry);
+      const parameters = this.geometry.parameters;
+
+      if (parameters !== undefined && parameters.shapes !== undefined) {
+        const shapes = parameters.shapes;
+
+        if (Array.isArray(shapes)) {
+          for (let i = 0, l = shapes.length; i < l; i++) {
+            const shape = shapes[i];
+            serialize(meta.shapes, shape);
+          }
+        } else {
+          serialize(meta.shapes, shapes);
+        }
+      }
+    }
+
+    if (this.isSkinnedMesh) {
+      object.bindMode = this.bindMode;
+      object.bindMatrix = this.bindMatrix.toArray();
+
+      if (this.skeleton !== undefined) {
+        serialize(meta.skeletons, this.skeleton);
+        object.skeleton = this.skeleton.uuid;
+      }
+    }
+
+    if (this.material !== undefined) {
+      if (Array.isArray(this.material)) {
+        const uuids = [];
+
+        for (let i = 0, l = this.material.length; i < l; i++) {
+          uuids.push(serialize(meta.materials, this.material[i]));
+        }
+
+        object.material = uuids;
+      } else {
+        object.material = serialize(meta.materials, this.material);
+      }
+    } //
+
+
+    if (this.children.length > 0) {
+      object.children = [];
+
+      for (let i = 0; i < this.children.length; i++) {
+        object.children.push(this.children[i].toJSON(meta).object);
+      }
+    } //
+
+
+    if (this.animations.length > 0) {
+      object.animations = [];
+
+      for (let i = 0; i < this.animations.length; i++) {
+        const animation = this.animations[i];
+        object.animations.push(serialize(meta.animations, animation));
+      }
+    }
+
+    if (isRootObject) {
+      const geometries = extractFromCache(meta.geometries);
+      const materials = extractFromCache(meta.materials);
+      const textures = extractFromCache(meta.textures);
+      const images = extractFromCache(meta.images);
+      const shapes = extractFromCache(meta.shapes);
+      const skeletons = extractFromCache(meta.skeletons);
+      const animations = extractFromCache(meta.animations);
+      if (geometries.length > 0) output.geometries = geometries;
+      if (materials.length > 0) output.materials = materials;
+      if (textures.length > 0) output.textures = textures;
+      if (images.length > 0) output.images = images;
+      if (shapes.length > 0) output.shapes = shapes;
+      if (skeletons.length > 0) output.skeletons = skeletons;
+      if (animations.length > 0) output.animations = animations;
+    }
+
+    output.object = object;
+    return output; // extract data from the cache hash
+    // remove metadata on each item
+    // and return as array
+
+    function extractFromCache(cache) {
+      const values = [];
+
+      for (const key in cache) {
+        const data = cache[key];
+        delete data.metadata;
+        values.push(data);
+      }
+
+      return values;
+    }
+  },
+  clone: function (recursive) {
+    return new this.constructor().copy(this, recursive);
+  },
+  copy: function (source, recursive = true) {
+    this.name = source.name;
+    this.up.copy(source.up);
+    this.position.copy(source.position);
+    this.rotation.order = source.rotation.order;
+    this.quaternion.copy(source.quaternion);
+    this.scale.copy(source.scale);
+    this.matrix.copy(source.matrix);
+    this.matrixWorld.copy(source.matrixWorld);
+    this.matrixAutoUpdate = source.matrixAutoUpdate;
+    this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;
+    this.layers.mask = source.layers.mask;
+    this.visible = source.visible;
+    this.castShadow = source.castShadow;
+    this.receiveShadow = source.receiveShadow;
+    this.frustumCulled = source.frustumCulled;
+    this.renderOrder = source.renderOrder;
+    this.userData = JSON.parse(JSON.stringify(source.userData));
+
+    if (recursive === true) {
+      for (let i = 0; i < source.children.length; i++) {
+        const child = source.children[i];
+        this.add(child.clone());
+      }
+    }
+
+    return this;
+  }
+});
+
+const _vector1 =
+/*@__PURE__*/
+new Vector3();
+
+const _vector2 =
+/*@__PURE__*/
+new Vector3();
+
+const _normalMatrix =
+/*@__PURE__*/
+new Matrix3();
+
+class Plane {
+  constructor(normal = new Vector3(1, 0, 0), constant = 0) {
+    // normal is assumed to be normalized
+    this.normal = normal;
+    this.constant = constant;
+  }
+
+  set(normal, constant) {
+    this.normal.copy(normal);
+    this.constant = constant;
+    return this;
+  }
+
+  setComponents(x, y, z, w) {
+    this.normal.set(x, y, z);
+    this.constant = w;
+    return this;
+  }
+
+  setFromNormalAndCoplanarPoint(normal, point) {
+    this.normal.copy(normal);
+    this.constant = -point.dot(this.normal);
+    return this;
+  }
+
+  setFromCoplanarPoints(a, b, c) {
+    const normal = _vector1.subVectors(c, b).cross(_vector2.subVectors(a, b)).normalize(); // Q: should an error be thrown if normal is zero (e.g. degenerate plane)?
+
+
+    this.setFromNormalAndCoplanarPoint(normal, a);
+    return this;
+  }
+
+  copy(plane) {
+    this.normal.copy(plane.normal);
+    this.constant = plane.constant;
+    return this;
+  }
+
+  normalize() {
+    // Note: will lead to a divide by zero if the plane is invalid.
+    const inverseNormalLength = 1.0 / this.normal.length();
+    this.normal.multiplyScalar(inverseNormalLength);
+    this.constant *= inverseNormalLength;
+    return this;
+  }
+
+  negate() {
+    this.constant *= -1;
+    this.normal.negate();
+    return this;
+  }
+
+  distanceToPoint(point) {
+    return this.normal.dot(point) + this.constant;
+  }
+
+  distanceToSphere(sphere) {
+    return this.distanceToPoint(sphere.center) - sphere.radius;
+  }
+
+  projectPoint(point, target) {
+    if (target === undefined) {
+      console.warn('THREE.Plane: .projectPoint() target is now required');
+      target = new Vector3();
+    }
+
+    return target.copy(this.normal).multiplyScalar(-this.distanceToPoint(point)).add(point);
+  }
+
+  intersectLine(line, target) {
+    if (target === undefined) {
+      console.warn('THREE.Plane: .intersectLine() target is now required');
+      target = new Vector3();
+    }
+
+    const direction = line.delta(_vector1);
+    const denominator = this.normal.dot(direction);
+
+    if (denominator === 0) {
+      // line is coplanar, return origin
+      if (this.distanceToPoint(line.start) === 0) {
+        return target.copy(line.start);
+      } // Unsure if this is the correct method to handle this case.
+
+
+      return undefined;
+    }
+
+    const t = -(line.start.dot(this.normal) + this.constant) / denominator;
+
+    if (t < 0 || t > 1) {
+      return undefined;
+    }
+
+    return target.copy(direction).multiplyScalar(t).add(line.start);
+  }
+
+  intersectsLine(line) {
+    // Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.
+    const startSign = this.distanceToPoint(line.start);
+    const endSign = this.distanceToPoint(line.end);
+    return startSign < 0 && endSign > 0 || endSign < 0 && startSign > 0;
+  }
+
+  intersectsBox(box) {
+    return box.intersectsPlane(this);
+  }
+
+  intersectsSphere(sphere) {
+    return sphere.intersectsPlane(this);
+  }
+
+  coplanarPoint(target) {
+    if (target === undefined) {
+      console.warn('THREE.Plane: .coplanarPoint() target is now required');
+      target = new Vector3();
+    }
+
+    return target.copy(this.normal).multiplyScalar(-this.constant);
+  }
+
+  applyMatrix4(matrix, optionalNormalMatrix) {
+    const normalMatrix = optionalNormalMatrix || _normalMatrix.getNormalMatrix(matrix);
+
+    const referencePoint = this.coplanarPoint(_vector1).applyMatrix4(matrix);
+    const normal = this.normal.applyMatrix3(normalMatrix).normalize();
+    this.constant = -referencePoint.dot(normal);
+    return this;
+  }
+
+  translate(offset) {
+    this.constant -= offset.dot(this.normal);
+    return this;
+  }
+
+  equals(plane) {
+    return plane.normal.equals(this.normal) && plane.constant === this.constant;
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+}
+
+exports.Plane = Plane;
+Plane.prototype.isPlane = true;
+
+const _v0$1 =
+/*@__PURE__*/
+new Vector3();
+
+const _v1$3 =
+/*@__PURE__*/
+new Vector3();
+
+const _v2$1 =
+/*@__PURE__*/
+new Vector3();
+
+const _v3 =
+/*@__PURE__*/
+new Vector3();
+
+const _vab =
+/*@__PURE__*/
+new Vector3();
+
+const _vac =
+/*@__PURE__*/
+new Vector3();
+
+const _vbc =
+/*@__PURE__*/
+new Vector3();
+
+const _vap =
+/*@__PURE__*/
+new Vector3();
+
+const _vbp =
+/*@__PURE__*/
+new Vector3();
+
+const _vcp =
+/*@__PURE__*/
+new Vector3();
+
+class Triangle {
+  constructor(a = new Vector3(), b = new Vector3(), c = new Vector3()) {
+    this.a = a;
+    this.b = b;
+    this.c = c;
+  }
+
+  static getNormal(a, b, c, target) {
+    if (target === undefined) {
+      console.warn('THREE.Triangle: .getNormal() target is now required');
+      target = new Vector3();
+    }
+
+    target.subVectors(c, b);
+
+    _v0$1.subVectors(a, b);
+
+    target.cross(_v0$1);
+    const targetLengthSq = target.lengthSq();
+
+    if (targetLengthSq > 0) {
+      return target.multiplyScalar(1 / Math.sqrt(targetLengthSq));
+    }
+
+    return target.set(0, 0, 0);
+  } // static/instance method to calculate barycentric coordinates
+  // based on: http://www.blackpawn.com/texts/pointinpoly/default.html
+
+
+  static getBarycoord(point, a, b, c, target) {
+    _v0$1.subVectors(c, a);
+
+    _v1$3.subVectors(b, a);
+
+    _v2$1.subVectors(point, a);
+
+    const dot00 = _v0$1.dot(_v0$1);
+
+    const dot01 = _v0$1.dot(_v1$3);
+
+    const dot02 = _v0$1.dot(_v2$1);
+
+    const dot11 = _v1$3.dot(_v1$3);
+
+    const dot12 = _v1$3.dot(_v2$1);
+
+    const denom = dot00 * dot11 - dot01 * dot01;
+
+    if (target === undefined) {
+      console.warn('THREE.Triangle: .getBarycoord() target is now required');
+      target = new Vector3();
+    } // collinear or singular triangle
+
+
+    if (denom === 0) {
+      // arbitrary location outside of triangle?
+      // not sure if this is the best idea, maybe should be returning undefined
+      return target.set(-2, -1, -1);
+    }
+
+    const invDenom = 1 / denom;
+    const u = (dot11 * dot02 - dot01 * dot12) * invDenom;
+    const v = (dot00 * dot12 - dot01 * dot02) * invDenom; // barycentric coordinates must always sum to 1
+
+    return target.set(1 - u - v, v, u);
+  }
+
+  static containsPoint(point, a, b, c) {
+    this.getBarycoord(point, a, b, c, _v3);
+    return _v3.x >= 0 && _v3.y >= 0 && _v3.x + _v3.y <= 1;
+  }
+
+  static getUV(point, p1, p2, p3, uv1, uv2, uv3, target) {
+    this.getBarycoord(point, p1, p2, p3, _v3);
+    target.set(0, 0);
+    target.addScaledVector(uv1, _v3.x);
+    target.addScaledVector(uv2, _v3.y);
+    target.addScaledVector(uv3, _v3.z);
+    return target;
+  }
+
+  static isFrontFacing(a, b, c, direction) {
+    _v0$1.subVectors(c, b);
+
+    _v1$3.subVectors(a, b); // strictly front facing
+
+
+    return _v0$1.cross(_v1$3).dot(direction) < 0 ? true : false;
+  }
+
+  set(a, b, c) {
+    this.a.copy(a);
+    this.b.copy(b);
+    this.c.copy(c);
+    return this;
+  }
+
+  setFromPointsAndIndices(points, i0, i1, i2) {
+    this.a.copy(points[i0]);
+    this.b.copy(points[i1]);
+    this.c.copy(points[i2]);
+    return this;
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+  copy(triangle) {
+    this.a.copy(triangle.a);
+    this.b.copy(triangle.b);
+    this.c.copy(triangle.c);
+    return this;
+  }
+
+  getArea() {
+    _v0$1.subVectors(this.c, this.b);
+
+    _v1$3.subVectors(this.a, this.b);
+
+    return _v0$1.cross(_v1$3).length() * 0.5;
+  }
+
+  getMidpoint(target) {
+    if (target === undefined) {
+      console.warn('THREE.Triangle: .getMidpoint() target is now required');
+      target = new Vector3();
+    }
+
+    return target.addVectors(this.a, this.b).add(this.c).multiplyScalar(1 / 3);
+  }
+
+  getNormal(target) {
+    return Triangle.getNormal(this.a, this.b, this.c, target);
+  }
+
+  getPlane(target) {
+    if (target === undefined) {
+      console.warn('THREE.Triangle: .getPlane() target is now required');
+      target = new Plane();
+    }
+
+    return target.setFromCoplanarPoints(this.a, this.b, this.c);
+  }
+
+  getBarycoord(point, target) {
+    return Triangle.getBarycoord(point, this.a, this.b, this.c, target);
+  }
+
+  getUV(point, uv1, uv2, uv3, target) {
+    return Triangle.getUV(point, this.a, this.b, this.c, uv1, uv2, uv3, target);
+  }
+
+  containsPoint(point) {
+    return Triangle.containsPoint(point, this.a, this.b, this.c);
+  }
+
+  isFrontFacing(direction) {
+    return Triangle.isFrontFacing(this.a, this.b, this.c, direction);
+  }
+
+  intersectsBox(box) {
+    return box.intersectsTriangle(this);
+  }
+
+  closestPointToPoint(p, target) {
+    if (target === undefined) {
+      console.warn('THREE.Triangle: .closestPointToPoint() target is now required');
+      target = new Vector3();
+    }
+
+    const a = this.a,
+          b = this.b,
+          c = this.c;
+    let v, w; // algorithm thanks to Real-Time Collision Detection by Christer Ericson,
+    // published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,
+    // under the accompanying license; see chapter 5.1.5 for detailed explanation.
+    // basically, we're distinguishing which of the voronoi regions of the triangle
+    // the point lies in with the minimum amount of redundant computation.
+
+    _vab.subVectors(b, a);
+
+    _vac.subVectors(c, a);
+
+    _vap.subVectors(p, a);
+
+    const d1 = _vab.dot(_vap);
+
+    const d2 = _vac.dot(_vap);
+
+    if (d1 <= 0 && d2 <= 0) {
+      // vertex region of A; barycentric coords (1, 0, 0)
+      return target.copy(a);
+    }
+
+    _vbp.subVectors(p, b);
+
+    const d3 = _vab.dot(_vbp);
+
+    const d4 = _vac.dot(_vbp);
+
+    if (d3 >= 0 && d4 <= d3) {
+      // vertex region of B; barycentric coords (0, 1, 0)
+      return target.copy(b);
+    }
+
+    const vc = d1 * d4 - d3 * d2;
+
+    if (vc <= 0 && d1 >= 0 && d3 <= 0) {
+      v = d1 / (d1 - d3); // edge region of AB; barycentric coords (1-v, v, 0)
+
+      return target.copy(a).addScaledVector(_vab, v);
+    }
+
+    _vcp.subVectors(p, c);
+
+    const d5 = _vab.dot(_vcp);
+
+    const d6 = _vac.dot(_vcp);
+
+    if (d6 >= 0 && d5 <= d6) {
+      // vertex region of C; barycentric coords (0, 0, 1)
+      return target.copy(c);
+    }
+
+    const vb = d5 * d2 - d1 * d6;
+
+    if (vb <= 0 && d2 >= 0 && d6 <= 0) {
+      w = d2 / (d2 - d6); // edge region of AC; barycentric coords (1-w, 0, w)
+
+      return target.copy(a).addScaledVector(_vac, w);
+    }
+
+    const va = d3 * d6 - d5 * d4;
+
+    if (va <= 0 && d4 - d3 >= 0 && d5 - d6 >= 0) {
+      _vbc.subVectors(c, b);
+
+      w = (d4 - d3) / (d4 - d3 + (d5 - d6)); // edge region of BC; barycentric coords (0, 1-w, w)
+
+      return target.copy(b).addScaledVector(_vbc, w); // edge region of BC
+    } // face region
+
+
+    const denom = 1 / (va + vb + vc); // u = va * denom
+
+    v = vb * denom;
+    w = vc * denom;
+    return target.copy(a).addScaledVector(_vab, v).addScaledVector(_vac, w);
+  }
+
+  equals(triangle) {
+    return triangle.a.equals(this.a) && triangle.b.equals(this.b) && triangle.c.equals(this.c);
+  }
+
+}
+
+exports.Triangle = Triangle;
+let materialId = 0;
+
+function Material() {
+  Object.defineProperty(this, 'id', {
+    value: materialId++
+  });
+  this.uuid = MathUtils.generateUUID();
+  this.name = '';
+  this.type = 'Material';
+  this.fog = true;
+  this.blending = NormalBlending;
+  this.side = FrontSide;
+  this.vertexColors = false;
+  this.opacity = 1;
+  this.transparent = false;
+  this.blendSrc = SrcAlphaFactor;
+  this.blendDst = OneMinusSrcAlphaFactor;
+  this.blendEquation = AddEquation;
+  this.blendSrcAlpha = null;
+  this.blendDstAlpha = null;
+  this.blendEquationAlpha = null;
+  this.depthFunc = LessEqualDepth;
+  this.depthTest = true;
+  this.depthWrite = true;
+  this.stencilWriteMask = 0xff;
+  this.stencilFunc = AlwaysStencilFunc;
+  this.stencilRef = 0;
+  this.stencilFuncMask = 0xff;
+  this.stencilFail = KeepStencilOp;
+  this.stencilZFail = KeepStencilOp;
+  this.stencilZPass = KeepStencilOp;
+  this.stencilWrite = false;
+  this.clippingPlanes = null;
+  this.clipIntersection = false;
+  this.clipShadows = false;
+  this.shadowSide = null;
+  this.colorWrite = true;
+  this.precision = null; // override the renderer's default precision for this material
+
+  this.polygonOffset = false;
+  this.polygonOffsetFactor = 0;
+  this.polygonOffsetUnits = 0;
+  this.dithering = false;
+  this.alphaTest = 0;
+  this.premultipliedAlpha = false;
+  this.visible = true;
+  this.toneMapped = true;
+  this.userData = {};
+  this.version = 0;
+}
+
+Material.prototype = Object.assign(Object.create(EventDispatcher.prototype), {
+  constructor: Material,
+  isMaterial: true,
+  onBeforeCompile: function ()
+  /* shaderobject, renderer */
+  {},
+  customProgramCacheKey: function () {
+    return this.onBeforeCompile.toString();
+  },
+  setValues: function (values) {
+    if (values === undefined) return;
+
+    for (const key in values) {
+      const newValue = values[key];
+
+      if (newValue === undefined) {
+        console.warn('THREE.Material: \'' + key + '\' parameter is undefined.');
+        continue;
+      } // for backward compatability if shading is set in the constructor
+
+
+      if (key === 'shading') {
+        console.warn('THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.');
+        this.flatShading = newValue === FlatShading ? true : false;
+        continue;
+      }
+
+      const currentValue = this[key];
+
+      if (currentValue === undefined) {
+        console.warn('THREE.' + this.type + ': \'' + key + '\' is not a property of this material.');
+        continue;
+      }
+
+      if (currentValue && currentValue.isColor) {
+        currentValue.set(newValue);
+      } else if (currentValue && currentValue.isVector3 && newValue && newValue.isVector3) {
+        currentValue.copy(newValue);
+      } else {
+        this[key] = newValue;
+      }
+    }
+  },
+  toJSON: function (meta) {
+    const isRoot = meta === undefined || typeof meta === 'string';
+
+    if (isRoot) {
+      meta = {
+        textures: {},
+        images: {}
+      };
+    }
+
+    const data = {
+      metadata: {
+        version: 4.5,
+        type: 'Material',
+        generator: 'Material.toJSON'
+      }
+    }; // standard Material serialization
+
+    data.uuid = this.uuid;
+    data.type = this.type;
+    if (this.name !== '') data.name = this.name;
+    if (this.color && this.color.isColor) data.color = this.color.getHex();
+    if (this.roughness !== undefined) data.roughness = this.roughness;
+    if (this.metalness !== undefined) data.metalness = this.metalness;
+    if (this.sheen && this.sheen.isColor) data.sheen = this.sheen.getHex();
+    if (this.emissive && this.emissive.isColor) data.emissive = this.emissive.getHex();
+    if (this.emissiveIntensity && this.emissiveIntensity !== 1) data.emissiveIntensity = this.emissiveIntensity;
+    if (this.specular && this.specular.isColor) data.specular = this.specular.getHex();
+    if (this.shininess !== undefined) data.shininess = this.shininess;
+    if (this.clearcoat !== undefined) data.clearcoat = this.clearcoat;
+    if (this.clearcoatRoughness !== undefined) data.clearcoatRoughness = this.clearcoatRoughness;
+
+    if (this.clearcoatMap && this.clearcoatMap.isTexture) {
+      data.clearcoatMap = this.clearcoatMap.toJSON(meta).uuid;
+    }
+
+    if (this.clearcoatRoughnessMap && this.clearcoatRoughnessMap.isTexture) {
+      data.clearcoatRoughnessMap = this.clearcoatRoughnessMap.toJSON(meta).uuid;
+    }
+
+    if (this.clearcoatNormalMap && this.clearcoatNormalMap.isTexture) {
+      data.clearcoatNormalMap = this.clearcoatNormalMap.toJSON(meta).uuid;
+      data.clearcoatNormalScale = this.clearcoatNormalScale.toArray();
+    }
+
+    if (this.map && this.map.isTexture) data.map = this.map.toJSON(meta).uuid;
+    if (this.matcap && this.matcap.isTexture) data.matcap = this.matcap.toJSON(meta).uuid;
+    if (this.alphaMap && this.alphaMap.isTexture) data.alphaMap = this.alphaMap.toJSON(meta).uuid;
+
+    if (this.lightMap && this.lightMap.isTexture) {
+      data.lightMap = this.lightMap.toJSON(meta).uuid;
+      data.lightMapIntensity = this.lightMapIntensity;
+    }
+
+    if (this.aoMap && this.aoMap.isTexture) {
+      data.aoMap = this.aoMap.toJSON(meta).uuid;
+      data.aoMapIntensity = this.aoMapIntensity;
+    }
+
+    if (this.bumpMap && this.bumpMap.isTexture) {
+      data.bumpMap = this.bumpMap.toJSON(meta).uuid;
+      data.bumpScale = this.bumpScale;
+    }
+
+    if (this.normalMap && this.normalMap.isTexture) {
+      data.normalMap = this.normalMap.toJSON(meta).uuid;
+      data.normalMapType = this.normalMapType;
+      data.normalScale = this.normalScale.toArray();
+    }
+
+    if (this.displacementMap && this.displacementMap.isTexture) {
+      data.displacementMap = this.displacementMap.toJSON(meta).uuid;
+      data.displacementScale = this.displacementScale;
+      data.displacementBias = this.displacementBias;
+    }
+
+    if (this.roughnessMap && this.roughnessMap.isTexture) data.roughnessMap = this.roughnessMap.toJSON(meta).uuid;
+    if (this.metalnessMap && this.metalnessMap.isTexture) data.metalnessMap = this.metalnessMap.toJSON(meta).uuid;
+    if (this.emissiveMap && this.emissiveMap.isTexture) data.emissiveMap = this.emissiveMap.toJSON(meta).uuid;
+    if (this.specularMap && this.specularMap.isTexture) data.specularMap = this.specularMap.toJSON(meta).uuid;
+
+    if (this.envMap && this.envMap.isTexture) {
+      data.envMap = this.envMap.toJSON(meta).uuid;
+      data.reflectivity = this.reflectivity; // Scale behind envMap
+
+      data.refractionRatio = this.refractionRatio;
+      if (this.combine !== undefined) data.combine = this.combine;
+      if (this.envMapIntensity !== undefined) data.envMapIntensity = this.envMapIntensity;
+    }
+
+    if (this.gradientMap && this.gradientMap.isTexture) {
+      data.gradientMap = this.gradientMap.toJSON(meta).uuid;
+    }
+
+    if (this.size !== undefined) data.size = this.size;
+    if (this.sizeAttenuation !== undefined) data.sizeAttenuation = this.sizeAttenuation;
+    if (this.blending !== NormalBlending) data.blending = this.blending;
+    if (this.side !== FrontSide) data.side = this.side;
+    if (this.vertexColors) data.vertexColors = true;
+    if (this.opacity < 1) data.opacity = this.opacity;
+    if (this.transparent === true) data.transparent = this.transparent;
+    data.depthFunc = this.depthFunc;
+    data.depthTest = this.depthTest;
+    data.depthWrite = this.depthWrite;
+    data.stencilWrite = this.stencilWrite;
+    data.stencilWriteMask = this.stencilWriteMask;
+    data.stencilFunc = this.stencilFunc;
+    data.stencilRef = this.stencilRef;
+    data.stencilFuncMask = this.stencilFuncMask;
+    data.stencilFail = this.stencilFail;
+    data.stencilZFail = this.stencilZFail;
+    data.stencilZPass = this.stencilZPass; // rotation (SpriteMaterial)
+
+    if (this.rotation && this.rotation !== 0) data.rotation = this.rotation;
+    if (this.polygonOffset === true) data.polygonOffset = true;
+    if (this.polygonOffsetFactor !== 0) data.polygonOffsetFactor = this.polygonOffsetFactor;
+    if (this.polygonOffsetUnits !== 0) data.polygonOffsetUnits = this.polygonOffsetUnits;
+    if (this.linewidth && this.linewidth !== 1) data.linewidth = this.linewidth;
+    if (this.dashSize !== undefined) data.dashSize = this.dashSize;
+    if (this.gapSize !== undefined) data.gapSize = this.gapSize;
+    if (this.scale !== undefined) data.scale = this.scale;
+    if (this.dithering === true) data.dithering = true;
+    if (this.alphaTest > 0) data.alphaTest = this.alphaTest;
+    if (this.premultipliedAlpha === true) data.premultipliedAlpha = this.premultipliedAlpha;
+    if (this.wireframe === true) data.wireframe = this.wireframe;
+    if (this.wireframeLinewidth > 1) data.wireframeLinewidth = this.wireframeLinewidth;
+    if (this.wireframeLinecap !== 'round') data.wireframeLinecap = this.wireframeLinecap;
+    if (this.wireframeLinejoin !== 'round') data.wireframeLinejoin = this.wireframeLinejoin;
+    if (this.morphTargets === true) data.morphTargets = true;
+    if (this.morphNormals === true) data.morphNormals = true;
+    if (this.skinning === true) data.skinning = true;
+    if (this.flatShading === true) data.flatShading = this.flatShading;
+    if (this.visible === false) data.visible = false;
+    if (this.toneMapped === false) data.toneMapped = false;
+    if (JSON.stringify(this.userData) !== '{}') data.userData = this.userData; // TODO: Copied from Object3D.toJSON
+
+    function extractFromCache(cache) {
+      const values = [];
+
+      for (const key in cache) {
+        const data = cache[key];
+        delete data.metadata;
+        values.push(data);
+      }
+
+      return values;
+    }
+
+    if (isRoot) {
+      const textures = extractFromCache(meta.textures);
+      const images = extractFromCache(meta.images);
+      if (textures.length > 0) data.textures = textures;
+      if (images.length > 0) data.images = images;
+    }
+
+    return data;
+  },
+  clone: function () {
+    return new this.constructor().copy(this);
+  },
+  copy: function (source) {
+    this.name = source.name;
+    this.fog = source.fog;
+    this.blending = source.blending;
+    this.side = source.side;
+    this.vertexColors = source.vertexColors;
+    this.opacity = source.opacity;
+    this.transparent = source.transparent;
+    this.blendSrc = source.blendSrc;
+    this.blendDst = source.blendDst;
+    this.blendEquation = source.blendEquation;
+    this.blendSrcAlpha = source.blendSrcAlpha;
+    this.blendDstAlpha = source.blendDstAlpha;
+    this.blendEquationAlpha = source.blendEquationAlpha;
+    this.depthFunc = source.depthFunc;
+    this.depthTest = source.depthTest;
+    this.depthWrite = source.depthWrite;
+    this.stencilWriteMask = source.stencilWriteMask;
+    this.stencilFunc = source.stencilFunc;
+    this.stencilRef = source.stencilRef;
+    this.stencilFuncMask = source.stencilFuncMask;
+    this.stencilFail = source.stencilFail;
+    this.stencilZFail = source.stencilZFail;
+    this.stencilZPass = source.stencilZPass;
+    this.stencilWrite = source.stencilWrite;
+    const srcPlanes = source.clippingPlanes;
+    let dstPlanes = null;
+
+    if (srcPlanes !== null) {
+      const n = srcPlanes.length;
+      dstPlanes = new Array(n);
+
+      for (let i = 0; i !== n; ++i) {
+        dstPlanes[i] = srcPlanes[i].clone();
+      }
+    }
+
+    this.clippingPlanes = dstPlanes;
+    this.clipIntersection = source.clipIntersection;
+    this.clipShadows = source.clipShadows;
+    this.shadowSide = source.shadowSide;
+    this.colorWrite = source.colorWrite;
+    this.precision = source.precision;
+    this.polygonOffset = source.polygonOffset;
+    this.polygonOffsetFactor = source.polygonOffsetFactor;
+    this.polygonOffsetUnits = source.polygonOffsetUnits;
+    this.dithering = source.dithering;
+    this.alphaTest = source.alphaTest;
+    this.premultipliedAlpha = source.premultipliedAlpha;
+    this.visible = source.visible;
+    this.toneMapped = source.toneMapped;
+    this.userData = JSON.parse(JSON.stringify(source.userData));
+    return this;
+  },
+  dispose: function () {
+    this.dispatchEvent({
+      type: 'dispose'
+    });
+  }
+});
+Object.defineProperty(Material.prototype, 'needsUpdate', {
+  set: function (value) {
+    if (value === true) this.version++;
+  }
+});
+const _colorKeywords = {
+  'aliceblue': 0xF0F8FF,
+  'antiquewhite': 0xFAEBD7,
+  'aqua': 0x00FFFF,
+  'aquamarine': 0x7FFFD4,
+  'azure': 0xF0FFFF,
+  'beige': 0xF5F5DC,
+  'bisque': 0xFFE4C4,
+  'black': 0x000000,
+  'blanchedalmond': 0xFFEBCD,
+  'blue': 0x0000FF,
+  'blueviolet': 0x8A2BE2,
+  'brown': 0xA52A2A,
+  'burlywood': 0xDEB887,
+  'cadetblue': 0x5F9EA0,
+  'chartreuse': 0x7FFF00,
+  'chocolate': 0xD2691E,
+  'coral': 0xFF7F50,
+  'cornflowerblue': 0x6495ED,
+  'cornsilk': 0xFFF8DC,
+  'crimson': 0xDC143C,
+  'cyan': 0x00FFFF,
+  'darkblue': 0x00008B,
+  'darkcyan': 0x008B8B,
+  'darkgoldenrod': 0xB8860B,
+  'darkgray': 0xA9A9A9,
+  'darkgreen': 0x006400,
+  'darkgrey': 0xA9A9A9,
+  'darkkhaki': 0xBDB76B,
+  'darkmagenta': 0x8B008B,
+  'darkolivegreen': 0x556B2F,
+  'darkorange': 0xFF8C00,
+  'darkorchid': 0x9932CC,
+  'darkred': 0x8B0000,
+  'darksalmon': 0xE9967A,
+  'darkseagreen': 0x8FBC8F,
+  'darkslateblue': 0x483D8B,
+  'darkslategray': 0x2F4F4F,
+  'darkslategrey': 0x2F4F4F,
+  'darkturquoise': 0x00CED1,
+  'darkviolet': 0x9400D3,
+  'deeppink': 0xFF1493,
+  'deepskyblue': 0x00BFFF,
+  'dimgray': 0x696969,
+  'dimgrey': 0x696969,
+  'dodgerblue': 0x1E90FF,
+  'firebrick': 0xB22222,
+  'floralwhite': 0xFFFAF0,
+  'forestgreen': 0x228B22,
+  'fuchsia': 0xFF00FF,
+  'gainsboro': 0xDCDCDC,
+  'ghostwhite': 0xF8F8FF,
+  'gold': 0xFFD700,
+  'goldenrod': 0xDAA520,
+  'gray': 0x808080,
+  'green': 0x008000,
+  'greenyellow': 0xADFF2F,
+  'grey': 0x808080,
+  'honeydew': 0xF0FFF0,
+  'hotpink': 0xFF69B4,
+  'indianred': 0xCD5C5C,
+  'indigo': 0x4B0082,
+  'ivory': 0xFFFFF0,
+  'khaki': 0xF0E68C,
+  'lavender': 0xE6E6FA,
+  'lavenderblush': 0xFFF0F5,
+  'lawngreen': 0x7CFC00,
+  'lemonchiffon': 0xFFFACD,
+  'lightblue': 0xADD8E6,
+  'lightcoral': 0xF08080,
+  'lightcyan': 0xE0FFFF,
+  'lightgoldenrodyellow': 0xFAFAD2,
+  'lightgray': 0xD3D3D3,
+  'lightgreen': 0x90EE90,
+  'lightgrey': 0xD3D3D3,
+  'lightpink': 0xFFB6C1,
+  'lightsalmon': 0xFFA07A,
+  'lightseagreen': 0x20B2AA,
+  'lightskyblue': 0x87CEFA,
+  'lightslategray': 0x778899,
+  'lightslategrey': 0x778899,
+  'lightsteelblue': 0xB0C4DE,
+  'lightyellow': 0xFFFFE0,
+  'lime': 0x00FF00,
+  'limegreen': 0x32CD32,
+  'linen': 0xFAF0E6,
+  'magenta': 0xFF00FF,
+  'maroon': 0x800000,
+  'mediumaquamarine': 0x66CDAA,
+  'mediumblue': 0x0000CD,
+  'mediumorchid': 0xBA55D3,
+  'mediumpurple': 0x9370DB,
+  'mediumseagreen': 0x3CB371,
+  'mediumslateblue': 0x7B68EE,
+  'mediumspringgreen': 0x00FA9A,
+  'mediumturquoise': 0x48D1CC,
+  'mediumvioletred': 0xC71585,
+  'midnightblue': 0x191970,
+  'mintcream': 0xF5FFFA,
+  'mistyrose': 0xFFE4E1,
+  'moccasin': 0xFFE4B5,
+  'navajowhite': 0xFFDEAD,
+  'navy': 0x000080,
+  'oldlace': 0xFDF5E6,
+  'olive': 0x808000,
+  'olivedrab': 0x6B8E23,
+  'orange': 0xFFA500,
+  'orangered': 0xFF4500,
+  'orchid': 0xDA70D6,
+  'palegoldenrod': 0xEEE8AA,
+  'palegreen': 0x98FB98,
+  'paleturquoise': 0xAFEEEE,
+  'palevioletred': 0xDB7093,
+  'papayawhip': 0xFFEFD5,
+  'peachpuff': 0xFFDAB9,
+  'peru': 0xCD853F,
+  'pink': 0xFFC0CB,
+  'plum': 0xDDA0DD,
+  'powderblue': 0xB0E0E6,
+  'purple': 0x800080,
+  'rebeccapurple': 0x663399,
+  'red': 0xFF0000,
+  'rosybrown': 0xBC8F8F,
+  'royalblue': 0x4169E1,
+  'saddlebrown': 0x8B4513,
+  'salmon': 0xFA8072,
+  'sandybrown': 0xF4A460,
+  'seagreen': 0x2E8B57,
+  'seashell': 0xFFF5EE,
+  'sienna': 0xA0522D,
+  'silver': 0xC0C0C0,
+  'skyblue': 0x87CEEB,
+  'slateblue': 0x6A5ACD,
+  'slategray': 0x708090,
+  'slategrey': 0x708090,
+  'snow': 0xFFFAFA,
+  'springgreen': 0x00FF7F,
+  'steelblue': 0x4682B4,
+  'tan': 0xD2B48C,
+  'teal': 0x008080,
+  'thistle': 0xD8BFD8,
+  'tomato': 0xFF6347,
+  'turquoise': 0x40E0D0,
+  'violet': 0xEE82EE,
+  'wheat': 0xF5DEB3,
+  'white': 0xFFFFFF,
+  'whitesmoke': 0xF5F5F5,
+  'yellow': 0xFFFF00,
+  'yellowgreen': 0x9ACD32
+};
+const _hslA = {
+  h: 0,
+  s: 0,
+  l: 0
+};
+const _hslB = {
+  h: 0,
+  s: 0,
+  l: 0
+};
+
+function hue2rgb(p, q, t) {
+  if (t < 0) t += 1;
+  if (t > 1) t -= 1;
+  if (t < 1 / 6) return p + (q - p) * 6 * t;
+  if (t < 1 / 2) return q;
+  if (t < 2 / 3) return p + (q - p) * 6 * (2 / 3 - t);
+  return p;
+}
+
+function SRGBToLinear(c) {
+  return c < 0.04045 ? c * 0.0773993808 : Math.pow(c * 0.9478672986 + 0.0521327014, 2.4);
+}
+
+function LinearToSRGB(c) {
+  return c < 0.0031308 ? c * 12.92 : 1.055 * Math.pow(c, 0.41666) - 0.055;
+}
+
+class Color {
+  constructor(r, g, b) {
+    if (g === undefined && b === undefined) {
+      // r is THREE.Color, hex or string
+      return this.set(r);
+    }
+
+    return this.setRGB(r, g, b);
+  }
+
+  set(value) {
+    if (value && value.isColor) {
+      this.copy(value);
+    } else if (typeof value === 'number') {
+      this.setHex(value);
+    } else if (typeof value === 'string') {
+      this.setStyle(value);
+    }
+
+    return this;
+  }
+
+  setScalar(scalar) {
+    this.r = scalar;
+    this.g = scalar;
+    this.b = scalar;
+    return this;
+  }
+
+  setHex(hex) {
+    hex = Math.floor(hex);
+    this.r = (hex >> 16 & 255) / 255;
+    this.g = (hex >> 8 & 255) / 255;
+    this.b = (hex & 255) / 255;
+    return this;
+  }
+
+  setRGB(r, g, b) {
+    this.r = r;
+    this.g = g;
+    this.b = b;
+    return this;
+  }
+
+  setHSL(h, s, l) {
+    // h,s,l ranges are in 0.0 - 1.0
+    h = MathUtils.euclideanModulo(h, 1);
+    s = MathUtils.clamp(s, 0, 1);
+    l = MathUtils.clamp(l, 0, 1);
+
+    if (s === 0) {
+      this.r = this.g = this.b = l;
+    } else {
+      const p = l <= 0.5 ? l * (1 + s) : l + s - l * s;
+      const q = 2 * l - p;
+      this.r = hue2rgb(q, p, h + 1 / 3);
+      this.g = hue2rgb(q, p, h);
+      this.b = hue2rgb(q, p, h - 1 / 3);
+    }
+
+    return this;
+  }
+
+  setStyle(style) {
+    function handleAlpha(string) {
+      if (string === undefined) return;
+
+      if (parseFloat(string) < 1) {
+        console.warn('THREE.Color: Alpha component of ' + style + ' will be ignored.');
+      }
+    }
+
+    let m;
+
+    if (m = /^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(style)) {
+      // rgb / hsl
+      let color;
+      const name = m[1];
+      const components = m[2];
+
+      switch (name) {
+        case 'rgb':
+        case 'rgba':
+          if (color = /^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
+            // rgb(255,0,0) rgba(255,0,0,0.5)
+            this.r = Math.min(255, parseInt(color[1], 10)) / 255;
+            this.g = Math.min(255, parseInt(color[2], 10)) / 255;
+            this.b = Math.min(255, parseInt(color[3], 10)) / 255;
+            handleAlpha(color[4]);
+            return this;
+          }
+
+          if (color = /^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
+            // rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
+            this.r = Math.min(100, parseInt(color[1], 10)) / 100;
+            this.g = Math.min(100, parseInt(color[2], 10)) / 100;
+            this.b = Math.min(100, parseInt(color[3], 10)) / 100;
+            handleAlpha(color[4]);
+            return this;
+          }
+
+          break;
+
+        case 'hsl':
+        case 'hsla':
+          if (color = /^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
+            // hsl(120,50%,50%) hsla(120,50%,50%,0.5)
+            const h = parseFloat(color[1]) / 360;
+            const s = parseInt(color[2], 10) / 100;
+            const l = parseInt(color[3], 10) / 100;
+            handleAlpha(color[4]);
+            return this.setHSL(h, s, l);
+          }
+
+          break;
+      }
+    } else if (m = /^\#([A-Fa-f\d]+)$/.exec(style)) {
+      // hex color
+      const hex = m[1];
+      const size = hex.length;
+
+      if (size === 3) {
+        // #ff0
+        this.r = parseInt(hex.charAt(0) + hex.charAt(0), 16) / 255;
+        this.g = parseInt(hex.charAt(1) + hex.charAt(1), 16) / 255;
+        this.b = parseInt(hex.charAt(2) + hex.charAt(2), 16) / 255;
+        return this;
+      } else if (size === 6) {
+        // #ff0000
+        this.r = parseInt(hex.charAt(0) + hex.charAt(1), 16) / 255;
+        this.g = parseInt(hex.charAt(2) + hex.charAt(3), 16) / 255;
+        this.b = parseInt(hex.charAt(4) + hex.charAt(5), 16) / 255;
+        return this;
+      }
+    }
+
+    if (style && style.length > 0) {
+      return this.setColorName(style);
+    }
+
+    return this;
+  }
+
+  setColorName(style) {
+    // color keywords
+    const hex = _colorKeywords[style];
+
+    if (hex !== undefined) {
+      // red
+      this.setHex(hex);
+    } else {
+      // unknown color
+      console.warn('THREE.Color: Unknown color ' + style);
+    }
+
+    return this;
+  }
+
+  clone() {
+    return new this.constructor(this.r, this.g, this.b);
+  }
+
+  copy(color) {
+    this.r = color.r;
+    this.g = color.g;
+    this.b = color.b;
+    return this;
+  }
+
+  copyGammaToLinear(color, gammaFactor = 2.0) {
+    this.r = Math.pow(color.r, gammaFactor);
+    this.g = Math.pow(color.g, gammaFactor);
+    this.b = Math.pow(color.b, gammaFactor);
+    return this;
+  }
+
+  copyLinearToGamma(color, gammaFactor = 2.0) {
+    const safeInverse = gammaFactor > 0 ? 1.0 / gammaFactor : 1.0;
+    this.r = Math.pow(color.r, safeInverse);
+    this.g = Math.pow(color.g, safeInverse);
+    this.b = Math.pow(color.b, safeInverse);
+    return this;
+  }
+
+  convertGammaToLinear(gammaFactor) {
+    this.copyGammaToLinear(this, gammaFactor);
+    return this;
+  }
+
+  convertLinearToGamma(gammaFactor) {
+    this.copyLinearToGamma(this, gammaFactor);
+    return this;
+  }
+
+  copySRGBToLinear(color) {
+    this.r = SRGBToLinear(color.r);
+    this.g = SRGBToLinear(color.g);
+    this.b = SRGBToLinear(color.b);
+    return this;
+  }
+
+  copyLinearToSRGB(color) {
+    this.r = LinearToSRGB(color.r);
+    this.g = LinearToSRGB(color.g);
+    this.b = LinearToSRGB(color.b);
+    return this;
+  }
+
+  convertSRGBToLinear() {
+    this.copySRGBToLinear(this);
+    return this;
+  }
+
+  convertLinearToSRGB() {
+    this.copyLinearToSRGB(this);
+    return this;
+  }
+
+  getHex() {
+    return this.r * 255 << 16 ^ this.g * 255 << 8 ^ this.b * 255 << 0;
+  }
+
+  getHexString() {
+    return ('000000' + this.getHex().toString(16)).slice(-6);
+  }
+
+  getHSL(target) {
+    // h,s,l ranges are in 0.0 - 1.0
+    if (target === undefined) {
+      console.warn('THREE.Color: .getHSL() target is now required');
+      target = {
+        h: 0,
+        s: 0,
+        l: 0
+      };
+    }
+
+    const r = this.r,
+          g = this.g,
+          b = this.b;
+    const max = Math.max(r, g, b);
+    const min = Math.min(r, g, b);
+    let hue, saturation;
+    const lightness = (min + max) / 2.0;
+
+    if (min === max) {
+      hue = 0;
+      saturation = 0;
+    } else {
+      const delta = max - min;
+      saturation = lightness <= 0.5 ? delta / (max + min) : delta / (2 - max - min);
+
+      switch (max) {
+        case r:
+          hue = (g - b) / delta + (g < b ? 6 : 0);
+          break;
+
+        case g:
+          hue = (b - r) / delta + 2;
+          break;
+
+        case b:
+          hue = (r - g) / delta + 4;
+          break;
+      }
+
+      hue /= 6;
+    }
+
+    target.h = hue;
+    target.s = saturation;
+    target.l = lightness;
+    return target;
+  }
+
+  getStyle() {
+    return 'rgb(' + (this.r * 255 | 0) + ',' + (this.g * 255 | 0) + ',' + (this.b * 255 | 0) + ')';
+  }
+
+  offsetHSL(h, s, l) {
+    this.getHSL(_hslA);
+    _hslA.h += h;
+    _hslA.s += s;
+    _hslA.l += l;
+    this.setHSL(_hslA.h, _hslA.s, _hslA.l);
+    return this;
+  }
+
+  add(color) {
+    this.r += color.r;
+    this.g += color.g;
+    this.b += color.b;
+    return this;
+  }
+
+  addColors(color1, color2) {
+    this.r = color1.r + color2.r;
+    this.g = color1.g + color2.g;
+    this.b = color1.b + color2.b;
+    return this;
+  }
+
+  addScalar(s) {
+    this.r += s;
+    this.g += s;
+    this.b += s;
+    return this;
+  }
+
+  sub(color) {
+    this.r = Math.max(0, this.r - color.r);
+    this.g = Math.max(0, this.g - color.g);
+    this.b = Math.max(0, this.b - color.b);
+    return this;
+  }
+
+  multiply(color) {
+    this.r *= color.r;
+    this.g *= color.g;
+    this.b *= color.b;
+    return this;
+  }
+
+  multiplyScalar(s) {
+    this.r *= s;
+    this.g *= s;
+    this.b *= s;
+    return this;
+  }
+
+  lerp(color, alpha) {
+    this.r += (color.r - this.r) * alpha;
+    this.g += (color.g - this.g) * alpha;
+    this.b += (color.b - this.b) * alpha;
+    return this;
+  }
+
+  lerpColors(color1, color2, alpha) {
+    this.r = color1.r + (color2.r - color1.r) * alpha;
+    this.g = color1.g + (color2.g - color1.g) * alpha;
+    this.b = color1.b + (color2.b - color1.b) * alpha;
+    return this;
+  }
+
+  lerpHSL(color, alpha) {
+    this.getHSL(_hslA);
+    color.getHSL(_hslB);
+    const h = MathUtils.lerp(_hslA.h, _hslB.h, alpha);
+    const s = MathUtils.lerp(_hslA.s, _hslB.s, alpha);
+    const l = MathUtils.lerp(_hslA.l, _hslB.l, alpha);
+    this.setHSL(h, s, l);
+    return this;
+  }
+
+  equals(c) {
+    return c.r === this.r && c.g === this.g && c.b === this.b;
+  }
+
+  fromArray(array, offset = 0) {
+    this.r = array[offset];
+    this.g = array[offset + 1];
+    this.b = array[offset + 2];
+    return this;
+  }
+
+  toArray(array = [], offset = 0) {
+    array[offset] = this.r;
+    array[offset + 1] = this.g;
+    array[offset + 2] = this.b;
+    return array;
+  }
+
+  fromBufferAttribute(attribute, index) {
+    this.r = attribute.getX(index);
+    this.g = attribute.getY(index);
+    this.b = attribute.getZ(index);
+
+    if (attribute.normalized === true) {
+      // assuming Uint8Array
+      this.r /= 255;
+      this.g /= 255;
+      this.b /= 255;
+    }
+
+    return this;
+  }
+
+  toJSON() {
+    return this.getHex();
+  }
+
+}
+
+exports.Color = Color;
+Color.NAMES = _colorKeywords;
+Color.prototype.isColor = true;
+Color.prototype.r = 1;
+Color.prototype.g = 1;
+Color.prototype.b = 1;
+/**
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  lightMap: new THREE.Texture( <Image> ),
+ *  lightMapIntensity: <float>
+ *
+ *  aoMap: new THREE.Texture( <Image> ),
+ *  aoMapIntensity: <float>
+ *
+ *  specularMap: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
+ *  combine: THREE.Multiply,
+ *  reflectivity: <float>,
+ *  refractionRatio: <float>,
+ *
+ *  depthTest: <bool>,
+ *  depthWrite: <bool>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>
+ * }
+ */
+
+class MeshBasicMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'MeshBasicMaterial';
+    this.color = new Color(0xffffff); // emissive
+
+    this.map = null;
+    this.lightMap = null;
+    this.lightMapIntensity = 1.0;
+    this.aoMap = null;
+    this.aoMapIntensity = 1.0;
+    this.specularMap = null;
+    this.alphaMap = null;
+    this.envMap = null;
+    this.combine = MultiplyOperation;
+    this.reflectivity = 1;
+    this.refractionRatio = 0.98;
+    this.wireframe = false;
+    this.wireframeLinewidth = 1;
+    this.wireframeLinecap = 'round';
+    this.wireframeLinejoin = 'round';
+    this.skinning = false;
+    this.morphTargets = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.color.copy(source.color);
+    this.map = source.map;
+    this.lightMap = source.lightMap;
+    this.lightMapIntensity = source.lightMapIntensity;
+    this.aoMap = source.aoMap;
+    this.aoMapIntensity = source.aoMapIntensity;
+    this.specularMap = source.specularMap;
+    this.alphaMap = source.alphaMap;
+    this.envMap = source.envMap;
+    this.combine = source.combine;
+    this.reflectivity = source.reflectivity;
+    this.refractionRatio = source.refractionRatio;
+    this.wireframe = source.wireframe;
+    this.wireframeLinewidth = source.wireframeLinewidth;
+    this.wireframeLinecap = source.wireframeLinecap;
+    this.wireframeLinejoin = source.wireframeLinejoin;
+    this.skinning = source.skinning;
+    this.morphTargets = source.morphTargets;
+    return this;
+  }
+
+}
+
+exports.MeshBasicMaterial = MeshBasicMaterial;
+MeshBasicMaterial.prototype.isMeshBasicMaterial = true;
+
+const _vector$3 = new Vector3();
+
+const _vector2$1 = new Vector2();
+
+function BufferAttribute(array, itemSize, normalized) {
+  if (Array.isArray(array)) {
+    throw new TypeError('THREE.BufferAttribute: array should be a Typed Array.');
+  }
+
+  this.name = '';
+  this.array = array;
+  this.itemSize = itemSize;
+  this.count = array !== undefined ? array.length / itemSize : 0;
+  this.normalized = normalized === true;
+  this.usage = StaticDrawUsage;
+  this.updateRange = {
+    offset: 0,
+    count: -1
+  };
+  this.version = 0;
+}
+
+Object.defineProperty(BufferAttribute.prototype, 'needsUpdate', {
+  set: function (value) {
+    if (value === true) this.version++;
+  }
+});
+Object.assign(BufferAttribute.prototype, {
+  isBufferAttribute: true,
+  onUploadCallback: function () {},
+  setUsage: function (value) {
+    this.usage = value;
+    return this;
+  },
+  copy: function (source) {
+    this.name = source.name;
+    this.array = new source.array.constructor(source.array);
+    this.itemSize = source.itemSize;
+    this.count = source.count;
+    this.normalized = source.normalized;
+    this.usage = source.usage;
+    return this;
+  },
+  copyAt: function (index1, attribute, index2) {
+    index1 *= this.itemSize;
+    index2 *= attribute.itemSize;
+
+    for (let i = 0, l = this.itemSize; i < l; i++) {
+      this.array[index1 + i] = attribute.array[index2 + i];
+    }
+
+    return this;
+  },
+  copyArray: function (array) {
+    this.array.set(array);
+    return this;
+  },
+  copyColorsArray: function (colors) {
+    const array = this.array;
+    let offset = 0;
+
+    for (let i = 0, l = colors.length; i < l; i++) {
+      let color = colors[i];
+
+      if (color === undefined) {
+        console.warn('THREE.BufferAttribute.copyColorsArray(): color is undefined', i);
+        color = new Color();
+      }
+
+      array[offset++] = color.r;
+      array[offset++] = color.g;
+      array[offset++] = color.b;
+    }
+
+    return this;
+  },
+  copyVector2sArray: function (vectors) {
+    const array = this.array;
+    let offset = 0;
+
+    for (let i = 0, l = vectors.length; i < l; i++) {
+      let vector = vectors[i];
+
+      if (vector === undefined) {
+        console.warn('THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i);
+        vector = new Vector2();
+      }
+
+      array[offset++] = vector.x;
+      array[offset++] = vector.y;
+    }
+
+    return this;
+  },
+  copyVector3sArray: function (vectors) {
+    const array = this.array;
+    let offset = 0;
+
+    for (let i = 0, l = vectors.length; i < l; i++) {
+      let vector = vectors[i];
+
+      if (vector === undefined) {
+        console.warn('THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i);
+        vector = new Vector3();
+      }
+
+      array[offset++] = vector.x;
+      array[offset++] = vector.y;
+      array[offset++] = vector.z;
+    }
+
+    return this;
+  },
+  copyVector4sArray: function (vectors) {
+    const array = this.array;
+    let offset = 0;
+
+    for (let i = 0, l = vectors.length; i < l; i++) {
+      let vector = vectors[i];
+
+      if (vector === undefined) {
+        console.warn('THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i);
+        vector = new Vector4();
+      }
+
+      array[offset++] = vector.x;
+      array[offset++] = vector.y;
+      array[offset++] = vector.z;
+      array[offset++] = vector.w;
+    }
+
+    return this;
+  },
+  applyMatrix3: function (m) {
+    if (this.itemSize === 2) {
+      for (let i = 0, l = this.count; i < l; i++) {
+        _vector2$1.fromBufferAttribute(this, i);
+
+        _vector2$1.applyMatrix3(m);
+
+        this.setXY(i, _vector2$1.x, _vector2$1.y);
+      }
+    } else if (this.itemSize === 3) {
+      for (let i = 0, l = this.count; i < l; i++) {
+        _vector$3.fromBufferAttribute(this, i);
+
+        _vector$3.applyMatrix3(m);
+
+        this.setXYZ(i, _vector$3.x, _vector$3.y, _vector$3.z);
+      }
+    }
+
+    return this;
+  },
+  applyMatrix4: function (m) {
+    for (let i = 0, l = this.count; i < l; i++) {
+      _vector$3.x = this.getX(i);
+      _vector$3.y = this.getY(i);
+      _vector$3.z = this.getZ(i);
+
+      _vector$3.applyMatrix4(m);
+
+      this.setXYZ(i, _vector$3.x, _vector$3.y, _vector$3.z);
+    }
+
+    return this;
+  },
+  applyNormalMatrix: function (m) {
+    for (let i = 0, l = this.count; i < l; i++) {
+      _vector$3.x = this.getX(i);
+      _vector$3.y = this.getY(i);
+      _vector$3.z = this.getZ(i);
+
+      _vector$3.applyNormalMatrix(m);
+
+      this.setXYZ(i, _vector$3.x, _vector$3.y, _vector$3.z);
+    }
+
+    return this;
+  },
+  transformDirection: function (m) {
+    for (let i = 0, l = this.count; i < l; i++) {
+      _vector$3.x = this.getX(i);
+      _vector$3.y = this.getY(i);
+      _vector$3.z = this.getZ(i);
+
+      _vector$3.transformDirection(m);
+
+      this.setXYZ(i, _vector$3.x, _vector$3.y, _vector$3.z);
+    }
+
+    return this;
+  },
+  set: function (value, offset = 0) {
+    this.array.set(value, offset);
+    return this;
+  },
+  getX: function (index) {
+    return this.array[index * this.itemSize];
+  },
+  setX: function (index, x) {
+    this.array[index * this.itemSize] = x;
+    return this;
+  },
+  getY: function (index) {
+    return this.array[index * this.itemSize + 1];
+  },
+  setY: function (index, y) {
+    this.array[index * this.itemSize + 1] = y;
+    return this;
+  },
+  getZ: function (index) {
+    return this.array[index * this.itemSize + 2];
+  },
+  setZ: function (index, z) {
+    this.array[index * this.itemSize + 2] = z;
+    return this;
+  },
+  getW: function (index) {
+    return this.array[index * this.itemSize + 3];
+  },
+  setW: function (index, w) {
+    this.array[index * this.itemSize + 3] = w;
+    return this;
+  },
+  setXY: function (index, x, y) {
+    index *= this.itemSize;
+    this.array[index + 0] = x;
+    this.array[index + 1] = y;
+    return this;
+  },
+  setXYZ: function (index, x, y, z) {
+    index *= this.itemSize;
+    this.array[index + 0] = x;
+    this.array[index + 1] = y;
+    this.array[index + 2] = z;
+    return this;
+  },
+  setXYZW: function (index, x, y, z, w) {
+    index *= this.itemSize;
+    this.array[index + 0] = x;
+    this.array[index + 1] = y;
+    this.array[index + 2] = z;
+    this.array[index + 3] = w;
+    return this;
+  },
+  onUpload: function (callback) {
+    this.onUploadCallback = callback;
+    return this;
+  },
+  clone: function () {
+    return new this.constructor(this.array, this.itemSize).copy(this);
+  },
+  toJSON: function () {
+    return {
+      itemSize: this.itemSize,
+      type: this.array.constructor.name,
+      array: Array.prototype.slice.call(this.array),
+      normalized: this.normalized
+    };
+  }
+}); //
+
+function Int8BufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Int8Array(array), itemSize, normalized);
+}
+
+Int8BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Int8BufferAttribute.prototype.constructor = Int8BufferAttribute;
+
+function Uint8BufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Uint8Array(array), itemSize, normalized);
+}
+
+Uint8BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;
+
+function Uint8ClampedBufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Uint8ClampedArray(array), itemSize, normalized);
+}
+
+Uint8ClampedBufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;
+
+function Int16BufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Int16Array(array), itemSize, normalized);
+}
+
+Int16BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Int16BufferAttribute.prototype.constructor = Int16BufferAttribute;
+
+function Uint16BufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Uint16Array(array), itemSize, normalized);
+}
+
+Uint16BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;
+
+function Int32BufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Int32Array(array), itemSize, normalized);
+}
+
+Int32BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Int32BufferAttribute.prototype.constructor = Int32BufferAttribute;
+
+function Uint32BufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Uint32Array(array), itemSize, normalized);
+}
+
+Uint32BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;
+
+function Float16BufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Uint16Array(array), itemSize, normalized);
+}
+
+Float16BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Float16BufferAttribute.prototype.constructor = Float16BufferAttribute;
+Float16BufferAttribute.prototype.isFloat16BufferAttribute = true;
+
+function Float32BufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Float32Array(array), itemSize, normalized);
+}
+
+Float32BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Float32BufferAttribute.prototype.constructor = Float32BufferAttribute;
+
+function Float64BufferAttribute(array, itemSize, normalized) {
+  BufferAttribute.call(this, new Float64Array(array), itemSize, normalized);
+}
+
+Float64BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
+Float64BufferAttribute.prototype.constructor = Float64BufferAttribute;
+
+function arrayMax(array) {
+  if (array.length === 0) return -Infinity;
+  let max = array[0];
+
+  for (let i = 1, l = array.length; i < l; ++i) {
+    if (array[i] > max) max = array[i];
+  }
+
+  return max;
+}
+
+const TYPED_ARRAYS = {
+  Int8Array: Int8Array,
+  Uint8Array: Uint8Array,
+  Uint8ClampedArray: Uint8ClampedArray,
+  Int16Array: Int16Array,
+  Uint16Array: Uint16Array,
+  Int32Array: Int32Array,
+  Uint32Array: Uint32Array,
+  Float32Array: Float32Array,
+  Float64Array: Float64Array
+};
+
+function getTypedArray(type, buffer) {
+  return new TYPED_ARRAYS[type](buffer);
+}
+
+let _id = 0;
+
+const _m1$2 = new Matrix4();
+
+const _obj = new Object3D();
+
+const _offset = new Vector3();
+
+const _box$2 = new Box3();
+
+const _boxMorphTargets = new Box3();
+
+const _vector$4 = new Vector3();
+
+function BufferGeometry() {
+  Object.defineProperty(this, 'id', {
+    value: _id++
+  });
+  this.uuid = MathUtils.generateUUID();
+  this.name = '';
+  this.type = 'BufferGeometry';
+  this.index = null;
+  this.attributes = {};
+  this.morphAttributes = {};
+  this.morphTargetsRelative = false;
+  this.groups = [];
+  this.boundingBox = null;
+  this.boundingSphere = null;
+  this.drawRange = {
+    start: 0,
+    count: Infinity
+  };
+  this.userData = {};
+}
+
+BufferGeometry.prototype = Object.assign(Object.create(EventDispatcher.prototype), {
+  constructor: BufferGeometry,
+  isBufferGeometry: true,
+  getIndex: function () {
+    return this.index;
+  },
+  setIndex: function (index) {
+    if (Array.isArray(index)) {
+      this.index = new (arrayMax(index) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute)(index, 1);
+    } else {
+      this.index = index;
+    }
+
+    return this;
+  },
+  getAttribute: function (name) {
+    return this.attributes[name];
+  },
+  setAttribute: function (name, attribute) {
+    this.attributes[name] = attribute;
+    return this;
+  },
+  deleteAttribute: function (name) {
+    delete this.attributes[name];
+    return this;
+  },
+  hasAttribute: function (name) {
+    return this.attributes[name] !== undefined;
+  },
+  addGroup: function (start, count, materialIndex = 0) {
+    this.groups.push({
+      start: start,
+      count: count,
+      materialIndex: materialIndex
+    });
+  },
+  clearGroups: function () {
+    this.groups = [];
+  },
+  setDrawRange: function (start, count) {
+    this.drawRange.start = start;
+    this.drawRange.count = count;
+  },
+  applyMatrix4: function (matrix) {
+    const position = this.attributes.position;
+
+    if (position !== undefined) {
+      position.applyMatrix4(matrix);
+      position.needsUpdate = true;
+    }
+
+    const normal = this.attributes.normal;
+
+    if (normal !== undefined) {
+      const normalMatrix = new Matrix3().getNormalMatrix(matrix);
+      normal.applyNormalMatrix(normalMatrix);
+      normal.needsUpdate = true;
+    }
+
+    const tangent = this.attributes.tangent;
+
+    if (tangent !== undefined) {
+      tangent.transformDirection(matrix);
+      tangent.needsUpdate = true;
+    }
+
+    if (this.boundingBox !== null) {
+      this.computeBoundingBox();
+    }
+
+    if (this.boundingSphere !== null) {
+      this.computeBoundingSphere();
+    }
+
+    return this;
+  },
+  rotateX: function (angle) {
+    // rotate geometry around world x-axis
+    _m1$2.makeRotationX(angle);
+
+    this.applyMatrix4(_m1$2);
+    return this;
+  },
+  rotateY: function (angle) {
+    // rotate geometry around world y-axis
+    _m1$2.makeRotationY(angle);
+
+    this.applyMatrix4(_m1$2);
+    return this;
+  },
+  rotateZ: function (angle) {
+    // rotate geometry around world z-axis
+    _m1$2.makeRotationZ(angle);
+
+    this.applyMatrix4(_m1$2);
+    return this;
+  },
+  translate: function (x, y, z) {
+    // translate geometry
+    _m1$2.makeTranslation(x, y, z);
+
+    this.applyMatrix4(_m1$2);
+    return this;
+  },
+  scale: function (x, y, z) {
+    // scale geometry
+    _m1$2.makeScale(x, y, z);
+
+    this.applyMatrix4(_m1$2);
+    return this;
+  },
+  lookAt: function (vector) {
+    _obj.lookAt(vector);
+
+    _obj.updateMatrix();
+
+    this.applyMatrix4(_obj.matrix);
+    return this;
+  },
+  center: function () {
+    this.computeBoundingBox();
+    this.boundingBox.getCenter(_offset).negate();
+    this.translate(_offset.x, _offset.y, _offset.z);
+    return this;
+  },
+  setFromPoints: function (points) {
+    const position = [];
+
+    for (let i = 0, l = points.length; i < l; i++) {
+      const point = points[i];
+      position.push(point.x, point.y, point.z || 0);
+    }
+
+    this.setAttribute('position', new Float32BufferAttribute(position, 3));
+    return this;
+  },
+  computeBoundingBox: function () {
+    if (this.boundingBox === null) {
+      this.boundingBox = new Box3();
+    }
+
+    const position = this.attributes.position;
+    const morphAttributesPosition = this.morphAttributes.position;
+
+    if (position && position.isGLBufferAttribute) {
+      console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".', this);
+      this.boundingBox.set(new Vector3(-Infinity, -Infinity, -Infinity), new Vector3(+Infinity, +Infinity, +Infinity));
+      return;
+    }
+
+    if (position !== undefined) {
+      this.boundingBox.setFromBufferAttribute(position); // process morph attributes if present
+
+      if (morphAttributesPosition) {
+        for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
+          const morphAttribute = morphAttributesPosition[i];
+
+          _box$2.setFromBufferAttribute(morphAttribute);
+
+          if (this.morphTargetsRelative) {
+            _vector$4.addVectors(this.boundingBox.min, _box$2.min);
+
+            this.boundingBox.expandByPoint(_vector$4);
+
+            _vector$4.addVectors(this.boundingBox.max, _box$2.max);
+
+            this.boundingBox.expandByPoint(_vector$4);
+          } else {
+            this.boundingBox.expandByPoint(_box$2.min);
+            this.boundingBox.expandByPoint(_box$2.max);
+          }
+        }
+      }
+    } else {
+      this.boundingBox.makeEmpty();
+    }
+
+    if (isNaN(this.boundingBox.min.x) || isNaN(this.boundingBox.min.y) || isNaN(this.boundingBox.min.z)) {
+      console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this);
+    }
+  },
+  computeBoundingSphere: function () {
+    if (this.boundingSphere === null) {
+      this.boundingSphere = new Sphere();
+    }
+
+    const position = this.attributes.position;
+    const morphAttributesPosition = this.morphAttributes.position;
+
+    if (position && position.isGLBufferAttribute) {
+      console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".', this);
+      this.boundingSphere.set(new Vector3(), Infinity);
+      return;
+    }
+
+    if (position) {
+      // first, find the center of the bounding sphere
+      const center = this.boundingSphere.center;
+
+      _box$2.setFromBufferAttribute(position); // process morph attributes if present
+
+
+      if (morphAttributesPosition) {
+        for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
+          const morphAttribute = morphAttributesPosition[i];
+
+          _boxMorphTargets.setFromBufferAttribute(morphAttribute);
+
+          if (this.morphTargetsRelative) {
+            _vector$4.addVectors(_box$2.min, _boxMorphTargets.min);
+
+            _box$2.expandByPoint(_vector$4);
+
+            _vector$4.addVectors(_box$2.max, _boxMorphTargets.max);
+
+            _box$2.expandByPoint(_vector$4);
+          } else {
+            _box$2.expandByPoint(_boxMorphTargets.min);
+
+            _box$2.expandByPoint(_boxMorphTargets.max);
+          }
+        }
+      }
+
+      _box$2.getCenter(center); // second, try to find a boundingSphere with a radius smaller than the
+      // boundingSphere of the boundingBox: sqrt(3) smaller in the best case
+
+
+      let maxRadiusSq = 0;
+
+      for (let i = 0, il = position.count; i < il; i++) {
+        _vector$4.fromBufferAttribute(position, i);
+
+        maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(_vector$4));
+      } // process morph attributes if present
+
+
+      if (morphAttributesPosition) {
+        for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
+          const morphAttribute = morphAttributesPosition[i];
+          const morphTargetsRelative = this.morphTargetsRelative;
+
+          for (let j = 0, jl = morphAttribute.count; j < jl; j++) {
+            _vector$4.fromBufferAttribute(morphAttribute, j);
+
+            if (morphTargetsRelative) {
+              _offset.fromBufferAttribute(position, j);
+
+              _vector$4.add(_offset);
+            }
+
+            maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(_vector$4));
+          }
+        }
+      }
+
+      this.boundingSphere.radius = Math.sqrt(maxRadiusSq);
+
+      if (isNaN(this.boundingSphere.radius)) {
+        console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this);
+      }
+    }
+  },
+  computeFaceNormals: function () {// backwards compatibility
+  },
+  computeTangents: function () {
+    const index = this.index;
+    const attributes = this.attributes; // based on http://www.terathon.com/code/tangent.html
+    // (per vertex tangents)
+
+    if (index === null || attributes.position === undefined || attributes.normal === undefined || attributes.uv === undefined) {
+      console.error('THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)');
+      return;
+    }
+
+    const indices = index.array;
+    const positions = attributes.position.array;
+    const normals = attributes.normal.array;
+    const uvs = attributes.uv.array;
+    const nVertices = positions.length / 3;
+
+    if (attributes.tangent === undefined) {
+      this.setAttribute('tangent', new BufferAttribute(new Float32Array(4 * nVertices), 4));
+    }
+
+    const tangents = attributes.tangent.array;
+    const tan1 = [],
+          tan2 = [];
+
+    for (let i = 0; i < nVertices; i++) {
+      tan1[i] = new Vector3();
+      tan2[i] = new Vector3();
+    }
+
+    const vA = new Vector3(),
+          vB = new Vector3(),
+          vC = new Vector3(),
+          uvA = new Vector2(),
+          uvB = new Vector2(),
+          uvC = new Vector2(),
+          sdir = new Vector3(),
+          tdir = new Vector3();
+
+    function handleTriangle(a, b, c) {
+      vA.fromArray(positions, a * 3);
+      vB.fromArray(positions, b * 3);
+      vC.fromArray(positions, c * 3);
+      uvA.fromArray(uvs, a * 2);
+      uvB.fromArray(uvs, b * 2);
+      uvC.fromArray(uvs, c * 2);
+      vB.sub(vA);
+      vC.sub(vA);
+      uvB.sub(uvA);
+      uvC.sub(uvA);
+      const r = 1.0 / (uvB.x * uvC.y - uvC.x * uvB.y); // silently ignore degenerate uv triangles having coincident or colinear vertices
+
+      if (!isFinite(r)) return;
+      sdir.copy(vB).multiplyScalar(uvC.y).addScaledVector(vC, -uvB.y).multiplyScalar(r);
+      tdir.copy(vC).multiplyScalar(uvB.x).addScaledVector(vB, -uvC.x).multiplyScalar(r);
+      tan1[a].add(sdir);
+      tan1[b].add(sdir);
+      tan1[c].add(sdir);
+      tan2[a].add(tdir);
+      tan2[b].add(tdir);
+      tan2[c].add(tdir);
+    }
+
+    let groups = this.groups;
+
+    if (groups.length === 0) {
+      groups = [{
+        start: 0,
+        count: indices.length
+      }];
+    }
+
+    for (let i = 0, il = groups.length; i < il; ++i) {
+      const group = groups[i];
+      const start = group.start;
+      const count = group.count;
+
+      for (let j = start, jl = start + count; j < jl; j += 3) {
+        handleTriangle(indices[j + 0], indices[j + 1], indices[j + 2]);
+      }
+    }
+
+    const tmp = new Vector3(),
+          tmp2 = new Vector3();
+    const n = new Vector3(),
+          n2 = new Vector3();
+
+    function handleVertex(v) {
+      n.fromArray(normals, v * 3);
+      n2.copy(n);
+      const t = tan1[v]; // Gram-Schmidt orthogonalize
+
+      tmp.copy(t);
+      tmp.sub(n.multiplyScalar(n.dot(t))).normalize(); // Calculate handedness
+
+      tmp2.crossVectors(n2, t);
+      const test = tmp2.dot(tan2[v]);
+      const w = test < 0.0 ? -1.0 : 1.0;
+      tangents[v * 4] = tmp.x;
+      tangents[v * 4 + 1] = tmp.y;
+      tangents[v * 4 + 2] = tmp.z;
+      tangents[v * 4 + 3] = w;
+    }
+
+    for (let i = 0, il = groups.length; i < il; ++i) {
+      const group = groups[i];
+      const start = group.start;
+      const count = group.count;
+
+      for (let j = start, jl = start + count; j < jl; j += 3) {
+        handleVertex(indices[j + 0]);
+        handleVertex(indices[j + 1]);
+        handleVertex(indices[j + 2]);
+      }
+    }
+  },
+  computeVertexNormals: function () {
+    const index = this.index;
+    const positionAttribute = this.getAttribute('position');
+
+    if (positionAttribute !== undefined) {
+      let normalAttribute = this.getAttribute('normal');
+
+      if (normalAttribute === undefined) {
+        normalAttribute = new BufferAttribute(new Float32Array(positionAttribute.count * 3), 3);
+        this.setAttribute('normal', normalAttribute);
+      } else {
+        // reset existing normals to zero
+        for (let i = 0, il = normalAttribute.count; i < il; i++) {
+          normalAttribute.setXYZ(i, 0, 0, 0);
+        }
+      }
+
+      const pA = new Vector3(),
+            pB = new Vector3(),
+            pC = new Vector3();
+      const nA = new Vector3(),
+            nB = new Vector3(),
+            nC = new Vector3();
+      const cb = new Vector3(),
+            ab = new Vector3(); // indexed elements
+
+      if (index) {
+        for (let i = 0, il = index.count; i < il; i += 3) {
+          const vA = index.getX(i + 0);
+          const vB = index.getX(i + 1);
+          const vC = index.getX(i + 2);
+          pA.fromBufferAttribute(positionAttribute, vA);
+          pB.fromBufferAttribute(positionAttribute, vB);
+          pC.fromBufferAttribute(positionAttribute, vC);
+          cb.subVectors(pC, pB);
+          ab.subVectors(pA, pB);
+          cb.cross(ab);
+          nA.fromBufferAttribute(normalAttribute, vA);
+          nB.fromBufferAttribute(normalAttribute, vB);
+          nC.fromBufferAttribute(normalAttribute, vC);
+          nA.add(cb);
+          nB.add(cb);
+          nC.add(cb);
+          normalAttribute.setXYZ(vA, nA.x, nA.y, nA.z);
+          normalAttribute.setXYZ(vB, nB.x, nB.y, nB.z);
+          normalAttribute.setXYZ(vC, nC.x, nC.y, nC.z);
+        }
+      } else {
+        // non-indexed elements (unconnected triangle soup)
+        for (let i = 0, il = positionAttribute.count; i < il; i += 3) {
+          pA.fromBufferAttribute(positionAttribute, i + 0);
+          pB.fromBufferAttribute(positionAttribute, i + 1);
+          pC.fromBufferAttribute(positionAttribute, i + 2);
+          cb.subVectors(pC, pB);
+          ab.subVectors(pA, pB);
+          cb.cross(ab);
+          normalAttribute.setXYZ(i + 0, cb.x, cb.y, cb.z);
+          normalAttribute.setXYZ(i + 1, cb.x, cb.y, cb.z);
+          normalAttribute.setXYZ(i + 2, cb.x, cb.y, cb.z);
+        }
+      }
+
+      this.normalizeNormals();
+      normalAttribute.needsUpdate = true;
+    }
+  },
+  merge: function (geometry, offset) {
+    if (!(geometry && geometry.isBufferGeometry)) {
+      console.error('THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry);
+      return;
+    }
+
+    if (offset === undefined) {
+      offset = 0;
+      console.warn('THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. ' + 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.');
+    }
+
+    const attributes = this.attributes;
+
+    for (const key in attributes) {
+      if (geometry.attributes[key] === undefined) continue;
+      const attribute1 = attributes[key];
+      const attributeArray1 = attribute1.array;
+      const attribute2 = geometry.attributes[key];
+      const attributeArray2 = attribute2.array;
+      const attributeOffset = attribute2.itemSize * offset;
+      const length = Math.min(attributeArray2.length, attributeArray1.length - attributeOffset);
+
+      for (let i = 0, j = attributeOffset; i < length; i++, j++) {
+        attributeArray1[j] = attributeArray2[i];
+      }
+    }
+
+    return this;
+  },
+  normalizeNormals: function () {
+    const normals = this.attributes.normal;
+
+    for (let i = 0, il = normals.count; i < il; i++) {
+      _vector$4.fromBufferAttribute(normals, i);
+
+      _vector$4.normalize();
+
+      normals.setXYZ(i, _vector$4.x, _vector$4.y, _vector$4.z);
+    }
+  },
+  toNonIndexed: function () {
+    function convertBufferAttribute(attribute, indices) {
+      const array = attribute.array;
+      const itemSize = attribute.itemSize;
+      const normalized = attribute.normalized;
+      const array2 = new array.constructor(indices.length * itemSize);
+      let index = 0,
+          index2 = 0;
+
+      for (let i = 0, l = indices.length; i < l; i++) {
+        index = indices[i] * itemSize;
+
+        for (let j = 0; j < itemSize; j++) {
+          array2[index2++] = array[index++];
+        }
+      }
+
+      return new BufferAttribute(array2, itemSize, normalized);
+    } //
+
+
+    if (this.index === null) {
+      console.warn('THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed.');
+      return this;
+    }
+
+    const geometry2 = new BufferGeometry();
+    const indices = this.index.array;
+    const attributes = this.attributes; // attributes
+
+    for (const name in attributes) {
+      const attribute = attributes[name];
+      const newAttribute = convertBufferAttribute(attribute, indices);
+      geometry2.setAttribute(name, newAttribute);
+    } // morph attributes
+
+
+    const morphAttributes = this.morphAttributes;
+
+    for (const name in morphAttributes) {
+      const morphArray = [];
+      const morphAttribute = morphAttributes[name]; // morphAttribute: array of Float32BufferAttributes
+
+      for (let i = 0, il = morphAttribute.length; i < il; i++) {
+        const attribute = morphAttribute[i];
+        const newAttribute = convertBufferAttribute(attribute, indices);
+        morphArray.push(newAttribute);
+      }
+
+      geometry2.morphAttributes[name] = morphArray;
+    }
+
+    geometry2.morphTargetsRelative = this.morphTargetsRelative; // groups
+
+    const groups = this.groups;
+
+    for (let i = 0, l = groups.length; i < l; i++) {
+      const group = groups[i];
+      geometry2.addGroup(group.start, group.count, group.materialIndex);
+    }
+
+    return geometry2;
+  },
+  toJSON: function () {
+    const data = {
+      metadata: {
+        version: 4.5,
+        type: 'BufferGeometry',
+        generator: 'BufferGeometry.toJSON'
+      }
+    }; // standard BufferGeometry serialization
+
+    data.uuid = this.uuid;
+    data.type = this.type;
+    if (this.name !== '') data.name = this.name;
+    if (Object.keys(this.userData).length > 0) data.userData = this.userData;
+
+    if (this.parameters !== undefined) {
+      const parameters = this.parameters;
+
+      for (const key in parameters) {
+        if (parameters[key] !== undefined) data[key] = parameters[key];
+      }
+
+      return data;
+    }
+
+    data.data = {
+      attributes: {}
+    };
+    const index = this.index;
+
+    if (index !== null) {
+      data.data.index = {
+        type: index.array.constructor.name,
+        array: Array.prototype.slice.call(index.array)
+      };
+    }
+
+    const attributes = this.attributes;
+
+    for (const key in attributes) {
+      const attribute = attributes[key];
+      const attributeData = attribute.toJSON(data.data);
+      if (attribute.name !== '') attributeData.name = attribute.name;
+      data.data.attributes[key] = attributeData;
+    }
+
+    const morphAttributes = {};
+    let hasMorphAttributes = false;
+
+    for (const key in this.morphAttributes) {
+      const attributeArray = this.morphAttributes[key];
+      const array = [];
+
+      for (let i = 0, il = attributeArray.length; i < il; i++) {
+        const attribute = attributeArray[i];
+        const attributeData = attribute.toJSON(data.data);
+        if (attribute.name !== '') attributeData.name = attribute.name;
+        array.push(attributeData);
+      }
+
+      if (array.length > 0) {
+        morphAttributes[key] = array;
+        hasMorphAttributes = true;
+      }
+    }
+
+    if (hasMorphAttributes) {
+      data.data.morphAttributes = morphAttributes;
+      data.data.morphTargetsRelative = this.morphTargetsRelative;
+    }
+
+    const groups = this.groups;
+
+    if (groups.length > 0) {
+      data.data.groups = JSON.parse(JSON.stringify(groups));
+    }
+
+    const boundingSphere = this.boundingSphere;
+
+    if (boundingSphere !== null) {
+      data.data.boundingSphere = {
+        center: boundingSphere.center.toArray(),
+        radius: boundingSphere.radius
+      };
+    }
+
+    return data;
+  },
+  clone: function () {
+    /*
+     // Handle primitives
+    	 const parameters = this.parameters;
+    	 if ( parameters !== undefined ) {
+    	 const values = [];
+    	 for ( const key in parameters ) {
+    	 values.push( parameters[ key ] );
+    	 }
+    	 const geometry = Object.create( this.constructor.prototype );
+     this.constructor.apply( geometry, values );
+     return geometry;
+    	 }
+    	 return new this.constructor().copy( this );
+     */
+    return new BufferGeometry().copy(this);
+  },
+  copy: function (source) {
+    // reset
+    this.index = null;
+    this.attributes = {};
+    this.morphAttributes = {};
+    this.groups = [];
+    this.boundingBox = null;
+    this.boundingSphere = null; // used for storing cloned, shared data
+
+    const data = {}; // name
+
+    this.name = source.name; // index
+
+    const index = source.index;
+
+    if (index !== null) {
+      this.setIndex(index.clone(data));
+    } // attributes
+
+
+    const attributes = source.attributes;
+
+    for (const name in attributes) {
+      const attribute = attributes[name];
+      this.setAttribute(name, attribute.clone(data));
+    } // morph attributes
+
+
+    const morphAttributes = source.morphAttributes;
+
+    for (const name in morphAttributes) {
+      const array = [];
+      const morphAttribute = morphAttributes[name]; // morphAttribute: array of Float32BufferAttributes
+
+      for (let i = 0, l = morphAttribute.length; i < l; i++) {
+        array.push(morphAttribute[i].clone(data));
+      }
+
+      this.morphAttributes[name] = array;
+    }
+
+    this.morphTargetsRelative = source.morphTargetsRelative; // groups
+
+    const groups = source.groups;
+
+    for (let i = 0, l = groups.length; i < l; i++) {
+      const group = groups[i];
+      this.addGroup(group.start, group.count, group.materialIndex);
+    } // bounding box
+
+
+    const boundingBox = source.boundingBox;
+
+    if (boundingBox !== null) {
+      this.boundingBox = boundingBox.clone();
+    } // bounding sphere
+
+
+    const boundingSphere = source.boundingSphere;
+
+    if (boundingSphere !== null) {
+      this.boundingSphere = boundingSphere.clone();
+    } // draw range
+
+
+    this.drawRange.start = source.drawRange.start;
+    this.drawRange.count = source.drawRange.count; // user data
+
+    this.userData = source.userData;
+    return this;
+  },
+  dispose: function () {
+    this.dispatchEvent({
+      type: 'dispose'
+    });
+  }
+});
+
+const _inverseMatrix = new Matrix4();
+
+const _ray = new Ray();
+
+const _sphere = new Sphere();
+
+const _vA = new Vector3();
+
+const _vB = new Vector3();
+
+const _vC = new Vector3();
+
+const _tempA = new Vector3();
+
+const _tempB = new Vector3();
+
+const _tempC = new Vector3();
+
+const _morphA = new Vector3();
+
+const _morphB = new Vector3();
+
+const _morphC = new Vector3();
+
+const _uvA = new Vector2();
+
+const _uvB = new Vector2();
+
+const _uvC = new Vector2();
+
+const _intersectionPoint = new Vector3();
+
+const _intersectionPointWorld = new Vector3();
+
+function Mesh(geometry = new BufferGeometry(), material = new MeshBasicMaterial()) {
+  Object3D.call(this);
+  this.type = 'Mesh';
+  this.geometry = geometry;
+  this.material = material;
+  this.updateMorphTargets();
+}
+
+Mesh.prototype = Object.assign(Object.create(Object3D.prototype), {
+  constructor: Mesh,
+  isMesh: true,
+  copy: function (source) {
+    Object3D.prototype.copy.call(this, source);
+
+    if (source.morphTargetInfluences !== undefined) {
+      this.morphTargetInfluences = source.morphTargetInfluences.slice();
+    }
+
+    if (source.morphTargetDictionary !== undefined) {
+      this.morphTargetDictionary = Object.assign({}, source.morphTargetDictionary);
+    }
+
+    this.material = source.material;
+    this.geometry = source.geometry;
+    return this;
+  },
+  updateMorphTargets: function () {
+    const geometry = this.geometry;
+
+    if (geometry.isBufferGeometry) {
+      const morphAttributes = geometry.morphAttributes;
+      const keys = Object.keys(morphAttributes);
+
+      if (keys.length > 0) {
+        const morphAttribute = morphAttributes[keys[0]];
+
+        if (morphAttribute !== undefined) {
+          this.morphTargetInfluences = [];
+          this.morphTargetDictionary = {};
+
+          for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
+            const name = morphAttribute[m].name || String(m);
+            this.morphTargetInfluences.push(0);
+            this.morphTargetDictionary[name] = m;
+          }
+        }
+      }
+    } else {
+      const morphTargets = geometry.morphTargets;
+
+      if (morphTargets !== undefined && morphTargets.length > 0) {
+        console.error('THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
+      }
+    }
+  },
+  raycast: function (raycaster, intersects) {
+    const geometry = this.geometry;
+    const material = this.material;
+    const matrixWorld = this.matrixWorld;
+    if (material === undefined) return; // Checking boundingSphere distance to ray
+
+    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
+
+    _sphere.copy(geometry.boundingSphere);
+
+    _sphere.applyMatrix4(matrixWorld);
+
+    if (raycaster.ray.intersectsSphere(_sphere) === false) return; //
+
+    _inverseMatrix.copy(matrixWorld).invert();
+
+    _ray.copy(raycaster.ray).applyMatrix4(_inverseMatrix); // Check boundingBox before continuing
+
+
+    if (geometry.boundingBox !== null) {
+      if (_ray.intersectsBox(geometry.boundingBox) === false) return;
+    }
+
+    let intersection;
+
+    if (geometry.isBufferGeometry) {
+      const index = geometry.index;
+      const position = geometry.attributes.position;
+      const morphPosition = geometry.morphAttributes.position;
+      const morphTargetsRelative = geometry.morphTargetsRelative;
+      const uv = geometry.attributes.uv;
+      const uv2 = geometry.attributes.uv2;
+      const groups = geometry.groups;
+      const drawRange = geometry.drawRange;
+
+      if (index !== null) {
+        // indexed buffer geometry
+        if (Array.isArray(material)) {
+          for (let i = 0, il = groups.length; i < il; i++) {
+            const group = groups[i];
+            const groupMaterial = material[group.materialIndex];
+            const start = Math.max(group.start, drawRange.start);
+            const end = Math.min(group.start + group.count, drawRange.start + drawRange.count);
+
+            for (let j = start, jl = end; j < jl; j += 3) {
+              const a = index.getX(j);
+              const b = index.getX(j + 1);
+              const c = index.getX(j + 2);
+              intersection = checkBufferGeometryIntersection(this, groupMaterial, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);
+
+              if (intersection) {
+                intersection.faceIndex = Math.floor(j / 3); // triangle number in indexed buffer semantics
+
+                intersection.face.materialIndex = group.materialIndex;
+                intersects.push(intersection);
+              }
+            }
+          }
+        } else {
+          const start = Math.max(0, drawRange.start);
+          const end = Math.min(index.count, drawRange.start + drawRange.count);
+
+          for (let i = start, il = end; i < il; i += 3) {
+            const a = index.getX(i);
+            const b = index.getX(i + 1);
+            const c = index.getX(i + 2);
+            intersection = checkBufferGeometryIntersection(this, material, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);
+
+            if (intersection) {
+              intersection.faceIndex = Math.floor(i / 3); // triangle number in indexed buffer semantics
+
+              intersects.push(intersection);
+            }
+          }
+        }
+      } else if (position !== undefined) {
+        // non-indexed buffer geometry
+        if (Array.isArray(material)) {
+          for (let i = 0, il = groups.length; i < il; i++) {
+            const group = groups[i];
+            const groupMaterial = material[group.materialIndex];
+            const start = Math.max(group.start, drawRange.start);
+            const end = Math.min(group.start + group.count, drawRange.start + drawRange.count);
+
+            for (let j = start, jl = end; j < jl; j += 3) {
+              const a = j;
+              const b = j + 1;
+              const c = j + 2;
+              intersection = checkBufferGeometryIntersection(this, groupMaterial, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);
+
+              if (intersection) {
+                intersection.faceIndex = Math.floor(j / 3); // triangle number in non-indexed buffer semantics
+
+                intersection.face.materialIndex = group.materialIndex;
+                intersects.push(intersection);
+              }
+            }
+          }
+        } else {
+          const start = Math.max(0, drawRange.start);
+          const end = Math.min(position.count, drawRange.start + drawRange.count);
+
+          for (let i = start, il = end; i < il; i += 3) {
+            const a = i;
+            const b = i + 1;
+            const c = i + 2;
+            intersection = checkBufferGeometryIntersection(this, material, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);
+
+            if (intersection) {
+              intersection.faceIndex = Math.floor(i / 3); // triangle number in non-indexed buffer semantics
+
+              intersects.push(intersection);
+            }
+          }
+        }
+      }
+    } else if (geometry.isGeometry) {
+      console.error('THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
+    }
+  }
+});
+
+function checkIntersection(object, material, raycaster, ray, pA, pB, pC, point) {
+  let intersect;
+
+  if (material.side === BackSide) {
+    intersect = ray.intersectTriangle(pC, pB, pA, true, point);
+  } else {
+    intersect = ray.intersectTriangle(pA, pB, pC, material.side !== DoubleSide, point);
+  }
+
+  if (intersect === null) return null;
+
+  _intersectionPointWorld.copy(point);
+
+  _intersectionPointWorld.applyMatrix4(object.matrixWorld);
+
+  const distance = raycaster.ray.origin.distanceTo(_intersectionPointWorld);
+  if (distance < raycaster.near || distance > raycaster.far) return null;
+  return {
+    distance: distance,
+    point: _intersectionPointWorld.clone(),
+    object: object
+  };
+}
+
+function checkBufferGeometryIntersection(object, material, raycaster, ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c) {
+  _vA.fromBufferAttribute(position, a);
+
+  _vB.fromBufferAttribute(position, b);
+
+  _vC.fromBufferAttribute(position, c);
+
+  const morphInfluences = object.morphTargetInfluences;
+
+  if (material.morphTargets && morphPosition && morphInfluences) {
+    _morphA.set(0, 0, 0);
+
+    _morphB.set(0, 0, 0);
+
+    _morphC.set(0, 0, 0);
+
+    for (let i = 0, il = morphPosition.length; i < il; i++) {
+      const influence = morphInfluences[i];
+      const morphAttribute = morphPosition[i];
+      if (influence === 0) continue;
+
+      _tempA.fromBufferAttribute(morphAttribute, a);
+
+      _tempB.fromBufferAttribute(morphAttribute, b);
+
+      _tempC.fromBufferAttribute(morphAttribute, c);
+
+      if (morphTargetsRelative) {
+        _morphA.addScaledVector(_tempA, influence);
+
+        _morphB.addScaledVector(_tempB, influence);
+
+        _morphC.addScaledVector(_tempC, influence);
+      } else {
+        _morphA.addScaledVector(_tempA.sub(_vA), influence);
+
+        _morphB.addScaledVector(_tempB.sub(_vB), influence);
+
+        _morphC.addScaledVector(_tempC.sub(_vC), influence);
+      }
+    }
+
+    _vA.add(_morphA);
+
+    _vB.add(_morphB);
+
+    _vC.add(_morphC);
+  }
+
+  if (object.isSkinnedMesh && material.skinning) {
+    object.boneTransform(a, _vA);
+    object.boneTransform(b, _vB);
+    object.boneTransform(c, _vC);
+  }
+
+  const intersection = checkIntersection(object, material, raycaster, ray, _vA, _vB, _vC, _intersectionPoint);
+
+  if (intersection) {
+    if (uv) {
+      _uvA.fromBufferAttribute(uv, a);
+
+      _uvB.fromBufferAttribute(uv, b);
+
+      _uvC.fromBufferAttribute(uv, c);
+
+      intersection.uv = Triangle.getUV(_intersectionPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2());
+    }
+
+    if (uv2) {
+      _uvA.fromBufferAttribute(uv2, a);
+
+      _uvB.fromBufferAttribute(uv2, b);
+
+      _uvC.fromBufferAttribute(uv2, c);
+
+      intersection.uv2 = Triangle.getUV(_intersectionPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2());
+    }
+
+    const face = {
+      a: a,
+      b: b,
+      c: c,
+      normal: new Vector3(),
+      materialIndex: 0
+    };
+    Triangle.getNormal(_vA, _vB, _vC, face.normal);
+    intersection.face = face;
+  }
+
+  return intersection;
+}
+
+class BoxGeometry extends BufferGeometry {
+  constructor(width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1) {
+    super();
+    this.type = 'BoxGeometry';
+    this.parameters = {
+      width: width,
+      height: height,
+      depth: depth,
+      widthSegments: widthSegments,
+      heightSegments: heightSegments,
+      depthSegments: depthSegments
+    };
+    const scope = this; // segments
+
+    widthSegments = Math.floor(widthSegments);
+    heightSegments = Math.floor(heightSegments);
+    depthSegments = Math.floor(depthSegments); // buffers
+
+    const indices = [];
+    const vertices = [];
+    const normals = [];
+    const uvs = []; // helper variables
+
+    let numberOfVertices = 0;
+    let groupStart = 0; // build each side of the box geometry
+
+    buildPlane('z', 'y', 'x', -1, -1, depth, height, width, depthSegments, heightSegments, 0); // px
+
+    buildPlane('z', 'y', 'x', 1, -1, depth, height, -width, depthSegments, heightSegments, 1); // nx
+
+    buildPlane('x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2); // py
+
+    buildPlane('x', 'z', 'y', 1, -1, width, depth, -height, widthSegments, depthSegments, 3); // ny
+
+    buildPlane('x', 'y', 'z', 1, -1, width, height, depth, widthSegments, heightSegments, 4); // pz
+
+    buildPlane('x', 'y', 'z', -1, -1, width, height, -depth, widthSegments, heightSegments, 5); // nz
+    // build geometry
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
+
+    function buildPlane(u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex) {
+      const segmentWidth = width / gridX;
+      const segmentHeight = height / gridY;
+      const widthHalf = width / 2;
+      const heightHalf = height / 2;
+      const depthHalf = depth / 2;
+      const gridX1 = gridX + 1;
+      const gridY1 = gridY + 1;
+      let vertexCounter = 0;
+      let groupCount = 0;
+      const vector = new Vector3(); // generate vertices, normals and uvs
+
+      for (let iy = 0; iy < gridY1; iy++) {
+        const y = iy * segmentHeight - heightHalf;
+
+        for (let ix = 0; ix < gridX1; ix++) {
+          const x = ix * segmentWidth - widthHalf; // set values to correct vector component
+
+          vector[u] = x * udir;
+          vector[v] = y * vdir;
+          vector[w] = depthHalf; // now apply vector to vertex buffer
+
+          vertices.push(vector.x, vector.y, vector.z); // set values to correct vector component
+
+          vector[u] = 0;
+          vector[v] = 0;
+          vector[w] = depth > 0 ? 1 : -1; // now apply vector to normal buffer
+
+          normals.push(vector.x, vector.y, vector.z); // uvs
+
+          uvs.push(ix / gridX);
+          uvs.push(1 - iy / gridY); // counters
+
+          vertexCounter += 1;
+        }
+      } // indices
+      // 1. you need three indices to draw a single face
+      // 2. a single segment consists of two faces
+      // 3. so we need to generate six (2*3) indices per segment
+
+
+      for (let iy = 0; iy < gridY; iy++) {
+        for (let ix = 0; ix < gridX; ix++) {
+          const a = numberOfVertices + ix + gridX1 * iy;
+          const b = numberOfVertices + ix + gridX1 * (iy + 1);
+          const c = numberOfVertices + (ix + 1) + gridX1 * (iy + 1);
+          const d = numberOfVertices + (ix + 1) + gridX1 * iy; // faces
+
+          indices.push(a, b, d);
+          indices.push(b, c, d); // increase counter
+
+          groupCount += 6;
+        }
+      } // add a group to the geometry. this will ensure multi material support
+
+
+      scope.addGroup(groupStart, groupCount, materialIndex); // calculate new start value for groups
+
+      groupStart += groupCount; // update total number of vertices
+
+      numberOfVertices += vertexCounter;
+    }
+  }
+
+}
+/**
+ * Uniform Utilities
+ */
+
+
+exports.BoxGeometry = exports.BoxBufferGeometry = BoxGeometry;
+
+function cloneUniforms(src) {
+  const dst = {};
+
+  for (const u in src) {
+    dst[u] = {};
+
+    for (const p in src[u]) {
+      const property = src[u][p];
+
+      if (property && (property.isColor || property.isMatrix3 || property.isMatrix4 || property.isVector2 || property.isVector3 || property.isVector4 || property.isTexture || property.isQuaternion)) {
+        dst[u][p] = property.clone();
+      } else if (Array.isArray(property)) {
+        dst[u][p] = property.slice();
+      } else {
+        dst[u][p] = property;
+      }
+    }
+  }
+
+  return dst;
+}
+
+function mergeUniforms(uniforms) {
+  const merged = {};
+
+  for (let u = 0; u < uniforms.length; u++) {
+    const tmp = cloneUniforms(uniforms[u]);
+
+    for (const p in tmp) {
+      merged[p] = tmp[p];
+    }
+  }
+
+  return merged;
+} // Legacy
+
+
+const UniformsUtils = {
+  clone: cloneUniforms,
+  merge: mergeUniforms
+};
+exports.UniformsUtils = UniformsUtils;
+var default_vertex = "void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";
+var default_fragment = "void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";
+/**
+ * parameters = {
+ *  defines: { "label" : "value" },
+ *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
+ *
+ *  fragmentShader: <string>,
+ *  vertexShader: <string>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  lights: <bool>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>
+ * }
+ */
+
+function ShaderMaterial(parameters) {
+  Material.call(this);
+  this.type = 'ShaderMaterial';
+  this.defines = {};
+  this.uniforms = {};
+  this.vertexShader = default_vertex;
+  this.fragmentShader = default_fragment;
+  this.linewidth = 1;
+  this.wireframe = false;
+  this.wireframeLinewidth = 1;
+  this.fog = false; // set to use scene fog
+
+  this.lights = false; // set to use scene lights
+
+  this.clipping = false; // set to use user-defined clipping planes
+
+  this.skinning = false; // set to use skinning attribute streams
+
+  this.morphTargets = false; // set to use morph targets
+
+  this.morphNormals = false; // set to use morph normals
+
+  this.extensions = {
+    derivatives: false,
+    // set to use derivatives
+    fragDepth: false,
+    // set to use fragment depth values
+    drawBuffers: false,
+    // set to use draw buffers
+    shaderTextureLOD: false // set to use shader texture LOD
+
+  }; // When rendered geometry doesn't include these attributes but the material does,
+  // use these default values in WebGL. This avoids errors when buffer data is missing.
+
+  this.defaultAttributeValues = {
+    'color': [1, 1, 1],
+    'uv': [0, 0],
+    'uv2': [0, 0]
+  };
+  this.index0AttributeName = undefined;
+  this.uniformsNeedUpdate = false;
+  this.glslVersion = null;
+
+  if (parameters !== undefined) {
+    if (parameters.attributes !== undefined) {
+      console.error('THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.');
+    }
+
+    this.setValues(parameters);
+  }
+}
+
+ShaderMaterial.prototype = Object.create(Material.prototype);
+ShaderMaterial.prototype.constructor = ShaderMaterial;
+ShaderMaterial.prototype.isShaderMaterial = true;
+
+ShaderMaterial.prototype.copy = function (source) {
+  Material.prototype.copy.call(this, source);
+  this.fragmentShader = source.fragmentShader;
+  this.vertexShader = source.vertexShader;
+  this.uniforms = cloneUniforms(source.uniforms);
+  this.defines = Object.assign({}, source.defines);
+  this.wireframe = source.wireframe;
+  this.wireframeLinewidth = source.wireframeLinewidth;
+  this.lights = source.lights;
+  this.clipping = source.clipping;
+  this.skinning = source.skinning;
+  this.morphTargets = source.morphTargets;
+  this.morphNormals = source.morphNormals;
+  this.extensions = Object.assign({}, source.extensions);
+  this.glslVersion = source.glslVersion;
+  return this;
+};
+
+ShaderMaterial.prototype.toJSON = function (meta) {
+  const data = Material.prototype.toJSON.call(this, meta);
+  data.glslVersion = this.glslVersion;
+  data.uniforms = {};
+
+  for (const name in this.uniforms) {
+    const uniform = this.uniforms[name];
+    const value = uniform.value;
+
+    if (value && value.isTexture) {
+      data.uniforms[name] = {
+        type: 't',
+        value: value.toJSON(meta).uuid
+      };
+    } else if (value && value.isColor) {
+      data.uniforms[name] = {
+        type: 'c',
+        value: value.getHex()
+      };
+    } else if (value && value.isVector2) {
+      data.uniforms[name] = {
+        type: 'v2',
+        value: value.toArray()
+      };
+    } else if (value && value.isVector3) {
+      data.uniforms[name] = {
+        type: 'v3',
+        value: value.toArray()
+      };
+    } else if (value && value.isVector4) {
+      data.uniforms[name] = {
+        type: 'v4',
+        value: value.toArray()
+      };
+    } else if (value && value.isMatrix3) {
+      data.uniforms[name] = {
+        type: 'm3',
+        value: value.toArray()
+      };
+    } else if (value && value.isMatrix4) {
+      data.uniforms[name] = {
+        type: 'm4',
+        value: value.toArray()
+      };
+    } else {
+      data.uniforms[name] = {
+        value: value
+      }; // note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far
+    }
+  }
+
+  if (Object.keys(this.defines).length > 0) data.defines = this.defines;
+  data.vertexShader = this.vertexShader;
+  data.fragmentShader = this.fragmentShader;
+  const extensions = {};
+
+  for (const key in this.extensions) {
+    if (this.extensions[key] === true) extensions[key] = true;
+  }
+
+  if (Object.keys(extensions).length > 0) data.extensions = extensions;
+  return data;
+};
+
+function Camera() {
+  Object3D.call(this);
+  this.type = 'Camera';
+  this.matrixWorldInverse = new Matrix4();
+  this.projectionMatrix = new Matrix4();
+  this.projectionMatrixInverse = new Matrix4();
+}
+
+Camera.prototype = Object.assign(Object.create(Object3D.prototype), {
+  constructor: Camera,
+  isCamera: true,
+  copy: function (source, recursive) {
+    Object3D.prototype.copy.call(this, source, recursive);
+    this.matrixWorldInverse.copy(source.matrixWorldInverse);
+    this.projectionMatrix.copy(source.projectionMatrix);
+    this.projectionMatrixInverse.copy(source.projectionMatrixInverse);
+    return this;
+  },
+  getWorldDirection: function (target) {
+    if (target === undefined) {
+      console.warn('THREE.Camera: .getWorldDirection() target is now required');
+      target = new Vector3();
+    }
+
+    this.updateWorldMatrix(true, false);
+    const e = this.matrixWorld.elements;
+    return target.set(-e[8], -e[9], -e[10]).normalize();
+  },
+  updateMatrixWorld: function (force) {
+    Object3D.prototype.updateMatrixWorld.call(this, force);
+    this.matrixWorldInverse.copy(this.matrixWorld).invert();
+  },
+  updateWorldMatrix: function (updateParents, updateChildren) {
+    Object3D.prototype.updateWorldMatrix.call(this, updateParents, updateChildren);
+    this.matrixWorldInverse.copy(this.matrixWorld).invert();
+  },
+  clone: function () {
+    return new this.constructor().copy(this);
+  }
+});
+
+function PerspectiveCamera(fov = 50, aspect = 1, near = 0.1, far = 2000) {
+  Camera.call(this);
+  this.type = 'PerspectiveCamera';
+  this.fov = fov;
+  this.zoom = 1;
+  this.near = near;
+  this.far = far;
+  this.focus = 10;
+  this.aspect = aspect;
+  this.view = null;
+  this.filmGauge = 35; // width of the film (default in millimeters)
+
+  this.filmOffset = 0; // horizontal film offset (same unit as gauge)
+
+  this.updateProjectionMatrix();
+}
+
+PerspectiveCamera.prototype = Object.assign(Object.create(Camera.prototype), {
+  constructor: PerspectiveCamera,
+  isPerspectiveCamera: true,
+  copy: function (source, recursive) {
+    Camera.prototype.copy.call(this, source, recursive);
+    this.fov = source.fov;
+    this.zoom = source.zoom;
+    this.near = source.near;
+    this.far = source.far;
+    this.focus = source.focus;
+    this.aspect = source.aspect;
+    this.view = source.view === null ? null : Object.assign({}, source.view);
+    this.filmGauge = source.filmGauge;
+    this.filmOffset = source.filmOffset;
+    return this;
+  },
+
+  /**
+   * Sets the FOV by focal length in respect to the current .filmGauge.
+   *
+   * The default film gauge is 35, so that the focal length can be specified for
+   * a 35mm (full frame) camera.
+   *
+   * Values for focal length and film gauge must have the same unit.
+   */
+  setFocalLength: function (focalLength) {
+    /** see {@link http://www.bobatkins.com/photography/technical/field_of_view.html} */
+    const vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;
+    this.fov = MathUtils.RAD2DEG * 2 * Math.atan(vExtentSlope);
+    this.updateProjectionMatrix();
+  },
+
+  /**
+   * Calculates the focal length from the current .fov and .filmGauge.
+   */
+  getFocalLength: function () {
+    const vExtentSlope = Math.tan(MathUtils.DEG2RAD * 0.5 * this.fov);
+    return 0.5 * this.getFilmHeight() / vExtentSlope;
+  },
+  getEffectiveFOV: function () {
+    return MathUtils.RAD2DEG * 2 * Math.atan(Math.tan(MathUtils.DEG2RAD * 0.5 * this.fov) / this.zoom);
+  },
+  getFilmWidth: function () {
+    // film not completely covered in portrait format (aspect < 1)
+    return this.filmGauge * Math.min(this.aspect, 1);
+  },
+  getFilmHeight: function () {
+    // film not completely covered in landscape format (aspect > 1)
+    return this.filmGauge / Math.max(this.aspect, 1);
+  },
+
+  /**
+   * Sets an offset in a larger frustum. This is useful for multi-window or
+   * multi-monitor/multi-machine setups.
+   *
+   * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
+   * the monitors are in grid like this
+   *
+   *   +---+---+---+
+   *   | A | B | C |
+   *   +---+---+---+
+   *   | D | E | F |
+   *   +---+---+---+
+   *
+   * then for each monitor you would call it like this
+   *
+   *   const w = 1920;
+   *   const h = 1080;
+   *   const fullWidth = w * 3;
+   *   const fullHeight = h * 2;
+   *
+   *   --A--
+   *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
+   *   --B--
+   *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
+   *   --C--
+   *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
+   *   --D--
+   *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
+   *   --E--
+   *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
+   *   --F--
+   *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
+   *
+   *   Note there is no reason monitors have to be the same size or in a grid.
+   */
+  setViewOffset: function (fullWidth, fullHeight, x, y, width, height) {
+    this.aspect = fullWidth / fullHeight;
+
+    if (this.view === null) {
+      this.view = {
+        enabled: true,
+        fullWidth: 1,
+        fullHeight: 1,
+        offsetX: 0,
+        offsetY: 0,
+        width: 1,
+        height: 1
+      };
+    }
+
+    this.view.enabled = true;
+    this.view.fullWidth = fullWidth;
+    this.view.fullHeight = fullHeight;
+    this.view.offsetX = x;
+    this.view.offsetY = y;
+    this.view.width = width;
+    this.view.height = height;
+    this.updateProjectionMatrix();
+  },
+  clearViewOffset: function () {
+    if (this.view !== null) {
+      this.view.enabled = false;
+    }
+
+    this.updateProjectionMatrix();
+  },
+  updateProjectionMatrix: function () {
+    const near = this.near;
+    let top = near * Math.tan(MathUtils.DEG2RAD * 0.5 * this.fov) / this.zoom;
+    let height = 2 * top;
+    let width = this.aspect * height;
+    let left = -0.5 * width;
+    const view = this.view;
+
+    if (this.view !== null && this.view.enabled) {
+      const fullWidth = view.fullWidth,
+            fullHeight = view.fullHeight;
+      left += view.offsetX * width / fullWidth;
+      top -= view.offsetY * height / fullHeight;
+      width *= view.width / fullWidth;
+      height *= view.height / fullHeight;
+    }
+
+    const skew = this.filmOffset;
+    if (skew !== 0) left += near * skew / this.getFilmWidth();
+    this.projectionMatrix.makePerspective(left, left + width, top, top - height, near, this.far);
+    this.projectionMatrixInverse.copy(this.projectionMatrix).invert();
+  },
+  toJSON: function (meta) {
+    const data = Object3D.prototype.toJSON.call(this, meta);
+    data.object.fov = this.fov;
+    data.object.zoom = this.zoom;
+    data.object.near = this.near;
+    data.object.far = this.far;
+    data.object.focus = this.focus;
+    data.object.aspect = this.aspect;
+    if (this.view !== null) data.object.view = Object.assign({}, this.view);
+    data.object.filmGauge = this.filmGauge;
+    data.object.filmOffset = this.filmOffset;
+    return data;
+  }
+});
+const fov = 90,
+      aspect = 1;
+
+class CubeCamera extends Object3D {
+  constructor(near, far, renderTarget) {
+    super();
+    this.type = 'CubeCamera';
+
+    if (renderTarget.isWebGLCubeRenderTarget !== true) {
+      console.error('THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.');
+      return;
+    }
+
+    this.renderTarget = renderTarget;
+    const cameraPX = new PerspectiveCamera(fov, aspect, near, far);
+    cameraPX.layers = this.layers;
+    cameraPX.up.set(0, -1, 0);
+    cameraPX.lookAt(new Vector3(1, 0, 0));
+    this.add(cameraPX);
+    const cameraNX = new PerspectiveCamera(fov, aspect, near, far);
+    cameraNX.layers = this.layers;
+    cameraNX.up.set(0, -1, 0);
+    cameraNX.lookAt(new Vector3(-1, 0, 0));
+    this.add(cameraNX);
+    const cameraPY = new PerspectiveCamera(fov, aspect, near, far);
+    cameraPY.layers = this.layers;
+    cameraPY.up.set(0, 0, 1);
+    cameraPY.lookAt(new Vector3(0, 1, 0));
+    this.add(cameraPY);
+    const cameraNY = new PerspectiveCamera(fov, aspect, near, far);
+    cameraNY.layers = this.layers;
+    cameraNY.up.set(0, 0, -1);
+    cameraNY.lookAt(new Vector3(0, -1, 0));
+    this.add(cameraNY);
+    const cameraPZ = new PerspectiveCamera(fov, aspect, near, far);
+    cameraPZ.layers = this.layers;
+    cameraPZ.up.set(0, -1, 0);
+    cameraPZ.lookAt(new Vector3(0, 0, 1));
+    this.add(cameraPZ);
+    const cameraNZ = new PerspectiveCamera(fov, aspect, near, far);
+    cameraNZ.layers = this.layers;
+    cameraNZ.up.set(0, -1, 0);
+    cameraNZ.lookAt(new Vector3(0, 0, -1));
+    this.add(cameraNZ);
+  }
+
+  update(renderer, scene) {
+    if (this.parent === null) this.updateMatrixWorld();
+    const renderTarget = this.renderTarget;
+    const [cameraPX, cameraNX, cameraPY, cameraNY, cameraPZ, cameraNZ] = this.children;
+    const currentXrEnabled = renderer.xr.enabled;
+    const currentRenderTarget = renderer.getRenderTarget();
+    renderer.xr.enabled = false;
+    const generateMipmaps = renderTarget.texture.generateMipmaps;
+    renderTarget.texture.generateMipmaps = false;
+    renderer.setRenderTarget(renderTarget, 0);
+    renderer.render(scene, cameraPX);
+    renderer.setRenderTarget(renderTarget, 1);
+    renderer.render(scene, cameraNX);
+    renderer.setRenderTarget(renderTarget, 2);
+    renderer.render(scene, cameraPY);
+    renderer.setRenderTarget(renderTarget, 3);
+    renderer.render(scene, cameraNY);
+    renderer.setRenderTarget(renderTarget, 4);
+    renderer.render(scene, cameraPZ);
+    renderTarget.texture.generateMipmaps = generateMipmaps;
+    renderer.setRenderTarget(renderTarget, 5);
+    renderer.render(scene, cameraNZ);
+    renderer.setRenderTarget(currentRenderTarget);
+    renderer.xr.enabled = currentXrEnabled;
+  }
+
+}
+
+exports.CubeCamera = CubeCamera;
+
+class CubeTexture extends Texture {
+  constructor(images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding) {
+    images = images !== undefined ? images : [];
+    mapping = mapping !== undefined ? mapping : CubeReflectionMapping;
+    format = format !== undefined ? format : RGBFormat;
+    super(images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding); // Why CubeTexture._needsFlipEnvMap is necessary:
+    //
+    // By convention -- likely based on the RenderMan spec from the 1990's -- cube maps are specified by WebGL (and three.js)
+    // in a coordinate system in which positive-x is to the right when looking up the positive-z axis -- in other words,
+    // in a left-handed coordinate system. By continuing this convention, preexisting cube maps continued to render correctly.
+    // three.js uses a right-handed coordinate system. So environment maps used in three.js appear to have px and nx swapped
+    // and the flag _needsFlipEnvMap controls this conversion. The flip is not required (and thus _needsFlipEnvMap is set to false)
+    // when using WebGLCubeRenderTarget.texture as a cube texture.
+
+    this._needsFlipEnvMap = true;
+    this.flipY = false;
+  }
+
+  get images() {
+    return this.image;
+  }
+
+  set images(value) {
+    this.image = value;
+  }
+
+}
+
+exports.CubeTexture = CubeTexture;
+CubeTexture.prototype.isCubeTexture = true;
+
+class WebGLCubeRenderTarget extends WebGLRenderTarget {
+  constructor(size, options, dummy) {
+    if (Number.isInteger(options)) {
+      console.warn('THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )');
+      options = dummy;
+    }
+
+    super(size, size, options);
+    options = options || {};
+    this.texture = new CubeTexture(undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding);
+    this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
+    this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;
+    this.texture._needsFlipEnvMap = false;
+  }
+
+  fromEquirectangularTexture(renderer, texture) {
+    this.texture.type = texture.type;
+    this.texture.format = RGBAFormat; // see #18859
+
+    this.texture.encoding = texture.encoding;
+    this.texture.generateMipmaps = texture.generateMipmaps;
+    this.texture.minFilter = texture.minFilter;
+    this.texture.magFilter = texture.magFilter;
+    const shader = {
+      uniforms: {
+        tEquirect: {
+          value: null
+        }
+      },
+      vertexShader:
+      /* glsl */
+      `
+
+				varying vec3 vWorldDirection;
+
+				vec3 transformDirection( in vec3 dir, in mat4 matrix ) {
+
+					return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );
+
+				}
+
+				void main() {
+
+					vWorldDirection = transformDirection( position, modelMatrix );
+
+					#include <begin_vertex>
+					#include <project_vertex>
+
+				}
+			`,
+      fragmentShader:
+      /* glsl */
+      `
+
+				uniform sampler2D tEquirect;
+
+				varying vec3 vWorldDirection;
+
+				#include <common>
+
+				void main() {
+
+					vec3 direction = normalize( vWorldDirection );
+
+					vec2 sampleUV = equirectUv( direction );
+
+					gl_FragColor = texture2D( tEquirect, sampleUV );
+
+				}
+			`
+    };
+    const geometry = new BoxGeometry(5, 5, 5);
+    const material = new ShaderMaterial({
+      name: 'CubemapFromEquirect',
+      uniforms: cloneUniforms(shader.uniforms),
+      vertexShader: shader.vertexShader,
+      fragmentShader: shader.fragmentShader,
+      side: BackSide,
+      blending: NoBlending
+    });
+    material.uniforms.tEquirect.value = texture;
+    const mesh = new Mesh(geometry, material);
+    const currentMinFilter = texture.minFilter; // Avoid blurred poles
+
+    if (texture.minFilter === LinearMipmapLinearFilter) texture.minFilter = LinearFilter;
+    const camera = new CubeCamera(1, 10, this);
+    camera.update(renderer, mesh);
+    texture.minFilter = currentMinFilter;
+    mesh.geometry.dispose();
+    mesh.material.dispose();
+    return this;
+  }
+
+  clear(renderer, color, depth, stencil) {
+    const currentRenderTarget = renderer.getRenderTarget();
+
+    for (let i = 0; i < 6; i++) {
+      renderer.setRenderTarget(this, i);
+      renderer.clear(color, depth, stencil);
+    }
+
+    renderer.setRenderTarget(currentRenderTarget);
+  }
+
+}
+
+exports.WebGLCubeRenderTarget = WebGLCubeRenderTarget;
+WebGLCubeRenderTarget.prototype.isWebGLCubeRenderTarget = true;
+
+class DataTexture extends Texture {
+  constructor(data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding) {
+    super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding);
+    this.image = {
+      data: data || null,
+      width: width || 1,
+      height: height || 1
+    };
+    this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
+    this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
+    this.generateMipmaps = false;
+    this.flipY = false;
+    this.unpackAlignment = 1;
+    this.needsUpdate = true;
+  }
+
+}
+
+exports.DataTexture = DataTexture;
+DataTexture.prototype.isDataTexture = true;
+
+const _sphere$1 =
+/*@__PURE__*/
+new Sphere();
+
+const _vector$5 =
+/*@__PURE__*/
+new Vector3();
+
+class Frustum {
+  constructor(p0 = new Plane(), p1 = new Plane(), p2 = new Plane(), p3 = new Plane(), p4 = new Plane(), p5 = new Plane()) {
+    this.planes = [p0, p1, p2, p3, p4, p5];
+  }
+
+  set(p0, p1, p2, p3, p4, p5) {
+    const planes = this.planes;
+    planes[0].copy(p0);
+    planes[1].copy(p1);
+    planes[2].copy(p2);
+    planes[3].copy(p3);
+    planes[4].copy(p4);
+    planes[5].copy(p5);
+    return this;
+  }
+
+  copy(frustum) {
+    const planes = this.planes;
+
+    for (let i = 0; i < 6; i++) {
+      planes[i].copy(frustum.planes[i]);
+    }
+
+    return this;
+  }
+
+  setFromProjectionMatrix(m) {
+    const planes = this.planes;
+    const me = m.elements;
+    const me0 = me[0],
+          me1 = me[1],
+          me2 = me[2],
+          me3 = me[3];
+    const me4 = me[4],
+          me5 = me[5],
+          me6 = me[6],
+          me7 = me[7];
+    const me8 = me[8],
+          me9 = me[9],
+          me10 = me[10],
+          me11 = me[11];
+    const me12 = me[12],
+          me13 = me[13],
+          me14 = me[14],
+          me15 = me[15];
+    planes[0].setComponents(me3 - me0, me7 - me4, me11 - me8, me15 - me12).normalize();
+    planes[1].setComponents(me3 + me0, me7 + me4, me11 + me8, me15 + me12).normalize();
+    planes[2].setComponents(me3 + me1, me7 + me5, me11 + me9, me15 + me13).normalize();
+    planes[3].setComponents(me3 - me1, me7 - me5, me11 - me9, me15 - me13).normalize();
+    planes[4].setComponents(me3 - me2, me7 - me6, me11 - me10, me15 - me14).normalize();
+    planes[5].setComponents(me3 + me2, me7 + me6, me11 + me10, me15 + me14).normalize();
+    return this;
+  }
+
+  intersectsObject(object) {
+    const geometry = object.geometry;
+    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
+
+    _sphere$1.copy(geometry.boundingSphere).applyMatrix4(object.matrixWorld);
+
+    return this.intersectsSphere(_sphere$1);
+  }
+
+  intersectsSprite(sprite) {
+    _sphere$1.center.set(0, 0, 0);
+
+    _sphere$1.radius = 0.7071067811865476;
+
+    _sphere$1.applyMatrix4(sprite.matrixWorld);
+
+    return this.intersectsSphere(_sphere$1);
+  }
+
+  intersectsSphere(sphere) {
+    const planes = this.planes;
+    const center = sphere.center;
+    const negRadius = -sphere.radius;
+
+    for (let i = 0; i < 6; i++) {
+      const distance = planes[i].distanceToPoint(center);
+
+      if (distance < negRadius) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  intersectsBox(box) {
+    const planes = this.planes;
+
+    for (let i = 0; i < 6; i++) {
+      const plane = planes[i]; // corner at max distance
+
+      _vector$5.x = plane.normal.x > 0 ? box.max.x : box.min.x;
+      _vector$5.y = plane.normal.y > 0 ? box.max.y : box.min.y;
+      _vector$5.z = plane.normal.z > 0 ? box.max.z : box.min.z;
+
+      if (plane.distanceToPoint(_vector$5) < 0) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  containsPoint(point) {
+    const planes = this.planes;
+
+    for (let i = 0; i < 6; i++) {
+      if (planes[i].distanceToPoint(point) < 0) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+}
+
+exports.Frustum = Frustum;
+
+function WebGLAnimation() {
+  let context = null;
+  let isAnimating = false;
+  let animationLoop = null;
+  let requestId = null;
+
+  function onAnimationFrame(time, frame) {
+    animationLoop(time, frame);
+    requestId = context.requestAnimationFrame(onAnimationFrame);
+  }
+
+  return {
+    start: function () {
+      if (isAnimating === true) return;
+      if (animationLoop === null) return;
+      requestId = context.requestAnimationFrame(onAnimationFrame);
+      isAnimating = true;
+    },
+    stop: function () {
+      context.cancelAnimationFrame(requestId);
+      isAnimating = false;
+    },
+    setAnimationLoop: function (callback) {
+      animationLoop = callback;
+    },
+    setContext: function (value) {
+      context = value;
+    }
+  };
+}
+
+function WebGLAttributes(gl, capabilities) {
+  const isWebGL2 = capabilities.isWebGL2;
+  const buffers = new WeakMap();
+
+  function createBuffer(attribute, bufferType) {
+    const array = attribute.array;
+    const usage = attribute.usage;
+    const buffer = gl.createBuffer();
+    gl.bindBuffer(bufferType, buffer);
+    gl.bufferData(bufferType, array, usage);
+    attribute.onUploadCallback();
+    let type = 5126;
+
+    if (array instanceof Float32Array) {
+      type = 5126;
+    } else if (array instanceof Float64Array) {
+      console.warn('THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.');
+    } else if (array instanceof Uint16Array) {
+      if (attribute.isFloat16BufferAttribute) {
+        if (isWebGL2) {
+          type = 5131;
+        } else {
+          console.warn('THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2.');
+        }
+      } else {
+        type = 5123;
+      }
+    } else if (array instanceof Int16Array) {
+      type = 5122;
+    } else if (array instanceof Uint32Array) {
+      type = 5125;
+    } else if (array instanceof Int32Array) {
+      type = 5124;
+    } else if (array instanceof Int8Array) {
+      type = 5120;
+    } else if (array instanceof Uint8Array) {
+      type = 5121;
+    }
+
+    return {
+      buffer: buffer,
+      type: type,
+      bytesPerElement: array.BYTES_PER_ELEMENT,
+      version: attribute.version
+    };
+  }
+
+  function updateBuffer(buffer, attribute, bufferType) {
+    const array = attribute.array;
+    const updateRange = attribute.updateRange;
+    gl.bindBuffer(bufferType, buffer);
+
+    if (updateRange.count === -1) {
+      // Not using update ranges
+      gl.bufferSubData(bufferType, 0, array);
+    } else {
+      if (isWebGL2) {
+        gl.bufferSubData(bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, array, updateRange.offset, updateRange.count);
+      } else {
+        gl.bufferSubData(bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, array.subarray(updateRange.offset, updateRange.offset + updateRange.count));
+      }
+
+      updateRange.count = -1; // reset range
+    }
+  } //
+
+
+  function get(attribute) {
+    if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
+    return buffers.get(attribute);
+  }
+
+  function remove(attribute) {
+    if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
+    const data = buffers.get(attribute);
+
+    if (data) {
+      gl.deleteBuffer(data.buffer);
+      buffers.delete(attribute);
+    }
+  }
+
+  function update(attribute, bufferType) {
+    if (attribute.isGLBufferAttribute) {
+      const cached = buffers.get(attribute);
+
+      if (!cached || cached.version < attribute.version) {
+        buffers.set(attribute, {
+          buffer: attribute.buffer,
+          type: attribute.type,
+          bytesPerElement: attribute.elementSize,
+          version: attribute.version
+        });
+      }
+
+      return;
+    }
+
+    if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
+    const data = buffers.get(attribute);
+
+    if (data === undefined) {
+      buffers.set(attribute, createBuffer(attribute, bufferType));
+    } else if (data.version < attribute.version) {
+      updateBuffer(data.buffer, attribute, bufferType);
+      data.version = attribute.version;
+    }
+  }
+
+  return {
+    get: get,
+    remove: remove,
+    update: update
+  };
+}
+
+class PlaneGeometry extends BufferGeometry {
+  constructor(width = 1, height = 1, widthSegments = 1, heightSegments = 1) {
+    super();
+    this.type = 'PlaneGeometry';
+    this.parameters = {
+      width: width,
+      height: height,
+      widthSegments: widthSegments,
+      heightSegments: heightSegments
+    };
+    const width_half = width / 2;
+    const height_half = height / 2;
+    const gridX = Math.floor(widthSegments);
+    const gridY = Math.floor(heightSegments);
+    const gridX1 = gridX + 1;
+    const gridY1 = gridY + 1;
+    const segment_width = width / gridX;
+    const segment_height = height / gridY; //
+
+    const indices = [];
+    const vertices = [];
+    const normals = [];
+    const uvs = [];
+
+    for (let iy = 0; iy < gridY1; iy++) {
+      const y = iy * segment_height - height_half;
+
+      for (let ix = 0; ix < gridX1; ix++) {
+        const x = ix * segment_width - width_half;
+        vertices.push(x, -y, 0);
+        normals.push(0, 0, 1);
+        uvs.push(ix / gridX);
+        uvs.push(1 - iy / gridY);
+      }
+    }
+
+    for (let iy = 0; iy < gridY; iy++) {
+      for (let ix = 0; ix < gridX; ix++) {
+        const a = ix + gridX1 * iy;
+        const b = ix + gridX1 * (iy + 1);
+        const c = ix + 1 + gridX1 * (iy + 1);
+        const d = ix + 1 + gridX1 * iy;
+        indices.push(a, b, d);
+        indices.push(b, c, d);
+      }
+    }
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
+  }
+
+}
+
+exports.PlaneGeometry = exports.PlaneBufferGeometry = PlaneGeometry;
+var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif";
+var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";
+var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif";
+var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif";
+var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";
+var begin_vertex = "vec3 transformed = vec3( position );";
+var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif";
+var bsdfs = "vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif";
+var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif";
+var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif";
+var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif";
+var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif";
+var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif";
+var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif";
+var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";
+var color_pars_vertex = "#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif";
+var color_vertex = "#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif";
+var common = "#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}";
+var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif";
+var defaultnormal_vertex = "vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif";
+var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif";
+var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif";
+var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif";
+var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif";
+var encodings_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );";
+var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}";
+var envmap_fragment = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif";
+var envmap_common_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif";
+var envmap_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif";
+var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif";
+var envmap_vertex = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif";
+var fog_vertex = "#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif";
+var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif";
+var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif";
+var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif";
+var gradientmap_pars_fragment = "#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}";
+var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif";
+var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";
+var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif";
+var lights_pars_begin = "uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif";
+var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif";
+var lights_toon_fragment = "ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;";
+var lights_toon_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)";
+var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;";
+var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)";
+var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif";
+var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}";
+var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif";
+var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif";
+var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif";
+var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";
+var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif";
+var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif";
+var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif";
+var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif";
+var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif";
+var map_particle_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif";
+var map_particle_pars_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";
+var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif";
+var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";
+var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif";
+var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif";
+var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif";
+var normal_fragment_begin = "float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;";
+var normal_fragment_maps = "#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif";
+var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif";
+var clearcoat_normal_fragment_begin = "#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif";
+var clearcoat_normal_fragment_maps = "#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif";
+var clearcoat_pars_fragment = "#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif";
+var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}";
+var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif";
+var project_vertex = "vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;";
+var dithering_fragment = "#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif";
+var dithering_pars_fragment = "#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif";
+var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif";
+var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";
+var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif";
+var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif";
+var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif";
+var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}";
+var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";
+var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif";
+var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif";
+var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif";
+var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";
+var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";
+var tonemapping_fragment = "#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif";
+var tonemapping_pars_fragment = "#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }";
+var transmissionmap_fragment = "#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif";
+var transmissionmap_pars_fragment = "#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif";
+var uv_pars_fragment = "#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif";
+var uv_pars_vertex = "#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif";
+var uv_vertex = "#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";
+var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";
+var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif";
+var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif";
+var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif";
+var background_frag = "uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
+var background_vert = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}";
+var cube_frag = "#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
+var cube_vert = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}";
+var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}";
+var depth_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}";
+var distanceRGBA_frag = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}";
+var distanceRGBA_vert = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}";
+var equirect_frag = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
+var equirect_vert = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}";
+var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";
+var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
+var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+var meshbasic_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}";
+var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
+var meshmatcap_frag = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+var meshmatcap_vert = "#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}";
+var meshtoon_frag = "#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+var meshtoon_vert = "#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
+var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
+var meshphysical_frag = "#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+var meshphysical_vert = "#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
+var normal_frag = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}";
+var normal_vert = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}";
+var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";
+var points_vert = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}";
+var shadow_frag = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
+var shadow_vert = "#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
+var sprite_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
+var sprite_vert = "uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
+const ShaderChunk = {
+  alphamap_fragment: alphamap_fragment,
+  alphamap_pars_fragment: alphamap_pars_fragment,
+  alphatest_fragment: alphatest_fragment,
+  aomap_fragment: aomap_fragment,
+  aomap_pars_fragment: aomap_pars_fragment,
+  begin_vertex: begin_vertex,
+  beginnormal_vertex: beginnormal_vertex,
+  bsdfs: bsdfs,
+  bumpmap_pars_fragment: bumpmap_pars_fragment,
+  clipping_planes_fragment: clipping_planes_fragment,
+  clipping_planes_pars_fragment: clipping_planes_pars_fragment,
+  clipping_planes_pars_vertex: clipping_planes_pars_vertex,
+  clipping_planes_vertex: clipping_planes_vertex,
+  color_fragment: color_fragment,
+  color_pars_fragment: color_pars_fragment,
+  color_pars_vertex: color_pars_vertex,
+  color_vertex: color_vertex,
+  common: common,
+  cube_uv_reflection_fragment: cube_uv_reflection_fragment,
+  defaultnormal_vertex: defaultnormal_vertex,
+  displacementmap_pars_vertex: displacementmap_pars_vertex,
+  displacementmap_vertex: displacementmap_vertex,
+  emissivemap_fragment: emissivemap_fragment,
+  emissivemap_pars_fragment: emissivemap_pars_fragment,
+  encodings_fragment: encodings_fragment,
+  encodings_pars_fragment: encodings_pars_fragment,
+  envmap_fragment: envmap_fragment,
+  envmap_common_pars_fragment: envmap_common_pars_fragment,
+  envmap_pars_fragment: envmap_pars_fragment,
+  envmap_pars_vertex: envmap_pars_vertex,
+  envmap_physical_pars_fragment: envmap_physical_pars_fragment,
+  envmap_vertex: envmap_vertex,
+  fog_vertex: fog_vertex,
+  fog_pars_vertex: fog_pars_vertex,
+  fog_fragment: fog_fragment,
+  fog_pars_fragment: fog_pars_fragment,
+  gradientmap_pars_fragment: gradientmap_pars_fragment,
+  lightmap_fragment: lightmap_fragment,
+  lightmap_pars_fragment: lightmap_pars_fragment,
+  lights_lambert_vertex: lights_lambert_vertex,
+  lights_pars_begin: lights_pars_begin,
+  lights_toon_fragment: lights_toon_fragment,
+  lights_toon_pars_fragment: lights_toon_pars_fragment,
+  lights_phong_fragment: lights_phong_fragment,
+  lights_phong_pars_fragment: lights_phong_pars_fragment,
+  lights_physical_fragment: lights_physical_fragment,
+  lights_physical_pars_fragment: lights_physical_pars_fragment,
+  lights_fragment_begin: lights_fragment_begin,
+  lights_fragment_maps: lights_fragment_maps,
+  lights_fragment_end: lights_fragment_end,
+  logdepthbuf_fragment: logdepthbuf_fragment,
+  logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
+  logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
+  logdepthbuf_vertex: logdepthbuf_vertex,
+  map_fragment: map_fragment,
+  map_pars_fragment: map_pars_fragment,
+  map_particle_fragment: map_particle_fragment,
+  map_particle_pars_fragment: map_particle_pars_fragment,
+  metalnessmap_fragment: metalnessmap_fragment,
+  metalnessmap_pars_fragment: metalnessmap_pars_fragment,
+  morphnormal_vertex: morphnormal_vertex,
+  morphtarget_pars_vertex: morphtarget_pars_vertex,
+  morphtarget_vertex: morphtarget_vertex,
+  normal_fragment_begin: normal_fragment_begin,
+  normal_fragment_maps: normal_fragment_maps,
+  normalmap_pars_fragment: normalmap_pars_fragment,
+  clearcoat_normal_fragment_begin: clearcoat_normal_fragment_begin,
+  clearcoat_normal_fragment_maps: clearcoat_normal_fragment_maps,
+  clearcoat_pars_fragment: clearcoat_pars_fragment,
+  packing: packing,
+  premultiplied_alpha_fragment: premultiplied_alpha_fragment,
+  project_vertex: project_vertex,
+  dithering_fragment: dithering_fragment,
+  dithering_pars_fragment: dithering_pars_fragment,
+  roughnessmap_fragment: roughnessmap_fragment,
+  roughnessmap_pars_fragment: roughnessmap_pars_fragment,
+  shadowmap_pars_fragment: shadowmap_pars_fragment,
+  shadowmap_pars_vertex: shadowmap_pars_vertex,
+  shadowmap_vertex: shadowmap_vertex,
+  shadowmask_pars_fragment: shadowmask_pars_fragment,
+  skinbase_vertex: skinbase_vertex,
+  skinning_pars_vertex: skinning_pars_vertex,
+  skinning_vertex: skinning_vertex,
+  skinnormal_vertex: skinnormal_vertex,
+  specularmap_fragment: specularmap_fragment,
+  specularmap_pars_fragment: specularmap_pars_fragment,
+  tonemapping_fragment: tonemapping_fragment,
+  tonemapping_pars_fragment: tonemapping_pars_fragment,
+  transmissionmap_fragment: transmissionmap_fragment,
+  transmissionmap_pars_fragment: transmissionmap_pars_fragment,
+  uv_pars_fragment: uv_pars_fragment,
+  uv_pars_vertex: uv_pars_vertex,
+  uv_vertex: uv_vertex,
+  uv2_pars_fragment: uv2_pars_fragment,
+  uv2_pars_vertex: uv2_pars_vertex,
+  uv2_vertex: uv2_vertex,
+  worldpos_vertex: worldpos_vertex,
+  background_frag: background_frag,
+  background_vert: background_vert,
+  cube_frag: cube_frag,
+  cube_vert: cube_vert,
+  depth_frag: depth_frag,
+  depth_vert: depth_vert,
+  distanceRGBA_frag: distanceRGBA_frag,
+  distanceRGBA_vert: distanceRGBA_vert,
+  equirect_frag: equirect_frag,
+  equirect_vert: equirect_vert,
+  linedashed_frag: linedashed_frag,
+  linedashed_vert: linedashed_vert,
+  meshbasic_frag: meshbasic_frag,
+  meshbasic_vert: meshbasic_vert,
+  meshlambert_frag: meshlambert_frag,
+  meshlambert_vert: meshlambert_vert,
+  meshmatcap_frag: meshmatcap_frag,
+  meshmatcap_vert: meshmatcap_vert,
+  meshtoon_frag: meshtoon_frag,
+  meshtoon_vert: meshtoon_vert,
+  meshphong_frag: meshphong_frag,
+  meshphong_vert: meshphong_vert,
+  meshphysical_frag: meshphysical_frag,
+  meshphysical_vert: meshphysical_vert,
+  normal_frag: normal_frag,
+  normal_vert: normal_vert,
+  points_frag: points_frag,
+  points_vert: points_vert,
+  shadow_frag: shadow_frag,
+  shadow_vert: shadow_vert,
+  sprite_frag: sprite_frag,
+  sprite_vert: sprite_vert
+};
+/**
+ * Uniforms library for shared webgl shaders
+ */
+
+exports.ShaderChunk = ShaderChunk;
+const UniformsLib = {
+  common: {
+    diffuse: {
+      value: new Color(0xeeeeee)
+    },
+    opacity: {
+      value: 1.0
+    },
+    map: {
+      value: null
+    },
+    uvTransform: {
+      value: new Matrix3()
+    },
+    uv2Transform: {
+      value: new Matrix3()
+    },
+    alphaMap: {
+      value: null
+    }
+  },
+  specularmap: {
+    specularMap: {
+      value: null
+    }
+  },
+  envmap: {
+    envMap: {
+      value: null
+    },
+    flipEnvMap: {
+      value: -1
+    },
+    reflectivity: {
+      value: 1.0
+    },
+    refractionRatio: {
+      value: 0.98
+    },
+    maxMipLevel: {
+      value: 0
+    }
+  },
+  aomap: {
+    aoMap: {
+      value: null
+    },
+    aoMapIntensity: {
+      value: 1
+    }
+  },
+  lightmap: {
+    lightMap: {
+      value: null
+    },
+    lightMapIntensity: {
+      value: 1
+    }
+  },
+  emissivemap: {
+    emissiveMap: {
+      value: null
+    }
+  },
+  bumpmap: {
+    bumpMap: {
+      value: null
+    },
+    bumpScale: {
+      value: 1
+    }
+  },
+  normalmap: {
+    normalMap: {
+      value: null
+    },
+    normalScale: {
+      value: new Vector2(1, 1)
+    }
+  },
+  displacementmap: {
+    displacementMap: {
+      value: null
+    },
+    displacementScale: {
+      value: 1
+    },
+    displacementBias: {
+      value: 0
+    }
+  },
+  roughnessmap: {
+    roughnessMap: {
+      value: null
+    }
+  },
+  metalnessmap: {
+    metalnessMap: {
+      value: null
+    }
+  },
+  gradientmap: {
+    gradientMap: {
+      value: null
+    }
+  },
+  fog: {
+    fogDensity: {
+      value: 0.00025
+    },
+    fogNear: {
+      value: 1
+    },
+    fogFar: {
+      value: 2000
+    },
+    fogColor: {
+      value: new Color(0xffffff)
+    }
+  },
+  lights: {
+    ambientLightColor: {
+      value: []
+    },
+    lightProbe: {
+      value: []
+    },
+    directionalLights: {
+      value: [],
+      properties: {
+        direction: {},
+        color: {}
+      }
+    },
+    directionalLightShadows: {
+      value: [],
+      properties: {
+        shadowBias: {},
+        shadowNormalBias: {},
+        shadowRadius: {},
+        shadowMapSize: {}
+      }
+    },
+    directionalShadowMap: {
+      value: []
+    },
+    directionalShadowMatrix: {
+      value: []
+    },
+    spotLights: {
+      value: [],
+      properties: {
+        color: {},
+        position: {},
+        direction: {},
+        distance: {},
+        coneCos: {},
+        penumbraCos: {},
+        decay: {}
+      }
+    },
+    spotLightShadows: {
+      value: [],
+      properties: {
+        shadowBias: {},
+        shadowNormalBias: {},
+        shadowRadius: {},
+        shadowMapSize: {}
+      }
+    },
+    spotShadowMap: {
+      value: []
+    },
+    spotShadowMatrix: {
+      value: []
+    },
+    pointLights: {
+      value: [],
+      properties: {
+        color: {},
+        position: {},
+        decay: {},
+        distance: {}
+      }
+    },
+    pointLightShadows: {
+      value: [],
+      properties: {
+        shadowBias: {},
+        shadowNormalBias: {},
+        shadowRadius: {},
+        shadowMapSize: {},
+        shadowCameraNear: {},
+        shadowCameraFar: {}
+      }
+    },
+    pointShadowMap: {
+      value: []
+    },
+    pointShadowMatrix: {
+      value: []
+    },
+    hemisphereLights: {
+      value: [],
+      properties: {
+        direction: {},
+        skyColor: {},
+        groundColor: {}
+      }
+    },
+    // TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
+    rectAreaLights: {
+      value: [],
+      properties: {
+        color: {},
+        position: {},
+        width: {},
+        height: {}
+      }
+    },
+    ltc_1: {
+      value: null
+    },
+    ltc_2: {
+      value: null
+    }
+  },
+  points: {
+    diffuse: {
+      value: new Color(0xeeeeee)
+    },
+    opacity: {
+      value: 1.0
+    },
+    size: {
+      value: 1.0
+    },
+    scale: {
+      value: 1.0
+    },
+    map: {
+      value: null
+    },
+    alphaMap: {
+      value: null
+    },
+    uvTransform: {
+      value: new Matrix3()
+    }
+  },
+  sprite: {
+    diffuse: {
+      value: new Color(0xeeeeee)
+    },
+    opacity: {
+      value: 1.0
+    },
+    center: {
+      value: new Vector2(0.5, 0.5)
+    },
+    rotation: {
+      value: 0.0
+    },
+    map: {
+      value: null
+    },
+    alphaMap: {
+      value: null
+    },
+    uvTransform: {
+      value: new Matrix3()
+    }
+  }
+};
+exports.UniformsLib = UniformsLib;
+const ShaderLib = {
+  basic: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.specularmap, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.fog]),
+    vertexShader: ShaderChunk.meshbasic_vert,
+    fragmentShader: ShaderChunk.meshbasic_frag
+  },
+  lambert: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.specularmap, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.fog, UniformsLib.lights, {
+      emissive: {
+        value: new Color(0x000000)
+      }
+    }]),
+    vertexShader: ShaderChunk.meshlambert_vert,
+    fragmentShader: ShaderChunk.meshlambert_frag
+  },
+  phong: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.specularmap, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.fog, UniformsLib.lights, {
+      emissive: {
+        value: new Color(0x000000)
+      },
+      specular: {
+        value: new Color(0x111111)
+      },
+      shininess: {
+        value: 30
+      }
+    }]),
+    vertexShader: ShaderChunk.meshphong_vert,
+    fragmentShader: ShaderChunk.meshphong_frag
+  },
+  standard: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.roughnessmap, UniformsLib.metalnessmap, UniformsLib.fog, UniformsLib.lights, {
+      emissive: {
+        value: new Color(0x000000)
+      },
+      roughness: {
+        value: 1.0
+      },
+      metalness: {
+        value: 0.0
+      },
+      envMapIntensity: {
+        value: 1
+      } // temporary
+
+    }]),
+    vertexShader: ShaderChunk.meshphysical_vert,
+    fragmentShader: ShaderChunk.meshphysical_frag
+  },
+  toon: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.gradientmap, UniformsLib.fog, UniformsLib.lights, {
+      emissive: {
+        value: new Color(0x000000)
+      }
+    }]),
+    vertexShader: ShaderChunk.meshtoon_vert,
+    fragmentShader: ShaderChunk.meshtoon_frag
+  },
+  matcap: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.fog, {
+      matcap: {
+        value: null
+      }
+    }]),
+    vertexShader: ShaderChunk.meshmatcap_vert,
+    fragmentShader: ShaderChunk.meshmatcap_frag
+  },
+  points: {
+    uniforms: mergeUniforms([UniformsLib.points, UniformsLib.fog]),
+    vertexShader: ShaderChunk.points_vert,
+    fragmentShader: ShaderChunk.points_frag
+  },
+  dashed: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.fog, {
+      scale: {
+        value: 1
+      },
+      dashSize: {
+        value: 1
+      },
+      totalSize: {
+        value: 2
+      }
+    }]),
+    vertexShader: ShaderChunk.linedashed_vert,
+    fragmentShader: ShaderChunk.linedashed_frag
+  },
+  depth: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.displacementmap]),
+    vertexShader: ShaderChunk.depth_vert,
+    fragmentShader: ShaderChunk.depth_frag
+  },
+  normal: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, {
+      opacity: {
+        value: 1.0
+      }
+    }]),
+    vertexShader: ShaderChunk.normal_vert,
+    fragmentShader: ShaderChunk.normal_frag
+  },
+  sprite: {
+    uniforms: mergeUniforms([UniformsLib.sprite, UniformsLib.fog]),
+    vertexShader: ShaderChunk.sprite_vert,
+    fragmentShader: ShaderChunk.sprite_frag
+  },
+  background: {
+    uniforms: {
+      uvTransform: {
+        value: new Matrix3()
+      },
+      t2D: {
+        value: null
+      }
+    },
+    vertexShader: ShaderChunk.background_vert,
+    fragmentShader: ShaderChunk.background_frag
+  },
+
+  /* -------------------------------------------------------------------------
+  //	Cube map shader
+   ------------------------------------------------------------------------- */
+  cube: {
+    uniforms: mergeUniforms([UniformsLib.envmap, {
+      opacity: {
+        value: 1.0
+      }
+    }]),
+    vertexShader: ShaderChunk.cube_vert,
+    fragmentShader: ShaderChunk.cube_frag
+  },
+  equirect: {
+    uniforms: {
+      tEquirect: {
+        value: null
+      }
+    },
+    vertexShader: ShaderChunk.equirect_vert,
+    fragmentShader: ShaderChunk.equirect_frag
+  },
+  distanceRGBA: {
+    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.displacementmap, {
+      referencePosition: {
+        value: new Vector3()
+      },
+      nearDistance: {
+        value: 1
+      },
+      farDistance: {
+        value: 1000
+      }
+    }]),
+    vertexShader: ShaderChunk.distanceRGBA_vert,
+    fragmentShader: ShaderChunk.distanceRGBA_frag
+  },
+  shadow: {
+    uniforms: mergeUniforms([UniformsLib.lights, UniformsLib.fog, {
+      color: {
+        value: new Color(0x00000)
+      },
+      opacity: {
+        value: 1.0
+      }
+    }]),
+    vertexShader: ShaderChunk.shadow_vert,
+    fragmentShader: ShaderChunk.shadow_frag
+  }
+};
+exports.ShaderLib = ShaderLib;
+ShaderLib.physical = {
+  uniforms: mergeUniforms([ShaderLib.standard.uniforms, {
+    clearcoat: {
+      value: 0
+    },
+    clearcoatMap: {
+      value: null
+    },
+    clearcoatRoughness: {
+      value: 0
+    },
+    clearcoatRoughnessMap: {
+      value: null
+    },
+    clearcoatNormalScale: {
+      value: new Vector2(1, 1)
+    },
+    clearcoatNormalMap: {
+      value: null
+    },
+    sheen: {
+      value: new Color(0x000000)
+    },
+    transmission: {
+      value: 0
+    },
+    transmissionMap: {
+      value: null
+    }
+  }]),
+  vertexShader: ShaderChunk.meshphysical_vert,
+  fragmentShader: ShaderChunk.meshphysical_frag
+};
+
+function WebGLBackground(renderer, cubemaps, state, objects, premultipliedAlpha) {
+  const clearColor = new Color(0x000000);
+  let clearAlpha = 0;
+  let planeMesh;
+  let boxMesh;
+  let currentBackground = null;
+  let currentBackgroundVersion = 0;
+  let currentTonemapping = null;
+
+  function render(renderList, scene, camera, forceClear) {
+    let background = scene.isScene === true ? scene.background : null;
+
+    if (background && background.isTexture) {
+      background = cubemaps.get(background);
+    } // Ignore background in AR
+    // TODO: Reconsider this.
+
+
+    const xr = renderer.xr;
+    const session = xr.getSession && xr.getSession();
+
+    if (session && session.environmentBlendMode === 'additive') {
+      background = null;
+    }
+
+    if (background === null) {
+      setClear(clearColor, clearAlpha);
+    } else if (background && background.isColor) {
+      setClear(background, 1);
+      forceClear = true;
+    }
+
+    if (renderer.autoClear || forceClear) {
+      renderer.clear(renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil);
+    }
+
+    if (background && (background.isCubeTexture || background.isWebGLCubeRenderTarget || background.mapping === CubeUVReflectionMapping)) {
+      if (boxMesh === undefined) {
+        boxMesh = new Mesh(new BoxGeometry(1, 1, 1), new ShaderMaterial({
+          name: 'BackgroundCubeMaterial',
+          uniforms: cloneUniforms(ShaderLib.cube.uniforms),
+          vertexShader: ShaderLib.cube.vertexShader,
+          fragmentShader: ShaderLib.cube.fragmentShader,
+          side: BackSide,
+          depthTest: false,
+          depthWrite: false,
+          fog: false
+        }));
+        boxMesh.geometry.deleteAttribute('normal');
+        boxMesh.geometry.deleteAttribute('uv');
+
+        boxMesh.onBeforeRender = function (renderer, scene, camera) {
+          this.matrixWorld.copyPosition(camera.matrixWorld);
+        }; // enable code injection for non-built-in material
+
+
+        Object.defineProperty(boxMesh.material, 'envMap', {
+          get: function () {
+            return this.uniforms.envMap.value;
+          }
+        });
+        objects.update(boxMesh);
+      }
+
+      if (background.isWebGLCubeRenderTarget) {
+        // TODO Deprecate
+        background = background.texture;
+      }
+
+      boxMesh.material.uniforms.envMap.value = background;
+      boxMesh.material.uniforms.flipEnvMap.value = background.isCubeTexture && background._needsFlipEnvMap ? -1 : 1;
+
+      if (currentBackground !== background || currentBackgroundVersion !== background.version || currentTonemapping !== renderer.toneMapping) {
+        boxMesh.material.needsUpdate = true;
+        currentBackground = background;
+        currentBackgroundVersion = background.version;
+        currentTonemapping = renderer.toneMapping;
+      } // push to the pre-sorted opaque render list
+
+
+      renderList.unshift(boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null);
+    } else if (background && background.isTexture) {
+      if (planeMesh === undefined) {
+        planeMesh = new Mesh(new PlaneGeometry(2, 2), new ShaderMaterial({
+          name: 'BackgroundMaterial',
+          uniforms: cloneUniforms(ShaderLib.background.uniforms),
+          vertexShader: ShaderLib.background.vertexShader,
+          fragmentShader: ShaderLib.background.fragmentShader,
+          side: FrontSide,
+          depthTest: false,
+          depthWrite: false,
+          fog: false
+        }));
+        planeMesh.geometry.deleteAttribute('normal'); // enable code injection for non-built-in material
+
+        Object.defineProperty(planeMesh.material, 'map', {
+          get: function () {
+            return this.uniforms.t2D.value;
+          }
+        });
+        objects.update(planeMesh);
+      }
+
+      planeMesh.material.uniforms.t2D.value = background;
+
+      if (background.matrixAutoUpdate === true) {
+        background.updateMatrix();
+      }
+
+      planeMesh.material.uniforms.uvTransform.value.copy(background.matrix);
+
+      if (currentBackground !== background || currentBackgroundVersion !== background.version || currentTonemapping !== renderer.toneMapping) {
+        planeMesh.material.needsUpdate = true;
+        currentBackground = background;
+        currentBackgroundVersion = background.version;
+        currentTonemapping = renderer.toneMapping;
+      } // push to the pre-sorted opaque render list
+
+
+      renderList.unshift(planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null);
+    }
+  }
+
+  function setClear(color, alpha) {
+    state.buffers.color.setClear(color.r, color.g, color.b, alpha, premultipliedAlpha);
+  }
+
+  return {
+    getClearColor: function () {
+      return clearColor;
+    },
+    setClearColor: function (color, alpha = 1) {
+      clearColor.set(color);
+      clearAlpha = alpha;
+      setClear(clearColor, clearAlpha);
+    },
+    getClearAlpha: function () {
+      return clearAlpha;
+    },
+    setClearAlpha: function (alpha) {
+      clearAlpha = alpha;
+      setClear(clearColor, clearAlpha);
+    },
+    render: render
+  };
+}
+
+function WebGLBindingStates(gl, extensions, attributes, capabilities) {
+  const maxVertexAttributes = gl.getParameter(34921);
+  const extension = capabilities.isWebGL2 ? null : extensions.get('OES_vertex_array_object');
+  const vaoAvailable = capabilities.isWebGL2 || extension !== null;
+  const bindingStates = {};
+  const defaultState = createBindingState(null);
+  let currentState = defaultState;
+
+  function setup(object, material, program, geometry, index) {
+    let updateBuffers = false;
+
+    if (vaoAvailable) {
+      const state = getBindingState(geometry, program, material);
+
+      if (currentState !== state) {
+        currentState = state;
+        bindVertexArrayObject(currentState.object);
+      }
+
+      updateBuffers = needsUpdate(geometry, index);
+      if (updateBuffers) saveCache(geometry, index);
+    } else {
+      const wireframe = material.wireframe === true;
+
+      if (currentState.geometry !== geometry.id || currentState.program !== program.id || currentState.wireframe !== wireframe) {
+        currentState.geometry = geometry.id;
+        currentState.program = program.id;
+        currentState.wireframe = wireframe;
+        updateBuffers = true;
+      }
+    }
+
+    if (object.isInstancedMesh === true) {
+      updateBuffers = true;
+    }
+
+    if (index !== null) {
+      attributes.update(index, 34963);
+    }
+
+    if (updateBuffers) {
+      setupVertexAttributes(object, material, program, geometry);
+
+      if (index !== null) {
+        gl.bindBuffer(34963, attributes.get(index).buffer);
+      }
+    }
+  }
+
+  function createVertexArrayObject() {
+    if (capabilities.isWebGL2) return gl.createVertexArray();
+    return extension.createVertexArrayOES();
+  }
+
+  function bindVertexArrayObject(vao) {
+    if (capabilities.isWebGL2) return gl.bindVertexArray(vao);
+    return extension.bindVertexArrayOES(vao);
+  }
+
+  function deleteVertexArrayObject(vao) {
+    if (capabilities.isWebGL2) return gl.deleteVertexArray(vao);
+    return extension.deleteVertexArrayOES(vao);
+  }
+
+  function getBindingState(geometry, program, material) {
+    const wireframe = material.wireframe === true;
+    let programMap = bindingStates[geometry.id];
+
+    if (programMap === undefined) {
+      programMap = {};
+      bindingStates[geometry.id] = programMap;
+    }
+
+    let stateMap = programMap[program.id];
+
+    if (stateMap === undefined) {
+      stateMap = {};
+      programMap[program.id] = stateMap;
+    }
+
+    let state = stateMap[wireframe];
+
+    if (state === undefined) {
+      state = createBindingState(createVertexArrayObject());
+      stateMap[wireframe] = state;
+    }
+
+    return state;
+  }
+
+  function createBindingState(vao) {
+    const newAttributes = [];
+    const enabledAttributes = [];
+    const attributeDivisors = [];
+
+    for (let i = 0; i < maxVertexAttributes; i++) {
+      newAttributes[i] = 0;
+      enabledAttributes[i] = 0;
+      attributeDivisors[i] = 0;
+    }
+
+    return {
+      // for backward compatibility on non-VAO support browser
+      geometry: null,
+      program: null,
+      wireframe: false,
+      newAttributes: newAttributes,
+      enabledAttributes: enabledAttributes,
+      attributeDivisors: attributeDivisors,
+      object: vao,
+      attributes: {},
+      index: null
+    };
+  }
+
+  function needsUpdate(geometry, index) {
+    const cachedAttributes = currentState.attributes;
+    const geometryAttributes = geometry.attributes;
+    let attributesNum = 0;
+
+    for (const key in geometryAttributes) {
+      const cachedAttribute = cachedAttributes[key];
+      const geometryAttribute = geometryAttributes[key];
+      if (cachedAttribute === undefined) return true;
+      if (cachedAttribute.attribute !== geometryAttribute) return true;
+      if (cachedAttribute.data !== geometryAttribute.data) return true;
+      attributesNum++;
+    }
+
+    if (currentState.attributesNum !== attributesNum) return true;
+    if (currentState.index !== index) return true;
+    return false;
+  }
+
+  function saveCache(geometry, index) {
+    const cache = {};
+    const attributes = geometry.attributes;
+    let attributesNum = 0;
+
+    for (const key in attributes) {
+      const attribute = attributes[key];
+      const data = {};
+      data.attribute = attribute;
+
+      if (attribute.data) {
+        data.data = attribute.data;
+      }
+
+      cache[key] = data;
+      attributesNum++;
+    }
+
+    currentState.attributes = cache;
+    currentState.attributesNum = attributesNum;
+    currentState.index = index;
+  }
+
+  function initAttributes() {
+    const newAttributes = currentState.newAttributes;
+
+    for (let i = 0, il = newAttributes.length; i < il; i++) {
+      newAttributes[i] = 0;
+    }
+  }
+
+  function enableAttribute(attribute) {
+    enableAttributeAndDivisor(attribute, 0);
+  }
+
+  function enableAttributeAndDivisor(attribute, meshPerAttribute) {
+    const newAttributes = currentState.newAttributes;
+    const enabledAttributes = currentState.enabledAttributes;
+    const attributeDivisors = currentState.attributeDivisors;
+    newAttributes[attribute] = 1;
+
+    if (enabledAttributes[attribute] === 0) {
+      gl.enableVertexAttribArray(attribute);
+      enabledAttributes[attribute] = 1;
+    }
+
+    if (attributeDivisors[attribute] !== meshPerAttribute) {
+      const extension = capabilities.isWebGL2 ? gl : extensions.get('ANGLE_instanced_arrays');
+      extension[capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE'](attribute, meshPerAttribute);
+      attributeDivisors[attribute] = meshPerAttribute;
+    }
+  }
+
+  function disableUnusedAttributes() {
+    const newAttributes = currentState.newAttributes;
+    const enabledAttributes = currentState.enabledAttributes;
+
+    for (let i = 0, il = enabledAttributes.length; i < il; i++) {
+      if (enabledAttributes[i] !== newAttributes[i]) {
+        gl.disableVertexAttribArray(i);
+        enabledAttributes[i] = 0;
+      }
+    }
+  }
+
+  function vertexAttribPointer(index, size, type, normalized, stride, offset) {
+    if (capabilities.isWebGL2 === true && (type === 5124 || type === 5125)) {
+      gl.vertexAttribIPointer(index, size, type, stride, offset);
+    } else {
+      gl.vertexAttribPointer(index, size, type, normalized, stride, offset);
+    }
+  }
+
+  function setupVertexAttributes(object, material, program, geometry) {
+    if (capabilities.isWebGL2 === false && (object.isInstancedMesh || geometry.isInstancedBufferGeometry)) {
+      if (extensions.get('ANGLE_instanced_arrays') === null) return;
+    }
+
+    initAttributes();
+    const geometryAttributes = geometry.attributes;
+    const programAttributes = program.getAttributes();
+    const materialDefaultAttributeValues = material.defaultAttributeValues;
+
+    for (const name in programAttributes) {
+      const programAttribute = programAttributes[name];
+
+      if (programAttribute >= 0) {
+        const geometryAttribute = geometryAttributes[name];
+
+        if (geometryAttribute !== undefined) {
+          const normalized = geometryAttribute.normalized;
+          const size = geometryAttribute.itemSize;
+          const attribute = attributes.get(geometryAttribute); // TODO Attribute may not be available on context restore
+
+          if (attribute === undefined) continue;
+          const buffer = attribute.buffer;
+          const type = attribute.type;
+          const bytesPerElement = attribute.bytesPerElement;
+
+          if (geometryAttribute.isInterleavedBufferAttribute) {
+            const data = geometryAttribute.data;
+            const stride = data.stride;
+            const offset = geometryAttribute.offset;
+
+            if (data && data.isInstancedInterleavedBuffer) {
+              enableAttributeAndDivisor(programAttribute, data.meshPerAttribute);
+
+              if (geometry._maxInstanceCount === undefined) {
+                geometry._maxInstanceCount = data.meshPerAttribute * data.count;
+              }
+            } else {
+              enableAttribute(programAttribute);
+            }
+
+            gl.bindBuffer(34962, buffer);
+            vertexAttribPointer(programAttribute, size, type, normalized, stride * bytesPerElement, offset * bytesPerElement);
+          } else {
+            if (geometryAttribute.isInstancedBufferAttribute) {
+              enableAttributeAndDivisor(programAttribute, geometryAttribute.meshPerAttribute);
+
+              if (geometry._maxInstanceCount === undefined) {
+                geometry._maxInstanceCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;
+              }
+            } else {
+              enableAttribute(programAttribute);
+            }
+
+            gl.bindBuffer(34962, buffer);
+            vertexAttribPointer(programAttribute, size, type, normalized, 0, 0);
+          }
+        } else if (name === 'instanceMatrix') {
+          const attribute = attributes.get(object.instanceMatrix); // TODO Attribute may not be available on context restore
+
+          if (attribute === undefined) continue;
+          const buffer = attribute.buffer;
+          const type = attribute.type;
+          enableAttributeAndDivisor(programAttribute + 0, 1);
+          enableAttributeAndDivisor(programAttribute + 1, 1);
+          enableAttributeAndDivisor(programAttribute + 2, 1);
+          enableAttributeAndDivisor(programAttribute + 3, 1);
+          gl.bindBuffer(34962, buffer);
+          gl.vertexAttribPointer(programAttribute + 0, 4, type, false, 64, 0);
+          gl.vertexAttribPointer(programAttribute + 1, 4, type, false, 64, 16);
+          gl.vertexAttribPointer(programAttribute + 2, 4, type, false, 64, 32);
+          gl.vertexAttribPointer(programAttribute + 3, 4, type, false, 64, 48);
+        } else if (name === 'instanceColor') {
+          const attribute = attributes.get(object.instanceColor); // TODO Attribute may not be available on context restore
+
+          if (attribute === undefined) continue;
+          const buffer = attribute.buffer;
+          const type = attribute.type;
+          enableAttributeAndDivisor(programAttribute, 1);
+          gl.bindBuffer(34962, buffer);
+          gl.vertexAttribPointer(programAttribute, 3, type, false, 12, 0);
+        } else if (materialDefaultAttributeValues !== undefined) {
+          const value = materialDefaultAttributeValues[name];
+
+          if (value !== undefined) {
+            switch (value.length) {
+              case 2:
+                gl.vertexAttrib2fv(programAttribute, value);
+                break;
+
+              case 3:
+                gl.vertexAttrib3fv(programAttribute, value);
+                break;
+
+              case 4:
+                gl.vertexAttrib4fv(programAttribute, value);
+                break;
+
+              default:
+                gl.vertexAttrib1fv(programAttribute, value);
+            }
+          }
+        }
+      }
+    }
+
+    disableUnusedAttributes();
+  }
+
+  function dispose() {
+    reset();
+
+    for (const geometryId in bindingStates) {
+      const programMap = bindingStates[geometryId];
+
+      for (const programId in programMap) {
+        const stateMap = programMap[programId];
+
+        for (const wireframe in stateMap) {
+          deleteVertexArrayObject(stateMap[wireframe].object);
+          delete stateMap[wireframe];
+        }
+
+        delete programMap[programId];
+      }
+
+      delete bindingStates[geometryId];
+    }
+  }
+
+  function releaseStatesOfGeometry(geometry) {
+    if (bindingStates[geometry.id] === undefined) return;
+    const programMap = bindingStates[geometry.id];
+
+    for (const programId in programMap) {
+      const stateMap = programMap[programId];
+
+      for (const wireframe in stateMap) {
+        deleteVertexArrayObject(stateMap[wireframe].object);
+        delete stateMap[wireframe];
+      }
+
+      delete programMap[programId];
+    }
+
+    delete bindingStates[geometry.id];
+  }
+
+  function releaseStatesOfProgram(program) {
+    for (const geometryId in bindingStates) {
+      const programMap = bindingStates[geometryId];
+      if (programMap[program.id] === undefined) continue;
+      const stateMap = programMap[program.id];
+
+      for (const wireframe in stateMap) {
+        deleteVertexArrayObject(stateMap[wireframe].object);
+        delete stateMap[wireframe];
+      }
+
+      delete programMap[program.id];
+    }
+  }
+
+  function reset() {
+    resetDefaultState();
+    if (currentState === defaultState) return;
+    currentState = defaultState;
+    bindVertexArrayObject(currentState.object);
+  } // for backward-compatilibity
+
+
+  function resetDefaultState() {
+    defaultState.geometry = null;
+    defaultState.program = null;
+    defaultState.wireframe = false;
+  }
+
+  return {
+    setup: setup,
+    reset: reset,
+    resetDefaultState: resetDefaultState,
+    dispose: dispose,
+    releaseStatesOfGeometry: releaseStatesOfGeometry,
+    releaseStatesOfProgram: releaseStatesOfProgram,
+    initAttributes: initAttributes,
+    enableAttribute: enableAttribute,
+    disableUnusedAttributes: disableUnusedAttributes
+  };
+}
+
+function WebGLBufferRenderer(gl, extensions, info, capabilities) {
+  const isWebGL2 = capabilities.isWebGL2;
+  let mode;
+
+  function setMode(value) {
+    mode = value;
+  }
+
+  function render(start, count) {
+    gl.drawArrays(mode, start, count);
+    info.update(count, mode, 1);
+  }
+
+  function renderInstances(start, count, primcount) {
+    if (primcount === 0) return;
+    let extension, methodName;
+
+    if (isWebGL2) {
+      extension = gl;
+      methodName = 'drawArraysInstanced';
+    } else {
+      extension = extensions.get('ANGLE_instanced_arrays');
+      methodName = 'drawArraysInstancedANGLE';
+
+      if (extension === null) {
+        console.error('THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.');
+        return;
+      }
+    }
+
+    extension[methodName](mode, start, count, primcount);
+    info.update(count, mode, primcount);
+  } //
+
+
+  this.setMode = setMode;
+  this.render = render;
+  this.renderInstances = renderInstances;
+}
+
+function WebGLCapabilities(gl, extensions, parameters) {
+  let maxAnisotropy;
+
+  function getMaxAnisotropy() {
+    if (maxAnisotropy !== undefined) return maxAnisotropy;
+
+    if (extensions.has('EXT_texture_filter_anisotropic') === true) {
+      const extension = extensions.get('EXT_texture_filter_anisotropic');
+      maxAnisotropy = gl.getParameter(extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT);
+    } else {
+      maxAnisotropy = 0;
+    }
+
+    return maxAnisotropy;
+  }
+
+  function getMaxPrecision(precision) {
+    if (precision === 'highp') {
+      if (gl.getShaderPrecisionFormat(35633, 36338).precision > 0 && gl.getShaderPrecisionFormat(35632, 36338).precision > 0) {
+        return 'highp';
+      }
+
+      precision = 'mediump';
+    }
+
+    if (precision === 'mediump') {
+      if (gl.getShaderPrecisionFormat(35633, 36337).precision > 0 && gl.getShaderPrecisionFormat(35632, 36337).precision > 0) {
+        return 'mediump';
+      }
+    }
+
+    return 'lowp';
+  }
+  /* eslint-disable no-undef */
+
+
+  const isWebGL2 = typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext || typeof WebGL2ComputeRenderingContext !== 'undefined' && gl instanceof WebGL2ComputeRenderingContext;
+  /* eslint-enable no-undef */
+
+  let precision = parameters.precision !== undefined ? parameters.precision : 'highp';
+  const maxPrecision = getMaxPrecision(precision);
+
+  if (maxPrecision !== precision) {
+    console.warn('THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.');
+    precision = maxPrecision;
+  }
+
+  const logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;
+  const maxTextures = gl.getParameter(34930);
+  const maxVertexTextures = gl.getParameter(35660);
+  const maxTextureSize = gl.getParameter(3379);
+  const maxCubemapSize = gl.getParameter(34076);
+  const maxAttributes = gl.getParameter(34921);
+  const maxVertexUniforms = gl.getParameter(36347);
+  const maxVaryings = gl.getParameter(36348);
+  const maxFragmentUniforms = gl.getParameter(36349);
+  const vertexTextures = maxVertexTextures > 0;
+  const floatFragmentTextures = isWebGL2 || extensions.has('OES_texture_float');
+  const floatVertexTextures = vertexTextures && floatFragmentTextures;
+  const maxSamples = isWebGL2 ? gl.getParameter(36183) : 0;
+  return {
+    isWebGL2: isWebGL2,
+    getMaxAnisotropy: getMaxAnisotropy,
+    getMaxPrecision: getMaxPrecision,
+    precision: precision,
+    logarithmicDepthBuffer: logarithmicDepthBuffer,
+    maxTextures: maxTextures,
+    maxVertexTextures: maxVertexTextures,
+    maxTextureSize: maxTextureSize,
+    maxCubemapSize: maxCubemapSize,
+    maxAttributes: maxAttributes,
+    maxVertexUniforms: maxVertexUniforms,
+    maxVaryings: maxVaryings,
+    maxFragmentUniforms: maxFragmentUniforms,
+    vertexTextures: vertexTextures,
+    floatFragmentTextures: floatFragmentTextures,
+    floatVertexTextures: floatVertexTextures,
+    maxSamples: maxSamples
+  };
+}
+
+function WebGLClipping(properties) {
+  const scope = this;
+  let globalState = null,
+      numGlobalPlanes = 0,
+      localClippingEnabled = false,
+      renderingShadows = false;
+  const plane = new Plane(),
+        viewNormalMatrix = new Matrix3(),
+        uniform = {
+    value: null,
+    needsUpdate: false
+  };
+  this.uniform = uniform;
+  this.numPlanes = 0;
+  this.numIntersection = 0;
+
+  this.init = function (planes, enableLocalClipping, camera) {
+    const enabled = planes.length !== 0 || enableLocalClipping || // enable state of previous frame - the clipping code has to
+    // run another frame in order to reset the state:
+    numGlobalPlanes !== 0 || localClippingEnabled;
+    localClippingEnabled = enableLocalClipping;
+    globalState = projectPlanes(planes, camera, 0);
+    numGlobalPlanes = planes.length;
+    return enabled;
+  };
+
+  this.beginShadows = function () {
+    renderingShadows = true;
+    projectPlanes(null);
+  };
+
+  this.endShadows = function () {
+    renderingShadows = false;
+    resetGlobalState();
+  };
+
+  this.setState = function (material, camera, useCache) {
+    const planes = material.clippingPlanes,
+          clipIntersection = material.clipIntersection,
+          clipShadows = material.clipShadows;
+    const materialProperties = properties.get(material);
+
+    if (!localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && !clipShadows) {
+      // there's no local clipping
+      if (renderingShadows) {
+        // there's no global clipping
+        projectPlanes(null);
+      } else {
+        resetGlobalState();
+      }
+    } else {
+      const nGlobal = renderingShadows ? 0 : numGlobalPlanes,
+            lGlobal = nGlobal * 4;
+      let dstArray = materialProperties.clippingState || null;
+      uniform.value = dstArray; // ensure unique state
+
+      dstArray = projectPlanes(planes, camera, lGlobal, useCache);
+
+      for (let i = 0; i !== lGlobal; ++i) {
+        dstArray[i] = globalState[i];
+      }
+
+      materialProperties.clippingState = dstArray;
+      this.numIntersection = clipIntersection ? this.numPlanes : 0;
+      this.numPlanes += nGlobal;
+    }
+  };
+
+  function resetGlobalState() {
+    if (uniform.value !== globalState) {
+      uniform.value = globalState;
+      uniform.needsUpdate = numGlobalPlanes > 0;
+    }
+
+    scope.numPlanes = numGlobalPlanes;
+    scope.numIntersection = 0;
+  }
+
+  function projectPlanes(planes, camera, dstOffset, skipTransform) {
+    const nPlanes = planes !== null ? planes.length : 0;
+    let dstArray = null;
+
+    if (nPlanes !== 0) {
+      dstArray = uniform.value;
+
+      if (skipTransform !== true || dstArray === null) {
+        const flatSize = dstOffset + nPlanes * 4,
+              viewMatrix = camera.matrixWorldInverse;
+        viewNormalMatrix.getNormalMatrix(viewMatrix);
+
+        if (dstArray === null || dstArray.length < flatSize) {
+          dstArray = new Float32Array(flatSize);
+        }
+
+        for (let i = 0, i4 = dstOffset; i !== nPlanes; ++i, i4 += 4) {
+          plane.copy(planes[i]).applyMatrix4(viewMatrix, viewNormalMatrix);
+          plane.normal.toArray(dstArray, i4);
+          dstArray[i4 + 3] = plane.constant;
+        }
+      }
+
+      uniform.value = dstArray;
+      uniform.needsUpdate = true;
+    }
+
+    scope.numPlanes = nPlanes;
+    scope.numIntersection = 0;
+    return dstArray;
+  }
+}
+
+function WebGLCubeMaps(renderer) {
+  let cubemaps = new WeakMap();
+
+  function mapTextureMapping(texture, mapping) {
+    if (mapping === EquirectangularReflectionMapping) {
+      texture.mapping = CubeReflectionMapping;
+    } else if (mapping === EquirectangularRefractionMapping) {
+      texture.mapping = CubeRefractionMapping;
+    }
+
+    return texture;
+  }
+
+  function get(texture) {
+    if (texture && texture.isTexture) {
+      const mapping = texture.mapping;
+
+      if (mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping) {
+        if (cubemaps.has(texture)) {
+          const cubemap = cubemaps.get(texture).texture;
+          return mapTextureMapping(cubemap, texture.mapping);
+        } else {
+          const image = texture.image;
+
+          if (image && image.height > 0) {
+            const currentRenderTarget = renderer.getRenderTarget();
+            const renderTarget = new WebGLCubeRenderTarget(image.height / 2);
+            renderTarget.fromEquirectangularTexture(renderer, texture);
+            cubemaps.set(texture, renderTarget);
+            renderer.setRenderTarget(currentRenderTarget);
+            texture.addEventListener('dispose', onTextureDispose);
+            return mapTextureMapping(renderTarget.texture, texture.mapping);
+          } else {
+            // image not yet ready. try the conversion next frame
+            return null;
+          }
+        }
+      }
+    }
+
+    return texture;
+  }
+
+  function onTextureDispose(event) {
+    const texture = event.target;
+    texture.removeEventListener('dispose', onTextureDispose);
+    const cubemap = cubemaps.get(texture);
+
+    if (cubemap !== undefined) {
+      cubemaps.delete(texture);
+      cubemap.dispose();
+    }
+  }
+
+  function dispose() {
+    cubemaps = new WeakMap();
+  }
+
+  return {
+    get: get,
+    dispose: dispose
+  };
+}
+
+function WebGLExtensions(gl) {
+  const extensions = {};
+
+  function getExtension(name) {
+    if (extensions[name] !== undefined) {
+      return extensions[name];
+    }
+
+    let extension;
+
+    switch (name) {
+      case 'WEBGL_depth_texture':
+        extension = gl.getExtension('WEBGL_depth_texture') || gl.getExtension('MOZ_WEBGL_depth_texture') || gl.getExtension('WEBKIT_WEBGL_depth_texture');
+        break;
+
+      case 'EXT_texture_filter_anisotropic':
+        extension = gl.getExtension('EXT_texture_filter_anisotropic') || gl.getExtension('MOZ_EXT_texture_filter_anisotropic') || gl.getExtension('WEBKIT_EXT_texture_filter_anisotropic');
+        break;
+
+      case 'WEBGL_compressed_texture_s3tc':
+        extension = gl.getExtension('WEBGL_compressed_texture_s3tc') || gl.getExtension('MOZ_WEBGL_compressed_texture_s3tc') || gl.getExtension('WEBKIT_WEBGL_compressed_texture_s3tc');
+        break;
+
+      case 'WEBGL_compressed_texture_pvrtc':
+        extension = gl.getExtension('WEBGL_compressed_texture_pvrtc') || gl.getExtension('WEBKIT_WEBGL_compressed_texture_pvrtc');
+        break;
+
+      default:
+        extension = gl.getExtension(name);
+    }
+
+    extensions[name] = extension;
+    return extension;
+  }
+
+  return {
+    has: function (name) {
+      return getExtension(name) !== null;
+    },
+    init: function (capabilities) {
+      if (capabilities.isWebGL2) {
+        getExtension('EXT_color_buffer_float');
+      } else {
+        getExtension('WEBGL_depth_texture');
+        getExtension('OES_texture_float');
+        getExtension('OES_texture_half_float');
+        getExtension('OES_texture_half_float_linear');
+        getExtension('OES_standard_derivatives');
+        getExtension('OES_element_index_uint');
+        getExtension('OES_vertex_array_object');
+        getExtension('ANGLE_instanced_arrays');
+      }
+
+      getExtension('OES_texture_float_linear');
+      getExtension('EXT_color_buffer_half_float');
+    },
+    get: function (name) {
+      const extension = getExtension(name);
+
+      if (extension === null) {
+        console.warn('THREE.WebGLRenderer: ' + name + ' extension not supported.');
+      }
+
+      return extension;
+    }
+  };
+}
+
+function WebGLGeometries(gl, attributes, info, bindingStates) {
+  const geometries = {};
+  const wireframeAttributes = new WeakMap();
+
+  function onGeometryDispose(event) {
+    const geometry = event.target;
+
+    if (geometry.index !== null) {
+      attributes.remove(geometry.index);
+    }
+
+    for (const name in geometry.attributes) {
+      attributes.remove(geometry.attributes[name]);
+    }
+
+    geometry.removeEventListener('dispose', onGeometryDispose);
+    delete geometries[geometry.id];
+    const attribute = wireframeAttributes.get(geometry);
+
+    if (attribute) {
+      attributes.remove(attribute);
+      wireframeAttributes.delete(geometry);
+    }
+
+    bindingStates.releaseStatesOfGeometry(geometry);
+
+    if (geometry.isInstancedBufferGeometry === true) {
+      delete geometry._maxInstanceCount;
+    } //
+
+
+    info.memory.geometries--;
+  }
+
+  function get(object, geometry) {
+    if (geometries[geometry.id] === true) return geometry;
+    geometry.addEventListener('dispose', onGeometryDispose);
+    geometries[geometry.id] = true;
+    info.memory.geometries++;
+    return geometry;
+  }
+
+  function update(geometry) {
+    const geometryAttributes = geometry.attributes; // Updating index buffer in VAO now. See WebGLBindingStates.
+
+    for (const name in geometryAttributes) {
+      attributes.update(geometryAttributes[name], 34962);
+    } // morph targets
+
+
+    const morphAttributes = geometry.morphAttributes;
+
+    for (const name in morphAttributes) {
+      const array = morphAttributes[name];
+
+      for (let i = 0, l = array.length; i < l; i++) {
+        attributes.update(array[i], 34962);
+      }
+    }
+  }
+
+  function updateWireframeAttribute(geometry) {
+    const indices = [];
+    const geometryIndex = geometry.index;
+    const geometryPosition = geometry.attributes.position;
+    let version = 0;
+
+    if (geometryIndex !== null) {
+      const array = geometryIndex.array;
+      version = geometryIndex.version;
+
+      for (let i = 0, l = array.length; i < l; i += 3) {
+        const a = array[i + 0];
+        const b = array[i + 1];
+        const c = array[i + 2];
+        indices.push(a, b, b, c, c, a);
+      }
+    } else {
+      const array = geometryPosition.array;
+      version = geometryPosition.version;
+
+      for (let i = 0, l = array.length / 3 - 1; i < l; i += 3) {
+        const a = i + 0;
+        const b = i + 1;
+        const c = i + 2;
+        indices.push(a, b, b, c, c, a);
+      }
+    }
+
+    const attribute = new (arrayMax(indices) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute)(indices, 1);
+    attribute.version = version; // Updating index buffer in VAO now. See WebGLBindingStates
+    //
+
+    const previousAttribute = wireframeAttributes.get(geometry);
+    if (previousAttribute) attributes.remove(previousAttribute); //
+
+    wireframeAttributes.set(geometry, attribute);
+  }
+
+  function getWireframeAttribute(geometry) {
+    const currentAttribute = wireframeAttributes.get(geometry);
+
+    if (currentAttribute) {
+      const geometryIndex = geometry.index;
+
+      if (geometryIndex !== null) {
+        // if the attribute is obsolete, create a new one
+        if (currentAttribute.version < geometryIndex.version) {
+          updateWireframeAttribute(geometry);
+        }
+      }
+    } else {
+      updateWireframeAttribute(geometry);
+    }
+
+    return wireframeAttributes.get(geometry);
+  }
+
+  return {
+    get: get,
+    update: update,
+    getWireframeAttribute: getWireframeAttribute
+  };
+}
+
+function WebGLIndexedBufferRenderer(gl, extensions, info, capabilities) {
+  const isWebGL2 = capabilities.isWebGL2;
+  let mode;
+
+  function setMode(value) {
+    mode = value;
+  }
+
+  let type, bytesPerElement;
+
+  function setIndex(value) {
+    type = value.type;
+    bytesPerElement = value.bytesPerElement;
+  }
+
+  function render(start, count) {
+    gl.drawElements(mode, count, type, start * bytesPerElement);
+    info.update(count, mode, 1);
+  }
+
+  function renderInstances(start, count, primcount) {
+    if (primcount === 0) return;
+    let extension, methodName;
+
+    if (isWebGL2) {
+      extension = gl;
+      methodName = 'drawElementsInstanced';
+    } else {
+      extension = extensions.get('ANGLE_instanced_arrays');
+      methodName = 'drawElementsInstancedANGLE';
+
+      if (extension === null) {
+        console.error('THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.');
+        return;
+      }
+    }
+
+    extension[methodName](mode, count, type, start * bytesPerElement, primcount);
+    info.update(count, mode, primcount);
+  } //
+
+
+  this.setMode = setMode;
+  this.setIndex = setIndex;
+  this.render = render;
+  this.renderInstances = renderInstances;
+}
+
+function WebGLInfo(gl) {
+  const memory = {
+    geometries: 0,
+    textures: 0
+  };
+  const render = {
+    frame: 0,
+    calls: 0,
+    triangles: 0,
+    points: 0,
+    lines: 0
+  };
+
+  function update(count, mode, instanceCount) {
+    render.calls++;
+
+    switch (mode) {
+      case 4:
+        render.triangles += instanceCount * (count / 3);
+        break;
+
+      case 1:
+        render.lines += instanceCount * (count / 2);
+        break;
+
+      case 3:
+        render.lines += instanceCount * (count - 1);
+        break;
+
+      case 2:
+        render.lines += instanceCount * count;
+        break;
+
+      case 0:
+        render.points += instanceCount * count;
+        break;
+
+      default:
+        console.error('THREE.WebGLInfo: Unknown draw mode:', mode);
+        break;
+    }
+  }
+
+  function reset() {
+    render.frame++;
+    render.calls = 0;
+    render.triangles = 0;
+    render.points = 0;
+    render.lines = 0;
+  }
+
+  return {
+    memory: memory,
+    render: render,
+    programs: null,
+    autoReset: true,
+    reset: reset,
+    update: update
+  };
+}
+
+function numericalSort(a, b) {
+  return a[0] - b[0];
+}
+
+function absNumericalSort(a, b) {
+  return Math.abs(b[1]) - Math.abs(a[1]);
+}
+
+function WebGLMorphtargets(gl) {
+  const influencesList = {};
+  const morphInfluences = new Float32Array(8);
+  const workInfluences = [];
+
+  for (let i = 0; i < 8; i++) {
+    workInfluences[i] = [i, 0];
+  }
+
+  function update(object, geometry, material, program) {
+    const objectInfluences = object.morphTargetInfluences; // When object doesn't have morph target influences defined, we treat it as a 0-length array
+    // This is important to make sure we set up morphTargetBaseInfluence / morphTargetInfluences
+
+    const length = objectInfluences === undefined ? 0 : objectInfluences.length;
+    let influences = influencesList[geometry.id];
+
+    if (influences === undefined) {
+      // initialise list
+      influences = [];
+
+      for (let i = 0; i < length; i++) {
+        influences[i] = [i, 0];
+      }
+
+      influencesList[geometry.id] = influences;
+    } // Collect influences
+
+
+    for (let i = 0; i < length; i++) {
+      const influence = influences[i];
+      influence[0] = i;
+      influence[1] = objectInfluences[i];
+    }
+
+    influences.sort(absNumericalSort);
+
+    for (let i = 0; i < 8; i++) {
+      if (i < length && influences[i][1]) {
+        workInfluences[i][0] = influences[i][0];
+        workInfluences[i][1] = influences[i][1];
+      } else {
+        workInfluences[i][0] = Number.MAX_SAFE_INTEGER;
+        workInfluences[i][1] = 0;
+      }
+    }
+
+    workInfluences.sort(numericalSort);
+    const morphTargets = material.morphTargets && geometry.morphAttributes.position;
+    const morphNormals = material.morphNormals && geometry.morphAttributes.normal;
+    let morphInfluencesSum = 0;
+
+    for (let i = 0; i < 8; i++) {
+      const influence = workInfluences[i];
+      const index = influence[0];
+      const value = influence[1];
+
+      if (index !== Number.MAX_SAFE_INTEGER && value) {
+        if (morphTargets && geometry.getAttribute('morphTarget' + i) !== morphTargets[index]) {
+          geometry.setAttribute('morphTarget' + i, morphTargets[index]);
+        }
+
+        if (morphNormals && geometry.getAttribute('morphNormal' + i) !== morphNormals[index]) {
+          geometry.setAttribute('morphNormal' + i, morphNormals[index]);
+        }
+
+        morphInfluences[i] = value;
+        morphInfluencesSum += value;
+      } else {
+        if (morphTargets && geometry.hasAttribute('morphTarget' + i) === true) {
+          geometry.deleteAttribute('morphTarget' + i);
+        }
+
+        if (morphNormals && geometry.hasAttribute('morphNormal' + i) === true) {
+          geometry.deleteAttribute('morphNormal' + i);
+        }
+
+        morphInfluences[i] = 0;
+      }
+    } // GLSL shader uses formula baseinfluence * base + sum(target * influence)
+    // This allows us to switch between absolute morphs and relative morphs without changing shader code
+    // When baseinfluence = 1 - sum(influence), the above is equivalent to sum((target - base) * influence)
+
+
+    const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;
+    program.getUniforms().setValue(gl, 'morphTargetBaseInfluence', morphBaseInfluence);
+    program.getUniforms().setValue(gl, 'morphTargetInfluences', morphInfluences);
+  }
+
+  return {
+    update: update
+  };
+}
+
+function WebGLObjects(gl, geometries, attributes, info) {
+  let updateMap = new WeakMap();
+
+  function update(object) {
+    const frame = info.render.frame;
+    const geometry = object.geometry;
+    const buffergeometry = geometries.get(object, geometry); // Update once per frame
+
+    if (updateMap.get(buffergeometry) !== frame) {
+      geometries.update(buffergeometry);
+      updateMap.set(buffergeometry, frame);
+    }
+
+    if (object.isInstancedMesh) {
+      if (object.hasEventListener('dispose', onInstancedMeshDispose) === false) {
+        object.addEventListener('dispose', onInstancedMeshDispose);
+      }
+
+      attributes.update(object.instanceMatrix, 34962);
+
+      if (object.instanceColor !== null) {
+        attributes.update(object.instanceColor, 34962);
+      }
+    }
+
+    return buffergeometry;
+  }
+
+  function dispose() {
+    updateMap = new WeakMap();
+  }
+
+  function onInstancedMeshDispose(event) {
+    const instancedMesh = event.target;
+    instancedMesh.removeEventListener('dispose', onInstancedMeshDispose);
+    attributes.remove(instancedMesh.instanceMatrix);
+    if (instancedMesh.instanceColor !== null) attributes.remove(instancedMesh.instanceColor);
+  }
+
+  return {
+    update: update,
+    dispose: dispose
+  };
+}
+
+class DataTexture2DArray extends Texture {
+  constructor(data = null, width = 1, height = 1, depth = 1) {
+    super(null);
+    this.image = {
+      data,
+      width,
+      height,
+      depth
+    };
+    this.magFilter = NearestFilter;
+    this.minFilter = NearestFilter;
+    this.wrapR = ClampToEdgeWrapping;
+    this.generateMipmaps = false;
+    this.flipY = false;
+    this.needsUpdate = true;
+  }
+
+}
+
+exports.DataTexture2DArray = DataTexture2DArray;
+DataTexture2DArray.prototype.isDataTexture2DArray = true;
+
+class DataTexture3D extends Texture {
+  constructor(data = null, width = 1, height = 1, depth = 1) {
+    // We're going to add .setXXX() methods for setting properties later.
+    // Users can still set in DataTexture3D directly.
+    //
+    //	const texture = new THREE.DataTexture3D( data, width, height, depth );
+    // 	texture.anisotropy = 16;
+    //
+    // See #14839
+    super(null);
+    this.image = {
+      data,
+      width,
+      height,
+      depth
+    };
+    this.magFilter = NearestFilter;
+    this.minFilter = NearestFilter;
+    this.wrapR = ClampToEdgeWrapping;
+    this.generateMipmaps = false;
+    this.flipY = false;
+    this.needsUpdate = true;
+  }
+
+}
+
+exports.DataTexture3D = DataTexture3D;
+DataTexture3D.prototype.isDataTexture3D = true;
+/**
+ * Uniforms of a program.
+ * Those form a tree structure with a special top-level container for the root,
+ * which you get by calling 'new WebGLUniforms( gl, program )'.
+ *
+ *
+ * Properties of inner nodes including the top-level container:
+ *
+ * .seq - array of nested uniforms
+ * .map - nested uniforms by name
+ *
+ *
+ * Methods of all nodes except the top-level container:
+ *
+ * .setValue( gl, value, [textures] )
+ *
+ * 		uploads a uniform value(s)
+ *  	the 'textures' parameter is needed for sampler uniforms
+ *
+ *
+ * Static methods of the top-level container (textures factorizations):
+ *
+ * .upload( gl, seq, values, textures )
+ *
+ * 		sets uniforms in 'seq' to 'values[id].value'
+ *
+ * .seqWithValue( seq, values ) : filteredSeq
+ *
+ * 		filters 'seq' entries with corresponding entry in values
+ *
+ *
+ * Methods of the top-level container (textures factorizations):
+ *
+ * .setValue( gl, name, value, textures )
+ *
+ * 		sets uniform with  name 'name' to 'value'
+ *
+ * .setOptional( gl, obj, prop )
+ *
+ * 		like .set for an optional property of the object
+ *
+ */
+
+const emptyTexture = new Texture();
+const emptyTexture2dArray = new DataTexture2DArray();
+const emptyTexture3d = new DataTexture3D();
+const emptyCubeTexture = new CubeTexture(); // --- Utilities ---
+// Array Caches (provide typed arrays for temporary by size)
+
+const arrayCacheF32 = [];
+const arrayCacheI32 = []; // Float32Array caches used for uploading Matrix uniforms
+
+const mat4array = new Float32Array(16);
+const mat3array = new Float32Array(9);
+const mat2array = new Float32Array(4); // Flattening for arrays of vectors and matrices
+
+function flatten(array, nBlocks, blockSize) {
+  const firstElem = array[0];
+  if (firstElem <= 0 || firstElem > 0) return array; // unoptimized: ! isNaN( firstElem )
+  // see http://jacksondunstan.com/articles/983
+
+  const n = nBlocks * blockSize;
+  let r = arrayCacheF32[n];
+
+  if (r === undefined) {
+    r = new Float32Array(n);
+    arrayCacheF32[n] = r;
+  }
+
+  if (nBlocks !== 0) {
+    firstElem.toArray(r, 0);
+
+    for (let i = 1, offset = 0; i !== nBlocks; ++i) {
+      offset += blockSize;
+      array[i].toArray(r, offset);
+    }
+  }
+
+  return r;
+}
+
+function arraysEqual(a, b) {
+  if (a.length !== b.length) return false;
+
+  for (let i = 0, l = a.length; i < l; i++) {
+    if (a[i] !== b[i]) return false;
+  }
+
+  return true;
+}
+
+function copyArray(a, b) {
+  for (let i = 0, l = b.length; i < l; i++) {
+    a[i] = b[i];
+  }
+} // Texture unit allocation
+
+
+function allocTexUnits(textures, n) {
+  let r = arrayCacheI32[n];
+
+  if (r === undefined) {
+    r = new Int32Array(n);
+    arrayCacheI32[n] = r;
+  }
+
+  for (let i = 0; i !== n; ++i) {
+    r[i] = textures.allocateTextureUnit();
+  }
+
+  return r;
+} // --- Setters ---
+// Note: Defining these methods externally, because they come in a bunch
+// and this way their names minify.
+// Single scalar
+
+
+function setValueV1f(gl, v) {
+  const cache = this.cache;
+  if (cache[0] === v) return;
+  gl.uniform1f(this.addr, v);
+  cache[0] = v;
+} // Single float vector (from flat array or THREE.VectorN)
+
+
+function setValueV2f(gl, v) {
+  const cache = this.cache;
+
+  if (v.x !== undefined) {
+    if (cache[0] !== v.x || cache[1] !== v.y) {
+      gl.uniform2f(this.addr, v.x, v.y);
+      cache[0] = v.x;
+      cache[1] = v.y;
+    }
+  } else {
+    if (arraysEqual(cache, v)) return;
+    gl.uniform2fv(this.addr, v);
+    copyArray(cache, v);
+  }
+}
+
+function setValueV3f(gl, v) {
+  const cache = this.cache;
+
+  if (v.x !== undefined) {
+    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z) {
+      gl.uniform3f(this.addr, v.x, v.y, v.z);
+      cache[0] = v.x;
+      cache[1] = v.y;
+      cache[2] = v.z;
+    }
+  } else if (v.r !== undefined) {
+    if (cache[0] !== v.r || cache[1] !== v.g || cache[2] !== v.b) {
+      gl.uniform3f(this.addr, v.r, v.g, v.b);
+      cache[0] = v.r;
+      cache[1] = v.g;
+      cache[2] = v.b;
+    }
+  } else {
+    if (arraysEqual(cache, v)) return;
+    gl.uniform3fv(this.addr, v);
+    copyArray(cache, v);
+  }
+}
+
+function setValueV4f(gl, v) {
+  const cache = this.cache;
+
+  if (v.x !== undefined) {
+    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z || cache[3] !== v.w) {
+      gl.uniform4f(this.addr, v.x, v.y, v.z, v.w);
+      cache[0] = v.x;
+      cache[1] = v.y;
+      cache[2] = v.z;
+      cache[3] = v.w;
+    }
+  } else {
+    if (arraysEqual(cache, v)) return;
+    gl.uniform4fv(this.addr, v);
+    copyArray(cache, v);
+  }
+} // Single matrix (from flat array or MatrixN)
+
+
+function setValueM2(gl, v) {
+  const cache = this.cache;
+  const elements = v.elements;
+
+  if (elements === undefined) {
+    if (arraysEqual(cache, v)) return;
+    gl.uniformMatrix2fv(this.addr, false, v);
+    copyArray(cache, v);
+  } else {
+    if (arraysEqual(cache, elements)) return;
+    mat2array.set(elements);
+    gl.uniformMatrix2fv(this.addr, false, mat2array);
+    copyArray(cache, elements);
+  }
+}
+
+function setValueM3(gl, v) {
+  const cache = this.cache;
+  const elements = v.elements;
+
+  if (elements === undefined) {
+    if (arraysEqual(cache, v)) return;
+    gl.uniformMatrix3fv(this.addr, false, v);
+    copyArray(cache, v);
+  } else {
+    if (arraysEqual(cache, elements)) return;
+    mat3array.set(elements);
+    gl.uniformMatrix3fv(this.addr, false, mat3array);
+    copyArray(cache, elements);
+  }
+}
+
+function setValueM4(gl, v) {
+  const cache = this.cache;
+  const elements = v.elements;
+
+  if (elements === undefined) {
+    if (arraysEqual(cache, v)) return;
+    gl.uniformMatrix4fv(this.addr, false, v);
+    copyArray(cache, v);
+  } else {
+    if (arraysEqual(cache, elements)) return;
+    mat4array.set(elements);
+    gl.uniformMatrix4fv(this.addr, false, mat4array);
+    copyArray(cache, elements);
+  }
+} // Single texture (2D / Cube)
+
+
+function setValueT1(gl, v, textures) {
+  const cache = this.cache;
+  const unit = textures.allocateTextureUnit();
+
+  if (cache[0] !== unit) {
+    gl.uniform1i(this.addr, unit);
+    cache[0] = unit;
+  }
+
+  textures.safeSetTexture2D(v || emptyTexture, unit);
+}
+
+function setValueT2DArray1(gl, v, textures) {
+  const cache = this.cache;
+  const unit = textures.allocateTextureUnit();
+
+  if (cache[0] !== unit) {
+    gl.uniform1i(this.addr, unit);
+    cache[0] = unit;
+  }
+
+  textures.setTexture2DArray(v || emptyTexture2dArray, unit);
+}
+
+function setValueT3D1(gl, v, textures) {
+  const cache = this.cache;
+  const unit = textures.allocateTextureUnit();
+
+  if (cache[0] !== unit) {
+    gl.uniform1i(this.addr, unit);
+    cache[0] = unit;
+  }
+
+  textures.setTexture3D(v || emptyTexture3d, unit);
+}
+
+function setValueT6(gl, v, textures) {
+  const cache = this.cache;
+  const unit = textures.allocateTextureUnit();
+
+  if (cache[0] !== unit) {
+    gl.uniform1i(this.addr, unit);
+    cache[0] = unit;
+  }
+
+  textures.safeSetTextureCube(v || emptyCubeTexture, unit);
+} // Integer / Boolean vectors or arrays thereof (always flat arrays)
+
+
+function setValueV1i(gl, v) {
+  const cache = this.cache;
+  if (cache[0] === v) return;
+  gl.uniform1i(this.addr, v);
+  cache[0] = v;
+}
+
+function setValueV2i(gl, v) {
+  const cache = this.cache;
+  if (arraysEqual(cache, v)) return;
+  gl.uniform2iv(this.addr, v);
+  copyArray(cache, v);
+}
+
+function setValueV3i(gl, v) {
+  const cache = this.cache;
+  if (arraysEqual(cache, v)) return;
+  gl.uniform3iv(this.addr, v);
+  copyArray(cache, v);
+}
+
+function setValueV4i(gl, v) {
+  const cache = this.cache;
+  if (arraysEqual(cache, v)) return;
+  gl.uniform4iv(this.addr, v);
+  copyArray(cache, v);
+} // uint
+
+
+function setValueV1ui(gl, v) {
+  const cache = this.cache;
+  if (cache[0] === v) return;
+  gl.uniform1ui(this.addr, v);
+  cache[0] = v;
+} // Helper to pick the right setter for the singular case
+
+
+function getSingularSetter(type) {
+  switch (type) {
+    case 0x1406:
+      return setValueV1f;
+    // FLOAT
+
+    case 0x8b50:
+      return setValueV2f;
+    // _VEC2
+
+    case 0x8b51:
+      return setValueV3f;
+    // _VEC3
+
+    case 0x8b52:
+      return setValueV4f;
+    // _VEC4
+
+    case 0x8b5a:
+      return setValueM2;
+    // _MAT2
+
+    case 0x8b5b:
+      return setValueM3;
+    // _MAT3
+
+    case 0x8b5c:
+      return setValueM4;
+    // _MAT4
+
+    case 0x1404:
+    case 0x8b56:
+      return setValueV1i;
+    // INT, BOOL
+
+    case 0x8b53:
+    case 0x8b57:
+      return setValueV2i;
+    // _VEC2
+
+    case 0x8b54:
+    case 0x8b58:
+      return setValueV3i;
+    // _VEC3
+
+    case 0x8b55:
+    case 0x8b59:
+      return setValueV4i;
+    // _VEC4
+
+    case 0x1405:
+      return setValueV1ui;
+    // UINT
+
+    case 0x8b5e: // SAMPLER_2D
+
+    case 0x8d66: // SAMPLER_EXTERNAL_OES
+
+    case 0x8dca: // INT_SAMPLER_2D
+
+    case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D
+
+    case 0x8b62:
+      // SAMPLER_2D_SHADOW
+      return setValueT1;
+
+    case 0x8b5f: // SAMPLER_3D
+
+    case 0x8dcb: // INT_SAMPLER_3D
+
+    case 0x8dd3:
+      // UNSIGNED_INT_SAMPLER_3D
+      return setValueT3D1;
+
+    case 0x8b60: // SAMPLER_CUBE
+
+    case 0x8dcc: // INT_SAMPLER_CUBE
+
+    case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE
+
+    case 0x8dc5:
+      // SAMPLER_CUBE_SHADOW
+      return setValueT6;
+
+    case 0x8dc1: // SAMPLER_2D_ARRAY
+
+    case 0x8dcf: // INT_SAMPLER_2D_ARRAY
+
+    case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY
+
+    case 0x8dc4:
+      // SAMPLER_2D_ARRAY_SHADOW
+      return setValueT2DArray1;
+  }
+} // Array of scalars
+
+
+function setValueV1fArray(gl, v) {
+  gl.uniform1fv(this.addr, v);
+} // Integer / Boolean vectors or arrays thereof (always flat arrays)
+
+
+function setValueV1iArray(gl, v) {
+  gl.uniform1iv(this.addr, v);
+}
+
+function setValueV2iArray(gl, v) {
+  gl.uniform2iv(this.addr, v);
+}
+
+function setValueV3iArray(gl, v) {
+  gl.uniform3iv(this.addr, v);
+}
+
+function setValueV4iArray(gl, v) {
+  gl.uniform4iv(this.addr, v);
+} // Array of vectors (flat or from THREE classes)
+
+
+function setValueV2fArray(gl, v) {
+  const data = flatten(v, this.size, 2);
+  gl.uniform2fv(this.addr, data);
+}
+
+function setValueV3fArray(gl, v) {
+  const data = flatten(v, this.size, 3);
+  gl.uniform3fv(this.addr, data);
+}
+
+function setValueV4fArray(gl, v) {
+  const data = flatten(v, this.size, 4);
+  gl.uniform4fv(this.addr, data);
+} // Array of matrices (flat or from THREE clases)
+
+
+function setValueM2Array(gl, v) {
+  const data = flatten(v, this.size, 4);
+  gl.uniformMatrix2fv(this.addr, false, data);
+}
+
+function setValueM3Array(gl, v) {
+  const data = flatten(v, this.size, 9);
+  gl.uniformMatrix3fv(this.addr, false, data);
+}
+
+function setValueM4Array(gl, v) {
+  const data = flatten(v, this.size, 16);
+  gl.uniformMatrix4fv(this.addr, false, data);
+} // Array of textures (2D / Cube)
+
+
+function setValueT1Array(gl, v, textures) {
+  const n = v.length;
+  const units = allocTexUnits(textures, n);
+  gl.uniform1iv(this.addr, units);
+
+  for (let i = 0; i !== n; ++i) {
+    textures.safeSetTexture2D(v[i] || emptyTexture, units[i]);
+  }
+}
+
+function setValueT6Array(gl, v, textures) {
+  const n = v.length;
+  const units = allocTexUnits(textures, n);
+  gl.uniform1iv(this.addr, units);
+
+  for (let i = 0; i !== n; ++i) {
+    textures.safeSetTextureCube(v[i] || emptyCubeTexture, units[i]);
+  }
+} // Helper to pick the right setter for a pure (bottom-level) array
+
+
+function getPureArraySetter(type) {
+  switch (type) {
+    case 0x1406:
+      return setValueV1fArray;
+    // FLOAT
+
+    case 0x8b50:
+      return setValueV2fArray;
+    // _VEC2
+
+    case 0x8b51:
+      return setValueV3fArray;
+    // _VEC3
+
+    case 0x8b52:
+      return setValueV4fArray;
+    // _VEC4
+
+    case 0x8b5a:
+      return setValueM2Array;
+    // _MAT2
+
+    case 0x8b5b:
+      return setValueM3Array;
+    // _MAT3
+
+    case 0x8b5c:
+      return setValueM4Array;
+    // _MAT4
+
+    case 0x1404:
+    case 0x8b56:
+      return setValueV1iArray;
+    // INT, BOOL
+
+    case 0x8b53:
+    case 0x8b57:
+      return setValueV2iArray;
+    // _VEC2
+
+    case 0x8b54:
+    case 0x8b58:
+      return setValueV3iArray;
+    // _VEC3
+
+    case 0x8b55:
+    case 0x8b59:
+      return setValueV4iArray;
+    // _VEC4
+
+    case 0x8b5e: // SAMPLER_2D
+
+    case 0x8d66: // SAMPLER_EXTERNAL_OES
+
+    case 0x8dca: // INT_SAMPLER_2D
+
+    case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D
+
+    case 0x8b62:
+      // SAMPLER_2D_SHADOW
+      return setValueT1Array;
+
+    case 0x8b60: // SAMPLER_CUBE
+
+    case 0x8dcc: // INT_SAMPLER_CUBE
+
+    case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE
+
+    case 0x8dc5:
+      // SAMPLER_CUBE_SHADOW
+      return setValueT6Array;
+  }
+} // --- Uniform Classes ---
+
+
+function SingleUniform(id, activeInfo, addr) {
+  this.id = id;
+  this.addr = addr;
+  this.cache = [];
+  this.setValue = getSingularSetter(activeInfo.type); // this.path = activeInfo.name; // DEBUG
+}
+
+function PureArrayUniform(id, activeInfo, addr) {
+  this.id = id;
+  this.addr = addr;
+  this.cache = [];
+  this.size = activeInfo.size;
+  this.setValue = getPureArraySetter(activeInfo.type); // this.path = activeInfo.name; // DEBUG
+}
+
+PureArrayUniform.prototype.updateCache = function (data) {
+  const cache = this.cache;
+
+  if (data instanceof Float32Array && cache.length !== data.length) {
+    this.cache = new Float32Array(data.length);
+  }
+
+  copyArray(cache, data);
+};
+
+function StructuredUniform(id) {
+  this.id = id;
+  this.seq = [];
+  this.map = {};
+}
+
+StructuredUniform.prototype.setValue = function (gl, value, textures) {
+  const seq = this.seq;
+
+  for (let i = 0, n = seq.length; i !== n; ++i) {
+    const u = seq[i];
+    u.setValue(gl, value[u.id], textures);
+  }
+}; // --- Top-level ---
+// Parser - builds up the property tree from the path strings
+
+
+const RePathPart = /(\w+)(\])?(\[|\.)?/g; // extracts
+// 	- the identifier (member name or array index)
+//  - followed by an optional right bracket (found when array index)
+//  - followed by an optional left bracket or dot (type of subscript)
+//
+// Note: These portions can be read in a non-overlapping fashion and
+// allow straightforward parsing of the hierarchy that WebGL encodes
+// in the uniform names.
+
+function addUniform(container, uniformObject) {
+  container.seq.push(uniformObject);
+  container.map[uniformObject.id] = uniformObject;
+}
+
+function parseUniform(activeInfo, addr, container) {
+  const path = activeInfo.name,
+        pathLength = path.length; // reset RegExp object, because of the early exit of a previous run
+
+  RePathPart.lastIndex = 0;
+
+  while (true) {
+    const match = RePathPart.exec(path),
+          matchEnd = RePathPart.lastIndex;
+    let id = match[1];
+    const idIsIndex = match[2] === ']',
+          subscript = match[3];
+    if (idIsIndex) id = id | 0; // convert to integer
+
+    if (subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength) {
+      // bare name or "pure" bottom-level array "[0]" suffix
+      addUniform(container, subscript === undefined ? new SingleUniform(id, activeInfo, addr) : new PureArrayUniform(id, activeInfo, addr));
+      break;
+    } else {
+      // step into inner node / create it in case it doesn't exist
+      const map = container.map;
+      let next = map[id];
+
+      if (next === undefined) {
+        next = new StructuredUniform(id);
+        addUniform(container, next);
+      }
+
+      container = next;
+    }
+  }
+} // Root Container
+
+
+function WebGLUniforms(gl, program) {
+  this.seq = [];
+  this.map = {};
+  const n = gl.getProgramParameter(program, 35718);
+
+  for (let i = 0; i < n; ++i) {
+    const info = gl.getActiveUniform(program, i),
+          addr = gl.getUniformLocation(program, info.name);
+    parseUniform(info, addr, this);
+  }
+}
+
+WebGLUniforms.prototype.setValue = function (gl, name, value, textures) {
+  const u = this.map[name];
+  if (u !== undefined) u.setValue(gl, value, textures);
+};
+
+WebGLUniforms.prototype.setOptional = function (gl, object, name) {
+  const v = object[name];
+  if (v !== undefined) this.setValue(gl, name, v);
+}; // Static interface
+
+
+WebGLUniforms.upload = function (gl, seq, values, textures) {
+  for (let i = 0, n = seq.length; i !== n; ++i) {
+    const u = seq[i],
+          v = values[u.id];
+
+    if (v.needsUpdate !== false) {
+      // note: always updating when .needsUpdate is undefined
+      u.setValue(gl, v.value, textures);
+    }
+  }
+};
+
+WebGLUniforms.seqWithValue = function (seq, values) {
+  const r = [];
+
+  for (let i = 0, n = seq.length; i !== n; ++i) {
+    const u = seq[i];
+    if (u.id in values) r.push(u);
+  }
+
+  return r;
+};
+
+function WebGLShader(gl, type, string) {
+  const shader = gl.createShader(type);
+  gl.shaderSource(shader, string);
+  gl.compileShader(shader);
+  return shader;
+}
+
+let programIdCount = 0;
+
+function addLineNumbers(string) {
+  const lines = string.split('\n');
+
+  for (let i = 0; i < lines.length; i++) {
+    lines[i] = i + 1 + ': ' + lines[i];
+  }
+
+  return lines.join('\n');
+}
+
+function getEncodingComponents(encoding) {
+  switch (encoding) {
+    case LinearEncoding:
+      return ['Linear', '( value )'];
+
+    case sRGBEncoding:
+      return ['sRGB', '( value )'];
+
+    case RGBEEncoding:
+      return ['RGBE', '( value )'];
+
+    case RGBM7Encoding:
+      return ['RGBM', '( value, 7.0 )'];
+
+    case RGBM16Encoding:
+      return ['RGBM', '( value, 16.0 )'];
+
+    case RGBDEncoding:
+      return ['RGBD', '( value, 256.0 )'];
+
+    case GammaEncoding:
+      return ['Gamma', '( value, float( GAMMA_FACTOR ) )'];
+
+    case LogLuvEncoding:
+      return ['LogLuv', '( value )'];
+
+    default:
+      console.warn('THREE.WebGLProgram: Unsupported encoding:', encoding);
+      return ['Linear', '( value )'];
+  }
+}
+
+function getShaderErrors(gl, shader, type) {
+  const status = gl.getShaderParameter(shader, 35713);
+  const log = gl.getShaderInfoLog(shader).trim();
+  if (status && log === '') return ''; // --enable-privileged-webgl-extension
+  // console.log( '**' + type + '**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );
+
+  const source = gl.getShaderSource(shader);
+  return 'THREE.WebGLShader: gl.getShaderInfoLog() ' + type + '\n' + log + addLineNumbers(source);
+}
+
+function getTexelDecodingFunction(functionName, encoding) {
+  const components = getEncodingComponents(encoding);
+  return 'vec4 ' + functionName + '( vec4 value ) { return ' + components[0] + 'ToLinear' + components[1] + '; }';
+}
+
+function getTexelEncodingFunction(functionName, encoding) {
+  const components = getEncodingComponents(encoding);
+  return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[0] + components[1] + '; }';
+}
+
+function getToneMappingFunction(functionName, toneMapping) {
+  let toneMappingName;
+
+  switch (toneMapping) {
+    case LinearToneMapping:
+      toneMappingName = 'Linear';
+      break;
+
+    case ReinhardToneMapping:
+      toneMappingName = 'Reinhard';
+      break;
+
+    case CineonToneMapping:
+      toneMappingName = 'OptimizedCineon';
+      break;
+
+    case ACESFilmicToneMapping:
+      toneMappingName = 'ACESFilmic';
+      break;
+
+    case CustomToneMapping:
+      toneMappingName = 'Custom';
+      break;
+
+    default:
+      console.warn('THREE.WebGLProgram: Unsupported toneMapping:', toneMapping);
+      toneMappingName = 'Linear';
+  }
+
+  return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';
+}
+
+function generateExtensions(parameters) {
+  const chunks = [parameters.extensionDerivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.tangentSpaceNormalMap || parameters.clearcoatNormalMap || parameters.flatShading || parameters.shaderID === 'physical' ? '#extension GL_OES_standard_derivatives : enable' : '', (parameters.extensionFragDepth || parameters.logarithmicDepthBuffer) && parameters.rendererExtensionFragDepth ? '#extension GL_EXT_frag_depth : enable' : '', parameters.extensionDrawBuffers && parameters.rendererExtensionDrawBuffers ? '#extension GL_EXT_draw_buffers : require' : '', (parameters.extensionShaderTextureLOD || parameters.envMap) && parameters.rendererExtensionShaderTextureLod ? '#extension GL_EXT_shader_texture_lod : enable' : ''];
+  return chunks.filter(filterEmptyLine).join('\n');
+}
+
+function generateDefines(defines) {
+  const chunks = [];
+
+  for (const name in defines) {
+    const value = defines[name];
+    if (value === false) continue;
+    chunks.push('#define ' + name + ' ' + value);
+  }
+
+  return chunks.join('\n');
+}
+
+function fetchAttributeLocations(gl, program) {
+  const attributes = {};
+  const n = gl.getProgramParameter(program, 35721);
+
+  for (let i = 0; i < n; i++) {
+    const info = gl.getActiveAttrib(program, i);
+    const name = info.name; // console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );
+
+    attributes[name] = gl.getAttribLocation(program, name);
+  }
+
+  return attributes;
+}
+
+function filterEmptyLine(string) {
+  return string !== '';
+}
+
+function replaceLightNums(string, parameters) {
+  return string.replace(/NUM_DIR_LIGHTS/g, parameters.numDirLights).replace(/NUM_SPOT_LIGHTS/g, parameters.numSpotLights).replace(/NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights).replace(/NUM_POINT_LIGHTS/g, parameters.numPointLights).replace(/NUM_HEMI_LIGHTS/g, parameters.numHemiLights).replace(/NUM_DIR_LIGHT_SHADOWS/g, parameters.numDirLightShadows).replace(/NUM_SPOT_LIGHT_SHADOWS/g, parameters.numSpotLightShadows).replace(/NUM_POINT_LIGHT_SHADOWS/g, parameters.numPointLightShadows);
+}
+
+function replaceClippingPlaneNums(string, parameters) {
+  return string.replace(/NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes).replace(/UNION_CLIPPING_PLANES/g, parameters.numClippingPlanes - parameters.numClipIntersection);
+} // Resolve Includes
+
+
+const includePattern = /^[ \t]*#include +<([\w\d./]+)>/gm;
+
+function resolveIncludes(string) {
+  return string.replace(includePattern, includeReplacer);
+}
+
+function includeReplacer(match, include) {
+  const string = ShaderChunk[include];
+
+  if (string === undefined) {
+    throw new Error('Can not resolve #include <' + include + '>');
+  }
+
+  return resolveIncludes(string);
+} // Unroll Loops
+
+
+const deprecatedUnrollLoopPattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;
+const unrollLoopPattern = /#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g;
+
+function unrollLoops(string) {
+  return string.replace(unrollLoopPattern, loopReplacer).replace(deprecatedUnrollLoopPattern, deprecatedLoopReplacer);
+}
+
+function deprecatedLoopReplacer(match, start, end, snippet) {
+  console.warn('WebGLProgram: #pragma unroll_loop shader syntax is deprecated. Please use #pragma unroll_loop_start syntax instead.');
+  return loopReplacer(match, start, end, snippet);
+}
+
+function loopReplacer(match, start, end, snippet) {
+  let string = '';
+
+  for (let i = parseInt(start); i < parseInt(end); i++) {
+    string += snippet.replace(/\[\s*i\s*\]/g, '[ ' + i + ' ]').replace(/UNROLLED_LOOP_INDEX/g, i);
+  }
+
+  return string;
+} //
+
+
+function generatePrecision(parameters) {
+  let precisionstring = 'precision ' + parameters.precision + ' float;\nprecision ' + parameters.precision + ' int;';
+
+  if (parameters.precision === 'highp') {
+    precisionstring += '\n#define HIGH_PRECISION';
+  } else if (parameters.precision === 'mediump') {
+    precisionstring += '\n#define MEDIUM_PRECISION';
+  } else if (parameters.precision === 'lowp') {
+    precisionstring += '\n#define LOW_PRECISION';
+  }
+
+  return precisionstring;
+}
+
+function generateShadowMapTypeDefine(parameters) {
+  let shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';
+
+  if (parameters.shadowMapType === PCFShadowMap) {
+    shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';
+  } else if (parameters.shadowMapType === PCFSoftShadowMap) {
+    shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';
+  } else if (parameters.shadowMapType === VSMShadowMap) {
+    shadowMapTypeDefine = 'SHADOWMAP_TYPE_VSM';
+  }
+
+  return shadowMapTypeDefine;
+}
+
+function generateEnvMapTypeDefine(parameters) {
+  let envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
+
+  if (parameters.envMap) {
+    switch (parameters.envMapMode) {
+      case CubeReflectionMapping:
+      case CubeRefractionMapping:
+        envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
+        break;
+
+      case CubeUVReflectionMapping:
+      case CubeUVRefractionMapping:
+        envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
+        break;
+    }
+  }
+
+  return envMapTypeDefine;
+}
+
+function generateEnvMapModeDefine(parameters) {
+  let envMapModeDefine = 'ENVMAP_MODE_REFLECTION';
+
+  if (parameters.envMap) {
+    switch (parameters.envMapMode) {
+      case CubeRefractionMapping:
+      case CubeUVRefractionMapping:
+        envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
+        break;
+    }
+  }
+
+  return envMapModeDefine;
+}
+
+function generateEnvMapBlendingDefine(parameters) {
+  let envMapBlendingDefine = 'ENVMAP_BLENDING_NONE';
+
+  if (parameters.envMap) {
+    switch (parameters.combine) {
+      case MultiplyOperation:
+        envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
+        break;
+
+      case MixOperation:
+        envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
+        break;
+
+      case AddOperation:
+        envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
+        break;
+    }
+  }
+
+  return envMapBlendingDefine;
+}
+
+function WebGLProgram(renderer, cacheKey, parameters, bindingStates) {
+  const gl = renderer.getContext();
+  const defines = parameters.defines;
+  let vertexShader = parameters.vertexShader;
+  let fragmentShader = parameters.fragmentShader;
+  const shadowMapTypeDefine = generateShadowMapTypeDefine(parameters);
+  const envMapTypeDefine = generateEnvMapTypeDefine(parameters);
+  const envMapModeDefine = generateEnvMapModeDefine(parameters);
+  const envMapBlendingDefine = generateEnvMapBlendingDefine(parameters);
+  const gammaFactorDefine = renderer.gammaFactor > 0 ? renderer.gammaFactor : 1.0;
+  const customExtensions = parameters.isWebGL2 ? '' : generateExtensions(parameters);
+  const customDefines = generateDefines(defines);
+  const program = gl.createProgram();
+  let prefixVertex, prefixFragment;
+  let versionString = parameters.glslVersion ? '#version ' + parameters.glslVersion + '\n' : '';
+
+  if (parameters.isRawShaderMaterial) {
+    prefixVertex = [customDefines].filter(filterEmptyLine).join('\n');
+
+    if (prefixVertex.length > 0) {
+      prefixVertex += '\n';
+    }
+
+    prefixFragment = [customExtensions, customDefines].filter(filterEmptyLine).join('\n');
+
+    if (prefixFragment.length > 0) {
+      prefixFragment += '\n';
+    }
+  } else {
+    prefixVertex = [generatePrecision(parameters), '#define SHADER_NAME ' + parameters.shaderName, customDefines, parameters.instancing ? '#define USE_INSTANCING' : '', parameters.instancingColor ? '#define USE_INSTANCING_COLOR' : '', parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '', '#define GAMMA_FACTOR ' + gammaFactorDefine, '#define MAX_BONES ' + parameters.maxBones, parameters.useFog && parameters.fog ? '#define USE_FOG' : '', parameters.useFog && parameters.fogExp2 ? '#define FOG_EXP2' : '', parameters.map ? '#define USE_MAP' : '', parameters.envMap ? '#define USE_ENVMAP' : '', parameters.envMap ? '#define ' + envMapModeDefine : '', parameters.lightMap ? '#define USE_LIGHTMAP' : '', parameters.aoMap ? '#define USE_AOMAP' : '', parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', parameters.bumpMap ? '#define USE_BUMPMAP' : '', parameters.normalMap ? '#define USE_NORMALMAP' : '', parameters.normalMap && parameters.objectSpaceNormalMap ? '#define OBJECTSPACE_NORMALMAP' : '', parameters.normalMap && parameters.tangentSpaceNormalMap ? '#define TANGENTSPACE_NORMALMAP' : '', parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '', parameters.specularMap ? '#define USE_SPECULARMAP' : '', parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', parameters.alphaMap ? '#define USE_ALPHAMAP' : '', parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', parameters.vertexTangents ? '#define USE_TANGENT' : '', parameters.vertexColors ? '#define USE_COLOR' : '', parameters.vertexUvs ? '#define USE_UV' : '', parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', parameters.flatShading ? '#define FLAT_SHADED' : '', parameters.skinning ? '#define USE_SKINNING' : '', parameters.useVertexTexture ? '#define BONE_TEXTURE' : '', parameters.morphTargets ? '#define USE_MORPHTARGETS' : '', parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '', parameters.doubleSided ? '#define DOUBLE_SIDED' : '', parameters.flipSided ? '#define FLIP_SIDED' : '', parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '', parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ? '#define USE_LOGDEPTHBUF_EXT' : '', 'uniform mat4 modelMatrix;', 'uniform mat4 modelViewMatrix;', 'uniform mat4 projectionMatrix;', 'uniform mat4 viewMatrix;', 'uniform mat3 normalMatrix;', 'uniform vec3 cameraPosition;', 'uniform bool isOrthographic;', '#ifdef USE_INSTANCING', '	attribute mat4 instanceMatrix;', '#endif', '#ifdef USE_INSTANCING_COLOR', '	attribute vec3 instanceColor;', '#endif', 'attribute vec3 position;', 'attribute vec3 normal;', 'attribute vec2 uv;', '#ifdef USE_TANGENT', '	attribute vec4 tangent;', '#endif', '#ifdef USE_COLOR', '	attribute vec3 color;', '#endif', '#ifdef USE_MORPHTARGETS', '	attribute vec3 morphTarget0;', '	attribute vec3 morphTarget1;', '	attribute vec3 morphTarget2;', '	attribute vec3 morphTarget3;', '	#ifdef USE_MORPHNORMALS', '		attribute vec3 morphNormal0;', '		attribute vec3 morphNormal1;', '		attribute vec3 morphNormal2;', '		attribute vec3 morphNormal3;', '	#else', '		attribute vec3 morphTarget4;', '		attribute vec3 morphTarget5;', '		attribute vec3 morphTarget6;', '		attribute vec3 morphTarget7;', '	#endif', '#endif', '#ifdef USE_SKINNING', '	attribute vec4 skinIndex;', '	attribute vec4 skinWeight;', '#endif', '\n'].filter(filterEmptyLine).join('\n');
+    prefixFragment = [customExtensions, generatePrecision(parameters), '#define SHADER_NAME ' + parameters.shaderName, customDefines, parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest + (parameters.alphaTest % 1 ? '' : '.0') : '', // add '.0' if integer
+    '#define GAMMA_FACTOR ' + gammaFactorDefine, parameters.useFog && parameters.fog ? '#define USE_FOG' : '', parameters.useFog && parameters.fogExp2 ? '#define FOG_EXP2' : '', parameters.map ? '#define USE_MAP' : '', parameters.matcap ? '#define USE_MATCAP' : '', parameters.envMap ? '#define USE_ENVMAP' : '', parameters.envMap ? '#define ' + envMapTypeDefine : '', parameters.envMap ? '#define ' + envMapModeDefine : '', parameters.envMap ? '#define ' + envMapBlendingDefine : '', parameters.lightMap ? '#define USE_LIGHTMAP' : '', parameters.aoMap ? '#define USE_AOMAP' : '', parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', parameters.bumpMap ? '#define USE_BUMPMAP' : '', parameters.normalMap ? '#define USE_NORMALMAP' : '', parameters.normalMap && parameters.objectSpaceNormalMap ? '#define OBJECTSPACE_NORMALMAP' : '', parameters.normalMap && parameters.tangentSpaceNormalMap ? '#define TANGENTSPACE_NORMALMAP' : '', parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', parameters.specularMap ? '#define USE_SPECULARMAP' : '', parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', parameters.alphaMap ? '#define USE_ALPHAMAP' : '', parameters.sheen ? '#define USE_SHEEN' : '', parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', parameters.vertexTangents ? '#define USE_TANGENT' : '', parameters.vertexColors || parameters.instancingColor ? '#define USE_COLOR' : '', parameters.vertexUvs ? '#define USE_UV' : '', parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', parameters.gradientMap ? '#define USE_GRADIENTMAP' : '', parameters.flatShading ? '#define FLAT_SHADED' : '', parameters.doubleSided ? '#define DOUBLE_SIDED' : '', parameters.flipSided ? '#define FLIP_SIDED' : '', parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '', parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '', parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ? '#define USE_LOGDEPTHBUF_EXT' : '', (parameters.extensionShaderTextureLOD || parameters.envMap) && parameters.rendererExtensionShaderTextureLod ? '#define TEXTURE_LOD_EXT' : '', 'uniform mat4 viewMatrix;', 'uniform vec3 cameraPosition;', 'uniform bool isOrthographic;', parameters.toneMapping !== NoToneMapping ? '#define TONE_MAPPING' : '', parameters.toneMapping !== NoToneMapping ? ShaderChunk['tonemapping_pars_fragment'] : '', // this code is required here because it is used by the toneMapping() function defined below
+    parameters.toneMapping !== NoToneMapping ? getToneMappingFunction('toneMapping', parameters.toneMapping) : '', parameters.dithering ? '#define DITHERING' : '', ShaderChunk['encodings_pars_fragment'], // this code is required here because it is used by the various encoding/decoding function defined below
+    parameters.map ? getTexelDecodingFunction('mapTexelToLinear', parameters.mapEncoding) : '', parameters.matcap ? getTexelDecodingFunction('matcapTexelToLinear', parameters.matcapEncoding) : '', parameters.envMap ? getTexelDecodingFunction('envMapTexelToLinear', parameters.envMapEncoding) : '', parameters.emissiveMap ? getTexelDecodingFunction('emissiveMapTexelToLinear', parameters.emissiveMapEncoding) : '', parameters.lightMap ? getTexelDecodingFunction('lightMapTexelToLinear', parameters.lightMapEncoding) : '', getTexelEncodingFunction('linearToOutputTexel', parameters.outputEncoding), parameters.depthPacking ? '#define DEPTH_PACKING ' + parameters.depthPacking : '', '\n'].filter(filterEmptyLine).join('\n');
+  }
+
+  vertexShader = resolveIncludes(vertexShader);
+  vertexShader = replaceLightNums(vertexShader, parameters);
+  vertexShader = replaceClippingPlaneNums(vertexShader, parameters);
+  fragmentShader = resolveIncludes(fragmentShader);
+  fragmentShader = replaceLightNums(fragmentShader, parameters);
+  fragmentShader = replaceClippingPlaneNums(fragmentShader, parameters);
+  vertexShader = unrollLoops(vertexShader);
+  fragmentShader = unrollLoops(fragmentShader);
+
+  if (parameters.isWebGL2 && parameters.isRawShaderMaterial !== true) {
+    // GLSL 3.0 conversion for built-in materials and ShaderMaterial
+    versionString = '#version 300 es\n';
+    prefixVertex = ['#define attribute in', '#define varying out', '#define texture2D texture'].join('\n') + '\n' + prefixVertex;
+    prefixFragment = ['#define varying in', parameters.glslVersion === GLSL3 ? '' : 'out highp vec4 pc_fragColor;', parameters.glslVersion === GLSL3 ? '' : '#define gl_FragColor pc_fragColor', '#define gl_FragDepthEXT gl_FragDepth', '#define texture2D texture', '#define textureCube texture', '#define texture2DProj textureProj', '#define texture2DLodEXT textureLod', '#define texture2DProjLodEXT textureProjLod', '#define textureCubeLodEXT textureLod', '#define texture2DGradEXT textureGrad', '#define texture2DProjGradEXT textureProjGrad', '#define textureCubeGradEXT textureGrad'].join('\n') + '\n' + prefixFragment;
+  }
+
+  const vertexGlsl = versionString + prefixVertex + vertexShader;
+  const fragmentGlsl = versionString + prefixFragment + fragmentShader; // console.log( '*VERTEX*', vertexGlsl );
+  // console.log( '*FRAGMENT*', fragmentGlsl );
+
+  const glVertexShader = WebGLShader(gl, 35633, vertexGlsl);
+  const glFragmentShader = WebGLShader(gl, 35632, fragmentGlsl);
+  gl.attachShader(program, glVertexShader);
+  gl.attachShader(program, glFragmentShader); // Force a particular attribute to index 0.
+
+  if (parameters.index0AttributeName !== undefined) {
+    gl.bindAttribLocation(program, 0, parameters.index0AttributeName);
+  } else if (parameters.morphTargets === true) {
+    // programs with morphTargets displace position out of attribute 0
+    gl.bindAttribLocation(program, 0, 'position');
+  }
+
+  gl.linkProgram(program); // check for link errors
+
+  if (renderer.debug.checkShaderErrors) {
+    const programLog = gl.getProgramInfoLog(program).trim();
+    const vertexLog = gl.getShaderInfoLog(glVertexShader).trim();
+    const fragmentLog = gl.getShaderInfoLog(glFragmentShader).trim();
+    let runnable = true;
+    let haveDiagnostics = true;
+
+    if (gl.getProgramParameter(program, 35714) === false) {
+      runnable = false;
+      const vertexErrors = getShaderErrors(gl, glVertexShader, 'vertex');
+      const fragmentErrors = getShaderErrors(gl, glFragmentShader, 'fragment');
+      console.error('THREE.WebGLProgram: shader error: ', gl.getError(), '35715', gl.getProgramParameter(program, 35715), 'gl.getProgramInfoLog', programLog, vertexErrors, fragmentErrors);
+    } else if (programLog !== '') {
+      console.warn('THREE.WebGLProgram: gl.getProgramInfoLog()', programLog);
+    } else if (vertexLog === '' || fragmentLog === '') {
+      haveDiagnostics = false;
+    }
+
+    if (haveDiagnostics) {
+      this.diagnostics = {
+        runnable: runnable,
+        programLog: programLog,
+        vertexShader: {
+          log: vertexLog,
+          prefix: prefixVertex
+        },
+        fragmentShader: {
+          log: fragmentLog,
+          prefix: prefixFragment
+        }
+      };
+    }
+  } // Clean up
+  // Crashes in iOS9 and iOS10. #18402
+  // gl.detachShader( program, glVertexShader );
+  // gl.detachShader( program, glFragmentShader );
+
+
+  gl.deleteShader(glVertexShader);
+  gl.deleteShader(glFragmentShader); // set up caching for uniform locations
+
+  let cachedUniforms;
+
+  this.getUniforms = function () {
+    if (cachedUniforms === undefined) {
+      cachedUniforms = new WebGLUniforms(gl, program);
+    }
+
+    return cachedUniforms;
+  }; // set up caching for attribute locations
+
+
+  let cachedAttributes;
+
+  this.getAttributes = function () {
+    if (cachedAttributes === undefined) {
+      cachedAttributes = fetchAttributeLocations(gl, program);
+    }
+
+    return cachedAttributes;
+  }; // free resource
+
+
+  this.destroy = function () {
+    bindingStates.releaseStatesOfProgram(this);
+    gl.deleteProgram(program);
+    this.program = undefined;
+  }; //
+
+
+  this.name = parameters.shaderName;
+  this.id = programIdCount++;
+  this.cacheKey = cacheKey;
+  this.usedTimes = 1;
+  this.program = program;
+  this.vertexShader = glVertexShader;
+  this.fragmentShader = glFragmentShader;
+  return this;
+}
+
+function WebGLPrograms(renderer, cubemaps, extensions, capabilities, bindingStates, clipping) {
+  const programs = [];
+  const isWebGL2 = capabilities.isWebGL2;
+  const logarithmicDepthBuffer = capabilities.logarithmicDepthBuffer;
+  const floatVertexTextures = capabilities.floatVertexTextures;
+  const maxVertexUniforms = capabilities.maxVertexUniforms;
+  const vertexTextures = capabilities.vertexTextures;
+  let precision = capabilities.precision;
+  const shaderIDs = {
+    MeshDepthMaterial: 'depth',
+    MeshDistanceMaterial: 'distanceRGBA',
+    MeshNormalMaterial: 'normal',
+    MeshBasicMaterial: 'basic',
+    MeshLambertMaterial: 'lambert',
+    MeshPhongMaterial: 'phong',
+    MeshToonMaterial: 'toon',
+    MeshStandardMaterial: 'physical',
+    MeshPhysicalMaterial: 'physical',
+    MeshMatcapMaterial: 'matcap',
+    LineBasicMaterial: 'basic',
+    LineDashedMaterial: 'dashed',
+    PointsMaterial: 'points',
+    ShadowMaterial: 'shadow',
+    SpriteMaterial: 'sprite'
+  };
+  const parameterNames = ['precision', 'isWebGL2', 'supportsVertexTextures', 'outputEncoding', 'instancing', 'instancingColor', 'map', 'mapEncoding', 'matcap', 'matcapEncoding', 'envMap', 'envMapMode', 'envMapEncoding', 'envMapCubeUV', 'lightMap', 'lightMapEncoding', 'aoMap', 'emissiveMap', 'emissiveMapEncoding', 'bumpMap', 'normalMap', 'objectSpaceNormalMap', 'tangentSpaceNormalMap', 'clearcoatMap', 'clearcoatRoughnessMap', 'clearcoatNormalMap', 'displacementMap', 'specularMap', 'roughnessMap', 'metalnessMap', 'gradientMap', 'alphaMap', 'combine', 'vertexColors', 'vertexTangents', 'vertexUvs', 'uvsVertexOnly', 'fog', 'useFog', 'fogExp2', 'flatShading', 'sizeAttenuation', 'logarithmicDepthBuffer', 'skinning', 'maxBones', 'useVertexTexture', 'morphTargets', 'morphNormals', 'maxMorphTargets', 'maxMorphNormals', 'premultipliedAlpha', 'numDirLights', 'numPointLights', 'numSpotLights', 'numHemiLights', 'numRectAreaLights', 'numDirLightShadows', 'numPointLightShadows', 'numSpotLightShadows', 'shadowMapEnabled', 'shadowMapType', 'toneMapping', 'physicallyCorrectLights', 'alphaTest', 'doubleSided', 'flipSided', 'numClippingPlanes', 'numClipIntersection', 'depthPacking', 'dithering', 'sheen', 'transmissionMap'];
+
+  function getMaxBones(object) {
+    const skeleton = object.skeleton;
+    const bones = skeleton.bones;
+
+    if (floatVertexTextures) {
+      return 1024;
+    } else {
+      // default for when object is not specified
+      // ( for example when prebuilding shader to be used with multiple objects )
+      //
+      //  - leave some extra space for other uniforms
+      //  - limit here is ANGLE's 254 max uniform vectors
+      //    (up to 54 should be safe)
+      const nVertexUniforms = maxVertexUniforms;
+      const nVertexMatrices = Math.floor((nVertexUniforms - 20) / 4);
+      const maxBones = Math.min(nVertexMatrices, bones.length);
+
+      if (maxBones < bones.length) {
+        console.warn('THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.');
+        return 0;
+      }
+
+      return maxBones;
+    }
+  }
+
+  function getTextureEncodingFromMap(map) {
+    let encoding;
+
+    if (map && map.isTexture) {
+      encoding = map.encoding;
+    } else if (map && map.isWebGLRenderTarget) {
+      console.warn('THREE.WebGLPrograms.getTextureEncodingFromMap: don\'t use render targets as textures. Use their .texture property instead.');
+      encoding = map.texture.encoding;
+    } else {
+      encoding = LinearEncoding;
+    }
+
+    return encoding;
+  }
+
+  function getParameters(material, lights, shadows, scene, object) {
+    const fog = scene.fog;
+    const environment = material.isMeshStandardMaterial ? scene.environment : null;
+    const envMap = cubemaps.get(material.envMap || environment);
+    const shaderID = shaderIDs[material.type]; // heuristics to create shader parameters according to lights in the scene
+    // (not to blow over maxLights budget)
+
+    const maxBones = object.isSkinnedMesh ? getMaxBones(object) : 0;
+
+    if (material.precision !== null) {
+      precision = capabilities.getMaxPrecision(material.precision);
+
+      if (precision !== material.precision) {
+        console.warn('THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.');
+      }
+    }
+
+    let vertexShader, fragmentShader;
+
+    if (shaderID) {
+      const shader = ShaderLib[shaderID];
+      vertexShader = shader.vertexShader;
+      fragmentShader = shader.fragmentShader;
+    } else {
+      vertexShader = material.vertexShader;
+      fragmentShader = material.fragmentShader;
+    }
+
+    const currentRenderTarget = renderer.getRenderTarget();
+    const parameters = {
+      isWebGL2: isWebGL2,
+      shaderID: shaderID,
+      shaderName: material.type,
+      vertexShader: vertexShader,
+      fragmentShader: fragmentShader,
+      defines: material.defines,
+      isRawShaderMaterial: material.isRawShaderMaterial === true,
+      glslVersion: material.glslVersion,
+      precision: precision,
+      instancing: object.isInstancedMesh === true,
+      instancingColor: object.isInstancedMesh === true && object.instanceColor !== null,
+      supportsVertexTextures: vertexTextures,
+      outputEncoding: currentRenderTarget !== null ? getTextureEncodingFromMap(currentRenderTarget.texture) : renderer.outputEncoding,
+      map: !!material.map,
+      mapEncoding: getTextureEncodingFromMap(material.map),
+      matcap: !!material.matcap,
+      matcapEncoding: getTextureEncodingFromMap(material.matcap),
+      envMap: !!envMap,
+      envMapMode: envMap && envMap.mapping,
+      envMapEncoding: getTextureEncodingFromMap(envMap),
+      envMapCubeUV: !!envMap && (envMap.mapping === CubeUVReflectionMapping || envMap.mapping === CubeUVRefractionMapping),
+      lightMap: !!material.lightMap,
+      lightMapEncoding: getTextureEncodingFromMap(material.lightMap),
+      aoMap: !!material.aoMap,
+      emissiveMap: !!material.emissiveMap,
+      emissiveMapEncoding: getTextureEncodingFromMap(material.emissiveMap),
+      bumpMap: !!material.bumpMap,
+      normalMap: !!material.normalMap,
+      objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,
+      tangentSpaceNormalMap: material.normalMapType === TangentSpaceNormalMap,
+      clearcoatMap: !!material.clearcoatMap,
+      clearcoatRoughnessMap: !!material.clearcoatRoughnessMap,
+      clearcoatNormalMap: !!material.clearcoatNormalMap,
+      displacementMap: !!material.displacementMap,
+      roughnessMap: !!material.roughnessMap,
+      metalnessMap: !!material.metalnessMap,
+      specularMap: !!material.specularMap,
+      alphaMap: !!material.alphaMap,
+      gradientMap: !!material.gradientMap,
+      sheen: !!material.sheen,
+      transmissionMap: !!material.transmissionMap,
+      combine: material.combine,
+      vertexTangents: material.normalMap && material.vertexTangents,
+      vertexColors: material.vertexColors,
+      vertexUvs: !!material.map || !!material.bumpMap || !!material.normalMap || !!material.specularMap || !!material.alphaMap || !!material.emissiveMap || !!material.roughnessMap || !!material.metalnessMap || !!material.clearcoatMap || !!material.clearcoatRoughnessMap || !!material.clearcoatNormalMap || !!material.displacementMap || !!material.transmissionMap,
+      uvsVertexOnly: !(!!material.map || !!material.bumpMap || !!material.normalMap || !!material.specularMap || !!material.alphaMap || !!material.emissiveMap || !!material.roughnessMap || !!material.metalnessMap || !!material.clearcoatNormalMap || !!material.transmissionMap) && !!material.displacementMap,
+      fog: !!fog,
+      useFog: material.fog,
+      fogExp2: fog && fog.isFogExp2,
+      flatShading: !!material.flatShading,
+      sizeAttenuation: material.sizeAttenuation,
+      logarithmicDepthBuffer: logarithmicDepthBuffer,
+      skinning: material.skinning && maxBones > 0,
+      maxBones: maxBones,
+      useVertexTexture: floatVertexTextures,
+      morphTargets: material.morphTargets,
+      morphNormals: material.morphNormals,
+      maxMorphTargets: renderer.maxMorphTargets,
+      maxMorphNormals: renderer.maxMorphNormals,
+      numDirLights: lights.directional.length,
+      numPointLights: lights.point.length,
+      numSpotLights: lights.spot.length,
+      numRectAreaLights: lights.rectArea.length,
+      numHemiLights: lights.hemi.length,
+      numDirLightShadows: lights.directionalShadowMap.length,
+      numPointLightShadows: lights.pointShadowMap.length,
+      numSpotLightShadows: lights.spotShadowMap.length,
+      numClippingPlanes: clipping.numPlanes,
+      numClipIntersection: clipping.numIntersection,
+      dithering: material.dithering,
+      shadowMapEnabled: renderer.shadowMap.enabled && shadows.length > 0,
+      shadowMapType: renderer.shadowMap.type,
+      toneMapping: material.toneMapped ? renderer.toneMapping : NoToneMapping,
+      physicallyCorrectLights: renderer.physicallyCorrectLights,
+      premultipliedAlpha: material.premultipliedAlpha,
+      alphaTest: material.alphaTest,
+      doubleSided: material.side === DoubleSide,
+      flipSided: material.side === BackSide,
+      depthPacking: material.depthPacking !== undefined ? material.depthPacking : false,
+      index0AttributeName: material.index0AttributeName,
+      extensionDerivatives: material.extensions && material.extensions.derivatives,
+      extensionFragDepth: material.extensions && material.extensions.fragDepth,
+      extensionDrawBuffers: material.extensions && material.extensions.drawBuffers,
+      extensionShaderTextureLOD: material.extensions && material.extensions.shaderTextureLOD,
+      rendererExtensionFragDepth: isWebGL2 || extensions.has('EXT_frag_depth'),
+      rendererExtensionDrawBuffers: isWebGL2 || extensions.has('WEBGL_draw_buffers'),
+      rendererExtensionShaderTextureLod: isWebGL2 || extensions.has('EXT_shader_texture_lod'),
+      customProgramCacheKey: material.customProgramCacheKey()
+    };
+    return parameters;
+  }
+
+  function getProgramCacheKey(parameters) {
+    const array = [];
+
+    if (parameters.shaderID) {
+      array.push(parameters.shaderID);
+    } else {
+      array.push(parameters.fragmentShader);
+      array.push(parameters.vertexShader);
+    }
+
+    if (parameters.defines !== undefined) {
+      for (const name in parameters.defines) {
+        array.push(name);
+        array.push(parameters.defines[name]);
+      }
+    }
+
+    if (parameters.isRawShaderMaterial === false) {
+      for (let i = 0; i < parameterNames.length; i++) {
+        array.push(parameters[parameterNames[i]]);
+      }
+
+      array.push(renderer.outputEncoding);
+      array.push(renderer.gammaFactor);
+    }
+
+    array.push(parameters.customProgramCacheKey);
+    return array.join();
+  }
+
+  function getUniforms(material) {
+    const shaderID = shaderIDs[material.type];
+    let uniforms;
+
+    if (shaderID) {
+      const shader = ShaderLib[shaderID];
+      uniforms = UniformsUtils.clone(shader.uniforms);
+    } else {
+      uniforms = material.uniforms;
+    }
+
+    return uniforms;
+  }
+
+  function acquireProgram(parameters, cacheKey) {
+    let program; // Check if code has been already compiled
+
+    for (let p = 0, pl = programs.length; p < pl; p++) {
+      const preexistingProgram = programs[p];
+
+      if (preexistingProgram.cacheKey === cacheKey) {
+        program = preexistingProgram;
+        ++program.usedTimes;
+        break;
+      }
+    }
+
+    if (program === undefined) {
+      program = new WebGLProgram(renderer, cacheKey, parameters, bindingStates);
+      programs.push(program);
+    }
+
+    return program;
+  }
+
+  function releaseProgram(program) {
+    if (--program.usedTimes === 0) {
+      // Remove from unordered set
+      const i = programs.indexOf(program);
+      programs[i] = programs[programs.length - 1];
+      programs.pop(); // Free WebGL resources
+
+      program.destroy();
+    }
+  }
+
+  return {
+    getParameters: getParameters,
+    getProgramCacheKey: getProgramCacheKey,
+    getUniforms: getUniforms,
+    acquireProgram: acquireProgram,
+    releaseProgram: releaseProgram,
+    // Exposed for resource monitoring & error feedback via renderer.info:
+    programs: programs
+  };
+}
+
+function WebGLProperties() {
+  let properties = new WeakMap();
+
+  function get(object) {
+    let map = properties.get(object);
+
+    if (map === undefined) {
+      map = {};
+      properties.set(object, map);
+    }
+
+    return map;
+  }
+
+  function remove(object) {
+    properties.delete(object);
+  }
+
+  function update(object, key, value) {
+    properties.get(object)[key] = value;
+  }
+
+  function dispose() {
+    properties = new WeakMap();
+  }
+
+  return {
+    get: get,
+    remove: remove,
+    update: update,
+    dispose: dispose
+  };
+}
+
+function painterSortStable(a, b) {
+  if (a.groupOrder !== b.groupOrder) {
+    return a.groupOrder - b.groupOrder;
+  } else if (a.renderOrder !== b.renderOrder) {
+    return a.renderOrder - b.renderOrder;
+  } else if (a.program !== b.program) {
+    return a.program.id - b.program.id;
+  } else if (a.material.id !== b.material.id) {
+    return a.material.id - b.material.id;
+  } else if (a.z !== b.z) {
+    return a.z - b.z;
+  } else {
+    return a.id - b.id;
+  }
+}
+
+function reversePainterSortStable(a, b) {
+  if (a.groupOrder !== b.groupOrder) {
+    return a.groupOrder - b.groupOrder;
+  } else if (a.renderOrder !== b.renderOrder) {
+    return a.renderOrder - b.renderOrder;
+  } else if (a.z !== b.z) {
+    return b.z - a.z;
+  } else {
+    return a.id - b.id;
+  }
+}
+
+function WebGLRenderList(properties) {
+  const renderItems = [];
+  let renderItemsIndex = 0;
+  const opaque = [];
+  const transparent = [];
+  const defaultProgram = {
+    id: -1
+  };
+
+  function init() {
+    renderItemsIndex = 0;
+    opaque.length = 0;
+    transparent.length = 0;
+  }
+
+  function getNextRenderItem(object, geometry, material, groupOrder, z, group) {
+    let renderItem = renderItems[renderItemsIndex];
+    const materialProperties = properties.get(material);
+
+    if (renderItem === undefined) {
+      renderItem = {
+        id: object.id,
+        object: object,
+        geometry: geometry,
+        material: material,
+        program: materialProperties.program || defaultProgram,
+        groupOrder: groupOrder,
+        renderOrder: object.renderOrder,
+        z: z,
+        group: group
+      };
+      renderItems[renderItemsIndex] = renderItem;
+    } else {
+      renderItem.id = object.id;
+      renderItem.object = object;
+      renderItem.geometry = geometry;
+      renderItem.material = material;
+      renderItem.program = materialProperties.program || defaultProgram;
+      renderItem.groupOrder = groupOrder;
+      renderItem.renderOrder = object.renderOrder;
+      renderItem.z = z;
+      renderItem.group = group;
+    }
+
+    renderItemsIndex++;
+    return renderItem;
+  }
+
+  function push(object, geometry, material, groupOrder, z, group) {
+    const renderItem = getNextRenderItem(object, geometry, material, groupOrder, z, group);
+    (material.transparent === true ? transparent : opaque).push(renderItem);
+  }
+
+  function unshift(object, geometry, material, groupOrder, z, group) {
+    const renderItem = getNextRenderItem(object, geometry, material, groupOrder, z, group);
+    (material.transparent === true ? transparent : opaque).unshift(renderItem);
+  }
+
+  function sort(customOpaqueSort, customTransparentSort) {
+    if (opaque.length > 1) opaque.sort(customOpaqueSort || painterSortStable);
+    if (transparent.length > 1) transparent.sort(customTransparentSort || reversePainterSortStable);
+  }
+
+  function finish() {
+    // Clear references from inactive renderItems in the list
+    for (let i = renderItemsIndex, il = renderItems.length; i < il; i++) {
+      const renderItem = renderItems[i];
+      if (renderItem.id === null) break;
+      renderItem.id = null;
+      renderItem.object = null;
+      renderItem.geometry = null;
+      renderItem.material = null;
+      renderItem.program = null;
+      renderItem.group = null;
+    }
+  }
+
+  return {
+    opaque: opaque,
+    transparent: transparent,
+    init: init,
+    push: push,
+    unshift: unshift,
+    finish: finish,
+    sort: sort
+  };
+}
+
+function WebGLRenderLists(properties) {
+  let lists = new WeakMap();
+
+  function get(scene, renderCallDepth) {
+    let list;
+
+    if (lists.has(scene) === false) {
+      list = new WebGLRenderList(properties);
+      lists.set(scene, [list]);
+    } else {
+      if (renderCallDepth >= lists.get(scene).length) {
+        list = new WebGLRenderList(properties);
+        lists.get(scene).push(list);
+      } else {
+        list = lists.get(scene)[renderCallDepth];
+      }
+    }
+
+    return list;
+  }
+
+  function dispose() {
+    lists = new WeakMap();
+  }
+
+  return {
+    get: get,
+    dispose: dispose
+  };
+}
+
+function UniformsCache() {
+  const lights = {};
+  return {
+    get: function (light) {
+      if (lights[light.id] !== undefined) {
+        return lights[light.id];
+      }
+
+      let uniforms;
+
+      switch (light.type) {
+        case 'DirectionalLight':
+          uniforms = {
+            direction: new Vector3(),
+            color: new Color()
+          };
+          break;
+
+        case 'SpotLight':
+          uniforms = {
+            position: new Vector3(),
+            direction: new Vector3(),
+            color: new Color(),
+            distance: 0,
+            coneCos: 0,
+            penumbraCos: 0,
+            decay: 0
+          };
+          break;
+
+        case 'PointLight':
+          uniforms = {
+            position: new Vector3(),
+            color: new Color(),
+            distance: 0,
+            decay: 0
+          };
+          break;
+
+        case 'HemisphereLight':
+          uniforms = {
+            direction: new Vector3(),
+            skyColor: new Color(),
+            groundColor: new Color()
+          };
+          break;
+
+        case 'RectAreaLight':
+          uniforms = {
+            color: new Color(),
+            position: new Vector3(),
+            halfWidth: new Vector3(),
+            halfHeight: new Vector3()
+          };
+          break;
+      }
+
+      lights[light.id] = uniforms;
+      return uniforms;
+    }
+  };
+}
+
+function ShadowUniformsCache() {
+  const lights = {};
+  return {
+    get: function (light) {
+      if (lights[light.id] !== undefined) {
+        return lights[light.id];
+      }
+
+      let uniforms;
+
+      switch (light.type) {
+        case 'DirectionalLight':
+          uniforms = {
+            shadowBias: 0,
+            shadowNormalBias: 0,
+            shadowRadius: 1,
+            shadowMapSize: new Vector2()
+          };
+          break;
+
+        case 'SpotLight':
+          uniforms = {
+            shadowBias: 0,
+            shadowNormalBias: 0,
+            shadowRadius: 1,
+            shadowMapSize: new Vector2()
+          };
+          break;
+
+        case 'PointLight':
+          uniforms = {
+            shadowBias: 0,
+            shadowNormalBias: 0,
+            shadowRadius: 1,
+            shadowMapSize: new Vector2(),
+            shadowCameraNear: 1,
+            shadowCameraFar: 1000
+          };
+          break;
+        // TODO (abelnation): set RectAreaLight shadow uniforms
+      }
+
+      lights[light.id] = uniforms;
+      return uniforms;
+    }
+  };
+}
+
+let nextVersion = 0;
+
+function shadowCastingLightsFirst(lightA, lightB) {
+  return (lightB.castShadow ? 1 : 0) - (lightA.castShadow ? 1 : 0);
+}
+
+function WebGLLights(extensions, capabilities) {
+  const cache = new UniformsCache();
+  const shadowCache = ShadowUniformsCache();
+  const state = {
+    version: 0,
+    hash: {
+      directionalLength: -1,
+      pointLength: -1,
+      spotLength: -1,
+      rectAreaLength: -1,
+      hemiLength: -1,
+      numDirectionalShadows: -1,
+      numPointShadows: -1,
+      numSpotShadows: -1
+    },
+    ambient: [0, 0, 0],
+    probe: [],
+    directional: [],
+    directionalShadow: [],
+    directionalShadowMap: [],
+    directionalShadowMatrix: [],
+    spot: [],
+    spotShadow: [],
+    spotShadowMap: [],
+    spotShadowMatrix: [],
+    rectArea: [],
+    rectAreaLTC1: null,
+    rectAreaLTC2: null,
+    point: [],
+    pointShadow: [],
+    pointShadowMap: [],
+    pointShadowMatrix: [],
+    hemi: []
+  };
+
+  for (let i = 0; i < 9; i++) state.probe.push(new Vector3());
+
+  const vector3 = new Vector3();
+  const matrix4 = new Matrix4();
+  const matrix42 = new Matrix4();
+
+  function setup(lights) {
+    let r = 0,
+        g = 0,
+        b = 0;
+
+    for (let i = 0; i < 9; i++) state.probe[i].set(0, 0, 0);
+
+    let directionalLength = 0;
+    let pointLength = 0;
+    let spotLength = 0;
+    let rectAreaLength = 0;
+    let hemiLength = 0;
+    let numDirectionalShadows = 0;
+    let numPointShadows = 0;
+    let numSpotShadows = 0;
+    lights.sort(shadowCastingLightsFirst);
+
+    for (let i = 0, l = lights.length; i < l; i++) {
+      const light = lights[i];
+      const color = light.color;
+      const intensity = light.intensity;
+      const distance = light.distance;
+      const shadowMap = light.shadow && light.shadow.map ? light.shadow.map.texture : null;
+
+      if (light.isAmbientLight) {
+        r += color.r * intensity;
+        g += color.g * intensity;
+        b += color.b * intensity;
+      } else if (light.isLightProbe) {
+        for (let j = 0; j < 9; j++) {
+          state.probe[j].addScaledVector(light.sh.coefficients[j], intensity);
+        }
+      } else if (light.isDirectionalLight) {
+        const uniforms = cache.get(light);
+        uniforms.color.copy(light.color).multiplyScalar(light.intensity);
+
+        if (light.castShadow) {
+          const shadow = light.shadow;
+          const shadowUniforms = shadowCache.get(light);
+          shadowUniforms.shadowBias = shadow.bias;
+          shadowUniforms.shadowNormalBias = shadow.normalBias;
+          shadowUniforms.shadowRadius = shadow.radius;
+          shadowUniforms.shadowMapSize = shadow.mapSize;
+          state.directionalShadow[directionalLength] = shadowUniforms;
+          state.directionalShadowMap[directionalLength] = shadowMap;
+          state.directionalShadowMatrix[directionalLength] = light.shadow.matrix;
+          numDirectionalShadows++;
+        }
+
+        state.directional[directionalLength] = uniforms;
+        directionalLength++;
+      } else if (light.isSpotLight) {
+        const uniforms = cache.get(light);
+        uniforms.position.setFromMatrixPosition(light.matrixWorld);
+        uniforms.color.copy(color).multiplyScalar(intensity);
+        uniforms.distance = distance;
+        uniforms.coneCos = Math.cos(light.angle);
+        uniforms.penumbraCos = Math.cos(light.angle * (1 - light.penumbra));
+        uniforms.decay = light.decay;
+
+        if (light.castShadow) {
+          const shadow = light.shadow;
+          const shadowUniforms = shadowCache.get(light);
+          shadowUniforms.shadowBias = shadow.bias;
+          shadowUniforms.shadowNormalBias = shadow.normalBias;
+          shadowUniforms.shadowRadius = shadow.radius;
+          shadowUniforms.shadowMapSize = shadow.mapSize;
+          state.spotShadow[spotLength] = shadowUniforms;
+          state.spotShadowMap[spotLength] = shadowMap;
+          state.spotShadowMatrix[spotLength] = light.shadow.matrix;
+          numSpotShadows++;
+        }
+
+        state.spot[spotLength] = uniforms;
+        spotLength++;
+      } else if (light.isRectAreaLight) {
+        const uniforms = cache.get(light); // (a) intensity is the total visible light emitted
+        //uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );
+        // (b) intensity is the brightness of the light
+
+        uniforms.color.copy(color).multiplyScalar(intensity);
+        uniforms.halfWidth.set(light.width * 0.5, 0.0, 0.0);
+        uniforms.halfHeight.set(0.0, light.height * 0.5, 0.0);
+        state.rectArea[rectAreaLength] = uniforms;
+        rectAreaLength++;
+      } else if (light.isPointLight) {
+        const uniforms = cache.get(light);
+        uniforms.color.copy(light.color).multiplyScalar(light.intensity);
+        uniforms.distance = light.distance;
+        uniforms.decay = light.decay;
+
+        if (light.castShadow) {
+          const shadow = light.shadow;
+          const shadowUniforms = shadowCache.get(light);
+          shadowUniforms.shadowBias = shadow.bias;
+          shadowUniforms.shadowNormalBias = shadow.normalBias;
+          shadowUniforms.shadowRadius = shadow.radius;
+          shadowUniforms.shadowMapSize = shadow.mapSize;
+          shadowUniforms.shadowCameraNear = shadow.camera.near;
+          shadowUniforms.shadowCameraFar = shadow.camera.far;
+          state.pointShadow[pointLength] = shadowUniforms;
+          state.pointShadowMap[pointLength] = shadowMap;
+          state.pointShadowMatrix[pointLength] = light.shadow.matrix;
+          numPointShadows++;
+        }
+
+        state.point[pointLength] = uniforms;
+        pointLength++;
+      } else if (light.isHemisphereLight) {
+        const uniforms = cache.get(light);
+        uniforms.skyColor.copy(light.color).multiplyScalar(intensity);
+        uniforms.groundColor.copy(light.groundColor).multiplyScalar(intensity);
+        state.hemi[hemiLength] = uniforms;
+        hemiLength++;
+      }
+    }
+
+    if (rectAreaLength > 0) {
+      if (capabilities.isWebGL2) {
+        // WebGL 2
+        state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
+        state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;
+      } else {
+        // WebGL 1
+        if (extensions.has('OES_texture_float_linear') === true) {
+          state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
+          state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;
+        } else if (extensions.has('OES_texture_half_float_linear') === true) {
+          state.rectAreaLTC1 = UniformsLib.LTC_HALF_1;
+          state.rectAreaLTC2 = UniformsLib.LTC_HALF_2;
+        } else {
+          console.error('THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.');
+        }
+      }
+    }
+
+    state.ambient[0] = r;
+    state.ambient[1] = g;
+    state.ambient[2] = b;
+    const hash = state.hash;
+
+    if (hash.directionalLength !== directionalLength || hash.pointLength !== pointLength || hash.spotLength !== spotLength || hash.rectAreaLength !== rectAreaLength || hash.hemiLength !== hemiLength || hash.numDirectionalShadows !== numDirectionalShadows || hash.numPointShadows !== numPointShadows || hash.numSpotShadows !== numSpotShadows) {
+      state.directional.length = directionalLength;
+      state.spot.length = spotLength;
+      state.rectArea.length = rectAreaLength;
+      state.point.length = pointLength;
+      state.hemi.length = hemiLength;
+      state.directionalShadow.length = numDirectionalShadows;
+      state.directionalShadowMap.length = numDirectionalShadows;
+      state.pointShadow.length = numPointShadows;
+      state.pointShadowMap.length = numPointShadows;
+      state.spotShadow.length = numSpotShadows;
+      state.spotShadowMap.length = numSpotShadows;
+      state.directionalShadowMatrix.length = numDirectionalShadows;
+      state.pointShadowMatrix.length = numPointShadows;
+      state.spotShadowMatrix.length = numSpotShadows;
+      hash.directionalLength = directionalLength;
+      hash.pointLength = pointLength;
+      hash.spotLength = spotLength;
+      hash.rectAreaLength = rectAreaLength;
+      hash.hemiLength = hemiLength;
+      hash.numDirectionalShadows = numDirectionalShadows;
+      hash.numPointShadows = numPointShadows;
+      hash.numSpotShadows = numSpotShadows;
+      state.version = nextVersion++;
+    }
+  }
+
+  function setupView(lights, camera) {
+    let directionalLength = 0;
+    let pointLength = 0;
+    let spotLength = 0;
+    let rectAreaLength = 0;
+    let hemiLength = 0;
+    const viewMatrix = camera.matrixWorldInverse;
+
+    for (let i = 0, l = lights.length; i < l; i++) {
+      const light = lights[i];
+
+      if (light.isDirectionalLight) {
+        const uniforms = state.directional[directionalLength];
+        uniforms.direction.setFromMatrixPosition(light.matrixWorld);
+        vector3.setFromMatrixPosition(light.target.matrixWorld);
+        uniforms.direction.sub(vector3);
+        uniforms.direction.transformDirection(viewMatrix);
+        directionalLength++;
+      } else if (light.isSpotLight) {
+        const uniforms = state.spot[spotLength];
+        uniforms.position.setFromMatrixPosition(light.matrixWorld);
+        uniforms.position.applyMatrix4(viewMatrix);
+        uniforms.direction.setFromMatrixPosition(light.matrixWorld);
+        vector3.setFromMatrixPosition(light.target.matrixWorld);
+        uniforms.direction.sub(vector3);
+        uniforms.direction.transformDirection(viewMatrix);
+        spotLength++;
+      } else if (light.isRectAreaLight) {
+        const uniforms = state.rectArea[rectAreaLength];
+        uniforms.position.setFromMatrixPosition(light.matrixWorld);
+        uniforms.position.applyMatrix4(viewMatrix); // extract local rotation of light to derive width/height half vectors
+
+        matrix42.identity();
+        matrix4.copy(light.matrixWorld);
+        matrix4.premultiply(viewMatrix);
+        matrix42.extractRotation(matrix4);
+        uniforms.halfWidth.set(light.width * 0.5, 0.0, 0.0);
+        uniforms.halfHeight.set(0.0, light.height * 0.5, 0.0);
+        uniforms.halfWidth.applyMatrix4(matrix42);
+        uniforms.halfHeight.applyMatrix4(matrix42);
+        rectAreaLength++;
+      } else if (light.isPointLight) {
+        const uniforms = state.point[pointLength];
+        uniforms.position.setFromMatrixPosition(light.matrixWorld);
+        uniforms.position.applyMatrix4(viewMatrix);
+        pointLength++;
+      } else if (light.isHemisphereLight) {
+        const uniforms = state.hemi[hemiLength];
+        uniforms.direction.setFromMatrixPosition(light.matrixWorld);
+        uniforms.direction.transformDirection(viewMatrix);
+        uniforms.direction.normalize();
+        hemiLength++;
+      }
+    }
+  }
+
+  return {
+    setup: setup,
+    setupView: setupView,
+    state: state
+  };
+}
+
+function WebGLRenderState(extensions, capabilities) {
+  const lights = new WebGLLights(extensions, capabilities);
+  const lightsArray = [];
+  const shadowsArray = [];
+
+  function init() {
+    lightsArray.length = 0;
+    shadowsArray.length = 0;
+  }
+
+  function pushLight(light) {
+    lightsArray.push(light);
+  }
+
+  function pushShadow(shadowLight) {
+    shadowsArray.push(shadowLight);
+  }
+
+  function setupLights() {
+    lights.setup(lightsArray);
+  }
+
+  function setupLightsView(camera) {
+    lights.setupView(lightsArray, camera);
+  }
+
+  const state = {
+    lightsArray: lightsArray,
+    shadowsArray: shadowsArray,
+    lights: lights
+  };
+  return {
+    init: init,
+    state: state,
+    setupLights: setupLights,
+    setupLightsView: setupLightsView,
+    pushLight: pushLight,
+    pushShadow: pushShadow
+  };
+}
+
+function WebGLRenderStates(extensions, capabilities) {
+  let renderStates = new WeakMap();
+
+  function get(scene, renderCallDepth = 0) {
+    let renderState;
+
+    if (renderStates.has(scene) === false) {
+      renderState = new WebGLRenderState(extensions, capabilities);
+      renderStates.set(scene, [renderState]);
+    } else {
+      if (renderCallDepth >= renderStates.get(scene).length) {
+        renderState = new WebGLRenderState(extensions, capabilities);
+        renderStates.get(scene).push(renderState);
+      } else {
+        renderState = renderStates.get(scene)[renderCallDepth];
+      }
+    }
+
+    return renderState;
+  }
+
+  function dispose() {
+    renderStates = new WeakMap();
+  }
+
+  return {
+    get: get,
+    dispose: dispose
+  };
+}
+/**
+ * parameters = {
+ *
+ *  opacity: <float>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>
+ * }
+ */
+
+
+class MeshDepthMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'MeshDepthMaterial';
+    this.depthPacking = BasicDepthPacking;
+    this.skinning = false;
+    this.morphTargets = false;
+    this.map = null;
+    this.alphaMap = null;
+    this.displacementMap = null;
+    this.displacementScale = 1;
+    this.displacementBias = 0;
+    this.wireframe = false;
+    this.wireframeLinewidth = 1;
+    this.fog = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.depthPacking = source.depthPacking;
+    this.skinning = source.skinning;
+    this.morphTargets = source.morphTargets;
+    this.map = source.map;
+    this.alphaMap = source.alphaMap;
+    this.displacementMap = source.displacementMap;
+    this.displacementScale = source.displacementScale;
+    this.displacementBias = source.displacementBias;
+    this.wireframe = source.wireframe;
+    this.wireframeLinewidth = source.wireframeLinewidth;
+    return this;
+  }
+
+}
+
+exports.MeshDepthMaterial = MeshDepthMaterial;
+MeshDepthMaterial.prototype.isMeshDepthMaterial = true;
+/**
+ * parameters = {
+ *
+ *  referencePosition: <float>,
+ *  nearDistance: <float>,
+ *  farDistance: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>
+ *
+ * }
+ */
+
+class MeshDistanceMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'MeshDistanceMaterial';
+    this.referencePosition = new Vector3();
+    this.nearDistance = 1;
+    this.farDistance = 1000;
+    this.skinning = false;
+    this.morphTargets = false;
+    this.map = null;
+    this.alphaMap = null;
+    this.displacementMap = null;
+    this.displacementScale = 1;
+    this.displacementBias = 0;
+    this.fog = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.referencePosition.copy(source.referencePosition);
+    this.nearDistance = source.nearDistance;
+    this.farDistance = source.farDistance;
+    this.skinning = source.skinning;
+    this.morphTargets = source.morphTargets;
+    this.map = source.map;
+    this.alphaMap = source.alphaMap;
+    this.displacementMap = source.displacementMap;
+    this.displacementScale = source.displacementScale;
+    this.displacementBias = source.displacementBias;
+    return this;
+  }
+
+}
+
+exports.MeshDistanceMaterial = MeshDistanceMaterial;
+MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;
+var vsm_frag = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";
+var vsm_vert = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";
+
+function WebGLShadowMap(_renderer, _objects, maxTextureSize) {
+  let _frustum = new Frustum();
+
+  const _shadowMapSize = new Vector2(),
+        _viewportSize = new Vector2(),
+        _viewport = new Vector4(),
+        _depthMaterials = [],
+        _distanceMaterials = [],
+        _materialCache = {};
+
+  const shadowSide = {
+    0: BackSide,
+    1: FrontSide,
+    2: DoubleSide
+  };
+  const shadowMaterialVertical = new ShaderMaterial({
+    defines: {
+      SAMPLE_RATE: 2.0 / 8.0,
+      HALF_SAMPLE_RATE: 1.0 / 8.0
+    },
+    uniforms: {
+      shadow_pass: {
+        value: null
+      },
+      resolution: {
+        value: new Vector2()
+      },
+      radius: {
+        value: 4.0
+      }
+    },
+    vertexShader: vsm_vert,
+    fragmentShader: vsm_frag
+  });
+  const shadowMaterialHorizontal = shadowMaterialVertical.clone();
+  shadowMaterialHorizontal.defines.HORIZONTAL_PASS = 1;
+  const fullScreenTri = new BufferGeometry();
+  fullScreenTri.setAttribute('position', new BufferAttribute(new Float32Array([-1, -1, 0.5, 3, -1, 0.5, -1, 3, 0.5]), 3));
+  const fullScreenMesh = new Mesh(fullScreenTri, shadowMaterialVertical);
+  const scope = this;
+  this.enabled = false;
+  this.autoUpdate = true;
+  this.needsUpdate = false;
+  this.type = PCFShadowMap;
+
+  this.render = function (lights, scene, camera) {
+    if (scope.enabled === false) return;
+    if (scope.autoUpdate === false && scope.needsUpdate === false) return;
+    if (lights.length === 0) return;
+
+    const currentRenderTarget = _renderer.getRenderTarget();
+
+    const activeCubeFace = _renderer.getActiveCubeFace();
+
+    const activeMipmapLevel = _renderer.getActiveMipmapLevel();
+
+    const _state = _renderer.state; // Set GL state for depth map.
+
+    _state.setBlending(NoBlending);
+
+    _state.buffers.color.setClear(1, 1, 1, 1);
+
+    _state.buffers.depth.setTest(true);
+
+    _state.setScissorTest(false); // render depth map
+
+
+    for (let i = 0, il = lights.length; i < il; i++) {
+      const light = lights[i];
+      const shadow = light.shadow;
+
+      if (shadow === undefined) {
+        console.warn('THREE.WebGLShadowMap:', light, 'has no shadow.');
+        continue;
+      }
+
+      if (shadow.autoUpdate === false && shadow.needsUpdate === false) continue;
+
+      _shadowMapSize.copy(shadow.mapSize);
+
+      const shadowFrameExtents = shadow.getFrameExtents();
+
+      _shadowMapSize.multiply(shadowFrameExtents);
+
+      _viewportSize.copy(shadow.mapSize);
+
+      if (_shadowMapSize.x > maxTextureSize || _shadowMapSize.y > maxTextureSize) {
+        if (_shadowMapSize.x > maxTextureSize) {
+          _viewportSize.x = Math.floor(maxTextureSize / shadowFrameExtents.x);
+          _shadowMapSize.x = _viewportSize.x * shadowFrameExtents.x;
+          shadow.mapSize.x = _viewportSize.x;
+        }
+
+        if (_shadowMapSize.y > maxTextureSize) {
+          _viewportSize.y = Math.floor(maxTextureSize / shadowFrameExtents.y);
+          _shadowMapSize.y = _viewportSize.y * shadowFrameExtents.y;
+          shadow.mapSize.y = _viewportSize.y;
+        }
+      }
+
+      if (shadow.map === null && !shadow.isPointLightShadow && this.type === VSMShadowMap) {
+        const pars = {
+          minFilter: LinearFilter,
+          magFilter: LinearFilter,
+          format: RGBAFormat
+        };
+        shadow.map = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
+        shadow.map.texture.name = light.name + '.shadowMap';
+        shadow.mapPass = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
+        shadow.camera.updateProjectionMatrix();
+      }
+
+      if (shadow.map === null) {
+        const pars = {
+          minFilter: NearestFilter,
+          magFilter: NearestFilter,
+          format: RGBAFormat
+        };
+        shadow.map = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
+        shadow.map.texture.name = light.name + '.shadowMap';
+        shadow.camera.updateProjectionMatrix();
+      }
+
+      _renderer.setRenderTarget(shadow.map);
+
+      _renderer.clear();
+
+      const viewportCount = shadow.getViewportCount();
+
+      for (let vp = 0; vp < viewportCount; vp++) {
+        const viewport = shadow.getViewport(vp);
+
+        _viewport.set(_viewportSize.x * viewport.x, _viewportSize.y * viewport.y, _viewportSize.x * viewport.z, _viewportSize.y * viewport.w);
+
+        _state.viewport(_viewport);
+
+        shadow.updateMatrices(light, vp);
+        _frustum = shadow.getFrustum();
+        renderObject(scene, camera, shadow.camera, light, this.type);
+      } // do blur pass for VSM
+
+
+      if (!shadow.isPointLightShadow && this.type === VSMShadowMap) {
+        VSMPass(shadow, camera);
+      }
+
+      shadow.needsUpdate = false;
+    }
+
+    scope.needsUpdate = false;
+
+    _renderer.setRenderTarget(currentRenderTarget, activeCubeFace, activeMipmapLevel);
+  };
+
+  function VSMPass(shadow, camera) {
+    const geometry = _objects.update(fullScreenMesh); // vertical pass
+
+
+    shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture;
+    shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize;
+    shadowMaterialVertical.uniforms.radius.value = shadow.radius;
+
+    _renderer.setRenderTarget(shadow.mapPass);
+
+    _renderer.clear();
+
+    _renderer.renderBufferDirect(camera, null, geometry, shadowMaterialVertical, fullScreenMesh, null); // horizontal pass
+
+
+    shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture;
+    shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize;
+    shadowMaterialHorizontal.uniforms.radius.value = shadow.radius;
+
+    _renderer.setRenderTarget(shadow.map);
+
+    _renderer.clear();
+
+    _renderer.renderBufferDirect(camera, null, geometry, shadowMaterialHorizontal, fullScreenMesh, null);
+  }
+
+  function getDepthMaterialVariant(useMorphing, useSkinning, useInstancing) {
+    const index = useMorphing << 0 | useSkinning << 1 | useInstancing << 2;
+    let material = _depthMaterials[index];
+
+    if (material === undefined) {
+      material = new MeshDepthMaterial({
+        depthPacking: RGBADepthPacking,
+        morphTargets: useMorphing,
+        skinning: useSkinning
+      });
+      _depthMaterials[index] = material;
+    }
+
+    return material;
+  }
+
+  function getDistanceMaterialVariant(useMorphing, useSkinning, useInstancing) {
+    const index = useMorphing << 0 | useSkinning << 1 | useInstancing << 2;
+    let material = _distanceMaterials[index];
+
+    if (material === undefined) {
+      material = new MeshDistanceMaterial({
+        morphTargets: useMorphing,
+        skinning: useSkinning
+      });
+      _distanceMaterials[index] = material;
+    }
+
+    return material;
+  }
+
+  function getDepthMaterial(object, geometry, material, light, shadowCameraNear, shadowCameraFar, type) {
+    let result = null;
+    let getMaterialVariant = getDepthMaterialVariant;
+    let customMaterial = object.customDepthMaterial;
+
+    if (light.isPointLight === true) {
+      getMaterialVariant = getDistanceMaterialVariant;
+      customMaterial = object.customDistanceMaterial;
+    }
+
+    if (customMaterial === undefined) {
+      let useMorphing = false;
+
+      if (material.morphTargets === true) {
+        useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;
+      }
+
+      let useSkinning = false;
+
+      if (object.isSkinnedMesh === true) {
+        if (material.skinning === true) {
+          useSkinning = true;
+        } else {
+          console.warn('THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object);
+        }
+      }
+
+      const useInstancing = object.isInstancedMesh === true;
+      result = getMaterialVariant(useMorphing, useSkinning, useInstancing);
+    } else {
+      result = customMaterial;
+    }
+
+    if (_renderer.localClippingEnabled && material.clipShadows === true && material.clippingPlanes.length !== 0) {
+      // in this case we need a unique material instance reflecting the
+      // appropriate state
+      const keyA = result.uuid,
+            keyB = material.uuid;
+      let materialsForVariant = _materialCache[keyA];
+
+      if (materialsForVariant === undefined) {
+        materialsForVariant = {};
+        _materialCache[keyA] = materialsForVariant;
+      }
+
+      let cachedMaterial = materialsForVariant[keyB];
+
+      if (cachedMaterial === undefined) {
+        cachedMaterial = result.clone();
+        materialsForVariant[keyB] = cachedMaterial;
+      }
+
+      result = cachedMaterial;
+    }
+
+    result.visible = material.visible;
+    result.wireframe = material.wireframe;
+
+    if (type === VSMShadowMap) {
+      result.side = material.shadowSide !== null ? material.shadowSide : material.side;
+    } else {
+      result.side = material.shadowSide !== null ? material.shadowSide : shadowSide[material.side];
+    }
+
+    result.clipShadows = material.clipShadows;
+    result.clippingPlanes = material.clippingPlanes;
+    result.clipIntersection = material.clipIntersection;
+    result.wireframeLinewidth = material.wireframeLinewidth;
+    result.linewidth = material.linewidth;
+
+    if (light.isPointLight === true && result.isMeshDistanceMaterial === true) {
+      result.referencePosition.setFromMatrixPosition(light.matrixWorld);
+      result.nearDistance = shadowCameraNear;
+      result.farDistance = shadowCameraFar;
+    }
+
+    return result;
+  }
+
+  function renderObject(object, camera, shadowCamera, light, type) {
+    if (object.visible === false) return;
+    const visible = object.layers.test(camera.layers);
+
+    if (visible && (object.isMesh || object.isLine || object.isPoints)) {
+      if ((object.castShadow || object.receiveShadow && type === VSMShadowMap) && (!object.frustumCulled || _frustum.intersectsObject(object))) {
+        object.modelViewMatrix.multiplyMatrices(shadowCamera.matrixWorldInverse, object.matrixWorld);
+
+        const geometry = _objects.update(object);
+
+        const material = object.material;
+
+        if (Array.isArray(material)) {
+          const groups = geometry.groups;
+
+          for (let k = 0, kl = groups.length; k < kl; k++) {
+            const group = groups[k];
+            const groupMaterial = material[group.materialIndex];
+
+            if (groupMaterial && groupMaterial.visible) {
+              const depthMaterial = getDepthMaterial(object, geometry, groupMaterial, light, shadowCamera.near, shadowCamera.far, type);
+
+              _renderer.renderBufferDirect(shadowCamera, null, geometry, depthMaterial, object, group);
+            }
+          }
+        } else if (material.visible) {
+          const depthMaterial = getDepthMaterial(object, geometry, material, light, shadowCamera.near, shadowCamera.far, type);
+
+          _renderer.renderBufferDirect(shadowCamera, null, geometry, depthMaterial, object, null);
+        }
+      }
+    }
+
+    const children = object.children;
+
+    for (let i = 0, l = children.length; i < l; i++) {
+      renderObject(children[i], camera, shadowCamera, light, type);
+    }
+  }
+}
+
+function WebGLState(gl, extensions, capabilities) {
+  const isWebGL2 = capabilities.isWebGL2;
+
+  function ColorBuffer() {
+    let locked = false;
+    const color = new Vector4();
+    let currentColorMask = null;
+    const currentColorClear = new Vector4(0, 0, 0, 0);
+    return {
+      setMask: function (colorMask) {
+        if (currentColorMask !== colorMask && !locked) {
+          gl.colorMask(colorMask, colorMask, colorMask, colorMask);
+          currentColorMask = colorMask;
+        }
+      },
+      setLocked: function (lock) {
+        locked = lock;
+      },
+      setClear: function (r, g, b, a, premultipliedAlpha) {
+        if (premultipliedAlpha === true) {
+          r *= a;
+          g *= a;
+          b *= a;
+        }
+
+        color.set(r, g, b, a);
+
+        if (currentColorClear.equals(color) === false) {
+          gl.clearColor(r, g, b, a);
+          currentColorClear.copy(color);
+        }
+      },
+      reset: function () {
+        locked = false;
+        currentColorMask = null;
+        currentColorClear.set(-1, 0, 0, 0); // set to invalid state
+      }
+    };
+  }
+
+  function DepthBuffer() {
+    let locked = false;
+    let currentDepthMask = null;
+    let currentDepthFunc = null;
+    let currentDepthClear = null;
+    return {
+      setTest: function (depthTest) {
+        if (depthTest) {
+          enable(2929);
+        } else {
+          disable(2929);
+        }
+      },
+      setMask: function (depthMask) {
+        if (currentDepthMask !== depthMask && !locked) {
+          gl.depthMask(depthMask);
+          currentDepthMask = depthMask;
+        }
+      },
+      setFunc: function (depthFunc) {
+        if (currentDepthFunc !== depthFunc) {
+          if (depthFunc) {
+            switch (depthFunc) {
+              case NeverDepth:
+                gl.depthFunc(512);
+                break;
+
+              case AlwaysDepth:
+                gl.depthFunc(519);
+                break;
+
+              case LessDepth:
+                gl.depthFunc(513);
+                break;
+
+              case LessEqualDepth:
+                gl.depthFunc(515);
+                break;
+
+              case EqualDepth:
+                gl.depthFunc(514);
+                break;
+
+              case GreaterEqualDepth:
+                gl.depthFunc(518);
+                break;
+
+              case GreaterDepth:
+                gl.depthFunc(516);
+                break;
+
+              case NotEqualDepth:
+                gl.depthFunc(517);
+                break;
+
+              default:
+                gl.depthFunc(515);
+            }
+          } else {
+            gl.depthFunc(515);
+          }
+
+          currentDepthFunc = depthFunc;
+        }
+      },
+      setLocked: function (lock) {
+        locked = lock;
+      },
+      setClear: function (depth) {
+        if (currentDepthClear !== depth) {
+          gl.clearDepth(depth);
+          currentDepthClear = depth;
+        }
+      },
+      reset: function () {
+        locked = false;
+        currentDepthMask = null;
+        currentDepthFunc = null;
+        currentDepthClear = null;
+      }
+    };
+  }
+
+  function StencilBuffer() {
+    let locked = false;
+    let currentStencilMask = null;
+    let currentStencilFunc = null;
+    let currentStencilRef = null;
+    let currentStencilFuncMask = null;
+    let currentStencilFail = null;
+    let currentStencilZFail = null;
+    let currentStencilZPass = null;
+    let currentStencilClear = null;
+    return {
+      setTest: function (stencilTest) {
+        if (!locked) {
+          if (stencilTest) {
+            enable(2960);
+          } else {
+            disable(2960);
+          }
+        }
+      },
+      setMask: function (stencilMask) {
+        if (currentStencilMask !== stencilMask && !locked) {
+          gl.stencilMask(stencilMask);
+          currentStencilMask = stencilMask;
+        }
+      },
+      setFunc: function (stencilFunc, stencilRef, stencilMask) {
+        if (currentStencilFunc !== stencilFunc || currentStencilRef !== stencilRef || currentStencilFuncMask !== stencilMask) {
+          gl.stencilFunc(stencilFunc, stencilRef, stencilMask);
+          currentStencilFunc = stencilFunc;
+          currentStencilRef = stencilRef;
+          currentStencilFuncMask = stencilMask;
+        }
+      },
+      setOp: function (stencilFail, stencilZFail, stencilZPass) {
+        if (currentStencilFail !== stencilFail || currentStencilZFail !== stencilZFail || currentStencilZPass !== stencilZPass) {
+          gl.stencilOp(stencilFail, stencilZFail, stencilZPass);
+          currentStencilFail = stencilFail;
+          currentStencilZFail = stencilZFail;
+          currentStencilZPass = stencilZPass;
+        }
+      },
+      setLocked: function (lock) {
+        locked = lock;
+      },
+      setClear: function (stencil) {
+        if (currentStencilClear !== stencil) {
+          gl.clearStencil(stencil);
+          currentStencilClear = stencil;
+        }
+      },
+      reset: function () {
+        locked = false;
+        currentStencilMask = null;
+        currentStencilFunc = null;
+        currentStencilRef = null;
+        currentStencilFuncMask = null;
+        currentStencilFail = null;
+        currentStencilZFail = null;
+        currentStencilZPass = null;
+        currentStencilClear = null;
+      }
+    };
+  } //
+
+
+  const colorBuffer = new ColorBuffer();
+  const depthBuffer = new DepthBuffer();
+  const stencilBuffer = new StencilBuffer();
+  let enabledCapabilities = {};
+  let currentProgram = null;
+  let currentBlendingEnabled = false;
+  let currentBlending = null;
+  let currentBlendEquation = null;
+  let currentBlendSrc = null;
+  let currentBlendDst = null;
+  let currentBlendEquationAlpha = null;
+  let currentBlendSrcAlpha = null;
+  let currentBlendDstAlpha = null;
+  let currentPremultipledAlpha = false;
+  let currentFlipSided = null;
+  let currentCullFace = null;
+  let currentLineWidth = null;
+  let currentPolygonOffsetFactor = null;
+  let currentPolygonOffsetUnits = null;
+  const maxTextures = gl.getParameter(35661);
+  let lineWidthAvailable = false;
+  let version = 0;
+  const glVersion = gl.getParameter(7938);
+
+  if (glVersion.indexOf('WebGL') !== -1) {
+    version = parseFloat(/^WebGL (\d)/.exec(glVersion)[1]);
+    lineWidthAvailable = version >= 1.0;
+  } else if (glVersion.indexOf('OpenGL ES') !== -1) {
+    version = parseFloat(/^OpenGL ES (\d)/.exec(glVersion)[1]);
+    lineWidthAvailable = version >= 2.0;
+  }
+
+  let currentTextureSlot = null;
+  let currentBoundTextures = {};
+  const currentScissor = new Vector4();
+  const currentViewport = new Vector4();
+
+  function createTexture(type, target, count) {
+    const data = new Uint8Array(4); // 4 is required to match default unpack alignment of 4.
+
+    const texture = gl.createTexture();
+    gl.bindTexture(type, texture);
+    gl.texParameteri(type, 10241, 9728);
+    gl.texParameteri(type, 10240, 9728);
+
+    for (let i = 0; i < count; i++) {
+      gl.texImage2D(target + i, 0, 6408, 1, 1, 0, 6408, 5121, data);
+    }
+
+    return texture;
+  }
+
+  const emptyTextures = {};
+  emptyTextures[3553] = createTexture(3553, 3553, 1);
+  emptyTextures[34067] = createTexture(34067, 34069, 6); // init
+
+  colorBuffer.setClear(0, 0, 0, 1);
+  depthBuffer.setClear(1);
+  stencilBuffer.setClear(0);
+  enable(2929);
+  depthBuffer.setFunc(LessEqualDepth);
+  setFlipSided(false);
+  setCullFace(CullFaceBack);
+  enable(2884);
+  setBlending(NoBlending); //
+
+  function enable(id) {
+    if (enabledCapabilities[id] !== true) {
+      gl.enable(id);
+      enabledCapabilities[id] = true;
+    }
+  }
+
+  function disable(id) {
+    if (enabledCapabilities[id] !== false) {
+      gl.disable(id);
+      enabledCapabilities[id] = false;
+    }
+  }
+
+  function useProgram(program) {
+    if (currentProgram !== program) {
+      gl.useProgram(program);
+      currentProgram = program;
+      return true;
+    }
+
+    return false;
+  }
+
+  const equationToGL = {
+    [AddEquation]: 32774,
+    [SubtractEquation]: 32778,
+    [ReverseSubtractEquation]: 32779
+  };
+
+  if (isWebGL2) {
+    equationToGL[MinEquation] = 32775;
+    equationToGL[MaxEquation] = 32776;
+  } else {
+    const extension = extensions.get('EXT_blend_minmax');
+
+    if (extension !== null) {
+      equationToGL[MinEquation] = extension.MIN_EXT;
+      equationToGL[MaxEquation] = extension.MAX_EXT;
+    }
+  }
+
+  const factorToGL = {
+    [ZeroFactor]: 0,
+    [OneFactor]: 1,
+    [SrcColorFactor]: 768,
+    [SrcAlphaFactor]: 770,
+    [SrcAlphaSaturateFactor]: 776,
+    [DstColorFactor]: 774,
+    [DstAlphaFactor]: 772,
+    [OneMinusSrcColorFactor]: 769,
+    [OneMinusSrcAlphaFactor]: 771,
+    [OneMinusDstColorFactor]: 775,
+    [OneMinusDstAlphaFactor]: 773
+  };
+
+  function setBlending(blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha) {
+    if (blending === NoBlending) {
+      if (currentBlendingEnabled === true) {
+        disable(3042);
+        currentBlendingEnabled = false;
+      }
+
+      return;
+    }
+
+    if (currentBlendingEnabled === false) {
+      enable(3042);
+      currentBlendingEnabled = true;
+    }
+
+    if (blending !== CustomBlending) {
+      if (blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha) {
+        if (currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation) {
+          gl.blendEquation(32774);
+          currentBlendEquation = AddEquation;
+          currentBlendEquationAlpha = AddEquation;
+        }
+
+        if (premultipliedAlpha) {
+          switch (blending) {
+            case NormalBlending:
+              gl.blendFuncSeparate(1, 771, 1, 771);
+              break;
+
+            case AdditiveBlending:
+              gl.blendFunc(1, 1);
+              break;
+
+            case SubtractiveBlending:
+              gl.blendFuncSeparate(0, 0, 769, 771);
+              break;
+
+            case MultiplyBlending:
+              gl.blendFuncSeparate(0, 768, 0, 770);
+              break;
+
+            default:
+              console.error('THREE.WebGLState: Invalid blending: ', blending);
+              break;
+          }
+        } else {
+          switch (blending) {
+            case NormalBlending:
+              gl.blendFuncSeparate(770, 771, 1, 771);
+              break;
+
+            case AdditiveBlending:
+              gl.blendFunc(770, 1);
+              break;
+
+            case SubtractiveBlending:
+              gl.blendFunc(0, 769);
+              break;
+
+            case MultiplyBlending:
+              gl.blendFunc(0, 768);
+              break;
+
+            default:
+              console.error('THREE.WebGLState: Invalid blending: ', blending);
+              break;
+          }
+        }
+
+        currentBlendSrc = null;
+        currentBlendDst = null;
+        currentBlendSrcAlpha = null;
+        currentBlendDstAlpha = null;
+        currentBlending = blending;
+        currentPremultipledAlpha = premultipliedAlpha;
+      }
+
+      return;
+    } // custom blending
+
+
+    blendEquationAlpha = blendEquationAlpha || blendEquation;
+    blendSrcAlpha = blendSrcAlpha || blendSrc;
+    blendDstAlpha = blendDstAlpha || blendDst;
+
+    if (blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha) {
+      gl.blendEquationSeparate(equationToGL[blendEquation], equationToGL[blendEquationAlpha]);
+      currentBlendEquation = blendEquation;
+      currentBlendEquationAlpha = blendEquationAlpha;
+    }
+
+    if (blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha) {
+      gl.blendFuncSeparate(factorToGL[blendSrc], factorToGL[blendDst], factorToGL[blendSrcAlpha], factorToGL[blendDstAlpha]);
+      currentBlendSrc = blendSrc;
+      currentBlendDst = blendDst;
+      currentBlendSrcAlpha = blendSrcAlpha;
+      currentBlendDstAlpha = blendDstAlpha;
+    }
+
+    currentBlending = blending;
+    currentPremultipledAlpha = null;
+  }
+
+  function setMaterial(material, frontFaceCW) {
+    material.side === DoubleSide ? disable(2884) : enable(2884);
+    let flipSided = material.side === BackSide;
+    if (frontFaceCW) flipSided = !flipSided;
+    setFlipSided(flipSided);
+    material.blending === NormalBlending && material.transparent === false ? setBlending(NoBlending) : setBlending(material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha);
+    depthBuffer.setFunc(material.depthFunc);
+    depthBuffer.setTest(material.depthTest);
+    depthBuffer.setMask(material.depthWrite);
+    colorBuffer.setMask(material.colorWrite);
+    const stencilWrite = material.stencilWrite;
+    stencilBuffer.setTest(stencilWrite);
+
+    if (stencilWrite) {
+      stencilBuffer.setMask(material.stencilWriteMask);
+      stencilBuffer.setFunc(material.stencilFunc, material.stencilRef, material.stencilFuncMask);
+      stencilBuffer.setOp(material.stencilFail, material.stencilZFail, material.stencilZPass);
+    }
+
+    setPolygonOffset(material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits);
+  } //
+
+
+  function setFlipSided(flipSided) {
+    if (currentFlipSided !== flipSided) {
+      if (flipSided) {
+        gl.frontFace(2304);
+      } else {
+        gl.frontFace(2305);
+      }
+
+      currentFlipSided = flipSided;
+    }
+  }
+
+  function setCullFace(cullFace) {
+    if (cullFace !== CullFaceNone) {
+      enable(2884);
+
+      if (cullFace !== currentCullFace) {
+        if (cullFace === CullFaceBack) {
+          gl.cullFace(1029);
+        } else if (cullFace === CullFaceFront) {
+          gl.cullFace(1028);
+        } else {
+          gl.cullFace(1032);
+        }
+      }
+    } else {
+      disable(2884);
+    }
+
+    currentCullFace = cullFace;
+  }
+
+  function setLineWidth(width) {
+    if (width !== currentLineWidth) {
+      if (lineWidthAvailable) gl.lineWidth(width);
+      currentLineWidth = width;
+    }
+  }
+
+  function setPolygonOffset(polygonOffset, factor, units) {
+    if (polygonOffset) {
+      enable(32823);
+
+      if (currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units) {
+        gl.polygonOffset(factor, units);
+        currentPolygonOffsetFactor = factor;
+        currentPolygonOffsetUnits = units;
+      }
+    } else {
+      disable(32823);
+    }
+  }
+
+  function setScissorTest(scissorTest) {
+    if (scissorTest) {
+      enable(3089);
+    } else {
+      disable(3089);
+    }
+  } // texture
+
+
+  function activeTexture(webglSlot) {
+    if (webglSlot === undefined) webglSlot = 33984 + maxTextures - 1;
+
+    if (currentTextureSlot !== webglSlot) {
+      gl.activeTexture(webglSlot);
+      currentTextureSlot = webglSlot;
+    }
+  }
+
+  function bindTexture(webglType, webglTexture) {
+    if (currentTextureSlot === null) {
+      activeTexture();
+    }
+
+    let boundTexture = currentBoundTextures[currentTextureSlot];
+
+    if (boundTexture === undefined) {
+      boundTexture = {
+        type: undefined,
+        texture: undefined
+      };
+      currentBoundTextures[currentTextureSlot] = boundTexture;
+    }
+
+    if (boundTexture.type !== webglType || boundTexture.texture !== webglTexture) {
+      gl.bindTexture(webglType, webglTexture || emptyTextures[webglType]);
+      boundTexture.type = webglType;
+      boundTexture.texture = webglTexture;
+    }
+  }
+
+  function unbindTexture() {
+    const boundTexture = currentBoundTextures[currentTextureSlot];
+
+    if (boundTexture !== undefined && boundTexture.type !== undefined) {
+      gl.bindTexture(boundTexture.type, null);
+      boundTexture.type = undefined;
+      boundTexture.texture = undefined;
+    }
+  }
+
+  function compressedTexImage2D() {
+    try {
+      gl.compressedTexImage2D.apply(gl, arguments);
+    } catch (error) {
+      console.error('THREE.WebGLState:', error);
+    }
+  }
+
+  function texImage2D() {
+    try {
+      gl.texImage2D.apply(gl, arguments);
+    } catch (error) {
+      console.error('THREE.WebGLState:', error);
+    }
+  }
+
+  function texImage3D() {
+    try {
+      gl.texImage3D.apply(gl, arguments);
+    } catch (error) {
+      console.error('THREE.WebGLState:', error);
+    }
+  } //
+
+
+  function scissor(scissor) {
+    if (currentScissor.equals(scissor) === false) {
+      gl.scissor(scissor.x, scissor.y, scissor.z, scissor.w);
+      currentScissor.copy(scissor);
+    }
+  }
+
+  function viewport(viewport) {
+    if (currentViewport.equals(viewport) === false) {
+      gl.viewport(viewport.x, viewport.y, viewport.z, viewport.w);
+      currentViewport.copy(viewport);
+    }
+  } //
+
+
+  function reset() {
+    // reset state
+    gl.disable(3042);
+    gl.disable(2884);
+    gl.disable(2929);
+    gl.disable(32823);
+    gl.disable(3089);
+    gl.disable(2960);
+    gl.blendEquation(32774);
+    gl.blendFunc(1, 0);
+    gl.blendFuncSeparate(1, 0, 1, 0);
+    gl.colorMask(true, true, true, true);
+    gl.clearColor(0, 0, 0, 0);
+    gl.depthMask(true);
+    gl.depthFunc(513);
+    gl.clearDepth(1);
+    gl.stencilMask(0xffffffff);
+    gl.stencilFunc(519, 0, 0xffffffff);
+    gl.stencilOp(7680, 7680, 7680);
+    gl.clearStencil(0);
+    gl.cullFace(1029);
+    gl.frontFace(2305);
+    gl.polygonOffset(0, 0);
+    gl.activeTexture(33984);
+    gl.useProgram(null);
+    gl.lineWidth(1);
+    gl.scissor(0, 0, gl.canvas.width, gl.canvas.height);
+    gl.viewport(0, 0, gl.canvas.width, gl.canvas.height); // reset internals
+
+    enabledCapabilities = {};
+    currentTextureSlot = null;
+    currentBoundTextures = {};
+    currentProgram = null;
+    currentBlendingEnabled = false;
+    currentBlending = null;
+    currentBlendEquation = null;
+    currentBlendSrc = null;
+    currentBlendDst = null;
+    currentBlendEquationAlpha = null;
+    currentBlendSrcAlpha = null;
+    currentBlendDstAlpha = null;
+    currentPremultipledAlpha = false;
+    currentFlipSided = null;
+    currentCullFace = null;
+    currentLineWidth = null;
+    currentPolygonOffsetFactor = null;
+    currentPolygonOffsetUnits = null;
+    colorBuffer.reset();
+    depthBuffer.reset();
+    stencilBuffer.reset();
+  }
+
+  return {
+    buffers: {
+      color: colorBuffer,
+      depth: depthBuffer,
+      stencil: stencilBuffer
+    },
+    enable: enable,
+    disable: disable,
+    useProgram: useProgram,
+    setBlending: setBlending,
+    setMaterial: setMaterial,
+    setFlipSided: setFlipSided,
+    setCullFace: setCullFace,
+    setLineWidth: setLineWidth,
+    setPolygonOffset: setPolygonOffset,
+    setScissorTest: setScissorTest,
+    activeTexture: activeTexture,
+    bindTexture: bindTexture,
+    unbindTexture: unbindTexture,
+    compressedTexImage2D: compressedTexImage2D,
+    texImage2D: texImage2D,
+    texImage3D: texImage3D,
+    scissor: scissor,
+    viewport: viewport,
+    reset: reset
+  };
+}
+
+function WebGLTextures(_gl, extensions, state, properties, capabilities, utils, info) {
+  const isWebGL2 = capabilities.isWebGL2;
+  const maxTextures = capabilities.maxTextures;
+  const maxCubemapSize = capabilities.maxCubemapSize;
+  const maxTextureSize = capabilities.maxTextureSize;
+  const maxSamples = capabilities.maxSamples;
+
+  const _videoTextures = new WeakMap();
+
+  let _canvas; // cordova iOS (as of 5.0) still uses UIWebView, which provides OffscreenCanvas,
+  // also OffscreenCanvas.getContext("webgl"), but not OffscreenCanvas.getContext("2d")!
+  // Some implementations may only implement OffscreenCanvas partially (e.g. lacking 2d).
+
+
+  let useOffscreenCanvas = false;
+
+  try {
+    useOffscreenCanvas = typeof OffscreenCanvas !== 'undefined' && new OffscreenCanvas(1, 1).getContext('2d') !== null;
+  } catch (err) {// Ignore any errors
+  }
+
+  function createCanvas(width, height) {
+    // Use OffscreenCanvas when available. Specially needed in web workers
+    return useOffscreenCanvas ? new OffscreenCanvas(width, height) : document.createElementNS('http://www.w3.org/1999/xhtml', 'canvas');
+  }
+
+  function resizeImage(image, needsPowerOfTwo, needsNewCanvas, maxSize) {
+    let scale = 1; // handle case if texture exceeds max size
+
+    if (image.width > maxSize || image.height > maxSize) {
+      scale = maxSize / Math.max(image.width, image.height);
+    } // only perform resize if necessary
+
+
+    if (scale < 1 || needsPowerOfTwo === true) {
+      // only perform resize for certain image types
+      if (typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement || typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap) {
+        const floor = needsPowerOfTwo ? MathUtils.floorPowerOfTwo : Math.floor;
+        const width = floor(scale * image.width);
+        const height = floor(scale * image.height);
+        if (_canvas === undefined) _canvas = createCanvas(width, height); // cube textures can't reuse the same canvas
+
+        const canvas = needsNewCanvas ? createCanvas(width, height) : _canvas;
+        canvas.width = width;
+        canvas.height = height;
+        const context = canvas.getContext('2d');
+        context.drawImage(image, 0, 0, width, height);
+        console.warn('THREE.WebGLRenderer: Texture has been resized from (' + image.width + 'x' + image.height + ') to (' + width + 'x' + height + ').');
+        return canvas;
+      } else {
+        if ('data' in image) {
+          console.warn('THREE.WebGLRenderer: Image in DataTexture is too big (' + image.width + 'x' + image.height + ').');
+        }
+
+        return image;
+      }
+    }
+
+    return image;
+  }
+
+  function isPowerOfTwo(image) {
+    return MathUtils.isPowerOfTwo(image.width) && MathUtils.isPowerOfTwo(image.height);
+  }
+
+  function textureNeedsPowerOfTwo(texture) {
+    if (isWebGL2) return false;
+    return texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping || texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
+  }
+
+  function textureNeedsGenerateMipmaps(texture, supportsMips) {
+    return texture.generateMipmaps && supportsMips && texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
+  }
+
+  function generateMipmap(target, texture, width, height) {
+    _gl.generateMipmap(target);
+
+    const textureProperties = properties.get(texture);
+    textureProperties.__maxMipLevel = Math.log2(Math.max(width, height));
+  }
+
+  function getInternalFormat(internalFormatName, glFormat, glType) {
+    if (isWebGL2 === false) return glFormat;
+
+    if (internalFormatName !== null) {
+      if (_gl[internalFormatName] !== undefined) return _gl[internalFormatName];
+      console.warn('THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format \'' + internalFormatName + '\'');
+    }
+
+    let internalFormat = glFormat;
+
+    if (glFormat === 6403) {
+      if (glType === 5126) internalFormat = 33326;
+      if (glType === 5131) internalFormat = 33325;
+      if (glType === 5121) internalFormat = 33321;
+    }
+
+    if (glFormat === 6407) {
+      if (glType === 5126) internalFormat = 34837;
+      if (glType === 5131) internalFormat = 34843;
+      if (glType === 5121) internalFormat = 32849;
+    }
+
+    if (glFormat === 6408) {
+      if (glType === 5126) internalFormat = 34836;
+      if (glType === 5131) internalFormat = 34842;
+      if (glType === 5121) internalFormat = 32856;
+    }
+
+    if (internalFormat === 33325 || internalFormat === 33326 || internalFormat === 34842 || internalFormat === 34836) {
+      extensions.get('EXT_color_buffer_float');
+    }
+
+    return internalFormat;
+  } // Fallback filters for non-power-of-2 textures
+
+
+  function filterFallback(f) {
+    if (f === NearestFilter || f === NearestMipmapNearestFilter || f === NearestMipmapLinearFilter) {
+      return 9728;
+    }
+
+    return 9729;
+  } //
+
+
+  function onTextureDispose(event) {
+    const texture = event.target;
+    texture.removeEventListener('dispose', onTextureDispose);
+    deallocateTexture(texture);
+
+    if (texture.isVideoTexture) {
+      _videoTextures.delete(texture);
+    }
+
+    info.memory.textures--;
+  }
+
+  function onRenderTargetDispose(event) {
+    const renderTarget = event.target;
+    renderTarget.removeEventListener('dispose', onRenderTargetDispose);
+    deallocateRenderTarget(renderTarget);
+    info.memory.textures--;
+  } //
+
+
+  function deallocateTexture(texture) {
+    const textureProperties = properties.get(texture);
+    if (textureProperties.__webglInit === undefined) return;
+
+    _gl.deleteTexture(textureProperties.__webglTexture);
+
+    properties.remove(texture);
+  }
+
+  function deallocateRenderTarget(renderTarget) {
+    const texture = renderTarget.texture;
+    const renderTargetProperties = properties.get(renderTarget);
+    const textureProperties = properties.get(texture);
+    if (!renderTarget) return;
+
+    if (textureProperties.__webglTexture !== undefined) {
+      _gl.deleteTexture(textureProperties.__webglTexture);
+    }
+
+    if (renderTarget.depthTexture) {
+      renderTarget.depthTexture.dispose();
+    }
+
+    if (renderTarget.isWebGLCubeRenderTarget) {
+      for (let i = 0; i < 6; i++) {
+        _gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer[i]);
+
+        if (renderTargetProperties.__webglDepthbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer[i]);
+      }
+    } else {
+      _gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer);
+
+      if (renderTargetProperties.__webglDepthbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer);
+      if (renderTargetProperties.__webglMultisampledFramebuffer) _gl.deleteFramebuffer(renderTargetProperties.__webglMultisampledFramebuffer);
+      if (renderTargetProperties.__webglColorRenderbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglColorRenderbuffer);
+      if (renderTargetProperties.__webglDepthRenderbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthRenderbuffer);
+    }
+
+    properties.remove(texture);
+    properties.remove(renderTarget);
+  } //
+
+
+  let textureUnits = 0;
+
+  function resetTextureUnits() {
+    textureUnits = 0;
+  }
+
+  function allocateTextureUnit() {
+    const textureUnit = textureUnits;
+
+    if (textureUnit >= maxTextures) {
+      console.warn('THREE.WebGLTextures: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + maxTextures);
+    }
+
+    textureUnits += 1;
+    return textureUnit;
+  } //
+
+
+  function setTexture2D(texture, slot) {
+    const textureProperties = properties.get(texture);
+    if (texture.isVideoTexture) updateVideoTexture(texture);
+
+    if (texture.version > 0 && textureProperties.__version !== texture.version) {
+      const image = texture.image;
+
+      if (image === undefined) {
+        console.warn('THREE.WebGLRenderer: Texture marked for update but image is undefined');
+      } else if (image.complete === false) {
+        console.warn('THREE.WebGLRenderer: Texture marked for update but image is incomplete');
+      } else {
+        uploadTexture(textureProperties, texture, slot);
+        return;
+      }
+    }
+
+    state.activeTexture(33984 + slot);
+    state.bindTexture(3553, textureProperties.__webglTexture);
+  }
+
+  function setTexture2DArray(texture, slot) {
+    const textureProperties = properties.get(texture);
+
+    if (texture.version > 0 && textureProperties.__version !== texture.version) {
+      uploadTexture(textureProperties, texture, slot);
+      return;
+    }
+
+    state.activeTexture(33984 + slot);
+    state.bindTexture(35866, textureProperties.__webglTexture);
+  }
+
+  function setTexture3D(texture, slot) {
+    const textureProperties = properties.get(texture);
+
+    if (texture.version > 0 && textureProperties.__version !== texture.version) {
+      uploadTexture(textureProperties, texture, slot);
+      return;
+    }
+
+    state.activeTexture(33984 + slot);
+    state.bindTexture(32879, textureProperties.__webglTexture);
+  }
+
+  function setTextureCube(texture, slot) {
+    const textureProperties = properties.get(texture);
+
+    if (texture.version > 0 && textureProperties.__version !== texture.version) {
+      uploadCubeTexture(textureProperties, texture, slot);
+      return;
+    }
+
+    state.activeTexture(33984 + slot);
+    state.bindTexture(34067, textureProperties.__webglTexture);
+  }
+
+  const wrappingToGL = {
+    [RepeatWrapping]: 10497,
+    [ClampToEdgeWrapping]: 33071,
+    [MirroredRepeatWrapping]: 33648
+  };
+  const filterToGL = {
+    [NearestFilter]: 9728,
+    [NearestMipmapNearestFilter]: 9984,
+    [NearestMipmapLinearFilter]: 9986,
+    [LinearFilter]: 9729,
+    [LinearMipmapNearestFilter]: 9985,
+    [LinearMipmapLinearFilter]: 9987
+  };
+
+  function setTextureParameters(textureType, texture, supportsMips) {
+    if (supportsMips) {
+      _gl.texParameteri(textureType, 10242, wrappingToGL[texture.wrapS]);
+
+      _gl.texParameteri(textureType, 10243, wrappingToGL[texture.wrapT]);
+
+      if (textureType === 32879 || textureType === 35866) {
+        _gl.texParameteri(textureType, 32882, wrappingToGL[texture.wrapR]);
+      }
+
+      _gl.texParameteri(textureType, 10240, filterToGL[texture.magFilter]);
+
+      _gl.texParameteri(textureType, 10241, filterToGL[texture.minFilter]);
+    } else {
+      _gl.texParameteri(textureType, 10242, 33071);
+
+      _gl.texParameteri(textureType, 10243, 33071);
+
+      if (textureType === 32879 || textureType === 35866) {
+        _gl.texParameteri(textureType, 32882, 33071);
+      }
+
+      if (texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping) {
+        console.warn('THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.');
+      }
+
+      _gl.texParameteri(textureType, 10240, filterFallback(texture.magFilter));
+
+      _gl.texParameteri(textureType, 10241, filterFallback(texture.minFilter));
+
+      if (texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter) {
+        console.warn('THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.');
+      }
+    }
+
+    if (extensions.has('EXT_texture_filter_anisotropic') === true) {
+      const extension = extensions.get('EXT_texture_filter_anisotropic');
+      if (texture.type === FloatType && extensions.has('OES_texture_float_linear') === false) return; // verify extension for WebGL 1 and WebGL 2
+
+      if (isWebGL2 === false && texture.type === HalfFloatType && extensions.has('OES_texture_half_float_linear') === false) return; // verify extension for WebGL 1 only
+
+      if (texture.anisotropy > 1 || properties.get(texture).__currentAnisotropy) {
+        _gl.texParameterf(textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min(texture.anisotropy, capabilities.getMaxAnisotropy()));
+
+        properties.get(texture).__currentAnisotropy = texture.anisotropy;
+      }
+    }
+  }
+
+  function initTexture(textureProperties, texture) {
+    if (textureProperties.__webglInit === undefined) {
+      textureProperties.__webglInit = true;
+      texture.addEventListener('dispose', onTextureDispose);
+      textureProperties.__webglTexture = _gl.createTexture();
+      info.memory.textures++;
+    }
+  }
+
+  function uploadTexture(textureProperties, texture, slot) {
+    let textureType = 3553;
+    if (texture.isDataTexture2DArray) textureType = 35866;
+    if (texture.isDataTexture3D) textureType = 32879;
+    initTexture(textureProperties, texture);
+    state.activeTexture(33984 + slot);
+    state.bindTexture(textureType, textureProperties.__webglTexture);
+
+    _gl.pixelStorei(37440, texture.flipY);
+
+    _gl.pixelStorei(37441, texture.premultiplyAlpha);
+
+    _gl.pixelStorei(3317, texture.unpackAlignment);
+
+    _gl.pixelStorei(37443, 0);
+
+    const needsPowerOfTwo = textureNeedsPowerOfTwo(texture) && isPowerOfTwo(texture.image) === false;
+    const image = resizeImage(texture.image, needsPowerOfTwo, false, maxTextureSize);
+    const supportsMips = isPowerOfTwo(image) || isWebGL2,
+          glFormat = utils.convert(texture.format);
+    let glType = utils.convert(texture.type),
+        glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
+    setTextureParameters(textureType, texture, supportsMips);
+    let mipmap;
+    const mipmaps = texture.mipmaps;
+
+    if (texture.isDepthTexture) {
+      // populate depth texture with dummy data
+      glInternalFormat = 6402;
+
+      if (isWebGL2) {
+        if (texture.type === FloatType) {
+          glInternalFormat = 36012;
+        } else if (texture.type === UnsignedIntType) {
+          glInternalFormat = 33190;
+        } else if (texture.type === UnsignedInt248Type) {
+          glInternalFormat = 35056;
+        } else {
+          glInternalFormat = 33189; // WebGL2 requires sized internalformat for glTexImage2D
+        }
+      } else {
+        if (texture.type === FloatType) {
+          console.error('WebGLRenderer: Floating point depth texture requires WebGL2.');
+        }
+      } // validation checks for WebGL 1
+
+
+      if (texture.format === DepthFormat && glInternalFormat === 6402) {
+        // The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
+        // DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
+        // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
+        if (texture.type !== UnsignedShortType && texture.type !== UnsignedIntType) {
+          console.warn('THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.');
+          texture.type = UnsignedShortType;
+          glType = utils.convert(texture.type);
+        }
+      }
+
+      if (texture.format === DepthStencilFormat && glInternalFormat === 6402) {
+        // Depth stencil textures need the DEPTH_STENCIL internal format
+        // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
+        glInternalFormat = 34041; // The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
+        // DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
+        // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
+
+        if (texture.type !== UnsignedInt248Type) {
+          console.warn('THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.');
+          texture.type = UnsignedInt248Type;
+          glType = utils.convert(texture.type);
+        }
+      } //
+
+
+      state.texImage2D(3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null);
+    } else if (texture.isDataTexture) {
+      // use manually created mipmaps if available
+      // if there are no manual mipmaps
+      // set 0 level mipmap and then use GL to generate other mipmap levels
+      if (mipmaps.length > 0 && supportsMips) {
+        for (let i = 0, il = mipmaps.length; i < il; i++) {
+          mipmap = mipmaps[i];
+          state.texImage2D(3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
+        }
+
+        texture.generateMipmaps = false;
+        textureProperties.__maxMipLevel = mipmaps.length - 1;
+      } else {
+        state.texImage2D(3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data);
+        textureProperties.__maxMipLevel = 0;
+      }
+    } else if (texture.isCompressedTexture) {
+      for (let i = 0, il = mipmaps.length; i < il; i++) {
+        mipmap = mipmaps[i];
+
+        if (texture.format !== RGBAFormat && texture.format !== RGBFormat) {
+          if (glFormat !== null) {
+            state.compressedTexImage2D(3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data);
+          } else {
+            console.warn('THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()');
+          }
+        } else {
+          state.texImage2D(3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
+        }
+      }
+
+      textureProperties.__maxMipLevel = mipmaps.length - 1;
+    } else if (texture.isDataTexture2DArray) {
+      state.texImage3D(35866, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data);
+      textureProperties.__maxMipLevel = 0;
+    } else if (texture.isDataTexture3D) {
+      state.texImage3D(32879, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data);
+      textureProperties.__maxMipLevel = 0;
+    } else {
+      // regular Texture (image, video, canvas)
+      // use manually created mipmaps if available
+      // if there are no manual mipmaps
+      // set 0 level mipmap and then use GL to generate other mipmap levels
+      if (mipmaps.length > 0 && supportsMips) {
+        for (let i = 0, il = mipmaps.length; i < il; i++) {
+          mipmap = mipmaps[i];
+          state.texImage2D(3553, i, glInternalFormat, glFormat, glType, mipmap);
+        }
+
+        texture.generateMipmaps = false;
+        textureProperties.__maxMipLevel = mipmaps.length - 1;
+      } else {
+        state.texImage2D(3553, 0, glInternalFormat, glFormat, glType, image);
+        textureProperties.__maxMipLevel = 0;
+      }
+    }
+
+    if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
+      generateMipmap(textureType, texture, image.width, image.height);
+    }
+
+    textureProperties.__version = texture.version;
+    if (texture.onUpdate) texture.onUpdate(texture);
+  }
+
+  function uploadCubeTexture(textureProperties, texture, slot) {
+    if (texture.image.length !== 6) return;
+    initTexture(textureProperties, texture);
+    state.activeTexture(33984 + slot);
+    state.bindTexture(34067, textureProperties.__webglTexture);
+
+    _gl.pixelStorei(37440, texture.flipY);
+
+    _gl.pixelStorei(37441, texture.premultiplyAlpha);
+
+    _gl.pixelStorei(3317, texture.unpackAlignment);
+
+    _gl.pixelStorei(37443, 0);
+
+    const isCompressed = texture && (texture.isCompressedTexture || texture.image[0].isCompressedTexture);
+    const isDataTexture = texture.image[0] && texture.image[0].isDataTexture;
+    const cubeImage = [];
+
+    for (let i = 0; i < 6; i++) {
+      if (!isCompressed && !isDataTexture) {
+        cubeImage[i] = resizeImage(texture.image[i], false, true, maxCubemapSize);
+      } else {
+        cubeImage[i] = isDataTexture ? texture.image[i].image : texture.image[i];
+      }
+    }
+
+    const image = cubeImage[0],
+          supportsMips = isPowerOfTwo(image) || isWebGL2,
+          glFormat = utils.convert(texture.format),
+          glType = utils.convert(texture.type),
+          glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
+    setTextureParameters(34067, texture, supportsMips);
+    let mipmaps;
+
+    if (isCompressed) {
+      for (let i = 0; i < 6; i++) {
+        mipmaps = cubeImage[i].mipmaps;
+
+        for (let j = 0; j < mipmaps.length; j++) {
+          const mipmap = mipmaps[j];
+
+          if (texture.format !== RGBAFormat && texture.format !== RGBFormat) {
+            if (glFormat !== null) {
+              state.compressedTexImage2D(34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data);
+            } else {
+              console.warn('THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()');
+            }
+          } else {
+            state.texImage2D(34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
+          }
+        }
+      }
+
+      textureProperties.__maxMipLevel = mipmaps.length - 1;
+    } else {
+      mipmaps = texture.mipmaps;
+
+      for (let i = 0; i < 6; i++) {
+        if (isDataTexture) {
+          state.texImage2D(34069 + i, 0, glInternalFormat, cubeImage[i].width, cubeImage[i].height, 0, glFormat, glType, cubeImage[i].data);
+
+          for (let j = 0; j < mipmaps.length; j++) {
+            const mipmap = mipmaps[j];
+            const mipmapImage = mipmap.image[i].image;
+            state.texImage2D(34069 + i, j + 1, glInternalFormat, mipmapImage.width, mipmapImage.height, 0, glFormat, glType, mipmapImage.data);
+          }
+        } else {
+          state.texImage2D(34069 + i, 0, glInternalFormat, glFormat, glType, cubeImage[i]);
+
+          for (let j = 0; j < mipmaps.length; j++) {
+            const mipmap = mipmaps[j];
+            state.texImage2D(34069 + i, j + 1, glInternalFormat, glFormat, glType, mipmap.image[i]);
+          }
+        }
+      }
+
+      textureProperties.__maxMipLevel = mipmaps.length;
+    }
+
+    if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
+      // We assume images for cube map have the same size.
+      generateMipmap(34067, texture, image.width, image.height);
+    }
+
+    textureProperties.__version = texture.version;
+    if (texture.onUpdate) texture.onUpdate(texture);
+  } // Render targets
+  // Setup storage for target texture and bind it to correct framebuffer
+
+
+  function setupFrameBufferTexture(framebuffer, renderTarget, attachment, textureTarget) {
+    const texture = renderTarget.texture;
+    const glFormat = utils.convert(texture.format);
+    const glType = utils.convert(texture.type);
+    const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
+
+    if (textureTarget === 32879 || textureTarget === 35866) {
+      state.texImage3D(textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, renderTarget.depth, 0, glFormat, glType, null);
+    } else {
+      state.texImage2D(textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null);
+    }
+
+    _gl.bindFramebuffer(36160, framebuffer);
+
+    _gl.framebufferTexture2D(36160, attachment, textureTarget, properties.get(texture).__webglTexture, 0);
+
+    _gl.bindFramebuffer(36160, null);
+  } // Setup storage for internal depth/stencil buffers and bind to correct framebuffer
+
+
+  function setupRenderBufferStorage(renderbuffer, renderTarget, isMultisample) {
+    _gl.bindRenderbuffer(36161, renderbuffer);
+
+    if (renderTarget.depthBuffer && !renderTarget.stencilBuffer) {
+      let glInternalFormat = 33189;
+
+      if (isMultisample) {
+        const depthTexture = renderTarget.depthTexture;
+
+        if (depthTexture && depthTexture.isDepthTexture) {
+          if (depthTexture.type === FloatType) {
+            glInternalFormat = 36012;
+          } else if (depthTexture.type === UnsignedIntType) {
+            glInternalFormat = 33190;
+          }
+        }
+
+        const samples = getRenderTargetSamples(renderTarget);
+
+        _gl.renderbufferStorageMultisample(36161, samples, glInternalFormat, renderTarget.width, renderTarget.height);
+      } else {
+        _gl.renderbufferStorage(36161, glInternalFormat, renderTarget.width, renderTarget.height);
+      }
+
+      _gl.framebufferRenderbuffer(36160, 36096, 36161, renderbuffer);
+    } else if (renderTarget.depthBuffer && renderTarget.stencilBuffer) {
+      if (isMultisample) {
+        const samples = getRenderTargetSamples(renderTarget);
+
+        _gl.renderbufferStorageMultisample(36161, samples, 35056, renderTarget.width, renderTarget.height);
+      } else {
+        _gl.renderbufferStorage(36161, 34041, renderTarget.width, renderTarget.height);
+      }
+
+      _gl.framebufferRenderbuffer(36160, 33306, 36161, renderbuffer);
+    } else {
+      const texture = renderTarget.texture;
+      const glFormat = utils.convert(texture.format);
+      const glType = utils.convert(texture.type);
+      const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
+
+      if (isMultisample) {
+        const samples = getRenderTargetSamples(renderTarget);
+
+        _gl.renderbufferStorageMultisample(36161, samples, glInternalFormat, renderTarget.width, renderTarget.height);
+      } else {
+        _gl.renderbufferStorage(36161, glInternalFormat, renderTarget.width, renderTarget.height);
+      }
+    }
+
+    _gl.bindRenderbuffer(36161, null);
+  } // Setup resources for a Depth Texture for a FBO (needs an extension)
+
+
+  function setupDepthTexture(framebuffer, renderTarget) {
+    const isCube = renderTarget && renderTarget.isWebGLCubeRenderTarget;
+    if (isCube) throw new Error('Depth Texture with cube render targets is not supported');
+
+    _gl.bindFramebuffer(36160, framebuffer);
+
+    if (!(renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture)) {
+      throw new Error('renderTarget.depthTexture must be an instance of THREE.DepthTexture');
+    } // upload an empty depth texture with framebuffer size
+
+
+    if (!properties.get(renderTarget.depthTexture).__webglTexture || renderTarget.depthTexture.image.width !== renderTarget.width || renderTarget.depthTexture.image.height !== renderTarget.height) {
+      renderTarget.depthTexture.image.width = renderTarget.width;
+      renderTarget.depthTexture.image.height = renderTarget.height;
+      renderTarget.depthTexture.needsUpdate = true;
+    }
+
+    setTexture2D(renderTarget.depthTexture, 0);
+
+    const webglDepthTexture = properties.get(renderTarget.depthTexture).__webglTexture;
+
+    if (renderTarget.depthTexture.format === DepthFormat) {
+      _gl.framebufferTexture2D(36160, 36096, 3553, webglDepthTexture, 0);
+    } else if (renderTarget.depthTexture.format === DepthStencilFormat) {
+      _gl.framebufferTexture2D(36160, 33306, 3553, webglDepthTexture, 0);
+    } else {
+      throw new Error('Unknown depthTexture format');
+    }
+  } // Setup GL resources for a non-texture depth buffer
+
+
+  function setupDepthRenderbuffer(renderTarget) {
+    const renderTargetProperties = properties.get(renderTarget);
+    const isCube = renderTarget.isWebGLCubeRenderTarget === true;
+
+    if (renderTarget.depthTexture) {
+      if (isCube) throw new Error('target.depthTexture not supported in Cube render targets');
+      setupDepthTexture(renderTargetProperties.__webglFramebuffer, renderTarget);
+    } else {
+      if (isCube) {
+        renderTargetProperties.__webglDepthbuffer = [];
+
+        for (let i = 0; i < 6; i++) {
+          _gl.bindFramebuffer(36160, renderTargetProperties.__webglFramebuffer[i]);
+
+          renderTargetProperties.__webglDepthbuffer[i] = _gl.createRenderbuffer();
+          setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer[i], renderTarget, false);
+        }
+      } else {
+        _gl.bindFramebuffer(36160, renderTargetProperties.__webglFramebuffer);
+
+        renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
+        setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer, renderTarget, false);
+      }
+    }
+
+    _gl.bindFramebuffer(36160, null);
+  } // Set up GL resources for the render target
+
+
+  function setupRenderTarget(renderTarget) {
+    const texture = renderTarget.texture;
+    const renderTargetProperties = properties.get(renderTarget);
+    const textureProperties = properties.get(texture);
+    renderTarget.addEventListener('dispose', onRenderTargetDispose);
+    textureProperties.__webglTexture = _gl.createTexture();
+    info.memory.textures++;
+    const isCube = renderTarget.isWebGLCubeRenderTarget === true;
+    const isMultisample = renderTarget.isWebGLMultisampleRenderTarget === true;
+    const isRenderTarget3D = texture.isDataTexture3D || texture.isDataTexture2DArray;
+    const supportsMips = isPowerOfTwo(renderTarget) || isWebGL2; // Handles WebGL2 RGBFormat fallback - #18858
+
+    if (isWebGL2 && texture.format === RGBFormat && (texture.type === FloatType || texture.type === HalfFloatType)) {
+      texture.format = RGBAFormat;
+      console.warn('THREE.WebGLRenderer: Rendering to textures with RGB format is not supported. Using RGBA format instead.');
+    } // Setup framebuffer
+
+
+    if (isCube) {
+      renderTargetProperties.__webglFramebuffer = [];
+
+      for (let i = 0; i < 6; i++) {
+        renderTargetProperties.__webglFramebuffer[i] = _gl.createFramebuffer();
+      }
+    } else {
+      renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();
+
+      if (isMultisample) {
+        if (isWebGL2) {
+          renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer();
+          renderTargetProperties.__webglColorRenderbuffer = _gl.createRenderbuffer();
+
+          _gl.bindRenderbuffer(36161, renderTargetProperties.__webglColorRenderbuffer);
+
+          const glFormat = utils.convert(texture.format);
+          const glType = utils.convert(texture.type);
+          const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
+          const samples = getRenderTargetSamples(renderTarget);
+
+          _gl.renderbufferStorageMultisample(36161, samples, glInternalFormat, renderTarget.width, renderTarget.height);
+
+          _gl.bindFramebuffer(36160, renderTargetProperties.__webglMultisampledFramebuffer);
+
+          _gl.framebufferRenderbuffer(36160, 36064, 36161, renderTargetProperties.__webglColorRenderbuffer);
+
+          _gl.bindRenderbuffer(36161, null);
+
+          if (renderTarget.depthBuffer) {
+            renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer();
+            setupRenderBufferStorage(renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true);
+          }
+
+          _gl.bindFramebuffer(36160, null);
+        } else {
+          console.warn('THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.');
+        }
+      }
+    } // Setup color buffer
+
+
+    if (isCube) {
+      state.bindTexture(34067, textureProperties.__webglTexture);
+      setTextureParameters(34067, texture, supportsMips);
+
+      for (let i = 0; i < 6; i++) {
+        setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer[i], renderTarget, 36064, 34069 + i);
+      }
+
+      if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
+        generateMipmap(34067, texture, renderTarget.width, renderTarget.height);
+      }
+
+      state.bindTexture(34067, null);
+    } else {
+      let glTextureType = 3553;
+
+      if (isRenderTarget3D) {
+        // Render targets containing layers, i.e: Texture 3D and 2d arrays
+        if (isWebGL2) {
+          const isTexture3D = texture.isDataTexture3D;
+          glTextureType = isTexture3D ? 32879 : 35866;
+        } else {
+          console.warn('THREE.DataTexture3D and THREE.DataTexture2DArray only supported with WebGL2.');
+        }
+      }
+
+      state.bindTexture(glTextureType, textureProperties.__webglTexture);
+      setTextureParameters(glTextureType, texture, supportsMips);
+      setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer, renderTarget, 36064, glTextureType);
+
+      if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
+        generateMipmap(3553, texture, renderTarget.width, renderTarget.height);
+      }
+
+      state.bindTexture(3553, null);
+    } // Setup depth and stencil buffers
+
+
+    if (renderTarget.depthBuffer) {
+      setupDepthRenderbuffer(renderTarget);
+    }
+  }
+
+  function updateRenderTargetMipmap(renderTarget) {
+    const texture = renderTarget.texture;
+    const supportsMips = isPowerOfTwo(renderTarget) || isWebGL2;
+
+    if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
+      const target = renderTarget.isWebGLCubeRenderTarget ? 34067 : 3553;
+
+      const webglTexture = properties.get(texture).__webglTexture;
+
+      state.bindTexture(target, webglTexture);
+      generateMipmap(target, texture, renderTarget.width, renderTarget.height);
+      state.bindTexture(target, null);
+    }
+  }
+
+  function updateMultisampleRenderTarget(renderTarget) {
+    if (renderTarget.isWebGLMultisampleRenderTarget) {
+      if (isWebGL2) {
+        const renderTargetProperties = properties.get(renderTarget);
+
+        _gl.bindFramebuffer(36008, renderTargetProperties.__webglMultisampledFramebuffer);
+
+        _gl.bindFramebuffer(36009, renderTargetProperties.__webglFramebuffer);
+
+        const width = renderTarget.width;
+        const height = renderTarget.height;
+        let mask = 16384;
+        if (renderTarget.depthBuffer) mask |= 256;
+        if (renderTarget.stencilBuffer) mask |= 1024;
+
+        _gl.blitFramebuffer(0, 0, width, height, 0, 0, width, height, mask, 9728);
+
+        _gl.bindFramebuffer(36160, renderTargetProperties.__webglMultisampledFramebuffer); // see #18905
+
+      } else {
+        console.warn('THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.');
+      }
+    }
+  }
+
+  function getRenderTargetSamples(renderTarget) {
+    return isWebGL2 && renderTarget.isWebGLMultisampleRenderTarget ? Math.min(maxSamples, renderTarget.samples) : 0;
+  }
+
+  function updateVideoTexture(texture) {
+    const frame = info.render.frame; // Check the last frame we updated the VideoTexture
+
+    if (_videoTextures.get(texture) !== frame) {
+      _videoTextures.set(texture, frame);
+
+      texture.update();
+    }
+  } // backwards compatibility
+
+
+  let warnedTexture2D = false;
+  let warnedTextureCube = false;
+
+  function safeSetTexture2D(texture, slot) {
+    if (texture && texture.isWebGLRenderTarget) {
+      if (warnedTexture2D === false) {
+        console.warn('THREE.WebGLTextures.safeSetTexture2D: don\'t use render targets as textures. Use their .texture property instead.');
+        warnedTexture2D = true;
+      }
+
+      texture = texture.texture;
+    }
+
+    setTexture2D(texture, slot);
+  }
+
+  function safeSetTextureCube(texture, slot) {
+    if (texture && texture.isWebGLCubeRenderTarget) {
+      if (warnedTextureCube === false) {
+        console.warn('THREE.WebGLTextures.safeSetTextureCube: don\'t use cube render targets as textures. Use their .texture property instead.');
+        warnedTextureCube = true;
+      }
+
+      texture = texture.texture;
+    }
+
+    setTextureCube(texture, slot);
+  } //
+
+
+  this.allocateTextureUnit = allocateTextureUnit;
+  this.resetTextureUnits = resetTextureUnits;
+  this.setTexture2D = setTexture2D;
+  this.setTexture2DArray = setTexture2DArray;
+  this.setTexture3D = setTexture3D;
+  this.setTextureCube = setTextureCube;
+  this.setupRenderTarget = setupRenderTarget;
+  this.updateRenderTargetMipmap = updateRenderTargetMipmap;
+  this.updateMultisampleRenderTarget = updateMultisampleRenderTarget;
+  this.safeSetTexture2D = safeSetTexture2D;
+  this.safeSetTextureCube = safeSetTextureCube;
+}
+
+function WebGLUtils(gl, extensions, capabilities) {
+  const isWebGL2 = capabilities.isWebGL2;
+
+  function convert(p) {
+    let extension;
+    if (p === UnsignedByteType) return 5121;
+    if (p === UnsignedShort4444Type) return 32819;
+    if (p === UnsignedShort5551Type) return 32820;
+    if (p === UnsignedShort565Type) return 33635;
+    if (p === ByteType) return 5120;
+    if (p === ShortType) return 5122;
+    if (p === UnsignedShortType) return 5123;
+    if (p === IntType) return 5124;
+    if (p === UnsignedIntType) return 5125;
+    if (p === FloatType) return 5126;
+
+    if (p === HalfFloatType) {
+      if (isWebGL2) return 5131;
+      extension = extensions.get('OES_texture_half_float');
+
+      if (extension !== null) {
+        return extension.HALF_FLOAT_OES;
+      } else {
+        return null;
+      }
+    }
+
+    if (p === AlphaFormat) return 6406;
+    if (p === RGBFormat) return 6407;
+    if (p === RGBAFormat) return 6408;
+    if (p === LuminanceFormat) return 6409;
+    if (p === LuminanceAlphaFormat) return 6410;
+    if (p === DepthFormat) return 6402;
+    if (p === DepthStencilFormat) return 34041;
+    if (p === RedFormat) return 6403; // WebGL2 formats.
+
+    if (p === RedIntegerFormat) return 36244;
+    if (p === RGFormat) return 33319;
+    if (p === RGIntegerFormat) return 33320;
+    if (p === RGBIntegerFormat) return 36248;
+    if (p === RGBAIntegerFormat) return 36249;
+
+    if (p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format) {
+      extension = extensions.get('WEBGL_compressed_texture_s3tc');
+
+      if (extension !== null) {
+        if (p === RGB_S3TC_DXT1_Format) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
+        if (p === RGBA_S3TC_DXT1_Format) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
+        if (p === RGBA_S3TC_DXT3_Format) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
+        if (p === RGBA_S3TC_DXT5_Format) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
+      } else {
+        return null;
+      }
+    }
+
+    if (p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format) {
+      extension = extensions.get('WEBGL_compressed_texture_pvrtc');
+
+      if (extension !== null) {
+        if (p === RGB_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
+        if (p === RGB_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
+        if (p === RGBA_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
+        if (p === RGBA_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
+      } else {
+        return null;
+      }
+    }
+
+    if (p === RGB_ETC1_Format) {
+      extension = extensions.get('WEBGL_compressed_texture_etc1');
+
+      if (extension !== null) {
+        return extension.COMPRESSED_RGB_ETC1_WEBGL;
+      } else {
+        return null;
+      }
+    }
+
+    if (p === RGB_ETC2_Format || p === RGBA_ETC2_EAC_Format) {
+      extension = extensions.get('WEBGL_compressed_texture_etc');
+
+      if (extension !== null) {
+        if (p === RGB_ETC2_Format) return extension.COMPRESSED_RGB8_ETC2;
+        if (p === RGBA_ETC2_EAC_Format) return extension.COMPRESSED_RGBA8_ETC2_EAC;
+      }
+    }
+
+    if (p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format || p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format || p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format || p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format || p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format || p === SRGB8_ALPHA8_ASTC_4x4_Format || p === SRGB8_ALPHA8_ASTC_5x4_Format || p === SRGB8_ALPHA8_ASTC_5x5_Format || p === SRGB8_ALPHA8_ASTC_6x5_Format || p === SRGB8_ALPHA8_ASTC_6x6_Format || p === SRGB8_ALPHA8_ASTC_8x5_Format || p === SRGB8_ALPHA8_ASTC_8x6_Format || p === SRGB8_ALPHA8_ASTC_8x8_Format || p === SRGB8_ALPHA8_ASTC_10x5_Format || p === SRGB8_ALPHA8_ASTC_10x6_Format || p === SRGB8_ALPHA8_ASTC_10x8_Format || p === SRGB8_ALPHA8_ASTC_10x10_Format || p === SRGB8_ALPHA8_ASTC_12x10_Format || p === SRGB8_ALPHA8_ASTC_12x12_Format) {
+      extension = extensions.get('WEBGL_compressed_texture_astc');
+
+      if (extension !== null) {
+        // TODO Complete?
+        return p;
+      } else {
+        return null;
+      }
+    }
+
+    if (p === RGBA_BPTC_Format) {
+      extension = extensions.get('EXT_texture_compression_bptc');
+
+      if (extension !== null) {
+        // TODO Complete?
+        return p;
+      } else {
+        return null;
+      }
+    }
+
+    if (p === UnsignedInt248Type) {
+      if (isWebGL2) return 34042;
+      extension = extensions.get('WEBGL_depth_texture');
+
+      if (extension !== null) {
+        return extension.UNSIGNED_INT_24_8_WEBGL;
+      } else {
+        return null;
+      }
+    }
+  }
+
+  return {
+    convert: convert
+  };
+}
+
+function ArrayCamera(array = []) {
+  PerspectiveCamera.call(this);
+  this.cameras = array;
+}
+
+ArrayCamera.prototype = Object.assign(Object.create(PerspectiveCamera.prototype), {
+  constructor: ArrayCamera,
+  isArrayCamera: true
+});
+
+class Group extends Object3D {
+  constructor() {
+    super();
+    this.type = 'Group';
+  }
+
+}
+
+exports.Group = Group;
+Group.prototype.isGroup = true;
+
+function WebXRController() {
+  this._targetRay = null;
+  this._grip = null;
+  this._hand = null;
+}
+
+Object.assign(WebXRController.prototype, {
+  constructor: WebXRController,
+  getHandSpace: function () {
+    if (this._hand === null) {
+      this._hand = new Group();
+      this._hand.matrixAutoUpdate = false;
+      this._hand.visible = false;
+      this._hand.joints = {};
+      this._hand.inputState = {
+        pinching: false
+      };
+    }
+
+    return this._hand;
+  },
+  getTargetRaySpace: function () {
+    if (this._targetRay === null) {
+      this._targetRay = new Group();
+      this._targetRay.matrixAutoUpdate = false;
+      this._targetRay.visible = false;
+    }
+
+    return this._targetRay;
+  },
+  getGripSpace: function () {
+    if (this._grip === null) {
+      this._grip = new Group();
+      this._grip.matrixAutoUpdate = false;
+      this._grip.visible = false;
+    }
+
+    return this._grip;
+  },
+  dispatchEvent: function (event) {
+    if (this._targetRay !== null) {
+      this._targetRay.dispatchEvent(event);
+    }
+
+    if (this._grip !== null) {
+      this._grip.dispatchEvent(event);
+    }
+
+    if (this._hand !== null) {
+      this._hand.dispatchEvent(event);
+    }
+
+    return this;
+  },
+  disconnect: function (inputSource) {
+    this.dispatchEvent({
+      type: 'disconnected',
+      data: inputSource
+    });
+
+    if (this._targetRay !== null) {
+      this._targetRay.visible = false;
+    }
+
+    if (this._grip !== null) {
+      this._grip.visible = false;
+    }
+
+    if (this._hand !== null) {
+      this._hand.visible = false;
+    }
+
+    return this;
+  },
+  update: function (inputSource, frame, referenceSpace) {
+    let inputPose = null;
+    let gripPose = null;
+    let handPose = null;
+    const targetRay = this._targetRay;
+    const grip = this._grip;
+    const hand = this._hand;
+
+    if (inputSource && frame.session.visibilityState !== 'visible-blurred') {
+      if (hand && inputSource.hand) {
+        handPose = true;
+
+        for (const inputjoint of inputSource.hand.values()) {
+          // Update the joints groups with the XRJoint poses
+          const jointPose = frame.getJointPose(inputjoint, referenceSpace);
+
+          if (hand.joints[inputjoint.jointName] === undefined) {
+            // The transform of this joint will be updated with the joint pose on each frame
+            const joint = new Group();
+            joint.matrixAutoUpdate = false;
+            joint.visible = false;
+            hand.joints[inputjoint.jointName] = joint; // ??
+
+            hand.add(joint);
+          }
+
+          const joint = hand.joints[inputjoint.jointName];
+
+          if (jointPose !== null) {
+            joint.matrix.fromArray(jointPose.transform.matrix);
+            joint.matrix.decompose(joint.position, joint.rotation, joint.scale);
+            joint.jointRadius = jointPose.radius;
+          }
+
+          joint.visible = jointPose !== null;
+        } // Custom events
+        // Check pinchz
+
+
+        const indexTip = hand.joints['index-finger-tip'];
+        const thumbTip = hand.joints['thumb-tip'];
+        const distance = indexTip.position.distanceTo(thumbTip.position);
+        const distanceToPinch = 0.02;
+        const threshold = 0.005;
+
+        if (hand.inputState.pinching && distance > distanceToPinch + threshold) {
+          hand.inputState.pinching = false;
+          this.dispatchEvent({
+            type: 'pinchend',
+            handedness: inputSource.handedness,
+            target: this
+          });
+        } else if (!hand.inputState.pinching && distance <= distanceToPinch - threshold) {
+          hand.inputState.pinching = true;
+          this.dispatchEvent({
+            type: 'pinchstart',
+            handedness: inputSource.handedness,
+            target: this
+          });
+        }
+      } else {
+        if (targetRay !== null) {
+          inputPose = frame.getPose(inputSource.targetRaySpace, referenceSpace);
+
+          if (inputPose !== null) {
+            targetRay.matrix.fromArray(inputPose.transform.matrix);
+            targetRay.matrix.decompose(targetRay.position, targetRay.rotation, targetRay.scale);
+          }
+        }
+
+        if (grip !== null && inputSource.gripSpace) {
+          gripPose = frame.getPose(inputSource.gripSpace, referenceSpace);
+
+          if (gripPose !== null) {
+            grip.matrix.fromArray(gripPose.transform.matrix);
+            grip.matrix.decompose(grip.position, grip.rotation, grip.scale);
+          }
+        }
+      }
+    }
+
+    if (targetRay !== null) {
+      targetRay.visible = inputPose !== null;
+    }
+
+    if (grip !== null) {
+      grip.visible = gripPose !== null;
+    }
+
+    if (hand !== null) {
+      hand.visible = handPose !== null;
+    }
+
+    return this;
+  }
+});
+
+function WebXRManager(renderer, gl) {
+  const scope = this;
+  let session = null;
+  let framebufferScaleFactor = 1.0;
+  let referenceSpace = null;
+  let referenceSpaceType = 'local-floor';
+  let pose = null;
+  const controllers = [];
+  const inputSourcesMap = new Map(); //
+
+  const cameraL = new PerspectiveCamera();
+  cameraL.layers.enable(1);
+  cameraL.viewport = new Vector4();
+  const cameraR = new PerspectiveCamera();
+  cameraR.layers.enable(2);
+  cameraR.viewport = new Vector4();
+  const cameras = [cameraL, cameraR];
+  const cameraVR = new ArrayCamera();
+  cameraVR.layers.enable(1);
+  cameraVR.layers.enable(2);
+  let _currentDepthNear = null;
+  let _currentDepthFar = null; //
+
+  this.enabled = false;
+  this.isPresenting = false;
+
+  this.getController = function (index) {
+    let controller = controllers[index];
+
+    if (controller === undefined) {
+      controller = new WebXRController();
+      controllers[index] = controller;
+    }
+
+    return controller.getTargetRaySpace();
+  };
+
+  this.getControllerGrip = function (index) {
+    let controller = controllers[index];
+
+    if (controller === undefined) {
+      controller = new WebXRController();
+      controllers[index] = controller;
+    }
+
+    return controller.getGripSpace();
+  };
+
+  this.getHand = function (index) {
+    let controller = controllers[index];
+
+    if (controller === undefined) {
+      controller = new WebXRController();
+      controllers[index] = controller;
+    }
+
+    return controller.getHandSpace();
+  }; //
+
+
+  function onSessionEvent(event) {
+    const controller = inputSourcesMap.get(event.inputSource);
+
+    if (controller) {
+      controller.dispatchEvent({
+        type: event.type,
+        data: event.inputSource
+      });
+    }
+  }
+
+  function onSessionEnd() {
+    inputSourcesMap.forEach(function (controller, inputSource) {
+      controller.disconnect(inputSource);
+    });
+    inputSourcesMap.clear();
+    _currentDepthNear = null;
+    _currentDepthFar = null; //
+
+    renderer.setFramebuffer(null);
+    renderer.setRenderTarget(renderer.getRenderTarget()); // Hack #15830
+
+    animation.stop();
+    scope.isPresenting = false;
+    scope.dispatchEvent({
+      type: 'sessionend'
+    });
+  }
+
+  this.setFramebufferScaleFactor = function (value) {
+    framebufferScaleFactor = value;
+
+    if (scope.isPresenting === true) {
+      console.warn('THREE.WebXRManager: Cannot change framebuffer scale while presenting.');
+    }
+  };
+
+  this.setReferenceSpaceType = function (value) {
+    referenceSpaceType = value;
+
+    if (scope.isPresenting === true) {
+      console.warn('THREE.WebXRManager: Cannot change reference space type while presenting.');
+    }
+  };
+
+  this.getReferenceSpace = function () {
+    return referenceSpace;
+  };
+
+  this.getSession = function () {
+    return session;
+  };
+
+  this.setSession = async function (value) {
+    session = value;
+
+    if (session !== null) {
+      session.addEventListener('select', onSessionEvent);
+      session.addEventListener('selectstart', onSessionEvent);
+      session.addEventListener('selectend', onSessionEvent);
+      session.addEventListener('squeeze', onSessionEvent);
+      session.addEventListener('squeezestart', onSessionEvent);
+      session.addEventListener('squeezeend', onSessionEvent);
+      session.addEventListener('end', onSessionEnd);
+      session.addEventListener('inputsourceschange', onInputSourcesChange);
+      const attributes = gl.getContextAttributes();
+
+      if (attributes.xrCompatible !== true) {
+        await gl.makeXRCompatible();
+      }
+
+      const layerInit = {
+        antialias: attributes.antialias,
+        alpha: attributes.alpha,
+        depth: attributes.depth,
+        stencil: attributes.stencil,
+        framebufferScaleFactor: framebufferScaleFactor
+      }; // eslint-disable-next-line no-undef
+
+      const baseLayer = new XRWebGLLayer(session, gl, layerInit);
+      session.updateRenderState({
+        baseLayer: baseLayer
+      });
+      referenceSpace = await session.requestReferenceSpace(referenceSpaceType);
+      animation.setContext(session);
+      animation.start();
+      scope.isPresenting = true;
+      scope.dispatchEvent({
+        type: 'sessionstart'
+      });
+    }
+  };
+
+  function onInputSourcesChange(event) {
+    const inputSources = session.inputSources; // Assign inputSources to available controllers
+
+    for (let i = 0; i < controllers.length; i++) {
+      inputSourcesMap.set(inputSources[i], controllers[i]);
+    } // Notify disconnected
+
+
+    for (let i = 0; i < event.removed.length; i++) {
+      const inputSource = event.removed[i];
+      const controller = inputSourcesMap.get(inputSource);
+
+      if (controller) {
+        controller.dispatchEvent({
+          type: 'disconnected',
+          data: inputSource
+        });
+        inputSourcesMap.delete(inputSource);
+      }
+    } // Notify connected
+
+
+    for (let i = 0; i < event.added.length; i++) {
+      const inputSource = event.added[i];
+      const controller = inputSourcesMap.get(inputSource);
+
+      if (controller) {
+        controller.dispatchEvent({
+          type: 'connected',
+          data: inputSource
+        });
+      }
+    }
+  } //
+
+
+  const cameraLPos = new Vector3();
+  const cameraRPos = new Vector3();
+  /**
+   * Assumes 2 cameras that are parallel and share an X-axis, and that
+   * the cameras' projection and world matrices have already been set.
+   * And that near and far planes are identical for both cameras.
+   * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765
+   */
+
+  function setProjectionFromUnion(camera, cameraL, cameraR) {
+    cameraLPos.setFromMatrixPosition(cameraL.matrixWorld);
+    cameraRPos.setFromMatrixPosition(cameraR.matrixWorld);
+    const ipd = cameraLPos.distanceTo(cameraRPos);
+    const projL = cameraL.projectionMatrix.elements;
+    const projR = cameraR.projectionMatrix.elements; // VR systems will have identical far and near planes, and
+    // most likely identical top and bottom frustum extents.
+    // Use the left camera for these values.
+
+    const near = projL[14] / (projL[10] - 1);
+    const far = projL[14] / (projL[10] + 1);
+    const topFov = (projL[9] + 1) / projL[5];
+    const bottomFov = (projL[9] - 1) / projL[5];
+    const leftFov = (projL[8] - 1) / projL[0];
+    const rightFov = (projR[8] + 1) / projR[0];
+    const left = near * leftFov;
+    const right = near * rightFov; // Calculate the new camera's position offset from the
+    // left camera. xOffset should be roughly half `ipd`.
+
+    const zOffset = ipd / (-leftFov + rightFov);
+    const xOffset = zOffset * -leftFov; // TODO: Better way to apply this offset?
+
+    cameraL.matrixWorld.decompose(camera.position, camera.quaternion, camera.scale);
+    camera.translateX(xOffset);
+    camera.translateZ(zOffset);
+    camera.matrixWorld.compose(camera.position, camera.quaternion, camera.scale);
+    camera.matrixWorldInverse.copy(camera.matrixWorld).invert(); // Find the union of the frustum values of the cameras and scale
+    // the values so that the near plane's position does not change in world space,
+    // although must now be relative to the new union camera.
+
+    const near2 = near + zOffset;
+    const far2 = far + zOffset;
+    const left2 = left - xOffset;
+    const right2 = right + (ipd - xOffset);
+    const top2 = topFov * far / far2 * near2;
+    const bottom2 = bottomFov * far / far2 * near2;
+    camera.projectionMatrix.makePerspective(left2, right2, top2, bottom2, near2, far2);
+  }
+
+  function updateCamera(camera, parent) {
+    if (parent === null) {
+      camera.matrixWorld.copy(camera.matrix);
+    } else {
+      camera.matrixWorld.multiplyMatrices(parent.matrixWorld, camera.matrix);
+    }
+
+    camera.matrixWorldInverse.copy(camera.matrixWorld).invert();
+  }
+
+  this.getCamera = function (camera) {
+    cameraVR.near = cameraR.near = cameraL.near = camera.near;
+    cameraVR.far = cameraR.far = cameraL.far = camera.far;
+
+    if (_currentDepthNear !== cameraVR.near || _currentDepthFar !== cameraVR.far) {
+      // Note that the new renderState won't apply until the next frame. See #18320
+      session.updateRenderState({
+        depthNear: cameraVR.near,
+        depthFar: cameraVR.far
+      });
+      _currentDepthNear = cameraVR.near;
+      _currentDepthFar = cameraVR.far;
+    }
+
+    const parent = camera.parent;
+    const cameras = cameraVR.cameras;
+    updateCamera(cameraVR, parent);
+
+    for (let i = 0; i < cameras.length; i++) {
+      updateCamera(cameras[i], parent);
+    } // update camera and its children
+
+
+    camera.matrixWorld.copy(cameraVR.matrixWorld);
+    camera.matrix.copy(cameraVR.matrix);
+    camera.matrix.decompose(camera.position, camera.quaternion, camera.scale);
+    const children = camera.children;
+
+    for (let i = 0, l = children.length; i < l; i++) {
+      children[i].updateMatrixWorld(true);
+    } // update projection matrix for proper view frustum culling
+
+
+    if (cameras.length === 2) {
+      setProjectionFromUnion(cameraVR, cameraL, cameraR);
+    } else {
+      // assume single camera setup (AR)
+      cameraVR.projectionMatrix.copy(cameraL.projectionMatrix);
+    }
+
+    return cameraVR;
+  }; // Animation Loop
+
+
+  let onAnimationFrameCallback = null;
+
+  function onAnimationFrame(time, frame) {
+    pose = frame.getViewerPose(referenceSpace);
+
+    if (pose !== null) {
+      const views = pose.views;
+      const baseLayer = session.renderState.baseLayer;
+      renderer.setFramebuffer(baseLayer.framebuffer);
+      let cameraVRNeedsUpdate = false; // check if it's necessary to rebuild cameraVR's camera list
+
+      if (views.length !== cameraVR.cameras.length) {
+        cameraVR.cameras.length = 0;
+        cameraVRNeedsUpdate = true;
+      }
+
+      for (let i = 0; i < views.length; i++) {
+        const view = views[i];
+        const viewport = baseLayer.getViewport(view);
+        const camera = cameras[i];
+        camera.matrix.fromArray(view.transform.matrix);
+        camera.projectionMatrix.fromArray(view.projectionMatrix);
+        camera.viewport.set(viewport.x, viewport.y, viewport.width, viewport.height);
+
+        if (i === 0) {
+          cameraVR.matrix.copy(camera.matrix);
+        }
+
+        if (cameraVRNeedsUpdate === true) {
+          cameraVR.cameras.push(camera);
+        }
+      }
+    } //
+
+
+    const inputSources = session.inputSources;
+
+    for (let i = 0; i < controllers.length; i++) {
+      const controller = controllers[i];
+      const inputSource = inputSources[i];
+      controller.update(inputSource, frame, referenceSpace);
+    }
+
+    if (onAnimationFrameCallback) onAnimationFrameCallback(time, frame);
+  }
+
+  const animation = new WebGLAnimation();
+  animation.setAnimationLoop(onAnimationFrame);
+
+  this.setAnimationLoop = function (callback) {
+    onAnimationFrameCallback = callback;
+  };
+
+  this.dispose = function () {};
+}
+
+Object.assign(WebXRManager.prototype, EventDispatcher.prototype);
+
+function WebGLMaterials(properties) {
+  function refreshFogUniforms(uniforms, fog) {
+    uniforms.fogColor.value.copy(fog.color);
+
+    if (fog.isFog) {
+      uniforms.fogNear.value = fog.near;
+      uniforms.fogFar.value = fog.far;
+    } else if (fog.isFogExp2) {
+      uniforms.fogDensity.value = fog.density;
+    }
+  }
+
+  function refreshMaterialUniforms(uniforms, material, pixelRatio, height) {
+    if (material.isMeshBasicMaterial) {
+      refreshUniformsCommon(uniforms, material);
+    } else if (material.isMeshLambertMaterial) {
+      refreshUniformsCommon(uniforms, material);
+      refreshUniformsLambert(uniforms, material);
+    } else if (material.isMeshToonMaterial) {
+      refreshUniformsCommon(uniforms, material);
+      refreshUniformsToon(uniforms, material);
+    } else if (material.isMeshPhongMaterial) {
+      refreshUniformsCommon(uniforms, material);
+      refreshUniformsPhong(uniforms, material);
+    } else if (material.isMeshStandardMaterial) {
+      refreshUniformsCommon(uniforms, material);
+
+      if (material.isMeshPhysicalMaterial) {
+        refreshUniformsPhysical(uniforms, material);
+      } else {
+        refreshUniformsStandard(uniforms, material);
+      }
+    } else if (material.isMeshMatcapMaterial) {
+      refreshUniformsCommon(uniforms, material);
+      refreshUniformsMatcap(uniforms, material);
+    } else if (material.isMeshDepthMaterial) {
+      refreshUniformsCommon(uniforms, material);
+      refreshUniformsDepth(uniforms, material);
+    } else if (material.isMeshDistanceMaterial) {
+      refreshUniformsCommon(uniforms, material);
+      refreshUniformsDistance(uniforms, material);
+    } else if (material.isMeshNormalMaterial) {
+      refreshUniformsCommon(uniforms, material);
+      refreshUniformsNormal(uniforms, material);
+    } else if (material.isLineBasicMaterial) {
+      refreshUniformsLine(uniforms, material);
+
+      if (material.isLineDashedMaterial) {
+        refreshUniformsDash(uniforms, material);
+      }
+    } else if (material.isPointsMaterial) {
+      refreshUniformsPoints(uniforms, material, pixelRatio, height);
+    } else if (material.isSpriteMaterial) {
+      refreshUniformsSprites(uniforms, material);
+    } else if (material.isShadowMaterial) {
+      uniforms.color.value.copy(material.color);
+      uniforms.opacity.value = material.opacity;
+    } else if (material.isShaderMaterial) {
+      material.uniformsNeedUpdate = false; // #15581
+    }
+  }
+
+  function refreshUniformsCommon(uniforms, material) {
+    uniforms.opacity.value = material.opacity;
+
+    if (material.color) {
+      uniforms.diffuse.value.copy(material.color);
+    }
+
+    if (material.emissive) {
+      uniforms.emissive.value.copy(material.emissive).multiplyScalar(material.emissiveIntensity);
+    }
+
+    if (material.map) {
+      uniforms.map.value = material.map;
+    }
+
+    if (material.alphaMap) {
+      uniforms.alphaMap.value = material.alphaMap;
+    }
+
+    if (material.specularMap) {
+      uniforms.specularMap.value = material.specularMap;
+    }
+
+    const envMap = properties.get(material).envMap;
+
+    if (envMap) {
+      uniforms.envMap.value = envMap;
+      uniforms.flipEnvMap.value = envMap.isCubeTexture && envMap._needsFlipEnvMap ? -1 : 1;
+      uniforms.reflectivity.value = material.reflectivity;
+      uniforms.refractionRatio.value = material.refractionRatio;
+
+      const maxMipLevel = properties.get(envMap).__maxMipLevel;
+
+      if (maxMipLevel !== undefined) {
+        uniforms.maxMipLevel.value = maxMipLevel;
+      }
+    }
+
+    if (material.lightMap) {
+      uniforms.lightMap.value = material.lightMap;
+      uniforms.lightMapIntensity.value = material.lightMapIntensity;
+    }
+
+    if (material.aoMap) {
+      uniforms.aoMap.value = material.aoMap;
+      uniforms.aoMapIntensity.value = material.aoMapIntensity;
+    } // uv repeat and offset setting priorities
+    // 1. color map
+    // 2. specular map
+    // 3. displacementMap map
+    // 4. normal map
+    // 5. bump map
+    // 6. roughnessMap map
+    // 7. metalnessMap map
+    // 8. alphaMap map
+    // 9. emissiveMap map
+    // 10. clearcoat map
+    // 11. clearcoat normal map
+    // 12. clearcoat roughnessMap map
+
+
+    let uvScaleMap;
+
+    if (material.map) {
+      uvScaleMap = material.map;
+    } else if (material.specularMap) {
+      uvScaleMap = material.specularMap;
+    } else if (material.displacementMap) {
+      uvScaleMap = material.displacementMap;
+    } else if (material.normalMap) {
+      uvScaleMap = material.normalMap;
+    } else if (material.bumpMap) {
+      uvScaleMap = material.bumpMap;
+    } else if (material.roughnessMap) {
+      uvScaleMap = material.roughnessMap;
+    } else if (material.metalnessMap) {
+      uvScaleMap = material.metalnessMap;
+    } else if (material.alphaMap) {
+      uvScaleMap = material.alphaMap;
+    } else if (material.emissiveMap) {
+      uvScaleMap = material.emissiveMap;
+    } else if (material.clearcoatMap) {
+      uvScaleMap = material.clearcoatMap;
+    } else if (material.clearcoatNormalMap) {
+      uvScaleMap = material.clearcoatNormalMap;
+    } else if (material.clearcoatRoughnessMap) {
+      uvScaleMap = material.clearcoatRoughnessMap;
+    }
+
+    if (uvScaleMap !== undefined) {
+      // backwards compatibility
+      if (uvScaleMap.isWebGLRenderTarget) {
+        uvScaleMap = uvScaleMap.texture;
+      }
+
+      if (uvScaleMap.matrixAutoUpdate === true) {
+        uvScaleMap.updateMatrix();
+      }
+
+      uniforms.uvTransform.value.copy(uvScaleMap.matrix);
+    } // uv repeat and offset setting priorities for uv2
+    // 1. ao map
+    // 2. light map
+
+
+    let uv2ScaleMap;
+
+    if (material.aoMap) {
+      uv2ScaleMap = material.aoMap;
+    } else if (material.lightMap) {
+      uv2ScaleMap = material.lightMap;
+    }
+
+    if (uv2ScaleMap !== undefined) {
+      // backwards compatibility
+      if (uv2ScaleMap.isWebGLRenderTarget) {
+        uv2ScaleMap = uv2ScaleMap.texture;
+      }
+
+      if (uv2ScaleMap.matrixAutoUpdate === true) {
+        uv2ScaleMap.updateMatrix();
+      }
+
+      uniforms.uv2Transform.value.copy(uv2ScaleMap.matrix);
+    }
+  }
+
+  function refreshUniformsLine(uniforms, material) {
+    uniforms.diffuse.value.copy(material.color);
+    uniforms.opacity.value = material.opacity;
+  }
+
+  function refreshUniformsDash(uniforms, material) {
+    uniforms.dashSize.value = material.dashSize;
+    uniforms.totalSize.value = material.dashSize + material.gapSize;
+    uniforms.scale.value = material.scale;
+  }
+
+  function refreshUniformsPoints(uniforms, material, pixelRatio, height) {
+    uniforms.diffuse.value.copy(material.color);
+    uniforms.opacity.value = material.opacity;
+    uniforms.size.value = material.size * pixelRatio;
+    uniforms.scale.value = height * 0.5;
+
+    if (material.map) {
+      uniforms.map.value = material.map;
+    }
+
+    if (material.alphaMap) {
+      uniforms.alphaMap.value = material.alphaMap;
+    } // uv repeat and offset setting priorities
+    // 1. color map
+    // 2. alpha map
+
+
+    let uvScaleMap;
+
+    if (material.map) {
+      uvScaleMap = material.map;
+    } else if (material.alphaMap) {
+      uvScaleMap = material.alphaMap;
+    }
+
+    if (uvScaleMap !== undefined) {
+      if (uvScaleMap.matrixAutoUpdate === true) {
+        uvScaleMap.updateMatrix();
+      }
+
+      uniforms.uvTransform.value.copy(uvScaleMap.matrix);
+    }
+  }
+
+  function refreshUniformsSprites(uniforms, material) {
+    uniforms.diffuse.value.copy(material.color);
+    uniforms.opacity.value = material.opacity;
+    uniforms.rotation.value = material.rotation;
+
+    if (material.map) {
+      uniforms.map.value = material.map;
+    }
+
+    if (material.alphaMap) {
+      uniforms.alphaMap.value = material.alphaMap;
+    } // uv repeat and offset setting priorities
+    // 1. color map
+    // 2. alpha map
+
+
+    let uvScaleMap;
+
+    if (material.map) {
+      uvScaleMap = material.map;
+    } else if (material.alphaMap) {
+      uvScaleMap = material.alphaMap;
+    }
+
+    if (uvScaleMap !== undefined) {
+      if (uvScaleMap.matrixAutoUpdate === true) {
+        uvScaleMap.updateMatrix();
+      }
+
+      uniforms.uvTransform.value.copy(uvScaleMap.matrix);
+    }
+  }
+
+  function refreshUniformsLambert(uniforms, material) {
+    if (material.emissiveMap) {
+      uniforms.emissiveMap.value = material.emissiveMap;
+    }
+  }
+
+  function refreshUniformsPhong(uniforms, material) {
+    uniforms.specular.value.copy(material.specular);
+    uniforms.shininess.value = Math.max(material.shininess, 1e-4); // to prevent pow( 0.0, 0.0 )
+
+    if (material.emissiveMap) {
+      uniforms.emissiveMap.value = material.emissiveMap;
+    }
+
+    if (material.bumpMap) {
+      uniforms.bumpMap.value = material.bumpMap;
+      uniforms.bumpScale.value = material.bumpScale;
+      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
+    }
+
+    if (material.normalMap) {
+      uniforms.normalMap.value = material.normalMap;
+      uniforms.normalScale.value.copy(material.normalScale);
+      if (material.side === BackSide) uniforms.normalScale.value.negate();
+    }
+
+    if (material.displacementMap) {
+      uniforms.displacementMap.value = material.displacementMap;
+      uniforms.displacementScale.value = material.displacementScale;
+      uniforms.displacementBias.value = material.displacementBias;
+    }
+  }
+
+  function refreshUniformsToon(uniforms, material) {
+    if (material.gradientMap) {
+      uniforms.gradientMap.value = material.gradientMap;
+    }
+
+    if (material.emissiveMap) {
+      uniforms.emissiveMap.value = material.emissiveMap;
+    }
+
+    if (material.bumpMap) {
+      uniforms.bumpMap.value = material.bumpMap;
+      uniforms.bumpScale.value = material.bumpScale;
+      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
+    }
+
+    if (material.normalMap) {
+      uniforms.normalMap.value = material.normalMap;
+      uniforms.normalScale.value.copy(material.normalScale);
+      if (material.side === BackSide) uniforms.normalScale.value.negate();
+    }
+
+    if (material.displacementMap) {
+      uniforms.displacementMap.value = material.displacementMap;
+      uniforms.displacementScale.value = material.displacementScale;
+      uniforms.displacementBias.value = material.displacementBias;
+    }
+  }
+
+  function refreshUniformsStandard(uniforms, material) {
+    uniforms.roughness.value = material.roughness;
+    uniforms.metalness.value = material.metalness;
+
+    if (material.roughnessMap) {
+      uniforms.roughnessMap.value = material.roughnessMap;
+    }
+
+    if (material.metalnessMap) {
+      uniforms.metalnessMap.value = material.metalnessMap;
+    }
+
+    if (material.emissiveMap) {
+      uniforms.emissiveMap.value = material.emissiveMap;
+    }
+
+    if (material.bumpMap) {
+      uniforms.bumpMap.value = material.bumpMap;
+      uniforms.bumpScale.value = material.bumpScale;
+      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
+    }
+
+    if (material.normalMap) {
+      uniforms.normalMap.value = material.normalMap;
+      uniforms.normalScale.value.copy(material.normalScale);
+      if (material.side === BackSide) uniforms.normalScale.value.negate();
+    }
+
+    if (material.displacementMap) {
+      uniforms.displacementMap.value = material.displacementMap;
+      uniforms.displacementScale.value = material.displacementScale;
+      uniforms.displacementBias.value = material.displacementBias;
+    }
+
+    const envMap = properties.get(material).envMap;
+
+    if (envMap) {
+      //uniforms.envMap.value = material.envMap; // part of uniforms common
+      uniforms.envMapIntensity.value = material.envMapIntensity;
+    }
+  }
+
+  function refreshUniformsPhysical(uniforms, material) {
+    refreshUniformsStandard(uniforms, material);
+    uniforms.reflectivity.value = material.reflectivity; // also part of uniforms common
+
+    uniforms.clearcoat.value = material.clearcoat;
+    uniforms.clearcoatRoughness.value = material.clearcoatRoughness;
+    if (material.sheen) uniforms.sheen.value.copy(material.sheen);
+
+    if (material.clearcoatMap) {
+      uniforms.clearcoatMap.value = material.clearcoatMap;
+    }
+
+    if (material.clearcoatRoughnessMap) {
+      uniforms.clearcoatRoughnessMap.value = material.clearcoatRoughnessMap;
+    }
+
+    if (material.clearcoatNormalMap) {
+      uniforms.clearcoatNormalScale.value.copy(material.clearcoatNormalScale);
+      uniforms.clearcoatNormalMap.value = material.clearcoatNormalMap;
+
+      if (material.side === BackSide) {
+        uniforms.clearcoatNormalScale.value.negate();
+      }
+    }
+
+    uniforms.transmission.value = material.transmission;
+
+    if (material.transmissionMap) {
+      uniforms.transmissionMap.value = material.transmissionMap;
+    }
+  }
+
+  function refreshUniformsMatcap(uniforms, material) {
+    if (material.matcap) {
+      uniforms.matcap.value = material.matcap;
+    }
+
+    if (material.bumpMap) {
+      uniforms.bumpMap.value = material.bumpMap;
+      uniforms.bumpScale.value = material.bumpScale;
+      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
+    }
+
+    if (material.normalMap) {
+      uniforms.normalMap.value = material.normalMap;
+      uniforms.normalScale.value.copy(material.normalScale);
+      if (material.side === BackSide) uniforms.normalScale.value.negate();
+    }
+
+    if (material.displacementMap) {
+      uniforms.displacementMap.value = material.displacementMap;
+      uniforms.displacementScale.value = material.displacementScale;
+      uniforms.displacementBias.value = material.displacementBias;
+    }
+  }
+
+  function refreshUniformsDepth(uniforms, material) {
+    if (material.displacementMap) {
+      uniforms.displacementMap.value = material.displacementMap;
+      uniforms.displacementScale.value = material.displacementScale;
+      uniforms.displacementBias.value = material.displacementBias;
+    }
+  }
+
+  function refreshUniformsDistance(uniforms, material) {
+    if (material.displacementMap) {
+      uniforms.displacementMap.value = material.displacementMap;
+      uniforms.displacementScale.value = material.displacementScale;
+      uniforms.displacementBias.value = material.displacementBias;
+    }
+
+    uniforms.referencePosition.value.copy(material.referencePosition);
+    uniforms.nearDistance.value = material.nearDistance;
+    uniforms.farDistance.value = material.farDistance;
+  }
+
+  function refreshUniformsNormal(uniforms, material) {
+    if (material.bumpMap) {
+      uniforms.bumpMap.value = material.bumpMap;
+      uniforms.bumpScale.value = material.bumpScale;
+      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
+    }
+
+    if (material.normalMap) {
+      uniforms.normalMap.value = material.normalMap;
+      uniforms.normalScale.value.copy(material.normalScale);
+      if (material.side === BackSide) uniforms.normalScale.value.negate();
+    }
+
+    if (material.displacementMap) {
+      uniforms.displacementMap.value = material.displacementMap;
+      uniforms.displacementScale.value = material.displacementScale;
+      uniforms.displacementBias.value = material.displacementBias;
+    }
+  }
+
+  return {
+    refreshFogUniforms: refreshFogUniforms,
+    refreshMaterialUniforms: refreshMaterialUniforms
+  };
+}
+
+function createCanvasElement() {
+  const canvas = document.createElementNS('http://www.w3.org/1999/xhtml', 'canvas');
+  canvas.style.display = 'block';
+  return canvas;
+}
+
+function WebGLRenderer(parameters) {
+  parameters = parameters || {};
+
+  const _canvas = parameters.canvas !== undefined ? parameters.canvas : createCanvasElement(),
+        _context = parameters.context !== undefined ? parameters.context : null,
+        _alpha = parameters.alpha !== undefined ? parameters.alpha : false,
+        _depth = parameters.depth !== undefined ? parameters.depth : true,
+        _stencil = parameters.stencil !== undefined ? parameters.stencil : true,
+        _antialias = parameters.antialias !== undefined ? parameters.antialias : false,
+        _premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
+        _preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,
+        _powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default',
+        _failIfMajorPerformanceCaveat = parameters.failIfMajorPerformanceCaveat !== undefined ? parameters.failIfMajorPerformanceCaveat : false;
+
+  let currentRenderList = null;
+  let currentRenderState = null; // render() can be called from within a callback triggered by another render.
+  // We track this so that the nested render call gets its list and state isolated from the parent render call.
+
+  const renderListStack = [];
+  const renderStateStack = []; // public properties
+
+  this.domElement = _canvas; // Debug configuration container
+
+  this.debug = {
+    /**
+     * Enables error checking and reporting when shader programs are being compiled
+     * @type {boolean}
+     */
+    checkShaderErrors: true
+  }; // clearing
+
+  this.autoClear = true;
+  this.autoClearColor = true;
+  this.autoClearDepth = true;
+  this.autoClearStencil = true; // scene graph
+
+  this.sortObjects = true; // user-defined clipping
+
+  this.clippingPlanes = [];
+  this.localClippingEnabled = false; // physically based shading
+
+  this.gammaFactor = 2.0; // for backwards compatibility
+
+  this.outputEncoding = LinearEncoding; // physical lights
+
+  this.physicallyCorrectLights = false; // tone mapping
+
+  this.toneMapping = NoToneMapping;
+  this.toneMappingExposure = 1.0; // morphs
+
+  this.maxMorphTargets = 8;
+  this.maxMorphNormals = 4; // internal properties
+
+  const _this = this;
+
+  let _isContextLost = false; // internal state cache
+
+  let _framebuffer = null;
+  let _currentActiveCubeFace = 0;
+  let _currentActiveMipmapLevel = 0;
+  let _currentRenderTarget = null;
+  let _currentFramebuffer = null;
+
+  let _currentMaterialId = -1;
+
+  let _currentCamera = null;
+
+  const _currentViewport = new Vector4();
+
+  const _currentScissor = new Vector4();
+
+  let _currentScissorTest = null; //
+
+  let _width = _canvas.width;
+  let _height = _canvas.height;
+  let _pixelRatio = 1;
+  let _opaqueSort = null;
+  let _transparentSort = null;
+
+  const _viewport = new Vector4(0, 0, _width, _height);
+
+  const _scissor = new Vector4(0, 0, _width, _height);
+
+  let _scissorTest = false; // frustum
+
+  const _frustum = new Frustum(); // clipping
+
+
+  let _clippingEnabled = false;
+  let _localClippingEnabled = false; // camera matrices cache
+
+  const _projScreenMatrix = new Matrix4();
+
+  const _vector3 = new Vector3();
+
+  const _emptyScene = {
+    background: null,
+    fog: null,
+    environment: null,
+    overrideMaterial: null,
+    isScene: true
+  };
+
+  function getTargetPixelRatio() {
+    return _currentRenderTarget === null ? _pixelRatio : 1;
+  } // initialize
+
+
+  let _gl = _context;
+
+  function getContext(contextNames, contextAttributes) {
+    for (let i = 0; i < contextNames.length; i++) {
+      const contextName = contextNames[i];
+
+      const context = _canvas.getContext(contextName, contextAttributes);
+
+      if (context !== null) return context;
+    }
+
+    return null;
+  }
+
+  try {
+    const contextAttributes = {
+      alpha: _alpha,
+      depth: _depth,
+      stencil: _stencil,
+      antialias: _antialias,
+      premultipliedAlpha: _premultipliedAlpha,
+      preserveDrawingBuffer: _preserveDrawingBuffer,
+      powerPreference: _powerPreference,
+      failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat
+    }; // event listeners must be registered before WebGL context is created, see #12753
+
+    _canvas.addEventListener('webglcontextlost', onContextLost, false);
+
+    _canvas.addEventListener('webglcontextrestored', onContextRestore, false);
+
+    if (_gl === null) {
+      const contextNames = ['webgl2', 'webgl', 'experimental-webgl'];
+
+      if (_this.isWebGL1Renderer === true) {
+        contextNames.shift();
+      }
+
+      _gl = getContext(contextNames, contextAttributes);
+
+      if (_gl === null) {
+        if (getContext(contextNames)) {
+          throw new Error('Error creating WebGL context with your selected attributes.');
+        } else {
+          throw new Error('Error creating WebGL context.');
+        }
+      }
+    } // Some experimental-webgl implementations do not have getShaderPrecisionFormat
+
+
+    if (_gl.getShaderPrecisionFormat === undefined) {
+      _gl.getShaderPrecisionFormat = function () {
+        return {
+          'rangeMin': 1,
+          'rangeMax': 1,
+          'precision': 1
+        };
+      };
+    }
+  } catch (error) {
+    console.error('THREE.WebGLRenderer: ' + error.message);
+    throw error;
+  }
+
+  let extensions, capabilities, state, info;
+  let properties, textures, cubemaps, attributes, geometries, objects;
+  let programCache, materials, renderLists, renderStates, clipping;
+  let background, morphtargets, bufferRenderer, indexedBufferRenderer;
+  let utils, bindingStates;
+
+  function initGLContext() {
+    extensions = new WebGLExtensions(_gl);
+    capabilities = new WebGLCapabilities(_gl, extensions, parameters);
+    extensions.init(capabilities);
+    utils = new WebGLUtils(_gl, extensions, capabilities);
+    state = new WebGLState(_gl, extensions, capabilities);
+    state.scissor(_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor());
+    state.viewport(_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor());
+    info = new WebGLInfo(_gl);
+    properties = new WebGLProperties();
+    textures = new WebGLTextures(_gl, extensions, state, properties, capabilities, utils, info);
+    cubemaps = new WebGLCubeMaps(_this);
+    attributes = new WebGLAttributes(_gl, capabilities);
+    bindingStates = new WebGLBindingStates(_gl, extensions, attributes, capabilities);
+    geometries = new WebGLGeometries(_gl, attributes, info, bindingStates);
+    objects = new WebGLObjects(_gl, geometries, attributes, info);
+    morphtargets = new WebGLMorphtargets(_gl);
+    clipping = new WebGLClipping(properties);
+    programCache = new WebGLPrograms(_this, cubemaps, extensions, capabilities, bindingStates, clipping);
+    materials = new WebGLMaterials(properties);
+    renderLists = new WebGLRenderLists(properties);
+    renderStates = new WebGLRenderStates(extensions, capabilities);
+    background = new WebGLBackground(_this, cubemaps, state, objects, _premultipliedAlpha);
+    bufferRenderer = new WebGLBufferRenderer(_gl, extensions, info, capabilities);
+    indexedBufferRenderer = new WebGLIndexedBufferRenderer(_gl, extensions, info, capabilities);
+    info.programs = programCache.programs;
+    _this.capabilities = capabilities;
+    _this.extensions = extensions;
+    _this.properties = properties;
+    _this.renderLists = renderLists;
+    _this.state = state;
+    _this.info = info;
+  }
+
+  initGLContext(); // xr
+
+  const xr = new WebXRManager(_this, _gl);
+  this.xr = xr; // shadow map
+
+  const shadowMap = new WebGLShadowMap(_this, objects, capabilities.maxTextureSize);
+  this.shadowMap = shadowMap; // API
+
+  this.getContext = function () {
+    return _gl;
+  };
+
+  this.getContextAttributes = function () {
+    return _gl.getContextAttributes();
+  };
+
+  this.forceContextLoss = function () {
+    const extension = extensions.get('WEBGL_lose_context');
+    if (extension) extension.loseContext();
+  };
+
+  this.forceContextRestore = function () {
+    const extension = extensions.get('WEBGL_lose_context');
+    if (extension) extension.restoreContext();
+  };
+
+  this.getPixelRatio = function () {
+    return _pixelRatio;
+  };
+
+  this.setPixelRatio = function (value) {
+    if (value === undefined) return;
+    _pixelRatio = value;
+    this.setSize(_width, _height, false);
+  };
+
+  this.getSize = function (target) {
+    if (target === undefined) {
+      console.warn('WebGLRenderer: .getsize() now requires a Vector2 as an argument');
+      target = new Vector2();
+    }
+
+    return target.set(_width, _height);
+  };
+
+  this.setSize = function (width, height, updateStyle) {
+    if (xr.isPresenting) {
+      console.warn('THREE.WebGLRenderer: Can\'t change size while VR device is presenting.');
+      return;
+    }
+
+    _width = width;
+    _height = height;
+    _canvas.width = Math.floor(width * _pixelRatio);
+    _canvas.height = Math.floor(height * _pixelRatio);
+
+    if (updateStyle !== false) {
+      _canvas.style.width = width + 'px';
+      _canvas.style.height = height + 'px';
+    }
+
+    this.setViewport(0, 0, width, height);
+  };
+
+  this.getDrawingBufferSize = function (target) {
+    if (target === undefined) {
+      console.warn('WebGLRenderer: .getdrawingBufferSize() now requires a Vector2 as an argument');
+      target = new Vector2();
+    }
+
+    return target.set(_width * _pixelRatio, _height * _pixelRatio).floor();
+  };
+
+  this.setDrawingBufferSize = function (width, height, pixelRatio) {
+    _width = width;
+    _height = height;
+    _pixelRatio = pixelRatio;
+    _canvas.width = Math.floor(width * pixelRatio);
+    _canvas.height = Math.floor(height * pixelRatio);
+    this.setViewport(0, 0, width, height);
+  };
+
+  this.getCurrentViewport = function (target) {
+    if (target === undefined) {
+      console.warn('WebGLRenderer: .getCurrentViewport() now requires a Vector4 as an argument');
+      target = new Vector4();
+    }
+
+    return target.copy(_currentViewport);
+  };
+
+  this.getViewport = function (target) {
+    return target.copy(_viewport);
+  };
+
+  this.setViewport = function (x, y, width, height) {
+    if (x.isVector4) {
+      _viewport.set(x.x, x.y, x.z, x.w);
+    } else {
+      _viewport.set(x, y, width, height);
+    }
+
+    state.viewport(_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor());
+  };
+
+  this.getScissor = function (target) {
+    return target.copy(_scissor);
+  };
+
+  this.setScissor = function (x, y, width, height) {
+    if (x.isVector4) {
+      _scissor.set(x.x, x.y, x.z, x.w);
+    } else {
+      _scissor.set(x, y, width, height);
+    }
+
+    state.scissor(_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor());
+  };
+
+  this.getScissorTest = function () {
+    return _scissorTest;
+  };
+
+  this.setScissorTest = function (boolean) {
+    state.setScissorTest(_scissorTest = boolean);
+  };
+
+  this.setOpaqueSort = function (method) {
+    _opaqueSort = method;
+  };
+
+  this.setTransparentSort = function (method) {
+    _transparentSort = method;
+  }; // Clearing
+
+
+  this.getClearColor = function (target) {
+    if (target === undefined) {
+      console.warn('WebGLRenderer: .getClearColor() now requires a Color as an argument');
+      target = new Color();
+    }
+
+    return target.copy(background.getClearColor());
+  };
+
+  this.setClearColor = function () {
+    background.setClearColor.apply(background, arguments);
+  };
+
+  this.getClearAlpha = function () {
+    return background.getClearAlpha();
+  };
+
+  this.setClearAlpha = function () {
+    background.setClearAlpha.apply(background, arguments);
+  };
+
+  this.clear = function (color, depth, stencil) {
+    let bits = 0;
+    if (color === undefined || color) bits |= 16384;
+    if (depth === undefined || depth) bits |= 256;
+    if (stencil === undefined || stencil) bits |= 1024;
+
+    _gl.clear(bits);
+  };
+
+  this.clearColor = function () {
+    this.clear(true, false, false);
+  };
+
+  this.clearDepth = function () {
+    this.clear(false, true, false);
+  };
+
+  this.clearStencil = function () {
+    this.clear(false, false, true);
+  }; //
+
+
+  this.dispose = function () {
+    _canvas.removeEventListener('webglcontextlost', onContextLost, false);
+
+    _canvas.removeEventListener('webglcontextrestored', onContextRestore, false);
+
+    renderLists.dispose();
+    renderStates.dispose();
+    properties.dispose();
+    cubemaps.dispose();
+    objects.dispose();
+    bindingStates.dispose();
+    xr.dispose();
+    animation.stop();
+  }; // Events
+
+
+  function onContextLost(event) {
+    event.preventDefault();
+    console.log('THREE.WebGLRenderer: Context Lost.');
+    _isContextLost = true;
+  }
+
+  function onContextRestore()
+  /* event */
+  {
+    console.log('THREE.WebGLRenderer: Context Restored.');
+    _isContextLost = false;
+    initGLContext();
+  }
+
+  function onMaterialDispose(event) {
+    const material = event.target;
+    material.removeEventListener('dispose', onMaterialDispose);
+    deallocateMaterial(material);
+  } // Buffer deallocation
+
+
+  function deallocateMaterial(material) {
+    releaseMaterialProgramReference(material);
+    properties.remove(material);
+  }
+
+  function releaseMaterialProgramReference(material) {
+    const programInfo = properties.get(material).program;
+
+    if (programInfo !== undefined) {
+      programCache.releaseProgram(programInfo);
+    }
+  } // Buffer rendering
+
+
+  function renderObjectImmediate(object, program) {
+    object.render(function (object) {
+      _this.renderBufferImmediate(object, program);
+    });
+  }
+
+  this.renderBufferImmediate = function (object, program) {
+    bindingStates.initAttributes();
+    const buffers = properties.get(object);
+    if (object.hasPositions && !buffers.position) buffers.position = _gl.createBuffer();
+    if (object.hasNormals && !buffers.normal) buffers.normal = _gl.createBuffer();
+    if (object.hasUvs && !buffers.uv) buffers.uv = _gl.createBuffer();
+    if (object.hasColors && !buffers.color) buffers.color = _gl.createBuffer();
+    const programAttributes = program.getAttributes();
+
+    if (object.hasPositions) {
+      _gl.bindBuffer(34962, buffers.position);
+
+      _gl.bufferData(34962, object.positionArray, 35048);
+
+      bindingStates.enableAttribute(programAttributes.position);
+
+      _gl.vertexAttribPointer(programAttributes.position, 3, 5126, false, 0, 0);
+    }
+
+    if (object.hasNormals) {
+      _gl.bindBuffer(34962, buffers.normal);
+
+      _gl.bufferData(34962, object.normalArray, 35048);
+
+      bindingStates.enableAttribute(programAttributes.normal);
+
+      _gl.vertexAttribPointer(programAttributes.normal, 3, 5126, false, 0, 0);
+    }
+
+    if (object.hasUvs) {
+      _gl.bindBuffer(34962, buffers.uv);
+
+      _gl.bufferData(34962, object.uvArray, 35048);
+
+      bindingStates.enableAttribute(programAttributes.uv);
+
+      _gl.vertexAttribPointer(programAttributes.uv, 2, 5126, false, 0, 0);
+    }
+
+    if (object.hasColors) {
+      _gl.bindBuffer(34962, buffers.color);
+
+      _gl.bufferData(34962, object.colorArray, 35048);
+
+      bindingStates.enableAttribute(programAttributes.color);
+
+      _gl.vertexAttribPointer(programAttributes.color, 3, 5126, false, 0, 0);
+    }
+
+    bindingStates.disableUnusedAttributes();
+
+    _gl.drawArrays(4, 0, object.count);
+
+    object.count = 0;
+  };
+
+  this.renderBufferDirect = function (camera, scene, geometry, material, object, group) {
+    if (scene === null) scene = _emptyScene; // renderBufferDirect second parameter used to be fog (could be null)
+
+    const frontFaceCW = object.isMesh && object.matrixWorld.determinant() < 0;
+    const program = setProgram(camera, scene, material, object);
+    state.setMaterial(material, frontFaceCW); //
+
+    let index = geometry.index;
+    const position = geometry.attributes.position; //
+
+    if (index === null) {
+      if (position === undefined || position.count === 0) return;
+    } else if (index.count === 0) {
+      return;
+    } //
+
+
+    let rangeFactor = 1;
+
+    if (material.wireframe === true) {
+      index = geometries.getWireframeAttribute(geometry);
+      rangeFactor = 2;
+    }
+
+    if (material.morphTargets || material.morphNormals) {
+      morphtargets.update(object, geometry, material, program);
+    }
+
+    bindingStates.setup(object, material, program, geometry, index);
+    let attribute;
+    let renderer = bufferRenderer;
+
+    if (index !== null) {
+      attribute = attributes.get(index);
+      renderer = indexedBufferRenderer;
+      renderer.setIndex(attribute);
+    } //
+
+
+    const dataCount = index !== null ? index.count : position.count;
+    const rangeStart = geometry.drawRange.start * rangeFactor;
+    const rangeCount = geometry.drawRange.count * rangeFactor;
+    const groupStart = group !== null ? group.start * rangeFactor : 0;
+    const groupCount = group !== null ? group.count * rangeFactor : Infinity;
+    const drawStart = Math.max(rangeStart, groupStart);
+    const drawEnd = Math.min(dataCount, rangeStart + rangeCount, groupStart + groupCount) - 1;
+    const drawCount = Math.max(0, drawEnd - drawStart + 1);
+    if (drawCount === 0) return; //
+
+    if (object.isMesh) {
+      if (material.wireframe === true) {
+        state.setLineWidth(material.wireframeLinewidth * getTargetPixelRatio());
+        renderer.setMode(1);
+      } else {
+        renderer.setMode(4);
+      }
+    } else if (object.isLine) {
+      let lineWidth = material.linewidth;
+      if (lineWidth === undefined) lineWidth = 1; // Not using Line*Material
+
+      state.setLineWidth(lineWidth * getTargetPixelRatio());
+
+      if (object.isLineSegments) {
+        renderer.setMode(1);
+      } else if (object.isLineLoop) {
+        renderer.setMode(2);
+      } else {
+        renderer.setMode(3);
+      }
+    } else if (object.isPoints) {
+      renderer.setMode(0);
+    } else if (object.isSprite) {
+      renderer.setMode(4);
+    }
+
+    if (object.isInstancedMesh) {
+      renderer.renderInstances(drawStart, drawCount, object.count);
+    } else if (geometry.isInstancedBufferGeometry) {
+      const instanceCount = Math.min(geometry.instanceCount, geometry._maxInstanceCount);
+      renderer.renderInstances(drawStart, drawCount, instanceCount);
+    } else {
+      renderer.render(drawStart, drawCount);
+    }
+  }; // Compile
+
+
+  this.compile = function (scene, camera) {
+    currentRenderState = renderStates.get(scene);
+    currentRenderState.init();
+    scene.traverseVisible(function (object) {
+      if (object.isLight && object.layers.test(camera.layers)) {
+        currentRenderState.pushLight(object);
+
+        if (object.castShadow) {
+          currentRenderState.pushShadow(object);
+        }
+      }
+    });
+    currentRenderState.setupLights();
+    const compiled = new WeakMap();
+    scene.traverse(function (object) {
+      const material = object.material;
+
+      if (material) {
+        if (Array.isArray(material)) {
+          for (let i = 0; i < material.length; i++) {
+            const material2 = material[i];
+
+            if (compiled.has(material2) === false) {
+              initMaterial(material2, scene, object);
+              compiled.set(material2);
+            }
+          }
+        } else if (compiled.has(material) === false) {
+          initMaterial(material, scene, object);
+          compiled.set(material);
+        }
+      }
+    });
+  }; // Animation Loop
+
+
+  let onAnimationFrameCallback = null;
+
+  function onAnimationFrame(time) {
+    if (xr.isPresenting) return;
+    if (onAnimationFrameCallback) onAnimationFrameCallback(time);
+  }
+
+  const animation = new WebGLAnimation();
+  animation.setAnimationLoop(onAnimationFrame);
+  if (typeof window !== 'undefined') animation.setContext(window);
+
+  this.setAnimationLoop = function (callback) {
+    onAnimationFrameCallback = callback;
+    xr.setAnimationLoop(callback);
+    callback === null ? animation.stop() : animation.start();
+  }; // Rendering
+
+
+  this.render = function (scene, camera) {
+    let renderTarget, forceClear;
+
+    if (arguments[2] !== undefined) {
+      console.warn('THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead.');
+      renderTarget = arguments[2];
+    }
+
+    if (arguments[3] !== undefined) {
+      console.warn('THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead.');
+      forceClear = arguments[3];
+    }
+
+    if (camera !== undefined && camera.isCamera !== true) {
+      console.error('THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.');
+      return;
+    }
+
+    if (_isContextLost === true) return; // reset caching for this frame
+
+    bindingStates.resetDefaultState();
+    _currentMaterialId = -1;
+    _currentCamera = null; // update scene graph
+
+    if (scene.autoUpdate === true) scene.updateMatrixWorld(); // update camera matrices and frustum
+
+    if (camera.parent === null) camera.updateMatrixWorld();
+
+    if (xr.enabled === true && xr.isPresenting === true) {
+      camera = xr.getCamera(camera);
+    } //
+
+
+    if (scene.isScene === true) scene.onBeforeRender(_this, scene, camera, renderTarget || _currentRenderTarget);
+    currentRenderState = renderStates.get(scene, renderStateStack.length);
+    currentRenderState.init();
+    renderStateStack.push(currentRenderState);
+
+    _projScreenMatrix.multiplyMatrices(camera.projectionMatrix, camera.matrixWorldInverse);
+
+    _frustum.setFromProjectionMatrix(_projScreenMatrix);
+
+    _localClippingEnabled = this.localClippingEnabled;
+    _clippingEnabled = clipping.init(this.clippingPlanes, _localClippingEnabled, camera);
+    currentRenderList = renderLists.get(scene, renderListStack.length);
+    currentRenderList.init();
+    renderListStack.push(currentRenderList);
+    projectObject(scene, camera, 0, _this.sortObjects);
+    currentRenderList.finish();
+
+    if (_this.sortObjects === true) {
+      currentRenderList.sort(_opaqueSort, _transparentSort);
+    } //
+
+
+    if (_clippingEnabled === true) clipping.beginShadows();
+    const shadowsArray = currentRenderState.state.shadowsArray;
+    shadowMap.render(shadowsArray, scene, camera);
+    currentRenderState.setupLights();
+    currentRenderState.setupLightsView(camera);
+    if (_clippingEnabled === true) clipping.endShadows(); //
+
+    if (this.info.autoReset === true) this.info.reset();
+
+    if (renderTarget !== undefined) {
+      this.setRenderTarget(renderTarget);
+    } //
+
+
+    background.render(currentRenderList, scene, camera, forceClear); // render scene
+
+    const opaqueObjects = currentRenderList.opaque;
+    const transparentObjects = currentRenderList.transparent;
+    if (opaqueObjects.length > 0) renderObjects(opaqueObjects, scene, camera);
+    if (transparentObjects.length > 0) renderObjects(transparentObjects, scene, camera); //
+
+    if (scene.isScene === true) scene.onAfterRender(_this, scene, camera); //
+
+    if (_currentRenderTarget !== null) {
+      // Generate mipmap if we're using any kind of mipmap filtering
+      textures.updateRenderTargetMipmap(_currentRenderTarget); // resolve multisample renderbuffers to a single-sample texture if necessary
+
+      textures.updateMultisampleRenderTarget(_currentRenderTarget);
+    } // Ensure depth buffer writing is enabled so it can be cleared on next render
+
+
+    state.buffers.depth.setTest(true);
+    state.buffers.depth.setMask(true);
+    state.buffers.color.setMask(true);
+    state.setPolygonOffset(false); // _gl.finish();
+
+    renderStateStack.pop();
+
+    if (renderStateStack.length > 0) {
+      currentRenderState = renderStateStack[renderStateStack.length - 1];
+    } else {
+      currentRenderState = null;
+    }
+
+    renderListStack.pop();
+
+    if (renderListStack.length > 0) {
+      currentRenderList = renderListStack[renderListStack.length - 1];
+    } else {
+      currentRenderList = null;
+    }
+  };
+
+  function projectObject(object, camera, groupOrder, sortObjects) {
+    if (object.visible === false) return;
+    const visible = object.layers.test(camera.layers);
+
+    if (visible) {
+      if (object.isGroup) {
+        groupOrder = object.renderOrder;
+      } else if (object.isLOD) {
+        if (object.autoUpdate === true) object.update(camera);
+      } else if (object.isLight) {
+        currentRenderState.pushLight(object);
+
+        if (object.castShadow) {
+          currentRenderState.pushShadow(object);
+        }
+      } else if (object.isSprite) {
+        if (!object.frustumCulled || _frustum.intersectsSprite(object)) {
+          if (sortObjects) {
+            _vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);
+          }
+
+          const geometry = objects.update(object);
+          const material = object.material;
+
+          if (material.visible) {
+            currentRenderList.push(object, geometry, material, groupOrder, _vector3.z, null);
+          }
+        }
+      } else if (object.isImmediateRenderObject) {
+        if (sortObjects) {
+          _vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);
+        }
+
+        currentRenderList.push(object, null, object.material, groupOrder, _vector3.z, null);
+      } else if (object.isMesh || object.isLine || object.isPoints) {
+        if (object.isSkinnedMesh) {
+          // update skeleton only once in a frame
+          if (object.skeleton.frame !== info.render.frame) {
+            object.skeleton.update();
+            object.skeleton.frame = info.render.frame;
+          }
+        }
+
+        if (!object.frustumCulled || _frustum.intersectsObject(object)) {
+          if (sortObjects) {
+            _vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);
+          }
+
+          const geometry = objects.update(object);
+          const material = object.material;
+
+          if (Array.isArray(material)) {
+            const groups = geometry.groups;
+
+            for (let i = 0, l = groups.length; i < l; i++) {
+              const group = groups[i];
+              const groupMaterial = material[group.materialIndex];
+
+              if (groupMaterial && groupMaterial.visible) {
+                currentRenderList.push(object, geometry, groupMaterial, groupOrder, _vector3.z, group);
+              }
+            }
+          } else if (material.visible) {
+            currentRenderList.push(object, geometry, material, groupOrder, _vector3.z, null);
+          }
+        }
+      }
+    }
+
+    const children = object.children;
+
+    for (let i = 0, l = children.length; i < l; i++) {
+      projectObject(children[i], camera, groupOrder, sortObjects);
+    }
+  }
+
+  function renderObjects(renderList, scene, camera) {
+    const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null;
+
+    for (let i = 0, l = renderList.length; i < l; i++) {
+      const renderItem = renderList[i];
+      const object = renderItem.object;
+      const geometry = renderItem.geometry;
+      const material = overrideMaterial === null ? renderItem.material : overrideMaterial;
+      const group = renderItem.group;
+
+      if (camera.isArrayCamera) {
+        const cameras = camera.cameras;
+
+        for (let j = 0, jl = cameras.length; j < jl; j++) {
+          const camera2 = cameras[j];
+
+          if (object.layers.test(camera2.layers)) {
+            state.viewport(_currentViewport.copy(camera2.viewport));
+            currentRenderState.setupLightsView(camera2);
+            renderObject(object, scene, camera2, geometry, material, group);
+          }
+        }
+      } else {
+        renderObject(object, scene, camera, geometry, material, group);
+      }
+    }
+  }
+
+  function renderObject(object, scene, camera, geometry, material, group) {
+    object.onBeforeRender(_this, scene, camera, geometry, material, group);
+    object.modelViewMatrix.multiplyMatrices(camera.matrixWorldInverse, object.matrixWorld);
+    object.normalMatrix.getNormalMatrix(object.modelViewMatrix);
+
+    if (object.isImmediateRenderObject) {
+      const program = setProgram(camera, scene, material, object);
+      state.setMaterial(material);
+      bindingStates.reset();
+      renderObjectImmediate(object, program);
+    } else {
+      _this.renderBufferDirect(camera, scene, geometry, material, object, group);
+    }
+
+    object.onAfterRender(_this, scene, camera, geometry, material, group);
+  }
+
+  function initMaterial(material, scene, object) {
+    if (scene.isScene !== true) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...
+
+    const materialProperties = properties.get(material);
+    const lights = currentRenderState.state.lights;
+    const shadowsArray = currentRenderState.state.shadowsArray;
+    const lightsStateVersion = lights.state.version;
+    const parameters = programCache.getParameters(material, lights.state, shadowsArray, scene, object);
+    const programCacheKey = programCache.getProgramCacheKey(parameters);
+    let program = materialProperties.program;
+    let programChange = true; // always update environment and fog - changing these trigger an initMaterial call, but it's possible that the program doesn't change
+
+    materialProperties.environment = material.isMeshStandardMaterial ? scene.environment : null;
+    materialProperties.fog = scene.fog;
+    materialProperties.envMap = cubemaps.get(material.envMap || materialProperties.environment);
+
+    if (program === undefined) {
+      // new material
+      material.addEventListener('dispose', onMaterialDispose);
+    } else if (program.cacheKey !== programCacheKey) {
+      // changed glsl or parameters
+      releaseMaterialProgramReference(material);
+    } else if (materialProperties.lightsStateVersion !== lightsStateVersion) {
+      programChange = false;
+    } else if (parameters.shaderID !== undefined) {
+      // same glsl and uniform list
+      return;
+    } else {
+      // only rebuild uniform list
+      programChange = false;
+    }
+
+    if (programChange) {
+      parameters.uniforms = programCache.getUniforms(material);
+      material.onBeforeCompile(parameters, _this);
+      program = programCache.acquireProgram(parameters, programCacheKey);
+      materialProperties.program = program;
+      materialProperties.uniforms = parameters.uniforms;
+      materialProperties.outputEncoding = parameters.outputEncoding;
+    }
+
+    const uniforms = materialProperties.uniforms;
+
+    if (!material.isShaderMaterial && !material.isRawShaderMaterial || material.clipping === true) {
+      materialProperties.numClippingPlanes = clipping.numPlanes;
+      materialProperties.numIntersection = clipping.numIntersection;
+      uniforms.clippingPlanes = clipping.uniform;
+    } // store the light setup it was created for
+
+
+    materialProperties.needsLights = materialNeedsLights(material);
+    materialProperties.lightsStateVersion = lightsStateVersion;
+
+    if (materialProperties.needsLights) {
+      // wire up the material to this renderer's lighting state
+      uniforms.ambientLightColor.value = lights.state.ambient;
+      uniforms.lightProbe.value = lights.state.probe;
+      uniforms.directionalLights.value = lights.state.directional;
+      uniforms.directionalLightShadows.value = lights.state.directionalShadow;
+      uniforms.spotLights.value = lights.state.spot;
+      uniforms.spotLightShadows.value = lights.state.spotShadow;
+      uniforms.rectAreaLights.value = lights.state.rectArea;
+      uniforms.ltc_1.value = lights.state.rectAreaLTC1;
+      uniforms.ltc_2.value = lights.state.rectAreaLTC2;
+      uniforms.pointLights.value = lights.state.point;
+      uniforms.pointLightShadows.value = lights.state.pointShadow;
+      uniforms.hemisphereLights.value = lights.state.hemi;
+      uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
+      uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
+      uniforms.spotShadowMap.value = lights.state.spotShadowMap;
+      uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;
+      uniforms.pointShadowMap.value = lights.state.pointShadowMap;
+      uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix; // TODO (abelnation): add area lights shadow info to uniforms
+    }
+
+    const progUniforms = materialProperties.program.getUniforms();
+    const uniformsList = WebGLUniforms.seqWithValue(progUniforms.seq, uniforms);
+    materialProperties.uniformsList = uniformsList;
+  }
+
+  function setProgram(camera, scene, material, object) {
+    if (scene.isScene !== true) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...
+
+    textures.resetTextureUnits();
+    const fog = scene.fog;
+    const environment = material.isMeshStandardMaterial ? scene.environment : null;
+    const encoding = _currentRenderTarget === null ? _this.outputEncoding : _currentRenderTarget.texture.encoding;
+    const envMap = cubemaps.get(material.envMap || environment);
+    const materialProperties = properties.get(material);
+    const lights = currentRenderState.state.lights;
+
+    if (_clippingEnabled === true) {
+      if (_localClippingEnabled === true || camera !== _currentCamera) {
+        const useCache = camera === _currentCamera && material.id === _currentMaterialId; // we might want to call this function with some ClippingGroup
+        // object instead of the material, once it becomes feasible
+        // (#8465, #8379)
+
+        clipping.setState(material, camera, useCache);
+      }
+    }
+
+    if (material.version === materialProperties.__version) {
+      if (material.fog && materialProperties.fog !== fog) {
+        initMaterial(material, scene, object);
+      } else if (materialProperties.environment !== environment) {
+        initMaterial(material, scene, object);
+      } else if (materialProperties.needsLights && materialProperties.lightsStateVersion !== lights.state.version) {
+        initMaterial(material, scene, object);
+      } else if (materialProperties.numClippingPlanes !== undefined && (materialProperties.numClippingPlanes !== clipping.numPlanes || materialProperties.numIntersection !== clipping.numIntersection)) {
+        initMaterial(material, scene, object);
+      } else if (materialProperties.outputEncoding !== encoding) {
+        initMaterial(material, scene, object);
+      } else if (materialProperties.envMap !== envMap) {
+        initMaterial(material, scene, object);
+      }
+    } else {
+      initMaterial(material, scene, object);
+      materialProperties.__version = material.version;
+    }
+
+    let refreshProgram = false;
+    let refreshMaterial = false;
+    let refreshLights = false;
+    const program = materialProperties.program,
+          p_uniforms = program.getUniforms(),
+          m_uniforms = materialProperties.uniforms;
+
+    if (state.useProgram(program.program)) {
+      refreshProgram = true;
+      refreshMaterial = true;
+      refreshLights = true;
+    }
+
+    if (material.id !== _currentMaterialId) {
+      _currentMaterialId = material.id;
+      refreshMaterial = true;
+    }
+
+    if (refreshProgram || _currentCamera !== camera) {
+      p_uniforms.setValue(_gl, 'projectionMatrix', camera.projectionMatrix);
+
+      if (capabilities.logarithmicDepthBuffer) {
+        p_uniforms.setValue(_gl, 'logDepthBufFC', 2.0 / (Math.log(camera.far + 1.0) / Math.LN2));
+      }
+
+      if (_currentCamera !== camera) {
+        _currentCamera = camera; // lighting uniforms depend on the camera so enforce an update
+        // now, in case this material supports lights - or later, when
+        // the next material that does gets activated:
+
+        refreshMaterial = true; // set to true on material change
+
+        refreshLights = true; // remains set until update done
+      } // load material specific uniforms
+      // (shader material also gets them for the sake of genericity)
+
+
+      if (material.isShaderMaterial || material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshStandardMaterial || material.envMap) {
+        const uCamPos = p_uniforms.map.cameraPosition;
+
+        if (uCamPos !== undefined) {
+          uCamPos.setValue(_gl, _vector3.setFromMatrixPosition(camera.matrixWorld));
+        }
+      }
+
+      if (material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshLambertMaterial || material.isMeshBasicMaterial || material.isMeshStandardMaterial || material.isShaderMaterial) {
+        p_uniforms.setValue(_gl, 'isOrthographic', camera.isOrthographicCamera === true);
+      }
+
+      if (material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshLambertMaterial || material.isMeshBasicMaterial || material.isMeshStandardMaterial || material.isShaderMaterial || material.isShadowMaterial || material.skinning) {
+        p_uniforms.setValue(_gl, 'viewMatrix', camera.matrixWorldInverse);
+      }
+    } // skinning uniforms must be set even if material didn't change
+    // auto-setting of texture unit for bone texture must go before other textures
+    // otherwise textures used for skinning can take over texture units reserved for other material textures
+
+
+    if (material.skinning) {
+      p_uniforms.setOptional(_gl, object, 'bindMatrix');
+      p_uniforms.setOptional(_gl, object, 'bindMatrixInverse');
+      const skeleton = object.skeleton;
+
+      if (skeleton) {
+        const bones = skeleton.bones;
+
+        if (capabilities.floatVertexTextures) {
+          if (skeleton.boneTexture === null) {
+            // layout (1 matrix = 4 pixels)
+            //      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
+            //  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
+            //       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
+            //       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
+            //       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)
+            let size = Math.sqrt(bones.length * 4); // 4 pixels needed for 1 matrix
+
+            size = MathUtils.ceilPowerOfTwo(size);
+            size = Math.max(size, 4);
+            const boneMatrices = new Float32Array(size * size * 4); // 4 floats per RGBA pixel
+
+            boneMatrices.set(skeleton.boneMatrices); // copy current values
+
+            const boneTexture = new DataTexture(boneMatrices, size, size, RGBAFormat, FloatType);
+            skeleton.boneMatrices = boneMatrices;
+            skeleton.boneTexture = boneTexture;
+            skeleton.boneTextureSize = size;
+          }
+
+          p_uniforms.setValue(_gl, 'boneTexture', skeleton.boneTexture, textures);
+          p_uniforms.setValue(_gl, 'boneTextureSize', skeleton.boneTextureSize);
+        } else {
+          p_uniforms.setOptional(_gl, skeleton, 'boneMatrices');
+        }
+      }
+    }
+
+    if (refreshMaterial || materialProperties.receiveShadow !== object.receiveShadow) {
+      materialProperties.receiveShadow = object.receiveShadow;
+      p_uniforms.setValue(_gl, 'receiveShadow', object.receiveShadow);
+    }
+
+    if (refreshMaterial) {
+      p_uniforms.setValue(_gl, 'toneMappingExposure', _this.toneMappingExposure);
+
+      if (materialProperties.needsLights) {
+        // the current material requires lighting info
+        // note: all lighting uniforms are always set correctly
+        // they simply reference the renderer's state for their
+        // values
+        //
+        // use the current material's .needsUpdate flags to set
+        // the GL state when required
+        markUniformsLightsNeedsUpdate(m_uniforms, refreshLights);
+      } // refresh uniforms common to several materials
+
+
+      if (fog && material.fog) {
+        materials.refreshFogUniforms(m_uniforms, fog);
+      }
+
+      materials.refreshMaterialUniforms(m_uniforms, material, _pixelRatio, _height);
+      WebGLUniforms.upload(_gl, materialProperties.uniformsList, m_uniforms, textures);
+    }
+
+    if (material.isShaderMaterial && material.uniformsNeedUpdate === true) {
+      WebGLUniforms.upload(_gl, materialProperties.uniformsList, m_uniforms, textures);
+      material.uniformsNeedUpdate = false;
+    }
+
+    if (material.isSpriteMaterial) {
+      p_uniforms.setValue(_gl, 'center', object.center);
+    } // common matrices
+
+
+    p_uniforms.setValue(_gl, 'modelViewMatrix', object.modelViewMatrix);
+    p_uniforms.setValue(_gl, 'normalMatrix', object.normalMatrix);
+    p_uniforms.setValue(_gl, 'modelMatrix', object.matrixWorld);
+    return program;
+  } // If uniforms are marked as clean, they don't need to be loaded to the GPU.
+
+
+  function markUniformsLightsNeedsUpdate(uniforms, value) {
+    uniforms.ambientLightColor.needsUpdate = value;
+    uniforms.lightProbe.needsUpdate = value;
+    uniforms.directionalLights.needsUpdate = value;
+    uniforms.directionalLightShadows.needsUpdate = value;
+    uniforms.pointLights.needsUpdate = value;
+    uniforms.pointLightShadows.needsUpdate = value;
+    uniforms.spotLights.needsUpdate = value;
+    uniforms.spotLightShadows.needsUpdate = value;
+    uniforms.rectAreaLights.needsUpdate = value;
+    uniforms.hemisphereLights.needsUpdate = value;
+  }
+
+  function materialNeedsLights(material) {
+    return material.isMeshLambertMaterial || material.isMeshToonMaterial || material.isMeshPhongMaterial || material.isMeshStandardMaterial || material.isShadowMaterial || material.isShaderMaterial && material.lights === true;
+  } //
+
+
+  this.setFramebuffer = function (value) {
+    if (_framebuffer !== value && _currentRenderTarget === null) _gl.bindFramebuffer(36160, value);
+    _framebuffer = value;
+  };
+
+  this.getActiveCubeFace = function () {
+    return _currentActiveCubeFace;
+  };
+
+  this.getActiveMipmapLevel = function () {
+    return _currentActiveMipmapLevel;
+  };
+
+  this.getRenderTarget = function () {
+    return _currentRenderTarget;
+  };
+
+  this.setRenderTarget = function (renderTarget, activeCubeFace = 0, activeMipmapLevel = 0) {
+    _currentRenderTarget = renderTarget;
+    _currentActiveCubeFace = activeCubeFace;
+    _currentActiveMipmapLevel = activeMipmapLevel;
+
+    if (renderTarget && properties.get(renderTarget).__webglFramebuffer === undefined) {
+      textures.setupRenderTarget(renderTarget);
+    }
+
+    let framebuffer = _framebuffer;
+    let isCube = false;
+    let isRenderTarget3D = false;
+
+    if (renderTarget) {
+      const texture = renderTarget.texture;
+
+      if (texture.isDataTexture3D || texture.isDataTexture2DArray) {
+        isRenderTarget3D = true;
+      }
+
+      const __webglFramebuffer = properties.get(renderTarget).__webglFramebuffer;
+
+      if (renderTarget.isWebGLCubeRenderTarget) {
+        framebuffer = __webglFramebuffer[activeCubeFace];
+        isCube = true;
+      } else if (renderTarget.isWebGLMultisampleRenderTarget) {
+        framebuffer = properties.get(renderTarget).__webglMultisampledFramebuffer;
+      } else {
+        framebuffer = __webglFramebuffer;
+      }
+
+      _currentViewport.copy(renderTarget.viewport);
+
+      _currentScissor.copy(renderTarget.scissor);
+
+      _currentScissorTest = renderTarget.scissorTest;
+    } else {
+      _currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor();
+
+      _currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor();
+
+      _currentScissorTest = _scissorTest;
+    }
+
+    if (_currentFramebuffer !== framebuffer) {
+      _gl.bindFramebuffer(36160, framebuffer);
+
+      _currentFramebuffer = framebuffer;
+    }
+
+    state.viewport(_currentViewport);
+    state.scissor(_currentScissor);
+    state.setScissorTest(_currentScissorTest);
+
+    if (isCube) {
+      const textureProperties = properties.get(renderTarget.texture);
+
+      _gl.framebufferTexture2D(36160, 36064, 34069 + activeCubeFace, textureProperties.__webglTexture, activeMipmapLevel);
+    } else if (isRenderTarget3D) {
+      const textureProperties = properties.get(renderTarget.texture);
+      const layer = activeCubeFace || 0;
+
+      _gl.framebufferTextureLayer(36160, 36064, textureProperties.__webglTexture, activeMipmapLevel || 0, layer);
+    }
+  };
+
+  this.readRenderTargetPixels = function (renderTarget, x, y, width, height, buffer, activeCubeFaceIndex) {
+    if (!(renderTarget && renderTarget.isWebGLRenderTarget)) {
+      console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.');
+      return;
+    }
+
+    let framebuffer = properties.get(renderTarget).__webglFramebuffer;
+
+    if (renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== undefined) {
+      framebuffer = framebuffer[activeCubeFaceIndex];
+    }
+
+    if (framebuffer) {
+      let restore = false;
+
+      if (framebuffer !== _currentFramebuffer) {
+        _gl.bindFramebuffer(36160, framebuffer);
+
+        restore = true;
+      }
+
+      try {
+        const texture = renderTarget.texture;
+        const textureFormat = texture.format;
+        const textureType = texture.type;
+
+        if (textureFormat !== RGBAFormat && utils.convert(textureFormat) !== _gl.getParameter(35739)) {
+          console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.');
+          return;
+        }
+
+        const halfFloatSupportedByExt = textureType === HalfFloatType && (extensions.has('EXT_color_buffer_half_float') || capabilities.isWebGL2 && extensions.has('EXT_color_buffer_float'));
+
+        if (textureType !== UnsignedByteType && utils.convert(textureType) !== _gl.getParameter(35738) && // Edge and Chrome Mac < 52 (#9513)
+        !(textureType === FloatType && (capabilities.isWebGL2 || extensions.has('OES_texture_float') || extensions.has('WEBGL_color_buffer_float'))) && // Chrome Mac >= 52 and Firefox
+        !halfFloatSupportedByExt) {
+          console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.');
+          return;
+        }
+
+        if (_gl.checkFramebufferStatus(36160) === 36053) {
+          // the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)
+          if (x >= 0 && x <= renderTarget.width - width && y >= 0 && y <= renderTarget.height - height) {
+            _gl.readPixels(x, y, width, height, utils.convert(textureFormat), utils.convert(textureType), buffer);
+          }
+        } else {
+          console.error('THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.');
+        }
+      } finally {
+        if (restore) {
+          _gl.bindFramebuffer(36160, _currentFramebuffer);
+        }
+      }
+    }
+  };
+
+  this.copyFramebufferToTexture = function (position, texture, level = 0) {
+    const levelScale = Math.pow(2, -level);
+    const width = Math.floor(texture.image.width * levelScale);
+    const height = Math.floor(texture.image.height * levelScale);
+    const glFormat = utils.convert(texture.format);
+    textures.setTexture2D(texture, 0);
+
+    _gl.copyTexImage2D(3553, level, glFormat, position.x, position.y, width, height, 0);
+
+    state.unbindTexture();
+  };
+
+  this.copyTextureToTexture = function (position, srcTexture, dstTexture, level = 0) {
+    const width = srcTexture.image.width;
+    const height = srcTexture.image.height;
+    const glFormat = utils.convert(dstTexture.format);
+    const glType = utils.convert(dstTexture.type);
+    textures.setTexture2D(dstTexture, 0); // As another texture upload may have changed pixelStorei
+    // parameters, make sure they are correct for the dstTexture
+
+    _gl.pixelStorei(37440, dstTexture.flipY);
+
+    _gl.pixelStorei(37441, dstTexture.premultiplyAlpha);
+
+    _gl.pixelStorei(3317, dstTexture.unpackAlignment);
+
+    if (srcTexture.isDataTexture) {
+      _gl.texSubImage2D(3553, level, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data);
+    } else {
+      if (srcTexture.isCompressedTexture) {
+        _gl.compressedTexSubImage2D(3553, level, position.x, position.y, srcTexture.mipmaps[0].width, srcTexture.mipmaps[0].height, glFormat, srcTexture.mipmaps[0].data);
+      } else {
+        _gl.texSubImage2D(3553, level, position.x, position.y, glFormat, glType, srcTexture.image);
+      }
+    } // Generate mipmaps only when copying level 0
+
+
+    if (level === 0 && dstTexture.generateMipmaps) _gl.generateMipmap(3553);
+    state.unbindTexture();
+  };
+
+  this.copyTextureToTexture3D = function (sourceBox, position, srcTexture, dstTexture, level = 0) {
+    if (_this.isWebGL1Renderer) {
+      console.warn('THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.');
+      return;
+    }
+
+    const {
+      width,
+      height,
+      data
+    } = srcTexture.image;
+    const glFormat = utils.convert(dstTexture.format);
+    const glType = utils.convert(dstTexture.type);
+    let glTarget;
+
+    if (dstTexture.isDataTexture3D) {
+      textures.setTexture3D(dstTexture, 0);
+      glTarget = 32879;
+    } else if (dstTexture.isDataTexture2DArray) {
+      textures.setTexture2DArray(dstTexture, 0);
+      glTarget = 35866;
+    } else {
+      console.warn('THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.');
+      return;
+    }
+
+    _gl.pixelStorei(37440, dstTexture.flipY);
+
+    _gl.pixelStorei(37441, dstTexture.premultiplyAlpha);
+
+    _gl.pixelStorei(3317, dstTexture.unpackAlignment);
+
+    const unpackRowLen = _gl.getParameter(3314);
+
+    const unpackImageHeight = _gl.getParameter(32878);
+
+    const unpackSkipPixels = _gl.getParameter(3316);
+
+    const unpackSkipRows = _gl.getParameter(3315);
+
+    const unpackSkipImages = _gl.getParameter(32877);
+
+    _gl.pixelStorei(3314, width);
+
+    _gl.pixelStorei(32878, height);
+
+    _gl.pixelStorei(3316, sourceBox.min.x);
+
+    _gl.pixelStorei(3315, sourceBox.min.y);
+
+    _gl.pixelStorei(32877, sourceBox.min.z);
+
+    _gl.texSubImage3D(glTarget, level, position.x, position.y, position.z, sourceBox.max.x - sourceBox.min.x + 1, sourceBox.max.y - sourceBox.min.y + 1, sourceBox.max.z - sourceBox.min.z + 1, glFormat, glType, data);
+
+    _gl.pixelStorei(3314, unpackRowLen);
+
+    _gl.pixelStorei(32878, unpackImageHeight);
+
+    _gl.pixelStorei(3316, unpackSkipPixels);
+
+    _gl.pixelStorei(3315, unpackSkipRows);
+
+    _gl.pixelStorei(32877, unpackSkipImages); // Generate mipmaps only when copying level 0
+
+
+    if (level === 0 && dstTexture.generateMipmaps) _gl.generateMipmap(glTarget);
+    state.unbindTexture();
+  };
+
+  this.initTexture = function (texture) {
+    textures.setTexture2D(texture, 0);
+    state.unbindTexture();
+  };
+
+  this.resetState = function () {
+    state.reset();
+    bindingStates.reset();
+  };
+
+  if (typeof __THREE_DEVTOOLS__ !== 'undefined') {
+    __THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('observe', {
+      detail: this
+    })); // eslint-disable-line no-undef
+
+  }
+}
+
+class WebGL1Renderer extends WebGLRenderer {}
+
+exports.WebGL1Renderer = WebGL1Renderer;
+WebGL1Renderer.prototype.isWebGL1Renderer = true;
+
+class FogExp2 {
+  constructor(color, density) {
+    this.name = '';
+    this.color = new Color(color);
+    this.density = density !== undefined ? density : 0.00025;
+  }
+
+  clone() {
+    return new FogExp2(this.color, this.density);
+  }
+
+  toJSON()
+  /* meta */
+  {
+    return {
+      type: 'FogExp2',
+      color: this.color.getHex(),
+      density: this.density
+    };
+  }
+
+}
+
+exports.FogExp2 = FogExp2;
+FogExp2.prototype.isFogExp2 = true;
+
+class Fog {
+  constructor(color, near, far) {
+    this.name = '';
+    this.color = new Color(color);
+    this.near = near !== undefined ? near : 1;
+    this.far = far !== undefined ? far : 1000;
+  }
+
+  clone() {
+    return new Fog(this.color, this.near, this.far);
+  }
+
+  toJSON()
+  /* meta */
+  {
+    return {
+      type: 'Fog',
+      color: this.color.getHex(),
+      near: this.near,
+      far: this.far
+    };
+  }
+
+}
+
+exports.Fog = Fog;
+Fog.prototype.isFog = true;
+
+class Scene extends Object3D {
+  constructor() {
+    super();
+    this.type = 'Scene';
+    this.background = null;
+    this.environment = null;
+    this.fog = null;
+    this.overrideMaterial = null;
+    this.autoUpdate = true; // checked by the renderer
+
+    if (typeof __THREE_DEVTOOLS__ !== 'undefined') {
+      __THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('observe', {
+        detail: this
+      })); // eslint-disable-line no-undef
+
+    }
+  }
+
+  copy(source, recursive) {
+    super.copy(source, recursive);
+    if (source.background !== null) this.background = source.background.clone();
+    if (source.environment !== null) this.environment = source.environment.clone();
+    if (source.fog !== null) this.fog = source.fog.clone();
+    if (source.overrideMaterial !== null) this.overrideMaterial = source.overrideMaterial.clone();
+    this.autoUpdate = source.autoUpdate;
+    this.matrixAutoUpdate = source.matrixAutoUpdate;
+    return this;
+  }
+
+  toJSON(meta) {
+    const data = super.toJSON(meta);
+    if (this.background !== null) data.object.background = this.background.toJSON(meta);
+    if (this.environment !== null) data.object.environment = this.environment.toJSON(meta);
+    if (this.fog !== null) data.object.fog = this.fog.toJSON();
+    return data;
+  }
+
+}
+
+exports.Scene = Scene;
+Scene.prototype.isScene = true;
+
+function InterleavedBuffer(array, stride) {
+  this.array = array;
+  this.stride = stride;
+  this.count = array !== undefined ? array.length / stride : 0;
+  this.usage = StaticDrawUsage;
+  this.updateRange = {
+    offset: 0,
+    count: -1
+  };
+  this.version = 0;
+  this.uuid = MathUtils.generateUUID();
+}
+
+Object.defineProperty(InterleavedBuffer.prototype, 'needsUpdate', {
+  set: function (value) {
+    if (value === true) this.version++;
+  }
+});
+Object.assign(InterleavedBuffer.prototype, {
+  isInterleavedBuffer: true,
+  onUploadCallback: function () {},
+  setUsage: function (value) {
+    this.usage = value;
+    return this;
+  },
+  copy: function (source) {
+    this.array = new source.array.constructor(source.array);
+    this.count = source.count;
+    this.stride = source.stride;
+    this.usage = source.usage;
+    return this;
+  },
+  copyAt: function (index1, attribute, index2) {
+    index1 *= this.stride;
+    index2 *= attribute.stride;
+
+    for (let i = 0, l = this.stride; i < l; i++) {
+      this.array[index1 + i] = attribute.array[index2 + i];
+    }
+
+    return this;
+  },
+  set: function (value, offset = 0) {
+    this.array.set(value, offset);
+    return this;
+  },
+  clone: function (data) {
+    if (data.arrayBuffers === undefined) {
+      data.arrayBuffers = {};
+    }
+
+    if (this.array.buffer._uuid === undefined) {
+      this.array.buffer._uuid = MathUtils.generateUUID();
+    }
+
+    if (data.arrayBuffers[this.array.buffer._uuid] === undefined) {
+      data.arrayBuffers[this.array.buffer._uuid] = this.array.slice(0).buffer;
+    }
+
+    const array = new this.array.constructor(data.arrayBuffers[this.array.buffer._uuid]);
+    const ib = new InterleavedBuffer(array, this.stride);
+    ib.setUsage(this.usage);
+    return ib;
+  },
+  onUpload: function (callback) {
+    this.onUploadCallback = callback;
+    return this;
+  },
+  toJSON: function (data) {
+    if (data.arrayBuffers === undefined) {
+      data.arrayBuffers = {};
+    } // generate UUID for array buffer if necessary
+
+
+    if (this.array.buffer._uuid === undefined) {
+      this.array.buffer._uuid = MathUtils.generateUUID();
+    }
+
+    if (data.arrayBuffers[this.array.buffer._uuid] === undefined) {
+      data.arrayBuffers[this.array.buffer._uuid] = Array.prototype.slice.call(new Uint32Array(this.array.buffer));
+    } //
+
+
+    return {
+      uuid: this.uuid,
+      buffer: this.array.buffer._uuid,
+      type: this.array.constructor.name,
+      stride: this.stride
+    };
+  }
+});
+
+const _vector$6 = new Vector3();
+
+function InterleavedBufferAttribute(interleavedBuffer, itemSize, offset, normalized) {
+  this.name = '';
+  this.data = interleavedBuffer;
+  this.itemSize = itemSize;
+  this.offset = offset;
+  this.normalized = normalized === true;
+}
+
+Object.defineProperties(InterleavedBufferAttribute.prototype, {
+  count: {
+    get: function () {
+      return this.data.count;
+    }
+  },
+  array: {
+    get: function () {
+      return this.data.array;
+    }
+  },
+  needsUpdate: {
+    set: function (value) {
+      this.data.needsUpdate = value;
+    }
+  }
+});
+Object.assign(InterleavedBufferAttribute.prototype, {
+  isInterleavedBufferAttribute: true,
+  applyMatrix4: function (m) {
+    for (let i = 0, l = this.data.count; i < l; i++) {
+      _vector$6.x = this.getX(i);
+      _vector$6.y = this.getY(i);
+      _vector$6.z = this.getZ(i);
+
+      _vector$6.applyMatrix4(m);
+
+      this.setXYZ(i, _vector$6.x, _vector$6.y, _vector$6.z);
+    }
+
+    return this;
+  },
+  setX: function (index, x) {
+    this.data.array[index * this.data.stride + this.offset] = x;
+    return this;
+  },
+  setY: function (index, y) {
+    this.data.array[index * this.data.stride + this.offset + 1] = y;
+    return this;
+  },
+  setZ: function (index, z) {
+    this.data.array[index * this.data.stride + this.offset + 2] = z;
+    return this;
+  },
+  setW: function (index, w) {
+    this.data.array[index * this.data.stride + this.offset + 3] = w;
+    return this;
+  },
+  getX: function (index) {
+    return this.data.array[index * this.data.stride + this.offset];
+  },
+  getY: function (index) {
+    return this.data.array[index * this.data.stride + this.offset + 1];
+  },
+  getZ: function (index) {
+    return this.data.array[index * this.data.stride + this.offset + 2];
+  },
+  getW: function (index) {
+    return this.data.array[index * this.data.stride + this.offset + 3];
+  },
+  setXY: function (index, x, y) {
+    index = index * this.data.stride + this.offset;
+    this.data.array[index + 0] = x;
+    this.data.array[index + 1] = y;
+    return this;
+  },
+  setXYZ: function (index, x, y, z) {
+    index = index * this.data.stride + this.offset;
+    this.data.array[index + 0] = x;
+    this.data.array[index + 1] = y;
+    this.data.array[index + 2] = z;
+    return this;
+  },
+  setXYZW: function (index, x, y, z, w) {
+    index = index * this.data.stride + this.offset;
+    this.data.array[index + 0] = x;
+    this.data.array[index + 1] = y;
+    this.data.array[index + 2] = z;
+    this.data.array[index + 3] = w;
+    return this;
+  },
+  clone: function (data) {
+    if (data === undefined) {
+      console.log('THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.');
+      const array = [];
+
+      for (let i = 0; i < this.count; i++) {
+        const index = i * this.data.stride + this.offset;
+
+        for (let j = 0; j < this.itemSize; j++) {
+          array.push(this.data.array[index + j]);
+        }
+      }
+
+      return new BufferAttribute(new this.array.constructor(array), this.itemSize, this.normalized);
+    } else {
+      if (data.interleavedBuffers === undefined) {
+        data.interleavedBuffers = {};
+      }
+
+      if (data.interleavedBuffers[this.data.uuid] === undefined) {
+        data.interleavedBuffers[this.data.uuid] = this.data.clone(data);
+      }
+
+      return new InterleavedBufferAttribute(data.interleavedBuffers[this.data.uuid], this.itemSize, this.offset, this.normalized);
+    }
+  },
+  toJSON: function (data) {
+    if (data === undefined) {
+      console.log('THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.');
+      const array = [];
+
+      for (let i = 0; i < this.count; i++) {
+        const index = i * this.data.stride + this.offset;
+
+        for (let j = 0; j < this.itemSize; j++) {
+          array.push(this.data.array[index + j]);
+        }
+      } // deinterleave data and save it as an ordinary buffer attribute for now
+
+
+      return {
+        itemSize: this.itemSize,
+        type: this.array.constructor.name,
+        array: array,
+        normalized: this.normalized
+      };
+    } else {
+      // save as true interlaved attribtue
+      if (data.interleavedBuffers === undefined) {
+        data.interleavedBuffers = {};
+      }
+
+      if (data.interleavedBuffers[this.data.uuid] === undefined) {
+        data.interleavedBuffers[this.data.uuid] = this.data.toJSON(data);
+      }
+
+      return {
+        isInterleavedBufferAttribute: true,
+        itemSize: this.itemSize,
+        data: this.data.uuid,
+        offset: this.offset,
+        normalized: this.normalized
+      };
+    }
+  }
+});
+/**
+ * parameters = {
+ *  color: <hex>,
+ *  map: new THREE.Texture( <Image> ),
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *  rotation: <float>,
+ *  sizeAttenuation: <bool>
+ * }
+ */
+
+class SpriteMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'SpriteMaterial';
+    this.color = new Color(0xffffff);
+    this.map = null;
+    this.alphaMap = null;
+    this.rotation = 0;
+    this.sizeAttenuation = true;
+    this.transparent = true;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.color.copy(source.color);
+    this.map = source.map;
+    this.alphaMap = source.alphaMap;
+    this.rotation = source.rotation;
+    this.sizeAttenuation = source.sizeAttenuation;
+    return this;
+  }
+
+}
+
+exports.SpriteMaterial = SpriteMaterial;
+SpriteMaterial.prototype.isSpriteMaterial = true;
+
+let _geometry;
+
+const _intersectPoint =
+/*@__PURE__*/
+new Vector3();
+
+const _worldScale =
+/*@__PURE__*/
+new Vector3();
+
+const _mvPosition =
+/*@__PURE__*/
+new Vector3();
+
+const _alignedPosition =
+/*@__PURE__*/
+new Vector2();
+
+const _rotatedPosition =
+/*@__PURE__*/
+new Vector2();
+
+const _viewWorldMatrix =
+/*@__PURE__*/
+new Matrix4();
+
+const _vA$1 =
+/*@__PURE__*/
+new Vector3();
+
+const _vB$1 =
+/*@__PURE__*/
+new Vector3();
+
+const _vC$1 =
+/*@__PURE__*/
+new Vector3();
+
+const _uvA$1 =
+/*@__PURE__*/
+new Vector2();
+
+const _uvB$1 =
+/*@__PURE__*/
+new Vector2();
+
+const _uvC$1 =
+/*@__PURE__*/
+new Vector2();
+
+class Sprite extends Object3D {
+  constructor(material) {
+    super();
+    this.type = 'Sprite';
+
+    if (_geometry === undefined) {
+      _geometry = new BufferGeometry();
+      const float32Array = new Float32Array([-0.5, -0.5, 0, 0, 0, 0.5, -0.5, 0, 1, 0, 0.5, 0.5, 0, 1, 1, -0.5, 0.5, 0, 0, 1]);
+      const interleavedBuffer = new InterleavedBuffer(float32Array, 5);
+
+      _geometry.setIndex([0, 1, 2, 0, 2, 3]);
+
+      _geometry.setAttribute('position', new InterleavedBufferAttribute(interleavedBuffer, 3, 0, false));
+
+      _geometry.setAttribute('uv', new InterleavedBufferAttribute(interleavedBuffer, 2, 3, false));
+    }
+
+    this.geometry = _geometry;
+    this.material = material !== undefined ? material : new SpriteMaterial();
+    this.center = new Vector2(0.5, 0.5);
+  }
+
+  raycast(raycaster, intersects) {
+    if (raycaster.camera === null) {
+      console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.');
+    }
+
+    _worldScale.setFromMatrixScale(this.matrixWorld);
+
+    _viewWorldMatrix.copy(raycaster.camera.matrixWorld);
+
+    this.modelViewMatrix.multiplyMatrices(raycaster.camera.matrixWorldInverse, this.matrixWorld);
+
+    _mvPosition.setFromMatrixPosition(this.modelViewMatrix);
+
+    if (raycaster.camera.isPerspectiveCamera && this.material.sizeAttenuation === false) {
+      _worldScale.multiplyScalar(-_mvPosition.z);
+    }
+
+    const rotation = this.material.rotation;
+    let sin, cos;
+
+    if (rotation !== 0) {
+      cos = Math.cos(rotation);
+      sin = Math.sin(rotation);
+    }
+
+    const center = this.center;
+    transformVertex(_vA$1.set(-0.5, -0.5, 0), _mvPosition, center, _worldScale, sin, cos);
+    transformVertex(_vB$1.set(0.5, -0.5, 0), _mvPosition, center, _worldScale, sin, cos);
+    transformVertex(_vC$1.set(0.5, 0.5, 0), _mvPosition, center, _worldScale, sin, cos);
+
+    _uvA$1.set(0, 0);
+
+    _uvB$1.set(1, 0);
+
+    _uvC$1.set(1, 1); // check first triangle
+
+
+    let intersect = raycaster.ray.intersectTriangle(_vA$1, _vB$1, _vC$1, false, _intersectPoint);
+
+    if (intersect === null) {
+      // check second triangle
+      transformVertex(_vB$1.set(-0.5, 0.5, 0), _mvPosition, center, _worldScale, sin, cos);
+
+      _uvB$1.set(0, 1);
+
+      intersect = raycaster.ray.intersectTriangle(_vA$1, _vC$1, _vB$1, false, _intersectPoint);
+
+      if (intersect === null) {
+        return;
+      }
+    }
+
+    const distance = raycaster.ray.origin.distanceTo(_intersectPoint);
+    if (distance < raycaster.near || distance > raycaster.far) return;
+    intersects.push({
+      distance: distance,
+      point: _intersectPoint.clone(),
+      uv: Triangle.getUV(_intersectPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2()),
+      face: null,
+      object: this
+    });
+  }
+
+  copy(source) {
+    super.copy(source);
+    if (source.center !== undefined) this.center.copy(source.center);
+    this.material = source.material;
+    return this;
+  }
+
+}
+
+exports.Sprite = Sprite;
+Sprite.prototype.isSprite = true;
+
+function transformVertex(vertexPosition, mvPosition, center, scale, sin, cos) {
+  // compute position in camera space
+  _alignedPosition.subVectors(vertexPosition, center).addScalar(0.5).multiply(scale); // to check if rotation is not zero
+
+
+  if (sin !== undefined) {
+    _rotatedPosition.x = cos * _alignedPosition.x - sin * _alignedPosition.y;
+    _rotatedPosition.y = sin * _alignedPosition.x + cos * _alignedPosition.y;
+  } else {
+    _rotatedPosition.copy(_alignedPosition);
+  }
+
+  vertexPosition.copy(mvPosition);
+  vertexPosition.x += _rotatedPosition.x;
+  vertexPosition.y += _rotatedPosition.y; // transform to world space
+
+  vertexPosition.applyMatrix4(_viewWorldMatrix);
+}
+
+const _v1$4 =
+/*@__PURE__*/
+new Vector3();
+
+const _v2$2 =
+/*@__PURE__*/
+new Vector3();
+
+class LOD extends Object3D {
+  constructor() {
+    super();
+    this._currentLevel = 0;
+    this.type = 'LOD';
+    Object.defineProperties(this, {
+      levels: {
+        enumerable: true,
+        value: []
+      },
+      isLOD: {
+        value: true
+      }
+    });
+    this.autoUpdate = true;
+  }
+
+  copy(source) {
+    super.copy(source, false);
+    const levels = source.levels;
+
+    for (let i = 0, l = levels.length; i < l; i++) {
+      const level = levels[i];
+      this.addLevel(level.object.clone(), level.distance);
+    }
+
+    this.autoUpdate = source.autoUpdate;
+    return this;
+  }
+
+  addLevel(object, distance = 0) {
+    distance = Math.abs(distance);
+    const levels = this.levels;
+    let l;
+
+    for (l = 0; l < levels.length; l++) {
+      if (distance < levels[l].distance) {
+        break;
+      }
+    }
+
+    levels.splice(l, 0, {
+      distance: distance,
+      object: object
+    });
+    this.add(object);
+    return this;
+  }
+
+  getCurrentLevel() {
+    return this._currentLevel;
+  }
+
+  getObjectForDistance(distance) {
+    const levels = this.levels;
+
+    if (levels.length > 0) {
+      let i, l;
+
+      for (i = 1, l = levels.length; i < l; i++) {
+        if (distance < levels[i].distance) {
+          break;
+        }
+      }
+
+      return levels[i - 1].object;
+    }
+
+    return null;
+  }
+
+  raycast(raycaster, intersects) {
+    const levels = this.levels;
+
+    if (levels.length > 0) {
+      _v1$4.setFromMatrixPosition(this.matrixWorld);
+
+      const distance = raycaster.ray.origin.distanceTo(_v1$4);
+      this.getObjectForDistance(distance).raycast(raycaster, intersects);
+    }
+  }
+
+  update(camera) {
+    const levels = this.levels;
+
+    if (levels.length > 1) {
+      _v1$4.setFromMatrixPosition(camera.matrixWorld);
+
+      _v2$2.setFromMatrixPosition(this.matrixWorld);
+
+      const distance = _v1$4.distanceTo(_v2$2) / camera.zoom;
+      levels[0].object.visible = true;
+      let i, l;
+
+      for (i = 1, l = levels.length; i < l; i++) {
+        if (distance >= levels[i].distance) {
+          levels[i - 1].object.visible = false;
+          levels[i].object.visible = true;
+        } else {
+          break;
+        }
+      }
+
+      this._currentLevel = i - 1;
+
+      for (; i < l; i++) {
+        levels[i].object.visible = false;
+      }
+    }
+  }
+
+  toJSON(meta) {
+    const data = super.toJSON(meta);
+    if (this.autoUpdate === false) data.object.autoUpdate = false;
+    data.object.levels = [];
+    const levels = this.levels;
+
+    for (let i = 0, l = levels.length; i < l; i++) {
+      const level = levels[i];
+      data.object.levels.push({
+        object: level.object.uuid,
+        distance: level.distance
+      });
+    }
+
+    return data;
+  }
+
+}
+
+exports.LOD = LOD;
+
+const _basePosition = new Vector3();
+
+const _skinIndex = new Vector4();
+
+const _skinWeight = new Vector4();
+
+const _vector$7 = new Vector3();
+
+const _matrix$1 = new Matrix4();
+
+function SkinnedMesh(geometry, material) {
+  Mesh.call(this, geometry, material);
+  this.type = 'SkinnedMesh';
+  this.bindMode = 'attached';
+  this.bindMatrix = new Matrix4();
+  this.bindMatrixInverse = new Matrix4();
+}
+
+SkinnedMesh.prototype = Object.assign(Object.create(Mesh.prototype), {
+  constructor: SkinnedMesh,
+  isSkinnedMesh: true,
+  copy: function (source) {
+    Mesh.prototype.copy.call(this, source);
+    this.bindMode = source.bindMode;
+    this.bindMatrix.copy(source.bindMatrix);
+    this.bindMatrixInverse.copy(source.bindMatrixInverse);
+    this.skeleton = source.skeleton;
+    return this;
+  },
+  bind: function (skeleton, bindMatrix) {
+    this.skeleton = skeleton;
+
+    if (bindMatrix === undefined) {
+      this.updateMatrixWorld(true);
+      this.skeleton.calculateInverses();
+      bindMatrix = this.matrixWorld;
+    }
+
+    this.bindMatrix.copy(bindMatrix);
+    this.bindMatrixInverse.copy(bindMatrix).invert();
+  },
+  pose: function () {
+    this.skeleton.pose();
+  },
+  normalizeSkinWeights: function () {
+    const vector = new Vector4();
+    const skinWeight = this.geometry.attributes.skinWeight;
+
+    for (let i = 0, l = skinWeight.count; i < l; i++) {
+      vector.x = skinWeight.getX(i);
+      vector.y = skinWeight.getY(i);
+      vector.z = skinWeight.getZ(i);
+      vector.w = skinWeight.getW(i);
+      const scale = 1.0 / vector.manhattanLength();
+
+      if (scale !== Infinity) {
+        vector.multiplyScalar(scale);
+      } else {
+        vector.set(1, 0, 0, 0); // do something reasonable
+      }
+
+      skinWeight.setXYZW(i, vector.x, vector.y, vector.z, vector.w);
+    }
+  },
+  updateMatrixWorld: function (force) {
+    Mesh.prototype.updateMatrixWorld.call(this, force);
+
+    if (this.bindMode === 'attached') {
+      this.bindMatrixInverse.copy(this.matrixWorld).invert();
+    } else if (this.bindMode === 'detached') {
+      this.bindMatrixInverse.copy(this.bindMatrix).invert();
+    } else {
+      console.warn('THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode);
+    }
+  },
+  boneTransform: function (index, target) {
+    const skeleton = this.skeleton;
+    const geometry = this.geometry;
+
+    _skinIndex.fromBufferAttribute(geometry.attributes.skinIndex, index);
+
+    _skinWeight.fromBufferAttribute(geometry.attributes.skinWeight, index);
+
+    _basePosition.fromBufferAttribute(geometry.attributes.position, index).applyMatrix4(this.bindMatrix);
+
+    target.set(0, 0, 0);
+
+    for (let i = 0; i < 4; i++) {
+      const weight = _skinWeight.getComponent(i);
+
+      if (weight !== 0) {
+        const boneIndex = _skinIndex.getComponent(i);
+
+        _matrix$1.multiplyMatrices(skeleton.bones[boneIndex].matrixWorld, skeleton.boneInverses[boneIndex]);
+
+        target.addScaledVector(_vector$7.copy(_basePosition).applyMatrix4(_matrix$1), weight);
+      }
+    }
+
+    return target.applyMatrix4(this.bindMatrixInverse);
+  }
+});
+
+function Bone() {
+  Object3D.call(this);
+  this.type = 'Bone';
+}
+
+Bone.prototype = Object.assign(Object.create(Object3D.prototype), {
+  constructor: Bone,
+  isBone: true
+});
+
+const _offsetMatrix =
+/*@__PURE__*/
+new Matrix4();
+
+const _identityMatrix =
+/*@__PURE__*/
+new Matrix4();
+
+class Skeleton {
+  constructor(bones = [], boneInverses = []) {
+    this.uuid = MathUtils.generateUUID();
+    this.bones = bones.slice(0);
+    this.boneInverses = boneInverses;
+    this.boneMatrices = null;
+    this.boneTexture = null;
+    this.boneTextureSize = 0;
+    this.frame = -1;
+    this.init();
+  }
+
+  init() {
+    const bones = this.bones;
+    const boneInverses = this.boneInverses;
+    this.boneMatrices = new Float32Array(bones.length * 16); // calculate inverse bone matrices if necessary
+
+    if (boneInverses.length === 0) {
+      this.calculateInverses();
+    } else {
+      // handle special case
+      if (bones.length !== boneInverses.length) {
+        console.warn('THREE.Skeleton: Number of inverse bone matrices does not match amount of bones.');
+        this.boneInverses = [];
+
+        for (let i = 0, il = this.bones.length; i < il; i++) {
+          this.boneInverses.push(new Matrix4());
+        }
+      }
+    }
+  }
+
+  calculateInverses() {
+    this.boneInverses.length = 0;
+
+    for (let i = 0, il = this.bones.length; i < il; i++) {
+      const inverse = new Matrix4();
+
+      if (this.bones[i]) {
+        inverse.copy(this.bones[i].matrixWorld).invert();
+      }
+
+      this.boneInverses.push(inverse);
+    }
+  }
+
+  pose() {
+    // recover the bind-time world matrices
+    for (let i = 0, il = this.bones.length; i < il; i++) {
+      const bone = this.bones[i];
+
+      if (bone) {
+        bone.matrixWorld.copy(this.boneInverses[i]).invert();
+      }
+    } // compute the local matrices, positions, rotations and scales
+
+
+    for (let i = 0, il = this.bones.length; i < il; i++) {
+      const bone = this.bones[i];
+
+      if (bone) {
+        if (bone.parent && bone.parent.isBone) {
+          bone.matrix.copy(bone.parent.matrixWorld).invert();
+          bone.matrix.multiply(bone.matrixWorld);
+        } else {
+          bone.matrix.copy(bone.matrixWorld);
+        }
+
+        bone.matrix.decompose(bone.position, bone.quaternion, bone.scale);
+      }
+    }
+  }
+
+  update() {
+    const bones = this.bones;
+    const boneInverses = this.boneInverses;
+    const boneMatrices = this.boneMatrices;
+    const boneTexture = this.boneTexture; // flatten bone matrices to array
+
+    for (let i = 0, il = bones.length; i < il; i++) {
+      // compute the offset between the current and the original transform
+      const matrix = bones[i] ? bones[i].matrixWorld : _identityMatrix;
+
+      _offsetMatrix.multiplyMatrices(matrix, boneInverses[i]);
+
+      _offsetMatrix.toArray(boneMatrices, i * 16);
+    }
+
+    if (boneTexture !== null) {
+      boneTexture.needsUpdate = true;
+    }
+  }
+
+  clone() {
+    return new Skeleton(this.bones, this.boneInverses);
+  }
+
+  getBoneByName(name) {
+    for (let i = 0, il = this.bones.length; i < il; i++) {
+      const bone = this.bones[i];
+
+      if (bone.name === name) {
+        return bone;
+      }
+    }
+
+    return undefined;
+  }
+
+  dispose() {
+    if (this.boneTexture !== null) {
+      this.boneTexture.dispose();
+      this.boneTexture = null;
+    }
+  }
+
+  fromJSON(json, bones) {
+    this.uuid = json.uuid;
+
+    for (let i = 0, l = json.bones.length; i < l; i++) {
+      const uuid = json.bones[i];
+      let bone = bones[uuid];
+
+      if (bone === undefined) {
+        console.warn('THREE.Skeleton: No bone found with UUID:', uuid);
+        bone = new Bone();
+      }
+
+      this.bones.push(bone);
+      this.boneInverses.push(new Matrix4().fromArray(json.boneInverses[i]));
+    }
+
+    this.init();
+    return this;
+  }
+
+  toJSON() {
+    const data = {
+      metadata: {
+        version: 4.5,
+        type: 'Skeleton',
+        generator: 'Skeleton.toJSON'
+      },
+      bones: [],
+      boneInverses: []
+    };
+    data.uuid = this.uuid;
+    const bones = this.bones;
+    const boneInverses = this.boneInverses;
+
+    for (let i = 0, l = bones.length; i < l; i++) {
+      const bone = bones[i];
+      data.bones.push(bone.uuid);
+      const boneInverse = boneInverses[i];
+      data.boneInverses.push(boneInverse.toArray());
+    }
+
+    return data;
+  }
+
+}
+
+exports.Skeleton = Skeleton;
+
+const _instanceLocalMatrix = new Matrix4();
+
+const _instanceWorldMatrix = new Matrix4();
+
+const _instanceIntersects = [];
+
+const _mesh = new Mesh();
+
+function InstancedMesh(geometry, material, count) {
+  Mesh.call(this, geometry, material);
+  this.instanceMatrix = new BufferAttribute(new Float32Array(count * 16), 16);
+  this.instanceColor = null;
+  this.count = count;
+  this.frustumCulled = false;
+}
+
+InstancedMesh.prototype = Object.assign(Object.create(Mesh.prototype), {
+  constructor: InstancedMesh,
+  isInstancedMesh: true,
+  copy: function (source) {
+    Mesh.prototype.copy.call(this, source);
+    this.instanceMatrix.copy(source.instanceMatrix);
+    if (source.instanceColor !== null) this.instanceColor = source.instanceColor.clone();
+    this.count = source.count;
+    return this;
+  },
+  getColorAt: function (index, color) {
+    color.fromArray(this.instanceColor.array, index * 3);
+  },
+  getMatrixAt: function (index, matrix) {
+    matrix.fromArray(this.instanceMatrix.array, index * 16);
+  },
+  raycast: function (raycaster, intersects) {
+    const matrixWorld = this.matrixWorld;
+    const raycastTimes = this.count;
+    _mesh.geometry = this.geometry;
+    _mesh.material = this.material;
+    if (_mesh.material === undefined) return;
+
+    for (let instanceId = 0; instanceId < raycastTimes; instanceId++) {
+      // calculate the world matrix for each instance
+      this.getMatrixAt(instanceId, _instanceLocalMatrix);
+
+      _instanceWorldMatrix.multiplyMatrices(matrixWorld, _instanceLocalMatrix); // the mesh represents this single instance
+
+
+      _mesh.matrixWorld = _instanceWorldMatrix;
+
+      _mesh.raycast(raycaster, _instanceIntersects); // process the result of raycast
+
+
+      for (let i = 0, l = _instanceIntersects.length; i < l; i++) {
+        const intersect = _instanceIntersects[i];
+        intersect.instanceId = instanceId;
+        intersect.object = this;
+        intersects.push(intersect);
+      }
+
+      _instanceIntersects.length = 0;
+    }
+  },
+  setColorAt: function (index, color) {
+    if (this.instanceColor === null) {
+      this.instanceColor = new BufferAttribute(new Float32Array(this.count * 3), 3);
+    }
+
+    color.toArray(this.instanceColor.array, index * 3);
+  },
+  setMatrixAt: function (index, matrix) {
+    matrix.toArray(this.instanceMatrix.array, index * 16);
+  },
+  updateMorphTargets: function () {},
+  dispose: function () {
+    this.dispatchEvent({
+      type: 'dispose'
+    });
+  }
+});
+/**
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *
+ *  linewidth: <float>,
+ *  linecap: "round",
+ *  linejoin: "round"
+ * }
+ */
+
+class LineBasicMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'LineBasicMaterial';
+    this.color = new Color(0xffffff);
+    this.linewidth = 1;
+    this.linecap = 'round';
+    this.linejoin = 'round';
+    this.morphTargets = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.color.copy(source.color);
+    this.linewidth = source.linewidth;
+    this.linecap = source.linecap;
+    this.linejoin = source.linejoin;
+    this.morphTargets = source.morphTargets;
+    return this;
+  }
+
+}
+
+exports.LineBasicMaterial = LineBasicMaterial;
+LineBasicMaterial.prototype.isLineBasicMaterial = true;
+
+const _start = new Vector3();
+
+const _end = new Vector3();
+
+const _inverseMatrix$1 = new Matrix4();
+
+const _ray$1 = new Ray();
+
+const _sphere$2 = new Sphere();
+
+function Line(geometry = new BufferGeometry(), material = new LineBasicMaterial()) {
+  Object3D.call(this);
+  this.type = 'Line';
+  this.geometry = geometry;
+  this.material = material;
+  this.updateMorphTargets();
+}
+
+Line.prototype = Object.assign(Object.create(Object3D.prototype), {
+  constructor: Line,
+  isLine: true,
+  copy: function (source) {
+    Object3D.prototype.copy.call(this, source);
+    this.material = source.material;
+    this.geometry = source.geometry;
+    return this;
+  },
+  computeLineDistances: function () {
+    const geometry = this.geometry;
+
+    if (geometry.isBufferGeometry) {
+      // we assume non-indexed geometry
+      if (geometry.index === null) {
+        const positionAttribute = geometry.attributes.position;
+        const lineDistances = [0];
+
+        for (let i = 1, l = positionAttribute.count; i < l; i++) {
+          _start.fromBufferAttribute(positionAttribute, i - 1);
+
+          _end.fromBufferAttribute(positionAttribute, i);
+
+          lineDistances[i] = lineDistances[i - 1];
+          lineDistances[i] += _start.distanceTo(_end);
+        }
+
+        geometry.setAttribute('lineDistance', new Float32BufferAttribute(lineDistances, 1));
+      } else {
+        console.warn('THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.');
+      }
+    } else if (geometry.isGeometry) {
+      console.error('THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
+    }
+
+    return this;
+  },
+  raycast: function (raycaster, intersects) {
+    const geometry = this.geometry;
+    const matrixWorld = this.matrixWorld;
+    const threshold = raycaster.params.Line.threshold; // Checking boundingSphere distance to ray
+
+    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
+
+    _sphere$2.copy(geometry.boundingSphere);
+
+    _sphere$2.applyMatrix4(matrixWorld);
+
+    _sphere$2.radius += threshold;
+    if (raycaster.ray.intersectsSphere(_sphere$2) === false) return; //
+
+    _inverseMatrix$1.copy(matrixWorld).invert();
+
+    _ray$1.copy(raycaster.ray).applyMatrix4(_inverseMatrix$1);
+
+    const localThreshold = threshold / ((this.scale.x + this.scale.y + this.scale.z) / 3);
+    const localThresholdSq = localThreshold * localThreshold;
+    const vStart = new Vector3();
+    const vEnd = new Vector3();
+    const interSegment = new Vector3();
+    const interRay = new Vector3();
+    const step = this.isLineSegments ? 2 : 1;
+
+    if (geometry.isBufferGeometry) {
+      const index = geometry.index;
+      const attributes = geometry.attributes;
+      const positionAttribute = attributes.position;
+
+      if (index !== null) {
+        const indices = index.array;
+
+        for (let i = 0, l = indices.length - 1; i < l; i += step) {
+          const a = indices[i];
+          const b = indices[i + 1];
+          vStart.fromBufferAttribute(positionAttribute, a);
+          vEnd.fromBufferAttribute(positionAttribute, b);
+
+          const distSq = _ray$1.distanceSqToSegment(vStart, vEnd, interRay, interSegment);
+
+          if (distSq > localThresholdSq) continue;
+          interRay.applyMatrix4(this.matrixWorld); //Move back to world space for distance calculation
+
+          const distance = raycaster.ray.origin.distanceTo(interRay);
+          if (distance < raycaster.near || distance > raycaster.far) continue;
+          intersects.push({
+            distance: distance,
+            // What do we want? intersection point on the ray or on the segment??
+            // point: raycaster.ray.at( distance ),
+            point: interSegment.clone().applyMatrix4(this.matrixWorld),
+            index: i,
+            face: null,
+            faceIndex: null,
+            object: this
+          });
+        }
+      } else {
+        for (let i = 0, l = positionAttribute.count - 1; i < l; i += step) {
+          vStart.fromBufferAttribute(positionAttribute, i);
+          vEnd.fromBufferAttribute(positionAttribute, i + 1);
+
+          const distSq = _ray$1.distanceSqToSegment(vStart, vEnd, interRay, interSegment);
+
+          if (distSq > localThresholdSq) continue;
+          interRay.applyMatrix4(this.matrixWorld); //Move back to world space for distance calculation
+
+          const distance = raycaster.ray.origin.distanceTo(interRay);
+          if (distance < raycaster.near || distance > raycaster.far) continue;
+          intersects.push({
+            distance: distance,
+            // What do we want? intersection point on the ray or on the segment??
+            // point: raycaster.ray.at( distance ),
+            point: interSegment.clone().applyMatrix4(this.matrixWorld),
+            index: i,
+            face: null,
+            faceIndex: null,
+            object: this
+          });
+        }
+      }
+    } else if (geometry.isGeometry) {
+      console.error('THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
+    }
+  },
+  updateMorphTargets: function () {
+    const geometry = this.geometry;
+
+    if (geometry.isBufferGeometry) {
+      const morphAttributes = geometry.morphAttributes;
+      const keys = Object.keys(morphAttributes);
+
+      if (keys.length > 0) {
+        const morphAttribute = morphAttributes[keys[0]];
+
+        if (morphAttribute !== undefined) {
+          this.morphTargetInfluences = [];
+          this.morphTargetDictionary = {};
+
+          for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
+            const name = morphAttribute[m].name || String(m);
+            this.morphTargetInfluences.push(0);
+            this.morphTargetDictionary[name] = m;
+          }
+        }
+      }
+    } else {
+      const morphTargets = geometry.morphTargets;
+
+      if (morphTargets !== undefined && morphTargets.length > 0) {
+        console.error('THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.');
+      }
+    }
+  }
+});
+
+const _start$1 = new Vector3();
+
+const _end$1 = new Vector3();
+
+function LineSegments(geometry, material) {
+  Line.call(this, geometry, material);
+  this.type = 'LineSegments';
+}
+
+LineSegments.prototype = Object.assign(Object.create(Line.prototype), {
+  constructor: LineSegments,
+  isLineSegments: true,
+  computeLineDistances: function () {
+    const geometry = this.geometry;
+
+    if (geometry.isBufferGeometry) {
+      // we assume non-indexed geometry
+      if (geometry.index === null) {
+        const positionAttribute = geometry.attributes.position;
+        const lineDistances = [];
+
+        for (let i = 0, l = positionAttribute.count; i < l; i += 2) {
+          _start$1.fromBufferAttribute(positionAttribute, i);
+
+          _end$1.fromBufferAttribute(positionAttribute, i + 1);
+
+          lineDistances[i] = i === 0 ? 0 : lineDistances[i - 1];
+          lineDistances[i + 1] = lineDistances[i] + _start$1.distanceTo(_end$1);
+        }
+
+        geometry.setAttribute('lineDistance', new Float32BufferAttribute(lineDistances, 1));
+      } else {
+        console.warn('THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.');
+      }
+    } else if (geometry.isGeometry) {
+      console.error('THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
+    }
+
+    return this;
+  }
+});
+
+class LineLoop extends Line {
+  constructor(geometry, material) {
+    super(geometry, material);
+    this.type = 'LineLoop';
+  }
+
+}
+
+exports.LineLoop = LineLoop;
+LineLoop.prototype.isLineLoop = true;
+/**
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *  map: new THREE.Texture( <Image> ),
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  size: <float>,
+ *  sizeAttenuation: <bool>
+ *
+ *  morphTargets: <bool>
+ * }
+ */
+
+class PointsMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'PointsMaterial';
+    this.color = new Color(0xffffff);
+    this.map = null;
+    this.alphaMap = null;
+    this.size = 1;
+    this.sizeAttenuation = true;
+    this.morphTargets = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.color.copy(source.color);
+    this.map = source.map;
+    this.alphaMap = source.alphaMap;
+    this.size = source.size;
+    this.sizeAttenuation = source.sizeAttenuation;
+    this.morphTargets = source.morphTargets;
+    return this;
+  }
+
+}
+
+exports.PointsMaterial = PointsMaterial;
+PointsMaterial.prototype.isPointsMaterial = true;
+
+const _inverseMatrix$2 = new Matrix4();
+
+const _ray$2 = new Ray();
+
+const _sphere$3 = new Sphere();
+
+const _position$1 = new Vector3();
+
+function Points(geometry = new BufferGeometry(), material = new PointsMaterial()) {
+  Object3D.call(this);
+  this.type = 'Points';
+  this.geometry = geometry;
+  this.material = material;
+  this.updateMorphTargets();
+}
+
+Points.prototype = Object.assign(Object.create(Object3D.prototype), {
+  constructor: Points,
+  isPoints: true,
+  copy: function (source) {
+    Object3D.prototype.copy.call(this, source);
+    this.material = source.material;
+    this.geometry = source.geometry;
+    return this;
+  },
+  raycast: function (raycaster, intersects) {
+    const geometry = this.geometry;
+    const matrixWorld = this.matrixWorld;
+    const threshold = raycaster.params.Points.threshold; // Checking boundingSphere distance to ray
+
+    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
+
+    _sphere$3.copy(geometry.boundingSphere);
+
+    _sphere$3.applyMatrix4(matrixWorld);
+
+    _sphere$3.radius += threshold;
+    if (raycaster.ray.intersectsSphere(_sphere$3) === false) return; //
+
+    _inverseMatrix$2.copy(matrixWorld).invert();
+
+    _ray$2.copy(raycaster.ray).applyMatrix4(_inverseMatrix$2);
+
+    const localThreshold = threshold / ((this.scale.x + this.scale.y + this.scale.z) / 3);
+    const localThresholdSq = localThreshold * localThreshold;
+
+    if (geometry.isBufferGeometry) {
+      const index = geometry.index;
+      const attributes = geometry.attributes;
+      const positionAttribute = attributes.position;
+
+      if (index !== null) {
+        const indices = index.array;
+
+        for (let i = 0, il = indices.length; i < il; i++) {
+          const a = indices[i];
+
+          _position$1.fromBufferAttribute(positionAttribute, a);
+
+          testPoint(_position$1, a, localThresholdSq, matrixWorld, raycaster, intersects, this);
+        }
+      } else {
+        for (let i = 0, l = positionAttribute.count; i < l; i++) {
+          _position$1.fromBufferAttribute(positionAttribute, i);
+
+          testPoint(_position$1, i, localThresholdSq, matrixWorld, raycaster, intersects, this);
+        }
+      }
+    } else {
+      console.error('THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
+    }
+  },
+  updateMorphTargets: function () {
+    const geometry = this.geometry;
+
+    if (geometry.isBufferGeometry) {
+      const morphAttributes = geometry.morphAttributes;
+      const keys = Object.keys(morphAttributes);
+
+      if (keys.length > 0) {
+        const morphAttribute = morphAttributes[keys[0]];
+
+        if (morphAttribute !== undefined) {
+          this.morphTargetInfluences = [];
+          this.morphTargetDictionary = {};
+
+          for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
+            const name = morphAttribute[m].name || String(m);
+            this.morphTargetInfluences.push(0);
+            this.morphTargetDictionary[name] = m;
+          }
+        }
+      }
+    } else {
+      const morphTargets = geometry.morphTargets;
+
+      if (morphTargets !== undefined && morphTargets.length > 0) {
+        console.error('THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.');
+      }
+    }
+  }
+});
+
+function testPoint(point, index, localThresholdSq, matrixWorld, raycaster, intersects, object) {
+  const rayPointDistanceSq = _ray$2.distanceSqToPoint(point);
+
+  if (rayPointDistanceSq < localThresholdSq) {
+    const intersectPoint = new Vector3();
+
+    _ray$2.closestPointToPoint(point, intersectPoint);
+
+    intersectPoint.applyMatrix4(matrixWorld);
+    const distance = raycaster.ray.origin.distanceTo(intersectPoint);
+    if (distance < raycaster.near || distance > raycaster.far) return;
+    intersects.push({
+      distance: distance,
+      distanceToRay: Math.sqrt(rayPointDistanceSq),
+      point: intersectPoint,
+      index: index,
+      face: null,
+      object: object
+    });
+  }
+}
+
+class VideoTexture extends Texture {
+  constructor(video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy) {
+    super(video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
+    this.format = format !== undefined ? format : RGBFormat;
+    this.minFilter = minFilter !== undefined ? minFilter : LinearFilter;
+    this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
+    this.generateMipmaps = false;
+    const scope = this;
+
+    function updateVideo() {
+      scope.needsUpdate = true;
+      video.requestVideoFrameCallback(updateVideo);
+    }
+
+    if ('requestVideoFrameCallback' in video) {
+      video.requestVideoFrameCallback(updateVideo);
+    }
+  }
+
+  clone() {
+    return new this.constructor(this.image).copy(this);
+  }
+
+  update() {
+    const video = this.image;
+    const hasVideoFrameCallback = 'requestVideoFrameCallback' in video;
+
+    if (hasVideoFrameCallback === false && video.readyState >= video.HAVE_CURRENT_DATA) {
+      this.needsUpdate = true;
+    }
+  }
+
+}
+
+exports.VideoTexture = VideoTexture;
+VideoTexture.prototype.isVideoTexture = true;
+
+class CompressedTexture extends Texture {
+  constructor(mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding) {
+    super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding);
+    this.image = {
+      width: width,
+      height: height
+    };
+    this.mipmaps = mipmaps; // no flipping for cube textures
+    // (also flipping doesn't work for compressed textures )
+
+    this.flipY = false; // can't generate mipmaps for compressed textures
+    // mips must be embedded in DDS files
+
+    this.generateMipmaps = false;
+  }
+
+}
+
+exports.CompressedTexture = CompressedTexture;
+CompressedTexture.prototype.isCompressedTexture = true;
+
+class CanvasTexture extends Texture {
+  constructor(canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy) {
+    super(canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
+    this.needsUpdate = true;
+  }
+
+}
+
+exports.CanvasTexture = CanvasTexture;
+CanvasTexture.prototype.isCanvasTexture = true;
+
+class DepthTexture extends Texture {
+  constructor(width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format) {
+    format = format !== undefined ? format : DepthFormat;
+
+    if (format !== DepthFormat && format !== DepthStencilFormat) {
+      throw new Error('DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat');
+    }
+
+    if (type === undefined && format === DepthFormat) type = UnsignedShortType;
+    if (type === undefined && format === DepthStencilFormat) type = UnsignedInt248Type;
+    super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
+    this.image = {
+      width: width,
+      height: height
+    };
+    this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
+    this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
+    this.flipY = false;
+    this.generateMipmaps = false;
+  }
+
+}
+
+exports.DepthTexture = DepthTexture;
+DepthTexture.prototype.isDepthTexture = true;
+
+class CircleGeometry extends BufferGeometry {
+  constructor(radius = 1, segments = 8, thetaStart = 0, thetaLength = Math.PI * 2) {
+    super();
+    this.type = 'CircleGeometry';
+    this.parameters = {
+      radius: radius,
+      segments: segments,
+      thetaStart: thetaStart,
+      thetaLength: thetaLength
+    };
+    segments = Math.max(3, segments); // buffers
+
+    const indices = [];
+    const vertices = [];
+    const normals = [];
+    const uvs = []; // helper variables
+
+    const vertex = new Vector3();
+    const uv = new Vector2(); // center point
+
+    vertices.push(0, 0, 0);
+    normals.push(0, 0, 1);
+    uvs.push(0.5, 0.5);
+
+    for (let s = 0, i = 3; s <= segments; s++, i += 3) {
+      const segment = thetaStart + s / segments * thetaLength; // vertex
+
+      vertex.x = radius * Math.cos(segment);
+      vertex.y = radius * Math.sin(segment);
+      vertices.push(vertex.x, vertex.y, vertex.z); // normal
+
+      normals.push(0, 0, 1); // uvs
+
+      uv.x = (vertices[i] / radius + 1) / 2;
+      uv.y = (vertices[i + 1] / radius + 1) / 2;
+      uvs.push(uv.x, uv.y);
+    } // indices
+
+
+    for (let i = 1; i <= segments; i++) {
+      indices.push(i, i + 1, 0);
+    } // build geometry
+
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
+  }
+
+}
+
+exports.CircleGeometry = exports.CircleBufferGeometry = CircleGeometry;
+
+class CylinderGeometry extends BufferGeometry {
+  constructor(radiusTop = 1, radiusBottom = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2) {
+    super();
+    this.type = 'CylinderGeometry';
+    this.parameters = {
+      radiusTop: radiusTop,
+      radiusBottom: radiusBottom,
+      height: height,
+      radialSegments: radialSegments,
+      heightSegments: heightSegments,
+      openEnded: openEnded,
+      thetaStart: thetaStart,
+      thetaLength: thetaLength
+    };
+    const scope = this;
+    radialSegments = Math.floor(radialSegments);
+    heightSegments = Math.floor(heightSegments); // buffers
+
+    const indices = [];
+    const vertices = [];
+    const normals = [];
+    const uvs = []; // helper variables
+
+    let index = 0;
+    const indexArray = [];
+    const halfHeight = height / 2;
+    let groupStart = 0; // generate geometry
+
+    generateTorso();
+
+    if (openEnded === false) {
+      if (radiusTop > 0) generateCap(true);
+      if (radiusBottom > 0) generateCap(false);
+    } // build geometry
+
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
+
+    function generateTorso() {
+      const normal = new Vector3();
+      const vertex = new Vector3();
+      let groupCount = 0; // this will be used to calculate the normal
+
+      const slope = (radiusBottom - radiusTop) / height; // generate vertices, normals and uvs
+
+      for (let y = 0; y <= heightSegments; y++) {
+        const indexRow = [];
+        const v = y / heightSegments; // calculate the radius of the current row
+
+        const radius = v * (radiusBottom - radiusTop) + radiusTop;
+
+        for (let x = 0; x <= radialSegments; x++) {
+          const u = x / radialSegments;
+          const theta = u * thetaLength + thetaStart;
+          const sinTheta = Math.sin(theta);
+          const cosTheta = Math.cos(theta); // vertex
+
+          vertex.x = radius * sinTheta;
+          vertex.y = -v * height + halfHeight;
+          vertex.z = radius * cosTheta;
+          vertices.push(vertex.x, vertex.y, vertex.z); // normal
+
+          normal.set(sinTheta, slope, cosTheta).normalize();
+          normals.push(normal.x, normal.y, normal.z); // uv
+
+          uvs.push(u, 1 - v); // save index of vertex in respective row
+
+          indexRow.push(index++);
+        } // now save vertices of the row in our index array
+
+
+        indexArray.push(indexRow);
+      } // generate indices
+
+
+      for (let x = 0; x < radialSegments; x++) {
+        for (let y = 0; y < heightSegments; y++) {
+          // we use the index array to access the correct indices
+          const a = indexArray[y][x];
+          const b = indexArray[y + 1][x];
+          const c = indexArray[y + 1][x + 1];
+          const d = indexArray[y][x + 1]; // faces
+
+          indices.push(a, b, d);
+          indices.push(b, c, d); // update group counter
+
+          groupCount += 6;
+        }
+      } // add a group to the geometry. this will ensure multi material support
+
+
+      scope.addGroup(groupStart, groupCount, 0); // calculate new start value for groups
+
+      groupStart += groupCount;
+    }
+
+    function generateCap(top) {
+      // save the index of the first center vertex
+      const centerIndexStart = index;
+      const uv = new Vector2();
+      const vertex = new Vector3();
+      let groupCount = 0;
+      const radius = top === true ? radiusTop : radiusBottom;
+      const sign = top === true ? 1 : -1; // first we generate the center vertex data of the cap.
+      // because the geometry needs one set of uvs per face,
+      // we must generate a center vertex per face/segment
+
+      for (let x = 1; x <= radialSegments; x++) {
+        // vertex
+        vertices.push(0, halfHeight * sign, 0); // normal
+
+        normals.push(0, sign, 0); // uv
+
+        uvs.push(0.5, 0.5); // increase index
+
+        index++;
+      } // save the index of the last center vertex
+
+
+      const centerIndexEnd = index; // now we generate the surrounding vertices, normals and uvs
+
+      for (let x = 0; x <= radialSegments; x++) {
+        const u = x / radialSegments;
+        const theta = u * thetaLength + thetaStart;
+        const cosTheta = Math.cos(theta);
+        const sinTheta = Math.sin(theta); // vertex
+
+        vertex.x = radius * sinTheta;
+        vertex.y = halfHeight * sign;
+        vertex.z = radius * cosTheta;
+        vertices.push(vertex.x, vertex.y, vertex.z); // normal
+
+        normals.push(0, sign, 0); // uv
+
+        uv.x = cosTheta * 0.5 + 0.5;
+        uv.y = sinTheta * 0.5 * sign + 0.5;
+        uvs.push(uv.x, uv.y); // increase index
+
+        index++;
+      } // generate indices
+
+
+      for (let x = 0; x < radialSegments; x++) {
+        const c = centerIndexStart + x;
+        const i = centerIndexEnd + x;
+
+        if (top === true) {
+          // face top
+          indices.push(i, i + 1, c);
+        } else {
+          // face bottom
+          indices.push(i + 1, i, c);
+        }
+
+        groupCount += 3;
+      } // add a group to the geometry. this will ensure multi material support
+
+
+      scope.addGroup(groupStart, groupCount, top === true ? 1 : 2); // calculate new start value for groups
+
+      groupStart += groupCount;
+    }
+  }
+
+}
+
+exports.CylinderGeometry = exports.CylinderBufferGeometry = CylinderGeometry;
+
+class ConeGeometry extends CylinderGeometry {
+  constructor(radius = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2) {
+    super(0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength);
+    this.type = 'ConeGeometry';
+    this.parameters = {
+      radius: radius,
+      height: height,
+      radialSegments: radialSegments,
+      heightSegments: heightSegments,
+      openEnded: openEnded,
+      thetaStart: thetaStart,
+      thetaLength: thetaLength
+    };
+  }
+
+}
+
+exports.ConeGeometry = exports.ConeBufferGeometry = ConeGeometry;
+
+class PolyhedronGeometry extends BufferGeometry {
+  constructor(vertices, indices, radius = 1, detail = 0) {
+    super();
+    this.type = 'PolyhedronGeometry';
+    this.parameters = {
+      vertices: vertices,
+      indices: indices,
+      radius: radius,
+      detail: detail
+    }; // default buffer data
+
+    const vertexBuffer = [];
+    const uvBuffer = []; // the subdivision creates the vertex buffer data
+
+    subdivide(detail); // all vertices should lie on a conceptual sphere with a given radius
+
+    applyRadius(radius); // finally, create the uv data
+
+    generateUVs(); // build non-indexed geometry
+
+    this.setAttribute('position', new Float32BufferAttribute(vertexBuffer, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(vertexBuffer.slice(), 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvBuffer, 2));
+
+    if (detail === 0) {
+      this.computeVertexNormals(); // flat normals
+    } else {
+      this.normalizeNormals(); // smooth normals
+    } // helper functions
+
+
+    function subdivide(detail) {
+      const a = new Vector3();
+      const b = new Vector3();
+      const c = new Vector3(); // iterate over all faces and apply a subdivison with the given detail value
+
+      for (let i = 0; i < indices.length; i += 3) {
+        // get the vertices of the face
+        getVertexByIndex(indices[i + 0], a);
+        getVertexByIndex(indices[i + 1], b);
+        getVertexByIndex(indices[i + 2], c); // perform subdivision
+
+        subdivideFace(a, b, c, detail);
+      }
+    }
+
+    function subdivideFace(a, b, c, detail) {
+      const cols = detail + 1; // we use this multidimensional array as a data structure for creating the subdivision
+
+      const v = []; // construct all of the vertices for this subdivision
+
+      for (let i = 0; i <= cols; i++) {
+        v[i] = [];
+        const aj = a.clone().lerp(c, i / cols);
+        const bj = b.clone().lerp(c, i / cols);
+        const rows = cols - i;
+
+        for (let j = 0; j <= rows; j++) {
+          if (j === 0 && i === cols) {
+            v[i][j] = aj;
+          } else {
+            v[i][j] = aj.clone().lerp(bj, j / rows);
+          }
+        }
+      } // construct all of the faces
+
+
+      for (let i = 0; i < cols; i++) {
+        for (let j = 0; j < 2 * (cols - i) - 1; j++) {
+          const k = Math.floor(j / 2);
+
+          if (j % 2 === 0) {
+            pushVertex(v[i][k + 1]);
+            pushVertex(v[i + 1][k]);
+            pushVertex(v[i][k]);
+          } else {
+            pushVertex(v[i][k + 1]);
+            pushVertex(v[i + 1][k + 1]);
+            pushVertex(v[i + 1][k]);
+          }
+        }
+      }
+    }
+
+    function applyRadius(radius) {
+      const vertex = new Vector3(); // iterate over the entire buffer and apply the radius to each vertex
+
+      for (let i = 0; i < vertexBuffer.length; i += 3) {
+        vertex.x = vertexBuffer[i + 0];
+        vertex.y = vertexBuffer[i + 1];
+        vertex.z = vertexBuffer[i + 2];
+        vertex.normalize().multiplyScalar(radius);
+        vertexBuffer[i + 0] = vertex.x;
+        vertexBuffer[i + 1] = vertex.y;
+        vertexBuffer[i + 2] = vertex.z;
+      }
+    }
+
+    function generateUVs() {
+      const vertex = new Vector3();
+
+      for (let i = 0; i < vertexBuffer.length; i += 3) {
+        vertex.x = vertexBuffer[i + 0];
+        vertex.y = vertexBuffer[i + 1];
+        vertex.z = vertexBuffer[i + 2];
+        const u = azimuth(vertex) / 2 / Math.PI + 0.5;
+        const v = inclination(vertex) / Math.PI + 0.5;
+        uvBuffer.push(u, 1 - v);
+      }
+
+      correctUVs();
+      correctSeam();
+    }
+
+    function correctSeam() {
+      // handle case when face straddles the seam, see #3269
+      for (let i = 0; i < uvBuffer.length; i += 6) {
+        // uv data of a single face
+        const x0 = uvBuffer[i + 0];
+        const x1 = uvBuffer[i + 2];
+        const x2 = uvBuffer[i + 4];
+        const max = Math.max(x0, x1, x2);
+        const min = Math.min(x0, x1, x2); // 0.9 is somewhat arbitrary
+
+        if (max > 0.9 && min < 0.1) {
+          if (x0 < 0.2) uvBuffer[i + 0] += 1;
+          if (x1 < 0.2) uvBuffer[i + 2] += 1;
+          if (x2 < 0.2) uvBuffer[i + 4] += 1;
+        }
+      }
+    }
+
+    function pushVertex(vertex) {
+      vertexBuffer.push(vertex.x, vertex.y, vertex.z);
+    }
+
+    function getVertexByIndex(index, vertex) {
+      const stride = index * 3;
+      vertex.x = vertices[stride + 0];
+      vertex.y = vertices[stride + 1];
+      vertex.z = vertices[stride + 2];
+    }
+
+    function correctUVs() {
+      const a = new Vector3();
+      const b = new Vector3();
+      const c = new Vector3();
+      const centroid = new Vector3();
+      const uvA = new Vector2();
+      const uvB = new Vector2();
+      const uvC = new Vector2();
+
+      for (let i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6) {
+        a.set(vertexBuffer[i + 0], vertexBuffer[i + 1], vertexBuffer[i + 2]);
+        b.set(vertexBuffer[i + 3], vertexBuffer[i + 4], vertexBuffer[i + 5]);
+        c.set(vertexBuffer[i + 6], vertexBuffer[i + 7], vertexBuffer[i + 8]);
+        uvA.set(uvBuffer[j + 0], uvBuffer[j + 1]);
+        uvB.set(uvBuffer[j + 2], uvBuffer[j + 3]);
+        uvC.set(uvBuffer[j + 4], uvBuffer[j + 5]);
+        centroid.copy(a).add(b).add(c).divideScalar(3);
+        const azi = azimuth(centroid);
+        correctUV(uvA, j + 0, a, azi);
+        correctUV(uvB, j + 2, b, azi);
+        correctUV(uvC, j + 4, c, azi);
+      }
+    }
+
+    function correctUV(uv, stride, vector, azimuth) {
+      if (azimuth < 0 && uv.x === 1) {
+        uvBuffer[stride] = uv.x - 1;
+      }
+
+      if (vector.x === 0 && vector.z === 0) {
+        uvBuffer[stride] = azimuth / 2 / Math.PI + 0.5;
+      }
+    } // Angle around the Y axis, counter-clockwise when looking from above.
+
+
+    function azimuth(vector) {
+      return Math.atan2(vector.z, -vector.x);
+    } // Angle above the XZ plane.
+
+
+    function inclination(vector) {
+      return Math.atan2(-vector.y, Math.sqrt(vector.x * vector.x + vector.z * vector.z));
+    }
+  }
+
+}
+
+exports.PolyhedronGeometry = exports.PolyhedronBufferGeometry = PolyhedronGeometry;
+
+class DodecahedronGeometry extends PolyhedronGeometry {
+  constructor(radius = 1, detail = 0) {
+    const t = (1 + Math.sqrt(5)) / 2;
+    const r = 1 / t;
+    const vertices = [// (±1, ±1, ±1)
+    -1, -1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, 1, 1, -1, 1, 1, 1, // (0, ±1/φ, ±φ)
+    0, -r, -t, 0, -r, t, 0, r, -t, 0, r, t, // (±1/φ, ±φ, 0)
+    -r, -t, 0, -r, t, 0, r, -t, 0, r, t, 0, // (±φ, 0, ±1/φ)
+    -t, 0, -r, t, 0, -r, -t, 0, r, t, 0, r];
+    const indices = [3, 11, 7, 3, 7, 15, 3, 15, 13, 7, 19, 17, 7, 17, 6, 7, 6, 15, 17, 4, 8, 17, 8, 10, 17, 10, 6, 8, 0, 16, 8, 16, 2, 8, 2, 10, 0, 12, 1, 0, 1, 18, 0, 18, 16, 6, 10, 2, 6, 2, 13, 6, 13, 15, 2, 16, 18, 2, 18, 3, 2, 3, 13, 18, 1, 9, 18, 9, 11, 18, 11, 3, 4, 14, 12, 4, 12, 0, 4, 0, 8, 11, 9, 5, 11, 5, 19, 11, 19, 7, 19, 5, 14, 19, 14, 4, 19, 4, 17, 1, 12, 14, 1, 14, 5, 1, 5, 9];
+    super(vertices, indices, radius, detail);
+    this.type = 'DodecahedronGeometry';
+    this.parameters = {
+      radius: radius,
+      detail: detail
+    };
+  }
+
+}
+
+exports.DodecahedronGeometry = exports.DodecahedronBufferGeometry = DodecahedronGeometry;
+
+const _v0$2 = new Vector3();
+
+const _v1$5 = new Vector3();
+
+const _normal$1 = new Vector3();
+
+const _triangle = new Triangle();
+
+class EdgesGeometry extends BufferGeometry {
+  constructor(geometry, thresholdAngle) {
+    super();
+    this.type = 'EdgesGeometry';
+    this.parameters = {
+      thresholdAngle: thresholdAngle
+    };
+    thresholdAngle = thresholdAngle !== undefined ? thresholdAngle : 1;
+
+    if (geometry.isGeometry === true) {
+      console.error('THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
+      return;
+    }
+
+    const precisionPoints = 4;
+    const precision = Math.pow(10, precisionPoints);
+    const thresholdDot = Math.cos(MathUtils.DEG2RAD * thresholdAngle);
+    const indexAttr = geometry.getIndex();
+    const positionAttr = geometry.getAttribute('position');
+    const indexCount = indexAttr ? indexAttr.count : positionAttr.count;
+    const indexArr = [0, 0, 0];
+    const vertKeys = ['a', 'b', 'c'];
+    const hashes = new Array(3);
+    const edgeData = {};
+    const vertices = [];
+
+    for (let i = 0; i < indexCount; i += 3) {
+      if (indexAttr) {
+        indexArr[0] = indexAttr.getX(i);
+        indexArr[1] = indexAttr.getX(i + 1);
+        indexArr[2] = indexAttr.getX(i + 2);
+      } else {
+        indexArr[0] = i;
+        indexArr[1] = i + 1;
+        indexArr[2] = i + 2;
+      }
+
+      const {
+        a,
+        b,
+        c
+      } = _triangle;
+      a.fromBufferAttribute(positionAttr, indexArr[0]);
+      b.fromBufferAttribute(positionAttr, indexArr[1]);
+      c.fromBufferAttribute(positionAttr, indexArr[2]);
+
+      _triangle.getNormal(_normal$1); // create hashes for the edge from the vertices
+
+
+      hashes[0] = `${Math.round(a.x * precision)},${Math.round(a.y * precision)},${Math.round(a.z * precision)}`;
+      hashes[1] = `${Math.round(b.x * precision)},${Math.round(b.y * precision)},${Math.round(b.z * precision)}`;
+      hashes[2] = `${Math.round(c.x * precision)},${Math.round(c.y * precision)},${Math.round(c.z * precision)}`; // skip degenerate triangles
+
+      if (hashes[0] === hashes[1] || hashes[1] === hashes[2] || hashes[2] === hashes[0]) {
+        continue;
+      } // iterate over every edge
+
+
+      for (let j = 0; j < 3; j++) {
+        // get the first and next vertex making up the edge
+        const jNext = (j + 1) % 3;
+        const vecHash0 = hashes[j];
+        const vecHash1 = hashes[jNext];
+        const v0 = _triangle[vertKeys[j]];
+        const v1 = _triangle[vertKeys[jNext]];
+        const hash = `${vecHash0}_${vecHash1}`;
+        const reverseHash = `${vecHash1}_${vecHash0}`;
+
+        if (reverseHash in edgeData && edgeData[reverseHash]) {
+          // if we found a sibling edge add it into the vertex array if
+          // it meets the angle threshold and delete the edge from the map.
+          if (_normal$1.dot(edgeData[reverseHash].normal) <= thresholdDot) {
+            vertices.push(v0.x, v0.y, v0.z);
+            vertices.push(v1.x, v1.y, v1.z);
+          }
+
+          edgeData[reverseHash] = null;
+        } else if (!(hash in edgeData)) {
+          // if we've already got an edge here then skip adding a new one
+          edgeData[hash] = {
+            index0: indexArr[j],
+            index1: indexArr[jNext],
+            normal: _normal$1.clone()
+          };
+        }
+      }
+    } // iterate over all remaining, unmatched edges and add them to the vertex array
+
+
+    for (const key in edgeData) {
+      if (edgeData[key]) {
+        const {
+          index0,
+          index1
+        } = edgeData[key];
+
+        _v0$2.fromBufferAttribute(positionAttr, index0);
+
+        _v1$5.fromBufferAttribute(positionAttr, index1);
+
+        vertices.push(_v0$2.x, _v0$2.y, _v0$2.z);
+        vertices.push(_v1$5.x, _v1$5.y, _v1$5.z);
+      }
+    }
+
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+  }
+
+}
+/**
+ * Port from https://github.com/mapbox/earcut (v2.2.2)
+ */
+
+
+exports.EdgesGeometry = EdgesGeometry;
+const Earcut = {
+  triangulate: function (data, holeIndices, dim) {
+    dim = dim || 2;
+    const hasHoles = holeIndices && holeIndices.length;
+    const outerLen = hasHoles ? holeIndices[0] * dim : data.length;
+    let outerNode = linkedList(data, 0, outerLen, dim, true);
+    const triangles = [];
+    if (!outerNode || outerNode.next === outerNode.prev) return triangles;
+    let minX, minY, maxX, maxY, x, y, invSize;
+    if (hasHoles) outerNode = eliminateHoles(data, holeIndices, outerNode, dim); // if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
+
+    if (data.length > 80 * dim) {
+      minX = maxX = data[0];
+      minY = maxY = data[1];
+
+      for (let i = dim; i < outerLen; i += dim) {
+        x = data[i];
+        y = data[i + 1];
+        if (x < minX) minX = x;
+        if (y < minY) minY = y;
+        if (x > maxX) maxX = x;
+        if (y > maxY) maxY = y;
+      } // minX, minY and invSize are later used to transform coords into integers for z-order calculation
+
+
+      invSize = Math.max(maxX - minX, maxY - minY);
+      invSize = invSize !== 0 ? 1 / invSize : 0;
+    }
+
+    earcutLinked(outerNode, triangles, dim, minX, minY, invSize);
+    return triangles;
+  }
+}; // create a circular doubly linked list from polygon points in the specified winding order
+
+function linkedList(data, start, end, dim, clockwise) {
+  let i, last;
+
+  if (clockwise === signedArea(data, start, end, dim) > 0) {
+    for (i = start; i < end; i += dim) last = insertNode(i, data[i], data[i + 1], last);
+  } else {
+    for (i = end - dim; i >= start; i -= dim) last = insertNode(i, data[i], data[i + 1], last);
+  }
+
+  if (last && equals(last, last.next)) {
+    removeNode(last);
+    last = last.next;
+  }
+
+  return last;
+} // eliminate colinear or duplicate points
+
+
+function filterPoints(start, end) {
+  if (!start) return start;
+  if (!end) end = start;
+  let p = start,
+      again;
+
+  do {
+    again = false;
+
+    if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) {
+      removeNode(p);
+      p = end = p.prev;
+      if (p === p.next) break;
+      again = true;
+    } else {
+      p = p.next;
+    }
+  } while (again || p !== end);
+
+  return end;
+} // main ear slicing loop which triangulates a polygon (given as a linked list)
+
+
+function earcutLinked(ear, triangles, dim, minX, minY, invSize, pass) {
+  if (!ear) return; // interlink polygon nodes in z-order
+
+  if (!pass && invSize) indexCurve(ear, minX, minY, invSize);
+  let stop = ear,
+      prev,
+      next; // iterate through ears, slicing them one by one
+
+  while (ear.prev !== ear.next) {
+    prev = ear.prev;
+    next = ear.next;
+
+    if (invSize ? isEarHashed(ear, minX, minY, invSize) : isEar(ear)) {
+      // cut off the triangle
+      triangles.push(prev.i / dim);
+      triangles.push(ear.i / dim);
+      triangles.push(next.i / dim);
+      removeNode(ear); // skipping the next vertex leads to less sliver triangles
+
+      ear = next.next;
+      stop = next.next;
+      continue;
+    }
+
+    ear = next; // if we looped through the whole remaining polygon and can't find any more ears
+
+    if (ear === stop) {
+      // try filtering points and slicing again
+      if (!pass) {
+        earcutLinked(filterPoints(ear), triangles, dim, minX, minY, invSize, 1); // if this didn't work, try curing all small self-intersections locally
+      } else if (pass === 1) {
+        ear = cureLocalIntersections(filterPoints(ear), triangles, dim);
+        earcutLinked(ear, triangles, dim, minX, minY, invSize, 2); // as a last resort, try splitting the remaining polygon into two
+      } else if (pass === 2) {
+        splitEarcut(ear, triangles, dim, minX, minY, invSize);
+      }
+
+      break;
+    }
+  }
+} // check whether a polygon node forms a valid ear with adjacent nodes
+
+
+function isEar(ear) {
+  const a = ear.prev,
+        b = ear,
+        c = ear.next;
+  if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
+  // now make sure we don't have other points inside the potential ear
+
+  let p = ear.next.next;
+
+  while (p !== ear.prev) {
+    if (pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
+    p = p.next;
+  }
+
+  return true;
+}
+
+function isEarHashed(ear, minX, minY, invSize) {
+  const a = ear.prev,
+        b = ear,
+        c = ear.next;
+  if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
+  // triangle bbox; min & max are calculated like this for speed
+
+  const minTX = a.x < b.x ? a.x < c.x ? a.x : c.x : b.x < c.x ? b.x : c.x,
+        minTY = a.y < b.y ? a.y < c.y ? a.y : c.y : b.y < c.y ? b.y : c.y,
+        maxTX = a.x > b.x ? a.x > c.x ? a.x : c.x : b.x > c.x ? b.x : c.x,
+        maxTY = a.y > b.y ? a.y > c.y ? a.y : c.y : b.y > c.y ? b.y : c.y; // z-order range for the current triangle bbox;
+
+  const minZ = zOrder(minTX, minTY, minX, minY, invSize),
+        maxZ = zOrder(maxTX, maxTY, minX, minY, invSize);
+  let p = ear.prevZ,
+      n = ear.nextZ; // look for points inside the triangle in both directions
+
+  while (p && p.z >= minZ && n && n.z <= maxZ) {
+    if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
+    p = p.prevZ;
+    if (n !== ear.prev && n !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && area(n.prev, n, n.next) >= 0) return false;
+    n = n.nextZ;
+  } // look for remaining points in decreasing z-order
+
+
+  while (p && p.z >= minZ) {
+    if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
+    p = p.prevZ;
+  } // look for remaining points in increasing z-order
+
+
+  while (n && n.z <= maxZ) {
+    if (n !== ear.prev && n !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && area(n.prev, n, n.next) >= 0) return false;
+    n = n.nextZ;
+  }
+
+  return true;
+} // go through all polygon nodes and cure small local self-intersections
+
+
+function cureLocalIntersections(start, triangles, dim) {
+  let p = start;
+
+  do {
+    const a = p.prev,
+          b = p.next.next;
+
+    if (!equals(a, b) && intersects(a, p, p.next, b) && locallyInside(a, b) && locallyInside(b, a)) {
+      triangles.push(a.i / dim);
+      triangles.push(p.i / dim);
+      triangles.push(b.i / dim); // remove two nodes involved
+
+      removeNode(p);
+      removeNode(p.next);
+      p = start = b;
+    }
+
+    p = p.next;
+  } while (p !== start);
+
+  return filterPoints(p);
+} // try splitting polygon into two and triangulate them independently
+
+
+function splitEarcut(start, triangles, dim, minX, minY, invSize) {
+  // look for a valid diagonal that divides the polygon into two
+  let a = start;
+
+  do {
+    let b = a.next.next;
+
+    while (b !== a.prev) {
+      if (a.i !== b.i && isValidDiagonal(a, b)) {
+        // split the polygon in two by the diagonal
+        let c = splitPolygon(a, b); // filter colinear points around the cuts
+
+        a = filterPoints(a, a.next);
+        c = filterPoints(c, c.next); // run earcut on each half
+
+        earcutLinked(a, triangles, dim, minX, minY, invSize);
+        earcutLinked(c, triangles, dim, minX, minY, invSize);
+        return;
+      }
+
+      b = b.next;
+    }
+
+    a = a.next;
+  } while (a !== start);
+} // link every hole into the outer loop, producing a single-ring polygon without holes
+
+
+function eliminateHoles(data, holeIndices, outerNode, dim) {
+  const queue = [];
+  let i, len, start, end, list;
+
+  for (i = 0, len = holeIndices.length; i < len; i++) {
+    start = holeIndices[i] * dim;
+    end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
+    list = linkedList(data, start, end, dim, false);
+    if (list === list.next) list.steiner = true;
+    queue.push(getLeftmost(list));
+  }
+
+  queue.sort(compareX); // process holes from left to right
+
+  for (i = 0; i < queue.length; i++) {
+    eliminateHole(queue[i], outerNode);
+    outerNode = filterPoints(outerNode, outerNode.next);
+  }
+
+  return outerNode;
+}
+
+function compareX(a, b) {
+  return a.x - b.x;
+} // find a bridge between vertices that connects hole with an outer ring and and link it
+
+
+function eliminateHole(hole, outerNode) {
+  outerNode = findHoleBridge(hole, outerNode);
+
+  if (outerNode) {
+    const b = splitPolygon(outerNode, hole); // filter collinear points around the cuts
+
+    filterPoints(outerNode, outerNode.next);
+    filterPoints(b, b.next);
+  }
+} // David Eberly's algorithm for finding a bridge between hole and outer polygon
+
+
+function findHoleBridge(hole, outerNode) {
+  let p = outerNode;
+  const hx = hole.x;
+  const hy = hole.y;
+  let qx = -Infinity,
+      m; // find a segment intersected by a ray from the hole's leftmost point to the left;
+  // segment's endpoint with lesser x will be potential connection point
+
+  do {
+    if (hy <= p.y && hy >= p.next.y && p.next.y !== p.y) {
+      const x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y);
+
+      if (x <= hx && x > qx) {
+        qx = x;
+
+        if (x === hx) {
+          if (hy === p.y) return p;
+          if (hy === p.next.y) return p.next;
+        }
+
+        m = p.x < p.next.x ? p : p.next;
+      }
+    }
+
+    p = p.next;
+  } while (p !== outerNode);
+
+  if (!m) return null;
+  if (hx === qx) return m; // hole touches outer segment; pick leftmost endpoint
+  // look for points inside the triangle of hole point, segment intersection and endpoint;
+  // if there are no points found, we have a valid connection;
+  // otherwise choose the point of the minimum angle with the ray as connection point
+
+  const stop = m,
+        mx = m.x,
+        my = m.y;
+  let tanMin = Infinity,
+      tan;
+  p = m;
+
+  do {
+    if (hx >= p.x && p.x >= mx && hx !== p.x && pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) {
+      tan = Math.abs(hy - p.y) / (hx - p.x); // tangential
+
+      if (locallyInside(p, hole) && (tan < tanMin || tan === tanMin && (p.x > m.x || p.x === m.x && sectorContainsSector(m, p)))) {
+        m = p;
+        tanMin = tan;
+      }
+    }
+
+    p = p.next;
+  } while (p !== stop);
+
+  return m;
+} // whether sector in vertex m contains sector in vertex p in the same coordinates
+
+
+function sectorContainsSector(m, p) {
+  return area(m.prev, m, p.prev) < 0 && area(p.next, m, m.next) < 0;
+} // interlink polygon nodes in z-order
+
+
+function indexCurve(start, minX, minY, invSize) {
+  let p = start;
+
+  do {
+    if (p.z === null) p.z = zOrder(p.x, p.y, minX, minY, invSize);
+    p.prevZ = p.prev;
+    p.nextZ = p.next;
+    p = p.next;
+  } while (p !== start);
+
+  p.prevZ.nextZ = null;
+  p.prevZ = null;
+  sortLinked(p);
+} // Simon Tatham's linked list merge sort algorithm
+// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
+
+
+function sortLinked(list) {
+  let i,
+      p,
+      q,
+      e,
+      tail,
+      numMerges,
+      pSize,
+      qSize,
+      inSize = 1;
+
+  do {
+    p = list;
+    list = null;
+    tail = null;
+    numMerges = 0;
+
+    while (p) {
+      numMerges++;
+      q = p;
+      pSize = 0;
+
+      for (i = 0; i < inSize; i++) {
+        pSize++;
+        q = q.nextZ;
+        if (!q) break;
+      }
+
+      qSize = inSize;
+
+      while (pSize > 0 || qSize > 0 && q) {
+        if (pSize !== 0 && (qSize === 0 || !q || p.z <= q.z)) {
+          e = p;
+          p = p.nextZ;
+          pSize--;
+        } else {
+          e = q;
+          q = q.nextZ;
+          qSize--;
+        }
+
+        if (tail) tail.nextZ = e;else list = e;
+        e.prevZ = tail;
+        tail = e;
+      }
+
+      p = q;
+    }
+
+    tail.nextZ = null;
+    inSize *= 2;
+  } while (numMerges > 1);
+
+  return list;
+} // z-order of a point given coords and inverse of the longer side of data bbox
+
+
+function zOrder(x, y, minX, minY, invSize) {
+  // coords are transformed into non-negative 15-bit integer range
+  x = 32767 * (x - minX) * invSize;
+  y = 32767 * (y - minY) * invSize;
+  x = (x | x << 8) & 0x00FF00FF;
+  x = (x | x << 4) & 0x0F0F0F0F;
+  x = (x | x << 2) & 0x33333333;
+  x = (x | x << 1) & 0x55555555;
+  y = (y | y << 8) & 0x00FF00FF;
+  y = (y | y << 4) & 0x0F0F0F0F;
+  y = (y | y << 2) & 0x33333333;
+  y = (y | y << 1) & 0x55555555;
+  return x | y << 1;
+} // find the leftmost node of a polygon ring
+
+
+function getLeftmost(start) {
+  let p = start,
+      leftmost = start;
+
+  do {
+    if (p.x < leftmost.x || p.x === leftmost.x && p.y < leftmost.y) leftmost = p;
+    p = p.next;
+  } while (p !== start);
+
+  return leftmost;
+} // check if a point lies within a convex triangle
+
+
+function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) {
+  return (cx - px) * (ay - py) - (ax - px) * (cy - py) >= 0 && (ax - px) * (by - py) - (bx - px) * (ay - py) >= 0 && (bx - px) * (cy - py) - (cx - px) * (by - py) >= 0;
+} // check if a diagonal between two polygon nodes is valid (lies in polygon interior)
+
+
+function isValidDiagonal(a, b) {
+  return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && ( // dones't intersect other edges
+  locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b) && ( // locally visible
+  area(a.prev, a, b.prev) || area(a, b.prev, b)) || // does not create opposite-facing sectors
+  equals(a, b) && area(a.prev, a, a.next) > 0 && area(b.prev, b, b.next) > 0); // special zero-length case
+} // signed area of a triangle
+
+
+function area(p, q, r) {
+  return (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y);
+} // check if two points are equal
+
+
+function equals(p1, p2) {
+  return p1.x === p2.x && p1.y === p2.y;
+} // check if two segments intersect
+
+
+function intersects(p1, q1, p2, q2) {
+  const o1 = sign(area(p1, q1, p2));
+  const o2 = sign(area(p1, q1, q2));
+  const o3 = sign(area(p2, q2, p1));
+  const o4 = sign(area(p2, q2, q1));
+  if (o1 !== o2 && o3 !== o4) return true; // general case
+
+  if (o1 === 0 && onSegment(p1, p2, q1)) return true; // p1, q1 and p2 are collinear and p2 lies on p1q1
+
+  if (o2 === 0 && onSegment(p1, q2, q1)) return true; // p1, q1 and q2 are collinear and q2 lies on p1q1
+
+  if (o3 === 0 && onSegment(p2, p1, q2)) return true; // p2, q2 and p1 are collinear and p1 lies on p2q2
+
+  if (o4 === 0 && onSegment(p2, q1, q2)) return true; // p2, q2 and q1 are collinear and q1 lies on p2q2
+
+  return false;
+} // for collinear points p, q, r, check if point q lies on segment pr
+
+
+function onSegment(p, q, r) {
+  return q.x <= Math.max(p.x, r.x) && q.x >= Math.min(p.x, r.x) && q.y <= Math.max(p.y, r.y) && q.y >= Math.min(p.y, r.y);
+}
+
+function sign(num) {
+  return num > 0 ? 1 : num < 0 ? -1 : 0;
+} // check if a polygon diagonal intersects any polygon segments
+
+
+function intersectsPolygon(a, b) {
+  let p = a;
+
+  do {
+    if (p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i && intersects(p, p.next, a, b)) return true;
+    p = p.next;
+  } while (p !== a);
+
+  return false;
+} // check if a polygon diagonal is locally inside the polygon
+
+
+function locallyInside(a, b) {
+  return area(a.prev, a, a.next) < 0 ? area(a, b, a.next) >= 0 && area(a, a.prev, b) >= 0 : area(a, b, a.prev) < 0 || area(a, a.next, b) < 0;
+} // check if the middle point of a polygon diagonal is inside the polygon
+
+
+function middleInside(a, b) {
+  let p = a,
+      inside = false;
+  const px = (a.x + b.x) / 2,
+        py = (a.y + b.y) / 2;
+
+  do {
+    if (p.y > py !== p.next.y > py && p.next.y !== p.y && px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x) inside = !inside;
+    p = p.next;
+  } while (p !== a);
+
+  return inside;
+} // link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
+// if one belongs to the outer ring and another to a hole, it merges it into a single ring
+
+
+function splitPolygon(a, b) {
+  const a2 = new Node(a.i, a.x, a.y),
+        b2 = new Node(b.i, b.x, b.y),
+        an = a.next,
+        bp = b.prev;
+  a.next = b;
+  b.prev = a;
+  a2.next = an;
+  an.prev = a2;
+  b2.next = a2;
+  a2.prev = b2;
+  bp.next = b2;
+  b2.prev = bp;
+  return b2;
+} // create a node and optionally link it with previous one (in a circular doubly linked list)
+
+
+function insertNode(i, x, y, last) {
+  const p = new Node(i, x, y);
+
+  if (!last) {
+    p.prev = p;
+    p.next = p;
+  } else {
+    p.next = last.next;
+    p.prev = last;
+    last.next.prev = p;
+    last.next = p;
+  }
+
+  return p;
+}
+
+function removeNode(p) {
+  p.next.prev = p.prev;
+  p.prev.next = p.next;
+  if (p.prevZ) p.prevZ.nextZ = p.nextZ;
+  if (p.nextZ) p.nextZ.prevZ = p.prevZ;
+}
+
+function Node(i, x, y) {
+  // vertex index in coordinates array
+  this.i = i; // vertex coordinates
+
+  this.x = x;
+  this.y = y; // previous and next vertex nodes in a polygon ring
+
+  this.prev = null;
+  this.next = null; // z-order curve value
+
+  this.z = null; // previous and next nodes in z-order
+
+  this.prevZ = null;
+  this.nextZ = null; // indicates whether this is a steiner point
+
+  this.steiner = false;
+}
+
+function signedArea(data, start, end, dim) {
+  let sum = 0;
+
+  for (let i = start, j = end - dim; i < end; i += dim) {
+    sum += (data[j] - data[i]) * (data[i + 1] + data[j + 1]);
+    j = i;
+  }
+
+  return sum;
+}
+
+const ShapeUtils = {
+  // calculate area of the contour polygon
+  area: function (contour) {
+    const n = contour.length;
+    let a = 0.0;
+
+    for (let p = n - 1, q = 0; q < n; p = q++) {
+      a += contour[p].x * contour[q].y - contour[q].x * contour[p].y;
+    }
+
+    return a * 0.5;
+  },
+  isClockWise: function (pts) {
+    return ShapeUtils.area(pts) < 0;
+  },
+  triangulateShape: function (contour, holes) {
+    const vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]
+
+    const holeIndices = []; // array of hole indices
+
+    const faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]
+
+    removeDupEndPts(contour);
+    addContour(vertices, contour); //
+
+    let holeIndex = contour.length;
+    holes.forEach(removeDupEndPts);
+
+    for (let i = 0; i < holes.length; i++) {
+      holeIndices.push(holeIndex);
+      holeIndex += holes[i].length;
+      addContour(vertices, holes[i]);
+    } //
+
+
+    const triangles = Earcut.triangulate(vertices, holeIndices); //
+
+    for (let i = 0; i < triangles.length; i += 3) {
+      faces.push(triangles.slice(i, i + 3));
+    }
+
+    return faces;
+  }
+};
+exports.ShapeUtils = ShapeUtils;
+
+function removeDupEndPts(points) {
+  const l = points.length;
+
+  if (l > 2 && points[l - 1].equals(points[0])) {
+    points.pop();
+  }
+}
+
+function addContour(vertices, contour) {
+  for (let i = 0; i < contour.length; i++) {
+    vertices.push(contour[i].x);
+    vertices.push(contour[i].y);
+  }
+}
+/**
+ * Creates extruded geometry from a path shape.
+ *
+ * parameters = {
+ *
+ *  curveSegments: <int>, // number of points on the curves
+ *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
+ *  depth: <float>, // Depth to extrude the shape
+ *
+ *  bevelEnabled: <bool>, // turn on bevel
+ *  bevelThickness: <float>, // how deep into the original shape bevel goes
+ *  bevelSize: <float>, // how far from shape outline (including bevelOffset) is bevel
+ *  bevelOffset: <float>, // how far from shape outline does bevel start
+ *  bevelSegments: <int>, // number of bevel layers
+ *
+ *  extrudePath: <THREE.Curve> // curve to extrude shape along
+ *
+ *  UVGenerator: <Object> // object that provides UV generator functions
+ *
+ * }
+ */
+
+
+class ExtrudeGeometry extends BufferGeometry {
+  constructor(shapes, options) {
+    super();
+    this.type = 'ExtrudeGeometry';
+    this.parameters = {
+      shapes: shapes,
+      options: options
+    };
+    shapes = Array.isArray(shapes) ? shapes : [shapes];
+    const scope = this;
+    const verticesArray = [];
+    const uvArray = [];
+
+    for (let i = 0, l = shapes.length; i < l; i++) {
+      const shape = shapes[i];
+      addShape(shape);
+    } // build geometry
+
+
+    this.setAttribute('position', new Float32BufferAttribute(verticesArray, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvArray, 2));
+    this.computeVertexNormals(); // functions
+
+    function addShape(shape) {
+      const placeholder = []; // options
+
+      const curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
+      const steps = options.steps !== undefined ? options.steps : 1;
+      let depth = options.depth !== undefined ? options.depth : 100;
+      let bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;
+      let bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6;
+      let bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2;
+      let bevelOffset = options.bevelOffset !== undefined ? options.bevelOffset : 0;
+      let bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;
+      const extrudePath = options.extrudePath;
+      const uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator; // deprecated options
+
+      if (options.amount !== undefined) {
+        console.warn('THREE.ExtrudeBufferGeometry: amount has been renamed to depth.');
+        depth = options.amount;
+      } //
+
+
+      let extrudePts,
+          extrudeByPath = false;
+      let splineTube, binormal, normal, position2;
+
+      if (extrudePath) {
+        extrudePts = extrudePath.getSpacedPoints(steps);
+        extrudeByPath = true;
+        bevelEnabled = false; // bevels not supported for path extrusion
+        // SETUP TNB variables
+        // TODO1 - have a .isClosed in spline?
+
+        splineTube = extrudePath.computeFrenetFrames(steps, false); // console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);
+
+        binormal = new Vector3();
+        normal = new Vector3();
+        position2 = new Vector3();
+      } // Safeguards if bevels are not enabled
+
+
+      if (!bevelEnabled) {
+        bevelSegments = 0;
+        bevelThickness = 0;
+        bevelSize = 0;
+        bevelOffset = 0;
+      } // Variables initialization
+
+
+      const shapePoints = shape.extractPoints(curveSegments);
+      let vertices = shapePoints.shape;
+      const holes = shapePoints.holes;
+      const reverse = !ShapeUtils.isClockWise(vertices);
+
+      if (reverse) {
+        vertices = vertices.reverse(); // Maybe we should also check if holes are in the opposite direction, just to be safe ...
+
+        for (let h = 0, hl = holes.length; h < hl; h++) {
+          const ahole = holes[h];
+
+          if (ShapeUtils.isClockWise(ahole)) {
+            holes[h] = ahole.reverse();
+          }
+        }
+      }
+
+      const faces = ShapeUtils.triangulateShape(vertices, holes);
+      /* Vertices */
+
+      const contour = vertices; // vertices has all points but contour has only points of circumference
+
+      for (let h = 0, hl = holes.length; h < hl; h++) {
+        const ahole = holes[h];
+        vertices = vertices.concat(ahole);
+      }
+
+      function scalePt2(pt, vec, size) {
+        if (!vec) console.error('THREE.ExtrudeGeometry: vec does not exist');
+        return vec.clone().multiplyScalar(size).add(pt);
+      }
+
+      const vlen = vertices.length,
+            flen = faces.length; // Find directions for point movement
+
+      function getBevelVec(inPt, inPrev, inNext) {
+        // computes for inPt the corresponding point inPt' on a new contour
+        //   shifted by 1 unit (length of normalized vector) to the left
+        // if we walk along contour clockwise, this new contour is outside the old one
+        //
+        // inPt' is the intersection of the two lines parallel to the two
+        //  adjacent edges of inPt at a distance of 1 unit on the left side.
+        let v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt
+        // good reading for geometry algorithms (here: line-line intersection)
+        // http://geomalgorithms.com/a05-_intersect-1.html
+
+        const v_prev_x = inPt.x - inPrev.x,
+              v_prev_y = inPt.y - inPrev.y;
+        const v_next_x = inNext.x - inPt.x,
+              v_next_y = inNext.y - inPt.y;
+        const v_prev_lensq = v_prev_x * v_prev_x + v_prev_y * v_prev_y; // check for collinear edges
+
+        const collinear0 = v_prev_x * v_next_y - v_prev_y * v_next_x;
+
+        if (Math.abs(collinear0) > Number.EPSILON) {
+          // not collinear
+          // length of vectors for normalizing
+          const v_prev_len = Math.sqrt(v_prev_lensq);
+          const v_next_len = Math.sqrt(v_next_x * v_next_x + v_next_y * v_next_y); // shift adjacent points by unit vectors to the left
+
+          const ptPrevShift_x = inPrev.x - v_prev_y / v_prev_len;
+          const ptPrevShift_y = inPrev.y + v_prev_x / v_prev_len;
+          const ptNextShift_x = inNext.x - v_next_y / v_next_len;
+          const ptNextShift_y = inNext.y + v_next_x / v_next_len; // scaling factor for v_prev to intersection point
+
+          const sf = ((ptNextShift_x - ptPrevShift_x) * v_next_y - (ptNextShift_y - ptPrevShift_y) * v_next_x) / (v_prev_x * v_next_y - v_prev_y * v_next_x); // vector from inPt to intersection point
+
+          v_trans_x = ptPrevShift_x + v_prev_x * sf - inPt.x;
+          v_trans_y = ptPrevShift_y + v_prev_y * sf - inPt.y; // Don't normalize!, otherwise sharp corners become ugly
+          //  but prevent crazy spikes
+
+          const v_trans_lensq = v_trans_x * v_trans_x + v_trans_y * v_trans_y;
+
+          if (v_trans_lensq <= 2) {
+            return new Vector2(v_trans_x, v_trans_y);
+          } else {
+            shrink_by = Math.sqrt(v_trans_lensq / 2);
+          }
+        } else {
+          // handle special case of collinear edges
+          let direction_eq = false; // assumes: opposite
+
+          if (v_prev_x > Number.EPSILON) {
+            if (v_next_x > Number.EPSILON) {
+              direction_eq = true;
+            }
+          } else {
+            if (v_prev_x < -Number.EPSILON) {
+              if (v_next_x < -Number.EPSILON) {
+                direction_eq = true;
+              }
+            } else {
+              if (Math.sign(v_prev_y) === Math.sign(v_next_y)) {
+                direction_eq = true;
+              }
+            }
+          }
+
+          if (direction_eq) {
+            // console.log("Warning: lines are a straight sequence");
+            v_trans_x = -v_prev_y;
+            v_trans_y = v_prev_x;
+            shrink_by = Math.sqrt(v_prev_lensq);
+          } else {
+            // console.log("Warning: lines are a straight spike");
+            v_trans_x = v_prev_x;
+            v_trans_y = v_prev_y;
+            shrink_by = Math.sqrt(v_prev_lensq / 2);
+          }
+        }
+
+        return new Vector2(v_trans_x / shrink_by, v_trans_y / shrink_by);
+      }
+
+      const contourMovements = [];
+
+      for (let i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i++, j++, k++) {
+        if (j === il) j = 0;
+        if (k === il) k = 0; //  (j)---(i)---(k)
+        // console.log('i,j,k', i, j , k)
+
+        contourMovements[i] = getBevelVec(contour[i], contour[j], contour[k]);
+      }
+
+      const holesMovements = [];
+      let oneHoleMovements,
+          verticesMovements = contourMovements.concat();
+
+      for (let h = 0, hl = holes.length; h < hl; h++) {
+        const ahole = holes[h];
+        oneHoleMovements = [];
+
+        for (let i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i++, j++, k++) {
+          if (j === il) j = 0;
+          if (k === il) k = 0; //  (j)---(i)---(k)
+
+          oneHoleMovements[i] = getBevelVec(ahole[i], ahole[j], ahole[k]);
+        }
+
+        holesMovements.push(oneHoleMovements);
+        verticesMovements = verticesMovements.concat(oneHoleMovements);
+      } // Loop bevelSegments, 1 for the front, 1 for the back
+
+
+      for (let b = 0; b < bevelSegments; b++) {
+        //for ( b = bevelSegments; b > 0; b -- ) {
+        const t = b / bevelSegments;
+        const z = bevelThickness * Math.cos(t * Math.PI / 2);
+        const bs = bevelSize * Math.sin(t * Math.PI / 2) + bevelOffset; // contract shape
+
+        for (let i = 0, il = contour.length; i < il; i++) {
+          const vert = scalePt2(contour[i], contourMovements[i], bs);
+          v(vert.x, vert.y, -z);
+        } // expand holes
+
+
+        for (let h = 0, hl = holes.length; h < hl; h++) {
+          const ahole = holes[h];
+          oneHoleMovements = holesMovements[h];
+
+          for (let i = 0, il = ahole.length; i < il; i++) {
+            const vert = scalePt2(ahole[i], oneHoleMovements[i], bs);
+            v(vert.x, vert.y, -z);
+          }
+        }
+      }
+
+      const bs = bevelSize + bevelOffset; // Back facing vertices
+
+      for (let i = 0; i < vlen; i++) {
+        const vert = bevelEnabled ? scalePt2(vertices[i], verticesMovements[i], bs) : vertices[i];
+
+        if (!extrudeByPath) {
+          v(vert.x, vert.y, 0);
+        } else {
+          // v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );
+          normal.copy(splineTube.normals[0]).multiplyScalar(vert.x);
+          binormal.copy(splineTube.binormals[0]).multiplyScalar(vert.y);
+          position2.copy(extrudePts[0]).add(normal).add(binormal);
+          v(position2.x, position2.y, position2.z);
+        }
+      } // Add stepped vertices...
+      // Including front facing vertices
+
+
+      for (let s = 1; s <= steps; s++) {
+        for (let i = 0; i < vlen; i++) {
+          const vert = bevelEnabled ? scalePt2(vertices[i], verticesMovements[i], bs) : vertices[i];
+
+          if (!extrudeByPath) {
+            v(vert.x, vert.y, depth / steps * s);
+          } else {
+            // v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );
+            normal.copy(splineTube.normals[s]).multiplyScalar(vert.x);
+            binormal.copy(splineTube.binormals[s]).multiplyScalar(vert.y);
+            position2.copy(extrudePts[s]).add(normal).add(binormal);
+            v(position2.x, position2.y, position2.z);
+          }
+        }
+      } // Add bevel segments planes
+      //for ( b = 1; b <= bevelSegments; b ++ ) {
+
+
+      for (let b = bevelSegments - 1; b >= 0; b--) {
+        const t = b / bevelSegments;
+        const z = bevelThickness * Math.cos(t * Math.PI / 2);
+        const bs = bevelSize * Math.sin(t * Math.PI / 2) + bevelOffset; // contract shape
+
+        for (let i = 0, il = contour.length; i < il; i++) {
+          const vert = scalePt2(contour[i], contourMovements[i], bs);
+          v(vert.x, vert.y, depth + z);
+        } // expand holes
+
+
+        for (let h = 0, hl = holes.length; h < hl; h++) {
+          const ahole = holes[h];
+          oneHoleMovements = holesMovements[h];
+
+          for (let i = 0, il = ahole.length; i < il; i++) {
+            const vert = scalePt2(ahole[i], oneHoleMovements[i], bs);
+
+            if (!extrudeByPath) {
+              v(vert.x, vert.y, depth + z);
+            } else {
+              v(vert.x, vert.y + extrudePts[steps - 1].y, extrudePts[steps - 1].x + z);
+            }
+          }
+        }
+      }
+      /* Faces */
+      // Top and bottom faces
+
+
+      buildLidFaces(); // Sides faces
+
+      buildSideFaces(); /////  Internal functions
+
+      function buildLidFaces() {
+        const start = verticesArray.length / 3;
+
+        if (bevelEnabled) {
+          let layer = 0; // steps + 1
+
+          let offset = vlen * layer; // Bottom faces
+
+          for (let i = 0; i < flen; i++) {
+            const face = faces[i];
+            f3(face[2] + offset, face[1] + offset, face[0] + offset);
+          }
+
+          layer = steps + bevelSegments * 2;
+          offset = vlen * layer; // Top faces
+
+          for (let i = 0; i < flen; i++) {
+            const face = faces[i];
+            f3(face[0] + offset, face[1] + offset, face[2] + offset);
+          }
+        } else {
+          // Bottom faces
+          for (let i = 0; i < flen; i++) {
+            const face = faces[i];
+            f3(face[2], face[1], face[0]);
+          } // Top faces
+
+
+          for (let i = 0; i < flen; i++) {
+            const face = faces[i];
+            f3(face[0] + vlen * steps, face[1] + vlen * steps, face[2] + vlen * steps);
+          }
+        }
+
+        scope.addGroup(start, verticesArray.length / 3 - start, 0);
+      } // Create faces for the z-sides of the shape
+
+
+      function buildSideFaces() {
+        const start = verticesArray.length / 3;
+        let layeroffset = 0;
+        sidewalls(contour, layeroffset);
+        layeroffset += contour.length;
+
+        for (let h = 0, hl = holes.length; h < hl; h++) {
+          const ahole = holes[h];
+          sidewalls(ahole, layeroffset); //, true
+
+          layeroffset += ahole.length;
+        }
+
+        scope.addGroup(start, verticesArray.length / 3 - start, 1);
+      }
+
+      function sidewalls(contour, layeroffset) {
+        let i = contour.length;
+
+        while (--i >= 0) {
+          const j = i;
+          let k = i - 1;
+          if (k < 0) k = contour.length - 1; //console.log('b', i,j, i-1, k,vertices.length);
+
+          for (let s = 0, sl = steps + bevelSegments * 2; s < sl; s++) {
+            const slen1 = vlen * s;
+            const slen2 = vlen * (s + 1);
+            const a = layeroffset + j + slen1,
+                  b = layeroffset + k + slen1,
+                  c = layeroffset + k + slen2,
+                  d = layeroffset + j + slen2;
+            f4(a, b, c, d);
+          }
+        }
+      }
+
+      function v(x, y, z) {
+        placeholder.push(x);
+        placeholder.push(y);
+        placeholder.push(z);
+      }
+
+      function f3(a, b, c) {
+        addVertex(a);
+        addVertex(b);
+        addVertex(c);
+        const nextIndex = verticesArray.length / 3;
+        const uvs = uvgen.generateTopUV(scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1);
+        addUV(uvs[0]);
+        addUV(uvs[1]);
+        addUV(uvs[2]);
+      }
+
+      function f4(a, b, c, d) {
+        addVertex(a);
+        addVertex(b);
+        addVertex(d);
+        addVertex(b);
+        addVertex(c);
+        addVertex(d);
+        const nextIndex = verticesArray.length / 3;
+        const uvs = uvgen.generateSideWallUV(scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1);
+        addUV(uvs[0]);
+        addUV(uvs[1]);
+        addUV(uvs[3]);
+        addUV(uvs[1]);
+        addUV(uvs[2]);
+        addUV(uvs[3]);
+      }
+
+      function addVertex(index) {
+        verticesArray.push(placeholder[index * 3 + 0]);
+        verticesArray.push(placeholder[index * 3 + 1]);
+        verticesArray.push(placeholder[index * 3 + 2]);
+      }
+
+      function addUV(vector2) {
+        uvArray.push(vector2.x);
+        uvArray.push(vector2.y);
+      }
+    }
+  }
+
+  toJSON() {
+    const data = BufferGeometry.prototype.toJSON.call(this);
+    const shapes = this.parameters.shapes;
+    const options = this.parameters.options;
+    return toJSON(shapes, options, data);
+  }
+
+}
+
+exports.ExtrudeGeometry = exports.ExtrudeBufferGeometry = ExtrudeGeometry;
+const WorldUVGenerator = {
+  generateTopUV: function (geometry, vertices, indexA, indexB, indexC) {
+    const a_x = vertices[indexA * 3];
+    const a_y = vertices[indexA * 3 + 1];
+    const b_x = vertices[indexB * 3];
+    const b_y = vertices[indexB * 3 + 1];
+    const c_x = vertices[indexC * 3];
+    const c_y = vertices[indexC * 3 + 1];
+    return [new Vector2(a_x, a_y), new Vector2(b_x, b_y), new Vector2(c_x, c_y)];
+  },
+  generateSideWallUV: function (geometry, vertices, indexA, indexB, indexC, indexD) {
+    const a_x = vertices[indexA * 3];
+    const a_y = vertices[indexA * 3 + 1];
+    const a_z = vertices[indexA * 3 + 2];
+    const b_x = vertices[indexB * 3];
+    const b_y = vertices[indexB * 3 + 1];
+    const b_z = vertices[indexB * 3 + 2];
+    const c_x = vertices[indexC * 3];
+    const c_y = vertices[indexC * 3 + 1];
+    const c_z = vertices[indexC * 3 + 2];
+    const d_x = vertices[indexD * 3];
+    const d_y = vertices[indexD * 3 + 1];
+    const d_z = vertices[indexD * 3 + 2];
+
+    if (Math.abs(a_y - b_y) < 0.01) {
+      return [new Vector2(a_x, 1 - a_z), new Vector2(b_x, 1 - b_z), new Vector2(c_x, 1 - c_z), new Vector2(d_x, 1 - d_z)];
+    } else {
+      return [new Vector2(a_y, 1 - a_z), new Vector2(b_y, 1 - b_z), new Vector2(c_y, 1 - c_z), new Vector2(d_y, 1 - d_z)];
+    }
+  }
+};
+
+function toJSON(shapes, options, data) {
+  data.shapes = [];
+
+  if (Array.isArray(shapes)) {
+    for (let i = 0, l = shapes.length; i < l; i++) {
+      const shape = shapes[i];
+      data.shapes.push(shape.uuid);
+    }
+  } else {
+    data.shapes.push(shapes.uuid);
+  }
+
+  if (options.extrudePath !== undefined) data.options.extrudePath = options.extrudePath.toJSON();
+  return data;
+}
+
+class IcosahedronGeometry extends PolyhedronGeometry {
+  constructor(radius = 1, detail = 0) {
+    const t = (1 + Math.sqrt(5)) / 2;
+    const vertices = [-1, t, 0, 1, t, 0, -1, -t, 0, 1, -t, 0, 0, -1, t, 0, 1, t, 0, -1, -t, 0, 1, -t, t, 0, -1, t, 0, 1, -t, 0, -1, -t, 0, 1];
+    const indices = [0, 11, 5, 0, 5, 1, 0, 1, 7, 0, 7, 10, 0, 10, 11, 1, 5, 9, 5, 11, 4, 11, 10, 2, 10, 7, 6, 7, 1, 8, 3, 9, 4, 3, 4, 2, 3, 2, 6, 3, 6, 8, 3, 8, 9, 4, 9, 5, 2, 4, 11, 6, 2, 10, 8, 6, 7, 9, 8, 1];
+    super(vertices, indices, radius, detail);
+    this.type = 'IcosahedronGeometry';
+    this.parameters = {
+      radius: radius,
+      detail: detail
+    };
+  }
+
+}
+
+exports.IcosahedronGeometry = exports.IcosahedronBufferGeometry = IcosahedronGeometry;
+
+class LatheGeometry extends BufferGeometry {
+  constructor(points, segments = 12, phiStart = 0, phiLength = Math.PI * 2) {
+    super();
+    this.type = 'LatheGeometry';
+    this.parameters = {
+      points: points,
+      segments: segments,
+      phiStart: phiStart,
+      phiLength: phiLength
+    };
+    segments = Math.floor(segments); // clamp phiLength so it's in range of [ 0, 2PI ]
+
+    phiLength = MathUtils.clamp(phiLength, 0, Math.PI * 2); // buffers
+
+    const indices = [];
+    const vertices = [];
+    const uvs = []; // helper variables
+
+    const inverseSegments = 1.0 / segments;
+    const vertex = new Vector3();
+    const uv = new Vector2(); // generate vertices and uvs
+
+    for (let i = 0; i <= segments; i++) {
+      const phi = phiStart + i * inverseSegments * phiLength;
+      const sin = Math.sin(phi);
+      const cos = Math.cos(phi);
+
+      for (let j = 0; j <= points.length - 1; j++) {
+        // vertex
+        vertex.x = points[j].x * sin;
+        vertex.y = points[j].y;
+        vertex.z = points[j].x * cos;
+        vertices.push(vertex.x, vertex.y, vertex.z); // uv
+
+        uv.x = i / segments;
+        uv.y = j / (points.length - 1);
+        uvs.push(uv.x, uv.y);
+      }
+    } // indices
+
+
+    for (let i = 0; i < segments; i++) {
+      for (let j = 0; j < points.length - 1; j++) {
+        const base = j + i * points.length;
+        const a = base;
+        const b = base + points.length;
+        const c = base + points.length + 1;
+        const d = base + 1; // faces
+
+        indices.push(a, b, d);
+        indices.push(b, c, d);
+      }
+    } // build geometry
+
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // generate normals
+
+    this.computeVertexNormals(); // if the geometry is closed, we need to average the normals along the seam.
+    // because the corresponding vertices are identical (but still have different UVs).
+
+    if (phiLength === Math.PI * 2) {
+      const normals = this.attributes.normal.array;
+      const n1 = new Vector3();
+      const n2 = new Vector3();
+      const n = new Vector3(); // this is the buffer offset for the last line of vertices
+
+      const base = segments * points.length * 3;
+
+      for (let i = 0, j = 0; i < points.length; i++, j += 3) {
+        // select the normal of the vertex in the first line
+        n1.x = normals[j + 0];
+        n1.y = normals[j + 1];
+        n1.z = normals[j + 2]; // select the normal of the vertex in the last line
+
+        n2.x = normals[base + j + 0];
+        n2.y = normals[base + j + 1];
+        n2.z = normals[base + j + 2]; // average normals
+
+        n.addVectors(n1, n2).normalize(); // assign the new values to both normals
+
+        normals[j + 0] = normals[base + j + 0] = n.x;
+        normals[j + 1] = normals[base + j + 1] = n.y;
+        normals[j + 2] = normals[base + j + 2] = n.z;
+      }
+    }
+  }
+
+}
+
+exports.LatheGeometry = exports.LatheBufferGeometry = LatheGeometry;
+
+class OctahedronGeometry extends PolyhedronGeometry {
+  constructor(radius = 1, detail = 0) {
+    const vertices = [1, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1];
+    const indices = [0, 2, 4, 0, 4, 3, 0, 3, 5, 0, 5, 2, 1, 2, 5, 1, 5, 3, 1, 3, 4, 1, 4, 2];
+    super(vertices, indices, radius, detail);
+    this.type = 'OctahedronGeometry';
+    this.parameters = {
+      radius: radius,
+      detail: detail
+    };
+  }
+
+}
+/**
+ * Parametric Surfaces Geometry
+ * based on the brilliant article by @prideout https://prideout.net/blog/old/blog/index.html@p=44.html
+ */
+
+
+exports.OctahedronGeometry = exports.OctahedronBufferGeometry = OctahedronGeometry;
+
+function ParametricGeometry(func, slices, stacks) {
+  BufferGeometry.call(this);
+  this.type = 'ParametricGeometry';
+  this.parameters = {
+    func: func,
+    slices: slices,
+    stacks: stacks
+  }; // buffers
+
+  const indices = [];
+  const vertices = [];
+  const normals = [];
+  const uvs = [];
+  const EPS = 0.00001;
+  const normal = new Vector3();
+  const p0 = new Vector3(),
+        p1 = new Vector3();
+  const pu = new Vector3(),
+        pv = new Vector3();
+
+  if (func.length < 3) {
+    console.error('THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.');
+  } // generate vertices, normals and uvs
+
+
+  const sliceCount = slices + 1;
+
+  for (let i = 0; i <= stacks; i++) {
+    const v = i / stacks;
+
+    for (let j = 0; j <= slices; j++) {
+      const u = j / slices; // vertex
+
+      func(u, v, p0);
+      vertices.push(p0.x, p0.y, p0.z); // normal
+      // approximate tangent vectors via finite differences
+
+      if (u - EPS >= 0) {
+        func(u - EPS, v, p1);
+        pu.subVectors(p0, p1);
+      } else {
+        func(u + EPS, v, p1);
+        pu.subVectors(p1, p0);
+      }
+
+      if (v - EPS >= 0) {
+        func(u, v - EPS, p1);
+        pv.subVectors(p0, p1);
+      } else {
+        func(u, v + EPS, p1);
+        pv.subVectors(p1, p0);
+      } // cross product of tangent vectors returns surface normal
+
+
+      normal.crossVectors(pu, pv).normalize();
+      normals.push(normal.x, normal.y, normal.z); // uv
+
+      uvs.push(u, v);
+    }
+  } // generate indices
+
+
+  for (let i = 0; i < stacks; i++) {
+    for (let j = 0; j < slices; j++) {
+      const a = i * sliceCount + j;
+      const b = i * sliceCount + j + 1;
+      const c = (i + 1) * sliceCount + j + 1;
+      const d = (i + 1) * sliceCount + j; // faces one and two
+
+      indices.push(a, b, d);
+      indices.push(b, c, d);
+    }
+  } // build geometry
+
+
+  this.setIndex(indices);
+  this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+  this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+  this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
+}
+
+ParametricGeometry.prototype = Object.create(BufferGeometry.prototype);
+ParametricGeometry.prototype.constructor = ParametricGeometry;
+
+class RingGeometry extends BufferGeometry {
+  constructor(innerRadius = 0.5, outerRadius = 1, thetaSegments = 8, phiSegments = 1, thetaStart = 0, thetaLength = Math.PI * 2) {
+    super();
+    this.type = 'RingGeometry';
+    this.parameters = {
+      innerRadius: innerRadius,
+      outerRadius: outerRadius,
+      thetaSegments: thetaSegments,
+      phiSegments: phiSegments,
+      thetaStart: thetaStart,
+      thetaLength: thetaLength
+    };
+    thetaSegments = Math.max(3, thetaSegments);
+    phiSegments = Math.max(1, phiSegments); // buffers
+
+    const indices = [];
+    const vertices = [];
+    const normals = [];
+    const uvs = []; // some helper variables
+
+    let radius = innerRadius;
+    const radiusStep = (outerRadius - innerRadius) / phiSegments;
+    const vertex = new Vector3();
+    const uv = new Vector2(); // generate vertices, normals and uvs
+
+    for (let j = 0; j <= phiSegments; j++) {
+      for (let i = 0; i <= thetaSegments; i++) {
+        // values are generate from the inside of the ring to the outside
+        const segment = thetaStart + i / thetaSegments * thetaLength; // vertex
+
+        vertex.x = radius * Math.cos(segment);
+        vertex.y = radius * Math.sin(segment);
+        vertices.push(vertex.x, vertex.y, vertex.z); // normal
+
+        normals.push(0, 0, 1); // uv
+
+        uv.x = (vertex.x / outerRadius + 1) / 2;
+        uv.y = (vertex.y / outerRadius + 1) / 2;
+        uvs.push(uv.x, uv.y);
+      } // increase the radius for next row of vertices
+
+
+      radius += radiusStep;
+    } // indices
+
+
+    for (let j = 0; j < phiSegments; j++) {
+      const thetaSegmentLevel = j * (thetaSegments + 1);
+
+      for (let i = 0; i < thetaSegments; i++) {
+        const segment = i + thetaSegmentLevel;
+        const a = segment;
+        const b = segment + thetaSegments + 1;
+        const c = segment + thetaSegments + 2;
+        const d = segment + 1; // faces
+
+        indices.push(a, b, d);
+        indices.push(b, c, d);
+      }
+    } // build geometry
+
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
+  }
+
+}
+
+exports.RingGeometry = exports.RingBufferGeometry = RingGeometry;
+
+class ShapeGeometry extends BufferGeometry {
+  constructor(shapes, curveSegments = 12) {
+    super();
+    this.type = 'ShapeGeometry';
+    this.parameters = {
+      shapes: shapes,
+      curveSegments: curveSegments
+    }; // buffers
+
+    const indices = [];
+    const vertices = [];
+    const normals = [];
+    const uvs = []; // helper variables
+
+    let groupStart = 0;
+    let groupCount = 0; // allow single and array values for "shapes" parameter
+
+    if (Array.isArray(shapes) === false) {
+      addShape(shapes);
+    } else {
+      for (let i = 0; i < shapes.length; i++) {
+        addShape(shapes[i]);
+        this.addGroup(groupStart, groupCount, i); // enables MultiMaterial support
+
+        groupStart += groupCount;
+        groupCount = 0;
+      }
+    } // build geometry
+
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // helper functions
+
+    function addShape(shape) {
+      const indexOffset = vertices.length / 3;
+      const points = shape.extractPoints(curveSegments);
+      let shapeVertices = points.shape;
+      const shapeHoles = points.holes; // check direction of vertices
+
+      if (ShapeUtils.isClockWise(shapeVertices) === false) {
+        shapeVertices = shapeVertices.reverse();
+      }
+
+      for (let i = 0, l = shapeHoles.length; i < l; i++) {
+        const shapeHole = shapeHoles[i];
+
+        if (ShapeUtils.isClockWise(shapeHole) === true) {
+          shapeHoles[i] = shapeHole.reverse();
+        }
+      }
+
+      const faces = ShapeUtils.triangulateShape(shapeVertices, shapeHoles); // join vertices of inner and outer paths to a single array
+
+      for (let i = 0, l = shapeHoles.length; i < l; i++) {
+        const shapeHole = shapeHoles[i];
+        shapeVertices = shapeVertices.concat(shapeHole);
+      } // vertices, normals, uvs
+
+
+      for (let i = 0, l = shapeVertices.length; i < l; i++) {
+        const vertex = shapeVertices[i];
+        vertices.push(vertex.x, vertex.y, 0);
+        normals.push(0, 0, 1);
+        uvs.push(vertex.x, vertex.y); // world uvs
+      } // incides
+
+
+      for (let i = 0, l = faces.length; i < l; i++) {
+        const face = faces[i];
+        const a = face[0] + indexOffset;
+        const b = face[1] + indexOffset;
+        const c = face[2] + indexOffset;
+        indices.push(a, b, c);
+        groupCount += 3;
+      }
+    }
+  }
+
+  toJSON() {
+    const data = BufferGeometry.prototype.toJSON.call(this);
+    const shapes = this.parameters.shapes;
+    return toJSON$1(shapes, data);
+  }
+
+}
+
+exports.ShapeGeometry = exports.ShapeBufferGeometry = ShapeGeometry;
+
+function toJSON$1(shapes, data) {
+  data.shapes = [];
+
+  if (Array.isArray(shapes)) {
+    for (let i = 0, l = shapes.length; i < l; i++) {
+      const shape = shapes[i];
+      data.shapes.push(shape.uuid);
+    }
+  } else {
+    data.shapes.push(shapes.uuid);
+  }
+
+  return data;
+}
+
+class SphereGeometry extends BufferGeometry {
+  constructor(radius = 1, widthSegments = 8, heightSegments = 6, phiStart = 0, phiLength = Math.PI * 2, thetaStart = 0, thetaLength = Math.PI) {
+    super();
+    this.type = 'SphereGeometry';
+    this.parameters = {
+      radius: radius,
+      widthSegments: widthSegments,
+      heightSegments: heightSegments,
+      phiStart: phiStart,
+      phiLength: phiLength,
+      thetaStart: thetaStart,
+      thetaLength: thetaLength
+    };
+    widthSegments = Math.max(3, Math.floor(widthSegments));
+    heightSegments = Math.max(2, Math.floor(heightSegments));
+    const thetaEnd = Math.min(thetaStart + thetaLength, Math.PI);
+    let index = 0;
+    const grid = [];
+    const vertex = new Vector3();
+    const normal = new Vector3(); // buffers
+
+    const indices = [];
+    const vertices = [];
+    const normals = [];
+    const uvs = []; // generate vertices, normals and uvs
+
+    for (let iy = 0; iy <= heightSegments; iy++) {
+      const verticesRow = [];
+      const v = iy / heightSegments; // special case for the poles
+
+      let uOffset = 0;
+
+      if (iy == 0 && thetaStart == 0) {
+        uOffset = 0.5 / widthSegments;
+      } else if (iy == heightSegments && thetaEnd == Math.PI) {
+        uOffset = -0.5 / widthSegments;
+      }
+
+      for (let ix = 0; ix <= widthSegments; ix++) {
+        const u = ix / widthSegments; // vertex
+
+        vertex.x = -radius * Math.cos(phiStart + u * phiLength) * Math.sin(thetaStart + v * thetaLength);
+        vertex.y = radius * Math.cos(thetaStart + v * thetaLength);
+        vertex.z = radius * Math.sin(phiStart + u * phiLength) * Math.sin(thetaStart + v * thetaLength);
+        vertices.push(vertex.x, vertex.y, vertex.z); // normal
+
+        normal.copy(vertex).normalize();
+        normals.push(normal.x, normal.y, normal.z); // uv
+
+        uvs.push(u + uOffset, 1 - v);
+        verticesRow.push(index++);
+      }
+
+      grid.push(verticesRow);
+    } // indices
+
+
+    for (let iy = 0; iy < heightSegments; iy++) {
+      for (let ix = 0; ix < widthSegments; ix++) {
+        const a = grid[iy][ix + 1];
+        const b = grid[iy][ix];
+        const c = grid[iy + 1][ix];
+        const d = grid[iy + 1][ix + 1];
+        if (iy !== 0 || thetaStart > 0) indices.push(a, b, d);
+        if (iy !== heightSegments - 1 || thetaEnd < Math.PI) indices.push(b, c, d);
+      }
+    } // build geometry
+
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
+  }
+
+}
+
+exports.SphereGeometry = exports.SphereBufferGeometry = SphereGeometry;
+
+class TetrahedronGeometry extends PolyhedronGeometry {
+  constructor(radius = 1, detail = 0) {
+    const vertices = [1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1];
+    const indices = [2, 1, 0, 0, 3, 2, 1, 3, 0, 2, 3, 1];
+    super(vertices, indices, radius, detail);
+    this.type = 'TetrahedronGeometry';
+    this.parameters = {
+      radius: radius,
+      detail: detail
+    };
+  }
+
+}
+/**
+ * Text = 3D Text
+ *
+ * parameters = {
+ *  font: <THREE.Font>, // font
+ *
+ *  size: <float>, // size of the text
+ *  height: <float>, // thickness to extrude text
+ *  curveSegments: <int>, // number of points on the curves
+ *
+ *  bevelEnabled: <bool>, // turn on bevel
+ *  bevelThickness: <float>, // how deep into text bevel goes
+ *  bevelSize: <float>, // how far from text outline (including bevelOffset) is bevel
+ *  bevelOffset: <float> // how far from text outline does bevel start
+ * }
+ */
+
+
+exports.TetrahedronGeometry = exports.TetrahedronBufferGeometry = TetrahedronGeometry;
+
+class TextGeometry extends ExtrudeGeometry {
+  constructor(text, parameters = {}) {
+    const font = parameters.font;
+
+    if (!(font && font.isFont)) {
+      console.error('THREE.TextGeometry: font parameter is not an instance of THREE.Font.');
+      return new BufferGeometry();
+    }
+
+    const shapes = font.generateShapes(text, parameters.size); // translate parameters to ExtrudeGeometry API
+
+    parameters.depth = parameters.height !== undefined ? parameters.height : 50; // defaults
+
+    if (parameters.bevelThickness === undefined) parameters.bevelThickness = 10;
+    if (parameters.bevelSize === undefined) parameters.bevelSize = 8;
+    if (parameters.bevelEnabled === undefined) parameters.bevelEnabled = false;
+    super(shapes, parameters);
+    this.type = 'TextGeometry';
+  }
+
+}
+
+exports.TextGeometry = exports.TextBufferGeometry = TextGeometry;
+
+class TorusGeometry extends BufferGeometry {
+  constructor(radius = 1, tube = 0.4, radialSegments = 8, tubularSegments = 6, arc = Math.PI * 2) {
+    super();
+    this.type = 'TorusGeometry';
+    this.parameters = {
+      radius: radius,
+      tube: tube,
+      radialSegments: radialSegments,
+      tubularSegments: tubularSegments,
+      arc: arc
+    };
+    radialSegments = Math.floor(radialSegments);
+    tubularSegments = Math.floor(tubularSegments); // buffers
+
+    const indices = [];
+    const vertices = [];
+    const normals = [];
+    const uvs = []; // helper variables
+
+    const center = new Vector3();
+    const vertex = new Vector3();
+    const normal = new Vector3(); // generate vertices, normals and uvs
+
+    for (let j = 0; j <= radialSegments; j++) {
+      for (let i = 0; i <= tubularSegments; i++) {
+        const u = i / tubularSegments * arc;
+        const v = j / radialSegments * Math.PI * 2; // vertex
+
+        vertex.x = (radius + tube * Math.cos(v)) * Math.cos(u);
+        vertex.y = (radius + tube * Math.cos(v)) * Math.sin(u);
+        vertex.z = tube * Math.sin(v);
+        vertices.push(vertex.x, vertex.y, vertex.z); // normal
+
+        center.x = radius * Math.cos(u);
+        center.y = radius * Math.sin(u);
+        normal.subVectors(vertex, center).normalize();
+        normals.push(normal.x, normal.y, normal.z); // uv
+
+        uvs.push(i / tubularSegments);
+        uvs.push(j / radialSegments);
+      }
+    } // generate indices
+
+
+    for (let j = 1; j <= radialSegments; j++) {
+      for (let i = 1; i <= tubularSegments; i++) {
+        // indices
+        const a = (tubularSegments + 1) * j + i - 1;
+        const b = (tubularSegments + 1) * (j - 1) + i - 1;
+        const c = (tubularSegments + 1) * (j - 1) + i;
+        const d = (tubularSegments + 1) * j + i; // faces
+
+        indices.push(a, b, d);
+        indices.push(b, c, d);
+      }
+    } // build geometry
+
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
+  }
+
+}
+
+exports.TorusGeometry = exports.TorusBufferGeometry = TorusGeometry;
+
+class TorusKnotGeometry extends BufferGeometry {
+  constructor(radius = 1, tube = 0.4, tubularSegments = 64, radialSegments = 8, p = 2, q = 3) {
+    super();
+    this.type = 'TorusKnotGeometry';
+    this.parameters = {
+      radius: radius,
+      tube: tube,
+      tubularSegments: tubularSegments,
+      radialSegments: radialSegments,
+      p: p,
+      q: q
+    };
+    tubularSegments = Math.floor(tubularSegments);
+    radialSegments = Math.floor(radialSegments); // buffers
+
+    const indices = [];
+    const vertices = [];
+    const normals = [];
+    const uvs = []; // helper variables
+
+    const vertex = new Vector3();
+    const normal = new Vector3();
+    const P1 = new Vector3();
+    const P2 = new Vector3();
+    const B = new Vector3();
+    const T = new Vector3();
+    const N = new Vector3(); // generate vertices, normals and uvs
+
+    for (let i = 0; i <= tubularSegments; ++i) {
+      // the radian "u" is used to calculate the position on the torus curve of the current tubular segement
+      const u = i / tubularSegments * p * Math.PI * 2; // now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
+      // these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions
+
+      calculatePositionOnCurve(u, p, q, radius, P1);
+      calculatePositionOnCurve(u + 0.01, p, q, radius, P2); // calculate orthonormal basis
+
+      T.subVectors(P2, P1);
+      N.addVectors(P2, P1);
+      B.crossVectors(T, N);
+      N.crossVectors(B, T); // normalize B, N. T can be ignored, we don't use it
+
+      B.normalize();
+      N.normalize();
+
+      for (let j = 0; j <= radialSegments; ++j) {
+        // now calculate the vertices. they are nothing more than an extrusion of the torus curve.
+        // because we extrude a shape in the xy-plane, there is no need to calculate a z-value.
+        const v = j / radialSegments * Math.PI * 2;
+        const cx = -tube * Math.cos(v);
+        const cy = tube * Math.sin(v); // now calculate the final vertex position.
+        // first we orient the extrusion with our basis vectos, then we add it to the current position on the curve
+
+        vertex.x = P1.x + (cx * N.x + cy * B.x);
+        vertex.y = P1.y + (cx * N.y + cy * B.y);
+        vertex.z = P1.z + (cx * N.z + cy * B.z);
+        vertices.push(vertex.x, vertex.y, vertex.z); // normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)
+
+        normal.subVectors(vertex, P1).normalize();
+        normals.push(normal.x, normal.y, normal.z); // uv
+
+        uvs.push(i / tubularSegments);
+        uvs.push(j / radialSegments);
+      }
+    } // generate indices
+
+
+    for (let j = 1; j <= tubularSegments; j++) {
+      for (let i = 1; i <= radialSegments; i++) {
+        // indices
+        const a = (radialSegments + 1) * (j - 1) + (i - 1);
+        const b = (radialSegments + 1) * j + (i - 1);
+        const c = (radialSegments + 1) * j + i;
+        const d = (radialSegments + 1) * (j - 1) + i; // faces
+
+        indices.push(a, b, d);
+        indices.push(b, c, d);
+      }
+    } // build geometry
+
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // this function calculates the current position on the torus curve
+
+    function calculatePositionOnCurve(u, p, q, radius, position) {
+      const cu = Math.cos(u);
+      const su = Math.sin(u);
+      const quOverP = q / p * u;
+      const cs = Math.cos(quOverP);
+      position.x = radius * (2 + cs) * 0.5 * cu;
+      position.y = radius * (2 + cs) * su * 0.5;
+      position.z = radius * Math.sin(quOverP) * 0.5;
+    }
+  }
+
+}
+
+exports.TorusKnotGeometry = exports.TorusKnotBufferGeometry = TorusKnotGeometry;
+
+class TubeGeometry extends BufferGeometry {
+  constructor(path, tubularSegments = 64, radius = 1, radialSegments = 8, closed = false) {
+    super();
+    this.type = 'TubeGeometry';
+    this.parameters = {
+      path: path,
+      tubularSegments: tubularSegments,
+      radius: radius,
+      radialSegments: radialSegments,
+      closed: closed
+    };
+    const frames = path.computeFrenetFrames(tubularSegments, closed); // expose internals
+
+    this.tangents = frames.tangents;
+    this.normals = frames.normals;
+    this.binormals = frames.binormals; // helper variables
+
+    const vertex = new Vector3();
+    const normal = new Vector3();
+    const uv = new Vector2();
+    let P = new Vector3(); // buffer
+
+    const vertices = [];
+    const normals = [];
+    const uvs = [];
+    const indices = []; // create buffer data
+
+    generateBufferData(); // build geometry
+
+    this.setIndex(indices);
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
+    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // functions
+
+    function generateBufferData() {
+      for (let i = 0; i < tubularSegments; i++) {
+        generateSegment(i);
+      } // if the geometry is not closed, generate the last row of vertices and normals
+      // at the regular position on the given path
+      //
+      // if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)
+
+
+      generateSegment(closed === false ? tubularSegments : 0); // uvs are generated in a separate function.
+      // this makes it easy compute correct values for closed geometries
+
+      generateUVs(); // finally create faces
+
+      generateIndices();
+    }
+
+    function generateSegment(i) {
+      // we use getPointAt to sample evenly distributed points from the given path
+      P = path.getPointAt(i / tubularSegments, P); // retrieve corresponding normal and binormal
+
+      const N = frames.normals[i];
+      const B = frames.binormals[i]; // generate normals and vertices for the current segment
+
+      for (let j = 0; j <= radialSegments; j++) {
+        const v = j / radialSegments * Math.PI * 2;
+        const sin = Math.sin(v);
+        const cos = -Math.cos(v); // normal
+
+        normal.x = cos * N.x + sin * B.x;
+        normal.y = cos * N.y + sin * B.y;
+        normal.z = cos * N.z + sin * B.z;
+        normal.normalize();
+        normals.push(normal.x, normal.y, normal.z); // vertex
+
+        vertex.x = P.x + radius * normal.x;
+        vertex.y = P.y + radius * normal.y;
+        vertex.z = P.z + radius * normal.z;
+        vertices.push(vertex.x, vertex.y, vertex.z);
+      }
+    }
+
+    function generateIndices() {
+      for (let j = 1; j <= tubularSegments; j++) {
+        for (let i = 1; i <= radialSegments; i++) {
+          const a = (radialSegments + 1) * (j - 1) + (i - 1);
+          const b = (radialSegments + 1) * j + (i - 1);
+          const c = (radialSegments + 1) * j + i;
+          const d = (radialSegments + 1) * (j - 1) + i; // faces
+
+          indices.push(a, b, d);
+          indices.push(b, c, d);
+        }
+      }
+    }
+
+    function generateUVs() {
+      for (let i = 0; i <= tubularSegments; i++) {
+        for (let j = 0; j <= radialSegments; j++) {
+          uv.x = i / tubularSegments;
+          uv.y = j / radialSegments;
+          uvs.push(uv.x, uv.y);
+        }
+      }
+    }
+  }
+
+  toJSON() {
+    const data = BufferGeometry.prototype.toJSON.call(this);
+    data.path = this.parameters.path.toJSON();
+    return data;
+  }
+
+}
+
+exports.TubeGeometry = exports.TubeBufferGeometry = TubeGeometry;
+
+class WireframeGeometry extends BufferGeometry {
+  constructor(geometry) {
+    super();
+    this.type = 'WireframeGeometry';
+
+    if (geometry.isGeometry === true) {
+      console.error('THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
+      return;
+    } // buffer
+
+
+    const vertices = []; // helper variables
+
+    const edge = [0, 0],
+          edges = {};
+    const vertex = new Vector3();
+
+    if (geometry.index !== null) {
+      // indexed BufferGeometry
+      const position = geometry.attributes.position;
+      const indices = geometry.index;
+      let groups = geometry.groups;
+
+      if (groups.length === 0) {
+        groups = [{
+          start: 0,
+          count: indices.count,
+          materialIndex: 0
+        }];
+      } // create a data structure that contains all eges without duplicates
+
+
+      for (let o = 0, ol = groups.length; o < ol; ++o) {
+        const group = groups[o];
+        const start = group.start;
+        const count = group.count;
+
+        for (let i = start, l = start + count; i < l; i += 3) {
+          for (let j = 0; j < 3; j++) {
+            const edge1 = indices.getX(i + j);
+            const edge2 = indices.getX(i + (j + 1) % 3);
+            edge[0] = Math.min(edge1, edge2); // sorting prevents duplicates
+
+            edge[1] = Math.max(edge1, edge2);
+            const key = edge[0] + ',' + edge[1];
+
+            if (edges[key] === undefined) {
+              edges[key] = {
+                index1: edge[0],
+                index2: edge[1]
+              };
+            }
+          }
+        }
+      } // generate vertices
+
+
+      for (const key in edges) {
+        const e = edges[key];
+        vertex.fromBufferAttribute(position, e.index1);
+        vertices.push(vertex.x, vertex.y, vertex.z);
+        vertex.fromBufferAttribute(position, e.index2);
+        vertices.push(vertex.x, vertex.y, vertex.z);
+      }
+    } else {
+      // non-indexed BufferGeometry
+      const position = geometry.attributes.position;
+
+      for (let i = 0, l = position.count / 3; i < l; i++) {
+        for (let j = 0; j < 3; j++) {
+          // three edges per triangle, an edge is represented as (index1, index2)
+          // e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)
+          const index1 = 3 * i + j;
+          vertex.fromBufferAttribute(position, index1);
+          vertices.push(vertex.x, vertex.y, vertex.z);
+          const index2 = 3 * i + (j + 1) % 3;
+          vertex.fromBufferAttribute(position, index2);
+          vertices.push(vertex.x, vertex.y, vertex.z);
+        }
+      }
+    } // build geometry
+
+
+    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+  }
+
+}
+
+exports.WireframeGeometry = WireframeGeometry;
+var Geometries =
+/*#__PURE__*/
+Object.freeze({
+  __proto__: null,
+  BoxGeometry: BoxGeometry,
+  BoxBufferGeometry: BoxGeometry,
+  CircleGeometry: CircleGeometry,
+  CircleBufferGeometry: CircleGeometry,
+  ConeGeometry: ConeGeometry,
+  ConeBufferGeometry: ConeGeometry,
+  CylinderGeometry: CylinderGeometry,
+  CylinderBufferGeometry: CylinderGeometry,
+  DodecahedronGeometry: DodecahedronGeometry,
+  DodecahedronBufferGeometry: DodecahedronGeometry,
+  EdgesGeometry: EdgesGeometry,
+  ExtrudeGeometry: ExtrudeGeometry,
+  ExtrudeBufferGeometry: ExtrudeGeometry,
+  IcosahedronGeometry: IcosahedronGeometry,
+  IcosahedronBufferGeometry: IcosahedronGeometry,
+  LatheGeometry: LatheGeometry,
+  LatheBufferGeometry: LatheGeometry,
+  OctahedronGeometry: OctahedronGeometry,
+  OctahedronBufferGeometry: OctahedronGeometry,
+  ParametricGeometry: ParametricGeometry,
+  ParametricBufferGeometry: ParametricGeometry,
+  PlaneGeometry: PlaneGeometry,
+  PlaneBufferGeometry: PlaneGeometry,
+  PolyhedronGeometry: PolyhedronGeometry,
+  PolyhedronBufferGeometry: PolyhedronGeometry,
+  RingGeometry: RingGeometry,
+  RingBufferGeometry: RingGeometry,
+  ShapeGeometry: ShapeGeometry,
+  ShapeBufferGeometry: ShapeGeometry,
+  SphereGeometry: SphereGeometry,
+  SphereBufferGeometry: SphereGeometry,
+  TetrahedronGeometry: TetrahedronGeometry,
+  TetrahedronBufferGeometry: TetrahedronGeometry,
+  TextGeometry: TextGeometry,
+  TextBufferGeometry: TextGeometry,
+  TorusGeometry: TorusGeometry,
+  TorusBufferGeometry: TorusGeometry,
+  TorusKnotGeometry: TorusKnotGeometry,
+  TorusKnotBufferGeometry: TorusKnotGeometry,
+  TubeGeometry: TubeGeometry,
+  TubeBufferGeometry: TubeGeometry,
+  WireframeGeometry: WireframeGeometry
+});
+/**
+ * parameters = {
+ *  color: <THREE.Color>
+ * }
+ */
+
+class ShadowMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'ShadowMaterial';
+    this.color = new Color(0x000000);
+    this.transparent = true;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.color.copy(source.color);
+    return this;
+  }
+
+}
+
+exports.ShadowMaterial = ShadowMaterial;
+ShadowMaterial.prototype.isShadowMaterial = true;
+
+class RawShaderMaterial extends ShaderMaterial {
+  constructor(parameters) {
+    super(parameters);
+    this.type = 'RawShaderMaterial';
+  }
+
+}
+
+exports.RawShaderMaterial = RawShaderMaterial;
+RawShaderMaterial.prototype.isRawShaderMaterial = true;
+/**
+ * parameters = {
+ *  color: <hex>,
+ *  roughness: <float>,
+ *  metalness: <float>,
+ *  opacity: <float>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  lightMap: new THREE.Texture( <Image> ),
+ *  lightMapIntensity: <float>
+ *
+ *  aoMap: new THREE.Texture( <Image> ),
+ *  aoMapIntensity: <float>
+ *
+ *  emissive: <hex>,
+ *  emissiveIntensity: <float>
+ *  emissiveMap: new THREE.Texture( <Image> ),
+ *
+ *  bumpMap: new THREE.Texture( <Image> ),
+ *  bumpScale: <float>,
+ *
+ *  normalMap: new THREE.Texture( <Image> ),
+ *  normalMapType: THREE.TangentSpaceNormalMap,
+ *  normalScale: <Vector2>,
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  roughnessMap: new THREE.Texture( <Image> ),
+ *
+ *  metalnessMap: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
+ *  envMapIntensity: <float>
+ *
+ *  refractionRatio: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>,
+ *
+ *  flatShading: <bool>
+ * }
+ */
+
+function MeshStandardMaterial(parameters) {
+  Material.call(this);
+  this.defines = {
+    'STANDARD': ''
+  };
+  this.type = 'MeshStandardMaterial';
+  this.color = new Color(0xffffff); // diffuse
+
+  this.roughness = 1.0;
+  this.metalness = 0.0;
+  this.map = null;
+  this.lightMap = null;
+  this.lightMapIntensity = 1.0;
+  this.aoMap = null;
+  this.aoMapIntensity = 1.0;
+  this.emissive = new Color(0x000000);
+  this.emissiveIntensity = 1.0;
+  this.emissiveMap = null;
+  this.bumpMap = null;
+  this.bumpScale = 1;
+  this.normalMap = null;
+  this.normalMapType = TangentSpaceNormalMap;
+  this.normalScale = new Vector2(1, 1);
+  this.displacementMap = null;
+  this.displacementScale = 1;
+  this.displacementBias = 0;
+  this.roughnessMap = null;
+  this.metalnessMap = null;
+  this.alphaMap = null;
+  this.envMap = null;
+  this.envMapIntensity = 1.0;
+  this.refractionRatio = 0.98;
+  this.wireframe = false;
+  this.wireframeLinewidth = 1;
+  this.wireframeLinecap = 'round';
+  this.wireframeLinejoin = 'round';
+  this.skinning = false;
+  this.morphTargets = false;
+  this.morphNormals = false;
+  this.flatShading = false;
+  this.vertexTangents = false;
+  this.setValues(parameters);
+}
+
+MeshStandardMaterial.prototype = Object.create(Material.prototype);
+MeshStandardMaterial.prototype.constructor = MeshStandardMaterial;
+MeshStandardMaterial.prototype.isMeshStandardMaterial = true;
+
+MeshStandardMaterial.prototype.copy = function (source) {
+  Material.prototype.copy.call(this, source);
+  this.defines = {
+    'STANDARD': ''
+  };
+  this.color.copy(source.color);
+  this.roughness = source.roughness;
+  this.metalness = source.metalness;
+  this.map = source.map;
+  this.lightMap = source.lightMap;
+  this.lightMapIntensity = source.lightMapIntensity;
+  this.aoMap = source.aoMap;
+  this.aoMapIntensity = source.aoMapIntensity;
+  this.emissive.copy(source.emissive);
+  this.emissiveMap = source.emissiveMap;
+  this.emissiveIntensity = source.emissiveIntensity;
+  this.bumpMap = source.bumpMap;
+  this.bumpScale = source.bumpScale;
+  this.normalMap = source.normalMap;
+  this.normalMapType = source.normalMapType;
+  this.normalScale.copy(source.normalScale);
+  this.displacementMap = source.displacementMap;
+  this.displacementScale = source.displacementScale;
+  this.displacementBias = source.displacementBias;
+  this.roughnessMap = source.roughnessMap;
+  this.metalnessMap = source.metalnessMap;
+  this.alphaMap = source.alphaMap;
+  this.envMap = source.envMap;
+  this.envMapIntensity = source.envMapIntensity;
+  this.refractionRatio = source.refractionRatio;
+  this.wireframe = source.wireframe;
+  this.wireframeLinewidth = source.wireframeLinewidth;
+  this.wireframeLinecap = source.wireframeLinecap;
+  this.wireframeLinejoin = source.wireframeLinejoin;
+  this.skinning = source.skinning;
+  this.morphTargets = source.morphTargets;
+  this.morphNormals = source.morphNormals;
+  this.flatShading = source.flatShading;
+  this.vertexTangents = source.vertexTangents;
+  return this;
+};
+/**
+ * parameters = {
+ *  clearcoat: <float>,
+ *  clearcoatMap: new THREE.Texture( <Image> ),
+ *  clearcoatRoughness: <float>,
+ *  clearcoatRoughnessMap: new THREE.Texture( <Image> ),
+ *  clearcoatNormalScale: <Vector2>,
+ *  clearcoatNormalMap: new THREE.Texture( <Image> ),
+ *
+ *  reflectivity: <float>,
+ *  ior: <float>,
+ *
+ *  sheen: <Color>,
+ *
+ *  transmission: <float>,
+ *  transmissionMap: new THREE.Texture( <Image> )
+ * }
+ */
+
+
+function MeshPhysicalMaterial(parameters) {
+  MeshStandardMaterial.call(this);
+  this.defines = {
+    'STANDARD': '',
+    'PHYSICAL': ''
+  };
+  this.type = 'MeshPhysicalMaterial';
+  this.clearcoat = 0.0;
+  this.clearcoatMap = null;
+  this.clearcoatRoughness = 0.0;
+  this.clearcoatRoughnessMap = null;
+  this.clearcoatNormalScale = new Vector2(1, 1);
+  this.clearcoatNormalMap = null;
+  this.reflectivity = 0.5; // maps to F0 = 0.04
+
+  Object.defineProperty(this, 'ior', {
+    get: function () {
+      return (1 + 0.4 * this.reflectivity) / (1 - 0.4 * this.reflectivity);
+    },
+    set: function (ior) {
+      this.reflectivity = MathUtils.clamp(2.5 * (ior - 1) / (ior + 1), 0, 1);
+    }
+  });
+  this.sheen = null; // null will disable sheen bsdf
+
+  this.transmission = 0.0;
+  this.transmissionMap = null;
+  this.setValues(parameters);
+}
+
+MeshPhysicalMaterial.prototype = Object.create(MeshStandardMaterial.prototype);
+MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;
+MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;
+
+MeshPhysicalMaterial.prototype.copy = function (source) {
+  MeshStandardMaterial.prototype.copy.call(this, source);
+  this.defines = {
+    'STANDARD': '',
+    'PHYSICAL': ''
+  };
+  this.clearcoat = source.clearcoat;
+  this.clearcoatMap = source.clearcoatMap;
+  this.clearcoatRoughness = source.clearcoatRoughness;
+  this.clearcoatRoughnessMap = source.clearcoatRoughnessMap;
+  this.clearcoatNormalMap = source.clearcoatNormalMap;
+  this.clearcoatNormalScale.copy(source.clearcoatNormalScale);
+  this.reflectivity = source.reflectivity;
+
+  if (source.sheen) {
+    this.sheen = (this.sheen || new Color()).copy(source.sheen);
+  } else {
+    this.sheen = null;
+  }
+
+  this.transmission = source.transmission;
+  this.transmissionMap = source.transmissionMap;
+  return this;
+};
+/**
+ * parameters = {
+ *  color: <hex>,
+ *  specular: <hex>,
+ *  shininess: <float>,
+ *  opacity: <float>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  lightMap: new THREE.Texture( <Image> ),
+ *  lightMapIntensity: <float>
+ *
+ *  aoMap: new THREE.Texture( <Image> ),
+ *  aoMapIntensity: <float>
+ *
+ *  emissive: <hex>,
+ *  emissiveIntensity: <float>
+ *  emissiveMap: new THREE.Texture( <Image> ),
+ *
+ *  bumpMap: new THREE.Texture( <Image> ),
+ *  bumpScale: <float>,
+ *
+ *  normalMap: new THREE.Texture( <Image> ),
+ *  normalMapType: THREE.TangentSpaceNormalMap,
+ *  normalScale: <Vector2>,
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  specularMap: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
+ *  combine: THREE.MultiplyOperation,
+ *  reflectivity: <float>,
+ *  refractionRatio: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>,
+ *
+ *  flatShading: <bool>
+ * }
+ */
+
+
+class MeshPhongMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'MeshPhongMaterial';
+    this.color = new Color(0xffffff); // diffuse
+
+    this.specular = new Color(0x111111);
+    this.shininess = 30;
+    this.map = null;
+    this.lightMap = null;
+    this.lightMapIntensity = 1.0;
+    this.aoMap = null;
+    this.aoMapIntensity = 1.0;
+    this.emissive = new Color(0x000000);
+    this.emissiveIntensity = 1.0;
+    this.emissiveMap = null;
+    this.bumpMap = null;
+    this.bumpScale = 1;
+    this.normalMap = null;
+    this.normalMapType = TangentSpaceNormalMap;
+    this.normalScale = new Vector2(1, 1);
+    this.displacementMap = null;
+    this.displacementScale = 1;
+    this.displacementBias = 0;
+    this.specularMap = null;
+    this.alphaMap = null;
+    this.envMap = null;
+    this.combine = MultiplyOperation;
+    this.reflectivity = 1;
+    this.refractionRatio = 0.98;
+    this.wireframe = false;
+    this.wireframeLinewidth = 1;
+    this.wireframeLinecap = 'round';
+    this.wireframeLinejoin = 'round';
+    this.skinning = false;
+    this.morphTargets = false;
+    this.morphNormals = false;
+    this.flatShading = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.color.copy(source.color);
+    this.specular.copy(source.specular);
+    this.shininess = source.shininess;
+    this.map = source.map;
+    this.lightMap = source.lightMap;
+    this.lightMapIntensity = source.lightMapIntensity;
+    this.aoMap = source.aoMap;
+    this.aoMapIntensity = source.aoMapIntensity;
+    this.emissive.copy(source.emissive);
+    this.emissiveMap = source.emissiveMap;
+    this.emissiveIntensity = source.emissiveIntensity;
+    this.bumpMap = source.bumpMap;
+    this.bumpScale = source.bumpScale;
+    this.normalMap = source.normalMap;
+    this.normalMapType = source.normalMapType;
+    this.normalScale.copy(source.normalScale);
+    this.displacementMap = source.displacementMap;
+    this.displacementScale = source.displacementScale;
+    this.displacementBias = source.displacementBias;
+    this.specularMap = source.specularMap;
+    this.alphaMap = source.alphaMap;
+    this.envMap = source.envMap;
+    this.combine = source.combine;
+    this.reflectivity = source.reflectivity;
+    this.refractionRatio = source.refractionRatio;
+    this.wireframe = source.wireframe;
+    this.wireframeLinewidth = source.wireframeLinewidth;
+    this.wireframeLinecap = source.wireframeLinecap;
+    this.wireframeLinejoin = source.wireframeLinejoin;
+    this.skinning = source.skinning;
+    this.morphTargets = source.morphTargets;
+    this.morphNormals = source.morphNormals;
+    this.flatShading = source.flatShading;
+    return this;
+  }
+
+}
+
+exports.MeshPhongMaterial = MeshPhongMaterial;
+MeshPhongMaterial.prototype.isMeshPhongMaterial = true;
+/**
+ * parameters = {
+ *  color: <hex>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *  gradientMap: new THREE.Texture( <Image> ),
+ *
+ *  lightMap: new THREE.Texture( <Image> ),
+ *  lightMapIntensity: <float>
+ *
+ *  aoMap: new THREE.Texture( <Image> ),
+ *  aoMapIntensity: <float>
+ *
+ *  emissive: <hex>,
+ *  emissiveIntensity: <float>
+ *  emissiveMap: new THREE.Texture( <Image> ),
+ *
+ *  bumpMap: new THREE.Texture( <Image> ),
+ *  bumpScale: <float>,
+ *
+ *  normalMap: new THREE.Texture( <Image> ),
+ *  normalMapType: THREE.TangentSpaceNormalMap,
+ *  normalScale: <Vector2>,
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>
+ * }
+ */
+
+class MeshToonMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.defines = {
+      'TOON': ''
+    };
+    this.type = 'MeshToonMaterial';
+    this.color = new Color(0xffffff);
+    this.map = null;
+    this.gradientMap = null;
+    this.lightMap = null;
+    this.lightMapIntensity = 1.0;
+    this.aoMap = null;
+    this.aoMapIntensity = 1.0;
+    this.emissive = new Color(0x000000);
+    this.emissiveIntensity = 1.0;
+    this.emissiveMap = null;
+    this.bumpMap = null;
+    this.bumpScale = 1;
+    this.normalMap = null;
+    this.normalMapType = TangentSpaceNormalMap;
+    this.normalScale = new Vector2(1, 1);
+    this.displacementMap = null;
+    this.displacementScale = 1;
+    this.displacementBias = 0;
+    this.alphaMap = null;
+    this.wireframe = false;
+    this.wireframeLinewidth = 1;
+    this.wireframeLinecap = 'round';
+    this.wireframeLinejoin = 'round';
+    this.skinning = false;
+    this.morphTargets = false;
+    this.morphNormals = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.color.copy(source.color);
+    this.map = source.map;
+    this.gradientMap = source.gradientMap;
+    this.lightMap = source.lightMap;
+    this.lightMapIntensity = source.lightMapIntensity;
+    this.aoMap = source.aoMap;
+    this.aoMapIntensity = source.aoMapIntensity;
+    this.emissive.copy(source.emissive);
+    this.emissiveMap = source.emissiveMap;
+    this.emissiveIntensity = source.emissiveIntensity;
+    this.bumpMap = source.bumpMap;
+    this.bumpScale = source.bumpScale;
+    this.normalMap = source.normalMap;
+    this.normalMapType = source.normalMapType;
+    this.normalScale.copy(source.normalScale);
+    this.displacementMap = source.displacementMap;
+    this.displacementScale = source.displacementScale;
+    this.displacementBias = source.displacementBias;
+    this.alphaMap = source.alphaMap;
+    this.wireframe = source.wireframe;
+    this.wireframeLinewidth = source.wireframeLinewidth;
+    this.wireframeLinecap = source.wireframeLinecap;
+    this.wireframeLinejoin = source.wireframeLinejoin;
+    this.skinning = source.skinning;
+    this.morphTargets = source.morphTargets;
+    this.morphNormals = source.morphNormals;
+    return this;
+  }
+
+}
+
+exports.MeshToonMaterial = MeshToonMaterial;
+MeshToonMaterial.prototype.isMeshToonMaterial = true;
+/**
+ * parameters = {
+ *  opacity: <float>,
+ *
+ *  bumpMap: new THREE.Texture( <Image> ),
+ *  bumpScale: <float>,
+ *
+ *  normalMap: new THREE.Texture( <Image> ),
+ *  normalMapType: THREE.TangentSpaceNormalMap,
+ *  normalScale: <Vector2>,
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>,
+ *
+ *  flatShading: <bool>
+ * }
+ */
+
+class MeshNormalMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'MeshNormalMaterial';
+    this.bumpMap = null;
+    this.bumpScale = 1;
+    this.normalMap = null;
+    this.normalMapType = TangentSpaceNormalMap;
+    this.normalScale = new Vector2(1, 1);
+    this.displacementMap = null;
+    this.displacementScale = 1;
+    this.displacementBias = 0;
+    this.wireframe = false;
+    this.wireframeLinewidth = 1;
+    this.fog = false;
+    this.skinning = false;
+    this.morphTargets = false;
+    this.morphNormals = false;
+    this.flatShading = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.bumpMap = source.bumpMap;
+    this.bumpScale = source.bumpScale;
+    this.normalMap = source.normalMap;
+    this.normalMapType = source.normalMapType;
+    this.normalScale.copy(source.normalScale);
+    this.displacementMap = source.displacementMap;
+    this.displacementScale = source.displacementScale;
+    this.displacementBias = source.displacementBias;
+    this.wireframe = source.wireframe;
+    this.wireframeLinewidth = source.wireframeLinewidth;
+    this.skinning = source.skinning;
+    this.morphTargets = source.morphTargets;
+    this.morphNormals = source.morphNormals;
+    this.flatShading = source.flatShading;
+    return this;
+  }
+
+}
+
+exports.MeshNormalMaterial = MeshNormalMaterial;
+MeshNormalMaterial.prototype.isMeshNormalMaterial = true;
+/**
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  lightMap: new THREE.Texture( <Image> ),
+ *  lightMapIntensity: <float>
+ *
+ *  aoMap: new THREE.Texture( <Image> ),
+ *  aoMapIntensity: <float>
+ *
+ *  emissive: <hex>,
+ *  emissiveIntensity: <float>
+ *  emissiveMap: new THREE.Texture( <Image> ),
+ *
+ *  specularMap: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
+ *  combine: THREE.Multiply,
+ *  reflectivity: <float>,
+ *  refractionRatio: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>
+ * }
+ */
+
+class MeshLambertMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.type = 'MeshLambertMaterial';
+    this.color = new Color(0xffffff); // diffuse
+
+    this.map = null;
+    this.lightMap = null;
+    this.lightMapIntensity = 1.0;
+    this.aoMap = null;
+    this.aoMapIntensity = 1.0;
+    this.emissive = new Color(0x000000);
+    this.emissiveIntensity = 1.0;
+    this.emissiveMap = null;
+    this.specularMap = null;
+    this.alphaMap = null;
+    this.envMap = null;
+    this.combine = MultiplyOperation;
+    this.reflectivity = 1;
+    this.refractionRatio = 0.98;
+    this.wireframe = false;
+    this.wireframeLinewidth = 1;
+    this.wireframeLinecap = 'round';
+    this.wireframeLinejoin = 'round';
+    this.skinning = false;
+    this.morphTargets = false;
+    this.morphNormals = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.color.copy(source.color);
+    this.map = source.map;
+    this.lightMap = source.lightMap;
+    this.lightMapIntensity = source.lightMapIntensity;
+    this.aoMap = source.aoMap;
+    this.aoMapIntensity = source.aoMapIntensity;
+    this.emissive.copy(source.emissive);
+    this.emissiveMap = source.emissiveMap;
+    this.emissiveIntensity = source.emissiveIntensity;
+    this.specularMap = source.specularMap;
+    this.alphaMap = source.alphaMap;
+    this.envMap = source.envMap;
+    this.combine = source.combine;
+    this.reflectivity = source.reflectivity;
+    this.refractionRatio = source.refractionRatio;
+    this.wireframe = source.wireframe;
+    this.wireframeLinewidth = source.wireframeLinewidth;
+    this.wireframeLinecap = source.wireframeLinecap;
+    this.wireframeLinejoin = source.wireframeLinejoin;
+    this.skinning = source.skinning;
+    this.morphTargets = source.morphTargets;
+    this.morphNormals = source.morphNormals;
+    return this;
+  }
+
+}
+
+exports.MeshLambertMaterial = MeshLambertMaterial;
+MeshLambertMaterial.prototype.isMeshLambertMaterial = true;
+/**
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *
+ *  matcap: new THREE.Texture( <Image> ),
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  bumpMap: new THREE.Texture( <Image> ),
+ *  bumpScale: <float>,
+ *
+ *  normalMap: new THREE.Texture( <Image> ),
+ *  normalMapType: THREE.TangentSpaceNormalMap,
+ *  normalScale: <Vector2>,
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>
+ *
+ *  flatShading: <bool>
+ * }
+ */
+
+class MeshMatcapMaterial extends Material {
+  constructor(parameters) {
+    super();
+    this.defines = {
+      'MATCAP': ''
+    };
+    this.type = 'MeshMatcapMaterial';
+    this.color = new Color(0xffffff); // diffuse
+
+    this.matcap = null;
+    this.map = null;
+    this.bumpMap = null;
+    this.bumpScale = 1;
+    this.normalMap = null;
+    this.normalMapType = TangentSpaceNormalMap;
+    this.normalScale = new Vector2(1, 1);
+    this.displacementMap = null;
+    this.displacementScale = 1;
+    this.displacementBias = 0;
+    this.alphaMap = null;
+    this.skinning = false;
+    this.morphTargets = false;
+    this.morphNormals = false;
+    this.flatShading = false;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.defines = {
+      'MATCAP': ''
+    };
+    this.color.copy(source.color);
+    this.matcap = source.matcap;
+    this.map = source.map;
+    this.bumpMap = source.bumpMap;
+    this.bumpScale = source.bumpScale;
+    this.normalMap = source.normalMap;
+    this.normalMapType = source.normalMapType;
+    this.normalScale.copy(source.normalScale);
+    this.displacementMap = source.displacementMap;
+    this.displacementScale = source.displacementScale;
+    this.displacementBias = source.displacementBias;
+    this.alphaMap = source.alphaMap;
+    this.skinning = source.skinning;
+    this.morphTargets = source.morphTargets;
+    this.morphNormals = source.morphNormals;
+    this.flatShading = source.flatShading;
+    return this;
+  }
+
+}
+
+exports.MeshMatcapMaterial = MeshMatcapMaterial;
+MeshMatcapMaterial.prototype.isMeshMatcapMaterial = true;
+/**
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *
+ *  linewidth: <float>,
+ *
+ *  scale: <float>,
+ *  dashSize: <float>,
+ *  gapSize: <float>
+ * }
+ */
+
+class LineDashedMaterial extends LineBasicMaterial {
+  constructor(parameters) {
+    super();
+    this.type = 'LineDashedMaterial';
+    this.scale = 1;
+    this.dashSize = 3;
+    this.gapSize = 1;
+    this.setValues(parameters);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.scale = source.scale;
+    this.dashSize = source.dashSize;
+    this.gapSize = source.gapSize;
+    return this;
+  }
+
+}
+
+exports.LineDashedMaterial = LineDashedMaterial;
+LineDashedMaterial.prototype.isLineDashedMaterial = true;
+var Materials =
+/*#__PURE__*/
+Object.freeze({
+  __proto__: null,
+  ShadowMaterial: ShadowMaterial,
+  SpriteMaterial: SpriteMaterial,
+  RawShaderMaterial: RawShaderMaterial,
+  ShaderMaterial: ShaderMaterial,
+  PointsMaterial: PointsMaterial,
+  MeshPhysicalMaterial: MeshPhysicalMaterial,
+  MeshStandardMaterial: MeshStandardMaterial,
+  MeshPhongMaterial: MeshPhongMaterial,
+  MeshToonMaterial: MeshToonMaterial,
+  MeshNormalMaterial: MeshNormalMaterial,
+  MeshLambertMaterial: MeshLambertMaterial,
+  MeshDepthMaterial: MeshDepthMaterial,
+  MeshDistanceMaterial: MeshDistanceMaterial,
+  MeshBasicMaterial: MeshBasicMaterial,
+  MeshMatcapMaterial: MeshMatcapMaterial,
+  LineDashedMaterial: LineDashedMaterial,
+  LineBasicMaterial: LineBasicMaterial,
+  Material: Material
+});
+const AnimationUtils = {
+  // same as Array.prototype.slice, but also works on typed arrays
+  arraySlice: function (array, from, to) {
+    if (AnimationUtils.isTypedArray(array)) {
+      // in ios9 array.subarray(from, undefined) will return empty array
+      // but array.subarray(from) or array.subarray(from, len) is correct
+      return new array.constructor(array.subarray(from, to !== undefined ? to : array.length));
+    }
+
+    return array.slice(from, to);
+  },
+  // converts an array to a specific type
+  convertArray: function (array, type, forceClone) {
+    if (!array || // let 'undefined' and 'null' pass
+    !forceClone && array.constructor === type) return array;
+
+    if (typeof type.BYTES_PER_ELEMENT === 'number') {
+      return new type(array); // create typed array
+    }
+
+    return Array.prototype.slice.call(array); // create Array
+  },
+  isTypedArray: function (object) {
+    return ArrayBuffer.isView(object) && !(object instanceof DataView);
+  },
+  // returns an array by which times and values can be sorted
+  getKeyframeOrder: function (times) {
+    function compareTime(i, j) {
+      return times[i] - times[j];
+    }
+
+    const n = times.length;
+    const result = new Array(n);
+
+    for (let i = 0; i !== n; ++i) result[i] = i;
+
+    result.sort(compareTime);
+    return result;
+  },
+  // uses the array previously returned by 'getKeyframeOrder' to sort data
+  sortedArray: function (values, stride, order) {
+    const nValues = values.length;
+    const result = new values.constructor(nValues);
+
+    for (let i = 0, dstOffset = 0; dstOffset !== nValues; ++i) {
+      const srcOffset = order[i] * stride;
+
+      for (let j = 0; j !== stride; ++j) {
+        result[dstOffset++] = values[srcOffset + j];
+      }
+    }
+
+    return result;
+  },
+  // function for parsing AOS keyframe formats
+  flattenJSON: function (jsonKeys, times, values, valuePropertyName) {
+    let i = 1,
+        key = jsonKeys[0];
+
+    while (key !== undefined && key[valuePropertyName] === undefined) {
+      key = jsonKeys[i++];
+    }
+
+    if (key === undefined) return; // no data
+
+    let value = key[valuePropertyName];
+    if (value === undefined) return; // no data
+
+    if (Array.isArray(value)) {
+      do {
+        value = key[valuePropertyName];
+
+        if (value !== undefined) {
+          times.push(key.time);
+          values.push.apply(values, value); // push all elements
+        }
+
+        key = jsonKeys[i++];
+      } while (key !== undefined);
+    } else if (value.toArray !== undefined) {
+      // ...assume THREE.Math-ish
+      do {
+        value = key[valuePropertyName];
+
+        if (value !== undefined) {
+          times.push(key.time);
+          value.toArray(values, values.length);
+        }
+
+        key = jsonKeys[i++];
+      } while (key !== undefined);
+    } else {
+      // otherwise push as-is
+      do {
+        value = key[valuePropertyName];
+
+        if (value !== undefined) {
+          times.push(key.time);
+          values.push(value);
+        }
+
+        key = jsonKeys[i++];
+      } while (key !== undefined);
+    }
+  },
+  subclip: function (sourceClip, name, startFrame, endFrame, fps = 30) {
+    const clip = sourceClip.clone();
+    clip.name = name;
+    const tracks = [];
+
+    for (let i = 0; i < clip.tracks.length; ++i) {
+      const track = clip.tracks[i];
+      const valueSize = track.getValueSize();
+      const times = [];
+      const values = [];
+
+      for (let j = 0; j < track.times.length; ++j) {
+        const frame = track.times[j] * fps;
+        if (frame < startFrame || frame >= endFrame) continue;
+        times.push(track.times[j]);
+
+        for (let k = 0; k < valueSize; ++k) {
+          values.push(track.values[j * valueSize + k]);
+        }
+      }
+
+      if (times.length === 0) continue;
+      track.times = AnimationUtils.convertArray(times, track.times.constructor);
+      track.values = AnimationUtils.convertArray(values, track.values.constructor);
+      tracks.push(track);
+    }
+
+    clip.tracks = tracks; // find minimum .times value across all tracks in the trimmed clip
+
+    let minStartTime = Infinity;
+
+    for (let i = 0; i < clip.tracks.length; ++i) {
+      if (minStartTime > clip.tracks[i].times[0]) {
+        minStartTime = clip.tracks[i].times[0];
+      }
+    } // shift all tracks such that clip begins at t=0
+
+
+    for (let i = 0; i < clip.tracks.length; ++i) {
+      clip.tracks[i].shift(-1 * minStartTime);
+    }
+
+    clip.resetDuration();
+    return clip;
+  },
+  makeClipAdditive: function (targetClip, referenceFrame = 0, referenceClip = targetClip, fps = 30) {
+    if (fps <= 0) fps = 30;
+    const numTracks = referenceClip.tracks.length;
+    const referenceTime = referenceFrame / fps; // Make each track's values relative to the values at the reference frame
+
+    for (let i = 0; i < numTracks; ++i) {
+      const referenceTrack = referenceClip.tracks[i];
+      const referenceTrackType = referenceTrack.ValueTypeName; // Skip this track if it's non-numeric
+
+      if (referenceTrackType === 'bool' || referenceTrackType === 'string') continue; // Find the track in the target clip whose name and type matches the reference track
+
+      const targetTrack = targetClip.tracks.find(function (track) {
+        return track.name === referenceTrack.name && track.ValueTypeName === referenceTrackType;
+      });
+      if (targetTrack === undefined) continue;
+      let referenceOffset = 0;
+      const referenceValueSize = referenceTrack.getValueSize();
+
+      if (referenceTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline) {
+        referenceOffset = referenceValueSize / 3;
+      }
+
+      let targetOffset = 0;
+      const targetValueSize = targetTrack.getValueSize();
+
+      if (targetTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline) {
+        targetOffset = targetValueSize / 3;
+      }
+
+      const lastIndex = referenceTrack.times.length - 1;
+      let referenceValue; // Find the value to subtract out of the track
+
+      if (referenceTime <= referenceTrack.times[0]) {
+        // Reference frame is earlier than the first keyframe, so just use the first keyframe
+        const startIndex = referenceOffset;
+        const endIndex = referenceValueSize - referenceOffset;
+        referenceValue = AnimationUtils.arraySlice(referenceTrack.values, startIndex, endIndex);
+      } else if (referenceTime >= referenceTrack.times[lastIndex]) {
+        // Reference frame is after the last keyframe, so just use the last keyframe
+        const startIndex = lastIndex * referenceValueSize + referenceOffset;
+        const endIndex = startIndex + referenceValueSize - referenceOffset;
+        referenceValue = AnimationUtils.arraySlice(referenceTrack.values, startIndex, endIndex);
+      } else {
+        // Interpolate to the reference value
+        const interpolant = referenceTrack.createInterpolant();
+        const startIndex = referenceOffset;
+        const endIndex = referenceValueSize - referenceOffset;
+        interpolant.evaluate(referenceTime);
+        referenceValue = AnimationUtils.arraySlice(interpolant.resultBuffer, startIndex, endIndex);
+      } // Conjugate the quaternion
+
+
+      if (referenceTrackType === 'quaternion') {
+        const referenceQuat = new Quaternion().fromArray(referenceValue).normalize().conjugate();
+        referenceQuat.toArray(referenceValue);
+      } // Subtract the reference value from all of the track values
+
+
+      const numTimes = targetTrack.times.length;
+
+      for (let j = 0; j < numTimes; ++j) {
+        const valueStart = j * targetValueSize + targetOffset;
+
+        if (referenceTrackType === 'quaternion') {
+          // Multiply the conjugate for quaternion track types
+          Quaternion.multiplyQuaternionsFlat(targetTrack.values, valueStart, referenceValue, 0, targetTrack.values, valueStart);
+        } else {
+          const valueEnd = targetValueSize - targetOffset * 2; // Subtract each value for all other numeric track types
+
+          for (let k = 0; k < valueEnd; ++k) {
+            targetTrack.values[valueStart + k] -= referenceValue[k];
+          }
+        }
+      }
+    }
+
+    targetClip.blendMode = AdditiveAnimationBlendMode;
+    return targetClip;
+  }
+};
+/**
+ * Abstract base class of interpolants over parametric samples.
+ *
+ * The parameter domain is one dimensional, typically the time or a path
+ * along a curve defined by the data.
+ *
+ * The sample values can have any dimensionality and derived classes may
+ * apply special interpretations to the data.
+ *
+ * This class provides the interval seek in a Template Method, deferring
+ * the actual interpolation to derived classes.
+ *
+ * Time complexity is O(1) for linear access crossing at most two points
+ * and O(log N) for random access, where N is the number of positions.
+ *
+ * References:
+ *
+ * 		http://www.oodesign.com/template-method-pattern.html
+ *
+ */
+
+exports.AnimationUtils = AnimationUtils;
+
+function Interpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
+  this.parameterPositions = parameterPositions;
+  this._cachedIndex = 0;
+  this.resultBuffer = resultBuffer !== undefined ? resultBuffer : new sampleValues.constructor(sampleSize);
+  this.sampleValues = sampleValues;
+  this.valueSize = sampleSize;
+}
+
+Object.assign(Interpolant.prototype, {
+  evaluate: function (t) {
+    const pp = this.parameterPositions;
+    let i1 = this._cachedIndex,
+        t1 = pp[i1],
+        t0 = pp[i1 - 1];
+
+    validate_interval: {
+      seek: {
+        let right;
+
+        linear_scan: {
+          //- See http://jsperf.com/comparison-to-undefined/3
+          //- slower code:
+          //-
+          //- 				if ( t >= t1 || t1 === undefined ) {
+          forward_scan: if (!(t < t1)) {
+            for (let giveUpAt = i1 + 2;;) {
+              if (t1 === undefined) {
+                if (t < t0) break forward_scan; // after end
+
+                i1 = pp.length;
+                this._cachedIndex = i1;
+                return this.afterEnd_(i1 - 1, t, t0);
+              }
+
+              if (i1 === giveUpAt) break; // this loop
+
+              t0 = t1;
+              t1 = pp[++i1];
+
+              if (t < t1) {
+                // we have arrived at the sought interval
+                break seek;
+              }
+            } // prepare binary search on the right side of the index
+
+
+            right = pp.length;
+            break linear_scan;
+          } //- slower code:
+          //-					if ( t < t0 || t0 === undefined ) {
+
+
+          if (!(t >= t0)) {
+            // looping?
+            const t1global = pp[1];
+
+            if (t < t1global) {
+              i1 = 2; // + 1, using the scan for the details
+
+              t0 = t1global;
+            } // linear reverse scan
+
+
+            for (let giveUpAt = i1 - 2;;) {
+              if (t0 === undefined) {
+                // before start
+                this._cachedIndex = 0;
+                return this.beforeStart_(0, t, t1);
+              }
+
+              if (i1 === giveUpAt) break; // this loop
+
+              t1 = t0;
+              t0 = pp[--i1 - 1];
+
+              if (t >= t0) {
+                // we have arrived at the sought interval
+                break seek;
+              }
+            } // prepare binary search on the left side of the index
+
+
+            right = i1;
+            i1 = 0;
+            break linear_scan;
+          } // the interval is valid
+
+
+          break validate_interval;
+        } // linear scan
+        // binary search
+
+
+        while (i1 < right) {
+          const mid = i1 + right >>> 1;
+
+          if (t < pp[mid]) {
+            right = mid;
+          } else {
+            i1 = mid + 1;
+          }
+        }
+
+        t1 = pp[i1];
+        t0 = pp[i1 - 1]; // check boundary cases, again
+
+        if (t0 === undefined) {
+          this._cachedIndex = 0;
+          return this.beforeStart_(0, t, t1);
+        }
+
+        if (t1 === undefined) {
+          i1 = pp.length;
+          this._cachedIndex = i1;
+          return this.afterEnd_(i1 - 1, t0, t);
+        }
+      } // seek
+
+
+      this._cachedIndex = i1;
+      this.intervalChanged_(i1, t0, t1);
+    } // validate_interval
+
+
+    return this.interpolate_(i1, t0, t, t1);
+  },
+  settings: null,
+  // optional, subclass-specific settings structure
+  // Note: The indirection allows central control of many interpolants.
+  // --- Protected interface
+  DefaultSettings_: {},
+  getSettings_: function () {
+    return this.settings || this.DefaultSettings_;
+  },
+  copySampleValue_: function (index) {
+    // copies a sample value to the result buffer
+    const result = this.resultBuffer,
+          values = this.sampleValues,
+          stride = this.valueSize,
+          offset = index * stride;
+
+    for (let i = 0; i !== stride; ++i) {
+      result[i] = values[offset + i];
+    }
+
+    return result;
+  },
+  // Template methods for derived classes:
+  interpolate_: function ()
+  /* i1, t0, t, t1 */
+  {
+    throw new Error('call to abstract method'); // implementations shall return this.resultBuffer
+  },
+  intervalChanged_: function ()
+  /* i1, t0, t1 */
+  {// empty
+  }
+}); // DECLARE ALIAS AFTER assign prototype
+
+Object.assign(Interpolant.prototype, {
+  //( 0, t, t0 ), returns this.resultBuffer
+  beforeStart_: Interpolant.prototype.copySampleValue_,
+  //( N-1, tN-1, t ), returns this.resultBuffer
+  afterEnd_: Interpolant.prototype.copySampleValue_
+});
+/**
+ * Fast and simple cubic spline interpolant.
+ *
+ * It was derived from a Hermitian construction setting the first derivative
+ * at each sample position to the linear slope between neighboring positions
+ * over their parameter interval.
+ */
+
+function CubicInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
+  Interpolant.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
+  this._weightPrev = -0;
+  this._offsetPrev = -0;
+  this._weightNext = -0;
+  this._offsetNext = -0;
+}
+
+CubicInterpolant.prototype = Object.assign(Object.create(Interpolant.prototype), {
+  constructor: CubicInterpolant,
+  DefaultSettings_: {
+    endingStart: ZeroCurvatureEnding,
+    endingEnd: ZeroCurvatureEnding
+  },
+  intervalChanged_: function (i1, t0, t1) {
+    const pp = this.parameterPositions;
+    let iPrev = i1 - 2,
+        iNext = i1 + 1,
+        tPrev = pp[iPrev],
+        tNext = pp[iNext];
+
+    if (tPrev === undefined) {
+      switch (this.getSettings_().endingStart) {
+        case ZeroSlopeEnding:
+          // f'(t0) = 0
+          iPrev = i1;
+          tPrev = 2 * t0 - t1;
+          break;
+
+        case WrapAroundEnding:
+          // use the other end of the curve
+          iPrev = pp.length - 2;
+          tPrev = t0 + pp[iPrev] - pp[iPrev + 1];
+          break;
+
+        default:
+          // ZeroCurvatureEnding
+          // f''(t0) = 0 a.k.a. Natural Spline
+          iPrev = i1;
+          tPrev = t1;
+      }
+    }
+
+    if (tNext === undefined) {
+      switch (this.getSettings_().endingEnd) {
+        case ZeroSlopeEnding:
+          // f'(tN) = 0
+          iNext = i1;
+          tNext = 2 * t1 - t0;
+          break;
+
+        case WrapAroundEnding:
+          // use the other end of the curve
+          iNext = 1;
+          tNext = t1 + pp[1] - pp[0];
+          break;
+
+        default:
+          // ZeroCurvatureEnding
+          // f''(tN) = 0, a.k.a. Natural Spline
+          iNext = i1 - 1;
+          tNext = t0;
+      }
+    }
+
+    const halfDt = (t1 - t0) * 0.5,
+          stride = this.valueSize;
+    this._weightPrev = halfDt / (t0 - tPrev);
+    this._weightNext = halfDt / (tNext - t1);
+    this._offsetPrev = iPrev * stride;
+    this._offsetNext = iNext * stride;
+  },
+  interpolate_: function (i1, t0, t, t1) {
+    const result = this.resultBuffer,
+          values = this.sampleValues,
+          stride = this.valueSize,
+          o1 = i1 * stride,
+          o0 = o1 - stride,
+          oP = this._offsetPrev,
+          oN = this._offsetNext,
+          wP = this._weightPrev,
+          wN = this._weightNext,
+          p = (t - t0) / (t1 - t0),
+          pp = p * p,
+          ppp = pp * p; // evaluate polynomials
+
+    const sP = -wP * ppp + 2 * wP * pp - wP * p;
+    const s0 = (1 + wP) * ppp + (-1.5 - 2 * wP) * pp + (-0.5 + wP) * p + 1;
+    const s1 = (-1 - wN) * ppp + (1.5 + wN) * pp + 0.5 * p;
+    const sN = wN * ppp - wN * pp; // combine data linearly
+
+    for (let i = 0; i !== stride; ++i) {
+      result[i] = sP * values[oP + i] + s0 * values[o0 + i] + s1 * values[o1 + i] + sN * values[oN + i];
+    }
+
+    return result;
+  }
+});
+
+function LinearInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
+  Interpolant.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
+}
+
+LinearInterpolant.prototype = Object.assign(Object.create(Interpolant.prototype), {
+  constructor: LinearInterpolant,
+  interpolate_: function (i1, t0, t, t1) {
+    const result = this.resultBuffer,
+          values = this.sampleValues,
+          stride = this.valueSize,
+          offset1 = i1 * stride,
+          offset0 = offset1 - stride,
+          weight1 = (t - t0) / (t1 - t0),
+          weight0 = 1 - weight1;
+
+    for (let i = 0; i !== stride; ++i) {
+      result[i] = values[offset0 + i] * weight0 + values[offset1 + i] * weight1;
+    }
+
+    return result;
+  }
+});
+/**
+ *
+ * Interpolant that evaluates to the sample value at the position preceeding
+ * the parameter.
+ */
+
+function DiscreteInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
+  Interpolant.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
+}
+
+DiscreteInterpolant.prototype = Object.assign(Object.create(Interpolant.prototype), {
+  constructor: DiscreteInterpolant,
+  interpolate_: function (i1
+  /*, t0, t, t1 */
+  ) {
+    return this.copySampleValue_(i1 - 1);
+  }
+});
+
+class KeyframeTrack {
+  constructor(name, times, values, interpolation) {
+    if (name === undefined) throw new Error('THREE.KeyframeTrack: track name is undefined');
+    if (times === undefined || times.length === 0) throw new Error('THREE.KeyframeTrack: no keyframes in track named ' + name);
+    this.name = name;
+    this.times = AnimationUtils.convertArray(times, this.TimeBufferType);
+    this.values = AnimationUtils.convertArray(values, this.ValueBufferType);
+    this.setInterpolation(interpolation || this.DefaultInterpolation);
+  } // Serialization (in static context, because of constructor invocation
+  // and automatic invocation of .toJSON):
+
+
+  static toJSON(track) {
+    const trackType = track.constructor;
+    let json; // derived classes can define a static toJSON method
+
+    if (trackType.toJSON !== this.toJSON) {
+      json = trackType.toJSON(track);
+    } else {
+      // by default, we assume the data can be serialized as-is
+      json = {
+        'name': track.name,
+        'times': AnimationUtils.convertArray(track.times, Array),
+        'values': AnimationUtils.convertArray(track.values, Array)
+      };
+      const interpolation = track.getInterpolation();
+
+      if (interpolation !== track.DefaultInterpolation) {
+        json.interpolation = interpolation;
+      }
+    }
+
+    json.type = track.ValueTypeName; // mandatory
+
+    return json;
+  }
+
+  InterpolantFactoryMethodDiscrete(result) {
+    return new DiscreteInterpolant(this.times, this.values, this.getValueSize(), result);
+  }
+
+  InterpolantFactoryMethodLinear(result) {
+    return new LinearInterpolant(this.times, this.values, this.getValueSize(), result);
+  }
+
+  InterpolantFactoryMethodSmooth(result) {
+    return new CubicInterpolant(this.times, this.values, this.getValueSize(), result);
+  }
+
+  setInterpolation(interpolation) {
+    let factoryMethod;
+
+    switch (interpolation) {
+      case InterpolateDiscrete:
+        factoryMethod = this.InterpolantFactoryMethodDiscrete;
+        break;
+
+      case InterpolateLinear:
+        factoryMethod = this.InterpolantFactoryMethodLinear;
+        break;
+
+      case InterpolateSmooth:
+        factoryMethod = this.InterpolantFactoryMethodSmooth;
+        break;
+    }
+
+    if (factoryMethod === undefined) {
+      const message = 'unsupported interpolation for ' + this.ValueTypeName + ' keyframe track named ' + this.name;
+
+      if (this.createInterpolant === undefined) {
+        // fall back to default, unless the default itself is messed up
+        if (interpolation !== this.DefaultInterpolation) {
+          this.setInterpolation(this.DefaultInterpolation);
+        } else {
+          throw new Error(message); // fatal, in this case
+        }
+      }
+
+      console.warn('THREE.KeyframeTrack:', message);
+      return this;
+    }
+
+    this.createInterpolant = factoryMethod;
+    return this;
+  }
+
+  getInterpolation() {
+    switch (this.createInterpolant) {
+      case this.InterpolantFactoryMethodDiscrete:
+        return InterpolateDiscrete;
+
+      case this.InterpolantFactoryMethodLinear:
+        return InterpolateLinear;
+
+      case this.InterpolantFactoryMethodSmooth:
+        return InterpolateSmooth;
+    }
+  }
+
+  getValueSize() {
+    return this.values.length / this.times.length;
+  } // move all keyframes either forwards or backwards in time
+
+
+  shift(timeOffset) {
+    if (timeOffset !== 0.0) {
+      const times = this.times;
+
+      for (let i = 0, n = times.length; i !== n; ++i) {
+        times[i] += timeOffset;
+      }
+    }
+
+    return this;
+  } // scale all keyframe times by a factor (useful for frame <-> seconds conversions)
+
+
+  scale(timeScale) {
+    if (timeScale !== 1.0) {
+      const times = this.times;
+
+      for (let i = 0, n = times.length; i !== n; ++i) {
+        times[i] *= timeScale;
+      }
+    }
+
+    return this;
+  } // removes keyframes before and after animation without changing any values within the range [startTime, endTime].
+  // IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
+
+
+  trim(startTime, endTime) {
+    const times = this.times,
+          nKeys = times.length;
+    let from = 0,
+        to = nKeys - 1;
+
+    while (from !== nKeys && times[from] < startTime) {
+      ++from;
+    }
+
+    while (to !== -1 && times[to] > endTime) {
+      --to;
+    }
+
+    ++to; // inclusive -> exclusive bound
+
+    if (from !== 0 || to !== nKeys) {
+      // empty tracks are forbidden, so keep at least one keyframe
+      if (from >= to) {
+        to = Math.max(to, 1);
+        from = to - 1;
+      }
+
+      const stride = this.getValueSize();
+      this.times = AnimationUtils.arraySlice(times, from, to);
+      this.values = AnimationUtils.arraySlice(this.values, from * stride, to * stride);
+    }
+
+    return this;
+  } // ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
+
+
+  validate() {
+    let valid = true;
+    const valueSize = this.getValueSize();
+
+    if (valueSize - Math.floor(valueSize) !== 0) {
+      console.error('THREE.KeyframeTrack: Invalid value size in track.', this);
+      valid = false;
+    }
+
+    const times = this.times,
+          values = this.values,
+          nKeys = times.length;
+
+    if (nKeys === 0) {
+      console.error('THREE.KeyframeTrack: Track is empty.', this);
+      valid = false;
+    }
+
+    let prevTime = null;
+
+    for (let i = 0; i !== nKeys; i++) {
+      const currTime = times[i];
+
+      if (typeof currTime === 'number' && isNaN(currTime)) {
+        console.error('THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime);
+        valid = false;
+        break;
+      }
+
+      if (prevTime !== null && prevTime > currTime) {
+        console.error('THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime);
+        valid = false;
+        break;
+      }
+
+      prevTime = currTime;
+    }
+
+    if (values !== undefined) {
+      if (AnimationUtils.isTypedArray(values)) {
+        for (let i = 0, n = values.length; i !== n; ++i) {
+          const value = values[i];
+
+          if (isNaN(value)) {
+            console.error('THREE.KeyframeTrack: Value is not a valid number.', this, i, value);
+            valid = false;
+            break;
+          }
+        }
+      }
+    }
+
+    return valid;
+  } // removes equivalent sequential keys as common in morph target sequences
+  // (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
+
+
+  optimize() {
+    // times or values may be shared with other tracks, so overwriting is unsafe
+    const times = AnimationUtils.arraySlice(this.times),
+          values = AnimationUtils.arraySlice(this.values),
+          stride = this.getValueSize(),
+          smoothInterpolation = this.getInterpolation() === InterpolateSmooth,
+          lastIndex = times.length - 1;
+    let writeIndex = 1;
+
+    for (let i = 1; i < lastIndex; ++i) {
+      let keep = false;
+      const time = times[i];
+      const timeNext = times[i + 1]; // remove adjacent keyframes scheduled at the same time
+
+      if (time !== timeNext && (i !== 1 || time !== times[0])) {
+        if (!smoothInterpolation) {
+          // remove unnecessary keyframes same as their neighbors
+          const offset = i * stride,
+                offsetP = offset - stride,
+                offsetN = offset + stride;
+
+          for (let j = 0; j !== stride; ++j) {
+            const value = values[offset + j];
+
+            if (value !== values[offsetP + j] || value !== values[offsetN + j]) {
+              keep = true;
+              break;
+            }
+          }
+        } else {
+          keep = true;
+        }
+      } // in-place compaction
+
+
+      if (keep) {
+        if (i !== writeIndex) {
+          times[writeIndex] = times[i];
+          const readOffset = i * stride,
+                writeOffset = writeIndex * stride;
+
+          for (let j = 0; j !== stride; ++j) {
+            values[writeOffset + j] = values[readOffset + j];
+          }
+        }
+
+        ++writeIndex;
+      }
+    } // flush last keyframe (compaction looks ahead)
+
+
+    if (lastIndex > 0) {
+      times[writeIndex] = times[lastIndex];
+
+      for (let readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++j) {
+        values[writeOffset + j] = values[readOffset + j];
+      }
+
+      ++writeIndex;
+    }
+
+    if (writeIndex !== times.length) {
+      this.times = AnimationUtils.arraySlice(times, 0, writeIndex);
+      this.values = AnimationUtils.arraySlice(values, 0, writeIndex * stride);
+    } else {
+      this.times = times;
+      this.values = values;
+    }
+
+    return this;
+  }
+
+  clone() {
+    const times = AnimationUtils.arraySlice(this.times, 0);
+    const values = AnimationUtils.arraySlice(this.values, 0);
+    const TypedKeyframeTrack = this.constructor;
+    const track = new TypedKeyframeTrack(this.name, times, values); // Interpolant argument to constructor is not saved, so copy the factory method directly.
+
+    track.createInterpolant = this.createInterpolant;
+    return track;
+  }
+
+}
+
+exports.KeyframeTrack = KeyframeTrack;
+KeyframeTrack.prototype.TimeBufferType = Float32Array;
+KeyframeTrack.prototype.ValueBufferType = Float32Array;
+KeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;
+/**
+ * A Track of Boolean keyframe values.
+ */
+
+class BooleanKeyframeTrack extends KeyframeTrack {}
+
+exports.BooleanKeyframeTrack = BooleanKeyframeTrack;
+BooleanKeyframeTrack.prototype.ValueTypeName = 'bool';
+BooleanKeyframeTrack.prototype.ValueBufferType = Array;
+BooleanKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
+BooleanKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
+BooleanKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;
+/**
+ * A Track of keyframe values that represent color.
+ */
+
+class ColorKeyframeTrack extends KeyframeTrack {}
+
+exports.ColorKeyframeTrack = ColorKeyframeTrack;
+ColorKeyframeTrack.prototype.ValueTypeName = 'color';
+/**
+ * A Track of numeric keyframe values.
+ */
+
+class NumberKeyframeTrack extends KeyframeTrack {}
+
+exports.NumberKeyframeTrack = NumberKeyframeTrack;
+NumberKeyframeTrack.prototype.ValueTypeName = 'number';
+/**
+ * Spherical linear unit quaternion interpolant.
+ */
+
+function QuaternionLinearInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
+  Interpolant.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
+}
+
+QuaternionLinearInterpolant.prototype = Object.assign(Object.create(Interpolant.prototype), {
+  constructor: QuaternionLinearInterpolant,
+  interpolate_: function (i1, t0, t, t1) {
+    const result = this.resultBuffer,
+          values = this.sampleValues,
+          stride = this.valueSize,
+          alpha = (t - t0) / (t1 - t0);
+    let offset = i1 * stride;
+
+    for (let end = offset + stride; offset !== end; offset += 4) {
+      Quaternion.slerpFlat(result, 0, values, offset - stride, values, offset, alpha);
+    }
+
+    return result;
+  }
+});
+/**
+ * A Track of quaternion keyframe values.
+ */
+
+class QuaternionKeyframeTrack extends KeyframeTrack {
+  InterpolantFactoryMethodLinear(result) {
+    return new QuaternionLinearInterpolant(this.times, this.values, this.getValueSize(), result);
+  }
+
+}
+
+exports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;
+QuaternionKeyframeTrack.prototype.ValueTypeName = 'quaternion'; // ValueBufferType is inherited
+
+QuaternionKeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;
+QuaternionKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;
+/**
+ * A Track that interpolates Strings
+ */
+
+class StringKeyframeTrack extends KeyframeTrack {}
+
+exports.StringKeyframeTrack = StringKeyframeTrack;
+StringKeyframeTrack.prototype.ValueTypeName = 'string';
+StringKeyframeTrack.prototype.ValueBufferType = Array;
+StringKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
+StringKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
+StringKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;
+/**
+ * A Track of vectored keyframe values.
+ */
+
+class VectorKeyframeTrack extends KeyframeTrack {}
+
+exports.VectorKeyframeTrack = VectorKeyframeTrack;
+VectorKeyframeTrack.prototype.ValueTypeName = 'vector';
+
+class AnimationClip {
+  constructor(name, duration = -1, tracks, blendMode = NormalAnimationBlendMode) {
+    this.name = name;
+    this.tracks = tracks;
+    this.duration = duration;
+    this.blendMode = blendMode;
+    this.uuid = MathUtils.generateUUID(); // this means it should figure out its duration by scanning the tracks
+
+    if (this.duration < 0) {
+      this.resetDuration();
+    }
+  }
+
+  static parse(json) {
+    const tracks = [],
+          jsonTracks = json.tracks,
+          frameTime = 1.0 / (json.fps || 1.0);
+
+    for (let i = 0, n = jsonTracks.length; i !== n; ++i) {
+      tracks.push(parseKeyframeTrack(jsonTracks[i]).scale(frameTime));
+    }
+
+    const clip = new this(json.name, json.duration, tracks, json.blendMode);
+    clip.uuid = json.uuid;
+    return clip;
+  }
+
+  static toJSON(clip) {
+    const tracks = [],
+          clipTracks = clip.tracks;
+    const json = {
+      'name': clip.name,
+      'duration': clip.duration,
+      'tracks': tracks,
+      'uuid': clip.uuid,
+      'blendMode': clip.blendMode
+    };
+
+    for (let i = 0, n = clipTracks.length; i !== n; ++i) {
+      tracks.push(KeyframeTrack.toJSON(clipTracks[i]));
+    }
+
+    return json;
+  }
+
+  static CreateFromMorphTargetSequence(name, morphTargetSequence, fps, noLoop) {
+    const numMorphTargets = morphTargetSequence.length;
+    const tracks = [];
+
+    for (let i = 0; i < numMorphTargets; i++) {
+      let times = [];
+      let values = [];
+      times.push((i + numMorphTargets - 1) % numMorphTargets, i, (i + 1) % numMorphTargets);
+      values.push(0, 1, 0);
+      const order = AnimationUtils.getKeyframeOrder(times);
+      times = AnimationUtils.sortedArray(times, 1, order);
+      values = AnimationUtils.sortedArray(values, 1, order); // if there is a key at the first frame, duplicate it as the
+      // last frame as well for perfect loop.
+
+      if (!noLoop && times[0] === 0) {
+        times.push(numMorphTargets);
+        values.push(values[0]);
+      }
+
+      tracks.push(new NumberKeyframeTrack('.morphTargetInfluences[' + morphTargetSequence[i].name + ']', times, values).scale(1.0 / fps));
+    }
+
+    return new this(name, -1, tracks);
+  }
+
+  static findByName(objectOrClipArray, name) {
+    let clipArray = objectOrClipArray;
+
+    if (!Array.isArray(objectOrClipArray)) {
+      const o = objectOrClipArray;
+      clipArray = o.geometry && o.geometry.animations || o.animations;
+    }
+
+    for (let i = 0; i < clipArray.length; i++) {
+      if (clipArray[i].name === name) {
+        return clipArray[i];
+      }
+    }
+
+    return null;
+  }
+
+  static CreateClipsFromMorphTargetSequences(morphTargets, fps, noLoop) {
+    const animationToMorphTargets = {}; // tested with https://regex101.com/ on trick sequences
+    // such flamingo_flyA_003, flamingo_run1_003, crdeath0059
+
+    const pattern = /^([\w-]*?)([\d]+)$/; // sort morph target names into animation groups based
+    // patterns like Walk_001, Walk_002, Run_001, Run_002
+
+    for (let i = 0, il = morphTargets.length; i < il; i++) {
+      const morphTarget = morphTargets[i];
+      const parts = morphTarget.name.match(pattern);
+
+      if (parts && parts.length > 1) {
+        const name = parts[1];
+        let animationMorphTargets = animationToMorphTargets[name];
+
+        if (!animationMorphTargets) {
+          animationToMorphTargets[name] = animationMorphTargets = [];
+        }
+
+        animationMorphTargets.push(morphTarget);
+      }
+    }
+
+    const clips = [];
+
+    for (const name in animationToMorphTargets) {
+      clips.push(this.CreateFromMorphTargetSequence(name, animationToMorphTargets[name], fps, noLoop));
+    }
+
+    return clips;
+  } // parse the animation.hierarchy format
+
+
+  static parseAnimation(animation, bones) {
+    if (!animation) {
+      console.error('THREE.AnimationClip: No animation in JSONLoader data.');
+      return null;
+    }
+
+    const addNonemptyTrack = function (trackType, trackName, animationKeys, propertyName, destTracks) {
+      // only return track if there are actually keys.
+      if (animationKeys.length !== 0) {
+        const times = [];
+        const values = [];
+        AnimationUtils.flattenJSON(animationKeys, times, values, propertyName); // empty keys are filtered out, so check again
+
+        if (times.length !== 0) {
+          destTracks.push(new trackType(trackName, times, values));
+        }
+      }
+    };
+
+    const tracks = [];
+    const clipName = animation.name || 'default';
+    const fps = animation.fps || 30;
+    const blendMode = animation.blendMode; // automatic length determination in AnimationClip.
+
+    let duration = animation.length || -1;
+    const hierarchyTracks = animation.hierarchy || [];
+
+    for (let h = 0; h < hierarchyTracks.length; h++) {
+      const animationKeys = hierarchyTracks[h].keys; // skip empty tracks
+
+      if (!animationKeys || animationKeys.length === 0) continue; // process morph targets
+
+      if (animationKeys[0].morphTargets) {
+        // figure out all morph targets used in this track
+        const morphTargetNames = {};
+        let k;
+
+        for (k = 0; k < animationKeys.length; k++) {
+          if (animationKeys[k].morphTargets) {
+            for (let m = 0; m < animationKeys[k].morphTargets.length; m++) {
+              morphTargetNames[animationKeys[k].morphTargets[m]] = -1;
+            }
+          }
+        } // create a track for each morph target with all zero
+        // morphTargetInfluences except for the keys in which
+        // the morphTarget is named.
+
+
+        for (const morphTargetName in morphTargetNames) {
+          const times = [];
+          const values = [];
+
+          for (let m = 0; m !== animationKeys[k].morphTargets.length; ++m) {
+            const animationKey = animationKeys[k];
+            times.push(animationKey.time);
+            values.push(animationKey.morphTarget === morphTargetName ? 1 : 0);
+          }
+
+          tracks.push(new NumberKeyframeTrack('.morphTargetInfluence[' + morphTargetName + ']', times, values));
+        }
+
+        duration = morphTargetNames.length * (fps || 1.0);
+      } else {
+        // ...assume skeletal animation
+        const boneName = '.bones[' + bones[h].name + ']';
+        addNonemptyTrack(VectorKeyframeTrack, boneName + '.position', animationKeys, 'pos', tracks);
+        addNonemptyTrack(QuaternionKeyframeTrack, boneName + '.quaternion', animationKeys, 'rot', tracks);
+        addNonemptyTrack(VectorKeyframeTrack, boneName + '.scale', animationKeys, 'scl', tracks);
+      }
+    }
+
+    if (tracks.length === 0) {
+      return null;
+    }
+
+    const clip = new this(clipName, duration, tracks, blendMode);
+    return clip;
+  }
+
+  resetDuration() {
+    const tracks = this.tracks;
+    let duration = 0;
+
+    for (let i = 0, n = tracks.length; i !== n; ++i) {
+      const track = this.tracks[i];
+      duration = Math.max(duration, track.times[track.times.length - 1]);
+    }
+
+    this.duration = duration;
+    return this;
+  }
+
+  trim() {
+    for (let i = 0; i < this.tracks.length; i++) {
+      this.tracks[i].trim(0, this.duration);
+    }
+
+    return this;
+  }
+
+  validate() {
+    let valid = true;
+
+    for (let i = 0; i < this.tracks.length; i++) {
+      valid = valid && this.tracks[i].validate();
+    }
+
+    return valid;
+  }
+
+  optimize() {
+    for (let i = 0; i < this.tracks.length; i++) {
+      this.tracks[i].optimize();
+    }
+
+    return this;
+  }
+
+  clone() {
+    const tracks = [];
+
+    for (let i = 0; i < this.tracks.length; i++) {
+      tracks.push(this.tracks[i].clone());
+    }
+
+    return new this.constructor(this.name, this.duration, tracks, this.blendMode);
+  }
+
+  toJSON() {
+    return this.constructor.toJSON(this);
+  }
+
+}
+
+exports.AnimationClip = AnimationClip;
+
+function getTrackTypeForValueTypeName(typeName) {
+  switch (typeName.toLowerCase()) {
+    case 'scalar':
+    case 'double':
+    case 'float':
+    case 'number':
+    case 'integer':
+      return NumberKeyframeTrack;
+
+    case 'vector':
+    case 'vector2':
+    case 'vector3':
+    case 'vector4':
+      return VectorKeyframeTrack;
+
+    case 'color':
+      return ColorKeyframeTrack;
+
+    case 'quaternion':
+      return QuaternionKeyframeTrack;
+
+    case 'bool':
+    case 'boolean':
+      return BooleanKeyframeTrack;
+
+    case 'string':
+      return StringKeyframeTrack;
+  }
+
+  throw new Error('THREE.KeyframeTrack: Unsupported typeName: ' + typeName);
+}
+
+function parseKeyframeTrack(json) {
+  if (json.type === undefined) {
+    throw new Error('THREE.KeyframeTrack: track type undefined, can not parse');
+  }
+
+  const trackType = getTrackTypeForValueTypeName(json.type);
+
+  if (json.times === undefined) {
+    const times = [],
+          values = [];
+    AnimationUtils.flattenJSON(json.keys, times, values, 'value');
+    json.times = times;
+    json.values = values;
+  } // derived classes can define a static parse method
+
+
+  if (trackType.parse !== undefined) {
+    return trackType.parse(json);
+  } else {
+    // by default, we assume a constructor compatible with the base
+    return new trackType(json.name, json.times, json.values, json.interpolation);
+  }
+}
+
+const Cache = {
+  enabled: false,
+  files: {},
+  add: function (key, file) {
+    if (this.enabled === false) return; // console.log( 'THREE.Cache', 'Adding key:', key );
+
+    this.files[key] = file;
+  },
+  get: function (key) {
+    if (this.enabled === false) return; // console.log( 'THREE.Cache', 'Checking key:', key );
+
+    return this.files[key];
+  },
+  remove: function (key) {
+    delete this.files[key];
+  },
+  clear: function () {
+    this.files = {};
+  }
+};
+exports.Cache = Cache;
+
+function LoadingManager(onLoad, onProgress, onError) {
+  const scope = this;
+  let isLoading = false;
+  let itemsLoaded = 0;
+  let itemsTotal = 0;
+  let urlModifier = undefined;
+  const handlers = []; // Refer to #5689 for the reason why we don't set .onStart
+  // in the constructor
+
+  this.onStart = undefined;
+  this.onLoad = onLoad;
+  this.onProgress = onProgress;
+  this.onError = onError;
+
+  this.itemStart = function (url) {
+    itemsTotal++;
+
+    if (isLoading === false) {
+      if (scope.onStart !== undefined) {
+        scope.onStart(url, itemsLoaded, itemsTotal);
+      }
+    }
+
+    isLoading = true;
+  };
+
+  this.itemEnd = function (url) {
+    itemsLoaded++;
+
+    if (scope.onProgress !== undefined) {
+      scope.onProgress(url, itemsLoaded, itemsTotal);
+    }
+
+    if (itemsLoaded === itemsTotal) {
+      isLoading = false;
+
+      if (scope.onLoad !== undefined) {
+        scope.onLoad();
+      }
+    }
+  };
+
+  this.itemError = function (url) {
+    if (scope.onError !== undefined) {
+      scope.onError(url);
+    }
+  };
+
+  this.resolveURL = function (url) {
+    if (urlModifier) {
+      return urlModifier(url);
+    }
+
+    return url;
+  };
+
+  this.setURLModifier = function (transform) {
+    urlModifier = transform;
+    return this;
+  };
+
+  this.addHandler = function (regex, loader) {
+    handlers.push(regex, loader);
+    return this;
+  };
+
+  this.removeHandler = function (regex) {
+    const index = handlers.indexOf(regex);
+
+    if (index !== -1) {
+      handlers.splice(index, 2);
+    }
+
+    return this;
+  };
+
+  this.getHandler = function (file) {
+    for (let i = 0, l = handlers.length; i < l; i += 2) {
+      const regex = handlers[i];
+      const loader = handlers[i + 1];
+      if (regex.global) regex.lastIndex = 0; // see #17920
+
+      if (regex.test(file)) {
+        return loader;
+      }
+    }
+
+    return null;
+  };
+}
+
+const DefaultLoadingManager = new LoadingManager();
+exports.DefaultLoadingManager = DefaultLoadingManager;
+
+function Loader(manager) {
+  this.manager = manager !== undefined ? manager : DefaultLoadingManager;
+  this.crossOrigin = 'anonymous';
+  this.withCredentials = false;
+  this.path = '';
+  this.resourcePath = '';
+  this.requestHeader = {};
+}
+
+Object.assign(Loader.prototype, {
+  load: function ()
+  /* url, onLoad, onProgress, onError */
+  {},
+  loadAsync: function (url, onProgress) {
+    const scope = this;
+    return new Promise(function (resolve, reject) {
+      scope.load(url, resolve, onProgress, reject);
+    });
+  },
+  parse: function ()
+  /* data */
+  {},
+  setCrossOrigin: function (crossOrigin) {
+    this.crossOrigin = crossOrigin;
+    return this;
+  },
+  setWithCredentials: function (value) {
+    this.withCredentials = value;
+    return this;
+  },
+  setPath: function (path) {
+    this.path = path;
+    return this;
+  },
+  setResourcePath: function (resourcePath) {
+    this.resourcePath = resourcePath;
+    return this;
+  },
+  setRequestHeader: function (requestHeader) {
+    this.requestHeader = requestHeader;
+    return this;
+  }
+});
+const loading = {};
+
+function FileLoader(manager) {
+  Loader.call(this, manager);
+}
+
+FileLoader.prototype = Object.assign(Object.create(Loader.prototype), {
+  constructor: FileLoader,
+  load: function (url, onLoad, onProgress, onError) {
+    if (url === undefined) url = '';
+    if (this.path !== undefined) url = this.path + url;
+    url = this.manager.resolveURL(url);
+    const scope = this;
+    const cached = Cache.get(url);
+
+    if (cached !== undefined) {
+      scope.manager.itemStart(url);
+      setTimeout(function () {
+        if (onLoad) onLoad(cached);
+        scope.manager.itemEnd(url);
+      }, 0);
+      return cached;
+    } // Check if request is duplicate
+
+
+    if (loading[url] !== undefined) {
+      loading[url].push({
+        onLoad: onLoad,
+        onProgress: onProgress,
+        onError: onError
+      });
+      return;
+    } // Check for data: URI
+
+
+    const dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;
+    const dataUriRegexResult = url.match(dataUriRegex);
+    let request; // Safari can not handle Data URIs through XMLHttpRequest so process manually
+
+    if (dataUriRegexResult) {
+      const mimeType = dataUriRegexResult[1];
+      const isBase64 = !!dataUriRegexResult[2];
+      let data = dataUriRegexResult[3];
+      data = decodeURIComponent(data);
+      if (isBase64) data = atob(data);
+
+      try {
+        let response;
+        const responseType = (this.responseType || '').toLowerCase();
+
+        switch (responseType) {
+          case 'arraybuffer':
+          case 'blob':
+            const view = new Uint8Array(data.length);
+
+            for (let i = 0; i < data.length; i++) {
+              view[i] = data.charCodeAt(i);
+            }
+
+            if (responseType === 'blob') {
+              response = new Blob([view.buffer], {
+                type: mimeType
+              });
+            } else {
+              response = view.buffer;
+            }
+
+            break;
+
+          case 'document':
+            const parser = new DOMParser();
+            response = parser.parseFromString(data, mimeType);
+            break;
+
+          case 'json':
+            response = JSON.parse(data);
+            break;
+
+          default:
+            // 'text' or other
+            response = data;
+            break;
+        } // Wait for next browser tick like standard XMLHttpRequest event dispatching does
+
+
+        setTimeout(function () {
+          if (onLoad) onLoad(response);
+          scope.manager.itemEnd(url);
+        }, 0);
+      } catch (error) {
+        // Wait for next browser tick like standard XMLHttpRequest event dispatching does
+        setTimeout(function () {
+          if (onError) onError(error);
+          scope.manager.itemError(url);
+          scope.manager.itemEnd(url);
+        }, 0);
+      }
+    } else {
+      // Initialise array for duplicate requests
+      loading[url] = [];
+      loading[url].push({
+        onLoad: onLoad,
+        onProgress: onProgress,
+        onError: onError
+      });
+      request = new XMLHttpRequest();
+      request.open('GET', url, true);
+      request.addEventListener('load', function (event) {
+        const response = this.response;
+        const callbacks = loading[url];
+        delete loading[url];
+
+        if (this.status === 200 || this.status === 0) {
+          // Some browsers return HTTP Status 0 when using non-http protocol
+          // e.g. 'file://' or 'data://'. Handle as success.
+          if (this.status === 0) console.warn('THREE.FileLoader: HTTP Status 0 received.'); // Add to cache only on HTTP success, so that we do not cache
+          // error response bodies as proper responses to requests.
+
+          Cache.add(url, response);
+
+          for (let i = 0, il = callbacks.length; i < il; i++) {
+            const callback = callbacks[i];
+            if (callback.onLoad) callback.onLoad(response);
+          }
+
+          scope.manager.itemEnd(url);
+        } else {
+          for (let i = 0, il = callbacks.length; i < il; i++) {
+            const callback = callbacks[i];
+            if (callback.onError) callback.onError(event);
+          }
+
+          scope.manager.itemError(url);
+          scope.manager.itemEnd(url);
+        }
+      }, false);
+      request.addEventListener('progress', function (event) {
+        const callbacks = loading[url];
+
+        for (let i = 0, il = callbacks.length; i < il; i++) {
+          const callback = callbacks[i];
+          if (callback.onProgress) callback.onProgress(event);
+        }
+      }, false);
+      request.addEventListener('error', function (event) {
+        const callbacks = loading[url];
+        delete loading[url];
+
+        for (let i = 0, il = callbacks.length; i < il; i++) {
+          const callback = callbacks[i];
+          if (callback.onError) callback.onError(event);
+        }
+
+        scope.manager.itemError(url);
+        scope.manager.itemEnd(url);
+      }, false);
+      request.addEventListener('abort', function (event) {
+        const callbacks = loading[url];
+        delete loading[url];
+
+        for (let i = 0, il = callbacks.length; i < il; i++) {
+          const callback = callbacks[i];
+          if (callback.onError) callback.onError(event);
+        }
+
+        scope.manager.itemError(url);
+        scope.manager.itemEnd(url);
+      }, false);
+      if (this.responseType !== undefined) request.responseType = this.responseType;
+      if (this.withCredentials !== undefined) request.withCredentials = this.withCredentials;
+      if (request.overrideMimeType) request.overrideMimeType(this.mimeType !== undefined ? this.mimeType : 'text/plain');
+
+      for (const header in this.requestHeader) {
+        request.setRequestHeader(header, this.requestHeader[header]);
+      }
+
+      request.send(null);
+    }
+
+    scope.manager.itemStart(url);
+    return request;
+  },
+  setResponseType: function (value) {
+    this.responseType = value;
+    return this;
+  },
+  setMimeType: function (value) {
+    this.mimeType = value;
+    return this;
+  }
+});
+
+class AnimationLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+  }
+
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const loader = new FileLoader(this.manager);
+    loader.setPath(this.path);
+    loader.setRequestHeader(this.requestHeader);
+    loader.setWithCredentials(this.withCredentials);
+    loader.load(url, function (text) {
+      try {
+        onLoad(scope.parse(JSON.parse(text)));
+      } catch (e) {
+        if (onError) {
+          onError(e);
+        } else {
+          console.error(e);
+        }
+
+        scope.manager.itemError(url);
+      }
+    }, onProgress, onError);
+  }
+
+  parse(json) {
+    const animations = [];
+
+    for (let i = 0; i < json.length; i++) {
+      const clip = AnimationClip.parse(json[i]);
+      animations.push(clip);
+    }
+
+    return animations;
+  }
+
+}
+/**
+ * Abstract Base class to block based textures loader (dds, pvr, ...)
+ *
+ * Sub classes have to implement the parse() method which will be used in load().
+ */
+
+
+exports.AnimationLoader = AnimationLoader;
+
+function CompressedTextureLoader(manager) {
+  Loader.call(this, manager);
+}
+
+CompressedTextureLoader.prototype = Object.assign(Object.create(Loader.prototype), {
+  constructor: CompressedTextureLoader,
+  load: function (url, onLoad, onProgress, onError) {
+    const scope = this;
+    const images = [];
+    const texture = new CompressedTexture();
+    const loader = new FileLoader(this.manager);
+    loader.setPath(this.path);
+    loader.setResponseType('arraybuffer');
+    loader.setRequestHeader(this.requestHeader);
+    loader.setWithCredentials(scope.withCredentials);
+    let loaded = 0;
+
+    function loadTexture(i) {
+      loader.load(url[i], function (buffer) {
+        const texDatas = scope.parse(buffer, true);
+        images[i] = {
+          width: texDatas.width,
+          height: texDatas.height,
+          format: texDatas.format,
+          mipmaps: texDatas.mipmaps
+        };
+        loaded += 1;
+
+        if (loaded === 6) {
+          if (texDatas.mipmapCount === 1) texture.minFilter = LinearFilter;
+          texture.image = images;
+          texture.format = texDatas.format;
+          texture.needsUpdate = true;
+          if (onLoad) onLoad(texture);
+        }
+      }, onProgress, onError);
+    }
+
+    if (Array.isArray(url)) {
+      for (let i = 0, il = url.length; i < il; ++i) {
+        loadTexture(i);
+      }
+    } else {
+      // compressed cubemap texture stored in a single DDS file
+      loader.load(url, function (buffer) {
+        const texDatas = scope.parse(buffer, true);
+
+        if (texDatas.isCubemap) {
+          const faces = texDatas.mipmaps.length / texDatas.mipmapCount;
+
+          for (let f = 0; f < faces; f++) {
+            images[f] = {
+              mipmaps: []
+            };
+
+            for (let i = 0; i < texDatas.mipmapCount; i++) {
+              images[f].mipmaps.push(texDatas.mipmaps[f * texDatas.mipmapCount + i]);
+              images[f].format = texDatas.format;
+              images[f].width = texDatas.width;
+              images[f].height = texDatas.height;
+            }
+          }
+
+          texture.image = images;
+        } else {
+          texture.image.width = texDatas.width;
+          texture.image.height = texDatas.height;
+          texture.mipmaps = texDatas.mipmaps;
+        }
+
+        if (texDatas.mipmapCount === 1) {
+          texture.minFilter = LinearFilter;
+        }
+
+        texture.format = texDatas.format;
+        texture.needsUpdate = true;
+        if (onLoad) onLoad(texture);
+      }, onProgress, onError);
+    }
+
+    return texture;
+  }
+});
+
+class ImageLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+  }
+
+  load(url, onLoad, onProgress, onError) {
+    if (this.path !== undefined) url = this.path + url;
+    url = this.manager.resolveURL(url);
+    const scope = this;
+    const cached = Cache.get(url);
+
+    if (cached !== undefined) {
+      scope.manager.itemStart(url);
+      setTimeout(function () {
+        if (onLoad) onLoad(cached);
+        scope.manager.itemEnd(url);
+      }, 0);
+      return cached;
+    }
+
+    const image = document.createElementNS('http://www.w3.org/1999/xhtml', 'img');
+
+    function onImageLoad() {
+      image.removeEventListener('load', onImageLoad, false);
+      image.removeEventListener('error', onImageError, false);
+      Cache.add(url, this);
+      if (onLoad) onLoad(this);
+      scope.manager.itemEnd(url);
+    }
+
+    function onImageError(event) {
+      image.removeEventListener('load', onImageLoad, false);
+      image.removeEventListener('error', onImageError, false);
+      if (onError) onError(event);
+      scope.manager.itemError(url);
+      scope.manager.itemEnd(url);
+    }
+
+    image.addEventListener('load', onImageLoad, false);
+    image.addEventListener('error', onImageError, false);
+
+    if (url.substr(0, 5) !== 'data:') {
+      if (this.crossOrigin !== undefined) image.crossOrigin = this.crossOrigin;
+    }
+
+    scope.manager.itemStart(url);
+    image.src = url;
+    return image;
+  }
+
+}
+
+exports.ImageLoader = ImageLoader;
+
+class CubeTextureLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+  }
+
+  load(urls, onLoad, onProgress, onError) {
+    const texture = new CubeTexture();
+    const loader = new ImageLoader(this.manager);
+    loader.setCrossOrigin(this.crossOrigin);
+    loader.setPath(this.path);
+    let loaded = 0;
+
+    function loadTexture(i) {
+      loader.load(urls[i], function (image) {
+        texture.images[i] = image;
+        loaded++;
+
+        if (loaded === 6) {
+          texture.needsUpdate = true;
+          if (onLoad) onLoad(texture);
+        }
+      }, undefined, onError);
+    }
+
+    for (let i = 0; i < urls.length; ++i) {
+      loadTexture(i);
+    }
+
+    return texture;
+  }
+
+}
+/**
+ * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
+ *
+ * Sub classes have to implement the parse() method which will be used in load().
+ */
+
+
+exports.CubeTextureLoader = CubeTextureLoader;
+
+function DataTextureLoader(manager) {
+  Loader.call(this, manager);
+}
+
+DataTextureLoader.prototype = Object.assign(Object.create(Loader.prototype), {
+  constructor: DataTextureLoader,
+  load: function (url, onLoad, onProgress, onError) {
+    const scope = this;
+    const texture = new DataTexture();
+    const loader = new FileLoader(this.manager);
+    loader.setResponseType('arraybuffer');
+    loader.setRequestHeader(this.requestHeader);
+    loader.setPath(this.path);
+    loader.setWithCredentials(scope.withCredentials);
+    loader.load(url, function (buffer) {
+      const texData = scope.parse(buffer);
+      if (!texData) return;
+
+      if (texData.image !== undefined) {
+        texture.image = texData.image;
+      } else if (texData.data !== undefined) {
+        texture.image.width = texData.width;
+        texture.image.height = texData.height;
+        texture.image.data = texData.data;
+      }
+
+      texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping;
+      texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping;
+      texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter;
+      texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearFilter;
+      texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1;
+
+      if (texData.encoding !== undefined) {
+        texture.encoding = texData.encoding;
+      }
+
+      if (texData.flipY !== undefined) {
+        texture.flipY = texData.flipY;
+      }
+
+      if (texData.format !== undefined) {
+        texture.format = texData.format;
+      }
+
+      if (texData.type !== undefined) {
+        texture.type = texData.type;
+      }
+
+      if (texData.mipmaps !== undefined) {
+        texture.mipmaps = texData.mipmaps;
+        texture.minFilter = LinearMipmapLinearFilter; // presumably...
+      }
+
+      if (texData.mipmapCount === 1) {
+        texture.minFilter = LinearFilter;
+      }
+
+      texture.needsUpdate = true;
+      if (onLoad) onLoad(texture, texData);
+    }, onProgress, onError);
+    return texture;
+  }
+});
+
+function TextureLoader(manager) {
+  Loader.call(this, manager);
+}
+
+TextureLoader.prototype = Object.assign(Object.create(Loader.prototype), {
+  constructor: TextureLoader,
+  load: function (url, onLoad, onProgress, onError) {
+    const texture = new Texture();
+    const loader = new ImageLoader(this.manager);
+    loader.setCrossOrigin(this.crossOrigin);
+    loader.setPath(this.path);
+    loader.load(url, function (image) {
+      texture.image = image; // JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.
+
+      const isJPEG = url.search(/\.jpe?g($|\?)/i) > 0 || url.search(/^data\:image\/jpeg/) === 0;
+      texture.format = isJPEG ? RGBFormat : RGBAFormat;
+      texture.needsUpdate = true;
+
+      if (onLoad !== undefined) {
+        onLoad(texture);
+      }
+    }, onProgress, onError);
+    return texture;
+  }
+});
+/**
+ * Extensible curve object.
+ *
+ * Some common of curve methods:
+ * .getPoint( t, optionalTarget ), .getTangent( t, optionalTarget )
+ * .getPointAt( u, optionalTarget ), .getTangentAt( u, optionalTarget )
+ * .getPoints(), .getSpacedPoints()
+ * .getLength()
+ * .updateArcLengths()
+ *
+ * This following curves inherit from THREE.Curve:
+ *
+ * -- 2D curves --
+ * THREE.ArcCurve
+ * THREE.CubicBezierCurve
+ * THREE.EllipseCurve
+ * THREE.LineCurve
+ * THREE.QuadraticBezierCurve
+ * THREE.SplineCurve
+ *
+ * -- 3D curves --
+ * THREE.CatmullRomCurve3
+ * THREE.CubicBezierCurve3
+ * THREE.LineCurve3
+ * THREE.QuadraticBezierCurve3
+ *
+ * A series of curves can be represented as a THREE.CurvePath.
+ *
+ **/
+
+function Curve() {
+  this.type = 'Curve';
+  this.arcLengthDivisions = 200;
+}
+
+Object.assign(Curve.prototype, {
+  // Virtual base class method to overwrite and implement in subclasses
+  //	- t [0 .. 1]
+  getPoint: function ()
+  /* t, optionalTarget */
+  {
+    console.warn('THREE.Curve: .getPoint() not implemented.');
+    return null;
+  },
+  // Get point at relative position in curve according to arc length
+  // - u [0 .. 1]
+  getPointAt: function (u, optionalTarget) {
+    const t = this.getUtoTmapping(u);
+    return this.getPoint(t, optionalTarget);
+  },
+  // Get sequence of points using getPoint( t )
+  getPoints: function (divisions = 5) {
+    const points = [];
+
+    for (let d = 0; d <= divisions; d++) {
+      points.push(this.getPoint(d / divisions));
+    }
+
+    return points;
+  },
+  // Get sequence of points using getPointAt( u )
+  getSpacedPoints: function (divisions = 5) {
+    const points = [];
+
+    for (let d = 0; d <= divisions; d++) {
+      points.push(this.getPointAt(d / divisions));
+    }
+
+    return points;
+  },
+  // Get total curve arc length
+  getLength: function () {
+    const lengths = this.getLengths();
+    return lengths[lengths.length - 1];
+  },
+  // Get list of cumulative segment lengths
+  getLengths: function (divisions) {
+    if (divisions === undefined) divisions = this.arcLengthDivisions;
+
+    if (this.cacheArcLengths && this.cacheArcLengths.length === divisions + 1 && !this.needsUpdate) {
+      return this.cacheArcLengths;
+    }
+
+    this.needsUpdate = false;
+    const cache = [];
+    let current,
+        last = this.getPoint(0);
+    let sum = 0;
+    cache.push(0);
+
+    for (let p = 1; p <= divisions; p++) {
+      current = this.getPoint(p / divisions);
+      sum += current.distanceTo(last);
+      cache.push(sum);
+      last = current;
+    }
+
+    this.cacheArcLengths = cache;
+    return cache; // { sums: cache, sum: sum }; Sum is in the last element.
+  },
+  updateArcLengths: function () {
+    this.needsUpdate = true;
+    this.getLengths();
+  },
+  // Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant
+  getUtoTmapping: function (u, distance) {
+    const arcLengths = this.getLengths();
+    let i = 0;
+    const il = arcLengths.length;
+    let targetArcLength; // The targeted u distance value to get
+
+    if (distance) {
+      targetArcLength = distance;
+    } else {
+      targetArcLength = u * arcLengths[il - 1];
+    } // binary search for the index with largest value smaller than target u distance
+
+
+    let low = 0,
+        high = il - 1,
+        comparison;
+
+    while (low <= high) {
+      i = Math.floor(low + (high - low) / 2); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats
+
+      comparison = arcLengths[i] - targetArcLength;
+
+      if (comparison < 0) {
+        low = i + 1;
+      } else if (comparison > 0) {
+        high = i - 1;
+      } else {
+        high = i;
+        break; // DONE
+      }
+    }
+
+    i = high;
+
+    if (arcLengths[i] === targetArcLength) {
+      return i / (il - 1);
+    } // we could get finer grain at lengths, or use simple interpolation between two points
+
+
+    const lengthBefore = arcLengths[i];
+    const lengthAfter = arcLengths[i + 1];
+    const segmentLength = lengthAfter - lengthBefore; // determine where we are between the 'before' and 'after' points
+
+    const segmentFraction = (targetArcLength - lengthBefore) / segmentLength; // add that fractional amount to t
+
+    const t = (i + segmentFraction) / (il - 1);
+    return t;
+  },
+  // Returns a unit vector tangent at t
+  // In case any sub curve does not implement its tangent derivation,
+  // 2 points a small delta apart will be used to find its gradient
+  // which seems to give a reasonable approximation
+  getTangent: function (t, optionalTarget) {
+    const delta = 0.0001;
+    let t1 = t - delta;
+    let t2 = t + delta; // Capping in case of danger
+
+    if (t1 < 0) t1 = 0;
+    if (t2 > 1) t2 = 1;
+    const pt1 = this.getPoint(t1);
+    const pt2 = this.getPoint(t2);
+    const tangent = optionalTarget || (pt1.isVector2 ? new Vector2() : new Vector3());
+    tangent.copy(pt2).sub(pt1).normalize();
+    return tangent;
+  },
+  getTangentAt: function (u, optionalTarget) {
+    const t = this.getUtoTmapping(u);
+    return this.getTangent(t, optionalTarget);
+  },
+  computeFrenetFrames: function (segments, closed) {
+    // see http://www.cs.indiana.edu/pub/techreports/TR425.pdf
+    const normal = new Vector3();
+    const tangents = [];
+    const normals = [];
+    const binormals = [];
+    const vec = new Vector3();
+    const mat = new Matrix4(); // compute the tangent vectors for each segment on the curve
+
+    for (let i = 0; i <= segments; i++) {
+      const u = i / segments;
+      tangents[i] = this.getTangentAt(u, new Vector3());
+      tangents[i].normalize();
+    } // select an initial normal vector perpendicular to the first tangent vector,
+    // and in the direction of the minimum tangent xyz component
+
+
+    normals[0] = new Vector3();
+    binormals[0] = new Vector3();
+    let min = Number.MAX_VALUE;
+    const tx = Math.abs(tangents[0].x);
+    const ty = Math.abs(tangents[0].y);
+    const tz = Math.abs(tangents[0].z);
+
+    if (tx <= min) {
+      min = tx;
+      normal.set(1, 0, 0);
+    }
+
+    if (ty <= min) {
+      min = ty;
+      normal.set(0, 1, 0);
+    }
+
+    if (tz <= min) {
+      normal.set(0, 0, 1);
+    }
+
+    vec.crossVectors(tangents[0], normal).normalize();
+    normals[0].crossVectors(tangents[0], vec);
+    binormals[0].crossVectors(tangents[0], normals[0]); // compute the slowly-varying normal and binormal vectors for each segment on the curve
+
+    for (let i = 1; i <= segments; i++) {
+      normals[i] = normals[i - 1].clone();
+      binormals[i] = binormals[i - 1].clone();
+      vec.crossVectors(tangents[i - 1], tangents[i]);
+
+      if (vec.length() > Number.EPSILON) {
+        vec.normalize();
+        const theta = Math.acos(MathUtils.clamp(tangents[i - 1].dot(tangents[i]), -1, 1)); // clamp for floating pt errors
+
+        normals[i].applyMatrix4(mat.makeRotationAxis(vec, theta));
+      }
+
+      binormals[i].crossVectors(tangents[i], normals[i]);
+    } // if the curve is closed, postprocess the vectors so the first and last normal vectors are the same
+
+
+    if (closed === true) {
+      let theta = Math.acos(MathUtils.clamp(normals[0].dot(normals[segments]), -1, 1));
+      theta /= segments;
+
+      if (tangents[0].dot(vec.crossVectors(normals[0], normals[segments])) > 0) {
+        theta = -theta;
+      }
+
+      for (let i = 1; i <= segments; i++) {
+        // twist a little...
+        normals[i].applyMatrix4(mat.makeRotationAxis(tangents[i], theta * i));
+        binormals[i].crossVectors(tangents[i], normals[i]);
+      }
+    }
+
+    return {
+      tangents: tangents,
+      normals: normals,
+      binormals: binormals
+    };
+  },
+  clone: function () {
+    return new this.constructor().copy(this);
+  },
+  copy: function (source) {
+    this.arcLengthDivisions = source.arcLengthDivisions;
+    return this;
+  },
+  toJSON: function () {
+    const data = {
+      metadata: {
+        version: 4.5,
+        type: 'Curve',
+        generator: 'Curve.toJSON'
+      }
+    };
+    data.arcLengthDivisions = this.arcLengthDivisions;
+    data.type = this.type;
+    return data;
+  },
+  fromJSON: function (json) {
+    this.arcLengthDivisions = json.arcLengthDivisions;
+    return this;
+  }
+});
+
+class EllipseCurve extends Curve {
+  constructor(aX = 0, aY = 0, xRadius = 1, yRadius = 1, aStartAngle = 0, aEndAngle = Math.PI * 2, aClockwise = false, aRotation = 0) {
+    super();
+    this.type = 'EllipseCurve';
+    this.aX = aX;
+    this.aY = aY;
+    this.xRadius = xRadius;
+    this.yRadius = yRadius;
+    this.aStartAngle = aStartAngle;
+    this.aEndAngle = aEndAngle;
+    this.aClockwise = aClockwise;
+    this.aRotation = aRotation;
+  }
+
+  getPoint(t, optionalTarget) {
+    const point = optionalTarget || new Vector2();
+    const twoPi = Math.PI * 2;
+    let deltaAngle = this.aEndAngle - this.aStartAngle;
+    const samePoints = Math.abs(deltaAngle) < Number.EPSILON; // ensures that deltaAngle is 0 .. 2 PI
+
+    while (deltaAngle < 0) deltaAngle += twoPi;
+
+    while (deltaAngle > twoPi) deltaAngle -= twoPi;
+
+    if (deltaAngle < Number.EPSILON) {
+      if (samePoints) {
+        deltaAngle = 0;
+      } else {
+        deltaAngle = twoPi;
+      }
+    }
+
+    if (this.aClockwise === true && !samePoints) {
+      if (deltaAngle === twoPi) {
+        deltaAngle = -twoPi;
+      } else {
+        deltaAngle = deltaAngle - twoPi;
+      }
+    }
+
+    const angle = this.aStartAngle + t * deltaAngle;
+    let x = this.aX + this.xRadius * Math.cos(angle);
+    let y = this.aY + this.yRadius * Math.sin(angle);
+
+    if (this.aRotation !== 0) {
+      const cos = Math.cos(this.aRotation);
+      const sin = Math.sin(this.aRotation);
+      const tx = x - this.aX;
+      const ty = y - this.aY; // Rotate the point about the center of the ellipse.
+
+      x = tx * cos - ty * sin + this.aX;
+      y = tx * sin + ty * cos + this.aY;
+    }
+
+    return point.set(x, y);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.aX = source.aX;
+    this.aY = source.aY;
+    this.xRadius = source.xRadius;
+    this.yRadius = source.yRadius;
+    this.aStartAngle = source.aStartAngle;
+    this.aEndAngle = source.aEndAngle;
+    this.aClockwise = source.aClockwise;
+    this.aRotation = source.aRotation;
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.aX = this.aX;
+    data.aY = this.aY;
+    data.xRadius = this.xRadius;
+    data.yRadius = this.yRadius;
+    data.aStartAngle = this.aStartAngle;
+    data.aEndAngle = this.aEndAngle;
+    data.aClockwise = this.aClockwise;
+    data.aRotation = this.aRotation;
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.aX = json.aX;
+    this.aY = json.aY;
+    this.xRadius = json.xRadius;
+    this.yRadius = json.yRadius;
+    this.aStartAngle = json.aStartAngle;
+    this.aEndAngle = json.aEndAngle;
+    this.aClockwise = json.aClockwise;
+    this.aRotation = json.aRotation;
+    return this;
+  }
+
+}
+
+exports.EllipseCurve = EllipseCurve;
+EllipseCurve.prototype.isEllipseCurve = true;
+
+class ArcCurve extends EllipseCurve {
+  constructor(aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
+    super(aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise);
+    this.type = 'ArcCurve';
+  }
+
+}
+
+exports.ArcCurve = ArcCurve;
+ArcCurve.prototype.isArcCurve = true;
+/**
+ * Centripetal CatmullRom Curve - which is useful for avoiding
+ * cusps and self-intersections in non-uniform catmull rom curves.
+ * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
+ *
+ * curve.type accepts centripetal(default), chordal and catmullrom
+ * curve.tension is used for catmullrom which defaults to 0.5
+ */
+
+/*
+Based on an optimized c++ solution in
+ - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
+ - http://ideone.com/NoEbVM
+
+This CubicPoly class could be used for reusing some variables and calculations,
+but for three.js curve use, it could be possible inlined and flatten into a single function call
+which can be placed in CurveUtils.
+*/
+
+function CubicPoly() {
+  let c0 = 0,
+      c1 = 0,
+      c2 = 0,
+      c3 = 0;
+  /*
+   * Compute coefficients for a cubic polynomial
+   *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
+   * such that
+   *   p(0) = x0, p(1) = x1
+   *  and
+   *   p'(0) = t0, p'(1) = t1.
+   */
+
+  function init(x0, x1, t0, t1) {
+    c0 = x0;
+    c1 = t0;
+    c2 = -3 * x0 + 3 * x1 - 2 * t0 - t1;
+    c3 = 2 * x0 - 2 * x1 + t0 + t1;
+  }
+
+  return {
+    initCatmullRom: function (x0, x1, x2, x3, tension) {
+      init(x1, x2, tension * (x2 - x0), tension * (x3 - x1));
+    },
+    initNonuniformCatmullRom: function (x0, x1, x2, x3, dt0, dt1, dt2) {
+      // compute tangents when parameterized in [t1,t2]
+      let t1 = (x1 - x0) / dt0 - (x2 - x0) / (dt0 + dt1) + (x2 - x1) / dt1;
+      let t2 = (x2 - x1) / dt1 - (x3 - x1) / (dt1 + dt2) + (x3 - x2) / dt2; // rescale tangents for parametrization in [0,1]
+
+      t1 *= dt1;
+      t2 *= dt1;
+      init(x1, x2, t1, t2);
+    },
+    calc: function (t) {
+      const t2 = t * t;
+      const t3 = t2 * t;
+      return c0 + c1 * t + c2 * t2 + c3 * t3;
+    }
+  };
+} //
+
+
+const tmp = new Vector3();
+const px = new CubicPoly(),
+      py = new CubicPoly(),
+      pz = new CubicPoly();
+
+class CatmullRomCurve3 extends Curve {
+  constructor(points = [], closed = false, curveType = 'centripetal', tension = 0.5) {
+    super();
+    this.type = 'CatmullRomCurve3';
+    this.points = points;
+    this.closed = closed;
+    this.curveType = curveType;
+    this.tension = tension;
+  }
+
+  getPoint(t, optionalTarget = new Vector3()) {
+    const point = optionalTarget;
+    const points = this.points;
+    const l = points.length;
+    const p = (l - (this.closed ? 0 : 1)) * t;
+    let intPoint = Math.floor(p);
+    let weight = p - intPoint;
+
+    if (this.closed) {
+      intPoint += intPoint > 0 ? 0 : (Math.floor(Math.abs(intPoint) / l) + 1) * l;
+    } else if (weight === 0 && intPoint === l - 1) {
+      intPoint = l - 2;
+      weight = 1;
+    }
+
+    let p0, p3; // 4 points (p1 & p2 defined below)
+
+    if (this.closed || intPoint > 0) {
+      p0 = points[(intPoint - 1) % l];
+    } else {
+      // extrapolate first point
+      tmp.subVectors(points[0], points[1]).add(points[0]);
+      p0 = tmp;
+    }
+
+    const p1 = points[intPoint % l];
+    const p2 = points[(intPoint + 1) % l];
+
+    if (this.closed || intPoint + 2 < l) {
+      p3 = points[(intPoint + 2) % l];
+    } else {
+      // extrapolate last point
+      tmp.subVectors(points[l - 1], points[l - 2]).add(points[l - 1]);
+      p3 = tmp;
+    }
+
+    if (this.curveType === 'centripetal' || this.curveType === 'chordal') {
+      // init Centripetal / Chordal Catmull-Rom
+      const pow = this.curveType === 'chordal' ? 0.5 : 0.25;
+      let dt0 = Math.pow(p0.distanceToSquared(p1), pow);
+      let dt1 = Math.pow(p1.distanceToSquared(p2), pow);
+      let dt2 = Math.pow(p2.distanceToSquared(p3), pow); // safety check for repeated points
+
+      if (dt1 < 1e-4) dt1 = 1.0;
+      if (dt0 < 1e-4) dt0 = dt1;
+      if (dt2 < 1e-4) dt2 = dt1;
+      px.initNonuniformCatmullRom(p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2);
+      py.initNonuniformCatmullRom(p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2);
+      pz.initNonuniformCatmullRom(p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2);
+    } else if (this.curveType === 'catmullrom') {
+      px.initCatmullRom(p0.x, p1.x, p2.x, p3.x, this.tension);
+      py.initCatmullRom(p0.y, p1.y, p2.y, p3.y, this.tension);
+      pz.initCatmullRom(p0.z, p1.z, p2.z, p3.z, this.tension);
+    }
+
+    point.set(px.calc(weight), py.calc(weight), pz.calc(weight));
+    return point;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.points = [];
+
+    for (let i = 0, l = source.points.length; i < l; i++) {
+      const point = source.points[i];
+      this.points.push(point.clone());
+    }
+
+    this.closed = source.closed;
+    this.curveType = source.curveType;
+    this.tension = source.tension;
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.points = [];
+
+    for (let i = 0, l = this.points.length; i < l; i++) {
+      const point = this.points[i];
+      data.points.push(point.toArray());
+    }
+
+    data.closed = this.closed;
+    data.curveType = this.curveType;
+    data.tension = this.tension;
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.points = [];
+
+    for (let i = 0, l = json.points.length; i < l; i++) {
+      const point = json.points[i];
+      this.points.push(new Vector3().fromArray(point));
+    }
+
+    this.closed = json.closed;
+    this.curveType = json.curveType;
+    this.tension = json.tension;
+    return this;
+  }
+
+}
+
+exports.CatmullRomCurve3 = CatmullRomCurve3;
+CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;
+/**
+ * Bezier Curves formulas obtained from
+ * http://en.wikipedia.org/wiki/Bézier_curve
+ */
+
+function CatmullRom(t, p0, p1, p2, p3) {
+  const v0 = (p2 - p0) * 0.5;
+  const v1 = (p3 - p1) * 0.5;
+  const t2 = t * t;
+  const t3 = t * t2;
+  return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (-3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
+} //
+
+
+function QuadraticBezierP0(t, p) {
+  const k = 1 - t;
+  return k * k * p;
+}
+
+function QuadraticBezierP1(t, p) {
+  return 2 * (1 - t) * t * p;
+}
+
+function QuadraticBezierP2(t, p) {
+  return t * t * p;
+}
+
+function QuadraticBezier(t, p0, p1, p2) {
+  return QuadraticBezierP0(t, p0) + QuadraticBezierP1(t, p1) + QuadraticBezierP2(t, p2);
+} //
+
+
+function CubicBezierP0(t, p) {
+  const k = 1 - t;
+  return k * k * k * p;
+}
+
+function CubicBezierP1(t, p) {
+  const k = 1 - t;
+  return 3 * k * k * t * p;
+}
+
+function CubicBezierP2(t, p) {
+  return 3 * (1 - t) * t * t * p;
+}
+
+function CubicBezierP3(t, p) {
+  return t * t * t * p;
+}
+
+function CubicBezier(t, p0, p1, p2, p3) {
+  return CubicBezierP0(t, p0) + CubicBezierP1(t, p1) + CubicBezierP2(t, p2) + CubicBezierP3(t, p3);
+}
+
+class CubicBezierCurve extends Curve {
+  constructor(v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2(), v3 = new Vector2()) {
+    super();
+    this.type = 'CubicBezierCurve';
+    this.v0 = v0;
+    this.v1 = v1;
+    this.v2 = v2;
+    this.v3 = v3;
+  }
+
+  getPoint(t, optionalTarget = new Vector2()) {
+    const point = optionalTarget;
+    const v0 = this.v0,
+          v1 = this.v1,
+          v2 = this.v2,
+          v3 = this.v3;
+    point.set(CubicBezier(t, v0.x, v1.x, v2.x, v3.x), CubicBezier(t, v0.y, v1.y, v2.y, v3.y));
+    return point;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.v0.copy(source.v0);
+    this.v1.copy(source.v1);
+    this.v2.copy(source.v2);
+    this.v3.copy(source.v3);
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.v0 = this.v0.toArray();
+    data.v1 = this.v1.toArray();
+    data.v2 = this.v2.toArray();
+    data.v3 = this.v3.toArray();
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.v0.fromArray(json.v0);
+    this.v1.fromArray(json.v1);
+    this.v2.fromArray(json.v2);
+    this.v3.fromArray(json.v3);
+    return this;
+  }
+
+}
+
+exports.CubicBezierCurve = CubicBezierCurve;
+CubicBezierCurve.prototype.isCubicBezierCurve = true;
+
+class CubicBezierCurve3 extends Curve {
+  constructor(v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3(), v3 = new Vector3()) {
+    super();
+    this.type = 'CubicBezierCurve3';
+    this.v0 = v0;
+    this.v1 = v1;
+    this.v2 = v2;
+    this.v3 = v3;
+  }
+
+  getPoint(t, optionalTarget = new Vector3()) {
+    const point = optionalTarget;
+    const v0 = this.v0,
+          v1 = this.v1,
+          v2 = this.v2,
+          v3 = this.v3;
+    point.set(CubicBezier(t, v0.x, v1.x, v2.x, v3.x), CubicBezier(t, v0.y, v1.y, v2.y, v3.y), CubicBezier(t, v0.z, v1.z, v2.z, v3.z));
+    return point;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.v0.copy(source.v0);
+    this.v1.copy(source.v1);
+    this.v2.copy(source.v2);
+    this.v3.copy(source.v3);
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.v0 = this.v0.toArray();
+    data.v1 = this.v1.toArray();
+    data.v2 = this.v2.toArray();
+    data.v3 = this.v3.toArray();
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.v0.fromArray(json.v0);
+    this.v1.fromArray(json.v1);
+    this.v2.fromArray(json.v2);
+    this.v3.fromArray(json.v3);
+    return this;
+  }
+
+}
+
+exports.CubicBezierCurve3 = CubicBezierCurve3;
+CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;
+
+class LineCurve extends Curve {
+  constructor(v1 = new Vector2(), v2 = new Vector2()) {
+    super();
+    this.type = 'LineCurve';
+    this.v1 = v1;
+    this.v2 = v2;
+  }
+
+  getPoint(t, optionalTarget = new Vector2()) {
+    const point = optionalTarget;
+
+    if (t === 1) {
+      point.copy(this.v2);
+    } else {
+      point.copy(this.v2).sub(this.v1);
+      point.multiplyScalar(t).add(this.v1);
+    }
+
+    return point;
+  } // Line curve is linear, so we can overwrite default getPointAt
+
+
+  getPointAt(u, optionalTarget) {
+    return this.getPoint(u, optionalTarget);
+  }
+
+  getTangent(t, optionalTarget) {
+    const tangent = optionalTarget || new Vector2();
+    tangent.copy(this.v2).sub(this.v1).normalize();
+    return tangent;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.v1.copy(source.v1);
+    this.v2.copy(source.v2);
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.v1 = this.v1.toArray();
+    data.v2 = this.v2.toArray();
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.v1.fromArray(json.v1);
+    this.v2.fromArray(json.v2);
+    return this;
+  }
+
+}
+
+exports.LineCurve = LineCurve;
+LineCurve.prototype.isLineCurve = true;
+
+class LineCurve3 extends Curve {
+  constructor(v1 = new Vector3(), v2 = new Vector3()) {
+    super();
+    this.type = 'LineCurve3';
+    this.isLineCurve3 = true;
+    this.v1 = v1;
+    this.v2 = v2;
+  }
+
+  getPoint(t, optionalTarget = new Vector3()) {
+    const point = optionalTarget;
+
+    if (t === 1) {
+      point.copy(this.v2);
+    } else {
+      point.copy(this.v2).sub(this.v1);
+      point.multiplyScalar(t).add(this.v1);
+    }
+
+    return point;
+  } // Line curve is linear, so we can overwrite default getPointAt
+
+
+  getPointAt(u, optionalTarget) {
+    return this.getPoint(u, optionalTarget);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.v1.copy(source.v1);
+    this.v2.copy(source.v2);
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.v1 = this.v1.toArray();
+    data.v2 = this.v2.toArray();
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.v1.fromArray(json.v1);
+    this.v2.fromArray(json.v2);
+    return this;
+  }
+
+}
+
+exports.LineCurve3 = LineCurve3;
+
+class QuadraticBezierCurve extends Curve {
+  constructor(v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2()) {
+    super();
+    this.type = 'QuadraticBezierCurve';
+    this.v0 = v0;
+    this.v1 = v1;
+    this.v2 = v2;
+  }
+
+  getPoint(t, optionalTarget = new Vector2()) {
+    const point = optionalTarget;
+    const v0 = this.v0,
+          v1 = this.v1,
+          v2 = this.v2;
+    point.set(QuadraticBezier(t, v0.x, v1.x, v2.x), QuadraticBezier(t, v0.y, v1.y, v2.y));
+    return point;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.v0.copy(source.v0);
+    this.v1.copy(source.v1);
+    this.v2.copy(source.v2);
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.v0 = this.v0.toArray();
+    data.v1 = this.v1.toArray();
+    data.v2 = this.v2.toArray();
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.v0.fromArray(json.v0);
+    this.v1.fromArray(json.v1);
+    this.v2.fromArray(json.v2);
+    return this;
+  }
+
+}
+
+exports.QuadraticBezierCurve = QuadraticBezierCurve;
+QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;
+
+class QuadraticBezierCurve3 extends Curve {
+  constructor(v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3()) {
+    super();
+    this.type = 'QuadraticBezierCurve3';
+    this.v0 = v0;
+    this.v1 = v1;
+    this.v2 = v2;
+  }
+
+  getPoint(t, optionalTarget = new Vector3()) {
+    const point = optionalTarget;
+    const v0 = this.v0,
+          v1 = this.v1,
+          v2 = this.v2;
+    point.set(QuadraticBezier(t, v0.x, v1.x, v2.x), QuadraticBezier(t, v0.y, v1.y, v2.y), QuadraticBezier(t, v0.z, v1.z, v2.z));
+    return point;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.v0.copy(source.v0);
+    this.v1.copy(source.v1);
+    this.v2.copy(source.v2);
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.v0 = this.v0.toArray();
+    data.v1 = this.v1.toArray();
+    data.v2 = this.v2.toArray();
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.v0.fromArray(json.v0);
+    this.v1.fromArray(json.v1);
+    this.v2.fromArray(json.v2);
+    return this;
+  }
+
+}
+
+exports.QuadraticBezierCurve3 = QuadraticBezierCurve3;
+QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;
+
+class SplineCurve extends Curve {
+  constructor(points = []) {
+    super();
+    this.type = 'SplineCurve';
+    this.points = points;
+  }
+
+  getPoint(t, optionalTarget = new Vector2()) {
+    const point = optionalTarget;
+    const points = this.points;
+    const p = (points.length - 1) * t;
+    const intPoint = Math.floor(p);
+    const weight = p - intPoint;
+    const p0 = points[intPoint === 0 ? intPoint : intPoint - 1];
+    const p1 = points[intPoint];
+    const p2 = points[intPoint > points.length - 2 ? points.length - 1 : intPoint + 1];
+    const p3 = points[intPoint > points.length - 3 ? points.length - 1 : intPoint + 2];
+    point.set(CatmullRom(weight, p0.x, p1.x, p2.x, p3.x), CatmullRom(weight, p0.y, p1.y, p2.y, p3.y));
+    return point;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.points = [];
+
+    for (let i = 0, l = source.points.length; i < l; i++) {
+      const point = source.points[i];
+      this.points.push(point.clone());
+    }
+
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.points = [];
+
+    for (let i = 0, l = this.points.length; i < l; i++) {
+      const point = this.points[i];
+      data.points.push(point.toArray());
+    }
+
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.points = [];
+
+    for (let i = 0, l = json.points.length; i < l; i++) {
+      const point = json.points[i];
+      this.points.push(new Vector2().fromArray(point));
+    }
+
+    return this;
+  }
+
+}
+
+exports.SplineCurve = SplineCurve;
+SplineCurve.prototype.isSplineCurve = true;
+var Curves =
+/*#__PURE__*/
+Object.freeze({
+  __proto__: null,
+  ArcCurve: ArcCurve,
+  CatmullRomCurve3: CatmullRomCurve3,
+  CubicBezierCurve: CubicBezierCurve,
+  CubicBezierCurve3: CubicBezierCurve3,
+  EllipseCurve: EllipseCurve,
+  LineCurve: LineCurve,
+  LineCurve3: LineCurve3,
+  QuadraticBezierCurve: QuadraticBezierCurve,
+  QuadraticBezierCurve3: QuadraticBezierCurve3,
+  SplineCurve: SplineCurve
+});
+/**************************************************************
+ *	Curved Path - a curve path is simply a array of connected
+ *  curves, but retains the api of a curve
+ **************************************************************/
+
+class CurvePath extends Curve {
+  constructor() {
+    super();
+    this.type = 'CurvePath';
+    this.curves = [];
+    this.autoClose = false; // Automatically closes the path
+  }
+
+  add(curve) {
+    this.curves.push(curve);
+  }
+
+  closePath() {
+    // Add a line curve if start and end of lines are not connected
+    const startPoint = this.curves[0].getPoint(0);
+    const endPoint = this.curves[this.curves.length - 1].getPoint(1);
+
+    if (!startPoint.equals(endPoint)) {
+      this.curves.push(new LineCurve(endPoint, startPoint));
+    }
+  } // To get accurate point with reference to
+  // entire path distance at time t,
+  // following has to be done:
+  // 1. Length of each sub path have to be known
+  // 2. Locate and identify type of curve
+  // 3. Get t for the curve
+  // 4. Return curve.getPointAt(t')
+
+
+  getPoint(t) {
+    const d = t * this.getLength();
+    const curveLengths = this.getCurveLengths();
+    let i = 0; // To think about boundaries points.
+
+    while (i < curveLengths.length) {
+      if (curveLengths[i] >= d) {
+        const diff = curveLengths[i] - d;
+        const curve = this.curves[i];
+        const segmentLength = curve.getLength();
+        const u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;
+        return curve.getPointAt(u);
+      }
+
+      i++;
+    }
+
+    return null; // loop where sum != 0, sum > d , sum+1 <d
+  } // We cannot use the default THREE.Curve getPoint() with getLength() because in
+  // THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
+  // getPoint() depends on getLength
+
+
+  getLength() {
+    const lens = this.getCurveLengths();
+    return lens[lens.length - 1];
+  } // cacheLengths must be recalculated.
+
+
+  updateArcLengths() {
+    this.needsUpdate = true;
+    this.cacheLengths = null;
+    this.getCurveLengths();
+  } // Compute lengths and cache them
+  // We cannot overwrite getLengths() because UtoT mapping uses it.
+
+
+  getCurveLengths() {
+    // We use cache values if curves and cache array are same length
+    if (this.cacheLengths && this.cacheLengths.length === this.curves.length) {
+      return this.cacheLengths;
+    } // Get length of sub-curve
+    // Push sums into cached array
+
+
+    const lengths = [];
+    let sums = 0;
+
+    for (let i = 0, l = this.curves.length; i < l; i++) {
+      sums += this.curves[i].getLength();
+      lengths.push(sums);
+    }
+
+    this.cacheLengths = lengths;
+    return lengths;
+  }
+
+  getSpacedPoints(divisions = 40) {
+    const points = [];
+
+    for (let i = 0; i <= divisions; i++) {
+      points.push(this.getPoint(i / divisions));
+    }
+
+    if (this.autoClose) {
+      points.push(points[0]);
+    }
+
+    return points;
+  }
+
+  getPoints(divisions = 12) {
+    const points = [];
+    let last;
+
+    for (let i = 0, curves = this.curves; i < curves.length; i++) {
+      const curve = curves[i];
+      const resolution = curve && curve.isEllipseCurve ? divisions * 2 : curve && (curve.isLineCurve || curve.isLineCurve3) ? 1 : curve && curve.isSplineCurve ? divisions * curve.points.length : divisions;
+      const pts = curve.getPoints(resolution);
+
+      for (let j = 0; j < pts.length; j++) {
+        const point = pts[j];
+        if (last && last.equals(point)) continue; // ensures no consecutive points are duplicates
+
+        points.push(point);
+        last = point;
+      }
+    }
+
+    if (this.autoClose && points.length > 1 && !points[points.length - 1].equals(points[0])) {
+      points.push(points[0]);
+    }
+
+    return points;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.curves = [];
+
+    for (let i = 0, l = source.curves.length; i < l; i++) {
+      const curve = source.curves[i];
+      this.curves.push(curve.clone());
+    }
+
+    this.autoClose = source.autoClose;
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.autoClose = this.autoClose;
+    data.curves = [];
+
+    for (let i = 0, l = this.curves.length; i < l; i++) {
+      const curve = this.curves[i];
+      data.curves.push(curve.toJSON());
+    }
+
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.autoClose = json.autoClose;
+    this.curves = [];
+
+    for (let i = 0, l = json.curves.length; i < l; i++) {
+      const curve = json.curves[i];
+      this.curves.push(new Curves[curve.type]().fromJSON(curve));
+    }
+
+    return this;
+  }
+
+}
+
+exports.CurvePath = CurvePath;
+
+class Path extends CurvePath {
+  constructor(points) {
+    super();
+    this.type = 'Path';
+    this.currentPoint = new Vector2();
+
+    if (points) {
+      this.setFromPoints(points);
+    }
+  }
+
+  setFromPoints(points) {
+    this.moveTo(points[0].x, points[0].y);
+
+    for (let i = 1, l = points.length; i < l; i++) {
+      this.lineTo(points[i].x, points[i].y);
+    }
+
+    return this;
+  }
+
+  moveTo(x, y) {
+    this.currentPoint.set(x, y); // TODO consider referencing vectors instead of copying?
+
+    return this;
+  }
+
+  lineTo(x, y) {
+    const curve = new LineCurve(this.currentPoint.clone(), new Vector2(x, y));
+    this.curves.push(curve);
+    this.currentPoint.set(x, y);
+    return this;
+  }
+
+  quadraticCurveTo(aCPx, aCPy, aX, aY) {
+    const curve = new QuadraticBezierCurve(this.currentPoint.clone(), new Vector2(aCPx, aCPy), new Vector2(aX, aY));
+    this.curves.push(curve);
+    this.currentPoint.set(aX, aY);
+    return this;
+  }
+
+  bezierCurveTo(aCP1x, aCP1y, aCP2x, aCP2y, aX, aY) {
+    const curve = new CubicBezierCurve(this.currentPoint.clone(), new Vector2(aCP1x, aCP1y), new Vector2(aCP2x, aCP2y), new Vector2(aX, aY));
+    this.curves.push(curve);
+    this.currentPoint.set(aX, aY);
+    return this;
+  }
+
+  splineThru(pts
+  /*Array of Vector*/
+  ) {
+    const npts = [this.currentPoint.clone()].concat(pts);
+    const curve = new SplineCurve(npts);
+    this.curves.push(curve);
+    this.currentPoint.copy(pts[pts.length - 1]);
+    return this;
+  }
+
+  arc(aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
+    const x0 = this.currentPoint.x;
+    const y0 = this.currentPoint.y;
+    this.absarc(aX + x0, aY + y0, aRadius, aStartAngle, aEndAngle, aClockwise);
+    return this;
+  }
+
+  absarc(aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
+    this.absellipse(aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise);
+    return this;
+  }
+
+  ellipse(aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation) {
+    const x0 = this.currentPoint.x;
+    const y0 = this.currentPoint.y;
+    this.absellipse(aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation);
+    return this;
+  }
+
+  absellipse(aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation) {
+    const curve = new EllipseCurve(aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation);
+
+    if (this.curves.length > 0) {
+      // if a previous curve is present, attempt to join
+      const firstPoint = curve.getPoint(0);
+
+      if (!firstPoint.equals(this.currentPoint)) {
+        this.lineTo(firstPoint.x, firstPoint.y);
+      }
+    }
+
+    this.curves.push(curve);
+    const lastPoint = curve.getPoint(1);
+    this.currentPoint.copy(lastPoint);
+    return this;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.currentPoint.copy(source.currentPoint);
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.currentPoint = this.currentPoint.toArray();
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.currentPoint.fromArray(json.currentPoint);
+    return this;
+  }
+
+}
+
+exports.Path = Path;
+
+class Shape extends Path {
+  constructor(points) {
+    super(points);
+    this.uuid = MathUtils.generateUUID();
+    this.type = 'Shape';
+    this.holes = [];
+  }
+
+  getPointsHoles(divisions) {
+    const holesPts = [];
+
+    for (let i = 0, l = this.holes.length; i < l; i++) {
+      holesPts[i] = this.holes[i].getPoints(divisions);
+    }
+
+    return holesPts;
+  } // get points of shape and holes (keypoints based on segments parameter)
+
+
+  extractPoints(divisions) {
+    return {
+      shape: this.getPoints(divisions),
+      holes: this.getPointsHoles(divisions)
+    };
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.holes = [];
+
+    for (let i = 0, l = source.holes.length; i < l; i++) {
+      const hole = source.holes[i];
+      this.holes.push(hole.clone());
+    }
+
+    return this;
+  }
+
+  toJSON() {
+    const data = super.toJSON();
+    data.uuid = this.uuid;
+    data.holes = [];
+
+    for (let i = 0, l = this.holes.length; i < l; i++) {
+      const hole = this.holes[i];
+      data.holes.push(hole.toJSON());
+    }
+
+    return data;
+  }
+
+  fromJSON(json) {
+    super.fromJSON(json);
+    this.uuid = json.uuid;
+    this.holes = [];
+
+    for (let i = 0, l = json.holes.length; i < l; i++) {
+      const hole = json.holes[i];
+      this.holes.push(new Path().fromJSON(hole));
+    }
+
+    return this;
+  }
+
+}
+
+exports.Shape = Shape;
+
+class Light extends Object3D {
+  constructor(color, intensity = 1) {
+    super();
+    this.type = 'Light';
+    this.color = new Color(color);
+    this.intensity = intensity;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.color.copy(source.color);
+    this.intensity = source.intensity;
+    return this;
+  }
+
+  toJSON(meta) {
+    const data = super.toJSON(meta);
+    data.object.color = this.color.getHex();
+    data.object.intensity = this.intensity;
+    if (this.groundColor !== undefined) data.object.groundColor = this.groundColor.getHex();
+    if (this.distance !== undefined) data.object.distance = this.distance;
+    if (this.angle !== undefined) data.object.angle = this.angle;
+    if (this.decay !== undefined) data.object.decay = this.decay;
+    if (this.penumbra !== undefined) data.object.penumbra = this.penumbra;
+    if (this.shadow !== undefined) data.object.shadow = this.shadow.toJSON();
+    return data;
+  }
+
+}
+
+exports.Light = Light;
+Light.prototype.isLight = true;
+
+class HemisphereLight extends Light {
+  constructor(skyColor, groundColor, intensity) {
+    super(skyColor, intensity);
+    this.type = 'HemisphereLight';
+    this.position.copy(Object3D.DefaultUp);
+    this.updateMatrix();
+    this.groundColor = new Color(groundColor);
+  }
+
+  copy(source) {
+    Light.prototype.copy.call(this, source);
+    this.groundColor.copy(source.groundColor);
+    return this;
+  }
+
+}
+
+exports.HemisphereLight = HemisphereLight;
+HemisphereLight.prototype.isHemisphereLight = true;
+
+const _projScreenMatrix =
+/*@__PURE__*/
+new Matrix4();
+
+const _lightPositionWorld =
+/*@__PURE__*/
+new Vector3();
+
+const _lookTarget =
+/*@__PURE__*/
+new Vector3();
+
+class LightShadow {
+  constructor(camera) {
+    this.camera = camera;
+    this.bias = 0;
+    this.normalBias = 0;
+    this.radius = 1;
+    this.mapSize = new Vector2(512, 512);
+    this.map = null;
+    this.mapPass = null;
+    this.matrix = new Matrix4();
+    this.autoUpdate = true;
+    this.needsUpdate = false;
+    this._frustum = new Frustum();
+    this._frameExtents = new Vector2(1, 1);
+    this._viewportCount = 1;
+    this._viewports = [new Vector4(0, 0, 1, 1)];
+  }
+
+  getViewportCount() {
+    return this._viewportCount;
+  }
+
+  getFrustum() {
+    return this._frustum;
+  }
+
+  updateMatrices(light) {
+    const shadowCamera = this.camera;
+    const shadowMatrix = this.matrix;
+
+    _lightPositionWorld.setFromMatrixPosition(light.matrixWorld);
+
+    shadowCamera.position.copy(_lightPositionWorld);
+
+    _lookTarget.setFromMatrixPosition(light.target.matrixWorld);
+
+    shadowCamera.lookAt(_lookTarget);
+    shadowCamera.updateMatrixWorld();
+
+    _projScreenMatrix.multiplyMatrices(shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse);
+
+    this._frustum.setFromProjectionMatrix(_projScreenMatrix);
+
+    shadowMatrix.set(0.5, 0.0, 0.0, 0.5, 0.0, 0.5, 0.0, 0.5, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 1.0);
+    shadowMatrix.multiply(shadowCamera.projectionMatrix);
+    shadowMatrix.multiply(shadowCamera.matrixWorldInverse);
+  }
+
+  getViewport(viewportIndex) {
+    return this._viewports[viewportIndex];
+  }
+
+  getFrameExtents() {
+    return this._frameExtents;
+  }
+
+  copy(source) {
+    this.camera = source.camera.clone();
+    this.bias = source.bias;
+    this.radius = source.radius;
+    this.mapSize.copy(source.mapSize);
+    return this;
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+  toJSON() {
+    const object = {};
+    if (this.bias !== 0) object.bias = this.bias;
+    if (this.normalBias !== 0) object.normalBias = this.normalBias;
+    if (this.radius !== 1) object.radius = this.radius;
+    if (this.mapSize.x !== 512 || this.mapSize.y !== 512) object.mapSize = this.mapSize.toArray();
+    object.camera = this.camera.toJSON(false).object;
+    delete object.camera.matrix;
+    return object;
+  }
+
+}
+
+class SpotLightShadow extends LightShadow {
+  constructor() {
+    super(new PerspectiveCamera(50, 1, 0.5, 500));
+    this.focus = 1;
+  }
+
+  updateMatrices(light) {
+    const camera = this.camera;
+    const fov = MathUtils.RAD2DEG * 2 * light.angle * this.focus;
+    const aspect = this.mapSize.width / this.mapSize.height;
+    const far = light.distance || camera.far;
+
+    if (fov !== camera.fov || aspect !== camera.aspect || far !== camera.far) {
+      camera.fov = fov;
+      camera.aspect = aspect;
+      camera.far = far;
+      camera.updateProjectionMatrix();
+    }
+
+    super.updateMatrices(light);
+  }
+
+}
+
+SpotLightShadow.prototype.isSpotLightShadow = true;
+
+class SpotLight extends Light {
+  constructor(color, intensity, distance = 0, angle = Math.PI / 3, penumbra = 0, decay = 1) {
+    super(color, intensity);
+    this.type = 'SpotLight';
+    this.position.copy(Object3D.DefaultUp);
+    this.updateMatrix();
+    this.target = new Object3D();
+    this.distance = distance;
+    this.angle = angle;
+    this.penumbra = penumbra;
+    this.decay = decay; // for physically correct lights, should be 2.
+
+    this.shadow = new SpotLightShadow();
+  }
+
+  get power() {
+    // intensity = power per solid angle.
+    // ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
+    return this.intensity * Math.PI;
+  }
+
+  set power(power) {
+    // intensity = power per solid angle.
+    // ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
+    this.intensity = power / Math.PI;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.distance = source.distance;
+    this.angle = source.angle;
+    this.penumbra = source.penumbra;
+    this.decay = source.decay;
+    this.target = source.target.clone();
+    this.shadow = source.shadow.clone();
+    return this;
+  }
+
+}
+
+exports.SpotLight = SpotLight;
+SpotLight.prototype.isSpotLight = true;
+
+const _projScreenMatrix$1 =
+/*@__PURE__*/
+new Matrix4();
+
+const _lightPositionWorld$1 =
+/*@__PURE__*/
+new Vector3();
+
+const _lookTarget$1 =
+/*@__PURE__*/
+new Vector3();
+
+class PointLightShadow extends LightShadow {
+  constructor() {
+    super(new PerspectiveCamera(90, 1, 0.5, 500));
+    this._frameExtents = new Vector2(4, 2);
+    this._viewportCount = 6;
+    this._viewports = [// These viewports map a cube-map onto a 2D texture with the
+    // following orientation:
+    //
+    //  xzXZ
+    //   y Y
+    //
+    // X - Positive x direction
+    // x - Negative x direction
+    // Y - Positive y direction
+    // y - Negative y direction
+    // Z - Positive z direction
+    // z - Negative z direction
+    // positive X
+    new Vector4(2, 1, 1, 1), // negative X
+    new Vector4(0, 1, 1, 1), // positive Z
+    new Vector4(3, 1, 1, 1), // negative Z
+    new Vector4(1, 1, 1, 1), // positive Y
+    new Vector4(3, 0, 1, 1), // negative Y
+    new Vector4(1, 0, 1, 1)];
+    this._cubeDirections = [new Vector3(1, 0, 0), new Vector3(-1, 0, 0), new Vector3(0, 0, 1), new Vector3(0, 0, -1), new Vector3(0, 1, 0), new Vector3(0, -1, 0)];
+    this._cubeUps = [new Vector3(0, 1, 0), new Vector3(0, 1, 0), new Vector3(0, 1, 0), new Vector3(0, 1, 0), new Vector3(0, 0, 1), new Vector3(0, 0, -1)];
+  }
+
+  updateMatrices(light, viewportIndex = 0) {
+    const camera = this.camera;
+    const shadowMatrix = this.matrix;
+
+    _lightPositionWorld$1.setFromMatrixPosition(light.matrixWorld);
+
+    camera.position.copy(_lightPositionWorld$1);
+
+    _lookTarget$1.copy(camera.position);
+
+    _lookTarget$1.add(this._cubeDirections[viewportIndex]);
+
+    camera.up.copy(this._cubeUps[viewportIndex]);
+    camera.lookAt(_lookTarget$1);
+    camera.updateMatrixWorld();
+    shadowMatrix.makeTranslation(-_lightPositionWorld$1.x, -_lightPositionWorld$1.y, -_lightPositionWorld$1.z);
+
+    _projScreenMatrix$1.multiplyMatrices(camera.projectionMatrix, camera.matrixWorldInverse);
+
+    this._frustum.setFromProjectionMatrix(_projScreenMatrix$1);
+  }
+
+}
+
+PointLightShadow.prototype.isPointLightShadow = true;
+
+class PointLight extends Light {
+  constructor(color, intensity, distance = 0, decay = 1) {
+    super(color, intensity);
+    this.type = 'PointLight';
+    this.distance = distance;
+    this.decay = decay; // for physically correct lights, should be 2.
+
+    this.shadow = new PointLightShadow();
+  }
+
+  get power() {
+    // intensity = power per solid angle.
+    // ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
+    return this.intensity * 4 * Math.PI;
+  }
+
+  set power(power) {
+    // intensity = power per solid angle.
+    // ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
+    this.intensity = power / (4 * Math.PI);
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.distance = source.distance;
+    this.decay = source.decay;
+    this.shadow = source.shadow.clone();
+    return this;
+  }
+
+}
+
+exports.PointLight = PointLight;
+PointLight.prototype.isPointLight = true;
+
+class OrthographicCamera extends Camera {
+  constructor(left = -1, right = 1, top = 1, bottom = -1, near = 0.1, far = 2000) {
+    super();
+    this.type = 'OrthographicCamera';
+    this.zoom = 1;
+    this.view = null;
+    this.left = left;
+    this.right = right;
+    this.top = top;
+    this.bottom = bottom;
+    this.near = near;
+    this.far = far;
+    this.updateProjectionMatrix();
+  }
+
+  copy(source, recursive) {
+    super.copy(source, recursive);
+    this.left = source.left;
+    this.right = source.right;
+    this.top = source.top;
+    this.bottom = source.bottom;
+    this.near = source.near;
+    this.far = source.far;
+    this.zoom = source.zoom;
+    this.view = source.view === null ? null : Object.assign({}, source.view);
+    return this;
+  }
+
+  setViewOffset(fullWidth, fullHeight, x, y, width, height) {
+    if (this.view === null) {
+      this.view = {
+        enabled: true,
+        fullWidth: 1,
+        fullHeight: 1,
+        offsetX: 0,
+        offsetY: 0,
+        width: 1,
+        height: 1
+      };
+    }
+
+    this.view.enabled = true;
+    this.view.fullWidth = fullWidth;
+    this.view.fullHeight = fullHeight;
+    this.view.offsetX = x;
+    this.view.offsetY = y;
+    this.view.width = width;
+    this.view.height = height;
+    this.updateProjectionMatrix();
+  }
+
+  clearViewOffset() {
+    if (this.view !== null) {
+      this.view.enabled = false;
+    }
+
+    this.updateProjectionMatrix();
+  }
+
+  updateProjectionMatrix() {
+    const dx = (this.right - this.left) / (2 * this.zoom);
+    const dy = (this.top - this.bottom) / (2 * this.zoom);
+    const cx = (this.right + this.left) / 2;
+    const cy = (this.top + this.bottom) / 2;
+    let left = cx - dx;
+    let right = cx + dx;
+    let top = cy + dy;
+    let bottom = cy - dy;
+
+    if (this.view !== null && this.view.enabled) {
+      const scaleW = (this.right - this.left) / this.view.fullWidth / this.zoom;
+      const scaleH = (this.top - this.bottom) / this.view.fullHeight / this.zoom;
+      left += scaleW * this.view.offsetX;
+      right = left + scaleW * this.view.width;
+      top -= scaleH * this.view.offsetY;
+      bottom = top - scaleH * this.view.height;
+    }
+
+    this.projectionMatrix.makeOrthographic(left, right, top, bottom, this.near, this.far);
+    this.projectionMatrixInverse.copy(this.projectionMatrix).invert();
+  }
+
+  toJSON(meta) {
+    const data = Object3D.prototype.toJSON.call(this, meta);
+    data.object.zoom = this.zoom;
+    data.object.left = this.left;
+    data.object.right = this.right;
+    data.object.top = this.top;
+    data.object.bottom = this.bottom;
+    data.object.near = this.near;
+    data.object.far = this.far;
+    if (this.view !== null) data.object.view = Object.assign({}, this.view);
+    return data;
+  }
+
+}
+
+exports.OrthographicCamera = OrthographicCamera;
+OrthographicCamera.prototype.isOrthographicCamera = true;
+
+class DirectionalLightShadow extends LightShadow {
+  constructor() {
+    super(new OrthographicCamera(-5, 5, 5, -5, 0.5, 500));
+  }
+
+}
+
+DirectionalLightShadow.prototype.isDirectionalLightShadow = true;
+
+class DirectionalLight extends Light {
+  constructor(color, intensity) {
+    super(color, intensity);
+    this.type = 'DirectionalLight';
+    this.position.copy(Object3D.DefaultUp);
+    this.updateMatrix();
+    this.target = new Object3D();
+    this.shadow = new DirectionalLightShadow();
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.target = source.target.clone();
+    this.shadow = source.shadow.clone();
+    return this;
+  }
+
+}
+
+exports.DirectionalLight = DirectionalLight;
+DirectionalLight.prototype.isDirectionalLight = true;
+
+class AmbientLight extends Light {
+  constructor(color, intensity) {
+    super(color, intensity);
+    this.type = 'AmbientLight';
+  }
+
+}
+
+exports.AmbientLight = AmbientLight;
+AmbientLight.prototype.isAmbientLight = true;
+
+class RectAreaLight extends Light {
+  constructor(color, intensity, width = 10, height = 10) {
+    super(color, intensity);
+    this.type = 'RectAreaLight';
+    this.width = width;
+    this.height = height;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.width = source.width;
+    this.height = source.height;
+    return this;
+  }
+
+  toJSON(meta) {
+    const data = super.toJSON(meta);
+    data.object.width = this.width;
+    data.object.height = this.height;
+    return data;
+  }
+
+}
+
+exports.RectAreaLight = RectAreaLight;
+RectAreaLight.prototype.isRectAreaLight = true;
+/**
+ * Primary reference:
+ *   https://graphics.stanford.edu/papers/envmap/envmap.pdf
+ *
+ * Secondary reference:
+ *   https://www.ppsloan.org/publications/StupidSH36.pdf
+ */
+// 3-band SH defined by 9 coefficients
+
+class SphericalHarmonics3 {
+  constructor() {
+    this.coefficients = [];
+
+    for (let i = 0; i < 9; i++) {
+      this.coefficients.push(new Vector3());
+    }
+  }
+
+  set(coefficients) {
+    for (let i = 0; i < 9; i++) {
+      this.coefficients[i].copy(coefficients[i]);
+    }
+
+    return this;
+  }
+
+  zero() {
+    for (let i = 0; i < 9; i++) {
+      this.coefficients[i].set(0, 0, 0);
+    }
+
+    return this;
+  } // get the radiance in the direction of the normal
+  // target is a Vector3
+
+
+  getAt(normal, target) {
+    // normal is assumed to be unit length
+    const x = normal.x,
+          y = normal.y,
+          z = normal.z;
+    const coeff = this.coefficients; // band 0
+
+    target.copy(coeff[0]).multiplyScalar(0.282095); // band 1
+
+    target.addScaledVector(coeff[1], 0.488603 * y);
+    target.addScaledVector(coeff[2], 0.488603 * z);
+    target.addScaledVector(coeff[3], 0.488603 * x); // band 2
+
+    target.addScaledVector(coeff[4], 1.092548 * (x * y));
+    target.addScaledVector(coeff[5], 1.092548 * (y * z));
+    target.addScaledVector(coeff[6], 0.315392 * (3.0 * z * z - 1.0));
+    target.addScaledVector(coeff[7], 1.092548 * (x * z));
+    target.addScaledVector(coeff[8], 0.546274 * (x * x - y * y));
+    return target;
+  } // get the irradiance (radiance convolved with cosine lobe) in the direction of the normal
+  // target is a Vector3
+  // https://graphics.stanford.edu/papers/envmap/envmap.pdf
+
+
+  getIrradianceAt(normal, target) {
+    // normal is assumed to be unit length
+    const x = normal.x,
+          y = normal.y,
+          z = normal.z;
+    const coeff = this.coefficients; // band 0
+
+    target.copy(coeff[0]).multiplyScalar(0.886227); // π * 0.282095
+    // band 1
+
+    target.addScaledVector(coeff[1], 2.0 * 0.511664 * y); // ( 2 * π / 3 ) * 0.488603
+
+    target.addScaledVector(coeff[2], 2.0 * 0.511664 * z);
+    target.addScaledVector(coeff[3], 2.0 * 0.511664 * x); // band 2
+
+    target.addScaledVector(coeff[4], 2.0 * 0.429043 * x * y); // ( π / 4 ) * 1.092548
+
+    target.addScaledVector(coeff[5], 2.0 * 0.429043 * y * z);
+    target.addScaledVector(coeff[6], 0.743125 * z * z - 0.247708); // ( π / 4 ) * 0.315392 * 3
+
+    target.addScaledVector(coeff[7], 2.0 * 0.429043 * x * z);
+    target.addScaledVector(coeff[8], 0.429043 * (x * x - y * y)); // ( π / 4 ) * 0.546274
+
+    return target;
+  }
+
+  add(sh) {
+    for (let i = 0; i < 9; i++) {
+      this.coefficients[i].add(sh.coefficients[i]);
+    }
+
+    return this;
+  }
+
+  addScaledSH(sh, s) {
+    for (let i = 0; i < 9; i++) {
+      this.coefficients[i].addScaledVector(sh.coefficients[i], s);
+    }
+
+    return this;
+  }
+
+  scale(s) {
+    for (let i = 0; i < 9; i++) {
+      this.coefficients[i].multiplyScalar(s);
+    }
+
+    return this;
+  }
+
+  lerp(sh, alpha) {
+    for (let i = 0; i < 9; i++) {
+      this.coefficients[i].lerp(sh.coefficients[i], alpha);
+    }
+
+    return this;
+  }
+
+  equals(sh) {
+    for (let i = 0; i < 9; i++) {
+      if (!this.coefficients[i].equals(sh.coefficients[i])) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  copy(sh) {
+    return this.set(sh.coefficients);
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+  fromArray(array, offset = 0) {
+    const coefficients = this.coefficients;
+
+    for (let i = 0; i < 9; i++) {
+      coefficients[i].fromArray(array, offset + i * 3);
+    }
+
+    return this;
+  }
+
+  toArray(array = [], offset = 0) {
+    const coefficients = this.coefficients;
+
+    for (let i = 0; i < 9; i++) {
+      coefficients[i].toArray(array, offset + i * 3);
+    }
+
+    return array;
+  } // evaluate the basis functions
+  // shBasis is an Array[ 9 ]
+
+
+  static getBasisAt(normal, shBasis) {
+    // normal is assumed to be unit length
+    const x = normal.x,
+          y = normal.y,
+          z = normal.z; // band 0
+
+    shBasis[0] = 0.282095; // band 1
+
+    shBasis[1] = 0.488603 * y;
+    shBasis[2] = 0.488603 * z;
+    shBasis[3] = 0.488603 * x; // band 2
+
+    shBasis[4] = 1.092548 * x * y;
+    shBasis[5] = 1.092548 * y * z;
+    shBasis[6] = 0.315392 * (3 * z * z - 1);
+    shBasis[7] = 1.092548 * x * z;
+    shBasis[8] = 0.546274 * (x * x - y * y);
+  }
+
+}
+
+exports.SphericalHarmonics3 = SphericalHarmonics3;
+SphericalHarmonics3.prototype.isSphericalHarmonics3 = true;
+
+class LightProbe extends Light {
+  constructor(sh = new SphericalHarmonics3(), intensity = 1) {
+    super(undefined, intensity);
+    this.sh = sh;
+  }
+
+  copy(source) {
+    super.copy(source);
+    this.sh.copy(source.sh);
+    return this;
+  }
+
+  fromJSON(json) {
+    this.intensity = json.intensity; // TODO: Move this bit to Light.fromJSON();
+
+    this.sh.fromArray(json.sh);
+    return this;
+  }
+
+  toJSON(meta) {
+    const data = super.toJSON(meta);
+    data.object.sh = this.sh.toArray();
+    return data;
+  }
+
+}
+
+exports.LightProbe = LightProbe;
+LightProbe.prototype.isLightProbe = true;
+
+class MaterialLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+    this.textures = {};
+  }
+
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const loader = new FileLoader(scope.manager);
+    loader.setPath(scope.path);
+    loader.setRequestHeader(scope.requestHeader);
+    loader.setWithCredentials(scope.withCredentials);
+    loader.load(url, function (text) {
+      try {
+        onLoad(scope.parse(JSON.parse(text)));
+      } catch (e) {
+        if (onError) {
+          onError(e);
+        } else {
+          console.error(e);
+        }
+
+        scope.manager.itemError(url);
+      }
+    }, onProgress, onError);
+  }
+
+  parse(json) {
+    const textures = this.textures;
+
+    function getTexture(name) {
+      if (textures[name] === undefined) {
+        console.warn('THREE.MaterialLoader: Undefined texture', name);
+      }
+
+      return textures[name];
+    }
+
+    const material = new Materials[json.type]();
+    if (json.uuid !== undefined) material.uuid = json.uuid;
+    if (json.name !== undefined) material.name = json.name;
+    if (json.color !== undefined && material.color !== undefined) material.color.setHex(json.color);
+    if (json.roughness !== undefined) material.roughness = json.roughness;
+    if (json.metalness !== undefined) material.metalness = json.metalness;
+    if (json.sheen !== undefined) material.sheen = new Color().setHex(json.sheen);
+    if (json.emissive !== undefined && material.emissive !== undefined) material.emissive.setHex(json.emissive);
+    if (json.specular !== undefined && material.specular !== undefined) material.specular.setHex(json.specular);
+    if (json.shininess !== undefined) material.shininess = json.shininess;
+    if (json.clearcoat !== undefined) material.clearcoat = json.clearcoat;
+    if (json.clearcoatRoughness !== undefined) material.clearcoatRoughness = json.clearcoatRoughness;
+    if (json.fog !== undefined) material.fog = json.fog;
+    if (json.flatShading !== undefined) material.flatShading = json.flatShading;
+    if (json.blending !== undefined) material.blending = json.blending;
+    if (json.combine !== undefined) material.combine = json.combine;
+    if (json.side !== undefined) material.side = json.side;
+    if (json.opacity !== undefined) material.opacity = json.opacity;
+    if (json.transparent !== undefined) material.transparent = json.transparent;
+    if (json.alphaTest !== undefined) material.alphaTest = json.alphaTest;
+    if (json.depthTest !== undefined) material.depthTest = json.depthTest;
+    if (json.depthWrite !== undefined) material.depthWrite = json.depthWrite;
+    if (json.colorWrite !== undefined) material.colorWrite = json.colorWrite;
+    if (json.stencilWrite !== undefined) material.stencilWrite = json.stencilWrite;
+    if (json.stencilWriteMask !== undefined) material.stencilWriteMask = json.stencilWriteMask;
+    if (json.stencilFunc !== undefined) material.stencilFunc = json.stencilFunc;
+    if (json.stencilRef !== undefined) material.stencilRef = json.stencilRef;
+    if (json.stencilFuncMask !== undefined) material.stencilFuncMask = json.stencilFuncMask;
+    if (json.stencilFail !== undefined) material.stencilFail = json.stencilFail;
+    if (json.stencilZFail !== undefined) material.stencilZFail = json.stencilZFail;
+    if (json.stencilZPass !== undefined) material.stencilZPass = json.stencilZPass;
+    if (json.wireframe !== undefined) material.wireframe = json.wireframe;
+    if (json.wireframeLinewidth !== undefined) material.wireframeLinewidth = json.wireframeLinewidth;
+    if (json.wireframeLinecap !== undefined) material.wireframeLinecap = json.wireframeLinecap;
+    if (json.wireframeLinejoin !== undefined) material.wireframeLinejoin = json.wireframeLinejoin;
+    if (json.rotation !== undefined) material.rotation = json.rotation;
+    if (json.linewidth !== 1) material.linewidth = json.linewidth;
+    if (json.dashSize !== undefined) material.dashSize = json.dashSize;
+    if (json.gapSize !== undefined) material.gapSize = json.gapSize;
+    if (json.scale !== undefined) material.scale = json.scale;
+    if (json.polygonOffset !== undefined) material.polygonOffset = json.polygonOffset;
+    if (json.polygonOffsetFactor !== undefined) material.polygonOffsetFactor = json.polygonOffsetFactor;
+    if (json.polygonOffsetUnits !== undefined) material.polygonOffsetUnits = json.polygonOffsetUnits;
+    if (json.skinning !== undefined) material.skinning = json.skinning;
+    if (json.morphTargets !== undefined) material.morphTargets = json.morphTargets;
+    if (json.morphNormals !== undefined) material.morphNormals = json.morphNormals;
+    if (json.dithering !== undefined) material.dithering = json.dithering;
+    if (json.vertexTangents !== undefined) material.vertexTangents = json.vertexTangents;
+    if (json.visible !== undefined) material.visible = json.visible;
+    if (json.toneMapped !== undefined) material.toneMapped = json.toneMapped;
+    if (json.userData !== undefined) material.userData = json.userData;
+
+    if (json.vertexColors !== undefined) {
+      if (typeof json.vertexColors === 'number') {
+        material.vertexColors = json.vertexColors > 0 ? true : false;
+      } else {
+        material.vertexColors = json.vertexColors;
+      }
+    } // Shader Material
+
+
+    if (json.uniforms !== undefined) {
+      for (const name in json.uniforms) {
+        const uniform = json.uniforms[name];
+        material.uniforms[name] = {};
+
+        switch (uniform.type) {
+          case 't':
+            material.uniforms[name].value = getTexture(uniform.value);
+            break;
+
+          case 'c':
+            material.uniforms[name].value = new Color().setHex(uniform.value);
+            break;
+
+          case 'v2':
+            material.uniforms[name].value = new Vector2().fromArray(uniform.value);
+            break;
+
+          case 'v3':
+            material.uniforms[name].value = new Vector3().fromArray(uniform.value);
+            break;
+
+          case 'v4':
+            material.uniforms[name].value = new Vector4().fromArray(uniform.value);
+            break;
+
+          case 'm3':
+            material.uniforms[name].value = new Matrix3().fromArray(uniform.value);
+            break;
+
+          case 'm4':
+            material.uniforms[name].value = new Matrix4().fromArray(uniform.value);
+            break;
+
+          default:
+            material.uniforms[name].value = uniform.value;
+        }
+      }
+    }
+
+    if (json.defines !== undefined) material.defines = json.defines;
+    if (json.vertexShader !== undefined) material.vertexShader = json.vertexShader;
+    if (json.fragmentShader !== undefined) material.fragmentShader = json.fragmentShader;
+
+    if (json.extensions !== undefined) {
+      for (const key in json.extensions) {
+        material.extensions[key] = json.extensions[key];
+      }
+    } // Deprecated
+
+
+    if (json.shading !== undefined) material.flatShading = json.shading === 1; // THREE.FlatShading
+    // for PointsMaterial
+
+    if (json.size !== undefined) material.size = json.size;
+    if (json.sizeAttenuation !== undefined) material.sizeAttenuation = json.sizeAttenuation; // maps
+
+    if (json.map !== undefined) material.map = getTexture(json.map);
+    if (json.matcap !== undefined) material.matcap = getTexture(json.matcap);
+    if (json.alphaMap !== undefined) material.alphaMap = getTexture(json.alphaMap);
+    if (json.bumpMap !== undefined) material.bumpMap = getTexture(json.bumpMap);
+    if (json.bumpScale !== undefined) material.bumpScale = json.bumpScale;
+    if (json.normalMap !== undefined) material.normalMap = getTexture(json.normalMap);
+    if (json.normalMapType !== undefined) material.normalMapType = json.normalMapType;
+
+    if (json.normalScale !== undefined) {
+      let normalScale = json.normalScale;
+
+      if (Array.isArray(normalScale) === false) {
+        // Blender exporter used to export a scalar. See #7459
+        normalScale = [normalScale, normalScale];
+      }
+
+      material.normalScale = new Vector2().fromArray(normalScale);
+    }
+
+    if (json.displacementMap !== undefined) material.displacementMap = getTexture(json.displacementMap);
+    if (json.displacementScale !== undefined) material.displacementScale = json.displacementScale;
+    if (json.displacementBias !== undefined) material.displacementBias = json.displacementBias;
+    if (json.roughnessMap !== undefined) material.roughnessMap = getTexture(json.roughnessMap);
+    if (json.metalnessMap !== undefined) material.metalnessMap = getTexture(json.metalnessMap);
+    if (json.emissiveMap !== undefined) material.emissiveMap = getTexture(json.emissiveMap);
+    if (json.emissiveIntensity !== undefined) material.emissiveIntensity = json.emissiveIntensity;
+    if (json.specularMap !== undefined) material.specularMap = getTexture(json.specularMap);
+    if (json.envMap !== undefined) material.envMap = getTexture(json.envMap);
+    if (json.envMapIntensity !== undefined) material.envMapIntensity = json.envMapIntensity;
+    if (json.reflectivity !== undefined) material.reflectivity = json.reflectivity;
+    if (json.refractionRatio !== undefined) material.refractionRatio = json.refractionRatio;
+    if (json.lightMap !== undefined) material.lightMap = getTexture(json.lightMap);
+    if (json.lightMapIntensity !== undefined) material.lightMapIntensity = json.lightMapIntensity;
+    if (json.aoMap !== undefined) material.aoMap = getTexture(json.aoMap);
+    if (json.aoMapIntensity !== undefined) material.aoMapIntensity = json.aoMapIntensity;
+    if (json.gradientMap !== undefined) material.gradientMap = getTexture(json.gradientMap);
+    if (json.clearcoatMap !== undefined) material.clearcoatMap = getTexture(json.clearcoatMap);
+    if (json.clearcoatRoughnessMap !== undefined) material.clearcoatRoughnessMap = getTexture(json.clearcoatRoughnessMap);
+    if (json.clearcoatNormalMap !== undefined) material.clearcoatNormalMap = getTexture(json.clearcoatNormalMap);
+    if (json.clearcoatNormalScale !== undefined) material.clearcoatNormalScale = new Vector2().fromArray(json.clearcoatNormalScale);
+    if (json.transmission !== undefined) material.transmission = json.transmission;
+    if (json.transmissionMap !== undefined) material.transmissionMap = getTexture(json.transmissionMap);
+    return material;
+  }
+
+  setTextures(value) {
+    this.textures = value;
+    return this;
+  }
+
+}
+
+exports.MaterialLoader = MaterialLoader;
+const LoaderUtils = {
+  decodeText: function (array) {
+    if (typeof TextDecoder !== 'undefined') {
+      return new TextDecoder().decode(array);
+    } // Avoid the String.fromCharCode.apply(null, array) shortcut, which
+    // throws a "maximum call stack size exceeded" error for large arrays.
+
+
+    let s = '';
+
+    for (let i = 0, il = array.length; i < il; i++) {
+      // Implicitly assumes little-endian.
+      s += String.fromCharCode(array[i]);
+    }
+
+    try {
+      // merges multi-byte utf-8 characters.
+      return decodeURIComponent(escape(s));
+    } catch (e) {
+      // see #16358
+      return s;
+    }
+  },
+  extractUrlBase: function (url) {
+    const index = url.lastIndexOf('/');
+    if (index === -1) return './';
+    return url.substr(0, index + 1);
+  }
+};
+exports.LoaderUtils = LoaderUtils;
+
+function InstancedBufferGeometry() {
+  BufferGeometry.call(this);
+  this.type = 'InstancedBufferGeometry';
+  this.instanceCount = Infinity;
+}
+
+InstancedBufferGeometry.prototype = Object.assign(Object.create(BufferGeometry.prototype), {
+  constructor: InstancedBufferGeometry,
+  isInstancedBufferGeometry: true,
+  copy: function (source) {
+    BufferGeometry.prototype.copy.call(this, source);
+    this.instanceCount = source.instanceCount;
+    return this;
+  },
+  clone: function () {
+    return new this.constructor().copy(this);
+  },
+  toJSON: function () {
+    const data = BufferGeometry.prototype.toJSON.call(this);
+    data.instanceCount = this.instanceCount;
+    data.isInstancedBufferGeometry = true;
+    return data;
+  }
+});
+
+function InstancedBufferAttribute(array, itemSize, normalized, meshPerAttribute) {
+  if (typeof normalized === 'number') {
+    meshPerAttribute = normalized;
+    normalized = false;
+    console.error('THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.');
+  }
+
+  BufferAttribute.call(this, array, itemSize, normalized);
+  this.meshPerAttribute = meshPerAttribute || 1;
+}
+
+InstancedBufferAttribute.prototype = Object.assign(Object.create(BufferAttribute.prototype), {
+  constructor: InstancedBufferAttribute,
+  isInstancedBufferAttribute: true,
+  copy: function (source) {
+    BufferAttribute.prototype.copy.call(this, source);
+    this.meshPerAttribute = source.meshPerAttribute;
+    return this;
+  },
+  toJSON: function () {
+    const data = BufferAttribute.prototype.toJSON.call(this);
+    data.meshPerAttribute = this.meshPerAttribute;
+    data.isInstancedBufferAttribute = true;
+    return data;
+  }
+});
+
+class BufferGeometryLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+  }
+
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const loader = new FileLoader(scope.manager);
+    loader.setPath(scope.path);
+    loader.setRequestHeader(scope.requestHeader);
+    loader.setWithCredentials(scope.withCredentials);
+    loader.load(url, function (text) {
+      try {
+        onLoad(scope.parse(JSON.parse(text)));
+      } catch (e) {
+        if (onError) {
+          onError(e);
+        } else {
+          console.error(e);
+        }
+
+        scope.manager.itemError(url);
+      }
+    }, onProgress, onError);
+  }
+
+  parse(json) {
+    const interleavedBufferMap = {};
+    const arrayBufferMap = {};
+
+    function getInterleavedBuffer(json, uuid) {
+      if (interleavedBufferMap[uuid] !== undefined) return interleavedBufferMap[uuid];
+      const interleavedBuffers = json.interleavedBuffers;
+      const interleavedBuffer = interleavedBuffers[uuid];
+      const buffer = getArrayBuffer(json, interleavedBuffer.buffer);
+      const array = getTypedArray(interleavedBuffer.type, buffer);
+      const ib = new InterleavedBuffer(array, interleavedBuffer.stride);
+      ib.uuid = interleavedBuffer.uuid;
+      interleavedBufferMap[uuid] = ib;
+      return ib;
+    }
+
+    function getArrayBuffer(json, uuid) {
+      if (arrayBufferMap[uuid] !== undefined) return arrayBufferMap[uuid];
+      const arrayBuffers = json.arrayBuffers;
+      const arrayBuffer = arrayBuffers[uuid];
+      const ab = new Uint32Array(arrayBuffer).buffer;
+      arrayBufferMap[uuid] = ab;
+      return ab;
+    }
+
+    const geometry = json.isInstancedBufferGeometry ? new InstancedBufferGeometry() : new BufferGeometry();
+    const index = json.data.index;
+
+    if (index !== undefined) {
+      const typedArray = getTypedArray(index.type, index.array);
+      geometry.setIndex(new BufferAttribute(typedArray, 1));
+    }
+
+    const attributes = json.data.attributes;
+
+    for (const key in attributes) {
+      const attribute = attributes[key];
+      let bufferAttribute;
+
+      if (attribute.isInterleavedBufferAttribute) {
+        const interleavedBuffer = getInterleavedBuffer(json.data, attribute.data);
+        bufferAttribute = new InterleavedBufferAttribute(interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized);
+      } else {
+        const typedArray = getTypedArray(attribute.type, attribute.array);
+        const bufferAttributeConstr = attribute.isInstancedBufferAttribute ? InstancedBufferAttribute : BufferAttribute;
+        bufferAttribute = new bufferAttributeConstr(typedArray, attribute.itemSize, attribute.normalized);
+      }
+
+      if (attribute.name !== undefined) bufferAttribute.name = attribute.name;
+      geometry.setAttribute(key, bufferAttribute);
+    }
+
+    const morphAttributes = json.data.morphAttributes;
+
+    if (morphAttributes) {
+      for (const key in morphAttributes) {
+        const attributeArray = morphAttributes[key];
+        const array = [];
+
+        for (let i = 0, il = attributeArray.length; i < il; i++) {
+          const attribute = attributeArray[i];
+          let bufferAttribute;
+
+          if (attribute.isInterleavedBufferAttribute) {
+            const interleavedBuffer = getInterleavedBuffer(json.data, attribute.data);
+            bufferAttribute = new InterleavedBufferAttribute(interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized);
+          } else {
+            const typedArray = getTypedArray(attribute.type, attribute.array);
+            bufferAttribute = new BufferAttribute(typedArray, attribute.itemSize, attribute.normalized);
+          }
+
+          if (attribute.name !== undefined) bufferAttribute.name = attribute.name;
+          array.push(bufferAttribute);
+        }
+
+        geometry.morphAttributes[key] = array;
+      }
+    }
+
+    const morphTargetsRelative = json.data.morphTargetsRelative;
+
+    if (morphTargetsRelative) {
+      geometry.morphTargetsRelative = true;
+    }
+
+    const groups = json.data.groups || json.data.drawcalls || json.data.offsets;
+
+    if (groups !== undefined) {
+      for (let i = 0, n = groups.length; i !== n; ++i) {
+        const group = groups[i];
+        geometry.addGroup(group.start, group.count, group.materialIndex);
+      }
+    }
+
+    const boundingSphere = json.data.boundingSphere;
+
+    if (boundingSphere !== undefined) {
+      const center = new Vector3();
+
+      if (boundingSphere.center !== undefined) {
+        center.fromArray(boundingSphere.center);
+      }
+
+      geometry.boundingSphere = new Sphere(center, boundingSphere.radius);
+    }
+
+    if (json.name) geometry.name = json.name;
+    if (json.userData) geometry.userData = json.userData;
+    return geometry;
+  }
+
+}
+
+exports.BufferGeometryLoader = BufferGeometryLoader;
+
+class ObjectLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+  }
+
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const path = this.path === '' ? LoaderUtils.extractUrlBase(url) : this.path;
+    this.resourcePath = this.resourcePath || path;
+    const loader = new FileLoader(this.manager);
+    loader.setPath(this.path);
+    loader.setRequestHeader(this.requestHeader);
+    loader.setWithCredentials(this.withCredentials);
+    loader.load(url, function (text) {
+      let json = null;
+
+      try {
+        json = JSON.parse(text);
+      } catch (error) {
+        if (onError !== undefined) onError(error);
+        console.error('THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message);
+        return;
+      }
+
+      const metadata = json.metadata;
+
+      if (metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry') {
+        console.error('THREE.ObjectLoader: Can\'t load ' + url);
+        return;
+      }
+
+      scope.parse(json, onLoad);
+    }, onProgress, onError);
+  }
+
+  parse(json, onLoad) {
+    const animations = this.parseAnimations(json.animations);
+    const shapes = this.parseShapes(json.shapes);
+    const geometries = this.parseGeometries(json.geometries, shapes);
+    const images = this.parseImages(json.images, function () {
+      if (onLoad !== undefined) onLoad(object);
+    });
+    const textures = this.parseTextures(json.textures, images);
+    const materials = this.parseMaterials(json.materials, textures);
+    const object = this.parseObject(json.object, geometries, materials, animations);
+    const skeletons = this.parseSkeletons(json.skeletons, object);
+    this.bindSkeletons(object, skeletons); //
+
+    if (onLoad !== undefined) {
+      let hasImages = false;
+
+      for (const uuid in images) {
+        if (images[uuid] instanceof HTMLImageElement) {
+          hasImages = true;
+          break;
+        }
+      }
+
+      if (hasImages === false) onLoad(object);
+    }
+
+    return object;
+  }
+
+  parseShapes(json) {
+    const shapes = {};
+
+    if (json !== undefined) {
+      for (let i = 0, l = json.length; i < l; i++) {
+        const shape = new Shape().fromJSON(json[i]);
+        shapes[shape.uuid] = shape;
+      }
+    }
+
+    return shapes;
+  }
+
+  parseSkeletons(json, object) {
+    const skeletons = {};
+    const bones = {}; // generate bone lookup table
+
+    object.traverse(function (child) {
+      if (child.isBone) bones[child.uuid] = child;
+    }); // create skeletons
+
+    if (json !== undefined) {
+      for (let i = 0, l = json.length; i < l; i++) {
+        const skeleton = new Skeleton().fromJSON(json[i], bones);
+        skeletons[skeleton.uuid] = skeleton;
+      }
+    }
+
+    return skeletons;
+  }
+
+  parseGeometries(json, shapes) {
+    const geometries = {};
+    let geometryShapes;
+
+    if (json !== undefined) {
+      const bufferGeometryLoader = new BufferGeometryLoader();
+
+      for (let i = 0, l = json.length; i < l; i++) {
+        let geometry;
+        const data = json[i];
+
+        switch (data.type) {
+          case 'PlaneGeometry':
+          case 'PlaneBufferGeometry':
+            geometry = new Geometries[data.type](data.width, data.height, data.widthSegments, data.heightSegments);
+            break;
+
+          case 'BoxGeometry':
+          case 'BoxBufferGeometry':
+            geometry = new Geometries[data.type](data.width, data.height, data.depth, data.widthSegments, data.heightSegments, data.depthSegments);
+            break;
+
+          case 'CircleGeometry':
+          case 'CircleBufferGeometry':
+            geometry = new Geometries[data.type](data.radius, data.segments, data.thetaStart, data.thetaLength);
+            break;
+
+          case 'CylinderGeometry':
+          case 'CylinderBufferGeometry':
+            geometry = new Geometries[data.type](data.radiusTop, data.radiusBottom, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength);
+            break;
+
+          case 'ConeGeometry':
+          case 'ConeBufferGeometry':
+            geometry = new Geometries[data.type](data.radius, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength);
+            break;
+
+          case 'SphereGeometry':
+          case 'SphereBufferGeometry':
+            geometry = new Geometries[data.type](data.radius, data.widthSegments, data.heightSegments, data.phiStart, data.phiLength, data.thetaStart, data.thetaLength);
+            break;
+
+          case 'DodecahedronGeometry':
+          case 'DodecahedronBufferGeometry':
+          case 'IcosahedronGeometry':
+          case 'IcosahedronBufferGeometry':
+          case 'OctahedronGeometry':
+          case 'OctahedronBufferGeometry':
+          case 'TetrahedronGeometry':
+          case 'TetrahedronBufferGeometry':
+            geometry = new Geometries[data.type](data.radius, data.detail);
+            break;
+
+          case 'RingGeometry':
+          case 'RingBufferGeometry':
+            geometry = new Geometries[data.type](data.innerRadius, data.outerRadius, data.thetaSegments, data.phiSegments, data.thetaStart, data.thetaLength);
+            break;
+
+          case 'TorusGeometry':
+          case 'TorusBufferGeometry':
+            geometry = new Geometries[data.type](data.radius, data.tube, data.radialSegments, data.tubularSegments, data.arc);
+            break;
+
+          case 'TorusKnotGeometry':
+          case 'TorusKnotBufferGeometry':
+            geometry = new Geometries[data.type](data.radius, data.tube, data.tubularSegments, data.radialSegments, data.p, data.q);
+            break;
+
+          case 'TubeGeometry':
+          case 'TubeBufferGeometry':
+            // This only works for built-in curves (e.g. CatmullRomCurve3).
+            // User defined curves or instances of CurvePath will not be deserialized.
+            geometry = new Geometries[data.type](new Curves[data.path.type]().fromJSON(data.path), data.tubularSegments, data.radius, data.radialSegments, data.closed);
+            break;
+
+          case 'LatheGeometry':
+          case 'LatheBufferGeometry':
+            geometry = new Geometries[data.type](data.points, data.segments, data.phiStart, data.phiLength);
+            break;
+
+          case 'PolyhedronGeometry':
+          case 'PolyhedronBufferGeometry':
+            geometry = new Geometries[data.type](data.vertices, data.indices, data.radius, data.details);
+            break;
+
+          case 'ShapeGeometry':
+          case 'ShapeBufferGeometry':
+            geometryShapes = [];
+
+            for (let j = 0, jl = data.shapes.length; j < jl; j++) {
+              const shape = shapes[data.shapes[j]];
+              geometryShapes.push(shape);
+            }
+
+            geometry = new Geometries[data.type](geometryShapes, data.curveSegments);
+            break;
+
+          case 'ExtrudeGeometry':
+          case 'ExtrudeBufferGeometry':
+            geometryShapes = [];
+
+            for (let j = 0, jl = data.shapes.length; j < jl; j++) {
+              const shape = shapes[data.shapes[j]];
+              geometryShapes.push(shape);
+            }
+
+            const extrudePath = data.options.extrudePath;
+
+            if (extrudePath !== undefined) {
+              data.options.extrudePath = new Curves[extrudePath.type]().fromJSON(extrudePath);
+            }
+
+            geometry = new Geometries[data.type](geometryShapes, data.options);
+            break;
+
+          case 'BufferGeometry':
+          case 'InstancedBufferGeometry':
+            geometry = bufferGeometryLoader.parse(data);
+            break;
+
+          case 'Geometry':
+            console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');
+            break;
+
+          default:
+            console.warn('THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"');
+            continue;
+        }
+
+        geometry.uuid = data.uuid;
+        if (data.name !== undefined) geometry.name = data.name;
+        if (geometry.isBufferGeometry === true && data.userData !== undefined) geometry.userData = data.userData;
+        geometries[data.uuid] = geometry;
+      }
+    }
+
+    return geometries;
+  }
+
+  parseMaterials(json, textures) {
+    const cache = {}; // MultiMaterial
+
+    const materials = {};
+
+    if (json !== undefined) {
+      const loader = new MaterialLoader();
+      loader.setTextures(textures);
+
+      for (let i = 0, l = json.length; i < l; i++) {
+        const data = json[i];
+
+        if (data.type === 'MultiMaterial') {
+          // Deprecated
+          const array = [];
+
+          for (let j = 0; j < data.materials.length; j++) {
+            const material = data.materials[j];
+
+            if (cache[material.uuid] === undefined) {
+              cache[material.uuid] = loader.parse(material);
+            }
+
+            array.push(cache[material.uuid]);
+          }
+
+          materials[data.uuid] = array;
+        } else {
+          if (cache[data.uuid] === undefined) {
+            cache[data.uuid] = loader.parse(data);
+          }
+
+          materials[data.uuid] = cache[data.uuid];
+        }
+      }
+    }
+
+    return materials;
+  }
+
+  parseAnimations(json) {
+    const animations = {};
+
+    if (json !== undefined) {
+      for (let i = 0; i < json.length; i++) {
+        const data = json[i];
+        const clip = AnimationClip.parse(data);
+        animations[clip.uuid] = clip;
+      }
+    }
+
+    return animations;
+  }
+
+  parseImages(json, onLoad) {
+    const scope = this;
+    const images = {};
+    let loader;
+
+    function loadImage(url) {
+      scope.manager.itemStart(url);
+      return loader.load(url, function () {
+        scope.manager.itemEnd(url);
+      }, undefined, function () {
+        scope.manager.itemError(url);
+        scope.manager.itemEnd(url);
+      });
+    }
+
+    function deserializeImage(image) {
+      if (typeof image === 'string') {
+        const url = image;
+        const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test(url) ? url : scope.resourcePath + url;
+        return loadImage(path);
+      } else {
+        if (image.data) {
+          return {
+            data: getTypedArray(image.type, image.data),
+            width: image.width,
+            height: image.height
+          };
+        } else {
+          return null;
+        }
+      }
+    }
+
+    if (json !== undefined && json.length > 0) {
+      const manager = new LoadingManager(onLoad);
+      loader = new ImageLoader(manager);
+      loader.setCrossOrigin(this.crossOrigin);
+
+      for (let i = 0, il = json.length; i < il; i++) {
+        const image = json[i];
+        const url = image.url;
+
+        if (Array.isArray(url)) {
+          // load array of images e.g CubeTexture
+          images[image.uuid] = [];
+
+          for (let j = 0, jl = url.length; j < jl; j++) {
+            const currentUrl = url[j];
+            const deserializedImage = deserializeImage(currentUrl);
+
+            if (deserializedImage !== null) {
+              if (deserializedImage instanceof HTMLImageElement) {
+                images[image.uuid].push(deserializedImage);
+              } else {
+                // special case: handle array of data textures for cube textures
+                images[image.uuid].push(new DataTexture(deserializedImage.data, deserializedImage.width, deserializedImage.height));
+              }
+            }
+          }
+        } else {
+          // load single image
+          const deserializedImage = deserializeImage(image.url);
+
+          if (deserializedImage !== null) {
+            images[image.uuid] = deserializedImage;
+          }
+        }
+      }
+    }
+
+    return images;
+  }
+
+  parseTextures(json, images) {
+    function parseConstant(value, type) {
+      if (typeof value === 'number') return value;
+      console.warn('THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value);
+      return type[value];
+    }
+
+    const textures = {};
+
+    if (json !== undefined) {
+      for (let i = 0, l = json.length; i < l; i++) {
+        const data = json[i];
+
+        if (data.image === undefined) {
+          console.warn('THREE.ObjectLoader: No "image" specified for', data.uuid);
+        }
+
+        if (images[data.image] === undefined) {
+          console.warn('THREE.ObjectLoader: Undefined image', data.image);
+        }
+
+        let texture;
+        const image = images[data.image];
+
+        if (Array.isArray(image)) {
+          texture = new CubeTexture(image);
+          if (image.length === 6) texture.needsUpdate = true;
+        } else {
+          if (image && image.data) {
+            texture = new DataTexture(image.data, image.width, image.height);
+          } else {
+            texture = new Texture(image);
+          }
+
+          if (image) texture.needsUpdate = true; // textures can have undefined image data
+        }
+
+        texture.uuid = data.uuid;
+        if (data.name !== undefined) texture.name = data.name;
+        if (data.mapping !== undefined) texture.mapping = parseConstant(data.mapping, TEXTURE_MAPPING);
+        if (data.offset !== undefined) texture.offset.fromArray(data.offset);
+        if (data.repeat !== undefined) texture.repeat.fromArray(data.repeat);
+        if (data.center !== undefined) texture.center.fromArray(data.center);
+        if (data.rotation !== undefined) texture.rotation = data.rotation;
+
+        if (data.wrap !== undefined) {
+          texture.wrapS = parseConstant(data.wrap[0], TEXTURE_WRAPPING);
+          texture.wrapT = parseConstant(data.wrap[1], TEXTURE_WRAPPING);
+        }
+
+        if (data.format !== undefined) texture.format = data.format;
+        if (data.type !== undefined) texture.type = data.type;
+        if (data.encoding !== undefined) texture.encoding = data.encoding;
+        if (data.minFilter !== undefined) texture.minFilter = parseConstant(data.minFilter, TEXTURE_FILTER);
+        if (data.magFilter !== undefined) texture.magFilter = parseConstant(data.magFilter, TEXTURE_FILTER);
+        if (data.anisotropy !== undefined) texture.anisotropy = data.anisotropy;
+        if (data.flipY !== undefined) texture.flipY = data.flipY;
+        if (data.premultiplyAlpha !== undefined) texture.premultiplyAlpha = data.premultiplyAlpha;
+        if (data.unpackAlignment !== undefined) texture.unpackAlignment = data.unpackAlignment;
+        textures[data.uuid] = texture;
+      }
+    }
+
+    return textures;
+  }
+
+  parseObject(data, geometries, materials, animations) {
+    let object;
+
+    function getGeometry(name) {
+      if (geometries[name] === undefined) {
+        console.warn('THREE.ObjectLoader: Undefined geometry', name);
+      }
+
+      return geometries[name];
+    }
+
+    function getMaterial(name) {
+      if (name === undefined) return undefined;
+
+      if (Array.isArray(name)) {
+        const array = [];
+
+        for (let i = 0, l = name.length; i < l; i++) {
+          const uuid = name[i];
+
+          if (materials[uuid] === undefined) {
+            console.warn('THREE.ObjectLoader: Undefined material', uuid);
+          }
+
+          array.push(materials[uuid]);
+        }
+
+        return array;
+      }
+
+      if (materials[name] === undefined) {
+        console.warn('THREE.ObjectLoader: Undefined material', name);
+      }
+
+      return materials[name];
+    }
+
+    let geometry, material;
+
+    switch (data.type) {
+      case 'Scene':
+        object = new Scene();
+
+        if (data.background !== undefined) {
+          if (Number.isInteger(data.background)) {
+            object.background = new Color(data.background);
+          }
+        }
+
+        if (data.fog !== undefined) {
+          if (data.fog.type === 'Fog') {
+            object.fog = new Fog(data.fog.color, data.fog.near, data.fog.far);
+          } else if (data.fog.type === 'FogExp2') {
+            object.fog = new FogExp2(data.fog.color, data.fog.density);
+          }
+        }
+
+        break;
+
+      case 'PerspectiveCamera':
+        object = new PerspectiveCamera(data.fov, data.aspect, data.near, data.far);
+        if (data.focus !== undefined) object.focus = data.focus;
+        if (data.zoom !== undefined) object.zoom = data.zoom;
+        if (data.filmGauge !== undefined) object.filmGauge = data.filmGauge;
+        if (data.filmOffset !== undefined) object.filmOffset = data.filmOffset;
+        if (data.view !== undefined) object.view = Object.assign({}, data.view);
+        break;
+
+      case 'OrthographicCamera':
+        object = new OrthographicCamera(data.left, data.right, data.top, data.bottom, data.near, data.far);
+        if (data.zoom !== undefined) object.zoom = data.zoom;
+        if (data.view !== undefined) object.view = Object.assign({}, data.view);
+        break;
+
+      case 'AmbientLight':
+        object = new AmbientLight(data.color, data.intensity);
+        break;
+
+      case 'DirectionalLight':
+        object = new DirectionalLight(data.color, data.intensity);
+        break;
+
+      case 'PointLight':
+        object = new PointLight(data.color, data.intensity, data.distance, data.decay);
+        break;
+
+      case 'RectAreaLight':
+        object = new RectAreaLight(data.color, data.intensity, data.width, data.height);
+        break;
+
+      case 'SpotLight':
+        object = new SpotLight(data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay);
+        break;
+
+      case 'HemisphereLight':
+        object = new HemisphereLight(data.color, data.groundColor, data.intensity);
+        break;
+
+      case 'LightProbe':
+        object = new LightProbe().fromJSON(data);
+        break;
+
+      case 'SkinnedMesh':
+        geometry = getGeometry(data.geometry);
+        material = getMaterial(data.material);
+        object = new SkinnedMesh(geometry, material);
+        if (data.bindMode !== undefined) object.bindMode = data.bindMode;
+        if (data.bindMatrix !== undefined) object.bindMatrix.fromArray(data.bindMatrix);
+        if (data.skeleton !== undefined) object.skeleton = data.skeleton;
+        break;
+
+      case 'Mesh':
+        geometry = getGeometry(data.geometry);
+        material = getMaterial(data.material);
+        object = new Mesh(geometry, material);
+        break;
+
+      case 'InstancedMesh':
+        geometry = getGeometry(data.geometry);
+        material = getMaterial(data.material);
+        const count = data.count;
+        const instanceMatrix = data.instanceMatrix;
+        object = new InstancedMesh(geometry, material, count);
+        object.instanceMatrix = new BufferAttribute(new Float32Array(instanceMatrix.array), 16);
+        break;
+
+      case 'LOD':
+        object = new LOD();
+        break;
+
+      case 'Line':
+        object = new Line(getGeometry(data.geometry), getMaterial(data.material));
+        break;
+
+      case 'LineLoop':
+        object = new LineLoop(getGeometry(data.geometry), getMaterial(data.material));
+        break;
+
+      case 'LineSegments':
+        object = new LineSegments(getGeometry(data.geometry), getMaterial(data.material));
+        break;
+
+      case 'PointCloud':
+      case 'Points':
+        object = new Points(getGeometry(data.geometry), getMaterial(data.material));
+        break;
+
+      case 'Sprite':
+        object = new Sprite(getMaterial(data.material));
+        break;
+
+      case 'Group':
+        object = new Group();
+        break;
+
+      case 'Bone':
+        object = new Bone();
+        break;
+
+      default:
+        object = new Object3D();
+    }
+
+    object.uuid = data.uuid;
+    if (data.name !== undefined) object.name = data.name;
+
+    if (data.matrix !== undefined) {
+      object.matrix.fromArray(data.matrix);
+      if (data.matrixAutoUpdate !== undefined) object.matrixAutoUpdate = data.matrixAutoUpdate;
+      if (object.matrixAutoUpdate) object.matrix.decompose(object.position, object.quaternion, object.scale);
+    } else {
+      if (data.position !== undefined) object.position.fromArray(data.position);
+      if (data.rotation !== undefined) object.rotation.fromArray(data.rotation);
+      if (data.quaternion !== undefined) object.quaternion.fromArray(data.quaternion);
+      if (data.scale !== undefined) object.scale.fromArray(data.scale);
+    }
+
+    if (data.castShadow !== undefined) object.castShadow = data.castShadow;
+    if (data.receiveShadow !== undefined) object.receiveShadow = data.receiveShadow;
+
+    if (data.shadow) {
+      if (data.shadow.bias !== undefined) object.shadow.bias = data.shadow.bias;
+      if (data.shadow.normalBias !== undefined) object.shadow.normalBias = data.shadow.normalBias;
+      if (data.shadow.radius !== undefined) object.shadow.radius = data.shadow.radius;
+      if (data.shadow.mapSize !== undefined) object.shadow.mapSize.fromArray(data.shadow.mapSize);
+      if (data.shadow.camera !== undefined) object.shadow.camera = this.parseObject(data.shadow.camera);
+    }
+
+    if (data.visible !== undefined) object.visible = data.visible;
+    if (data.frustumCulled !== undefined) object.frustumCulled = data.frustumCulled;
+    if (data.renderOrder !== undefined) object.renderOrder = data.renderOrder;
+    if (data.userData !== undefined) object.userData = data.userData;
+    if (data.layers !== undefined) object.layers.mask = data.layers;
+
+    if (data.children !== undefined) {
+      const children = data.children;
+
+      for (let i = 0; i < children.length; i++) {
+        object.add(this.parseObject(children[i], geometries, materials, animations));
+      }
+    }
+
+    if (data.animations !== undefined) {
+      const objectAnimations = data.animations;
+
+      for (let i = 0; i < objectAnimations.length; i++) {
+        const uuid = objectAnimations[i];
+        object.animations.push(animations[uuid]);
+      }
+    }
+
+    if (data.type === 'LOD') {
+      if (data.autoUpdate !== undefined) object.autoUpdate = data.autoUpdate;
+      const levels = data.levels;
+
+      for (let l = 0; l < levels.length; l++) {
+        const level = levels[l];
+        const child = object.getObjectByProperty('uuid', level.object);
+
+        if (child !== undefined) {
+          object.addLevel(child, level.distance);
+        }
+      }
+    }
+
+    return object;
+  }
+
+  bindSkeletons(object, skeletons) {
+    if (Object.keys(skeletons).length === 0) return;
+    object.traverse(function (child) {
+      if (child.isSkinnedMesh === true && child.skeleton !== undefined) {
+        const skeleton = skeletons[child.skeleton];
+
+        if (skeleton === undefined) {
+          console.warn('THREE.ObjectLoader: No skeleton found with UUID:', child.skeleton);
+        } else {
+          child.bind(skeleton, child.bindMatrix);
+        }
+      }
+    });
+  }
+  /* DEPRECATED */
+
+
+  setTexturePath(value) {
+    console.warn('THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath().');
+    return this.setResourcePath(value);
+  }
+
+}
+
+exports.ObjectLoader = ObjectLoader;
+const TEXTURE_MAPPING = {
+  UVMapping: UVMapping,
+  CubeReflectionMapping: CubeReflectionMapping,
+  CubeRefractionMapping: CubeRefractionMapping,
+  EquirectangularReflectionMapping: EquirectangularReflectionMapping,
+  EquirectangularRefractionMapping: EquirectangularRefractionMapping,
+  CubeUVReflectionMapping: CubeUVReflectionMapping,
+  CubeUVRefractionMapping: CubeUVRefractionMapping
+};
+const TEXTURE_WRAPPING = {
+  RepeatWrapping: RepeatWrapping,
+  ClampToEdgeWrapping: ClampToEdgeWrapping,
+  MirroredRepeatWrapping: MirroredRepeatWrapping
+};
+const TEXTURE_FILTER = {
+  NearestFilter: NearestFilter,
+  NearestMipmapNearestFilter: NearestMipmapNearestFilter,
+  NearestMipmapLinearFilter: NearestMipmapLinearFilter,
+  LinearFilter: LinearFilter,
+  LinearMipmapNearestFilter: LinearMipmapNearestFilter,
+  LinearMipmapLinearFilter: LinearMipmapLinearFilter
+};
+
+function ImageBitmapLoader(manager) {
+  if (typeof createImageBitmap === 'undefined') {
+    console.warn('THREE.ImageBitmapLoader: createImageBitmap() not supported.');
+  }
+
+  if (typeof fetch === 'undefined') {
+    console.warn('THREE.ImageBitmapLoader: fetch() not supported.');
+  }
+
+  Loader.call(this, manager);
+  this.options = {
+    premultiplyAlpha: 'none'
+  };
+}
+
+ImageBitmapLoader.prototype = Object.assign(Object.create(Loader.prototype), {
+  constructor: ImageBitmapLoader,
+  isImageBitmapLoader: true,
+  setOptions: function setOptions(options) {
+    this.options = options;
+    return this;
+  },
+  load: function (url, onLoad, onProgress, onError) {
+    if (url === undefined) url = '';
+    if (this.path !== undefined) url = this.path + url;
+    url = this.manager.resolveURL(url);
+    const scope = this;
+    const cached = Cache.get(url);
+
+    if (cached !== undefined) {
+      scope.manager.itemStart(url);
+      setTimeout(function () {
+        if (onLoad) onLoad(cached);
+        scope.manager.itemEnd(url);
+      }, 0);
+      return cached;
+    }
+
+    const fetchOptions = {};
+    fetchOptions.credentials = this.crossOrigin === 'anonymous' ? 'same-origin' : 'include';
+    fetchOptions.headers = this.requestHeader;
+    fetch(url, fetchOptions).then(function (res) {
+      return res.blob();
+    }).then(function (blob) {
+      return createImageBitmap(blob, Object.assign(scope.options, {
+        colorSpaceConversion: 'none'
+      }));
+    }).then(function (imageBitmap) {
+      Cache.add(url, imageBitmap);
+      if (onLoad) onLoad(imageBitmap);
+      scope.manager.itemEnd(url);
+    }).catch(function (e) {
+      if (onError) onError(e);
+      scope.manager.itemError(url);
+      scope.manager.itemEnd(url);
+    });
+    scope.manager.itemStart(url);
+  }
+});
+
+class ShapePath {
+  constructor() {
+    this.type = 'ShapePath';
+    this.color = new Color();
+    this.subPaths = [];
+    this.currentPath = null;
+  }
+
+  moveTo(x, y) {
+    this.currentPath = new Path();
+    this.subPaths.push(this.currentPath);
+    this.currentPath.moveTo(x, y);
+    return this;
+  }
+
+  lineTo(x, y) {
+    this.currentPath.lineTo(x, y);
+    return this;
+  }
+
+  quadraticCurveTo(aCPx, aCPy, aX, aY) {
+    this.currentPath.quadraticCurveTo(aCPx, aCPy, aX, aY);
+    return this;
+  }
+
+  bezierCurveTo(aCP1x, aCP1y, aCP2x, aCP2y, aX, aY) {
+    this.currentPath.bezierCurveTo(aCP1x, aCP1y, aCP2x, aCP2y, aX, aY);
+    return this;
+  }
+
+  splineThru(pts) {
+    this.currentPath.splineThru(pts);
+    return this;
+  }
+
+  toShapes(isCCW, noHoles) {
+    function toShapesNoHoles(inSubpaths) {
+      const shapes = [];
+
+      for (let i = 0, l = inSubpaths.length; i < l; i++) {
+        const tmpPath = inSubpaths[i];
+        const tmpShape = new Shape();
+        tmpShape.curves = tmpPath.curves;
+        shapes.push(tmpShape);
+      }
+
+      return shapes;
+    }
+
+    function isPointInsidePolygon(inPt, inPolygon) {
+      const polyLen = inPolygon.length; // inPt on polygon contour => immediate success    or
+      // toggling of inside/outside at every single! intersection point of an edge
+      //  with the horizontal line through inPt, left of inPt
+      //  not counting lowerY endpoints of edges and whole edges on that line
+
+      let inside = false;
+
+      for (let p = polyLen - 1, q = 0; q < polyLen; p = q++) {
+        let edgeLowPt = inPolygon[p];
+        let edgeHighPt = inPolygon[q];
+        let edgeDx = edgeHighPt.x - edgeLowPt.x;
+        let edgeDy = edgeHighPt.y - edgeLowPt.y;
+
+        if (Math.abs(edgeDy) > Number.EPSILON) {
+          // not parallel
+          if (edgeDy < 0) {
+            edgeLowPt = inPolygon[q];
+            edgeDx = -edgeDx;
+            edgeHighPt = inPolygon[p];
+            edgeDy = -edgeDy;
+          }
+
+          if (inPt.y < edgeLowPt.y || inPt.y > edgeHighPt.y) continue;
+
+          if (inPt.y === edgeLowPt.y) {
+            if (inPt.x === edgeLowPt.x) return true; // inPt is on contour ?
+            // continue;				// no intersection or edgeLowPt => doesn't count !!!
+          } else {
+            const perpEdge = edgeDy * (inPt.x - edgeLowPt.x) - edgeDx * (inPt.y - edgeLowPt.y);
+            if (perpEdge === 0) return true; // inPt is on contour ?
+
+            if (perpEdge < 0) continue;
+            inside = !inside; // true intersection left of inPt
+          }
+        } else {
+          // parallel or collinear
+          if (inPt.y !== edgeLowPt.y) continue; // parallel
+          // edge lies on the same horizontal line as inPt
+
+          if (edgeHighPt.x <= inPt.x && inPt.x <= edgeLowPt.x || edgeLowPt.x <= inPt.x && inPt.x <= edgeHighPt.x) return true; // inPt: Point on contour !
+          // continue;
+        }
+      }
+
+      return inside;
+    }
+
+    const isClockWise = ShapeUtils.isClockWise;
+    const subPaths = this.subPaths;
+    if (subPaths.length === 0) return [];
+    if (noHoles === true) return toShapesNoHoles(subPaths);
+    let solid, tmpPath, tmpShape;
+    const shapes = [];
+
+    if (subPaths.length === 1) {
+      tmpPath = subPaths[0];
+      tmpShape = new Shape();
+      tmpShape.curves = tmpPath.curves;
+      shapes.push(tmpShape);
+      return shapes;
+    }
+
+    let holesFirst = !isClockWise(subPaths[0].getPoints());
+    holesFirst = isCCW ? !holesFirst : holesFirst; // console.log("Holes first", holesFirst);
+
+    const betterShapeHoles = [];
+    const newShapes = [];
+    let newShapeHoles = [];
+    let mainIdx = 0;
+    let tmpPoints;
+    newShapes[mainIdx] = undefined;
+    newShapeHoles[mainIdx] = [];
+
+    for (let i = 0, l = subPaths.length; i < l; i++) {
+      tmpPath = subPaths[i];
+      tmpPoints = tmpPath.getPoints();
+      solid = isClockWise(tmpPoints);
+      solid = isCCW ? !solid : solid;
+
+      if (solid) {
+        if (!holesFirst && newShapes[mainIdx]) mainIdx++;
+        newShapes[mainIdx] = {
+          s: new Shape(),
+          p: tmpPoints
+        };
+        newShapes[mainIdx].s.curves = tmpPath.curves;
+        if (holesFirst) mainIdx++;
+        newShapeHoles[mainIdx] = []; //console.log('cw', i);
+      } else {
+        newShapeHoles[mainIdx].push({
+          h: tmpPath,
+          p: tmpPoints[0]
+        }); //console.log('ccw', i);
+      }
+    } // only Holes? -> probably all Shapes with wrong orientation
+
+
+    if (!newShapes[0]) return toShapesNoHoles(subPaths);
+
+    if (newShapes.length > 1) {
+      let ambiguous = false;
+      const toChange = [];
+
+      for (let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx++) {
+        betterShapeHoles[sIdx] = [];
+      }
+
+      for (let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx++) {
+        const sho = newShapeHoles[sIdx];
+
+        for (let hIdx = 0; hIdx < sho.length; hIdx++) {
+          const ho = sho[hIdx];
+          let hole_unassigned = true;
+
+          for (let s2Idx = 0; s2Idx < newShapes.length; s2Idx++) {
+            if (isPointInsidePolygon(ho.p, newShapes[s2Idx].p)) {
+              if (sIdx !== s2Idx) toChange.push({
+                froms: sIdx,
+                tos: s2Idx,
+                hole: hIdx
+              });
+
+              if (hole_unassigned) {
+                hole_unassigned = false;
+                betterShapeHoles[s2Idx].push(ho);
+              } else {
+                ambiguous = true;
+              }
+            }
+          }
+
+          if (hole_unassigned) {
+            betterShapeHoles[sIdx].push(ho);
+          }
+        }
+      } // console.log("ambiguous: ", ambiguous);
+
+
+      if (toChange.length > 0) {
+        // console.log("to change: ", toChange);
+        if (!ambiguous) newShapeHoles = betterShapeHoles;
+      }
+    }
+
+    let tmpHoles;
+
+    for (let i = 0, il = newShapes.length; i < il; i++) {
+      tmpShape = newShapes[i].s;
+      shapes.push(tmpShape);
+      tmpHoles = newShapeHoles[i];
+
+      for (let j = 0, jl = tmpHoles.length; j < jl; j++) {
+        tmpShape.holes.push(tmpHoles[j].h);
+      }
+    } //console.log("shape", shapes);
+
+
+    return shapes;
+  }
+
+}
+
+exports.ShapePath = ShapePath;
+
+class Font {
+  constructor(data) {
+    this.type = 'Font';
+    this.data = data;
+  }
+
+  generateShapes(text, size = 100) {
+    const shapes = [];
+    const paths = createPaths(text, size, this.data);
+
+    for (let p = 0, pl = paths.length; p < pl; p++) {
+      Array.prototype.push.apply(shapes, paths[p].toShapes());
+    }
+
+    return shapes;
+  }
+
+}
+
+exports.Font = Font;
+
+function createPaths(text, size, data) {
+  const chars = Array.from(text);
+  const scale = size / data.resolution;
+  const line_height = (data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness) * scale;
+  const paths = [];
+  let offsetX = 0,
+      offsetY = 0;
+
+  for (let i = 0; i < chars.length; i++) {
+    const char = chars[i];
+
+    if (char === '\n') {
+      offsetX = 0;
+      offsetY -= line_height;
+    } else {
+      const ret = createPath(char, scale, offsetX, offsetY, data);
+      offsetX += ret.offsetX;
+      paths.push(ret.path);
+    }
+  }
+
+  return paths;
+}
+
+function createPath(char, scale, offsetX, offsetY, data) {
+  const glyph = data.glyphs[char] || data.glyphs['?'];
+
+  if (!glyph) {
+    console.error('THREE.Font: character "' + char + '" does not exists in font family ' + data.familyName + '.');
+    return;
+  }
+
+  const path = new ShapePath();
+  let x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2;
+
+  if (glyph.o) {
+    const outline = glyph._cachedOutline || (glyph._cachedOutline = glyph.o.split(' '));
+
+    for (let i = 0, l = outline.length; i < l;) {
+      const action = outline[i++];
+
+      switch (action) {
+        case 'm':
+          // moveTo
+          x = outline[i++] * scale + offsetX;
+          y = outline[i++] * scale + offsetY;
+          path.moveTo(x, y);
+          break;
+
+        case 'l':
+          // lineTo
+          x = outline[i++] * scale + offsetX;
+          y = outline[i++] * scale + offsetY;
+          path.lineTo(x, y);
+          break;
+
+        case 'q':
+          // quadraticCurveTo
+          cpx = outline[i++] * scale + offsetX;
+          cpy = outline[i++] * scale + offsetY;
+          cpx1 = outline[i++] * scale + offsetX;
+          cpy1 = outline[i++] * scale + offsetY;
+          path.quadraticCurveTo(cpx1, cpy1, cpx, cpy);
+          break;
+
+        case 'b':
+          // bezierCurveTo
+          cpx = outline[i++] * scale + offsetX;
+          cpy = outline[i++] * scale + offsetY;
+          cpx1 = outline[i++] * scale + offsetX;
+          cpy1 = outline[i++] * scale + offsetY;
+          cpx2 = outline[i++] * scale + offsetX;
+          cpy2 = outline[i++] * scale + offsetY;
+          path.bezierCurveTo(cpx1, cpy1, cpx2, cpy2, cpx, cpy);
+          break;
+      }
+    }
+  }
+
+  return {
+    offsetX: glyph.ha * scale,
+    path: path
+  };
+}
+
+Font.prototype.isFont = true;
+
+class FontLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+  }
+
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const loader = new FileLoader(this.manager);
+    loader.setPath(this.path);
+    loader.setRequestHeader(this.requestHeader);
+    loader.setWithCredentials(scope.withCredentials);
+    loader.load(url, function (text) {
+      let json;
+
+      try {
+        json = JSON.parse(text);
+      } catch (e) {
+        console.warn('THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.');
+        json = JSON.parse(text.substring(65, text.length - 2));
+      }
+
+      const font = scope.parse(json);
+      if (onLoad) onLoad(font);
+    }, onProgress, onError);
+  }
+
+  parse(json) {
+    return new Font(json);
+  }
+
+}
+
+exports.FontLoader = FontLoader;
+
+let _context;
+
+const AudioContext = {
+  getContext: function () {
+    if (_context === undefined) {
+      _context = new (window.AudioContext || window.webkitAudioContext)();
+    }
+
+    return _context;
+  },
+  setContext: function (value) {
+    _context = value;
+  }
+};
+exports.AudioContext = AudioContext;
+
+class AudioLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+  }
+
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const loader = new FileLoader(this.manager);
+    loader.setResponseType('arraybuffer');
+    loader.setPath(this.path);
+    loader.setRequestHeader(this.requestHeader);
+    loader.setWithCredentials(this.withCredentials);
+    loader.load(url, function (buffer) {
+      try {
+        // Create a copy of the buffer. The `decodeAudioData` method
+        // detaches the buffer when complete, preventing reuse.
+        const bufferCopy = buffer.slice(0);
+        const context = AudioContext.getContext();
+        context.decodeAudioData(bufferCopy, function (audioBuffer) {
+          onLoad(audioBuffer);
+        });
+      } catch (e) {
+        if (onError) {
+          onError(e);
+        } else {
+          console.error(e);
+        }
+
+        scope.manager.itemError(url);
+      }
+    }, onProgress, onError);
+  }
+
+}
+
+exports.AudioLoader = AudioLoader;
+
+class HemisphereLightProbe extends LightProbe {
+  constructor(skyColor, groundColor, intensity = 1) {
+    super(undefined, intensity);
+    const color1 = new Color().set(skyColor);
+    const color2 = new Color().set(groundColor);
+    const sky = new Vector3(color1.r, color1.g, color1.b);
+    const ground = new Vector3(color2.r, color2.g, color2.b); // without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI );
+
+    const c0 = Math.sqrt(Math.PI);
+    const c1 = c0 * Math.sqrt(0.75);
+    this.sh.coefficients[0].copy(sky).add(ground).multiplyScalar(c0);
+    this.sh.coefficients[1].copy(sky).sub(ground).multiplyScalar(c1);
+  }
+
+}
+
+exports.HemisphereLightProbe = HemisphereLightProbe;
+HemisphereLightProbe.prototype.isHemisphereLightProbe = true;
+
+class AmbientLightProbe extends LightProbe {
+  constructor(color, intensity = 1) {
+    super(undefined, intensity);
+    const color1 = new Color().set(color); // without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI );
+
+    this.sh.coefficients[0].set(color1.r, color1.g, color1.b).multiplyScalar(2 * Math.sqrt(Math.PI));
+  }
+
+}
+
+exports.AmbientLightProbe = AmbientLightProbe;
+AmbientLightProbe.prototype.isAmbientLightProbe = true;
+
+const _eyeRight = new Matrix4();
+
+const _eyeLeft = new Matrix4();
+
+class StereoCamera {
+  constructor() {
+    this.type = 'StereoCamera';
+    this.aspect = 1;
+    this.eyeSep = 0.064;
+    this.cameraL = new PerspectiveCamera();
+    this.cameraL.layers.enable(1);
+    this.cameraL.matrixAutoUpdate = false;
+    this.cameraR = new PerspectiveCamera();
+    this.cameraR.layers.enable(2);
+    this.cameraR.matrixAutoUpdate = false;
+    this._cache = {
+      focus: null,
+      fov: null,
+      aspect: null,
+      near: null,
+      far: null,
+      zoom: null,
+      eyeSep: null
+    };
+  }
+
+  update(camera) {
+    const cache = this._cache;
+    const needsUpdate = cache.focus !== camera.focus || cache.fov !== camera.fov || cache.aspect !== camera.aspect * this.aspect || cache.near !== camera.near || cache.far !== camera.far || cache.zoom !== camera.zoom || cache.eyeSep !== this.eyeSep;
+
+    if (needsUpdate) {
+      cache.focus = camera.focus;
+      cache.fov = camera.fov;
+      cache.aspect = camera.aspect * this.aspect;
+      cache.near = camera.near;
+      cache.far = camera.far;
+      cache.zoom = camera.zoom;
+      cache.eyeSep = this.eyeSep; // Off-axis stereoscopic effect based on
+      // http://paulbourke.net/stereographics/stereorender/
+
+      const projectionMatrix = camera.projectionMatrix.clone();
+      const eyeSepHalf = cache.eyeSep / 2;
+      const eyeSepOnProjection = eyeSepHalf * cache.near / cache.focus;
+      const ymax = cache.near * Math.tan(MathUtils.DEG2RAD * cache.fov * 0.5) / cache.zoom;
+      let xmin, xmax; // translate xOffset
+
+      _eyeLeft.elements[12] = -eyeSepHalf;
+      _eyeRight.elements[12] = eyeSepHalf; // for left eye
+
+      xmin = -ymax * cache.aspect + eyeSepOnProjection;
+      xmax = ymax * cache.aspect + eyeSepOnProjection;
+      projectionMatrix.elements[0] = 2 * cache.near / (xmax - xmin);
+      projectionMatrix.elements[8] = (xmax + xmin) / (xmax - xmin);
+      this.cameraL.projectionMatrix.copy(projectionMatrix); // for right eye
+
+      xmin = -ymax * cache.aspect - eyeSepOnProjection;
+      xmax = ymax * cache.aspect - eyeSepOnProjection;
+      projectionMatrix.elements[0] = 2 * cache.near / (xmax - xmin);
+      projectionMatrix.elements[8] = (xmax + xmin) / (xmax - xmin);
+      this.cameraR.projectionMatrix.copy(projectionMatrix);
+    }
+
+    this.cameraL.matrixWorld.copy(camera.matrixWorld).multiply(_eyeLeft);
+    this.cameraR.matrixWorld.copy(camera.matrixWorld).multiply(_eyeRight);
+  }
+
+}
+
+exports.StereoCamera = StereoCamera;
+
+class Clock {
+  constructor(autoStart) {
+    this.autoStart = autoStart !== undefined ? autoStart : true;
+    this.startTime = 0;
+    this.oldTime = 0;
+    this.elapsedTime = 0;
+    this.running = false;
+  }
+
+  start() {
+    this.startTime = now();
+    this.oldTime = this.startTime;
+    this.elapsedTime = 0;
+    this.running = true;
+  }
+
+  stop() {
+    this.getElapsedTime();
+    this.running = false;
+    this.autoStart = false;
+  }
+
+  getElapsedTime() {
+    this.getDelta();
+    return this.elapsedTime;
+  }
+
+  getDelta() {
+    let diff = 0;
+
+    if (this.autoStart && !this.running) {
+      this.start();
+      return 0;
+    }
+
+    if (this.running) {
+      const newTime = now();
+      diff = (newTime - this.oldTime) / 1000;
+      this.oldTime = newTime;
+      this.elapsedTime += diff;
+    }
+
+    return diff;
+  }
+
+}
+
+exports.Clock = Clock;
+
+function now() {
+  return (typeof performance === 'undefined' ? Date : performance).now(); // see #10732
+}
+
+const _position$2 =
+/*@__PURE__*/
+new Vector3();
+
+const _quaternion$3 =
+/*@__PURE__*/
+new Quaternion();
+
+const _scale$1 =
+/*@__PURE__*/
+new Vector3();
+
+const _orientation =
+/*@__PURE__*/
+new Vector3();
+
+class AudioListener extends Object3D {
+  constructor() {
+    super();
+    this.type = 'AudioListener';
+    this.context = AudioContext.getContext();
+    this.gain = this.context.createGain();
+    this.gain.connect(this.context.destination);
+    this.filter = null;
+    this.timeDelta = 0; // private
+
+    this._clock = new Clock();
+  }
+
+  getInput() {
+    return this.gain;
+  }
+
+  removeFilter() {
+    if (this.filter !== null) {
+      this.gain.disconnect(this.filter);
+      this.filter.disconnect(this.context.destination);
+      this.gain.connect(this.context.destination);
+      this.filter = null;
+    }
+
+    return this;
+  }
+
+  getFilter() {
+    return this.filter;
+  }
+
+  setFilter(value) {
+    if (this.filter !== null) {
+      this.gain.disconnect(this.filter);
+      this.filter.disconnect(this.context.destination);
+    } else {
+      this.gain.disconnect(this.context.destination);
+    }
+
+    this.filter = value;
+    this.gain.connect(this.filter);
+    this.filter.connect(this.context.destination);
+    return this;
+  }
+
+  getMasterVolume() {
+    return this.gain.gain.value;
+  }
+
+  setMasterVolume(value) {
+    this.gain.gain.setTargetAtTime(value, this.context.currentTime, 0.01);
+    return this;
+  }
+
+  updateMatrixWorld(force) {
+    super.updateMatrixWorld(force);
+    const listener = this.context.listener;
+    const up = this.up;
+    this.timeDelta = this._clock.getDelta();
+    this.matrixWorld.decompose(_position$2, _quaternion$3, _scale$1);
+
+    _orientation.set(0, 0, -1).applyQuaternion(_quaternion$3);
+
+    if (listener.positionX) {
+      // code path for Chrome (see #14393)
+      const endTime = this.context.currentTime + this.timeDelta;
+      listener.positionX.linearRampToValueAtTime(_position$2.x, endTime);
+      listener.positionY.linearRampToValueAtTime(_position$2.y, endTime);
+      listener.positionZ.linearRampToValueAtTime(_position$2.z, endTime);
+      listener.forwardX.linearRampToValueAtTime(_orientation.x, endTime);
+      listener.forwardY.linearRampToValueAtTime(_orientation.y, endTime);
+      listener.forwardZ.linearRampToValueAtTime(_orientation.z, endTime);
+      listener.upX.linearRampToValueAtTime(up.x, endTime);
+      listener.upY.linearRampToValueAtTime(up.y, endTime);
+      listener.upZ.linearRampToValueAtTime(up.z, endTime);
+    } else {
+      listener.setPosition(_position$2.x, _position$2.y, _position$2.z);
+      listener.setOrientation(_orientation.x, _orientation.y, _orientation.z, up.x, up.y, up.z);
+    }
+  }
+
+}
+
+exports.AudioListener = AudioListener;
+
+class Audio extends Object3D {
+  constructor(listener) {
+    super();
+    this.type = 'Audio';
+    this.listener = listener;
+    this.context = listener.context;
+    this.gain = this.context.createGain();
+    this.gain.connect(listener.getInput());
+    this.autoplay = false;
+    this.buffer = null;
+    this.detune = 0;
+    this.loop = false;
+    this.loopStart = 0;
+    this.loopEnd = 0;
+    this.offset = 0;
+    this.duration = undefined;
+    this.playbackRate = 1;
+    this.isPlaying = false;
+    this.hasPlaybackControl = true;
+    this.source = null;
+    this.sourceType = 'empty';
+    this._startedAt = 0;
+    this._progress = 0;
+    this._connected = false;
+    this.filters = [];
+  }
+
+  getOutput() {
+    return this.gain;
+  }
+
+  setNodeSource(audioNode) {
+    this.hasPlaybackControl = false;
+    this.sourceType = 'audioNode';
+    this.source = audioNode;
+    this.connect();
+    return this;
+  }
+
+  setMediaElementSource(mediaElement) {
+    this.hasPlaybackControl = false;
+    this.sourceType = 'mediaNode';
+    this.source = this.context.createMediaElementSource(mediaElement);
+    this.connect();
+    return this;
+  }
+
+  setMediaStreamSource(mediaStream) {
+    this.hasPlaybackControl = false;
+    this.sourceType = 'mediaStreamNode';
+    this.source = this.context.createMediaStreamSource(mediaStream);
+    this.connect();
+    return this;
+  }
+
+  setBuffer(audioBuffer) {
+    this.buffer = audioBuffer;
+    this.sourceType = 'buffer';
+    if (this.autoplay) this.play();
+    return this;
+  }
+
+  play(delay = 0) {
+    if (this.isPlaying === true) {
+      console.warn('THREE.Audio: Audio is already playing.');
+      return;
+    }
+
+    if (this.hasPlaybackControl === false) {
+      console.warn('THREE.Audio: this Audio has no playback control.');
+      return;
+    }
+
+    this._startedAt = this.context.currentTime + delay;
+    const source = this.context.createBufferSource();
+    source.buffer = this.buffer;
+    source.loop = this.loop;
+    source.loopStart = this.loopStart;
+    source.loopEnd = this.loopEnd;
+    source.onended = this.onEnded.bind(this);
+    source.start(this._startedAt, this._progress + this.offset, this.duration);
+    this.isPlaying = true;
+    this.source = source;
+    this.setDetune(this.detune);
+    this.setPlaybackRate(this.playbackRate);
+    return this.connect();
+  }
+
+  pause() {
+    if (this.hasPlaybackControl === false) {
+      console.warn('THREE.Audio: this Audio has no playback control.');
+      return;
+    }
+
+    if (this.isPlaying === true) {
+      // update current progress
+      this._progress += Math.max(this.context.currentTime - this._startedAt, 0) * this.playbackRate;
+
+      if (this.loop === true) {
+        // ensure _progress does not exceed duration with looped audios
+        this._progress = this._progress % (this.duration || this.buffer.duration);
+      }
+
+      this.source.stop();
+      this.source.onended = null;
+      this.isPlaying = false;
+    }
+
+    return this;
+  }
+
+  stop() {
+    if (this.hasPlaybackControl === false) {
+      console.warn('THREE.Audio: this Audio has no playback control.');
+      return;
+    }
+
+    this._progress = 0;
+    this.source.stop();
+    this.source.onended = null;
+    this.isPlaying = false;
+    return this;
+  }
+
+  connect() {
+    if (this.filters.length > 0) {
+      this.source.connect(this.filters[0]);
+
+      for (let i = 1, l = this.filters.length; i < l; i++) {
+        this.filters[i - 1].connect(this.filters[i]);
+      }
+
+      this.filters[this.filters.length - 1].connect(this.getOutput());
+    } else {
+      this.source.connect(this.getOutput());
+    }
+
+    this._connected = true;
+    return this;
+  }
+
+  disconnect() {
+    if (this.filters.length > 0) {
+      this.source.disconnect(this.filters[0]);
+
+      for (let i = 1, l = this.filters.length; i < l; i++) {
+        this.filters[i - 1].disconnect(this.filters[i]);
+      }
+
+      this.filters[this.filters.length - 1].disconnect(this.getOutput());
+    } else {
+      this.source.disconnect(this.getOutput());
+    }
+
+    this._connected = false;
+    return this;
+  }
+
+  getFilters() {
+    return this.filters;
+  }
+
+  setFilters(value) {
+    if (!value) value = [];
+
+    if (this._connected === true) {
+      this.disconnect();
+      this.filters = value.slice();
+      this.connect();
+    } else {
+      this.filters = value.slice();
+    }
+
+    return this;
+  }
+
+  setDetune(value) {
+    this.detune = value;
+    if (this.source.detune === undefined) return; // only set detune when available
+
+    if (this.isPlaying === true) {
+      this.source.detune.setTargetAtTime(this.detune, this.context.currentTime, 0.01);
+    }
+
+    return this;
+  }
+
+  getDetune() {
+    return this.detune;
+  }
+
+  getFilter() {
+    return this.getFilters()[0];
+  }
+
+  setFilter(filter) {
+    return this.setFilters(filter ? [filter] : []);
+  }
+
+  setPlaybackRate(value) {
+    if (this.hasPlaybackControl === false) {
+      console.warn('THREE.Audio: this Audio has no playback control.');
+      return;
+    }
+
+    this.playbackRate = value;
+
+    if (this.isPlaying === true) {
+      this.source.playbackRate.setTargetAtTime(this.playbackRate, this.context.currentTime, 0.01);
+    }
+
+    return this;
+  }
+
+  getPlaybackRate() {
+    return this.playbackRate;
+  }
+
+  onEnded() {
+    this.isPlaying = false;
+  }
+
+  getLoop() {
+    if (this.hasPlaybackControl === false) {
+      console.warn('THREE.Audio: this Audio has no playback control.');
+      return false;
+    }
+
+    return this.loop;
+  }
+
+  setLoop(value) {
+    if (this.hasPlaybackControl === false) {
+      console.warn('THREE.Audio: this Audio has no playback control.');
+      return;
+    }
+
+    this.loop = value;
+
+    if (this.isPlaying === true) {
+      this.source.loop = this.loop;
+    }
+
+    return this;
+  }
+
+  setLoopStart(value) {
+    this.loopStart = value;
+    return this;
+  }
+
+  setLoopEnd(value) {
+    this.loopEnd = value;
+    return this;
+  }
+
+  getVolume() {
+    return this.gain.gain.value;
+  }
+
+  setVolume(value) {
+    this.gain.gain.setTargetAtTime(value, this.context.currentTime, 0.01);
+    return this;
+  }
+
+}
+
+exports.Audio = Audio;
+
+const _position$3 =
+/*@__PURE__*/
+new Vector3();
+
+const _quaternion$4 =
+/*@__PURE__*/
+new Quaternion();
+
+const _scale$2 =
+/*@__PURE__*/
+new Vector3();
+
+const _orientation$1 =
+/*@__PURE__*/
+new Vector3();
+
+class PositionalAudio extends Audio {
+  constructor(listener) {
+    super(listener);
+    this.panner = this.context.createPanner();
+    this.panner.panningModel = 'HRTF';
+    this.panner.connect(this.gain);
+  }
+
+  getOutput() {
+    return this.panner;
+  }
+
+  getRefDistance() {
+    return this.panner.refDistance;
+  }
+
+  setRefDistance(value) {
+    this.panner.refDistance = value;
+    return this;
+  }
+
+  getRolloffFactor() {
+    return this.panner.rolloffFactor;
+  }
+
+  setRolloffFactor(value) {
+    this.panner.rolloffFactor = value;
+    return this;
+  }
+
+  getDistanceModel() {
+    return this.panner.distanceModel;
+  }
+
+  setDistanceModel(value) {
+    this.panner.distanceModel = value;
+    return this;
+  }
+
+  getMaxDistance() {
+    return this.panner.maxDistance;
+  }
+
+  setMaxDistance(value) {
+    this.panner.maxDistance = value;
+    return this;
+  }
+
+  setDirectionalCone(coneInnerAngle, coneOuterAngle, coneOuterGain) {
+    this.panner.coneInnerAngle = coneInnerAngle;
+    this.panner.coneOuterAngle = coneOuterAngle;
+    this.panner.coneOuterGain = coneOuterGain;
+    return this;
+  }
+
+  updateMatrixWorld(force) {
+    super.updateMatrixWorld(force);
+    if (this.hasPlaybackControl === true && this.isPlaying === false) return;
+    this.matrixWorld.decompose(_position$3, _quaternion$4, _scale$2);
+
+    _orientation$1.set(0, 0, 1).applyQuaternion(_quaternion$4);
+
+    const panner = this.panner;
+
+    if (panner.positionX) {
+      // code path for Chrome and Firefox (see #14393)
+      const endTime = this.context.currentTime + this.listener.timeDelta;
+      panner.positionX.linearRampToValueAtTime(_position$3.x, endTime);
+      panner.positionY.linearRampToValueAtTime(_position$3.y, endTime);
+      panner.positionZ.linearRampToValueAtTime(_position$3.z, endTime);
+      panner.orientationX.linearRampToValueAtTime(_orientation$1.x, endTime);
+      panner.orientationY.linearRampToValueAtTime(_orientation$1.y, endTime);
+      panner.orientationZ.linearRampToValueAtTime(_orientation$1.z, endTime);
+    } else {
+      panner.setPosition(_position$3.x, _position$3.y, _position$3.z);
+      panner.setOrientation(_orientation$1.x, _orientation$1.y, _orientation$1.z);
+    }
+  }
+
+}
+
+exports.PositionalAudio = PositionalAudio;
+
+class AudioAnalyser {
+  constructor(audio, fftSize = 2048) {
+    this.analyser = audio.context.createAnalyser();
+    this.analyser.fftSize = fftSize;
+    this.data = new Uint8Array(this.analyser.frequencyBinCount);
+    audio.getOutput().connect(this.analyser);
+  }
+
+  getFrequencyData() {
+    this.analyser.getByteFrequencyData(this.data);
+    return this.data;
+  }
+
+  getAverageFrequency() {
+    let value = 0;
+    const data = this.getFrequencyData();
+
+    for (let i = 0; i < data.length; i++) {
+      value += data[i];
+    }
+
+    return value / data.length;
+  }
+
+}
+
+exports.AudioAnalyser = AudioAnalyser;
+
+class PropertyMixer {
+  constructor(binding, typeName, valueSize) {
+    this.binding = binding;
+    this.valueSize = valueSize;
+    let mixFunction, mixFunctionAdditive, setIdentity; // buffer layout: [ incoming | accu0 | accu1 | orig | addAccu | (optional work) ]
+    //
+    // interpolators can use .buffer as their .result
+    // the data then goes to 'incoming'
+    //
+    // 'accu0' and 'accu1' are used frame-interleaved for
+    // the cumulative result and are compared to detect
+    // changes
+    //
+    // 'orig' stores the original state of the property
+    //
+    // 'add' is used for additive cumulative results
+    //
+    // 'work' is optional and is only present for quaternion types. It is used
+    // to store intermediate quaternion multiplication results
+
+    switch (typeName) {
+      case 'quaternion':
+        mixFunction = this._slerp;
+        mixFunctionAdditive = this._slerpAdditive;
+        setIdentity = this._setAdditiveIdentityQuaternion;
+        this.buffer = new Float64Array(valueSize * 6);
+        this._workIndex = 5;
+        break;
+
+      case 'string':
+      case 'bool':
+        mixFunction = this._select; // Use the regular mix function and for additive on these types,
+        // additive is not relevant for non-numeric types
+
+        mixFunctionAdditive = this._select;
+        setIdentity = this._setAdditiveIdentityOther;
+        this.buffer = new Array(valueSize * 5);
+        break;
+
+      default:
+        mixFunction = this._lerp;
+        mixFunctionAdditive = this._lerpAdditive;
+        setIdentity = this._setAdditiveIdentityNumeric;
+        this.buffer = new Float64Array(valueSize * 5);
+    }
+
+    this._mixBufferRegion = mixFunction;
+    this._mixBufferRegionAdditive = mixFunctionAdditive;
+    this._setIdentity = setIdentity;
+    this._origIndex = 3;
+    this._addIndex = 4;
+    this.cumulativeWeight = 0;
+    this.cumulativeWeightAdditive = 0;
+    this.useCount = 0;
+    this.referenceCount = 0;
+  } // accumulate data in the 'incoming' region into 'accu<i>'
+
+
+  accumulate(accuIndex, weight) {
+    // note: happily accumulating nothing when weight = 0, the caller knows
+    // the weight and shouldn't have made the call in the first place
+    const buffer = this.buffer,
+          stride = this.valueSize,
+          offset = accuIndex * stride + stride;
+    let currentWeight = this.cumulativeWeight;
+
+    if (currentWeight === 0) {
+      // accuN := incoming * weight
+      for (let i = 0; i !== stride; ++i) {
+        buffer[offset + i] = buffer[i];
+      }
+
+      currentWeight = weight;
+    } else {
+      // accuN := accuN + incoming * weight
+      currentWeight += weight;
+      const mix = weight / currentWeight;
+
+      this._mixBufferRegion(buffer, offset, 0, mix, stride);
+    }
+
+    this.cumulativeWeight = currentWeight;
+  } // accumulate data in the 'incoming' region into 'add'
+
+
+  accumulateAdditive(weight) {
+    const buffer = this.buffer,
+          stride = this.valueSize,
+          offset = stride * this._addIndex;
+
+    if (this.cumulativeWeightAdditive === 0) {
+      // add = identity
+      this._setIdentity();
+    } // add := add + incoming * weight
+
+
+    this._mixBufferRegionAdditive(buffer, offset, 0, weight, stride);
+
+    this.cumulativeWeightAdditive += weight;
+  } // apply the state of 'accu<i>' to the binding when accus differ
+
+
+  apply(accuIndex) {
+    const stride = this.valueSize,
+          buffer = this.buffer,
+          offset = accuIndex * stride + stride,
+          weight = this.cumulativeWeight,
+          weightAdditive = this.cumulativeWeightAdditive,
+          binding = this.binding;
+    this.cumulativeWeight = 0;
+    this.cumulativeWeightAdditive = 0;
+
+    if (weight < 1) {
+      // accuN := accuN + original * ( 1 - cumulativeWeight )
+      const originalValueOffset = stride * this._origIndex;
+
+      this._mixBufferRegion(buffer, offset, originalValueOffset, 1 - weight, stride);
+    }
+
+    if (weightAdditive > 0) {
+      // accuN := accuN + additive accuN
+      this._mixBufferRegionAdditive(buffer, offset, this._addIndex * stride, 1, stride);
+    }
+
+    for (let i = stride, e = stride + stride; i !== e; ++i) {
+      if (buffer[i] !== buffer[i + stride]) {
+        // value has changed -> update scene graph
+        binding.setValue(buffer, offset);
+        break;
+      }
+    }
+  } // remember the state of the bound property and copy it to both accus
+
+
+  saveOriginalState() {
+    const binding = this.binding;
+    const buffer = this.buffer,
+          stride = this.valueSize,
+          originalValueOffset = stride * this._origIndex;
+    binding.getValue(buffer, originalValueOffset); // accu[0..1] := orig -- initially detect changes against the original
+
+    for (let i = stride, e = originalValueOffset; i !== e; ++i) {
+      buffer[i] = buffer[originalValueOffset + i % stride];
+    } // Add to identity for additive
+
+
+    this._setIdentity();
+
+    this.cumulativeWeight = 0;
+    this.cumulativeWeightAdditive = 0;
+  } // apply the state previously taken via 'saveOriginalState' to the binding
+
+
+  restoreOriginalState() {
+    const originalValueOffset = this.valueSize * 3;
+    this.binding.setValue(this.buffer, originalValueOffset);
+  }
+
+  _setAdditiveIdentityNumeric() {
+    const startIndex = this._addIndex * this.valueSize;
+    const endIndex = startIndex + this.valueSize;
+
+    for (let i = startIndex; i < endIndex; i++) {
+      this.buffer[i] = 0;
+    }
+  }
+
+  _setAdditiveIdentityQuaternion() {
+    this._setAdditiveIdentityNumeric();
+
+    this.buffer[this._addIndex * this.valueSize + 3] = 1;
+  }
+
+  _setAdditiveIdentityOther() {
+    const startIndex = this._origIndex * this.valueSize;
+    const targetIndex = this._addIndex * this.valueSize;
+
+    for (let i = 0; i < this.valueSize; i++) {
+      this.buffer[targetIndex + i] = this.buffer[startIndex + i];
+    }
+  } // mix functions
+
+
+  _select(buffer, dstOffset, srcOffset, t, stride) {
+    if (t >= 0.5) {
+      for (let i = 0; i !== stride; ++i) {
+        buffer[dstOffset + i] = buffer[srcOffset + i];
+      }
+    }
+  }
+
+  _slerp(buffer, dstOffset, srcOffset, t) {
+    Quaternion.slerpFlat(buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t);
+  }
+
+  _slerpAdditive(buffer, dstOffset, srcOffset, t, stride) {
+    const workOffset = this._workIndex * stride; // Store result in intermediate buffer offset
+
+    Quaternion.multiplyQuaternionsFlat(buffer, workOffset, buffer, dstOffset, buffer, srcOffset); // Slerp to the intermediate result
+
+    Quaternion.slerpFlat(buffer, dstOffset, buffer, dstOffset, buffer, workOffset, t);
+  }
+
+  _lerp(buffer, dstOffset, srcOffset, t, stride) {
+    const s = 1 - t;
+
+    for (let i = 0; i !== stride; ++i) {
+      const j = dstOffset + i;
+      buffer[j] = buffer[j] * s + buffer[srcOffset + i] * t;
+    }
+  }
+
+  _lerpAdditive(buffer, dstOffset, srcOffset, t, stride) {
+    for (let i = 0; i !== stride; ++i) {
+      const j = dstOffset + i;
+      buffer[j] = buffer[j] + buffer[srcOffset + i] * t;
+    }
+  }
+
+} // Characters [].:/ are reserved for track binding syntax.
+
+
+exports.PropertyMixer = PropertyMixer;
+const _RESERVED_CHARS_RE = '\\[\\]\\.:\\/';
+
+const _reservedRe = new RegExp('[' + _RESERVED_CHARS_RE + ']', 'g'); // Attempts to allow node names from any language. ES5's `\w` regexp matches
+// only latin characters, and the unicode \p{L} is not yet supported. So
+// instead, we exclude reserved characters and match everything else.
+
+
+const _wordChar = '[^' + _RESERVED_CHARS_RE + ']';
+
+const _wordCharOrDot = '[^' + _RESERVED_CHARS_RE.replace('\\.', '') + ']'; // Parent directories, delimited by '/' or ':'. Currently unused, but must
+// be matched to parse the rest of the track name.
+
+
+const _directoryRe = /((?:WC+[\/:])*)/.source.replace('WC', _wordChar); // Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
+
+
+const _nodeRe = /(WCOD+)?/.source.replace('WCOD', _wordCharOrDot); // Object on target node, and accessor. May not contain reserved
+// characters. Accessor may contain any character except closing bracket.
+
+
+const _objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace('WC', _wordChar); // Property and accessor. May not contain reserved characters. Accessor may
+// contain any non-bracket characters.
+
+
+const _propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace('WC', _wordChar);
+
+const _trackRe = new RegExp('' + '^' + _directoryRe + _nodeRe + _objectRe + _propertyRe + '$');
+
+const _supportedObjectNames = ['material', 'materials', 'bones'];
+
+function Composite(targetGroup, path, optionalParsedPath) {
+  const parsedPath = optionalParsedPath || PropertyBinding.parseTrackName(path);
+  this._targetGroup = targetGroup;
+  this._bindings = targetGroup.subscribe_(path, parsedPath);
+}
+
+Object.assign(Composite.prototype, {
+  getValue: function (array, offset) {
+    this.bind(); // bind all binding
+
+    const firstValidIndex = this._targetGroup.nCachedObjects_,
+          binding = this._bindings[firstValidIndex]; // and only call .getValue on the first
+
+    if (binding !== undefined) binding.getValue(array, offset);
+  },
+  setValue: function (array, offset) {
+    const bindings = this._bindings;
+
+    for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
+      bindings[i].setValue(array, offset);
+    }
+  },
+  bind: function () {
+    const bindings = this._bindings;
+
+    for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
+      bindings[i].bind();
+    }
+  },
+  unbind: function () {
+    const bindings = this._bindings;
+
+    for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
+      bindings[i].unbind();
+    }
+  }
+});
+
+function PropertyBinding(rootNode, path, parsedPath) {
+  this.path = path;
+  this.parsedPath = parsedPath || PropertyBinding.parseTrackName(path);
+  this.node = PropertyBinding.findNode(rootNode, this.parsedPath.nodeName) || rootNode;
+  this.rootNode = rootNode;
+}
+
+Object.assign(PropertyBinding, {
+  Composite: Composite,
+  create: function (root, path, parsedPath) {
+    if (!(root && root.isAnimationObjectGroup)) {
+      return new PropertyBinding(root, path, parsedPath);
+    } else {
+      return new PropertyBinding.Composite(root, path, parsedPath);
+    }
+  },
+
+  /**
+   * Replaces spaces with underscores and removes unsupported characters from
+   * node names, to ensure compatibility with parseTrackName().
+   *
+   * @param {string} name Node name to be sanitized.
+   * @return {string}
+   */
+  sanitizeNodeName: function (name) {
+    return name.replace(/\s/g, '_').replace(_reservedRe, '');
+  },
+  parseTrackName: function (trackName) {
+    const matches = _trackRe.exec(trackName);
+
+    if (!matches) {
+      throw new Error('PropertyBinding: Cannot parse trackName: ' + trackName);
+    }
+
+    const results = {
+      // directoryName: matches[ 1 ], // (tschw) currently unused
+      nodeName: matches[2],
+      objectName: matches[3],
+      objectIndex: matches[4],
+      propertyName: matches[5],
+      // required
+      propertyIndex: matches[6]
+    };
+    const lastDot = results.nodeName && results.nodeName.lastIndexOf('.');
+
+    if (lastDot !== undefined && lastDot !== -1) {
+      const objectName = results.nodeName.substring(lastDot + 1); // Object names must be checked against an allowlist. Otherwise, there
+      // is no way to parse 'foo.bar.baz': 'baz' must be a property, but
+      // 'bar' could be the objectName, or part of a nodeName (which can
+      // include '.' characters).
+
+      if (_supportedObjectNames.indexOf(objectName) !== -1) {
+        results.nodeName = results.nodeName.substring(0, lastDot);
+        results.objectName = objectName;
+      }
+    }
+
+    if (results.propertyName === null || results.propertyName.length === 0) {
+      throw new Error('PropertyBinding: can not parse propertyName from trackName: ' + trackName);
+    }
+
+    return results;
+  },
+  findNode: function (root, nodeName) {
+    if (!nodeName || nodeName === '' || nodeName === '.' || nodeName === -1 || nodeName === root.name || nodeName === root.uuid) {
+      return root;
+    } // search into skeleton bones.
+
+
+    if (root.skeleton) {
+      const bone = root.skeleton.getBoneByName(nodeName);
+
+      if (bone !== undefined) {
+        return bone;
+      }
+    } // search into node subtree.
+
+
+    if (root.children) {
+      const searchNodeSubtree = function (children) {
+        for (let i = 0; i < children.length; i++) {
+          const childNode = children[i];
+
+          if (childNode.name === nodeName || childNode.uuid === nodeName) {
+            return childNode;
+          }
+
+          const result = searchNodeSubtree(childNode.children);
+          if (result) return result;
+        }
+
+        return null;
+      };
+
+      const subTreeNode = searchNodeSubtree(root.children);
+
+      if (subTreeNode) {
+        return subTreeNode;
+      }
+    }
+
+    return null;
+  }
+});
+Object.assign(PropertyBinding.prototype, {
+  // prototype, continued
+  // these are used to "bind" a nonexistent property
+  _getValue_unavailable: function () {},
+  _setValue_unavailable: function () {},
+  BindingType: {
+    Direct: 0,
+    EntireArray: 1,
+    ArrayElement: 2,
+    HasFromToArray: 3
+  },
+  Versioning: {
+    None: 0,
+    NeedsUpdate: 1,
+    MatrixWorldNeedsUpdate: 2
+  },
+  GetterByBindingType: [function getValue_direct(buffer, offset) {
+    buffer[offset] = this.node[this.propertyName];
+  }, function getValue_array(buffer, offset) {
+    const source = this.resolvedProperty;
+
+    for (let i = 0, n = source.length; i !== n; ++i) {
+      buffer[offset++] = source[i];
+    }
+  }, function getValue_arrayElement(buffer, offset) {
+    buffer[offset] = this.resolvedProperty[this.propertyIndex];
+  }, function getValue_toArray(buffer, offset) {
+    this.resolvedProperty.toArray(buffer, offset);
+  }],
+  SetterByBindingTypeAndVersioning: [[// Direct
+  function setValue_direct(buffer, offset) {
+    this.targetObject[this.propertyName] = buffer[offset];
+  }, function setValue_direct_setNeedsUpdate(buffer, offset) {
+    this.targetObject[this.propertyName] = buffer[offset];
+    this.targetObject.needsUpdate = true;
+  }, function setValue_direct_setMatrixWorldNeedsUpdate(buffer, offset) {
+    this.targetObject[this.propertyName] = buffer[offset];
+    this.targetObject.matrixWorldNeedsUpdate = true;
+  }], [// EntireArray
+  function setValue_array(buffer, offset) {
+    const dest = this.resolvedProperty;
+
+    for (let i = 0, n = dest.length; i !== n; ++i) {
+      dest[i] = buffer[offset++];
+    }
+  }, function setValue_array_setNeedsUpdate(buffer, offset) {
+    const dest = this.resolvedProperty;
+
+    for (let i = 0, n = dest.length; i !== n; ++i) {
+      dest[i] = buffer[offset++];
+    }
+
+    this.targetObject.needsUpdate = true;
+  }, function setValue_array_setMatrixWorldNeedsUpdate(buffer, offset) {
+    const dest = this.resolvedProperty;
+
+    for (let i = 0, n = dest.length; i !== n; ++i) {
+      dest[i] = buffer[offset++];
+    }
+
+    this.targetObject.matrixWorldNeedsUpdate = true;
+  }], [// ArrayElement
+  function setValue_arrayElement(buffer, offset) {
+    this.resolvedProperty[this.propertyIndex] = buffer[offset];
+  }, function setValue_arrayElement_setNeedsUpdate(buffer, offset) {
+    this.resolvedProperty[this.propertyIndex] = buffer[offset];
+    this.targetObject.needsUpdate = true;
+  }, function setValue_arrayElement_setMatrixWorldNeedsUpdate(buffer, offset) {
+    this.resolvedProperty[this.propertyIndex] = buffer[offset];
+    this.targetObject.matrixWorldNeedsUpdate = true;
+  }], [// HasToFromArray
+  function setValue_fromArray(buffer, offset) {
+    this.resolvedProperty.fromArray(buffer, offset);
+  }, function setValue_fromArray_setNeedsUpdate(buffer, offset) {
+    this.resolvedProperty.fromArray(buffer, offset);
+    this.targetObject.needsUpdate = true;
+  }, function setValue_fromArray_setMatrixWorldNeedsUpdate(buffer, offset) {
+    this.resolvedProperty.fromArray(buffer, offset);
+    this.targetObject.matrixWorldNeedsUpdate = true;
+  }]],
+  getValue: function getValue_unbound(targetArray, offset) {
+    this.bind();
+    this.getValue(targetArray, offset); // Note: This class uses a State pattern on a per-method basis:
+    // 'bind' sets 'this.getValue' / 'setValue' and shadows the
+    // prototype version of these methods with one that represents
+    // the bound state. When the property is not found, the methods
+    // become no-ops.
+  },
+  setValue: function getValue_unbound(sourceArray, offset) {
+    this.bind();
+    this.setValue(sourceArray, offset);
+  },
+  // create getter / setter pair for a property in the scene graph
+  bind: function () {
+    let targetObject = this.node;
+    const parsedPath = this.parsedPath;
+    const objectName = parsedPath.objectName;
+    const propertyName = parsedPath.propertyName;
+    let propertyIndex = parsedPath.propertyIndex;
+
+    if (!targetObject) {
+      targetObject = PropertyBinding.findNode(this.rootNode, parsedPath.nodeName) || this.rootNode;
+      this.node = targetObject;
+    } // set fail state so we can just 'return' on error
+
+
+    this.getValue = this._getValue_unavailable;
+    this.setValue = this._setValue_unavailable; // ensure there is a value node
+
+    if (!targetObject) {
+      console.error('THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.');
+      return;
+    }
+
+    if (objectName) {
+      let objectIndex = parsedPath.objectIndex; // special cases were we need to reach deeper into the hierarchy to get the face materials....
+
+      switch (objectName) {
+        case 'materials':
+          if (!targetObject.material) {
+            console.error('THREE.PropertyBinding: Can not bind to material as node does not have a material.', this);
+            return;
+          }
+
+          if (!targetObject.material.materials) {
+            console.error('THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this);
+            return;
+          }
+
+          targetObject = targetObject.material.materials;
+          break;
+
+        case 'bones':
+          if (!targetObject.skeleton) {
+            console.error('THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this);
+            return;
+          } // potential future optimization: skip this if propertyIndex is already an integer
+          // and convert the integer string to a true integer.
+
+
+          targetObject = targetObject.skeleton.bones; // support resolving morphTarget names into indices.
+
+          for (let i = 0; i < targetObject.length; i++) {
+            if (targetObject[i].name === objectIndex) {
+              objectIndex = i;
+              break;
+            }
+          }
+
+          break;
+
+        default:
+          if (targetObject[objectName] === undefined) {
+            console.error('THREE.PropertyBinding: Can not bind to objectName of node undefined.', this);
+            return;
+          }
+
+          targetObject = targetObject[objectName];
+      }
+
+      if (objectIndex !== undefined) {
+        if (targetObject[objectIndex] === undefined) {
+          console.error('THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject);
+          return;
+        }
+
+        targetObject = targetObject[objectIndex];
+      }
+    } // resolve property
+
+
+    const nodeProperty = targetObject[propertyName];
+
+    if (nodeProperty === undefined) {
+      const nodeName = parsedPath.nodeName;
+      console.error('THREE.PropertyBinding: Trying to update property for track: ' + nodeName + '.' + propertyName + ' but it wasn\'t found.', targetObject);
+      return;
+    } // determine versioning scheme
+
+
+    let versioning = this.Versioning.None;
+    this.targetObject = targetObject;
+
+    if (targetObject.needsUpdate !== undefined) {
+      // material
+      versioning = this.Versioning.NeedsUpdate;
+    } else if (targetObject.matrixWorldNeedsUpdate !== undefined) {
+      // node transform
+      versioning = this.Versioning.MatrixWorldNeedsUpdate;
+    } // determine how the property gets bound
+
+
+    let bindingType = this.BindingType.Direct;
+
+    if (propertyIndex !== undefined) {
+      // access a sub element of the property array (only primitives are supported right now)
+      if (propertyName === 'morphTargetInfluences') {
+        // potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.
+        // support resolving morphTarget names into indices.
+        if (!targetObject.geometry) {
+          console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this);
+          return;
+        }
+
+        if (targetObject.geometry.isBufferGeometry) {
+          if (!targetObject.geometry.morphAttributes) {
+            console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this);
+            return;
+          }
+
+          if (targetObject.morphTargetDictionary[propertyIndex] !== undefined) {
+            propertyIndex = targetObject.morphTargetDictionary[propertyIndex];
+          }
+        } else {
+          console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.', this);
+          return;
+        }
+      }
+
+      bindingType = this.BindingType.ArrayElement;
+      this.resolvedProperty = nodeProperty;
+      this.propertyIndex = propertyIndex;
+    } else if (nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined) {
+      // must use copy for Object3D.Euler/Quaternion
+      bindingType = this.BindingType.HasFromToArray;
+      this.resolvedProperty = nodeProperty;
+    } else if (Array.isArray(nodeProperty)) {
+      bindingType = this.BindingType.EntireArray;
+      this.resolvedProperty = nodeProperty;
+    } else {
+      this.propertyName = propertyName;
+    } // select getter / setter
+
+
+    this.getValue = this.GetterByBindingType[bindingType];
+    this.setValue = this.SetterByBindingTypeAndVersioning[bindingType][versioning];
+  },
+  unbind: function () {
+    this.node = null; // back to the prototype version of getValue / setValue
+    // note: avoiding to mutate the shape of 'this' via 'delete'
+
+    this.getValue = this._getValue_unbound;
+    this.setValue = this._setValue_unbound;
+  }
+}); // DECLARE ALIAS AFTER assign prototype
+
+Object.assign(PropertyBinding.prototype, {
+  // initial state of these methods that calls 'bind'
+  _getValue_unbound: PropertyBinding.prototype.getValue,
+  _setValue_unbound: PropertyBinding.prototype.setValue
+});
+/**
+ *
+ * A group of objects that receives a shared animation state.
+ *
+ * Usage:
+ *
+ *  - Add objects you would otherwise pass as 'root' to the
+ *    constructor or the .clipAction method of AnimationMixer.
+ *
+ *  - Instead pass this object as 'root'.
+ *
+ *  - You can also add and remove objects later when the mixer
+ *    is running.
+ *
+ * Note:
+ *
+ *    Objects of this class appear as one object to the mixer,
+ *    so cache control of the individual objects must be done
+ *    on the group.
+ *
+ * Limitation:
+ *
+ *  - The animated properties must be compatible among the
+ *    all objects in the group.
+ *
+ *  - A single property can either be controlled through a
+ *    target group or directly, but not both.
+ */
+
+class AnimationObjectGroup {
+  constructor() {
+    this.uuid = MathUtils.generateUUID(); // cached objects followed by the active ones
+
+    this._objects = Array.prototype.slice.call(arguments);
+    this.nCachedObjects_ = 0; // threshold
+    // note: read by PropertyBinding.Composite
+
+    const indices = {};
+    this._indicesByUUID = indices; // for bookkeeping
+
+    for (let i = 0, n = arguments.length; i !== n; ++i) {
+      indices[arguments[i].uuid] = i;
+    }
+
+    this._paths = []; // inside: string
+
+    this._parsedPaths = []; // inside: { we don't care, here }
+
+    this._bindings = []; // inside: Array< PropertyBinding >
+
+    this._bindingsIndicesByPath = {}; // inside: indices in these arrays
+
+    const scope = this;
+    this.stats = {
+      objects: {
+        get total() {
+          return scope._objects.length;
+        },
+
+        get inUse() {
+          return this.total - scope.nCachedObjects_;
+        }
+
+      },
+
+      get bindingsPerObject() {
+        return scope._bindings.length;
+      }
+
+    };
+  }
+
+  add() {
+    const objects = this._objects,
+          indicesByUUID = this._indicesByUUID,
+          paths = this._paths,
+          parsedPaths = this._parsedPaths,
+          bindings = this._bindings,
+          nBindings = bindings.length;
+    let knownObject = undefined,
+        nObjects = objects.length,
+        nCachedObjects = this.nCachedObjects_;
+
+    for (let i = 0, n = arguments.length; i !== n; ++i) {
+      const object = arguments[i],
+            uuid = object.uuid;
+      let index = indicesByUUID[uuid];
+
+      if (index === undefined) {
+        // unknown object -> add it to the ACTIVE region
+        index = nObjects++;
+        indicesByUUID[uuid] = index;
+        objects.push(object); // accounting is done, now do the same for all bindings
+
+        for (let j = 0, m = nBindings; j !== m; ++j) {
+          bindings[j].push(new PropertyBinding(object, paths[j], parsedPaths[j]));
+        }
+      } else if (index < nCachedObjects) {
+        knownObject = objects[index]; // move existing object to the ACTIVE region
+
+        const firstActiveIndex = --nCachedObjects,
+              lastCachedObject = objects[firstActiveIndex];
+        indicesByUUID[lastCachedObject.uuid] = index;
+        objects[index] = lastCachedObject;
+        indicesByUUID[uuid] = firstActiveIndex;
+        objects[firstActiveIndex] = object; // accounting is done, now do the same for all bindings
+
+        for (let j = 0, m = nBindings; j !== m; ++j) {
+          const bindingsForPath = bindings[j],
+                lastCached = bindingsForPath[firstActiveIndex];
+          let binding = bindingsForPath[index];
+          bindingsForPath[index] = lastCached;
+
+          if (binding === undefined) {
+            // since we do not bother to create new bindings
+            // for objects that are cached, the binding may
+            // or may not exist
+            binding = new PropertyBinding(object, paths[j], parsedPaths[j]);
+          }
+
+          bindingsForPath[firstActiveIndex] = binding;
+        }
+      } else if (objects[index] !== knownObject) {
+        console.error('THREE.AnimationObjectGroup: Different objects with the same UUID ' + 'detected. Clean the caches or recreate your infrastructure when reloading scenes.');
+      } // else the object is already where we want it to be
+
+    } // for arguments
+
+
+    this.nCachedObjects_ = nCachedObjects;
+  }
+
+  remove() {
+    const objects = this._objects,
+          indicesByUUID = this._indicesByUUID,
+          bindings = this._bindings,
+          nBindings = bindings.length;
+    let nCachedObjects = this.nCachedObjects_;
+
+    for (let i = 0, n = arguments.length; i !== n; ++i) {
+      const object = arguments[i],
+            uuid = object.uuid,
+            index = indicesByUUID[uuid];
+
+      if (index !== undefined && index >= nCachedObjects) {
+        // move existing object into the CACHED region
+        const lastCachedIndex = nCachedObjects++,
+              firstActiveObject = objects[lastCachedIndex];
+        indicesByUUID[firstActiveObject.uuid] = index;
+        objects[index] = firstActiveObject;
+        indicesByUUID[uuid] = lastCachedIndex;
+        objects[lastCachedIndex] = object; // accounting is done, now do the same for all bindings
+
+        for (let j = 0, m = nBindings; j !== m; ++j) {
+          const bindingsForPath = bindings[j],
+                firstActive = bindingsForPath[lastCachedIndex],
+                binding = bindingsForPath[index];
+          bindingsForPath[index] = firstActive;
+          bindingsForPath[lastCachedIndex] = binding;
+        }
+      }
+    } // for arguments
+
+
+    this.nCachedObjects_ = nCachedObjects;
+  } // remove & forget
+
+
+  uncache() {
+    const objects = this._objects,
+          indicesByUUID = this._indicesByUUID,
+          bindings = this._bindings,
+          nBindings = bindings.length;
+    let nCachedObjects = this.nCachedObjects_,
+        nObjects = objects.length;
+
+    for (let i = 0, n = arguments.length; i !== n; ++i) {
+      const object = arguments[i],
+            uuid = object.uuid,
+            index = indicesByUUID[uuid];
+
+      if (index !== undefined) {
+        delete indicesByUUID[uuid];
+
+        if (index < nCachedObjects) {
+          // object is cached, shrink the CACHED region
+          const firstActiveIndex = --nCachedObjects,
+                lastCachedObject = objects[firstActiveIndex],
+                lastIndex = --nObjects,
+                lastObject = objects[lastIndex]; // last cached object takes this object's place
+
+          indicesByUUID[lastCachedObject.uuid] = index;
+          objects[index] = lastCachedObject; // last object goes to the activated slot and pop
+
+          indicesByUUID[lastObject.uuid] = firstActiveIndex;
+          objects[firstActiveIndex] = lastObject;
+          objects.pop(); // accounting is done, now do the same for all bindings
+
+          for (let j = 0, m = nBindings; j !== m; ++j) {
+            const bindingsForPath = bindings[j],
+                  lastCached = bindingsForPath[firstActiveIndex],
+                  last = bindingsForPath[lastIndex];
+            bindingsForPath[index] = lastCached;
+            bindingsForPath[firstActiveIndex] = last;
+            bindingsForPath.pop();
+          }
+        } else {
+          // object is active, just swap with the last and pop
+          const lastIndex = --nObjects,
+                lastObject = objects[lastIndex];
+
+          if (lastIndex > 0) {
+            indicesByUUID[lastObject.uuid] = index;
+          }
+
+          objects[index] = lastObject;
+          objects.pop(); // accounting is done, now do the same for all bindings
+
+          for (let j = 0, m = nBindings; j !== m; ++j) {
+            const bindingsForPath = bindings[j];
+            bindingsForPath[index] = bindingsForPath[lastIndex];
+            bindingsForPath.pop();
+          }
+        } // cached or active
+
+      } // if object is known
+
+    } // for arguments
+
+
+    this.nCachedObjects_ = nCachedObjects;
+  } // Internal interface used by befriended PropertyBinding.Composite:
+
+
+  subscribe_(path, parsedPath) {
+    // returns an array of bindings for the given path that is changed
+    // according to the contained objects in the group
+    const indicesByPath = this._bindingsIndicesByPath;
+    let index = indicesByPath[path];
+    const bindings = this._bindings;
+    if (index !== undefined) return bindings[index];
+    const paths = this._paths,
+          parsedPaths = this._parsedPaths,
+          objects = this._objects,
+          nObjects = objects.length,
+          nCachedObjects = this.nCachedObjects_,
+          bindingsForPath = new Array(nObjects);
+    index = bindings.length;
+    indicesByPath[path] = index;
+    paths.push(path);
+    parsedPaths.push(parsedPath);
+    bindings.push(bindingsForPath);
+
+    for (let i = nCachedObjects, n = objects.length; i !== n; ++i) {
+      const object = objects[i];
+      bindingsForPath[i] = new PropertyBinding(object, path, parsedPath);
+    }
+
+    return bindingsForPath;
+  }
+
+  unsubscribe_(path) {
+    // tells the group to forget about a property path and no longer
+    // update the array previously obtained with 'subscribe_'
+    const indicesByPath = this._bindingsIndicesByPath,
+          index = indicesByPath[path];
+
+    if (index !== undefined) {
+      const paths = this._paths,
+            parsedPaths = this._parsedPaths,
+            bindings = this._bindings,
+            lastBindingsIndex = bindings.length - 1,
+            lastBindings = bindings[lastBindingsIndex],
+            lastBindingsPath = path[lastBindingsIndex];
+      indicesByPath[lastBindingsPath] = index;
+      bindings[index] = lastBindings;
+      bindings.pop();
+      parsedPaths[index] = parsedPaths[lastBindingsIndex];
+      parsedPaths.pop();
+      paths[index] = paths[lastBindingsIndex];
+      paths.pop();
+    }
+  }
+
+}
+
+exports.AnimationObjectGroup = AnimationObjectGroup;
+AnimationObjectGroup.prototype.isAnimationObjectGroup = true;
+
+class AnimationAction {
+  constructor(mixer, clip, localRoot = null, blendMode = clip.blendMode) {
+    this._mixer = mixer;
+    this._clip = clip;
+    this._localRoot = localRoot;
+    this.blendMode = blendMode;
+    const tracks = clip.tracks,
+          nTracks = tracks.length,
+          interpolants = new Array(nTracks);
+    const interpolantSettings = {
+      endingStart: ZeroCurvatureEnding,
+      endingEnd: ZeroCurvatureEnding
+    };
+
+    for (let i = 0; i !== nTracks; ++i) {
+      const interpolant = tracks[i].createInterpolant(null);
+      interpolants[i] = interpolant;
+      interpolant.settings = interpolantSettings;
+    }
+
+    this._interpolantSettings = interpolantSettings;
+    this._interpolants = interpolants; // bound by the mixer
+    // inside: PropertyMixer (managed by the mixer)
+
+    this._propertyBindings = new Array(nTracks);
+    this._cacheIndex = null; // for the memory manager
+
+    this._byClipCacheIndex = null; // for the memory manager
+
+    this._timeScaleInterpolant = null;
+    this._weightInterpolant = null;
+    this.loop = LoopRepeat;
+    this._loopCount = -1; // global mixer time when the action is to be started
+    // it's set back to 'null' upon start of the action
+
+    this._startTime = null; // scaled local time of the action
+    // gets clamped or wrapped to 0..clip.duration according to loop
+
+    this.time = 0;
+    this.timeScale = 1;
+    this._effectiveTimeScale = 1;
+    this.weight = 1;
+    this._effectiveWeight = 1;
+    this.repetitions = Infinity; // no. of repetitions when looping
+
+    this.paused = false; // true -> zero effective time scale
+
+    this.enabled = true; // false -> zero effective weight
+
+    this.clampWhenFinished = false; // keep feeding the last frame?
+
+    this.zeroSlopeAtStart = true; // for smooth interpolation w/o separate
+
+    this.zeroSlopeAtEnd = true; // clips for start, loop and end
+  } // State & Scheduling
+
+
+  play() {
+    this._mixer._activateAction(this);
+
+    return this;
+  }
+
+  stop() {
+    this._mixer._deactivateAction(this);
+
+    return this.reset();
+  }
+
+  reset() {
+    this.paused = false;
+    this.enabled = true;
+    this.time = 0; // restart clip
+
+    this._loopCount = -1; // forget previous loops
+
+    this._startTime = null; // forget scheduling
+
+    return this.stopFading().stopWarping();
+  }
+
+  isRunning() {
+    return this.enabled && !this.paused && this.timeScale !== 0 && this._startTime === null && this._mixer._isActiveAction(this);
+  } // return true when play has been called
+
+
+  isScheduled() {
+    return this._mixer._isActiveAction(this);
+  }
+
+  startAt(time) {
+    this._startTime = time;
+    return this;
+  }
+
+  setLoop(mode, repetitions) {
+    this.loop = mode;
+    this.repetitions = repetitions;
+    return this;
+  } // Weight
+  // set the weight stopping any scheduled fading
+  // although .enabled = false yields an effective weight of zero, this
+  // method does *not* change .enabled, because it would be confusing
+
+
+  setEffectiveWeight(weight) {
+    this.weight = weight; // note: same logic as when updated at runtime
+
+    this._effectiveWeight = this.enabled ? weight : 0;
+    return this.stopFading();
+  } // return the weight considering fading and .enabled
+
+
+  getEffectiveWeight() {
+    return this._effectiveWeight;
+  }
+
+  fadeIn(duration) {
+    return this._scheduleFading(duration, 0, 1);
+  }
+
+  fadeOut(duration) {
+    return this._scheduleFading(duration, 1, 0);
+  }
+
+  crossFadeFrom(fadeOutAction, duration, warp) {
+    fadeOutAction.fadeOut(duration);
+    this.fadeIn(duration);
+
+    if (warp) {
+      const fadeInDuration = this._clip.duration,
+            fadeOutDuration = fadeOutAction._clip.duration,
+            startEndRatio = fadeOutDuration / fadeInDuration,
+            endStartRatio = fadeInDuration / fadeOutDuration;
+      fadeOutAction.warp(1.0, startEndRatio, duration);
+      this.warp(endStartRatio, 1.0, duration);
+    }
+
+    return this;
+  }
+
+  crossFadeTo(fadeInAction, duration, warp) {
+    return fadeInAction.crossFadeFrom(this, duration, warp);
+  }
+
+  stopFading() {
+    const weightInterpolant = this._weightInterpolant;
+
+    if (weightInterpolant !== null) {
+      this._weightInterpolant = null;
+
+      this._mixer._takeBackControlInterpolant(weightInterpolant);
+    }
+
+    return this;
+  } // Time Scale Control
+  // set the time scale stopping any scheduled warping
+  // although .paused = true yields an effective time scale of zero, this
+  // method does *not* change .paused, because it would be confusing
+
+
+  setEffectiveTimeScale(timeScale) {
+    this.timeScale = timeScale;
+    this._effectiveTimeScale = this.paused ? 0 : timeScale;
+    return this.stopWarping();
+  } // return the time scale considering warping and .paused
+
+
+  getEffectiveTimeScale() {
+    return this._effectiveTimeScale;
+  }
+
+  setDuration(duration) {
+    this.timeScale = this._clip.duration / duration;
+    return this.stopWarping();
+  }
+
+  syncWith(action) {
+    this.time = action.time;
+    this.timeScale = action.timeScale;
+    return this.stopWarping();
+  }
+
+  halt(duration) {
+    return this.warp(this._effectiveTimeScale, 0, duration);
+  }
+
+  warp(startTimeScale, endTimeScale, duration) {
+    const mixer = this._mixer,
+          now = mixer.time,
+          timeScale = this.timeScale;
+    let interpolant = this._timeScaleInterpolant;
+
+    if (interpolant === null) {
+      interpolant = mixer._lendControlInterpolant();
+      this._timeScaleInterpolant = interpolant;
+    }
+
+    const times = interpolant.parameterPositions,
+          values = interpolant.sampleValues;
+    times[0] = now;
+    times[1] = now + duration;
+    values[0] = startTimeScale / timeScale;
+    values[1] = endTimeScale / timeScale;
+    return this;
+  }
+
+  stopWarping() {
+    const timeScaleInterpolant = this._timeScaleInterpolant;
+
+    if (timeScaleInterpolant !== null) {
+      this._timeScaleInterpolant = null;
+
+      this._mixer._takeBackControlInterpolant(timeScaleInterpolant);
+    }
+
+    return this;
+  } // Object Accessors
+
+
+  getMixer() {
+    return this._mixer;
+  }
+
+  getClip() {
+    return this._clip;
+  }
+
+  getRoot() {
+    return this._localRoot || this._mixer._root;
+  } // Interna
+
+
+  _update(time, deltaTime, timeDirection, accuIndex) {
+    // called by the mixer
+    if (!this.enabled) {
+      // call ._updateWeight() to update ._effectiveWeight
+      this._updateWeight(time);
+
+      return;
+    }
+
+    const startTime = this._startTime;
+
+    if (startTime !== null) {
+      // check for scheduled start of action
+      const timeRunning = (time - startTime) * timeDirection;
+
+      if (timeRunning < 0 || timeDirection === 0) {
+        return; // yet to come / don't decide when delta = 0
+      } // start
+
+
+      this._startTime = null; // unschedule
+
+      deltaTime = timeDirection * timeRunning;
+    } // apply time scale and advance time
+
+
+    deltaTime *= this._updateTimeScale(time);
+
+    const clipTime = this._updateTime(deltaTime); // note: _updateTime may disable the action resulting in
+    // an effective weight of 0
+
+
+    const weight = this._updateWeight(time);
+
+    if (weight > 0) {
+      const interpolants = this._interpolants;
+      const propertyMixers = this._propertyBindings;
+
+      switch (this.blendMode) {
+        case AdditiveAnimationBlendMode:
+          for (let j = 0, m = interpolants.length; j !== m; ++j) {
+            interpolants[j].evaluate(clipTime);
+            propertyMixers[j].accumulateAdditive(weight);
+          }
+
+          break;
+
+        case NormalAnimationBlendMode:
+        default:
+          for (let j = 0, m = interpolants.length; j !== m; ++j) {
+            interpolants[j].evaluate(clipTime);
+            propertyMixers[j].accumulate(accuIndex, weight);
+          }
+
+      }
+    }
+  }
+
+  _updateWeight(time) {
+    let weight = 0;
+
+    if (this.enabled) {
+      weight = this.weight;
+      const interpolant = this._weightInterpolant;
+
+      if (interpolant !== null) {
+        const interpolantValue = interpolant.evaluate(time)[0];
+        weight *= interpolantValue;
+
+        if (time > interpolant.parameterPositions[1]) {
+          this.stopFading();
+
+          if (interpolantValue === 0) {
+            // faded out, disable
+            this.enabled = false;
+          }
+        }
+      }
+    }
+
+    this._effectiveWeight = weight;
+    return weight;
+  }
+
+  _updateTimeScale(time) {
+    let timeScale = 0;
+
+    if (!this.paused) {
+      timeScale = this.timeScale;
+      const interpolant = this._timeScaleInterpolant;
+
+      if (interpolant !== null) {
+        const interpolantValue = interpolant.evaluate(time)[0];
+        timeScale *= interpolantValue;
+
+        if (time > interpolant.parameterPositions[1]) {
+          this.stopWarping();
+
+          if (timeScale === 0) {
+            // motion has halted, pause
+            this.paused = true;
+          } else {
+            // warp done - apply final time scale
+            this.timeScale = timeScale;
+          }
+        }
+      }
+    }
+
+    this._effectiveTimeScale = timeScale;
+    return timeScale;
+  }
+
+  _updateTime(deltaTime) {
+    const duration = this._clip.duration;
+    const loop = this.loop;
+    let time = this.time + deltaTime;
+    let loopCount = this._loopCount;
+    const pingPong = loop === LoopPingPong;
+
+    if (deltaTime === 0) {
+      if (loopCount === -1) return time;
+      return pingPong && (loopCount & 1) === 1 ? duration - time : time;
+    }
+
+    if (loop === LoopOnce) {
+      if (loopCount === -1) {
+        // just started
+        this._loopCount = 0;
+
+        this._setEndings(true, true, false);
+      }
+
+      handle_stop: {
+        if (time >= duration) {
+          time = duration;
+        } else if (time < 0) {
+          time = 0;
+        } else {
+          this.time = time;
+          break handle_stop;
+        }
+
+        if (this.clampWhenFinished) this.paused = true;else this.enabled = false;
+        this.time = time;
+
+        this._mixer.dispatchEvent({
+          type: 'finished',
+          action: this,
+          direction: deltaTime < 0 ? -1 : 1
+        });
+      }
+    } else {
+      // repetitive Repeat or PingPong
+      if (loopCount === -1) {
+        // just started
+        if (deltaTime >= 0) {
+          loopCount = 0;
+
+          this._setEndings(true, this.repetitions === 0, pingPong);
+        } else {
+          // when looping in reverse direction, the initial
+          // transition through zero counts as a repetition,
+          // so leave loopCount at -1
+          this._setEndings(this.repetitions === 0, true, pingPong);
+        }
+      }
+
+      if (time >= duration || time < 0) {
+        // wrap around
+        const loopDelta = Math.floor(time / duration); // signed
+
+        time -= duration * loopDelta;
+        loopCount += Math.abs(loopDelta);
+        const pending = this.repetitions - loopCount;
+
+        if (pending <= 0) {
+          // have to stop (switch state, clamp time, fire event)
+          if (this.clampWhenFinished) this.paused = true;else this.enabled = false;
+          time = deltaTime > 0 ? duration : 0;
+          this.time = time;
+
+          this._mixer.dispatchEvent({
+            type: 'finished',
+            action: this,
+            direction: deltaTime > 0 ? 1 : -1
+          });
+        } else {
+          // keep running
+          if (pending === 1) {
+            // entering the last round
+            const atStart = deltaTime < 0;
+
+            this._setEndings(atStart, !atStart, pingPong);
+          } else {
+            this._setEndings(false, false, pingPong);
+          }
+
+          this._loopCount = loopCount;
+          this.time = time;
+
+          this._mixer.dispatchEvent({
+            type: 'loop',
+            action: this,
+            loopDelta: loopDelta
+          });
+        }
+      } else {
+        this.time = time;
+      }
+
+      if (pingPong && (loopCount & 1) === 1) {
+        // invert time for the "pong round"
+        return duration - time;
+      }
+    }
+
+    return time;
+  }
+
+  _setEndings(atStart, atEnd, pingPong) {
+    const settings = this._interpolantSettings;
+
+    if (pingPong) {
+      settings.endingStart = ZeroSlopeEnding;
+      settings.endingEnd = ZeroSlopeEnding;
+    } else {
+      // assuming for LoopOnce atStart == atEnd == true
+      if (atStart) {
+        settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;
+      } else {
+        settings.endingStart = WrapAroundEnding;
+      }
+
+      if (atEnd) {
+        settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;
+      } else {
+        settings.endingEnd = WrapAroundEnding;
+      }
+    }
+  }
+
+  _scheduleFading(duration, weightNow, weightThen) {
+    const mixer = this._mixer,
+          now = mixer.time;
+    let interpolant = this._weightInterpolant;
+
+    if (interpolant === null) {
+      interpolant = mixer._lendControlInterpolant();
+      this._weightInterpolant = interpolant;
+    }
+
+    const times = interpolant.parameterPositions,
+          values = interpolant.sampleValues;
+    times[0] = now;
+    values[0] = weightNow;
+    times[1] = now + duration;
+    values[1] = weightThen;
+    return this;
+  }
+
+}
+
+class AnimationMixer extends EventDispatcher {
+  constructor(root) {
+    super();
+    this._root = root;
+
+    this._initMemoryManager();
+
+    this._accuIndex = 0;
+    this.time = 0;
+    this.timeScale = 1.0;
+  }
+
+  _bindAction(action, prototypeAction) {
+    const root = action._localRoot || this._root,
+          tracks = action._clip.tracks,
+          nTracks = tracks.length,
+          bindings = action._propertyBindings,
+          interpolants = action._interpolants,
+          rootUuid = root.uuid,
+          bindingsByRoot = this._bindingsByRootAndName;
+    let bindingsByName = bindingsByRoot[rootUuid];
+
+    if (bindingsByName === undefined) {
+      bindingsByName = {};
+      bindingsByRoot[rootUuid] = bindingsByName;
+    }
+
+    for (let i = 0; i !== nTracks; ++i) {
+      const track = tracks[i],
+            trackName = track.name;
+      let binding = bindingsByName[trackName];
+
+      if (binding !== undefined) {
+        bindings[i] = binding;
+      } else {
+        binding = bindings[i];
+
+        if (binding !== undefined) {
+          // existing binding, make sure the cache knows
+          if (binding._cacheIndex === null) {
+            ++binding.referenceCount;
+
+            this._addInactiveBinding(binding, rootUuid, trackName);
+          }
+
+          continue;
+        }
+
+        const path = prototypeAction && prototypeAction._propertyBindings[i].binding.parsedPath;
+        binding = new PropertyMixer(PropertyBinding.create(root, trackName, path), track.ValueTypeName, track.getValueSize());
+        ++binding.referenceCount;
+
+        this._addInactiveBinding(binding, rootUuid, trackName);
+
+        bindings[i] = binding;
+      }
+
+      interpolants[i].resultBuffer = binding.buffer;
+    }
+  }
+
+  _activateAction(action) {
+    if (!this._isActiveAction(action)) {
+      if (action._cacheIndex === null) {
+        // this action has been forgotten by the cache, but the user
+        // appears to be still using it -> rebind
+        const rootUuid = (action._localRoot || this._root).uuid,
+              clipUuid = action._clip.uuid,
+              actionsForClip = this._actionsByClip[clipUuid];
+
+        this._bindAction(action, actionsForClip && actionsForClip.knownActions[0]);
+
+        this._addInactiveAction(action, clipUuid, rootUuid);
+      }
+
+      const bindings = action._propertyBindings; // increment reference counts / sort out state
+
+      for (let i = 0, n = bindings.length; i !== n; ++i) {
+        const binding = bindings[i];
+
+        if (binding.useCount++ === 0) {
+          this._lendBinding(binding);
+
+          binding.saveOriginalState();
+        }
+      }
+
+      this._lendAction(action);
+    }
+  }
+
+  _deactivateAction(action) {
+    if (this._isActiveAction(action)) {
+      const bindings = action._propertyBindings; // decrement reference counts / sort out state
+
+      for (let i = 0, n = bindings.length; i !== n; ++i) {
+        const binding = bindings[i];
+
+        if (--binding.useCount === 0) {
+          binding.restoreOriginalState();
+
+          this._takeBackBinding(binding);
+        }
+      }
+
+      this._takeBackAction(action);
+    }
+  } // Memory manager
+
+
+  _initMemoryManager() {
+    this._actions = []; // 'nActiveActions' followed by inactive ones
+
+    this._nActiveActions = 0;
+    this._actionsByClip = {}; // inside:
+    // {
+    // 	knownActions: Array< AnimationAction > - used as prototypes
+    // 	actionByRoot: AnimationAction - lookup
+    // }
+
+    this._bindings = []; // 'nActiveBindings' followed by inactive ones
+
+    this._nActiveBindings = 0;
+    this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >
+
+    this._controlInterpolants = []; // same game as above
+
+    this._nActiveControlInterpolants = 0;
+    const scope = this;
+    this.stats = {
+      actions: {
+        get total() {
+          return scope._actions.length;
+        },
+
+        get inUse() {
+          return scope._nActiveActions;
+        }
+
+      },
+      bindings: {
+        get total() {
+          return scope._bindings.length;
+        },
+
+        get inUse() {
+          return scope._nActiveBindings;
+        }
+
+      },
+      controlInterpolants: {
+        get total() {
+          return scope._controlInterpolants.length;
+        },
+
+        get inUse() {
+          return scope._nActiveControlInterpolants;
+        }
+
+      }
+    };
+  } // Memory management for AnimationAction objects
+
+
+  _isActiveAction(action) {
+    const index = action._cacheIndex;
+    return index !== null && index < this._nActiveActions;
+  }
+
+  _addInactiveAction(action, clipUuid, rootUuid) {
+    const actions = this._actions,
+          actionsByClip = this._actionsByClip;
+    let actionsForClip = actionsByClip[clipUuid];
+
+    if (actionsForClip === undefined) {
+      actionsForClip = {
+        knownActions: [action],
+        actionByRoot: {}
+      };
+      action._byClipCacheIndex = 0;
+      actionsByClip[clipUuid] = actionsForClip;
+    } else {
+      const knownActions = actionsForClip.knownActions;
+      action._byClipCacheIndex = knownActions.length;
+      knownActions.push(action);
+    }
+
+    action._cacheIndex = actions.length;
+    actions.push(action);
+    actionsForClip.actionByRoot[rootUuid] = action;
+  }
+
+  _removeInactiveAction(action) {
+    const actions = this._actions,
+          lastInactiveAction = actions[actions.length - 1],
+          cacheIndex = action._cacheIndex;
+    lastInactiveAction._cacheIndex = cacheIndex;
+    actions[cacheIndex] = lastInactiveAction;
+    actions.pop();
+    action._cacheIndex = null;
+    const clipUuid = action._clip.uuid,
+          actionsByClip = this._actionsByClip,
+          actionsForClip = actionsByClip[clipUuid],
+          knownActionsForClip = actionsForClip.knownActions,
+          lastKnownAction = knownActionsForClip[knownActionsForClip.length - 1],
+          byClipCacheIndex = action._byClipCacheIndex;
+    lastKnownAction._byClipCacheIndex = byClipCacheIndex;
+    knownActionsForClip[byClipCacheIndex] = lastKnownAction;
+    knownActionsForClip.pop();
+    action._byClipCacheIndex = null;
+    const actionByRoot = actionsForClip.actionByRoot,
+          rootUuid = (action._localRoot || this._root).uuid;
+    delete actionByRoot[rootUuid];
+
+    if (knownActionsForClip.length === 0) {
+      delete actionsByClip[clipUuid];
+    }
+
+    this._removeInactiveBindingsForAction(action);
+  }
+
+  _removeInactiveBindingsForAction(action) {
+    const bindings = action._propertyBindings;
+
+    for (let i = 0, n = bindings.length; i !== n; ++i) {
+      const binding = bindings[i];
+
+      if (--binding.referenceCount === 0) {
+        this._removeInactiveBinding(binding);
+      }
+    }
+  }
+
+  _lendAction(action) {
+    // [ active actions |  inactive actions  ]
+    // [  active actions >| inactive actions ]
+    //                 s        a
+    //                  <-swap->
+    //                 a        s
+    const actions = this._actions,
+          prevIndex = action._cacheIndex,
+          lastActiveIndex = this._nActiveActions++,
+          firstInactiveAction = actions[lastActiveIndex];
+    action._cacheIndex = lastActiveIndex;
+    actions[lastActiveIndex] = action;
+    firstInactiveAction._cacheIndex = prevIndex;
+    actions[prevIndex] = firstInactiveAction;
+  }
+
+  _takeBackAction(action) {
+    // [  active actions  | inactive actions ]
+    // [ active actions |< inactive actions  ]
+    //        a        s
+    //         <-swap->
+    //        s        a
+    const actions = this._actions,
+          prevIndex = action._cacheIndex,
+          firstInactiveIndex = --this._nActiveActions,
+          lastActiveAction = actions[firstInactiveIndex];
+    action._cacheIndex = firstInactiveIndex;
+    actions[firstInactiveIndex] = action;
+    lastActiveAction._cacheIndex = prevIndex;
+    actions[prevIndex] = lastActiveAction;
+  } // Memory management for PropertyMixer objects
+
+
+  _addInactiveBinding(binding, rootUuid, trackName) {
+    const bindingsByRoot = this._bindingsByRootAndName,
+          bindings = this._bindings;
+    let bindingByName = bindingsByRoot[rootUuid];
+
+    if (bindingByName === undefined) {
+      bindingByName = {};
+      bindingsByRoot[rootUuid] = bindingByName;
+    }
+
+    bindingByName[trackName] = binding;
+    binding._cacheIndex = bindings.length;
+    bindings.push(binding);
+  }
+
+  _removeInactiveBinding(binding) {
+    const bindings = this._bindings,
+          propBinding = binding.binding,
+          rootUuid = propBinding.rootNode.uuid,
+          trackName = propBinding.path,
+          bindingsByRoot = this._bindingsByRootAndName,
+          bindingByName = bindingsByRoot[rootUuid],
+          lastInactiveBinding = bindings[bindings.length - 1],
+          cacheIndex = binding._cacheIndex;
+    lastInactiveBinding._cacheIndex = cacheIndex;
+    bindings[cacheIndex] = lastInactiveBinding;
+    bindings.pop();
+    delete bindingByName[trackName];
+
+    if (Object.keys(bindingByName).length === 0) {
+      delete bindingsByRoot[rootUuid];
+    }
+  }
+
+  _lendBinding(binding) {
+    const bindings = this._bindings,
+          prevIndex = binding._cacheIndex,
+          lastActiveIndex = this._nActiveBindings++,
+          firstInactiveBinding = bindings[lastActiveIndex];
+    binding._cacheIndex = lastActiveIndex;
+    bindings[lastActiveIndex] = binding;
+    firstInactiveBinding._cacheIndex = prevIndex;
+    bindings[prevIndex] = firstInactiveBinding;
+  }
+
+  _takeBackBinding(binding) {
+    const bindings = this._bindings,
+          prevIndex = binding._cacheIndex,
+          firstInactiveIndex = --this._nActiveBindings,
+          lastActiveBinding = bindings[firstInactiveIndex];
+    binding._cacheIndex = firstInactiveIndex;
+    bindings[firstInactiveIndex] = binding;
+    lastActiveBinding._cacheIndex = prevIndex;
+    bindings[prevIndex] = lastActiveBinding;
+  } // Memory management of Interpolants for weight and time scale
+
+
+  _lendControlInterpolant() {
+    const interpolants = this._controlInterpolants,
+          lastActiveIndex = this._nActiveControlInterpolants++;
+    let interpolant = interpolants[lastActiveIndex];
+
+    if (interpolant === undefined) {
+      interpolant = new LinearInterpolant(new Float32Array(2), new Float32Array(2), 1, this._controlInterpolantsResultBuffer);
+      interpolant.__cacheIndex = lastActiveIndex;
+      interpolants[lastActiveIndex] = interpolant;
+    }
+
+    return interpolant;
+  }
+
+  _takeBackControlInterpolant(interpolant) {
+    const interpolants = this._controlInterpolants,
+          prevIndex = interpolant.__cacheIndex,
+          firstInactiveIndex = --this._nActiveControlInterpolants,
+          lastActiveInterpolant = interpolants[firstInactiveIndex];
+    interpolant.__cacheIndex = firstInactiveIndex;
+    interpolants[firstInactiveIndex] = interpolant;
+    lastActiveInterpolant.__cacheIndex = prevIndex;
+    interpolants[prevIndex] = lastActiveInterpolant;
+  } // return an action for a clip optionally using a custom root target
+  // object (this method allocates a lot of dynamic memory in case a
+  // previously unknown clip/root combination is specified)
+
+
+  clipAction(clip, optionalRoot, blendMode) {
+    const root = optionalRoot || this._root,
+          rootUuid = root.uuid;
+    let clipObject = typeof clip === 'string' ? AnimationClip.findByName(root, clip) : clip;
+    const clipUuid = clipObject !== null ? clipObject.uuid : clip;
+    const actionsForClip = this._actionsByClip[clipUuid];
+    let prototypeAction = null;
+
+    if (blendMode === undefined) {
+      if (clipObject !== null) {
+        blendMode = clipObject.blendMode;
+      } else {
+        blendMode = NormalAnimationBlendMode;
+      }
+    }
+
+    if (actionsForClip !== undefined) {
+      const existingAction = actionsForClip.actionByRoot[rootUuid];
+
+      if (existingAction !== undefined && existingAction.blendMode === blendMode) {
+        return existingAction;
+      } // we know the clip, so we don't have to parse all
+      // the bindings again but can just copy
+
+
+      prototypeAction = actionsForClip.knownActions[0]; // also, take the clip from the prototype action
+
+      if (clipObject === null) clipObject = prototypeAction._clip;
+    } // clip must be known when specified via string
+
+
+    if (clipObject === null) return null; // allocate all resources required to run it
+
+    const newAction = new AnimationAction(this, clipObject, optionalRoot, blendMode);
+
+    this._bindAction(newAction, prototypeAction); // and make the action known to the memory manager
+
+
+    this._addInactiveAction(newAction, clipUuid, rootUuid);
+
+    return newAction;
+  } // get an existing action
+
+
+  existingAction(clip, optionalRoot) {
+    const root = optionalRoot || this._root,
+          rootUuid = root.uuid,
+          clipObject = typeof clip === 'string' ? AnimationClip.findByName(root, clip) : clip,
+          clipUuid = clipObject ? clipObject.uuid : clip,
+          actionsForClip = this._actionsByClip[clipUuid];
+
+    if (actionsForClip !== undefined) {
+      return actionsForClip.actionByRoot[rootUuid] || null;
+    }
+
+    return null;
+  } // deactivates all previously scheduled actions
+
+
+  stopAllAction() {
+    const actions = this._actions,
+          nActions = this._nActiveActions;
+
+    for (let i = nActions - 1; i >= 0; --i) {
+      actions[i].stop();
+    }
+
+    return this;
+  } // advance the time and update apply the animation
+
+
+  update(deltaTime) {
+    deltaTime *= this.timeScale;
+    const actions = this._actions,
+          nActions = this._nActiveActions,
+          time = this.time += deltaTime,
+          timeDirection = Math.sign(deltaTime),
+          accuIndex = this._accuIndex ^= 1; // run active actions
+
+    for (let i = 0; i !== nActions; ++i) {
+      const action = actions[i];
+
+      action._update(time, deltaTime, timeDirection, accuIndex);
+    } // update scene graph
+
+
+    const bindings = this._bindings,
+          nBindings = this._nActiveBindings;
+
+    for (let i = 0; i !== nBindings; ++i) {
+      bindings[i].apply(accuIndex);
+    }
+
+    return this;
+  } // Allows you to seek to a specific time in an animation.
+
+
+  setTime(timeInSeconds) {
+    this.time = 0; // Zero out time attribute for AnimationMixer object;
+
+    for (let i = 0; i < this._actions.length; i++) {
+      this._actions[i].time = 0; // Zero out time attribute for all associated AnimationAction objects.
+    }
+
+    return this.update(timeInSeconds); // Update used to set exact time. Returns "this" AnimationMixer object.
+  } // return this mixer's root target object
+
+
+  getRoot() {
+    return this._root;
+  } // free all resources specific to a particular clip
+
+
+  uncacheClip(clip) {
+    const actions = this._actions,
+          clipUuid = clip.uuid,
+          actionsByClip = this._actionsByClip,
+          actionsForClip = actionsByClip[clipUuid];
+
+    if (actionsForClip !== undefined) {
+      // note: just calling _removeInactiveAction would mess up the
+      // iteration state and also require updating the state we can
+      // just throw away
+      const actionsToRemove = actionsForClip.knownActions;
+
+      for (let i = 0, n = actionsToRemove.length; i !== n; ++i) {
+        const action = actionsToRemove[i];
+
+        this._deactivateAction(action);
+
+        const cacheIndex = action._cacheIndex,
+              lastInactiveAction = actions[actions.length - 1];
+        action._cacheIndex = null;
+        action._byClipCacheIndex = null;
+        lastInactiveAction._cacheIndex = cacheIndex;
+        actions[cacheIndex] = lastInactiveAction;
+        actions.pop();
+
+        this._removeInactiveBindingsForAction(action);
+      }
+
+      delete actionsByClip[clipUuid];
+    }
+  } // free all resources specific to a particular root target object
+
+
+  uncacheRoot(root) {
+    const rootUuid = root.uuid,
+          actionsByClip = this._actionsByClip;
+
+    for (const clipUuid in actionsByClip) {
+      const actionByRoot = actionsByClip[clipUuid].actionByRoot,
+            action = actionByRoot[rootUuid];
+
+      if (action !== undefined) {
+        this._deactivateAction(action);
+
+        this._removeInactiveAction(action);
+      }
+    }
+
+    const bindingsByRoot = this._bindingsByRootAndName,
+          bindingByName = bindingsByRoot[rootUuid];
+
+    if (bindingByName !== undefined) {
+      for (const trackName in bindingByName) {
+        const binding = bindingByName[trackName];
+        binding.restoreOriginalState();
+
+        this._removeInactiveBinding(binding);
+      }
+    }
+  } // remove a targeted clip from the cache
+
+
+  uncacheAction(clip, optionalRoot) {
+    const action = this.existingAction(clip, optionalRoot);
+
+    if (action !== null) {
+      this._deactivateAction(action);
+
+      this._removeInactiveAction(action);
+    }
+  }
+
+}
+
+exports.AnimationMixer = AnimationMixer;
+AnimationMixer.prototype._controlInterpolantsResultBuffer = new Float32Array(1);
+
+class Uniform {
+  constructor(value) {
+    if (typeof value === 'string') {
+      console.warn('THREE.Uniform: Type parameter is no longer needed.');
+      value = arguments[1];
+    }
+
+    this.value = value;
+  }
+
+  clone() {
+    return new Uniform(this.value.clone === undefined ? this.value : this.value.clone());
+  }
+
+}
+
+exports.Uniform = Uniform;
+
+function InstancedInterleavedBuffer(array, stride, meshPerAttribute) {
+  InterleavedBuffer.call(this, array, stride);
+  this.meshPerAttribute = meshPerAttribute || 1;
+}
+
+InstancedInterleavedBuffer.prototype = Object.assign(Object.create(InterleavedBuffer.prototype), {
+  constructor: InstancedInterleavedBuffer,
+  isInstancedInterleavedBuffer: true,
+  copy: function (source) {
+    InterleavedBuffer.prototype.copy.call(this, source);
+    this.meshPerAttribute = source.meshPerAttribute;
+    return this;
+  },
+  clone: function (data) {
+    const ib = InterleavedBuffer.prototype.clone.call(this, data);
+    ib.meshPerAttribute = this.meshPerAttribute;
+    return ib;
+  },
+  toJSON: function (data) {
+    const json = InterleavedBuffer.prototype.toJSON.call(this, data);
+    json.isInstancedInterleavedBuffer = true;
+    json.meshPerAttribute = this.meshPerAttribute;
+    return json;
+  }
+});
+
+function GLBufferAttribute(buffer, type, itemSize, elementSize, count) {
+  this.buffer = buffer;
+  this.type = type;
+  this.itemSize = itemSize;
+  this.elementSize = elementSize;
+  this.count = count;
+  this.version = 0;
+}
+
+Object.defineProperty(GLBufferAttribute.prototype, 'needsUpdate', {
+  set: function (value) {
+    if (value === true) this.version++;
+  }
+});
+Object.assign(GLBufferAttribute.prototype, {
+  isGLBufferAttribute: true,
+  setBuffer: function (buffer) {
+    this.buffer = buffer;
+    return this;
+  },
+  setType: function (type, elementSize) {
+    this.type = type;
+    this.elementSize = elementSize;
+    return this;
+  },
+  setItemSize: function (itemSize) {
+    this.itemSize = itemSize;
+    return this;
+  },
+  setCount: function (count) {
+    this.count = count;
+    return this;
+  }
+});
+
+function Raycaster(origin, direction, near = 0, far = Infinity) {
+  this.ray = new Ray(origin, direction); // direction is assumed to be normalized (for accurate distance calculations)
+
+  this.near = near;
+  this.far = far;
+  this.camera = null;
+  this.layers = new Layers();
+  this.params = {
+    Mesh: {},
+    Line: {
+      threshold: 1
+    },
+    LOD: {},
+    Points: {
+      threshold: 1
+    },
+    Sprite: {}
+  };
+  Object.defineProperties(this.params, {
+    PointCloud: {
+      get: function () {
+        console.warn('THREE.Raycaster: params.PointCloud has been renamed to params.Points.');
+        return this.Points;
+      }
+    }
+  });
+}
+
+function ascSort(a, b) {
+  return a.distance - b.distance;
+}
+
+function intersectObject(object, raycaster, intersects, recursive) {
+  if (object.layers.test(raycaster.layers)) {
+    object.raycast(raycaster, intersects);
+  }
+
+  if (recursive === true) {
+    const children = object.children;
+
+    for (let i = 0, l = children.length; i < l; i++) {
+      intersectObject(children[i], raycaster, intersects, true);
+    }
+  }
+}
+
+Object.assign(Raycaster.prototype, {
+  set: function (origin, direction) {
+    // direction is assumed to be normalized (for accurate distance calculations)
+    this.ray.set(origin, direction);
+  },
+  setFromCamera: function (coords, camera) {
+    if (camera && camera.isPerspectiveCamera) {
+      this.ray.origin.setFromMatrixPosition(camera.matrixWorld);
+      this.ray.direction.set(coords.x, coords.y, 0.5).unproject(camera).sub(this.ray.origin).normalize();
+      this.camera = camera;
+    } else if (camera && camera.isOrthographicCamera) {
+      this.ray.origin.set(coords.x, coords.y, (camera.near + camera.far) / (camera.near - camera.far)).unproject(camera); // set origin in plane of camera
+
+      this.ray.direction.set(0, 0, -1).transformDirection(camera.matrixWorld);
+      this.camera = camera;
+    } else {
+      console.error('THREE.Raycaster: Unsupported camera type: ' + camera.type);
+    }
+  },
+  intersectObject: function (object, recursive = false, intersects = []) {
+    intersectObject(object, this, intersects, recursive);
+    intersects.sort(ascSort);
+    return intersects;
+  },
+  intersectObjects: function (objects, recursive = false, intersects = []) {
+    for (let i = 0, l = objects.length; i < l; i++) {
+      intersectObject(objects[i], this, intersects, recursive);
+    }
+
+    intersects.sort(ascSort);
+    return intersects;
+  }
+});
+/**
+ * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
+ *
+ * The polar angle (phi) is measured from the positive y-axis. The positive y-axis is up.
+ * The azimuthal angle (theta) is measured from the positive z-axis.
+ */
+
+class Spherical {
+  constructor(radius = 1, phi = 0, theta = 0) {
+    this.radius = radius;
+    this.phi = phi; // polar angle
+
+    this.theta = theta; // azimuthal angle
+
+    return this;
+  }
+
+  set(radius, phi, theta) {
+    this.radius = radius;
+    this.phi = phi;
+    this.theta = theta;
+    return this;
+  }
+
+  copy(other) {
+    this.radius = other.radius;
+    this.phi = other.phi;
+    this.theta = other.theta;
+    return this;
+  } // restrict phi to be betwee EPS and PI-EPS
+
+
+  makeSafe() {
+    const EPS = 0.000001;
+    this.phi = Math.max(EPS, Math.min(Math.PI - EPS, this.phi));
+    return this;
+  }
+
+  setFromVector3(v) {
+    return this.setFromCartesianCoords(v.x, v.y, v.z);
+  }
+
+  setFromCartesianCoords(x, y, z) {
+    this.radius = Math.sqrt(x * x + y * y + z * z);
+
+    if (this.radius === 0) {
+      this.theta = 0;
+      this.phi = 0;
+    } else {
+      this.theta = Math.atan2(x, z);
+      this.phi = Math.acos(MathUtils.clamp(y / this.radius, -1, 1));
+    }
+
+    return this;
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+}
+/**
+ * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
+ */
+
+
+exports.Spherical = Spherical;
+
+class Cylindrical {
+  constructor(radius = 1, theta = 0, y = 0) {
+    this.radius = radius; // distance from the origin to a point in the x-z plane
+
+    this.theta = theta; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
+
+    this.y = y; // height above the x-z plane
+
+    return this;
+  }
+
+  set(radius, theta, y) {
+    this.radius = radius;
+    this.theta = theta;
+    this.y = y;
+    return this;
+  }
+
+  copy(other) {
+    this.radius = other.radius;
+    this.theta = other.theta;
+    this.y = other.y;
+    return this;
+  }
+
+  setFromVector3(v) {
+    return this.setFromCartesianCoords(v.x, v.y, v.z);
+  }
+
+  setFromCartesianCoords(x, y, z) {
+    this.radius = Math.sqrt(x * x + z * z);
+    this.theta = Math.atan2(x, z);
+    this.y = y;
+    return this;
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+}
+
+exports.Cylindrical = Cylindrical;
+
+const _vector$8 =
+/*@__PURE__*/
+new Vector2();
+
+class Box2 {
+  constructor(min = new Vector2(+Infinity, +Infinity), max = new Vector2(-Infinity, -Infinity)) {
+    this.min = min;
+    this.max = max;
+  }
+
+  set(min, max) {
+    this.min.copy(min);
+    this.max.copy(max);
+    return this;
+  }
+
+  setFromPoints(points) {
+    this.makeEmpty();
+
+    for (let i = 0, il = points.length; i < il; i++) {
+      this.expandByPoint(points[i]);
+    }
+
+    return this;
+  }
+
+  setFromCenterAndSize(center, size) {
+    const halfSize = _vector$8.copy(size).multiplyScalar(0.5);
+
+    this.min.copy(center).sub(halfSize);
+    this.max.copy(center).add(halfSize);
+    return this;
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+  copy(box) {
+    this.min.copy(box.min);
+    this.max.copy(box.max);
+    return this;
+  }
+
+  makeEmpty() {
+    this.min.x = this.min.y = +Infinity;
+    this.max.x = this.max.y = -Infinity;
+    return this;
+  }
+
+  isEmpty() {
+    // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
+    return this.max.x < this.min.x || this.max.y < this.min.y;
+  }
+
+  getCenter(target) {
+    if (target === undefined) {
+      console.warn('THREE.Box2: .getCenter() target is now required');
+      target = new Vector2();
+    }
+
+    return this.isEmpty() ? target.set(0, 0) : target.addVectors(this.min, this.max).multiplyScalar(0.5);
+  }
+
+  getSize(target) {
+    if (target === undefined) {
+      console.warn('THREE.Box2: .getSize() target is now required');
+      target = new Vector2();
+    }
+
+    return this.isEmpty() ? target.set(0, 0) : target.subVectors(this.max, this.min);
+  }
+
+  expandByPoint(point) {
+    this.min.min(point);
+    this.max.max(point);
+    return this;
+  }
+
+  expandByVector(vector) {
+    this.min.sub(vector);
+    this.max.add(vector);
+    return this;
+  }
+
+  expandByScalar(scalar) {
+    this.min.addScalar(-scalar);
+    this.max.addScalar(scalar);
+    return this;
+  }
+
+  containsPoint(point) {
+    return point.x < this.min.x || point.x > this.max.x || point.y < this.min.y || point.y > this.max.y ? false : true;
+  }
+
+  containsBox(box) {
+    return this.min.x <= box.min.x && box.max.x <= this.max.x && this.min.y <= box.min.y && box.max.y <= this.max.y;
+  }
+
+  getParameter(point, target) {
+    // This can potentially have a divide by zero if the box
+    // has a size dimension of 0.
+    if (target === undefined) {
+      console.warn('THREE.Box2: .getParameter() target is now required');
+      target = new Vector2();
+    }
+
+    return target.set((point.x - this.min.x) / (this.max.x - this.min.x), (point.y - this.min.y) / (this.max.y - this.min.y));
+  }
+
+  intersectsBox(box) {
+    // using 4 splitting planes to rule out intersections
+    return box.max.x < this.min.x || box.min.x > this.max.x || box.max.y < this.min.y || box.min.y > this.max.y ? false : true;
+  }
+
+  clampPoint(point, target) {
+    if (target === undefined) {
+      console.warn('THREE.Box2: .clampPoint() target is now required');
+      target = new Vector2();
+    }
+
+    return target.copy(point).clamp(this.min, this.max);
+  }
+
+  distanceToPoint(point) {
+    const clampedPoint = _vector$8.copy(point).clamp(this.min, this.max);
+
+    return clampedPoint.sub(point).length();
+  }
+
+  intersect(box) {
+    this.min.max(box.min);
+    this.max.min(box.max);
+    return this;
+  }
+
+  union(box) {
+    this.min.min(box.min);
+    this.max.max(box.max);
+    return this;
+  }
+
+  translate(offset) {
+    this.min.add(offset);
+    this.max.add(offset);
+    return this;
+  }
+
+  equals(box) {
+    return box.min.equals(this.min) && box.max.equals(this.max);
+  }
+
+}
+
+exports.Box2 = Box2;
+Box2.prototype.isBox2 = true;
+
+const _startP =
+/*@__PURE__*/
+new Vector3();
+
+const _startEnd =
+/*@__PURE__*/
+new Vector3();
+
+class Line3 {
+  constructor(start = new Vector3(), end = new Vector3()) {
+    this.start = start;
+    this.end = end;
+  }
+
+  set(start, end) {
+    this.start.copy(start);
+    this.end.copy(end);
+    return this;
+  }
+
+  copy(line) {
+    this.start.copy(line.start);
+    this.end.copy(line.end);
+    return this;
+  }
+
+  getCenter(target) {
+    if (target === undefined) {
+      console.warn('THREE.Line3: .getCenter() target is now required');
+      target = new Vector3();
+    }
+
+    return target.addVectors(this.start, this.end).multiplyScalar(0.5);
+  }
+
+  delta(target) {
+    if (target === undefined) {
+      console.warn('THREE.Line3: .delta() target is now required');
+      target = new Vector3();
+    }
+
+    return target.subVectors(this.end, this.start);
+  }
+
+  distanceSq() {
+    return this.start.distanceToSquared(this.end);
+  }
+
+  distance() {
+    return this.start.distanceTo(this.end);
+  }
+
+  at(t, target) {
+    if (target === undefined) {
+      console.warn('THREE.Line3: .at() target is now required');
+      target = new Vector3();
+    }
+
+    return this.delta(target).multiplyScalar(t).add(this.start);
+  }
+
+  closestPointToPointParameter(point, clampToLine) {
+    _startP.subVectors(point, this.start);
+
+    _startEnd.subVectors(this.end, this.start);
+
+    const startEnd2 = _startEnd.dot(_startEnd);
+
+    const startEnd_startP = _startEnd.dot(_startP);
+
+    let t = startEnd_startP / startEnd2;
+
+    if (clampToLine) {
+      t = MathUtils.clamp(t, 0, 1);
+    }
+
+    return t;
+  }
+
+  closestPointToPoint(point, clampToLine, target) {
+    const t = this.closestPointToPointParameter(point, clampToLine);
+
+    if (target === undefined) {
+      console.warn('THREE.Line3: .closestPointToPoint() target is now required');
+      target = new Vector3();
+    }
+
+    return this.delta(target).multiplyScalar(t).add(this.start);
+  }
+
+  applyMatrix4(matrix) {
+    this.start.applyMatrix4(matrix);
+    this.end.applyMatrix4(matrix);
+    return this;
+  }
+
+  equals(line) {
+    return line.start.equals(this.start) && line.end.equals(this.end);
+  }
+
+  clone() {
+    return new this.constructor().copy(this);
+  }
+
+}
+
+exports.Line3 = Line3;
+
+function ImmediateRenderObject(material) {
+  Object3D.call(this);
+  this.material = material;
+
+  this.render = function ()
+  /* renderCallback */
+  {};
+
+  this.hasPositions = false;
+  this.hasNormals = false;
+  this.hasColors = false;
+  this.hasUvs = false;
+  this.positionArray = null;
+  this.normalArray = null;
+  this.colorArray = null;
+  this.uvArray = null;
+  this.count = 0;
+}
+
+ImmediateRenderObject.prototype = Object.create(Object3D.prototype);
+ImmediateRenderObject.prototype.constructor = ImmediateRenderObject;
+ImmediateRenderObject.prototype.isImmediateRenderObject = true;
+
+const _vector$9 =
+/*@__PURE__*/
+new Vector3();
+
+class SpotLightHelper extends Object3D {
+  constructor(light, color) {
+    super();
+    this.light = light;
+    this.light.updateMatrixWorld();
+    this.matrix = light.matrixWorld;
+    this.matrixAutoUpdate = false;
+    this.color = color;
+    const geometry = new BufferGeometry();
+    const positions = [0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, -1, 1];
+
+    for (let i = 0, j = 1, l = 32; i < l; i++, j++) {
+      const p1 = i / l * Math.PI * 2;
+      const p2 = j / l * Math.PI * 2;
+      positions.push(Math.cos(p1), Math.sin(p1), 1, Math.cos(p2), Math.sin(p2), 1);
+    }
+
+    geometry.setAttribute('position', new Float32BufferAttribute(positions, 3));
+    const material = new LineBasicMaterial({
+      fog: false,
+      toneMapped: false
+    });
+    this.cone = new LineSegments(geometry, material);
+    this.add(this.cone);
+    this.update();
+  }
+
+  dispose() {
+    this.cone.geometry.dispose();
+    this.cone.material.dispose();
+  }
+
+  update() {
+    this.light.updateMatrixWorld();
+    const coneLength = this.light.distance ? this.light.distance : 1000;
+    const coneWidth = coneLength * Math.tan(this.light.angle);
+    this.cone.scale.set(coneWidth, coneWidth, coneLength);
+
+    _vector$9.setFromMatrixPosition(this.light.target.matrixWorld);
+
+    this.cone.lookAt(_vector$9);
+
+    if (this.color !== undefined) {
+      this.cone.material.color.set(this.color);
+    } else {
+      this.cone.material.color.copy(this.light.color);
+    }
+  }
+
+}
+
+exports.SpotLightHelper = SpotLightHelper;
+
+const _vector$a =
+/*@__PURE__*/
+new Vector3();
+
+const _boneMatrix =
+/*@__PURE__*/
+new Matrix4();
+
+const _matrixWorldInv =
+/*@__PURE__*/
+new Matrix4();
+
+class SkeletonHelper extends LineSegments {
+  constructor(object) {
+    const bones = getBoneList(object);
+    const geometry = new BufferGeometry();
+    const vertices = [];
+    const colors = [];
+    const color1 = new Color(0, 0, 1);
+    const color2 = new Color(0, 1, 0);
+
+    for (let i = 0; i < bones.length; i++) {
+      const bone = bones[i];
+
+      if (bone.parent && bone.parent.isBone) {
+        vertices.push(0, 0, 0);
+        vertices.push(0, 0, 0);
+        colors.push(color1.r, color1.g, color1.b);
+        colors.push(color2.r, color2.g, color2.b);
+      }
+    }
+
+    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
+    const material = new LineBasicMaterial({
+      vertexColors: true,
+      depthTest: false,
+      depthWrite: false,
+      toneMapped: false,
+      transparent: true
+    });
+    super(geometry, material);
+    this.type = 'SkeletonHelper';
+    this.isSkeletonHelper = true;
+    this.root = object;
+    this.bones = bones;
+    this.matrix = object.matrixWorld;
+    this.matrixAutoUpdate = false;
+  }
+
+  updateMatrixWorld(force) {
+    const bones = this.bones;
+    const geometry = this.geometry;
+    const position = geometry.getAttribute('position');
+
+    _matrixWorldInv.copy(this.root.matrixWorld).invert();
+
+    for (let i = 0, j = 0; i < bones.length; i++) {
+      const bone = bones[i];
+
+      if (bone.parent && bone.parent.isBone) {
+        _boneMatrix.multiplyMatrices(_matrixWorldInv, bone.matrixWorld);
+
+        _vector$a.setFromMatrixPosition(_boneMatrix);
+
+        position.setXYZ(j, _vector$a.x, _vector$a.y, _vector$a.z);
+
+        _boneMatrix.multiplyMatrices(_matrixWorldInv, bone.parent.matrixWorld);
+
+        _vector$a.setFromMatrixPosition(_boneMatrix);
+
+        position.setXYZ(j + 1, _vector$a.x, _vector$a.y, _vector$a.z);
+        j += 2;
+      }
+    }
+
+    geometry.getAttribute('position').needsUpdate = true;
+    super.updateMatrixWorld(force);
+  }
+
+}
+
+exports.SkeletonHelper = SkeletonHelper;
+
+function getBoneList(object) {
+  const boneList = [];
+
+  if (object && object.isBone) {
+    boneList.push(object);
+  }
+
+  for (let i = 0; i < object.children.length; i++) {
+    boneList.push.apply(boneList, getBoneList(object.children[i]));
+  }
+
+  return boneList;
+}
+
+class PointLightHelper extends Mesh {
+  constructor(light, sphereSize, color) {
+    const geometry = new SphereGeometry(sphereSize, 4, 2);
+    const material = new MeshBasicMaterial({
+      wireframe: true,
+      fog: false,
+      toneMapped: false
+    });
+    super(geometry, material);
+    this.light = light;
+    this.light.updateMatrixWorld();
+    this.color = color;
+    this.type = 'PointLightHelper';
+    this.matrix = this.light.matrixWorld;
+    this.matrixAutoUpdate = false;
+    this.update();
+    /*
+    // TODO: delete this comment?
+    const distanceGeometry = new THREE.IcosahedronBufferGeometry( 1, 2 );
+    const distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );
+    this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
+    this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );
+    const d = light.distance;
+    if ( d === 0.0 ) {
+    	this.lightDistance.visible = false;
+    } else {
+    	this.lightDistance.scale.set( d, d, d );
+    }
+    this.add( this.lightDistance );
+    */
+  }
+
+  dispose() {
+    this.geometry.dispose();
+    this.material.dispose();
+  }
+
+  update() {
+    if (this.color !== undefined) {
+      this.material.color.set(this.color);
+    } else {
+      this.material.color.copy(this.light.color);
+    }
+    /*
+    const d = this.light.distance;
+    	if ( d === 0.0 ) {
+    		this.lightDistance.visible = false;
+    	} else {
+    		this.lightDistance.visible = true;
+    	this.lightDistance.scale.set( d, d, d );
+    	}
+    */
+
+  }
+
+}
+
+exports.PointLightHelper = PointLightHelper;
+
+const _vector$b =
+/*@__PURE__*/
+new Vector3();
+
+const _color1 =
+/*@__PURE__*/
+new Color();
+
+const _color2 =
+/*@__PURE__*/
+new Color();
+
+class HemisphereLightHelper extends Object3D {
+  constructor(light, size, color) {
+    super();
+    this.light = light;
+    this.light.updateMatrixWorld();
+    this.matrix = light.matrixWorld;
+    this.matrixAutoUpdate = false;
+    this.color = color;
+    const geometry = new OctahedronGeometry(size);
+    geometry.rotateY(Math.PI * 0.5);
+    this.material = new MeshBasicMaterial({
+      wireframe: true,
+      fog: false,
+      toneMapped: false
+    });
+    if (this.color === undefined) this.material.vertexColors = true;
+    const position = geometry.getAttribute('position');
+    const colors = new Float32Array(position.count * 3);
+    geometry.setAttribute('color', new BufferAttribute(colors, 3));
+    this.add(new Mesh(geometry, this.material));
+    this.update();
+  }
+
+  dispose() {
+    this.children[0].geometry.dispose();
+    this.children[0].material.dispose();
+  }
+
+  update() {
+    const mesh = this.children[0];
+
+    if (this.color !== undefined) {
+      this.material.color.set(this.color);
+    } else {
+      const colors = mesh.geometry.getAttribute('color');
+
+      _color1.copy(this.light.color);
+
+      _color2.copy(this.light.groundColor);
+
+      for (let i = 0, l = colors.count; i < l; i++) {
+        const color = i < l / 2 ? _color1 : _color2;
+        colors.setXYZ(i, color.r, color.g, color.b);
+      }
+
+      colors.needsUpdate = true;
+    }
+
+    mesh.lookAt(_vector$b.setFromMatrixPosition(this.light.matrixWorld).negate());
+  }
+
+}
+
+exports.HemisphereLightHelper = HemisphereLightHelper;
+
+class GridHelper extends LineSegments {
+  constructor(size = 10, divisions = 10, color1 = 0x444444, color2 = 0x888888) {
+    color1 = new Color(color1);
+    color2 = new Color(color2);
+    const center = divisions / 2;
+    const step = size / divisions;
+    const halfSize = size / 2;
+    const vertices = [],
+          colors = [];
+
+    for (let i = 0, j = 0, k = -halfSize; i <= divisions; i++, k += step) {
+      vertices.push(-halfSize, 0, k, halfSize, 0, k);
+      vertices.push(k, 0, -halfSize, k, 0, halfSize);
+      const color = i === center ? color1 : color2;
+      color.toArray(colors, j);
+      j += 3;
+      color.toArray(colors, j);
+      j += 3;
+      color.toArray(colors, j);
+      j += 3;
+      color.toArray(colors, j);
+      j += 3;
+    }
+
+    const geometry = new BufferGeometry();
+    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
+    const material = new LineBasicMaterial({
+      vertexColors: true,
+      toneMapped: false
+    });
+    super(geometry, material);
+    this.type = 'GridHelper';
+  }
+
+}
+
+exports.GridHelper = GridHelper;
+
+class PolarGridHelper extends LineSegments {
+  constructor(radius = 10, radials = 16, circles = 8, divisions = 64, color1 = 0x444444, color2 = 0x888888) {
+    color1 = new Color(color1);
+    color2 = new Color(color2);
+    const vertices = [];
+    const colors = []; // create the radials
+
+    for (let i = 0; i <= radials; i++) {
+      const v = i / radials * (Math.PI * 2);
+      const x = Math.sin(v) * radius;
+      const z = Math.cos(v) * radius;
+      vertices.push(0, 0, 0);
+      vertices.push(x, 0, z);
+      const color = i & 1 ? color1 : color2;
+      colors.push(color.r, color.g, color.b);
+      colors.push(color.r, color.g, color.b);
+    } // create the circles
+
+
+    for (let i = 0; i <= circles; i++) {
+      const color = i & 1 ? color1 : color2;
+      const r = radius - radius / circles * i;
+
+      for (let j = 0; j < divisions; j++) {
+        // first vertex
+        let v = j / divisions * (Math.PI * 2);
+        let x = Math.sin(v) * r;
+        let z = Math.cos(v) * r;
+        vertices.push(x, 0, z);
+        colors.push(color.r, color.g, color.b); // second vertex
+
+        v = (j + 1) / divisions * (Math.PI * 2);
+        x = Math.sin(v) * r;
+        z = Math.cos(v) * r;
+        vertices.push(x, 0, z);
+        colors.push(color.r, color.g, color.b);
+      }
+    }
+
+    const geometry = new BufferGeometry();
+    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
+    const material = new LineBasicMaterial({
+      vertexColors: true,
+      toneMapped: false
+    });
+    super(geometry, material);
+    this.type = 'PolarGridHelper';
+  }
+
+}
+
+exports.PolarGridHelper = PolarGridHelper;
+
+const _v1$6 =
+/*@__PURE__*/
+new Vector3();
+
+const _v2$3 =
+/*@__PURE__*/
+new Vector3();
+
+const _v3$1 =
+/*@__PURE__*/
+new Vector3();
+
+class DirectionalLightHelper extends Object3D {
+  constructor(light, size, color) {
+    super();
+    this.light = light;
+    this.light.updateMatrixWorld();
+    this.matrix = light.matrixWorld;
+    this.matrixAutoUpdate = false;
+    this.color = color;
+    if (size === undefined) size = 1;
+    let geometry = new BufferGeometry();
+    geometry.setAttribute('position', new Float32BufferAttribute([-size, size, 0, size, size, 0, size, -size, 0, -size, -size, 0, -size, size, 0], 3));
+    const material = new LineBasicMaterial({
+      fog: false,
+      toneMapped: false
+    });
+    this.lightPlane = new Line(geometry, material);
+    this.add(this.lightPlane);
+    geometry = new BufferGeometry();
+    geometry.setAttribute('position', new Float32BufferAttribute([0, 0, 0, 0, 0, 1], 3));
+    this.targetLine = new Line(geometry, material);
+    this.add(this.targetLine);
+    this.update();
+  }
+
+  dispose() {
+    this.lightPlane.geometry.dispose();
+    this.lightPlane.material.dispose();
+    this.targetLine.geometry.dispose();
+    this.targetLine.material.dispose();
+  }
+
+  update() {
+    _v1$6.setFromMatrixPosition(this.light.matrixWorld);
+
+    _v2$3.setFromMatrixPosition(this.light.target.matrixWorld);
+
+    _v3$1.subVectors(_v2$3, _v1$6);
+
+    this.lightPlane.lookAt(_v2$3);
+
+    if (this.color !== undefined) {
+      this.lightPlane.material.color.set(this.color);
+      this.targetLine.material.color.set(this.color);
+    } else {
+      this.lightPlane.material.color.copy(this.light.color);
+      this.targetLine.material.color.copy(this.light.color);
+    }
+
+    this.targetLine.lookAt(_v2$3);
+    this.targetLine.scale.z = _v3$1.length();
+  }
+
+}
+
+exports.DirectionalLightHelper = DirectionalLightHelper;
+
+const _vector$c =
+/*@__PURE__*/
+new Vector3();
+
+const _camera =
+/*@__PURE__*/
+new Camera();
+/**
+ *	- shows frustum, line of sight and up of the camera
+ *	- suitable for fast updates
+ * 	- based on frustum visualization in lightgl.js shadowmap example
+ *		http://evanw.github.com/lightgl.js/tests/shadowmap.html
+ */
+
+
+class CameraHelper extends LineSegments {
+  constructor(camera) {
+    const geometry = new BufferGeometry();
+    const material = new LineBasicMaterial({
+      color: 0xffffff,
+      vertexColors: true,
+      toneMapped: false
+    });
+    const vertices = [];
+    const colors = [];
+    const pointMap = {}; // colors
+
+    const colorFrustum = new Color(0xffaa00);
+    const colorCone = new Color(0xff0000);
+    const colorUp = new Color(0x00aaff);
+    const colorTarget = new Color(0xffffff);
+    const colorCross = new Color(0x333333); // near
+
+    addLine('n1', 'n2', colorFrustum);
+    addLine('n2', 'n4', colorFrustum);
+    addLine('n4', 'n3', colorFrustum);
+    addLine('n3', 'n1', colorFrustum); // far
+
+    addLine('f1', 'f2', colorFrustum);
+    addLine('f2', 'f4', colorFrustum);
+    addLine('f4', 'f3', colorFrustum);
+    addLine('f3', 'f1', colorFrustum); // sides
+
+    addLine('n1', 'f1', colorFrustum);
+    addLine('n2', 'f2', colorFrustum);
+    addLine('n3', 'f3', colorFrustum);
+    addLine('n4', 'f4', colorFrustum); // cone
+
+    addLine('p', 'n1', colorCone);
+    addLine('p', 'n2', colorCone);
+    addLine('p', 'n3', colorCone);
+    addLine('p', 'n4', colorCone); // up
+
+    addLine('u1', 'u2', colorUp);
+    addLine('u2', 'u3', colorUp);
+    addLine('u3', 'u1', colorUp); // target
+
+    addLine('c', 't', colorTarget);
+    addLine('p', 'c', colorCross); // cross
+
+    addLine('cn1', 'cn2', colorCross);
+    addLine('cn3', 'cn4', colorCross);
+    addLine('cf1', 'cf2', colorCross);
+    addLine('cf3', 'cf4', colorCross);
+
+    function addLine(a, b, color) {
+      addPoint(a, color);
+      addPoint(b, color);
+    }
+
+    function addPoint(id, color) {
+      vertices.push(0, 0, 0);
+      colors.push(color.r, color.g, color.b);
+
+      if (pointMap[id] === undefined) {
+        pointMap[id] = [];
+      }
+
+      pointMap[id].push(vertices.length / 3 - 1);
+    }
+
+    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
+    super(geometry, material);
+    this.type = 'CameraHelper';
+    this.camera = camera;
+    if (this.camera.updateProjectionMatrix) this.camera.updateProjectionMatrix();
+    this.matrix = camera.matrixWorld;
+    this.matrixAutoUpdate = false;
+    this.pointMap = pointMap;
+    this.update();
+  }
+
+  update() {
+    const geometry = this.geometry;
+    const pointMap = this.pointMap;
+    const w = 1,
+          h = 1; // we need just camera projection matrix inverse
+    // world matrix must be identity
+
+    _camera.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse); // center / target
+
+
+    setPoint('c', pointMap, geometry, _camera, 0, 0, -1);
+    setPoint('t', pointMap, geometry, _camera, 0, 0, 1); // near
+
+    setPoint('n1', pointMap, geometry, _camera, -w, -h, -1);
+    setPoint('n2', pointMap, geometry, _camera, w, -h, -1);
+    setPoint('n3', pointMap, geometry, _camera, -w, h, -1);
+    setPoint('n4', pointMap, geometry, _camera, w, h, -1); // far
+
+    setPoint('f1', pointMap, geometry, _camera, -w, -h, 1);
+    setPoint('f2', pointMap, geometry, _camera, w, -h, 1);
+    setPoint('f3', pointMap, geometry, _camera, -w, h, 1);
+    setPoint('f4', pointMap, geometry, _camera, w, h, 1); // up
+
+    setPoint('u1', pointMap, geometry, _camera, w * 0.7, h * 1.1, -1);
+    setPoint('u2', pointMap, geometry, _camera, -w * 0.7, h * 1.1, -1);
+    setPoint('u3', pointMap, geometry, _camera, 0, h * 2, -1); // cross
+
+    setPoint('cf1', pointMap, geometry, _camera, -w, 0, 1);
+    setPoint('cf2', pointMap, geometry, _camera, w, 0, 1);
+    setPoint('cf3', pointMap, geometry, _camera, 0, -h, 1);
+    setPoint('cf4', pointMap, geometry, _camera, 0, h, 1);
+    setPoint('cn1', pointMap, geometry, _camera, -w, 0, -1);
+    setPoint('cn2', pointMap, geometry, _camera, w, 0, -1);
+    setPoint('cn3', pointMap, geometry, _camera, 0, -h, -1);
+    setPoint('cn4', pointMap, geometry, _camera, 0, h, -1);
+    geometry.getAttribute('position').needsUpdate = true;
+  }
+
+}
+
+exports.CameraHelper = CameraHelper;
+
+function setPoint(point, pointMap, geometry, camera, x, y, z) {
+  _vector$c.set(x, y, z).unproject(camera);
+
+  const points = pointMap[point];
+
+  if (points !== undefined) {
+    const position = geometry.getAttribute('position');
+
+    for (let i = 0, l = points.length; i < l; i++) {
+      position.setXYZ(points[i], _vector$c.x, _vector$c.y, _vector$c.z);
+    }
+  }
+}
+
+const _box$3 =
+/*@__PURE__*/
+new Box3();
+
+class BoxHelper extends LineSegments {
+  constructor(object, color = 0xffff00) {
+    const indices = new Uint16Array([0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7]);
+    const positions = new Float32Array(8 * 3);
+    const geometry = new BufferGeometry();
+    geometry.setIndex(new BufferAttribute(indices, 1));
+    geometry.setAttribute('position', new BufferAttribute(positions, 3));
+    super(geometry, new LineBasicMaterial({
+      color: color,
+      toneMapped: false
+    }));
+    this.object = object;
+    this.type = 'BoxHelper';
+    this.matrixAutoUpdate = false;
+    this.update();
+  }
+
+  update(object) {
+    if (object !== undefined) {
+      console.warn('THREE.BoxHelper: .update() has no longer arguments.');
+    }
+
+    if (this.object !== undefined) {
+      _box$3.setFromObject(this.object);
+    }
+
+    if (_box$3.isEmpty()) return;
+    const min = _box$3.min;
+    const max = _box$3.max;
+    /*
+    	5____4
+    1/___0/|
+    | 6__|_7
+    2/___3/
+    	0: max.x, max.y, max.z
+    1: min.x, max.y, max.z
+    2: min.x, min.y, max.z
+    3: max.x, min.y, max.z
+    4: max.x, max.y, min.z
+    5: min.x, max.y, min.z
+    6: min.x, min.y, min.z
+    7: max.x, min.y, min.z
+    */
+
+    const position = this.geometry.attributes.position;
+    const array = position.array;
+    array[0] = max.x;
+    array[1] = max.y;
+    array[2] = max.z;
+    array[3] = min.x;
+    array[4] = max.y;
+    array[5] = max.z;
+    array[6] = min.x;
+    array[7] = min.y;
+    array[8] = max.z;
+    array[9] = max.x;
+    array[10] = min.y;
+    array[11] = max.z;
+    array[12] = max.x;
+    array[13] = max.y;
+    array[14] = min.z;
+    array[15] = min.x;
+    array[16] = max.y;
+    array[17] = min.z;
+    array[18] = min.x;
+    array[19] = min.y;
+    array[20] = min.z;
+    array[21] = max.x;
+    array[22] = min.y;
+    array[23] = min.z;
+    position.needsUpdate = true;
+    this.geometry.computeBoundingSphere();
+  }
+
+  setFromObject(object) {
+    this.object = object;
+    this.update();
+    return this;
+  }
+
+  copy(source) {
+    LineSegments.prototype.copy.call(this, source);
+    this.object = source.object;
+    return this;
+  }
+
+}
+
+exports.BoxHelper = BoxHelper;
+
+class Box3Helper extends LineSegments {
+  constructor(box, color = 0xffff00) {
+    const indices = new Uint16Array([0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7]);
+    const positions = [1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, -1];
+    const geometry = new BufferGeometry();
+    geometry.setIndex(new BufferAttribute(indices, 1));
+    geometry.setAttribute('position', new Float32BufferAttribute(positions, 3));
+    super(geometry, new LineBasicMaterial({
+      color: color,
+      toneMapped: false
+    }));
+    this.box = box;
+    this.type = 'Box3Helper';
+    this.geometry.computeBoundingSphere();
+  }
+
+  updateMatrixWorld(force) {
+    const box = this.box;
+    if (box.isEmpty()) return;
+    box.getCenter(this.position);
+    box.getSize(this.scale);
+    this.scale.multiplyScalar(0.5);
+    super.updateMatrixWorld(force);
+  }
+
+}
+
+exports.Box3Helper = Box3Helper;
+
+class PlaneHelper extends Line {
+  constructor(plane, size = 1, hex = 0xffff00) {
+    const color = hex;
+    const positions = [1, -1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0];
+    const geometry = new BufferGeometry();
+    geometry.setAttribute('position', new Float32BufferAttribute(positions, 3));
+    geometry.computeBoundingSphere();
+    super(geometry, new LineBasicMaterial({
+      color: color,
+      toneMapped: false
+    }));
+    this.type = 'PlaneHelper';
+    this.plane = plane;
+    this.size = size;
+    const positions2 = [1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, -1, -1, 1, 1, -1, 1];
+    const geometry2 = new BufferGeometry();
+    geometry2.setAttribute('position', new Float32BufferAttribute(positions2, 3));
+    geometry2.computeBoundingSphere();
+    this.add(new Mesh(geometry2, new MeshBasicMaterial({
+      color: color,
+      opacity: 0.2,
+      transparent: true,
+      depthWrite: false,
+      toneMapped: false
+    })));
+  }
+
+  updateMatrixWorld(force) {
+    let scale = -this.plane.constant;
+    if (Math.abs(scale) < 1e-8) scale = 1e-8; // sign does not matter
+
+    this.scale.set(0.5 * this.size, 0.5 * this.size, scale);
+    this.children[0].material.side = scale < 0 ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here
+
+    this.lookAt(this.plane.normal);
+    super.updateMatrixWorld(force);
+  }
+
+}
+
+exports.PlaneHelper = PlaneHelper;
+
+const _axis =
+/*@__PURE__*/
+new Vector3();
+
+let _lineGeometry, _coneGeometry;
+
+class ArrowHelper extends Object3D {
+  // dir is assumed to be normalized
+  constructor(dir = new Vector3(0, 0, 1), origin = new Vector3(0, 0, 0), length = 1, color = 0xffff00, headLength = length * 0.2, headWidth = headLength * 0.2) {
+    super();
+    this.type = 'ArrowHelper';
+
+    if (_lineGeometry === undefined) {
+      _lineGeometry = new BufferGeometry();
+
+      _lineGeometry.setAttribute('position', new Float32BufferAttribute([0, 0, 0, 0, 1, 0], 3));
+
+      _coneGeometry = new CylinderGeometry(0, 0.5, 1, 5, 1);
+
+      _coneGeometry.translate(0, -0.5, 0);
+    }
+
+    this.position.copy(origin);
+    this.line = new Line(_lineGeometry, new LineBasicMaterial({
+      color: color,
+      toneMapped: false
+    }));
+    this.line.matrixAutoUpdate = false;
+    this.add(this.line);
+    this.cone = new Mesh(_coneGeometry, new MeshBasicMaterial({
+      color: color,
+      toneMapped: false
+    }));
+    this.cone.matrixAutoUpdate = false;
+    this.add(this.cone);
+    this.setDirection(dir);
+    this.setLength(length, headLength, headWidth);
+  }
+
+  setDirection(dir) {
+    // dir is assumed to be normalized
+    if (dir.y > 0.99999) {
+      this.quaternion.set(0, 0, 0, 1);
+    } else if (dir.y < -0.99999) {
+      this.quaternion.set(1, 0, 0, 0);
+    } else {
+      _axis.set(dir.z, 0, -dir.x).normalize();
+
+      const radians = Math.acos(dir.y);
+      this.quaternion.setFromAxisAngle(_axis, radians);
+    }
+  }
+
+  setLength(length, headLength = length * 0.2, headWidth = headLength * 0.2) {
+    this.line.scale.set(1, Math.max(0.0001, length - headLength), 1); // see #17458
+
+    this.line.updateMatrix();
+    this.cone.scale.set(headWidth, headLength, headWidth);
+    this.cone.position.y = length;
+    this.cone.updateMatrix();
+  }
+
+  setColor(color) {
+    this.line.material.color.set(color);
+    this.cone.material.color.set(color);
+  }
+
+  copy(source) {
+    super.copy(source, false);
+    this.line.copy(source.line);
+    this.cone.copy(source.cone);
+    return this;
+  }
+
+}
+
+exports.ArrowHelper = ArrowHelper;
+
+class AxesHelper extends LineSegments {
+  constructor(size = 1) {
+    const vertices = [0, 0, 0, size, 0, 0, 0, 0, 0, 0, size, 0, 0, 0, 0, 0, 0, size];
+    const colors = [1, 0, 0, 1, 0.6, 0, 0, 1, 0, 0.6, 1, 0, 0, 0, 1, 0, 0.6, 1];
+    const geometry = new BufferGeometry();
+    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
+    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
+    const material = new LineBasicMaterial({
+      vertexColors: true,
+      toneMapped: false
+    });
+    super(geometry, material);
+    this.type = 'AxesHelper';
+  }
+
+}
+
+exports.AxesHelper = AxesHelper;
+
+const _floatView = new Float32Array(1);
+
+const _int32View = new Int32Array(_floatView.buffer);
+
+const DataUtils = {
+  // Converts float32 to float16 (stored as uint16 value).
+  toHalfFloat: function (val) {
+    // Source: http://gamedev.stackexchange.com/questions/17326/conversion-of-a-number-from-single-precision-floating-point-representation-to-a/17410#17410
+
+    /* This method is faster than the OpenEXR implementation (very often
+    * used, eg. in Ogre), with the additional benefit of rounding, inspired
+    * by James Tursa?s half-precision code. */
+    _floatView[0] = val;
+    const x = _int32View[0];
+    let bits = x >> 16 & 0x8000;
+    /* Get the sign */
+
+    let m = x >> 12 & 0x07ff;
+    /* Keep one extra bit for rounding */
+
+    const e = x >> 23 & 0xff;
+    /* Using int is faster here */
+
+    /* If zero, or denormal, or exponent underflows too much for a denormal
+    	* half, return signed zero. */
+
+    if (e < 103) return bits;
+    /* If NaN, return NaN. If Inf or exponent overflow, return Inf. */
+
+    if (e > 142) {
+      bits |= 0x7c00;
+      /* If exponent was 0xff and one mantissa bit was set, it means NaN,
+      			* not Inf, so make sure we set one mantissa bit too. */
+
+      bits |= (e == 255 ? 0 : 1) && x & 0x007fffff;
+      return bits;
+    }
+    /* If exponent underflows but not too much, return a denormal */
+
+
+    if (e < 113) {
+      m |= 0x0800;
+      /* Extra rounding may overflow and set mantissa to 0 and exponent
+      	* to 1, which is OK. */
+
+      bits |= (m >> 114 - e) + (m >> 113 - e & 1);
+      return bits;
+    }
+
+    bits |= e - 112 << 10 | m >> 1;
+    /* Extra rounding. An overflow will set mantissa to 0 and increment
+    	* the exponent, which is OK. */
+
+    bits += m & 1;
+    return bits;
+  }
+};
+exports.DataUtils = DataUtils;
+const LOD_MIN = 4;
+const LOD_MAX = 8;
+const SIZE_MAX = Math.pow(2, LOD_MAX); // The standard deviations (radians) associated with the extra mips. These are
+// chosen to approximate a Trowbridge-Reitz distribution function times the
+// geometric shadowing function. These sigma values squared must match the
+// variance #defines in cube_uv_reflection_fragment.glsl.js.
+
+const EXTRA_LOD_SIGMA = [0.125, 0.215, 0.35, 0.446, 0.526, 0.582];
+const TOTAL_LODS = LOD_MAX - LOD_MIN + 1 + EXTRA_LOD_SIGMA.length; // The maximum length of the blur for loop. Smaller sigmas will use fewer
+// samples and exit early, but not recompile the shader.
+
+const MAX_SAMPLES = 20;
+const ENCODINGS = {
+  [LinearEncoding]: 0,
+  [sRGBEncoding]: 1,
+  [RGBEEncoding]: 2,
+  [RGBM7Encoding]: 3,
+  [RGBM16Encoding]: 4,
+  [RGBDEncoding]: 5,
+  [GammaEncoding]: 6
+};
+const backgroundMaterial = new MeshBasicMaterial({
+  side: BackSide,
+  depthWrite: false,
+  depthTest: false
+});
+const backgroundBox = new Mesh(new BoxGeometry(), backgroundMaterial);
+
+const _flatCamera =
+/*@__PURE__*/
+new OrthographicCamera();
+
+const {
+  _lodPlanes,
+  _sizeLods,
+  _sigmas
+} =
+/*@__PURE__*/
+_createPlanes();
+
+const _clearColor =
+/*@__PURE__*/
+new Color();
+
+let _oldTarget = null; // Golden Ratio
+
+const PHI = (1 + Math.sqrt(5)) / 2;
+const INV_PHI = 1 / PHI; // Vertices of a dodecahedron (except the opposites, which represent the
+// same axis), used as axis directions evenly spread on a sphere.
+
+const _axisDirections = [
+/*@__PURE__*/
+new Vector3(1, 1, 1),
+/*@__PURE__*/
+new Vector3(-1, 1, 1),
+/*@__PURE__*/
+new Vector3(1, 1, -1),
+/*@__PURE__*/
+new Vector3(-1, 1, -1),
+/*@__PURE__*/
+new Vector3(0, PHI, INV_PHI),
+/*@__PURE__*/
+new Vector3(0, PHI, -INV_PHI),
+/*@__PURE__*/
+new Vector3(INV_PHI, 0, PHI),
+/*@__PURE__*/
+new Vector3(-INV_PHI, 0, PHI),
+/*@__PURE__*/
+new Vector3(PHI, INV_PHI, 0),
+/*@__PURE__*/
+new Vector3(-PHI, INV_PHI, 0)];
+/**
+ * This class generates a Prefiltered, Mipmapped Radiance Environment Map
+ * (PMREM) from a cubeMap environment texture. This allows different levels of
+ * blur to be quickly accessed based on material roughness. It is packed into a
+ * special CubeUV format that allows us to perform custom interpolation so that
+ * we can support nonlinear formats such as RGBE. Unlike a traditional mipmap
+ * chain, it only goes down to the LOD_MIN level (above), and then creates extra
+ * even more filtered 'mips' at the same LOD_MIN resolution, associated with
+ * higher roughness levels. In this way we maintain resolution to smoothly
+ * interpolate diffuse lighting while limiting sampling computation.
+ */
+
+function convertLinearToRGBE(color) {
+  const maxComponent = Math.max(color.r, color.g, color.b);
+  const fExp = Math.min(Math.max(Math.ceil(Math.log2(maxComponent)), -128.0), 127.0);
+  color.multiplyScalar(Math.pow(2.0, -fExp));
+  const alpha = (fExp + 128.0) / 255.0;
+  return alpha;
+}
+
+class PMREMGenerator {
+  constructor(renderer) {
+    this._renderer = renderer;
+    this._pingPongRenderTarget = null;
+    this._blurMaterial = _getBlurShader(MAX_SAMPLES);
+    this._equirectShader = null;
+    this._cubemapShader = null;
+
+    this._compileMaterial(this._blurMaterial);
+  }
+  /**
+   * Generates a PMREM from a supplied Scene, which can be faster than using an
+   * image if networking bandwidth is low. Optional sigma specifies a blur radius
+   * in radians to be applied to the scene before PMREM generation. Optional near
+   * and far planes ensure the scene is rendered in its entirety (the cubeCamera
+   * is placed at the origin).
+   */
+
+
+  fromScene(scene, sigma = 0, near = 0.1, far = 100) {
+    _oldTarget = this._renderer.getRenderTarget();
+
+    const cubeUVRenderTarget = this._allocateTargets();
+
+    this._sceneToCubeUV(scene, near, far, cubeUVRenderTarget);
+
+    if (sigma > 0) {
+      this._blur(cubeUVRenderTarget, 0, 0, sigma);
+    }
+
+    this._applyPMREM(cubeUVRenderTarget);
+
+    this._cleanup(cubeUVRenderTarget);
+
+    return cubeUVRenderTarget;
+  }
+  /**
+   * Generates a PMREM from an equirectangular texture, which can be either LDR
+   * (RGBFormat) or HDR (RGBEFormat). The ideal input image size is 1k (1024 x 512),
+   * as this matches best with the 256 x 256 cubemap output.
+   */
+
+
+  fromEquirectangular(equirectangular) {
+    return this._fromTexture(equirectangular);
+  }
+  /**
+   * Generates a PMREM from an cubemap texture, which can be either LDR
+   * (RGBFormat) or HDR (RGBEFormat). The ideal input cube size is 256 x 256,
+   * as this matches best with the 256 x 256 cubemap output.
+   */
+
+
+  fromCubemap(cubemap) {
+    return this._fromTexture(cubemap);
+  }
+  /**
+   * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during
+   * your texture's network fetch for increased concurrency.
+   */
+
+
+  compileCubemapShader() {
+    if (this._cubemapShader === null) {
+      this._cubemapShader = _getCubemapShader();
+
+      this._compileMaterial(this._cubemapShader);
+    }
+  }
+  /**
+   * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during
+   * your texture's network fetch for increased concurrency.
+   */
+
+
+  compileEquirectangularShader() {
+    if (this._equirectShader === null) {
+      this._equirectShader = _getEquirectShader();
+
+      this._compileMaterial(this._equirectShader);
+    }
+  }
+  /**
+   * Disposes of the PMREMGenerator's internal memory. Note that PMREMGenerator is a static class,
+   * so you should not need more than one PMREMGenerator object. If you do, calling dispose() on
+   * one of them will cause any others to also become unusable.
+   */
+
+
+  dispose() {
+    this._blurMaterial.dispose();
+
+    if (this._cubemapShader !== null) this._cubemapShader.dispose();
+    if (this._equirectShader !== null) this._equirectShader.dispose();
+
+    for (let i = 0; i < _lodPlanes.length; i++) {
+      _lodPlanes[i].dispose();
+    }
+  } // private interface
+
+
+  _cleanup(outputTarget) {
+    this._pingPongRenderTarget.dispose();
+
+    this._renderer.setRenderTarget(_oldTarget);
+
+    outputTarget.scissorTest = false;
+
+    _setViewport(outputTarget, 0, 0, outputTarget.width, outputTarget.height);
+  }
+
+  _fromTexture(texture) {
+    _oldTarget = this._renderer.getRenderTarget();
+
+    const cubeUVRenderTarget = this._allocateTargets(texture);
+
+    this._textureToCubeUV(texture, cubeUVRenderTarget);
+
+    this._applyPMREM(cubeUVRenderTarget);
+
+    this._cleanup(cubeUVRenderTarget);
+
+    return cubeUVRenderTarget;
+  }
+
+  _allocateTargets(texture) {
+    // warning: null texture is valid
+    const params = {
+      magFilter: NearestFilter,
+      minFilter: NearestFilter,
+      generateMipmaps: false,
+      type: UnsignedByteType,
+      format: RGBEFormat,
+      encoding: _isLDR(texture) ? texture.encoding : RGBEEncoding,
+      depthBuffer: false
+    };
+
+    const cubeUVRenderTarget = _createRenderTarget(params);
+
+    cubeUVRenderTarget.depthBuffer = texture ? false : true;
+    this._pingPongRenderTarget = _createRenderTarget(params);
+    return cubeUVRenderTarget;
+  }
+
+  _compileMaterial(material) {
+    const tmpMesh = new Mesh(_lodPlanes[0], material);
+
+    this._renderer.compile(tmpMesh, _flatCamera);
+  }
+
+  _sceneToCubeUV(scene, near, far, cubeUVRenderTarget) {
+    const fov = 90;
+    const aspect = 1;
+    const cubeCamera = new PerspectiveCamera(fov, aspect, near, far);
+    const upSign = [1, -1, 1, 1, 1, 1];
+    const forwardSign = [1, 1, 1, -1, -1, -1];
+    const renderer = this._renderer;
+    const originalAutoClear = renderer.autoClear;
+    const outputEncoding = renderer.outputEncoding;
+    const toneMapping = renderer.toneMapping;
+    renderer.getClearColor(_clearColor);
+    renderer.toneMapping = NoToneMapping;
+    renderer.outputEncoding = LinearEncoding;
+    renderer.autoClear = false;
+    let useSolidColor = false;
+    const background = scene.background;
+
+    if (background) {
+      if (background.isColor) {
+        backgroundMaterial.color.copy(background).convertSRGBToLinear();
+        scene.background = null;
+        const alpha = convertLinearToRGBE(backgroundMaterial.color);
+        backgroundMaterial.opacity = alpha;
+        useSolidColor = true;
+      }
+    } else {
+      backgroundMaterial.color.copy(_clearColor).convertSRGBToLinear();
+      const alpha = convertLinearToRGBE(backgroundMaterial.color);
+      backgroundMaterial.opacity = alpha;
+      useSolidColor = true;
+    }
+
+    for (let i = 0; i < 6; i++) {
+      const col = i % 3;
+
+      if (col == 0) {
+        cubeCamera.up.set(0, upSign[i], 0);
+        cubeCamera.lookAt(forwardSign[i], 0, 0);
+      } else if (col == 1) {
+        cubeCamera.up.set(0, 0, upSign[i]);
+        cubeCamera.lookAt(0, forwardSign[i], 0);
+      } else {
+        cubeCamera.up.set(0, upSign[i], 0);
+        cubeCamera.lookAt(0, 0, forwardSign[i]);
+      }
+
+      _setViewport(cubeUVRenderTarget, col * SIZE_MAX, i > 2 ? SIZE_MAX : 0, SIZE_MAX, SIZE_MAX);
+
+      renderer.setRenderTarget(cubeUVRenderTarget);
+
+      if (useSolidColor) {
+        renderer.render(backgroundBox, cubeCamera);
+      }
+
+      renderer.render(scene, cubeCamera);
+    }
+
+    renderer.toneMapping = toneMapping;
+    renderer.outputEncoding = outputEncoding;
+    renderer.autoClear = originalAutoClear;
+  }
+
+  _textureToCubeUV(texture, cubeUVRenderTarget) {
+    const renderer = this._renderer;
+
+    if (texture.isCubeTexture) {
+      if (this._cubemapShader == null) {
+        this._cubemapShader = _getCubemapShader();
+      }
+    } else {
+      if (this._equirectShader == null) {
+        this._equirectShader = _getEquirectShader();
+      }
+    }
+
+    const material = texture.isCubeTexture ? this._cubemapShader : this._equirectShader;
+    const mesh = new Mesh(_lodPlanes[0], material);
+    const uniforms = material.uniforms;
+    uniforms['envMap'].value = texture;
+
+    if (!texture.isCubeTexture) {
+      uniforms['texelSize'].value.set(1.0 / texture.image.width, 1.0 / texture.image.height);
+    }
+
+    uniforms['inputEncoding'].value = ENCODINGS[texture.encoding];
+    uniforms['outputEncoding'].value = ENCODINGS[cubeUVRenderTarget.texture.encoding];
+
+    _setViewport(cubeUVRenderTarget, 0, 0, 3 * SIZE_MAX, 2 * SIZE_MAX);
+
+    renderer.setRenderTarget(cubeUVRenderTarget);
+    renderer.render(mesh, _flatCamera);
+  }
+
+  _applyPMREM(cubeUVRenderTarget) {
+    const renderer = this._renderer;
+    const autoClear = renderer.autoClear;
+    renderer.autoClear = false;
+
+    for (let i = 1; i < TOTAL_LODS; i++) {
+      const sigma = Math.sqrt(_sigmas[i] * _sigmas[i] - _sigmas[i - 1] * _sigmas[i - 1]);
+      const poleAxis = _axisDirections[(i - 1) % _axisDirections.length];
+
+      this._blur(cubeUVRenderTarget, i - 1, i, sigma, poleAxis);
+    }
+
+    renderer.autoClear = autoClear;
+  }
+  /**
+   * This is a two-pass Gaussian blur for a cubemap. Normally this is done
+   * vertically and horizontally, but this breaks down on a cube. Here we apply
+   * the blur latitudinally (around the poles), and then longitudinally (towards
+   * the poles) to approximate the orthogonally-separable blur. It is least
+   * accurate at the poles, but still does a decent job.
+   */
+
+
+  _blur(cubeUVRenderTarget, lodIn, lodOut, sigma, poleAxis) {
+    const pingPongRenderTarget = this._pingPongRenderTarget;
+
+    this._halfBlur(cubeUVRenderTarget, pingPongRenderTarget, lodIn, lodOut, sigma, 'latitudinal', poleAxis);
+
+    this._halfBlur(pingPongRenderTarget, cubeUVRenderTarget, lodOut, lodOut, sigma, 'longitudinal', poleAxis);
+  }
+
+  _halfBlur(targetIn, targetOut, lodIn, lodOut, sigmaRadians, direction, poleAxis) {
+    const renderer = this._renderer;
+    const blurMaterial = this._blurMaterial;
+
+    if (direction !== 'latitudinal' && direction !== 'longitudinal') {
+      console.error('blur direction must be either latitudinal or longitudinal!');
+    } // Number of standard deviations at which to cut off the discrete approximation.
+
+
+    const STANDARD_DEVIATIONS = 3;
+    const blurMesh = new Mesh(_lodPlanes[lodOut], blurMaterial);
+    const blurUniforms = blurMaterial.uniforms;
+    const pixels = _sizeLods[lodIn] - 1;
+    const radiansPerPixel = isFinite(sigmaRadians) ? Math.PI / (2 * pixels) : 2 * Math.PI / (2 * MAX_SAMPLES - 1);
+    const sigmaPixels = sigmaRadians / radiansPerPixel;
+    const samples = isFinite(sigmaRadians) ? 1 + Math.floor(STANDARD_DEVIATIONS * sigmaPixels) : MAX_SAMPLES;
+
+    if (samples > MAX_SAMPLES) {
+      console.warn(`sigmaRadians, ${sigmaRadians}, is too large and will clip, as it requested ${samples} samples when the maximum is set to ${MAX_SAMPLES}`);
+    }
+
+    const weights = [];
+    let sum = 0;
+
+    for (let i = 0; i < MAX_SAMPLES; ++i) {
+      const x = i / sigmaPixels;
+      const weight = Math.exp(-x * x / 2);
+      weights.push(weight);
+
+      if (i == 0) {
+        sum += weight;
+      } else if (i < samples) {
+        sum += 2 * weight;
+      }
+    }
+
+    for (let i = 0; i < weights.length; i++) {
+      weights[i] = weights[i] / sum;
+    }
+
+    blurUniforms['envMap'].value = targetIn.texture;
+    blurUniforms['samples'].value = samples;
+    blurUniforms['weights'].value = weights;
+    blurUniforms['latitudinal'].value = direction === 'latitudinal';
+
+    if (poleAxis) {
+      blurUniforms['poleAxis'].value = poleAxis;
+    }
+
+    blurUniforms['dTheta'].value = radiansPerPixel;
+    blurUniforms['mipInt'].value = LOD_MAX - lodIn;
+    blurUniforms['inputEncoding'].value = ENCODINGS[targetIn.texture.encoding];
+    blurUniforms['outputEncoding'].value = ENCODINGS[targetIn.texture.encoding];
+    const outputSize = _sizeLods[lodOut];
+    const x = 3 * Math.max(0, SIZE_MAX - 2 * outputSize);
+    const y = (lodOut === 0 ? 0 : 2 * SIZE_MAX) + 2 * outputSize * (lodOut > LOD_MAX - LOD_MIN ? lodOut - LOD_MAX + LOD_MIN : 0);
+
+    _setViewport(targetOut, x, y, 3 * outputSize, 2 * outputSize);
+
+    renderer.setRenderTarget(targetOut);
+    renderer.render(blurMesh, _flatCamera);
+  }
+
+}
+
+exports.PMREMGenerator = PMREMGenerator;
+
+function _isLDR(texture) {
+  if (texture === undefined || texture.type !== UnsignedByteType) return false;
+  return texture.encoding === LinearEncoding || texture.encoding === sRGBEncoding || texture.encoding === GammaEncoding;
+}
+
+function _createPlanes() {
+  const _lodPlanes = [];
+  const _sizeLods = [];
+  const _sigmas = [];
+  let lod = LOD_MAX;
+
+  for (let i = 0; i < TOTAL_LODS; i++) {
+    const sizeLod = Math.pow(2, lod);
+
+    _sizeLods.push(sizeLod);
+
+    let sigma = 1.0 / sizeLod;
+
+    if (i > LOD_MAX - LOD_MIN) {
+      sigma = EXTRA_LOD_SIGMA[i - LOD_MAX + LOD_MIN - 1];
+    } else if (i == 0) {
+      sigma = 0;
+    }
+
+    _sigmas.push(sigma);
+
+    const texelSize = 1.0 / (sizeLod - 1);
+    const min = -texelSize / 2;
+    const max = 1 + texelSize / 2;
+    const uv1 = [min, min, max, min, max, max, min, min, max, max, min, max];
+    const cubeFaces = 6;
+    const vertices = 6;
+    const positionSize = 3;
+    const uvSize = 2;
+    const faceIndexSize = 1;
+    const position = new Float32Array(positionSize * vertices * cubeFaces);
+    const uv = new Float32Array(uvSize * vertices * cubeFaces);
+    const faceIndex = new Float32Array(faceIndexSize * vertices * cubeFaces);
+
+    for (let face = 0; face < cubeFaces; face++) {
+      const x = face % 3 * 2 / 3 - 1;
+      const y = face > 2 ? 0 : -1;
+      const coordinates = [x, y, 0, x + 2 / 3, y, 0, x + 2 / 3, y + 1, 0, x, y, 0, x + 2 / 3, y + 1, 0, x, y + 1, 0];
+      position.set(coordinates, positionSize * vertices * face);
+      uv.set(uv1, uvSize * vertices * face);
+      const fill = [face, face, face, face, face, face];
+      faceIndex.set(fill, faceIndexSize * vertices * face);
+    }
+
+    const planes = new BufferGeometry();
+    planes.setAttribute('position', new BufferAttribute(position, positionSize));
+    planes.setAttribute('uv', new BufferAttribute(uv, uvSize));
+    planes.setAttribute('faceIndex', new BufferAttribute(faceIndex, faceIndexSize));
+
+    _lodPlanes.push(planes);
+
+    if (lod > LOD_MIN) {
+      lod--;
+    }
+  }
+
+  return {
+    _lodPlanes,
+    _sizeLods,
+    _sigmas
+  };
+}
+
+function _createRenderTarget(params) {
+  const cubeUVRenderTarget = new WebGLRenderTarget(3 * SIZE_MAX, 3 * SIZE_MAX, params);
+  cubeUVRenderTarget.texture.mapping = CubeUVReflectionMapping;
+  cubeUVRenderTarget.texture.name = 'PMREM.cubeUv';
+  cubeUVRenderTarget.scissorTest = true;
+  return cubeUVRenderTarget;
+}
+
+function _setViewport(target, x, y, width, height) {
+  target.viewport.set(x, y, width, height);
+  target.scissor.set(x, y, width, height);
+}
+
+function _getBlurShader(maxSamples) {
+  const weights = new Float32Array(maxSamples);
+  const poleAxis = new Vector3(0, 1, 0);
+  const shaderMaterial = new RawShaderMaterial({
+    name: 'SphericalGaussianBlur',
+    defines: {
+      'n': maxSamples
+    },
+    uniforms: {
+      'envMap': {
+        value: null
+      },
+      'samples': {
+        value: 1
+      },
+      'weights': {
+        value: weights
+      },
+      'latitudinal': {
+        value: false
+      },
+      'dTheta': {
+        value: 0
+      },
+      'mipInt': {
+        value: 0
+      },
+      'poleAxis': {
+        value: poleAxis
+      },
+      'inputEncoding': {
+        value: ENCODINGS[LinearEncoding]
+      },
+      'outputEncoding': {
+        value: ENCODINGS[LinearEncoding]
+      }
+    },
+    vertexShader: _getCommonVertexShader(),
+    fragmentShader:
+    /* glsl */
+    `
+
+			precision mediump float;
+			precision mediump int;
+
+			varying vec3 vOutputDirection;
+
+			uniform sampler2D envMap;
+			uniform int samples;
+			uniform float weights[ n ];
+			uniform bool latitudinal;
+			uniform float dTheta;
+			uniform float mipInt;
+			uniform vec3 poleAxis;
+
+			${_getEncodings()}
+
+			#define ENVMAP_TYPE_CUBE_UV
+			#include <cube_uv_reflection_fragment>
+
+			vec3 getSample( float theta, vec3 axis ) {
+
+				float cosTheta = cos( theta );
+				// Rodrigues' axis-angle rotation
+				vec3 sampleDirection = vOutputDirection * cosTheta
+					+ cross( axis, vOutputDirection ) * sin( theta )
+					+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );
+
+				return bilinearCubeUV( envMap, sampleDirection, mipInt );
+
+			}
+
+			void main() {
+
+				vec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );
+
+				if ( all( equal( axis, vec3( 0.0 ) ) ) ) {
+
+					axis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );
+
+				}
+
+				axis = normalize( axis );
+
+				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
+				gl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );
+
+				for ( int i = 1; i < n; i++ ) {
+
+					if ( i >= samples ) {
+
+						break;
+
+					}
+
+					float theta = dTheta * float( i );
+					gl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );
+					gl_FragColor.rgb += weights[ i ] * getSample( theta, axis );
+
+				}
+
+				gl_FragColor = linearToOutputTexel( gl_FragColor );
+
+			}
+		`,
+    blending: NoBlending,
+    depthTest: false,
+    depthWrite: false
+  });
+  return shaderMaterial;
+}
+
+function _getEquirectShader() {
+  const texelSize = new Vector2(1, 1);
+  const shaderMaterial = new RawShaderMaterial({
+    name: 'EquirectangularToCubeUV',
+    uniforms: {
+      'envMap': {
+        value: null
+      },
+      'texelSize': {
+        value: texelSize
+      },
+      'inputEncoding': {
+        value: ENCODINGS[LinearEncoding]
+      },
+      'outputEncoding': {
+        value: ENCODINGS[LinearEncoding]
+      }
+    },
+    vertexShader: _getCommonVertexShader(),
+    fragmentShader:
+    /* glsl */
+    `
+
+			precision mediump float;
+			precision mediump int;
+
+			varying vec3 vOutputDirection;
+
+			uniform sampler2D envMap;
+			uniform vec2 texelSize;
+
+			${_getEncodings()}
+
+			#include <common>
+
+			void main() {
+
+				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
+
+				vec3 outputDirection = normalize( vOutputDirection );
+				vec2 uv = equirectUv( outputDirection );
+
+				vec2 f = fract( uv / texelSize - 0.5 );
+				uv -= f * texelSize;
+				vec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;
+				uv.x += texelSize.x;
+				vec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;
+				uv.y += texelSize.y;
+				vec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;
+				uv.x -= texelSize.x;
+				vec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;
+
+				vec3 tm = mix( tl, tr, f.x );
+				vec3 bm = mix( bl, br, f.x );
+				gl_FragColor.rgb = mix( tm, bm, f.y );
+
+				gl_FragColor = linearToOutputTexel( gl_FragColor );
+
+			}
+		`,
+    blending: NoBlending,
+    depthTest: false,
+    depthWrite: false
+  });
+  return shaderMaterial;
+}
+
+function _getCubemapShader() {
+  const shaderMaterial = new RawShaderMaterial({
+    name: 'CubemapToCubeUV',
+    uniforms: {
+      'envMap': {
+        value: null
+      },
+      'inputEncoding': {
+        value: ENCODINGS[LinearEncoding]
+      },
+      'outputEncoding': {
+        value: ENCODINGS[LinearEncoding]
+      }
+    },
+    vertexShader: _getCommonVertexShader(),
+    fragmentShader:
+    /* glsl */
+    `
+
+			precision mediump float;
+			precision mediump int;
+
+			varying vec3 vOutputDirection;
+
+			uniform samplerCube envMap;
+
+			${_getEncodings()}
+
+			void main() {
+
+				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
+				gl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;
+				gl_FragColor = linearToOutputTexel( gl_FragColor );
+
+			}
+		`,
+    blending: NoBlending,
+    depthTest: false,
+    depthWrite: false
+  });
+  return shaderMaterial;
+}
+
+function _getCommonVertexShader() {
+  return (
+    /* glsl */
+    `
+
+		precision mediump float;
+		precision mediump int;
+
+		attribute vec3 position;
+		attribute vec2 uv;
+		attribute float faceIndex;
+
+		varying vec3 vOutputDirection;
+
+		// RH coordinate system; PMREM face-indexing convention
+		vec3 getDirection( vec2 uv, float face ) {
+
+			uv = 2.0 * uv - 1.0;
+
+			vec3 direction = vec3( uv, 1.0 );
+
+			if ( face == 0.0 ) {
+
+				direction = direction.zyx; // ( 1, v, u ) pos x
+
+			} else if ( face == 1.0 ) {
+
+				direction = direction.xzy;
+				direction.xz *= -1.0; // ( -u, 1, -v ) pos y
+
+			} else if ( face == 2.0 ) {
+
+				direction.x *= -1.0; // ( -u, v, 1 ) pos z
+
+			} else if ( face == 3.0 ) {
+
+				direction = direction.zyx;
+				direction.xz *= -1.0; // ( -1, v, -u ) neg x
+
+			} else if ( face == 4.0 ) {
+
+				direction = direction.xzy;
+				direction.xy *= -1.0; // ( -u, -1, v ) neg y
+
+			} else if ( face == 5.0 ) {
+
+				direction.z *= -1.0; // ( u, v, -1 ) neg z
+
+			}
+
+			return direction;
+
+		}
+
+		void main() {
+
+			vOutputDirection = getDirection( uv, faceIndex );
+			gl_Position = vec4( position, 1.0 );
+
+		}
+	`
+  );
+}
+
+function _getEncodings() {
+  return (
+    /* glsl */
+    `
+
+		uniform int inputEncoding;
+		uniform int outputEncoding;
+
+		#include <encodings_pars_fragment>
+
+		vec4 inputTexelToLinear( vec4 value ) {
+
+			if ( inputEncoding == 0 ) {
+
+				return value;
+
+			} else if ( inputEncoding == 1 ) {
+
+				return sRGBToLinear( value );
+
+			} else if ( inputEncoding == 2 ) {
+
+				return RGBEToLinear( value );
+
+			} else if ( inputEncoding == 3 ) {
+
+				return RGBMToLinear( value, 7.0 );
+
+			} else if ( inputEncoding == 4 ) {
+
+				return RGBMToLinear( value, 16.0 );
+
+			} else if ( inputEncoding == 5 ) {
+
+				return RGBDToLinear( value, 256.0 );
+
+			} else {
+
+				return GammaToLinear( value, 2.2 );
+
+			}
+
+		}
+
+		vec4 linearToOutputTexel( vec4 value ) {
+
+			if ( outputEncoding == 0 ) {
+
+				return value;
+
+			} else if ( outputEncoding == 1 ) {
+
+				return LinearTosRGB( value );
+
+			} else if ( outputEncoding == 2 ) {
+
+				return LinearToRGBE( value );
+
+			} else if ( outputEncoding == 3 ) {
+
+				return LinearToRGBM( value, 7.0 );
+
+			} else if ( outputEncoding == 4 ) {
+
+				return LinearToRGBM( value, 16.0 );
+
+			} else if ( outputEncoding == 5 ) {
+
+				return LinearToRGBD( value, 256.0 );
+
+			} else {
+
+				return LinearToGamma( value, 2.2 );
+
+			}
+
+		}
+
+		vec4 envMapTexelToLinear( vec4 color ) {
+
+			return inputTexelToLinear( color );
+
+		}
+	`
+  );
+}
+
+const LineStrip = 0;
+exports.LineStrip = LineStrip;
+const LinePieces = 1;
+exports.LinePieces = LinePieces;
+const NoColors = 0;
+exports.NoColors = NoColors;
+const FaceColors = 1;
+exports.FaceColors = FaceColors;
+const VertexColors = 2;
+exports.VertexColors = VertexColors;
+
+function MeshFaceMaterial(materials) {
+  console.warn('THREE.MeshFaceMaterial has been removed. Use an Array instead.');
+  return materials;
+}
+
+function MultiMaterial(materials = []) {
+  console.warn('THREE.MultiMaterial has been removed. Use an Array instead.');
+  materials.isMultiMaterial = true;
+  materials.materials = materials;
+
+  materials.clone = function () {
+    return materials.slice();
+  };
+
+  return materials;
+}
+
+function PointCloud(geometry, material) {
+  console.warn('THREE.PointCloud has been renamed to THREE.Points.');
+  return new Points(geometry, material);
+}
+
+function Particle(material) {
+  console.warn('THREE.Particle has been renamed to THREE.Sprite.');
+  return new Sprite(material);
+}
+
+function ParticleSystem(geometry, material) {
+  console.warn('THREE.ParticleSystem has been renamed to THREE.Points.');
+  return new Points(geometry, material);
+}
+
+function PointCloudMaterial(parameters) {
+  console.warn('THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.');
+  return new PointsMaterial(parameters);
+}
+
+function ParticleBasicMaterial(parameters) {
+  console.warn('THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.');
+  return new PointsMaterial(parameters);
+}
+
+function ParticleSystemMaterial(parameters) {
+  console.warn('THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.');
+  return new PointsMaterial(parameters);
+}
+
+function Vertex(x, y, z) {
+  console.warn('THREE.Vertex has been removed. Use THREE.Vector3 instead.');
+  return new Vector3(x, y, z);
+} //
+
+
+function DynamicBufferAttribute(array, itemSize) {
+  console.warn('THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead.');
+  return new BufferAttribute(array, itemSize).setUsage(DynamicDrawUsage);
+}
+
+function Int8Attribute(array, itemSize) {
+  console.warn('THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.');
+  return new Int8BufferAttribute(array, itemSize);
+}
+
+function Uint8Attribute(array, itemSize) {
+  console.warn('THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.');
+  return new Uint8BufferAttribute(array, itemSize);
+}
+
+function Uint8ClampedAttribute(array, itemSize) {
+  console.warn('THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.');
+  return new Uint8ClampedBufferAttribute(array, itemSize);
+}
+
+function Int16Attribute(array, itemSize) {
+  console.warn('THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.');
+  return new Int16BufferAttribute(array, itemSize);
+}
+
+function Uint16Attribute(array, itemSize) {
+  console.warn('THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.');
+  return new Uint16BufferAttribute(array, itemSize);
+}
+
+function Int32Attribute(array, itemSize) {
+  console.warn('THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.');
+  return new Int32BufferAttribute(array, itemSize);
+}
+
+function Uint32Attribute(array, itemSize) {
+  console.warn('THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.');
+  return new Uint32BufferAttribute(array, itemSize);
+}
+
+function Float32Attribute(array, itemSize) {
+  console.warn('THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.');
+  return new Float32BufferAttribute(array, itemSize);
+}
+
+function Float64Attribute(array, itemSize) {
+  console.warn('THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.');
+  return new Float64BufferAttribute(array, itemSize);
+} //
+
+
+Curve.create = function (construct, getPoint) {
+  console.log('THREE.Curve.create() has been deprecated');
+  construct.prototype = Object.create(Curve.prototype);
+  construct.prototype.constructor = construct;
+  construct.prototype.getPoint = getPoint;
+  return construct;
+}; //
+
+
+Path.prototype.fromPoints = function (points) {
+  console.warn('THREE.Path: .fromPoints() has been renamed to .setFromPoints().');
+  return this.setFromPoints(points);
+}; //
+
+
+function AxisHelper(size) {
+  console.warn('THREE.AxisHelper has been renamed to THREE.AxesHelper.');
+  return new AxesHelper(size);
+}
+
+function BoundingBoxHelper(object, color) {
+  console.warn('THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.');
+  return new BoxHelper(object, color);
+}
+
+function EdgesHelper(object, hex) {
+  console.warn('THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.');
+  return new LineSegments(new EdgesGeometry(object.geometry), new LineBasicMaterial({
+    color: hex !== undefined ? hex : 0xffffff
+  }));
+}
+
+GridHelper.prototype.setColors = function () {
+  console.error('THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.');
+};
+
+SkeletonHelper.prototype.update = function () {
+  console.error('THREE.SkeletonHelper: update() no longer needs to be called.');
+};
+
+function WireframeHelper(object, hex) {
+  console.warn('THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.');
+  return new LineSegments(new WireframeGeometry(object.geometry), new LineBasicMaterial({
+    color: hex !== undefined ? hex : 0xffffff
+  }));
+} //
+
+
+Loader.prototype.extractUrlBase = function (url) {
+  console.warn('THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.');
+  return LoaderUtils.extractUrlBase(url);
+};
+
+Loader.Handlers = {
+  add: function ()
+  /* regex, loader */
+  {
+    console.error('THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.');
+  },
+  get: function ()
+  /* file */
+  {
+    console.error('THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.');
+  }
+};
+
+function XHRLoader(manager) {
+  console.warn('THREE.XHRLoader has been renamed to THREE.FileLoader.');
+  return new FileLoader(manager);
+}
+
+function BinaryTextureLoader(manager) {
+  console.warn('THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.');
+  return new DataTextureLoader(manager);
+} //
+
+
+Box2.prototype.center = function (optionalTarget) {
+  console.warn('THREE.Box2: .center() has been renamed to .getCenter().');
+  return this.getCenter(optionalTarget);
+};
+
+Box2.prototype.empty = function () {
+  console.warn('THREE.Box2: .empty() has been renamed to .isEmpty().');
+  return this.isEmpty();
+};
+
+Box2.prototype.isIntersectionBox = function (box) {
+  console.warn('THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().');
+  return this.intersectsBox(box);
+};
+
+Box2.prototype.size = function (optionalTarget) {
+  console.warn('THREE.Box2: .size() has been renamed to .getSize().');
+  return this.getSize(optionalTarget);
+}; //
+
+
+Box3.prototype.center = function (optionalTarget) {
+  console.warn('THREE.Box3: .center() has been renamed to .getCenter().');
+  return this.getCenter(optionalTarget);
+};
+
+Box3.prototype.empty = function () {
+  console.warn('THREE.Box3: .empty() has been renamed to .isEmpty().');
+  return this.isEmpty();
+};
+
+Box3.prototype.isIntersectionBox = function (box) {
+  console.warn('THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().');
+  return this.intersectsBox(box);
+};
+
+Box3.prototype.isIntersectionSphere = function (sphere) {
+  console.warn('THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().');
+  return this.intersectsSphere(sphere);
+};
+
+Box3.prototype.size = function (optionalTarget) {
+  console.warn('THREE.Box3: .size() has been renamed to .getSize().');
+  return this.getSize(optionalTarget);
+}; //
+
+
+Sphere.prototype.empty = function () {
+  console.warn('THREE.Sphere: .empty() has been renamed to .isEmpty().');
+  return this.isEmpty();
+}; //
+
+
+Frustum.prototype.setFromMatrix = function (m) {
+  console.warn('THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix().');
+  return this.setFromProjectionMatrix(m);
+}; //
+
+
+Line3.prototype.center = function (optionalTarget) {
+  console.warn('THREE.Line3: .center() has been renamed to .getCenter().');
+  return this.getCenter(optionalTarget);
+}; //
+
+
+MathUtils.random16 = function () {
+  console.warn('THREE.Math: .random16() has been deprecated. Use Math.random() instead.');
+  return Math.random();
+};
+
+MathUtils.nearestPowerOfTwo = function (value) {
+  console.warn('THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().');
+  return MathUtils.floorPowerOfTwo(value);
+};
+
+MathUtils.nextPowerOfTwo = function (value) {
+  console.warn('THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().');
+  return MathUtils.ceilPowerOfTwo(value);
+}; //
+
+
+Matrix3.prototype.flattenToArrayOffset = function (array, offset) {
+  console.warn('THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.');
+  return this.toArray(array, offset);
+};
+
+Matrix3.prototype.multiplyVector3 = function (vector) {
+  console.warn('THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.');
+  return vector.applyMatrix3(this);
+};
+
+Matrix3.prototype.multiplyVector3Array = function ()
+/* a */
+{
+  console.error('THREE.Matrix3: .multiplyVector3Array() has been removed.');
+};
+
+Matrix3.prototype.applyToBufferAttribute = function (attribute) {
+  console.warn('THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead.');
+  return attribute.applyMatrix3(this);
+};
+
+Matrix3.prototype.applyToVector3Array = function ()
+/* array, offset, length */
+{
+  console.error('THREE.Matrix3: .applyToVector3Array() has been removed.');
+};
+
+Matrix3.prototype.getInverse = function (matrix) {
+  console.warn('THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.');
+  return this.copy(matrix).invert();
+}; //
+
+
+Matrix4.prototype.extractPosition = function (m) {
+  console.warn('THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().');
+  return this.copyPosition(m);
+};
+
+Matrix4.prototype.flattenToArrayOffset = function (array, offset) {
+  console.warn('THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.');
+  return this.toArray(array, offset);
+};
+
+Matrix4.prototype.getPosition = function () {
+  console.warn('THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.');
+  return new Vector3().setFromMatrixColumn(this, 3);
+};
+
+Matrix4.prototype.setRotationFromQuaternion = function (q) {
+  console.warn('THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().');
+  return this.makeRotationFromQuaternion(q);
+};
+
+Matrix4.prototype.multiplyToArray = function () {
+  console.warn('THREE.Matrix4: .multiplyToArray() has been removed.');
+};
+
+Matrix4.prototype.multiplyVector3 = function (vector) {
+  console.warn('THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.');
+  return vector.applyMatrix4(this);
+};
+
+Matrix4.prototype.multiplyVector4 = function (vector) {
+  console.warn('THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.');
+  return vector.applyMatrix4(this);
+};
+
+Matrix4.prototype.multiplyVector3Array = function ()
+/* a */
+{
+  console.error('THREE.Matrix4: .multiplyVector3Array() has been removed.');
+};
+
+Matrix4.prototype.rotateAxis = function (v) {
+  console.warn('THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.');
+  v.transformDirection(this);
+};
+
+Matrix4.prototype.crossVector = function (vector) {
+  console.warn('THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.');
+  return vector.applyMatrix4(this);
+};
+
+Matrix4.prototype.translate = function () {
+  console.error('THREE.Matrix4: .translate() has been removed.');
+};
+
+Matrix4.prototype.rotateX = function () {
+  console.error('THREE.Matrix4: .rotateX() has been removed.');
+};
+
+Matrix4.prototype.rotateY = function () {
+  console.error('THREE.Matrix4: .rotateY() has been removed.');
+};
+
+Matrix4.prototype.rotateZ = function () {
+  console.error('THREE.Matrix4: .rotateZ() has been removed.');
+};
+
+Matrix4.prototype.rotateByAxis = function () {
+  console.error('THREE.Matrix4: .rotateByAxis() has been removed.');
+};
+
+Matrix4.prototype.applyToBufferAttribute = function (attribute) {
+  console.warn('THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead.');
+  return attribute.applyMatrix4(this);
+};
+
+Matrix4.prototype.applyToVector3Array = function ()
+/* array, offset, length */
+{
+  console.error('THREE.Matrix4: .applyToVector3Array() has been removed.');
+};
+
+Matrix4.prototype.makeFrustum = function (left, right, bottom, top, near, far) {
+  console.warn('THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.');
+  return this.makePerspective(left, right, top, bottom, near, far);
+};
+
+Matrix4.prototype.getInverse = function (matrix) {
+  console.warn('THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.');
+  return this.copy(matrix).invert();
+}; //
+
+
+Plane.prototype.isIntersectionLine = function (line) {
+  console.warn('THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().');
+  return this.intersectsLine(line);
+}; //
+
+
+Quaternion.prototype.multiplyVector3 = function (vector) {
+  console.warn('THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.');
+  return vector.applyQuaternion(this);
+};
+
+Quaternion.prototype.inverse = function () {
+  console.warn('THREE.Quaternion: .inverse() has been renamed to invert().');
+  return this.invert();
+}; //
+
+
+Ray.prototype.isIntersectionBox = function (box) {
+  console.warn('THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().');
+  return this.intersectsBox(box);
+};
+
+Ray.prototype.isIntersectionPlane = function (plane) {
+  console.warn('THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().');
+  return this.intersectsPlane(plane);
+};
+
+Ray.prototype.isIntersectionSphere = function (sphere) {
+  console.warn('THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().');
+  return this.intersectsSphere(sphere);
+}; //
+
+
+Triangle.prototype.area = function () {
+  console.warn('THREE.Triangle: .area() has been renamed to .getArea().');
+  return this.getArea();
+};
+
+Triangle.prototype.barycoordFromPoint = function (point, target) {
+  console.warn('THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().');
+  return this.getBarycoord(point, target);
+};
+
+Triangle.prototype.midpoint = function (target) {
+  console.warn('THREE.Triangle: .midpoint() has been renamed to .getMidpoint().');
+  return this.getMidpoint(target);
+};
+
+Triangle.prototypenormal = function (target) {
+  console.warn('THREE.Triangle: .normal() has been renamed to .getNormal().');
+  return this.getNormal(target);
+};
+
+Triangle.prototype.plane = function (target) {
+  console.warn('THREE.Triangle: .plane() has been renamed to .getPlane().');
+  return this.getPlane(target);
+};
+
+Triangle.barycoordFromPoint = function (point, a, b, c, target) {
+  console.warn('THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().');
+  return Triangle.getBarycoord(point, a, b, c, target);
+};
+
+Triangle.normal = function (a, b, c, target) {
+  console.warn('THREE.Triangle: .normal() has been renamed to .getNormal().');
+  return Triangle.getNormal(a, b, c, target);
+}; //
+
+
+Shape.prototype.extractAllPoints = function (divisions) {
+  console.warn('THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.');
+  return this.extractPoints(divisions);
+};
+
+Shape.prototype.extrude = function (options) {
+  console.warn('THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.');
+  return new ExtrudeGeometry(this, options);
+};
+
+Shape.prototype.makeGeometry = function (options) {
+  console.warn('THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.');
+  return new ShapeGeometry(this, options);
+}; //
+
+
+Vector2.prototype.fromAttribute = function (attribute, index, offset) {
+  console.warn('THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().');
+  return this.fromBufferAttribute(attribute, index, offset);
+};
+
+Vector2.prototype.distanceToManhattan = function (v) {
+  console.warn('THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().');
+  return this.manhattanDistanceTo(v);
+};
+
+Vector2.prototype.lengthManhattan = function () {
+  console.warn('THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().');
+  return this.manhattanLength();
+}; //
+
+
+Vector3.prototype.setEulerFromRotationMatrix = function () {
+  console.error('THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.');
+};
+
+Vector3.prototype.setEulerFromQuaternion = function () {
+  console.error('THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.');
+};
+
+Vector3.prototype.getPositionFromMatrix = function (m) {
+  console.warn('THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().');
+  return this.setFromMatrixPosition(m);
+};
+
+Vector3.prototype.getScaleFromMatrix = function (m) {
+  console.warn('THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().');
+  return this.setFromMatrixScale(m);
+};
+
+Vector3.prototype.getColumnFromMatrix = function (index, matrix) {
+  console.warn('THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().');
+  return this.setFromMatrixColumn(matrix, index);
+};
+
+Vector3.prototype.applyProjection = function (m) {
+  console.warn('THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.');
+  return this.applyMatrix4(m);
+};
+
+Vector3.prototype.fromAttribute = function (attribute, index, offset) {
+  console.warn('THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().');
+  return this.fromBufferAttribute(attribute, index, offset);
+};
+
+Vector3.prototype.distanceToManhattan = function (v) {
+  console.warn('THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().');
+  return this.manhattanDistanceTo(v);
+};
+
+Vector3.prototype.lengthManhattan = function () {
+  console.warn('THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().');
+  return this.manhattanLength();
+}; //
+
+
+Vector4.prototype.fromAttribute = function (attribute, index, offset) {
+  console.warn('THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().');
+  return this.fromBufferAttribute(attribute, index, offset);
+};
+
+Vector4.prototype.lengthManhattan = function () {
+  console.warn('THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().');
+  return this.manhattanLength();
+}; //
+
+
+Object3D.prototype.getChildByName = function (name) {
+  console.warn('THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().');
+  return this.getObjectByName(name);
+};
+
+Object3D.prototype.renderDepth = function () {
+  console.warn('THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.');
+};
+
+Object3D.prototype.translate = function (distance, axis) {
+  console.warn('THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.');
+  return this.translateOnAxis(axis, distance);
+};
+
+Object3D.prototype.getWorldRotation = function () {
+  console.error('THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.');
+};
+
+Object3D.prototype.applyMatrix = function (matrix) {
+  console.warn('THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4().');
+  return this.applyMatrix4(matrix);
+};
+
+Object.defineProperties(Object3D.prototype, {
+  eulerOrder: {
+    get: function () {
+      console.warn('THREE.Object3D: .eulerOrder is now .rotation.order.');
+      return this.rotation.order;
+    },
+    set: function (value) {
+      console.warn('THREE.Object3D: .eulerOrder is now .rotation.order.');
+      this.rotation.order = value;
+    }
+  },
+  useQuaternion: {
+    get: function () {
+      console.warn('THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.');
+    },
+    set: function () {
+      console.warn('THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.');
+    }
+  }
+});
+
+Mesh.prototype.setDrawMode = function () {
+  console.error('THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.');
+};
+
+Object.defineProperties(Mesh.prototype, {
+  drawMode: {
+    get: function () {
+      console.error('THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode.');
+      return TrianglesDrawMode;
+    },
+    set: function () {
+      console.error('THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.');
+    }
+  }
+});
+Object.defineProperties(LOD.prototype, {
+  objects: {
+    get: function () {
+      console.warn('THREE.LOD: .objects has been renamed to .levels.');
+      return this.levels;
+    }
+  }
+});
+Object.defineProperty(Skeleton.prototype, 'useVertexTexture', {
+  get: function () {
+    console.warn('THREE.Skeleton: useVertexTexture has been removed.');
+  },
+  set: function () {
+    console.warn('THREE.Skeleton: useVertexTexture has been removed.');
+  }
+});
+
+SkinnedMesh.prototype.initBones = function () {
+  console.error('THREE.SkinnedMesh: initBones() has been removed.');
+};
+
+Object.defineProperty(Curve.prototype, '__arcLengthDivisions', {
+  get: function () {
+    console.warn('THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.');
+    return this.arcLengthDivisions;
+  },
+  set: function (value) {
+    console.warn('THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.');
+    this.arcLengthDivisions = value;
+  }
+}); //
+
+PerspectiveCamera.prototype.setLens = function (focalLength, filmGauge) {
+  console.warn('THREE.PerspectiveCamera.setLens is deprecated. ' + 'Use .setFocalLength and .filmGauge for a photographic setup.');
+  if (filmGauge !== undefined) this.filmGauge = filmGauge;
+  this.setFocalLength(focalLength);
+}; //
+
+
+Object.defineProperties(Light.prototype, {
+  onlyShadow: {
+    set: function () {
+      console.warn('THREE.Light: .onlyShadow has been removed.');
+    }
+  },
+  shadowCameraFov: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowCameraFov is now .shadow.camera.fov.');
+      this.shadow.camera.fov = value;
+    }
+  },
+  shadowCameraLeft: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowCameraLeft is now .shadow.camera.left.');
+      this.shadow.camera.left = value;
+    }
+  },
+  shadowCameraRight: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowCameraRight is now .shadow.camera.right.');
+      this.shadow.camera.right = value;
+    }
+  },
+  shadowCameraTop: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowCameraTop is now .shadow.camera.top.');
+      this.shadow.camera.top = value;
+    }
+  },
+  shadowCameraBottom: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.');
+      this.shadow.camera.bottom = value;
+    }
+  },
+  shadowCameraNear: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowCameraNear is now .shadow.camera.near.');
+      this.shadow.camera.near = value;
+    }
+  },
+  shadowCameraFar: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowCameraFar is now .shadow.camera.far.');
+      this.shadow.camera.far = value;
+    }
+  },
+  shadowCameraVisible: {
+    set: function () {
+      console.warn('THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.');
+    }
+  },
+  shadowBias: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowBias is now .shadow.bias.');
+      this.shadow.bias = value;
+    }
+  },
+  shadowDarkness: {
+    set: function () {
+      console.warn('THREE.Light: .shadowDarkness has been removed.');
+    }
+  },
+  shadowMapWidth: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.');
+      this.shadow.mapSize.width = value;
+    }
+  },
+  shadowMapHeight: {
+    set: function (value) {
+      console.warn('THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.');
+      this.shadow.mapSize.height = value;
+    }
+  }
+}); //
+
+Object.defineProperties(BufferAttribute.prototype, {
+  length: {
+    get: function () {
+      console.warn('THREE.BufferAttribute: .length has been deprecated. Use .count instead.');
+      return this.array.length;
+    }
+  },
+  dynamic: {
+    get: function () {
+      console.warn('THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.');
+      return this.usage === DynamicDrawUsage;
+    },
+    set: function ()
+    /* value */
+    {
+      console.warn('THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.');
+      this.setUsage(DynamicDrawUsage);
+    }
+  }
+});
+
+BufferAttribute.prototype.setDynamic = function (value) {
+  console.warn('THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead.');
+  this.setUsage(value === true ? DynamicDrawUsage : StaticDrawUsage);
+  return this;
+};
+
+BufferAttribute.prototype.copyIndicesArray = function ()
+/* indices */
+{
+  console.error('THREE.BufferAttribute: .copyIndicesArray() has been removed.');
+}, BufferAttribute.prototype.setArray = function ()
+/* array */
+{
+  console.error('THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers');
+}; //
+
+BufferGeometry.prototype.addIndex = function (index) {
+  console.warn('THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().');
+  this.setIndex(index);
+};
+
+BufferGeometry.prototype.addAttribute = function (name, attribute) {
+  console.warn('THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute().');
+
+  if (!(attribute && attribute.isBufferAttribute) && !(attribute && attribute.isInterleavedBufferAttribute)) {
+    console.warn('THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).');
+    return this.setAttribute(name, new BufferAttribute(arguments[1], arguments[2]));
+  }
+
+  if (name === 'index') {
+    console.warn('THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.');
+    this.setIndex(attribute);
+    return this;
+  }
+
+  return this.setAttribute(name, attribute);
+};
+
+BufferGeometry.prototype.addDrawCall = function (start, count, indexOffset) {
+  if (indexOffset !== undefined) {
+    console.warn('THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.');
+  }
+
+  console.warn('THREE.BufferGeometry: .addDrawCall() is now .addGroup().');
+  this.addGroup(start, count);
+};
+
+BufferGeometry.prototype.clearDrawCalls = function () {
+  console.warn('THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().');
+  this.clearGroups();
+};
+
+BufferGeometry.prototype.computeOffsets = function () {
+  console.warn('THREE.BufferGeometry: .computeOffsets() has been removed.');
+};
+
+BufferGeometry.prototype.removeAttribute = function (name) {
+  console.warn('THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute().');
+  return this.deleteAttribute(name);
+};
+
+BufferGeometry.prototype.applyMatrix = function (matrix) {
+  console.warn('THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4().');
+  return this.applyMatrix4(matrix);
+};
+
+Object.defineProperties(BufferGeometry.prototype, {
+  drawcalls: {
+    get: function () {
+      console.error('THREE.BufferGeometry: .drawcalls has been renamed to .groups.');
+      return this.groups;
+    }
+  },
+  offsets: {
+    get: function () {
+      console.warn('THREE.BufferGeometry: .offsets has been renamed to .groups.');
+      return this.groups;
+    }
+  }
+});
+Object.defineProperties(InstancedBufferGeometry.prototype, {
+  maxInstancedCount: {
+    get: function () {
+      console.warn('THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount.');
+      return this.instanceCount;
+    },
+    set: function (value) {
+      console.warn('THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount.');
+      this.instanceCount = value;
+    }
+  }
+});
+Object.defineProperties(Raycaster.prototype, {
+  linePrecision: {
+    get: function () {
+      console.warn('THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead.');
+      return this.params.Line.threshold;
+    },
+    set: function (value) {
+      console.warn('THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead.');
+      this.params.Line.threshold = value;
+    }
+  }
+});
+Object.defineProperties(InterleavedBuffer.prototype, {
+  dynamic: {
+    get: function () {
+      console.warn('THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead.');
+      return this.usage === DynamicDrawUsage;
+    },
+    set: function (value) {
+      console.warn('THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead.');
+      this.setUsage(value);
+    }
+  }
+});
+
+InterleavedBuffer.prototype.setDynamic = function (value) {
+  console.warn('THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead.');
+  this.setUsage(value === true ? DynamicDrawUsage : StaticDrawUsage);
+  return this;
+};
+
+InterleavedBuffer.prototype.setArray = function ()
+/* array */
+{
+  console.error('THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers');
+}; //
+
+
+ExtrudeGeometry.prototype.getArrays = function () {
+  console.error('THREE.ExtrudeGeometry: .getArrays() has been removed.');
+};
+
+ExtrudeGeometry.prototype.addShapeList = function () {
+  console.error('THREE.ExtrudeGeometry: .addShapeList() has been removed.');
+};
+
+ExtrudeGeometry.prototype.addShape = function () {
+  console.error('THREE.ExtrudeGeometry: .addShape() has been removed.');
+}; //
+
+
+Scene.prototype.dispose = function () {
+  console.error('THREE.Scene: .dispose() has been removed.');
+}; //
+
+
+Object.defineProperties(Uniform.prototype, {
+  dynamic: {
+    set: function () {
+      console.warn('THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.');
+    }
+  },
+  onUpdate: {
+    value: function () {
+      console.warn('THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.');
+      return this;
+    }
+  }
+}); //
+
+Object.defineProperties(Material.prototype, {
+  wrapAround: {
+    get: function () {
+      console.warn('THREE.Material: .wrapAround has been removed.');
+    },
+    set: function () {
+      console.warn('THREE.Material: .wrapAround has been removed.');
+    }
+  },
+  overdraw: {
+    get: function () {
+      console.warn('THREE.Material: .overdraw has been removed.');
+    },
+    set: function () {
+      console.warn('THREE.Material: .overdraw has been removed.');
+    }
+  },
+  wrapRGB: {
+    get: function () {
+      console.warn('THREE.Material: .wrapRGB has been removed.');
+      return new Color();
+    }
+  },
+  shading: {
+    get: function () {
+      console.error('THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.');
+    },
+    set: function (value) {
+      console.warn('THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.');
+      this.flatShading = value === FlatShading;
+    }
+  },
+  stencilMask: {
+    get: function () {
+      console.warn('THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.');
+      return this.stencilFuncMask;
+    },
+    set: function (value) {
+      console.warn('THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.');
+      this.stencilFuncMask = value;
+    }
+  }
+});
+Object.defineProperties(MeshPhongMaterial.prototype, {
+  metal: {
+    get: function () {
+      console.warn('THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.');
+      return false;
+    },
+    set: function () {
+      console.warn('THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead');
+    }
+  }
+});
+Object.defineProperties(MeshPhysicalMaterial.prototype, {
+  transparency: {
+    get: function () {
+      console.warn('THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission.');
+      return this.transmission;
+    },
+    set: function (value) {
+      console.warn('THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission.');
+      this.transmission = value;
+    }
+  }
+});
+Object.defineProperties(ShaderMaterial.prototype, {
+  derivatives: {
+    get: function () {
+      console.warn('THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.');
+      return this.extensions.derivatives;
+    },
+    set: function (value) {
+      console.warn('THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.');
+      this.extensions.derivatives = value;
+    }
+  }
+}); //
+
+WebGLRenderer.prototype.clearTarget = function (renderTarget, color, depth, stencil) {
+  console.warn('THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead.');
+  this.setRenderTarget(renderTarget);
+  this.clear(color, depth, stencil);
+};
+
+WebGLRenderer.prototype.animate = function (callback) {
+  console.warn('THREE.WebGLRenderer: .animate() is now .setAnimationLoop().');
+  this.setAnimationLoop(callback);
+};
+
+WebGLRenderer.prototype.getCurrentRenderTarget = function () {
+  console.warn('THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().');
+  return this.getRenderTarget();
+};
+
+WebGLRenderer.prototype.getMaxAnisotropy = function () {
+  console.warn('THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().');
+  return this.capabilities.getMaxAnisotropy();
+};
+
+WebGLRenderer.prototype.getPrecision = function () {
+  console.warn('THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.');
+  return this.capabilities.precision;
+};
+
+WebGLRenderer.prototype.resetGLState = function () {
+  console.warn('THREE.WebGLRenderer: .resetGLState() is now .state.reset().');
+  return this.state.reset();
+};
+
+WebGLRenderer.prototype.supportsFloatTextures = function () {
+  console.warn('THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).');
+  return this.extensions.get('OES_texture_float');
+};
+
+WebGLRenderer.prototype.supportsHalfFloatTextures = function () {
+  console.warn('THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).');
+  return this.extensions.get('OES_texture_half_float');
+};
+
+WebGLRenderer.prototype.supportsStandardDerivatives = function () {
+  console.warn('THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).');
+  return this.extensions.get('OES_standard_derivatives');
+};
+
+WebGLRenderer.prototype.supportsCompressedTextureS3TC = function () {
+  console.warn('THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).');
+  return this.extensions.get('WEBGL_compressed_texture_s3tc');
+};
+
+WebGLRenderer.prototype.supportsCompressedTexturePVRTC = function () {
+  console.warn('THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).');
+  return this.extensions.get('WEBGL_compressed_texture_pvrtc');
+};
+
+WebGLRenderer.prototype.supportsBlendMinMax = function () {
+  console.warn('THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).');
+  return this.extensions.get('EXT_blend_minmax');
+};
+
+WebGLRenderer.prototype.supportsVertexTextures = function () {
+  console.warn('THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.');
+  return this.capabilities.vertexTextures;
+};
+
+WebGLRenderer.prototype.supportsInstancedArrays = function () {
+  console.warn('THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).');
+  return this.extensions.get('ANGLE_instanced_arrays');
+};
+
+WebGLRenderer.prototype.enableScissorTest = function (boolean) {
+  console.warn('THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().');
+  this.setScissorTest(boolean);
+};
+
+WebGLRenderer.prototype.initMaterial = function () {
+  console.warn('THREE.WebGLRenderer: .initMaterial() has been removed.');
+};
+
+WebGLRenderer.prototype.addPrePlugin = function () {
+  console.warn('THREE.WebGLRenderer: .addPrePlugin() has been removed.');
+};
+
+WebGLRenderer.prototype.addPostPlugin = function () {
+  console.warn('THREE.WebGLRenderer: .addPostPlugin() has been removed.');
+};
+
+WebGLRenderer.prototype.updateShadowMap = function () {
+  console.warn('THREE.WebGLRenderer: .updateShadowMap() has been removed.');
+};
+
+WebGLRenderer.prototype.setFaceCulling = function () {
+  console.warn('THREE.WebGLRenderer: .setFaceCulling() has been removed.');
+};
+
+WebGLRenderer.prototype.allocTextureUnit = function () {
+  console.warn('THREE.WebGLRenderer: .allocTextureUnit() has been removed.');
+};
+
+WebGLRenderer.prototype.setTexture = function () {
+  console.warn('THREE.WebGLRenderer: .setTexture() has been removed.');
+};
+
+WebGLRenderer.prototype.setTexture2D = function () {
+  console.warn('THREE.WebGLRenderer: .setTexture2D() has been removed.');
+};
+
+WebGLRenderer.prototype.setTextureCube = function () {
+  console.warn('THREE.WebGLRenderer: .setTextureCube() has been removed.');
+};
+
+WebGLRenderer.prototype.getActiveMipMapLevel = function () {
+  console.warn('THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel().');
+  return this.getActiveMipmapLevel();
+};
+
+Object.defineProperties(WebGLRenderer.prototype, {
+  shadowMapEnabled: {
+    get: function () {
+      return this.shadowMap.enabled;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.');
+      this.shadowMap.enabled = value;
+    }
+  },
+  shadowMapType: {
+    get: function () {
+      return this.shadowMap.type;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.');
+      this.shadowMap.type = value;
+    }
+  },
+  shadowMapCullFace: {
+    get: function () {
+      console.warn('THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.');
+      return undefined;
+    },
+    set: function ()
+    /* value */
+    {
+      console.warn('THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.');
+    }
+  },
+  context: {
+    get: function () {
+      console.warn('THREE.WebGLRenderer: .context has been removed. Use .getContext() instead.');
+      return this.getContext();
+    }
+  },
+  vr: {
+    get: function () {
+      console.warn('THREE.WebGLRenderer: .vr has been renamed to .xr');
+      return this.xr;
+    }
+  },
+  gammaInput: {
+    get: function () {
+      console.warn('THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.');
+      return false;
+    },
+    set: function () {
+      console.warn('THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.');
+    }
+  },
+  gammaOutput: {
+    get: function () {
+      console.warn('THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.');
+      return false;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.');
+      this.outputEncoding = value === true ? sRGBEncoding : LinearEncoding;
+    }
+  },
+  toneMappingWhitePoint: {
+    get: function () {
+      console.warn('THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.');
+      return 1.0;
+    },
+    set: function () {
+      console.warn('THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.');
+    }
+  }
+});
+Object.defineProperties(WebGLShadowMap.prototype, {
+  cullFace: {
+    get: function () {
+      console.warn('THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.');
+      return undefined;
+    },
+    set: function ()
+    /* cullFace */
+    {
+      console.warn('THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.');
+    }
+  },
+  renderReverseSided: {
+    get: function () {
+      console.warn('THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.');
+      return undefined;
+    },
+    set: function () {
+      console.warn('THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.');
+    }
+  },
+  renderSingleSided: {
+    get: function () {
+      console.warn('THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.');
+      return undefined;
+    },
+    set: function () {
+      console.warn('THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.');
+    }
+  }
+});
+
+function WebGLRenderTargetCube(width, height, options) {
+  console.warn('THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options ).');
+  return new WebGLCubeRenderTarget(width, options);
+} //
+
+
+Object.defineProperties(WebGLRenderTarget.prototype, {
+  wrapS: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.');
+      return this.texture.wrapS;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.');
+      this.texture.wrapS = value;
+    }
+  },
+  wrapT: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.');
+      return this.texture.wrapT;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.');
+      this.texture.wrapT = value;
+    }
+  },
+  magFilter: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.');
+      return this.texture.magFilter;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.');
+      this.texture.magFilter = value;
+    }
+  },
+  minFilter: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.');
+      return this.texture.minFilter;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.');
+      this.texture.minFilter = value;
+    }
+  },
+  anisotropy: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.');
+      return this.texture.anisotropy;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.');
+      this.texture.anisotropy = value;
+    }
+  },
+  offset: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .offset is now .texture.offset.');
+      return this.texture.offset;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .offset is now .texture.offset.');
+      this.texture.offset = value;
+    }
+  },
+  repeat: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .repeat is now .texture.repeat.');
+      return this.texture.repeat;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .repeat is now .texture.repeat.');
+      this.texture.repeat = value;
+    }
+  },
+  format: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .format is now .texture.format.');
+      return this.texture.format;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .format is now .texture.format.');
+      this.texture.format = value;
+    }
+  },
+  type: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .type is now .texture.type.');
+      return this.texture.type;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .type is now .texture.type.');
+      this.texture.type = value;
+    }
+  },
+  generateMipmaps: {
+    get: function () {
+      console.warn('THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.');
+      return this.texture.generateMipmaps;
+    },
+    set: function (value) {
+      console.warn('THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.');
+      this.texture.generateMipmaps = value;
+    }
+  }
+}); //
+
+Object.defineProperties(Audio.prototype, {
+  load: {
+    value: function (file) {
+      console.warn('THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.');
+      const scope = this;
+      const audioLoader = new AudioLoader();
+      audioLoader.load(file, function (buffer) {
+        scope.setBuffer(buffer);
+      });
+      return this;
+    }
+  },
+  startTime: {
+    set: function () {
+      console.warn('THREE.Audio: .startTime is now .play( delay ).');
+    }
+  }
+});
+
+AudioAnalyser.prototype.getData = function () {
+  console.warn('THREE.AudioAnalyser: .getData() is now .getFrequencyData().');
+  return this.getFrequencyData();
+}; //
+
+
+CubeCamera.prototype.updateCubeMap = function (renderer, scene) {
+  console.warn('THREE.CubeCamera: .updateCubeMap() is now .update().');
+  return this.update(renderer, scene);
+};
+
+CubeCamera.prototype.clear = function (renderer, color, depth, stencil) {
+  console.warn('THREE.CubeCamera: .clear() is now .renderTarget.clear().');
+  return this.renderTarget.clear(renderer, color, depth, stencil);
+};
+
+ImageUtils.crossOrigin = undefined;
+
+ImageUtils.loadTexture = function (url, mapping, onLoad, onError) {
+  console.warn('THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.');
+  const loader = new TextureLoader();
+  loader.setCrossOrigin(this.crossOrigin);
+  const texture = loader.load(url, onLoad, undefined, onError);
+  if (mapping) texture.mapping = mapping;
+  return texture;
+};
+
+ImageUtils.loadTextureCube = function (urls, mapping, onLoad, onError) {
+  console.warn('THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.');
+  const loader = new CubeTextureLoader();
+  loader.setCrossOrigin(this.crossOrigin);
+  const texture = loader.load(urls, onLoad, undefined, onError);
+  if (mapping) texture.mapping = mapping;
+  return texture;
+};
+
+ImageUtils.loadCompressedTexture = function () {
+  console.error('THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.');
+};
+
+ImageUtils.loadCompressedTextureCube = function () {
+  console.error('THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.');
+}; //
+
+
+function CanvasRenderer() {
+  console.error('THREE.CanvasRenderer has been removed');
+} //
+
+
+function JSONLoader() {
+  console.error('THREE.JSONLoader has been removed.');
+} //
+
+
+const SceneUtils = {
+  createMultiMaterialObject: function ()
+  /* geometry, materials */
+  {
+    console.error('THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js');
+  },
+  detach: function ()
+  /* child, parent, scene */
+  {
+    console.error('THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js');
+  },
+  attach: function ()
+  /* child, scene, parent */
+  {
+    console.error('THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js');
+  }
+}; //
+
+exports.SceneUtils = SceneUtils;
+
+function LensFlare() {
+  console.error('THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js');
+}
+
+if (typeof __THREE_DEVTOOLS__ !== 'undefined') {
+  /* eslint-disable no-undef */
+  __THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('register', {
+    detail: {
+      revision: REVISION
+    }
+  }));
+  /* eslint-enable no-undef */
+
+}
+
+if (typeof window !== 'undefined') {
+  if (window.__THREE__) {
+    console.warn('WARNING: Multiple instances of Three.js being imported.');
+  } else {
+    window.__THREE__ = REVISION;
+  }
+}
+},{}],"../node_modules/three/examples/jsm/controls/OrbitControls.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.MapControls = exports.OrbitControls = void 0;
+
+var _threeModule = require("../../../build/three.module.js");
+
+// This set of controls performs orbiting, dollying (zooming), and panning.
+// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
+//
+//    Orbit - left mouse / touch: one-finger move
+//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
+//    Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move
+var OrbitControls = function (object, domElement) {
+  if (domElement === undefined) console.warn('THREE.OrbitControls: The second parameter "domElement" is now mandatory.');
+  if (domElement === document) console.error('THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.');
+  this.object = object;
+  this.domElement = domElement; // Set to false to disable this control
+
+  this.enabled = true; // "target" sets the location of focus, where the object orbits around
+
+  this.target = new _threeModule.Vector3(); // How far you can dolly in and out ( PerspectiveCamera only )
+
+  this.minDistance = 0;
+  this.maxDistance = Infinity; // How far you can zoom in and out ( OrthographicCamera only )
+
+  this.minZoom = 0;
+  this.maxZoom = Infinity; // How far you can orbit vertically, upper and lower limits.
+  // Range is 0 to Math.PI radians.
+
+  this.minPolarAngle = 0; // radians
+
+  this.maxPolarAngle = Math.PI; // radians
+  // How far you can orbit horizontally, upper and lower limits.
+  // If set, the interval [ min, max ] must be a sub-interval of [ - 2 PI, 2 PI ], with ( max - min < 2 PI )
+
+  this.minAzimuthAngle = -Infinity; // radians
+
+  this.maxAzimuthAngle = Infinity; // radians
+  // Set to true to enable damping (inertia)
+  // If damping is enabled, you must call controls.update() in your animation loop
+
+  this.enableDamping = false;
+  this.dampingFactor = 0.05; // This option actually enables dollying in and out; left as "zoom" for backwards compatibility.
+  // Set to false to disable zooming
+
+  this.enableZoom = true;
+  this.zoomSpeed = 1.0; // Set to false to disable rotating
+
+  this.enableRotate = true;
+  this.rotateSpeed = 1.0; // Set to false to disable panning
+
+  this.enablePan = true;
+  this.panSpeed = 1.0;
+  this.screenSpacePanning = true; // if false, pan orthogonal to world-space direction camera.up
+
+  this.keyPanSpeed = 7.0; // pixels moved per arrow key push
+  // Set to true to automatically rotate around the target
+  // If auto-rotate is enabled, you must call controls.update() in your animation loop
+
+  this.autoRotate = false;
+  this.autoRotateSpeed = 2.0; // 30 seconds per orbit when fps is 60
+  // The four arrow keys
+
+  this.keys = {
+    LEFT: 37,
+    UP: 38,
+    RIGHT: 39,
+    BOTTOM: 40
+  }; // Mouse buttons
+
+  this.mouseButtons = {
+    LEFT: _threeModule.MOUSE.ROTATE,
+    MIDDLE: _threeModule.MOUSE.DOLLY,
+    RIGHT: _threeModule.MOUSE.PAN
+  }; // Touch fingers
+
+  this.touches = {
+    ONE: _threeModule.TOUCH.ROTATE,
+    TWO: _threeModule.TOUCH.DOLLY_PAN
+  }; // for reset
+
+  this.target0 = this.target.clone();
+  this.position0 = this.object.position.clone();
+  this.zoom0 = this.object.zoom; // the target DOM element for key events
+
+  this._domElementKeyEvents = null; //
+  // public methods
+  //
+
+  this.getPolarAngle = function () {
+    return spherical.phi;
+  };
+
+  this.getAzimuthalAngle = function () {
+    return spherical.theta;
+  };
+
+  this.listenToKeyEvents = function (domElement) {
+    domElement.addEventListener('keydown', onKeyDown);
+    this._domElementKeyEvents = domElement;
+  };
+
+  this.saveState = function () {
+    scope.target0.copy(scope.target);
+    scope.position0.copy(scope.object.position);
+    scope.zoom0 = scope.object.zoom;
+  };
+
+  this.reset = function () {
+    scope.target.copy(scope.target0);
+    scope.object.position.copy(scope.position0);
+    scope.object.zoom = scope.zoom0;
+    scope.object.updateProjectionMatrix();
+    scope.dispatchEvent(changeEvent);
+    scope.update();
+    state = STATE.NONE;
+  }; // this method is exposed, but perhaps it would be better if we can make it private...
+
+
+  this.update = function () {
+    var offset = new _threeModule.Vector3(); // so camera.up is the orbit axis
+
+    var quat = new _threeModule.Quaternion().setFromUnitVectors(object.up, new _threeModule.Vector3(0, 1, 0));
+    var quatInverse = quat.clone().invert();
+    var lastPosition = new _threeModule.Vector3();
+    var lastQuaternion = new _threeModule.Quaternion();
+    var twoPI = 2 * Math.PI;
+    return function update() {
+      var position = scope.object.position;
+      offset.copy(position).sub(scope.target); // rotate offset to "y-axis-is-up" space
+
+      offset.applyQuaternion(quat); // angle from z-axis around y-axis
+
+      spherical.setFromVector3(offset);
+
+      if (scope.autoRotate && state === STATE.NONE) {
+        rotateLeft(getAutoRotationAngle());
+      }
+
+      if (scope.enableDamping) {
+        spherical.theta += sphericalDelta.theta * scope.dampingFactor;
+        spherical.phi += sphericalDelta.phi * scope.dampingFactor;
+      } else {
+        spherical.theta += sphericalDelta.theta;
+        spherical.phi += sphericalDelta.phi;
+      } // restrict theta to be between desired limits
+
+
+      var min = scope.minAzimuthAngle;
+      var max = scope.maxAzimuthAngle;
+
+      if (isFinite(min) && isFinite(max)) {
+        if (min < -Math.PI) min += twoPI;else if (min > Math.PI) min -= twoPI;
+        if (max < -Math.PI) max += twoPI;else if (max > Math.PI) max -= twoPI;
+
+        if (min <= max) {
+          spherical.theta = Math.max(min, Math.min(max, spherical.theta));
+        } else {
+          spherical.theta = spherical.theta > (min + max) / 2 ? Math.max(min, spherical.theta) : Math.min(max, spherical.theta);
+        }
+      } // restrict phi to be between desired limits
+
+
+      spherical.phi = Math.max(scope.minPolarAngle, Math.min(scope.maxPolarAngle, spherical.phi));
+      spherical.makeSafe();
+      spherical.radius *= scale; // restrict radius to be between desired limits
+
+      spherical.radius = Math.max(scope.minDistance, Math.min(scope.maxDistance, spherical.radius)); // move target to panned location
+
+      if (scope.enableDamping === true) {
+        scope.target.addScaledVector(panOffset, scope.dampingFactor);
+      } else {
+        scope.target.add(panOffset);
+      }
+
+      offset.setFromSpherical(spherical); // rotate offset back to "camera-up-vector-is-up" space
+
+      offset.applyQuaternion(quatInverse);
+      position.copy(scope.target).add(offset);
+      scope.object.lookAt(scope.target);
+
+      if (scope.enableDamping === true) {
+        sphericalDelta.theta *= 1 - scope.dampingFactor;
+        sphericalDelta.phi *= 1 - scope.dampingFactor;
+        panOffset.multiplyScalar(1 - scope.dampingFactor);
+      } else {
+        sphericalDelta.set(0, 0, 0);
+        panOffset.set(0, 0, 0);
+      }
+
+      scale = 1; // update condition is:
+      // min(camera displacement, camera rotation in radians)^2 > EPS
+      // using small-angle approximation cos(x/2) = 1 - x^2 / 8
+
+      if (zoomChanged || lastPosition.distanceToSquared(scope.object.position) > EPS || 8 * (1 - lastQuaternion.dot(scope.object.quaternion)) > EPS) {
+        scope.dispatchEvent(changeEvent);
+        lastPosition.copy(scope.object.position);
+        lastQuaternion.copy(scope.object.quaternion);
+        zoomChanged = false;
+        return true;
+      }
+
+      return false;
+    };
+  }();
+
+  this.dispose = function () {
+    scope.domElement.removeEventListener('contextmenu', onContextMenu);
+    scope.domElement.removeEventListener('pointerdown', onPointerDown);
+    scope.domElement.removeEventListener('wheel', onMouseWheel);
+    scope.domElement.removeEventListener('touchstart', onTouchStart);
+    scope.domElement.removeEventListener('touchend', onTouchEnd);
+    scope.domElement.removeEventListener('touchmove', onTouchMove);
+    scope.domElement.ownerDocument.removeEventListener('pointermove', onPointerMove);
+    scope.domElement.ownerDocument.removeEventListener('pointerup', onPointerUp);
+
+    if (scope._domElementKeyEvents !== null) {
+      scope._domElementKeyEvents.removeEventListener('keydown', onKeyDown);
+    } //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?
+
+  }; //
+  // internals
+  //
+
+
+  var scope = this;
+  var changeEvent = {
+    type: 'change'
+  };
+  var startEvent = {
+    type: 'start'
+  };
+  var endEvent = {
+    type: 'end'
+  };
+  var STATE = {
+    NONE: -1,
+    ROTATE: 0,
+    DOLLY: 1,
+    PAN: 2,
+    TOUCH_ROTATE: 3,
+    TOUCH_PAN: 4,
+    TOUCH_DOLLY_PAN: 5,
+    TOUCH_DOLLY_ROTATE: 6
+  };
+  var state = STATE.NONE;
+  var EPS = 0.000001; // current position in spherical coordinates
+
+  var spherical = new _threeModule.Spherical();
+  var sphericalDelta = new _threeModule.Spherical();
+  var scale = 1;
+  var panOffset = new _threeModule.Vector3();
+  var zoomChanged = false;
+  var rotateStart = new _threeModule.Vector2();
+  var rotateEnd = new _threeModule.Vector2();
+  var rotateDelta = new _threeModule.Vector2();
+  var panStart = new _threeModule.Vector2();
+  var panEnd = new _threeModule.Vector2();
+  var panDelta = new _threeModule.Vector2();
+  var dollyStart = new _threeModule.Vector2();
+  var dollyEnd = new _threeModule.Vector2();
+  var dollyDelta = new _threeModule.Vector2();
+
+  function getAutoRotationAngle() {
+    return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;
+  }
+
+  function getZoomScale() {
+    return Math.pow(0.95, scope.zoomSpeed);
+  }
+
+  function rotateLeft(angle) {
+    sphericalDelta.theta -= angle;
+  }
+
+  function rotateUp(angle) {
+    sphericalDelta.phi -= angle;
+  }
+
+  var panLeft = function () {
+    var v = new _threeModule.Vector3();
+    return function panLeft(distance, objectMatrix) {
+      v.setFromMatrixColumn(objectMatrix, 0); // get X column of objectMatrix
+
+      v.multiplyScalar(-distance);
+      panOffset.add(v);
+    };
+  }();
+
+  var panUp = function () {
+    var v = new _threeModule.Vector3();
+    return function panUp(distance, objectMatrix) {
+      if (scope.screenSpacePanning === true) {
+        v.setFromMatrixColumn(objectMatrix, 1);
+      } else {
+        v.setFromMatrixColumn(objectMatrix, 0);
+        v.crossVectors(scope.object.up, v);
+      }
+
+      v.multiplyScalar(distance);
+      panOffset.add(v);
+    };
+  }(); // deltaX and deltaY are in pixels; right and down are positive
+
+
+  var pan = function () {
+    var offset = new _threeModule.Vector3();
+    return function pan(deltaX, deltaY) {
+      var element = scope.domElement;
+
+      if (scope.object.isPerspectiveCamera) {
+        // perspective
+        var position = scope.object.position;
+        offset.copy(position).sub(scope.target);
+        var targetDistance = offset.length(); // half of the fov is center to top of screen
+
+        targetDistance *= Math.tan(scope.object.fov / 2 * Math.PI / 180.0); // we use only clientHeight here so aspect ratio does not distort speed
+
+        panLeft(2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix);
+        panUp(2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix);
+      } else if (scope.object.isOrthographicCamera) {
+        // orthographic
+        panLeft(deltaX * (scope.object.right - scope.object.left) / scope.object.zoom / element.clientWidth, scope.object.matrix);
+        panUp(deltaY * (scope.object.top - scope.object.bottom) / scope.object.zoom / element.clientHeight, scope.object.matrix);
+      } else {
+        // camera neither orthographic nor perspective
+        console.warn('WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.');
+        scope.enablePan = false;
+      }
+    };
+  }();
+
+  function dollyOut(dollyScale) {
+    if (scope.object.isPerspectiveCamera) {
+      scale /= dollyScale;
+    } else if (scope.object.isOrthographicCamera) {
+      scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom * dollyScale));
+      scope.object.updateProjectionMatrix();
+      zoomChanged = true;
+    } else {
+      console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
+      scope.enableZoom = false;
+    }
+  }
+
+  function dollyIn(dollyScale) {
+    if (scope.object.isPerspectiveCamera) {
+      scale *= dollyScale;
+    } else if (scope.object.isOrthographicCamera) {
+      scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom / dollyScale));
+      scope.object.updateProjectionMatrix();
+      zoomChanged = true;
+    } else {
+      console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
+      scope.enableZoom = false;
+    }
+  } //
+  // event callbacks - update the object state
+  //
+
+
+  function handleMouseDownRotate(event) {
+    rotateStart.set(event.clientX, event.clientY);
+  }
+
+  function handleMouseDownDolly(event) {
+    dollyStart.set(event.clientX, event.clientY);
+  }
+
+  function handleMouseDownPan(event) {
+    panStart.set(event.clientX, event.clientY);
+  }
+
+  function handleMouseMoveRotate(event) {
+    rotateEnd.set(event.clientX, event.clientY);
+    rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);
+    var element = scope.domElement;
+    rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height
+
+    rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);
+    rotateStart.copy(rotateEnd);
+    scope.update();
+  }
+
+  function handleMouseMoveDolly(event) {
+    dollyEnd.set(event.clientX, event.clientY);
+    dollyDelta.subVectors(dollyEnd, dollyStart);
+
+    if (dollyDelta.y > 0) {
+      dollyOut(getZoomScale());
+    } else if (dollyDelta.y < 0) {
+      dollyIn(getZoomScale());
+    }
+
+    dollyStart.copy(dollyEnd);
+    scope.update();
+  }
+
+  function handleMouseMovePan(event) {
+    panEnd.set(event.clientX, event.clientY);
+    panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);
+    pan(panDelta.x, panDelta.y);
+    panStart.copy(panEnd);
+    scope.update();
+  }
+
+  function handleMouseUp()
+  /*event*/
+  {// no-op
+  }
+
+  function handleMouseWheel(event) {
+    if (event.deltaY < 0) {
+      dollyIn(getZoomScale());
+    } else if (event.deltaY > 0) {
+      dollyOut(getZoomScale());
+    }
+
+    scope.update();
+  }
+
+  function handleKeyDown(event) {
+    var needsUpdate = false;
+
+    switch (event.keyCode) {
+      case scope.keys.UP:
+        pan(0, scope.keyPanSpeed);
+        needsUpdate = true;
+        break;
+
+      case scope.keys.BOTTOM:
+        pan(0, -scope.keyPanSpeed);
+        needsUpdate = true;
+        break;
+
+      case scope.keys.LEFT:
+        pan(scope.keyPanSpeed, 0);
+        needsUpdate = true;
+        break;
+
+      case scope.keys.RIGHT:
+        pan(-scope.keyPanSpeed, 0);
+        needsUpdate = true;
+        break;
+    }
+
+    if (needsUpdate) {
+      // prevent the browser from scrolling on cursor keys
+      event.preventDefault();
+      scope.update();
+    }
+  }
+
+  function handleTouchStartRotate(event) {
+    if (event.touches.length == 1) {
+      rotateStart.set(event.touches[0].pageX, event.touches[0].pageY);
+    } else {
+      var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
+      var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
+      rotateStart.set(x, y);
+    }
+  }
+
+  function handleTouchStartPan(event) {
+    if (event.touches.length == 1) {
+      panStart.set(event.touches[0].pageX, event.touches[0].pageY);
+    } else {
+      var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
+      var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
+      panStart.set(x, y);
+    }
+  }
+
+  function handleTouchStartDolly(event) {
+    var dx = event.touches[0].pageX - event.touches[1].pageX;
+    var dy = event.touches[0].pageY - event.touches[1].pageY;
+    var distance = Math.sqrt(dx * dx + dy * dy);
+    dollyStart.set(0, distance);
+  }
+
+  function handleTouchStartDollyPan(event) {
+    if (scope.enableZoom) handleTouchStartDolly(event);
+    if (scope.enablePan) handleTouchStartPan(event);
+  }
+
+  function handleTouchStartDollyRotate(event) {
+    if (scope.enableZoom) handleTouchStartDolly(event);
+    if (scope.enableRotate) handleTouchStartRotate(event);
+  }
+
+  function handleTouchMoveRotate(event) {
+    if (event.touches.length == 1) {
+      rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);
+    } else {
+      var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
+      var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
+      rotateEnd.set(x, y);
+    }
+
+    rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);
+    var element = scope.domElement;
+    rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height
+
+    rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);
+    rotateStart.copy(rotateEnd);
+  }
+
+  function handleTouchMovePan(event) {
+    if (event.touches.length == 1) {
+      panEnd.set(event.touches[0].pageX, event.touches[0].pageY);
+    } else {
+      var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
+      var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
+      panEnd.set(x, y);
+    }
+
+    panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);
+    pan(panDelta.x, panDelta.y);
+    panStart.copy(panEnd);
+  }
+
+  function handleTouchMoveDolly(event) {
+    var dx = event.touches[0].pageX - event.touches[1].pageX;
+    var dy = event.touches[0].pageY - event.touches[1].pageY;
+    var distance = Math.sqrt(dx * dx + dy * dy);
+    dollyEnd.set(0, distance);
+    dollyDelta.set(0, Math.pow(dollyEnd.y / dollyStart.y, scope.zoomSpeed));
+    dollyOut(dollyDelta.y);
+    dollyStart.copy(dollyEnd);
+  }
+
+  function handleTouchMoveDollyPan(event) {
+    if (scope.enableZoom) handleTouchMoveDolly(event);
+    if (scope.enablePan) handleTouchMovePan(event);
+  }
+
+  function handleTouchMoveDollyRotate(event) {
+    if (scope.enableZoom) handleTouchMoveDolly(event);
+    if (scope.enableRotate) handleTouchMoveRotate(event);
+  }
+
+  function handleTouchEnd()
+  /*event*/
+  {} // no-op
+  //
+  // event handlers - FSM: listen for events and reset state
+  //
+
+
+  function onPointerDown(event) {
+    if (scope.enabled === false) return;
+
+    switch (event.pointerType) {
+      case 'mouse':
+      case 'pen':
+        onMouseDown(event);
+        break;
+      // TODO touch
+    }
+  }
+
+  function onPointerMove(event) {
+    if (scope.enabled === false) return;
+
+    switch (event.pointerType) {
+      case 'mouse':
+      case 'pen':
+        onMouseMove(event);
+        break;
+      // TODO touch
+    }
+  }
+
+  function onPointerUp(event) {
+    switch (event.pointerType) {
+      case 'mouse':
+      case 'pen':
+        onMouseUp(event);
+        break;
+      // TODO touch
+    }
+  }
+
+  function onMouseDown(event) {
+    // Prevent the browser from scrolling.
+    event.preventDefault(); // Manually set the focus since calling preventDefault above
+    // prevents the browser from setting it automatically.
+
+    scope.domElement.focus ? scope.domElement.focus() : window.focus();
+    var mouseAction;
+
+    switch (event.button) {
+      case 0:
+        mouseAction = scope.mouseButtons.LEFT;
+        break;
+
+      case 1:
+        mouseAction = scope.mouseButtons.MIDDLE;
+        break;
+
+      case 2:
+        mouseAction = scope.mouseButtons.RIGHT;
+        break;
+
+      default:
+        mouseAction = -1;
+    }
+
+    switch (mouseAction) {
+      case _threeModule.MOUSE.DOLLY:
+        if (scope.enableZoom === false) return;
+        handleMouseDownDolly(event);
+        state = STATE.DOLLY;
+        break;
+
+      case _threeModule.MOUSE.ROTATE:
+        if (event.ctrlKey || event.metaKey || event.shiftKey) {
+          if (scope.enablePan === false) return;
+          handleMouseDownPan(event);
+          state = STATE.PAN;
+        } else {
+          if (scope.enableRotate === false) return;
+          handleMouseDownRotate(event);
+          state = STATE.ROTATE;
+        }
+
+        break;
+
+      case _threeModule.MOUSE.PAN:
+        if (event.ctrlKey || event.metaKey || event.shiftKey) {
+          if (scope.enableRotate === false) return;
+          handleMouseDownRotate(event);
+          state = STATE.ROTATE;
+        } else {
+          if (scope.enablePan === false) return;
+          handleMouseDownPan(event);
+          state = STATE.PAN;
+        }
+
+        break;
+
+      default:
+        state = STATE.NONE;
+    }
+
+    if (state !== STATE.NONE) {
+      scope.domElement.ownerDocument.addEventListener('pointermove', onPointerMove);
+      scope.domElement.ownerDocument.addEventListener('pointerup', onPointerUp);
+      scope.dispatchEvent(startEvent);
+    }
+  }
+
+  function onMouseMove(event) {
+    if (scope.enabled === false) return;
+    event.preventDefault();
+
+    switch (state) {
+      case STATE.ROTATE:
+        if (scope.enableRotate === false) return;
+        handleMouseMoveRotate(event);
+        break;
+
+      case STATE.DOLLY:
+        if (scope.enableZoom === false) return;
+        handleMouseMoveDolly(event);
+        break;
+
+      case STATE.PAN:
+        if (scope.enablePan === false) return;
+        handleMouseMovePan(event);
+        break;
+    }
+  }
+
+  function onMouseUp(event) {
+    scope.domElement.ownerDocument.removeEventListener('pointermove', onPointerMove);
+    scope.domElement.ownerDocument.removeEventListener('pointerup', onPointerUp);
+    if (scope.enabled === false) return;
+    handleMouseUp(event);
+    scope.dispatchEvent(endEvent);
+    state = STATE.NONE;
+  }
+
+  function onMouseWheel(event) {
+    if (scope.enabled === false || scope.enableZoom === false || state !== STATE.NONE && state !== STATE.ROTATE) return;
+    event.preventDefault();
+    event.stopPropagation();
+    scope.dispatchEvent(startEvent);
+    handleMouseWheel(event);
+    scope.dispatchEvent(endEvent);
+  }
+
+  function onKeyDown(event) {
+    if (scope.enabled === false || scope.enablePan === false) return;
+    handleKeyDown(event);
+  }
+
+  function onTouchStart(event) {
+    if (scope.enabled === false) return;
+    event.preventDefault(); // prevent scrolling
+
+    switch (event.touches.length) {
+      case 1:
+        switch (scope.touches.ONE) {
+          case _threeModule.TOUCH.ROTATE:
+            if (scope.enableRotate === false) return;
+            handleTouchStartRotate(event);
+            state = STATE.TOUCH_ROTATE;
+            break;
+
+          case _threeModule.TOUCH.PAN:
+            if (scope.enablePan === false) return;
+            handleTouchStartPan(event);
+            state = STATE.TOUCH_PAN;
+            break;
+
+          default:
+            state = STATE.NONE;
+        }
+
+        break;
+
+      case 2:
+        switch (scope.touches.TWO) {
+          case _threeModule.TOUCH.DOLLY_PAN:
+            if (scope.enableZoom === false && scope.enablePan === false) return;
+            handleTouchStartDollyPan(event);
+            state = STATE.TOUCH_DOLLY_PAN;
+            break;
+
+          case _threeModule.TOUCH.DOLLY_ROTATE:
+            if (scope.enableZoom === false && scope.enableRotate === false) return;
+            handleTouchStartDollyRotate(event);
+            state = STATE.TOUCH_DOLLY_ROTATE;
+            break;
+
+          default:
+            state = STATE.NONE;
+        }
+
+        break;
+
+      default:
+        state = STATE.NONE;
+    }
+
+    if (state !== STATE.NONE) {
+      scope.dispatchEvent(startEvent);
+    }
+  }
+
+  function onTouchMove(event) {
+    if (scope.enabled === false) return;
+    event.preventDefault(); // prevent scrolling
+
+    event.stopPropagation();
+
+    switch (state) {
+      case STATE.TOUCH_ROTATE:
+        if (scope.enableRotate === false) return;
+        handleTouchMoveRotate(event);
+        scope.update();
+        break;
+
+      case STATE.TOUCH_PAN:
+        if (scope.enablePan === false) return;
+        handleTouchMovePan(event);
+        scope.update();
+        break;
+
+      case STATE.TOUCH_DOLLY_PAN:
+        if (scope.enableZoom === false && scope.enablePan === false) return;
+        handleTouchMoveDollyPan(event);
+        scope.update();
+        break;
+
+      case STATE.TOUCH_DOLLY_ROTATE:
+        if (scope.enableZoom === false && scope.enableRotate === false) return;
+        handleTouchMoveDollyRotate(event);
+        scope.update();
+        break;
+
+      default:
+        state = STATE.NONE;
+    }
+  }
+
+  function onTouchEnd(event) {
+    if (scope.enabled === false) return;
+    handleTouchEnd(event);
+    scope.dispatchEvent(endEvent);
+    state = STATE.NONE;
+  }
+
+  function onContextMenu(event) {
+    if (scope.enabled === false) return;
+    event.preventDefault();
+  } //
+
+
+  scope.domElement.addEventListener('contextmenu', onContextMenu);
+  scope.domElement.addEventListener('pointerdown', onPointerDown);
+  scope.domElement.addEventListener('wheel', onMouseWheel);
+  scope.domElement.addEventListener('touchstart', onTouchStart);
+  scope.domElement.addEventListener('touchend', onTouchEnd);
+  scope.domElement.addEventListener('touchmove', onTouchMove); // force an update at start
+
+  this.update();
+};
+
+exports.OrbitControls = OrbitControls;
+OrbitControls.prototype = Object.create(_threeModule.EventDispatcher.prototype);
+OrbitControls.prototype.constructor = OrbitControls; // This set of controls performs orbiting, dollying (zooming), and panning.
+// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
+// This is very similar to OrbitControls, another set of touch behavior
+//
+//    Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate
+//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
+//    Pan - left mouse, or arrow keys / touch: one-finger move
+
+var MapControls = function (object, domElement) {
+  OrbitControls.call(this, object, domElement);
+  this.screenSpacePanning = false; // pan orthogonal to world-space direction camera.up
+
+  this.mouseButtons.LEFT = _threeModule.MOUSE.PAN;
+  this.mouseButtons.RIGHT = _threeModule.MOUSE.ROTATE;
+  this.touches.ONE = _threeModule.TOUCH.PAN;
+  this.touches.TWO = _threeModule.TOUCH.DOLLY_ROTATE;
+};
+
+exports.MapControls = MapControls;
+MapControls.prototype = Object.create(_threeModule.EventDispatcher.prototype);
+MapControls.prototype.constructor = MapControls;
+},{"../../../build/three.module.js":"../node_modules/three/build/three.module.js"}],"../node_modules/three/examples/jsm/utils/BufferGeometryUtils.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.BufferGeometryUtils = void 0;
+
+var _threeModule = require("../../../build/three.module.js");
+
+var BufferGeometryUtils = {
+  computeTangents: function (geometry) {
+    geometry.computeTangents();
+    console.warn('THREE.BufferGeometryUtils: .computeTangents() has been removed. Use BufferGeometry.computeTangents() instead.');
+  },
+
+  /**
+   * @param  {Array<BufferGeometry>} geometries
+   * @param  {Boolean} useGroups
+   * @return {BufferGeometry}
+   */
+  mergeBufferGeometries: function (geometries, useGroups) {
+    var isIndexed = geometries[0].index !== null;
+    var attributesUsed = new Set(Object.keys(geometries[0].attributes));
+    var morphAttributesUsed = new Set(Object.keys(geometries[0].morphAttributes));
+    var attributes = {};
+    var morphAttributes = {};
+    var morphTargetsRelative = geometries[0].morphTargetsRelative;
+    var mergedGeometry = new _threeModule.BufferGeometry();
+    var offset = 0;
+
+    for (var i = 0; i < geometries.length; ++i) {
+      var geometry = geometries[i];
+      var attributesCount = 0; // ensure that all geometries are indexed, or none
+
+      if (isIndexed !== (geometry.index !== null)) {
+        console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. All geometries must have compatible attributes; make sure index attribute exists among all geometries, or in none of them.');
+        return null;
+      } // gather attributes, exit early if they're different
+
+
+      for (var name in geometry.attributes) {
+        if (!attributesUsed.has(name)) {
+          console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. All geometries must have compatible attributes; make sure "' + name + '" attribute exists among all geometries, or in none of them.');
+          return null;
+        }
+
+        if (attributes[name] === undefined) attributes[name] = [];
+        attributes[name].push(geometry.attributes[name]);
+        attributesCount++;
+      } // ensure geometries have the same number of attributes
+
+
+      if (attributesCount !== attributesUsed.size) {
+        console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. Make sure all geometries have the same number of attributes.');
+        return null;
+      } // gather morph attributes, exit early if they're different
+
+
+      if (morphTargetsRelative !== geometry.morphTargetsRelative) {
+        console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. .morphTargetsRelative must be consistent throughout all geometries.');
+        return null;
+      }
+
+      for (var name in geometry.morphAttributes) {
+        if (!morphAttributesUsed.has(name)) {
+          console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '.  .morphAttributes must be consistent throughout all geometries.');
+          return null;
+        }
+
+        if (morphAttributes[name] === undefined) morphAttributes[name] = [];
+        morphAttributes[name].push(geometry.morphAttributes[name]);
+      } // gather .userData
+
+
+      mergedGeometry.userData.mergedUserData = mergedGeometry.userData.mergedUserData || [];
+      mergedGeometry.userData.mergedUserData.push(geometry.userData);
+
+      if (useGroups) {
+        var count;
+
+        if (isIndexed) {
+          count = geometry.index.count;
+        } else if (geometry.attributes.position !== undefined) {
+          count = geometry.attributes.position.count;
+        } else {
+          console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. The geometry must have either an index or a position attribute');
+          return null;
+        }
+
+        mergedGeometry.addGroup(offset, count, i);
+        offset += count;
+      }
+    } // merge indices
+
+
+    if (isIndexed) {
+      var indexOffset = 0;
+      var mergedIndex = [];
+
+      for (var i = 0; i < geometries.length; ++i) {
+        var index = geometries[i].index;
+
+        for (var j = 0; j < index.count; ++j) {
+          mergedIndex.push(index.getX(j) + indexOffset);
+        }
+
+        indexOffset += geometries[i].attributes.position.count;
+      }
+
+      mergedGeometry.setIndex(mergedIndex);
+    } // merge attributes
+
+
+    for (var name in attributes) {
+      var mergedAttribute = this.mergeBufferAttributes(attributes[name]);
+
+      if (!mergedAttribute) {
+        console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the ' + name + ' attribute.');
+        return null;
+      }
+
+      mergedGeometry.setAttribute(name, mergedAttribute);
+    } // merge morph attributes
+
+
+    for (var name in morphAttributes) {
+      var numMorphTargets = morphAttributes[name][0].length;
+      if (numMorphTargets === 0) break;
+      mergedGeometry.morphAttributes = mergedGeometry.morphAttributes || {};
+      mergedGeometry.morphAttributes[name] = [];
+
+      for (var i = 0; i < numMorphTargets; ++i) {
+        var morphAttributesToMerge = [];
+
+        for (var j = 0; j < morphAttributes[name].length; ++j) {
+          morphAttributesToMerge.push(morphAttributes[name][j][i]);
+        }
+
+        var mergedMorphAttribute = this.mergeBufferAttributes(morphAttributesToMerge);
+
+        if (!mergedMorphAttribute) {
+          console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the ' + name + ' morphAttribute.');
+          return null;
+        }
+
+        mergedGeometry.morphAttributes[name].push(mergedMorphAttribute);
+      }
+    }
+
+    return mergedGeometry;
+  },
+
+  /**
+   * @param {Array<BufferAttribute>} attributes
+   * @return {BufferAttribute}
+   */
+  mergeBufferAttributes: function (attributes) {
+    var TypedArray;
+    var itemSize;
+    var normalized;
+    var arrayLength = 0;
+
+    for (var i = 0; i < attributes.length; ++i) {
+      var attribute = attributes[i];
+
+      if (attribute.isInterleavedBufferAttribute) {
+        console.error('THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. InterleavedBufferAttributes are not supported.');
+        return null;
+      }
+
+      if (TypedArray === undefined) TypedArray = attribute.array.constructor;
+
+      if (TypedArray !== attribute.array.constructor) {
+        console.error('THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.array must be of consistent array types across matching attributes.');
+        return null;
+      }
+
+      if (itemSize === undefined) itemSize = attribute.itemSize;
+
+      if (itemSize !== attribute.itemSize) {
+        console.error('THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.itemSize must be consistent across matching attributes.');
+        return null;
+      }
+
+      if (normalized === undefined) normalized = attribute.normalized;
+
+      if (normalized !== attribute.normalized) {
+        console.error('THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.normalized must be consistent across matching attributes.');
+        return null;
+      }
+
+      arrayLength += attribute.array.length;
+    }
+
+    var array = new TypedArray(arrayLength);
+    var offset = 0;
+
+    for (var i = 0; i < attributes.length; ++i) {
+      array.set(attributes[i].array, offset);
+      offset += attributes[i].array.length;
+    }
+
+    return new _threeModule.BufferAttribute(array, itemSize, normalized);
+  },
+
+  /**
+   * @param {Array<BufferAttribute>} attributes
+   * @return {Array<InterleavedBufferAttribute>}
+   */
+  interleaveAttributes: function (attributes) {
+    // Interleaves the provided attributes into an InterleavedBuffer and returns
+    // a set of InterleavedBufferAttributes for each attribute
+    var TypedArray;
+    var arrayLength = 0;
+    var stride = 0; // calculate the the length and type of the interleavedBuffer
+
+    for (var i = 0, l = attributes.length; i < l; ++i) {
+      var attribute = attributes[i];
+      if (TypedArray === undefined) TypedArray = attribute.array.constructor;
+
+      if (TypedArray !== attribute.array.constructor) {
+        console.error('AttributeBuffers of different types cannot be interleaved');
+        return null;
+      }
+
+      arrayLength += attribute.array.length;
+      stride += attribute.itemSize;
+    } // Create the set of buffer attributes
+
+
+    var interleavedBuffer = new _threeModule.InterleavedBuffer(new TypedArray(arrayLength), stride);
+    var offset = 0;
+    var res = [];
+    var getters = ['getX', 'getY', 'getZ', 'getW'];
+    var setters = ['setX', 'setY', 'setZ', 'setW'];
+
+    for (var j = 0, l = attributes.length; j < l; j++) {
+      var attribute = attributes[j];
+      var itemSize = attribute.itemSize;
+      var count = attribute.count;
+      var iba = new _threeModule.InterleavedBufferAttribute(interleavedBuffer, itemSize, offset, attribute.normalized);
+      res.push(iba);
+      offset += itemSize; // Move the data for each attribute into the new interleavedBuffer
+      // at the appropriate offset
+
+      for (var c = 0; c < count; c++) {
+        for (var k = 0; k < itemSize; k++) {
+          iba[setters[k]](c, attribute[getters[k]](c));
+        }
+      }
+    }
+
+    return res;
+  },
+
+  /**
+   * @param {Array<BufferGeometry>} geometry
+   * @return {number}
+   */
+  estimateBytesUsed: function (geometry) {
+    // Return the estimated memory used by this geometry in bytes
+    // Calculate using itemSize, count, and BYTES_PER_ELEMENT to account
+    // for InterleavedBufferAttributes.
+    var mem = 0;
+
+    for (var name in geometry.attributes) {
+      var attr = geometry.getAttribute(name);
+      mem += attr.count * attr.itemSize * attr.array.BYTES_PER_ELEMENT;
+    }
+
+    var indices = geometry.getIndex();
+    mem += indices ? indices.count * indices.itemSize * indices.array.BYTES_PER_ELEMENT : 0;
+    return mem;
+  },
+
+  /**
+   * @param {BufferGeometry} geometry
+   * @param {number} tolerance
+   * @return {BufferGeometry>}
+   */
+  mergeVertices: function (geometry, tolerance = 1e-4) {
+    tolerance = Math.max(tolerance, Number.EPSILON); // Generate an index buffer if the geometry doesn't have one, or optimize it
+    // if it's already available.
+
+    var hashToIndex = {};
+    var indices = geometry.getIndex();
+    var positions = geometry.getAttribute('position');
+    var vertexCount = indices ? indices.count : positions.count; // next value for triangle indices
+
+    var nextIndex = 0; // attributes and new attribute arrays
+
+    var attributeNames = Object.keys(geometry.attributes);
+    var attrArrays = {};
+    var morphAttrsArrays = {};
+    var newIndices = [];
+    var getters = ['getX', 'getY', 'getZ', 'getW']; // initialize the arrays
+
+    for (var i = 0, l = attributeNames.length; i < l; i++) {
+      var name = attributeNames[i];
+      attrArrays[name] = [];
+      var morphAttr = geometry.morphAttributes[name];
+
+      if (morphAttr) {
+        morphAttrsArrays[name] = new Array(morphAttr.length).fill().map(() => []);
+      }
+    } // convert the error tolerance to an amount of decimal places to truncate to
+
+
+    var decimalShift = Math.log10(1 / tolerance);
+    var shiftMultiplier = Math.pow(10, decimalShift);
+
+    for (var i = 0; i < vertexCount; i++) {
+      var index = indices ? indices.getX(i) : i; // Generate a hash for the vertex attributes at the current index 'i'
+
+      var hash = '';
+
+      for (var j = 0, l = attributeNames.length; j < l; j++) {
+        var name = attributeNames[j];
+        var attribute = geometry.getAttribute(name);
+        var itemSize = attribute.itemSize;
+
+        for (var k = 0; k < itemSize; k++) {
+          // double tilde truncates the decimal value
+          hash += `${~~(attribute[getters[k]](index) * shiftMultiplier)},`;
+        }
+      } // Add another reference to the vertex if it's already
+      // used by another index
+
+
+      if (hash in hashToIndex) {
+        newIndices.push(hashToIndex[hash]);
+      } else {
+        // copy data to the new index in the attribute arrays
+        for (var j = 0, l = attributeNames.length; j < l; j++) {
+          var name = attributeNames[j];
+          var attribute = geometry.getAttribute(name);
+          var morphAttr = geometry.morphAttributes[name];
+          var itemSize = attribute.itemSize;
+          var newarray = attrArrays[name];
+          var newMorphArrays = morphAttrsArrays[name];
+
+          for (var k = 0; k < itemSize; k++) {
+            var getterFunc = getters[k];
+            newarray.push(attribute[getterFunc](index));
+
+            if (morphAttr) {
+              for (var m = 0, ml = morphAttr.length; m < ml; m++) {
+                newMorphArrays[m].push(morphAttr[m][getterFunc](index));
+              }
+            }
+          }
+        }
+
+        hashToIndex[hash] = nextIndex;
+        newIndices.push(nextIndex);
+        nextIndex++;
+      }
+    } // Generate typed arrays from new attribute arrays and update
+    // the attributeBuffers
+
+
+    const result = geometry.clone();
+
+    for (var i = 0, l = attributeNames.length; i < l; i++) {
+      var name = attributeNames[i];
+      var oldAttribute = geometry.getAttribute(name);
+      var buffer = new oldAttribute.array.constructor(attrArrays[name]);
+      var attribute = new _threeModule.BufferAttribute(buffer, oldAttribute.itemSize, oldAttribute.normalized);
+      result.setAttribute(name, attribute); // Update the attribute arrays
+
+      if (name in morphAttrsArrays) {
+        for (var j = 0; j < morphAttrsArrays[name].length; j++) {
+          var oldMorphAttribute = geometry.morphAttributes[name][j];
+          var buffer = new oldMorphAttribute.array.constructor(morphAttrsArrays[name][j]);
+          var morphAttribute = new _threeModule.BufferAttribute(buffer, oldMorphAttribute.itemSize, oldMorphAttribute.normalized);
+          result.morphAttributes[name][j] = morphAttribute;
+        }
+      }
+    } // indices
+
+
+    result.setIndex(newIndices);
+    return result;
+  },
+
+  /**
+   * @param {BufferGeometry} geometry
+   * @param {number} drawMode
+   * @return {BufferGeometry>}
+   */
+  toTrianglesDrawMode: function (geometry, drawMode) {
+    if (drawMode === _threeModule.TrianglesDrawMode) {
+      console.warn('THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles.');
+      return geometry;
+    }
+
+    if (drawMode === _threeModule.TriangleFanDrawMode || drawMode === _threeModule.TriangleStripDrawMode) {
+      var index = geometry.getIndex(); // generate index if not present
+
+      if (index === null) {
+        var indices = [];
+        var position = geometry.getAttribute('position');
+
+        if (position !== undefined) {
+          for (var i = 0; i < position.count; i++) {
+            indices.push(i);
+          }
+
+          geometry.setIndex(indices);
+          index = geometry.getIndex();
+        } else {
+          console.error('THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. Processing not possible.');
+          return geometry;
+        }
+      } //
+
+
+      var numberOfTriangles = index.count - 2;
+      var newIndices = [];
+
+      if (drawMode === _threeModule.TriangleFanDrawMode) {
+        // gl.TRIANGLE_FAN
+        for (var i = 1; i <= numberOfTriangles; i++) {
+          newIndices.push(index.getX(0));
+          newIndices.push(index.getX(i));
+          newIndices.push(index.getX(i + 1));
+        }
+      } else {
+        // gl.TRIANGLE_STRIP
+        for (var i = 0; i < numberOfTriangles; i++) {
+          if (i % 2 === 0) {
+            newIndices.push(index.getX(i));
+            newIndices.push(index.getX(i + 1));
+            newIndices.push(index.getX(i + 2));
+          } else {
+            newIndices.push(index.getX(i + 2));
+            newIndices.push(index.getX(i + 1));
+            newIndices.push(index.getX(i));
+          }
+        }
+      }
+
+      if (newIndices.length / 3 !== numberOfTriangles) {
+        console.error('THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unable to generate correct amount of triangles.');
+      } // build final geometry
+
+
+      var newGeometry = geometry.clone();
+      newGeometry.setIndex(newIndices);
+      newGeometry.clearGroups();
+      return newGeometry;
+    } else {
+      console.error('THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unknown draw mode:', drawMode);
+      return geometry;
+    }
+  },
+
+  /**
+   * Calculates the morphed attributes of a morphed/skinned BufferGeometry.
+   * Helpful for Raytracing or Decals.
+   * @param {Mesh | Line | Points} object An instance of Mesh, Line or Points.
+   * @return {Object} An Object with original position/normal attributes and morphed ones.
+   */
+  computeMorphedAttributes: function (object) {
+    if (object.geometry.isBufferGeometry !== true) {
+      console.error('THREE.BufferGeometryUtils: Geometry is not of type BufferGeometry.');
+      return null;
+    }
+
+    var _vA = new _threeModule.Vector3();
+
+    var _vB = new _threeModule.Vector3();
+
+    var _vC = new _threeModule.Vector3();
+
+    var _tempA = new _threeModule.Vector3();
+
+    var _tempB = new _threeModule.Vector3();
+
+    var _tempC = new _threeModule.Vector3();
+
+    var _morphA = new _threeModule.Vector3();
+
+    var _morphB = new _threeModule.Vector3();
+
+    var _morphC = new _threeModule.Vector3();
+
+    function _calculateMorphedAttributeData(object, material, attribute, morphAttribute, morphTargetsRelative, a, b, c, modifiedAttributeArray) {
+      _vA.fromBufferAttribute(attribute, a);
+
+      _vB.fromBufferAttribute(attribute, b);
+
+      _vC.fromBufferAttribute(attribute, c);
+
+      var morphInfluences = object.morphTargetInfluences;
+
+      if (material.morphTargets && morphAttribute && morphInfluences) {
+        _morphA.set(0, 0, 0);
+
+        _morphB.set(0, 0, 0);
+
+        _morphC.set(0, 0, 0);
+
+        for (var i = 0, il = morphAttribute.length; i < il; i++) {
+          var influence = morphInfluences[i];
+          var morph = morphAttribute[i];
+          if (influence === 0) continue;
+
+          _tempA.fromBufferAttribute(morph, a);
+
+          _tempB.fromBufferAttribute(morph, b);
+
+          _tempC.fromBufferAttribute(morph, c);
+
+          if (morphTargetsRelative) {
+            _morphA.addScaledVector(_tempA, influence);
+
+            _morphB.addScaledVector(_tempB, influence);
+
+            _morphC.addScaledVector(_tempC, influence);
+          } else {
+            _morphA.addScaledVector(_tempA.sub(_vA), influence);
+
+            _morphB.addScaledVector(_tempB.sub(_vB), influence);
+
+            _morphC.addScaledVector(_tempC.sub(_vC), influence);
+          }
+        }
+
+        _vA.add(_morphA);
+
+        _vB.add(_morphB);
+
+        _vC.add(_morphC);
+      }
+
+      if (object.isSkinnedMesh) {
+        object.boneTransform(a, _vA);
+        object.boneTransform(b, _vB);
+        object.boneTransform(c, _vC);
+      }
+
+      modifiedAttributeArray[a * 3 + 0] = _vA.x;
+      modifiedAttributeArray[a * 3 + 1] = _vA.y;
+      modifiedAttributeArray[a * 3 + 2] = _vA.z;
+      modifiedAttributeArray[b * 3 + 0] = _vB.x;
+      modifiedAttributeArray[b * 3 + 1] = _vB.y;
+      modifiedAttributeArray[b * 3 + 2] = _vB.z;
+      modifiedAttributeArray[c * 3 + 0] = _vC.x;
+      modifiedAttributeArray[c * 3 + 1] = _vC.y;
+      modifiedAttributeArray[c * 3 + 2] = _vC.z;
+    }
+
+    var geometry = object.geometry;
+    var material = object.material;
+    var a, b, c;
+    var index = geometry.index;
+    var positionAttribute = geometry.attributes.position;
+    var morphPosition = geometry.morphAttributes.position;
+    var morphTargetsRelative = geometry.morphTargetsRelative;
+    var normalAttribute = geometry.attributes.normal;
+    var morphNormal = geometry.morphAttributes.position;
+    var groups = geometry.groups;
+    var drawRange = geometry.drawRange;
+    var i, j, il, jl;
+    var group, groupMaterial;
+    var start, end;
+    var modifiedPosition = new Float32Array(positionAttribute.count * positionAttribute.itemSize);
+    var modifiedNormal = new Float32Array(normalAttribute.count * normalAttribute.itemSize);
+
+    if (index !== null) {
+      // indexed buffer geometry
+      if (Array.isArray(material)) {
+        for (i = 0, il = groups.length; i < il; i++) {
+          group = groups[i];
+          groupMaterial = material[group.materialIndex];
+          start = Math.max(group.start, drawRange.start);
+          end = Math.min(group.start + group.count, drawRange.start + drawRange.count);
+
+          for (j = start, jl = end; j < jl; j += 3) {
+            a = index.getX(j);
+            b = index.getX(j + 1);
+            c = index.getX(j + 2);
+
+            _calculateMorphedAttributeData(object, groupMaterial, positionAttribute, morphPosition, morphTargetsRelative, a, b, c, modifiedPosition);
+
+            _calculateMorphedAttributeData(object, groupMaterial, normalAttribute, morphNormal, morphTargetsRelative, a, b, c, modifiedNormal);
+          }
+        }
+      } else {
+        start = Math.max(0, drawRange.start);
+        end = Math.min(index.count, drawRange.start + drawRange.count);
+
+        for (i = start, il = end; i < il; i += 3) {
+          a = index.getX(i);
+          b = index.getX(i + 1);
+          c = index.getX(i + 2);
+
+          _calculateMorphedAttributeData(object, material, positionAttribute, morphPosition, morphTargetsRelative, a, b, c, modifiedPosition);
+
+          _calculateMorphedAttributeData(object, material, normalAttribute, morphNormal, morphTargetsRelative, a, b, c, modifiedNormal);
+        }
+      }
+    } else if (positionAttribute !== undefined) {
+      // non-indexed buffer geometry
+      if (Array.isArray(material)) {
+        for (i = 0, il = groups.length; i < il; i++) {
+          group = groups[i];
+          groupMaterial = material[group.materialIndex];
+          start = Math.max(group.start, drawRange.start);
+          end = Math.min(group.start + group.count, drawRange.start + drawRange.count);
+
+          for (j = start, jl = end; j < jl; j += 3) {
+            a = j;
+            b = j + 1;
+            c = j + 2;
+
+            _calculateMorphedAttributeData(object, groupMaterial, positionAttribute, morphPosition, morphTargetsRelative, a, b, c, modifiedPosition);
+
+            _calculateMorphedAttributeData(object, groupMaterial, normalAttribute, morphNormal, morphTargetsRelative, a, b, c, modifiedNormal);
+          }
+        }
+      } else {
+        start = Math.max(0, drawRange.start);
+        end = Math.min(positionAttribute.count, drawRange.start + drawRange.count);
+
+        for (i = start, il = end; i < il; i += 3) {
+          a = i;
+          b = i + 1;
+          c = i + 2;
+
+          _calculateMorphedAttributeData(object, material, positionAttribute, morphPosition, morphTargetsRelative, a, b, c, modifiedPosition);
+
+          _calculateMorphedAttributeData(object, material, normalAttribute, morphNormal, morphTargetsRelative, a, b, c, modifiedNormal);
+        }
+      }
+    }
+
+    var morphedPositionAttribute = new _threeModule.Float32BufferAttribute(modifiedPosition, 3);
+    var morphedNormalAttribute = new _threeModule.Float32BufferAttribute(modifiedNormal, 3);
+    return {
+      positionAttribute: positionAttribute,
+      normalAttribute: normalAttribute,
+      morphedPositionAttribute: morphedPositionAttribute,
+      morphedNormalAttribute: morphedNormalAttribute
+    };
+  }
+};
+exports.BufferGeometryUtils = BufferGeometryUtils;
+},{"../../../build/three.module.js":"../node_modules/three/build/three.module.js"}],"../src/Constants.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.CONTAINED = exports.INTERSECTED = exports.NOT_INTERSECTED = exports.SAH = exports.AVERAGE = exports.CENTER = void 0;
+// Split strategy constants
+var CENTER = 0;
+exports.CENTER = CENTER;
+var AVERAGE = 1;
+exports.AVERAGE = AVERAGE;
+var SAH = 2;
+exports.SAH = SAH;
+var NOT_INTERSECTED = 0;
+exports.NOT_INTERSECTED = NOT_INTERSECTED;
+var INTERSECTED = 1;
+exports.INTERSECTED = INTERSECTED;
+var CONTAINED = 2;
+exports.CONTAINED = CONTAINED;
+},{}],"../src/MeshBVHNode.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var MeshBVHNode = function MeshBVHNode() {// internal nodes have boundingData, left, right, and splitAxis
+  // leaf nodes have offset and count (referring to primitives in the mesh geometry)
+
+  _classCallCheck(this, MeshBVHNode);
+};
+
+exports.default = MeshBVHNode;
+},{}],"../src/Utils/ArrayBoxUtilities.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.boxToArray = boxToArray;
+exports.arrayToBox = arrayToBox;
+exports.getLongestEdgeIndex = getLongestEdgeIndex;
+
+// Returns a Float32Array representing the bounds data for box.
+function boxToArray(bx) {
+  var arr = new Float32Array(6);
+  arr[0] = bx.min.x;
+  arr[1] = bx.min.y;
+  arr[2] = bx.min.z;
+  arr[3] = bx.max.x;
+  arr[4] = bx.max.y;
+  arr[5] = bx.max.z;
+  return arr;
+}
+
+function arrayToBox(arr, target) {
+  target.min.x = arr[0];
+  target.min.y = arr[1];
+  target.min.z = arr[2];
+  target.max.x = arr[3];
+  target.max.y = arr[4];
+  target.max.z = arr[5];
+  return target;
+}
+
+function getLongestEdgeIndex(bounds) {
+  var splitDimIdx = -1;
+  var splitDist = -Infinity;
+
+  for (var i = 0; i < 3; i++) {
+    var dist = bounds[i + 3] - bounds[i];
+
+    if (dist > splitDist) {
+      splitDist = dist;
+      splitDimIdx = i;
+    }
+  }
+
+  return splitDimIdx;
+}
+},{}],"../src/buildFunctions.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.buildTree = buildTree;
+exports.buildPackedTree = buildPackedTree;
+exports.IS_LEAFNODE_FLAG = exports.BYTES_PER_NODE = void 0;
+
+var _three = require("three");
+
+var _MeshBVHNode = _interopRequireDefault(require("./MeshBVHNode.js"));
+
+var _ArrayBoxUtilities = require("./Utils/ArrayBoxUtilities.js");
+
+var _Constants = require("./Constants.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
+
+function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
+
+function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
+
+// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics
+var FLOAT32_EPSILON = Math.pow(2, -24);
+var xyzFields = ['x', 'y', 'z'];
+var boxTemp = new _three.Box3();
+
+function ensureIndex(geo) {
+  if (!geo.index) {
+    var vertexCount = geo.attributes.position.count;
+    var index = new (vertexCount > 65535 ? Uint32Array : Uint16Array)(vertexCount);
+    geo.setIndex(new _three.BufferAttribute(index, 1));
+
+    for (var i = 0; i < vertexCount; i++) {
+      index[i] = i;
+    }
+  }
+} // Computes the set of { offset, count } ranges which need independent BVH roots. Each
+// region in the geometry index that belongs to a different set of material groups requires
+// a separate BVH root, so that triangles indices belonging to one group never get swapped
+// with triangle indices belongs to another group. For example, if the groups were like this:
+//
+// [-------------------------------------------------------------]
+// |__________________|
+//   g0 = [0, 20]  |______________________||_____________________|
+//                      g1 = [16, 40]           g2 = [41, 60]
+//
+// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].
+
+
+function getRootIndexRanges(geo) {
+  if (!geo.groups || !geo.groups.length) {
+    return [{
+      offset: 0,
+      count: geo.index.count / 3
+    }];
+  }
+
+  var ranges = [];
+  var rangeBoundaries = new Set();
+
+  var _iterator = _createForOfIteratorHelper(geo.groups),
+      _step;
+
+  try {
+    for (_iterator.s(); !(_step = _iterator.n()).done;) {
+      var group = _step.value;
+      rangeBoundaries.add(group.start);
+      rangeBoundaries.add(group.start + group.count);
+    } // note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(
+
+  } catch (err) {
+    _iterator.e(err);
+  } finally {
+    _iterator.f();
+  }
+
+  var sortedBoundaries = Array.from(rangeBoundaries.values()).sort(function (a, b) {
+    return a - b;
+  });
+
+  for (var i = 0; i < sortedBoundaries.length - 1; i++) {
+    var start = sortedBoundaries[i],
+        end = sortedBoundaries[i + 1];
+    ranges.push({
+      offset: start / 3,
+      count: (end - start) / 3
+    });
+  }
+
+  return ranges;
+} // computes the union of the bounds of all of the given triangles and puts the resulting box in target. If
+// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.
+// These are computed together to avoid redundant accesses to bounds array.
+
+
+function getBounds(triangleBounds, offset, count, target) {
+  var centroidTarget = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : null;
+  var minx = Infinity;
+  var miny = Infinity;
+  var minz = Infinity;
+  var maxx = -Infinity;
+  var maxy = -Infinity;
+  var maxz = -Infinity;
+  var cminx = Infinity;
+  var cminy = Infinity;
+  var cminz = Infinity;
+  var cmaxx = -Infinity;
+  var cmaxy = -Infinity;
+  var cmaxz = -Infinity;
+  var includeCentroid = centroidTarget !== null;
+
+  for (var i = offset * 6, end = (offset + count) * 6; i < end; i += 6) {
+    var cx = triangleBounds[i + 0];
+    var hx = triangleBounds[i + 1];
+    var lx = cx - hx;
+    var rx = cx + hx;
+    if (lx < minx) minx = lx;
+    if (rx > maxx) maxx = rx;
+    if (includeCentroid && cx < cminx) cminx = cx;
+    if (includeCentroid && cx > cmaxx) cmaxx = cx;
+    var cy = triangleBounds[i + 2];
+    var hy = triangleBounds[i + 3];
+    var ly = cy - hy;
+    var ry = cy + hy;
+    if (ly < miny) miny = ly;
+    if (ry > maxy) maxy = ry;
+    if (includeCentroid && cy < cminy) cminy = cy;
+    if (includeCentroid && cy > cmaxy) cmaxy = cy;
+    var cz = triangleBounds[i + 4];
+    var hz = triangleBounds[i + 5];
+    var lz = cz - hz;
+    var rz = cz + hz;
+    if (lz < minz) minz = lz;
+    if (rz > maxz) maxz = rz;
+    if (includeCentroid && cz < cminz) cminz = cz;
+    if (includeCentroid && cz > cmaxz) cmaxz = cz;
+  }
+
+  target[0] = minx;
+  target[1] = miny;
+  target[2] = minz;
+  target[3] = maxx;
+  target[4] = maxy;
+  target[5] = maxz;
+
+  if (includeCentroid) {
+    centroidTarget[0] = cminx;
+    centroidTarget[1] = cminy;
+    centroidTarget[2] = cminz;
+    centroidTarget[3] = cmaxx;
+    centroidTarget[4] = cmaxy;
+    centroidTarget[5] = cmaxz;
+  }
+} // A stand alone function for retrieving the centroid bounds.
+
+
+function getCentroidBounds(triangleBounds, offset, count, centroidTarget) {
+  var cminx = Infinity;
+  var cminy = Infinity;
+  var cminz = Infinity;
+  var cmaxx = -Infinity;
+  var cmaxy = -Infinity;
+  var cmaxz = -Infinity;
+
+  for (var i = offset * 6, end = (offset + count) * 6; i < end; i += 6) {
+    var cx = triangleBounds[i + 0];
+    if (cx < cminx) cminx = cx;
+    if (cx > cmaxx) cmaxx = cx;
+    var cy = triangleBounds[i + 2];
+    if (cy < cminy) cminy = cy;
+    if (cy > cmaxy) cmaxy = cy;
+    var cz = triangleBounds[i + 4];
+    if (cz < cminz) cminz = cz;
+    if (cz > cmaxz) cmaxz = cz;
+  }
+
+  centroidTarget[0] = cminx;
+  centroidTarget[1] = cminy;
+  centroidTarget[2] = cminz;
+  centroidTarget[3] = cmaxx;
+  centroidTarget[4] = cmaxy;
+  centroidTarget[5] = cmaxz;
+} // reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split
+// will be on the left and elements on the right side of the split will be on the right. returns the index
+// of the first element on the right side, or offset + count if there are no elements on the right side.
+
+
+function partition(index, triangleBounds, sahPlanes, offset, count, split) {
+  var left = offset;
+  var right = offset + count - 1;
+  var pos = split.pos;
+  var axisOffset = split.axis * 2; // hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme
+
+  while (true) {
+    while (left <= right && triangleBounds[left * 6 + axisOffset] < pos) {
+      left++;
+    }
+
+    while (left <= right && triangleBounds[right * 6 + axisOffset] >= pos) {
+      right--;
+    }
+
+    if (left < right) {
+      // we need to swap all of the information associated with the triangles at index
+      // left and right; that's the verts in the geometry index, the bounds,
+      // and perhaps the SAH planes
+      for (var i = 0; i < 3; i++) {
+        var t0 = index[left * 3 + i];
+        index[left * 3 + i] = index[right * 3 + i];
+        index[right * 3 + i] = t0;
+        var t1 = triangleBounds[left * 6 + i * 2 + 0];
+        triangleBounds[left * 6 + i * 2 + 0] = triangleBounds[right * 6 + i * 2 + 0];
+        triangleBounds[right * 6 + i * 2 + 0] = t1;
+        var t2 = triangleBounds[left * 6 + i * 2 + 1];
+        triangleBounds[left * 6 + i * 2 + 1] = triangleBounds[right * 6 + i * 2 + 1];
+        triangleBounds[right * 6 + i * 2 + 1] = t2;
+      }
+
+      if (sahPlanes) {
+        for (var _i = 0; _i < 3; _i++) {
+          var t = sahPlanes[_i][left];
+          sahPlanes[_i][left] = sahPlanes[_i][right];
+          sahPlanes[_i][right] = t;
+        }
+      }
+
+      left++;
+      right--;
+    } else {
+      return left;
+    }
+  }
+}
+
+function getOptimalSplit(nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy) {
+  var axis = -1;
+  var pos = 0; // Center
+
+  if (strategy === _Constants.CENTER) {
+    axis = (0, _ArrayBoxUtilities.getLongestEdgeIndex)(centroidBoundingData);
+
+    if (axis !== -1) {
+      pos = (centroidBoundingData[axis] + centroidBoundingData[axis + 3]) / 2;
+    }
+  } else if (strategy === _Constants.AVERAGE) {
+    axis = (0, _ArrayBoxUtilities.getLongestEdgeIndex)(nodeBoundingData);
+
+    if (axis !== -1) {
+      pos = getAverage(triangleBounds, offset, count, axis);
+    }
+  } else if (strategy === _Constants.SAH) {
+    // Surface Area Heuristic
+    // In order to make this code more terse, the x, y, and z
+    // variables of various structures have been stuffed into
+    // 0, 1, and 2 array indices so they can be easily computed
+    // and accessed within array iteration
+    // Cost values defineed for operations. We're using bounds for traversal, so
+    // the cost of traversing one more layer is more than intersecting a triangle.
+    var TRAVERSAL_COST = 3;
+    var INTERSECTION_COST = 1;
+    var bb = (0, _ArrayBoxUtilities.arrayToBox)(nodeBoundingData, boxTemp); // Define the width, height, and depth of the bounds as a box
+
+    var dim = [bb.max.x - bb.min.x, bb.max.y - bb.min.y, bb.max.z - bb.min.z];
+    var sa = 2 * (dim[0] * dim[1] + dim[0] * dim[2] + dim[1] * dim[2]); // Get the precalculated planes based for the triangles we're
+    // testing here
+
+    var filteredLists = [[], [], []];
+
+    for (var i = offset, end = offset + count; i < end; i++) {
+      for (var v = 0; v < 3; v++) {
+        filteredLists[v].push(sahPlanes[v][i]);
+      }
+    }
+
+    filteredLists.forEach(function (planes) {
+      return planes.sort(function (a, b) {
+        return a.p - b.p;
+      });
+    }); // this bounds surface area, left bound SA, left triangles, right bound SA, right triangles
+
+    var getCost = function getCost(sa, sal, nl, sar, nr) {
+      return TRAVERSAL_COST + INTERSECTION_COST * (sal / sa * nl + sar / sa * nr);
+    }; // the cost of _not_ splitting into smaller bounds
+
+
+    var noSplitCost = INTERSECTION_COST * count;
+    axis = -1;
+    var bestCost = noSplitCost;
+
+    for (var _i2 = 0; _i2 < 3; _i2++) {
+      // o1 and o2 represent the _other_ two axes in the
+      // the space. So if we're checking the x (0) dimension,
+      // then o1 and o2 would be y and z (1 and 2)
+      var o1 = (_i2 + 1) % 3;
+      var o2 = (_i2 + 2) % 3;
+      var bmin = bb.min[xyzFields[_i2]];
+      var bmax = bb.max[xyzFields[_i2]];
+      var planes = filteredLists[_i2]; // The number of left and right triangles on either side
+      // given the current split
+
+      var nl = 0;
+      var nr = count;
+
+      for (var p = 0; p < planes.length; p++) {
+        var pinfo = planes[p]; // As the plane moves, we have to increment or decrement the
+        // number of triangles on either side of the plane
+
+        nl++;
+        nr--; // the distance from the plane to the edge of the broader bounds
+
+        var ldim = pinfo.p - bmin;
+        var rdim = bmax - pinfo.p; // same for the other two dimensions
+
+        var ldimo1 = dim[o1],
+            rdimo1 = dim[o1];
+        var ldimo2 = dim[o2],
+            rdimo2 = dim[o2];
+        /*
+        // compute the other bounding planes for the box
+        // if only the current triangles are considered to
+        // be in the box
+        // This is really slow and probably not really worth it
+        const o1planes = sahPlanes[o1];
+        const o2planes = sahPlanes[o2];
+        let lmin = Infinity, lmax = -Infinity;
+        let rmin = Infinity, rmax = -Infinity;
+        planes.forEach((p, i) => {
+        const tri2 = p.tri * 2;
+        const inf1 = o1planes[tri2 + 0];
+        const inf2 = o1planes[tri2 + 1];
+        if (i <= nl) {
+        lmin = Math.min(inf1.p, inf2.p, lmin);
+        lmax = Math.max(inf1.p, inf2.p, lmax);
+        }
+        if (i >= nr) {
+        rmin = Math.min(inf1.p, inf2.p, rmin);
+        rmax = Math.max(inf1.p, inf2.p, rmax);
+        }
+        })
+        ldimo1 = Math.min(lmax - lmin, ldimo1);
+        rdimo1 = Math.min(rmax - rmin, rdimo1);
+        		planes.forEach((p, i) => {
+        const tri2 = p.tri * 2;
+        const inf1 = o2planes[tri2 + 0];
+        const inf2 = o2planes[tri2 + 1];
+        if (i <= nl) {
+        lmin = Math.min(inf1.p, inf2.p, lmin);
+        lmax = Math.max(inf1.p, inf2.p, lmax);
+        }
+        if (i >= nr) {
+        rmin = Math.min(inf1.p, inf2.p, rmin);
+        rmax = Math.max(inf1.p, inf2.p, rmax);
+        }
+        })
+        ldimo2 = Math.min(lmax - lmin, ldimo2);
+        rdimo2 = Math.min(rmax - rmin, rdimo2);
+        */
+        // surface areas and cost
+
+        var sal = 2 * (ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim);
+        var sar = 2 * (rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim);
+        var cost = getCost(sa, sal, nl, sar, nr);
+
+        if (cost < bestCost) {
+          axis = _i2;
+          pos = pinfo.p;
+          bestCost = cost;
+        }
+      }
+    }
+  }
+
+  return {
+    axis: axis,
+    pos: pos
+  };
+} // returns the average coordinate on the specified axis of the all the provided triangles
+
+
+function getAverage(triangleBounds, offset, count, axis) {
+  var avg = 0;
+
+  for (var i = offset, end = offset + count; i < end; i++) {
+    avg += triangleBounds[i * 6 + axis * 2];
+  }
+
+  return avg / count;
+}
+
+function computeSAHPlanes(triangleBounds) {
+  var triCount = triangleBounds.length / 6;
+  var sahPlanes = [new Array(triCount), new Array(triCount), new Array(triCount)];
+
+  for (var tri = 0; tri < triCount; tri++) {
+    for (var el = 0; el < 3; el++) {
+      sahPlanes[el][tri] = {
+        p: triangleBounds[tri * 6 + el * 2],
+        tri: tri
+      };
+    }
+  }
+
+  return sahPlanes;
+} // precomputes the bounding box for each triangle; required for quickly calculating tree splits.
+// result is an array of size tris.length * 6 where triangle i maps to a
+// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,
+// representing the center and half-extent in each dimension of triangle i
+
+
+function computeTriangleBounds(geo) {
+  var verts = geo.attributes.position.array;
+  var index = geo.index.array;
+  var triCount = index.length / 3;
+  var triangleBounds = new Float32Array(triCount * 6);
+
+  for (var tri = 0; tri < triCount; tri++) {
+    var tri3 = tri * 3;
+    var tri6 = tri * 6;
+    var ai = index[tri3 + 0] * 3;
+    var bi = index[tri3 + 1] * 3;
+    var ci = index[tri3 + 2] * 3;
+
+    for (var el = 0; el < 3; el++) {
+      var a = verts[ai + el];
+      var b = verts[bi + el];
+      var c = verts[ci + el];
+      var min = a;
+      if (b < min) min = b;
+      if (c < min) min = c;
+      var max = a;
+      if (b > max) max = b;
+      if (c > max) max = c; // Increase the bounds size by float32 epsilon to avoid precision errors when
+      // converting to 32 bit float. Scale the epsilon by the size of the numbers being
+      // worked with.
+
+      var halfExtents = (max - min) / 2;
+      var el2 = el * 2;
+      triangleBounds[tri6 + el2 + 0] = min + halfExtents;
+      triangleBounds[tri6 + el2 + 1] = halfExtents + (Math.abs(min) + halfExtents) * FLOAT32_EPSILON;
+    }
+  }
+
+  return triangleBounds;
+}
+
+function buildTree(geo, options) {
+  // either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,
+  // recording the offset and count of its triangles and writing them into the reordered geometry index.
+  function splitNode(node, offset, count) {
+    var centroidBoundingData = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+    var depth = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
+
+    if (!reachedMaxDepth && depth >= maxDepth) {
+      reachedMaxDepth = true;
+
+      if (verbose) {
+        console.warn("MeshBVH: Max depth of ".concat(maxDepth, " reached when generating BVH. Consider increasing maxDepth."));
+        console.warn(this, geo);
+      }
+    } // early out if we've met our capacity
+
+
+    if (count <= maxLeafTris || depth >= maxDepth) {
+      node.offset = offset;
+      node.count = count;
+      return node;
+    } // Find where to split the volume
+
+
+    var split = getOptimalSplit(node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy);
+
+    if (split.axis === -1) {
+      node.offset = offset;
+      node.count = count;
+      return node;
+    }
+
+    var splitOffset = partition(indexArray, triangleBounds, sahPlanes, offset, count, split); // create the two new child nodes
+
+    if (splitOffset === offset || splitOffset === offset + count) {
+      node.offset = offset;
+      node.count = count;
+    } else {
+      node.splitAxis = split.axis; // create the left child and compute its bounding box
+
+      var left = new _MeshBVHNode.default();
+      var lstart = offset;
+      var lcount = splitOffset - offset;
+      node.left = left;
+      left.boundingData = new Float32Array(6);
+      getBounds(triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData);
+      splitNode(left, lstart, lcount, cacheCentroidBoundingData, depth + 1); // repeat for right
+
+      var right = new _MeshBVHNode.default();
+      var rstart = splitOffset;
+      var rcount = count - lcount;
+      node.right = right;
+      right.boundingData = new Float32Array(6);
+      getBounds(triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData);
+      splitNode(right, rstart, rcount, cacheCentroidBoundingData, depth + 1);
+    }
+
+    return node;
+  }
+
+  ensureIndex(geo);
+  var cacheCentroidBoundingData = new Float32Array(6);
+  var triangleBounds = computeTriangleBounds(geo);
+  var sahPlanes = options.strategy === _Constants.SAH ? computeSAHPlanes(triangleBounds) : null;
+  var indexArray = geo.index.array;
+  var maxDepth = options.maxDepth;
+  var verbose = options.verbose;
+  var maxLeafTris = options.maxLeafTris;
+  var strategy = options.strategy;
+  var reachedMaxDepth = false;
+  var roots = [];
+  var ranges = getRootIndexRanges(geo);
+
+  if (ranges.length === 1) {
+    var root = new _MeshBVHNode.default();
+    var range = ranges[0];
+
+    if (geo.boundingBox != null) {
+      root.boundingData = (0, _ArrayBoxUtilities.boxToArray)(geo.boundingBox);
+      getCentroidBounds(triangleBounds, range.offset, range.count, cacheCentroidBoundingData);
+    } else {
+      root.boundingData = new Float32Array(6);
+      getBounds(triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData);
+    }
+
+    splitNode(root, range.offset, range.count, cacheCentroidBoundingData);
+    roots.push(root);
+  } else {
+    var _iterator2 = _createForOfIteratorHelper(ranges),
+        _step2;
+
+    try {
+      for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
+        var _range = _step2.value;
+
+        var _root = new _MeshBVHNode.default();
+
+        _root.boundingData = new Float32Array(6);
+        getBounds(triangleBounds, _range.offset, _range.count, _root.boundingData, cacheCentroidBoundingData);
+        splitNode(_root, _range.offset, _range.count, cacheCentroidBoundingData);
+        roots.push(_root);
+      }
+    } catch (err) {
+      _iterator2.e(err);
+    } finally {
+      _iterator2.f();
+    }
+  } // if the geometry doesn't have a bounding box, then let's politely populate it using
+  // the work we did to determine the BVH root bounds
+
+
+  if (geo.boundingBox == null) {
+    var rootBox = new _three.Box3();
+    geo.boundingBox = new _three.Box3();
+
+    var _iterator3 = _createForOfIteratorHelper(roots),
+        _step3;
+
+    try {
+      for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
+        var _root2 = _step3.value;
+        geo.boundingBox.union((0, _ArrayBoxUtilities.arrayToBox)(_root2.boundingData, rootBox));
+      }
+    } catch (err) {
+      _iterator3.e(err);
+    } finally {
+      _iterator3.f();
+    }
+  }
+
+  return roots;
+}
+
+var BYTES_PER_NODE = 6 * 4 + 4 + 4;
+exports.BYTES_PER_NODE = BYTES_PER_NODE;
+var IS_LEAFNODE_FLAG = 0xFFFF;
+exports.IS_LEAFNODE_FLAG = IS_LEAFNODE_FLAG;
+
+function buildPackedTree(geo, options) {
+  // boundingData  				: 6 float32
+  // right / offset 				: 1 uint32
+  // splitAxis / isLeaf + count 	: 1 uint32 / 2 uint16
+  var roots = buildTree(geo, options);
+  var float32Array;
+  var uint32Array;
+  var uint16Array;
+  var packedRoots = [];
+
+  for (var i = 0; i < roots.length; i++) {
+    var root = roots[i];
+    var nodeCount = countNodes(root);
+    var buffer = new ArrayBuffer(BYTES_PER_NODE * nodeCount);
+    float32Array = new Float32Array(buffer);
+    uint32Array = new Uint32Array(buffer);
+    uint16Array = new Uint16Array(buffer);
+    populateBuffer(0, root);
+    packedRoots.push(buffer);
+  }
+
+  return packedRoots;
+
+  function countNodes(node) {
+    if (node.count) {
+      return 1;
+    } else {
+      return 1 + countNodes(node.left) + countNodes(node.right);
+    }
+  }
+
+  function populateBuffer(byteOffset, node) {
+    var stride4Offset = byteOffset / 4;
+    var stride2Offset = byteOffset / 2;
+    var isLeaf = !!node.count;
+    var boundingData = node.boundingData;
+
+    for (var _i3 = 0; _i3 < 6; _i3++) {
+      float32Array[stride4Offset + _i3] = boundingData[_i3];
+    }
+
+    if (isLeaf) {
+      var offset = node.offset;
+      var count = node.count;
+      uint32Array[stride4Offset + 6] = offset;
+      uint16Array[stride2Offset + 14] = count;
+      uint16Array[stride2Offset + 15] = IS_LEAFNODE_FLAG;
+      return byteOffset + BYTES_PER_NODE;
+    } else {
+      var left = node.left;
+      var right = node.right;
+      var splitAxis = node.splitAxis;
+      var nextUnusedPointer;
+      nextUnusedPointer = populateBuffer(byteOffset + BYTES_PER_NODE, left);
+
+      if (nextUnusedPointer / 4 > Math.pow(2, 32)) {
+        throw new Error('MeshBVH: Cannot store child pointer greater than 32 bits.');
+      }
+
+      uint32Array[stride4Offset + 6] = nextUnusedPointer / 4;
+      nextUnusedPointer = populateBuffer(nextUnusedPointer, right);
+      uint32Array[stride4Offset + 7] = splitAxis;
+      return nextUnusedPointer;
+    }
+  }
+}
+},{"three":"../node_modules/three/build/three.module.js","./MeshBVHNode.js":"../src/MeshBVHNode.js","./Utils/ArrayBoxUtilities.js":"../src/Utils/ArrayBoxUtilities.js","./Constants.js":"../src/Constants.js"}],"../src/Utils/SeparatingAxisBounds.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.areIntersecting = exports.SeparatingAxisBounds = void 0;
+
+var _three = require("three");
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var SeparatingAxisBounds =
+/*#__PURE__*/
+function () {
+  function SeparatingAxisBounds() {
+    _classCallCheck(this, SeparatingAxisBounds);
+
+    this.min = Infinity;
+    this.max = -Infinity;
+  }
+
+  _createClass(SeparatingAxisBounds, [{
+    key: "setFromPointsField",
+    value: function setFromPointsField(points, field) {
+      var min = Infinity;
+      var max = -Infinity;
+
+      for (var i = 0, l = points.length; i < l; i++) {
+        var p = points[i];
+        var val = p[field];
+        min = Math.min(val, min);
+        max = Math.max(val, max);
+      }
+
+      this.min = min;
+      this.max = max;
+    }
+  }, {
+    key: "setFromPoints",
+    value: function setFromPoints(axis, points) {
+      var min = Infinity;
+      var max = -Infinity;
+
+      for (var i = 0, l = points.length; i < l; i++) {
+        var p = points[i];
+        var val = axis.dot(p);
+        min = Math.min(val, min);
+        max = Math.max(val, max);
+      }
+
+      this.min = min;
+      this.max = max;
+    }
+  }, {
+    key: "isSeparated",
+    value: function isSeparated(other) {
+      return this.min > other.max || other.min > this.max;
+    }
+  }]);
+
+  return SeparatingAxisBounds;
+}();
+
+exports.SeparatingAxisBounds = SeparatingAxisBounds;
+
+SeparatingAxisBounds.prototype.setFromBox = function () {
+  var p = new _three.Vector3();
+  return function setFromBox(axis, box) {
+    var boxMin = box.min;
+    var boxMax = box.max;
+    var min = Infinity;
+    var max = -Infinity;
+
+    for (var x = 0; x <= 1; x++) {
+      for (var y = 0; y <= 1; y++) {
+        for (var z = 0; z <= 1; z++) {
+          p.x = boxMin.x * x + boxMax.x * (1 - x);
+          p.y = boxMin.y * y + boxMax.y * (1 - y);
+          p.z = boxMin.z * z + boxMax.z * (1 - z);
+          var val = axis.dot(p);
+          min = Math.min(val, min);
+          max = Math.max(val, max);
+        }
+      }
+    }
+
+    this.min = min;
+    this.max = max;
+  };
+}();
+
+var areIntersecting = function () {
+  var cacheSatBounds = new SeparatingAxisBounds();
+  return function areIntersecting(shape1, shape2) {
+    var points1 = shape1.points;
+    var satAxes1 = shape1.satAxes;
+    var satBounds1 = shape1.satBounds;
+    var points2 = shape2.points;
+    var satAxes2 = shape2.satAxes;
+    var satBounds2 = shape2.satBounds; // check axes of the first shape
+
+    for (var i = 0; i < 3; i++) {
+      var sb = satBounds1[i];
+      var sa = satAxes1[i];
+      cacheSatBounds.setFromPoints(sa, points2);
+      if (sb.isSeparated(cacheSatBounds)) return false;
+    } // check axes of the second shape
+
+
+    for (var _i = 0; _i < 3; _i++) {
+      var _sb = satBounds2[_i];
+      var _sa = satAxes2[_i];
+      cacheSatBounds.setFromPoints(_sa, points1);
+      if (_sb.isSeparated(cacheSatBounds)) return false;
+    }
+  };
+}();
+
+exports.areIntersecting = areIntersecting;
+},{"three":"../node_modules/three/build/three.module.js"}],"../src/Utils/MathUtilities.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.sphereIntersectTriangle = exports.closestPointsSegmentToSegment = exports.closestPointLineToLine = void 0;
+
+var _three = require("three");
+
+var closestPointLineToLine = function () {
+  // https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56
+  var dir1 = new _three.Vector3();
+  var dir2 = new _three.Vector3();
+  var v02 = new _three.Vector3();
+  return function closestPointLineToLine(l1, l2, result) {
+    var v0 = l1.start;
+    var v10 = dir1;
+    var v2 = l2.start;
+    var v32 = dir2;
+    v02.subVectors(v0, v2);
+    dir1.subVectors(l1.end, l2.start);
+    dir2.subVectors(l2.end, l2.start); // float d0232 = v02.Dot(v32);
+
+    var d0232 = v02.dot(v32); // float d3210 = v32.Dot(v10);
+
+    var d3210 = v32.dot(v10); // float d3232 = v32.Dot(v32);
+
+    var d3232 = v32.dot(v32); // float d0210 = v02.Dot(v10);
+
+    var d0210 = v02.dot(v10); // float d1010 = v10.Dot(v10);
+
+    var d1010 = v10.dot(v10); // float denom = d1010*d3232 - d3210*d3210;
+
+    var denom = d1010 * d3232 - d3210 * d3210;
+    var d, d2;
+
+    if (denom !== 0) {
+      d = (d0232 * d3210 - d0210 * d3232) / denom;
+    } else {
+      d = 0;
+    }
+
+    d2 = (d0232 + d * d3210) / d3232;
+    result.x = d;
+    result.y = d2;
+  };
+}();
+
+exports.closestPointLineToLine = closestPointLineToLine;
+
+var closestPointsSegmentToSegment = function () {
+  // https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187
+  var paramResult = new _three.Vector2();
+  var temp1 = new _three.Vector3();
+  var temp2 = new _three.Vector3();
+  return function closestPointsSegmentToSegment(l1, l2, target1, target2) {
+    closestPointLineToLine(l1, l2, paramResult);
+    var d = paramResult.x;
+    var d2 = paramResult.y;
+
+    if (d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1) {
+      l1.at(d, target1);
+      l2.at(d2, target2);
+      return;
+    } else if (d >= 0 && d <= 1) {
+      // Only d2 is out of bounds.
+      if (d2 < 0) {
+        l2.at(0, target2);
+      } else {
+        l2.at(1, target2);
+      }
+
+      l1.closestPointToPoint(target2, true, target1);
+      return;
+    } else if (d2 >= 0 && d2 <= 1) {
+      // Only d is out of bounds.
+      if (d < 0) {
+        l1.at(0, target1);
+      } else {
+        l1.at(1, target1);
+      }
+
+      l2.closestPointToPoint(target1, true, target2);
+      return;
+    } else {
+      // Both u and u2 are out of bounds.
+      var p;
+
+      if (d < 0) {
+        p = l1.start;
+      } else {
+        p = l1.end;
+      }
+
+      var p2;
+
+      if (d2 < 0) {
+        p2 = l2.start;
+      } else {
+        p2 = l2.end;
+      }
+
+      var closestPoint = temp1;
+      var closestPoint2 = temp2;
+      l1.closestPointToPoint(p2, true, temp1);
+      l2.closestPointToPoint(p, true, temp2);
+
+      if (closestPoint.distanceToSquared(p2) <= closestPoint2.distanceToSquared(p)) {
+        target1.copy(closestPoint);
+        target2.copy(p2);
+        return;
+      } else {
+        target1.copy(p);
+        target2.copy(closestPoint2);
+        return;
+      }
+    }
+  };
+}();
+
+exports.closestPointsSegmentToSegment = closestPointsSegmentToSegment;
+
+var sphereIntersectTriangle = function () {
+  // https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js
+  var closestPointTemp = new _three.Vector3();
+  var projectedPointTemp = new _three.Vector3();
+  var planeTemp = new _three.Plane();
+  var lineTemp = new _three.Line3();
+  return function sphereIntersectTriangle(sphere, triangle) {
+    var radius = sphere.radius,
+        center = sphere.center;
+    var a = triangle.a,
+        b = triangle.b,
+        c = triangle.c; // phase 1
+
+    lineTemp.start = a;
+    lineTemp.end = b;
+    var closestPoint1 = lineTemp.closestPointToPoint(center, true, closestPointTemp);
+    if (closestPoint1.distanceTo(center) <= radius) return true;
+    lineTemp.start = a;
+    lineTemp.end = c;
+    var closestPoint2 = lineTemp.closestPointToPoint(center, true, closestPointTemp);
+    if (closestPoint2.distanceTo(center) <= radius) return true;
+    lineTemp.start = b;
+    lineTemp.end = c;
+    var closestPoint3 = lineTemp.closestPointToPoint(center, true, closestPointTemp);
+    if (closestPoint3.distanceTo(center) <= radius) return true; // phase 2
+
+    var plane = triangle.getPlane(planeTemp);
+    var dp = Math.abs(plane.distanceToPoint(center));
+
+    if (dp <= radius) {
+      var pp = plane.projectPoint(center, projectedPointTemp);
+      var cp = triangle.containsPoint(pp);
+      if (cp) return true;
+    }
+
+    return false;
+  };
+}();
+
+exports.sphereIntersectTriangle = sphereIntersectTriangle;
+},{"three":"../node_modules/three/build/three.module.js"}],"../src/Utils/SeparatingAxisTriangle.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.SeparatingAxisTriangle = void 0;
+
+var _three = require("three");
+
+var _SeparatingAxisBounds = require("./SeparatingAxisBounds.js");
+
+var _MathUtilities = require("./MathUtilities.js");
+
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
+
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+
+function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
+
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
+
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+
+function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
+
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+
+var SeparatingAxisTriangle =
+/*#__PURE__*/
+function (_Triangle) {
+  _inherits(SeparatingAxisTriangle, _Triangle);
+
+  var _super = _createSuper(SeparatingAxisTriangle);
+
+  function SeparatingAxisTriangle() {
+    var _this;
+
+    _classCallCheck(this, SeparatingAxisTriangle);
+
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+
+    _this = _super.call.apply(_super, [this].concat(args));
+    _this.isSeparatingAxisTriangle = true;
+    _this.satAxes = new Array(4).fill().map(function () {
+      return new _three.Vector3();
+    });
+    _this.satBounds = new Array(4).fill().map(function () {
+      return new _SeparatingAxisBounds.SeparatingAxisBounds();
+    });
+    _this.points = [_this.a, _this.b, _this.c];
+    _this.sphere = new _three.Sphere();
+    _this.needsUpdate = false;
+    return _this;
+  }
+
+  _createClass(SeparatingAxisTriangle, [{
+    key: "intersectsSphere",
+    value: function intersectsSphere(sphere) {
+      return (0, _MathUtilities.sphereIntersectTriangle)(sphere, this);
+    }
+  }]);
+
+  return SeparatingAxisTriangle;
+}(_three.Triangle);
+
+exports.SeparatingAxisTriangle = SeparatingAxisTriangle;
+
+SeparatingAxisTriangle.prototype.update = function () {
+  var arr = new Array(3);
+  return function update() {
+    var a = this.a;
+    var b = this.b;
+    var c = this.c;
+    arr[0] = this.a;
+    arr[1] = this.b;
+    arr[2] = this.c;
+    var satAxes = this.satAxes;
+    var satBounds = this.satBounds;
+    var axis0 = satAxes[0];
+    var sab0 = satBounds[0];
+    this.getNormal(axis0);
+    sab0.setFromPoints(axis0, arr);
+    var axis1 = satAxes[1];
+    var sab1 = satBounds[1];
+    axis1.subVectors(a, b);
+    sab1.setFromPoints(axis1, arr);
+    var axis2 = satAxes[2];
+    var sab2 = satBounds[2];
+    axis2.subVectors(b, c);
+    sab2.setFromPoints(axis2, arr);
+    var axis3 = satAxes[3];
+    var sab3 = satBounds[3];
+    axis3.subVectors(c, a);
+    sab3.setFromPoints(axis3, arr);
+    this.sphere.setFromPoints(this.points);
+    this.needsUpdate = false;
+  };
+}();
+
+SeparatingAxisTriangle.prototype.closestPointToSegment = function () {
+  var point1 = new _three.Vector3();
+  var point2 = new _three.Vector3();
+  var edge = new _three.Line3();
+  return function distanceToSegment(segment) {
+    var target1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
+    var target2 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+
+    if (this.needsUpdate) {
+      this.update();
+    }
+
+    var start = segment.start,
+        end = segment.end;
+    var points = this.points;
+    var distSq;
+    var closestDistanceSq = Infinity; // check the triangle edges
+
+    for (var i = 0; i < 3; i++) {
+      var nexti = (i + 1) % 3;
+      edge.start.copy(points[i]);
+      edge.end.copy(points[nexti]);
+      (0, _MathUtilities.closestPointsSegmentToSegment)(edge, segment, point1, point2);
+      distSq = point1.distanceToSquared(point2);
+
+      if (distSq < closestDistanceSq) {
+        closestDistanceSq = distSq;
+        if (target1) target1.copy(point1);
+        if (target2) target2.copy(point2);
+      }
+    } // check end points
+
+
+    this.closestPointToPoint(start, point1);
+    distSq = start.distanceToSquared(point1);
+
+    if (distSq < closestDistanceSq) {
+      closestDistanceSq = distSq;
+      if (target1) target1.copy(point1);
+      if (target2) target2.copy(start);
+    }
+
+    this.closestPointToPoint(end, point1);
+    distSq = end.distanceToSquared(point1);
+
+    if (distSq < closestDistanceSq) {
+      closestDistanceSq = distSq;
+      if (target1) target1.copy(point1);
+      if (target2) target2.copy(end);
+    }
+
+    return Math.sqrt(closestDistanceSq);
+  };
+}();
+
+SeparatingAxisTriangle.prototype.intersectsTriangle = function () {
+  var saTri2 = new SeparatingAxisTriangle();
+  var arr1 = new Array(3);
+  var arr2 = new Array(3);
+  var cachedSatBounds = new _SeparatingAxisBounds.SeparatingAxisBounds();
+  var cachedSatBounds2 = new _SeparatingAxisBounds.SeparatingAxisBounds();
+  var cachedAxis = new _three.Vector3();
+  return function intersectsTriangle(other) {
+    if (this.needsUpdate) {
+      this.update();
+    }
+
+    if (!other.isSeparatingAxisTriangle) {
+      saTri2.copy(other);
+      saTri2.update();
+      other = saTri2;
+    }
+
+    var satBounds1 = this.satBounds;
+    var satAxes1 = this.satAxes;
+    arr2[0] = other.a;
+    arr2[1] = other.b;
+    arr2[2] = other.c;
+
+    for (var i = 0; i < 4; i++) {
+      var sb = satBounds1[i];
+      var sa = satAxes1[i];
+      cachedSatBounds.setFromPoints(sa, arr2);
+      if (sb.isSeparated(cachedSatBounds)) return false;
+    }
+
+    var satBounds2 = other.satBounds;
+    var satAxes2 = other.satAxes;
+    arr1[0] = this.a;
+    arr1[1] = this.b;
+    arr1[2] = this.c;
+
+    for (var _i = 0; _i < 4; _i++) {
+      var _sb = satBounds2[_i];
+      var _sa = satAxes2[_i];
+      cachedSatBounds.setFromPoints(_sa, arr1);
+      if (_sb.isSeparated(cachedSatBounds)) return false;
+    } // check crossed axes
+
+
+    for (var _i2 = 0; _i2 < 4; _i2++) {
+      var sa1 = satAxes1[_i2];
+
+      for (var i2 = 0; i2 < 4; i2++) {
+        var sa2 = satAxes2[i2];
+        cachedAxis.crossVectors(sa1, sa2);
+        cachedSatBounds.setFromPoints(cachedAxis, arr1);
+        cachedSatBounds2.setFromPoints(cachedAxis, arr2);
+        if (cachedSatBounds.isSeparated(cachedSatBounds2)) return false;
+      }
+    }
+
+    return true;
+  };
+}();
+
+SeparatingAxisTriangle.prototype.distanceToPoint = function () {
+  var target = new _three.Vector3();
+  return function distanceToPoint(point) {
+    this.closestPointToPoint(point, target);
+    return point.distanceTo(target);
+  };
+}();
+
+SeparatingAxisTriangle.prototype.distanceToTriangle = function () {
+  var point = new _three.Vector3();
+  var point2 = new _three.Vector3();
+  var cornerFields = ['a', 'b', 'c'];
+  var line1 = new _three.Line3();
+  var line2 = new _three.Line3();
+  return function distanceToTriangle(other) {
+    var target1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
+    var target2 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+
+    if (other.needsUpdate) {
+      other.update();
+    }
+
+    if (this.needsUpdate) {
+      this.update();
+    }
+
+    if (this.intersectsTriangle(other)) {
+      // TODO: This will not result in a point that lies on
+      // the intersection line of the triangles
+      if (target1 || target2) {
+        this.getMidpoint(point);
+        other.closestPointToPoint(point, point2);
+        this.closestPointToPoint(point2, point);
+        if (target1) target1.copy(point);
+        if (target2) target2.copy(point2);
+      }
+
+      return 0;
+    }
+
+    var closestDistanceSq = Infinity; // check all point distances
+
+    for (var i = 0; i < 3; i++) {
+      var dist = void 0;
+      var field = cornerFields[i];
+      var otherVec = other[field];
+      this.closestPointToPoint(otherVec, point);
+      dist = otherVec.distanceToSquared(point);
+
+      if (dist < closestDistanceSq) {
+        closestDistanceSq = dist;
+        if (target1) target1.copy(point);
+        if (target2) target2.copy(otherVec);
+      }
+
+      var thisVec = this[field];
+      other.closestPointToPoint(thisVec, point);
+      dist = thisVec.distanceToSquared(point);
+
+      if (dist < closestDistanceSq) {
+        closestDistanceSq = dist;
+        if (target1) target1.copy(thisVec);
+        if (target2) target2.copy(point);
+      }
+    }
+
+    for (var _i3 = 0; _i3 < 3; _i3++) {
+      var f11 = cornerFields[_i3];
+      var f12 = cornerFields[(_i3 + 1) % 3];
+      line1.set(this[f11], this[f12]);
+
+      for (var i2 = 0; i2 < 3; i2++) {
+        var f21 = cornerFields[i2];
+        var f22 = cornerFields[(i2 + 1) % 3];
+        line2.set(other[f21], other[f22]);
+        (0, _MathUtilities.closestPointsSegmentToSegment)(line1, line2, point, point2);
+
+        var _dist = point.distanceToSquared(point2);
+
+        if (_dist < closestDistanceSq) {
+          closestDistanceSq = _dist;
+          if (target1) target1.copy(point);
+          if (target2) target2.copy(point2);
+        }
+      }
+    }
+
+    return Math.sqrt(closestDistanceSq);
+  };
+}();
+},{"three":"../node_modules/three/build/three.module.js","./SeparatingAxisBounds.js":"../src/Utils/SeparatingAxisBounds.js","./MathUtilities.js":"../src/Utils/MathUtilities.js"}],"../src/Utils/OrientedBox.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.OrientedBox = void 0;
+
+var _three = require("three");
+
+var _SeparatingAxisBounds = require("./SeparatingAxisBounds.js");
+
+var _SeparatingAxisTriangle = require("./SeparatingAxisTriangle.js");
+
+var _MathUtilities = require("./MathUtilities.js");
+
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
+
+function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
+
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+
+function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
+
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
+
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+
+function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
+
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+
+var OrientedBox =
+/*#__PURE__*/
+function (_Box) {
+  _inherits(OrientedBox, _Box);
+
+  var _super = _createSuper(OrientedBox);
+
+  function OrientedBox() {
+    var _this;
+
+    _classCallCheck(this, OrientedBox);
+
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+
+    _this = _super.call.apply(_super, [this].concat(args));
+    _this.isOrientedBox = true;
+    _this.matrix = new _three.Matrix4();
+    _this.invMatrix = new _three.Matrix4();
+    _this.points = new Array(8).fill().map(function () {
+      return new _three.Vector3();
+    });
+    _this.satAxes = new Array(3).fill().map(function () {
+      return new _three.Vector3();
+    });
+    _this.satBounds = new Array(3).fill().map(function () {
+      return new _SeparatingAxisBounds.SeparatingAxisBounds();
+    });
+    _this.alignedSatBounds = new Array(3).fill().map(function () {
+      return new _SeparatingAxisBounds.SeparatingAxisBounds();
+    });
+    _this.sphere = new _three.Sphere();
+    return _this;
+  }
+
+  _createClass(OrientedBox, [{
+    key: "set",
+    value: function set(min, max, matrix) {
+      _get(_getPrototypeOf(OrientedBox.prototype), "set", this).call(this, min, max);
+
+      this.matrix = matrix;
+    }
+  }, {
+    key: "copy",
+    value: function copy(other) {
+      _get(_getPrototypeOf(OrientedBox.prototype), "copy", this).call(this, other);
+
+      this.matrix.copy(other.matrix);
+    }
+  }]);
+
+  return OrientedBox;
+}(_three.Box3);
+
+exports.OrientedBox = OrientedBox;
+
+OrientedBox.prototype.update = function () {
+  return function update() {
+    var matrix = this.matrix;
+    var min = this.min;
+    var max = this.max;
+    var points = this.points;
+
+    for (var x = 0; x <= 1; x++) {
+      for (var y = 0; y <= 1; y++) {
+        for (var z = 0; z <= 1; z++) {
+          var i = (1 << 0) * x | (1 << 1) * y | (1 << 2) * z;
+          var v = points[i];
+          v.x = x ? max.x : min.x;
+          v.y = y ? max.y : min.y;
+          v.z = z ? max.z : min.z;
+          v.applyMatrix4(matrix);
+        }
+      }
+    }
+
+    this.sphere.setFromPoints(this.points);
+    var satBounds = this.satBounds;
+    var satAxes = this.satAxes;
+    var minVec = points[0];
+
+    for (var _i = 0; _i < 3; _i++) {
+      var axis = satAxes[_i];
+      var sb = satBounds[_i];
+      var index = 1 << _i;
+      var pi = points[index];
+      axis.subVectors(minVec, pi);
+      sb.setFromPoints(axis, points);
+    }
+
+    var alignedSatBounds = this.alignedSatBounds;
+    alignedSatBounds[0].setFromPointsField(points, 'x');
+    alignedSatBounds[1].setFromPointsField(points, 'y');
+    alignedSatBounds[2].setFromPointsField(points, 'z');
+    this.invMatrix.copy(this.matrix).invert();
+  };
+}();
+
+OrientedBox.prototype.intersectsBox = function () {
+  var aabbBounds = new _SeparatingAxisBounds.SeparatingAxisBounds();
+  return function intersectsBox(box) {
+    if (!box.intersectsSphere(this.sphere)) return false;
+    var min = box.min;
+    var max = box.max;
+    var satBounds = this.satBounds;
+    var satAxes = this.satAxes;
+    var alignedSatBounds = this.alignedSatBounds;
+    aabbBounds.min = min.x;
+    aabbBounds.max = max.x;
+    if (alignedSatBounds[0].isSeparated(aabbBounds)) return false;
+    aabbBounds.min = min.y;
+    aabbBounds.max = max.y;
+    if (alignedSatBounds[1].isSeparated(aabbBounds)) return false;
+    aabbBounds.min = min.z;
+    aabbBounds.max = max.z;
+    if (alignedSatBounds[2].isSeparated(aabbBounds)) return false;
+
+    for (var i = 0; i < 3; i++) {
+      var axis = satAxes[i];
+      var sb = satBounds[i];
+      aabbBounds.setFromBox(axis, box);
+      if (sb.isSeparated(aabbBounds)) return false;
+    }
+
+    return true;
+  };
+}();
+
+OrientedBox.prototype.intersectsTriangle = function () {
+  var saTri = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
+  var pointsArr = new Array(3);
+  var cachedSatBounds = new _SeparatingAxisBounds.SeparatingAxisBounds();
+  var cachedSatBounds2 = new _SeparatingAxisBounds.SeparatingAxisBounds();
+  var cachedAxis = new _three.Vector3();
+  return function intersectsTriangle(triangle) {
+    if (!triangle.isSeparatingAxisTriangle) {
+      saTri.copy(triangle);
+      saTri.update();
+      triangle = saTri;
+    } else if (triangle.needsUpdate) {
+      triangle.update();
+    }
+
+    var satBounds = this.satBounds;
+    var satAxes = this.satAxes;
+    pointsArr[0] = triangle.a;
+    pointsArr[1] = triangle.b;
+    pointsArr[2] = triangle.c;
+
+    for (var i = 0; i < 3; i++) {
+      var sb = satBounds[i];
+      var sa = satAxes[i];
+      cachedSatBounds.setFromPoints(sa, pointsArr);
+      if (sb.isSeparated(cachedSatBounds)) return false;
+    }
+
+    var triSatBounds = triangle.satBounds;
+    var triSatAxes = triangle.satAxes;
+    var points = this.points;
+
+    for (var _i2 = 0; _i2 < 3; _i2++) {
+      var _sb = triSatBounds[_i2];
+      var _sa = triSatAxes[_i2];
+      cachedSatBounds.setFromPoints(_sa, points);
+      if (_sb.isSeparated(cachedSatBounds)) return false;
+    } // check crossed axes
+
+
+    for (var _i3 = 0; _i3 < 3; _i3++) {
+      var sa1 = satAxes[_i3];
+
+      for (var i2 = 0; i2 < 4; i2++) {
+        var sa2 = triSatAxes[i2];
+        cachedAxis.crossVectors(sa1, sa2);
+        cachedSatBounds.setFromPoints(cachedAxis, pointsArr);
+        cachedSatBounds2.setFromPoints(cachedAxis, points);
+        if (cachedSatBounds.isSeparated(cachedSatBounds2)) return false;
+      }
+    }
+
+    return true;
+  };
+}();
+
+OrientedBox.prototype.closestPointToPoint = function () {
+  return function closestPointToPoint(point, target1) {
+    target1.copy(point).applyMatrix4(this.invMatrix).clamp(this.min, this.max).applyMatrix4(this.matrix);
+    return target1;
+  };
+}();
+
+OrientedBox.prototype.distanceToPoint = function () {
+  var target = new _three.Vector3();
+  return function distanceToPoint(point) {
+    this.closestPointToPoint(point, target);
+    return point.distanceTo(target);
+  };
+}();
+
+OrientedBox.prototype.distanceToBox = function () {
+  var xyzFields = ['x', 'y', 'z'];
+  var segments1 = new Array(12).fill().map(function () {
+    return new _three.Line3();
+  });
+  var segments2 = new Array(12).fill().map(function () {
+    return new _three.Line3();
+  });
+  var point1 = new _three.Vector3();
+  var point2 = new _three.Vector3();
+  return function distanceToBox(box) {
+    var threshold = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
+    var target1 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+    var target2 = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+
+    if (this.intersectsBox(box)) {
+      if (target1 || target2) {
+        box.getCenter(point2);
+        this.closestPointToPoint(point2, point1);
+        box.closestPointToPoint(point1, point2);
+        if (target1) target1.copy(point1);
+        if (target2) target2.copy(point2);
+      }
+
+      return 0;
+    }
+
+    var threshold2 = threshold * threshold;
+    var min = box.min;
+    var max = box.max;
+    var points = this.points; // iterate over every edge and compare distances
+
+    var closestDistanceSq = Infinity; // check over all these points
+
+    for (var i = 0; i < 8; i++) {
+      var p = points[i];
+      point2.copy(p).clamp(min, max);
+      var dist = p.distanceToSquared(point2);
+
+      if (dist < closestDistanceSq) {
+        closestDistanceSq = dist;
+        if (target1) target1.copy(p);
+        if (target2) target2.copy(point2);
+        if (dist < threshold2) return Math.sqrt(dist);
+      }
+    } // generate and check all line segment distances
+
+
+    var count = 0;
+
+    for (var _i4 = 0; _i4 < 3; _i4++) {
+      for (var i1 = 0; i1 <= 1; i1++) {
+        for (var i2 = 0; i2 <= 1; i2++) {
+          var nextIndex = (_i4 + 1) % 3;
+          var nextIndex2 = (_i4 + 2) % 3; // get obb line segments
+
+          var index = i1 << nextIndex | i2 << nextIndex2;
+          var index2 = 1 << _i4 | i1 << nextIndex | i2 << nextIndex2;
+          var p1 = points[index];
+          var p2 = points[index2];
+          var line1 = segments1[count];
+          line1.set(p1, p2); // get aabb line segments
+
+          var f1 = xyzFields[_i4];
+          var f2 = xyzFields[nextIndex];
+          var f3 = xyzFields[nextIndex2];
+          var line2 = segments2[count];
+          var start = line2.start;
+          var end = line2.end;
+          start[f1] = min[f1];
+          start[f2] = i1 ? min[f2] : max[f2];
+          start[f3] = i2 ? min[f3] : max[f2];
+          end[f1] = max[f1];
+          end[f2] = i1 ? min[f2] : max[f2];
+          end[f3] = i2 ? min[f3] : max[f2];
+          count++;
+        }
+      }
+    } // check all the other boxes point
+
+
+    for (var x = 0; x <= 1; x++) {
+      for (var y = 0; y <= 1; y++) {
+        for (var z = 0; z <= 1; z++) {
+          point2.x = x ? max.x : min.x;
+          point2.y = y ? max.y : min.y;
+          point2.z = z ? max.z : min.z;
+          this.closestPointToPoint(point2, point1);
+
+          var _dist = point2.distanceToSquared(point1);
+
+          if (_dist < closestDistanceSq) {
+            closestDistanceSq = _dist;
+            if (target1) target1.copy(point1);
+            if (target2) target2.copy(point2);
+            if (_dist < threshold2) return Math.sqrt(_dist);
+          }
+        }
+      }
+    }
+
+    for (var _i5 = 0; _i5 < 12; _i5++) {
+      var l1 = segments1[_i5];
+
+      for (var _i6 = 0; _i6 < 12; _i6++) {
+        var l2 = segments2[_i6];
+        (0, _MathUtilities.closestPointsSegmentToSegment)(l1, l2, point1, point2);
+
+        var _dist2 = point1.distanceToSquared(point2);
+
+        if (_dist2 < closestDistanceSq) {
+          closestDistanceSq = _dist2;
+          if (target1) target1.copy(point1);
+          if (target2) target2.copy(point2);
+          if (_dist2 < threshold2) return Math.sqrt(_dist2);
+        }
+      }
+    }
+
+    return Math.sqrt(closestDistanceSq);
+  };
+}();
+},{"three":"../node_modules/three/build/three.module.js","./SeparatingAxisBounds.js":"../src/Utils/SeparatingAxisBounds.js","./SeparatingAxisTriangle.js":"../src/Utils/SeparatingAxisTriangle.js","./MathUtilities.js":"../src/Utils/MathUtilities.js"}],"../src/Utils/TriangleUtils.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.setTriangle = setTriangle;
+
+// sets the vertices of triangle `tri` with the 3 vertices after i
+function setTriangle(tri, i, index, pos) {
+  var ta = tri.a;
+  var tb = tri.b;
+  var tc = tri.c;
+  var i3 = index.getX(i);
+  ta.x = pos.getX(i3);
+  ta.y = pos.getY(i3);
+  ta.z = pos.getZ(i3);
+  i3 = index.getX(i + 1);
+  tb.x = pos.getX(i3);
+  tb.y = pos.getY(i3);
+  tb.z = pos.getZ(i3);
+  i3 = index.getX(i + 2);
+  tc.x = pos.getX(i3);
+  tc.y = pos.getY(i3);
+  tc.z = pos.getZ(i3);
+}
+},{}],"../src/Utils/ThreeIntersectionUtilities.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.intersectTri = intersectTri;
+
+var _three = require("three");
+
+// Ripped and modified From THREE.js Mesh raycast
+// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115
+var vA = new _three.Vector3();
+var vB = new _three.Vector3();
+var vC = new _three.Vector3();
+var uvA = new _three.Vector2();
+var uvB = new _three.Vector2();
+var uvC = new _three.Vector2();
+var intersectionPoint = new _three.Vector3();
+var intersectionPointWorld = new _three.Vector3();
+
+function checkIntersection(object, material, raycaster, ray, pA, pB, pC, point) {
+  var intersect;
+
+  if (material.side === _three.BackSide) {
+    intersect = ray.intersectTriangle(pC, pB, pA, true, point);
+  } else {
+    intersect = ray.intersectTriangle(pA, pB, pC, material.side !== _three.DoubleSide, point);
+  }
+
+  if (intersect === null) return null;
+  intersectionPointWorld.copy(point);
+  intersectionPointWorld.applyMatrix4(object.matrixWorld);
+  var distance = raycaster.ray.origin.distanceTo(intersectionPointWorld);
+  if (distance < raycaster.near || distance > raycaster.far) return null;
+  return {
+    distance: distance,
+    point: intersectionPointWorld.clone(),
+    object: object
+  };
+}
+
+function checkBufferGeometryIntersection(object, raycaster, ray, position, uv, a, b, c) {
+  vA.fromBufferAttribute(position, a);
+  vB.fromBufferAttribute(position, b);
+  vC.fromBufferAttribute(position, c);
+  var intersection = checkIntersection(object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint);
+
+  if (intersection) {
+    if (uv) {
+      uvA.fromBufferAttribute(uv, a);
+      uvB.fromBufferAttribute(uv, b);
+      uvC.fromBufferAttribute(uv, c);
+      intersection.uv = _three.Triangle.getUV(intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new _three.Vector2());
+    }
+
+    var face = {
+      a: a,
+      b: b,
+      c: c,
+      normal: new _three.Vector3(),
+      materialIndex: 0
+    };
+
+    _three.Triangle.getNormal(vA, vB, vC, face.normal);
+
+    intersection.face = face;
+    intersection.faceIndex = a;
+  }
+
+  return intersection;
+} // https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258
+
+
+function intersectTri(mesh, geo, raycaster, ray, tri, intersections) {
+  var triOffset = tri * 3;
+  var a = geo.index.getX(triOffset);
+  var b = geo.index.getX(triOffset + 1);
+  var c = geo.index.getX(triOffset + 2);
+  var intersection = checkBufferGeometryIntersection(mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c);
+
+  if (intersection) {
+    intersection.faceIndex = tri;
+    if (intersections) intersections.push(intersection);
+    return intersection;
+  }
+
+  return null;
+}
+},{"three":"../node_modules/three/build/three.module.js"}],"../src/Utils/RayIntersectTriUtlities.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.intersectTris = intersectTris;
+exports.intersectClosestTri = intersectClosestTri;
+
+var _ThreeIntersectionUtilities = require("./ThreeIntersectionUtilities.js");
+
+function intersectTris(mesh, geo, raycaster, ray, offset, count, intersections) {
+  for (var i = offset, end = offset + count; i < end; i++) {
+    (0, _ThreeIntersectionUtilities.intersectTri)(mesh, geo, raycaster, ray, i, intersections);
+  }
+}
+
+;
+
+function intersectClosestTri(mesh, geo, raycaster, ray, offset, count) {
+  var dist = Infinity;
+  var res = null;
+
+  for (var i = offset, end = offset + count; i < end; i++) {
+    var intersection = (0, _ThreeIntersectionUtilities.intersectTri)(mesh, geo, raycaster, ray, i);
+
+    if (intersection && intersection.distance < dist) {
+      res = intersection;
+      dist = intersection.distance;
+    }
+  }
+
+  return res;
+}
+
+;
+},{"./ThreeIntersectionUtilities.js":"../src/Utils/ThreeIntersectionUtilities.js"}],"../src/castFunctions.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.raycast = raycast;
+exports.raycastFirst = raycastFirst;
+exports.setBuffer = setBuffer;
+exports.clearBuffer = clearBuffer;
+exports.intersectsGeometry = exports.shapecast = void 0;
+
+var _three = require("three");
+
+var _RayIntersectTriUtlities = require("./Utils/RayIntersectTriUtlities.js");
+
+var _OrientedBox = require("./Utils/OrientedBox.js");
+
+var _TriangleUtils = require("./Utils/TriangleUtils.js");
+
+var _SeparatingAxisTriangle = require("./Utils/SeparatingAxisTriangle.js");
+
+var _Constants = require("./Constants.js");
+
+/* Generated from "castFunctions.template.js". Do not edit. */
+// For speed and readability this script is processed to replace the macro-like calls
+// with inline buffer reads. See generate-cast-functions.js.
+var boundingBox = new _three.Box3();
+var boxIntersection = new _three.Vector3();
+var xyzFields = ['x', 'y', 'z'];
+
+function raycast(nodeIndex32, mesh, raycaster, ray, intersects) {
+  var nodeIndex16 = nodeIndex32 * 2,
+      float32Array = _float32Array,
+      uint16Array = _uint16Array,
+      uint32Array = _uint32Array;
+  var isLeaf = uint16Array[nodeIndex16 + 15] === 0xFFFF;
+
+  if (isLeaf) {
+    var offset = uint32Array[nodeIndex32 + 6];
+    var count = uint16Array[nodeIndex16 + 14];
+    (0, _RayIntersectTriUtlities.intersectTris)(mesh, mesh.geometry, raycaster, ray, offset, count, intersects);
+  } else {
+    var leftIndex = nodeIndex32 + 8;
+
+    if (intersectRay(leftIndex, float32Array, ray, boxIntersection)) {
+      raycast(leftIndex, mesh, raycaster, ray, intersects);
+    }
+
+    var rightIndex = uint32Array[nodeIndex32 + 6];
+
+    if (intersectRay(rightIndex, float32Array, ray, boxIntersection)) {
+      raycast(rightIndex, mesh, raycaster, ray, intersects);
+    }
+  }
+}
+
+function raycastFirst(nodeIndex32, mesh, raycaster, ray) {
+  var nodeIndex16 = nodeIndex32 * 2,
+      float32Array = _float32Array,
+      uint16Array = _uint16Array,
+      uint32Array = _uint32Array;
+  var isLeaf = uint16Array[nodeIndex16 + 15] === 0xFFFF;
+
+  if (isLeaf) {
+    var offset = uint32Array[nodeIndex32 + 6];
+    var count = uint16Array[nodeIndex16 + 14];
+    return (0, _RayIntersectTriUtlities.intersectClosestTri)(mesh, mesh.geometry, raycaster, ray, offset, count);
+  } else {
+    // consider the position of the split plane with respect to the oncoming ray; whichever direction
+    // the ray is coming from, look for an intersection among that side of the tree first
+    var splitAxis = uint32Array[nodeIndex32 + 7];
+    var xyzAxis = xyzFields[splitAxis];
+    var rayDir = ray.direction[xyzAxis];
+    var leftToRight = rayDir >= 0; // c1 is the child to check first
+
+    var c1, c2;
+
+    if (leftToRight) {
+      c1 = nodeIndex32 + 8;
+      c2 = uint32Array[nodeIndex32 + 6];
+    } else {
+      c1 = uint32Array[nodeIndex32 + 6];
+      c2 = nodeIndex32 + 8;
+    }
+
+    var c1Intersection = intersectRay(c1, float32Array, ray, boxIntersection);
+    var c1Result = c1Intersection ? raycastFirst(c1, mesh, raycaster, ray) : null; // if we got an intersection in the first node and it's closer than the second node's bounding
+    // box, we don't need to consider the second node because it couldn't possibly be a better result
+
+    if (c1Result) {
+      // check if the point is within the second bounds
+      var point = c1Result.point[xyzAxis];
+      var isOutside = leftToRight ? point <= float32Array[c2 + splitAxis] : // min bounding data
+      point >= float32Array[c2 + splitAxis + 3]; // max bounding data
+
+      if (isOutside) {
+        return c1Result;
+      }
+    } // either there was no intersection in the first node, or there could still be a closer
+    // intersection in the second, so check the second node and then take the better of the two
+
+
+    var c2Intersection = intersectRay(c2, float32Array, ray, boxIntersection);
+    var c2Result = c2Intersection ? raycastFirst(c2, mesh, raycaster, ray) : null;
+
+    if (c1Result && c2Result) {
+      return c1Result.distance <= c2Result.distance ? c1Result : c2Result;
+    } else {
+      return c1Result || c2Result || null;
+    }
+  }
+}
+
+var shapecast = function () {
+  var _triangle = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
+
+  var _cachedBox1 = new _three.Box3();
+
+  var _cachedBox2 = new _three.Box3();
+
+  function iterateOverTriangles(offset, count, geometry, intersectsTriangleFunc, contained, depth, triangle) {
+    var index = geometry.index;
+    var pos = geometry.attributes.position;
+
+    for (var i = offset * 3, l = (count + offset) * 3; i < l; i += 3) {
+      (0, _TriangleUtils.setTriangle)(triangle, i, index, pos);
+      triangle.needsUpdate = true;
+
+      if (intersectsTriangleFunc(triangle, i, i + 1, i + 2, contained, depth)) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  return function shapecast(nodeIndex32, mesh, intersectsBoundsFunc) {
+    var intersectsTriangleFunc = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+    var nodeScoreFunc = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : null;
+    var depth = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
+    var triangle = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : _triangle;
+    var cachedBox1 = arguments.length > 7 && arguments[7] !== undefined ? arguments[7] : _cachedBox1;
+    var cachedBox2 = arguments.length > 8 && arguments[8] !== undefined ? arguments[8] : _cachedBox2;
+
+    // Define these inside the function so it has access to the local variables needed
+    // when converting to the buffer equivalents
+    function getLeftOffset(nodeIndex32) {
+      var nodeIndex16 = nodeIndex32 * 2,
+          uint16Array = _uint16Array,
+          uint32Array = _uint32Array; // traverse until we find a leaf
+
+      while (!(uint16Array[nodeIndex16 + 15] === 0xFFFF)) {
+        nodeIndex32 = nodeIndex32 + 8;
+        nodeIndex16 = nodeIndex32 * 2;
+      }
+
+      return uint32Array[nodeIndex32 + 6];
+    }
+
+    function getRightEndOffset(nodeIndex32) {
+      var nodeIndex16 = nodeIndex32 * 2,
+          uint16Array = _uint16Array,
+          uint32Array = _uint32Array; // traverse until we find a leaf
+
+      while (!(uint16Array[nodeIndex16 + 15] === 0xFFFF)) {
+        // adjust offset to point to the right node
+        nodeIndex32 = uint32Array[nodeIndex32 + 6];
+        nodeIndex16 = nodeIndex32 * 2;
+      } // return the end offset of the triangle range
+
+
+      return uint32Array[nodeIndex32 + 6] + uint16Array[nodeIndex16 + 14];
+    }
+
+    var nodeIndex16 = nodeIndex32 * 2,
+        float32Array = _float32Array,
+        uint16Array = _uint16Array,
+        uint32Array = _uint32Array;
+    var isLeaf = uint16Array[nodeIndex16 + 15] === 0xFFFF;
+
+    if (isLeaf && intersectsTriangleFunc) {
+      var geometry = mesh.geometry;
+      var offset = uint32Array[nodeIndex32 + 6];
+      var count = uint16Array[nodeIndex16 + 14];
+      return iterateOverTriangles(offset, count, geometry, intersectsTriangleFunc, false, depth, triangle);
+    } else {
+      var left = nodeIndex32 + 8;
+      var right = uint32Array[nodeIndex32 + 6];
+      var c1 = left;
+      var c2 = right;
+      var score1, score2;
+      var box1, box2;
+
+      if (nodeScoreFunc) {
+        box1 = cachedBox1;
+        box2 = cachedBox2; // bounding data is not offset
+
+        arrayToBox(c1, float32Array, box1);
+        arrayToBox(c2, float32Array, box2);
+        score1 = nodeScoreFunc(box1);
+        score2 = nodeScoreFunc(box2);
+
+        if (score2 < score1) {
+          c1 = right;
+          c2 = left;
+          var temp = score1;
+          score1 = score2;
+          score2 = temp;
+          box1 = box2; // box2 is always set before use below
+        }
+      } // Check box 1 intersection
+
+
+      if (!box1) {
+        box1 = cachedBox1;
+        arrayToBox(c1, float32Array, box1);
+      }
+
+      var isC1Leaf = uint16Array[c1 + 15] === 0xFFFF;
+      var c1Intersection = intersectsBoundsFunc(box1, isC1Leaf, score1, depth + 1);
+      var c1StopTraversal;
+
+      if (c1Intersection === _Constants.CONTAINED) {
+        var _geometry = mesh.geometry;
+
+        var _offset = getLeftOffset(c1);
+
+        var end = getRightEndOffset(c1);
+
+        var _count = end - _offset;
+
+        c1StopTraversal = iterateOverTriangles(_offset, _count, _geometry, intersectsTriangleFunc, true, depth + 1, triangle);
+      } else {
+        c1StopTraversal = c1Intersection && shapecast(c1, mesh, intersectsBoundsFunc, intersectsTriangleFunc, nodeScoreFunc, depth + 1, triangle, cachedBox1, cachedBox2);
+      }
+
+      if (c1StopTraversal) return true; // Check box 2 intersection
+      // cached box2 will have been overwritten by previous traversal
+
+      box2 = cachedBox2;
+      arrayToBox(c2, float32Array, box2);
+      var isC2Leaf = uint16Array[c2 + 15] === 0xFFFF;
+      var c2Intersection = intersectsBoundsFunc(box2, isC2Leaf, score2, depth + 1);
+      var c2StopTraversal;
+
+      if (c2Intersection === _Constants.CONTAINED) {
+        var _geometry2 = mesh.geometry;
+
+        var _offset2 = getLeftOffset(c2);
+
+        var _end = getRightEndOffset(c2);
+
+        var _count2 = _end - _offset2;
+
+        c2StopTraversal = iterateOverTriangles(_offset2, _count2, _geometry2, intersectsTriangleFunc, true, depth + 1, triangle);
+      } else {
+        c2StopTraversal = c2Intersection && shapecast(c2, mesh, intersectsBoundsFunc, intersectsTriangleFunc, nodeScoreFunc, depth + 1, triangle, cachedBox1, cachedBox2);
+      }
+
+      if (c2StopTraversal) return true;
+      return false;
+    }
+  };
+}();
+
+exports.shapecast = shapecast;
+
+var intersectsGeometry = function () {
+  var triangle = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
+  var triangle2 = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
+  var cachedMesh = new _three.Mesh();
+  var invertedMat = new _three.Matrix4();
+  var obb = new _OrientedBox.OrientedBox();
+  var obb2 = new _OrientedBox.OrientedBox();
+  return function intersectsGeometry(nodeIndex32, mesh, geometry, geometryToBvh) {
+    var cachedObb = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : null;
+    var nodeIndex16 = nodeIndex32 * 2,
+        float32Array = _float32Array,
+        uint16Array = _uint16Array,
+        uint32Array = _uint32Array;
+
+    if (cachedObb === null) {
+      if (!geometry.boundingBox) {
+        geometry.computeBoundingBox();
+      }
+
+      obb.set(geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh);
+      obb.update();
+      cachedObb = obb;
+    }
+
+    var isLeaf = uint16Array[nodeIndex16 + 15] === 0xFFFF;
+
+    if (isLeaf) {
+      var thisGeometry = mesh.geometry;
+      var thisIndex = thisGeometry.index;
+      var thisPos = thisGeometry.attributes.position;
+      var index = geometry.index;
+      var pos = geometry.attributes.position;
+      var offset = uint32Array[nodeIndex32 + 6];
+      var count = uint16Array[nodeIndex16 + 14]; // get the inverse of the geometry matrix so we can transform our triangles into the
+      // geometry space we're trying to test. We assume there are fewer triangles being checked
+      // here.
+
+      invertedMat.copy(geometryToBvh).invert();
+
+      if (geometry.boundsTree) {
+        arrayToBox(nodeIndex32, float32Array, obb2);
+        obb2.matrix.copy(invertedMat);
+        obb2.update();
+        cachedMesh.geometry = geometry;
+        var res = geometry.boundsTree.shapecast(cachedMesh, function (box) {
+          return obb2.intersectsBox(box);
+        }, function (tri) {
+          tri.a.applyMatrix4(geometryToBvh);
+          tri.b.applyMatrix4(geometryToBvh);
+          tri.c.applyMatrix4(geometryToBvh);
+          tri.update();
+
+          for (var i = offset * 3, l = (count + offset) * 3; i < l; i += 3) {
+            // this triangle needs to be transformed into the current BVH coordinate frame
+            (0, _TriangleUtils.setTriangle)(triangle2, i, thisIndex, thisPos);
+            triangle2.update();
+
+            if (tri.intersectsTriangle(triangle2)) {
+              return true;
+            }
+          }
+
+          return false;
+        });
+        cachedMesh.geometry = null;
+        return res;
+      } else {
+        for (var i = offset * 3, l = count + offset * 3; i < l; i += 3) {
+          // this triangle needs to be transformed into the current BVH coordinate frame
+          (0, _TriangleUtils.setTriangle)(triangle, i, thisIndex, thisPos);
+          triangle.a.applyMatrix4(invertedMat);
+          triangle.b.applyMatrix4(invertedMat);
+          triangle.c.applyMatrix4(invertedMat);
+          triangle.update();
+
+          for (var i2 = 0, l2 = index.count; i2 < l2; i2 += 3) {
+            (0, _TriangleUtils.setTriangle)(triangle2, i2, index, pos);
+            triangle2.update();
+
+            if (triangle.intersectsTriangle(triangle2)) {
+              return true;
+            }
+          }
+        }
+      }
+    } else {
+      var left = nodeIndex32 + 8;
+      var right = uint32Array[nodeIndex32 + 6];
+      arrayToBox(left, float32Array, boundingBox);
+      var leftIntersection = cachedObb.intersectsBox(boundingBox) && intersectsGeometry(left, mesh, geometry, geometryToBvh, cachedObb);
+      if (leftIntersection) return true;
+      arrayToBox(right, float32Array, boundingBox);
+      var rightIntersection = cachedObb.intersectsBox(boundingBox) && intersectsGeometry(right, mesh, geometry, geometryToBvh, cachedObb);
+      if (rightIntersection) return true;
+      return false;
+    }
+  };
+}();
+
+exports.intersectsGeometry = intersectsGeometry;
+
+function intersectRay(nodeIndex32, array, ray, target) {
+  arrayToBox(nodeIndex32, array, boundingBox);
+  return ray.intersectBox(boundingBox, target);
+}
+
+var bufferStack = [];
+
+var _prevBuffer;
+
+var _float32Array;
+
+var _uint16Array;
+
+var _uint32Array;
+
+function setBuffer(buffer) {
+  if (_prevBuffer) {
+    bufferStack.push(_prevBuffer);
+  }
+
+  _prevBuffer = buffer;
+  _float32Array = new Float32Array(buffer);
+  _uint16Array = new Uint16Array(buffer);
+  _uint32Array = new Uint32Array(buffer);
+}
+
+function clearBuffer() {
+  _prevBuffer = null;
+  _float32Array = null;
+  _uint16Array = null;
+  _uint32Array = null;
+
+  if (bufferStack.length) {
+    setBuffer(bufferStack.pop());
+  }
+}
+
+function arrayToBox(nodeIndex32, array, target) {
+  target.min.x = array[nodeIndex32];
+  target.min.y = array[nodeIndex32 + 1];
+  target.min.z = array[nodeIndex32 + 2];
+  target.max.x = array[nodeIndex32 + 3];
+  target.max.y = array[nodeIndex32 + 4];
+  target.max.z = array[nodeIndex32 + 5];
+}
+},{"three":"../node_modules/three/build/three.module.js","./Utils/RayIntersectTriUtlities.js":"../src/Utils/RayIntersectTriUtlities.js","./Utils/OrientedBox.js":"../src/Utils/OrientedBox.js","./Utils/TriangleUtils.js":"../src/Utils/TriangleUtils.js","./Utils/SeparatingAxisTriangle.js":"../src/Utils/SeparatingAxisTriangle.js","./Constants.js":"../src/Constants.js"}],"../src/MeshBVH.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _three = require("three");
+
+var _Constants = require("./Constants.js");
+
+var _buildFunctions = require("./buildFunctions.js");
+
+var _OrientedBox = require("./Utils/OrientedBox.js");
+
+var _SeparatingAxisTriangle = require("./Utils/SeparatingAxisTriangle.js");
+
+var _TriangleUtils = require("./Utils/TriangleUtils.js");
+
+var _castFunctions = require("./castFunctions.js");
+
+function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
+
+function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
+
+function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var SKIP_GENERATION = Symbol('skip tree generation');
+var obb = new _OrientedBox.OrientedBox();
+var temp = new _three.Vector3();
+var tri2 = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
+var temp1 = new _three.Vector3();
+var temp2 = new _three.Vector3();
+
+var MeshBVH =
+/*#__PURE__*/
+function () {
+  _createClass(MeshBVH, null, [{
+    key: "serialize",
+    value: function serialize(bvh, geometry) {
+      var copyIndexBuffer = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
+      var rootData = bvh._roots;
+      var indexAttribute = geometry.getIndex();
+      var result = {
+        roots: rootData,
+        index: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array
+      };
+      return result;
+    }
+  }, {
+    key: "deserialize",
+    value: function deserialize(data, geometry) {
+      var setIndex = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
+      var index = data.index,
+          roots = data.roots;
+      var bvh = new MeshBVH(geometry, _defineProperty({}, SKIP_GENERATION, true));
+      bvh._roots = roots;
+
+      if (setIndex) {
+        var indexAttribute = geometry.getIndex();
+
+        if (indexAttribute === null) {
+          var newIndex = new _three.BufferAttribute(data.index, 1, false);
+          geometry.setIndex(newIndex);
+        } else if (indexAttribute.array !== index) {
+          indexAttribute.array.set(index);
+          indexAttribute.needsUpdate = true;
+        }
+      }
+
+      return bvh;
+    }
+  }]);
+
+  function MeshBVH(geo) {
+    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+    _classCallCheck(this, MeshBVH);
+
+    if (!geo.isBufferGeometry) {
+      throw new Error('MeshBVH: Only BufferGeometries are supported.');
+    } else if (geo.attributes.position.isInterleavedBufferAttribute) {
+      throw new Error('MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.');
+    } else if (geo.index && geo.index.isInterleavedBufferAttribute) {
+      throw new Error('MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.');
+    } // default options
+
+
+    options = Object.assign(_defineProperty({
+      strategy: _Constants.CENTER,
+      maxDepth: 40,
+      maxLeafTris: 10,
+      verbose: true
+    }, SKIP_GENERATION, false), options);
+    options.strategy = Math.max(0, Math.min(2, options.strategy));
+    this._roots = null;
+
+    if (!options[SKIP_GENERATION]) {
+      this._roots = (0, _buildFunctions.buildPackedTree)(geo, options);
+    }
+  }
+
+  _createClass(MeshBVH, [{
+    key: "refit",
+    value: function refit(geometry) {
+      var indexArr = geometry.index.array;
+      var posArr = geometry.attributes.position.array;
+      var buffer, uint32Array, uint16Array, float32Array;
+      var roots = this._roots;
+
+      for (var i = 0, l = roots.length; i < l; i++) {
+        buffer = roots[i];
+        uint32Array = new Uint32Array(buffer);
+        uint16Array = new Uint16Array(buffer);
+        float32Array = new Float32Array(buffer);
+
+        _traverse(0);
+      }
+
+      function _traverse(node32Index) {
+        var node16Index = node32Index * 2;
+        var isLeaf = uint16Array[node16Index + 15] === _buildFunctions.IS_LEAFNODE_FLAG;
+
+        if (isLeaf) {
+          var offset = uint32Array[node32Index + 6];
+          var count = uint16Array[node16Index + 14];
+          var minx = Infinity;
+          var miny = Infinity;
+          var minz = Infinity;
+          var maxx = -Infinity;
+          var maxy = -Infinity;
+          var maxz = -Infinity;
+
+          for (var _i = 3 * offset, _l = 3 * (offset + count); _i < _l; _i++) {
+            var index3 = indexArr[_i] * 3;
+            var x = posArr[index3 + 0];
+            var y = posArr[index3 + 1];
+            var z = posArr[index3 + 2];
+            if (x < minx) minx = x;
+            if (x > maxx) maxx = x;
+            if (y < miny) miny = y;
+            if (y > maxy) maxy = y;
+            if (z < minz) minz = z;
+            if (z > maxz) maxz = z;
+          }
+
+          if (float32Array[node32Index + 0] !== minx || float32Array[node32Index + 1] !== miny || float32Array[node32Index + 2] !== minz || float32Array[node32Index + 3] !== maxx || float32Array[node32Index + 4] !== maxy || float32Array[node32Index + 5] !== maxz) {
+            float32Array[node32Index + 0] = minx;
+            float32Array[node32Index + 1] = miny;
+            float32Array[node32Index + 2] = minz;
+            float32Array[node32Index + 3] = maxx;
+            float32Array[node32Index + 4] = maxy;
+            float32Array[node32Index + 5] = maxz;
+            return true;
+          } else {
+            return false;
+          }
+        } else {
+          var left = node32Index + 8;
+          var right = uint32Array[node32Index + 6];
+
+          var leftChange = _traverse(left);
+
+          var rightChange = _traverse(right);
+
+          var didChange = leftChange || rightChange;
+
+          if (didChange) {
+            for (var _i2 = 0; _i2 < 3; _i2++) {
+              var lefti = left + _i2;
+              var righti = right + _i2;
+              var minLeftValue = float32Array[lefti];
+              var maxLeftValue = float32Array[lefti + 3];
+              var minRightValue = float32Array[righti];
+              var maxRightValue = float32Array[righti + 3];
+              float32Array[node32Index + _i2] = minLeftValue < minRightValue ? minLeftValue : minRightValue;
+              float32Array[node32Index + _i2 + 3] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;
+            }
+          }
+
+          return didChange;
+        }
+      }
+    }
+  }, {
+    key: "traverse",
+    value: function traverse(callback) {
+      var rootIndex = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
+      var buffer = this._roots[rootIndex];
+      var uint32Array = new Uint32Array(buffer);
+      var uint16Array = new Uint16Array(buffer);
+
+      _traverse(0);
+
+      function _traverse(node32Index) {
+        var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
+        var node16Index = node32Index * 2;
+        var isLeaf = uint16Array[node16Index + 15] === _buildFunctions.IS_LEAFNODE_FLAG;
+
+        if (isLeaf) {
+          var offset = uint32Array[node32Index + 6];
+          var count = uint16Array[node16Index + 14];
+          callback(depth, isLeaf, new Float32Array(buffer, node32Index * 4, 6), offset, count);
+        } else {
+          var left = node32Index + _buildFunctions.BYTES_PER_NODE / 4;
+          var right = uint32Array[node32Index + 6];
+          var splitAxis = uint32Array[node32Index + 7];
+          var stopTraversal = callback(depth, isLeaf, new Float32Array(buffer, node32Index * 4, 6), splitAxis);
+
+          if (!stopTraversal) {
+            _traverse(left, depth + 1);
+
+            _traverse(right, depth + 1);
+          }
+        }
+      }
+    }
+    /* Core Cast Functions */
+
+  }, {
+    key: "raycast",
+    value: function raycast(mesh, raycaster, ray, intersects) {
+      var _iterator = _createForOfIteratorHelper(this._roots),
+          _step;
+
+      try {
+        for (_iterator.s(); !(_step = _iterator.n()).done;) {
+          var root = _step.value;
+          (0, _castFunctions.setBuffer)(root);
+          (0, _castFunctions.raycast)(0, mesh, raycaster, ray, intersects);
+        }
+      } catch (err) {
+        _iterator.e(err);
+      } finally {
+        _iterator.f();
+      }
+
+      (0, _castFunctions.clearBuffer)();
+    }
+  }, {
+    key: "raycastFirst",
+    value: function raycastFirst(mesh, raycaster, ray) {
+      var closestResult = null;
+
+      var _iterator2 = _createForOfIteratorHelper(this._roots),
+          _step2;
+
+      try {
+        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
+          var root = _step2.value;
+          (0, _castFunctions.setBuffer)(root);
+          var result = (0, _castFunctions.raycastFirst)(0, mesh, raycaster, ray);
+
+          if (result != null && (closestResult == null || result.distance < closestResult.distance)) {
+            closestResult = result;
+          }
+        }
+      } catch (err) {
+        _iterator2.e(err);
+      } finally {
+        _iterator2.f();
+      }
+
+      (0, _castFunctions.clearBuffer)();
+      return closestResult;
+    }
+  }, {
+    key: "intersectsGeometry",
+    value: function intersectsGeometry(mesh, geometry, geomToMesh) {
+      var result = false;
+
+      var _iterator3 = _createForOfIteratorHelper(this._roots),
+          _step3;
+
+      try {
+        for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
+          var root = _step3.value;
+          (0, _castFunctions.setBuffer)(root);
+          result = (0, _castFunctions.intersectsGeometry)(0, mesh, geometry, geomToMesh);
+
+          if (result) {
+            break;
+          }
+        }
+      } catch (err) {
+        _iterator3.e(err);
+      } finally {
+        _iterator3.f();
+      }
+
+      (0, _castFunctions.clearBuffer)();
+      return result;
+    }
+  }, {
+    key: "shapecast",
+    value: function shapecast(mesh, intersectsBoundsFunc) {
+      var intersectsTriangleFunc = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+      var orderNodesFunc = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+      var result = false;
+
+      var _iterator4 = _createForOfIteratorHelper(this._roots),
+          _step4;
+
+      try {
+        for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
+          var root = _step4.value;
+          (0, _castFunctions.setBuffer)(root);
+          result = (0, _castFunctions.shapecast)(0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc);
+
+          if (result) {
+            break;
+          }
+        }
+      } catch (err) {
+        _iterator4.e(err);
+      } finally {
+        _iterator4.f();
+      }
+
+      (0, _castFunctions.clearBuffer)();
+      return result;
+    }
+    /* Derived Cast Functions */
+
+  }, {
+    key: "intersectsBox",
+    value: function intersectsBox(mesh, box, boxToMesh) {
+      obb.set(box.min, box.max, boxToMesh);
+      obb.update();
+      return this.shapecast(mesh, function (box) {
+        return obb.intersectsBox(box);
+      }, function (tri) {
+        return obb.intersectsTriangle(tri);
+      });
+    }
+  }, {
+    key: "intersectsSphere",
+    value: function intersectsSphere(mesh, sphere) {
+      return this.shapecast(mesh, function (box) {
+        return sphere.intersectsBox(box);
+      }, function (tri) {
+        return tri.intersectsSphere(sphere);
+      });
+    }
+  }, {
+    key: "closestPointToGeometry",
+    value: function closestPointToGeometry(mesh, geom, geometryToBvh) {
+      var target1 = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+      var target2 = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : null;
+      var minThreshold = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
+      var maxThreshold = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : Infinity;
+
+      if (!geom.boundingBox) {
+        geom.computeBoundingBox();
+      }
+
+      obb.set(geom.boundingBox.min, geom.boundingBox.max, geometryToBvh);
+      obb.update();
+      var pos = geom.attributes.position;
+      var index = geom.index;
+      var tempTarget1 = null;
+      var tempTarget2 = null;
+
+      if (target1) {
+        tempTarget1 = temp1;
+      }
+
+      if (target2) {
+        tempTarget2 = temp2;
+      }
+
+      var closestDistance = Infinity;
+      this.shapecast(mesh, function (box, isLeaf, score) {
+        return score < closestDistance && score < maxThreshold;
+      }, function (tri) {
+        if (tri.needsUpdate) {
+          tri.update();
+        }
+
+        var sphere1 = tri.sphere;
+
+        for (var i2 = 0, l2 = index.count; i2 < l2; i2 += 3) {
+          (0, _TriangleUtils.setTriangle)(tri2, i2, index, pos);
+          tri2.a.applyMatrix4(geometryToBvh);
+          tri2.b.applyMatrix4(geometryToBvh);
+          tri2.c.applyMatrix4(geometryToBvh);
+          tri2.sphere.setFromPoints(tri2.points);
+          var sphere2 = tri2.sphere;
+          var sphereDist = sphere2.center.distanceTo(sphere1.center) - sphere2.radius - sphere1.radius;
+
+          if (sphereDist > closestDistance) {
+            continue;
+          }
+
+          tri2.update();
+          var dist = tri.distanceToTriangle(tri2, tempTarget1, tempTarget2);
+
+          if (dist < closestDistance) {
+            if (target1) {
+              target1.copy(tempTarget1);
+            }
+
+            if (target2) {
+              target2.copy(tempTarget2);
+            }
+
+            closestDistance = dist;
+          } // stop traversal if we find a point that's under the given threshold
+
+
+          if (dist < minThreshold) {
+            return true;
+          }
+        }
+
+        return false;
+      }, function (box) {
+        return obb.distanceToBox(box, Math.min(closestDistance, maxThreshold));
+      });
+      return closestDistance;
+    }
+  }, {
+    key: "distanceToGeometry",
+    value: function distanceToGeometry(mesh, geom, matrix, minThreshold, maxThreshold) {
+      return this.closestPointToGeometry(mesh, geom, matrix, null, null, minThreshold, maxThreshold);
+    }
+  }, {
+    key: "closestPointToPoint",
+    value: function closestPointToPoint(mesh, point, target) {
+      var minThreshold = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
+      var maxThreshold = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : Infinity;
+      // early out if under minThreshold
+      // skip checking if over maxThreshold
+      // set minThreshold = maxThreshold to quickly check if a point is within a threshold
+      // returns Infinity if no value found
+      var closestDistance = Infinity;
+      this.shapecast(mesh, function (box, isLeaf, score) {
+        return score < closestDistance && score < maxThreshold;
+      }, function (tri) {
+        tri.closestPointToPoint(point, temp);
+        var dist = point.distanceTo(temp);
+
+        if (dist < closestDistance) {
+          if (target) {
+            target.copy(temp);
+          }
+
+          closestDistance = dist;
+        }
+
+        if (dist < minThreshold) {
+          return true;
+        } else {
+          return false;
+        }
+      }, function (box) {
+        return box.distanceToPoint(point);
+      });
+      return closestDistance;
+    }
+  }, {
+    key: "distanceToPoint",
+    value: function distanceToPoint(mesh, point, minThreshold, maxThreshold) {
+      return this.closestPointToPoint(mesh, point, null, minThreshold, maxThreshold);
+    }
+  }]);
+
+  return MeshBVH;
+}();
+
+exports.default = MeshBVH;
+},{"three":"../node_modules/three/build/three.module.js","./Constants.js":"../src/Constants.js","./buildFunctions.js":"../src/buildFunctions.js","./Utils/OrientedBox.js":"../src/Utils/OrientedBox.js","./Utils/SeparatingAxisTriangle.js":"../src/Utils/SeparatingAxisTriangle.js","./Utils/TriangleUtils.js":"../src/Utils/TriangleUtils.js","./castFunctions.js":"../src/castFunctions.js"}],"../src/MeshBVHVisualizer.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _three = require("three");
+
+var _ArrayBoxUtilities = require("./Utils/ArrayBoxUtilities.js");
+
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
+
+function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
+
+function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
+
+function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
+
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
+
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+
+function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
+
+function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
+
+var wiremat = new _three.LineBasicMaterial({
+  color: 0x00FF88,
+  transparent: true,
+  opacity: 0.3
+});
+var boxGeom = new _three.Box3Helper().geometry;
+var boundingBox = new _three.Box3();
+
+var MeshBVHRootVisualizer =
+/*#__PURE__*/
+function (_Group) {
+  _inherits(MeshBVHRootVisualizer, _Group);
+
+  var _super = _createSuper(MeshBVHRootVisualizer);
+
+  function MeshBVHRootVisualizer(mesh) {
+    var _this;
+
+    var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 10;
+    var group = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+
+    _classCallCheck(this, MeshBVHRootVisualizer);
+
+    _this = _super.call(this, 'MeshBVHRootVisualizer');
+    _this.depth = depth;
+    _this.mesh = mesh;
+    _this._group = group;
+
+    _this.update();
+
+    return _this;
+  }
+
+  _createClass(MeshBVHRootVisualizer, [{
+    key: "update",
+    value: function update() {
+      var _this2 = this;
+
+      var boundsTree = this.mesh.geometry.boundsTree;
+      var requiredChildren = 0;
+
+      if (boundsTree) {
+        boundsTree.traverse(function (depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished) {
+          var isTerminal = isLeaf || countOrIsUnfinished; // Stop traversal
+
+          if (depth >= _this2.depth) {
+            return true;
+          }
+
+          if (depth === _this2.depth - 1 || isTerminal) {
+            var m = requiredChildren < _this2.children.length ? _this2.children[requiredChildren] : null;
+
+            if (!m) {
+              m = new _three.LineSegments(boxGeom, wiremat);
+
+              m.raycast = function () {
+                return [];
+              };
+
+              _this2.add(m);
+            }
+
+            requiredChildren++;
+            (0, _ArrayBoxUtilities.arrayToBox)(boundingData, boundingBox);
+            boundingBox.getCenter(m.position);
+            m.scale.subVectors(boundingBox.max, boundingBox.min).multiplyScalar(0.5);
+            if (m.scale.x === 0) m.scale.x = Number.EPSILON;
+            if (m.scale.y === 0) m.scale.y = Number.EPSILON;
+            if (m.scale.z === 0) m.scale.z = Number.EPSILON;
+          }
+        });
+      }
+
+      while (this.children.length > requiredChildren) {
+        this.remove(this.children.pop());
+      }
+    }
+  }]);
+
+  return MeshBVHRootVisualizer;
+}(_three.Group);
+
+var MeshBVHVisualizer =
+/*#__PURE__*/
+function (_Group2) {
+  _inherits(MeshBVHVisualizer, _Group2);
+
+  var _super2 = _createSuper(MeshBVHVisualizer);
+
+  function MeshBVHVisualizer(mesh) {
+    var _this3;
+
+    var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 10;
+
+    _classCallCheck(this, MeshBVHVisualizer);
+
+    _this3 = _super2.call(this, 'MeshBVHVisualizer');
+    _this3.depth = depth;
+    _this3.mesh = mesh;
+    _this3._roots = [];
+
+    _this3.update();
+
+    return _this3;
+  }
+
+  _createClass(MeshBVHVisualizer, [{
+    key: "update",
+    value: function update() {
+      var bvh = this.mesh.geometry.boundsTree;
+      var totalRoots = bvh ? bvh._roots.length : 0;
+
+      while (this._roots.length > totalRoots) {
+        this._roots.pop();
+      }
+
+      for (var i = 0; i < totalRoots; i++) {
+        if (i >= this._roots.length) {
+          var root = new MeshBVHRootVisualizer(this.mesh, this.depth, i);
+          this.add(root);
+
+          this._roots.push(root);
+        } else {
+          var _root = this._roots[i];
+          _root.depth = this.depth;
+          _root.mesh = this.mesh;
+
+          _root.update();
+        }
+      }
+    }
+  }, {
+    key: "updateMatrixWorld",
+    value: function updateMatrixWorld() {
+      var _get2;
+
+      this.position.copy(this.mesh.position);
+      this.rotation.copy(this.mesh.rotation);
+      this.scale.copy(this.mesh.scale);
+
+      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+        args[_key] = arguments[_key];
+      }
+
+      (_get2 = _get(_getPrototypeOf(MeshBVHVisualizer.prototype), "updateMatrixWorld", this)).call.apply(_get2, [this].concat(args));
+    }
+  }, {
+    key: "copy",
+    value: function copy(source) {
+      this.depth = source.depth;
+      this.mesh = source.mesh;
+    }
+  }, {
+    key: "clone",
+    value: function clone() {
+      return new MeshBVHVisualizer(this.mesh, this.depth);
+    }
+  }]);
+
+  return MeshBVHVisualizer;
+}(_three.Group);
+
+var _default = MeshBVHVisualizer;
+exports.default = _default;
+},{"three":"../node_modules/three/build/three.module.js","./Utils/ArrayBoxUtilities.js":"../src/Utils/ArrayBoxUtilities.js"}],"../src/Utils/Debug.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.estimateMemoryInBytes = estimateMemoryInBytes;
+exports.getBVHExtremes = getBVHExtremes;
+
+function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object
+function getPrimitiveSize(el) {
+  switch (_typeof(el)) {
+    case 'number':
+      return 8;
+
+    case 'string':
+      return el.length * 2;
+
+    case 'boolean':
+      return 4;
+
+    default:
+      return 0;
+  }
+}
+
+function isTypedArray(arr) {
+  var regex = /(Uint|Int|Float)(8|16|32)Array/;
+  return regex.test(arr.constructor.name);
+}
+
+function getRootExtremes(bvh, group) {
+  var result = {
+    total: 0,
+    depth: {
+      min: Infinity,
+      max: -Infinity
+    },
+    tris: {
+      min: Infinity,
+      max: -Infinity
+    },
+    splits: [0, 0, 0]
+  };
+  bvh.traverse(function (depth, isLeaf, boundingData, offsetOrSplit, count) {
+    result.total++;
+
+    if (isLeaf) {
+      result.depth.min = Math.min(depth, result.depth.min);
+      result.depth.max = Math.max(depth, result.depth.max);
+      result.tris.min = Math.min(count, result.tris.min);
+      result.tris.max = Math.max(count, result.tris.max);
+    } else {
+      result.splits[offsetOrSplit]++;
+    }
+  }, group); // If there are no leaf nodes because the tree hasn't finished generating yet.
+
+  if (result.tris.min === Infinity) {
+    result.tris.min = 0;
+    result.tris.max = 0;
+  }
+
+  if (result.depth.min === Infinity) {
+    result.depth.min = 0;
+    result.depth.max = 0;
+  }
+
+  return result;
+}
+
+function getBVHExtremes(bvh) {
+  return bvh._roots.map(function (root, i) {
+    return getRootExtremes(bvh, i);
+  });
+}
+
+function estimateMemoryInBytes(obj) {
+  var traversed = new Set();
+  var stack = [obj];
+  var bytes = 0;
+
+  while (stack.length) {
+    var curr = stack.pop();
+
+    if (traversed.has(curr)) {
+      continue;
+    }
+
+    traversed.add(curr);
+
+    for (var key in curr) {
+      if (!curr.hasOwnProperty(key)) {
+        continue;
+      }
+
+      bytes += getPrimitiveSize(key);
+      var value = curr[key];
+
+      if (value && (_typeof(value) === 'object' || typeof value === 'function')) {
+        if (isTypedArray(value)) {
+          bytes += value.byteLength;
+        } else if (value instanceof ArrayBuffer) {
+          bytes += value.byteLength;
+        } else {
+          stack.push(value);
+        }
+      } else {
+        bytes += getPrimitiveSize(value);
+      }
+    }
+  }
+
+  return bytes;
+}
+},{}],"../src/MeshBVHDebug.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.MeshBVHDebug = void 0;
+
+var _three = require("three");
+
+var _ArrayBoxUtilities = require("./Utils/ArrayBoxUtilities.js");
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var box1 = new _three.Box3();
+var box2 = new _three.Box3();
+var vec = new _three.Vector3();
+
+var MeshBVHDebug =
+/*#__PURE__*/
+function () {
+  function MeshBVHDebug(bvh, geometry) {
+    _classCallCheck(this, MeshBVHDebug);
+
+    this.bvh = bvh;
+    this.geometry = geometry;
+  } // Returns a simple, human readable object that represents the BVH.
+
+
+  _createClass(MeshBVHDebug, [{
+    key: "getJSONStructure",
+    value: function getJSONStructure() {
+      var bvh = this.bvh;
+      var depthStack = [];
+      bvh.traverse(function (depth, isLeaf, boundingData, offset, count) {
+        var info = {
+          bounds: (0, _ArrayBoxUtilities.arrayToBox)(boundingData, new _three.Box3())
+        };
+
+        if (isLeaf) {
+          info.count = count;
+          info.offset = offset;
+        } else {
+          info.left = null;
+          info.right = null;
+        }
+
+        depthStack[depth] = info; // traversal hits the left then right node
+
+        var parent = depthStack[depth - 1];
+
+        if (parent) {
+          if (parent.left === null) {
+            parent.left = info;
+          } else {
+            parent.right = info;
+          }
+        }
+      });
+      return depthStack[0];
+    }
+  }, {
+    key: "validateBounds",
+    value: function validateBounds() {
+      var bvh = this.bvh,
+          geometry = this.geometry;
+      var depthStack = [];
+      var index = geometry.index;
+      var position = geometry.getAttribute('position');
+      var passes = true;
+      bvh.traverse(function (depth, isLeaf, boundingData, offset, count) {
+        var info = {
+          depth: depth,
+          isLeaf: isLeaf,
+          boundingData: boundingData,
+          offset: offset,
+          count: count
+        };
+        depthStack[depth] = info;
+        (0, _ArrayBoxUtilities.arrayToBox)(boundingData, box1);
+        var parent = depthStack[depth - 1];
+
+        if (isLeaf) {
+          // check triangles
+          for (var i = offset * 3, l = (offset + count) * 3; i < l; i += 3) {
+            var i0 = index.getX(i);
+            var i1 = index.getX(i + 1);
+            var i2 = index.getX(i + 2);
+            var isContained = void 0;
+            vec.fromBufferAttribute(position, i0);
+            isContained = box1.containsPoint(vec);
+            vec.fromBufferAttribute(position, i1);
+            isContained = isContained && box1.containsPoint(vec);
+            vec.fromBufferAttribute(position, i2);
+            isContained = isContained && box1.containsPoint(vec);
+            console.assert(isContained, 'Leaf bounds does not fully contain triangle.');
+            passes = passes && isContained;
+          }
+        }
+
+        if (parent) {
+          // check if my bounds fit in my parents
+          (0, _ArrayBoxUtilities.arrayToBox)(boundingData, box2);
+
+          var _isContained = box2.containsBox(box1);
+
+          console.assert(_isContained, 'Parent bounds does not fully contain child.');
+          passes = passes && _isContained;
+        }
+      });
+      return passes;
+    }
+  }]);
+
+  return MeshBVHDebug;
+}();
+
+exports.MeshBVHDebug = MeshBVHDebug;
+},{"three":"../node_modules/three/build/three.module.js","./Utils/ArrayBoxUtilities.js":"../src/Utils/ArrayBoxUtilities.js"}],"../src/index.js":[function(require,module,exports) {
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.acceleratedRaycast = acceleratedRaycast;
+exports.computeBoundsTree = computeBoundsTree;
+exports.disposeBoundsTree = disposeBoundsTree;
+Object.defineProperty(exports, "MeshBVH", {
+  enumerable: true,
+  get: function () {
+    return _MeshBVH.default;
+  }
+});
+Object.defineProperty(exports, "Visualizer", {
+  enumerable: true,
+  get: function () {
+    return _MeshBVHVisualizer.default;
+  }
+});
+Object.defineProperty(exports, "MeshBVHVisualizer", {
+  enumerable: true,
+  get: function () {
+    return _MeshBVHVisualizer.default;
+  }
+});
+Object.defineProperty(exports, "CENTER", {
+  enumerable: true,
+  get: function () {
+    return _Constants.CENTER;
+  }
+});
+Object.defineProperty(exports, "AVERAGE", {
+  enumerable: true,
+  get: function () {
+    return _Constants.AVERAGE;
+  }
+});
+Object.defineProperty(exports, "SAH", {
+  enumerable: true,
+  get: function () {
+    return _Constants.SAH;
+  }
+});
+Object.defineProperty(exports, "NOT_INTERSECTED", {
+  enumerable: true,
+  get: function () {
+    return _Constants.NOT_INTERSECTED;
+  }
+});
+Object.defineProperty(exports, "INTERSECTED", {
+  enumerable: true,
+  get: function () {
+    return _Constants.INTERSECTED;
+  }
+});
+Object.defineProperty(exports, "CONTAINED", {
+  enumerable: true,
+  get: function () {
+    return _Constants.CONTAINED;
+  }
+});
+Object.defineProperty(exports, "getBVHExtremes", {
+  enumerable: true,
+  get: function () {
+    return _Debug.getBVHExtremes;
+  }
+});
+Object.defineProperty(exports, "estimateMemoryInBytes", {
+  enumerable: true,
+  get: function () {
+    return _Debug.estimateMemoryInBytes;
+  }
+});
+Object.defineProperty(exports, "MeshBVHDebug", {
+  enumerable: true,
+  get: function () {
+    return _MeshBVHDebug.MeshBVHDebug;
+  }
+});
+
+var _three = require("three");
+
+var _MeshBVH = _interopRequireDefault(require("./MeshBVH.js"));
+
+var _MeshBVHVisualizer = _interopRequireDefault(require("./MeshBVHVisualizer.js"));
+
+var _Constants = require("./Constants.js");
+
+var _Debug = require("./Utils/Debug.js");
+
+var _MeshBVHDebug = require("./MeshBVHDebug.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var ray = new _three.Ray();
+var tmpInverseMatrix = new _three.Matrix4();
+var origMeshRaycastFunc = _three.Mesh.prototype.raycast;
+
+function acceleratedRaycast(raycaster, intersects) {
+  if (this.geometry.boundsTree) {
+    if (this.material === undefined) return;
+    tmpInverseMatrix.copy(this.matrixWorld).invert();
+    ray.copy(raycaster.ray).applyMatrix4(tmpInverseMatrix);
+
+    if (raycaster.firstHitOnly === true) {
+      var res = this.geometry.boundsTree.raycastFirst(this, raycaster, ray);
+      if (res) intersects.push(res);
+    } else {
+      this.geometry.boundsTree.raycast(this, raycaster, ray, intersects);
+    }
+  } else {
+    origMeshRaycastFunc.call(this, raycaster, intersects);
+  }
+}
+
+function computeBoundsTree(options) {
+  this.boundsTree = new _MeshBVH.default(this, options);
+  return this.boundsTree;
+}
+
+function disposeBoundsTree() {
+  this.boundsTree = null;
+}
+},{"three":"../node_modules/three/build/three.module.js","./MeshBVH.js":"../src/MeshBVH.js","./MeshBVHVisualizer.js":"../src/MeshBVHVisualizer.js","./Constants.js":"../src/Constants.js","./Utils/Debug.js":"../src/Utils/Debug.js","./MeshBVHDebug.js":"../src/MeshBVHDebug.js"}],"sculpt.js":[function(require,module,exports) {
+"use strict";
+
+require("core-js/modules/es6.array.copy-within");
+
+require("core-js/modules/es6.array.fill");
+
+require("core-js/modules/es6.array.find");
+
+require("core-js/modules/es6.array.find-index");
+
+require("core-js/modules/es7.array.flat-map");
+
+require("core-js/modules/es6.array.from");
+
+require("core-js/modules/es7.array.includes");
+
+require("core-js/modules/es6.array.iterator");
+
+require("core-js/modules/es6.array.of");
+
+require("core-js/modules/es6.array.sort");
+
+require("core-js/modules/es6.array.species");
+
+require("core-js/modules/es6.date.to-json");
+
+require("core-js/modules/es6.date.to-primitive");
+
+require("core-js/modules/es6.function.has-instance");
+
+require("core-js/modules/es6.function.name");
+
+require("core-js/modules/es6.map");
+
+require("core-js/modules/es6.math.acosh");
+
+require("core-js/modules/es6.math.asinh");
+
+require("core-js/modules/es6.math.atanh");
+
+require("core-js/modules/es6.math.cbrt");
+
+require("core-js/modules/es6.math.clz32");
+
+require("core-js/modules/es6.math.cosh");
+
+require("core-js/modules/es6.math.expm1");
+
+require("core-js/modules/es6.math.fround");
+
+require("core-js/modules/es6.math.hypot");
+
+require("core-js/modules/es6.math.imul");
+
+require("core-js/modules/es6.math.log1p");
+
+require("core-js/modules/es6.math.log10");
+
+require("core-js/modules/es6.math.log2");
+
+require("core-js/modules/es6.math.sign");
+
+require("core-js/modules/es6.math.sinh");
+
+require("core-js/modules/es6.math.tanh");
+
+require("core-js/modules/es6.math.trunc");
+
+require("core-js/modules/es6.number.constructor");
+
+require("core-js/modules/es6.number.epsilon");
+
+require("core-js/modules/es6.number.is-finite");
+
+require("core-js/modules/es6.number.is-integer");
+
+require("core-js/modules/es6.number.is-nan");
+
+require("core-js/modules/es6.number.is-safe-integer");
+
+require("core-js/modules/es6.number.max-safe-integer");
+
+require("core-js/modules/es6.number.min-safe-integer");
+
+require("core-js/modules/es6.number.parse-float");
+
+require("core-js/modules/es6.number.parse-int");
+
+require("core-js/modules/es6.object.assign");
+
+require("core-js/modules/es7.object.define-getter");
+
+require("core-js/modules/es7.object.define-setter");
+
+require("core-js/modules/es7.object.entries");
+
+require("core-js/modules/es6.object.freeze");
+
+require("core-js/modules/es6.object.get-own-property-descriptor");
+
+require("core-js/modules/es7.object.get-own-property-descriptors");
+
+require("core-js/modules/es6.object.get-own-property-names");
+
+require("core-js/modules/es6.object.get-prototype-of");
+
+require("core-js/modules/es7.object.lookup-getter");
+
+require("core-js/modules/es7.object.lookup-setter");
+
+require("core-js/modules/es6.object.prevent-extensions");
+
+require("core-js/modules/es6.object.to-string");
+
+require("core-js/modules/es6.object.is");
+
+require("core-js/modules/es6.object.is-frozen");
+
+require("core-js/modules/es6.object.is-sealed");
+
+require("core-js/modules/es6.object.is-extensible");
+
+require("core-js/modules/es6.object.keys");
+
+require("core-js/modules/es6.object.seal");
+
+require("core-js/modules/es6.object.set-prototype-of");
+
+require("core-js/modules/es7.object.values");
+
+require("core-js/modules/es6.promise");
+
+require("core-js/modules/es7.promise.finally");
+
+require("core-js/modules/es6.reflect.apply");
+
+require("core-js/modules/es6.reflect.construct");
+
+require("core-js/modules/es6.reflect.define-property");
+
+require("core-js/modules/es6.reflect.delete-property");
+
+require("core-js/modules/es6.reflect.get");
+
+require("core-js/modules/es6.reflect.get-own-property-descriptor");
+
+require("core-js/modules/es6.reflect.get-prototype-of");
+
+require("core-js/modules/es6.reflect.has");
+
+require("core-js/modules/es6.reflect.is-extensible");
+
+require("core-js/modules/es6.reflect.own-keys");
+
+require("core-js/modules/es6.reflect.prevent-extensions");
+
+require("core-js/modules/es6.reflect.set");
+
+require("core-js/modules/es6.reflect.set-prototype-of");
+
+require("core-js/modules/es6.regexp.constructor");
+
+require("core-js/modules/es6.regexp.flags");
+
+require("core-js/modules/es6.regexp.match");
+
+require("core-js/modules/es6.regexp.replace");
+
+require("core-js/modules/es6.regexp.split");
+
+require("core-js/modules/es6.regexp.search");
+
+require("core-js/modules/es6.regexp.to-string");
+
+require("core-js/modules/es6.set");
+
+require("core-js/modules/es6.symbol");
+
+require("core-js/modules/es7.symbol.async-iterator");
+
+require("core-js/modules/es6.string.anchor");
+
+require("core-js/modules/es6.string.big");
+
+require("core-js/modules/es6.string.blink");
+
+require("core-js/modules/es6.string.bold");
+
+require("core-js/modules/es6.string.code-point-at");
+
+require("core-js/modules/es6.string.ends-with");
+
+require("core-js/modules/es6.string.fixed");
+
+require("core-js/modules/es6.string.fontcolor");
+
+require("core-js/modules/es6.string.fontsize");
+
+require("core-js/modules/es6.string.from-code-point");
+
+require("core-js/modules/es6.string.includes");
+
+require("core-js/modules/es6.string.italics");
+
+require("core-js/modules/es6.string.iterator");
+
+require("core-js/modules/es6.string.link");
+
+require("core-js/modules/es7.string.pad-start");
+
+require("core-js/modules/es7.string.pad-end");
+
+require("core-js/modules/es6.string.raw");
+
+require("core-js/modules/es6.string.repeat");
+
+require("core-js/modules/es6.string.small");
+
+require("core-js/modules/es6.string.starts-with");
+
+require("core-js/modules/es6.string.strike");
+
+require("core-js/modules/es6.string.sub");
+
+require("core-js/modules/es6.string.sup");
+
+require("core-js/modules/es7.string.trim-left");
+
+require("core-js/modules/es7.string.trim-right");
+
+require("core-js/modules/es6.typed.array-buffer");
+
+require("core-js/modules/es6.typed.int8-array");
+
+require("core-js/modules/es6.typed.uint8-array");
+
+require("core-js/modules/es6.typed.uint8-clamped-array");
+
+require("core-js/modules/es6.typed.int16-array");
+
+require("core-js/modules/es6.typed.uint16-array");
+
+require("core-js/modules/es6.typed.int32-array");
+
+require("core-js/modules/es6.typed.uint32-array");
+
+require("core-js/modules/es6.typed.float32-array");
+
+require("core-js/modules/es6.typed.float64-array");
+
+require("core-js/modules/es6.weak-map");
+
+require("core-js/modules/es6.weak-set");
+
+require("core-js/modules/web.timers");
+
+require("core-js/modules/web.immediate");
+
+require("core-js/modules/web.dom.iterable");
+
+require("regenerator-runtime/runtime");
+
+var _Stats = _interopRequireDefault(require("stats.js/src/Stats"));
+
+var dat = _interopRequireWildcard(require("dat.gui"));
+
+var THREE = _interopRequireWildcard(require("three"));
+
+var _OrbitControls = require("three/examples/jsm/controls/OrbitControls.js");
+
+var _BufferGeometryUtils = require("three/examples/jsm/utils/BufferGeometryUtils.js");
+
+var _index = require("../src/index.js");
+
+function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+THREE.Mesh.prototype.raycast = _index.acceleratedRaycast;
+THREE.BufferGeometry.prototype.computeBoundsTree = _index.computeBoundsTree;
+THREE.BufferGeometry.prototype.disposeBoundsTree = _index.disposeBoundsTree;
+var stats;
+var scene, camera, renderer, controls;
+var targetMesh, brush, bvhHelper;
+var normalZ = new THREE.Vector3(0, 0, 1);
+var mouse = new THREE.Vector2(),
+    lastMouse = new THREE.Vector2();
+var mouseState = false,
+    lastMouseState = false;
+var lastCastPose = new THREE.Vector3();
+var matcap;
+var params = {
+  size: 0.1,
+  brush: 'clay',
+  intensity: 50,
+  maxSteps: 1,
+  invert: false,
+  flatShading: false,
+  depth: 10,
+  displayHelper: false
+};
+init();
+render(); // reset the sculpt mesh
+
+function reset() {
+  // dispose of the mesh if it exists
+  if (targetMesh) {
+    targetMesh.geometry.dispose();
+    targetMesh.material.dispose();
+    scene.remove(targetMesh);
+  } // load the mat cap material if it hasn't been made yet
+
+
+  if (!matcap) {
+    matcap = new THREE.TextureLoader().load('../textures/skinHazardousarts2.jpg');
+  } // merge the vertices because they're not already merged
+
+
+  var geometry = new THREE.IcosahedronBufferGeometry(1, 100);
+  geometry.deleteAttribute('uv');
+  geometry = _BufferGeometryUtils.BufferGeometryUtils.mergeVertices(geometry);
+  geometry.attributes.position.setUsage(THREE.DynamicDrawUsage);
+  geometry.attributes.normal.setUsage(THREE.DynamicDrawUsage);
+  geometry.computeBoundsTree();
+  targetMesh = new THREE.Mesh(geometry, new THREE.MeshMatcapMaterial({
+    flatShading: params.flatShading,
+    matcap: matcap
+  }));
+  targetMesh.material.matcap.encoding = THREE.sRGBEncoding;
+  scene.add(targetMesh); // initialize bvh helper
+
+  if (!bvhHelper) {
+    bvhHelper = new _index.MeshBVHVisualizer(targetMesh, params.depth);
+    bvhHelper.visible = params.displayHelper;
+    scene.add(bvhHelper);
+  }
+
+  bvhHelper.mesh = targetMesh;
+  bvhHelper.update();
+}
+
+function init() {
+  var bgColor = 0x263238 / 2; // renderer setup
+
+  renderer = new THREE.WebGLRenderer({
+    antialias: true
+  });
+  renderer.setPixelRatio(window.devicePixelRatio);
+  renderer.setSize(window.innerWidth, window.innerHeight);
+  renderer.setClearColor(bgColor, 1);
+  renderer.gammaOutput = true;
+  document.body.appendChild(renderer.domElement); // scene setup
+
+  scene = new THREE.Scene();
+  scene.fog = new THREE.Fog(0x263238 / 2, 20, 60);
+  var light = new THREE.DirectionalLight(0xffffff, 0.5);
+  light.position.set(1, 1, 1);
+  scene.add(light);
+  scene.add(new THREE.AmbientLight(0xffffff, 0.4)); // geometry setup
+
+  reset(); // initialize brush cursor
+
+  var brushSegments = [new THREE.Vector3(), new THREE.Vector3(0, 0, 1)];
+
+  for (var i = 0; i < 50; i++) {
+    var nexti = i + 1;
+    var x1 = Math.sin(2 * Math.PI * i / 50);
+    var y1 = Math.cos(2 * Math.PI * i / 50);
+    var x2 = Math.sin(2 * Math.PI * nexti / 50);
+    var y2 = Math.cos(2 * Math.PI * nexti / 50);
+    brushSegments.push(new THREE.Vector3(x1, y1, 0), new THREE.Vector3(x2, y2, 0));
+  }
+
+  brush = new THREE.LineSegments();
+  brush.geometry.setFromPoints(brushSegments);
+  brush.material.color.set(0xfb8c00);
+  scene.add(brush); // camera setup
+
+  camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 50);
+  camera.position.set(3, 3, 3);
+  camera.far = 100;
+  camera.updateProjectionMatrix();
+  controls = new _OrbitControls.OrbitControls(camera, renderer.domElement);
+  controls.minDistance = 1.5; // stats setup
+
+  stats = new _Stats.default();
+  document.body.appendChild(stats.dom);
+  var gui = new dat.GUI();
+  var sculptFolder = gui.addFolder('Sculpting');
+  sculptFolder.add(params, 'brush', ['normal', 'clay', 'flatten']);
+  sculptFolder.add(params, 'size').min(0.025).max(0.25).step(0.005);
+  sculptFolder.add(params, 'intensity').min(1).max(100).step(1); // sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
+
+  sculptFolder.add(params, 'invert');
+  sculptFolder.add(params, 'flatShading').onChange(function (value) {
+    targetMesh.material.flatShading = value;
+    targetMesh.material.needsUpdate = true;
+  });
+  sculptFolder.open();
+  var helperFolder = gui.addFolder('BVH Helper');
+  helperFolder.add(params, 'depth').min(1).max(20).step(1).onChange(function (d) {
+    bvhHelper.depth = parseFloat(d);
+    bvhHelper.update();
+  });
+  helperFolder.add(params, 'displayHelper').onChange(function (display) {
+    bvhHelper.visible = display;
+  });
+  helperFolder.open();
+  gui.add({
+    reset: reset
+  }, 'reset');
+  gui.add({
+    rebuildBVH: function rebuildBVH() {
+      targetMesh.geometry.computeBoundsTree();
+      bvhHelper.update();
+    }
+  }, 'rebuildBVH');
+  gui.open();
+  controls.addEventListener('start', function () {
+    this.active = true;
+  });
+  controls.addEventListener('end', function () {
+    this.active = false;
+  });
+  window.addEventListener('resize', function () {
+    camera.aspect = window.innerWidth / window.innerHeight;
+    camera.updateProjectionMatrix();
+    renderer.setSize(window.innerWidth, window.innerHeight);
+  }, false);
+  window.addEventListener('mousemove', function (e) {
+    mouse.x = e.clientX / window.innerWidth * 2 - 1;
+    mouse.y = -(e.clientY / window.innerHeight) * 2 + 1;
+  });
+  window.addEventListener('mousedown', function (e) {
+    mouseState = Boolean(e.buttons & 1);
+  });
+  window.addEventListener('mouseup', function (e) {
+    mouseState = Boolean(e.buttons & 1);
+  });
+  window.addEventListener('contextmenu', function (e) {
+    e.preventDefault();
+  });
+  window.addEventListener('wheel', function (e) {
+    var delta = e.deltaY;
+
+    if (e.deltaMode === 1) {
+      delta *= 40;
+    }
+
+    if (e.deltaMode === 2) {
+      delta *= 40;
+    }
+
+    params.size += delta * 0.0005;
+    params.size = Math.max(Math.min(params.size, 0.25), 0.025);
+    gui.updateDisplay();
+  });
+} // Run the perform the brush movement
+
+
+function performStroke(point) {
+  var brushOnly = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+  var inverseMatrix = new THREE.Matrix4();
+  inverseMatrix.copy(targetMesh.matrixWorld).invert();
+  var sphere = new THREE.Sphere();
+  sphere.center.copy(point).applyMatrix4(inverseMatrix);
+  sphere.radius = params.size; // Collect the intersected vertices
+
+  var indices = new Set();
+  var tempVec = new THREE.Vector3();
+  var tempVec2 = new THREE.Vector3();
+  var normal = new THREE.Vector3();
+  var bvh = targetMesh.geometry.boundsTree;
+  bvh.shapecast(targetMesh, function (box) {
+    var intersects = sphere.intersectsBox(box);
+    var min = box.min,
+        max = box.max;
+
+    if (intersects) {
+      for (var x = 0; x <= 1; x++) {
+        for (var y = 0; y <= 1; y++) {
+          for (var z = 0; z <= 1; z++) {
+            tempVec.set(x === 0 ? min.x : max.x, y === 0 ? min.y : max.y, z === 0 ? min.z : max.z);
+
+            if (!sphere.containsPoint(tempVec)) {
+              return _index.INTERSECTED;
+            }
+          }
+        }
+      }
+
+      return _index.CONTAINED;
+    }
+
+    return intersects ? _index.INTERSECTED : _index.NOT_INTERSECTED;
+  }, function (tri, a, b, c, contained) {
+    if (contained) {
+      indices.add(a);
+      indices.add(b);
+      indices.add(c);
+    } else {
+      if (sphere.containsPoint(tri.a)) {
+        indices.add(a);
+      }
+
+      if (sphere.containsPoint(tri.b)) {
+        indices.add(b);
+      }
+
+      if (sphere.containsPoint(tri.c)) {
+        indices.add(c);
+      }
+    }
+
+    return false;
+  }); // Compute the average normal at this point
+
+  var indexAttr = targetMesh.geometry.index;
+  var posAttr = targetMesh.geometry.attributes.position;
+  var normalAttr = targetMesh.geometry.attributes.normal;
+  tempVec2.copy(point).applyMatrix4(inverseMatrix);
+  indices.forEach(function (i) {
+    var index = indexAttr.getX(i);
+    tempVec.fromBufferAttribute(normalAttr, index);
+    normal.add(tempVec);
+  });
+  normal.normalize();
+  brush.quaternion.setFromUnitVectors(normalZ, normal); // Early out if we just want to adjust the brush
+
+  if (brushOnly) {
+    return;
+  } // perform vertex adjustment
+
+
+  var targetHeight = params.intensity * 0.000025;
+  var plane = new THREE.Plane();
+  plane.setFromNormalAndCoplanarPoint(normal, point);
+  var indexToTriangles = {};
+  indices.forEach(function (i) {
+    var index = indexAttr.getX(i);
+    tempVec.fromBufferAttribute(posAttr, index); // compute the offset intensity
+
+    var dist = tempVec.distanceTo(tempVec2);
+    var intensity = 1.0 - dist / params.size;
+    intensity = Math.pow(intensity, 3);
+
+    if (params.invert) {
+      intensity *= -1;
+    } // offset the vertex
+
+
+    if (params.brush === 'clay') {
+      var planeDist = plane.distanceToPoint(tempVec);
+      var clampedIntensity = Math.min(intensity * 5, 1);
+      tempVec.addScaledVector(normal, clampedIntensity * targetHeight - planeDist * clampedIntensity * 0.5);
+    } else if (params.brush === 'normal') {
+      tempVec.addScaledVector(normal, intensity * targetHeight);
+    } else if (params.brush === 'flatten') {
+      var _planeDist = plane.distanceToPoint(tempVec);
+
+      tempVec.addScaledVector(normal, -_planeDist * intensity * params.intensity * 0.01);
+    }
+
+    posAttr.setXYZ(index, tempVec.x, tempVec.y, tempVec.z); // save all the triangles that are connected to this vertex
+
+    var arr = indexToTriangles[index];
+
+    if (!arr) {
+      arr = indexToTriangles[index] = [];
+    }
+
+    arr.push(~~(i / 3));
+  }); // If we found vertices
+
+  if (indices.size) {
+    // compute the new vertex normal
+    // TODO: this can be improved by computing the normal vertices in place in
+    // the buffer then normalizing them and avoiding recomputing the normal for the
+    // same triangles multiple times
+    var triangle = new THREE.Triangle();
+
+    for (var index in indexToTriangles) {
+      tempVec.set(0, 0, 0);
+      var arr = indexToTriangles[index];
+
+      for (var tri in arr) {
+        var i3 = arr[tri] * 3;
+        triangle.a.fromBufferAttribute(posAttr, indexAttr.getX(i3 + 0));
+        triangle.b.fromBufferAttribute(posAttr, indexAttr.getX(i3 + 1));
+        triangle.c.fromBufferAttribute(posAttr, indexAttr.getX(i3 + 2));
+        triangle.getNormal(tempVec2);
+        tempVec.add(tempVec2);
+      }
+
+      tempVec.normalize();
+      normalAttr.setXYZ(index, tempVec.x, tempVec.y, tempVec.z);
+    }
+
+    posAttr.needsUpdate = true;
+    normalAttr.needsUpdate = true; // TODO: refit bounds here once it's optimized
+  }
+}
+
+function render() {
+  requestAnimationFrame(render);
+  stats.begin();
+
+  if (controls.active) {
+    // If the controls are being used then don't perform the strokes
+    brush.visible = false;
+    lastCastPose.setScalar(Infinity);
+  } else {
+    var raycaster = new THREE.Raycaster();
+    raycaster.setFromCamera(mouse, camera);
+    raycaster.firstHitOnly = true;
+    var hit = raycaster.intersectObject(targetMesh, true)[0]; // if we hit the target mesh
+
+    if (hit) {
+      brush.visible = true;
+      brush.scale.set(params.size, params.size, 0.1);
+      brush.position.copy(hit.point);
+      brush.quaternion.setFromUnitVectors(normalZ, hit.face.normal);
+      controls.enabled = false; // if the last cast pose was missed in the last frame then set it to
+      // the current point so we don't streak across the surface
+
+      if (lastCastPose.x === Infinity) {
+        lastCastPose.copy(hit.point);
+      } // If the mouse isn't pressed don't perform the stroke
+
+
+      if (!(mouseState || lastMouseState)) {
+        performStroke(hit.point, true);
+        lastMouse.copy(mouse);
+        lastCastPose.copy(hit.point);
+      } else {
+        // compute the distance the mouse moved and that the cast point moved
+        var mdx = (mouse.x - lastMouse.x) * window.innerWidth * window.devicePixelRatio;
+        var mdy = (mouse.y - lastMouse.y) * window.innerHeight * window.devicePixelRatio;
+        var mdist = Math.sqrt(mdx * mdx + mdy * mdy);
+        var castDist = hit.point.distanceTo(lastCastPose);
+        var step = params.size * 0.15;
+        var percent = Math.max(step / castDist, 1 / params.maxSteps);
+        var mstep = mdist * percent;
+        var stepCount = 0; // perform multiple iterations toward the current mouse pose for a consistent stroke
+        // TODO: recast here so he cursor is on the surface of the model which requires faster
+        // refitting of the model
+
+        while (castDist > step && mdist > params.size * 200 / hit.distance) {
+          lastMouse.lerp(mouse, percent);
+          lastCastPose.lerp(hit.point, percent);
+          castDist -= step;
+          mdist -= mstep;
+          performStroke(lastCastPose, false);
+          stepCount++;
+
+          if (stepCount > params.maxSteps) {
+            break;
+          }
+        } // refit the bounds if we adjusted the mesh
+
+
+        if (stepCount > 0) {
+          targetMesh.geometry.boundsTree.refit(targetMesh.geometry);
+          bvhHelper.update();
+        } else {
+          performStroke(hit.point, true);
+        }
+      }
+    } else {
+      // if we didn't hit
+      controls.enabled = true;
+      brush.visible = false;
+      lastMouse.copy(mouse);
+      lastCastPose.setScalar(Infinity);
+    }
+  }
+
+  lastMouseState = mouseState;
+  renderer.render(scene, camera);
+  stats.end();
+}
+},{"core-js/modules/es6.array.copy-within":"../node_modules/core-js/modules/es6.array.copy-within.js","core-js/modules/es6.array.fill":"../node_modules/core-js/modules/es6.array.fill.js","core-js/modules/es6.array.find":"../node_modules/core-js/modules/es6.array.find.js","core-js/modules/es6.array.find-index":"../node_modules/core-js/modules/es6.array.find-index.js","core-js/modules/es7.array.flat-map":"../node_modules/core-js/modules/es7.array.flat-map.js","core-js/modules/es6.array.from":"../node_modules/core-js/modules/es6.array.from.js","core-js/modules/es7.array.includes":"../node_modules/core-js/modules/es7.array.includes.js","core-js/modules/es6.array.iterator":"../node_modules/core-js/modules/es6.array.iterator.js","core-js/modules/es6.array.of":"../node_modules/core-js/modules/es6.array.of.js","core-js/modules/es6.array.sort":"../node_modules/core-js/modules/es6.array.sort.js","core-js/modules/es6.array.species":"../node_modules/core-js/modules/es6.array.species.js","core-js/modules/es6.date.to-json":"../node_modules/core-js/modules/es6.date.to-json.js","core-js/modules/es6.date.to-primitive":"../node_modules/core-js/modules/es6.date.to-primitive.js","core-js/modules/es6.function.has-instance":"../node_modules/core-js/modules/es6.function.has-instance.js","core-js/modules/es6.function.name":"../node_modules/core-js/modules/es6.function.name.js","core-js/modules/es6.map":"../node_modules/core-js/modules/es6.map.js","core-js/modules/es6.math.acosh":"../node_modules/core-js/modules/es6.math.acosh.js","core-js/modules/es6.math.asinh":"../node_modules/core-js/modules/es6.math.asinh.js","core-js/modules/es6.math.atanh":"../node_modules/core-js/modules/es6.math.atanh.js","core-js/modules/es6.math.cbrt":"../node_modules/core-js/modules/es6.math.cbrt.js","core-js/modules/es6.math.clz32":"../node_modules/core-js/modules/es6.math.clz32.js","core-js/modules/es6.math.cosh":"../node_modules/core-js/modules/es6.math.cosh.js","core-js/modules/es6.math.expm1":"../node_modules/core-js/modules/es6.math.expm1.js","core-js/modules/es6.math.fround":"../node_modules/core-js/modules/es6.math.fround.js","core-js/modules/es6.math.hypot":"../node_modules/core-js/modules/es6.math.hypot.js","core-js/modules/es6.math.imul":"../node_modules/core-js/modules/es6.math.imul.js","core-js/modules/es6.math.log1p":"../node_modules/core-js/modules/es6.math.log1p.js","core-js/modules/es6.math.log10":"../node_modules/core-js/modules/es6.math.log10.js","core-js/modules/es6.math.log2":"../node_modules/core-js/modules/es6.math.log2.js","core-js/modules/es6.math.sign":"../node_modules/core-js/modules/es6.math.sign.js","core-js/modules/es6.math.sinh":"../node_modules/core-js/modules/es6.math.sinh.js","core-js/modules/es6.math.tanh":"../node_modules/core-js/modules/es6.math.tanh.js","core-js/modules/es6.math.trunc":"../node_modules/core-js/modules/es6.math.trunc.js","core-js/modules/es6.number.constructor":"../node_modules/core-js/modules/es6.number.constructor.js","core-js/modules/es6.number.epsilon":"../node_modules/core-js/modules/es6.number.epsilon.js","core-js/modules/es6.number.is-finite":"../node_modules/core-js/modules/es6.number.is-finite.js","core-js/modules/es6.number.is-integer":"../node_modules/core-js/modules/es6.number.is-integer.js","core-js/modules/es6.number.is-nan":"../node_modules/core-js/modules/es6.number.is-nan.js","core-js/modules/es6.number.is-safe-integer":"../node_modules/core-js/modules/es6.number.is-safe-integer.js","core-js/modules/es6.number.max-safe-integer":"../node_modules/core-js/modules/es6.number.max-safe-integer.js","core-js/modules/es6.number.min-safe-integer":"../node_modules/core-js/modules/es6.number.min-safe-integer.js","core-js/modules/es6.number.parse-float":"../node_modules/core-js/modules/es6.number.parse-float.js","core-js/modules/es6.number.parse-int":"../node_modules/core-js/modules/es6.number.parse-int.js","core-js/modules/es6.object.assign":"../node_modules/core-js/modules/es6.object.assign.js","core-js/modules/es7.object.define-getter":"../node_modules/core-js/modules/es7.object.define-getter.js","core-js/modules/es7.object.define-setter":"../node_modules/core-js/modules/es7.object.define-setter.js","core-js/modules/es7.object.entries":"../node_modules/core-js/modules/es7.object.entries.js","core-js/modules/es6.object.freeze":"../node_modules/core-js/modules/es6.object.freeze.js","core-js/modules/es6.object.get-own-property-descriptor":"../node_modules/core-js/modules/es6.object.get-own-property-descriptor.js","core-js/modules/es7.object.get-own-property-descriptors":"../node_modules/core-js/modules/es7.object.get-own-property-descriptors.js","core-js/modules/es6.object.get-own-property-names":"../node_modules/core-js/modules/es6.object.get-own-property-names.js","core-js/modules/es6.object.get-prototype-of":"../node_modules/core-js/modules/es6.object.get-prototype-of.js","core-js/modules/es7.object.lookup-getter":"../node_modules/core-js/modules/es7.object.lookup-getter.js","core-js/modules/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de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). 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0;const t="126";exports.REVISION="126";const e={LEFT:0,MIDDLE:1,RIGHT:2,ROTATE:0,DOLLY:1,PAN:2};exports.MOUSE=e;const n={ROTATE:0,PAN:1,DOLLY_PAN:2,DOLLY_ROTATE:3};exports.TOUCH=n;const r=0;exports.CullFaceNone=r;const i=1;exports.CullFaceBack=i;const s=2;exports.CullFaceFront=s;const o=3;exports.CullFaceFrontBack=3;const a=0;exports.BasicShadowMap=0;const l=1;exports.PCFShadowMap=l;const c=2;exports.PCFSoftShadowMap=c;const h=3;exports.VSMShadowMap=h;const u=0;exports.FrontSide=u;const p=1;exports.BackSide=p;const d=2;exports.DoubleSide=d;const m=1;exports.FlatShading=1;const f=2;exports.SmoothShading=2;const g=0;exports.NoBlending=g;const x=1;exports.NormalBlending=x;const v=2;exports.AdditiveBlending=v;const y=3;exports.SubtractiveBlending=y;const _=4;exports.MultiplyBlending=_;const b=5;exports.CustomBlending=b;const w=100;exports.AddEquation=w;const M=101;exports.SubtractEquation=M;const S=102;exports.ReverseSubtractEquation=S;const T=103;exports.MinEquation=T;const E=104;exports.MaxEquation=E;const A=200;exports.ZeroFactor=A;const L=201;exports.OneFactor=L;const R=202;exports.SrcColorFactor=R;const C=203;exports.OneMinusSrcColorFactor=C;const P=204;exports.SrcAlphaFactor=P;const D=205;exports.OneMinusSrcAlphaFactor=D;const I=206;exports.DstAlphaFactor=I;const B=207;exports.OneMinusDstAlphaFactor=B;const N=208;exports.DstColorFactor=N;const F=209;exports.OneMinusDstColorFactor=F;const O=210;exports.SrcAlphaSaturateFactor=O;const z=0;exports.NeverDepth=z;const G=1;exports.AlwaysDepth=G;const H=2;exports.LessDepth=H;const U=3;exports.LessEqualDepth=U;const k=4;exports.EqualDepth=k;const V=5;exports.GreaterEqualDepth=V;const W=6;exports.GreaterDepth=W;const j=7;exports.NotEqualDepth=j;const q=0;exports.MultiplyOperation=q;const X=1;exports.MixOperation=X;const Y=2;exports.AddOperation=Y;const Z=0;exports.NoToneMapping=Z;const J=1;exports.LinearToneMapping=J;const Q=2;exports.ReinhardToneMapping=Q;const K=3;exports.CineonToneMapping=K;const $=4;exports.ACESFilmicToneMapping=$;const tt=5;exports.CustomToneMapping=tt;const et=300;exports.UVMapping=et;const nt=301;exports.CubeReflectionMapping=nt;const rt=302;exports.CubeRefractionMapping=rt;const it=303;exports.EquirectangularReflectionMapping=it;const st=304;exports.EquirectangularRefractionMapping=st;const ot=306;exports.CubeUVReflectionMapping=ot;const at=307;exports.CubeUVRefractionMapping=at;const lt=1e3;exports.RepeatWrapping=lt;const ct=1001;exports.ClampToEdgeWrapping=ct;const ht=1002;exports.MirroredRepeatWrapping=ht;const ut=1003;exports.NearestFilter=ut;const pt=1004;exports.NearestMipmapNearestFilter=pt;const dt=1004;exports.NearestMipMapNearestFilter=1004;const mt=1005;exports.NearestMipmapLinearFilter=mt;const ft=1005;exports.NearestMipMapLinearFilter=1005;const gt=1006;exports.LinearFilter=gt;const xt=1007;exports.LinearMipmapNearestFilter=xt;const vt=1007;exports.LinearMipMapNearestFilter=1007;const yt=1008;exports.LinearMipmapLinearFilter=yt;const _t=1008;exports.LinearMipMapLinearFilter=1008;const bt=1009;exports.UnsignedByteType=bt;const wt=1010;exports.ByteType=wt;const Mt=1011;exports.ShortType=Mt;const St=1012;exports.UnsignedShortType=St;const Tt=1013;exports.IntType=Tt;const Et=1014;exports.UnsignedIntType=Et;const At=1015;exports.FloatType=At;const Lt=1016;exports.HalfFloatType=Lt;const Rt=1017;exports.UnsignedShort4444Type=Rt;const Ct=1018;exports.UnsignedShort5551Type=Ct;const Pt=1019;exports.UnsignedShort565Type=Pt;const Dt=1020;exports.UnsignedInt248Type=Dt;const It=1021;exports.AlphaFormat=It;const Bt=1022;exports.RGBFormat=Bt;const Nt=1023;exports.RGBAFormat=Nt;const Ft=1024;exports.LuminanceFormat=Ft;const Ot=1025;exports.LuminanceAlphaFormat=Ot;const zt=Nt;exports.RGBEFormat=zt;const Gt=1026;exports.DepthFormat=Gt;const Ht=1027;exports.DepthStencilFormat=Ht;const Ut=1028;exports.RedFormat=Ut;const kt=1029;exports.RedIntegerFormat=kt;const Vt=1030;exports.RGFormat=Vt;const Wt=1031;exports.RGIntegerFormat=Wt;const jt=1032;exports.RGBIntegerFormat=jt;const qt=1033;exports.RGBAIntegerFormat=qt;const Xt=33776;exports.RGB_S3TC_DXT1_Format=Xt;const Yt=33777;exports.RGBA_S3TC_DXT1_Format=Yt;const Zt=33778;exports.RGBA_S3TC_DXT3_Format=Zt;const Jt=33779;exports.RGBA_S3TC_DXT5_Format=Jt;const Qt=35840;exports.RGB_PVRTC_4BPPV1_Format=Qt;const Kt=35841;exports.RGB_PVRTC_2BPPV1_Format=Kt;const $t=35842;exports.RGBA_PVRTC_4BPPV1_Format=$t;const te=35843;exports.RGBA_PVRTC_2BPPV1_Format=te;const ee=36196;exports.RGB_ETC1_Format=ee;const ne=37492;exports.RGB_ETC2_Format=ne;const re=37496;exports.RGBA_ETC2_EAC_Format=re;const ie=37808;exports.RGBA_ASTC_4x4_Format=ie;const se=37809;exports.RGBA_ASTC_5x4_Format=se;const oe=37810;exports.RGBA_ASTC_5x5_Format=oe;const ae=37811;exports.RGBA_ASTC_6x5_Format=ae;const le=37812;exports.RGBA_ASTC_6x6_Format=le;const ce=37813;exports.RGBA_ASTC_8x5_Format=ce;const he=37814;exports.RGBA_ASTC_8x6_Format=he;const ue=37815;exports.RGBA_ASTC_8x8_Format=ue;const pe=37816;exports.RGBA_ASTC_10x5_Format=pe;const de=37817;exports.RGBA_ASTC_10x6_Format=de;const me=37818;exports.RGBA_ASTC_10x8_Format=me;const fe=37819;exports.RGBA_ASTC_10x10_Format=fe;const ge=37820;exports.RGBA_ASTC_12x10_Format=ge;const xe=37821;exports.RGBA_ASTC_12x12_Format=xe;const ve=36492;exports.RGBA_BPTC_Format=ve;const ye=37840;exports.SRGB8_ALPHA8_ASTC_4x4_Format=ye;const _e=37841;exports.SRGB8_ALPHA8_ASTC_5x4_Format=_e;const be=37842;exports.SRGB8_ALPHA8_ASTC_5x5_Format=be;const we=37843;exports.SRGB8_ALPHA8_ASTC_6x5_Format=we;const Me=37844;exports.SRGB8_ALPHA8_ASTC_6x6_Format=Me;const Se=37845;exports.SRGB8_ALPHA8_ASTC_8x5_Format=Se;const Te=37846;exports.SRGB8_ALPHA8_ASTC_8x6_Format=Te;const Ee=37847;exports.SRGB8_ALPHA8_ASTC_8x8_Format=Ee;const Ae=37848;exports.SRGB8_ALPHA8_ASTC_10x5_Format=Ae;const Le=37849;exports.SRGB8_ALPHA8_ASTC_10x6_Format=Le;const Re=37850;exports.SRGB8_ALPHA8_ASTC_10x8_Format=Re;const Ce=37851;exports.SRGB8_ALPHA8_ASTC_10x10_Format=Ce;const Pe=37852;exports.SRGB8_ALPHA8_ASTC_12x10_Format=Pe;const De=37853;exports.SRGB8_ALPHA8_ASTC_12x12_Format=De;const Ie=2200;exports.LoopOnce=Ie;const Be=2201;exports.LoopRepeat=Be;const Ne=2202;exports.LoopPingPong=Ne;const Fe=2300;exports.InterpolateDiscrete=Fe;const Oe=2301;exports.InterpolateLinear=Oe;const ze=2302;exports.InterpolateSmooth=ze;const Ge=2400;exports.ZeroCurvatureEnding=Ge;const He=2401;exports.ZeroSlopeEnding=He;const Ue=2402;exports.WrapAroundEnding=Ue;const ke=2500;exports.NormalAnimationBlendMode=ke;const Ve=2501;exports.AdditiveAnimationBlendMode=Ve;const We=0;exports.TrianglesDrawMode=0;const je=1;exports.TriangleStripDrawMode=1;const qe=2;exports.TriangleFanDrawMode=2;const Xe=3e3;exports.LinearEncoding=Xe;const Ye=3001;exports.sRGBEncoding=Ye;const Ze=3007;exports.GammaEncoding=Ze;const Je=3002;exports.RGBEEncoding=Je;const Qe=3003;exports.LogLuvEncoding=Qe;const Ke=3004;exports.RGBM7Encoding=Ke;const $e=3005;exports.RGBM16Encoding=$e;const tn=3006;exports.RGBDEncoding=tn;const en=3200;exports.BasicDepthPacking=en;const nn=3201;exports.RGBADepthPacking=nn;const rn=0;exports.TangentSpaceNormalMap=rn;const sn=1;exports.ObjectSpaceNormalMap=sn;const on=0;exports.ZeroStencilOp=0;const an=7680;exports.KeepStencilOp=an;const ln=7681;exports.ReplaceStencilOp=7681;const cn=7682;exports.IncrementStencilOp=7682;const hn=7683;exports.DecrementStencilOp=7683;const un=34055;exports.IncrementWrapStencilOp=34055;const pn=34056;exports.DecrementWrapStencilOp=34056;const dn=5386;exports.InvertStencilOp=5386;const mn=512;exports.NeverStencilFunc=512;const fn=513;exports.LessStencilFunc=513;const gn=514;exports.EqualStencilFunc=514;const xn=515;exports.LessEqualStencilFunc=515;const vn=516;exports.GreaterStencilFunc=516;const yn=517;exports.NotEqualStencilFunc=517;const _n=518;exports.GreaterEqualStencilFunc=518;const bn=519;exports.AlwaysStencilFunc=bn;const wn=35044;exports.StaticDrawUsage=wn;const Mn=35048;exports.DynamicDrawUsage=Mn;const Sn=35040;exports.StreamDrawUsage=35040;const Tn=35045;exports.StaticReadUsage=35045;const En=35049;exports.DynamicReadUsage=35049;const An=35041;exports.StreamReadUsage=35041;const Ln=35046;exports.StaticCopyUsage=35046;const Rn=35050;exports.DynamicCopyUsage=35050;const Cn=35042;exports.StreamCopyUsage=35042;const Pn="100";exports.GLSL1="100";const Dn="300 es";function In(){}exports.GLSL3=Dn,Object.assign(In.prototype,{addEventListener:function(t,e){void 0===this._listeners&&(this._listeners={});const n=this._listeners;void 0===n[t]&&(n[t]=[]),-1===n[t].indexOf(e)&&n[t].push(e)},hasEventListener:function(t,e){if(void 0===this._listeners)return!1;const n=this._listeners;return void 0!==n[t]&&-1!==n[t].indexOf(e)},removeEventListener:function(t,e){if(void 0===this._listeners)return;const n=this._listeners[t];if(void 0!==n){const t=n.indexOf(e);-1!==t&&n.splice(t,1)}},dispatchEvent:function(t){if(void 0===this._listeners)return;const e=this._listeners[t.type];if(void 0!==e){t.target=this;const n=e.slice(0);for(let e=0,r=n.length;e<r;e++)n[e].call(this,t)}}});const Bn=[];for(let yx=0;yx<256;yx++)Bn[yx]=(yx<16?"0":"")+yx.toString(16);let Nn=1234567;const Fn={DEG2RAD:Math.PI/180,RAD2DEG:180/Math.PI,generateUUID:function(){const t=4294967295*Math.random()|0,e=4294967295*Math.random()|0,n=4294967295*Math.random()|0,r=4294967295*Math.random()|0;return(Bn[255&t]+Bn[t>>8&255]+Bn[t>>16&255]+Bn[t>>24&255]+"-"+Bn[255&e]+Bn[e>>8&255]+"-"+Bn[e>>16&15|64]+Bn[e>>24&255]+"-"+Bn[63&n|128]+Bn[n>>8&255]+"-"+Bn[n>>16&255]+Bn[n>>24&255]+Bn[255&r]+Bn[r>>8&255]+Bn[r>>16&255]+Bn[r>>24&255]).toUpperCase()},clamp:function(t,e,n){return Math.max(e,Math.min(n,t))},euclideanModulo:function(t,e){return(t%e+e)%e},mapLinear:function(t,e,n,r,i){return r+(t-e)*(i-r)/(n-e)},lerp:function(t,e,n){return(1-n)*t+n*e},damp:function(t,e,n,r){return Fn.lerp(t,e,1-Math.exp(-n*r))},pingpong:function(t,e=1){return e-Math.abs(Fn.euclideanModulo(t,2*e)-e)},smoothstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*(3-2*t)},smootherstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*t*(t*(6*t-15)+10)},randInt:function(t,e){return t+Math.floor(Math.random()*(e-t+1))},randFloat:function(t,e){return t+Math.random()*(e-t)},randFloatSpread:function(t){return t*(.5-Math.random())},seededRandom:function(t){return void 0!==t&&(Nn=t%2147483647),((Nn=16807*Nn%2147483647)-1)/2147483646},degToRad:function(t){return t*Fn.DEG2RAD},radToDeg:function(t){return t*Fn.RAD2DEG},isPowerOfTwo:function(t){return 0==(t&t-1)&&0!==t},ceilPowerOfTwo:function(t){return Math.pow(2,Math.ceil(Math.log(t)/Math.LN2))},floorPowerOfTwo:function(t){return Math.pow(2,Math.floor(Math.log(t)/Math.LN2))},setQuaternionFromProperEuler:function(t,e,n,r,i){const s=Math.cos,o=Math.sin,a=s(n/2),l=o(n/2),c=s((e+r)/2),h=o((e+r)/2),u=s((e-r)/2),p=o((e-r)/2),d=s((r-e)/2),m=o((r-e)/2);switch(i){case"XYX":t.set(a*h,l*u,l*p,a*c);break;case"YZY":t.set(l*p,a*h,l*u,a*c);break;case"ZXZ":t.set(l*u,l*p,a*h,a*c);break;case"XZX":t.set(a*h,l*m,l*d,a*c);break;case"YXY":t.set(l*d,a*h,l*m,a*c);break;case"ZYZ":t.set(l*m,l*d,a*h,a*c);break;default:console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+i)}}};exports.MathUtils=exports.Math=Fn;class On{constructor(t=0,e=0){this.x=t,this.y=e}get width(){return this.x}set width(t){this.x=t}get height(){return this.y}set height(t){this.y=t}set(t,e){return this.x=t,this.y=e,this}setScalar(t){return this.x=t,this.y=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y)}copy(t){return this.x=t.x,this.y=t.y,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this)}addScalar(t){return this.x+=t,this.y+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this)}subScalar(t){return this.x-=t,this.y-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this}multiply(t){return this.x*=t.x,this.y*=t.y,this}multiplyScalar(t){return this.x*=t,this.y*=t,this}divide(t){return this.x/=t.x,this.y/=t.y,this}divideScalar(t){return this.multiplyScalar(1/t)}applyMatrix3(t){const e=this.x,n=this.y,r=t.elements;return this.x=r[0]*e+r[3]*n+r[6],this.y=r[1]*e+r[4]*n+r[7],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this}negate(){return this.x=-this.x,this.y=-this.y,this}dot(t){return this.x*t.x+this.y*t.y}cross(t){return this.x*t.y-this.y*t.x}lengthSq(){return this.x*this.x+this.y*this.y}length(){return Math.sqrt(this.x*this.x+this.y*this.y)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)}normalize(){return this.divideScalar(this.length()||1)}angle(){return Math.atan2(-this.y,-this.x)+Math.PI}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y;return e*e+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this}equals(t){return t.x===this.x&&t.y===this.y}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this}rotateAround(t,e){const n=Math.cos(e),r=Math.sin(e),i=this.x-t.x,s=this.y-t.y;return this.x=i*n-s*r+t.x,this.y=i*r+s*n+t.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}}exports.Vector2=On,On.prototype.isVector2=!0;class zn{constructor(){this.elements=[1,0,0,0,1,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l){const c=this.elements;return c[0]=t,c[1]=r,c[2]=o,c[3]=e,c[4]=i,c[5]=a,c[6]=n,c[7]=s,c[8]=l,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],this}extractBasis(t,e,n){return t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(t){const e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[3],a=n[6],l=n[1],c=n[4],h=n[7],u=n[2],p=n[5],d=n[8],m=r[0],f=r[3],g=r[6],x=r[1],v=r[4],y=r[7],_=r[2],b=r[5],w=r[8];return i[0]=s*m+o*x+a*_,i[3]=s*f+o*v+a*b,i[6]=s*g+o*y+a*w,i[1]=l*m+c*x+h*_,i[4]=l*f+c*v+h*b,i[7]=l*g+c*y+h*w,i[2]=u*m+p*x+d*_,i[5]=u*f+p*v+d*b,i[8]=u*g+p*y+d*w,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8];return e*s*c-e*o*l-n*i*c+n*o*a+r*i*l-r*s*a}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=c*s-o*l,u=o*a-c*i,p=l*i-s*a,d=e*h+n*u+r*p;if(0===d)return this.set(0,0,0,0,0,0,0,0,0);const m=1/d;return t[0]=h*m,t[1]=(r*l-c*n)*m,t[2]=(o*n-r*s)*m,t[3]=u*m,t[4]=(c*e-r*a)*m,t[5]=(r*i-o*e)*m,t[6]=p*m,t[7]=(n*a-l*e)*m,t[8]=(s*e-n*i)*m,this}transpose(){let t;const e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){const e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,n,r,i,s,o){const a=Math.cos(i),l=Math.sin(i);return this.set(n*a,n*l,-n*(a*s+l*o)+s+t,-r*l,r*a,-r*(-l*s+a*o)+o+e,0,0,1),this}scale(t,e){const n=this.elements;return n[0]*=t,n[3]*=t,n[6]*=t,n[1]*=e,n[4]*=e,n[7]*=e,this}rotate(t){const e=Math.cos(t),n=Math.sin(t),r=this.elements,i=r[0],s=r[3],o=r[6],a=r[1],l=r[4],c=r[7];return r[0]=e*i+n*a,r[3]=e*s+n*l,r[6]=e*o+n*c,r[1]=-n*i+e*a,r[4]=-n*s+e*l,r[7]=-n*o+e*c,this}translate(t,e){const n=this.elements;return n[0]+=t*n[2],n[3]+=t*n[5],n[6]+=t*n[8],n[1]+=e*n[2],n[4]+=e*n[5],n[7]+=e*n[8],this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<9;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<9;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t}clone(){return(new this.constructor).fromArray(this.elements)}}let Gn;exports.Matrix3=zn,zn.prototype.isMatrix3=!0;const Hn={getDataURL:function(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===Gn&&(Gn=document.createElementNS("http://www.w3.org/1999/xhtml","canvas")),Gn.width=t.width,Gn.height=t.height;const n=Gn.getContext("2d");t instanceof ImageData?n.putImageData(t,0,0):n.drawImage(t,0,0,t.width,t.height),e=Gn}return e.width>2048||e.height>2048?e.toDataURL("image/jpeg",.6):e.toDataURL("image/png")}};exports.ImageUtils=Hn;let Un=0;class kn extends In{constructor(t=kn.DEFAULT_IMAGE,e=kn.DEFAULT_MAPPING,n=ct,r=ct,i=gt,s=yt,o=Nt,a=bt,l=1,c=Xe){super(),Object.defineProperty(this,"id",{value:Un++}),this.uuid=Fn.generateUUID(),this.name="",this.image=t,this.mipmaps=[],this.mapping=e,this.wrapS=n,this.wrapT=r,this.magFilter=i,this.minFilter=s,this.anisotropy=l,this.format=o,this.internalFormat=null,this.type=a,this.offset=new On(0,0),this.repeat=new On(1,1),this.center=new On(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new zn,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.encoding=c,this.version=0,this.onUpdate=null}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.image=t.image,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.encoding=t.encoding,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const n={metadata:{version:4.5,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,type:this.type,encoding:this.encoding,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(void 0!==this.image){const r=this.image;if(void 0===r.uuid&&(r.uuid=Fn.generateUUID()),!e&&void 0===t.images[r.uuid]){let e;if(Array.isArray(r)){e=[];for(let t=0,n=r.length;t<n;t++)r[t].isDataTexture?e.push(Vn(r[t].image)):e.push(Vn(r[t]))}else e=Vn(r);t.images[r.uuid]={uuid:r.uuid,url:e}}n.image=r.uuid}return e||(t.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==et)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case lt:t.x=t.x-Math.floor(t.x);break;case ct:t.x=t.x<0?0:1;break;case ht:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case lt:t.y=t.y-Math.floor(t.y);break;case ct:t.y=t.y<0?0:1;break;case ht:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&this.version++}}function Vn(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?Hn.getDataURL(t):t.data?{data:Array.prototype.slice.call(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}exports.Texture=kn,kn.DEFAULT_IMAGE=void 0,kn.DEFAULT_MAPPING=et,kn.prototype.isTexture=!0;class Wn{constructor(t=0,e=0,n=0,r=1){this.x=t,this.y=e,this.z=n,this.w=r}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,n,r){return this.x=t,this.y=e,this.z=n,this.w=r,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=this.w,s=t.elements;return this.x=s[0]*e+s[4]*n+s[8]*r+s[12]*i,this.y=s[1]*e+s[5]*n+s[9]*r+s[13]*i,this.z=s[2]*e+s[6]*n+s[10]*r+s[14]*i,this.w=s[3]*e+s[7]*n+s[11]*r+s[15]*i,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,n,r,i;const s=t.elements,o=s[0],a=s[4],l=s[8],c=s[1],h=s[5],u=s[9],p=s[2],d=s[6],m=s[10];if(Math.abs(a-c)<.01&&Math.abs(l-p)<.01&&Math.abs(u-d)<.01){if(Math.abs(a+c)<.1&&Math.abs(l+p)<.1&&Math.abs(u+d)<.1&&Math.abs(o+h+m-3)<.1)return this.set(1,0,0,0),this;e=Math.PI;const t=(o+1)/2,s=(h+1)/2,f=(m+1)/2,g=(a+c)/4,x=(l+p)/4,v=(u+d)/4;return t>s&&t>f?t<.01?(n=0,r=.707106781,i=.707106781):(r=g/(n=Math.sqrt(t)),i=x/n):s>f?s<.01?(n=.707106781,r=0,i=.707106781):(n=g/(r=Math.sqrt(s)),i=v/r):f<.01?(n=.707106781,r=.707106781,i=0):(n=x/(i=Math.sqrt(f)),r=v/i),this.set(n,r,i,e),this}let f=Math.sqrt((d-u)*(d-u)+(l-p)*(l-p)+(c-a)*(c-a));return Math.abs(f)<.001&&(f=1),this.x=(d-u)/f,this.y=(l-p)/f,this.z=(c-a)/f,this.w=Math.acos((o+h+m-1)/2),this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this.w=Math.max(t.w,Math.min(e.w,this.w)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this.w=Math.max(t,Math.min(e,this.w)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this.w=this.w<0?Math.ceil(this.w):Math.floor(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this.w=t.w+(e.w-t.w)*n,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}}exports.Vector4=Wn,Wn.prototype.isVector4=!0;class jn extends In{constructor(t,e,n){super(),this.width=t,this.height=e,this.depth=1,this.scissor=new Wn(0,0,t,e),this.scissorTest=!1,this.viewport=new Wn(0,0,t,e),n=n||{},this.texture=new kn(void 0,n.mapping,n.wrapS,n.wrapT,n.magFilter,n.minFilter,n.format,n.type,n.anisotropy,n.encoding),this.texture.image={},this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=1,this.texture.generateMipmaps=void 0!==n.generateMipmaps&&n.generateMipmaps,this.texture.minFilter=void 0!==n.minFilter?n.minFilter:gt,this.depthBuffer=void 0===n.depthBuffer||n.depthBuffer,this.stencilBuffer=void 0!==n.stencilBuffer&&n.stencilBuffer,this.depthTexture=void 0!==n.depthTexture?n.depthTexture:null}setTexture(t){t.image={width:this.width,height:this.height,depth:this.depth},this.texture=t}setSize(t,e,n=1){this.width===t&&this.height===e&&this.depth===n||(this.width=t,this.height=e,this.depth=n,this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=n,this.dispose()),this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.width=t.width,this.height=t.height,this.depth=t.depth,this.viewport.copy(t.viewport),this.texture=t.texture.clone(),this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.depthTexture=t.depthTexture,this}dispose(){this.dispatchEvent({type:"dispose"})}}exports.WebGLRenderTarget=jn,jn.prototype.isWebGLRenderTarget=!0;class qn extends jn{constructor(t,e,n){super(t,e,n),this.samples=4}copy(t){return super.copy.call(this,t),this.samples=t.samples,this}}exports.WebGLMultisampleRenderTarget=qn,qn.prototype.isWebGLMultisampleRenderTarget=!0;class Xn{constructor(t=0,e=0,n=0,r=1){this._x=t,this._y=e,this._z=n,this._w=r}static slerp(t,e,n,r){return n.copy(t).slerp(e,r)}static slerpFlat(t,e,n,r,i,s,o){let a=n[r+0],l=n[r+1],c=n[r+2],h=n[r+3];const u=i[s+0],p=i[s+1],d=i[s+2],m=i[s+3];if(0===o)return t[e+0]=a,t[e+1]=l,t[e+2]=c,void(t[e+3]=h);if(1===o)return t[e+0]=u,t[e+1]=p,t[e+2]=d,void(t[e+3]=m);if(h!==m||a!==u||l!==p||c!==d){let t=1-o;const e=a*u+l*p+c*d+h*m,n=e>=0?1:-1,r=1-e*e;if(r>Number.EPSILON){const i=Math.sqrt(r),s=Math.atan2(i,e*n);t=Math.sin(t*s)/i,o=Math.sin(o*s)/i}const i=o*n;if(a=a*t+u*i,l=l*t+p*i,c=c*t+d*i,h=h*t+m*i,t===1-o){const t=1/Math.sqrt(a*a+l*l+c*c+h*h);a*=t,l*=t,c*=t,h*=t}}t[e]=a,t[e+1]=l,t[e+2]=c,t[e+3]=h}static multiplyQuaternionsFlat(t,e,n,r,i,s){const o=n[r],a=n[r+1],l=n[r+2],c=n[r+3],h=i[s],u=i[s+1],p=i[s+2],d=i[s+3];return t[e]=o*d+c*h+a*p-l*u,t[e+1]=a*d+c*u+l*h-o*p,t[e+2]=l*d+c*p+o*u-a*h,t[e+3]=c*d-o*h-a*u-l*p,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._w=r,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e){if(!t||!t.isEuler)throw new Error("THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.");const n=t._x,r=t._y,i=t._z,s=t._order,o=Math.cos,a=Math.sin,l=o(n/2),c=o(r/2),h=o(i/2),u=a(n/2),p=a(r/2),d=a(i/2);switch(s){case"XYZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"YXZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"ZXY":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"ZYX":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"YZX":this._x=u*c*h+l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h-u*p*d;break;case"XZY":this._x=u*c*h-l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h+u*p*d;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)}return!1!==e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const n=e/2,r=Math.sin(n);return this._x=t.x*r,this._y=t.y*r,this._z=t.z*r,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,n=e[0],r=e[4],i=e[8],s=e[1],o=e[5],a=e[9],l=e[2],c=e[6],h=e[10],u=n+o+h;if(u>0){const t=.5/Math.sqrt(u+1);this._w=.25/t,this._x=(c-a)*t,this._y=(i-l)*t,this._z=(s-r)*t}else if(n>o&&n>h){const t=2*Math.sqrt(1+n-o-h);this._w=(c-a)/t,this._x=.25*t,this._y=(r+s)/t,this._z=(i+l)/t}else if(o>h){const t=2*Math.sqrt(1+o-n-h);this._w=(i-l)/t,this._x=(r+s)/t,this._y=.25*t,this._z=(a+c)/t}else{const t=2*Math.sqrt(1+h-n-o);this._w=(s-r)/t,this._x=(i+l)/t,this._y=(a+c)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let n=t.dot(e)+1;return n<1e-6?(n=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=n):(this._x=0,this._y=-t.z,this._z=t.y,this._w=n)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=n),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(Fn.clamp(this.dot(t),-1,1)))}rotateTowards(t,e){const n=this.angleTo(t);if(0===n)return this;const r=Math.min(1,e/n);return this.slerp(t,r),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t,e){return void 0!==e?(console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead."),this.multiplyQuaternions(t,e)):this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const n=t._x,r=t._y,i=t._z,s=t._w,o=e._x,a=e._y,l=e._z,c=e._w;return this._x=n*c+s*o+r*l-i*a,this._y=r*c+s*a+i*o-n*l,this._z=i*c+s*l+n*a-r*o,this._w=s*c-n*o-r*a-i*l,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const n=this._x,r=this._y,i=this._z,s=this._w;let o=s*t._w+n*t._x+r*t._y+i*t._z;if(o<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,o=-o):this.copy(t),o>=1)return this._w=s,this._x=n,this._y=r,this._z=i,this;const a=1-o*o;if(a<=Number.EPSILON){const t=1-e;return this._w=t*s+e*this._w,this._x=t*n+e*this._x,this._y=t*r+e*this._y,this._z=t*i+e*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(a),c=Math.atan2(l,o),h=Math.sin((1-e)*c)/l,u=Math.sin(e*c)/l;return this._w=s*h+this._w*u,this._x=n*h+this._x*u,this._y=r*h+this._y*u,this._z=i*h+this._z*u,this._onChangeCallback(),this}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Quaternion=Xn,Xn.prototype.isQuaternion=!0;class Yn{constructor(t=0,e=0,n=0){this.x=t,this.y=e,this.z=n}set(t,e,n){return void 0===n&&(n=this.z),this.x=t,this.y=e,this.z=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(t,e)):(this.x*=t.x,this.y*=t.y,this.z*=t.z,this)}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return t&&t.isEuler||console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order."),this.applyQuaternion(Jn.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(Jn.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[3]*n+i[6]*r,this.y=i[1]*e+i[4]*n+i[7]*r,this.z=i[2]*e+i[5]*n+i[8]*r,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=t.elements,s=1/(i[3]*e+i[7]*n+i[11]*r+i[15]);return this.x=(i[0]*e+i[4]*n+i[8]*r+i[12])*s,this.y=(i[1]*e+i[5]*n+i[9]*r+i[13])*s,this.z=(i[2]*e+i[6]*n+i[10]*r+i[14])*s,this}applyQuaternion(t){const e=this.x,n=this.y,r=this.z,i=t.x,s=t.y,o=t.z,a=t.w,l=a*e+s*r-o*n,c=a*n+o*e-i*r,h=a*r+i*n-s*e,u=-i*e-s*n-o*r;return this.x=l*a+u*-i+c*-o-h*-s,this.y=c*a+u*-s+h*-i-l*-o,this.z=h*a+u*-o+l*-s-c*-i,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[4]*n+i[8]*r,this.y=i[1]*e+i[5]*n+i[9]*r,this.z=i[2]*e+i[6]*n+i[10]*r,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this}cross(t,e){return void 0!==e?(console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(t,e)):this.crossVectors(this,t)}crossVectors(t,e){const n=t.x,r=t.y,i=t.z,s=e.x,o=e.y,a=e.z;return this.x=r*a-i*o,this.y=i*s-n*a,this.z=n*o-r*s,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const n=t.dot(this)/e;return this.copy(t).multiplyScalar(n)}projectOnPlane(t){return Zn.copy(this).projectOnVector(t),this.sub(Zn)}reflect(t){return this.sub(Zn.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const n=this.dot(t)/e;return Math.acos(Fn.clamp(n,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y,r=this.z-t.z;return e*e+n*n+r*r}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,n){const r=Math.sin(e)*t;return this.x=r*Math.sin(n),this.y=Math.cos(e)*t,this.z=r*Math.cos(n),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,n){return this.x=t*Math.sin(e),this.y=n,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),n=this.setFromMatrixColumn(t,1).length(),r=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=n,this.z=r,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}}exports.Vector3=Yn,Yn.prototype.isVector3=!0;const Zn=new Yn,Jn=new Xn;class Qn{constructor(t=new Yn(1/0,1/0,1/0),e=new Yn(-1/0,-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.length;a<l;a+=3){const l=t[a],c=t[a+1],h=t[a+2];l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromBufferAttribute(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.count;a<l;a++){const l=t.getX(a),c=t.getY(a),h=t.getZ(a);l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=$n.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}setFromObject(t){return this.makeEmpty(),this.expandByObject(t)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return void 0===t&&(console.warn("THREE.Box3: .getCenter() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box3: .getSize() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t){t.updateWorldMatrix(!1,!1);const e=t.geometry;void 0!==e&&(null===e.boundingBox&&e.computeBoundingBox(),tr.copy(e.boundingBox),tr.applyMatrix4(t.matrixWorld),this.union(tr));const n=t.children;for(let r=0,i=n.length;r<i;r++)this.expandByObject(n[r]);return this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y||t.z<this.min.z||t.z>this.max.z)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box3: .getParameter() target is now required"),e=new Yn),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y||t.max.z<this.min.z||t.min.z>this.max.z)}intersectsSphere(t){return this.clampPoint(t.center,$n),$n.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,n;return t.normal.x>0?(e=t.normal.x*this.min.x,n=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,n=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,n+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,n+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,n+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,n+=t.normal.z*this.min.z),e<=-t.constant&&n>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(ar),lr.subVectors(this.max,ar),er.subVectors(t.a,ar),nr.subVectors(t.b,ar),rr.subVectors(t.c,ar),ir.subVectors(nr,er),sr.subVectors(rr,nr),or.subVectors(er,rr);let e=[0,-ir.z,ir.y,0,-sr.z,sr.y,0,-or.z,or.y,ir.z,0,-ir.x,sr.z,0,-sr.x,or.z,0,-or.x,-ir.y,ir.x,0,-sr.y,sr.x,0,-or.y,or.x,0];return!!ur(e,er,nr,rr,lr)&&(!!ur(e=[1,0,0,0,1,0,0,0,1],er,nr,rr,lr)&&(cr.crossVectors(ir,sr),ur(e=[cr.x,cr.y,cr.z],er,nr,rr,lr)))}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box3: .clampPoint() target is now required"),e=new Yn),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return $n.copy(t).clamp(this.min,this.max).sub(t).length()}getBoundingSphere(t){return void 0===t&&console.error("THREE.Box3: .getBoundingSphere() target is now required"),this.getCenter(t.center),t.radius=.5*this.getSize($n).length(),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()?this:(Kn[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),Kn[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),Kn[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),Kn[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),Kn[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),Kn[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),Kn[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),Kn[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(Kn),this)}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box3=Qn,Qn.prototype.isBox3=!0;const Kn=[new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn],$n=new Yn,tr=new Qn,er=new Yn,nr=new Yn,rr=new Yn,ir=new Yn,sr=new Yn,or=new Yn,ar=new Yn,lr=new Yn,cr=new Yn,hr=new Yn;function ur(t,e,n,r,i){for(let s=0,o=t.length-3;s<=o;s+=3){hr.fromArray(t,s);const o=i.x*Math.abs(hr.x)+i.y*Math.abs(hr.y)+i.z*Math.abs(hr.z),a=e.dot(hr),l=n.dot(hr),c=r.dot(hr);if(Math.max(-Math.max(a,l,c),Math.min(a,l,c))>o)return!1}return!0}const pr=new Qn;class dr{constructor(t=new Yn,e=-1){this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const n=this.center;void 0!==e?n.copy(e):pr.setFromPoints(t).getCenter(n);let r=0;for(let i=0,s=t.length;i<s;i++)r=Math.max(r,n.distanceToSquared(t[i]));return this.radius=Math.sqrt(r),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const n=this.center.distanceToSquared(t);return void 0===e&&(console.warn("THREE.Sphere: .clampPoint() target is now required"),e=new Yn),e.copy(t),n>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return void 0===t&&(console.warn("THREE.Sphere: .getBoundingBox() target is now required"),t=new Qn),this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}exports.Sphere=dr;const mr=new Yn,fr=new Yn,gr=new Yn,xr=new Yn,vr=new Yn,yr=new Yn,_r=new Yn;class br{constructor(t=new Yn,e=new Yn(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return void 0===e&&(console.warn("THREE.Ray: .at() target is now required"),e=new Yn),e.copy(this.direction).multiplyScalar(t).add(this.origin)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,mr)),this}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Ray: .closestPointToPoint() target is now required"),e=new Yn),e.subVectors(t,this.origin);const n=e.dot(this.direction);return n<0?e.copy(this.origin):e.copy(this.direction).multiplyScalar(n).add(this.origin)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=mr.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(mr.copy(this.direction).multiplyScalar(e).add(this.origin),mr.distanceToSquared(t))}distanceSqToSegment(t,e,n,r){fr.copy(t).add(e).multiplyScalar(.5),gr.copy(e).sub(t).normalize(),xr.copy(this.origin).sub(fr);const i=.5*t.distanceTo(e),s=-this.direction.dot(gr),o=xr.dot(this.direction),a=-xr.dot(gr),l=xr.lengthSq(),c=Math.abs(1-s*s);let h,u,p,d;if(c>0)if(u=s*o-a,d=i*c,(h=s*a-o)>=0)if(u>=-d)if(u<=d){const t=1/c;p=(h*=t)*(h+s*(u*=t)+2*o)+u*(s*h+u+2*a)+l}else u=i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u=-i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u<=-d?p=-(h=Math.max(0,-(-s*i+o)))*h+(u=h>0?-i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l:u<=d?(h=0,p=(u=Math.min(Math.max(-i,-a),i))*(u+2*a)+l):p=-(h=Math.max(0,-(s*i+o)))*h+(u=h>0?i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l;else u=s>0?-i:i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;return n&&n.copy(this.direction).multiplyScalar(h).add(this.origin),r&&r.copy(gr).multiplyScalar(u).add(fr),p}intersectSphere(t,e){mr.subVectors(t.center,this.origin);const n=mr.dot(this.direction),r=mr.dot(mr)-n*n,i=t.radius*t.radius;if(r>i)return null;const s=Math.sqrt(i-r),o=n-s,a=n+s;return o<0&&a<0?null:o<0?this.at(a,e):this.at(o,e)}intersectsSphere(t){return this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){const e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(t.normal)+t.constant)/e;return n>=0?n:null}intersectPlane(t,e){const n=this.distanceToPlane(t);return null===n?null:this.at(n,e)}intersectsPlane(t){const e=t.distanceToPoint(this.origin);return 0===e||t.normal.dot(this.direction)*e<0}intersectBox(t,e){let n,r,i,s,o,a;const l=1/this.direction.x,c=1/this.direction.y,h=1/this.direction.z,u=this.origin;return l>=0?(n=(t.min.x-u.x)*l,r=(t.max.x-u.x)*l):(n=(t.max.x-u.x)*l,r=(t.min.x-u.x)*l),c>=0?(i=(t.min.y-u.y)*c,s=(t.max.y-u.y)*c):(i=(t.max.y-u.y)*c,s=(t.min.y-u.y)*c),n>s||i>r?null:((i>n||n!=n)&&(n=i),(s<r||r!=r)&&(r=s),h>=0?(o=(t.min.z-u.z)*h,a=(t.max.z-u.z)*h):(o=(t.max.z-u.z)*h,a=(t.min.z-u.z)*h),n>a||o>r?null:((o>n||n!=n)&&(n=o),(a<r||r!=r)&&(r=a),r<0?null:this.at(n>=0?n:r,e)))}intersectsBox(t){return null!==this.intersectBox(t,mr)}intersectTriangle(t,e,n,r,i){vr.subVectors(e,t),yr.subVectors(n,t),_r.crossVectors(vr,yr);let s,o=this.direction.dot(_r);if(o>0){if(r)return null;s=1}else{if(!(o<0))return null;s=-1,o=-o}xr.subVectors(this.origin,t);const a=s*this.direction.dot(yr.crossVectors(xr,yr));if(a<0)return null;const l=s*this.direction.dot(vr.cross(xr));if(l<0)return null;if(a+l>o)return null;const c=-s*xr.dot(_r);return c<0?null:this.at(c/o,i)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}exports.Ray=br;class wr{constructor(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l,c,h,u,p,d,m,f){const g=this.elements;return g[0]=t,g[4]=e,g[8]=n,g[12]=r,g[1]=i,g[5]=s,g[9]=o,g[13]=a,g[2]=l,g[6]=c,g[10]=h,g[14]=u,g[3]=p,g[7]=d,g[11]=m,g[15]=f,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new wr).fromArray(this.elements)}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],e[9]=n[9],e[10]=n[10],e[11]=n[11],e[12]=n[12],e[13]=n[13],e[14]=n[14],e[15]=n[15],this}copyPosition(t){const e=this.elements,n=t.elements;return e[12]=n[12],e[13]=n[13],e[14]=n[14],this}setFromMatrix3(t){const e=t.elements;return this.set(e[0],e[3],e[6],0,e[1],e[4],e[7],0,e[2],e[5],e[8],0,0,0,0,1),this}extractBasis(t,e,n){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(t,e,n){return this.set(t.x,e.x,n.x,0,t.y,e.y,n.y,0,t.z,e.z,n.z,0,0,0,0,1),this}extractRotation(t){const e=this.elements,n=t.elements,r=1/Mr.setFromMatrixColumn(t,0).length(),i=1/Mr.setFromMatrixColumn(t,1).length(),s=1/Mr.setFromMatrixColumn(t,2).length();return e[0]=n[0]*r,e[1]=n[1]*r,e[2]=n[2]*r,e[3]=0,e[4]=n[4]*i,e[5]=n[5]*i,e[6]=n[6]*i,e[7]=0,e[8]=n[8]*s,e[9]=n[9]*s,e[10]=n[10]*s,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromEuler(t){t&&t.isEuler||console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.");const e=this.elements,n=t.x,r=t.y,i=t.z,s=Math.cos(n),o=Math.sin(n),a=Math.cos(r),l=Math.sin(r),c=Math.cos(i),h=Math.sin(i);if("XYZ"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=-a*h,e[8]=l,e[1]=n+r*l,e[5]=t-i*l,e[9]=-o*a,e[2]=i-t*l,e[6]=r+n*l,e[10]=s*a}else if("YXZ"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t+i*o,e[4]=r*o-n,e[8]=s*l,e[1]=s*h,e[5]=s*c,e[9]=-o,e[2]=n*o-r,e[6]=i+t*o,e[10]=s*a}else if("ZXY"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t-i*o,e[4]=-s*h,e[8]=r+n*o,e[1]=n+r*o,e[5]=s*c,e[9]=i-t*o,e[2]=-s*l,e[6]=o,e[10]=s*a}else if("ZYX"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=r*l-n,e[8]=t*l+i,e[1]=a*h,e[5]=i*l+t,e[9]=n*l-r,e[2]=-l,e[6]=o*a,e[10]=s*a}else if("YZX"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=i-t*h,e[8]=r*h+n,e[1]=h,e[5]=s*c,e[9]=-o*c,e[2]=-l*c,e[6]=n*h+r,e[10]=t-i*h}else if("XZY"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=-h,e[8]=l*c,e[1]=t*h+i,e[5]=s*c,e[9]=n*h-r,e[2]=r*h-n,e[6]=o*c,e[10]=i*h+t}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromQuaternion(t){return this.compose(Tr,t,Er)}lookAt(t,e,n){const r=this.elements;return Rr.subVectors(t,e),0===Rr.lengthSq()&&(Rr.z=1),Rr.normalize(),Ar.crossVectors(n,Rr),0===Ar.lengthSq()&&(1===Math.abs(n.z)?Rr.x+=1e-4:Rr.z+=1e-4,Rr.normalize(),Ar.crossVectors(n,Rr)),Ar.normalize(),Lr.crossVectors(Rr,Ar),r[0]=Ar.x,r[4]=Lr.x,r[8]=Rr.x,r[1]=Ar.y,r[5]=Lr.y,r[9]=Rr.y,r[2]=Ar.z,r[6]=Lr.z,r[10]=Rr.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(t,e)):this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[4],a=n[8],l=n[12],c=n[1],h=n[5],u=n[9],p=n[13],d=n[2],m=n[6],f=n[10],g=n[14],x=n[3],v=n[7],y=n[11],_=n[15],b=r[0],w=r[4],M=r[8],S=r[12],T=r[1],E=r[5],A=r[9],L=r[13],R=r[2],C=r[6],P=r[10],D=r[14],I=r[3],B=r[7],N=r[11],F=r[15];return i[0]=s*b+o*T+a*R+l*I,i[4]=s*w+o*E+a*C+l*B,i[8]=s*M+o*A+a*P+l*N,i[12]=s*S+o*L+a*D+l*F,i[1]=c*b+h*T+u*R+p*I,i[5]=c*w+h*E+u*C+p*B,i[9]=c*M+h*A+u*P+p*N,i[13]=c*S+h*L+u*D+p*F,i[2]=d*b+m*T+f*R+g*I,i[6]=d*w+m*E+f*C+g*B,i[10]=d*M+m*A+f*P+g*N,i[14]=d*S+m*L+f*D+g*F,i[3]=x*b+v*T+y*R+_*I,i[7]=x*w+v*E+y*C+_*B,i[11]=x*M+v*A+y*P+_*N,i[15]=x*S+v*L+y*D+_*F,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[4],r=t[8],i=t[12],s=t[1],o=t[5],a=t[9],l=t[13],c=t[2],h=t[6],u=t[10],p=t[14];return t[3]*(+i*a*h-r*l*h-i*o*u+n*l*u+r*o*p-n*a*p)+t[7]*(+e*a*p-e*l*u+i*s*u-r*s*p+r*l*c-i*a*c)+t[11]*(+e*l*h-e*o*p-i*s*h+n*s*p+i*o*c-n*l*c)+t[15]*(-r*o*c-e*a*h+e*o*u+r*s*h-n*s*u+n*a*c)}transpose(){const t=this.elements;let e;return e=t[1],t[1]=t[4],t[4]=e,e=t[2],t[2]=t[8],t[8]=e,e=t[6],t[6]=t[9],t[9]=e,e=t[3],t[3]=t[12],t[12]=e,e=t[7],t[7]=t[13],t[13]=e,e=t[11],t[11]=t[14],t[14]=e,this}setPosition(t,e,n){const r=this.elements;return t.isVector3?(r[12]=t.x,r[13]=t.y,r[14]=t.z):(r[12]=t,r[13]=e,r[14]=n),this}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=t[9],u=t[10],p=t[11],d=t[12],m=t[13],f=t[14],g=t[15],x=h*f*l-m*u*l+m*a*p-o*f*p-h*a*g+o*u*g,v=d*u*l-c*f*l-d*a*p+s*f*p+c*a*g-s*u*g,y=c*m*l-d*h*l+d*o*p-s*m*p-c*o*g+s*h*g,_=d*h*a-c*m*a-d*o*u+s*m*u+c*o*f-s*h*f,b=e*x+n*v+r*y+i*_;if(0===b)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const w=1/b;return t[0]=x*w,t[1]=(m*u*i-h*f*i-m*r*p+n*f*p+h*r*g-n*u*g)*w,t[2]=(o*f*i-m*a*i+m*r*l-n*f*l-o*r*g+n*a*g)*w,t[3]=(h*a*i-o*u*i-h*r*l+n*u*l+o*r*p-n*a*p)*w,t[4]=v*w,t[5]=(c*f*i-d*u*i+d*r*p-e*f*p-c*r*g+e*u*g)*w,t[6]=(d*a*i-s*f*i-d*r*l+e*f*l+s*r*g-e*a*g)*w,t[7]=(s*u*i-c*a*i+c*r*l-e*u*l-s*r*p+e*a*p)*w,t[8]=y*w,t[9]=(d*h*i-c*m*i-d*n*p+e*m*p+c*n*g-e*h*g)*w,t[10]=(s*m*i-d*o*i+d*n*l-e*m*l-s*n*g+e*o*g)*w,t[11]=(c*o*i-s*h*i-c*n*l+e*h*l+s*n*p-e*o*p)*w,t[12]=_*w,t[13]=(c*m*r-d*h*r+d*n*u-e*m*u-c*n*f+e*h*f)*w,t[14]=(d*o*r-s*m*r-d*n*a+e*m*a+s*n*f-e*o*f)*w,t[15]=(s*h*r-c*o*r+c*n*a-e*h*a-s*n*u+e*o*u)*w,this}scale(t){const e=this.elements,n=t.x,r=t.y,i=t.z;return e[0]*=n,e[4]*=r,e[8]*=i,e[1]*=n,e[5]*=r,e[9]*=i,e[2]*=n,e[6]*=r,e[10]*=i,e[3]*=n,e[7]*=r,e[11]*=i,this}getMaxScaleOnAxis(){const t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],n=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],r=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,n,r))}makeTranslation(t,e,n){return this.set(1,0,0,t,0,1,0,e,0,0,1,n,0,0,0,1),this}makeRotationX(t){const e=Math.cos(t),n=Math.sin(t);return this.set(1,0,0,0,0,e,-n,0,0,n,e,0,0,0,0,1),this}makeRotationY(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,0,n,0,0,1,0,0,-n,0,e,0,0,0,0,1),this}makeRotationZ(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,-n,0,0,n,e,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(t,e){const n=Math.cos(e),r=Math.sin(e),i=1-n,s=t.x,o=t.y,a=t.z,l=i*s,c=i*o;return this.set(l*s+n,l*o-r*a,l*a+r*o,0,l*o+r*a,c*o+n,c*a-r*s,0,l*a-r*o,c*a+r*s,i*a*a+n,0,0,0,0,1),this}makeScale(t,e,n){return this.set(t,0,0,0,0,e,0,0,0,0,n,0,0,0,0,1),this}makeShear(t,e,n){return this.set(1,e,n,0,t,1,n,0,t,e,1,0,0,0,0,1),this}compose(t,e,n){const r=this.elements,i=e._x,s=e._y,o=e._z,a=e._w,l=i+i,c=s+s,h=o+o,u=i*l,p=i*c,d=i*h,m=s*c,f=s*h,g=o*h,x=a*l,v=a*c,y=a*h,_=n.x,b=n.y,w=n.z;return r[0]=(1-(m+g))*_,r[1]=(p+y)*_,r[2]=(d-v)*_,r[3]=0,r[4]=(p-y)*b,r[5]=(1-(u+g))*b,r[6]=(f+x)*b,r[7]=0,r[8]=(d+v)*w,r[9]=(f-x)*w,r[10]=(1-(u+m))*w,r[11]=0,r[12]=t.x,r[13]=t.y,r[14]=t.z,r[15]=1,this}decompose(t,e,n){const r=this.elements;let i=Mr.set(r[0],r[1],r[2]).length();const s=Mr.set(r[4],r[5],r[6]).length(),o=Mr.set(r[8],r[9],r[10]).length();this.determinant()<0&&(i=-i),t.x=r[12],t.y=r[13],t.z=r[14],Sr.copy(this);const a=1/i,l=1/s,c=1/o;return Sr.elements[0]*=a,Sr.elements[1]*=a,Sr.elements[2]*=a,Sr.elements[4]*=l,Sr.elements[5]*=l,Sr.elements[6]*=l,Sr.elements[8]*=c,Sr.elements[9]*=c,Sr.elements[10]*=c,e.setFromRotationMatrix(Sr),n.x=i,n.y=s,n.z=o,this}makePerspective(t,e,n,r,i,s){void 0===s&&console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.");const o=this.elements,a=2*i/(e-t),l=2*i/(n-r),c=(e+t)/(e-t),h=(n+r)/(n-r),u=-(s+i)/(s-i),p=-2*s*i/(s-i);return o[0]=a,o[4]=0,o[8]=c,o[12]=0,o[1]=0,o[5]=l,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=u,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(t,e,n,r,i,s){const o=this.elements,a=1/(e-t),l=1/(n-r),c=1/(s-i),h=(e+t)*a,u=(n+r)*l,p=(s+i)*c;return o[0]=2*a,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*l,o[9]=0,o[13]=-u,o[2]=0,o[6]=0,o[10]=-2*c,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<16;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<16;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t[e+9]=n[9],t[e+10]=n[10],t[e+11]=n[11],t[e+12]=n[12],t[e+13]=n[13],t[e+14]=n[14],t[e+15]=n[15],t}}exports.Matrix4=wr,wr.prototype.isMatrix4=!0;const Mr=new Yn,Sr=new wr,Tr=new Yn(0,0,0),Er=new Yn(1,1,1),Ar=new Yn,Lr=new Yn,Rr=new Yn,Cr=new wr,Pr=new Xn;class Dr{constructor(t=0,e=0,n=0,r=Dr.DefaultOrder){this._x=t,this._y=e,this._z=n,this._order=r}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._order=r||this._order,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e,n){const r=Fn.clamp,i=t.elements,s=i[0],o=i[4],a=i[8],l=i[1],c=i[5],h=i[9],u=i[2],p=i[6],d=i[10];switch(e=e||this._order){case"XYZ":this._y=Math.asin(r(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-h,d),this._z=Math.atan2(-o,s)):(this._x=Math.atan2(p,c),this._z=0);break;case"YXZ":this._x=Math.asin(-r(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(l,c)):(this._y=Math.atan2(-u,s),this._z=0);break;case"ZXY":this._x=Math.asin(r(p,-1,1)),Math.abs(p)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-o,c)):(this._y=0,this._z=Math.atan2(l,s));break;case"ZYX":this._y=Math.asin(-r(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(p,d),this._z=Math.atan2(l,s)):(this._x=0,this._z=Math.atan2(-o,c));break;case"YZX":this._z=Math.asin(r(l,-1,1)),Math.abs(l)<.9999999?(this._x=Math.atan2(-h,c),this._y=Math.atan2(-u,s)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-r(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(p,c),this._y=Math.atan2(a,s)):(this._x=Math.atan2(-h,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!1!==n&&this._onChangeCallback(),this}setFromQuaternion(t,e,n){return Cr.makeRotationFromQuaternion(t),this.setFromRotationMatrix(Cr,e,n)}setFromVector3(t,e){return this.set(t.x,t.y,t.z,e||this._order)}reorder(t){return Pr.setFromEuler(this),this.setFromQuaternion(Pr,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t}toVector3(t){return t?t.set(this._x,this._y,this._z):new Yn(this._x,this._y,this._z)}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Euler=Dr,Dr.prototype.isEuler=!0,Dr.DefaultOrder="XYZ",Dr.RotationOrders=["XYZ","YZX","ZXY","XZY","YXZ","ZYX"];class Ir{constructor(){this.mask=1}set(t){this.mask=1<<t|0}enable(t){this.mask|=1<<t|0}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t|0}disable(t){this.mask&=~(1<<t|0)}disableAll(){this.mask=0}test(t){return 0!=(this.mask&t.mask)}}exports.Layers=Ir;let Br=0;const Nr=new Yn,Fr=new Xn,Or=new wr,zr=new Yn,Gr=new Yn,Hr=new Yn,Ur=new Xn,kr=new Yn(1,0,0),Vr=new Yn(0,1,0),Wr=new Yn(0,0,1),jr={type:"added"},qr={type:"removed"};function Xr(){Object.defineProperty(this,"id",{value:Br++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Xr.DefaultUp.clone();const t=new Yn,e=new Dr,n=new Xn,r=new Yn(1,1,1);e._onChange(function(){n.setFromEuler(e,!1)}),n._onChange(function(){e.setFromQuaternion(n,void 0,!1)}),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:n},scale:{configurable:!0,enumerable:!0,value:r},modelViewMatrix:{value:new wr},normalMatrix:{value:new zn}}),this.matrix=new wr,this.matrixWorld=new wr,this.matrixAutoUpdate=Xr.DefaultMatrixAutoUpdate,this.matrixWorldNeedsUpdate=!1,this.layers=new Ir,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}Xr.DefaultUp=new Yn(0,1,0),Xr.DefaultMatrixAutoUpdate=!0,Xr.prototype=Object.assign(Object.create(In.prototype),{constructor:Xr,isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix4:function(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(t){return this.quaternion.premultiply(t),this},setRotationFromAxisAngle:function(t,e){this.quaternion.setFromAxisAngle(t,e)},setRotationFromEuler:function(t){this.quaternion.setFromEuler(t,!0)},setRotationFromMatrix:function(t){this.quaternion.setFromRotationMatrix(t)},setRotationFromQuaternion:function(t){this.quaternion.copy(t)},rotateOnAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.multiply(Fr),this},rotateOnWorldAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.premultiply(Fr),this},rotateX:function(t){return this.rotateOnAxis(kr,t)},rotateY:function(t){return this.rotateOnAxis(Vr,t)},rotateZ:function(t){return this.rotateOnAxis(Wr,t)},translateOnAxis:function(t,e){return Nr.copy(t).applyQuaternion(this.quaternion),this.position.add(Nr.multiplyScalar(e)),this},translateX:function(t){return this.translateOnAxis(kr,t)},translateY:function(t){return this.translateOnAxis(Vr,t)},translateZ:function(t){return this.translateOnAxis(Wr,t)},localToWorld:function(t){return t.applyMatrix4(this.matrixWorld)},worldToLocal:function(t){return t.applyMatrix4(Or.copy(this.matrixWorld).invert())},lookAt:function(t,e,n){t.isVector3?zr.copy(t):zr.set(t,e,n);const r=this.parent;this.updateWorldMatrix(!0,!1),Gr.setFromMatrixPosition(this.matrixWorld),this.isCamera||this.isLight?Or.lookAt(Gr,zr,this.up):Or.lookAt(zr,Gr,this.up),this.quaternion.setFromRotationMatrix(Or),r&&(Or.extractRotation(r.matrixWorld),Fr.setFromRotationMatrix(Or),this.quaternion.premultiply(Fr.invert()))},add:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.add(arguments[t]);return this}return t===this?(console.error("THREE.Object3D.add: object can't be added as a child of itself.",t),this):(t&&t.isObject3D?(null!==t.parent&&t.parent.remove(t),t.parent=this,this.children.push(t),t.dispatchEvent(jr)):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t),this)},remove:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.remove(arguments[t]);return this}const e=this.children.indexOf(t);return-1!==e&&(t.parent=null,this.children.splice(e,1),t.dispatchEvent(qr)),this},clear:function(){for(let t=0;t<this.children.length;t++){const e=this.children[t];e.parent=null,e.dispatchEvent(qr)}return this.children.length=0,this},attach:function(t){return this.updateWorldMatrix(!0,!1),Or.copy(this.matrixWorld).invert(),null!==t.parent&&(t.parent.updateWorldMatrix(!0,!1),Or.multiply(t.parent.matrixWorld)),t.applyMatrix4(Or),this.add(t),t.updateWorldMatrix(!1,!0),this},getObjectById:function(t){return this.getObjectByProperty("id",t)},getObjectByName:function(t){return this.getObjectByProperty("name",t)},getObjectByProperty:function(t,e){if(this[t]===e)return this;for(let n=0,r=this.children.length;n<r;n++){const r=this.children[n].getObjectByProperty(t,e);if(void 0!==r)return r}},getWorldPosition:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldPosition() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),t.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldQuaternion() target is now required"),t=new Xn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,t,Hr),t},getWorldScale:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldScale() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,Ur,t),t},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Object3D: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(e[8],e[9],e[10]).normalize()},raycast:function(){},traverse:function(t){t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverse(t)},traverseVisible:function(t){if(!1===this.visible)return;t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverseVisible(t)},traverseAncestors:function(t){const e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))},updateMatrix:function(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,t=!0);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].updateMatrixWorld(t)},updateWorldMatrix:function(t,e){const n=this.parent;if(!0===t&&null!==n&&n.updateWorldMatrix(!0,!1),this.matrixAutoUpdate&&this.updateMatrix(),null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),!0===e){const t=this.children;for(let e=0,n=t.length;e<n;e++)t[e].updateWorldMatrix(!1,!0)}},toJSON:function(t){const e=void 0===t||"string"==typeof t,n={};e&&(t={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{}},n.metadata={version:4.5,type:"Object",generator:"Object3D.toJSON"});const r={};function i(e,n){return void 0===e[n.uuid]&&(e[n.uuid]=n.toJSON(t)),n.uuid}if(r.uuid=this.uuid,r.type=this.type,""!==this.name&&(r.name=this.name),!0===this.castShadow&&(r.castShadow=!0),!0===this.receiveShadow&&(r.receiveShadow=!0),!1===this.visible&&(r.visible=!1),!1===this.frustumCulled&&(r.frustumCulled=!1),0!==this.renderOrder&&(r.renderOrder=this.renderOrder),"{}"!==JSON.stringify(this.userData)&&(r.userData=this.userData),r.layers=this.layers.mask,r.matrix=this.matrix.toArray(),!1===this.matrixAutoUpdate&&(r.matrixAutoUpdate=!1),this.isInstancedMesh&&(r.type="InstancedMesh",r.count=this.count,r.instanceMatrix=this.instanceMatrix.toJSON()),this.isMesh||this.isLine||this.isPoints){r.geometry=i(t.geometries,this.geometry);const e=this.geometry.parameters;if(void 0!==e&&void 0!==e.shapes){const n=e.shapes;if(Array.isArray(n))for(let e=0,r=n.length;e<r;e++){const r=n[e];i(t.shapes,r)}else i(t.shapes,n)}}if(this.isSkinnedMesh&&(r.bindMode=this.bindMode,r.bindMatrix=this.bindMatrix.toArray(),void 0!==this.skeleton&&(i(t.skeletons,this.skeleton),r.skeleton=this.skeleton.uuid)),void 0!==this.material)if(Array.isArray(this.material)){const e=[];for(let n=0,r=this.material.length;n<r;n++)e.push(i(t.materials,this.material[n]));r.material=e}else r.material=i(t.materials,this.material);if(this.children.length>0){r.children=[];for(let e=0;e<this.children.length;e++)r.children.push(this.children[e].toJSON(t).object)}if(this.animations.length>0){r.animations=[];for(let e=0;e<this.animations.length;e++){const n=this.animations[e];r.animations.push(i(t.animations,n))}}if(e){const e=s(t.geometries),r=s(t.materials),i=s(t.textures),o=s(t.images),a=s(t.shapes),l=s(t.skeletons),c=s(t.animations);e.length>0&&(n.geometries=e),r.length>0&&(n.materials=r),i.length>0&&(n.textures=i),o.length>0&&(n.images=o),a.length>0&&(n.shapes=a),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c)}return n.object=r,n;function s(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}},clone:function(t){return(new this.constructor).copy(this,t)},copy:function(t,e=!0){if(this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.rotation.order=t.rotation.order,this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(let n=0;n<t.children.length;n++){const e=t.children[n];this.add(e.clone())}return this}});const Yr=new Yn,Zr=new Yn,Jr=new zn;class Qr{constructor(t=new Yn(1,0,0),e=0){this.normal=t,this.constant=e}set(t,e){return this.normal.copy(t),this.constant=e,this}setComponents(t,e,n,r){return this.normal.set(t,e,n),this.constant=r,this}setFromNormalAndCoplanarPoint(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this}setFromCoplanarPoints(t,e,n){const r=Yr.subVectors(n,e).cross(Zr.subVectors(t,e)).normalize();return this.setFromNormalAndCoplanarPoint(r,t),this}copy(t){return this.normal.copy(t.normal),this.constant=t.constant,this}normalize(){const t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(t){return this.normal.dot(t)+this.constant}distanceToSphere(t){return this.distanceToPoint(t.center)-t.radius}projectPoint(t,e){return void 0===e&&(console.warn("THREE.Plane: .projectPoint() target is now required"),e=new Yn),e.copy(this.normal).multiplyScalar(-this.distanceToPoint(t)).add(t)}intersectLine(t,e){void 0===e&&(console.warn("THREE.Plane: .intersectLine() target is now required"),e=new Yn);const n=t.delta(Yr),r=this.normal.dot(n);if(0===r)return 0===this.distanceToPoint(t.start)?e.copy(t.start):void 0;const i=-(t.start.dot(this.normal)+this.constant)/r;return i<0||i>1?void 0:e.copy(n).multiplyScalar(i).add(t.start)}intersectsLine(t){const e=this.distanceToPoint(t.start),n=this.distanceToPoint(t.end);return e<0&&n>0||n<0&&e>0}intersectsBox(t){return t.intersectsPlane(this)}intersectsSphere(t){return t.intersectsPlane(this)}coplanarPoint(t){return void 0===t&&(console.warn("THREE.Plane: .coplanarPoint() target is now required"),t=new Yn),t.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(t,e){const n=e||Jr.getNormalMatrix(t),r=this.coplanarPoint(Yr).applyMatrix4(t),i=this.normal.applyMatrix3(n).normalize();return this.constant=-r.dot(i),this}translate(t){return this.constant-=t.dot(this.normal),this}equals(t){return t.normal.equals(this.normal)&&t.constant===this.constant}clone(){return(new this.constructor).copy(this)}}exports.Plane=Qr,Qr.prototype.isPlane=!0;const Kr=new Yn,$r=new Yn,ti=new Yn,ei=new Yn,ni=new Yn,ri=new Yn,ii=new Yn,si=new Yn,oi=new Yn,ai=new Yn;class li{constructor(t=new Yn,e=new Yn,n=new Yn){this.a=t,this.b=e,this.c=n}static getNormal(t,e,n,r){void 0===r&&(console.warn("THREE.Triangle: .getNormal() target is now required"),r=new Yn),r.subVectors(n,e),Kr.subVectors(t,e),r.cross(Kr);const i=r.lengthSq();return i>0?r.multiplyScalar(1/Math.sqrt(i)):r.set(0,0,0)}static getBarycoord(t,e,n,r,i){Kr.subVectors(r,e),$r.subVectors(n,e),ti.subVectors(t,e);const s=Kr.dot(Kr),o=Kr.dot($r),a=Kr.dot(ti),l=$r.dot($r),c=$r.dot(ti),h=s*l-o*o;if(void 0===i&&(console.warn("THREE.Triangle: .getBarycoord() target is now required"),i=new Yn),0===h)return i.set(-2,-1,-1);const u=1/h,p=(l*a-o*c)*u,d=(s*c-o*a)*u;return i.set(1-p-d,d,p)}static containsPoint(t,e,n,r){return this.getBarycoord(t,e,n,r,ei),ei.x>=0&&ei.y>=0&&ei.x+ei.y<=1}static getUV(t,e,n,r,i,s,o,a){return this.getBarycoord(t,e,n,r,ei),a.set(0,0),a.addScaledVector(i,ei.x),a.addScaledVector(s,ei.y),a.addScaledVector(o,ei.z),a}static isFrontFacing(t,e,n,r){return Kr.subVectors(n,e),$r.subVectors(t,e),Kr.cross($r).dot(r)<0}set(t,e,n){return this.a.copy(t),this.b.copy(e),this.c.copy(n),this}setFromPointsAndIndices(t,e,n,r){return this.a.copy(t[e]),this.b.copy(t[n]),this.c.copy(t[r]),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this}getArea(){return Kr.subVectors(this.c,this.b),$r.subVectors(this.a,this.b),.5*Kr.cross($r).length()}getMidpoint(t){return void 0===t&&(console.warn("THREE.Triangle: .getMidpoint() target is now required"),t=new Yn),t.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(t){return li.getNormal(this.a,this.b,this.c,t)}getPlane(t){return void 0===t&&(console.warn("THREE.Triangle: .getPlane() target is now required"),t=new Qr),t.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(t,e){return li.getBarycoord(t,this.a,this.b,this.c,e)}getUV(t,e,n,r,i){return li.getUV(t,this.a,this.b,this.c,e,n,r,i)}containsPoint(t){return li.containsPoint(t,this.a,this.b,this.c)}isFrontFacing(t){return li.isFrontFacing(this.a,this.b,this.c,t)}intersectsBox(t){return t.intersectsTriangle(this)}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Triangle: .closestPointToPoint() target is now required"),e=new Yn);const n=this.a,r=this.b,i=this.c;let s,o;ni.subVectors(r,n),ri.subVectors(i,n),si.subVectors(t,n);const a=ni.dot(si),l=ri.dot(si);if(a<=0&&l<=0)return e.copy(n);oi.subVectors(t,r);const c=ni.dot(oi),h=ri.dot(oi);if(c>=0&&h<=c)return e.copy(r);const u=a*h-c*l;if(u<=0&&a>=0&&c<=0)return s=a/(a-c),e.copy(n).addScaledVector(ni,s);ai.subVectors(t,i);const p=ni.dot(ai),d=ri.dot(ai);if(d>=0&&p<=d)return e.copy(i);const m=p*l-a*d;if(m<=0&&l>=0&&d<=0)return o=l/(l-d),e.copy(n).addScaledVector(ri,o);const f=c*d-p*h;if(f<=0&&h-c>=0&&p-d>=0)return ii.subVectors(i,r),o=(h-c)/(h-c+(p-d)),e.copy(r).addScaledVector(ii,o);const g=1/(f+m+u);return s=m*g,o=u*g,e.copy(n).addScaledVector(ni,s).addScaledVector(ri,o)}equals(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}exports.Triangle=li;let ci=0;function hi(){Object.defineProperty(this,"id",{value:ci++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Material",this.fog=!0,this.blending=x,this.side=u,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.blendSrc=P,this.blendDst=D,this.blendEquation=w,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=U,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=bn,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=an,this.stencilZFail=an,this.stencilZPass=an,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaTest=0,this.premultipliedAlpha=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0}hi.prototype=Object.assign(Object.create(In.prototype),{constructor:hi,isMaterial:!0,onBeforeCompile:function(){},customProgramCacheKey:function(){return this.onBeforeCompile.toString()},setValues:function(t){if(void 0!==t)for(const e in t){const n=t[e];if(void 0===n){console.warn("THREE.Material: '"+e+"' parameter is undefined.");continue}if("shading"===e){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===n;continue}const r=this[e];void 0!==r?r&&r.isColor?r.set(n):r&&r.isVector3&&n&&n.isVector3?r.copy(n):this[e]=n:console.warn("THREE."+this.type+": '"+e+"' is not a property of this material.")}},toJSON:function(t){const e=void 0===t||"string"==typeof t;e&&(t={textures:{},images:{}});const n={metadata:{version:4.5,type:"Material",generator:"Material.toJSON"}};function r(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),this.sheen&&this.sheen.isColor&&(n.sheen=this.sheen.getHex()),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(t).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(t).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(t).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(t).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(t).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(t).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(t).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(t).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(t).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(t).uuid,n.reflectivity=this.reflectivity,n.refractionRatio=this.refractionRatio,void 0!==this.combine&&(n.combine=this.combine),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity)),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.size&&(n.size=this.size),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),this.blending!==x&&(n.blending=this.blending),this.side!==u&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.morphTargets&&(n.morphTargets=!0),!0===this.morphNormals&&(n.morphNormals=!0),!0===this.skinning&&(n.skinning=!0),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),"{}"!==JSON.stringify(this.userData)&&(n.userData=this.userData),e){const e=r(t.textures),i=r(t.images);e.length>0&&(n.textures=e),i.length>0&&(n.images=i)}return n},clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.name=t.name,this.fog=t.fog,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;const e=t.clippingPlanes;let n=null;if(null!==e){const t=e.length;n=new Array(t);for(let r=0;r!==t;++r)n[r]=e[r].clone()}return this.clippingPlanes=n,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.premultipliedAlpha=t.premultipliedAlpha,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this},dispose:function(){this.dispatchEvent({type:"dispose"})}}),Object.defineProperty(hi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}});const ui={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},pi={h:0,s:0,l:0},di={h:0,s:0,l:0};function mi(t,e,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?t+6*(e-t)*n:n<.5?e:n<2/3?t+6*(e-t)*(2/3-n):t}function fi(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}function gi(t){return t<.0031308?12.92*t:1.055*Math.pow(t,.41666)-.055}class xi{constructor(t,e,n){return void 0===e&&void 0===n?this.set(t):this.setRGB(t,e,n)}set(t){return t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t),this}setScalar(t){return this.r=t,this.g=t,this.b=t,this}setHex(t){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,this}setRGB(t,e,n){return this.r=t,this.g=e,this.b=n,this}setHSL(t,e,n){if(t=Fn.euclideanModulo(t,1),e=Fn.clamp(e,0,1),n=Fn.clamp(n,0,1),0===e)this.r=this.g=this.b=n;else{const r=n<=.5?n*(1+e):n+e-n*e,i=2*n-r;this.r=mi(i,r,t+1/3),this.g=mi(i,r,t),this.b=mi(i,r,t-1/3)}return this}setStyle(t){function e(e){void 0!==e&&parseFloat(e)<1&&console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")}let n;if(n=/^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(t)){let t;const r=n[1],i=n[2];switch(r){case"rgb":case"rgba":if(t=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(255,parseInt(t[1],10))/255,this.g=Math.min(255,parseInt(t[2],10))/255,this.b=Math.min(255,parseInt(t[3],10))/255,e(t[4]),this;if(t=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(100,parseInt(t[1],10))/100,this.g=Math.min(100,parseInt(t[2],10))/100,this.b=Math.min(100,parseInt(t[3],10))/100,e(t[4]),this;break;case"hsl":case"hsla":if(t=/^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i)){const n=parseFloat(t[1])/360,r=parseInt(t[2],10)/100,i=parseInt(t[3],10)/100;return e(t[4]),this.setHSL(n,r,i)}}}else if(n=/^\#([A-Fa-f\d]+)$/.exec(t)){const t=n[1],e=t.length;if(3===e)return this.r=parseInt(t.charAt(0)+t.charAt(0),16)/255,this.g=parseInt(t.charAt(1)+t.charAt(1),16)/255,this.b=parseInt(t.charAt(2)+t.charAt(2),16)/255,this;if(6===e)return this.r=parseInt(t.charAt(0)+t.charAt(1),16)/255,this.g=parseInt(t.charAt(2)+t.charAt(3),16)/255,this.b=parseInt(t.charAt(4)+t.charAt(5),16)/255,this}return t&&t.length>0?this.setColorName(t):this}setColorName(t){const e=ui[t];return void 0!==e?this.setHex(e):console.warn("THREE.Color: Unknown color "+t),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(t){return this.r=t.r,this.g=t.g,this.b=t.b,this}copyGammaToLinear(t,e=2){return this.r=Math.pow(t.r,e),this.g=Math.pow(t.g,e),this.b=Math.pow(t.b,e),this}copyLinearToGamma(t,e=2){const n=e>0?1/e:1;return this.r=Math.pow(t.r,n),this.g=Math.pow(t.g,n),this.b=Math.pow(t.b,n),this}convertGammaToLinear(t){return this.copyGammaToLinear(this,t),this}convertLinearToGamma(t){return this.copyLinearToGamma(this,t),this}copySRGBToLinear(t){return this.r=fi(t.r),this.g=fi(t.g),this.b=fi(t.b),this}copyLinearToSRGB(t){return this.r=gi(t.r),this.g=gi(t.g),this.b=gi(t.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(){return 255*this.r<<16^255*this.g<<8^255*this.b<<0}getHexString(){return("000000"+this.getHex().toString(16)).slice(-6)}getHSL(t){void 0===t&&(console.warn("THREE.Color: .getHSL() target is now required"),t={h:0,s:0,l:0});const e=this.r,n=this.g,r=this.b,i=Math.max(e,n,r),s=Math.min(e,n,r);let o,a;const l=(s+i)/2;if(s===i)o=0,a=0;else{const t=i-s;switch(a=l<=.5?t/(i+s):t/(2-i-s),i){case e:o=(n-r)/t+(n<r?6:0);break;case n:o=(r-e)/t+2;break;case r:o=(e-n)/t+4}o/=6}return t.h=o,t.s=a,t.l=l,t}getStyle(){return"rgb("+(255*this.r|0)+","+(255*this.g|0)+","+(255*this.b|0)+")"}offsetHSL(t,e,n){return this.getHSL(pi),pi.h+=t,pi.s+=e,pi.l+=n,this.setHSL(pi.h,pi.s,pi.l),this}add(t){return this.r+=t.r,this.g+=t.g,this.b+=t.b,this}addColors(t,e){return this.r=t.r+e.r,this.g=t.g+e.g,this.b=t.b+e.b,this}addScalar(t){return this.r+=t,this.g+=t,this.b+=t,this}sub(t){return this.r=Math.max(0,this.r-t.r),this.g=Math.max(0,this.g-t.g),this.b=Math.max(0,this.b-t.b),this}multiply(t){return this.r*=t.r,this.g*=t.g,this.b*=t.b,this}multiplyScalar(t){return this.r*=t,this.g*=t,this.b*=t,this}lerp(t,e){return this.r+=(t.r-this.r)*e,this.g+=(t.g-this.g)*e,this.b+=(t.b-this.b)*e,this}lerpColors(t,e,n){return this.r=t.r+(e.r-t.r)*n,this.g=t.g+(e.g-t.g)*n,this.b=t.b+(e.b-t.b)*n,this}lerpHSL(t,e){this.getHSL(pi),t.getHSL(di);const n=Fn.lerp(pi.h,di.h,e),r=Fn.lerp(pi.s,di.s,e),i=Fn.lerp(pi.l,di.l,e);return this.setHSL(n,r,i),this}equals(t){return t.r===this.r&&t.g===this.g&&t.b===this.b}fromArray(t,e=0){return this.r=t[e],this.g=t[e+1],this.b=t[e+2],this}toArray(t=[],e=0){return t[e]=this.r,t[e+1]=this.g,t[e+2]=this.b,t}fromBufferAttribute(t,e){return this.r=t.getX(e),this.g=t.getY(e),this.b=t.getZ(e),!0===t.normalized&&(this.r/=255,this.g/=255,this.b/=255),this}toJSON(){return this.getHex()}}exports.Color=xi,xi.NAMES=ui,xi.prototype.isColor=!0,xi.prototype.r=1,xi.prototype.g=1,xi.prototype.b=1;class vi extends hi{constructor(t){super(),this.type="MeshBasicMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this}}exports.MeshBasicMaterial=vi,vi.prototype.isMeshBasicMaterial=!0;const yi=new Yn,_i=new On;function bi(t,e,n){if(Array.isArray(t))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.name="",this.array=t,this.itemSize=e,this.count=void 0!==t?t.length/e:0,this.normalized=!0===n,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0}function wi(t,e,n){bi.call(this,new Int8Array(t),e,n)}function Mi(t,e,n){bi.call(this,new Uint8Array(t),e,n)}function Si(t,e,n){bi.call(this,new Uint8ClampedArray(t),e,n)}function Ti(t,e,n){bi.call(this,new Int16Array(t),e,n)}function Ei(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ai(t,e,n){bi.call(this,new Int32Array(t),e,n)}function Li(t,e,n){bi.call(this,new Uint32Array(t),e,n)}function Ri(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ci(t,e,n){bi.call(this,new Float32Array(t),e,n)}function Pi(t,e,n){bi.call(this,new Float64Array(t),e,n)}function Di(t){if(0===t.length)return-1/0;let e=t[0];for(let n=1,r=t.length;n<r;++n)t[n]>e&&(e=t[n]);return e}Object.defineProperty(bi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(bi.prototype,{isBufferAttribute:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.itemSize,n*=e.itemSize;for(let r=0,i=this.itemSize;r<i;r++)this.array[t+r]=e.array[n+r];return this},copyArray:function(t){return this.array.set(t),this},copyColorsArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",r),i=new xi),e[n++]=i.r,e[n++]=i.g,e[n++]=i.b}return this},copyVector2sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",r),i=new On),e[n++]=i.x,e[n++]=i.y}return this},copyVector3sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",r),i=new Yn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z}return this},copyVector4sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",r),i=new Wn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z,e[n++]=i.w}return this},applyMatrix3:function(t){if(2===this.itemSize)for(let e=0,n=this.count;e<n;e++)_i.fromBufferAttribute(this,e),_i.applyMatrix3(t),this.setXY(e,_i.x,_i.y);else if(3===this.itemSize)for(let e=0,n=this.count;e<n;e++)yi.fromBufferAttribute(this,e),yi.applyMatrix3(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyMatrix4:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyMatrix4(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyNormalMatrix:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyNormalMatrix(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},transformDirection:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.transformDirection(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},set:function(t,e=0){return this.array.set(t,e),this},getX:function(t){return this.array[t*this.itemSize]},setX:function(t,e){return this.array[t*this.itemSize]=e,this},getY:function(t){return this.array[t*this.itemSize+1]},setY:function(t,e){return this.array[t*this.itemSize+1]=e,this},getZ:function(t){return this.array[t*this.itemSize+2]},setZ:function(t,e){return this.array[t*this.itemSize+2]=e,this},getW:function(t){return this.array[t*this.itemSize+3]},setW:function(t,e){return this.array[t*this.itemSize+3]=e,this},setXY:function(t,e,n){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this.array[t+3]=i,this},onUpload:function(t){return this.onUploadCallback=t,this},clone:function(){return new this.constructor(this.array,this.itemSize).copy(this)},toJSON:function(){return{itemSize:this.itemSize,type:this.array.constructor.name,array:Array.prototype.slice.call(this.array),normalized:this.normalized}}}),wi.prototype=Object.create(bi.prototype),wi.prototype.constructor=wi,Mi.prototype=Object.create(bi.prototype),Mi.prototype.constructor=Mi,Si.prototype=Object.create(bi.prototype),Si.prototype.constructor=Si,Ti.prototype=Object.create(bi.prototype),Ti.prototype.constructor=Ti,Ei.prototype=Object.create(bi.prototype),Ei.prototype.constructor=Ei,Ai.prototype=Object.create(bi.prototype),Ai.prototype.constructor=Ai,Li.prototype=Object.create(bi.prototype),Li.prototype.constructor=Li,Ri.prototype=Object.create(bi.prototype),Ri.prototype.constructor=Ri,Ri.prototype.isFloat16BufferAttribute=!0,Ci.prototype=Object.create(bi.prototype),Ci.prototype.constructor=Ci,Pi.prototype=Object.create(bi.prototype),Pi.prototype.constructor=Pi;const Ii={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:Uint8ClampedArray,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};function Bi(t,e){return new Ii[t](e)}let Ni=0;const Fi=new wr,Oi=new Xr,zi=new Yn,Gi=new Qn,Hi=new Qn,Ui=new Yn;function ki(){Object.defineProperty(this,"id",{value:Ni++}),this.uuid=Fn.generateUUID(),this.name="",this.type="BufferGeometry",this.index=null,this.attributes={},this.morphAttributes={},this.morphTargetsRelative=!1,this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.drawRange={start:0,count:1/0},this.userData={}}ki.prototype=Object.assign(Object.create(In.prototype),{constructor:ki,isBufferGeometry:!0,getIndex:function(){return this.index},setIndex:function(t){return Array.isArray(t)?this.index=new(Di(t)>65535?Li:Ei)(t,1):this.index=t,this},getAttribute:function(t){return this.attributes[t]},setAttribute:function(t,e){return this.attributes[t]=e,this},deleteAttribute:function(t){return delete this.attributes[t],this},hasAttribute:function(t){return void 0!==this.attributes[t]},addGroup:function(t,e,n=0){this.groups.push({start:t,count:e,materialIndex:n})},clearGroups:function(){this.groups=[]},setDrawRange:function(t,e){this.drawRange.start=t,this.drawRange.count=e},applyMatrix4:function(t){const e=this.attributes.position;void 0!==e&&(e.applyMatrix4(t),e.needsUpdate=!0);const n=this.attributes.normal;if(void 0!==n){const e=(new zn).getNormalMatrix(t);n.applyNormalMatrix(e),n.needsUpdate=!0}const r=this.attributes.tangent;return void 0!==r&&(r.transformDirection(t),r.needsUpdate=!0),null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this},rotateX:function(t){return Fi.makeRotationX(t),this.applyMatrix4(Fi),this},rotateY:function(t){return Fi.makeRotationY(t),this.applyMatrix4(Fi),this},rotateZ:function(t){return Fi.makeRotationZ(t),this.applyMatrix4(Fi),this},translate:function(t,e,n){return Fi.makeTranslation(t,e,n),this.applyMatrix4(Fi),this},scale:function(t,e,n){return Fi.makeScale(t,e,n),this.applyMatrix4(Fi),this},lookAt:function(t){return Oi.lookAt(t),Oi.updateMatrix(),this.applyMatrix4(Oi.matrix),this},center:function(){return this.computeBoundingBox(),this.boundingBox.getCenter(zi).negate(),this.translate(zi.x,zi.y,zi.z),this},setFromPoints:function(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n];e.push(r.x,r.y,r.z||0)}return this.setAttribute("position",new Ci(e,3)),this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new Qn);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingBox.set(new Yn(-1/0,-1/0,-1/0),new Yn(1/0,1/0,1/0));if(void 0!==t){if(this.boundingBox.setFromBufferAttribute(t),e)for(let n=0,r=e.length;n<r;n++){const t=e[n];Gi.setFromBufferAttribute(t),this.morphTargetsRelative?(Ui.addVectors(this.boundingBox.min,Gi.min),this.boundingBox.expandByPoint(Ui),Ui.addVectors(this.boundingBox.max,Gi.max),this.boundingBox.expandByPoint(Ui)):(this.boundingBox.expandByPoint(Gi.min),this.boundingBox.expandByPoint(Gi.max))}}else this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new dr);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingSphere.set(new Yn,1/0);if(t){const n=this.boundingSphere.center;if(Gi.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const n=e[t];Hi.setFromBufferAttribute(n),this.morphTargetsRelative?(Ui.addVectors(Gi.min,Hi.min),Gi.expandByPoint(Ui),Ui.addVectors(Gi.max,Hi.max),Gi.expandByPoint(Ui)):(Gi.expandByPoint(Hi.min),Gi.expandByPoint(Hi.max))}Gi.getCenter(n);let r=0;for(let e=0,i=t.count;e<i;e++)Ui.fromBufferAttribute(t,e),r=Math.max(r,n.distanceToSquared(Ui));if(e)for(let i=0,s=e.length;i<s;i++){const s=e[i],o=this.morphTargetsRelative;for(let e=0,i=s.count;e<i;e++)Ui.fromBufferAttribute(s,e),o&&(zi.fromBufferAttribute(t,e),Ui.add(zi)),r=Math.max(r,n.distanceToSquared(Ui))}this.boundingSphere.radius=Math.sqrt(r),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}},computeFaceNormals:function(){},computeTangents:function(){const t=this.index,e=this.attributes;if(null===t||void 0===e.position||void 0===e.normal||void 0===e.uv)return void console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");const n=t.array,r=e.position.array,i=e.normal.array,s=e.uv.array,o=r.length/3;void 0===e.tangent&&this.setAttribute("tangent",new bi(new Float32Array(4*o),4));const a=e.tangent.array,l=[],c=[];for(let T=0;T<o;T++)l[T]=new Yn,c[T]=new Yn;const h=new Yn,u=new Yn,p=new Yn,d=new On,m=new On,f=new On,g=new Yn,x=new Yn;function v(t,e,n){h.fromArray(r,3*t),u.fromArray(r,3*e),p.fromArray(r,3*n),d.fromArray(s,2*t),m.fromArray(s,2*e),f.fromArray(s,2*n),u.sub(h),p.sub(h),m.sub(d),f.sub(d);const i=1/(m.x*f.y-f.x*m.y);isFinite(i)&&(g.copy(u).multiplyScalar(f.y).addScaledVector(p,-m.y).multiplyScalar(i),x.copy(p).multiplyScalar(m.x).addScaledVector(u,-f.x).multiplyScalar(i),l[t].add(g),l[e].add(g),l[n].add(g),c[t].add(x),c[e].add(x),c[n].add(x))}let y=this.groups;0===y.length&&(y=[{start:0,count:n.length}]);for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)v(n[r+0],n[r+1],n[r+2])}const _=new Yn,b=new Yn,w=new Yn,M=new Yn;function S(t){w.fromArray(i,3*t),M.copy(w);const e=l[t];_.copy(e),_.sub(w.multiplyScalar(w.dot(e))).normalize(),b.crossVectors(M,e);const n=b.dot(c[t])<0?-1:1;a[4*t]=_.x,a[4*t+1]=_.y,a[4*t+2]=_.z,a[4*t+3]=n}for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)S(n[r+0]),S(n[r+1]),S(n[r+2])}},computeVertexNormals:function(){const t=this.index,e=this.getAttribute("position");if(void 0!==e){let n=this.getAttribute("normal");if(void 0===n)n=new bi(new Float32Array(3*e.count),3),this.setAttribute("normal",n);else for(let t=0,e=n.count;t<e;t++)n.setXYZ(t,0,0,0);const r=new Yn,i=new Yn,s=new Yn,o=new Yn,a=new Yn,l=new Yn,c=new Yn,h=new Yn;if(t)for(let u=0,p=t.count;u<p;u+=3){const p=t.getX(u+0),d=t.getX(u+1),m=t.getX(u+2);r.fromBufferAttribute(e,p),i.fromBufferAttribute(e,d),s.fromBufferAttribute(e,m),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),o.fromBufferAttribute(n,p),a.fromBufferAttribute(n,d),l.fromBufferAttribute(n,m),o.add(c),a.add(c),l.add(c),n.setXYZ(p,o.x,o.y,o.z),n.setXYZ(d,a.x,a.y,a.z),n.setXYZ(m,l.x,l.y,l.z)}else for(let t=0,u=e.count;t<u;t+=3)r.fromBufferAttribute(e,t+0),i.fromBufferAttribute(e,t+1),s.fromBufferAttribute(e,t+2),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),n.setXYZ(t+0,c.x,c.y,c.z),n.setXYZ(t+1,c.x,c.y,c.z),n.setXYZ(t+2,c.x,c.y,c.z);this.normalizeNormals(),n.needsUpdate=!0}},merge:function(t,e){if(!t||!t.isBufferGeometry)return void console.error("THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.",t);void 0===e&&(e=0,console.warn("THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge."));const n=this.attributes;for(const r in n){if(void 0===t.attributes[r])continue;const i=n[r].array,s=t.attributes[r],o=s.array,a=s.itemSize*e,l=Math.min(o.length,i.length-a);for(let t=0,e=a;t<l;t++,e++)i[e]=o[t]}return this},normalizeNormals:function(){const t=this.attributes.normal;for(let e=0,n=t.count;e<n;e++)Ui.fromBufferAttribute(t,e),Ui.normalize(),t.setXYZ(e,Ui.x,Ui.y,Ui.z)},toNonIndexed:function(){function t(t,e){const n=t.array,r=t.itemSize,i=t.normalized,s=new n.constructor(e.length*r);let o=0,a=0;for(let l=0,c=e.length;l<c;l++){o=e[l]*r;for(let t=0;t<r;t++)s[a++]=n[o++]}return new bi(s,r,i)}if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed."),this;const e=new ki,n=this.index.array,r=this.attributes;for(const o in r){const i=t(r[o],n);e.setAttribute(o,i)}const i=this.morphAttributes;for(const o in i){const r=[],s=i[o];for(let e=0,i=s.length;e<i;e++){const i=t(s[e],n);r.push(i)}e.morphAttributes[o]=r}e.morphTargetsRelative=this.morphTargetsRelative;const s=this.groups;for(let o=0,a=s.length;o<a;o++){const t=s[o];e.addGroup(t.start,t.count,t.materialIndex)}return e},toJSON:function(){const t={metadata:{version:4.5,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};if(t.uuid=this.uuid,t.type=this.type,""!==this.name&&(t.name=this.name),Object.keys(this.userData).length>0&&(t.userData=this.userData),void 0!==this.parameters){const e=this.parameters;for(const n in e)void 0!==e[n]&&(t[n]=e[n]);return t}t.data={attributes:{}};const e=this.index;null!==e&&(t.data.index={type:e.array.constructor.name,array:Array.prototype.slice.call(e.array)});const n=this.attributes;for(const a in n){const e=n[a],r=e.toJSON(t.data);""!==e.name&&(r.name=e.name),t.data.attributes[a]=r}const r={};let i=!1;for(const a in this.morphAttributes){const e=this.morphAttributes[a],n=[];for(let r=0,i=e.length;r<i;r++){const i=e[r],s=i.toJSON(t.data);""!==i.name&&(s.name=i.name),n.push(s)}n.length>0&&(r[a]=n,i=!0)}i&&(t.data.morphAttributes=r,t.data.morphTargetsRelative=this.morphTargetsRelative);const s=this.groups;s.length>0&&(t.data.groups=JSON.parse(JSON.stringify(s)));const o=this.boundingSphere;return null!==o&&(t.data.boundingSphere={center:o.center.toArray(),radius:o.radius}),t},clone:function(){return(new ki).copy(this)},copy:function(t){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const e={};this.name=t.name;const n=t.index;null!==n&&this.setIndex(n.clone(e));const r=t.attributes;for(const l in r){const t=r[l];this.setAttribute(l,t.clone(e))}const i=t.morphAttributes;for(const l in i){const t=[],n=i[l];for(let r=0,i=n.length;r<i;r++)t.push(n[r].clone(e));this.morphAttributes[l]=t}this.morphTargetsRelative=t.morphTargetsRelative;const s=t.groups;for(let l=0,c=s.length;l<c;l++){const t=s[l];this.addGroup(t.start,t.count,t.materialIndex)}const o=t.boundingBox;null!==o&&(this.boundingBox=o.clone());const a=t.boundingSphere;return null!==a&&(this.boundingSphere=a.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this.userData=t.userData,this},dispose:function(){this.dispatchEvent({type:"dispose"})}});const Vi=new wr,Wi=new br,ji=new dr,qi=new Yn,Xi=new Yn,Yi=new Yn,Zi=new Yn,Ji=new Yn,Qi=new Yn,Ki=new Yn,$i=new Yn,ts=new Yn,es=new On,ns=new On,rs=new On,is=new Yn,ss=new Yn;function os(t=new ki,e=new vi){Xr.call(this),this.type="Mesh",this.geometry=t,this.material=e,this.updateMorphTargets()}function as(t,e,n,r,i,s,o,a){let l;if(null===(l=e.side===p?r.intersectTriangle(o,s,i,!0,a):r.intersectTriangle(i,s,o,e.side!==d,a)))return null;ss.copy(a),ss.applyMatrix4(t.matrixWorld);const c=n.ray.origin.distanceTo(ss);return c<n.near||c>n.far?null:{distance:c,point:ss.clone(),object:t}}function ls(t,e,n,r,i,s,o,a,l,c,h,u){qi.fromBufferAttribute(i,c),Xi.fromBufferAttribute(i,h),Yi.fromBufferAttribute(i,u);const p=t.morphTargetInfluences;if(e.morphTargets&&s&&p){Ki.set(0,0,0),$i.set(0,0,0),ts.set(0,0,0);for(let t=0,e=s.length;t<e;t++){const e=p[t],n=s[t];0!==e&&(Zi.fromBufferAttribute(n,c),Ji.fromBufferAttribute(n,h),Qi.fromBufferAttribute(n,u),o?(Ki.addScaledVector(Zi,e),$i.addScaledVector(Ji,e),ts.addScaledVector(Qi,e)):(Ki.addScaledVector(Zi.sub(qi),e),$i.addScaledVector(Ji.sub(Xi),e),ts.addScaledVector(Qi.sub(Yi),e)))}qi.add(Ki),Xi.add($i),Yi.add(ts)}t.isSkinnedMesh&&e.skinning&&(t.boneTransform(c,qi),t.boneTransform(h,Xi),t.boneTransform(u,Yi));const d=as(t,e,n,r,qi,Xi,Yi,is);if(d){a&&(es.fromBufferAttribute(a,c),ns.fromBufferAttribute(a,h),rs.fromBufferAttribute(a,u),d.uv=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On)),l&&(es.fromBufferAttribute(l,c),ns.fromBufferAttribute(l,h),rs.fromBufferAttribute(l,u),d.uv2=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On));const t={a:c,b:h,c:u,normal:new Yn,materialIndex:0};li.getNormal(qi,Xi,Yi,t.normal),d.face=t}return d}os.prototype=Object.assign(Object.create(Xr.prototype),{constructor:os,isMesh:!0,copy:function(t){return Xr.prototype.copy.call(this,t),void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this.material=t.material,this.geometry=t.geometry,this},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}},raycast:function(t,e){const n=this.geometry,r=this.material,i=this.matrixWorld;if(void 0===r)return;if(null===n.boundingSphere&&n.computeBoundingSphere(),ji.copy(n.boundingSphere),ji.applyMatrix4(i),!1===t.ray.intersectsSphere(ji))return;if(Vi.copy(i).invert(),Wi.copy(t.ray).applyMatrix4(Vi),null!==n.boundingBox&&!1===Wi.intersectsBox(n.boundingBox))return;let s;if(n.isBufferGeometry){const i=n.index,o=n.attributes.position,a=n.morphAttributes.position,l=n.morphTargetsRelative,c=n.attributes.uv,h=n.attributes.uv2,u=n.groups,p=n.drawRange;if(null!==i)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const d=u[n],m=r[d.materialIndex];for(let n=Math.max(d.start,p.start),r=Math.min(d.start+d.count,p.start+p.count);n<r;n+=3){const r=i.getX(n),u=i.getX(n+1),p=i.getX(n+2);(s=ls(this,m,t,Wi,o,a,l,c,h,r,u,p))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=d.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),u=Math.min(i.count,p.start+p.count);n<u;n+=3){const u=i.getX(n),p=i.getX(n+1),d=i.getX(n+2);(s=ls(this,r,t,Wi,o,a,l,c,h,u,p,d))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}else if(void 0!==o)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const i=u[n],d=r[i.materialIndex];for(let n=Math.max(i.start,p.start),r=Math.min(i.start+i.count,p.start+p.count);n<r;n+=3){(s=ls(this,d,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=i.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),i=Math.min(o.count,p.start+p.count);n<i;n+=3){(s=ls(this,r,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}}else n.isGeometry&&console.error("THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}});class cs extends ki{constructor(t=1,e=1,n=1,r=1,i=1,s=1){super(),this.type="BoxGeometry",this.parameters={width:t,height:e,depth:n,widthSegments:r,heightSegments:i,depthSegments:s};const o=this;r=Math.floor(r),i=Math.floor(i),s=Math.floor(s);const a=[],l=[],c=[],h=[];let u=0,p=0;function d(t,e,n,r,i,s,d,m,f,g,x){const v=s/f,y=d/g,_=s/2,b=d/2,w=m/2,M=f+1,S=g+1;let T=0,E=0;const A=new Yn;for(let o=0;o<S;o++){const s=o*y-b;for(let a=0;a<M;a++){const u=a*v-_;A[t]=u*r,A[e]=s*i,A[n]=w,l.push(A.x,A.y,A.z),A[t]=0,A[e]=0,A[n]=m>0?1:-1,c.push(A.x,A.y,A.z),h.push(a/f),h.push(1-o/g),T+=1}}for(let o=0;o<g;o++)for(let t=0;t<f;t++){const e=u+t+M*o,n=u+t+M*(o+1),r=u+(t+1)+M*(o+1),i=u+(t+1)+M*o;a.push(e,n,i),a.push(n,r,i),E+=6}o.addGroup(p,E,x),p+=E,u+=T}d("z","y","x",-1,-1,n,e,t,s,i,0),d("z","y","x",1,-1,n,e,-t,s,i,1),d("x","z","y",1,1,t,n,e,r,s,2),d("x","z","y",1,-1,t,n,-e,r,s,3),d("x","y","z",1,-1,t,e,n,r,i,4),d("x","y","z",-1,-1,t,e,-n,r,i,5),this.setIndex(a),this.setAttribute("position",new Ci(l,3)),this.setAttribute("normal",new Ci(c,3)),this.setAttribute("uv",new Ci(h,2))}}function hs(t){const e={};for(const n in t){e[n]={};for(const r in t[n]){const i=t[n][r];i&&(i.isColor||i.isMatrix3||i.isMatrix4||i.isVector2||i.isVector3||i.isVector4||i.isTexture||i.isQuaternion)?e[n][r]=i.clone():Array.isArray(i)?e[n][r]=i.slice():e[n][r]=i}}return e}function us(t){const e={};for(let n=0;n<t.length;n++){const r=hs(t[n]);for(const t in r)e[t]=r[t]}return e}exports.BoxGeometry=exports.BoxBufferGeometry=cs;const ps={clone:hs,merge:us};exports.UniformsUtils=ps;var ds="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}",ms="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";function fs(t){hi.call(this),this.type="ShaderMaterial",this.defines={},this.uniforms={},this.vertexShader=ds,this.fragmentShader=ms,this.linewidth=1,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.clipping=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.extensions={derivatives:!1,fragDepth:!1,drawBuffers:!1,shaderTextureLOD:!1},this.defaultAttributeValues={color:[1,1,1],uv:[0,0],uv2:[0,0]},this.index0AttributeName=void 0,this.uniformsNeedUpdate=!1,this.glslVersion=null,void 0!==t&&(void 0!==t.attributes&&console.error("THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead."),this.setValues(t))}function gs(){Xr.call(this),this.type="Camera",this.matrixWorldInverse=new wr,this.projectionMatrix=new wr,this.projectionMatrixInverse=new wr}function xs(t=50,e=1,n=.1,r=2e3){gs.call(this),this.type="PerspectiveCamera",this.fov=t,this.zoom=1,this.near=n,this.far=r,this.focus=10,this.aspect=e,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}fs.prototype=Object.create(hi.prototype),fs.prototype.constructor=fs,fs.prototype.isShaderMaterial=!0,fs.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=hs(t.uniforms),this.defines=Object.assign({},t.defines),this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.lights=t.lights,this.clipping=t.clipping,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.extensions=Object.assign({},t.extensions),this.glslVersion=t.glslVersion,this},fs.prototype.toJSON=function(t){const e=hi.prototype.toJSON.call(this,t);e.glslVersion=this.glslVersion,e.uniforms={};for(const r in this.uniforms){const n=this.uniforms[r].value;n&&n.isTexture?e.uniforms[r]={type:"t",value:n.toJSON(t).uuid}:n&&n.isColor?e.uniforms[r]={type:"c",value:n.getHex()}:n&&n.isVector2?e.uniforms[r]={type:"v2",value:n.toArray()}:n&&n.isVector3?e.uniforms[r]={type:"v3",value:n.toArray()}:n&&n.isVector4?e.uniforms[r]={type:"v4",value:n.toArray()}:n&&n.isMatrix3?e.uniforms[r]={type:"m3",value:n.toArray()}:n&&n.isMatrix4?e.uniforms[r]={type:"m4",value:n.toArray()}:e.uniforms[r]={value:n}}Object.keys(this.defines).length>0&&(e.defines=this.defines),e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader;const n={};for(const r in this.extensions)!0===this.extensions[r]&&(n[r]=!0);return Object.keys(n).length>0&&(e.extensions=n),e},gs.prototype=Object.assign(Object.create(Xr.prototype),{constructor:gs,isCamera:!0,copy:function(t,e){return Xr.prototype.copy.call(this,t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this.projectionMatrixInverse.copy(t.projectionMatrixInverse),this},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Camera: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(-e[8],-e[9],-e[10]).normalize()},updateMatrixWorld:function(t){Xr.prototype.updateMatrixWorld.call(this,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()},updateWorldMatrix:function(t,e){Xr.prototype.updateWorldMatrix.call(this,t,e),this.matrixWorldInverse.copy(this.matrixWorld).invert()},clone:function(){return(new this.constructor).copy(this)}}),xs.prototype=Object.assign(Object.create(gs.prototype),{constructor:xs,isPerspectiveCamera:!0,copy:function(t,e){return gs.prototype.copy.call(this,t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this},setFocalLength:function(t){const e=.5*this.getFilmHeight()/t;this.fov=2*Fn.RAD2DEG*Math.atan(e),this.updateProjectionMatrix()},getFocalLength:function(){const t=Math.tan(.5*Fn.DEG2RAD*this.fov);return.5*this.getFilmHeight()/t},getEffectiveFOV:function(){return 2*Fn.RAD2DEG*Math.atan(Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(t,e,n,r,i,s){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){const t=this.near;let e=t*Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom,n=2*e,r=this.aspect*n,i=-.5*r;const s=this.view;if(null!==this.view&&this.view.enabled){const t=s.fullWidth,o=s.fullHeight;i+=s.offsetX*r/t,e-=s.offsetY*n/o,r*=s.width/t,n*=s.height/o}const o=this.filmOffset;0!==o&&(i+=t*o/this.getFilmWidth()),this.projectionMatrix.makePerspective(i,i+r,e,e-n,t,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()},toJSON:function(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}});const vs=90,ys=1;class _s extends Xr{constructor(t,e,n){if(super(),this.type="CubeCamera",!0!==n.isWebGLCubeRenderTarget)return void console.error("THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.");this.renderTarget=n;const r=new xs(vs,ys,t,e);r.layers=this.layers,r.up.set(0,-1,0),r.lookAt(new Yn(1,0,0)),this.add(r);const i=new xs(vs,ys,t,e);i.layers=this.layers,i.up.set(0,-1,0),i.lookAt(new Yn(-1,0,0)),this.add(i);const s=new xs(vs,ys,t,e);s.layers=this.layers,s.up.set(0,0,1),s.lookAt(new Yn(0,1,0)),this.add(s);const o=new xs(vs,ys,t,e);o.layers=this.layers,o.up.set(0,0,-1),o.lookAt(new Yn(0,-1,0)),this.add(o);const a=new xs(vs,ys,t,e);a.layers=this.layers,a.up.set(0,-1,0),a.lookAt(new Yn(0,0,1)),this.add(a);const l=new xs(vs,ys,t,e);l.layers=this.layers,l.up.set(0,-1,0),l.lookAt(new Yn(0,0,-1)),this.add(l)}update(t,e){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget,[r,i,s,o,a,l]=this.children,c=t.xr.enabled,h=t.getRenderTarget();t.xr.enabled=!1;const u=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,t.setRenderTarget(n,0),t.render(e,r),t.setRenderTarget(n,1),t.render(e,i),t.setRenderTarget(n,2),t.render(e,s),t.setRenderTarget(n,3),t.render(e,o),t.setRenderTarget(n,4),t.render(e,a),n.texture.generateMipmaps=u,t.setRenderTarget(n,5),t.render(e,l),t.setRenderTarget(h),t.xr.enabled=c}}exports.CubeCamera=_s;class bs extends kn{constructor(t,e,n,r,i,s,o,a,l,c){super(t=void 0!==t?t:[],e=void 0!==e?e:nt,n,r,i,s,o=void 0!==o?o:Bt,a,l,c),this._needsFlipEnvMap=!0,this.flipY=!1}get images(){return this.image}set images(t){this.image=t}}exports.CubeTexture=bs,bs.prototype.isCubeTexture=!0;class ws extends jn{constructor(t,e,n){Number.isInteger(e)&&(console.warn("THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )"),e=n),super(t,t,e),e=e||{},this.texture=new bs(void 0,e.mapping,e.wrapS,e.wrapT,e.magFilter,e.minFilter,e.format,e.type,e.anisotropy,e.encoding),this.texture.generateMipmaps=void 0!==e.generateMipmaps&&e.generateMipmaps,this.texture.minFilter=void 0!==e.minFilter?e.minFilter:gt,this.texture._needsFlipEnvMap=!1}fromEquirectangularTexture(t,e){this.texture.type=e.type,this.texture.format=Nt,this.texture.encoding=e.encoding,this.texture.generateMipmaps=e.generateMipmaps,this.texture.minFilter=e.minFilter,this.texture.magFilter=e.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include <common>\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},r=new cs(5,5,5),i=new fs({name:"CubemapFromEquirect",uniforms:hs(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:p,blending:g});i.uniforms.tEquirect.value=e;const s=new os(r,i),o=e.minFilter;return e.minFilter===yt&&(e.minFilter=gt),new _s(1,10,this).update(t,s),e.minFilter=o,s.geometry.dispose(),s.material.dispose(),this}clear(t,e,n,r){const i=t.getRenderTarget();for(let s=0;s<6;s++)t.setRenderTarget(this,s),t.clear(e,n,r);t.setRenderTarget(i)}}exports.WebGLCubeRenderTarget=ws,ws.prototype.isWebGLCubeRenderTarget=!0;class Ms extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={data:t||null,width:e||1,height:n||1},this.magFilter=void 0!==l?l:ut,this.minFilter=void 0!==c?c:ut,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.needsUpdate=!0}}exports.DataTexture=Ms,Ms.prototype.isDataTexture=!0;const Ss=new dr,Ts=new Yn;class Es{constructor(t=new Qr,e=new Qr,n=new Qr,r=new Qr,i=new Qr,s=new Qr){this.planes=[t,e,n,r,i,s]}set(t,e,n,r,i,s){const o=this.planes;return o[0].copy(t),o[1].copy(e),o[2].copy(n),o[3].copy(r),o[4].copy(i),o[5].copy(s),this}copy(t){const e=this.planes;for(let n=0;n<6;n++)e[n].copy(t.planes[n]);return this}setFromProjectionMatrix(t){const e=this.planes,n=t.elements,r=n[0],i=n[1],s=n[2],o=n[3],a=n[4],l=n[5],c=n[6],h=n[7],u=n[8],p=n[9],d=n[10],m=n[11],f=n[12],g=n[13],x=n[14],v=n[15];return e[0].setComponents(o-r,h-a,m-u,v-f).normalize(),e[1].setComponents(o+r,h+a,m+u,v+f).normalize(),e[2].setComponents(o+i,h+l,m+p,v+g).normalize(),e[3].setComponents(o-i,h-l,m-p,v-g).normalize(),e[4].setComponents(o-s,h-c,m-d,v-x).normalize(),e[5].setComponents(o+s,h+c,m+d,v+x).normalize(),this}intersectsObject(t){const e=t.geometry;return null===e.boundingSphere&&e.computeBoundingSphere(),Ss.copy(e.boundingSphere).applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSprite(t){return Ss.center.set(0,0,0),Ss.radius=.7071067811865476,Ss.applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSphere(t){const e=this.planes,n=t.center,r=-t.radius;for(let i=0;i<6;i++){if(e[i].distanceToPoint(n)<r)return!1}return!0}intersectsBox(t){const e=this.planes;for(let n=0;n<6;n++){const r=e[n];if(Ts.x=r.normal.x>0?t.max.x:t.min.x,Ts.y=r.normal.y>0?t.max.y:t.min.y,Ts.z=r.normal.z>0?t.max.z:t.min.z,r.distanceToPoint(Ts)<0)return!1}return!0}containsPoint(t){const e=this.planes;for(let n=0;n<6;n++)if(e[n].distanceToPoint(t)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function As(){let t=null,e=!1,n=null,r=null;function i(e,s){n(e,s),r=t.requestAnimationFrame(i)}return{start:function(){!0!==e&&null!==n&&(r=t.requestAnimationFrame(i),e=!0)},stop:function(){t.cancelAnimationFrame(r),e=!1},setAnimationLoop:function(t){n=t},setContext:function(e){t=e}}}function Ls(t,e){const n=e.isWebGL2,r=new WeakMap;return{get:function(t){return t.isInterleavedBufferAttribute&&(t=t.data),r.get(t)},remove:function(e){e.isInterleavedBufferAttribute&&(e=e.data);const n=r.get(e);n&&(t.deleteBuffer(n.buffer),r.delete(e))},update:function(e,i){if(e.isGLBufferAttribute){const t=r.get(e);return void((!t||t.version<e.version)&&r.set(e,{buffer:e.buffer,type:e.type,bytesPerElement:e.elementSize,version:e.version}))}e.isInterleavedBufferAttribute&&(e=e.data);const s=r.get(e);void 0===s?r.set(e,function(e,r){const i=e.array,s=e.usage,o=t.createBuffer();t.bindBuffer(r,o),t.bufferData(r,i,s),e.onUploadCallback();let a=5126;return i instanceof Float32Array?a=5126:i instanceof Float64Array?console.warn("THREE.WebGLAttributes: Unsupported data buffer format: Float64Array."):i instanceof Uint16Array?e.isFloat16BufferAttribute?n?a=5131:console.warn("THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2."):a=5123:i instanceof Int16Array?a=5122:i instanceof Uint32Array?a=5125:i instanceof Int32Array?a=5124:i instanceof Int8Array?a=5120:i instanceof Uint8Array&&(a=5121),{buffer:o,type:a,bytesPerElement:i.BYTES_PER_ELEMENT,version:e.version}}(e,i)):s.version<e.version&&(function(e,r,i){const s=r.array,o=r.updateRange;t.bindBuffer(i,e),-1===o.count?t.bufferSubData(i,0,s):(n?t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s,o.offset,o.count):t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s.subarray(o.offset,o.offset+o.count)),o.count=-1)}(s.buffer,e,i),s.version=e.version)}}}exports.Frustum=Es;class Rs extends ki{constructor(t=1,e=1,n=1,r=1){super(),this.type="PlaneGeometry",this.parameters={width:t,height:e,widthSegments:n,heightSegments:r};const i=t/2,s=e/2,o=Math.floor(n),a=Math.floor(r),l=o+1,c=a+1,h=t/o,u=e/a,p=[],d=[],m=[],f=[];for(let g=0;g<c;g++){const t=g*u-s;for(let e=0;e<l;e++){const n=e*h-i;d.push(n,-t,0),m.push(0,0,1),f.push(e/o),f.push(1-g/a)}}for(let g=0;g<a;g++)for(let t=0;t<o;t++){const e=t+l*g,n=t+l*(g+1),r=t+1+l*(g+1),i=t+1+l*g;p.push(e,n,i),p.push(n,r,i)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.PlaneGeometry=exports.PlaneBufferGeometry=Rs;var Cs="#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif",Ps="#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",Ds="#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif",Is="#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif",Bs="#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",Ns="vec3 transformed = vec3( position );",Fs="vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif",Os="vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif",zs="#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif",Gs="#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",Hs="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",Us="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",ks="#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",Vs="#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif",Ws="#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif",js="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",qs="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",Xs="#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}",Ys="#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",Zs="vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",Js="#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",Qs="#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif",Ks="#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",$s="#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",to="gl_FragColor = linearToOutputTexel( gl_FragColor );",eo="\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}",no="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",ro="#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",io="#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",so="#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",oo="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",ao="#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif",lo="#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif",co="#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",ho="#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",uo="#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}",po="#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif",mo="#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",fo="vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif",go="uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif",xo="#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif",vo="ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",yo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)",_o="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",bo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)",wo="PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif",Mo="struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",So="\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",To="#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif",Eo="#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",Ao="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",Lo="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",Ro="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",Co="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",Po="#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif",Do="#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",Io="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",Bo="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",No="float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",Fo="#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",Oo="#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif",zo="#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif",Go="#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif",Ho="float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;",Uo="#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",ko="#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif",Vo="#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",Wo="#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif",jo="#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif",qo="vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}",Xo="#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",Yo="vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",Zo="#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",Jo="#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",Qo="float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",Ko="#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",$o="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",ta="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",ea="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif",na="float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",ra="#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",ia="#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif",sa="#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",oa="#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",aa="float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",la="#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",ca="#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",ha="#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",ua="#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif",pa="#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif",da="#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif",ma="#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif",fa="#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif",ga="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif",xa="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif",va="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif",ya="#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",_a="uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",ba="varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",wa="#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ma="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",Sa="#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",Ta="#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}",Ea="#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",Aa="#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}",La="uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ra="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}",Ca="uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Pa="uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",Da="uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ia="#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}",Ba="uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Na="#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Fa="#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Oa="#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}",za="#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ga="#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ha="#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ua="#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",ka="#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Va="#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Wa="#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}",ja="#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",qa="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Xa="uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}",Ya="uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Za="#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ja="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Qa="uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";const Ka={alphamap_fragment:Cs,alphamap_pars_fragment:Ps,alphatest_fragment:Ds,aomap_fragment:Is,aomap_pars_fragment:Bs,begin_vertex:Ns,beginnormal_vertex:Fs,bsdfs:Os,bumpmap_pars_fragment:zs,clipping_planes_fragment:Gs,clipping_planes_pars_fragment:Hs,clipping_planes_pars_vertex:Us,clipping_planes_vertex:ks,color_fragment:Vs,color_pars_fragment:Ws,color_pars_vertex:js,color_vertex:qs,common:Xs,cube_uv_reflection_fragment:Ys,defaultnormal_vertex:Zs,displacementmap_pars_vertex:Js,displacementmap_vertex:Qs,emissivemap_fragment:Ks,emissivemap_pars_fragment:$s,encodings_fragment:to,encodings_pars_fragment:eo,envmap_fragment:no,envmap_common_pars_fragment:ro,envmap_pars_fragment:io,envmap_pars_vertex:so,envmap_physical_pars_fragment:xo,envmap_vertex:oo,fog_vertex:ao,fog_pars_vertex:lo,fog_fragment:co,fog_pars_fragment:ho,gradientmap_pars_fragment:uo,lightmap_fragment:po,lightmap_pars_fragment:mo,lights_lambert_vertex:fo,lights_pars_begin:go,lights_toon_fragment:vo,lights_toon_pars_fragment:yo,lights_phong_fragment:_o,lights_phong_pars_fragment:bo,lights_physical_fragment:wo,lights_physical_pars_fragment:Mo,lights_fragment_begin:So,lights_fragment_maps:To,lights_fragment_end:Eo,logdepthbuf_fragment:Ao,logdepthbuf_pars_fragment:Lo,logdepthbuf_pars_vertex:Ro,logdepthbuf_vertex:Co,map_fragment:Po,map_pars_fragment:Do,map_particle_fragment:Io,map_particle_pars_fragment:Bo,metalnessmap_fragment:No,metalnessmap_pars_fragment:Fo,morphnormal_vertex:Oo,morphtarget_pars_vertex:zo,morphtarget_vertex:Go,normal_fragment_begin:Ho,normal_fragment_maps:Uo,normalmap_pars_fragment:ko,clearcoat_normal_fragment_begin:Vo,clearcoat_normal_fragment_maps:Wo,clearcoat_pars_fragment:jo,packing:qo,premultiplied_alpha_fragment:Xo,project_vertex:Yo,dithering_fragment:Zo,dithering_pars_fragment:Jo,roughnessmap_fragment:Qo,roughnessmap_pars_fragment:Ko,shadowmap_pars_fragment:$o,shadowmap_pars_vertex:ta,shadowmap_vertex:ea,shadowmask_pars_fragment:na,skinbase_vertex:ra,skinning_pars_vertex:ia,skinning_vertex:sa,skinnormal_vertex:oa,specularmap_fragment:aa,specularmap_pars_fragment:la,tonemapping_fragment:ca,tonemapping_pars_fragment:ha,transmissionmap_fragment:ua,transmissionmap_pars_fragment:pa,uv_pars_fragment:da,uv_pars_vertex:ma,uv_vertex:fa,uv2_pars_fragment:ga,uv2_pars_vertex:xa,uv2_vertex:va,worldpos_vertex:ya,background_frag:_a,background_vert:ba,cube_frag:wa,cube_vert:Ma,depth_frag:Sa,depth_vert:Ta,distanceRGBA_frag:Ea,distanceRGBA_vert:Aa,equirect_frag:La,equirect_vert:Ra,linedashed_frag:Ca,linedashed_vert:Pa,meshbasic_frag:Da,meshbasic_vert:Ia,meshlambert_frag:Ba,meshlambert_vert:Na,meshmatcap_frag:Fa,meshmatcap_vert:Oa,meshtoon_frag:za,meshtoon_vert:Ga,meshphong_frag:Ha,meshphong_vert:Ua,meshphysical_frag:ka,meshphysical_vert:Va,normal_frag:Wa,normal_vert:ja,points_frag:qa,points_vert:Xa,shadow_frag:Ya,shadow_vert:Za,sprite_frag:Ja,sprite_vert:Qa};exports.ShaderChunk=Ka;const $a={common:{diffuse:{value:new xi(15658734)},opacity:{value:1},map:{value:null},uvTransform:{value:new zn},uv2Transform:{value:new zn},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98},maxMipLevel:{value:0}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new On(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new xi(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new xi(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}},sprite:{diffuse:{value:new xi(15658734)},opacity:{value:1},center:{value:new On(.5,.5)},rotation:{value:0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}}};exports.UniformsLib=$a;const tl={basic:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.fog]),vertexShader:Ka.meshbasic_vert,fragmentShader:Ka.meshbasic_frag},lambert:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshlambert_vert,fragmentShader:Ka.meshlambert_frag},phong:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},specular:{value:new xi(1118481)},shininess:{value:30}}]),vertexShader:Ka.meshphong_vert,fragmentShader:Ka.meshphong_frag},standard:{uniforms:us([$a.common,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.roughnessmap,$a.metalnessmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag},toon:{uniforms:us([$a.common,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.gradientmap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshtoon_vert,fragmentShader:Ka.meshtoon_frag},matcap:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,{matcap:{value:null}}]),vertexShader:Ka.meshmatcap_vert,fragmentShader:Ka.meshmatcap_frag},points:{uniforms:us([$a.points,$a.fog]),vertexShader:Ka.points_vert,fragmentShader:Ka.points_frag},dashed:{uniforms:us([$a.common,$a.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:Ka.linedashed_vert,fragmentShader:Ka.linedashed_frag},depth:{uniforms:us([$a.common,$a.displacementmap]),vertexShader:Ka.depth_vert,fragmentShader:Ka.depth_frag},normal:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,{opacity:{value:1}}]),vertexShader:Ka.normal_vert,fragmentShader:Ka.normal_frag},sprite:{uniforms:us([$a.sprite,$a.fog]),vertexShader:Ka.sprite_vert,fragmentShader:Ka.sprite_frag},background:{uniforms:{uvTransform:{value:new zn},t2D:{value:null}},vertexShader:Ka.background_vert,fragmentShader:Ka.background_frag},cube:{uniforms:us([$a.envmap,{opacity:{value:1}}]),vertexShader:Ka.cube_vert,fragmentShader:Ka.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:Ka.equirect_vert,fragmentShader:Ka.equirect_frag},distanceRGBA:{uniforms:us([$a.common,$a.displacementmap,{referencePosition:{value:new Yn},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:Ka.distanceRGBA_vert,fragmentShader:Ka.distanceRGBA_frag},shadow:{uniforms:us([$a.lights,$a.fog,{color:{value:new xi(0)},opacity:{value:1}}]),vertexShader:Ka.shadow_vert,fragmentShader:Ka.shadow_frag}};function el(t,e,n,r,i){const s=new xi(0);let o,a,l=0,c=null,h=0,d=null;function m(t,e){n.buffers.color.setClear(t.r,t.g,t.b,e,i)}return{getClearColor:function(){return s},setClearColor:function(t,e=1){s.set(t),m(s,l=e)},getClearAlpha:function(){return l},setClearAlpha:function(t){m(s,l=t)},render:function(n,i,f,g){let x=!0===i.isScene?i.background:null;x&&x.isTexture&&(x=e.get(x));const v=t.xr,y=v.getSession&&v.getSession();y&&"additive"===y.environmentBlendMode&&(x=null),null===x?m(s,l):x&&x.isColor&&(m(x,1),g=!0),(t.autoClear||g)&&t.clear(t.autoClearColor,t.autoClearDepth,t.autoClearStencil),x&&(x.isCubeTexture||x.isWebGLCubeRenderTarget||x.mapping===ot)?(void 0===a&&((a=new os(new cs(1,1,1),new fs({name:"BackgroundCubeMaterial",uniforms:hs(tl.cube.uniforms),vertexShader:tl.cube.vertexShader,fragmentShader:tl.cube.fragmentShader,side:p,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),a.geometry.deleteAttribute("uv"),a.onBeforeRender=function(t,e,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(a.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(a)),x.isWebGLCubeRenderTarget&&(x=x.texture),a.material.uniforms.envMap.value=x,a.material.uniforms.flipEnvMap.value=x.isCubeTexture&&x._needsFlipEnvMap?-1:1,c===x&&h===x.version&&d===t.toneMapping||(a.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(a,a.geometry,a.material,0,0,null)):x&&x.isTexture&&(void 0===o&&((o=new os(new Rs(2,2),new fs({name:"BackgroundMaterial",uniforms:hs(tl.background.uniforms),vertexShader:tl.background.vertexShader,fragmentShader:tl.background.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),Object.defineProperty(o.material,"map",{get:function(){return 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s=c.newAttributes,o=c.enabledAttributes,a=c.attributeDivisors;if(s[n]=1,0===o[n]&&(t.enableVertexAttribArray(n),o[n]=1),a[n]!==i){(r.isWebGL2?t:e.get("ANGLE_instanced_arrays"))[r.isWebGL2?"vertexAttribDivisor":"vertexAttribDivisorANGLE"](n,i),a[n]=i}}function g(){const e=c.newAttributes,n=c.enabledAttributes;for(let r=0,i=n.length;r<i;r++)n[r]!==e[r]&&(t.disableVertexAttribArray(r),n[r]=0)}function x(e,n,i,s,o,a){!0!==r.isWebGL2||5124!==i&&5125!==i?t.vertexAttribPointer(e,n,i,s,o,a):t.vertexAttribIPointer(e,n,i,o,a)}function v(){y(),c!==l&&h((c=l).object)}function y(){l.geometry=null,l.program=null,l.wireframe=!1}return{setup:function(i,l,u,v,y){let _=!1;if(o){const e=function(e,n,i){const o=!0===i.wireframe;let l=a[e.id];void 0===l&&(l={},a[e.id]=l);let c=l[n.id];void 0===c&&(c={},l[n.id]=c);let h=c[o];return void 0===h&&(h=p(r.isWebGL2?t.createVertexArray():s.createVertexArrayOES()),c[o]=h),h}(v,u,l);c!==e&&h((c=e).object),(_=function(t,e){const n=c.attributes,r=t.attributes;let i=0;for(const s in r){const t=n[s],e=r[s];if(void 0===t)return!0;if(t.attribute!==e)return!0;if(t.data!==e.data)return!0;i++}return c.attributesNum!==i||c.index!==e}(v,y))&&function(t,e){const n={},r=t.attributes;let i=0;for(const s in r){const t=r[s],e={};e.attribute=t,t.data&&(e.data=t.data),n[s]=e,i++}c.attributes=n,c.attributesNum=i,c.index=e}(v,y)}else{const t=!0===l.wireframe;c.geometry===v.id&&c.program===u.id&&c.wireframe===t||(c.geometry=v.id,c.program=u.id,c.wireframe=t,_=!0)}!0===i.isInstancedMesh&&(_=!0),null!==y&&n.update(y,34963),_&&(function(i,s,o,a){if(!1===r.isWebGL2&&(i.isInstancedMesh||a.isInstancedBufferGeometry)&&null===e.get("ANGLE_instanced_arrays"))return;d();const l=a.attributes,c=o.getAttributes(),h=s.defaultAttributeValues;for(const e in c){const r=c[e];if(r>=0){const s=l[e];if(void 0!==s){const e=s.normalized,i=s.itemSize,o=n.get(s);if(void 0===o)continue;const l=o.buffer,c=o.type,h=o.bytesPerElement;if(s.isInterleavedBufferAttribute){const 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2:t.vertexAttrib2fv(r,n);break;case 3:t.vertexAttrib3fv(r,n);break;case 4:t.vertexAttrib4fv(r,n);break;default:t.vertexAttrib1fv(r,n)}}}}g()}(i,l,u,v),null!==y&&t.bindBuffer(34963,n.get(y).buffer))},reset:v,resetDefaultState:y,dispose:function(){v();for(const t in a){const e=a[t];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete a[t]}},releaseStatesOfGeometry:function(t){if(void 0===a[t.id])return;const e=a[t.id];for(const n in e){const t=e[n];for(const e in t)u(t[e].object),delete t[e];delete e[n]}delete a[t.id]},releaseStatesOfProgram:function(t){for(const e in a){const n=a[e];if(void 0===n[t.id])continue;const r=n[t.id];for(const t in r)u(r[t].object),delete r[t];delete n[t.id]}},initAttributes:d,enableAttribute:m,disableUnusedAttributes:g}}function rl(t,e,n,r){const i=r.isWebGL2;let s;this.setMode=function(t){s=t},this.render=function(e,r){t.drawArrays(s,e,r),n.update(r,s,1)},this.renderInstances=function(r,o,a){if(0===a)return;let l,c;if(i)l=t,c="drawArraysInstanced";else if(c="drawArraysInstancedANGLE",null===(l=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");l[c](s,r,o,a),n.update(o,s,a)}}function il(t,e,n){let r;function i(e){if("highp"===e){if(t.getShaderPrecisionFormat(35633,36338).precision>0&&t.getShaderPrecisionFormat(35632,36338).precision>0)return"highp";e="mediump"}return"mediump"===e&&t.getShaderPrecisionFormat(35633,36337).precision>0&&t.getShaderPrecisionFormat(35632,36337).precision>0?"mediump":"lowp"}const s="undefined"!=typeof WebGL2RenderingContext&&t instanceof WebGL2RenderingContext||"undefined"!=typeof WebGL2ComputeRenderingContext&&t instanceof WebGL2ComputeRenderingContext;let o=void 0!==n.precision?n.precision:"highp";const a=i(o);a!==o&&(console.warn("THREE.WebGLRenderer:",o,"not supported, using",a,"instead."),o=a);const l=!0===n.logarithmicDepthBuffer,c=t.getParameter(34930),h=t.getParameter(35660),u=t.getParameter(3379),p=t.getParameter(34076),d=t.getParameter(34921),m=t.getParameter(36347),f=t.getParameter(36348),g=t.getParameter(36349),x=h>0,v=s||e.has("OES_texture_float");return{isWebGL2:s,getMaxAnisotropy:function(){if(void 0!==r)return r;if(!0===e.has("EXT_texture_filter_anisotropic")){const n=e.get("EXT_texture_filter_anisotropic");r=t.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else r=0;return r},getMaxPrecision:i,precision:o,logarithmicDepthBuffer:l,maxTextures:c,maxVertexTextures:h,maxTextureSize:u,maxCubemapSize:p,maxAttributes:d,maxVertexUniforms:m,maxVaryings:f,maxFragmentUniforms:g,vertexTextures:x,floatFragmentTextures:v,floatVertexTextures:x&&v,maxSamples:s?t.getParameter(36183):0}}function sl(t){const e=this;let n=null,r=0,i=!1,s=!1;const o=new Qr,a=new zn,l={value:null,needsUpdate:!1};function c(){l.value!==n&&(l.value=n,l.needsUpdate=r>0),e.numPlanes=r,e.numIntersection=0}function h(t,n,r,i){const s=null!==t?t.length:0;let c=null;if(0!==s){if(c=l.value,!0!==i||null===c){const e=r+4*s,i=n.matrixWorldInverse;a.getNormalMatrix(i),(null===c||c.length<e)&&(c=new Float32Array(e));for(let n=0,l=r;n!==s;++n,l+=4)o.copy(t[n]).applyMatrix4(i,a),o.normal.toArray(c,l),c[l+3]=o.constant}l.value=c,l.needsUpdate=!0}return e.numPlanes=s,e.numIntersection=0,c}this.uniform=l,this.numPlanes=0,this.numIntersection=0,this.init=function(t,e,s){const o=0!==t.length||e||0!==r||i;return i=e,n=h(t,s,0),r=t.length,o},this.beginShadows=function(){s=!0,h(null)},this.endShadows=function(){s=!1,c()},this.setState=function(e,o,a){const u=e.clippingPlanes,p=e.clipIntersection,d=e.clipShadows,m=t.get(e);if(!i||null===u||0===u.length||s&&!d)s?h(null):c();else{const t=s?0:r,e=4*t;let i=m.clippingState||null;l.value=i,i=h(u,o,e,a);for(let r=0;r!==e;++r)i[r]=n[r];m.clippingState=i,this.numIntersection=p?this.numPlanes:0,this.numPlanes+=t}}}function ol(t){let e=new WeakMap;function n(t,e){return e===it?t.mapping=nt:e===st&&(t.mapping=rt),t}function r(t){const n=t.target;n.removeEventListener("dispose",r);const i=e.get(n);void 0!==i&&(e.delete(n),i.dispose())}return{get:function(i){if(i&&i.isTexture){const s=i.mapping;if(s===it||s===st){if(e.has(i))return n(e.get(i).texture,i.mapping);{const s=i.image;if(s&&s.height>0){const o=t.getRenderTarget(),a=new ws(s.height/2);return a.fromEquirectangularTexture(t,i),e.set(i,a),t.setRenderTarget(o),i.addEventListener("dispose",r),n(a.texture,i.mapping)}return null}}}return i},dispose:function(){e=new WeakMap}}}function al(t){const e={};function n(n){if(void 0!==e[n])return e[n];let r;switch(n){case"WEBGL_depth_texture":r=t.getExtension("WEBGL_depth_texture")||t.getExtension("MOZ_WEBGL_depth_texture")||t.getExtension("WEBKIT_WEBGL_depth_texture");break;case"EXT_texture_filter_anisotropic":r=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case"WEBGL_compressed_texture_s3tc":r=t.getExtension("WEBGL_compressed_texture_s3tc")||t.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case"WEBGL_compressed_texture_pvrtc":r=t.getExtension("WEBGL_compressed_texture_pvrtc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:r=t.getExtension(n)}return e[n]=r,r}return{has:function(t){return null!==n(t)},init:function(t){t.isWebGL2?n("EXT_color_buffer_float"):(n("WEBGL_depth_texture"),n("OES_texture_float"),n("OES_texture_half_float"),n("OES_texture_half_float_linear"),n("OES_standard_derivatives"),n("OES_element_index_uint"),n("OES_vertex_array_object"),n("ANGLE_instanced_arrays")),n("OES_texture_float_linear"),n("EXT_color_buffer_half_float")},get:function(t){const e=n(t);return null===e&&console.warn("THREE.WebGLRenderer: "+t+" extension not supported."),e}}}function ll(t,e,n,r){const i={},s=new WeakMap;function o(t){const a=t.target;null!==a.index&&e.remove(a.index);for(const n in a.attributes)e.remove(a.attributes[n]);a.removeEventListener("dispose",o),delete i[a.id];const l=s.get(a);l&&(e.remove(l),s.delete(a)),r.releaseStatesOfGeometry(a),!0===a.isInstancedBufferGeometry&&delete a._maxInstanceCount,n.memory.geometries--}function a(t){const n=[],r=t.index,i=t.attributes.position;let o=0;if(null!==r){const t=r.array;o=r.version;for(let e=0,r=t.length;e<r;e+=3){const r=t[e+0],i=t[e+1],s=t[e+2];n.push(r,i,i,s,s,r)}}else{const t=i.array;o=i.version;for(let e=0,r=t.length/3-1;e<r;e+=3){const t=e+0,r=e+1,i=e+2;n.push(t,r,r,i,i,t)}}const a=new(Di(n)>65535?Li:Ei)(n,1);a.version=o;const l=s.get(t);l&&e.remove(l),s.set(t,a)}return{get:function(t,e){return!0===i[e.id]?e:(e.addEventListener("dispose",o),i[e.id]=!0,n.memory.geometries++,e)},update:function(t){const n=t.attributes;for(const i in n)e.update(n[i],34962);const r=t.morphAttributes;for(const i in r){const t=r[i];for(let n=0,r=t.length;n<r;n++)e.update(t[n],34962)}},getWireframeAttribute:function(t){const e=s.get(t);if(e){const n=t.index;null!==n&&e.version<n.version&&a(t)}else a(t);return s.get(t)}}}function cl(t,e,n,r){const i=r.isWebGL2;let s,o,a;this.setMode=function(t){s=t},this.setIndex=function(t){o=t.type,a=t.bytesPerElement},this.render=function(e,r){t.drawElements(s,r,o,e*a),n.update(r,s,1)},this.renderInstances=function(r,l,c){if(0===c)return;let h,u;if(i)h=t,u="drawElementsInstanced";else if(u="drawElementsInstancedANGLE",null===(h=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");h[u](s,l,o,r*a,c),n.update(l,s,c)}}function hl(t){const e={frame:0,calls:0,triangles:0,points:0,lines:0};return{memory:{geometries:0,textures:0},render:e,programs:null,autoReset:!0,reset:function(){e.frame++,e.calls=0,e.triangles=0,e.points=0,e.lines=0},update:function(t,n,r){switch(e.calls++,n){case 4:e.triangles+=r*(t/3);break;case 1:e.lines+=r*(t/2);break;case 3:e.lines+=r*(t-1);break;case 2:e.lines+=r*t;break;case 0:e.points+=r*t;break;default:console.error("THREE.WebGLInfo: Unknown draw mode:",n)}}}}function ul(t,e){return t[0]-e[0]}function pl(t,e){return Math.abs(e[1])-Math.abs(t[1])}function dl(t){const e={},n=new Float32Array(8),r=[];for(let i=0;i<8;i++)r[i]=[i,0];return{update:function(i,s,o,a){const l=i.morphTargetInfluences,c=void 0===l?0:l.length;let h=e[s.id];if(void 0===h){h=[];for(let t=0;t<c;t++)h[t]=[t,0];e[s.id]=h}for(let t=0;t<c;t++){const e=h[t];e[0]=t,e[1]=l[t]}h.sort(pl);for(let t=0;t<8;t++)t<c&&h[t][1]?(r[t][0]=h[t][0],r[t][1]=h[t][1]):(r[t][0]=Number.MAX_SAFE_INTEGER,r[t][1]=0);r.sort(ul);const u=o.morphTargets&&s.morphAttributes.position,p=o.morphNormals&&s.morphAttributes.normal;let d=0;for(let t=0;t<8;t++){const e=r[t],i=e[0],o=e[1];i!==Number.MAX_SAFE_INTEGER&&o?(u&&s.getAttribute("morphTarget"+t)!==u[i]&&s.setAttribute("morphTarget"+t,u[i]),p&&s.getAttribute("morphNormal"+t)!==p[i]&&s.setAttribute("morphNormal"+t,p[i]),n[t]=o,d+=o):(u&&!0===s.hasAttribute("morphTarget"+t)&&s.deleteAttribute("morphTarget"+t),p&&!0===s.hasAttribute("morphNormal"+t)&&s.deleteAttribute("morphNormal"+t),n[t]=0)}const m=s.morphTargetsRelative?1:1-d;a.getUniforms().setValue(t,"morphTargetBaseInfluence",m),a.getUniforms().setValue(t,"morphTargetInfluences",n)}}}function ml(t,e,n,r){let i=new WeakMap;function s(t){const e=t.target;e.removeEventListener("dispose",s),n.remove(e.instanceMatrix),null!==e.instanceColor&&n.remove(e.instanceColor)}return{update:function(t){const o=r.render.frame,a=t.geometry,l=e.get(t,a);return i.get(l)!==o&&(e.update(l),i.set(l,o)),t.isInstancedMesh&&(!1===t.hasEventListener("dispose",s)&&t.addEventListener("dispose",s),n.update(t.instanceMatrix,34962),null!==t.instanceColor&&n.update(t.instanceColor,34962)),l},dispose:function(){i=new WeakMap}}}exports.ShaderLib=tl,tl.physical={uniforms:us([tl.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatNormalScale:{value:new On(1,1)},clearcoatNormalMap:{value:null},sheen:{value:new xi(0)},transmission:{value:0},transmissionMap:{value:null}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag};class fl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture2DArray=fl,fl.prototype.isDataTexture2DArray=!0;class gl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture3D=gl,gl.prototype.isDataTexture3D=!0;const xl=new kn,vl=new fl,yl=new gl,_l=new bs,bl=[],wl=[],Ml=new Float32Array(16),Sl=new Float32Array(9),Tl=new Float32Array(4);function El(t,e,n){const r=t[0];if(r<=0||r>0)return t;const i=e*n;let s=bl[i];if(void 0===s&&(s=new Float32Array(i),bl[i]=s),0!==e){r.toArray(s,0);for(let r=1,i=0;r!==e;++r)i+=n,t[r].toArray(s,i)}return s}function Al(t,e){if(t.length!==e.length)return!1;for(let n=0,r=t.length;n<r;n++)if(t[n]!==e[n])return!1;return!0}function Ll(t,e){for(let n=0,r=e.length;n<r;n++)t[n]=e[n]}function Rl(t,e){let n=wl[e];void 0===n&&(n=new Int32Array(e),wl[e]=n);for(let r=0;r!==e;++r)n[r]=t.allocateTextureUnit();return n}function Cl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1f(this.addr,e),n[0]=e)}function Pl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y||(t.uniform2f(this.addr,e.x,e.y),n[0]=e.x,n[1]=e.y);else{if(Al(n,e))return;t.uniform2fv(this.addr,e),Ll(n,e)}}function Dl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z||(t.uniform3f(this.addr,e.x,e.y,e.z),n[0]=e.x,n[1]=e.y,n[2]=e.z);else if(void 0!==e.r)n[0]===e.r&&n[1]===e.g&&n[2]===e.b||(t.uniform3f(this.addr,e.r,e.g,e.b),n[0]=e.r,n[1]=e.g,n[2]=e.b);else{if(Al(n,e))return;t.uniform3fv(this.addr,e),Ll(n,e)}}function Il(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z&&n[3]===e.w||(t.uniform4f(this.addr,e.x,e.y,e.z,e.w),n[0]=e.x,n[1]=e.y,n[2]=e.z,n[3]=e.w);else{if(Al(n,e))return;t.uniform4fv(this.addr,e),Ll(n,e)}}function Bl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix2fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Tl.set(r),t.uniformMatrix2fv(this.addr,!1,Tl),Ll(n,r)}}function Nl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix3fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Sl.set(r),t.uniformMatrix3fv(this.addr,!1,Sl),Ll(n,r)}}function Fl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix4fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Ml.set(r),t.uniformMatrix4fv(this.addr,!1,Ml),Ll(n,r)}}function Ol(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTexture2D(e||xl,i)}function zl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture2DArray(e||vl,i)}function Gl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture3D(e||yl,i)}function Hl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTextureCube(e||_l,i)}function Ul(t,e){const n=this.cache;n[0]!==e&&(t.uniform1i(this.addr,e),n[0]=e)}function kl(t,e){const n=this.cache;Al(n,e)||(t.uniform2iv(this.addr,e),Ll(n,e))}function Vl(t,e){const n=this.cache;Al(n,e)||(t.uniform3iv(this.addr,e),Ll(n,e))}function Wl(t,e){const n=this.cache;Al(n,e)||(t.uniform4iv(this.addr,e),Ll(n,e))}function jl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1ui(this.addr,e),n[0]=e)}function ql(t){switch(t){case 5126:return Cl;case 35664:return Pl;case 35665:return Dl;case 35666:return Il;case 35674:return Bl;case 35675:return Nl;case 35676:return Fl;case 5124:case 35670:return Ul;case 35667:case 35671:return kl;case 35668:case 35672:return Vl;case 35669:case 35673:return Wl;case 5125:return jl;case 35678:case 36198:case 36298:case 36306:case 35682:return Ol;case 35679:case 36299:case 36307:return Gl;case 35680:case 36300:case 36308:case 36293:return Hl;case 36289:case 36303:case 36311:case 36292:return zl}}function Xl(t,e){t.uniform1fv(this.addr,e)}function Yl(t,e){t.uniform1iv(this.addr,e)}function Zl(t,e){t.uniform2iv(this.addr,e)}function Jl(t,e){t.uniform3iv(this.addr,e)}function Ql(t,e){t.uniform4iv(this.addr,e)}function Kl(t,e){const n=El(e,this.size,2);t.uniform2fv(this.addr,n)}function $l(t,e){const n=El(e,this.size,3);t.uniform3fv(this.addr,n)}function tc(t,e){const n=El(e,this.size,4);t.uniform4fv(this.addr,n)}function ec(t,e){const n=El(e,this.size,4);t.uniformMatrix2fv(this.addr,!1,n)}function nc(t,e){const n=El(e,this.size,9);t.uniformMatrix3fv(this.addr,!1,n)}function rc(t,e){const n=El(e,this.size,16);t.uniformMatrix4fv(this.addr,!1,n)}function ic(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTexture2D(e[s]||xl,i[s])}function sc(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTextureCube(e[s]||_l,i[s])}function oc(t){switch(t){case 5126:return Xl;case 35664:return Kl;case 35665:return $l;case 35666:return tc;case 35674:return ec;case 35675:return nc;case 35676:return rc;case 5124:case 35670:return Yl;case 35667:case 35671:return Zl;case 35668:case 35672:return Jl;case 35669:case 35673:return Ql;case 35678:case 36198:case 36298:case 36306:case 35682:return ic;case 35680:case 36300:case 36308:case 36293:return sc}}function ac(t,e,n){this.id=t,this.addr=n,this.cache=[],this.setValue=ql(e.type)}function lc(t,e,n){this.id=t,this.addr=n,this.cache=[],this.size=e.size,this.setValue=oc(e.type)}function cc(t){this.id=t,this.seq=[],this.map={}}lc.prototype.updateCache=function(t){const e=this.cache;t instanceof 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texture2DProjLodEXT textureProjLod","#define textureCubeLodEXT textureLod","#define texture2DGradEXT textureGrad","#define texture2DProjGradEXT textureProjGrad","#define textureCubeGradEXT textureGrad"].join("\n")+"\n"+x);const y=v+x+a,_=mc(i,35633,v+g+o),b=mc(i,35632,y);if(i.attachShader(f,_),i.attachShader(f,b),void 0!==n.index0AttributeName?i.bindAttribLocation(f,0,n.index0AttributeName):!0===n.morphTargets&&i.bindAttribLocation(f,0,"position"),i.linkProgram(f),t.debug.checkShaderErrors){const t=i.getProgramInfoLog(f).trim(),e=i.getShaderInfoLog(_).trim(),n=i.getShaderInfoLog(b).trim();let r=!0,s=!0;if(!1===i.getProgramParameter(f,35714)){r=!1;const e=vc(i,_,"vertex"),n=vc(i,b,"fragment");console.error("THREE.WebGLProgram: shader error: ",i.getError(),"35715",i.getProgramParameter(f,35715),"gl.getProgramInfoLog",t,e,n)}else""!==t?console.warn("THREE.WebGLProgram: gl.getProgramInfoLog()",t):""!==e&&""!==n||(s=!1);s&&(this.diagnostics={runnable:r,programLog:t,vertexShader:{log:e,prefix:g},fragmentShader:{log:n,prefix:x}})}let w,M;return i.deleteShader(_),i.deleteShader(b),this.getUniforms=function(){return void 0===w&&(w=new dc(i,f)),w},this.getAttributes=function(){return void 0===M&&(M=Sc(i,f)),M},this.destroy=function(){r.releaseStatesOfProgram(this),i.deleteProgram(f),this.program=void 0},this.name=n.shaderName,this.id=fc++,this.cacheKey=e,this.usedTimes=1,this.program=f,this.vertexShader=_,this.fragmentShader=b,this}function kc(t,e,n,r,i,s){const o=[],a=r.isWebGL2,l=r.logarithmicDepthBuffer,c=r.floatVertexTextures,h=r.maxVertexUniforms,u=r.vertexTextures;let m=r.precision;const f={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",MeshPhongMaterial:"phong",MeshToonMaterial:"toon",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",MeshMatcapMaterial:"matcap",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow",SpriteMaterial:"sprite"},g=["precision","isWebGL2","supportsVertexTextures","outputEncoding","instancing","instancingColor","map","mapEncoding","matcap","matcapEncoding","envMap","envMapMode","envMapEncoding","envMapCubeUV","lightMap","lightMapEncoding","aoMap","emissiveMap","emissiveMapEncoding","bumpMap","normalMap","objectSpaceNormalMap","tangentSpaceNormalMap","clearcoatMap","clearcoatRoughnessMap","clearcoatNormalMap","displacementMap","specularMap","roughnessMap","metalnessMap","gradientMap","alphaMap","combine","vertexColors","vertexTangents","vertexUvs","uvsVertexOnly","fog","useFog","fogExp2","flatShading","sizeAttenuation","logarithmicDepthBuffer","skinning","maxBones","useVertexTexture","morphTargets","morphNormals","maxMorphTargets","maxMorphNormals","premultipliedAlpha","numDirLights","numPointLights","numSpotLights","numHemiLights","numRectAreaLights","numDirLightShadows","numPointLightShadows","numSpotLightShadows","shadowMapEnabled","shadowMapType","toneMapping","physicallyCorrectLights","alphaTest","doubleSided","flipSided","numClippingPlanes","numClipIntersection","depthPacking","dithering","sheen","transmissionMap"];function x(t){let e;return t&&t.isTexture?e=t.encoding:t&&t.isWebGLRenderTarget?(console.warn("THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead."),e=t.texture.encoding):e=Xe,e}return{getParameters:function(i,o,g,v,y){const _=v.fog,b=i.isMeshStandardMaterial?v.environment:null,w=e.get(i.envMap||b),M=f[i.type],S=y.isSkinnedMesh?function(t){const e=t.skeleton.bones;if(c)return 1024;{const t=h,n=Math.floor((t-20)/4),r=Math.min(n,e.length);return r<e.length?(console.warn("THREE.WebGLRenderer: Skeleton has "+e.length+" bones. This GPU supports "+r+"."),0):r}}(y):0;let T,E;if(null!==i.precision&&(m=r.getMaxPrecision(i.precision))!==i.precision&&console.warn("THREE.WebGLProgram.getParameters:",i.precision,"not supported, using",m,"instead."),M){const t=tl[M];T=t.vertexShader,E=t.fragmentShader}else T=i.vertexShader,E=i.fragmentShader;const A=t.getRenderTarget();return{isWebGL2:a,shaderID:M,shaderName:i.type,vertexShader:T,fragmentShader:E,defines:i.defines,isRawShaderMaterial:!0===i.isRawShaderMaterial,glslVersion:i.glslVersion,precision:m,instancing:!0===y.isInstancedMesh,instancingColor:!0===y.isInstancedMesh&&null!==y.instanceColor,supportsVertexTextures:u,outputEncoding:null!==A?x(A.texture):t.outputEncoding,map:!!i.map,mapEncoding:x(i.map),matcap:!!i.matcap,matcapEncoding:x(i.matcap),envMap:!!w,envMapMode:w&&w.mapping,envMapEncoding:x(w),envMapCubeUV:!!w&&(w.mapping===ot||w.mapping===at),lightMap:!!i.lightMap,lightMapEncoding:x(i.lightMap),aoMap:!!i.aoMap,emissiveMap:!!i.emissiveMap,emissiveMapEncoding:x(i.emissiveMap),bumpMap:!!i.bumpMap,normalMap:!!i.normalMap,objectSpaceNormalMap:i.normalMapType===sn,tangentSpaceNormalMap:i.normalMapType===rn,clearcoatMap:!!i.clearcoatMap,clearcoatRoughnessMap:!!i.clearcoatRoughnessMap,clearcoatNormalMap:!!i.clearcoatNormalMap,displacementMap:!!i.displacementMap,roughnessMap:!!i.roughnessMap,metalnessMap:!!i.metalnessMap,specularMap:!!i.specularMap,alphaMap:!!i.alphaMap,gradientMap:!!i.gradientMap,sheen:!!i.sheen,transmissionMap:!!i.transmissionMap,combine:i.combine,vertexTangents:i.normalMap&&i.vertexTangents,vertexColors:i.vertexColors,vertexUvs:!!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatMap||i.clearcoatRoughnessMap||i.clearcoatNormalMap||i.displacementMap||i.transmissionMap),uvsVertexOnly:!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatNormalMap||i.transmissionMap||!i.displacementMap),fog:!!_,useFog:i.fog,fogExp2:_&&_.isFogExp2,flatShading:!!i.flatShading,sizeAttenuation:i.sizeAttenuation,logarithmicDepthBuffer:l,skinning:i.skinning&&S>0,maxBones:S,useVertexTexture:c,morphTargets:i.morphTargets,morphNormals:i.morphNormals,maxMorphTargets:t.maxMorphTargets,maxMorphNormals:t.maxMorphNormals,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numClippingPlanes:s.numPlanes,numClipIntersection:s.numIntersection,dithering:i.dithering,shadowMapEnabled:t.shadowMap.enabled&&g.length>0,shadowMapType:t.shadowMap.type,toneMapping:i.toneMapped?t.toneMapping:Z,physicallyCorrectLights:t.physicallyCorrectLights,premultipliedAlpha:i.premultipliedAlpha,alphaTest:i.alphaTest,doubleSided:i.side===d,flipSided:i.side===p,depthPacking:void 0!==i.depthPacking&&i.depthPacking,index0AttributeName:i.index0AttributeName,extensionDerivatives:i.extensions&&i.extensions.derivatives,extensionFragDepth:i.extensions&&i.extensions.fragDepth,extensionDrawBuffers:i.extensions&&i.extensions.drawBuffers,extensionShaderTextureLOD:i.extensions&&i.extensions.shaderTextureLOD,rendererExtensionFragDepth:a||n.has("EXT_frag_depth"),rendererExtensionDrawBuffers:a||n.has("WEBGL_draw_buffers"),rendererExtensionShaderTextureLod:a||n.has("EXT_shader_texture_lod"),customProgramCacheKey:i.customProgramCacheKey()}},getProgramCacheKey:function(e){const n=[];if(e.shaderID?n.push(e.shaderID):(n.push(e.fragmentShader),n.push(e.vertexShader)),void 0!==e.defines)for(const t in e.defines)n.push(t),n.push(e.defines[t]);if(!1===e.isRawShaderMaterial){for(let t=0;t<g.length;t++)n.push(e[g[t]]);n.push(t.outputEncoding),n.push(t.gammaFactor)}return n.push(e.customProgramCacheKey),n.join()},getUniforms:function(t){const e=f[t.type];let n;if(e){const t=tl[e];n=ps.clone(t.uniforms)}else n=t.uniforms;return n},acquireProgram:function(e,n){let r;for(let t=0,i=o.length;t<i;t++){const e=o[t];if(e.cacheKey===n){++(r=e).usedTimes;break}}return void 0===r&&(r=new Uc(t,n,e,i),o.push(r)),r},releaseProgram:function(t){if(0==--t.usedTimes){const e=o.indexOf(t);o[e]=o[o.length-1],o.pop(),t.destroy()}},programs:o}}function Vc(){let t=new WeakMap;return{get:function(e){let n=t.get(e);return void 0===n&&(n={},t.set(e,n)),n},remove:function(e){t.delete(e)},update:function(e,n,r){t.get(e)[n]=r},dispose:function(){t=new WeakMap}}}function Wc(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.program!==e.program?t.program.id-e.program.id:t.material.id!==e.material.id?t.material.id-e.material.id:t.z!==e.z?t.z-e.z:t.id-e.id}function jc(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:t.id-e.id}function qc(t){const e=[];let n=0;const r=[],i=[],s={id:-1};function o(r,i,o,a,l,c){let h=e[n];const u=t.get(o);return void 0===h?(h={id:r.id,object:r,geometry:i,material:o,program:u.program||s,groupOrder:a,renderOrder:r.renderOrder,z:l,group:c},e[n]=h):(h.id=r.id,h.object=r,h.geometry=i,h.material=o,h.program=u.program||s,h.groupOrder=a,h.renderOrder=r.renderOrder,h.z=l,h.group=c),n++,h}return{opaque:r,transparent:i,init:function(){n=0,r.length=0,i.length=0},push:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).push(c)},unshift:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).unshift(c)},finish:function(){for(let t=n,r=e.length;t<r;t++){const n=e[t];if(null===n.id)break;n.id=null,n.object=null,n.geometry=null,n.material=null,n.program=null,n.group=null}},sort:function(t,e){r.length>1&&r.sort(t||Wc),i.length>1&&i.sort(e||jc)}}}function Xc(t){let e=new WeakMap;return{get:function(n,r){let i;return!1===e.has(n)?(i=new qc(t),e.set(n,[i])):r>=e.get(n).length?(i=new qc(t),e.get(n).push(i)):i=e.get(n)[r],i},dispose:function(){e=new WeakMap}}}function Yc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":n={direction:new Yn,color:new xi};break;case"SpotLight":n={position:new Yn,direction:new Yn,color:new xi,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":n={position:new Yn,color:new xi,distance:0,decay:0};break;case"HemisphereLight":n={direction:new Yn,skyColor:new xi,groundColor:new xi};break;case"RectAreaLight":n={color:new xi,position:new Yn,halfWidth:new Yn,halfHeight:new Yn}}return t[e.id]=n,n}}}function Zc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":case"SpotLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On};break;case"PointLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On,shadowCameraNear:1,shadowCameraFar:1e3}}return t[e.id]=n,n}}}let Jc=0;function Qc(t,e){return(e.castShadow?1:0)-(t.castShadow?1:0)}function Kc(t,e){const n=new Yc,r=Zc(),i={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadow:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]};for(let l=0;l<9;l++)i.probe.push(new Yn);const s=new Yn,o=new wr,a=new wr;return{setup:function(s){let o=0,a=0,l=0;for(let t=0;t<9;t++)i.probe[t].set(0,0,0);let c=0,h=0,u=0,p=0,d=0,m=0,f=0,g=0;s.sort(Qc);for(let t=0,e=s.length;t<e;t++){const e=s[t],x=e.color,v=e.intensity,y=e.distance,_=e.shadow&&e.shadow.map?e.shadow.map.texture:null;if(e.isAmbientLight)o+=x.r*v,a+=x.g*v,l+=x.b*v;else if(e.isLightProbe)for(let t=0;t<9;t++)i.probe[t].addScaledVector(e.sh.coefficients[t],v);else if(e.isDirectionalLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.directionalShadow[c]=n,i.directionalShadowMap[c]=_,i.directionalShadowMatrix[c]=e.shadow.matrix,m++}i.directional[c]=t,c++}else if(e.isSpotLight){const t=n.get(e);if(t.position.setFromMatrixPosition(e.matrixWorld),t.color.copy(x).multiplyScalar(v),t.distance=y,t.coneCos=Math.cos(e.angle),t.penumbraCos=Math.cos(e.angle*(1-e.penumbra)),t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.spotShadow[u]=n,i.spotShadowMap[u]=_,i.spotShadowMatrix[u]=e.shadow.matrix,g++}i.spot[u]=t,u++}else if(e.isRectAreaLight){const t=n.get(e);t.color.copy(x).multiplyScalar(v),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),i.rectArea[p]=t,p++}else if(e.isPointLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),t.distance=e.distance,t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,n.shadowCameraNear=t.camera.near,n.shadowCameraFar=t.camera.far,i.pointShadow[h]=n,i.pointShadowMap[h]=_,i.pointShadowMatrix[h]=e.shadow.matrix,f++}i.point[h]=t,h++}else if(e.isHemisphereLight){const t=n.get(e);t.skyColor.copy(e.color).multiplyScalar(v),t.groundColor.copy(e.groundColor).multiplyScalar(v),i.hemi[d]=t,d++}}p>0&&(e.isWebGL2?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_float_linear")?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_half_float_linear")?(i.rectAreaLTC1=$a.LTC_HALF_1,i.rectAreaLTC2=$a.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.")),i.ambient[0]=o,i.ambient[1]=a,i.ambient[2]=l;const x=i.hash;x.directionalLength===c&&x.pointLength===h&&x.spotLength===u&&x.rectAreaLength===p&&x.hemiLength===d&&x.numDirectionalShadows===m&&x.numPointShadows===f&&x.numSpotShadows===g||(i.directional.length=c,i.spot.length=u,i.rectArea.length=p,i.point.length=h,i.hemi.length=d,i.directionalShadow.length=m,i.directionalShadowMap.length=m,i.pointShadow.length=f,i.pointShadowMap.length=f,i.spotShadow.length=g,i.spotShadowMap.length=g,i.directionalShadowMatrix.length=m,i.pointShadowMatrix.length=f,i.spotShadowMatrix.length=g,x.directionalLength=c,x.pointLength=h,x.spotLength=u,x.rectAreaLength=p,x.hemiLength=d,x.numDirectionalShadows=m,x.numPointShadows=f,x.numSpotShadows=g,i.version=Jc++)},setupView:function(t,e){let n=0,r=0,l=0,c=0,h=0;const u=e.matrixWorldInverse;for(let p=0,d=t.length;p<d;p++){const e=t[p];if(e.isDirectionalLight){const t=i.directional[n];t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),n++}else if(e.isSpotLight){const t=i.spot[l];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),l++}else if(e.isRectAreaLight){const t=i.rectArea[c];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),a.identity(),o.copy(e.matrixWorld),o.premultiply(u),a.extractRotation(o),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),t.halfWidth.applyMatrix4(a),t.halfHeight.applyMatrix4(a),c++}else if(e.isPointLight){const t=i.point[r];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),r++}else if(e.isHemisphereLight){const t=i.hemi[h];t.direction.setFromMatrixPosition(e.matrixWorld),t.direction.transformDirection(u),t.direction.normalize(),h++}}},state:i}}function $c(t,e){const n=new Kc(t,e),r=[],i=[];return{init:function(){r.length=0,i.length=0},state:{lightsArray:r,shadowsArray:i,lights:n},setupLights:function(){n.setup(r)},setupLightsView:function(t){n.setupView(r,t)},pushLight:function(t){r.push(t)},pushShadow:function(t){i.push(t)}}}function th(t,e){let n=new WeakMap;return{get:function(r,i=0){let s;return!1===n.has(r)?(s=new $c(t,e),n.set(r,[s])):i>=n.get(r).length?(s=new $c(t,e),n.get(r).push(s)):s=n.get(r)[i],s},dispose:function(){n=new WeakMap}}}class eh extends hi{constructor(t){super(),this.type="MeshDepthMaterial",this.depthPacking=en,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.depthPacking=t.depthPacking,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this}}exports.MeshDepthMaterial=eh,eh.prototype.isMeshDepthMaterial=!0;class nh extends hi{constructor(t){super(),this.type="MeshDistanceMaterial",this.referencePosition=new Yn,this.nearDistance=1,this.farDistance=1e3,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.referencePosition.copy(t.referencePosition),this.nearDistance=t.nearDistance,this.farDistance=t.farDistance,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this}}exports.MeshDistanceMaterial=nh,nh.prototype.isMeshDistanceMaterial=!0;var rh="uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}",ih="void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";function sh(t,e,n){let r=new Es;const i=new On,s=new On,o=new Wn,a=[],c=[],m={},f={0:p,1:u,2:d},x=new fs({defines:{SAMPLE_RATE:.25,HALF_SAMPLE_RATE:1/8},uniforms:{shadow_pass:{value:null},resolution:{value:new On},radius:{value:4}},vertexShader:ih,fragmentShader:rh}),v=x.clone();v.defines.HORIZONTAL_PASS=1;const y=new ki;y.setAttribute("position",new bi(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const _=new os(y,x),b=this;function w(n,r){const i=e.update(_);x.uniforms.shadow_pass.value=n.map.texture,x.uniforms.resolution.value=n.mapSize,x.uniforms.radius.value=n.radius,t.setRenderTarget(n.mapPass),t.clear(),t.renderBufferDirect(r,null,i,x,_,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,t.setRenderTarget(n.map),t.clear(),t.renderBufferDirect(r,null,i,v,_,null)}function M(t,e,n){const r=t<<0|e<<1|n<<2;let i=a[r];return void 0===i&&(i=new eh({depthPacking:nn,morphTargets:t,skinning:e}),a[r]=i),i}function S(t,e,n){const r=t<<0|e<<1|n<<2;let i=c[r];return void 0===i&&(i=new nh({morphTargets:t,skinning:e}),c[r]=i),i}function T(e,n,r,i,s,o,a){let l=null,c=M,u=e.customDepthMaterial;if(!0===i.isPointLight&&(c=S,u=e.customDistanceMaterial),void 0===u){let t=!1;!0===r.morphTargets&&(t=n.morphAttributes&&n.morphAttributes.position&&n.morphAttributes.position.length>0);let i=!1;!0===e.isSkinnedMesh&&(!0===r.skinning?i=!0:console.warn("THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:",e)),l=c(t,i,!0===e.isInstancedMesh)}else l=u;if(t.localClippingEnabled&&!0===r.clipShadows&&0!==r.clippingPlanes.length){const t=l.uuid,e=r.uuid;let n=m[t];void 0===n&&(n={},m[t]=n);let i=n[e];void 0===i&&(i=l.clone(),n[e]=i),l=i}return l.visible=r.visible,l.wireframe=r.wireframe,l.side=a===h?null!==r.shadowSide?r.shadowSide:r.side:null!==r.shadowSide?r.shadowSide:f[r.side],l.clipShadows=r.clipShadows,l.clippingPlanes=r.clippingPlanes,l.clipIntersection=r.clipIntersection,l.wireframeLinewidth=r.wireframeLinewidth,l.linewidth=r.linewidth,!0===i.isPointLight&&!0===l.isMeshDistanceMaterial&&(l.referencePosition.setFromMatrixPosition(i.matrixWorld),l.nearDistance=s,l.farDistance=o),l}function E(n,i,s,o,a){if(!1===n.visible)return;if(n.layers.test(i.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&a===h)&&(!n.frustumCulled||r.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(s.matrixWorldInverse,n.matrixWorld);const r=e.update(n),i=n.material;if(Array.isArray(i)){const e=r.groups;for(let l=0,c=e.length;l<c;l++){const c=e[l],h=i[c.materialIndex];if(h&&h.visible){const e=T(n,r,h,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,c)}}}else if(i.visible){const e=T(n,r,i,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,null)}}const l=n.children;for(let t=0,e=l.length;t<e;t++)E(l[t],i,s,o,a)}this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=l,this.render=function(e,a,l){if(!1===b.enabled)return;if(!1===b.autoUpdate&&!1===b.needsUpdate)return;if(0===e.length)return;const c=t.getRenderTarget(),u=t.getActiveCubeFace(),p=t.getActiveMipmapLevel(),d=t.state;d.setBlending(g),d.buffers.color.setClear(1,1,1,1),d.buffers.depth.setTest(!0),d.setScissorTest(!1);for(let m=0,f=e.length;m<f;m++){const c=e[m],u=c.shadow;if(void 0===u){console.warn("THREE.WebGLShadowMap:",c,"has no shadow.");continue}if(!1===u.autoUpdate&&!1===u.needsUpdate)continue;i.copy(u.mapSize);const p=u.getFrameExtents();if(i.multiply(p),s.copy(u.mapSize),(i.x>n||i.y>n)&&(i.x>n&&(s.x=Math.floor(n/p.x),i.x=s.x*p.x,u.mapSize.x=s.x),i.y>n&&(s.y=Math.floor(n/p.y),i.y=s.y*p.y,u.mapSize.y=s.y)),null===u.map&&!u.isPointLightShadow&&this.type===h){const t={minFilter:gt,magFilter:gt,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.mapPass=new jn(i.x,i.y,t),u.camera.updateProjectionMatrix()}if(null===u.map){const t={minFilter:ut,magFilter:ut,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.camera.updateProjectionMatrix()}t.setRenderTarget(u.map),t.clear();const f=u.getViewportCount();for(let t=0;t<f;t++){const e=u.getViewport(t);o.set(s.x*e.x,s.y*e.y,s.x*e.z,s.y*e.w),d.viewport(o),u.updateMatrices(c,t),r=u.getFrustum(),E(a,l,u.camera,c,this.type)}u.isPointLightShadow||this.type!==h||w(u,l),u.needsUpdate=!1}b.needsUpdate=!1,t.setRenderTarget(c,u,p)}}function oh(t,e,n){const o=n.isWebGL2;const a=new function(){let e=!1;const n=new Wn;let r=null;const i=new Wn(0,0,0,0);return{setMask:function(n){r===n||e||(t.colorMask(n,n,n,n),r=n)},setLocked:function(t){e=t},setClear:function(e,r,s,o,a){!0===a&&(e*=o,r*=o,s*=o),n.set(e,r,s,o),!1===i.equals(n)&&(t.clearColor(e,r,s,o),i.copy(n))},reset:function(){e=!1,r=null,i.set(-1,0,0,0)}}},l=new function(){let e=!1,n=null,r=null,i=null;return{setTest:function(t){t?mt(2929):ft(2929)},setMask:function(r){n===r||e||(t.depthMask(r),n=r)},setFunc:function(e){if(r!==e){if(e)switch(e){case 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ah(t,e,n,r,i,s,o){const a=i.isWebGL2,l=i.maxTextures,c=i.maxCubemapSize,h=i.maxTextureSize,u=i.maxSamples,p=new WeakMap;let d,m=!1;try{m="undefined"!=typeof OffscreenCanvas&&null!==new OffscreenCanvas(1,1).getContext("2d")}catch(z){}function f(t,e){return m?new OffscreenCanvas(t,e):document.createElementNS("http://www.w3.org/1999/xhtml","canvas")}function g(t,e,n,r){let i=1;if((t.width>r||t.height>r)&&(i=r/Math.max(t.width,t.height)),i<1||!0===e){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const r=e?Fn.floorPowerOfTwo:Math.floor,s=r(i*t.width),o=r(i*t.height);void 0===d&&(d=f(s,o));const a=n?f(s,o):d;return a.width=s,a.height=o,a.getContext("2d").drawImage(t,0,0,s,o),console.warn("THREE.WebGLRenderer: Texture has been resized from ("+t.width+"x"+t.height+") to ("+s+"x"+o+")."),a}return"data"in t&&console.warn("THREE.WebGLRenderer: 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r=b[e];n.texImage2D(34069+t,e+1,f,d,m,r.image[t])}}e.__maxMipLevel=b.length}v(r,p)&&y(34067,r,u.width,u.height);e.__version=r.version,r.onUpdate&&r.onUpdate(r)}(o,e,i):(n.activeTexture(33984+i),n.bindTexture(34067,o.__webglTexture))}const A={[lt]:10497,[ct]:33071,[ht]:33648},L={[ut]:9728,[pt]:9984,[mt]:9986,[gt]:9729,[xt]:9985,[yt]:9987};function R(n,s,o){if(o?(t.texParameteri(n,10242,A[s.wrapS]),t.texParameteri(n,10243,A[s.wrapT]),32879!==n&&35866!==n||t.texParameteri(n,32882,A[s.wrapR]),t.texParameteri(n,10240,L[s.magFilter]),t.texParameteri(n,10241,L[s.minFilter])):(t.texParameteri(n,10242,33071),t.texParameteri(n,10243,33071),32879!==n&&35866!==n||t.texParameteri(n,32882,33071),s.wrapS===ct&&s.wrapT===ct||console.warn("THREE.WebGLRenderer: Texture is not power of two. 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l=function(t){return!a&&(t.wrapS!==ct||t.wrapT!==ct||t.minFilter!==ut&&t.minFilter!==gt)}(r)&&!1===x(r.image),c=g(r.image,l,!1,h),u=x(c)||a,p=s.convert(r.format);let d,m=s.convert(r.type),f=_(r.internalFormat,p,m);R(o,r,u);const b=r.mipmaps;if(r.isDepthTexture)f=6402,a?f=r.type===At?36012:r.type===Et?33190:r.type===Dt?35056:33189:r.type===At&&console.error("WebGLRenderer: Floating point depth texture requires WebGL2."),r.format===Gt&&6402===f&&r.type!==St&&r.type!==Et&&(console.warn("THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture."),r.type=St,m=s.convert(r.type)),r.format===Ht&&6402===f&&(f=34041,r.type!==Dt&&(console.warn("THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture."),r.type=Dt,m=s.convert(r.type))),n.texImage2D(3553,0,f,c.width,c.height,0,p,m,null);else if(r.isDataTexture)if(b.length>0&&u){for(let 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n.texImage2D(3553,0,f,p,m,c),e.__maxMipLevel=0;v(r,u)&&y(o,r,c.width,c.height),e.__version=r.version,r.onUpdate&&r.onUpdate(r)}function D(e,i,o,a){const l=i.texture,c=s.convert(l.format),h=s.convert(l.type),u=_(l.internalFormat,c,h);32879===a||35866===a?n.texImage3D(a,0,u,i.width,i.height,i.depth,0,c,h,null):n.texImage2D(a,0,u,i.width,i.height,0,c,h,null),t.bindFramebuffer(36160,e),t.framebufferTexture2D(36160,o,a,r.get(l).__webglTexture,0),t.bindFramebuffer(36160,null)}function I(e,n,r){if(t.bindRenderbuffer(36161,e),n.depthBuffer&&!n.stencilBuffer){let i=33189;if(r){const e=n.depthTexture;e&&e.isDepthTexture&&(e.type===At?i=36012:e.type===Et&&(i=33190));const r=N(n);t.renderbufferStorageMultisample(36161,r,i,n.width,n.height)}else t.renderbufferStorage(36161,i,n.width,n.height);t.framebufferRenderbuffer(36160,36096,36161,e)}else if(n.depthBuffer&&n.stencilBuffer){if(r){const e=N(n);t.renderbufferStorageMultisample(36161,e,35056,n.width,n.height)}else 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n.COMPRESSED_RGBA_S3TC_DXT3_EXT;if(t===Jt)return n.COMPRESSED_RGBA_S3TC_DXT5_EXT}if(t===Qt||t===Kt||t===$t||t===te){if(null===(n=e.get("WEBGL_compressed_texture_pvrtc")))return null;if(t===Qt)return n.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;if(t===Kt)return n.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;if(t===$t)return n.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;if(t===te)return n.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG}if(t===ee)return null!==(n=e.get("WEBGL_compressed_texture_etc1"))?n.COMPRESSED_RGB_ETC1_WEBGL:null;if((t===ne||t===re)&&null!==(n=e.get("WEBGL_compressed_texture_etc"))){if(t===ne)return n.COMPRESSED_RGB8_ETC2;if(t===re)return n.COMPRESSED_RGBA8_ETC2_EAC}return 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e=c.get(t.inputSource);e&&e.dispatchEvent({type:t.type,data:t.inputSource})}function x(){c.forEach(function(t,e){t.disconnect(e)}),c.clear(),m=null,f=null,t.setFramebuffer(null),t.setRenderTarget(t.getRenderTarget()),M.stop(),n.isPresenting=!1,n.dispatchEvent({type:"sessionend"})}function v(t){const e=r.inputSources;for(let n=0;n<l.length;n++)c.set(e[n],l[n]);for(let n=0;n<t.removed.length;n++){const e=t.removed[n],r=c.get(e);r&&(r.dispatchEvent({type:"disconnected",data:e}),c.delete(e))}for(let n=0;n<t.added.length;n++){const e=t.added[n],r=c.get(e);r&&r.dispatchEvent({type:"connected",data:e})}}this.enabled=!1,this.isPresenting=!1,this.getController=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getTargetRaySpace()},this.getControllerGrip=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getGripSpace()},this.getHand=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getHandSpace()},this.setFramebufferScaleFactor=function(t){i=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(t){o=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return s},this.getSession=function(){return r},this.setSession=async function(t){if(null!==(r=t)){r.addEventListener("select",g),r.addEventListener("selectstart",g),r.addEventListener("selectend",g),r.addEventListener("squeeze",g),r.addEventListener("squeezestart",g),r.addEventListener("squeezeend",g),r.addEventListener("end",x),r.addEventListener("inputsourceschange",v);const t=e.getContextAttributes();!0!==t.xrCompatible&&await e.makeXRCompatible();const a={antialias:t.antialias,alpha:t.alpha,depth:t.depth,stencil:t.stencil,framebufferScaleFactor:i},l=new XRWebGLLayer(r,e,a);r.updateRenderState({baseLayer:l}),s=await r.requestReferenceSpace(o),M.setContext(r),M.start(),n.isPresenting=!0,n.dispatchEvent({type:"sessionstart"})}};const y=new Yn,_=new Yn;function b(t,e){null===e?t.matrixWorld.copy(t.matrix):t.matrixWorld.multiplyMatrices(e.matrixWorld,t.matrix),t.matrixWorldInverse.copy(t.matrixWorld).invert()}this.getCamera=function(t){d.near=u.near=h.near=t.near,d.far=u.far=h.far=t.far,m===d.near&&f===d.far||(r.updateRenderState({depthNear:d.near,depthFar:d.far}),m=d.near,f=d.far);const e=t.parent,n=d.cameras;b(d,e);for(let r=0;r<n.length;r++)b(n[r],e);t.matrixWorld.copy(d.matrixWorld),t.matrix.copy(d.matrix),t.matrix.decompose(t.position,t.quaternion,t.scale);const i=t.children;for(let r=0,s=i.length;r<s;r++)i[r].updateMatrixWorld(!0);return 2===n.length?function(t,e,n){y.setFromMatrixPosition(e.matrixWorld),_.setFromMatrixPosition(n.matrixWorld);const 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r=e[t],s=n.getViewport(r),o=p[t];o.matrix.fromArray(r.transform.matrix),o.projectionMatrix.fromArray(r.projectionMatrix),o.viewport.set(s.x,s.y,s.width,s.height),0===t&&d.matrix.copy(o.matrix),!0===i&&d.cameras.push(o)}}const i=r.inputSources;for(let t=0;t<l.length;t++){const e=l[t],r=i[t];e.update(r,n,s)}w&&w(e,n)}),this.setAnimationLoop=function(t){w=t},this.dispose=function(){}}function dh(t){function e(e,n){e.opacity.value=n.opacity,n.color&&e.diffuse.value.copy(n.color),n.emissive&&e.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),n.map&&(e.map.value=n.map),n.alphaMap&&(e.alphaMap.value=n.alphaMap),n.specularMap&&(e.specularMap.value=n.specularMap);const r=t.get(n).envMap;if(r){e.envMap.value=r,e.flipEnvMap.value=r.isCubeTexture&&r._needsFlipEnvMap?-1:1,e.reflectivity.value=n.reflectivity,e.refractionRatio.value=n.refractionRatio;const i=t.get(r).__maxMipLevel;void 0!==i&&(e.maxMipLevel.value=i)}let i,s;n.lightMap&&(e.lightMap.value=n.lightMap,e.lightMapIntensity.value=n.lightMapIntensity),n.aoMap&&(e.aoMap.value=n.aoMap,e.aoMapIntensity.value=n.aoMapIntensity),n.map?i=n.map:n.specularMap?i=n.specularMap:n.displacementMap?i=n.displacementMap:n.normalMap?i=n.normalMap:n.bumpMap?i=n.bumpMap:n.roughnessMap?i=n.roughnessMap:n.metalnessMap?i=n.metalnessMap:n.alphaMap?i=n.alphaMap:n.emissiveMap?i=n.emissiveMap:n.clearcoatMap?i=n.clearcoatMap:n.clearcoatNormalMap?i=n.clearcoatNormalMap:n.clearcoatRoughnessMap&&(i=n.clearcoatRoughnessMap),void 0!==i&&(i.isWebGLRenderTarget&&(i=i.texture),!0===i.matrixAutoUpdate&&i.updateMatrix(),e.uvTransform.value.copy(i.matrix)),n.aoMap?s=n.aoMap:n.lightMap&&(s=n.lightMap),void 0!==s&&(s.isWebGLRenderTarget&&(s=s.texture),!0===s.matrixAutoUpdate&&s.updateMatrix(),e.uv2Transform.value.copy(s.matrix))}function 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Mt(t,e,n,r,i,s){if(t.onBeforeRender(f,e,n,r,i,s),t.modelViewMatrix.multiplyMatrices(n.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),t.isImmediateRenderObject){const r=Tt(n,e,i,t);W.setMaterial(i),ct.reset(),function(t,e){t.render(function(t){f.renderBufferImmediate(t,e)})}(t,r)}else f.renderBufferDirect(n,e,r,i,t,s);t.onAfterRender(f,e,n,r,i,s)}function St(t,e,n){!0!==e.isScene&&(e=H);const r=q.get(t),i=p.state.lights,s=p.state.shadowsArray,o=i.state.version,a=$.getParameters(t,i.state,s,e,n),l=$.getProgramCacheKey(a);let c=r.program,h=!0;if(r.environment=t.isMeshStandardMaterial?e.environment:null,r.fog=e.fog,r.envMap=Y.get(t.envMap||r.environment),void 0===c)t.addEventListener("dispose",xt);else if(c.cacheKey!==l)vt(t);else if(r.lightsStateVersion!==o)h=!1;else{if(void 0!==a.shaderID)return;h=!1}h&&(a.uniforms=$.getUniforms(t),t.onBeforeCompile(a,f),c=$.acquireProgram(a,l),r.program=c,r.uniforms=a.uniforms,r.outputEncoding=a.outputEncoding);const u=r.uniforms;(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(r.numClippingPlanes=rt.numPlanes,r.numIntersection=rt.numIntersection,u.clippingPlanes=rt.uniform),r.needsLights=function(t){return t.isMeshLambertMaterial||t.isMeshToonMaterial||t.isMeshPhongMaterial||t.isMeshStandardMaterial||t.isShadowMaterial||t.isShaderMaterial&&!0===t.lights}(t),r.lightsStateVersion=o,r.needsLights&&(u.ambientLightColor.value=i.state.ambient,u.lightProbe.value=i.state.probe,u.directionalLights.value=i.state.directional,u.directionalLightShadows.value=i.state.directionalShadow,u.spotLights.value=i.state.spot,u.spotLightShadows.value=i.state.spotShadow,u.rectAreaLights.value=i.state.rectArea,u.ltc_1.value=i.state.rectAreaLTC1,u.ltc_2.value=i.state.rectAreaLTC2,u.pointLights.value=i.state.point,u.pointLightShadows.value=i.state.pointShadow,u.hemisphereLights.value=i.state.hemi,u.directionalShadowMap.value=i.state.directionalShadowMap,u.directionalShadowMatrix.value=i.state.directionalShadowMatrix,u.spotShadowMap.value=i.state.spotShadowMap,u.spotShadowMatrix.value=i.state.spotShadowMatrix,u.pointShadowMap.value=i.state.pointShadowMap,u.pointShadowMatrix.value=i.state.pointShadowMatrix);const d=r.program.getUniforms(),m=dc.seqWithValue(d.seq,u);r.uniformsList=m}function Tt(t,e,n,r){!0!==e.isScene&&(e=H),X.resetTextureUnits();const i=e.fog,s=n.isMeshStandardMaterial?e.environment:null,o=null===_?f.outputEncoding:_.texture.encoding,a=Y.get(n.envMap||s),l=q.get(n),c=p.state.lights;if(!0===F&&(!0===O||t!==M)){const e=t===M&&n.id===w;rt.setState(n,t,e)}n.version===l.__version?n.fog&&l.fog!==i?St(n,e,r):l.environment!==s?St(n,e,r):l.needsLights&&l.lightsStateVersion!==c.state.version?St(n,e,r):void 0===l.numClippingPlanes||l.numClippingPlanes===rt.numPlanes&&l.numIntersection===rt.numIntersection?l.outputEncoding!==o?St(n,e,r):l.envMap!==a&&St(n,e,r):St(n,e,r):(St(n,e,r),l.__version=n.version);let h=!1,u=!1,d=!1;const m=l.program,g=m.getUniforms(),x=l.uniforms;if(W.useProgram(m.program)&&(h=!0,u=!0,d=!0),n.id!==w&&(w=n.id,u=!0),h||M!==t){if(g.setValue(ht,"projectionMatrix",t.projectionMatrix),V.logarithmicDepthBuffer&&g.setValue(ht,"logDepthBufFC",2/(Math.log(t.far+1)/Math.LN2)),M!==t&&(M=t,u=!0,d=!0),n.isShaderMaterial||n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshStandardMaterial||n.envMap){const e=g.map.cameraPosition;void 0!==e&&e.setValue(ht,G.setFromMatrixPosition(t.matrixWorld))}(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial)&&g.setValue(ht,"isOrthographic",!0===t.isOrthographicCamera),(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial||n.isShadowMaterial||n.skinning)&&g.setValue(ht,"viewMatrix",t.matrixWorldInverse)}if(n.skinning){g.setOptional(ht,r,"bindMatrix"),g.setOptional(ht,r,"bindMatrixInverse");const t=r.skeleton;if(t){const e=t.bones;if(V.floatVertexTextures){if(null===t.boneTexture){let n=Math.sqrt(4*e.length);n=Fn.ceilPowerOfTwo(n),n=Math.max(n,4);const r=new Float32Array(n*n*4);r.set(t.boneMatrices);const i=new Ms(r,n,n,Nt,At);t.boneMatrices=r,t.boneTexture=i,t.boneTextureSize=n}g.setValue(ht,"boneTexture",t.boneTexture,X),g.setValue(ht,"boneTextureSize",t.boneTextureSize)}else g.setOptional(ht,t,"boneMatrices")}}var v,y;return(u||l.receiveShadow!==r.receiveShadow)&&(l.receiveShadow=r.receiveShadow,g.setValue(ht,"receiveShadow",r.receiveShadow)),u&&(g.setValue(ht,"toneMappingExposure",f.toneMappingExposure),l.needsLights&&(y=d,(v=x).ambientLightColor.needsUpdate=y,v.lightProbe.needsUpdate=y,v.directionalLights.needsUpdate=y,v.directionalLightShadows.needsUpdate=y,v.pointLights.needsUpdate=y,v.pointLightShadows.needsUpdate=y,v.spotLights.needsUpdate=y,v.spotLightShadows.needsUpdate=y,v.rectAreaLights.needsUpdate=y,v.hemisphereLights.needsUpdate=y),i&&n.fog&&tt.refreshFogUniforms(x,i),tt.refreshMaterialUniforms(x,n,R,L),dc.upload(ht,l.uniformsList,x,X)),n.isShaderMaterial&&!0===n.uniformsNeedUpdate&&(dc.upload(ht,l.uniformsList,x,X),n.uniformsNeedUpdate=!1),n.isSpriteMaterial&&g.setValue(ht,"center",r.center),g.setValue(ht,"modelViewMatrix",r.modelViewMatrix),g.setValue(ht,"normalMatrix",r.normalMatrix),g.setValue(ht,"modelMatrix",r.matrixWorld),m}_t.setAnimationLoop(function(t){dt.isPresenting||yt&&yt(t)}),"undefined"!=typeof window&&_t.setContext(window),this.setAnimationLoop=function(t){yt=t,dt.setAnimationLoop(t),null===t?_t.stop():_t.start()},this.render=function(t,e){let n,r;if(void 0!==arguments[2]&&(console.warn("THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead."),n=arguments[2]),void 0!==arguments[3]&&(console.warn("THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead."),r=arguments[3]),void 0!==e&&!0!==e.isCamera)return void console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");if(!0===g)return;ct.resetDefaultState(),w=-1,M=null,!0===t.autoUpdate&&t.updateMatrixWorld(),null===e.parent&&e.updateMatrixWorld(),!0===dt.enabled&&!0===dt.isPresenting&&(e=dt.getCamera(e)),!0===t.isScene&&t.onBeforeRender(f,t,e,n||_),(p=nt.get(t,m.length)).init(),m.push(p),z.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),N.setFromProjectionMatrix(z),O=this.localClippingEnabled,F=rt.init(this.clippingPlanes,O,e),(u=et.get(t,d.length)).init(),d.push(u),function t(e,n,r,i){if(!1===e.visible)return;const s=e.layers.test(n.layers);if(s)if(e.isGroup)r=e.renderOrder;else if(e.isLOD)!0===e.autoUpdate&&e.update(n);else if(e.isLight)p.pushLight(e),e.castShadow&&p.pushShadow(e);else if(e.isSprite){if(!e.frustumCulled||N.intersectsSprite(e)){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;n.visible&&u.push(e,t,n,r,G.z,null)}}else if(e.isImmediateRenderObject)i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z),u.push(e,null,e.material,r,G.z,null);else if((e.isMesh||e.isLine||e.isPoints)&&(e.isSkinnedMesh&&e.skeleton.frame!==j.render.frame&&(e.skeleton.update(),e.skeleton.frame=j.render.frame),!e.frustumCulled||N.intersectsObject(e))){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;if(Array.isArray(n)){const i=t.groups;for(let s=0,o=i.length;s<o;s++){const o=i[s],a=n[o.materialIndex];a&&a.visible&&u.push(e,t,a,r,G.z,o)}}else n.visible&&u.push(e,t,n,r,G.z,null)}const o=e.children;for(let a=0,l=o.length;a<l;a++)t(o[a],n,r,i)}(t,e,0,f.sortObjects),u.finish(),!0===f.sortObjects&&u.sort(C,P),!0===F&&rt.beginShadows();const i=p.state.shadowsArray;mt.render(i,t,e),p.setupLights(),p.setupLightsView(e),!0===F&&rt.endShadows(),!0===this.info.autoReset&&this.info.reset(),void 0!==n&&this.setRenderTarget(n),it.render(u,t,e,r);const s=u.opaque,o=u.transparent;s.length>0&&wt(s,t,e),o.length>0&&wt(o,t,e),!0===t.isScene&&t.onAfterRender(f,t,e),null!==_&&(X.updateRenderTargetMipmap(_),X.updateMultisampleRenderTarget(_)),W.buffers.depth.setTest(!0),W.buffers.depth.setMask(!0),W.buffers.color.setMask(!0),W.setPolygonOffset(!1),m.pop(),p=m.length>0?m[m.length-1]:null,d.pop(),u=d.length>0?d[d.length-1]:null},this.setFramebuffer=function(t){x!==t&&null===_&&ht.bindFramebuffer(36160,t),x=t},this.getActiveCubeFace=function(){return v},this.getActiveMipmapLevel=function(){return y},this.getRenderTarget=function(){return _},this.setRenderTarget=function(t,e=0,n=0){_=t,v=e,y=n,t&&void 0===q.get(t).__webglFramebuffer&&X.setupRenderTarget(t);let r=x,i=!1,s=!1;if(t){const n=t.texture;(n.isDataTexture3D||n.isDataTexture2DArray)&&(s=!0);const o=q.get(t).__webglFramebuffer;t.isWebGLCubeRenderTarget?(r=o[e],i=!0):r=t.isWebGLMultisampleRenderTarget?q.get(t).__webglMultisampledFramebuffer:o,S.copy(t.viewport),T.copy(t.scissor),E=t.scissorTest}else S.copy(D).multiplyScalar(R).floor(),T.copy(I).multiplyScalar(R).floor(),E=B;if(b!==r&&(ht.bindFramebuffer(36160,r),b=r),W.viewport(S),W.scissor(T),W.setScissorTest(E),i){const r=q.get(t.texture);ht.framebufferTexture2D(36160,36064,34069+e,r.__webglTexture,n)}else if(s){const r=q.get(t.texture),i=e||0;ht.framebufferTextureLayer(36160,36064,r.__webglTexture,n||0,i)}},this.readRenderTargetPixels=function(t,e,n,r,i,s,o){if(!t||!t.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let a=q.get(t).__webglFramebuffer;if(t.isWebGLCubeRenderTarget&&void 0!==o&&(a=a[o]),a){let o=!1;a!==b&&(ht.bindFramebuffer(36160,a),o=!0);try{const a=t.texture,l=a.format,c=a.type;if(l!==Nt&&lt.convert(l)!==ht.getParameter(35739))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const h=c===Lt&&(k.has("EXT_color_buffer_half_float")||V.isWebGL2&&k.has("EXT_color_buffer_float"));if(!(c===bt||lt.convert(c)===ht.getParameter(35738)||c===At&&(V.isWebGL2||k.has("OES_texture_float")||k.has("WEBGL_color_buffer_float"))||h))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");36053===ht.checkFramebufferStatus(36160)?e>=0&&e<=t.width-r&&n>=0&&n<=t.height-i&&ht.readPixels(e,n,r,i,lt.convert(l),lt.convert(c),s):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.")}finally{o&&ht.bindFramebuffer(36160,b)}}},this.copyFramebufferToTexture=function(t,e,n=0){const r=Math.pow(2,-n),i=Math.floor(e.image.width*r),s=Math.floor(e.image.height*r),o=lt.convert(e.format);X.setTexture2D(e,0),ht.copyTexImage2D(3553,n,o,t.x,t.y,i,s,0),W.unbindTexture()},this.copyTextureToTexture=function(t,e,n,r=0){const i=e.image.width,s=e.image.height,o=lt.convert(n.format),a=lt.convert(n.type);X.setTexture2D(n,0),ht.pixelStorei(37440,n.flipY),ht.pixelStorei(37441,n.premultiplyAlpha),ht.pixelStorei(3317,n.unpackAlignment),e.isDataTexture?ht.texSubImage2D(3553,r,t.x,t.y,i,s,o,a,e.image.data):e.isCompressedTexture?ht.compressedTexSubImage2D(3553,r,t.x,t.y,e.mipmaps[0].width,e.mipmaps[0].height,o,e.mipmaps[0].data):ht.texSubImage2D(3553,r,t.x,t.y,o,a,e.image),0===r&&n.generateMipmaps&&ht.generateMipmap(3553),W.unbindTexture()},this.copyTextureToTexture3D=function(t,e,n,r,i=0){if(f.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const{width:s,height:o,data:a}=n.image,l=lt.convert(r.format),c=lt.convert(r.type);let h;if(r.isDataTexture3D)X.setTexture3D(r,0),h=32879;else{if(!r.isDataTexture2DArray)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");X.setTexture2DArray(r,0),h=35866}ht.pixelStorei(37440,r.flipY),ht.pixelStorei(37441,r.premultiplyAlpha),ht.pixelStorei(3317,r.unpackAlignment);const u=ht.getParameter(3314),p=ht.getParameter(32878),d=ht.getParameter(3316),m=ht.getParameter(3315),g=ht.getParameter(32877);ht.pixelStorei(3314,s),ht.pixelStorei(32878,o),ht.pixelStorei(3316,t.min.x),ht.pixelStorei(3315,t.min.y),ht.pixelStorei(32877,t.min.z),ht.texSubImage3D(h,i,e.x,e.y,e.z,t.max.x-t.min.x+1,t.max.y-t.min.y+1,t.max.z-t.min.z+1,l,c,a),ht.pixelStorei(3314,u),ht.pixelStorei(32878,p),ht.pixelStorei(3316,d),ht.pixelStorei(3315,m),ht.pixelStorei(32877,g),0===i&&r.generateMipmaps&&ht.generateMipmap(h),W.unbindTexture()},this.initTexture=function(t){X.setTexture2D(t,0),W.unbindTexture()},this.resetState=function(){W.reset(),ct.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}exports.Group=hh,hh.prototype.isGroup=!0,Object.assign(uh.prototype,{constructor:uh,getHandSpace:function(){return null===this._hand&&(this._hand=new hh,this._hand.matrixAutoUpdate=!1,this._hand.visible=!1,this._hand.joints={},this._hand.inputState={pinching:!1}),this._hand},getTargetRaySpace:function(){return null===this._targetRay&&(this._targetRay=new hh,this._targetRay.matrixAutoUpdate=!1,this._targetRay.visible=!1),this._targetRay},getGripSpace:function(){return null===this._grip&&(this._grip=new hh,this._grip.matrixAutoUpdate=!1,this._grip.visible=!1),this._grip},dispatchEvent:function(t){return null!==this._targetRay&&this._targetRay.dispatchEvent(t),null!==this._grip&&this._grip.dispatchEvent(t),null!==this._hand&&this._hand.dispatchEvent(t),this},disconnect:function(t){return this.dispatchEvent({type:"disconnected",data:t}),null!==this._targetRay&&(this._targetRay.visible=!1),null!==this._grip&&(this._grip.visible=!1),null!==this._hand&&(this._hand.visible=!1),this},update:function(t,e,n){let r=null,i=null,s=null;const o=this._targetRay,a=this._grip,l=this._hand;if(t&&"visible-blurred"!==e.session.visibilityState)if(l&&t.hand){s=!0;for(const s of t.hand.values()){const t=e.getJointPose(s,n);if(void 0===l.joints[s.jointName]){const t=new hh;t.matrixAutoUpdate=!1,t.visible=!1,l.joints[s.jointName]=t,l.add(t)}const r=l.joints[s.jointName];null!==t&&(r.matrix.fromArray(t.transform.matrix),r.matrix.decompose(r.position,r.rotation,r.scale),r.jointRadius=t.radius),r.visible=null!==t}const r=l.joints["index-finger-tip"],i=l.joints["thumb-tip"],o=r.position.distanceTo(i.position),a=.02,c=.005;l.inputState.pinching&&o>a+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this})):!l.inputState.pinching&&o<=a-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this}))}else null!==o&&null!==(r=e.getPose(t.targetRaySpace,n))&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale)),null!==a&&t.gripSpace&&null!==(i=e.getPose(t.gripSpace,n))&&(a.matrix.fromArray(i.transform.matrix),a.matrix.decompose(a.position,a.rotation,a.scale));return null!==o&&(o.visible=null!==r),null!==a&&(a.visible=null!==i),null!==l&&(l.visible=null!==s),this}}),Object.assign(ph.prototype,In.prototype);class gh extends fh{}exports.WebGL1Renderer=gh,gh.prototype.isWebGL1Renderer=!0;class xh{constructor(t,e){this.name="",this.color=new xi(t),this.density=void 0!==e?e:25e-5}clone(){return new xh(this.color,this.density)}toJSON(){return{type:"FogExp2",color:this.color.getHex(),density:this.density}}}exports.FogExp2=xh,xh.prototype.isFogExp2=!0;class vh{constructor(t,e,n){this.name="",this.color=new xi(t),this.near=void 0!==e?e:1,this.far=void 0!==n?n:1e3}clone(){return new vh(this.color,this.near,this.far)}toJSON(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}}}exports.Fog=vh,vh.prototype.isFog=!0;class yh extends Xr{constructor(){super(),this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.overrideMaterial=null,this.autoUpdate=!0,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){return super.copy(t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.environment&&(this.environment=t.environment.clone()),null!==t.fog&&(this.fog=t.fog.clone()),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.autoUpdate=t.autoUpdate,this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){const e=super.toJSON(t);return null!==this.background&&(e.object.background=this.background.toJSON(t)),null!==this.environment&&(e.object.environment=this.environment.toJSON(t)),null!==this.fog&&(e.object.fog=this.fog.toJSON()),e}}function _h(t,e){this.array=t,this.stride=e,this.count=void 0!==t?t.length/e:0,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0,this.uuid=Fn.generateUUID()}exports.Scene=yh,yh.prototype.isScene=!0,Object.defineProperty(_h.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(_h.prototype,{isInterleavedBuffer:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.stride,n*=e.stride;for(let r=0,i=this.stride;r<i;r++)this.array[t+r]=e.array[n+r];return this},set:function(t,e=0){return this.array.set(t,e),this},clone:function(t){void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer);const e=new _h(new this.array.constructor(t.arrayBuffers[this.array.buffer._uuid]),this.stride);return e.setUsage(this.usage),e},onUpload:function(t){return this.onUploadCallback=t,this},toJSON:function(t){return void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=Array.prototype.slice.call(new Uint32Array(this.array.buffer))),{uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride}}});const bh=new Yn;function wh(t,e,n,r){this.name="",this.data=t,this.itemSize=e,this.offset=n,this.normalized=!0===r}Object.defineProperties(wh.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}},needsUpdate:{set:function(t){this.data.needsUpdate=t}}}),Object.assign(wh.prototype,{isInterleavedBufferAttribute:!0,applyMatrix4:function(t){for(let e=0,n=this.data.count;e<n;e++)bh.x=this.getX(e),bh.y=this.getY(e),bh.z=this.getZ(e),bh.applyMatrix4(t),this.setXYZ(e,bh.x,bh.y,bh.z);return this},setX:function(t,e){return this.data.array[t*this.data.stride+this.offset]=e,this},setY:function(t,e){return this.data.array[t*this.data.stride+this.offset+1]=e,this},setZ:function(t,e){return this.data.array[t*this.data.stride+this.offset+2]=e,this},setW:function(t,e){return this.data.array[t*this.data.stride+this.offset+3]=e,this},getX:function(t){return this.data.array[t*this.data.stride+this.offset]},getY:function(t){return this.data.array[t*this.data.stride+this.offset+1]},getZ:function(t){return this.data.array[t*this.data.stride+this.offset+2]},getW:function(t){return this.data.array[t*this.data.stride+this.offset+3]},setXY:function(t,e,n){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this.data.array[t+3]=i,this},clone:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return new bi(new this.array.constructor(t),this.itemSize,this.normalized)}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.clone(t)),new wh(t.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized)},toJSON:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return{itemSize:this.itemSize,type:this.array.constructor.name,array:t,normalized:this.normalized}}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}});class Mh extends hi{constructor(t){super(),this.type="SpriteMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.rotation=0,this.sizeAttenuation=!0,this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.rotation=t.rotation,this.sizeAttenuation=t.sizeAttenuation,this}}let Sh;exports.SpriteMaterial=Mh,Mh.prototype.isSpriteMaterial=!0;const Th=new Yn,Eh=new Yn,Ah=new Yn,Lh=new On,Rh=new On,Ch=new wr,Ph=new Yn,Dh=new Yn,Ih=new Yn,Bh=new On,Nh=new On,Fh=new On;class Oh extends Xr{constructor(t){if(super(),this.type="Sprite",void 0===Sh){Sh=new ki;const t=new _h(new Float32Array([-.5,-.5,0,0,0,.5,-.5,0,1,0,.5,.5,0,1,1,-.5,.5,0,0,1]),5);Sh.setIndex([0,1,2,0,2,3]),Sh.setAttribute("position",new wh(t,3,0,!1)),Sh.setAttribute("uv",new wh(t,2,3,!1))}this.geometry=Sh,this.material=void 0!==t?t:new Mh,this.center=new On(.5,.5)}raycast(t,e){null===t.camera&&console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.'),Eh.setFromMatrixScale(this.matrixWorld),Ch.copy(t.camera.matrixWorld),this.modelViewMatrix.multiplyMatrices(t.camera.matrixWorldInverse,this.matrixWorld),Ah.setFromMatrixPosition(this.modelViewMatrix),t.camera.isPerspectiveCamera&&!1===this.material.sizeAttenuation&&Eh.multiplyScalar(-Ah.z);const n=this.material.rotation;let r,i;0!==n&&(i=Math.cos(n),r=Math.sin(n));const s=this.center;zh(Ph.set(-.5,-.5,0),Ah,s,Eh,r,i),zh(Dh.set(.5,-.5,0),Ah,s,Eh,r,i),zh(Ih.set(.5,.5,0),Ah,s,Eh,r,i),Bh.set(0,0),Nh.set(1,0),Fh.set(1,1);let o=t.ray.intersectTriangle(Ph,Dh,Ih,!1,Th);if(null===o&&(zh(Dh.set(-.5,.5,0),Ah,s,Eh,r,i),Nh.set(0,1),null===(o=t.ray.intersectTriangle(Ph,Ih,Dh,!1,Th))))return;const a=t.ray.origin.distanceTo(Th);a<t.near||a>t.far||e.push({distance:a,point:Th.clone(),uv:li.getUV(Th,Ph,Dh,Ih,Bh,Nh,Fh,new On),face:null,object:this})}copy(t){return super.copy(t),void 0!==t.center&&this.center.copy(t.center),this.material=t.material,this}}function zh(t,e,n,r,i,s){Lh.subVectors(t,n).addScalar(.5).multiply(r),void 0!==i?(Rh.x=s*Lh.x-i*Lh.y,Rh.y=i*Lh.x+s*Lh.y):Rh.copy(Lh),t.copy(e),t.x+=Rh.x,t.y+=Rh.y,t.applyMatrix4(Ch)}exports.Sprite=Oh,Oh.prototype.isSprite=!0;const Gh=new Yn,Hh=new Yn;class Uh extends Xr{constructor(){super(),this._currentLevel=0,this.type="LOD",Object.defineProperties(this,{levels:{enumerable:!0,value:[]},isLOD:{value:!0}}),this.autoUpdate=!0}copy(t){super.copy(t,!1);const e=t.levels;for(let n=0,r=e.length;n<r;n++){const t=e[n];this.addLevel(t.object.clone(),t.distance)}return this.autoUpdate=t.autoUpdate,this}addLevel(t,e=0){e=Math.abs(e);const n=this.levels;let r;for(r=0;r<n.length&&!(e<n[r].distance);r++);return n.splice(r,0,{distance:e,object:t}),this.add(t),this}getCurrentLevel(){return this._currentLevel}getObjectForDistance(t){const e=this.levels;if(e.length>0){let n,r;for(n=1,r=e.length;n<r&&!(t<e[n].distance);n++);return e[n-1].object}return null}raycast(t,e){if(this.levels.length>0){Gh.setFromMatrixPosition(this.matrixWorld);const n=t.ray.origin.distanceTo(Gh);this.getObjectForDistance(n).raycast(t,e)}}update(t){const e=this.levels;if(e.length>1){Gh.setFromMatrixPosition(t.matrixWorld),Hh.setFromMatrixPosition(this.matrixWorld);const n=Gh.distanceTo(Hh)/t.zoom;let r,i;for(e[0].object.visible=!0,r=1,i=e.length;r<i&&n>=e[r].distance;r++)e[r-1].object.visible=!1,e[r].object.visible=!0;for(this._currentLevel=r-1;r<i;r++)e[r].object.visible=!1}}toJSON(t){const e=super.toJSON(t);!1===this.autoUpdate&&(e.object.autoUpdate=!1),e.object.levels=[];const n=this.levels;for(let r=0,i=n.length;r<i;r++){const t=n[r];e.object.levels.push({object:t.object.uuid,distance:t.distance})}return e}}exports.LOD=Uh;const kh=new Yn,Vh=new Wn,Wh=new Wn,jh=new Yn,qh=new wr;function Xh(t,e){os.call(this,t,e),this.type="SkinnedMesh",this.bindMode="attached",this.bindMatrix=new wr,this.bindMatrixInverse=new wr}function Yh(){Xr.call(this),this.type="Bone"}Xh.prototype=Object.assign(Object.create(os.prototype),{constructor:Xh,isSkinnedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.bindMode=t.bindMode,this.bindMatrix.copy(t.bindMatrix),this.bindMatrixInverse.copy(t.bindMatrixInverse),this.skeleton=t.skeleton,this},bind:function(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.copy(e).invert()},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){const t=new Wn,e=this.geometry.attributes.skinWeight;for(let n=0,r=e.count;n<r;n++){t.x=e.getX(n),t.y=e.getY(n),t.z=e.getZ(n),t.w=e.getW(n);const r=1/t.manhattanLength();r!==1/0?t.multiplyScalar(r):t.set(1,0,0,0),e.setXYZW(n,t.x,t.y,t.z,t.w)}},updateMatrixWorld:function(t){os.prototype.updateMatrixWorld.call(this,t),"attached"===this.bindMode?this.bindMatrixInverse.copy(this.matrixWorld).invert():"detached"===this.bindMode?this.bindMatrixInverse.copy(this.bindMatrix).invert():console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)},boneTransform:function(t,e){const n=this.skeleton,r=this.geometry;Vh.fromBufferAttribute(r.attributes.skinIndex,t),Wh.fromBufferAttribute(r.attributes.skinWeight,t),kh.fromBufferAttribute(r.attributes.position,t).applyMatrix4(this.bindMatrix),e.set(0,0,0);for(let i=0;i<4;i++){const t=Wh.getComponent(i);if(0!==t){const r=Vh.getComponent(i);qh.multiplyMatrices(n.bones[r].matrixWorld,n.boneInverses[r]),e.addScaledVector(jh.copy(kh).applyMatrix4(qh),t)}}return e.applyMatrix4(this.bindMatrixInverse)}}),Yh.prototype=Object.assign(Object.create(Xr.prototype),{constructor:Yh,isBone:!0});const Zh=new wr,Jh=new wr;class Qh{constructor(t=[],e=[]){this.uuid=Fn.generateUUID(),this.bones=t.slice(0),this.boneInverses=e,this.boneMatrices=null,this.boneTexture=null,this.boneTextureSize=0,this.frame=-1,this.init()}init(){const t=this.bones,e=this.boneInverses;if(this.boneMatrices=new Float32Array(16*t.length),0===e.length)this.calculateInverses();else if(t.length!==e.length){console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones."),this.boneInverses=[];for(let t=0,e=this.bones.length;t<e;t++)this.boneInverses.push(new wr)}}calculateInverses(){this.boneInverses.length=0;for(let t=0,e=this.bones.length;t<e;t++){const e=new wr;this.bones[t]&&e.copy(this.bones[t].matrixWorld).invert(),this.boneInverses.push(e)}}pose(){for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&e.matrixWorld.copy(this.boneInverses[t]).invert()}for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&(e.parent&&e.parent.isBone?(e.matrix.copy(e.parent.matrixWorld).invert(),e.matrix.multiply(e.matrixWorld)):e.matrix.copy(e.matrixWorld),e.matrix.decompose(e.position,e.quaternion,e.scale))}}update(){const t=this.bones,e=this.boneInverses,n=this.boneMatrices,r=this.boneTexture;for(let i=0,s=t.length;i<s;i++){const r=t[i]?t[i].matrixWorld:Jh;Zh.multiplyMatrices(r,e[i]),Zh.toArray(n,16*i)}null!==r&&(r.needsUpdate=!0)}clone(){return new Qh(this.bones,this.boneInverses)}getBoneByName(t){for(let e=0,n=this.bones.length;e<n;e++){const n=this.bones[e];if(n.name===t)return n}}dispose(){null!==this.boneTexture&&(this.boneTexture.dispose(),this.boneTexture=null)}fromJSON(t,e){this.uuid=t.uuid;for(let n=0,r=t.bones.length;n<r;n++){const r=t.bones[n];let i=e[r];void 0===i&&(console.warn("THREE.Skeleton: No bone found with UUID:",r),i=new Yh),this.bones.push(i),this.boneInverses.push((new wr).fromArray(t.boneInverses[n]))}return this.init(),this}toJSON(){const t={metadata:{version:4.5,type:"Skeleton",generator:"Skeleton.toJSON"},bones:[],boneInverses:[]};t.uuid=this.uuid;const e=this.bones,n=this.boneInverses;for(let r=0,i=e.length;r<i;r++){const i=e[r];t.bones.push(i.uuid);const s=n[r];t.boneInverses.push(s.toArray())}return t}}exports.Skeleton=Qh;const Kh=new wr,$h=new wr,tu=[],eu=new os;function nu(t,e,n){os.call(this,t,e),this.instanceMatrix=new bi(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.frustumCulled=!1}nu.prototype=Object.assign(Object.create(os.prototype),{constructor:nu,isInstancedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.instanceMatrix.copy(t.instanceMatrix),null!==t.instanceColor&&(this.instanceColor=t.instanceColor.clone()),this.count=t.count,this},getColorAt:function(t,e){e.fromArray(this.instanceColor.array,3*t)},getMatrixAt:function(t,e){e.fromArray(this.instanceMatrix.array,16*t)},raycast:function(t,e){const n=this.matrixWorld,r=this.count;if(eu.geometry=this.geometry,eu.material=this.material,void 0!==eu.material)for(let i=0;i<r;i++){this.getMatrixAt(i,Kh),$h.multiplyMatrices(n,Kh),eu.matrixWorld=$h,eu.raycast(t,tu);for(let t=0,n=tu.length;t<n;t++){const n=tu[t];n.instanceId=i,n.object=this,e.push(n)}tu.length=0}},setColorAt:function(t,e){null===this.instanceColor&&(this.instanceColor=new bi(new Float32Array(3*this.count),3)),e.toArray(this.instanceColor.array,3*t)},setMatrixAt:function(t,e){e.toArray(this.instanceMatrix.array,16*t)},updateMorphTargets:function(){},dispose:function(){this.dispatchEvent({type:"dispose"})}});class ru extends hi{constructor(t){super(),this.type="LineBasicMaterial",this.color=new xi(16777215),this.linewidth=1,this.linecap="round",this.linejoin="round",this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this.morphTargets=t.morphTargets,this}}exports.LineBasicMaterial=ru,ru.prototype.isLineBasicMaterial=!0;const iu=new Yn,su=new Yn,ou=new wr,au=new br,lu=new dr;function cu(t=new ki,e=new ru){Xr.call(this),this.type="Line",this.geometry=t,this.material=e,this.updateMorphTargets()}cu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:cu,isLine:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[0];for(let t=1,r=e.count;t<r;t++)iu.fromBufferAttribute(e,t-1),su.fromBufferAttribute(e,t),n[t]=n[t-1],n[t]+=iu.distanceTo(su);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Line.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),lu.copy(n.boundingSphere),lu.applyMatrix4(r),lu.radius+=i,!1===t.ray.intersectsSphere(lu))return;ou.copy(r).invert(),au.copy(t.ray).applyMatrix4(ou);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s,a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=this.isLineSegments?2:1;if(n.isBufferGeometry){const r=n.index,i=n.attributes.position;if(null!==r){const n=r.array;for(let r=0,s=n.length-1;r<s;r+=u){const s=n[r],u=n[r+1];if(a.fromBufferAttribute(i,s),l.fromBufferAttribute(i,u),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const p=t.ray.origin.distanceTo(h);p<t.near||p>t.far||e.push({distance:p,point:c.clone().applyMatrix4(this.matrixWorld),index:r,face:null,faceIndex:null,object:this})}}else for(let n=0,s=i.count-1;n<s;n+=u){if(a.fromBufferAttribute(i,n),l.fromBufferAttribute(i,n+1),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const r=t.ray.origin.distanceTo(h);r<t.near||r>t.far||e.push({distance:r,point:c.clone().applyMatrix4(this.matrixWorld),index:n,face:null,faceIndex:null,object:this})}}else n.isGeometry&&console.error("THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});const hu=new Yn,uu=new Yn;function pu(t,e){cu.call(this,t,e),this.type="LineSegments"}pu.prototype=Object.assign(Object.create(cu.prototype),{constructor:pu,isLineSegments:!0,computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[];for(let t=0,r=e.count;t<r;t+=2)hu.fromBufferAttribute(e,t),uu.fromBufferAttribute(e,t+1),n[t]=0===t?0:n[t-1],n[t+1]=n[t]+hu.distanceTo(uu);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this}});class du extends cu{constructor(t,e){super(t,e),this.type="LineLoop"}}exports.LineLoop=du,du.prototype.isLineLoop=!0;class mu extends hi{constructor(t){super(),this.type="PointsMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.size=1,this.sizeAttenuation=!0,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this.morphTargets=t.morphTargets,this}}exports.PointsMaterial=mu,mu.prototype.isPointsMaterial=!0;const fu=new wr,gu=new br,xu=new dr,vu=new Yn;function yu(t=new ki,e=new mu){Xr.call(this),this.type="Points",this.geometry=t,this.material=e,this.updateMorphTargets()}function _u(t,e,n,r,i,s,o){const a=gu.distanceSqToPoint(t);if(a<n){const n=new Yn;gu.closestPointToPoint(t,n),n.applyMatrix4(r);const l=i.ray.origin.distanceTo(n);if(l<i.near||l>i.far)return;s.push({distance:l,distanceToRay:Math.sqrt(a),point:n,index:e,face:null,object:o})}}yu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:yu,isPoints:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Points.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),xu.copy(n.boundingSphere),xu.applyMatrix4(r),xu.radius+=i,!1===t.ray.intersectsSphere(xu))return;fu.copy(r).invert(),gu.copy(t.ray).applyMatrix4(fu);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s;if(n.isBufferGeometry){const i=n.index,s=n.attributes.position;if(null!==i){const n=i.array;for(let i=0,a=n.length;i<a;i++){const a=n[i];vu.fromBufferAttribute(s,a),_u(vu,a,o,r,t,e,this)}}else for(let n=0,a=s.count;n<a;n++)vu.fromBufferAttribute(s,n),_u(vu,n,o,r,t,e,this)}else console.error("THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});class bu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.format=void 0!==o?o:Bt,this.minFilter=void 0!==s?s:gt,this.magFilter=void 0!==i?i:gt,this.generateMipmaps=!1;const c=this;"requestVideoFrameCallback"in t&&t.requestVideoFrameCallback(function e(){c.needsUpdate=!0,t.requestVideoFrameCallback(e)})}clone(){return new this.constructor(this.image).copy(this)}update(){const t=this.image;!1==="requestVideoFrameCallback"in t&&t.readyState>=t.HAVE_CURRENT_DATA&&(this.needsUpdate=!0)}}exports.VideoTexture=bu,bu.prototype.isVideoTexture=!0;class wu extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={width:e,height:n},this.mipmaps=t,this.flipY=!1,this.generateMipmaps=!1}}exports.CompressedTexture=wu,wu.prototype.isCompressedTexture=!0;class Mu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.needsUpdate=!0}}exports.CanvasTexture=Mu,Mu.prototype.isCanvasTexture=!0;class Su extends kn{constructor(t,e,n,r,i,s,o,a,l,c){if((c=void 0!==c?c:Gt)!==Gt&&c!==Ht)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===Gt&&(n=St),void 0===n&&c===Ht&&(n=Dt),super(null,r,i,s,o,a,c,n,l),this.image={width:t,height:e},this.magFilter=void 0!==o?o:ut,this.minFilter=void 0!==a?a:ut,this.flipY=!1,this.generateMipmaps=!1}}exports.DepthTexture=Su,Su.prototype.isDepthTexture=!0;class Tu extends ki{constructor(t=1,e=8,n=0,r=2*Math.PI){super(),this.type="CircleGeometry",this.parameters={radius:t,segments:e,thetaStart:n,thetaLength:r},e=Math.max(3,e);const i=[],s=[],o=[],a=[],l=new Yn,c=new On;s.push(0,0,0),o.push(0,0,1),a.push(.5,.5);for(let h=0,u=3;h<=e;h++,u+=3){const i=n+h/e*r;l.x=t*Math.cos(i),l.y=t*Math.sin(i),s.push(l.x,l.y,l.z),o.push(0,0,1),c.x=(s[u]/t+1)/2,c.y=(s[u+1]/t+1)/2,a.push(c.x,c.y)}for(let h=1;h<=e;h++)i.push(h,h+1,0);this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("normal",new Ci(o,3)),this.setAttribute("uv",new Ci(a,2))}}exports.CircleGeometry=exports.CircleBufferGeometry=Tu;class Eu extends ki{constructor(t=1,e=1,n=1,r=8,i=1,s=!1,o=0,a=2*Math.PI){super(),this.type="CylinderGeometry",this.parameters={radiusTop:t,radiusBottom:e,height:n,radialSegments:r,heightSegments:i,openEnded:s,thetaStart:o,thetaLength:a};const l=this;r=Math.floor(r),i=Math.floor(i);const c=[],h=[],u=[],p=[];let d=0;const m=[],f=n/2;let g=0;function x(n){const i=d,s=new On,m=new Yn;let x=0;const v=!0===n?t:e,y=!0===n?1:-1;for(let t=1;t<=r;t++)h.push(0,f*y,0),u.push(0,y,0),p.push(.5,.5),d++;const _=d;for(let t=0;t<=r;t++){const e=t/r*a+o,n=Math.cos(e),i=Math.sin(e);m.x=v*i,m.y=f*y,m.z=v*n,h.push(m.x,m.y,m.z),u.push(0,y,0),s.x=.5*n+.5,s.y=.5*i*y+.5,p.push(s.x,s.y),d++}for(let t=0;t<r;t++){const e=i+t,r=_+t;!0===n?c.push(r,r+1,e):c.push(r+1,r,e),x+=3}l.addGroup(g,x,!0===n?1:2),g+=x}!function(){const s=new Yn,x=new Yn;let v=0;const y=(e-t)/n;for(let l=0;l<=i;l++){const c=[],g=l/i,v=g*(e-t)+t;for(let t=0;t<=r;t++){const e=t/r,i=e*a+o,l=Math.sin(i),m=Math.cos(i);x.x=v*l,x.y=-g*n+f,x.z=v*m,h.push(x.x,x.y,x.z),s.set(l,y,m).normalize(),u.push(s.x,s.y,s.z),p.push(e,1-g),c.push(d++)}m.push(c)}for(let t=0;t<r;t++)for(let e=0;e<i;e++){const n=m[e][t],r=m[e+1][t],i=m[e+1][t+1],s=m[e][t+1];c.push(n,r,s),c.push(r,i,s),v+=6}l.addGroup(g,v,0),g+=v}(),!1===s&&(t>0&&x(!0),e>0&&x(!1)),this.setIndex(c),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}}exports.CylinderGeometry=exports.CylinderBufferGeometry=Eu;class Au extends Eu{constructor(t=1,e=1,n=8,r=1,i=!1,s=0,o=2*Math.PI){super(0,t,e,n,r,i,s,o),this.type="ConeGeometry",this.parameters={radius:t,height:e,radialSegments:n,heightSegments:r,openEnded:i,thetaStart:s,thetaLength:o}}}exports.ConeGeometry=exports.ConeBufferGeometry=Au;class Lu extends ki{constructor(t,e,n=1,r=0){super(),this.type="PolyhedronGeometry",this.parameters={vertices:t,indices:e,radius:n,detail:r};const i=[],s=[];function o(t,e,n,r){const i=r+1,s=[];for(let o=0;o<=i;o++){s[o]=[];const r=t.clone().lerp(n,o/i),a=e.clone().lerp(n,o/i),l=i-o;for(let t=0;t<=l;t++)s[o][t]=0===t&&o===i?r:r.clone().lerp(a,t/l)}for(let o=0;o<i;o++)for(let t=0;t<2*(i-o)-1;t++){const e=Math.floor(t/2);t%2==0?(a(s[o][e+1]),a(s[o+1][e]),a(s[o][e])):(a(s[o][e+1]),a(s[o+1][e+1]),a(s[o+1][e]))}}function a(t){i.push(t.x,t.y,t.z)}function l(e,n){const r=3*e;n.x=t[r+0],n.y=t[r+1],n.z=t[r+2]}function c(t,e,n,r){r<0&&1===t.x&&(s[e]=t.x-1),0===n.x&&0===n.z&&(s[e]=r/2/Math.PI+.5)}function h(t){return Math.atan2(t.z,-t.x)}!function(t){const n=new Yn,r=new Yn,i=new Yn;for(let s=0;s<e.length;s+=3)l(e[s+0],n),l(e[s+1],r),l(e[s+2],i),o(n,r,i,t)}(r),function(t){const e=new Yn;for(let n=0;n<i.length;n+=3)e.x=i[n+0],e.y=i[n+1],e.z=i[n+2],e.normalize().multiplyScalar(t),i[n+0]=e.x,i[n+1]=e.y,i[n+2]=e.z}(n),function(){const t=new Yn;for(let n=0;n<i.length;n+=3){t.x=i[n+0],t.y=i[n+1],t.z=i[n+2];const r=h(t)/2/Math.PI+.5,o=(e=t,Math.atan2(-e.y,Math.sqrt(e.x*e.x+e.z*e.z))/Math.PI+.5);s.push(r,1-o)}var e;(function(){const t=new Yn,e=new Yn,n=new Yn,r=new Yn,o=new On,a=new On,l=new On;for(let u=0,p=0;u<i.length;u+=9,p+=6){t.set(i[u+0],i[u+1],i[u+2]),e.set(i[u+3],i[u+4],i[u+5]),n.set(i[u+6],i[u+7],i[u+8]),o.set(s[p+0],s[p+1]),a.set(s[p+2],s[p+3]),l.set(s[p+4],s[p+5]),r.copy(t).add(e).add(n).divideScalar(3);const d=h(r);c(o,p+0,t,d),c(a,p+2,e,d),c(l,p+4,n,d)}})(),function(){for(let t=0;t<s.length;t+=6){const e=s[t+0],n=s[t+2],r=s[t+4],i=Math.max(e,n,r),o=Math.min(e,n,r);i>.9&&o<.1&&(e<.2&&(s[t+0]+=1),n<.2&&(s[t+2]+=1),r<.2&&(s[t+4]+=1))}}()}(),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(i.slice(),3)),this.setAttribute("uv",new Ci(s,2)),0===r?this.computeVertexNormals():this.normalizeNormals()}}exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=Lu;class Ru extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2,r=1/n;super([-1,-1,-1,-1,-1,1,-1,1,-1,-1,1,1,1,-1,-1,1,-1,1,1,1,-1,1,1,1,0,-r,-n,0,-r,n,0,r,-n,0,r,n,-r,-n,0,-r,n,0,r,-n,0,r,n,0,-n,0,-r,n,0,-r,-n,0,r,n,0,r],[3,11,7,3,7,15,3,15,13,7,19,17,7,17,6,7,6,15,17,4,8,17,8,10,17,10,6,8,0,16,8,16,2,8,2,10,0,12,1,0,1,18,0,18,16,6,10,2,6,2,13,6,13,15,2,16,18,2,18,3,2,3,13,18,1,9,18,9,11,18,11,3,4,14,12,4,12,0,4,0,8,11,9,5,11,5,19,11,19,7,19,5,14,19,14,4,19,4,17,1,12,14,1,14,5,1,5,9],t,e),this.type="DodecahedronGeometry",this.parameters={radius:t,detail:e}}}exports.DodecahedronGeometry=exports.DodecahedronBufferGeometry=Ru;const Cu=new Yn,Pu=new Yn,Du=new Yn,Iu=new li;class Bu extends ki{constructor(t,e){if(super(),this.type="EdgesGeometry",this.parameters={thresholdAngle:e},e=void 0!==e?e:1,!0===t.isGeometry)return void console.error("THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const n=Math.pow(10,4),r=Math.cos(Fn.DEG2RAD*e),i=t.getIndex(),s=t.getAttribute("position"),o=i?i.count:s.count,a=[0,0,0],l=["a","b","c"],c=new Array(3),h={},u=[];for(let p=0;p<o;p+=3){i?(a[0]=i.getX(p),a[1]=i.getX(p+1),a[2]=i.getX(p+2)):(a[0]=p,a[1]=p+1,a[2]=p+2);const{a:t,b:e,c:o}=Iu;if(t.fromBufferAttribute(s,a[0]),e.fromBufferAttribute(s,a[1]),o.fromBufferAttribute(s,a[2]),Iu.getNormal(Du),c[0]=`${Math.round(t.x*n)},${Math.round(t.y*n)},${Math.round(t.z*n)}`,c[1]=`${Math.round(e.x*n)},${Math.round(e.y*n)},${Math.round(e.z*n)}`,c[2]=`${Math.round(o.x*n)},${Math.round(o.y*n)},${Math.round(o.z*n)}`,c[0]!==c[1]&&c[1]!==c[2]&&c[2]!==c[0])for(let n=0;n<3;n++){const t=(n+1)%3,e=c[n],i=c[t],s=Iu[l[n]],o=Iu[l[t]],p=`${e}_${i}`,d=`${i}_${e}`;d in h&&h[d]?(Du.dot(h[d].normal)<=r&&(u.push(s.x,s.y,s.z),u.push(o.x,o.y,o.z)),h[d]=null):p in h||(h[p]={index0:a[n],index1:a[t],normal:Du.clone()})}}for(const p in h)if(h[p]){const{index0:t,index1:e}=h[p];Cu.fromBufferAttribute(s,t),Pu.fromBufferAttribute(s,e),u.push(Cu.x,Cu.y,Cu.z),u.push(Pu.x,Pu.y,Pu.z)}this.setAttribute("position",new Ci(u,3))}}exports.EdgesGeometry=Bu;const Nu={triangulate:function(t,e,n){n=n||2;const r=e&&e.length,i=r?e[0]*n:t.length;let s=Fu(t,0,i,n,!0);const o=[];if(!s||s.next===s.prev)return o;let a,l,c,h,u,p,d;if(r&&(s=Vu(t,e,s,n)),t.length>80*n){a=c=t[0],l=h=t[1];for(let e=n;e<i;e+=n)(u=t[e])<a&&(a=u),(p=t[e+1])<l&&(l=p),u>c&&(c=u),p>h&&(h=p);d=0!==(d=Math.max(c-a,h-l))?1/d:0}return zu(s,o,n,a,l,d),o}};function Fu(t,e,n,r,i){let s,o;if(i===pp(t,e,n,r)>0)for(s=e;s<n;s+=r)o=cp(s,t[s],t[s+1],o);else for(s=n-r;s>=e;s-=r)o=cp(s,t[s],t[s+1],o);return o&&ep(o,o.next)&&(hp(o),o=o.next),o}function Ou(t,e){if(!t)return t;e||(e=t);let n,r=t;do{if(n=!1,r.steiner||!ep(r,r.next)&&0!==tp(r.prev,r,r.next))r=r.next;else{if(hp(r),(r=e=r.prev)===r.next)break;n=!0}}while(n||r!==e);return e}function 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i=t;do{null===i.z&&(i.z=Ju(i.x,i.y,e,n,r)),i.prevZ=i.prev,i.nextZ=i.next,i=i.next}while(i!==t);i.prevZ.nextZ=null,i.prevZ=null,Zu(i)}function Zu(t){let e,n,r,i,s,o,a,l,c=1;do{for(n=t,t=null,s=null,o=0;n;){for(o++,r=n,a=0,e=0;e<c&&(a++,r=r.nextZ);e++);for(l=c;a>0||l>0&&r;)0!==a&&(0===l||!r||n.z<=r.z)?(i=n,n=n.nextZ,a--):(i=r,r=r.nextZ,l--),s?s.nextZ=i:t=i,i.prevZ=s,s=i;n=r}s.nextZ=null,c*=2}while(o>1);return t}function Ju(t,e,n,r,i){return(t=1431655765&((t=858993459&((t=252645135&((t=16711935&((t=32767*(t-n)*i)|t<<8))|t<<4))|t<<2))|t<<1))|(e=1431655765&((e=858993459&((e=252645135&((e=16711935&((e=32767*(e-r)*i)|e<<8))|e<<4))|e<<2))|e<<1))<<1}function Qu(t){let e=t,n=t;do{(e.x<n.x||e.x===n.x&&e.y<n.y)&&(n=e),e=e.next}while(e!==t);return n}function Ku(t,e,n,r,i,s,o,a){return(i-o)*(e-a)-(t-o)*(s-a)>=0&&(t-o)*(r-a)-(n-o)*(e-a)>=0&&(n-o)*(s-a)-(i-o)*(r-a)>=0}function $u(t,e){return t.next.i!==e.i&&t.prev.i!==e.i&&!sp(t,e)&&(op(t,e)&&op(e,t)&&ap(t,e)&&(tp(t.prev,t,e.prev)||tp(t,e.prev,e))||ep(t,e)&&tp(t.prev,t,t.next)>0&&tp(e.prev,e,e.next)>0)}function tp(t,e,n){return(e.y-t.y)*(n.x-e.x)-(e.x-t.x)*(n.y-e.y)}function ep(t,e){return t.x===e.x&&t.y===e.y}function np(t,e,n,r){const i=ip(tp(t,e,n)),s=ip(tp(t,e,r)),o=ip(tp(n,r,t)),a=ip(tp(n,r,e));return i!==s&&o!==a||(!(0!==i||!rp(t,n,e))||(!(0!==s||!rp(t,r,e))||(!(0!==o||!rp(n,t,r))||!(0!==a||!rp(n,e,r)))))}function rp(t,e,n){return e.x<=Math.max(t.x,n.x)&&e.x>=Math.min(t.x,n.x)&&e.y<=Math.max(t.y,n.y)&&e.y>=Math.min(t.y,n.y)}function ip(t){return t>0?1:t<0?-1:0}function sp(t,e){let n=t;do{if(n.i!==t.i&&n.next.i!==t.i&&n.i!==e.i&&n.next.i!==e.i&&np(n,n.next,t,e))return!0;n=n.next}while(n!==t);return!1}function op(t,e){return tp(t.prev,t,t.next)<0?tp(t,e,t.next)>=0&&tp(t,t.prev,e)>=0:tp(t,e,t.prev)<0||tp(t,t.next,e)<0}function ap(t,e){let n=t,r=!1;const i=(t.x+e.x)/2,s=(t.y+e.y)/2;do{n.y>s!=n.next.y>s&&n.next.y!==n.y&&i<(n.next.x-n.x)*(s-n.y)/(n.next.y-n.y)+n.x&&(r=!r),n=n.next}while(n!==t);return r}function lp(t,e){const n=new up(t.i,t.x,t.y),r=new up(e.i,e.x,e.y),i=t.next,s=e.prev;return t.next=e,e.prev=t,n.next=i,i.prev=n,r.next=n,n.prev=r,s.next=r,r.prev=s,r}function cp(t,e,n,r){const i=new up(t,e,n);return r?(i.next=r.next,i.prev=r,r.next.prev=i,r.next=i):(i.prev=i,i.next=i),i}function hp(t){t.next.prev=t.prev,t.prev.next=t.next,t.prevZ&&(t.prevZ.nextZ=t.nextZ),t.nextZ&&(t.nextZ.prevZ=t.prevZ)}function up(t,e,n){this.i=t,this.x=e,this.y=n,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1}function pp(t,e,n,r){let i=0;for(let s=e,o=n-r;s<n;s+=r)i+=(t[o]-t[s])*(t[s+1]+t[o+1]),o=s;return i}const dp={area:function(t){const e=t.length;let n=0;for(let r=e-1,i=0;i<e;r=i++)n+=t[r].x*t[i].y-t[i].x*t[r].y;return.5*n},isClockWise:function(t){return dp.area(t)<0},triangulateShape:function(t,e){const n=[],r=[],i=[];mp(t),fp(n,t);let s=t.length;e.forEach(mp);for(let a=0;a<e.length;a++)r.push(s),s+=e[a].length,fp(n,e[a]);const o=Nu.triangulate(n,r);for(let a=0;a<o.length;a+=3)i.push(o.slice(a,a+3));return i}};function mp(t){const e=t.length;e>2&&t[e-1].equals(t[0])&&t.pop()}function fp(t,e){for(let n=0;n<e.length;n++)t.push(e[n].x),t.push(e[n].y)}exports.ShapeUtils=dp;class gp extends ki{constructor(t,e){super(),this.type="ExtrudeGeometry",this.parameters={shapes:t,options:e},t=Array.isArray(t)?t:[t];const n=this,r=[],i=[];for(let o=0,a=t.length;o<a;o++){s(t[o])}function s(t){const s=[],o=void 0!==e.curveSegments?e.curveSegments:12,a=void 0!==e.steps?e.steps:1;let l=void 0!==e.depth?e.depth:100,c=void 0===e.bevelEnabled||e.bevelEnabled,h=void 0!==e.bevelThickness?e.bevelThickness:6,u=void 0!==e.bevelSize?e.bevelSize:h-2,p=void 0!==e.bevelOffset?e.bevelOffset:0,d=void 0!==e.bevelSegments?e.bevelSegments:3;const m=e.extrudePath,f=void 0!==e.UVGenerator?e.UVGenerator:xp;void 0!==e.amount&&(console.warn("THREE.ExtrudeBufferGeometry: amount has been renamed to depth."),l=e.amount);let g,x,v,y,_,b=!1;m&&(g=m.getSpacedPoints(a),b=!0,c=!1,x=m.computeFrenetFrames(a,!1),v=new Yn,y=new Yn,_=new Yn),c||(d=0,h=0,u=0,p=0);const w=t.extractPoints(o);let M=w.shape;const S=w.holes;if(!dp.isClockWise(M)){M=M.reverse();for(let t=0,e=S.length;t<e;t++){const e=S[t];dp.isClockWise(e)&&(S[t]=e.reverse())}}const T=dp.triangulateShape(M,S),E=M;for(let e=0,n=S.length;e<n;e++){const t=S[e];M=M.concat(t)}function A(t,e,n){return e||console.error("THREE.ExtrudeGeometry: vec does not exist"),e.clone().multiplyScalar(n).add(t)}const L=M.length,R=T.length;function C(t,e,n){let r,i,s;const o=t.x-e.x,a=t.y-e.y,l=n.x-t.x,c=n.y-t.y,h=o*o+a*a,u=o*c-a*l;if(Math.abs(u)>Number.EPSILON){const u=Math.sqrt(h),p=Math.sqrt(l*l+c*c),d=e.x-a/u,m=e.y+o/u,f=((n.x-c/p-d)*c-(n.y+l/p-m)*l)/(o*c-a*l),g=(r=d+o*f-t.x)*r+(i=m+a*f-t.y)*i;if(g<=2)return new On(r,i);s=Math.sqrt(g/2)}else{let t=!1;o>Number.EPSILON?l>Number.EPSILON&&(t=!0):o<-Number.EPSILON?l<-Number.EPSILON&&(t=!0):Math.sign(a)===Math.sign(c)&&(t=!0),t?(r=-a,i=o,s=Math.sqrt(h)):(r=o,i=a,s=Math.sqrt(h/2))}return new On(r/s,i/s)}const P=[];for(let e=0,n=E.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),P[e]=C(E[e],E[r],E[i]);const D=[];let I,B=P.concat();for(let e=0,n=S.length;e<n;e++){const t=S[e];I=[];for(let e=0,n=t.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),I[e]=C(t[e],t[r],t[i]);D.push(I),B=B.concat(I)}for(let e=0;e<d;e++){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,-n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);O(i.x,i.y,-n)}}}const N=u+p;for(let e=0;e<L;e++){const t=c?A(M[e],B[e],N):M[e];b?(y.copy(x.normals[0]).multiplyScalar(t.x),v.copy(x.binormals[0]).multiplyScalar(t.y),_.copy(g[0]).add(y).add(v),O(_.x,_.y,_.z)):O(t.x,t.y,0)}for(let e=1;e<=a;e++)for(let t=0;t<L;t++){const n=c?A(M[t],B[t],N):M[t];b?(y.copy(x.normals[e]).multiplyScalar(n.x),v.copy(x.binormals[e]).multiplyScalar(n.y),_.copy(g[e]).add(y).add(v),O(_.x,_.y,_.z)):O(n.x,n.y,l/a*e)}for(let e=d-1;e>=0;e--){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,l+n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);b?O(i.x,i.y+g[a-1].y,g[a-1].x+n):O(i.x,i.y,l+n)}}}function F(t,e){let n=t.length;for(;--n>=0;){const r=n;let i=n-1;i<0&&(i=t.length-1);for(let t=0,n=a+2*d;t<n;t++){const n=L*t,s=L*(t+1);G(e+r+n,e+i+n,e+i+s,e+r+s)}}}function O(t,e,n){s.push(t),s.push(e),s.push(n)}function z(t,e,i){H(t),H(e),H(i);const s=r.length/3,o=f.generateTopUV(n,r,s-3,s-2,s-1);U(o[0]),U(o[1]),U(o[2])}function G(t,e,i,s){H(t),H(e),H(s),H(e),H(i),H(s);const o=r.length/3,a=f.generateSideWallUV(n,r,o-6,o-3,o-2,o-1);U(a[0]),U(a[1]),U(a[3]),U(a[1]),U(a[2]),U(a[3])}function H(t){r.push(s[3*t+0]),r.push(s[3*t+1]),r.push(s[3*t+2])}function U(t){i.push(t.x),i.push(t.y)}!function(){const t=r.length/3;if(c){let t=0,e=L*t;for(let n=0;n<R;n++){const t=T[n];z(t[2]+e,t[1]+e,t[0]+e)}e=L*(t=a+2*d);for(let n=0;n<R;n++){const t=T[n];z(t[0]+e,t[1]+e,t[2]+e)}}else{for(let t=0;t<R;t++){const e=T[t];z(e[2],e[1],e[0])}for(let t=0;t<R;t++){const e=T[t];z(e[0]+L*a,e[1]+L*a,e[2]+L*a)}}n.addGroup(t,r.length/3-t,0)}(),function(){const t=r.length/3;let e=0;F(E,e),e+=E.length;for(let n=0,r=S.length;n<r;n++){const t=S[n];F(t,e),e+=t.length}n.addGroup(t,r.length/3-t,1)}()}this.setAttribute("position",new Ci(r,3)),this.setAttribute("uv",new Ci(i,2)),this.computeVertexNormals()}toJSON(){const t=ki.prototype.toJSON.call(this);return vp(this.parameters.shapes,this.parameters.options,t)}}exports.ExtrudeGeometry=exports.ExtrudeBufferGeometry=gp;const xp={generateTopUV:function(t,e,n,r,i){const s=e[3*n],o=e[3*n+1],a=e[3*r],l=e[3*r+1],c=e[3*i],h=e[3*i+1];return[new On(s,o),new On(a,l),new On(c,h)]},generateSideWallUV:function(t,e,n,r,i,s){const o=e[3*n],a=e[3*n+1],l=e[3*n+2],c=e[3*r],h=e[3*r+1],u=e[3*r+2],p=e[3*i],d=e[3*i+1],m=e[3*i+2],f=e[3*s],g=e[3*s+1],x=e[3*s+2];return Math.abs(a-h)<.01?[new On(o,1-l),new On(c,1-u),new On(p,1-m),new On(f,1-x)]:[new On(a,1-l),new On(h,1-u),new On(d,1-m),new On(g,1-x)]}};function vp(t,e,n){if(n.shapes=[],Array.isArray(t))for(let r=0,i=t.length;r<i;r++){const e=t[r];n.shapes.push(e.uuid)}else n.shapes.push(t.uuid);return void 0!==e.extrudePath&&(n.options.extrudePath=e.extrudePath.toJSON()),n}class yp extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2;super([-1,n,0,1,n,0,-1,-n,0,1,-n,0,0,-1,n,0,1,n,0,-1,-n,0,1,-n,n,0,-1,n,0,1,-n,0,-1,-n,0,1],[0,11,5,0,5,1,0,1,7,0,7,10,0,10,11,1,5,9,5,11,4,11,10,2,10,7,6,7,1,8,3,9,4,3,4,2,3,2,6,3,6,8,3,8,9,4,9,5,2,4,11,6,2,10,8,6,7,9,8,1],t,e),this.type="IcosahedronGeometry",this.parameters={radius:t,detail:e}}}exports.IcosahedronGeometry=exports.IcosahedronBufferGeometry=yp;class _p extends ki{constructor(t,e=12,n=0,r=2*Math.PI){super(),this.type="LatheGeometry",this.parameters={points:t,segments:e,phiStart:n,phiLength:r},e=Math.floor(e),r=Fn.clamp(r,0,2*Math.PI);const i=[],s=[],o=[],a=1/e,l=new Yn,c=new On;for(let h=0;h<=e;h++){const i=n+h*a*r,u=Math.sin(i),p=Math.cos(i);for(let n=0;n<=t.length-1;n++)l.x=t[n].x*u,l.y=t[n].y,l.z=t[n].x*p,s.push(l.x,l.y,l.z),c.x=h/e,c.y=n/(t.length-1),o.push(c.x,c.y)}for(let h=0;h<e;h++)for(let e=0;e<t.length-1;e++){const n=e+h*t.length,r=n,s=n+t.length,o=n+t.length+1,a=n+1;i.push(r,s,a),i.push(s,o,a)}if(this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2)),this.computeVertexNormals(),r===2*Math.PI){const n=this.attributes.normal.array,r=new Yn,i=new Yn,s=new Yn,o=e*t.length*3;for(let e=0,a=0;e<t.length;e++,a+=3)r.x=n[a+0],r.y=n[a+1],r.z=n[a+2],i.x=n[o+a+0],i.y=n[o+a+1],i.z=n[o+a+2],s.addVectors(r,i).normalize(),n[a+0]=n[o+a+0]=s.x,n[a+1]=n[o+a+1]=s.y,n[a+2]=n[o+a+2]=s.z}}}exports.LatheGeometry=exports.LatheBufferGeometry=_p;class bp extends Lu{constructor(t=1,e=0){super([1,0,0,-1,0,0,0,1,0,0,-1,0,0,0,1,0,0,-1],[0,2,4,0,4,3,0,3,5,0,5,2,1,2,5,1,5,3,1,3,4,1,4,2],t,e),this.type="OctahedronGeometry",this.parameters={radius:t,detail:e}}}function wp(t,e,n){ki.call(this),this.type="ParametricGeometry",this.parameters={func:t,slices:e,stacks:n};const r=[],i=[],s=[],o=[],a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=new Yn;t.length<3&&console.error("THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.");const p=e+1;for(let d=0;d<=n;d++){const r=d/n;for(let n=0;n<=e;n++){const p=n/e;t(p,r,l),i.push(l.x,l.y,l.z),p-1e-5>=0?(t(p-1e-5,r,c),h.subVectors(l,c)):(t(p+1e-5,r,c),h.subVectors(c,l)),r-1e-5>=0?(t(p,r-1e-5,c),u.subVectors(l,c)):(t(p,r+1e-5,c),u.subVectors(c,l)),a.crossVectors(h,u).normalize(),s.push(a.x,a.y,a.z),o.push(p,r)}}for(let d=0;d<n;d++)for(let t=0;t<e;t++){const e=d*p+t,n=d*p+t+1,i=(d+1)*p+t+1,s=(d+1)*p+t;r.push(e,n,s),r.push(n,i,s)}this.setIndex(r),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2))}exports.OctahedronGeometry=exports.OctahedronBufferGeometry=bp,wp.prototype=Object.create(ki.prototype),wp.prototype.constructor=wp;class Mp extends ki{constructor(t=.5,e=1,n=8,r=1,i=0,s=2*Math.PI){super(),this.type="RingGeometry",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:n,phiSegments:r,thetaStart:i,thetaLength:s},n=Math.max(3,n);const o=[],a=[],l=[],c=[];let h=t;const u=(e-t)/(r=Math.max(1,r)),p=new Yn,d=new On;for(let m=0;m<=r;m++){for(let t=0;t<=n;t++){const r=i+t/n*s;p.x=h*Math.cos(r),p.y=h*Math.sin(r),a.push(p.x,p.y,p.z),l.push(0,0,1),d.x=(p.x/e+1)/2,d.y=(p.y/e+1)/2,c.push(d.x,d.y)}h+=u}for(let m=0;m<r;m++){const t=m*(n+1);for(let e=0;e<n;e++){const r=e+t,i=r,s=r+n+1,a=r+n+2,l=r+1;o.push(i,s,l),o.push(s,a,l)}}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.RingGeometry=exports.RingBufferGeometry=Mp;class Sp extends ki{constructor(t,e=12){super(),this.type="ShapeGeometry",this.parameters={shapes:t,curveSegments:e};const n=[],r=[],i=[],s=[];let o=0,a=0;if(!1===Array.isArray(t))l(t);else for(let c=0;c<t.length;c++)l(t[c]),this.addGroup(o,a,c),o+=a,a=0;function l(t){const o=r.length/3,l=t.extractPoints(e);let c=l.shape;const h=l.holes;!1===dp.isClockWise(c)&&(c=c.reverse());for(let e=0,n=h.length;e<n;e++){const t=h[e];!0===dp.isClockWise(t)&&(h[e]=t.reverse())}const u=dp.triangulateShape(c,h);for(let e=0,n=h.length;e<n;e++){const t=h[e];c=c.concat(t)}for(let e=0,n=c.length;e<n;e++){const t=c[e];r.push(t.x,t.y,0),i.push(0,0,1),s.push(t.x,t.y)}for(let e=0,r=u.length;e<r;e++){const t=u[e],r=t[0]+o,i=t[1]+o,s=t[2]+o;n.push(r,i,s),a+=3}}this.setIndex(n),this.setAttribute("position",new Ci(r,3)),this.setAttribute("normal",new Ci(i,3)),this.setAttribute("uv",new Ci(s,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return Tp(this.parameters.shapes,t)}}function Tp(t,e){if(e.shapes=[],Array.isArray(t))for(let n=0,r=t.length;n<r;n++){const r=t[n];e.shapes.push(r.uuid)}else e.shapes.push(t.uuid);return e}exports.ShapeGeometry=exports.ShapeBufferGeometry=Sp;class Ep extends ki{constructor(t=1,e=8,n=6,r=0,i=2*Math.PI,s=0,o=Math.PI){super(),this.type="SphereGeometry",this.parameters={radius:t,widthSegments:e,heightSegments:n,phiStart:r,phiLength:i,thetaStart:s,thetaLength:o},e=Math.max(3,Math.floor(e)),n=Math.max(2,Math.floor(n));const a=Math.min(s+o,Math.PI);let l=0;const c=[],h=new Yn,u=new Yn,p=[],d=[],m=[],f=[];for(let g=0;g<=n;g++){const p=[],x=g/n;let v=0;0==g&&0==s?v=.5/e:g==n&&a==Math.PI&&(v=-.5/e);for(let n=0;n<=e;n++){const a=n/e;h.x=-t*Math.cos(r+a*i)*Math.sin(s+x*o),h.y=t*Math.cos(s+x*o),h.z=t*Math.sin(r+a*i)*Math.sin(s+x*o),d.push(h.x,h.y,h.z),u.copy(h).normalize(),m.push(u.x,u.y,u.z),f.push(a+v,1-x),p.push(l++)}c.push(p)}for(let g=0;g<n;g++)for(let t=0;t<e;t++){const e=c[g][t+1],r=c[g][t],i=c[g+1][t],o=c[g+1][t+1];(0!==g||s>0)&&p.push(e,r,o),(g!==n-1||a<Math.PI)&&p.push(r,i,o)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.SphereGeometry=exports.SphereBufferGeometry=Ep;class Ap extends Lu{constructor(t=1,e=0){super([1,1,1,-1,-1,1,-1,1,-1,1,-1,-1],[2,1,0,0,3,2,1,3,0,2,3,1],t,e),this.type="TetrahedronGeometry",this.parameters={radius:t,detail:e}}}exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=Ap;class Lp extends gp{constructor(t,e={}){const n=e.font;if(!n||!n.isFont)return console.error("THREE.TextGeometry: font parameter is not an instance of THREE.Font."),new ki;const r=n.generateShapes(t,e.size);e.depth=void 0!==e.height?e.height:50,void 0===e.bevelThickness&&(e.bevelThickness=10),void 0===e.bevelSize&&(e.bevelSize=8),void 0===e.bevelEnabled&&(e.bevelEnabled=!1),super(r,e),this.type="TextGeometry"}}exports.TextGeometry=exports.TextBufferGeometry=Lp;class Rp extends ki{constructor(t=1,e=.4,n=8,r=6,i=2*Math.PI){super(),this.type="TorusGeometry",this.parameters={radius:t,tube:e,radialSegments:n,tubularSegments:r,arc:i},n=Math.floor(n),r=Math.floor(r);const s=[],o=[],a=[],l=[],c=new Yn,h=new Yn,u=new Yn;for(let p=0;p<=n;p++)for(let s=0;s<=r;s++){const d=s/r*i,m=p/n*Math.PI*2;h.x=(t+e*Math.cos(m))*Math.cos(d),h.y=(t+e*Math.cos(m))*Math.sin(d),h.z=e*Math.sin(m),o.push(h.x,h.y,h.z),c.x=t*Math.cos(d),c.y=t*Math.sin(d),u.subVectors(h,c).normalize(),a.push(u.x,u.y,u.z),l.push(s/r),l.push(p/n)}for(let p=1;p<=n;p++)for(let t=1;t<=r;t++){const e=(r+1)*p+t-1,n=(r+1)*(p-1)+t-1,i=(r+1)*(p-1)+t,o=(r+1)*p+t;s.push(e,n,o),s.push(n,i,o)}this.setIndex(s),this.setAttribute("position",new Ci(o,3)),this.setAttribute("normal",new Ci(a,3)),this.setAttribute("uv",new Ci(l,2))}}exports.TorusGeometry=exports.TorusBufferGeometry=Rp;class Cp extends ki{constructor(t=1,e=.4,n=64,r=8,i=2,s=3){super(),this.type="TorusKnotGeometry",this.parameters={radius:t,tube:e,tubularSegments:n,radialSegments:r,p:i,q:s},n=Math.floor(n),r=Math.floor(r);const o=[],a=[],l=[],c=[],h=new Yn,u=new Yn,p=new Yn,d=new Yn,m=new Yn,f=new Yn,g=new Yn;for(let v=0;v<=n;++v){const o=v/n*i*Math.PI*2;x(o,i,s,t,p),x(o+.01,i,s,t,d),f.subVectors(d,p),g.addVectors(d,p),m.crossVectors(f,g),g.crossVectors(m,f),m.normalize(),g.normalize();for(let t=0;t<=r;++t){const i=t/r*Math.PI*2,s=-e*Math.cos(i),o=e*Math.sin(i);h.x=p.x+(s*g.x+o*m.x),h.y=p.y+(s*g.y+o*m.y),h.z=p.z+(s*g.z+o*m.z),a.push(h.x,h.y,h.z),u.subVectors(h,p).normalize(),l.push(u.x,u.y,u.z),c.push(v/n),c.push(t/r)}}for(let v=1;v<=n;v++)for(let t=1;t<=r;t++){const e=(r+1)*(v-1)+(t-1),n=(r+1)*v+(t-1),i=(r+1)*v+t,s=(r+1)*(v-1)+t;o.push(e,n,s),o.push(n,i,s)}function x(t,e,n,r,i){const s=Math.cos(t),o=Math.sin(t),a=n/e*t,l=Math.cos(a);i.x=r*(2+l)*.5*s,i.y=r*(2+l)*o*.5,i.z=r*Math.sin(a)*.5}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=Cp;class Pp extends ki{constructor(t,e=64,n=1,r=8,i=!1){super(),this.type="TubeGeometry",this.parameters={path:t,tubularSegments:e,radius:n,radialSegments:r,closed:i};const s=t.computeFrenetFrames(e,i);this.tangents=s.tangents,this.normals=s.normals,this.binormals=s.binormals;const o=new Yn,a=new Yn,l=new On;let c=new Yn;const h=[],u=[],p=[],d=[];function m(i){c=t.getPointAt(i/e,c);const l=s.normals[i],p=s.binormals[i];for(let t=0;t<=r;t++){const e=t/r*Math.PI*2,i=Math.sin(e),s=-Math.cos(e);a.x=s*l.x+i*p.x,a.y=s*l.y+i*p.y,a.z=s*l.z+i*p.z,a.normalize(),u.push(a.x,a.y,a.z),o.x=c.x+n*a.x,o.y=c.y+n*a.y,o.z=c.z+n*a.z,h.push(o.x,o.y,o.z)}}!function(){for(let t=0;t<e;t++)m(t);m(!1===i?e:0),function(){for(let t=0;t<=e;t++)for(let n=0;n<=r;n++)l.x=t/e,l.y=n/r,p.push(l.x,l.y)}(),function(){for(let t=1;t<=e;t++)for(let e=1;e<=r;e++){const n=(r+1)*(t-1)+(e-1),i=(r+1)*t+(e-1),s=(r+1)*t+e,o=(r+1)*(t-1)+e;d.push(n,i,o),d.push(i,s,o)}}()}(),this.setIndex(d),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return t.path=this.parameters.path.toJSON(),t}}exports.TubeGeometry=exports.TubeBufferGeometry=Pp;class Dp extends ki{constructor(t){if(super(),this.type="WireframeGeometry",!0===t.isGeometry)return void console.error("THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const e=[],n=[0,0],r={},i=new Yn;if(null!==t.index){const s=t.attributes.position,o=t.index;let a=t.groups;0===a.length&&(a=[{start:0,count:o.count,materialIndex:0}]);for(let t=0,e=a.length;t<e;++t){const e=a[t],i=e.start;for(let t=i,s=i+e.count;t<s;t+=3)for(let e=0;e<3;e++){const i=o.getX(t+e),s=o.getX(t+(e+1)%3);n[0]=Math.min(i,s),n[1]=Math.max(i,s);const a=n[0]+","+n[1];void 0===r[a]&&(r[a]={index1:n[0],index2:n[1]})}}for(const t in r){const n=r[t];i.fromBufferAttribute(s,n.index1),e.push(i.x,i.y,i.z),i.fromBufferAttribute(s,n.index2),e.push(i.x,i.y,i.z)}}else{const n=t.attributes.position;for(let t=0,r=n.count/3;t<r;t++)for(let s=0;s<3;s++){const r=3*t+s;i.fromBufferAttribute(n,r),e.push(i.x,i.y,i.z);const o=3*t+(s+1)%3;i.fromBufferAttribute(n,o),e.push(i.x,i.y,i.z)}}this.setAttribute("position",new Ci(e,3))}}exports.WireframeGeometry=Dp;var Ip=Object.freeze({__proto__:null,BoxGeometry:cs,BoxBufferGeometry:cs,CircleGeometry:Tu,CircleBufferGeometry:Tu,ConeGeometry:Au,ConeBufferGeometry:Au,CylinderGeometry:Eu,CylinderBufferGeometry:Eu,DodecahedronGeometry:Ru,DodecahedronBufferGeometry:Ru,EdgesGeometry:Bu,ExtrudeGeometry:gp,ExtrudeBufferGeometry:gp,IcosahedronGeometry:yp,IcosahedronBufferGeometry:yp,LatheGeometry:_p,LatheBufferGeometry:_p,OctahedronGeometry:bp,OctahedronBufferGeometry:bp,ParametricGeometry:wp,ParametricBufferGeometry:wp,PlaneGeometry:Rs,PlaneBufferGeometry:Rs,PolyhedronGeometry:Lu,PolyhedronBufferGeometry:Lu,RingGeometry:Mp,RingBufferGeometry:Mp,ShapeGeometry:Sp,ShapeBufferGeometry:Sp,SphereGeometry:Ep,SphereBufferGeometry:Ep,TetrahedronGeometry:Ap,TetrahedronBufferGeometry:Ap,TextGeometry:Lp,TextBufferGeometry:Lp,TorusGeometry:Rp,TorusBufferGeometry:Rp,TorusKnotGeometry:Cp,TorusKnotBufferGeometry:Cp,TubeGeometry:Pp,TubeBufferGeometry:Pp,WireframeGeometry:Dp});class Bp extends hi{constructor(t){super(),this.type="ShadowMaterial",this.color=new xi(0),this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this}}exports.ShadowMaterial=Bp,Bp.prototype.isShadowMaterial=!0;class Np extends fs{constructor(t){super(t),this.type="RawShaderMaterial"}}function Fp(t){hi.call(this),this.defines={STANDARD:""},this.type="MeshStandardMaterial",this.color=new xi(16777215),this.roughness=1,this.metalness=0,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapIntensity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.vertexTangents=!1,this.setValues(t)}function Op(t){Fp.call(this),this.defines={STANDARD:"",PHYSICAL:""},this.type="MeshPhysicalMaterial",this.clearcoat=0,this.clearcoatMap=null,this.clearcoatRoughness=0,this.clearcoatRoughnessMap=null,this.clearcoatNormalScale=new On(1,1),this.clearcoatNormalMap=null,this.reflectivity=.5,Object.defineProperty(this,"ior",{get:function(){return(1+.4*this.reflectivity)/(1-.4*this.reflectivity)},set:function(t){this.reflectivity=Fn.clamp(2.5*(t-1)/(t+1),0,1)}}),this.sheen=null,this.transmission=0,this.transmissionMap=null,this.setValues(t)}exports.RawShaderMaterial=Np,Np.prototype.isRawShaderMaterial=!0,Fp.prototype=Object.create(hi.prototype),Fp.prototype.constructor=Fp,Fp.prototype.isMeshStandardMaterial=!0,Fp.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.defines={STANDARD:""},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapIntensity=t.envMapIntensity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this.vertexTangents=t.vertexTangents,this},Op.prototype=Object.create(Fp.prototype),Op.prototype.constructor=Op,Op.prototype.isMeshPhysicalMaterial=!0,Op.prototype.copy=function(t){return Fp.prototype.copy.call(this,t),this.defines={STANDARD:"",PHYSICAL:""},this.clearcoat=t.clearcoat,this.clearcoatMap=t.clearcoatMap,this.clearcoatRoughness=t.clearcoatRoughness,this.clearcoatRoughnessMap=t.clearcoatRoughnessMap,this.clearcoatNormalMap=t.clearcoatNormalMap,this.clearcoatNormalScale.copy(t.clearcoatNormalScale),this.reflectivity=t.reflectivity,t.sheen?this.sheen=(this.sheen||new xi).copy(t.sheen):this.sheen=null,this.transmission=t.transmission,this.transmissionMap=t.transmissionMap,this};class zp extends hi{constructor(t){super(),this.type="MeshPhongMaterial",this.color=new xi(16777215),this.specular=new xi(1118481),this.shininess=30,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.specular.copy(t.specular),this.shininess=t.shininess,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshPhongMaterial=zp,zp.prototype.isMeshPhongMaterial=!0;class Gp extends hi{constructor(t){super(),this.defines={TOON:""},this.type="MeshToonMaterial",this.color=new xi(16777215),this.map=null,this.gradientMap=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.gradientMap=t.gradientMap,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshToonMaterial=Gp,Gp.prototype.isMeshToonMaterial=!0;class Hp extends hi{constructor(t){super(),this.type="MeshNormalMaterial",this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshNormalMaterial=Hp,Hp.prototype.isMeshNormalMaterial=!0;class Up extends hi{constructor(t){super(),this.type="MeshLambertMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshLambertMaterial=Up,Up.prototype.isMeshLambertMaterial=!0;class kp extends hi{constructor(t){super(),this.defines={MATCAP:""},this.type="MeshMatcapMaterial",this.color=new xi(16777215),this.matcap=null,this.map=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.defines={MATCAP:""},this.color.copy(t.color),this.matcap=t.matcap,this.map=t.map,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshMatcapMaterial=kp,kp.prototype.isMeshMatcapMaterial=!0;class Vp extends ru{constructor(t){super(),this.type="LineDashedMaterial",this.scale=1,this.dashSize=3,this.gapSize=1,this.setValues(t)}copy(t){return super.copy(t),this.scale=t.scale,this.dashSize=t.dashSize,this.gapSize=t.gapSize,this}}exports.LineDashedMaterial=Vp,Vp.prototype.isLineDashedMaterial=!0;var Wp=Object.freeze({__proto__:null,ShadowMaterial:Bp,SpriteMaterial:Mh,RawShaderMaterial:Np,ShaderMaterial:fs,PointsMaterial:mu,MeshPhysicalMaterial:Op,MeshStandardMaterial:Fp,MeshPhongMaterial:zp,MeshToonMaterial:Gp,MeshNormalMaterial:Hp,MeshLambertMaterial:Up,MeshDepthMaterial:eh,MeshDistanceMaterial:nh,MeshBasicMaterial:vi,MeshMatcapMaterial:kp,LineDashedMaterial:Vp,LineBasicMaterial:ru,Material:hi});const jp={arraySlice:function(t,e,n){return jp.isTypedArray(t)?new t.constructor(t.subarray(e,void 0!==n?n:t.length)):t.slice(e,n)},convertArray:function(t,e,n){return!t||!n&&t.constructor===e?t:"number"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)},isTypedArray:function(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)},getKeyframeOrder:function(t){const e=t.length,n=new Array(e);for(let r=0;r!==e;++r)n[r]=r;return n.sort(function(e,n){return t[e]-t[n]}),n},sortedArray:function(t,e,n){const r=t.length,i=new t.constructor(r);for(let s=0,o=0;o!==r;++s){const r=n[s]*e;for(let n=0;n!==e;++n)i[o++]=t[r+n]}return i},flattenJSON:function(t,e,n,r){let i=1,s=t[0];for(;void 0!==s&&void 0===s[r];)s=t[i++];if(void 0===s)return;let o=s[r];if(void 0!==o)if(Array.isArray(o))do{void 0!==(o=s[r])&&(e.push(s.time),n.push.apply(n,o)),s=t[i++]}while(void 0!==s);else if(void 0!==o.toArray)do{void 0!==(o=s[r])&&(e.push(s.time),o.toArray(n,n.length)),s=t[i++]}while(void 0!==s);else do{void 0!==(o=s[r])&&(e.push(s.time),n.push(o)),s=t[i++]}while(void 0!==s)},subclip:function(t,e,n,r,i=30){const s=t.clone();s.name=e;const o=[];for(let l=0;l<s.tracks.length;++l){const t=s.tracks[l],e=t.getValueSize(),a=[],c=[];for(let s=0;s<t.times.length;++s){const o=t.times[s]*i;if(!(o<n||o>=r)){a.push(t.times[s]);for(let n=0;n<e;++n)c.push(t.values[s*e+n])}}0!==a.length&&(t.times=jp.convertArray(a,t.times.constructor),t.values=jp.convertArray(c,t.values.constructor),o.push(t))}s.tracks=o;let a=1/0;for(let l=0;l<s.tracks.length;++l)a>s.tracks[l].times[0]&&(a=s.tracks[l].times[0]);for(let l=0;l<s.tracks.length;++l)s.tracks[l].shift(-1*a);return s.resetDuration(),s},makeClipAdditive:function(t,e=0,n=t,r=30){r<=0&&(r=30);const i=n.tracks.length,s=e/r;for(let o=0;o<i;++o){const e=n.tracks[o],r=e.ValueTypeName;if("bool"===r||"string"===r)continue;const i=t.tracks.find(function(t){return t.name===e.name&&t.ValueTypeName===r});if(void 0===i)continue;let a=0;const l=e.getValueSize();e.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(a=l/3);let c=0;const h=i.getValueSize();i.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(c=h/3);const u=e.times.length-1;let p;if(s<=e.times[0]){const t=a,n=l-a;p=jp.arraySlice(e.values,t,n)}else if(s>=e.times[u]){const t=u*l+a,n=t+l-a;p=jp.arraySlice(e.values,t,n)}else{const t=e.createInterpolant(),n=a,r=l-a;t.evaluate(s),p=jp.arraySlice(t.resultBuffer,n,r)}if("quaternion"===r){(new Xn).fromArray(p).normalize().conjugate().toArray(p)}const d=i.times.length;for(let t=0;t<d;++t){const e=t*h+c;if("quaternion"===r)Xn.multiplyQuaternionsFlat(i.values,e,p,0,i.values,e);else{const t=h-2*c;for(let n=0;n<t;++n)i.values[e+n]-=p[n]}}}return t.blendMode=Ve,t}};function qp(t,e,n,r){this.parameterPositions=t,this._cachedIndex=0,this.resultBuffer=void 0!==r?r:new e.constructor(n),this.sampleValues=e,this.valueSize=n}function Xp(t,e,n,r){qp.call(this,t,e,n,r),this._weightPrev=-0,this._offsetPrev=-0,this._weightNext=-0,this._offsetNext=-0}function Yp(t,e,n,r){qp.call(this,t,e,n,r)}function Zp(t,e,n,r){qp.call(this,t,e,n,r)}exports.AnimationUtils=jp,Object.assign(qp.prototype,{evaluate:function(t){const e=this.parameterPositions;let n=this._cachedIndex,r=e[n],i=e[n-1];t:{e:{let s;n:{r:if(!(t<r)){for(let s=n+2;;){if(void 0===r){if(t<i)break r;return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,t,i)}if(n===s)break;if(i=r,t<(r=e[++n]))break e}s=e.length;break n}if(t>=i)break t;{const o=e[1];t<o&&(n=2,i=o);for(let s=n-2;;){if(void 0===i)return this._cachedIndex=0,this.beforeStart_(0,t,r);if(n===s)break;if(r=i,t>=(i=e[--n-1]))break e}s=n,n=0}}for(;n<s;){const r=n+s>>>1;t<e[r]?s=r:n=r+1}if(r=e[n],void 0===(i=e[n-1]))return this._cachedIndex=0,this.beforeStart_(0,t,r);if(void 0===r)return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,i,t)}this._cachedIndex=n,this.intervalChanged_(n,i,r)}return this.interpolate_(n,i,t,r)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||this.DefaultSettings_},copySampleValue_:function(t){const e=this.resultBuffer,n=this.sampleValues,r=this.valueSize,i=t*r;for(let s=0;s!==r;++s)e[s]=n[i+s];return e},interpolate_:function(){throw new Error("call to abstract method")},intervalChanged_:function(){}}),Object.assign(qp.prototype,{beforeStart_:qp.prototype.copySampleValue_,afterEnd_:qp.prototype.copySampleValue_}),Xp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Xp,DefaultSettings_:{endingStart:Ge,endingEnd:Ge},intervalChanged_:function(t,e,n){const r=this.parameterPositions;let i=t-2,s=t+1,o=r[i],a=r[s];if(void 0===o)switch(this.getSettings_().endingStart){case He:i=t,o=2*e-n;break;case Ue:o=e+r[i=r.length-2]-r[i+1];break;default:i=t,o=n}if(void 0===a)switch(this.getSettings_().endingEnd){case He:s=t,a=2*n-e;break;case Ue:s=1,a=n+r[1]-r[0];break;default:s=t-1,a=e}const l=.5*(n-e),c=this.valueSize;this._weightPrev=l/(e-o),this._weightNext=l/(a-n),this._offsetPrev=i*c,this._offsetNext=s*c},interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=this._offsetPrev,h=this._offsetNext,u=this._weightPrev,p=this._weightNext,d=(n-e)/(r-e),m=d*d,f=m*d,g=-u*f+2*u*m-u*d,x=(1+u)*f+(-1.5-2*u)*m+(-.5+u)*d+1,v=(-1-p)*f+(1.5+p)*m+.5*d,y=p*f-p*m;for(let _=0;_!==o;++_)i[_]=g*s[c+_]+x*s[l+_]+v*s[a+_]+y*s[h+_];return i}}),Yp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Yp,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=(n-e)/(r-e),h=1-c;for(let u=0;u!==o;++u)i[u]=s[l+u]*h+s[a+u]*c;return i}}),Zp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Zp,interpolate_:function(t){return this.copySampleValue_(t-1)}});class Jp{constructor(t,e,n,r){if(void 0===t)throw new Error("THREE.KeyframeTrack: track name is undefined");if(void 0===e||0===e.length)throw new Error("THREE.KeyframeTrack: no keyframes in track named "+t);this.name=t,this.times=jp.convertArray(e,this.TimeBufferType),this.values=jp.convertArray(n,this.ValueBufferType),this.setInterpolation(r||this.DefaultInterpolation)}static toJSON(t){const e=t.constructor;let n;if(e.toJSON!==this.toJSON)n=e.toJSON(t);else{n={name:t.name,times:jp.convertArray(t.times,Array),values:jp.convertArray(t.values,Array)};const e=t.getInterpolation();e!==t.DefaultInterpolation&&(n.interpolation=e)}return n.type=t.ValueTypeName,n}InterpolantFactoryMethodDiscrete(t){return new Zp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodLinear(t){return new Yp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodSmooth(t){return new Xp(this.times,this.values,this.getValueSize(),t)}setInterpolation(t){let e;switch(t){case Fe:e=this.InterpolantFactoryMethodDiscrete;break;case Oe:e=this.InterpolantFactoryMethodLinear;break;case ze:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){const e="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(e);this.setInterpolation(this.DefaultInterpolation)}return console.warn("THREE.KeyframeTrack:",e),this}return this.createInterpolant=e,this}getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return Fe;case this.InterpolantFactoryMethodLinear:return Oe;case this.InterpolantFactoryMethodSmooth:return ze}}getValueSize(){return this.values.length/this.times.length}shift(t){if(0!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]+=t}return this}scale(t){if(1!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]*=t}return this}trim(t,e){const n=this.times,r=n.length;let i=0,s=r-1;for(;i!==r&&n[i]<t;)++i;for(;-1!==s&&n[s]>e;)--s;if(++s,0!==i||s!==r){i>=s&&(i=(s=Math.max(s,1))-1);const t=this.getValueSize();this.times=jp.arraySlice(n,i,s),this.values=jp.arraySlice(this.values,i*t,s*t)}return this}validate(){let t=!0;const e=this.getValueSize();e-Math.floor(e)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),t=!1);const n=this.times,r=this.values,i=n.length;0===i&&(console.error("THREE.KeyframeTrack: Track is empty.",this),t=!1);let s=null;for(let o=0;o!==i;o++){const e=n[o];if("number"==typeof e&&isNaN(e)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,o,e),t=!1;break}if(null!==s&&s>e){console.error("THREE.KeyframeTrack: Out of order keys.",this,o,e,s),t=!1;break}s=e}if(void 0!==r&&jp.isTypedArray(r))for(let o=0,a=r.length;o!==a;++o){const e=r[o];if(isNaN(e)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,o,e),t=!1;break}}return t}optimize(){const t=jp.arraySlice(this.times),e=jp.arraySlice(this.values),n=this.getValueSize(),r=this.getInterpolation()===ze,i=t.length-1;let s=1;for(let o=1;o<i;++o){let i=!1;const a=t[o];if(a!==t[o+1]&&(1!==o||a!==t[0]))if(r)i=!0;else{const t=o*n,r=t-n,s=t+n;for(let o=0;o!==n;++o){const n=e[t+o];if(n!==e[r+o]||n!==e[s+o]){i=!0;break}}}if(i){if(o!==s){t[s]=t[o];const r=o*n,i=s*n;for(let t=0;t!==n;++t)e[i+t]=e[r+t]}++s}}if(i>0){t[s]=t[i];for(let t=i*n,r=s*n,o=0;o!==n;++o)e[r+o]=e[t+o];++s}return s!==t.length?(this.times=jp.arraySlice(t,0,s),this.values=jp.arraySlice(e,0,s*n)):(this.times=t,this.values=e),this}clone(){const t=jp.arraySlice(this.times,0),e=jp.arraySlice(this.values,0),n=new(0,this.constructor)(this.name,t,e);return n.createInterpolant=this.createInterpolant,n}}exports.KeyframeTrack=Jp,Jp.prototype.TimeBufferType=Float32Array,Jp.prototype.ValueBufferType=Float32Array,Jp.prototype.DefaultInterpolation=Oe;class Qp extends Jp{}exports.BooleanKeyframeTrack=Qp,Qp.prototype.ValueTypeName="bool",Qp.prototype.ValueBufferType=Array,Qp.prototype.DefaultInterpolation=Fe,Qp.prototype.InterpolantFactoryMethodLinear=void 0,Qp.prototype.InterpolantFactoryMethodSmooth=void 0;class Kp extends Jp{}exports.ColorKeyframeTrack=Kp,Kp.prototype.ValueTypeName="color";class $p extends Jp{}function td(t,e,n,r){qp.call(this,t,e,n,r)}exports.NumberKeyframeTrack=$p,$p.prototype.ValueTypeName="number",td.prototype=Object.assign(Object.create(qp.prototype),{constructor:td,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=(n-e)/(r-e);let l=t*o;for(let c=l+o;l!==c;l+=4)Xn.slerpFlat(i,0,s,l-o,s,l,a);return i}});class ed extends Jp{InterpolantFactoryMethodLinear(t){return new td(this.times,this.values,this.getValueSize(),t)}}exports.QuaternionKeyframeTrack=ed,ed.prototype.ValueTypeName="quaternion",ed.prototype.DefaultInterpolation=Oe,ed.prototype.InterpolantFactoryMethodSmooth=void 0;class nd extends Jp{}exports.StringKeyframeTrack=nd,nd.prototype.ValueTypeName="string",nd.prototype.ValueBufferType=Array,nd.prototype.DefaultInterpolation=Fe,nd.prototype.InterpolantFactoryMethodLinear=void 0,nd.prototype.InterpolantFactoryMethodSmooth=void 0;class rd extends Jp{}exports.VectorKeyframeTrack=rd,rd.prototype.ValueTypeName="vector";class id{constructor(t,e=-1,n,r=ke){this.name=t,this.tracks=n,this.duration=e,this.blendMode=r,this.uuid=Fn.generateUUID(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],n=t.tracks,r=1/(t.fps||1);for(let s=0,o=n.length;s!==o;++s)e.push(od(n[s]).scale(r));const i=new this(t.name,t.duration,e,t.blendMode);return i.uuid=t.uuid,i}static toJSON(t){const e=[],n=t.tracks,r={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let i=0,s=n.length;i!==s;++i)e.push(Jp.toJSON(n[i]));return r}static CreateFromMorphTargetSequence(t,e,n,r){const i=e.length,s=[];for(let o=0;o<i;o++){let t=[],a=[];t.push((o+i-1)%i,o,(o+1)%i),a.push(0,1,0);const l=jp.getKeyframeOrder(t);t=jp.sortedArray(t,1,l),a=jp.sortedArray(a,1,l),r||0!==t[0]||(t.push(i),a.push(a[0])),s.push(new $p(".morphTargetInfluences["+e[o].name+"]",t,a).scale(1/n))}return new this(t,-1,s)}static findByName(t,e){let n=t;if(!Array.isArray(t)){const e=t;n=e.geometry&&e.geometry.animations||e.animations}for(let r=0;r<n.length;r++)if(n[r].name===e)return n[r];return null}static CreateClipsFromMorphTargetSequences(t,e,n){const r={},i=/^([\w-]*?)([\d]+)$/;for(let o=0,a=t.length;o<a;o++){const e=t[o],n=e.name.match(i);if(n&&n.length>1){const t=n[1];let i=r[t];i||(r[t]=i=[]),i.push(e)}}const s=[];for(const o in r)s.push(this.CreateFromMorphTargetSequence(o,r[o],e,n));return s}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const n=function(t,e,n,r,i){if(0!==n.length){const s=[],o=[];jp.flattenJSON(n,s,o,r),0!==s.length&&i.push(new t(e,s,o))}},r=[],i=t.name||"default",s=t.fps||30,o=t.blendMode;let a=t.length||-1;const l=t.hierarchy||[];for(let c=0;c<l.length;c++){const t=l[c].keys;if(t&&0!==t.length)if(t[0].morphTargets){const e={};let n;for(n=0;n<t.length;n++)if(t[n].morphTargets)for(let r=0;r<t[n].morphTargets.length;r++)e[t[n].morphTargets[r]]=-1;for(const i in e){const e=[],s=[];for(let r=0;r!==t[n].morphTargets.length;++r){const r=t[n];e.push(r.time),s.push(r.morphTarget===i?1:0)}r.push(new $p(".morphTargetInfluence["+i+"]",e,s))}a=e.length*(s||1)}else{const i=".bones["+e[c].name+"]";n(rd,i+".position",t,"pos",r),n(ed,i+".quaternion",t,"rot",r),n(rd,i+".scale",t,"scl",r)}}return 0===r.length?null:new this(i,a,r,o)}resetDuration(){let t=0;for(let e=0,n=this.tracks.length;e!==n;++e){const n=this.tracks[e];t=Math.max(t,n.times[n.times.length-1])}return this.duration=t,this}trim(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this}validate(){let t=!0;for(let e=0;e<this.tracks.length;e++)t=t&&this.tracks[e].validate();return t}optimize(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}clone(){const t=[];for(let e=0;e<this.tracks.length;e++)t.push(this.tracks[e].clone());return new this.constructor(this.name,this.duration,t,this.blendMode)}toJSON(){return this.constructor.toJSON(this)}}function sd(t){switch(t.toLowerCase()){case"scalar":case"double":case"float":case"number":case"integer":return $p;case"vector":case"vector2":case"vector3":case"vector4":return rd;case"color":return Kp;case"quaternion":return ed;case"bool":case"boolean":return Qp;case"string":return nd}throw new Error("THREE.KeyframeTrack: Unsupported typeName: "+t)}function od(t){if(void 0===t.type)throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");const e=sd(t.type);if(void 0===t.times){const e=[],n=[];jp.flattenJSON(t.keys,e,n,"value"),t.times=e,t.values=n}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)}exports.AnimationClip=id;const ad={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}};function ld(t,e,n){const r=this;let i=!1,s=0,o=0,a=void 0;const l=[];this.onStart=void 0,this.onLoad=t,this.onProgress=e,this.onError=n,this.itemStart=function(t){o++,!1===i&&void 0!==r.onStart&&r.onStart(t,s,o),i=!0},this.itemEnd=function(t){s++,void 0!==r.onProgress&&r.onProgress(t,s,o),s===o&&(i=!1,void 0!==r.onLoad&&r.onLoad())},this.itemError=function(t){void 0!==r.onError&&r.onError(t)},this.resolveURL=function(t){return a?a(t):t},this.setURLModifier=function(t){return a=t,this},this.addHandler=function(t,e){return l.push(t,e),this},this.removeHandler=function(t){const e=l.indexOf(t);return-1!==e&&l.splice(e,2),this},this.getHandler=function(t){for(let e=0,n=l.length;e<n;e+=2){const n=l[e],r=l[e+1];if(n.global&&(n.lastIndex=0),n.test(t))return r}return null}}exports.Cache=ad;const cd=new ld;function hd(t){this.manager=void 0!==t?t:cd,this.crossOrigin="anonymous",this.withCredentials=!1,this.path="",this.resourcePath="",this.requestHeader={}}exports.DefaultLoadingManager=cd,Object.assign(hd.prototype,{load:function(){},loadAsync:function(t,e){const n=this;return new Promise(function(r,i){n.load(t,r,e,i)})},parse:function(){},setCrossOrigin:function(t){return this.crossOrigin=t,this},setWithCredentials:function(t){return this.withCredentials=t,this},setPath:function(t){return this.path=t,this},setResourcePath:function(t){return this.resourcePath=t,this},setRequestHeader:function(t){return this.requestHeader=t,this}});const ud={};function pd(t){hd.call(this,t)}pd.prototype=Object.assign(Object.create(hd.prototype),{constructor:pd,load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;if(void 0!==ud[t])return void ud[t].push({onLoad:e,onProgress:n,onError:r});const o=t.match(/^data:(.*?)(;base64)?,(.*)$/);let a;if(o){const n=o[1],s=!!o[2];let a=o[3];a=decodeURIComponent(a),s&&(a=atob(a));try{let s;const o=(this.responseType||"").toLowerCase();switch(o){case"arraybuffer":case"blob":const t=new Uint8Array(a.length);for(let n=0;n<a.length;n++)t[n]=a.charCodeAt(n);s="blob"===o?new Blob([t.buffer],{type:n}):t.buffer;break;case"document":const e=new DOMParser;s=e.parseFromString(a,n);break;case"json":s=JSON.parse(a);break;default:s=a}setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0)}catch(l){setTimeout(function(){r&&r(l),i.manager.itemError(t),i.manager.itemEnd(t)},0)}}else{ud[t]=[],ud[t].push({onLoad:e,onProgress:n,onError:r}),(a=new XMLHttpRequest).open("GET",t,!0),a.addEventListener("load",function(e){const n=this.response,r=ud[t];if(delete ud[t],200===this.status||0===this.status){0===this.status&&console.warn("THREE.FileLoader: HTTP Status 0 received."),ad.add(t,n);for(let t=0,e=r.length;t<e;t++){const e=r[t];e.onLoad&&e.onLoad(n)}i.manager.itemEnd(t)}else{for(let t=0,n=r.length;t<n;t++){const n=r[t];n.onError&&n.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)}},!1),a.addEventListener("progress",function(e){const n=ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onProgress&&r.onProgress(e)}},!1),a.addEventListener("error",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),a.addEventListener("abort",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),void 0!==this.responseType&&(a.responseType=this.responseType),void 0!==this.withCredentials&&(a.withCredentials=this.withCredentials),a.overrideMimeType&&a.overrideMimeType(void 0!==this.mimeType?this.mimeType:"text/plain");for(const t in this.requestHeader)a.setRequestHeader(t,this.requestHeader[t]);a.send(null)}return i.manager.itemStart(t),a},setResponseType:function(t){return this.responseType=t,this},setMimeType:function(t){return this.mimeType=t,this}});class dd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=[];for(let n=0;n<t.length;n++){const r=id.parse(t[n]);e.push(r)}return e}}function md(t){hd.call(this,t)}exports.AnimationLoader=dd,md.prototype=Object.assign(Object.create(hd.prototype),{constructor:md,load:function(t,e,n,r){const i=this,s=[],o=new wu,a=new pd(this.manager);a.setPath(this.path),a.setResponseType("arraybuffer"),a.setRequestHeader(this.requestHeader),a.setWithCredentials(i.withCredentials);let l=0;function c(c){a.load(t[c],function(t){const n=i.parse(t,!0);s[c]={width:n.width,height:n.height,format:n.format,mipmaps:n.mipmaps},6===(l+=1)&&(1===n.mipmapCount&&(o.minFilter=gt),o.image=s,o.format=n.format,o.needsUpdate=!0,e&&e(o))},n,r)}if(Array.isArray(t))for(let h=0,u=t.length;h<u;++h)c(h);else a.load(t,function(t){const n=i.parse(t,!0);if(n.isCubemap){const t=n.mipmaps.length/n.mipmapCount;for(let e=0;e<t;e++){s[e]={mipmaps:[]};for(let t=0;t<n.mipmapCount;t++)s[e].mipmaps.push(n.mipmaps[e*n.mipmapCount+t]),s[e].format=n.format,s[e].width=n.width,s[e].height=n.height}o.image=s}else o.image.width=n.width,o.image.height=n.height,o.mipmaps=n.mipmaps;1===n.mipmapCount&&(o.minFilter=gt),o.format=n.format,o.needsUpdate=!0,e&&e(o)},n,r);return o}});class fd extends hd{constructor(t){super(t)}load(t,e,n,r){void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o=document.createElementNS("http://www.w3.org/1999/xhtml","img");function a(){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),ad.add(t,this),e&&e(this),i.manager.itemEnd(t)}function l(e){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}return o.addEventListener("load",a,!1),o.addEventListener("error",l,!1),"data:"!==t.substr(0,5)&&void 0!==this.crossOrigin&&(o.crossOrigin=this.crossOrigin),i.manager.itemStart(t),o.src=t,o}}exports.ImageLoader=fd;class gd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=new bs,s=new fd(this.manager);s.setCrossOrigin(this.crossOrigin),s.setPath(this.path);let o=0;function a(n){s.load(t[n],function(t){i.images[n]=t,6===++o&&(i.needsUpdate=!0,e&&e(i))},void 0,r)}for(let l=0;l<t.length;++l)a(l);return i}}function xd(t){hd.call(this,t)}function vd(t){hd.call(this,t)}function yd(){this.type="Curve",this.arcLengthDivisions=200}exports.CubeTextureLoader=gd,xd.prototype=Object.assign(Object.create(hd.prototype),{constructor:xd,load:function(t,e,n,r){const i=this,s=new Ms,o=new pd(this.manager);return o.setResponseType("arraybuffer"),o.setRequestHeader(this.requestHeader),o.setPath(this.path),o.setWithCredentials(i.withCredentials),o.load(t,function(t){const n=i.parse(t);n&&(void 0!==n.image?s.image=n.image:void 0!==n.data&&(s.image.width=n.width,s.image.height=n.height,s.image.data=n.data),s.wrapS=void 0!==n.wrapS?n.wrapS:ct,s.wrapT=void 0!==n.wrapT?n.wrapT:ct,s.magFilter=void 0!==n.magFilter?n.magFilter:gt,s.minFilter=void 0!==n.minFilter?n.minFilter:gt,s.anisotropy=void 0!==n.anisotropy?n.anisotropy:1,void 0!==n.encoding&&(s.encoding=n.encoding),void 0!==n.flipY&&(s.flipY=n.flipY),void 0!==n.format&&(s.format=n.format),void 0!==n.type&&(s.type=n.type),void 0!==n.mipmaps&&(s.mipmaps=n.mipmaps,s.minFilter=yt),1===n.mipmapCount&&(s.minFilter=gt),s.needsUpdate=!0,e&&e(s,n))},n,r),s}}),vd.prototype=Object.assign(Object.create(hd.prototype),{constructor:vd,load:function(t,e,n,r){const i=new kn,s=new fd(this.manager);return s.setCrossOrigin(this.crossOrigin),s.setPath(this.path),s.load(t,function(n){i.image=n;const r=t.search(/\.jpe?g($|\?)/i)>0||0===t.search(/^data\:image\/jpeg/);i.format=r?Bt:Nt,i.needsUpdate=!0,void 0!==e&&e(i)},n,r),i}}),Object.assign(yd.prototype,{getPoint:function(){return console.warn("THREE.Curve: .getPoint() not implemented."),null},getPointAt:function(t,e){const n=this.getUtoTmapping(t);return this.getPoint(n,e)},getPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return e},getSpacedPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPointAt(n/t));return e},getLength:function(){const t=this.getLengths();return t[t.length-1]},getLengths:function(t){if(void 0===t&&(t=this.arcLengthDivisions),this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;const e=[];let n,r=this.getPoint(0),i=0;e.push(0);for(let s=1;s<=t;s++)i+=(n=this.getPoint(s/t)).distanceTo(r),e.push(i),r=n;return this.cacheArcLengths=e,e},updateArcLengths:function(){this.needsUpdate=!0,this.getLengths()},getUtoTmapping:function(t,e){const n=this.getLengths();let r=0;const i=n.length;let s;s=e||t*n[i-1];let o,a=0,l=i-1;for(;a<=l;)if((o=n[r=Math.floor(a+(l-a)/2)]-s)<0)a=r+1;else{if(!(o>0)){l=r;break}l=r-1}if(n[r=l]===s)return r/(i-1);const c=n[r];return(r+(s-c)/(n[r+1]-c))/(i-1)},getTangent:function(t,e){let n=t-1e-4,r=t+1e-4;n<0&&(n=0),r>1&&(r=1);const i=this.getPoint(n),s=this.getPoint(r),o=e||(i.isVector2?new On:new Yn);return o.copy(s).sub(i).normalize(),o},getTangentAt:function(t,e){const n=this.getUtoTmapping(t);return this.getTangent(n,e)},computeFrenetFrames:function(t,e){const n=new Yn,r=[],i=[],s=[],o=new Yn,a=new wr;for(let p=0;p<=t;p++){const e=p/t;r[p]=this.getTangentAt(e,new Yn),r[p].normalize()}i[0]=new Yn,s[0]=new Yn;let l=Number.MAX_VALUE;const c=Math.abs(r[0].x),h=Math.abs(r[0].y),u=Math.abs(r[0].z);c<=l&&(l=c,n.set(1,0,0)),h<=l&&(l=h,n.set(0,1,0)),u<=l&&n.set(0,0,1),o.crossVectors(r[0],n).normalize(),i[0].crossVectors(r[0],o),s[0].crossVectors(r[0],i[0]);for(let p=1;p<=t;p++){if(i[p]=i[p-1].clone(),s[p]=s[p-1].clone(),o.crossVectors(r[p-1],r[p]),o.length()>Number.EPSILON){o.normalize();const t=Math.acos(Fn.clamp(r[p-1].dot(r[p]),-1,1));i[p].applyMatrix4(a.makeRotationAxis(o,t))}s[p].crossVectors(r[p],i[p])}if(!0===e){let e=Math.acos(Fn.clamp(i[0].dot(i[t]),-1,1));e/=t,r[0].dot(o.crossVectors(i[0],i[t]))>0&&(e=-e);for(let n=1;n<=t;n++)i[n].applyMatrix4(a.makeRotationAxis(r[n],e*n)),s[n].crossVectors(r[n],i[n])}return{tangents:r,normals:i,binormals:s}},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this},toJSON:function(){const t={metadata:{version:4.5,type:"Curve",generator:"Curve.toJSON"}};return t.arcLengthDivisions=this.arcLengthDivisions,t.type=this.type,t},fromJSON:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}});class _d extends yd{constructor(t=0,e=0,n=1,r=1,i=0,s=2*Math.PI,o=!1,a=0){super(),this.type="EllipseCurve",this.aX=t,this.aY=e,this.xRadius=n,this.yRadius=r,this.aStartAngle=i,this.aEndAngle=s,this.aClockwise=o,this.aRotation=a}getPoint(t,e){const n=e||new On,r=2*Math.PI;let i=this.aEndAngle-this.aStartAngle;const s=Math.abs(i)<Number.EPSILON;for(;i<0;)i+=r;for(;i>r;)i-=r;i<Number.EPSILON&&(i=s?0:r),!0!==this.aClockwise||s||(i===r?i=-r:i-=r);const o=this.aStartAngle+t*i;let a=this.aX+this.xRadius*Math.cos(o),l=this.aY+this.yRadius*Math.sin(o);if(0!==this.aRotation){const t=Math.cos(this.aRotation),e=Math.sin(this.aRotation),n=a-this.aX,r=l-this.aY;a=n*t-r*e+this.aX,l=n*e+r*t+this.aY}return n.set(a,l)}copy(t){return super.copy(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}toJSON(){const t=super.toJSON();return t.aX=this.aX,t.aY=this.aY,t.xRadius=this.xRadius,t.yRadius=this.yRadius,t.aStartAngle=this.aStartAngle,t.aEndAngle=this.aEndAngle,t.aClockwise=this.aClockwise,t.aRotation=this.aRotation,t}fromJSON(t){return super.fromJSON(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}}exports.EllipseCurve=_d,_d.prototype.isEllipseCurve=!0;class bd extends _d{constructor(t,e,n,r,i,s){super(t,e,n,n,r,i,s),this.type="ArcCurve"}}function wd(){let t=0,e=0,n=0,r=0;function i(i,s,o,a){t=i,e=o,n=-3*i+3*s-2*o-a,r=2*i-2*s+o+a}return{initCatmullRom:function(t,e,n,r,s){i(e,n,s*(n-t),s*(r-e))},initNonuniformCatmullRom:function(t,e,n,r,s,o,a){let l=(e-t)/s-(n-t)/(s+o)+(n-e)/o,c=(n-e)/o-(r-e)/(o+a)+(r-n)/a;i(e,n,l*=o,c*=o)},calc:function(i){const s=i*i;return t+e*i+n*s+r*(s*i)}}}exports.ArcCurve=bd,bd.prototype.isArcCurve=!0;const Md=new Yn,Sd=new wd,Td=new wd,Ed=new wd;class Ad extends yd{constructor(t=[],e=!1,n="centripetal",r=.5){super(),this.type="CatmullRomCurve3",this.points=t,this.closed=e,this.curveType=n,this.tension=r}getPoint(t,e=new Yn){const n=e,r=this.points,i=r.length,s=(i-(this.closed?0:1))*t;let o,a,l=Math.floor(s),c=s-l;this.closed?l+=l>0?0:(Math.floor(Math.abs(l)/i)+1)*i:0===c&&l===i-1&&(l=i-2,c=1),this.closed||l>0?o=r[(l-1)%i]:(Md.subVectors(r[0],r[1]).add(r[0]),o=Md);const h=r[l%i],u=r[(l+1)%i];if(this.closed||l+2<i?a=r[(l+2)%i]:(Md.subVectors(r[i-1],r[i-2]).add(r[i-1]),a=Md),"centripetal"===this.curveType||"chordal"===this.curveType){const t="chordal"===this.curveType?.5:.25;let e=Math.pow(o.distanceToSquared(h),t),n=Math.pow(h.distanceToSquared(u),t),r=Math.pow(u.distanceToSquared(a),t);n<1e-4&&(n=1),e<1e-4&&(e=n),r<1e-4&&(r=n),Sd.initNonuniformCatmullRom(o.x,h.x,u.x,a.x,e,n,r),Td.initNonuniformCatmullRom(o.y,h.y,u.y,a.y,e,n,r),Ed.initNonuniformCatmullRom(o.z,h.z,u.z,a.z,e,n,r)}else"catmullrom"===this.curveType&&(Sd.initCatmullRom(o.x,h.x,u.x,a.x,this.tension),Td.initCatmullRom(o.y,h.y,u.y,a.y,this.tension),Ed.initCatmullRom(o.z,h.z,u.z,a.z,this.tension));return n.set(Sd.calc(c),Td.calc(c),Ed.calc(c)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t.closed=this.closed,t.curveType=this.curveType,t.tension=this.tension,t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new Yn).fromArray(n))}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}}function Ld(t,e,n,r,i){const s=.5*(r-e),o=.5*(i-n),a=t*t;return(2*n-2*r+s+o)*(t*a)+(-3*n+3*r-2*s-o)*a+s*t+n}function Rd(t,e){const n=1-t;return n*n*e}function Cd(t,e){return 2*(1-t)*t*e}function Pd(t,e){return t*t*e}function Dd(t,e,n,r){return Rd(t,e)+Cd(t,n)+Pd(t,r)}function Id(t,e){const n=1-t;return n*n*n*e}function Bd(t,e){const n=1-t;return 3*n*n*t*e}function Nd(t,e){return 3*(1-t)*t*t*e}function Fd(t,e){return t*t*t*e}function Od(t,e,n,r,i){return Id(t,e)+Bd(t,n)+Nd(t,r)+Fd(t,i)}exports.CatmullRomCurve3=Ad,Ad.prototype.isCatmullRomCurve3=!0;class zd extends yd{constructor(t=new On,e=new On,n=new On,r=new On){super(),this.type="CubicBezierCurve",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve=zd,zd.prototype.isCubicBezierCurve=!0;class Gd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn,r=new Yn){super(),this.type="CubicBezierCurve3",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y),Od(t,r.z,i.z,s.z,o.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve3=Gd,Gd.prototype.isCubicBezierCurve3=!0;class Hd extends yd{constructor(t=new On,e=new On){super(),this.type="LineCurve",this.v1=t,this.v2=e}getPoint(t,e=new On){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e){const n=e||new On;return n.copy(this.v2).sub(this.v1).normalize(),n}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve=Hd,Hd.prototype.isLineCurve=!0;class Ud extends yd{constructor(t=new Yn,e=new Yn){super(),this.type="LineCurve3",this.isLineCurve3=!0,this.v1=t,this.v2=e}getPoint(t,e=new Yn){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve3=Ud;class kd extends yd{constructor(t=new On,e=new On,n=new On){super(),this.type="QuadraticBezierCurve",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve=kd,kd.prototype.isQuadraticBezierCurve=!0;class Vd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn){super(),this.type="QuadraticBezierCurve3",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y),Dd(t,r.z,i.z,s.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve3=Vd,Vd.prototype.isQuadraticBezierCurve3=!0;class Wd extends yd{constructor(t=[]){super(),this.type="SplineCurve",this.points=t}getPoint(t,e=new On){const n=e,r=this.points,i=(r.length-1)*t,s=Math.floor(i),o=i-s,a=r[0===s?s:s-1],l=r[s],c=r[s>r.length-2?r.length-1:s+1],h=r[s>r.length-3?r.length-1:s+2];return n.set(Ld(o,a.x,l.x,c.x,h.x),Ld(o,a.y,l.y,c.y,h.y)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new On).fromArray(n))}return this}}exports.SplineCurve=Wd,Wd.prototype.isSplineCurve=!0;var jd=Object.freeze({__proto__:null,ArcCurve:bd,CatmullRomCurve3:Ad,CubicBezierCurve:zd,CubicBezierCurve3:Gd,EllipseCurve:_d,LineCurve:Hd,LineCurve3:Ud,QuadraticBezierCurve:kd,QuadraticBezierCurve3:Vd,SplineCurve:Wd});class qd extends yd{constructor(){super(),this.type="CurvePath",this.curves=[],this.autoClose=!1}add(t){this.curves.push(t)}closePath(){const t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);t.equals(e)||this.curves.push(new Hd(e,t))}getPoint(t){const e=t*this.getLength(),n=this.getCurveLengths();let r=0;for(;r<n.length;){if(n[r]>=e){const t=n[r]-e,i=this.curves[r],s=i.getLength(),o=0===s?0:1-t/s;return i.getPointAt(o)}r++}return null}getLength(){const t=this.getCurveLengths();return t[t.length-1]}updateArcLengths(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()}getCurveLengths(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;const t=[];let e=0;for(let n=0,r=this.curves.length;n<r;n++)e+=this.curves[n].getLength(),t.push(e);return this.cacheLengths=t,t}getSpacedPoints(t=40){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return this.autoClose&&e.push(e[0]),e}getPoints(t=12){const e=[];let n;for(let r=0,i=this.curves;r<i.length;r++){const s=i[r],o=s&&s.isEllipseCurve?2*t:s&&(s.isLineCurve||s.isLineCurve3)?1:s&&s.isSplineCurve?t*s.points.length:t,a=s.getPoints(o);for(let t=0;t<a.length;t++){const r=a[t];n&&n.equals(r)||(e.push(r),n=r)}}return this.autoClose&&e.length>1&&!e[e.length-1].equals(e[0])&&e.push(e[0]),e}copy(t){super.copy(t),this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push(n.clone())}return this.autoClose=t.autoClose,this}toJSON(){const t=super.toJSON();t.autoClose=this.autoClose,t.curves=[];for(let e=0,n=this.curves.length;e<n;e++){const n=this.curves[e];t.curves.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.autoClose=t.autoClose,this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push((new jd[n.type]).fromJSON(n))}return this}}exports.CurvePath=qd;class Xd extends qd{constructor(t){super(),this.type="Path",this.currentPoint=new On,t&&this.setFromPoints(t)}setFromPoints(t){this.moveTo(t[0].x,t[0].y);for(let e=1,n=t.length;e<n;e++)this.lineTo(t[e].x,t[e].y);return this}moveTo(t,e){return this.currentPoint.set(t,e),this}lineTo(t,e){const n=new Hd(this.currentPoint.clone(),new On(t,e));return this.curves.push(n),this.currentPoint.set(t,e),this}quadraticCurveTo(t,e,n,r){const i=new kd(this.currentPoint.clone(),new On(t,e),new On(n,r));return this.curves.push(i),this.currentPoint.set(n,r),this}bezierCurveTo(t,e,n,r,i,s){const o=new zd(this.currentPoint.clone(),new On(t,e),new On(n,r),new On(i,s));return this.curves.push(o),this.currentPoint.set(i,s),this}splineThru(t){const e=[this.currentPoint.clone()].concat(t),n=new Wd(e);return this.curves.push(n),this.currentPoint.copy(t[t.length-1]),this}arc(t,e,n,r,i,s){const o=this.currentPoint.x,a=this.currentPoint.y;return this.absarc(t+o,e+a,n,r,i,s),this}absarc(t,e,n,r,i,s){return this.absellipse(t,e,n,n,r,i,s),this}ellipse(t,e,n,r,i,s,o,a){const l=this.currentPoint.x,c=this.currentPoint.y;return this.absellipse(t+l,e+c,n,r,i,s,o,a),this}absellipse(t,e,n,r,i,s,o,a){const l=new _d(t,e,n,r,i,s,o,a);if(this.curves.length>0){const t=l.getPoint(0);t.equals(this.currentPoint)||this.lineTo(t.x,t.y)}this.curves.push(l);const c=l.getPoint(1);return this.currentPoint.copy(c),this}copy(t){return super.copy(t),this.currentPoint.copy(t.currentPoint),this}toJSON(){const t=super.toJSON();return t.currentPoint=this.currentPoint.toArray(),t}fromJSON(t){return super.fromJSON(t),this.currentPoint.fromArray(t.currentPoint),this}}exports.Path=Xd;class Yd extends Xd{constructor(t){super(t),this.uuid=Fn.generateUUID(),this.type="Shape",this.holes=[]}getPointsHoles(t){const e=[];for(let n=0,r=this.holes.length;n<r;n++)e[n]=this.holes[n].getPoints(t);return e}extractPoints(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}}copy(t){super.copy(t),this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.uuid=this.uuid,t.holes=[];for(let e=0,n=this.holes.length;e<n;e++){const n=this.holes[e];t.holes.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.uuid=t.uuid,this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push((new Xd).fromJSON(n))}return this}}exports.Shape=Yd;class Zd extends Xr{constructor(t,e=1){super(),this.type="Light",this.color=new xi(t),this.intensity=e}copy(t){return super.copy(t),this.color.copy(t.color),this.intensity=t.intensity,this}toJSON(t){const e=super.toJSON(t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}exports.Light=Zd,Zd.prototype.isLight=!0;class Jd extends Zd{constructor(t,e,n){super(t,n),this.type="HemisphereLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.groundColor=new xi(e)}copy(t){return Zd.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}exports.HemisphereLight=Jd,Jd.prototype.isHemisphereLight=!0;const Qd=new wr,Kd=new Yn,$d=new Yn;class tm{constructor(t){this.camera=t,this.bias=0,this.normalBias=0,this.radius=1,this.mapSize=new On(512,512),this.map=null,this.mapPass=null,this.matrix=new wr,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new Es,this._frameExtents=new On(1,1),this._viewportCount=1,this._viewports=[new Wn(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,n=this.matrix;Kd.setFromMatrixPosition(t.matrixWorld),e.position.copy(Kd),$d.setFromMatrixPosition(t.target.matrixWorld),e.lookAt($d),e.updateMatrixWorld(),Qd.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Qd),n.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),n.multiply(e.projectionMatrix),n.multiply(e.matrixWorldInverse)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}copy(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class em extends tm{constructor(){super(new xs(50,1,.5,500)),this.focus=1}updateMatrices(t){const e=this.camera,n=2*Fn.RAD2DEG*t.angle*this.focus,r=this.mapSize.width/this.mapSize.height,i=t.distance||e.far;n===e.fov&&r===e.aspect&&i===e.far||(e.fov=n,e.aspect=r,e.far=i,e.updateProjectionMatrix()),super.updateMatrices(t)}}em.prototype.isSpotLightShadow=!0;class nm extends Zd{constructor(t,e,n=0,r=Math.PI/3,i=0,s=1){super(t,e),this.type="SpotLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.distance=n,this.angle=r,this.penumbra=i,this.decay=s,this.shadow=new em}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}copy(t){return super.copy(t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.SpotLight=nm,nm.prototype.isSpotLight=!0;const rm=new wr,im=new Yn,sm=new Yn;class om extends tm{constructor(){super(new xs(90,1,.5,500)),this._frameExtents=new On(4,2),this._viewportCount=6,this._viewports=[new Wn(2,1,1,1),new Wn(0,1,1,1),new Wn(3,1,1,1),new Wn(1,1,1,1),new Wn(3,0,1,1),new Wn(1,0,1,1)],this._cubeDirections=[new Yn(1,0,0),new Yn(-1,0,0),new Yn(0,0,1),new Yn(0,0,-1),new Yn(0,1,0),new Yn(0,-1,0)],this._cubeUps=[new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,0,1),new Yn(0,0,-1)]}updateMatrices(t,e=0){const n=this.camera,r=this.matrix;im.setFromMatrixPosition(t.matrixWorld),n.position.copy(im),sm.copy(n.position),sm.add(this._cubeDirections[e]),n.up.copy(this._cubeUps[e]),n.lookAt(sm),n.updateMatrixWorld(),r.makeTranslation(-im.x,-im.y,-im.z),rm.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),this._frustum.setFromProjectionMatrix(rm)}}om.prototype.isPointLightShadow=!0;class am extends Zd{constructor(t,e,n=0,r=1){super(t,e),this.type="PointLight",this.distance=n,this.decay=r,this.shadow=new om}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}copy(t){return super.copy(t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}exports.PointLight=am,am.prototype.isPointLight=!0;class lm extends gs{constructor(t=-1,e=1,n=1,r=-1,i=.1,s=2e3){super(),this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=n,this.bottom=r,this.near=i,this.far=s,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,n,r,i,s){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,r=(this.top+this.bottom)/2;let i=n-t,s=n+t,o=r+e,a=r-e;if(null!==this.view&&this.view.enabled){const t=(this.right-this.left)/this.view.fullWidth/this.zoom,e=(this.top-this.bottom)/this.view.fullHeight/this.zoom;s=(i+=t*this.view.offsetX)+t*this.view.width,a=(o-=e*this.view.offsetY)-e*this.view.height}this.projectionMatrix.makeOrthographic(i,s,o,a,this.near,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}exports.OrthographicCamera=lm,lm.prototype.isOrthographicCamera=!0;class cm extends tm{constructor(){super(new lm(-5,5,5,-5,.5,500))}}cm.prototype.isDirectionalLightShadow=!0;class hm extends Zd{constructor(t,e){super(t,e),this.type="DirectionalLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.shadow=new cm}copy(t){return super.copy(t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.DirectionalLight=hm,hm.prototype.isDirectionalLight=!0;class um extends Zd{constructor(t,e){super(t,e),this.type="AmbientLight"}}exports.AmbientLight=um,um.prototype.isAmbientLight=!0;class pm extends Zd{constructor(t,e,n=10,r=10){super(t,e),this.type="RectAreaLight",this.width=n,this.height=r}copy(t){return super.copy(t),this.width=t.width,this.height=t.height,this}toJSON(t){const e=super.toJSON(t);return e.object.width=this.width,e.object.height=this.height,e}}exports.RectAreaLight=pm,pm.prototype.isRectAreaLight=!0;class dm{constructor(){this.coefficients=[];for(let t=0;t<9;t++)this.coefficients.push(new Yn)}set(t){for(let e=0;e<9;e++)this.coefficients[e].copy(t[e]);return this}zero(){for(let t=0;t<9;t++)this.coefficients[t].set(0,0,0);return this}getAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.282095),e.addScaledVector(s[1],.488603*r),e.addScaledVector(s[2],.488603*i),e.addScaledVector(s[3],.488603*n),e.addScaledVector(s[4],n*r*1.092548),e.addScaledVector(s[5],r*i*1.092548),e.addScaledVector(s[6],.315392*(3*i*i-1)),e.addScaledVector(s[7],n*i*1.092548),e.addScaledVector(s[8],.546274*(n*n-r*r)),e}getIrradianceAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.886227),e.addScaledVector(s[1],1.023328*r),e.addScaledVector(s[2],1.023328*i),e.addScaledVector(s[3],1.023328*n),e.addScaledVector(s[4],.858086*n*r),e.addScaledVector(s[5],.858086*r*i),e.addScaledVector(s[6],.743125*i*i-.247708),e.addScaledVector(s[7],.858086*n*i),e.addScaledVector(s[8],.429043*(n*n-r*r)),e}add(t){for(let e=0;e<9;e++)this.coefficients[e].add(t.coefficients[e]);return this}addScaledSH(t,e){for(let n=0;n<9;n++)this.coefficients[n].addScaledVector(t.coefficients[n],e);return this}scale(t){for(let e=0;e<9;e++)this.coefficients[e].multiplyScalar(t);return this}lerp(t,e){for(let n=0;n<9;n++)this.coefficients[n].lerp(t.coefficients[n],e);return this}equals(t){for(let e=0;e<9;e++)if(!this.coefficients[e].equals(t.coefficients[e]))return!1;return!0}copy(t){return this.set(t.coefficients)}clone(){return(new this.constructor).copy(this)}fromArray(t,e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].fromArray(t,e+3*r);return this}toArray(t=[],e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].toArray(t,e+3*r);return t}static getBasisAt(t,e){const n=t.x,r=t.y,i=t.z;e[0]=.282095,e[1]=.488603*r,e[2]=.488603*i,e[3]=.488603*n,e[4]=1.092548*n*r,e[5]=1.092548*r*i,e[6]=.315392*(3*i*i-1),e[7]=1.092548*n*i,e[8]=.546274*(n*n-r*r)}}exports.SphericalHarmonics3=dm,dm.prototype.isSphericalHarmonics3=!0;class mm extends Zd{constructor(t=new dm,e=1){super(void 0,e),this.sh=t}copy(t){return super.copy(t),this.sh.copy(t.sh),this}fromJSON(t){return this.intensity=t.intensity,this.sh.fromArray(t.sh),this}toJSON(t){const e=super.toJSON(t);return e.object.sh=this.sh.toArray(),e}}exports.LightProbe=mm,mm.prototype.isLightProbe=!0;class fm extends hd{constructor(t){super(t),this.textures={}}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=this.textures;function n(t){return void 0===e[t]&&console.warn("THREE.MaterialLoader: Undefined texture",t),e[t]}const r=new Wp[t.type];if(void 0!==t.uuid&&(r.uuid=t.uuid),void 0!==t.name&&(r.name=t.name),void 0!==t.color&&void 0!==r.color&&r.color.setHex(t.color),void 0!==t.roughness&&(r.roughness=t.roughness),void 0!==t.metalness&&(r.metalness=t.metalness),void 0!==t.sheen&&(r.sheen=(new xi).setHex(t.sheen)),void 0!==t.emissive&&void 0!==r.emissive&&r.emissive.setHex(t.emissive),void 0!==t.specular&&void 0!==r.specular&&r.specular.setHex(t.specular),void 0!==t.shininess&&(r.shininess=t.shininess),void 0!==t.clearcoat&&(r.clearcoat=t.clearcoat),void 0!==t.clearcoatRoughness&&(r.clearcoatRoughness=t.clearcoatRoughness),void 0!==t.fog&&(r.fog=t.fog),void 0!==t.flatShading&&(r.flatShading=t.flatShading),void 0!==t.blending&&(r.blending=t.blending),void 0!==t.combine&&(r.combine=t.combine),void 0!==t.side&&(r.side=t.side),void 0!==t.opacity&&(r.opacity=t.opacity),void 0!==t.transparent&&(r.transparent=t.transparent),void 0!==t.alphaTest&&(r.alphaTest=t.alphaTest),void 0!==t.depthTest&&(r.depthTest=t.depthTest),void 0!==t.depthWrite&&(r.depthWrite=t.depthWrite),void 0!==t.colorWrite&&(r.colorWrite=t.colorWrite),void 0!==t.stencilWrite&&(r.stencilWrite=t.stencilWrite),void 0!==t.stencilWriteMask&&(r.stencilWriteMask=t.stencilWriteMask),void 0!==t.stencilFunc&&(r.stencilFunc=t.stencilFunc),void 0!==t.stencilRef&&(r.stencilRef=t.stencilRef),void 0!==t.stencilFuncMask&&(r.stencilFuncMask=t.stencilFuncMask),void 0!==t.stencilFail&&(r.stencilFail=t.stencilFail),void 0!==t.stencilZFail&&(r.stencilZFail=t.stencilZFail),void 0!==t.stencilZPass&&(r.stencilZPass=t.stencilZPass),void 0!==t.wireframe&&(r.wireframe=t.wireframe),void 0!==t.wireframeLinewidth&&(r.wireframeLinewidth=t.wireframeLinewidth),void 0!==t.wireframeLinecap&&(r.wireframeLinecap=t.wireframeLinecap),void 0!==t.wireframeLinejoin&&(r.wireframeLinejoin=t.wireframeLinejoin),void 0!==t.rotation&&(r.rotation=t.rotation),1!==t.linewidth&&(r.linewidth=t.linewidth),void 0!==t.dashSize&&(r.dashSize=t.dashSize),void 0!==t.gapSize&&(r.gapSize=t.gapSize),void 0!==t.scale&&(r.scale=t.scale),void 0!==t.polygonOffset&&(r.polygonOffset=t.polygonOffset),void 0!==t.polygonOffsetFactor&&(r.polygonOffsetFactor=t.polygonOffsetFactor),void 0!==t.polygonOffsetUnits&&(r.polygonOffsetUnits=t.polygonOffsetUnits),void 0!==t.skinning&&(r.skinning=t.skinning),void 0!==t.morphTargets&&(r.morphTargets=t.morphTargets),void 0!==t.morphNormals&&(r.morphNormals=t.morphNormals),void 0!==t.dithering&&(r.dithering=t.dithering),void 0!==t.vertexTangents&&(r.vertexTangents=t.vertexTangents),void 0!==t.visible&&(r.visible=t.visible),void 0!==t.toneMapped&&(r.toneMapped=t.toneMapped),void 0!==t.userData&&(r.userData=t.userData),void 0!==t.vertexColors&&("number"==typeof t.vertexColors?r.vertexColors=t.vertexColors>0:r.vertexColors=t.vertexColors),void 0!==t.uniforms)for(const i in t.uniforms){const e=t.uniforms[i];switch(r.uniforms[i]={},e.type){case"t":r.uniforms[i].value=n(e.value);break;case"c":r.uniforms[i].value=(new xi).setHex(e.value);break;case"v2":r.uniforms[i].value=(new On).fromArray(e.value);break;case"v3":r.uniforms[i].value=(new Yn).fromArray(e.value);break;case"v4":r.uniforms[i].value=(new Wn).fromArray(e.value);break;case"m3":r.uniforms[i].value=(new zn).fromArray(e.value);break;case"m4":r.uniforms[i].value=(new wr).fromArray(e.value);break;default:r.uniforms[i].value=e.value}}if(void 0!==t.defines&&(r.defines=t.defines),void 0!==t.vertexShader&&(r.vertexShader=t.vertexShader),void 0!==t.fragmentShader&&(r.fragmentShader=t.fragmentShader),void 0!==t.extensions)for(const i in t.extensions)r.extensions[i]=t.extensions[i];if(void 0!==t.shading&&(r.flatShading=1===t.shading),void 0!==t.size&&(r.size=t.size),void 0!==t.sizeAttenuation&&(r.sizeAttenuation=t.sizeAttenuation),void 0!==t.map&&(r.map=n(t.map)),void 0!==t.matcap&&(r.matcap=n(t.matcap)),void 0!==t.alphaMap&&(r.alphaMap=n(t.alphaMap)),void 0!==t.bumpMap&&(r.bumpMap=n(t.bumpMap)),void 0!==t.bumpScale&&(r.bumpScale=t.bumpScale),void 0!==t.normalMap&&(r.normalMap=n(t.normalMap)),void 0!==t.normalMapType&&(r.normalMapType=t.normalMapType),void 0!==t.normalScale){let e=t.normalScale;!1===Array.isArray(e)&&(e=[e,e]),r.normalScale=(new On).fromArray(e)}return void 0!==t.displacementMap&&(r.displacementMap=n(t.displacementMap)),void 0!==t.displacementScale&&(r.displacementScale=t.displacementScale),void 0!==t.displacementBias&&(r.displacementBias=t.displacementBias),void 0!==t.roughnessMap&&(r.roughnessMap=n(t.roughnessMap)),void 0!==t.metalnessMap&&(r.metalnessMap=n(t.metalnessMap)),void 0!==t.emissiveMap&&(r.emissiveMap=n(t.emissiveMap)),void 0!==t.emissiveIntensity&&(r.emissiveIntensity=t.emissiveIntensity),void 0!==t.specularMap&&(r.specularMap=n(t.specularMap)),void 0!==t.envMap&&(r.envMap=n(t.envMap)),void 0!==t.envMapIntensity&&(r.envMapIntensity=t.envMapIntensity),void 0!==t.reflectivity&&(r.reflectivity=t.reflectivity),void 0!==t.refractionRatio&&(r.refractionRatio=t.refractionRatio),void 0!==t.lightMap&&(r.lightMap=n(t.lightMap)),void 0!==t.lightMapIntensity&&(r.lightMapIntensity=t.lightMapIntensity),void 0!==t.aoMap&&(r.aoMap=n(t.aoMap)),void 0!==t.aoMapIntensity&&(r.aoMapIntensity=t.aoMapIntensity),void 0!==t.gradientMap&&(r.gradientMap=n(t.gradientMap)),void 0!==t.clearcoatMap&&(r.clearcoatMap=n(t.clearcoatMap)),void 0!==t.clearcoatRoughnessMap&&(r.clearcoatRoughnessMap=n(t.clearcoatRoughnessMap)),void 0!==t.clearcoatNormalMap&&(r.clearcoatNormalMap=n(t.clearcoatNormalMap)),void 0!==t.clearcoatNormalScale&&(r.clearcoatNormalScale=(new On).fromArray(t.clearcoatNormalScale)),void 0!==t.transmission&&(r.transmission=t.transmission),void 0!==t.transmissionMap&&(r.transmissionMap=n(t.transmissionMap)),r}setTextures(t){return this.textures=t,this}}exports.MaterialLoader=fm;const gm={decodeText:function(t){if("undefined"!=typeof TextDecoder)return(new TextDecoder).decode(t);let e="";for(let r=0,i=t.length;r<i;r++)e+=String.fromCharCode(t[r]);try{return decodeURIComponent(escape(e))}catch(n){return e}},extractUrlBase:function(t){const e=t.lastIndexOf("/");return-1===e?"./":t.substr(0,e+1)}};function xm(){ki.call(this),this.type="InstancedBufferGeometry",this.instanceCount=1/0}function vm(t,e,n,r){"number"==typeof n&&(r=n,n=!1,console.error("THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.")),bi.call(this,t,e,n),this.meshPerAttribute=r||1}exports.LoaderUtils=gm,xm.prototype=Object.assign(Object.create(ki.prototype),{constructor:xm,isInstancedBufferGeometry:!0,copy:function(t){return ki.prototype.copy.call(this,t),this.instanceCount=t.instanceCount,this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){const t=ki.prototype.toJSON.call(this);return t.instanceCount=this.instanceCount,t.isInstancedBufferGeometry=!0,t}}),vm.prototype=Object.assign(Object.create(bi.prototype),{constructor:vm,isInstancedBufferAttribute:!0,copy:function(t){return bi.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},toJSON:function(){const t=bi.prototype.toJSON.call(this);return t.meshPerAttribute=this.meshPerAttribute,t.isInstancedBufferAttribute=!0,t}});class ym extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e={},n={};function r(t,r){if(void 0!==e[r])return e[r];const i=t.interleavedBuffers[r],s=function(t,e){if(void 0!==n[e])return n[e];const r=t.arrayBuffers[e],i=new Uint32Array(r).buffer;return n[e]=i,i}(t,i.buffer),o=new _h(Bi(i.type,s),i.stride);return o.uuid=i.uuid,e[r]=o,o}const i=t.isInstancedBufferGeometry?new xm:new ki,s=t.data.index;if(void 0!==s){const t=Bi(s.type,s.array);i.setIndex(new bi(t,1))}const o=t.data.attributes;for(const h in o){const e=o[h];let n;if(e.isInterleavedBufferAttribute){n=new wh(r(t.data,e.data),e.itemSize,e.offset,e.normalized)}else{const t=Bi(e.type,e.array);n=new(e.isInstancedBufferAttribute?vm:bi)(t,e.itemSize,e.normalized)}void 0!==e.name&&(n.name=e.name),i.setAttribute(h,n)}const a=t.data.morphAttributes;if(a)for(const h in a){const e=a[h],n=[];for(let i=0,s=e.length;i<s;i++){const s=e[i];let o;if(s.isInterleavedBufferAttribute){o=new wh(r(t.data,s.data),s.itemSize,s.offset,s.normalized)}else{o=new bi(Bi(s.type,s.array),s.itemSize,s.normalized)}void 0!==s.name&&(o.name=s.name),n.push(o)}i.morphAttributes[h]=n}t.data.morphTargetsRelative&&(i.morphTargetsRelative=!0);const l=t.data.groups||t.data.drawcalls||t.data.offsets;if(void 0!==l)for(let h=0,u=l.length;h!==u;++h){const t=l[h];i.addGroup(t.start,t.count,t.materialIndex)}const c=t.data.boundingSphere;if(void 0!==c){const t=new Yn;void 0!==c.center&&t.fromArray(c.center),i.boundingSphere=new dr(t,c.radius)}return t.name&&(i.name=t.name),t.userData&&(i.userData=t.userData),i}}exports.BufferGeometryLoader=ym;class _m extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=""===this.path?gm.extractUrlBase(t):this.path;this.resourcePath=this.resourcePath||s;const o=new pd(this.manager);o.setPath(this.path),o.setRequestHeader(this.requestHeader),o.setWithCredentials(this.withCredentials),o.load(t,function(n){let s=null;try{s=JSON.parse(n)}catch(a){return void 0!==r&&r(a),void console.error("THREE:ObjectLoader: Can't parse "+t+".",a.message)}const o=s.metadata;void 0!==o&&void 0!==o.type&&"geometry"!==o.type.toLowerCase()?i.parse(s,e):console.error("THREE.ObjectLoader: Can't load "+t)},n,r)}parse(t,e){const n=this.parseAnimations(t.animations),r=this.parseShapes(t.shapes),i=this.parseGeometries(t.geometries,r),s=this.parseImages(t.images,function(){void 0!==e&&e(l)}),o=this.parseTextures(t.textures,s),a=this.parseMaterials(t.materials,o),l=this.parseObject(t.object,i,a,n),c=this.parseSkeletons(t.skeletons,l);if(this.bindSkeletons(l,c),void 0!==e){let t=!1;for(const e in s)if(s[e]instanceof HTMLImageElement){t=!0;break}!1===t&&e(l)}return l}parseShapes(t){const e={};if(void 0!==t)for(let n=0,r=t.length;n<r;n++){const r=(new Yd).fromJSON(t[n]);e[r.uuid]=r}return e}parseSkeletons(t,e){const n={},r={};if(e.traverse(function(t){t.isBone&&(r[t.uuid]=t)}),void 0!==t)for(let i=0,s=t.length;i<s;i++){const e=(new Qh).fromJSON(t[i],r);n[e.uuid]=e}return n}parseGeometries(t,e){const n={};let r;if(void 0!==t){const i=new ym;for(let s=0,o=t.length;s<o;s++){let o;const a=t[s];switch(a.type){case"PlaneGeometry":case"PlaneBufferGeometry":o=new Ip[a.type](a.width,a.height,a.widthSegments,a.heightSegments);break;case"BoxGeometry":case"BoxBufferGeometry":o=new Ip[a.type](a.width,a.height,a.depth,a.widthSegments,a.heightSegments,a.depthSegments);break;case"CircleGeometry":case"CircleBufferGeometry":o=new Ip[a.type](a.radius,a.segments,a.thetaStart,a.thetaLength);break;case"CylinderGeometry":case"CylinderBufferGeometry":o=new Ip[a.type](a.radiusTop,a.radiusBottom,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"ConeGeometry":case"ConeBufferGeometry":o=new Ip[a.type](a.radius,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"SphereGeometry":case"SphereBufferGeometry":o=new Ip[a.type](a.radius,a.widthSegments,a.heightSegments,a.phiStart,a.phiLength,a.thetaStart,a.thetaLength);break;case"DodecahedronGeometry":case"DodecahedronBufferGeometry":case"IcosahedronGeometry":case"IcosahedronBufferGeometry":case"OctahedronGeometry":case"OctahedronBufferGeometry":case"TetrahedronGeometry":case"TetrahedronBufferGeometry":o=new Ip[a.type](a.radius,a.detail);break;case"RingGeometry":case"RingBufferGeometry":o=new Ip[a.type](a.innerRadius,a.outerRadius,a.thetaSegments,a.phiSegments,a.thetaStart,a.thetaLength);break;case"TorusGeometry":case"TorusBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.radialSegments,a.tubularSegments,a.arc);break;case"TorusKnotGeometry":case"TorusKnotBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.tubularSegments,a.radialSegments,a.p,a.q);break;case"TubeGeometry":case"TubeBufferGeometry":o=new Ip[a.type]((new jd[a.path.type]).fromJSON(a.path),a.tubularSegments,a.radius,a.radialSegments,a.closed);break;case"LatheGeometry":case"LatheBufferGeometry":o=new Ip[a.type](a.points,a.segments,a.phiStart,a.phiLength);break;case"PolyhedronGeometry":case"PolyhedronBufferGeometry":o=new Ip[a.type](a.vertices,a.indices,a.radius,a.details);break;case"ShapeGeometry":case"ShapeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}o=new Ip[a.type](r,a.curveSegments);break;case"ExtrudeGeometry":case"ExtrudeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}const t=a.options.extrudePath;void 0!==t&&(a.options.extrudePath=(new jd[t.type]).fromJSON(t)),o=new Ip[a.type](r,a.options);break;case"BufferGeometry":case"InstancedBufferGeometry":o=i.parse(a);break;case"Geometry":console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type "'+a.type+'"');continue}o.uuid=a.uuid,void 0!==a.name&&(o.name=a.name),!0===o.isBufferGeometry&&void 0!==a.userData&&(o.userData=a.userData),n[a.uuid]=o}}return n}parseMaterials(t,e){const n={},r={};if(void 0!==t){const i=new fm;i.setTextures(e);for(let e=0,s=t.length;e<s;e++){const s=t[e];if("MultiMaterial"===s.type){const t=[];for(let e=0;e<s.materials.length;e++){const r=s.materials[e];void 0===n[r.uuid]&&(n[r.uuid]=i.parse(r)),t.push(n[r.uuid])}r[s.uuid]=t}else void 0===n[s.uuid]&&(n[s.uuid]=i.parse(s)),r[s.uuid]=n[s.uuid]}}return r}parseAnimations(t){const e={};if(void 0!==t)for(let n=0;n<t.length;n++){const r=t[n],i=id.parse(r);e[i.uuid]=i}return e}parseImages(t,e){const n=this,r={};let i;function s(t){if("string"==typeof t){const e=t;return function(t){return n.manager.itemStart(t),i.load(t,function(){n.manager.itemEnd(t)},void 0,function(){n.manager.itemError(t),n.manager.itemEnd(t)})}(/^(\/\/)|([a-z]+:(\/\/)?)/i.test(e)?e:n.resourcePath+e)}return t.data?{data:Bi(t.type,t.data),width:t.width,height:t.height}:null}if(void 0!==t&&t.length>0){const n=new ld(e);(i=new fd(n)).setCrossOrigin(this.crossOrigin);for(let e=0,i=t.length;e<i;e++){const n=t[e],i=n.url;if(Array.isArray(i)){r[n.uuid]=[];for(let t=0,e=i.length;t<e;t++){const e=s(i[t]);null!==e&&(e instanceof HTMLImageElement?r[n.uuid].push(e):r[n.uuid].push(new Ms(e.data,e.width,e.height)))}}else{const t=s(n.url);null!==t&&(r[n.uuid]=t)}}}return r}parseTextures(t,e){function n(t,e){return"number"==typeof t?t:(console.warn("THREE.ObjectLoader.parseTexture: Constant should be in numeric form.",t),e[t])}const r={};if(void 0!==t)for(let i=0,s=t.length;i<s;i++){const s=t[i];let o;void 0===s.image&&console.warn('THREE.ObjectLoader: No "image" specified for',s.uuid),void 0===e[s.image]&&console.warn("THREE.ObjectLoader: Undefined image",s.image);const a=e[s.image];Array.isArray(a)?(o=new bs(a),6===a.length&&(o.needsUpdate=!0)):(o=a&&a.data?new Ms(a.data,a.width,a.height):new kn(a),a&&(o.needsUpdate=!0)),o.uuid=s.uuid,void 0!==s.name&&(o.name=s.name),void 0!==s.mapping&&(o.mapping=n(s.mapping,bm)),void 0!==s.offset&&o.offset.fromArray(s.offset),void 0!==s.repeat&&o.repeat.fromArray(s.repeat),void 0!==s.center&&o.center.fromArray(s.center),void 0!==s.rotation&&(o.rotation=s.rotation),void 0!==s.wrap&&(o.wrapS=n(s.wrap[0],wm),o.wrapT=n(s.wrap[1],wm)),void 0!==s.format&&(o.format=s.format),void 0!==s.type&&(o.type=s.type),void 0!==s.encoding&&(o.encoding=s.encoding),void 0!==s.minFilter&&(o.minFilter=n(s.minFilter,Mm)),void 0!==s.magFilter&&(o.magFilter=n(s.magFilter,Mm)),void 0!==s.anisotropy&&(o.anisotropy=s.anisotropy),void 0!==s.flipY&&(o.flipY=s.flipY),void 0!==s.premultiplyAlpha&&(o.premultiplyAlpha=s.premultiplyAlpha),void 0!==s.unpackAlignment&&(o.unpackAlignment=s.unpackAlignment),r[s.uuid]=o}return r}parseObject(t,e,n,r){let i,s,o;function a(t){return void 0===e[t]&&console.warn("THREE.ObjectLoader: Undefined geometry",t),e[t]}function l(t){if(void 0!==t){if(Array.isArray(t)){const e=[];for(let r=0,i=t.length;r<i;r++){const i=t[r];void 0===n[i]&&console.warn("THREE.ObjectLoader: Undefined material",i),e.push(n[i])}return e}return void 0===n[t]&&console.warn("THREE.ObjectLoader: Undefined material",t),n[t]}}switch(t.type){case"Scene":i=new yh,void 0!==t.background&&Number.isInteger(t.background)&&(i.background=new xi(t.background)),void 0!==t.fog&&("Fog"===t.fog.type?i.fog=new vh(t.fog.color,t.fog.near,t.fog.far):"FogExp2"===t.fog.type&&(i.fog=new xh(t.fog.color,t.fog.density)));break;case"PerspectiveCamera":i=new xs(t.fov,t.aspect,t.near,t.far),void 0!==t.focus&&(i.focus=t.focus),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.filmGauge&&(i.filmGauge=t.filmGauge),void 0!==t.filmOffset&&(i.filmOffset=t.filmOffset),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"OrthographicCamera":i=new lm(t.left,t.right,t.top,t.bottom,t.near,t.far),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"AmbientLight":i=new um(t.color,t.intensity);break;case"DirectionalLight":i=new hm(t.color,t.intensity);break;case"PointLight":i=new am(t.color,t.intensity,t.distance,t.decay);break;case"RectAreaLight":i=new pm(t.color,t.intensity,t.width,t.height);break;case"SpotLight":i=new nm(t.color,t.intensity,t.distance,t.angle,t.penumbra,t.decay);break;case"HemisphereLight":i=new Jd(t.color,t.groundColor,t.intensity);break;case"LightProbe":i=(new mm).fromJSON(t);break;case"SkinnedMesh":i=new Xh(s=a(t.geometry),o=l(t.material)),void 0!==t.bindMode&&(i.bindMode=t.bindMode),void 0!==t.bindMatrix&&i.bindMatrix.fromArray(t.bindMatrix),void 0!==t.skeleton&&(i.skeleton=t.skeleton);break;case"Mesh":i=new os(s=a(t.geometry),o=l(t.material));break;case"InstancedMesh":s=a(t.geometry),o=l(t.material);const e=t.count,n=t.instanceMatrix;(i=new nu(s,o,e)).instanceMatrix=new bi(new Float32Array(n.array),16);break;case"LOD":i=new Uh;break;case"Line":i=new cu(a(t.geometry),l(t.material));break;case"LineLoop":i=new du(a(t.geometry),l(t.material));break;case"LineSegments":i=new pu(a(t.geometry),l(t.material));break;case"PointCloud":case"Points":i=new yu(a(t.geometry),l(t.material));break;case"Sprite":i=new Oh(l(t.material));break;case"Group":i=new hh;break;case"Bone":i=new Yh;break;default:i=new Xr}if(i.uuid=t.uuid,void 0!==t.name&&(i.name=t.name),void 0!==t.matrix?(i.matrix.fromArray(t.matrix),void 0!==t.matrixAutoUpdate&&(i.matrixAutoUpdate=t.matrixAutoUpdate),i.matrixAutoUpdate&&i.matrix.decompose(i.position,i.quaternion,i.scale)):(void 0!==t.position&&i.position.fromArray(t.position),void 0!==t.rotation&&i.rotation.fromArray(t.rotation),void 0!==t.quaternion&&i.quaternion.fromArray(t.quaternion),void 0!==t.scale&&i.scale.fromArray(t.scale)),void 0!==t.castShadow&&(i.castShadow=t.castShadow),void 0!==t.receiveShadow&&(i.receiveShadow=t.receiveShadow),t.shadow&&(void 0!==t.shadow.bias&&(i.shadow.bias=t.shadow.bias),void 0!==t.shadow.normalBias&&(i.shadow.normalBias=t.shadow.normalBias),void 0!==t.shadow.radius&&(i.shadow.radius=t.shadow.radius),void 0!==t.shadow.mapSize&&i.shadow.mapSize.fromArray(t.shadow.mapSize),void 0!==t.shadow.camera&&(i.shadow.camera=this.parseObject(t.shadow.camera))),void 0!==t.visible&&(i.visible=t.visible),void 0!==t.frustumCulled&&(i.frustumCulled=t.frustumCulled),void 0!==t.renderOrder&&(i.renderOrder=t.renderOrder),void 0!==t.userData&&(i.userData=t.userData),void 0!==t.layers&&(i.layers.mask=t.layers),void 0!==t.children){const s=t.children;for(let t=0;t<s.length;t++)i.add(this.parseObject(s[t],e,n,r))}if(void 0!==t.animations){const e=t.animations;for(let t=0;t<e.length;t++){const n=e[t];i.animations.push(r[n])}}if("LOD"===t.type){void 0!==t.autoUpdate&&(i.autoUpdate=t.autoUpdate);const e=t.levels;for(let t=0;t<e.length;t++){const n=e[t],r=i.getObjectByProperty("uuid",n.object);void 0!==r&&i.addLevel(r,n.distance)}}return i}bindSkeletons(t,e){0!==Object.keys(e).length&&t.traverse(function(t){if(!0===t.isSkinnedMesh&&void 0!==t.skeleton){const n=e[t.skeleton];void 0===n?console.warn("THREE.ObjectLoader: No skeleton found with UUID:",t.skeleton):t.bind(n,t.bindMatrix)}})}setTexturePath(t){return console.warn("THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath()."),this.setResourcePath(t)}}exports.ObjectLoader=_m;const bm={UVMapping:et,CubeReflectionMapping:nt,CubeRefractionMapping:rt,EquirectangularReflectionMapping:it,EquirectangularRefractionMapping:st,CubeUVReflectionMapping:ot,CubeUVRefractionMapping:at},wm={RepeatWrapping:lt,ClampToEdgeWrapping:ct,MirroredRepeatWrapping:ht},Mm={NearestFilter:ut,NearestMipmapNearestFilter:pt,NearestMipmapLinearFilter:mt,LinearFilter:gt,LinearMipmapNearestFilter:xt,LinearMipmapLinearFilter:yt};function Sm(t){"undefined"==typeof createImageBitmap&&console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported."),"undefined"==typeof fetch&&console.warn("THREE.ImageBitmapLoader: fetch() not supported."),hd.call(this,t),this.options={premultiplyAlpha:"none"}}Sm.prototype=Object.assign(Object.create(hd.prototype),{constructor:Sm,isImageBitmapLoader:!0,setOptions:function(t){return this.options=t,this},load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o={};o.credentials="anonymous"===this.crossOrigin?"same-origin":"include",o.headers=this.requestHeader,fetch(t,o).then(function(t){return t.blob()}).then(function(t){return createImageBitmap(t,Object.assign(i.options,{colorSpaceConversion:"none"}))}).then(function(n){ad.add(t,n),e&&e(n),i.manager.itemEnd(t)}).catch(function(e){r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}),i.manager.itemStart(t)}});class Tm{constructor(){this.type="ShapePath",this.color=new xi,this.subPaths=[],this.currentPath=null}moveTo(t,e){return this.currentPath=new Xd,this.subPaths.push(this.currentPath),this.currentPath.moveTo(t,e),this}lineTo(t,e){return this.currentPath.lineTo(t,e),this}quadraticCurveTo(t,e,n,r){return this.currentPath.quadraticCurveTo(t,e,n,r),this}bezierCurveTo(t,e,n,r,i,s){return this.currentPath.bezierCurveTo(t,e,n,r,i,s),this}splineThru(t){return this.currentPath.splineThru(t),this}toShapes(t,e){function n(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n],i=new Yd;i.curves=r.curves,e.push(i)}return e}function r(t,e){const n=e.length;let r=!1;for(let i=n-1,s=0;s<n;i=s++){let n=e[i],o=e[s],a=o.x-n.x,l=o.y-n.y;if(Math.abs(l)>Number.EPSILON){if(l<0&&(n=e[s],a=-a,o=e[i],l=-l),t.y<n.y||t.y>o.y)continue;if(t.y===n.y){if(t.x===n.x)return!0}else{const e=l*(t.x-n.x)-a*(t.y-n.y);if(0===e)return!0;if(e<0)continue;r=!r}}else{if(t.y!==n.y)continue;if(o.x<=t.x&&t.x<=n.x||n.x<=t.x&&t.x<=o.x)return!0}}return r}const i=dp.isClockWise,s=this.subPaths;if(0===s.length)return[];if(!0===e)return n(s);let o,a,l;const c=[];if(1===s.length)return a=s[0],(l=new Yd).curves=a.curves,c.push(l),c;let h=!i(s[0].getPoints());h=t?!h:h;const u=[],p=[];let d,m,f=[],g=0;p[g]=void 0,f[g]=[];for(let x=0,v=s.length;x<v;x++)o=i(d=(a=s[x]).getPoints()),(o=t?!o:o)?(!h&&p[g]&&g++,p[g]={s:new Yd,p:d},p[g].s.curves=a.curves,h&&g++,f[g]=[]):f[g].push({h:a,p:d[0]});if(!p[0])return n(s);if(p.length>1){let t=!1;const e=[];for(let n=0,r=p.length;n<r;n++)u[n]=[];for(let n=0,i=p.length;n<i;n++){const i=f[n];for(let s=0;s<i.length;s++){const o=i[s];let a=!0;for(let i=0;i<p.length;i++)r(o.p,p[i].p)&&(n!==i&&e.push({froms:n,tos:i,hole:s}),a?(a=!1,u[i].push(o)):t=!0);a&&u[n].push(o)}}e.length>0&&(t||(f=u))}for(let x=0,v=p.length;x<v;x++){l=p[x].s,c.push(l);for(let t=0,e=(m=f[x]).length;t<e;t++)l.holes.push(m[t].h)}return c}}exports.ShapePath=Tm;class Em{constructor(t){this.type="Font",this.data=t}generateShapes(t,e=100){const n=[],r=Am(t,e,this.data);for(let i=0,s=r.length;i<s;i++)Array.prototype.push.apply(n,r[i].toShapes());return n}}function Am(t,e,n){const r=Array.from(t),i=e/n.resolution,s=(n.boundingBox.yMax-n.boundingBox.yMin+n.underlineThickness)*i,o=[];let a=0,l=0;for(let c=0;c<r.length;c++){const t=r[c];if("\n"===t)a=0,l-=s;else{const e=Lm(t,i,a,l,n);a+=e.offsetX,o.push(e.path)}}return o}function Lm(t,e,n,r,i){const s=i.glyphs[t]||i.glyphs["?"];if(!s)return void console.error('THREE.Font: character "'+t+'" does not exists in font family '+i.familyName+".");const o=new Tm;let a,l,c,h,u,p,d,m;if(s.o){const t=s._cachedOutline||(s._cachedOutline=s.o.split(" "));for(let i=0,s=t.length;i<s;){switch(t[i++]){case"m":a=t[i++]*e+n,l=t[i++]*e+r,o.moveTo(a,l);break;case"l":a=t[i++]*e+n,l=t[i++]*e+r,o.lineTo(a,l);break;case"q":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,o.quadraticCurveTo(u,p,c,h);break;case"b":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,d=t[i++]*e+n,m=t[i++]*e+r,o.bezierCurveTo(u,p,d,m,c,h)}}}return{offsetX:s.ha*e,path:o}}exports.Font=Em,Em.prototype.isFont=!0;class Rm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(t){let n;try{n=JSON.parse(t)}catch(s){console.warn("THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead."),n=JSON.parse(t.substring(65,t.length-2))}const r=i.parse(n);e&&e(r)},n,r)}parse(t){return new Em(t)}}let Cm;exports.FontLoader=Rm;const Pm={getContext:function(){return void 0===Cm&&(Cm=new(window.AudioContext||window.webkitAudioContext)),Cm},setContext:function(t){Cm=t}};exports.AudioContext=Pm;class Dm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setResponseType("arraybuffer"),s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{const o=n.slice(0);Pm.getContext().decodeAudioData(o,function(t){e(t)})}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}}exports.AudioLoader=Dm;class Im extends mm{constructor(t,e,n=1){super(void 0,n);const r=(new xi).set(t),i=(new xi).set(e),s=new Yn(r.r,r.g,r.b),o=new Yn(i.r,i.g,i.b),a=Math.sqrt(Math.PI),l=a*Math.sqrt(.75);this.sh.coefficients[0].copy(s).add(o).multiplyScalar(a),this.sh.coefficients[1].copy(s).sub(o).multiplyScalar(l)}}exports.HemisphereLightProbe=Im,Im.prototype.isHemisphereLightProbe=!0;class Bm extends mm{constructor(t,e=1){super(void 0,e);const n=(new xi).set(t);this.sh.coefficients[0].set(n.r,n.g,n.b).multiplyScalar(2*Math.sqrt(Math.PI))}}exports.AmbientLightProbe=Bm,Bm.prototype.isAmbientLightProbe=!0;const Nm=new wr,Fm=new wr;class Om{constructor(){this.type="StereoCamera",this.aspect=1,this.eyeSep=.064,this.cameraL=new xs,this.cameraL.layers.enable(1),this.cameraL.matrixAutoUpdate=!1,this.cameraR=new xs,this.cameraR.layers.enable(2),this.cameraR.matrixAutoUpdate=!1,this._cache={focus:null,fov:null,aspect:null,near:null,far:null,zoom:null,eyeSep:null}}update(t){const e=this._cache;if(e.focus!==t.focus||e.fov!==t.fov||e.aspect!==t.aspect*this.aspect||e.near!==t.near||e.far!==t.far||e.zoom!==t.zoom||e.eyeSep!==this.eyeSep){e.focus=t.focus,e.fov=t.fov,e.aspect=t.aspect*this.aspect,e.near=t.near,e.far=t.far,e.zoom=t.zoom,e.eyeSep=this.eyeSep;const n=t.projectionMatrix.clone(),r=e.eyeSep/2,i=r*e.near/e.focus,s=e.near*Math.tan(Fn.DEG2RAD*e.fov*.5)/e.zoom;let o,a;Fm.elements[12]=-r,Nm.elements[12]=r,o=-s*e.aspect+i,a=s*e.aspect+i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraL.projectionMatrix.copy(n),o=-s*e.aspect-i,a=s*e.aspect-i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraR.projectionMatrix.copy(n)}this.cameraL.matrixWorld.copy(t.matrixWorld).multiply(Fm),this.cameraR.matrixWorld.copy(t.matrixWorld).multiply(Nm)}}exports.StereoCamera=Om;class zm{constructor(t){this.autoStart=void 0===t||t,this.startTime=0,this.oldTime=0,this.elapsedTime=0,this.running=!1}start(){this.startTime=Gm(),this.oldTime=this.startTime,this.elapsedTime=0,this.running=!0}stop(){this.getElapsedTime(),this.running=!1,this.autoStart=!1}getElapsedTime(){return this.getDelta(),this.elapsedTime}getDelta(){let t=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){const e=Gm();t=(e-this.oldTime)/1e3,this.oldTime=e,this.elapsedTime+=t}return t}}function Gm(){return("undefined"==typeof performance?Date:performance).now()}exports.Clock=zm;const Hm=new Yn,Um=new Xn,km=new Yn,Vm=new Yn;class Wm extends Xr{constructor(){super(),this.type="AudioListener",this.context=Pm.getContext(),this.gain=this.context.createGain(),this.gain.connect(this.context.destination),this.filter=null,this.timeDelta=0,this._clock=new zm}getInput(){return this.gain}removeFilter(){return null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null),this}getFilter(){return this.filter}setFilter(t){return null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):this.gain.disconnect(this.context.destination),this.filter=t,this.gain.connect(this.filter),this.filter.connect(this.context.destination),this}getMasterVolume(){return this.gain.gain.value}setMasterVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}updateMatrixWorld(t){super.updateMatrixWorld(t);const e=this.context.listener,n=this.up;if(this.timeDelta=this._clock.getDelta(),this.matrixWorld.decompose(Hm,Um,km),Vm.set(0,0,-1).applyQuaternion(Um),e.positionX){const t=this.context.currentTime+this.timeDelta;e.positionX.linearRampToValueAtTime(Hm.x,t),e.positionY.linearRampToValueAtTime(Hm.y,t),e.positionZ.linearRampToValueAtTime(Hm.z,t),e.forwardX.linearRampToValueAtTime(Vm.x,t),e.forwardY.linearRampToValueAtTime(Vm.y,t),e.forwardZ.linearRampToValueAtTime(Vm.z,t),e.upX.linearRampToValueAtTime(n.x,t),e.upY.linearRampToValueAtTime(n.y,t),e.upZ.linearRampToValueAtTime(n.z,t)}else e.setPosition(Hm.x,Hm.y,Hm.z),e.setOrientation(Vm.x,Vm.y,Vm.z,n.x,n.y,n.z)}}exports.AudioListener=Wm;class jm extends Xr{constructor(t){super(),this.type="Audio",this.listener=t,this.context=t.context,this.gain=this.context.createGain(),this.gain.connect(t.getInput()),this.autoplay=!1,this.buffer=null,this.detune=0,this.loop=!1,this.loopStart=0,this.loopEnd=0,this.offset=0,this.duration=void 0,this.playbackRate=1,this.isPlaying=!1,this.hasPlaybackControl=!0,this.source=null,this.sourceType="empty",this._startedAt=0,this._progress=0,this._connected=!1,this.filters=[]}getOutput(){return this.gain}setNodeSource(t){return this.hasPlaybackControl=!1,this.sourceType="audioNode",this.source=t,this.connect(),this}setMediaElementSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaNode",this.source=this.context.createMediaElementSource(t),this.connect(),this}setMediaStreamSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaStreamNode",this.source=this.context.createMediaStreamSource(t),this.connect(),this}setBuffer(t){return this.buffer=t,this.sourceType="buffer",this.autoplay&&this.play(),this}play(t=0){if(!0===this.isPlaying)return void console.warn("THREE.Audio: Audio is already playing.");if(!1===this.hasPlaybackControl)return void console.warn("THREE.Audio: this Audio has no playback control.");this._startedAt=this.context.currentTime+t;const e=this.context.createBufferSource();return e.buffer=this.buffer,e.loop=this.loop,e.loopStart=this.loopStart,e.loopEnd=this.loopEnd,e.onended=this.onEnded.bind(this),e.start(this._startedAt,this._progress+this.offset,this.duration),this.isPlaying=!0,this.source=e,this.setDetune(this.detune),this.setPlaybackRate(this.playbackRate),this.connect()}pause(){if(!1!==this.hasPlaybackControl)return!0===this.isPlaying&&(this._progress+=Math.max(this.context.currentTime-this._startedAt,0)*this.playbackRate,!0===this.loop&&(this._progress=this._progress%(this.duration||this.buffer.duration)),this.source.stop(),this.source.onended=null,this.isPlaying=!1),this;console.warn("THREE.Audio: this Audio has no playback control.")}stop(){if(!1!==this.hasPlaybackControl)return this._progress=0,this.source.stop(),this.source.onended=null,this.isPlaying=!1,this;console.warn("THREE.Audio: this Audio has no playback control.")}connect(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].connect(this.filters[t]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());return this._connected=!0,this}disconnect(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].disconnect(this.filters[t]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this._connected=!1,this}getFilters(){return this.filters}setFilters(t){return t||(t=[]),!0===this._connected?(this.disconnect(),this.filters=t.slice(),this.connect()):this.filters=t.slice(),this}setDetune(t){if(this.detune=t,void 0!==this.source.detune)return!0===this.isPlaying&&this.source.detune.setTargetAtTime(this.detune,this.context.currentTime,.01),this}getDetune(){return this.detune}getFilter(){return this.getFilters()[0]}setFilter(t){return this.setFilters(t?[t]:[])}setPlaybackRate(t){if(!1!==this.hasPlaybackControl)return this.playbackRate=t,!0===this.isPlaying&&this.source.playbackRate.setTargetAtTime(this.playbackRate,this.context.currentTime,.01),this;console.warn("THREE.Audio: this Audio has no playback control.")}getPlaybackRate(){return this.playbackRate}onEnded(){this.isPlaying=!1}getLoop(){return!1===this.hasPlaybackControl?(console.warn("THREE.Audio: this Audio has no playback control."),!1):this.loop}setLoop(t){if(!1!==this.hasPlaybackControl)return this.loop=t,!0===this.isPlaying&&(this.source.loop=this.loop),this;console.warn("THREE.Audio: this Audio has no playback control.")}setLoopStart(t){return this.loopStart=t,this}setLoopEnd(t){return this.loopEnd=t,this}getVolume(){return this.gain.gain.value}setVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}}exports.Audio=jm;const qm=new Yn,Xm=new Xn,Ym=new Yn,Zm=new Yn;class Jm extends jm{constructor(t){super(t),this.panner=this.context.createPanner(),this.panner.panningModel="HRTF",this.panner.connect(this.gain)}getOutput(){return this.panner}getRefDistance(){return this.panner.refDistance}setRefDistance(t){return this.panner.refDistance=t,this}getRolloffFactor(){return this.panner.rolloffFactor}setRolloffFactor(t){return this.panner.rolloffFactor=t,this}getDistanceModel(){return this.panner.distanceModel}setDistanceModel(t){return this.panner.distanceModel=t,this}getMaxDistance(){return this.panner.maxDistance}setMaxDistance(t){return this.panner.maxDistance=t,this}setDirectionalCone(t,e,n){return this.panner.coneInnerAngle=t,this.panner.coneOuterAngle=e,this.panner.coneOuterGain=n,this}updateMatrixWorld(t){if(super.updateMatrixWorld(t),!0===this.hasPlaybackControl&&!1===this.isPlaying)return;this.matrixWorld.decompose(qm,Xm,Ym),Zm.set(0,0,1).applyQuaternion(Xm);const e=this.panner;if(e.positionX){const t=this.context.currentTime+this.listener.timeDelta;e.positionX.linearRampToValueAtTime(qm.x,t),e.positionY.linearRampToValueAtTime(qm.y,t),e.positionZ.linearRampToValueAtTime(qm.z,t),e.orientationX.linearRampToValueAtTime(Zm.x,t),e.orientationY.linearRampToValueAtTime(Zm.y,t),e.orientationZ.linearRampToValueAtTime(Zm.z,t)}else e.setPosition(qm.x,qm.y,qm.z),e.setOrientation(Zm.x,Zm.y,Zm.z)}}exports.PositionalAudio=Jm;class Qm{constructor(t,e=2048){this.analyser=t.context.createAnalyser(),this.analyser.fftSize=e,this.data=new Uint8Array(this.analyser.frequencyBinCount),t.getOutput().connect(this.analyser)}getFrequencyData(){return this.analyser.getByteFrequencyData(this.data),this.data}getAverageFrequency(){let t=0;const e=this.getFrequencyData();for(let n=0;n<e.length;n++)t+=e[n];return t/e.length}}exports.AudioAnalyser=Qm;class Km{constructor(t,e,n){let r,i,s;switch(this.binding=t,this.valueSize=n,e){case"quaternion":r=this._slerp,i=this._slerpAdditive,s=this._setAdditiveIdentityQuaternion,this.buffer=new Float64Array(6*n),this._workIndex=5;break;case"string":case"bool":r=this._select,i=this._select,s=this._setAdditiveIdentityOther,this.buffer=new Array(5*n);break;default:r=this._lerp,i=this._lerpAdditive,s=this._setAdditiveIdentityNumeric,this.buffer=new Float64Array(5*n)}this._mixBufferRegion=r,this._mixBufferRegionAdditive=i,this._setIdentity=s,this._origIndex=3,this._addIndex=4,this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,this.useCount=0,this.referenceCount=0}accumulate(t,e){const n=this.buffer,r=this.valueSize,i=t*r+r;let s=this.cumulativeWeight;if(0===s){for(let t=0;t!==r;++t)n[i+t]=n[t];s=e}else{const t=e/(s+=e);this._mixBufferRegion(n,i,0,t,r)}this.cumulativeWeight=s}accumulateAdditive(t){const e=this.buffer,n=this.valueSize,r=n*this._addIndex;0===this.cumulativeWeightAdditive&&this._setIdentity(),this._mixBufferRegionAdditive(e,r,0,t,n),this.cumulativeWeightAdditive+=t}apply(t){const e=this.valueSize,n=this.buffer,r=t*e+e,i=this.cumulativeWeight,s=this.cumulativeWeightAdditive,o=this.binding;if(this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,i<1){const t=e*this._origIndex;this._mixBufferRegion(n,r,t,1-i,e)}s>0&&this._mixBufferRegionAdditive(n,r,this._addIndex*e,1,e);for(let a=e,l=e+e;a!==l;++a)if(n[a]!==n[a+e]){o.setValue(n,r);break}}saveOriginalState(){const t=this.binding,e=this.buffer,n=this.valueSize,r=n*this._origIndex;t.getValue(e,r);for(let i=n,s=r;i!==s;++i)e[i]=e[r+i%n];this._setIdentity(),this.cumulativeWeight=0,this.cumulativeWeightAdditive=0}restoreOriginalState(){const t=3*this.valueSize;this.binding.setValue(this.buffer,t)}_setAdditiveIdentityNumeric(){const t=this._addIndex*this.valueSize,e=t+this.valueSize;for(let n=t;n<e;n++)this.buffer[n]=0}_setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric(),this.buffer[this._addIndex*this.valueSize+3]=1}_setAdditiveIdentityOther(){const t=this._origIndex*this.valueSize,e=this._addIndex*this.valueSize;for(let n=0;n<this.valueSize;n++)this.buffer[e+n]=this.buffer[t+n]}_select(t,e,n,r,i){if(r>=.5)for(let s=0;s!==i;++s)t[e+s]=t[n+s]}_slerp(t,e,n,r){Xn.slerpFlat(t,e,t,e,t,n,r)}_slerpAdditive(t,e,n,r,i){const s=this._workIndex*i;Xn.multiplyQuaternionsFlat(t,s,t,e,t,n),Xn.slerpFlat(t,e,t,e,t,s,r)}_lerp(t,e,n,r,i){const s=1-r;for(let o=0;o!==i;++o){const i=e+o;t[i]=t[i]*s+t[n+o]*r}}_lerpAdditive(t,e,n,r,i){for(let s=0;s!==i;++s){const i=e+s;t[i]=t[i]+t[n+s]*r}}}exports.PropertyMixer=Km;const $m="\\[\\]\\.:\\/",tf=new RegExp("[\\[\\]\\.:\\/]","g"),ef="[^\\[\\]\\.:\\/]",nf="[^"+"\\[\\]\\.:\\/".replace("\\.","")+"]",rf=/((?:WC+[\/:])*)/.source.replace("WC",ef),sf=/(WCOD+)?/.source.replace("WCOD",nf),of=/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC",ef),af=/\.(WC+)(?:\[(.+)\])?/.source.replace("WC",ef),lf=new RegExp("^"+rf+sf+of+af+"$"),cf=["material","materials","bones"];function hf(t,e,n){const r=n||uf.parseTrackName(e);this._targetGroup=t,this._bindings=t.subscribe_(e,r)}function uf(t,e,n){this.path=e,this.parsedPath=n||uf.parseTrackName(e),this.node=uf.findNode(t,this.parsedPath.nodeName)||t,this.rootNode=t}Object.assign(hf.prototype,{getValue:function(t,e){this.bind();const n=this._targetGroup.nCachedObjects_,r=this._bindings[n];void 0!==r&&r.getValue(t,e)},setValue:function(t,e){const n=this._bindings;for(let r=this._targetGroup.nCachedObjects_,i=n.length;r!==i;++r)n[r].setValue(t,e)},bind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].bind()},unbind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].unbind()}}),Object.assign(uf,{Composite:hf,create:function(t,e,n){return t&&t.isAnimationObjectGroup?new uf.Composite(t,e,n):new uf(t,e,n)},sanitizeNodeName:function(t){return t.replace(/\s/g,"_").replace(tf,"")},parseTrackName:function(t){const e=lf.exec(t);if(!e)throw new Error("PropertyBinding: Cannot parse trackName: "+t);const n={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},r=n.nodeName&&n.nodeName.lastIndexOf(".");if(void 0!==r&&-1!==r){const t=n.nodeName.substring(r+1);-1!==cf.indexOf(t)&&(n.nodeName=n.nodeName.substring(0,r),n.objectName=t)}if(null===n.propertyName||0===n.propertyName.length)throw new Error("PropertyBinding: can not parse propertyName from trackName: "+t);return n},findNode:function(t,e){if(!e||""===e||"."===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){const n=t.skeleton.getBoneByName(e);if(void 0!==n)return n}if(t.children){const n=function(t){for(let r=0;r<t.length;r++){const i=t[r];if(i.name===e||i.uuid===e)return i;const s=n(i.children);if(s)return s}return null},r=n(t.children);if(r)return r}return null}}),Object.assign(uf.prototype,{_getValue_unavailable:function(){},_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(t,e){t[e]=this.node[this.propertyName]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)t[e++]=n[r]},function(t,e){t[e]=this.resolvedProperty[this.propertyIndex]},function(t,e){this.resolvedProperty.toArray(t,e)}],SetterByBindingTypeAndVersioning:[[function(t,e){this.targetObject[this.propertyName]=t[e]},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.needsUpdate=!0},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty[this.propertyIndex]=t[e]},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty.fromArray(t,e)},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}]],getValue:function(t,e){this.bind(),this.getValue(t,e)},setValue:function(t,e){this.bind(),this.setValue(t,e)},bind:function(){let t=this.node;const e=this.parsedPath,n=e.objectName,r=e.propertyName;let i=e.propertyIndex;if(t||(t=uf.findNode(this.rootNode,e.nodeName)||this.rootNode,this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.error("THREE.PropertyBinding: Trying to update node for track: "+this.path+" but it wasn't found.");if(n){let r=e.objectIndex;switch(n){case"materials":if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.materials)return void console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);t=t.material.materials;break;case"bones":if(!t.skeleton)return void console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);t=t.skeleton.bones;for(let e=0;e<t.length;e++)if(t[e].name===r){r=e;break}break;default:if(void 0===t[n])return void console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",this);t=t[n]}if(void 0!==r){if(void 0===t[r])return void console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,t);t=t[r]}}const s=t[r];if(void 0===s){const n=e.nodeName;return void console.error("THREE.PropertyBinding: Trying to update property for track: "+n+"."+r+" but it wasn't found.",t)}let o=this.Versioning.None;this.targetObject=t,void 0!==t.needsUpdate?o=this.Versioning.NeedsUpdate:void 0!==t.matrixWorldNeedsUpdate&&(o=this.Versioning.MatrixWorldNeedsUpdate);let a=this.BindingType.Direct;if(void 0!==i){if("morphTargetInfluences"===r){if(!t.geometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);if(!t.geometry.isBufferGeometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.",this);if(!t.geometry.morphAttributes)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);void 0!==t.morphTargetDictionary[i]&&(i=t.morphTargetDictionary[i])}a=this.BindingType.ArrayElement,this.resolvedProperty=s,this.propertyIndex=i}else void 0!==s.fromArray&&void 0!==s.toArray?(a=this.BindingType.HasFromToArray,this.resolvedProperty=s):Array.isArray(s)?(a=this.BindingType.EntireArray,this.resolvedProperty=s):this.propertyName=r;this.getValue=this.GetterByBindingType[a],this.setValue=this.SetterByBindingTypeAndVersioning[a][o]},unbind:function(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}),Object.assign(uf.prototype,{_getValue_unbound:uf.prototype.getValue,_setValue_unbound:uf.prototype.setValue});class pf{constructor(){this.uuid=Fn.generateUUID(),this._objects=Array.prototype.slice.call(arguments),this.nCachedObjects_=0;const t={};this._indicesByUUID=t;for(let n=0,r=arguments.length;n!==r;++n)t[arguments[n].uuid]=n;this._paths=[],this._parsedPaths=[],this._bindings=[],this._bindingsIndicesByPath={};const e=this;this.stats={objects:{get total(){return e._objects.length},get inUse(){return this.total-e.nCachedObjects_}},get bindingsPerObject(){return e._bindings.length}}}add(){const t=this._objects,e=this._indicesByUUID,n=this._paths,r=this._parsedPaths,i=this._bindings,s=i.length;let o=void 0,a=t.length,l=this.nCachedObjects_;for(let c=0,h=arguments.length;c!==h;++c){const h=arguments[c],u=h.uuid;let p=e[u];if(void 0===p){p=a++,e[u]=p,t.push(h);for(let t=0,e=s;t!==e;++t)i[t].push(new uf(h,n[t],r[t]))}else if(p<l){o=t[p];const a=--l,c=t[a];e[c.uuid]=p,t[p]=c,e[u]=a,t[a]=h;for(let t=0,e=s;t!==e;++t){const e=i[t],s=e[a];let o=e[p];e[p]=s,void 0===o&&(o=new uf(h,n[t],r[t])),e[a]=o}}else t[p]!==o&&console.error("THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.")}this.nCachedObjects_=l}remove(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_;for(let s=0,o=arguments.length;s!==o;++s){const o=arguments[s],a=o.uuid,l=e[a];if(void 0!==l&&l>=i){const s=i++,c=t[s];e[c.uuid]=l,t[l]=c,e[a]=s,t[s]=o;for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[s],i=e[l];e[l]=r,e[s]=i}}}this.nCachedObjects_=i}uncache(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_,s=t.length;for(let o=0,a=arguments.length;o!==a;++o){const a=arguments[o].uuid,l=e[a];if(void 0!==l)if(delete e[a],l<i){const o=--i,a=t[o],c=--s,h=t[c];e[a.uuid]=l,t[l]=a,e[h.uuid]=o,t[o]=h,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[o],i=e[c];e[l]=r,e[o]=i,e.pop()}}else{const i=--s,o=t[i];i>0&&(e[o.uuid]=l),t[l]=o,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t];e[l]=e[i],e.pop()}}}this.nCachedObjects_=i}subscribe_(t,e){const n=this._bindingsIndicesByPath;let r=n[t];const i=this._bindings;if(void 0!==r)return i[r];const s=this._paths,o=this._parsedPaths,a=this._objects,l=a.length,c=this.nCachedObjects_,h=new Array(l);r=i.length,n[t]=r,s.push(t),o.push(e),i.push(h);for(let u=c,p=a.length;u!==p;++u){const n=a[u];h[u]=new uf(n,t,e)}return h}unsubscribe_(t){const e=this._bindingsIndicesByPath,n=e[t];if(void 0!==n){const r=this._paths,i=this._parsedPaths,s=this._bindings,o=s.length-1,a=s[o];e[t[o]]=n,s[n]=a,s.pop(),i[n]=i[o],i.pop(),r[n]=r[o],r.pop()}}}exports.AnimationObjectGroup=pf,pf.prototype.isAnimationObjectGroup=!0;class df{constructor(t,e,n=null,r=e.blendMode){this._mixer=t,this._clip=e,this._localRoot=n,this.blendMode=r;const i=e.tracks,s=i.length,o=new Array(s),a={endingStart:Ge,endingEnd:Ge};for(let l=0;l!==s;++l){const t=i[l].createInterpolant(null);o[l]=t,t.settings=a}this._interpolantSettings=a,this._interpolants=o,this._propertyBindings=new Array(s),this._cacheIndex=null,this._byClipCacheIndex=null,this._timeScaleInterpolant=null,this._weightInterpolant=null,this.loop=Be,this._loopCount=-1,this._startTime=null,this.time=0,this.timeScale=1,this._effectiveTimeScale=1,this.weight=1,this._effectiveWeight=1,this.repetitions=1/0,this.paused=!1,this.enabled=!0,this.clampWhenFinished=!1,this.zeroSlopeAtStart=!0,this.zeroSlopeAtEnd=!0}play(){return this._mixer._activateAction(this),this}stop(){return this._mixer._deactivateAction(this),this.reset()}reset(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()}isRunning(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)}isScheduled(){return this._mixer._isActiveAction(this)}startAt(t){return this._startTime=t,this}setLoop(t,e){return this.loop=t,this.repetitions=e,this}setEffectiveWeight(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()}getEffectiveWeight(){return this._effectiveWeight}fadeIn(t){return this._scheduleFading(t,0,1)}fadeOut(t){return this._scheduleFading(t,1,0)}crossFadeFrom(t,e,n){if(t.fadeOut(e),this.fadeIn(e),n){const n=this._clip.duration,r=t._clip.duration,i=r/n,s=n/r;t.warp(1,i,e),this.warp(s,1,e)}return this}crossFadeTo(t,e,n){return t.crossFadeFrom(this,e,n)}stopFading(){const t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}setEffectiveTimeScale(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()}getEffectiveTimeScale(){return this._effectiveTimeScale}setDuration(t){return this.timeScale=this._clip.duration/t,this.stopWarping()}syncWith(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()}halt(t){return this.warp(this._effectiveTimeScale,0,t)}warp(t,e,n){const r=this._mixer,i=r.time,s=this.timeScale;let o=this._timeScaleInterpolant;null===o&&(o=r._lendControlInterpolant(),this._timeScaleInterpolant=o);const a=o.parameterPositions,l=o.sampleValues;return a[0]=i,a[1]=i+n,l[0]=t/s,l[1]=e/s,this}stopWarping(){const t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}getMixer(){return this._mixer}getClip(){return this._clip}getRoot(){return this._localRoot||this._mixer._root}_update(t,e,n,r){if(!this.enabled)return void this._updateWeight(t);const i=this._startTime;if(null!==i){const r=(t-i)*n;if(r<0||0===n)return;this._startTime=null,e=n*r}e*=this._updateTimeScale(t);const s=this._updateTime(e),o=this._updateWeight(t);if(o>0){const t=this._interpolants,e=this._propertyBindings;switch(this.blendMode){case Ve:for(let n=0,r=t.length;n!==r;++n)t[n].evaluate(s),e[n].accumulateAdditive(o);break;case ke:default:for(let n=0,i=t.length;n!==i;++n)t[n].evaluate(s),e[n].accumulate(r,o)}}}_updateWeight(t){let e=0;if(this.enabled){e=this.weight;const n=this._weightInterpolant;if(null!==n){const r=n.evaluate(t)[0];e*=r,t>n.parameterPositions[1]&&(this.stopFading(),0===r&&(this.enabled=!1))}}return this._effectiveWeight=e,e}_updateTimeScale(t){let e=0;if(!this.paused){e=this.timeScale;const n=this._timeScaleInterpolant;if(null!==n){e*=n.evaluate(t)[0],t>n.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e}_updateTime(t){const e=this._clip.duration,n=this.loop;let r=this.time+t,i=this._loopCount;const s=n===Ne;if(0===t)return-1===i?r:s&&1==(1&i)?e-r:r;if(n===Ie){-1===i&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(r>=e)r=e;else{if(!(r<0)){this.time=r;break t}r=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t<0?-1:1})}}else{if(-1===i&&(t>=0?(i=0,this._setEndings(!0,0===this.repetitions,s)):this._setEndings(0===this.repetitions,!0,s)),r>=e||r<0){const n=Math.floor(r/e);r-=e*n,i+=Math.abs(n);const o=this.repetitions-i;if(o<=0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,r=t>0?e:0,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t>0?1:-1});else{if(1===o){const e=t<0;this._setEndings(e,!e,s)}else this._setEndings(!1,!1,s);this._loopCount=i,this.time=r,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:n})}}else this.time=r;if(s&&1==(1&i))return e-r}return r}_setEndings(t,e,n){const r=this._interpolantSettings;n?(r.endingStart=He,r.endingEnd=He):(r.endingStart=t?this.zeroSlopeAtStart?He:Ge:Ue,r.endingEnd=e?this.zeroSlopeAtEnd?He:Ge:Ue)}_scheduleFading(t,e,n){const r=this._mixer,i=r.time;let s=this._weightInterpolant;null===s&&(s=r._lendControlInterpolant(),this._weightInterpolant=s);const o=s.parameterPositions,a=s.sampleValues;return o[0]=i,a[0]=e,o[1]=i+t,a[1]=n,this}}class mf extends In{constructor(t){super(),this._root=t,this._initMemoryManager(),this._accuIndex=0,this.time=0,this.timeScale=1}_bindAction(t,e){const n=t._localRoot||this._root,r=t._clip.tracks,i=r.length,s=t._propertyBindings,o=t._interpolants,a=n.uuid,l=this._bindingsByRootAndName;let c=l[a];void 0===c&&(c={},l[a]=c);for(let h=0;h!==i;++h){const t=r[h],i=t.name;let l=c[i];if(void 0!==l)s[h]=l;else{if(void 0!==(l=s[h])){null===l._cacheIndex&&(++l.referenceCount,this._addInactiveBinding(l,a,i));continue}const r=e&&e._propertyBindings[h].binding.parsedPath;++(l=new Km(uf.create(n,i,r),t.ValueTypeName,t.getValueSize())).referenceCount,this._addInactiveBinding(l,a,i),s[h]=l}o[h].resultBuffer=l.buffer}}_activateAction(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){const e=(t._localRoot||this._root).uuid,n=t._clip.uuid,r=this._actionsByClip[n];this._bindAction(t,r&&r.knownActions[0]),this._addInactiveAction(t,n,e)}const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==n.useCount++&&(this._lendBinding(n),n.saveOriginalState())}this._lendAction(t)}}_deactivateAction(t){if(this._isActiveAction(t)){const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==--n.useCount&&(n.restoreOriginalState(),this._takeBackBinding(n))}this._takeBackAction(t)}}_initMemoryManager(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;const t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}}_isActiveAction(t){const e=t._cacheIndex;return null!==e&&e<this._nActiveActions}_addInactiveAction(t,e,n){const r=this._actions,i=this._actionsByClip;let s=i[e];if(void 0===s)s={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,i[e]=s;else{const e=s.knownActions;t._byClipCacheIndex=e.length,e.push(t)}t._cacheIndex=r.length,r.push(t),s.actionByRoot[n]=t}_removeInactiveAction(t){const e=this._actions,n=e[e.length-1],r=t._cacheIndex;n._cacheIndex=r,e[r]=n,e.pop(),t._cacheIndex=null;const i=t._clip.uuid,s=this._actionsByClip,o=s[i],a=o.knownActions,l=a[a.length-1],c=t._byClipCacheIndex;l._byClipCacheIndex=c,a[c]=l,a.pop(),t._byClipCacheIndex=null,delete o.actionByRoot[(t._localRoot||this._root).uuid],0===a.length&&delete s[i],this._removeInactiveBindingsForAction(t)}_removeInactiveBindingsForAction(t){const e=t._propertyBindings;for(let n=0,r=e.length;n!==r;++n){const t=e[n];0==--t.referenceCount&&this._removeInactiveBinding(t)}}_lendAction(t){const e=this._actions,n=t._cacheIndex,r=this._nActiveActions++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackAction(t){const e=this._actions,n=t._cacheIndex,r=--this._nActiveActions,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_addInactiveBinding(t,e,n){const r=this._bindingsByRootAndName,i=this._bindings;let s=r[e];void 0===s&&(s={},r[e]=s),s[n]=t,t._cacheIndex=i.length,i.push(t)}_removeInactiveBinding(t){const e=this._bindings,n=t.binding,r=n.rootNode.uuid,i=n.path,s=this._bindingsByRootAndName,o=s[r],a=e[e.length-1],l=t._cacheIndex;a._cacheIndex=l,e[l]=a,e.pop(),delete o[i],0===Object.keys(o).length&&delete s[r]}_lendBinding(t){const e=this._bindings,n=t._cacheIndex,r=this._nActiveBindings++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackBinding(t){const e=this._bindings,n=t._cacheIndex,r=--this._nActiveBindings,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_lendControlInterpolant(){const t=this._controlInterpolants,e=this._nActiveControlInterpolants++;let n=t[e];return void 0===n&&((n=new Yp(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer)).__cacheIndex=e,t[e]=n),n}_takeBackControlInterpolant(t){const e=this._controlInterpolants,n=t.__cacheIndex,r=--this._nActiveControlInterpolants,i=e[r];t.__cacheIndex=r,e[r]=t,i.__cacheIndex=n,e[n]=i}clipAction(t,e,n){const r=e||this._root,i=r.uuid;let s="string"==typeof t?id.findByName(r,t):t;const o=null!==s?s.uuid:t,a=this._actionsByClip[o];let l=null;if(void 0===n&&(n=null!==s?s.blendMode:ke),void 0!==a){const t=a.actionByRoot[i];if(void 0!==t&&t.blendMode===n)return t;l=a.knownActions[0],null===s&&(s=l._clip)}if(null===s)return null;const c=new df(this,s,e,n);return this._bindAction(c,l),this._addInactiveAction(c,o,i),c}existingAction(t,e){const n=e||this._root,r=n.uuid,i="string"==typeof t?id.findByName(n,t):t,s=i?i.uuid:t,o=this._actionsByClip[s];return void 0!==o&&o.actionByRoot[r]||null}stopAllAction(){const t=this._actions;for(let e=this._nActiveActions-1;e>=0;--e)t[e].stop();return this}update(t){t*=this.timeScale;const e=this._actions,n=this._nActiveActions,r=this.time+=t,i=Math.sign(t),s=this._accuIndex^=1;for(let l=0;l!==n;++l){e[l]._update(r,t,i,s)}const o=this._bindings,a=this._nActiveBindings;for(let l=0;l!==a;++l)o[l].apply(s);return this}setTime(t){this.time=0;for(let e=0;e<this._actions.length;e++)this._actions[e].time=0;return this.update(t)}getRoot(){return this._root}uncacheClip(t){const e=this._actions,n=t.uuid,r=this._actionsByClip,i=r[n];if(void 0!==i){const t=i.knownActions;for(let n=0,r=t.length;n!==r;++n){const r=t[n];this._deactivateAction(r);const i=r._cacheIndex,s=e[e.length-1];r._cacheIndex=null,r._byClipCacheIndex=null,s._cacheIndex=i,e[i]=s,e.pop(),this._removeInactiveBindingsForAction(r)}delete r[n]}}uncacheRoot(t){const e=t.uuid,n=this._actionsByClip;for(const i in n){const t=n[i].actionByRoot[e];void 0!==t&&(this._deactivateAction(t),this._removeInactiveAction(t))}const r=this._bindingsByRootAndName[e];if(void 0!==r)for(const i in r){const t=r[i];t.restoreOriginalState(),this._removeInactiveBinding(t)}}uncacheAction(t,e){const n=this.existingAction(t,e);null!==n&&(this._deactivateAction(n),this._removeInactiveAction(n))}}exports.AnimationMixer=mf,mf.prototype._controlInterpolantsResultBuffer=new Float32Array(1);class ff{constructor(t){"string"==typeof t&&(console.warn("THREE.Uniform: Type parameter is no longer needed."),t=arguments[1]),this.value=t}clone(){return new ff(void 0===this.value.clone?this.value:this.value.clone())}}function gf(t,e,n){_h.call(this,t,e),this.meshPerAttribute=n||1}function xf(t,e,n,r,i){this.buffer=t,this.type=e,this.itemSize=n,this.elementSize=r,this.count=i,this.version=0}function vf(t,e,n=0,r=1/0){this.ray=new br(t,e),this.near=n,this.far=r,this.camera=null,this.layers=new Ir,this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}},Object.defineProperties(this.params,{PointCloud:{get:function(){return console.warn("THREE.Raycaster: params.PointCloud has been renamed to params.Points."),this.Points}}})}function yf(t,e){return t.distance-e.distance}function _f(t,e,n,r){if(t.layers.test(e.layers)&&t.raycast(e,n),!0===r){const r=t.children;for(let t=0,i=r.length;t<i;t++)_f(r[t],e,n,!0)}}exports.Uniform=ff,gf.prototype=Object.assign(Object.create(_h.prototype),{constructor:gf,isInstancedInterleavedBuffer:!0,copy:function(t){return _h.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},clone:function(t){const e=_h.prototype.clone.call(this,t);return e.meshPerAttribute=this.meshPerAttribute,e},toJSON:function(t){const e=_h.prototype.toJSON.call(this,t);return e.isInstancedInterleavedBuffer=!0,e.meshPerAttribute=this.meshPerAttribute,e}}),Object.defineProperty(xf.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(xf.prototype,{isGLBufferAttribute:!0,setBuffer:function(t){return this.buffer=t,this},setType:function(t,e){return this.type=t,this.elementSize=e,this},setItemSize:function(t){return this.itemSize=t,this},setCount:function(t){return this.count=t,this}}),Object.assign(vf.prototype,{set:function(t,e){this.ray.set(t,e)},setFromCamera:function(t,e){e&&e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize(),this.camera=e):e&&e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld),this.camera=e):console.error("THREE.Raycaster: Unsupported camera type: "+e.type)},intersectObject:function(t,e=!1,n=[]){return _f(t,this,n,e),n.sort(yf),n},intersectObjects:function(t,e=!1,n=[]){for(let r=0,i=t.length;r<i;r++)_f(t[r],this,n,e);return n.sort(yf),n}});class bf{constructor(t=1,e=0,n=0){return this.radius=t,this.phi=e,this.theta=n,this}set(t,e,n){return this.radius=t,this.phi=e,this.theta=n,this}copy(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this}makeSafe(){return this.phi=Math.max(1e-6,Math.min(Math.PI-1e-6,this.phi)),this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+e*e+n*n),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t,n),this.phi=Math.acos(Fn.clamp(e/this.radius,-1,1))),this}clone(){return(new this.constructor).copy(this)}}exports.Spherical=bf;class wf{constructor(t=1,e=0,n=0){return this.radius=t,this.theta=e,this.y=n,this}set(t,e,n){return this.radius=t,this.theta=e,this.y=n,this}copy(t){return this.radius=t.radius,this.theta=t.theta,this.y=t.y,this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+n*n),this.theta=Math.atan2(t,n),this.y=e,this}clone(){return(new this.constructor).copy(this)}}exports.Cylindrical=wf;const Mf=new On;class Sf{constructor(t=new On(1/0,1/0),e=new On(-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=Mf.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=1/0,this.max.x=this.max.y=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y}getCenter(t){return void 0===t&&(console.warn("THREE.Box2: .getCenter() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box2: .getSize() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box2: .getParameter() target is now required"),e=new On),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y)}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box2: .clampPoint() target is now required"),e=new On),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return Mf.copy(t).clamp(this.min,this.max).sub(t).length()}intersect(t){return this.min.max(t.min),this.max.min(t.max),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box2=Sf,Sf.prototype.isBox2=!0;const Tf=new Yn,Ef=new Yn;class Af{constructor(t=new Yn,e=new Yn){this.start=t,this.end=e}set(t,e){return this.start.copy(t),this.end.copy(e),this}copy(t){return this.start.copy(t.start),this.end.copy(t.end),this}getCenter(t){return void 0===t&&(console.warn("THREE.Line3: .getCenter() target is now required"),t=new Yn),t.addVectors(this.start,this.end).multiplyScalar(.5)}delta(t){return void 0===t&&(console.warn("THREE.Line3: .delta() target is now required"),t=new Yn),t.subVectors(this.end,this.start)}distanceSq(){return this.start.distanceToSquared(this.end)}distance(){return this.start.distanceTo(this.end)}at(t,e){return void 0===e&&(console.warn("THREE.Line3: .at() target is now required"),e=new Yn),this.delta(e).multiplyScalar(t).add(this.start)}closestPointToPointParameter(t,e){Tf.subVectors(t,this.start),Ef.subVectors(this.end,this.start);const n=Ef.dot(Ef);let r=Ef.dot(Tf)/n;return e&&(r=Fn.clamp(r,0,1)),r}closestPointToPoint(t,e,n){const r=this.closestPointToPointParameter(t,e);return void 0===n&&(console.warn("THREE.Line3: .closestPointToPoint() target is now required"),n=new Yn),this.delta(n).multiplyScalar(r).add(this.start)}applyMatrix4(t){return this.start.applyMatrix4(t),this.end.applyMatrix4(t),this}equals(t){return t.start.equals(this.start)&&t.end.equals(this.end)}clone(){return(new this.constructor).copy(this)}}function Lf(t){Xr.call(this),this.material=t,this.render=function(){},this.hasPositions=!1,this.hasNormals=!1,this.hasColors=!1,this.hasUvs=!1,this.positionArray=null,this.normalArray=null,this.colorArray=null,this.uvArray=null,this.count=0}exports.Line3=Af,Lf.prototype=Object.create(Xr.prototype),Lf.prototype.constructor=Lf,Lf.prototype.isImmediateRenderObject=!0;const Rf=new Yn;class Cf extends Xr{constructor(t,e){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=e;const n=new ki,r=[0,0,0,0,0,1,0,0,0,1,0,1,0,0,0,-1,0,1,0,0,0,0,1,1,0,0,0,0,-1,1];for(let s=0,o=1,a=32;s<a;s++,o++){const t=s/a*Math.PI*2,e=o/a*Math.PI*2;r.push(Math.cos(t),Math.sin(t),1,Math.cos(e),Math.sin(e),1)}n.setAttribute("position",new Ci(r,3));const i=new ru({fog:!1,toneMapped:!1});this.cone=new pu(n,i),this.add(this.cone),this.update()}dispose(){this.cone.geometry.dispose(),this.cone.material.dispose()}update(){this.light.updateMatrixWorld();const t=this.light.distance?this.light.distance:1e3,e=t*Math.tan(this.light.angle);this.cone.scale.set(e,e,t),Rf.setFromMatrixPosition(this.light.target.matrixWorld),this.cone.lookAt(Rf),void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}exports.SpotLightHelper=Cf;const Pf=new Yn,Df=new wr,If=new wr;class Bf extends pu{constructor(t){const e=Nf(t),n=new ki,r=[],i=[],s=new xi(0,0,1),o=new xi(0,1,0);for(let a=0;a<e.length;a++){const t=e[a];t.parent&&t.parent.isBone&&(r.push(0,0,0),r.push(0,0,0),i.push(s.r,s.g,s.b),i.push(o.r,o.g,o.b))}n.setAttribute("position",new Ci(r,3)),n.setAttribute("color",new Ci(i,3)),super(n,new ru({vertexColors:!0,depthTest:!1,depthWrite:!1,toneMapped:!1,transparent:!0})),this.type="SkeletonHelper",this.isSkeletonHelper=!0,this.root=t,this.bones=e,this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1}updateMatrixWorld(t){const e=this.bones,n=this.geometry,r=n.getAttribute("position");If.copy(this.root.matrixWorld).invert();for(let i=0,s=0;i<e.length;i++){const t=e[i];t.parent&&t.parent.isBone&&(Df.multiplyMatrices(If,t.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s,Pf.x,Pf.y,Pf.z),Df.multiplyMatrices(If,t.parent.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s+1,Pf.x,Pf.y,Pf.z),s+=2)}n.getAttribute("position").needsUpdate=!0,super.updateMatrixWorld(t)}}function Nf(t){const e=[];t&&t.isBone&&e.push(t);for(let n=0;n<t.children.length;n++)e.push.apply(e,Nf(t.children[n]));return e}exports.SkeletonHelper=Bf;class Ff extends os{constructor(t,e,n){super(new Ep(e,4,2),new vi({wireframe:!0,fog:!1,toneMapped:!1})),this.light=t,this.light.updateMatrixWorld(),this.color=n,this.type="PointLightHelper",this.matrix=this.light.matrixWorld,this.matrixAutoUpdate=!1,this.update()}dispose(){this.geometry.dispose(),this.material.dispose()}update(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)}}exports.PointLightHelper=Ff;const Of=new Yn,zf=new xi,Gf=new xi;class Hf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n;const r=new bp(e);r.rotateY(.5*Math.PI),this.material=new vi({wireframe:!0,fog:!1,toneMapped:!1}),void 0===this.color&&(this.material.vertexColors=!0);const i=r.getAttribute("position"),s=new Float32Array(3*i.count);r.setAttribute("color",new bi(s,3)),this.add(new os(r,this.material)),this.update()}dispose(){this.children[0].geometry.dispose(),this.children[0].material.dispose()}update(){const t=this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{const e=t.geometry.getAttribute("color");zf.copy(this.light.color),Gf.copy(this.light.groundColor);for(let t=0,n=e.count;t<n;t++){const r=t<n/2?zf:Gf;e.setXYZ(t,r.r,r.g,r.b)}e.needsUpdate=!0}t.lookAt(Of.setFromMatrixPosition(this.light.matrixWorld).negate())}}exports.HemisphereLightHelper=Hf;class Uf extends pu{constructor(t=10,e=10,n=4473924,r=8947848){n=new xi(n),r=new xi(r);const i=e/2,s=t/e,o=t/2,a=[],l=[];for(let h=0,u=0,p=-o;h<=e;h++,p+=s){a.push(-o,0,p,o,0,p),a.push(p,0,-o,p,0,o);const t=h===i?n:r;t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3}const c=new ki;c.setAttribute("position",new Ci(a,3)),c.setAttribute("color",new Ci(l,3)),super(c,new ru({vertexColors:!0,toneMapped:!1})),this.type="GridHelper"}}exports.GridHelper=Uf;class kf extends pu{constructor(t=10,e=16,n=8,r=64,i=4473924,s=8947848){i=new xi(i),s=new xi(s);const o=[],a=[];for(let c=0;c<=e;c++){const n=c/e*(2*Math.PI),r=Math.sin(n)*t,l=Math.cos(n)*t;o.push(0,0,0),o.push(r,0,l);const h=1&c?i:s;a.push(h.r,h.g,h.b),a.push(h.r,h.g,h.b)}for(let c=0;c<=n;c++){const e=1&c?i:s,l=t-t/n*c;for(let t=0;t<r;t++){let n=t/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l;o.push(i,0,s),a.push(e.r,e.g,e.b),n=(t+1)/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l,o.push(i,0,s),a.push(e.r,e.g,e.b)}}const l=new ki;l.setAttribute("position",new Ci(o,3)),l.setAttribute("color",new Ci(a,3)),super(l,new ru({vertexColors:!0,toneMapped:!1})),this.type="PolarGridHelper"}}exports.PolarGridHelper=kf;const Vf=new Yn,Wf=new Yn,jf=new Yn;class qf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n,void 0===e&&(e=1);let r=new ki;r.setAttribute("position",new Ci([-e,e,0,e,e,0,e,-e,0,-e,-e,0,-e,e,0],3));const i=new ru({fog:!1,toneMapped:!1});this.lightPlane=new cu(r,i),this.add(this.lightPlane),(r=new ki).setAttribute("position",new Ci([0,0,0,0,0,1],3)),this.targetLine=new cu(r,i),this.add(this.targetLine),this.update()}dispose(){this.lightPlane.geometry.dispose(),this.lightPlane.material.dispose(),this.targetLine.geometry.dispose(),this.targetLine.material.dispose()}update(){Vf.setFromMatrixPosition(this.light.matrixWorld),Wf.setFromMatrixPosition(this.light.target.matrixWorld),jf.subVectors(Wf,Vf),this.lightPlane.lookAt(Wf),void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color)),this.targetLine.lookAt(Wf),this.targetLine.scale.z=jf.length()}}exports.DirectionalLightHelper=qf;const Xf=new Yn,Yf=new gs;class Zf extends pu{constructor(t){const e=new ki,n=new ru({color:16777215,vertexColors:!0,toneMapped:!1}),r=[],i=[],s={},o=new xi(16755200),a=new xi(16711680),l=new xi(43775),c=new xi(16777215),h=new xi(3355443);function u(t,e,n){p(t,n),p(e,n)}function p(t,e){r.push(0,0,0),i.push(e.r,e.g,e.b),void 0===s[t]&&(s[t]=[]),s[t].push(r.length/3-1)}u("n1","n2",o),u("n2","n4",o),u("n4","n3",o),u("n3","n1",o),u("f1","f2",o),u("f2","f4",o),u("f4","f3",o),u("f3","f1",o),u("n1","f1",o),u("n2","f2",o),u("n3","f3",o),u("n4","f4",o),u("p","n1",a),u("p","n2",a),u("p","n3",a),u("p","n4",a),u("u1","u2",l),u("u2","u3",l),u("u3","u1",l),u("c","t",c),u("p","c",h),u("cn1","cn2",h),u("cn3","cn4",h),u("cf1","cf2",h),u("cf3","cf4",h),e.setAttribute("position",new Ci(r,3)),e.setAttribute("color",new Ci(i,3)),super(e,n),this.type="CameraHelper",this.camera=t,this.camera.updateProjectionMatrix&&this.camera.updateProjectionMatrix(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.pointMap=s,this.update()}update(){const t=this.geometry,e=this.pointMap;Yf.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse),Jf("c",e,t,Yf,0,0,-1),Jf("t",e,t,Yf,0,0,1),Jf("n1",e,t,Yf,-1,-1,-1),Jf("n2",e,t,Yf,1,-1,-1),Jf("n3",e,t,Yf,-1,1,-1),Jf("n4",e,t,Yf,1,1,-1),Jf("f1",e,t,Yf,-1,-1,1),Jf("f2",e,t,Yf,1,-1,1),Jf("f3",e,t,Yf,-1,1,1),Jf("f4",e,t,Yf,1,1,1),Jf("u1",e,t,Yf,.7,1.1,-1),Jf("u2",e,t,Yf,-.7,1.1,-1),Jf("u3",e,t,Yf,0,2,-1),Jf("cf1",e,t,Yf,-1,0,1),Jf("cf2",e,t,Yf,1,0,1),Jf("cf3",e,t,Yf,0,-1,1),Jf("cf4",e,t,Yf,0,1,1),Jf("cn1",e,t,Yf,-1,0,-1),Jf("cn2",e,t,Yf,1,0,-1),Jf("cn3",e,t,Yf,0,-1,-1),Jf("cn4",e,t,Yf,0,1,-1),t.getAttribute("position").needsUpdate=!0}}function Jf(t,e,n,r,i,s,o){Xf.set(i,s,o).unproject(r);const a=e[t];if(void 0!==a){const t=n.getAttribute("position");for(let e=0,n=a.length;e<n;e++)t.setXYZ(a[e],Xf.x,Xf.y,Xf.z)}}exports.CameraHelper=Zf;const Qf=new Qn;class Kf extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new Float32Array(24),i=new ki;i.setIndex(new bi(n,1)),i.setAttribute("position",new bi(r,3)),super(i,new ru({color:e,toneMapped:!1})),this.object=t,this.type="BoxHelper",this.matrixAutoUpdate=!1,this.update()}update(t){if(void 0!==t&&console.warn("THREE.BoxHelper: .update() has no longer arguments."),void 0!==this.object&&Qf.setFromObject(this.object),Qf.isEmpty())return;const e=Qf.min,n=Qf.max,r=this.geometry.attributes.position,i=r.array;i[0]=n.x,i[1]=n.y,i[2]=n.z,i[3]=e.x,i[4]=n.y,i[5]=n.z,i[6]=e.x,i[7]=e.y,i[8]=n.z,i[9]=n.x,i[10]=e.y,i[11]=n.z,i[12]=n.x,i[13]=n.y,i[14]=e.z,i[15]=e.x,i[16]=n.y,i[17]=e.z,i[18]=e.x,i[19]=e.y,i[20]=e.z,i[21]=n.x,i[22]=e.y,i[23]=e.z,r.needsUpdate=!0,this.geometry.computeBoundingSphere()}setFromObject(t){return this.object=t,this.update(),this}copy(t){return pu.prototype.copy.call(this,t),this.object=t.object,this}}exports.BoxHelper=Kf;class $f extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new ki;r.setIndex(new bi(n,1)),r.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,-1,-1,1,-1,-1,-1,-1,1,-1,-1],3)),super(r,new ru({color:e,toneMapped:!1})),this.box=t,this.type="Box3Helper",this.geometry.computeBoundingSphere()}updateMatrixWorld(t){const e=this.box;e.isEmpty()||(e.getCenter(this.position),e.getSize(this.scale),this.scale.multiplyScalar(.5),super.updateMatrixWorld(t))}}exports.Box3Helper=$f;class tg extends cu{constructor(t,e=1,n=16776960){const r=n,i=new ki;i.setAttribute("position",new Ci([1,-1,1,-1,1,1,-1,-1,1,1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,1,0,0,1,0,0,0],3)),i.computeBoundingSphere(),super(i,new ru({color:r,toneMapped:!1})),this.type="PlaneHelper",this.plane=t,this.size=e;const s=new ki;s.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,1,1,-1,-1,1,1,-1,1],3)),s.computeBoundingSphere(),this.add(new os(s,new vi({color:r,opacity:.2,transparent:!0,depthWrite:!1,toneMapped:!1})))}updateMatrixWorld(t){let e=-this.plane.constant;Math.abs(e)<1e-8&&(e=1e-8),this.scale.set(.5*this.size,.5*this.size,e),this.children[0].material.side=e<0?p:u,this.lookAt(this.plane.normal),super.updateMatrixWorld(t)}}exports.PlaneHelper=tg;const eg=new Yn;let ng,rg;class ig extends Xr{constructor(t=new Yn(0,0,1),e=new Yn(0,0,0),n=1,r=16776960,i=.2*n,s=.2*i){super(),this.type="ArrowHelper",void 0===ng&&((ng=new ki).setAttribute("position",new Ci([0,0,0,0,1,0],3)),(rg=new Eu(0,.5,1,5,1)).translate(0,-.5,0)),this.position.copy(e),this.line=new cu(ng,new ru({color:r,toneMapped:!1})),this.line.matrixAutoUpdate=!1,this.add(this.line),this.cone=new os(rg,new vi({color:r,toneMapped:!1})),this.cone.matrixAutoUpdate=!1,this.add(this.cone),this.setDirection(t),this.setLength(n,i,s)}setDirection(t){if(t.y>.99999)this.quaternion.set(0,0,0,1);else if(t.y<-.99999)this.quaternion.set(1,0,0,0);else{eg.set(t.z,0,-t.x).normalize();const e=Math.acos(t.y);this.quaternion.setFromAxisAngle(eg,e)}}setLength(t,e=.2*t,n=.2*e){this.line.scale.set(1,Math.max(1e-4,t-e),1),this.line.updateMatrix(),this.cone.scale.set(n,e,n),this.cone.position.y=t,this.cone.updateMatrix()}setColor(t){this.line.material.color.set(t),this.cone.material.color.set(t)}copy(t){return super.copy(t,!1),this.line.copy(t.line),this.cone.copy(t.cone),this}}exports.ArrowHelper=ig;class sg extends pu{constructor(t=1){const e=[0,0,0,t,0,0,0,0,0,0,t,0,0,0,0,0,0,t],n=new ki;n.setAttribute("position",new Ci(e,3)),n.setAttribute("color",new Ci([1,0,0,1,.6,0,0,1,0,.6,1,0,0,0,1,0,.6,1],3)),super(n,new ru({vertexColors:!0,toneMapped:!1})),this.type="AxesHelper"}}exports.AxesHelper=sg;const og=new Float32Array(1),ag=new Int32Array(og.buffer),lg={toHalfFloat:function(t){og[0]=t;const e=ag[0];let n=e>>16&32768,r=e>>12&2047;const i=e>>23&255;return i<103?n:i>142?(n|=31744,n|=(255==i?0:1)&&8388607&e):i<113?n|=((r|=2048)>>114-i)+(r>>113-i&1):(n|=i-112<<10|r>>1,n+=1&r)}};exports.DataUtils=lg;const cg=4,hg=8,ug=Math.pow(2,hg),pg=[.125,.215,.35,.446,.526,.582],dg=hg-cg+1+pg.length,mg=20,fg={[Xe]:0,[Ye]:1,[Je]:2,[Ke]:3,[$e]:4,[tn]:5,[Ze]:6},gg=new vi({side:p,depthWrite:!1,depthTest:!1}),xg=new os(new cs,gg),vg=new lm,{_lodPlanes:yg,_sizeLods:_g,_sigmas:bg}=Cg(),wg=new xi;let Mg=null;const Sg=(1+Math.sqrt(5))/2,Tg=1/Sg,Eg=[new Yn(1,1,1),new Yn(-1,1,1),new Yn(1,1,-1),new Yn(-1,1,-1),new Yn(0,Sg,Tg),new Yn(0,Sg,-Tg),new Yn(Tg,0,Sg),new Yn(-Tg,0,Sg),new Yn(Sg,Tg,0),new Yn(-Sg,Tg,0)];function Ag(t){const e=Math.max(t.r,t.g,t.b),n=Math.min(Math.max(Math.ceil(Math.log2(e)),-128),127);return t.multiplyScalar(Math.pow(2,-n)),(n+128)/255}class Lg{constructor(t){this._renderer=t,this._pingPongRenderTarget=null,this._blurMaterial=Ig(mg),this._equirectShader=null,this._cubemapShader=null,this._compileMaterial(this._blurMaterial)}fromScene(t,e=0,n=.1,r=100){Mg=this._renderer.getRenderTarget();const i=this._allocateTargets();return this._sceneToCubeUV(t,n,r,i),e>0&&this._blur(i,0,0,e),this._applyPMREM(i),this._cleanup(i),i}fromEquirectangular(t){return this._fromTexture(t)}fromCubemap(t){return this._fromTexture(t)}compileCubemapShader(){null===this._cubemapShader&&(this._cubemapShader=Ng(),this._compileMaterial(this._cubemapShader))}compileEquirectangularShader(){null===this._equirectShader&&(this._equirectShader=Bg(),this._compileMaterial(this._equirectShader))}dispose(){this._blurMaterial.dispose(),null!==this._cubemapShader&&this._cubemapShader.dispose(),null!==this._equirectShader&&this._equirectShader.dispose();for(let t=0;t<yg.length;t++)yg[t].dispose()}_cleanup(t){this._pingPongRenderTarget.dispose(),this._renderer.setRenderTarget(Mg),t.scissorTest=!1,Dg(t,0,0,t.width,t.height)}_fromTexture(t){Mg=this._renderer.getRenderTarget();const e=this._allocateTargets(t);return this._textureToCubeUV(t,e),this._applyPMREM(e),this._cleanup(e),e}_allocateTargets(t){const e={magFilter:ut,minFilter:ut,generateMipmaps:!1,type:bt,format:zt,encoding:Rg(t)?t.encoding:Je,depthBuffer:!1},n=Pg(e);return n.depthBuffer=!t,this._pingPongRenderTarget=Pg(e),n}_compileMaterial(t){const e=new os(yg[0],t);this._renderer.compile(e,vg)}_sceneToCubeUV(t,e,n,r){const i=new xs(90,1,e,n),s=[1,-1,1,1,1,1],o=[1,1,1,-1,-1,-1],a=this._renderer,l=a.autoClear,c=a.outputEncoding,h=a.toneMapping;a.getClearColor(wg),a.toneMapping=Z,a.outputEncoding=Xe,a.autoClear=!1;let u=!1;const p=t.background;if(p){if(p.isColor){gg.color.copy(p).convertSRGBToLinear(),t.background=null;const e=Ag(gg.color);gg.opacity=e,u=!0}}else{gg.color.copy(wg).convertSRGBToLinear();const t=Ag(gg.color);gg.opacity=t,u=!0}for(let d=0;d<6;d++){const e=d%3;0==e?(i.up.set(0,s[d],0),i.lookAt(o[d],0,0)):1==e?(i.up.set(0,0,s[d]),i.lookAt(0,o[d],0)):(i.up.set(0,s[d],0),i.lookAt(0,0,o[d])),Dg(r,e*ug,d>2?ug:0,ug,ug),a.setRenderTarget(r),u&&a.render(xg,i),a.render(t,i)}a.toneMapping=h,a.outputEncoding=c,a.autoClear=l}_textureToCubeUV(t,e){const n=this._renderer;t.isCubeTexture?null==this._cubemapShader&&(this._cubemapShader=Ng()):null==this._equirectShader&&(this._equirectShader=Bg());const r=t.isCubeTexture?this._cubemapShader:this._equirectShader,i=new os(yg[0],r),s=r.uniforms;s.envMap.value=t,t.isCubeTexture||s.texelSize.value.set(1/t.image.width,1/t.image.height),s.inputEncoding.value=fg[t.encoding],s.outputEncoding.value=fg[e.texture.encoding],Dg(e,0,0,3*ug,2*ug),n.setRenderTarget(e),n.render(i,vg)}_applyPMREM(t){const e=this._renderer,n=e.autoClear;e.autoClear=!1;for(let r=1;r<dg;r++){const e=Math.sqrt(bg[r]*bg[r]-bg[r-1]*bg[r-1]),n=Eg[(r-1)%Eg.length];this._blur(t,r-1,r,e,n)}e.autoClear=n}_blur(t,e,n,r,i){const s=this._pingPongRenderTarget;this._halfBlur(t,s,e,n,r,"latitudinal",i),this._halfBlur(s,t,n,n,r,"longitudinal",i)}_halfBlur(t,e,n,r,i,s,o){const a=this._renderer,l=this._blurMaterial;"latitudinal"!==s&&"longitudinal"!==s&&console.error("blur direction must be either latitudinal or longitudinal!");const c=new os(yg[r],l),h=l.uniforms,u=_g[n]-1,p=isFinite(i)?Math.PI/(2*u):2*Math.PI/(2*mg-1),d=i/p,m=isFinite(i)?1+Math.floor(3*d):mg;m>mg&&console.warn(`sigmaRadians, ${i}, is too large and will clip, as it requested ${m} samples when the maximum is set to ${mg}`);const f=[];let g=0;for(let v=0;v<mg;++v){const t=v/d,e=Math.exp(-t*t/2);f.push(e),0==v?g+=e:v<m&&(g+=2*e)}for(let v=0;v<f.length;v++)f[v]=f[v]/g;h.envMap.value=t.texture,h.samples.value=m,h.weights.value=f,h.latitudinal.value="latitudinal"===s,o&&(h.poleAxis.value=o),h.dTheta.value=p,h.mipInt.value=hg-n,h.inputEncoding.value=fg[t.texture.encoding],h.outputEncoding.value=fg[t.texture.encoding];const x=_g[r];Dg(e,3*Math.max(0,ug-2*x),(0===r?0:2*ug)+2*x*(r>hg-cg?r-hg+cg:0),3*x,2*x),a.setRenderTarget(e),a.render(c,vg)}}function Rg(t){return void 0!==t&&t.type===bt&&(t.encoding===Xe||t.encoding===Ye||t.encoding===Ze)}function Cg(){const t=[],e=[],n=[];let r=hg;for(let i=0;i<dg;i++){const s=Math.pow(2,r);e.push(s);let o=1/s;i>hg-cg?o=pg[i-hg+cg-1]:0==i&&(o=0),n.push(o);const a=1/(s-1),l=-a/2,c=1+a/2,h=[l,l,c,l,c,c,l,l,c,c,l,c],u=6,p=6,d=3,m=2,f=1,g=new Float32Array(d*p*u),x=new Float32Array(m*p*u),v=new Float32Array(f*p*u);for(let t=0;t<u;t++){const e=t%3*2/3-1,n=t>2?0:-1,r=[e,n,0,e+2/3,n,0,e+2/3,n+1,0,e,n,0,e+2/3,n+1,0,e,n+1,0];g.set(r,d*p*t),x.set(h,m*p*t);const i=[t,t,t,t,t,t];v.set(i,f*p*t)}const y=new ki;y.setAttribute("position",new bi(g,d)),y.setAttribute("uv",new bi(x,m)),y.setAttribute("faceIndex",new bi(v,f)),t.push(y),r>cg&&r--}return{_lodPlanes:t,_sizeLods:e,_sigmas:n}}function Pg(t){const e=new jn(3*ug,3*ug,t);return e.texture.mapping=ot,e.texture.name="PMREM.cubeUv",e.scissorTest=!0,e}function Dg(t,e,n,r,i){t.viewport.set(e,n,r,i),t.scissor.set(e,n,r,i)}function Ig(t){const e=new Float32Array(t),n=new Yn(0,1,0);return new Np({name:"SphericalGaussianBlur",defines:{n:t},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:e},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:n},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t${Og()}\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include <cube_uv_reflection_fragment>\n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Bg(){const t=new On(1,1);return new Np({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null},texelSize:{value:t},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform vec2 texelSize;\n\n\t\t\t${Og()}\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tvec2 f = fract( uv / texelSize - 0.5 );\n\t\t\t\tuv -= f * texelSize;\n\t\t\t\tvec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x += texelSize.x;\n\t\t\t\tvec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.y += texelSize.y;\n\t\t\t\tvec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x -= texelSize.x;\n\t\t\t\tvec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\n\t\t\t\tvec3 tm = mix( tl, tr, f.x );\n\t\t\t\tvec3 bm = mix( bl, br, f.x );\n\t\t\t\tgl_FragColor.rgb = mix( tm, bm, f.y );\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Ng(){return new Np({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\t${Og()}\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Fg(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute vec3 position;\n\t\tattribute vec2 uv;\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Og(){return"\n\n\t\tuniform int inputEncoding;\n\t\tuniform int outputEncoding;\n\n\t\t#include <encodings_pars_fragment>\n\n\t\tvec4 inputTexelToLinear( vec4 value ) {\n\n\t\t\tif ( inputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( inputEncoding == 1 ) {\n\n\t\t\t\treturn sRGBToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 2 ) {\n\n\t\t\t\treturn RGBEToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 3 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 7.0 );\n\n\t\t\t} else if ( inputEncoding == 4 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 16.0 );\n\n\t\t\t} else if ( inputEncoding == 5 ) {\n\n\t\t\t\treturn RGBDToLinear( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn GammaToLinear( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 linearToOutputTexel( vec4 value ) {\n\n\t\t\tif ( outputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( outputEncoding == 1 ) {\n\n\t\t\t\treturn LinearTosRGB( value );\n\n\t\t\t} else if ( outputEncoding == 2 ) {\n\n\t\t\t\treturn LinearToRGBE( value );\n\n\t\t\t} else if ( outputEncoding == 3 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 7.0 );\n\n\t\t\t} else if ( outputEncoding == 4 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 16.0 );\n\n\t\t\t} else if ( outputEncoding == 5 ) {\n\n\t\t\t\treturn LinearToRGBD( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn LinearToGamma( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 envMapTexelToLinear( vec4 color ) {\n\n\t\t\treturn inputTexelToLinear( color );\n\n\t\t}\n\t"}exports.PMREMGenerator=Lg;const zg=0;exports.LineStrip=0;const Gg=1;exports.LinePieces=1;const Hg=0;exports.NoColors=0;const Ug=1;exports.FaceColors=1;const kg=2;function Vg(t){return console.warn("THREE.MeshFaceMaterial has been removed. Use an Array instead."),t}function Wg(t=[]){return console.warn("THREE.MultiMaterial has been removed. Use an Array instead."),t.isMultiMaterial=!0,t.materials=t,t.clone=function(){return t.slice()},t}function jg(t,e){return console.warn("THREE.PointCloud has been renamed to THREE.Points."),new yu(t,e)}function qg(t){return console.warn("THREE.Particle has been renamed to THREE.Sprite."),new Oh(t)}function Xg(t,e){return console.warn("THREE.ParticleSystem has been renamed to THREE.Points."),new yu(t,e)}function Yg(t){return console.warn("THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Zg(t){return console.warn("THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Jg(t){return console.warn("THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Qg(t,e,n){return console.warn("THREE.Vertex has been removed. Use THREE.Vector3 instead."),new Yn(t,e,n)}function Kg(t,e){return console.warn("THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead."),new bi(t,e).setUsage(Mn)}function $g(t,e){return console.warn("THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead."),new wi(t,e)}function tx(t,e){return console.warn("THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead."),new Mi(t,e)}function ex(t,e){return console.warn("THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead."),new Si(t,e)}function nx(t,e){return console.warn("THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead."),new Ti(t,e)}function rx(t,e){return console.warn("THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead."),new Ei(t,e)}function ix(t,e){return console.warn("THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead."),new Ai(t,e)}function sx(t,e){return console.warn("THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead."),new Li(t,e)}function ox(t,e){return console.warn("THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead."),new Ci(t,e)}function ax(t,e){return console.warn("THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead."),new Pi(t,e)}function lx(t){return console.warn("THREE.AxisHelper has been renamed to THREE.AxesHelper."),new sg(t)}function cx(t,e){return console.warn("THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead."),new Kf(t,e)}function hx(t,e){return console.warn("THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead."),new pu(new Bu(t.geometry),new ru({color:void 0!==e?e:16777215}))}function ux(t,e){return console.warn("THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead."),new pu(new Dp(t.geometry),new ru({color:void 0!==e?e:16777215}))}function px(t){return console.warn("THREE.XHRLoader has been renamed to THREE.FileLoader."),new pd(t)}function dx(t){return console.warn("THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader."),new xd(t)}function mx(t,e,n){return console.warn("THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options )."),new ws(t,n)}function fx(){console.error("THREE.CanvasRenderer has been removed")}function gx(){console.error("THREE.JSONLoader has been removed.")}exports.VertexColors=2,yd.create=function(t,e){return console.log("THREE.Curve.create() has been deprecated"),t.prototype=Object.create(yd.prototype),t.prototype.constructor=t,t.prototype.getPoint=e,t},Xd.prototype.fromPoints=function(t){return console.warn("THREE.Path: .fromPoints() has been renamed to .setFromPoints()."),this.setFromPoints(t)},Uf.prototype.setColors=function(){console.error("THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.")},Bf.prototype.update=function(){console.error("THREE.SkeletonHelper: update() no longer needs to be called.")},hd.prototype.extractUrlBase=function(t){return console.warn("THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead."),gm.extractUrlBase(t)},hd.Handlers={add:function(){console.error("THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.")},get:function(){console.error("THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.")}},Sf.prototype.center=function(t){return console.warn("THREE.Box2: .center() has been renamed to .getCenter()."),this.getCenter(t)},Sf.prototype.empty=function(){return console.warn("THREE.Box2: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Sf.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Sf.prototype.size=function(t){return console.warn("THREE.Box2: .size() has been renamed to .getSize()."),this.getSize(t)},Qn.prototype.center=function(t){return console.warn("THREE.Box3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Qn.prototype.empty=function(){return console.warn("THREE.Box3: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Qn.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Qn.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},Qn.prototype.size=function(t){return console.warn("THREE.Box3: .size() has been renamed to .getSize()."),this.getSize(t)},dr.prototype.empty=function(){return console.warn("THREE.Sphere: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Es.prototype.setFromMatrix=function(t){return console.warn("THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix()."),this.setFromProjectionMatrix(t)},Af.prototype.center=function(t){return console.warn("THREE.Line3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Fn.random16=function(){return console.warn("THREE.Math: .random16() has been deprecated. Use Math.random() instead."),Math.random()},Fn.nearestPowerOfTwo=function(t){return console.warn("THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo()."),Fn.floorPowerOfTwo(t)},Fn.nextPowerOfTwo=function(t){return console.warn("THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo()."),Fn.ceilPowerOfTwo(t)},zn.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},zn.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix3: .multiplyVector3Array() has been removed.")},zn.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.applyToVector3Array=function(){console.error("THREE.Matrix3: .applyToVector3Array() has been removed.")},zn.prototype.getInverse=function(t){return console.warn("THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},wr.prototype.extractPosition=function(t){return console.warn("THREE.Matrix4: .extractPosition() has been renamed to .copyPosition()."),this.copyPosition(t)},wr.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},wr.prototype.getPosition=function(){return console.warn("THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead."),(new Yn).setFromMatrixColumn(this,3)},wr.prototype.setRotationFromQuaternion=function(t){return console.warn("THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion()."),this.makeRotationFromQuaternion(t)},wr.prototype.multiplyToArray=function(){console.warn("THREE.Matrix4: .multiplyToArray() has been removed.")},wr.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector4=function(t){return console.warn("THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix4: .multiplyVector3Array() has been removed.")},wr.prototype.rotateAxis=function(t){console.warn("THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead."),t.transformDirection(this)},wr.prototype.crossVector=function(t){return console.warn("THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.translate=function(){console.error("THREE.Matrix4: .translate() has been removed.")},wr.prototype.rotateX=function(){console.error("THREE.Matrix4: .rotateX() has been removed.")},wr.prototype.rotateY=function(){console.error("THREE.Matrix4: .rotateY() has been removed.")},wr.prototype.rotateZ=function(){console.error("THREE.Matrix4: .rotateZ() has been removed.")},wr.prototype.rotateByAxis=function(){console.error("THREE.Matrix4: .rotateByAxis() has been removed.")},wr.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.applyToVector3Array=function(){console.error("THREE.Matrix4: .applyToVector3Array() has been removed.")},wr.prototype.makeFrustum=function(t,e,n,r,i,s){return console.warn("THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead."),this.makePerspective(t,e,r,n,i,s)},wr.prototype.getInverse=function(t){return console.warn("THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},Qr.prototype.isIntersectionLine=function(t){return console.warn("THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine()."),this.intersectsLine(t)},Xn.prototype.multiplyVector3=function(t){return console.warn("THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead."),t.applyQuaternion(this)},Xn.prototype.inverse=function(){return console.warn("THREE.Quaternion: .inverse() has been renamed to invert()."),this.invert()},br.prototype.isIntersectionBox=function(t){return console.warn("THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},br.prototype.isIntersectionPlane=function(t){return console.warn("THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane()."),this.intersectsPlane(t)},br.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},li.prototype.area=function(){return console.warn("THREE.Triangle: .area() has been renamed to .getArea()."),this.getArea()},li.prototype.barycoordFromPoint=function(t,e){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),this.getBarycoord(t,e)},li.prototype.midpoint=function(t){return console.warn("THREE.Triangle: .midpoint() has been renamed to .getMidpoint()."),this.getMidpoint(t)},li.prototypenormal=function(t){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),this.getNormal(t)},li.prototype.plane=function(t){return console.warn("THREE.Triangle: .plane() has been renamed to .getPlane()."),this.getPlane(t)},li.barycoordFromPoint=function(t,e,n,r,i){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),li.getBarycoord(t,e,n,r,i)},li.normal=function(t,e,n,r){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),li.getNormal(t,e,n,r)},Yd.prototype.extractAllPoints=function(t){return console.warn("THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead."),this.extractPoints(t)},Yd.prototype.extrude=function(t){return console.warn("THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead."),new gp(this,t)},Yd.prototype.makeGeometry=function(t){return console.warn("THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead."),new Sp(this,t)},On.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},On.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},On.prototype.lengthManhattan=function(){return console.warn("THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Yn.prototype.setEulerFromRotationMatrix=function(){console.error("THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.")},Yn.prototype.setEulerFromQuaternion=function(){console.error("THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.")},Yn.prototype.getPositionFromMatrix=function(t){return console.warn("THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition()."),this.setFromMatrixPosition(t)},Yn.prototype.getScaleFromMatrix=function(t){return console.warn("THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale()."),this.setFromMatrixScale(t)},Yn.prototype.getColumnFromMatrix=function(t,e){return console.warn("THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn()."),this.setFromMatrixColumn(e,t)},Yn.prototype.applyProjection=function(t){return console.warn("THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead."),this.applyMatrix4(t)},Yn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Yn.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},Yn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Wn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Wn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Xr.prototype.getChildByName=function(t){return console.warn("THREE.Object3D: .getChildByName() has been renamed to .getObjectByName()."),this.getObjectByName(t)},Xr.prototype.renderDepth=function(){console.warn("THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.")},Xr.prototype.translate=function(t,e){return console.warn("THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead."),this.translateOnAxis(e,t)},Xr.prototype.getWorldRotation=function(){console.error("THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.")},Xr.prototype.applyMatrix=function(t){return console.warn("THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(Xr.prototype,{eulerOrder:{get:function(){return console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order},set:function(t){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order=t}},useQuaternion:{get:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")},set:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")}}}),os.prototype.setDrawMode=function(){console.error("THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")},Object.defineProperties(os.prototype,{drawMode:{get:function(){return console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode."),0},set:function(){console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")}}}),Object.defineProperties(Uh.prototype,{objects:{get:function(){return console.warn("THREE.LOD: .objects has been renamed to .levels."),this.levels}}}),Object.defineProperty(Qh.prototype,"useVertexTexture",{get:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")},set:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")}}),Xh.prototype.initBones=function(){console.error("THREE.SkinnedMesh: initBones() has been removed.")},Object.defineProperty(yd.prototype,"__arcLengthDivisions",{get:function(){return console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions},set:function(t){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions=t}}),xs.prototype.setLens=function(t,e){console.warn("THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup."),void 0!==e&&(this.filmGauge=e),this.setFocalLength(t)},Object.defineProperties(Zd.prototype,{onlyShadow:{set:function(){console.warn("THREE.Light: .onlyShadow has been removed.")}},shadowCameraFov:{set:function(t){console.warn("THREE.Light: .shadowCameraFov is now .shadow.camera.fov."),this.shadow.camera.fov=t}},shadowCameraLeft:{set:function(t){console.warn("THREE.Light: .shadowCameraLeft is now .shadow.camera.left."),this.shadow.camera.left=t}},shadowCameraRight:{set:function(t){console.warn("THREE.Light: .shadowCameraRight is now .shadow.camera.right."),this.shadow.camera.right=t}},shadowCameraTop:{set:function(t){console.warn("THREE.Light: .shadowCameraTop is now .shadow.camera.top."),this.shadow.camera.top=t}},shadowCameraBottom:{set:function(t){console.warn("THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom."),this.shadow.camera.bottom=t}},shadowCameraNear:{set:function(t){console.warn("THREE.Light: .shadowCameraNear is now .shadow.camera.near."),this.shadow.camera.near=t}},shadowCameraFar:{set:function(t){console.warn("THREE.Light: .shadowCameraFar is now .shadow.camera.far."),this.shadow.camera.far=t}},shadowCameraVisible:{set:function(){console.warn("THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.")}},shadowBias:{set:function(t){console.warn("THREE.Light: .shadowBias is now .shadow.bias."),this.shadow.bias=t}},shadowDarkness:{set:function(){console.warn("THREE.Light: .shadowDarkness has been removed.")}},shadowMapWidth:{set:function(t){console.warn("THREE.Light: .shadowMapWidth is now .shadow.mapSize.width."),this.shadow.mapSize.width=t}},shadowMapHeight:{set:function(t){console.warn("THREE.Light: .shadowMapHeight is now .shadow.mapSize.height."),this.shadow.mapSize.height=t}}}),Object.defineProperties(bi.prototype,{length:{get:function(){return console.warn("THREE.BufferAttribute: .length has been deprecated. Use .count instead."),this.array.length}},dynamic:{get:function(){return console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.usage===Mn},set:function(){console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.setUsage(Mn)}}}),bi.prototype.setDynamic=function(t){return console.warn("THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},bi.prototype.copyIndicesArray=function(){console.error("THREE.BufferAttribute: .copyIndicesArray() has been removed.")},bi.prototype.setArray=function(){console.error("THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},ki.prototype.addIndex=function(t){console.warn("THREE.BufferGeometry: .addIndex() has been renamed to .setIndex()."),this.setIndex(t)},ki.prototype.addAttribute=function(t,e){return console.warn("THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute()."),e&&e.isBufferAttribute||e&&e.isInterleavedBufferAttribute?"index"===t?(console.warn("THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute."),this.setIndex(e),this):this.setAttribute(t,e):(console.warn("THREE.BufferGeometry: .addAttribute() now expects ( name, attribute )."),this.setAttribute(t,new bi(arguments[1],arguments[2])))},ki.prototype.addDrawCall=function(t,e,n){void 0!==n&&console.warn("THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset."),console.warn("THREE.BufferGeometry: .addDrawCall() is now .addGroup()."),this.addGroup(t,e)},ki.prototype.clearDrawCalls=function(){console.warn("THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups()."),this.clearGroups()},ki.prototype.computeOffsets=function(){console.warn("THREE.BufferGeometry: .computeOffsets() has been removed.")},ki.prototype.removeAttribute=function(t){return console.warn("THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute()."),this.deleteAttribute(t)},ki.prototype.applyMatrix=function(t){return console.warn("THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(ki.prototype,{drawcalls:{get:function(){return console.error("THREE.BufferGeometry: .drawcalls has been renamed to .groups."),this.groups}},offsets:{get:function(){return console.warn("THREE.BufferGeometry: .offsets has been renamed to .groups."),this.groups}}}),Object.defineProperties(xm.prototype,{maxInstancedCount:{get:function(){return console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount},set:function(t){console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount=t}}}),Object.defineProperties(vf.prototype,{linePrecision:{get:function(){return console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold},set:function(t){console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold=t}}}),Object.defineProperties(_h.prototype,{dynamic:{get:function(){return console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.usage===Mn},set:function(t){console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.setUsage(t)}}}),_h.prototype.setDynamic=function(t){return console.warn("THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},_h.prototype.setArray=function(){console.error("THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},gp.prototype.getArrays=function(){console.error("THREE.ExtrudeGeometry: .getArrays() has been removed.")},gp.prototype.addShapeList=function(){console.error("THREE.ExtrudeGeometry: .addShapeList() has been removed.")},gp.prototype.addShape=function(){console.error("THREE.ExtrudeGeometry: .addShape() has been removed.")},yh.prototype.dispose=function(){console.error("THREE.Scene: .dispose() has been removed.")},Object.defineProperties(ff.prototype,{dynamic:{set:function(){console.warn("THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.")}},onUpdate:{value:function(){return console.warn("THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead."),this}}}),Object.defineProperties(hi.prototype,{wrapAround:{get:function(){console.warn("THREE.Material: .wrapAround has been removed.")},set:function(){console.warn("THREE.Material: .wrapAround has been removed.")}},overdraw:{get:function(){console.warn("THREE.Material: .overdraw has been removed.")},set:function(){console.warn("THREE.Material: .overdraw has been removed.")}},wrapRGB:{get:function(){return console.warn("THREE.Material: .wrapRGB has been removed."),new xi}},shading:{get:function(){console.error("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")},set:function(t){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===t}},stencilMask:{get:function(){return console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask},set:function(t){console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask=t}}}),Object.defineProperties(zp.prototype,{metal:{get:function(){return console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead."),!1},set:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead")}}}),Object.defineProperties(Op.prototype,{transparency:{get:function(){return console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission},set:function(t){console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission=t}}}),Object.defineProperties(fs.prototype,{derivatives:{get:function(){return console.warn("THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives},set:function(t){console.warn("THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives=t}}}),fh.prototype.clearTarget=function(t,e,n,r){console.warn("THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead."),this.setRenderTarget(t),this.clear(e,n,r)},fh.prototype.animate=function(t){console.warn("THREE.WebGLRenderer: .animate() is now .setAnimationLoop()."),this.setAnimationLoop(t)},fh.prototype.getCurrentRenderTarget=function(){return console.warn("THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget()."),this.getRenderTarget()},fh.prototype.getMaxAnisotropy=function(){return console.warn("THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy()."),this.capabilities.getMaxAnisotropy()},fh.prototype.getPrecision=function(){return console.warn("THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision."),this.capabilities.precision},fh.prototype.resetGLState=function(){return console.warn("THREE.WebGLRenderer: .resetGLState() is now .state.reset()."),this.state.reset()},fh.prototype.supportsFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' )."),this.extensions.get("OES_texture_float")},fh.prototype.supportsHalfFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' )."),this.extensions.get("OES_texture_half_float")},fh.prototype.supportsStandardDerivatives=function(){return console.warn("THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' )."),this.extensions.get("OES_standard_derivatives")},fh.prototype.supportsCompressedTextureS3TC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' )."),this.extensions.get("WEBGL_compressed_texture_s3tc")},fh.prototype.supportsCompressedTexturePVRTC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' )."),this.extensions.get("WEBGL_compressed_texture_pvrtc")},fh.prototype.supportsBlendMinMax=function(){return console.warn("THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' )."),this.extensions.get("EXT_blend_minmax")},fh.prototype.supportsVertexTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures."),this.capabilities.vertexTextures},fh.prototype.supportsInstancedArrays=function(){return console.warn("THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' )."),this.extensions.get("ANGLE_instanced_arrays")},fh.prototype.enableScissorTest=function(t){console.warn("THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest()."),this.setScissorTest(t)},fh.prototype.initMaterial=function(){console.warn("THREE.WebGLRenderer: .initMaterial() has been removed.")},fh.prototype.addPrePlugin=function(){console.warn("THREE.WebGLRenderer: .addPrePlugin() has been removed.")},fh.prototype.addPostPlugin=function(){console.warn("THREE.WebGLRenderer: .addPostPlugin() has been removed.")},fh.prototype.updateShadowMap=function(){console.warn("THREE.WebGLRenderer: .updateShadowMap() has been removed.")},fh.prototype.setFaceCulling=function(){console.warn("THREE.WebGLRenderer: .setFaceCulling() has been removed.")},fh.prototype.allocTextureUnit=function(){console.warn("THREE.WebGLRenderer: .allocTextureUnit() has been removed.")},fh.prototype.setTexture=function(){console.warn("THREE.WebGLRenderer: .setTexture() has been removed.")},fh.prototype.setTexture2D=function(){console.warn("THREE.WebGLRenderer: .setTexture2D() has been removed.")},fh.prototype.setTextureCube=function(){console.warn("THREE.WebGLRenderer: .setTextureCube() has been removed.")},fh.prototype.getActiveMipMapLevel=function(){return console.warn("THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel()."),this.getActiveMipmapLevel()},Object.defineProperties(fh.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled."),this.shadowMap.enabled=t}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type."),this.shadowMap.type=t}},shadowMapCullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")}},context:{get:function(){return console.warn("THREE.WebGLRenderer: .context has been removed. Use .getContext() instead."),this.getContext()}},vr:{get:function(){return console.warn("THREE.WebGLRenderer: .vr has been renamed to .xr"),this.xr}},gammaInput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead."),!1},set:function(){console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.")}},gammaOutput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),!1},set:function(t){console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),this.outputEncoding=!0===t?Ye:Xe}},toneMappingWhitePoint:{get:function(){return console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed."),1},set:function(){console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.")}}}),Object.defineProperties(sh.prototype,{cullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")}},renderReverseSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")}},renderSingleSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")}}}),Object.defineProperties(jn.prototype,{wrapS:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS=t}},wrapT:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT=t}},magFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter=t}},minFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter=t}},anisotropy:{get:function(){return console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy},set:function(t){console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy=t}},offset:{get:function(){return console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset},set:function(t){console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset=t}},repeat:{get:function(){return console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat},set:function(t){console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat=t}},format:{get:function(){return console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format},set:function(t){console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format=t}},type:{get:function(){return console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type},set:function(t){console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type=t}},generateMipmaps:{get:function(){return console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps},set:function(t){console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps=t}}}),Object.defineProperties(jm.prototype,{load:{value:function(t){console.warn("THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.");const e=this;return(new Dm).load(t,function(t){e.setBuffer(t)}),this}},startTime:{set:function(){console.warn("THREE.Audio: .startTime is now .play( delay ).")}}}),Qm.prototype.getData=function(){return console.warn("THREE.AudioAnalyser: .getData() is now .getFrequencyData()."),this.getFrequencyData()},_s.prototype.updateCubeMap=function(t,e){return console.warn("THREE.CubeCamera: .updateCubeMap() is now .update()."),this.update(t,e)},_s.prototype.clear=function(t,e,n,r){return console.warn("THREE.CubeCamera: .clear() is now .renderTarget.clear()."),this.renderTarget.clear(t,e,n,r)},Hn.crossOrigin=void 0,Hn.loadTexture=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.");const i=new vd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadTextureCube=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.");const i=new gd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadCompressedTexture=function(){console.error("THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.")},Hn.loadCompressedTextureCube=function(){console.error("THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.")};const xx={createMultiMaterialObject:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},detach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},attach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")}};function vx(){console.error("THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js")}exports.SceneUtils=xx,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("register",{detail:{revision:"126"}})),"undefined"!=typeof window&&(window.__THREE__?console.warn("WARNING: Multiple instances of Three.js being imported."):window.__THREE__="126");
-},{}],"xTGv":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MapControls=exports.OrbitControls=void 0;var e=require("../../../build/three.module.js"),t=function(t,n){var o,a,i,r,c,s;void 0===n&&console.warn('THREE.OrbitControls: The second parameter "domElement" is now mandatory.'),n===document&&console.error('THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.'),this.object=t,this.domElement=n,this.enabled=!0,this.target=new e.Vector3,this.minDistance=0,this.maxDistance=1/0,this.minZoom=0,this.maxZoom=1/0,this.minPolarAngle=0,this.maxPolarAngle=Math.PI,this.minAzimuthAngle=-1/0,this.maxAzimuthAngle=1/0,this.enableDamping=!1,this.dampingFactor=.05,this.enableZoom=!0,this.zoomSpeed=1,this.enableRotate=!0,this.rotateSpeed=1,this.enablePan=!0,this.panSpeed=1,this.screenSpacePanning=!0,this.keyPanSpeed=7,this.autoRotate=!1,this.autoRotateSpeed=2,this.keys={LEFT:37,UP:38,RIGHT:39,BOTTOM:40},this.mouseButtons={LEFT:e.MOUSE.ROTATE,MIDDLE:e.MOUSE.DOLLY,RIGHT:e.MOUSE.PAN},this.touches={ONE:e.TOUCH.ROTATE,TWO:e.TOUCH.DOLLY_PAN},this.target0=this.target.clone(),this.position0=this.object.position.clone(),this.zoom0=this.object.zoom,this._domElementKeyEvents=null,this.getPolarAngle=function(){return E.phi},this.getAzimuthalAngle=function(){return E.theta},this.listenToKeyEvents=function(e){e.addEventListener("keydown",Q),this._domElementKeyEvents=e},this.saveState=function(){u.target0.copy(u.target),u.position0.copy(u.object.position),u.zoom0=u.object.zoom},this.reset=function(){u.target.copy(u.target0),u.object.position.copy(u.position0),u.object.zoom=u.zoom0,u.object.updateProjectionMatrix(),u.dispatchEvent(l),u.update(),d=h.NONE},this.update=(o=new e.Vector3,a=(new e.Quaternion).setFromUnitVectors(t.up,new e.Vector3(0,1,0)),i=a.clone().invert(),r=new e.Vector3,c=new e.Quaternion,s=2*Math.PI,function(){var e=u.object.position;o.copy(e).sub(u.target),o.applyQuaternion(a),E.setFromVector3(o),u.autoRotate&&d===h.NONE&&R(2*Math.PI/60/60*u.autoRotateSpeed),u.enableDamping?(E.theta+=f.theta*u.dampingFactor,E.phi+=f.phi*u.dampingFactor):(E.theta+=f.theta,E.phi+=f.phi);var t=u.minAzimuthAngle,n=u.maxAzimuthAngle;return isFinite(t)&&isFinite(n)&&(t<-Math.PI?t+=s:t>Math.PI&&(t-=s),n<-Math.PI?n+=s:n>Math.PI&&(n-=s),E.theta=t<=n?Math.max(t,Math.min(n,E.theta)):E.theta>(t+n)/2?Math.max(t,E.theta):Math.min(n,E.theta)),E.phi=Math.max(u.minPolarAngle,Math.min(u.maxPolarAngle,E.phi)),E.makeSafe(),E.radius*=O,E.radius=Math.max(u.minDistance,Math.min(u.maxDistance,E.radius)),!0===u.enableDamping?u.target.addScaledVector(g,u.dampingFactor):u.target.add(g),o.setFromSpherical(E),o.applyQuaternion(i),e.copy(u.target).add(o),u.object.lookAt(u.target),!0===u.enableDamping?(f.theta*=1-u.dampingFactor,f.phi*=1-u.dampingFactor,g.multiplyScalar(1-u.dampingFactor)):(f.set(0,0,0),g.set(0,0,0)),O=1,!!(v||r.distanceToSquared(u.object.position)>b||8*(1-c.dot(u.object.quaternion))>b)&&(u.dispatchEvent(l),r.copy(u.object.position),c.copy(u.object.quaternion),v=!1,!0)}),this.dispose=function(){u.domElement.removeEventListener("contextmenu",te),u.domElement.removeEventListener("pointerdown",B),u.domElement.removeEventListener("wheel",q),u.domElement.removeEventListener("touchstart",J),u.domElement.removeEventListener("touchend",ee),u.domElement.removeEventListener("touchmove",$),u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),null!==u._domElementKeyEvents&&u._domElementKeyEvents.removeEventListener("keydown",Q)};var u=this,l={type:"change"},m={type:"start"},p={type:"end"},h={NONE:-1,ROTATE:0,DOLLY:1,PAN:2,TOUCH_ROTATE:3,TOUCH_PAN:4,TOUCH_DOLLY_PAN:5,TOUCH_DOLLY_ROTATE:6},d=h.NONE,b=1e-6,E=new e.Spherical,f=new e.Spherical,O=1,g=new e.Vector3,v=!1,T=new e.Vector2,y=new e.Vector2,P=new e.Vector2,L=new e.Vector2,w=new e.Vector2,A=new e.Vector2,N=new e.Vector2,M=new e.Vector2,j=new e.Vector2;function D(){return Math.pow(.95,u.zoomSpeed)}function R(e){f.theta-=e}function S(e){f.phi-=e}var k,C=(k=new e.Vector3,function(e,t){k.setFromMatrixColumn(t,0),k.multiplyScalar(-e),g.add(k)}),Y=function(){var t=new e.Vector3;return function(e,n){!0===u.screenSpacePanning?t.setFromMatrixColumn(n,1):(t.setFromMatrixColumn(n,0),t.crossVectors(u.object.up,t)),t.multiplyScalar(e),g.add(t)}}(),x=function(){var t=new e.Vector3;return function(e,n){var o=u.domElement;if(u.object.isPerspectiveCamera){var a=u.object.position;t.copy(a).sub(u.target);var i=t.length();i*=Math.tan(u.object.fov/2*Math.PI/180),C(2*e*i/o.clientHeight,u.object.matrix),Y(2*n*i/o.clientHeight,u.object.matrix)}else u.object.isOrthographicCamera?(C(e*(u.object.right-u.object.left)/u.object.zoom/o.clientWidth,u.object.matrix),Y(n*(u.object.top-u.object.bottom)/u.object.zoom/o.clientHeight,u.object.matrix)):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - pan disabled."),u.enablePan=!1)}}();function H(e){u.object.isPerspectiveCamera?O/=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom*e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function U(e){u.object.isPerspectiveCamera?O*=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom/e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function _(e){T.set(e.clientX,e.clientY)}function V(e){L.set(e.clientX,e.clientY)}function z(e){if(1==e.touches.length)T.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);T.set(t,n)}}function I(e){if(1==e.touches.length)L.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);L.set(t,n)}}function X(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);N.set(0,o)}function F(e){if(1==e.touches.length)y.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);y.set(t,n)}P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var o=u.domElement;R(2*Math.PI*P.x/o.clientHeight),S(2*Math.PI*P.y/o.clientHeight),T.copy(y)}function Z(e){if(1==e.touches.length)w.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);w.set(t,n)}A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w)}function K(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);M.set(0,o),j.set(0,Math.pow(M.y/N.y,u.zoomSpeed)),H(j.y),N.copy(M)}function B(t){if(!1!==u.enabled)switch(t.pointerType){case"mouse":case"pen":!function(t){var n;switch(t.preventDefault(),u.domElement.focus?u.domElement.focus():window.focus(),t.button){case 0:n=u.mouseButtons.LEFT;break;case 1:n=u.mouseButtons.MIDDLE;break;case 2:n=u.mouseButtons.RIGHT;break;default:n=-1}switch(n){case e.MOUSE.DOLLY:if(!1===u.enableZoom)return;!function(e){N.set(e.clientX,e.clientY)}(t),d=h.DOLLY;break;case e.MOUSE.ROTATE:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enablePan)return;V(t),d=h.PAN}else{if(!1===u.enableRotate)return;_(t),d=h.ROTATE}break;case e.MOUSE.PAN:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enableRotate)return;_(t),d=h.ROTATE}else{if(!1===u.enablePan)return;V(t),d=h.PAN}break;default:d=h.NONE}d!==h.NONE&&(u.domElement.ownerDocument.addEventListener("pointermove",G),u.domElement.ownerDocument.addEventListener("pointerup",W),u.dispatchEvent(m))}(t)}}function G(e){if(!1!==u.enabled)switch(e.pointerType){case"mouse":case"pen":!function(e){if(!1===u.enabled)return;switch(e.preventDefault(),d){case h.ROTATE:if(!1===u.enableRotate)return;!function(e){y.set(e.clientX,e.clientY),P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var t=u.domElement;R(2*Math.PI*P.x/t.clientHeight),S(2*Math.PI*P.y/t.clientHeight),T.copy(y),u.update()}(e);break;case h.DOLLY:if(!1===u.enableZoom)return;!function(e){M.set(e.clientX,e.clientY),j.subVectors(M,N),j.y>0?H(D()):j.y<0&&U(D()),N.copy(M),u.update()}(e);break;case h.PAN:if(!1===u.enablePan)return;!function(e){w.set(e.clientX,e.clientY),A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w),u.update()}(e)}}(e)}}function W(e){switch(e.pointerType){case"mouse":case"pen":!function(e){if(u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),!1===u.enabled)return;u.dispatchEvent(p),d=h.NONE}()}}function q(e){!1===u.enabled||!1===u.enableZoom||d!==h.NONE&&d!==h.ROTATE||(e.preventDefault(),e.stopPropagation(),u.dispatchEvent(m),function(e){e.deltaY<0?U(D()):e.deltaY>0&&H(D()),u.update()}(e),u.dispatchEvent(p))}function Q(e){!1!==u.enabled&&!1!==u.enablePan&&function(e){var t=!1;switch(e.keyCode){case u.keys.UP:x(0,u.keyPanSpeed),t=!0;break;case u.keys.BOTTOM:x(0,-u.keyPanSpeed),t=!0;break;case u.keys.LEFT:x(u.keyPanSpeed,0),t=!0;break;case u.keys.RIGHT:x(-u.keyPanSpeed,0),t=!0}t&&(e.preventDefault(),u.update())}(e)}function J(t){if(!1!==u.enabled){switch(t.preventDefault(),t.touches.length){case 1:switch(u.touches.ONE){case e.TOUCH.ROTATE:if(!1===u.enableRotate)return;z(t),d=h.TOUCH_ROTATE;break;case e.TOUCH.PAN:if(!1===u.enablePan)return;I(t),d=h.TOUCH_PAN;break;default:d=h.NONE}break;case 2:switch(u.touches.TWO){case e.TOUCH.DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&X(e),u.enablePan&&I(e)}(t),d=h.TOUCH_DOLLY_PAN;break;case e.TOUCH.DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&X(e),u.enableRotate&&z(e)}(t),d=h.TOUCH_DOLLY_ROTATE;break;default:d=h.NONE}break;default:d=h.NONE}d!==h.NONE&&u.dispatchEvent(m)}}function $(e){if(!1!==u.enabled)switch(e.preventDefault(),e.stopPropagation(),d){case h.TOUCH_ROTATE:if(!1===u.enableRotate)return;F(e),u.update();break;case h.TOUCH_PAN:if(!1===u.enablePan)return;Z(e),u.update();break;case h.TOUCH_DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&K(e),u.enablePan&&Z(e)}(e),u.update();break;case h.TOUCH_DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&K(e),u.enableRotate&&F(e)}(e),u.update();break;default:d=h.NONE}}function ee(e){!1!==u.enabled&&(u.dispatchEvent(p),d=h.NONE)}function te(e){!1!==u.enabled&&e.preventDefault()}u.domElement.addEventListener("contextmenu",te),u.domElement.addEventListener("pointerdown",B),u.domElement.addEventListener("wheel",q),u.domElement.addEventListener("touchstart",J),u.domElement.addEventListener("touchend",ee),u.domElement.addEventListener("touchmove",$),this.update()};exports.OrbitControls=t,t.prototype=Object.create(e.EventDispatcher.prototype),t.prototype.constructor=t;var n=function(n,o){t.call(this,n,o),this.screenSpacePanning=!1,this.mouseButtons.LEFT=e.MOUSE.PAN,this.mouseButtons.RIGHT=e.MOUSE.ROTATE,this.touches.ONE=e.TOUCH.PAN,this.touches.TWO=e.TOUCH.DOLLY_ROTATE};exports.MapControls=n,n.prototype=Object.create(e.EventDispatcher.prototype),n.prototype.constructor=n;
-},{"../../../build/three.module.js":"dKqR"}],"Jcll":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.BufferGeometryUtils=void 0;var e=require("../../../build/three.module.js"),t={computeTangents:function(e){e.computeTangents(),console.warn("THREE.BufferGeometryUtils: .computeTangents() has been removed. Use BufferGeometry.computeTangents() instead.")},mergeBufferGeometries:function(t,r){for(var o=null!==t[0].index,i=new Set(Object.keys(t[0].attributes)),n=new Set(Object.keys(t[0].morphAttributes)),a={},u={},s=t[0].morphTargetsRelative,f=new e.BufferGeometry,l=0,m=0;m<t.length;++m){var g=t[m],c=0;if(o!==(null!==g.index))return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". All geometries must have compatible attributes; make sure index attribute exists among all geometries, or in none of them."),null;for(var d in g.attributes){if(!i.has(d))return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+'. All geometries must have compatible attributes; make sure "'+d+'" attribute exists among all geometries, or in none of them.'),null;void 0===a[d]&&(a[d]=[]),a[d].push(g.attributes[d]),c++}if(c!==i.size)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". Make sure all geometries have the same number of attributes."),null;if(s!==g.morphTargetsRelative)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". .morphTargetsRelative must be consistent throughout all geometries."),null;for(var d in g.morphAttributes){if(!n.has(d))return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+".  .morphAttributes must be consistent throughout all geometries."),null;void 0===u[d]&&(u[d]=[]),u[d].push(g.morphAttributes[d])}if(f.userData.mergedUserData=f.userData.mergedUserData||[],f.userData.mergedUserData.push(g.userData),r){var h;if(o)h=g.index.count;else{if(void 0===g.attributes.position)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". The geometry must have either an index or a position attribute"),null;h=g.attributes.position.count}f.addGroup(l,h,m),l+=h}}if(o){var b=0,p=[];for(m=0;m<t.length;++m){for(var v=t[m].index,y=0;y<v.count;++y)p.push(v.getX(y)+b);b+=t[m].attributes.position.count}f.setIndex(p)}for(var d in a){var A=this.mergeBufferAttributes(a[d]);if(!A)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the "+d+" attribute."),null;f.setAttribute(d,A)}for(var d in u){var B=u[d][0].length;if(0===B)break;f.morphAttributes=f.morphAttributes||{},f.morphAttributes[d]=[];for(m=0;m<B;++m){var w=[];for(y=0;y<u[d].length;++y)w.push(u[d][y][m]);var E=this.mergeBufferAttributes(w);if(!E)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the "+d+" morphAttribute."),null;f.morphAttributes[d].push(E)}}return f},mergeBufferAttributes:function(t){for(var r,o,i,n=0,a=0;a<t.length;++a){var u=t[a];if(u.isInterleavedBufferAttribute)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. InterleavedBufferAttributes are not supported."),null;if(void 0===r&&(r=u.array.constructor),r!==u.array.constructor)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.array must be of consistent array types across matching attributes."),null;if(void 0===o&&(o=u.itemSize),o!==u.itemSize)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.itemSize must be consistent across matching attributes."),null;if(void 0===i&&(i=u.normalized),i!==u.normalized)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.normalized must be consistent across matching attributes."),null;n+=u.array.length}var s=new r(n),f=0;for(a=0;a<t.length;++a)s.set(t[a].array,f),f+=t[a].array.length;return new e.BufferAttribute(s,o,i)},interleaveAttributes:function(t){for(var r,o=0,i=0,n=0,a=t.length;n<a;++n){var u=t[n];if(void 0===r&&(r=u.array.constructor),r!==u.array.constructor)return console.error("AttributeBuffers of different types cannot be interleaved"),null;o+=u.array.length,i+=u.itemSize}var s=new e.InterleavedBuffer(new r(o),i),f=0,l=[],m=["getX","getY","getZ","getW"],g=["setX","setY","setZ","setW"],c=0;for(a=t.length;c<a;c++){var d=(u=t[c]).itemSize,h=u.count,b=new e.InterleavedBufferAttribute(s,d,f,u.normalized);l.push(b),f+=d;for(var p=0;p<h;p++)for(var v=0;v<d;v++)b[g[v]](p,u[m[v]](p))}return l},estimateBytesUsed:function(e){var t=0;for(var r in e.attributes){var o=e.getAttribute(r);t+=o.count*o.itemSize*o.array.BYTES_PER_ELEMENT}var i=e.getIndex();return t+=i?i.count*i.itemSize*i.array.BYTES_PER_ELEMENT:0},mergeVertices:function(t,r=1e-4){r=Math.max(r,Number.EPSILON);for(var o={},i=t.getIndex(),n=t.getAttribute("position"),a=i?i.count:n.count,u=0,s=Object.keys(t.attributes),f={},l={},m=[],g=["getX","getY","getZ","getW"],c=0,d=s.length;c<d;c++){f[A=s[c]]=[],(T=t.morphAttributes[A])&&(l[A]=new Array(T.length).fill().map(()=>[]))}var h=Math.log10(1/r),b=Math.pow(10,h);for(c=0;c<a;c++){var p=i?i.getX(c):c,v="",y=0;for(d=s.length;y<d;y++)for(var A=s[y],B=(E=t.getAttribute(A)).itemSize,w=0;w<B;w++)v+=`${~~(E[g[w]](p)*b)},`;if(v in o)m.push(o[v]);else{for(y=0,d=s.length;y<d;y++){A=s[y];var E=t.getAttribute(A),T=t.morphAttributes[A],G=(B=E.itemSize,f[A]),x=l[A];for(w=0;w<B;w++){var U=g[w];if(G.push(E[U](p)),T)for(var M=0,S=T.length;M<S;M++)x[M].push(T[M][U](p))}}o[v]=u,m.push(u),u++}}const R=t.clone();for(c=0,d=s.length;c<d;c++){A=s[c];var z=t.getAttribute(A),X=new z.array.constructor(f[A]);E=new e.BufferAttribute(X,z.itemSize,z.normalized);if(R.setAttribute(A,E),A in l)for(y=0;y<l[A].length;y++){var H=t.morphAttributes[A][y],D=(X=new H.array.constructor(l[A][y]),new e.BufferAttribute(X,H.itemSize,H.normalized));R.morphAttributes[A][y]=D}}return R.setIndex(m),R},toTrianglesDrawMode:function(t,r){if(r===e.TrianglesDrawMode)return console.warn("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles."),t;if(r===e.TriangleFanDrawMode||r===e.TriangleStripDrawMode){var o=t.getIndex();if(null===o){var i=[],n=t.getAttribute("position");if(void 0===n)return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. Processing not possible."),t;for(var a=0;a<n.count;a++)i.push(a);t.setIndex(i),o=t.getIndex()}var u=o.count-2,s=[];if(r===e.TriangleFanDrawMode)for(a=1;a<=u;a++)s.push(o.getX(0)),s.push(o.getX(a)),s.push(o.getX(a+1));else for(a=0;a<u;a++)a%2==0?(s.push(o.getX(a)),s.push(o.getX(a+1)),s.push(o.getX(a+2))):(s.push(o.getX(a+2)),s.push(o.getX(a+1)),s.push(o.getX(a)));s.length/3!==u&&console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unable to generate correct amount of triangles.");var f=t.clone();return f.setIndex(s),f.clearGroups(),f}return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unknown draw mode:",r),t},computeMorphedAttributes:function(t){if(!0!==t.geometry.isBufferGeometry)return console.error("THREE.BufferGeometryUtils: Geometry is not of type BufferGeometry."),null;var r=new e.Vector3,o=new e.Vector3,i=new e.Vector3,n=new e.Vector3,a=new e.Vector3,u=new e.Vector3,s=new e.Vector3,f=new e.Vector3,l=new e.Vector3;function m(e,t,m,g,c,d,h,b,p){r.fromBufferAttribute(m,d),o.fromBufferAttribute(m,h),i.fromBufferAttribute(m,b);var v=e.morphTargetInfluences;if(t.morphTargets&&g&&v){s.set(0,0,0),f.set(0,0,0),l.set(0,0,0);for(var y=0,A=g.length;y<A;y++){var B=v[y],w=g[y];0!==B&&(n.fromBufferAttribute(w,d),a.fromBufferAttribute(w,h),u.fromBufferAttribute(w,b),c?(s.addScaledVector(n,B),f.addScaledVector(a,B),l.addScaledVector(u,B)):(s.addScaledVector(n.sub(r),B),f.addScaledVector(a.sub(o),B),l.addScaledVector(u.sub(i),B)))}r.add(s),o.add(f),i.add(l)}e.isSkinnedMesh&&(e.boneTransform(d,r),e.boneTransform(h,o),e.boneTransform(b,i)),p[3*d+0]=r.x,p[3*d+1]=r.y,p[3*d+2]=r.z,p[3*h+0]=o.x,p[3*h+1]=o.y,p[3*h+2]=o.z,p[3*b+0]=i.x,p[3*b+1]=i.y,p[3*b+2]=i.z}var g,c,d,h,b,p,v,y,A,B=t.geometry,w=t.material,E=B.index,T=B.attributes.position,G=B.morphAttributes.position,x=B.morphTargetsRelative,U=B.attributes.normal,M=B.morphAttributes.position,S=B.groups,R=B.drawRange,z=new Float32Array(T.count*T.itemSize),X=new Float32Array(U.count*U.itemSize);if(null!==E)if(Array.isArray(w))for(h=0,p=S.length;h<p;h++)for(A=w[(y=S[h]).materialIndex],b=Math.max(y.start,R.start),v=Math.min(y.start+y.count,R.start+R.count);b<v;b+=3)m(t,A,T,G,x,g=E.getX(b),c=E.getX(b+1),d=E.getX(b+2),z),m(t,A,U,M,x,g,c,d,X);else for(h=Math.max(0,R.start),p=Math.min(E.count,R.start+R.count);h<p;h+=3)m(t,w,T,G,x,g=E.getX(h),c=E.getX(h+1),d=E.getX(h+2),z),m(t,w,U,M,x,g,c,d,X);else if(void 0!==T)if(Array.isArray(w))for(h=0,p=S.length;h<p;h++)for(A=w[(y=S[h]).materialIndex],b=Math.max(y.start,R.start),v=Math.min(y.start+y.count,R.start+R.count);b<v;b+=3)m(t,A,T,G,x,g=b,c=b+1,d=b+2,z),m(t,A,U,M,x,g,c,d,X);else for(h=Math.max(0,R.start),p=Math.min(T.count,R.start+R.count);h<p;h+=3)m(t,w,T,G,x,g=h,c=h+1,d=h+2,z),m(t,w,U,M,x,g,c,d,X);return{positionAttribute:T,normalAttribute:U,morphedPositionAttribute:new e.Float32BufferAttribute(z,3),morphedNormalAttribute:new e.Float32BufferAttribute(X,3)}}};exports.BufferGeometryUtils=t;
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-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.CONTAINED=exports.INTERSECTED=exports.NOT_INTERSECTED=exports.SAH=exports.AVERAGE=exports.CENTER=void 0;var r=0;exports.CENTER=r;var E=1;exports.AVERAGE=E;var e=2;exports.SAH=e;var t=0;exports.NOT_INTERSECTED=t;var o=1;exports.INTERSECTED=o;var s=2;exports.CONTAINED=s;
-},{}],"qYFu":[function(require,module,exports) {
-"use strict";function e(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=function t(){e(this,t)};exports.default=t;
-},{}],"a4zN":[function(require,module,exports) {
-"use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
-},{}],"IMAa":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
-},{"three":"dKqR","./MeshBVHNode.js":"qYFu","./Utils/ArrayBoxUtilities.js":"a4zN","./Constants.js":"tuIt"}],"GlCc":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
-},{"three":"dKqR"}],"gld0":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
-},{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
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-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
-},{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
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-},{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
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-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
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-"use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
-},{}],"HxoX":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
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-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
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+      var overlay = createErrorOverlay(data);
+      document.body.appendChild(overlay);
+    }
+  };
+}
+
+function removeErrorOverlay() {
+  var overlay = document.getElementById(OVERLAY_ID);
+
+  if (overlay) {
+    overlay.remove();
+  }
+}
+
+function createErrorOverlay(data) {
+  var overlay = document.createElement('div');
+  overlay.id = OVERLAY_ID; // html encode message and stack trace
+
+  var message = document.createElement('div');
+  var stackTrace = document.createElement('pre');
+  message.innerText = data.error.message;
+  stackTrace.innerText = data.error.stack;
+  overlay.innerHTML = '<div style="background: black; font-size: 16px; color: white; position: fixed; height: 100%; width: 100%; top: 0px; left: 0px; padding: 30px; opacity: 0.85; font-family: Menlo, Consolas, monospace; z-index: 9999;">' + '<span style="background: red; padding: 2px 4px; border-radius: 2px;">ERROR</span>' + '<span style="top: 2px; margin-left: 5px; position: relative;">🚨</span>' + '<div style="font-size: 18px; font-weight: bold; margin-top: 20px;">' + message.innerHTML + '</div>' + '<pre>' + stackTrace.innerHTML + '</pre>' + '</div>';
+  return overlay;
+}
+
+function getParents(bundle, id) {
+  var modules = bundle.modules;
+
+  if (!modules) {
+    return [];
+  }
+
+  var parents = [];
+  var k, d, dep;
+
+  for (k in modules) {
+    for (d in modules[k][1]) {
+      dep = modules[k][1][d];
+
+      if (dep === id || Array.isArray(dep) && dep[dep.length - 1] === id) {
+        parents.push(k);
+      }
+    }
+  }
+
+  if (bundle.parent) {
+    parents = parents.concat(getParents(bundle.parent, id));
+  }
+
+  return parents;
+}
+
+function hmrApply(bundle, asset) {
+  var modules = bundle.modules;
+
+  if (!modules) {
+    return;
+  }
+
+  if (modules[asset.id] || !bundle.parent) {
+    var fn = new Function('require', 'module', 'exports', asset.generated.js);
+    asset.isNew = !modules[asset.id];
+    modules[asset.id] = [fn, asset.deps];
+  } else if (bundle.parent) {
+    hmrApply(bundle.parent, asset);
+  }
+}
+
+function hmrAcceptCheck(bundle, id) {
+  var modules = bundle.modules;
+
+  if (!modules) {
+    return;
+  }
+
+  if (!modules[id] && bundle.parent) {
+    return hmrAcceptCheck(bundle.parent, id);
+  }
+
+  if (checkedAssets[id]) {
+    return;
+  }
+
+  checkedAssets[id] = true;
+  var cached = bundle.cache[id];
+  assetsToAccept.push([bundle, id]);
+
+  if (cached && cached.hot && cached.hot._acceptCallbacks.length) {
+    return true;
+  }
+
+  return getParents(global.parcelRequire, id).some(function (id) {
+    return hmrAcceptCheck(global.parcelRequire, id);
+  });
+}
+
+function hmrAcceptRun(bundle, id) {
+  var cached = bundle.cache[id];
+  bundle.hotData = {};
+
+  if (cached) {
+    cached.hot.data = bundle.hotData;
+  }
+
+  if (cached && cached.hot && cached.hot._disposeCallbacks.length) {
+    cached.hot._disposeCallbacks.forEach(function (cb) {
+      cb(bundle.hotData);
+    });
+  }
+
+  delete bundle.cache[id];
+  bundle(id);
+  cached = bundle.cache[id];
+
+  if (cached && cached.hot && cached.hot._acceptCallbacks.length) {
+    cached.hot._acceptCallbacks.forEach(function (cb) {
+      cb();
+    });
+
+    return true;
+  }
+}
+},{}]},{},["../node_modules/parcel-bundler/src/builtins/hmr-runtime.js","sculpt.js"], null)
+//# sourceMappingURL=sculpt.493e9c78.js.map
\ No newline at end of file
diff --git a/example/bundle/sculpt.html b/example/bundle/sculpt.html
index 9bcb1365d..99f8afeba 100644
--- a/example/bundle/sculpt.html
+++ b/example/bundle/sculpt.html
@@ -1 +1,38 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#info{position:absolute;top:0;width:100%;color:#fff;font-family:monospace;text-align:center;padding:5px 0}a{color:#eee}</style></head><body> <div id="info"> Inspired by and Matcap texture from <a href="https://github.com/stephomi/sculptgl">SculptGL</a>. </div> <script src="sculpt.493e9c78.js"></script> </body></html>
\ No newline at end of file
+<!DOCTYPE html>
+<html>
+<head>
+    <title>THREE.js BVH Geometry Sculpting</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
+
+    <style>html, body {
+            padding: 0;
+            margin: 0;
+            overflow: hidden;
+        }
+
+        canvas {
+            width: 100%;
+            height: 100%;
+        }
+
+		#info {
+			position: absolute;
+			top: 0;
+			width: 100%;
+			color: white;
+			font-family: monospace;
+			text-align: center;
+			padding: 5px 0;
+		}
+
+		a {
+			color: #eee;
+		}</style>
+</head>
+<body>
+	<div id="info">
+		Inspired by and Matcap texture from <a href="https://github.com/stephomi/sculptgl">SculptGL</a>.
+	</div>
+    <script src="sculpt.493e9c78.js"></script>
+</body>
+</html>

From c1eb85a565321b1b1adfa984297e1a31a8c8fcd9 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sat, 6 Mar 2021 10:32:33 -0800
Subject: [PATCH 069/139] lint fix

---
 example/sculpt.js | 1 +
 src/MeshBVH.js    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/example/sculpt.js b/example/sculpt.js
index 30cb3ab6b..2d01c6534 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -134,6 +134,7 @@ function init() {
 		);
 
 	}
+
 	brush = new THREE.LineSegments();
 	brush.geometry.setFromPoints( brushSegments );
 	brush.material.color.set( 0xfb8c00 );
diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 81ac38b06..4f48a7610 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -119,6 +119,7 @@ export default class MeshBVH {
 			_traverse( 0 );
 
 		}
+
 		function _traverse( node32Index ) {
 
 			const node16Index = node32Index * 2;

From e33b0b7c0279aa2da6239a3b1134248a43e158f5 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sat, 6 Mar 2021 10:52:40 -0800
Subject: [PATCH 070/139] update lgtm yml

---
 lgtm.yml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lgtm.yml b/lgtm.yml
index bd29f1aba..b1022d86b 100644
--- a/lgtm.yml
+++ b/lgtm.yml
@@ -1,5 +1,3 @@
 path_classifiers:
   template:
-    - "**/*.template.js"
-  generated:
-    - exclude: src/
+    - src/*.template.js

From 0b74ba6295cfd929189ddeb6ff3f052a710546ac Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sat, 6 Mar 2021 16:23:13 -0800
Subject: [PATCH 071/139] better sculpting, multiple steps

---
 example/sculpt.js | 55 ++++++++++++++++++++++++++++++++---------------
 1 file changed, 38 insertions(+), 17 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 2d01c6534..3788ada69 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -31,7 +31,7 @@ const params = {
 	size: 0.1,
 	brush: 'clay',
 	intensity: 50,
-	maxSteps: 1,
+	maxSteps: 20,
 	invert: false,
 	flatShading: false,
 
@@ -69,6 +69,7 @@ function reset() {
 	geometry.attributes.normal.setUsage( THREE.DynamicDrawUsage );
 	geometry.computeBoundsTree();
 
+	// disable frustum culling because the verts will be updated
 	targetMesh = new THREE.Mesh(
 		geometry,
 		new THREE.MeshMatcapMaterial( {
@@ -77,6 +78,7 @@ function reset() {
 		} )
 	);
 	targetMesh.material.matcap.encoding = THREE.sRGBEncoding;
+	targetMesh.frustumCulled = false;
 	scene.add( targetMesh );
 
 	// initialize bvh helper
@@ -159,7 +161,7 @@ function init() {
 	sculptFolder.add( params, 'brush', [ 'normal', 'clay', 'flatten' ] );
 	sculptFolder.add( params, 'size' ).min( 0.025 ).max( 0.25 ).step( 0.005 );
 	sculptFolder.add( params, 'intensity' ).min( 1 ).max( 100 ).step( 1 );
-	// sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
+	sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
 	sculptFolder.add( params, 'invert' );
 	sculptFolder.add( params, 'flatShading' ).onChange( value => {
 
@@ -356,17 +358,37 @@ function performStroke( point, brushOnly = false ) {
 	const indexAttr = targetMesh.geometry.index;
 	const posAttr = targetMesh.geometry.attributes.position;
 	const normalAttr = targetMesh.geometry.attributes.normal;
-	tempVec2.copy( point ).applyMatrix4( inverseMatrix );
+	const localPoint = new THREE.Vector3();
+	localPoint.copy( point ).applyMatrix4( inverseMatrix );
+
+	const planePoint = new THREE.Vector3();
+	let totalPoints = 0;
 	indices.forEach( i => {
 
 		const index = indexAttr.getX( i );
 		tempVec.fromBufferAttribute( normalAttr, index );
 		normal.add( tempVec );
 
+		// compute the average point for cases where we need to flatten
+		// to the plane.
+		if ( ! brushOnly ) {
+
+			totalPoints ++;
+			tempVec.fromBufferAttribute( posAttr, index );
+			planePoint.add( tempVec );
+
+		}
+
 	} );
 	normal.normalize();
 	brush.quaternion.setFromUnitVectors( normalZ, normal );
 
+	if ( totalPoints ) {
+
+		planePoint.multiplyScalar( 1 / totalPoints );
+
+	}
+
 	// Early out if we just want to adjust the brush
 	if ( brushOnly ) {
 
@@ -377,7 +399,7 @@ function performStroke( point, brushOnly = false ) {
 	// perform vertex adjustment
 	const targetHeight = params.intensity * 0.000025;
 	const plane = new THREE.Plane();
-	plane.setFromNormalAndCoplanarPoint( normal, point );
+	plane.setFromNormalAndCoplanarPoint( normal, planePoint );
 
 	const indexToTriangles = {};
 	indices.forEach( i => {
@@ -386,31 +408,29 @@ function performStroke( point, brushOnly = false ) {
 		tempVec.fromBufferAttribute( posAttr, index );
 
 		// compute the offset intensity
-		const dist = tempVec.distanceTo( tempVec2 );
+		const dist = tempVec.distanceTo( localPoint );
+		const negated = params.invert ? - 1 : 1;
 		let intensity = 1.0 - ( dist / params.size );
-		intensity = Math.pow( intensity, 3 );
-
-		if ( params.invert ) {
-
-			intensity *= - 1;
-
-		}
 
 		// offset the vertex
 		if ( params.brush === 'clay' ) {
 
+			intensity = Math.pow( intensity, 3 );
 			const planeDist = plane.distanceToPoint( tempVec );
-			const clampedIntensity = Math.min( intensity * 5, 1 );
-			tempVec.addScaledVector( normal, clampedIntensity * targetHeight - planeDist * clampedIntensity * 0.5 );
+			const clampedIntensity = negated * Math.min( intensity * 5, 1 );
+			tempVec.addScaledVector( normal, clampedIntensity * targetHeight - planeDist * clampedIntensity * 0.15 );
 
 		} else if ( params.brush === 'normal' ) {
 
-			tempVec.addScaledVector( normal, intensity * targetHeight );
+			intensity = Math.pow( intensity, 3 );
+			tempVec.addScaledVector( normal, negated * intensity * targetHeight );
 
 		} else if ( params.brush === 'flatten' ) {
 
+			intensity = Math.pow( intensity, 2 );
+
 			const planeDist = plane.distanceToPoint( tempVec );
-			tempVec.addScaledVector( normal, - planeDist * intensity * params.intensity * 0.01 );
+			tempVec.addScaledVector( normal, negated * - planeDist * intensity * params.intensity * 0.01 * 0.5 );
 
 		}
 
@@ -461,7 +481,8 @@ function performStroke( point, brushOnly = false ) {
 		posAttr.needsUpdate = true;
 		normalAttr.needsUpdate = true;
 
-		// TODO: refit bounds here once it's optimized
+		// TODO: refit bounds here once it's optimized so we don't miss raycasts
+		// due to out of date bounds
 
 	}
 

From 317c146d7b2fdba0a6f73ba7174d0c8cd9ab18f3 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sat, 6 Mar 2021 16:40:29 -0800
Subject: [PATCH 072/139] Add symmetry option

---
 example/sculpt.js | 59 +++++++++++++++++++++++++++++++++++++----------
 1 file changed, 47 insertions(+), 12 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 3788ada69..56b13895e 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -20,7 +20,7 @@ THREE.BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
 
 let stats;
 let scene, camera, renderer, controls;
-let targetMesh, brush, bvhHelper;
+let targetMesh, brush, symmetryBrush, bvhHelper;
 let normalZ = new THREE.Vector3( 0, 0, 1 );
 let mouse = new THREE.Vector2(), lastMouse = new THREE.Vector2();
 let mouseState = false, lastMouseState = false;
@@ -33,6 +33,7 @@ const params = {
 	intensity: 50,
 	maxSteps: 20,
 	invert: false,
+	symmetrical: true,
 	flatShading: false,
 
 	depth: 10,
@@ -142,9 +143,12 @@ function init() {
 	brush.material.color.set( 0xfb8c00 );
 	scene.add( brush );
 
+	symmetryBrush = brush.clone();
+	scene.add( symmetryBrush );
+
 	// camera setup
 	camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 50 );
-	camera.position.set( 3, 3, 3 );
+	camera.position.set( 0, 0, 3 );
 	camera.far = 100;
 	camera.updateProjectionMatrix();
 
@@ -162,6 +166,7 @@ function init() {
 	sculptFolder.add( params, 'size' ).min( 0.025 ).max( 0.25 ).step( 0.005 );
 	sculptFolder.add( params, 'intensity' ).min( 1 ).max( 100 ).step( 1 );
 	sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
+	sculptFolder.add( params, 'symmetrical' );
 	sculptFolder.add( params, 'invert' );
 	sculptFolder.add( params, 'flatShading' ).onChange( value => {
 
@@ -256,7 +261,7 @@ function init() {
 
 		}
 
-		params.size += delta * 0.0005;
+		params.size += delta * 0.0001;
 		params.size = Math.max( Math.min( params.size, 0.25 ), 0.025 );
 
 		gui.updateDisplay();
@@ -266,7 +271,7 @@ function init() {
 }
 
 // Run the perform the brush movement
-function performStroke( point, brushOnly = false ) {
+function performStroke( point, brushObject, brushOnly = false ) {
 
 	const inverseMatrix = new THREE.Matrix4();
 	inverseMatrix.copy( targetMesh.matrixWorld ).invert();
@@ -381,7 +386,7 @@ function performStroke( point, brushOnly = false ) {
 
 	} );
 	normal.normalize();
-	brush.quaternion.setFromUnitVectors( normalZ, normal );
+	brushObject.quaternion.setFromUnitVectors( normalZ, normal );
 
 	if ( totalPoints ) {
 
@@ -417,8 +422,8 @@ function performStroke( point, brushOnly = false ) {
 
 			intensity = Math.pow( intensity, 3 );
 			const planeDist = plane.distanceToPoint( tempVec );
-			const clampedIntensity = negated * Math.min( intensity * 5, 1 );
-			tempVec.addScaledVector( normal, clampedIntensity * targetHeight - planeDist * clampedIntensity * 0.15 );
+			const clampedIntensity = negated * Math.min( intensity * 2, 0.5 ) * 2.0;
+			tempVec.addScaledVector( normal, clampedIntensity * targetHeight - negated * planeDist * clampedIntensity * 0.1 );
 
 		} else if ( params.brush === 'normal' ) {
 
@@ -430,7 +435,7 @@ function performStroke( point, brushOnly = false ) {
 			intensity = Math.pow( intensity, 2 );
 
 			const planeDist = plane.distanceToPoint( tempVec );
-			tempVec.addScaledVector( normal, negated * - planeDist * intensity * params.intensity * 0.01 * 0.5 );
+			tempVec.addScaledVector( normal, - planeDist * intensity * params.intensity * 0.01 * 0.5 );
 
 		}
 
@@ -513,7 +518,12 @@ function render() {
 			brush.visible = true;
 			brush.scale.set( params.size, params.size, 0.1 );
 			brush.position.copy( hit.point );
-			brush.quaternion.setFromUnitVectors( normalZ, hit.face.normal );
+
+			symmetryBrush.visible = params.symmetrical;
+			symmetryBrush.scale.set( params.size, params.size, 0.1 );
+			symmetryBrush.position.copy( hit.point );
+			symmetryBrush.position.x *= - 1;
+
 			controls.enabled = false;
 
 			// if the last cast pose was missed in the last frame then set it to
@@ -527,7 +537,15 @@ function render() {
 			// If the mouse isn't pressed don't perform the stroke
 			if ( ! ( mouseState || lastMouseState ) ) {
 
-				performStroke( hit.point, true );
+				performStroke( hit.point, brush, true );
+				if ( params.symmetrical ) {
+
+					hit.point.x *= - 1;
+					performStroke( hit.point, symmetryBrush, true );
+					hit.point.x *= - 1;
+
+				}
+
 				lastMouse.copy( mouse );
 				lastCastPose.copy( hit.point );
 
@@ -554,7 +572,16 @@ function render() {
 					castDist -= step;
 					mdist -= mstep;
 
-					performStroke( lastCastPose, false );
+					performStroke( lastCastPose, brush, false );
+
+					if ( params.symmetrical ) {
+
+						lastCastPose.x *= - 1;
+						performStroke( lastCastPose, symmetryBrush, false );
+						lastCastPose.x *= - 1;
+
+					}
+
 					stepCount ++;
 					if ( stepCount > params.maxSteps ) {
 
@@ -572,7 +599,14 @@ function render() {
 
 				} else {
 
-					performStroke( hit.point, true );
+					performStroke( hit.point, brush, true );
+					if ( params.symmetrical ) {
+
+						hit.point.x *= - 1;
+						performStroke( hit.point, symmetryBrush, true );
+						hit.point.x *= - 1;
+
+					}
 
 				}
 
@@ -583,6 +617,7 @@ function render() {
 			// if we didn't hit
 			controls.enabled = true;
 			brush.visible = false;
+			symmetryBrush.visible = false;
 			lastMouse.copy( mouse );
 			lastCastPose.setScalar( Infinity );
 

From 80f0989209bc5dbad022798ed7d81e1dd33ece47 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sat, 6 Mar 2021 16:42:54 -0800
Subject: [PATCH 073/139] Update build

---
 example/bundle/asyncGenerate.4a48c6e8.js      |    12 +-
 example/bundle/characterMovement.725f956b.js  |    12 +-
 example/bundle/collectTriangles.9c45819a.js   |    12 +-
 example/bundle/distancecast.4107d8f2.js       |    12 +-
 .../bundle/generateAsync.worker.13d14241.js   |    10 +-
 example/bundle/physics.50b811f1.js            |    12 +-
 example/bundle/randomSampleDebug.32ad2b43.js  |    12 +-
 example/bundle/raycast.88074831.js            |    12 +-
 example/bundle/sculpt.493e9c78.js             | 51506 +---------------
 example/bundle/sculpt.html                    |    39 +-
 example/bundle/selection.383a520f.js          |    12 +-
 example/bundle/shapecast.b93a7fe2.js          |    12 +-
 umd/index.js                                  |  1225 +-
 umd/index.js.map                              |     2 +-
 14 files changed, 989 insertions(+), 51901 deletions(-)

diff --git a/example/bundle/asyncGenerate.4a48c6e8.js b/example/bundle/asyncGenerate.4a48c6e8.js
index 25f738d46..4a6fccf76 100644
--- a/example/bundle/asyncGenerate.4a48c6e8.js
+++ b/example/bundle/asyncGenerate.4a48c6e8.js
@@ -12,7 +12,7 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{}],"a4zN":[function(require,module,exports) {
 "use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
 },{}],"IMAa":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
@@ -28,15 +28,13 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"dbR2":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"dbR2":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.GenerateMeshBVHWorker=void 0;var e=r(require("../MeshBVH.js"));function r(e){return e&&e.__esModule?e:{default:e}}function n(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function t(e,r){for(var n=0;n<r.length;n++){var t=r[n];t.enumerable=t.enumerable||!1,t.configurable=!0,"value"in t&&(t.writable=!0),Object.defineProperty(e,t.key,t)}}function i(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}var o=function(){function r(){n(this,r),this.running=!1,this.worker=new Worker("generateAsync.worker.13d14241.js")}return i(r,[{key:"generate",value:function(r){var n=this,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(this.running)throw new Error("GenerateMeshBVHWorker: Already running job.");var i=this.worker;return this.running=!0,new Promise(function(o,a){i.onmessage=function(t){n.running=!1,i.onmessage=null;var s=t.data,u=s.serialized,f=s.position,l=s.error;if(l)a(new Error(l));else{var d=e.default.deserialize(u,r,!1);r.attributes.position.array=f,r.index&&(r.index.array=u.index),o(d)}};var s=r.index?r.index.array:null,u=r.attributes.position.array;if(u.isInterleavedBufferAttribute||s&&s.isInterleavedBufferAttribute)throw new Error("GenerateMeshBVHWorker: InterleavedBufferAttribute are not supported for the geometry attributes.");var f=[u];s&&f.push(s),i.postMessage({index:s,position:u,options:t},f.map(function(e){return e.buffer}))})}},{key:"terminate",value:function(){this.worker.terminate()}}]),r}();exports.GenerateMeshBVHWorker=o;
 },{"../MeshBVH.js":"nIyY","./generateAsync.worker.js":[["generateAsync.worker.13d14241.js","HHJX"],"HHJX"]}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return h(this,r)}}function h(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,b=new t.Box3,m=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e._oldDepth=-1,e.mesh=t,e._boundsTree=null,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this;this._oldDepth=this.depth,this._boundsTree=this.mesh.geometry.boundsTree;var o=0;for(this._boundsTree&&this._boundsTree.traverse(function(n,i,u,s,c){var a=i||c;if(n>=r.depth)return!0;if(n===r.depth-1||a){var l=o<r.children.length?r.children[o]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),o++,(0,e.arrayToBox)(u,b),b.getCenter(l.position),l.scale.subVectors(b.max,b.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>o;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new m(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),_=g;exports.default=_;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
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diff --git a/example/bundle/characterMovement.725f956b.js b/example/bundle/characterMovement.725f956b.js
index ddfa3333c..8443ff303 100644
--- a/example/bundle/characterMovement.725f956b.js
+++ b/example/bundle/characterMovement.725f956b.js
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
@@ -36,13 +36,11 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
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 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return h(this,r)}}function h(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,b=new t.Box3,m=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e._oldDepth=-1,e.mesh=t,e._boundsTree=null,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this;this._oldDepth=this.depth,this._boundsTree=this.mesh.geometry.boundsTree;var o=0;for(this._boundsTree&&this._boundsTree.traverse(function(n,i,u,s,c){var a=i||c;if(n>=r.depth)return!0;if(n===r.depth-1||a){var l=o<r.children.length?r.children[o]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),o++,(0,e.arrayToBox)(u,b),b.getCenter(l.position),l.scale.subVectors(b.max,b.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>o;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new m(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),_=g;exports.default=_;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/collectTriangles.9c45819a.js b/example/bundle/collectTriangles.9c45819a.js
index eeb561d45..04170e2da 100644
--- a/example/bundle/collectTriangles.9c45819a.js
+++ b/example/bundle/collectTriangles.9c45819a.js
@@ -539,7 +539,7 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
@@ -555,13 +555,11 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return h(this,r)}}function h(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,b=new t.Box3,m=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e._oldDepth=-1,e.mesh=t,e._boundsTree=null,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this;this._oldDepth=this.depth,this._boundsTree=this.mesh.geometry.boundsTree;var o=0;for(this._boundsTree&&this._boundsTree.traverse(function(n,i,u,s,c){var a=i||c;if(n>=r.depth)return!0;if(n===r.depth-1||a){var l=o<r.children.length?r.children[o]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),o++,(0,e.arrayToBox)(u,b),b.getCenter(l.position),l.scale.subVectors(b.max,b.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>o;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new m(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),_=g;exports.default=_;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/distancecast.4107d8f2.js b/example/bundle/distancecast.4107d8f2.js
index e2740533d..470d0c5e7 100644
--- a/example/bundle/distancecast.4107d8f2.js
+++ b/example/bundle/distancecast.4107d8f2.js
@@ -539,13 +539,13 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
@@ -561,12 +561,10 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"uNJb":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
diff --git a/example/bundle/generateAsync.worker.13d14241.js b/example/bundle/generateAsync.worker.13d14241.js
index c9b87cff4..e32f4230c 100644
--- a/example/bundle/generateAsync.worker.13d14241.js
+++ b/example/bundle/generateAsync.worker.13d14241.js
@@ -7,7 +7,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{}],"a4zN":[function(require,module,exports) {
 "use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
 },{}],"IMAa":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
@@ -23,12 +23,10 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"HHJX":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"HHJX":[function(require,module,exports) {
 var global = arguments[3];
 var e=arguments[3],r=require("three"),t=i(require("../MeshBVH.js"));function i(e){return e&&e.__esModule?e:{default:e}}e.onmessage=function(i){var n=i.data,s=n.index,u=n.position,a=n.options;try{var o=new r.BufferGeometry;o.setAttribute("position",new r.BufferAttribute(u,3,!1)),s&&o.setIndex(new r.BufferAttribute(s,1,!1)),a.lazyGeneration=!1;var f=new t.default(o,a),l=t.default.serialize(f,o,!1);e.postMessage({error:null,serialized:l,position:u},[l.index.buffer,u.buffer])}catch(d){e.postMessage({error:d,serialized:null})}};
 },{"three":"dKqR","../MeshBVH.js":"nIyY"}]},{},["HHJX"], null)
\ No newline at end of file
diff --git a/example/bundle/physics.50b811f1.js b/example/bundle/physics.50b811f1.js
index facba4d8d..d1ab9276e 100644
--- a/example/bundle/physics.50b811f1.js
+++ b/example/bundle/physics.50b811f1.js
@@ -18,7 +18,7 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{}],"a4zN":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
@@ -34,13 +34,11 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
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 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return h(this,r)}}function h(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,b=new t.Box3,m=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e._oldDepth=-1,e.mesh=t,e._boundsTree=null,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this;this._oldDepth=this.depth,this._boundsTree=this.mesh.geometry.boundsTree;var o=0;for(this._boundsTree&&this._boundsTree.traverse(function(n,i,u,s,c){var a=i||c;if(n>=r.depth)return!0;if(n===r.depth-1||a){var l=o<r.children.length?r.children[o]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),o++,(0,e.arrayToBox)(u,b),b.getCenter(l.position),l.scale.subVectors(b.max,b.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>o;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new m(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),_=g;exports.default=_;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/randomSampleDebug.32ad2b43.js b/example/bundle/randomSampleDebug.32ad2b43.js
index 71e17d5d9..500eedb25 100644
--- a/example/bundle/randomSampleDebug.32ad2b43.js
+++ b/example/bundle/randomSampleDebug.32ad2b43.js
@@ -7,7 +7,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
 },{"three":"dKqR","./MeshBVHNode.js":"qYFu","./Utils/ArrayBoxUtilities.js":"a4zN","./Constants.js":"tuIt"}],"GlCc":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
@@ -23,13 +23,11 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return h(this,r)}}function h(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,b=new t.Box3,m=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e._oldDepth=-1,e.mesh=t,e._boundsTree=null,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this;this._oldDepth=this.depth,this._boundsTree=this.mesh.geometry.boundsTree;var o=0;for(this._boundsTree&&this._boundsTree.traverse(function(n,i,u,s,c){var a=i||c;if(n>=r.depth)return!0;if(n===r.depth-1||a){var l=o<r.children.length?r.children[o]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),o++,(0,e.arrayToBox)(u,b),b.getCenter(l.position),l.scale.subVectors(b.max,b.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>o;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new m(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),_=g;exports.default=_;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/raycast.88074831.js b/example/bundle/raycast.88074831.js
index 7153b7aba..3721184ec 100644
--- a/example/bundle/raycast.88074831.js
+++ b/example/bundle/raycast.88074831.js
@@ -534,13 +534,13 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
@@ -556,12 +556,10 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
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 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"uNJb":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
diff --git a/example/bundle/sculpt.493e9c78.js b/example/bundle/sculpt.493e9c78.js
index ff9aab489..5ac713f4f 100644
--- a/example/bundle/sculpt.493e9c78.js
+++ b/example/bundle/sculpt.493e9c78.js
@@ -1,50935 +1,573 @@
-// modules are defined as an array
-// [ module function, map of requires ]
-//
-// map of requires is short require name -> numeric require
-//
-// anything defined in a previous bundle is accessed via the
-// orig method which is the require for previous bundles
-parcelRequire = (function (modules, cache, entry, globalName) {
-  // Save the require from previous bundle to this closure if any
-  var previousRequire = typeof parcelRequire === 'function' && parcelRequire;
-  var nodeRequire = typeof require === 'function' && require;
-
-  function newRequire(name, jumped) {
-    if (!cache[name]) {
-      if (!modules[name]) {
-        // if we cannot find the module within our internal map or
-        // cache jump to the current global require ie. the last bundle
-        // that was added to the page.
-        var currentRequire = typeof parcelRequire === 'function' && parcelRequire;
-        if (!jumped && currentRequire) {
-          return currentRequire(name, true);
-        }
-
-        // If there are other bundles on this page the require from the
-        // previous one is saved to 'previousRequire'. Repeat this as
-        // many times as there are bundles until the module is found or
-        // we exhaust the require chain.
-        if (previousRequire) {
-          return previousRequire(name, true);
-        }
-
-        // Try the node require function if it exists.
-        if (nodeRequire && typeof name === 'string') {
-          return nodeRequire(name);
-        }
-
-        var err = new Error('Cannot find module \'' + name + '\'');
-        err.code = 'MODULE_NOT_FOUND';
-        throw err;
-      }
-
-      localRequire.resolve = resolve;
-      localRequire.cache = {};
-
-      var module = cache[name] = new newRequire.Module(name);
-
-      modules[name][0].call(module.exports, localRequire, module, module.exports, this);
-    }
-
-    return cache[name].exports;
-
-    function localRequire(x){
-      return newRequire(localRequire.resolve(x));
-    }
-
-    function resolve(x){
-      return modules[name][1][x] || x;
-    }
-  }
-
-  function Module(moduleName) {
-    this.id = moduleName;
-    this.bundle = newRequire;
-    this.exports = {};
-  }
-
-  newRequire.isParcelRequire = true;
-  newRequire.Module = Module;
-  newRequire.modules = modules;
-  newRequire.cache = cache;
-  newRequire.parent = previousRequire;
-  newRequire.register = function (id, exports) {
-    modules[id] = [function (require, module) {
-      module.exports = exports;
-    }, {}];
-  };
-
-  var error;
-  for (var i = 0; i < entry.length; i++) {
-    try {
-      newRequire(entry[i]);
-    } catch (e) {
-      // Save first error but execute all entries
-      if (!error) {
-        error = e;
-      }
-    }
-  }
-
-  if (entry.length) {
-    // Expose entry point to Node, AMD or browser globals
-    // Based on https://github.com/ForbesLindesay/umd/blob/master/template.js
-    var mainExports = newRequire(entry[entry.length - 1]);
-
-    // CommonJS
-    if (typeof exports === "object" && typeof module !== "undefined") {
-      module.exports = mainExports;
-
-    // RequireJS
-    } else if (typeof define === "function" && define.amd) {
-     define(function () {
-       return mainExports;
-     });
-
-    // <script>
-    } else if (globalName) {
-      this[globalName] = mainExports;
-    }
-  }
-
-  // Override the current require with this new one
-  parcelRequire = newRequire;
-
-  if (error) {
-    // throw error from earlier, _after updating parcelRequire_
-    throw error;
-  }
-
-  return newRequire;
-})({"../node_modules/core-js/modules/_global.js":[function(require,module,exports) {
-
-// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
-var global = module.exports = typeof window != 'undefined' && window.Math == Math
-  ? window : typeof self != 'undefined' && self.Math == Math ? self
-  // eslint-disable-next-line no-new-func
-  : Function('return this')();
-if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef
-
-},{}],"../node_modules/core-js/modules/_core.js":[function(require,module,exports) {
-var core = module.exports = { version: '2.6.11' };
-if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
-
-},{}],"../node_modules/core-js/modules/_is-object.js":[function(require,module,exports) {
-module.exports = function (it) {
-  return typeof it === 'object' ? it !== null : typeof it === 'function';
-};
-
-},{}],"../node_modules/core-js/modules/_an-object.js":[function(require,module,exports) {
-var isObject = require('./_is-object');
-module.exports = function (it) {
-  if (!isObject(it)) throw TypeError(it + ' is not an object!');
-  return it;
-};
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/_fails.js":[function(require,module,exports) {
-module.exports = function (exec) {
-  try {
-    return !!exec();
-  } catch (e) {
-    return true;
-  }
-};
-
-},{}],"../node_modules/core-js/modules/_descriptors.js":[function(require,module,exports) {
-// Thank's IE8 for his funny defineProperty
-module.exports = !require('./_fails')(function () {
-  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
-});
-
-},{"./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_dom-create.js":[function(require,module,exports) {
-var isObject = require('./_is-object');
-var document = require('./_global').document;
-// typeof document.createElement is 'object' in old IE
-var is = isObject(document) && isObject(document.createElement);
-module.exports = function (it) {
-  return is ? document.createElement(it) : {};
-};
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_ie8-dom-define.js":[function(require,module,exports) {
-module.exports = !require('./_descriptors') && !require('./_fails')(function () {
-  return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7;
-});
-
-},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_dom-create":"../node_modules/core-js/modules/_dom-create.js"}],"../node_modules/core-js/modules/_to-primitive.js":[function(require,module,exports) {
-// 7.1.1 ToPrimitive(input [, PreferredType])
-var isObject = require('./_is-object');
-// instead of the ES6 spec version, we didn't implement @@toPrimitive case
-// and the second argument - flag - preferred type is a string
-module.exports = function (it, S) {
-  if (!isObject(it)) return it;
-  var fn, val;
-  if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
-  if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
-  if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
-  throw TypeError("Can't convert object to primitive value");
-};
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/_object-dp.js":[function(require,module,exports) {
-var anObject = require('./_an-object');
-var IE8_DOM_DEFINE = require('./_ie8-dom-define');
-var toPrimitive = require('./_to-primitive');
-var dP = Object.defineProperty;
-
-exports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) {
-  anObject(O);
-  P = toPrimitive(P, true);
-  anObject(Attributes);
-  if (IE8_DOM_DEFINE) try {
-    return dP(O, P, Attributes);
-  } catch (e) { /* empty */ }
-  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
-  if ('value' in Attributes) O[P] = Attributes.value;
-  return O;
-};
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_ie8-dom-define":"../node_modules/core-js/modules/_ie8-dom-define.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_property-desc.js":[function(require,module,exports) {
-module.exports = function (bitmap, value) {
-  return {
-    enumerable: !(bitmap & 1),
-    configurable: !(bitmap & 2),
-    writable: !(bitmap & 4),
-    value: value
-  };
-};
-
-},{}],"../node_modules/core-js/modules/_hide.js":[function(require,module,exports) {
-var dP = require('./_object-dp');
-var createDesc = require('./_property-desc');
-module.exports = require('./_descriptors') ? function (object, key, value) {
-  return dP.f(object, key, createDesc(1, value));
-} : function (object, key, value) {
-  object[key] = value;
-  return object;
-};
-
-},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_has.js":[function(require,module,exports) {
-var hasOwnProperty = {}.hasOwnProperty;
-module.exports = function (it, key) {
-  return hasOwnProperty.call(it, key);
-};
-
-},{}],"../node_modules/core-js/modules/_uid.js":[function(require,module,exports) {
-var id = 0;
-var px = Math.random();
-module.exports = function (key) {
-  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
-};
-
-},{}],"../node_modules/core-js/modules/_library.js":[function(require,module,exports) {
-module.exports = false;
-
-},{}],"../node_modules/core-js/modules/_shared.js":[function(require,module,exports) {
-
-var core = require('./_core');
-var global = require('./_global');
-var SHARED = '__core-js_shared__';
-var store = global[SHARED] || (global[SHARED] = {});
-
-(module.exports = function (key, value) {
-  return store[key] || (store[key] = value !== undefined ? value : {});
-})('versions', []).push({
-  version: core.version,
-  mode: require('./_library') ? 'pure' : 'global',
-  copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
-});
-
-},{"./_core":"../node_modules/core-js/modules/_core.js","./_global":"../node_modules/core-js/modules/_global.js","./_library":"../node_modules/core-js/modules/_library.js"}],"../node_modules/core-js/modules/_function-to-string.js":[function(require,module,exports) {
-module.exports = require('./_shared')('native-function-to-string', Function.toString);
-
-},{"./_shared":"../node_modules/core-js/modules/_shared.js"}],"../node_modules/core-js/modules/_redefine.js":[function(require,module,exports) {
-
-var global = require('./_global');
-var hide = require('./_hide');
-var has = require('./_has');
-var SRC = require('./_uid')('src');
-var $toString = require('./_function-to-string');
-var TO_STRING = 'toString';
-var TPL = ('' + $toString).split(TO_STRING);
-
-require('./_core').inspectSource = function (it) {
-  return $toString.call(it);
-};
-
-(module.exports = function (O, key, val, safe) {
-  var isFunction = typeof val == 'function';
-  if (isFunction) has(val, 'name') || hide(val, 'name', key);
-  if (O[key] === val) return;
-  if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
-  if (O === global) {
-    O[key] = val;
-  } else if (!safe) {
-    delete O[key];
-    hide(O, key, val);
-  } else if (O[key]) {
-    O[key] = val;
-  } else {
-    hide(O, key, val);
-  }
-// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
-})(Function.prototype, TO_STRING, function toString() {
-  return typeof this == 'function' && this[SRC] || $toString.call(this);
-});
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_has":"../node_modules/core-js/modules/_has.js","./_uid":"../node_modules/core-js/modules/_uid.js","./_function-to-string":"../node_modules/core-js/modules/_function-to-string.js","./_core":"../node_modules/core-js/modules/_core.js"}],"../node_modules/core-js/modules/_a-function.js":[function(require,module,exports) {
-module.exports = function (it) {
-  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
-  return it;
-};
-
-},{}],"../node_modules/core-js/modules/_ctx.js":[function(require,module,exports) {
-// optional / simple context binding
-var aFunction = require('./_a-function');
-module.exports = function (fn, that, length) {
-  aFunction(fn);
-  if (that === undefined) return fn;
-  switch (length) {
-    case 1: return function (a) {
-      return fn.call(that, a);
-    };
-    case 2: return function (a, b) {
-      return fn.call(that, a, b);
-    };
-    case 3: return function (a, b, c) {
-      return fn.call(that, a, b, c);
-    };
-  }
-  return function (/* ...args */) {
-    return fn.apply(that, arguments);
-  };
-};
-
-},{"./_a-function":"../node_modules/core-js/modules/_a-function.js"}],"../node_modules/core-js/modules/_export.js":[function(require,module,exports) {
-
-var global = require('./_global');
-var core = require('./_core');
-var hide = require('./_hide');
-var redefine = require('./_redefine');
-var ctx = require('./_ctx');
-var PROTOTYPE = 'prototype';
-
-var $export = function (type, name, source) {
-  var IS_FORCED = type & $export.F;
-  var IS_GLOBAL = type & $export.G;
-  var IS_STATIC = type & $export.S;
-  var IS_PROTO = type & $export.P;
-  var IS_BIND = type & $export.B;
-  var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];
-  var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
-  var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
-  var key, own, out, exp;
-  if (IS_GLOBAL) source = name;
-  for (key in source) {
-    // contains in native
-    own = !IS_FORCED && target && target[key] !== undefined;
-    // export native or passed
-    out = (own ? target : source)[key];
-    // bind timers to global for call from export context
-    exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
-    // extend global
-    if (target) redefine(target, key, out, type & $export.U);
-    // export
-    if (exports[key] != out) hide(exports, key, exp);
-    if (IS_PROTO && expProto[key] != out) expProto[key] = out;
-  }
-};
-global.core = core;
-// type bitmap
-$export.F = 1;   // forced
-$export.G = 2;   // global
-$export.S = 4;   // static
-$export.P = 8;   // proto
-$export.B = 16;  // bind
-$export.W = 32;  // wrap
-$export.U = 64;  // safe
-$export.R = 128; // real proto method for `library`
-module.exports = $export;
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_core":"../node_modules/core-js/modules/_core.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_ctx":"../node_modules/core-js/modules/_ctx.js"}],"../node_modules/core-js/modules/_defined.js":[function(require,module,exports) {
-// 7.2.1 RequireObjectCoercible(argument)
-module.exports = function (it) {
-  if (it == undefined) throw TypeError("Can't call method on  " + it);
-  return it;
-};
-
-},{}],"../node_modules/core-js/modules/_to-object.js":[function(require,module,exports) {
-// 7.1.13 ToObject(argument)
-var defined = require('./_defined');
-module.exports = function (it) {
-  return Object(defined(it));
-};
-
-},{"./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_to-integer.js":[function(require,module,exports) {
-// 7.1.4 ToInteger
-var ceil = Math.ceil;
-var floor = Math.floor;
-module.exports = function (it) {
-  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
-};
-
-},{}],"../node_modules/core-js/modules/_to-absolute-index.js":[function(require,module,exports) {
-var toInteger = require('./_to-integer');
-var max = Math.max;
-var min = Math.min;
-module.exports = function (index, length) {
-  index = toInteger(index);
-  return index < 0 ? max(index + length, 0) : min(index, length);
-};
-
-},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js"}],"../node_modules/core-js/modules/_to-length.js":[function(require,module,exports) {
-// 7.1.15 ToLength
-var toInteger = require('./_to-integer');
-var min = Math.min;
-module.exports = function (it) {
-  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
-};
-
-},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js"}],"../node_modules/core-js/modules/_array-copy-within.js":[function(require,module,exports) {
-// 22.1.3.3 Array.prototype.copyWithin(target, start, end = this.length)
-'use strict';
-var toObject = require('./_to-object');
-var toAbsoluteIndex = require('./_to-absolute-index');
-var toLength = require('./_to-length');
-
-module.exports = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {
-  var O = toObject(this);
-  var len = toLength(O.length);
-  var to = toAbsoluteIndex(target, len);
-  var from = toAbsoluteIndex(start, len);
-  var end = arguments.length > 2 ? arguments[2] : undefined;
-  var count = Math.min((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);
-  var inc = 1;
-  if (from < to && to < from + count) {
-    inc = -1;
-    from += count - 1;
-    to += count - 1;
-  }
-  while (count-- > 0) {
-    if (from in O) O[to] = O[from];
-    else delete O[to];
-    to += inc;
-    from += inc;
-  } return O;
-};
-
-},{"./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js","./_to-length":"../node_modules/core-js/modules/_to-length.js"}],"../node_modules/core-js/modules/_wks.js":[function(require,module,exports) {
-var store = require('./_shared')('wks');
-var uid = require('./_uid');
-var Symbol = require('./_global').Symbol;
-var USE_SYMBOL = typeof Symbol == 'function';
-
-var $exports = module.exports = function (name) {
-  return store[name] || (store[name] =
-    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));
-};
-
-$exports.store = store;
-
-},{"./_shared":"../node_modules/core-js/modules/_shared.js","./_uid":"../node_modules/core-js/modules/_uid.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_add-to-unscopables.js":[function(require,module,exports) {
-// 22.1.3.31 Array.prototype[@@unscopables]
-var UNSCOPABLES = require('./_wks')('unscopables');
-var ArrayProto = Array.prototype;
-if (ArrayProto[UNSCOPABLES] == undefined) require('./_hide')(ArrayProto, UNSCOPABLES, {});
-module.exports = function (key) {
-  ArrayProto[UNSCOPABLES][key] = true;
-};
-
-},{"./_wks":"../node_modules/core-js/modules/_wks.js","./_hide":"../node_modules/core-js/modules/_hide.js"}],"../node_modules/core-js/modules/es6.array.copy-within.js":[function(require,module,exports) {
-// 22.1.3.3 Array.prototype.copyWithin(target, start, end = this.length)
-var $export = require('./_export');
-
-$export($export.P, 'Array', { copyWithin: require('./_array-copy-within') });
-
-require('./_add-to-unscopables')('copyWithin');
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-copy-within":"../node_modules/core-js/modules/_array-copy-within.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_array-fill.js":[function(require,module,exports) {
-// 22.1.3.6 Array.prototype.fill(value, start = 0, end = this.length)
-'use strict';
-var toObject = require('./_to-object');
-var toAbsoluteIndex = require('./_to-absolute-index');
-var toLength = require('./_to-length');
-module.exports = function fill(value /* , start = 0, end = @length */) {
-  var O = toObject(this);
-  var length = toLength(O.length);
-  var aLen = arguments.length;
-  var index = toAbsoluteIndex(aLen > 1 ? arguments[1] : undefined, length);
-  var end = aLen > 2 ? arguments[2] : undefined;
-  var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
-  while (endPos > index) O[index++] = value;
-  return O;
-};
-
-},{"./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js","./_to-length":"../node_modules/core-js/modules/_to-length.js"}],"../node_modules/core-js/modules/es6.array.fill.js":[function(require,module,exports) {
-// 22.1.3.6 Array.prototype.fill(value, start = 0, end = this.length)
-var $export = require('./_export');
-
-$export($export.P, 'Array', { fill: require('./_array-fill') });
-
-require('./_add-to-unscopables')('fill');
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-fill":"../node_modules/core-js/modules/_array-fill.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_cof.js":[function(require,module,exports) {
-var toString = {}.toString;
-
-module.exports = function (it) {
-  return toString.call(it).slice(8, -1);
-};
-
-},{}],"../node_modules/core-js/modules/_iobject.js":[function(require,module,exports) {
-// fallback for non-array-like ES3 and non-enumerable old V8 strings
-var cof = require('./_cof');
-// eslint-disable-next-line no-prototype-builtins
-module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
-  return cof(it) == 'String' ? it.split('') : Object(it);
-};
-
-},{"./_cof":"../node_modules/core-js/modules/_cof.js"}],"../node_modules/core-js/modules/_is-array.js":[function(require,module,exports) {
-// 7.2.2 IsArray(argument)
-var cof = require('./_cof');
-module.exports = Array.isArray || function isArray(arg) {
-  return cof(arg) == 'Array';
-};
-
-},{"./_cof":"../node_modules/core-js/modules/_cof.js"}],"../node_modules/core-js/modules/_array-species-constructor.js":[function(require,module,exports) {
-var isObject = require('./_is-object');
-var isArray = require('./_is-array');
-var SPECIES = require('./_wks')('species');
-
-module.exports = function (original) {
-  var C;
-  if (isArray(original)) {
-    C = original.constructor;
-    // cross-realm fallback
-    if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;
-    if (isObject(C)) {
-      C = C[SPECIES];
-      if (C === null) C = undefined;
-    }
-  } return C === undefined ? Array : C;
-};
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_is-array":"../node_modules/core-js/modules/_is-array.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_array-species-create.js":[function(require,module,exports) {
-// 9.4.2.3 ArraySpeciesCreate(originalArray, length)
-var speciesConstructor = require('./_array-species-constructor');
-
-module.exports = function (original, length) {
-  return new (speciesConstructor(original))(length);
-};
-
-},{"./_array-species-constructor":"../node_modules/core-js/modules/_array-species-constructor.js"}],"../node_modules/core-js/modules/_array-methods.js":[function(require,module,exports) {
-// 0 -> Array#forEach
-// 1 -> Array#map
-// 2 -> Array#filter
-// 3 -> Array#some
-// 4 -> Array#every
-// 5 -> Array#find
-// 6 -> Array#findIndex
-var ctx = require('./_ctx');
-var IObject = require('./_iobject');
-var toObject = require('./_to-object');
-var toLength = require('./_to-length');
-var asc = require('./_array-species-create');
-module.exports = function (TYPE, $create) {
-  var IS_MAP = TYPE == 1;
-  var IS_FILTER = TYPE == 2;
-  var IS_SOME = TYPE == 3;
-  var IS_EVERY = TYPE == 4;
-  var IS_FIND_INDEX = TYPE == 6;
-  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
-  var create = $create || asc;
-  return function ($this, callbackfn, that) {
-    var O = toObject($this);
-    var self = IObject(O);
-    var f = ctx(callbackfn, that, 3);
-    var length = toLength(self.length);
-    var index = 0;
-    var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
-    var val, res;
-    for (;length > index; index++) if (NO_HOLES || index in self) {
-      val = self[index];
-      res = f(val, index, O);
-      if (TYPE) {
-        if (IS_MAP) result[index] = res;   // map
-        else if (res) switch (TYPE) {
-          case 3: return true;             // some
-          case 5: return val;              // find
-          case 6: return index;            // findIndex
-          case 2: result.push(val);        // filter
-        } else if (IS_EVERY) return false; // every
-      }
-    }
-    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
-  };
-};
-
-},{"./_ctx":"../node_modules/core-js/modules/_ctx.js","./_iobject":"../node_modules/core-js/modules/_iobject.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_array-species-create":"../node_modules/core-js/modules/_array-species-create.js"}],"../node_modules/core-js/modules/es6.array.find.js":[function(require,module,exports) {
-'use strict';
-// 22.1.3.8 Array.prototype.find(predicate, thisArg = undefined)
-var $export = require('./_export');
-var $find = require('./_array-methods')(5);
-var KEY = 'find';
-var forced = true;
-// Shouldn't skip holes
-if (KEY in []) Array(1)[KEY](function () { forced = false; });
-$export($export.P + $export.F * forced, 'Array', {
-  find: function find(callbackfn /* , that = undefined */) {
-    return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-  }
-});
-require('./_add-to-unscopables')(KEY);
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/es6.array.find-index.js":[function(require,module,exports) {
-'use strict';
-// 22.1.3.9 Array.prototype.findIndex(predicate, thisArg = undefined)
-var $export = require('./_export');
-var $find = require('./_array-methods')(6);
-var KEY = 'findIndex';
-var forced = true;
-// Shouldn't skip holes
-if (KEY in []) Array(1)[KEY](function () { forced = false; });
-$export($export.P + $export.F * forced, 'Array', {
-  findIndex: function findIndex(callbackfn /* , that = undefined */) {
-    return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-  }
-});
-require('./_add-to-unscopables')(KEY);
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_flatten-into-array.js":[function(require,module,exports) {
-'use strict';
-// https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray
-var isArray = require('./_is-array');
-var isObject = require('./_is-object');
-var toLength = require('./_to-length');
-var ctx = require('./_ctx');
-var IS_CONCAT_SPREADABLE = require('./_wks')('isConcatSpreadable');
-
-function flattenIntoArray(target, original, source, sourceLen, start, depth, mapper, thisArg) {
-  var targetIndex = start;
-  var sourceIndex = 0;
-  var mapFn = mapper ? ctx(mapper, thisArg, 3) : false;
-  var element, spreadable;
-
-  while (sourceIndex < sourceLen) {
-    if (sourceIndex in source) {
-      element = mapFn ? mapFn(source[sourceIndex], sourceIndex, original) : source[sourceIndex];
-
-      spreadable = false;
-      if (isObject(element)) {
-        spreadable = element[IS_CONCAT_SPREADABLE];
-        spreadable = spreadable !== undefined ? !!spreadable : isArray(element);
-      }
-
-      if (spreadable && depth > 0) {
-        targetIndex = flattenIntoArray(target, original, element, toLength(element.length), targetIndex, depth - 1) - 1;
-      } else {
-        if (targetIndex >= 0x1fffffffffffff) throw TypeError();
-        target[targetIndex] = element;
-      }
-
-      targetIndex++;
-    }
-    sourceIndex++;
-  }
-  return targetIndex;
-}
-
-module.exports = flattenIntoArray;
-
-},{"./_is-array":"../node_modules/core-js/modules/_is-array.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es7.array.flat-map.js":[function(require,module,exports) {
-'use strict';
-// https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatMap
-var $export = require('./_export');
-var flattenIntoArray = require('./_flatten-into-array');
-var toObject = require('./_to-object');
-var toLength = require('./_to-length');
-var aFunction = require('./_a-function');
-var arraySpeciesCreate = require('./_array-species-create');
-
-$export($export.P, 'Array', {
-  flatMap: function flatMap(callbackfn /* , thisArg */) {
-    var O = toObject(this);
-    var sourceLen, A;
-    aFunction(callbackfn);
-    sourceLen = toLength(O.length);
-    A = arraySpeciesCreate(O, 0);
-    flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments[1]);
-    return A;
-  }
-});
-
-require('./_add-to-unscopables')('flatMap');
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_flatten-into-array":"../node_modules/core-js/modules/_flatten-into-array.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_array-species-create":"../node_modules/core-js/modules/_array-species-create.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_iter-call.js":[function(require,module,exports) {
-// call something on iterator step with safe closing on error
-var anObject = require('./_an-object');
-module.exports = function (iterator, fn, value, entries) {
-  try {
-    return entries ? fn(anObject(value)[0], value[1]) : fn(value);
-  // 7.4.6 IteratorClose(iterator, completion)
-  } catch (e) {
-    var ret = iterator['return'];
-    if (ret !== undefined) anObject(ret.call(iterator));
-    throw e;
-  }
-};
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/_iterators.js":[function(require,module,exports) {
-module.exports = {};
-
-},{}],"../node_modules/core-js/modules/_is-array-iter.js":[function(require,module,exports) {
-// check on default Array iterator
-var Iterators = require('./_iterators');
-var ITERATOR = require('./_wks')('iterator');
-var ArrayProto = Array.prototype;
-
-module.exports = function (it) {
-  return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
-};
-
-},{"./_iterators":"../node_modules/core-js/modules/_iterators.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_create-property.js":[function(require,module,exports) {
-'use strict';
-var $defineProperty = require('./_object-dp');
-var createDesc = require('./_property-desc');
-
-module.exports = function (object, index, value) {
-  if (index in object) $defineProperty.f(object, index, createDesc(0, value));
-  else object[index] = value;
-};
-
-},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js"}],"../node_modules/core-js/modules/_classof.js":[function(require,module,exports) {
-// getting tag from 19.1.3.6 Object.prototype.toString()
-var cof = require('./_cof');
-var TAG = require('./_wks')('toStringTag');
-// ES3 wrong here
-var ARG = cof(function () { return arguments; }()) == 'Arguments';
-
-// fallback for IE11 Script Access Denied error
-var tryGet = function (it, key) {
-  try {
-    return it[key];
-  } catch (e) { /* empty */ }
-};
-
-module.exports = function (it) {
-  var O, T, B;
-  return it === undefined ? 'Undefined' : it === null ? 'Null'
-    // @@toStringTag case
-    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
-    // builtinTag case
-    : ARG ? cof(O)
-    // ES3 arguments fallback
-    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
-};
-
-},{"./_cof":"../node_modules/core-js/modules/_cof.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/core.get-iterator-method.js":[function(require,module,exports) {
-var classof = require('./_classof');
-var ITERATOR = require('./_wks')('iterator');
-var Iterators = require('./_iterators');
-module.exports = require('./_core').getIteratorMethod = function (it) {
-  if (it != undefined) return it[ITERATOR]
-    || it['@@iterator']
-    || Iterators[classof(it)];
-};
-
-},{"./_classof":"../node_modules/core-js/modules/_classof.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_core":"../node_modules/core-js/modules/_core.js"}],"../node_modules/core-js/modules/_iter-detect.js":[function(require,module,exports) {
-var ITERATOR = require('./_wks')('iterator');
-var SAFE_CLOSING = false;
-
-try {
-  var riter = [7][ITERATOR]();
-  riter['return'] = function () { SAFE_CLOSING = true; };
-  // eslint-disable-next-line no-throw-literal
-  Array.from(riter, function () { throw 2; });
-} catch (e) { /* empty */ }
-
-module.exports = function (exec, skipClosing) {
-  if (!skipClosing && !SAFE_CLOSING) return false;
-  var safe = false;
-  try {
-    var arr = [7];
-    var iter = arr[ITERATOR]();
-    iter.next = function () { return { done: safe = true }; };
-    arr[ITERATOR] = function () { return iter; };
-    exec(arr);
-  } catch (e) { /* empty */ }
-  return safe;
-};
-
-},{"./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es6.array.from.js":[function(require,module,exports) {
-'use strict';
-var ctx = require('./_ctx');
-var $export = require('./_export');
-var toObject = require('./_to-object');
-var call = require('./_iter-call');
-var isArrayIter = require('./_is-array-iter');
-var toLength = require('./_to-length');
-var createProperty = require('./_create-property');
-var getIterFn = require('./core.get-iterator-method');
-
-$export($export.S + $export.F * !require('./_iter-detect')(function (iter) { Array.from(iter); }), 'Array', {
-  // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined)
-  from: function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
-    var O = toObject(arrayLike);
-    var C = typeof this == 'function' ? this : Array;
-    var aLen = arguments.length;
-    var mapfn = aLen > 1 ? arguments[1] : undefined;
-    var mapping = mapfn !== undefined;
-    var index = 0;
-    var iterFn = getIterFn(O);
-    var length, result, step, iterator;
-    if (mapping) mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);
-    // if object isn't iterable or it's array with default iterator - use simple case
-    if (iterFn != undefined && !(C == Array && isArrayIter(iterFn))) {
-      for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {
-        createProperty(result, index, mapping ? call(iterator, mapfn, [step.value, index], true) : step.value);
-      }
-    } else {
-      length = toLength(O.length);
-      for (result = new C(length); length > index; index++) {
-        createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);
-      }
-    }
-    result.length = index;
-    return result;
-  }
-});
-
-},{"./_ctx":"../node_modules/core-js/modules/_ctx.js","./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_iter-call":"../node_modules/core-js/modules/_iter-call.js","./_is-array-iter":"../node_modules/core-js/modules/_is-array-iter.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_create-property":"../node_modules/core-js/modules/_create-property.js","./core.get-iterator-method":"../node_modules/core-js/modules/core.get-iterator-method.js","./_iter-detect":"../node_modules/core-js/modules/_iter-detect.js"}],"../node_modules/core-js/modules/_to-iobject.js":[function(require,module,exports) {
-// to indexed object, toObject with fallback for non-array-like ES3 strings
-var IObject = require('./_iobject');
-var defined = require('./_defined');
-module.exports = function (it) {
-  return IObject(defined(it));
-};
-
-},{"./_iobject":"../node_modules/core-js/modules/_iobject.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_array-includes.js":[function(require,module,exports) {
-// false -> Array#indexOf
-// true  -> Array#includes
-var toIObject = require('./_to-iobject');
-var toLength = require('./_to-length');
-var toAbsoluteIndex = require('./_to-absolute-index');
-module.exports = function (IS_INCLUDES) {
-  return function ($this, el, fromIndex) {
-    var O = toIObject($this);
-    var length = toLength(O.length);
-    var index = toAbsoluteIndex(fromIndex, length);
-    var value;
-    // Array#includes uses SameValueZero equality algorithm
-    // eslint-disable-next-line no-self-compare
-    if (IS_INCLUDES && el != el) while (length > index) {
-      value = O[index++];
-      // eslint-disable-next-line no-self-compare
-      if (value != value) return true;
-    // Array#indexOf ignores holes, Array#includes - not
-    } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
-      if (O[index] === el) return IS_INCLUDES || index || 0;
-    } return !IS_INCLUDES && -1;
-  };
-};
-
-},{"./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js"}],"../node_modules/core-js/modules/es7.array.includes.js":[function(require,module,exports) {
-'use strict';
-// https://github.com/tc39/Array.prototype.includes
-var $export = require('./_export');
-var $includes = require('./_array-includes')(true);
-
-$export($export.P, 'Array', {
-  includes: function includes(el /* , fromIndex = 0 */) {
-    return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
-  }
-});
-
-require('./_add-to-unscopables')('includes');
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_array-includes":"../node_modules/core-js/modules/_array-includes.js","./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js"}],"../node_modules/core-js/modules/_iter-step.js":[function(require,module,exports) {
-module.exports = function (done, value) {
-  return { value: value, done: !!done };
-};
-
-},{}],"../node_modules/core-js/modules/_shared-key.js":[function(require,module,exports) {
-var shared = require('./_shared')('keys');
-var uid = require('./_uid');
-module.exports = function (key) {
-  return shared[key] || (shared[key] = uid(key));
-};
-
-},{"./_shared":"../node_modules/core-js/modules/_shared.js","./_uid":"../node_modules/core-js/modules/_uid.js"}],"../node_modules/core-js/modules/_object-keys-internal.js":[function(require,module,exports) {
-var has = require('./_has');
-var toIObject = require('./_to-iobject');
-var arrayIndexOf = require('./_array-includes')(false);
-var IE_PROTO = require('./_shared-key')('IE_PROTO');
-
-module.exports = function (object, names) {
-  var O = toIObject(object);
-  var i = 0;
-  var result = [];
-  var key;
-  for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);
-  // Don't enum bug & hidden keys
-  while (names.length > i) if (has(O, key = names[i++])) {
-    ~arrayIndexOf(result, key) || result.push(key);
-  }
-  return result;
-};
-
-},{"./_has":"../node_modules/core-js/modules/_has.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_array-includes":"../node_modules/core-js/modules/_array-includes.js","./_shared-key":"../node_modules/core-js/modules/_shared-key.js"}],"../node_modules/core-js/modules/_enum-bug-keys.js":[function(require,module,exports) {
-// IE 8- don't enum bug keys
-module.exports = (
-  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
-).split(',');
-
-},{}],"../node_modules/core-js/modules/_object-keys.js":[function(require,module,exports) {
-// 19.1.2.14 / 15.2.3.14 Object.keys(O)
-var $keys = require('./_object-keys-internal');
-var enumBugKeys = require('./_enum-bug-keys');
-
-module.exports = Object.keys || function keys(O) {
-  return $keys(O, enumBugKeys);
-};
-
-},{"./_object-keys-internal":"../node_modules/core-js/modules/_object-keys-internal.js","./_enum-bug-keys":"../node_modules/core-js/modules/_enum-bug-keys.js"}],"../node_modules/core-js/modules/_object-dps.js":[function(require,module,exports) {
-var dP = require('./_object-dp');
-var anObject = require('./_an-object');
-var getKeys = require('./_object-keys');
-
-module.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {
-  anObject(O);
-  var keys = getKeys(Properties);
-  var length = keys.length;
-  var i = 0;
-  var P;
-  while (length > i) dP.f(O, P = keys[i++], Properties[P]);
-  return O;
-};
-
-},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_html.js":[function(require,module,exports) {
-var document = require('./_global').document;
-module.exports = document && document.documentElement;
-
-},{"./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_object-create.js":[function(require,module,exports) {
-// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
-var anObject = require('./_an-object');
-var dPs = require('./_object-dps');
-var enumBugKeys = require('./_enum-bug-keys');
-var IE_PROTO = require('./_shared-key')('IE_PROTO');
-var Empty = function () { /* empty */ };
-var PROTOTYPE = 'prototype';
-
-// Create object with fake `null` prototype: use iframe Object with cleared prototype
-var createDict = function () {
-  // Thrash, waste and sodomy: IE GC bug
-  var iframe = require('./_dom-create')('iframe');
-  var i = enumBugKeys.length;
-  var lt = '<';
-  var gt = '>';
-  var iframeDocument;
-  iframe.style.display = 'none';
-  require('./_html').appendChild(iframe);
-  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
-  // createDict = iframe.contentWindow.Object;
-  // html.removeChild(iframe);
-  iframeDocument = iframe.contentWindow.document;
-  iframeDocument.open();
-  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
-  iframeDocument.close();
-  createDict = iframeDocument.F;
-  while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];
-  return createDict();
-};
-
-module.exports = Object.create || function create(O, Properties) {
-  var result;
-  if (O !== null) {
-    Empty[PROTOTYPE] = anObject(O);
-    result = new Empty();
-    Empty[PROTOTYPE] = null;
-    // add "__proto__" for Object.getPrototypeOf polyfill
-    result[IE_PROTO] = O;
-  } else result = createDict();
-  return Properties === undefined ? result : dPs(result, Properties);
-};
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_object-dps":"../node_modules/core-js/modules/_object-dps.js","./_enum-bug-keys":"../node_modules/core-js/modules/_enum-bug-keys.js","./_shared-key":"../node_modules/core-js/modules/_shared-key.js","./_dom-create":"../node_modules/core-js/modules/_dom-create.js","./_html":"../node_modules/core-js/modules/_html.js"}],"../node_modules/core-js/modules/_set-to-string-tag.js":[function(require,module,exports) {
-var def = require('./_object-dp').f;
-var has = require('./_has');
-var TAG = require('./_wks')('toStringTag');
-
-module.exports = function (it, tag, stat) {
-  if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });
-};
-
-},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_has":"../node_modules/core-js/modules/_has.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_iter-create.js":[function(require,module,exports) {
-'use strict';
-var create = require('./_object-create');
-var descriptor = require('./_property-desc');
-var setToStringTag = require('./_set-to-string-tag');
-var IteratorPrototype = {};
-
-// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
-require('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; });
-
-module.exports = function (Constructor, NAME, next) {
-  Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });
-  setToStringTag(Constructor, NAME + ' Iterator');
-};
-
-},{"./_object-create":"../node_modules/core-js/modules/_object-create.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_object-gpo.js":[function(require,module,exports) {
-// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
-var has = require('./_has');
-var toObject = require('./_to-object');
-var IE_PROTO = require('./_shared-key')('IE_PROTO');
-var ObjectProto = Object.prototype;
-
-module.exports = Object.getPrototypeOf || function (O) {
-  O = toObject(O);
-  if (has(O, IE_PROTO)) return O[IE_PROTO];
-  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
-    return O.constructor.prototype;
-  } return O instanceof Object ? ObjectProto : null;
-};
-
-},{"./_has":"../node_modules/core-js/modules/_has.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_shared-key":"../node_modules/core-js/modules/_shared-key.js"}],"../node_modules/core-js/modules/_iter-define.js":[function(require,module,exports) {
-'use strict';
-var LIBRARY = require('./_library');
-var $export = require('./_export');
-var redefine = require('./_redefine');
-var hide = require('./_hide');
-var Iterators = require('./_iterators');
-var $iterCreate = require('./_iter-create');
-var setToStringTag = require('./_set-to-string-tag');
-var getPrototypeOf = require('./_object-gpo');
-var ITERATOR = require('./_wks')('iterator');
-var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
-var FF_ITERATOR = '@@iterator';
-var KEYS = 'keys';
-var VALUES = 'values';
-
-var returnThis = function () { return this; };
-
-module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
-  $iterCreate(Constructor, NAME, next);
-  var getMethod = function (kind) {
-    if (!BUGGY && kind in proto) return proto[kind];
-    switch (kind) {
-      case KEYS: return function keys() { return new Constructor(this, kind); };
-      case VALUES: return function values() { return new Constructor(this, kind); };
-    } return function entries() { return new Constructor(this, kind); };
-  };
-  var TAG = NAME + ' Iterator';
-  var DEF_VALUES = DEFAULT == VALUES;
-  var VALUES_BUG = false;
-  var proto = Base.prototype;
-  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
-  var $default = $native || getMethod(DEFAULT);
-  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
-  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
-  var methods, key, IteratorPrototype;
-  // Fix native
-  if ($anyNative) {
-    IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));
-    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
-      // Set @@toStringTag to native iterators
-      setToStringTag(IteratorPrototype, TAG, true);
-      // fix for some old engines
-      if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);
-    }
-  }
-  // fix Array#{values, @@iterator}.name in V8 / FF
-  if (DEF_VALUES && $native && $native.name !== VALUES) {
-    VALUES_BUG = true;
-    $default = function values() { return $native.call(this); };
-  }
-  // Define iterator
-  if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
-    hide(proto, ITERATOR, $default);
-  }
-  // Plug for library
-  Iterators[NAME] = $default;
-  Iterators[TAG] = returnThis;
-  if (DEFAULT) {
-    methods = {
-      values: DEF_VALUES ? $default : getMethod(VALUES),
-      keys: IS_SET ? $default : getMethod(KEYS),
-      entries: $entries
-    };
-    if (FORCED) for (key in methods) {
-      if (!(key in proto)) redefine(proto, key, methods[key]);
-    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
-  }
-  return methods;
-};
-
-},{"./_library":"../node_modules/core-js/modules/_library.js","./_export":"../node_modules/core-js/modules/_export.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_iter-create":"../node_modules/core-js/modules/_iter-create.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es6.array.iterator.js":[function(require,module,exports) {
-'use strict';
-var addToUnscopables = require('./_add-to-unscopables');
-var step = require('./_iter-step');
-var Iterators = require('./_iterators');
-var toIObject = require('./_to-iobject');
-
-// 22.1.3.4 Array.prototype.entries()
-// 22.1.3.13 Array.prototype.keys()
-// 22.1.3.29 Array.prototype.values()
-// 22.1.3.30 Array.prototype[@@iterator]()
-module.exports = require('./_iter-define')(Array, 'Array', function (iterated, kind) {
-  this._t = toIObject(iterated); // target
-  this._i = 0;                   // next index
-  this._k = kind;                // kind
-// 22.1.5.2.1 %ArrayIteratorPrototype%.next()
-}, function () {
-  var O = this._t;
-  var kind = this._k;
-  var index = this._i++;
-  if (!O || index >= O.length) {
-    this._t = undefined;
-    return step(1);
-  }
-  if (kind == 'keys') return step(0, index);
-  if (kind == 'values') return step(0, O[index]);
-  return step(0, [index, O[index]]);
-}, 'values');
-
-// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
-Iterators.Arguments = Iterators.Array;
-
-addToUnscopables('keys');
-addToUnscopables('values');
-addToUnscopables('entries');
-
-},{"./_add-to-unscopables":"../node_modules/core-js/modules/_add-to-unscopables.js","./_iter-step":"../node_modules/core-js/modules/_iter-step.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_iter-define":"../node_modules/core-js/modules/_iter-define.js"}],"../node_modules/core-js/modules/es6.array.of.js":[function(require,module,exports) {
-'use strict';
-var $export = require('./_export');
-var createProperty = require('./_create-property');
-
-// WebKit Array.of isn't generic
-$export($export.S + $export.F * require('./_fails')(function () {
-  function F() { /* empty */ }
-  return !(Array.of.call(F) instanceof F);
-}), 'Array', {
-  // 22.1.2.3 Array.of( ...items)
-  of: function of(/* ...args */) {
-    var index = 0;
-    var aLen = arguments.length;
-    var result = new (typeof this == 'function' ? this : Array)(aLen);
-    while (aLen > index) createProperty(result, index, arguments[index++]);
-    result.length = aLen;
-    return result;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_create-property":"../node_modules/core-js/modules/_create-property.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_strict-method.js":[function(require,module,exports) {
-'use strict';
-var fails = require('./_fails');
-
-module.exports = function (method, arg) {
-  return !!method && fails(function () {
-    // eslint-disable-next-line no-useless-call
-    arg ? method.call(null, function () { /* empty */ }, 1) : method.call(null);
-  });
-};
-
-},{"./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.array.sort.js":[function(require,module,exports) {
-'use strict';
-var $export = require('./_export');
-var aFunction = require('./_a-function');
-var toObject = require('./_to-object');
-var fails = require('./_fails');
-var $sort = [].sort;
-var test = [1, 2, 3];
-
-$export($export.P + $export.F * (fails(function () {
-  // IE8-
-  test.sort(undefined);
-}) || !fails(function () {
-  // V8 bug
-  test.sort(null);
-  // Old WebKit
-}) || !require('./_strict-method')($sort)), 'Array', {
-  // 22.1.3.25 Array.prototype.sort(comparefn)
-  sort: function sort(comparefn) {
-    return comparefn === undefined
-      ? $sort.call(toObject(this))
-      : $sort.call(toObject(this), aFunction(comparefn));
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_strict-method":"../node_modules/core-js/modules/_strict-method.js"}],"../node_modules/core-js/modules/_set-species.js":[function(require,module,exports) {
-
-'use strict';
-var global = require('./_global');
-var dP = require('./_object-dp');
-var DESCRIPTORS = require('./_descriptors');
-var SPECIES = require('./_wks')('species');
-
-module.exports = function (KEY) {
-  var C = global[KEY];
-  if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {
-    configurable: true,
-    get: function () { return this; }
-  });
-};
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es6.array.species.js":[function(require,module,exports) {
-require('./_set-species')('Array');
-
-},{"./_set-species":"../node_modules/core-js/modules/_set-species.js"}],"../node_modules/core-js/modules/es6.date.to-json.js":[function(require,module,exports) {
-'use strict';
-var $export = require('./_export');
-var toObject = require('./_to-object');
-var toPrimitive = require('./_to-primitive');
-
-$export($export.P + $export.F * require('./_fails')(function () {
-  return new Date(NaN).toJSON() !== null
-    || Date.prototype.toJSON.call({ toISOString: function () { return 1; } }) !== 1;
-}), 'Date', {
-  // eslint-disable-next-line no-unused-vars
-  toJSON: function toJSON(key) {
-    var O = toObject(this);
-    var pv = toPrimitive(O);
-    return typeof pv == 'number' && !isFinite(pv) ? null : O.toISOString();
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_date-to-primitive.js":[function(require,module,exports) {
-'use strict';
-var anObject = require('./_an-object');
-var toPrimitive = require('./_to-primitive');
-var NUMBER = 'number';
-
-module.exports = function (hint) {
-  if (hint !== 'string' && hint !== NUMBER && hint !== 'default') throw TypeError('Incorrect hint');
-  return toPrimitive(anObject(this), hint != NUMBER);
-};
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js"}],"../node_modules/core-js/modules/es6.date.to-primitive.js":[function(require,module,exports) {
-var TO_PRIMITIVE = require('./_wks')('toPrimitive');
-var proto = Date.prototype;
-
-if (!(TO_PRIMITIVE in proto)) require('./_hide')(proto, TO_PRIMITIVE, require('./_date-to-primitive'));
-
-},{"./_wks":"../node_modules/core-js/modules/_wks.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_date-to-primitive":"../node_modules/core-js/modules/_date-to-primitive.js"}],"../node_modules/core-js/modules/es6.function.has-instance.js":[function(require,module,exports) {
-'use strict';
-var isObject = require('./_is-object');
-var getPrototypeOf = require('./_object-gpo');
-var HAS_INSTANCE = require('./_wks')('hasInstance');
-var FunctionProto = Function.prototype;
-// 19.2.3.6 Function.prototype[@@hasInstance](V)
-if (!(HAS_INSTANCE in FunctionProto)) require('./_object-dp').f(FunctionProto, HAS_INSTANCE, { value: function (O) {
-  if (typeof this != 'function' || !isObject(O)) return false;
-  if (!isObject(this.prototype)) return O instanceof this;
-  // for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:
-  while (O = getPrototypeOf(O)) if (this.prototype === O) return true;
-  return false;
-} });
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js"}],"../node_modules/core-js/modules/es6.function.name.js":[function(require,module,exports) {
-var dP = require('./_object-dp').f;
-var FProto = Function.prototype;
-var nameRE = /^\s*function ([^ (]*)/;
-var NAME = 'name';
-
-// 19.2.4.2 name
-NAME in FProto || require('./_descriptors') && dP(FProto, NAME, {
-  configurable: true,
-  get: function () {
-    try {
-      return ('' + this).match(nameRE)[1];
-    } catch (e) {
-      return '';
-    }
-  }
-});
-
-},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_redefine-all.js":[function(require,module,exports) {
-var redefine = require('./_redefine');
-module.exports = function (target, src, safe) {
-  for (var key in src) redefine(target, key, src[key], safe);
-  return target;
-};
-
-},{"./_redefine":"../node_modules/core-js/modules/_redefine.js"}],"../node_modules/core-js/modules/_an-instance.js":[function(require,module,exports) {
-module.exports = function (it, Constructor, name, forbiddenField) {
-  if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) {
-    throw TypeError(name + ': incorrect invocation!');
-  } return it;
-};
-
-},{}],"../node_modules/core-js/modules/_for-of.js":[function(require,module,exports) {
-var ctx = require('./_ctx');
-var call = require('./_iter-call');
-var isArrayIter = require('./_is-array-iter');
-var anObject = require('./_an-object');
-var toLength = require('./_to-length');
-var getIterFn = require('./core.get-iterator-method');
-var BREAK = {};
-var RETURN = {};
-var exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {
-  var iterFn = ITERATOR ? function () { return iterable; } : getIterFn(iterable);
-  var f = ctx(fn, that, entries ? 2 : 1);
-  var index = 0;
-  var length, step, iterator, result;
-  if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');
-  // fast case for arrays with default iterator
-  if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {
-    result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
-    if (result === BREAK || result === RETURN) return result;
-  } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {
-    result = call(iterator, f, step.value, entries);
-    if (result === BREAK || result === RETURN) return result;
-  }
-};
-exports.BREAK = BREAK;
-exports.RETURN = RETURN;
-
-},{"./_ctx":"../node_modules/core-js/modules/_ctx.js","./_iter-call":"../node_modules/core-js/modules/_iter-call.js","./_is-array-iter":"../node_modules/core-js/modules/_is-array-iter.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./core.get-iterator-method":"../node_modules/core-js/modules/core.get-iterator-method.js"}],"../node_modules/core-js/modules/_meta.js":[function(require,module,exports) {
-var META = require('./_uid')('meta');
-var isObject = require('./_is-object');
-var has = require('./_has');
-var setDesc = require('./_object-dp').f;
-var id = 0;
-var isExtensible = Object.isExtensible || function () {
-  return true;
-};
-var FREEZE = !require('./_fails')(function () {
-  return isExtensible(Object.preventExtensions({}));
-});
-var setMeta = function (it) {
-  setDesc(it, META, { value: {
-    i: 'O' + ++id, // object ID
-    w: {}          // weak collections IDs
-  } });
-};
-var fastKey = function (it, create) {
-  // return primitive with prefix
-  if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
-  if (!has(it, META)) {
-    // can't set metadata to uncaught frozen object
-    if (!isExtensible(it)) return 'F';
-    // not necessary to add metadata
-    if (!create) return 'E';
-    // add missing metadata
-    setMeta(it);
-  // return object ID
-  } return it[META].i;
-};
-var getWeak = function (it, create) {
-  if (!has(it, META)) {
-    // can't set metadata to uncaught frozen object
-    if (!isExtensible(it)) return true;
-    // not necessary to add metadata
-    if (!create) return false;
-    // add missing metadata
-    setMeta(it);
-  // return hash weak collections IDs
-  } return it[META].w;
-};
-// add metadata on freeze-family methods calling
-var onFreeze = function (it) {
-  if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
-  return it;
-};
-var meta = module.exports = {
-  KEY: META,
-  NEED: false,
-  fastKey: fastKey,
-  getWeak: getWeak,
-  onFreeze: onFreeze
-};
-
-},{"./_uid":"../node_modules/core-js/modules/_uid.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_has":"../node_modules/core-js/modules/_has.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_validate-collection.js":[function(require,module,exports) {
-var isObject = require('./_is-object');
-module.exports = function (it, TYPE) {
-  if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');
-  return it;
-};
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/_collection-strong.js":[function(require,module,exports) {
-'use strict';
-var dP = require('./_object-dp').f;
-var create = require('./_object-create');
-var redefineAll = require('./_redefine-all');
-var ctx = require('./_ctx');
-var anInstance = require('./_an-instance');
-var forOf = require('./_for-of');
-var $iterDefine = require('./_iter-define');
-var step = require('./_iter-step');
-var setSpecies = require('./_set-species');
-var DESCRIPTORS = require('./_descriptors');
-var fastKey = require('./_meta').fastKey;
-var validate = require('./_validate-collection');
-var SIZE = DESCRIPTORS ? '_s' : 'size';
-
-var getEntry = function (that, key) {
-  // fast case
-  var index = fastKey(key);
-  var entry;
-  if (index !== 'F') return that._i[index];
-  // frozen object case
-  for (entry = that._f; entry; entry = entry.n) {
-    if (entry.k == key) return entry;
-  }
-};
-
-module.exports = {
-  getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {
-    var C = wrapper(function (that, iterable) {
-      anInstance(that, C, NAME, '_i');
-      that._t = NAME;         // collection type
-      that._i = create(null); // index
-      that._f = undefined;    // first entry
-      that._l = undefined;    // last entry
-      that[SIZE] = 0;         // size
-      if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
-    });
-    redefineAll(C.prototype, {
-      // 23.1.3.1 Map.prototype.clear()
-      // 23.2.3.2 Set.prototype.clear()
-      clear: function clear() {
-        for (var that = validate(this, NAME), data = that._i, entry = that._f; entry; entry = entry.n) {
-          entry.r = true;
-          if (entry.p) entry.p = entry.p.n = undefined;
-          delete data[entry.i];
-        }
-        that._f = that._l = undefined;
-        that[SIZE] = 0;
-      },
-      // 23.1.3.3 Map.prototype.delete(key)
-      // 23.2.3.4 Set.prototype.delete(value)
-      'delete': function (key) {
-        var that = validate(this, NAME);
-        var entry = getEntry(that, key);
-        if (entry) {
-          var next = entry.n;
-          var prev = entry.p;
-          delete that._i[entry.i];
-          entry.r = true;
-          if (prev) prev.n = next;
-          if (next) next.p = prev;
-          if (that._f == entry) that._f = next;
-          if (that._l == entry) that._l = prev;
-          that[SIZE]--;
-        } return !!entry;
-      },
-      // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)
-      // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)
-      forEach: function forEach(callbackfn /* , that = undefined */) {
-        validate(this, NAME);
-        var f = ctx(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);
-        var entry;
-        while (entry = entry ? entry.n : this._f) {
-          f(entry.v, entry.k, this);
-          // revert to the last existing entry
-          while (entry && entry.r) entry = entry.p;
-        }
-      },
-      // 23.1.3.7 Map.prototype.has(key)
-      // 23.2.3.7 Set.prototype.has(value)
-      has: function has(key) {
-        return !!getEntry(validate(this, NAME), key);
-      }
-    });
-    if (DESCRIPTORS) dP(C.prototype, 'size', {
-      get: function () {
-        return validate(this, NAME)[SIZE];
-      }
-    });
-    return C;
-  },
-  def: function (that, key, value) {
-    var entry = getEntry(that, key);
-    var prev, index;
-    // change existing entry
-    if (entry) {
-      entry.v = value;
-    // create new entry
-    } else {
-      that._l = entry = {
-        i: index = fastKey(key, true), // <- index
-        k: key,                        // <- key
-        v: value,                      // <- value
-        p: prev = that._l,             // <- previous entry
-        n: undefined,                  // <- next entry
-        r: false                       // <- removed
-      };
-      if (!that._f) that._f = entry;
-      if (prev) prev.n = entry;
-      that[SIZE]++;
-      // add to index
-      if (index !== 'F') that._i[index] = entry;
-    } return that;
-  },
-  getEntry: getEntry,
-  setStrong: function (C, NAME, IS_MAP) {
-    // add .keys, .values, .entries, [@@iterator]
-    // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11
-    $iterDefine(C, NAME, function (iterated, kind) {
-      this._t = validate(iterated, NAME); // target
-      this._k = kind;                     // kind
-      this._l = undefined;                // previous
-    }, function () {
-      var that = this;
-      var kind = that._k;
-      var entry = that._l;
-      // revert to the last existing entry
-      while (entry && entry.r) entry = entry.p;
-      // get next entry
-      if (!that._t || !(that._l = entry = entry ? entry.n : that._t._f)) {
-        // or finish the iteration
-        that._t = undefined;
-        return step(1);
-      }
-      // return step by kind
-      if (kind == 'keys') return step(0, entry.k);
-      if (kind == 'values') return step(0, entry.v);
-      return step(0, [entry.k, entry.v]);
-    }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);
-
-    // add [@@species], 23.1.2.2, 23.2.2.2
-    setSpecies(NAME);
-  }
-};
-
-},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_for-of":"../node_modules/core-js/modules/_for-of.js","./_iter-define":"../node_modules/core-js/modules/_iter-define.js","./_iter-step":"../node_modules/core-js/modules/_iter-step.js","./_set-species":"../node_modules/core-js/modules/_set-species.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js"}],"../node_modules/core-js/modules/_object-pie.js":[function(require,module,exports) {
-exports.f = {}.propertyIsEnumerable;
-
-},{}],"../node_modules/core-js/modules/_object-gopd.js":[function(require,module,exports) {
-var pIE = require('./_object-pie');
-var createDesc = require('./_property-desc');
-var toIObject = require('./_to-iobject');
-var toPrimitive = require('./_to-primitive');
-var has = require('./_has');
-var IE8_DOM_DEFINE = require('./_ie8-dom-define');
-var gOPD = Object.getOwnPropertyDescriptor;
-
-exports.f = require('./_descriptors') ? gOPD : function getOwnPropertyDescriptor(O, P) {
-  O = toIObject(O);
-  P = toPrimitive(P, true);
-  if (IE8_DOM_DEFINE) try {
-    return gOPD(O, P);
-  } catch (e) { /* empty */ }
-  if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
-};
-
-},{"./_object-pie":"../node_modules/core-js/modules/_object-pie.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_has":"../node_modules/core-js/modules/_has.js","./_ie8-dom-define":"../node_modules/core-js/modules/_ie8-dom-define.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js"}],"../node_modules/core-js/modules/_set-proto.js":[function(require,module,exports) {
-// Works with __proto__ only. Old v8 can't work with null proto objects.
-/* eslint-disable no-proto */
-var isObject = require('./_is-object');
-var anObject = require('./_an-object');
-var check = function (O, proto) {
-  anObject(O);
-  if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
-};
-module.exports = {
-  set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
-    function (test, buggy, set) {
-      try {
-        set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);
-        set(test, []);
-        buggy = !(test instanceof Array);
-      } catch (e) { buggy = true; }
-      return function setPrototypeOf(O, proto) {
-        check(O, proto);
-        if (buggy) O.__proto__ = proto;
-        else set(O, proto);
-        return O;
-      };
-    }({}, false) : undefined),
-  check: check
-};
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js"}],"../node_modules/core-js/modules/_inherit-if-required.js":[function(require,module,exports) {
-var isObject = require('./_is-object');
-var setPrototypeOf = require('./_set-proto').set;
-module.exports = function (that, target, C) {
-  var S = target.constructor;
-  var P;
-  if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {
-    setPrototypeOf(that, P);
-  } return that;
-};
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_set-proto":"../node_modules/core-js/modules/_set-proto.js"}],"../node_modules/core-js/modules/_collection.js":[function(require,module,exports) {
-
-'use strict';
-var global = require('./_global');
-var $export = require('./_export');
-var redefine = require('./_redefine');
-var redefineAll = require('./_redefine-all');
-var meta = require('./_meta');
-var forOf = require('./_for-of');
-var anInstance = require('./_an-instance');
-var isObject = require('./_is-object');
-var fails = require('./_fails');
-var $iterDetect = require('./_iter-detect');
-var setToStringTag = require('./_set-to-string-tag');
-var inheritIfRequired = require('./_inherit-if-required');
-
-module.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {
-  var Base = global[NAME];
-  var C = Base;
-  var ADDER = IS_MAP ? 'set' : 'add';
-  var proto = C && C.prototype;
-  var O = {};
-  var fixMethod = function (KEY) {
-    var fn = proto[KEY];
-    redefine(proto, KEY,
-      KEY == 'delete' ? function (a) {
-        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
-      } : KEY == 'has' ? function has(a) {
-        return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
-      } : KEY == 'get' ? function get(a) {
-        return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);
-      } : KEY == 'add' ? function add(a) { fn.call(this, a === 0 ? 0 : a); return this; }
-        : function set(a, b) { fn.call(this, a === 0 ? 0 : a, b); return this; }
-    );
-  };
-  if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {
-    new C().entries().next();
-  }))) {
-    // create collection constructor
-    C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
-    redefineAll(C.prototype, methods);
-    meta.NEED = true;
-  } else {
-    var instance = new C();
-    // early implementations not supports chaining
-    var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;
-    // V8 ~  Chromium 40- weak-collections throws on primitives, but should return false
-    var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });
-    // most early implementations doesn't supports iterables, most modern - not close it correctly
-    var ACCEPT_ITERABLES = $iterDetect(function (iter) { new C(iter); }); // eslint-disable-line no-new
-    // for early implementations -0 and +0 not the same
-    var BUGGY_ZERO = !IS_WEAK && fails(function () {
-      // V8 ~ Chromium 42- fails only with 5+ elements
-      var $instance = new C();
-      var index = 5;
-      while (index--) $instance[ADDER](index, index);
-      return !$instance.has(-0);
-    });
-    if (!ACCEPT_ITERABLES) {
-      C = wrapper(function (target, iterable) {
-        anInstance(target, C, NAME);
-        var that = inheritIfRequired(new Base(), target, C);
-        if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
-        return that;
-      });
-      C.prototype = proto;
-      proto.constructor = C;
-    }
-    if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {
-      fixMethod('delete');
-      fixMethod('has');
-      IS_MAP && fixMethod('get');
-    }
-    if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);
-    // weak collections should not contains .clear method
-    if (IS_WEAK && proto.clear) delete proto.clear;
-  }
-
-  setToStringTag(C, NAME);
-
-  O[NAME] = C;
-  $export($export.G + $export.W + $export.F * (C != Base), O);
-
-  if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);
-
-  return C;
-};
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_export":"../node_modules/core-js/modules/_export.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_for-of":"../node_modules/core-js/modules/_for-of.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_iter-detect":"../node_modules/core-js/modules/_iter-detect.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_inherit-if-required":"../node_modules/core-js/modules/_inherit-if-required.js"}],"../node_modules/core-js/modules/es6.map.js":[function(require,module,exports) {
-'use strict';
-var strong = require('./_collection-strong');
-var validate = require('./_validate-collection');
-var MAP = 'Map';
-
-// 23.1 Map Objects
-module.exports = require('./_collection')(MAP, function (get) {
-  return function Map() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
-}, {
-  // 23.1.3.6 Map.prototype.get(key)
-  get: function get(key) {
-    var entry = strong.getEntry(validate(this, MAP), key);
-    return entry && entry.v;
-  },
-  // 23.1.3.9 Map.prototype.set(key, value)
-  set: function set(key, value) {
-    return strong.def(validate(this, MAP), key === 0 ? 0 : key, value);
-  }
-}, strong, true);
-
-},{"./_collection-strong":"../node_modules/core-js/modules/_collection-strong.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js","./_collection":"../node_modules/core-js/modules/_collection.js"}],"../node_modules/core-js/modules/_math-log1p.js":[function(require,module,exports) {
-// 20.2.2.20 Math.log1p(x)
-module.exports = Math.log1p || function log1p(x) {
-  return (x = +x) > -1e-8 && x < 1e-8 ? x - x * x / 2 : Math.log(1 + x);
-};
-
-},{}],"../node_modules/core-js/modules/es6.math.acosh.js":[function(require,module,exports) {
-// 20.2.2.3 Math.acosh(x)
-var $export = require('./_export');
-var log1p = require('./_math-log1p');
-var sqrt = Math.sqrt;
-var $acosh = Math.acosh;
-
-$export($export.S + $export.F * !($acosh
-  // V8 bug: https://code.google.com/p/v8/issues/detail?id=3509
-  && Math.floor($acosh(Number.MAX_VALUE)) == 710
-  // Tor Browser bug: Math.acosh(Infinity) -> NaN
-  && $acosh(Infinity) == Infinity
-), 'Math', {
-  acosh: function acosh(x) {
-    return (x = +x) < 1 ? NaN : x > 94906265.62425156
-      ? Math.log(x) + Math.LN2
-      : log1p(x - 1 + sqrt(x - 1) * sqrt(x + 1));
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-log1p":"../node_modules/core-js/modules/_math-log1p.js"}],"../node_modules/core-js/modules/es6.math.asinh.js":[function(require,module,exports) {
-// 20.2.2.5 Math.asinh(x)
-var $export = require('./_export');
-var $asinh = Math.asinh;
-
-function asinh(x) {
-  return !isFinite(x = +x) || x == 0 ? x : x < 0 ? -asinh(-x) : Math.log(x + Math.sqrt(x * x + 1));
-}
-
-// Tor Browser bug: Math.asinh(0) -> -0
-$export($export.S + $export.F * !($asinh && 1 / $asinh(0) > 0), 'Math', { asinh: asinh });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.atanh.js":[function(require,module,exports) {
-// 20.2.2.7 Math.atanh(x)
-var $export = require('./_export');
-var $atanh = Math.atanh;
-
-// Tor Browser bug: Math.atanh(-0) -> 0
-$export($export.S + $export.F * !($atanh && 1 / $atanh(-0) < 0), 'Math', {
-  atanh: function atanh(x) {
-    return (x = +x) == 0 ? x : Math.log((1 + x) / (1 - x)) / 2;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_math-sign.js":[function(require,module,exports) {
-// 20.2.2.28 Math.sign(x)
-module.exports = Math.sign || function sign(x) {
-  // eslint-disable-next-line no-self-compare
-  return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
-};
-
-},{}],"../node_modules/core-js/modules/es6.math.cbrt.js":[function(require,module,exports) {
-// 20.2.2.9 Math.cbrt(x)
-var $export = require('./_export');
-var sign = require('./_math-sign');
-
-$export($export.S, 'Math', {
-  cbrt: function cbrt(x) {
-    return sign(x = +x) * Math.pow(Math.abs(x), 1 / 3);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-sign":"../node_modules/core-js/modules/_math-sign.js"}],"../node_modules/core-js/modules/es6.math.clz32.js":[function(require,module,exports) {
-// 20.2.2.11 Math.clz32(x)
-var $export = require('./_export');
-
-$export($export.S, 'Math', {
-  clz32: function clz32(x) {
-    return (x >>>= 0) ? 31 - Math.floor(Math.log(x + 0.5) * Math.LOG2E) : 32;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.cosh.js":[function(require,module,exports) {
-// 20.2.2.12 Math.cosh(x)
-var $export = require('./_export');
-var exp = Math.exp;
-
-$export($export.S, 'Math', {
-  cosh: function cosh(x) {
-    return (exp(x = +x) + exp(-x)) / 2;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_math-expm1.js":[function(require,module,exports) {
-// 20.2.2.14 Math.expm1(x)
-var $expm1 = Math.expm1;
-module.exports = (!$expm1
-  // Old FF bug
-  || $expm1(10) > 22025.465794806719 || $expm1(10) < 22025.4657948067165168
-  // Tor Browser bug
-  || $expm1(-2e-17) != -2e-17
-) ? function expm1(x) {
-  return (x = +x) == 0 ? x : x > -1e-6 && x < 1e-6 ? x + x * x / 2 : Math.exp(x) - 1;
-} : $expm1;
-
-},{}],"../node_modules/core-js/modules/es6.math.expm1.js":[function(require,module,exports) {
-// 20.2.2.14 Math.expm1(x)
-var $export = require('./_export');
-var $expm1 = require('./_math-expm1');
-
-$export($export.S + $export.F * ($expm1 != Math.expm1), 'Math', { expm1: $expm1 });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-expm1":"../node_modules/core-js/modules/_math-expm1.js"}],"../node_modules/core-js/modules/_math-fround.js":[function(require,module,exports) {
-// 20.2.2.16 Math.fround(x)
-var sign = require('./_math-sign');
-var pow = Math.pow;
-var EPSILON = pow(2, -52);
-var EPSILON32 = pow(2, -23);
-var MAX32 = pow(2, 127) * (2 - EPSILON32);
-var MIN32 = pow(2, -126);
-
-var roundTiesToEven = function (n) {
-  return n + 1 / EPSILON - 1 / EPSILON;
-};
-
-module.exports = Math.fround || function fround(x) {
-  var $abs = Math.abs(x);
-  var $sign = sign(x);
-  var a, result;
-  if ($abs < MIN32) return $sign * roundTiesToEven($abs / MIN32 / EPSILON32) * MIN32 * EPSILON32;
-  a = (1 + EPSILON32 / EPSILON) * $abs;
-  result = a - (a - $abs);
-  // eslint-disable-next-line no-self-compare
-  if (result > MAX32 || result != result) return $sign * Infinity;
-  return $sign * result;
-};
-
-},{"./_math-sign":"../node_modules/core-js/modules/_math-sign.js"}],"../node_modules/core-js/modules/es6.math.fround.js":[function(require,module,exports) {
-// 20.2.2.16 Math.fround(x)
-var $export = require('./_export');
-
-$export($export.S, 'Math', { fround: require('./_math-fround') });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-fround":"../node_modules/core-js/modules/_math-fround.js"}],"../node_modules/core-js/modules/es6.math.hypot.js":[function(require,module,exports) {
-// 20.2.2.17 Math.hypot([value1[, value2[, … ]]])
-var $export = require('./_export');
-var abs = Math.abs;
-
-$export($export.S, 'Math', {
-  hypot: function hypot(value1, value2) { // eslint-disable-line no-unused-vars
-    var sum = 0;
-    var i = 0;
-    var aLen = arguments.length;
-    var larg = 0;
-    var arg, div;
-    while (i < aLen) {
-      arg = abs(arguments[i++]);
-      if (larg < arg) {
-        div = larg / arg;
-        sum = sum * div * div + 1;
-        larg = arg;
-      } else if (arg > 0) {
-        div = arg / larg;
-        sum += div * div;
-      } else sum += arg;
-    }
-    return larg === Infinity ? Infinity : larg * Math.sqrt(sum);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.imul.js":[function(require,module,exports) {
-// 20.2.2.18 Math.imul(x, y)
-var $export = require('./_export');
-var $imul = Math.imul;
-
-// some WebKit versions fails with big numbers, some has wrong arity
-$export($export.S + $export.F * require('./_fails')(function () {
-  return $imul(0xffffffff, 5) != -5 || $imul.length != 2;
-}), 'Math', {
-  imul: function imul(x, y) {
-    var UINT16 = 0xffff;
-    var xn = +x;
-    var yn = +y;
-    var xl = UINT16 & xn;
-    var yl = UINT16 & yn;
-    return 0 | xl * yl + ((UINT16 & xn >>> 16) * yl + xl * (UINT16 & yn >>> 16) << 16 >>> 0);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.math.log1p.js":[function(require,module,exports) {
-// 20.2.2.20 Math.log1p(x)
-var $export = require('./_export');
-
-$export($export.S, 'Math', { log1p: require('./_math-log1p') });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-log1p":"../node_modules/core-js/modules/_math-log1p.js"}],"../node_modules/core-js/modules/es6.math.log10.js":[function(require,module,exports) {
-// 20.2.2.21 Math.log10(x)
-var $export = require('./_export');
-
-$export($export.S, 'Math', {
-  log10: function log10(x) {
-    return Math.log(x) * Math.LOG10E;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.log2.js":[function(require,module,exports) {
-// 20.2.2.22 Math.log2(x)
-var $export = require('./_export');
-
-$export($export.S, 'Math', {
-  log2: function log2(x) {
-    return Math.log(x) / Math.LN2;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.math.sign.js":[function(require,module,exports) {
-// 20.2.2.28 Math.sign(x)
-var $export = require('./_export');
-
-$export($export.S, 'Math', { sign: require('./_math-sign') });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-sign":"../node_modules/core-js/modules/_math-sign.js"}],"../node_modules/core-js/modules/es6.math.sinh.js":[function(require,module,exports) {
-// 20.2.2.30 Math.sinh(x)
-var $export = require('./_export');
-var expm1 = require('./_math-expm1');
-var exp = Math.exp;
-
-// V8 near Chromium 38 has a problem with very small numbers
-$export($export.S + $export.F * require('./_fails')(function () {
-  return !Math.sinh(-2e-17) != -2e-17;
-}), 'Math', {
-  sinh: function sinh(x) {
-    return Math.abs(x = +x) < 1
-      ? (expm1(x) - expm1(-x)) / 2
-      : (exp(x - 1) - exp(-x - 1)) * (Math.E / 2);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-expm1":"../node_modules/core-js/modules/_math-expm1.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.math.tanh.js":[function(require,module,exports) {
-// 20.2.2.33 Math.tanh(x)
-var $export = require('./_export');
-var expm1 = require('./_math-expm1');
-var exp = Math.exp;
-
-$export($export.S, 'Math', {
-  tanh: function tanh(x) {
-    var a = expm1(x = +x);
-    var b = expm1(-x);
-    return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(x) + exp(-x));
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_math-expm1":"../node_modules/core-js/modules/_math-expm1.js"}],"../node_modules/core-js/modules/es6.math.trunc.js":[function(require,module,exports) {
-// 20.2.2.34 Math.trunc(x)
-var $export = require('./_export');
-
-$export($export.S, 'Math', {
-  trunc: function trunc(it) {
-    return (it > 0 ? Math.floor : Math.ceil)(it);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_object-gopn.js":[function(require,module,exports) {
-// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
-var $keys = require('./_object-keys-internal');
-var hiddenKeys = require('./_enum-bug-keys').concat('length', 'prototype');
-
-exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
-  return $keys(O, hiddenKeys);
-};
-
-},{"./_object-keys-internal":"../node_modules/core-js/modules/_object-keys-internal.js","./_enum-bug-keys":"../node_modules/core-js/modules/_enum-bug-keys.js"}],"../node_modules/core-js/modules/_string-ws.js":[function(require,module,exports) {
-module.exports = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
-  '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';
-
-},{}],"../node_modules/core-js/modules/_string-trim.js":[function(require,module,exports) {
-var $export = require('./_export');
-var defined = require('./_defined');
-var fails = require('./_fails');
-var spaces = require('./_string-ws');
-var space = '[' + spaces + ']';
-var non = '\u200b\u0085';
-var ltrim = RegExp('^' + space + space + '*');
-var rtrim = RegExp(space + space + '*$');
-
-var exporter = function (KEY, exec, ALIAS) {
-  var exp = {};
-  var FORCE = fails(function () {
-    return !!spaces[KEY]() || non[KEY]() != non;
-  });
-  var fn = exp[KEY] = FORCE ? exec(trim) : spaces[KEY];
-  if (ALIAS) exp[ALIAS] = fn;
-  $export($export.P + $export.F * FORCE, 'String', exp);
-};
-
-// 1 -> String#trimLeft
-// 2 -> String#trimRight
-// 3 -> String#trim
-var trim = exporter.trim = function (string, TYPE) {
-  string = String(defined(string));
-  if (TYPE & 1) string = string.replace(ltrim, '');
-  if (TYPE & 2) string = string.replace(rtrim, '');
-  return string;
-};
-
-module.exports = exporter;
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_defined":"../node_modules/core-js/modules/_defined.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_string-ws":"../node_modules/core-js/modules/_string-ws.js"}],"../node_modules/core-js/modules/es6.number.constructor.js":[function(require,module,exports) {
-
-'use strict';
-var global = require('./_global');
-var has = require('./_has');
-var cof = require('./_cof');
-var inheritIfRequired = require('./_inherit-if-required');
-var toPrimitive = require('./_to-primitive');
-var fails = require('./_fails');
-var gOPN = require('./_object-gopn').f;
-var gOPD = require('./_object-gopd').f;
-var dP = require('./_object-dp').f;
-var $trim = require('./_string-trim').trim;
-var NUMBER = 'Number';
-var $Number = global[NUMBER];
-var Base = $Number;
-var proto = $Number.prototype;
-// Opera ~12 has broken Object#toString
-var BROKEN_COF = cof(require('./_object-create')(proto)) == NUMBER;
-var TRIM = 'trim' in String.prototype;
-
-// 7.1.3 ToNumber(argument)
-var toNumber = function (argument) {
-  var it = toPrimitive(argument, false);
-  if (typeof it == 'string' && it.length > 2) {
-    it = TRIM ? it.trim() : $trim(it, 3);
-    var first = it.charCodeAt(0);
-    var third, radix, maxCode;
-    if (first === 43 || first === 45) {
-      third = it.charCodeAt(2);
-      if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix
-    } else if (first === 48) {
-      switch (it.charCodeAt(1)) {
-        case 66: case 98: radix = 2; maxCode = 49; break; // fast equal /^0b[01]+$/i
-        case 79: case 111: radix = 8; maxCode = 55; break; // fast equal /^0o[0-7]+$/i
-        default: return +it;
-      }
-      for (var digits = it.slice(2), i = 0, l = digits.length, code; i < l; i++) {
-        code = digits.charCodeAt(i);
-        // parseInt parses a string to a first unavailable symbol
-        // but ToNumber should return NaN if a string contains unavailable symbols
-        if (code < 48 || code > maxCode) return NaN;
-      } return parseInt(digits, radix);
-    }
-  } return +it;
-};
-
-if (!$Number(' 0o1') || !$Number('0b1') || $Number('+0x1')) {
-  $Number = function Number(value) {
-    var it = arguments.length < 1 ? 0 : value;
-    var that = this;
-    return that instanceof $Number
-      // check on 1..constructor(foo) case
-      && (BROKEN_COF ? fails(function () { proto.valueOf.call(that); }) : cof(that) != NUMBER)
-        ? inheritIfRequired(new Base(toNumber(it)), that, $Number) : toNumber(it);
-  };
-  for (var keys = require('./_descriptors') ? gOPN(Base) : (
-    // ES3:
-    'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
-    // ES6 (in case, if modules with ES6 Number statics required before):
-    'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +
-    'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'
-  ).split(','), j = 0, key; keys.length > j; j++) {
-    if (has(Base, key = keys[j]) && !has($Number, key)) {
-      dP($Number, key, gOPD(Base, key));
-    }
-  }
-  $Number.prototype = proto;
-  proto.constructor = $Number;
-  require('./_redefine')(global, NUMBER, $Number);
-}
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_has":"../node_modules/core-js/modules/_has.js","./_cof":"../node_modules/core-js/modules/_cof.js","./_inherit-if-required":"../node_modules/core-js/modules/_inherit-if-required.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_string-trim":"../node_modules/core-js/modules/_string-trim.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_redefine":"../node_modules/core-js/modules/_redefine.js"}],"../node_modules/core-js/modules/es6.number.epsilon.js":[function(require,module,exports) {
-// 20.1.2.1 Number.EPSILON
-var $export = require('./_export');
-
-$export($export.S, 'Number', { EPSILON: Math.pow(2, -52) });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.number.is-finite.js":[function(require,module,exports) {
-// 20.1.2.2 Number.isFinite(number)
-var $export = require('./_export');
-var _isFinite = require('./_global').isFinite;
-
-$export($export.S, 'Number', {
-  isFinite: function isFinite(it) {
-    return typeof it == 'number' && _isFinite(it);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_is-integer.js":[function(require,module,exports) {
-// 20.1.2.3 Number.isInteger(number)
-var isObject = require('./_is-object');
-var floor = Math.floor;
-module.exports = function isInteger(it) {
-  return !isObject(it) && isFinite(it) && floor(it) === it;
-};
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/es6.number.is-integer.js":[function(require,module,exports) {
-// 20.1.2.3 Number.isInteger(number)
-var $export = require('./_export');
-
-$export($export.S, 'Number', { isInteger: require('./_is-integer') });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_is-integer":"../node_modules/core-js/modules/_is-integer.js"}],"../node_modules/core-js/modules/es6.number.is-nan.js":[function(require,module,exports) {
-// 20.1.2.4 Number.isNaN(number)
-var $export = require('./_export');
-
-$export($export.S, 'Number', {
-  isNaN: function isNaN(number) {
-    // eslint-disable-next-line no-self-compare
-    return number != number;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.number.is-safe-integer.js":[function(require,module,exports) {
-// 20.1.2.5 Number.isSafeInteger(number)
-var $export = require('./_export');
-var isInteger = require('./_is-integer');
-var abs = Math.abs;
-
-$export($export.S, 'Number', {
-  isSafeInteger: function isSafeInteger(number) {
-    return isInteger(number) && abs(number) <= 0x1fffffffffffff;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_is-integer":"../node_modules/core-js/modules/_is-integer.js"}],"../node_modules/core-js/modules/es6.number.max-safe-integer.js":[function(require,module,exports) {
-// 20.1.2.6 Number.MAX_SAFE_INTEGER
-var $export = require('./_export');
-
-$export($export.S, 'Number', { MAX_SAFE_INTEGER: 0x1fffffffffffff });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.number.min-safe-integer.js":[function(require,module,exports) {
-// 20.1.2.10 Number.MIN_SAFE_INTEGER
-var $export = require('./_export');
-
-$export($export.S, 'Number', { MIN_SAFE_INTEGER: -0x1fffffffffffff });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_parse-float.js":[function(require,module,exports) {
-var $parseFloat = require('./_global').parseFloat;
-var $trim = require('./_string-trim').trim;
-
-module.exports = 1 / $parseFloat(require('./_string-ws') + '-0') !== -Infinity ? function parseFloat(str) {
-  var string = $trim(String(str), 3);
-  var result = $parseFloat(string);
-  return result === 0 && string.charAt(0) == '-' ? -0 : result;
-} : $parseFloat;
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_string-trim":"../node_modules/core-js/modules/_string-trim.js","./_string-ws":"../node_modules/core-js/modules/_string-ws.js"}],"../node_modules/core-js/modules/es6.number.parse-float.js":[function(require,module,exports) {
-var $export = require('./_export');
-var $parseFloat = require('./_parse-float');
-// 20.1.2.12 Number.parseFloat(string)
-$export($export.S + $export.F * (Number.parseFloat != $parseFloat), 'Number', { parseFloat: $parseFloat });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_parse-float":"../node_modules/core-js/modules/_parse-float.js"}],"../node_modules/core-js/modules/_parse-int.js":[function(require,module,exports) {
-var $parseInt = require('./_global').parseInt;
-var $trim = require('./_string-trim').trim;
-var ws = require('./_string-ws');
-var hex = /^[-+]?0[xX]/;
-
-module.exports = $parseInt(ws + '08') !== 8 || $parseInt(ws + '0x16') !== 22 ? function parseInt(str, radix) {
-  var string = $trim(String(str), 3);
-  return $parseInt(string, (radix >>> 0) || (hex.test(string) ? 16 : 10));
-} : $parseInt;
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_string-trim":"../node_modules/core-js/modules/_string-trim.js","./_string-ws":"../node_modules/core-js/modules/_string-ws.js"}],"../node_modules/core-js/modules/es6.number.parse-int.js":[function(require,module,exports) {
-var $export = require('./_export');
-var $parseInt = require('./_parse-int');
-// 20.1.2.13 Number.parseInt(string, radix)
-$export($export.S + $export.F * (Number.parseInt != $parseInt), 'Number', { parseInt: $parseInt });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_parse-int":"../node_modules/core-js/modules/_parse-int.js"}],"../node_modules/core-js/modules/_object-gops.js":[function(require,module,exports) {
-exports.f = Object.getOwnPropertySymbols;
-
-},{}],"../node_modules/core-js/modules/_object-assign.js":[function(require,module,exports) {
-'use strict';
-// 19.1.2.1 Object.assign(target, source, ...)
-var DESCRIPTORS = require('./_descriptors');
-var getKeys = require('./_object-keys');
-var gOPS = require('./_object-gops');
-var pIE = require('./_object-pie');
-var toObject = require('./_to-object');
-var IObject = require('./_iobject');
-var $assign = Object.assign;
-
-// should work with symbols and should have deterministic property order (V8 bug)
-module.exports = !$assign || require('./_fails')(function () {
-  var A = {};
-  var B = {};
-  // eslint-disable-next-line no-undef
-  var S = Symbol();
-  var K = 'abcdefghijklmnopqrst';
-  A[S] = 7;
-  K.split('').forEach(function (k) { B[k] = k; });
-  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
-}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
-  var T = toObject(target);
-  var aLen = arguments.length;
-  var index = 1;
-  var getSymbols = gOPS.f;
-  var isEnum = pIE.f;
-  while (aLen > index) {
-    var S = IObject(arguments[index++]);
-    var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
-    var length = keys.length;
-    var j = 0;
-    var key;
-    while (length > j) {
-      key = keys[j++];
-      if (!DESCRIPTORS || isEnum.call(S, key)) T[key] = S[key];
-    }
-  } return T;
-} : $assign;
-
-},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_object-gops":"../node_modules/core-js/modules/_object-gops.js","./_object-pie":"../node_modules/core-js/modules/_object-pie.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_iobject":"../node_modules/core-js/modules/_iobject.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.object.assign.js":[function(require,module,exports) {
-// 19.1.3.1 Object.assign(target, source)
-var $export = require('./_export');
-
-$export($export.S + $export.F, 'Object', { assign: require('./_object-assign') });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-assign":"../node_modules/core-js/modules/_object-assign.js"}],"../node_modules/core-js/modules/_object-forced-pam.js":[function(require,module,exports) {
-'use strict';
-// Forced replacement prototype accessors methods
-module.exports = require('./_library') || !require('./_fails')(function () {
-  var K = Math.random();
-  // In FF throws only define methods
-  // eslint-disable-next-line no-undef, no-useless-call
-  __defineSetter__.call(null, K, function () { /* empty */ });
-  delete require('./_global')[K];
-});
-
-},{"./_library":"../node_modules/core-js/modules/_library.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/es7.object.define-getter.js":[function(require,module,exports) {
-'use strict';
-var $export = require('./_export');
-var toObject = require('./_to-object');
-var aFunction = require('./_a-function');
-var $defineProperty = require('./_object-dp');
-
-// B.2.2.2 Object.prototype.__defineGetter__(P, getter)
-require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
-  __defineGetter__: function __defineGetter__(P, getter) {
-    $defineProperty.f(toObject(this), P, { get: aFunction(getter), enumerable: true, configurable: true });
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-forced-pam":"../node_modules/core-js/modules/_object-forced-pam.js"}],"../node_modules/core-js/modules/es7.object.define-setter.js":[function(require,module,exports) {
-'use strict';
-var $export = require('./_export');
-var toObject = require('./_to-object');
-var aFunction = require('./_a-function');
-var $defineProperty = require('./_object-dp');
-
-// B.2.2.3 Object.prototype.__defineSetter__(P, setter)
-require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
-  __defineSetter__: function __defineSetter__(P, setter) {
-    $defineProperty.f(toObject(this), P, { set: aFunction(setter), enumerable: true, configurable: true });
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-forced-pam":"../node_modules/core-js/modules/_object-forced-pam.js"}],"../node_modules/core-js/modules/_object-to-array.js":[function(require,module,exports) {
-var DESCRIPTORS = require('./_descriptors');
-var getKeys = require('./_object-keys');
-var toIObject = require('./_to-iobject');
-var isEnum = require('./_object-pie').f;
-module.exports = function (isEntries) {
-  return function (it) {
-    var O = toIObject(it);
-    var keys = getKeys(O);
-    var length = keys.length;
-    var i = 0;
-    var result = [];
-    var key;
-    while (length > i) {
-      key = keys[i++];
-      if (!DESCRIPTORS || isEnum.call(O, key)) {
-        result.push(isEntries ? [key, O[key]] : O[key]);
-      }
-    }
-    return result;
-  };
-};
-
-},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_object-pie":"../node_modules/core-js/modules/_object-pie.js"}],"../node_modules/core-js/modules/es7.object.entries.js":[function(require,module,exports) {
-// https://github.com/tc39/proposal-object-values-entries
-var $export = require('./_export');
-var $entries = require('./_object-to-array')(true);
-
-$export($export.S, 'Object', {
-  entries: function entries(it) {
-    return $entries(it);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-to-array":"../node_modules/core-js/modules/_object-to-array.js"}],"../node_modules/core-js/modules/_object-sap.js":[function(require,module,exports) {
-// most Object methods by ES6 should accept primitives
-var $export = require('./_export');
-var core = require('./_core');
-var fails = require('./_fails');
-module.exports = function (KEY, exec) {
-  var fn = (core.Object || {})[KEY] || Object[KEY];
-  var exp = {};
-  exp[KEY] = exec(fn);
-  $export($export.S + $export.F * fails(function () { fn(1); }), 'Object', exp);
-};
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_core":"../node_modules/core-js/modules/_core.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.object.freeze.js":[function(require,module,exports) {
-// 19.1.2.5 Object.freeze(O)
-var isObject = require('./_is-object');
-var meta = require('./_meta').onFreeze;
-
-require('./_object-sap')('freeze', function ($freeze) {
-  return function freeze(it) {
-    return $freeze && isObject(it) ? $freeze(meta(it)) : it;
-  };
-});
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.get-own-property-descriptor.js":[function(require,module,exports) {
-// 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
-var toIObject = require('./_to-iobject');
-var $getOwnPropertyDescriptor = require('./_object-gopd').f;
-
-require('./_object-sap')('getOwnPropertyDescriptor', function () {
-  return function getOwnPropertyDescriptor(it, key) {
-    return $getOwnPropertyDescriptor(toIObject(it), key);
-  };
-});
-
-},{"./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/_own-keys.js":[function(require,module,exports) {
-// all object keys, includes non-enumerable and symbols
-var gOPN = require('./_object-gopn');
-var gOPS = require('./_object-gops');
-var anObject = require('./_an-object');
-var Reflect = require('./_global').Reflect;
-module.exports = Reflect && Reflect.ownKeys || function ownKeys(it) {
-  var keys = gOPN.f(anObject(it));
-  var getSymbols = gOPS.f;
-  return getSymbols ? keys.concat(getSymbols(it)) : keys;
-};
-
-},{"./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_object-gops":"../node_modules/core-js/modules/_object-gops.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/es7.object.get-own-property-descriptors.js":[function(require,module,exports) {
-// https://github.com/tc39/proposal-object-getownpropertydescriptors
-var $export = require('./_export');
-var ownKeys = require('./_own-keys');
-var toIObject = require('./_to-iobject');
-var gOPD = require('./_object-gopd');
-var createProperty = require('./_create-property');
-
-$export($export.S, 'Object', {
-  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {
-    var O = toIObject(object);
-    var getDesc = gOPD.f;
-    var keys = ownKeys(O);
-    var result = {};
-    var i = 0;
-    var key, desc;
-    while (keys.length > i) {
-      desc = getDesc(O, key = keys[i++]);
-      if (desc !== undefined) createProperty(result, key, desc);
-    }
-    return result;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_own-keys":"../node_modules/core-js/modules/_own-keys.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_create-property":"../node_modules/core-js/modules/_create-property.js"}],"../node_modules/core-js/modules/_object-gopn-ext.js":[function(require,module,exports) {
-// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
-var toIObject = require('./_to-iobject');
-var gOPN = require('./_object-gopn').f;
-var toString = {}.toString;
-
-var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
-  ? Object.getOwnPropertyNames(window) : [];
-
-var getWindowNames = function (it) {
-  try {
-    return gOPN(it);
-  } catch (e) {
-    return windowNames.slice();
-  }
-};
-
-module.exports.f = function getOwnPropertyNames(it) {
-  return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));
-};
-
-},{"./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js"}],"../node_modules/core-js/modules/es6.object.get-own-property-names.js":[function(require,module,exports) {
-// 19.1.2.7 Object.getOwnPropertyNames(O)
-require('./_object-sap')('getOwnPropertyNames', function () {
-  return require('./_object-gopn-ext').f;
-});
-
-},{"./_object-sap":"../node_modules/core-js/modules/_object-sap.js","./_object-gopn-ext":"../node_modules/core-js/modules/_object-gopn-ext.js"}],"../node_modules/core-js/modules/es6.object.get-prototype-of.js":[function(require,module,exports) {
-// 19.1.2.9 Object.getPrototypeOf(O)
-var toObject = require('./_to-object');
-var $getPrototypeOf = require('./_object-gpo');
-
-require('./_object-sap')('getPrototypeOf', function () {
-  return function getPrototypeOf(it) {
-    return $getPrototypeOf(toObject(it));
-  };
-});
-
-},{"./_to-object":"../node_modules/core-js/modules/_to-object.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es7.object.lookup-getter.js":[function(require,module,exports) {
-'use strict';
-var $export = require('./_export');
-var toObject = require('./_to-object');
-var toPrimitive = require('./_to-primitive');
-var getPrototypeOf = require('./_object-gpo');
-var getOwnPropertyDescriptor = require('./_object-gopd').f;
-
-// B.2.2.4 Object.prototype.__lookupGetter__(P)
-require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
-  __lookupGetter__: function __lookupGetter__(P) {
-    var O = toObject(this);
-    var K = toPrimitive(P, true);
-    var D;
-    do {
-      if (D = getOwnPropertyDescriptor(O, K)) return D.get;
-    } while (O = getPrototypeOf(O));
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-forced-pam":"../node_modules/core-js/modules/_object-forced-pam.js"}],"../node_modules/core-js/modules/es7.object.lookup-setter.js":[function(require,module,exports) {
-'use strict';
-var $export = require('./_export');
-var toObject = require('./_to-object');
-var toPrimitive = require('./_to-primitive');
-var getPrototypeOf = require('./_object-gpo');
-var getOwnPropertyDescriptor = require('./_object-gopd').f;
-
-// B.2.2.5 Object.prototype.__lookupSetter__(P)
-require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
-  __lookupSetter__: function __lookupSetter__(P) {
-    var O = toObject(this);
-    var K = toPrimitive(P, true);
-    var D;
-    do {
-      if (D = getOwnPropertyDescriptor(O, K)) return D.set;
-    } while (O = getPrototypeOf(O));
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-forced-pam":"../node_modules/core-js/modules/_object-forced-pam.js"}],"../node_modules/core-js/modules/es6.object.prevent-extensions.js":[function(require,module,exports) {
-// 19.1.2.15 Object.preventExtensions(O)
-var isObject = require('./_is-object');
-var meta = require('./_meta').onFreeze;
-
-require('./_object-sap')('preventExtensions', function ($preventExtensions) {
-  return function preventExtensions(it) {
-    return $preventExtensions && isObject(it) ? $preventExtensions(meta(it)) : it;
-  };
-});
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.to-string.js":[function(require,module,exports) {
-'use strict';
-// 19.1.3.6 Object.prototype.toString()
-var classof = require('./_classof');
-var test = {};
-test[require('./_wks')('toStringTag')] = 'z';
-if (test + '' != '[object z]') {
-  require('./_redefine')(Object.prototype, 'toString', function toString() {
-    return '[object ' + classof(this) + ']';
-  }, true);
-}
-
-},{"./_classof":"../node_modules/core-js/modules/_classof.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_redefine":"../node_modules/core-js/modules/_redefine.js"}],"../node_modules/core-js/modules/_same-value.js":[function(require,module,exports) {
-// 7.2.9 SameValue(x, y)
-module.exports = Object.is || function is(x, y) {
-  // eslint-disable-next-line no-self-compare
-  return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;
-};
-
-},{}],"../node_modules/core-js/modules/es6.object.is.js":[function(require,module,exports) {
-// 19.1.3.10 Object.is(value1, value2)
-var $export = require('./_export');
-$export($export.S, 'Object', { is: require('./_same-value') });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_same-value":"../node_modules/core-js/modules/_same-value.js"}],"../node_modules/core-js/modules/es6.object.is-frozen.js":[function(require,module,exports) {
-// 19.1.2.12 Object.isFrozen(O)
-var isObject = require('./_is-object');
-
-require('./_object-sap')('isFrozen', function ($isFrozen) {
-  return function isFrozen(it) {
-    return isObject(it) ? $isFrozen ? $isFrozen(it) : false : true;
-  };
-});
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.is-sealed.js":[function(require,module,exports) {
-// 19.1.2.13 Object.isSealed(O)
-var isObject = require('./_is-object');
-
-require('./_object-sap')('isSealed', function ($isSealed) {
-  return function isSealed(it) {
-    return isObject(it) ? $isSealed ? $isSealed(it) : false : true;
-  };
-});
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.is-extensible.js":[function(require,module,exports) {
-// 19.1.2.11 Object.isExtensible(O)
-var isObject = require('./_is-object');
-
-require('./_object-sap')('isExtensible', function ($isExtensible) {
-  return function isExtensible(it) {
-    return isObject(it) ? $isExtensible ? $isExtensible(it) : true : false;
-  };
-});
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.keys.js":[function(require,module,exports) {
-// 19.1.2.14 Object.keys(O)
-var toObject = require('./_to-object');
-var $keys = require('./_object-keys');
-
-require('./_object-sap')('keys', function () {
-  return function keys(it) {
-    return $keys(toObject(it));
-  };
-});
-
-},{"./_to-object":"../node_modules/core-js/modules/_to-object.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.seal.js":[function(require,module,exports) {
-// 19.1.2.17 Object.seal(O)
-var isObject = require('./_is-object');
-var meta = require('./_meta').onFreeze;
-
-require('./_object-sap')('seal', function ($seal) {
-  return function seal(it) {
-    return $seal && isObject(it) ? $seal(meta(it)) : it;
-  };
-});
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_object-sap":"../node_modules/core-js/modules/_object-sap.js"}],"../node_modules/core-js/modules/es6.object.set-prototype-of.js":[function(require,module,exports) {
-// 19.1.3.19 Object.setPrototypeOf(O, proto)
-var $export = require('./_export');
-$export($export.S, 'Object', { setPrototypeOf: require('./_set-proto').set });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_set-proto":"../node_modules/core-js/modules/_set-proto.js"}],"../node_modules/core-js/modules/es7.object.values.js":[function(require,module,exports) {
-// https://github.com/tc39/proposal-object-values-entries
-var $export = require('./_export');
-var $values = require('./_object-to-array')(false);
-
-$export($export.S, 'Object', {
-  values: function values(it) {
-    return $values(it);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-to-array":"../node_modules/core-js/modules/_object-to-array.js"}],"../node_modules/core-js/modules/_species-constructor.js":[function(require,module,exports) {
-// 7.3.20 SpeciesConstructor(O, defaultConstructor)
-var anObject = require('./_an-object');
-var aFunction = require('./_a-function');
-var SPECIES = require('./_wks')('species');
-module.exports = function (O, D) {
-  var C = anObject(O).constructor;
-  var S;
-  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);
-};
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_invoke.js":[function(require,module,exports) {
-// fast apply, http://jsperf.lnkit.com/fast-apply/5
-module.exports = function (fn, args, that) {
-  var un = that === undefined;
-  switch (args.length) {
-    case 0: return un ? fn()
-                      : fn.call(that);
-    case 1: return un ? fn(args[0])
-                      : fn.call(that, args[0]);
-    case 2: return un ? fn(args[0], args[1])
-                      : fn.call(that, args[0], args[1]);
-    case 3: return un ? fn(args[0], args[1], args[2])
-                      : fn.call(that, args[0], args[1], args[2]);
-    case 4: return un ? fn(args[0], args[1], args[2], args[3])
-                      : fn.call(that, args[0], args[1], args[2], args[3]);
-  } return fn.apply(that, args);
-};
-
-},{}],"../node_modules/core-js/modules/_task.js":[function(require,module,exports) {
-
-
-var ctx = require('./_ctx');
-var invoke = require('./_invoke');
-var html = require('./_html');
-var cel = require('./_dom-create');
-var global = require('./_global');
-var process = global.process;
-var setTask = global.setImmediate;
-var clearTask = global.clearImmediate;
-var MessageChannel = global.MessageChannel;
-var Dispatch = global.Dispatch;
-var counter = 0;
-var queue = {};
-var ONREADYSTATECHANGE = 'onreadystatechange';
-var defer, channel, port;
-var run = function () {
-  var id = +this;
-  // eslint-disable-next-line no-prototype-builtins
-  if (queue.hasOwnProperty(id)) {
-    var fn = queue[id];
-    delete queue[id];
-    fn();
-  }
-};
-var listener = function (event) {
-  run.call(event.data);
-};
-// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
-if (!setTask || !clearTask) {
-  setTask = function setImmediate(fn) {
-    var args = [];
-    var i = 1;
-    while (arguments.length > i) args.push(arguments[i++]);
-    queue[++counter] = function () {
-      // eslint-disable-next-line no-new-func
-      invoke(typeof fn == 'function' ? fn : Function(fn), args);
-    };
-    defer(counter);
-    return counter;
-  };
-  clearTask = function clearImmediate(id) {
-    delete queue[id];
-  };
-  // Node.js 0.8-
-  if (require('./_cof')(process) == 'process') {
-    defer = function (id) {
-      process.nextTick(ctx(run, id, 1));
-    };
-  // Sphere (JS game engine) Dispatch API
-  } else if (Dispatch && Dispatch.now) {
-    defer = function (id) {
-      Dispatch.now(ctx(run, id, 1));
-    };
-  // Browsers with MessageChannel, includes WebWorkers
-  } else if (MessageChannel) {
-    channel = new MessageChannel();
-    port = channel.port2;
-    channel.port1.onmessage = listener;
-    defer = ctx(port.postMessage, port, 1);
-  // Browsers with postMessage, skip WebWorkers
-  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
-  } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {
-    defer = function (id) {
-      global.postMessage(id + '', '*');
-    };
-    global.addEventListener('message', listener, false);
-  // IE8-
-  } else if (ONREADYSTATECHANGE in cel('script')) {
-    defer = function (id) {
-      html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {
-        html.removeChild(this);
-        run.call(id);
-      };
-    };
-  // Rest old browsers
-  } else {
-    defer = function (id) {
-      setTimeout(ctx(run, id, 1), 0);
-    };
-  }
-}
-module.exports = {
-  set: setTask,
-  clear: clearTask
-};
-
-},{"./_ctx":"../node_modules/core-js/modules/_ctx.js","./_invoke":"../node_modules/core-js/modules/_invoke.js","./_html":"../node_modules/core-js/modules/_html.js","./_dom-create":"../node_modules/core-js/modules/_dom-create.js","./_global":"../node_modules/core-js/modules/_global.js","./_cof":"../node_modules/core-js/modules/_cof.js"}],"../node_modules/core-js/modules/_microtask.js":[function(require,module,exports) {
-
-
-var global = require('./_global');
-var macrotask = require('./_task').set;
-var Observer = global.MutationObserver || global.WebKitMutationObserver;
-var process = global.process;
-var Promise = global.Promise;
-var isNode = require('./_cof')(process) == 'process';
-
-module.exports = function () {
-  var head, last, notify;
-
-  var flush = function () {
-    var parent, fn;
-    if (isNode && (parent = process.domain)) parent.exit();
-    while (head) {
-      fn = head.fn;
-      head = head.next;
-      try {
-        fn();
-      } catch (e) {
-        if (head) notify();
-        else last = undefined;
-        throw e;
-      }
-    } last = undefined;
-    if (parent) parent.enter();
-  };
-
-  // Node.js
-  if (isNode) {
-    notify = function () {
-      process.nextTick(flush);
-    };
-  // browsers with MutationObserver, except iOS Safari - https://github.com/zloirock/core-js/issues/339
-  } else if (Observer && !(global.navigator && global.navigator.standalone)) {
-    var toggle = true;
-    var node = document.createTextNode('');
-    new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new
-    notify = function () {
-      node.data = toggle = !toggle;
-    };
-  // environments with maybe non-completely correct, but existent Promise
-  } else if (Promise && Promise.resolve) {
-    // Promise.resolve without an argument throws an error in LG WebOS 2
-    var promise = Promise.resolve(undefined);
-    notify = function () {
-      promise.then(flush);
-    };
-  // for other environments - macrotask based on:
-  // - setImmediate
-  // - MessageChannel
-  // - window.postMessag
-  // - onreadystatechange
-  // - setTimeout
-  } else {
-    notify = function () {
-      // strange IE + webpack dev server bug - use .call(global)
-      macrotask.call(global, flush);
-    };
-  }
-
-  return function (fn) {
-    var task = { fn: fn, next: undefined };
-    if (last) last.next = task;
-    if (!head) {
-      head = task;
-      notify();
-    } last = task;
-  };
-};
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_task":"../node_modules/core-js/modules/_task.js","./_cof":"../node_modules/core-js/modules/_cof.js"}],"../node_modules/core-js/modules/_new-promise-capability.js":[function(require,module,exports) {
-'use strict';
-// 25.4.1.5 NewPromiseCapability(C)
-var aFunction = require('./_a-function');
-
-function PromiseCapability(C) {
-  var resolve, reject;
-  this.promise = new C(function ($$resolve, $$reject) {
-    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
-    resolve = $$resolve;
-    reject = $$reject;
-  });
-  this.resolve = aFunction(resolve);
-  this.reject = aFunction(reject);
-}
-
-module.exports.f = function (C) {
-  return new PromiseCapability(C);
-};
-
-},{"./_a-function":"../node_modules/core-js/modules/_a-function.js"}],"../node_modules/core-js/modules/_perform.js":[function(require,module,exports) {
-module.exports = function (exec) {
-  try {
-    return { e: false, v: exec() };
-  } catch (e) {
-    return { e: true, v: e };
-  }
-};
-
-},{}],"../node_modules/core-js/modules/_user-agent.js":[function(require,module,exports) {
-
-var global = require('./_global');
-var navigator = global.navigator;
-
-module.exports = navigator && navigator.userAgent || '';
-
-},{"./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/_promise-resolve.js":[function(require,module,exports) {
-var anObject = require('./_an-object');
-var isObject = require('./_is-object');
-var newPromiseCapability = require('./_new-promise-capability');
-
-module.exports = function (C, x) {
-  anObject(C);
-  if (isObject(x) && x.constructor === C) return x;
-  var promiseCapability = newPromiseCapability.f(C);
-  var resolve = promiseCapability.resolve;
-  resolve(x);
-  return promiseCapability.promise;
-};
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_new-promise-capability":"../node_modules/core-js/modules/_new-promise-capability.js"}],"../node_modules/core-js/modules/es6.promise.js":[function(require,module,exports) {
-
-
-'use strict';
-var LIBRARY = require('./_library');
-var global = require('./_global');
-var ctx = require('./_ctx');
-var classof = require('./_classof');
-var $export = require('./_export');
-var isObject = require('./_is-object');
-var aFunction = require('./_a-function');
-var anInstance = require('./_an-instance');
-var forOf = require('./_for-of');
-var speciesConstructor = require('./_species-constructor');
-var task = require('./_task').set;
-var microtask = require('./_microtask')();
-var newPromiseCapabilityModule = require('./_new-promise-capability');
-var perform = require('./_perform');
-var userAgent = require('./_user-agent');
-var promiseResolve = require('./_promise-resolve');
-var PROMISE = 'Promise';
-var TypeError = global.TypeError;
-var process = global.process;
-var versions = process && process.versions;
-var v8 = versions && versions.v8 || '';
-var $Promise = global[PROMISE];
-var isNode = classof(process) == 'process';
-var empty = function () { /* empty */ };
-var Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;
-var newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;
-
-var USE_NATIVE = !!function () {
-  try {
-    // correct subclassing with @@species support
-    var promise = $Promise.resolve(1);
-    var FakePromise = (promise.constructor = {})[require('./_wks')('species')] = function (exec) {
-      exec(empty, empty);
-    };
-    // unhandled rejections tracking support, NodeJS Promise without it fails @@species test
-    return (isNode || typeof PromiseRejectionEvent == 'function')
-      && promise.then(empty) instanceof FakePromise
-      // v8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables
-      // https://bugs.chromium.org/p/chromium/issues/detail?id=830565
-      // we can't detect it synchronously, so just check versions
-      && v8.indexOf('6.6') !== 0
-      && userAgent.indexOf('Chrome/66') === -1;
-  } catch (e) { /* empty */ }
-}();
-
-// helpers
-var isThenable = function (it) {
-  var then;
-  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
-};
-var notify = function (promise, isReject) {
-  if (promise._n) return;
-  promise._n = true;
-  var chain = promise._c;
-  microtask(function () {
-    var value = promise._v;
-    var ok = promise._s == 1;
-    var i = 0;
-    var run = function (reaction) {
-      var handler = ok ? reaction.ok : reaction.fail;
-      var resolve = reaction.resolve;
-      var reject = reaction.reject;
-      var domain = reaction.domain;
-      var result, then, exited;
-      try {
-        if (handler) {
-          if (!ok) {
-            if (promise._h == 2) onHandleUnhandled(promise);
-            promise._h = 1;
-          }
-          if (handler === true) result = value;
-          else {
-            if (domain) domain.enter();
-            result = handler(value); // may throw
-            if (domain) {
-              domain.exit();
-              exited = true;
-            }
-          }
-          if (result === reaction.promise) {
-            reject(TypeError('Promise-chain cycle'));
-          } else if (then = isThenable(result)) {
-            then.call(result, resolve, reject);
-          } else resolve(result);
-        } else reject(value);
-      } catch (e) {
-        if (domain && !exited) domain.exit();
-        reject(e);
-      }
-    };
-    while (chain.length > i) run(chain[i++]); // variable length - can't use forEach
-    promise._c = [];
-    promise._n = false;
-    if (isReject && !promise._h) onUnhandled(promise);
-  });
-};
-var onUnhandled = function (promise) {
-  task.call(global, function () {
-    var value = promise._v;
-    var unhandled = isUnhandled(promise);
-    var result, handler, console;
-    if (unhandled) {
-      result = perform(function () {
-        if (isNode) {
-          process.emit('unhandledRejection', value, promise);
-        } else if (handler = global.onunhandledrejection) {
-          handler({ promise: promise, reason: value });
-        } else if ((console = global.console) && console.error) {
-          console.error('Unhandled promise rejection', value);
-        }
-      });
-      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should
-      promise._h = isNode || isUnhandled(promise) ? 2 : 1;
-    } promise._a = undefined;
-    if (unhandled && result.e) throw result.v;
-  });
-};
-var isUnhandled = function (promise) {
-  return promise._h !== 1 && (promise._a || promise._c).length === 0;
-};
-var onHandleUnhandled = function (promise) {
-  task.call(global, function () {
-    var handler;
-    if (isNode) {
-      process.emit('rejectionHandled', promise);
-    } else if (handler = global.onrejectionhandled) {
-      handler({ promise: promise, reason: promise._v });
-    }
-  });
-};
-var $reject = function (value) {
-  var promise = this;
-  if (promise._d) return;
-  promise._d = true;
-  promise = promise._w || promise; // unwrap
-  promise._v = value;
-  promise._s = 2;
-  if (!promise._a) promise._a = promise._c.slice();
-  notify(promise, true);
-};
-var $resolve = function (value) {
-  var promise = this;
-  var then;
-  if (promise._d) return;
-  promise._d = true;
-  promise = promise._w || promise; // unwrap
-  try {
-    if (promise === value) throw TypeError("Promise can't be resolved itself");
-    if (then = isThenable(value)) {
-      microtask(function () {
-        var wrapper = { _w: promise, _d: false }; // wrap
-        try {
-          then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));
-        } catch (e) {
-          $reject.call(wrapper, e);
-        }
-      });
-    } else {
-      promise._v = value;
-      promise._s = 1;
-      notify(promise, false);
-    }
-  } catch (e) {
-    $reject.call({ _w: promise, _d: false }, e); // wrap
-  }
-};
-
-// constructor polyfill
-if (!USE_NATIVE) {
-  // 25.4.3.1 Promise(executor)
-  $Promise = function Promise(executor) {
-    anInstance(this, $Promise, PROMISE, '_h');
-    aFunction(executor);
-    Internal.call(this);
-    try {
-      executor(ctx($resolve, this, 1), ctx($reject, this, 1));
-    } catch (err) {
-      $reject.call(this, err);
-    }
-  };
-  // eslint-disable-next-line no-unused-vars
-  Internal = function Promise(executor) {
-    this._c = [];             // <- awaiting reactions
-    this._a = undefined;      // <- checked in isUnhandled reactions
-    this._s = 0;              // <- state
-    this._d = false;          // <- done
-    this._v = undefined;      // <- value
-    this._h = 0;              // <- rejection state, 0 - default, 1 - handled, 2 - unhandled
-    this._n = false;          // <- notify
-  };
-  Internal.prototype = require('./_redefine-all')($Promise.prototype, {
-    // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)
-    then: function then(onFulfilled, onRejected) {
-      var reaction = newPromiseCapability(speciesConstructor(this, $Promise));
-      reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;
-      reaction.fail = typeof onRejected == 'function' && onRejected;
-      reaction.domain = isNode ? process.domain : undefined;
-      this._c.push(reaction);
-      if (this._a) this._a.push(reaction);
-      if (this._s) notify(this, false);
-      return reaction.promise;
-    },
-    // 25.4.5.1 Promise.prototype.catch(onRejected)
-    'catch': function (onRejected) {
-      return this.then(undefined, onRejected);
-    }
-  });
-  OwnPromiseCapability = function () {
-    var promise = new Internal();
-    this.promise = promise;
-    this.resolve = ctx($resolve, promise, 1);
-    this.reject = ctx($reject, promise, 1);
-  };
-  newPromiseCapabilityModule.f = newPromiseCapability = function (C) {
-    return C === $Promise || C === Wrapper
-      ? new OwnPromiseCapability(C)
-      : newGenericPromiseCapability(C);
-  };
-}
-
-$export($export.G + $export.W + $export.F * !USE_NATIVE, { Promise: $Promise });
-require('./_set-to-string-tag')($Promise, PROMISE);
-require('./_set-species')(PROMISE);
-Wrapper = require('./_core')[PROMISE];
-
-// statics
-$export($export.S + $export.F * !USE_NATIVE, PROMISE, {
-  // 25.4.4.5 Promise.reject(r)
-  reject: function reject(r) {
-    var capability = newPromiseCapability(this);
-    var $$reject = capability.reject;
-    $$reject(r);
-    return capability.promise;
-  }
-});
-$export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {
-  // 25.4.4.6 Promise.resolve(x)
-  resolve: function resolve(x) {
-    return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);
-  }
-});
-$export($export.S + $export.F * !(USE_NATIVE && require('./_iter-detect')(function (iter) {
-  $Promise.all(iter)['catch'](empty);
-})), PROMISE, {
-  // 25.4.4.1 Promise.all(iterable)
-  all: function all(iterable) {
-    var C = this;
-    var capability = newPromiseCapability(C);
-    var resolve = capability.resolve;
-    var reject = capability.reject;
-    var result = perform(function () {
-      var values = [];
-      var index = 0;
-      var remaining = 1;
-      forOf(iterable, false, function (promise) {
-        var $index = index++;
-        var alreadyCalled = false;
-        values.push(undefined);
-        remaining++;
-        C.resolve(promise).then(function (value) {
-          if (alreadyCalled) return;
-          alreadyCalled = true;
-          values[$index] = value;
-          --remaining || resolve(values);
-        }, reject);
-      });
-      --remaining || resolve(values);
-    });
-    if (result.e) reject(result.v);
-    return capability.promise;
-  },
-  // 25.4.4.4 Promise.race(iterable)
-  race: function race(iterable) {
-    var C = this;
-    var capability = newPromiseCapability(C);
-    var reject = capability.reject;
-    var result = perform(function () {
-      forOf(iterable, false, function (promise) {
-        C.resolve(promise).then(capability.resolve, reject);
-      });
-    });
-    if (result.e) reject(result.v);
-    return capability.promise;
-  }
-});
-
-},{"./_library":"../node_modules/core-js/modules/_library.js","./_global":"../node_modules/core-js/modules/_global.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_classof":"../node_modules/core-js/modules/_classof.js","./_export":"../node_modules/core-js/modules/_export.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_for-of":"../node_modules/core-js/modules/_for-of.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./_task":"../node_modules/core-js/modules/_task.js","./_microtask":"../node_modules/core-js/modules/_microtask.js","./_new-promise-capability":"../node_modules/core-js/modules/_new-promise-capability.js","./_perform":"../node_modules/core-js/modules/_perform.js","./_user-agent":"../node_modules/core-js/modules/_user-agent.js","./_promise-resolve":"../node_modules/core-js/modules/_promise-resolve.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_set-species":"../node_modules/core-js/modules/_set-species.js","./_core":"../node_modules/core-js/modules/_core.js","./_iter-detect":"../node_modules/core-js/modules/_iter-detect.js"}],"../node_modules/core-js/modules/es7.promise.finally.js":[function(require,module,exports) {
-
-// https://github.com/tc39/proposal-promise-finally
-'use strict';
-var $export = require('./_export');
-var core = require('./_core');
-var global = require('./_global');
-var speciesConstructor = require('./_species-constructor');
-var promiseResolve = require('./_promise-resolve');
-
-$export($export.P + $export.R, 'Promise', { 'finally': function (onFinally) {
-  var C = speciesConstructor(this, core.Promise || global.Promise);
-  var isFunction = typeof onFinally == 'function';
-  return this.then(
-    isFunction ? function (x) {
-      return promiseResolve(C, onFinally()).then(function () { return x; });
-    } : onFinally,
-    isFunction ? function (e) {
-      return promiseResolve(C, onFinally()).then(function () { throw e; });
-    } : onFinally
-  );
-} });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_core":"../node_modules/core-js/modules/_core.js","./_global":"../node_modules/core-js/modules/_global.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./_promise-resolve":"../node_modules/core-js/modules/_promise-resolve.js"}],"../node_modules/core-js/modules/es6.reflect.apply.js":[function(require,module,exports) {
-// 26.1.1 Reflect.apply(target, thisArgument, argumentsList)
-var $export = require('./_export');
-var aFunction = require('./_a-function');
-var anObject = require('./_an-object');
-var rApply = (require('./_global').Reflect || {}).apply;
-var fApply = Function.apply;
-// MS Edge argumentsList argument is optional
-$export($export.S + $export.F * !require('./_fails')(function () {
-  rApply(function () { /* empty */ });
-}), 'Reflect', {
-  apply: function apply(target, thisArgument, argumentsList) {
-    var T = aFunction(target);
-    var L = anObject(argumentsList);
-    return rApply ? rApply(T, thisArgument, L) : fApply.call(T, thisArgument, L);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_global":"../node_modules/core-js/modules/_global.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/_bind.js":[function(require,module,exports) {
-'use strict';
-var aFunction = require('./_a-function');
-var isObject = require('./_is-object');
-var invoke = require('./_invoke');
-var arraySlice = [].slice;
-var factories = {};
-
-var construct = function (F, len, args) {
-  if (!(len in factories)) {
-    for (var n = [], i = 0; i < len; i++) n[i] = 'a[' + i + ']';
-    // eslint-disable-next-line no-new-func
-    factories[len] = Function('F,a', 'return new F(' + n.join(',') + ')');
-  } return factories[len](F, args);
-};
-
-module.exports = Function.bind || function bind(that /* , ...args */) {
-  var fn = aFunction(this);
-  var partArgs = arraySlice.call(arguments, 1);
-  var bound = function (/* args... */) {
-    var args = partArgs.concat(arraySlice.call(arguments));
-    return this instanceof bound ? construct(fn, args.length, args) : invoke(fn, args, that);
-  };
-  if (isObject(fn.prototype)) bound.prototype = fn.prototype;
-  return bound;
-};
-
-},{"./_a-function":"../node_modules/core-js/modules/_a-function.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_invoke":"../node_modules/core-js/modules/_invoke.js"}],"../node_modules/core-js/modules/es6.reflect.construct.js":[function(require,module,exports) {
-// 26.1.2 Reflect.construct(target, argumentsList [, newTarget])
-var $export = require('./_export');
-var create = require('./_object-create');
-var aFunction = require('./_a-function');
-var anObject = require('./_an-object');
-var isObject = require('./_is-object');
-var fails = require('./_fails');
-var bind = require('./_bind');
-var rConstruct = (require('./_global').Reflect || {}).construct;
-
-// MS Edge supports only 2 arguments and argumentsList argument is optional
-// FF Nightly sets third argument as `new.target`, but does not create `this` from it
-var NEW_TARGET_BUG = fails(function () {
-  function F() { /* empty */ }
-  return !(rConstruct(function () { /* empty */ }, [], F) instanceof F);
-});
-var ARGS_BUG = !fails(function () {
-  rConstruct(function () { /* empty */ });
-});
-
-$export($export.S + $export.F * (NEW_TARGET_BUG || ARGS_BUG), 'Reflect', {
-  construct: function construct(Target, args /* , newTarget */) {
-    aFunction(Target);
-    anObject(args);
-    var newTarget = arguments.length < 3 ? Target : aFunction(arguments[2]);
-    if (ARGS_BUG && !NEW_TARGET_BUG) return rConstruct(Target, args, newTarget);
-    if (Target == newTarget) {
-      // w/o altered newTarget, optimization for 0-4 arguments
-      switch (args.length) {
-        case 0: return new Target();
-        case 1: return new Target(args[0]);
-        case 2: return new Target(args[0], args[1]);
-        case 3: return new Target(args[0], args[1], args[2]);
-        case 4: return new Target(args[0], args[1], args[2], args[3]);
-      }
-      // w/o altered newTarget, lot of arguments case
-      var $args = [null];
-      $args.push.apply($args, args);
-      return new (bind.apply(Target, $args))();
-    }
-    // with altered newTarget, not support built-in constructors
-    var proto = newTarget.prototype;
-    var instance = create(isObject(proto) ? proto : Object.prototype);
-    var result = Function.apply.call(Target, instance, args);
-    return isObject(result) ? result : instance;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_a-function":"../node_modules/core-js/modules/_a-function.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_bind":"../node_modules/core-js/modules/_bind.js","./_global":"../node_modules/core-js/modules/_global.js"}],"../node_modules/core-js/modules/es6.reflect.define-property.js":[function(require,module,exports) {
-// 26.1.3 Reflect.defineProperty(target, propertyKey, attributes)
-var dP = require('./_object-dp');
-var $export = require('./_export');
-var anObject = require('./_an-object');
-var toPrimitive = require('./_to-primitive');
-
-// MS Edge has broken Reflect.defineProperty - throwing instead of returning false
-$export($export.S + $export.F * require('./_fails')(function () {
-  // eslint-disable-next-line no-undef
-  Reflect.defineProperty(dP.f({}, 1, { value: 1 }), 1, { value: 2 });
-}), 'Reflect', {
-  defineProperty: function defineProperty(target, propertyKey, attributes) {
-    anObject(target);
-    propertyKey = toPrimitive(propertyKey, true);
-    anObject(attributes);
-    try {
-      dP.f(target, propertyKey, attributes);
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-});
-
-},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_export":"../node_modules/core-js/modules/_export.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.reflect.delete-property.js":[function(require,module,exports) {
-// 26.1.4 Reflect.deleteProperty(target, propertyKey)
-var $export = require('./_export');
-var gOPD = require('./_object-gopd').f;
-var anObject = require('./_an-object');
-
-$export($export.S, 'Reflect', {
-  deleteProperty: function deleteProperty(target, propertyKey) {
-    var desc = gOPD(anObject(target), propertyKey);
-    return desc && !desc.configurable ? false : delete target[propertyKey];
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.get.js":[function(require,module,exports) {
-// 26.1.6 Reflect.get(target, propertyKey [, receiver])
-var gOPD = require('./_object-gopd');
-var getPrototypeOf = require('./_object-gpo');
-var has = require('./_has');
-var $export = require('./_export');
-var isObject = require('./_is-object');
-var anObject = require('./_an-object');
-
-function get(target, propertyKey /* , receiver */) {
-  var receiver = arguments.length < 3 ? target : arguments[2];
-  var desc, proto;
-  if (anObject(target) === receiver) return target[propertyKey];
-  if (desc = gOPD.f(target, propertyKey)) return has(desc, 'value')
-    ? desc.value
-    : desc.get !== undefined
-      ? desc.get.call(receiver)
-      : undefined;
-  if (isObject(proto = getPrototypeOf(target))) return get(proto, propertyKey, receiver);
-}
-
-$export($export.S, 'Reflect', { get: get });
-
-},{"./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_has":"../node_modules/core-js/modules/_has.js","./_export":"../node_modules/core-js/modules/_export.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.get-own-property-descriptor.js":[function(require,module,exports) {
-// 26.1.7 Reflect.getOwnPropertyDescriptor(target, propertyKey)
-var gOPD = require('./_object-gopd');
-var $export = require('./_export');
-var anObject = require('./_an-object');
-
-$export($export.S, 'Reflect', {
-  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(target, propertyKey) {
-    return gOPD.f(anObject(target), propertyKey);
-  }
-});
-
-},{"./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_export":"../node_modules/core-js/modules/_export.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.get-prototype-of.js":[function(require,module,exports) {
-// 26.1.8 Reflect.getPrototypeOf(target)
-var $export = require('./_export');
-var getProto = require('./_object-gpo');
-var anObject = require('./_an-object');
-
-$export($export.S, 'Reflect', {
-  getPrototypeOf: function getPrototypeOf(target) {
-    return getProto(anObject(target));
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.has.js":[function(require,module,exports) {
-// 26.1.9 Reflect.has(target, propertyKey)
-var $export = require('./_export');
-
-$export($export.S, 'Reflect', {
-  has: function has(target, propertyKey) {
-    return propertyKey in target;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/es6.reflect.is-extensible.js":[function(require,module,exports) {
-// 26.1.10 Reflect.isExtensible(target)
-var $export = require('./_export');
-var anObject = require('./_an-object');
-var $isExtensible = Object.isExtensible;
-
-$export($export.S, 'Reflect', {
-  isExtensible: function isExtensible(target) {
-    anObject(target);
-    return $isExtensible ? $isExtensible(target) : true;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.own-keys.js":[function(require,module,exports) {
-// 26.1.11 Reflect.ownKeys(target)
-var $export = require('./_export');
-
-$export($export.S, 'Reflect', { ownKeys: require('./_own-keys') });
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_own-keys":"../node_modules/core-js/modules/_own-keys.js"}],"../node_modules/core-js/modules/es6.reflect.prevent-extensions.js":[function(require,module,exports) {
-// 26.1.12 Reflect.preventExtensions(target)
-var $export = require('./_export');
-var anObject = require('./_an-object');
-var $preventExtensions = Object.preventExtensions;
-
-$export($export.S, 'Reflect', {
-  preventExtensions: function preventExtensions(target) {
-    anObject(target);
-    try {
-      if ($preventExtensions) $preventExtensions(target);
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.reflect.set.js":[function(require,module,exports) {
-// 26.1.13 Reflect.set(target, propertyKey, V [, receiver])
-var dP = require('./_object-dp');
-var gOPD = require('./_object-gopd');
-var getPrototypeOf = require('./_object-gpo');
-var has = require('./_has');
-var $export = require('./_export');
-var createDesc = require('./_property-desc');
-var anObject = require('./_an-object');
-var isObject = require('./_is-object');
-
-function set(target, propertyKey, V /* , receiver */) {
-  var receiver = arguments.length < 4 ? target : arguments[3];
-  var ownDesc = gOPD.f(anObject(target), propertyKey);
-  var existingDescriptor, proto;
-  if (!ownDesc) {
-    if (isObject(proto = getPrototypeOf(target))) {
-      return set(proto, propertyKey, V, receiver);
-    }
-    ownDesc = createDesc(0);
-  }
-  if (has(ownDesc, 'value')) {
-    if (ownDesc.writable === false || !isObject(receiver)) return false;
-    if (existingDescriptor = gOPD.f(receiver, propertyKey)) {
-      if (existingDescriptor.get || existingDescriptor.set || existingDescriptor.writable === false) return false;
-      existingDescriptor.value = V;
-      dP.f(receiver, propertyKey, existingDescriptor);
-    } else dP.f(receiver, propertyKey, createDesc(0, V));
-    return true;
-  }
-  return ownDesc.set === undefined ? false : (ownDesc.set.call(receiver, V), true);
-}
-
-$export($export.S, 'Reflect', { set: set });
-
-},{"./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_has":"../node_modules/core-js/modules/_has.js","./_export":"../node_modules/core-js/modules/_export.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js"}],"../node_modules/core-js/modules/es6.reflect.set-prototype-of.js":[function(require,module,exports) {
-// 26.1.14 Reflect.setPrototypeOf(target, proto)
-var $export = require('./_export');
-var setProto = require('./_set-proto');
-
-if (setProto) $export($export.S, 'Reflect', {
-  setPrototypeOf: function setPrototypeOf(target, proto) {
-    setProto.check(target, proto);
-    try {
-      setProto.set(target, proto);
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_set-proto":"../node_modules/core-js/modules/_set-proto.js"}],"../node_modules/core-js/modules/_is-regexp.js":[function(require,module,exports) {
-// 7.2.8 IsRegExp(argument)
-var isObject = require('./_is-object');
-var cof = require('./_cof');
-var MATCH = require('./_wks')('match');
-module.exports = function (it) {
-  var isRegExp;
-  return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : cof(it) == 'RegExp');
-};
-
-},{"./_is-object":"../node_modules/core-js/modules/_is-object.js","./_cof":"../node_modules/core-js/modules/_cof.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_flags.js":[function(require,module,exports) {
-'use strict';
-// 21.2.5.3 get RegExp.prototype.flags
-var anObject = require('./_an-object');
-module.exports = function () {
-  var that = anObject(this);
-  var result = '';
-  if (that.global) result += 'g';
-  if (that.ignoreCase) result += 'i';
-  if (that.multiline) result += 'm';
-  if (that.unicode) result += 'u';
-  if (that.sticky) result += 'y';
-  return result;
-};
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js"}],"../node_modules/core-js/modules/es6.regexp.constructor.js":[function(require,module,exports) {
-
-var global = require('./_global');
-var inheritIfRequired = require('./_inherit-if-required');
-var dP = require('./_object-dp').f;
-var gOPN = require('./_object-gopn').f;
-var isRegExp = require('./_is-regexp');
-var $flags = require('./_flags');
-var $RegExp = global.RegExp;
-var Base = $RegExp;
-var proto = $RegExp.prototype;
-var re1 = /a/g;
-var re2 = /a/g;
-// "new" creates a new object, old webkit buggy here
-var CORRECT_NEW = new $RegExp(re1) !== re1;
-
-if (require('./_descriptors') && (!CORRECT_NEW || require('./_fails')(function () {
-  re2[require('./_wks')('match')] = false;
-  // RegExp constructor can alter flags and IsRegExp works correct with @@match
-  return $RegExp(re1) != re1 || $RegExp(re2) == re2 || $RegExp(re1, 'i') != '/a/i';
-}))) {
-  $RegExp = function RegExp(p, f) {
-    var tiRE = this instanceof $RegExp;
-    var piRE = isRegExp(p);
-    var fiU = f === undefined;
-    return !tiRE && piRE && p.constructor === $RegExp && fiU ? p
-      : inheritIfRequired(CORRECT_NEW
-        ? new Base(piRE && !fiU ? p.source : p, f)
-        : Base((piRE = p instanceof $RegExp) ? p.source : p, piRE && fiU ? $flags.call(p) : f)
-      , tiRE ? this : proto, $RegExp);
-  };
-  var proxy = function (key) {
-    key in $RegExp || dP($RegExp, key, {
-      configurable: true,
-      get: function () { return Base[key]; },
-      set: function (it) { Base[key] = it; }
-    });
-  };
-  for (var keys = gOPN(Base), i = 0; keys.length > i;) proxy(keys[i++]);
-  proto.constructor = $RegExp;
-  $RegExp.prototype = proto;
-  require('./_redefine')(global, 'RegExp', $RegExp);
-}
-
-require('./_set-species')('RegExp');
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_inherit-if-required":"../node_modules/core-js/modules/_inherit-if-required.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_is-regexp":"../node_modules/core-js/modules/_is-regexp.js","./_flags":"../node_modules/core-js/modules/_flags.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_set-species":"../node_modules/core-js/modules/_set-species.js"}],"../node_modules/core-js/modules/es6.regexp.flags.js":[function(require,module,exports) {
-// 21.2.5.3 get RegExp.prototype.flags()
-if (require('./_descriptors') && /./g.flags != 'g') require('./_object-dp').f(RegExp.prototype, 'flags', {
-  configurable: true,
-  get: require('./_flags')
-});
-
-},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_flags":"../node_modules/core-js/modules/_flags.js"}],"../node_modules/core-js/modules/_string-at.js":[function(require,module,exports) {
-var toInteger = require('./_to-integer');
-var defined = require('./_defined');
-// true  -> String#at
-// false -> String#codePointAt
-module.exports = function (TO_STRING) {
-  return function (that, pos) {
-    var s = String(defined(that));
-    var i = toInteger(pos);
-    var l = s.length;
-    var a, b;
-    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
-    a = s.charCodeAt(i);
-    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
-      ? TO_STRING ? s.charAt(i) : a
-      : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
-  };
-};
-
-},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_advance-string-index.js":[function(require,module,exports) {
-'use strict';
-var at = require('./_string-at')(true);
-
- // `AdvanceStringIndex` abstract operation
-// https://tc39.github.io/ecma262/#sec-advancestringindex
-module.exports = function (S, index, unicode) {
-  return index + (unicode ? at(S, index).length : 1);
-};
-
-},{"./_string-at":"../node_modules/core-js/modules/_string-at.js"}],"../node_modules/core-js/modules/_regexp-exec-abstract.js":[function(require,module,exports) {
-'use strict';
-
-var classof = require('./_classof');
-var builtinExec = RegExp.prototype.exec;
-
- // `RegExpExec` abstract operation
-// https://tc39.github.io/ecma262/#sec-regexpexec
-module.exports = function (R, S) {
-  var exec = R.exec;
-  if (typeof exec === 'function') {
-    var result = exec.call(R, S);
-    if (typeof result !== 'object') {
-      throw new TypeError('RegExp exec method returned something other than an Object or null');
-    }
-    return result;
-  }
-  if (classof(R) !== 'RegExp') {
-    throw new TypeError('RegExp#exec called on incompatible receiver');
-  }
-  return builtinExec.call(R, S);
-};
-
-},{"./_classof":"../node_modules/core-js/modules/_classof.js"}],"../node_modules/core-js/modules/_regexp-exec.js":[function(require,module,exports) {
-'use strict';
-
-var regexpFlags = require('./_flags');
-
-var nativeExec = RegExp.prototype.exec;
-// This always refers to the native implementation, because the
-// String#replace polyfill uses ./fix-regexp-well-known-symbol-logic.js,
-// which loads this file before patching the method.
-var nativeReplace = String.prototype.replace;
-
-var patchedExec = nativeExec;
-
-var LAST_INDEX = 'lastIndex';
-
-var UPDATES_LAST_INDEX_WRONG = (function () {
-  var re1 = /a/,
-      re2 = /b*/g;
-  nativeExec.call(re1, 'a');
-  nativeExec.call(re2, 'a');
-  return re1[LAST_INDEX] !== 0 || re2[LAST_INDEX] !== 0;
-})();
-
-// nonparticipating capturing group, copied from es5-shim's String#split patch.
-var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;
-
-var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED;
-
-if (PATCH) {
-  patchedExec = function exec(str) {
-    var re = this;
-    var lastIndex, reCopy, match, i;
-
-    if (NPCG_INCLUDED) {
-      reCopy = new RegExp('^' + re.source + '$(?!\\s)', regexpFlags.call(re));
-    }
-    if (UPDATES_LAST_INDEX_WRONG) lastIndex = re[LAST_INDEX];
-
-    match = nativeExec.call(re, str);
-
-    if (UPDATES_LAST_INDEX_WRONG && match) {
-      re[LAST_INDEX] = re.global ? match.index + match[0].length : lastIndex;
-    }
-    if (NPCG_INCLUDED && match && match.length > 1) {
-      // Fix browsers whose `exec` methods don't consistently return `undefined`
-      // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
-      // eslint-disable-next-line no-loop-func
-      nativeReplace.call(match[0], reCopy, function () {
-        for (i = 1; i < arguments.length - 2; i++) {
-          if (arguments[i] === undefined) match[i] = undefined;
-        }
-      });
-    }
-
-    return match;
-  };
-}
-
-module.exports = patchedExec;
-
-},{"./_flags":"../node_modules/core-js/modules/_flags.js"}],"../node_modules/core-js/modules/es6.regexp.exec.js":[function(require,module,exports) {
-'use strict';
-var regexpExec = require('./_regexp-exec');
-require('./_export')({
-  target: 'RegExp',
-  proto: true,
-  forced: regexpExec !== /./.exec
-}, {
-  exec: regexpExec
-});
-
-},{"./_regexp-exec":"../node_modules/core-js/modules/_regexp-exec.js","./_export":"../node_modules/core-js/modules/_export.js"}],"../node_modules/core-js/modules/_fix-re-wks.js":[function(require,module,exports) {
-'use strict';
-require('./es6.regexp.exec');
-var redefine = require('./_redefine');
-var hide = require('./_hide');
-var fails = require('./_fails');
-var defined = require('./_defined');
-var wks = require('./_wks');
-var regexpExec = require('./_regexp-exec');
-
-var SPECIES = wks('species');
-
-var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
-  // #replace needs built-in support for named groups.
-  // #match works fine because it just return the exec results, even if it has
-  // a "grops" property.
-  var re = /./;
-  re.exec = function () {
-    var result = [];
-    result.groups = { a: '7' };
-    return result;
-  };
-  return ''.replace(re, '$<a>') !== '7';
-});
-
-var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = (function () {
-  // Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
-  var re = /(?:)/;
-  var originalExec = re.exec;
-  re.exec = function () { return originalExec.apply(this, arguments); };
-  var result = 'ab'.split(re);
-  return result.length === 2 && result[0] === 'a' && result[1] === 'b';
-})();
-
-module.exports = function (KEY, length, exec) {
-  var SYMBOL = wks(KEY);
-
-  var DELEGATES_TO_SYMBOL = !fails(function () {
-    // String methods call symbol-named RegEp methods
-    var O = {};
-    O[SYMBOL] = function () { return 7; };
-    return ''[KEY](O) != 7;
-  });
-
-  var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL ? !fails(function () {
-    // Symbol-named RegExp methods call .exec
-    var execCalled = false;
-    var re = /a/;
-    re.exec = function () { execCalled = true; return null; };
-    if (KEY === 'split') {
-      // RegExp[@@split] doesn't call the regex's exec method, but first creates
-      // a new one. We need to return the patched regex when creating the new one.
-      re.constructor = {};
-      re.constructor[SPECIES] = function () { return re; };
-    }
-    re[SYMBOL]('');
-    return !execCalled;
-  }) : undefined;
-
-  if (
-    !DELEGATES_TO_SYMBOL ||
-    !DELEGATES_TO_EXEC ||
-    (KEY === 'replace' && !REPLACE_SUPPORTS_NAMED_GROUPS) ||
-    (KEY === 'split' && !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC)
-  ) {
-    var nativeRegExpMethod = /./[SYMBOL];
-    var fns = exec(
-      defined,
-      SYMBOL,
-      ''[KEY],
-      function maybeCallNative(nativeMethod, regexp, str, arg2, forceStringMethod) {
-        if (regexp.exec === regexpExec) {
-          if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
-            // The native String method already delegates to @@method (this
-            // polyfilled function), leasing to infinite recursion.
-            // We avoid it by directly calling the native @@method method.
-            return { done: true, value: nativeRegExpMethod.call(regexp, str, arg2) };
-          }
-          return { done: true, value: nativeMethod.call(str, regexp, arg2) };
-        }
-        return { done: false };
-      }
-    );
-    var strfn = fns[0];
-    var rxfn = fns[1];
-
-    redefine(String.prototype, KEY, strfn);
-    hide(RegExp.prototype, SYMBOL, length == 2
-      // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
-      // 21.2.5.11 RegExp.prototype[@@split](string, limit)
-      ? function (string, arg) { return rxfn.call(string, this, arg); }
-      // 21.2.5.6 RegExp.prototype[@@match](string)
-      // 21.2.5.9 RegExp.prototype[@@search](string)
-      : function (string) { return rxfn.call(string, this); }
-    );
-  }
-};
-
-},{"./es6.regexp.exec":"../node_modules/core-js/modules/es6.regexp.exec.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_defined":"../node_modules/core-js/modules/_defined.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_regexp-exec":"../node_modules/core-js/modules/_regexp-exec.js"}],"../node_modules/core-js/modules/es6.regexp.match.js":[function(require,module,exports) {
-'use strict';
-
-var anObject = require('./_an-object');
-var toLength = require('./_to-length');
-var advanceStringIndex = require('./_advance-string-index');
-var regExpExec = require('./_regexp-exec-abstract');
-
-// @@match logic
-require('./_fix-re-wks')('match', 1, function (defined, MATCH, $match, maybeCallNative) {
-  return [
-    // `String.prototype.match` method
-    // https://tc39.github.io/ecma262/#sec-string.prototype.match
-    function match(regexp) {
-      var O = defined(this);
-      var fn = regexp == undefined ? undefined : regexp[MATCH];
-      return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
-    },
-    // `RegExp.prototype[@@match]` method
-    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match
-    function (regexp) {
-      var res = maybeCallNative($match, regexp, this);
-      if (res.done) return res.value;
-      var rx = anObject(regexp);
-      var S = String(this);
-      if (!rx.global) return regExpExec(rx, S);
-      var fullUnicode = rx.unicode;
-      rx.lastIndex = 0;
-      var A = [];
-      var n = 0;
-      var result;
-      while ((result = regExpExec(rx, S)) !== null) {
-        var matchStr = String(result[0]);
-        A[n] = matchStr;
-        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
-        n++;
-      }
-      return n === 0 ? null : A;
-    }
-  ];
-});
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_advance-string-index":"../node_modules/core-js/modules/_advance-string-index.js","./_regexp-exec-abstract":"../node_modules/core-js/modules/_regexp-exec-abstract.js","./_fix-re-wks":"../node_modules/core-js/modules/_fix-re-wks.js"}],"../node_modules/core-js/modules/es6.regexp.replace.js":[function(require,module,exports) {
-var global = arguments[3];
-'use strict';
-
-var anObject = require('./_an-object');
-var toObject = require('./_to-object');
-var toLength = require('./_to-length');
-var toInteger = require('./_to-integer');
-var advanceStringIndex = require('./_advance-string-index');
-var regExpExec = require('./_regexp-exec-abstract');
-var max = Math.max;
-var min = Math.min;
-var floor = Math.floor;
-var SUBSTITUTION_SYMBOLS = /\$([$&`']|\d\d?|<[^>]*>)/g;
-var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&`']|\d\d?)/g;
-
-var maybeToString = function (it) {
-  return it === undefined ? it : String(it);
-};
-
-// @@replace logic
-require('./_fix-re-wks')('replace', 2, function (defined, REPLACE, $replace, maybeCallNative) {
-  return [
-    // `String.prototype.replace` method
-    // https://tc39.github.io/ecma262/#sec-string.prototype.replace
-    function replace(searchValue, replaceValue) {
-      var O = defined(this);
-      var fn = searchValue == undefined ? undefined : searchValue[REPLACE];
-      return fn !== undefined
-        ? fn.call(searchValue, O, replaceValue)
-        : $replace.call(String(O), searchValue, replaceValue);
-    },
-    // `RegExp.prototype[@@replace]` method
-    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace
-    function (regexp, replaceValue) {
-      var res = maybeCallNative($replace, regexp, this, replaceValue);
-      if (res.done) return res.value;
-
-      var rx = anObject(regexp);
-      var S = String(this);
-      var functionalReplace = typeof replaceValue === 'function';
-      if (!functionalReplace) replaceValue = String(replaceValue);
-      var global = rx.global;
-      if (global) {
-        var fullUnicode = rx.unicode;
-        rx.lastIndex = 0;
-      }
-      var results = [];
-      while (true) {
-        var result = regExpExec(rx, S);
-        if (result === null) break;
-        results.push(result);
-        if (!global) break;
-        var matchStr = String(result[0]);
-        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
-      }
-      var accumulatedResult = '';
-      var nextSourcePosition = 0;
-      for (var i = 0; i < results.length; i++) {
-        result = results[i];
-        var matched = String(result[0]);
-        var position = max(min(toInteger(result.index), S.length), 0);
-        var captures = [];
-        // NOTE: This is equivalent to
-        //   captures = result.slice(1).map(maybeToString)
-        // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
-        // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
-        // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
-        for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
-        var namedCaptures = result.groups;
-        if (functionalReplace) {
-          var replacerArgs = [matched].concat(captures, position, S);
-          if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
-          var replacement = String(replaceValue.apply(undefined, replacerArgs));
-        } else {
-          replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
-        }
-        if (position >= nextSourcePosition) {
-          accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
-          nextSourcePosition = position + matched.length;
-        }
-      }
-      return accumulatedResult + S.slice(nextSourcePosition);
-    }
-  ];
-
-    // https://tc39.github.io/ecma262/#sec-getsubstitution
-  function getSubstitution(matched, str, position, captures, namedCaptures, replacement) {
-    var tailPos = position + matched.length;
-    var m = captures.length;
-    var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
-    if (namedCaptures !== undefined) {
-      namedCaptures = toObject(namedCaptures);
-      symbols = SUBSTITUTION_SYMBOLS;
-    }
-    return $replace.call(replacement, symbols, function (match, ch) {
-      var capture;
-      switch (ch.charAt(0)) {
-        case '$': return '$';
-        case '&': return matched;
-        case '`': return str.slice(0, position);
-        case "'": return str.slice(tailPos);
-        case '<':
-          capture = namedCaptures[ch.slice(1, -1)];
-          break;
-        default: // \d\d?
-          var n = +ch;
-          if (n === 0) return match;
-          if (n > m) {
-            var f = floor(n / 10);
-            if (f === 0) return match;
-            if (f <= m) return captures[f - 1] === undefined ? ch.charAt(1) : captures[f - 1] + ch.charAt(1);
-            return match;
-          }
-          capture = captures[n - 1];
-      }
-      return capture === undefined ? '' : capture;
-    });
-  }
-});
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_advance-string-index":"../node_modules/core-js/modules/_advance-string-index.js","./_regexp-exec-abstract":"../node_modules/core-js/modules/_regexp-exec-abstract.js","./_fix-re-wks":"../node_modules/core-js/modules/_fix-re-wks.js"}],"../node_modules/core-js/modules/es6.regexp.split.js":[function(require,module,exports) {
-'use strict';
-
-var isRegExp = require('./_is-regexp');
-var anObject = require('./_an-object');
-var speciesConstructor = require('./_species-constructor');
-var advanceStringIndex = require('./_advance-string-index');
-var toLength = require('./_to-length');
-var callRegExpExec = require('./_regexp-exec-abstract');
-var regexpExec = require('./_regexp-exec');
-var fails = require('./_fails');
-var $min = Math.min;
-var $push = [].push;
-var $SPLIT = 'split';
-var LENGTH = 'length';
-var LAST_INDEX = 'lastIndex';
-var MAX_UINT32 = 0xffffffff;
-
-// babel-minify transpiles RegExp('x', 'y') -> /x/y and it causes SyntaxError
-var SUPPORTS_Y = !fails(function () { RegExp(MAX_UINT32, 'y'); });
-
-// @@split logic
-require('./_fix-re-wks')('split', 2, function (defined, SPLIT, $split, maybeCallNative) {
-  var internalSplit;
-  if (
-    'abbc'[$SPLIT](/(b)*/)[1] == 'c' ||
-    'test'[$SPLIT](/(?:)/, -1)[LENGTH] != 4 ||
-    'ab'[$SPLIT](/(?:ab)*/)[LENGTH] != 2 ||
-    '.'[$SPLIT](/(.?)(.?)/)[LENGTH] != 4 ||
-    '.'[$SPLIT](/()()/)[LENGTH] > 1 ||
-    ''[$SPLIT](/.?/)[LENGTH]
-  ) {
-    // based on es5-shim implementation, need to rework it
-    internalSplit = function (separator, limit) {
-      var string = String(this);
-      if (separator === undefined && limit === 0) return [];
-      // If `separator` is not a regex, use native split
-      if (!isRegExp(separator)) return $split.call(string, separator, limit);
-      var output = [];
-      var flags = (separator.ignoreCase ? 'i' : '') +
-                  (separator.multiline ? 'm' : '') +
-                  (separator.unicode ? 'u' : '') +
-                  (separator.sticky ? 'y' : '');
-      var lastLastIndex = 0;
-      var splitLimit = limit === undefined ? MAX_UINT32 : limit >>> 0;
-      // Make `global` and avoid `lastIndex` issues by working with a copy
-      var separatorCopy = new RegExp(separator.source, flags + 'g');
-      var match, lastIndex, lastLength;
-      while (match = regexpExec.call(separatorCopy, string)) {
-        lastIndex = separatorCopy[LAST_INDEX];
-        if (lastIndex > lastLastIndex) {
-          output.push(string.slice(lastLastIndex, match.index));
-          if (match[LENGTH] > 1 && match.index < string[LENGTH]) $push.apply(output, match.slice(1));
-          lastLength = match[0][LENGTH];
-          lastLastIndex = lastIndex;
-          if (output[LENGTH] >= splitLimit) break;
-        }
-        if (separatorCopy[LAST_INDEX] === match.index) separatorCopy[LAST_INDEX]++; // Avoid an infinite loop
-      }
-      if (lastLastIndex === string[LENGTH]) {
-        if (lastLength || !separatorCopy.test('')) output.push('');
-      } else output.push(string.slice(lastLastIndex));
-      return output[LENGTH] > splitLimit ? output.slice(0, splitLimit) : output;
-    };
-  // Chakra, V8
-  } else if ('0'[$SPLIT](undefined, 0)[LENGTH]) {
-    internalSplit = function (separator, limit) {
-      return separator === undefined && limit === 0 ? [] : $split.call(this, separator, limit);
-    };
-  } else {
-    internalSplit = $split;
-  }
-
-  return [
-    // `String.prototype.split` method
-    // https://tc39.github.io/ecma262/#sec-string.prototype.split
-    function split(separator, limit) {
-      var O = defined(this);
-      var splitter = separator == undefined ? undefined : separator[SPLIT];
-      return splitter !== undefined
-        ? splitter.call(separator, O, limit)
-        : internalSplit.call(String(O), separator, limit);
-    },
-    // `RegExp.prototype[@@split]` method
-    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@split
-    //
-    // NOTE: This cannot be properly polyfilled in engines that don't support
-    // the 'y' flag.
-    function (regexp, limit) {
-      var res = maybeCallNative(internalSplit, regexp, this, limit, internalSplit !== $split);
-      if (res.done) return res.value;
-
-      var rx = anObject(regexp);
-      var S = String(this);
-      var C = speciesConstructor(rx, RegExp);
-
-      var unicodeMatching = rx.unicode;
-      var flags = (rx.ignoreCase ? 'i' : '') +
-                  (rx.multiline ? 'm' : '') +
-                  (rx.unicode ? 'u' : '') +
-                  (SUPPORTS_Y ? 'y' : 'g');
-
-      // ^(? + rx + ) is needed, in combination with some S slicing, to
-      // simulate the 'y' flag.
-      var splitter = new C(SUPPORTS_Y ? rx : '^(?:' + rx.source + ')', flags);
-      var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
-      if (lim === 0) return [];
-      if (S.length === 0) return callRegExpExec(splitter, S) === null ? [S] : [];
-      var p = 0;
-      var q = 0;
-      var A = [];
-      while (q < S.length) {
-        splitter.lastIndex = SUPPORTS_Y ? q : 0;
-        var z = callRegExpExec(splitter, SUPPORTS_Y ? S : S.slice(q));
-        var e;
-        if (
-          z === null ||
-          (e = $min(toLength(splitter.lastIndex + (SUPPORTS_Y ? 0 : q)), S.length)) === p
-        ) {
-          q = advanceStringIndex(S, q, unicodeMatching);
-        } else {
-          A.push(S.slice(p, q));
-          if (A.length === lim) return A;
-          for (var i = 1; i <= z.length - 1; i++) {
-            A.push(z[i]);
-            if (A.length === lim) return A;
-          }
-          q = p = e;
-        }
-      }
-      A.push(S.slice(p));
-      return A;
-    }
-  ];
-});
-
-},{"./_is-regexp":"../node_modules/core-js/modules/_is-regexp.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./_advance-string-index":"../node_modules/core-js/modules/_advance-string-index.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_regexp-exec-abstract":"../node_modules/core-js/modules/_regexp-exec-abstract.js","./_regexp-exec":"../node_modules/core-js/modules/_regexp-exec.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_fix-re-wks":"../node_modules/core-js/modules/_fix-re-wks.js"}],"../node_modules/core-js/modules/es6.regexp.search.js":[function(require,module,exports) {
-'use strict';
-
-var anObject = require('./_an-object');
-var sameValue = require('./_same-value');
-var regExpExec = require('./_regexp-exec-abstract');
-
-// @@search logic
-require('./_fix-re-wks')('search', 1, function (defined, SEARCH, $search, maybeCallNative) {
-  return [
-    // `String.prototype.search` method
-    // https://tc39.github.io/ecma262/#sec-string.prototype.search
-    function search(regexp) {
-      var O = defined(this);
-      var fn = regexp == undefined ? undefined : regexp[SEARCH];
-      return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));
-    },
-    // `RegExp.prototype[@@search]` method
-    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@search
-    function (regexp) {
-      var res = maybeCallNative($search, regexp, this);
-      if (res.done) return res.value;
-      var rx = anObject(regexp);
-      var S = String(this);
-      var previousLastIndex = rx.lastIndex;
-      if (!sameValue(previousLastIndex, 0)) rx.lastIndex = 0;
-      var result = regExpExec(rx, S);
-      if (!sameValue(rx.lastIndex, previousLastIndex)) rx.lastIndex = previousLastIndex;
-      return result === null ? -1 : result.index;
-    }
-  ];
-});
-
-},{"./_an-object":"../node_modules/core-js/modules/_an-object.js","./_same-value":"../node_modules/core-js/modules/_same-value.js","./_regexp-exec-abstract":"../node_modules/core-js/modules/_regexp-exec-abstract.js","./_fix-re-wks":"../node_modules/core-js/modules/_fix-re-wks.js"}],"../node_modules/core-js/modules/es6.regexp.to-string.js":[function(require,module,exports) {
-
-'use strict';
-require('./es6.regexp.flags');
-var anObject = require('./_an-object');
-var $flags = require('./_flags');
-var DESCRIPTORS = require('./_descriptors');
-var TO_STRING = 'toString';
-var $toString = /./[TO_STRING];
-
-var define = function (fn) {
-  require('./_redefine')(RegExp.prototype, TO_STRING, fn, true);
-};
-
-// 21.2.5.14 RegExp.prototype.toString()
-if (require('./_fails')(function () { return $toString.call({ source: 'a', flags: 'b' }) != '/a/b'; })) {
-  define(function toString() {
-    var R = anObject(this);
-    return '/'.concat(R.source, '/',
-      'flags' in R ? R.flags : !DESCRIPTORS && R instanceof RegExp ? $flags.call(R) : undefined);
-  });
-// FF44- RegExp#toString has a wrong name
-} else if ($toString.name != TO_STRING) {
-  define(function toString() {
-    return $toString.call(this);
-  });
-}
-
-},{"./es6.regexp.flags":"../node_modules/core-js/modules/es6.regexp.flags.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_flags":"../node_modules/core-js/modules/_flags.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_fails":"../node_modules/core-js/modules/_fails.js"}],"../node_modules/core-js/modules/es6.set.js":[function(require,module,exports) {
-'use strict';
-var strong = require('./_collection-strong');
-var validate = require('./_validate-collection');
-var SET = 'Set';
-
-// 23.2 Set Objects
-module.exports = require('./_collection')(SET, function (get) {
-  return function Set() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
-}, {
-  // 23.2.3.1 Set.prototype.add(value)
-  add: function add(value) {
-    return strong.def(validate(this, SET), value = value === 0 ? 0 : value, value);
-  }
-}, strong);
-
-},{"./_collection-strong":"../node_modules/core-js/modules/_collection-strong.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js","./_collection":"../node_modules/core-js/modules/_collection.js"}],"../node_modules/core-js/modules/_wks-ext.js":[function(require,module,exports) {
-exports.f = require('./_wks');
-
-},{"./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/_wks-define.js":[function(require,module,exports) {
-
-var global = require('./_global');
-var core = require('./_core');
-var LIBRARY = require('./_library');
-var wksExt = require('./_wks-ext');
-var defineProperty = require('./_object-dp').f;
-module.exports = function (name) {
-  var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
-  if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, { value: wksExt.f(name) });
-};
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_core":"../node_modules/core-js/modules/_core.js","./_library":"../node_modules/core-js/modules/_library.js","./_wks-ext":"../node_modules/core-js/modules/_wks-ext.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js"}],"../node_modules/core-js/modules/_enum-keys.js":[function(require,module,exports) {
-// all enumerable object keys, includes symbols
-var getKeys = require('./_object-keys');
-var gOPS = require('./_object-gops');
-var pIE = require('./_object-pie');
-module.exports = function (it) {
-  var result = getKeys(it);
-  var getSymbols = gOPS.f;
-  if (getSymbols) {
-    var symbols = getSymbols(it);
-    var isEnum = pIE.f;
-    var i = 0;
-    var key;
-    while (symbols.length > i) if (isEnum.call(it, key = symbols[i++])) result.push(key);
-  } return result;
-};
-
-},{"./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_object-gops":"../node_modules/core-js/modules/_object-gops.js","./_object-pie":"../node_modules/core-js/modules/_object-pie.js"}],"../node_modules/core-js/modules/es6.symbol.js":[function(require,module,exports) {
-
-'use strict';
-// ECMAScript 6 symbols shim
-var global = require('./_global');
-var has = require('./_has');
-var DESCRIPTORS = require('./_descriptors');
-var $export = require('./_export');
-var redefine = require('./_redefine');
-var META = require('./_meta').KEY;
-var $fails = require('./_fails');
-var shared = require('./_shared');
-var setToStringTag = require('./_set-to-string-tag');
-var uid = require('./_uid');
-var wks = require('./_wks');
-var wksExt = require('./_wks-ext');
-var wksDefine = require('./_wks-define');
-var enumKeys = require('./_enum-keys');
-var isArray = require('./_is-array');
-var anObject = require('./_an-object');
-var isObject = require('./_is-object');
-var toObject = require('./_to-object');
-var toIObject = require('./_to-iobject');
-var toPrimitive = require('./_to-primitive');
-var createDesc = require('./_property-desc');
-var _create = require('./_object-create');
-var gOPNExt = require('./_object-gopn-ext');
-var $GOPD = require('./_object-gopd');
-var $GOPS = require('./_object-gops');
-var $DP = require('./_object-dp');
-var $keys = require('./_object-keys');
-var gOPD = $GOPD.f;
-var dP = $DP.f;
-var gOPN = gOPNExt.f;
-var $Symbol = global.Symbol;
-var $JSON = global.JSON;
-var _stringify = $JSON && $JSON.stringify;
-var PROTOTYPE = 'prototype';
-var HIDDEN = wks('_hidden');
-var TO_PRIMITIVE = wks('toPrimitive');
-var isEnum = {}.propertyIsEnumerable;
-var SymbolRegistry = shared('symbol-registry');
-var AllSymbols = shared('symbols');
-var OPSymbols = shared('op-symbols');
-var ObjectProto = Object[PROTOTYPE];
-var USE_NATIVE = typeof $Symbol == 'function' && !!$GOPS.f;
-var QObject = global.QObject;
-// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
-var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;
-
-// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
-var setSymbolDesc = DESCRIPTORS && $fails(function () {
-  return _create(dP({}, 'a', {
-    get: function () { return dP(this, 'a', { value: 7 }).a; }
-  })).a != 7;
-}) ? function (it, key, D) {
-  var protoDesc = gOPD(ObjectProto, key);
-  if (protoDesc) delete ObjectProto[key];
-  dP(it, key, D);
-  if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
-} : dP;
-
-var wrap = function (tag) {
-  var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);
-  sym._k = tag;
-  return sym;
-};
-
-var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function (it) {
-  return typeof it == 'symbol';
-} : function (it) {
-  return it instanceof $Symbol;
-};
-
-var $defineProperty = function defineProperty(it, key, D) {
-  if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
-  anObject(it);
-  key = toPrimitive(key, true);
-  anObject(D);
-  if (has(AllSymbols, key)) {
-    if (!D.enumerable) {
-      if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
-      it[HIDDEN][key] = true;
-    } else {
-      if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
-      D = _create(D, { enumerable: createDesc(0, false) });
-    } return setSymbolDesc(it, key, D);
-  } return dP(it, key, D);
-};
-var $defineProperties = function defineProperties(it, P) {
-  anObject(it);
-  var keys = enumKeys(P = toIObject(P));
-  var i = 0;
-  var l = keys.length;
-  var key;
-  while (l > i) $defineProperty(it, key = keys[i++], P[key]);
-  return it;
-};
-var $create = function create(it, P) {
-  return P === undefined ? _create(it) : $defineProperties(_create(it), P);
-};
-var $propertyIsEnumerable = function propertyIsEnumerable(key) {
-  var E = isEnum.call(this, key = toPrimitive(key, true));
-  if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;
-  return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
-};
-var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
-  it = toIObject(it);
-  key = toPrimitive(key, true);
-  if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
-  var D = gOPD(it, key);
-  if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
-  return D;
-};
-var $getOwnPropertyNames = function getOwnPropertyNames(it) {
-  var names = gOPN(toIObject(it));
-  var result = [];
-  var i = 0;
-  var key;
-  while (names.length > i) {
-    if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
-  } return result;
-};
-var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
-  var IS_OP = it === ObjectProto;
-  var names = gOPN(IS_OP ? OPSymbols : toIObject(it));
-  var result = [];
-  var i = 0;
-  var key;
-  while (names.length > i) {
-    if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);
-  } return result;
-};
-
-// 19.4.1.1 Symbol([description])
-if (!USE_NATIVE) {
-  $Symbol = function Symbol() {
-    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
-    var tag = uid(arguments.length > 0 ? arguments[0] : undefined);
-    var $set = function (value) {
-      if (this === ObjectProto) $set.call(OPSymbols, value);
-      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
-      setSymbolDesc(this, tag, createDesc(1, value));
-    };
-    if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, { configurable: true, set: $set });
-    return wrap(tag);
-  };
-  redefine($Symbol[PROTOTYPE], 'toString', function toString() {
-    return this._k;
-  });
-
-  $GOPD.f = $getOwnPropertyDescriptor;
-  $DP.f = $defineProperty;
-  require('./_object-gopn').f = gOPNExt.f = $getOwnPropertyNames;
-  require('./_object-pie').f = $propertyIsEnumerable;
-  $GOPS.f = $getOwnPropertySymbols;
-
-  if (DESCRIPTORS && !require('./_library')) {
-    redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
-  }
-
-  wksExt.f = function (name) {
-    return wrap(wks(name));
-  };
-}
-
-$export($export.G + $export.W + $export.F * !USE_NATIVE, { Symbol: $Symbol });
-
-for (var es6Symbols = (
-  // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14
-  'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'
-).split(','), j = 0; es6Symbols.length > j;)wks(es6Symbols[j++]);
-
-for (var wellKnownSymbols = $keys(wks.store), k = 0; wellKnownSymbols.length > k;) wksDefine(wellKnownSymbols[k++]);
-
-$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
-  // 19.4.2.1 Symbol.for(key)
-  'for': function (key) {
-    return has(SymbolRegistry, key += '')
-      ? SymbolRegistry[key]
-      : SymbolRegistry[key] = $Symbol(key);
-  },
-  // 19.4.2.5 Symbol.keyFor(sym)
-  keyFor: function keyFor(sym) {
-    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');
-    for (var key in SymbolRegistry) if (SymbolRegistry[key] === sym) return key;
-  },
-  useSetter: function () { setter = true; },
-  useSimple: function () { setter = false; }
-});
-
-$export($export.S + $export.F * !USE_NATIVE, 'Object', {
-  // 19.1.2.2 Object.create(O [, Properties])
-  create: $create,
-  // 19.1.2.4 Object.defineProperty(O, P, Attributes)
-  defineProperty: $defineProperty,
-  // 19.1.2.3 Object.defineProperties(O, Properties)
-  defineProperties: $defineProperties,
-  // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
-  getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
-  // 19.1.2.7 Object.getOwnPropertyNames(O)
-  getOwnPropertyNames: $getOwnPropertyNames,
-  // 19.1.2.8 Object.getOwnPropertySymbols(O)
-  getOwnPropertySymbols: $getOwnPropertySymbols
-});
-
-// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
-// https://bugs.chromium.org/p/v8/issues/detail?id=3443
-var FAILS_ON_PRIMITIVES = $fails(function () { $GOPS.f(1); });
-
-$export($export.S + $export.F * FAILS_ON_PRIMITIVES, 'Object', {
-  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
-    return $GOPS.f(toObject(it));
-  }
-});
-
-// 24.3.2 JSON.stringify(value [, replacer [, space]])
-$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {
-  var S = $Symbol();
-  // MS Edge converts symbol values to JSON as {}
-  // WebKit converts symbol values to JSON as null
-  // V8 throws on boxed symbols
-  return _stringify([S]) != '[null]' || _stringify({ a: S }) != '{}' || _stringify(Object(S)) != '{}';
-})), 'JSON', {
-  stringify: function stringify(it) {
-    var args = [it];
-    var i = 1;
-    var replacer, $replacer;
-    while (arguments.length > i) args.push(arguments[i++]);
-    $replacer = replacer = args[1];
-    if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
-    if (!isArray(replacer)) replacer = function (key, value) {
-      if (typeof $replacer == 'function') value = $replacer.call(this, key, value);
-      if (!isSymbol(value)) return value;
-    };
-    args[1] = replacer;
-    return _stringify.apply($JSON, args);
-  }
-});
-
-// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
-$Symbol[PROTOTYPE][TO_PRIMITIVE] || require('./_hide')($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
-// 19.4.3.5 Symbol.prototype[@@toStringTag]
-setToStringTag($Symbol, 'Symbol');
-// 20.2.1.9 Math[@@toStringTag]
-setToStringTag(Math, 'Math', true);
-// 24.3.3 JSON[@@toStringTag]
-setToStringTag(global.JSON, 'JSON', true);
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_has":"../node_modules/core-js/modules/_has.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_export":"../node_modules/core-js/modules/_export.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_shared":"../node_modules/core-js/modules/_shared.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js","./_uid":"../node_modules/core-js/modules/_uid.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_wks-ext":"../node_modules/core-js/modules/_wks-ext.js","./_wks-define":"../node_modules/core-js/modules/_wks-define.js","./_enum-keys":"../node_modules/core-js/modules/_enum-keys.js","./_is-array":"../node_modules/core-js/modules/_is-array.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_object-gopn-ext":"../node_modules/core-js/modules/_object-gopn-ext.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js","./_object-gops":"../node_modules/core-js/modules/_object-gops.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_object-pie":"../node_modules/core-js/modules/_object-pie.js","./_library":"../node_modules/core-js/modules/_library.js","./_hide":"../node_modules/core-js/modules/_hide.js"}],"../node_modules/core-js/modules/es7.symbol.async-iterator.js":[function(require,module,exports) {
-require('./_wks-define')('asyncIterator');
-
-},{"./_wks-define":"../node_modules/core-js/modules/_wks-define.js"}],"../node_modules/core-js/modules/_string-html.js":[function(require,module,exports) {
-var $export = require('./_export');
-var fails = require('./_fails');
-var defined = require('./_defined');
-var quot = /"/g;
-// B.2.3.2.1 CreateHTML(string, tag, attribute, value)
-var createHTML = function (string, tag, attribute, value) {
-  var S = String(defined(string));
-  var p1 = '<' + tag;
-  if (attribute !== '') p1 += ' ' + attribute + '="' + String(value).replace(quot, '&quot;') + '"';
-  return p1 + '>' + S + '</' + tag + '>';
-};
-module.exports = function (NAME, exec) {
-  var O = {};
-  O[NAME] = exec(createHTML);
-  $export($export.P + $export.F * fails(function () {
-    var test = ''[NAME]('"');
-    return test !== test.toLowerCase() || test.split('"').length > 3;
-  }), 'String', O);
-};
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/es6.string.anchor.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.2 String.prototype.anchor(name)
-require('./_string-html')('anchor', function (createHTML) {
-  return function anchor(name) {
-    return createHTML(this, 'a', 'name', name);
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.big.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.3 String.prototype.big()
-require('./_string-html')('big', function (createHTML) {
-  return function big() {
-    return createHTML(this, 'big', '', '');
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.blink.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.4 String.prototype.blink()
-require('./_string-html')('blink', function (createHTML) {
-  return function blink() {
-    return createHTML(this, 'blink', '', '');
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.bold.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.5 String.prototype.bold()
-require('./_string-html')('bold', function (createHTML) {
-  return function bold() {
-    return createHTML(this, 'b', '', '');
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.code-point-at.js":[function(require,module,exports) {
-'use strict';
-var $export = require('./_export');
-var $at = require('./_string-at')(false);
-$export($export.P, 'String', {
-  // 21.1.3.3 String.prototype.codePointAt(pos)
-  codePointAt: function codePointAt(pos) {
-    return $at(this, pos);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-at":"../node_modules/core-js/modules/_string-at.js"}],"../node_modules/core-js/modules/_string-context.js":[function(require,module,exports) {
-// helper for String#{startsWith, endsWith, includes}
-var isRegExp = require('./_is-regexp');
-var defined = require('./_defined');
-
-module.exports = function (that, searchString, NAME) {
-  if (isRegExp(searchString)) throw TypeError('String#' + NAME + " doesn't accept regex!");
-  return String(defined(that));
-};
-
-},{"./_is-regexp":"../node_modules/core-js/modules/_is-regexp.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_fails-is-regexp.js":[function(require,module,exports) {
-var MATCH = require('./_wks')('match');
-module.exports = function (KEY) {
-  var re = /./;
-  try {
-    '/./'[KEY](re);
-  } catch (e) {
-    try {
-      re[MATCH] = false;
-      return !'/./'[KEY](re);
-    } catch (f) { /* empty */ }
-  } return true;
-};
-
-},{"./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/core-js/modules/es6.string.ends-with.js":[function(require,module,exports) {
-// 21.1.3.6 String.prototype.endsWith(searchString [, endPosition])
-'use strict';
-var $export = require('./_export');
-var toLength = require('./_to-length');
-var context = require('./_string-context');
-var ENDS_WITH = 'endsWith';
-var $endsWith = ''[ENDS_WITH];
-
-$export($export.P + $export.F * require('./_fails-is-regexp')(ENDS_WITH), 'String', {
-  endsWith: function endsWith(searchString /* , endPosition = @length */) {
-    var that = context(this, searchString, ENDS_WITH);
-    var endPosition = arguments.length > 1 ? arguments[1] : undefined;
-    var len = toLength(that.length);
-    var end = endPosition === undefined ? len : Math.min(toLength(endPosition), len);
-    var search = String(searchString);
-    return $endsWith
-      ? $endsWith.call(that, search, end)
-      : that.slice(end - search.length, end) === search;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_string-context":"../node_modules/core-js/modules/_string-context.js","./_fails-is-regexp":"../node_modules/core-js/modules/_fails-is-regexp.js"}],"../node_modules/core-js/modules/es6.string.fixed.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.6 String.prototype.fixed()
-require('./_string-html')('fixed', function (createHTML) {
-  return function fixed() {
-    return createHTML(this, 'tt', '', '');
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.fontcolor.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.7 String.prototype.fontcolor(color)
-require('./_string-html')('fontcolor', function (createHTML) {
-  return function fontcolor(color) {
-    return createHTML(this, 'font', 'color', color);
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.fontsize.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.8 String.prototype.fontsize(size)
-require('./_string-html')('fontsize', function (createHTML) {
-  return function fontsize(size) {
-    return createHTML(this, 'font', 'size', size);
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.from-code-point.js":[function(require,module,exports) {
-var $export = require('./_export');
-var toAbsoluteIndex = require('./_to-absolute-index');
-var fromCharCode = String.fromCharCode;
-var $fromCodePoint = String.fromCodePoint;
-
-// length should be 1, old FF problem
-$export($export.S + $export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
-  // 21.1.2.2 String.fromCodePoint(...codePoints)
-  fromCodePoint: function fromCodePoint(x) { // eslint-disable-line no-unused-vars
-    var res = [];
-    var aLen = arguments.length;
-    var i = 0;
-    var code;
-    while (aLen > i) {
-      code = +arguments[i++];
-      if (toAbsoluteIndex(code, 0x10ffff) !== code) throw RangeError(code + ' is not a valid code point');
-      res.push(code < 0x10000
-        ? fromCharCode(code)
-        : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00)
-      );
-    } return res.join('');
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js"}],"../node_modules/core-js/modules/es6.string.includes.js":[function(require,module,exports) {
-// 21.1.3.7 String.prototype.includes(searchString, position = 0)
-'use strict';
-var $export = require('./_export');
-var context = require('./_string-context');
-var INCLUDES = 'includes';
-
-$export($export.P + $export.F * require('./_fails-is-regexp')(INCLUDES), 'String', {
-  includes: function includes(searchString /* , position = 0 */) {
-    return !!~context(this, searchString, INCLUDES)
-      .indexOf(searchString, arguments.length > 1 ? arguments[1] : undefined);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-context":"../node_modules/core-js/modules/_string-context.js","./_fails-is-regexp":"../node_modules/core-js/modules/_fails-is-regexp.js"}],"../node_modules/core-js/modules/es6.string.italics.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.9 String.prototype.italics()
-require('./_string-html')('italics', function (createHTML) {
-  return function italics() {
-    return createHTML(this, 'i', '', '');
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.iterator.js":[function(require,module,exports) {
-'use strict';
-var $at = require('./_string-at')(true);
-
-// 21.1.3.27 String.prototype[@@iterator]()
-require('./_iter-define')(String, 'String', function (iterated) {
-  this._t = String(iterated); // target
-  this._i = 0;                // next index
-// 21.1.5.2.1 %StringIteratorPrototype%.next()
-}, function () {
-  var O = this._t;
-  var index = this._i;
-  var point;
-  if (index >= O.length) return { value: undefined, done: true };
-  point = $at(O, index);
-  this._i += point.length;
-  return { value: point, done: false };
-});
-
-},{"./_string-at":"../node_modules/core-js/modules/_string-at.js","./_iter-define":"../node_modules/core-js/modules/_iter-define.js"}],"../node_modules/core-js/modules/es6.string.link.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.10 String.prototype.link(url)
-require('./_string-html')('link', function (createHTML) {
-  return function link(url) {
-    return createHTML(this, 'a', 'href', url);
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/_string-repeat.js":[function(require,module,exports) {
-'use strict';
-var toInteger = require('./_to-integer');
-var defined = require('./_defined');
-
-module.exports = function repeat(count) {
-  var str = String(defined(this));
-  var res = '';
-  var n = toInteger(count);
-  if (n < 0 || n == Infinity) throw RangeError("Count can't be negative");
-  for (;n > 0; (n >>>= 1) && (str += str)) if (n & 1) res += str;
-  return res;
-};
-
-},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/_string-pad.js":[function(require,module,exports) {
-// https://github.com/tc39/proposal-string-pad-start-end
-var toLength = require('./_to-length');
-var repeat = require('./_string-repeat');
-var defined = require('./_defined');
-
-module.exports = function (that, maxLength, fillString, left) {
-  var S = String(defined(that));
-  var stringLength = S.length;
-  var fillStr = fillString === undefined ? ' ' : String(fillString);
-  var intMaxLength = toLength(maxLength);
-  if (intMaxLength <= stringLength || fillStr == '') return S;
-  var fillLen = intMaxLength - stringLength;
-  var stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));
-  if (stringFiller.length > fillLen) stringFiller = stringFiller.slice(0, fillLen);
-  return left ? stringFiller + S : S + stringFiller;
-};
-
-},{"./_to-length":"../node_modules/core-js/modules/_to-length.js","./_string-repeat":"../node_modules/core-js/modules/_string-repeat.js","./_defined":"../node_modules/core-js/modules/_defined.js"}],"../node_modules/core-js/modules/es7.string.pad-start.js":[function(require,module,exports) {
-'use strict';
-// https://github.com/tc39/proposal-string-pad-start-end
-var $export = require('./_export');
-var $pad = require('./_string-pad');
-var userAgent = require('./_user-agent');
-
-// https://github.com/zloirock/core-js/issues/280
-var WEBKIT_BUG = /Version\/10\.\d+(\.\d+)?( Mobile\/\w+)? Safari\//.test(userAgent);
-
-$export($export.P + $export.F * WEBKIT_BUG, 'String', {
-  padStart: function padStart(maxLength /* , fillString = ' ' */) {
-    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, true);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-pad":"../node_modules/core-js/modules/_string-pad.js","./_user-agent":"../node_modules/core-js/modules/_user-agent.js"}],"../node_modules/core-js/modules/es7.string.pad-end.js":[function(require,module,exports) {
-'use strict';
-// https://github.com/tc39/proposal-string-pad-start-end
-var $export = require('./_export');
-var $pad = require('./_string-pad');
-var userAgent = require('./_user-agent');
-
-// https://github.com/zloirock/core-js/issues/280
-var WEBKIT_BUG = /Version\/10\.\d+(\.\d+)?( Mobile\/\w+)? Safari\//.test(userAgent);
-
-$export($export.P + $export.F * WEBKIT_BUG, 'String', {
-  padEnd: function padEnd(maxLength /* , fillString = ' ' */) {
-    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, false);
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-pad":"../node_modules/core-js/modules/_string-pad.js","./_user-agent":"../node_modules/core-js/modules/_user-agent.js"}],"../node_modules/core-js/modules/es6.string.raw.js":[function(require,module,exports) {
-var $export = require('./_export');
-var toIObject = require('./_to-iobject');
-var toLength = require('./_to-length');
-
-$export($export.S, 'String', {
-  // 21.1.2.4 String.raw(callSite, ...substitutions)
-  raw: function raw(callSite) {
-    var tpl = toIObject(callSite.raw);
-    var len = toLength(tpl.length);
-    var aLen = arguments.length;
-    var res = [];
-    var i = 0;
-    while (len > i) {
-      res.push(String(tpl[i++]));
-      if (i < aLen) res.push(String(arguments[i]));
-    } return res.join('');
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-iobject":"../node_modules/core-js/modules/_to-iobject.js","./_to-length":"../node_modules/core-js/modules/_to-length.js"}],"../node_modules/core-js/modules/es6.string.repeat.js":[function(require,module,exports) {
-var $export = require('./_export');
-
-$export($export.P, 'String', {
-  // 21.1.3.13 String.prototype.repeat(count)
-  repeat: require('./_string-repeat')
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_string-repeat":"../node_modules/core-js/modules/_string-repeat.js"}],"../node_modules/core-js/modules/es6.string.small.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.11 String.prototype.small()
-require('./_string-html')('small', function (createHTML) {
-  return function small() {
-    return createHTML(this, 'small', '', '');
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.starts-with.js":[function(require,module,exports) {
-// 21.1.3.18 String.prototype.startsWith(searchString [, position ])
-'use strict';
-var $export = require('./_export');
-var toLength = require('./_to-length');
-var context = require('./_string-context');
-var STARTS_WITH = 'startsWith';
-var $startsWith = ''[STARTS_WITH];
-
-$export($export.P + $export.F * require('./_fails-is-regexp')(STARTS_WITH), 'String', {
-  startsWith: function startsWith(searchString /* , position = 0 */) {
-    var that = context(this, searchString, STARTS_WITH);
-    var index = toLength(Math.min(arguments.length > 1 ? arguments[1] : undefined, that.length));
-    var search = String(searchString);
-    return $startsWith
-      ? $startsWith.call(that, search, index)
-      : that.slice(index, index + search.length) === search;
-  }
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_string-context":"../node_modules/core-js/modules/_string-context.js","./_fails-is-regexp":"../node_modules/core-js/modules/_fails-is-regexp.js"}],"../node_modules/core-js/modules/es6.string.strike.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.12 String.prototype.strike()
-require('./_string-html')('strike', function (createHTML) {
-  return function strike() {
-    return createHTML(this, 'strike', '', '');
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.sub.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.13 String.prototype.sub()
-require('./_string-html')('sub', function (createHTML) {
-  return function sub() {
-    return createHTML(this, 'sub', '', '');
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es6.string.sup.js":[function(require,module,exports) {
-'use strict';
-// B.2.3.14 String.prototype.sup()
-require('./_string-html')('sup', function (createHTML) {
-  return function sup() {
-    return createHTML(this, 'sup', '', '');
-  };
-});
-
-},{"./_string-html":"../node_modules/core-js/modules/_string-html.js"}],"../node_modules/core-js/modules/es7.string.trim-left.js":[function(require,module,exports) {
-'use strict';
-// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
-require('./_string-trim')('trimLeft', function ($trim) {
-  return function trimLeft() {
-    return $trim(this, 1);
-  };
-}, 'trimStart');
-
-},{"./_string-trim":"../node_modules/core-js/modules/_string-trim.js"}],"../node_modules/core-js/modules/es7.string.trim-right.js":[function(require,module,exports) {
-'use strict';
-// https://github.com/sebmarkbage/ecmascript-string-left-right-trim
-require('./_string-trim')('trimRight', function ($trim) {
-  return function trimRight() {
-    return $trim(this, 2);
-  };
-}, 'trimEnd');
-
-},{"./_string-trim":"../node_modules/core-js/modules/_string-trim.js"}],"../node_modules/core-js/modules/_typed.js":[function(require,module,exports) {
-
-var global = require('./_global');
-var hide = require('./_hide');
-var uid = require('./_uid');
-var TYPED = uid('typed_array');
-var VIEW = uid('view');
-var ABV = !!(global.ArrayBuffer && global.DataView);
-var CONSTR = ABV;
-var i = 0;
-var l = 9;
-var Typed;
-
-var TypedArrayConstructors = (
-  'Int8Array,Uint8Array,Uint8ClampedArray,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array'
-).split(',');
-
-while (i < l) {
-  if (Typed = global[TypedArrayConstructors[i++]]) {
-    hide(Typed.prototype, TYPED, true);
-    hide(Typed.prototype, VIEW, true);
-  } else CONSTR = false;
-}
-
-module.exports = {
-  ABV: ABV,
-  CONSTR: CONSTR,
-  TYPED: TYPED,
-  VIEW: VIEW
-};
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_uid":"../node_modules/core-js/modules/_uid.js"}],"../node_modules/core-js/modules/_to-index.js":[function(require,module,exports) {
-// https://tc39.github.io/ecma262/#sec-toindex
-var toInteger = require('./_to-integer');
-var toLength = require('./_to-length');
-module.exports = function (it) {
-  if (it === undefined) return 0;
-  var number = toInteger(it);
-  var length = toLength(number);
-  if (number !== length) throw RangeError('Wrong length!');
-  return length;
-};
-
-},{"./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_to-length":"../node_modules/core-js/modules/_to-length.js"}],"../node_modules/core-js/modules/_typed-buffer.js":[function(require,module,exports) {
-
-'use strict';
-var global = require('./_global');
-var DESCRIPTORS = require('./_descriptors');
-var LIBRARY = require('./_library');
-var $typed = require('./_typed');
-var hide = require('./_hide');
-var redefineAll = require('./_redefine-all');
-var fails = require('./_fails');
-var anInstance = require('./_an-instance');
-var toInteger = require('./_to-integer');
-var toLength = require('./_to-length');
-var toIndex = require('./_to-index');
-var gOPN = require('./_object-gopn').f;
-var dP = require('./_object-dp').f;
-var arrayFill = require('./_array-fill');
-var setToStringTag = require('./_set-to-string-tag');
-var ARRAY_BUFFER = 'ArrayBuffer';
-var DATA_VIEW = 'DataView';
-var PROTOTYPE = 'prototype';
-var WRONG_LENGTH = 'Wrong length!';
-var WRONG_INDEX = 'Wrong index!';
-var $ArrayBuffer = global[ARRAY_BUFFER];
-var $DataView = global[DATA_VIEW];
-var Math = global.Math;
-var RangeError = global.RangeError;
-// eslint-disable-next-line no-shadow-restricted-names
-var Infinity = global.Infinity;
-var BaseBuffer = $ArrayBuffer;
-var abs = Math.abs;
-var pow = Math.pow;
-var floor = Math.floor;
-var log = Math.log;
-var LN2 = Math.LN2;
-var BUFFER = 'buffer';
-var BYTE_LENGTH = 'byteLength';
-var BYTE_OFFSET = 'byteOffset';
-var $BUFFER = DESCRIPTORS ? '_b' : BUFFER;
-var $LENGTH = DESCRIPTORS ? '_l' : BYTE_LENGTH;
-var $OFFSET = DESCRIPTORS ? '_o' : BYTE_OFFSET;
-
-// IEEE754 conversions based on https://github.com/feross/ieee754
-function packIEEE754(value, mLen, nBytes) {
-  var buffer = new Array(nBytes);
-  var eLen = nBytes * 8 - mLen - 1;
-  var eMax = (1 << eLen) - 1;
-  var eBias = eMax >> 1;
-  var rt = mLen === 23 ? pow(2, -24) - pow(2, -77) : 0;
-  var i = 0;
-  var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0;
-  var e, m, c;
-  value = abs(value);
-  // eslint-disable-next-line no-self-compare
-  if (value != value || value === Infinity) {
-    // eslint-disable-next-line no-self-compare
-    m = value != value ? 1 : 0;
-    e = eMax;
-  } else {
-    e = floor(log(value) / LN2);
-    if (value * (c = pow(2, -e)) < 1) {
-      e--;
-      c *= 2;
-    }
-    if (e + eBias >= 1) {
-      value += rt / c;
-    } else {
-      value += rt * pow(2, 1 - eBias);
-    }
-    if (value * c >= 2) {
-      e++;
-      c /= 2;
-    }
-    if (e + eBias >= eMax) {
-      m = 0;
-      e = eMax;
-    } else if (e + eBias >= 1) {
-      m = (value * c - 1) * pow(2, mLen);
-      e = e + eBias;
-    } else {
-      m = value * pow(2, eBias - 1) * pow(2, mLen);
-      e = 0;
-    }
-  }
-  for (; mLen >= 8; buffer[i++] = m & 255, m /= 256, mLen -= 8);
-  e = e << mLen | m;
-  eLen += mLen;
-  for (; eLen > 0; buffer[i++] = e & 255, e /= 256, eLen -= 8);
-  buffer[--i] |= s * 128;
-  return buffer;
-}
-function unpackIEEE754(buffer, mLen, nBytes) {
-  var eLen = nBytes * 8 - mLen - 1;
-  var eMax = (1 << eLen) - 1;
-  var eBias = eMax >> 1;
-  var nBits = eLen - 7;
-  var i = nBytes - 1;
-  var s = buffer[i--];
-  var e = s & 127;
-  var m;
-  s >>= 7;
-  for (; nBits > 0; e = e * 256 + buffer[i], i--, nBits -= 8);
-  m = e & (1 << -nBits) - 1;
-  e >>= -nBits;
-  nBits += mLen;
-  for (; nBits > 0; m = m * 256 + buffer[i], i--, nBits -= 8);
-  if (e === 0) {
-    e = 1 - eBias;
-  } else if (e === eMax) {
-    return m ? NaN : s ? -Infinity : Infinity;
-  } else {
-    m = m + pow(2, mLen);
-    e = e - eBias;
-  } return (s ? -1 : 1) * m * pow(2, e - mLen);
-}
-
-function unpackI32(bytes) {
-  return bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0];
-}
-function packI8(it) {
-  return [it & 0xff];
-}
-function packI16(it) {
-  return [it & 0xff, it >> 8 & 0xff];
-}
-function packI32(it) {
-  return [it & 0xff, it >> 8 & 0xff, it >> 16 & 0xff, it >> 24 & 0xff];
-}
-function packF64(it) {
-  return packIEEE754(it, 52, 8);
-}
-function packF32(it) {
-  return packIEEE754(it, 23, 4);
-}
-
-function addGetter(C, key, internal) {
-  dP(C[PROTOTYPE], key, { get: function () { return this[internal]; } });
-}
-
-function get(view, bytes, index, isLittleEndian) {
-  var numIndex = +index;
-  var intIndex = toIndex(numIndex);
-  if (intIndex + bytes > view[$LENGTH]) throw RangeError(WRONG_INDEX);
-  var store = view[$BUFFER]._b;
-  var start = intIndex + view[$OFFSET];
-  var pack = store.slice(start, start + bytes);
-  return isLittleEndian ? pack : pack.reverse();
-}
-function set(view, bytes, index, conversion, value, isLittleEndian) {
-  var numIndex = +index;
-  var intIndex = toIndex(numIndex);
-  if (intIndex + bytes > view[$LENGTH]) throw RangeError(WRONG_INDEX);
-  var store = view[$BUFFER]._b;
-  var start = intIndex + view[$OFFSET];
-  var pack = conversion(+value);
-  for (var i = 0; i < bytes; i++) store[start + i] = pack[isLittleEndian ? i : bytes - i - 1];
-}
-
-if (!$typed.ABV) {
-  $ArrayBuffer = function ArrayBuffer(length) {
-    anInstance(this, $ArrayBuffer, ARRAY_BUFFER);
-    var byteLength = toIndex(length);
-    this._b = arrayFill.call(new Array(byteLength), 0);
-    this[$LENGTH] = byteLength;
-  };
-
-  $DataView = function DataView(buffer, byteOffset, byteLength) {
-    anInstance(this, $DataView, DATA_VIEW);
-    anInstance(buffer, $ArrayBuffer, DATA_VIEW);
-    var bufferLength = buffer[$LENGTH];
-    var offset = toInteger(byteOffset);
-    if (offset < 0 || offset > bufferLength) throw RangeError('Wrong offset!');
-    byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);
-    if (offset + byteLength > bufferLength) throw RangeError(WRONG_LENGTH);
-    this[$BUFFER] = buffer;
-    this[$OFFSET] = offset;
-    this[$LENGTH] = byteLength;
-  };
-
-  if (DESCRIPTORS) {
-    addGetter($ArrayBuffer, BYTE_LENGTH, '_l');
-    addGetter($DataView, BUFFER, '_b');
-    addGetter($DataView, BYTE_LENGTH, '_l');
-    addGetter($DataView, BYTE_OFFSET, '_o');
-  }
-
-  redefineAll($DataView[PROTOTYPE], {
-    getInt8: function getInt8(byteOffset) {
-      return get(this, 1, byteOffset)[0] << 24 >> 24;
-    },
-    getUint8: function getUint8(byteOffset) {
-      return get(this, 1, byteOffset)[0];
-    },
-    getInt16: function getInt16(byteOffset /* , littleEndian */) {
-      var bytes = get(this, 2, byteOffset, arguments[1]);
-      return (bytes[1] << 8 | bytes[0]) << 16 >> 16;
-    },
-    getUint16: function getUint16(byteOffset /* , littleEndian */) {
-      var bytes = get(this, 2, byteOffset, arguments[1]);
-      return bytes[1] << 8 | bytes[0];
-    },
-    getInt32: function getInt32(byteOffset /* , littleEndian */) {
-      return unpackI32(get(this, 4, byteOffset, arguments[1]));
-    },
-    getUint32: function getUint32(byteOffset /* , littleEndian */) {
-      return unpackI32(get(this, 4, byteOffset, arguments[1])) >>> 0;
-    },
-    getFloat32: function getFloat32(byteOffset /* , littleEndian */) {
-      return unpackIEEE754(get(this, 4, byteOffset, arguments[1]), 23, 4);
-    },
-    getFloat64: function getFloat64(byteOffset /* , littleEndian */) {
-      return unpackIEEE754(get(this, 8, byteOffset, arguments[1]), 52, 8);
-    },
-    setInt8: function setInt8(byteOffset, value) {
-      set(this, 1, byteOffset, packI8, value);
-    },
-    setUint8: function setUint8(byteOffset, value) {
-      set(this, 1, byteOffset, packI8, value);
-    },
-    setInt16: function setInt16(byteOffset, value /* , littleEndian */) {
-      set(this, 2, byteOffset, packI16, value, arguments[2]);
-    },
-    setUint16: function setUint16(byteOffset, value /* , littleEndian */) {
-      set(this, 2, byteOffset, packI16, value, arguments[2]);
-    },
-    setInt32: function setInt32(byteOffset, value /* , littleEndian */) {
-      set(this, 4, byteOffset, packI32, value, arguments[2]);
-    },
-    setUint32: function setUint32(byteOffset, value /* , littleEndian */) {
-      set(this, 4, byteOffset, packI32, value, arguments[2]);
-    },
-    setFloat32: function setFloat32(byteOffset, value /* , littleEndian */) {
-      set(this, 4, byteOffset, packF32, value, arguments[2]);
-    },
-    setFloat64: function setFloat64(byteOffset, value /* , littleEndian */) {
-      set(this, 8, byteOffset, packF64, value, arguments[2]);
-    }
-  });
-} else {
-  if (!fails(function () {
-    $ArrayBuffer(1);
-  }) || !fails(function () {
-    new $ArrayBuffer(-1); // eslint-disable-line no-new
-  }) || fails(function () {
-    new $ArrayBuffer(); // eslint-disable-line no-new
-    new $ArrayBuffer(1.5); // eslint-disable-line no-new
-    new $ArrayBuffer(NaN); // eslint-disable-line no-new
-    return $ArrayBuffer.name != ARRAY_BUFFER;
-  })) {
-    $ArrayBuffer = function ArrayBuffer(length) {
-      anInstance(this, $ArrayBuffer);
-      return new BaseBuffer(toIndex(length));
-    };
-    var ArrayBufferProto = $ArrayBuffer[PROTOTYPE] = BaseBuffer[PROTOTYPE];
-    for (var keys = gOPN(BaseBuffer), j = 0, key; keys.length > j;) {
-      if (!((key = keys[j++]) in $ArrayBuffer)) hide($ArrayBuffer, key, BaseBuffer[key]);
-    }
-    if (!LIBRARY) ArrayBufferProto.constructor = $ArrayBuffer;
-  }
-  // iOS Safari 7.x bug
-  var view = new $DataView(new $ArrayBuffer(2));
-  var $setInt8 = $DataView[PROTOTYPE].setInt8;
-  view.setInt8(0, 2147483648);
-  view.setInt8(1, 2147483649);
-  if (view.getInt8(0) || !view.getInt8(1)) redefineAll($DataView[PROTOTYPE], {
-    setInt8: function setInt8(byteOffset, value) {
-      $setInt8.call(this, byteOffset, value << 24 >> 24);
-    },
-    setUint8: function setUint8(byteOffset, value) {
-      $setInt8.call(this, byteOffset, value << 24 >> 24);
-    }
-  }, true);
-}
-setToStringTag($ArrayBuffer, ARRAY_BUFFER);
-setToStringTag($DataView, DATA_VIEW);
-hide($DataView[PROTOTYPE], $typed.VIEW, true);
-exports[ARRAY_BUFFER] = $ArrayBuffer;
-exports[DATA_VIEW] = $DataView;
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_library":"../node_modules/core-js/modules/_library.js","./_typed":"../node_modules/core-js/modules/_typed.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_to-index":"../node_modules/core-js/modules/_to-index.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_array-fill":"../node_modules/core-js/modules/_array-fill.js","./_set-to-string-tag":"../node_modules/core-js/modules/_set-to-string-tag.js"}],"../node_modules/core-js/modules/es6.typed.array-buffer.js":[function(require,module,exports) {
-'use strict';
-var $export = require('./_export');
-var $typed = require('./_typed');
-var buffer = require('./_typed-buffer');
-var anObject = require('./_an-object');
-var toAbsoluteIndex = require('./_to-absolute-index');
-var toLength = require('./_to-length');
-var isObject = require('./_is-object');
-var ArrayBuffer = require('./_global').ArrayBuffer;
-var speciesConstructor = require('./_species-constructor');
-var $ArrayBuffer = buffer.ArrayBuffer;
-var $DataView = buffer.DataView;
-var $isView = $typed.ABV && ArrayBuffer.isView;
-var $slice = $ArrayBuffer.prototype.slice;
-var VIEW = $typed.VIEW;
-var ARRAY_BUFFER = 'ArrayBuffer';
-
-$export($export.G + $export.W + $export.F * (ArrayBuffer !== $ArrayBuffer), { ArrayBuffer: $ArrayBuffer });
-
-$export($export.S + $export.F * !$typed.CONSTR, ARRAY_BUFFER, {
-  // 24.1.3.1 ArrayBuffer.isView(arg)
-  isView: function isView(it) {
-    return $isView && $isView(it) || isObject(it) && VIEW in it;
-  }
-});
-
-$export($export.P + $export.U + $export.F * require('./_fails')(function () {
-  return !new $ArrayBuffer(2).slice(1, undefined).byteLength;
-}), ARRAY_BUFFER, {
-  // 24.1.4.3 ArrayBuffer.prototype.slice(start, end)
-  slice: function slice(start, end) {
-    if ($slice !== undefined && end === undefined) return $slice.call(anObject(this), start); // FF fix
-    var len = anObject(this).byteLength;
-    var first = toAbsoluteIndex(start, len);
-    var fin = toAbsoluteIndex(end === undefined ? len : end, len);
-    var result = new (speciesConstructor(this, $ArrayBuffer))(toLength(fin - first));
-    var viewS = new $DataView(this);
-    var viewT = new $DataView(result);
-    var index = 0;
-    while (first < fin) {
-      viewT.setUint8(index++, viewS.getUint8(first++));
-    } return result;
-  }
-});
-
-require('./_set-species')(ARRAY_BUFFER);
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_typed":"../node_modules/core-js/modules/_typed.js","./_typed-buffer":"../node_modules/core-js/modules/_typed-buffer.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_global":"../node_modules/core-js/modules/_global.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_set-species":"../node_modules/core-js/modules/_set-species.js"}],"../node_modules/core-js/modules/_typed-array.js":[function(require,module,exports) {
-var global = arguments[3];
-'use strict';
-if (require('./_descriptors')) {
-  var LIBRARY = require('./_library');
-  var global = require('./_global');
-  var fails = require('./_fails');
-  var $export = require('./_export');
-  var $typed = require('./_typed');
-  var $buffer = require('./_typed-buffer');
-  var ctx = require('./_ctx');
-  var anInstance = require('./_an-instance');
-  var propertyDesc = require('./_property-desc');
-  var hide = require('./_hide');
-  var redefineAll = require('./_redefine-all');
-  var toInteger = require('./_to-integer');
-  var toLength = require('./_to-length');
-  var toIndex = require('./_to-index');
-  var toAbsoluteIndex = require('./_to-absolute-index');
-  var toPrimitive = require('./_to-primitive');
-  var has = require('./_has');
-  var classof = require('./_classof');
-  var isObject = require('./_is-object');
-  var toObject = require('./_to-object');
-  var isArrayIter = require('./_is-array-iter');
-  var create = require('./_object-create');
-  var getPrototypeOf = require('./_object-gpo');
-  var gOPN = require('./_object-gopn').f;
-  var getIterFn = require('./core.get-iterator-method');
-  var uid = require('./_uid');
-  var wks = require('./_wks');
-  var createArrayMethod = require('./_array-methods');
-  var createArrayIncludes = require('./_array-includes');
-  var speciesConstructor = require('./_species-constructor');
-  var ArrayIterators = require('./es6.array.iterator');
-  var Iterators = require('./_iterators');
-  var $iterDetect = require('./_iter-detect');
-  var setSpecies = require('./_set-species');
-  var arrayFill = require('./_array-fill');
-  var arrayCopyWithin = require('./_array-copy-within');
-  var $DP = require('./_object-dp');
-  var $GOPD = require('./_object-gopd');
-  var dP = $DP.f;
-  var gOPD = $GOPD.f;
-  var RangeError = global.RangeError;
-  var TypeError = global.TypeError;
-  var Uint8Array = global.Uint8Array;
-  var ARRAY_BUFFER = 'ArrayBuffer';
-  var SHARED_BUFFER = 'Shared' + ARRAY_BUFFER;
-  var BYTES_PER_ELEMENT = 'BYTES_PER_ELEMENT';
-  var PROTOTYPE = 'prototype';
-  var ArrayProto = Array[PROTOTYPE];
-  var $ArrayBuffer = $buffer.ArrayBuffer;
-  var $DataView = $buffer.DataView;
-  var arrayForEach = createArrayMethod(0);
-  var arrayFilter = createArrayMethod(2);
-  var arraySome = createArrayMethod(3);
-  var arrayEvery = createArrayMethod(4);
-  var arrayFind = createArrayMethod(5);
-  var arrayFindIndex = createArrayMethod(6);
-  var arrayIncludes = createArrayIncludes(true);
-  var arrayIndexOf = createArrayIncludes(false);
-  var arrayValues = ArrayIterators.values;
-  var arrayKeys = ArrayIterators.keys;
-  var arrayEntries = ArrayIterators.entries;
-  var arrayLastIndexOf = ArrayProto.lastIndexOf;
-  var arrayReduce = ArrayProto.reduce;
-  var arrayReduceRight = ArrayProto.reduceRight;
-  var arrayJoin = ArrayProto.join;
-  var arraySort = ArrayProto.sort;
-  var arraySlice = ArrayProto.slice;
-  var arrayToString = ArrayProto.toString;
-  var arrayToLocaleString = ArrayProto.toLocaleString;
-  var ITERATOR = wks('iterator');
-  var TAG = wks('toStringTag');
-  var TYPED_CONSTRUCTOR = uid('typed_constructor');
-  var DEF_CONSTRUCTOR = uid('def_constructor');
-  var ALL_CONSTRUCTORS = $typed.CONSTR;
-  var TYPED_ARRAY = $typed.TYPED;
-  var VIEW = $typed.VIEW;
-  var WRONG_LENGTH = 'Wrong length!';
-
-  var $map = createArrayMethod(1, function (O, length) {
-    return allocate(speciesConstructor(O, O[DEF_CONSTRUCTOR]), length);
-  });
-
-  var LITTLE_ENDIAN = fails(function () {
-    // eslint-disable-next-line no-undef
-    return new Uint8Array(new Uint16Array([1]).buffer)[0] === 1;
-  });
-
-  var FORCED_SET = !!Uint8Array && !!Uint8Array[PROTOTYPE].set && fails(function () {
-    new Uint8Array(1).set({});
-  });
-
-  var toOffset = function (it, BYTES) {
-    var offset = toInteger(it);
-    if (offset < 0 || offset % BYTES) throw RangeError('Wrong offset!');
-    return offset;
-  };
-
-  var validate = function (it) {
-    if (isObject(it) && TYPED_ARRAY in it) return it;
-    throw TypeError(it + ' is not a typed array!');
-  };
-
-  var allocate = function (C, length) {
-    if (!(isObject(C) && TYPED_CONSTRUCTOR in C)) {
-      throw TypeError('It is not a typed array constructor!');
-    } return new C(length);
-  };
-
-  var speciesFromList = function (O, list) {
-    return fromList(speciesConstructor(O, O[DEF_CONSTRUCTOR]), list);
-  };
-
-  var fromList = function (C, list) {
-    var index = 0;
-    var length = list.length;
-    var result = allocate(C, length);
-    while (length > index) result[index] = list[index++];
-    return result;
-  };
-
-  var addGetter = function (it, key, internal) {
-    dP(it, key, { get: function () { return this._d[internal]; } });
-  };
-
-  var $from = function from(source /* , mapfn, thisArg */) {
-    var O = toObject(source);
-    var aLen = arguments.length;
-    var mapfn = aLen > 1 ? arguments[1] : undefined;
-    var mapping = mapfn !== undefined;
-    var iterFn = getIterFn(O);
-    var i, length, values, result, step, iterator;
-    if (iterFn != undefined && !isArrayIter(iterFn)) {
-      for (iterator = iterFn.call(O), values = [], i = 0; !(step = iterator.next()).done; i++) {
-        values.push(step.value);
-      } O = values;
-    }
-    if (mapping && aLen > 2) mapfn = ctx(mapfn, arguments[2], 2);
-    for (i = 0, length = toLength(O.length), result = allocate(this, length); length > i; i++) {
-      result[i] = mapping ? mapfn(O[i], i) : O[i];
-    }
-    return result;
-  };
-
-  var $of = function of(/* ...items */) {
-    var index = 0;
-    var length = arguments.length;
-    var result = allocate(this, length);
-    while (length > index) result[index] = arguments[index++];
-    return result;
-  };
-
-  // iOS Safari 6.x fails here
-  var TO_LOCALE_BUG = !!Uint8Array && fails(function () { arrayToLocaleString.call(new Uint8Array(1)); });
-
-  var $toLocaleString = function toLocaleString() {
-    return arrayToLocaleString.apply(TO_LOCALE_BUG ? arraySlice.call(validate(this)) : validate(this), arguments);
-  };
-
-  var proto = {
-    copyWithin: function copyWithin(target, start /* , end */) {
-      return arrayCopyWithin.call(validate(this), target, start, arguments.length > 2 ? arguments[2] : undefined);
-    },
-    every: function every(callbackfn /* , thisArg */) {
-      return arrayEvery(validate(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-    },
-    fill: function fill(value /* , start, end */) { // eslint-disable-line no-unused-vars
-      return arrayFill.apply(validate(this), arguments);
-    },
-    filter: function filter(callbackfn /* , thisArg */) {
-      return speciesFromList(this, arrayFilter(validate(this), callbackfn,
-        arguments.length > 1 ? arguments[1] : undefined));
-    },
-    find: function find(predicate /* , thisArg */) {
-      return arrayFind(validate(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
-    },
-    findIndex: function findIndex(predicate /* , thisArg */) {
-      return arrayFindIndex(validate(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
-    },
-    forEach: function forEach(callbackfn /* , thisArg */) {
-      arrayForEach(validate(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-    },
-    indexOf: function indexOf(searchElement /* , fromIndex */) {
-      return arrayIndexOf(validate(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
-    },
-    includes: function includes(searchElement /* , fromIndex */) {
-      return arrayIncludes(validate(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
-    },
-    join: function join(separator) { // eslint-disable-line no-unused-vars
-      return arrayJoin.apply(validate(this), arguments);
-    },
-    lastIndexOf: function lastIndexOf(searchElement /* , fromIndex */) { // eslint-disable-line no-unused-vars
-      return arrayLastIndexOf.apply(validate(this), arguments);
-    },
-    map: function map(mapfn /* , thisArg */) {
-      return $map(validate(this), mapfn, arguments.length > 1 ? arguments[1] : undefined);
-    },
-    reduce: function reduce(callbackfn /* , initialValue */) { // eslint-disable-line no-unused-vars
-      return arrayReduce.apply(validate(this), arguments);
-    },
-    reduceRight: function reduceRight(callbackfn /* , initialValue */) { // eslint-disable-line no-unused-vars
-      return arrayReduceRight.apply(validate(this), arguments);
-    },
-    reverse: function reverse() {
-      var that = this;
-      var length = validate(that).length;
-      var middle = Math.floor(length / 2);
-      var index = 0;
-      var value;
-      while (index < middle) {
-        value = that[index];
-        that[index++] = that[--length];
-        that[length] = value;
-      } return that;
-    },
-    some: function some(callbackfn /* , thisArg */) {
-      return arraySome(validate(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-    },
-    sort: function sort(comparefn) {
-      return arraySort.call(validate(this), comparefn);
-    },
-    subarray: function subarray(begin, end) {
-      var O = validate(this);
-      var length = O.length;
-      var $begin = toAbsoluteIndex(begin, length);
-      return new (speciesConstructor(O, O[DEF_CONSTRUCTOR]))(
-        O.buffer,
-        O.byteOffset + $begin * O.BYTES_PER_ELEMENT,
-        toLength((end === undefined ? length : toAbsoluteIndex(end, length)) - $begin)
-      );
-    }
-  };
-
-  var $slice = function slice(start, end) {
-    return speciesFromList(this, arraySlice.call(validate(this), start, end));
-  };
-
-  var $set = function set(arrayLike /* , offset */) {
-    validate(this);
-    var offset = toOffset(arguments[1], 1);
-    var length = this.length;
-    var src = toObject(arrayLike);
-    var len = toLength(src.length);
-    var index = 0;
-    if (len + offset > length) throw RangeError(WRONG_LENGTH);
-    while (index < len) this[offset + index] = src[index++];
-  };
-
-  var $iterators = {
-    entries: function entries() {
-      return arrayEntries.call(validate(this));
-    },
-    keys: function keys() {
-      return arrayKeys.call(validate(this));
-    },
-    values: function values() {
-      return arrayValues.call(validate(this));
-    }
-  };
-
-  var isTAIndex = function (target, key) {
-    return isObject(target)
-      && target[TYPED_ARRAY]
-      && typeof key != 'symbol'
-      && key in target
-      && String(+key) == String(key);
-  };
-  var $getDesc = function getOwnPropertyDescriptor(target, key) {
-    return isTAIndex(target, key = toPrimitive(key, true))
-      ? propertyDesc(2, target[key])
-      : gOPD(target, key);
-  };
-  var $setDesc = function defineProperty(target, key, desc) {
-    if (isTAIndex(target, key = toPrimitive(key, true))
-      && isObject(desc)
-      && has(desc, 'value')
-      && !has(desc, 'get')
-      && !has(desc, 'set')
-      // TODO: add validation descriptor w/o calling accessors
-      && !desc.configurable
-      && (!has(desc, 'writable') || desc.writable)
-      && (!has(desc, 'enumerable') || desc.enumerable)
-    ) {
-      target[key] = desc.value;
-      return target;
-    } return dP(target, key, desc);
-  };
-
-  if (!ALL_CONSTRUCTORS) {
-    $GOPD.f = $getDesc;
-    $DP.f = $setDesc;
-  }
-
-  $export($export.S + $export.F * !ALL_CONSTRUCTORS, 'Object', {
-    getOwnPropertyDescriptor: $getDesc,
-    defineProperty: $setDesc
-  });
-
-  if (fails(function () { arrayToString.call({}); })) {
-    arrayToString = arrayToLocaleString = function toString() {
-      return arrayJoin.call(this);
-    };
-  }
-
-  var $TypedArrayPrototype$ = redefineAll({}, proto);
-  redefineAll($TypedArrayPrototype$, $iterators);
-  hide($TypedArrayPrototype$, ITERATOR, $iterators.values);
-  redefineAll($TypedArrayPrototype$, {
-    slice: $slice,
-    set: $set,
-    constructor: function () { /* noop */ },
-    toString: arrayToString,
-    toLocaleString: $toLocaleString
-  });
-  addGetter($TypedArrayPrototype$, 'buffer', 'b');
-  addGetter($TypedArrayPrototype$, 'byteOffset', 'o');
-  addGetter($TypedArrayPrototype$, 'byteLength', 'l');
-  addGetter($TypedArrayPrototype$, 'length', 'e');
-  dP($TypedArrayPrototype$, TAG, {
-    get: function () { return this[TYPED_ARRAY]; }
-  });
-
-  // eslint-disable-next-line max-statements
-  module.exports = function (KEY, BYTES, wrapper, CLAMPED) {
-    CLAMPED = !!CLAMPED;
-    var NAME = KEY + (CLAMPED ? 'Clamped' : '') + 'Array';
-    var GETTER = 'get' + KEY;
-    var SETTER = 'set' + KEY;
-    var TypedArray = global[NAME];
-    var Base = TypedArray || {};
-    var TAC = TypedArray && getPrototypeOf(TypedArray);
-    var FORCED = !TypedArray || !$typed.ABV;
-    var O = {};
-    var TypedArrayPrototype = TypedArray && TypedArray[PROTOTYPE];
-    var getter = function (that, index) {
-      var data = that._d;
-      return data.v[GETTER](index * BYTES + data.o, LITTLE_ENDIAN);
-    };
-    var setter = function (that, index, value) {
-      var data = that._d;
-      if (CLAMPED) value = (value = Math.round(value)) < 0 ? 0 : value > 0xff ? 0xff : value & 0xff;
-      data.v[SETTER](index * BYTES + data.o, value, LITTLE_ENDIAN);
-    };
-    var addElement = function (that, index) {
-      dP(that, index, {
-        get: function () {
-          return getter(this, index);
-        },
-        set: function (value) {
-          return setter(this, index, value);
-        },
-        enumerable: true
-      });
-    };
-    if (FORCED) {
-      TypedArray = wrapper(function (that, data, $offset, $length) {
-        anInstance(that, TypedArray, NAME, '_d');
-        var index = 0;
-        var offset = 0;
-        var buffer, byteLength, length, klass;
-        if (!isObject(data)) {
-          length = toIndex(data);
-          byteLength = length * BYTES;
-          buffer = new $ArrayBuffer(byteLength);
-        } else if (data instanceof $ArrayBuffer || (klass = classof(data)) == ARRAY_BUFFER || klass == SHARED_BUFFER) {
-          buffer = data;
-          offset = toOffset($offset, BYTES);
-          var $len = data.byteLength;
-          if ($length === undefined) {
-            if ($len % BYTES) throw RangeError(WRONG_LENGTH);
-            byteLength = $len - offset;
-            if (byteLength < 0) throw RangeError(WRONG_LENGTH);
-          } else {
-            byteLength = toLength($length) * BYTES;
-            if (byteLength + offset > $len) throw RangeError(WRONG_LENGTH);
-          }
-          length = byteLength / BYTES;
-        } else if (TYPED_ARRAY in data) {
-          return fromList(TypedArray, data);
-        } else {
-          return $from.call(TypedArray, data);
-        }
-        hide(that, '_d', {
-          b: buffer,
-          o: offset,
-          l: byteLength,
-          e: length,
-          v: new $DataView(buffer)
-        });
-        while (index < length) addElement(that, index++);
-      });
-      TypedArrayPrototype = TypedArray[PROTOTYPE] = create($TypedArrayPrototype$);
-      hide(TypedArrayPrototype, 'constructor', TypedArray);
-    } else if (!fails(function () {
-      TypedArray(1);
-    }) || !fails(function () {
-      new TypedArray(-1); // eslint-disable-line no-new
-    }) || !$iterDetect(function (iter) {
-      new TypedArray(); // eslint-disable-line no-new
-      new TypedArray(null); // eslint-disable-line no-new
-      new TypedArray(1.5); // eslint-disable-line no-new
-      new TypedArray(iter); // eslint-disable-line no-new
-    }, true)) {
-      TypedArray = wrapper(function (that, data, $offset, $length) {
-        anInstance(that, TypedArray, NAME);
-        var klass;
-        // `ws` module bug, temporarily remove validation length for Uint8Array
-        // https://github.com/websockets/ws/pull/645
-        if (!isObject(data)) return new Base(toIndex(data));
-        if (data instanceof $ArrayBuffer || (klass = classof(data)) == ARRAY_BUFFER || klass == SHARED_BUFFER) {
-          return $length !== undefined
-            ? new Base(data, toOffset($offset, BYTES), $length)
-            : $offset !== undefined
-              ? new Base(data, toOffset($offset, BYTES))
-              : new Base(data);
-        }
-        if (TYPED_ARRAY in data) return fromList(TypedArray, data);
-        return $from.call(TypedArray, data);
-      });
-      arrayForEach(TAC !== Function.prototype ? gOPN(Base).concat(gOPN(TAC)) : gOPN(Base), function (key) {
-        if (!(key in TypedArray)) hide(TypedArray, key, Base[key]);
-      });
-      TypedArray[PROTOTYPE] = TypedArrayPrototype;
-      if (!LIBRARY) TypedArrayPrototype.constructor = TypedArray;
-    }
-    var $nativeIterator = TypedArrayPrototype[ITERATOR];
-    var CORRECT_ITER_NAME = !!$nativeIterator
-      && ($nativeIterator.name == 'values' || $nativeIterator.name == undefined);
-    var $iterator = $iterators.values;
-    hide(TypedArray, TYPED_CONSTRUCTOR, true);
-    hide(TypedArrayPrototype, TYPED_ARRAY, NAME);
-    hide(TypedArrayPrototype, VIEW, true);
-    hide(TypedArrayPrototype, DEF_CONSTRUCTOR, TypedArray);
-
-    if (CLAMPED ? new TypedArray(1)[TAG] != NAME : !(TAG in TypedArrayPrototype)) {
-      dP(TypedArrayPrototype, TAG, {
-        get: function () { return NAME; }
-      });
-    }
-
-    O[NAME] = TypedArray;
-
-    $export($export.G + $export.W + $export.F * (TypedArray != Base), O);
-
-    $export($export.S, NAME, {
-      BYTES_PER_ELEMENT: BYTES
-    });
-
-    $export($export.S + $export.F * fails(function () { Base.of.call(TypedArray, 1); }), NAME, {
-      from: $from,
-      of: $of
-    });
-
-    if (!(BYTES_PER_ELEMENT in TypedArrayPrototype)) hide(TypedArrayPrototype, BYTES_PER_ELEMENT, BYTES);
-
-    $export($export.P, NAME, proto);
-
-    setSpecies(NAME);
-
-    $export($export.P + $export.F * FORCED_SET, NAME, { set: $set });
-
-    $export($export.P + $export.F * !CORRECT_ITER_NAME, NAME, $iterators);
-
-    if (!LIBRARY && TypedArrayPrototype.toString != arrayToString) TypedArrayPrototype.toString = arrayToString;
-
-    $export($export.P + $export.F * fails(function () {
-      new TypedArray(1).slice();
-    }), NAME, { slice: $slice });
-
-    $export($export.P + $export.F * (fails(function () {
-      return [1, 2].toLocaleString() != new TypedArray([1, 2]).toLocaleString();
-    }) || !fails(function () {
-      TypedArrayPrototype.toLocaleString.call([1, 2]);
-    })), NAME, { toLocaleString: $toLocaleString });
-
-    Iterators[NAME] = CORRECT_ITER_NAME ? $nativeIterator : $iterator;
-    if (!LIBRARY && !CORRECT_ITER_NAME) hide(TypedArrayPrototype, ITERATOR, $iterator);
-  };
-} else module.exports = function () { /* empty */ };
-
-},{"./_descriptors":"../node_modules/core-js/modules/_descriptors.js","./_library":"../node_modules/core-js/modules/_library.js","./_global":"../node_modules/core-js/modules/_global.js","./_fails":"../node_modules/core-js/modules/_fails.js","./_export":"../node_modules/core-js/modules/_export.js","./_typed":"../node_modules/core-js/modules/_typed.js","./_typed-buffer":"../node_modules/core-js/modules/_typed-buffer.js","./_ctx":"../node_modules/core-js/modules/_ctx.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_property-desc":"../node_modules/core-js/modules/_property-desc.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_to-integer":"../node_modules/core-js/modules/_to-integer.js","./_to-length":"../node_modules/core-js/modules/_to-length.js","./_to-index":"../node_modules/core-js/modules/_to-index.js","./_to-absolute-index":"../node_modules/core-js/modules/_to-absolute-index.js","./_to-primitive":"../node_modules/core-js/modules/_to-primitive.js","./_has":"../node_modules/core-js/modules/_has.js","./_classof":"../node_modules/core-js/modules/_classof.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_to-object":"../node_modules/core-js/modules/_to-object.js","./_is-array-iter":"../node_modules/core-js/modules/_is-array-iter.js","./_object-create":"../node_modules/core-js/modules/_object-create.js","./_object-gpo":"../node_modules/core-js/modules/_object-gpo.js","./_object-gopn":"../node_modules/core-js/modules/_object-gopn.js","./core.get-iterator-method":"../node_modules/core-js/modules/core.get-iterator-method.js","./_uid":"../node_modules/core-js/modules/_uid.js","./_wks":"../node_modules/core-js/modules/_wks.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_array-includes":"../node_modules/core-js/modules/_array-includes.js","./_species-constructor":"../node_modules/core-js/modules/_species-constructor.js","./es6.array.iterator":"../node_modules/core-js/modules/es6.array.iterator.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_iter-detect":"../node_modules/core-js/modules/_iter-detect.js","./_set-species":"../node_modules/core-js/modules/_set-species.js","./_array-fill":"../node_modules/core-js/modules/_array-fill.js","./_array-copy-within":"../node_modules/core-js/modules/_array-copy-within.js","./_object-dp":"../node_modules/core-js/modules/_object-dp.js","./_object-gopd":"../node_modules/core-js/modules/_object-gopd.js"}],"../node_modules/core-js/modules/es6.typed.int8-array.js":[function(require,module,exports) {
-require('./_typed-array')('Int8', 1, function (init) {
-  return function Int8Array(data, byteOffset, length) {
-    return init(this, data, byteOffset, length);
-  };
-});
-
-},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.uint8-array.js":[function(require,module,exports) {
-require('./_typed-array')('Uint8', 1, function (init) {
-  return function Uint8Array(data, byteOffset, length) {
-    return init(this, data, byteOffset, length);
-  };
-});
-
-},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.uint8-clamped-array.js":[function(require,module,exports) {
-require('./_typed-array')('Uint8', 1, function (init) {
-  return function Uint8ClampedArray(data, byteOffset, length) {
-    return init(this, data, byteOffset, length);
-  };
-}, true);
-
-},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.int16-array.js":[function(require,module,exports) {
-require('./_typed-array')('Int16', 2, function (init) {
-  return function Int16Array(data, byteOffset, length) {
-    return init(this, data, byteOffset, length);
-  };
-});
-
-},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.uint16-array.js":[function(require,module,exports) {
-require('./_typed-array')('Uint16', 2, function (init) {
-  return function Uint16Array(data, byteOffset, length) {
-    return init(this, data, byteOffset, length);
-  };
-});
-
-},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.int32-array.js":[function(require,module,exports) {
-require('./_typed-array')('Int32', 4, function (init) {
-  return function Int32Array(data, byteOffset, length) {
-    return init(this, data, byteOffset, length);
-  };
-});
-
-},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.uint32-array.js":[function(require,module,exports) {
-require('./_typed-array')('Uint32', 4, function (init) {
-  return function Uint32Array(data, byteOffset, length) {
-    return init(this, data, byteOffset, length);
-  };
-});
-
-},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.float32-array.js":[function(require,module,exports) {
-require('./_typed-array')('Float32', 4, function (init) {
-  return function Float32Array(data, byteOffset, length) {
-    return init(this, data, byteOffset, length);
-  };
-});
-
-},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/es6.typed.float64-array.js":[function(require,module,exports) {
-require('./_typed-array')('Float64', 8, function (init) {
-  return function Float64Array(data, byteOffset, length) {
-    return init(this, data, byteOffset, length);
-  };
-});
-
-},{"./_typed-array":"../node_modules/core-js/modules/_typed-array.js"}],"../node_modules/core-js/modules/_collection-weak.js":[function(require,module,exports) {
-'use strict';
-var redefineAll = require('./_redefine-all');
-var getWeak = require('./_meta').getWeak;
-var anObject = require('./_an-object');
-var isObject = require('./_is-object');
-var anInstance = require('./_an-instance');
-var forOf = require('./_for-of');
-var createArrayMethod = require('./_array-methods');
-var $has = require('./_has');
-var validate = require('./_validate-collection');
-var arrayFind = createArrayMethod(5);
-var arrayFindIndex = createArrayMethod(6);
-var id = 0;
-
-// fallback for uncaught frozen keys
-var uncaughtFrozenStore = function (that) {
-  return that._l || (that._l = new UncaughtFrozenStore());
-};
-var UncaughtFrozenStore = function () {
-  this.a = [];
-};
-var findUncaughtFrozen = function (store, key) {
-  return arrayFind(store.a, function (it) {
-    return it[0] === key;
-  });
-};
-UncaughtFrozenStore.prototype = {
-  get: function (key) {
-    var entry = findUncaughtFrozen(this, key);
-    if (entry) return entry[1];
-  },
-  has: function (key) {
-    return !!findUncaughtFrozen(this, key);
-  },
-  set: function (key, value) {
-    var entry = findUncaughtFrozen(this, key);
-    if (entry) entry[1] = value;
-    else this.a.push([key, value]);
-  },
-  'delete': function (key) {
-    var index = arrayFindIndex(this.a, function (it) {
-      return it[0] === key;
-    });
-    if (~index) this.a.splice(index, 1);
-    return !!~index;
-  }
-};
-
-module.exports = {
-  getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {
-    var C = wrapper(function (that, iterable) {
-      anInstance(that, C, NAME, '_i');
-      that._t = NAME;      // collection type
-      that._i = id++;      // collection id
-      that._l = undefined; // leak store for uncaught frozen objects
-      if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
-    });
-    redefineAll(C.prototype, {
-      // 23.3.3.2 WeakMap.prototype.delete(key)
-      // 23.4.3.3 WeakSet.prototype.delete(value)
-      'delete': function (key) {
-        if (!isObject(key)) return false;
-        var data = getWeak(key);
-        if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);
-        return data && $has(data, this._i) && delete data[this._i];
-      },
-      // 23.3.3.4 WeakMap.prototype.has(key)
-      // 23.4.3.4 WeakSet.prototype.has(value)
-      has: function has(key) {
-        if (!isObject(key)) return false;
-        var data = getWeak(key);
-        if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);
-        return data && $has(data, this._i);
-      }
-    });
-    return C;
-  },
-  def: function (that, key, value) {
-    var data = getWeak(anObject(key), true);
-    if (data === true) uncaughtFrozenStore(that).set(key, value);
-    else data[that._i] = value;
-    return that;
-  },
-  ufstore: uncaughtFrozenStore
-};
-
-},{"./_redefine-all":"../node_modules/core-js/modules/_redefine-all.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_an-object":"../node_modules/core-js/modules/_an-object.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_an-instance":"../node_modules/core-js/modules/_an-instance.js","./_for-of":"../node_modules/core-js/modules/_for-of.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_has":"../node_modules/core-js/modules/_has.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js"}],"../node_modules/core-js/modules/es6.weak-map.js":[function(require,module,exports) {
-
-'use strict';
-var global = require('./_global');
-var each = require('./_array-methods')(0);
-var redefine = require('./_redefine');
-var meta = require('./_meta');
-var assign = require('./_object-assign');
-var weak = require('./_collection-weak');
-var isObject = require('./_is-object');
-var validate = require('./_validate-collection');
-var NATIVE_WEAK_MAP = require('./_validate-collection');
-var IS_IE11 = !global.ActiveXObject && 'ActiveXObject' in global;
-var WEAK_MAP = 'WeakMap';
-var getWeak = meta.getWeak;
-var isExtensible = Object.isExtensible;
-var uncaughtFrozenStore = weak.ufstore;
-var InternalMap;
-
-var wrapper = function (get) {
-  return function WeakMap() {
-    return get(this, arguments.length > 0 ? arguments[0] : undefined);
-  };
-};
-
-var methods = {
-  // 23.3.3.3 WeakMap.prototype.get(key)
-  get: function get(key) {
-    if (isObject(key)) {
-      var data = getWeak(key);
-      if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);
-      return data ? data[this._i] : undefined;
-    }
-  },
-  // 23.3.3.5 WeakMap.prototype.set(key, value)
-  set: function set(key, value) {
-    return weak.def(validate(this, WEAK_MAP), key, value);
-  }
-};
-
-// 23.3 WeakMap Objects
-var $WeakMap = module.exports = require('./_collection')(WEAK_MAP, wrapper, methods, weak, true, true);
-
-// IE11 WeakMap frozen keys fix
-if (NATIVE_WEAK_MAP && IS_IE11) {
-  InternalMap = weak.getConstructor(wrapper, WEAK_MAP);
-  assign(InternalMap.prototype, methods);
-  meta.NEED = true;
-  each(['delete', 'has', 'get', 'set'], function (key) {
-    var proto = $WeakMap.prototype;
-    var method = proto[key];
-    redefine(proto, key, function (a, b) {
-      // store frozen objects on internal weakmap shim
-      if (isObject(a) && !isExtensible(a)) {
-        if (!this._f) this._f = new InternalMap();
-        var result = this._f[key](a, b);
-        return key == 'set' ? this : result;
-      // store all the rest on native weakmap
-      } return method.call(this, a, b);
-    });
-  });
-}
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_array-methods":"../node_modules/core-js/modules/_array-methods.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_meta":"../node_modules/core-js/modules/_meta.js","./_object-assign":"../node_modules/core-js/modules/_object-assign.js","./_collection-weak":"../node_modules/core-js/modules/_collection-weak.js","./_is-object":"../node_modules/core-js/modules/_is-object.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js","./_collection":"../node_modules/core-js/modules/_collection.js"}],"../node_modules/core-js/modules/es6.weak-set.js":[function(require,module,exports) {
-'use strict';
-var weak = require('./_collection-weak');
-var validate = require('./_validate-collection');
-var WEAK_SET = 'WeakSet';
-
-// 23.4 WeakSet Objects
-require('./_collection')(WEAK_SET, function (get) {
-  return function WeakSet() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
-}, {
-  // 23.4.3.1 WeakSet.prototype.add(value)
-  add: function add(value) {
-    return weak.def(validate(this, WEAK_SET), value, true);
-  }
-}, weak, false, true);
-
-},{"./_collection-weak":"../node_modules/core-js/modules/_collection-weak.js","./_validate-collection":"../node_modules/core-js/modules/_validate-collection.js","./_collection":"../node_modules/core-js/modules/_collection.js"}],"../node_modules/core-js/modules/web.timers.js":[function(require,module,exports) {
-
-// ie9- setTimeout & setInterval additional parameters fix
-var global = require('./_global');
-var $export = require('./_export');
-var userAgent = require('./_user-agent');
-var slice = [].slice;
-var MSIE = /MSIE .\./.test(userAgent); // <- dirty ie9- check
-var wrap = function (set) {
-  return function (fn, time /* , ...args */) {
-    var boundArgs = arguments.length > 2;
-    var args = boundArgs ? slice.call(arguments, 2) : false;
-    return set(boundArgs ? function () {
-      // eslint-disable-next-line no-new-func
-      (typeof fn == 'function' ? fn : Function(fn)).apply(this, args);
-    } : fn, time);
-  };
-};
-$export($export.G + $export.B + $export.F * MSIE, {
-  setTimeout: wrap(global.setTimeout),
-  setInterval: wrap(global.setInterval)
-});
-
-},{"./_global":"../node_modules/core-js/modules/_global.js","./_export":"../node_modules/core-js/modules/_export.js","./_user-agent":"../node_modules/core-js/modules/_user-agent.js"}],"../node_modules/core-js/modules/web.immediate.js":[function(require,module,exports) {
-var $export = require('./_export');
-var $task = require('./_task');
-$export($export.G + $export.B, {
-  setImmediate: $task.set,
-  clearImmediate: $task.clear
-});
-
-},{"./_export":"../node_modules/core-js/modules/_export.js","./_task":"../node_modules/core-js/modules/_task.js"}],"../node_modules/core-js/modules/web.dom.iterable.js":[function(require,module,exports) {
-
-var $iterators = require('./es6.array.iterator');
-var getKeys = require('./_object-keys');
-var redefine = require('./_redefine');
-var global = require('./_global');
-var hide = require('./_hide');
-var Iterators = require('./_iterators');
-var wks = require('./_wks');
-var ITERATOR = wks('iterator');
-var TO_STRING_TAG = wks('toStringTag');
-var ArrayValues = Iterators.Array;
-
-var DOMIterables = {
-  CSSRuleList: true, // TODO: Not spec compliant, should be false.
-  CSSStyleDeclaration: false,
-  CSSValueList: false,
-  ClientRectList: false,
-  DOMRectList: false,
-  DOMStringList: false,
-  DOMTokenList: true,
-  DataTransferItemList: false,
-  FileList: false,
-  HTMLAllCollection: false,
-  HTMLCollection: false,
-  HTMLFormElement: false,
-  HTMLSelectElement: false,
-  MediaList: true, // TODO: Not spec compliant, should be false.
-  MimeTypeArray: false,
-  NamedNodeMap: false,
-  NodeList: true,
-  PaintRequestList: false,
-  Plugin: false,
-  PluginArray: false,
-  SVGLengthList: false,
-  SVGNumberList: false,
-  SVGPathSegList: false,
-  SVGPointList: false,
-  SVGStringList: false,
-  SVGTransformList: false,
-  SourceBufferList: false,
-  StyleSheetList: true, // TODO: Not spec compliant, should be false.
-  TextTrackCueList: false,
-  TextTrackList: false,
-  TouchList: false
-};
-
-for (var collections = getKeys(DOMIterables), i = 0; i < collections.length; i++) {
-  var NAME = collections[i];
-  var explicit = DOMIterables[NAME];
-  var Collection = global[NAME];
-  var proto = Collection && Collection.prototype;
-  var key;
-  if (proto) {
-    if (!proto[ITERATOR]) hide(proto, ITERATOR, ArrayValues);
-    if (!proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
-    Iterators[NAME] = ArrayValues;
-    if (explicit) for (key in $iterators) if (!proto[key]) redefine(proto, key, $iterators[key], true);
-  }
-}
-
-},{"./es6.array.iterator":"../node_modules/core-js/modules/es6.array.iterator.js","./_object-keys":"../node_modules/core-js/modules/_object-keys.js","./_redefine":"../node_modules/core-js/modules/_redefine.js","./_global":"../node_modules/core-js/modules/_global.js","./_hide":"../node_modules/core-js/modules/_hide.js","./_iterators":"../node_modules/core-js/modules/_iterators.js","./_wks":"../node_modules/core-js/modules/_wks.js"}],"../node_modules/regenerator-runtime/runtime.js":[function(require,module,exports) {
-/**
- * Copyright (c) 2014-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-var runtime = (function (exports) {
-  "use strict";
-
-  var Op = Object.prototype;
-  var hasOwn = Op.hasOwnProperty;
-  var undefined; // More compressible than void 0.
-  var $Symbol = typeof Symbol === "function" ? Symbol : {};
-  var iteratorSymbol = $Symbol.iterator || "@@iterator";
-  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
-  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";
-
-  function wrap(innerFn, outerFn, self, tryLocsList) {
-    // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
-    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
-    var generator = Object.create(protoGenerator.prototype);
-    var context = new Context(tryLocsList || []);
-
-    // The ._invoke method unifies the implementations of the .next,
-    // .throw, and .return methods.
-    generator._invoke = makeInvokeMethod(innerFn, self, context);
-
-    return generator;
-  }
-  exports.wrap = wrap;
-
-  // Try/catch helper to minimize deoptimizations. Returns a completion
-  // record like context.tryEntries[i].completion. This interface could
-  // have been (and was previously) designed to take a closure to be
-  // invoked without arguments, but in all the cases we care about we
-  // already have an existing method we want to call, so there's no need
-  // to create a new function object. We can even get away with assuming
-  // the method takes exactly one argument, since that happens to be true
-  // in every case, so we don't have to touch the arguments object. The
-  // only additional allocation required is the completion record, which
-  // has a stable shape and so hopefully should be cheap to allocate.
-  function tryCatch(fn, obj, arg) {
-    try {
-      return { type: "normal", arg: fn.call(obj, arg) };
-    } catch (err) {
-      return { type: "throw", arg: err };
-    }
-  }
-
-  var GenStateSuspendedStart = "suspendedStart";
-  var GenStateSuspendedYield = "suspendedYield";
-  var GenStateExecuting = "executing";
-  var GenStateCompleted = "completed";
-
-  // Returning this object from the innerFn has the same effect as
-  // breaking out of the dispatch switch statement.
-  var ContinueSentinel = {};
-
-  // Dummy constructor functions that we use as the .constructor and
-  // .constructor.prototype properties for functions that return Generator
-  // objects. For full spec compliance, you may wish to configure your
-  // minifier not to mangle the names of these two functions.
-  function Generator() {}
-  function GeneratorFunction() {}
-  function GeneratorFunctionPrototype() {}
-
-  // This is a polyfill for %IteratorPrototype% for environments that
-  // don't natively support it.
-  var IteratorPrototype = {};
-  IteratorPrototype[iteratorSymbol] = function () {
-    return this;
-  };
-
-  var getProto = Object.getPrototypeOf;
-  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
-  if (NativeIteratorPrototype &&
-      NativeIteratorPrototype !== Op &&
-      hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
-    // This environment has a native %IteratorPrototype%; use it instead
-    // of the polyfill.
-    IteratorPrototype = NativeIteratorPrototype;
-  }
-
-  var Gp = GeneratorFunctionPrototype.prototype =
-    Generator.prototype = Object.create(IteratorPrototype);
-  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
-  GeneratorFunctionPrototype.constructor = GeneratorFunction;
-  GeneratorFunctionPrototype[toStringTagSymbol] =
-    GeneratorFunction.displayName = "GeneratorFunction";
-
-  // Helper for defining the .next, .throw, and .return methods of the
-  // Iterator interface in terms of a single ._invoke method.
-  function defineIteratorMethods(prototype) {
-    ["next", "throw", "return"].forEach(function(method) {
-      prototype[method] = function(arg) {
-        return this._invoke(method, arg);
-      };
-    });
-  }
-
-  exports.isGeneratorFunction = function(genFun) {
-    var ctor = typeof genFun === "function" && genFun.constructor;
-    return ctor
-      ? ctor === GeneratorFunction ||
-        // For the native GeneratorFunction constructor, the best we can
-        // do is to check its .name property.
-        (ctor.displayName || ctor.name) === "GeneratorFunction"
-      : false;
-  };
-
-  exports.mark = function(genFun) {
-    if (Object.setPrototypeOf) {
-      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
-    } else {
-      genFun.__proto__ = GeneratorFunctionPrototype;
-      if (!(toStringTagSymbol in genFun)) {
-        genFun[toStringTagSymbol] = "GeneratorFunction";
-      }
-    }
-    genFun.prototype = Object.create(Gp);
-    return genFun;
-  };
-
-  // Within the body of any async function, `await x` is transformed to
-  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
-  // `hasOwn.call(value, "__await")` to determine if the yielded value is
-  // meant to be awaited.
-  exports.awrap = function(arg) {
-    return { __await: arg };
-  };
-
-  function AsyncIterator(generator) {
-    function invoke(method, arg, resolve, reject) {
-      var record = tryCatch(generator[method], generator, arg);
-      if (record.type === "throw") {
-        reject(record.arg);
-      } else {
-        var result = record.arg;
-        var value = result.value;
-        if (value &&
-            typeof value === "object" &&
-            hasOwn.call(value, "__await")) {
-          return Promise.resolve(value.__await).then(function(value) {
-            invoke("next", value, resolve, reject);
-          }, function(err) {
-            invoke("throw", err, resolve, reject);
-          });
-        }
-
-        return Promise.resolve(value).then(function(unwrapped) {
-          // When a yielded Promise is resolved, its final value becomes
-          // the .value of the Promise<{value,done}> result for the
-          // current iteration.
-          result.value = unwrapped;
-          resolve(result);
-        }, function(error) {
-          // If a rejected Promise was yielded, throw the rejection back
-          // into the async generator function so it can be handled there.
-          return invoke("throw", error, resolve, reject);
-        });
-      }
-    }
-
-    var previousPromise;
-
-    function enqueue(method, arg) {
-      function callInvokeWithMethodAndArg() {
-        return new Promise(function(resolve, reject) {
-          invoke(method, arg, resolve, reject);
-        });
-      }
-
-      return previousPromise =
-        // If enqueue has been called before, then we want to wait until
-        // all previous Promises have been resolved before calling invoke,
-        // so that results are always delivered in the correct order. If
-        // enqueue has not been called before, then it is important to
-        // call invoke immediately, without waiting on a callback to fire,
-        // so that the async generator function has the opportunity to do
-        // any necessary setup in a predictable way. This predictability
-        // is why the Promise constructor synchronously invokes its
-        // executor callback, and why async functions synchronously
-        // execute code before the first await. Since we implement simple
-        // async functions in terms of async generators, it is especially
-        // important to get this right, even though it requires care.
-        previousPromise ? previousPromise.then(
-          callInvokeWithMethodAndArg,
-          // Avoid propagating failures to Promises returned by later
-          // invocations of the iterator.
-          callInvokeWithMethodAndArg
-        ) : callInvokeWithMethodAndArg();
-    }
-
-    // Define the unified helper method that is used to implement .next,
-    // .throw, and .return (see defineIteratorMethods).
-    this._invoke = enqueue;
-  }
-
-  defineIteratorMethods(AsyncIterator.prototype);
-  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
-    return this;
-  };
-  exports.AsyncIterator = AsyncIterator;
-
-  // Note that simple async functions are implemented on top of
-  // AsyncIterator objects; they just return a Promise for the value of
-  // the final result produced by the iterator.
-  exports.async = function(innerFn, outerFn, self, tryLocsList) {
-    var iter = new AsyncIterator(
-      wrap(innerFn, outerFn, self, tryLocsList)
-    );
-
-    return exports.isGeneratorFunction(outerFn)
-      ? iter // If outerFn is a generator, return the full iterator.
-      : iter.next().then(function(result) {
-          return result.done ? result.value : iter.next();
-        });
-  };
-
-  function makeInvokeMethod(innerFn, self, context) {
-    var state = GenStateSuspendedStart;
-
-    return function invoke(method, arg) {
-      if (state === GenStateExecuting) {
-        throw new Error("Generator is already running");
-      }
-
-      if (state === GenStateCompleted) {
-        if (method === "throw") {
-          throw arg;
-        }
-
-        // Be forgiving, per 25.3.3.3.3 of the spec:
-        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
-        return doneResult();
-      }
-
-      context.method = method;
-      context.arg = arg;
-
-      while (true) {
-        var delegate = context.delegate;
-        if (delegate) {
-          var delegateResult = maybeInvokeDelegate(delegate, context);
-          if (delegateResult) {
-            if (delegateResult === ContinueSentinel) continue;
-            return delegateResult;
-          }
-        }
-
-        if (context.method === "next") {
-          // Setting context._sent for legacy support of Babel's
-          // function.sent implementation.
-          context.sent = context._sent = context.arg;
-
-        } else if (context.method === "throw") {
-          if (state === GenStateSuspendedStart) {
-            state = GenStateCompleted;
-            throw context.arg;
-          }
-
-          context.dispatchException(context.arg);
-
-        } else if (context.method === "return") {
-          context.abrupt("return", context.arg);
-        }
-
-        state = GenStateExecuting;
-
-        var record = tryCatch(innerFn, self, context);
-        if (record.type === "normal") {
-          // If an exception is thrown from innerFn, we leave state ===
-          // GenStateExecuting and loop back for another invocation.
-          state = context.done
-            ? GenStateCompleted
-            : GenStateSuspendedYield;
-
-          if (record.arg === ContinueSentinel) {
-            continue;
-          }
-
-          return {
-            value: record.arg,
-            done: context.done
-          };
-
-        } else if (record.type === "throw") {
-          state = GenStateCompleted;
-          // Dispatch the exception by looping back around to the
-          // context.dispatchException(context.arg) call above.
-          context.method = "throw";
-          context.arg = record.arg;
-        }
-      }
-    };
-  }
-
-  // Call delegate.iterator[context.method](context.arg) and handle the
-  // result, either by returning a { value, done } result from the
-  // delegate iterator, or by modifying context.method and context.arg,
-  // setting context.delegate to null, and returning the ContinueSentinel.
-  function maybeInvokeDelegate(delegate, context) {
-    var method = delegate.iterator[context.method];
-    if (method === undefined) {
-      // A .throw or .return when the delegate iterator has no .throw
-      // method always terminates the yield* loop.
-      context.delegate = null;
-
-      if (context.method === "throw") {
-        // Note: ["return"] must be used for ES3 parsing compatibility.
-        if (delegate.iterator["return"]) {
-          // If the delegate iterator has a return method, give it a
-          // chance to clean up.
-          context.method = "return";
-          context.arg = undefined;
-          maybeInvokeDelegate(delegate, context);
-
-          if (context.method === "throw") {
-            // If maybeInvokeDelegate(context) changed context.method from
-            // "return" to "throw", let that override the TypeError below.
-            return ContinueSentinel;
-          }
-        }
-
-        context.method = "throw";
-        context.arg = new TypeError(
-          "The iterator does not provide a 'throw' method");
-      }
-
-      return ContinueSentinel;
-    }
-
-    var record = tryCatch(method, delegate.iterator, context.arg);
-
-    if (record.type === "throw") {
-      context.method = "throw";
-      context.arg = record.arg;
-      context.delegate = null;
-      return ContinueSentinel;
-    }
-
-    var info = record.arg;
-
-    if (! info) {
-      context.method = "throw";
-      context.arg = new TypeError("iterator result is not an object");
-      context.delegate = null;
-      return ContinueSentinel;
-    }
-
-    if (info.done) {
-      // Assign the result of the finished delegate to the temporary
-      // variable specified by delegate.resultName (see delegateYield).
-      context[delegate.resultName] = info.value;
-
-      // Resume execution at the desired location (see delegateYield).
-      context.next = delegate.nextLoc;
-
-      // If context.method was "throw" but the delegate handled the
-      // exception, let the outer generator proceed normally. If
-      // context.method was "next", forget context.arg since it has been
-      // "consumed" by the delegate iterator. If context.method was
-      // "return", allow the original .return call to continue in the
-      // outer generator.
-      if (context.method !== "return") {
-        context.method = "next";
-        context.arg = undefined;
-      }
-
-    } else {
-      // Re-yield the result returned by the delegate method.
-      return info;
-    }
-
-    // The delegate iterator is finished, so forget it and continue with
-    // the outer generator.
-    context.delegate = null;
-    return ContinueSentinel;
-  }
-
-  // Define Generator.prototype.{next,throw,return} in terms of the
-  // unified ._invoke helper method.
-  defineIteratorMethods(Gp);
-
-  Gp[toStringTagSymbol] = "Generator";
-
-  // A Generator should always return itself as the iterator object when the
-  // @@iterator function is called on it. Some browsers' implementations of the
-  // iterator prototype chain incorrectly implement this, causing the Generator
-  // object to not be returned from this call. This ensures that doesn't happen.
-  // See https://github.com/facebook/regenerator/issues/274 for more details.
-  Gp[iteratorSymbol] = function() {
-    return this;
-  };
-
-  Gp.toString = function() {
-    return "[object Generator]";
-  };
-
-  function pushTryEntry(locs) {
-    var entry = { tryLoc: locs[0] };
-
-    if (1 in locs) {
-      entry.catchLoc = locs[1];
-    }
-
-    if (2 in locs) {
-      entry.finallyLoc = locs[2];
-      entry.afterLoc = locs[3];
-    }
-
-    this.tryEntries.push(entry);
-  }
-
-  function resetTryEntry(entry) {
-    var record = entry.completion || {};
-    record.type = "normal";
-    delete record.arg;
-    entry.completion = record;
-  }
-
-  function Context(tryLocsList) {
-    // The root entry object (effectively a try statement without a catch
-    // or a finally block) gives us a place to store values thrown from
-    // locations where there is no enclosing try statement.
-    this.tryEntries = [{ tryLoc: "root" }];
-    tryLocsList.forEach(pushTryEntry, this);
-    this.reset(true);
-  }
-
-  exports.keys = function(object) {
-    var keys = [];
-    for (var key in object) {
-      keys.push(key);
-    }
-    keys.reverse();
-
-    // Rather than returning an object with a next method, we keep
-    // things simple and return the next function itself.
-    return function next() {
-      while (keys.length) {
-        var key = keys.pop();
-        if (key in object) {
-          next.value = key;
-          next.done = false;
-          return next;
-        }
-      }
-
-      // To avoid creating an additional object, we just hang the .value
-      // and .done properties off the next function object itself. This
-      // also ensures that the minifier will not anonymize the function.
-      next.done = true;
-      return next;
-    };
-  };
-
-  function values(iterable) {
-    if (iterable) {
-      var iteratorMethod = iterable[iteratorSymbol];
-      if (iteratorMethod) {
-        return iteratorMethod.call(iterable);
-      }
-
-      if (typeof iterable.next === "function") {
-        return iterable;
-      }
-
-      if (!isNaN(iterable.length)) {
-        var i = -1, next = function next() {
-          while (++i < iterable.length) {
-            if (hasOwn.call(iterable, i)) {
-              next.value = iterable[i];
-              next.done = false;
-              return next;
-            }
-          }
-
-          next.value = undefined;
-          next.done = true;
-
-          return next;
-        };
-
-        return next.next = next;
-      }
-    }
-
-    // Return an iterator with no values.
-    return { next: doneResult };
-  }
-  exports.values = values;
-
-  function doneResult() {
-    return { value: undefined, done: true };
-  }
-
-  Context.prototype = {
-    constructor: Context,
-
-    reset: function(skipTempReset) {
-      this.prev = 0;
-      this.next = 0;
-      // Resetting context._sent for legacy support of Babel's
-      // function.sent implementation.
-      this.sent = this._sent = undefined;
-      this.done = false;
-      this.delegate = null;
-
-      this.method = "next";
-      this.arg = undefined;
-
-      this.tryEntries.forEach(resetTryEntry);
-
-      if (!skipTempReset) {
-        for (var name in this) {
-          // Not sure about the optimal order of these conditions:
-          if (name.charAt(0) === "t" &&
-              hasOwn.call(this, name) &&
-              !isNaN(+name.slice(1))) {
-            this[name] = undefined;
-          }
-        }
-      }
-    },
-
-    stop: function() {
-      this.done = true;
-
-      var rootEntry = this.tryEntries[0];
-      var rootRecord = rootEntry.completion;
-      if (rootRecord.type === "throw") {
-        throw rootRecord.arg;
-      }
-
-      return this.rval;
-    },
-
-    dispatchException: function(exception) {
-      if (this.done) {
-        throw exception;
-      }
-
-      var context = this;
-      function handle(loc, caught) {
-        record.type = "throw";
-        record.arg = exception;
-        context.next = loc;
-
-        if (caught) {
-          // If the dispatched exception was caught by a catch block,
-          // then let that catch block handle the exception normally.
-          context.method = "next";
-          context.arg = undefined;
-        }
-
-        return !! caught;
-      }
-
-      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
-        var entry = this.tryEntries[i];
-        var record = entry.completion;
-
-        if (entry.tryLoc === "root") {
-          // Exception thrown outside of any try block that could handle
-          // it, so set the completion value of the entire function to
-          // throw the exception.
-          return handle("end");
-        }
-
-        if (entry.tryLoc <= this.prev) {
-          var hasCatch = hasOwn.call(entry, "catchLoc");
-          var hasFinally = hasOwn.call(entry, "finallyLoc");
-
-          if (hasCatch && hasFinally) {
-            if (this.prev < entry.catchLoc) {
-              return handle(entry.catchLoc, true);
-            } else if (this.prev < entry.finallyLoc) {
-              return handle(entry.finallyLoc);
-            }
-
-          } else if (hasCatch) {
-            if (this.prev < entry.catchLoc) {
-              return handle(entry.catchLoc, true);
-            }
-
-          } else if (hasFinally) {
-            if (this.prev < entry.finallyLoc) {
-              return handle(entry.finallyLoc);
-            }
-
-          } else {
-            throw new Error("try statement without catch or finally");
-          }
-        }
-      }
-    },
-
-    abrupt: function(type, arg) {
-      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
-        var entry = this.tryEntries[i];
-        if (entry.tryLoc <= this.prev &&
-            hasOwn.call(entry, "finallyLoc") &&
-            this.prev < entry.finallyLoc) {
-          var finallyEntry = entry;
-          break;
-        }
-      }
-
-      if (finallyEntry &&
-          (type === "break" ||
-           type === "continue") &&
-          finallyEntry.tryLoc <= arg &&
-          arg <= finallyEntry.finallyLoc) {
-        // Ignore the finally entry if control is not jumping to a
-        // location outside the try/catch block.
-        finallyEntry = null;
-      }
-
-      var record = finallyEntry ? finallyEntry.completion : {};
-      record.type = type;
-      record.arg = arg;
-
-      if (finallyEntry) {
-        this.method = "next";
-        this.next = finallyEntry.finallyLoc;
-        return ContinueSentinel;
-      }
-
-      return this.complete(record);
-    },
-
-    complete: function(record, afterLoc) {
-      if (record.type === "throw") {
-        throw record.arg;
-      }
-
-      if (record.type === "break" ||
-          record.type === "continue") {
-        this.next = record.arg;
-      } else if (record.type === "return") {
-        this.rval = this.arg = record.arg;
-        this.method = "return";
-        this.next = "end";
-      } else if (record.type === "normal" && afterLoc) {
-        this.next = afterLoc;
-      }
-
-      return ContinueSentinel;
-    },
-
-    finish: function(finallyLoc) {
-      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
-        var entry = this.tryEntries[i];
-        if (entry.finallyLoc === finallyLoc) {
-          this.complete(entry.completion, entry.afterLoc);
-          resetTryEntry(entry);
-          return ContinueSentinel;
-        }
-      }
-    },
-
-    "catch": function(tryLoc) {
-      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
-        var entry = this.tryEntries[i];
-        if (entry.tryLoc === tryLoc) {
-          var record = entry.completion;
-          if (record.type === "throw") {
-            var thrown = record.arg;
-            resetTryEntry(entry);
-          }
-          return thrown;
-        }
-      }
-
-      // The context.catch method must only be called with a location
-      // argument that corresponds to a known catch block.
-      throw new Error("illegal catch attempt");
-    },
-
-    delegateYield: function(iterable, resultName, nextLoc) {
-      this.delegate = {
-        iterator: values(iterable),
-        resultName: resultName,
-        nextLoc: nextLoc
-      };
-
-      if (this.method === "next") {
-        // Deliberately forget the last sent value so that we don't
-        // accidentally pass it on to the delegate.
-        this.arg = undefined;
-      }
-
-      return ContinueSentinel;
-    }
-  };
-
-  // Regardless of whether this script is executing as a CommonJS module
-  // or not, return the runtime object so that we can declare the variable
-  // regeneratorRuntime in the outer scope, which allows this module to be
-  // injected easily by `bin/regenerator --include-runtime script.js`.
-  return exports;
-
-}(
-  // If this script is executing as a CommonJS module, use module.exports
-  // as the regeneratorRuntime namespace. Otherwise create a new empty
-  // object. Either way, the resulting object will be used to initialize
-  // the regeneratorRuntime variable at the top of this file.
-  typeof module === "object" ? module.exports : {}
-));
-
-try {
-  regeneratorRuntime = runtime;
-} catch (accidentalStrictMode) {
-  // This module should not be running in strict mode, so the above
-  // assignment should always work unless something is misconfigured. Just
-  // in case runtime.js accidentally runs in strict mode, we can escape
-  // strict mode using a global Function call. This could conceivably fail
-  // if a Content Security Policy forbids using Function, but in that case
-  // the proper solution is to fix the accidental strict mode problem. If
-  // you've misconfigured your bundler to force strict mode and applied a
-  // CSP to forbid Function, and you're not willing to fix either of those
-  // problems, please detail your unique predicament in a GitHub issue.
-  Function("r", "regeneratorRuntime = r")(runtime);
-}
-
-},{}],"../node_modules/stats.js/src/Stats.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-/**
- * @author mrdoob / http://mrdoob.com/
- */
-var Stats = function () {
-  var mode = 0;
-  var container = document.createElement('div');
-  container.style.cssText = 'position:fixed;top:0;left:0;cursor:pointer;opacity:0.9;z-index:10000';
-  container.addEventListener('click', function (event) {
-    event.preventDefault();
-    showPanel(++mode % container.children.length);
-  }, false); //
-
-  function addPanel(panel) {
-    container.appendChild(panel.dom);
-    return panel;
-  }
-
-  function showPanel(id) {
-    for (var i = 0; i < container.children.length; i++) {
-      container.children[i].style.display = i === id ? 'block' : 'none';
-    }
-
-    mode = id;
-  } //
-
-
-  var beginTime = (performance || Date).now(),
-      prevTime = beginTime,
-      frames = 0;
-  var fpsPanel = addPanel(new Stats.Panel('FPS', '#0ff', '#002'));
-  var msPanel = addPanel(new Stats.Panel('MS', '#0f0', '#020'));
-
-  if (self.performance && self.performance.memory) {
-    var memPanel = addPanel(new Stats.Panel('MB', '#f08', '#201'));
-  }
-
-  showPanel(0);
-  return {
-    REVISION: 16,
-    dom: container,
-    addPanel: addPanel,
-    showPanel: showPanel,
-    begin: function () {
-      beginTime = (performance || Date).now();
-    },
-    end: function () {
-      frames++;
-      var time = (performance || Date).now();
-      msPanel.update(time - beginTime, 200);
-
-      if (time > prevTime + 1000) {
-        fpsPanel.update(frames * 1000 / (time - prevTime), 100);
-        prevTime = time;
-        frames = 0;
-
-        if (memPanel) {
-          var memory = performance.memory;
-          memPanel.update(memory.usedJSHeapSize / 1048576, memory.jsHeapSizeLimit / 1048576);
-        }
-      }
-
-      return time;
-    },
-    update: function () {
-      beginTime = this.end();
-    },
-    // Backwards Compatibility
-    domElement: container,
-    setMode: showPanel
-  };
-};
-
-exports.default = Stats;
-
-Stats.Panel = function (name, fg, bg) {
-  var min = Infinity,
-      max = 0,
-      round = Math.round;
-  var PR = round(window.devicePixelRatio || 1);
-  var WIDTH = 80 * PR,
-      HEIGHT = 48 * PR,
-      TEXT_X = 3 * PR,
-      TEXT_Y = 2 * PR,
-      GRAPH_X = 3 * PR,
-      GRAPH_Y = 15 * PR,
-      GRAPH_WIDTH = 74 * PR,
-      GRAPH_HEIGHT = 30 * PR;
-  var canvas = document.createElement('canvas');
-  canvas.width = WIDTH;
-  canvas.height = HEIGHT;
-  canvas.style.cssText = 'width:80px;height:48px';
-  var context = canvas.getContext('2d');
-  context.font = 'bold ' + 9 * PR + 'px Helvetica,Arial,sans-serif';
-  context.textBaseline = 'top';
-  context.fillStyle = bg;
-  context.fillRect(0, 0, WIDTH, HEIGHT);
-  context.fillStyle = fg;
-  context.fillText(name, TEXT_X, TEXT_Y);
-  context.fillRect(GRAPH_X, GRAPH_Y, GRAPH_WIDTH, GRAPH_HEIGHT);
-  context.fillStyle = bg;
-  context.globalAlpha = 0.9;
-  context.fillRect(GRAPH_X, GRAPH_Y, GRAPH_WIDTH, GRAPH_HEIGHT);
-  return {
-    dom: canvas,
-    update: function (value, maxValue) {
-      min = Math.min(min, value);
-      max = Math.max(max, value);
-      context.fillStyle = bg;
-      context.globalAlpha = 1;
-      context.fillRect(0, 0, WIDTH, GRAPH_Y);
-      context.fillStyle = fg;
-      context.fillText(round(value) + ' ' + name + ' (' + round(min) + '-' + round(max) + ')', TEXT_X, TEXT_Y);
-      context.drawImage(canvas, GRAPH_X + PR, GRAPH_Y, GRAPH_WIDTH - PR, GRAPH_HEIGHT, GRAPH_X, GRAPH_Y, GRAPH_WIDTH - PR, GRAPH_HEIGHT);
-      context.fillRect(GRAPH_X + GRAPH_WIDTH - PR, GRAPH_Y, PR, GRAPH_HEIGHT);
-      context.fillStyle = bg;
-      context.globalAlpha = 0.9;
-      context.fillRect(GRAPH_X + GRAPH_WIDTH - PR, GRAPH_Y, PR, round((1 - value / maxValue) * GRAPH_HEIGHT));
-    }
-  };
-};
-},{}],"../node_modules/dat.gui/build/dat.gui.module.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = exports.GUI = exports.gui = exports.dom = exports.controllers = exports.color = void 0;
-
-/**
- * dat-gui JavaScript Controller Library
- * http://code.google.com/p/dat-gui
- *
- * Copyright 2011 Data Arts Team, Google Creative Lab
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- */
-function ___$insertStyle(css) {
-  if (!css) {
-    return;
-  }
-
-  if (typeof window === 'undefined') {
-    return;
-  }
-
-  var style = document.createElement('style');
-  style.setAttribute('type', 'text/css');
-  style.innerHTML = css;
-  document.head.appendChild(style);
-  return css;
-}
-
-function colorToString(color, forceCSSHex) {
-  var colorFormat = color.__state.conversionName.toString();
-
-  var r = Math.round(color.r);
-  var g = Math.round(color.g);
-  var b = Math.round(color.b);
-  var a = color.a;
-  var h = Math.round(color.h);
-  var s = color.s.toFixed(1);
-  var v = color.v.toFixed(1);
-
-  if (forceCSSHex || colorFormat === 'THREE_CHAR_HEX' || colorFormat === 'SIX_CHAR_HEX') {
-    var str = color.hex.toString(16);
-
-    while (str.length < 6) {
-      str = '0' + str;
-    }
-
-    return '#' + str;
-  } else if (colorFormat === 'CSS_RGB') {
-    return 'rgb(' + r + ',' + g + ',' + b + ')';
-  } else if (colorFormat === 'CSS_RGBA') {
-    return 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';
-  } else if (colorFormat === 'HEX') {
-    return '0x' + color.hex.toString(16);
-  } else if (colorFormat === 'RGB_ARRAY') {
-    return '[' + r + ',' + g + ',' + b + ']';
-  } else if (colorFormat === 'RGBA_ARRAY') {
-    return '[' + r + ',' + g + ',' + b + ',' + a + ']';
-  } else if (colorFormat === 'RGB_OBJ') {
-    return '{r:' + r + ',g:' + g + ',b:' + b + '}';
-  } else if (colorFormat === 'RGBA_OBJ') {
-    return '{r:' + r + ',g:' + g + ',b:' + b + ',a:' + a + '}';
-  } else if (colorFormat === 'HSV_OBJ') {
-    return '{h:' + h + ',s:' + s + ',v:' + v + '}';
-  } else if (colorFormat === 'HSVA_OBJ') {
-    return '{h:' + h + ',s:' + s + ',v:' + v + ',a:' + a + '}';
-  }
-
-  return 'unknown format';
-}
-
-var ARR_EACH = Array.prototype.forEach;
-var ARR_SLICE = Array.prototype.slice;
-var Common = {
-  BREAK: {},
-  extend: function extend(target) {
-    this.each(ARR_SLICE.call(arguments, 1), function (obj) {
-      var keys = this.isObject(obj) ? Object.keys(obj) : [];
-      keys.forEach(function (key) {
-        if (!this.isUndefined(obj[key])) {
-          target[key] = obj[key];
-        }
-      }.bind(this));
-    }, this);
-    return target;
-  },
-  defaults: function defaults(target) {
-    this.each(ARR_SLICE.call(arguments, 1), function (obj) {
-      var keys = this.isObject(obj) ? Object.keys(obj) : [];
-      keys.forEach(function (key) {
-        if (this.isUndefined(target[key])) {
-          target[key] = obj[key];
-        }
-      }.bind(this));
-    }, this);
-    return target;
-  },
-  compose: function compose() {
-    var toCall = ARR_SLICE.call(arguments);
-    return function () {
-      var args = ARR_SLICE.call(arguments);
-
-      for (var i = toCall.length - 1; i >= 0; i--) {
-        args = [toCall[i].apply(this, args)];
-      }
-
-      return args[0];
-    };
-  },
-  each: function each(obj, itr, scope) {
-    if (!obj) {
-      return;
-    }
-
-    if (ARR_EACH && obj.forEach && obj.forEach === ARR_EACH) {
-      obj.forEach(itr, scope);
-    } else if (obj.length === obj.length + 0) {
-      var key = void 0;
-      var l = void 0;
-
-      for (key = 0, l = obj.length; key < l; key++) {
-        if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) {
-          return;
-        }
-      }
-    } else {
-      for (var _key in obj) {
-        if (itr.call(scope, obj[_key], _key) === this.BREAK) {
-          return;
-        }
-      }
-    }
-  },
-  defer: function defer(fnc) {
-    setTimeout(fnc, 0);
-  },
-  debounce: function debounce(func, threshold, callImmediately) {
-    var timeout = void 0;
-    return function () {
-      var obj = this;
-      var args = arguments;
-
-      function delayed() {
-        timeout = null;
-        if (!callImmediately) func.apply(obj, args);
-      }
-
-      var callNow = callImmediately || !timeout;
-      clearTimeout(timeout);
-      timeout = setTimeout(delayed, threshold);
-
-      if (callNow) {
-        func.apply(obj, args);
-      }
-    };
-  },
-  toArray: function toArray(obj) {
-    if (obj.toArray) return obj.toArray();
-    return ARR_SLICE.call(obj);
-  },
-  isUndefined: function isUndefined(obj) {
-    return obj === undefined;
-  },
-  isNull: function isNull(obj) {
-    return obj === null;
-  },
-  isNaN: function (_isNaN) {
-    function isNaN(_x) {
-      return _isNaN.apply(this, arguments);
-    }
-
-    isNaN.toString = function () {
-      return _isNaN.toString();
-    };
-
-    return isNaN;
-  }(function (obj) {
-    return isNaN(obj);
-  }),
-  isArray: Array.isArray || function (obj) {
-    return obj.constructor === Array;
-  },
-  isObject: function isObject(obj) {
-    return obj === Object(obj);
-  },
-  isNumber: function isNumber(obj) {
-    return obj === obj + 0;
-  },
-  isString: function isString(obj) {
-    return obj === obj + '';
-  },
-  isBoolean: function isBoolean(obj) {
-    return obj === false || obj === true;
-  },
-  isFunction: function isFunction(obj) {
-    return Object.prototype.toString.call(obj) === '[object Function]';
-  }
-};
-var INTERPRETATIONS = [{
-  litmus: Common.isString,
-  conversions: {
-    THREE_CHAR_HEX: {
-      read: function read(original) {
-        var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i);
-
-        if (test === null) {
-          return false;
-        }
-
-        return {
-          space: 'HEX',
-          hex: parseInt('0x' + test[1].toString() + test[1].toString() + test[2].toString() + test[2].toString() + test[3].toString() + test[3].toString(), 0)
-        };
-      },
-      write: colorToString
-    },
-    SIX_CHAR_HEX: {
-      read: function read(original) {
-        var test = original.match(/^#([A-F0-9]{6})$/i);
-
-        if (test === null) {
-          return false;
-        }
-
-        return {
-          space: 'HEX',
-          hex: parseInt('0x' + test[1].toString(), 0)
-        };
-      },
-      write: colorToString
-    },
-    CSS_RGB: {
-      read: function read(original) {
-        var test = original.match(/^rgb\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/);
-
-        if (test === null) {
-          return false;
-        }
-
-        return {
-          space: 'RGB',
-          r: parseFloat(test[1]),
-          g: parseFloat(test[2]),
-          b: parseFloat(test[3])
-        };
-      },
-      write: colorToString
-    },
-    CSS_RGBA: {
-      read: function read(original) {
-        var test = original.match(/^rgba\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/);
-
-        if (test === null) {
-          return false;
-        }
-
-        return {
-          space: 'RGB',
-          r: parseFloat(test[1]),
-          g: parseFloat(test[2]),
-          b: parseFloat(test[3]),
-          a: parseFloat(test[4])
-        };
-      },
-      write: colorToString
-    }
-  }
-}, {
-  litmus: Common.isNumber,
-  conversions: {
-    HEX: {
-      read: function read(original) {
-        return {
-          space: 'HEX',
-          hex: original,
-          conversionName: 'HEX'
-        };
-      },
-      write: function write(color) {
-        return color.hex;
-      }
-    }
-  }
-}, {
-  litmus: Common.isArray,
-  conversions: {
-    RGB_ARRAY: {
-      read: function read(original) {
-        if (original.length !== 3) {
-          return false;
-        }
-
-        return {
-          space: 'RGB',
-          r: original[0],
-          g: original[1],
-          b: original[2]
-        };
-      },
-      write: function write(color) {
-        return [color.r, color.g, color.b];
-      }
-    },
-    RGBA_ARRAY: {
-      read: function read(original) {
-        if (original.length !== 4) return false;
-        return {
-          space: 'RGB',
-          r: original[0],
-          g: original[1],
-          b: original[2],
-          a: original[3]
-        };
-      },
-      write: function write(color) {
-        return [color.r, color.g, color.b, color.a];
-      }
-    }
-  }
-}, {
-  litmus: Common.isObject,
-  conversions: {
-    RGBA_OBJ: {
-      read: function read(original) {
-        if (Common.isNumber(original.r) && Common.isNumber(original.g) && Common.isNumber(original.b) && Common.isNumber(original.a)) {
-          return {
-            space: 'RGB',
-            r: original.r,
-            g: original.g,
-            b: original.b,
-            a: original.a
-          };
-        }
-
-        return false;
-      },
-      write: function write(color) {
-        return {
-          r: color.r,
-          g: color.g,
-          b: color.b,
-          a: color.a
-        };
-      }
-    },
-    RGB_OBJ: {
-      read: function read(original) {
-        if (Common.isNumber(original.r) && Common.isNumber(original.g) && Common.isNumber(original.b)) {
-          return {
-            space: 'RGB',
-            r: original.r,
-            g: original.g,
-            b: original.b
-          };
-        }
-
-        return false;
-      },
-      write: function write(color) {
-        return {
-          r: color.r,
-          g: color.g,
-          b: color.b
-        };
-      }
-    },
-    HSVA_OBJ: {
-      read: function read(original) {
-        if (Common.isNumber(original.h) && Common.isNumber(original.s) && Common.isNumber(original.v) && Common.isNumber(original.a)) {
-          return {
-            space: 'HSV',
-            h: original.h,
-            s: original.s,
-            v: original.v,
-            a: original.a
-          };
-        }
-
-        return false;
-      },
-      write: function write(color) {
-        return {
-          h: color.h,
-          s: color.s,
-          v: color.v,
-          a: color.a
-        };
-      }
-    },
-    HSV_OBJ: {
-      read: function read(original) {
-        if (Common.isNumber(original.h) && Common.isNumber(original.s) && Common.isNumber(original.v)) {
-          return {
-            space: 'HSV',
-            h: original.h,
-            s: original.s,
-            v: original.v
-          };
-        }
-
-        return false;
-      },
-      write: function write(color) {
-        return {
-          h: color.h,
-          s: color.s,
-          v: color.v
-        };
-      }
-    }
-  }
-}];
-var result = void 0;
-var toReturn = void 0;
-
-var interpret = function interpret() {
-  toReturn = false;
-  var original = arguments.length > 1 ? Common.toArray(arguments) : arguments[0];
-  Common.each(INTERPRETATIONS, function (family) {
-    if (family.litmus(original)) {
-      Common.each(family.conversions, function (conversion, conversionName) {
-        result = conversion.read(original);
-
-        if (toReturn === false && result !== false) {
-          toReturn = result;
-          result.conversionName = conversionName;
-          result.conversion = conversion;
-          return Common.BREAK;
-        }
-      });
-      return Common.BREAK;
-    }
-  });
-  return toReturn;
-};
-
-var tmpComponent = void 0;
-var ColorMath = {
-  hsv_to_rgb: function hsv_to_rgb(h, s, v) {
-    var hi = Math.floor(h / 60) % 6;
-    var f = h / 60 - Math.floor(h / 60);
-    var p = v * (1.0 - s);
-    var q = v * (1.0 - f * s);
-    var t = v * (1.0 - (1.0 - f) * s);
-    var c = [[v, t, p], [q, v, p], [p, v, t], [p, q, v], [t, p, v], [v, p, q]][hi];
-    return {
-      r: c[0] * 255,
-      g: c[1] * 255,
-      b: c[2] * 255
-    };
-  },
-  rgb_to_hsv: function rgb_to_hsv(r, g, b) {
-    var min = Math.min(r, g, b);
-    var max = Math.max(r, g, b);
-    var delta = max - min;
-    var h = void 0;
-    var s = void 0;
-
-    if (max !== 0) {
-      s = delta / max;
-    } else {
-      return {
-        h: NaN,
-        s: 0,
-        v: 0
-      };
-    }
-
-    if (r === max) {
-      h = (g - b) / delta;
-    } else if (g === max) {
-      h = 2 + (b - r) / delta;
-    } else {
-      h = 4 + (r - g) / delta;
-    }
-
-    h /= 6;
-
-    if (h < 0) {
-      h += 1;
-    }
-
-    return {
-      h: h * 360,
-      s: s,
-      v: max / 255
-    };
-  },
-  rgb_to_hex: function rgb_to_hex(r, g, b) {
-    var hex = this.hex_with_component(0, 2, r);
-    hex = this.hex_with_component(hex, 1, g);
-    hex = this.hex_with_component(hex, 0, b);
-    return hex;
-  },
-  component_from_hex: function component_from_hex(hex, componentIndex) {
-    return hex >> componentIndex * 8 & 0xFF;
-  },
-  hex_with_component: function hex_with_component(hex, componentIndex, value) {
-    return value << (tmpComponent = componentIndex * 8) | hex & ~(0xFF << tmpComponent);
-  }
-};
-
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
-  return typeof obj;
-} : function (obj) {
-  return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
-};
-
-var classCallCheck = function (instance, Constructor) {
-  if (!(instance instanceof Constructor)) {
-    throw new TypeError("Cannot call a class as a function");
-  }
-};
-
-var createClass = function () {
-  function defineProperties(target, props) {
-    for (var i = 0; i < props.length; i++) {
-      var descriptor = props[i];
-      descriptor.enumerable = descriptor.enumerable || false;
-      descriptor.configurable = true;
-      if ("value" in descriptor) descriptor.writable = true;
-      Object.defineProperty(target, descriptor.key, descriptor);
-    }
-  }
-
-  return function (Constructor, protoProps, staticProps) {
-    if (protoProps) defineProperties(Constructor.prototype, protoProps);
-    if (staticProps) defineProperties(Constructor, staticProps);
-    return Constructor;
-  };
-}();
-
-var get = function get(object, property, receiver) {
-  if (object === null) object = Function.prototype;
-  var desc = Object.getOwnPropertyDescriptor(object, property);
-
-  if (desc === undefined) {
-    var parent = Object.getPrototypeOf(object);
-
-    if (parent === null) {
-      return undefined;
-    } else {
-      return get(parent, property, receiver);
-    }
-  } else if ("value" in desc) {
-    return desc.value;
-  } else {
-    var getter = desc.get;
-
-    if (getter === undefined) {
-      return undefined;
-    }
-
-    return getter.call(receiver);
-  }
-};
-
-var inherits = function (subClass, superClass) {
-  if (typeof superClass !== "function" && superClass !== null) {
-    throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
-  }
-
-  subClass.prototype = Object.create(superClass && superClass.prototype, {
-    constructor: {
-      value: subClass,
-      enumerable: false,
-      writable: true,
-      configurable: true
-    }
-  });
-  if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
-};
-
-var possibleConstructorReturn = function (self, call) {
-  if (!self) {
-    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
-  }
-
-  return call && (typeof call === "object" || typeof call === "function") ? call : self;
-};
-
-var Color = function () {
-  function Color() {
-    classCallCheck(this, Color);
-    this.__state = interpret.apply(this, arguments);
-
-    if (this.__state === false) {
-      throw new Error('Failed to interpret color arguments');
-    }
-
-    this.__state.a = this.__state.a || 1;
-  }
-
-  createClass(Color, [{
-    key: 'toString',
-    value: function toString() {
-      return colorToString(this);
-    }
-  }, {
-    key: 'toHexString',
-    value: function toHexString() {
-      return colorToString(this, true);
-    }
-  }, {
-    key: 'toOriginal',
-    value: function toOriginal() {
-      return this.__state.conversion.write(this);
-    }
-  }]);
-  return Color;
-}();
-
-function defineRGBComponent(target, component, componentHexIndex) {
-  Object.defineProperty(target, component, {
-    get: function get$$1() {
-      if (this.__state.space === 'RGB') {
-        return this.__state[component];
-      }
-
-      Color.recalculateRGB(this, component, componentHexIndex);
-      return this.__state[component];
-    },
-    set: function set$$1(v) {
-      if (this.__state.space !== 'RGB') {
-        Color.recalculateRGB(this, component, componentHexIndex);
-        this.__state.space = 'RGB';
-      }
-
-      this.__state[component] = v;
-    }
-  });
-}
-
-function defineHSVComponent(target, component) {
-  Object.defineProperty(target, component, {
-    get: function get$$1() {
-      if (this.__state.space === 'HSV') {
-        return this.__state[component];
-      }
-
-      Color.recalculateHSV(this);
-      return this.__state[component];
-    },
-    set: function set$$1(v) {
-      if (this.__state.space !== 'HSV') {
-        Color.recalculateHSV(this);
-        this.__state.space = 'HSV';
-      }
-
-      this.__state[component] = v;
-    }
-  });
-}
-
-Color.recalculateRGB = function (color, component, componentHexIndex) {
-  if (color.__state.space === 'HEX') {
-    color.__state[component] = ColorMath.component_from_hex(color.__state.hex, componentHexIndex);
-  } else if (color.__state.space === 'HSV') {
-    Common.extend(color.__state, ColorMath.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v));
-  } else {
-    throw new Error('Corrupted color state');
-  }
-};
-
-Color.recalculateHSV = function (color) {
-  var result = ColorMath.rgb_to_hsv(color.r, color.g, color.b);
-  Common.extend(color.__state, {
-    s: result.s,
-    v: result.v
-  });
-
-  if (!Common.isNaN(result.h)) {
-    color.__state.h = result.h;
-  } else if (Common.isUndefined(color.__state.h)) {
-    color.__state.h = 0;
-  }
-};
-
-Color.COMPONENTS = ['r', 'g', 'b', 'h', 's', 'v', 'hex', 'a'];
-defineRGBComponent(Color.prototype, 'r', 2);
-defineRGBComponent(Color.prototype, 'g', 1);
-defineRGBComponent(Color.prototype, 'b', 0);
-defineHSVComponent(Color.prototype, 'h');
-defineHSVComponent(Color.prototype, 's');
-defineHSVComponent(Color.prototype, 'v');
-Object.defineProperty(Color.prototype, 'a', {
-  get: function get$$1() {
-    return this.__state.a;
-  },
-  set: function set$$1(v) {
-    this.__state.a = v;
-  }
-});
-Object.defineProperty(Color.prototype, 'hex', {
-  get: function get$$1() {
-    if (!this.__state.space !== 'HEX') {
-      this.__state.hex = ColorMath.rgb_to_hex(this.r, this.g, this.b);
-    }
-
-    return this.__state.hex;
-  },
-  set: function set$$1(v) {
-    this.__state.space = 'HEX';
-    this.__state.hex = v;
-  }
-});
-
-var Controller = function () {
-  function Controller(object, property) {
-    classCallCheck(this, Controller);
-    this.initialValue = object[property];
-    this.domElement = document.createElement('div');
-    this.object = object;
-    this.property = property;
-    this.__onChange = undefined;
-    this.__onFinishChange = undefined;
-  }
-
-  createClass(Controller, [{
-    key: 'onChange',
-    value: function onChange(fnc) {
-      this.__onChange = fnc;
-      return this;
-    }
-  }, {
-    key: 'onFinishChange',
-    value: function onFinishChange(fnc) {
-      this.__onFinishChange = fnc;
-      return this;
-    }
-  }, {
-    key: 'setValue',
-    value: function setValue(newValue) {
-      this.object[this.property] = newValue;
-
-      if (this.__onChange) {
-        this.__onChange.call(this, newValue);
-      }
-
-      this.updateDisplay();
-      return this;
-    }
-  }, {
-    key: 'getValue',
-    value: function getValue() {
-      return this.object[this.property];
-    }
-  }, {
-    key: 'updateDisplay',
-    value: function updateDisplay() {
-      return this;
-    }
-  }, {
-    key: 'isModified',
-    value: function isModified() {
-      return this.initialValue !== this.getValue();
-    }
-  }]);
-  return Controller;
-}();
-
-var EVENT_MAP = {
-  HTMLEvents: ['change'],
-  MouseEvents: ['click', 'mousemove', 'mousedown', 'mouseup', 'mouseover'],
-  KeyboardEvents: ['keydown']
-};
-var EVENT_MAP_INV = {};
-Common.each(EVENT_MAP, function (v, k) {
-  Common.each(v, function (e) {
-    EVENT_MAP_INV[e] = k;
-  });
-});
-var CSS_VALUE_PIXELS = /(\d+(\.\d+)?)px/;
-
-function cssValueToPixels(val) {
-  if (val === '0' || Common.isUndefined(val)) {
-    return 0;
-  }
-
-  var match = val.match(CSS_VALUE_PIXELS);
-
-  if (!Common.isNull(match)) {
-    return parseFloat(match[1]);
-  }
-
-  return 0;
-}
-
-var dom = {
-  makeSelectable: function makeSelectable(elem, selectable) {
-    if (elem === undefined || elem.style === undefined) return;
-    elem.onselectstart = selectable ? function () {
-      return false;
-    } : function () {};
-    elem.style.MozUserSelect = selectable ? 'auto' : 'none';
-    elem.style.KhtmlUserSelect = selectable ? 'auto' : 'none';
-    elem.unselectable = selectable ? 'on' : 'off';
-  },
-  makeFullscreen: function makeFullscreen(elem, hor, vert) {
-    var vertical = vert;
-    var horizontal = hor;
-
-    if (Common.isUndefined(horizontal)) {
-      horizontal = true;
-    }
-
-    if (Common.isUndefined(vertical)) {
-      vertical = true;
-    }
-
-    elem.style.position = 'absolute';
-
-    if (horizontal) {
-      elem.style.left = 0;
-      elem.style.right = 0;
-    }
-
-    if (vertical) {
-      elem.style.top = 0;
-      elem.style.bottom = 0;
-    }
-  },
-  fakeEvent: function fakeEvent(elem, eventType, pars, aux) {
-    var params = pars || {};
-    var className = EVENT_MAP_INV[eventType];
-
-    if (!className) {
-      throw new Error('Event type ' + eventType + ' not supported.');
-    }
-
-    var evt = document.createEvent(className);
-
-    switch (className) {
-      case 'MouseEvents':
-        {
-          var clientX = params.x || params.clientX || 0;
-          var clientY = params.y || params.clientY || 0;
-          evt.initMouseEvent(eventType, params.bubbles || false, params.cancelable || true, window, params.clickCount || 1, 0, 0, clientX, clientY, false, false, false, false, 0, null);
-          break;
-        }
-
-      case 'KeyboardEvents':
-        {
-          var init = evt.initKeyboardEvent || evt.initKeyEvent;
-          Common.defaults(params, {
-            cancelable: true,
-            ctrlKey: false,
-            altKey: false,
-            shiftKey: false,
-            metaKey: false,
-            keyCode: undefined,
-            charCode: undefined
-          });
-          init(eventType, params.bubbles || false, params.cancelable, window, params.ctrlKey, params.altKey, params.shiftKey, params.metaKey, params.keyCode, params.charCode);
-          break;
-        }
-
-      default:
-        {
-          evt.initEvent(eventType, params.bubbles || false, params.cancelable || true);
-          break;
-        }
-    }
-
-    Common.defaults(evt, aux);
-    elem.dispatchEvent(evt);
-  },
-  bind: function bind(elem, event, func, newBool) {
-    var bool = newBool || false;
-
-    if (elem.addEventListener) {
-      elem.addEventListener(event, func, bool);
-    } else if (elem.attachEvent) {
-      elem.attachEvent('on' + event, func);
-    }
-
-    return dom;
-  },
-  unbind: function unbind(elem, event, func, newBool) {
-    var bool = newBool || false;
-
-    if (elem.removeEventListener) {
-      elem.removeEventListener(event, func, bool);
-    } else if (elem.detachEvent) {
-      elem.detachEvent('on' + event, func);
-    }
-
-    return dom;
-  },
-  addClass: function addClass(elem, className) {
-    if (elem.className === undefined) {
-      elem.className = className;
-    } else if (elem.className !== className) {
-      var classes = elem.className.split(/ +/);
-
-      if (classes.indexOf(className) === -1) {
-        classes.push(className);
-        elem.className = classes.join(' ').replace(/^\s+/, '').replace(/\s+$/, '');
-      }
-    }
-
-    return dom;
-  },
-  removeClass: function removeClass(elem, className) {
-    if (className) {
-      if (elem.className === className) {
-        elem.removeAttribute('class');
-      } else {
-        var classes = elem.className.split(/ +/);
-        var index = classes.indexOf(className);
-
-        if (index !== -1) {
-          classes.splice(index, 1);
-          elem.className = classes.join(' ');
-        }
-      }
-    } else {
-      elem.className = undefined;
-    }
-
-    return dom;
-  },
-  hasClass: function hasClass(elem, className) {
-    return new RegExp('(?:^|\\s+)' + className + '(?:\\s+|$)').test(elem.className) || false;
-  },
-  getWidth: function getWidth(elem) {
-    var style = getComputedStyle(elem);
-    return cssValueToPixels(style['border-left-width']) + cssValueToPixels(style['border-right-width']) + cssValueToPixels(style['padding-left']) + cssValueToPixels(style['padding-right']) + cssValueToPixels(style.width);
-  },
-  getHeight: function getHeight(elem) {
-    var style = getComputedStyle(elem);
-    return cssValueToPixels(style['border-top-width']) + cssValueToPixels(style['border-bottom-width']) + cssValueToPixels(style['padding-top']) + cssValueToPixels(style['padding-bottom']) + cssValueToPixels(style.height);
-  },
-  getOffset: function getOffset(el) {
-    var elem = el;
-    var offset = {
-      left: 0,
-      top: 0
-    };
-
-    if (elem.offsetParent) {
-      do {
-        offset.left += elem.offsetLeft;
-        offset.top += elem.offsetTop;
-        elem = elem.offsetParent;
-      } while (elem);
-    }
-
-    return offset;
-  },
-  isActive: function isActive(elem) {
-    return elem === document.activeElement && (elem.type || elem.href);
-  }
-};
-
-var BooleanController = function (_Controller) {
-  inherits(BooleanController, _Controller);
-
-  function BooleanController(object, property) {
-    classCallCheck(this, BooleanController);
-
-    var _this2 = possibleConstructorReturn(this, (BooleanController.__proto__ || Object.getPrototypeOf(BooleanController)).call(this, object, property));
-
-    var _this = _this2;
-    _this2.__prev = _this2.getValue();
-    _this2.__checkbox = document.createElement('input');
-
-    _this2.__checkbox.setAttribute('type', 'checkbox');
-
-    function onChange() {
-      _this.setValue(!_this.__prev);
-    }
-
-    dom.bind(_this2.__checkbox, 'change', onChange, false);
-
-    _this2.domElement.appendChild(_this2.__checkbox);
-
-    _this2.updateDisplay();
-
-    return _this2;
-  }
-
-  createClass(BooleanController, [{
-    key: 'setValue',
-    value: function setValue(v) {
-      var toReturn = get(BooleanController.prototype.__proto__ || Object.getPrototypeOf(BooleanController.prototype), 'setValue', this).call(this, v);
-
-      if (this.__onFinishChange) {
-        this.__onFinishChange.call(this, this.getValue());
-      }
-
-      this.__prev = this.getValue();
-      return toReturn;
-    }
-  }, {
-    key: 'updateDisplay',
-    value: function updateDisplay() {
-      if (this.getValue() === true) {
-        this.__checkbox.setAttribute('checked', 'checked');
-
-        this.__checkbox.checked = true;
-        this.__prev = true;
-      } else {
-        this.__checkbox.checked = false;
-        this.__prev = false;
-      }
-
-      return get(BooleanController.prototype.__proto__ || Object.getPrototypeOf(BooleanController.prototype), 'updateDisplay', this).call(this);
-    }
-  }]);
-  return BooleanController;
-}(Controller);
-
-var OptionController = function (_Controller) {
-  inherits(OptionController, _Controller);
-
-  function OptionController(object, property, opts) {
-    classCallCheck(this, OptionController);
-
-    var _this2 = possibleConstructorReturn(this, (OptionController.__proto__ || Object.getPrototypeOf(OptionController)).call(this, object, property));
-
-    var options = opts;
-    var _this = _this2;
-    _this2.__select = document.createElement('select');
-
-    if (Common.isArray(options)) {
-      var map = {};
-      Common.each(options, function (element) {
-        map[element] = element;
-      });
-      options = map;
-    }
-
-    Common.each(options, function (value, key) {
-      var opt = document.createElement('option');
-      opt.innerHTML = key;
-      opt.setAttribute('value', value);
-
-      _this.__select.appendChild(opt);
-    });
-
-    _this2.updateDisplay();
-
-    dom.bind(_this2.__select, 'change', function () {
-      var desiredValue = this.options[this.selectedIndex].value;
-
-      _this.setValue(desiredValue);
-    });
-
-    _this2.domElement.appendChild(_this2.__select);
-
-    return _this2;
-  }
-
-  createClass(OptionController, [{
-    key: 'setValue',
-    value: function setValue(v) {
-      var toReturn = get(OptionController.prototype.__proto__ || Object.getPrototypeOf(OptionController.prototype), 'setValue', this).call(this, v);
-
-      if (this.__onFinishChange) {
-        this.__onFinishChange.call(this, this.getValue());
-      }
-
-      return toReturn;
-    }
-  }, {
-    key: 'updateDisplay',
-    value: function updateDisplay() {
-      if (dom.isActive(this.__select)) return this;
-      this.__select.value = this.getValue();
-      return get(OptionController.prototype.__proto__ || Object.getPrototypeOf(OptionController.prototype), 'updateDisplay', this).call(this);
-    }
-  }]);
-  return OptionController;
-}(Controller);
-
-var StringController = function (_Controller) {
-  inherits(StringController, _Controller);
-
-  function StringController(object, property) {
-    classCallCheck(this, StringController);
-
-    var _this2 = possibleConstructorReturn(this, (StringController.__proto__ || Object.getPrototypeOf(StringController)).call(this, object, property));
-
-    var _this = _this2;
-
-    function onChange() {
-      _this.setValue(_this.__input.value);
-    }
-
-    function onBlur() {
-      if (_this.__onFinishChange) {
-        _this.__onFinishChange.call(_this, _this.getValue());
-      }
-    }
-
-    _this2.__input = document.createElement('input');
-
-    _this2.__input.setAttribute('type', 'text');
-
-    dom.bind(_this2.__input, 'keyup', onChange);
-    dom.bind(_this2.__input, 'change', onChange);
-    dom.bind(_this2.__input, 'blur', onBlur);
-    dom.bind(_this2.__input, 'keydown', function (e) {
-      if (e.keyCode === 13) {
-        this.blur();
-      }
-    });
-
-    _this2.updateDisplay();
-
-    _this2.domElement.appendChild(_this2.__input);
-
-    return _this2;
-  }
-
-  createClass(StringController, [{
-    key: 'updateDisplay',
-    value: function updateDisplay() {
-      if (!dom.isActive(this.__input)) {
-        this.__input.value = this.getValue();
-      }
-
-      return get(StringController.prototype.__proto__ || Object.getPrototypeOf(StringController.prototype), 'updateDisplay', this).call(this);
-    }
-  }]);
-  return StringController;
-}(Controller);
-
-function numDecimals(x) {
-  var _x = x.toString();
-
-  if (_x.indexOf('.') > -1) {
-    return _x.length - _x.indexOf('.') - 1;
-  }
-
-  return 0;
-}
-
-var NumberController = function (_Controller) {
-  inherits(NumberController, _Controller);
-
-  function NumberController(object, property, params) {
-    classCallCheck(this, NumberController);
-
-    var _this = possibleConstructorReturn(this, (NumberController.__proto__ || Object.getPrototypeOf(NumberController)).call(this, object, property));
-
-    var _params = params || {};
-
-    _this.__min = _params.min;
-    _this.__max = _params.max;
-    _this.__step = _params.step;
-
-    if (Common.isUndefined(_this.__step)) {
-      if (_this.initialValue === 0) {
-        _this.__impliedStep = 1;
-      } else {
-        _this.__impliedStep = Math.pow(10, Math.floor(Math.log(Math.abs(_this.initialValue)) / Math.LN10)) / 10;
-      }
-    } else {
-      _this.__impliedStep = _this.__step;
-    }
-
-    _this.__precision = numDecimals(_this.__impliedStep);
-    return _this;
-  }
-
-  createClass(NumberController, [{
-    key: 'setValue',
-    value: function setValue(v) {
-      var _v = v;
-
-      if (this.__min !== undefined && _v < this.__min) {
-        _v = this.__min;
-      } else if (this.__max !== undefined && _v > this.__max) {
-        _v = this.__max;
-      }
-
-      if (this.__step !== undefined && _v % this.__step !== 0) {
-        _v = Math.round(_v / this.__step) * this.__step;
-      }
-
-      return get(NumberController.prototype.__proto__ || Object.getPrototypeOf(NumberController.prototype), 'setValue', this).call(this, _v);
-    }
-  }, {
-    key: 'min',
-    value: function min(minValue) {
-      this.__min = minValue;
-      return this;
-    }
-  }, {
-    key: 'max',
-    value: function max(maxValue) {
-      this.__max = maxValue;
-      return this;
-    }
-  }, {
-    key: 'step',
-    value: function step(stepValue) {
-      this.__step = stepValue;
-      this.__impliedStep = stepValue;
-      this.__precision = numDecimals(stepValue);
-      return this;
-    }
-  }]);
-  return NumberController;
-}(Controller);
-
-function roundToDecimal(value, decimals) {
-  var tenTo = Math.pow(10, decimals);
-  return Math.round(value * tenTo) / tenTo;
-}
-
-var NumberControllerBox = function (_NumberController) {
-  inherits(NumberControllerBox, _NumberController);
-
-  function NumberControllerBox(object, property, params) {
-    classCallCheck(this, NumberControllerBox);
-
-    var _this2 = possibleConstructorReturn(this, (NumberControllerBox.__proto__ || Object.getPrototypeOf(NumberControllerBox)).call(this, object, property, params));
-
-    _this2.__truncationSuspended = false;
-    var _this = _this2;
-    var prevY = void 0;
-
-    function onChange() {
-      var attempted = parseFloat(_this.__input.value);
-
-      if (!Common.isNaN(attempted)) {
-        _this.setValue(attempted);
-      }
-    }
-
-    function onFinish() {
-      if (_this.__onFinishChange) {
-        _this.__onFinishChange.call(_this, _this.getValue());
-      }
-    }
-
-    function onBlur() {
-      onFinish();
-    }
-
-    function onMouseDrag(e) {
-      var diff = prevY - e.clientY;
-
-      _this.setValue(_this.getValue() + diff * _this.__impliedStep);
-
-      prevY = e.clientY;
-    }
-
-    function onMouseUp() {
-      dom.unbind(window, 'mousemove', onMouseDrag);
-      dom.unbind(window, 'mouseup', onMouseUp);
-      onFinish();
-    }
-
-    function onMouseDown(e) {
-      dom.bind(window, 'mousemove', onMouseDrag);
-      dom.bind(window, 'mouseup', onMouseUp);
-      prevY = e.clientY;
-    }
-
-    _this2.__input = document.createElement('input');
-
-    _this2.__input.setAttribute('type', 'text');
-
-    dom.bind(_this2.__input, 'change', onChange);
-    dom.bind(_this2.__input, 'blur', onBlur);
-    dom.bind(_this2.__input, 'mousedown', onMouseDown);
-    dom.bind(_this2.__input, 'keydown', function (e) {
-      if (e.keyCode === 13) {
-        _this.__truncationSuspended = true;
-        this.blur();
-        _this.__truncationSuspended = false;
-        onFinish();
-      }
-    });
-
-    _this2.updateDisplay();
-
-    _this2.domElement.appendChild(_this2.__input);
-
-    return _this2;
-  }
-
-  createClass(NumberControllerBox, [{
-    key: 'updateDisplay',
-    value: function updateDisplay() {
-      this.__input.value = this.__truncationSuspended ? this.getValue() : roundToDecimal(this.getValue(), this.__precision);
-      return get(NumberControllerBox.prototype.__proto__ || Object.getPrototypeOf(NumberControllerBox.prototype), 'updateDisplay', this).call(this);
-    }
-  }]);
-  return NumberControllerBox;
-}(NumberController);
-
-function map(v, i1, i2, o1, o2) {
-  return o1 + (o2 - o1) * ((v - i1) / (i2 - i1));
-}
-
-var NumberControllerSlider = function (_NumberController) {
-  inherits(NumberControllerSlider, _NumberController);
-
-  function NumberControllerSlider(object, property, min, max, step) {
-    classCallCheck(this, NumberControllerSlider);
-
-    var _this2 = possibleConstructorReturn(this, (NumberControllerSlider.__proto__ || Object.getPrototypeOf(NumberControllerSlider)).call(this, object, property, {
-      min: min,
-      max: max,
-      step: step
-    }));
-
-    var _this = _this2;
-    _this2.__background = document.createElement('div');
-    _this2.__foreground = document.createElement('div');
-    dom.bind(_this2.__background, 'mousedown', onMouseDown);
-    dom.bind(_this2.__background, 'touchstart', onTouchStart);
-    dom.addClass(_this2.__background, 'slider');
-    dom.addClass(_this2.__foreground, 'slider-fg');
-
-    function onMouseDown(e) {
-      document.activeElement.blur();
-      dom.bind(window, 'mousemove', onMouseDrag);
-      dom.bind(window, 'mouseup', onMouseUp);
-      onMouseDrag(e);
-    }
-
-    function onMouseDrag(e) {
-      e.preventDefault();
-
-      var bgRect = _this.__background.getBoundingClientRect();
-
-      _this.setValue(map(e.clientX, bgRect.left, bgRect.right, _this.__min, _this.__max));
-
-      return false;
-    }
-
-    function onMouseUp() {
-      dom.unbind(window, 'mousemove', onMouseDrag);
-      dom.unbind(window, 'mouseup', onMouseUp);
-
-      if (_this.__onFinishChange) {
-        _this.__onFinishChange.call(_this, _this.getValue());
-      }
-    }
-
-    function onTouchStart(e) {
-      if (e.touches.length !== 1) {
-        return;
-      }
-
-      dom.bind(window, 'touchmove', onTouchMove);
-      dom.bind(window, 'touchend', onTouchEnd);
-      onTouchMove(e);
-    }
-
-    function onTouchMove(e) {
-      var clientX = e.touches[0].clientX;
-
-      var bgRect = _this.__background.getBoundingClientRect();
-
-      _this.setValue(map(clientX, bgRect.left, bgRect.right, _this.__min, _this.__max));
-    }
-
-    function onTouchEnd() {
-      dom.unbind(window, 'touchmove', onTouchMove);
-      dom.unbind(window, 'touchend', onTouchEnd);
-
-      if (_this.__onFinishChange) {
-        _this.__onFinishChange.call(_this, _this.getValue());
-      }
-    }
-
-    _this2.updateDisplay();
-
-    _this2.__background.appendChild(_this2.__foreground);
-
-    _this2.domElement.appendChild(_this2.__background);
-
-    return _this2;
-  }
-
-  createClass(NumberControllerSlider, [{
-    key: 'updateDisplay',
-    value: function updateDisplay() {
-      var pct = (this.getValue() - this.__min) / (this.__max - this.__min);
-
-      this.__foreground.style.width = pct * 100 + '%';
-      return get(NumberControllerSlider.prototype.__proto__ || Object.getPrototypeOf(NumberControllerSlider.prototype), 'updateDisplay', this).call(this);
-    }
-  }]);
-  return NumberControllerSlider;
-}(NumberController);
-
-var FunctionController = function (_Controller) {
-  inherits(FunctionController, _Controller);
-
-  function FunctionController(object, property, text) {
-    classCallCheck(this, FunctionController);
-
-    var _this2 = possibleConstructorReturn(this, (FunctionController.__proto__ || Object.getPrototypeOf(FunctionController)).call(this, object, property));
-
-    var _this = _this2;
-    _this2.__button = document.createElement('div');
-    _this2.__button.innerHTML = text === undefined ? 'Fire' : text;
-    dom.bind(_this2.__button, 'click', function (e) {
-      e.preventDefault();
-
-      _this.fire();
-
-      return false;
-    });
-    dom.addClass(_this2.__button, 'button');
-
-    _this2.domElement.appendChild(_this2.__button);
-
-    return _this2;
-  }
-
-  createClass(FunctionController, [{
-    key: 'fire',
-    value: function fire() {
-      if (this.__onChange) {
-        this.__onChange.call(this);
-      }
-
-      this.getValue().call(this.object);
-
-      if (this.__onFinishChange) {
-        this.__onFinishChange.call(this, this.getValue());
-      }
-    }
-  }]);
-  return FunctionController;
-}(Controller);
-
-var ColorController = function (_Controller) {
-  inherits(ColorController, _Controller);
-
-  function ColorController(object, property) {
-    classCallCheck(this, ColorController);
-
-    var _this2 = possibleConstructorReturn(this, (ColorController.__proto__ || Object.getPrototypeOf(ColorController)).call(this, object, property));
-
-    _this2.__color = new Color(_this2.getValue());
-    _this2.__temp = new Color(0);
-    var _this = _this2;
-    _this2.domElement = document.createElement('div');
-    dom.makeSelectable(_this2.domElement, false);
-    _this2.__selector = document.createElement('div');
-    _this2.__selector.className = 'selector';
-    _this2.__saturation_field = document.createElement('div');
-    _this2.__saturation_field.className = 'saturation-field';
-    _this2.__field_knob = document.createElement('div');
-    _this2.__field_knob.className = 'field-knob';
-    _this2.__field_knob_border = '2px solid ';
-    _this2.__hue_knob = document.createElement('div');
-    _this2.__hue_knob.className = 'hue-knob';
-    _this2.__hue_field = document.createElement('div');
-    _this2.__hue_field.className = 'hue-field';
-    _this2.__input = document.createElement('input');
-    _this2.__input.type = 'text';
-    _this2.__input_textShadow = '0 1px 1px ';
-    dom.bind(_this2.__input, 'keydown', function (e) {
-      if (e.keyCode === 13) {
-        onBlur.call(this);
-      }
-    });
-    dom.bind(_this2.__input, 'blur', onBlur);
-    dom.bind(_this2.__selector, 'mousedown', function () {
-      dom.addClass(this, 'drag').bind(window, 'mouseup', function () {
-        dom.removeClass(_this.__selector, 'drag');
-      });
-    });
-    dom.bind(_this2.__selector, 'touchstart', function () {
-      dom.addClass(this, 'drag').bind(window, 'touchend', function () {
-        dom.removeClass(_this.__selector, 'drag');
-      });
-    });
-    var valueField = document.createElement('div');
-    Common.extend(_this2.__selector.style, {
-      width: '122px',
-      height: '102px',
-      padding: '3px',
-      backgroundColor: '#222',
-      boxShadow: '0px 1px 3px rgba(0,0,0,0.3)'
-    });
-    Common.extend(_this2.__field_knob.style, {
-      position: 'absolute',
-      width: '12px',
-      height: '12px',
-      border: _this2.__field_knob_border + (_this2.__color.v < 0.5 ? '#fff' : '#000'),
-      boxShadow: '0px 1px 3px rgba(0,0,0,0.5)',
-      borderRadius: '12px',
-      zIndex: 1
-    });
-    Common.extend(_this2.__hue_knob.style, {
-      position: 'absolute',
-      width: '15px',
-      height: '2px',
-      borderRight: '4px solid #fff',
-      zIndex: 1
-    });
-    Common.extend(_this2.__saturation_field.style, {
-      width: '100px',
-      height: '100px',
-      border: '1px solid #555',
-      marginRight: '3px',
-      display: 'inline-block',
-      cursor: 'pointer'
-    });
-    Common.extend(valueField.style, {
-      width: '100%',
-      height: '100%',
-      background: 'none'
-    });
-    linearGradient(valueField, 'top', 'rgba(0,0,0,0)', '#000');
-    Common.extend(_this2.__hue_field.style, {
-      width: '15px',
-      height: '100px',
-      border: '1px solid #555',
-      cursor: 'ns-resize',
-      position: 'absolute',
-      top: '3px',
-      right: '3px'
-    });
-    hueGradient(_this2.__hue_field);
-    Common.extend(_this2.__input.style, {
-      outline: 'none',
-      textAlign: 'center',
-      color: '#fff',
-      border: 0,
-      fontWeight: 'bold',
-      textShadow: _this2.__input_textShadow + 'rgba(0,0,0,0.7)'
-    });
-    dom.bind(_this2.__saturation_field, 'mousedown', fieldDown);
-    dom.bind(_this2.__saturation_field, 'touchstart', fieldDown);
-    dom.bind(_this2.__field_knob, 'mousedown', fieldDown);
-    dom.bind(_this2.__field_knob, 'touchstart', fieldDown);
-    dom.bind(_this2.__hue_field, 'mousedown', fieldDownH);
-    dom.bind(_this2.__hue_field, 'touchstart', fieldDownH);
-
-    function fieldDown(e) {
-      setSV(e);
-      dom.bind(window, 'mousemove', setSV);
-      dom.bind(window, 'touchmove', setSV);
-      dom.bind(window, 'mouseup', fieldUpSV);
-      dom.bind(window, 'touchend', fieldUpSV);
-    }
-
-    function fieldDownH(e) {
-      setH(e);
-      dom.bind(window, 'mousemove', setH);
-      dom.bind(window, 'touchmove', setH);
-      dom.bind(window, 'mouseup', fieldUpH);
-      dom.bind(window, 'touchend', fieldUpH);
-    }
-
-    function fieldUpSV() {
-      dom.unbind(window, 'mousemove', setSV);
-      dom.unbind(window, 'touchmove', setSV);
-      dom.unbind(window, 'mouseup', fieldUpSV);
-      dom.unbind(window, 'touchend', fieldUpSV);
-      onFinish();
-    }
-
-    function fieldUpH() {
-      dom.unbind(window, 'mousemove', setH);
-      dom.unbind(window, 'touchmove', setH);
-      dom.unbind(window, 'mouseup', fieldUpH);
-      dom.unbind(window, 'touchend', fieldUpH);
-      onFinish();
-    }
-
-    function onBlur() {
-      var i = interpret(this.value);
-
-      if (i !== false) {
-        _this.__color.__state = i;
-
-        _this.setValue(_this.__color.toOriginal());
-      } else {
-        this.value = _this.__color.toString();
-      }
-    }
-
-    function onFinish() {
-      if (_this.__onFinishChange) {
-        _this.__onFinishChange.call(_this, _this.__color.toOriginal());
-      }
-    }
-
-    _this2.__saturation_field.appendChild(valueField);
-
-    _this2.__selector.appendChild(_this2.__field_knob);
-
-    _this2.__selector.appendChild(_this2.__saturation_field);
-
-    _this2.__selector.appendChild(_this2.__hue_field);
-
-    _this2.__hue_field.appendChild(_this2.__hue_knob);
-
-    _this2.domElement.appendChild(_this2.__input);
-
-    _this2.domElement.appendChild(_this2.__selector);
-
-    _this2.updateDisplay();
-
-    function setSV(e) {
-      if (e.type.indexOf('touch') === -1) {
-        e.preventDefault();
-      }
-
-      var fieldRect = _this.__saturation_field.getBoundingClientRect();
-
-      var _ref = e.touches && e.touches[0] || e,
-          clientX = _ref.clientX,
-          clientY = _ref.clientY;
-
-      var s = (clientX - fieldRect.left) / (fieldRect.right - fieldRect.left);
-      var v = 1 - (clientY - fieldRect.top) / (fieldRect.bottom - fieldRect.top);
-
-      if (v > 1) {
-        v = 1;
-      } else if (v < 0) {
-        v = 0;
-      }
-
-      if (s > 1) {
-        s = 1;
-      } else if (s < 0) {
-        s = 0;
-      }
-
-      _this.__color.v = v;
-      _this.__color.s = s;
-
-      _this.setValue(_this.__color.toOriginal());
-
-      return false;
-    }
-
-    function setH(e) {
-      if (e.type.indexOf('touch') === -1) {
-        e.preventDefault();
-      }
-
-      var fieldRect = _this.__hue_field.getBoundingClientRect();
-
-      var _ref2 = e.touches && e.touches[0] || e,
-          clientY = _ref2.clientY;
-
-      var h = 1 - (clientY - fieldRect.top) / (fieldRect.bottom - fieldRect.top);
-
-      if (h > 1) {
-        h = 1;
-      } else if (h < 0) {
-        h = 0;
-      }
-
-      _this.__color.h = h * 360;
-
-      _this.setValue(_this.__color.toOriginal());
-
-      return false;
-    }
-
-    return _this2;
-  }
-
-  createClass(ColorController, [{
-    key: 'updateDisplay',
-    value: function updateDisplay() {
-      var i = interpret(this.getValue());
-
-      if (i !== false) {
-        var mismatch = false;
-        Common.each(Color.COMPONENTS, function (component) {
-          if (!Common.isUndefined(i[component]) && !Common.isUndefined(this.__color.__state[component]) && i[component] !== this.__color.__state[component]) {
-            mismatch = true;
-            return {};
-          }
-        }, this);
-
-        if (mismatch) {
-          Common.extend(this.__color.__state, i);
-        }
-      }
-
-      Common.extend(this.__temp.__state, this.__color.__state);
-      this.__temp.a = 1;
-      var flip = this.__color.v < 0.5 || this.__color.s > 0.5 ? 255 : 0;
-
-      var _flip = 255 - flip;
-
-      Common.extend(this.__field_knob.style, {
-        marginLeft: 100 * this.__color.s - 7 + 'px',
-        marginTop: 100 * (1 - this.__color.v) - 7 + 'px',
-        backgroundColor: this.__temp.toHexString(),
-        border: this.__field_knob_border + 'rgb(' + flip + ',' + flip + ',' + flip + ')'
-      });
-      this.__hue_knob.style.marginTop = (1 - this.__color.h / 360) * 100 + 'px';
-      this.__temp.s = 1;
-      this.__temp.v = 1;
-      linearGradient(this.__saturation_field, 'left', '#fff', this.__temp.toHexString());
-      this.__input.value = this.__color.toString();
-      Common.extend(this.__input.style, {
-        backgroundColor: this.__color.toHexString(),
-        color: 'rgb(' + flip + ',' + flip + ',' + flip + ')',
-        textShadow: this.__input_textShadow + 'rgba(' + _flip + ',' + _flip + ',' + _flip + ',.7)'
-      });
-    }
-  }]);
-  return ColorController;
-}(Controller);
-
-var vendors = ['-moz-', '-o-', '-webkit-', '-ms-', ''];
-
-function linearGradient(elem, x, a, b) {
-  elem.style.background = '';
-  Common.each(vendors, function (vendor) {
-    elem.style.cssText += 'background: ' + vendor + 'linear-gradient(' + x + ', ' + a + ' 0%, ' + b + ' 100%); ';
-  });
-}
-
-function hueGradient(elem) {
-  elem.style.background = '';
-  elem.style.cssText += 'background: -moz-linear-gradient(top,  #ff0000 0%, #ff00ff 17%, #0000ff 34%, #00ffff 50%, #00ff00 67%, #ffff00 84%, #ff0000 100%);';
-  elem.style.cssText += 'background: -webkit-linear-gradient(top,  #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);';
-  elem.style.cssText += 'background: -o-linear-gradient(top,  #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);';
-  elem.style.cssText += 'background: -ms-linear-gradient(top,  #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);';
-  elem.style.cssText += 'background: linear-gradient(top,  #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);';
-}
-
-var css = {
-  load: function load(url, indoc) {
-    var doc = indoc || document;
-    var link = doc.createElement('link');
-    link.type = 'text/css';
-    link.rel = 'stylesheet';
-    link.href = url;
-    doc.getElementsByTagName('head')[0].appendChild(link);
-  },
-  inject: function inject(cssContent, indoc) {
-    var doc = indoc || document;
-    var injected = document.createElement('style');
-    injected.type = 'text/css';
-    injected.innerHTML = cssContent;
-    var head = doc.getElementsByTagName('head')[0];
-
-    try {
-      head.appendChild(injected);
-    } catch (e) {}
-  }
-};
-var saveDialogContents = "<div id=\"dg-save\" class=\"dg dialogue\">\n\n  Here's the new load parameter for your <code>GUI</code>'s constructor:\n\n  <textarea id=\"dg-new-constructor\"></textarea>\n\n  <div id=\"dg-save-locally\">\n\n    <input id=\"dg-local-storage\" type=\"checkbox\"/> Automatically save\n    values to <code>localStorage</code> on exit.\n\n    <div id=\"dg-local-explain\">The values saved to <code>localStorage</code> will\n      override those passed to <code>dat.GUI</code>'s constructor. This makes it\n      easier to work incrementally, but <code>localStorage</code> is fragile,\n      and your friends may not see the same values you do.\n\n    </div>\n\n  </div>\n\n</div>";
-
-var ControllerFactory = function ControllerFactory(object, property) {
-  var initialValue = object[property];
-
-  if (Common.isArray(arguments[2]) || Common.isObject(arguments[2])) {
-    return new OptionController(object, property, arguments[2]);
-  }
-
-  if (Common.isNumber(initialValue)) {
-    if (Common.isNumber(arguments[2]) && Common.isNumber(arguments[3])) {
-      if (Common.isNumber(arguments[4])) {
-        return new NumberControllerSlider(object, property, arguments[2], arguments[3], arguments[4]);
-      }
-
-      return new NumberControllerSlider(object, property, arguments[2], arguments[3]);
-    }
-
-    if (Common.isNumber(arguments[4])) {
-      return new NumberControllerBox(object, property, {
-        min: arguments[2],
-        max: arguments[3],
-        step: arguments[4]
-      });
-    }
-
-    return new NumberControllerBox(object, property, {
-      min: arguments[2],
-      max: arguments[3]
-    });
-  }
-
-  if (Common.isString(initialValue)) {
-    return new StringController(object, property);
-  }
-
-  if (Common.isFunction(initialValue)) {
-    return new FunctionController(object, property, '');
-  }
-
-  if (Common.isBoolean(initialValue)) {
-    return new BooleanController(object, property);
-  }
-
-  return null;
-};
-
-function requestAnimationFrame(callback) {
-  setTimeout(callback, 1000 / 60);
-}
-
-var requestAnimationFrame$1 = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || requestAnimationFrame;
-
-var CenteredDiv = function () {
-  function CenteredDiv() {
-    classCallCheck(this, CenteredDiv);
-    this.backgroundElement = document.createElement('div');
-    Common.extend(this.backgroundElement.style, {
-      backgroundColor: 'rgba(0,0,0,0.8)',
-      top: 0,
-      left: 0,
-      display: 'none',
-      zIndex: '1000',
-      opacity: 0,
-      WebkitTransition: 'opacity 0.2s linear',
-      transition: 'opacity 0.2s linear'
-    });
-    dom.makeFullscreen(this.backgroundElement);
-    this.backgroundElement.style.position = 'fixed';
-    this.domElement = document.createElement('div');
-    Common.extend(this.domElement.style, {
-      position: 'fixed',
-      display: 'none',
-      zIndex: '1001',
-      opacity: 0,
-      WebkitTransition: '-webkit-transform 0.2s ease-out, opacity 0.2s linear',
-      transition: 'transform 0.2s ease-out, opacity 0.2s linear'
-    });
-    document.body.appendChild(this.backgroundElement);
-    document.body.appendChild(this.domElement);
-
-    var _this = this;
-
-    dom.bind(this.backgroundElement, 'click', function () {
-      _this.hide();
-    });
-  }
-
-  createClass(CenteredDiv, [{
-    key: 'show',
-    value: function show() {
-      var _this = this;
-
-      this.backgroundElement.style.display = 'block';
-      this.domElement.style.display = 'block';
-      this.domElement.style.opacity = 0;
-      this.domElement.style.webkitTransform = 'scale(1.1)';
-      this.layout();
-      Common.defer(function () {
-        _this.backgroundElement.style.opacity = 1;
-        _this.domElement.style.opacity = 1;
-        _this.domElement.style.webkitTransform = 'scale(1)';
-      });
-    }
-  }, {
-    key: 'hide',
-    value: function hide() {
-      var _this = this;
-
-      var hide = function hide() {
-        _this.domElement.style.display = 'none';
-        _this.backgroundElement.style.display = 'none';
-        dom.unbind(_this.domElement, 'webkitTransitionEnd', hide);
-        dom.unbind(_this.domElement, 'transitionend', hide);
-        dom.unbind(_this.domElement, 'oTransitionEnd', hide);
-      };
-
-      dom.bind(this.domElement, 'webkitTransitionEnd', hide);
-      dom.bind(this.domElement, 'transitionend', hide);
-      dom.bind(this.domElement, 'oTransitionEnd', hide);
-      this.backgroundElement.style.opacity = 0;
-      this.domElement.style.opacity = 0;
-      this.domElement.style.webkitTransform = 'scale(1.1)';
-    }
-  }, {
-    key: 'layout',
-    value: function layout() {
-      this.domElement.style.left = window.innerWidth / 2 - dom.getWidth(this.domElement) / 2 + 'px';
-      this.domElement.style.top = window.innerHeight / 2 - dom.getHeight(this.domElement) / 2 + 'px';
-    }
-  }]);
-  return CenteredDiv;
-}();
-
-var styleSheet = ___$insertStyle(".dg ul{list-style:none;margin:0;padding:0;width:100%;clear:both}.dg.ac{position:fixed;top:0;left:0;right:0;height:0;z-index:0}.dg:not(.ac) .main{overflow:hidden}.dg.main{-webkit-transition:opacity .1s linear;-o-transition:opacity .1s linear;-moz-transition:opacity .1s linear;transition:opacity .1s linear}.dg.main.taller-than-window{overflow-y:auto}.dg.main.taller-than-window .close-button{opacity:1;margin-top:-1px;border-top:1px solid #2c2c2c}.dg.main ul.closed .close-button{opacity:1 !important}.dg.main:hover .close-button,.dg.main .close-button.drag{opacity:1}.dg.main .close-button{-webkit-transition:opacity .1s linear;-o-transition:opacity .1s linear;-moz-transition:opacity .1s linear;transition:opacity .1s linear;border:0;line-height:19px;height:20px;cursor:pointer;text-align:center;background-color:#000}.dg.main .close-button.close-top{position:relative}.dg.main .close-button.close-bottom{position:absolute}.dg.main .close-button:hover{background-color:#111}.dg.a{float:right;margin-right:15px;overflow-y:visible}.dg.a.has-save>ul.close-top{margin-top:0}.dg.a.has-save>ul.close-bottom{margin-top:27px}.dg.a.has-save>ul.closed{margin-top:0}.dg.a .save-row{top:0;z-index:1002}.dg.a .save-row.close-top{position:relative}.dg.a .save-row.close-bottom{position:fixed}.dg li{-webkit-transition:height .1s ease-out;-o-transition:height .1s ease-out;-moz-transition:height .1s ease-out;transition:height .1s ease-out;-webkit-transition:overflow .1s linear;-o-transition:overflow .1s linear;-moz-transition:overflow .1s linear;transition:overflow .1s linear}.dg li:not(.folder){cursor:auto;height:27px;line-height:27px;padding:0 4px 0 5px}.dg li.folder{padding:0;border-left:4px solid rgba(0,0,0,0)}.dg li.title{cursor:pointer;margin-left:-4px}.dg .closed li:not(.title),.dg .closed ul li,.dg .closed ul li>*{height:0;overflow:hidden;border:0}.dg .cr{clear:both;padding-left:3px;height:27px;overflow:hidden}.dg .property-name{cursor:default;float:left;clear:left;width:40%;overflow:hidden;text-overflow:ellipsis}.dg .c{float:left;width:60%;position:relative}.dg .c input[type=text]{border:0;margin-top:4px;padding:3px;width:100%;float:right}.dg .has-slider input[type=text]{width:30%;margin-left:0}.dg .slider{float:left;width:66%;margin-left:-5px;margin-right:0;height:19px;margin-top:4px}.dg .slider-fg{height:100%}.dg .c input[type=checkbox]{margin-top:7px}.dg .c select{margin-top:5px}.dg .cr.function,.dg .cr.function .property-name,.dg .cr.function *,.dg .cr.boolean,.dg .cr.boolean *{cursor:pointer}.dg .cr.color{overflow:visible}.dg .selector{display:none;position:absolute;margin-left:-9px;margin-top:23px;z-index:10}.dg .c:hover .selector,.dg .selector.drag{display:block}.dg li.save-row{padding:0}.dg li.save-row .button{display:inline-block;padding:0px 6px}.dg.dialogue{background-color:#222;width:460px;padding:15px;font-size:13px;line-height:15px}#dg-new-constructor{padding:10px;color:#222;font-family:Monaco, monospace;font-size:10px;border:0;resize:none;box-shadow:inset 1px 1px 1px #888;word-wrap:break-word;margin:12px 0;display:block;width:440px;overflow-y:scroll;height:100px;position:relative}#dg-local-explain{display:none;font-size:11px;line-height:17px;border-radius:3px;background-color:#333;padding:8px;margin-top:10px}#dg-local-explain code{font-size:10px}#dat-gui-save-locally{display:none}.dg{color:#eee;font:11px 'Lucida Grande', sans-serif;text-shadow:0 -1px 0 #111}.dg.main::-webkit-scrollbar{width:5px;background:#1a1a1a}.dg.main::-webkit-scrollbar-corner{height:0;display:none}.dg.main::-webkit-scrollbar-thumb{border-radius:5px;background:#676767}.dg li:not(.folder){background:#1a1a1a;border-bottom:1px solid #2c2c2c}.dg li.save-row{line-height:25px;background:#dad5cb;border:0}.dg li.save-row select{margin-left:5px;width:108px}.dg li.save-row .button{margin-left:5px;margin-top:1px;border-radius:2px;font-size:9px;line-height:7px;padding:4px 4px 5px 4px;background:#c5bdad;color:#fff;text-shadow:0 1px 0 #b0a58f;box-shadow:0 -1px 0 #b0a58f;cursor:pointer}.dg li.save-row .button.gears{background:#c5bdad url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAANCAYAAAB/9ZQ7AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAQJJREFUeNpiYKAU/P//PwGIC/ApCABiBSAW+I8AClAcgKxQ4T9hoMAEUrxx2QSGN6+egDX+/vWT4e7N82AMYoPAx/evwWoYoSYbACX2s7KxCxzcsezDh3evFoDEBYTEEqycggWAzA9AuUSQQgeYPa9fPv6/YWm/Acx5IPb7ty/fw+QZblw67vDs8R0YHyQhgObx+yAJkBqmG5dPPDh1aPOGR/eugW0G4vlIoTIfyFcA+QekhhHJhPdQxbiAIguMBTQZrPD7108M6roWYDFQiIAAv6Aow/1bFwXgis+f2LUAynwoIaNcz8XNx3Dl7MEJUDGQpx9gtQ8YCueB+D26OECAAQDadt7e46D42QAAAABJRU5ErkJggg==) 2px 1px no-repeat;height:7px;width:8px}.dg li.save-row .button:hover{background-color:#bab19e;box-shadow:0 -1px 0 #b0a58f}.dg li.folder{border-bottom:0}.dg li.title{padding-left:16px;background:#000 url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlI+hKgFxoCgAOw==) 6px 10px no-repeat;cursor:pointer;border-bottom:1px solid rgba(255,255,255,0.2)}.dg .closed li.title{background-image:url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlGIWqMCbWAEAOw==)}.dg .cr.boolean{border-left:3px solid #806787}.dg .cr.color{border-left:3px solid}.dg .cr.function{border-left:3px solid #e61d5f}.dg .cr.number{border-left:3px solid #2FA1D6}.dg .cr.number input[type=text]{color:#2FA1D6}.dg .cr.string{border-left:3px solid #1ed36f}.dg .cr.string input[type=text]{color:#1ed36f}.dg .cr.function:hover,.dg .cr.boolean:hover{background:#111}.dg .c input[type=text]{background:#303030;outline:none}.dg .c input[type=text]:hover{background:#3c3c3c}.dg .c input[type=text]:focus{background:#494949;color:#fff}.dg .c .slider{background:#303030;cursor:ew-resize}.dg .c .slider-fg{background:#2FA1D6;max-width:100%}.dg .c .slider:hover{background:#3c3c3c}.dg .c .slider:hover .slider-fg{background:#44abda}\n");
-
-css.inject(styleSheet);
-var CSS_NAMESPACE = 'dg';
-var HIDE_KEY_CODE = 72;
-var CLOSE_BUTTON_HEIGHT = 20;
-var DEFAULT_DEFAULT_PRESET_NAME = 'Default';
-
-var SUPPORTS_LOCAL_STORAGE = function () {
-  try {
-    return !!window.localStorage;
-  } catch (e) {
-    return false;
-  }
-}();
-
-var SAVE_DIALOGUE = void 0;
-var autoPlaceVirgin = true;
-var autoPlaceContainer = void 0;
-var hide = false;
-var hideableGuis = [];
-
-var GUI = function GUI(pars) {
-  var _this = this;
-
-  var params = pars || {};
-  this.domElement = document.createElement('div');
-  this.__ul = document.createElement('ul');
-  this.domElement.appendChild(this.__ul);
-  dom.addClass(this.domElement, CSS_NAMESPACE);
-  this.__folders = {};
-  this.__controllers = [];
-  this.__rememberedObjects = [];
-  this.__rememberedObjectIndecesToControllers = [];
-  this.__listening = [];
-  params = Common.defaults(params, {
-    closeOnTop: false,
-    autoPlace: true,
-    width: GUI.DEFAULT_WIDTH
-  });
-  params = Common.defaults(params, {
-    resizable: params.autoPlace,
-    hideable: params.autoPlace
-  });
-
-  if (!Common.isUndefined(params.load)) {
-    if (params.preset) {
-      params.load.preset = params.preset;
-    }
-  } else {
-    params.load = {
-      preset: DEFAULT_DEFAULT_PRESET_NAME
-    };
-  }
-
-  if (Common.isUndefined(params.parent) && params.hideable) {
-    hideableGuis.push(this);
-  }
-
-  params.resizable = Common.isUndefined(params.parent) && params.resizable;
-
-  if (params.autoPlace && Common.isUndefined(params.scrollable)) {
-    params.scrollable = true;
-  }
-
-  var useLocalStorage = SUPPORTS_LOCAL_STORAGE && localStorage.getItem(getLocalStorageHash(this, 'isLocal')) === 'true';
-  var saveToLocalStorage = void 0;
-  var titleRow = void 0;
-  Object.defineProperties(this, {
-    parent: {
-      get: function get$$1() {
-        return params.parent;
-      }
-    },
-    scrollable: {
-      get: function get$$1() {
-        return params.scrollable;
-      }
-    },
-    autoPlace: {
-      get: function get$$1() {
-        return params.autoPlace;
-      }
-    },
-    closeOnTop: {
-      get: function get$$1() {
-        return params.closeOnTop;
-      }
-    },
-    preset: {
-      get: function get$$1() {
-        if (_this.parent) {
-          return _this.getRoot().preset;
-        }
-
-        return params.load.preset;
-      },
-      set: function set$$1(v) {
-        if (_this.parent) {
-          _this.getRoot().preset = v;
-        } else {
-          params.load.preset = v;
-        }
-
-        setPresetSelectIndex(this);
-
-        _this.revert();
-      }
-    },
-    width: {
-      get: function get$$1() {
-        return params.width;
-      },
-      set: function set$$1(v) {
-        params.width = v;
-        setWidth(_this, v);
-      }
-    },
-    name: {
-      get: function get$$1() {
-        return params.name;
-      },
-      set: function set$$1(v) {
-        params.name = v;
-
-        if (titleRow) {
-          titleRow.innerHTML = params.name;
-        }
-      }
-    },
-    closed: {
-      get: function get$$1() {
-        return params.closed;
-      },
-      set: function set$$1(v) {
-        params.closed = v;
-
-        if (params.closed) {
-          dom.addClass(_this.__ul, GUI.CLASS_CLOSED);
-        } else {
-          dom.removeClass(_this.__ul, GUI.CLASS_CLOSED);
-        }
-
-        this.onResize();
-
-        if (_this.__closeButton) {
-          _this.__closeButton.innerHTML = v ? GUI.TEXT_OPEN : GUI.TEXT_CLOSED;
-        }
-      }
-    },
-    load: {
-      get: function get$$1() {
-        return params.load;
-      }
-    },
-    useLocalStorage: {
-      get: function get$$1() {
-        return useLocalStorage;
-      },
-      set: function set$$1(bool) {
-        if (SUPPORTS_LOCAL_STORAGE) {
-          useLocalStorage = bool;
-
-          if (bool) {
-            dom.bind(window, 'unload', saveToLocalStorage);
-          } else {
-            dom.unbind(window, 'unload', saveToLocalStorage);
-          }
-
-          localStorage.setItem(getLocalStorageHash(_this, 'isLocal'), bool);
-        }
-      }
-    }
-  });
-
-  if (Common.isUndefined(params.parent)) {
-    this.closed = params.closed || false;
-    dom.addClass(this.domElement, GUI.CLASS_MAIN);
-    dom.makeSelectable(this.domElement, false);
-
-    if (SUPPORTS_LOCAL_STORAGE) {
-      if (useLocalStorage) {
-        _this.useLocalStorage = true;
-        var savedGui = localStorage.getItem(getLocalStorageHash(this, 'gui'));
-
-        if (savedGui) {
-          params.load = JSON.parse(savedGui);
-        }
-      }
-    }
-
-    this.__closeButton = document.createElement('div');
-    this.__closeButton.innerHTML = GUI.TEXT_CLOSED;
-    dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_BUTTON);
-
-    if (params.closeOnTop) {
-      dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_TOP);
-      this.domElement.insertBefore(this.__closeButton, this.domElement.childNodes[0]);
-    } else {
-      dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_BOTTOM);
-      this.domElement.appendChild(this.__closeButton);
-    }
-
-    dom.bind(this.__closeButton, 'click', function () {
-      _this.closed = !_this.closed;
-    });
-  } else {
-    if (params.closed === undefined) {
-      params.closed = true;
-    }
-
-    var titleRowName = document.createTextNode(params.name);
-    dom.addClass(titleRowName, 'controller-name');
-    titleRow = addRow(_this, titleRowName);
-
-    var onClickTitle = function onClickTitle(e) {
-      e.preventDefault();
-      _this.closed = !_this.closed;
-      return false;
-    };
-
-    dom.addClass(this.__ul, GUI.CLASS_CLOSED);
-    dom.addClass(titleRow, 'title');
-    dom.bind(titleRow, 'click', onClickTitle);
-
-    if (!params.closed) {
-      this.closed = false;
-    }
-  }
-
-  if (params.autoPlace) {
-    if (Common.isUndefined(params.parent)) {
-      if (autoPlaceVirgin) {
-        autoPlaceContainer = document.createElement('div');
-        dom.addClass(autoPlaceContainer, CSS_NAMESPACE);
-        dom.addClass(autoPlaceContainer, GUI.CLASS_AUTO_PLACE_CONTAINER);
-        document.body.appendChild(autoPlaceContainer);
-        autoPlaceVirgin = false;
-      }
-
-      autoPlaceContainer.appendChild(this.domElement);
-      dom.addClass(this.domElement, GUI.CLASS_AUTO_PLACE);
-    }
-
-    if (!this.parent) {
-      setWidth(_this, params.width);
-    }
-  }
-
-  this.__resizeHandler = function () {
-    _this.onResizeDebounced();
-  };
-
-  dom.bind(window, 'resize', this.__resizeHandler);
-  dom.bind(this.__ul, 'webkitTransitionEnd', this.__resizeHandler);
-  dom.bind(this.__ul, 'transitionend', this.__resizeHandler);
-  dom.bind(this.__ul, 'oTransitionEnd', this.__resizeHandler);
-  this.onResize();
-
-  if (params.resizable) {
-    addResizeHandle(this);
-  }
-
-  saveToLocalStorage = function saveToLocalStorage() {
-    if (SUPPORTS_LOCAL_STORAGE && localStorage.getItem(getLocalStorageHash(_this, 'isLocal')) === 'true') {
-      localStorage.setItem(getLocalStorageHash(_this, 'gui'), JSON.stringify(_this.getSaveObject()));
-    }
-  };
-
-  this.saveToLocalStorageIfPossible = saveToLocalStorage;
-
-  function resetWidth() {
-    var root = _this.getRoot();
-
-    root.width += 1;
-    Common.defer(function () {
-      root.width -= 1;
-    });
-  }
-
-  if (!params.parent) {
-    resetWidth();
-  }
-};
-
-GUI.toggleHide = function () {
-  hide = !hide;
-  Common.each(hideableGuis, function (gui) {
-    gui.domElement.style.display = hide ? 'none' : '';
-  });
-};
-
-GUI.CLASS_AUTO_PLACE = 'a';
-GUI.CLASS_AUTO_PLACE_CONTAINER = 'ac';
-GUI.CLASS_MAIN = 'main';
-GUI.CLASS_CONTROLLER_ROW = 'cr';
-GUI.CLASS_TOO_TALL = 'taller-than-window';
-GUI.CLASS_CLOSED = 'closed';
-GUI.CLASS_CLOSE_BUTTON = 'close-button';
-GUI.CLASS_CLOSE_TOP = 'close-top';
-GUI.CLASS_CLOSE_BOTTOM = 'close-bottom';
-GUI.CLASS_DRAG = 'drag';
-GUI.DEFAULT_WIDTH = 245;
-GUI.TEXT_CLOSED = 'Close Controls';
-GUI.TEXT_OPEN = 'Open Controls';
-
-GUI._keydownHandler = function (e) {
-  if (document.activeElement.type !== 'text' && (e.which === HIDE_KEY_CODE || e.keyCode === HIDE_KEY_CODE)) {
-    GUI.toggleHide();
-  }
-};
-
-dom.bind(window, 'keydown', GUI._keydownHandler, false);
-Common.extend(GUI.prototype, {
-  add: function add(object, property) {
-    return _add(this, object, property, {
-      factoryArgs: Array.prototype.slice.call(arguments, 2)
-    });
-  },
-  addColor: function addColor(object, property) {
-    return _add(this, object, property, {
-      color: true
-    });
-  },
-  remove: function remove(controller) {
-    this.__ul.removeChild(controller.__li);
-
-    this.__controllers.splice(this.__controllers.indexOf(controller), 1);
-
-    var _this = this;
-
-    Common.defer(function () {
-      _this.onResize();
-    });
-  },
-  destroy: function destroy() {
-    if (this.parent) {
-      throw new Error('Only the root GUI should be removed with .destroy(). ' + 'For subfolders, use gui.removeFolder(folder) instead.');
-    }
-
-    if (this.autoPlace) {
-      autoPlaceContainer.removeChild(this.domElement);
-    }
-
-    var _this = this;
-
-    Common.each(this.__folders, function (subfolder) {
-      _this.removeFolder(subfolder);
-    });
-    dom.unbind(window, 'keydown', GUI._keydownHandler, false);
-    removeListeners(this);
-  },
-  addFolder: function addFolder(name) {
-    if (this.__folders[name] !== undefined) {
-      throw new Error('You already have a folder in this GUI by the' + ' name "' + name + '"');
-    }
-
-    var newGuiParams = {
-      name: name,
-      parent: this
-    };
-    newGuiParams.autoPlace = this.autoPlace;
-
-    if (this.load && this.load.folders && this.load.folders[name]) {
-      newGuiParams.closed = this.load.folders[name].closed;
-      newGuiParams.load = this.load.folders[name];
-    }
-
-    var gui = new GUI(newGuiParams);
-    this.__folders[name] = gui;
-    var li = addRow(this, gui.domElement);
-    dom.addClass(li, 'folder');
-    return gui;
-  },
-  removeFolder: function removeFolder(folder) {
-    this.__ul.removeChild(folder.domElement.parentElement);
-
-    delete this.__folders[folder.name];
-
-    if (this.load && this.load.folders && this.load.folders[folder.name]) {
-      delete this.load.folders[folder.name];
-    }
-
-    removeListeners(folder);
-
-    var _this = this;
-
-    Common.each(folder.__folders, function (subfolder) {
-      folder.removeFolder(subfolder);
-    });
-    Common.defer(function () {
-      _this.onResize();
-    });
-  },
-  open: function open() {
-    this.closed = false;
-  },
-  close: function close() {
-    this.closed = true;
-  },
-  hide: function hide() {
-    this.domElement.style.display = 'none';
-  },
-  show: function show() {
-    this.domElement.style.display = '';
-  },
-  onResize: function onResize() {
-    var root = this.getRoot();
-
-    if (root.scrollable) {
-      var top = dom.getOffset(root.__ul).top;
-      var h = 0;
-      Common.each(root.__ul.childNodes, function (node) {
-        if (!(root.autoPlace && node === root.__save_row)) {
-          h += dom.getHeight(node);
-        }
-      });
-
-      if (window.innerHeight - top - CLOSE_BUTTON_HEIGHT < h) {
-        dom.addClass(root.domElement, GUI.CLASS_TOO_TALL);
-        root.__ul.style.height = window.innerHeight - top - CLOSE_BUTTON_HEIGHT + 'px';
-      } else {
-        dom.removeClass(root.domElement, GUI.CLASS_TOO_TALL);
-        root.__ul.style.height = 'auto';
-      }
-    }
-
-    if (root.__resize_handle) {
-      Common.defer(function () {
-        root.__resize_handle.style.height = root.__ul.offsetHeight + 'px';
-      });
-    }
-
-    if (root.__closeButton) {
-      root.__closeButton.style.width = root.width + 'px';
-    }
-  },
-  onResizeDebounced: Common.debounce(function () {
-    this.onResize();
-  }, 50),
-  remember: function remember() {
-    if (Common.isUndefined(SAVE_DIALOGUE)) {
-      SAVE_DIALOGUE = new CenteredDiv();
-      SAVE_DIALOGUE.domElement.innerHTML = saveDialogContents;
-    }
-
-    if (this.parent) {
-      throw new Error('You can only call remember on a top level GUI.');
-    }
-
-    var _this = this;
-
-    Common.each(Array.prototype.slice.call(arguments), function (object) {
-      if (_this.__rememberedObjects.length === 0) {
-        addSaveMenu(_this);
-      }
-
-      if (_this.__rememberedObjects.indexOf(object) === -1) {
-        _this.__rememberedObjects.push(object);
-      }
-    });
-
-    if (this.autoPlace) {
-      setWidth(this, this.width);
-    }
-  },
-  getRoot: function getRoot() {
-    var gui = this;
-
-    while (gui.parent) {
-      gui = gui.parent;
-    }
-
-    return gui;
-  },
-  getSaveObject: function getSaveObject() {
-    var toReturn = this.load;
-    toReturn.closed = this.closed;
-
-    if (this.__rememberedObjects.length > 0) {
-      toReturn.preset = this.preset;
-
-      if (!toReturn.remembered) {
-        toReturn.remembered = {};
-      }
-
-      toReturn.remembered[this.preset] = getCurrentPreset(this);
-    }
-
-    toReturn.folders = {};
-    Common.each(this.__folders, function (element, key) {
-      toReturn.folders[key] = element.getSaveObject();
-    });
-    return toReturn;
-  },
-  save: function save() {
-    if (!this.load.remembered) {
-      this.load.remembered = {};
-    }
-
-    this.load.remembered[this.preset] = getCurrentPreset(this);
-    markPresetModified(this, false);
-    this.saveToLocalStorageIfPossible();
-  },
-  saveAs: function saveAs(presetName) {
-    if (!this.load.remembered) {
-      this.load.remembered = {};
-      this.load.remembered[DEFAULT_DEFAULT_PRESET_NAME] = getCurrentPreset(this, true);
-    }
-
-    this.load.remembered[presetName] = getCurrentPreset(this);
-    this.preset = presetName;
-    addPresetOption(this, presetName, true);
-    this.saveToLocalStorageIfPossible();
-  },
-  revert: function revert(gui) {
-    Common.each(this.__controllers, function (controller) {
-      if (!this.getRoot().load.remembered) {
-        controller.setValue(controller.initialValue);
-      } else {
-        recallSavedValue(gui || this.getRoot(), controller);
-      }
-
-      if (controller.__onFinishChange) {
-        controller.__onFinishChange.call(controller, controller.getValue());
-      }
-    }, this);
-    Common.each(this.__folders, function (folder) {
-      folder.revert(folder);
-    });
-
-    if (!gui) {
-      markPresetModified(this.getRoot(), false);
-    }
-  },
-  listen: function listen(controller) {
-    var init = this.__listening.length === 0;
-
-    this.__listening.push(controller);
-
-    if (init) {
-      updateDisplays(this.__listening);
-    }
-  },
-  updateDisplay: function updateDisplay() {
-    Common.each(this.__controllers, function (controller) {
-      controller.updateDisplay();
-    });
-    Common.each(this.__folders, function (folder) {
-      folder.updateDisplay();
-    });
-  }
-});
-
-function addRow(gui, newDom, liBefore) {
-  var li = document.createElement('li');
-
-  if (newDom) {
-    li.appendChild(newDom);
-  }
-
-  if (liBefore) {
-    gui.__ul.insertBefore(li, liBefore);
-  } else {
-    gui.__ul.appendChild(li);
-  }
-
-  gui.onResize();
-  return li;
-}
-
-function removeListeners(gui) {
-  dom.unbind(window, 'resize', gui.__resizeHandler);
-
-  if (gui.saveToLocalStorageIfPossible) {
-    dom.unbind(window, 'unload', gui.saveToLocalStorageIfPossible);
-  }
-}
-
-function markPresetModified(gui, modified) {
-  var opt = gui.__preset_select[gui.__preset_select.selectedIndex];
-
-  if (modified) {
-    opt.innerHTML = opt.value + '*';
-  } else {
-    opt.innerHTML = opt.value;
-  }
-}
-
-function augmentController(gui, li, controller) {
-  controller.__li = li;
-  controller.__gui = gui;
-  Common.extend(controller, {
-    options: function options(_options) {
-      if (arguments.length > 1) {
-        var nextSibling = controller.__li.nextElementSibling;
-        controller.remove();
-        return _add(gui, controller.object, controller.property, {
-          before: nextSibling,
-          factoryArgs: [Common.toArray(arguments)]
-        });
-      }
-
-      if (Common.isArray(_options) || Common.isObject(_options)) {
-        var _nextSibling = controller.__li.nextElementSibling;
-        controller.remove();
-        return _add(gui, controller.object, controller.property, {
-          before: _nextSibling,
-          factoryArgs: [_options]
-        });
-      }
-    },
-    name: function name(_name) {
-      controller.__li.firstElementChild.firstElementChild.innerHTML = _name;
-      return controller;
-    },
-    listen: function listen() {
-      controller.__gui.listen(controller);
-
-      return controller;
-    },
-    remove: function remove() {
-      controller.__gui.remove(controller);
-
-      return controller;
-    }
-  });
-
-  if (controller instanceof NumberControllerSlider) {
-    var box = new NumberControllerBox(controller.object, controller.property, {
-      min: controller.__min,
-      max: controller.__max,
-      step: controller.__step
-    });
-    Common.each(['updateDisplay', 'onChange', 'onFinishChange', 'step', 'min', 'max'], function (method) {
-      var pc = controller[method];
-      var pb = box[method];
-
-      controller[method] = box[method] = function () {
-        var args = Array.prototype.slice.call(arguments);
-        pb.apply(box, args);
-        return pc.apply(controller, args);
-      };
-    });
-    dom.addClass(li, 'has-slider');
-    controller.domElement.insertBefore(box.domElement, controller.domElement.firstElementChild);
-  } else if (controller instanceof NumberControllerBox) {
-    var r = function r(returned) {
-      if (Common.isNumber(controller.__min) && Common.isNumber(controller.__max)) {
-        var oldName = controller.__li.firstElementChild.firstElementChild.innerHTML;
-        var wasListening = controller.__gui.__listening.indexOf(controller) > -1;
-        controller.remove();
-
-        var newController = _add(gui, controller.object, controller.property, {
-          before: controller.__li.nextElementSibling,
-          factoryArgs: [controller.__min, controller.__max, controller.__step]
-        });
-
-        newController.name(oldName);
-        if (wasListening) newController.listen();
-        return newController;
-      }
-
-      return returned;
-    };
-
-    controller.min = Common.compose(r, controller.min);
-    controller.max = Common.compose(r, controller.max);
-  } else if (controller instanceof BooleanController) {
-    dom.bind(li, 'click', function () {
-      dom.fakeEvent(controller.__checkbox, 'click');
-    });
-    dom.bind(controller.__checkbox, 'click', function (e) {
-      e.stopPropagation();
-    });
-  } else if (controller instanceof FunctionController) {
-    dom.bind(li, 'click', function () {
-      dom.fakeEvent(controller.__button, 'click');
-    });
-    dom.bind(li, 'mouseover', function () {
-      dom.addClass(controller.__button, 'hover');
-    });
-    dom.bind(li, 'mouseout', function () {
-      dom.removeClass(controller.__button, 'hover');
-    });
-  } else if (controller instanceof ColorController) {
-    dom.addClass(li, 'color');
-    controller.updateDisplay = Common.compose(function (val) {
-      li.style.borderLeftColor = controller.__color.toString();
-      return val;
-    }, controller.updateDisplay);
-    controller.updateDisplay();
-  }
-
-  controller.setValue = Common.compose(function (val) {
-    if (gui.getRoot().__preset_select && controller.isModified()) {
-      markPresetModified(gui.getRoot(), true);
-    }
-
-    return val;
-  }, controller.setValue);
-}
-
-function recallSavedValue(gui, controller) {
-  var root = gui.getRoot();
-
-  var matchedIndex = root.__rememberedObjects.indexOf(controller.object);
-
-  if (matchedIndex !== -1) {
-    var controllerMap = root.__rememberedObjectIndecesToControllers[matchedIndex];
-
-    if (controllerMap === undefined) {
-      controllerMap = {};
-      root.__rememberedObjectIndecesToControllers[matchedIndex] = controllerMap;
-    }
-
-    controllerMap[controller.property] = controller;
-
-    if (root.load && root.load.remembered) {
-      var presetMap = root.load.remembered;
-      var preset = void 0;
-
-      if (presetMap[gui.preset]) {
-        preset = presetMap[gui.preset];
-      } else if (presetMap[DEFAULT_DEFAULT_PRESET_NAME]) {
-        preset = presetMap[DEFAULT_DEFAULT_PRESET_NAME];
-      } else {
-        return;
-      }
-
-      if (preset[matchedIndex] && preset[matchedIndex][controller.property] !== undefined) {
-        var value = preset[matchedIndex][controller.property];
-        controller.initialValue = value;
-        controller.setValue(value);
-      }
-    }
-  }
-}
-
-function _add(gui, object, property, params) {
-  if (object[property] === undefined) {
-    throw new Error('Object "' + object + '" has no property "' + property + '"');
-  }
-
-  var controller = void 0;
-
-  if (params.color) {
-    controller = new ColorController(object, property);
-  } else {
-    var factoryArgs = [object, property].concat(params.factoryArgs);
-    controller = ControllerFactory.apply(gui, factoryArgs);
-  }
-
-  if (params.before instanceof Controller) {
-    params.before = params.before.__li;
-  }
-
-  recallSavedValue(gui, controller);
-  dom.addClass(controller.domElement, 'c');
-  var name = document.createElement('span');
-  dom.addClass(name, 'property-name');
-  name.innerHTML = controller.property;
-  var container = document.createElement('div');
-  container.appendChild(name);
-  container.appendChild(controller.domElement);
-  var li = addRow(gui, container, params.before);
-  dom.addClass(li, GUI.CLASS_CONTROLLER_ROW);
-
-  if (controller instanceof ColorController) {
-    dom.addClass(li, 'color');
-  } else {
-    dom.addClass(li, _typeof(controller.getValue()));
-  }
-
-  augmentController(gui, li, controller);
-
-  gui.__controllers.push(controller);
-
-  return controller;
-}
-
-function getLocalStorageHash(gui, key) {
-  return document.location.href + '.' + key;
-}
-
-function addPresetOption(gui, name, setSelected) {
-  var opt = document.createElement('option');
-  opt.innerHTML = name;
-  opt.value = name;
-
-  gui.__preset_select.appendChild(opt);
-
-  if (setSelected) {
-    gui.__preset_select.selectedIndex = gui.__preset_select.length - 1;
-  }
-}
-
-function showHideExplain(gui, explain) {
-  explain.style.display = gui.useLocalStorage ? 'block' : 'none';
-}
-
-function addSaveMenu(gui) {
-  var div = gui.__save_row = document.createElement('li');
-  dom.addClass(gui.domElement, 'has-save');
-
-  gui.__ul.insertBefore(div, gui.__ul.firstChild);
-
-  dom.addClass(div, 'save-row');
-  var gears = document.createElement('span');
-  gears.innerHTML = '&nbsp;';
-  dom.addClass(gears, 'button gears');
-  var button = document.createElement('span');
-  button.innerHTML = 'Save';
-  dom.addClass(button, 'button');
-  dom.addClass(button, 'save');
-  var button2 = document.createElement('span');
-  button2.innerHTML = 'New';
-  dom.addClass(button2, 'button');
-  dom.addClass(button2, 'save-as');
-  var button3 = document.createElement('span');
-  button3.innerHTML = 'Revert';
-  dom.addClass(button3, 'button');
-  dom.addClass(button3, 'revert');
-  var select = gui.__preset_select = document.createElement('select');
-
-  if (gui.load && gui.load.remembered) {
-    Common.each(gui.load.remembered, function (value, key) {
-      addPresetOption(gui, key, key === gui.preset);
-    });
-  } else {
-    addPresetOption(gui, DEFAULT_DEFAULT_PRESET_NAME, false);
-  }
-
-  dom.bind(select, 'change', function () {
-    for (var index = 0; index < gui.__preset_select.length; index++) {
-      gui.__preset_select[index].innerHTML = gui.__preset_select[index].value;
-    }
-
-    gui.preset = this.value;
-  });
-  div.appendChild(select);
-  div.appendChild(gears);
-  div.appendChild(button);
-  div.appendChild(button2);
-  div.appendChild(button3);
-
-  if (SUPPORTS_LOCAL_STORAGE) {
-    var explain = document.getElementById('dg-local-explain');
-    var localStorageCheckBox = document.getElementById('dg-local-storage');
-    var saveLocally = document.getElementById('dg-save-locally');
-    saveLocally.style.display = 'block';
-
-    if (localStorage.getItem(getLocalStorageHash(gui, 'isLocal')) === 'true') {
-      localStorageCheckBox.setAttribute('checked', 'checked');
-    }
-
-    showHideExplain(gui, explain);
-    dom.bind(localStorageCheckBox, 'change', function () {
-      gui.useLocalStorage = !gui.useLocalStorage;
-      showHideExplain(gui, explain);
-    });
-  }
-
-  var newConstructorTextArea = document.getElementById('dg-new-constructor');
-  dom.bind(newConstructorTextArea, 'keydown', function (e) {
-    if (e.metaKey && (e.which === 67 || e.keyCode === 67)) {
-      SAVE_DIALOGUE.hide();
-    }
-  });
-  dom.bind(gears, 'click', function () {
-    newConstructorTextArea.innerHTML = JSON.stringify(gui.getSaveObject(), undefined, 2);
-    SAVE_DIALOGUE.show();
-    newConstructorTextArea.focus();
-    newConstructorTextArea.select();
-  });
-  dom.bind(button, 'click', function () {
-    gui.save();
-  });
-  dom.bind(button2, 'click', function () {
-    var presetName = prompt('Enter a new preset name.');
-
-    if (presetName) {
-      gui.saveAs(presetName);
-    }
-  });
-  dom.bind(button3, 'click', function () {
-    gui.revert();
-  });
-}
-
-function addResizeHandle(gui) {
-  var pmouseX = void 0;
-  gui.__resize_handle = document.createElement('div');
-  Common.extend(gui.__resize_handle.style, {
-    width: '6px',
-    marginLeft: '-3px',
-    height: '200px',
-    cursor: 'ew-resize',
-    position: 'absolute'
-  });
-
-  function drag(e) {
-    e.preventDefault();
-    gui.width += pmouseX - e.clientX;
-    gui.onResize();
-    pmouseX = e.clientX;
-    return false;
-  }
-
-  function dragStop() {
-    dom.removeClass(gui.__closeButton, GUI.CLASS_DRAG);
-    dom.unbind(window, 'mousemove', drag);
-    dom.unbind(window, 'mouseup', dragStop);
-  }
-
-  function dragStart(e) {
-    e.preventDefault();
-    pmouseX = e.clientX;
-    dom.addClass(gui.__closeButton, GUI.CLASS_DRAG);
-    dom.bind(window, 'mousemove', drag);
-    dom.bind(window, 'mouseup', dragStop);
-    return false;
-  }
-
-  dom.bind(gui.__resize_handle, 'mousedown', dragStart);
-  dom.bind(gui.__closeButton, 'mousedown', dragStart);
-  gui.domElement.insertBefore(gui.__resize_handle, gui.domElement.firstElementChild);
-}
-
-function setWidth(gui, w) {
-  gui.domElement.style.width = w + 'px';
-
-  if (gui.__save_row && gui.autoPlace) {
-    gui.__save_row.style.width = w + 'px';
-  }
-
-  if (gui.__closeButton) {
-    gui.__closeButton.style.width = w + 'px';
-  }
-}
-
-function getCurrentPreset(gui, useInitialValues) {
-  var toReturn = {};
-  Common.each(gui.__rememberedObjects, function (val, index) {
-    var savedValues = {};
-    var controllerMap = gui.__rememberedObjectIndecesToControllers[index];
-    Common.each(controllerMap, function (controller, property) {
-      savedValues[property] = useInitialValues ? controller.initialValue : controller.getValue();
-    });
-    toReturn[index] = savedValues;
-  });
-  return toReturn;
-}
-
-function setPresetSelectIndex(gui) {
-  for (var index = 0; index < gui.__preset_select.length; index++) {
-    if (gui.__preset_select[index].value === gui.preset) {
-      gui.__preset_select.selectedIndex = index;
-    }
-  }
-}
-
-function updateDisplays(controllerArray) {
-  if (controllerArray.length !== 0) {
-    requestAnimationFrame$1.call(window, function () {
-      updateDisplays(controllerArray);
-    });
-  }
-
-  Common.each(controllerArray, function (c) {
-    c.updateDisplay();
-  });
-}
-
-var color = {
-  Color: Color,
-  math: ColorMath,
-  interpret: interpret
-};
-exports.color = color;
-var controllers = {
-  Controller: Controller,
-  BooleanController: BooleanController,
-  OptionController: OptionController,
-  StringController: StringController,
-  NumberController: NumberController,
-  NumberControllerBox: NumberControllerBox,
-  NumberControllerSlider: NumberControllerSlider,
-  FunctionController: FunctionController,
-  ColorController: ColorController
-};
-exports.controllers = controllers;
-var dom$1 = {
-  dom: dom
-};
-exports.dom = dom$1;
-var gui = {
-  GUI: GUI
-};
-exports.gui = gui;
-var GUI$1 = GUI;
-exports.GUI = GUI$1;
-var index = {
-  color: color,
-  controllers: controllers,
-  dom: dom$1,
-  gui: gui,
-  GUI: GUI$1
-};
-var _default = index;
-exports.default = _default;
-},{}],"../node_modules/three/build/three.module.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.ArrayCamera = ArrayCamera;
-exports.AxisHelper = AxisHelper;
-exports.BinaryTextureLoader = BinaryTextureLoader;
-exports.Bone = Bone;
-exports.BoundingBoxHelper = BoundingBoxHelper;
-exports.BufferAttribute = BufferAttribute;
-exports.BufferGeometry = BufferGeometry;
-exports.Camera = Camera;
-exports.CanvasRenderer = CanvasRenderer;
-exports.CompressedTextureLoader = CompressedTextureLoader;
-exports.CubicInterpolant = CubicInterpolant;
-exports.Curve = Curve;
-exports.DataTextureLoader = DataTextureLoader;
-exports.DiscreteInterpolant = DiscreteInterpolant;
-exports.DynamicBufferAttribute = DynamicBufferAttribute;
-exports.EdgesHelper = EdgesHelper;
-exports.EventDispatcher = EventDispatcher;
-exports.FileLoader = FileLoader;
-exports.Float16BufferAttribute = Float16BufferAttribute;
-exports.Float32Attribute = Float32Attribute;
-exports.Float32BufferAttribute = Float32BufferAttribute;
-exports.Float64Attribute = Float64Attribute;
-exports.Float64BufferAttribute = Float64BufferAttribute;
-exports.GLBufferAttribute = GLBufferAttribute;
-exports.ImageBitmapLoader = ImageBitmapLoader;
-exports.ImmediateRenderObject = ImmediateRenderObject;
-exports.InstancedBufferAttribute = InstancedBufferAttribute;
-exports.InstancedBufferGeometry = InstancedBufferGeometry;
-exports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;
-exports.InstancedMesh = InstancedMesh;
-exports.Int16Attribute = Int16Attribute;
-exports.Int16BufferAttribute = Int16BufferAttribute;
-exports.Int32Attribute = Int32Attribute;
-exports.Int32BufferAttribute = Int32BufferAttribute;
-exports.Int8Attribute = Int8Attribute;
-exports.Int8BufferAttribute = Int8BufferAttribute;
-exports.InterleavedBuffer = InterleavedBuffer;
-exports.InterleavedBufferAttribute = InterleavedBufferAttribute;
-exports.Interpolant = Interpolant;
-exports.JSONLoader = JSONLoader;
-exports.LensFlare = LensFlare;
-exports.Line = Line;
-exports.LineSegments = LineSegments;
-exports.LinearInterpolant = LinearInterpolant;
-exports.Loader = Loader;
-exports.LoadingManager = LoadingManager;
-exports.Material = Material;
-exports.Mesh = Mesh;
-exports.MeshFaceMaterial = MeshFaceMaterial;
-exports.MeshPhysicalMaterial = MeshPhysicalMaterial;
-exports.MeshStandardMaterial = MeshStandardMaterial;
-exports.MultiMaterial = MultiMaterial;
-exports.Object3D = Object3D;
-exports.ParametricGeometry = exports.ParametricBufferGeometry = ParametricGeometry;
-exports.Particle = Particle;
-exports.ParticleBasicMaterial = ParticleBasicMaterial;
-exports.ParticleSystem = ParticleSystem;
-exports.ParticleSystemMaterial = ParticleSystemMaterial;
-exports.PerspectiveCamera = PerspectiveCamera;
-exports.PointCloud = PointCloud;
-exports.PointCloudMaterial = PointCloudMaterial;
-exports.Points = Points;
-exports.PropertyBinding = PropertyBinding;
-exports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;
-exports.Raycaster = Raycaster;
-exports.ShaderMaterial = ShaderMaterial;
-exports.SkinnedMesh = SkinnedMesh;
-exports.TextureLoader = TextureLoader;
-exports.Uint16Attribute = Uint16Attribute;
-exports.Uint16BufferAttribute = Uint16BufferAttribute;
-exports.Uint32Attribute = Uint32Attribute;
-exports.Uint32BufferAttribute = Uint32BufferAttribute;
-exports.Uint8Attribute = Uint8Attribute;
-exports.Uint8BufferAttribute = Uint8BufferAttribute;
-exports.Uint8ClampedAttribute = Uint8ClampedAttribute;
-exports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;
-exports.Vertex = Vertex;
-exports.WebGLRenderTargetCube = WebGLRenderTargetCube;
-exports.WebGLRenderer = WebGLRenderer;
-exports.WebGLUtils = WebGLUtils;
-exports.WireframeHelper = WireframeHelper;
-exports.XHRLoader = XHRLoader;
-exports.FloatType = exports.FlatShading = exports.FaceColors = exports.ExtrudeGeometry = exports.ExtrudeBufferGeometry = exports.Euler = exports.EquirectangularRefractionMapping = exports.EquirectangularReflectionMapping = exports.EqualStencilFunc = exports.EqualDepth = exports.EllipseCurve = exports.EdgesGeometry = exports.DynamicReadUsage = exports.DynamicDrawUsage = exports.DynamicCopyUsage = exports.DstColorFactor = exports.DstAlphaFactor = exports.DoubleSide = exports.DodecahedronGeometry = exports.DodecahedronBufferGeometry = exports.DirectionalLightHelper = exports.DirectionalLight = exports.DepthTexture = exports.DepthStencilFormat = exports.DepthFormat = exports.DefaultLoadingManager = exports.DecrementWrapStencilOp = exports.DecrementStencilOp = exports.DataUtils = exports.DataTexture3D = exports.DataTexture2DArray = exports.DataTexture = exports.Cylindrical = exports.CylinderGeometry = exports.CylinderBufferGeometry = exports.CustomToneMapping = exports.CustomBlending = exports.CurvePath = exports.CullFaceNone = exports.CullFaceFrontBack = exports.CullFaceFront = exports.CullFaceBack = exports.CubicBezierCurve3 = exports.CubicBezierCurve = exports.CubeUVRefractionMapping = exports.CubeUVReflectionMapping = exports.CubeTextureLoader = exports.CubeTexture = exports.CubeRefractionMapping = exports.CubeReflectionMapping = exports.CubeCamera = exports.ConeGeometry = exports.ConeBufferGeometry = exports.CompressedTexture = exports.ColorKeyframeTrack = exports.Color = exports.Clock = exports.ClampToEdgeWrapping = exports.CircleGeometry = exports.CircleBufferGeometry = exports.CineonToneMapping = exports.CatmullRomCurve3 = exports.CanvasTexture = exports.CameraHelper = exports.Cache = exports.ByteType = exports.BufferGeometryLoader = exports.BoxHelper = exports.BoxGeometry = exports.BoxBufferGeometry = exports.Box3Helper = exports.Box3 = exports.Box2 = exports.BooleanKeyframeTrack = exports.BasicShadowMap = exports.BasicDepthPacking = exports.BackSide = exports.AxesHelper = exports.AudioLoader = exports.AudioListener = exports.AudioContext = exports.AudioAnalyser = exports.Audio = exports.ArrowHelper = exports.ArcCurve = exports.AnimationUtils = exports.AnimationObjectGroup = exports.AnimationMixer = exports.AnimationLoader = exports.AnimationClip = exports.AmbientLightProbe = exports.AmbientLight = exports.AlwaysStencilFunc = exports.AlwaysDepth = exports.AlphaFormat = exports.AdditiveBlending = exports.AdditiveAnimationBlendMode = exports.AddOperation = exports.AddEquation = exports.ACESFilmicToneMapping = void 0;
-exports.ObjectLoader = exports.NumberKeyframeTrack = exports.NotEqualStencilFunc = exports.NotEqualDepth = exports.NormalBlending = exports.NormalAnimationBlendMode = exports.NoToneMapping = exports.NoColors = exports.NoBlending = exports.NeverStencilFunc = exports.NeverDepth = exports.NearestMipmapNearestFilter = exports.NearestMipmapLinearFilter = exports.NearestMipMapNearestFilter = exports.NearestMipMapLinearFilter = exports.NearestFilter = exports.MultiplyOperation = exports.MultiplyBlending = exports.MixOperation = exports.MirroredRepeatWrapping = exports.MinEquation = exports.MeshToonMaterial = exports.MeshPhongMaterial = exports.MeshNormalMaterial = exports.MeshMatcapMaterial = exports.MeshLambertMaterial = exports.MeshDistanceMaterial = exports.MeshDepthMaterial = exports.MeshBasicMaterial = exports.MaxEquation = exports.Matrix4 = exports.Matrix3 = exports.MathUtils = exports.Math = exports.MaterialLoader = exports.MOUSE = exports.LuminanceFormat = exports.LuminanceAlphaFormat = exports.LoopRepeat = exports.LoopPingPong = exports.LoopOnce = exports.LogLuvEncoding = exports.LoaderUtils = exports.LinearToneMapping = exports.LinearMipmapNearestFilter = exports.LinearMipmapLinearFilter = exports.LinearMipMapNearestFilter = exports.LinearMipMapLinearFilter = exports.LinearFilter = exports.LinearEncoding = exports.LineStrip = exports.LinePieces = exports.LineLoop = exports.LineDashedMaterial = exports.LineCurve3 = exports.LineCurve = exports.LineBasicMaterial = exports.Line3 = exports.LightProbe = exports.Light = exports.LessStencilFunc = exports.LessEqualStencilFunc = exports.LessEqualDepth = exports.LessDepth = exports.Layers = exports.LatheGeometry = exports.LatheBufferGeometry = exports.LOD = exports.KeyframeTrack = exports.KeepStencilOp = exports.InvertStencilOp = exports.InterpolateSmooth = exports.InterpolateLinear = exports.InterpolateDiscrete = exports.IntType = exports.IncrementWrapStencilOp = exports.IncrementStencilOp = exports.ImageUtils = exports.ImageLoader = exports.IcosahedronGeometry = exports.IcosahedronBufferGeometry = exports.HemisphereLightProbe = exports.HemisphereLightHelper = exports.HemisphereLight = exports.HalfFloatType = exports.Group = exports.GridHelper = exports.GreaterStencilFunc = exports.GreaterEqualStencilFunc = exports.GreaterEqualDepth = exports.GreaterDepth = exports.GammaEncoding = exports.GLSL3 = exports.GLSL1 = exports.Frustum = exports.FrontSide = exports.FontLoader = exports.Font = exports.FogExp2 = exports.Fog = void 0;
-exports.ShapeBufferGeometry = exports.Shape = exports.ShadowMaterial = exports.ShaderLib = exports.ShaderChunk = exports.SceneUtils = exports.Scene = exports.SRGB8_ALPHA8_ASTC_8x8_Format = exports.SRGB8_ALPHA8_ASTC_8x6_Format = exports.SRGB8_ALPHA8_ASTC_8x5_Format = exports.SRGB8_ALPHA8_ASTC_6x6_Format = exports.SRGB8_ALPHA8_ASTC_6x5_Format = exports.SRGB8_ALPHA8_ASTC_5x5_Format = exports.SRGB8_ALPHA8_ASTC_5x4_Format = exports.SRGB8_ALPHA8_ASTC_4x4_Format = exports.SRGB8_ALPHA8_ASTC_12x12_Format = exports.SRGB8_ALPHA8_ASTC_12x10_Format = exports.SRGB8_ALPHA8_ASTC_10x8_Format = exports.SRGB8_ALPHA8_ASTC_10x6_Format = exports.SRGB8_ALPHA8_ASTC_10x5_Format = exports.SRGB8_ALPHA8_ASTC_10x10_Format = exports.RingGeometry = exports.RingBufferGeometry = exports.ReverseSubtractEquation = exports.ReplaceStencilOp = exports.RepeatWrapping = exports.ReinhardToneMapping = exports.RedIntegerFormat = exports.RedFormat = exports.RectAreaLight = exports.Ray = exports.RawShaderMaterial = exports.RGIntegerFormat = exports.RGFormat = exports.RGB_S3TC_DXT1_Format = exports.RGB_PVRTC_4BPPV1_Format = exports.RGB_PVRTC_2BPPV1_Format = exports.RGB_ETC2_Format = exports.RGB_ETC1_Format = exports.RGBM7Encoding = exports.RGBM16Encoding = exports.RGBIntegerFormat = exports.RGBFormat = exports.RGBEFormat = exports.RGBEEncoding = exports.RGBDEncoding = exports.RGBA_S3TC_DXT5_Format = exports.RGBA_S3TC_DXT3_Format = exports.RGBA_S3TC_DXT1_Format = exports.RGBA_PVRTC_4BPPV1_Format = exports.RGBA_PVRTC_2BPPV1_Format = exports.RGBA_ETC2_EAC_Format = exports.RGBA_BPTC_Format = exports.RGBA_ASTC_8x8_Format = exports.RGBA_ASTC_8x6_Format = exports.RGBA_ASTC_8x5_Format = exports.RGBA_ASTC_6x6_Format = exports.RGBA_ASTC_6x5_Format = exports.RGBA_ASTC_5x5_Format = exports.RGBA_ASTC_5x4_Format = exports.RGBA_ASTC_4x4_Format = exports.RGBA_ASTC_12x12_Format = exports.RGBA_ASTC_12x10_Format = exports.RGBA_ASTC_10x8_Format = exports.RGBA_ASTC_10x6_Format = exports.RGBA_ASTC_10x5_Format = exports.RGBA_ASTC_10x10_Format = exports.RGBAIntegerFormat = exports.RGBAFormat = exports.RGBADepthPacking = exports.REVISION = exports.QuaternionKeyframeTrack = exports.Quaternion = exports.QuadraticBezierCurve3 = exports.QuadraticBezierCurve = exports.PropertyMixer = exports.PositionalAudio = exports.PolyhedronGeometry = exports.PolyhedronBufferGeometry = exports.PolarGridHelper = exports.PointsMaterial = exports.PointLightHelper = exports.PointLight = exports.PlaneHelper = exports.PlaneGeometry = exports.PlaneBufferGeometry = exports.Plane = exports.Path = exports.PMREMGenerator = exports.PCFSoftShadowMap = exports.PCFShadowMap = exports.OrthographicCamera = exports.OneMinusSrcColorFactor = exports.OneMinusSrcAlphaFactor = exports.OneMinusDstColorFactor = exports.OneMinusDstAlphaFactor = exports.OneFactor = exports.OctahedronGeometry = exports.OctahedronBufferGeometry = exports.ObjectSpaceNormalMap = void 0;
-exports.sRGBEncoding = exports.ZeroStencilOp = exports.ZeroSlopeEnding = exports.ZeroFactor = exports.ZeroCurvatureEnding = exports.WrapAroundEnding = exports.WireframeGeometry = exports.WebGLRenderTarget = exports.WebGLMultisampleRenderTarget = exports.WebGLCubeRenderTarget = exports.WebGL1Renderer = exports.VideoTexture = exports.VertexColors = exports.VectorKeyframeTrack = exports.Vector4 = exports.Vector3 = exports.Vector2 = exports.VSMShadowMap = exports.UnsignedShortType = exports.UnsignedShort565Type = exports.UnsignedShort5551Type = exports.UnsignedShort4444Type = exports.UnsignedIntType = exports.UnsignedInt248Type = exports.UnsignedByteType = exports.UniformsUtils = exports.UniformsLib = exports.Uniform = exports.UVMapping = exports.TubeGeometry = exports.TubeBufferGeometry = exports.TrianglesDrawMode = exports.TriangleStripDrawMode = exports.TriangleFanDrawMode = exports.Triangle = exports.TorusKnotGeometry = exports.TorusKnotBufferGeometry = exports.TorusGeometry = exports.TorusBufferGeometry = exports.Texture = exports.TextGeometry = exports.TextBufferGeometry = exports.TetrahedronGeometry = exports.TetrahedronBufferGeometry = exports.TangentSpaceNormalMap = exports.TOUCH = exports.SubtractiveBlending = exports.SubtractEquation = exports.StringKeyframeTrack = exports.StreamReadUsage = exports.StreamDrawUsage = exports.StreamCopyUsage = exports.StereoCamera = exports.StaticReadUsage = exports.StaticDrawUsage = exports.StaticCopyUsage = exports.SrcColorFactor = exports.SrcAlphaSaturateFactor = exports.SrcAlphaFactor = exports.SpriteMaterial = exports.Sprite = exports.SpotLightHelper = exports.SpotLight = exports.SplineCurve = exports.SphericalHarmonics3 = exports.Spherical = exports.SphereGeometry = exports.SphereBufferGeometry = exports.Sphere = exports.SmoothShading = exports.SkeletonHelper = exports.Skeleton = exports.ShortType = exports.ShapeUtils = exports.ShapePath = exports.ShapeGeometry = void 0;
-// threejs.org/license
-const REVISION = '126';
-exports.REVISION = REVISION;
-const MOUSE = {
-  LEFT: 0,
-  MIDDLE: 1,
-  RIGHT: 2,
-  ROTATE: 0,
-  DOLLY: 1,
-  PAN: 2
-};
-exports.MOUSE = MOUSE;
-const TOUCH = {
-  ROTATE: 0,
-  PAN: 1,
-  DOLLY_PAN: 2,
-  DOLLY_ROTATE: 3
-};
-exports.TOUCH = TOUCH;
-const CullFaceNone = 0;
-exports.CullFaceNone = CullFaceNone;
-const CullFaceBack = 1;
-exports.CullFaceBack = CullFaceBack;
-const CullFaceFront = 2;
-exports.CullFaceFront = CullFaceFront;
-const CullFaceFrontBack = 3;
-exports.CullFaceFrontBack = CullFaceFrontBack;
-const BasicShadowMap = 0;
-exports.BasicShadowMap = BasicShadowMap;
-const PCFShadowMap = 1;
-exports.PCFShadowMap = PCFShadowMap;
-const PCFSoftShadowMap = 2;
-exports.PCFSoftShadowMap = PCFSoftShadowMap;
-const VSMShadowMap = 3;
-exports.VSMShadowMap = VSMShadowMap;
-const FrontSide = 0;
-exports.FrontSide = FrontSide;
-const BackSide = 1;
-exports.BackSide = BackSide;
-const DoubleSide = 2;
-exports.DoubleSide = DoubleSide;
-const FlatShading = 1;
-exports.FlatShading = FlatShading;
-const SmoothShading = 2;
-exports.SmoothShading = SmoothShading;
-const NoBlending = 0;
-exports.NoBlending = NoBlending;
-const NormalBlending = 1;
-exports.NormalBlending = NormalBlending;
-const AdditiveBlending = 2;
-exports.AdditiveBlending = AdditiveBlending;
-const SubtractiveBlending = 3;
-exports.SubtractiveBlending = SubtractiveBlending;
-const MultiplyBlending = 4;
-exports.MultiplyBlending = MultiplyBlending;
-const CustomBlending = 5;
-exports.CustomBlending = CustomBlending;
-const AddEquation = 100;
-exports.AddEquation = AddEquation;
-const SubtractEquation = 101;
-exports.SubtractEquation = SubtractEquation;
-const ReverseSubtractEquation = 102;
-exports.ReverseSubtractEquation = ReverseSubtractEquation;
-const MinEquation = 103;
-exports.MinEquation = MinEquation;
-const MaxEquation = 104;
-exports.MaxEquation = MaxEquation;
-const ZeroFactor = 200;
-exports.ZeroFactor = ZeroFactor;
-const OneFactor = 201;
-exports.OneFactor = OneFactor;
-const SrcColorFactor = 202;
-exports.SrcColorFactor = SrcColorFactor;
-const OneMinusSrcColorFactor = 203;
-exports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;
-const SrcAlphaFactor = 204;
-exports.SrcAlphaFactor = SrcAlphaFactor;
-const OneMinusSrcAlphaFactor = 205;
-exports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;
-const DstAlphaFactor = 206;
-exports.DstAlphaFactor = DstAlphaFactor;
-const OneMinusDstAlphaFactor = 207;
-exports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;
-const DstColorFactor = 208;
-exports.DstColorFactor = DstColorFactor;
-const OneMinusDstColorFactor = 209;
-exports.OneMinusDstColorFactor = OneMinusDstColorFactor;
-const SrcAlphaSaturateFactor = 210;
-exports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;
-const NeverDepth = 0;
-exports.NeverDepth = NeverDepth;
-const AlwaysDepth = 1;
-exports.AlwaysDepth = AlwaysDepth;
-const LessDepth = 2;
-exports.LessDepth = LessDepth;
-const LessEqualDepth = 3;
-exports.LessEqualDepth = LessEqualDepth;
-const EqualDepth = 4;
-exports.EqualDepth = EqualDepth;
-const GreaterEqualDepth = 5;
-exports.GreaterEqualDepth = GreaterEqualDepth;
-const GreaterDepth = 6;
-exports.GreaterDepth = GreaterDepth;
-const NotEqualDepth = 7;
-exports.NotEqualDepth = NotEqualDepth;
-const MultiplyOperation = 0;
-exports.MultiplyOperation = MultiplyOperation;
-const MixOperation = 1;
-exports.MixOperation = MixOperation;
-const AddOperation = 2;
-exports.AddOperation = AddOperation;
-const NoToneMapping = 0;
-exports.NoToneMapping = NoToneMapping;
-const LinearToneMapping = 1;
-exports.LinearToneMapping = LinearToneMapping;
-const ReinhardToneMapping = 2;
-exports.ReinhardToneMapping = ReinhardToneMapping;
-const CineonToneMapping = 3;
-exports.CineonToneMapping = CineonToneMapping;
-const ACESFilmicToneMapping = 4;
-exports.ACESFilmicToneMapping = ACESFilmicToneMapping;
-const CustomToneMapping = 5;
-exports.CustomToneMapping = CustomToneMapping;
-const UVMapping = 300;
-exports.UVMapping = UVMapping;
-const CubeReflectionMapping = 301;
-exports.CubeReflectionMapping = CubeReflectionMapping;
-const CubeRefractionMapping = 302;
-exports.CubeRefractionMapping = CubeRefractionMapping;
-const EquirectangularReflectionMapping = 303;
-exports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;
-const EquirectangularRefractionMapping = 304;
-exports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;
-const CubeUVReflectionMapping = 306;
-exports.CubeUVReflectionMapping = CubeUVReflectionMapping;
-const CubeUVRefractionMapping = 307;
-exports.CubeUVRefractionMapping = CubeUVRefractionMapping;
-const RepeatWrapping = 1000;
-exports.RepeatWrapping = RepeatWrapping;
-const ClampToEdgeWrapping = 1001;
-exports.ClampToEdgeWrapping = ClampToEdgeWrapping;
-const MirroredRepeatWrapping = 1002;
-exports.MirroredRepeatWrapping = MirroredRepeatWrapping;
-const NearestFilter = 1003;
-exports.NearestFilter = NearestFilter;
-const NearestMipmapNearestFilter = 1004;
-exports.NearestMipmapNearestFilter = NearestMipmapNearestFilter;
-const NearestMipMapNearestFilter = 1004;
-exports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;
-const NearestMipmapLinearFilter = 1005;
-exports.NearestMipmapLinearFilter = NearestMipmapLinearFilter;
-const NearestMipMapLinearFilter = 1005;
-exports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;
-const LinearFilter = 1006;
-exports.LinearFilter = LinearFilter;
-const LinearMipmapNearestFilter = 1007;
-exports.LinearMipmapNearestFilter = LinearMipmapNearestFilter;
-const LinearMipMapNearestFilter = 1007;
-exports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;
-const LinearMipmapLinearFilter = 1008;
-exports.LinearMipmapLinearFilter = LinearMipmapLinearFilter;
-const LinearMipMapLinearFilter = 1008;
-exports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;
-const UnsignedByteType = 1009;
-exports.UnsignedByteType = UnsignedByteType;
-const ByteType = 1010;
-exports.ByteType = ByteType;
-const ShortType = 1011;
-exports.ShortType = ShortType;
-const UnsignedShortType = 1012;
-exports.UnsignedShortType = UnsignedShortType;
-const IntType = 1013;
-exports.IntType = IntType;
-const UnsignedIntType = 1014;
-exports.UnsignedIntType = UnsignedIntType;
-const FloatType = 1015;
-exports.FloatType = FloatType;
-const HalfFloatType = 1016;
-exports.HalfFloatType = HalfFloatType;
-const UnsignedShort4444Type = 1017;
-exports.UnsignedShort4444Type = UnsignedShort4444Type;
-const UnsignedShort5551Type = 1018;
-exports.UnsignedShort5551Type = UnsignedShort5551Type;
-const UnsignedShort565Type = 1019;
-exports.UnsignedShort565Type = UnsignedShort565Type;
-const UnsignedInt248Type = 1020;
-exports.UnsignedInt248Type = UnsignedInt248Type;
-const AlphaFormat = 1021;
-exports.AlphaFormat = AlphaFormat;
-const RGBFormat = 1022;
-exports.RGBFormat = RGBFormat;
-const RGBAFormat = 1023;
-exports.RGBAFormat = RGBAFormat;
-const LuminanceFormat = 1024;
-exports.LuminanceFormat = LuminanceFormat;
-const LuminanceAlphaFormat = 1025;
-exports.LuminanceAlphaFormat = LuminanceAlphaFormat;
-const RGBEFormat = RGBAFormat;
-exports.RGBEFormat = RGBEFormat;
-const DepthFormat = 1026;
-exports.DepthFormat = DepthFormat;
-const DepthStencilFormat = 1027;
-exports.DepthStencilFormat = DepthStencilFormat;
-const RedFormat = 1028;
-exports.RedFormat = RedFormat;
-const RedIntegerFormat = 1029;
-exports.RedIntegerFormat = RedIntegerFormat;
-const RGFormat = 1030;
-exports.RGFormat = RGFormat;
-const RGIntegerFormat = 1031;
-exports.RGIntegerFormat = RGIntegerFormat;
-const RGBIntegerFormat = 1032;
-exports.RGBIntegerFormat = RGBIntegerFormat;
-const RGBAIntegerFormat = 1033;
-exports.RGBAIntegerFormat = RGBAIntegerFormat;
-const RGB_S3TC_DXT1_Format = 33776;
-exports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;
-const RGBA_S3TC_DXT1_Format = 33777;
-exports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;
-const RGBA_S3TC_DXT3_Format = 33778;
-exports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;
-const RGBA_S3TC_DXT5_Format = 33779;
-exports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;
-const RGB_PVRTC_4BPPV1_Format = 35840;
-exports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;
-const RGB_PVRTC_2BPPV1_Format = 35841;
-exports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;
-const RGBA_PVRTC_4BPPV1_Format = 35842;
-exports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;
-const RGBA_PVRTC_2BPPV1_Format = 35843;
-exports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;
-const RGB_ETC1_Format = 36196;
-exports.RGB_ETC1_Format = RGB_ETC1_Format;
-const RGB_ETC2_Format = 37492;
-exports.RGB_ETC2_Format = RGB_ETC2_Format;
-const RGBA_ETC2_EAC_Format = 37496;
-exports.RGBA_ETC2_EAC_Format = RGBA_ETC2_EAC_Format;
-const RGBA_ASTC_4x4_Format = 37808;
-exports.RGBA_ASTC_4x4_Format = RGBA_ASTC_4x4_Format;
-const RGBA_ASTC_5x4_Format = 37809;
-exports.RGBA_ASTC_5x4_Format = RGBA_ASTC_5x4_Format;
-const RGBA_ASTC_5x5_Format = 37810;
-exports.RGBA_ASTC_5x5_Format = RGBA_ASTC_5x5_Format;
-const RGBA_ASTC_6x5_Format = 37811;
-exports.RGBA_ASTC_6x5_Format = RGBA_ASTC_6x5_Format;
-const RGBA_ASTC_6x6_Format = 37812;
-exports.RGBA_ASTC_6x6_Format = RGBA_ASTC_6x6_Format;
-const RGBA_ASTC_8x5_Format = 37813;
-exports.RGBA_ASTC_8x5_Format = RGBA_ASTC_8x5_Format;
-const RGBA_ASTC_8x6_Format = 37814;
-exports.RGBA_ASTC_8x6_Format = RGBA_ASTC_8x6_Format;
-const RGBA_ASTC_8x8_Format = 37815;
-exports.RGBA_ASTC_8x8_Format = RGBA_ASTC_8x8_Format;
-const RGBA_ASTC_10x5_Format = 37816;
-exports.RGBA_ASTC_10x5_Format = RGBA_ASTC_10x5_Format;
-const RGBA_ASTC_10x6_Format = 37817;
-exports.RGBA_ASTC_10x6_Format = RGBA_ASTC_10x6_Format;
-const RGBA_ASTC_10x8_Format = 37818;
-exports.RGBA_ASTC_10x8_Format = RGBA_ASTC_10x8_Format;
-const RGBA_ASTC_10x10_Format = 37819;
-exports.RGBA_ASTC_10x10_Format = RGBA_ASTC_10x10_Format;
-const RGBA_ASTC_12x10_Format = 37820;
-exports.RGBA_ASTC_12x10_Format = RGBA_ASTC_12x10_Format;
-const RGBA_ASTC_12x12_Format = 37821;
-exports.RGBA_ASTC_12x12_Format = RGBA_ASTC_12x12_Format;
-const RGBA_BPTC_Format = 36492;
-exports.RGBA_BPTC_Format = RGBA_BPTC_Format;
-const SRGB8_ALPHA8_ASTC_4x4_Format = 37840;
-exports.SRGB8_ALPHA8_ASTC_4x4_Format = SRGB8_ALPHA8_ASTC_4x4_Format;
-const SRGB8_ALPHA8_ASTC_5x4_Format = 37841;
-exports.SRGB8_ALPHA8_ASTC_5x4_Format = SRGB8_ALPHA8_ASTC_5x4_Format;
-const SRGB8_ALPHA8_ASTC_5x5_Format = 37842;
-exports.SRGB8_ALPHA8_ASTC_5x5_Format = SRGB8_ALPHA8_ASTC_5x5_Format;
-const SRGB8_ALPHA8_ASTC_6x5_Format = 37843;
-exports.SRGB8_ALPHA8_ASTC_6x5_Format = SRGB8_ALPHA8_ASTC_6x5_Format;
-const SRGB8_ALPHA8_ASTC_6x6_Format = 37844;
-exports.SRGB8_ALPHA8_ASTC_6x6_Format = SRGB8_ALPHA8_ASTC_6x6_Format;
-const SRGB8_ALPHA8_ASTC_8x5_Format = 37845;
-exports.SRGB8_ALPHA8_ASTC_8x5_Format = SRGB8_ALPHA8_ASTC_8x5_Format;
-const SRGB8_ALPHA8_ASTC_8x6_Format = 37846;
-exports.SRGB8_ALPHA8_ASTC_8x6_Format = SRGB8_ALPHA8_ASTC_8x6_Format;
-const SRGB8_ALPHA8_ASTC_8x8_Format = 37847;
-exports.SRGB8_ALPHA8_ASTC_8x8_Format = SRGB8_ALPHA8_ASTC_8x8_Format;
-const SRGB8_ALPHA8_ASTC_10x5_Format = 37848;
-exports.SRGB8_ALPHA8_ASTC_10x5_Format = SRGB8_ALPHA8_ASTC_10x5_Format;
-const SRGB8_ALPHA8_ASTC_10x6_Format = 37849;
-exports.SRGB8_ALPHA8_ASTC_10x6_Format = SRGB8_ALPHA8_ASTC_10x6_Format;
-const SRGB8_ALPHA8_ASTC_10x8_Format = 37850;
-exports.SRGB8_ALPHA8_ASTC_10x8_Format = SRGB8_ALPHA8_ASTC_10x8_Format;
-const SRGB8_ALPHA8_ASTC_10x10_Format = 37851;
-exports.SRGB8_ALPHA8_ASTC_10x10_Format = SRGB8_ALPHA8_ASTC_10x10_Format;
-const SRGB8_ALPHA8_ASTC_12x10_Format = 37852;
-exports.SRGB8_ALPHA8_ASTC_12x10_Format = SRGB8_ALPHA8_ASTC_12x10_Format;
-const SRGB8_ALPHA8_ASTC_12x12_Format = 37853;
-exports.SRGB8_ALPHA8_ASTC_12x12_Format = SRGB8_ALPHA8_ASTC_12x12_Format;
-const LoopOnce = 2200;
-exports.LoopOnce = LoopOnce;
-const LoopRepeat = 2201;
-exports.LoopRepeat = LoopRepeat;
-const LoopPingPong = 2202;
-exports.LoopPingPong = LoopPingPong;
-const InterpolateDiscrete = 2300;
-exports.InterpolateDiscrete = InterpolateDiscrete;
-const InterpolateLinear = 2301;
-exports.InterpolateLinear = InterpolateLinear;
-const InterpolateSmooth = 2302;
-exports.InterpolateSmooth = InterpolateSmooth;
-const ZeroCurvatureEnding = 2400;
-exports.ZeroCurvatureEnding = ZeroCurvatureEnding;
-const ZeroSlopeEnding = 2401;
-exports.ZeroSlopeEnding = ZeroSlopeEnding;
-const WrapAroundEnding = 2402;
-exports.WrapAroundEnding = WrapAroundEnding;
-const NormalAnimationBlendMode = 2500;
-exports.NormalAnimationBlendMode = NormalAnimationBlendMode;
-const AdditiveAnimationBlendMode = 2501;
-exports.AdditiveAnimationBlendMode = AdditiveAnimationBlendMode;
-const TrianglesDrawMode = 0;
-exports.TrianglesDrawMode = TrianglesDrawMode;
-const TriangleStripDrawMode = 1;
-exports.TriangleStripDrawMode = TriangleStripDrawMode;
-const TriangleFanDrawMode = 2;
-exports.TriangleFanDrawMode = TriangleFanDrawMode;
-const LinearEncoding = 3000;
-exports.LinearEncoding = LinearEncoding;
-const sRGBEncoding = 3001;
-exports.sRGBEncoding = sRGBEncoding;
-const GammaEncoding = 3007;
-exports.GammaEncoding = GammaEncoding;
-const RGBEEncoding = 3002;
-exports.RGBEEncoding = RGBEEncoding;
-const LogLuvEncoding = 3003;
-exports.LogLuvEncoding = LogLuvEncoding;
-const RGBM7Encoding = 3004;
-exports.RGBM7Encoding = RGBM7Encoding;
-const RGBM16Encoding = 3005;
-exports.RGBM16Encoding = RGBM16Encoding;
-const RGBDEncoding = 3006;
-exports.RGBDEncoding = RGBDEncoding;
-const BasicDepthPacking = 3200;
-exports.BasicDepthPacking = BasicDepthPacking;
-const RGBADepthPacking = 3201;
-exports.RGBADepthPacking = RGBADepthPacking;
-const TangentSpaceNormalMap = 0;
-exports.TangentSpaceNormalMap = TangentSpaceNormalMap;
-const ObjectSpaceNormalMap = 1;
-exports.ObjectSpaceNormalMap = ObjectSpaceNormalMap;
-const ZeroStencilOp = 0;
-exports.ZeroStencilOp = ZeroStencilOp;
-const KeepStencilOp = 7680;
-exports.KeepStencilOp = KeepStencilOp;
-const ReplaceStencilOp = 7681;
-exports.ReplaceStencilOp = ReplaceStencilOp;
-const IncrementStencilOp = 7682;
-exports.IncrementStencilOp = IncrementStencilOp;
-const DecrementStencilOp = 7683;
-exports.DecrementStencilOp = DecrementStencilOp;
-const IncrementWrapStencilOp = 34055;
-exports.IncrementWrapStencilOp = IncrementWrapStencilOp;
-const DecrementWrapStencilOp = 34056;
-exports.DecrementWrapStencilOp = DecrementWrapStencilOp;
-const InvertStencilOp = 5386;
-exports.InvertStencilOp = InvertStencilOp;
-const NeverStencilFunc = 512;
-exports.NeverStencilFunc = NeverStencilFunc;
-const LessStencilFunc = 513;
-exports.LessStencilFunc = LessStencilFunc;
-const EqualStencilFunc = 514;
-exports.EqualStencilFunc = EqualStencilFunc;
-const LessEqualStencilFunc = 515;
-exports.LessEqualStencilFunc = LessEqualStencilFunc;
-const GreaterStencilFunc = 516;
-exports.GreaterStencilFunc = GreaterStencilFunc;
-const NotEqualStencilFunc = 517;
-exports.NotEqualStencilFunc = NotEqualStencilFunc;
-const GreaterEqualStencilFunc = 518;
-exports.GreaterEqualStencilFunc = GreaterEqualStencilFunc;
-const AlwaysStencilFunc = 519;
-exports.AlwaysStencilFunc = AlwaysStencilFunc;
-const StaticDrawUsage = 35044;
-exports.StaticDrawUsage = StaticDrawUsage;
-const DynamicDrawUsage = 35048;
-exports.DynamicDrawUsage = DynamicDrawUsage;
-const StreamDrawUsage = 35040;
-exports.StreamDrawUsage = StreamDrawUsage;
-const StaticReadUsage = 35045;
-exports.StaticReadUsage = StaticReadUsage;
-const DynamicReadUsage = 35049;
-exports.DynamicReadUsage = DynamicReadUsage;
-const StreamReadUsage = 35041;
-exports.StreamReadUsage = StreamReadUsage;
-const StaticCopyUsage = 35046;
-exports.StaticCopyUsage = StaticCopyUsage;
-const DynamicCopyUsage = 35050;
-exports.DynamicCopyUsage = DynamicCopyUsage;
-const StreamCopyUsage = 35042;
-exports.StreamCopyUsage = StreamCopyUsage;
-const GLSL1 = '100';
-exports.GLSL1 = GLSL1;
-const GLSL3 = '300 es';
-/**
- * https://github.com/mrdoob/eventdispatcher.js/
- */
-
-exports.GLSL3 = GLSL3;
-
-function EventDispatcher() {}
-
-Object.assign(EventDispatcher.prototype, {
-  addEventListener: function (type, listener) {
-    if (this._listeners === undefined) this._listeners = {};
-    const listeners = this._listeners;
-
-    if (listeners[type] === undefined) {
-      listeners[type] = [];
-    }
-
-    if (listeners[type].indexOf(listener) === -1) {
-      listeners[type].push(listener);
-    }
-  },
-  hasEventListener: function (type, listener) {
-    if (this._listeners === undefined) return false;
-    const listeners = this._listeners;
-    return listeners[type] !== undefined && listeners[type].indexOf(listener) !== -1;
-  },
-  removeEventListener: function (type, listener) {
-    if (this._listeners === undefined) return;
-    const listeners = this._listeners;
-    const listenerArray = listeners[type];
-
-    if (listenerArray !== undefined) {
-      const index = listenerArray.indexOf(listener);
-
-      if (index !== -1) {
-        listenerArray.splice(index, 1);
-      }
-    }
-  },
-  dispatchEvent: function (event) {
-    if (this._listeners === undefined) return;
-    const listeners = this._listeners;
-    const listenerArray = listeners[event.type];
-
-    if (listenerArray !== undefined) {
-      event.target = this; // Make a copy, in case listeners are removed while iterating.
-
-      const array = listenerArray.slice(0);
-
-      for (let i = 0, l = array.length; i < l; i++) {
-        array[i].call(this, event);
-      }
-    }
-  }
-});
-const _lut = [];
-
-for (let i = 0; i < 256; i++) {
-  _lut[i] = (i < 16 ? '0' : '') + i.toString(16);
-}
-
-let _seed = 1234567;
-const MathUtils = {
-  DEG2RAD: Math.PI / 180,
-  RAD2DEG: 180 / Math.PI,
-  generateUUID: function () {
-    // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
-    const d0 = Math.random() * 0xffffffff | 0;
-    const d1 = Math.random() * 0xffffffff | 0;
-    const d2 = Math.random() * 0xffffffff | 0;
-    const d3 = Math.random() * 0xffffffff | 0;
-    const uuid = _lut[d0 & 0xff] + _lut[d0 >> 8 & 0xff] + _lut[d0 >> 16 & 0xff] + _lut[d0 >> 24 & 0xff] + '-' + _lut[d1 & 0xff] + _lut[d1 >> 8 & 0xff] + '-' + _lut[d1 >> 16 & 0x0f | 0x40] + _lut[d1 >> 24 & 0xff] + '-' + _lut[d2 & 0x3f | 0x80] + _lut[d2 >> 8 & 0xff] + '-' + _lut[d2 >> 16 & 0xff] + _lut[d2 >> 24 & 0xff] + _lut[d3 & 0xff] + _lut[d3 >> 8 & 0xff] + _lut[d3 >> 16 & 0xff] + _lut[d3 >> 24 & 0xff]; // .toUpperCase() here flattens concatenated strings to save heap memory space.
-
-    return uuid.toUpperCase();
-  },
-  clamp: function (value, min, max) {
-    return Math.max(min, Math.min(max, value));
-  },
-  // compute euclidian modulo of m % n
-  // https://en.wikipedia.org/wiki/Modulo_operation
-  euclideanModulo: function (n, m) {
-    return (n % m + m) % m;
-  },
-  // Linear mapping from range <a1, a2> to range <b1, b2>
-  mapLinear: function (x, a1, a2, b1, b2) {
-    return b1 + (x - a1) * (b2 - b1) / (a2 - a1);
-  },
-  // https://en.wikipedia.org/wiki/Linear_interpolation
-  lerp: function (x, y, t) {
-    return (1 - t) * x + t * y;
-  },
-  // http://www.rorydriscoll.com/2016/03/07/frame-rate-independent-damping-using-lerp/
-  damp: function (x, y, lambda, dt) {
-    return MathUtils.lerp(x, y, 1 - Math.exp(-lambda * dt));
-  },
-  // https://www.desmos.com/calculator/vcsjnyz7x4
-  pingpong: function (x, length = 1) {
-    return length - Math.abs(MathUtils.euclideanModulo(x, length * 2) - length);
-  },
-  // http://en.wikipedia.org/wiki/Smoothstep
-  smoothstep: function (x, min, max) {
-    if (x <= min) return 0;
-    if (x >= max) return 1;
-    x = (x - min) / (max - min);
-    return x * x * (3 - 2 * x);
-  },
-  smootherstep: function (x, min, max) {
-    if (x <= min) return 0;
-    if (x >= max) return 1;
-    x = (x - min) / (max - min);
-    return x * x * x * (x * (x * 6 - 15) + 10);
-  },
-  // Random integer from <low, high> interval
-  randInt: function (low, high) {
-    return low + Math.floor(Math.random() * (high - low + 1));
-  },
-  // Random float from <low, high> interval
-  randFloat: function (low, high) {
-    return low + Math.random() * (high - low);
-  },
-  // Random float from <-range/2, range/2> interval
-  randFloatSpread: function (range) {
-    return range * (0.5 - Math.random());
-  },
-  // Deterministic pseudo-random float in the interval [ 0, 1 ]
-  seededRandom: function (s) {
-    if (s !== undefined) _seed = s % 2147483647; // Park-Miller algorithm
-
-    _seed = _seed * 16807 % 2147483647;
-    return (_seed - 1) / 2147483646;
-  },
-  degToRad: function (degrees) {
-    return degrees * MathUtils.DEG2RAD;
-  },
-  radToDeg: function (radians) {
-    return radians * MathUtils.RAD2DEG;
-  },
-  isPowerOfTwo: function (value) {
-    return (value & value - 1) === 0 && value !== 0;
-  },
-  ceilPowerOfTwo: function (value) {
-    return Math.pow(2, Math.ceil(Math.log(value) / Math.LN2));
-  },
-  floorPowerOfTwo: function (value) {
-    return Math.pow(2, Math.floor(Math.log(value) / Math.LN2));
-  },
-  setQuaternionFromProperEuler: function (q, a, b, c, order) {
-    // Intrinsic Proper Euler Angles - see https://en.wikipedia.org/wiki/Euler_angles
-    // rotations are applied to the axes in the order specified by 'order'
-    // rotation by angle 'a' is applied first, then by angle 'b', then by angle 'c'
-    // angles are in radians
-    const cos = Math.cos;
-    const sin = Math.sin;
-    const c2 = cos(b / 2);
-    const s2 = sin(b / 2);
-    const c13 = cos((a + c) / 2);
-    const s13 = sin((a + c) / 2);
-    const c1_3 = cos((a - c) / 2);
-    const s1_3 = sin((a - c) / 2);
-    const c3_1 = cos((c - a) / 2);
-    const s3_1 = sin((c - a) / 2);
-
-    switch (order) {
-      case 'XYX':
-        q.set(c2 * s13, s2 * c1_3, s2 * s1_3, c2 * c13);
-        break;
-
-      case 'YZY':
-        q.set(s2 * s1_3, c2 * s13, s2 * c1_3, c2 * c13);
-        break;
-
-      case 'ZXZ':
-        q.set(s2 * c1_3, s2 * s1_3, c2 * s13, c2 * c13);
-        break;
-
-      case 'XZX':
-        q.set(c2 * s13, s2 * s3_1, s2 * c3_1, c2 * c13);
-        break;
-
-      case 'YXY':
-        q.set(s2 * c3_1, c2 * s13, s2 * s3_1, c2 * c13);
-        break;
-
-      case 'ZYZ':
-        q.set(s2 * s3_1, s2 * c3_1, c2 * s13, c2 * c13);
-        break;
-
-      default:
-        console.warn('THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: ' + order);
-    }
-  }
-};
-exports.MathUtils = exports.Math = MathUtils;
-
-class Vector2 {
-  constructor(x = 0, y = 0) {
-    this.x = x;
-    this.y = y;
-  }
-
-  get width() {
-    return this.x;
-  }
-
-  set width(value) {
-    this.x = value;
-  }
-
-  get height() {
-    return this.y;
-  }
-
-  set height(value) {
-    this.y = value;
-  }
-
-  set(x, y) {
-    this.x = x;
-    this.y = y;
-    return this;
-  }
-
-  setScalar(scalar) {
-    this.x = scalar;
-    this.y = scalar;
-    return this;
-  }
-
-  setX(x) {
-    this.x = x;
-    return this;
-  }
-
-  setY(y) {
-    this.y = y;
-    return this;
-  }
-
-  setComponent(index, value) {
-    switch (index) {
-      case 0:
-        this.x = value;
-        break;
-
-      case 1:
-        this.y = value;
-        break;
-
-      default:
-        throw new Error('index is out of range: ' + index);
-    }
-
-    return this;
-  }
-
-  getComponent(index) {
-    switch (index) {
-      case 0:
-        return this.x;
-
-      case 1:
-        return this.y;
-
-      default:
-        throw new Error('index is out of range: ' + index);
-    }
-  }
-
-  clone() {
-    return new this.constructor(this.x, this.y);
-  }
-
-  copy(v) {
-    this.x = v.x;
-    this.y = v.y;
-    return this;
-  }
-
-  add(v, w) {
-    if (w !== undefined) {
-      console.warn('THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');
-      return this.addVectors(v, w);
-    }
-
-    this.x += v.x;
-    this.y += v.y;
-    return this;
-  }
-
-  addScalar(s) {
-    this.x += s;
-    this.y += s;
-    return this;
-  }
-
-  addVectors(a, b) {
-    this.x = a.x + b.x;
-    this.y = a.y + b.y;
-    return this;
-  }
-
-  addScaledVector(v, s) {
-    this.x += v.x * s;
-    this.y += v.y * s;
-    return this;
-  }
-
-  sub(v, w) {
-    if (w !== undefined) {
-      console.warn('THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');
-      return this.subVectors(v, w);
-    }
-
-    this.x -= v.x;
-    this.y -= v.y;
-    return this;
-  }
-
-  subScalar(s) {
-    this.x -= s;
-    this.y -= s;
-    return this;
-  }
-
-  subVectors(a, b) {
-    this.x = a.x - b.x;
-    this.y = a.y - b.y;
-    return this;
-  }
-
-  multiply(v) {
-    this.x *= v.x;
-    this.y *= v.y;
-    return this;
-  }
-
-  multiplyScalar(scalar) {
-    this.x *= scalar;
-    this.y *= scalar;
-    return this;
-  }
-
-  divide(v) {
-    this.x /= v.x;
-    this.y /= v.y;
-    return this;
-  }
-
-  divideScalar(scalar) {
-    return this.multiplyScalar(1 / scalar);
-  }
-
-  applyMatrix3(m) {
-    const x = this.x,
-          y = this.y;
-    const e = m.elements;
-    this.x = e[0] * x + e[3] * y + e[6];
-    this.y = e[1] * x + e[4] * y + e[7];
-    return this;
-  }
-
-  min(v) {
-    this.x = Math.min(this.x, v.x);
-    this.y = Math.min(this.y, v.y);
-    return this;
-  }
-
-  max(v) {
-    this.x = Math.max(this.x, v.x);
-    this.y = Math.max(this.y, v.y);
-    return this;
-  }
-
-  clamp(min, max) {
-    // assumes min < max, componentwise
-    this.x = Math.max(min.x, Math.min(max.x, this.x));
-    this.y = Math.max(min.y, Math.min(max.y, this.y));
-    return this;
-  }
-
-  clampScalar(minVal, maxVal) {
-    this.x = Math.max(minVal, Math.min(maxVal, this.x));
-    this.y = Math.max(minVal, Math.min(maxVal, this.y));
-    return this;
-  }
-
-  clampLength(min, max) {
-    const length = this.length();
-    return this.divideScalar(length || 1).multiplyScalar(Math.max(min, Math.min(max, length)));
-  }
-
-  floor() {
-    this.x = Math.floor(this.x);
-    this.y = Math.floor(this.y);
-    return this;
-  }
-
-  ceil() {
-    this.x = Math.ceil(this.x);
-    this.y = Math.ceil(this.y);
-    return this;
-  }
-
-  round() {
-    this.x = Math.round(this.x);
-    this.y = Math.round(this.y);
-    return this;
-  }
-
-  roundToZero() {
-    this.x = this.x < 0 ? Math.ceil(this.x) : Math.floor(this.x);
-    this.y = this.y < 0 ? Math.ceil(this.y) : Math.floor(this.y);
-    return this;
-  }
-
-  negate() {
-    this.x = -this.x;
-    this.y = -this.y;
-    return this;
-  }
-
-  dot(v) {
-    return this.x * v.x + this.y * v.y;
-  }
-
-  cross(v) {
-    return this.x * v.y - this.y * v.x;
-  }
-
-  lengthSq() {
-    return this.x * this.x + this.y * this.y;
-  }
-
-  length() {
-    return Math.sqrt(this.x * this.x + this.y * this.y);
-  }
-
-  manhattanLength() {
-    return Math.abs(this.x) + Math.abs(this.y);
-  }
-
-  normalize() {
-    return this.divideScalar(this.length() || 1);
-  }
-
-  angle() {
-    // computes the angle in radians with respect to the positive x-axis
-    const angle = Math.atan2(-this.y, -this.x) + Math.PI;
-    return angle;
-  }
-
-  distanceTo(v) {
-    return Math.sqrt(this.distanceToSquared(v));
-  }
-
-  distanceToSquared(v) {
-    const dx = this.x - v.x,
-          dy = this.y - v.y;
-    return dx * dx + dy * dy;
-  }
-
-  manhattanDistanceTo(v) {
-    return Math.abs(this.x - v.x) + Math.abs(this.y - v.y);
-  }
-
-  setLength(length) {
-    return this.normalize().multiplyScalar(length);
-  }
-
-  lerp(v, alpha) {
-    this.x += (v.x - this.x) * alpha;
-    this.y += (v.y - this.y) * alpha;
-    return this;
-  }
-
-  lerpVectors(v1, v2, alpha) {
-    this.x = v1.x + (v2.x - v1.x) * alpha;
-    this.y = v1.y + (v2.y - v1.y) * alpha;
-    return this;
-  }
-
-  equals(v) {
-    return v.x === this.x && v.y === this.y;
-  }
-
-  fromArray(array, offset = 0) {
-    this.x = array[offset];
-    this.y = array[offset + 1];
-    return this;
-  }
-
-  toArray(array = [], offset = 0) {
-    array[offset] = this.x;
-    array[offset + 1] = this.y;
-    return array;
-  }
-
-  fromBufferAttribute(attribute, index, offset) {
-    if (offset !== undefined) {
-      console.warn('THREE.Vector2: offset has been removed from .fromBufferAttribute().');
-    }
-
-    this.x = attribute.getX(index);
-    this.y = attribute.getY(index);
-    return this;
-  }
-
-  rotateAround(center, angle) {
-    const c = Math.cos(angle),
-          s = Math.sin(angle);
-    const x = this.x - center.x;
-    const y = this.y - center.y;
-    this.x = x * c - y * s + center.x;
-    this.y = x * s + y * c + center.y;
-    return this;
-  }
-
-  random() {
-    this.x = Math.random();
-    this.y = Math.random();
-    return this;
-  }
-
-}
-
-exports.Vector2 = Vector2;
-Vector2.prototype.isVector2 = true;
-
-class Matrix3 {
-  constructor() {
-    this.elements = [1, 0, 0, 0, 1, 0, 0, 0, 1];
-
-    if (arguments.length > 0) {
-      console.error('THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.');
-    }
-  }
-
-  set(n11, n12, n13, n21, n22, n23, n31, n32, n33) {
-    const te = this.elements;
-    te[0] = n11;
-    te[1] = n21;
-    te[2] = n31;
-    te[3] = n12;
-    te[4] = n22;
-    te[5] = n32;
-    te[6] = n13;
-    te[7] = n23;
-    te[8] = n33;
-    return this;
-  }
-
-  identity() {
-    this.set(1, 0, 0, 0, 1, 0, 0, 0, 1);
-    return this;
-  }
-
-  copy(m) {
-    const te = this.elements;
-    const me = m.elements;
-    te[0] = me[0];
-    te[1] = me[1];
-    te[2] = me[2];
-    te[3] = me[3];
-    te[4] = me[4];
-    te[5] = me[5];
-    te[6] = me[6];
-    te[7] = me[7];
-    te[8] = me[8];
-    return this;
-  }
-
-  extractBasis(xAxis, yAxis, zAxis) {
-    xAxis.setFromMatrix3Column(this, 0);
-    yAxis.setFromMatrix3Column(this, 1);
-    zAxis.setFromMatrix3Column(this, 2);
-    return this;
-  }
-
-  setFromMatrix4(m) {
-    const me = m.elements;
-    this.set(me[0], me[4], me[8], me[1], me[5], me[9], me[2], me[6], me[10]);
-    return this;
-  }
-
-  multiply(m) {
-    return this.multiplyMatrices(this, m);
-  }
-
-  premultiply(m) {
-    return this.multiplyMatrices(m, this);
-  }
-
-  multiplyMatrices(a, b) {
-    const ae = a.elements;
-    const be = b.elements;
-    const te = this.elements;
-    const a11 = ae[0],
-          a12 = ae[3],
-          a13 = ae[6];
-    const a21 = ae[1],
-          a22 = ae[4],
-          a23 = ae[7];
-    const a31 = ae[2],
-          a32 = ae[5],
-          a33 = ae[8];
-    const b11 = be[0],
-          b12 = be[3],
-          b13 = be[6];
-    const b21 = be[1],
-          b22 = be[4],
-          b23 = be[7];
-    const b31 = be[2],
-          b32 = be[5],
-          b33 = be[8];
-    te[0] = a11 * b11 + a12 * b21 + a13 * b31;
-    te[3] = a11 * b12 + a12 * b22 + a13 * b32;
-    te[6] = a11 * b13 + a12 * b23 + a13 * b33;
-    te[1] = a21 * b11 + a22 * b21 + a23 * b31;
-    te[4] = a21 * b12 + a22 * b22 + a23 * b32;
-    te[7] = a21 * b13 + a22 * b23 + a23 * b33;
-    te[2] = a31 * b11 + a32 * b21 + a33 * b31;
-    te[5] = a31 * b12 + a32 * b22 + a33 * b32;
-    te[8] = a31 * b13 + a32 * b23 + a33 * b33;
-    return this;
-  }
-
-  multiplyScalar(s) {
-    const te = this.elements;
-    te[0] *= s;
-    te[3] *= s;
-    te[6] *= s;
-    te[1] *= s;
-    te[4] *= s;
-    te[7] *= s;
-    te[2] *= s;
-    te[5] *= s;
-    te[8] *= s;
-    return this;
-  }
-
-  determinant() {
-    const te = this.elements;
-    const a = te[0],
-          b = te[1],
-          c = te[2],
-          d = te[3],
-          e = te[4],
-          f = te[5],
-          g = te[6],
-          h = te[7],
-          i = te[8];
-    return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;
-  }
-
-  invert() {
-    const te = this.elements,
-          n11 = te[0],
-          n21 = te[1],
-          n31 = te[2],
-          n12 = te[3],
-          n22 = te[4],
-          n32 = te[5],
-          n13 = te[6],
-          n23 = te[7],
-          n33 = te[8],
-          t11 = n33 * n22 - n32 * n23,
-          t12 = n32 * n13 - n33 * n12,
-          t13 = n23 * n12 - n22 * n13,
-          det = n11 * t11 + n21 * t12 + n31 * t13;
-    if (det === 0) return this.set(0, 0, 0, 0, 0, 0, 0, 0, 0);
-    const detInv = 1 / det;
-    te[0] = t11 * detInv;
-    te[1] = (n31 * n23 - n33 * n21) * detInv;
-    te[2] = (n32 * n21 - n31 * n22) * detInv;
-    te[3] = t12 * detInv;
-    te[4] = (n33 * n11 - n31 * n13) * detInv;
-    te[5] = (n31 * n12 - n32 * n11) * detInv;
-    te[6] = t13 * detInv;
-    te[7] = (n21 * n13 - n23 * n11) * detInv;
-    te[8] = (n22 * n11 - n21 * n12) * detInv;
-    return this;
-  }
-
-  transpose() {
-    let tmp;
-    const m = this.elements;
-    tmp = m[1];
-    m[1] = m[3];
-    m[3] = tmp;
-    tmp = m[2];
-    m[2] = m[6];
-    m[6] = tmp;
-    tmp = m[5];
-    m[5] = m[7];
-    m[7] = tmp;
-    return this;
-  }
-
-  getNormalMatrix(matrix4) {
-    return this.setFromMatrix4(matrix4).invert().transpose();
-  }
-
-  transposeIntoArray(r) {
-    const m = this.elements;
-    r[0] = m[0];
-    r[1] = m[3];
-    r[2] = m[6];
-    r[3] = m[1];
-    r[4] = m[4];
-    r[5] = m[7];
-    r[6] = m[2];
-    r[7] = m[5];
-    r[8] = m[8];
-    return this;
-  }
-
-  setUvTransform(tx, ty, sx, sy, rotation, cx, cy) {
-    const c = Math.cos(rotation);
-    const s = Math.sin(rotation);
-    this.set(sx * c, sx * s, -sx * (c * cx + s * cy) + cx + tx, -sy * s, sy * c, -sy * (-s * cx + c * cy) + cy + ty, 0, 0, 1);
-    return this;
-  }
-
-  scale(sx, sy) {
-    const te = this.elements;
-    te[0] *= sx;
-    te[3] *= sx;
-    te[6] *= sx;
-    te[1] *= sy;
-    te[4] *= sy;
-    te[7] *= sy;
-    return this;
-  }
-
-  rotate(theta) {
-    const c = Math.cos(theta);
-    const s = Math.sin(theta);
-    const te = this.elements;
-    const a11 = te[0],
-          a12 = te[3],
-          a13 = te[6];
-    const a21 = te[1],
-          a22 = te[4],
-          a23 = te[7];
-    te[0] = c * a11 + s * a21;
-    te[3] = c * a12 + s * a22;
-    te[6] = c * a13 + s * a23;
-    te[1] = -s * a11 + c * a21;
-    te[4] = -s * a12 + c * a22;
-    te[7] = -s * a13 + c * a23;
-    return this;
-  }
-
-  translate(tx, ty) {
-    const te = this.elements;
-    te[0] += tx * te[2];
-    te[3] += tx * te[5];
-    te[6] += tx * te[8];
-    te[1] += ty * te[2];
-    te[4] += ty * te[5];
-    te[7] += ty * te[8];
-    return this;
-  }
-
-  equals(matrix) {
-    const te = this.elements;
-    const me = matrix.elements;
-
-    for (let i = 0; i < 9; i++) {
-      if (te[i] !== me[i]) return false;
-    }
-
-    return true;
-  }
-
-  fromArray(array, offset = 0) {
-    for (let i = 0; i < 9; i++) {
-      this.elements[i] = array[i + offset];
-    }
-
-    return this;
-  }
-
-  toArray(array = [], offset = 0) {
-    const te = this.elements;
-    array[offset] = te[0];
-    array[offset + 1] = te[1];
-    array[offset + 2] = te[2];
-    array[offset + 3] = te[3];
-    array[offset + 4] = te[4];
-    array[offset + 5] = te[5];
-    array[offset + 6] = te[6];
-    array[offset + 7] = te[7];
-    array[offset + 8] = te[8];
-    return array;
-  }
-
-  clone() {
-    return new this.constructor().fromArray(this.elements);
-  }
-
-}
-
-exports.Matrix3 = Matrix3;
-Matrix3.prototype.isMatrix3 = true;
-
-let _canvas;
-
-const ImageUtils = {
-  getDataURL: function (image) {
-    if (/^data:/i.test(image.src)) {
-      return image.src;
-    }
-
-    if (typeof HTMLCanvasElement == 'undefined') {
-      return image.src;
-    }
-
-    let canvas;
-
-    if (image instanceof HTMLCanvasElement) {
-      canvas = image;
-    } else {
-      if (_canvas === undefined) _canvas = document.createElementNS('http://www.w3.org/1999/xhtml', 'canvas');
-      _canvas.width = image.width;
-      _canvas.height = image.height;
-
-      const context = _canvas.getContext('2d');
-
-      if (image instanceof ImageData) {
-        context.putImageData(image, 0, 0);
-      } else {
-        context.drawImage(image, 0, 0, image.width, image.height);
-      }
-
-      canvas = _canvas;
-    }
-
-    if (canvas.width > 2048 || canvas.height > 2048) {
-      return canvas.toDataURL('image/jpeg', 0.6);
-    } else {
-      return canvas.toDataURL('image/png');
-    }
-  }
-};
-exports.ImageUtils = ImageUtils;
-let textureId = 0;
-
-class Texture extends EventDispatcher {
-  constructor(image = Texture.DEFAULT_IMAGE, mapping = Texture.DEFAULT_MAPPING, wrapS = ClampToEdgeWrapping, wrapT = ClampToEdgeWrapping, magFilter = LinearFilter, minFilter = LinearMipmapLinearFilter, format = RGBAFormat, type = UnsignedByteType, anisotropy = 1, encoding = LinearEncoding) {
-    super();
-    Object.defineProperty(this, 'id', {
-      value: textureId++
-    });
-    this.uuid = MathUtils.generateUUID();
-    this.name = '';
-    this.image = image;
-    this.mipmaps = [];
-    this.mapping = mapping;
-    this.wrapS = wrapS;
-    this.wrapT = wrapT;
-    this.magFilter = magFilter;
-    this.minFilter = minFilter;
-    this.anisotropy = anisotropy;
-    this.format = format;
-    this.internalFormat = null;
-    this.type = type;
-    this.offset = new Vector2(0, 0);
-    this.repeat = new Vector2(1, 1);
-    this.center = new Vector2(0, 0);
-    this.rotation = 0;
-    this.matrixAutoUpdate = true;
-    this.matrix = new Matrix3();
-    this.generateMipmaps = true;
-    this.premultiplyAlpha = false;
-    this.flipY = true;
-    this.unpackAlignment = 4; // valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)
-    // Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
-    //
-    // Also changing the encoding after already used by a Material will not automatically make the Material
-    // update. You need to explicitly call Material.needsUpdate to trigger it to recompile.
-
-    this.encoding = encoding;
-    this.version = 0;
-    this.onUpdate = null;
-  }
-
-  updateMatrix() {
-    this.matrix.setUvTransform(this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y);
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-  copy(source) {
-    this.name = source.name;
-    this.image = source.image;
-    this.mipmaps = source.mipmaps.slice(0);
-    this.mapping = source.mapping;
-    this.wrapS = source.wrapS;
-    this.wrapT = source.wrapT;
-    this.magFilter = source.magFilter;
-    this.minFilter = source.minFilter;
-    this.anisotropy = source.anisotropy;
-    this.format = source.format;
-    this.internalFormat = source.internalFormat;
-    this.type = source.type;
-    this.offset.copy(source.offset);
-    this.repeat.copy(source.repeat);
-    this.center.copy(source.center);
-    this.rotation = source.rotation;
-    this.matrixAutoUpdate = source.matrixAutoUpdate;
-    this.matrix.copy(source.matrix);
-    this.generateMipmaps = source.generateMipmaps;
-    this.premultiplyAlpha = source.premultiplyAlpha;
-    this.flipY = source.flipY;
-    this.unpackAlignment = source.unpackAlignment;
-    this.encoding = source.encoding;
-    return this;
-  }
-
-  toJSON(meta) {
-    const isRootObject = meta === undefined || typeof meta === 'string';
-
-    if (!isRootObject && meta.textures[this.uuid] !== undefined) {
-      return meta.textures[this.uuid];
-    }
-
-    const output = {
-      metadata: {
-        version: 4.5,
-        type: 'Texture',
-        generator: 'Texture.toJSON'
-      },
-      uuid: this.uuid,
-      name: this.name,
-      mapping: this.mapping,
-      repeat: [this.repeat.x, this.repeat.y],
-      offset: [this.offset.x, this.offset.y],
-      center: [this.center.x, this.center.y],
-      rotation: this.rotation,
-      wrap: [this.wrapS, this.wrapT],
-      format: this.format,
-      type: this.type,
-      encoding: this.encoding,
-      minFilter: this.minFilter,
-      magFilter: this.magFilter,
-      anisotropy: this.anisotropy,
-      flipY: this.flipY,
-      premultiplyAlpha: this.premultiplyAlpha,
-      unpackAlignment: this.unpackAlignment
-    };
-
-    if (this.image !== undefined) {
-      // TODO: Move to THREE.Image
-      const image = this.image;
-
-      if (image.uuid === undefined) {
-        image.uuid = MathUtils.generateUUID(); // UGH
-      }
-
-      if (!isRootObject && meta.images[image.uuid] === undefined) {
-        let url;
-
-        if (Array.isArray(image)) {
-          // process array of images e.g. CubeTexture
-          url = [];
-
-          for (let i = 0, l = image.length; i < l; i++) {
-            // check cube texture with data textures
-            if (image[i].isDataTexture) {
-              url.push(serializeImage(image[i].image));
-            } else {
-              url.push(serializeImage(image[i]));
-            }
-          }
-        } else {
-          // process single image
-          url = serializeImage(image);
-        }
-
-        meta.images[image.uuid] = {
-          uuid: image.uuid,
-          url: url
-        };
-      }
-
-      output.image = image.uuid;
-    }
-
-    if (!isRootObject) {
-      meta.textures[this.uuid] = output;
-    }
-
-    return output;
-  }
-
-  dispose() {
-    this.dispatchEvent({
-      type: 'dispose'
-    });
-  }
-
-  transformUv(uv) {
-    if (this.mapping !== UVMapping) return uv;
-    uv.applyMatrix3(this.matrix);
-
-    if (uv.x < 0 || uv.x > 1) {
-      switch (this.wrapS) {
-        case RepeatWrapping:
-          uv.x = uv.x - Math.floor(uv.x);
-          break;
-
-        case ClampToEdgeWrapping:
-          uv.x = uv.x < 0 ? 0 : 1;
-          break;
-
-        case MirroredRepeatWrapping:
-          if (Math.abs(Math.floor(uv.x) % 2) === 1) {
-            uv.x = Math.ceil(uv.x) - uv.x;
-          } else {
-            uv.x = uv.x - Math.floor(uv.x);
-          }
-
-          break;
-      }
-    }
-
-    if (uv.y < 0 || uv.y > 1) {
-      switch (this.wrapT) {
-        case RepeatWrapping:
-          uv.y = uv.y - Math.floor(uv.y);
-          break;
-
-        case ClampToEdgeWrapping:
-          uv.y = uv.y < 0 ? 0 : 1;
-          break;
-
-        case MirroredRepeatWrapping:
-          if (Math.abs(Math.floor(uv.y) % 2) === 1) {
-            uv.y = Math.ceil(uv.y) - uv.y;
-          } else {
-            uv.y = uv.y - Math.floor(uv.y);
-          }
-
-          break;
-      }
-    }
-
-    if (this.flipY) {
-      uv.y = 1 - uv.y;
-    }
-
-    return uv;
-  }
-
-  set needsUpdate(value) {
-    if (value === true) this.version++;
-  }
-
-}
-
-exports.Texture = Texture;
-Texture.DEFAULT_IMAGE = undefined;
-Texture.DEFAULT_MAPPING = UVMapping;
-Texture.prototype.isTexture = true;
-
-function serializeImage(image) {
-  if (typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement || typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap) {
-    // default images
-    return ImageUtils.getDataURL(image);
-  } else {
-    if (image.data) {
-      // images of DataTexture
-      return {
-        data: Array.prototype.slice.call(image.data),
-        width: image.width,
-        height: image.height,
-        type: image.data.constructor.name
-      };
-    } else {
-      console.warn('THREE.Texture: Unable to serialize Texture.');
-      return {};
-    }
-  }
-}
-
-class Vector4 {
-  constructor(x = 0, y = 0, z = 0, w = 1) {
-    this.x = x;
-    this.y = y;
-    this.z = z;
-    this.w = w;
-  }
-
-  get width() {
-    return this.z;
-  }
-
-  set width(value) {
-    this.z = value;
-  }
-
-  get height() {
-    return this.w;
-  }
-
-  set height(value) {
-    this.w = value;
-  }
-
-  set(x, y, z, w) {
-    this.x = x;
-    this.y = y;
-    this.z = z;
-    this.w = w;
-    return this;
-  }
-
-  setScalar(scalar) {
-    this.x = scalar;
-    this.y = scalar;
-    this.z = scalar;
-    this.w = scalar;
-    return this;
-  }
-
-  setX(x) {
-    this.x = x;
-    return this;
-  }
-
-  setY(y) {
-    this.y = y;
-    return this;
-  }
-
-  setZ(z) {
-    this.z = z;
-    return this;
-  }
-
-  setW(w) {
-    this.w = w;
-    return this;
-  }
-
-  setComponent(index, value) {
-    switch (index) {
-      case 0:
-        this.x = value;
-        break;
-
-      case 1:
-        this.y = value;
-        break;
-
-      case 2:
-        this.z = value;
-        break;
-
-      case 3:
-        this.w = value;
-        break;
-
-      default:
-        throw new Error('index is out of range: ' + index);
-    }
-
-    return this;
-  }
-
-  getComponent(index) {
-    switch (index) {
-      case 0:
-        return this.x;
-
-      case 1:
-        return this.y;
-
-      case 2:
-        return this.z;
-
-      case 3:
-        return this.w;
-
-      default:
-        throw new Error('index is out of range: ' + index);
-    }
-  }
-
-  clone() {
-    return new this.constructor(this.x, this.y, this.z, this.w);
-  }
-
-  copy(v) {
-    this.x = v.x;
-    this.y = v.y;
-    this.z = v.z;
-    this.w = v.w !== undefined ? v.w : 1;
-    return this;
-  }
-
-  add(v, w) {
-    if (w !== undefined) {
-      console.warn('THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');
-      return this.addVectors(v, w);
-    }
-
-    this.x += v.x;
-    this.y += v.y;
-    this.z += v.z;
-    this.w += v.w;
-    return this;
-  }
-
-  addScalar(s) {
-    this.x += s;
-    this.y += s;
-    this.z += s;
-    this.w += s;
-    return this;
-  }
-
-  addVectors(a, b) {
-    this.x = a.x + b.x;
-    this.y = a.y + b.y;
-    this.z = a.z + b.z;
-    this.w = a.w + b.w;
-    return this;
-  }
-
-  addScaledVector(v, s) {
-    this.x += v.x * s;
-    this.y += v.y * s;
-    this.z += v.z * s;
-    this.w += v.w * s;
-    return this;
-  }
-
-  sub(v, w) {
-    if (w !== undefined) {
-      console.warn('THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');
-      return this.subVectors(v, w);
-    }
-
-    this.x -= v.x;
-    this.y -= v.y;
-    this.z -= v.z;
-    this.w -= v.w;
-    return this;
-  }
-
-  subScalar(s) {
-    this.x -= s;
-    this.y -= s;
-    this.z -= s;
-    this.w -= s;
-    return this;
-  }
-
-  subVectors(a, b) {
-    this.x = a.x - b.x;
-    this.y = a.y - b.y;
-    this.z = a.z - b.z;
-    this.w = a.w - b.w;
-    return this;
-  }
-
-  multiply(v) {
-    this.x *= v.x;
-    this.y *= v.y;
-    this.z *= v.z;
-    this.w *= v.w;
-    return this;
-  }
-
-  multiplyScalar(scalar) {
-    this.x *= scalar;
-    this.y *= scalar;
-    this.z *= scalar;
-    this.w *= scalar;
-    return this;
-  }
-
-  applyMatrix4(m) {
-    const x = this.x,
-          y = this.y,
-          z = this.z,
-          w = this.w;
-    const e = m.elements;
-    this.x = e[0] * x + e[4] * y + e[8] * z + e[12] * w;
-    this.y = e[1] * x + e[5] * y + e[9] * z + e[13] * w;
-    this.z = e[2] * x + e[6] * y + e[10] * z + e[14] * w;
-    this.w = e[3] * x + e[7] * y + e[11] * z + e[15] * w;
-    return this;
-  }
-
-  divideScalar(scalar) {
-    return this.multiplyScalar(1 / scalar);
-  }
-
-  setAxisAngleFromQuaternion(q) {
-    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm
-    // q is assumed to be normalized
-    this.w = 2 * Math.acos(q.w);
-    const s = Math.sqrt(1 - q.w * q.w);
-
-    if (s < 0.0001) {
-      this.x = 1;
-      this.y = 0;
-      this.z = 0;
-    } else {
-      this.x = q.x / s;
-      this.y = q.y / s;
-      this.z = q.z / s;
-    }
-
-    return this;
-  }
-
-  setAxisAngleFromRotationMatrix(m) {
-    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm
-    // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-    let angle, x, y, z; // variables for result
-
-    const epsilon = 0.01,
-          // margin to allow for rounding errors
-    epsilon2 = 0.1,
-          // margin to distinguish between 0 and 180 degrees
-    te = m.elements,
-          m11 = te[0],
-          m12 = te[4],
-          m13 = te[8],
-          m21 = te[1],
-          m22 = te[5],
-          m23 = te[9],
-          m31 = te[2],
-          m32 = te[6],
-          m33 = te[10];
-
-    if (Math.abs(m12 - m21) < epsilon && Math.abs(m13 - m31) < epsilon && Math.abs(m23 - m32) < epsilon) {
-      // singularity found
-      // first check for identity matrix which must have +1 for all terms
-      // in leading diagonal and zero in other terms
-      if (Math.abs(m12 + m21) < epsilon2 && Math.abs(m13 + m31) < epsilon2 && Math.abs(m23 + m32) < epsilon2 && Math.abs(m11 + m22 + m33 - 3) < epsilon2) {
-        // this singularity is identity matrix so angle = 0
-        this.set(1, 0, 0, 0);
-        return this; // zero angle, arbitrary axis
-      } // otherwise this singularity is angle = 180
-
-
-      angle = Math.PI;
-      const xx = (m11 + 1) / 2;
-      const yy = (m22 + 1) / 2;
-      const zz = (m33 + 1) / 2;
-      const xy = (m12 + m21) / 4;
-      const xz = (m13 + m31) / 4;
-      const yz = (m23 + m32) / 4;
-
-      if (xx > yy && xx > zz) {
-        // m11 is the largest diagonal term
-        if (xx < epsilon) {
-          x = 0;
-          y = 0.707106781;
-          z = 0.707106781;
-        } else {
-          x = Math.sqrt(xx);
-          y = xy / x;
-          z = xz / x;
-        }
-      } else if (yy > zz) {
-        // m22 is the largest diagonal term
-        if (yy < epsilon) {
-          x = 0.707106781;
-          y = 0;
-          z = 0.707106781;
-        } else {
-          y = Math.sqrt(yy);
-          x = xy / y;
-          z = yz / y;
-        }
-      } else {
-        // m33 is the largest diagonal term so base result on this
-        if (zz < epsilon) {
-          x = 0.707106781;
-          y = 0.707106781;
-          z = 0;
-        } else {
-          z = Math.sqrt(zz);
-          x = xz / z;
-          y = yz / z;
-        }
-      }
-
-      this.set(x, y, z, angle);
-      return this; // return 180 deg rotation
-    } // as we have reached here there are no singularities so we can handle normally
-
-
-    let s = Math.sqrt((m32 - m23) * (m32 - m23) + (m13 - m31) * (m13 - m31) + (m21 - m12) * (m21 - m12)); // used to normalize
-
-    if (Math.abs(s) < 0.001) s = 1; // prevent divide by zero, should not happen if matrix is orthogonal and should be
-    // caught by singularity test above, but I've left it in just in case
-
-    this.x = (m32 - m23) / s;
-    this.y = (m13 - m31) / s;
-    this.z = (m21 - m12) / s;
-    this.w = Math.acos((m11 + m22 + m33 - 1) / 2);
-    return this;
-  }
-
-  min(v) {
-    this.x = Math.min(this.x, v.x);
-    this.y = Math.min(this.y, v.y);
-    this.z = Math.min(this.z, v.z);
-    this.w = Math.min(this.w, v.w);
-    return this;
-  }
-
-  max(v) {
-    this.x = Math.max(this.x, v.x);
-    this.y = Math.max(this.y, v.y);
-    this.z = Math.max(this.z, v.z);
-    this.w = Math.max(this.w, v.w);
-    return this;
-  }
-
-  clamp(min, max) {
-    // assumes min < max, componentwise
-    this.x = Math.max(min.x, Math.min(max.x, this.x));
-    this.y = Math.max(min.y, Math.min(max.y, this.y));
-    this.z = Math.max(min.z, Math.min(max.z, this.z));
-    this.w = Math.max(min.w, Math.min(max.w, this.w));
-    return this;
-  }
-
-  clampScalar(minVal, maxVal) {
-    this.x = Math.max(minVal, Math.min(maxVal, this.x));
-    this.y = Math.max(minVal, Math.min(maxVal, this.y));
-    this.z = Math.max(minVal, Math.min(maxVal, this.z));
-    this.w = Math.max(minVal, Math.min(maxVal, this.w));
-    return this;
-  }
-
-  clampLength(min, max) {
-    const length = this.length();
-    return this.divideScalar(length || 1).multiplyScalar(Math.max(min, Math.min(max, length)));
-  }
-
-  floor() {
-    this.x = Math.floor(this.x);
-    this.y = Math.floor(this.y);
-    this.z = Math.floor(this.z);
-    this.w = Math.floor(this.w);
-    return this;
-  }
-
-  ceil() {
-    this.x = Math.ceil(this.x);
-    this.y = Math.ceil(this.y);
-    this.z = Math.ceil(this.z);
-    this.w = Math.ceil(this.w);
-    return this;
-  }
-
-  round() {
-    this.x = Math.round(this.x);
-    this.y = Math.round(this.y);
-    this.z = Math.round(this.z);
-    this.w = Math.round(this.w);
-    return this;
-  }
-
-  roundToZero() {
-    this.x = this.x < 0 ? Math.ceil(this.x) : Math.floor(this.x);
-    this.y = this.y < 0 ? Math.ceil(this.y) : Math.floor(this.y);
-    this.z = this.z < 0 ? Math.ceil(this.z) : Math.floor(this.z);
-    this.w = this.w < 0 ? Math.ceil(this.w) : Math.floor(this.w);
-    return this;
-  }
-
-  negate() {
-    this.x = -this.x;
-    this.y = -this.y;
-    this.z = -this.z;
-    this.w = -this.w;
-    return this;
-  }
-
-  dot(v) {
-    return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;
-  }
-
-  lengthSq() {
-    return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;
-  }
-
-  length() {
-    return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w);
-  }
-
-  manhattanLength() {
-    return Math.abs(this.x) + Math.abs(this.y) + Math.abs(this.z) + Math.abs(this.w);
-  }
-
-  normalize() {
-    return this.divideScalar(this.length() || 1);
-  }
-
-  setLength(length) {
-    return this.normalize().multiplyScalar(length);
-  }
-
-  lerp(v, alpha) {
-    this.x += (v.x - this.x) * alpha;
-    this.y += (v.y - this.y) * alpha;
-    this.z += (v.z - this.z) * alpha;
-    this.w += (v.w - this.w) * alpha;
-    return this;
-  }
-
-  lerpVectors(v1, v2, alpha) {
-    this.x = v1.x + (v2.x - v1.x) * alpha;
-    this.y = v1.y + (v2.y - v1.y) * alpha;
-    this.z = v1.z + (v2.z - v1.z) * alpha;
-    this.w = v1.w + (v2.w - v1.w) * alpha;
-    return this;
-  }
-
-  equals(v) {
-    return v.x === this.x && v.y === this.y && v.z === this.z && v.w === this.w;
-  }
-
-  fromArray(array, offset = 0) {
-    this.x = array[offset];
-    this.y = array[offset + 1];
-    this.z = array[offset + 2];
-    this.w = array[offset + 3];
-    return this;
-  }
-
-  toArray(array = [], offset = 0) {
-    array[offset] = this.x;
-    array[offset + 1] = this.y;
-    array[offset + 2] = this.z;
-    array[offset + 3] = this.w;
-    return array;
-  }
-
-  fromBufferAttribute(attribute, index, offset) {
-    if (offset !== undefined) {
-      console.warn('THREE.Vector4: offset has been removed from .fromBufferAttribute().');
-    }
-
-    this.x = attribute.getX(index);
-    this.y = attribute.getY(index);
-    this.z = attribute.getZ(index);
-    this.w = attribute.getW(index);
-    return this;
-  }
-
-  random() {
-    this.x = Math.random();
-    this.y = Math.random();
-    this.z = Math.random();
-    this.w = Math.random();
-    return this;
-  }
-
-}
-
-exports.Vector4 = Vector4;
-Vector4.prototype.isVector4 = true;
-/*
- In options, we can specify:
- * Texture parameters for an auto-generated target texture
- * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
-*/
-
-class WebGLRenderTarget extends EventDispatcher {
-  constructor(width, height, options) {
-    super();
-    this.width = width;
-    this.height = height;
-    this.depth = 1;
-    this.scissor = new Vector4(0, 0, width, height);
-    this.scissorTest = false;
-    this.viewport = new Vector4(0, 0, width, height);
-    options = options || {};
-    this.texture = new Texture(undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding);
-    this.texture.image = {};
-    this.texture.image.width = width;
-    this.texture.image.height = height;
-    this.texture.image.depth = 1;
-    this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
-    this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;
-    this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
-    this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : false;
-    this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;
-  }
-
-  setTexture(texture) {
-    texture.image = {
-      width: this.width,
-      height: this.height,
-      depth: this.depth
-    };
-    this.texture = texture;
-  }
-
-  setSize(width, height, depth = 1) {
-    if (this.width !== width || this.height !== height || this.depth !== depth) {
-      this.width = width;
-      this.height = height;
-      this.depth = depth;
-      this.texture.image.width = width;
-      this.texture.image.height = height;
-      this.texture.image.depth = depth;
-      this.dispose();
-    }
-
-    this.viewport.set(0, 0, width, height);
-    this.scissor.set(0, 0, width, height);
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-  copy(source) {
-    this.width = source.width;
-    this.height = source.height;
-    this.depth = source.depth;
-    this.viewport.copy(source.viewport);
-    this.texture = source.texture.clone();
-    this.depthBuffer = source.depthBuffer;
-    this.stencilBuffer = source.stencilBuffer;
-    this.depthTexture = source.depthTexture;
-    return this;
-  }
-
-  dispose() {
-    this.dispatchEvent({
-      type: 'dispose'
-    });
-  }
-
-}
-
-exports.WebGLRenderTarget = WebGLRenderTarget;
-WebGLRenderTarget.prototype.isWebGLRenderTarget = true;
-
-class WebGLMultisampleRenderTarget extends WebGLRenderTarget {
-  constructor(width, height, options) {
-    super(width, height, options);
-    this.samples = 4;
-  }
-
-  copy(source) {
-    super.copy.call(this, source);
-    this.samples = source.samples;
-    return this;
-  }
-
-}
-
-exports.WebGLMultisampleRenderTarget = WebGLMultisampleRenderTarget;
-WebGLMultisampleRenderTarget.prototype.isWebGLMultisampleRenderTarget = true;
-
-class Quaternion {
-  constructor(x = 0, y = 0, z = 0, w = 1) {
-    this._x = x;
-    this._y = y;
-    this._z = z;
-    this._w = w;
-  }
-
-  static slerp(qa, qb, qm, t) {
-    return qm.copy(qa).slerp(qb, t);
-  }
-
-  static slerpFlat(dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t) {
-    // fuzz-free, array-based Quaternion SLERP operation
-    let x0 = src0[srcOffset0 + 0],
-        y0 = src0[srcOffset0 + 1],
-        z0 = src0[srcOffset0 + 2],
-        w0 = src0[srcOffset0 + 3];
-    const x1 = src1[srcOffset1 + 0],
-          y1 = src1[srcOffset1 + 1],
-          z1 = src1[srcOffset1 + 2],
-          w1 = src1[srcOffset1 + 3];
-
-    if (t === 0) {
-      dst[dstOffset + 0] = x0;
-      dst[dstOffset + 1] = y0;
-      dst[dstOffset + 2] = z0;
-      dst[dstOffset + 3] = w0;
-      return;
-    }
-
-    if (t === 1) {
-      dst[dstOffset + 0] = x1;
-      dst[dstOffset + 1] = y1;
-      dst[dstOffset + 2] = z1;
-      dst[dstOffset + 3] = w1;
-      return;
-    }
-
-    if (w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1) {
-      let s = 1 - t;
-      const cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,
-            dir = cos >= 0 ? 1 : -1,
-            sqrSin = 1 - cos * cos; // Skip the Slerp for tiny steps to avoid numeric problems:
-
-      if (sqrSin > Number.EPSILON) {
-        const sin = Math.sqrt(sqrSin),
-              len = Math.atan2(sin, cos * dir);
-        s = Math.sin(s * len) / sin;
-        t = Math.sin(t * len) / sin;
-      }
-
-      const tDir = t * dir;
-      x0 = x0 * s + x1 * tDir;
-      y0 = y0 * s + y1 * tDir;
-      z0 = z0 * s + z1 * tDir;
-      w0 = w0 * s + w1 * tDir; // Normalize in case we just did a lerp:
-
-      if (s === 1 - t) {
-        const f = 1 / Math.sqrt(x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0);
-        x0 *= f;
-        y0 *= f;
-        z0 *= f;
-        w0 *= f;
-      }
-    }
-
-    dst[dstOffset] = x0;
-    dst[dstOffset + 1] = y0;
-    dst[dstOffset + 2] = z0;
-    dst[dstOffset + 3] = w0;
-  }
-
-  static multiplyQuaternionsFlat(dst, dstOffset, src0, srcOffset0, src1, srcOffset1) {
-    const x0 = src0[srcOffset0];
-    const y0 = src0[srcOffset0 + 1];
-    const z0 = src0[srcOffset0 + 2];
-    const w0 = src0[srcOffset0 + 3];
-    const x1 = src1[srcOffset1];
-    const y1 = src1[srcOffset1 + 1];
-    const z1 = src1[srcOffset1 + 2];
-    const w1 = src1[srcOffset1 + 3];
-    dst[dstOffset] = x0 * w1 + w0 * x1 + y0 * z1 - z0 * y1;
-    dst[dstOffset + 1] = y0 * w1 + w0 * y1 + z0 * x1 - x0 * z1;
-    dst[dstOffset + 2] = z0 * w1 + w0 * z1 + x0 * y1 - y0 * x1;
-    dst[dstOffset + 3] = w0 * w1 - x0 * x1 - y0 * y1 - z0 * z1;
-    return dst;
-  }
-
-  get x() {
-    return this._x;
-  }
-
-  set x(value) {
-    this._x = value;
-
-    this._onChangeCallback();
-  }
-
-  get y() {
-    return this._y;
-  }
-
-  set y(value) {
-    this._y = value;
-
-    this._onChangeCallback();
-  }
-
-  get z() {
-    return this._z;
-  }
-
-  set z(value) {
-    this._z = value;
-
-    this._onChangeCallback();
-  }
-
-  get w() {
-    return this._w;
-  }
-
-  set w(value) {
-    this._w = value;
-
-    this._onChangeCallback();
-  }
-
-  set(x, y, z, w) {
-    this._x = x;
-    this._y = y;
-    this._z = z;
-    this._w = w;
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  clone() {
-    return new this.constructor(this._x, this._y, this._z, this._w);
-  }
-
-  copy(quaternion) {
-    this._x = quaternion.x;
-    this._y = quaternion.y;
-    this._z = quaternion.z;
-    this._w = quaternion.w;
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  setFromEuler(euler, update) {
-    if (!(euler && euler.isEuler)) {
-      throw new Error('THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.');
-    }
-
-    const x = euler._x,
-          y = euler._y,
-          z = euler._z,
-          order = euler._order; // http://www.mathworks.com/matlabcentral/fileexchange/
-    // 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
-    //	content/SpinCalc.m
-
-    const cos = Math.cos;
-    const sin = Math.sin;
-    const c1 = cos(x / 2);
-    const c2 = cos(y / 2);
-    const c3 = cos(z / 2);
-    const s1 = sin(x / 2);
-    const s2 = sin(y / 2);
-    const s3 = sin(z / 2);
-
-    switch (order) {
-      case 'XYZ':
-        this._x = s1 * c2 * c3 + c1 * s2 * s3;
-        this._y = c1 * s2 * c3 - s1 * c2 * s3;
-        this._z = c1 * c2 * s3 + s1 * s2 * c3;
-        this._w = c1 * c2 * c3 - s1 * s2 * s3;
-        break;
-
-      case 'YXZ':
-        this._x = s1 * c2 * c3 + c1 * s2 * s3;
-        this._y = c1 * s2 * c3 - s1 * c2 * s3;
-        this._z = c1 * c2 * s3 - s1 * s2 * c3;
-        this._w = c1 * c2 * c3 + s1 * s2 * s3;
-        break;
-
-      case 'ZXY':
-        this._x = s1 * c2 * c3 - c1 * s2 * s3;
-        this._y = c1 * s2 * c3 + s1 * c2 * s3;
-        this._z = c1 * c2 * s3 + s1 * s2 * c3;
-        this._w = c1 * c2 * c3 - s1 * s2 * s3;
-        break;
-
-      case 'ZYX':
-        this._x = s1 * c2 * c3 - c1 * s2 * s3;
-        this._y = c1 * s2 * c3 + s1 * c2 * s3;
-        this._z = c1 * c2 * s3 - s1 * s2 * c3;
-        this._w = c1 * c2 * c3 + s1 * s2 * s3;
-        break;
-
-      case 'YZX':
-        this._x = s1 * c2 * c3 + c1 * s2 * s3;
-        this._y = c1 * s2 * c3 + s1 * c2 * s3;
-        this._z = c1 * c2 * s3 - s1 * s2 * c3;
-        this._w = c1 * c2 * c3 - s1 * s2 * s3;
-        break;
-
-      case 'XZY':
-        this._x = s1 * c2 * c3 - c1 * s2 * s3;
-        this._y = c1 * s2 * c3 - s1 * c2 * s3;
-        this._z = c1 * c2 * s3 + s1 * s2 * c3;
-        this._w = c1 * c2 * c3 + s1 * s2 * s3;
-        break;
-
-      default:
-        console.warn('THREE.Quaternion: .setFromEuler() encountered an unknown order: ' + order);
-    }
-
-    if (update !== false) this._onChangeCallback();
-    return this;
-  }
-
-  setFromAxisAngle(axis, angle) {
-    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
-    // assumes axis is normalized
-    const halfAngle = angle / 2,
-          s = Math.sin(halfAngle);
-    this._x = axis.x * s;
-    this._y = axis.y * s;
-    this._z = axis.z * s;
-    this._w = Math.cos(halfAngle);
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  setFromRotationMatrix(m) {
-    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
-    // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-    const te = m.elements,
-          m11 = te[0],
-          m12 = te[4],
-          m13 = te[8],
-          m21 = te[1],
-          m22 = te[5],
-          m23 = te[9],
-          m31 = te[2],
-          m32 = te[6],
-          m33 = te[10],
-          trace = m11 + m22 + m33;
-
-    if (trace > 0) {
-      const s = 0.5 / Math.sqrt(trace + 1.0);
-      this._w = 0.25 / s;
-      this._x = (m32 - m23) * s;
-      this._y = (m13 - m31) * s;
-      this._z = (m21 - m12) * s;
-    } else if (m11 > m22 && m11 > m33) {
-      const s = 2.0 * Math.sqrt(1.0 + m11 - m22 - m33);
-      this._w = (m32 - m23) / s;
-      this._x = 0.25 * s;
-      this._y = (m12 + m21) / s;
-      this._z = (m13 + m31) / s;
-    } else if (m22 > m33) {
-      const s = 2.0 * Math.sqrt(1.0 + m22 - m11 - m33);
-      this._w = (m13 - m31) / s;
-      this._x = (m12 + m21) / s;
-      this._y = 0.25 * s;
-      this._z = (m23 + m32) / s;
-    } else {
-      const s = 2.0 * Math.sqrt(1.0 + m33 - m11 - m22);
-      this._w = (m21 - m12) / s;
-      this._x = (m13 + m31) / s;
-      this._y = (m23 + m32) / s;
-      this._z = 0.25 * s;
-    }
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  setFromUnitVectors(vFrom, vTo) {
-    // assumes direction vectors vFrom and vTo are normalized
-    const EPS = 0.000001;
-    let r = vFrom.dot(vTo) + 1;
-
-    if (r < EPS) {
-      r = 0;
-
-      if (Math.abs(vFrom.x) > Math.abs(vFrom.z)) {
-        this._x = -vFrom.y;
-        this._y = vFrom.x;
-        this._z = 0;
-        this._w = r;
-      } else {
-        this._x = 0;
-        this._y = -vFrom.z;
-        this._z = vFrom.y;
-        this._w = r;
-      }
-    } else {
-      // crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3
-      this._x = vFrom.y * vTo.z - vFrom.z * vTo.y;
-      this._y = vFrom.z * vTo.x - vFrom.x * vTo.z;
-      this._z = vFrom.x * vTo.y - vFrom.y * vTo.x;
-      this._w = r;
-    }
-
-    return this.normalize();
-  }
-
-  angleTo(q) {
-    return 2 * Math.acos(Math.abs(MathUtils.clamp(this.dot(q), -1, 1)));
-  }
-
-  rotateTowards(q, step) {
-    const angle = this.angleTo(q);
-    if (angle === 0) return this;
-    const t = Math.min(1, step / angle);
-    this.slerp(q, t);
-    return this;
-  }
-
-  identity() {
-    return this.set(0, 0, 0, 1);
-  }
-
-  invert() {
-    // quaternion is assumed to have unit length
-    return this.conjugate();
-  }
-
-  conjugate() {
-    this._x *= -1;
-    this._y *= -1;
-    this._z *= -1;
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  dot(v) {
-    return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;
-  }
-
-  lengthSq() {
-    return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;
-  }
-
-  length() {
-    return Math.sqrt(this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w);
-  }
-
-  normalize() {
-    let l = this.length();
-
-    if (l === 0) {
-      this._x = 0;
-      this._y = 0;
-      this._z = 0;
-      this._w = 1;
-    } else {
-      l = 1 / l;
-      this._x = this._x * l;
-      this._y = this._y * l;
-      this._z = this._z * l;
-      this._w = this._w * l;
-    }
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  multiply(q, p) {
-    if (p !== undefined) {
-      console.warn('THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.');
-      return this.multiplyQuaternions(q, p);
-    }
-
-    return this.multiplyQuaternions(this, q);
-  }
-
-  premultiply(q) {
-    return this.multiplyQuaternions(q, this);
-  }
-
-  multiplyQuaternions(a, b) {
-    // from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
-    const qax = a._x,
-          qay = a._y,
-          qaz = a._z,
-          qaw = a._w;
-    const qbx = b._x,
-          qby = b._y,
-          qbz = b._z,
-          qbw = b._w;
-    this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
-    this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
-    this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
-    this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  slerp(qb, t) {
-    if (t === 0) return this;
-    if (t === 1) return this.copy(qb);
-    const x = this._x,
-          y = this._y,
-          z = this._z,
-          w = this._w; // http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/
-
-    let cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;
-
-    if (cosHalfTheta < 0) {
-      this._w = -qb._w;
-      this._x = -qb._x;
-      this._y = -qb._y;
-      this._z = -qb._z;
-      cosHalfTheta = -cosHalfTheta;
-    } else {
-      this.copy(qb);
-    }
-
-    if (cosHalfTheta >= 1.0) {
-      this._w = w;
-      this._x = x;
-      this._y = y;
-      this._z = z;
-      return this;
-    }
-
-    const sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;
-
-    if (sqrSinHalfTheta <= Number.EPSILON) {
-      const s = 1 - t;
-      this._w = s * w + t * this._w;
-      this._x = s * x + t * this._x;
-      this._y = s * y + t * this._y;
-      this._z = s * z + t * this._z;
-      this.normalize();
-
-      this._onChangeCallback();
-
-      return this;
-    }
-
-    const sinHalfTheta = Math.sqrt(sqrSinHalfTheta);
-    const halfTheta = Math.atan2(sinHalfTheta, cosHalfTheta);
-    const ratioA = Math.sin((1 - t) * halfTheta) / sinHalfTheta,
-          ratioB = Math.sin(t * halfTheta) / sinHalfTheta;
-    this._w = w * ratioA + this._w * ratioB;
-    this._x = x * ratioA + this._x * ratioB;
-    this._y = y * ratioA + this._y * ratioB;
-    this._z = z * ratioA + this._z * ratioB;
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  equals(quaternion) {
-    return quaternion._x === this._x && quaternion._y === this._y && quaternion._z === this._z && quaternion._w === this._w;
-  }
-
-  fromArray(array, offset = 0) {
-    this._x = array[offset];
-    this._y = array[offset + 1];
-    this._z = array[offset + 2];
-    this._w = array[offset + 3];
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  toArray(array = [], offset = 0) {
-    array[offset] = this._x;
-    array[offset + 1] = this._y;
-    array[offset + 2] = this._z;
-    array[offset + 3] = this._w;
-    return array;
-  }
-
-  fromBufferAttribute(attribute, index) {
-    this._x = attribute.getX(index);
-    this._y = attribute.getY(index);
-    this._z = attribute.getZ(index);
-    this._w = attribute.getW(index);
-    return this;
-  }
-
-  _onChange(callback) {
-    this._onChangeCallback = callback;
-    return this;
-  }
-
-  _onChangeCallback() {}
-
-}
-
-exports.Quaternion = Quaternion;
-Quaternion.prototype.isQuaternion = true;
-
-class Vector3 {
-  constructor(x = 0, y = 0, z = 0) {
-    this.x = x;
-    this.y = y;
-    this.z = z;
-  }
-
-  set(x, y, z) {
-    if (z === undefined) z = this.z; // sprite.scale.set(x,y)
-
-    this.x = x;
-    this.y = y;
-    this.z = z;
-    return this;
-  }
-
-  setScalar(scalar) {
-    this.x = scalar;
-    this.y = scalar;
-    this.z = scalar;
-    return this;
-  }
-
-  setX(x) {
-    this.x = x;
-    return this;
-  }
-
-  setY(y) {
-    this.y = y;
-    return this;
-  }
-
-  setZ(z) {
-    this.z = z;
-    return this;
-  }
-
-  setComponent(index, value) {
-    switch (index) {
-      case 0:
-        this.x = value;
-        break;
-
-      case 1:
-        this.y = value;
-        break;
-
-      case 2:
-        this.z = value;
-        break;
-
-      default:
-        throw new Error('index is out of range: ' + index);
-    }
-
-    return this;
-  }
-
-  getComponent(index) {
-    switch (index) {
-      case 0:
-        return this.x;
-
-      case 1:
-        return this.y;
-
-      case 2:
-        return this.z;
-
-      default:
-        throw new Error('index is out of range: ' + index);
-    }
-  }
-
-  clone() {
-    return new this.constructor(this.x, this.y, this.z);
-  }
-
-  copy(v) {
-    this.x = v.x;
-    this.y = v.y;
-    this.z = v.z;
-    return this;
-  }
-
-  add(v, w) {
-    if (w !== undefined) {
-      console.warn('THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');
-      return this.addVectors(v, w);
-    }
-
-    this.x += v.x;
-    this.y += v.y;
-    this.z += v.z;
-    return this;
-  }
-
-  addScalar(s) {
-    this.x += s;
-    this.y += s;
-    this.z += s;
-    return this;
-  }
-
-  addVectors(a, b) {
-    this.x = a.x + b.x;
-    this.y = a.y + b.y;
-    this.z = a.z + b.z;
-    return this;
-  }
-
-  addScaledVector(v, s) {
-    this.x += v.x * s;
-    this.y += v.y * s;
-    this.z += v.z * s;
-    return this;
-  }
-
-  sub(v, w) {
-    if (w !== undefined) {
-      console.warn('THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');
-      return this.subVectors(v, w);
-    }
-
-    this.x -= v.x;
-    this.y -= v.y;
-    this.z -= v.z;
-    return this;
-  }
-
-  subScalar(s) {
-    this.x -= s;
-    this.y -= s;
-    this.z -= s;
-    return this;
-  }
-
-  subVectors(a, b) {
-    this.x = a.x - b.x;
-    this.y = a.y - b.y;
-    this.z = a.z - b.z;
-    return this;
-  }
-
-  multiply(v, w) {
-    if (w !== undefined) {
-      console.warn('THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.');
-      return this.multiplyVectors(v, w);
-    }
-
-    this.x *= v.x;
-    this.y *= v.y;
-    this.z *= v.z;
-    return this;
-  }
-
-  multiplyScalar(scalar) {
-    this.x *= scalar;
-    this.y *= scalar;
-    this.z *= scalar;
-    return this;
-  }
-
-  multiplyVectors(a, b) {
-    this.x = a.x * b.x;
-    this.y = a.y * b.y;
-    this.z = a.z * b.z;
-    return this;
-  }
-
-  applyEuler(euler) {
-    if (!(euler && euler.isEuler)) {
-      console.error('THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.');
-    }
-
-    return this.applyQuaternion(_quaternion.setFromEuler(euler));
-  }
-
-  applyAxisAngle(axis, angle) {
-    return this.applyQuaternion(_quaternion.setFromAxisAngle(axis, angle));
-  }
-
-  applyMatrix3(m) {
-    const x = this.x,
-          y = this.y,
-          z = this.z;
-    const e = m.elements;
-    this.x = e[0] * x + e[3] * y + e[6] * z;
-    this.y = e[1] * x + e[4] * y + e[7] * z;
-    this.z = e[2] * x + e[5] * y + e[8] * z;
-    return this;
-  }
-
-  applyNormalMatrix(m) {
-    return this.applyMatrix3(m).normalize();
-  }
-
-  applyMatrix4(m) {
-    const x = this.x,
-          y = this.y,
-          z = this.z;
-    const e = m.elements;
-    const w = 1 / (e[3] * x + e[7] * y + e[11] * z + e[15]);
-    this.x = (e[0] * x + e[4] * y + e[8] * z + e[12]) * w;
-    this.y = (e[1] * x + e[5] * y + e[9] * z + e[13]) * w;
-    this.z = (e[2] * x + e[6] * y + e[10] * z + e[14]) * w;
-    return this;
-  }
-
-  applyQuaternion(q) {
-    const x = this.x,
-          y = this.y,
-          z = this.z;
-    const qx = q.x,
-          qy = q.y,
-          qz = q.z,
-          qw = q.w; // calculate quat * vector
-
-    const ix = qw * x + qy * z - qz * y;
-    const iy = qw * y + qz * x - qx * z;
-    const iz = qw * z + qx * y - qy * x;
-    const iw = -qx * x - qy * y - qz * z; // calculate result * inverse quat
-
-    this.x = ix * qw + iw * -qx + iy * -qz - iz * -qy;
-    this.y = iy * qw + iw * -qy + iz * -qx - ix * -qz;
-    this.z = iz * qw + iw * -qz + ix * -qy - iy * -qx;
-    return this;
-  }
-
-  project(camera) {
-    return this.applyMatrix4(camera.matrixWorldInverse).applyMatrix4(camera.projectionMatrix);
-  }
-
-  unproject(camera) {
-    return this.applyMatrix4(camera.projectionMatrixInverse).applyMatrix4(camera.matrixWorld);
-  }
-
-  transformDirection(m) {
-    // input: THREE.Matrix4 affine matrix
-    // vector interpreted as a direction
-    const x = this.x,
-          y = this.y,
-          z = this.z;
-    const e = m.elements;
-    this.x = e[0] * x + e[4] * y + e[8] * z;
-    this.y = e[1] * x + e[5] * y + e[9] * z;
-    this.z = e[2] * x + e[6] * y + e[10] * z;
-    return this.normalize();
-  }
-
-  divide(v) {
-    this.x /= v.x;
-    this.y /= v.y;
-    this.z /= v.z;
-    return this;
-  }
-
-  divideScalar(scalar) {
-    return this.multiplyScalar(1 / scalar);
-  }
-
-  min(v) {
-    this.x = Math.min(this.x, v.x);
-    this.y = Math.min(this.y, v.y);
-    this.z = Math.min(this.z, v.z);
-    return this;
-  }
-
-  max(v) {
-    this.x = Math.max(this.x, v.x);
-    this.y = Math.max(this.y, v.y);
-    this.z = Math.max(this.z, v.z);
-    return this;
-  }
-
-  clamp(min, max) {
-    // assumes min < max, componentwise
-    this.x = Math.max(min.x, Math.min(max.x, this.x));
-    this.y = Math.max(min.y, Math.min(max.y, this.y));
-    this.z = Math.max(min.z, Math.min(max.z, this.z));
-    return this;
-  }
-
-  clampScalar(minVal, maxVal) {
-    this.x = Math.max(minVal, Math.min(maxVal, this.x));
-    this.y = Math.max(minVal, Math.min(maxVal, this.y));
-    this.z = Math.max(minVal, Math.min(maxVal, this.z));
-    return this;
-  }
-
-  clampLength(min, max) {
-    const length = this.length();
-    return this.divideScalar(length || 1).multiplyScalar(Math.max(min, Math.min(max, length)));
-  }
-
-  floor() {
-    this.x = Math.floor(this.x);
-    this.y = Math.floor(this.y);
-    this.z = Math.floor(this.z);
-    return this;
-  }
-
-  ceil() {
-    this.x = Math.ceil(this.x);
-    this.y = Math.ceil(this.y);
-    this.z = Math.ceil(this.z);
-    return this;
-  }
-
-  round() {
-    this.x = Math.round(this.x);
-    this.y = Math.round(this.y);
-    this.z = Math.round(this.z);
-    return this;
-  }
-
-  roundToZero() {
-    this.x = this.x < 0 ? Math.ceil(this.x) : Math.floor(this.x);
-    this.y = this.y < 0 ? Math.ceil(this.y) : Math.floor(this.y);
-    this.z = this.z < 0 ? Math.ceil(this.z) : Math.floor(this.z);
-    return this;
-  }
-
-  negate() {
-    this.x = -this.x;
-    this.y = -this.y;
-    this.z = -this.z;
-    return this;
-  }
-
-  dot(v) {
-    return this.x * v.x + this.y * v.y + this.z * v.z;
-  } // TODO lengthSquared?
-
-
-  lengthSq() {
-    return this.x * this.x + this.y * this.y + this.z * this.z;
-  }
-
-  length() {
-    return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
-  }
-
-  manhattanLength() {
-    return Math.abs(this.x) + Math.abs(this.y) + Math.abs(this.z);
-  }
-
-  normalize() {
-    return this.divideScalar(this.length() || 1);
-  }
-
-  setLength(length) {
-    return this.normalize().multiplyScalar(length);
-  }
-
-  lerp(v, alpha) {
-    this.x += (v.x - this.x) * alpha;
-    this.y += (v.y - this.y) * alpha;
-    this.z += (v.z - this.z) * alpha;
-    return this;
-  }
-
-  lerpVectors(v1, v2, alpha) {
-    this.x = v1.x + (v2.x - v1.x) * alpha;
-    this.y = v1.y + (v2.y - v1.y) * alpha;
-    this.z = v1.z + (v2.z - v1.z) * alpha;
-    return this;
-  }
-
-  cross(v, w) {
-    if (w !== undefined) {
-      console.warn('THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.');
-      return this.crossVectors(v, w);
-    }
-
-    return this.crossVectors(this, v);
-  }
-
-  crossVectors(a, b) {
-    const ax = a.x,
-          ay = a.y,
-          az = a.z;
-    const bx = b.x,
-          by = b.y,
-          bz = b.z;
-    this.x = ay * bz - az * by;
-    this.y = az * bx - ax * bz;
-    this.z = ax * by - ay * bx;
-    return this;
-  }
-
-  projectOnVector(v) {
-    const denominator = v.lengthSq();
-    if (denominator === 0) return this.set(0, 0, 0);
-    const scalar = v.dot(this) / denominator;
-    return this.copy(v).multiplyScalar(scalar);
-  }
-
-  projectOnPlane(planeNormal) {
-    _vector.copy(this).projectOnVector(planeNormal);
-
-    return this.sub(_vector);
-  }
-
-  reflect(normal) {
-    // reflect incident vector off plane orthogonal to normal
-    // normal is assumed to have unit length
-    return this.sub(_vector.copy(normal).multiplyScalar(2 * this.dot(normal)));
-  }
-
-  angleTo(v) {
-    const denominator = Math.sqrt(this.lengthSq() * v.lengthSq());
-    if (denominator === 0) return Math.PI / 2;
-    const theta = this.dot(v) / denominator; // clamp, to handle numerical problems
-
-    return Math.acos(MathUtils.clamp(theta, -1, 1));
-  }
-
-  distanceTo(v) {
-    return Math.sqrt(this.distanceToSquared(v));
-  }
-
-  distanceToSquared(v) {
-    const dx = this.x - v.x,
-          dy = this.y - v.y,
-          dz = this.z - v.z;
-    return dx * dx + dy * dy + dz * dz;
-  }
-
-  manhattanDistanceTo(v) {
-    return Math.abs(this.x - v.x) + Math.abs(this.y - v.y) + Math.abs(this.z - v.z);
-  }
-
-  setFromSpherical(s) {
-    return this.setFromSphericalCoords(s.radius, s.phi, s.theta);
-  }
-
-  setFromSphericalCoords(radius, phi, theta) {
-    const sinPhiRadius = Math.sin(phi) * radius;
-    this.x = sinPhiRadius * Math.sin(theta);
-    this.y = Math.cos(phi) * radius;
-    this.z = sinPhiRadius * Math.cos(theta);
-    return this;
-  }
-
-  setFromCylindrical(c) {
-    return this.setFromCylindricalCoords(c.radius, c.theta, c.y);
-  }
-
-  setFromCylindricalCoords(radius, theta, y) {
-    this.x = radius * Math.sin(theta);
-    this.y = y;
-    this.z = radius * Math.cos(theta);
-    return this;
-  }
-
-  setFromMatrixPosition(m) {
-    const e = m.elements;
-    this.x = e[12];
-    this.y = e[13];
-    this.z = e[14];
-    return this;
-  }
-
-  setFromMatrixScale(m) {
-    const sx = this.setFromMatrixColumn(m, 0).length();
-    const sy = this.setFromMatrixColumn(m, 1).length();
-    const sz = this.setFromMatrixColumn(m, 2).length();
-    this.x = sx;
-    this.y = sy;
-    this.z = sz;
-    return this;
-  }
-
-  setFromMatrixColumn(m, index) {
-    return this.fromArray(m.elements, index * 4);
-  }
-
-  setFromMatrix3Column(m, index) {
-    return this.fromArray(m.elements, index * 3);
-  }
-
-  equals(v) {
-    return v.x === this.x && v.y === this.y && v.z === this.z;
-  }
-
-  fromArray(array, offset = 0) {
-    this.x = array[offset];
-    this.y = array[offset + 1];
-    this.z = array[offset + 2];
-    return this;
-  }
-
-  toArray(array = [], offset = 0) {
-    array[offset] = this.x;
-    array[offset + 1] = this.y;
-    array[offset + 2] = this.z;
-    return array;
-  }
-
-  fromBufferAttribute(attribute, index, offset) {
-    if (offset !== undefined) {
-      console.warn('THREE.Vector3: offset has been removed from .fromBufferAttribute().');
-    }
-
-    this.x = attribute.getX(index);
-    this.y = attribute.getY(index);
-    this.z = attribute.getZ(index);
-    return this;
-  }
-
-  random() {
-    this.x = Math.random();
-    this.y = Math.random();
-    this.z = Math.random();
-    return this;
-  }
-
-}
-
-exports.Vector3 = Vector3;
-Vector3.prototype.isVector3 = true;
-
-const _vector =
-/*@__PURE__*/
-new Vector3();
-
-const _quaternion =
-/*@__PURE__*/
-new Quaternion();
-
-class Box3 {
-  constructor(min = new Vector3(+Infinity, +Infinity, +Infinity), max = new Vector3(-Infinity, -Infinity, -Infinity)) {
-    this.min = min;
-    this.max = max;
-  }
-
-  set(min, max) {
-    this.min.copy(min);
-    this.max.copy(max);
-    return this;
-  }
-
-  setFromArray(array) {
-    let minX = +Infinity;
-    let minY = +Infinity;
-    let minZ = +Infinity;
-    let maxX = -Infinity;
-    let maxY = -Infinity;
-    let maxZ = -Infinity;
-
-    for (let i = 0, l = array.length; i < l; i += 3) {
-      const x = array[i];
-      const y = array[i + 1];
-      const z = array[i + 2];
-      if (x < minX) minX = x;
-      if (y < minY) minY = y;
-      if (z < minZ) minZ = z;
-      if (x > maxX) maxX = x;
-      if (y > maxY) maxY = y;
-      if (z > maxZ) maxZ = z;
-    }
-
-    this.min.set(minX, minY, minZ);
-    this.max.set(maxX, maxY, maxZ);
-    return this;
-  }
-
-  setFromBufferAttribute(attribute) {
-    let minX = +Infinity;
-    let minY = +Infinity;
-    let minZ = +Infinity;
-    let maxX = -Infinity;
-    let maxY = -Infinity;
-    let maxZ = -Infinity;
-
-    for (let i = 0, l = attribute.count; i < l; i++) {
-      const x = attribute.getX(i);
-      const y = attribute.getY(i);
-      const z = attribute.getZ(i);
-      if (x < minX) minX = x;
-      if (y < minY) minY = y;
-      if (z < minZ) minZ = z;
-      if (x > maxX) maxX = x;
-      if (y > maxY) maxY = y;
-      if (z > maxZ) maxZ = z;
-    }
-
-    this.min.set(minX, minY, minZ);
-    this.max.set(maxX, maxY, maxZ);
-    return this;
-  }
-
-  setFromPoints(points) {
-    this.makeEmpty();
-
-    for (let i = 0, il = points.length; i < il; i++) {
-      this.expandByPoint(points[i]);
-    }
-
-    return this;
-  }
-
-  setFromCenterAndSize(center, size) {
-    const halfSize = _vector$1.copy(size).multiplyScalar(0.5);
-
-    this.min.copy(center).sub(halfSize);
-    this.max.copy(center).add(halfSize);
-    return this;
-  }
-
-  setFromObject(object) {
-    this.makeEmpty();
-    return this.expandByObject(object);
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-  copy(box) {
-    this.min.copy(box.min);
-    this.max.copy(box.max);
-    return this;
-  }
-
-  makeEmpty() {
-    this.min.x = this.min.y = this.min.z = +Infinity;
-    this.max.x = this.max.y = this.max.z = -Infinity;
-    return this;
-  }
-
-  isEmpty() {
-    // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
-    return this.max.x < this.min.x || this.max.y < this.min.y || this.max.z < this.min.z;
-  }
-
-  getCenter(target) {
-    if (target === undefined) {
-      console.warn('THREE.Box3: .getCenter() target is now required');
-      target = new Vector3();
-    }
-
-    return this.isEmpty() ? target.set(0, 0, 0) : target.addVectors(this.min, this.max).multiplyScalar(0.5);
-  }
-
-  getSize(target) {
-    if (target === undefined) {
-      console.warn('THREE.Box3: .getSize() target is now required');
-      target = new Vector3();
-    }
-
-    return this.isEmpty() ? target.set(0, 0, 0) : target.subVectors(this.max, this.min);
-  }
-
-  expandByPoint(point) {
-    this.min.min(point);
-    this.max.max(point);
-    return this;
-  }
-
-  expandByVector(vector) {
-    this.min.sub(vector);
-    this.max.add(vector);
-    return this;
-  }
-
-  expandByScalar(scalar) {
-    this.min.addScalar(-scalar);
-    this.max.addScalar(scalar);
-    return this;
-  }
-
-  expandByObject(object) {
-    // Computes the world-axis-aligned bounding box of an object (including its children),
-    // accounting for both the object's, and children's, world transforms
-    object.updateWorldMatrix(false, false);
-    const geometry = object.geometry;
-
-    if (geometry !== undefined) {
-      if (geometry.boundingBox === null) {
-        geometry.computeBoundingBox();
-      }
-
-      _box.copy(geometry.boundingBox);
-
-      _box.applyMatrix4(object.matrixWorld);
-
-      this.union(_box);
-    }
-
-    const children = object.children;
-
-    for (let i = 0, l = children.length; i < l; i++) {
-      this.expandByObject(children[i]);
-    }
-
-    return this;
-  }
-
-  containsPoint(point) {
-    return point.x < this.min.x || point.x > this.max.x || point.y < this.min.y || point.y > this.max.y || point.z < this.min.z || point.z > this.max.z ? false : true;
-  }
-
-  containsBox(box) {
-    return this.min.x <= box.min.x && box.max.x <= this.max.x && this.min.y <= box.min.y && box.max.y <= this.max.y && this.min.z <= box.min.z && box.max.z <= this.max.z;
-  }
-
-  getParameter(point, target) {
-    // This can potentially have a divide by zero if the box
-    // has a size dimension of 0.
-    if (target === undefined) {
-      console.warn('THREE.Box3: .getParameter() target is now required');
-      target = new Vector3();
-    }
-
-    return target.set((point.x - this.min.x) / (this.max.x - this.min.x), (point.y - this.min.y) / (this.max.y - this.min.y), (point.z - this.min.z) / (this.max.z - this.min.z));
-  }
-
-  intersectsBox(box) {
-    // using 6 splitting planes to rule out intersections.
-    return box.max.x < this.min.x || box.min.x > this.max.x || box.max.y < this.min.y || box.min.y > this.max.y || box.max.z < this.min.z || box.min.z > this.max.z ? false : true;
-  }
-
-  intersectsSphere(sphere) {
-    // Find the point on the AABB closest to the sphere center.
-    this.clampPoint(sphere.center, _vector$1); // If that point is inside the sphere, the AABB and sphere intersect.
-
-    return _vector$1.distanceToSquared(sphere.center) <= sphere.radius * sphere.radius;
-  }
-
-  intersectsPlane(plane) {
-    // We compute the minimum and maximum dot product values. If those values
-    // are on the same side (back or front) of the plane, then there is no intersection.
-    let min, max;
-
-    if (plane.normal.x > 0) {
-      min = plane.normal.x * this.min.x;
-      max = plane.normal.x * this.max.x;
-    } else {
-      min = plane.normal.x * this.max.x;
-      max = plane.normal.x * this.min.x;
-    }
-
-    if (plane.normal.y > 0) {
-      min += plane.normal.y * this.min.y;
-      max += plane.normal.y * this.max.y;
-    } else {
-      min += plane.normal.y * this.max.y;
-      max += plane.normal.y * this.min.y;
-    }
-
-    if (plane.normal.z > 0) {
-      min += plane.normal.z * this.min.z;
-      max += plane.normal.z * this.max.z;
-    } else {
-      min += plane.normal.z * this.max.z;
-      max += plane.normal.z * this.min.z;
-    }
-
-    return min <= -plane.constant && max >= -plane.constant;
-  }
-
-  intersectsTriangle(triangle) {
-    if (this.isEmpty()) {
-      return false;
-    } // compute box center and extents
-
-
-    this.getCenter(_center);
-
-    _extents.subVectors(this.max, _center); // translate triangle to aabb origin
-
-
-    _v0.subVectors(triangle.a, _center);
-
-    _v1.subVectors(triangle.b, _center);
-
-    _v2.subVectors(triangle.c, _center); // compute edge vectors for triangle
-
-
-    _f0.subVectors(_v1, _v0);
-
-    _f1.subVectors(_v2, _v1);
-
-    _f2.subVectors(_v0, _v2); // test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
-    // make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
-    // axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)
-
-
-    let axes = [0, -_f0.z, _f0.y, 0, -_f1.z, _f1.y, 0, -_f2.z, _f2.y, _f0.z, 0, -_f0.x, _f1.z, 0, -_f1.x, _f2.z, 0, -_f2.x, -_f0.y, _f0.x, 0, -_f1.y, _f1.x, 0, -_f2.y, _f2.x, 0];
-
-    if (!satForAxes(axes, _v0, _v1, _v2, _extents)) {
-      return false;
-    } // test 3 face normals from the aabb
-
-
-    axes = [1, 0, 0, 0, 1, 0, 0, 0, 1];
-
-    if (!satForAxes(axes, _v0, _v1, _v2, _extents)) {
-      return false;
-    } // finally testing the face normal of the triangle
-    // use already existing triangle edge vectors here
-
-
-    _triangleNormal.crossVectors(_f0, _f1);
-
-    axes = [_triangleNormal.x, _triangleNormal.y, _triangleNormal.z];
-    return satForAxes(axes, _v0, _v1, _v2, _extents);
-  }
-
-  clampPoint(point, target) {
-    if (target === undefined) {
-      console.warn('THREE.Box3: .clampPoint() target is now required');
-      target = new Vector3();
-    }
-
-    return target.copy(point).clamp(this.min, this.max);
-  }
-
-  distanceToPoint(point) {
-    const clampedPoint = _vector$1.copy(point).clamp(this.min, this.max);
-
-    return clampedPoint.sub(point).length();
-  }
-
-  getBoundingSphere(target) {
-    if (target === undefined) {
-      console.error('THREE.Box3: .getBoundingSphere() target is now required'); //target = new Sphere(); // removed to avoid cyclic dependency
-    }
-
-    this.getCenter(target.center);
-    target.radius = this.getSize(_vector$1).length() * 0.5;
-    return target;
-  }
-
-  intersect(box) {
-    this.min.max(box.min);
-    this.max.min(box.max); // ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
-
-    if (this.isEmpty()) this.makeEmpty();
-    return this;
-  }
-
-  union(box) {
-    this.min.min(box.min);
-    this.max.max(box.max);
-    return this;
-  }
-
-  applyMatrix4(matrix) {
-    // transform of empty box is an empty box.
-    if (this.isEmpty()) return this; // NOTE: I am using a binary pattern to specify all 2^3 combinations below
-
-    _points[0].set(this.min.x, this.min.y, this.min.z).applyMatrix4(matrix); // 000
-
-
-    _points[1].set(this.min.x, this.min.y, this.max.z).applyMatrix4(matrix); // 001
-
-
-    _points[2].set(this.min.x, this.max.y, this.min.z).applyMatrix4(matrix); // 010
-
-
-    _points[3].set(this.min.x, this.max.y, this.max.z).applyMatrix4(matrix); // 011
-
-
-    _points[4].set(this.max.x, this.min.y, this.min.z).applyMatrix4(matrix); // 100
-
-
-    _points[5].set(this.max.x, this.min.y, this.max.z).applyMatrix4(matrix); // 101
-
-
-    _points[6].set(this.max.x, this.max.y, this.min.z).applyMatrix4(matrix); // 110
-
-
-    _points[7].set(this.max.x, this.max.y, this.max.z).applyMatrix4(matrix); // 111
-
-
-    this.setFromPoints(_points);
-    return this;
-  }
-
-  translate(offset) {
-    this.min.add(offset);
-    this.max.add(offset);
-    return this;
-  }
-
-  equals(box) {
-    return box.min.equals(this.min) && box.max.equals(this.max);
-  }
-
-}
-
-exports.Box3 = Box3;
-Box3.prototype.isBox3 = true;
-const _points = [
-/*@__PURE__*/
-new Vector3(),
-/*@__PURE__*/
-new Vector3(),
-/*@__PURE__*/
-new Vector3(),
-/*@__PURE__*/
-new Vector3(),
-/*@__PURE__*/
-new Vector3(),
-/*@__PURE__*/
-new Vector3(),
-/*@__PURE__*/
-new Vector3(),
-/*@__PURE__*/
-new Vector3()];
-
-const _vector$1 =
-/*@__PURE__*/
-new Vector3();
-
-const _box =
-/*@__PURE__*/
-new Box3(); // triangle centered vertices
-
-
-const _v0 =
-/*@__PURE__*/
-new Vector3();
-
-const _v1 =
-/*@__PURE__*/
-new Vector3();
-
-const _v2 =
-/*@__PURE__*/
-new Vector3(); // triangle edge vectors
-
-
-const _f0 =
-/*@__PURE__*/
-new Vector3();
-
-const _f1 =
-/*@__PURE__*/
-new Vector3();
-
-const _f2 =
-/*@__PURE__*/
-new Vector3();
-
-const _center =
-/*@__PURE__*/
-new Vector3();
-
-const _extents =
-/*@__PURE__*/
-new Vector3();
-
-const _triangleNormal =
-/*@__PURE__*/
-new Vector3();
-
-const _testAxis =
-/*@__PURE__*/
-new Vector3();
-
-function satForAxes(axes, v0, v1, v2, extents) {
-  for (let i = 0, j = axes.length - 3; i <= j; i += 3) {
-    _testAxis.fromArray(axes, i); // project the aabb onto the seperating axis
-
-
-    const r = extents.x * Math.abs(_testAxis.x) + extents.y * Math.abs(_testAxis.y) + extents.z * Math.abs(_testAxis.z); // project all 3 vertices of the triangle onto the seperating axis
-
-    const p0 = v0.dot(_testAxis);
-    const p1 = v1.dot(_testAxis);
-    const p2 = v2.dot(_testAxis); // actual test, basically see if either of the most extreme of the triangle points intersects r
-
-    if (Math.max(-Math.max(p0, p1, p2), Math.min(p0, p1, p2)) > r) {
-      // points of the projected triangle are outside the projected half-length of the aabb
-      // the axis is seperating and we can exit
-      return false;
-    }
-  }
-
-  return true;
-}
-
-const _box$1 =
-/*@__PURE__*/
-new Box3();
-
-class Sphere {
-  constructor(center = new Vector3(), radius = -1) {
-    this.center = center;
-    this.radius = radius;
-  }
-
-  set(center, radius) {
-    this.center.copy(center);
-    this.radius = radius;
-    return this;
-  }
-
-  setFromPoints(points, optionalCenter) {
-    const center = this.center;
-
-    if (optionalCenter !== undefined) {
-      center.copy(optionalCenter);
-    } else {
-      _box$1.setFromPoints(points).getCenter(center);
-    }
-
-    let maxRadiusSq = 0;
-
-    for (let i = 0, il = points.length; i < il; i++) {
-      maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(points[i]));
-    }
-
-    this.radius = Math.sqrt(maxRadiusSq);
-    return this;
-  }
-
-  copy(sphere) {
-    this.center.copy(sphere.center);
-    this.radius = sphere.radius;
-    return this;
-  }
-
-  isEmpty() {
-    return this.radius < 0;
-  }
-
-  makeEmpty() {
-    this.center.set(0, 0, 0);
-    this.radius = -1;
-    return this;
-  }
-
-  containsPoint(point) {
-    return point.distanceToSquared(this.center) <= this.radius * this.radius;
-  }
-
-  distanceToPoint(point) {
-    return point.distanceTo(this.center) - this.radius;
-  }
-
-  intersectsSphere(sphere) {
-    const radiusSum = this.radius + sphere.radius;
-    return sphere.center.distanceToSquared(this.center) <= radiusSum * radiusSum;
-  }
-
-  intersectsBox(box) {
-    return box.intersectsSphere(this);
-  }
-
-  intersectsPlane(plane) {
-    return Math.abs(plane.distanceToPoint(this.center)) <= this.radius;
-  }
-
-  clampPoint(point, target) {
-    const deltaLengthSq = this.center.distanceToSquared(point);
-
-    if (target === undefined) {
-      console.warn('THREE.Sphere: .clampPoint() target is now required');
-      target = new Vector3();
-    }
-
-    target.copy(point);
-
-    if (deltaLengthSq > this.radius * this.radius) {
-      target.sub(this.center).normalize();
-      target.multiplyScalar(this.radius).add(this.center);
-    }
-
-    return target;
-  }
-
-  getBoundingBox(target) {
-    if (target === undefined) {
-      console.warn('THREE.Sphere: .getBoundingBox() target is now required');
-      target = new Box3();
-    }
-
-    if (this.isEmpty()) {
-      // Empty sphere produces empty bounding box
-      target.makeEmpty();
-      return target;
-    }
-
-    target.set(this.center, this.center);
-    target.expandByScalar(this.radius);
-    return target;
-  }
-
-  applyMatrix4(matrix) {
-    this.center.applyMatrix4(matrix);
-    this.radius = this.radius * matrix.getMaxScaleOnAxis();
-    return this;
-  }
-
-  translate(offset) {
-    this.center.add(offset);
-    return this;
-  }
-
-  equals(sphere) {
-    return sphere.center.equals(this.center) && sphere.radius === this.radius;
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-}
-
-exports.Sphere = Sphere;
-
-const _vector$2 =
-/*@__PURE__*/
-new Vector3();
-
-const _segCenter =
-/*@__PURE__*/
-new Vector3();
-
-const _segDir =
-/*@__PURE__*/
-new Vector3();
-
-const _diff =
-/*@__PURE__*/
-new Vector3();
-
-const _edge1 =
-/*@__PURE__*/
-new Vector3();
-
-const _edge2 =
-/*@__PURE__*/
-new Vector3();
-
-const _normal =
-/*@__PURE__*/
-new Vector3();
-
-class Ray {
-  constructor(origin = new Vector3(), direction = new Vector3(0, 0, -1)) {
-    this.origin = origin;
-    this.direction = direction;
-  }
-
-  set(origin, direction) {
-    this.origin.copy(origin);
-    this.direction.copy(direction);
-    return this;
-  }
-
-  copy(ray) {
-    this.origin.copy(ray.origin);
-    this.direction.copy(ray.direction);
-    return this;
-  }
-
-  at(t, target) {
-    if (target === undefined) {
-      console.warn('THREE.Ray: .at() target is now required');
-      target = new Vector3();
-    }
-
-    return target.copy(this.direction).multiplyScalar(t).add(this.origin);
-  }
-
-  lookAt(v) {
-    this.direction.copy(v).sub(this.origin).normalize();
-    return this;
-  }
-
-  recast(t) {
-    this.origin.copy(this.at(t, _vector$2));
-    return this;
-  }
-
-  closestPointToPoint(point, target) {
-    if (target === undefined) {
-      console.warn('THREE.Ray: .closestPointToPoint() target is now required');
-      target = new Vector3();
-    }
-
-    target.subVectors(point, this.origin);
-    const directionDistance = target.dot(this.direction);
-
-    if (directionDistance < 0) {
-      return target.copy(this.origin);
-    }
-
-    return target.copy(this.direction).multiplyScalar(directionDistance).add(this.origin);
-  }
-
-  distanceToPoint(point) {
-    return Math.sqrt(this.distanceSqToPoint(point));
-  }
-
-  distanceSqToPoint(point) {
-    const directionDistance = _vector$2.subVectors(point, this.origin).dot(this.direction); // point behind the ray
-
-
-    if (directionDistance < 0) {
-      return this.origin.distanceToSquared(point);
-    }
-
-    _vector$2.copy(this.direction).multiplyScalar(directionDistance).add(this.origin);
-
-    return _vector$2.distanceToSquared(point);
-  }
-
-  distanceSqToSegment(v0, v1, optionalPointOnRay, optionalPointOnSegment) {
-    // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h
-    // It returns the min distance between the ray and the segment
-    // defined by v0 and v1
-    // It can also set two optional targets :
-    // - The closest point on the ray
-    // - The closest point on the segment
-    _segCenter.copy(v0).add(v1).multiplyScalar(0.5);
-
-    _segDir.copy(v1).sub(v0).normalize();
-
-    _diff.copy(this.origin).sub(_segCenter);
-
-    const segExtent = v0.distanceTo(v1) * 0.5;
-    const a01 = -this.direction.dot(_segDir);
-
-    const b0 = _diff.dot(this.direction);
-
-    const b1 = -_diff.dot(_segDir);
-
-    const c = _diff.lengthSq();
-
-    const det = Math.abs(1 - a01 * a01);
-    let s0, s1, sqrDist, extDet;
-
-    if (det > 0) {
-      // The ray and segment are not parallel.
-      s0 = a01 * b1 - b0;
-      s1 = a01 * b0 - b1;
-      extDet = segExtent * det;
-
-      if (s0 >= 0) {
-        if (s1 >= -extDet) {
-          if (s1 <= extDet) {
-            // region 0
-            // Minimum at interior points of ray and segment.
-            const invDet = 1 / det;
-            s0 *= invDet;
-            s1 *= invDet;
-            sqrDist = s0 * (s0 + a01 * s1 + 2 * b0) + s1 * (a01 * s0 + s1 + 2 * b1) + c;
-          } else {
-            // region 1
-            s1 = segExtent;
-            s0 = Math.max(0, -(a01 * s1 + b0));
-            sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
-          }
-        } else {
-          // region 5
-          s1 = -segExtent;
-          s0 = Math.max(0, -(a01 * s1 + b0));
-          sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
-        }
-      } else {
-        if (s1 <= -extDet) {
-          // region 4
-          s0 = Math.max(0, -(-a01 * segExtent + b0));
-          s1 = s0 > 0 ? -segExtent : Math.min(Math.max(-segExtent, -b1), segExtent);
-          sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
-        } else if (s1 <= extDet) {
-          // region 3
-          s0 = 0;
-          s1 = Math.min(Math.max(-segExtent, -b1), segExtent);
-          sqrDist = s1 * (s1 + 2 * b1) + c;
-        } else {
-          // region 2
-          s0 = Math.max(0, -(a01 * segExtent + b0));
-          s1 = s0 > 0 ? segExtent : Math.min(Math.max(-segExtent, -b1), segExtent);
-          sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
-        }
-      }
-    } else {
-      // Ray and segment are parallel.
-      s1 = a01 > 0 ? -segExtent : segExtent;
-      s0 = Math.max(0, -(a01 * s1 + b0));
-      sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
-    }
-
-    if (optionalPointOnRay) {
-      optionalPointOnRay.copy(this.direction).multiplyScalar(s0).add(this.origin);
-    }
-
-    if (optionalPointOnSegment) {
-      optionalPointOnSegment.copy(_segDir).multiplyScalar(s1).add(_segCenter);
-    }
-
-    return sqrDist;
-  }
-
-  intersectSphere(sphere, target) {
-    _vector$2.subVectors(sphere.center, this.origin);
-
-    const tca = _vector$2.dot(this.direction);
-
-    const d2 = _vector$2.dot(_vector$2) - tca * tca;
-    const radius2 = sphere.radius * sphere.radius;
-    if (d2 > radius2) return null;
-    const thc = Math.sqrt(radius2 - d2); // t0 = first intersect point - entrance on front of sphere
-
-    const t0 = tca - thc; // t1 = second intersect point - exit point on back of sphere
-
-    const t1 = tca + thc; // test to see if both t0 and t1 are behind the ray - if so, return null
-
-    if (t0 < 0 && t1 < 0) return null; // test to see if t0 is behind the ray:
-    // if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
-    // in order to always return an intersect point that is in front of the ray.
-
-    if (t0 < 0) return this.at(t1, target); // else t0 is in front of the ray, so return the first collision point scaled by t0
-
-    return this.at(t0, target);
-  }
-
-  intersectsSphere(sphere) {
-    return this.distanceSqToPoint(sphere.center) <= sphere.radius * sphere.radius;
-  }
-
-  distanceToPlane(plane) {
-    const denominator = plane.normal.dot(this.direction);
-
-    if (denominator === 0) {
-      // line is coplanar, return origin
-      if (plane.distanceToPoint(this.origin) === 0) {
-        return 0;
-      } // Null is preferable to undefined since undefined means.... it is undefined
-
-
-      return null;
-    }
-
-    const t = -(this.origin.dot(plane.normal) + plane.constant) / denominator; // Return if the ray never intersects the plane
-
-    return t >= 0 ? t : null;
-  }
-
-  intersectPlane(plane, target) {
-    const t = this.distanceToPlane(plane);
-
-    if (t === null) {
-      return null;
-    }
-
-    return this.at(t, target);
-  }
-
-  intersectsPlane(plane) {
-    // check if the ray lies on the plane first
-    const distToPoint = plane.distanceToPoint(this.origin);
-
-    if (distToPoint === 0) {
-      return true;
-    }
-
-    const denominator = plane.normal.dot(this.direction);
-
-    if (denominator * distToPoint < 0) {
-      return true;
-    } // ray origin is behind the plane (and is pointing behind it)
-
-
-    return false;
-  }
-
-  intersectBox(box, target) {
-    let tmin, tmax, tymin, tymax, tzmin, tzmax;
-    const invdirx = 1 / this.direction.x,
-          invdiry = 1 / this.direction.y,
-          invdirz = 1 / this.direction.z;
-    const origin = this.origin;
-
-    if (invdirx >= 0) {
-      tmin = (box.min.x - origin.x) * invdirx;
-      tmax = (box.max.x - origin.x) * invdirx;
-    } else {
-      tmin = (box.max.x - origin.x) * invdirx;
-      tmax = (box.min.x - origin.x) * invdirx;
-    }
-
-    if (invdiry >= 0) {
-      tymin = (box.min.y - origin.y) * invdiry;
-      tymax = (box.max.y - origin.y) * invdiry;
-    } else {
-      tymin = (box.max.y - origin.y) * invdiry;
-      tymax = (box.min.y - origin.y) * invdiry;
-    }
-
-    if (tmin > tymax || tymin > tmax) return null; // These lines also handle the case where tmin or tmax is NaN
-    // (result of 0 * Infinity). x !== x returns true if x is NaN
-
-    if (tymin > tmin || tmin !== tmin) tmin = tymin;
-    if (tymax < tmax || tmax !== tmax) tmax = tymax;
-
-    if (invdirz >= 0) {
-      tzmin = (box.min.z - origin.z) * invdirz;
-      tzmax = (box.max.z - origin.z) * invdirz;
-    } else {
-      tzmin = (box.max.z - origin.z) * invdirz;
-      tzmax = (box.min.z - origin.z) * invdirz;
-    }
-
-    if (tmin > tzmax || tzmin > tmax) return null;
-    if (tzmin > tmin || tmin !== tmin) tmin = tzmin;
-    if (tzmax < tmax || tmax !== tmax) tmax = tzmax; //return point closest to the ray (positive side)
-
-    if (tmax < 0) return null;
-    return this.at(tmin >= 0 ? tmin : tmax, target);
-  }
-
-  intersectsBox(box) {
-    return this.intersectBox(box, _vector$2) !== null;
-  }
-
-  intersectTriangle(a, b, c, backfaceCulling, target) {
-    // Compute the offset origin, edges, and normal.
-    // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h
-    _edge1.subVectors(b, a);
-
-    _edge2.subVectors(c, a);
-
-    _normal.crossVectors(_edge1, _edge2); // Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
-    // E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
-    //   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
-    //   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
-    //   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
-
-
-    let DdN = this.direction.dot(_normal);
-    let sign;
-
-    if (DdN > 0) {
-      if (backfaceCulling) return null;
-      sign = 1;
-    } else if (DdN < 0) {
-      sign = -1;
-      DdN = -DdN;
-    } else {
-      return null;
-    }
-
-    _diff.subVectors(this.origin, a);
-
-    const DdQxE2 = sign * this.direction.dot(_edge2.crossVectors(_diff, _edge2)); // b1 < 0, no intersection
-
-    if (DdQxE2 < 0) {
-      return null;
-    }
-
-    const DdE1xQ = sign * this.direction.dot(_edge1.cross(_diff)); // b2 < 0, no intersection
-
-    if (DdE1xQ < 0) {
-      return null;
-    } // b1+b2 > 1, no intersection
-
-
-    if (DdQxE2 + DdE1xQ > DdN) {
-      return null;
-    } // Line intersects triangle, check if ray does.
-
-
-    const QdN = -sign * _diff.dot(_normal); // t < 0, no intersection
-
-
-    if (QdN < 0) {
-      return null;
-    } // Ray intersects triangle.
-
-
-    return this.at(QdN / DdN, target);
-  }
-
-  applyMatrix4(matrix4) {
-    this.origin.applyMatrix4(matrix4);
-    this.direction.transformDirection(matrix4);
-    return this;
-  }
-
-  equals(ray) {
-    return ray.origin.equals(this.origin) && ray.direction.equals(this.direction);
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-}
-
-exports.Ray = Ray;
-
-class Matrix4 {
-  constructor() {
-    this.elements = [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1];
-
-    if (arguments.length > 0) {
-      console.error('THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.');
-    }
-  }
-
-  set(n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44) {
-    const te = this.elements;
-    te[0] = n11;
-    te[4] = n12;
-    te[8] = n13;
-    te[12] = n14;
-    te[1] = n21;
-    te[5] = n22;
-    te[9] = n23;
-    te[13] = n24;
-    te[2] = n31;
-    te[6] = n32;
-    te[10] = n33;
-    te[14] = n34;
-    te[3] = n41;
-    te[7] = n42;
-    te[11] = n43;
-    te[15] = n44;
-    return this;
-  }
-
-  identity() {
-    this.set(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-    return this;
-  }
-
-  clone() {
-    return new Matrix4().fromArray(this.elements);
-  }
-
-  copy(m) {
-    const te = this.elements;
-    const me = m.elements;
-    te[0] = me[0];
-    te[1] = me[1];
-    te[2] = me[2];
-    te[3] = me[3];
-    te[4] = me[4];
-    te[5] = me[5];
-    te[6] = me[6];
-    te[7] = me[7];
-    te[8] = me[8];
-    te[9] = me[9];
-    te[10] = me[10];
-    te[11] = me[11];
-    te[12] = me[12];
-    te[13] = me[13];
-    te[14] = me[14];
-    te[15] = me[15];
-    return this;
-  }
-
-  copyPosition(m) {
-    const te = this.elements,
-          me = m.elements;
-    te[12] = me[12];
-    te[13] = me[13];
-    te[14] = me[14];
-    return this;
-  }
-
-  setFromMatrix3(m) {
-    const me = m.elements;
-    this.set(me[0], me[3], me[6], 0, me[1], me[4], me[7], 0, me[2], me[5], me[8], 0, 0, 0, 0, 1);
-    return this;
-  }
-
-  extractBasis(xAxis, yAxis, zAxis) {
-    xAxis.setFromMatrixColumn(this, 0);
-    yAxis.setFromMatrixColumn(this, 1);
-    zAxis.setFromMatrixColumn(this, 2);
-    return this;
-  }
-
-  makeBasis(xAxis, yAxis, zAxis) {
-    this.set(xAxis.x, yAxis.x, zAxis.x, 0, xAxis.y, yAxis.y, zAxis.y, 0, xAxis.z, yAxis.z, zAxis.z, 0, 0, 0, 0, 1);
-    return this;
-  }
-
-  extractRotation(m) {
-    // this method does not support reflection matrices
-    const te = this.elements;
-    const me = m.elements;
-
-    const scaleX = 1 / _v1$1.setFromMatrixColumn(m, 0).length();
-
-    const scaleY = 1 / _v1$1.setFromMatrixColumn(m, 1).length();
-
-    const scaleZ = 1 / _v1$1.setFromMatrixColumn(m, 2).length();
-
-    te[0] = me[0] * scaleX;
-    te[1] = me[1] * scaleX;
-    te[2] = me[2] * scaleX;
-    te[3] = 0;
-    te[4] = me[4] * scaleY;
-    te[5] = me[5] * scaleY;
-    te[6] = me[6] * scaleY;
-    te[7] = 0;
-    te[8] = me[8] * scaleZ;
-    te[9] = me[9] * scaleZ;
-    te[10] = me[10] * scaleZ;
-    te[11] = 0;
-    te[12] = 0;
-    te[13] = 0;
-    te[14] = 0;
-    te[15] = 1;
-    return this;
-  }
-
-  makeRotationFromEuler(euler) {
-    if (!(euler && euler.isEuler)) {
-      console.error('THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.');
-    }
-
-    const te = this.elements;
-    const x = euler.x,
-          y = euler.y,
-          z = euler.z;
-    const a = Math.cos(x),
-          b = Math.sin(x);
-    const c = Math.cos(y),
-          d = Math.sin(y);
-    const e = Math.cos(z),
-          f = Math.sin(z);
-
-    if (euler.order === 'XYZ') {
-      const ae = a * e,
-            af = a * f,
-            be = b * e,
-            bf = b * f;
-      te[0] = c * e;
-      te[4] = -c * f;
-      te[8] = d;
-      te[1] = af + be * d;
-      te[5] = ae - bf * d;
-      te[9] = -b * c;
-      te[2] = bf - ae * d;
-      te[6] = be + af * d;
-      te[10] = a * c;
-    } else if (euler.order === 'YXZ') {
-      const ce = c * e,
-            cf = c * f,
-            de = d * e,
-            df = d * f;
-      te[0] = ce + df * b;
-      te[4] = de * b - cf;
-      te[8] = a * d;
-      te[1] = a * f;
-      te[5] = a * e;
-      te[9] = -b;
-      te[2] = cf * b - de;
-      te[6] = df + ce * b;
-      te[10] = a * c;
-    } else if (euler.order === 'ZXY') {
-      const ce = c * e,
-            cf = c * f,
-            de = d * e,
-            df = d * f;
-      te[0] = ce - df * b;
-      te[4] = -a * f;
-      te[8] = de + cf * b;
-      te[1] = cf + de * b;
-      te[5] = a * e;
-      te[9] = df - ce * b;
-      te[2] = -a * d;
-      te[6] = b;
-      te[10] = a * c;
-    } else if (euler.order === 'ZYX') {
-      const ae = a * e,
-            af = a * f,
-            be = b * e,
-            bf = b * f;
-      te[0] = c * e;
-      te[4] = be * d - af;
-      te[8] = ae * d + bf;
-      te[1] = c * f;
-      te[5] = bf * d + ae;
-      te[9] = af * d - be;
-      te[2] = -d;
-      te[6] = b * c;
-      te[10] = a * c;
-    } else if (euler.order === 'YZX') {
-      const ac = a * c,
-            ad = a * d,
-            bc = b * c,
-            bd = b * d;
-      te[0] = c * e;
-      te[4] = bd - ac * f;
-      te[8] = bc * f + ad;
-      te[1] = f;
-      te[5] = a * e;
-      te[9] = -b * e;
-      te[2] = -d * e;
-      te[6] = ad * f + bc;
-      te[10] = ac - bd * f;
-    } else if (euler.order === 'XZY') {
-      const ac = a * c,
-            ad = a * d,
-            bc = b * c,
-            bd = b * d;
-      te[0] = c * e;
-      te[4] = -f;
-      te[8] = d * e;
-      te[1] = ac * f + bd;
-      te[5] = a * e;
-      te[9] = ad * f - bc;
-      te[2] = bc * f - ad;
-      te[6] = b * e;
-      te[10] = bd * f + ac;
-    } // bottom row
-
-
-    te[3] = 0;
-    te[7] = 0;
-    te[11] = 0; // last column
-
-    te[12] = 0;
-    te[13] = 0;
-    te[14] = 0;
-    te[15] = 1;
-    return this;
-  }
-
-  makeRotationFromQuaternion(q) {
-    return this.compose(_zero, q, _one);
-  }
-
-  lookAt(eye, target, up) {
-    const te = this.elements;
-
-    _z.subVectors(eye, target);
-
-    if (_z.lengthSq() === 0) {
-      // eye and target are in the same position
-      _z.z = 1;
-    }
-
-    _z.normalize();
-
-    _x.crossVectors(up, _z);
-
-    if (_x.lengthSq() === 0) {
-      // up and z are parallel
-      if (Math.abs(up.z) === 1) {
-        _z.x += 0.0001;
-      } else {
-        _z.z += 0.0001;
-      }
-
-      _z.normalize();
-
-      _x.crossVectors(up, _z);
-    }
-
-    _x.normalize();
-
-    _y.crossVectors(_z, _x);
-
-    te[0] = _x.x;
-    te[4] = _y.x;
-    te[8] = _z.x;
-    te[1] = _x.y;
-    te[5] = _y.y;
-    te[9] = _z.y;
-    te[2] = _x.z;
-    te[6] = _y.z;
-    te[10] = _z.z;
-    return this;
-  }
-
-  multiply(m, n) {
-    if (n !== undefined) {
-      console.warn('THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.');
-      return this.multiplyMatrices(m, n);
-    }
-
-    return this.multiplyMatrices(this, m);
-  }
-
-  premultiply(m) {
-    return this.multiplyMatrices(m, this);
-  }
-
-  multiplyMatrices(a, b) {
-    const ae = a.elements;
-    const be = b.elements;
-    const te = this.elements;
-    const a11 = ae[0],
-          a12 = ae[4],
-          a13 = ae[8],
-          a14 = ae[12];
-    const a21 = ae[1],
-          a22 = ae[5],
-          a23 = ae[9],
-          a24 = ae[13];
-    const a31 = ae[2],
-          a32 = ae[6],
-          a33 = ae[10],
-          a34 = ae[14];
-    const a41 = ae[3],
-          a42 = ae[7],
-          a43 = ae[11],
-          a44 = ae[15];
-    const b11 = be[0],
-          b12 = be[4],
-          b13 = be[8],
-          b14 = be[12];
-    const b21 = be[1],
-          b22 = be[5],
-          b23 = be[9],
-          b24 = be[13];
-    const b31 = be[2],
-          b32 = be[6],
-          b33 = be[10],
-          b34 = be[14];
-    const b41 = be[3],
-          b42 = be[7],
-          b43 = be[11],
-          b44 = be[15];
-    te[0] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
-    te[4] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
-    te[8] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
-    te[12] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;
-    te[1] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
-    te[5] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
-    te[9] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
-    te[13] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;
-    te[2] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
-    te[6] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
-    te[10] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
-    te[14] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;
-    te[3] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
-    te[7] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
-    te[11] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
-    te[15] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;
-    return this;
-  }
-
-  multiplyScalar(s) {
-    const te = this.elements;
-    te[0] *= s;
-    te[4] *= s;
-    te[8] *= s;
-    te[12] *= s;
-    te[1] *= s;
-    te[5] *= s;
-    te[9] *= s;
-    te[13] *= s;
-    te[2] *= s;
-    te[6] *= s;
-    te[10] *= s;
-    te[14] *= s;
-    te[3] *= s;
-    te[7] *= s;
-    te[11] *= s;
-    te[15] *= s;
-    return this;
-  }
-
-  determinant() {
-    const te = this.elements;
-    const n11 = te[0],
-          n12 = te[4],
-          n13 = te[8],
-          n14 = te[12];
-    const n21 = te[1],
-          n22 = te[5],
-          n23 = te[9],
-          n24 = te[13];
-    const n31 = te[2],
-          n32 = te[6],
-          n33 = te[10],
-          n34 = te[14];
-    const n41 = te[3],
-          n42 = te[7],
-          n43 = te[11],
-          n44 = te[15]; //TODO: make this more efficient
-    //( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )
-
-    return n41 * (+n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34) + n42 * (+n11 * n23 * n34 - n11 * n24 * n33 + n14 * n21 * n33 - n13 * n21 * n34 + n13 * n24 * n31 - n14 * n23 * n31) + n43 * (+n11 * n24 * n32 - n11 * n22 * n34 - n14 * n21 * n32 + n12 * n21 * n34 + n14 * n22 * n31 - n12 * n24 * n31) + n44 * (-n13 * n22 * n31 - n11 * n23 * n32 + n11 * n22 * n33 + n13 * n21 * n32 - n12 * n21 * n33 + n12 * n23 * n31);
-  }
-
-  transpose() {
-    const te = this.elements;
-    let tmp;
-    tmp = te[1];
-    te[1] = te[4];
-    te[4] = tmp;
-    tmp = te[2];
-    te[2] = te[8];
-    te[8] = tmp;
-    tmp = te[6];
-    te[6] = te[9];
-    te[9] = tmp;
-    tmp = te[3];
-    te[3] = te[12];
-    te[12] = tmp;
-    tmp = te[7];
-    te[7] = te[13];
-    te[13] = tmp;
-    tmp = te[11];
-    te[11] = te[14];
-    te[14] = tmp;
-    return this;
-  }
-
-  setPosition(x, y, z) {
-    const te = this.elements;
-
-    if (x.isVector3) {
-      te[12] = x.x;
-      te[13] = x.y;
-      te[14] = x.z;
-    } else {
-      te[12] = x;
-      te[13] = y;
-      te[14] = z;
-    }
-
-    return this;
-  }
-
-  invert() {
-    // based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
-    const te = this.elements,
-          n11 = te[0],
-          n21 = te[1],
-          n31 = te[2],
-          n41 = te[3],
-          n12 = te[4],
-          n22 = te[5],
-          n32 = te[6],
-          n42 = te[7],
-          n13 = te[8],
-          n23 = te[9],
-          n33 = te[10],
-          n43 = te[11],
-          n14 = te[12],
-          n24 = te[13],
-          n34 = te[14],
-          n44 = te[15],
-          t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
-          t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
-          t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
-          t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;
-    const det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;
-    if (det === 0) return this.set(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
-    const detInv = 1 / det;
-    te[0] = t11 * detInv;
-    te[1] = (n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44) * detInv;
-    te[2] = (n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44) * detInv;
-    te[3] = (n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43) * detInv;
-    te[4] = t12 * detInv;
-    te[5] = (n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44) * detInv;
-    te[6] = (n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44) * detInv;
-    te[7] = (n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43) * detInv;
-    te[8] = t13 * detInv;
-    te[9] = (n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44) * detInv;
-    te[10] = (n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44) * detInv;
-    te[11] = (n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43) * detInv;
-    te[12] = t14 * detInv;
-    te[13] = (n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34) * detInv;
-    te[14] = (n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34) * detInv;
-    te[15] = (n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33) * detInv;
-    return this;
-  }
-
-  scale(v) {
-    const te = this.elements;
-    const x = v.x,
-          y = v.y,
-          z = v.z;
-    te[0] *= x;
-    te[4] *= y;
-    te[8] *= z;
-    te[1] *= x;
-    te[5] *= y;
-    te[9] *= z;
-    te[2] *= x;
-    te[6] *= y;
-    te[10] *= z;
-    te[3] *= x;
-    te[7] *= y;
-    te[11] *= z;
-    return this;
-  }
-
-  getMaxScaleOnAxis() {
-    const te = this.elements;
-    const scaleXSq = te[0] * te[0] + te[1] * te[1] + te[2] * te[2];
-    const scaleYSq = te[4] * te[4] + te[5] * te[5] + te[6] * te[6];
-    const scaleZSq = te[8] * te[8] + te[9] * te[9] + te[10] * te[10];
-    return Math.sqrt(Math.max(scaleXSq, scaleYSq, scaleZSq));
-  }
-
-  makeTranslation(x, y, z) {
-    this.set(1, 0, 0, x, 0, 1, 0, y, 0, 0, 1, z, 0, 0, 0, 1);
-    return this;
-  }
-
-  makeRotationX(theta) {
-    const c = Math.cos(theta),
-          s = Math.sin(theta);
-    this.set(1, 0, 0, 0, 0, c, -s, 0, 0, s, c, 0, 0, 0, 0, 1);
-    return this;
-  }
-
-  makeRotationY(theta) {
-    const c = Math.cos(theta),
-          s = Math.sin(theta);
-    this.set(c, 0, s, 0, 0, 1, 0, 0, -s, 0, c, 0, 0, 0, 0, 1);
-    return this;
-  }
-
-  makeRotationZ(theta) {
-    const c = Math.cos(theta),
-          s = Math.sin(theta);
-    this.set(c, -s, 0, 0, s, c, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-    return this;
-  }
-
-  makeRotationAxis(axis, angle) {
-    // Based on http://www.gamedev.net/reference/articles/article1199.asp
-    const c = Math.cos(angle);
-    const s = Math.sin(angle);
-    const t = 1 - c;
-    const x = axis.x,
-          y = axis.y,
-          z = axis.z;
-    const tx = t * x,
-          ty = t * y;
-    this.set(tx * x + c, tx * y - s * z, tx * z + s * y, 0, tx * y + s * z, ty * y + c, ty * z - s * x, 0, tx * z - s * y, ty * z + s * x, t * z * z + c, 0, 0, 0, 0, 1);
-    return this;
-  }
-
-  makeScale(x, y, z) {
-    this.set(x, 0, 0, 0, 0, y, 0, 0, 0, 0, z, 0, 0, 0, 0, 1);
-    return this;
-  }
-
-  makeShear(x, y, z) {
-    this.set(1, y, z, 0, x, 1, z, 0, x, y, 1, 0, 0, 0, 0, 1);
-    return this;
-  }
-
-  compose(position, quaternion, scale) {
-    const te = this.elements;
-    const x = quaternion._x,
-          y = quaternion._y,
-          z = quaternion._z,
-          w = quaternion._w;
-    const x2 = x + x,
-          y2 = y + y,
-          z2 = z + z;
-    const xx = x * x2,
-          xy = x * y2,
-          xz = x * z2;
-    const yy = y * y2,
-          yz = y * z2,
-          zz = z * z2;
-    const wx = w * x2,
-          wy = w * y2,
-          wz = w * z2;
-    const sx = scale.x,
-          sy = scale.y,
-          sz = scale.z;
-    te[0] = (1 - (yy + zz)) * sx;
-    te[1] = (xy + wz) * sx;
-    te[2] = (xz - wy) * sx;
-    te[3] = 0;
-    te[4] = (xy - wz) * sy;
-    te[5] = (1 - (xx + zz)) * sy;
-    te[6] = (yz + wx) * sy;
-    te[7] = 0;
-    te[8] = (xz + wy) * sz;
-    te[9] = (yz - wx) * sz;
-    te[10] = (1 - (xx + yy)) * sz;
-    te[11] = 0;
-    te[12] = position.x;
-    te[13] = position.y;
-    te[14] = position.z;
-    te[15] = 1;
-    return this;
-  }
-
-  decompose(position, quaternion, scale) {
-    const te = this.elements;
-
-    let sx = _v1$1.set(te[0], te[1], te[2]).length();
-
-    const sy = _v1$1.set(te[4], te[5], te[6]).length();
-
-    const sz = _v1$1.set(te[8], te[9], te[10]).length(); // if determine is negative, we need to invert one scale
-
-
-    const det = this.determinant();
-    if (det < 0) sx = -sx;
-    position.x = te[12];
-    position.y = te[13];
-    position.z = te[14]; // scale the rotation part
-
-    _m1.copy(this);
-
-    const invSX = 1 / sx;
-    const invSY = 1 / sy;
-    const invSZ = 1 / sz;
-    _m1.elements[0] *= invSX;
-    _m1.elements[1] *= invSX;
-    _m1.elements[2] *= invSX;
-    _m1.elements[4] *= invSY;
-    _m1.elements[5] *= invSY;
-    _m1.elements[6] *= invSY;
-    _m1.elements[8] *= invSZ;
-    _m1.elements[9] *= invSZ;
-    _m1.elements[10] *= invSZ;
-    quaternion.setFromRotationMatrix(_m1);
-    scale.x = sx;
-    scale.y = sy;
-    scale.z = sz;
-    return this;
-  }
-
-  makePerspective(left, right, top, bottom, near, far) {
-    if (far === undefined) {
-      console.warn('THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.');
-    }
-
-    const te = this.elements;
-    const x = 2 * near / (right - left);
-    const y = 2 * near / (top - bottom);
-    const a = (right + left) / (right - left);
-    const b = (top + bottom) / (top - bottom);
-    const c = -(far + near) / (far - near);
-    const d = -2 * far * near / (far - near);
-    te[0] = x;
-    te[4] = 0;
-    te[8] = a;
-    te[12] = 0;
-    te[1] = 0;
-    te[5] = y;
-    te[9] = b;
-    te[13] = 0;
-    te[2] = 0;
-    te[6] = 0;
-    te[10] = c;
-    te[14] = d;
-    te[3] = 0;
-    te[7] = 0;
-    te[11] = -1;
-    te[15] = 0;
-    return this;
-  }
-
-  makeOrthographic(left, right, top, bottom, near, far) {
-    const te = this.elements;
-    const w = 1.0 / (right - left);
-    const h = 1.0 / (top - bottom);
-    const p = 1.0 / (far - near);
-    const x = (right + left) * w;
-    const y = (top + bottom) * h;
-    const z = (far + near) * p;
-    te[0] = 2 * w;
-    te[4] = 0;
-    te[8] = 0;
-    te[12] = -x;
-    te[1] = 0;
-    te[5] = 2 * h;
-    te[9] = 0;
-    te[13] = -y;
-    te[2] = 0;
-    te[6] = 0;
-    te[10] = -2 * p;
-    te[14] = -z;
-    te[3] = 0;
-    te[7] = 0;
-    te[11] = 0;
-    te[15] = 1;
-    return this;
-  }
-
-  equals(matrix) {
-    const te = this.elements;
-    const me = matrix.elements;
-
-    for (let i = 0; i < 16; i++) {
-      if (te[i] !== me[i]) return false;
-    }
-
-    return true;
-  }
-
-  fromArray(array, offset = 0) {
-    for (let i = 0; i < 16; i++) {
-      this.elements[i] = array[i + offset];
-    }
-
-    return this;
-  }
-
-  toArray(array = [], offset = 0) {
-    const te = this.elements;
-    array[offset] = te[0];
-    array[offset + 1] = te[1];
-    array[offset + 2] = te[2];
-    array[offset + 3] = te[3];
-    array[offset + 4] = te[4];
-    array[offset + 5] = te[5];
-    array[offset + 6] = te[6];
-    array[offset + 7] = te[7];
-    array[offset + 8] = te[8];
-    array[offset + 9] = te[9];
-    array[offset + 10] = te[10];
-    array[offset + 11] = te[11];
-    array[offset + 12] = te[12];
-    array[offset + 13] = te[13];
-    array[offset + 14] = te[14];
-    array[offset + 15] = te[15];
-    return array;
-  }
-
-}
-
-exports.Matrix4 = Matrix4;
-Matrix4.prototype.isMatrix4 = true;
-
-const _v1$1 =
-/*@__PURE__*/
-new Vector3();
-
-const _m1 =
-/*@__PURE__*/
-new Matrix4();
-
-const _zero =
-/*@__PURE__*/
-new Vector3(0, 0, 0);
-
-const _one =
-/*@__PURE__*/
-new Vector3(1, 1, 1);
-
-const _x =
-/*@__PURE__*/
-new Vector3();
-
-const _y =
-/*@__PURE__*/
-new Vector3();
-
-const _z =
-/*@__PURE__*/
-new Vector3();
-
-const _matrix =
-/*@__PURE__*/
-new Matrix4();
-
-const _quaternion$1 =
-/*@__PURE__*/
-new Quaternion();
-
-class Euler {
-  constructor(x = 0, y = 0, z = 0, order = Euler.DefaultOrder) {
-    this._x = x;
-    this._y = y;
-    this._z = z;
-    this._order = order;
-  }
-
-  get x() {
-    return this._x;
-  }
-
-  set x(value) {
-    this._x = value;
-
-    this._onChangeCallback();
-  }
-
-  get y() {
-    return this._y;
-  }
-
-  set y(value) {
-    this._y = value;
-
-    this._onChangeCallback();
-  }
-
-  get z() {
-    return this._z;
-  }
-
-  set z(value) {
-    this._z = value;
-
-    this._onChangeCallback();
-  }
-
-  get order() {
-    return this._order;
-  }
-
-  set order(value) {
-    this._order = value;
-
-    this._onChangeCallback();
-  }
-
-  set(x, y, z, order) {
-    this._x = x;
-    this._y = y;
-    this._z = z;
-    this._order = order || this._order;
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  clone() {
-    return new this.constructor(this._x, this._y, this._z, this._order);
-  }
-
-  copy(euler) {
-    this._x = euler._x;
-    this._y = euler._y;
-    this._z = euler._z;
-    this._order = euler._order;
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  setFromRotationMatrix(m, order, update) {
-    const clamp = MathUtils.clamp; // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
-    const te = m.elements;
-    const m11 = te[0],
-          m12 = te[4],
-          m13 = te[8];
-    const m21 = te[1],
-          m22 = te[5],
-          m23 = te[9];
-    const m31 = te[2],
-          m32 = te[6],
-          m33 = te[10];
-    order = order || this._order;
-
-    switch (order) {
-      case 'XYZ':
-        this._y = Math.asin(clamp(m13, -1, 1));
-
-        if (Math.abs(m13) < 0.9999999) {
-          this._x = Math.atan2(-m23, m33);
-          this._z = Math.atan2(-m12, m11);
-        } else {
-          this._x = Math.atan2(m32, m22);
-          this._z = 0;
-        }
-
-        break;
-
-      case 'YXZ':
-        this._x = Math.asin(-clamp(m23, -1, 1));
-
-        if (Math.abs(m23) < 0.9999999) {
-          this._y = Math.atan2(m13, m33);
-          this._z = Math.atan2(m21, m22);
-        } else {
-          this._y = Math.atan2(-m31, m11);
-          this._z = 0;
-        }
-
-        break;
-
-      case 'ZXY':
-        this._x = Math.asin(clamp(m32, -1, 1));
-
-        if (Math.abs(m32) < 0.9999999) {
-          this._y = Math.atan2(-m31, m33);
-          this._z = Math.atan2(-m12, m22);
-        } else {
-          this._y = 0;
-          this._z = Math.atan2(m21, m11);
-        }
-
-        break;
-
-      case 'ZYX':
-        this._y = Math.asin(-clamp(m31, -1, 1));
-
-        if (Math.abs(m31) < 0.9999999) {
-          this._x = Math.atan2(m32, m33);
-          this._z = Math.atan2(m21, m11);
-        } else {
-          this._x = 0;
-          this._z = Math.atan2(-m12, m22);
-        }
-
-        break;
-
-      case 'YZX':
-        this._z = Math.asin(clamp(m21, -1, 1));
-
-        if (Math.abs(m21) < 0.9999999) {
-          this._x = Math.atan2(-m23, m22);
-          this._y = Math.atan2(-m31, m11);
-        } else {
-          this._x = 0;
-          this._y = Math.atan2(m13, m33);
-        }
-
-        break;
-
-      case 'XZY':
-        this._z = Math.asin(-clamp(m12, -1, 1));
-
-        if (Math.abs(m12) < 0.9999999) {
-          this._x = Math.atan2(m32, m22);
-          this._y = Math.atan2(m13, m11);
-        } else {
-          this._x = Math.atan2(-m23, m33);
-          this._y = 0;
-        }
-
-        break;
-
-      default:
-        console.warn('THREE.Euler: .setFromRotationMatrix() encountered an unknown order: ' + order);
-    }
-
-    this._order = order;
-    if (update !== false) this._onChangeCallback();
-    return this;
-  }
-
-  setFromQuaternion(q, order, update) {
-    _matrix.makeRotationFromQuaternion(q);
-
-    return this.setFromRotationMatrix(_matrix, order, update);
-  }
-
-  setFromVector3(v, order) {
-    return this.set(v.x, v.y, v.z, order || this._order);
-  }
-
-  reorder(newOrder) {
-    // WARNING: this discards revolution information -bhouston
-    _quaternion$1.setFromEuler(this);
-
-    return this.setFromQuaternion(_quaternion$1, newOrder);
-  }
-
-  equals(euler) {
-    return euler._x === this._x && euler._y === this._y && euler._z === this._z && euler._order === this._order;
-  }
-
-  fromArray(array) {
-    this._x = array[0];
-    this._y = array[1];
-    this._z = array[2];
-    if (array[3] !== undefined) this._order = array[3];
-
-    this._onChangeCallback();
-
-    return this;
-  }
-
-  toArray(array = [], offset = 0) {
-    array[offset] = this._x;
-    array[offset + 1] = this._y;
-    array[offset + 2] = this._z;
-    array[offset + 3] = this._order;
-    return array;
-  }
-
-  toVector3(optionalResult) {
-    if (optionalResult) {
-      return optionalResult.set(this._x, this._y, this._z);
-    } else {
-      return new Vector3(this._x, this._y, this._z);
-    }
-  }
-
-  _onChange(callback) {
-    this._onChangeCallback = callback;
-    return this;
-  }
-
-  _onChangeCallback() {}
-
-}
-
-exports.Euler = Euler;
-Euler.prototype.isEuler = true;
-Euler.DefaultOrder = 'XYZ';
-Euler.RotationOrders = ['XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX'];
-
-class Layers {
-  constructor() {
-    this.mask = 1 | 0;
-  }
-
-  set(channel) {
-    this.mask = 1 << channel | 0;
-  }
-
-  enable(channel) {
-    this.mask |= 1 << channel | 0;
-  }
-
-  enableAll() {
-    this.mask = 0xffffffff | 0;
-  }
-
-  toggle(channel) {
-    this.mask ^= 1 << channel | 0;
-  }
-
-  disable(channel) {
-    this.mask &= ~(1 << channel | 0);
-  }
-
-  disableAll() {
-    this.mask = 0;
-  }
-
-  test(layers) {
-    return (this.mask & layers.mask) !== 0;
-  }
-
-}
-
-exports.Layers = Layers;
-let _object3DId = 0;
-
-const _v1$2 = new Vector3();
-
-const _q1 = new Quaternion();
-
-const _m1$1 = new Matrix4();
-
-const _target = new Vector3();
-
-const _position = new Vector3();
-
-const _scale = new Vector3();
-
-const _quaternion$2 = new Quaternion();
-
-const _xAxis = new Vector3(1, 0, 0);
-
-const _yAxis = new Vector3(0, 1, 0);
-
-const _zAxis = new Vector3(0, 0, 1);
-
-const _addedEvent = {
-  type: 'added'
-};
-const _removedEvent = {
-  type: 'removed'
-};
-
-function Object3D() {
-  Object.defineProperty(this, 'id', {
-    value: _object3DId++
-  });
-  this.uuid = MathUtils.generateUUID();
-  this.name = '';
-  this.type = 'Object3D';
-  this.parent = null;
-  this.children = [];
-  this.up = Object3D.DefaultUp.clone();
-  const position = new Vector3();
-  const rotation = new Euler();
-  const quaternion = new Quaternion();
-  const scale = new Vector3(1, 1, 1);
-
-  function onRotationChange() {
-    quaternion.setFromEuler(rotation, false);
-  }
-
-  function onQuaternionChange() {
-    rotation.setFromQuaternion(quaternion, undefined, false);
-  }
-
-  rotation._onChange(onRotationChange);
-
-  quaternion._onChange(onQuaternionChange);
-
-  Object.defineProperties(this, {
-    position: {
-      configurable: true,
-      enumerable: true,
-      value: position
-    },
-    rotation: {
-      configurable: true,
-      enumerable: true,
-      value: rotation
-    },
-    quaternion: {
-      configurable: true,
-      enumerable: true,
-      value: quaternion
-    },
-    scale: {
-      configurable: true,
-      enumerable: true,
-      value: scale
-    },
-    modelViewMatrix: {
-      value: new Matrix4()
-    },
-    normalMatrix: {
-      value: new Matrix3()
-    }
-  });
-  this.matrix = new Matrix4();
-  this.matrixWorld = new Matrix4();
-  this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
-  this.matrixWorldNeedsUpdate = false;
-  this.layers = new Layers();
-  this.visible = true;
-  this.castShadow = false;
-  this.receiveShadow = false;
-  this.frustumCulled = true;
-  this.renderOrder = 0;
-  this.animations = [];
-  this.userData = {};
-}
-
-Object3D.DefaultUp = new Vector3(0, 1, 0);
-Object3D.DefaultMatrixAutoUpdate = true;
-Object3D.prototype = Object.assign(Object.create(EventDispatcher.prototype), {
-  constructor: Object3D,
-  isObject3D: true,
-  onBeforeRender: function () {},
-  onAfterRender: function () {},
-  applyMatrix4: function (matrix) {
-    if (this.matrixAutoUpdate) this.updateMatrix();
-    this.matrix.premultiply(matrix);
-    this.matrix.decompose(this.position, this.quaternion, this.scale);
-  },
-  applyQuaternion: function (q) {
-    this.quaternion.premultiply(q);
-    return this;
-  },
-  setRotationFromAxisAngle: function (axis, angle) {
-    // assumes axis is normalized
-    this.quaternion.setFromAxisAngle(axis, angle);
-  },
-  setRotationFromEuler: function (euler) {
-    this.quaternion.setFromEuler(euler, true);
-  },
-  setRotationFromMatrix: function (m) {
-    // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-    this.quaternion.setFromRotationMatrix(m);
-  },
-  setRotationFromQuaternion: function (q) {
-    // assumes q is normalized
-    this.quaternion.copy(q);
-  },
-  rotateOnAxis: function (axis, angle) {
-    // rotate object on axis in object space
-    // axis is assumed to be normalized
-    _q1.setFromAxisAngle(axis, angle);
-
-    this.quaternion.multiply(_q1);
-    return this;
-  },
-  rotateOnWorldAxis: function (axis, angle) {
-    // rotate object on axis in world space
-    // axis is assumed to be normalized
-    // method assumes no rotated parent
-    _q1.setFromAxisAngle(axis, angle);
-
-    this.quaternion.premultiply(_q1);
-    return this;
-  },
-  rotateX: function (angle) {
-    return this.rotateOnAxis(_xAxis, angle);
-  },
-  rotateY: function (angle) {
-    return this.rotateOnAxis(_yAxis, angle);
-  },
-  rotateZ: function (angle) {
-    return this.rotateOnAxis(_zAxis, angle);
-  },
-  translateOnAxis: function (axis, distance) {
-    // translate object by distance along axis in object space
-    // axis is assumed to be normalized
-    _v1$2.copy(axis).applyQuaternion(this.quaternion);
-
-    this.position.add(_v1$2.multiplyScalar(distance));
-    return this;
-  },
-  translateX: function (distance) {
-    return this.translateOnAxis(_xAxis, distance);
-  },
-  translateY: function (distance) {
-    return this.translateOnAxis(_yAxis, distance);
-  },
-  translateZ: function (distance) {
-    return this.translateOnAxis(_zAxis, distance);
-  },
-  localToWorld: function (vector) {
-    return vector.applyMatrix4(this.matrixWorld);
-  },
-  worldToLocal: function (vector) {
-    return vector.applyMatrix4(_m1$1.copy(this.matrixWorld).invert());
-  },
-  lookAt: function (x, y, z) {
-    // This method does not support objects having non-uniformly-scaled parent(s)
-    if (x.isVector3) {
-      _target.copy(x);
-    } else {
-      _target.set(x, y, z);
-    }
-
-    const parent = this.parent;
-    this.updateWorldMatrix(true, false);
-
-    _position.setFromMatrixPosition(this.matrixWorld);
-
-    if (this.isCamera || this.isLight) {
-      _m1$1.lookAt(_position, _target, this.up);
-    } else {
-      _m1$1.lookAt(_target, _position, this.up);
-    }
-
-    this.quaternion.setFromRotationMatrix(_m1$1);
-
-    if (parent) {
-      _m1$1.extractRotation(parent.matrixWorld);
-
-      _q1.setFromRotationMatrix(_m1$1);
-
-      this.quaternion.premultiply(_q1.invert());
-    }
-  },
-  add: function (object) {
-    if (arguments.length > 1) {
-      for (let i = 0; i < arguments.length; i++) {
-        this.add(arguments[i]);
-      }
-
-      return this;
-    }
-
-    if (object === this) {
-      console.error('THREE.Object3D.add: object can\'t be added as a child of itself.', object);
-      return this;
-    }
-
-    if (object && object.isObject3D) {
-      if (object.parent !== null) {
-        object.parent.remove(object);
-      }
-
-      object.parent = this;
-      this.children.push(object);
-      object.dispatchEvent(_addedEvent);
-    } else {
-      console.error('THREE.Object3D.add: object not an instance of THREE.Object3D.', object);
-    }
-
-    return this;
-  },
-  remove: function (object) {
-    if (arguments.length > 1) {
-      for (let i = 0; i < arguments.length; i++) {
-        this.remove(arguments[i]);
-      }
-
-      return this;
-    }
-
-    const index = this.children.indexOf(object);
-
-    if (index !== -1) {
-      object.parent = null;
-      this.children.splice(index, 1);
-      object.dispatchEvent(_removedEvent);
-    }
-
-    return this;
-  },
-  clear: function () {
-    for (let i = 0; i < this.children.length; i++) {
-      const object = this.children[i];
-      object.parent = null;
-      object.dispatchEvent(_removedEvent);
-    }
-
-    this.children.length = 0;
-    return this;
-  },
-  attach: function (object) {
-    // adds object as a child of this, while maintaining the object's world transform
-    this.updateWorldMatrix(true, false);
-
-    _m1$1.copy(this.matrixWorld).invert();
-
-    if (object.parent !== null) {
-      object.parent.updateWorldMatrix(true, false);
-
-      _m1$1.multiply(object.parent.matrixWorld);
-    }
-
-    object.applyMatrix4(_m1$1);
-    this.add(object);
-    object.updateWorldMatrix(false, true);
-    return this;
-  },
-  getObjectById: function (id) {
-    return this.getObjectByProperty('id', id);
-  },
-  getObjectByName: function (name) {
-    return this.getObjectByProperty('name', name);
-  },
-  getObjectByProperty: function (name, value) {
-    if (this[name] === value) return this;
-
-    for (let i = 0, l = this.children.length; i < l; i++) {
-      const child = this.children[i];
-      const object = child.getObjectByProperty(name, value);
-
-      if (object !== undefined) {
-        return object;
-      }
-    }
-
-    return undefined;
-  },
-  getWorldPosition: function (target) {
-    if (target === undefined) {
-      console.warn('THREE.Object3D: .getWorldPosition() target is now required');
-      target = new Vector3();
-    }
-
-    this.updateWorldMatrix(true, false);
-    return target.setFromMatrixPosition(this.matrixWorld);
-  },
-  getWorldQuaternion: function (target) {
-    if (target === undefined) {
-      console.warn('THREE.Object3D: .getWorldQuaternion() target is now required');
-      target = new Quaternion();
-    }
-
-    this.updateWorldMatrix(true, false);
-    this.matrixWorld.decompose(_position, target, _scale);
-    return target;
-  },
-  getWorldScale: function (target) {
-    if (target === undefined) {
-      console.warn('THREE.Object3D: .getWorldScale() target is now required');
-      target = new Vector3();
-    }
-
-    this.updateWorldMatrix(true, false);
-    this.matrixWorld.decompose(_position, _quaternion$2, target);
-    return target;
-  },
-  getWorldDirection: function (target) {
-    if (target === undefined) {
-      console.warn('THREE.Object3D: .getWorldDirection() target is now required');
-      target = new Vector3();
-    }
-
-    this.updateWorldMatrix(true, false);
-    const e = this.matrixWorld.elements;
-    return target.set(e[8], e[9], e[10]).normalize();
-  },
-  raycast: function () {},
-  traverse: function (callback) {
-    callback(this);
-    const children = this.children;
-
-    for (let i = 0, l = children.length; i < l; i++) {
-      children[i].traverse(callback);
-    }
-  },
-  traverseVisible: function (callback) {
-    if (this.visible === false) return;
-    callback(this);
-    const children = this.children;
-
-    for (let i = 0, l = children.length; i < l; i++) {
-      children[i].traverseVisible(callback);
-    }
-  },
-  traverseAncestors: function (callback) {
-    const parent = this.parent;
-
-    if (parent !== null) {
-      callback(parent);
-      parent.traverseAncestors(callback);
-    }
-  },
-  updateMatrix: function () {
-    this.matrix.compose(this.position, this.quaternion, this.scale);
-    this.matrixWorldNeedsUpdate = true;
-  },
-  updateMatrixWorld: function (force) {
-    if (this.matrixAutoUpdate) this.updateMatrix();
-
-    if (this.matrixWorldNeedsUpdate || force) {
-      if (this.parent === null) {
-        this.matrixWorld.copy(this.matrix);
-      } else {
-        this.matrixWorld.multiplyMatrices(this.parent.matrixWorld, this.matrix);
-      }
-
-      this.matrixWorldNeedsUpdate = false;
-      force = true;
-    } // update children
-
-
-    const children = this.children;
-
-    for (let i = 0, l = children.length; i < l; i++) {
-      children[i].updateMatrixWorld(force);
-    }
-  },
-  updateWorldMatrix: function (updateParents, updateChildren) {
-    const parent = this.parent;
-
-    if (updateParents === true && parent !== null) {
-      parent.updateWorldMatrix(true, false);
-    }
-
-    if (this.matrixAutoUpdate) this.updateMatrix();
-
-    if (this.parent === null) {
-      this.matrixWorld.copy(this.matrix);
-    } else {
-      this.matrixWorld.multiplyMatrices(this.parent.matrixWorld, this.matrix);
-    } // update children
-
-
-    if (updateChildren === true) {
-      const children = this.children;
-
-      for (let i = 0, l = children.length; i < l; i++) {
-        children[i].updateWorldMatrix(false, true);
-      }
-    }
-  },
-  toJSON: function (meta) {
-    // meta is a string when called from JSON.stringify
-    const isRootObject = meta === undefined || typeof meta === 'string';
-    const output = {}; // meta is a hash used to collect geometries, materials.
-    // not providing it implies that this is the root object
-    // being serialized.
-
-    if (isRootObject) {
-      // initialize meta obj
-      meta = {
-        geometries: {},
-        materials: {},
-        textures: {},
-        images: {},
-        shapes: {},
-        skeletons: {},
-        animations: {}
-      };
-      output.metadata = {
-        version: 4.5,
-        type: 'Object',
-        generator: 'Object3D.toJSON'
-      };
-    } // standard Object3D serialization
-
-
-    const object = {};
-    object.uuid = this.uuid;
-    object.type = this.type;
-    if (this.name !== '') object.name = this.name;
-    if (this.castShadow === true) object.castShadow = true;
-    if (this.receiveShadow === true) object.receiveShadow = true;
-    if (this.visible === false) object.visible = false;
-    if (this.frustumCulled === false) object.frustumCulled = false;
-    if (this.renderOrder !== 0) object.renderOrder = this.renderOrder;
-    if (JSON.stringify(this.userData) !== '{}') object.userData = this.userData;
-    object.layers = this.layers.mask;
-    object.matrix = this.matrix.toArray();
-    if (this.matrixAutoUpdate === false) object.matrixAutoUpdate = false; // object specific properties
-
-    if (this.isInstancedMesh) {
-      object.type = 'InstancedMesh';
-      object.count = this.count;
-      object.instanceMatrix = this.instanceMatrix.toJSON();
-    } //
-
-
-    function serialize(library, element) {
-      if (library[element.uuid] === undefined) {
-        library[element.uuid] = element.toJSON(meta);
-      }
-
-      return element.uuid;
-    }
-
-    if (this.isMesh || this.isLine || this.isPoints) {
-      object.geometry = serialize(meta.geometries, this.geometry);
-      const parameters = this.geometry.parameters;
-
-      if (parameters !== undefined && parameters.shapes !== undefined) {
-        const shapes = parameters.shapes;
-
-        if (Array.isArray(shapes)) {
-          for (let i = 0, l = shapes.length; i < l; i++) {
-            const shape = shapes[i];
-            serialize(meta.shapes, shape);
-          }
-        } else {
-          serialize(meta.shapes, shapes);
-        }
-      }
-    }
-
-    if (this.isSkinnedMesh) {
-      object.bindMode = this.bindMode;
-      object.bindMatrix = this.bindMatrix.toArray();
-
-      if (this.skeleton !== undefined) {
-        serialize(meta.skeletons, this.skeleton);
-        object.skeleton = this.skeleton.uuid;
-      }
-    }
-
-    if (this.material !== undefined) {
-      if (Array.isArray(this.material)) {
-        const uuids = [];
-
-        for (let i = 0, l = this.material.length; i < l; i++) {
-          uuids.push(serialize(meta.materials, this.material[i]));
-        }
-
-        object.material = uuids;
-      } else {
-        object.material = serialize(meta.materials, this.material);
-      }
-    } //
-
-
-    if (this.children.length > 0) {
-      object.children = [];
-
-      for (let i = 0; i < this.children.length; i++) {
-        object.children.push(this.children[i].toJSON(meta).object);
-      }
-    } //
-
-
-    if (this.animations.length > 0) {
-      object.animations = [];
-
-      for (let i = 0; i < this.animations.length; i++) {
-        const animation = this.animations[i];
-        object.animations.push(serialize(meta.animations, animation));
-      }
-    }
-
-    if (isRootObject) {
-      const geometries = extractFromCache(meta.geometries);
-      const materials = extractFromCache(meta.materials);
-      const textures = extractFromCache(meta.textures);
-      const images = extractFromCache(meta.images);
-      const shapes = extractFromCache(meta.shapes);
-      const skeletons = extractFromCache(meta.skeletons);
-      const animations = extractFromCache(meta.animations);
-      if (geometries.length > 0) output.geometries = geometries;
-      if (materials.length > 0) output.materials = materials;
-      if (textures.length > 0) output.textures = textures;
-      if (images.length > 0) output.images = images;
-      if (shapes.length > 0) output.shapes = shapes;
-      if (skeletons.length > 0) output.skeletons = skeletons;
-      if (animations.length > 0) output.animations = animations;
-    }
-
-    output.object = object;
-    return output; // extract data from the cache hash
-    // remove metadata on each item
-    // and return as array
-
-    function extractFromCache(cache) {
-      const values = [];
-
-      for (const key in cache) {
-        const data = cache[key];
-        delete data.metadata;
-        values.push(data);
-      }
-
-      return values;
-    }
-  },
-  clone: function (recursive) {
-    return new this.constructor().copy(this, recursive);
-  },
-  copy: function (source, recursive = true) {
-    this.name = source.name;
-    this.up.copy(source.up);
-    this.position.copy(source.position);
-    this.rotation.order = source.rotation.order;
-    this.quaternion.copy(source.quaternion);
-    this.scale.copy(source.scale);
-    this.matrix.copy(source.matrix);
-    this.matrixWorld.copy(source.matrixWorld);
-    this.matrixAutoUpdate = source.matrixAutoUpdate;
-    this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;
-    this.layers.mask = source.layers.mask;
-    this.visible = source.visible;
-    this.castShadow = source.castShadow;
-    this.receiveShadow = source.receiveShadow;
-    this.frustumCulled = source.frustumCulled;
-    this.renderOrder = source.renderOrder;
-    this.userData = JSON.parse(JSON.stringify(source.userData));
-
-    if (recursive === true) {
-      for (let i = 0; i < source.children.length; i++) {
-        const child = source.children[i];
-        this.add(child.clone());
-      }
-    }
-
-    return this;
-  }
-});
-
-const _vector1 =
-/*@__PURE__*/
-new Vector3();
-
-const _vector2 =
-/*@__PURE__*/
-new Vector3();
-
-const _normalMatrix =
-/*@__PURE__*/
-new Matrix3();
-
-class Plane {
-  constructor(normal = new Vector3(1, 0, 0), constant = 0) {
-    // normal is assumed to be normalized
-    this.normal = normal;
-    this.constant = constant;
-  }
-
-  set(normal, constant) {
-    this.normal.copy(normal);
-    this.constant = constant;
-    return this;
-  }
-
-  setComponents(x, y, z, w) {
-    this.normal.set(x, y, z);
-    this.constant = w;
-    return this;
-  }
-
-  setFromNormalAndCoplanarPoint(normal, point) {
-    this.normal.copy(normal);
-    this.constant = -point.dot(this.normal);
-    return this;
-  }
-
-  setFromCoplanarPoints(a, b, c) {
-    const normal = _vector1.subVectors(c, b).cross(_vector2.subVectors(a, b)).normalize(); // Q: should an error be thrown if normal is zero (e.g. degenerate plane)?
-
-
-    this.setFromNormalAndCoplanarPoint(normal, a);
-    return this;
-  }
-
-  copy(plane) {
-    this.normal.copy(plane.normal);
-    this.constant = plane.constant;
-    return this;
-  }
-
-  normalize() {
-    // Note: will lead to a divide by zero if the plane is invalid.
-    const inverseNormalLength = 1.0 / this.normal.length();
-    this.normal.multiplyScalar(inverseNormalLength);
-    this.constant *= inverseNormalLength;
-    return this;
-  }
-
-  negate() {
-    this.constant *= -1;
-    this.normal.negate();
-    return this;
-  }
-
-  distanceToPoint(point) {
-    return this.normal.dot(point) + this.constant;
-  }
-
-  distanceToSphere(sphere) {
-    return this.distanceToPoint(sphere.center) - sphere.radius;
-  }
-
-  projectPoint(point, target) {
-    if (target === undefined) {
-      console.warn('THREE.Plane: .projectPoint() target is now required');
-      target = new Vector3();
-    }
-
-    return target.copy(this.normal).multiplyScalar(-this.distanceToPoint(point)).add(point);
-  }
-
-  intersectLine(line, target) {
-    if (target === undefined) {
-      console.warn('THREE.Plane: .intersectLine() target is now required');
-      target = new Vector3();
-    }
-
-    const direction = line.delta(_vector1);
-    const denominator = this.normal.dot(direction);
-
-    if (denominator === 0) {
-      // line is coplanar, return origin
-      if (this.distanceToPoint(line.start) === 0) {
-        return target.copy(line.start);
-      } // Unsure if this is the correct method to handle this case.
-
-
-      return undefined;
-    }
-
-    const t = -(line.start.dot(this.normal) + this.constant) / denominator;
-
-    if (t < 0 || t > 1) {
-      return undefined;
-    }
-
-    return target.copy(direction).multiplyScalar(t).add(line.start);
-  }
-
-  intersectsLine(line) {
-    // Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.
-    const startSign = this.distanceToPoint(line.start);
-    const endSign = this.distanceToPoint(line.end);
-    return startSign < 0 && endSign > 0 || endSign < 0 && startSign > 0;
-  }
-
-  intersectsBox(box) {
-    return box.intersectsPlane(this);
-  }
-
-  intersectsSphere(sphere) {
-    return sphere.intersectsPlane(this);
-  }
-
-  coplanarPoint(target) {
-    if (target === undefined) {
-      console.warn('THREE.Plane: .coplanarPoint() target is now required');
-      target = new Vector3();
-    }
-
-    return target.copy(this.normal).multiplyScalar(-this.constant);
-  }
-
-  applyMatrix4(matrix, optionalNormalMatrix) {
-    const normalMatrix = optionalNormalMatrix || _normalMatrix.getNormalMatrix(matrix);
-
-    const referencePoint = this.coplanarPoint(_vector1).applyMatrix4(matrix);
-    const normal = this.normal.applyMatrix3(normalMatrix).normalize();
-    this.constant = -referencePoint.dot(normal);
-    return this;
-  }
-
-  translate(offset) {
-    this.constant -= offset.dot(this.normal);
-    return this;
-  }
-
-  equals(plane) {
-    return plane.normal.equals(this.normal) && plane.constant === this.constant;
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-}
-
-exports.Plane = Plane;
-Plane.prototype.isPlane = true;
-
-const _v0$1 =
-/*@__PURE__*/
-new Vector3();
-
-const _v1$3 =
-/*@__PURE__*/
-new Vector3();
-
-const _v2$1 =
-/*@__PURE__*/
-new Vector3();
-
-const _v3 =
-/*@__PURE__*/
-new Vector3();
-
-const _vab =
-/*@__PURE__*/
-new Vector3();
-
-const _vac =
-/*@__PURE__*/
-new Vector3();
-
-const _vbc =
-/*@__PURE__*/
-new Vector3();
-
-const _vap =
-/*@__PURE__*/
-new Vector3();
-
-const _vbp =
-/*@__PURE__*/
-new Vector3();
-
-const _vcp =
-/*@__PURE__*/
-new Vector3();
-
-class Triangle {
-  constructor(a = new Vector3(), b = new Vector3(), c = new Vector3()) {
-    this.a = a;
-    this.b = b;
-    this.c = c;
-  }
-
-  static getNormal(a, b, c, target) {
-    if (target === undefined) {
-      console.warn('THREE.Triangle: .getNormal() target is now required');
-      target = new Vector3();
-    }
-
-    target.subVectors(c, b);
-
-    _v0$1.subVectors(a, b);
-
-    target.cross(_v0$1);
-    const targetLengthSq = target.lengthSq();
-
-    if (targetLengthSq > 0) {
-      return target.multiplyScalar(1 / Math.sqrt(targetLengthSq));
-    }
-
-    return target.set(0, 0, 0);
-  } // static/instance method to calculate barycentric coordinates
-  // based on: http://www.blackpawn.com/texts/pointinpoly/default.html
-
-
-  static getBarycoord(point, a, b, c, target) {
-    _v0$1.subVectors(c, a);
-
-    _v1$3.subVectors(b, a);
-
-    _v2$1.subVectors(point, a);
-
-    const dot00 = _v0$1.dot(_v0$1);
-
-    const dot01 = _v0$1.dot(_v1$3);
-
-    const dot02 = _v0$1.dot(_v2$1);
-
-    const dot11 = _v1$3.dot(_v1$3);
-
-    const dot12 = _v1$3.dot(_v2$1);
-
-    const denom = dot00 * dot11 - dot01 * dot01;
-
-    if (target === undefined) {
-      console.warn('THREE.Triangle: .getBarycoord() target is now required');
-      target = new Vector3();
-    } // collinear or singular triangle
-
-
-    if (denom === 0) {
-      // arbitrary location outside of triangle?
-      // not sure if this is the best idea, maybe should be returning undefined
-      return target.set(-2, -1, -1);
-    }
-
-    const invDenom = 1 / denom;
-    const u = (dot11 * dot02 - dot01 * dot12) * invDenom;
-    const v = (dot00 * dot12 - dot01 * dot02) * invDenom; // barycentric coordinates must always sum to 1
-
-    return target.set(1 - u - v, v, u);
-  }
-
-  static containsPoint(point, a, b, c) {
-    this.getBarycoord(point, a, b, c, _v3);
-    return _v3.x >= 0 && _v3.y >= 0 && _v3.x + _v3.y <= 1;
-  }
-
-  static getUV(point, p1, p2, p3, uv1, uv2, uv3, target) {
-    this.getBarycoord(point, p1, p2, p3, _v3);
-    target.set(0, 0);
-    target.addScaledVector(uv1, _v3.x);
-    target.addScaledVector(uv2, _v3.y);
-    target.addScaledVector(uv3, _v3.z);
-    return target;
-  }
-
-  static isFrontFacing(a, b, c, direction) {
-    _v0$1.subVectors(c, b);
-
-    _v1$3.subVectors(a, b); // strictly front facing
-
-
-    return _v0$1.cross(_v1$3).dot(direction) < 0 ? true : false;
-  }
-
-  set(a, b, c) {
-    this.a.copy(a);
-    this.b.copy(b);
-    this.c.copy(c);
-    return this;
-  }
-
-  setFromPointsAndIndices(points, i0, i1, i2) {
-    this.a.copy(points[i0]);
-    this.b.copy(points[i1]);
-    this.c.copy(points[i2]);
-    return this;
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-  copy(triangle) {
-    this.a.copy(triangle.a);
-    this.b.copy(triangle.b);
-    this.c.copy(triangle.c);
-    return this;
-  }
-
-  getArea() {
-    _v0$1.subVectors(this.c, this.b);
-
-    _v1$3.subVectors(this.a, this.b);
-
-    return _v0$1.cross(_v1$3).length() * 0.5;
-  }
-
-  getMidpoint(target) {
-    if (target === undefined) {
-      console.warn('THREE.Triangle: .getMidpoint() target is now required');
-      target = new Vector3();
-    }
-
-    return target.addVectors(this.a, this.b).add(this.c).multiplyScalar(1 / 3);
-  }
-
-  getNormal(target) {
-    return Triangle.getNormal(this.a, this.b, this.c, target);
-  }
-
-  getPlane(target) {
-    if (target === undefined) {
-      console.warn('THREE.Triangle: .getPlane() target is now required');
-      target = new Plane();
-    }
-
-    return target.setFromCoplanarPoints(this.a, this.b, this.c);
-  }
-
-  getBarycoord(point, target) {
-    return Triangle.getBarycoord(point, this.a, this.b, this.c, target);
-  }
-
-  getUV(point, uv1, uv2, uv3, target) {
-    return Triangle.getUV(point, this.a, this.b, this.c, uv1, uv2, uv3, target);
-  }
-
-  containsPoint(point) {
-    return Triangle.containsPoint(point, this.a, this.b, this.c);
-  }
-
-  isFrontFacing(direction) {
-    return Triangle.isFrontFacing(this.a, this.b, this.c, direction);
-  }
-
-  intersectsBox(box) {
-    return box.intersectsTriangle(this);
-  }
-
-  closestPointToPoint(p, target) {
-    if (target === undefined) {
-      console.warn('THREE.Triangle: .closestPointToPoint() target is now required');
-      target = new Vector3();
-    }
-
-    const a = this.a,
-          b = this.b,
-          c = this.c;
-    let v, w; // algorithm thanks to Real-Time Collision Detection by Christer Ericson,
-    // published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,
-    // under the accompanying license; see chapter 5.1.5 for detailed explanation.
-    // basically, we're distinguishing which of the voronoi regions of the triangle
-    // the point lies in with the minimum amount of redundant computation.
-
-    _vab.subVectors(b, a);
-
-    _vac.subVectors(c, a);
-
-    _vap.subVectors(p, a);
-
-    const d1 = _vab.dot(_vap);
-
-    const d2 = _vac.dot(_vap);
-
-    if (d1 <= 0 && d2 <= 0) {
-      // vertex region of A; barycentric coords (1, 0, 0)
-      return target.copy(a);
-    }
-
-    _vbp.subVectors(p, b);
-
-    const d3 = _vab.dot(_vbp);
-
-    const d4 = _vac.dot(_vbp);
-
-    if (d3 >= 0 && d4 <= d3) {
-      // vertex region of B; barycentric coords (0, 1, 0)
-      return target.copy(b);
-    }
-
-    const vc = d1 * d4 - d3 * d2;
-
-    if (vc <= 0 && d1 >= 0 && d3 <= 0) {
-      v = d1 / (d1 - d3); // edge region of AB; barycentric coords (1-v, v, 0)
-
-      return target.copy(a).addScaledVector(_vab, v);
-    }
-
-    _vcp.subVectors(p, c);
-
-    const d5 = _vab.dot(_vcp);
-
-    const d6 = _vac.dot(_vcp);
-
-    if (d6 >= 0 && d5 <= d6) {
-      // vertex region of C; barycentric coords (0, 0, 1)
-      return target.copy(c);
-    }
-
-    const vb = d5 * d2 - d1 * d6;
-
-    if (vb <= 0 && d2 >= 0 && d6 <= 0) {
-      w = d2 / (d2 - d6); // edge region of AC; barycentric coords (1-w, 0, w)
-
-      return target.copy(a).addScaledVector(_vac, w);
-    }
-
-    const va = d3 * d6 - d5 * d4;
-
-    if (va <= 0 && d4 - d3 >= 0 && d5 - d6 >= 0) {
-      _vbc.subVectors(c, b);
-
-      w = (d4 - d3) / (d4 - d3 + (d5 - d6)); // edge region of BC; barycentric coords (0, 1-w, w)
-
-      return target.copy(b).addScaledVector(_vbc, w); // edge region of BC
-    } // face region
-
-
-    const denom = 1 / (va + vb + vc); // u = va * denom
-
-    v = vb * denom;
-    w = vc * denom;
-    return target.copy(a).addScaledVector(_vab, v).addScaledVector(_vac, w);
-  }
-
-  equals(triangle) {
-    return triangle.a.equals(this.a) && triangle.b.equals(this.b) && triangle.c.equals(this.c);
-  }
-
-}
-
-exports.Triangle = Triangle;
-let materialId = 0;
-
-function Material() {
-  Object.defineProperty(this, 'id', {
-    value: materialId++
-  });
-  this.uuid = MathUtils.generateUUID();
-  this.name = '';
-  this.type = 'Material';
-  this.fog = true;
-  this.blending = NormalBlending;
-  this.side = FrontSide;
-  this.vertexColors = false;
-  this.opacity = 1;
-  this.transparent = false;
-  this.blendSrc = SrcAlphaFactor;
-  this.blendDst = OneMinusSrcAlphaFactor;
-  this.blendEquation = AddEquation;
-  this.blendSrcAlpha = null;
-  this.blendDstAlpha = null;
-  this.blendEquationAlpha = null;
-  this.depthFunc = LessEqualDepth;
-  this.depthTest = true;
-  this.depthWrite = true;
-  this.stencilWriteMask = 0xff;
-  this.stencilFunc = AlwaysStencilFunc;
-  this.stencilRef = 0;
-  this.stencilFuncMask = 0xff;
-  this.stencilFail = KeepStencilOp;
-  this.stencilZFail = KeepStencilOp;
-  this.stencilZPass = KeepStencilOp;
-  this.stencilWrite = false;
-  this.clippingPlanes = null;
-  this.clipIntersection = false;
-  this.clipShadows = false;
-  this.shadowSide = null;
-  this.colorWrite = true;
-  this.precision = null; // override the renderer's default precision for this material
-
-  this.polygonOffset = false;
-  this.polygonOffsetFactor = 0;
-  this.polygonOffsetUnits = 0;
-  this.dithering = false;
-  this.alphaTest = 0;
-  this.premultipliedAlpha = false;
-  this.visible = true;
-  this.toneMapped = true;
-  this.userData = {};
-  this.version = 0;
-}
-
-Material.prototype = Object.assign(Object.create(EventDispatcher.prototype), {
-  constructor: Material,
-  isMaterial: true,
-  onBeforeCompile: function ()
-  /* shaderobject, renderer */
-  {},
-  customProgramCacheKey: function () {
-    return this.onBeforeCompile.toString();
-  },
-  setValues: function (values) {
-    if (values === undefined) return;
-
-    for (const key in values) {
-      const newValue = values[key];
-
-      if (newValue === undefined) {
-        console.warn('THREE.Material: \'' + key + '\' parameter is undefined.');
-        continue;
-      } // for backward compatability if shading is set in the constructor
-
-
-      if (key === 'shading') {
-        console.warn('THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.');
-        this.flatShading = newValue === FlatShading ? true : false;
-        continue;
-      }
-
-      const currentValue = this[key];
-
-      if (currentValue === undefined) {
-        console.warn('THREE.' + this.type + ': \'' + key + '\' is not a property of this material.');
-        continue;
-      }
-
-      if (currentValue && currentValue.isColor) {
-        currentValue.set(newValue);
-      } else if (currentValue && currentValue.isVector3 && newValue && newValue.isVector3) {
-        currentValue.copy(newValue);
-      } else {
-        this[key] = newValue;
-      }
-    }
-  },
-  toJSON: function (meta) {
-    const isRoot = meta === undefined || typeof meta === 'string';
-
-    if (isRoot) {
-      meta = {
-        textures: {},
-        images: {}
-      };
-    }
-
-    const data = {
-      metadata: {
-        version: 4.5,
-        type: 'Material',
-        generator: 'Material.toJSON'
-      }
-    }; // standard Material serialization
-
-    data.uuid = this.uuid;
-    data.type = this.type;
-    if (this.name !== '') data.name = this.name;
-    if (this.color && this.color.isColor) data.color = this.color.getHex();
-    if (this.roughness !== undefined) data.roughness = this.roughness;
-    if (this.metalness !== undefined) data.metalness = this.metalness;
-    if (this.sheen && this.sheen.isColor) data.sheen = this.sheen.getHex();
-    if (this.emissive && this.emissive.isColor) data.emissive = this.emissive.getHex();
-    if (this.emissiveIntensity && this.emissiveIntensity !== 1) data.emissiveIntensity = this.emissiveIntensity;
-    if (this.specular && this.specular.isColor) data.specular = this.specular.getHex();
-    if (this.shininess !== undefined) data.shininess = this.shininess;
-    if (this.clearcoat !== undefined) data.clearcoat = this.clearcoat;
-    if (this.clearcoatRoughness !== undefined) data.clearcoatRoughness = this.clearcoatRoughness;
-
-    if (this.clearcoatMap && this.clearcoatMap.isTexture) {
-      data.clearcoatMap = this.clearcoatMap.toJSON(meta).uuid;
-    }
-
-    if (this.clearcoatRoughnessMap && this.clearcoatRoughnessMap.isTexture) {
-      data.clearcoatRoughnessMap = this.clearcoatRoughnessMap.toJSON(meta).uuid;
-    }
-
-    if (this.clearcoatNormalMap && this.clearcoatNormalMap.isTexture) {
-      data.clearcoatNormalMap = this.clearcoatNormalMap.toJSON(meta).uuid;
-      data.clearcoatNormalScale = this.clearcoatNormalScale.toArray();
-    }
-
-    if (this.map && this.map.isTexture) data.map = this.map.toJSON(meta).uuid;
-    if (this.matcap && this.matcap.isTexture) data.matcap = this.matcap.toJSON(meta).uuid;
-    if (this.alphaMap && this.alphaMap.isTexture) data.alphaMap = this.alphaMap.toJSON(meta).uuid;
-
-    if (this.lightMap && this.lightMap.isTexture) {
-      data.lightMap = this.lightMap.toJSON(meta).uuid;
-      data.lightMapIntensity = this.lightMapIntensity;
-    }
-
-    if (this.aoMap && this.aoMap.isTexture) {
-      data.aoMap = this.aoMap.toJSON(meta).uuid;
-      data.aoMapIntensity = this.aoMapIntensity;
-    }
-
-    if (this.bumpMap && this.bumpMap.isTexture) {
-      data.bumpMap = this.bumpMap.toJSON(meta).uuid;
-      data.bumpScale = this.bumpScale;
-    }
-
-    if (this.normalMap && this.normalMap.isTexture) {
-      data.normalMap = this.normalMap.toJSON(meta).uuid;
-      data.normalMapType = this.normalMapType;
-      data.normalScale = this.normalScale.toArray();
-    }
-
-    if (this.displacementMap && this.displacementMap.isTexture) {
-      data.displacementMap = this.displacementMap.toJSON(meta).uuid;
-      data.displacementScale = this.displacementScale;
-      data.displacementBias = this.displacementBias;
-    }
-
-    if (this.roughnessMap && this.roughnessMap.isTexture) data.roughnessMap = this.roughnessMap.toJSON(meta).uuid;
-    if (this.metalnessMap && this.metalnessMap.isTexture) data.metalnessMap = this.metalnessMap.toJSON(meta).uuid;
-    if (this.emissiveMap && this.emissiveMap.isTexture) data.emissiveMap = this.emissiveMap.toJSON(meta).uuid;
-    if (this.specularMap && this.specularMap.isTexture) data.specularMap = this.specularMap.toJSON(meta).uuid;
-
-    if (this.envMap && this.envMap.isTexture) {
-      data.envMap = this.envMap.toJSON(meta).uuid;
-      data.reflectivity = this.reflectivity; // Scale behind envMap
-
-      data.refractionRatio = this.refractionRatio;
-      if (this.combine !== undefined) data.combine = this.combine;
-      if (this.envMapIntensity !== undefined) data.envMapIntensity = this.envMapIntensity;
-    }
-
-    if (this.gradientMap && this.gradientMap.isTexture) {
-      data.gradientMap = this.gradientMap.toJSON(meta).uuid;
-    }
-
-    if (this.size !== undefined) data.size = this.size;
-    if (this.sizeAttenuation !== undefined) data.sizeAttenuation = this.sizeAttenuation;
-    if (this.blending !== NormalBlending) data.blending = this.blending;
-    if (this.side !== FrontSide) data.side = this.side;
-    if (this.vertexColors) data.vertexColors = true;
-    if (this.opacity < 1) data.opacity = this.opacity;
-    if (this.transparent === true) data.transparent = this.transparent;
-    data.depthFunc = this.depthFunc;
-    data.depthTest = this.depthTest;
-    data.depthWrite = this.depthWrite;
-    data.stencilWrite = this.stencilWrite;
-    data.stencilWriteMask = this.stencilWriteMask;
-    data.stencilFunc = this.stencilFunc;
-    data.stencilRef = this.stencilRef;
-    data.stencilFuncMask = this.stencilFuncMask;
-    data.stencilFail = this.stencilFail;
-    data.stencilZFail = this.stencilZFail;
-    data.stencilZPass = this.stencilZPass; // rotation (SpriteMaterial)
-
-    if (this.rotation && this.rotation !== 0) data.rotation = this.rotation;
-    if (this.polygonOffset === true) data.polygonOffset = true;
-    if (this.polygonOffsetFactor !== 0) data.polygonOffsetFactor = this.polygonOffsetFactor;
-    if (this.polygonOffsetUnits !== 0) data.polygonOffsetUnits = this.polygonOffsetUnits;
-    if (this.linewidth && this.linewidth !== 1) data.linewidth = this.linewidth;
-    if (this.dashSize !== undefined) data.dashSize = this.dashSize;
-    if (this.gapSize !== undefined) data.gapSize = this.gapSize;
-    if (this.scale !== undefined) data.scale = this.scale;
-    if (this.dithering === true) data.dithering = true;
-    if (this.alphaTest > 0) data.alphaTest = this.alphaTest;
-    if (this.premultipliedAlpha === true) data.premultipliedAlpha = this.premultipliedAlpha;
-    if (this.wireframe === true) data.wireframe = this.wireframe;
-    if (this.wireframeLinewidth > 1) data.wireframeLinewidth = this.wireframeLinewidth;
-    if (this.wireframeLinecap !== 'round') data.wireframeLinecap = this.wireframeLinecap;
-    if (this.wireframeLinejoin !== 'round') data.wireframeLinejoin = this.wireframeLinejoin;
-    if (this.morphTargets === true) data.morphTargets = true;
-    if (this.morphNormals === true) data.morphNormals = true;
-    if (this.skinning === true) data.skinning = true;
-    if (this.flatShading === true) data.flatShading = this.flatShading;
-    if (this.visible === false) data.visible = false;
-    if (this.toneMapped === false) data.toneMapped = false;
-    if (JSON.stringify(this.userData) !== '{}') data.userData = this.userData; // TODO: Copied from Object3D.toJSON
-
-    function extractFromCache(cache) {
-      const values = [];
-
-      for (const key in cache) {
-        const data = cache[key];
-        delete data.metadata;
-        values.push(data);
-      }
-
-      return values;
-    }
-
-    if (isRoot) {
-      const textures = extractFromCache(meta.textures);
-      const images = extractFromCache(meta.images);
-      if (textures.length > 0) data.textures = textures;
-      if (images.length > 0) data.images = images;
-    }
-
-    return data;
-  },
-  clone: function () {
-    return new this.constructor().copy(this);
-  },
-  copy: function (source) {
-    this.name = source.name;
-    this.fog = source.fog;
-    this.blending = source.blending;
-    this.side = source.side;
-    this.vertexColors = source.vertexColors;
-    this.opacity = source.opacity;
-    this.transparent = source.transparent;
-    this.blendSrc = source.blendSrc;
-    this.blendDst = source.blendDst;
-    this.blendEquation = source.blendEquation;
-    this.blendSrcAlpha = source.blendSrcAlpha;
-    this.blendDstAlpha = source.blendDstAlpha;
-    this.blendEquationAlpha = source.blendEquationAlpha;
-    this.depthFunc = source.depthFunc;
-    this.depthTest = source.depthTest;
-    this.depthWrite = source.depthWrite;
-    this.stencilWriteMask = source.stencilWriteMask;
-    this.stencilFunc = source.stencilFunc;
-    this.stencilRef = source.stencilRef;
-    this.stencilFuncMask = source.stencilFuncMask;
-    this.stencilFail = source.stencilFail;
-    this.stencilZFail = source.stencilZFail;
-    this.stencilZPass = source.stencilZPass;
-    this.stencilWrite = source.stencilWrite;
-    const srcPlanes = source.clippingPlanes;
-    let dstPlanes = null;
-
-    if (srcPlanes !== null) {
-      const n = srcPlanes.length;
-      dstPlanes = new Array(n);
-
-      for (let i = 0; i !== n; ++i) {
-        dstPlanes[i] = srcPlanes[i].clone();
-      }
-    }
-
-    this.clippingPlanes = dstPlanes;
-    this.clipIntersection = source.clipIntersection;
-    this.clipShadows = source.clipShadows;
-    this.shadowSide = source.shadowSide;
-    this.colorWrite = source.colorWrite;
-    this.precision = source.precision;
-    this.polygonOffset = source.polygonOffset;
-    this.polygonOffsetFactor = source.polygonOffsetFactor;
-    this.polygonOffsetUnits = source.polygonOffsetUnits;
-    this.dithering = source.dithering;
-    this.alphaTest = source.alphaTest;
-    this.premultipliedAlpha = source.premultipliedAlpha;
-    this.visible = source.visible;
-    this.toneMapped = source.toneMapped;
-    this.userData = JSON.parse(JSON.stringify(source.userData));
-    return this;
-  },
-  dispose: function () {
-    this.dispatchEvent({
-      type: 'dispose'
-    });
-  }
-});
-Object.defineProperty(Material.prototype, 'needsUpdate', {
-  set: function (value) {
-    if (value === true) this.version++;
-  }
-});
-const _colorKeywords = {
-  'aliceblue': 0xF0F8FF,
-  'antiquewhite': 0xFAEBD7,
-  'aqua': 0x00FFFF,
-  'aquamarine': 0x7FFFD4,
-  'azure': 0xF0FFFF,
-  'beige': 0xF5F5DC,
-  'bisque': 0xFFE4C4,
-  'black': 0x000000,
-  'blanchedalmond': 0xFFEBCD,
-  'blue': 0x0000FF,
-  'blueviolet': 0x8A2BE2,
-  'brown': 0xA52A2A,
-  'burlywood': 0xDEB887,
-  'cadetblue': 0x5F9EA0,
-  'chartreuse': 0x7FFF00,
-  'chocolate': 0xD2691E,
-  'coral': 0xFF7F50,
-  'cornflowerblue': 0x6495ED,
-  'cornsilk': 0xFFF8DC,
-  'crimson': 0xDC143C,
-  'cyan': 0x00FFFF,
-  'darkblue': 0x00008B,
-  'darkcyan': 0x008B8B,
-  'darkgoldenrod': 0xB8860B,
-  'darkgray': 0xA9A9A9,
-  'darkgreen': 0x006400,
-  'darkgrey': 0xA9A9A9,
-  'darkkhaki': 0xBDB76B,
-  'darkmagenta': 0x8B008B,
-  'darkolivegreen': 0x556B2F,
-  'darkorange': 0xFF8C00,
-  'darkorchid': 0x9932CC,
-  'darkred': 0x8B0000,
-  'darksalmon': 0xE9967A,
-  'darkseagreen': 0x8FBC8F,
-  'darkslateblue': 0x483D8B,
-  'darkslategray': 0x2F4F4F,
-  'darkslategrey': 0x2F4F4F,
-  'darkturquoise': 0x00CED1,
-  'darkviolet': 0x9400D3,
-  'deeppink': 0xFF1493,
-  'deepskyblue': 0x00BFFF,
-  'dimgray': 0x696969,
-  'dimgrey': 0x696969,
-  'dodgerblue': 0x1E90FF,
-  'firebrick': 0xB22222,
-  'floralwhite': 0xFFFAF0,
-  'forestgreen': 0x228B22,
-  'fuchsia': 0xFF00FF,
-  'gainsboro': 0xDCDCDC,
-  'ghostwhite': 0xF8F8FF,
-  'gold': 0xFFD700,
-  'goldenrod': 0xDAA520,
-  'gray': 0x808080,
-  'green': 0x008000,
-  'greenyellow': 0xADFF2F,
-  'grey': 0x808080,
-  'honeydew': 0xF0FFF0,
-  'hotpink': 0xFF69B4,
-  'indianred': 0xCD5C5C,
-  'indigo': 0x4B0082,
-  'ivory': 0xFFFFF0,
-  'khaki': 0xF0E68C,
-  'lavender': 0xE6E6FA,
-  'lavenderblush': 0xFFF0F5,
-  'lawngreen': 0x7CFC00,
-  'lemonchiffon': 0xFFFACD,
-  'lightblue': 0xADD8E6,
-  'lightcoral': 0xF08080,
-  'lightcyan': 0xE0FFFF,
-  'lightgoldenrodyellow': 0xFAFAD2,
-  'lightgray': 0xD3D3D3,
-  'lightgreen': 0x90EE90,
-  'lightgrey': 0xD3D3D3,
-  'lightpink': 0xFFB6C1,
-  'lightsalmon': 0xFFA07A,
-  'lightseagreen': 0x20B2AA,
-  'lightskyblue': 0x87CEFA,
-  'lightslategray': 0x778899,
-  'lightslategrey': 0x778899,
-  'lightsteelblue': 0xB0C4DE,
-  'lightyellow': 0xFFFFE0,
-  'lime': 0x00FF00,
-  'limegreen': 0x32CD32,
-  'linen': 0xFAF0E6,
-  'magenta': 0xFF00FF,
-  'maroon': 0x800000,
-  'mediumaquamarine': 0x66CDAA,
-  'mediumblue': 0x0000CD,
-  'mediumorchid': 0xBA55D3,
-  'mediumpurple': 0x9370DB,
-  'mediumseagreen': 0x3CB371,
-  'mediumslateblue': 0x7B68EE,
-  'mediumspringgreen': 0x00FA9A,
-  'mediumturquoise': 0x48D1CC,
-  'mediumvioletred': 0xC71585,
-  'midnightblue': 0x191970,
-  'mintcream': 0xF5FFFA,
-  'mistyrose': 0xFFE4E1,
-  'moccasin': 0xFFE4B5,
-  'navajowhite': 0xFFDEAD,
-  'navy': 0x000080,
-  'oldlace': 0xFDF5E6,
-  'olive': 0x808000,
-  'olivedrab': 0x6B8E23,
-  'orange': 0xFFA500,
-  'orangered': 0xFF4500,
-  'orchid': 0xDA70D6,
-  'palegoldenrod': 0xEEE8AA,
-  'palegreen': 0x98FB98,
-  'paleturquoise': 0xAFEEEE,
-  'palevioletred': 0xDB7093,
-  'papayawhip': 0xFFEFD5,
-  'peachpuff': 0xFFDAB9,
-  'peru': 0xCD853F,
-  'pink': 0xFFC0CB,
-  'plum': 0xDDA0DD,
-  'powderblue': 0xB0E0E6,
-  'purple': 0x800080,
-  'rebeccapurple': 0x663399,
-  'red': 0xFF0000,
-  'rosybrown': 0xBC8F8F,
-  'royalblue': 0x4169E1,
-  'saddlebrown': 0x8B4513,
-  'salmon': 0xFA8072,
-  'sandybrown': 0xF4A460,
-  'seagreen': 0x2E8B57,
-  'seashell': 0xFFF5EE,
-  'sienna': 0xA0522D,
-  'silver': 0xC0C0C0,
-  'skyblue': 0x87CEEB,
-  'slateblue': 0x6A5ACD,
-  'slategray': 0x708090,
-  'slategrey': 0x708090,
-  'snow': 0xFFFAFA,
-  'springgreen': 0x00FF7F,
-  'steelblue': 0x4682B4,
-  'tan': 0xD2B48C,
-  'teal': 0x008080,
-  'thistle': 0xD8BFD8,
-  'tomato': 0xFF6347,
-  'turquoise': 0x40E0D0,
-  'violet': 0xEE82EE,
-  'wheat': 0xF5DEB3,
-  'white': 0xFFFFFF,
-  'whitesmoke': 0xF5F5F5,
-  'yellow': 0xFFFF00,
-  'yellowgreen': 0x9ACD32
-};
-const _hslA = {
-  h: 0,
-  s: 0,
-  l: 0
-};
-const _hslB = {
-  h: 0,
-  s: 0,
-  l: 0
-};
-
-function hue2rgb(p, q, t) {
-  if (t < 0) t += 1;
-  if (t > 1) t -= 1;
-  if (t < 1 / 6) return p + (q - p) * 6 * t;
-  if (t < 1 / 2) return q;
-  if (t < 2 / 3) return p + (q - p) * 6 * (2 / 3 - t);
-  return p;
-}
-
-function SRGBToLinear(c) {
-  return c < 0.04045 ? c * 0.0773993808 : Math.pow(c * 0.9478672986 + 0.0521327014, 2.4);
-}
-
-function LinearToSRGB(c) {
-  return c < 0.0031308 ? c * 12.92 : 1.055 * Math.pow(c, 0.41666) - 0.055;
-}
-
-class Color {
-  constructor(r, g, b) {
-    if (g === undefined && b === undefined) {
-      // r is THREE.Color, hex or string
-      return this.set(r);
-    }
-
-    return this.setRGB(r, g, b);
-  }
-
-  set(value) {
-    if (value && value.isColor) {
-      this.copy(value);
-    } else if (typeof value === 'number') {
-      this.setHex(value);
-    } else if (typeof value === 'string') {
-      this.setStyle(value);
-    }
-
-    return this;
-  }
-
-  setScalar(scalar) {
-    this.r = scalar;
-    this.g = scalar;
-    this.b = scalar;
-    return this;
-  }
-
-  setHex(hex) {
-    hex = Math.floor(hex);
-    this.r = (hex >> 16 & 255) / 255;
-    this.g = (hex >> 8 & 255) / 255;
-    this.b = (hex & 255) / 255;
-    return this;
-  }
-
-  setRGB(r, g, b) {
-    this.r = r;
-    this.g = g;
-    this.b = b;
-    return this;
-  }
-
-  setHSL(h, s, l) {
-    // h,s,l ranges are in 0.0 - 1.0
-    h = MathUtils.euclideanModulo(h, 1);
-    s = MathUtils.clamp(s, 0, 1);
-    l = MathUtils.clamp(l, 0, 1);
-
-    if (s === 0) {
-      this.r = this.g = this.b = l;
-    } else {
-      const p = l <= 0.5 ? l * (1 + s) : l + s - l * s;
-      const q = 2 * l - p;
-      this.r = hue2rgb(q, p, h + 1 / 3);
-      this.g = hue2rgb(q, p, h);
-      this.b = hue2rgb(q, p, h - 1 / 3);
-    }
-
-    return this;
-  }
-
-  setStyle(style) {
-    function handleAlpha(string) {
-      if (string === undefined) return;
-
-      if (parseFloat(string) < 1) {
-        console.warn('THREE.Color: Alpha component of ' + style + ' will be ignored.');
-      }
-    }
-
-    let m;
-
-    if (m = /^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(style)) {
-      // rgb / hsl
-      let color;
-      const name = m[1];
-      const components = m[2];
-
-      switch (name) {
-        case 'rgb':
-        case 'rgba':
-          if (color = /^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
-            // rgb(255,0,0) rgba(255,0,0,0.5)
-            this.r = Math.min(255, parseInt(color[1], 10)) / 255;
-            this.g = Math.min(255, parseInt(color[2], 10)) / 255;
-            this.b = Math.min(255, parseInt(color[3], 10)) / 255;
-            handleAlpha(color[4]);
-            return this;
-          }
-
-          if (color = /^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
-            // rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
-            this.r = Math.min(100, parseInt(color[1], 10)) / 100;
-            this.g = Math.min(100, parseInt(color[2], 10)) / 100;
-            this.b = Math.min(100, parseInt(color[3], 10)) / 100;
-            handleAlpha(color[4]);
-            return this;
-          }
-
-          break;
-
-        case 'hsl':
-        case 'hsla':
-          if (color = /^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
-            // hsl(120,50%,50%) hsla(120,50%,50%,0.5)
-            const h = parseFloat(color[1]) / 360;
-            const s = parseInt(color[2], 10) / 100;
-            const l = parseInt(color[3], 10) / 100;
-            handleAlpha(color[4]);
-            return this.setHSL(h, s, l);
-          }
-
-          break;
-      }
-    } else if (m = /^\#([A-Fa-f\d]+)$/.exec(style)) {
-      // hex color
-      const hex = m[1];
-      const size = hex.length;
-
-      if (size === 3) {
-        // #ff0
-        this.r = parseInt(hex.charAt(0) + hex.charAt(0), 16) / 255;
-        this.g = parseInt(hex.charAt(1) + hex.charAt(1), 16) / 255;
-        this.b = parseInt(hex.charAt(2) + hex.charAt(2), 16) / 255;
-        return this;
-      } else if (size === 6) {
-        // #ff0000
-        this.r = parseInt(hex.charAt(0) + hex.charAt(1), 16) / 255;
-        this.g = parseInt(hex.charAt(2) + hex.charAt(3), 16) / 255;
-        this.b = parseInt(hex.charAt(4) + hex.charAt(5), 16) / 255;
-        return this;
-      }
-    }
-
-    if (style && style.length > 0) {
-      return this.setColorName(style);
-    }
-
-    return this;
-  }
-
-  setColorName(style) {
-    // color keywords
-    const hex = _colorKeywords[style];
-
-    if (hex !== undefined) {
-      // red
-      this.setHex(hex);
-    } else {
-      // unknown color
-      console.warn('THREE.Color: Unknown color ' + style);
-    }
-
-    return this;
-  }
-
-  clone() {
-    return new this.constructor(this.r, this.g, this.b);
-  }
-
-  copy(color) {
-    this.r = color.r;
-    this.g = color.g;
-    this.b = color.b;
-    return this;
-  }
-
-  copyGammaToLinear(color, gammaFactor = 2.0) {
-    this.r = Math.pow(color.r, gammaFactor);
-    this.g = Math.pow(color.g, gammaFactor);
-    this.b = Math.pow(color.b, gammaFactor);
-    return this;
-  }
-
-  copyLinearToGamma(color, gammaFactor = 2.0) {
-    const safeInverse = gammaFactor > 0 ? 1.0 / gammaFactor : 1.0;
-    this.r = Math.pow(color.r, safeInverse);
-    this.g = Math.pow(color.g, safeInverse);
-    this.b = Math.pow(color.b, safeInverse);
-    return this;
-  }
-
-  convertGammaToLinear(gammaFactor) {
-    this.copyGammaToLinear(this, gammaFactor);
-    return this;
-  }
-
-  convertLinearToGamma(gammaFactor) {
-    this.copyLinearToGamma(this, gammaFactor);
-    return this;
-  }
-
-  copySRGBToLinear(color) {
-    this.r = SRGBToLinear(color.r);
-    this.g = SRGBToLinear(color.g);
-    this.b = SRGBToLinear(color.b);
-    return this;
-  }
-
-  copyLinearToSRGB(color) {
-    this.r = LinearToSRGB(color.r);
-    this.g = LinearToSRGB(color.g);
-    this.b = LinearToSRGB(color.b);
-    return this;
-  }
-
-  convertSRGBToLinear() {
-    this.copySRGBToLinear(this);
-    return this;
-  }
-
-  convertLinearToSRGB() {
-    this.copyLinearToSRGB(this);
-    return this;
-  }
-
-  getHex() {
-    return this.r * 255 << 16 ^ this.g * 255 << 8 ^ this.b * 255 << 0;
-  }
-
-  getHexString() {
-    return ('000000' + this.getHex().toString(16)).slice(-6);
-  }
-
-  getHSL(target) {
-    // h,s,l ranges are in 0.0 - 1.0
-    if (target === undefined) {
-      console.warn('THREE.Color: .getHSL() target is now required');
-      target = {
-        h: 0,
-        s: 0,
-        l: 0
-      };
-    }
-
-    const r = this.r,
-          g = this.g,
-          b = this.b;
-    const max = Math.max(r, g, b);
-    const min = Math.min(r, g, b);
-    let hue, saturation;
-    const lightness = (min + max) / 2.0;
-
-    if (min === max) {
-      hue = 0;
-      saturation = 0;
-    } else {
-      const delta = max - min;
-      saturation = lightness <= 0.5 ? delta / (max + min) : delta / (2 - max - min);
-
-      switch (max) {
-        case r:
-          hue = (g - b) / delta + (g < b ? 6 : 0);
-          break;
-
-        case g:
-          hue = (b - r) / delta + 2;
-          break;
-
-        case b:
-          hue = (r - g) / delta + 4;
-          break;
-      }
-
-      hue /= 6;
-    }
-
-    target.h = hue;
-    target.s = saturation;
-    target.l = lightness;
-    return target;
-  }
-
-  getStyle() {
-    return 'rgb(' + (this.r * 255 | 0) + ',' + (this.g * 255 | 0) + ',' + (this.b * 255 | 0) + ')';
-  }
-
-  offsetHSL(h, s, l) {
-    this.getHSL(_hslA);
-    _hslA.h += h;
-    _hslA.s += s;
-    _hslA.l += l;
-    this.setHSL(_hslA.h, _hslA.s, _hslA.l);
-    return this;
-  }
-
-  add(color) {
-    this.r += color.r;
-    this.g += color.g;
-    this.b += color.b;
-    return this;
-  }
-
-  addColors(color1, color2) {
-    this.r = color1.r + color2.r;
-    this.g = color1.g + color2.g;
-    this.b = color1.b + color2.b;
-    return this;
-  }
-
-  addScalar(s) {
-    this.r += s;
-    this.g += s;
-    this.b += s;
-    return this;
-  }
-
-  sub(color) {
-    this.r = Math.max(0, this.r - color.r);
-    this.g = Math.max(0, this.g - color.g);
-    this.b = Math.max(0, this.b - color.b);
-    return this;
-  }
-
-  multiply(color) {
-    this.r *= color.r;
-    this.g *= color.g;
-    this.b *= color.b;
-    return this;
-  }
-
-  multiplyScalar(s) {
-    this.r *= s;
-    this.g *= s;
-    this.b *= s;
-    return this;
-  }
-
-  lerp(color, alpha) {
-    this.r += (color.r - this.r) * alpha;
-    this.g += (color.g - this.g) * alpha;
-    this.b += (color.b - this.b) * alpha;
-    return this;
-  }
-
-  lerpColors(color1, color2, alpha) {
-    this.r = color1.r + (color2.r - color1.r) * alpha;
-    this.g = color1.g + (color2.g - color1.g) * alpha;
-    this.b = color1.b + (color2.b - color1.b) * alpha;
-    return this;
-  }
-
-  lerpHSL(color, alpha) {
-    this.getHSL(_hslA);
-    color.getHSL(_hslB);
-    const h = MathUtils.lerp(_hslA.h, _hslB.h, alpha);
-    const s = MathUtils.lerp(_hslA.s, _hslB.s, alpha);
-    const l = MathUtils.lerp(_hslA.l, _hslB.l, alpha);
-    this.setHSL(h, s, l);
-    return this;
-  }
-
-  equals(c) {
-    return c.r === this.r && c.g === this.g && c.b === this.b;
-  }
-
-  fromArray(array, offset = 0) {
-    this.r = array[offset];
-    this.g = array[offset + 1];
-    this.b = array[offset + 2];
-    return this;
-  }
-
-  toArray(array = [], offset = 0) {
-    array[offset] = this.r;
-    array[offset + 1] = this.g;
-    array[offset + 2] = this.b;
-    return array;
-  }
-
-  fromBufferAttribute(attribute, index) {
-    this.r = attribute.getX(index);
-    this.g = attribute.getY(index);
-    this.b = attribute.getZ(index);
-
-    if (attribute.normalized === true) {
-      // assuming Uint8Array
-      this.r /= 255;
-      this.g /= 255;
-      this.b /= 255;
-    }
-
-    return this;
-  }
-
-  toJSON() {
-    return this.getHex();
-  }
-
-}
-
-exports.Color = Color;
-Color.NAMES = _colorKeywords;
-Color.prototype.isColor = true;
-Color.prototype.r = 1;
-Color.prototype.g = 1;
-Color.prototype.b = 1;
-/**
- * parameters = {
- *  color: <hex>,
- *  opacity: <float>,
- *  map: new THREE.Texture( <Image> ),
- *
- *  lightMap: new THREE.Texture( <Image> ),
- *  lightMapIntensity: <float>
- *
- *  aoMap: new THREE.Texture( <Image> ),
- *  aoMapIntensity: <float>
- *
- *  specularMap: new THREE.Texture( <Image> ),
- *
- *  alphaMap: new THREE.Texture( <Image> ),
- *
- *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
- *  combine: THREE.Multiply,
- *  reflectivity: <float>,
- *  refractionRatio: <float>,
- *
- *  depthTest: <bool>,
- *  depthWrite: <bool>,
- *
- *  wireframe: <boolean>,
- *  wireframeLinewidth: <float>,
- *
- *  skinning: <bool>,
- *  morphTargets: <bool>
- * }
- */
-
-class MeshBasicMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'MeshBasicMaterial';
-    this.color = new Color(0xffffff); // emissive
-
-    this.map = null;
-    this.lightMap = null;
-    this.lightMapIntensity = 1.0;
-    this.aoMap = null;
-    this.aoMapIntensity = 1.0;
-    this.specularMap = null;
-    this.alphaMap = null;
-    this.envMap = null;
-    this.combine = MultiplyOperation;
-    this.reflectivity = 1;
-    this.refractionRatio = 0.98;
-    this.wireframe = false;
-    this.wireframeLinewidth = 1;
-    this.wireframeLinecap = 'round';
-    this.wireframeLinejoin = 'round';
-    this.skinning = false;
-    this.morphTargets = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.color.copy(source.color);
-    this.map = source.map;
-    this.lightMap = source.lightMap;
-    this.lightMapIntensity = source.lightMapIntensity;
-    this.aoMap = source.aoMap;
-    this.aoMapIntensity = source.aoMapIntensity;
-    this.specularMap = source.specularMap;
-    this.alphaMap = source.alphaMap;
-    this.envMap = source.envMap;
-    this.combine = source.combine;
-    this.reflectivity = source.reflectivity;
-    this.refractionRatio = source.refractionRatio;
-    this.wireframe = source.wireframe;
-    this.wireframeLinewidth = source.wireframeLinewidth;
-    this.wireframeLinecap = source.wireframeLinecap;
-    this.wireframeLinejoin = source.wireframeLinejoin;
-    this.skinning = source.skinning;
-    this.morphTargets = source.morphTargets;
-    return this;
-  }
-
-}
-
-exports.MeshBasicMaterial = MeshBasicMaterial;
-MeshBasicMaterial.prototype.isMeshBasicMaterial = true;
-
-const _vector$3 = new Vector3();
-
-const _vector2$1 = new Vector2();
-
-function BufferAttribute(array, itemSize, normalized) {
-  if (Array.isArray(array)) {
-    throw new TypeError('THREE.BufferAttribute: array should be a Typed Array.');
-  }
-
-  this.name = '';
-  this.array = array;
-  this.itemSize = itemSize;
-  this.count = array !== undefined ? array.length / itemSize : 0;
-  this.normalized = normalized === true;
-  this.usage = StaticDrawUsage;
-  this.updateRange = {
-    offset: 0,
-    count: -1
-  };
-  this.version = 0;
-}
-
-Object.defineProperty(BufferAttribute.prototype, 'needsUpdate', {
-  set: function (value) {
-    if (value === true) this.version++;
-  }
-});
-Object.assign(BufferAttribute.prototype, {
-  isBufferAttribute: true,
-  onUploadCallback: function () {},
-  setUsage: function (value) {
-    this.usage = value;
-    return this;
-  },
-  copy: function (source) {
-    this.name = source.name;
-    this.array = new source.array.constructor(source.array);
-    this.itemSize = source.itemSize;
-    this.count = source.count;
-    this.normalized = source.normalized;
-    this.usage = source.usage;
-    return this;
-  },
-  copyAt: function (index1, attribute, index2) {
-    index1 *= this.itemSize;
-    index2 *= attribute.itemSize;
-
-    for (let i = 0, l = this.itemSize; i < l; i++) {
-      this.array[index1 + i] = attribute.array[index2 + i];
-    }
-
-    return this;
-  },
-  copyArray: function (array) {
-    this.array.set(array);
-    return this;
-  },
-  copyColorsArray: function (colors) {
-    const array = this.array;
-    let offset = 0;
-
-    for (let i = 0, l = colors.length; i < l; i++) {
-      let color = colors[i];
-
-      if (color === undefined) {
-        console.warn('THREE.BufferAttribute.copyColorsArray(): color is undefined', i);
-        color = new Color();
-      }
-
-      array[offset++] = color.r;
-      array[offset++] = color.g;
-      array[offset++] = color.b;
-    }
-
-    return this;
-  },
-  copyVector2sArray: function (vectors) {
-    const array = this.array;
-    let offset = 0;
-
-    for (let i = 0, l = vectors.length; i < l; i++) {
-      let vector = vectors[i];
-
-      if (vector === undefined) {
-        console.warn('THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i);
-        vector = new Vector2();
-      }
-
-      array[offset++] = vector.x;
-      array[offset++] = vector.y;
-    }
-
-    return this;
-  },
-  copyVector3sArray: function (vectors) {
-    const array = this.array;
-    let offset = 0;
-
-    for (let i = 0, l = vectors.length; i < l; i++) {
-      let vector = vectors[i];
-
-      if (vector === undefined) {
-        console.warn('THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i);
-        vector = new Vector3();
-      }
-
-      array[offset++] = vector.x;
-      array[offset++] = vector.y;
-      array[offset++] = vector.z;
-    }
-
-    return this;
-  },
-  copyVector4sArray: function (vectors) {
-    const array = this.array;
-    let offset = 0;
-
-    for (let i = 0, l = vectors.length; i < l; i++) {
-      let vector = vectors[i];
-
-      if (vector === undefined) {
-        console.warn('THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i);
-        vector = new Vector4();
-      }
-
-      array[offset++] = vector.x;
-      array[offset++] = vector.y;
-      array[offset++] = vector.z;
-      array[offset++] = vector.w;
-    }
-
-    return this;
-  },
-  applyMatrix3: function (m) {
-    if (this.itemSize === 2) {
-      for (let i = 0, l = this.count; i < l; i++) {
-        _vector2$1.fromBufferAttribute(this, i);
-
-        _vector2$1.applyMatrix3(m);
-
-        this.setXY(i, _vector2$1.x, _vector2$1.y);
-      }
-    } else if (this.itemSize === 3) {
-      for (let i = 0, l = this.count; i < l; i++) {
-        _vector$3.fromBufferAttribute(this, i);
-
-        _vector$3.applyMatrix3(m);
-
-        this.setXYZ(i, _vector$3.x, _vector$3.y, _vector$3.z);
-      }
-    }
-
-    return this;
-  },
-  applyMatrix4: function (m) {
-    for (let i = 0, l = this.count; i < l; i++) {
-      _vector$3.x = this.getX(i);
-      _vector$3.y = this.getY(i);
-      _vector$3.z = this.getZ(i);
-
-      _vector$3.applyMatrix4(m);
-
-      this.setXYZ(i, _vector$3.x, _vector$3.y, _vector$3.z);
-    }
-
-    return this;
-  },
-  applyNormalMatrix: function (m) {
-    for (let i = 0, l = this.count; i < l; i++) {
-      _vector$3.x = this.getX(i);
-      _vector$3.y = this.getY(i);
-      _vector$3.z = this.getZ(i);
-
-      _vector$3.applyNormalMatrix(m);
-
-      this.setXYZ(i, _vector$3.x, _vector$3.y, _vector$3.z);
-    }
-
-    return this;
-  },
-  transformDirection: function (m) {
-    for (let i = 0, l = this.count; i < l; i++) {
-      _vector$3.x = this.getX(i);
-      _vector$3.y = this.getY(i);
-      _vector$3.z = this.getZ(i);
-
-      _vector$3.transformDirection(m);
-
-      this.setXYZ(i, _vector$3.x, _vector$3.y, _vector$3.z);
-    }
-
-    return this;
-  },
-  set: function (value, offset = 0) {
-    this.array.set(value, offset);
-    return this;
-  },
-  getX: function (index) {
-    return this.array[index * this.itemSize];
-  },
-  setX: function (index, x) {
-    this.array[index * this.itemSize] = x;
-    return this;
-  },
-  getY: function (index) {
-    return this.array[index * this.itemSize + 1];
-  },
-  setY: function (index, y) {
-    this.array[index * this.itemSize + 1] = y;
-    return this;
-  },
-  getZ: function (index) {
-    return this.array[index * this.itemSize + 2];
-  },
-  setZ: function (index, z) {
-    this.array[index * this.itemSize + 2] = z;
-    return this;
-  },
-  getW: function (index) {
-    return this.array[index * this.itemSize + 3];
-  },
-  setW: function (index, w) {
-    this.array[index * this.itemSize + 3] = w;
-    return this;
-  },
-  setXY: function (index, x, y) {
-    index *= this.itemSize;
-    this.array[index + 0] = x;
-    this.array[index + 1] = y;
-    return this;
-  },
-  setXYZ: function (index, x, y, z) {
-    index *= this.itemSize;
-    this.array[index + 0] = x;
-    this.array[index + 1] = y;
-    this.array[index + 2] = z;
-    return this;
-  },
-  setXYZW: function (index, x, y, z, w) {
-    index *= this.itemSize;
-    this.array[index + 0] = x;
-    this.array[index + 1] = y;
-    this.array[index + 2] = z;
-    this.array[index + 3] = w;
-    return this;
-  },
-  onUpload: function (callback) {
-    this.onUploadCallback = callback;
-    return this;
-  },
-  clone: function () {
-    return new this.constructor(this.array, this.itemSize).copy(this);
-  },
-  toJSON: function () {
-    return {
-      itemSize: this.itemSize,
-      type: this.array.constructor.name,
-      array: Array.prototype.slice.call(this.array),
-      normalized: this.normalized
-    };
-  }
-}); //
-
-function Int8BufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Int8Array(array), itemSize, normalized);
-}
-
-Int8BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Int8BufferAttribute.prototype.constructor = Int8BufferAttribute;
-
-function Uint8BufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Uint8Array(array), itemSize, normalized);
-}
-
-Uint8BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;
-
-function Uint8ClampedBufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Uint8ClampedArray(array), itemSize, normalized);
-}
-
-Uint8ClampedBufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;
-
-function Int16BufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Int16Array(array), itemSize, normalized);
-}
-
-Int16BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Int16BufferAttribute.prototype.constructor = Int16BufferAttribute;
-
-function Uint16BufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Uint16Array(array), itemSize, normalized);
-}
-
-Uint16BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;
-
-function Int32BufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Int32Array(array), itemSize, normalized);
-}
-
-Int32BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Int32BufferAttribute.prototype.constructor = Int32BufferAttribute;
-
-function Uint32BufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Uint32Array(array), itemSize, normalized);
-}
-
-Uint32BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;
-
-function Float16BufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Uint16Array(array), itemSize, normalized);
-}
-
-Float16BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Float16BufferAttribute.prototype.constructor = Float16BufferAttribute;
-Float16BufferAttribute.prototype.isFloat16BufferAttribute = true;
-
-function Float32BufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Float32Array(array), itemSize, normalized);
-}
-
-Float32BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Float32BufferAttribute.prototype.constructor = Float32BufferAttribute;
-
-function Float64BufferAttribute(array, itemSize, normalized) {
-  BufferAttribute.call(this, new Float64Array(array), itemSize, normalized);
-}
-
-Float64BufferAttribute.prototype = Object.create(BufferAttribute.prototype);
-Float64BufferAttribute.prototype.constructor = Float64BufferAttribute;
-
-function arrayMax(array) {
-  if (array.length === 0) return -Infinity;
-  let max = array[0];
-
-  for (let i = 1, l = array.length; i < l; ++i) {
-    if (array[i] > max) max = array[i];
-  }
-
-  return max;
-}
-
-const TYPED_ARRAYS = {
-  Int8Array: Int8Array,
-  Uint8Array: Uint8Array,
-  Uint8ClampedArray: Uint8ClampedArray,
-  Int16Array: Int16Array,
-  Uint16Array: Uint16Array,
-  Int32Array: Int32Array,
-  Uint32Array: Uint32Array,
-  Float32Array: Float32Array,
-  Float64Array: Float64Array
-};
-
-function getTypedArray(type, buffer) {
-  return new TYPED_ARRAYS[type](buffer);
-}
-
-let _id = 0;
-
-const _m1$2 = new Matrix4();
-
-const _obj = new Object3D();
-
-const _offset = new Vector3();
-
-const _box$2 = new Box3();
-
-const _boxMorphTargets = new Box3();
-
-const _vector$4 = new Vector3();
-
-function BufferGeometry() {
-  Object.defineProperty(this, 'id', {
-    value: _id++
-  });
-  this.uuid = MathUtils.generateUUID();
-  this.name = '';
-  this.type = 'BufferGeometry';
-  this.index = null;
-  this.attributes = {};
-  this.morphAttributes = {};
-  this.morphTargetsRelative = false;
-  this.groups = [];
-  this.boundingBox = null;
-  this.boundingSphere = null;
-  this.drawRange = {
-    start: 0,
-    count: Infinity
-  };
-  this.userData = {};
-}
-
-BufferGeometry.prototype = Object.assign(Object.create(EventDispatcher.prototype), {
-  constructor: BufferGeometry,
-  isBufferGeometry: true,
-  getIndex: function () {
-    return this.index;
-  },
-  setIndex: function (index) {
-    if (Array.isArray(index)) {
-      this.index = new (arrayMax(index) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute)(index, 1);
-    } else {
-      this.index = index;
-    }
-
-    return this;
-  },
-  getAttribute: function (name) {
-    return this.attributes[name];
-  },
-  setAttribute: function (name, attribute) {
-    this.attributes[name] = attribute;
-    return this;
-  },
-  deleteAttribute: function (name) {
-    delete this.attributes[name];
-    return this;
-  },
-  hasAttribute: function (name) {
-    return this.attributes[name] !== undefined;
-  },
-  addGroup: function (start, count, materialIndex = 0) {
-    this.groups.push({
-      start: start,
-      count: count,
-      materialIndex: materialIndex
-    });
-  },
-  clearGroups: function () {
-    this.groups = [];
-  },
-  setDrawRange: function (start, count) {
-    this.drawRange.start = start;
-    this.drawRange.count = count;
-  },
-  applyMatrix4: function (matrix) {
-    const position = this.attributes.position;
-
-    if (position !== undefined) {
-      position.applyMatrix4(matrix);
-      position.needsUpdate = true;
-    }
-
-    const normal = this.attributes.normal;
-
-    if (normal !== undefined) {
-      const normalMatrix = new Matrix3().getNormalMatrix(matrix);
-      normal.applyNormalMatrix(normalMatrix);
-      normal.needsUpdate = true;
-    }
-
-    const tangent = this.attributes.tangent;
-
-    if (tangent !== undefined) {
-      tangent.transformDirection(matrix);
-      tangent.needsUpdate = true;
-    }
-
-    if (this.boundingBox !== null) {
-      this.computeBoundingBox();
-    }
-
-    if (this.boundingSphere !== null) {
-      this.computeBoundingSphere();
-    }
-
-    return this;
-  },
-  rotateX: function (angle) {
-    // rotate geometry around world x-axis
-    _m1$2.makeRotationX(angle);
-
-    this.applyMatrix4(_m1$2);
-    return this;
-  },
-  rotateY: function (angle) {
-    // rotate geometry around world y-axis
-    _m1$2.makeRotationY(angle);
-
-    this.applyMatrix4(_m1$2);
-    return this;
-  },
-  rotateZ: function (angle) {
-    // rotate geometry around world z-axis
-    _m1$2.makeRotationZ(angle);
-
-    this.applyMatrix4(_m1$2);
-    return this;
-  },
-  translate: function (x, y, z) {
-    // translate geometry
-    _m1$2.makeTranslation(x, y, z);
-
-    this.applyMatrix4(_m1$2);
-    return this;
-  },
-  scale: function (x, y, z) {
-    // scale geometry
-    _m1$2.makeScale(x, y, z);
-
-    this.applyMatrix4(_m1$2);
-    return this;
-  },
-  lookAt: function (vector) {
-    _obj.lookAt(vector);
-
-    _obj.updateMatrix();
-
-    this.applyMatrix4(_obj.matrix);
-    return this;
-  },
-  center: function () {
-    this.computeBoundingBox();
-    this.boundingBox.getCenter(_offset).negate();
-    this.translate(_offset.x, _offset.y, _offset.z);
-    return this;
-  },
-  setFromPoints: function (points) {
-    const position = [];
-
-    for (let i = 0, l = points.length; i < l; i++) {
-      const point = points[i];
-      position.push(point.x, point.y, point.z || 0);
-    }
-
-    this.setAttribute('position', new Float32BufferAttribute(position, 3));
-    return this;
-  },
-  computeBoundingBox: function () {
-    if (this.boundingBox === null) {
-      this.boundingBox = new Box3();
-    }
-
-    const position = this.attributes.position;
-    const morphAttributesPosition = this.morphAttributes.position;
-
-    if (position && position.isGLBufferAttribute) {
-      console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".', this);
-      this.boundingBox.set(new Vector3(-Infinity, -Infinity, -Infinity), new Vector3(+Infinity, +Infinity, +Infinity));
-      return;
-    }
-
-    if (position !== undefined) {
-      this.boundingBox.setFromBufferAttribute(position); // process morph attributes if present
-
-      if (morphAttributesPosition) {
-        for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
-          const morphAttribute = morphAttributesPosition[i];
-
-          _box$2.setFromBufferAttribute(morphAttribute);
-
-          if (this.morphTargetsRelative) {
-            _vector$4.addVectors(this.boundingBox.min, _box$2.min);
-
-            this.boundingBox.expandByPoint(_vector$4);
-
-            _vector$4.addVectors(this.boundingBox.max, _box$2.max);
-
-            this.boundingBox.expandByPoint(_vector$4);
-          } else {
-            this.boundingBox.expandByPoint(_box$2.min);
-            this.boundingBox.expandByPoint(_box$2.max);
-          }
-        }
-      }
-    } else {
-      this.boundingBox.makeEmpty();
-    }
-
-    if (isNaN(this.boundingBox.min.x) || isNaN(this.boundingBox.min.y) || isNaN(this.boundingBox.min.z)) {
-      console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this);
-    }
-  },
-  computeBoundingSphere: function () {
-    if (this.boundingSphere === null) {
-      this.boundingSphere = new Sphere();
-    }
-
-    const position = this.attributes.position;
-    const morphAttributesPosition = this.morphAttributes.position;
-
-    if (position && position.isGLBufferAttribute) {
-      console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".', this);
-      this.boundingSphere.set(new Vector3(), Infinity);
-      return;
-    }
-
-    if (position) {
-      // first, find the center of the bounding sphere
-      const center = this.boundingSphere.center;
-
-      _box$2.setFromBufferAttribute(position); // process morph attributes if present
-
-
-      if (morphAttributesPosition) {
-        for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
-          const morphAttribute = morphAttributesPosition[i];
-
-          _boxMorphTargets.setFromBufferAttribute(morphAttribute);
-
-          if (this.morphTargetsRelative) {
-            _vector$4.addVectors(_box$2.min, _boxMorphTargets.min);
-
-            _box$2.expandByPoint(_vector$4);
-
-            _vector$4.addVectors(_box$2.max, _boxMorphTargets.max);
-
-            _box$2.expandByPoint(_vector$4);
-          } else {
-            _box$2.expandByPoint(_boxMorphTargets.min);
-
-            _box$2.expandByPoint(_boxMorphTargets.max);
-          }
-        }
-      }
-
-      _box$2.getCenter(center); // second, try to find a boundingSphere with a radius smaller than the
-      // boundingSphere of the boundingBox: sqrt(3) smaller in the best case
-
-
-      let maxRadiusSq = 0;
-
-      for (let i = 0, il = position.count; i < il; i++) {
-        _vector$4.fromBufferAttribute(position, i);
-
-        maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(_vector$4));
-      } // process morph attributes if present
-
-
-      if (morphAttributesPosition) {
-        for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
-          const morphAttribute = morphAttributesPosition[i];
-          const morphTargetsRelative = this.morphTargetsRelative;
-
-          for (let j = 0, jl = morphAttribute.count; j < jl; j++) {
-            _vector$4.fromBufferAttribute(morphAttribute, j);
-
-            if (morphTargetsRelative) {
-              _offset.fromBufferAttribute(position, j);
-
-              _vector$4.add(_offset);
-            }
-
-            maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(_vector$4));
-          }
-        }
-      }
-
-      this.boundingSphere.radius = Math.sqrt(maxRadiusSq);
-
-      if (isNaN(this.boundingSphere.radius)) {
-        console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this);
-      }
-    }
-  },
-  computeFaceNormals: function () {// backwards compatibility
-  },
-  computeTangents: function () {
-    const index = this.index;
-    const attributes = this.attributes; // based on http://www.terathon.com/code/tangent.html
-    // (per vertex tangents)
-
-    if (index === null || attributes.position === undefined || attributes.normal === undefined || attributes.uv === undefined) {
-      console.error('THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)');
-      return;
-    }
-
-    const indices = index.array;
-    const positions = attributes.position.array;
-    const normals = attributes.normal.array;
-    const uvs = attributes.uv.array;
-    const nVertices = positions.length / 3;
-
-    if (attributes.tangent === undefined) {
-      this.setAttribute('tangent', new BufferAttribute(new Float32Array(4 * nVertices), 4));
-    }
-
-    const tangents = attributes.tangent.array;
-    const tan1 = [],
-          tan2 = [];
-
-    for (let i = 0; i < nVertices; i++) {
-      tan1[i] = new Vector3();
-      tan2[i] = new Vector3();
-    }
-
-    const vA = new Vector3(),
-          vB = new Vector3(),
-          vC = new Vector3(),
-          uvA = new Vector2(),
-          uvB = new Vector2(),
-          uvC = new Vector2(),
-          sdir = new Vector3(),
-          tdir = new Vector3();
-
-    function handleTriangle(a, b, c) {
-      vA.fromArray(positions, a * 3);
-      vB.fromArray(positions, b * 3);
-      vC.fromArray(positions, c * 3);
-      uvA.fromArray(uvs, a * 2);
-      uvB.fromArray(uvs, b * 2);
-      uvC.fromArray(uvs, c * 2);
-      vB.sub(vA);
-      vC.sub(vA);
-      uvB.sub(uvA);
-      uvC.sub(uvA);
-      const r = 1.0 / (uvB.x * uvC.y - uvC.x * uvB.y); // silently ignore degenerate uv triangles having coincident or colinear vertices
-
-      if (!isFinite(r)) return;
-      sdir.copy(vB).multiplyScalar(uvC.y).addScaledVector(vC, -uvB.y).multiplyScalar(r);
-      tdir.copy(vC).multiplyScalar(uvB.x).addScaledVector(vB, -uvC.x).multiplyScalar(r);
-      tan1[a].add(sdir);
-      tan1[b].add(sdir);
-      tan1[c].add(sdir);
-      tan2[a].add(tdir);
-      tan2[b].add(tdir);
-      tan2[c].add(tdir);
-    }
-
-    let groups = this.groups;
-
-    if (groups.length === 0) {
-      groups = [{
-        start: 0,
-        count: indices.length
-      }];
-    }
-
-    for (let i = 0, il = groups.length; i < il; ++i) {
-      const group = groups[i];
-      const start = group.start;
-      const count = group.count;
-
-      for (let j = start, jl = start + count; j < jl; j += 3) {
-        handleTriangle(indices[j + 0], indices[j + 1], indices[j + 2]);
-      }
-    }
-
-    const tmp = new Vector3(),
-          tmp2 = new Vector3();
-    const n = new Vector3(),
-          n2 = new Vector3();
-
-    function handleVertex(v) {
-      n.fromArray(normals, v * 3);
-      n2.copy(n);
-      const t = tan1[v]; // Gram-Schmidt orthogonalize
-
-      tmp.copy(t);
-      tmp.sub(n.multiplyScalar(n.dot(t))).normalize(); // Calculate handedness
-
-      tmp2.crossVectors(n2, t);
-      const test = tmp2.dot(tan2[v]);
-      const w = test < 0.0 ? -1.0 : 1.0;
-      tangents[v * 4] = tmp.x;
-      tangents[v * 4 + 1] = tmp.y;
-      tangents[v * 4 + 2] = tmp.z;
-      tangents[v * 4 + 3] = w;
-    }
-
-    for (let i = 0, il = groups.length; i < il; ++i) {
-      const group = groups[i];
-      const start = group.start;
-      const count = group.count;
-
-      for (let j = start, jl = start + count; j < jl; j += 3) {
-        handleVertex(indices[j + 0]);
-        handleVertex(indices[j + 1]);
-        handleVertex(indices[j + 2]);
-      }
-    }
-  },
-  computeVertexNormals: function () {
-    const index = this.index;
-    const positionAttribute = this.getAttribute('position');
-
-    if (positionAttribute !== undefined) {
-      let normalAttribute = this.getAttribute('normal');
-
-      if (normalAttribute === undefined) {
-        normalAttribute = new BufferAttribute(new Float32Array(positionAttribute.count * 3), 3);
-        this.setAttribute('normal', normalAttribute);
-      } else {
-        // reset existing normals to zero
-        for (let i = 0, il = normalAttribute.count; i < il; i++) {
-          normalAttribute.setXYZ(i, 0, 0, 0);
-        }
-      }
-
-      const pA = new Vector3(),
-            pB = new Vector3(),
-            pC = new Vector3();
-      const nA = new Vector3(),
-            nB = new Vector3(),
-            nC = new Vector3();
-      const cb = new Vector3(),
-            ab = new Vector3(); // indexed elements
-
-      if (index) {
-        for (let i = 0, il = index.count; i < il; i += 3) {
-          const vA = index.getX(i + 0);
-          const vB = index.getX(i + 1);
-          const vC = index.getX(i + 2);
-          pA.fromBufferAttribute(positionAttribute, vA);
-          pB.fromBufferAttribute(positionAttribute, vB);
-          pC.fromBufferAttribute(positionAttribute, vC);
-          cb.subVectors(pC, pB);
-          ab.subVectors(pA, pB);
-          cb.cross(ab);
-          nA.fromBufferAttribute(normalAttribute, vA);
-          nB.fromBufferAttribute(normalAttribute, vB);
-          nC.fromBufferAttribute(normalAttribute, vC);
-          nA.add(cb);
-          nB.add(cb);
-          nC.add(cb);
-          normalAttribute.setXYZ(vA, nA.x, nA.y, nA.z);
-          normalAttribute.setXYZ(vB, nB.x, nB.y, nB.z);
-          normalAttribute.setXYZ(vC, nC.x, nC.y, nC.z);
-        }
-      } else {
-        // non-indexed elements (unconnected triangle soup)
-        for (let i = 0, il = positionAttribute.count; i < il; i += 3) {
-          pA.fromBufferAttribute(positionAttribute, i + 0);
-          pB.fromBufferAttribute(positionAttribute, i + 1);
-          pC.fromBufferAttribute(positionAttribute, i + 2);
-          cb.subVectors(pC, pB);
-          ab.subVectors(pA, pB);
-          cb.cross(ab);
-          normalAttribute.setXYZ(i + 0, cb.x, cb.y, cb.z);
-          normalAttribute.setXYZ(i + 1, cb.x, cb.y, cb.z);
-          normalAttribute.setXYZ(i + 2, cb.x, cb.y, cb.z);
-        }
-      }
-
-      this.normalizeNormals();
-      normalAttribute.needsUpdate = true;
-    }
-  },
-  merge: function (geometry, offset) {
-    if (!(geometry && geometry.isBufferGeometry)) {
-      console.error('THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry);
-      return;
-    }
-
-    if (offset === undefined) {
-      offset = 0;
-      console.warn('THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. ' + 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.');
-    }
-
-    const attributes = this.attributes;
-
-    for (const key in attributes) {
-      if (geometry.attributes[key] === undefined) continue;
-      const attribute1 = attributes[key];
-      const attributeArray1 = attribute1.array;
-      const attribute2 = geometry.attributes[key];
-      const attributeArray2 = attribute2.array;
-      const attributeOffset = attribute2.itemSize * offset;
-      const length = Math.min(attributeArray2.length, attributeArray1.length - attributeOffset);
-
-      for (let i = 0, j = attributeOffset; i < length; i++, j++) {
-        attributeArray1[j] = attributeArray2[i];
-      }
-    }
-
-    return this;
-  },
-  normalizeNormals: function () {
-    const normals = this.attributes.normal;
-
-    for (let i = 0, il = normals.count; i < il; i++) {
-      _vector$4.fromBufferAttribute(normals, i);
-
-      _vector$4.normalize();
-
-      normals.setXYZ(i, _vector$4.x, _vector$4.y, _vector$4.z);
-    }
-  },
-  toNonIndexed: function () {
-    function convertBufferAttribute(attribute, indices) {
-      const array = attribute.array;
-      const itemSize = attribute.itemSize;
-      const normalized = attribute.normalized;
-      const array2 = new array.constructor(indices.length * itemSize);
-      let index = 0,
-          index2 = 0;
-
-      for (let i = 0, l = indices.length; i < l; i++) {
-        index = indices[i] * itemSize;
-
-        for (let j = 0; j < itemSize; j++) {
-          array2[index2++] = array[index++];
-        }
-      }
-
-      return new BufferAttribute(array2, itemSize, normalized);
-    } //
-
-
-    if (this.index === null) {
-      console.warn('THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed.');
-      return this;
-    }
-
-    const geometry2 = new BufferGeometry();
-    const indices = this.index.array;
-    const attributes = this.attributes; // attributes
-
-    for (const name in attributes) {
-      const attribute = attributes[name];
-      const newAttribute = convertBufferAttribute(attribute, indices);
-      geometry2.setAttribute(name, newAttribute);
-    } // morph attributes
-
-
-    const morphAttributes = this.morphAttributes;
-
-    for (const name in morphAttributes) {
-      const morphArray = [];
-      const morphAttribute = morphAttributes[name]; // morphAttribute: array of Float32BufferAttributes
-
-      for (let i = 0, il = morphAttribute.length; i < il; i++) {
-        const attribute = morphAttribute[i];
-        const newAttribute = convertBufferAttribute(attribute, indices);
-        morphArray.push(newAttribute);
-      }
-
-      geometry2.morphAttributes[name] = morphArray;
-    }
-
-    geometry2.morphTargetsRelative = this.morphTargetsRelative; // groups
-
-    const groups = this.groups;
-
-    for (let i = 0, l = groups.length; i < l; i++) {
-      const group = groups[i];
-      geometry2.addGroup(group.start, group.count, group.materialIndex);
-    }
-
-    return geometry2;
-  },
-  toJSON: function () {
-    const data = {
-      metadata: {
-        version: 4.5,
-        type: 'BufferGeometry',
-        generator: 'BufferGeometry.toJSON'
-      }
-    }; // standard BufferGeometry serialization
-
-    data.uuid = this.uuid;
-    data.type = this.type;
-    if (this.name !== '') data.name = this.name;
-    if (Object.keys(this.userData).length > 0) data.userData = this.userData;
-
-    if (this.parameters !== undefined) {
-      const parameters = this.parameters;
-
-      for (const key in parameters) {
-        if (parameters[key] !== undefined) data[key] = parameters[key];
-      }
-
-      return data;
-    }
-
-    data.data = {
-      attributes: {}
-    };
-    const index = this.index;
-
-    if (index !== null) {
-      data.data.index = {
-        type: index.array.constructor.name,
-        array: Array.prototype.slice.call(index.array)
-      };
-    }
-
-    const attributes = this.attributes;
-
-    for (const key in attributes) {
-      const attribute = attributes[key];
-      const attributeData = attribute.toJSON(data.data);
-      if (attribute.name !== '') attributeData.name = attribute.name;
-      data.data.attributes[key] = attributeData;
-    }
-
-    const morphAttributes = {};
-    let hasMorphAttributes = false;
-
-    for (const key in this.morphAttributes) {
-      const attributeArray = this.morphAttributes[key];
-      const array = [];
-
-      for (let i = 0, il = attributeArray.length; i < il; i++) {
-        const attribute = attributeArray[i];
-        const attributeData = attribute.toJSON(data.data);
-        if (attribute.name !== '') attributeData.name = attribute.name;
-        array.push(attributeData);
-      }
-
-      if (array.length > 0) {
-        morphAttributes[key] = array;
-        hasMorphAttributes = true;
-      }
-    }
-
-    if (hasMorphAttributes) {
-      data.data.morphAttributes = morphAttributes;
-      data.data.morphTargetsRelative = this.morphTargetsRelative;
-    }
-
-    const groups = this.groups;
-
-    if (groups.length > 0) {
-      data.data.groups = JSON.parse(JSON.stringify(groups));
-    }
-
-    const boundingSphere = this.boundingSphere;
-
-    if (boundingSphere !== null) {
-      data.data.boundingSphere = {
-        center: boundingSphere.center.toArray(),
-        radius: boundingSphere.radius
-      };
-    }
-
-    return data;
-  },
-  clone: function () {
-    /*
-     // Handle primitives
-    	 const parameters = this.parameters;
-    	 if ( parameters !== undefined ) {
-    	 const values = [];
-    	 for ( const key in parameters ) {
-    	 values.push( parameters[ key ] );
-    	 }
-    	 const geometry = Object.create( this.constructor.prototype );
-     this.constructor.apply( geometry, values );
-     return geometry;
-    	 }
-    	 return new this.constructor().copy( this );
-     */
-    return new BufferGeometry().copy(this);
-  },
-  copy: function (source) {
-    // reset
-    this.index = null;
-    this.attributes = {};
-    this.morphAttributes = {};
-    this.groups = [];
-    this.boundingBox = null;
-    this.boundingSphere = null; // used for storing cloned, shared data
-
-    const data = {}; // name
-
-    this.name = source.name; // index
-
-    const index = source.index;
-
-    if (index !== null) {
-      this.setIndex(index.clone(data));
-    } // attributes
-
-
-    const attributes = source.attributes;
-
-    for (const name in attributes) {
-      const attribute = attributes[name];
-      this.setAttribute(name, attribute.clone(data));
-    } // morph attributes
-
-
-    const morphAttributes = source.morphAttributes;
-
-    for (const name in morphAttributes) {
-      const array = [];
-      const morphAttribute = morphAttributes[name]; // morphAttribute: array of Float32BufferAttributes
-
-      for (let i = 0, l = morphAttribute.length; i < l; i++) {
-        array.push(morphAttribute[i].clone(data));
-      }
-
-      this.morphAttributes[name] = array;
-    }
-
-    this.morphTargetsRelative = source.morphTargetsRelative; // groups
-
-    const groups = source.groups;
-
-    for (let i = 0, l = groups.length; i < l; i++) {
-      const group = groups[i];
-      this.addGroup(group.start, group.count, group.materialIndex);
-    } // bounding box
-
-
-    const boundingBox = source.boundingBox;
-
-    if (boundingBox !== null) {
-      this.boundingBox = boundingBox.clone();
-    } // bounding sphere
-
-
-    const boundingSphere = source.boundingSphere;
-
-    if (boundingSphere !== null) {
-      this.boundingSphere = boundingSphere.clone();
-    } // draw range
-
-
-    this.drawRange.start = source.drawRange.start;
-    this.drawRange.count = source.drawRange.count; // user data
-
-    this.userData = source.userData;
-    return this;
-  },
-  dispose: function () {
-    this.dispatchEvent({
-      type: 'dispose'
-    });
-  }
-});
-
-const _inverseMatrix = new Matrix4();
-
-const _ray = new Ray();
-
-const _sphere = new Sphere();
-
-const _vA = new Vector3();
-
-const _vB = new Vector3();
-
-const _vC = new Vector3();
-
-const _tempA = new Vector3();
-
-const _tempB = new Vector3();
-
-const _tempC = new Vector3();
-
-const _morphA = new Vector3();
-
-const _morphB = new Vector3();
-
-const _morphC = new Vector3();
-
-const _uvA = new Vector2();
-
-const _uvB = new Vector2();
-
-const _uvC = new Vector2();
-
-const _intersectionPoint = new Vector3();
-
-const _intersectionPointWorld = new Vector3();
-
-function Mesh(geometry = new BufferGeometry(), material = new MeshBasicMaterial()) {
-  Object3D.call(this);
-  this.type = 'Mesh';
-  this.geometry = geometry;
-  this.material = material;
-  this.updateMorphTargets();
-}
-
-Mesh.prototype = Object.assign(Object.create(Object3D.prototype), {
-  constructor: Mesh,
-  isMesh: true,
-  copy: function (source) {
-    Object3D.prototype.copy.call(this, source);
-
-    if (source.morphTargetInfluences !== undefined) {
-      this.morphTargetInfluences = source.morphTargetInfluences.slice();
-    }
-
-    if (source.morphTargetDictionary !== undefined) {
-      this.morphTargetDictionary = Object.assign({}, source.morphTargetDictionary);
-    }
-
-    this.material = source.material;
-    this.geometry = source.geometry;
-    return this;
-  },
-  updateMorphTargets: function () {
-    const geometry = this.geometry;
-
-    if (geometry.isBufferGeometry) {
-      const morphAttributes = geometry.morphAttributes;
-      const keys = Object.keys(morphAttributes);
-
-      if (keys.length > 0) {
-        const morphAttribute = morphAttributes[keys[0]];
-
-        if (morphAttribute !== undefined) {
-          this.morphTargetInfluences = [];
-          this.morphTargetDictionary = {};
-
-          for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
-            const name = morphAttribute[m].name || String(m);
-            this.morphTargetInfluences.push(0);
-            this.morphTargetDictionary[name] = m;
-          }
-        }
-      }
-    } else {
-      const morphTargets = geometry.morphTargets;
-
-      if (morphTargets !== undefined && morphTargets.length > 0) {
-        console.error('THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
-      }
-    }
-  },
-  raycast: function (raycaster, intersects) {
-    const geometry = this.geometry;
-    const material = this.material;
-    const matrixWorld = this.matrixWorld;
-    if (material === undefined) return; // Checking boundingSphere distance to ray
-
-    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
-
-    _sphere.copy(geometry.boundingSphere);
-
-    _sphere.applyMatrix4(matrixWorld);
-
-    if (raycaster.ray.intersectsSphere(_sphere) === false) return; //
-
-    _inverseMatrix.copy(matrixWorld).invert();
-
-    _ray.copy(raycaster.ray).applyMatrix4(_inverseMatrix); // Check boundingBox before continuing
-
-
-    if (geometry.boundingBox !== null) {
-      if (_ray.intersectsBox(geometry.boundingBox) === false) return;
-    }
-
-    let intersection;
-
-    if (geometry.isBufferGeometry) {
-      const index = geometry.index;
-      const position = geometry.attributes.position;
-      const morphPosition = geometry.morphAttributes.position;
-      const morphTargetsRelative = geometry.morphTargetsRelative;
-      const uv = geometry.attributes.uv;
-      const uv2 = geometry.attributes.uv2;
-      const groups = geometry.groups;
-      const drawRange = geometry.drawRange;
-
-      if (index !== null) {
-        // indexed buffer geometry
-        if (Array.isArray(material)) {
-          for (let i = 0, il = groups.length; i < il; i++) {
-            const group = groups[i];
-            const groupMaterial = material[group.materialIndex];
-            const start = Math.max(group.start, drawRange.start);
-            const end = Math.min(group.start + group.count, drawRange.start + drawRange.count);
-
-            for (let j = start, jl = end; j < jl; j += 3) {
-              const a = index.getX(j);
-              const b = index.getX(j + 1);
-              const c = index.getX(j + 2);
-              intersection = checkBufferGeometryIntersection(this, groupMaterial, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);
-
-              if (intersection) {
-                intersection.faceIndex = Math.floor(j / 3); // triangle number in indexed buffer semantics
-
-                intersection.face.materialIndex = group.materialIndex;
-                intersects.push(intersection);
-              }
-            }
-          }
-        } else {
-          const start = Math.max(0, drawRange.start);
-          const end = Math.min(index.count, drawRange.start + drawRange.count);
-
-          for (let i = start, il = end; i < il; i += 3) {
-            const a = index.getX(i);
-            const b = index.getX(i + 1);
-            const c = index.getX(i + 2);
-            intersection = checkBufferGeometryIntersection(this, material, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);
-
-            if (intersection) {
-              intersection.faceIndex = Math.floor(i / 3); // triangle number in indexed buffer semantics
-
-              intersects.push(intersection);
-            }
-          }
-        }
-      } else if (position !== undefined) {
-        // non-indexed buffer geometry
-        if (Array.isArray(material)) {
-          for (let i = 0, il = groups.length; i < il; i++) {
-            const group = groups[i];
-            const groupMaterial = material[group.materialIndex];
-            const start = Math.max(group.start, drawRange.start);
-            const end = Math.min(group.start + group.count, drawRange.start + drawRange.count);
-
-            for (let j = start, jl = end; j < jl; j += 3) {
-              const a = j;
-              const b = j + 1;
-              const c = j + 2;
-              intersection = checkBufferGeometryIntersection(this, groupMaterial, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);
-
-              if (intersection) {
-                intersection.faceIndex = Math.floor(j / 3); // triangle number in non-indexed buffer semantics
-
-                intersection.face.materialIndex = group.materialIndex;
-                intersects.push(intersection);
-              }
-            }
-          }
-        } else {
-          const start = Math.max(0, drawRange.start);
-          const end = Math.min(position.count, drawRange.start + drawRange.count);
-
-          for (let i = start, il = end; i < il; i += 3) {
-            const a = i;
-            const b = i + 1;
-            const c = i + 2;
-            intersection = checkBufferGeometryIntersection(this, material, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);
-
-            if (intersection) {
-              intersection.faceIndex = Math.floor(i / 3); // triangle number in non-indexed buffer semantics
-
-              intersects.push(intersection);
-            }
-          }
-        }
-      }
-    } else if (geometry.isGeometry) {
-      console.error('THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
-    }
-  }
-});
-
-function checkIntersection(object, material, raycaster, ray, pA, pB, pC, point) {
-  let intersect;
-
-  if (material.side === BackSide) {
-    intersect = ray.intersectTriangle(pC, pB, pA, true, point);
-  } else {
-    intersect = ray.intersectTriangle(pA, pB, pC, material.side !== DoubleSide, point);
-  }
-
-  if (intersect === null) return null;
-
-  _intersectionPointWorld.copy(point);
-
-  _intersectionPointWorld.applyMatrix4(object.matrixWorld);
-
-  const distance = raycaster.ray.origin.distanceTo(_intersectionPointWorld);
-  if (distance < raycaster.near || distance > raycaster.far) return null;
-  return {
-    distance: distance,
-    point: _intersectionPointWorld.clone(),
-    object: object
-  };
-}
-
-function checkBufferGeometryIntersection(object, material, raycaster, ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c) {
-  _vA.fromBufferAttribute(position, a);
-
-  _vB.fromBufferAttribute(position, b);
-
-  _vC.fromBufferAttribute(position, c);
-
-  const morphInfluences = object.morphTargetInfluences;
-
-  if (material.morphTargets && morphPosition && morphInfluences) {
-    _morphA.set(0, 0, 0);
-
-    _morphB.set(0, 0, 0);
-
-    _morphC.set(0, 0, 0);
-
-    for (let i = 0, il = morphPosition.length; i < il; i++) {
-      const influence = morphInfluences[i];
-      const morphAttribute = morphPosition[i];
-      if (influence === 0) continue;
-
-      _tempA.fromBufferAttribute(morphAttribute, a);
-
-      _tempB.fromBufferAttribute(morphAttribute, b);
-
-      _tempC.fromBufferAttribute(morphAttribute, c);
-
-      if (morphTargetsRelative) {
-        _morphA.addScaledVector(_tempA, influence);
-
-        _morphB.addScaledVector(_tempB, influence);
-
-        _morphC.addScaledVector(_tempC, influence);
-      } else {
-        _morphA.addScaledVector(_tempA.sub(_vA), influence);
-
-        _morphB.addScaledVector(_tempB.sub(_vB), influence);
-
-        _morphC.addScaledVector(_tempC.sub(_vC), influence);
-      }
-    }
-
-    _vA.add(_morphA);
-
-    _vB.add(_morphB);
-
-    _vC.add(_morphC);
-  }
-
-  if (object.isSkinnedMesh && material.skinning) {
-    object.boneTransform(a, _vA);
-    object.boneTransform(b, _vB);
-    object.boneTransform(c, _vC);
-  }
-
-  const intersection = checkIntersection(object, material, raycaster, ray, _vA, _vB, _vC, _intersectionPoint);
-
-  if (intersection) {
-    if (uv) {
-      _uvA.fromBufferAttribute(uv, a);
-
-      _uvB.fromBufferAttribute(uv, b);
-
-      _uvC.fromBufferAttribute(uv, c);
-
-      intersection.uv = Triangle.getUV(_intersectionPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2());
-    }
-
-    if (uv2) {
-      _uvA.fromBufferAttribute(uv2, a);
-
-      _uvB.fromBufferAttribute(uv2, b);
-
-      _uvC.fromBufferAttribute(uv2, c);
-
-      intersection.uv2 = Triangle.getUV(_intersectionPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2());
-    }
-
-    const face = {
-      a: a,
-      b: b,
-      c: c,
-      normal: new Vector3(),
-      materialIndex: 0
-    };
-    Triangle.getNormal(_vA, _vB, _vC, face.normal);
-    intersection.face = face;
-  }
-
-  return intersection;
-}
-
-class BoxGeometry extends BufferGeometry {
-  constructor(width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1) {
-    super();
-    this.type = 'BoxGeometry';
-    this.parameters = {
-      width: width,
-      height: height,
-      depth: depth,
-      widthSegments: widthSegments,
-      heightSegments: heightSegments,
-      depthSegments: depthSegments
-    };
-    const scope = this; // segments
-
-    widthSegments = Math.floor(widthSegments);
-    heightSegments = Math.floor(heightSegments);
-    depthSegments = Math.floor(depthSegments); // buffers
-
-    const indices = [];
-    const vertices = [];
-    const normals = [];
-    const uvs = []; // helper variables
-
-    let numberOfVertices = 0;
-    let groupStart = 0; // build each side of the box geometry
-
-    buildPlane('z', 'y', 'x', -1, -1, depth, height, width, depthSegments, heightSegments, 0); // px
-
-    buildPlane('z', 'y', 'x', 1, -1, depth, height, -width, depthSegments, heightSegments, 1); // nx
-
-    buildPlane('x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2); // py
-
-    buildPlane('x', 'z', 'y', 1, -1, width, depth, -height, widthSegments, depthSegments, 3); // ny
-
-    buildPlane('x', 'y', 'z', 1, -1, width, height, depth, widthSegments, heightSegments, 4); // pz
-
-    buildPlane('x', 'y', 'z', -1, -1, width, height, -depth, widthSegments, heightSegments, 5); // nz
-    // build geometry
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
-
-    function buildPlane(u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex) {
-      const segmentWidth = width / gridX;
-      const segmentHeight = height / gridY;
-      const widthHalf = width / 2;
-      const heightHalf = height / 2;
-      const depthHalf = depth / 2;
-      const gridX1 = gridX + 1;
-      const gridY1 = gridY + 1;
-      let vertexCounter = 0;
-      let groupCount = 0;
-      const vector = new Vector3(); // generate vertices, normals and uvs
-
-      for (let iy = 0; iy < gridY1; iy++) {
-        const y = iy * segmentHeight - heightHalf;
-
-        for (let ix = 0; ix < gridX1; ix++) {
-          const x = ix * segmentWidth - widthHalf; // set values to correct vector component
-
-          vector[u] = x * udir;
-          vector[v] = y * vdir;
-          vector[w] = depthHalf; // now apply vector to vertex buffer
-
-          vertices.push(vector.x, vector.y, vector.z); // set values to correct vector component
-
-          vector[u] = 0;
-          vector[v] = 0;
-          vector[w] = depth > 0 ? 1 : -1; // now apply vector to normal buffer
-
-          normals.push(vector.x, vector.y, vector.z); // uvs
-
-          uvs.push(ix / gridX);
-          uvs.push(1 - iy / gridY); // counters
-
-          vertexCounter += 1;
-        }
-      } // indices
-      // 1. you need three indices to draw a single face
-      // 2. a single segment consists of two faces
-      // 3. so we need to generate six (2*3) indices per segment
-
-
-      for (let iy = 0; iy < gridY; iy++) {
-        for (let ix = 0; ix < gridX; ix++) {
-          const a = numberOfVertices + ix + gridX1 * iy;
-          const b = numberOfVertices + ix + gridX1 * (iy + 1);
-          const c = numberOfVertices + (ix + 1) + gridX1 * (iy + 1);
-          const d = numberOfVertices + (ix + 1) + gridX1 * iy; // faces
-
-          indices.push(a, b, d);
-          indices.push(b, c, d); // increase counter
-
-          groupCount += 6;
-        }
-      } // add a group to the geometry. this will ensure multi material support
-
-
-      scope.addGroup(groupStart, groupCount, materialIndex); // calculate new start value for groups
-
-      groupStart += groupCount; // update total number of vertices
-
-      numberOfVertices += vertexCounter;
-    }
-  }
-
-}
-/**
- * Uniform Utilities
- */
-
-
-exports.BoxGeometry = exports.BoxBufferGeometry = BoxGeometry;
-
-function cloneUniforms(src) {
-  const dst = {};
-
-  for (const u in src) {
-    dst[u] = {};
-
-    for (const p in src[u]) {
-      const property = src[u][p];
-
-      if (property && (property.isColor || property.isMatrix3 || property.isMatrix4 || property.isVector2 || property.isVector3 || property.isVector4 || property.isTexture || property.isQuaternion)) {
-        dst[u][p] = property.clone();
-      } else if (Array.isArray(property)) {
-        dst[u][p] = property.slice();
-      } else {
-        dst[u][p] = property;
-      }
-    }
-  }
-
-  return dst;
-}
-
-function mergeUniforms(uniforms) {
-  const merged = {};
-
-  for (let u = 0; u < uniforms.length; u++) {
-    const tmp = cloneUniforms(uniforms[u]);
-
-    for (const p in tmp) {
-      merged[p] = tmp[p];
-    }
-  }
-
-  return merged;
-} // Legacy
-
-
-const UniformsUtils = {
-  clone: cloneUniforms,
-  merge: mergeUniforms
-};
-exports.UniformsUtils = UniformsUtils;
-var default_vertex = "void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";
-var default_fragment = "void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";
-/**
- * parameters = {
- *  defines: { "label" : "value" },
- *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
- *
- *  fragmentShader: <string>,
- *  vertexShader: <string>,
- *
- *  wireframe: <boolean>,
- *  wireframeLinewidth: <float>,
- *
- *  lights: <bool>,
- *
- *  skinning: <bool>,
- *  morphTargets: <bool>,
- *  morphNormals: <bool>
- * }
- */
-
-function ShaderMaterial(parameters) {
-  Material.call(this);
-  this.type = 'ShaderMaterial';
-  this.defines = {};
-  this.uniforms = {};
-  this.vertexShader = default_vertex;
-  this.fragmentShader = default_fragment;
-  this.linewidth = 1;
-  this.wireframe = false;
-  this.wireframeLinewidth = 1;
-  this.fog = false; // set to use scene fog
-
-  this.lights = false; // set to use scene lights
-
-  this.clipping = false; // set to use user-defined clipping planes
-
-  this.skinning = false; // set to use skinning attribute streams
-
-  this.morphTargets = false; // set to use morph targets
-
-  this.morphNormals = false; // set to use morph normals
-
-  this.extensions = {
-    derivatives: false,
-    // set to use derivatives
-    fragDepth: false,
-    // set to use fragment depth values
-    drawBuffers: false,
-    // set to use draw buffers
-    shaderTextureLOD: false // set to use shader texture LOD
-
-  }; // When rendered geometry doesn't include these attributes but the material does,
-  // use these default values in WebGL. This avoids errors when buffer data is missing.
-
-  this.defaultAttributeValues = {
-    'color': [1, 1, 1],
-    'uv': [0, 0],
-    'uv2': [0, 0]
-  };
-  this.index0AttributeName = undefined;
-  this.uniformsNeedUpdate = false;
-  this.glslVersion = null;
-
-  if (parameters !== undefined) {
-    if (parameters.attributes !== undefined) {
-      console.error('THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.');
-    }
-
-    this.setValues(parameters);
-  }
-}
-
-ShaderMaterial.prototype = Object.create(Material.prototype);
-ShaderMaterial.prototype.constructor = ShaderMaterial;
-ShaderMaterial.prototype.isShaderMaterial = true;
-
-ShaderMaterial.prototype.copy = function (source) {
-  Material.prototype.copy.call(this, source);
-  this.fragmentShader = source.fragmentShader;
-  this.vertexShader = source.vertexShader;
-  this.uniforms = cloneUniforms(source.uniforms);
-  this.defines = Object.assign({}, source.defines);
-  this.wireframe = source.wireframe;
-  this.wireframeLinewidth = source.wireframeLinewidth;
-  this.lights = source.lights;
-  this.clipping = source.clipping;
-  this.skinning = source.skinning;
-  this.morphTargets = source.morphTargets;
-  this.morphNormals = source.morphNormals;
-  this.extensions = Object.assign({}, source.extensions);
-  this.glslVersion = source.glslVersion;
-  return this;
-};
-
-ShaderMaterial.prototype.toJSON = function (meta) {
-  const data = Material.prototype.toJSON.call(this, meta);
-  data.glslVersion = this.glslVersion;
-  data.uniforms = {};
-
-  for (const name in this.uniforms) {
-    const uniform = this.uniforms[name];
-    const value = uniform.value;
-
-    if (value && value.isTexture) {
-      data.uniforms[name] = {
-        type: 't',
-        value: value.toJSON(meta).uuid
-      };
-    } else if (value && value.isColor) {
-      data.uniforms[name] = {
-        type: 'c',
-        value: value.getHex()
-      };
-    } else if (value && value.isVector2) {
-      data.uniforms[name] = {
-        type: 'v2',
-        value: value.toArray()
-      };
-    } else if (value && value.isVector3) {
-      data.uniforms[name] = {
-        type: 'v3',
-        value: value.toArray()
-      };
-    } else if (value && value.isVector4) {
-      data.uniforms[name] = {
-        type: 'v4',
-        value: value.toArray()
-      };
-    } else if (value && value.isMatrix3) {
-      data.uniforms[name] = {
-        type: 'm3',
-        value: value.toArray()
-      };
-    } else if (value && value.isMatrix4) {
-      data.uniforms[name] = {
-        type: 'm4',
-        value: value.toArray()
-      };
-    } else {
-      data.uniforms[name] = {
-        value: value
-      }; // note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far
-    }
-  }
-
-  if (Object.keys(this.defines).length > 0) data.defines = this.defines;
-  data.vertexShader = this.vertexShader;
-  data.fragmentShader = this.fragmentShader;
-  const extensions = {};
-
-  for (const key in this.extensions) {
-    if (this.extensions[key] === true) extensions[key] = true;
-  }
-
-  if (Object.keys(extensions).length > 0) data.extensions = extensions;
-  return data;
-};
-
-function Camera() {
-  Object3D.call(this);
-  this.type = 'Camera';
-  this.matrixWorldInverse = new Matrix4();
-  this.projectionMatrix = new Matrix4();
-  this.projectionMatrixInverse = new Matrix4();
-}
-
-Camera.prototype = Object.assign(Object.create(Object3D.prototype), {
-  constructor: Camera,
-  isCamera: true,
-  copy: function (source, recursive) {
-    Object3D.prototype.copy.call(this, source, recursive);
-    this.matrixWorldInverse.copy(source.matrixWorldInverse);
-    this.projectionMatrix.copy(source.projectionMatrix);
-    this.projectionMatrixInverse.copy(source.projectionMatrixInverse);
-    return this;
-  },
-  getWorldDirection: function (target) {
-    if (target === undefined) {
-      console.warn('THREE.Camera: .getWorldDirection() target is now required');
-      target = new Vector3();
-    }
-
-    this.updateWorldMatrix(true, false);
-    const e = this.matrixWorld.elements;
-    return target.set(-e[8], -e[9], -e[10]).normalize();
-  },
-  updateMatrixWorld: function (force) {
-    Object3D.prototype.updateMatrixWorld.call(this, force);
-    this.matrixWorldInverse.copy(this.matrixWorld).invert();
-  },
-  updateWorldMatrix: function (updateParents, updateChildren) {
-    Object3D.prototype.updateWorldMatrix.call(this, updateParents, updateChildren);
-    this.matrixWorldInverse.copy(this.matrixWorld).invert();
-  },
-  clone: function () {
-    return new this.constructor().copy(this);
-  }
-});
-
-function PerspectiveCamera(fov = 50, aspect = 1, near = 0.1, far = 2000) {
-  Camera.call(this);
-  this.type = 'PerspectiveCamera';
-  this.fov = fov;
-  this.zoom = 1;
-  this.near = near;
-  this.far = far;
-  this.focus = 10;
-  this.aspect = aspect;
-  this.view = null;
-  this.filmGauge = 35; // width of the film (default in millimeters)
-
-  this.filmOffset = 0; // horizontal film offset (same unit as gauge)
-
-  this.updateProjectionMatrix();
-}
-
-PerspectiveCamera.prototype = Object.assign(Object.create(Camera.prototype), {
-  constructor: PerspectiveCamera,
-  isPerspectiveCamera: true,
-  copy: function (source, recursive) {
-    Camera.prototype.copy.call(this, source, recursive);
-    this.fov = source.fov;
-    this.zoom = source.zoom;
-    this.near = source.near;
-    this.far = source.far;
-    this.focus = source.focus;
-    this.aspect = source.aspect;
-    this.view = source.view === null ? null : Object.assign({}, source.view);
-    this.filmGauge = source.filmGauge;
-    this.filmOffset = source.filmOffset;
-    return this;
-  },
-
-  /**
-   * Sets the FOV by focal length in respect to the current .filmGauge.
-   *
-   * The default film gauge is 35, so that the focal length can be specified for
-   * a 35mm (full frame) camera.
-   *
-   * Values for focal length and film gauge must have the same unit.
-   */
-  setFocalLength: function (focalLength) {
-    /** see {@link http://www.bobatkins.com/photography/technical/field_of_view.html} */
-    const vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;
-    this.fov = MathUtils.RAD2DEG * 2 * Math.atan(vExtentSlope);
-    this.updateProjectionMatrix();
-  },
-
-  /**
-   * Calculates the focal length from the current .fov and .filmGauge.
-   */
-  getFocalLength: function () {
-    const vExtentSlope = Math.tan(MathUtils.DEG2RAD * 0.5 * this.fov);
-    return 0.5 * this.getFilmHeight() / vExtentSlope;
-  },
-  getEffectiveFOV: function () {
-    return MathUtils.RAD2DEG * 2 * Math.atan(Math.tan(MathUtils.DEG2RAD * 0.5 * this.fov) / this.zoom);
-  },
-  getFilmWidth: function () {
-    // film not completely covered in portrait format (aspect < 1)
-    return this.filmGauge * Math.min(this.aspect, 1);
-  },
-  getFilmHeight: function () {
-    // film not completely covered in landscape format (aspect > 1)
-    return this.filmGauge / Math.max(this.aspect, 1);
-  },
-
-  /**
-   * Sets an offset in a larger frustum. This is useful for multi-window or
-   * multi-monitor/multi-machine setups.
-   *
-   * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
-   * the monitors are in grid like this
-   *
-   *   +---+---+---+
-   *   | A | B | C |
-   *   +---+---+---+
-   *   | D | E | F |
-   *   +---+---+---+
-   *
-   * then for each monitor you would call it like this
-   *
-   *   const w = 1920;
-   *   const h = 1080;
-   *   const fullWidth = w * 3;
-   *   const fullHeight = h * 2;
-   *
-   *   --A--
-   *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
-   *   --B--
-   *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
-   *   --C--
-   *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
-   *   --D--
-   *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
-   *   --E--
-   *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
-   *   --F--
-   *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
-   *
-   *   Note there is no reason monitors have to be the same size or in a grid.
-   */
-  setViewOffset: function (fullWidth, fullHeight, x, y, width, height) {
-    this.aspect = fullWidth / fullHeight;
-
-    if (this.view === null) {
-      this.view = {
-        enabled: true,
-        fullWidth: 1,
-        fullHeight: 1,
-        offsetX: 0,
-        offsetY: 0,
-        width: 1,
-        height: 1
-      };
-    }
-
-    this.view.enabled = true;
-    this.view.fullWidth = fullWidth;
-    this.view.fullHeight = fullHeight;
-    this.view.offsetX = x;
-    this.view.offsetY = y;
-    this.view.width = width;
-    this.view.height = height;
-    this.updateProjectionMatrix();
-  },
-  clearViewOffset: function () {
-    if (this.view !== null) {
-      this.view.enabled = false;
-    }
-
-    this.updateProjectionMatrix();
-  },
-  updateProjectionMatrix: function () {
-    const near = this.near;
-    let top = near * Math.tan(MathUtils.DEG2RAD * 0.5 * this.fov) / this.zoom;
-    let height = 2 * top;
-    let width = this.aspect * height;
-    let left = -0.5 * width;
-    const view = this.view;
-
-    if (this.view !== null && this.view.enabled) {
-      const fullWidth = view.fullWidth,
-            fullHeight = view.fullHeight;
-      left += view.offsetX * width / fullWidth;
-      top -= view.offsetY * height / fullHeight;
-      width *= view.width / fullWidth;
-      height *= view.height / fullHeight;
-    }
-
-    const skew = this.filmOffset;
-    if (skew !== 0) left += near * skew / this.getFilmWidth();
-    this.projectionMatrix.makePerspective(left, left + width, top, top - height, near, this.far);
-    this.projectionMatrixInverse.copy(this.projectionMatrix).invert();
-  },
-  toJSON: function (meta) {
-    const data = Object3D.prototype.toJSON.call(this, meta);
-    data.object.fov = this.fov;
-    data.object.zoom = this.zoom;
-    data.object.near = this.near;
-    data.object.far = this.far;
-    data.object.focus = this.focus;
-    data.object.aspect = this.aspect;
-    if (this.view !== null) data.object.view = Object.assign({}, this.view);
-    data.object.filmGauge = this.filmGauge;
-    data.object.filmOffset = this.filmOffset;
-    return data;
-  }
-});
-const fov = 90,
-      aspect = 1;
-
-class CubeCamera extends Object3D {
-  constructor(near, far, renderTarget) {
-    super();
-    this.type = 'CubeCamera';
-
-    if (renderTarget.isWebGLCubeRenderTarget !== true) {
-      console.error('THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.');
-      return;
-    }
-
-    this.renderTarget = renderTarget;
-    const cameraPX = new PerspectiveCamera(fov, aspect, near, far);
-    cameraPX.layers = this.layers;
-    cameraPX.up.set(0, -1, 0);
-    cameraPX.lookAt(new Vector3(1, 0, 0));
-    this.add(cameraPX);
-    const cameraNX = new PerspectiveCamera(fov, aspect, near, far);
-    cameraNX.layers = this.layers;
-    cameraNX.up.set(0, -1, 0);
-    cameraNX.lookAt(new Vector3(-1, 0, 0));
-    this.add(cameraNX);
-    const cameraPY = new PerspectiveCamera(fov, aspect, near, far);
-    cameraPY.layers = this.layers;
-    cameraPY.up.set(0, 0, 1);
-    cameraPY.lookAt(new Vector3(0, 1, 0));
-    this.add(cameraPY);
-    const cameraNY = new PerspectiveCamera(fov, aspect, near, far);
-    cameraNY.layers = this.layers;
-    cameraNY.up.set(0, 0, -1);
-    cameraNY.lookAt(new Vector3(0, -1, 0));
-    this.add(cameraNY);
-    const cameraPZ = new PerspectiveCamera(fov, aspect, near, far);
-    cameraPZ.layers = this.layers;
-    cameraPZ.up.set(0, -1, 0);
-    cameraPZ.lookAt(new Vector3(0, 0, 1));
-    this.add(cameraPZ);
-    const cameraNZ = new PerspectiveCamera(fov, aspect, near, far);
-    cameraNZ.layers = this.layers;
-    cameraNZ.up.set(0, -1, 0);
-    cameraNZ.lookAt(new Vector3(0, 0, -1));
-    this.add(cameraNZ);
-  }
-
-  update(renderer, scene) {
-    if (this.parent === null) this.updateMatrixWorld();
-    const renderTarget = this.renderTarget;
-    const [cameraPX, cameraNX, cameraPY, cameraNY, cameraPZ, cameraNZ] = this.children;
-    const currentXrEnabled = renderer.xr.enabled;
-    const currentRenderTarget = renderer.getRenderTarget();
-    renderer.xr.enabled = false;
-    const generateMipmaps = renderTarget.texture.generateMipmaps;
-    renderTarget.texture.generateMipmaps = false;
-    renderer.setRenderTarget(renderTarget, 0);
-    renderer.render(scene, cameraPX);
-    renderer.setRenderTarget(renderTarget, 1);
-    renderer.render(scene, cameraNX);
-    renderer.setRenderTarget(renderTarget, 2);
-    renderer.render(scene, cameraPY);
-    renderer.setRenderTarget(renderTarget, 3);
-    renderer.render(scene, cameraNY);
-    renderer.setRenderTarget(renderTarget, 4);
-    renderer.render(scene, cameraPZ);
-    renderTarget.texture.generateMipmaps = generateMipmaps;
-    renderer.setRenderTarget(renderTarget, 5);
-    renderer.render(scene, cameraNZ);
-    renderer.setRenderTarget(currentRenderTarget);
-    renderer.xr.enabled = currentXrEnabled;
-  }
-
-}
-
-exports.CubeCamera = CubeCamera;
-
-class CubeTexture extends Texture {
-  constructor(images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding) {
-    images = images !== undefined ? images : [];
-    mapping = mapping !== undefined ? mapping : CubeReflectionMapping;
-    format = format !== undefined ? format : RGBFormat;
-    super(images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding); // Why CubeTexture._needsFlipEnvMap is necessary:
-    //
-    // By convention -- likely based on the RenderMan spec from the 1990's -- cube maps are specified by WebGL (and three.js)
-    // in a coordinate system in which positive-x is to the right when looking up the positive-z axis -- in other words,
-    // in a left-handed coordinate system. By continuing this convention, preexisting cube maps continued to render correctly.
-    // three.js uses a right-handed coordinate system. So environment maps used in three.js appear to have px and nx swapped
-    // and the flag _needsFlipEnvMap controls this conversion. The flip is not required (and thus _needsFlipEnvMap is set to false)
-    // when using WebGLCubeRenderTarget.texture as a cube texture.
-
-    this._needsFlipEnvMap = true;
-    this.flipY = false;
-  }
-
-  get images() {
-    return this.image;
-  }
-
-  set images(value) {
-    this.image = value;
-  }
-
-}
-
-exports.CubeTexture = CubeTexture;
-CubeTexture.prototype.isCubeTexture = true;
-
-class WebGLCubeRenderTarget extends WebGLRenderTarget {
-  constructor(size, options, dummy) {
-    if (Number.isInteger(options)) {
-      console.warn('THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )');
-      options = dummy;
-    }
-
-    super(size, size, options);
-    options = options || {};
-    this.texture = new CubeTexture(undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding);
-    this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
-    this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;
-    this.texture._needsFlipEnvMap = false;
-  }
-
-  fromEquirectangularTexture(renderer, texture) {
-    this.texture.type = texture.type;
-    this.texture.format = RGBAFormat; // see #18859
-
-    this.texture.encoding = texture.encoding;
-    this.texture.generateMipmaps = texture.generateMipmaps;
-    this.texture.minFilter = texture.minFilter;
-    this.texture.magFilter = texture.magFilter;
-    const shader = {
-      uniforms: {
-        tEquirect: {
-          value: null
-        }
-      },
-      vertexShader:
-      /* glsl */
-      `
-
-				varying vec3 vWorldDirection;
-
-				vec3 transformDirection( in vec3 dir, in mat4 matrix ) {
-
-					return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );
-
-				}
-
-				void main() {
-
-					vWorldDirection = transformDirection( position, modelMatrix );
-
-					#include <begin_vertex>
-					#include <project_vertex>
-
-				}
-			`,
-      fragmentShader:
-      /* glsl */
-      `
-
-				uniform sampler2D tEquirect;
-
-				varying vec3 vWorldDirection;
-
-				#include <common>
-
-				void main() {
-
-					vec3 direction = normalize( vWorldDirection );
-
-					vec2 sampleUV = equirectUv( direction );
-
-					gl_FragColor = texture2D( tEquirect, sampleUV );
-
-				}
-			`
-    };
-    const geometry = new BoxGeometry(5, 5, 5);
-    const material = new ShaderMaterial({
-      name: 'CubemapFromEquirect',
-      uniforms: cloneUniforms(shader.uniforms),
-      vertexShader: shader.vertexShader,
-      fragmentShader: shader.fragmentShader,
-      side: BackSide,
-      blending: NoBlending
-    });
-    material.uniforms.tEquirect.value = texture;
-    const mesh = new Mesh(geometry, material);
-    const currentMinFilter = texture.minFilter; // Avoid blurred poles
-
-    if (texture.minFilter === LinearMipmapLinearFilter) texture.minFilter = LinearFilter;
-    const camera = new CubeCamera(1, 10, this);
-    camera.update(renderer, mesh);
-    texture.minFilter = currentMinFilter;
-    mesh.geometry.dispose();
-    mesh.material.dispose();
-    return this;
-  }
-
-  clear(renderer, color, depth, stencil) {
-    const currentRenderTarget = renderer.getRenderTarget();
-
-    for (let i = 0; i < 6; i++) {
-      renderer.setRenderTarget(this, i);
-      renderer.clear(color, depth, stencil);
-    }
-
-    renderer.setRenderTarget(currentRenderTarget);
-  }
-
-}
-
-exports.WebGLCubeRenderTarget = WebGLCubeRenderTarget;
-WebGLCubeRenderTarget.prototype.isWebGLCubeRenderTarget = true;
-
-class DataTexture extends Texture {
-  constructor(data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding) {
-    super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding);
-    this.image = {
-      data: data || null,
-      width: width || 1,
-      height: height || 1
-    };
-    this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
-    this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
-    this.generateMipmaps = false;
-    this.flipY = false;
-    this.unpackAlignment = 1;
-    this.needsUpdate = true;
-  }
-
-}
-
-exports.DataTexture = DataTexture;
-DataTexture.prototype.isDataTexture = true;
-
-const _sphere$1 =
-/*@__PURE__*/
-new Sphere();
-
-const _vector$5 =
-/*@__PURE__*/
-new Vector3();
-
-class Frustum {
-  constructor(p0 = new Plane(), p1 = new Plane(), p2 = new Plane(), p3 = new Plane(), p4 = new Plane(), p5 = new Plane()) {
-    this.planes = [p0, p1, p2, p3, p4, p5];
-  }
-
-  set(p0, p1, p2, p3, p4, p5) {
-    const planes = this.planes;
-    planes[0].copy(p0);
-    planes[1].copy(p1);
-    planes[2].copy(p2);
-    planes[3].copy(p3);
-    planes[4].copy(p4);
-    planes[5].copy(p5);
-    return this;
-  }
-
-  copy(frustum) {
-    const planes = this.planes;
-
-    for (let i = 0; i < 6; i++) {
-      planes[i].copy(frustum.planes[i]);
-    }
-
-    return this;
-  }
-
-  setFromProjectionMatrix(m) {
-    const planes = this.planes;
-    const me = m.elements;
-    const me0 = me[0],
-          me1 = me[1],
-          me2 = me[2],
-          me3 = me[3];
-    const me4 = me[4],
-          me5 = me[5],
-          me6 = me[6],
-          me7 = me[7];
-    const me8 = me[8],
-          me9 = me[9],
-          me10 = me[10],
-          me11 = me[11];
-    const me12 = me[12],
-          me13 = me[13],
-          me14 = me[14],
-          me15 = me[15];
-    planes[0].setComponents(me3 - me0, me7 - me4, me11 - me8, me15 - me12).normalize();
-    planes[1].setComponents(me3 + me0, me7 + me4, me11 + me8, me15 + me12).normalize();
-    planes[2].setComponents(me3 + me1, me7 + me5, me11 + me9, me15 + me13).normalize();
-    planes[3].setComponents(me3 - me1, me7 - me5, me11 - me9, me15 - me13).normalize();
-    planes[4].setComponents(me3 - me2, me7 - me6, me11 - me10, me15 - me14).normalize();
-    planes[5].setComponents(me3 + me2, me7 + me6, me11 + me10, me15 + me14).normalize();
-    return this;
-  }
-
-  intersectsObject(object) {
-    const geometry = object.geometry;
-    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
-
-    _sphere$1.copy(geometry.boundingSphere).applyMatrix4(object.matrixWorld);
-
-    return this.intersectsSphere(_sphere$1);
-  }
-
-  intersectsSprite(sprite) {
-    _sphere$1.center.set(0, 0, 0);
-
-    _sphere$1.radius = 0.7071067811865476;
-
-    _sphere$1.applyMatrix4(sprite.matrixWorld);
-
-    return this.intersectsSphere(_sphere$1);
-  }
-
-  intersectsSphere(sphere) {
-    const planes = this.planes;
-    const center = sphere.center;
-    const negRadius = -sphere.radius;
-
-    for (let i = 0; i < 6; i++) {
-      const distance = planes[i].distanceToPoint(center);
-
-      if (distance < negRadius) {
-        return false;
-      }
-    }
-
-    return true;
-  }
-
-  intersectsBox(box) {
-    const planes = this.planes;
-
-    for (let i = 0; i < 6; i++) {
-      const plane = planes[i]; // corner at max distance
-
-      _vector$5.x = plane.normal.x > 0 ? box.max.x : box.min.x;
-      _vector$5.y = plane.normal.y > 0 ? box.max.y : box.min.y;
-      _vector$5.z = plane.normal.z > 0 ? box.max.z : box.min.z;
-
-      if (plane.distanceToPoint(_vector$5) < 0) {
-        return false;
-      }
-    }
-
-    return true;
-  }
-
-  containsPoint(point) {
-    const planes = this.planes;
-
-    for (let i = 0; i < 6; i++) {
-      if (planes[i].distanceToPoint(point) < 0) {
-        return false;
-      }
-    }
-
-    return true;
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-}
-
-exports.Frustum = Frustum;
-
-function WebGLAnimation() {
-  let context = null;
-  let isAnimating = false;
-  let animationLoop = null;
-  let requestId = null;
-
-  function onAnimationFrame(time, frame) {
-    animationLoop(time, frame);
-    requestId = context.requestAnimationFrame(onAnimationFrame);
-  }
-
-  return {
-    start: function () {
-      if (isAnimating === true) return;
-      if (animationLoop === null) return;
-      requestId = context.requestAnimationFrame(onAnimationFrame);
-      isAnimating = true;
-    },
-    stop: function () {
-      context.cancelAnimationFrame(requestId);
-      isAnimating = false;
-    },
-    setAnimationLoop: function (callback) {
-      animationLoop = callback;
-    },
-    setContext: function (value) {
-      context = value;
-    }
-  };
-}
-
-function WebGLAttributes(gl, capabilities) {
-  const isWebGL2 = capabilities.isWebGL2;
-  const buffers = new WeakMap();
-
-  function createBuffer(attribute, bufferType) {
-    const array = attribute.array;
-    const usage = attribute.usage;
-    const buffer = gl.createBuffer();
-    gl.bindBuffer(bufferType, buffer);
-    gl.bufferData(bufferType, array, usage);
-    attribute.onUploadCallback();
-    let type = 5126;
-
-    if (array instanceof Float32Array) {
-      type = 5126;
-    } else if (array instanceof Float64Array) {
-      console.warn('THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.');
-    } else if (array instanceof Uint16Array) {
-      if (attribute.isFloat16BufferAttribute) {
-        if (isWebGL2) {
-          type = 5131;
-        } else {
-          console.warn('THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2.');
-        }
-      } else {
-        type = 5123;
-      }
-    } else if (array instanceof Int16Array) {
-      type = 5122;
-    } else if (array instanceof Uint32Array) {
-      type = 5125;
-    } else if (array instanceof Int32Array) {
-      type = 5124;
-    } else if (array instanceof Int8Array) {
-      type = 5120;
-    } else if (array instanceof Uint8Array) {
-      type = 5121;
-    }
-
-    return {
-      buffer: buffer,
-      type: type,
-      bytesPerElement: array.BYTES_PER_ELEMENT,
-      version: attribute.version
-    };
-  }
-
-  function updateBuffer(buffer, attribute, bufferType) {
-    const array = attribute.array;
-    const updateRange = attribute.updateRange;
-    gl.bindBuffer(bufferType, buffer);
-
-    if (updateRange.count === -1) {
-      // Not using update ranges
-      gl.bufferSubData(bufferType, 0, array);
-    } else {
-      if (isWebGL2) {
-        gl.bufferSubData(bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, array, updateRange.offset, updateRange.count);
-      } else {
-        gl.bufferSubData(bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, array.subarray(updateRange.offset, updateRange.offset + updateRange.count));
-      }
-
-      updateRange.count = -1; // reset range
-    }
-  } //
-
-
-  function get(attribute) {
-    if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
-    return buffers.get(attribute);
-  }
-
-  function remove(attribute) {
-    if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
-    const data = buffers.get(attribute);
-
-    if (data) {
-      gl.deleteBuffer(data.buffer);
-      buffers.delete(attribute);
-    }
-  }
-
-  function update(attribute, bufferType) {
-    if (attribute.isGLBufferAttribute) {
-      const cached = buffers.get(attribute);
-
-      if (!cached || cached.version < attribute.version) {
-        buffers.set(attribute, {
-          buffer: attribute.buffer,
-          type: attribute.type,
-          bytesPerElement: attribute.elementSize,
-          version: attribute.version
-        });
-      }
-
-      return;
-    }
-
-    if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
-    const data = buffers.get(attribute);
-
-    if (data === undefined) {
-      buffers.set(attribute, createBuffer(attribute, bufferType));
-    } else if (data.version < attribute.version) {
-      updateBuffer(data.buffer, attribute, bufferType);
-      data.version = attribute.version;
-    }
-  }
-
-  return {
-    get: get,
-    remove: remove,
-    update: update
-  };
-}
-
-class PlaneGeometry extends BufferGeometry {
-  constructor(width = 1, height = 1, widthSegments = 1, heightSegments = 1) {
-    super();
-    this.type = 'PlaneGeometry';
-    this.parameters = {
-      width: width,
-      height: height,
-      widthSegments: widthSegments,
-      heightSegments: heightSegments
-    };
-    const width_half = width / 2;
-    const height_half = height / 2;
-    const gridX = Math.floor(widthSegments);
-    const gridY = Math.floor(heightSegments);
-    const gridX1 = gridX + 1;
-    const gridY1 = gridY + 1;
-    const segment_width = width / gridX;
-    const segment_height = height / gridY; //
-
-    const indices = [];
-    const vertices = [];
-    const normals = [];
-    const uvs = [];
-
-    for (let iy = 0; iy < gridY1; iy++) {
-      const y = iy * segment_height - height_half;
-
-      for (let ix = 0; ix < gridX1; ix++) {
-        const x = ix * segment_width - width_half;
-        vertices.push(x, -y, 0);
-        normals.push(0, 0, 1);
-        uvs.push(ix / gridX);
-        uvs.push(1 - iy / gridY);
-      }
-    }
-
-    for (let iy = 0; iy < gridY; iy++) {
-      for (let ix = 0; ix < gridX; ix++) {
-        const a = ix + gridX1 * iy;
-        const b = ix + gridX1 * (iy + 1);
-        const c = ix + 1 + gridX1 * (iy + 1);
-        const d = ix + 1 + gridX1 * iy;
-        indices.push(a, b, d);
-        indices.push(b, c, d);
-      }
-    }
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
-  }
-
-}
-
-exports.PlaneGeometry = exports.PlaneBufferGeometry = PlaneGeometry;
-var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif";
-var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";
-var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif";
-var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif";
-var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";
-var begin_vertex = "vec3 transformed = vec3( position );";
-var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif";
-var bsdfs = "vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif";
-var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif";
-var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif";
-var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif";
-var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif";
-var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif";
-var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif";
-var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";
-var color_pars_vertex = "#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif";
-var color_vertex = "#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif";
-var common = "#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}";
-var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif";
-var defaultnormal_vertex = "vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif";
-var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif";
-var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif";
-var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif";
-var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif";
-var encodings_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );";
-var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}";
-var envmap_fragment = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif";
-var envmap_common_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif";
-var envmap_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif";
-var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif";
-var envmap_vertex = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif";
-var fog_vertex = "#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif";
-var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif";
-var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif";
-var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif";
-var gradientmap_pars_fragment = "#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}";
-var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif";
-var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";
-var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif";
-var lights_pars_begin = "uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif";
-var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif";
-var lights_toon_fragment = "ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;";
-var lights_toon_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)";
-var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;";
-var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)";
-var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif";
-var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}";
-var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif";
-var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif";
-var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif";
-var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";
-var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif";
-var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif";
-var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif";
-var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif";
-var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif";
-var map_particle_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif";
-var map_particle_pars_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";
-var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif";
-var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";
-var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif";
-var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif";
-var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif";
-var normal_fragment_begin = "float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;";
-var normal_fragment_maps = "#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif";
-var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif";
-var clearcoat_normal_fragment_begin = "#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif";
-var clearcoat_normal_fragment_maps = "#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif";
-var clearcoat_pars_fragment = "#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif";
-var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}";
-var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif";
-var project_vertex = "vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;";
-var dithering_fragment = "#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif";
-var dithering_pars_fragment = "#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif";
-var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif";
-var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";
-var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif";
-var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif";
-var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif";
-var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}";
-var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";
-var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif";
-var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif";
-var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif";
-var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";
-var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";
-var tonemapping_fragment = "#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif";
-var tonemapping_pars_fragment = "#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }";
-var transmissionmap_fragment = "#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif";
-var transmissionmap_pars_fragment = "#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif";
-var uv_pars_fragment = "#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif";
-var uv_pars_vertex = "#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif";
-var uv_vertex = "#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";
-var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";
-var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif";
-var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif";
-var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif";
-var background_frag = "uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
-var background_vert = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}";
-var cube_frag = "#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
-var cube_vert = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}";
-var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}";
-var depth_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}";
-var distanceRGBA_frag = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}";
-var distanceRGBA_vert = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}";
-var equirect_frag = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
-var equirect_vert = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}";
-var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";
-var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
-var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
-var meshbasic_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}";
-var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
-var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
-var meshmatcap_frag = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
-var meshmatcap_vert = "#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}";
-var meshtoon_frag = "#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
-var meshtoon_vert = "#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
-var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
-var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
-var meshphysical_frag = "#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
-var meshphysical_vert = "#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
-var normal_frag = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}";
-var normal_vert = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}";
-var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";
-var points_vert = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}";
-var shadow_frag = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
-var shadow_vert = "#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
-var sprite_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
-var sprite_vert = "uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
-const ShaderChunk = {
-  alphamap_fragment: alphamap_fragment,
-  alphamap_pars_fragment: alphamap_pars_fragment,
-  alphatest_fragment: alphatest_fragment,
-  aomap_fragment: aomap_fragment,
-  aomap_pars_fragment: aomap_pars_fragment,
-  begin_vertex: begin_vertex,
-  beginnormal_vertex: beginnormal_vertex,
-  bsdfs: bsdfs,
-  bumpmap_pars_fragment: bumpmap_pars_fragment,
-  clipping_planes_fragment: clipping_planes_fragment,
-  clipping_planes_pars_fragment: clipping_planes_pars_fragment,
-  clipping_planes_pars_vertex: clipping_planes_pars_vertex,
-  clipping_planes_vertex: clipping_planes_vertex,
-  color_fragment: color_fragment,
-  color_pars_fragment: color_pars_fragment,
-  color_pars_vertex: color_pars_vertex,
-  color_vertex: color_vertex,
-  common: common,
-  cube_uv_reflection_fragment: cube_uv_reflection_fragment,
-  defaultnormal_vertex: defaultnormal_vertex,
-  displacementmap_pars_vertex: displacementmap_pars_vertex,
-  displacementmap_vertex: displacementmap_vertex,
-  emissivemap_fragment: emissivemap_fragment,
-  emissivemap_pars_fragment: emissivemap_pars_fragment,
-  encodings_fragment: encodings_fragment,
-  encodings_pars_fragment: encodings_pars_fragment,
-  envmap_fragment: envmap_fragment,
-  envmap_common_pars_fragment: envmap_common_pars_fragment,
-  envmap_pars_fragment: envmap_pars_fragment,
-  envmap_pars_vertex: envmap_pars_vertex,
-  envmap_physical_pars_fragment: envmap_physical_pars_fragment,
-  envmap_vertex: envmap_vertex,
-  fog_vertex: fog_vertex,
-  fog_pars_vertex: fog_pars_vertex,
-  fog_fragment: fog_fragment,
-  fog_pars_fragment: fog_pars_fragment,
-  gradientmap_pars_fragment: gradientmap_pars_fragment,
-  lightmap_fragment: lightmap_fragment,
-  lightmap_pars_fragment: lightmap_pars_fragment,
-  lights_lambert_vertex: lights_lambert_vertex,
-  lights_pars_begin: lights_pars_begin,
-  lights_toon_fragment: lights_toon_fragment,
-  lights_toon_pars_fragment: lights_toon_pars_fragment,
-  lights_phong_fragment: lights_phong_fragment,
-  lights_phong_pars_fragment: lights_phong_pars_fragment,
-  lights_physical_fragment: lights_physical_fragment,
-  lights_physical_pars_fragment: lights_physical_pars_fragment,
-  lights_fragment_begin: lights_fragment_begin,
-  lights_fragment_maps: lights_fragment_maps,
-  lights_fragment_end: lights_fragment_end,
-  logdepthbuf_fragment: logdepthbuf_fragment,
-  logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
-  logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
-  logdepthbuf_vertex: logdepthbuf_vertex,
-  map_fragment: map_fragment,
-  map_pars_fragment: map_pars_fragment,
-  map_particle_fragment: map_particle_fragment,
-  map_particle_pars_fragment: map_particle_pars_fragment,
-  metalnessmap_fragment: metalnessmap_fragment,
-  metalnessmap_pars_fragment: metalnessmap_pars_fragment,
-  morphnormal_vertex: morphnormal_vertex,
-  morphtarget_pars_vertex: morphtarget_pars_vertex,
-  morphtarget_vertex: morphtarget_vertex,
-  normal_fragment_begin: normal_fragment_begin,
-  normal_fragment_maps: normal_fragment_maps,
-  normalmap_pars_fragment: normalmap_pars_fragment,
-  clearcoat_normal_fragment_begin: clearcoat_normal_fragment_begin,
-  clearcoat_normal_fragment_maps: clearcoat_normal_fragment_maps,
-  clearcoat_pars_fragment: clearcoat_pars_fragment,
-  packing: packing,
-  premultiplied_alpha_fragment: premultiplied_alpha_fragment,
-  project_vertex: project_vertex,
-  dithering_fragment: dithering_fragment,
-  dithering_pars_fragment: dithering_pars_fragment,
-  roughnessmap_fragment: roughnessmap_fragment,
-  roughnessmap_pars_fragment: roughnessmap_pars_fragment,
-  shadowmap_pars_fragment: shadowmap_pars_fragment,
-  shadowmap_pars_vertex: shadowmap_pars_vertex,
-  shadowmap_vertex: shadowmap_vertex,
-  shadowmask_pars_fragment: shadowmask_pars_fragment,
-  skinbase_vertex: skinbase_vertex,
-  skinning_pars_vertex: skinning_pars_vertex,
-  skinning_vertex: skinning_vertex,
-  skinnormal_vertex: skinnormal_vertex,
-  specularmap_fragment: specularmap_fragment,
-  specularmap_pars_fragment: specularmap_pars_fragment,
-  tonemapping_fragment: tonemapping_fragment,
-  tonemapping_pars_fragment: tonemapping_pars_fragment,
-  transmissionmap_fragment: transmissionmap_fragment,
-  transmissionmap_pars_fragment: transmissionmap_pars_fragment,
-  uv_pars_fragment: uv_pars_fragment,
-  uv_pars_vertex: uv_pars_vertex,
-  uv_vertex: uv_vertex,
-  uv2_pars_fragment: uv2_pars_fragment,
-  uv2_pars_vertex: uv2_pars_vertex,
-  uv2_vertex: uv2_vertex,
-  worldpos_vertex: worldpos_vertex,
-  background_frag: background_frag,
-  background_vert: background_vert,
-  cube_frag: cube_frag,
-  cube_vert: cube_vert,
-  depth_frag: depth_frag,
-  depth_vert: depth_vert,
-  distanceRGBA_frag: distanceRGBA_frag,
-  distanceRGBA_vert: distanceRGBA_vert,
-  equirect_frag: equirect_frag,
-  equirect_vert: equirect_vert,
-  linedashed_frag: linedashed_frag,
-  linedashed_vert: linedashed_vert,
-  meshbasic_frag: meshbasic_frag,
-  meshbasic_vert: meshbasic_vert,
-  meshlambert_frag: meshlambert_frag,
-  meshlambert_vert: meshlambert_vert,
-  meshmatcap_frag: meshmatcap_frag,
-  meshmatcap_vert: meshmatcap_vert,
-  meshtoon_frag: meshtoon_frag,
-  meshtoon_vert: meshtoon_vert,
-  meshphong_frag: meshphong_frag,
-  meshphong_vert: meshphong_vert,
-  meshphysical_frag: meshphysical_frag,
-  meshphysical_vert: meshphysical_vert,
-  normal_frag: normal_frag,
-  normal_vert: normal_vert,
-  points_frag: points_frag,
-  points_vert: points_vert,
-  shadow_frag: shadow_frag,
-  shadow_vert: shadow_vert,
-  sprite_frag: sprite_frag,
-  sprite_vert: sprite_vert
-};
-/**
- * Uniforms library for shared webgl shaders
- */
-
-exports.ShaderChunk = ShaderChunk;
-const UniformsLib = {
-  common: {
-    diffuse: {
-      value: new Color(0xeeeeee)
-    },
-    opacity: {
-      value: 1.0
-    },
-    map: {
-      value: null
-    },
-    uvTransform: {
-      value: new Matrix3()
-    },
-    uv2Transform: {
-      value: new Matrix3()
-    },
-    alphaMap: {
-      value: null
-    }
-  },
-  specularmap: {
-    specularMap: {
-      value: null
-    }
-  },
-  envmap: {
-    envMap: {
-      value: null
-    },
-    flipEnvMap: {
-      value: -1
-    },
-    reflectivity: {
-      value: 1.0
-    },
-    refractionRatio: {
-      value: 0.98
-    },
-    maxMipLevel: {
-      value: 0
-    }
-  },
-  aomap: {
-    aoMap: {
-      value: null
-    },
-    aoMapIntensity: {
-      value: 1
-    }
-  },
-  lightmap: {
-    lightMap: {
-      value: null
-    },
-    lightMapIntensity: {
-      value: 1
-    }
-  },
-  emissivemap: {
-    emissiveMap: {
-      value: null
-    }
-  },
-  bumpmap: {
-    bumpMap: {
-      value: null
-    },
-    bumpScale: {
-      value: 1
-    }
-  },
-  normalmap: {
-    normalMap: {
-      value: null
-    },
-    normalScale: {
-      value: new Vector2(1, 1)
-    }
-  },
-  displacementmap: {
-    displacementMap: {
-      value: null
-    },
-    displacementScale: {
-      value: 1
-    },
-    displacementBias: {
-      value: 0
-    }
-  },
-  roughnessmap: {
-    roughnessMap: {
-      value: null
-    }
-  },
-  metalnessmap: {
-    metalnessMap: {
-      value: null
-    }
-  },
-  gradientmap: {
-    gradientMap: {
-      value: null
-    }
-  },
-  fog: {
-    fogDensity: {
-      value: 0.00025
-    },
-    fogNear: {
-      value: 1
-    },
-    fogFar: {
-      value: 2000
-    },
-    fogColor: {
-      value: new Color(0xffffff)
-    }
-  },
-  lights: {
-    ambientLightColor: {
-      value: []
-    },
-    lightProbe: {
-      value: []
-    },
-    directionalLights: {
-      value: [],
-      properties: {
-        direction: {},
-        color: {}
-      }
-    },
-    directionalLightShadows: {
-      value: [],
-      properties: {
-        shadowBias: {},
-        shadowNormalBias: {},
-        shadowRadius: {},
-        shadowMapSize: {}
-      }
-    },
-    directionalShadowMap: {
-      value: []
-    },
-    directionalShadowMatrix: {
-      value: []
-    },
-    spotLights: {
-      value: [],
-      properties: {
-        color: {},
-        position: {},
-        direction: {},
-        distance: {},
-        coneCos: {},
-        penumbraCos: {},
-        decay: {}
-      }
-    },
-    spotLightShadows: {
-      value: [],
-      properties: {
-        shadowBias: {},
-        shadowNormalBias: {},
-        shadowRadius: {},
-        shadowMapSize: {}
-      }
-    },
-    spotShadowMap: {
-      value: []
-    },
-    spotShadowMatrix: {
-      value: []
-    },
-    pointLights: {
-      value: [],
-      properties: {
-        color: {},
-        position: {},
-        decay: {},
-        distance: {}
-      }
-    },
-    pointLightShadows: {
-      value: [],
-      properties: {
-        shadowBias: {},
-        shadowNormalBias: {},
-        shadowRadius: {},
-        shadowMapSize: {},
-        shadowCameraNear: {},
-        shadowCameraFar: {}
-      }
-    },
-    pointShadowMap: {
-      value: []
-    },
-    pointShadowMatrix: {
-      value: []
-    },
-    hemisphereLights: {
-      value: [],
-      properties: {
-        direction: {},
-        skyColor: {},
-        groundColor: {}
-      }
-    },
-    // TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
-    rectAreaLights: {
-      value: [],
-      properties: {
-        color: {},
-        position: {},
-        width: {},
-        height: {}
-      }
-    },
-    ltc_1: {
-      value: null
-    },
-    ltc_2: {
-      value: null
-    }
-  },
-  points: {
-    diffuse: {
-      value: new Color(0xeeeeee)
-    },
-    opacity: {
-      value: 1.0
-    },
-    size: {
-      value: 1.0
-    },
-    scale: {
-      value: 1.0
-    },
-    map: {
-      value: null
-    },
-    alphaMap: {
-      value: null
-    },
-    uvTransform: {
-      value: new Matrix3()
-    }
-  },
-  sprite: {
-    diffuse: {
-      value: new Color(0xeeeeee)
-    },
-    opacity: {
-      value: 1.0
-    },
-    center: {
-      value: new Vector2(0.5, 0.5)
-    },
-    rotation: {
-      value: 0.0
-    },
-    map: {
-      value: null
-    },
-    alphaMap: {
-      value: null
-    },
-    uvTransform: {
-      value: new Matrix3()
-    }
-  }
-};
-exports.UniformsLib = UniformsLib;
-const ShaderLib = {
-  basic: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.specularmap, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.fog]),
-    vertexShader: ShaderChunk.meshbasic_vert,
-    fragmentShader: ShaderChunk.meshbasic_frag
-  },
-  lambert: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.specularmap, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.fog, UniformsLib.lights, {
-      emissive: {
-        value: new Color(0x000000)
-      }
-    }]),
-    vertexShader: ShaderChunk.meshlambert_vert,
-    fragmentShader: ShaderChunk.meshlambert_frag
-  },
-  phong: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.specularmap, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.fog, UniformsLib.lights, {
-      emissive: {
-        value: new Color(0x000000)
-      },
-      specular: {
-        value: new Color(0x111111)
-      },
-      shininess: {
-        value: 30
-      }
-    }]),
-    vertexShader: ShaderChunk.meshphong_vert,
-    fragmentShader: ShaderChunk.meshphong_frag
-  },
-  standard: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.roughnessmap, UniformsLib.metalnessmap, UniformsLib.fog, UniformsLib.lights, {
-      emissive: {
-        value: new Color(0x000000)
-      },
-      roughness: {
-        value: 1.0
-      },
-      metalness: {
-        value: 0.0
-      },
-      envMapIntensity: {
-        value: 1
-      } // temporary
-
-    }]),
-    vertexShader: ShaderChunk.meshphysical_vert,
-    fragmentShader: ShaderChunk.meshphysical_frag
-  },
-  toon: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.gradientmap, UniformsLib.fog, UniformsLib.lights, {
-      emissive: {
-        value: new Color(0x000000)
-      }
-    }]),
-    vertexShader: ShaderChunk.meshtoon_vert,
-    fragmentShader: ShaderChunk.meshtoon_frag
-  },
-  matcap: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.fog, {
-      matcap: {
-        value: null
-      }
-    }]),
-    vertexShader: ShaderChunk.meshmatcap_vert,
-    fragmentShader: ShaderChunk.meshmatcap_frag
-  },
-  points: {
-    uniforms: mergeUniforms([UniformsLib.points, UniformsLib.fog]),
-    vertexShader: ShaderChunk.points_vert,
-    fragmentShader: ShaderChunk.points_frag
-  },
-  dashed: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.fog, {
-      scale: {
-        value: 1
-      },
-      dashSize: {
-        value: 1
-      },
-      totalSize: {
-        value: 2
-      }
-    }]),
-    vertexShader: ShaderChunk.linedashed_vert,
-    fragmentShader: ShaderChunk.linedashed_frag
-  },
-  depth: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.displacementmap]),
-    vertexShader: ShaderChunk.depth_vert,
-    fragmentShader: ShaderChunk.depth_frag
-  },
-  normal: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, {
-      opacity: {
-        value: 1.0
-      }
-    }]),
-    vertexShader: ShaderChunk.normal_vert,
-    fragmentShader: ShaderChunk.normal_frag
-  },
-  sprite: {
-    uniforms: mergeUniforms([UniformsLib.sprite, UniformsLib.fog]),
-    vertexShader: ShaderChunk.sprite_vert,
-    fragmentShader: ShaderChunk.sprite_frag
-  },
-  background: {
-    uniforms: {
-      uvTransform: {
-        value: new Matrix3()
-      },
-      t2D: {
-        value: null
-      }
-    },
-    vertexShader: ShaderChunk.background_vert,
-    fragmentShader: ShaderChunk.background_frag
-  },
-
-  /* -------------------------------------------------------------------------
-  //	Cube map shader
-   ------------------------------------------------------------------------- */
-  cube: {
-    uniforms: mergeUniforms([UniformsLib.envmap, {
-      opacity: {
-        value: 1.0
-      }
-    }]),
-    vertexShader: ShaderChunk.cube_vert,
-    fragmentShader: ShaderChunk.cube_frag
-  },
-  equirect: {
-    uniforms: {
-      tEquirect: {
-        value: null
-      }
-    },
-    vertexShader: ShaderChunk.equirect_vert,
-    fragmentShader: ShaderChunk.equirect_frag
-  },
-  distanceRGBA: {
-    uniforms: mergeUniforms([UniformsLib.common, UniformsLib.displacementmap, {
-      referencePosition: {
-        value: new Vector3()
-      },
-      nearDistance: {
-        value: 1
-      },
-      farDistance: {
-        value: 1000
-      }
-    }]),
-    vertexShader: ShaderChunk.distanceRGBA_vert,
-    fragmentShader: ShaderChunk.distanceRGBA_frag
-  },
-  shadow: {
-    uniforms: mergeUniforms([UniformsLib.lights, UniformsLib.fog, {
-      color: {
-        value: new Color(0x00000)
-      },
-      opacity: {
-        value: 1.0
-      }
-    }]),
-    vertexShader: ShaderChunk.shadow_vert,
-    fragmentShader: ShaderChunk.shadow_frag
-  }
-};
-exports.ShaderLib = ShaderLib;
-ShaderLib.physical = {
-  uniforms: mergeUniforms([ShaderLib.standard.uniforms, {
-    clearcoat: {
-      value: 0
-    },
-    clearcoatMap: {
-      value: null
-    },
-    clearcoatRoughness: {
-      value: 0
-    },
-    clearcoatRoughnessMap: {
-      value: null
-    },
-    clearcoatNormalScale: {
-      value: new Vector2(1, 1)
-    },
-    clearcoatNormalMap: {
-      value: null
-    },
-    sheen: {
-      value: new Color(0x000000)
-    },
-    transmission: {
-      value: 0
-    },
-    transmissionMap: {
-      value: null
-    }
-  }]),
-  vertexShader: ShaderChunk.meshphysical_vert,
-  fragmentShader: ShaderChunk.meshphysical_frag
-};
-
-function WebGLBackground(renderer, cubemaps, state, objects, premultipliedAlpha) {
-  const clearColor = new Color(0x000000);
-  let clearAlpha = 0;
-  let planeMesh;
-  let boxMesh;
-  let currentBackground = null;
-  let currentBackgroundVersion = 0;
-  let currentTonemapping = null;
-
-  function render(renderList, scene, camera, forceClear) {
-    let background = scene.isScene === true ? scene.background : null;
-
-    if (background && background.isTexture) {
-      background = cubemaps.get(background);
-    } // Ignore background in AR
-    // TODO: Reconsider this.
-
-
-    const xr = renderer.xr;
-    const session = xr.getSession && xr.getSession();
-
-    if (session && session.environmentBlendMode === 'additive') {
-      background = null;
-    }
-
-    if (background === null) {
-      setClear(clearColor, clearAlpha);
-    } else if (background && background.isColor) {
-      setClear(background, 1);
-      forceClear = true;
-    }
-
-    if (renderer.autoClear || forceClear) {
-      renderer.clear(renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil);
-    }
-
-    if (background && (background.isCubeTexture || background.isWebGLCubeRenderTarget || background.mapping === CubeUVReflectionMapping)) {
-      if (boxMesh === undefined) {
-        boxMesh = new Mesh(new BoxGeometry(1, 1, 1), new ShaderMaterial({
-          name: 'BackgroundCubeMaterial',
-          uniforms: cloneUniforms(ShaderLib.cube.uniforms),
-          vertexShader: ShaderLib.cube.vertexShader,
-          fragmentShader: ShaderLib.cube.fragmentShader,
-          side: BackSide,
-          depthTest: false,
-          depthWrite: false,
-          fog: false
-        }));
-        boxMesh.geometry.deleteAttribute('normal');
-        boxMesh.geometry.deleteAttribute('uv');
-
-        boxMesh.onBeforeRender = function (renderer, scene, camera) {
-          this.matrixWorld.copyPosition(camera.matrixWorld);
-        }; // enable code injection for non-built-in material
-
-
-        Object.defineProperty(boxMesh.material, 'envMap', {
-          get: function () {
-            return this.uniforms.envMap.value;
-          }
-        });
-        objects.update(boxMesh);
-      }
-
-      if (background.isWebGLCubeRenderTarget) {
-        // TODO Deprecate
-        background = background.texture;
-      }
-
-      boxMesh.material.uniforms.envMap.value = background;
-      boxMesh.material.uniforms.flipEnvMap.value = background.isCubeTexture && background._needsFlipEnvMap ? -1 : 1;
-
-      if (currentBackground !== background || currentBackgroundVersion !== background.version || currentTonemapping !== renderer.toneMapping) {
-        boxMesh.material.needsUpdate = true;
-        currentBackground = background;
-        currentBackgroundVersion = background.version;
-        currentTonemapping = renderer.toneMapping;
-      } // push to the pre-sorted opaque render list
-
-
-      renderList.unshift(boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null);
-    } else if (background && background.isTexture) {
-      if (planeMesh === undefined) {
-        planeMesh = new Mesh(new PlaneGeometry(2, 2), new ShaderMaterial({
-          name: 'BackgroundMaterial',
-          uniforms: cloneUniforms(ShaderLib.background.uniforms),
-          vertexShader: ShaderLib.background.vertexShader,
-          fragmentShader: ShaderLib.background.fragmentShader,
-          side: FrontSide,
-          depthTest: false,
-          depthWrite: false,
-          fog: false
-        }));
-        planeMesh.geometry.deleteAttribute('normal'); // enable code injection for non-built-in material
-
-        Object.defineProperty(planeMesh.material, 'map', {
-          get: function () {
-            return this.uniforms.t2D.value;
-          }
-        });
-        objects.update(planeMesh);
-      }
-
-      planeMesh.material.uniforms.t2D.value = background;
-
-      if (background.matrixAutoUpdate === true) {
-        background.updateMatrix();
-      }
-
-      planeMesh.material.uniforms.uvTransform.value.copy(background.matrix);
-
-      if (currentBackground !== background || currentBackgroundVersion !== background.version || currentTonemapping !== renderer.toneMapping) {
-        planeMesh.material.needsUpdate = true;
-        currentBackground = background;
-        currentBackgroundVersion = background.version;
-        currentTonemapping = renderer.toneMapping;
-      } // push to the pre-sorted opaque render list
-
-
-      renderList.unshift(planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null);
-    }
-  }
-
-  function setClear(color, alpha) {
-    state.buffers.color.setClear(color.r, color.g, color.b, alpha, premultipliedAlpha);
-  }
-
-  return {
-    getClearColor: function () {
-      return clearColor;
-    },
-    setClearColor: function (color, alpha = 1) {
-      clearColor.set(color);
-      clearAlpha = alpha;
-      setClear(clearColor, clearAlpha);
-    },
-    getClearAlpha: function () {
-      return clearAlpha;
-    },
-    setClearAlpha: function (alpha) {
-      clearAlpha = alpha;
-      setClear(clearColor, clearAlpha);
-    },
-    render: render
-  };
-}
-
-function WebGLBindingStates(gl, extensions, attributes, capabilities) {
-  const maxVertexAttributes = gl.getParameter(34921);
-  const extension = capabilities.isWebGL2 ? null : extensions.get('OES_vertex_array_object');
-  const vaoAvailable = capabilities.isWebGL2 || extension !== null;
-  const bindingStates = {};
-  const defaultState = createBindingState(null);
-  let currentState = defaultState;
-
-  function setup(object, material, program, geometry, index) {
-    let updateBuffers = false;
-
-    if (vaoAvailable) {
-      const state = getBindingState(geometry, program, material);
-
-      if (currentState !== state) {
-        currentState = state;
-        bindVertexArrayObject(currentState.object);
-      }
-
-      updateBuffers = needsUpdate(geometry, index);
-      if (updateBuffers) saveCache(geometry, index);
-    } else {
-      const wireframe = material.wireframe === true;
-
-      if (currentState.geometry !== geometry.id || currentState.program !== program.id || currentState.wireframe !== wireframe) {
-        currentState.geometry = geometry.id;
-        currentState.program = program.id;
-        currentState.wireframe = wireframe;
-        updateBuffers = true;
-      }
-    }
-
-    if (object.isInstancedMesh === true) {
-      updateBuffers = true;
-    }
-
-    if (index !== null) {
-      attributes.update(index, 34963);
-    }
-
-    if (updateBuffers) {
-      setupVertexAttributes(object, material, program, geometry);
-
-      if (index !== null) {
-        gl.bindBuffer(34963, attributes.get(index).buffer);
-      }
-    }
-  }
-
-  function createVertexArrayObject() {
-    if (capabilities.isWebGL2) return gl.createVertexArray();
-    return extension.createVertexArrayOES();
-  }
-
-  function bindVertexArrayObject(vao) {
-    if (capabilities.isWebGL2) return gl.bindVertexArray(vao);
-    return extension.bindVertexArrayOES(vao);
-  }
-
-  function deleteVertexArrayObject(vao) {
-    if (capabilities.isWebGL2) return gl.deleteVertexArray(vao);
-    return extension.deleteVertexArrayOES(vao);
-  }
-
-  function getBindingState(geometry, program, material) {
-    const wireframe = material.wireframe === true;
-    let programMap = bindingStates[geometry.id];
-
-    if (programMap === undefined) {
-      programMap = {};
-      bindingStates[geometry.id] = programMap;
-    }
-
-    let stateMap = programMap[program.id];
-
-    if (stateMap === undefined) {
-      stateMap = {};
-      programMap[program.id] = stateMap;
-    }
-
-    let state = stateMap[wireframe];
-
-    if (state === undefined) {
-      state = createBindingState(createVertexArrayObject());
-      stateMap[wireframe] = state;
-    }
-
-    return state;
-  }
-
-  function createBindingState(vao) {
-    const newAttributes = [];
-    const enabledAttributes = [];
-    const attributeDivisors = [];
-
-    for (let i = 0; i < maxVertexAttributes; i++) {
-      newAttributes[i] = 0;
-      enabledAttributes[i] = 0;
-      attributeDivisors[i] = 0;
-    }
-
-    return {
-      // for backward compatibility on non-VAO support browser
-      geometry: null,
-      program: null,
-      wireframe: false,
-      newAttributes: newAttributes,
-      enabledAttributes: enabledAttributes,
-      attributeDivisors: attributeDivisors,
-      object: vao,
-      attributes: {},
-      index: null
-    };
-  }
-
-  function needsUpdate(geometry, index) {
-    const cachedAttributes = currentState.attributes;
-    const geometryAttributes = geometry.attributes;
-    let attributesNum = 0;
-
-    for (const key in geometryAttributes) {
-      const cachedAttribute = cachedAttributes[key];
-      const geometryAttribute = geometryAttributes[key];
-      if (cachedAttribute === undefined) return true;
-      if (cachedAttribute.attribute !== geometryAttribute) return true;
-      if (cachedAttribute.data !== geometryAttribute.data) return true;
-      attributesNum++;
-    }
-
-    if (currentState.attributesNum !== attributesNum) return true;
-    if (currentState.index !== index) return true;
-    return false;
-  }
-
-  function saveCache(geometry, index) {
-    const cache = {};
-    const attributes = geometry.attributes;
-    let attributesNum = 0;
-
-    for (const key in attributes) {
-      const attribute = attributes[key];
-      const data = {};
-      data.attribute = attribute;
-
-      if (attribute.data) {
-        data.data = attribute.data;
-      }
-
-      cache[key] = data;
-      attributesNum++;
-    }
-
-    currentState.attributes = cache;
-    currentState.attributesNum = attributesNum;
-    currentState.index = index;
-  }
-
-  function initAttributes() {
-    const newAttributes = currentState.newAttributes;
-
-    for (let i = 0, il = newAttributes.length; i < il; i++) {
-      newAttributes[i] = 0;
-    }
-  }
-
-  function enableAttribute(attribute) {
-    enableAttributeAndDivisor(attribute, 0);
-  }
-
-  function enableAttributeAndDivisor(attribute, meshPerAttribute) {
-    const newAttributes = currentState.newAttributes;
-    const enabledAttributes = currentState.enabledAttributes;
-    const attributeDivisors = currentState.attributeDivisors;
-    newAttributes[attribute] = 1;
-
-    if (enabledAttributes[attribute] === 0) {
-      gl.enableVertexAttribArray(attribute);
-      enabledAttributes[attribute] = 1;
-    }
-
-    if (attributeDivisors[attribute] !== meshPerAttribute) {
-      const extension = capabilities.isWebGL2 ? gl : extensions.get('ANGLE_instanced_arrays');
-      extension[capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE'](attribute, meshPerAttribute);
-      attributeDivisors[attribute] = meshPerAttribute;
-    }
-  }
-
-  function disableUnusedAttributes() {
-    const newAttributes = currentState.newAttributes;
-    const enabledAttributes = currentState.enabledAttributes;
-
-    for (let i = 0, il = enabledAttributes.length; i < il; i++) {
-      if (enabledAttributes[i] !== newAttributes[i]) {
-        gl.disableVertexAttribArray(i);
-        enabledAttributes[i] = 0;
-      }
-    }
-  }
-
-  function vertexAttribPointer(index, size, type, normalized, stride, offset) {
-    if (capabilities.isWebGL2 === true && (type === 5124 || type === 5125)) {
-      gl.vertexAttribIPointer(index, size, type, stride, offset);
-    } else {
-      gl.vertexAttribPointer(index, size, type, normalized, stride, offset);
-    }
-  }
-
-  function setupVertexAttributes(object, material, program, geometry) {
-    if (capabilities.isWebGL2 === false && (object.isInstancedMesh || geometry.isInstancedBufferGeometry)) {
-      if (extensions.get('ANGLE_instanced_arrays') === null) return;
-    }
-
-    initAttributes();
-    const geometryAttributes = geometry.attributes;
-    const programAttributes = program.getAttributes();
-    const materialDefaultAttributeValues = material.defaultAttributeValues;
-
-    for (const name in programAttributes) {
-      const programAttribute = programAttributes[name];
-
-      if (programAttribute >= 0) {
-        const geometryAttribute = geometryAttributes[name];
-
-        if (geometryAttribute !== undefined) {
-          const normalized = geometryAttribute.normalized;
-          const size = geometryAttribute.itemSize;
-          const attribute = attributes.get(geometryAttribute); // TODO Attribute may not be available on context restore
-
-          if (attribute === undefined) continue;
-          const buffer = attribute.buffer;
-          const type = attribute.type;
-          const bytesPerElement = attribute.bytesPerElement;
-
-          if (geometryAttribute.isInterleavedBufferAttribute) {
-            const data = geometryAttribute.data;
-            const stride = data.stride;
-            const offset = geometryAttribute.offset;
-
-            if (data && data.isInstancedInterleavedBuffer) {
-              enableAttributeAndDivisor(programAttribute, data.meshPerAttribute);
-
-              if (geometry._maxInstanceCount === undefined) {
-                geometry._maxInstanceCount = data.meshPerAttribute * data.count;
-              }
-            } else {
-              enableAttribute(programAttribute);
-            }
-
-            gl.bindBuffer(34962, buffer);
-            vertexAttribPointer(programAttribute, size, type, normalized, stride * bytesPerElement, offset * bytesPerElement);
-          } else {
-            if (geometryAttribute.isInstancedBufferAttribute) {
-              enableAttributeAndDivisor(programAttribute, geometryAttribute.meshPerAttribute);
-
-              if (geometry._maxInstanceCount === undefined) {
-                geometry._maxInstanceCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;
-              }
-            } else {
-              enableAttribute(programAttribute);
-            }
-
-            gl.bindBuffer(34962, buffer);
-            vertexAttribPointer(programAttribute, size, type, normalized, 0, 0);
-          }
-        } else if (name === 'instanceMatrix') {
-          const attribute = attributes.get(object.instanceMatrix); // TODO Attribute may not be available on context restore
-
-          if (attribute === undefined) continue;
-          const buffer = attribute.buffer;
-          const type = attribute.type;
-          enableAttributeAndDivisor(programAttribute + 0, 1);
-          enableAttributeAndDivisor(programAttribute + 1, 1);
-          enableAttributeAndDivisor(programAttribute + 2, 1);
-          enableAttributeAndDivisor(programAttribute + 3, 1);
-          gl.bindBuffer(34962, buffer);
-          gl.vertexAttribPointer(programAttribute + 0, 4, type, false, 64, 0);
-          gl.vertexAttribPointer(programAttribute + 1, 4, type, false, 64, 16);
-          gl.vertexAttribPointer(programAttribute + 2, 4, type, false, 64, 32);
-          gl.vertexAttribPointer(programAttribute + 3, 4, type, false, 64, 48);
-        } else if (name === 'instanceColor') {
-          const attribute = attributes.get(object.instanceColor); // TODO Attribute may not be available on context restore
-
-          if (attribute === undefined) continue;
-          const buffer = attribute.buffer;
-          const type = attribute.type;
-          enableAttributeAndDivisor(programAttribute, 1);
-          gl.bindBuffer(34962, buffer);
-          gl.vertexAttribPointer(programAttribute, 3, type, false, 12, 0);
-        } else if (materialDefaultAttributeValues !== undefined) {
-          const value = materialDefaultAttributeValues[name];
-
-          if (value !== undefined) {
-            switch (value.length) {
-              case 2:
-                gl.vertexAttrib2fv(programAttribute, value);
-                break;
-
-              case 3:
-                gl.vertexAttrib3fv(programAttribute, value);
-                break;
-
-              case 4:
-                gl.vertexAttrib4fv(programAttribute, value);
-                break;
-
-              default:
-                gl.vertexAttrib1fv(programAttribute, value);
-            }
-          }
-        }
-      }
-    }
-
-    disableUnusedAttributes();
-  }
-
-  function dispose() {
-    reset();
-
-    for (const geometryId in bindingStates) {
-      const programMap = bindingStates[geometryId];
-
-      for (const programId in programMap) {
-        const stateMap = programMap[programId];
-
-        for (const wireframe in stateMap) {
-          deleteVertexArrayObject(stateMap[wireframe].object);
-          delete stateMap[wireframe];
-        }
-
-        delete programMap[programId];
-      }
-
-      delete bindingStates[geometryId];
-    }
-  }
-
-  function releaseStatesOfGeometry(geometry) {
-    if (bindingStates[geometry.id] === undefined) return;
-    const programMap = bindingStates[geometry.id];
-
-    for (const programId in programMap) {
-      const stateMap = programMap[programId];
-
-      for (const wireframe in stateMap) {
-        deleteVertexArrayObject(stateMap[wireframe].object);
-        delete stateMap[wireframe];
-      }
-
-      delete programMap[programId];
-    }
-
-    delete bindingStates[geometry.id];
-  }
-
-  function releaseStatesOfProgram(program) {
-    for (const geometryId in bindingStates) {
-      const programMap = bindingStates[geometryId];
-      if (programMap[program.id] === undefined) continue;
-      const stateMap = programMap[program.id];
-
-      for (const wireframe in stateMap) {
-        deleteVertexArrayObject(stateMap[wireframe].object);
-        delete stateMap[wireframe];
-      }
-
-      delete programMap[program.id];
-    }
-  }
-
-  function reset() {
-    resetDefaultState();
-    if (currentState === defaultState) return;
-    currentState = defaultState;
-    bindVertexArrayObject(currentState.object);
-  } // for backward-compatilibity
-
-
-  function resetDefaultState() {
-    defaultState.geometry = null;
-    defaultState.program = null;
-    defaultState.wireframe = false;
-  }
-
-  return {
-    setup: setup,
-    reset: reset,
-    resetDefaultState: resetDefaultState,
-    dispose: dispose,
-    releaseStatesOfGeometry: releaseStatesOfGeometry,
-    releaseStatesOfProgram: releaseStatesOfProgram,
-    initAttributes: initAttributes,
-    enableAttribute: enableAttribute,
-    disableUnusedAttributes: disableUnusedAttributes
-  };
-}
-
-function WebGLBufferRenderer(gl, extensions, info, capabilities) {
-  const isWebGL2 = capabilities.isWebGL2;
-  let mode;
-
-  function setMode(value) {
-    mode = value;
-  }
-
-  function render(start, count) {
-    gl.drawArrays(mode, start, count);
-    info.update(count, mode, 1);
-  }
-
-  function renderInstances(start, count, primcount) {
-    if (primcount === 0) return;
-    let extension, methodName;
-
-    if (isWebGL2) {
-      extension = gl;
-      methodName = 'drawArraysInstanced';
-    } else {
-      extension = extensions.get('ANGLE_instanced_arrays');
-      methodName = 'drawArraysInstancedANGLE';
-
-      if (extension === null) {
-        console.error('THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.');
-        return;
-      }
-    }
-
-    extension[methodName](mode, start, count, primcount);
-    info.update(count, mode, primcount);
-  } //
-
-
-  this.setMode = setMode;
-  this.render = render;
-  this.renderInstances = renderInstances;
-}
-
-function WebGLCapabilities(gl, extensions, parameters) {
-  let maxAnisotropy;
-
-  function getMaxAnisotropy() {
-    if (maxAnisotropy !== undefined) return maxAnisotropy;
-
-    if (extensions.has('EXT_texture_filter_anisotropic') === true) {
-      const extension = extensions.get('EXT_texture_filter_anisotropic');
-      maxAnisotropy = gl.getParameter(extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT);
-    } else {
-      maxAnisotropy = 0;
-    }
-
-    return maxAnisotropy;
-  }
-
-  function getMaxPrecision(precision) {
-    if (precision === 'highp') {
-      if (gl.getShaderPrecisionFormat(35633, 36338).precision > 0 && gl.getShaderPrecisionFormat(35632, 36338).precision > 0) {
-        return 'highp';
-      }
-
-      precision = 'mediump';
-    }
-
-    if (precision === 'mediump') {
-      if (gl.getShaderPrecisionFormat(35633, 36337).precision > 0 && gl.getShaderPrecisionFormat(35632, 36337).precision > 0) {
-        return 'mediump';
-      }
-    }
-
-    return 'lowp';
-  }
-  /* eslint-disable no-undef */
-
-
-  const isWebGL2 = typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext || typeof WebGL2ComputeRenderingContext !== 'undefined' && gl instanceof WebGL2ComputeRenderingContext;
-  /* eslint-enable no-undef */
-
-  let precision = parameters.precision !== undefined ? parameters.precision : 'highp';
-  const maxPrecision = getMaxPrecision(precision);
-
-  if (maxPrecision !== precision) {
-    console.warn('THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.');
-    precision = maxPrecision;
-  }
-
-  const logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;
-  const maxTextures = gl.getParameter(34930);
-  const maxVertexTextures = gl.getParameter(35660);
-  const maxTextureSize = gl.getParameter(3379);
-  const maxCubemapSize = gl.getParameter(34076);
-  const maxAttributes = gl.getParameter(34921);
-  const maxVertexUniforms = gl.getParameter(36347);
-  const maxVaryings = gl.getParameter(36348);
-  const maxFragmentUniforms = gl.getParameter(36349);
-  const vertexTextures = maxVertexTextures > 0;
-  const floatFragmentTextures = isWebGL2 || extensions.has('OES_texture_float');
-  const floatVertexTextures = vertexTextures && floatFragmentTextures;
-  const maxSamples = isWebGL2 ? gl.getParameter(36183) : 0;
-  return {
-    isWebGL2: isWebGL2,
-    getMaxAnisotropy: getMaxAnisotropy,
-    getMaxPrecision: getMaxPrecision,
-    precision: precision,
-    logarithmicDepthBuffer: logarithmicDepthBuffer,
-    maxTextures: maxTextures,
-    maxVertexTextures: maxVertexTextures,
-    maxTextureSize: maxTextureSize,
-    maxCubemapSize: maxCubemapSize,
-    maxAttributes: maxAttributes,
-    maxVertexUniforms: maxVertexUniforms,
-    maxVaryings: maxVaryings,
-    maxFragmentUniforms: maxFragmentUniforms,
-    vertexTextures: vertexTextures,
-    floatFragmentTextures: floatFragmentTextures,
-    floatVertexTextures: floatVertexTextures,
-    maxSamples: maxSamples
-  };
-}
-
-function WebGLClipping(properties) {
-  const scope = this;
-  let globalState = null,
-      numGlobalPlanes = 0,
-      localClippingEnabled = false,
-      renderingShadows = false;
-  const plane = new Plane(),
-        viewNormalMatrix = new Matrix3(),
-        uniform = {
-    value: null,
-    needsUpdate: false
-  };
-  this.uniform = uniform;
-  this.numPlanes = 0;
-  this.numIntersection = 0;
-
-  this.init = function (planes, enableLocalClipping, camera) {
-    const enabled = planes.length !== 0 || enableLocalClipping || // enable state of previous frame - the clipping code has to
-    // run another frame in order to reset the state:
-    numGlobalPlanes !== 0 || localClippingEnabled;
-    localClippingEnabled = enableLocalClipping;
-    globalState = projectPlanes(planes, camera, 0);
-    numGlobalPlanes = planes.length;
-    return enabled;
-  };
-
-  this.beginShadows = function () {
-    renderingShadows = true;
-    projectPlanes(null);
-  };
-
-  this.endShadows = function () {
-    renderingShadows = false;
-    resetGlobalState();
-  };
-
-  this.setState = function (material, camera, useCache) {
-    const planes = material.clippingPlanes,
-          clipIntersection = material.clipIntersection,
-          clipShadows = material.clipShadows;
-    const materialProperties = properties.get(material);
-
-    if (!localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && !clipShadows) {
-      // there's no local clipping
-      if (renderingShadows) {
-        // there's no global clipping
-        projectPlanes(null);
-      } else {
-        resetGlobalState();
-      }
-    } else {
-      const nGlobal = renderingShadows ? 0 : numGlobalPlanes,
-            lGlobal = nGlobal * 4;
-      let dstArray = materialProperties.clippingState || null;
-      uniform.value = dstArray; // ensure unique state
-
-      dstArray = projectPlanes(planes, camera, lGlobal, useCache);
-
-      for (let i = 0; i !== lGlobal; ++i) {
-        dstArray[i] = globalState[i];
-      }
-
-      materialProperties.clippingState = dstArray;
-      this.numIntersection = clipIntersection ? this.numPlanes : 0;
-      this.numPlanes += nGlobal;
-    }
-  };
-
-  function resetGlobalState() {
-    if (uniform.value !== globalState) {
-      uniform.value = globalState;
-      uniform.needsUpdate = numGlobalPlanes > 0;
-    }
-
-    scope.numPlanes = numGlobalPlanes;
-    scope.numIntersection = 0;
-  }
-
-  function projectPlanes(planes, camera, dstOffset, skipTransform) {
-    const nPlanes = planes !== null ? planes.length : 0;
-    let dstArray = null;
-
-    if (nPlanes !== 0) {
-      dstArray = uniform.value;
-
-      if (skipTransform !== true || dstArray === null) {
-        const flatSize = dstOffset + nPlanes * 4,
-              viewMatrix = camera.matrixWorldInverse;
-        viewNormalMatrix.getNormalMatrix(viewMatrix);
-
-        if (dstArray === null || dstArray.length < flatSize) {
-          dstArray = new Float32Array(flatSize);
-        }
-
-        for (let i = 0, i4 = dstOffset; i !== nPlanes; ++i, i4 += 4) {
-          plane.copy(planes[i]).applyMatrix4(viewMatrix, viewNormalMatrix);
-          plane.normal.toArray(dstArray, i4);
-          dstArray[i4 + 3] = plane.constant;
-        }
-      }
-
-      uniform.value = dstArray;
-      uniform.needsUpdate = true;
-    }
-
-    scope.numPlanes = nPlanes;
-    scope.numIntersection = 0;
-    return dstArray;
-  }
-}
-
-function WebGLCubeMaps(renderer) {
-  let cubemaps = new WeakMap();
-
-  function mapTextureMapping(texture, mapping) {
-    if (mapping === EquirectangularReflectionMapping) {
-      texture.mapping = CubeReflectionMapping;
-    } else if (mapping === EquirectangularRefractionMapping) {
-      texture.mapping = CubeRefractionMapping;
-    }
-
-    return texture;
-  }
-
-  function get(texture) {
-    if (texture && texture.isTexture) {
-      const mapping = texture.mapping;
-
-      if (mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping) {
-        if (cubemaps.has(texture)) {
-          const cubemap = cubemaps.get(texture).texture;
-          return mapTextureMapping(cubemap, texture.mapping);
-        } else {
-          const image = texture.image;
-
-          if (image && image.height > 0) {
-            const currentRenderTarget = renderer.getRenderTarget();
-            const renderTarget = new WebGLCubeRenderTarget(image.height / 2);
-            renderTarget.fromEquirectangularTexture(renderer, texture);
-            cubemaps.set(texture, renderTarget);
-            renderer.setRenderTarget(currentRenderTarget);
-            texture.addEventListener('dispose', onTextureDispose);
-            return mapTextureMapping(renderTarget.texture, texture.mapping);
-          } else {
-            // image not yet ready. try the conversion next frame
-            return null;
-          }
-        }
-      }
-    }
-
-    return texture;
-  }
-
-  function onTextureDispose(event) {
-    const texture = event.target;
-    texture.removeEventListener('dispose', onTextureDispose);
-    const cubemap = cubemaps.get(texture);
-
-    if (cubemap !== undefined) {
-      cubemaps.delete(texture);
-      cubemap.dispose();
-    }
-  }
-
-  function dispose() {
-    cubemaps = new WeakMap();
-  }
-
-  return {
-    get: get,
-    dispose: dispose
-  };
-}
-
-function WebGLExtensions(gl) {
-  const extensions = {};
-
-  function getExtension(name) {
-    if (extensions[name] !== undefined) {
-      return extensions[name];
-    }
-
-    let extension;
-
-    switch (name) {
-      case 'WEBGL_depth_texture':
-        extension = gl.getExtension('WEBGL_depth_texture') || gl.getExtension('MOZ_WEBGL_depth_texture') || gl.getExtension('WEBKIT_WEBGL_depth_texture');
-        break;
-
-      case 'EXT_texture_filter_anisotropic':
-        extension = gl.getExtension('EXT_texture_filter_anisotropic') || gl.getExtension('MOZ_EXT_texture_filter_anisotropic') || gl.getExtension('WEBKIT_EXT_texture_filter_anisotropic');
-        break;
-
-      case 'WEBGL_compressed_texture_s3tc':
-        extension = gl.getExtension('WEBGL_compressed_texture_s3tc') || gl.getExtension('MOZ_WEBGL_compressed_texture_s3tc') || gl.getExtension('WEBKIT_WEBGL_compressed_texture_s3tc');
-        break;
-
-      case 'WEBGL_compressed_texture_pvrtc':
-        extension = gl.getExtension('WEBGL_compressed_texture_pvrtc') || gl.getExtension('WEBKIT_WEBGL_compressed_texture_pvrtc');
-        break;
-
-      default:
-        extension = gl.getExtension(name);
-    }
-
-    extensions[name] = extension;
-    return extension;
-  }
-
-  return {
-    has: function (name) {
-      return getExtension(name) !== null;
-    },
-    init: function (capabilities) {
-      if (capabilities.isWebGL2) {
-        getExtension('EXT_color_buffer_float');
-      } else {
-        getExtension('WEBGL_depth_texture');
-        getExtension('OES_texture_float');
-        getExtension('OES_texture_half_float');
-        getExtension('OES_texture_half_float_linear');
-        getExtension('OES_standard_derivatives');
-        getExtension('OES_element_index_uint');
-        getExtension('OES_vertex_array_object');
-        getExtension('ANGLE_instanced_arrays');
-      }
-
-      getExtension('OES_texture_float_linear');
-      getExtension('EXT_color_buffer_half_float');
-    },
-    get: function (name) {
-      const extension = getExtension(name);
-
-      if (extension === null) {
-        console.warn('THREE.WebGLRenderer: ' + name + ' extension not supported.');
-      }
-
-      return extension;
-    }
-  };
-}
-
-function WebGLGeometries(gl, attributes, info, bindingStates) {
-  const geometries = {};
-  const wireframeAttributes = new WeakMap();
-
-  function onGeometryDispose(event) {
-    const geometry = event.target;
-
-    if (geometry.index !== null) {
-      attributes.remove(geometry.index);
-    }
-
-    for (const name in geometry.attributes) {
-      attributes.remove(geometry.attributes[name]);
-    }
-
-    geometry.removeEventListener('dispose', onGeometryDispose);
-    delete geometries[geometry.id];
-    const attribute = wireframeAttributes.get(geometry);
-
-    if (attribute) {
-      attributes.remove(attribute);
-      wireframeAttributes.delete(geometry);
-    }
-
-    bindingStates.releaseStatesOfGeometry(geometry);
-
-    if (geometry.isInstancedBufferGeometry === true) {
-      delete geometry._maxInstanceCount;
-    } //
-
-
-    info.memory.geometries--;
-  }
-
-  function get(object, geometry) {
-    if (geometries[geometry.id] === true) return geometry;
-    geometry.addEventListener('dispose', onGeometryDispose);
-    geometries[geometry.id] = true;
-    info.memory.geometries++;
-    return geometry;
-  }
-
-  function update(geometry) {
-    const geometryAttributes = geometry.attributes; // Updating index buffer in VAO now. See WebGLBindingStates.
-
-    for (const name in geometryAttributes) {
-      attributes.update(geometryAttributes[name], 34962);
-    } // morph targets
-
-
-    const morphAttributes = geometry.morphAttributes;
-
-    for (const name in morphAttributes) {
-      const array = morphAttributes[name];
-
-      for (let i = 0, l = array.length; i < l; i++) {
-        attributes.update(array[i], 34962);
-      }
-    }
-  }
-
-  function updateWireframeAttribute(geometry) {
-    const indices = [];
-    const geometryIndex = geometry.index;
-    const geometryPosition = geometry.attributes.position;
-    let version = 0;
-
-    if (geometryIndex !== null) {
-      const array = geometryIndex.array;
-      version = geometryIndex.version;
-
-      for (let i = 0, l = array.length; i < l; i += 3) {
-        const a = array[i + 0];
-        const b = array[i + 1];
-        const c = array[i + 2];
-        indices.push(a, b, b, c, c, a);
-      }
-    } else {
-      const array = geometryPosition.array;
-      version = geometryPosition.version;
-
-      for (let i = 0, l = array.length / 3 - 1; i < l; i += 3) {
-        const a = i + 0;
-        const b = i + 1;
-        const c = i + 2;
-        indices.push(a, b, b, c, c, a);
-      }
-    }
-
-    const attribute = new (arrayMax(indices) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute)(indices, 1);
-    attribute.version = version; // Updating index buffer in VAO now. See WebGLBindingStates
-    //
-
-    const previousAttribute = wireframeAttributes.get(geometry);
-    if (previousAttribute) attributes.remove(previousAttribute); //
-
-    wireframeAttributes.set(geometry, attribute);
-  }
-
-  function getWireframeAttribute(geometry) {
-    const currentAttribute = wireframeAttributes.get(geometry);
-
-    if (currentAttribute) {
-      const geometryIndex = geometry.index;
-
-      if (geometryIndex !== null) {
-        // if the attribute is obsolete, create a new one
-        if (currentAttribute.version < geometryIndex.version) {
-          updateWireframeAttribute(geometry);
-        }
-      }
-    } else {
-      updateWireframeAttribute(geometry);
-    }
-
-    return wireframeAttributes.get(geometry);
-  }
-
-  return {
-    get: get,
-    update: update,
-    getWireframeAttribute: getWireframeAttribute
-  };
-}
-
-function WebGLIndexedBufferRenderer(gl, extensions, info, capabilities) {
-  const isWebGL2 = capabilities.isWebGL2;
-  let mode;
-
-  function setMode(value) {
-    mode = value;
-  }
-
-  let type, bytesPerElement;
-
-  function setIndex(value) {
-    type = value.type;
-    bytesPerElement = value.bytesPerElement;
-  }
-
-  function render(start, count) {
-    gl.drawElements(mode, count, type, start * bytesPerElement);
-    info.update(count, mode, 1);
-  }
-
-  function renderInstances(start, count, primcount) {
-    if (primcount === 0) return;
-    let extension, methodName;
-
-    if (isWebGL2) {
-      extension = gl;
-      methodName = 'drawElementsInstanced';
-    } else {
-      extension = extensions.get('ANGLE_instanced_arrays');
-      methodName = 'drawElementsInstancedANGLE';
-
-      if (extension === null) {
-        console.error('THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.');
-        return;
-      }
-    }
-
-    extension[methodName](mode, count, type, start * bytesPerElement, primcount);
-    info.update(count, mode, primcount);
-  } //
-
-
-  this.setMode = setMode;
-  this.setIndex = setIndex;
-  this.render = render;
-  this.renderInstances = renderInstances;
-}
-
-function WebGLInfo(gl) {
-  const memory = {
-    geometries: 0,
-    textures: 0
-  };
-  const render = {
-    frame: 0,
-    calls: 0,
-    triangles: 0,
-    points: 0,
-    lines: 0
-  };
-
-  function update(count, mode, instanceCount) {
-    render.calls++;
-
-    switch (mode) {
-      case 4:
-        render.triangles += instanceCount * (count / 3);
-        break;
-
-      case 1:
-        render.lines += instanceCount * (count / 2);
-        break;
-
-      case 3:
-        render.lines += instanceCount * (count - 1);
-        break;
-
-      case 2:
-        render.lines += instanceCount * count;
-        break;
-
-      case 0:
-        render.points += instanceCount * count;
-        break;
-
-      default:
-        console.error('THREE.WebGLInfo: Unknown draw mode:', mode);
-        break;
-    }
-  }
-
-  function reset() {
-    render.frame++;
-    render.calls = 0;
-    render.triangles = 0;
-    render.points = 0;
-    render.lines = 0;
-  }
-
-  return {
-    memory: memory,
-    render: render,
-    programs: null,
-    autoReset: true,
-    reset: reset,
-    update: update
-  };
-}
-
-function numericalSort(a, b) {
-  return a[0] - b[0];
-}
-
-function absNumericalSort(a, b) {
-  return Math.abs(b[1]) - Math.abs(a[1]);
-}
-
-function WebGLMorphtargets(gl) {
-  const influencesList = {};
-  const morphInfluences = new Float32Array(8);
-  const workInfluences = [];
-
-  for (let i = 0; i < 8; i++) {
-    workInfluences[i] = [i, 0];
-  }
-
-  function update(object, geometry, material, program) {
-    const objectInfluences = object.morphTargetInfluences; // When object doesn't have morph target influences defined, we treat it as a 0-length array
-    // This is important to make sure we set up morphTargetBaseInfluence / morphTargetInfluences
-
-    const length = objectInfluences === undefined ? 0 : objectInfluences.length;
-    let influences = influencesList[geometry.id];
-
-    if (influences === undefined) {
-      // initialise list
-      influences = [];
-
-      for (let i = 0; i < length; i++) {
-        influences[i] = [i, 0];
-      }
-
-      influencesList[geometry.id] = influences;
-    } // Collect influences
-
-
-    for (let i = 0; i < length; i++) {
-      const influence = influences[i];
-      influence[0] = i;
-      influence[1] = objectInfluences[i];
-    }
-
-    influences.sort(absNumericalSort);
-
-    for (let i = 0; i < 8; i++) {
-      if (i < length && influences[i][1]) {
-        workInfluences[i][0] = influences[i][0];
-        workInfluences[i][1] = influences[i][1];
-      } else {
-        workInfluences[i][0] = Number.MAX_SAFE_INTEGER;
-        workInfluences[i][1] = 0;
-      }
-    }
-
-    workInfluences.sort(numericalSort);
-    const morphTargets = material.morphTargets && geometry.morphAttributes.position;
-    const morphNormals = material.morphNormals && geometry.morphAttributes.normal;
-    let morphInfluencesSum = 0;
-
-    for (let i = 0; i < 8; i++) {
-      const influence = workInfluences[i];
-      const index = influence[0];
-      const value = influence[1];
-
-      if (index !== Number.MAX_SAFE_INTEGER && value) {
-        if (morphTargets && geometry.getAttribute('morphTarget' + i) !== morphTargets[index]) {
-          geometry.setAttribute('morphTarget' + i, morphTargets[index]);
-        }
-
-        if (morphNormals && geometry.getAttribute('morphNormal' + i) !== morphNormals[index]) {
-          geometry.setAttribute('morphNormal' + i, morphNormals[index]);
-        }
-
-        morphInfluences[i] = value;
-        morphInfluencesSum += value;
-      } else {
-        if (morphTargets && geometry.hasAttribute('morphTarget' + i) === true) {
-          geometry.deleteAttribute('morphTarget' + i);
-        }
-
-        if (morphNormals && geometry.hasAttribute('morphNormal' + i) === true) {
-          geometry.deleteAttribute('morphNormal' + i);
-        }
-
-        morphInfluences[i] = 0;
-      }
-    } // GLSL shader uses formula baseinfluence * base + sum(target * influence)
-    // This allows us to switch between absolute morphs and relative morphs without changing shader code
-    // When baseinfluence = 1 - sum(influence), the above is equivalent to sum((target - base) * influence)
-
-
-    const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;
-    program.getUniforms().setValue(gl, 'morphTargetBaseInfluence', morphBaseInfluence);
-    program.getUniforms().setValue(gl, 'morphTargetInfluences', morphInfluences);
-  }
-
-  return {
-    update: update
-  };
-}
-
-function WebGLObjects(gl, geometries, attributes, info) {
-  let updateMap = new WeakMap();
-
-  function update(object) {
-    const frame = info.render.frame;
-    const geometry = object.geometry;
-    const buffergeometry = geometries.get(object, geometry); // Update once per frame
-
-    if (updateMap.get(buffergeometry) !== frame) {
-      geometries.update(buffergeometry);
-      updateMap.set(buffergeometry, frame);
-    }
-
-    if (object.isInstancedMesh) {
-      if (object.hasEventListener('dispose', onInstancedMeshDispose) === false) {
-        object.addEventListener('dispose', onInstancedMeshDispose);
-      }
-
-      attributes.update(object.instanceMatrix, 34962);
-
-      if (object.instanceColor !== null) {
-        attributes.update(object.instanceColor, 34962);
-      }
-    }
-
-    return buffergeometry;
-  }
-
-  function dispose() {
-    updateMap = new WeakMap();
-  }
-
-  function onInstancedMeshDispose(event) {
-    const instancedMesh = event.target;
-    instancedMesh.removeEventListener('dispose', onInstancedMeshDispose);
-    attributes.remove(instancedMesh.instanceMatrix);
-    if (instancedMesh.instanceColor !== null) attributes.remove(instancedMesh.instanceColor);
-  }
-
-  return {
-    update: update,
-    dispose: dispose
-  };
-}
-
-class DataTexture2DArray extends Texture {
-  constructor(data = null, width = 1, height = 1, depth = 1) {
-    super(null);
-    this.image = {
-      data,
-      width,
-      height,
-      depth
-    };
-    this.magFilter = NearestFilter;
-    this.minFilter = NearestFilter;
-    this.wrapR = ClampToEdgeWrapping;
-    this.generateMipmaps = false;
-    this.flipY = false;
-    this.needsUpdate = true;
-  }
-
-}
-
-exports.DataTexture2DArray = DataTexture2DArray;
-DataTexture2DArray.prototype.isDataTexture2DArray = true;
-
-class DataTexture3D extends Texture {
-  constructor(data = null, width = 1, height = 1, depth = 1) {
-    // We're going to add .setXXX() methods for setting properties later.
-    // Users can still set in DataTexture3D directly.
-    //
-    //	const texture = new THREE.DataTexture3D( data, width, height, depth );
-    // 	texture.anisotropy = 16;
-    //
-    // See #14839
-    super(null);
-    this.image = {
-      data,
-      width,
-      height,
-      depth
-    };
-    this.magFilter = NearestFilter;
-    this.minFilter = NearestFilter;
-    this.wrapR = ClampToEdgeWrapping;
-    this.generateMipmaps = false;
-    this.flipY = false;
-    this.needsUpdate = true;
-  }
-
-}
-
-exports.DataTexture3D = DataTexture3D;
-DataTexture3D.prototype.isDataTexture3D = true;
-/**
- * Uniforms of a program.
- * Those form a tree structure with a special top-level container for the root,
- * which you get by calling 'new WebGLUniforms( gl, program )'.
- *
- *
- * Properties of inner nodes including the top-level container:
- *
- * .seq - array of nested uniforms
- * .map - nested uniforms by name
- *
- *
- * Methods of all nodes except the top-level container:
- *
- * .setValue( gl, value, [textures] )
- *
- * 		uploads a uniform value(s)
- *  	the 'textures' parameter is needed for sampler uniforms
- *
- *
- * Static methods of the top-level container (textures factorizations):
- *
- * .upload( gl, seq, values, textures )
- *
- * 		sets uniforms in 'seq' to 'values[id].value'
- *
- * .seqWithValue( seq, values ) : filteredSeq
- *
- * 		filters 'seq' entries with corresponding entry in values
- *
- *
- * Methods of the top-level container (textures factorizations):
- *
- * .setValue( gl, name, value, textures )
- *
- * 		sets uniform with  name 'name' to 'value'
- *
- * .setOptional( gl, obj, prop )
- *
- * 		like .set for an optional property of the object
- *
- */
-
-const emptyTexture = new Texture();
-const emptyTexture2dArray = new DataTexture2DArray();
-const emptyTexture3d = new DataTexture3D();
-const emptyCubeTexture = new CubeTexture(); // --- Utilities ---
-// Array Caches (provide typed arrays for temporary by size)
-
-const arrayCacheF32 = [];
-const arrayCacheI32 = []; // Float32Array caches used for uploading Matrix uniforms
-
-const mat4array = new Float32Array(16);
-const mat3array = new Float32Array(9);
-const mat2array = new Float32Array(4); // Flattening for arrays of vectors and matrices
-
-function flatten(array, nBlocks, blockSize) {
-  const firstElem = array[0];
-  if (firstElem <= 0 || firstElem > 0) return array; // unoptimized: ! isNaN( firstElem )
-  // see http://jacksondunstan.com/articles/983
-
-  const n = nBlocks * blockSize;
-  let r = arrayCacheF32[n];
-
-  if (r === undefined) {
-    r = new Float32Array(n);
-    arrayCacheF32[n] = r;
-  }
-
-  if (nBlocks !== 0) {
-    firstElem.toArray(r, 0);
-
-    for (let i = 1, offset = 0; i !== nBlocks; ++i) {
-      offset += blockSize;
-      array[i].toArray(r, offset);
-    }
-  }
-
-  return r;
-}
-
-function arraysEqual(a, b) {
-  if (a.length !== b.length) return false;
-
-  for (let i = 0, l = a.length; i < l; i++) {
-    if (a[i] !== b[i]) return false;
-  }
-
-  return true;
-}
-
-function copyArray(a, b) {
-  for (let i = 0, l = b.length; i < l; i++) {
-    a[i] = b[i];
-  }
-} // Texture unit allocation
-
-
-function allocTexUnits(textures, n) {
-  let r = arrayCacheI32[n];
-
-  if (r === undefined) {
-    r = new Int32Array(n);
-    arrayCacheI32[n] = r;
-  }
-
-  for (let i = 0; i !== n; ++i) {
-    r[i] = textures.allocateTextureUnit();
-  }
-
-  return r;
-} // --- Setters ---
-// Note: Defining these methods externally, because they come in a bunch
-// and this way their names minify.
-// Single scalar
-
-
-function setValueV1f(gl, v) {
-  const cache = this.cache;
-  if (cache[0] === v) return;
-  gl.uniform1f(this.addr, v);
-  cache[0] = v;
-} // Single float vector (from flat array or THREE.VectorN)
-
-
-function setValueV2f(gl, v) {
-  const cache = this.cache;
-
-  if (v.x !== undefined) {
-    if (cache[0] !== v.x || cache[1] !== v.y) {
-      gl.uniform2f(this.addr, v.x, v.y);
-      cache[0] = v.x;
-      cache[1] = v.y;
-    }
-  } else {
-    if (arraysEqual(cache, v)) return;
-    gl.uniform2fv(this.addr, v);
-    copyArray(cache, v);
-  }
-}
-
-function setValueV3f(gl, v) {
-  const cache = this.cache;
-
-  if (v.x !== undefined) {
-    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z) {
-      gl.uniform3f(this.addr, v.x, v.y, v.z);
-      cache[0] = v.x;
-      cache[1] = v.y;
-      cache[2] = v.z;
-    }
-  } else if (v.r !== undefined) {
-    if (cache[0] !== v.r || cache[1] !== v.g || cache[2] !== v.b) {
-      gl.uniform3f(this.addr, v.r, v.g, v.b);
-      cache[0] = v.r;
-      cache[1] = v.g;
-      cache[2] = v.b;
-    }
-  } else {
-    if (arraysEqual(cache, v)) return;
-    gl.uniform3fv(this.addr, v);
-    copyArray(cache, v);
-  }
-}
-
-function setValueV4f(gl, v) {
-  const cache = this.cache;
-
-  if (v.x !== undefined) {
-    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z || cache[3] !== v.w) {
-      gl.uniform4f(this.addr, v.x, v.y, v.z, v.w);
-      cache[0] = v.x;
-      cache[1] = v.y;
-      cache[2] = v.z;
-      cache[3] = v.w;
-    }
-  } else {
-    if (arraysEqual(cache, v)) return;
-    gl.uniform4fv(this.addr, v);
-    copyArray(cache, v);
-  }
-} // Single matrix (from flat array or MatrixN)
-
-
-function setValueM2(gl, v) {
-  const cache = this.cache;
-  const elements = v.elements;
-
-  if (elements === undefined) {
-    if (arraysEqual(cache, v)) return;
-    gl.uniformMatrix2fv(this.addr, false, v);
-    copyArray(cache, v);
-  } else {
-    if (arraysEqual(cache, elements)) return;
-    mat2array.set(elements);
-    gl.uniformMatrix2fv(this.addr, false, mat2array);
-    copyArray(cache, elements);
-  }
-}
-
-function setValueM3(gl, v) {
-  const cache = this.cache;
-  const elements = v.elements;
-
-  if (elements === undefined) {
-    if (arraysEqual(cache, v)) return;
-    gl.uniformMatrix3fv(this.addr, false, v);
-    copyArray(cache, v);
-  } else {
-    if (arraysEqual(cache, elements)) return;
-    mat3array.set(elements);
-    gl.uniformMatrix3fv(this.addr, false, mat3array);
-    copyArray(cache, elements);
-  }
-}
-
-function setValueM4(gl, v) {
-  const cache = this.cache;
-  const elements = v.elements;
-
-  if (elements === undefined) {
-    if (arraysEqual(cache, v)) return;
-    gl.uniformMatrix4fv(this.addr, false, v);
-    copyArray(cache, v);
-  } else {
-    if (arraysEqual(cache, elements)) return;
-    mat4array.set(elements);
-    gl.uniformMatrix4fv(this.addr, false, mat4array);
-    copyArray(cache, elements);
-  }
-} // Single texture (2D / Cube)
-
-
-function setValueT1(gl, v, textures) {
-  const cache = this.cache;
-  const unit = textures.allocateTextureUnit();
-
-  if (cache[0] !== unit) {
-    gl.uniform1i(this.addr, unit);
-    cache[0] = unit;
-  }
-
-  textures.safeSetTexture2D(v || emptyTexture, unit);
-}
-
-function setValueT2DArray1(gl, v, textures) {
-  const cache = this.cache;
-  const unit = textures.allocateTextureUnit();
-
-  if (cache[0] !== unit) {
-    gl.uniform1i(this.addr, unit);
-    cache[0] = unit;
-  }
-
-  textures.setTexture2DArray(v || emptyTexture2dArray, unit);
-}
-
-function setValueT3D1(gl, v, textures) {
-  const cache = this.cache;
-  const unit = textures.allocateTextureUnit();
-
-  if (cache[0] !== unit) {
-    gl.uniform1i(this.addr, unit);
-    cache[0] = unit;
-  }
-
-  textures.setTexture3D(v || emptyTexture3d, unit);
-}
-
-function setValueT6(gl, v, textures) {
-  const cache = this.cache;
-  const unit = textures.allocateTextureUnit();
-
-  if (cache[0] !== unit) {
-    gl.uniform1i(this.addr, unit);
-    cache[0] = unit;
-  }
-
-  textures.safeSetTextureCube(v || emptyCubeTexture, unit);
-} // Integer / Boolean vectors or arrays thereof (always flat arrays)
-
-
-function setValueV1i(gl, v) {
-  const cache = this.cache;
-  if (cache[0] === v) return;
-  gl.uniform1i(this.addr, v);
-  cache[0] = v;
-}
-
-function setValueV2i(gl, v) {
-  const cache = this.cache;
-  if (arraysEqual(cache, v)) return;
-  gl.uniform2iv(this.addr, v);
-  copyArray(cache, v);
-}
-
-function setValueV3i(gl, v) {
-  const cache = this.cache;
-  if (arraysEqual(cache, v)) return;
-  gl.uniform3iv(this.addr, v);
-  copyArray(cache, v);
-}
-
-function setValueV4i(gl, v) {
-  const cache = this.cache;
-  if (arraysEqual(cache, v)) return;
-  gl.uniform4iv(this.addr, v);
-  copyArray(cache, v);
-} // uint
-
-
-function setValueV1ui(gl, v) {
-  const cache = this.cache;
-  if (cache[0] === v) return;
-  gl.uniform1ui(this.addr, v);
-  cache[0] = v;
-} // Helper to pick the right setter for the singular case
-
-
-function getSingularSetter(type) {
-  switch (type) {
-    case 0x1406:
-      return setValueV1f;
-    // FLOAT
-
-    case 0x8b50:
-      return setValueV2f;
-    // _VEC2
-
-    case 0x8b51:
-      return setValueV3f;
-    // _VEC3
-
-    case 0x8b52:
-      return setValueV4f;
-    // _VEC4
-
-    case 0x8b5a:
-      return setValueM2;
-    // _MAT2
-
-    case 0x8b5b:
-      return setValueM3;
-    // _MAT3
-
-    case 0x8b5c:
-      return setValueM4;
-    // _MAT4
-
-    case 0x1404:
-    case 0x8b56:
-      return setValueV1i;
-    // INT, BOOL
-
-    case 0x8b53:
-    case 0x8b57:
-      return setValueV2i;
-    // _VEC2
-
-    case 0x8b54:
-    case 0x8b58:
-      return setValueV3i;
-    // _VEC3
-
-    case 0x8b55:
-    case 0x8b59:
-      return setValueV4i;
-    // _VEC4
-
-    case 0x1405:
-      return setValueV1ui;
-    // UINT
-
-    case 0x8b5e: // SAMPLER_2D
-
-    case 0x8d66: // SAMPLER_EXTERNAL_OES
-
-    case 0x8dca: // INT_SAMPLER_2D
-
-    case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D
-
-    case 0x8b62:
-      // SAMPLER_2D_SHADOW
-      return setValueT1;
-
-    case 0x8b5f: // SAMPLER_3D
-
-    case 0x8dcb: // INT_SAMPLER_3D
-
-    case 0x8dd3:
-      // UNSIGNED_INT_SAMPLER_3D
-      return setValueT3D1;
-
-    case 0x8b60: // SAMPLER_CUBE
-
-    case 0x8dcc: // INT_SAMPLER_CUBE
-
-    case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE
-
-    case 0x8dc5:
-      // SAMPLER_CUBE_SHADOW
-      return setValueT6;
-
-    case 0x8dc1: // SAMPLER_2D_ARRAY
-
-    case 0x8dcf: // INT_SAMPLER_2D_ARRAY
-
-    case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY
-
-    case 0x8dc4:
-      // SAMPLER_2D_ARRAY_SHADOW
-      return setValueT2DArray1;
-  }
-} // Array of scalars
-
-
-function setValueV1fArray(gl, v) {
-  gl.uniform1fv(this.addr, v);
-} // Integer / Boolean vectors or arrays thereof (always flat arrays)
-
-
-function setValueV1iArray(gl, v) {
-  gl.uniform1iv(this.addr, v);
-}
-
-function setValueV2iArray(gl, v) {
-  gl.uniform2iv(this.addr, v);
-}
-
-function setValueV3iArray(gl, v) {
-  gl.uniform3iv(this.addr, v);
-}
-
-function setValueV4iArray(gl, v) {
-  gl.uniform4iv(this.addr, v);
-} // Array of vectors (flat or from THREE classes)
-
-
-function setValueV2fArray(gl, v) {
-  const data = flatten(v, this.size, 2);
-  gl.uniform2fv(this.addr, data);
-}
-
-function setValueV3fArray(gl, v) {
-  const data = flatten(v, this.size, 3);
-  gl.uniform3fv(this.addr, data);
-}
-
-function setValueV4fArray(gl, v) {
-  const data = flatten(v, this.size, 4);
-  gl.uniform4fv(this.addr, data);
-} // Array of matrices (flat or from THREE clases)
-
-
-function setValueM2Array(gl, v) {
-  const data = flatten(v, this.size, 4);
-  gl.uniformMatrix2fv(this.addr, false, data);
-}
-
-function setValueM3Array(gl, v) {
-  const data = flatten(v, this.size, 9);
-  gl.uniformMatrix3fv(this.addr, false, data);
-}
-
-function setValueM4Array(gl, v) {
-  const data = flatten(v, this.size, 16);
-  gl.uniformMatrix4fv(this.addr, false, data);
-} // Array of textures (2D / Cube)
-
-
-function setValueT1Array(gl, v, textures) {
-  const n = v.length;
-  const units = allocTexUnits(textures, n);
-  gl.uniform1iv(this.addr, units);
-
-  for (let i = 0; i !== n; ++i) {
-    textures.safeSetTexture2D(v[i] || emptyTexture, units[i]);
-  }
-}
-
-function setValueT6Array(gl, v, textures) {
-  const n = v.length;
-  const units = allocTexUnits(textures, n);
-  gl.uniform1iv(this.addr, units);
-
-  for (let i = 0; i !== n; ++i) {
-    textures.safeSetTextureCube(v[i] || emptyCubeTexture, units[i]);
-  }
-} // Helper to pick the right setter for a pure (bottom-level) array
-
-
-function getPureArraySetter(type) {
-  switch (type) {
-    case 0x1406:
-      return setValueV1fArray;
-    // FLOAT
-
-    case 0x8b50:
-      return setValueV2fArray;
-    // _VEC2
-
-    case 0x8b51:
-      return setValueV3fArray;
-    // _VEC3
-
-    case 0x8b52:
-      return setValueV4fArray;
-    // _VEC4
-
-    case 0x8b5a:
-      return setValueM2Array;
-    // _MAT2
-
-    case 0x8b5b:
-      return setValueM3Array;
-    // _MAT3
-
-    case 0x8b5c:
-      return setValueM4Array;
-    // _MAT4
-
-    case 0x1404:
-    case 0x8b56:
-      return setValueV1iArray;
-    // INT, BOOL
-
-    case 0x8b53:
-    case 0x8b57:
-      return setValueV2iArray;
-    // _VEC2
-
-    case 0x8b54:
-    case 0x8b58:
-      return setValueV3iArray;
-    // _VEC3
-
-    case 0x8b55:
-    case 0x8b59:
-      return setValueV4iArray;
-    // _VEC4
-
-    case 0x8b5e: // SAMPLER_2D
-
-    case 0x8d66: // SAMPLER_EXTERNAL_OES
-
-    case 0x8dca: // INT_SAMPLER_2D
-
-    case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D
-
-    case 0x8b62:
-      // SAMPLER_2D_SHADOW
-      return setValueT1Array;
-
-    case 0x8b60: // SAMPLER_CUBE
-
-    case 0x8dcc: // INT_SAMPLER_CUBE
-
-    case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE
-
-    case 0x8dc5:
-      // SAMPLER_CUBE_SHADOW
-      return setValueT6Array;
-  }
-} // --- Uniform Classes ---
-
-
-function SingleUniform(id, activeInfo, addr) {
-  this.id = id;
-  this.addr = addr;
-  this.cache = [];
-  this.setValue = getSingularSetter(activeInfo.type); // this.path = activeInfo.name; // DEBUG
-}
-
-function PureArrayUniform(id, activeInfo, addr) {
-  this.id = id;
-  this.addr = addr;
-  this.cache = [];
-  this.size = activeInfo.size;
-  this.setValue = getPureArraySetter(activeInfo.type); // this.path = activeInfo.name; // DEBUG
-}
-
-PureArrayUniform.prototype.updateCache = function (data) {
-  const cache = this.cache;
-
-  if (data instanceof Float32Array && cache.length !== data.length) {
-    this.cache = new Float32Array(data.length);
-  }
-
-  copyArray(cache, data);
-};
-
-function StructuredUniform(id) {
-  this.id = id;
-  this.seq = [];
-  this.map = {};
-}
-
-StructuredUniform.prototype.setValue = function (gl, value, textures) {
-  const seq = this.seq;
-
-  for (let i = 0, n = seq.length; i !== n; ++i) {
-    const u = seq[i];
-    u.setValue(gl, value[u.id], textures);
-  }
-}; // --- Top-level ---
-// Parser - builds up the property tree from the path strings
-
-
-const RePathPart = /(\w+)(\])?(\[|\.)?/g; // extracts
-// 	- the identifier (member name or array index)
-//  - followed by an optional right bracket (found when array index)
-//  - followed by an optional left bracket or dot (type of subscript)
-//
-// Note: These portions can be read in a non-overlapping fashion and
-// allow straightforward parsing of the hierarchy that WebGL encodes
-// in the uniform names.
-
-function addUniform(container, uniformObject) {
-  container.seq.push(uniformObject);
-  container.map[uniformObject.id] = uniformObject;
-}
-
-function parseUniform(activeInfo, addr, container) {
-  const path = activeInfo.name,
-        pathLength = path.length; // reset RegExp object, because of the early exit of a previous run
-
-  RePathPart.lastIndex = 0;
-
-  while (true) {
-    const match = RePathPart.exec(path),
-          matchEnd = RePathPart.lastIndex;
-    let id = match[1];
-    const idIsIndex = match[2] === ']',
-          subscript = match[3];
-    if (idIsIndex) id = id | 0; // convert to integer
-
-    if (subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength) {
-      // bare name or "pure" bottom-level array "[0]" suffix
-      addUniform(container, subscript === undefined ? new SingleUniform(id, activeInfo, addr) : new PureArrayUniform(id, activeInfo, addr));
-      break;
-    } else {
-      // step into inner node / create it in case it doesn't exist
-      const map = container.map;
-      let next = map[id];
-
-      if (next === undefined) {
-        next = new StructuredUniform(id);
-        addUniform(container, next);
-      }
-
-      container = next;
-    }
-  }
-} // Root Container
-
-
-function WebGLUniforms(gl, program) {
-  this.seq = [];
-  this.map = {};
-  const n = gl.getProgramParameter(program, 35718);
-
-  for (let i = 0; i < n; ++i) {
-    const info = gl.getActiveUniform(program, i),
-          addr = gl.getUniformLocation(program, info.name);
-    parseUniform(info, addr, this);
-  }
-}
-
-WebGLUniforms.prototype.setValue = function (gl, name, value, textures) {
-  const u = this.map[name];
-  if (u !== undefined) u.setValue(gl, value, textures);
-};
-
-WebGLUniforms.prototype.setOptional = function (gl, object, name) {
-  const v = object[name];
-  if (v !== undefined) this.setValue(gl, name, v);
-}; // Static interface
-
-
-WebGLUniforms.upload = function (gl, seq, values, textures) {
-  for (let i = 0, n = seq.length; i !== n; ++i) {
-    const u = seq[i],
-          v = values[u.id];
-
-    if (v.needsUpdate !== false) {
-      // note: always updating when .needsUpdate is undefined
-      u.setValue(gl, v.value, textures);
-    }
-  }
-};
-
-WebGLUniforms.seqWithValue = function (seq, values) {
-  const r = [];
-
-  for (let i = 0, n = seq.length; i !== n; ++i) {
-    const u = seq[i];
-    if (u.id in values) r.push(u);
-  }
-
-  return r;
-};
-
-function WebGLShader(gl, type, string) {
-  const shader = gl.createShader(type);
-  gl.shaderSource(shader, string);
-  gl.compileShader(shader);
-  return shader;
-}
-
-let programIdCount = 0;
-
-function addLineNumbers(string) {
-  const lines = string.split('\n');
-
-  for (let i = 0; i < lines.length; i++) {
-    lines[i] = i + 1 + ': ' + lines[i];
-  }
-
-  return lines.join('\n');
-}
-
-function getEncodingComponents(encoding) {
-  switch (encoding) {
-    case LinearEncoding:
-      return ['Linear', '( value )'];
-
-    case sRGBEncoding:
-      return ['sRGB', '( value )'];
-
-    case RGBEEncoding:
-      return ['RGBE', '( value )'];
-
-    case RGBM7Encoding:
-      return ['RGBM', '( value, 7.0 )'];
-
-    case RGBM16Encoding:
-      return ['RGBM', '( value, 16.0 )'];
-
-    case RGBDEncoding:
-      return ['RGBD', '( value, 256.0 )'];
-
-    case GammaEncoding:
-      return ['Gamma', '( value, float( GAMMA_FACTOR ) )'];
-
-    case LogLuvEncoding:
-      return ['LogLuv', '( value )'];
-
-    default:
-      console.warn('THREE.WebGLProgram: Unsupported encoding:', encoding);
-      return ['Linear', '( value )'];
-  }
-}
-
-function getShaderErrors(gl, shader, type) {
-  const status = gl.getShaderParameter(shader, 35713);
-  const log = gl.getShaderInfoLog(shader).trim();
-  if (status && log === '') return ''; // --enable-privileged-webgl-extension
-  // console.log( '**' + type + '**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );
-
-  const source = gl.getShaderSource(shader);
-  return 'THREE.WebGLShader: gl.getShaderInfoLog() ' + type + '\n' + log + addLineNumbers(source);
-}
-
-function getTexelDecodingFunction(functionName, encoding) {
-  const components = getEncodingComponents(encoding);
-  return 'vec4 ' + functionName + '( vec4 value ) { return ' + components[0] + 'ToLinear' + components[1] + '; }';
-}
-
-function getTexelEncodingFunction(functionName, encoding) {
-  const components = getEncodingComponents(encoding);
-  return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[0] + components[1] + '; }';
-}
-
-function getToneMappingFunction(functionName, toneMapping) {
-  let toneMappingName;
-
-  switch (toneMapping) {
-    case LinearToneMapping:
-      toneMappingName = 'Linear';
-      break;
-
-    case ReinhardToneMapping:
-      toneMappingName = 'Reinhard';
-      break;
-
-    case CineonToneMapping:
-      toneMappingName = 'OptimizedCineon';
-      break;
-
-    case ACESFilmicToneMapping:
-      toneMappingName = 'ACESFilmic';
-      break;
-
-    case CustomToneMapping:
-      toneMappingName = 'Custom';
-      break;
-
-    default:
-      console.warn('THREE.WebGLProgram: Unsupported toneMapping:', toneMapping);
-      toneMappingName = 'Linear';
-  }
-
-  return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';
-}
-
-function generateExtensions(parameters) {
-  const chunks = [parameters.extensionDerivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.tangentSpaceNormalMap || parameters.clearcoatNormalMap || parameters.flatShading || parameters.shaderID === 'physical' ? '#extension GL_OES_standard_derivatives : enable' : '', (parameters.extensionFragDepth || parameters.logarithmicDepthBuffer) && parameters.rendererExtensionFragDepth ? '#extension GL_EXT_frag_depth : enable' : '', parameters.extensionDrawBuffers && parameters.rendererExtensionDrawBuffers ? '#extension GL_EXT_draw_buffers : require' : '', (parameters.extensionShaderTextureLOD || parameters.envMap) && parameters.rendererExtensionShaderTextureLod ? '#extension GL_EXT_shader_texture_lod : enable' : ''];
-  return chunks.filter(filterEmptyLine).join('\n');
-}
-
-function generateDefines(defines) {
-  const chunks = [];
-
-  for (const name in defines) {
-    const value = defines[name];
-    if (value === false) continue;
-    chunks.push('#define ' + name + ' ' + value);
-  }
-
-  return chunks.join('\n');
-}
-
-function fetchAttributeLocations(gl, program) {
-  const attributes = {};
-  const n = gl.getProgramParameter(program, 35721);
-
-  for (let i = 0; i < n; i++) {
-    const info = gl.getActiveAttrib(program, i);
-    const name = info.name; // console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );
-
-    attributes[name] = gl.getAttribLocation(program, name);
-  }
-
-  return attributes;
-}
-
-function filterEmptyLine(string) {
-  return string !== '';
-}
-
-function replaceLightNums(string, parameters) {
-  return string.replace(/NUM_DIR_LIGHTS/g, parameters.numDirLights).replace(/NUM_SPOT_LIGHTS/g, parameters.numSpotLights).replace(/NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights).replace(/NUM_POINT_LIGHTS/g, parameters.numPointLights).replace(/NUM_HEMI_LIGHTS/g, parameters.numHemiLights).replace(/NUM_DIR_LIGHT_SHADOWS/g, parameters.numDirLightShadows).replace(/NUM_SPOT_LIGHT_SHADOWS/g, parameters.numSpotLightShadows).replace(/NUM_POINT_LIGHT_SHADOWS/g, parameters.numPointLightShadows);
-}
-
-function replaceClippingPlaneNums(string, parameters) {
-  return string.replace(/NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes).replace(/UNION_CLIPPING_PLANES/g, parameters.numClippingPlanes - parameters.numClipIntersection);
-} // Resolve Includes
-
-
-const includePattern = /^[ \t]*#include +<([\w\d./]+)>/gm;
-
-function resolveIncludes(string) {
-  return string.replace(includePattern, includeReplacer);
-}
-
-function includeReplacer(match, include) {
-  const string = ShaderChunk[include];
-
-  if (string === undefined) {
-    throw new Error('Can not resolve #include <' + include + '>');
-  }
-
-  return resolveIncludes(string);
-} // Unroll Loops
-
-
-const deprecatedUnrollLoopPattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;
-const unrollLoopPattern = /#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g;
-
-function unrollLoops(string) {
-  return string.replace(unrollLoopPattern, loopReplacer).replace(deprecatedUnrollLoopPattern, deprecatedLoopReplacer);
-}
-
-function deprecatedLoopReplacer(match, start, end, snippet) {
-  console.warn('WebGLProgram: #pragma unroll_loop shader syntax is deprecated. Please use #pragma unroll_loop_start syntax instead.');
-  return loopReplacer(match, start, end, snippet);
-}
-
-function loopReplacer(match, start, end, snippet) {
-  let string = '';
-
-  for (let i = parseInt(start); i < parseInt(end); i++) {
-    string += snippet.replace(/\[\s*i\s*\]/g, '[ ' + i + ' ]').replace(/UNROLLED_LOOP_INDEX/g, i);
-  }
-
-  return string;
-} //
-
-
-function generatePrecision(parameters) {
-  let precisionstring = 'precision ' + parameters.precision + ' float;\nprecision ' + parameters.precision + ' int;';
-
-  if (parameters.precision === 'highp') {
-    precisionstring += '\n#define HIGH_PRECISION';
-  } else if (parameters.precision === 'mediump') {
-    precisionstring += '\n#define MEDIUM_PRECISION';
-  } else if (parameters.precision === 'lowp') {
-    precisionstring += '\n#define LOW_PRECISION';
-  }
-
-  return precisionstring;
-}
-
-function generateShadowMapTypeDefine(parameters) {
-  let shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';
-
-  if (parameters.shadowMapType === PCFShadowMap) {
-    shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';
-  } else if (parameters.shadowMapType === PCFSoftShadowMap) {
-    shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';
-  } else if (parameters.shadowMapType === VSMShadowMap) {
-    shadowMapTypeDefine = 'SHADOWMAP_TYPE_VSM';
-  }
-
-  return shadowMapTypeDefine;
-}
-
-function generateEnvMapTypeDefine(parameters) {
-  let envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
-
-  if (parameters.envMap) {
-    switch (parameters.envMapMode) {
-      case CubeReflectionMapping:
-      case CubeRefractionMapping:
-        envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
-        break;
-
-      case CubeUVReflectionMapping:
-      case CubeUVRefractionMapping:
-        envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
-        break;
-    }
-  }
-
-  return envMapTypeDefine;
-}
-
-function generateEnvMapModeDefine(parameters) {
-  let envMapModeDefine = 'ENVMAP_MODE_REFLECTION';
-
-  if (parameters.envMap) {
-    switch (parameters.envMapMode) {
-      case CubeRefractionMapping:
-      case CubeUVRefractionMapping:
-        envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
-        break;
-    }
-  }
-
-  return envMapModeDefine;
-}
-
-function generateEnvMapBlendingDefine(parameters) {
-  let envMapBlendingDefine = 'ENVMAP_BLENDING_NONE';
-
-  if (parameters.envMap) {
-    switch (parameters.combine) {
-      case MultiplyOperation:
-        envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
-        break;
-
-      case MixOperation:
-        envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
-        break;
-
-      case AddOperation:
-        envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
-        break;
-    }
-  }
-
-  return envMapBlendingDefine;
-}
-
-function WebGLProgram(renderer, cacheKey, parameters, bindingStates) {
-  const gl = renderer.getContext();
-  const defines = parameters.defines;
-  let vertexShader = parameters.vertexShader;
-  let fragmentShader = parameters.fragmentShader;
-  const shadowMapTypeDefine = generateShadowMapTypeDefine(parameters);
-  const envMapTypeDefine = generateEnvMapTypeDefine(parameters);
-  const envMapModeDefine = generateEnvMapModeDefine(parameters);
-  const envMapBlendingDefine = generateEnvMapBlendingDefine(parameters);
-  const gammaFactorDefine = renderer.gammaFactor > 0 ? renderer.gammaFactor : 1.0;
-  const customExtensions = parameters.isWebGL2 ? '' : generateExtensions(parameters);
-  const customDefines = generateDefines(defines);
-  const program = gl.createProgram();
-  let prefixVertex, prefixFragment;
-  let versionString = parameters.glslVersion ? '#version ' + parameters.glslVersion + '\n' : '';
-
-  if (parameters.isRawShaderMaterial) {
-    prefixVertex = [customDefines].filter(filterEmptyLine).join('\n');
-
-    if (prefixVertex.length > 0) {
-      prefixVertex += '\n';
-    }
-
-    prefixFragment = [customExtensions, customDefines].filter(filterEmptyLine).join('\n');
-
-    if (prefixFragment.length > 0) {
-      prefixFragment += '\n';
-    }
-  } else {
-    prefixVertex = [generatePrecision(parameters), '#define SHADER_NAME ' + parameters.shaderName, customDefines, parameters.instancing ? '#define USE_INSTANCING' : '', parameters.instancingColor ? '#define USE_INSTANCING_COLOR' : '', parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '', '#define GAMMA_FACTOR ' + gammaFactorDefine, '#define MAX_BONES ' + parameters.maxBones, parameters.useFog && parameters.fog ? '#define USE_FOG' : '', parameters.useFog && parameters.fogExp2 ? '#define FOG_EXP2' : '', parameters.map ? '#define USE_MAP' : '', parameters.envMap ? '#define USE_ENVMAP' : '', parameters.envMap ? '#define ' + envMapModeDefine : '', parameters.lightMap ? '#define USE_LIGHTMAP' : '', parameters.aoMap ? '#define USE_AOMAP' : '', parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', parameters.bumpMap ? '#define USE_BUMPMAP' : '', parameters.normalMap ? '#define USE_NORMALMAP' : '', parameters.normalMap && parameters.objectSpaceNormalMap ? '#define OBJECTSPACE_NORMALMAP' : '', parameters.normalMap && parameters.tangentSpaceNormalMap ? '#define TANGENTSPACE_NORMALMAP' : '', parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '', parameters.specularMap ? '#define USE_SPECULARMAP' : '', parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', parameters.alphaMap ? '#define USE_ALPHAMAP' : '', parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', parameters.vertexTangents ? '#define USE_TANGENT' : '', parameters.vertexColors ? '#define USE_COLOR' : '', parameters.vertexUvs ? '#define USE_UV' : '', parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', parameters.flatShading ? '#define FLAT_SHADED' : '', parameters.skinning ? '#define USE_SKINNING' : '', parameters.useVertexTexture ? '#define BONE_TEXTURE' : '', parameters.morphTargets ? '#define USE_MORPHTARGETS' : '', parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '', parameters.doubleSided ? '#define DOUBLE_SIDED' : '', parameters.flipSided ? '#define FLIP_SIDED' : '', parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '', parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ? '#define USE_LOGDEPTHBUF_EXT' : '', 'uniform mat4 modelMatrix;', 'uniform mat4 modelViewMatrix;', 'uniform mat4 projectionMatrix;', 'uniform mat4 viewMatrix;', 'uniform mat3 normalMatrix;', 'uniform vec3 cameraPosition;', 'uniform bool isOrthographic;', '#ifdef USE_INSTANCING', '	attribute mat4 instanceMatrix;', '#endif', '#ifdef USE_INSTANCING_COLOR', '	attribute vec3 instanceColor;', '#endif', 'attribute vec3 position;', 'attribute vec3 normal;', 'attribute vec2 uv;', '#ifdef USE_TANGENT', '	attribute vec4 tangent;', '#endif', '#ifdef USE_COLOR', '	attribute vec3 color;', '#endif', '#ifdef USE_MORPHTARGETS', '	attribute vec3 morphTarget0;', '	attribute vec3 morphTarget1;', '	attribute vec3 morphTarget2;', '	attribute vec3 morphTarget3;', '	#ifdef USE_MORPHNORMALS', '		attribute vec3 morphNormal0;', '		attribute vec3 morphNormal1;', '		attribute vec3 morphNormal2;', '		attribute vec3 morphNormal3;', '	#else', '		attribute vec3 morphTarget4;', '		attribute vec3 morphTarget5;', '		attribute vec3 morphTarget6;', '		attribute vec3 morphTarget7;', '	#endif', '#endif', '#ifdef USE_SKINNING', '	attribute vec4 skinIndex;', '	attribute vec4 skinWeight;', '#endif', '\n'].filter(filterEmptyLine).join('\n');
-    prefixFragment = [customExtensions, generatePrecision(parameters), '#define SHADER_NAME ' + parameters.shaderName, customDefines, parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest + (parameters.alphaTest % 1 ? '' : '.0') : '', // add '.0' if integer
-    '#define GAMMA_FACTOR ' + gammaFactorDefine, parameters.useFog && parameters.fog ? '#define USE_FOG' : '', parameters.useFog && parameters.fogExp2 ? '#define FOG_EXP2' : '', parameters.map ? '#define USE_MAP' : '', parameters.matcap ? '#define USE_MATCAP' : '', parameters.envMap ? '#define USE_ENVMAP' : '', parameters.envMap ? '#define ' + envMapTypeDefine : '', parameters.envMap ? '#define ' + envMapModeDefine : '', parameters.envMap ? '#define ' + envMapBlendingDefine : '', parameters.lightMap ? '#define USE_LIGHTMAP' : '', parameters.aoMap ? '#define USE_AOMAP' : '', parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', parameters.bumpMap ? '#define USE_BUMPMAP' : '', parameters.normalMap ? '#define USE_NORMALMAP' : '', parameters.normalMap && parameters.objectSpaceNormalMap ? '#define OBJECTSPACE_NORMALMAP' : '', parameters.normalMap && parameters.tangentSpaceNormalMap ? '#define TANGENTSPACE_NORMALMAP' : '', parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', parameters.specularMap ? '#define USE_SPECULARMAP' : '', parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', parameters.alphaMap ? '#define USE_ALPHAMAP' : '', parameters.sheen ? '#define USE_SHEEN' : '', parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', parameters.vertexTangents ? '#define USE_TANGENT' : '', parameters.vertexColors || parameters.instancingColor ? '#define USE_COLOR' : '', parameters.vertexUvs ? '#define USE_UV' : '', parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', parameters.gradientMap ? '#define USE_GRADIENTMAP' : '', parameters.flatShading ? '#define FLAT_SHADED' : '', parameters.doubleSided ? '#define DOUBLE_SIDED' : '', parameters.flipSided ? '#define FLIP_SIDED' : '', parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '', parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '', parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ? '#define USE_LOGDEPTHBUF_EXT' : '', (parameters.extensionShaderTextureLOD || parameters.envMap) && parameters.rendererExtensionShaderTextureLod ? '#define TEXTURE_LOD_EXT' : '', 'uniform mat4 viewMatrix;', 'uniform vec3 cameraPosition;', 'uniform bool isOrthographic;', parameters.toneMapping !== NoToneMapping ? '#define TONE_MAPPING' : '', parameters.toneMapping !== NoToneMapping ? ShaderChunk['tonemapping_pars_fragment'] : '', // this code is required here because it is used by the toneMapping() function defined below
-    parameters.toneMapping !== NoToneMapping ? getToneMappingFunction('toneMapping', parameters.toneMapping) : '', parameters.dithering ? '#define DITHERING' : '', ShaderChunk['encodings_pars_fragment'], // this code is required here because it is used by the various encoding/decoding function defined below
-    parameters.map ? getTexelDecodingFunction('mapTexelToLinear', parameters.mapEncoding) : '', parameters.matcap ? getTexelDecodingFunction('matcapTexelToLinear', parameters.matcapEncoding) : '', parameters.envMap ? getTexelDecodingFunction('envMapTexelToLinear', parameters.envMapEncoding) : '', parameters.emissiveMap ? getTexelDecodingFunction('emissiveMapTexelToLinear', parameters.emissiveMapEncoding) : '', parameters.lightMap ? getTexelDecodingFunction('lightMapTexelToLinear', parameters.lightMapEncoding) : '', getTexelEncodingFunction('linearToOutputTexel', parameters.outputEncoding), parameters.depthPacking ? '#define DEPTH_PACKING ' + parameters.depthPacking : '', '\n'].filter(filterEmptyLine).join('\n');
-  }
-
-  vertexShader = resolveIncludes(vertexShader);
-  vertexShader = replaceLightNums(vertexShader, parameters);
-  vertexShader = replaceClippingPlaneNums(vertexShader, parameters);
-  fragmentShader = resolveIncludes(fragmentShader);
-  fragmentShader = replaceLightNums(fragmentShader, parameters);
-  fragmentShader = replaceClippingPlaneNums(fragmentShader, parameters);
-  vertexShader = unrollLoops(vertexShader);
-  fragmentShader = unrollLoops(fragmentShader);
-
-  if (parameters.isWebGL2 && parameters.isRawShaderMaterial !== true) {
-    // GLSL 3.0 conversion for built-in materials and ShaderMaterial
-    versionString = '#version 300 es\n';
-    prefixVertex = ['#define attribute in', '#define varying out', '#define texture2D texture'].join('\n') + '\n' + prefixVertex;
-    prefixFragment = ['#define varying in', parameters.glslVersion === GLSL3 ? '' : 'out highp vec4 pc_fragColor;', parameters.glslVersion === GLSL3 ? '' : '#define gl_FragColor pc_fragColor', '#define gl_FragDepthEXT gl_FragDepth', '#define texture2D texture', '#define textureCube texture', '#define texture2DProj textureProj', '#define texture2DLodEXT textureLod', '#define texture2DProjLodEXT textureProjLod', '#define textureCubeLodEXT textureLod', '#define texture2DGradEXT textureGrad', '#define texture2DProjGradEXT textureProjGrad', '#define textureCubeGradEXT textureGrad'].join('\n') + '\n' + prefixFragment;
-  }
-
-  const vertexGlsl = versionString + prefixVertex + vertexShader;
-  const fragmentGlsl = versionString + prefixFragment + fragmentShader; // console.log( '*VERTEX*', vertexGlsl );
-  // console.log( '*FRAGMENT*', fragmentGlsl );
-
-  const glVertexShader = WebGLShader(gl, 35633, vertexGlsl);
-  const glFragmentShader = WebGLShader(gl, 35632, fragmentGlsl);
-  gl.attachShader(program, glVertexShader);
-  gl.attachShader(program, glFragmentShader); // Force a particular attribute to index 0.
-
-  if (parameters.index0AttributeName !== undefined) {
-    gl.bindAttribLocation(program, 0, parameters.index0AttributeName);
-  } else if (parameters.morphTargets === true) {
-    // programs with morphTargets displace position out of attribute 0
-    gl.bindAttribLocation(program, 0, 'position');
-  }
-
-  gl.linkProgram(program); // check for link errors
-
-  if (renderer.debug.checkShaderErrors) {
-    const programLog = gl.getProgramInfoLog(program).trim();
-    const vertexLog = gl.getShaderInfoLog(glVertexShader).trim();
-    const fragmentLog = gl.getShaderInfoLog(glFragmentShader).trim();
-    let runnable = true;
-    let haveDiagnostics = true;
-
-    if (gl.getProgramParameter(program, 35714) === false) {
-      runnable = false;
-      const vertexErrors = getShaderErrors(gl, glVertexShader, 'vertex');
-      const fragmentErrors = getShaderErrors(gl, glFragmentShader, 'fragment');
-      console.error('THREE.WebGLProgram: shader error: ', gl.getError(), '35715', gl.getProgramParameter(program, 35715), 'gl.getProgramInfoLog', programLog, vertexErrors, fragmentErrors);
-    } else if (programLog !== '') {
-      console.warn('THREE.WebGLProgram: gl.getProgramInfoLog()', programLog);
-    } else if (vertexLog === '' || fragmentLog === '') {
-      haveDiagnostics = false;
-    }
-
-    if (haveDiagnostics) {
-      this.diagnostics = {
-        runnable: runnable,
-        programLog: programLog,
-        vertexShader: {
-          log: vertexLog,
-          prefix: prefixVertex
-        },
-        fragmentShader: {
-          log: fragmentLog,
-          prefix: prefixFragment
-        }
-      };
-    }
-  } // Clean up
-  // Crashes in iOS9 and iOS10. #18402
-  // gl.detachShader( program, glVertexShader );
-  // gl.detachShader( program, glFragmentShader );
-
-
-  gl.deleteShader(glVertexShader);
-  gl.deleteShader(glFragmentShader); // set up caching for uniform locations
-
-  let cachedUniforms;
-
-  this.getUniforms = function () {
-    if (cachedUniforms === undefined) {
-      cachedUniforms = new WebGLUniforms(gl, program);
-    }
-
-    return cachedUniforms;
-  }; // set up caching for attribute locations
-
-
-  let cachedAttributes;
-
-  this.getAttributes = function () {
-    if (cachedAttributes === undefined) {
-      cachedAttributes = fetchAttributeLocations(gl, program);
-    }
-
-    return cachedAttributes;
-  }; // free resource
-
-
-  this.destroy = function () {
-    bindingStates.releaseStatesOfProgram(this);
-    gl.deleteProgram(program);
-    this.program = undefined;
-  }; //
-
-
-  this.name = parameters.shaderName;
-  this.id = programIdCount++;
-  this.cacheKey = cacheKey;
-  this.usedTimes = 1;
-  this.program = program;
-  this.vertexShader = glVertexShader;
-  this.fragmentShader = glFragmentShader;
-  return this;
-}
-
-function WebGLPrograms(renderer, cubemaps, extensions, capabilities, bindingStates, clipping) {
-  const programs = [];
-  const isWebGL2 = capabilities.isWebGL2;
-  const logarithmicDepthBuffer = capabilities.logarithmicDepthBuffer;
-  const floatVertexTextures = capabilities.floatVertexTextures;
-  const maxVertexUniforms = capabilities.maxVertexUniforms;
-  const vertexTextures = capabilities.vertexTextures;
-  let precision = capabilities.precision;
-  const shaderIDs = {
-    MeshDepthMaterial: 'depth',
-    MeshDistanceMaterial: 'distanceRGBA',
-    MeshNormalMaterial: 'normal',
-    MeshBasicMaterial: 'basic',
-    MeshLambertMaterial: 'lambert',
-    MeshPhongMaterial: 'phong',
-    MeshToonMaterial: 'toon',
-    MeshStandardMaterial: 'physical',
-    MeshPhysicalMaterial: 'physical',
-    MeshMatcapMaterial: 'matcap',
-    LineBasicMaterial: 'basic',
-    LineDashedMaterial: 'dashed',
-    PointsMaterial: 'points',
-    ShadowMaterial: 'shadow',
-    SpriteMaterial: 'sprite'
-  };
-  const parameterNames = ['precision', 'isWebGL2', 'supportsVertexTextures', 'outputEncoding', 'instancing', 'instancingColor', 'map', 'mapEncoding', 'matcap', 'matcapEncoding', 'envMap', 'envMapMode', 'envMapEncoding', 'envMapCubeUV', 'lightMap', 'lightMapEncoding', 'aoMap', 'emissiveMap', 'emissiveMapEncoding', 'bumpMap', 'normalMap', 'objectSpaceNormalMap', 'tangentSpaceNormalMap', 'clearcoatMap', 'clearcoatRoughnessMap', 'clearcoatNormalMap', 'displacementMap', 'specularMap', 'roughnessMap', 'metalnessMap', 'gradientMap', 'alphaMap', 'combine', 'vertexColors', 'vertexTangents', 'vertexUvs', 'uvsVertexOnly', 'fog', 'useFog', 'fogExp2', 'flatShading', 'sizeAttenuation', 'logarithmicDepthBuffer', 'skinning', 'maxBones', 'useVertexTexture', 'morphTargets', 'morphNormals', 'maxMorphTargets', 'maxMorphNormals', 'premultipliedAlpha', 'numDirLights', 'numPointLights', 'numSpotLights', 'numHemiLights', 'numRectAreaLights', 'numDirLightShadows', 'numPointLightShadows', 'numSpotLightShadows', 'shadowMapEnabled', 'shadowMapType', 'toneMapping', 'physicallyCorrectLights', 'alphaTest', 'doubleSided', 'flipSided', 'numClippingPlanes', 'numClipIntersection', 'depthPacking', 'dithering', 'sheen', 'transmissionMap'];
-
-  function getMaxBones(object) {
-    const skeleton = object.skeleton;
-    const bones = skeleton.bones;
-
-    if (floatVertexTextures) {
-      return 1024;
-    } else {
-      // default for when object is not specified
-      // ( for example when prebuilding shader to be used with multiple objects )
-      //
-      //  - leave some extra space for other uniforms
-      //  - limit here is ANGLE's 254 max uniform vectors
-      //    (up to 54 should be safe)
-      const nVertexUniforms = maxVertexUniforms;
-      const nVertexMatrices = Math.floor((nVertexUniforms - 20) / 4);
-      const maxBones = Math.min(nVertexMatrices, bones.length);
-
-      if (maxBones < bones.length) {
-        console.warn('THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.');
-        return 0;
-      }
-
-      return maxBones;
-    }
-  }
-
-  function getTextureEncodingFromMap(map) {
-    let encoding;
-
-    if (map && map.isTexture) {
-      encoding = map.encoding;
-    } else if (map && map.isWebGLRenderTarget) {
-      console.warn('THREE.WebGLPrograms.getTextureEncodingFromMap: don\'t use render targets as textures. Use their .texture property instead.');
-      encoding = map.texture.encoding;
-    } else {
-      encoding = LinearEncoding;
-    }
-
-    return encoding;
-  }
-
-  function getParameters(material, lights, shadows, scene, object) {
-    const fog = scene.fog;
-    const environment = material.isMeshStandardMaterial ? scene.environment : null;
-    const envMap = cubemaps.get(material.envMap || environment);
-    const shaderID = shaderIDs[material.type]; // heuristics to create shader parameters according to lights in the scene
-    // (not to blow over maxLights budget)
-
-    const maxBones = object.isSkinnedMesh ? getMaxBones(object) : 0;
-
-    if (material.precision !== null) {
-      precision = capabilities.getMaxPrecision(material.precision);
-
-      if (precision !== material.precision) {
-        console.warn('THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.');
-      }
-    }
-
-    let vertexShader, fragmentShader;
-
-    if (shaderID) {
-      const shader = ShaderLib[shaderID];
-      vertexShader = shader.vertexShader;
-      fragmentShader = shader.fragmentShader;
-    } else {
-      vertexShader = material.vertexShader;
-      fragmentShader = material.fragmentShader;
-    }
-
-    const currentRenderTarget = renderer.getRenderTarget();
-    const parameters = {
-      isWebGL2: isWebGL2,
-      shaderID: shaderID,
-      shaderName: material.type,
-      vertexShader: vertexShader,
-      fragmentShader: fragmentShader,
-      defines: material.defines,
-      isRawShaderMaterial: material.isRawShaderMaterial === true,
-      glslVersion: material.glslVersion,
-      precision: precision,
-      instancing: object.isInstancedMesh === true,
-      instancingColor: object.isInstancedMesh === true && object.instanceColor !== null,
-      supportsVertexTextures: vertexTextures,
-      outputEncoding: currentRenderTarget !== null ? getTextureEncodingFromMap(currentRenderTarget.texture) : renderer.outputEncoding,
-      map: !!material.map,
-      mapEncoding: getTextureEncodingFromMap(material.map),
-      matcap: !!material.matcap,
-      matcapEncoding: getTextureEncodingFromMap(material.matcap),
-      envMap: !!envMap,
-      envMapMode: envMap && envMap.mapping,
-      envMapEncoding: getTextureEncodingFromMap(envMap),
-      envMapCubeUV: !!envMap && (envMap.mapping === CubeUVReflectionMapping || envMap.mapping === CubeUVRefractionMapping),
-      lightMap: !!material.lightMap,
-      lightMapEncoding: getTextureEncodingFromMap(material.lightMap),
-      aoMap: !!material.aoMap,
-      emissiveMap: !!material.emissiveMap,
-      emissiveMapEncoding: getTextureEncodingFromMap(material.emissiveMap),
-      bumpMap: !!material.bumpMap,
-      normalMap: !!material.normalMap,
-      objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,
-      tangentSpaceNormalMap: material.normalMapType === TangentSpaceNormalMap,
-      clearcoatMap: !!material.clearcoatMap,
-      clearcoatRoughnessMap: !!material.clearcoatRoughnessMap,
-      clearcoatNormalMap: !!material.clearcoatNormalMap,
-      displacementMap: !!material.displacementMap,
-      roughnessMap: !!material.roughnessMap,
-      metalnessMap: !!material.metalnessMap,
-      specularMap: !!material.specularMap,
-      alphaMap: !!material.alphaMap,
-      gradientMap: !!material.gradientMap,
-      sheen: !!material.sheen,
-      transmissionMap: !!material.transmissionMap,
-      combine: material.combine,
-      vertexTangents: material.normalMap && material.vertexTangents,
-      vertexColors: material.vertexColors,
-      vertexUvs: !!material.map || !!material.bumpMap || !!material.normalMap || !!material.specularMap || !!material.alphaMap || !!material.emissiveMap || !!material.roughnessMap || !!material.metalnessMap || !!material.clearcoatMap || !!material.clearcoatRoughnessMap || !!material.clearcoatNormalMap || !!material.displacementMap || !!material.transmissionMap,
-      uvsVertexOnly: !(!!material.map || !!material.bumpMap || !!material.normalMap || !!material.specularMap || !!material.alphaMap || !!material.emissiveMap || !!material.roughnessMap || !!material.metalnessMap || !!material.clearcoatNormalMap || !!material.transmissionMap) && !!material.displacementMap,
-      fog: !!fog,
-      useFog: material.fog,
-      fogExp2: fog && fog.isFogExp2,
-      flatShading: !!material.flatShading,
-      sizeAttenuation: material.sizeAttenuation,
-      logarithmicDepthBuffer: logarithmicDepthBuffer,
-      skinning: material.skinning && maxBones > 0,
-      maxBones: maxBones,
-      useVertexTexture: floatVertexTextures,
-      morphTargets: material.morphTargets,
-      morphNormals: material.morphNormals,
-      maxMorphTargets: renderer.maxMorphTargets,
-      maxMorphNormals: renderer.maxMorphNormals,
-      numDirLights: lights.directional.length,
-      numPointLights: lights.point.length,
-      numSpotLights: lights.spot.length,
-      numRectAreaLights: lights.rectArea.length,
-      numHemiLights: lights.hemi.length,
-      numDirLightShadows: lights.directionalShadowMap.length,
-      numPointLightShadows: lights.pointShadowMap.length,
-      numSpotLightShadows: lights.spotShadowMap.length,
-      numClippingPlanes: clipping.numPlanes,
-      numClipIntersection: clipping.numIntersection,
-      dithering: material.dithering,
-      shadowMapEnabled: renderer.shadowMap.enabled && shadows.length > 0,
-      shadowMapType: renderer.shadowMap.type,
-      toneMapping: material.toneMapped ? renderer.toneMapping : NoToneMapping,
-      physicallyCorrectLights: renderer.physicallyCorrectLights,
-      premultipliedAlpha: material.premultipliedAlpha,
-      alphaTest: material.alphaTest,
-      doubleSided: material.side === DoubleSide,
-      flipSided: material.side === BackSide,
-      depthPacking: material.depthPacking !== undefined ? material.depthPacking : false,
-      index0AttributeName: material.index0AttributeName,
-      extensionDerivatives: material.extensions && material.extensions.derivatives,
-      extensionFragDepth: material.extensions && material.extensions.fragDepth,
-      extensionDrawBuffers: material.extensions && material.extensions.drawBuffers,
-      extensionShaderTextureLOD: material.extensions && material.extensions.shaderTextureLOD,
-      rendererExtensionFragDepth: isWebGL2 || extensions.has('EXT_frag_depth'),
-      rendererExtensionDrawBuffers: isWebGL2 || extensions.has('WEBGL_draw_buffers'),
-      rendererExtensionShaderTextureLod: isWebGL2 || extensions.has('EXT_shader_texture_lod'),
-      customProgramCacheKey: material.customProgramCacheKey()
-    };
-    return parameters;
-  }
-
-  function getProgramCacheKey(parameters) {
-    const array = [];
-
-    if (parameters.shaderID) {
-      array.push(parameters.shaderID);
-    } else {
-      array.push(parameters.fragmentShader);
-      array.push(parameters.vertexShader);
-    }
-
-    if (parameters.defines !== undefined) {
-      for (const name in parameters.defines) {
-        array.push(name);
-        array.push(parameters.defines[name]);
-      }
-    }
-
-    if (parameters.isRawShaderMaterial === false) {
-      for (let i = 0; i < parameterNames.length; i++) {
-        array.push(parameters[parameterNames[i]]);
-      }
-
-      array.push(renderer.outputEncoding);
-      array.push(renderer.gammaFactor);
-    }
-
-    array.push(parameters.customProgramCacheKey);
-    return array.join();
-  }
-
-  function getUniforms(material) {
-    const shaderID = shaderIDs[material.type];
-    let uniforms;
-
-    if (shaderID) {
-      const shader = ShaderLib[shaderID];
-      uniforms = UniformsUtils.clone(shader.uniforms);
-    } else {
-      uniforms = material.uniforms;
-    }
-
-    return uniforms;
-  }
-
-  function acquireProgram(parameters, cacheKey) {
-    let program; // Check if code has been already compiled
-
-    for (let p = 0, pl = programs.length; p < pl; p++) {
-      const preexistingProgram = programs[p];
-
-      if (preexistingProgram.cacheKey === cacheKey) {
-        program = preexistingProgram;
-        ++program.usedTimes;
-        break;
-      }
-    }
-
-    if (program === undefined) {
-      program = new WebGLProgram(renderer, cacheKey, parameters, bindingStates);
-      programs.push(program);
-    }
-
-    return program;
-  }
-
-  function releaseProgram(program) {
-    if (--program.usedTimes === 0) {
-      // Remove from unordered set
-      const i = programs.indexOf(program);
-      programs[i] = programs[programs.length - 1];
-      programs.pop(); // Free WebGL resources
-
-      program.destroy();
-    }
-  }
-
-  return {
-    getParameters: getParameters,
-    getProgramCacheKey: getProgramCacheKey,
-    getUniforms: getUniforms,
-    acquireProgram: acquireProgram,
-    releaseProgram: releaseProgram,
-    // Exposed for resource monitoring & error feedback via renderer.info:
-    programs: programs
-  };
-}
-
-function WebGLProperties() {
-  let properties = new WeakMap();
-
-  function get(object) {
-    let map = properties.get(object);
-
-    if (map === undefined) {
-      map = {};
-      properties.set(object, map);
-    }
-
-    return map;
-  }
-
-  function remove(object) {
-    properties.delete(object);
-  }
-
-  function update(object, key, value) {
-    properties.get(object)[key] = value;
-  }
-
-  function dispose() {
-    properties = new WeakMap();
-  }
-
-  return {
-    get: get,
-    remove: remove,
-    update: update,
-    dispose: dispose
-  };
-}
-
-function painterSortStable(a, b) {
-  if (a.groupOrder !== b.groupOrder) {
-    return a.groupOrder - b.groupOrder;
-  } else if (a.renderOrder !== b.renderOrder) {
-    return a.renderOrder - b.renderOrder;
-  } else if (a.program !== b.program) {
-    return a.program.id - b.program.id;
-  } else if (a.material.id !== b.material.id) {
-    return a.material.id - b.material.id;
-  } else if (a.z !== b.z) {
-    return a.z - b.z;
-  } else {
-    return a.id - b.id;
-  }
-}
-
-function reversePainterSortStable(a, b) {
-  if (a.groupOrder !== b.groupOrder) {
-    return a.groupOrder - b.groupOrder;
-  } else if (a.renderOrder !== b.renderOrder) {
-    return a.renderOrder - b.renderOrder;
-  } else if (a.z !== b.z) {
-    return b.z - a.z;
-  } else {
-    return a.id - b.id;
-  }
-}
-
-function WebGLRenderList(properties) {
-  const renderItems = [];
-  let renderItemsIndex = 0;
-  const opaque = [];
-  const transparent = [];
-  const defaultProgram = {
-    id: -1
-  };
-
-  function init() {
-    renderItemsIndex = 0;
-    opaque.length = 0;
-    transparent.length = 0;
-  }
-
-  function getNextRenderItem(object, geometry, material, groupOrder, z, group) {
-    let renderItem = renderItems[renderItemsIndex];
-    const materialProperties = properties.get(material);
-
-    if (renderItem === undefined) {
-      renderItem = {
-        id: object.id,
-        object: object,
-        geometry: geometry,
-        material: material,
-        program: materialProperties.program || defaultProgram,
-        groupOrder: groupOrder,
-        renderOrder: object.renderOrder,
-        z: z,
-        group: group
-      };
-      renderItems[renderItemsIndex] = renderItem;
-    } else {
-      renderItem.id = object.id;
-      renderItem.object = object;
-      renderItem.geometry = geometry;
-      renderItem.material = material;
-      renderItem.program = materialProperties.program || defaultProgram;
-      renderItem.groupOrder = groupOrder;
-      renderItem.renderOrder = object.renderOrder;
-      renderItem.z = z;
-      renderItem.group = group;
-    }
-
-    renderItemsIndex++;
-    return renderItem;
-  }
-
-  function push(object, geometry, material, groupOrder, z, group) {
-    const renderItem = getNextRenderItem(object, geometry, material, groupOrder, z, group);
-    (material.transparent === true ? transparent : opaque).push(renderItem);
-  }
-
-  function unshift(object, geometry, material, groupOrder, z, group) {
-    const renderItem = getNextRenderItem(object, geometry, material, groupOrder, z, group);
-    (material.transparent === true ? transparent : opaque).unshift(renderItem);
-  }
-
-  function sort(customOpaqueSort, customTransparentSort) {
-    if (opaque.length > 1) opaque.sort(customOpaqueSort || painterSortStable);
-    if (transparent.length > 1) transparent.sort(customTransparentSort || reversePainterSortStable);
-  }
-
-  function finish() {
-    // Clear references from inactive renderItems in the list
-    for (let i = renderItemsIndex, il = renderItems.length; i < il; i++) {
-      const renderItem = renderItems[i];
-      if (renderItem.id === null) break;
-      renderItem.id = null;
-      renderItem.object = null;
-      renderItem.geometry = null;
-      renderItem.material = null;
-      renderItem.program = null;
-      renderItem.group = null;
-    }
-  }
-
-  return {
-    opaque: opaque,
-    transparent: transparent,
-    init: init,
-    push: push,
-    unshift: unshift,
-    finish: finish,
-    sort: sort
-  };
-}
-
-function WebGLRenderLists(properties) {
-  let lists = new WeakMap();
-
-  function get(scene, renderCallDepth) {
-    let list;
-
-    if (lists.has(scene) === false) {
-      list = new WebGLRenderList(properties);
-      lists.set(scene, [list]);
-    } else {
-      if (renderCallDepth >= lists.get(scene).length) {
-        list = new WebGLRenderList(properties);
-        lists.get(scene).push(list);
-      } else {
-        list = lists.get(scene)[renderCallDepth];
-      }
-    }
-
-    return list;
-  }
-
-  function dispose() {
-    lists = new WeakMap();
-  }
-
-  return {
-    get: get,
-    dispose: dispose
-  };
-}
-
-function UniformsCache() {
-  const lights = {};
-  return {
-    get: function (light) {
-      if (lights[light.id] !== undefined) {
-        return lights[light.id];
-      }
-
-      let uniforms;
-
-      switch (light.type) {
-        case 'DirectionalLight':
-          uniforms = {
-            direction: new Vector3(),
-            color: new Color()
-          };
-          break;
-
-        case 'SpotLight':
-          uniforms = {
-            position: new Vector3(),
-            direction: new Vector3(),
-            color: new Color(),
-            distance: 0,
-            coneCos: 0,
-            penumbraCos: 0,
-            decay: 0
-          };
-          break;
-
-        case 'PointLight':
-          uniforms = {
-            position: new Vector3(),
-            color: new Color(),
-            distance: 0,
-            decay: 0
-          };
-          break;
-
-        case 'HemisphereLight':
-          uniforms = {
-            direction: new Vector3(),
-            skyColor: new Color(),
-            groundColor: new Color()
-          };
-          break;
-
-        case 'RectAreaLight':
-          uniforms = {
-            color: new Color(),
-            position: new Vector3(),
-            halfWidth: new Vector3(),
-            halfHeight: new Vector3()
-          };
-          break;
-      }
-
-      lights[light.id] = uniforms;
-      return uniforms;
-    }
-  };
-}
-
-function ShadowUniformsCache() {
-  const lights = {};
-  return {
-    get: function (light) {
-      if (lights[light.id] !== undefined) {
-        return lights[light.id];
-      }
-
-      let uniforms;
-
-      switch (light.type) {
-        case 'DirectionalLight':
-          uniforms = {
-            shadowBias: 0,
-            shadowNormalBias: 0,
-            shadowRadius: 1,
-            shadowMapSize: new Vector2()
-          };
-          break;
-
-        case 'SpotLight':
-          uniforms = {
-            shadowBias: 0,
-            shadowNormalBias: 0,
-            shadowRadius: 1,
-            shadowMapSize: new Vector2()
-          };
-          break;
-
-        case 'PointLight':
-          uniforms = {
-            shadowBias: 0,
-            shadowNormalBias: 0,
-            shadowRadius: 1,
-            shadowMapSize: new Vector2(),
-            shadowCameraNear: 1,
-            shadowCameraFar: 1000
-          };
-          break;
-        // TODO (abelnation): set RectAreaLight shadow uniforms
-      }
-
-      lights[light.id] = uniforms;
-      return uniforms;
-    }
-  };
-}
-
-let nextVersion = 0;
-
-function shadowCastingLightsFirst(lightA, lightB) {
-  return (lightB.castShadow ? 1 : 0) - (lightA.castShadow ? 1 : 0);
-}
-
-function WebGLLights(extensions, capabilities) {
-  const cache = new UniformsCache();
-  const shadowCache = ShadowUniformsCache();
-  const state = {
-    version: 0,
-    hash: {
-      directionalLength: -1,
-      pointLength: -1,
-      spotLength: -1,
-      rectAreaLength: -1,
-      hemiLength: -1,
-      numDirectionalShadows: -1,
-      numPointShadows: -1,
-      numSpotShadows: -1
-    },
-    ambient: [0, 0, 0],
-    probe: [],
-    directional: [],
-    directionalShadow: [],
-    directionalShadowMap: [],
-    directionalShadowMatrix: [],
-    spot: [],
-    spotShadow: [],
-    spotShadowMap: [],
-    spotShadowMatrix: [],
-    rectArea: [],
-    rectAreaLTC1: null,
-    rectAreaLTC2: null,
-    point: [],
-    pointShadow: [],
-    pointShadowMap: [],
-    pointShadowMatrix: [],
-    hemi: []
-  };
-
-  for (let i = 0; i < 9; i++) state.probe.push(new Vector3());
-
-  const vector3 = new Vector3();
-  const matrix4 = new Matrix4();
-  const matrix42 = new Matrix4();
-
-  function setup(lights) {
-    let r = 0,
-        g = 0,
-        b = 0;
-
-    for (let i = 0; i < 9; i++) state.probe[i].set(0, 0, 0);
-
-    let directionalLength = 0;
-    let pointLength = 0;
-    let spotLength = 0;
-    let rectAreaLength = 0;
-    let hemiLength = 0;
-    let numDirectionalShadows = 0;
-    let numPointShadows = 0;
-    let numSpotShadows = 0;
-    lights.sort(shadowCastingLightsFirst);
-
-    for (let i = 0, l = lights.length; i < l; i++) {
-      const light = lights[i];
-      const color = light.color;
-      const intensity = light.intensity;
-      const distance = light.distance;
-      const shadowMap = light.shadow && light.shadow.map ? light.shadow.map.texture : null;
-
-      if (light.isAmbientLight) {
-        r += color.r * intensity;
-        g += color.g * intensity;
-        b += color.b * intensity;
-      } else if (light.isLightProbe) {
-        for (let j = 0; j < 9; j++) {
-          state.probe[j].addScaledVector(light.sh.coefficients[j], intensity);
-        }
-      } else if (light.isDirectionalLight) {
-        const uniforms = cache.get(light);
-        uniforms.color.copy(light.color).multiplyScalar(light.intensity);
-
-        if (light.castShadow) {
-          const shadow = light.shadow;
-          const shadowUniforms = shadowCache.get(light);
-          shadowUniforms.shadowBias = shadow.bias;
-          shadowUniforms.shadowNormalBias = shadow.normalBias;
-          shadowUniforms.shadowRadius = shadow.radius;
-          shadowUniforms.shadowMapSize = shadow.mapSize;
-          state.directionalShadow[directionalLength] = shadowUniforms;
-          state.directionalShadowMap[directionalLength] = shadowMap;
-          state.directionalShadowMatrix[directionalLength] = light.shadow.matrix;
-          numDirectionalShadows++;
-        }
-
-        state.directional[directionalLength] = uniforms;
-        directionalLength++;
-      } else if (light.isSpotLight) {
-        const uniforms = cache.get(light);
-        uniforms.position.setFromMatrixPosition(light.matrixWorld);
-        uniforms.color.copy(color).multiplyScalar(intensity);
-        uniforms.distance = distance;
-        uniforms.coneCos = Math.cos(light.angle);
-        uniforms.penumbraCos = Math.cos(light.angle * (1 - light.penumbra));
-        uniforms.decay = light.decay;
-
-        if (light.castShadow) {
-          const shadow = light.shadow;
-          const shadowUniforms = shadowCache.get(light);
-          shadowUniforms.shadowBias = shadow.bias;
-          shadowUniforms.shadowNormalBias = shadow.normalBias;
-          shadowUniforms.shadowRadius = shadow.radius;
-          shadowUniforms.shadowMapSize = shadow.mapSize;
-          state.spotShadow[spotLength] = shadowUniforms;
-          state.spotShadowMap[spotLength] = shadowMap;
-          state.spotShadowMatrix[spotLength] = light.shadow.matrix;
-          numSpotShadows++;
-        }
-
-        state.spot[spotLength] = uniforms;
-        spotLength++;
-      } else if (light.isRectAreaLight) {
-        const uniforms = cache.get(light); // (a) intensity is the total visible light emitted
-        //uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );
-        // (b) intensity is the brightness of the light
-
-        uniforms.color.copy(color).multiplyScalar(intensity);
-        uniforms.halfWidth.set(light.width * 0.5, 0.0, 0.0);
-        uniforms.halfHeight.set(0.0, light.height * 0.5, 0.0);
-        state.rectArea[rectAreaLength] = uniforms;
-        rectAreaLength++;
-      } else if (light.isPointLight) {
-        const uniforms = cache.get(light);
-        uniforms.color.copy(light.color).multiplyScalar(light.intensity);
-        uniforms.distance = light.distance;
-        uniforms.decay = light.decay;
-
-        if (light.castShadow) {
-          const shadow = light.shadow;
-          const shadowUniforms = shadowCache.get(light);
-          shadowUniforms.shadowBias = shadow.bias;
-          shadowUniforms.shadowNormalBias = shadow.normalBias;
-          shadowUniforms.shadowRadius = shadow.radius;
-          shadowUniforms.shadowMapSize = shadow.mapSize;
-          shadowUniforms.shadowCameraNear = shadow.camera.near;
-          shadowUniforms.shadowCameraFar = shadow.camera.far;
-          state.pointShadow[pointLength] = shadowUniforms;
-          state.pointShadowMap[pointLength] = shadowMap;
-          state.pointShadowMatrix[pointLength] = light.shadow.matrix;
-          numPointShadows++;
-        }
-
-        state.point[pointLength] = uniforms;
-        pointLength++;
-      } else if (light.isHemisphereLight) {
-        const uniforms = cache.get(light);
-        uniforms.skyColor.copy(light.color).multiplyScalar(intensity);
-        uniforms.groundColor.copy(light.groundColor).multiplyScalar(intensity);
-        state.hemi[hemiLength] = uniforms;
-        hemiLength++;
-      }
-    }
-
-    if (rectAreaLength > 0) {
-      if (capabilities.isWebGL2) {
-        // WebGL 2
-        state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
-        state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;
-      } else {
-        // WebGL 1
-        if (extensions.has('OES_texture_float_linear') === true) {
-          state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
-          state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;
-        } else if (extensions.has('OES_texture_half_float_linear') === true) {
-          state.rectAreaLTC1 = UniformsLib.LTC_HALF_1;
-          state.rectAreaLTC2 = UniformsLib.LTC_HALF_2;
-        } else {
-          console.error('THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.');
-        }
-      }
-    }
-
-    state.ambient[0] = r;
-    state.ambient[1] = g;
-    state.ambient[2] = b;
-    const hash = state.hash;
-
-    if (hash.directionalLength !== directionalLength || hash.pointLength !== pointLength || hash.spotLength !== spotLength || hash.rectAreaLength !== rectAreaLength || hash.hemiLength !== hemiLength || hash.numDirectionalShadows !== numDirectionalShadows || hash.numPointShadows !== numPointShadows || hash.numSpotShadows !== numSpotShadows) {
-      state.directional.length = directionalLength;
-      state.spot.length = spotLength;
-      state.rectArea.length = rectAreaLength;
-      state.point.length = pointLength;
-      state.hemi.length = hemiLength;
-      state.directionalShadow.length = numDirectionalShadows;
-      state.directionalShadowMap.length = numDirectionalShadows;
-      state.pointShadow.length = numPointShadows;
-      state.pointShadowMap.length = numPointShadows;
-      state.spotShadow.length = numSpotShadows;
-      state.spotShadowMap.length = numSpotShadows;
-      state.directionalShadowMatrix.length = numDirectionalShadows;
-      state.pointShadowMatrix.length = numPointShadows;
-      state.spotShadowMatrix.length = numSpotShadows;
-      hash.directionalLength = directionalLength;
-      hash.pointLength = pointLength;
-      hash.spotLength = spotLength;
-      hash.rectAreaLength = rectAreaLength;
-      hash.hemiLength = hemiLength;
-      hash.numDirectionalShadows = numDirectionalShadows;
-      hash.numPointShadows = numPointShadows;
-      hash.numSpotShadows = numSpotShadows;
-      state.version = nextVersion++;
-    }
-  }
-
-  function setupView(lights, camera) {
-    let directionalLength = 0;
-    let pointLength = 0;
-    let spotLength = 0;
-    let rectAreaLength = 0;
-    let hemiLength = 0;
-    const viewMatrix = camera.matrixWorldInverse;
-
-    for (let i = 0, l = lights.length; i < l; i++) {
-      const light = lights[i];
-
-      if (light.isDirectionalLight) {
-        const uniforms = state.directional[directionalLength];
-        uniforms.direction.setFromMatrixPosition(light.matrixWorld);
-        vector3.setFromMatrixPosition(light.target.matrixWorld);
-        uniforms.direction.sub(vector3);
-        uniforms.direction.transformDirection(viewMatrix);
-        directionalLength++;
-      } else if (light.isSpotLight) {
-        const uniforms = state.spot[spotLength];
-        uniforms.position.setFromMatrixPosition(light.matrixWorld);
-        uniforms.position.applyMatrix4(viewMatrix);
-        uniforms.direction.setFromMatrixPosition(light.matrixWorld);
-        vector3.setFromMatrixPosition(light.target.matrixWorld);
-        uniforms.direction.sub(vector3);
-        uniforms.direction.transformDirection(viewMatrix);
-        spotLength++;
-      } else if (light.isRectAreaLight) {
-        const uniforms = state.rectArea[rectAreaLength];
-        uniforms.position.setFromMatrixPosition(light.matrixWorld);
-        uniforms.position.applyMatrix4(viewMatrix); // extract local rotation of light to derive width/height half vectors
-
-        matrix42.identity();
-        matrix4.copy(light.matrixWorld);
-        matrix4.premultiply(viewMatrix);
-        matrix42.extractRotation(matrix4);
-        uniforms.halfWidth.set(light.width * 0.5, 0.0, 0.0);
-        uniforms.halfHeight.set(0.0, light.height * 0.5, 0.0);
-        uniforms.halfWidth.applyMatrix4(matrix42);
-        uniforms.halfHeight.applyMatrix4(matrix42);
-        rectAreaLength++;
-      } else if (light.isPointLight) {
-        const uniforms = state.point[pointLength];
-        uniforms.position.setFromMatrixPosition(light.matrixWorld);
-        uniforms.position.applyMatrix4(viewMatrix);
-        pointLength++;
-      } else if (light.isHemisphereLight) {
-        const uniforms = state.hemi[hemiLength];
-        uniforms.direction.setFromMatrixPosition(light.matrixWorld);
-        uniforms.direction.transformDirection(viewMatrix);
-        uniforms.direction.normalize();
-        hemiLength++;
-      }
-    }
-  }
-
-  return {
-    setup: setup,
-    setupView: setupView,
-    state: state
-  };
-}
-
-function WebGLRenderState(extensions, capabilities) {
-  const lights = new WebGLLights(extensions, capabilities);
-  const lightsArray = [];
-  const shadowsArray = [];
-
-  function init() {
-    lightsArray.length = 0;
-    shadowsArray.length = 0;
-  }
-
-  function pushLight(light) {
-    lightsArray.push(light);
-  }
-
-  function pushShadow(shadowLight) {
-    shadowsArray.push(shadowLight);
-  }
-
-  function setupLights() {
-    lights.setup(lightsArray);
-  }
-
-  function setupLightsView(camera) {
-    lights.setupView(lightsArray, camera);
-  }
-
-  const state = {
-    lightsArray: lightsArray,
-    shadowsArray: shadowsArray,
-    lights: lights
-  };
-  return {
-    init: init,
-    state: state,
-    setupLights: setupLights,
-    setupLightsView: setupLightsView,
-    pushLight: pushLight,
-    pushShadow: pushShadow
-  };
-}
-
-function WebGLRenderStates(extensions, capabilities) {
-  let renderStates = new WeakMap();
-
-  function get(scene, renderCallDepth = 0) {
-    let renderState;
-
-    if (renderStates.has(scene) === false) {
-      renderState = new WebGLRenderState(extensions, capabilities);
-      renderStates.set(scene, [renderState]);
-    } else {
-      if (renderCallDepth >= renderStates.get(scene).length) {
-        renderState = new WebGLRenderState(extensions, capabilities);
-        renderStates.get(scene).push(renderState);
-      } else {
-        renderState = renderStates.get(scene)[renderCallDepth];
-      }
-    }
-
-    return renderState;
-  }
-
-  function dispose() {
-    renderStates = new WeakMap();
-  }
-
-  return {
-    get: get,
-    dispose: dispose
-  };
-}
-/**
- * parameters = {
- *
- *  opacity: <float>,
- *
- *  map: new THREE.Texture( <Image> ),
- *
- *  alphaMap: new THREE.Texture( <Image> ),
- *
- *  displacementMap: new THREE.Texture( <Image> ),
- *  displacementScale: <float>,
- *  displacementBias: <float>,
- *
- *  wireframe: <boolean>,
- *  wireframeLinewidth: <float>
- * }
- */
-
-
-class MeshDepthMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'MeshDepthMaterial';
-    this.depthPacking = BasicDepthPacking;
-    this.skinning = false;
-    this.morphTargets = false;
-    this.map = null;
-    this.alphaMap = null;
-    this.displacementMap = null;
-    this.displacementScale = 1;
-    this.displacementBias = 0;
-    this.wireframe = false;
-    this.wireframeLinewidth = 1;
-    this.fog = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.depthPacking = source.depthPacking;
-    this.skinning = source.skinning;
-    this.morphTargets = source.morphTargets;
-    this.map = source.map;
-    this.alphaMap = source.alphaMap;
-    this.displacementMap = source.displacementMap;
-    this.displacementScale = source.displacementScale;
-    this.displacementBias = source.displacementBias;
-    this.wireframe = source.wireframe;
-    this.wireframeLinewidth = source.wireframeLinewidth;
-    return this;
-  }
-
-}
-
-exports.MeshDepthMaterial = MeshDepthMaterial;
-MeshDepthMaterial.prototype.isMeshDepthMaterial = true;
-/**
- * parameters = {
- *
- *  referencePosition: <float>,
- *  nearDistance: <float>,
- *  farDistance: <float>,
- *
- *  skinning: <bool>,
- *  morphTargets: <bool>,
- *
- *  map: new THREE.Texture( <Image> ),
- *
- *  alphaMap: new THREE.Texture( <Image> ),
- *
- *  displacementMap: new THREE.Texture( <Image> ),
- *  displacementScale: <float>,
- *  displacementBias: <float>
- *
- * }
- */
-
-class MeshDistanceMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'MeshDistanceMaterial';
-    this.referencePosition = new Vector3();
-    this.nearDistance = 1;
-    this.farDistance = 1000;
-    this.skinning = false;
-    this.morphTargets = false;
-    this.map = null;
-    this.alphaMap = null;
-    this.displacementMap = null;
-    this.displacementScale = 1;
-    this.displacementBias = 0;
-    this.fog = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.referencePosition.copy(source.referencePosition);
-    this.nearDistance = source.nearDistance;
-    this.farDistance = source.farDistance;
-    this.skinning = source.skinning;
-    this.morphTargets = source.morphTargets;
-    this.map = source.map;
-    this.alphaMap = source.alphaMap;
-    this.displacementMap = source.displacementMap;
-    this.displacementScale = source.displacementScale;
-    this.displacementBias = source.displacementBias;
-    return this;
-  }
-
-}
-
-exports.MeshDistanceMaterial = MeshDistanceMaterial;
-MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;
-var vsm_frag = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";
-var vsm_vert = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";
-
-function WebGLShadowMap(_renderer, _objects, maxTextureSize) {
-  let _frustum = new Frustum();
-
-  const _shadowMapSize = new Vector2(),
-        _viewportSize = new Vector2(),
-        _viewport = new Vector4(),
-        _depthMaterials = [],
-        _distanceMaterials = [],
-        _materialCache = {};
-
-  const shadowSide = {
-    0: BackSide,
-    1: FrontSide,
-    2: DoubleSide
-  };
-  const shadowMaterialVertical = new ShaderMaterial({
-    defines: {
-      SAMPLE_RATE: 2.0 / 8.0,
-      HALF_SAMPLE_RATE: 1.0 / 8.0
-    },
-    uniforms: {
-      shadow_pass: {
-        value: null
-      },
-      resolution: {
-        value: new Vector2()
-      },
-      radius: {
-        value: 4.0
-      }
-    },
-    vertexShader: vsm_vert,
-    fragmentShader: vsm_frag
-  });
-  const shadowMaterialHorizontal = shadowMaterialVertical.clone();
-  shadowMaterialHorizontal.defines.HORIZONTAL_PASS = 1;
-  const fullScreenTri = new BufferGeometry();
-  fullScreenTri.setAttribute('position', new BufferAttribute(new Float32Array([-1, -1, 0.5, 3, -1, 0.5, -1, 3, 0.5]), 3));
-  const fullScreenMesh = new Mesh(fullScreenTri, shadowMaterialVertical);
-  const scope = this;
-  this.enabled = false;
-  this.autoUpdate = true;
-  this.needsUpdate = false;
-  this.type = PCFShadowMap;
-
-  this.render = function (lights, scene, camera) {
-    if (scope.enabled === false) return;
-    if (scope.autoUpdate === false && scope.needsUpdate === false) return;
-    if (lights.length === 0) return;
-
-    const currentRenderTarget = _renderer.getRenderTarget();
-
-    const activeCubeFace = _renderer.getActiveCubeFace();
-
-    const activeMipmapLevel = _renderer.getActiveMipmapLevel();
-
-    const _state = _renderer.state; // Set GL state for depth map.
-
-    _state.setBlending(NoBlending);
-
-    _state.buffers.color.setClear(1, 1, 1, 1);
-
-    _state.buffers.depth.setTest(true);
-
-    _state.setScissorTest(false); // render depth map
-
-
-    for (let i = 0, il = lights.length; i < il; i++) {
-      const light = lights[i];
-      const shadow = light.shadow;
-
-      if (shadow === undefined) {
-        console.warn('THREE.WebGLShadowMap:', light, 'has no shadow.');
-        continue;
-      }
-
-      if (shadow.autoUpdate === false && shadow.needsUpdate === false) continue;
-
-      _shadowMapSize.copy(shadow.mapSize);
-
-      const shadowFrameExtents = shadow.getFrameExtents();
-
-      _shadowMapSize.multiply(shadowFrameExtents);
-
-      _viewportSize.copy(shadow.mapSize);
-
-      if (_shadowMapSize.x > maxTextureSize || _shadowMapSize.y > maxTextureSize) {
-        if (_shadowMapSize.x > maxTextureSize) {
-          _viewportSize.x = Math.floor(maxTextureSize / shadowFrameExtents.x);
-          _shadowMapSize.x = _viewportSize.x * shadowFrameExtents.x;
-          shadow.mapSize.x = _viewportSize.x;
-        }
-
-        if (_shadowMapSize.y > maxTextureSize) {
-          _viewportSize.y = Math.floor(maxTextureSize / shadowFrameExtents.y);
-          _shadowMapSize.y = _viewportSize.y * shadowFrameExtents.y;
-          shadow.mapSize.y = _viewportSize.y;
-        }
-      }
-
-      if (shadow.map === null && !shadow.isPointLightShadow && this.type === VSMShadowMap) {
-        const pars = {
-          minFilter: LinearFilter,
-          magFilter: LinearFilter,
-          format: RGBAFormat
-        };
-        shadow.map = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
-        shadow.map.texture.name = light.name + '.shadowMap';
-        shadow.mapPass = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
-        shadow.camera.updateProjectionMatrix();
-      }
-
-      if (shadow.map === null) {
-        const pars = {
-          minFilter: NearestFilter,
-          magFilter: NearestFilter,
-          format: RGBAFormat
-        };
-        shadow.map = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
-        shadow.map.texture.name = light.name + '.shadowMap';
-        shadow.camera.updateProjectionMatrix();
-      }
-
-      _renderer.setRenderTarget(shadow.map);
-
-      _renderer.clear();
-
-      const viewportCount = shadow.getViewportCount();
-
-      for (let vp = 0; vp < viewportCount; vp++) {
-        const viewport = shadow.getViewport(vp);
-
-        _viewport.set(_viewportSize.x * viewport.x, _viewportSize.y * viewport.y, _viewportSize.x * viewport.z, _viewportSize.y * viewport.w);
-
-        _state.viewport(_viewport);
-
-        shadow.updateMatrices(light, vp);
-        _frustum = shadow.getFrustum();
-        renderObject(scene, camera, shadow.camera, light, this.type);
-      } // do blur pass for VSM
-
-
-      if (!shadow.isPointLightShadow && this.type === VSMShadowMap) {
-        VSMPass(shadow, camera);
-      }
-
-      shadow.needsUpdate = false;
-    }
-
-    scope.needsUpdate = false;
-
-    _renderer.setRenderTarget(currentRenderTarget, activeCubeFace, activeMipmapLevel);
-  };
-
-  function VSMPass(shadow, camera) {
-    const geometry = _objects.update(fullScreenMesh); // vertical pass
-
-
-    shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture;
-    shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize;
-    shadowMaterialVertical.uniforms.radius.value = shadow.radius;
-
-    _renderer.setRenderTarget(shadow.mapPass);
-
-    _renderer.clear();
-
-    _renderer.renderBufferDirect(camera, null, geometry, shadowMaterialVertical, fullScreenMesh, null); // horizontal pass
-
-
-    shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture;
-    shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize;
-    shadowMaterialHorizontal.uniforms.radius.value = shadow.radius;
-
-    _renderer.setRenderTarget(shadow.map);
-
-    _renderer.clear();
-
-    _renderer.renderBufferDirect(camera, null, geometry, shadowMaterialHorizontal, fullScreenMesh, null);
-  }
-
-  function getDepthMaterialVariant(useMorphing, useSkinning, useInstancing) {
-    const index = useMorphing << 0 | useSkinning << 1 | useInstancing << 2;
-    let material = _depthMaterials[index];
-
-    if (material === undefined) {
-      material = new MeshDepthMaterial({
-        depthPacking: RGBADepthPacking,
-        morphTargets: useMorphing,
-        skinning: useSkinning
-      });
-      _depthMaterials[index] = material;
-    }
-
-    return material;
-  }
-
-  function getDistanceMaterialVariant(useMorphing, useSkinning, useInstancing) {
-    const index = useMorphing << 0 | useSkinning << 1 | useInstancing << 2;
-    let material = _distanceMaterials[index];
-
-    if (material === undefined) {
-      material = new MeshDistanceMaterial({
-        morphTargets: useMorphing,
-        skinning: useSkinning
-      });
-      _distanceMaterials[index] = material;
-    }
-
-    return material;
-  }
-
-  function getDepthMaterial(object, geometry, material, light, shadowCameraNear, shadowCameraFar, type) {
-    let result = null;
-    let getMaterialVariant = getDepthMaterialVariant;
-    let customMaterial = object.customDepthMaterial;
-
-    if (light.isPointLight === true) {
-      getMaterialVariant = getDistanceMaterialVariant;
-      customMaterial = object.customDistanceMaterial;
-    }
-
-    if (customMaterial === undefined) {
-      let useMorphing = false;
-
-      if (material.morphTargets === true) {
-        useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;
-      }
-
-      let useSkinning = false;
-
-      if (object.isSkinnedMesh === true) {
-        if (material.skinning === true) {
-          useSkinning = true;
-        } else {
-          console.warn('THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object);
-        }
-      }
-
-      const useInstancing = object.isInstancedMesh === true;
-      result = getMaterialVariant(useMorphing, useSkinning, useInstancing);
-    } else {
-      result = customMaterial;
-    }
-
-    if (_renderer.localClippingEnabled && material.clipShadows === true && material.clippingPlanes.length !== 0) {
-      // in this case we need a unique material instance reflecting the
-      // appropriate state
-      const keyA = result.uuid,
-            keyB = material.uuid;
-      let materialsForVariant = _materialCache[keyA];
-
-      if (materialsForVariant === undefined) {
-        materialsForVariant = {};
-        _materialCache[keyA] = materialsForVariant;
-      }
-
-      let cachedMaterial = materialsForVariant[keyB];
-
-      if (cachedMaterial === undefined) {
-        cachedMaterial = result.clone();
-        materialsForVariant[keyB] = cachedMaterial;
-      }
-
-      result = cachedMaterial;
-    }
-
-    result.visible = material.visible;
-    result.wireframe = material.wireframe;
-
-    if (type === VSMShadowMap) {
-      result.side = material.shadowSide !== null ? material.shadowSide : material.side;
-    } else {
-      result.side = material.shadowSide !== null ? material.shadowSide : shadowSide[material.side];
-    }
-
-    result.clipShadows = material.clipShadows;
-    result.clippingPlanes = material.clippingPlanes;
-    result.clipIntersection = material.clipIntersection;
-    result.wireframeLinewidth = material.wireframeLinewidth;
-    result.linewidth = material.linewidth;
-
-    if (light.isPointLight === true && result.isMeshDistanceMaterial === true) {
-      result.referencePosition.setFromMatrixPosition(light.matrixWorld);
-      result.nearDistance = shadowCameraNear;
-      result.farDistance = shadowCameraFar;
-    }
-
-    return result;
-  }
-
-  function renderObject(object, camera, shadowCamera, light, type) {
-    if (object.visible === false) return;
-    const visible = object.layers.test(camera.layers);
-
-    if (visible && (object.isMesh || object.isLine || object.isPoints)) {
-      if ((object.castShadow || object.receiveShadow && type === VSMShadowMap) && (!object.frustumCulled || _frustum.intersectsObject(object))) {
-        object.modelViewMatrix.multiplyMatrices(shadowCamera.matrixWorldInverse, object.matrixWorld);
-
-        const geometry = _objects.update(object);
-
-        const material = object.material;
-
-        if (Array.isArray(material)) {
-          const groups = geometry.groups;
-
-          for (let k = 0, kl = groups.length; k < kl; k++) {
-            const group = groups[k];
-            const groupMaterial = material[group.materialIndex];
-
-            if (groupMaterial && groupMaterial.visible) {
-              const depthMaterial = getDepthMaterial(object, geometry, groupMaterial, light, shadowCamera.near, shadowCamera.far, type);
-
-              _renderer.renderBufferDirect(shadowCamera, null, geometry, depthMaterial, object, group);
-            }
-          }
-        } else if (material.visible) {
-          const depthMaterial = getDepthMaterial(object, geometry, material, light, shadowCamera.near, shadowCamera.far, type);
-
-          _renderer.renderBufferDirect(shadowCamera, null, geometry, depthMaterial, object, null);
-        }
-      }
-    }
-
-    const children = object.children;
-
-    for (let i = 0, l = children.length; i < l; i++) {
-      renderObject(children[i], camera, shadowCamera, light, type);
-    }
-  }
-}
-
-function WebGLState(gl, extensions, capabilities) {
-  const isWebGL2 = capabilities.isWebGL2;
-
-  function ColorBuffer() {
-    let locked = false;
-    const color = new Vector4();
-    let currentColorMask = null;
-    const currentColorClear = new Vector4(0, 0, 0, 0);
-    return {
-      setMask: function (colorMask) {
-        if (currentColorMask !== colorMask && !locked) {
-          gl.colorMask(colorMask, colorMask, colorMask, colorMask);
-          currentColorMask = colorMask;
-        }
-      },
-      setLocked: function (lock) {
-        locked = lock;
-      },
-      setClear: function (r, g, b, a, premultipliedAlpha) {
-        if (premultipliedAlpha === true) {
-          r *= a;
-          g *= a;
-          b *= a;
-        }
-
-        color.set(r, g, b, a);
-
-        if (currentColorClear.equals(color) === false) {
-          gl.clearColor(r, g, b, a);
-          currentColorClear.copy(color);
-        }
-      },
-      reset: function () {
-        locked = false;
-        currentColorMask = null;
-        currentColorClear.set(-1, 0, 0, 0); // set to invalid state
-      }
-    };
-  }
-
-  function DepthBuffer() {
-    let locked = false;
-    let currentDepthMask = null;
-    let currentDepthFunc = null;
-    let currentDepthClear = null;
-    return {
-      setTest: function (depthTest) {
-        if (depthTest) {
-          enable(2929);
-        } else {
-          disable(2929);
-        }
-      },
-      setMask: function (depthMask) {
-        if (currentDepthMask !== depthMask && !locked) {
-          gl.depthMask(depthMask);
-          currentDepthMask = depthMask;
-        }
-      },
-      setFunc: function (depthFunc) {
-        if (currentDepthFunc !== depthFunc) {
-          if (depthFunc) {
-            switch (depthFunc) {
-              case NeverDepth:
-                gl.depthFunc(512);
-                break;
-
-              case AlwaysDepth:
-                gl.depthFunc(519);
-                break;
-
-              case LessDepth:
-                gl.depthFunc(513);
-                break;
-
-              case LessEqualDepth:
-                gl.depthFunc(515);
-                break;
-
-              case EqualDepth:
-                gl.depthFunc(514);
-                break;
-
-              case GreaterEqualDepth:
-                gl.depthFunc(518);
-                break;
-
-              case GreaterDepth:
-                gl.depthFunc(516);
-                break;
-
-              case NotEqualDepth:
-                gl.depthFunc(517);
-                break;
-
-              default:
-                gl.depthFunc(515);
-            }
-          } else {
-            gl.depthFunc(515);
-          }
-
-          currentDepthFunc = depthFunc;
-        }
-      },
-      setLocked: function (lock) {
-        locked = lock;
-      },
-      setClear: function (depth) {
-        if (currentDepthClear !== depth) {
-          gl.clearDepth(depth);
-          currentDepthClear = depth;
-        }
-      },
-      reset: function () {
-        locked = false;
-        currentDepthMask = null;
-        currentDepthFunc = null;
-        currentDepthClear = null;
-      }
-    };
-  }
-
-  function StencilBuffer() {
-    let locked = false;
-    let currentStencilMask = null;
-    let currentStencilFunc = null;
-    let currentStencilRef = null;
-    let currentStencilFuncMask = null;
-    let currentStencilFail = null;
-    let currentStencilZFail = null;
-    let currentStencilZPass = null;
-    let currentStencilClear = null;
-    return {
-      setTest: function (stencilTest) {
-        if (!locked) {
-          if (stencilTest) {
-            enable(2960);
-          } else {
-            disable(2960);
-          }
-        }
-      },
-      setMask: function (stencilMask) {
-        if (currentStencilMask !== stencilMask && !locked) {
-          gl.stencilMask(stencilMask);
-          currentStencilMask = stencilMask;
-        }
-      },
-      setFunc: function (stencilFunc, stencilRef, stencilMask) {
-        if (currentStencilFunc !== stencilFunc || currentStencilRef !== stencilRef || currentStencilFuncMask !== stencilMask) {
-          gl.stencilFunc(stencilFunc, stencilRef, stencilMask);
-          currentStencilFunc = stencilFunc;
-          currentStencilRef = stencilRef;
-          currentStencilFuncMask = stencilMask;
-        }
-      },
-      setOp: function (stencilFail, stencilZFail, stencilZPass) {
-        if (currentStencilFail !== stencilFail || currentStencilZFail !== stencilZFail || currentStencilZPass !== stencilZPass) {
-          gl.stencilOp(stencilFail, stencilZFail, stencilZPass);
-          currentStencilFail = stencilFail;
-          currentStencilZFail = stencilZFail;
-          currentStencilZPass = stencilZPass;
-        }
-      },
-      setLocked: function (lock) {
-        locked = lock;
-      },
-      setClear: function (stencil) {
-        if (currentStencilClear !== stencil) {
-          gl.clearStencil(stencil);
-          currentStencilClear = stencil;
-        }
-      },
-      reset: function () {
-        locked = false;
-        currentStencilMask = null;
-        currentStencilFunc = null;
-        currentStencilRef = null;
-        currentStencilFuncMask = null;
-        currentStencilFail = null;
-        currentStencilZFail = null;
-        currentStencilZPass = null;
-        currentStencilClear = null;
-      }
-    };
-  } //
-
-
-  const colorBuffer = new ColorBuffer();
-  const depthBuffer = new DepthBuffer();
-  const stencilBuffer = new StencilBuffer();
-  let enabledCapabilities = {};
-  let currentProgram = null;
-  let currentBlendingEnabled = false;
-  let currentBlending = null;
-  let currentBlendEquation = null;
-  let currentBlendSrc = null;
-  let currentBlendDst = null;
-  let currentBlendEquationAlpha = null;
-  let currentBlendSrcAlpha = null;
-  let currentBlendDstAlpha = null;
-  let currentPremultipledAlpha = false;
-  let currentFlipSided = null;
-  let currentCullFace = null;
-  let currentLineWidth = null;
-  let currentPolygonOffsetFactor = null;
-  let currentPolygonOffsetUnits = null;
-  const maxTextures = gl.getParameter(35661);
-  let lineWidthAvailable = false;
-  let version = 0;
-  const glVersion = gl.getParameter(7938);
-
-  if (glVersion.indexOf('WebGL') !== -1) {
-    version = parseFloat(/^WebGL (\d)/.exec(glVersion)[1]);
-    lineWidthAvailable = version >= 1.0;
-  } else if (glVersion.indexOf('OpenGL ES') !== -1) {
-    version = parseFloat(/^OpenGL ES (\d)/.exec(glVersion)[1]);
-    lineWidthAvailable = version >= 2.0;
-  }
-
-  let currentTextureSlot = null;
-  let currentBoundTextures = {};
-  const currentScissor = new Vector4();
-  const currentViewport = new Vector4();
-
-  function createTexture(type, target, count) {
-    const data = new Uint8Array(4); // 4 is required to match default unpack alignment of 4.
-
-    const texture = gl.createTexture();
-    gl.bindTexture(type, texture);
-    gl.texParameteri(type, 10241, 9728);
-    gl.texParameteri(type, 10240, 9728);
-
-    for (let i = 0; i < count; i++) {
-      gl.texImage2D(target + i, 0, 6408, 1, 1, 0, 6408, 5121, data);
-    }
-
-    return texture;
-  }
-
-  const emptyTextures = {};
-  emptyTextures[3553] = createTexture(3553, 3553, 1);
-  emptyTextures[34067] = createTexture(34067, 34069, 6); // init
-
-  colorBuffer.setClear(0, 0, 0, 1);
-  depthBuffer.setClear(1);
-  stencilBuffer.setClear(0);
-  enable(2929);
-  depthBuffer.setFunc(LessEqualDepth);
-  setFlipSided(false);
-  setCullFace(CullFaceBack);
-  enable(2884);
-  setBlending(NoBlending); //
-
-  function enable(id) {
-    if (enabledCapabilities[id] !== true) {
-      gl.enable(id);
-      enabledCapabilities[id] = true;
-    }
-  }
-
-  function disable(id) {
-    if (enabledCapabilities[id] !== false) {
-      gl.disable(id);
-      enabledCapabilities[id] = false;
-    }
-  }
-
-  function useProgram(program) {
-    if (currentProgram !== program) {
-      gl.useProgram(program);
-      currentProgram = program;
-      return true;
-    }
-
-    return false;
-  }
-
-  const equationToGL = {
-    [AddEquation]: 32774,
-    [SubtractEquation]: 32778,
-    [ReverseSubtractEquation]: 32779
-  };
-
-  if (isWebGL2) {
-    equationToGL[MinEquation] = 32775;
-    equationToGL[MaxEquation] = 32776;
-  } else {
-    const extension = extensions.get('EXT_blend_minmax');
-
-    if (extension !== null) {
-      equationToGL[MinEquation] = extension.MIN_EXT;
-      equationToGL[MaxEquation] = extension.MAX_EXT;
-    }
-  }
-
-  const factorToGL = {
-    [ZeroFactor]: 0,
-    [OneFactor]: 1,
-    [SrcColorFactor]: 768,
-    [SrcAlphaFactor]: 770,
-    [SrcAlphaSaturateFactor]: 776,
-    [DstColorFactor]: 774,
-    [DstAlphaFactor]: 772,
-    [OneMinusSrcColorFactor]: 769,
-    [OneMinusSrcAlphaFactor]: 771,
-    [OneMinusDstColorFactor]: 775,
-    [OneMinusDstAlphaFactor]: 773
-  };
-
-  function setBlending(blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha) {
-    if (blending === NoBlending) {
-      if (currentBlendingEnabled === true) {
-        disable(3042);
-        currentBlendingEnabled = false;
-      }
-
-      return;
-    }
-
-    if (currentBlendingEnabled === false) {
-      enable(3042);
-      currentBlendingEnabled = true;
-    }
-
-    if (blending !== CustomBlending) {
-      if (blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha) {
-        if (currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation) {
-          gl.blendEquation(32774);
-          currentBlendEquation = AddEquation;
-          currentBlendEquationAlpha = AddEquation;
-        }
-
-        if (premultipliedAlpha) {
-          switch (blending) {
-            case NormalBlending:
-              gl.blendFuncSeparate(1, 771, 1, 771);
-              break;
-
-            case AdditiveBlending:
-              gl.blendFunc(1, 1);
-              break;
-
-            case SubtractiveBlending:
-              gl.blendFuncSeparate(0, 0, 769, 771);
-              break;
-
-            case MultiplyBlending:
-              gl.blendFuncSeparate(0, 768, 0, 770);
-              break;
-
-            default:
-              console.error('THREE.WebGLState: Invalid blending: ', blending);
-              break;
-          }
-        } else {
-          switch (blending) {
-            case NormalBlending:
-              gl.blendFuncSeparate(770, 771, 1, 771);
-              break;
-
-            case AdditiveBlending:
-              gl.blendFunc(770, 1);
-              break;
-
-            case SubtractiveBlending:
-              gl.blendFunc(0, 769);
-              break;
-
-            case MultiplyBlending:
-              gl.blendFunc(0, 768);
-              break;
-
-            default:
-              console.error('THREE.WebGLState: Invalid blending: ', blending);
-              break;
-          }
-        }
-
-        currentBlendSrc = null;
-        currentBlendDst = null;
-        currentBlendSrcAlpha = null;
-        currentBlendDstAlpha = null;
-        currentBlending = blending;
-        currentPremultipledAlpha = premultipliedAlpha;
-      }
-
-      return;
-    } // custom blending
-
-
-    blendEquationAlpha = blendEquationAlpha || blendEquation;
-    blendSrcAlpha = blendSrcAlpha || blendSrc;
-    blendDstAlpha = blendDstAlpha || blendDst;
-
-    if (blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha) {
-      gl.blendEquationSeparate(equationToGL[blendEquation], equationToGL[blendEquationAlpha]);
-      currentBlendEquation = blendEquation;
-      currentBlendEquationAlpha = blendEquationAlpha;
-    }
-
-    if (blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha) {
-      gl.blendFuncSeparate(factorToGL[blendSrc], factorToGL[blendDst], factorToGL[blendSrcAlpha], factorToGL[blendDstAlpha]);
-      currentBlendSrc = blendSrc;
-      currentBlendDst = blendDst;
-      currentBlendSrcAlpha = blendSrcAlpha;
-      currentBlendDstAlpha = blendDstAlpha;
-    }
-
-    currentBlending = blending;
-    currentPremultipledAlpha = null;
-  }
-
-  function setMaterial(material, frontFaceCW) {
-    material.side === DoubleSide ? disable(2884) : enable(2884);
-    let flipSided = material.side === BackSide;
-    if (frontFaceCW) flipSided = !flipSided;
-    setFlipSided(flipSided);
-    material.blending === NormalBlending && material.transparent === false ? setBlending(NoBlending) : setBlending(material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha);
-    depthBuffer.setFunc(material.depthFunc);
-    depthBuffer.setTest(material.depthTest);
-    depthBuffer.setMask(material.depthWrite);
-    colorBuffer.setMask(material.colorWrite);
-    const stencilWrite = material.stencilWrite;
-    stencilBuffer.setTest(stencilWrite);
-
-    if (stencilWrite) {
-      stencilBuffer.setMask(material.stencilWriteMask);
-      stencilBuffer.setFunc(material.stencilFunc, material.stencilRef, material.stencilFuncMask);
-      stencilBuffer.setOp(material.stencilFail, material.stencilZFail, material.stencilZPass);
-    }
-
-    setPolygonOffset(material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits);
-  } //
-
-
-  function setFlipSided(flipSided) {
-    if (currentFlipSided !== flipSided) {
-      if (flipSided) {
-        gl.frontFace(2304);
-      } else {
-        gl.frontFace(2305);
-      }
-
-      currentFlipSided = flipSided;
-    }
-  }
-
-  function setCullFace(cullFace) {
-    if (cullFace !== CullFaceNone) {
-      enable(2884);
-
-      if (cullFace !== currentCullFace) {
-        if (cullFace === CullFaceBack) {
-          gl.cullFace(1029);
-        } else if (cullFace === CullFaceFront) {
-          gl.cullFace(1028);
-        } else {
-          gl.cullFace(1032);
-        }
-      }
-    } else {
-      disable(2884);
-    }
-
-    currentCullFace = cullFace;
-  }
-
-  function setLineWidth(width) {
-    if (width !== currentLineWidth) {
-      if (lineWidthAvailable) gl.lineWidth(width);
-      currentLineWidth = width;
-    }
-  }
-
-  function setPolygonOffset(polygonOffset, factor, units) {
-    if (polygonOffset) {
-      enable(32823);
-
-      if (currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units) {
-        gl.polygonOffset(factor, units);
-        currentPolygonOffsetFactor = factor;
-        currentPolygonOffsetUnits = units;
-      }
-    } else {
-      disable(32823);
-    }
-  }
-
-  function setScissorTest(scissorTest) {
-    if (scissorTest) {
-      enable(3089);
-    } else {
-      disable(3089);
-    }
-  } // texture
-
-
-  function activeTexture(webglSlot) {
-    if (webglSlot === undefined) webglSlot = 33984 + maxTextures - 1;
-
-    if (currentTextureSlot !== webglSlot) {
-      gl.activeTexture(webglSlot);
-      currentTextureSlot = webglSlot;
-    }
-  }
-
-  function bindTexture(webglType, webglTexture) {
-    if (currentTextureSlot === null) {
-      activeTexture();
-    }
-
-    let boundTexture = currentBoundTextures[currentTextureSlot];
-
-    if (boundTexture === undefined) {
-      boundTexture = {
-        type: undefined,
-        texture: undefined
-      };
-      currentBoundTextures[currentTextureSlot] = boundTexture;
-    }
-
-    if (boundTexture.type !== webglType || boundTexture.texture !== webglTexture) {
-      gl.bindTexture(webglType, webglTexture || emptyTextures[webglType]);
-      boundTexture.type = webglType;
-      boundTexture.texture = webglTexture;
-    }
-  }
-
-  function unbindTexture() {
-    const boundTexture = currentBoundTextures[currentTextureSlot];
-
-    if (boundTexture !== undefined && boundTexture.type !== undefined) {
-      gl.bindTexture(boundTexture.type, null);
-      boundTexture.type = undefined;
-      boundTexture.texture = undefined;
-    }
-  }
-
-  function compressedTexImage2D() {
-    try {
-      gl.compressedTexImage2D.apply(gl, arguments);
-    } catch (error) {
-      console.error('THREE.WebGLState:', error);
-    }
-  }
-
-  function texImage2D() {
-    try {
-      gl.texImage2D.apply(gl, arguments);
-    } catch (error) {
-      console.error('THREE.WebGLState:', error);
-    }
-  }
-
-  function texImage3D() {
-    try {
-      gl.texImage3D.apply(gl, arguments);
-    } catch (error) {
-      console.error('THREE.WebGLState:', error);
-    }
-  } //
-
-
-  function scissor(scissor) {
-    if (currentScissor.equals(scissor) === false) {
-      gl.scissor(scissor.x, scissor.y, scissor.z, scissor.w);
-      currentScissor.copy(scissor);
-    }
-  }
-
-  function viewport(viewport) {
-    if (currentViewport.equals(viewport) === false) {
-      gl.viewport(viewport.x, viewport.y, viewport.z, viewport.w);
-      currentViewport.copy(viewport);
-    }
-  } //
-
-
-  function reset() {
-    // reset state
-    gl.disable(3042);
-    gl.disable(2884);
-    gl.disable(2929);
-    gl.disable(32823);
-    gl.disable(3089);
-    gl.disable(2960);
-    gl.blendEquation(32774);
-    gl.blendFunc(1, 0);
-    gl.blendFuncSeparate(1, 0, 1, 0);
-    gl.colorMask(true, true, true, true);
-    gl.clearColor(0, 0, 0, 0);
-    gl.depthMask(true);
-    gl.depthFunc(513);
-    gl.clearDepth(1);
-    gl.stencilMask(0xffffffff);
-    gl.stencilFunc(519, 0, 0xffffffff);
-    gl.stencilOp(7680, 7680, 7680);
-    gl.clearStencil(0);
-    gl.cullFace(1029);
-    gl.frontFace(2305);
-    gl.polygonOffset(0, 0);
-    gl.activeTexture(33984);
-    gl.useProgram(null);
-    gl.lineWidth(1);
-    gl.scissor(0, 0, gl.canvas.width, gl.canvas.height);
-    gl.viewport(0, 0, gl.canvas.width, gl.canvas.height); // reset internals
-
-    enabledCapabilities = {};
-    currentTextureSlot = null;
-    currentBoundTextures = {};
-    currentProgram = null;
-    currentBlendingEnabled = false;
-    currentBlending = null;
-    currentBlendEquation = null;
-    currentBlendSrc = null;
-    currentBlendDst = null;
-    currentBlendEquationAlpha = null;
-    currentBlendSrcAlpha = null;
-    currentBlendDstAlpha = null;
-    currentPremultipledAlpha = false;
-    currentFlipSided = null;
-    currentCullFace = null;
-    currentLineWidth = null;
-    currentPolygonOffsetFactor = null;
-    currentPolygonOffsetUnits = null;
-    colorBuffer.reset();
-    depthBuffer.reset();
-    stencilBuffer.reset();
-  }
-
-  return {
-    buffers: {
-      color: colorBuffer,
-      depth: depthBuffer,
-      stencil: stencilBuffer
-    },
-    enable: enable,
-    disable: disable,
-    useProgram: useProgram,
-    setBlending: setBlending,
-    setMaterial: setMaterial,
-    setFlipSided: setFlipSided,
-    setCullFace: setCullFace,
-    setLineWidth: setLineWidth,
-    setPolygonOffset: setPolygonOffset,
-    setScissorTest: setScissorTest,
-    activeTexture: activeTexture,
-    bindTexture: bindTexture,
-    unbindTexture: unbindTexture,
-    compressedTexImage2D: compressedTexImage2D,
-    texImage2D: texImage2D,
-    texImage3D: texImage3D,
-    scissor: scissor,
-    viewport: viewport,
-    reset: reset
-  };
-}
-
-function WebGLTextures(_gl, extensions, state, properties, capabilities, utils, info) {
-  const isWebGL2 = capabilities.isWebGL2;
-  const maxTextures = capabilities.maxTextures;
-  const maxCubemapSize = capabilities.maxCubemapSize;
-  const maxTextureSize = capabilities.maxTextureSize;
-  const maxSamples = capabilities.maxSamples;
-
-  const _videoTextures = new WeakMap();
-
-  let _canvas; // cordova iOS (as of 5.0) still uses UIWebView, which provides OffscreenCanvas,
-  // also OffscreenCanvas.getContext("webgl"), but not OffscreenCanvas.getContext("2d")!
-  // Some implementations may only implement OffscreenCanvas partially (e.g. lacking 2d).
-
-
-  let useOffscreenCanvas = false;
-
-  try {
-    useOffscreenCanvas = typeof OffscreenCanvas !== 'undefined' && new OffscreenCanvas(1, 1).getContext('2d') !== null;
-  } catch (err) {// Ignore any errors
-  }
-
-  function createCanvas(width, height) {
-    // Use OffscreenCanvas when available. Specially needed in web workers
-    return useOffscreenCanvas ? new OffscreenCanvas(width, height) : document.createElementNS('http://www.w3.org/1999/xhtml', 'canvas');
-  }
-
-  function resizeImage(image, needsPowerOfTwo, needsNewCanvas, maxSize) {
-    let scale = 1; // handle case if texture exceeds max size
-
-    if (image.width > maxSize || image.height > maxSize) {
-      scale = maxSize / Math.max(image.width, image.height);
-    } // only perform resize if necessary
-
-
-    if (scale < 1 || needsPowerOfTwo === true) {
-      // only perform resize for certain image types
-      if (typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement || typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap) {
-        const floor = needsPowerOfTwo ? MathUtils.floorPowerOfTwo : Math.floor;
-        const width = floor(scale * image.width);
-        const height = floor(scale * image.height);
-        if (_canvas === undefined) _canvas = createCanvas(width, height); // cube textures can't reuse the same canvas
-
-        const canvas = needsNewCanvas ? createCanvas(width, height) : _canvas;
-        canvas.width = width;
-        canvas.height = height;
-        const context = canvas.getContext('2d');
-        context.drawImage(image, 0, 0, width, height);
-        console.warn('THREE.WebGLRenderer: Texture has been resized from (' + image.width + 'x' + image.height + ') to (' + width + 'x' + height + ').');
-        return canvas;
-      } else {
-        if ('data' in image) {
-          console.warn('THREE.WebGLRenderer: Image in DataTexture is too big (' + image.width + 'x' + image.height + ').');
-        }
-
-        return image;
-      }
-    }
-
-    return image;
-  }
-
-  function isPowerOfTwo(image) {
-    return MathUtils.isPowerOfTwo(image.width) && MathUtils.isPowerOfTwo(image.height);
-  }
-
-  function textureNeedsPowerOfTwo(texture) {
-    if (isWebGL2) return false;
-    return texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping || texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
-  }
-
-  function textureNeedsGenerateMipmaps(texture, supportsMips) {
-    return texture.generateMipmaps && supportsMips && texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
-  }
-
-  function generateMipmap(target, texture, width, height) {
-    _gl.generateMipmap(target);
-
-    const textureProperties = properties.get(texture);
-    textureProperties.__maxMipLevel = Math.log2(Math.max(width, height));
-  }
-
-  function getInternalFormat(internalFormatName, glFormat, glType) {
-    if (isWebGL2 === false) return glFormat;
-
-    if (internalFormatName !== null) {
-      if (_gl[internalFormatName] !== undefined) return _gl[internalFormatName];
-      console.warn('THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format \'' + internalFormatName + '\'');
-    }
-
-    let internalFormat = glFormat;
-
-    if (glFormat === 6403) {
-      if (glType === 5126) internalFormat = 33326;
-      if (glType === 5131) internalFormat = 33325;
-      if (glType === 5121) internalFormat = 33321;
-    }
-
-    if (glFormat === 6407) {
-      if (glType === 5126) internalFormat = 34837;
-      if (glType === 5131) internalFormat = 34843;
-      if (glType === 5121) internalFormat = 32849;
-    }
-
-    if (glFormat === 6408) {
-      if (glType === 5126) internalFormat = 34836;
-      if (glType === 5131) internalFormat = 34842;
-      if (glType === 5121) internalFormat = 32856;
-    }
-
-    if (internalFormat === 33325 || internalFormat === 33326 || internalFormat === 34842 || internalFormat === 34836) {
-      extensions.get('EXT_color_buffer_float');
-    }
-
-    return internalFormat;
-  } // Fallback filters for non-power-of-2 textures
-
-
-  function filterFallback(f) {
-    if (f === NearestFilter || f === NearestMipmapNearestFilter || f === NearestMipmapLinearFilter) {
-      return 9728;
-    }
-
-    return 9729;
-  } //
-
-
-  function onTextureDispose(event) {
-    const texture = event.target;
-    texture.removeEventListener('dispose', onTextureDispose);
-    deallocateTexture(texture);
-
-    if (texture.isVideoTexture) {
-      _videoTextures.delete(texture);
-    }
-
-    info.memory.textures--;
-  }
-
-  function onRenderTargetDispose(event) {
-    const renderTarget = event.target;
-    renderTarget.removeEventListener('dispose', onRenderTargetDispose);
-    deallocateRenderTarget(renderTarget);
-    info.memory.textures--;
-  } //
-
-
-  function deallocateTexture(texture) {
-    const textureProperties = properties.get(texture);
-    if (textureProperties.__webglInit === undefined) return;
-
-    _gl.deleteTexture(textureProperties.__webglTexture);
-
-    properties.remove(texture);
-  }
-
-  function deallocateRenderTarget(renderTarget) {
-    const texture = renderTarget.texture;
-    const renderTargetProperties = properties.get(renderTarget);
-    const textureProperties = properties.get(texture);
-    if (!renderTarget) return;
-
-    if (textureProperties.__webglTexture !== undefined) {
-      _gl.deleteTexture(textureProperties.__webglTexture);
-    }
-
-    if (renderTarget.depthTexture) {
-      renderTarget.depthTexture.dispose();
-    }
-
-    if (renderTarget.isWebGLCubeRenderTarget) {
-      for (let i = 0; i < 6; i++) {
-        _gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer[i]);
-
-        if (renderTargetProperties.__webglDepthbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer[i]);
-      }
-    } else {
-      _gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer);
-
-      if (renderTargetProperties.__webglDepthbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer);
-      if (renderTargetProperties.__webglMultisampledFramebuffer) _gl.deleteFramebuffer(renderTargetProperties.__webglMultisampledFramebuffer);
-      if (renderTargetProperties.__webglColorRenderbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglColorRenderbuffer);
-      if (renderTargetProperties.__webglDepthRenderbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthRenderbuffer);
-    }
-
-    properties.remove(texture);
-    properties.remove(renderTarget);
-  } //
-
-
-  let textureUnits = 0;
-
-  function resetTextureUnits() {
-    textureUnits = 0;
-  }
-
-  function allocateTextureUnit() {
-    const textureUnit = textureUnits;
-
-    if (textureUnit >= maxTextures) {
-      console.warn('THREE.WebGLTextures: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + maxTextures);
-    }
-
-    textureUnits += 1;
-    return textureUnit;
-  } //
-
-
-  function setTexture2D(texture, slot) {
-    const textureProperties = properties.get(texture);
-    if (texture.isVideoTexture) updateVideoTexture(texture);
-
-    if (texture.version > 0 && textureProperties.__version !== texture.version) {
-      const image = texture.image;
-
-      if (image === undefined) {
-        console.warn('THREE.WebGLRenderer: Texture marked for update but image is undefined');
-      } else if (image.complete === false) {
-        console.warn('THREE.WebGLRenderer: Texture marked for update but image is incomplete');
-      } else {
-        uploadTexture(textureProperties, texture, slot);
-        return;
-      }
-    }
-
-    state.activeTexture(33984 + slot);
-    state.bindTexture(3553, textureProperties.__webglTexture);
-  }
-
-  function setTexture2DArray(texture, slot) {
-    const textureProperties = properties.get(texture);
-
-    if (texture.version > 0 && textureProperties.__version !== texture.version) {
-      uploadTexture(textureProperties, texture, slot);
-      return;
-    }
-
-    state.activeTexture(33984 + slot);
-    state.bindTexture(35866, textureProperties.__webglTexture);
-  }
-
-  function setTexture3D(texture, slot) {
-    const textureProperties = properties.get(texture);
-
-    if (texture.version > 0 && textureProperties.__version !== texture.version) {
-      uploadTexture(textureProperties, texture, slot);
-      return;
-    }
-
-    state.activeTexture(33984 + slot);
-    state.bindTexture(32879, textureProperties.__webglTexture);
-  }
-
-  function setTextureCube(texture, slot) {
-    const textureProperties = properties.get(texture);
-
-    if (texture.version > 0 && textureProperties.__version !== texture.version) {
-      uploadCubeTexture(textureProperties, texture, slot);
-      return;
-    }
-
-    state.activeTexture(33984 + slot);
-    state.bindTexture(34067, textureProperties.__webglTexture);
-  }
-
-  const wrappingToGL = {
-    [RepeatWrapping]: 10497,
-    [ClampToEdgeWrapping]: 33071,
-    [MirroredRepeatWrapping]: 33648
-  };
-  const filterToGL = {
-    [NearestFilter]: 9728,
-    [NearestMipmapNearestFilter]: 9984,
-    [NearestMipmapLinearFilter]: 9986,
-    [LinearFilter]: 9729,
-    [LinearMipmapNearestFilter]: 9985,
-    [LinearMipmapLinearFilter]: 9987
-  };
-
-  function setTextureParameters(textureType, texture, supportsMips) {
-    if (supportsMips) {
-      _gl.texParameteri(textureType, 10242, wrappingToGL[texture.wrapS]);
-
-      _gl.texParameteri(textureType, 10243, wrappingToGL[texture.wrapT]);
-
-      if (textureType === 32879 || textureType === 35866) {
-        _gl.texParameteri(textureType, 32882, wrappingToGL[texture.wrapR]);
-      }
-
-      _gl.texParameteri(textureType, 10240, filterToGL[texture.magFilter]);
-
-      _gl.texParameteri(textureType, 10241, filterToGL[texture.minFilter]);
-    } else {
-      _gl.texParameteri(textureType, 10242, 33071);
-
-      _gl.texParameteri(textureType, 10243, 33071);
-
-      if (textureType === 32879 || textureType === 35866) {
-        _gl.texParameteri(textureType, 32882, 33071);
-      }
-
-      if (texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping) {
-        console.warn('THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.');
-      }
-
-      _gl.texParameteri(textureType, 10240, filterFallback(texture.magFilter));
-
-      _gl.texParameteri(textureType, 10241, filterFallback(texture.minFilter));
-
-      if (texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter) {
-        console.warn('THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.');
-      }
-    }
-
-    if (extensions.has('EXT_texture_filter_anisotropic') === true) {
-      const extension = extensions.get('EXT_texture_filter_anisotropic');
-      if (texture.type === FloatType && extensions.has('OES_texture_float_linear') === false) return; // verify extension for WebGL 1 and WebGL 2
-
-      if (isWebGL2 === false && texture.type === HalfFloatType && extensions.has('OES_texture_half_float_linear') === false) return; // verify extension for WebGL 1 only
-
-      if (texture.anisotropy > 1 || properties.get(texture).__currentAnisotropy) {
-        _gl.texParameterf(textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min(texture.anisotropy, capabilities.getMaxAnisotropy()));
-
-        properties.get(texture).__currentAnisotropy = texture.anisotropy;
-      }
-    }
-  }
-
-  function initTexture(textureProperties, texture) {
-    if (textureProperties.__webglInit === undefined) {
-      textureProperties.__webglInit = true;
-      texture.addEventListener('dispose', onTextureDispose);
-      textureProperties.__webglTexture = _gl.createTexture();
-      info.memory.textures++;
-    }
-  }
-
-  function uploadTexture(textureProperties, texture, slot) {
-    let textureType = 3553;
-    if (texture.isDataTexture2DArray) textureType = 35866;
-    if (texture.isDataTexture3D) textureType = 32879;
-    initTexture(textureProperties, texture);
-    state.activeTexture(33984 + slot);
-    state.bindTexture(textureType, textureProperties.__webglTexture);
-
-    _gl.pixelStorei(37440, texture.flipY);
-
-    _gl.pixelStorei(37441, texture.premultiplyAlpha);
-
-    _gl.pixelStorei(3317, texture.unpackAlignment);
-
-    _gl.pixelStorei(37443, 0);
-
-    const needsPowerOfTwo = textureNeedsPowerOfTwo(texture) && isPowerOfTwo(texture.image) === false;
-    const image = resizeImage(texture.image, needsPowerOfTwo, false, maxTextureSize);
-    const supportsMips = isPowerOfTwo(image) || isWebGL2,
-          glFormat = utils.convert(texture.format);
-    let glType = utils.convert(texture.type),
-        glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
-    setTextureParameters(textureType, texture, supportsMips);
-    let mipmap;
-    const mipmaps = texture.mipmaps;
-
-    if (texture.isDepthTexture) {
-      // populate depth texture with dummy data
-      glInternalFormat = 6402;
-
-      if (isWebGL2) {
-        if (texture.type === FloatType) {
-          glInternalFormat = 36012;
-        } else if (texture.type === UnsignedIntType) {
-          glInternalFormat = 33190;
-        } else if (texture.type === UnsignedInt248Type) {
-          glInternalFormat = 35056;
-        } else {
-          glInternalFormat = 33189; // WebGL2 requires sized internalformat for glTexImage2D
-        }
-      } else {
-        if (texture.type === FloatType) {
-          console.error('WebGLRenderer: Floating point depth texture requires WebGL2.');
-        }
-      } // validation checks for WebGL 1
-
-
-      if (texture.format === DepthFormat && glInternalFormat === 6402) {
-        // The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
-        // DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
-        // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
-        if (texture.type !== UnsignedShortType && texture.type !== UnsignedIntType) {
-          console.warn('THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.');
-          texture.type = UnsignedShortType;
-          glType = utils.convert(texture.type);
-        }
-      }
-
-      if (texture.format === DepthStencilFormat && glInternalFormat === 6402) {
-        // Depth stencil textures need the DEPTH_STENCIL internal format
-        // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
-        glInternalFormat = 34041; // The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
-        // DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
-        // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
-
-        if (texture.type !== UnsignedInt248Type) {
-          console.warn('THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.');
-          texture.type = UnsignedInt248Type;
-          glType = utils.convert(texture.type);
-        }
-      } //
-
-
-      state.texImage2D(3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null);
-    } else if (texture.isDataTexture) {
-      // use manually created mipmaps if available
-      // if there are no manual mipmaps
-      // set 0 level mipmap and then use GL to generate other mipmap levels
-      if (mipmaps.length > 0 && supportsMips) {
-        for (let i = 0, il = mipmaps.length; i < il; i++) {
-          mipmap = mipmaps[i];
-          state.texImage2D(3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
-        }
-
-        texture.generateMipmaps = false;
-        textureProperties.__maxMipLevel = mipmaps.length - 1;
-      } else {
-        state.texImage2D(3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data);
-        textureProperties.__maxMipLevel = 0;
-      }
-    } else if (texture.isCompressedTexture) {
-      for (let i = 0, il = mipmaps.length; i < il; i++) {
-        mipmap = mipmaps[i];
-
-        if (texture.format !== RGBAFormat && texture.format !== RGBFormat) {
-          if (glFormat !== null) {
-            state.compressedTexImage2D(3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data);
-          } else {
-            console.warn('THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()');
-          }
-        } else {
-          state.texImage2D(3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
-        }
-      }
-
-      textureProperties.__maxMipLevel = mipmaps.length - 1;
-    } else if (texture.isDataTexture2DArray) {
-      state.texImage3D(35866, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data);
-      textureProperties.__maxMipLevel = 0;
-    } else if (texture.isDataTexture3D) {
-      state.texImage3D(32879, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data);
-      textureProperties.__maxMipLevel = 0;
-    } else {
-      // regular Texture (image, video, canvas)
-      // use manually created mipmaps if available
-      // if there are no manual mipmaps
-      // set 0 level mipmap and then use GL to generate other mipmap levels
-      if (mipmaps.length > 0 && supportsMips) {
-        for (let i = 0, il = mipmaps.length; i < il; i++) {
-          mipmap = mipmaps[i];
-          state.texImage2D(3553, i, glInternalFormat, glFormat, glType, mipmap);
-        }
-
-        texture.generateMipmaps = false;
-        textureProperties.__maxMipLevel = mipmaps.length - 1;
-      } else {
-        state.texImage2D(3553, 0, glInternalFormat, glFormat, glType, image);
-        textureProperties.__maxMipLevel = 0;
-      }
-    }
-
-    if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
-      generateMipmap(textureType, texture, image.width, image.height);
-    }
-
-    textureProperties.__version = texture.version;
-    if (texture.onUpdate) texture.onUpdate(texture);
-  }
-
-  function uploadCubeTexture(textureProperties, texture, slot) {
-    if (texture.image.length !== 6) return;
-    initTexture(textureProperties, texture);
-    state.activeTexture(33984 + slot);
-    state.bindTexture(34067, textureProperties.__webglTexture);
-
-    _gl.pixelStorei(37440, texture.flipY);
-
-    _gl.pixelStorei(37441, texture.premultiplyAlpha);
-
-    _gl.pixelStorei(3317, texture.unpackAlignment);
-
-    _gl.pixelStorei(37443, 0);
-
-    const isCompressed = texture && (texture.isCompressedTexture || texture.image[0].isCompressedTexture);
-    const isDataTexture = texture.image[0] && texture.image[0].isDataTexture;
-    const cubeImage = [];
-
-    for (let i = 0; i < 6; i++) {
-      if (!isCompressed && !isDataTexture) {
-        cubeImage[i] = resizeImage(texture.image[i], false, true, maxCubemapSize);
-      } else {
-        cubeImage[i] = isDataTexture ? texture.image[i].image : texture.image[i];
-      }
-    }
-
-    const image = cubeImage[0],
-          supportsMips = isPowerOfTwo(image) || isWebGL2,
-          glFormat = utils.convert(texture.format),
-          glType = utils.convert(texture.type),
-          glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
-    setTextureParameters(34067, texture, supportsMips);
-    let mipmaps;
-
-    if (isCompressed) {
-      for (let i = 0; i < 6; i++) {
-        mipmaps = cubeImage[i].mipmaps;
-
-        for (let j = 0; j < mipmaps.length; j++) {
-          const mipmap = mipmaps[j];
-
-          if (texture.format !== RGBAFormat && texture.format !== RGBFormat) {
-            if (glFormat !== null) {
-              state.compressedTexImage2D(34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data);
-            } else {
-              console.warn('THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()');
-            }
-          } else {
-            state.texImage2D(34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
-          }
-        }
-      }
-
-      textureProperties.__maxMipLevel = mipmaps.length - 1;
-    } else {
-      mipmaps = texture.mipmaps;
-
-      for (let i = 0; i < 6; i++) {
-        if (isDataTexture) {
-          state.texImage2D(34069 + i, 0, glInternalFormat, cubeImage[i].width, cubeImage[i].height, 0, glFormat, glType, cubeImage[i].data);
-
-          for (let j = 0; j < mipmaps.length; j++) {
-            const mipmap = mipmaps[j];
-            const mipmapImage = mipmap.image[i].image;
-            state.texImage2D(34069 + i, j + 1, glInternalFormat, mipmapImage.width, mipmapImage.height, 0, glFormat, glType, mipmapImage.data);
-          }
-        } else {
-          state.texImage2D(34069 + i, 0, glInternalFormat, glFormat, glType, cubeImage[i]);
-
-          for (let j = 0; j < mipmaps.length; j++) {
-            const mipmap = mipmaps[j];
-            state.texImage2D(34069 + i, j + 1, glInternalFormat, glFormat, glType, mipmap.image[i]);
-          }
-        }
-      }
-
-      textureProperties.__maxMipLevel = mipmaps.length;
-    }
-
-    if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
-      // We assume images for cube map have the same size.
-      generateMipmap(34067, texture, image.width, image.height);
-    }
-
-    textureProperties.__version = texture.version;
-    if (texture.onUpdate) texture.onUpdate(texture);
-  } // Render targets
-  // Setup storage for target texture and bind it to correct framebuffer
-
-
-  function setupFrameBufferTexture(framebuffer, renderTarget, attachment, textureTarget) {
-    const texture = renderTarget.texture;
-    const glFormat = utils.convert(texture.format);
-    const glType = utils.convert(texture.type);
-    const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
-
-    if (textureTarget === 32879 || textureTarget === 35866) {
-      state.texImage3D(textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, renderTarget.depth, 0, glFormat, glType, null);
-    } else {
-      state.texImage2D(textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null);
-    }
-
-    _gl.bindFramebuffer(36160, framebuffer);
-
-    _gl.framebufferTexture2D(36160, attachment, textureTarget, properties.get(texture).__webglTexture, 0);
-
-    _gl.bindFramebuffer(36160, null);
-  } // Setup storage for internal depth/stencil buffers and bind to correct framebuffer
-
-
-  function setupRenderBufferStorage(renderbuffer, renderTarget, isMultisample) {
-    _gl.bindRenderbuffer(36161, renderbuffer);
-
-    if (renderTarget.depthBuffer && !renderTarget.stencilBuffer) {
-      let glInternalFormat = 33189;
-
-      if (isMultisample) {
-        const depthTexture = renderTarget.depthTexture;
-
-        if (depthTexture && depthTexture.isDepthTexture) {
-          if (depthTexture.type === FloatType) {
-            glInternalFormat = 36012;
-          } else if (depthTexture.type === UnsignedIntType) {
-            glInternalFormat = 33190;
-          }
-        }
-
-        const samples = getRenderTargetSamples(renderTarget);
-
-        _gl.renderbufferStorageMultisample(36161, samples, glInternalFormat, renderTarget.width, renderTarget.height);
-      } else {
-        _gl.renderbufferStorage(36161, glInternalFormat, renderTarget.width, renderTarget.height);
-      }
-
-      _gl.framebufferRenderbuffer(36160, 36096, 36161, renderbuffer);
-    } else if (renderTarget.depthBuffer && renderTarget.stencilBuffer) {
-      if (isMultisample) {
-        const samples = getRenderTargetSamples(renderTarget);
-
-        _gl.renderbufferStorageMultisample(36161, samples, 35056, renderTarget.width, renderTarget.height);
-      } else {
-        _gl.renderbufferStorage(36161, 34041, renderTarget.width, renderTarget.height);
-      }
-
-      _gl.framebufferRenderbuffer(36160, 33306, 36161, renderbuffer);
-    } else {
-      const texture = renderTarget.texture;
-      const glFormat = utils.convert(texture.format);
-      const glType = utils.convert(texture.type);
-      const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
-
-      if (isMultisample) {
-        const samples = getRenderTargetSamples(renderTarget);
-
-        _gl.renderbufferStorageMultisample(36161, samples, glInternalFormat, renderTarget.width, renderTarget.height);
-      } else {
-        _gl.renderbufferStorage(36161, glInternalFormat, renderTarget.width, renderTarget.height);
-      }
-    }
-
-    _gl.bindRenderbuffer(36161, null);
-  } // Setup resources for a Depth Texture for a FBO (needs an extension)
-
-
-  function setupDepthTexture(framebuffer, renderTarget) {
-    const isCube = renderTarget && renderTarget.isWebGLCubeRenderTarget;
-    if (isCube) throw new Error('Depth Texture with cube render targets is not supported');
-
-    _gl.bindFramebuffer(36160, framebuffer);
-
-    if (!(renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture)) {
-      throw new Error('renderTarget.depthTexture must be an instance of THREE.DepthTexture');
-    } // upload an empty depth texture with framebuffer size
-
-
-    if (!properties.get(renderTarget.depthTexture).__webglTexture || renderTarget.depthTexture.image.width !== renderTarget.width || renderTarget.depthTexture.image.height !== renderTarget.height) {
-      renderTarget.depthTexture.image.width = renderTarget.width;
-      renderTarget.depthTexture.image.height = renderTarget.height;
-      renderTarget.depthTexture.needsUpdate = true;
-    }
-
-    setTexture2D(renderTarget.depthTexture, 0);
-
-    const webglDepthTexture = properties.get(renderTarget.depthTexture).__webglTexture;
-
-    if (renderTarget.depthTexture.format === DepthFormat) {
-      _gl.framebufferTexture2D(36160, 36096, 3553, webglDepthTexture, 0);
-    } else if (renderTarget.depthTexture.format === DepthStencilFormat) {
-      _gl.framebufferTexture2D(36160, 33306, 3553, webglDepthTexture, 0);
-    } else {
-      throw new Error('Unknown depthTexture format');
-    }
-  } // Setup GL resources for a non-texture depth buffer
-
-
-  function setupDepthRenderbuffer(renderTarget) {
-    const renderTargetProperties = properties.get(renderTarget);
-    const isCube = renderTarget.isWebGLCubeRenderTarget === true;
-
-    if (renderTarget.depthTexture) {
-      if (isCube) throw new Error('target.depthTexture not supported in Cube render targets');
-      setupDepthTexture(renderTargetProperties.__webglFramebuffer, renderTarget);
-    } else {
-      if (isCube) {
-        renderTargetProperties.__webglDepthbuffer = [];
-
-        for (let i = 0; i < 6; i++) {
-          _gl.bindFramebuffer(36160, renderTargetProperties.__webglFramebuffer[i]);
-
-          renderTargetProperties.__webglDepthbuffer[i] = _gl.createRenderbuffer();
-          setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer[i], renderTarget, false);
-        }
-      } else {
-        _gl.bindFramebuffer(36160, renderTargetProperties.__webglFramebuffer);
-
-        renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
-        setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer, renderTarget, false);
-      }
-    }
-
-    _gl.bindFramebuffer(36160, null);
-  } // Set up GL resources for the render target
-
-
-  function setupRenderTarget(renderTarget) {
-    const texture = renderTarget.texture;
-    const renderTargetProperties = properties.get(renderTarget);
-    const textureProperties = properties.get(texture);
-    renderTarget.addEventListener('dispose', onRenderTargetDispose);
-    textureProperties.__webglTexture = _gl.createTexture();
-    info.memory.textures++;
-    const isCube = renderTarget.isWebGLCubeRenderTarget === true;
-    const isMultisample = renderTarget.isWebGLMultisampleRenderTarget === true;
-    const isRenderTarget3D = texture.isDataTexture3D || texture.isDataTexture2DArray;
-    const supportsMips = isPowerOfTwo(renderTarget) || isWebGL2; // Handles WebGL2 RGBFormat fallback - #18858
-
-    if (isWebGL2 && texture.format === RGBFormat && (texture.type === FloatType || texture.type === HalfFloatType)) {
-      texture.format = RGBAFormat;
-      console.warn('THREE.WebGLRenderer: Rendering to textures with RGB format is not supported. Using RGBA format instead.');
-    } // Setup framebuffer
-
-
-    if (isCube) {
-      renderTargetProperties.__webglFramebuffer = [];
-
-      for (let i = 0; i < 6; i++) {
-        renderTargetProperties.__webglFramebuffer[i] = _gl.createFramebuffer();
-      }
-    } else {
-      renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();
-
-      if (isMultisample) {
-        if (isWebGL2) {
-          renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer();
-          renderTargetProperties.__webglColorRenderbuffer = _gl.createRenderbuffer();
-
-          _gl.bindRenderbuffer(36161, renderTargetProperties.__webglColorRenderbuffer);
-
-          const glFormat = utils.convert(texture.format);
-          const glType = utils.convert(texture.type);
-          const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType);
-          const samples = getRenderTargetSamples(renderTarget);
-
-          _gl.renderbufferStorageMultisample(36161, samples, glInternalFormat, renderTarget.width, renderTarget.height);
-
-          _gl.bindFramebuffer(36160, renderTargetProperties.__webglMultisampledFramebuffer);
-
-          _gl.framebufferRenderbuffer(36160, 36064, 36161, renderTargetProperties.__webglColorRenderbuffer);
-
-          _gl.bindRenderbuffer(36161, null);
-
-          if (renderTarget.depthBuffer) {
-            renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer();
-            setupRenderBufferStorage(renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true);
-          }
-
-          _gl.bindFramebuffer(36160, null);
-        } else {
-          console.warn('THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.');
-        }
-      }
-    } // Setup color buffer
-
-
-    if (isCube) {
-      state.bindTexture(34067, textureProperties.__webglTexture);
-      setTextureParameters(34067, texture, supportsMips);
-
-      for (let i = 0; i < 6; i++) {
-        setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer[i], renderTarget, 36064, 34069 + i);
-      }
-
-      if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
-        generateMipmap(34067, texture, renderTarget.width, renderTarget.height);
-      }
-
-      state.bindTexture(34067, null);
-    } else {
-      let glTextureType = 3553;
-
-      if (isRenderTarget3D) {
-        // Render targets containing layers, i.e: Texture 3D and 2d arrays
-        if (isWebGL2) {
-          const isTexture3D = texture.isDataTexture3D;
-          glTextureType = isTexture3D ? 32879 : 35866;
-        } else {
-          console.warn('THREE.DataTexture3D and THREE.DataTexture2DArray only supported with WebGL2.');
-        }
-      }
-
-      state.bindTexture(glTextureType, textureProperties.__webglTexture);
-      setTextureParameters(glTextureType, texture, supportsMips);
-      setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer, renderTarget, 36064, glTextureType);
-
-      if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
-        generateMipmap(3553, texture, renderTarget.width, renderTarget.height);
-      }
-
-      state.bindTexture(3553, null);
-    } // Setup depth and stencil buffers
-
-
-    if (renderTarget.depthBuffer) {
-      setupDepthRenderbuffer(renderTarget);
-    }
-  }
-
-  function updateRenderTargetMipmap(renderTarget) {
-    const texture = renderTarget.texture;
-    const supportsMips = isPowerOfTwo(renderTarget) || isWebGL2;
-
-    if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
-      const target = renderTarget.isWebGLCubeRenderTarget ? 34067 : 3553;
-
-      const webglTexture = properties.get(texture).__webglTexture;
-
-      state.bindTexture(target, webglTexture);
-      generateMipmap(target, texture, renderTarget.width, renderTarget.height);
-      state.bindTexture(target, null);
-    }
-  }
-
-  function updateMultisampleRenderTarget(renderTarget) {
-    if (renderTarget.isWebGLMultisampleRenderTarget) {
-      if (isWebGL2) {
-        const renderTargetProperties = properties.get(renderTarget);
-
-        _gl.bindFramebuffer(36008, renderTargetProperties.__webglMultisampledFramebuffer);
-
-        _gl.bindFramebuffer(36009, renderTargetProperties.__webglFramebuffer);
-
-        const width = renderTarget.width;
-        const height = renderTarget.height;
-        let mask = 16384;
-        if (renderTarget.depthBuffer) mask |= 256;
-        if (renderTarget.stencilBuffer) mask |= 1024;
-
-        _gl.blitFramebuffer(0, 0, width, height, 0, 0, width, height, mask, 9728);
-
-        _gl.bindFramebuffer(36160, renderTargetProperties.__webglMultisampledFramebuffer); // see #18905
-
-      } else {
-        console.warn('THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.');
-      }
-    }
-  }
-
-  function getRenderTargetSamples(renderTarget) {
-    return isWebGL2 && renderTarget.isWebGLMultisampleRenderTarget ? Math.min(maxSamples, renderTarget.samples) : 0;
-  }
-
-  function updateVideoTexture(texture) {
-    const frame = info.render.frame; // Check the last frame we updated the VideoTexture
-
-    if (_videoTextures.get(texture) !== frame) {
-      _videoTextures.set(texture, frame);
-
-      texture.update();
-    }
-  } // backwards compatibility
-
-
-  let warnedTexture2D = false;
-  let warnedTextureCube = false;
-
-  function safeSetTexture2D(texture, slot) {
-    if (texture && texture.isWebGLRenderTarget) {
-      if (warnedTexture2D === false) {
-        console.warn('THREE.WebGLTextures.safeSetTexture2D: don\'t use render targets as textures. Use their .texture property instead.');
-        warnedTexture2D = true;
-      }
-
-      texture = texture.texture;
-    }
-
-    setTexture2D(texture, slot);
-  }
-
-  function safeSetTextureCube(texture, slot) {
-    if (texture && texture.isWebGLCubeRenderTarget) {
-      if (warnedTextureCube === false) {
-        console.warn('THREE.WebGLTextures.safeSetTextureCube: don\'t use cube render targets as textures. Use their .texture property instead.');
-        warnedTextureCube = true;
-      }
-
-      texture = texture.texture;
-    }
-
-    setTextureCube(texture, slot);
-  } //
-
-
-  this.allocateTextureUnit = allocateTextureUnit;
-  this.resetTextureUnits = resetTextureUnits;
-  this.setTexture2D = setTexture2D;
-  this.setTexture2DArray = setTexture2DArray;
-  this.setTexture3D = setTexture3D;
-  this.setTextureCube = setTextureCube;
-  this.setupRenderTarget = setupRenderTarget;
-  this.updateRenderTargetMipmap = updateRenderTargetMipmap;
-  this.updateMultisampleRenderTarget = updateMultisampleRenderTarget;
-  this.safeSetTexture2D = safeSetTexture2D;
-  this.safeSetTextureCube = safeSetTextureCube;
-}
-
-function WebGLUtils(gl, extensions, capabilities) {
-  const isWebGL2 = capabilities.isWebGL2;
-
-  function convert(p) {
-    let extension;
-    if (p === UnsignedByteType) return 5121;
-    if (p === UnsignedShort4444Type) return 32819;
-    if (p === UnsignedShort5551Type) return 32820;
-    if (p === UnsignedShort565Type) return 33635;
-    if (p === ByteType) return 5120;
-    if (p === ShortType) return 5122;
-    if (p === UnsignedShortType) return 5123;
-    if (p === IntType) return 5124;
-    if (p === UnsignedIntType) return 5125;
-    if (p === FloatType) return 5126;
-
-    if (p === HalfFloatType) {
-      if (isWebGL2) return 5131;
-      extension = extensions.get('OES_texture_half_float');
-
-      if (extension !== null) {
-        return extension.HALF_FLOAT_OES;
-      } else {
-        return null;
-      }
-    }
-
-    if (p === AlphaFormat) return 6406;
-    if (p === RGBFormat) return 6407;
-    if (p === RGBAFormat) return 6408;
-    if (p === LuminanceFormat) return 6409;
-    if (p === LuminanceAlphaFormat) return 6410;
-    if (p === DepthFormat) return 6402;
-    if (p === DepthStencilFormat) return 34041;
-    if (p === RedFormat) return 6403; // WebGL2 formats.
-
-    if (p === RedIntegerFormat) return 36244;
-    if (p === RGFormat) return 33319;
-    if (p === RGIntegerFormat) return 33320;
-    if (p === RGBIntegerFormat) return 36248;
-    if (p === RGBAIntegerFormat) return 36249;
-
-    if (p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format) {
-      extension = extensions.get('WEBGL_compressed_texture_s3tc');
-
-      if (extension !== null) {
-        if (p === RGB_S3TC_DXT1_Format) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
-        if (p === RGBA_S3TC_DXT1_Format) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
-        if (p === RGBA_S3TC_DXT3_Format) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
-        if (p === RGBA_S3TC_DXT5_Format) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
-      } else {
-        return null;
-      }
-    }
-
-    if (p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format) {
-      extension = extensions.get('WEBGL_compressed_texture_pvrtc');
-
-      if (extension !== null) {
-        if (p === RGB_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
-        if (p === RGB_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
-        if (p === RGBA_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
-        if (p === RGBA_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
-      } else {
-        return null;
-      }
-    }
-
-    if (p === RGB_ETC1_Format) {
-      extension = extensions.get('WEBGL_compressed_texture_etc1');
-
-      if (extension !== null) {
-        return extension.COMPRESSED_RGB_ETC1_WEBGL;
-      } else {
-        return null;
-      }
-    }
-
-    if (p === RGB_ETC2_Format || p === RGBA_ETC2_EAC_Format) {
-      extension = extensions.get('WEBGL_compressed_texture_etc');
-
-      if (extension !== null) {
-        if (p === RGB_ETC2_Format) return extension.COMPRESSED_RGB8_ETC2;
-        if (p === RGBA_ETC2_EAC_Format) return extension.COMPRESSED_RGBA8_ETC2_EAC;
-      }
-    }
-
-    if (p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format || p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format || p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format || p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format || p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format || p === SRGB8_ALPHA8_ASTC_4x4_Format || p === SRGB8_ALPHA8_ASTC_5x4_Format || p === SRGB8_ALPHA8_ASTC_5x5_Format || p === SRGB8_ALPHA8_ASTC_6x5_Format || p === SRGB8_ALPHA8_ASTC_6x6_Format || p === SRGB8_ALPHA8_ASTC_8x5_Format || p === SRGB8_ALPHA8_ASTC_8x6_Format || p === SRGB8_ALPHA8_ASTC_8x8_Format || p === SRGB8_ALPHA8_ASTC_10x5_Format || p === SRGB8_ALPHA8_ASTC_10x6_Format || p === SRGB8_ALPHA8_ASTC_10x8_Format || p === SRGB8_ALPHA8_ASTC_10x10_Format || p === SRGB8_ALPHA8_ASTC_12x10_Format || p === SRGB8_ALPHA8_ASTC_12x12_Format) {
-      extension = extensions.get('WEBGL_compressed_texture_astc');
-
-      if (extension !== null) {
-        // TODO Complete?
-        return p;
-      } else {
-        return null;
-      }
-    }
-
-    if (p === RGBA_BPTC_Format) {
-      extension = extensions.get('EXT_texture_compression_bptc');
-
-      if (extension !== null) {
-        // TODO Complete?
-        return p;
-      } else {
-        return null;
-      }
-    }
-
-    if (p === UnsignedInt248Type) {
-      if (isWebGL2) return 34042;
-      extension = extensions.get('WEBGL_depth_texture');
-
-      if (extension !== null) {
-        return extension.UNSIGNED_INT_24_8_WEBGL;
-      } else {
-        return null;
-      }
-    }
-  }
-
-  return {
-    convert: convert
-  };
-}
-
-function ArrayCamera(array = []) {
-  PerspectiveCamera.call(this);
-  this.cameras = array;
-}
-
-ArrayCamera.prototype = Object.assign(Object.create(PerspectiveCamera.prototype), {
-  constructor: ArrayCamera,
-  isArrayCamera: true
-});
-
-class Group extends Object3D {
-  constructor() {
-    super();
-    this.type = 'Group';
-  }
-
-}
-
-exports.Group = Group;
-Group.prototype.isGroup = true;
-
-function WebXRController() {
-  this._targetRay = null;
-  this._grip = null;
-  this._hand = null;
-}
-
-Object.assign(WebXRController.prototype, {
-  constructor: WebXRController,
-  getHandSpace: function () {
-    if (this._hand === null) {
-      this._hand = new Group();
-      this._hand.matrixAutoUpdate = false;
-      this._hand.visible = false;
-      this._hand.joints = {};
-      this._hand.inputState = {
-        pinching: false
-      };
-    }
-
-    return this._hand;
-  },
-  getTargetRaySpace: function () {
-    if (this._targetRay === null) {
-      this._targetRay = new Group();
-      this._targetRay.matrixAutoUpdate = false;
-      this._targetRay.visible = false;
-    }
-
-    return this._targetRay;
-  },
-  getGripSpace: function () {
-    if (this._grip === null) {
-      this._grip = new Group();
-      this._grip.matrixAutoUpdate = false;
-      this._grip.visible = false;
-    }
-
-    return this._grip;
-  },
-  dispatchEvent: function (event) {
-    if (this._targetRay !== null) {
-      this._targetRay.dispatchEvent(event);
-    }
-
-    if (this._grip !== null) {
-      this._grip.dispatchEvent(event);
-    }
-
-    if (this._hand !== null) {
-      this._hand.dispatchEvent(event);
-    }
-
-    return this;
-  },
-  disconnect: function (inputSource) {
-    this.dispatchEvent({
-      type: 'disconnected',
-      data: inputSource
-    });
-
-    if (this._targetRay !== null) {
-      this._targetRay.visible = false;
-    }
-
-    if (this._grip !== null) {
-      this._grip.visible = false;
-    }
-
-    if (this._hand !== null) {
-      this._hand.visible = false;
-    }
-
-    return this;
-  },
-  update: function (inputSource, frame, referenceSpace) {
-    let inputPose = null;
-    let gripPose = null;
-    let handPose = null;
-    const targetRay = this._targetRay;
-    const grip = this._grip;
-    const hand = this._hand;
-
-    if (inputSource && frame.session.visibilityState !== 'visible-blurred') {
-      if (hand && inputSource.hand) {
-        handPose = true;
-
-        for (const inputjoint of inputSource.hand.values()) {
-          // Update the joints groups with the XRJoint poses
-          const jointPose = frame.getJointPose(inputjoint, referenceSpace);
-
-          if (hand.joints[inputjoint.jointName] === undefined) {
-            // The transform of this joint will be updated with the joint pose on each frame
-            const joint = new Group();
-            joint.matrixAutoUpdate = false;
-            joint.visible = false;
-            hand.joints[inputjoint.jointName] = joint; // ??
-
-            hand.add(joint);
-          }
-
-          const joint = hand.joints[inputjoint.jointName];
-
-          if (jointPose !== null) {
-            joint.matrix.fromArray(jointPose.transform.matrix);
-            joint.matrix.decompose(joint.position, joint.rotation, joint.scale);
-            joint.jointRadius = jointPose.radius;
-          }
-
-          joint.visible = jointPose !== null;
-        } // Custom events
-        // Check pinchz
-
-
-        const indexTip = hand.joints['index-finger-tip'];
-        const thumbTip = hand.joints['thumb-tip'];
-        const distance = indexTip.position.distanceTo(thumbTip.position);
-        const distanceToPinch = 0.02;
-        const threshold = 0.005;
-
-        if (hand.inputState.pinching && distance > distanceToPinch + threshold) {
-          hand.inputState.pinching = false;
-          this.dispatchEvent({
-            type: 'pinchend',
-            handedness: inputSource.handedness,
-            target: this
-          });
-        } else if (!hand.inputState.pinching && distance <= distanceToPinch - threshold) {
-          hand.inputState.pinching = true;
-          this.dispatchEvent({
-            type: 'pinchstart',
-            handedness: inputSource.handedness,
-            target: this
-          });
-        }
-      } else {
-        if (targetRay !== null) {
-          inputPose = frame.getPose(inputSource.targetRaySpace, referenceSpace);
-
-          if (inputPose !== null) {
-            targetRay.matrix.fromArray(inputPose.transform.matrix);
-            targetRay.matrix.decompose(targetRay.position, targetRay.rotation, targetRay.scale);
-          }
-        }
-
-        if (grip !== null && inputSource.gripSpace) {
-          gripPose = frame.getPose(inputSource.gripSpace, referenceSpace);
-
-          if (gripPose !== null) {
-            grip.matrix.fromArray(gripPose.transform.matrix);
-            grip.matrix.decompose(grip.position, grip.rotation, grip.scale);
-          }
-        }
-      }
-    }
-
-    if (targetRay !== null) {
-      targetRay.visible = inputPose !== null;
-    }
-
-    if (grip !== null) {
-      grip.visible = gripPose !== null;
-    }
-
-    if (hand !== null) {
-      hand.visible = handPose !== null;
-    }
-
-    return this;
-  }
-});
-
-function WebXRManager(renderer, gl) {
-  const scope = this;
-  let session = null;
-  let framebufferScaleFactor = 1.0;
-  let referenceSpace = null;
-  let referenceSpaceType = 'local-floor';
-  let pose = null;
-  const controllers = [];
-  const inputSourcesMap = new Map(); //
-
-  const cameraL = new PerspectiveCamera();
-  cameraL.layers.enable(1);
-  cameraL.viewport = new Vector4();
-  const cameraR = new PerspectiveCamera();
-  cameraR.layers.enable(2);
-  cameraR.viewport = new Vector4();
-  const cameras = [cameraL, cameraR];
-  const cameraVR = new ArrayCamera();
-  cameraVR.layers.enable(1);
-  cameraVR.layers.enable(2);
-  let _currentDepthNear = null;
-  let _currentDepthFar = null; //
-
-  this.enabled = false;
-  this.isPresenting = false;
-
-  this.getController = function (index) {
-    let controller = controllers[index];
-
-    if (controller === undefined) {
-      controller = new WebXRController();
-      controllers[index] = controller;
-    }
-
-    return controller.getTargetRaySpace();
-  };
-
-  this.getControllerGrip = function (index) {
-    let controller = controllers[index];
-
-    if (controller === undefined) {
-      controller = new WebXRController();
-      controllers[index] = controller;
-    }
-
-    return controller.getGripSpace();
-  };
-
-  this.getHand = function (index) {
-    let controller = controllers[index];
-
-    if (controller === undefined) {
-      controller = new WebXRController();
-      controllers[index] = controller;
-    }
-
-    return controller.getHandSpace();
-  }; //
-
-
-  function onSessionEvent(event) {
-    const controller = inputSourcesMap.get(event.inputSource);
-
-    if (controller) {
-      controller.dispatchEvent({
-        type: event.type,
-        data: event.inputSource
-      });
-    }
-  }
-
-  function onSessionEnd() {
-    inputSourcesMap.forEach(function (controller, inputSource) {
-      controller.disconnect(inputSource);
-    });
-    inputSourcesMap.clear();
-    _currentDepthNear = null;
-    _currentDepthFar = null; //
-
-    renderer.setFramebuffer(null);
-    renderer.setRenderTarget(renderer.getRenderTarget()); // Hack #15830
-
-    animation.stop();
-    scope.isPresenting = false;
-    scope.dispatchEvent({
-      type: 'sessionend'
-    });
-  }
-
-  this.setFramebufferScaleFactor = function (value) {
-    framebufferScaleFactor = value;
-
-    if (scope.isPresenting === true) {
-      console.warn('THREE.WebXRManager: Cannot change framebuffer scale while presenting.');
-    }
-  };
-
-  this.setReferenceSpaceType = function (value) {
-    referenceSpaceType = value;
-
-    if (scope.isPresenting === true) {
-      console.warn('THREE.WebXRManager: Cannot change reference space type while presenting.');
-    }
-  };
-
-  this.getReferenceSpace = function () {
-    return referenceSpace;
-  };
-
-  this.getSession = function () {
-    return session;
-  };
-
-  this.setSession = async function (value) {
-    session = value;
-
-    if (session !== null) {
-      session.addEventListener('select', onSessionEvent);
-      session.addEventListener('selectstart', onSessionEvent);
-      session.addEventListener('selectend', onSessionEvent);
-      session.addEventListener('squeeze', onSessionEvent);
-      session.addEventListener('squeezestart', onSessionEvent);
-      session.addEventListener('squeezeend', onSessionEvent);
-      session.addEventListener('end', onSessionEnd);
-      session.addEventListener('inputsourceschange', onInputSourcesChange);
-      const attributes = gl.getContextAttributes();
-
-      if (attributes.xrCompatible !== true) {
-        await gl.makeXRCompatible();
-      }
-
-      const layerInit = {
-        antialias: attributes.antialias,
-        alpha: attributes.alpha,
-        depth: attributes.depth,
-        stencil: attributes.stencil,
-        framebufferScaleFactor: framebufferScaleFactor
-      }; // eslint-disable-next-line no-undef
-
-      const baseLayer = new XRWebGLLayer(session, gl, layerInit);
-      session.updateRenderState({
-        baseLayer: baseLayer
-      });
-      referenceSpace = await session.requestReferenceSpace(referenceSpaceType);
-      animation.setContext(session);
-      animation.start();
-      scope.isPresenting = true;
-      scope.dispatchEvent({
-        type: 'sessionstart'
-      });
-    }
-  };
-
-  function onInputSourcesChange(event) {
-    const inputSources = session.inputSources; // Assign inputSources to available controllers
-
-    for (let i = 0; i < controllers.length; i++) {
-      inputSourcesMap.set(inputSources[i], controllers[i]);
-    } // Notify disconnected
-
-
-    for (let i = 0; i < event.removed.length; i++) {
-      const inputSource = event.removed[i];
-      const controller = inputSourcesMap.get(inputSource);
-
-      if (controller) {
-        controller.dispatchEvent({
-          type: 'disconnected',
-          data: inputSource
-        });
-        inputSourcesMap.delete(inputSource);
-      }
-    } // Notify connected
-
-
-    for (let i = 0; i < event.added.length; i++) {
-      const inputSource = event.added[i];
-      const controller = inputSourcesMap.get(inputSource);
-
-      if (controller) {
-        controller.dispatchEvent({
-          type: 'connected',
-          data: inputSource
-        });
-      }
-    }
-  } //
-
-
-  const cameraLPos = new Vector3();
-  const cameraRPos = new Vector3();
-  /**
-   * Assumes 2 cameras that are parallel and share an X-axis, and that
-   * the cameras' projection and world matrices have already been set.
-   * And that near and far planes are identical for both cameras.
-   * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765
-   */
-
-  function setProjectionFromUnion(camera, cameraL, cameraR) {
-    cameraLPos.setFromMatrixPosition(cameraL.matrixWorld);
-    cameraRPos.setFromMatrixPosition(cameraR.matrixWorld);
-    const ipd = cameraLPos.distanceTo(cameraRPos);
-    const projL = cameraL.projectionMatrix.elements;
-    const projR = cameraR.projectionMatrix.elements; // VR systems will have identical far and near planes, and
-    // most likely identical top and bottom frustum extents.
-    // Use the left camera for these values.
-
-    const near = projL[14] / (projL[10] - 1);
-    const far = projL[14] / (projL[10] + 1);
-    const topFov = (projL[9] + 1) / projL[5];
-    const bottomFov = (projL[9] - 1) / projL[5];
-    const leftFov = (projL[8] - 1) / projL[0];
-    const rightFov = (projR[8] + 1) / projR[0];
-    const left = near * leftFov;
-    const right = near * rightFov; // Calculate the new camera's position offset from the
-    // left camera. xOffset should be roughly half `ipd`.
-
-    const zOffset = ipd / (-leftFov + rightFov);
-    const xOffset = zOffset * -leftFov; // TODO: Better way to apply this offset?
-
-    cameraL.matrixWorld.decompose(camera.position, camera.quaternion, camera.scale);
-    camera.translateX(xOffset);
-    camera.translateZ(zOffset);
-    camera.matrixWorld.compose(camera.position, camera.quaternion, camera.scale);
-    camera.matrixWorldInverse.copy(camera.matrixWorld).invert(); // Find the union of the frustum values of the cameras and scale
-    // the values so that the near plane's position does not change in world space,
-    // although must now be relative to the new union camera.
-
-    const near2 = near + zOffset;
-    const far2 = far + zOffset;
-    const left2 = left - xOffset;
-    const right2 = right + (ipd - xOffset);
-    const top2 = topFov * far / far2 * near2;
-    const bottom2 = bottomFov * far / far2 * near2;
-    camera.projectionMatrix.makePerspective(left2, right2, top2, bottom2, near2, far2);
-  }
-
-  function updateCamera(camera, parent) {
-    if (parent === null) {
-      camera.matrixWorld.copy(camera.matrix);
-    } else {
-      camera.matrixWorld.multiplyMatrices(parent.matrixWorld, camera.matrix);
-    }
-
-    camera.matrixWorldInverse.copy(camera.matrixWorld).invert();
-  }
-
-  this.getCamera = function (camera) {
-    cameraVR.near = cameraR.near = cameraL.near = camera.near;
-    cameraVR.far = cameraR.far = cameraL.far = camera.far;
-
-    if (_currentDepthNear !== cameraVR.near || _currentDepthFar !== cameraVR.far) {
-      // Note that the new renderState won't apply until the next frame. See #18320
-      session.updateRenderState({
-        depthNear: cameraVR.near,
-        depthFar: cameraVR.far
-      });
-      _currentDepthNear = cameraVR.near;
-      _currentDepthFar = cameraVR.far;
-    }
-
-    const parent = camera.parent;
-    const cameras = cameraVR.cameras;
-    updateCamera(cameraVR, parent);
-
-    for (let i = 0; i < cameras.length; i++) {
-      updateCamera(cameras[i], parent);
-    } // update camera and its children
-
-
-    camera.matrixWorld.copy(cameraVR.matrixWorld);
-    camera.matrix.copy(cameraVR.matrix);
-    camera.matrix.decompose(camera.position, camera.quaternion, camera.scale);
-    const children = camera.children;
-
-    for (let i = 0, l = children.length; i < l; i++) {
-      children[i].updateMatrixWorld(true);
-    } // update projection matrix for proper view frustum culling
-
-
-    if (cameras.length === 2) {
-      setProjectionFromUnion(cameraVR, cameraL, cameraR);
-    } else {
-      // assume single camera setup (AR)
-      cameraVR.projectionMatrix.copy(cameraL.projectionMatrix);
-    }
-
-    return cameraVR;
-  }; // Animation Loop
-
-
-  let onAnimationFrameCallback = null;
-
-  function onAnimationFrame(time, frame) {
-    pose = frame.getViewerPose(referenceSpace);
-
-    if (pose !== null) {
-      const views = pose.views;
-      const baseLayer = session.renderState.baseLayer;
-      renderer.setFramebuffer(baseLayer.framebuffer);
-      let cameraVRNeedsUpdate = false; // check if it's necessary to rebuild cameraVR's camera list
-
-      if (views.length !== cameraVR.cameras.length) {
-        cameraVR.cameras.length = 0;
-        cameraVRNeedsUpdate = true;
-      }
-
-      for (let i = 0; i < views.length; i++) {
-        const view = views[i];
-        const viewport = baseLayer.getViewport(view);
-        const camera = cameras[i];
-        camera.matrix.fromArray(view.transform.matrix);
-        camera.projectionMatrix.fromArray(view.projectionMatrix);
-        camera.viewport.set(viewport.x, viewport.y, viewport.width, viewport.height);
-
-        if (i === 0) {
-          cameraVR.matrix.copy(camera.matrix);
-        }
-
-        if (cameraVRNeedsUpdate === true) {
-          cameraVR.cameras.push(camera);
-        }
-      }
-    } //
-
-
-    const inputSources = session.inputSources;
-
-    for (let i = 0; i < controllers.length; i++) {
-      const controller = controllers[i];
-      const inputSource = inputSources[i];
-      controller.update(inputSource, frame, referenceSpace);
-    }
-
-    if (onAnimationFrameCallback) onAnimationFrameCallback(time, frame);
-  }
-
-  const animation = new WebGLAnimation();
-  animation.setAnimationLoop(onAnimationFrame);
-
-  this.setAnimationLoop = function (callback) {
-    onAnimationFrameCallback = callback;
-  };
-
-  this.dispose = function () {};
-}
-
-Object.assign(WebXRManager.prototype, EventDispatcher.prototype);
-
-function WebGLMaterials(properties) {
-  function refreshFogUniforms(uniforms, fog) {
-    uniforms.fogColor.value.copy(fog.color);
-
-    if (fog.isFog) {
-      uniforms.fogNear.value = fog.near;
-      uniforms.fogFar.value = fog.far;
-    } else if (fog.isFogExp2) {
-      uniforms.fogDensity.value = fog.density;
-    }
-  }
-
-  function refreshMaterialUniforms(uniforms, material, pixelRatio, height) {
-    if (material.isMeshBasicMaterial) {
-      refreshUniformsCommon(uniforms, material);
-    } else if (material.isMeshLambertMaterial) {
-      refreshUniformsCommon(uniforms, material);
-      refreshUniformsLambert(uniforms, material);
-    } else if (material.isMeshToonMaterial) {
-      refreshUniformsCommon(uniforms, material);
-      refreshUniformsToon(uniforms, material);
-    } else if (material.isMeshPhongMaterial) {
-      refreshUniformsCommon(uniforms, material);
-      refreshUniformsPhong(uniforms, material);
-    } else if (material.isMeshStandardMaterial) {
-      refreshUniformsCommon(uniforms, material);
-
-      if (material.isMeshPhysicalMaterial) {
-        refreshUniformsPhysical(uniforms, material);
-      } else {
-        refreshUniformsStandard(uniforms, material);
-      }
-    } else if (material.isMeshMatcapMaterial) {
-      refreshUniformsCommon(uniforms, material);
-      refreshUniformsMatcap(uniforms, material);
-    } else if (material.isMeshDepthMaterial) {
-      refreshUniformsCommon(uniforms, material);
-      refreshUniformsDepth(uniforms, material);
-    } else if (material.isMeshDistanceMaterial) {
-      refreshUniformsCommon(uniforms, material);
-      refreshUniformsDistance(uniforms, material);
-    } else if (material.isMeshNormalMaterial) {
-      refreshUniformsCommon(uniforms, material);
-      refreshUniformsNormal(uniforms, material);
-    } else if (material.isLineBasicMaterial) {
-      refreshUniformsLine(uniforms, material);
-
-      if (material.isLineDashedMaterial) {
-        refreshUniformsDash(uniforms, material);
-      }
-    } else if (material.isPointsMaterial) {
-      refreshUniformsPoints(uniforms, material, pixelRatio, height);
-    } else if (material.isSpriteMaterial) {
-      refreshUniformsSprites(uniforms, material);
-    } else if (material.isShadowMaterial) {
-      uniforms.color.value.copy(material.color);
-      uniforms.opacity.value = material.opacity;
-    } else if (material.isShaderMaterial) {
-      material.uniformsNeedUpdate = false; // #15581
-    }
-  }
-
-  function refreshUniformsCommon(uniforms, material) {
-    uniforms.opacity.value = material.opacity;
-
-    if (material.color) {
-      uniforms.diffuse.value.copy(material.color);
-    }
-
-    if (material.emissive) {
-      uniforms.emissive.value.copy(material.emissive).multiplyScalar(material.emissiveIntensity);
-    }
-
-    if (material.map) {
-      uniforms.map.value = material.map;
-    }
-
-    if (material.alphaMap) {
-      uniforms.alphaMap.value = material.alphaMap;
-    }
-
-    if (material.specularMap) {
-      uniforms.specularMap.value = material.specularMap;
-    }
-
-    const envMap = properties.get(material).envMap;
-
-    if (envMap) {
-      uniforms.envMap.value = envMap;
-      uniforms.flipEnvMap.value = envMap.isCubeTexture && envMap._needsFlipEnvMap ? -1 : 1;
-      uniforms.reflectivity.value = material.reflectivity;
-      uniforms.refractionRatio.value = material.refractionRatio;
-
-      const maxMipLevel = properties.get(envMap).__maxMipLevel;
-
-      if (maxMipLevel !== undefined) {
-        uniforms.maxMipLevel.value = maxMipLevel;
-      }
-    }
-
-    if (material.lightMap) {
-      uniforms.lightMap.value = material.lightMap;
-      uniforms.lightMapIntensity.value = material.lightMapIntensity;
-    }
-
-    if (material.aoMap) {
-      uniforms.aoMap.value = material.aoMap;
-      uniforms.aoMapIntensity.value = material.aoMapIntensity;
-    } // uv repeat and offset setting priorities
-    // 1. color map
-    // 2. specular map
-    // 3. displacementMap map
-    // 4. normal map
-    // 5. bump map
-    // 6. roughnessMap map
-    // 7. metalnessMap map
-    // 8. alphaMap map
-    // 9. emissiveMap map
-    // 10. clearcoat map
-    // 11. clearcoat normal map
-    // 12. clearcoat roughnessMap map
-
-
-    let uvScaleMap;
-
-    if (material.map) {
-      uvScaleMap = material.map;
-    } else if (material.specularMap) {
-      uvScaleMap = material.specularMap;
-    } else if (material.displacementMap) {
-      uvScaleMap = material.displacementMap;
-    } else if (material.normalMap) {
-      uvScaleMap = material.normalMap;
-    } else if (material.bumpMap) {
-      uvScaleMap = material.bumpMap;
-    } else if (material.roughnessMap) {
-      uvScaleMap = material.roughnessMap;
-    } else if (material.metalnessMap) {
-      uvScaleMap = material.metalnessMap;
-    } else if (material.alphaMap) {
-      uvScaleMap = material.alphaMap;
-    } else if (material.emissiveMap) {
-      uvScaleMap = material.emissiveMap;
-    } else if (material.clearcoatMap) {
-      uvScaleMap = material.clearcoatMap;
-    } else if (material.clearcoatNormalMap) {
-      uvScaleMap = material.clearcoatNormalMap;
-    } else if (material.clearcoatRoughnessMap) {
-      uvScaleMap = material.clearcoatRoughnessMap;
-    }
-
-    if (uvScaleMap !== undefined) {
-      // backwards compatibility
-      if (uvScaleMap.isWebGLRenderTarget) {
-        uvScaleMap = uvScaleMap.texture;
-      }
-
-      if (uvScaleMap.matrixAutoUpdate === true) {
-        uvScaleMap.updateMatrix();
-      }
-
-      uniforms.uvTransform.value.copy(uvScaleMap.matrix);
-    } // uv repeat and offset setting priorities for uv2
-    // 1. ao map
-    // 2. light map
-
-
-    let uv2ScaleMap;
-
-    if (material.aoMap) {
-      uv2ScaleMap = material.aoMap;
-    } else if (material.lightMap) {
-      uv2ScaleMap = material.lightMap;
-    }
-
-    if (uv2ScaleMap !== undefined) {
-      // backwards compatibility
-      if (uv2ScaleMap.isWebGLRenderTarget) {
-        uv2ScaleMap = uv2ScaleMap.texture;
-      }
-
-      if (uv2ScaleMap.matrixAutoUpdate === true) {
-        uv2ScaleMap.updateMatrix();
-      }
-
-      uniforms.uv2Transform.value.copy(uv2ScaleMap.matrix);
-    }
-  }
-
-  function refreshUniformsLine(uniforms, material) {
-    uniforms.diffuse.value.copy(material.color);
-    uniforms.opacity.value = material.opacity;
-  }
-
-  function refreshUniformsDash(uniforms, material) {
-    uniforms.dashSize.value = material.dashSize;
-    uniforms.totalSize.value = material.dashSize + material.gapSize;
-    uniforms.scale.value = material.scale;
-  }
-
-  function refreshUniformsPoints(uniforms, material, pixelRatio, height) {
-    uniforms.diffuse.value.copy(material.color);
-    uniforms.opacity.value = material.opacity;
-    uniforms.size.value = material.size * pixelRatio;
-    uniforms.scale.value = height * 0.5;
-
-    if (material.map) {
-      uniforms.map.value = material.map;
-    }
-
-    if (material.alphaMap) {
-      uniforms.alphaMap.value = material.alphaMap;
-    } // uv repeat and offset setting priorities
-    // 1. color map
-    // 2. alpha map
-
-
-    let uvScaleMap;
-
-    if (material.map) {
-      uvScaleMap = material.map;
-    } else if (material.alphaMap) {
-      uvScaleMap = material.alphaMap;
-    }
-
-    if (uvScaleMap !== undefined) {
-      if (uvScaleMap.matrixAutoUpdate === true) {
-        uvScaleMap.updateMatrix();
-      }
-
-      uniforms.uvTransform.value.copy(uvScaleMap.matrix);
-    }
-  }
-
-  function refreshUniformsSprites(uniforms, material) {
-    uniforms.diffuse.value.copy(material.color);
-    uniforms.opacity.value = material.opacity;
-    uniforms.rotation.value = material.rotation;
-
-    if (material.map) {
-      uniforms.map.value = material.map;
-    }
-
-    if (material.alphaMap) {
-      uniforms.alphaMap.value = material.alphaMap;
-    } // uv repeat and offset setting priorities
-    // 1. color map
-    // 2. alpha map
-
-
-    let uvScaleMap;
-
-    if (material.map) {
-      uvScaleMap = material.map;
-    } else if (material.alphaMap) {
-      uvScaleMap = material.alphaMap;
-    }
-
-    if (uvScaleMap !== undefined) {
-      if (uvScaleMap.matrixAutoUpdate === true) {
-        uvScaleMap.updateMatrix();
-      }
-
-      uniforms.uvTransform.value.copy(uvScaleMap.matrix);
-    }
-  }
-
-  function refreshUniformsLambert(uniforms, material) {
-    if (material.emissiveMap) {
-      uniforms.emissiveMap.value = material.emissiveMap;
-    }
-  }
-
-  function refreshUniformsPhong(uniforms, material) {
-    uniforms.specular.value.copy(material.specular);
-    uniforms.shininess.value = Math.max(material.shininess, 1e-4); // to prevent pow( 0.0, 0.0 )
-
-    if (material.emissiveMap) {
-      uniforms.emissiveMap.value = material.emissiveMap;
-    }
-
-    if (material.bumpMap) {
-      uniforms.bumpMap.value = material.bumpMap;
-      uniforms.bumpScale.value = material.bumpScale;
-      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
-    }
-
-    if (material.normalMap) {
-      uniforms.normalMap.value = material.normalMap;
-      uniforms.normalScale.value.copy(material.normalScale);
-      if (material.side === BackSide) uniforms.normalScale.value.negate();
-    }
-
-    if (material.displacementMap) {
-      uniforms.displacementMap.value = material.displacementMap;
-      uniforms.displacementScale.value = material.displacementScale;
-      uniforms.displacementBias.value = material.displacementBias;
-    }
-  }
-
-  function refreshUniformsToon(uniforms, material) {
-    if (material.gradientMap) {
-      uniforms.gradientMap.value = material.gradientMap;
-    }
-
-    if (material.emissiveMap) {
-      uniforms.emissiveMap.value = material.emissiveMap;
-    }
-
-    if (material.bumpMap) {
-      uniforms.bumpMap.value = material.bumpMap;
-      uniforms.bumpScale.value = material.bumpScale;
-      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
-    }
-
-    if (material.normalMap) {
-      uniforms.normalMap.value = material.normalMap;
-      uniforms.normalScale.value.copy(material.normalScale);
-      if (material.side === BackSide) uniforms.normalScale.value.negate();
-    }
-
-    if (material.displacementMap) {
-      uniforms.displacementMap.value = material.displacementMap;
-      uniforms.displacementScale.value = material.displacementScale;
-      uniforms.displacementBias.value = material.displacementBias;
-    }
-  }
-
-  function refreshUniformsStandard(uniforms, material) {
-    uniforms.roughness.value = material.roughness;
-    uniforms.metalness.value = material.metalness;
-
-    if (material.roughnessMap) {
-      uniforms.roughnessMap.value = material.roughnessMap;
-    }
-
-    if (material.metalnessMap) {
-      uniforms.metalnessMap.value = material.metalnessMap;
-    }
-
-    if (material.emissiveMap) {
-      uniforms.emissiveMap.value = material.emissiveMap;
-    }
-
-    if (material.bumpMap) {
-      uniforms.bumpMap.value = material.bumpMap;
-      uniforms.bumpScale.value = material.bumpScale;
-      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
-    }
-
-    if (material.normalMap) {
-      uniforms.normalMap.value = material.normalMap;
-      uniforms.normalScale.value.copy(material.normalScale);
-      if (material.side === BackSide) uniforms.normalScale.value.negate();
-    }
-
-    if (material.displacementMap) {
-      uniforms.displacementMap.value = material.displacementMap;
-      uniforms.displacementScale.value = material.displacementScale;
-      uniforms.displacementBias.value = material.displacementBias;
-    }
-
-    const envMap = properties.get(material).envMap;
-
-    if (envMap) {
-      //uniforms.envMap.value = material.envMap; // part of uniforms common
-      uniforms.envMapIntensity.value = material.envMapIntensity;
-    }
-  }
-
-  function refreshUniformsPhysical(uniforms, material) {
-    refreshUniformsStandard(uniforms, material);
-    uniforms.reflectivity.value = material.reflectivity; // also part of uniforms common
-
-    uniforms.clearcoat.value = material.clearcoat;
-    uniforms.clearcoatRoughness.value = material.clearcoatRoughness;
-    if (material.sheen) uniforms.sheen.value.copy(material.sheen);
-
-    if (material.clearcoatMap) {
-      uniforms.clearcoatMap.value = material.clearcoatMap;
-    }
-
-    if (material.clearcoatRoughnessMap) {
-      uniforms.clearcoatRoughnessMap.value = material.clearcoatRoughnessMap;
-    }
-
-    if (material.clearcoatNormalMap) {
-      uniforms.clearcoatNormalScale.value.copy(material.clearcoatNormalScale);
-      uniforms.clearcoatNormalMap.value = material.clearcoatNormalMap;
-
-      if (material.side === BackSide) {
-        uniforms.clearcoatNormalScale.value.negate();
-      }
-    }
-
-    uniforms.transmission.value = material.transmission;
-
-    if (material.transmissionMap) {
-      uniforms.transmissionMap.value = material.transmissionMap;
-    }
-  }
-
-  function refreshUniformsMatcap(uniforms, material) {
-    if (material.matcap) {
-      uniforms.matcap.value = material.matcap;
-    }
-
-    if (material.bumpMap) {
-      uniforms.bumpMap.value = material.bumpMap;
-      uniforms.bumpScale.value = material.bumpScale;
-      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
-    }
-
-    if (material.normalMap) {
-      uniforms.normalMap.value = material.normalMap;
-      uniforms.normalScale.value.copy(material.normalScale);
-      if (material.side === BackSide) uniforms.normalScale.value.negate();
-    }
-
-    if (material.displacementMap) {
-      uniforms.displacementMap.value = material.displacementMap;
-      uniforms.displacementScale.value = material.displacementScale;
-      uniforms.displacementBias.value = material.displacementBias;
-    }
-  }
-
-  function refreshUniformsDepth(uniforms, material) {
-    if (material.displacementMap) {
-      uniforms.displacementMap.value = material.displacementMap;
-      uniforms.displacementScale.value = material.displacementScale;
-      uniforms.displacementBias.value = material.displacementBias;
-    }
-  }
-
-  function refreshUniformsDistance(uniforms, material) {
-    if (material.displacementMap) {
-      uniforms.displacementMap.value = material.displacementMap;
-      uniforms.displacementScale.value = material.displacementScale;
-      uniforms.displacementBias.value = material.displacementBias;
-    }
-
-    uniforms.referencePosition.value.copy(material.referencePosition);
-    uniforms.nearDistance.value = material.nearDistance;
-    uniforms.farDistance.value = material.farDistance;
-  }
-
-  function refreshUniformsNormal(uniforms, material) {
-    if (material.bumpMap) {
-      uniforms.bumpMap.value = material.bumpMap;
-      uniforms.bumpScale.value = material.bumpScale;
-      if (material.side === BackSide) uniforms.bumpScale.value *= -1;
-    }
-
-    if (material.normalMap) {
-      uniforms.normalMap.value = material.normalMap;
-      uniforms.normalScale.value.copy(material.normalScale);
-      if (material.side === BackSide) uniforms.normalScale.value.negate();
-    }
-
-    if (material.displacementMap) {
-      uniforms.displacementMap.value = material.displacementMap;
-      uniforms.displacementScale.value = material.displacementScale;
-      uniforms.displacementBias.value = material.displacementBias;
-    }
-  }
-
-  return {
-    refreshFogUniforms: refreshFogUniforms,
-    refreshMaterialUniforms: refreshMaterialUniforms
-  };
-}
-
-function createCanvasElement() {
-  const canvas = document.createElementNS('http://www.w3.org/1999/xhtml', 'canvas');
-  canvas.style.display = 'block';
-  return canvas;
-}
-
-function WebGLRenderer(parameters) {
-  parameters = parameters || {};
-
-  const _canvas = parameters.canvas !== undefined ? parameters.canvas : createCanvasElement(),
-        _context = parameters.context !== undefined ? parameters.context : null,
-        _alpha = parameters.alpha !== undefined ? parameters.alpha : false,
-        _depth = parameters.depth !== undefined ? parameters.depth : true,
-        _stencil = parameters.stencil !== undefined ? parameters.stencil : true,
-        _antialias = parameters.antialias !== undefined ? parameters.antialias : false,
-        _premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
-        _preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,
-        _powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default',
-        _failIfMajorPerformanceCaveat = parameters.failIfMajorPerformanceCaveat !== undefined ? parameters.failIfMajorPerformanceCaveat : false;
-
-  let currentRenderList = null;
-  let currentRenderState = null; // render() can be called from within a callback triggered by another render.
-  // We track this so that the nested render call gets its list and state isolated from the parent render call.
-
-  const renderListStack = [];
-  const renderStateStack = []; // public properties
-
-  this.domElement = _canvas; // Debug configuration container
-
-  this.debug = {
-    /**
-     * Enables error checking and reporting when shader programs are being compiled
-     * @type {boolean}
-     */
-    checkShaderErrors: true
-  }; // clearing
-
-  this.autoClear = true;
-  this.autoClearColor = true;
-  this.autoClearDepth = true;
-  this.autoClearStencil = true; // scene graph
-
-  this.sortObjects = true; // user-defined clipping
-
-  this.clippingPlanes = [];
-  this.localClippingEnabled = false; // physically based shading
-
-  this.gammaFactor = 2.0; // for backwards compatibility
-
-  this.outputEncoding = LinearEncoding; // physical lights
-
-  this.physicallyCorrectLights = false; // tone mapping
-
-  this.toneMapping = NoToneMapping;
-  this.toneMappingExposure = 1.0; // morphs
-
-  this.maxMorphTargets = 8;
-  this.maxMorphNormals = 4; // internal properties
-
-  const _this = this;
-
-  let _isContextLost = false; // internal state cache
-
-  let _framebuffer = null;
-  let _currentActiveCubeFace = 0;
-  let _currentActiveMipmapLevel = 0;
-  let _currentRenderTarget = null;
-  let _currentFramebuffer = null;
-
-  let _currentMaterialId = -1;
-
-  let _currentCamera = null;
-
-  const _currentViewport = new Vector4();
-
-  const _currentScissor = new Vector4();
-
-  let _currentScissorTest = null; //
-
-  let _width = _canvas.width;
-  let _height = _canvas.height;
-  let _pixelRatio = 1;
-  let _opaqueSort = null;
-  let _transparentSort = null;
-
-  const _viewport = new Vector4(0, 0, _width, _height);
-
-  const _scissor = new Vector4(0, 0, _width, _height);
-
-  let _scissorTest = false; // frustum
-
-  const _frustum = new Frustum(); // clipping
-
-
-  let _clippingEnabled = false;
-  let _localClippingEnabled = false; // camera matrices cache
-
-  const _projScreenMatrix = new Matrix4();
-
-  const _vector3 = new Vector3();
-
-  const _emptyScene = {
-    background: null,
-    fog: null,
-    environment: null,
-    overrideMaterial: null,
-    isScene: true
-  };
-
-  function getTargetPixelRatio() {
-    return _currentRenderTarget === null ? _pixelRatio : 1;
-  } // initialize
-
-
-  let _gl = _context;
-
-  function getContext(contextNames, contextAttributes) {
-    for (let i = 0; i < contextNames.length; i++) {
-      const contextName = contextNames[i];
-
-      const context = _canvas.getContext(contextName, contextAttributes);
-
-      if (context !== null) return context;
-    }
-
-    return null;
-  }
-
-  try {
-    const contextAttributes = {
-      alpha: _alpha,
-      depth: _depth,
-      stencil: _stencil,
-      antialias: _antialias,
-      premultipliedAlpha: _premultipliedAlpha,
-      preserveDrawingBuffer: _preserveDrawingBuffer,
-      powerPreference: _powerPreference,
-      failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat
-    }; // event listeners must be registered before WebGL context is created, see #12753
-
-    _canvas.addEventListener('webglcontextlost', onContextLost, false);
-
-    _canvas.addEventListener('webglcontextrestored', onContextRestore, false);
-
-    if (_gl === null) {
-      const contextNames = ['webgl2', 'webgl', 'experimental-webgl'];
-
-      if (_this.isWebGL1Renderer === true) {
-        contextNames.shift();
-      }
-
-      _gl = getContext(contextNames, contextAttributes);
-
-      if (_gl === null) {
-        if (getContext(contextNames)) {
-          throw new Error('Error creating WebGL context with your selected attributes.');
-        } else {
-          throw new Error('Error creating WebGL context.');
-        }
-      }
-    } // Some experimental-webgl implementations do not have getShaderPrecisionFormat
-
-
-    if (_gl.getShaderPrecisionFormat === undefined) {
-      _gl.getShaderPrecisionFormat = function () {
-        return {
-          'rangeMin': 1,
-          'rangeMax': 1,
-          'precision': 1
-        };
-      };
-    }
-  } catch (error) {
-    console.error('THREE.WebGLRenderer: ' + error.message);
-    throw error;
-  }
-
-  let extensions, capabilities, state, info;
-  let properties, textures, cubemaps, attributes, geometries, objects;
-  let programCache, materials, renderLists, renderStates, clipping;
-  let background, morphtargets, bufferRenderer, indexedBufferRenderer;
-  let utils, bindingStates;
-
-  function initGLContext() {
-    extensions = new WebGLExtensions(_gl);
-    capabilities = new WebGLCapabilities(_gl, extensions, parameters);
-    extensions.init(capabilities);
-    utils = new WebGLUtils(_gl, extensions, capabilities);
-    state = new WebGLState(_gl, extensions, capabilities);
-    state.scissor(_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor());
-    state.viewport(_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor());
-    info = new WebGLInfo(_gl);
-    properties = new WebGLProperties();
-    textures = new WebGLTextures(_gl, extensions, state, properties, capabilities, utils, info);
-    cubemaps = new WebGLCubeMaps(_this);
-    attributes = new WebGLAttributes(_gl, capabilities);
-    bindingStates = new WebGLBindingStates(_gl, extensions, attributes, capabilities);
-    geometries = new WebGLGeometries(_gl, attributes, info, bindingStates);
-    objects = new WebGLObjects(_gl, geometries, attributes, info);
-    morphtargets = new WebGLMorphtargets(_gl);
-    clipping = new WebGLClipping(properties);
-    programCache = new WebGLPrograms(_this, cubemaps, extensions, capabilities, bindingStates, clipping);
-    materials = new WebGLMaterials(properties);
-    renderLists = new WebGLRenderLists(properties);
-    renderStates = new WebGLRenderStates(extensions, capabilities);
-    background = new WebGLBackground(_this, cubemaps, state, objects, _premultipliedAlpha);
-    bufferRenderer = new WebGLBufferRenderer(_gl, extensions, info, capabilities);
-    indexedBufferRenderer = new WebGLIndexedBufferRenderer(_gl, extensions, info, capabilities);
-    info.programs = programCache.programs;
-    _this.capabilities = capabilities;
-    _this.extensions = extensions;
-    _this.properties = properties;
-    _this.renderLists = renderLists;
-    _this.state = state;
-    _this.info = info;
-  }
-
-  initGLContext(); // xr
-
-  const xr = new WebXRManager(_this, _gl);
-  this.xr = xr; // shadow map
-
-  const shadowMap = new WebGLShadowMap(_this, objects, capabilities.maxTextureSize);
-  this.shadowMap = shadowMap; // API
-
-  this.getContext = function () {
-    return _gl;
-  };
-
-  this.getContextAttributes = function () {
-    return _gl.getContextAttributes();
-  };
-
-  this.forceContextLoss = function () {
-    const extension = extensions.get('WEBGL_lose_context');
-    if (extension) extension.loseContext();
-  };
-
-  this.forceContextRestore = function () {
-    const extension = extensions.get('WEBGL_lose_context');
-    if (extension) extension.restoreContext();
-  };
-
-  this.getPixelRatio = function () {
-    return _pixelRatio;
-  };
-
-  this.setPixelRatio = function (value) {
-    if (value === undefined) return;
-    _pixelRatio = value;
-    this.setSize(_width, _height, false);
-  };
-
-  this.getSize = function (target) {
-    if (target === undefined) {
-      console.warn('WebGLRenderer: .getsize() now requires a Vector2 as an argument');
-      target = new Vector2();
-    }
-
-    return target.set(_width, _height);
-  };
-
-  this.setSize = function (width, height, updateStyle) {
-    if (xr.isPresenting) {
-      console.warn('THREE.WebGLRenderer: Can\'t change size while VR device is presenting.');
-      return;
-    }
-
-    _width = width;
-    _height = height;
-    _canvas.width = Math.floor(width * _pixelRatio);
-    _canvas.height = Math.floor(height * _pixelRatio);
-
-    if (updateStyle !== false) {
-      _canvas.style.width = width + 'px';
-      _canvas.style.height = height + 'px';
-    }
-
-    this.setViewport(0, 0, width, height);
-  };
-
-  this.getDrawingBufferSize = function (target) {
-    if (target === undefined) {
-      console.warn('WebGLRenderer: .getdrawingBufferSize() now requires a Vector2 as an argument');
-      target = new Vector2();
-    }
-
-    return target.set(_width * _pixelRatio, _height * _pixelRatio).floor();
-  };
-
-  this.setDrawingBufferSize = function (width, height, pixelRatio) {
-    _width = width;
-    _height = height;
-    _pixelRatio = pixelRatio;
-    _canvas.width = Math.floor(width * pixelRatio);
-    _canvas.height = Math.floor(height * pixelRatio);
-    this.setViewport(0, 0, width, height);
-  };
-
-  this.getCurrentViewport = function (target) {
-    if (target === undefined) {
-      console.warn('WebGLRenderer: .getCurrentViewport() now requires a Vector4 as an argument');
-      target = new Vector4();
-    }
-
-    return target.copy(_currentViewport);
-  };
-
-  this.getViewport = function (target) {
-    return target.copy(_viewport);
-  };
-
-  this.setViewport = function (x, y, width, height) {
-    if (x.isVector4) {
-      _viewport.set(x.x, x.y, x.z, x.w);
-    } else {
-      _viewport.set(x, y, width, height);
-    }
-
-    state.viewport(_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor());
-  };
-
-  this.getScissor = function (target) {
-    return target.copy(_scissor);
-  };
-
-  this.setScissor = function (x, y, width, height) {
-    if (x.isVector4) {
-      _scissor.set(x.x, x.y, x.z, x.w);
-    } else {
-      _scissor.set(x, y, width, height);
-    }
-
-    state.scissor(_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor());
-  };
-
-  this.getScissorTest = function () {
-    return _scissorTest;
-  };
-
-  this.setScissorTest = function (boolean) {
-    state.setScissorTest(_scissorTest = boolean);
-  };
-
-  this.setOpaqueSort = function (method) {
-    _opaqueSort = method;
-  };
-
-  this.setTransparentSort = function (method) {
-    _transparentSort = method;
-  }; // Clearing
-
-
-  this.getClearColor = function (target) {
-    if (target === undefined) {
-      console.warn('WebGLRenderer: .getClearColor() now requires a Color as an argument');
-      target = new Color();
-    }
-
-    return target.copy(background.getClearColor());
-  };
-
-  this.setClearColor = function () {
-    background.setClearColor.apply(background, arguments);
-  };
-
-  this.getClearAlpha = function () {
-    return background.getClearAlpha();
-  };
-
-  this.setClearAlpha = function () {
-    background.setClearAlpha.apply(background, arguments);
-  };
-
-  this.clear = function (color, depth, stencil) {
-    let bits = 0;
-    if (color === undefined || color) bits |= 16384;
-    if (depth === undefined || depth) bits |= 256;
-    if (stencil === undefined || stencil) bits |= 1024;
-
-    _gl.clear(bits);
-  };
-
-  this.clearColor = function () {
-    this.clear(true, false, false);
-  };
-
-  this.clearDepth = function () {
-    this.clear(false, true, false);
-  };
-
-  this.clearStencil = function () {
-    this.clear(false, false, true);
-  }; //
-
-
-  this.dispose = function () {
-    _canvas.removeEventListener('webglcontextlost', onContextLost, false);
-
-    _canvas.removeEventListener('webglcontextrestored', onContextRestore, false);
-
-    renderLists.dispose();
-    renderStates.dispose();
-    properties.dispose();
-    cubemaps.dispose();
-    objects.dispose();
-    bindingStates.dispose();
-    xr.dispose();
-    animation.stop();
-  }; // Events
-
-
-  function onContextLost(event) {
-    event.preventDefault();
-    console.log('THREE.WebGLRenderer: Context Lost.');
-    _isContextLost = true;
-  }
-
-  function onContextRestore()
-  /* event */
-  {
-    console.log('THREE.WebGLRenderer: Context Restored.');
-    _isContextLost = false;
-    initGLContext();
-  }
-
-  function onMaterialDispose(event) {
-    const material = event.target;
-    material.removeEventListener('dispose', onMaterialDispose);
-    deallocateMaterial(material);
-  } // Buffer deallocation
-
-
-  function deallocateMaterial(material) {
-    releaseMaterialProgramReference(material);
-    properties.remove(material);
-  }
-
-  function releaseMaterialProgramReference(material) {
-    const programInfo = properties.get(material).program;
-
-    if (programInfo !== undefined) {
-      programCache.releaseProgram(programInfo);
-    }
-  } // Buffer rendering
-
-
-  function renderObjectImmediate(object, program) {
-    object.render(function (object) {
-      _this.renderBufferImmediate(object, program);
-    });
-  }
-
-  this.renderBufferImmediate = function (object, program) {
-    bindingStates.initAttributes();
-    const buffers = properties.get(object);
-    if (object.hasPositions && !buffers.position) buffers.position = _gl.createBuffer();
-    if (object.hasNormals && !buffers.normal) buffers.normal = _gl.createBuffer();
-    if (object.hasUvs && !buffers.uv) buffers.uv = _gl.createBuffer();
-    if (object.hasColors && !buffers.color) buffers.color = _gl.createBuffer();
-    const programAttributes = program.getAttributes();
-
-    if (object.hasPositions) {
-      _gl.bindBuffer(34962, buffers.position);
-
-      _gl.bufferData(34962, object.positionArray, 35048);
-
-      bindingStates.enableAttribute(programAttributes.position);
-
-      _gl.vertexAttribPointer(programAttributes.position, 3, 5126, false, 0, 0);
-    }
-
-    if (object.hasNormals) {
-      _gl.bindBuffer(34962, buffers.normal);
-
-      _gl.bufferData(34962, object.normalArray, 35048);
-
-      bindingStates.enableAttribute(programAttributes.normal);
-
-      _gl.vertexAttribPointer(programAttributes.normal, 3, 5126, false, 0, 0);
-    }
-
-    if (object.hasUvs) {
-      _gl.bindBuffer(34962, buffers.uv);
-
-      _gl.bufferData(34962, object.uvArray, 35048);
-
-      bindingStates.enableAttribute(programAttributes.uv);
-
-      _gl.vertexAttribPointer(programAttributes.uv, 2, 5126, false, 0, 0);
-    }
-
-    if (object.hasColors) {
-      _gl.bindBuffer(34962, buffers.color);
-
-      _gl.bufferData(34962, object.colorArray, 35048);
-
-      bindingStates.enableAttribute(programAttributes.color);
-
-      _gl.vertexAttribPointer(programAttributes.color, 3, 5126, false, 0, 0);
-    }
-
-    bindingStates.disableUnusedAttributes();
-
-    _gl.drawArrays(4, 0, object.count);
-
-    object.count = 0;
-  };
-
-  this.renderBufferDirect = function (camera, scene, geometry, material, object, group) {
-    if (scene === null) scene = _emptyScene; // renderBufferDirect second parameter used to be fog (could be null)
-
-    const frontFaceCW = object.isMesh && object.matrixWorld.determinant() < 0;
-    const program = setProgram(camera, scene, material, object);
-    state.setMaterial(material, frontFaceCW); //
-
-    let index = geometry.index;
-    const position = geometry.attributes.position; //
-
-    if (index === null) {
-      if (position === undefined || position.count === 0) return;
-    } else if (index.count === 0) {
-      return;
-    } //
-
-
-    let rangeFactor = 1;
-
-    if (material.wireframe === true) {
-      index = geometries.getWireframeAttribute(geometry);
-      rangeFactor = 2;
-    }
-
-    if (material.morphTargets || material.morphNormals) {
-      morphtargets.update(object, geometry, material, program);
-    }
-
-    bindingStates.setup(object, material, program, geometry, index);
-    let attribute;
-    let renderer = bufferRenderer;
-
-    if (index !== null) {
-      attribute = attributes.get(index);
-      renderer = indexedBufferRenderer;
-      renderer.setIndex(attribute);
-    } //
-
-
-    const dataCount = index !== null ? index.count : position.count;
-    const rangeStart = geometry.drawRange.start * rangeFactor;
-    const rangeCount = geometry.drawRange.count * rangeFactor;
-    const groupStart = group !== null ? group.start * rangeFactor : 0;
-    const groupCount = group !== null ? group.count * rangeFactor : Infinity;
-    const drawStart = Math.max(rangeStart, groupStart);
-    const drawEnd = Math.min(dataCount, rangeStart + rangeCount, groupStart + groupCount) - 1;
-    const drawCount = Math.max(0, drawEnd - drawStart + 1);
-    if (drawCount === 0) return; //
-
-    if (object.isMesh) {
-      if (material.wireframe === true) {
-        state.setLineWidth(material.wireframeLinewidth * getTargetPixelRatio());
-        renderer.setMode(1);
-      } else {
-        renderer.setMode(4);
-      }
-    } else if (object.isLine) {
-      let lineWidth = material.linewidth;
-      if (lineWidth === undefined) lineWidth = 1; // Not using Line*Material
-
-      state.setLineWidth(lineWidth * getTargetPixelRatio());
-
-      if (object.isLineSegments) {
-        renderer.setMode(1);
-      } else if (object.isLineLoop) {
-        renderer.setMode(2);
-      } else {
-        renderer.setMode(3);
-      }
-    } else if (object.isPoints) {
-      renderer.setMode(0);
-    } else if (object.isSprite) {
-      renderer.setMode(4);
-    }
-
-    if (object.isInstancedMesh) {
-      renderer.renderInstances(drawStart, drawCount, object.count);
-    } else if (geometry.isInstancedBufferGeometry) {
-      const instanceCount = Math.min(geometry.instanceCount, geometry._maxInstanceCount);
-      renderer.renderInstances(drawStart, drawCount, instanceCount);
-    } else {
-      renderer.render(drawStart, drawCount);
-    }
-  }; // Compile
-
-
-  this.compile = function (scene, camera) {
-    currentRenderState = renderStates.get(scene);
-    currentRenderState.init();
-    scene.traverseVisible(function (object) {
-      if (object.isLight && object.layers.test(camera.layers)) {
-        currentRenderState.pushLight(object);
-
-        if (object.castShadow) {
-          currentRenderState.pushShadow(object);
-        }
-      }
-    });
-    currentRenderState.setupLights();
-    const compiled = new WeakMap();
-    scene.traverse(function (object) {
-      const material = object.material;
-
-      if (material) {
-        if (Array.isArray(material)) {
-          for (let i = 0; i < material.length; i++) {
-            const material2 = material[i];
-
-            if (compiled.has(material2) === false) {
-              initMaterial(material2, scene, object);
-              compiled.set(material2);
-            }
-          }
-        } else if (compiled.has(material) === false) {
-          initMaterial(material, scene, object);
-          compiled.set(material);
-        }
-      }
-    });
-  }; // Animation Loop
-
-
-  let onAnimationFrameCallback = null;
-
-  function onAnimationFrame(time) {
-    if (xr.isPresenting) return;
-    if (onAnimationFrameCallback) onAnimationFrameCallback(time);
-  }
-
-  const animation = new WebGLAnimation();
-  animation.setAnimationLoop(onAnimationFrame);
-  if (typeof window !== 'undefined') animation.setContext(window);
-
-  this.setAnimationLoop = function (callback) {
-    onAnimationFrameCallback = callback;
-    xr.setAnimationLoop(callback);
-    callback === null ? animation.stop() : animation.start();
-  }; // Rendering
-
-
-  this.render = function (scene, camera) {
-    let renderTarget, forceClear;
-
-    if (arguments[2] !== undefined) {
-      console.warn('THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead.');
-      renderTarget = arguments[2];
-    }
-
-    if (arguments[3] !== undefined) {
-      console.warn('THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead.');
-      forceClear = arguments[3];
-    }
-
-    if (camera !== undefined && camera.isCamera !== true) {
-      console.error('THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.');
-      return;
-    }
-
-    if (_isContextLost === true) return; // reset caching for this frame
-
-    bindingStates.resetDefaultState();
-    _currentMaterialId = -1;
-    _currentCamera = null; // update scene graph
-
-    if (scene.autoUpdate === true) scene.updateMatrixWorld(); // update camera matrices and frustum
-
-    if (camera.parent === null) camera.updateMatrixWorld();
-
-    if (xr.enabled === true && xr.isPresenting === true) {
-      camera = xr.getCamera(camera);
-    } //
-
-
-    if (scene.isScene === true) scene.onBeforeRender(_this, scene, camera, renderTarget || _currentRenderTarget);
-    currentRenderState = renderStates.get(scene, renderStateStack.length);
-    currentRenderState.init();
-    renderStateStack.push(currentRenderState);
-
-    _projScreenMatrix.multiplyMatrices(camera.projectionMatrix, camera.matrixWorldInverse);
-
-    _frustum.setFromProjectionMatrix(_projScreenMatrix);
-
-    _localClippingEnabled = this.localClippingEnabled;
-    _clippingEnabled = clipping.init(this.clippingPlanes, _localClippingEnabled, camera);
-    currentRenderList = renderLists.get(scene, renderListStack.length);
-    currentRenderList.init();
-    renderListStack.push(currentRenderList);
-    projectObject(scene, camera, 0, _this.sortObjects);
-    currentRenderList.finish();
-
-    if (_this.sortObjects === true) {
-      currentRenderList.sort(_opaqueSort, _transparentSort);
-    } //
-
-
-    if (_clippingEnabled === true) clipping.beginShadows();
-    const shadowsArray = currentRenderState.state.shadowsArray;
-    shadowMap.render(shadowsArray, scene, camera);
-    currentRenderState.setupLights();
-    currentRenderState.setupLightsView(camera);
-    if (_clippingEnabled === true) clipping.endShadows(); //
-
-    if (this.info.autoReset === true) this.info.reset();
-
-    if (renderTarget !== undefined) {
-      this.setRenderTarget(renderTarget);
-    } //
-
-
-    background.render(currentRenderList, scene, camera, forceClear); // render scene
-
-    const opaqueObjects = currentRenderList.opaque;
-    const transparentObjects = currentRenderList.transparent;
-    if (opaqueObjects.length > 0) renderObjects(opaqueObjects, scene, camera);
-    if (transparentObjects.length > 0) renderObjects(transparentObjects, scene, camera); //
-
-    if (scene.isScene === true) scene.onAfterRender(_this, scene, camera); //
-
-    if (_currentRenderTarget !== null) {
-      // Generate mipmap if we're using any kind of mipmap filtering
-      textures.updateRenderTargetMipmap(_currentRenderTarget); // resolve multisample renderbuffers to a single-sample texture if necessary
-
-      textures.updateMultisampleRenderTarget(_currentRenderTarget);
-    } // Ensure depth buffer writing is enabled so it can be cleared on next render
-
-
-    state.buffers.depth.setTest(true);
-    state.buffers.depth.setMask(true);
-    state.buffers.color.setMask(true);
-    state.setPolygonOffset(false); // _gl.finish();
-
-    renderStateStack.pop();
-
-    if (renderStateStack.length > 0) {
-      currentRenderState = renderStateStack[renderStateStack.length - 1];
-    } else {
-      currentRenderState = null;
-    }
-
-    renderListStack.pop();
-
-    if (renderListStack.length > 0) {
-      currentRenderList = renderListStack[renderListStack.length - 1];
-    } else {
-      currentRenderList = null;
-    }
-  };
-
-  function projectObject(object, camera, groupOrder, sortObjects) {
-    if (object.visible === false) return;
-    const visible = object.layers.test(camera.layers);
-
-    if (visible) {
-      if (object.isGroup) {
-        groupOrder = object.renderOrder;
-      } else if (object.isLOD) {
-        if (object.autoUpdate === true) object.update(camera);
-      } else if (object.isLight) {
-        currentRenderState.pushLight(object);
-
-        if (object.castShadow) {
-          currentRenderState.pushShadow(object);
-        }
-      } else if (object.isSprite) {
-        if (!object.frustumCulled || _frustum.intersectsSprite(object)) {
-          if (sortObjects) {
-            _vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);
-          }
-
-          const geometry = objects.update(object);
-          const material = object.material;
-
-          if (material.visible) {
-            currentRenderList.push(object, geometry, material, groupOrder, _vector3.z, null);
-          }
-        }
-      } else if (object.isImmediateRenderObject) {
-        if (sortObjects) {
-          _vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);
-        }
-
-        currentRenderList.push(object, null, object.material, groupOrder, _vector3.z, null);
-      } else if (object.isMesh || object.isLine || object.isPoints) {
-        if (object.isSkinnedMesh) {
-          // update skeleton only once in a frame
-          if (object.skeleton.frame !== info.render.frame) {
-            object.skeleton.update();
-            object.skeleton.frame = info.render.frame;
-          }
-        }
-
-        if (!object.frustumCulled || _frustum.intersectsObject(object)) {
-          if (sortObjects) {
-            _vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);
-          }
-
-          const geometry = objects.update(object);
-          const material = object.material;
-
-          if (Array.isArray(material)) {
-            const groups = geometry.groups;
-
-            for (let i = 0, l = groups.length; i < l; i++) {
-              const group = groups[i];
-              const groupMaterial = material[group.materialIndex];
-
-              if (groupMaterial && groupMaterial.visible) {
-                currentRenderList.push(object, geometry, groupMaterial, groupOrder, _vector3.z, group);
-              }
-            }
-          } else if (material.visible) {
-            currentRenderList.push(object, geometry, material, groupOrder, _vector3.z, null);
-          }
-        }
-      }
-    }
-
-    const children = object.children;
-
-    for (let i = 0, l = children.length; i < l; i++) {
-      projectObject(children[i], camera, groupOrder, sortObjects);
-    }
-  }
-
-  function renderObjects(renderList, scene, camera) {
-    const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null;
-
-    for (let i = 0, l = renderList.length; i < l; i++) {
-      const renderItem = renderList[i];
-      const object = renderItem.object;
-      const geometry = renderItem.geometry;
-      const material = overrideMaterial === null ? renderItem.material : overrideMaterial;
-      const group = renderItem.group;
-
-      if (camera.isArrayCamera) {
-        const cameras = camera.cameras;
-
-        for (let j = 0, jl = cameras.length; j < jl; j++) {
-          const camera2 = cameras[j];
-
-          if (object.layers.test(camera2.layers)) {
-            state.viewport(_currentViewport.copy(camera2.viewport));
-            currentRenderState.setupLightsView(camera2);
-            renderObject(object, scene, camera2, geometry, material, group);
-          }
-        }
-      } else {
-        renderObject(object, scene, camera, geometry, material, group);
-      }
-    }
-  }
-
-  function renderObject(object, scene, camera, geometry, material, group) {
-    object.onBeforeRender(_this, scene, camera, geometry, material, group);
-    object.modelViewMatrix.multiplyMatrices(camera.matrixWorldInverse, object.matrixWorld);
-    object.normalMatrix.getNormalMatrix(object.modelViewMatrix);
-
-    if (object.isImmediateRenderObject) {
-      const program = setProgram(camera, scene, material, object);
-      state.setMaterial(material);
-      bindingStates.reset();
-      renderObjectImmediate(object, program);
-    } else {
-      _this.renderBufferDirect(camera, scene, geometry, material, object, group);
-    }
-
-    object.onAfterRender(_this, scene, camera, geometry, material, group);
-  }
-
-  function initMaterial(material, scene, object) {
-    if (scene.isScene !== true) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...
-
-    const materialProperties = properties.get(material);
-    const lights = currentRenderState.state.lights;
-    const shadowsArray = currentRenderState.state.shadowsArray;
-    const lightsStateVersion = lights.state.version;
-    const parameters = programCache.getParameters(material, lights.state, shadowsArray, scene, object);
-    const programCacheKey = programCache.getProgramCacheKey(parameters);
-    let program = materialProperties.program;
-    let programChange = true; // always update environment and fog - changing these trigger an initMaterial call, but it's possible that the program doesn't change
-
-    materialProperties.environment = material.isMeshStandardMaterial ? scene.environment : null;
-    materialProperties.fog = scene.fog;
-    materialProperties.envMap = cubemaps.get(material.envMap || materialProperties.environment);
-
-    if (program === undefined) {
-      // new material
-      material.addEventListener('dispose', onMaterialDispose);
-    } else if (program.cacheKey !== programCacheKey) {
-      // changed glsl or parameters
-      releaseMaterialProgramReference(material);
-    } else if (materialProperties.lightsStateVersion !== lightsStateVersion) {
-      programChange = false;
-    } else if (parameters.shaderID !== undefined) {
-      // same glsl and uniform list
-      return;
-    } else {
-      // only rebuild uniform list
-      programChange = false;
-    }
-
-    if (programChange) {
-      parameters.uniforms = programCache.getUniforms(material);
-      material.onBeforeCompile(parameters, _this);
-      program = programCache.acquireProgram(parameters, programCacheKey);
-      materialProperties.program = program;
-      materialProperties.uniforms = parameters.uniforms;
-      materialProperties.outputEncoding = parameters.outputEncoding;
-    }
-
-    const uniforms = materialProperties.uniforms;
-
-    if (!material.isShaderMaterial && !material.isRawShaderMaterial || material.clipping === true) {
-      materialProperties.numClippingPlanes = clipping.numPlanes;
-      materialProperties.numIntersection = clipping.numIntersection;
-      uniforms.clippingPlanes = clipping.uniform;
-    } // store the light setup it was created for
-
-
-    materialProperties.needsLights = materialNeedsLights(material);
-    materialProperties.lightsStateVersion = lightsStateVersion;
-
-    if (materialProperties.needsLights) {
-      // wire up the material to this renderer's lighting state
-      uniforms.ambientLightColor.value = lights.state.ambient;
-      uniforms.lightProbe.value = lights.state.probe;
-      uniforms.directionalLights.value = lights.state.directional;
-      uniforms.directionalLightShadows.value = lights.state.directionalShadow;
-      uniforms.spotLights.value = lights.state.spot;
-      uniforms.spotLightShadows.value = lights.state.spotShadow;
-      uniforms.rectAreaLights.value = lights.state.rectArea;
-      uniforms.ltc_1.value = lights.state.rectAreaLTC1;
-      uniforms.ltc_2.value = lights.state.rectAreaLTC2;
-      uniforms.pointLights.value = lights.state.point;
-      uniforms.pointLightShadows.value = lights.state.pointShadow;
-      uniforms.hemisphereLights.value = lights.state.hemi;
-      uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
-      uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
-      uniforms.spotShadowMap.value = lights.state.spotShadowMap;
-      uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;
-      uniforms.pointShadowMap.value = lights.state.pointShadowMap;
-      uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix; // TODO (abelnation): add area lights shadow info to uniforms
-    }
-
-    const progUniforms = materialProperties.program.getUniforms();
-    const uniformsList = WebGLUniforms.seqWithValue(progUniforms.seq, uniforms);
-    materialProperties.uniformsList = uniformsList;
-  }
-
-  function setProgram(camera, scene, material, object) {
-    if (scene.isScene !== true) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...
-
-    textures.resetTextureUnits();
-    const fog = scene.fog;
-    const environment = material.isMeshStandardMaterial ? scene.environment : null;
-    const encoding = _currentRenderTarget === null ? _this.outputEncoding : _currentRenderTarget.texture.encoding;
-    const envMap = cubemaps.get(material.envMap || environment);
-    const materialProperties = properties.get(material);
-    const lights = currentRenderState.state.lights;
-
-    if (_clippingEnabled === true) {
-      if (_localClippingEnabled === true || camera !== _currentCamera) {
-        const useCache = camera === _currentCamera && material.id === _currentMaterialId; // we might want to call this function with some ClippingGroup
-        // object instead of the material, once it becomes feasible
-        // (#8465, #8379)
-
-        clipping.setState(material, camera, useCache);
-      }
-    }
-
-    if (material.version === materialProperties.__version) {
-      if (material.fog && materialProperties.fog !== fog) {
-        initMaterial(material, scene, object);
-      } else if (materialProperties.environment !== environment) {
-        initMaterial(material, scene, object);
-      } else if (materialProperties.needsLights && materialProperties.lightsStateVersion !== lights.state.version) {
-        initMaterial(material, scene, object);
-      } else if (materialProperties.numClippingPlanes !== undefined && (materialProperties.numClippingPlanes !== clipping.numPlanes || materialProperties.numIntersection !== clipping.numIntersection)) {
-        initMaterial(material, scene, object);
-      } else if (materialProperties.outputEncoding !== encoding) {
-        initMaterial(material, scene, object);
-      } else if (materialProperties.envMap !== envMap) {
-        initMaterial(material, scene, object);
-      }
-    } else {
-      initMaterial(material, scene, object);
-      materialProperties.__version = material.version;
-    }
-
-    let refreshProgram = false;
-    let refreshMaterial = false;
-    let refreshLights = false;
-    const program = materialProperties.program,
-          p_uniforms = program.getUniforms(),
-          m_uniforms = materialProperties.uniforms;
-
-    if (state.useProgram(program.program)) {
-      refreshProgram = true;
-      refreshMaterial = true;
-      refreshLights = true;
-    }
-
-    if (material.id !== _currentMaterialId) {
-      _currentMaterialId = material.id;
-      refreshMaterial = true;
-    }
-
-    if (refreshProgram || _currentCamera !== camera) {
-      p_uniforms.setValue(_gl, 'projectionMatrix', camera.projectionMatrix);
-
-      if (capabilities.logarithmicDepthBuffer) {
-        p_uniforms.setValue(_gl, 'logDepthBufFC', 2.0 / (Math.log(camera.far + 1.0) / Math.LN2));
-      }
-
-      if (_currentCamera !== camera) {
-        _currentCamera = camera; // lighting uniforms depend on the camera so enforce an update
-        // now, in case this material supports lights - or later, when
-        // the next material that does gets activated:
-
-        refreshMaterial = true; // set to true on material change
-
-        refreshLights = true; // remains set until update done
-      } // load material specific uniforms
-      // (shader material also gets them for the sake of genericity)
-
-
-      if (material.isShaderMaterial || material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshStandardMaterial || material.envMap) {
-        const uCamPos = p_uniforms.map.cameraPosition;
-
-        if (uCamPos !== undefined) {
-          uCamPos.setValue(_gl, _vector3.setFromMatrixPosition(camera.matrixWorld));
-        }
-      }
-
-      if (material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshLambertMaterial || material.isMeshBasicMaterial || material.isMeshStandardMaterial || material.isShaderMaterial) {
-        p_uniforms.setValue(_gl, 'isOrthographic', camera.isOrthographicCamera === true);
-      }
-
-      if (material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshLambertMaterial || material.isMeshBasicMaterial || material.isMeshStandardMaterial || material.isShaderMaterial || material.isShadowMaterial || material.skinning) {
-        p_uniforms.setValue(_gl, 'viewMatrix', camera.matrixWorldInverse);
-      }
-    } // skinning uniforms must be set even if material didn't change
-    // auto-setting of texture unit for bone texture must go before other textures
-    // otherwise textures used for skinning can take over texture units reserved for other material textures
-
-
-    if (material.skinning) {
-      p_uniforms.setOptional(_gl, object, 'bindMatrix');
-      p_uniforms.setOptional(_gl, object, 'bindMatrixInverse');
-      const skeleton = object.skeleton;
-
-      if (skeleton) {
-        const bones = skeleton.bones;
-
-        if (capabilities.floatVertexTextures) {
-          if (skeleton.boneTexture === null) {
-            // layout (1 matrix = 4 pixels)
-            //      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
-            //  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
-            //       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
-            //       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
-            //       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)
-            let size = Math.sqrt(bones.length * 4); // 4 pixels needed for 1 matrix
-
-            size = MathUtils.ceilPowerOfTwo(size);
-            size = Math.max(size, 4);
-            const boneMatrices = new Float32Array(size * size * 4); // 4 floats per RGBA pixel
-
-            boneMatrices.set(skeleton.boneMatrices); // copy current values
-
-            const boneTexture = new DataTexture(boneMatrices, size, size, RGBAFormat, FloatType);
-            skeleton.boneMatrices = boneMatrices;
-            skeleton.boneTexture = boneTexture;
-            skeleton.boneTextureSize = size;
-          }
-
-          p_uniforms.setValue(_gl, 'boneTexture', skeleton.boneTexture, textures);
-          p_uniforms.setValue(_gl, 'boneTextureSize', skeleton.boneTextureSize);
-        } else {
-          p_uniforms.setOptional(_gl, skeleton, 'boneMatrices');
-        }
-      }
-    }
-
-    if (refreshMaterial || materialProperties.receiveShadow !== object.receiveShadow) {
-      materialProperties.receiveShadow = object.receiveShadow;
-      p_uniforms.setValue(_gl, 'receiveShadow', object.receiveShadow);
-    }
-
-    if (refreshMaterial) {
-      p_uniforms.setValue(_gl, 'toneMappingExposure', _this.toneMappingExposure);
-
-      if (materialProperties.needsLights) {
-        // the current material requires lighting info
-        // note: all lighting uniforms are always set correctly
-        // they simply reference the renderer's state for their
-        // values
-        //
-        // use the current material's .needsUpdate flags to set
-        // the GL state when required
-        markUniformsLightsNeedsUpdate(m_uniforms, refreshLights);
-      } // refresh uniforms common to several materials
-
-
-      if (fog && material.fog) {
-        materials.refreshFogUniforms(m_uniforms, fog);
-      }
-
-      materials.refreshMaterialUniforms(m_uniforms, material, _pixelRatio, _height);
-      WebGLUniforms.upload(_gl, materialProperties.uniformsList, m_uniforms, textures);
-    }
-
-    if (material.isShaderMaterial && material.uniformsNeedUpdate === true) {
-      WebGLUniforms.upload(_gl, materialProperties.uniformsList, m_uniforms, textures);
-      material.uniformsNeedUpdate = false;
-    }
-
-    if (material.isSpriteMaterial) {
-      p_uniforms.setValue(_gl, 'center', object.center);
-    } // common matrices
-
-
-    p_uniforms.setValue(_gl, 'modelViewMatrix', object.modelViewMatrix);
-    p_uniforms.setValue(_gl, 'normalMatrix', object.normalMatrix);
-    p_uniforms.setValue(_gl, 'modelMatrix', object.matrixWorld);
-    return program;
-  } // If uniforms are marked as clean, they don't need to be loaded to the GPU.
-
-
-  function markUniformsLightsNeedsUpdate(uniforms, value) {
-    uniforms.ambientLightColor.needsUpdate = value;
-    uniforms.lightProbe.needsUpdate = value;
-    uniforms.directionalLights.needsUpdate = value;
-    uniforms.directionalLightShadows.needsUpdate = value;
-    uniforms.pointLights.needsUpdate = value;
-    uniforms.pointLightShadows.needsUpdate = value;
-    uniforms.spotLights.needsUpdate = value;
-    uniforms.spotLightShadows.needsUpdate = value;
-    uniforms.rectAreaLights.needsUpdate = value;
-    uniforms.hemisphereLights.needsUpdate = value;
-  }
-
-  function materialNeedsLights(material) {
-    return material.isMeshLambertMaterial || material.isMeshToonMaterial || material.isMeshPhongMaterial || material.isMeshStandardMaterial || material.isShadowMaterial || material.isShaderMaterial && material.lights === true;
-  } //
-
-
-  this.setFramebuffer = function (value) {
-    if (_framebuffer !== value && _currentRenderTarget === null) _gl.bindFramebuffer(36160, value);
-    _framebuffer = value;
-  };
-
-  this.getActiveCubeFace = function () {
-    return _currentActiveCubeFace;
-  };
-
-  this.getActiveMipmapLevel = function () {
-    return _currentActiveMipmapLevel;
-  };
-
-  this.getRenderTarget = function () {
-    return _currentRenderTarget;
-  };
-
-  this.setRenderTarget = function (renderTarget, activeCubeFace = 0, activeMipmapLevel = 0) {
-    _currentRenderTarget = renderTarget;
-    _currentActiveCubeFace = activeCubeFace;
-    _currentActiveMipmapLevel = activeMipmapLevel;
-
-    if (renderTarget && properties.get(renderTarget).__webglFramebuffer === undefined) {
-      textures.setupRenderTarget(renderTarget);
-    }
-
-    let framebuffer = _framebuffer;
-    let isCube = false;
-    let isRenderTarget3D = false;
-
-    if (renderTarget) {
-      const texture = renderTarget.texture;
-
-      if (texture.isDataTexture3D || texture.isDataTexture2DArray) {
-        isRenderTarget3D = true;
-      }
-
-      const __webglFramebuffer = properties.get(renderTarget).__webglFramebuffer;
-
-      if (renderTarget.isWebGLCubeRenderTarget) {
-        framebuffer = __webglFramebuffer[activeCubeFace];
-        isCube = true;
-      } else if (renderTarget.isWebGLMultisampleRenderTarget) {
-        framebuffer = properties.get(renderTarget).__webglMultisampledFramebuffer;
-      } else {
-        framebuffer = __webglFramebuffer;
-      }
-
-      _currentViewport.copy(renderTarget.viewport);
-
-      _currentScissor.copy(renderTarget.scissor);
-
-      _currentScissorTest = renderTarget.scissorTest;
-    } else {
-      _currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor();
-
-      _currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor();
-
-      _currentScissorTest = _scissorTest;
-    }
-
-    if (_currentFramebuffer !== framebuffer) {
-      _gl.bindFramebuffer(36160, framebuffer);
-
-      _currentFramebuffer = framebuffer;
-    }
-
-    state.viewport(_currentViewport);
-    state.scissor(_currentScissor);
-    state.setScissorTest(_currentScissorTest);
-
-    if (isCube) {
-      const textureProperties = properties.get(renderTarget.texture);
-
-      _gl.framebufferTexture2D(36160, 36064, 34069 + activeCubeFace, textureProperties.__webglTexture, activeMipmapLevel);
-    } else if (isRenderTarget3D) {
-      const textureProperties = properties.get(renderTarget.texture);
-      const layer = activeCubeFace || 0;
-
-      _gl.framebufferTextureLayer(36160, 36064, textureProperties.__webglTexture, activeMipmapLevel || 0, layer);
-    }
-  };
-
-  this.readRenderTargetPixels = function (renderTarget, x, y, width, height, buffer, activeCubeFaceIndex) {
-    if (!(renderTarget && renderTarget.isWebGLRenderTarget)) {
-      console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.');
-      return;
-    }
-
-    let framebuffer = properties.get(renderTarget).__webglFramebuffer;
-
-    if (renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== undefined) {
-      framebuffer = framebuffer[activeCubeFaceIndex];
-    }
-
-    if (framebuffer) {
-      let restore = false;
-
-      if (framebuffer !== _currentFramebuffer) {
-        _gl.bindFramebuffer(36160, framebuffer);
-
-        restore = true;
-      }
-
-      try {
-        const texture = renderTarget.texture;
-        const textureFormat = texture.format;
-        const textureType = texture.type;
-
-        if (textureFormat !== RGBAFormat && utils.convert(textureFormat) !== _gl.getParameter(35739)) {
-          console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.');
-          return;
-        }
-
-        const halfFloatSupportedByExt = textureType === HalfFloatType && (extensions.has('EXT_color_buffer_half_float') || capabilities.isWebGL2 && extensions.has('EXT_color_buffer_float'));
-
-        if (textureType !== UnsignedByteType && utils.convert(textureType) !== _gl.getParameter(35738) && // Edge and Chrome Mac < 52 (#9513)
-        !(textureType === FloatType && (capabilities.isWebGL2 || extensions.has('OES_texture_float') || extensions.has('WEBGL_color_buffer_float'))) && // Chrome Mac >= 52 and Firefox
-        !halfFloatSupportedByExt) {
-          console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.');
-          return;
-        }
-
-        if (_gl.checkFramebufferStatus(36160) === 36053) {
-          // the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)
-          if (x >= 0 && x <= renderTarget.width - width && y >= 0 && y <= renderTarget.height - height) {
-            _gl.readPixels(x, y, width, height, utils.convert(textureFormat), utils.convert(textureType), buffer);
-          }
-        } else {
-          console.error('THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.');
-        }
-      } finally {
-        if (restore) {
-          _gl.bindFramebuffer(36160, _currentFramebuffer);
-        }
-      }
-    }
-  };
-
-  this.copyFramebufferToTexture = function (position, texture, level = 0) {
-    const levelScale = Math.pow(2, -level);
-    const width = Math.floor(texture.image.width * levelScale);
-    const height = Math.floor(texture.image.height * levelScale);
-    const glFormat = utils.convert(texture.format);
-    textures.setTexture2D(texture, 0);
-
-    _gl.copyTexImage2D(3553, level, glFormat, position.x, position.y, width, height, 0);
-
-    state.unbindTexture();
-  };
-
-  this.copyTextureToTexture = function (position, srcTexture, dstTexture, level = 0) {
-    const width = srcTexture.image.width;
-    const height = srcTexture.image.height;
-    const glFormat = utils.convert(dstTexture.format);
-    const glType = utils.convert(dstTexture.type);
-    textures.setTexture2D(dstTexture, 0); // As another texture upload may have changed pixelStorei
-    // parameters, make sure they are correct for the dstTexture
-
-    _gl.pixelStorei(37440, dstTexture.flipY);
-
-    _gl.pixelStorei(37441, dstTexture.premultiplyAlpha);
-
-    _gl.pixelStorei(3317, dstTexture.unpackAlignment);
-
-    if (srcTexture.isDataTexture) {
-      _gl.texSubImage2D(3553, level, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data);
-    } else {
-      if (srcTexture.isCompressedTexture) {
-        _gl.compressedTexSubImage2D(3553, level, position.x, position.y, srcTexture.mipmaps[0].width, srcTexture.mipmaps[0].height, glFormat, srcTexture.mipmaps[0].data);
-      } else {
-        _gl.texSubImage2D(3553, level, position.x, position.y, glFormat, glType, srcTexture.image);
-      }
-    } // Generate mipmaps only when copying level 0
-
-
-    if (level === 0 && dstTexture.generateMipmaps) _gl.generateMipmap(3553);
-    state.unbindTexture();
-  };
-
-  this.copyTextureToTexture3D = function (sourceBox, position, srcTexture, dstTexture, level = 0) {
-    if (_this.isWebGL1Renderer) {
-      console.warn('THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.');
-      return;
-    }
-
-    const {
-      width,
-      height,
-      data
-    } = srcTexture.image;
-    const glFormat = utils.convert(dstTexture.format);
-    const glType = utils.convert(dstTexture.type);
-    let glTarget;
-
-    if (dstTexture.isDataTexture3D) {
-      textures.setTexture3D(dstTexture, 0);
-      glTarget = 32879;
-    } else if (dstTexture.isDataTexture2DArray) {
-      textures.setTexture2DArray(dstTexture, 0);
-      glTarget = 35866;
-    } else {
-      console.warn('THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.');
-      return;
-    }
-
-    _gl.pixelStorei(37440, dstTexture.flipY);
-
-    _gl.pixelStorei(37441, dstTexture.premultiplyAlpha);
-
-    _gl.pixelStorei(3317, dstTexture.unpackAlignment);
-
-    const unpackRowLen = _gl.getParameter(3314);
-
-    const unpackImageHeight = _gl.getParameter(32878);
-
-    const unpackSkipPixels = _gl.getParameter(3316);
-
-    const unpackSkipRows = _gl.getParameter(3315);
-
-    const unpackSkipImages = _gl.getParameter(32877);
-
-    _gl.pixelStorei(3314, width);
-
-    _gl.pixelStorei(32878, height);
-
-    _gl.pixelStorei(3316, sourceBox.min.x);
-
-    _gl.pixelStorei(3315, sourceBox.min.y);
-
-    _gl.pixelStorei(32877, sourceBox.min.z);
-
-    _gl.texSubImage3D(glTarget, level, position.x, position.y, position.z, sourceBox.max.x - sourceBox.min.x + 1, sourceBox.max.y - sourceBox.min.y + 1, sourceBox.max.z - sourceBox.min.z + 1, glFormat, glType, data);
-
-    _gl.pixelStorei(3314, unpackRowLen);
-
-    _gl.pixelStorei(32878, unpackImageHeight);
-
-    _gl.pixelStorei(3316, unpackSkipPixels);
-
-    _gl.pixelStorei(3315, unpackSkipRows);
-
-    _gl.pixelStorei(32877, unpackSkipImages); // Generate mipmaps only when copying level 0
-
-
-    if (level === 0 && dstTexture.generateMipmaps) _gl.generateMipmap(glTarget);
-    state.unbindTexture();
-  };
-
-  this.initTexture = function (texture) {
-    textures.setTexture2D(texture, 0);
-    state.unbindTexture();
-  };
-
-  this.resetState = function () {
-    state.reset();
-    bindingStates.reset();
-  };
-
-  if (typeof __THREE_DEVTOOLS__ !== 'undefined') {
-    __THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('observe', {
-      detail: this
-    })); // eslint-disable-line no-undef
-
-  }
-}
-
-class WebGL1Renderer extends WebGLRenderer {}
-
-exports.WebGL1Renderer = WebGL1Renderer;
-WebGL1Renderer.prototype.isWebGL1Renderer = true;
-
-class FogExp2 {
-  constructor(color, density) {
-    this.name = '';
-    this.color = new Color(color);
-    this.density = density !== undefined ? density : 0.00025;
-  }
-
-  clone() {
-    return new FogExp2(this.color, this.density);
-  }
-
-  toJSON()
-  /* meta */
-  {
-    return {
-      type: 'FogExp2',
-      color: this.color.getHex(),
-      density: this.density
-    };
-  }
-
-}
-
-exports.FogExp2 = FogExp2;
-FogExp2.prototype.isFogExp2 = true;
-
-class Fog {
-  constructor(color, near, far) {
-    this.name = '';
-    this.color = new Color(color);
-    this.near = near !== undefined ? near : 1;
-    this.far = far !== undefined ? far : 1000;
-  }
-
-  clone() {
-    return new Fog(this.color, this.near, this.far);
-  }
-
-  toJSON()
-  /* meta */
-  {
-    return {
-      type: 'Fog',
-      color: this.color.getHex(),
-      near: this.near,
-      far: this.far
-    };
-  }
-
-}
-
-exports.Fog = Fog;
-Fog.prototype.isFog = true;
-
-class Scene extends Object3D {
-  constructor() {
-    super();
-    this.type = 'Scene';
-    this.background = null;
-    this.environment = null;
-    this.fog = null;
-    this.overrideMaterial = null;
-    this.autoUpdate = true; // checked by the renderer
-
-    if (typeof __THREE_DEVTOOLS__ !== 'undefined') {
-      __THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('observe', {
-        detail: this
-      })); // eslint-disable-line no-undef
-
-    }
-  }
-
-  copy(source, recursive) {
-    super.copy(source, recursive);
-    if (source.background !== null) this.background = source.background.clone();
-    if (source.environment !== null) this.environment = source.environment.clone();
-    if (source.fog !== null) this.fog = source.fog.clone();
-    if (source.overrideMaterial !== null) this.overrideMaterial = source.overrideMaterial.clone();
-    this.autoUpdate = source.autoUpdate;
-    this.matrixAutoUpdate = source.matrixAutoUpdate;
-    return this;
-  }
-
-  toJSON(meta) {
-    const data = super.toJSON(meta);
-    if (this.background !== null) data.object.background = this.background.toJSON(meta);
-    if (this.environment !== null) data.object.environment = this.environment.toJSON(meta);
-    if (this.fog !== null) data.object.fog = this.fog.toJSON();
-    return data;
-  }
-
-}
-
-exports.Scene = Scene;
-Scene.prototype.isScene = true;
-
-function InterleavedBuffer(array, stride) {
-  this.array = array;
-  this.stride = stride;
-  this.count = array !== undefined ? array.length / stride : 0;
-  this.usage = StaticDrawUsage;
-  this.updateRange = {
-    offset: 0,
-    count: -1
-  };
-  this.version = 0;
-  this.uuid = MathUtils.generateUUID();
-}
-
-Object.defineProperty(InterleavedBuffer.prototype, 'needsUpdate', {
-  set: function (value) {
-    if (value === true) this.version++;
-  }
-});
-Object.assign(InterleavedBuffer.prototype, {
-  isInterleavedBuffer: true,
-  onUploadCallback: function () {},
-  setUsage: function (value) {
-    this.usage = value;
-    return this;
-  },
-  copy: function (source) {
-    this.array = new source.array.constructor(source.array);
-    this.count = source.count;
-    this.stride = source.stride;
-    this.usage = source.usage;
-    return this;
-  },
-  copyAt: function (index1, attribute, index2) {
-    index1 *= this.stride;
-    index2 *= attribute.stride;
-
-    for (let i = 0, l = this.stride; i < l; i++) {
-      this.array[index1 + i] = attribute.array[index2 + i];
-    }
-
-    return this;
-  },
-  set: function (value, offset = 0) {
-    this.array.set(value, offset);
-    return this;
-  },
-  clone: function (data) {
-    if (data.arrayBuffers === undefined) {
-      data.arrayBuffers = {};
-    }
-
-    if (this.array.buffer._uuid === undefined) {
-      this.array.buffer._uuid = MathUtils.generateUUID();
-    }
-
-    if (data.arrayBuffers[this.array.buffer._uuid] === undefined) {
-      data.arrayBuffers[this.array.buffer._uuid] = this.array.slice(0).buffer;
-    }
-
-    const array = new this.array.constructor(data.arrayBuffers[this.array.buffer._uuid]);
-    const ib = new InterleavedBuffer(array, this.stride);
-    ib.setUsage(this.usage);
-    return ib;
-  },
-  onUpload: function (callback) {
-    this.onUploadCallback = callback;
-    return this;
-  },
-  toJSON: function (data) {
-    if (data.arrayBuffers === undefined) {
-      data.arrayBuffers = {};
-    } // generate UUID for array buffer if necessary
-
-
-    if (this.array.buffer._uuid === undefined) {
-      this.array.buffer._uuid = MathUtils.generateUUID();
-    }
-
-    if (data.arrayBuffers[this.array.buffer._uuid] === undefined) {
-      data.arrayBuffers[this.array.buffer._uuid] = Array.prototype.slice.call(new Uint32Array(this.array.buffer));
-    } //
-
-
-    return {
-      uuid: this.uuid,
-      buffer: this.array.buffer._uuid,
-      type: this.array.constructor.name,
-      stride: this.stride
-    };
-  }
-});
-
-const _vector$6 = new Vector3();
-
-function InterleavedBufferAttribute(interleavedBuffer, itemSize, offset, normalized) {
-  this.name = '';
-  this.data = interleavedBuffer;
-  this.itemSize = itemSize;
-  this.offset = offset;
-  this.normalized = normalized === true;
-}
-
-Object.defineProperties(InterleavedBufferAttribute.prototype, {
-  count: {
-    get: function () {
-      return this.data.count;
-    }
-  },
-  array: {
-    get: function () {
-      return this.data.array;
-    }
-  },
-  needsUpdate: {
-    set: function (value) {
-      this.data.needsUpdate = value;
-    }
-  }
-});
-Object.assign(InterleavedBufferAttribute.prototype, {
-  isInterleavedBufferAttribute: true,
-  applyMatrix4: function (m) {
-    for (let i = 0, l = this.data.count; i < l; i++) {
-      _vector$6.x = this.getX(i);
-      _vector$6.y = this.getY(i);
-      _vector$6.z = this.getZ(i);
-
-      _vector$6.applyMatrix4(m);
-
-      this.setXYZ(i, _vector$6.x, _vector$6.y, _vector$6.z);
-    }
-
-    return this;
-  },
-  setX: function (index, x) {
-    this.data.array[index * this.data.stride + this.offset] = x;
-    return this;
-  },
-  setY: function (index, y) {
-    this.data.array[index * this.data.stride + this.offset + 1] = y;
-    return this;
-  },
-  setZ: function (index, z) {
-    this.data.array[index * this.data.stride + this.offset + 2] = z;
-    return this;
-  },
-  setW: function (index, w) {
-    this.data.array[index * this.data.stride + this.offset + 3] = w;
-    return this;
-  },
-  getX: function (index) {
-    return this.data.array[index * this.data.stride + this.offset];
-  },
-  getY: function (index) {
-    return this.data.array[index * this.data.stride + this.offset + 1];
-  },
-  getZ: function (index) {
-    return this.data.array[index * this.data.stride + this.offset + 2];
-  },
-  getW: function (index) {
-    return this.data.array[index * this.data.stride + this.offset + 3];
-  },
-  setXY: function (index, x, y) {
-    index = index * this.data.stride + this.offset;
-    this.data.array[index + 0] = x;
-    this.data.array[index + 1] = y;
-    return this;
-  },
-  setXYZ: function (index, x, y, z) {
-    index = index * this.data.stride + this.offset;
-    this.data.array[index + 0] = x;
-    this.data.array[index + 1] = y;
-    this.data.array[index + 2] = z;
-    return this;
-  },
-  setXYZW: function (index, x, y, z, w) {
-    index = index * this.data.stride + this.offset;
-    this.data.array[index + 0] = x;
-    this.data.array[index + 1] = y;
-    this.data.array[index + 2] = z;
-    this.data.array[index + 3] = w;
-    return this;
-  },
-  clone: function (data) {
-    if (data === undefined) {
-      console.log('THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.');
-      const array = [];
-
-      for (let i = 0; i < this.count; i++) {
-        const index = i * this.data.stride + this.offset;
-
-        for (let j = 0; j < this.itemSize; j++) {
-          array.push(this.data.array[index + j]);
-        }
-      }
-
-      return new BufferAttribute(new this.array.constructor(array), this.itemSize, this.normalized);
-    } else {
-      if (data.interleavedBuffers === undefined) {
-        data.interleavedBuffers = {};
-      }
-
-      if (data.interleavedBuffers[this.data.uuid] === undefined) {
-        data.interleavedBuffers[this.data.uuid] = this.data.clone(data);
-      }
-
-      return new InterleavedBufferAttribute(data.interleavedBuffers[this.data.uuid], this.itemSize, this.offset, this.normalized);
-    }
-  },
-  toJSON: function (data) {
-    if (data === undefined) {
-      console.log('THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.');
-      const array = [];
-
-      for (let i = 0; i < this.count; i++) {
-        const index = i * this.data.stride + this.offset;
-
-        for (let j = 0; j < this.itemSize; j++) {
-          array.push(this.data.array[index + j]);
-        }
-      } // deinterleave data and save it as an ordinary buffer attribute for now
-
-
-      return {
-        itemSize: this.itemSize,
-        type: this.array.constructor.name,
-        array: array,
-        normalized: this.normalized
-      };
-    } else {
-      // save as true interlaved attribtue
-      if (data.interleavedBuffers === undefined) {
-        data.interleavedBuffers = {};
-      }
-
-      if (data.interleavedBuffers[this.data.uuid] === undefined) {
-        data.interleavedBuffers[this.data.uuid] = this.data.toJSON(data);
-      }
-
-      return {
-        isInterleavedBufferAttribute: true,
-        itemSize: this.itemSize,
-        data: this.data.uuid,
-        offset: this.offset,
-        normalized: this.normalized
-      };
-    }
-  }
-});
-/**
- * parameters = {
- *  color: <hex>,
- *  map: new THREE.Texture( <Image> ),
- *  alphaMap: new THREE.Texture( <Image> ),
- *  rotation: <float>,
- *  sizeAttenuation: <bool>
- * }
- */
-
-class SpriteMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'SpriteMaterial';
-    this.color = new Color(0xffffff);
-    this.map = null;
-    this.alphaMap = null;
-    this.rotation = 0;
-    this.sizeAttenuation = true;
-    this.transparent = true;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.color.copy(source.color);
-    this.map = source.map;
-    this.alphaMap = source.alphaMap;
-    this.rotation = source.rotation;
-    this.sizeAttenuation = source.sizeAttenuation;
-    return this;
-  }
-
-}
-
-exports.SpriteMaterial = SpriteMaterial;
-SpriteMaterial.prototype.isSpriteMaterial = true;
-
-let _geometry;
-
-const _intersectPoint =
-/*@__PURE__*/
-new Vector3();
-
-const _worldScale =
-/*@__PURE__*/
-new Vector3();
-
-const _mvPosition =
-/*@__PURE__*/
-new Vector3();
-
-const _alignedPosition =
-/*@__PURE__*/
-new Vector2();
-
-const _rotatedPosition =
-/*@__PURE__*/
-new Vector2();
-
-const _viewWorldMatrix =
-/*@__PURE__*/
-new Matrix4();
-
-const _vA$1 =
-/*@__PURE__*/
-new Vector3();
-
-const _vB$1 =
-/*@__PURE__*/
-new Vector3();
-
-const _vC$1 =
-/*@__PURE__*/
-new Vector3();
-
-const _uvA$1 =
-/*@__PURE__*/
-new Vector2();
-
-const _uvB$1 =
-/*@__PURE__*/
-new Vector2();
-
-const _uvC$1 =
-/*@__PURE__*/
-new Vector2();
-
-class Sprite extends Object3D {
-  constructor(material) {
-    super();
-    this.type = 'Sprite';
-
-    if (_geometry === undefined) {
-      _geometry = new BufferGeometry();
-      const float32Array = new Float32Array([-0.5, -0.5, 0, 0, 0, 0.5, -0.5, 0, 1, 0, 0.5, 0.5, 0, 1, 1, -0.5, 0.5, 0, 0, 1]);
-      const interleavedBuffer = new InterleavedBuffer(float32Array, 5);
-
-      _geometry.setIndex([0, 1, 2, 0, 2, 3]);
-
-      _geometry.setAttribute('position', new InterleavedBufferAttribute(interleavedBuffer, 3, 0, false));
-
-      _geometry.setAttribute('uv', new InterleavedBufferAttribute(interleavedBuffer, 2, 3, false));
-    }
-
-    this.geometry = _geometry;
-    this.material = material !== undefined ? material : new SpriteMaterial();
-    this.center = new Vector2(0.5, 0.5);
-  }
-
-  raycast(raycaster, intersects) {
-    if (raycaster.camera === null) {
-      console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.');
-    }
-
-    _worldScale.setFromMatrixScale(this.matrixWorld);
-
-    _viewWorldMatrix.copy(raycaster.camera.matrixWorld);
-
-    this.modelViewMatrix.multiplyMatrices(raycaster.camera.matrixWorldInverse, this.matrixWorld);
-
-    _mvPosition.setFromMatrixPosition(this.modelViewMatrix);
-
-    if (raycaster.camera.isPerspectiveCamera && this.material.sizeAttenuation === false) {
-      _worldScale.multiplyScalar(-_mvPosition.z);
-    }
-
-    const rotation = this.material.rotation;
-    let sin, cos;
-
-    if (rotation !== 0) {
-      cos = Math.cos(rotation);
-      sin = Math.sin(rotation);
-    }
-
-    const center = this.center;
-    transformVertex(_vA$1.set(-0.5, -0.5, 0), _mvPosition, center, _worldScale, sin, cos);
-    transformVertex(_vB$1.set(0.5, -0.5, 0), _mvPosition, center, _worldScale, sin, cos);
-    transformVertex(_vC$1.set(0.5, 0.5, 0), _mvPosition, center, _worldScale, sin, cos);
-
-    _uvA$1.set(0, 0);
-
-    _uvB$1.set(1, 0);
-
-    _uvC$1.set(1, 1); // check first triangle
-
-
-    let intersect = raycaster.ray.intersectTriangle(_vA$1, _vB$1, _vC$1, false, _intersectPoint);
-
-    if (intersect === null) {
-      // check second triangle
-      transformVertex(_vB$1.set(-0.5, 0.5, 0), _mvPosition, center, _worldScale, sin, cos);
-
-      _uvB$1.set(0, 1);
-
-      intersect = raycaster.ray.intersectTriangle(_vA$1, _vC$1, _vB$1, false, _intersectPoint);
-
-      if (intersect === null) {
-        return;
-      }
-    }
-
-    const distance = raycaster.ray.origin.distanceTo(_intersectPoint);
-    if (distance < raycaster.near || distance > raycaster.far) return;
-    intersects.push({
-      distance: distance,
-      point: _intersectPoint.clone(),
-      uv: Triangle.getUV(_intersectPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2()),
-      face: null,
-      object: this
-    });
-  }
-
-  copy(source) {
-    super.copy(source);
-    if (source.center !== undefined) this.center.copy(source.center);
-    this.material = source.material;
-    return this;
-  }
-
-}
-
-exports.Sprite = Sprite;
-Sprite.prototype.isSprite = true;
-
-function transformVertex(vertexPosition, mvPosition, center, scale, sin, cos) {
-  // compute position in camera space
-  _alignedPosition.subVectors(vertexPosition, center).addScalar(0.5).multiply(scale); // to check if rotation is not zero
-
-
-  if (sin !== undefined) {
-    _rotatedPosition.x = cos * _alignedPosition.x - sin * _alignedPosition.y;
-    _rotatedPosition.y = sin * _alignedPosition.x + cos * _alignedPosition.y;
-  } else {
-    _rotatedPosition.copy(_alignedPosition);
-  }
-
-  vertexPosition.copy(mvPosition);
-  vertexPosition.x += _rotatedPosition.x;
-  vertexPosition.y += _rotatedPosition.y; // transform to world space
-
-  vertexPosition.applyMatrix4(_viewWorldMatrix);
-}
-
-const _v1$4 =
-/*@__PURE__*/
-new Vector3();
-
-const _v2$2 =
-/*@__PURE__*/
-new Vector3();
-
-class LOD extends Object3D {
-  constructor() {
-    super();
-    this._currentLevel = 0;
-    this.type = 'LOD';
-    Object.defineProperties(this, {
-      levels: {
-        enumerable: true,
-        value: []
-      },
-      isLOD: {
-        value: true
-      }
-    });
-    this.autoUpdate = true;
-  }
-
-  copy(source) {
-    super.copy(source, false);
-    const levels = source.levels;
-
-    for (let i = 0, l = levels.length; i < l; i++) {
-      const level = levels[i];
-      this.addLevel(level.object.clone(), level.distance);
-    }
-
-    this.autoUpdate = source.autoUpdate;
-    return this;
-  }
-
-  addLevel(object, distance = 0) {
-    distance = Math.abs(distance);
-    const levels = this.levels;
-    let l;
-
-    for (l = 0; l < levels.length; l++) {
-      if (distance < levels[l].distance) {
-        break;
-      }
-    }
-
-    levels.splice(l, 0, {
-      distance: distance,
-      object: object
-    });
-    this.add(object);
-    return this;
-  }
-
-  getCurrentLevel() {
-    return this._currentLevel;
-  }
-
-  getObjectForDistance(distance) {
-    const levels = this.levels;
-
-    if (levels.length > 0) {
-      let i, l;
-
-      for (i = 1, l = levels.length; i < l; i++) {
-        if (distance < levels[i].distance) {
-          break;
-        }
-      }
-
-      return levels[i - 1].object;
-    }
-
-    return null;
-  }
-
-  raycast(raycaster, intersects) {
-    const levels = this.levels;
-
-    if (levels.length > 0) {
-      _v1$4.setFromMatrixPosition(this.matrixWorld);
-
-      const distance = raycaster.ray.origin.distanceTo(_v1$4);
-      this.getObjectForDistance(distance).raycast(raycaster, intersects);
-    }
-  }
-
-  update(camera) {
-    const levels = this.levels;
-
-    if (levels.length > 1) {
-      _v1$4.setFromMatrixPosition(camera.matrixWorld);
-
-      _v2$2.setFromMatrixPosition(this.matrixWorld);
-
-      const distance = _v1$4.distanceTo(_v2$2) / camera.zoom;
-      levels[0].object.visible = true;
-      let i, l;
-
-      for (i = 1, l = levels.length; i < l; i++) {
-        if (distance >= levels[i].distance) {
-          levels[i - 1].object.visible = false;
-          levels[i].object.visible = true;
-        } else {
-          break;
-        }
-      }
-
-      this._currentLevel = i - 1;
-
-      for (; i < l; i++) {
-        levels[i].object.visible = false;
-      }
-    }
-  }
-
-  toJSON(meta) {
-    const data = super.toJSON(meta);
-    if (this.autoUpdate === false) data.object.autoUpdate = false;
-    data.object.levels = [];
-    const levels = this.levels;
-
-    for (let i = 0, l = levels.length; i < l; i++) {
-      const level = levels[i];
-      data.object.levels.push({
-        object: level.object.uuid,
-        distance: level.distance
-      });
-    }
-
-    return data;
-  }
-
-}
-
-exports.LOD = LOD;
-
-const _basePosition = new Vector3();
-
-const _skinIndex = new Vector4();
-
-const _skinWeight = new Vector4();
-
-const _vector$7 = new Vector3();
-
-const _matrix$1 = new Matrix4();
-
-function SkinnedMesh(geometry, material) {
-  Mesh.call(this, geometry, material);
-  this.type = 'SkinnedMesh';
-  this.bindMode = 'attached';
-  this.bindMatrix = new Matrix4();
-  this.bindMatrixInverse = new Matrix4();
-}
-
-SkinnedMesh.prototype = Object.assign(Object.create(Mesh.prototype), {
-  constructor: SkinnedMesh,
-  isSkinnedMesh: true,
-  copy: function (source) {
-    Mesh.prototype.copy.call(this, source);
-    this.bindMode = source.bindMode;
-    this.bindMatrix.copy(source.bindMatrix);
-    this.bindMatrixInverse.copy(source.bindMatrixInverse);
-    this.skeleton = source.skeleton;
-    return this;
-  },
-  bind: function (skeleton, bindMatrix) {
-    this.skeleton = skeleton;
-
-    if (bindMatrix === undefined) {
-      this.updateMatrixWorld(true);
-      this.skeleton.calculateInverses();
-      bindMatrix = this.matrixWorld;
-    }
-
-    this.bindMatrix.copy(bindMatrix);
-    this.bindMatrixInverse.copy(bindMatrix).invert();
-  },
-  pose: function () {
-    this.skeleton.pose();
-  },
-  normalizeSkinWeights: function () {
-    const vector = new Vector4();
-    const skinWeight = this.geometry.attributes.skinWeight;
-
-    for (let i = 0, l = skinWeight.count; i < l; i++) {
-      vector.x = skinWeight.getX(i);
-      vector.y = skinWeight.getY(i);
-      vector.z = skinWeight.getZ(i);
-      vector.w = skinWeight.getW(i);
-      const scale = 1.0 / vector.manhattanLength();
-
-      if (scale !== Infinity) {
-        vector.multiplyScalar(scale);
-      } else {
-        vector.set(1, 0, 0, 0); // do something reasonable
-      }
-
-      skinWeight.setXYZW(i, vector.x, vector.y, vector.z, vector.w);
-    }
-  },
-  updateMatrixWorld: function (force) {
-    Mesh.prototype.updateMatrixWorld.call(this, force);
-
-    if (this.bindMode === 'attached') {
-      this.bindMatrixInverse.copy(this.matrixWorld).invert();
-    } else if (this.bindMode === 'detached') {
-      this.bindMatrixInverse.copy(this.bindMatrix).invert();
-    } else {
-      console.warn('THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode);
-    }
-  },
-  boneTransform: function (index, target) {
-    const skeleton = this.skeleton;
-    const geometry = this.geometry;
-
-    _skinIndex.fromBufferAttribute(geometry.attributes.skinIndex, index);
-
-    _skinWeight.fromBufferAttribute(geometry.attributes.skinWeight, index);
-
-    _basePosition.fromBufferAttribute(geometry.attributes.position, index).applyMatrix4(this.bindMatrix);
-
-    target.set(0, 0, 0);
-
-    for (let i = 0; i < 4; i++) {
-      const weight = _skinWeight.getComponent(i);
-
-      if (weight !== 0) {
-        const boneIndex = _skinIndex.getComponent(i);
-
-        _matrix$1.multiplyMatrices(skeleton.bones[boneIndex].matrixWorld, skeleton.boneInverses[boneIndex]);
-
-        target.addScaledVector(_vector$7.copy(_basePosition).applyMatrix4(_matrix$1), weight);
-      }
-    }
-
-    return target.applyMatrix4(this.bindMatrixInverse);
-  }
-});
-
-function Bone() {
-  Object3D.call(this);
-  this.type = 'Bone';
-}
-
-Bone.prototype = Object.assign(Object.create(Object3D.prototype), {
-  constructor: Bone,
-  isBone: true
-});
-
-const _offsetMatrix =
-/*@__PURE__*/
-new Matrix4();
-
-const _identityMatrix =
-/*@__PURE__*/
-new Matrix4();
-
-class Skeleton {
-  constructor(bones = [], boneInverses = []) {
-    this.uuid = MathUtils.generateUUID();
-    this.bones = bones.slice(0);
-    this.boneInverses = boneInverses;
-    this.boneMatrices = null;
-    this.boneTexture = null;
-    this.boneTextureSize = 0;
-    this.frame = -1;
-    this.init();
-  }
-
-  init() {
-    const bones = this.bones;
-    const boneInverses = this.boneInverses;
-    this.boneMatrices = new Float32Array(bones.length * 16); // calculate inverse bone matrices if necessary
-
-    if (boneInverses.length === 0) {
-      this.calculateInverses();
-    } else {
-      // handle special case
-      if (bones.length !== boneInverses.length) {
-        console.warn('THREE.Skeleton: Number of inverse bone matrices does not match amount of bones.');
-        this.boneInverses = [];
-
-        for (let i = 0, il = this.bones.length; i < il; i++) {
-          this.boneInverses.push(new Matrix4());
-        }
-      }
-    }
-  }
-
-  calculateInverses() {
-    this.boneInverses.length = 0;
-
-    for (let i = 0, il = this.bones.length; i < il; i++) {
-      const inverse = new Matrix4();
-
-      if (this.bones[i]) {
-        inverse.copy(this.bones[i].matrixWorld).invert();
-      }
-
-      this.boneInverses.push(inverse);
-    }
-  }
-
-  pose() {
-    // recover the bind-time world matrices
-    for (let i = 0, il = this.bones.length; i < il; i++) {
-      const bone = this.bones[i];
-
-      if (bone) {
-        bone.matrixWorld.copy(this.boneInverses[i]).invert();
-      }
-    } // compute the local matrices, positions, rotations and scales
-
-
-    for (let i = 0, il = this.bones.length; i < il; i++) {
-      const bone = this.bones[i];
-
-      if (bone) {
-        if (bone.parent && bone.parent.isBone) {
-          bone.matrix.copy(bone.parent.matrixWorld).invert();
-          bone.matrix.multiply(bone.matrixWorld);
-        } else {
-          bone.matrix.copy(bone.matrixWorld);
-        }
-
-        bone.matrix.decompose(bone.position, bone.quaternion, bone.scale);
-      }
-    }
-  }
-
-  update() {
-    const bones = this.bones;
-    const boneInverses = this.boneInverses;
-    const boneMatrices = this.boneMatrices;
-    const boneTexture = this.boneTexture; // flatten bone matrices to array
-
-    for (let i = 0, il = bones.length; i < il; i++) {
-      // compute the offset between the current and the original transform
-      const matrix = bones[i] ? bones[i].matrixWorld : _identityMatrix;
-
-      _offsetMatrix.multiplyMatrices(matrix, boneInverses[i]);
-
-      _offsetMatrix.toArray(boneMatrices, i * 16);
-    }
-
-    if (boneTexture !== null) {
-      boneTexture.needsUpdate = true;
-    }
-  }
-
-  clone() {
-    return new Skeleton(this.bones, this.boneInverses);
-  }
-
-  getBoneByName(name) {
-    for (let i = 0, il = this.bones.length; i < il; i++) {
-      const bone = this.bones[i];
-
-      if (bone.name === name) {
-        return bone;
-      }
-    }
-
-    return undefined;
-  }
-
-  dispose() {
-    if (this.boneTexture !== null) {
-      this.boneTexture.dispose();
-      this.boneTexture = null;
-    }
-  }
-
-  fromJSON(json, bones) {
-    this.uuid = json.uuid;
-
-    for (let i = 0, l = json.bones.length; i < l; i++) {
-      const uuid = json.bones[i];
-      let bone = bones[uuid];
-
-      if (bone === undefined) {
-        console.warn('THREE.Skeleton: No bone found with UUID:', uuid);
-        bone = new Bone();
-      }
-
-      this.bones.push(bone);
-      this.boneInverses.push(new Matrix4().fromArray(json.boneInverses[i]));
-    }
-
-    this.init();
-    return this;
-  }
-
-  toJSON() {
-    const data = {
-      metadata: {
-        version: 4.5,
-        type: 'Skeleton',
-        generator: 'Skeleton.toJSON'
-      },
-      bones: [],
-      boneInverses: []
-    };
-    data.uuid = this.uuid;
-    const bones = this.bones;
-    const boneInverses = this.boneInverses;
-
-    for (let i = 0, l = bones.length; i < l; i++) {
-      const bone = bones[i];
-      data.bones.push(bone.uuid);
-      const boneInverse = boneInverses[i];
-      data.boneInverses.push(boneInverse.toArray());
-    }
-
-    return data;
-  }
-
-}
-
-exports.Skeleton = Skeleton;
-
-const _instanceLocalMatrix = new Matrix4();
-
-const _instanceWorldMatrix = new Matrix4();
-
-const _instanceIntersects = [];
-
-const _mesh = new Mesh();
-
-function InstancedMesh(geometry, material, count) {
-  Mesh.call(this, geometry, material);
-  this.instanceMatrix = new BufferAttribute(new Float32Array(count * 16), 16);
-  this.instanceColor = null;
-  this.count = count;
-  this.frustumCulled = false;
-}
-
-InstancedMesh.prototype = Object.assign(Object.create(Mesh.prototype), {
-  constructor: InstancedMesh,
-  isInstancedMesh: true,
-  copy: function (source) {
-    Mesh.prototype.copy.call(this, source);
-    this.instanceMatrix.copy(source.instanceMatrix);
-    if (source.instanceColor !== null) this.instanceColor = source.instanceColor.clone();
-    this.count = source.count;
-    return this;
-  },
-  getColorAt: function (index, color) {
-    color.fromArray(this.instanceColor.array, index * 3);
-  },
-  getMatrixAt: function (index, matrix) {
-    matrix.fromArray(this.instanceMatrix.array, index * 16);
-  },
-  raycast: function (raycaster, intersects) {
-    const matrixWorld = this.matrixWorld;
-    const raycastTimes = this.count;
-    _mesh.geometry = this.geometry;
-    _mesh.material = this.material;
-    if (_mesh.material === undefined) return;
-
-    for (let instanceId = 0; instanceId < raycastTimes; instanceId++) {
-      // calculate the world matrix for each instance
-      this.getMatrixAt(instanceId, _instanceLocalMatrix);
-
-      _instanceWorldMatrix.multiplyMatrices(matrixWorld, _instanceLocalMatrix); // the mesh represents this single instance
-
-
-      _mesh.matrixWorld = _instanceWorldMatrix;
-
-      _mesh.raycast(raycaster, _instanceIntersects); // process the result of raycast
-
-
-      for (let i = 0, l = _instanceIntersects.length; i < l; i++) {
-        const intersect = _instanceIntersects[i];
-        intersect.instanceId = instanceId;
-        intersect.object = this;
-        intersects.push(intersect);
-      }
-
-      _instanceIntersects.length = 0;
-    }
-  },
-  setColorAt: function (index, color) {
-    if (this.instanceColor === null) {
-      this.instanceColor = new BufferAttribute(new Float32Array(this.count * 3), 3);
-    }
-
-    color.toArray(this.instanceColor.array, index * 3);
-  },
-  setMatrixAt: function (index, matrix) {
-    matrix.toArray(this.instanceMatrix.array, index * 16);
-  },
-  updateMorphTargets: function () {},
-  dispose: function () {
-    this.dispatchEvent({
-      type: 'dispose'
-    });
-  }
-});
-/**
- * parameters = {
- *  color: <hex>,
- *  opacity: <float>,
- *
- *  linewidth: <float>,
- *  linecap: "round",
- *  linejoin: "round"
- * }
- */
-
-class LineBasicMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'LineBasicMaterial';
-    this.color = new Color(0xffffff);
-    this.linewidth = 1;
-    this.linecap = 'round';
-    this.linejoin = 'round';
-    this.morphTargets = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.color.copy(source.color);
-    this.linewidth = source.linewidth;
-    this.linecap = source.linecap;
-    this.linejoin = source.linejoin;
-    this.morphTargets = source.morphTargets;
-    return this;
-  }
-
-}
-
-exports.LineBasicMaterial = LineBasicMaterial;
-LineBasicMaterial.prototype.isLineBasicMaterial = true;
-
-const _start = new Vector3();
-
-const _end = new Vector3();
-
-const _inverseMatrix$1 = new Matrix4();
-
-const _ray$1 = new Ray();
-
-const _sphere$2 = new Sphere();
-
-function Line(geometry = new BufferGeometry(), material = new LineBasicMaterial()) {
-  Object3D.call(this);
-  this.type = 'Line';
-  this.geometry = geometry;
-  this.material = material;
-  this.updateMorphTargets();
-}
-
-Line.prototype = Object.assign(Object.create(Object3D.prototype), {
-  constructor: Line,
-  isLine: true,
-  copy: function (source) {
-    Object3D.prototype.copy.call(this, source);
-    this.material = source.material;
-    this.geometry = source.geometry;
-    return this;
-  },
-  computeLineDistances: function () {
-    const geometry = this.geometry;
-
-    if (geometry.isBufferGeometry) {
-      // we assume non-indexed geometry
-      if (geometry.index === null) {
-        const positionAttribute = geometry.attributes.position;
-        const lineDistances = [0];
-
-        for (let i = 1, l = positionAttribute.count; i < l; i++) {
-          _start.fromBufferAttribute(positionAttribute, i - 1);
-
-          _end.fromBufferAttribute(positionAttribute, i);
-
-          lineDistances[i] = lineDistances[i - 1];
-          lineDistances[i] += _start.distanceTo(_end);
-        }
-
-        geometry.setAttribute('lineDistance', new Float32BufferAttribute(lineDistances, 1));
-      } else {
-        console.warn('THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.');
-      }
-    } else if (geometry.isGeometry) {
-      console.error('THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
-    }
-
-    return this;
-  },
-  raycast: function (raycaster, intersects) {
-    const geometry = this.geometry;
-    const matrixWorld = this.matrixWorld;
-    const threshold = raycaster.params.Line.threshold; // Checking boundingSphere distance to ray
-
-    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
-
-    _sphere$2.copy(geometry.boundingSphere);
-
-    _sphere$2.applyMatrix4(matrixWorld);
-
-    _sphere$2.radius += threshold;
-    if (raycaster.ray.intersectsSphere(_sphere$2) === false) return; //
-
-    _inverseMatrix$1.copy(matrixWorld).invert();
-
-    _ray$1.copy(raycaster.ray).applyMatrix4(_inverseMatrix$1);
-
-    const localThreshold = threshold / ((this.scale.x + this.scale.y + this.scale.z) / 3);
-    const localThresholdSq = localThreshold * localThreshold;
-    const vStart = new Vector3();
-    const vEnd = new Vector3();
-    const interSegment = new Vector3();
-    const interRay = new Vector3();
-    const step = this.isLineSegments ? 2 : 1;
-
-    if (geometry.isBufferGeometry) {
-      const index = geometry.index;
-      const attributes = geometry.attributes;
-      const positionAttribute = attributes.position;
-
-      if (index !== null) {
-        const indices = index.array;
-
-        for (let i = 0, l = indices.length - 1; i < l; i += step) {
-          const a = indices[i];
-          const b = indices[i + 1];
-          vStart.fromBufferAttribute(positionAttribute, a);
-          vEnd.fromBufferAttribute(positionAttribute, b);
-
-          const distSq = _ray$1.distanceSqToSegment(vStart, vEnd, interRay, interSegment);
-
-          if (distSq > localThresholdSq) continue;
-          interRay.applyMatrix4(this.matrixWorld); //Move back to world space for distance calculation
-
-          const distance = raycaster.ray.origin.distanceTo(interRay);
-          if (distance < raycaster.near || distance > raycaster.far) continue;
-          intersects.push({
-            distance: distance,
-            // What do we want? intersection point on the ray or on the segment??
-            // point: raycaster.ray.at( distance ),
-            point: interSegment.clone().applyMatrix4(this.matrixWorld),
-            index: i,
-            face: null,
-            faceIndex: null,
-            object: this
-          });
-        }
-      } else {
-        for (let i = 0, l = positionAttribute.count - 1; i < l; i += step) {
-          vStart.fromBufferAttribute(positionAttribute, i);
-          vEnd.fromBufferAttribute(positionAttribute, i + 1);
-
-          const distSq = _ray$1.distanceSqToSegment(vStart, vEnd, interRay, interSegment);
-
-          if (distSq > localThresholdSq) continue;
-          interRay.applyMatrix4(this.matrixWorld); //Move back to world space for distance calculation
-
-          const distance = raycaster.ray.origin.distanceTo(interRay);
-          if (distance < raycaster.near || distance > raycaster.far) continue;
-          intersects.push({
-            distance: distance,
-            // What do we want? intersection point on the ray or on the segment??
-            // point: raycaster.ray.at( distance ),
-            point: interSegment.clone().applyMatrix4(this.matrixWorld),
-            index: i,
-            face: null,
-            faceIndex: null,
-            object: this
-          });
-        }
-      }
-    } else if (geometry.isGeometry) {
-      console.error('THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
-    }
-  },
-  updateMorphTargets: function () {
-    const geometry = this.geometry;
-
-    if (geometry.isBufferGeometry) {
-      const morphAttributes = geometry.morphAttributes;
-      const keys = Object.keys(morphAttributes);
-
-      if (keys.length > 0) {
-        const morphAttribute = morphAttributes[keys[0]];
-
-        if (morphAttribute !== undefined) {
-          this.morphTargetInfluences = [];
-          this.morphTargetDictionary = {};
-
-          for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
-            const name = morphAttribute[m].name || String(m);
-            this.morphTargetInfluences.push(0);
-            this.morphTargetDictionary[name] = m;
-          }
-        }
-      }
-    } else {
-      const morphTargets = geometry.morphTargets;
-
-      if (morphTargets !== undefined && morphTargets.length > 0) {
-        console.error('THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.');
-      }
-    }
-  }
-});
-
-const _start$1 = new Vector3();
-
-const _end$1 = new Vector3();
-
-function LineSegments(geometry, material) {
-  Line.call(this, geometry, material);
-  this.type = 'LineSegments';
-}
-
-LineSegments.prototype = Object.assign(Object.create(Line.prototype), {
-  constructor: LineSegments,
-  isLineSegments: true,
-  computeLineDistances: function () {
-    const geometry = this.geometry;
-
-    if (geometry.isBufferGeometry) {
-      // we assume non-indexed geometry
-      if (geometry.index === null) {
-        const positionAttribute = geometry.attributes.position;
-        const lineDistances = [];
-
-        for (let i = 0, l = positionAttribute.count; i < l; i += 2) {
-          _start$1.fromBufferAttribute(positionAttribute, i);
-
-          _end$1.fromBufferAttribute(positionAttribute, i + 1);
-
-          lineDistances[i] = i === 0 ? 0 : lineDistances[i - 1];
-          lineDistances[i + 1] = lineDistances[i] + _start$1.distanceTo(_end$1);
-        }
-
-        geometry.setAttribute('lineDistance', new Float32BufferAttribute(lineDistances, 1));
-      } else {
-        console.warn('THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.');
-      }
-    } else if (geometry.isGeometry) {
-      console.error('THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
-    }
-
-    return this;
-  }
-});
-
-class LineLoop extends Line {
-  constructor(geometry, material) {
-    super(geometry, material);
-    this.type = 'LineLoop';
-  }
-
-}
-
-exports.LineLoop = LineLoop;
-LineLoop.prototype.isLineLoop = true;
-/**
- * parameters = {
- *  color: <hex>,
- *  opacity: <float>,
- *  map: new THREE.Texture( <Image> ),
- *  alphaMap: new THREE.Texture( <Image> ),
- *
- *  size: <float>,
- *  sizeAttenuation: <bool>
- *
- *  morphTargets: <bool>
- * }
- */
-
-class PointsMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'PointsMaterial';
-    this.color = new Color(0xffffff);
-    this.map = null;
-    this.alphaMap = null;
-    this.size = 1;
-    this.sizeAttenuation = true;
-    this.morphTargets = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.color.copy(source.color);
-    this.map = source.map;
-    this.alphaMap = source.alphaMap;
-    this.size = source.size;
-    this.sizeAttenuation = source.sizeAttenuation;
-    this.morphTargets = source.morphTargets;
-    return this;
-  }
-
-}
-
-exports.PointsMaterial = PointsMaterial;
-PointsMaterial.prototype.isPointsMaterial = true;
-
-const _inverseMatrix$2 = new Matrix4();
-
-const _ray$2 = new Ray();
-
-const _sphere$3 = new Sphere();
-
-const _position$1 = new Vector3();
-
-function Points(geometry = new BufferGeometry(), material = new PointsMaterial()) {
-  Object3D.call(this);
-  this.type = 'Points';
-  this.geometry = geometry;
-  this.material = material;
-  this.updateMorphTargets();
-}
-
-Points.prototype = Object.assign(Object.create(Object3D.prototype), {
-  constructor: Points,
-  isPoints: true,
-  copy: function (source) {
-    Object3D.prototype.copy.call(this, source);
-    this.material = source.material;
-    this.geometry = source.geometry;
-    return this;
-  },
-  raycast: function (raycaster, intersects) {
-    const geometry = this.geometry;
-    const matrixWorld = this.matrixWorld;
-    const threshold = raycaster.params.Points.threshold; // Checking boundingSphere distance to ray
-
-    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
-
-    _sphere$3.copy(geometry.boundingSphere);
-
-    _sphere$3.applyMatrix4(matrixWorld);
-
-    _sphere$3.radius += threshold;
-    if (raycaster.ray.intersectsSphere(_sphere$3) === false) return; //
-
-    _inverseMatrix$2.copy(matrixWorld).invert();
-
-    _ray$2.copy(raycaster.ray).applyMatrix4(_inverseMatrix$2);
-
-    const localThreshold = threshold / ((this.scale.x + this.scale.y + this.scale.z) / 3);
-    const localThresholdSq = localThreshold * localThreshold;
-
-    if (geometry.isBufferGeometry) {
-      const index = geometry.index;
-      const attributes = geometry.attributes;
-      const positionAttribute = attributes.position;
-
-      if (index !== null) {
-        const indices = index.array;
-
-        for (let i = 0, il = indices.length; i < il; i++) {
-          const a = indices[i];
-
-          _position$1.fromBufferAttribute(positionAttribute, a);
-
-          testPoint(_position$1, a, localThresholdSq, matrixWorld, raycaster, intersects, this);
-        }
-      } else {
-        for (let i = 0, l = positionAttribute.count; i < l; i++) {
-          _position$1.fromBufferAttribute(positionAttribute, i);
-
-          testPoint(_position$1, i, localThresholdSq, matrixWorld, raycaster, intersects, this);
-        }
-      }
-    } else {
-      console.error('THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
-    }
-  },
-  updateMorphTargets: function () {
-    const geometry = this.geometry;
-
-    if (geometry.isBufferGeometry) {
-      const morphAttributes = geometry.morphAttributes;
-      const keys = Object.keys(morphAttributes);
-
-      if (keys.length > 0) {
-        const morphAttribute = morphAttributes[keys[0]];
-
-        if (morphAttribute !== undefined) {
-          this.morphTargetInfluences = [];
-          this.morphTargetDictionary = {};
-
-          for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
-            const name = morphAttribute[m].name || String(m);
-            this.morphTargetInfluences.push(0);
-            this.morphTargetDictionary[name] = m;
-          }
-        }
-      }
-    } else {
-      const morphTargets = geometry.morphTargets;
-
-      if (morphTargets !== undefined && morphTargets.length > 0) {
-        console.error('THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.');
-      }
-    }
-  }
-});
-
-function testPoint(point, index, localThresholdSq, matrixWorld, raycaster, intersects, object) {
-  const rayPointDistanceSq = _ray$2.distanceSqToPoint(point);
-
-  if (rayPointDistanceSq < localThresholdSq) {
-    const intersectPoint = new Vector3();
-
-    _ray$2.closestPointToPoint(point, intersectPoint);
-
-    intersectPoint.applyMatrix4(matrixWorld);
-    const distance = raycaster.ray.origin.distanceTo(intersectPoint);
-    if (distance < raycaster.near || distance > raycaster.far) return;
-    intersects.push({
-      distance: distance,
-      distanceToRay: Math.sqrt(rayPointDistanceSq),
-      point: intersectPoint,
-      index: index,
-      face: null,
-      object: object
-    });
-  }
-}
-
-class VideoTexture extends Texture {
-  constructor(video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy) {
-    super(video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
-    this.format = format !== undefined ? format : RGBFormat;
-    this.minFilter = minFilter !== undefined ? minFilter : LinearFilter;
-    this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
-    this.generateMipmaps = false;
-    const scope = this;
-
-    function updateVideo() {
-      scope.needsUpdate = true;
-      video.requestVideoFrameCallback(updateVideo);
-    }
-
-    if ('requestVideoFrameCallback' in video) {
-      video.requestVideoFrameCallback(updateVideo);
-    }
-  }
-
-  clone() {
-    return new this.constructor(this.image).copy(this);
-  }
-
-  update() {
-    const video = this.image;
-    const hasVideoFrameCallback = 'requestVideoFrameCallback' in video;
-
-    if (hasVideoFrameCallback === false && video.readyState >= video.HAVE_CURRENT_DATA) {
-      this.needsUpdate = true;
-    }
-  }
-
-}
-
-exports.VideoTexture = VideoTexture;
-VideoTexture.prototype.isVideoTexture = true;
-
-class CompressedTexture extends Texture {
-  constructor(mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding) {
-    super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding);
-    this.image = {
-      width: width,
-      height: height
-    };
-    this.mipmaps = mipmaps; // no flipping for cube textures
-    // (also flipping doesn't work for compressed textures )
-
-    this.flipY = false; // can't generate mipmaps for compressed textures
-    // mips must be embedded in DDS files
-
-    this.generateMipmaps = false;
-  }
-
-}
-
-exports.CompressedTexture = CompressedTexture;
-CompressedTexture.prototype.isCompressedTexture = true;
-
-class CanvasTexture extends Texture {
-  constructor(canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy) {
-    super(canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
-    this.needsUpdate = true;
-  }
-
-}
-
-exports.CanvasTexture = CanvasTexture;
-CanvasTexture.prototype.isCanvasTexture = true;
-
-class DepthTexture extends Texture {
-  constructor(width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format) {
-    format = format !== undefined ? format : DepthFormat;
-
-    if (format !== DepthFormat && format !== DepthStencilFormat) {
-      throw new Error('DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat');
-    }
-
-    if (type === undefined && format === DepthFormat) type = UnsignedShortType;
-    if (type === undefined && format === DepthStencilFormat) type = UnsignedInt248Type;
-    super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
-    this.image = {
-      width: width,
-      height: height
-    };
-    this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
-    this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
-    this.flipY = false;
-    this.generateMipmaps = false;
-  }
-
-}
-
-exports.DepthTexture = DepthTexture;
-DepthTexture.prototype.isDepthTexture = true;
-
-class CircleGeometry extends BufferGeometry {
-  constructor(radius = 1, segments = 8, thetaStart = 0, thetaLength = Math.PI * 2) {
-    super();
-    this.type = 'CircleGeometry';
-    this.parameters = {
-      radius: radius,
-      segments: segments,
-      thetaStart: thetaStart,
-      thetaLength: thetaLength
-    };
-    segments = Math.max(3, segments); // buffers
-
-    const indices = [];
-    const vertices = [];
-    const normals = [];
-    const uvs = []; // helper variables
-
-    const vertex = new Vector3();
-    const uv = new Vector2(); // center point
-
-    vertices.push(0, 0, 0);
-    normals.push(0, 0, 1);
-    uvs.push(0.5, 0.5);
-
-    for (let s = 0, i = 3; s <= segments; s++, i += 3) {
-      const segment = thetaStart + s / segments * thetaLength; // vertex
-
-      vertex.x = radius * Math.cos(segment);
-      vertex.y = radius * Math.sin(segment);
-      vertices.push(vertex.x, vertex.y, vertex.z); // normal
-
-      normals.push(0, 0, 1); // uvs
-
-      uv.x = (vertices[i] / radius + 1) / 2;
-      uv.y = (vertices[i + 1] / radius + 1) / 2;
-      uvs.push(uv.x, uv.y);
-    } // indices
-
-
-    for (let i = 1; i <= segments; i++) {
-      indices.push(i, i + 1, 0);
-    } // build geometry
-
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
-  }
-
-}
-
-exports.CircleGeometry = exports.CircleBufferGeometry = CircleGeometry;
-
-class CylinderGeometry extends BufferGeometry {
-  constructor(radiusTop = 1, radiusBottom = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2) {
-    super();
-    this.type = 'CylinderGeometry';
-    this.parameters = {
-      radiusTop: radiusTop,
-      radiusBottom: radiusBottom,
-      height: height,
-      radialSegments: radialSegments,
-      heightSegments: heightSegments,
-      openEnded: openEnded,
-      thetaStart: thetaStart,
-      thetaLength: thetaLength
-    };
-    const scope = this;
-    radialSegments = Math.floor(radialSegments);
-    heightSegments = Math.floor(heightSegments); // buffers
-
-    const indices = [];
-    const vertices = [];
-    const normals = [];
-    const uvs = []; // helper variables
-
-    let index = 0;
-    const indexArray = [];
-    const halfHeight = height / 2;
-    let groupStart = 0; // generate geometry
-
-    generateTorso();
-
-    if (openEnded === false) {
-      if (radiusTop > 0) generateCap(true);
-      if (radiusBottom > 0) generateCap(false);
-    } // build geometry
-
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
-
-    function generateTorso() {
-      const normal = new Vector3();
-      const vertex = new Vector3();
-      let groupCount = 0; // this will be used to calculate the normal
-
-      const slope = (radiusBottom - radiusTop) / height; // generate vertices, normals and uvs
-
-      for (let y = 0; y <= heightSegments; y++) {
-        const indexRow = [];
-        const v = y / heightSegments; // calculate the radius of the current row
-
-        const radius = v * (radiusBottom - radiusTop) + radiusTop;
-
-        for (let x = 0; x <= radialSegments; x++) {
-          const u = x / radialSegments;
-          const theta = u * thetaLength + thetaStart;
-          const sinTheta = Math.sin(theta);
-          const cosTheta = Math.cos(theta); // vertex
-
-          vertex.x = radius * sinTheta;
-          vertex.y = -v * height + halfHeight;
-          vertex.z = radius * cosTheta;
-          vertices.push(vertex.x, vertex.y, vertex.z); // normal
-
-          normal.set(sinTheta, slope, cosTheta).normalize();
-          normals.push(normal.x, normal.y, normal.z); // uv
-
-          uvs.push(u, 1 - v); // save index of vertex in respective row
-
-          indexRow.push(index++);
-        } // now save vertices of the row in our index array
-
-
-        indexArray.push(indexRow);
-      } // generate indices
-
-
-      for (let x = 0; x < radialSegments; x++) {
-        for (let y = 0; y < heightSegments; y++) {
-          // we use the index array to access the correct indices
-          const a = indexArray[y][x];
-          const b = indexArray[y + 1][x];
-          const c = indexArray[y + 1][x + 1];
-          const d = indexArray[y][x + 1]; // faces
-
-          indices.push(a, b, d);
-          indices.push(b, c, d); // update group counter
-
-          groupCount += 6;
-        }
-      } // add a group to the geometry. this will ensure multi material support
-
-
-      scope.addGroup(groupStart, groupCount, 0); // calculate new start value for groups
-
-      groupStart += groupCount;
-    }
-
-    function generateCap(top) {
-      // save the index of the first center vertex
-      const centerIndexStart = index;
-      const uv = new Vector2();
-      const vertex = new Vector3();
-      let groupCount = 0;
-      const radius = top === true ? radiusTop : radiusBottom;
-      const sign = top === true ? 1 : -1; // first we generate the center vertex data of the cap.
-      // because the geometry needs one set of uvs per face,
-      // we must generate a center vertex per face/segment
-
-      for (let x = 1; x <= radialSegments; x++) {
-        // vertex
-        vertices.push(0, halfHeight * sign, 0); // normal
-
-        normals.push(0, sign, 0); // uv
-
-        uvs.push(0.5, 0.5); // increase index
-
-        index++;
-      } // save the index of the last center vertex
-
-
-      const centerIndexEnd = index; // now we generate the surrounding vertices, normals and uvs
-
-      for (let x = 0; x <= radialSegments; x++) {
-        const u = x / radialSegments;
-        const theta = u * thetaLength + thetaStart;
-        const cosTheta = Math.cos(theta);
-        const sinTheta = Math.sin(theta); // vertex
-
-        vertex.x = radius * sinTheta;
-        vertex.y = halfHeight * sign;
-        vertex.z = radius * cosTheta;
-        vertices.push(vertex.x, vertex.y, vertex.z); // normal
-
-        normals.push(0, sign, 0); // uv
-
-        uv.x = cosTheta * 0.5 + 0.5;
-        uv.y = sinTheta * 0.5 * sign + 0.5;
-        uvs.push(uv.x, uv.y); // increase index
-
-        index++;
-      } // generate indices
-
-
-      for (let x = 0; x < radialSegments; x++) {
-        const c = centerIndexStart + x;
-        const i = centerIndexEnd + x;
-
-        if (top === true) {
-          // face top
-          indices.push(i, i + 1, c);
-        } else {
-          // face bottom
-          indices.push(i + 1, i, c);
-        }
-
-        groupCount += 3;
-      } // add a group to the geometry. this will ensure multi material support
-
-
-      scope.addGroup(groupStart, groupCount, top === true ? 1 : 2); // calculate new start value for groups
-
-      groupStart += groupCount;
-    }
-  }
-
-}
-
-exports.CylinderGeometry = exports.CylinderBufferGeometry = CylinderGeometry;
-
-class ConeGeometry extends CylinderGeometry {
-  constructor(radius = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2) {
-    super(0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength);
-    this.type = 'ConeGeometry';
-    this.parameters = {
-      radius: radius,
-      height: height,
-      radialSegments: radialSegments,
-      heightSegments: heightSegments,
-      openEnded: openEnded,
-      thetaStart: thetaStart,
-      thetaLength: thetaLength
-    };
-  }
-
-}
-
-exports.ConeGeometry = exports.ConeBufferGeometry = ConeGeometry;
-
-class PolyhedronGeometry extends BufferGeometry {
-  constructor(vertices, indices, radius = 1, detail = 0) {
-    super();
-    this.type = 'PolyhedronGeometry';
-    this.parameters = {
-      vertices: vertices,
-      indices: indices,
-      radius: radius,
-      detail: detail
-    }; // default buffer data
-
-    const vertexBuffer = [];
-    const uvBuffer = []; // the subdivision creates the vertex buffer data
-
-    subdivide(detail); // all vertices should lie on a conceptual sphere with a given radius
-
-    applyRadius(radius); // finally, create the uv data
-
-    generateUVs(); // build non-indexed geometry
-
-    this.setAttribute('position', new Float32BufferAttribute(vertexBuffer, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(vertexBuffer.slice(), 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvBuffer, 2));
-
-    if (detail === 0) {
-      this.computeVertexNormals(); // flat normals
-    } else {
-      this.normalizeNormals(); // smooth normals
-    } // helper functions
-
-
-    function subdivide(detail) {
-      const a = new Vector3();
-      const b = new Vector3();
-      const c = new Vector3(); // iterate over all faces and apply a subdivison with the given detail value
-
-      for (let i = 0; i < indices.length; i += 3) {
-        // get the vertices of the face
-        getVertexByIndex(indices[i + 0], a);
-        getVertexByIndex(indices[i + 1], b);
-        getVertexByIndex(indices[i + 2], c); // perform subdivision
-
-        subdivideFace(a, b, c, detail);
-      }
-    }
-
-    function subdivideFace(a, b, c, detail) {
-      const cols = detail + 1; // we use this multidimensional array as a data structure for creating the subdivision
-
-      const v = []; // construct all of the vertices for this subdivision
-
-      for (let i = 0; i <= cols; i++) {
-        v[i] = [];
-        const aj = a.clone().lerp(c, i / cols);
-        const bj = b.clone().lerp(c, i / cols);
-        const rows = cols - i;
-
-        for (let j = 0; j <= rows; j++) {
-          if (j === 0 && i === cols) {
-            v[i][j] = aj;
-          } else {
-            v[i][j] = aj.clone().lerp(bj, j / rows);
-          }
-        }
-      } // construct all of the faces
-
-
-      for (let i = 0; i < cols; i++) {
-        for (let j = 0; j < 2 * (cols - i) - 1; j++) {
-          const k = Math.floor(j / 2);
-
-          if (j % 2 === 0) {
-            pushVertex(v[i][k + 1]);
-            pushVertex(v[i + 1][k]);
-            pushVertex(v[i][k]);
-          } else {
-            pushVertex(v[i][k + 1]);
-            pushVertex(v[i + 1][k + 1]);
-            pushVertex(v[i + 1][k]);
-          }
-        }
-      }
-    }
-
-    function applyRadius(radius) {
-      const vertex = new Vector3(); // iterate over the entire buffer and apply the radius to each vertex
-
-      for (let i = 0; i < vertexBuffer.length; i += 3) {
-        vertex.x = vertexBuffer[i + 0];
-        vertex.y = vertexBuffer[i + 1];
-        vertex.z = vertexBuffer[i + 2];
-        vertex.normalize().multiplyScalar(radius);
-        vertexBuffer[i + 0] = vertex.x;
-        vertexBuffer[i + 1] = vertex.y;
-        vertexBuffer[i + 2] = vertex.z;
-      }
-    }
-
-    function generateUVs() {
-      const vertex = new Vector3();
-
-      for (let i = 0; i < vertexBuffer.length; i += 3) {
-        vertex.x = vertexBuffer[i + 0];
-        vertex.y = vertexBuffer[i + 1];
-        vertex.z = vertexBuffer[i + 2];
-        const u = azimuth(vertex) / 2 / Math.PI + 0.5;
-        const v = inclination(vertex) / Math.PI + 0.5;
-        uvBuffer.push(u, 1 - v);
-      }
-
-      correctUVs();
-      correctSeam();
-    }
-
-    function correctSeam() {
-      // handle case when face straddles the seam, see #3269
-      for (let i = 0; i < uvBuffer.length; i += 6) {
-        // uv data of a single face
-        const x0 = uvBuffer[i + 0];
-        const x1 = uvBuffer[i + 2];
-        const x2 = uvBuffer[i + 4];
-        const max = Math.max(x0, x1, x2);
-        const min = Math.min(x0, x1, x2); // 0.9 is somewhat arbitrary
-
-        if (max > 0.9 && min < 0.1) {
-          if (x0 < 0.2) uvBuffer[i + 0] += 1;
-          if (x1 < 0.2) uvBuffer[i + 2] += 1;
-          if (x2 < 0.2) uvBuffer[i + 4] += 1;
-        }
-      }
-    }
-
-    function pushVertex(vertex) {
-      vertexBuffer.push(vertex.x, vertex.y, vertex.z);
-    }
-
-    function getVertexByIndex(index, vertex) {
-      const stride = index * 3;
-      vertex.x = vertices[stride + 0];
-      vertex.y = vertices[stride + 1];
-      vertex.z = vertices[stride + 2];
-    }
-
-    function correctUVs() {
-      const a = new Vector3();
-      const b = new Vector3();
-      const c = new Vector3();
-      const centroid = new Vector3();
-      const uvA = new Vector2();
-      const uvB = new Vector2();
-      const uvC = new Vector2();
-
-      for (let i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6) {
-        a.set(vertexBuffer[i + 0], vertexBuffer[i + 1], vertexBuffer[i + 2]);
-        b.set(vertexBuffer[i + 3], vertexBuffer[i + 4], vertexBuffer[i + 5]);
-        c.set(vertexBuffer[i + 6], vertexBuffer[i + 7], vertexBuffer[i + 8]);
-        uvA.set(uvBuffer[j + 0], uvBuffer[j + 1]);
-        uvB.set(uvBuffer[j + 2], uvBuffer[j + 3]);
-        uvC.set(uvBuffer[j + 4], uvBuffer[j + 5]);
-        centroid.copy(a).add(b).add(c).divideScalar(3);
-        const azi = azimuth(centroid);
-        correctUV(uvA, j + 0, a, azi);
-        correctUV(uvB, j + 2, b, azi);
-        correctUV(uvC, j + 4, c, azi);
-      }
-    }
-
-    function correctUV(uv, stride, vector, azimuth) {
-      if (azimuth < 0 && uv.x === 1) {
-        uvBuffer[stride] = uv.x - 1;
-      }
-
-      if (vector.x === 0 && vector.z === 0) {
-        uvBuffer[stride] = azimuth / 2 / Math.PI + 0.5;
-      }
-    } // Angle around the Y axis, counter-clockwise when looking from above.
-
-
-    function azimuth(vector) {
-      return Math.atan2(vector.z, -vector.x);
-    } // Angle above the XZ plane.
-
-
-    function inclination(vector) {
-      return Math.atan2(-vector.y, Math.sqrt(vector.x * vector.x + vector.z * vector.z));
-    }
-  }
-
-}
-
-exports.PolyhedronGeometry = exports.PolyhedronBufferGeometry = PolyhedronGeometry;
-
-class DodecahedronGeometry extends PolyhedronGeometry {
-  constructor(radius = 1, detail = 0) {
-    const t = (1 + Math.sqrt(5)) / 2;
-    const r = 1 / t;
-    const vertices = [// (±1, ±1, ±1)
-    -1, -1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, 1, 1, -1, 1, 1, 1, // (0, ±1/φ, ±φ)
-    0, -r, -t, 0, -r, t, 0, r, -t, 0, r, t, // (±1/φ, ±φ, 0)
-    -r, -t, 0, -r, t, 0, r, -t, 0, r, t, 0, // (±φ, 0, ±1/φ)
-    -t, 0, -r, t, 0, -r, -t, 0, r, t, 0, r];
-    const indices = [3, 11, 7, 3, 7, 15, 3, 15, 13, 7, 19, 17, 7, 17, 6, 7, 6, 15, 17, 4, 8, 17, 8, 10, 17, 10, 6, 8, 0, 16, 8, 16, 2, 8, 2, 10, 0, 12, 1, 0, 1, 18, 0, 18, 16, 6, 10, 2, 6, 2, 13, 6, 13, 15, 2, 16, 18, 2, 18, 3, 2, 3, 13, 18, 1, 9, 18, 9, 11, 18, 11, 3, 4, 14, 12, 4, 12, 0, 4, 0, 8, 11, 9, 5, 11, 5, 19, 11, 19, 7, 19, 5, 14, 19, 14, 4, 19, 4, 17, 1, 12, 14, 1, 14, 5, 1, 5, 9];
-    super(vertices, indices, radius, detail);
-    this.type = 'DodecahedronGeometry';
-    this.parameters = {
-      radius: radius,
-      detail: detail
-    };
-  }
-
-}
-
-exports.DodecahedronGeometry = exports.DodecahedronBufferGeometry = DodecahedronGeometry;
-
-const _v0$2 = new Vector3();
-
-const _v1$5 = new Vector3();
-
-const _normal$1 = new Vector3();
-
-const _triangle = new Triangle();
-
-class EdgesGeometry extends BufferGeometry {
-  constructor(geometry, thresholdAngle) {
-    super();
-    this.type = 'EdgesGeometry';
-    this.parameters = {
-      thresholdAngle: thresholdAngle
-    };
-    thresholdAngle = thresholdAngle !== undefined ? thresholdAngle : 1;
-
-    if (geometry.isGeometry === true) {
-      console.error('THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
-      return;
-    }
-
-    const precisionPoints = 4;
-    const precision = Math.pow(10, precisionPoints);
-    const thresholdDot = Math.cos(MathUtils.DEG2RAD * thresholdAngle);
-    const indexAttr = geometry.getIndex();
-    const positionAttr = geometry.getAttribute('position');
-    const indexCount = indexAttr ? indexAttr.count : positionAttr.count;
-    const indexArr = [0, 0, 0];
-    const vertKeys = ['a', 'b', 'c'];
-    const hashes = new Array(3);
-    const edgeData = {};
-    const vertices = [];
-
-    for (let i = 0; i < indexCount; i += 3) {
-      if (indexAttr) {
-        indexArr[0] = indexAttr.getX(i);
-        indexArr[1] = indexAttr.getX(i + 1);
-        indexArr[2] = indexAttr.getX(i + 2);
-      } else {
-        indexArr[0] = i;
-        indexArr[1] = i + 1;
-        indexArr[2] = i + 2;
-      }
-
-      const {
-        a,
-        b,
-        c
-      } = _triangle;
-      a.fromBufferAttribute(positionAttr, indexArr[0]);
-      b.fromBufferAttribute(positionAttr, indexArr[1]);
-      c.fromBufferAttribute(positionAttr, indexArr[2]);
-
-      _triangle.getNormal(_normal$1); // create hashes for the edge from the vertices
-
-
-      hashes[0] = `${Math.round(a.x * precision)},${Math.round(a.y * precision)},${Math.round(a.z * precision)}`;
-      hashes[1] = `${Math.round(b.x * precision)},${Math.round(b.y * precision)},${Math.round(b.z * precision)}`;
-      hashes[2] = `${Math.round(c.x * precision)},${Math.round(c.y * precision)},${Math.round(c.z * precision)}`; // skip degenerate triangles
-
-      if (hashes[0] === hashes[1] || hashes[1] === hashes[2] || hashes[2] === hashes[0]) {
-        continue;
-      } // iterate over every edge
-
-
-      for (let j = 0; j < 3; j++) {
-        // get the first and next vertex making up the edge
-        const jNext = (j + 1) % 3;
-        const vecHash0 = hashes[j];
-        const vecHash1 = hashes[jNext];
-        const v0 = _triangle[vertKeys[j]];
-        const v1 = _triangle[vertKeys[jNext]];
-        const hash = `${vecHash0}_${vecHash1}`;
-        const reverseHash = `${vecHash1}_${vecHash0}`;
-
-        if (reverseHash in edgeData && edgeData[reverseHash]) {
-          // if we found a sibling edge add it into the vertex array if
-          // it meets the angle threshold and delete the edge from the map.
-          if (_normal$1.dot(edgeData[reverseHash].normal) <= thresholdDot) {
-            vertices.push(v0.x, v0.y, v0.z);
-            vertices.push(v1.x, v1.y, v1.z);
-          }
-
-          edgeData[reverseHash] = null;
-        } else if (!(hash in edgeData)) {
-          // if we've already got an edge here then skip adding a new one
-          edgeData[hash] = {
-            index0: indexArr[j],
-            index1: indexArr[jNext],
-            normal: _normal$1.clone()
-          };
-        }
-      }
-    } // iterate over all remaining, unmatched edges and add them to the vertex array
-
-
-    for (const key in edgeData) {
-      if (edgeData[key]) {
-        const {
-          index0,
-          index1
-        } = edgeData[key];
-
-        _v0$2.fromBufferAttribute(positionAttr, index0);
-
-        _v1$5.fromBufferAttribute(positionAttr, index1);
-
-        vertices.push(_v0$2.x, _v0$2.y, _v0$2.z);
-        vertices.push(_v1$5.x, _v1$5.y, _v1$5.z);
-      }
-    }
-
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-  }
-
-}
-/**
- * Port from https://github.com/mapbox/earcut (v2.2.2)
- */
-
-
-exports.EdgesGeometry = EdgesGeometry;
-const Earcut = {
-  triangulate: function (data, holeIndices, dim) {
-    dim = dim || 2;
-    const hasHoles = holeIndices && holeIndices.length;
-    const outerLen = hasHoles ? holeIndices[0] * dim : data.length;
-    let outerNode = linkedList(data, 0, outerLen, dim, true);
-    const triangles = [];
-    if (!outerNode || outerNode.next === outerNode.prev) return triangles;
-    let minX, minY, maxX, maxY, x, y, invSize;
-    if (hasHoles) outerNode = eliminateHoles(data, holeIndices, outerNode, dim); // if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
-
-    if (data.length > 80 * dim) {
-      minX = maxX = data[0];
-      minY = maxY = data[1];
-
-      for (let i = dim; i < outerLen; i += dim) {
-        x = data[i];
-        y = data[i + 1];
-        if (x < minX) minX = x;
-        if (y < minY) minY = y;
-        if (x > maxX) maxX = x;
-        if (y > maxY) maxY = y;
-      } // minX, minY and invSize are later used to transform coords into integers for z-order calculation
-
-
-      invSize = Math.max(maxX - minX, maxY - minY);
-      invSize = invSize !== 0 ? 1 / invSize : 0;
-    }
-
-    earcutLinked(outerNode, triangles, dim, minX, minY, invSize);
-    return triangles;
-  }
-}; // create a circular doubly linked list from polygon points in the specified winding order
-
-function linkedList(data, start, end, dim, clockwise) {
-  let i, last;
-
-  if (clockwise === signedArea(data, start, end, dim) > 0) {
-    for (i = start; i < end; i += dim) last = insertNode(i, data[i], data[i + 1], last);
-  } else {
-    for (i = end - dim; i >= start; i -= dim) last = insertNode(i, data[i], data[i + 1], last);
-  }
-
-  if (last && equals(last, last.next)) {
-    removeNode(last);
-    last = last.next;
-  }
-
-  return last;
-} // eliminate colinear or duplicate points
-
-
-function filterPoints(start, end) {
-  if (!start) return start;
-  if (!end) end = start;
-  let p = start,
-      again;
-
-  do {
-    again = false;
-
-    if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) {
-      removeNode(p);
-      p = end = p.prev;
-      if (p === p.next) break;
-      again = true;
-    } else {
-      p = p.next;
-    }
-  } while (again || p !== end);
-
-  return end;
-} // main ear slicing loop which triangulates a polygon (given as a linked list)
-
-
-function earcutLinked(ear, triangles, dim, minX, minY, invSize, pass) {
-  if (!ear) return; // interlink polygon nodes in z-order
-
-  if (!pass && invSize) indexCurve(ear, minX, minY, invSize);
-  let stop = ear,
-      prev,
-      next; // iterate through ears, slicing them one by one
-
-  while (ear.prev !== ear.next) {
-    prev = ear.prev;
-    next = ear.next;
-
-    if (invSize ? isEarHashed(ear, minX, minY, invSize) : isEar(ear)) {
-      // cut off the triangle
-      triangles.push(prev.i / dim);
-      triangles.push(ear.i / dim);
-      triangles.push(next.i / dim);
-      removeNode(ear); // skipping the next vertex leads to less sliver triangles
-
-      ear = next.next;
-      stop = next.next;
-      continue;
-    }
-
-    ear = next; // if we looped through the whole remaining polygon and can't find any more ears
-
-    if (ear === stop) {
-      // try filtering points and slicing again
-      if (!pass) {
-        earcutLinked(filterPoints(ear), triangles, dim, minX, minY, invSize, 1); // if this didn't work, try curing all small self-intersections locally
-      } else if (pass === 1) {
-        ear = cureLocalIntersections(filterPoints(ear), triangles, dim);
-        earcutLinked(ear, triangles, dim, minX, minY, invSize, 2); // as a last resort, try splitting the remaining polygon into two
-      } else if (pass === 2) {
-        splitEarcut(ear, triangles, dim, minX, minY, invSize);
-      }
-
-      break;
-    }
-  }
-} // check whether a polygon node forms a valid ear with adjacent nodes
-
-
-function isEar(ear) {
-  const a = ear.prev,
-        b = ear,
-        c = ear.next;
-  if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
-  // now make sure we don't have other points inside the potential ear
-
-  let p = ear.next.next;
-
-  while (p !== ear.prev) {
-    if (pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
-    p = p.next;
-  }
-
-  return true;
-}
-
-function isEarHashed(ear, minX, minY, invSize) {
-  const a = ear.prev,
-        b = ear,
-        c = ear.next;
-  if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
-  // triangle bbox; min & max are calculated like this for speed
-
-  const minTX = a.x < b.x ? a.x < c.x ? a.x : c.x : b.x < c.x ? b.x : c.x,
-        minTY = a.y < b.y ? a.y < c.y ? a.y : c.y : b.y < c.y ? b.y : c.y,
-        maxTX = a.x > b.x ? a.x > c.x ? a.x : c.x : b.x > c.x ? b.x : c.x,
-        maxTY = a.y > b.y ? a.y > c.y ? a.y : c.y : b.y > c.y ? b.y : c.y; // z-order range for the current triangle bbox;
-
-  const minZ = zOrder(minTX, minTY, minX, minY, invSize),
-        maxZ = zOrder(maxTX, maxTY, minX, minY, invSize);
-  let p = ear.prevZ,
-      n = ear.nextZ; // look for points inside the triangle in both directions
-
-  while (p && p.z >= minZ && n && n.z <= maxZ) {
-    if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
-    p = p.prevZ;
-    if (n !== ear.prev && n !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && area(n.prev, n, n.next) >= 0) return false;
-    n = n.nextZ;
-  } // look for remaining points in decreasing z-order
-
-
-  while (p && p.z >= minZ) {
-    if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
-    p = p.prevZ;
-  } // look for remaining points in increasing z-order
-
-
-  while (n && n.z <= maxZ) {
-    if (n !== ear.prev && n !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && area(n.prev, n, n.next) >= 0) return false;
-    n = n.nextZ;
-  }
-
-  return true;
-} // go through all polygon nodes and cure small local self-intersections
-
-
-function cureLocalIntersections(start, triangles, dim) {
-  let p = start;
-
-  do {
-    const a = p.prev,
-          b = p.next.next;
-
-    if (!equals(a, b) && intersects(a, p, p.next, b) && locallyInside(a, b) && locallyInside(b, a)) {
-      triangles.push(a.i / dim);
-      triangles.push(p.i / dim);
-      triangles.push(b.i / dim); // remove two nodes involved
-
-      removeNode(p);
-      removeNode(p.next);
-      p = start = b;
-    }
-
-    p = p.next;
-  } while (p !== start);
-
-  return filterPoints(p);
-} // try splitting polygon into two and triangulate them independently
-
-
-function splitEarcut(start, triangles, dim, minX, minY, invSize) {
-  // look for a valid diagonal that divides the polygon into two
-  let a = start;
-
-  do {
-    let b = a.next.next;
-
-    while (b !== a.prev) {
-      if (a.i !== b.i && isValidDiagonal(a, b)) {
-        // split the polygon in two by the diagonal
-        let c = splitPolygon(a, b); // filter colinear points around the cuts
-
-        a = filterPoints(a, a.next);
-        c = filterPoints(c, c.next); // run earcut on each half
-
-        earcutLinked(a, triangles, dim, minX, minY, invSize);
-        earcutLinked(c, triangles, dim, minX, minY, invSize);
-        return;
-      }
-
-      b = b.next;
-    }
-
-    a = a.next;
-  } while (a !== start);
-} // link every hole into the outer loop, producing a single-ring polygon without holes
-
-
-function eliminateHoles(data, holeIndices, outerNode, dim) {
-  const queue = [];
-  let i, len, start, end, list;
-
-  for (i = 0, len = holeIndices.length; i < len; i++) {
-    start = holeIndices[i] * dim;
-    end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
-    list = linkedList(data, start, end, dim, false);
-    if (list === list.next) list.steiner = true;
-    queue.push(getLeftmost(list));
-  }
-
-  queue.sort(compareX); // process holes from left to right
-
-  for (i = 0; i < queue.length; i++) {
-    eliminateHole(queue[i], outerNode);
-    outerNode = filterPoints(outerNode, outerNode.next);
-  }
-
-  return outerNode;
-}
-
-function compareX(a, b) {
-  return a.x - b.x;
-} // find a bridge between vertices that connects hole with an outer ring and and link it
-
-
-function eliminateHole(hole, outerNode) {
-  outerNode = findHoleBridge(hole, outerNode);
-
-  if (outerNode) {
-    const b = splitPolygon(outerNode, hole); // filter collinear points around the cuts
-
-    filterPoints(outerNode, outerNode.next);
-    filterPoints(b, b.next);
-  }
-} // David Eberly's algorithm for finding a bridge between hole and outer polygon
-
-
-function findHoleBridge(hole, outerNode) {
-  let p = outerNode;
-  const hx = hole.x;
-  const hy = hole.y;
-  let qx = -Infinity,
-      m; // find a segment intersected by a ray from the hole's leftmost point to the left;
-  // segment's endpoint with lesser x will be potential connection point
-
-  do {
-    if (hy <= p.y && hy >= p.next.y && p.next.y !== p.y) {
-      const x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y);
-
-      if (x <= hx && x > qx) {
-        qx = x;
-
-        if (x === hx) {
-          if (hy === p.y) return p;
-          if (hy === p.next.y) return p.next;
-        }
-
-        m = p.x < p.next.x ? p : p.next;
-      }
-    }
-
-    p = p.next;
-  } while (p !== outerNode);
-
-  if (!m) return null;
-  if (hx === qx) return m; // hole touches outer segment; pick leftmost endpoint
-  // look for points inside the triangle of hole point, segment intersection and endpoint;
-  // if there are no points found, we have a valid connection;
-  // otherwise choose the point of the minimum angle with the ray as connection point
-
-  const stop = m,
-        mx = m.x,
-        my = m.y;
-  let tanMin = Infinity,
-      tan;
-  p = m;
-
-  do {
-    if (hx >= p.x && p.x >= mx && hx !== p.x && pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) {
-      tan = Math.abs(hy - p.y) / (hx - p.x); // tangential
-
-      if (locallyInside(p, hole) && (tan < tanMin || tan === tanMin && (p.x > m.x || p.x === m.x && sectorContainsSector(m, p)))) {
-        m = p;
-        tanMin = tan;
-      }
-    }
-
-    p = p.next;
-  } while (p !== stop);
-
-  return m;
-} // whether sector in vertex m contains sector in vertex p in the same coordinates
-
-
-function sectorContainsSector(m, p) {
-  return area(m.prev, m, p.prev) < 0 && area(p.next, m, m.next) < 0;
-} // interlink polygon nodes in z-order
-
-
-function indexCurve(start, minX, minY, invSize) {
-  let p = start;
-
-  do {
-    if (p.z === null) p.z = zOrder(p.x, p.y, minX, minY, invSize);
-    p.prevZ = p.prev;
-    p.nextZ = p.next;
-    p = p.next;
-  } while (p !== start);
-
-  p.prevZ.nextZ = null;
-  p.prevZ = null;
-  sortLinked(p);
-} // Simon Tatham's linked list merge sort algorithm
-// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
-
-
-function sortLinked(list) {
-  let i,
-      p,
-      q,
-      e,
-      tail,
-      numMerges,
-      pSize,
-      qSize,
-      inSize = 1;
-
-  do {
-    p = list;
-    list = null;
-    tail = null;
-    numMerges = 0;
-
-    while (p) {
-      numMerges++;
-      q = p;
-      pSize = 0;
-
-      for (i = 0; i < inSize; i++) {
-        pSize++;
-        q = q.nextZ;
-        if (!q) break;
-      }
-
-      qSize = inSize;
-
-      while (pSize > 0 || qSize > 0 && q) {
-        if (pSize !== 0 && (qSize === 0 || !q || p.z <= q.z)) {
-          e = p;
-          p = p.nextZ;
-          pSize--;
-        } else {
-          e = q;
-          q = q.nextZ;
-          qSize--;
-        }
-
-        if (tail) tail.nextZ = e;else list = e;
-        e.prevZ = tail;
-        tail = e;
-      }
-
-      p = q;
-    }
-
-    tail.nextZ = null;
-    inSize *= 2;
-  } while (numMerges > 1);
-
-  return list;
-} // z-order of a point given coords and inverse of the longer side of data bbox
-
-
-function zOrder(x, y, minX, minY, invSize) {
-  // coords are transformed into non-negative 15-bit integer range
-  x = 32767 * (x - minX) * invSize;
-  y = 32767 * (y - minY) * invSize;
-  x = (x | x << 8) & 0x00FF00FF;
-  x = (x | x << 4) & 0x0F0F0F0F;
-  x = (x | x << 2) & 0x33333333;
-  x = (x | x << 1) & 0x55555555;
-  y = (y | y << 8) & 0x00FF00FF;
-  y = (y | y << 4) & 0x0F0F0F0F;
-  y = (y | y << 2) & 0x33333333;
-  y = (y | y << 1) & 0x55555555;
-  return x | y << 1;
-} // find the leftmost node of a polygon ring
-
-
-function getLeftmost(start) {
-  let p = start,
-      leftmost = start;
-
-  do {
-    if (p.x < leftmost.x || p.x === leftmost.x && p.y < leftmost.y) leftmost = p;
-    p = p.next;
-  } while (p !== start);
-
-  return leftmost;
-} // check if a point lies within a convex triangle
-
-
-function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) {
-  return (cx - px) * (ay - py) - (ax - px) * (cy - py) >= 0 && (ax - px) * (by - py) - (bx - px) * (ay - py) >= 0 && (bx - px) * (cy - py) - (cx - px) * (by - py) >= 0;
-} // check if a diagonal between two polygon nodes is valid (lies in polygon interior)
-
-
-function isValidDiagonal(a, b) {
-  return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && ( // dones't intersect other edges
-  locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b) && ( // locally visible
-  area(a.prev, a, b.prev) || area(a, b.prev, b)) || // does not create opposite-facing sectors
-  equals(a, b) && area(a.prev, a, a.next) > 0 && area(b.prev, b, b.next) > 0); // special zero-length case
-} // signed area of a triangle
-
-
-function area(p, q, r) {
-  return (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y);
-} // check if two points are equal
-
-
-function equals(p1, p2) {
-  return p1.x === p2.x && p1.y === p2.y;
-} // check if two segments intersect
-
-
-function intersects(p1, q1, p2, q2) {
-  const o1 = sign(area(p1, q1, p2));
-  const o2 = sign(area(p1, q1, q2));
-  const o3 = sign(area(p2, q2, p1));
-  const o4 = sign(area(p2, q2, q1));
-  if (o1 !== o2 && o3 !== o4) return true; // general case
-
-  if (o1 === 0 && onSegment(p1, p2, q1)) return true; // p1, q1 and p2 are collinear and p2 lies on p1q1
-
-  if (o2 === 0 && onSegment(p1, q2, q1)) return true; // p1, q1 and q2 are collinear and q2 lies on p1q1
-
-  if (o3 === 0 && onSegment(p2, p1, q2)) return true; // p2, q2 and p1 are collinear and p1 lies on p2q2
-
-  if (o4 === 0 && onSegment(p2, q1, q2)) return true; // p2, q2 and q1 are collinear and q1 lies on p2q2
-
-  return false;
-} // for collinear points p, q, r, check if point q lies on segment pr
-
-
-function onSegment(p, q, r) {
-  return q.x <= Math.max(p.x, r.x) && q.x >= Math.min(p.x, r.x) && q.y <= Math.max(p.y, r.y) && q.y >= Math.min(p.y, r.y);
-}
-
-function sign(num) {
-  return num > 0 ? 1 : num < 0 ? -1 : 0;
-} // check if a polygon diagonal intersects any polygon segments
-
-
-function intersectsPolygon(a, b) {
-  let p = a;
-
-  do {
-    if (p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i && intersects(p, p.next, a, b)) return true;
-    p = p.next;
-  } while (p !== a);
-
-  return false;
-} // check if a polygon diagonal is locally inside the polygon
-
-
-function locallyInside(a, b) {
-  return area(a.prev, a, a.next) < 0 ? area(a, b, a.next) >= 0 && area(a, a.prev, b) >= 0 : area(a, b, a.prev) < 0 || area(a, a.next, b) < 0;
-} // check if the middle point of a polygon diagonal is inside the polygon
-
-
-function middleInside(a, b) {
-  let p = a,
-      inside = false;
-  const px = (a.x + b.x) / 2,
-        py = (a.y + b.y) / 2;
-
-  do {
-    if (p.y > py !== p.next.y > py && p.next.y !== p.y && px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x) inside = !inside;
-    p = p.next;
-  } while (p !== a);
-
-  return inside;
-} // link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
-// if one belongs to the outer ring and another to a hole, it merges it into a single ring
-
-
-function splitPolygon(a, b) {
-  const a2 = new Node(a.i, a.x, a.y),
-        b2 = new Node(b.i, b.x, b.y),
-        an = a.next,
-        bp = b.prev;
-  a.next = b;
-  b.prev = a;
-  a2.next = an;
-  an.prev = a2;
-  b2.next = a2;
-  a2.prev = b2;
-  bp.next = b2;
-  b2.prev = bp;
-  return b2;
-} // create a node and optionally link it with previous one (in a circular doubly linked list)
-
-
-function insertNode(i, x, y, last) {
-  const p = new Node(i, x, y);
-
-  if (!last) {
-    p.prev = p;
-    p.next = p;
-  } else {
-    p.next = last.next;
-    p.prev = last;
-    last.next.prev = p;
-    last.next = p;
-  }
-
-  return p;
-}
-
-function removeNode(p) {
-  p.next.prev = p.prev;
-  p.prev.next = p.next;
-  if (p.prevZ) p.prevZ.nextZ = p.nextZ;
-  if (p.nextZ) p.nextZ.prevZ = p.prevZ;
-}
-
-function Node(i, x, y) {
-  // vertex index in coordinates array
-  this.i = i; // vertex coordinates
-
-  this.x = x;
-  this.y = y; // previous and next vertex nodes in a polygon ring
-
-  this.prev = null;
-  this.next = null; // z-order curve value
-
-  this.z = null; // previous and next nodes in z-order
-
-  this.prevZ = null;
-  this.nextZ = null; // indicates whether this is a steiner point
-
-  this.steiner = false;
-}
-
-function signedArea(data, start, end, dim) {
-  let sum = 0;
-
-  for (let i = start, j = end - dim; i < end; i += dim) {
-    sum += (data[j] - data[i]) * (data[i + 1] + data[j + 1]);
-    j = i;
-  }
-
-  return sum;
-}
-
-const ShapeUtils = {
-  // calculate area of the contour polygon
-  area: function (contour) {
-    const n = contour.length;
-    let a = 0.0;
-
-    for (let p = n - 1, q = 0; q < n; p = q++) {
-      a += contour[p].x * contour[q].y - contour[q].x * contour[p].y;
-    }
-
-    return a * 0.5;
-  },
-  isClockWise: function (pts) {
-    return ShapeUtils.area(pts) < 0;
-  },
-  triangulateShape: function (contour, holes) {
-    const vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]
-
-    const holeIndices = []; // array of hole indices
-
-    const faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]
-
-    removeDupEndPts(contour);
-    addContour(vertices, contour); //
-
-    let holeIndex = contour.length;
-    holes.forEach(removeDupEndPts);
-
-    for (let i = 0; i < holes.length; i++) {
-      holeIndices.push(holeIndex);
-      holeIndex += holes[i].length;
-      addContour(vertices, holes[i]);
-    } //
-
-
-    const triangles = Earcut.triangulate(vertices, holeIndices); //
-
-    for (let i = 0; i < triangles.length; i += 3) {
-      faces.push(triangles.slice(i, i + 3));
-    }
-
-    return faces;
-  }
-};
-exports.ShapeUtils = ShapeUtils;
-
-function removeDupEndPts(points) {
-  const l = points.length;
-
-  if (l > 2 && points[l - 1].equals(points[0])) {
-    points.pop();
-  }
-}
-
-function addContour(vertices, contour) {
-  for (let i = 0; i < contour.length; i++) {
-    vertices.push(contour[i].x);
-    vertices.push(contour[i].y);
-  }
-}
-/**
- * Creates extruded geometry from a path shape.
- *
- * parameters = {
- *
- *  curveSegments: <int>, // number of points on the curves
- *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
- *  depth: <float>, // Depth to extrude the shape
- *
- *  bevelEnabled: <bool>, // turn on bevel
- *  bevelThickness: <float>, // how deep into the original shape bevel goes
- *  bevelSize: <float>, // how far from shape outline (including bevelOffset) is bevel
- *  bevelOffset: <float>, // how far from shape outline does bevel start
- *  bevelSegments: <int>, // number of bevel layers
- *
- *  extrudePath: <THREE.Curve> // curve to extrude shape along
- *
- *  UVGenerator: <Object> // object that provides UV generator functions
- *
- * }
- */
-
-
-class ExtrudeGeometry extends BufferGeometry {
-  constructor(shapes, options) {
-    super();
-    this.type = 'ExtrudeGeometry';
-    this.parameters = {
-      shapes: shapes,
-      options: options
-    };
-    shapes = Array.isArray(shapes) ? shapes : [shapes];
-    const scope = this;
-    const verticesArray = [];
-    const uvArray = [];
-
-    for (let i = 0, l = shapes.length; i < l; i++) {
-      const shape = shapes[i];
-      addShape(shape);
-    } // build geometry
-
-
-    this.setAttribute('position', new Float32BufferAttribute(verticesArray, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvArray, 2));
-    this.computeVertexNormals(); // functions
-
-    function addShape(shape) {
-      const placeholder = []; // options
-
-      const curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
-      const steps = options.steps !== undefined ? options.steps : 1;
-      let depth = options.depth !== undefined ? options.depth : 100;
-      let bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;
-      let bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6;
-      let bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2;
-      let bevelOffset = options.bevelOffset !== undefined ? options.bevelOffset : 0;
-      let bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;
-      const extrudePath = options.extrudePath;
-      const uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator; // deprecated options
-
-      if (options.amount !== undefined) {
-        console.warn('THREE.ExtrudeBufferGeometry: amount has been renamed to depth.');
-        depth = options.amount;
-      } //
-
-
-      let extrudePts,
-          extrudeByPath = false;
-      let splineTube, binormal, normal, position2;
-
-      if (extrudePath) {
-        extrudePts = extrudePath.getSpacedPoints(steps);
-        extrudeByPath = true;
-        bevelEnabled = false; // bevels not supported for path extrusion
-        // SETUP TNB variables
-        // TODO1 - have a .isClosed in spline?
-
-        splineTube = extrudePath.computeFrenetFrames(steps, false); // console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);
-
-        binormal = new Vector3();
-        normal = new Vector3();
-        position2 = new Vector3();
-      } // Safeguards if bevels are not enabled
-
-
-      if (!bevelEnabled) {
-        bevelSegments = 0;
-        bevelThickness = 0;
-        bevelSize = 0;
-        bevelOffset = 0;
-      } // Variables initialization
-
-
-      const shapePoints = shape.extractPoints(curveSegments);
-      let vertices = shapePoints.shape;
-      const holes = shapePoints.holes;
-      const reverse = !ShapeUtils.isClockWise(vertices);
-
-      if (reverse) {
-        vertices = vertices.reverse(); // Maybe we should also check if holes are in the opposite direction, just to be safe ...
-
-        for (let h = 0, hl = holes.length; h < hl; h++) {
-          const ahole = holes[h];
-
-          if (ShapeUtils.isClockWise(ahole)) {
-            holes[h] = ahole.reverse();
-          }
-        }
-      }
-
-      const faces = ShapeUtils.triangulateShape(vertices, holes);
-      /* Vertices */
-
-      const contour = vertices; // vertices has all points but contour has only points of circumference
-
-      for (let h = 0, hl = holes.length; h < hl; h++) {
-        const ahole = holes[h];
-        vertices = vertices.concat(ahole);
-      }
-
-      function scalePt2(pt, vec, size) {
-        if (!vec) console.error('THREE.ExtrudeGeometry: vec does not exist');
-        return vec.clone().multiplyScalar(size).add(pt);
-      }
-
-      const vlen = vertices.length,
-            flen = faces.length; // Find directions for point movement
-
-      function getBevelVec(inPt, inPrev, inNext) {
-        // computes for inPt the corresponding point inPt' on a new contour
-        //   shifted by 1 unit (length of normalized vector) to the left
-        // if we walk along contour clockwise, this new contour is outside the old one
-        //
-        // inPt' is the intersection of the two lines parallel to the two
-        //  adjacent edges of inPt at a distance of 1 unit on the left side.
-        let v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt
-        // good reading for geometry algorithms (here: line-line intersection)
-        // http://geomalgorithms.com/a05-_intersect-1.html
-
-        const v_prev_x = inPt.x - inPrev.x,
-              v_prev_y = inPt.y - inPrev.y;
-        const v_next_x = inNext.x - inPt.x,
-              v_next_y = inNext.y - inPt.y;
-        const v_prev_lensq = v_prev_x * v_prev_x + v_prev_y * v_prev_y; // check for collinear edges
-
-        const collinear0 = v_prev_x * v_next_y - v_prev_y * v_next_x;
-
-        if (Math.abs(collinear0) > Number.EPSILON) {
-          // not collinear
-          // length of vectors for normalizing
-          const v_prev_len = Math.sqrt(v_prev_lensq);
-          const v_next_len = Math.sqrt(v_next_x * v_next_x + v_next_y * v_next_y); // shift adjacent points by unit vectors to the left
-
-          const ptPrevShift_x = inPrev.x - v_prev_y / v_prev_len;
-          const ptPrevShift_y = inPrev.y + v_prev_x / v_prev_len;
-          const ptNextShift_x = inNext.x - v_next_y / v_next_len;
-          const ptNextShift_y = inNext.y + v_next_x / v_next_len; // scaling factor for v_prev to intersection point
-
-          const sf = ((ptNextShift_x - ptPrevShift_x) * v_next_y - (ptNextShift_y - ptPrevShift_y) * v_next_x) / (v_prev_x * v_next_y - v_prev_y * v_next_x); // vector from inPt to intersection point
-
-          v_trans_x = ptPrevShift_x + v_prev_x * sf - inPt.x;
-          v_trans_y = ptPrevShift_y + v_prev_y * sf - inPt.y; // Don't normalize!, otherwise sharp corners become ugly
-          //  but prevent crazy spikes
-
-          const v_trans_lensq = v_trans_x * v_trans_x + v_trans_y * v_trans_y;
-
-          if (v_trans_lensq <= 2) {
-            return new Vector2(v_trans_x, v_trans_y);
-          } else {
-            shrink_by = Math.sqrt(v_trans_lensq / 2);
-          }
-        } else {
-          // handle special case of collinear edges
-          let direction_eq = false; // assumes: opposite
-
-          if (v_prev_x > Number.EPSILON) {
-            if (v_next_x > Number.EPSILON) {
-              direction_eq = true;
-            }
-          } else {
-            if (v_prev_x < -Number.EPSILON) {
-              if (v_next_x < -Number.EPSILON) {
-                direction_eq = true;
-              }
-            } else {
-              if (Math.sign(v_prev_y) === Math.sign(v_next_y)) {
-                direction_eq = true;
-              }
-            }
-          }
-
-          if (direction_eq) {
-            // console.log("Warning: lines are a straight sequence");
-            v_trans_x = -v_prev_y;
-            v_trans_y = v_prev_x;
-            shrink_by = Math.sqrt(v_prev_lensq);
-          } else {
-            // console.log("Warning: lines are a straight spike");
-            v_trans_x = v_prev_x;
-            v_trans_y = v_prev_y;
-            shrink_by = Math.sqrt(v_prev_lensq / 2);
-          }
-        }
-
-        return new Vector2(v_trans_x / shrink_by, v_trans_y / shrink_by);
-      }
-
-      const contourMovements = [];
-
-      for (let i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i++, j++, k++) {
-        if (j === il) j = 0;
-        if (k === il) k = 0; //  (j)---(i)---(k)
-        // console.log('i,j,k', i, j , k)
-
-        contourMovements[i] = getBevelVec(contour[i], contour[j], contour[k]);
-      }
-
-      const holesMovements = [];
-      let oneHoleMovements,
-          verticesMovements = contourMovements.concat();
-
-      for (let h = 0, hl = holes.length; h < hl; h++) {
-        const ahole = holes[h];
-        oneHoleMovements = [];
-
-        for (let i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i++, j++, k++) {
-          if (j === il) j = 0;
-          if (k === il) k = 0; //  (j)---(i)---(k)
-
-          oneHoleMovements[i] = getBevelVec(ahole[i], ahole[j], ahole[k]);
-        }
-
-        holesMovements.push(oneHoleMovements);
-        verticesMovements = verticesMovements.concat(oneHoleMovements);
-      } // Loop bevelSegments, 1 for the front, 1 for the back
-
-
-      for (let b = 0; b < bevelSegments; b++) {
-        //for ( b = bevelSegments; b > 0; b -- ) {
-        const t = b / bevelSegments;
-        const z = bevelThickness * Math.cos(t * Math.PI / 2);
-        const bs = bevelSize * Math.sin(t * Math.PI / 2) + bevelOffset; // contract shape
-
-        for (let i = 0, il = contour.length; i < il; i++) {
-          const vert = scalePt2(contour[i], contourMovements[i], bs);
-          v(vert.x, vert.y, -z);
-        } // expand holes
-
-
-        for (let h = 0, hl = holes.length; h < hl; h++) {
-          const ahole = holes[h];
-          oneHoleMovements = holesMovements[h];
-
-          for (let i = 0, il = ahole.length; i < il; i++) {
-            const vert = scalePt2(ahole[i], oneHoleMovements[i], bs);
-            v(vert.x, vert.y, -z);
-          }
-        }
-      }
-
-      const bs = bevelSize + bevelOffset; // Back facing vertices
-
-      for (let i = 0; i < vlen; i++) {
-        const vert = bevelEnabled ? scalePt2(vertices[i], verticesMovements[i], bs) : vertices[i];
-
-        if (!extrudeByPath) {
-          v(vert.x, vert.y, 0);
-        } else {
-          // v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );
-          normal.copy(splineTube.normals[0]).multiplyScalar(vert.x);
-          binormal.copy(splineTube.binormals[0]).multiplyScalar(vert.y);
-          position2.copy(extrudePts[0]).add(normal).add(binormal);
-          v(position2.x, position2.y, position2.z);
-        }
-      } // Add stepped vertices...
-      // Including front facing vertices
-
-
-      for (let s = 1; s <= steps; s++) {
-        for (let i = 0; i < vlen; i++) {
-          const vert = bevelEnabled ? scalePt2(vertices[i], verticesMovements[i], bs) : vertices[i];
-
-          if (!extrudeByPath) {
-            v(vert.x, vert.y, depth / steps * s);
-          } else {
-            // v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );
-            normal.copy(splineTube.normals[s]).multiplyScalar(vert.x);
-            binormal.copy(splineTube.binormals[s]).multiplyScalar(vert.y);
-            position2.copy(extrudePts[s]).add(normal).add(binormal);
-            v(position2.x, position2.y, position2.z);
-          }
-        }
-      } // Add bevel segments planes
-      //for ( b = 1; b <= bevelSegments; b ++ ) {
-
-
-      for (let b = bevelSegments - 1; b >= 0; b--) {
-        const t = b / bevelSegments;
-        const z = bevelThickness * Math.cos(t * Math.PI / 2);
-        const bs = bevelSize * Math.sin(t * Math.PI / 2) + bevelOffset; // contract shape
-
-        for (let i = 0, il = contour.length; i < il; i++) {
-          const vert = scalePt2(contour[i], contourMovements[i], bs);
-          v(vert.x, vert.y, depth + z);
-        } // expand holes
-
-
-        for (let h = 0, hl = holes.length; h < hl; h++) {
-          const ahole = holes[h];
-          oneHoleMovements = holesMovements[h];
-
-          for (let i = 0, il = ahole.length; i < il; i++) {
-            const vert = scalePt2(ahole[i], oneHoleMovements[i], bs);
-
-            if (!extrudeByPath) {
-              v(vert.x, vert.y, depth + z);
-            } else {
-              v(vert.x, vert.y + extrudePts[steps - 1].y, extrudePts[steps - 1].x + z);
-            }
-          }
-        }
-      }
-      /* Faces */
-      // Top and bottom faces
-
-
-      buildLidFaces(); // Sides faces
-
-      buildSideFaces(); /////  Internal functions
-
-      function buildLidFaces() {
-        const start = verticesArray.length / 3;
-
-        if (bevelEnabled) {
-          let layer = 0; // steps + 1
-
-          let offset = vlen * layer; // Bottom faces
-
-          for (let i = 0; i < flen; i++) {
-            const face = faces[i];
-            f3(face[2] + offset, face[1] + offset, face[0] + offset);
-          }
-
-          layer = steps + bevelSegments * 2;
-          offset = vlen * layer; // Top faces
-
-          for (let i = 0; i < flen; i++) {
-            const face = faces[i];
-            f3(face[0] + offset, face[1] + offset, face[2] + offset);
-          }
-        } else {
-          // Bottom faces
-          for (let i = 0; i < flen; i++) {
-            const face = faces[i];
-            f3(face[2], face[1], face[0]);
-          } // Top faces
-
-
-          for (let i = 0; i < flen; i++) {
-            const face = faces[i];
-            f3(face[0] + vlen * steps, face[1] + vlen * steps, face[2] + vlen * steps);
-          }
-        }
-
-        scope.addGroup(start, verticesArray.length / 3 - start, 0);
-      } // Create faces for the z-sides of the shape
-
-
-      function buildSideFaces() {
-        const start = verticesArray.length / 3;
-        let layeroffset = 0;
-        sidewalls(contour, layeroffset);
-        layeroffset += contour.length;
-
-        for (let h = 0, hl = holes.length; h < hl; h++) {
-          const ahole = holes[h];
-          sidewalls(ahole, layeroffset); //, true
-
-          layeroffset += ahole.length;
-        }
-
-        scope.addGroup(start, verticesArray.length / 3 - start, 1);
-      }
-
-      function sidewalls(contour, layeroffset) {
-        let i = contour.length;
-
-        while (--i >= 0) {
-          const j = i;
-          let k = i - 1;
-          if (k < 0) k = contour.length - 1; //console.log('b', i,j, i-1, k,vertices.length);
-
-          for (let s = 0, sl = steps + bevelSegments * 2; s < sl; s++) {
-            const slen1 = vlen * s;
-            const slen2 = vlen * (s + 1);
-            const a = layeroffset + j + slen1,
-                  b = layeroffset + k + slen1,
-                  c = layeroffset + k + slen2,
-                  d = layeroffset + j + slen2;
-            f4(a, b, c, d);
-          }
-        }
-      }
-
-      function v(x, y, z) {
-        placeholder.push(x);
-        placeholder.push(y);
-        placeholder.push(z);
-      }
-
-      function f3(a, b, c) {
-        addVertex(a);
-        addVertex(b);
-        addVertex(c);
-        const nextIndex = verticesArray.length / 3;
-        const uvs = uvgen.generateTopUV(scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1);
-        addUV(uvs[0]);
-        addUV(uvs[1]);
-        addUV(uvs[2]);
-      }
-
-      function f4(a, b, c, d) {
-        addVertex(a);
-        addVertex(b);
-        addVertex(d);
-        addVertex(b);
-        addVertex(c);
-        addVertex(d);
-        const nextIndex = verticesArray.length / 3;
-        const uvs = uvgen.generateSideWallUV(scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1);
-        addUV(uvs[0]);
-        addUV(uvs[1]);
-        addUV(uvs[3]);
-        addUV(uvs[1]);
-        addUV(uvs[2]);
-        addUV(uvs[3]);
-      }
-
-      function addVertex(index) {
-        verticesArray.push(placeholder[index * 3 + 0]);
-        verticesArray.push(placeholder[index * 3 + 1]);
-        verticesArray.push(placeholder[index * 3 + 2]);
-      }
-
-      function addUV(vector2) {
-        uvArray.push(vector2.x);
-        uvArray.push(vector2.y);
-      }
-    }
-  }
-
-  toJSON() {
-    const data = BufferGeometry.prototype.toJSON.call(this);
-    const shapes = this.parameters.shapes;
-    const options = this.parameters.options;
-    return toJSON(shapes, options, data);
-  }
-
-}
-
-exports.ExtrudeGeometry = exports.ExtrudeBufferGeometry = ExtrudeGeometry;
-const WorldUVGenerator = {
-  generateTopUV: function (geometry, vertices, indexA, indexB, indexC) {
-    const a_x = vertices[indexA * 3];
-    const a_y = vertices[indexA * 3 + 1];
-    const b_x = vertices[indexB * 3];
-    const b_y = vertices[indexB * 3 + 1];
-    const c_x = vertices[indexC * 3];
-    const c_y = vertices[indexC * 3 + 1];
-    return [new Vector2(a_x, a_y), new Vector2(b_x, b_y), new Vector2(c_x, c_y)];
-  },
-  generateSideWallUV: function (geometry, vertices, indexA, indexB, indexC, indexD) {
-    const a_x = vertices[indexA * 3];
-    const a_y = vertices[indexA * 3 + 1];
-    const a_z = vertices[indexA * 3 + 2];
-    const b_x = vertices[indexB * 3];
-    const b_y = vertices[indexB * 3 + 1];
-    const b_z = vertices[indexB * 3 + 2];
-    const c_x = vertices[indexC * 3];
-    const c_y = vertices[indexC * 3 + 1];
-    const c_z = vertices[indexC * 3 + 2];
-    const d_x = vertices[indexD * 3];
-    const d_y = vertices[indexD * 3 + 1];
-    const d_z = vertices[indexD * 3 + 2];
-
-    if (Math.abs(a_y - b_y) < 0.01) {
-      return [new Vector2(a_x, 1 - a_z), new Vector2(b_x, 1 - b_z), new Vector2(c_x, 1 - c_z), new Vector2(d_x, 1 - d_z)];
-    } else {
-      return [new Vector2(a_y, 1 - a_z), new Vector2(b_y, 1 - b_z), new Vector2(c_y, 1 - c_z), new Vector2(d_y, 1 - d_z)];
-    }
-  }
-};
-
-function toJSON(shapes, options, data) {
-  data.shapes = [];
-
-  if (Array.isArray(shapes)) {
-    for (let i = 0, l = shapes.length; i < l; i++) {
-      const shape = shapes[i];
-      data.shapes.push(shape.uuid);
-    }
-  } else {
-    data.shapes.push(shapes.uuid);
-  }
-
-  if (options.extrudePath !== undefined) data.options.extrudePath = options.extrudePath.toJSON();
-  return data;
-}
-
-class IcosahedronGeometry extends PolyhedronGeometry {
-  constructor(radius = 1, detail = 0) {
-    const t = (1 + Math.sqrt(5)) / 2;
-    const vertices = [-1, t, 0, 1, t, 0, -1, -t, 0, 1, -t, 0, 0, -1, t, 0, 1, t, 0, -1, -t, 0, 1, -t, t, 0, -1, t, 0, 1, -t, 0, -1, -t, 0, 1];
-    const indices = [0, 11, 5, 0, 5, 1, 0, 1, 7, 0, 7, 10, 0, 10, 11, 1, 5, 9, 5, 11, 4, 11, 10, 2, 10, 7, 6, 7, 1, 8, 3, 9, 4, 3, 4, 2, 3, 2, 6, 3, 6, 8, 3, 8, 9, 4, 9, 5, 2, 4, 11, 6, 2, 10, 8, 6, 7, 9, 8, 1];
-    super(vertices, indices, radius, detail);
-    this.type = 'IcosahedronGeometry';
-    this.parameters = {
-      radius: radius,
-      detail: detail
-    };
-  }
-
-}
-
-exports.IcosahedronGeometry = exports.IcosahedronBufferGeometry = IcosahedronGeometry;
-
-class LatheGeometry extends BufferGeometry {
-  constructor(points, segments = 12, phiStart = 0, phiLength = Math.PI * 2) {
-    super();
-    this.type = 'LatheGeometry';
-    this.parameters = {
-      points: points,
-      segments: segments,
-      phiStart: phiStart,
-      phiLength: phiLength
-    };
-    segments = Math.floor(segments); // clamp phiLength so it's in range of [ 0, 2PI ]
-
-    phiLength = MathUtils.clamp(phiLength, 0, Math.PI * 2); // buffers
-
-    const indices = [];
-    const vertices = [];
-    const uvs = []; // helper variables
-
-    const inverseSegments = 1.0 / segments;
-    const vertex = new Vector3();
-    const uv = new Vector2(); // generate vertices and uvs
-
-    for (let i = 0; i <= segments; i++) {
-      const phi = phiStart + i * inverseSegments * phiLength;
-      const sin = Math.sin(phi);
-      const cos = Math.cos(phi);
-
-      for (let j = 0; j <= points.length - 1; j++) {
-        // vertex
-        vertex.x = points[j].x * sin;
-        vertex.y = points[j].y;
-        vertex.z = points[j].x * cos;
-        vertices.push(vertex.x, vertex.y, vertex.z); // uv
-
-        uv.x = i / segments;
-        uv.y = j / (points.length - 1);
-        uvs.push(uv.x, uv.y);
-      }
-    } // indices
-
-
-    for (let i = 0; i < segments; i++) {
-      for (let j = 0; j < points.length - 1; j++) {
-        const base = j + i * points.length;
-        const a = base;
-        const b = base + points.length;
-        const c = base + points.length + 1;
-        const d = base + 1; // faces
-
-        indices.push(a, b, d);
-        indices.push(b, c, d);
-      }
-    } // build geometry
-
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // generate normals
-
-    this.computeVertexNormals(); // if the geometry is closed, we need to average the normals along the seam.
-    // because the corresponding vertices are identical (but still have different UVs).
-
-    if (phiLength === Math.PI * 2) {
-      const normals = this.attributes.normal.array;
-      const n1 = new Vector3();
-      const n2 = new Vector3();
-      const n = new Vector3(); // this is the buffer offset for the last line of vertices
-
-      const base = segments * points.length * 3;
-
-      for (let i = 0, j = 0; i < points.length; i++, j += 3) {
-        // select the normal of the vertex in the first line
-        n1.x = normals[j + 0];
-        n1.y = normals[j + 1];
-        n1.z = normals[j + 2]; // select the normal of the vertex in the last line
-
-        n2.x = normals[base + j + 0];
-        n2.y = normals[base + j + 1];
-        n2.z = normals[base + j + 2]; // average normals
-
-        n.addVectors(n1, n2).normalize(); // assign the new values to both normals
-
-        normals[j + 0] = normals[base + j + 0] = n.x;
-        normals[j + 1] = normals[base + j + 1] = n.y;
-        normals[j + 2] = normals[base + j + 2] = n.z;
-      }
-    }
-  }
-
-}
-
-exports.LatheGeometry = exports.LatheBufferGeometry = LatheGeometry;
-
-class OctahedronGeometry extends PolyhedronGeometry {
-  constructor(radius = 1, detail = 0) {
-    const vertices = [1, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1];
-    const indices = [0, 2, 4, 0, 4, 3, 0, 3, 5, 0, 5, 2, 1, 2, 5, 1, 5, 3, 1, 3, 4, 1, 4, 2];
-    super(vertices, indices, radius, detail);
-    this.type = 'OctahedronGeometry';
-    this.parameters = {
-      radius: radius,
-      detail: detail
-    };
-  }
-
-}
-/**
- * Parametric Surfaces Geometry
- * based on the brilliant article by @prideout https://prideout.net/blog/old/blog/index.html@p=44.html
- */
-
-
-exports.OctahedronGeometry = exports.OctahedronBufferGeometry = OctahedronGeometry;
-
-function ParametricGeometry(func, slices, stacks) {
-  BufferGeometry.call(this);
-  this.type = 'ParametricGeometry';
-  this.parameters = {
-    func: func,
-    slices: slices,
-    stacks: stacks
-  }; // buffers
-
-  const indices = [];
-  const vertices = [];
-  const normals = [];
-  const uvs = [];
-  const EPS = 0.00001;
-  const normal = new Vector3();
-  const p0 = new Vector3(),
-        p1 = new Vector3();
-  const pu = new Vector3(),
-        pv = new Vector3();
-
-  if (func.length < 3) {
-    console.error('THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.');
-  } // generate vertices, normals and uvs
-
-
-  const sliceCount = slices + 1;
-
-  for (let i = 0; i <= stacks; i++) {
-    const v = i / stacks;
-
-    for (let j = 0; j <= slices; j++) {
-      const u = j / slices; // vertex
-
-      func(u, v, p0);
-      vertices.push(p0.x, p0.y, p0.z); // normal
-      // approximate tangent vectors via finite differences
-
-      if (u - EPS >= 0) {
-        func(u - EPS, v, p1);
-        pu.subVectors(p0, p1);
-      } else {
-        func(u + EPS, v, p1);
-        pu.subVectors(p1, p0);
-      }
-
-      if (v - EPS >= 0) {
-        func(u, v - EPS, p1);
-        pv.subVectors(p0, p1);
-      } else {
-        func(u, v + EPS, p1);
-        pv.subVectors(p1, p0);
-      } // cross product of tangent vectors returns surface normal
-
-
-      normal.crossVectors(pu, pv).normalize();
-      normals.push(normal.x, normal.y, normal.z); // uv
-
-      uvs.push(u, v);
-    }
-  } // generate indices
-
-
-  for (let i = 0; i < stacks; i++) {
-    for (let j = 0; j < slices; j++) {
-      const a = i * sliceCount + j;
-      const b = i * sliceCount + j + 1;
-      const c = (i + 1) * sliceCount + j + 1;
-      const d = (i + 1) * sliceCount + j; // faces one and two
-
-      indices.push(a, b, d);
-      indices.push(b, c, d);
-    }
-  } // build geometry
-
-
-  this.setIndex(indices);
-  this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-  this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-  this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
-}
-
-ParametricGeometry.prototype = Object.create(BufferGeometry.prototype);
-ParametricGeometry.prototype.constructor = ParametricGeometry;
-
-class RingGeometry extends BufferGeometry {
-  constructor(innerRadius = 0.5, outerRadius = 1, thetaSegments = 8, phiSegments = 1, thetaStart = 0, thetaLength = Math.PI * 2) {
-    super();
-    this.type = 'RingGeometry';
-    this.parameters = {
-      innerRadius: innerRadius,
-      outerRadius: outerRadius,
-      thetaSegments: thetaSegments,
-      phiSegments: phiSegments,
-      thetaStart: thetaStart,
-      thetaLength: thetaLength
-    };
-    thetaSegments = Math.max(3, thetaSegments);
-    phiSegments = Math.max(1, phiSegments); // buffers
-
-    const indices = [];
-    const vertices = [];
-    const normals = [];
-    const uvs = []; // some helper variables
-
-    let radius = innerRadius;
-    const radiusStep = (outerRadius - innerRadius) / phiSegments;
-    const vertex = new Vector3();
-    const uv = new Vector2(); // generate vertices, normals and uvs
-
-    for (let j = 0; j <= phiSegments; j++) {
-      for (let i = 0; i <= thetaSegments; i++) {
-        // values are generate from the inside of the ring to the outside
-        const segment = thetaStart + i / thetaSegments * thetaLength; // vertex
-
-        vertex.x = radius * Math.cos(segment);
-        vertex.y = radius * Math.sin(segment);
-        vertices.push(vertex.x, vertex.y, vertex.z); // normal
-
-        normals.push(0, 0, 1); // uv
-
-        uv.x = (vertex.x / outerRadius + 1) / 2;
-        uv.y = (vertex.y / outerRadius + 1) / 2;
-        uvs.push(uv.x, uv.y);
-      } // increase the radius for next row of vertices
-
-
-      radius += radiusStep;
-    } // indices
-
-
-    for (let j = 0; j < phiSegments; j++) {
-      const thetaSegmentLevel = j * (thetaSegments + 1);
-
-      for (let i = 0; i < thetaSegments; i++) {
-        const segment = i + thetaSegmentLevel;
-        const a = segment;
-        const b = segment + thetaSegments + 1;
-        const c = segment + thetaSegments + 2;
-        const d = segment + 1; // faces
-
-        indices.push(a, b, d);
-        indices.push(b, c, d);
-      }
-    } // build geometry
-
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
-  }
-
-}
-
-exports.RingGeometry = exports.RingBufferGeometry = RingGeometry;
-
-class ShapeGeometry extends BufferGeometry {
-  constructor(shapes, curveSegments = 12) {
-    super();
-    this.type = 'ShapeGeometry';
-    this.parameters = {
-      shapes: shapes,
-      curveSegments: curveSegments
-    }; // buffers
-
-    const indices = [];
-    const vertices = [];
-    const normals = [];
-    const uvs = []; // helper variables
-
-    let groupStart = 0;
-    let groupCount = 0; // allow single and array values for "shapes" parameter
-
-    if (Array.isArray(shapes) === false) {
-      addShape(shapes);
-    } else {
-      for (let i = 0; i < shapes.length; i++) {
-        addShape(shapes[i]);
-        this.addGroup(groupStart, groupCount, i); // enables MultiMaterial support
-
-        groupStart += groupCount;
-        groupCount = 0;
-      }
-    } // build geometry
-
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // helper functions
-
-    function addShape(shape) {
-      const indexOffset = vertices.length / 3;
-      const points = shape.extractPoints(curveSegments);
-      let shapeVertices = points.shape;
-      const shapeHoles = points.holes; // check direction of vertices
-
-      if (ShapeUtils.isClockWise(shapeVertices) === false) {
-        shapeVertices = shapeVertices.reverse();
-      }
-
-      for (let i = 0, l = shapeHoles.length; i < l; i++) {
-        const shapeHole = shapeHoles[i];
-
-        if (ShapeUtils.isClockWise(shapeHole) === true) {
-          shapeHoles[i] = shapeHole.reverse();
-        }
-      }
-
-      const faces = ShapeUtils.triangulateShape(shapeVertices, shapeHoles); // join vertices of inner and outer paths to a single array
-
-      for (let i = 0, l = shapeHoles.length; i < l; i++) {
-        const shapeHole = shapeHoles[i];
-        shapeVertices = shapeVertices.concat(shapeHole);
-      } // vertices, normals, uvs
-
-
-      for (let i = 0, l = shapeVertices.length; i < l; i++) {
-        const vertex = shapeVertices[i];
-        vertices.push(vertex.x, vertex.y, 0);
-        normals.push(0, 0, 1);
-        uvs.push(vertex.x, vertex.y); // world uvs
-      } // incides
-
-
-      for (let i = 0, l = faces.length; i < l; i++) {
-        const face = faces[i];
-        const a = face[0] + indexOffset;
-        const b = face[1] + indexOffset;
-        const c = face[2] + indexOffset;
-        indices.push(a, b, c);
-        groupCount += 3;
-      }
-    }
-  }
-
-  toJSON() {
-    const data = BufferGeometry.prototype.toJSON.call(this);
-    const shapes = this.parameters.shapes;
-    return toJSON$1(shapes, data);
-  }
-
-}
-
-exports.ShapeGeometry = exports.ShapeBufferGeometry = ShapeGeometry;
-
-function toJSON$1(shapes, data) {
-  data.shapes = [];
-
-  if (Array.isArray(shapes)) {
-    for (let i = 0, l = shapes.length; i < l; i++) {
-      const shape = shapes[i];
-      data.shapes.push(shape.uuid);
-    }
-  } else {
-    data.shapes.push(shapes.uuid);
-  }
-
-  return data;
-}
-
-class SphereGeometry extends BufferGeometry {
-  constructor(radius = 1, widthSegments = 8, heightSegments = 6, phiStart = 0, phiLength = Math.PI * 2, thetaStart = 0, thetaLength = Math.PI) {
-    super();
-    this.type = 'SphereGeometry';
-    this.parameters = {
-      radius: radius,
-      widthSegments: widthSegments,
-      heightSegments: heightSegments,
-      phiStart: phiStart,
-      phiLength: phiLength,
-      thetaStart: thetaStart,
-      thetaLength: thetaLength
-    };
-    widthSegments = Math.max(3, Math.floor(widthSegments));
-    heightSegments = Math.max(2, Math.floor(heightSegments));
-    const thetaEnd = Math.min(thetaStart + thetaLength, Math.PI);
-    let index = 0;
-    const grid = [];
-    const vertex = new Vector3();
-    const normal = new Vector3(); // buffers
-
-    const indices = [];
-    const vertices = [];
-    const normals = [];
-    const uvs = []; // generate vertices, normals and uvs
-
-    for (let iy = 0; iy <= heightSegments; iy++) {
-      const verticesRow = [];
-      const v = iy / heightSegments; // special case for the poles
-
-      let uOffset = 0;
-
-      if (iy == 0 && thetaStart == 0) {
-        uOffset = 0.5 / widthSegments;
-      } else if (iy == heightSegments && thetaEnd == Math.PI) {
-        uOffset = -0.5 / widthSegments;
-      }
-
-      for (let ix = 0; ix <= widthSegments; ix++) {
-        const u = ix / widthSegments; // vertex
-
-        vertex.x = -radius * Math.cos(phiStart + u * phiLength) * Math.sin(thetaStart + v * thetaLength);
-        vertex.y = radius * Math.cos(thetaStart + v * thetaLength);
-        vertex.z = radius * Math.sin(phiStart + u * phiLength) * Math.sin(thetaStart + v * thetaLength);
-        vertices.push(vertex.x, vertex.y, vertex.z); // normal
-
-        normal.copy(vertex).normalize();
-        normals.push(normal.x, normal.y, normal.z); // uv
-
-        uvs.push(u + uOffset, 1 - v);
-        verticesRow.push(index++);
-      }
-
-      grid.push(verticesRow);
-    } // indices
-
-
-    for (let iy = 0; iy < heightSegments; iy++) {
-      for (let ix = 0; ix < widthSegments; ix++) {
-        const a = grid[iy][ix + 1];
-        const b = grid[iy][ix];
-        const c = grid[iy + 1][ix];
-        const d = grid[iy + 1][ix + 1];
-        if (iy !== 0 || thetaStart > 0) indices.push(a, b, d);
-        if (iy !== heightSegments - 1 || thetaEnd < Math.PI) indices.push(b, c, d);
-      }
-    } // build geometry
-
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
-  }
-
-}
-
-exports.SphereGeometry = exports.SphereBufferGeometry = SphereGeometry;
-
-class TetrahedronGeometry extends PolyhedronGeometry {
-  constructor(radius = 1, detail = 0) {
-    const vertices = [1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1];
-    const indices = [2, 1, 0, 0, 3, 2, 1, 3, 0, 2, 3, 1];
-    super(vertices, indices, radius, detail);
-    this.type = 'TetrahedronGeometry';
-    this.parameters = {
-      radius: radius,
-      detail: detail
-    };
-  }
-
-}
-/**
- * Text = 3D Text
- *
- * parameters = {
- *  font: <THREE.Font>, // font
- *
- *  size: <float>, // size of the text
- *  height: <float>, // thickness to extrude text
- *  curveSegments: <int>, // number of points on the curves
- *
- *  bevelEnabled: <bool>, // turn on bevel
- *  bevelThickness: <float>, // how deep into text bevel goes
- *  bevelSize: <float>, // how far from text outline (including bevelOffset) is bevel
- *  bevelOffset: <float> // how far from text outline does bevel start
- * }
- */
-
-
-exports.TetrahedronGeometry = exports.TetrahedronBufferGeometry = TetrahedronGeometry;
-
-class TextGeometry extends ExtrudeGeometry {
-  constructor(text, parameters = {}) {
-    const font = parameters.font;
-
-    if (!(font && font.isFont)) {
-      console.error('THREE.TextGeometry: font parameter is not an instance of THREE.Font.');
-      return new BufferGeometry();
-    }
-
-    const shapes = font.generateShapes(text, parameters.size); // translate parameters to ExtrudeGeometry API
-
-    parameters.depth = parameters.height !== undefined ? parameters.height : 50; // defaults
-
-    if (parameters.bevelThickness === undefined) parameters.bevelThickness = 10;
-    if (parameters.bevelSize === undefined) parameters.bevelSize = 8;
-    if (parameters.bevelEnabled === undefined) parameters.bevelEnabled = false;
-    super(shapes, parameters);
-    this.type = 'TextGeometry';
-  }
-
-}
-
-exports.TextGeometry = exports.TextBufferGeometry = TextGeometry;
-
-class TorusGeometry extends BufferGeometry {
-  constructor(radius = 1, tube = 0.4, radialSegments = 8, tubularSegments = 6, arc = Math.PI * 2) {
-    super();
-    this.type = 'TorusGeometry';
-    this.parameters = {
-      radius: radius,
-      tube: tube,
-      radialSegments: radialSegments,
-      tubularSegments: tubularSegments,
-      arc: arc
-    };
-    radialSegments = Math.floor(radialSegments);
-    tubularSegments = Math.floor(tubularSegments); // buffers
-
-    const indices = [];
-    const vertices = [];
-    const normals = [];
-    const uvs = []; // helper variables
-
-    const center = new Vector3();
-    const vertex = new Vector3();
-    const normal = new Vector3(); // generate vertices, normals and uvs
-
-    for (let j = 0; j <= radialSegments; j++) {
-      for (let i = 0; i <= tubularSegments; i++) {
-        const u = i / tubularSegments * arc;
-        const v = j / radialSegments * Math.PI * 2; // vertex
-
-        vertex.x = (radius + tube * Math.cos(v)) * Math.cos(u);
-        vertex.y = (radius + tube * Math.cos(v)) * Math.sin(u);
-        vertex.z = tube * Math.sin(v);
-        vertices.push(vertex.x, vertex.y, vertex.z); // normal
-
-        center.x = radius * Math.cos(u);
-        center.y = radius * Math.sin(u);
-        normal.subVectors(vertex, center).normalize();
-        normals.push(normal.x, normal.y, normal.z); // uv
-
-        uvs.push(i / tubularSegments);
-        uvs.push(j / radialSegments);
-      }
-    } // generate indices
-
-
-    for (let j = 1; j <= radialSegments; j++) {
-      for (let i = 1; i <= tubularSegments; i++) {
-        // indices
-        const a = (tubularSegments + 1) * j + i - 1;
-        const b = (tubularSegments + 1) * (j - 1) + i - 1;
-        const c = (tubularSegments + 1) * (j - 1) + i;
-        const d = (tubularSegments + 1) * j + i; // faces
-
-        indices.push(a, b, d);
-        indices.push(b, c, d);
-      }
-    } // build geometry
-
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
-  }
-
-}
-
-exports.TorusGeometry = exports.TorusBufferGeometry = TorusGeometry;
-
-class TorusKnotGeometry extends BufferGeometry {
-  constructor(radius = 1, tube = 0.4, tubularSegments = 64, radialSegments = 8, p = 2, q = 3) {
-    super();
-    this.type = 'TorusKnotGeometry';
-    this.parameters = {
-      radius: radius,
-      tube: tube,
-      tubularSegments: tubularSegments,
-      radialSegments: radialSegments,
-      p: p,
-      q: q
-    };
-    tubularSegments = Math.floor(tubularSegments);
-    radialSegments = Math.floor(radialSegments); // buffers
-
-    const indices = [];
-    const vertices = [];
-    const normals = [];
-    const uvs = []; // helper variables
-
-    const vertex = new Vector3();
-    const normal = new Vector3();
-    const P1 = new Vector3();
-    const P2 = new Vector3();
-    const B = new Vector3();
-    const T = new Vector3();
-    const N = new Vector3(); // generate vertices, normals and uvs
-
-    for (let i = 0; i <= tubularSegments; ++i) {
-      // the radian "u" is used to calculate the position on the torus curve of the current tubular segement
-      const u = i / tubularSegments * p * Math.PI * 2; // now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
-      // these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions
-
-      calculatePositionOnCurve(u, p, q, radius, P1);
-      calculatePositionOnCurve(u + 0.01, p, q, radius, P2); // calculate orthonormal basis
-
-      T.subVectors(P2, P1);
-      N.addVectors(P2, P1);
-      B.crossVectors(T, N);
-      N.crossVectors(B, T); // normalize B, N. T can be ignored, we don't use it
-
-      B.normalize();
-      N.normalize();
-
-      for (let j = 0; j <= radialSegments; ++j) {
-        // now calculate the vertices. they are nothing more than an extrusion of the torus curve.
-        // because we extrude a shape in the xy-plane, there is no need to calculate a z-value.
-        const v = j / radialSegments * Math.PI * 2;
-        const cx = -tube * Math.cos(v);
-        const cy = tube * Math.sin(v); // now calculate the final vertex position.
-        // first we orient the extrusion with our basis vectos, then we add it to the current position on the curve
-
-        vertex.x = P1.x + (cx * N.x + cy * B.x);
-        vertex.y = P1.y + (cx * N.y + cy * B.y);
-        vertex.z = P1.z + (cx * N.z + cy * B.z);
-        vertices.push(vertex.x, vertex.y, vertex.z); // normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)
-
-        normal.subVectors(vertex, P1).normalize();
-        normals.push(normal.x, normal.y, normal.z); // uv
-
-        uvs.push(i / tubularSegments);
-        uvs.push(j / radialSegments);
-      }
-    } // generate indices
-
-
-    for (let j = 1; j <= tubularSegments; j++) {
-      for (let i = 1; i <= radialSegments; i++) {
-        // indices
-        const a = (radialSegments + 1) * (j - 1) + (i - 1);
-        const b = (radialSegments + 1) * j + (i - 1);
-        const c = (radialSegments + 1) * j + i;
-        const d = (radialSegments + 1) * (j - 1) + i; // faces
-
-        indices.push(a, b, d);
-        indices.push(b, c, d);
-      }
-    } // build geometry
-
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // this function calculates the current position on the torus curve
-
-    function calculatePositionOnCurve(u, p, q, radius, position) {
-      const cu = Math.cos(u);
-      const su = Math.sin(u);
-      const quOverP = q / p * u;
-      const cs = Math.cos(quOverP);
-      position.x = radius * (2 + cs) * 0.5 * cu;
-      position.y = radius * (2 + cs) * su * 0.5;
-      position.z = radius * Math.sin(quOverP) * 0.5;
-    }
-  }
-
-}
-
-exports.TorusKnotGeometry = exports.TorusKnotBufferGeometry = TorusKnotGeometry;
-
-class TubeGeometry extends BufferGeometry {
-  constructor(path, tubularSegments = 64, radius = 1, radialSegments = 8, closed = false) {
-    super();
-    this.type = 'TubeGeometry';
-    this.parameters = {
-      path: path,
-      tubularSegments: tubularSegments,
-      radius: radius,
-      radialSegments: radialSegments,
-      closed: closed
-    };
-    const frames = path.computeFrenetFrames(tubularSegments, closed); // expose internals
-
-    this.tangents = frames.tangents;
-    this.normals = frames.normals;
-    this.binormals = frames.binormals; // helper variables
-
-    const vertex = new Vector3();
-    const normal = new Vector3();
-    const uv = new Vector2();
-    let P = new Vector3(); // buffer
-
-    const vertices = [];
-    const normals = [];
-    const uvs = [];
-    const indices = []; // create buffer data
-
-    generateBufferData(); // build geometry
-
-    this.setIndex(indices);
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
-    this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // functions
-
-    function generateBufferData() {
-      for (let i = 0; i < tubularSegments; i++) {
-        generateSegment(i);
-      } // if the geometry is not closed, generate the last row of vertices and normals
-      // at the regular position on the given path
-      //
-      // if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)
-
-
-      generateSegment(closed === false ? tubularSegments : 0); // uvs are generated in a separate function.
-      // this makes it easy compute correct values for closed geometries
-
-      generateUVs(); // finally create faces
-
-      generateIndices();
-    }
-
-    function generateSegment(i) {
-      // we use getPointAt to sample evenly distributed points from the given path
-      P = path.getPointAt(i / tubularSegments, P); // retrieve corresponding normal and binormal
-
-      const N = frames.normals[i];
-      const B = frames.binormals[i]; // generate normals and vertices for the current segment
-
-      for (let j = 0; j <= radialSegments; j++) {
-        const v = j / radialSegments * Math.PI * 2;
-        const sin = Math.sin(v);
-        const cos = -Math.cos(v); // normal
-
-        normal.x = cos * N.x + sin * B.x;
-        normal.y = cos * N.y + sin * B.y;
-        normal.z = cos * N.z + sin * B.z;
-        normal.normalize();
-        normals.push(normal.x, normal.y, normal.z); // vertex
-
-        vertex.x = P.x + radius * normal.x;
-        vertex.y = P.y + radius * normal.y;
-        vertex.z = P.z + radius * normal.z;
-        vertices.push(vertex.x, vertex.y, vertex.z);
-      }
-    }
-
-    function generateIndices() {
-      for (let j = 1; j <= tubularSegments; j++) {
-        for (let i = 1; i <= radialSegments; i++) {
-          const a = (radialSegments + 1) * (j - 1) + (i - 1);
-          const b = (radialSegments + 1) * j + (i - 1);
-          const c = (radialSegments + 1) * j + i;
-          const d = (radialSegments + 1) * (j - 1) + i; // faces
-
-          indices.push(a, b, d);
-          indices.push(b, c, d);
-        }
-      }
-    }
-
-    function generateUVs() {
-      for (let i = 0; i <= tubularSegments; i++) {
-        for (let j = 0; j <= radialSegments; j++) {
-          uv.x = i / tubularSegments;
-          uv.y = j / radialSegments;
-          uvs.push(uv.x, uv.y);
-        }
-      }
-    }
-  }
-
-  toJSON() {
-    const data = BufferGeometry.prototype.toJSON.call(this);
-    data.path = this.parameters.path.toJSON();
-    return data;
-  }
-
-}
-
-exports.TubeGeometry = exports.TubeBufferGeometry = TubeGeometry;
-
-class WireframeGeometry extends BufferGeometry {
-  constructor(geometry) {
-    super();
-    this.type = 'WireframeGeometry';
-
-    if (geometry.isGeometry === true) {
-      console.error('THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
-      return;
-    } // buffer
-
-
-    const vertices = []; // helper variables
-
-    const edge = [0, 0],
-          edges = {};
-    const vertex = new Vector3();
-
-    if (geometry.index !== null) {
-      // indexed BufferGeometry
-      const position = geometry.attributes.position;
-      const indices = geometry.index;
-      let groups = geometry.groups;
-
-      if (groups.length === 0) {
-        groups = [{
-          start: 0,
-          count: indices.count,
-          materialIndex: 0
-        }];
-      } // create a data structure that contains all eges without duplicates
-
-
-      for (let o = 0, ol = groups.length; o < ol; ++o) {
-        const group = groups[o];
-        const start = group.start;
-        const count = group.count;
-
-        for (let i = start, l = start + count; i < l; i += 3) {
-          for (let j = 0; j < 3; j++) {
-            const edge1 = indices.getX(i + j);
-            const edge2 = indices.getX(i + (j + 1) % 3);
-            edge[0] = Math.min(edge1, edge2); // sorting prevents duplicates
-
-            edge[1] = Math.max(edge1, edge2);
-            const key = edge[0] + ',' + edge[1];
-
-            if (edges[key] === undefined) {
-              edges[key] = {
-                index1: edge[0],
-                index2: edge[1]
-              };
-            }
-          }
-        }
-      } // generate vertices
-
-
-      for (const key in edges) {
-        const e = edges[key];
-        vertex.fromBufferAttribute(position, e.index1);
-        vertices.push(vertex.x, vertex.y, vertex.z);
-        vertex.fromBufferAttribute(position, e.index2);
-        vertices.push(vertex.x, vertex.y, vertex.z);
-      }
-    } else {
-      // non-indexed BufferGeometry
-      const position = geometry.attributes.position;
-
-      for (let i = 0, l = position.count / 3; i < l; i++) {
-        for (let j = 0; j < 3; j++) {
-          // three edges per triangle, an edge is represented as (index1, index2)
-          // e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)
-          const index1 = 3 * i + j;
-          vertex.fromBufferAttribute(position, index1);
-          vertices.push(vertex.x, vertex.y, vertex.z);
-          const index2 = 3 * i + (j + 1) % 3;
-          vertex.fromBufferAttribute(position, index2);
-          vertices.push(vertex.x, vertex.y, vertex.z);
-        }
-      }
-    } // build geometry
-
-
-    this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-  }
-
-}
-
-exports.WireframeGeometry = WireframeGeometry;
-var Geometries =
-/*#__PURE__*/
-Object.freeze({
-  __proto__: null,
-  BoxGeometry: BoxGeometry,
-  BoxBufferGeometry: BoxGeometry,
-  CircleGeometry: CircleGeometry,
-  CircleBufferGeometry: CircleGeometry,
-  ConeGeometry: ConeGeometry,
-  ConeBufferGeometry: ConeGeometry,
-  CylinderGeometry: CylinderGeometry,
-  CylinderBufferGeometry: CylinderGeometry,
-  DodecahedronGeometry: DodecahedronGeometry,
-  DodecahedronBufferGeometry: DodecahedronGeometry,
-  EdgesGeometry: EdgesGeometry,
-  ExtrudeGeometry: ExtrudeGeometry,
-  ExtrudeBufferGeometry: ExtrudeGeometry,
-  IcosahedronGeometry: IcosahedronGeometry,
-  IcosahedronBufferGeometry: IcosahedronGeometry,
-  LatheGeometry: LatheGeometry,
-  LatheBufferGeometry: LatheGeometry,
-  OctahedronGeometry: OctahedronGeometry,
-  OctahedronBufferGeometry: OctahedronGeometry,
-  ParametricGeometry: ParametricGeometry,
-  ParametricBufferGeometry: ParametricGeometry,
-  PlaneGeometry: PlaneGeometry,
-  PlaneBufferGeometry: PlaneGeometry,
-  PolyhedronGeometry: PolyhedronGeometry,
-  PolyhedronBufferGeometry: PolyhedronGeometry,
-  RingGeometry: RingGeometry,
-  RingBufferGeometry: RingGeometry,
-  ShapeGeometry: ShapeGeometry,
-  ShapeBufferGeometry: ShapeGeometry,
-  SphereGeometry: SphereGeometry,
-  SphereBufferGeometry: SphereGeometry,
-  TetrahedronGeometry: TetrahedronGeometry,
-  TetrahedronBufferGeometry: TetrahedronGeometry,
-  TextGeometry: TextGeometry,
-  TextBufferGeometry: TextGeometry,
-  TorusGeometry: TorusGeometry,
-  TorusBufferGeometry: TorusGeometry,
-  TorusKnotGeometry: TorusKnotGeometry,
-  TorusKnotBufferGeometry: TorusKnotGeometry,
-  TubeGeometry: TubeGeometry,
-  TubeBufferGeometry: TubeGeometry,
-  WireframeGeometry: WireframeGeometry
-});
-/**
- * parameters = {
- *  color: <THREE.Color>
- * }
- */
-
-class ShadowMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'ShadowMaterial';
-    this.color = new Color(0x000000);
-    this.transparent = true;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.color.copy(source.color);
-    return this;
-  }
-
-}
-
-exports.ShadowMaterial = ShadowMaterial;
-ShadowMaterial.prototype.isShadowMaterial = true;
-
-class RawShaderMaterial extends ShaderMaterial {
-  constructor(parameters) {
-    super(parameters);
-    this.type = 'RawShaderMaterial';
-  }
-
-}
-
-exports.RawShaderMaterial = RawShaderMaterial;
-RawShaderMaterial.prototype.isRawShaderMaterial = true;
-/**
- * parameters = {
- *  color: <hex>,
- *  roughness: <float>,
- *  metalness: <float>,
- *  opacity: <float>,
- *
- *  map: new THREE.Texture( <Image> ),
- *
- *  lightMap: new THREE.Texture( <Image> ),
- *  lightMapIntensity: <float>
- *
- *  aoMap: new THREE.Texture( <Image> ),
- *  aoMapIntensity: <float>
- *
- *  emissive: <hex>,
- *  emissiveIntensity: <float>
- *  emissiveMap: new THREE.Texture( <Image> ),
- *
- *  bumpMap: new THREE.Texture( <Image> ),
- *  bumpScale: <float>,
- *
- *  normalMap: new THREE.Texture( <Image> ),
- *  normalMapType: THREE.TangentSpaceNormalMap,
- *  normalScale: <Vector2>,
- *
- *  displacementMap: new THREE.Texture( <Image> ),
- *  displacementScale: <float>,
- *  displacementBias: <float>,
- *
- *  roughnessMap: new THREE.Texture( <Image> ),
- *
- *  metalnessMap: new THREE.Texture( <Image> ),
- *
- *  alphaMap: new THREE.Texture( <Image> ),
- *
- *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
- *  envMapIntensity: <float>
- *
- *  refractionRatio: <float>,
- *
- *  wireframe: <boolean>,
- *  wireframeLinewidth: <float>,
- *
- *  skinning: <bool>,
- *  morphTargets: <bool>,
- *  morphNormals: <bool>,
- *
- *  flatShading: <bool>
- * }
- */
-
-function MeshStandardMaterial(parameters) {
-  Material.call(this);
-  this.defines = {
-    'STANDARD': ''
-  };
-  this.type = 'MeshStandardMaterial';
-  this.color = new Color(0xffffff); // diffuse
-
-  this.roughness = 1.0;
-  this.metalness = 0.0;
-  this.map = null;
-  this.lightMap = null;
-  this.lightMapIntensity = 1.0;
-  this.aoMap = null;
-  this.aoMapIntensity = 1.0;
-  this.emissive = new Color(0x000000);
-  this.emissiveIntensity = 1.0;
-  this.emissiveMap = null;
-  this.bumpMap = null;
-  this.bumpScale = 1;
-  this.normalMap = null;
-  this.normalMapType = TangentSpaceNormalMap;
-  this.normalScale = new Vector2(1, 1);
-  this.displacementMap = null;
-  this.displacementScale = 1;
-  this.displacementBias = 0;
-  this.roughnessMap = null;
-  this.metalnessMap = null;
-  this.alphaMap = null;
-  this.envMap = null;
-  this.envMapIntensity = 1.0;
-  this.refractionRatio = 0.98;
-  this.wireframe = false;
-  this.wireframeLinewidth = 1;
-  this.wireframeLinecap = 'round';
-  this.wireframeLinejoin = 'round';
-  this.skinning = false;
-  this.morphTargets = false;
-  this.morphNormals = false;
-  this.flatShading = false;
-  this.vertexTangents = false;
-  this.setValues(parameters);
-}
-
-MeshStandardMaterial.prototype = Object.create(Material.prototype);
-MeshStandardMaterial.prototype.constructor = MeshStandardMaterial;
-MeshStandardMaterial.prototype.isMeshStandardMaterial = true;
-
-MeshStandardMaterial.prototype.copy = function (source) {
-  Material.prototype.copy.call(this, source);
-  this.defines = {
-    'STANDARD': ''
-  };
-  this.color.copy(source.color);
-  this.roughness = source.roughness;
-  this.metalness = source.metalness;
-  this.map = source.map;
-  this.lightMap = source.lightMap;
-  this.lightMapIntensity = source.lightMapIntensity;
-  this.aoMap = source.aoMap;
-  this.aoMapIntensity = source.aoMapIntensity;
-  this.emissive.copy(source.emissive);
-  this.emissiveMap = source.emissiveMap;
-  this.emissiveIntensity = source.emissiveIntensity;
-  this.bumpMap = source.bumpMap;
-  this.bumpScale = source.bumpScale;
-  this.normalMap = source.normalMap;
-  this.normalMapType = source.normalMapType;
-  this.normalScale.copy(source.normalScale);
-  this.displacementMap = source.displacementMap;
-  this.displacementScale = source.displacementScale;
-  this.displacementBias = source.displacementBias;
-  this.roughnessMap = source.roughnessMap;
-  this.metalnessMap = source.metalnessMap;
-  this.alphaMap = source.alphaMap;
-  this.envMap = source.envMap;
-  this.envMapIntensity = source.envMapIntensity;
-  this.refractionRatio = source.refractionRatio;
-  this.wireframe = source.wireframe;
-  this.wireframeLinewidth = source.wireframeLinewidth;
-  this.wireframeLinecap = source.wireframeLinecap;
-  this.wireframeLinejoin = source.wireframeLinejoin;
-  this.skinning = source.skinning;
-  this.morphTargets = source.morphTargets;
-  this.morphNormals = source.morphNormals;
-  this.flatShading = source.flatShading;
-  this.vertexTangents = source.vertexTangents;
-  return this;
-};
-/**
- * parameters = {
- *  clearcoat: <float>,
- *  clearcoatMap: new THREE.Texture( <Image> ),
- *  clearcoatRoughness: <float>,
- *  clearcoatRoughnessMap: new THREE.Texture( <Image> ),
- *  clearcoatNormalScale: <Vector2>,
- *  clearcoatNormalMap: new THREE.Texture( <Image> ),
- *
- *  reflectivity: <float>,
- *  ior: <float>,
- *
- *  sheen: <Color>,
- *
- *  transmission: <float>,
- *  transmissionMap: new THREE.Texture( <Image> )
- * }
- */
-
-
-function MeshPhysicalMaterial(parameters) {
-  MeshStandardMaterial.call(this);
-  this.defines = {
-    'STANDARD': '',
-    'PHYSICAL': ''
-  };
-  this.type = 'MeshPhysicalMaterial';
-  this.clearcoat = 0.0;
-  this.clearcoatMap = null;
-  this.clearcoatRoughness = 0.0;
-  this.clearcoatRoughnessMap = null;
-  this.clearcoatNormalScale = new Vector2(1, 1);
-  this.clearcoatNormalMap = null;
-  this.reflectivity = 0.5; // maps to F0 = 0.04
-
-  Object.defineProperty(this, 'ior', {
-    get: function () {
-      return (1 + 0.4 * this.reflectivity) / (1 - 0.4 * this.reflectivity);
-    },
-    set: function (ior) {
-      this.reflectivity = MathUtils.clamp(2.5 * (ior - 1) / (ior + 1), 0, 1);
-    }
-  });
-  this.sheen = null; // null will disable sheen bsdf
-
-  this.transmission = 0.0;
-  this.transmissionMap = null;
-  this.setValues(parameters);
-}
-
-MeshPhysicalMaterial.prototype = Object.create(MeshStandardMaterial.prototype);
-MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;
-MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;
-
-MeshPhysicalMaterial.prototype.copy = function (source) {
-  MeshStandardMaterial.prototype.copy.call(this, source);
-  this.defines = {
-    'STANDARD': '',
-    'PHYSICAL': ''
-  };
-  this.clearcoat = source.clearcoat;
-  this.clearcoatMap = source.clearcoatMap;
-  this.clearcoatRoughness = source.clearcoatRoughness;
-  this.clearcoatRoughnessMap = source.clearcoatRoughnessMap;
-  this.clearcoatNormalMap = source.clearcoatNormalMap;
-  this.clearcoatNormalScale.copy(source.clearcoatNormalScale);
-  this.reflectivity = source.reflectivity;
-
-  if (source.sheen) {
-    this.sheen = (this.sheen || new Color()).copy(source.sheen);
-  } else {
-    this.sheen = null;
-  }
-
-  this.transmission = source.transmission;
-  this.transmissionMap = source.transmissionMap;
-  return this;
-};
-/**
- * parameters = {
- *  color: <hex>,
- *  specular: <hex>,
- *  shininess: <float>,
- *  opacity: <float>,
- *
- *  map: new THREE.Texture( <Image> ),
- *
- *  lightMap: new THREE.Texture( <Image> ),
- *  lightMapIntensity: <float>
- *
- *  aoMap: new THREE.Texture( <Image> ),
- *  aoMapIntensity: <float>
- *
- *  emissive: <hex>,
- *  emissiveIntensity: <float>
- *  emissiveMap: new THREE.Texture( <Image> ),
- *
- *  bumpMap: new THREE.Texture( <Image> ),
- *  bumpScale: <float>,
- *
- *  normalMap: new THREE.Texture( <Image> ),
- *  normalMapType: THREE.TangentSpaceNormalMap,
- *  normalScale: <Vector2>,
- *
- *  displacementMap: new THREE.Texture( <Image> ),
- *  displacementScale: <float>,
- *  displacementBias: <float>,
- *
- *  specularMap: new THREE.Texture( <Image> ),
- *
- *  alphaMap: new THREE.Texture( <Image> ),
- *
- *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
- *  combine: THREE.MultiplyOperation,
- *  reflectivity: <float>,
- *  refractionRatio: <float>,
- *
- *  wireframe: <boolean>,
- *  wireframeLinewidth: <float>,
- *
- *  skinning: <bool>,
- *  morphTargets: <bool>,
- *  morphNormals: <bool>,
- *
- *  flatShading: <bool>
- * }
- */
-
-
-class MeshPhongMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'MeshPhongMaterial';
-    this.color = new Color(0xffffff); // diffuse
-
-    this.specular = new Color(0x111111);
-    this.shininess = 30;
-    this.map = null;
-    this.lightMap = null;
-    this.lightMapIntensity = 1.0;
-    this.aoMap = null;
-    this.aoMapIntensity = 1.0;
-    this.emissive = new Color(0x000000);
-    this.emissiveIntensity = 1.0;
-    this.emissiveMap = null;
-    this.bumpMap = null;
-    this.bumpScale = 1;
-    this.normalMap = null;
-    this.normalMapType = TangentSpaceNormalMap;
-    this.normalScale = new Vector2(1, 1);
-    this.displacementMap = null;
-    this.displacementScale = 1;
-    this.displacementBias = 0;
-    this.specularMap = null;
-    this.alphaMap = null;
-    this.envMap = null;
-    this.combine = MultiplyOperation;
-    this.reflectivity = 1;
-    this.refractionRatio = 0.98;
-    this.wireframe = false;
-    this.wireframeLinewidth = 1;
-    this.wireframeLinecap = 'round';
-    this.wireframeLinejoin = 'round';
-    this.skinning = false;
-    this.morphTargets = false;
-    this.morphNormals = false;
-    this.flatShading = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.color.copy(source.color);
-    this.specular.copy(source.specular);
-    this.shininess = source.shininess;
-    this.map = source.map;
-    this.lightMap = source.lightMap;
-    this.lightMapIntensity = source.lightMapIntensity;
-    this.aoMap = source.aoMap;
-    this.aoMapIntensity = source.aoMapIntensity;
-    this.emissive.copy(source.emissive);
-    this.emissiveMap = source.emissiveMap;
-    this.emissiveIntensity = source.emissiveIntensity;
-    this.bumpMap = source.bumpMap;
-    this.bumpScale = source.bumpScale;
-    this.normalMap = source.normalMap;
-    this.normalMapType = source.normalMapType;
-    this.normalScale.copy(source.normalScale);
-    this.displacementMap = source.displacementMap;
-    this.displacementScale = source.displacementScale;
-    this.displacementBias = source.displacementBias;
-    this.specularMap = source.specularMap;
-    this.alphaMap = source.alphaMap;
-    this.envMap = source.envMap;
-    this.combine = source.combine;
-    this.reflectivity = source.reflectivity;
-    this.refractionRatio = source.refractionRatio;
-    this.wireframe = source.wireframe;
-    this.wireframeLinewidth = source.wireframeLinewidth;
-    this.wireframeLinecap = source.wireframeLinecap;
-    this.wireframeLinejoin = source.wireframeLinejoin;
-    this.skinning = source.skinning;
-    this.morphTargets = source.morphTargets;
-    this.morphNormals = source.morphNormals;
-    this.flatShading = source.flatShading;
-    return this;
-  }
-
-}
-
-exports.MeshPhongMaterial = MeshPhongMaterial;
-MeshPhongMaterial.prototype.isMeshPhongMaterial = true;
-/**
- * parameters = {
- *  color: <hex>,
- *
- *  map: new THREE.Texture( <Image> ),
- *  gradientMap: new THREE.Texture( <Image> ),
- *
- *  lightMap: new THREE.Texture( <Image> ),
- *  lightMapIntensity: <float>
- *
- *  aoMap: new THREE.Texture( <Image> ),
- *  aoMapIntensity: <float>
- *
- *  emissive: <hex>,
- *  emissiveIntensity: <float>
- *  emissiveMap: new THREE.Texture( <Image> ),
- *
- *  bumpMap: new THREE.Texture( <Image> ),
- *  bumpScale: <float>,
- *
- *  normalMap: new THREE.Texture( <Image> ),
- *  normalMapType: THREE.TangentSpaceNormalMap,
- *  normalScale: <Vector2>,
- *
- *  displacementMap: new THREE.Texture( <Image> ),
- *  displacementScale: <float>,
- *  displacementBias: <float>,
- *
- *  alphaMap: new THREE.Texture( <Image> ),
- *
- *  wireframe: <boolean>,
- *  wireframeLinewidth: <float>,
- *
- *  skinning: <bool>,
- *  morphTargets: <bool>,
- *  morphNormals: <bool>
- * }
- */
-
-class MeshToonMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.defines = {
-      'TOON': ''
-    };
-    this.type = 'MeshToonMaterial';
-    this.color = new Color(0xffffff);
-    this.map = null;
-    this.gradientMap = null;
-    this.lightMap = null;
-    this.lightMapIntensity = 1.0;
-    this.aoMap = null;
-    this.aoMapIntensity = 1.0;
-    this.emissive = new Color(0x000000);
-    this.emissiveIntensity = 1.0;
-    this.emissiveMap = null;
-    this.bumpMap = null;
-    this.bumpScale = 1;
-    this.normalMap = null;
-    this.normalMapType = TangentSpaceNormalMap;
-    this.normalScale = new Vector2(1, 1);
-    this.displacementMap = null;
-    this.displacementScale = 1;
-    this.displacementBias = 0;
-    this.alphaMap = null;
-    this.wireframe = false;
-    this.wireframeLinewidth = 1;
-    this.wireframeLinecap = 'round';
-    this.wireframeLinejoin = 'round';
-    this.skinning = false;
-    this.morphTargets = false;
-    this.morphNormals = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.color.copy(source.color);
-    this.map = source.map;
-    this.gradientMap = source.gradientMap;
-    this.lightMap = source.lightMap;
-    this.lightMapIntensity = source.lightMapIntensity;
-    this.aoMap = source.aoMap;
-    this.aoMapIntensity = source.aoMapIntensity;
-    this.emissive.copy(source.emissive);
-    this.emissiveMap = source.emissiveMap;
-    this.emissiveIntensity = source.emissiveIntensity;
-    this.bumpMap = source.bumpMap;
-    this.bumpScale = source.bumpScale;
-    this.normalMap = source.normalMap;
-    this.normalMapType = source.normalMapType;
-    this.normalScale.copy(source.normalScale);
-    this.displacementMap = source.displacementMap;
-    this.displacementScale = source.displacementScale;
-    this.displacementBias = source.displacementBias;
-    this.alphaMap = source.alphaMap;
-    this.wireframe = source.wireframe;
-    this.wireframeLinewidth = source.wireframeLinewidth;
-    this.wireframeLinecap = source.wireframeLinecap;
-    this.wireframeLinejoin = source.wireframeLinejoin;
-    this.skinning = source.skinning;
-    this.morphTargets = source.morphTargets;
-    this.morphNormals = source.morphNormals;
-    return this;
-  }
-
-}
-
-exports.MeshToonMaterial = MeshToonMaterial;
-MeshToonMaterial.prototype.isMeshToonMaterial = true;
-/**
- * parameters = {
- *  opacity: <float>,
- *
- *  bumpMap: new THREE.Texture( <Image> ),
- *  bumpScale: <float>,
- *
- *  normalMap: new THREE.Texture( <Image> ),
- *  normalMapType: THREE.TangentSpaceNormalMap,
- *  normalScale: <Vector2>,
- *
- *  displacementMap: new THREE.Texture( <Image> ),
- *  displacementScale: <float>,
- *  displacementBias: <float>,
- *
- *  wireframe: <boolean>,
- *  wireframeLinewidth: <float>
- *
- *  skinning: <bool>,
- *  morphTargets: <bool>,
- *  morphNormals: <bool>,
- *
- *  flatShading: <bool>
- * }
- */
-
-class MeshNormalMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'MeshNormalMaterial';
-    this.bumpMap = null;
-    this.bumpScale = 1;
-    this.normalMap = null;
-    this.normalMapType = TangentSpaceNormalMap;
-    this.normalScale = new Vector2(1, 1);
-    this.displacementMap = null;
-    this.displacementScale = 1;
-    this.displacementBias = 0;
-    this.wireframe = false;
-    this.wireframeLinewidth = 1;
-    this.fog = false;
-    this.skinning = false;
-    this.morphTargets = false;
-    this.morphNormals = false;
-    this.flatShading = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.bumpMap = source.bumpMap;
-    this.bumpScale = source.bumpScale;
-    this.normalMap = source.normalMap;
-    this.normalMapType = source.normalMapType;
-    this.normalScale.copy(source.normalScale);
-    this.displacementMap = source.displacementMap;
-    this.displacementScale = source.displacementScale;
-    this.displacementBias = source.displacementBias;
-    this.wireframe = source.wireframe;
-    this.wireframeLinewidth = source.wireframeLinewidth;
-    this.skinning = source.skinning;
-    this.morphTargets = source.morphTargets;
-    this.morphNormals = source.morphNormals;
-    this.flatShading = source.flatShading;
-    return this;
-  }
-
-}
-
-exports.MeshNormalMaterial = MeshNormalMaterial;
-MeshNormalMaterial.prototype.isMeshNormalMaterial = true;
-/**
- * parameters = {
- *  color: <hex>,
- *  opacity: <float>,
- *
- *  map: new THREE.Texture( <Image> ),
- *
- *  lightMap: new THREE.Texture( <Image> ),
- *  lightMapIntensity: <float>
- *
- *  aoMap: new THREE.Texture( <Image> ),
- *  aoMapIntensity: <float>
- *
- *  emissive: <hex>,
- *  emissiveIntensity: <float>
- *  emissiveMap: new THREE.Texture( <Image> ),
- *
- *  specularMap: new THREE.Texture( <Image> ),
- *
- *  alphaMap: new THREE.Texture( <Image> ),
- *
- *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
- *  combine: THREE.Multiply,
- *  reflectivity: <float>,
- *  refractionRatio: <float>,
- *
- *  wireframe: <boolean>,
- *  wireframeLinewidth: <float>,
- *
- *  skinning: <bool>,
- *  morphTargets: <bool>,
- *  morphNormals: <bool>
- * }
- */
-
-class MeshLambertMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.type = 'MeshLambertMaterial';
-    this.color = new Color(0xffffff); // diffuse
-
-    this.map = null;
-    this.lightMap = null;
-    this.lightMapIntensity = 1.0;
-    this.aoMap = null;
-    this.aoMapIntensity = 1.0;
-    this.emissive = new Color(0x000000);
-    this.emissiveIntensity = 1.0;
-    this.emissiveMap = null;
-    this.specularMap = null;
-    this.alphaMap = null;
-    this.envMap = null;
-    this.combine = MultiplyOperation;
-    this.reflectivity = 1;
-    this.refractionRatio = 0.98;
-    this.wireframe = false;
-    this.wireframeLinewidth = 1;
-    this.wireframeLinecap = 'round';
-    this.wireframeLinejoin = 'round';
-    this.skinning = false;
-    this.morphTargets = false;
-    this.morphNormals = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.color.copy(source.color);
-    this.map = source.map;
-    this.lightMap = source.lightMap;
-    this.lightMapIntensity = source.lightMapIntensity;
-    this.aoMap = source.aoMap;
-    this.aoMapIntensity = source.aoMapIntensity;
-    this.emissive.copy(source.emissive);
-    this.emissiveMap = source.emissiveMap;
-    this.emissiveIntensity = source.emissiveIntensity;
-    this.specularMap = source.specularMap;
-    this.alphaMap = source.alphaMap;
-    this.envMap = source.envMap;
-    this.combine = source.combine;
-    this.reflectivity = source.reflectivity;
-    this.refractionRatio = source.refractionRatio;
-    this.wireframe = source.wireframe;
-    this.wireframeLinewidth = source.wireframeLinewidth;
-    this.wireframeLinecap = source.wireframeLinecap;
-    this.wireframeLinejoin = source.wireframeLinejoin;
-    this.skinning = source.skinning;
-    this.morphTargets = source.morphTargets;
-    this.morphNormals = source.morphNormals;
-    return this;
-  }
-
-}
-
-exports.MeshLambertMaterial = MeshLambertMaterial;
-MeshLambertMaterial.prototype.isMeshLambertMaterial = true;
-/**
- * parameters = {
- *  color: <hex>,
- *  opacity: <float>,
- *
- *  matcap: new THREE.Texture( <Image> ),
- *
- *  map: new THREE.Texture( <Image> ),
- *
- *  bumpMap: new THREE.Texture( <Image> ),
- *  bumpScale: <float>,
- *
- *  normalMap: new THREE.Texture( <Image> ),
- *  normalMapType: THREE.TangentSpaceNormalMap,
- *  normalScale: <Vector2>,
- *
- *  displacementMap: new THREE.Texture( <Image> ),
- *  displacementScale: <float>,
- *  displacementBias: <float>,
- *
- *  alphaMap: new THREE.Texture( <Image> ),
- *
- *  skinning: <bool>,
- *  morphTargets: <bool>,
- *  morphNormals: <bool>
- *
- *  flatShading: <bool>
- * }
- */
-
-class MeshMatcapMaterial extends Material {
-  constructor(parameters) {
-    super();
-    this.defines = {
-      'MATCAP': ''
-    };
-    this.type = 'MeshMatcapMaterial';
-    this.color = new Color(0xffffff); // diffuse
-
-    this.matcap = null;
-    this.map = null;
-    this.bumpMap = null;
-    this.bumpScale = 1;
-    this.normalMap = null;
-    this.normalMapType = TangentSpaceNormalMap;
-    this.normalScale = new Vector2(1, 1);
-    this.displacementMap = null;
-    this.displacementScale = 1;
-    this.displacementBias = 0;
-    this.alphaMap = null;
-    this.skinning = false;
-    this.morphTargets = false;
-    this.morphNormals = false;
-    this.flatShading = false;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.defines = {
-      'MATCAP': ''
-    };
-    this.color.copy(source.color);
-    this.matcap = source.matcap;
-    this.map = source.map;
-    this.bumpMap = source.bumpMap;
-    this.bumpScale = source.bumpScale;
-    this.normalMap = source.normalMap;
-    this.normalMapType = source.normalMapType;
-    this.normalScale.copy(source.normalScale);
-    this.displacementMap = source.displacementMap;
-    this.displacementScale = source.displacementScale;
-    this.displacementBias = source.displacementBias;
-    this.alphaMap = source.alphaMap;
-    this.skinning = source.skinning;
-    this.morphTargets = source.morphTargets;
-    this.morphNormals = source.morphNormals;
-    this.flatShading = source.flatShading;
-    return this;
-  }
-
-}
-
-exports.MeshMatcapMaterial = MeshMatcapMaterial;
-MeshMatcapMaterial.prototype.isMeshMatcapMaterial = true;
-/**
- * parameters = {
- *  color: <hex>,
- *  opacity: <float>,
- *
- *  linewidth: <float>,
- *
- *  scale: <float>,
- *  dashSize: <float>,
- *  gapSize: <float>
- * }
- */
-
-class LineDashedMaterial extends LineBasicMaterial {
-  constructor(parameters) {
-    super();
-    this.type = 'LineDashedMaterial';
-    this.scale = 1;
-    this.dashSize = 3;
-    this.gapSize = 1;
-    this.setValues(parameters);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.scale = source.scale;
-    this.dashSize = source.dashSize;
-    this.gapSize = source.gapSize;
-    return this;
-  }
-
-}
-
-exports.LineDashedMaterial = LineDashedMaterial;
-LineDashedMaterial.prototype.isLineDashedMaterial = true;
-var Materials =
-/*#__PURE__*/
-Object.freeze({
-  __proto__: null,
-  ShadowMaterial: ShadowMaterial,
-  SpriteMaterial: SpriteMaterial,
-  RawShaderMaterial: RawShaderMaterial,
-  ShaderMaterial: ShaderMaterial,
-  PointsMaterial: PointsMaterial,
-  MeshPhysicalMaterial: MeshPhysicalMaterial,
-  MeshStandardMaterial: MeshStandardMaterial,
-  MeshPhongMaterial: MeshPhongMaterial,
-  MeshToonMaterial: MeshToonMaterial,
-  MeshNormalMaterial: MeshNormalMaterial,
-  MeshLambertMaterial: MeshLambertMaterial,
-  MeshDepthMaterial: MeshDepthMaterial,
-  MeshDistanceMaterial: MeshDistanceMaterial,
-  MeshBasicMaterial: MeshBasicMaterial,
-  MeshMatcapMaterial: MeshMatcapMaterial,
-  LineDashedMaterial: LineDashedMaterial,
-  LineBasicMaterial: LineBasicMaterial,
-  Material: Material
-});
-const AnimationUtils = {
-  // same as Array.prototype.slice, but also works on typed arrays
-  arraySlice: function (array, from, to) {
-    if (AnimationUtils.isTypedArray(array)) {
-      // in ios9 array.subarray(from, undefined) will return empty array
-      // but array.subarray(from) or array.subarray(from, len) is correct
-      return new array.constructor(array.subarray(from, to !== undefined ? to : array.length));
-    }
-
-    return array.slice(from, to);
-  },
-  // converts an array to a specific type
-  convertArray: function (array, type, forceClone) {
-    if (!array || // let 'undefined' and 'null' pass
-    !forceClone && array.constructor === type) return array;
-
-    if (typeof type.BYTES_PER_ELEMENT === 'number') {
-      return new type(array); // create typed array
-    }
-
-    return Array.prototype.slice.call(array); // create Array
-  },
-  isTypedArray: function (object) {
-    return ArrayBuffer.isView(object) && !(object instanceof DataView);
-  },
-  // returns an array by which times and values can be sorted
-  getKeyframeOrder: function (times) {
-    function compareTime(i, j) {
-      return times[i] - times[j];
-    }
-
-    const n = times.length;
-    const result = new Array(n);
-
-    for (let i = 0; i !== n; ++i) result[i] = i;
-
-    result.sort(compareTime);
-    return result;
-  },
-  // uses the array previously returned by 'getKeyframeOrder' to sort data
-  sortedArray: function (values, stride, order) {
-    const nValues = values.length;
-    const result = new values.constructor(nValues);
-
-    for (let i = 0, dstOffset = 0; dstOffset !== nValues; ++i) {
-      const srcOffset = order[i] * stride;
-
-      for (let j = 0; j !== stride; ++j) {
-        result[dstOffset++] = values[srcOffset + j];
-      }
-    }
-
-    return result;
-  },
-  // function for parsing AOS keyframe formats
-  flattenJSON: function (jsonKeys, times, values, valuePropertyName) {
-    let i = 1,
-        key = jsonKeys[0];
-
-    while (key !== undefined && key[valuePropertyName] === undefined) {
-      key = jsonKeys[i++];
-    }
-
-    if (key === undefined) return; // no data
-
-    let value = key[valuePropertyName];
-    if (value === undefined) return; // no data
-
-    if (Array.isArray(value)) {
-      do {
-        value = key[valuePropertyName];
-
-        if (value !== undefined) {
-          times.push(key.time);
-          values.push.apply(values, value); // push all elements
-        }
-
-        key = jsonKeys[i++];
-      } while (key !== undefined);
-    } else if (value.toArray !== undefined) {
-      // ...assume THREE.Math-ish
-      do {
-        value = key[valuePropertyName];
-
-        if (value !== undefined) {
-          times.push(key.time);
-          value.toArray(values, values.length);
-        }
-
-        key = jsonKeys[i++];
-      } while (key !== undefined);
-    } else {
-      // otherwise push as-is
-      do {
-        value = key[valuePropertyName];
-
-        if (value !== undefined) {
-          times.push(key.time);
-          values.push(value);
-        }
-
-        key = jsonKeys[i++];
-      } while (key !== undefined);
-    }
-  },
-  subclip: function (sourceClip, name, startFrame, endFrame, fps = 30) {
-    const clip = sourceClip.clone();
-    clip.name = name;
-    const tracks = [];
-
-    for (let i = 0; i < clip.tracks.length; ++i) {
-      const track = clip.tracks[i];
-      const valueSize = track.getValueSize();
-      const times = [];
-      const values = [];
-
-      for (let j = 0; j < track.times.length; ++j) {
-        const frame = track.times[j] * fps;
-        if (frame < startFrame || frame >= endFrame) continue;
-        times.push(track.times[j]);
-
-        for (let k = 0; k < valueSize; ++k) {
-          values.push(track.values[j * valueSize + k]);
-        }
-      }
-
-      if (times.length === 0) continue;
-      track.times = AnimationUtils.convertArray(times, track.times.constructor);
-      track.values = AnimationUtils.convertArray(values, track.values.constructor);
-      tracks.push(track);
-    }
-
-    clip.tracks = tracks; // find minimum .times value across all tracks in the trimmed clip
-
-    let minStartTime = Infinity;
-
-    for (let i = 0; i < clip.tracks.length; ++i) {
-      if (minStartTime > clip.tracks[i].times[0]) {
-        minStartTime = clip.tracks[i].times[0];
-      }
-    } // shift all tracks such that clip begins at t=0
-
-
-    for (let i = 0; i < clip.tracks.length; ++i) {
-      clip.tracks[i].shift(-1 * minStartTime);
-    }
-
-    clip.resetDuration();
-    return clip;
-  },
-  makeClipAdditive: function (targetClip, referenceFrame = 0, referenceClip = targetClip, fps = 30) {
-    if (fps <= 0) fps = 30;
-    const numTracks = referenceClip.tracks.length;
-    const referenceTime = referenceFrame / fps; // Make each track's values relative to the values at the reference frame
-
-    for (let i = 0; i < numTracks; ++i) {
-      const referenceTrack = referenceClip.tracks[i];
-      const referenceTrackType = referenceTrack.ValueTypeName; // Skip this track if it's non-numeric
-
-      if (referenceTrackType === 'bool' || referenceTrackType === 'string') continue; // Find the track in the target clip whose name and type matches the reference track
-
-      const targetTrack = targetClip.tracks.find(function (track) {
-        return track.name === referenceTrack.name && track.ValueTypeName === referenceTrackType;
-      });
-      if (targetTrack === undefined) continue;
-      let referenceOffset = 0;
-      const referenceValueSize = referenceTrack.getValueSize();
-
-      if (referenceTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline) {
-        referenceOffset = referenceValueSize / 3;
-      }
-
-      let targetOffset = 0;
-      const targetValueSize = targetTrack.getValueSize();
-
-      if (targetTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline) {
-        targetOffset = targetValueSize / 3;
-      }
-
-      const lastIndex = referenceTrack.times.length - 1;
-      let referenceValue; // Find the value to subtract out of the track
-
-      if (referenceTime <= referenceTrack.times[0]) {
-        // Reference frame is earlier than the first keyframe, so just use the first keyframe
-        const startIndex = referenceOffset;
-        const endIndex = referenceValueSize - referenceOffset;
-        referenceValue = AnimationUtils.arraySlice(referenceTrack.values, startIndex, endIndex);
-      } else if (referenceTime >= referenceTrack.times[lastIndex]) {
-        // Reference frame is after the last keyframe, so just use the last keyframe
-        const startIndex = lastIndex * referenceValueSize + referenceOffset;
-        const endIndex = startIndex + referenceValueSize - referenceOffset;
-        referenceValue = AnimationUtils.arraySlice(referenceTrack.values, startIndex, endIndex);
-      } else {
-        // Interpolate to the reference value
-        const interpolant = referenceTrack.createInterpolant();
-        const startIndex = referenceOffset;
-        const endIndex = referenceValueSize - referenceOffset;
-        interpolant.evaluate(referenceTime);
-        referenceValue = AnimationUtils.arraySlice(interpolant.resultBuffer, startIndex, endIndex);
-      } // Conjugate the quaternion
-
-
-      if (referenceTrackType === 'quaternion') {
-        const referenceQuat = new Quaternion().fromArray(referenceValue).normalize().conjugate();
-        referenceQuat.toArray(referenceValue);
-      } // Subtract the reference value from all of the track values
-
-
-      const numTimes = targetTrack.times.length;
-
-      for (let j = 0; j < numTimes; ++j) {
-        const valueStart = j * targetValueSize + targetOffset;
-
-        if (referenceTrackType === 'quaternion') {
-          // Multiply the conjugate for quaternion track types
-          Quaternion.multiplyQuaternionsFlat(targetTrack.values, valueStart, referenceValue, 0, targetTrack.values, valueStart);
-        } else {
-          const valueEnd = targetValueSize - targetOffset * 2; // Subtract each value for all other numeric track types
-
-          for (let k = 0; k < valueEnd; ++k) {
-            targetTrack.values[valueStart + k] -= referenceValue[k];
-          }
-        }
-      }
-    }
-
-    targetClip.blendMode = AdditiveAnimationBlendMode;
-    return targetClip;
-  }
-};
-/**
- * Abstract base class of interpolants over parametric samples.
- *
- * The parameter domain is one dimensional, typically the time or a path
- * along a curve defined by the data.
- *
- * The sample values can have any dimensionality and derived classes may
- * apply special interpretations to the data.
- *
- * This class provides the interval seek in a Template Method, deferring
- * the actual interpolation to derived classes.
- *
- * Time complexity is O(1) for linear access crossing at most two points
- * and O(log N) for random access, where N is the number of positions.
- *
- * References:
- *
- * 		http://www.oodesign.com/template-method-pattern.html
- *
- */
-
-exports.AnimationUtils = AnimationUtils;
-
-function Interpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
-  this.parameterPositions = parameterPositions;
-  this._cachedIndex = 0;
-  this.resultBuffer = resultBuffer !== undefined ? resultBuffer : new sampleValues.constructor(sampleSize);
-  this.sampleValues = sampleValues;
-  this.valueSize = sampleSize;
-}
-
-Object.assign(Interpolant.prototype, {
-  evaluate: function (t) {
-    const pp = this.parameterPositions;
-    let i1 = this._cachedIndex,
-        t1 = pp[i1],
-        t0 = pp[i1 - 1];
-
-    validate_interval: {
-      seek: {
-        let right;
-
-        linear_scan: {
-          //- See http://jsperf.com/comparison-to-undefined/3
-          //- slower code:
-          //-
-          //- 				if ( t >= t1 || t1 === undefined ) {
-          forward_scan: if (!(t < t1)) {
-            for (let giveUpAt = i1 + 2;;) {
-              if (t1 === undefined) {
-                if (t < t0) break forward_scan; // after end
-
-                i1 = pp.length;
-                this._cachedIndex = i1;
-                return this.afterEnd_(i1 - 1, t, t0);
-              }
-
-              if (i1 === giveUpAt) break; // this loop
-
-              t0 = t1;
-              t1 = pp[++i1];
-
-              if (t < t1) {
-                // we have arrived at the sought interval
-                break seek;
-              }
-            } // prepare binary search on the right side of the index
-
-
-            right = pp.length;
-            break linear_scan;
-          } //- slower code:
-          //-					if ( t < t0 || t0 === undefined ) {
-
-
-          if (!(t >= t0)) {
-            // looping?
-            const t1global = pp[1];
-
-            if (t < t1global) {
-              i1 = 2; // + 1, using the scan for the details
-
-              t0 = t1global;
-            } // linear reverse scan
-
-
-            for (let giveUpAt = i1 - 2;;) {
-              if (t0 === undefined) {
-                // before start
-                this._cachedIndex = 0;
-                return this.beforeStart_(0, t, t1);
-              }
-
-              if (i1 === giveUpAt) break; // this loop
-
-              t1 = t0;
-              t0 = pp[--i1 - 1];
-
-              if (t >= t0) {
-                // we have arrived at the sought interval
-                break seek;
-              }
-            } // prepare binary search on the left side of the index
-
-
-            right = i1;
-            i1 = 0;
-            break linear_scan;
-          } // the interval is valid
-
-
-          break validate_interval;
-        } // linear scan
-        // binary search
-
-
-        while (i1 < right) {
-          const mid = i1 + right >>> 1;
-
-          if (t < pp[mid]) {
-            right = mid;
-          } else {
-            i1 = mid + 1;
-          }
-        }
-
-        t1 = pp[i1];
-        t0 = pp[i1 - 1]; // check boundary cases, again
-
-        if (t0 === undefined) {
-          this._cachedIndex = 0;
-          return this.beforeStart_(0, t, t1);
-        }
-
-        if (t1 === undefined) {
-          i1 = pp.length;
-          this._cachedIndex = i1;
-          return this.afterEnd_(i1 - 1, t0, t);
-        }
-      } // seek
-
-
-      this._cachedIndex = i1;
-      this.intervalChanged_(i1, t0, t1);
-    } // validate_interval
-
-
-    return this.interpolate_(i1, t0, t, t1);
-  },
-  settings: null,
-  // optional, subclass-specific settings structure
-  // Note: The indirection allows central control of many interpolants.
-  // --- Protected interface
-  DefaultSettings_: {},
-  getSettings_: function () {
-    return this.settings || this.DefaultSettings_;
-  },
-  copySampleValue_: function (index) {
-    // copies a sample value to the result buffer
-    const result = this.resultBuffer,
-          values = this.sampleValues,
-          stride = this.valueSize,
-          offset = index * stride;
-
-    for (let i = 0; i !== stride; ++i) {
-      result[i] = values[offset + i];
-    }
-
-    return result;
-  },
-  // Template methods for derived classes:
-  interpolate_: function ()
-  /* i1, t0, t, t1 */
-  {
-    throw new Error('call to abstract method'); // implementations shall return this.resultBuffer
-  },
-  intervalChanged_: function ()
-  /* i1, t0, t1 */
-  {// empty
-  }
-}); // DECLARE ALIAS AFTER assign prototype
-
-Object.assign(Interpolant.prototype, {
-  //( 0, t, t0 ), returns this.resultBuffer
-  beforeStart_: Interpolant.prototype.copySampleValue_,
-  //( N-1, tN-1, t ), returns this.resultBuffer
-  afterEnd_: Interpolant.prototype.copySampleValue_
-});
-/**
- * Fast and simple cubic spline interpolant.
- *
- * It was derived from a Hermitian construction setting the first derivative
- * at each sample position to the linear slope between neighboring positions
- * over their parameter interval.
- */
-
-function CubicInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
-  Interpolant.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
-  this._weightPrev = -0;
-  this._offsetPrev = -0;
-  this._weightNext = -0;
-  this._offsetNext = -0;
-}
-
-CubicInterpolant.prototype = Object.assign(Object.create(Interpolant.prototype), {
-  constructor: CubicInterpolant,
-  DefaultSettings_: {
-    endingStart: ZeroCurvatureEnding,
-    endingEnd: ZeroCurvatureEnding
-  },
-  intervalChanged_: function (i1, t0, t1) {
-    const pp = this.parameterPositions;
-    let iPrev = i1 - 2,
-        iNext = i1 + 1,
-        tPrev = pp[iPrev],
-        tNext = pp[iNext];
-
-    if (tPrev === undefined) {
-      switch (this.getSettings_().endingStart) {
-        case ZeroSlopeEnding:
-          // f'(t0) = 0
-          iPrev = i1;
-          tPrev = 2 * t0 - t1;
-          break;
-
-        case WrapAroundEnding:
-          // use the other end of the curve
-          iPrev = pp.length - 2;
-          tPrev = t0 + pp[iPrev] - pp[iPrev + 1];
-          break;
-
-        default:
-          // ZeroCurvatureEnding
-          // f''(t0) = 0 a.k.a. Natural Spline
-          iPrev = i1;
-          tPrev = t1;
-      }
-    }
-
-    if (tNext === undefined) {
-      switch (this.getSettings_().endingEnd) {
-        case ZeroSlopeEnding:
-          // f'(tN) = 0
-          iNext = i1;
-          tNext = 2 * t1 - t0;
-          break;
-
-        case WrapAroundEnding:
-          // use the other end of the curve
-          iNext = 1;
-          tNext = t1 + pp[1] - pp[0];
-          break;
-
-        default:
-          // ZeroCurvatureEnding
-          // f''(tN) = 0, a.k.a. Natural Spline
-          iNext = i1 - 1;
-          tNext = t0;
-      }
-    }
-
-    const halfDt = (t1 - t0) * 0.5,
-          stride = this.valueSize;
-    this._weightPrev = halfDt / (t0 - tPrev);
-    this._weightNext = halfDt / (tNext - t1);
-    this._offsetPrev = iPrev * stride;
-    this._offsetNext = iNext * stride;
-  },
-  interpolate_: function (i1, t0, t, t1) {
-    const result = this.resultBuffer,
-          values = this.sampleValues,
-          stride = this.valueSize,
-          o1 = i1 * stride,
-          o0 = o1 - stride,
-          oP = this._offsetPrev,
-          oN = this._offsetNext,
-          wP = this._weightPrev,
-          wN = this._weightNext,
-          p = (t - t0) / (t1 - t0),
-          pp = p * p,
-          ppp = pp * p; // evaluate polynomials
-
-    const sP = -wP * ppp + 2 * wP * pp - wP * p;
-    const s0 = (1 + wP) * ppp + (-1.5 - 2 * wP) * pp + (-0.5 + wP) * p + 1;
-    const s1 = (-1 - wN) * ppp + (1.5 + wN) * pp + 0.5 * p;
-    const sN = wN * ppp - wN * pp; // combine data linearly
-
-    for (let i = 0; i !== stride; ++i) {
-      result[i] = sP * values[oP + i] + s0 * values[o0 + i] + s1 * values[o1 + i] + sN * values[oN + i];
-    }
-
-    return result;
-  }
-});
-
-function LinearInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
-  Interpolant.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
-}
-
-LinearInterpolant.prototype = Object.assign(Object.create(Interpolant.prototype), {
-  constructor: LinearInterpolant,
-  interpolate_: function (i1, t0, t, t1) {
-    const result = this.resultBuffer,
-          values = this.sampleValues,
-          stride = this.valueSize,
-          offset1 = i1 * stride,
-          offset0 = offset1 - stride,
-          weight1 = (t - t0) / (t1 - t0),
-          weight0 = 1 - weight1;
-
-    for (let i = 0; i !== stride; ++i) {
-      result[i] = values[offset0 + i] * weight0 + values[offset1 + i] * weight1;
-    }
-
-    return result;
-  }
-});
-/**
- *
- * Interpolant that evaluates to the sample value at the position preceeding
- * the parameter.
- */
-
-function DiscreteInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
-  Interpolant.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
-}
-
-DiscreteInterpolant.prototype = Object.assign(Object.create(Interpolant.prototype), {
-  constructor: DiscreteInterpolant,
-  interpolate_: function (i1
-  /*, t0, t, t1 */
-  ) {
-    return this.copySampleValue_(i1 - 1);
-  }
-});
-
-class KeyframeTrack {
-  constructor(name, times, values, interpolation) {
-    if (name === undefined) throw new Error('THREE.KeyframeTrack: track name is undefined');
-    if (times === undefined || times.length === 0) throw new Error('THREE.KeyframeTrack: no keyframes in track named ' + name);
-    this.name = name;
-    this.times = AnimationUtils.convertArray(times, this.TimeBufferType);
-    this.values = AnimationUtils.convertArray(values, this.ValueBufferType);
-    this.setInterpolation(interpolation || this.DefaultInterpolation);
-  } // Serialization (in static context, because of constructor invocation
-  // and automatic invocation of .toJSON):
-
-
-  static toJSON(track) {
-    const trackType = track.constructor;
-    let json; // derived classes can define a static toJSON method
-
-    if (trackType.toJSON !== this.toJSON) {
-      json = trackType.toJSON(track);
-    } else {
-      // by default, we assume the data can be serialized as-is
-      json = {
-        'name': track.name,
-        'times': AnimationUtils.convertArray(track.times, Array),
-        'values': AnimationUtils.convertArray(track.values, Array)
-      };
-      const interpolation = track.getInterpolation();
-
-      if (interpolation !== track.DefaultInterpolation) {
-        json.interpolation = interpolation;
-      }
-    }
-
-    json.type = track.ValueTypeName; // mandatory
-
-    return json;
-  }
-
-  InterpolantFactoryMethodDiscrete(result) {
-    return new DiscreteInterpolant(this.times, this.values, this.getValueSize(), result);
-  }
-
-  InterpolantFactoryMethodLinear(result) {
-    return new LinearInterpolant(this.times, this.values, this.getValueSize(), result);
-  }
-
-  InterpolantFactoryMethodSmooth(result) {
-    return new CubicInterpolant(this.times, this.values, this.getValueSize(), result);
-  }
-
-  setInterpolation(interpolation) {
-    let factoryMethod;
-
-    switch (interpolation) {
-      case InterpolateDiscrete:
-        factoryMethod = this.InterpolantFactoryMethodDiscrete;
-        break;
-
-      case InterpolateLinear:
-        factoryMethod = this.InterpolantFactoryMethodLinear;
-        break;
-
-      case InterpolateSmooth:
-        factoryMethod = this.InterpolantFactoryMethodSmooth;
-        break;
-    }
-
-    if (factoryMethod === undefined) {
-      const message = 'unsupported interpolation for ' + this.ValueTypeName + ' keyframe track named ' + this.name;
-
-      if (this.createInterpolant === undefined) {
-        // fall back to default, unless the default itself is messed up
-        if (interpolation !== this.DefaultInterpolation) {
-          this.setInterpolation(this.DefaultInterpolation);
-        } else {
-          throw new Error(message); // fatal, in this case
-        }
-      }
-
-      console.warn('THREE.KeyframeTrack:', message);
-      return this;
-    }
-
-    this.createInterpolant = factoryMethod;
-    return this;
-  }
-
-  getInterpolation() {
-    switch (this.createInterpolant) {
-      case this.InterpolantFactoryMethodDiscrete:
-        return InterpolateDiscrete;
-
-      case this.InterpolantFactoryMethodLinear:
-        return InterpolateLinear;
-
-      case this.InterpolantFactoryMethodSmooth:
-        return InterpolateSmooth;
-    }
-  }
-
-  getValueSize() {
-    return this.values.length / this.times.length;
-  } // move all keyframes either forwards or backwards in time
-
-
-  shift(timeOffset) {
-    if (timeOffset !== 0.0) {
-      const times = this.times;
-
-      for (let i = 0, n = times.length; i !== n; ++i) {
-        times[i] += timeOffset;
-      }
-    }
-
-    return this;
-  } // scale all keyframe times by a factor (useful for frame <-> seconds conversions)
-
-
-  scale(timeScale) {
-    if (timeScale !== 1.0) {
-      const times = this.times;
-
-      for (let i = 0, n = times.length; i !== n; ++i) {
-        times[i] *= timeScale;
-      }
-    }
-
-    return this;
-  } // removes keyframes before and after animation without changing any values within the range [startTime, endTime].
-  // IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
-
-
-  trim(startTime, endTime) {
-    const times = this.times,
-          nKeys = times.length;
-    let from = 0,
-        to = nKeys - 1;
-
-    while (from !== nKeys && times[from] < startTime) {
-      ++from;
-    }
-
-    while (to !== -1 && times[to] > endTime) {
-      --to;
-    }
-
-    ++to; // inclusive -> exclusive bound
-
-    if (from !== 0 || to !== nKeys) {
-      // empty tracks are forbidden, so keep at least one keyframe
-      if (from >= to) {
-        to = Math.max(to, 1);
-        from = to - 1;
-      }
-
-      const stride = this.getValueSize();
-      this.times = AnimationUtils.arraySlice(times, from, to);
-      this.values = AnimationUtils.arraySlice(this.values, from * stride, to * stride);
-    }
-
-    return this;
-  } // ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
-
-
-  validate() {
-    let valid = true;
-    const valueSize = this.getValueSize();
-
-    if (valueSize - Math.floor(valueSize) !== 0) {
-      console.error('THREE.KeyframeTrack: Invalid value size in track.', this);
-      valid = false;
-    }
-
-    const times = this.times,
-          values = this.values,
-          nKeys = times.length;
-
-    if (nKeys === 0) {
-      console.error('THREE.KeyframeTrack: Track is empty.', this);
-      valid = false;
-    }
-
-    let prevTime = null;
-
-    for (let i = 0; i !== nKeys; i++) {
-      const currTime = times[i];
-
-      if (typeof currTime === 'number' && isNaN(currTime)) {
-        console.error('THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime);
-        valid = false;
-        break;
-      }
-
-      if (prevTime !== null && prevTime > currTime) {
-        console.error('THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime);
-        valid = false;
-        break;
-      }
-
-      prevTime = currTime;
-    }
-
-    if (values !== undefined) {
-      if (AnimationUtils.isTypedArray(values)) {
-        for (let i = 0, n = values.length; i !== n; ++i) {
-          const value = values[i];
-
-          if (isNaN(value)) {
-            console.error('THREE.KeyframeTrack: Value is not a valid number.', this, i, value);
-            valid = false;
-            break;
-          }
-        }
-      }
-    }
-
-    return valid;
-  } // removes equivalent sequential keys as common in morph target sequences
-  // (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
-
-
-  optimize() {
-    // times or values may be shared with other tracks, so overwriting is unsafe
-    const times = AnimationUtils.arraySlice(this.times),
-          values = AnimationUtils.arraySlice(this.values),
-          stride = this.getValueSize(),
-          smoothInterpolation = this.getInterpolation() === InterpolateSmooth,
-          lastIndex = times.length - 1;
-    let writeIndex = 1;
-
-    for (let i = 1; i < lastIndex; ++i) {
-      let keep = false;
-      const time = times[i];
-      const timeNext = times[i + 1]; // remove adjacent keyframes scheduled at the same time
-
-      if (time !== timeNext && (i !== 1 || time !== times[0])) {
-        if (!smoothInterpolation) {
-          // remove unnecessary keyframes same as their neighbors
-          const offset = i * stride,
-                offsetP = offset - stride,
-                offsetN = offset + stride;
-
-          for (let j = 0; j !== stride; ++j) {
-            const value = values[offset + j];
-
-            if (value !== values[offsetP + j] || value !== values[offsetN + j]) {
-              keep = true;
-              break;
-            }
-          }
-        } else {
-          keep = true;
-        }
-      } // in-place compaction
-
-
-      if (keep) {
-        if (i !== writeIndex) {
-          times[writeIndex] = times[i];
-          const readOffset = i * stride,
-                writeOffset = writeIndex * stride;
-
-          for (let j = 0; j !== stride; ++j) {
-            values[writeOffset + j] = values[readOffset + j];
-          }
-        }
-
-        ++writeIndex;
-      }
-    } // flush last keyframe (compaction looks ahead)
-
-
-    if (lastIndex > 0) {
-      times[writeIndex] = times[lastIndex];
-
-      for (let readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++j) {
-        values[writeOffset + j] = values[readOffset + j];
-      }
-
-      ++writeIndex;
-    }
-
-    if (writeIndex !== times.length) {
-      this.times = AnimationUtils.arraySlice(times, 0, writeIndex);
-      this.values = AnimationUtils.arraySlice(values, 0, writeIndex * stride);
-    } else {
-      this.times = times;
-      this.values = values;
-    }
-
-    return this;
-  }
-
-  clone() {
-    const times = AnimationUtils.arraySlice(this.times, 0);
-    const values = AnimationUtils.arraySlice(this.values, 0);
-    const TypedKeyframeTrack = this.constructor;
-    const track = new TypedKeyframeTrack(this.name, times, values); // Interpolant argument to constructor is not saved, so copy the factory method directly.
-
-    track.createInterpolant = this.createInterpolant;
-    return track;
-  }
-
-}
-
-exports.KeyframeTrack = KeyframeTrack;
-KeyframeTrack.prototype.TimeBufferType = Float32Array;
-KeyframeTrack.prototype.ValueBufferType = Float32Array;
-KeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;
-/**
- * A Track of Boolean keyframe values.
- */
-
-class BooleanKeyframeTrack extends KeyframeTrack {}
-
-exports.BooleanKeyframeTrack = BooleanKeyframeTrack;
-BooleanKeyframeTrack.prototype.ValueTypeName = 'bool';
-BooleanKeyframeTrack.prototype.ValueBufferType = Array;
-BooleanKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
-BooleanKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
-BooleanKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;
-/**
- * A Track of keyframe values that represent color.
- */
-
-class ColorKeyframeTrack extends KeyframeTrack {}
-
-exports.ColorKeyframeTrack = ColorKeyframeTrack;
-ColorKeyframeTrack.prototype.ValueTypeName = 'color';
-/**
- * A Track of numeric keyframe values.
- */
-
-class NumberKeyframeTrack extends KeyframeTrack {}
-
-exports.NumberKeyframeTrack = NumberKeyframeTrack;
-NumberKeyframeTrack.prototype.ValueTypeName = 'number';
-/**
- * Spherical linear unit quaternion interpolant.
- */
-
-function QuaternionLinearInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
-  Interpolant.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
-}
-
-QuaternionLinearInterpolant.prototype = Object.assign(Object.create(Interpolant.prototype), {
-  constructor: QuaternionLinearInterpolant,
-  interpolate_: function (i1, t0, t, t1) {
-    const result = this.resultBuffer,
-          values = this.sampleValues,
-          stride = this.valueSize,
-          alpha = (t - t0) / (t1 - t0);
-    let offset = i1 * stride;
-
-    for (let end = offset + stride; offset !== end; offset += 4) {
-      Quaternion.slerpFlat(result, 0, values, offset - stride, values, offset, alpha);
-    }
-
-    return result;
-  }
-});
-/**
- * A Track of quaternion keyframe values.
- */
-
-class QuaternionKeyframeTrack extends KeyframeTrack {
-  InterpolantFactoryMethodLinear(result) {
-    return new QuaternionLinearInterpolant(this.times, this.values, this.getValueSize(), result);
-  }
-
-}
-
-exports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;
-QuaternionKeyframeTrack.prototype.ValueTypeName = 'quaternion'; // ValueBufferType is inherited
-
-QuaternionKeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;
-QuaternionKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;
-/**
- * A Track that interpolates Strings
- */
-
-class StringKeyframeTrack extends KeyframeTrack {}
-
-exports.StringKeyframeTrack = StringKeyframeTrack;
-StringKeyframeTrack.prototype.ValueTypeName = 'string';
-StringKeyframeTrack.prototype.ValueBufferType = Array;
-StringKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
-StringKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
-StringKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;
-/**
- * A Track of vectored keyframe values.
- */
-
-class VectorKeyframeTrack extends KeyframeTrack {}
-
-exports.VectorKeyframeTrack = VectorKeyframeTrack;
-VectorKeyframeTrack.prototype.ValueTypeName = 'vector';
-
-class AnimationClip {
-  constructor(name, duration = -1, tracks, blendMode = NormalAnimationBlendMode) {
-    this.name = name;
-    this.tracks = tracks;
-    this.duration = duration;
-    this.blendMode = blendMode;
-    this.uuid = MathUtils.generateUUID(); // this means it should figure out its duration by scanning the tracks
-
-    if (this.duration < 0) {
-      this.resetDuration();
-    }
-  }
-
-  static parse(json) {
-    const tracks = [],
-          jsonTracks = json.tracks,
-          frameTime = 1.0 / (json.fps || 1.0);
-
-    for (let i = 0, n = jsonTracks.length; i !== n; ++i) {
-      tracks.push(parseKeyframeTrack(jsonTracks[i]).scale(frameTime));
-    }
-
-    const clip = new this(json.name, json.duration, tracks, json.blendMode);
-    clip.uuid = json.uuid;
-    return clip;
-  }
-
-  static toJSON(clip) {
-    const tracks = [],
-          clipTracks = clip.tracks;
-    const json = {
-      'name': clip.name,
-      'duration': clip.duration,
-      'tracks': tracks,
-      'uuid': clip.uuid,
-      'blendMode': clip.blendMode
-    };
-
-    for (let i = 0, n = clipTracks.length; i !== n; ++i) {
-      tracks.push(KeyframeTrack.toJSON(clipTracks[i]));
-    }
-
-    return json;
-  }
-
-  static CreateFromMorphTargetSequence(name, morphTargetSequence, fps, noLoop) {
-    const numMorphTargets = morphTargetSequence.length;
-    const tracks = [];
-
-    for (let i = 0; i < numMorphTargets; i++) {
-      let times = [];
-      let values = [];
-      times.push((i + numMorphTargets - 1) % numMorphTargets, i, (i + 1) % numMorphTargets);
-      values.push(0, 1, 0);
-      const order = AnimationUtils.getKeyframeOrder(times);
-      times = AnimationUtils.sortedArray(times, 1, order);
-      values = AnimationUtils.sortedArray(values, 1, order); // if there is a key at the first frame, duplicate it as the
-      // last frame as well for perfect loop.
-
-      if (!noLoop && times[0] === 0) {
-        times.push(numMorphTargets);
-        values.push(values[0]);
-      }
-
-      tracks.push(new NumberKeyframeTrack('.morphTargetInfluences[' + morphTargetSequence[i].name + ']', times, values).scale(1.0 / fps));
-    }
-
-    return new this(name, -1, tracks);
-  }
-
-  static findByName(objectOrClipArray, name) {
-    let clipArray = objectOrClipArray;
-
-    if (!Array.isArray(objectOrClipArray)) {
-      const o = objectOrClipArray;
-      clipArray = o.geometry && o.geometry.animations || o.animations;
-    }
-
-    for (let i = 0; i < clipArray.length; i++) {
-      if (clipArray[i].name === name) {
-        return clipArray[i];
-      }
-    }
-
-    return null;
-  }
-
-  static CreateClipsFromMorphTargetSequences(morphTargets, fps, noLoop) {
-    const animationToMorphTargets = {}; // tested with https://regex101.com/ on trick sequences
-    // such flamingo_flyA_003, flamingo_run1_003, crdeath0059
-
-    const pattern = /^([\w-]*?)([\d]+)$/; // sort morph target names into animation groups based
-    // patterns like Walk_001, Walk_002, Run_001, Run_002
-
-    for (let i = 0, il = morphTargets.length; i < il; i++) {
-      const morphTarget = morphTargets[i];
-      const parts = morphTarget.name.match(pattern);
-
-      if (parts && parts.length > 1) {
-        const name = parts[1];
-        let animationMorphTargets = animationToMorphTargets[name];
-
-        if (!animationMorphTargets) {
-          animationToMorphTargets[name] = animationMorphTargets = [];
-        }
-
-        animationMorphTargets.push(morphTarget);
-      }
-    }
-
-    const clips = [];
-
-    for (const name in animationToMorphTargets) {
-      clips.push(this.CreateFromMorphTargetSequence(name, animationToMorphTargets[name], fps, noLoop));
-    }
-
-    return clips;
-  } // parse the animation.hierarchy format
-
-
-  static parseAnimation(animation, bones) {
-    if (!animation) {
-      console.error('THREE.AnimationClip: No animation in JSONLoader data.');
-      return null;
-    }
-
-    const addNonemptyTrack = function (trackType, trackName, animationKeys, propertyName, destTracks) {
-      // only return track if there are actually keys.
-      if (animationKeys.length !== 0) {
-        const times = [];
-        const values = [];
-        AnimationUtils.flattenJSON(animationKeys, times, values, propertyName); // empty keys are filtered out, so check again
-
-        if (times.length !== 0) {
-          destTracks.push(new trackType(trackName, times, values));
-        }
-      }
-    };
-
-    const tracks = [];
-    const clipName = animation.name || 'default';
-    const fps = animation.fps || 30;
-    const blendMode = animation.blendMode; // automatic length determination in AnimationClip.
-
-    let duration = animation.length || -1;
-    const hierarchyTracks = animation.hierarchy || [];
-
-    for (let h = 0; h < hierarchyTracks.length; h++) {
-      const animationKeys = hierarchyTracks[h].keys; // skip empty tracks
-
-      if (!animationKeys || animationKeys.length === 0) continue; // process morph targets
-
-      if (animationKeys[0].morphTargets) {
-        // figure out all morph targets used in this track
-        const morphTargetNames = {};
-        let k;
-
-        for (k = 0; k < animationKeys.length; k++) {
-          if (animationKeys[k].morphTargets) {
-            for (let m = 0; m < animationKeys[k].morphTargets.length; m++) {
-              morphTargetNames[animationKeys[k].morphTargets[m]] = -1;
-            }
-          }
-        } // create a track for each morph target with all zero
-        // morphTargetInfluences except for the keys in which
-        // the morphTarget is named.
-
-
-        for (const morphTargetName in morphTargetNames) {
-          const times = [];
-          const values = [];
-
-          for (let m = 0; m !== animationKeys[k].morphTargets.length; ++m) {
-            const animationKey = animationKeys[k];
-            times.push(animationKey.time);
-            values.push(animationKey.morphTarget === morphTargetName ? 1 : 0);
-          }
-
-          tracks.push(new NumberKeyframeTrack('.morphTargetInfluence[' + morphTargetName + ']', times, values));
-        }
-
-        duration = morphTargetNames.length * (fps || 1.0);
-      } else {
-        // ...assume skeletal animation
-        const boneName = '.bones[' + bones[h].name + ']';
-        addNonemptyTrack(VectorKeyframeTrack, boneName + '.position', animationKeys, 'pos', tracks);
-        addNonemptyTrack(QuaternionKeyframeTrack, boneName + '.quaternion', animationKeys, 'rot', tracks);
-        addNonemptyTrack(VectorKeyframeTrack, boneName + '.scale', animationKeys, 'scl', tracks);
-      }
-    }
-
-    if (tracks.length === 0) {
-      return null;
-    }
-
-    const clip = new this(clipName, duration, tracks, blendMode);
-    return clip;
-  }
-
-  resetDuration() {
-    const tracks = this.tracks;
-    let duration = 0;
-
-    for (let i = 0, n = tracks.length; i !== n; ++i) {
-      const track = this.tracks[i];
-      duration = Math.max(duration, track.times[track.times.length - 1]);
-    }
-
-    this.duration = duration;
-    return this;
-  }
-
-  trim() {
-    for (let i = 0; i < this.tracks.length; i++) {
-      this.tracks[i].trim(0, this.duration);
-    }
-
-    return this;
-  }
-
-  validate() {
-    let valid = true;
-
-    for (let i = 0; i < this.tracks.length; i++) {
-      valid = valid && this.tracks[i].validate();
-    }
-
-    return valid;
-  }
-
-  optimize() {
-    for (let i = 0; i < this.tracks.length; i++) {
-      this.tracks[i].optimize();
-    }
-
-    return this;
-  }
-
-  clone() {
-    const tracks = [];
-
-    for (let i = 0; i < this.tracks.length; i++) {
-      tracks.push(this.tracks[i].clone());
-    }
-
-    return new this.constructor(this.name, this.duration, tracks, this.blendMode);
-  }
-
-  toJSON() {
-    return this.constructor.toJSON(this);
-  }
-
-}
-
-exports.AnimationClip = AnimationClip;
-
-function getTrackTypeForValueTypeName(typeName) {
-  switch (typeName.toLowerCase()) {
-    case 'scalar':
-    case 'double':
-    case 'float':
-    case 'number':
-    case 'integer':
-      return NumberKeyframeTrack;
-
-    case 'vector':
-    case 'vector2':
-    case 'vector3':
-    case 'vector4':
-      return VectorKeyframeTrack;
-
-    case 'color':
-      return ColorKeyframeTrack;
-
-    case 'quaternion':
-      return QuaternionKeyframeTrack;
-
-    case 'bool':
-    case 'boolean':
-      return BooleanKeyframeTrack;
-
-    case 'string':
-      return StringKeyframeTrack;
-  }
-
-  throw new Error('THREE.KeyframeTrack: Unsupported typeName: ' + typeName);
-}
-
-function parseKeyframeTrack(json) {
-  if (json.type === undefined) {
-    throw new Error('THREE.KeyframeTrack: track type undefined, can not parse');
-  }
-
-  const trackType = getTrackTypeForValueTypeName(json.type);
-
-  if (json.times === undefined) {
-    const times = [],
-          values = [];
-    AnimationUtils.flattenJSON(json.keys, times, values, 'value');
-    json.times = times;
-    json.values = values;
-  } // derived classes can define a static parse method
-
-
-  if (trackType.parse !== undefined) {
-    return trackType.parse(json);
-  } else {
-    // by default, we assume a constructor compatible with the base
-    return new trackType(json.name, json.times, json.values, json.interpolation);
-  }
-}
-
-const Cache = {
-  enabled: false,
-  files: {},
-  add: function (key, file) {
-    if (this.enabled === false) return; // console.log( 'THREE.Cache', 'Adding key:', key );
-
-    this.files[key] = file;
-  },
-  get: function (key) {
-    if (this.enabled === false) return; // console.log( 'THREE.Cache', 'Checking key:', key );
-
-    return this.files[key];
-  },
-  remove: function (key) {
-    delete this.files[key];
-  },
-  clear: function () {
-    this.files = {};
-  }
-};
-exports.Cache = Cache;
-
-function LoadingManager(onLoad, onProgress, onError) {
-  const scope = this;
-  let isLoading = false;
-  let itemsLoaded = 0;
-  let itemsTotal = 0;
-  let urlModifier = undefined;
-  const handlers = []; // Refer to #5689 for the reason why we don't set .onStart
-  // in the constructor
-
-  this.onStart = undefined;
-  this.onLoad = onLoad;
-  this.onProgress = onProgress;
-  this.onError = onError;
-
-  this.itemStart = function (url) {
-    itemsTotal++;
-
-    if (isLoading === false) {
-      if (scope.onStart !== undefined) {
-        scope.onStart(url, itemsLoaded, itemsTotal);
-      }
-    }
-
-    isLoading = true;
-  };
-
-  this.itemEnd = function (url) {
-    itemsLoaded++;
-
-    if (scope.onProgress !== undefined) {
-      scope.onProgress(url, itemsLoaded, itemsTotal);
-    }
-
-    if (itemsLoaded === itemsTotal) {
-      isLoading = false;
-
-      if (scope.onLoad !== undefined) {
-        scope.onLoad();
-      }
-    }
-  };
-
-  this.itemError = function (url) {
-    if (scope.onError !== undefined) {
-      scope.onError(url);
-    }
-  };
-
-  this.resolveURL = function (url) {
-    if (urlModifier) {
-      return urlModifier(url);
-    }
-
-    return url;
-  };
-
-  this.setURLModifier = function (transform) {
-    urlModifier = transform;
-    return this;
-  };
-
-  this.addHandler = function (regex, loader) {
-    handlers.push(regex, loader);
-    return this;
-  };
-
-  this.removeHandler = function (regex) {
-    const index = handlers.indexOf(regex);
-
-    if (index !== -1) {
-      handlers.splice(index, 2);
-    }
-
-    return this;
-  };
-
-  this.getHandler = function (file) {
-    for (let i = 0, l = handlers.length; i < l; i += 2) {
-      const regex = handlers[i];
-      const loader = handlers[i + 1];
-      if (regex.global) regex.lastIndex = 0; // see #17920
-
-      if (regex.test(file)) {
-        return loader;
-      }
-    }
-
-    return null;
-  };
-}
-
-const DefaultLoadingManager = new LoadingManager();
-exports.DefaultLoadingManager = DefaultLoadingManager;
-
-function Loader(manager) {
-  this.manager = manager !== undefined ? manager : DefaultLoadingManager;
-  this.crossOrigin = 'anonymous';
-  this.withCredentials = false;
-  this.path = '';
-  this.resourcePath = '';
-  this.requestHeader = {};
-}
-
-Object.assign(Loader.prototype, {
-  load: function ()
-  /* url, onLoad, onProgress, onError */
-  {},
-  loadAsync: function (url, onProgress) {
-    const scope = this;
-    return new Promise(function (resolve, reject) {
-      scope.load(url, resolve, onProgress, reject);
-    });
-  },
-  parse: function ()
-  /* data */
-  {},
-  setCrossOrigin: function (crossOrigin) {
-    this.crossOrigin = crossOrigin;
-    return this;
-  },
-  setWithCredentials: function (value) {
-    this.withCredentials = value;
-    return this;
-  },
-  setPath: function (path) {
-    this.path = path;
-    return this;
-  },
-  setResourcePath: function (resourcePath) {
-    this.resourcePath = resourcePath;
-    return this;
-  },
-  setRequestHeader: function (requestHeader) {
-    this.requestHeader = requestHeader;
-    return this;
-  }
-});
-const loading = {};
-
-function FileLoader(manager) {
-  Loader.call(this, manager);
-}
-
-FileLoader.prototype = Object.assign(Object.create(Loader.prototype), {
-  constructor: FileLoader,
-  load: function (url, onLoad, onProgress, onError) {
-    if (url === undefined) url = '';
-    if (this.path !== undefined) url = this.path + url;
-    url = this.manager.resolveURL(url);
-    const scope = this;
-    const cached = Cache.get(url);
-
-    if (cached !== undefined) {
-      scope.manager.itemStart(url);
-      setTimeout(function () {
-        if (onLoad) onLoad(cached);
-        scope.manager.itemEnd(url);
-      }, 0);
-      return cached;
-    } // Check if request is duplicate
-
-
-    if (loading[url] !== undefined) {
-      loading[url].push({
-        onLoad: onLoad,
-        onProgress: onProgress,
-        onError: onError
-      });
-      return;
-    } // Check for data: URI
-
-
-    const dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;
-    const dataUriRegexResult = url.match(dataUriRegex);
-    let request; // Safari can not handle Data URIs through XMLHttpRequest so process manually
-
-    if (dataUriRegexResult) {
-      const mimeType = dataUriRegexResult[1];
-      const isBase64 = !!dataUriRegexResult[2];
-      let data = dataUriRegexResult[3];
-      data = decodeURIComponent(data);
-      if (isBase64) data = atob(data);
-
-      try {
-        let response;
-        const responseType = (this.responseType || '').toLowerCase();
-
-        switch (responseType) {
-          case 'arraybuffer':
-          case 'blob':
-            const view = new Uint8Array(data.length);
-
-            for (let i = 0; i < data.length; i++) {
-              view[i] = data.charCodeAt(i);
-            }
-
-            if (responseType === 'blob') {
-              response = new Blob([view.buffer], {
-                type: mimeType
-              });
-            } else {
-              response = view.buffer;
-            }
-
-            break;
-
-          case 'document':
-            const parser = new DOMParser();
-            response = parser.parseFromString(data, mimeType);
-            break;
-
-          case 'json':
-            response = JSON.parse(data);
-            break;
-
-          default:
-            // 'text' or other
-            response = data;
-            break;
-        } // Wait for next browser tick like standard XMLHttpRequest event dispatching does
-
-
-        setTimeout(function () {
-          if (onLoad) onLoad(response);
-          scope.manager.itemEnd(url);
-        }, 0);
-      } catch (error) {
-        // Wait for next browser tick like standard XMLHttpRequest event dispatching does
-        setTimeout(function () {
-          if (onError) onError(error);
-          scope.manager.itemError(url);
-          scope.manager.itemEnd(url);
-        }, 0);
-      }
-    } else {
-      // Initialise array for duplicate requests
-      loading[url] = [];
-      loading[url].push({
-        onLoad: onLoad,
-        onProgress: onProgress,
-        onError: onError
-      });
-      request = new XMLHttpRequest();
-      request.open('GET', url, true);
-      request.addEventListener('load', function (event) {
-        const response = this.response;
-        const callbacks = loading[url];
-        delete loading[url];
-
-        if (this.status === 200 || this.status === 0) {
-          // Some browsers return HTTP Status 0 when using non-http protocol
-          // e.g. 'file://' or 'data://'. Handle as success.
-          if (this.status === 0) console.warn('THREE.FileLoader: HTTP Status 0 received.'); // Add to cache only on HTTP success, so that we do not cache
-          // error response bodies as proper responses to requests.
-
-          Cache.add(url, response);
-
-          for (let i = 0, il = callbacks.length; i < il; i++) {
-            const callback = callbacks[i];
-            if (callback.onLoad) callback.onLoad(response);
-          }
-
-          scope.manager.itemEnd(url);
-        } else {
-          for (let i = 0, il = callbacks.length; i < il; i++) {
-            const callback = callbacks[i];
-            if (callback.onError) callback.onError(event);
-          }
-
-          scope.manager.itemError(url);
-          scope.manager.itemEnd(url);
-        }
-      }, false);
-      request.addEventListener('progress', function (event) {
-        const callbacks = loading[url];
-
-        for (let i = 0, il = callbacks.length; i < il; i++) {
-          const callback = callbacks[i];
-          if (callback.onProgress) callback.onProgress(event);
-        }
-      }, false);
-      request.addEventListener('error', function (event) {
-        const callbacks = loading[url];
-        delete loading[url];
-
-        for (let i = 0, il = callbacks.length; i < il; i++) {
-          const callback = callbacks[i];
-          if (callback.onError) callback.onError(event);
-        }
-
-        scope.manager.itemError(url);
-        scope.manager.itemEnd(url);
-      }, false);
-      request.addEventListener('abort', function (event) {
-        const callbacks = loading[url];
-        delete loading[url];
-
-        for (let i = 0, il = callbacks.length; i < il; i++) {
-          const callback = callbacks[i];
-          if (callback.onError) callback.onError(event);
-        }
-
-        scope.manager.itemError(url);
-        scope.manager.itemEnd(url);
-      }, false);
-      if (this.responseType !== undefined) request.responseType = this.responseType;
-      if (this.withCredentials !== undefined) request.withCredentials = this.withCredentials;
-      if (request.overrideMimeType) request.overrideMimeType(this.mimeType !== undefined ? this.mimeType : 'text/plain');
-
-      for (const header in this.requestHeader) {
-        request.setRequestHeader(header, this.requestHeader[header]);
-      }
-
-      request.send(null);
-    }
-
-    scope.manager.itemStart(url);
-    return request;
-  },
-  setResponseType: function (value) {
-    this.responseType = value;
-    return this;
-  },
-  setMimeType: function (value) {
-    this.mimeType = value;
-    return this;
-  }
-});
-
-class AnimationLoader extends Loader {
-  constructor(manager) {
-    super(manager);
-  }
-
-  load(url, onLoad, onProgress, onError) {
-    const scope = this;
-    const loader = new FileLoader(this.manager);
-    loader.setPath(this.path);
-    loader.setRequestHeader(this.requestHeader);
-    loader.setWithCredentials(this.withCredentials);
-    loader.load(url, function (text) {
-      try {
-        onLoad(scope.parse(JSON.parse(text)));
-      } catch (e) {
-        if (onError) {
-          onError(e);
-        } else {
-          console.error(e);
-        }
-
-        scope.manager.itemError(url);
-      }
-    }, onProgress, onError);
-  }
-
-  parse(json) {
-    const animations = [];
-
-    for (let i = 0; i < json.length; i++) {
-      const clip = AnimationClip.parse(json[i]);
-      animations.push(clip);
-    }
-
-    return animations;
-  }
-
-}
-/**
- * Abstract Base class to block based textures loader (dds, pvr, ...)
- *
- * Sub classes have to implement the parse() method which will be used in load().
- */
-
-
-exports.AnimationLoader = AnimationLoader;
-
-function CompressedTextureLoader(manager) {
-  Loader.call(this, manager);
-}
-
-CompressedTextureLoader.prototype = Object.assign(Object.create(Loader.prototype), {
-  constructor: CompressedTextureLoader,
-  load: function (url, onLoad, onProgress, onError) {
-    const scope = this;
-    const images = [];
-    const texture = new CompressedTexture();
-    const loader = new FileLoader(this.manager);
-    loader.setPath(this.path);
-    loader.setResponseType('arraybuffer');
-    loader.setRequestHeader(this.requestHeader);
-    loader.setWithCredentials(scope.withCredentials);
-    let loaded = 0;
-
-    function loadTexture(i) {
-      loader.load(url[i], function (buffer) {
-        const texDatas = scope.parse(buffer, true);
-        images[i] = {
-          width: texDatas.width,
-          height: texDatas.height,
-          format: texDatas.format,
-          mipmaps: texDatas.mipmaps
-        };
-        loaded += 1;
-
-        if (loaded === 6) {
-          if (texDatas.mipmapCount === 1) texture.minFilter = LinearFilter;
-          texture.image = images;
-          texture.format = texDatas.format;
-          texture.needsUpdate = true;
-          if (onLoad) onLoad(texture);
-        }
-      }, onProgress, onError);
-    }
-
-    if (Array.isArray(url)) {
-      for (let i = 0, il = url.length; i < il; ++i) {
-        loadTexture(i);
-      }
-    } else {
-      // compressed cubemap texture stored in a single DDS file
-      loader.load(url, function (buffer) {
-        const texDatas = scope.parse(buffer, true);
-
-        if (texDatas.isCubemap) {
-          const faces = texDatas.mipmaps.length / texDatas.mipmapCount;
-
-          for (let f = 0; f < faces; f++) {
-            images[f] = {
-              mipmaps: []
-            };
-
-            for (let i = 0; i < texDatas.mipmapCount; i++) {
-              images[f].mipmaps.push(texDatas.mipmaps[f * texDatas.mipmapCount + i]);
-              images[f].format = texDatas.format;
-              images[f].width = texDatas.width;
-              images[f].height = texDatas.height;
-            }
-          }
-
-          texture.image = images;
-        } else {
-          texture.image.width = texDatas.width;
-          texture.image.height = texDatas.height;
-          texture.mipmaps = texDatas.mipmaps;
-        }
-
-        if (texDatas.mipmapCount === 1) {
-          texture.minFilter = LinearFilter;
-        }
-
-        texture.format = texDatas.format;
-        texture.needsUpdate = true;
-        if (onLoad) onLoad(texture);
-      }, onProgress, onError);
-    }
-
-    return texture;
-  }
-});
-
-class ImageLoader extends Loader {
-  constructor(manager) {
-    super(manager);
-  }
-
-  load(url, onLoad, onProgress, onError) {
-    if (this.path !== undefined) url = this.path + url;
-    url = this.manager.resolveURL(url);
-    const scope = this;
-    const cached = Cache.get(url);
-
-    if (cached !== undefined) {
-      scope.manager.itemStart(url);
-      setTimeout(function () {
-        if (onLoad) onLoad(cached);
-        scope.manager.itemEnd(url);
-      }, 0);
-      return cached;
-    }
-
-    const image = document.createElementNS('http://www.w3.org/1999/xhtml', 'img');
-
-    function onImageLoad() {
-      image.removeEventListener('load', onImageLoad, false);
-      image.removeEventListener('error', onImageError, false);
-      Cache.add(url, this);
-      if (onLoad) onLoad(this);
-      scope.manager.itemEnd(url);
-    }
-
-    function onImageError(event) {
-      image.removeEventListener('load', onImageLoad, false);
-      image.removeEventListener('error', onImageError, false);
-      if (onError) onError(event);
-      scope.manager.itemError(url);
-      scope.manager.itemEnd(url);
-    }
-
-    image.addEventListener('load', onImageLoad, false);
-    image.addEventListener('error', onImageError, false);
-
-    if (url.substr(0, 5) !== 'data:') {
-      if (this.crossOrigin !== undefined) image.crossOrigin = this.crossOrigin;
-    }
-
-    scope.manager.itemStart(url);
-    image.src = url;
-    return image;
-  }
-
-}
-
-exports.ImageLoader = ImageLoader;
-
-class CubeTextureLoader extends Loader {
-  constructor(manager) {
-    super(manager);
-  }
-
-  load(urls, onLoad, onProgress, onError) {
-    const texture = new CubeTexture();
-    const loader = new ImageLoader(this.manager);
-    loader.setCrossOrigin(this.crossOrigin);
-    loader.setPath(this.path);
-    let loaded = 0;
-
-    function loadTexture(i) {
-      loader.load(urls[i], function (image) {
-        texture.images[i] = image;
-        loaded++;
-
-        if (loaded === 6) {
-          texture.needsUpdate = true;
-          if (onLoad) onLoad(texture);
-        }
-      }, undefined, onError);
-    }
-
-    for (let i = 0; i < urls.length; ++i) {
-      loadTexture(i);
-    }
-
-    return texture;
-  }
-
-}
-/**
- * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
- *
- * Sub classes have to implement the parse() method which will be used in load().
- */
-
-
-exports.CubeTextureLoader = CubeTextureLoader;
-
-function DataTextureLoader(manager) {
-  Loader.call(this, manager);
-}
-
-DataTextureLoader.prototype = Object.assign(Object.create(Loader.prototype), {
-  constructor: DataTextureLoader,
-  load: function (url, onLoad, onProgress, onError) {
-    const scope = this;
-    const texture = new DataTexture();
-    const loader = new FileLoader(this.manager);
-    loader.setResponseType('arraybuffer');
-    loader.setRequestHeader(this.requestHeader);
-    loader.setPath(this.path);
-    loader.setWithCredentials(scope.withCredentials);
-    loader.load(url, function (buffer) {
-      const texData = scope.parse(buffer);
-      if (!texData) return;
-
-      if (texData.image !== undefined) {
-        texture.image = texData.image;
-      } else if (texData.data !== undefined) {
-        texture.image.width = texData.width;
-        texture.image.height = texData.height;
-        texture.image.data = texData.data;
-      }
-
-      texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping;
-      texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping;
-      texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter;
-      texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearFilter;
-      texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1;
-
-      if (texData.encoding !== undefined) {
-        texture.encoding = texData.encoding;
-      }
-
-      if (texData.flipY !== undefined) {
-        texture.flipY = texData.flipY;
-      }
-
-      if (texData.format !== undefined) {
-        texture.format = texData.format;
-      }
-
-      if (texData.type !== undefined) {
-        texture.type = texData.type;
-      }
-
-      if (texData.mipmaps !== undefined) {
-        texture.mipmaps = texData.mipmaps;
-        texture.minFilter = LinearMipmapLinearFilter; // presumably...
-      }
-
-      if (texData.mipmapCount === 1) {
-        texture.minFilter = LinearFilter;
-      }
-
-      texture.needsUpdate = true;
-      if (onLoad) onLoad(texture, texData);
-    }, onProgress, onError);
-    return texture;
-  }
-});
-
-function TextureLoader(manager) {
-  Loader.call(this, manager);
-}
-
-TextureLoader.prototype = Object.assign(Object.create(Loader.prototype), {
-  constructor: TextureLoader,
-  load: function (url, onLoad, onProgress, onError) {
-    const texture = new Texture();
-    const loader = new ImageLoader(this.manager);
-    loader.setCrossOrigin(this.crossOrigin);
-    loader.setPath(this.path);
-    loader.load(url, function (image) {
-      texture.image = image; // JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.
-
-      const isJPEG = url.search(/\.jpe?g($|\?)/i) > 0 || url.search(/^data\:image\/jpeg/) === 0;
-      texture.format = isJPEG ? RGBFormat : RGBAFormat;
-      texture.needsUpdate = true;
-
-      if (onLoad !== undefined) {
-        onLoad(texture);
-      }
-    }, onProgress, onError);
-    return texture;
-  }
-});
-/**
- * Extensible curve object.
- *
- * Some common of curve methods:
- * .getPoint( t, optionalTarget ), .getTangent( t, optionalTarget )
- * .getPointAt( u, optionalTarget ), .getTangentAt( u, optionalTarget )
- * .getPoints(), .getSpacedPoints()
- * .getLength()
- * .updateArcLengths()
- *
- * This following curves inherit from THREE.Curve:
- *
- * -- 2D curves --
- * THREE.ArcCurve
- * THREE.CubicBezierCurve
- * THREE.EllipseCurve
- * THREE.LineCurve
- * THREE.QuadraticBezierCurve
- * THREE.SplineCurve
- *
- * -- 3D curves --
- * THREE.CatmullRomCurve3
- * THREE.CubicBezierCurve3
- * THREE.LineCurve3
- * THREE.QuadraticBezierCurve3
- *
- * A series of curves can be represented as a THREE.CurvePath.
- *
- **/
-
-function Curve() {
-  this.type = 'Curve';
-  this.arcLengthDivisions = 200;
-}
-
-Object.assign(Curve.prototype, {
-  // Virtual base class method to overwrite and implement in subclasses
-  //	- t [0 .. 1]
-  getPoint: function ()
-  /* t, optionalTarget */
-  {
-    console.warn('THREE.Curve: .getPoint() not implemented.');
-    return null;
-  },
-  // Get point at relative position in curve according to arc length
-  // - u [0 .. 1]
-  getPointAt: function (u, optionalTarget) {
-    const t = this.getUtoTmapping(u);
-    return this.getPoint(t, optionalTarget);
-  },
-  // Get sequence of points using getPoint( t )
-  getPoints: function (divisions = 5) {
-    const points = [];
-
-    for (let d = 0; d <= divisions; d++) {
-      points.push(this.getPoint(d / divisions));
-    }
-
-    return points;
-  },
-  // Get sequence of points using getPointAt( u )
-  getSpacedPoints: function (divisions = 5) {
-    const points = [];
-
-    for (let d = 0; d <= divisions; d++) {
-      points.push(this.getPointAt(d / divisions));
-    }
-
-    return points;
-  },
-  // Get total curve arc length
-  getLength: function () {
-    const lengths = this.getLengths();
-    return lengths[lengths.length - 1];
-  },
-  // Get list of cumulative segment lengths
-  getLengths: function (divisions) {
-    if (divisions === undefined) divisions = this.arcLengthDivisions;
-
-    if (this.cacheArcLengths && this.cacheArcLengths.length === divisions + 1 && !this.needsUpdate) {
-      return this.cacheArcLengths;
-    }
-
-    this.needsUpdate = false;
-    const cache = [];
-    let current,
-        last = this.getPoint(0);
-    let sum = 0;
-    cache.push(0);
-
-    for (let p = 1; p <= divisions; p++) {
-      current = this.getPoint(p / divisions);
-      sum += current.distanceTo(last);
-      cache.push(sum);
-      last = current;
-    }
-
-    this.cacheArcLengths = cache;
-    return cache; // { sums: cache, sum: sum }; Sum is in the last element.
-  },
-  updateArcLengths: function () {
-    this.needsUpdate = true;
-    this.getLengths();
-  },
-  // Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant
-  getUtoTmapping: function (u, distance) {
-    const arcLengths = this.getLengths();
-    let i = 0;
-    const il = arcLengths.length;
-    let targetArcLength; // The targeted u distance value to get
-
-    if (distance) {
-      targetArcLength = distance;
-    } else {
-      targetArcLength = u * arcLengths[il - 1];
-    } // binary search for the index with largest value smaller than target u distance
-
-
-    let low = 0,
-        high = il - 1,
-        comparison;
-
-    while (low <= high) {
-      i = Math.floor(low + (high - low) / 2); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats
-
-      comparison = arcLengths[i] - targetArcLength;
-
-      if (comparison < 0) {
-        low = i + 1;
-      } else if (comparison > 0) {
-        high = i - 1;
-      } else {
-        high = i;
-        break; // DONE
-      }
-    }
-
-    i = high;
-
-    if (arcLengths[i] === targetArcLength) {
-      return i / (il - 1);
-    } // we could get finer grain at lengths, or use simple interpolation between two points
-
-
-    const lengthBefore = arcLengths[i];
-    const lengthAfter = arcLengths[i + 1];
-    const segmentLength = lengthAfter - lengthBefore; // determine where we are between the 'before' and 'after' points
-
-    const segmentFraction = (targetArcLength - lengthBefore) / segmentLength; // add that fractional amount to t
-
-    const t = (i + segmentFraction) / (il - 1);
-    return t;
-  },
-  // Returns a unit vector tangent at t
-  // In case any sub curve does not implement its tangent derivation,
-  // 2 points a small delta apart will be used to find its gradient
-  // which seems to give a reasonable approximation
-  getTangent: function (t, optionalTarget) {
-    const delta = 0.0001;
-    let t1 = t - delta;
-    let t2 = t + delta; // Capping in case of danger
-
-    if (t1 < 0) t1 = 0;
-    if (t2 > 1) t2 = 1;
-    const pt1 = this.getPoint(t1);
-    const pt2 = this.getPoint(t2);
-    const tangent = optionalTarget || (pt1.isVector2 ? new Vector2() : new Vector3());
-    tangent.copy(pt2).sub(pt1).normalize();
-    return tangent;
-  },
-  getTangentAt: function (u, optionalTarget) {
-    const t = this.getUtoTmapping(u);
-    return this.getTangent(t, optionalTarget);
-  },
-  computeFrenetFrames: function (segments, closed) {
-    // see http://www.cs.indiana.edu/pub/techreports/TR425.pdf
-    const normal = new Vector3();
-    const tangents = [];
-    const normals = [];
-    const binormals = [];
-    const vec = new Vector3();
-    const mat = new Matrix4(); // compute the tangent vectors for each segment on the curve
-
-    for (let i = 0; i <= segments; i++) {
-      const u = i / segments;
-      tangents[i] = this.getTangentAt(u, new Vector3());
-      tangents[i].normalize();
-    } // select an initial normal vector perpendicular to the first tangent vector,
-    // and in the direction of the minimum tangent xyz component
-
-
-    normals[0] = new Vector3();
-    binormals[0] = new Vector3();
-    let min = Number.MAX_VALUE;
-    const tx = Math.abs(tangents[0].x);
-    const ty = Math.abs(tangents[0].y);
-    const tz = Math.abs(tangents[0].z);
-
-    if (tx <= min) {
-      min = tx;
-      normal.set(1, 0, 0);
-    }
-
-    if (ty <= min) {
-      min = ty;
-      normal.set(0, 1, 0);
-    }
-
-    if (tz <= min) {
-      normal.set(0, 0, 1);
-    }
-
-    vec.crossVectors(tangents[0], normal).normalize();
-    normals[0].crossVectors(tangents[0], vec);
-    binormals[0].crossVectors(tangents[0], normals[0]); // compute the slowly-varying normal and binormal vectors for each segment on the curve
-
-    for (let i = 1; i <= segments; i++) {
-      normals[i] = normals[i - 1].clone();
-      binormals[i] = binormals[i - 1].clone();
-      vec.crossVectors(tangents[i - 1], tangents[i]);
-
-      if (vec.length() > Number.EPSILON) {
-        vec.normalize();
-        const theta = Math.acos(MathUtils.clamp(tangents[i - 1].dot(tangents[i]), -1, 1)); // clamp for floating pt errors
-
-        normals[i].applyMatrix4(mat.makeRotationAxis(vec, theta));
-      }
-
-      binormals[i].crossVectors(tangents[i], normals[i]);
-    } // if the curve is closed, postprocess the vectors so the first and last normal vectors are the same
-
-
-    if (closed === true) {
-      let theta = Math.acos(MathUtils.clamp(normals[0].dot(normals[segments]), -1, 1));
-      theta /= segments;
-
-      if (tangents[0].dot(vec.crossVectors(normals[0], normals[segments])) > 0) {
-        theta = -theta;
-      }
-
-      for (let i = 1; i <= segments; i++) {
-        // twist a little...
-        normals[i].applyMatrix4(mat.makeRotationAxis(tangents[i], theta * i));
-        binormals[i].crossVectors(tangents[i], normals[i]);
-      }
-    }
-
-    return {
-      tangents: tangents,
-      normals: normals,
-      binormals: binormals
-    };
-  },
-  clone: function () {
-    return new this.constructor().copy(this);
-  },
-  copy: function (source) {
-    this.arcLengthDivisions = source.arcLengthDivisions;
-    return this;
-  },
-  toJSON: function () {
-    const data = {
-      metadata: {
-        version: 4.5,
-        type: 'Curve',
-        generator: 'Curve.toJSON'
-      }
-    };
-    data.arcLengthDivisions = this.arcLengthDivisions;
-    data.type = this.type;
-    return data;
-  },
-  fromJSON: function (json) {
-    this.arcLengthDivisions = json.arcLengthDivisions;
-    return this;
-  }
-});
-
-class EllipseCurve extends Curve {
-  constructor(aX = 0, aY = 0, xRadius = 1, yRadius = 1, aStartAngle = 0, aEndAngle = Math.PI * 2, aClockwise = false, aRotation = 0) {
-    super();
-    this.type = 'EllipseCurve';
-    this.aX = aX;
-    this.aY = aY;
-    this.xRadius = xRadius;
-    this.yRadius = yRadius;
-    this.aStartAngle = aStartAngle;
-    this.aEndAngle = aEndAngle;
-    this.aClockwise = aClockwise;
-    this.aRotation = aRotation;
-  }
-
-  getPoint(t, optionalTarget) {
-    const point = optionalTarget || new Vector2();
-    const twoPi = Math.PI * 2;
-    let deltaAngle = this.aEndAngle - this.aStartAngle;
-    const samePoints = Math.abs(deltaAngle) < Number.EPSILON; // ensures that deltaAngle is 0 .. 2 PI
-
-    while (deltaAngle < 0) deltaAngle += twoPi;
-
-    while (deltaAngle > twoPi) deltaAngle -= twoPi;
-
-    if (deltaAngle < Number.EPSILON) {
-      if (samePoints) {
-        deltaAngle = 0;
-      } else {
-        deltaAngle = twoPi;
-      }
-    }
-
-    if (this.aClockwise === true && !samePoints) {
-      if (deltaAngle === twoPi) {
-        deltaAngle = -twoPi;
-      } else {
-        deltaAngle = deltaAngle - twoPi;
-      }
-    }
-
-    const angle = this.aStartAngle + t * deltaAngle;
-    let x = this.aX + this.xRadius * Math.cos(angle);
-    let y = this.aY + this.yRadius * Math.sin(angle);
-
-    if (this.aRotation !== 0) {
-      const cos = Math.cos(this.aRotation);
-      const sin = Math.sin(this.aRotation);
-      const tx = x - this.aX;
-      const ty = y - this.aY; // Rotate the point about the center of the ellipse.
-
-      x = tx * cos - ty * sin + this.aX;
-      y = tx * sin + ty * cos + this.aY;
-    }
-
-    return point.set(x, y);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.aX = source.aX;
-    this.aY = source.aY;
-    this.xRadius = source.xRadius;
-    this.yRadius = source.yRadius;
-    this.aStartAngle = source.aStartAngle;
-    this.aEndAngle = source.aEndAngle;
-    this.aClockwise = source.aClockwise;
-    this.aRotation = source.aRotation;
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.aX = this.aX;
-    data.aY = this.aY;
-    data.xRadius = this.xRadius;
-    data.yRadius = this.yRadius;
-    data.aStartAngle = this.aStartAngle;
-    data.aEndAngle = this.aEndAngle;
-    data.aClockwise = this.aClockwise;
-    data.aRotation = this.aRotation;
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.aX = json.aX;
-    this.aY = json.aY;
-    this.xRadius = json.xRadius;
-    this.yRadius = json.yRadius;
-    this.aStartAngle = json.aStartAngle;
-    this.aEndAngle = json.aEndAngle;
-    this.aClockwise = json.aClockwise;
-    this.aRotation = json.aRotation;
-    return this;
-  }
-
-}
-
-exports.EllipseCurve = EllipseCurve;
-EllipseCurve.prototype.isEllipseCurve = true;
-
-class ArcCurve extends EllipseCurve {
-  constructor(aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
-    super(aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise);
-    this.type = 'ArcCurve';
-  }
-
-}
-
-exports.ArcCurve = ArcCurve;
-ArcCurve.prototype.isArcCurve = true;
-/**
- * Centripetal CatmullRom Curve - which is useful for avoiding
- * cusps and self-intersections in non-uniform catmull rom curves.
- * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
- *
- * curve.type accepts centripetal(default), chordal and catmullrom
- * curve.tension is used for catmullrom which defaults to 0.5
- */
-
-/*
-Based on an optimized c++ solution in
- - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
- - http://ideone.com/NoEbVM
-
-This CubicPoly class could be used for reusing some variables and calculations,
-but for three.js curve use, it could be possible inlined and flatten into a single function call
-which can be placed in CurveUtils.
-*/
-
-function CubicPoly() {
-  let c0 = 0,
-      c1 = 0,
-      c2 = 0,
-      c3 = 0;
-  /*
-   * Compute coefficients for a cubic polynomial
-   *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
-   * such that
-   *   p(0) = x0, p(1) = x1
-   *  and
-   *   p'(0) = t0, p'(1) = t1.
-   */
-
-  function init(x0, x1, t0, t1) {
-    c0 = x0;
-    c1 = t0;
-    c2 = -3 * x0 + 3 * x1 - 2 * t0 - t1;
-    c3 = 2 * x0 - 2 * x1 + t0 + t1;
-  }
-
-  return {
-    initCatmullRom: function (x0, x1, x2, x3, tension) {
-      init(x1, x2, tension * (x2 - x0), tension * (x3 - x1));
-    },
-    initNonuniformCatmullRom: function (x0, x1, x2, x3, dt0, dt1, dt2) {
-      // compute tangents when parameterized in [t1,t2]
-      let t1 = (x1 - x0) / dt0 - (x2 - x0) / (dt0 + dt1) + (x2 - x1) / dt1;
-      let t2 = (x2 - x1) / dt1 - (x3 - x1) / (dt1 + dt2) + (x3 - x2) / dt2; // rescale tangents for parametrization in [0,1]
-
-      t1 *= dt1;
-      t2 *= dt1;
-      init(x1, x2, t1, t2);
-    },
-    calc: function (t) {
-      const t2 = t * t;
-      const t3 = t2 * t;
-      return c0 + c1 * t + c2 * t2 + c3 * t3;
-    }
-  };
-} //
-
-
-const tmp = new Vector3();
-const px = new CubicPoly(),
-      py = new CubicPoly(),
-      pz = new CubicPoly();
-
-class CatmullRomCurve3 extends Curve {
-  constructor(points = [], closed = false, curveType = 'centripetal', tension = 0.5) {
-    super();
-    this.type = 'CatmullRomCurve3';
-    this.points = points;
-    this.closed = closed;
-    this.curveType = curveType;
-    this.tension = tension;
-  }
-
-  getPoint(t, optionalTarget = new Vector3()) {
-    const point = optionalTarget;
-    const points = this.points;
-    const l = points.length;
-    const p = (l - (this.closed ? 0 : 1)) * t;
-    let intPoint = Math.floor(p);
-    let weight = p - intPoint;
-
-    if (this.closed) {
-      intPoint += intPoint > 0 ? 0 : (Math.floor(Math.abs(intPoint) / l) + 1) * l;
-    } else if (weight === 0 && intPoint === l - 1) {
-      intPoint = l - 2;
-      weight = 1;
-    }
-
-    let p0, p3; // 4 points (p1 & p2 defined below)
-
-    if (this.closed || intPoint > 0) {
-      p0 = points[(intPoint - 1) % l];
-    } else {
-      // extrapolate first point
-      tmp.subVectors(points[0], points[1]).add(points[0]);
-      p0 = tmp;
-    }
-
-    const p1 = points[intPoint % l];
-    const p2 = points[(intPoint + 1) % l];
-
-    if (this.closed || intPoint + 2 < l) {
-      p3 = points[(intPoint + 2) % l];
-    } else {
-      // extrapolate last point
-      tmp.subVectors(points[l - 1], points[l - 2]).add(points[l - 1]);
-      p3 = tmp;
-    }
-
-    if (this.curveType === 'centripetal' || this.curveType === 'chordal') {
-      // init Centripetal / Chordal Catmull-Rom
-      const pow = this.curveType === 'chordal' ? 0.5 : 0.25;
-      let dt0 = Math.pow(p0.distanceToSquared(p1), pow);
-      let dt1 = Math.pow(p1.distanceToSquared(p2), pow);
-      let dt2 = Math.pow(p2.distanceToSquared(p3), pow); // safety check for repeated points
-
-      if (dt1 < 1e-4) dt1 = 1.0;
-      if (dt0 < 1e-4) dt0 = dt1;
-      if (dt2 < 1e-4) dt2 = dt1;
-      px.initNonuniformCatmullRom(p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2);
-      py.initNonuniformCatmullRom(p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2);
-      pz.initNonuniformCatmullRom(p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2);
-    } else if (this.curveType === 'catmullrom') {
-      px.initCatmullRom(p0.x, p1.x, p2.x, p3.x, this.tension);
-      py.initCatmullRom(p0.y, p1.y, p2.y, p3.y, this.tension);
-      pz.initCatmullRom(p0.z, p1.z, p2.z, p3.z, this.tension);
-    }
-
-    point.set(px.calc(weight), py.calc(weight), pz.calc(weight));
-    return point;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.points = [];
-
-    for (let i = 0, l = source.points.length; i < l; i++) {
-      const point = source.points[i];
-      this.points.push(point.clone());
-    }
-
-    this.closed = source.closed;
-    this.curveType = source.curveType;
-    this.tension = source.tension;
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.points = [];
-
-    for (let i = 0, l = this.points.length; i < l; i++) {
-      const point = this.points[i];
-      data.points.push(point.toArray());
-    }
-
-    data.closed = this.closed;
-    data.curveType = this.curveType;
-    data.tension = this.tension;
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.points = [];
-
-    for (let i = 0, l = json.points.length; i < l; i++) {
-      const point = json.points[i];
-      this.points.push(new Vector3().fromArray(point));
-    }
-
-    this.closed = json.closed;
-    this.curveType = json.curveType;
-    this.tension = json.tension;
-    return this;
-  }
-
-}
-
-exports.CatmullRomCurve3 = CatmullRomCurve3;
-CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;
-/**
- * Bezier Curves formulas obtained from
- * http://en.wikipedia.org/wiki/Bézier_curve
- */
-
-function CatmullRom(t, p0, p1, p2, p3) {
-  const v0 = (p2 - p0) * 0.5;
-  const v1 = (p3 - p1) * 0.5;
-  const t2 = t * t;
-  const t3 = t * t2;
-  return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (-3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
-} //
-
-
-function QuadraticBezierP0(t, p) {
-  const k = 1 - t;
-  return k * k * p;
-}
-
-function QuadraticBezierP1(t, p) {
-  return 2 * (1 - t) * t * p;
-}
-
-function QuadraticBezierP2(t, p) {
-  return t * t * p;
-}
-
-function QuadraticBezier(t, p0, p1, p2) {
-  return QuadraticBezierP0(t, p0) + QuadraticBezierP1(t, p1) + QuadraticBezierP2(t, p2);
-} //
-
-
-function CubicBezierP0(t, p) {
-  const k = 1 - t;
-  return k * k * k * p;
-}
-
-function CubicBezierP1(t, p) {
-  const k = 1 - t;
-  return 3 * k * k * t * p;
-}
-
-function CubicBezierP2(t, p) {
-  return 3 * (1 - t) * t * t * p;
-}
-
-function CubicBezierP3(t, p) {
-  return t * t * t * p;
-}
-
-function CubicBezier(t, p0, p1, p2, p3) {
-  return CubicBezierP0(t, p0) + CubicBezierP1(t, p1) + CubicBezierP2(t, p2) + CubicBezierP3(t, p3);
-}
-
-class CubicBezierCurve extends Curve {
-  constructor(v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2(), v3 = new Vector2()) {
-    super();
-    this.type = 'CubicBezierCurve';
-    this.v0 = v0;
-    this.v1 = v1;
-    this.v2 = v2;
-    this.v3 = v3;
-  }
-
-  getPoint(t, optionalTarget = new Vector2()) {
-    const point = optionalTarget;
-    const v0 = this.v0,
-          v1 = this.v1,
-          v2 = this.v2,
-          v3 = this.v3;
-    point.set(CubicBezier(t, v0.x, v1.x, v2.x, v3.x), CubicBezier(t, v0.y, v1.y, v2.y, v3.y));
-    return point;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.v0.copy(source.v0);
-    this.v1.copy(source.v1);
-    this.v2.copy(source.v2);
-    this.v3.copy(source.v3);
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.v0 = this.v0.toArray();
-    data.v1 = this.v1.toArray();
-    data.v2 = this.v2.toArray();
-    data.v3 = this.v3.toArray();
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.v0.fromArray(json.v0);
-    this.v1.fromArray(json.v1);
-    this.v2.fromArray(json.v2);
-    this.v3.fromArray(json.v3);
-    return this;
-  }
-
-}
-
-exports.CubicBezierCurve = CubicBezierCurve;
-CubicBezierCurve.prototype.isCubicBezierCurve = true;
-
-class CubicBezierCurve3 extends Curve {
-  constructor(v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3(), v3 = new Vector3()) {
-    super();
-    this.type = 'CubicBezierCurve3';
-    this.v0 = v0;
-    this.v1 = v1;
-    this.v2 = v2;
-    this.v3 = v3;
-  }
-
-  getPoint(t, optionalTarget = new Vector3()) {
-    const point = optionalTarget;
-    const v0 = this.v0,
-          v1 = this.v1,
-          v2 = this.v2,
-          v3 = this.v3;
-    point.set(CubicBezier(t, v0.x, v1.x, v2.x, v3.x), CubicBezier(t, v0.y, v1.y, v2.y, v3.y), CubicBezier(t, v0.z, v1.z, v2.z, v3.z));
-    return point;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.v0.copy(source.v0);
-    this.v1.copy(source.v1);
-    this.v2.copy(source.v2);
-    this.v3.copy(source.v3);
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.v0 = this.v0.toArray();
-    data.v1 = this.v1.toArray();
-    data.v2 = this.v2.toArray();
-    data.v3 = this.v3.toArray();
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.v0.fromArray(json.v0);
-    this.v1.fromArray(json.v1);
-    this.v2.fromArray(json.v2);
-    this.v3.fromArray(json.v3);
-    return this;
-  }
-
-}
-
-exports.CubicBezierCurve3 = CubicBezierCurve3;
-CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;
-
-class LineCurve extends Curve {
-  constructor(v1 = new Vector2(), v2 = new Vector2()) {
-    super();
-    this.type = 'LineCurve';
-    this.v1 = v1;
-    this.v2 = v2;
-  }
-
-  getPoint(t, optionalTarget = new Vector2()) {
-    const point = optionalTarget;
-
-    if (t === 1) {
-      point.copy(this.v2);
-    } else {
-      point.copy(this.v2).sub(this.v1);
-      point.multiplyScalar(t).add(this.v1);
-    }
-
-    return point;
-  } // Line curve is linear, so we can overwrite default getPointAt
-
-
-  getPointAt(u, optionalTarget) {
-    return this.getPoint(u, optionalTarget);
-  }
-
-  getTangent(t, optionalTarget) {
-    const tangent = optionalTarget || new Vector2();
-    tangent.copy(this.v2).sub(this.v1).normalize();
-    return tangent;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.v1.copy(source.v1);
-    this.v2.copy(source.v2);
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.v1 = this.v1.toArray();
-    data.v2 = this.v2.toArray();
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.v1.fromArray(json.v1);
-    this.v2.fromArray(json.v2);
-    return this;
-  }
-
-}
-
-exports.LineCurve = LineCurve;
-LineCurve.prototype.isLineCurve = true;
-
-class LineCurve3 extends Curve {
-  constructor(v1 = new Vector3(), v2 = new Vector3()) {
-    super();
-    this.type = 'LineCurve3';
-    this.isLineCurve3 = true;
-    this.v1 = v1;
-    this.v2 = v2;
-  }
-
-  getPoint(t, optionalTarget = new Vector3()) {
-    const point = optionalTarget;
-
-    if (t === 1) {
-      point.copy(this.v2);
-    } else {
-      point.copy(this.v2).sub(this.v1);
-      point.multiplyScalar(t).add(this.v1);
-    }
-
-    return point;
-  } // Line curve is linear, so we can overwrite default getPointAt
-
-
-  getPointAt(u, optionalTarget) {
-    return this.getPoint(u, optionalTarget);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.v1.copy(source.v1);
-    this.v2.copy(source.v2);
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.v1 = this.v1.toArray();
-    data.v2 = this.v2.toArray();
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.v1.fromArray(json.v1);
-    this.v2.fromArray(json.v2);
-    return this;
-  }
-
-}
-
-exports.LineCurve3 = LineCurve3;
-
-class QuadraticBezierCurve extends Curve {
-  constructor(v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2()) {
-    super();
-    this.type = 'QuadraticBezierCurve';
-    this.v0 = v0;
-    this.v1 = v1;
-    this.v2 = v2;
-  }
-
-  getPoint(t, optionalTarget = new Vector2()) {
-    const point = optionalTarget;
-    const v0 = this.v0,
-          v1 = this.v1,
-          v2 = this.v2;
-    point.set(QuadraticBezier(t, v0.x, v1.x, v2.x), QuadraticBezier(t, v0.y, v1.y, v2.y));
-    return point;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.v0.copy(source.v0);
-    this.v1.copy(source.v1);
-    this.v2.copy(source.v2);
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.v0 = this.v0.toArray();
-    data.v1 = this.v1.toArray();
-    data.v2 = this.v2.toArray();
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.v0.fromArray(json.v0);
-    this.v1.fromArray(json.v1);
-    this.v2.fromArray(json.v2);
-    return this;
-  }
-
-}
-
-exports.QuadraticBezierCurve = QuadraticBezierCurve;
-QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;
-
-class QuadraticBezierCurve3 extends Curve {
-  constructor(v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3()) {
-    super();
-    this.type = 'QuadraticBezierCurve3';
-    this.v0 = v0;
-    this.v1 = v1;
-    this.v2 = v2;
-  }
-
-  getPoint(t, optionalTarget = new Vector3()) {
-    const point = optionalTarget;
-    const v0 = this.v0,
-          v1 = this.v1,
-          v2 = this.v2;
-    point.set(QuadraticBezier(t, v0.x, v1.x, v2.x), QuadraticBezier(t, v0.y, v1.y, v2.y), QuadraticBezier(t, v0.z, v1.z, v2.z));
-    return point;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.v0.copy(source.v0);
-    this.v1.copy(source.v1);
-    this.v2.copy(source.v2);
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.v0 = this.v0.toArray();
-    data.v1 = this.v1.toArray();
-    data.v2 = this.v2.toArray();
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.v0.fromArray(json.v0);
-    this.v1.fromArray(json.v1);
-    this.v2.fromArray(json.v2);
-    return this;
-  }
-
-}
-
-exports.QuadraticBezierCurve3 = QuadraticBezierCurve3;
-QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;
-
-class SplineCurve extends Curve {
-  constructor(points = []) {
-    super();
-    this.type = 'SplineCurve';
-    this.points = points;
-  }
-
-  getPoint(t, optionalTarget = new Vector2()) {
-    const point = optionalTarget;
-    const points = this.points;
-    const p = (points.length - 1) * t;
-    const intPoint = Math.floor(p);
-    const weight = p - intPoint;
-    const p0 = points[intPoint === 0 ? intPoint : intPoint - 1];
-    const p1 = points[intPoint];
-    const p2 = points[intPoint > points.length - 2 ? points.length - 1 : intPoint + 1];
-    const p3 = points[intPoint > points.length - 3 ? points.length - 1 : intPoint + 2];
-    point.set(CatmullRom(weight, p0.x, p1.x, p2.x, p3.x), CatmullRom(weight, p0.y, p1.y, p2.y, p3.y));
-    return point;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.points = [];
-
-    for (let i = 0, l = source.points.length; i < l; i++) {
-      const point = source.points[i];
-      this.points.push(point.clone());
-    }
-
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.points = [];
-
-    for (let i = 0, l = this.points.length; i < l; i++) {
-      const point = this.points[i];
-      data.points.push(point.toArray());
-    }
-
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.points = [];
-
-    for (let i = 0, l = json.points.length; i < l; i++) {
-      const point = json.points[i];
-      this.points.push(new Vector2().fromArray(point));
-    }
-
-    return this;
-  }
-
-}
-
-exports.SplineCurve = SplineCurve;
-SplineCurve.prototype.isSplineCurve = true;
-var Curves =
-/*#__PURE__*/
-Object.freeze({
-  __proto__: null,
-  ArcCurve: ArcCurve,
-  CatmullRomCurve3: CatmullRomCurve3,
-  CubicBezierCurve: CubicBezierCurve,
-  CubicBezierCurve3: CubicBezierCurve3,
-  EllipseCurve: EllipseCurve,
-  LineCurve: LineCurve,
-  LineCurve3: LineCurve3,
-  QuadraticBezierCurve: QuadraticBezierCurve,
-  QuadraticBezierCurve3: QuadraticBezierCurve3,
-  SplineCurve: SplineCurve
-});
-/**************************************************************
- *	Curved Path - a curve path is simply a array of connected
- *  curves, but retains the api of a curve
- **************************************************************/
-
-class CurvePath extends Curve {
-  constructor() {
-    super();
-    this.type = 'CurvePath';
-    this.curves = [];
-    this.autoClose = false; // Automatically closes the path
-  }
-
-  add(curve) {
-    this.curves.push(curve);
-  }
-
-  closePath() {
-    // Add a line curve if start and end of lines are not connected
-    const startPoint = this.curves[0].getPoint(0);
-    const endPoint = this.curves[this.curves.length - 1].getPoint(1);
-
-    if (!startPoint.equals(endPoint)) {
-      this.curves.push(new LineCurve(endPoint, startPoint));
-    }
-  } // To get accurate point with reference to
-  // entire path distance at time t,
-  // following has to be done:
-  // 1. Length of each sub path have to be known
-  // 2. Locate and identify type of curve
-  // 3. Get t for the curve
-  // 4. Return curve.getPointAt(t')
-
-
-  getPoint(t) {
-    const d = t * this.getLength();
-    const curveLengths = this.getCurveLengths();
-    let i = 0; // To think about boundaries points.
-
-    while (i < curveLengths.length) {
-      if (curveLengths[i] >= d) {
-        const diff = curveLengths[i] - d;
-        const curve = this.curves[i];
-        const segmentLength = curve.getLength();
-        const u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;
-        return curve.getPointAt(u);
-      }
-
-      i++;
-    }
-
-    return null; // loop where sum != 0, sum > d , sum+1 <d
-  } // We cannot use the default THREE.Curve getPoint() with getLength() because in
-  // THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
-  // getPoint() depends on getLength
-
-
-  getLength() {
-    const lens = this.getCurveLengths();
-    return lens[lens.length - 1];
-  } // cacheLengths must be recalculated.
-
-
-  updateArcLengths() {
-    this.needsUpdate = true;
-    this.cacheLengths = null;
-    this.getCurveLengths();
-  } // Compute lengths and cache them
-  // We cannot overwrite getLengths() because UtoT mapping uses it.
-
-
-  getCurveLengths() {
-    // We use cache values if curves and cache array are same length
-    if (this.cacheLengths && this.cacheLengths.length === this.curves.length) {
-      return this.cacheLengths;
-    } // Get length of sub-curve
-    // Push sums into cached array
-
-
-    const lengths = [];
-    let sums = 0;
-
-    for (let i = 0, l = this.curves.length; i < l; i++) {
-      sums += this.curves[i].getLength();
-      lengths.push(sums);
-    }
-
-    this.cacheLengths = lengths;
-    return lengths;
-  }
-
-  getSpacedPoints(divisions = 40) {
-    const points = [];
-
-    for (let i = 0; i <= divisions; i++) {
-      points.push(this.getPoint(i / divisions));
-    }
-
-    if (this.autoClose) {
-      points.push(points[0]);
-    }
-
-    return points;
-  }
-
-  getPoints(divisions = 12) {
-    const points = [];
-    let last;
-
-    for (let i = 0, curves = this.curves; i < curves.length; i++) {
-      const curve = curves[i];
-      const resolution = curve && curve.isEllipseCurve ? divisions * 2 : curve && (curve.isLineCurve || curve.isLineCurve3) ? 1 : curve && curve.isSplineCurve ? divisions * curve.points.length : divisions;
-      const pts = curve.getPoints(resolution);
-
-      for (let j = 0; j < pts.length; j++) {
-        const point = pts[j];
-        if (last && last.equals(point)) continue; // ensures no consecutive points are duplicates
-
-        points.push(point);
-        last = point;
-      }
-    }
-
-    if (this.autoClose && points.length > 1 && !points[points.length - 1].equals(points[0])) {
-      points.push(points[0]);
-    }
-
-    return points;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.curves = [];
-
-    for (let i = 0, l = source.curves.length; i < l; i++) {
-      const curve = source.curves[i];
-      this.curves.push(curve.clone());
-    }
-
-    this.autoClose = source.autoClose;
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.autoClose = this.autoClose;
-    data.curves = [];
-
-    for (let i = 0, l = this.curves.length; i < l; i++) {
-      const curve = this.curves[i];
-      data.curves.push(curve.toJSON());
-    }
-
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.autoClose = json.autoClose;
-    this.curves = [];
-
-    for (let i = 0, l = json.curves.length; i < l; i++) {
-      const curve = json.curves[i];
-      this.curves.push(new Curves[curve.type]().fromJSON(curve));
-    }
-
-    return this;
-  }
-
-}
-
-exports.CurvePath = CurvePath;
-
-class Path extends CurvePath {
-  constructor(points) {
-    super();
-    this.type = 'Path';
-    this.currentPoint = new Vector2();
-
-    if (points) {
-      this.setFromPoints(points);
-    }
-  }
-
-  setFromPoints(points) {
-    this.moveTo(points[0].x, points[0].y);
-
-    for (let i = 1, l = points.length; i < l; i++) {
-      this.lineTo(points[i].x, points[i].y);
-    }
-
-    return this;
-  }
-
-  moveTo(x, y) {
-    this.currentPoint.set(x, y); // TODO consider referencing vectors instead of copying?
-
-    return this;
-  }
-
-  lineTo(x, y) {
-    const curve = new LineCurve(this.currentPoint.clone(), new Vector2(x, y));
-    this.curves.push(curve);
-    this.currentPoint.set(x, y);
-    return this;
-  }
-
-  quadraticCurveTo(aCPx, aCPy, aX, aY) {
-    const curve = new QuadraticBezierCurve(this.currentPoint.clone(), new Vector2(aCPx, aCPy), new Vector2(aX, aY));
-    this.curves.push(curve);
-    this.currentPoint.set(aX, aY);
-    return this;
-  }
-
-  bezierCurveTo(aCP1x, aCP1y, aCP2x, aCP2y, aX, aY) {
-    const curve = new CubicBezierCurve(this.currentPoint.clone(), new Vector2(aCP1x, aCP1y), new Vector2(aCP2x, aCP2y), new Vector2(aX, aY));
-    this.curves.push(curve);
-    this.currentPoint.set(aX, aY);
-    return this;
-  }
-
-  splineThru(pts
-  /*Array of Vector*/
-  ) {
-    const npts = [this.currentPoint.clone()].concat(pts);
-    const curve = new SplineCurve(npts);
-    this.curves.push(curve);
-    this.currentPoint.copy(pts[pts.length - 1]);
-    return this;
-  }
-
-  arc(aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
-    const x0 = this.currentPoint.x;
-    const y0 = this.currentPoint.y;
-    this.absarc(aX + x0, aY + y0, aRadius, aStartAngle, aEndAngle, aClockwise);
-    return this;
-  }
-
-  absarc(aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
-    this.absellipse(aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise);
-    return this;
-  }
-
-  ellipse(aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation) {
-    const x0 = this.currentPoint.x;
-    const y0 = this.currentPoint.y;
-    this.absellipse(aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation);
-    return this;
-  }
-
-  absellipse(aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation) {
-    const curve = new EllipseCurve(aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation);
-
-    if (this.curves.length > 0) {
-      // if a previous curve is present, attempt to join
-      const firstPoint = curve.getPoint(0);
-
-      if (!firstPoint.equals(this.currentPoint)) {
-        this.lineTo(firstPoint.x, firstPoint.y);
-      }
-    }
-
-    this.curves.push(curve);
-    const lastPoint = curve.getPoint(1);
-    this.currentPoint.copy(lastPoint);
-    return this;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.currentPoint.copy(source.currentPoint);
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.currentPoint = this.currentPoint.toArray();
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.currentPoint.fromArray(json.currentPoint);
-    return this;
-  }
-
-}
-
-exports.Path = Path;
-
-class Shape extends Path {
-  constructor(points) {
-    super(points);
-    this.uuid = MathUtils.generateUUID();
-    this.type = 'Shape';
-    this.holes = [];
-  }
-
-  getPointsHoles(divisions) {
-    const holesPts = [];
-
-    for (let i = 0, l = this.holes.length; i < l; i++) {
-      holesPts[i] = this.holes[i].getPoints(divisions);
-    }
-
-    return holesPts;
-  } // get points of shape and holes (keypoints based on segments parameter)
-
-
-  extractPoints(divisions) {
-    return {
-      shape: this.getPoints(divisions),
-      holes: this.getPointsHoles(divisions)
-    };
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.holes = [];
-
-    for (let i = 0, l = source.holes.length; i < l; i++) {
-      const hole = source.holes[i];
-      this.holes.push(hole.clone());
-    }
-
-    return this;
-  }
-
-  toJSON() {
-    const data = super.toJSON();
-    data.uuid = this.uuid;
-    data.holes = [];
-
-    for (let i = 0, l = this.holes.length; i < l; i++) {
-      const hole = this.holes[i];
-      data.holes.push(hole.toJSON());
-    }
-
-    return data;
-  }
-
-  fromJSON(json) {
-    super.fromJSON(json);
-    this.uuid = json.uuid;
-    this.holes = [];
-
-    for (let i = 0, l = json.holes.length; i < l; i++) {
-      const hole = json.holes[i];
-      this.holes.push(new Path().fromJSON(hole));
-    }
-
-    return this;
-  }
-
-}
-
-exports.Shape = Shape;
-
-class Light extends Object3D {
-  constructor(color, intensity = 1) {
-    super();
-    this.type = 'Light';
-    this.color = new Color(color);
-    this.intensity = intensity;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.color.copy(source.color);
-    this.intensity = source.intensity;
-    return this;
-  }
-
-  toJSON(meta) {
-    const data = super.toJSON(meta);
-    data.object.color = this.color.getHex();
-    data.object.intensity = this.intensity;
-    if (this.groundColor !== undefined) data.object.groundColor = this.groundColor.getHex();
-    if (this.distance !== undefined) data.object.distance = this.distance;
-    if (this.angle !== undefined) data.object.angle = this.angle;
-    if (this.decay !== undefined) data.object.decay = this.decay;
-    if (this.penumbra !== undefined) data.object.penumbra = this.penumbra;
-    if (this.shadow !== undefined) data.object.shadow = this.shadow.toJSON();
-    return data;
-  }
-
-}
-
-exports.Light = Light;
-Light.prototype.isLight = true;
-
-class HemisphereLight extends Light {
-  constructor(skyColor, groundColor, intensity) {
-    super(skyColor, intensity);
-    this.type = 'HemisphereLight';
-    this.position.copy(Object3D.DefaultUp);
-    this.updateMatrix();
-    this.groundColor = new Color(groundColor);
-  }
-
-  copy(source) {
-    Light.prototype.copy.call(this, source);
-    this.groundColor.copy(source.groundColor);
-    return this;
-  }
-
-}
-
-exports.HemisphereLight = HemisphereLight;
-HemisphereLight.prototype.isHemisphereLight = true;
-
-const _projScreenMatrix =
-/*@__PURE__*/
-new Matrix4();
-
-const _lightPositionWorld =
-/*@__PURE__*/
-new Vector3();
-
-const _lookTarget =
-/*@__PURE__*/
-new Vector3();
-
-class LightShadow {
-  constructor(camera) {
-    this.camera = camera;
-    this.bias = 0;
-    this.normalBias = 0;
-    this.radius = 1;
-    this.mapSize = new Vector2(512, 512);
-    this.map = null;
-    this.mapPass = null;
-    this.matrix = new Matrix4();
-    this.autoUpdate = true;
-    this.needsUpdate = false;
-    this._frustum = new Frustum();
-    this._frameExtents = new Vector2(1, 1);
-    this._viewportCount = 1;
-    this._viewports = [new Vector4(0, 0, 1, 1)];
-  }
-
-  getViewportCount() {
-    return this._viewportCount;
-  }
-
-  getFrustum() {
-    return this._frustum;
-  }
-
-  updateMatrices(light) {
-    const shadowCamera = this.camera;
-    const shadowMatrix = this.matrix;
-
-    _lightPositionWorld.setFromMatrixPosition(light.matrixWorld);
-
-    shadowCamera.position.copy(_lightPositionWorld);
-
-    _lookTarget.setFromMatrixPosition(light.target.matrixWorld);
-
-    shadowCamera.lookAt(_lookTarget);
-    shadowCamera.updateMatrixWorld();
-
-    _projScreenMatrix.multiplyMatrices(shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse);
-
-    this._frustum.setFromProjectionMatrix(_projScreenMatrix);
-
-    shadowMatrix.set(0.5, 0.0, 0.0, 0.5, 0.0, 0.5, 0.0, 0.5, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 1.0);
-    shadowMatrix.multiply(shadowCamera.projectionMatrix);
-    shadowMatrix.multiply(shadowCamera.matrixWorldInverse);
-  }
-
-  getViewport(viewportIndex) {
-    return this._viewports[viewportIndex];
-  }
-
-  getFrameExtents() {
-    return this._frameExtents;
-  }
-
-  copy(source) {
-    this.camera = source.camera.clone();
-    this.bias = source.bias;
-    this.radius = source.radius;
-    this.mapSize.copy(source.mapSize);
-    return this;
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-  toJSON() {
-    const object = {};
-    if (this.bias !== 0) object.bias = this.bias;
-    if (this.normalBias !== 0) object.normalBias = this.normalBias;
-    if (this.radius !== 1) object.radius = this.radius;
-    if (this.mapSize.x !== 512 || this.mapSize.y !== 512) object.mapSize = this.mapSize.toArray();
-    object.camera = this.camera.toJSON(false).object;
-    delete object.camera.matrix;
-    return object;
-  }
-
-}
-
-class SpotLightShadow extends LightShadow {
-  constructor() {
-    super(new PerspectiveCamera(50, 1, 0.5, 500));
-    this.focus = 1;
-  }
-
-  updateMatrices(light) {
-    const camera = this.camera;
-    const fov = MathUtils.RAD2DEG * 2 * light.angle * this.focus;
-    const aspect = this.mapSize.width / this.mapSize.height;
-    const far = light.distance || camera.far;
-
-    if (fov !== camera.fov || aspect !== camera.aspect || far !== camera.far) {
-      camera.fov = fov;
-      camera.aspect = aspect;
-      camera.far = far;
-      camera.updateProjectionMatrix();
-    }
-
-    super.updateMatrices(light);
-  }
-
-}
-
-SpotLightShadow.prototype.isSpotLightShadow = true;
-
-class SpotLight extends Light {
-  constructor(color, intensity, distance = 0, angle = Math.PI / 3, penumbra = 0, decay = 1) {
-    super(color, intensity);
-    this.type = 'SpotLight';
-    this.position.copy(Object3D.DefaultUp);
-    this.updateMatrix();
-    this.target = new Object3D();
-    this.distance = distance;
-    this.angle = angle;
-    this.penumbra = penumbra;
-    this.decay = decay; // for physically correct lights, should be 2.
-
-    this.shadow = new SpotLightShadow();
-  }
-
-  get power() {
-    // intensity = power per solid angle.
-    // ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-    return this.intensity * Math.PI;
-  }
-
-  set power(power) {
-    // intensity = power per solid angle.
-    // ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-    this.intensity = power / Math.PI;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.distance = source.distance;
-    this.angle = source.angle;
-    this.penumbra = source.penumbra;
-    this.decay = source.decay;
-    this.target = source.target.clone();
-    this.shadow = source.shadow.clone();
-    return this;
-  }
-
-}
-
-exports.SpotLight = SpotLight;
-SpotLight.prototype.isSpotLight = true;
-
-const _projScreenMatrix$1 =
-/*@__PURE__*/
-new Matrix4();
-
-const _lightPositionWorld$1 =
-/*@__PURE__*/
-new Vector3();
-
-const _lookTarget$1 =
-/*@__PURE__*/
-new Vector3();
-
-class PointLightShadow extends LightShadow {
-  constructor() {
-    super(new PerspectiveCamera(90, 1, 0.5, 500));
-    this._frameExtents = new Vector2(4, 2);
-    this._viewportCount = 6;
-    this._viewports = [// These viewports map a cube-map onto a 2D texture with the
-    // following orientation:
-    //
-    //  xzXZ
-    //   y Y
-    //
-    // X - Positive x direction
-    // x - Negative x direction
-    // Y - Positive y direction
-    // y - Negative y direction
-    // Z - Positive z direction
-    // z - Negative z direction
-    // positive X
-    new Vector4(2, 1, 1, 1), // negative X
-    new Vector4(0, 1, 1, 1), // positive Z
-    new Vector4(3, 1, 1, 1), // negative Z
-    new Vector4(1, 1, 1, 1), // positive Y
-    new Vector4(3, 0, 1, 1), // negative Y
-    new Vector4(1, 0, 1, 1)];
-    this._cubeDirections = [new Vector3(1, 0, 0), new Vector3(-1, 0, 0), new Vector3(0, 0, 1), new Vector3(0, 0, -1), new Vector3(0, 1, 0), new Vector3(0, -1, 0)];
-    this._cubeUps = [new Vector3(0, 1, 0), new Vector3(0, 1, 0), new Vector3(0, 1, 0), new Vector3(0, 1, 0), new Vector3(0, 0, 1), new Vector3(0, 0, -1)];
-  }
-
-  updateMatrices(light, viewportIndex = 0) {
-    const camera = this.camera;
-    const shadowMatrix = this.matrix;
-
-    _lightPositionWorld$1.setFromMatrixPosition(light.matrixWorld);
-
-    camera.position.copy(_lightPositionWorld$1);
-
-    _lookTarget$1.copy(camera.position);
-
-    _lookTarget$1.add(this._cubeDirections[viewportIndex]);
-
-    camera.up.copy(this._cubeUps[viewportIndex]);
-    camera.lookAt(_lookTarget$1);
-    camera.updateMatrixWorld();
-    shadowMatrix.makeTranslation(-_lightPositionWorld$1.x, -_lightPositionWorld$1.y, -_lightPositionWorld$1.z);
-
-    _projScreenMatrix$1.multiplyMatrices(camera.projectionMatrix, camera.matrixWorldInverse);
-
-    this._frustum.setFromProjectionMatrix(_projScreenMatrix$1);
-  }
-
-}
-
-PointLightShadow.prototype.isPointLightShadow = true;
-
-class PointLight extends Light {
-  constructor(color, intensity, distance = 0, decay = 1) {
-    super(color, intensity);
-    this.type = 'PointLight';
-    this.distance = distance;
-    this.decay = decay; // for physically correct lights, should be 2.
-
-    this.shadow = new PointLightShadow();
-  }
-
-  get power() {
-    // intensity = power per solid angle.
-    // ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-    return this.intensity * 4 * Math.PI;
-  }
-
-  set power(power) {
-    // intensity = power per solid angle.
-    // ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-    this.intensity = power / (4 * Math.PI);
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.distance = source.distance;
-    this.decay = source.decay;
-    this.shadow = source.shadow.clone();
-    return this;
-  }
-
-}
-
-exports.PointLight = PointLight;
-PointLight.prototype.isPointLight = true;
-
-class OrthographicCamera extends Camera {
-  constructor(left = -1, right = 1, top = 1, bottom = -1, near = 0.1, far = 2000) {
-    super();
-    this.type = 'OrthographicCamera';
-    this.zoom = 1;
-    this.view = null;
-    this.left = left;
-    this.right = right;
-    this.top = top;
-    this.bottom = bottom;
-    this.near = near;
-    this.far = far;
-    this.updateProjectionMatrix();
-  }
-
-  copy(source, recursive) {
-    super.copy(source, recursive);
-    this.left = source.left;
-    this.right = source.right;
-    this.top = source.top;
-    this.bottom = source.bottom;
-    this.near = source.near;
-    this.far = source.far;
-    this.zoom = source.zoom;
-    this.view = source.view === null ? null : Object.assign({}, source.view);
-    return this;
-  }
-
-  setViewOffset(fullWidth, fullHeight, x, y, width, height) {
-    if (this.view === null) {
-      this.view = {
-        enabled: true,
-        fullWidth: 1,
-        fullHeight: 1,
-        offsetX: 0,
-        offsetY: 0,
-        width: 1,
-        height: 1
-      };
-    }
-
-    this.view.enabled = true;
-    this.view.fullWidth = fullWidth;
-    this.view.fullHeight = fullHeight;
-    this.view.offsetX = x;
-    this.view.offsetY = y;
-    this.view.width = width;
-    this.view.height = height;
-    this.updateProjectionMatrix();
-  }
-
-  clearViewOffset() {
-    if (this.view !== null) {
-      this.view.enabled = false;
-    }
-
-    this.updateProjectionMatrix();
-  }
-
-  updateProjectionMatrix() {
-    const dx = (this.right - this.left) / (2 * this.zoom);
-    const dy = (this.top - this.bottom) / (2 * this.zoom);
-    const cx = (this.right + this.left) / 2;
-    const cy = (this.top + this.bottom) / 2;
-    let left = cx - dx;
-    let right = cx + dx;
-    let top = cy + dy;
-    let bottom = cy - dy;
-
-    if (this.view !== null && this.view.enabled) {
-      const scaleW = (this.right - this.left) / this.view.fullWidth / this.zoom;
-      const scaleH = (this.top - this.bottom) / this.view.fullHeight / this.zoom;
-      left += scaleW * this.view.offsetX;
-      right = left + scaleW * this.view.width;
-      top -= scaleH * this.view.offsetY;
-      bottom = top - scaleH * this.view.height;
-    }
-
-    this.projectionMatrix.makeOrthographic(left, right, top, bottom, this.near, this.far);
-    this.projectionMatrixInverse.copy(this.projectionMatrix).invert();
-  }
-
-  toJSON(meta) {
-    const data = Object3D.prototype.toJSON.call(this, meta);
-    data.object.zoom = this.zoom;
-    data.object.left = this.left;
-    data.object.right = this.right;
-    data.object.top = this.top;
-    data.object.bottom = this.bottom;
-    data.object.near = this.near;
-    data.object.far = this.far;
-    if (this.view !== null) data.object.view = Object.assign({}, this.view);
-    return data;
-  }
-
-}
-
-exports.OrthographicCamera = OrthographicCamera;
-OrthographicCamera.prototype.isOrthographicCamera = true;
-
-class DirectionalLightShadow extends LightShadow {
-  constructor() {
-    super(new OrthographicCamera(-5, 5, 5, -5, 0.5, 500));
-  }
-
-}
-
-DirectionalLightShadow.prototype.isDirectionalLightShadow = true;
-
-class DirectionalLight extends Light {
-  constructor(color, intensity) {
-    super(color, intensity);
-    this.type = 'DirectionalLight';
-    this.position.copy(Object3D.DefaultUp);
-    this.updateMatrix();
-    this.target = new Object3D();
-    this.shadow = new DirectionalLightShadow();
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.target = source.target.clone();
-    this.shadow = source.shadow.clone();
-    return this;
-  }
-
-}
-
-exports.DirectionalLight = DirectionalLight;
-DirectionalLight.prototype.isDirectionalLight = true;
-
-class AmbientLight extends Light {
-  constructor(color, intensity) {
-    super(color, intensity);
-    this.type = 'AmbientLight';
-  }
-
-}
-
-exports.AmbientLight = AmbientLight;
-AmbientLight.prototype.isAmbientLight = true;
-
-class RectAreaLight extends Light {
-  constructor(color, intensity, width = 10, height = 10) {
-    super(color, intensity);
-    this.type = 'RectAreaLight';
-    this.width = width;
-    this.height = height;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.width = source.width;
-    this.height = source.height;
-    return this;
-  }
-
-  toJSON(meta) {
-    const data = super.toJSON(meta);
-    data.object.width = this.width;
-    data.object.height = this.height;
-    return data;
-  }
-
-}
-
-exports.RectAreaLight = RectAreaLight;
-RectAreaLight.prototype.isRectAreaLight = true;
-/**
- * Primary reference:
- *   https://graphics.stanford.edu/papers/envmap/envmap.pdf
- *
- * Secondary reference:
- *   https://www.ppsloan.org/publications/StupidSH36.pdf
- */
-// 3-band SH defined by 9 coefficients
-
-class SphericalHarmonics3 {
-  constructor() {
-    this.coefficients = [];
-
-    for (let i = 0; i < 9; i++) {
-      this.coefficients.push(new Vector3());
-    }
-  }
-
-  set(coefficients) {
-    for (let i = 0; i < 9; i++) {
-      this.coefficients[i].copy(coefficients[i]);
-    }
-
-    return this;
-  }
-
-  zero() {
-    for (let i = 0; i < 9; i++) {
-      this.coefficients[i].set(0, 0, 0);
-    }
-
-    return this;
-  } // get the radiance in the direction of the normal
-  // target is a Vector3
-
-
-  getAt(normal, target) {
-    // normal is assumed to be unit length
-    const x = normal.x,
-          y = normal.y,
-          z = normal.z;
-    const coeff = this.coefficients; // band 0
-
-    target.copy(coeff[0]).multiplyScalar(0.282095); // band 1
-
-    target.addScaledVector(coeff[1], 0.488603 * y);
-    target.addScaledVector(coeff[2], 0.488603 * z);
-    target.addScaledVector(coeff[3], 0.488603 * x); // band 2
-
-    target.addScaledVector(coeff[4], 1.092548 * (x * y));
-    target.addScaledVector(coeff[5], 1.092548 * (y * z));
-    target.addScaledVector(coeff[6], 0.315392 * (3.0 * z * z - 1.0));
-    target.addScaledVector(coeff[7], 1.092548 * (x * z));
-    target.addScaledVector(coeff[8], 0.546274 * (x * x - y * y));
-    return target;
-  } // get the irradiance (radiance convolved with cosine lobe) in the direction of the normal
-  // target is a Vector3
-  // https://graphics.stanford.edu/papers/envmap/envmap.pdf
-
-
-  getIrradianceAt(normal, target) {
-    // normal is assumed to be unit length
-    const x = normal.x,
-          y = normal.y,
-          z = normal.z;
-    const coeff = this.coefficients; // band 0
-
-    target.copy(coeff[0]).multiplyScalar(0.886227); // π * 0.282095
-    // band 1
-
-    target.addScaledVector(coeff[1], 2.0 * 0.511664 * y); // ( 2 * π / 3 ) * 0.488603
-
-    target.addScaledVector(coeff[2], 2.0 * 0.511664 * z);
-    target.addScaledVector(coeff[3], 2.0 * 0.511664 * x); // band 2
-
-    target.addScaledVector(coeff[4], 2.0 * 0.429043 * x * y); // ( π / 4 ) * 1.092548
-
-    target.addScaledVector(coeff[5], 2.0 * 0.429043 * y * z);
-    target.addScaledVector(coeff[6], 0.743125 * z * z - 0.247708); // ( π / 4 ) * 0.315392 * 3
-
-    target.addScaledVector(coeff[7], 2.0 * 0.429043 * x * z);
-    target.addScaledVector(coeff[8], 0.429043 * (x * x - y * y)); // ( π / 4 ) * 0.546274
-
-    return target;
-  }
-
-  add(sh) {
-    for (let i = 0; i < 9; i++) {
-      this.coefficients[i].add(sh.coefficients[i]);
-    }
-
-    return this;
-  }
-
-  addScaledSH(sh, s) {
-    for (let i = 0; i < 9; i++) {
-      this.coefficients[i].addScaledVector(sh.coefficients[i], s);
-    }
-
-    return this;
-  }
-
-  scale(s) {
-    for (let i = 0; i < 9; i++) {
-      this.coefficients[i].multiplyScalar(s);
-    }
-
-    return this;
-  }
-
-  lerp(sh, alpha) {
-    for (let i = 0; i < 9; i++) {
-      this.coefficients[i].lerp(sh.coefficients[i], alpha);
-    }
-
-    return this;
-  }
-
-  equals(sh) {
-    for (let i = 0; i < 9; i++) {
-      if (!this.coefficients[i].equals(sh.coefficients[i])) {
-        return false;
-      }
-    }
-
-    return true;
-  }
-
-  copy(sh) {
-    return this.set(sh.coefficients);
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-  fromArray(array, offset = 0) {
-    const coefficients = this.coefficients;
-
-    for (let i = 0; i < 9; i++) {
-      coefficients[i].fromArray(array, offset + i * 3);
-    }
-
-    return this;
-  }
-
-  toArray(array = [], offset = 0) {
-    const coefficients = this.coefficients;
-
-    for (let i = 0; i < 9; i++) {
-      coefficients[i].toArray(array, offset + i * 3);
-    }
-
-    return array;
-  } // evaluate the basis functions
-  // shBasis is an Array[ 9 ]
-
-
-  static getBasisAt(normal, shBasis) {
-    // normal is assumed to be unit length
-    const x = normal.x,
-          y = normal.y,
-          z = normal.z; // band 0
-
-    shBasis[0] = 0.282095; // band 1
-
-    shBasis[1] = 0.488603 * y;
-    shBasis[2] = 0.488603 * z;
-    shBasis[3] = 0.488603 * x; // band 2
-
-    shBasis[4] = 1.092548 * x * y;
-    shBasis[5] = 1.092548 * y * z;
-    shBasis[6] = 0.315392 * (3 * z * z - 1);
-    shBasis[7] = 1.092548 * x * z;
-    shBasis[8] = 0.546274 * (x * x - y * y);
-  }
-
-}
-
-exports.SphericalHarmonics3 = SphericalHarmonics3;
-SphericalHarmonics3.prototype.isSphericalHarmonics3 = true;
-
-class LightProbe extends Light {
-  constructor(sh = new SphericalHarmonics3(), intensity = 1) {
-    super(undefined, intensity);
-    this.sh = sh;
-  }
-
-  copy(source) {
-    super.copy(source);
-    this.sh.copy(source.sh);
-    return this;
-  }
-
-  fromJSON(json) {
-    this.intensity = json.intensity; // TODO: Move this bit to Light.fromJSON();
-
-    this.sh.fromArray(json.sh);
-    return this;
-  }
-
-  toJSON(meta) {
-    const data = super.toJSON(meta);
-    data.object.sh = this.sh.toArray();
-    return data;
-  }
-
-}
-
-exports.LightProbe = LightProbe;
-LightProbe.prototype.isLightProbe = true;
-
-class MaterialLoader extends Loader {
-  constructor(manager) {
-    super(manager);
-    this.textures = {};
-  }
-
-  load(url, onLoad, onProgress, onError) {
-    const scope = this;
-    const loader = new FileLoader(scope.manager);
-    loader.setPath(scope.path);
-    loader.setRequestHeader(scope.requestHeader);
-    loader.setWithCredentials(scope.withCredentials);
-    loader.load(url, function (text) {
-      try {
-        onLoad(scope.parse(JSON.parse(text)));
-      } catch (e) {
-        if (onError) {
-          onError(e);
-        } else {
-          console.error(e);
-        }
-
-        scope.manager.itemError(url);
-      }
-    }, onProgress, onError);
-  }
-
-  parse(json) {
-    const textures = this.textures;
-
-    function getTexture(name) {
-      if (textures[name] === undefined) {
-        console.warn('THREE.MaterialLoader: Undefined texture', name);
-      }
-
-      return textures[name];
-    }
-
-    const material = new Materials[json.type]();
-    if (json.uuid !== undefined) material.uuid = json.uuid;
-    if (json.name !== undefined) material.name = json.name;
-    if (json.color !== undefined && material.color !== undefined) material.color.setHex(json.color);
-    if (json.roughness !== undefined) material.roughness = json.roughness;
-    if (json.metalness !== undefined) material.metalness = json.metalness;
-    if (json.sheen !== undefined) material.sheen = new Color().setHex(json.sheen);
-    if (json.emissive !== undefined && material.emissive !== undefined) material.emissive.setHex(json.emissive);
-    if (json.specular !== undefined && material.specular !== undefined) material.specular.setHex(json.specular);
-    if (json.shininess !== undefined) material.shininess = json.shininess;
-    if (json.clearcoat !== undefined) material.clearcoat = json.clearcoat;
-    if (json.clearcoatRoughness !== undefined) material.clearcoatRoughness = json.clearcoatRoughness;
-    if (json.fog !== undefined) material.fog = json.fog;
-    if (json.flatShading !== undefined) material.flatShading = json.flatShading;
-    if (json.blending !== undefined) material.blending = json.blending;
-    if (json.combine !== undefined) material.combine = json.combine;
-    if (json.side !== undefined) material.side = json.side;
-    if (json.opacity !== undefined) material.opacity = json.opacity;
-    if (json.transparent !== undefined) material.transparent = json.transparent;
-    if (json.alphaTest !== undefined) material.alphaTest = json.alphaTest;
-    if (json.depthTest !== undefined) material.depthTest = json.depthTest;
-    if (json.depthWrite !== undefined) material.depthWrite = json.depthWrite;
-    if (json.colorWrite !== undefined) material.colorWrite = json.colorWrite;
-    if (json.stencilWrite !== undefined) material.stencilWrite = json.stencilWrite;
-    if (json.stencilWriteMask !== undefined) material.stencilWriteMask = json.stencilWriteMask;
-    if (json.stencilFunc !== undefined) material.stencilFunc = json.stencilFunc;
-    if (json.stencilRef !== undefined) material.stencilRef = json.stencilRef;
-    if (json.stencilFuncMask !== undefined) material.stencilFuncMask = json.stencilFuncMask;
-    if (json.stencilFail !== undefined) material.stencilFail = json.stencilFail;
-    if (json.stencilZFail !== undefined) material.stencilZFail = json.stencilZFail;
-    if (json.stencilZPass !== undefined) material.stencilZPass = json.stencilZPass;
-    if (json.wireframe !== undefined) material.wireframe = json.wireframe;
-    if (json.wireframeLinewidth !== undefined) material.wireframeLinewidth = json.wireframeLinewidth;
-    if (json.wireframeLinecap !== undefined) material.wireframeLinecap = json.wireframeLinecap;
-    if (json.wireframeLinejoin !== undefined) material.wireframeLinejoin = json.wireframeLinejoin;
-    if (json.rotation !== undefined) material.rotation = json.rotation;
-    if (json.linewidth !== 1) material.linewidth = json.linewidth;
-    if (json.dashSize !== undefined) material.dashSize = json.dashSize;
-    if (json.gapSize !== undefined) material.gapSize = json.gapSize;
-    if (json.scale !== undefined) material.scale = json.scale;
-    if (json.polygonOffset !== undefined) material.polygonOffset = json.polygonOffset;
-    if (json.polygonOffsetFactor !== undefined) material.polygonOffsetFactor = json.polygonOffsetFactor;
-    if (json.polygonOffsetUnits !== undefined) material.polygonOffsetUnits = json.polygonOffsetUnits;
-    if (json.skinning !== undefined) material.skinning = json.skinning;
-    if (json.morphTargets !== undefined) material.morphTargets = json.morphTargets;
-    if (json.morphNormals !== undefined) material.morphNormals = json.morphNormals;
-    if (json.dithering !== undefined) material.dithering = json.dithering;
-    if (json.vertexTangents !== undefined) material.vertexTangents = json.vertexTangents;
-    if (json.visible !== undefined) material.visible = json.visible;
-    if (json.toneMapped !== undefined) material.toneMapped = json.toneMapped;
-    if (json.userData !== undefined) material.userData = json.userData;
-
-    if (json.vertexColors !== undefined) {
-      if (typeof json.vertexColors === 'number') {
-        material.vertexColors = json.vertexColors > 0 ? true : false;
-      } else {
-        material.vertexColors = json.vertexColors;
-      }
-    } // Shader Material
-
-
-    if (json.uniforms !== undefined) {
-      for (const name in json.uniforms) {
-        const uniform = json.uniforms[name];
-        material.uniforms[name] = {};
-
-        switch (uniform.type) {
-          case 't':
-            material.uniforms[name].value = getTexture(uniform.value);
-            break;
-
-          case 'c':
-            material.uniforms[name].value = new Color().setHex(uniform.value);
-            break;
-
-          case 'v2':
-            material.uniforms[name].value = new Vector2().fromArray(uniform.value);
-            break;
-
-          case 'v3':
-            material.uniforms[name].value = new Vector3().fromArray(uniform.value);
-            break;
-
-          case 'v4':
-            material.uniforms[name].value = new Vector4().fromArray(uniform.value);
-            break;
-
-          case 'm3':
-            material.uniforms[name].value = new Matrix3().fromArray(uniform.value);
-            break;
-
-          case 'm4':
-            material.uniforms[name].value = new Matrix4().fromArray(uniform.value);
-            break;
-
-          default:
-            material.uniforms[name].value = uniform.value;
-        }
-      }
-    }
-
-    if (json.defines !== undefined) material.defines = json.defines;
-    if (json.vertexShader !== undefined) material.vertexShader = json.vertexShader;
-    if (json.fragmentShader !== undefined) material.fragmentShader = json.fragmentShader;
-
-    if (json.extensions !== undefined) {
-      for (const key in json.extensions) {
-        material.extensions[key] = json.extensions[key];
-      }
-    } // Deprecated
-
-
-    if (json.shading !== undefined) material.flatShading = json.shading === 1; // THREE.FlatShading
-    // for PointsMaterial
-
-    if (json.size !== undefined) material.size = json.size;
-    if (json.sizeAttenuation !== undefined) material.sizeAttenuation = json.sizeAttenuation; // maps
-
-    if (json.map !== undefined) material.map = getTexture(json.map);
-    if (json.matcap !== undefined) material.matcap = getTexture(json.matcap);
-    if (json.alphaMap !== undefined) material.alphaMap = getTexture(json.alphaMap);
-    if (json.bumpMap !== undefined) material.bumpMap = getTexture(json.bumpMap);
-    if (json.bumpScale !== undefined) material.bumpScale = json.bumpScale;
-    if (json.normalMap !== undefined) material.normalMap = getTexture(json.normalMap);
-    if (json.normalMapType !== undefined) material.normalMapType = json.normalMapType;
-
-    if (json.normalScale !== undefined) {
-      let normalScale = json.normalScale;
-
-      if (Array.isArray(normalScale) === false) {
-        // Blender exporter used to export a scalar. See #7459
-        normalScale = [normalScale, normalScale];
-      }
-
-      material.normalScale = new Vector2().fromArray(normalScale);
-    }
-
-    if (json.displacementMap !== undefined) material.displacementMap = getTexture(json.displacementMap);
-    if (json.displacementScale !== undefined) material.displacementScale = json.displacementScale;
-    if (json.displacementBias !== undefined) material.displacementBias = json.displacementBias;
-    if (json.roughnessMap !== undefined) material.roughnessMap = getTexture(json.roughnessMap);
-    if (json.metalnessMap !== undefined) material.metalnessMap = getTexture(json.metalnessMap);
-    if (json.emissiveMap !== undefined) material.emissiveMap = getTexture(json.emissiveMap);
-    if (json.emissiveIntensity !== undefined) material.emissiveIntensity = json.emissiveIntensity;
-    if (json.specularMap !== undefined) material.specularMap = getTexture(json.specularMap);
-    if (json.envMap !== undefined) material.envMap = getTexture(json.envMap);
-    if (json.envMapIntensity !== undefined) material.envMapIntensity = json.envMapIntensity;
-    if (json.reflectivity !== undefined) material.reflectivity = json.reflectivity;
-    if (json.refractionRatio !== undefined) material.refractionRatio = json.refractionRatio;
-    if (json.lightMap !== undefined) material.lightMap = getTexture(json.lightMap);
-    if (json.lightMapIntensity !== undefined) material.lightMapIntensity = json.lightMapIntensity;
-    if (json.aoMap !== undefined) material.aoMap = getTexture(json.aoMap);
-    if (json.aoMapIntensity !== undefined) material.aoMapIntensity = json.aoMapIntensity;
-    if (json.gradientMap !== undefined) material.gradientMap = getTexture(json.gradientMap);
-    if (json.clearcoatMap !== undefined) material.clearcoatMap = getTexture(json.clearcoatMap);
-    if (json.clearcoatRoughnessMap !== undefined) material.clearcoatRoughnessMap = getTexture(json.clearcoatRoughnessMap);
-    if (json.clearcoatNormalMap !== undefined) material.clearcoatNormalMap = getTexture(json.clearcoatNormalMap);
-    if (json.clearcoatNormalScale !== undefined) material.clearcoatNormalScale = new Vector2().fromArray(json.clearcoatNormalScale);
-    if (json.transmission !== undefined) material.transmission = json.transmission;
-    if (json.transmissionMap !== undefined) material.transmissionMap = getTexture(json.transmissionMap);
-    return material;
-  }
-
-  setTextures(value) {
-    this.textures = value;
-    return this;
-  }
-
-}
-
-exports.MaterialLoader = MaterialLoader;
-const LoaderUtils = {
-  decodeText: function (array) {
-    if (typeof TextDecoder !== 'undefined') {
-      return new TextDecoder().decode(array);
-    } // Avoid the String.fromCharCode.apply(null, array) shortcut, which
-    // throws a "maximum call stack size exceeded" error for large arrays.
-
-
-    let s = '';
-
-    for (let i = 0, il = array.length; i < il; i++) {
-      // Implicitly assumes little-endian.
-      s += String.fromCharCode(array[i]);
-    }
-
-    try {
-      // merges multi-byte utf-8 characters.
-      return decodeURIComponent(escape(s));
-    } catch (e) {
-      // see #16358
-      return s;
-    }
-  },
-  extractUrlBase: function (url) {
-    const index = url.lastIndexOf('/');
-    if (index === -1) return './';
-    return url.substr(0, index + 1);
-  }
-};
-exports.LoaderUtils = LoaderUtils;
-
-function InstancedBufferGeometry() {
-  BufferGeometry.call(this);
-  this.type = 'InstancedBufferGeometry';
-  this.instanceCount = Infinity;
-}
-
-InstancedBufferGeometry.prototype = Object.assign(Object.create(BufferGeometry.prototype), {
-  constructor: InstancedBufferGeometry,
-  isInstancedBufferGeometry: true,
-  copy: function (source) {
-    BufferGeometry.prototype.copy.call(this, source);
-    this.instanceCount = source.instanceCount;
-    return this;
-  },
-  clone: function () {
-    return new this.constructor().copy(this);
-  },
-  toJSON: function () {
-    const data = BufferGeometry.prototype.toJSON.call(this);
-    data.instanceCount = this.instanceCount;
-    data.isInstancedBufferGeometry = true;
-    return data;
-  }
-});
-
-function InstancedBufferAttribute(array, itemSize, normalized, meshPerAttribute) {
-  if (typeof normalized === 'number') {
-    meshPerAttribute = normalized;
-    normalized = false;
-    console.error('THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.');
-  }
-
-  BufferAttribute.call(this, array, itemSize, normalized);
-  this.meshPerAttribute = meshPerAttribute || 1;
-}
-
-InstancedBufferAttribute.prototype = Object.assign(Object.create(BufferAttribute.prototype), {
-  constructor: InstancedBufferAttribute,
-  isInstancedBufferAttribute: true,
-  copy: function (source) {
-    BufferAttribute.prototype.copy.call(this, source);
-    this.meshPerAttribute = source.meshPerAttribute;
-    return this;
-  },
-  toJSON: function () {
-    const data = BufferAttribute.prototype.toJSON.call(this);
-    data.meshPerAttribute = this.meshPerAttribute;
-    data.isInstancedBufferAttribute = true;
-    return data;
-  }
-});
-
-class BufferGeometryLoader extends Loader {
-  constructor(manager) {
-    super(manager);
-  }
-
-  load(url, onLoad, onProgress, onError) {
-    const scope = this;
-    const loader = new FileLoader(scope.manager);
-    loader.setPath(scope.path);
-    loader.setRequestHeader(scope.requestHeader);
-    loader.setWithCredentials(scope.withCredentials);
-    loader.load(url, function (text) {
-      try {
-        onLoad(scope.parse(JSON.parse(text)));
-      } catch (e) {
-        if (onError) {
-          onError(e);
-        } else {
-          console.error(e);
-        }
-
-        scope.manager.itemError(url);
-      }
-    }, onProgress, onError);
-  }
-
-  parse(json) {
-    const interleavedBufferMap = {};
-    const arrayBufferMap = {};
-
-    function getInterleavedBuffer(json, uuid) {
-      if (interleavedBufferMap[uuid] !== undefined) return interleavedBufferMap[uuid];
-      const interleavedBuffers = json.interleavedBuffers;
-      const interleavedBuffer = interleavedBuffers[uuid];
-      const buffer = getArrayBuffer(json, interleavedBuffer.buffer);
-      const array = getTypedArray(interleavedBuffer.type, buffer);
-      const ib = new InterleavedBuffer(array, interleavedBuffer.stride);
-      ib.uuid = interleavedBuffer.uuid;
-      interleavedBufferMap[uuid] = ib;
-      return ib;
-    }
-
-    function getArrayBuffer(json, uuid) {
-      if (arrayBufferMap[uuid] !== undefined) return arrayBufferMap[uuid];
-      const arrayBuffers = json.arrayBuffers;
-      const arrayBuffer = arrayBuffers[uuid];
-      const ab = new Uint32Array(arrayBuffer).buffer;
-      arrayBufferMap[uuid] = ab;
-      return ab;
-    }
-
-    const geometry = json.isInstancedBufferGeometry ? new InstancedBufferGeometry() : new BufferGeometry();
-    const index = json.data.index;
-
-    if (index !== undefined) {
-      const typedArray = getTypedArray(index.type, index.array);
-      geometry.setIndex(new BufferAttribute(typedArray, 1));
-    }
-
-    const attributes = json.data.attributes;
-
-    for (const key in attributes) {
-      const attribute = attributes[key];
-      let bufferAttribute;
-
-      if (attribute.isInterleavedBufferAttribute) {
-        const interleavedBuffer = getInterleavedBuffer(json.data, attribute.data);
-        bufferAttribute = new InterleavedBufferAttribute(interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized);
-      } else {
-        const typedArray = getTypedArray(attribute.type, attribute.array);
-        const bufferAttributeConstr = attribute.isInstancedBufferAttribute ? InstancedBufferAttribute : BufferAttribute;
-        bufferAttribute = new bufferAttributeConstr(typedArray, attribute.itemSize, attribute.normalized);
-      }
-
-      if (attribute.name !== undefined) bufferAttribute.name = attribute.name;
-      geometry.setAttribute(key, bufferAttribute);
-    }
-
-    const morphAttributes = json.data.morphAttributes;
-
-    if (morphAttributes) {
-      for (const key in morphAttributes) {
-        const attributeArray = morphAttributes[key];
-        const array = [];
-
-        for (let i = 0, il = attributeArray.length; i < il; i++) {
-          const attribute = attributeArray[i];
-          let bufferAttribute;
-
-          if (attribute.isInterleavedBufferAttribute) {
-            const interleavedBuffer = getInterleavedBuffer(json.data, attribute.data);
-            bufferAttribute = new InterleavedBufferAttribute(interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized);
-          } else {
-            const typedArray = getTypedArray(attribute.type, attribute.array);
-            bufferAttribute = new BufferAttribute(typedArray, attribute.itemSize, attribute.normalized);
-          }
-
-          if (attribute.name !== undefined) bufferAttribute.name = attribute.name;
-          array.push(bufferAttribute);
-        }
-
-        geometry.morphAttributes[key] = array;
-      }
-    }
-
-    const morphTargetsRelative = json.data.morphTargetsRelative;
-
-    if (morphTargetsRelative) {
-      geometry.morphTargetsRelative = true;
-    }
-
-    const groups = json.data.groups || json.data.drawcalls || json.data.offsets;
-
-    if (groups !== undefined) {
-      for (let i = 0, n = groups.length; i !== n; ++i) {
-        const group = groups[i];
-        geometry.addGroup(group.start, group.count, group.materialIndex);
-      }
-    }
-
-    const boundingSphere = json.data.boundingSphere;
-
-    if (boundingSphere !== undefined) {
-      const center = new Vector3();
-
-      if (boundingSphere.center !== undefined) {
-        center.fromArray(boundingSphere.center);
-      }
-
-      geometry.boundingSphere = new Sphere(center, boundingSphere.radius);
-    }
-
-    if (json.name) geometry.name = json.name;
-    if (json.userData) geometry.userData = json.userData;
-    return geometry;
-  }
-
-}
-
-exports.BufferGeometryLoader = BufferGeometryLoader;
-
-class ObjectLoader extends Loader {
-  constructor(manager) {
-    super(manager);
-  }
-
-  load(url, onLoad, onProgress, onError) {
-    const scope = this;
-    const path = this.path === '' ? LoaderUtils.extractUrlBase(url) : this.path;
-    this.resourcePath = this.resourcePath || path;
-    const loader = new FileLoader(this.manager);
-    loader.setPath(this.path);
-    loader.setRequestHeader(this.requestHeader);
-    loader.setWithCredentials(this.withCredentials);
-    loader.load(url, function (text) {
-      let json = null;
-
-      try {
-        json = JSON.parse(text);
-      } catch (error) {
-        if (onError !== undefined) onError(error);
-        console.error('THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message);
-        return;
-      }
-
-      const metadata = json.metadata;
-
-      if (metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry') {
-        console.error('THREE.ObjectLoader: Can\'t load ' + url);
-        return;
-      }
-
-      scope.parse(json, onLoad);
-    }, onProgress, onError);
-  }
-
-  parse(json, onLoad) {
-    const animations = this.parseAnimations(json.animations);
-    const shapes = this.parseShapes(json.shapes);
-    const geometries = this.parseGeometries(json.geometries, shapes);
-    const images = this.parseImages(json.images, function () {
-      if (onLoad !== undefined) onLoad(object);
-    });
-    const textures = this.parseTextures(json.textures, images);
-    const materials = this.parseMaterials(json.materials, textures);
-    const object = this.parseObject(json.object, geometries, materials, animations);
-    const skeletons = this.parseSkeletons(json.skeletons, object);
-    this.bindSkeletons(object, skeletons); //
-
-    if (onLoad !== undefined) {
-      let hasImages = false;
-
-      for (const uuid in images) {
-        if (images[uuid] instanceof HTMLImageElement) {
-          hasImages = true;
-          break;
-        }
-      }
-
-      if (hasImages === false) onLoad(object);
-    }
-
-    return object;
-  }
-
-  parseShapes(json) {
-    const shapes = {};
-
-    if (json !== undefined) {
-      for (let i = 0, l = json.length; i < l; i++) {
-        const shape = new Shape().fromJSON(json[i]);
-        shapes[shape.uuid] = shape;
-      }
-    }
-
-    return shapes;
-  }
-
-  parseSkeletons(json, object) {
-    const skeletons = {};
-    const bones = {}; // generate bone lookup table
-
-    object.traverse(function (child) {
-      if (child.isBone) bones[child.uuid] = child;
-    }); // create skeletons
-
-    if (json !== undefined) {
-      for (let i = 0, l = json.length; i < l; i++) {
-        const skeleton = new Skeleton().fromJSON(json[i], bones);
-        skeletons[skeleton.uuid] = skeleton;
-      }
-    }
-
-    return skeletons;
-  }
-
-  parseGeometries(json, shapes) {
-    const geometries = {};
-    let geometryShapes;
-
-    if (json !== undefined) {
-      const bufferGeometryLoader = new BufferGeometryLoader();
-
-      for (let i = 0, l = json.length; i < l; i++) {
-        let geometry;
-        const data = json[i];
-
-        switch (data.type) {
-          case 'PlaneGeometry':
-          case 'PlaneBufferGeometry':
-            geometry = new Geometries[data.type](data.width, data.height, data.widthSegments, data.heightSegments);
-            break;
-
-          case 'BoxGeometry':
-          case 'BoxBufferGeometry':
-            geometry = new Geometries[data.type](data.width, data.height, data.depth, data.widthSegments, data.heightSegments, data.depthSegments);
-            break;
-
-          case 'CircleGeometry':
-          case 'CircleBufferGeometry':
-            geometry = new Geometries[data.type](data.radius, data.segments, data.thetaStart, data.thetaLength);
-            break;
-
-          case 'CylinderGeometry':
-          case 'CylinderBufferGeometry':
-            geometry = new Geometries[data.type](data.radiusTop, data.radiusBottom, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength);
-            break;
-
-          case 'ConeGeometry':
-          case 'ConeBufferGeometry':
-            geometry = new Geometries[data.type](data.radius, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength);
-            break;
-
-          case 'SphereGeometry':
-          case 'SphereBufferGeometry':
-            geometry = new Geometries[data.type](data.radius, data.widthSegments, data.heightSegments, data.phiStart, data.phiLength, data.thetaStart, data.thetaLength);
-            break;
-
-          case 'DodecahedronGeometry':
-          case 'DodecahedronBufferGeometry':
-          case 'IcosahedronGeometry':
-          case 'IcosahedronBufferGeometry':
-          case 'OctahedronGeometry':
-          case 'OctahedronBufferGeometry':
-          case 'TetrahedronGeometry':
-          case 'TetrahedronBufferGeometry':
-            geometry = new Geometries[data.type](data.radius, data.detail);
-            break;
-
-          case 'RingGeometry':
-          case 'RingBufferGeometry':
-            geometry = new Geometries[data.type](data.innerRadius, data.outerRadius, data.thetaSegments, data.phiSegments, data.thetaStart, data.thetaLength);
-            break;
-
-          case 'TorusGeometry':
-          case 'TorusBufferGeometry':
-            geometry = new Geometries[data.type](data.radius, data.tube, data.radialSegments, data.tubularSegments, data.arc);
-            break;
-
-          case 'TorusKnotGeometry':
-          case 'TorusKnotBufferGeometry':
-            geometry = new Geometries[data.type](data.radius, data.tube, data.tubularSegments, data.radialSegments, data.p, data.q);
-            break;
-
-          case 'TubeGeometry':
-          case 'TubeBufferGeometry':
-            // This only works for built-in curves (e.g. CatmullRomCurve3).
-            // User defined curves or instances of CurvePath will not be deserialized.
-            geometry = new Geometries[data.type](new Curves[data.path.type]().fromJSON(data.path), data.tubularSegments, data.radius, data.radialSegments, data.closed);
-            break;
-
-          case 'LatheGeometry':
-          case 'LatheBufferGeometry':
-            geometry = new Geometries[data.type](data.points, data.segments, data.phiStart, data.phiLength);
-            break;
-
-          case 'PolyhedronGeometry':
-          case 'PolyhedronBufferGeometry':
-            geometry = new Geometries[data.type](data.vertices, data.indices, data.radius, data.details);
-            break;
-
-          case 'ShapeGeometry':
-          case 'ShapeBufferGeometry':
-            geometryShapes = [];
-
-            for (let j = 0, jl = data.shapes.length; j < jl; j++) {
-              const shape = shapes[data.shapes[j]];
-              geometryShapes.push(shape);
-            }
-
-            geometry = new Geometries[data.type](geometryShapes, data.curveSegments);
-            break;
-
-          case 'ExtrudeGeometry':
-          case 'ExtrudeBufferGeometry':
-            geometryShapes = [];
-
-            for (let j = 0, jl = data.shapes.length; j < jl; j++) {
-              const shape = shapes[data.shapes[j]];
-              geometryShapes.push(shape);
-            }
-
-            const extrudePath = data.options.extrudePath;
-
-            if (extrudePath !== undefined) {
-              data.options.extrudePath = new Curves[extrudePath.type]().fromJSON(extrudePath);
-            }
-
-            geometry = new Geometries[data.type](geometryShapes, data.options);
-            break;
-
-          case 'BufferGeometry':
-          case 'InstancedBufferGeometry':
-            geometry = bufferGeometryLoader.parse(data);
-            break;
-
-          case 'Geometry':
-            console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');
-            break;
-
-          default:
-            console.warn('THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"');
-            continue;
-        }
-
-        geometry.uuid = data.uuid;
-        if (data.name !== undefined) geometry.name = data.name;
-        if (geometry.isBufferGeometry === true && data.userData !== undefined) geometry.userData = data.userData;
-        geometries[data.uuid] = geometry;
-      }
-    }
-
-    return geometries;
-  }
-
-  parseMaterials(json, textures) {
-    const cache = {}; // MultiMaterial
-
-    const materials = {};
-
-    if (json !== undefined) {
-      const loader = new MaterialLoader();
-      loader.setTextures(textures);
-
-      for (let i = 0, l = json.length; i < l; i++) {
-        const data = json[i];
-
-        if (data.type === 'MultiMaterial') {
-          // Deprecated
-          const array = [];
-
-          for (let j = 0; j < data.materials.length; j++) {
-            const material = data.materials[j];
-
-            if (cache[material.uuid] === undefined) {
-              cache[material.uuid] = loader.parse(material);
-            }
-
-            array.push(cache[material.uuid]);
-          }
-
-          materials[data.uuid] = array;
-        } else {
-          if (cache[data.uuid] === undefined) {
-            cache[data.uuid] = loader.parse(data);
-          }
-
-          materials[data.uuid] = cache[data.uuid];
-        }
-      }
-    }
-
-    return materials;
-  }
-
-  parseAnimations(json) {
-    const animations = {};
-
-    if (json !== undefined) {
-      for (let i = 0; i < json.length; i++) {
-        const data = json[i];
-        const clip = AnimationClip.parse(data);
-        animations[clip.uuid] = clip;
-      }
-    }
-
-    return animations;
-  }
-
-  parseImages(json, onLoad) {
-    const scope = this;
-    const images = {};
-    let loader;
-
-    function loadImage(url) {
-      scope.manager.itemStart(url);
-      return loader.load(url, function () {
-        scope.manager.itemEnd(url);
-      }, undefined, function () {
-        scope.manager.itemError(url);
-        scope.manager.itemEnd(url);
-      });
-    }
-
-    function deserializeImage(image) {
-      if (typeof image === 'string') {
-        const url = image;
-        const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test(url) ? url : scope.resourcePath + url;
-        return loadImage(path);
-      } else {
-        if (image.data) {
-          return {
-            data: getTypedArray(image.type, image.data),
-            width: image.width,
-            height: image.height
-          };
-        } else {
-          return null;
-        }
-      }
-    }
-
-    if (json !== undefined && json.length > 0) {
-      const manager = new LoadingManager(onLoad);
-      loader = new ImageLoader(manager);
-      loader.setCrossOrigin(this.crossOrigin);
-
-      for (let i = 0, il = json.length; i < il; i++) {
-        const image = json[i];
-        const url = image.url;
-
-        if (Array.isArray(url)) {
-          // load array of images e.g CubeTexture
-          images[image.uuid] = [];
-
-          for (let j = 0, jl = url.length; j < jl; j++) {
-            const currentUrl = url[j];
-            const deserializedImage = deserializeImage(currentUrl);
-
-            if (deserializedImage !== null) {
-              if (deserializedImage instanceof HTMLImageElement) {
-                images[image.uuid].push(deserializedImage);
-              } else {
-                // special case: handle array of data textures for cube textures
-                images[image.uuid].push(new DataTexture(deserializedImage.data, deserializedImage.width, deserializedImage.height));
-              }
-            }
-          }
-        } else {
-          // load single image
-          const deserializedImage = deserializeImage(image.url);
-
-          if (deserializedImage !== null) {
-            images[image.uuid] = deserializedImage;
-          }
-        }
-      }
-    }
-
-    return images;
-  }
-
-  parseTextures(json, images) {
-    function parseConstant(value, type) {
-      if (typeof value === 'number') return value;
-      console.warn('THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value);
-      return type[value];
-    }
-
-    const textures = {};
-
-    if (json !== undefined) {
-      for (let i = 0, l = json.length; i < l; i++) {
-        const data = json[i];
-
-        if (data.image === undefined) {
-          console.warn('THREE.ObjectLoader: No "image" specified for', data.uuid);
-        }
-
-        if (images[data.image] === undefined) {
-          console.warn('THREE.ObjectLoader: Undefined image', data.image);
-        }
-
-        let texture;
-        const image = images[data.image];
-
-        if (Array.isArray(image)) {
-          texture = new CubeTexture(image);
-          if (image.length === 6) texture.needsUpdate = true;
-        } else {
-          if (image && image.data) {
-            texture = new DataTexture(image.data, image.width, image.height);
-          } else {
-            texture = new Texture(image);
-          }
-
-          if (image) texture.needsUpdate = true; // textures can have undefined image data
-        }
-
-        texture.uuid = data.uuid;
-        if (data.name !== undefined) texture.name = data.name;
-        if (data.mapping !== undefined) texture.mapping = parseConstant(data.mapping, TEXTURE_MAPPING);
-        if (data.offset !== undefined) texture.offset.fromArray(data.offset);
-        if (data.repeat !== undefined) texture.repeat.fromArray(data.repeat);
-        if (data.center !== undefined) texture.center.fromArray(data.center);
-        if (data.rotation !== undefined) texture.rotation = data.rotation;
-
-        if (data.wrap !== undefined) {
-          texture.wrapS = parseConstant(data.wrap[0], TEXTURE_WRAPPING);
-          texture.wrapT = parseConstant(data.wrap[1], TEXTURE_WRAPPING);
-        }
-
-        if (data.format !== undefined) texture.format = data.format;
-        if (data.type !== undefined) texture.type = data.type;
-        if (data.encoding !== undefined) texture.encoding = data.encoding;
-        if (data.minFilter !== undefined) texture.minFilter = parseConstant(data.minFilter, TEXTURE_FILTER);
-        if (data.magFilter !== undefined) texture.magFilter = parseConstant(data.magFilter, TEXTURE_FILTER);
-        if (data.anisotropy !== undefined) texture.anisotropy = data.anisotropy;
-        if (data.flipY !== undefined) texture.flipY = data.flipY;
-        if (data.premultiplyAlpha !== undefined) texture.premultiplyAlpha = data.premultiplyAlpha;
-        if (data.unpackAlignment !== undefined) texture.unpackAlignment = data.unpackAlignment;
-        textures[data.uuid] = texture;
-      }
-    }
-
-    return textures;
-  }
-
-  parseObject(data, geometries, materials, animations) {
-    let object;
-
-    function getGeometry(name) {
-      if (geometries[name] === undefined) {
-        console.warn('THREE.ObjectLoader: Undefined geometry', name);
-      }
-
-      return geometries[name];
-    }
-
-    function getMaterial(name) {
-      if (name === undefined) return undefined;
-
-      if (Array.isArray(name)) {
-        const array = [];
-
-        for (let i = 0, l = name.length; i < l; i++) {
-          const uuid = name[i];
-
-          if (materials[uuid] === undefined) {
-            console.warn('THREE.ObjectLoader: Undefined material', uuid);
-          }
-
-          array.push(materials[uuid]);
-        }
-
-        return array;
-      }
-
-      if (materials[name] === undefined) {
-        console.warn('THREE.ObjectLoader: Undefined material', name);
-      }
-
-      return materials[name];
-    }
-
-    let geometry, material;
-
-    switch (data.type) {
-      case 'Scene':
-        object = new Scene();
-
-        if (data.background !== undefined) {
-          if (Number.isInteger(data.background)) {
-            object.background = new Color(data.background);
-          }
-        }
-
-        if (data.fog !== undefined) {
-          if (data.fog.type === 'Fog') {
-            object.fog = new Fog(data.fog.color, data.fog.near, data.fog.far);
-          } else if (data.fog.type === 'FogExp2') {
-            object.fog = new FogExp2(data.fog.color, data.fog.density);
-          }
-        }
-
-        break;
-
-      case 'PerspectiveCamera':
-        object = new PerspectiveCamera(data.fov, data.aspect, data.near, data.far);
-        if (data.focus !== undefined) object.focus = data.focus;
-        if (data.zoom !== undefined) object.zoom = data.zoom;
-        if (data.filmGauge !== undefined) object.filmGauge = data.filmGauge;
-        if (data.filmOffset !== undefined) object.filmOffset = data.filmOffset;
-        if (data.view !== undefined) object.view = Object.assign({}, data.view);
-        break;
-
-      case 'OrthographicCamera':
-        object = new OrthographicCamera(data.left, data.right, data.top, data.bottom, data.near, data.far);
-        if (data.zoom !== undefined) object.zoom = data.zoom;
-        if (data.view !== undefined) object.view = Object.assign({}, data.view);
-        break;
-
-      case 'AmbientLight':
-        object = new AmbientLight(data.color, data.intensity);
-        break;
-
-      case 'DirectionalLight':
-        object = new DirectionalLight(data.color, data.intensity);
-        break;
-
-      case 'PointLight':
-        object = new PointLight(data.color, data.intensity, data.distance, data.decay);
-        break;
-
-      case 'RectAreaLight':
-        object = new RectAreaLight(data.color, data.intensity, data.width, data.height);
-        break;
-
-      case 'SpotLight':
-        object = new SpotLight(data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay);
-        break;
-
-      case 'HemisphereLight':
-        object = new HemisphereLight(data.color, data.groundColor, data.intensity);
-        break;
-
-      case 'LightProbe':
-        object = new LightProbe().fromJSON(data);
-        break;
-
-      case 'SkinnedMesh':
-        geometry = getGeometry(data.geometry);
-        material = getMaterial(data.material);
-        object = new SkinnedMesh(geometry, material);
-        if (data.bindMode !== undefined) object.bindMode = data.bindMode;
-        if (data.bindMatrix !== undefined) object.bindMatrix.fromArray(data.bindMatrix);
-        if (data.skeleton !== undefined) object.skeleton = data.skeleton;
-        break;
-
-      case 'Mesh':
-        geometry = getGeometry(data.geometry);
-        material = getMaterial(data.material);
-        object = new Mesh(geometry, material);
-        break;
-
-      case 'InstancedMesh':
-        geometry = getGeometry(data.geometry);
-        material = getMaterial(data.material);
-        const count = data.count;
-        const instanceMatrix = data.instanceMatrix;
-        object = new InstancedMesh(geometry, material, count);
-        object.instanceMatrix = new BufferAttribute(new Float32Array(instanceMatrix.array), 16);
-        break;
-
-      case 'LOD':
-        object = new LOD();
-        break;
-
-      case 'Line':
-        object = new Line(getGeometry(data.geometry), getMaterial(data.material));
-        break;
-
-      case 'LineLoop':
-        object = new LineLoop(getGeometry(data.geometry), getMaterial(data.material));
-        break;
-
-      case 'LineSegments':
-        object = new LineSegments(getGeometry(data.geometry), getMaterial(data.material));
-        break;
-
-      case 'PointCloud':
-      case 'Points':
-        object = new Points(getGeometry(data.geometry), getMaterial(data.material));
-        break;
-
-      case 'Sprite':
-        object = new Sprite(getMaterial(data.material));
-        break;
-
-      case 'Group':
-        object = new Group();
-        break;
-
-      case 'Bone':
-        object = new Bone();
-        break;
-
-      default:
-        object = new Object3D();
-    }
-
-    object.uuid = data.uuid;
-    if (data.name !== undefined) object.name = data.name;
-
-    if (data.matrix !== undefined) {
-      object.matrix.fromArray(data.matrix);
-      if (data.matrixAutoUpdate !== undefined) object.matrixAutoUpdate = data.matrixAutoUpdate;
-      if (object.matrixAutoUpdate) object.matrix.decompose(object.position, object.quaternion, object.scale);
-    } else {
-      if (data.position !== undefined) object.position.fromArray(data.position);
-      if (data.rotation !== undefined) object.rotation.fromArray(data.rotation);
-      if (data.quaternion !== undefined) object.quaternion.fromArray(data.quaternion);
-      if (data.scale !== undefined) object.scale.fromArray(data.scale);
-    }
-
-    if (data.castShadow !== undefined) object.castShadow = data.castShadow;
-    if (data.receiveShadow !== undefined) object.receiveShadow = data.receiveShadow;
-
-    if (data.shadow) {
-      if (data.shadow.bias !== undefined) object.shadow.bias = data.shadow.bias;
-      if (data.shadow.normalBias !== undefined) object.shadow.normalBias = data.shadow.normalBias;
-      if (data.shadow.radius !== undefined) object.shadow.radius = data.shadow.radius;
-      if (data.shadow.mapSize !== undefined) object.shadow.mapSize.fromArray(data.shadow.mapSize);
-      if (data.shadow.camera !== undefined) object.shadow.camera = this.parseObject(data.shadow.camera);
-    }
-
-    if (data.visible !== undefined) object.visible = data.visible;
-    if (data.frustumCulled !== undefined) object.frustumCulled = data.frustumCulled;
-    if (data.renderOrder !== undefined) object.renderOrder = data.renderOrder;
-    if (data.userData !== undefined) object.userData = data.userData;
-    if (data.layers !== undefined) object.layers.mask = data.layers;
-
-    if (data.children !== undefined) {
-      const children = data.children;
-
-      for (let i = 0; i < children.length; i++) {
-        object.add(this.parseObject(children[i], geometries, materials, animations));
-      }
-    }
-
-    if (data.animations !== undefined) {
-      const objectAnimations = data.animations;
-
-      for (let i = 0; i < objectAnimations.length; i++) {
-        const uuid = objectAnimations[i];
-        object.animations.push(animations[uuid]);
-      }
-    }
-
-    if (data.type === 'LOD') {
-      if (data.autoUpdate !== undefined) object.autoUpdate = data.autoUpdate;
-      const levels = data.levels;
-
-      for (let l = 0; l < levels.length; l++) {
-        const level = levels[l];
-        const child = object.getObjectByProperty('uuid', level.object);
-
-        if (child !== undefined) {
-          object.addLevel(child, level.distance);
-        }
-      }
-    }
-
-    return object;
-  }
-
-  bindSkeletons(object, skeletons) {
-    if (Object.keys(skeletons).length === 0) return;
-    object.traverse(function (child) {
-      if (child.isSkinnedMesh === true && child.skeleton !== undefined) {
-        const skeleton = skeletons[child.skeleton];
-
-        if (skeleton === undefined) {
-          console.warn('THREE.ObjectLoader: No skeleton found with UUID:', child.skeleton);
-        } else {
-          child.bind(skeleton, child.bindMatrix);
-        }
-      }
-    });
-  }
-  /* DEPRECATED */
-
-
-  setTexturePath(value) {
-    console.warn('THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath().');
-    return this.setResourcePath(value);
-  }
-
-}
-
-exports.ObjectLoader = ObjectLoader;
-const TEXTURE_MAPPING = {
-  UVMapping: UVMapping,
-  CubeReflectionMapping: CubeReflectionMapping,
-  CubeRefractionMapping: CubeRefractionMapping,
-  EquirectangularReflectionMapping: EquirectangularReflectionMapping,
-  EquirectangularRefractionMapping: EquirectangularRefractionMapping,
-  CubeUVReflectionMapping: CubeUVReflectionMapping,
-  CubeUVRefractionMapping: CubeUVRefractionMapping
-};
-const TEXTURE_WRAPPING = {
-  RepeatWrapping: RepeatWrapping,
-  ClampToEdgeWrapping: ClampToEdgeWrapping,
-  MirroredRepeatWrapping: MirroredRepeatWrapping
-};
-const TEXTURE_FILTER = {
-  NearestFilter: NearestFilter,
-  NearestMipmapNearestFilter: NearestMipmapNearestFilter,
-  NearestMipmapLinearFilter: NearestMipmapLinearFilter,
-  LinearFilter: LinearFilter,
-  LinearMipmapNearestFilter: LinearMipmapNearestFilter,
-  LinearMipmapLinearFilter: LinearMipmapLinearFilter
-};
-
-function ImageBitmapLoader(manager) {
-  if (typeof createImageBitmap === 'undefined') {
-    console.warn('THREE.ImageBitmapLoader: createImageBitmap() not supported.');
-  }
-
-  if (typeof fetch === 'undefined') {
-    console.warn('THREE.ImageBitmapLoader: fetch() not supported.');
-  }
-
-  Loader.call(this, manager);
-  this.options = {
-    premultiplyAlpha: 'none'
-  };
-}
-
-ImageBitmapLoader.prototype = Object.assign(Object.create(Loader.prototype), {
-  constructor: ImageBitmapLoader,
-  isImageBitmapLoader: true,
-  setOptions: function setOptions(options) {
-    this.options = options;
-    return this;
-  },
-  load: function (url, onLoad, onProgress, onError) {
-    if (url === undefined) url = '';
-    if (this.path !== undefined) url = this.path + url;
-    url = this.manager.resolveURL(url);
-    const scope = this;
-    const cached = Cache.get(url);
-
-    if (cached !== undefined) {
-      scope.manager.itemStart(url);
-      setTimeout(function () {
-        if (onLoad) onLoad(cached);
-        scope.manager.itemEnd(url);
-      }, 0);
-      return cached;
-    }
-
-    const fetchOptions = {};
-    fetchOptions.credentials = this.crossOrigin === 'anonymous' ? 'same-origin' : 'include';
-    fetchOptions.headers = this.requestHeader;
-    fetch(url, fetchOptions).then(function (res) {
-      return res.blob();
-    }).then(function (blob) {
-      return createImageBitmap(blob, Object.assign(scope.options, {
-        colorSpaceConversion: 'none'
-      }));
-    }).then(function (imageBitmap) {
-      Cache.add(url, imageBitmap);
-      if (onLoad) onLoad(imageBitmap);
-      scope.manager.itemEnd(url);
-    }).catch(function (e) {
-      if (onError) onError(e);
-      scope.manager.itemError(url);
-      scope.manager.itemEnd(url);
-    });
-    scope.manager.itemStart(url);
-  }
-});
-
-class ShapePath {
-  constructor() {
-    this.type = 'ShapePath';
-    this.color = new Color();
-    this.subPaths = [];
-    this.currentPath = null;
-  }
-
-  moveTo(x, y) {
-    this.currentPath = new Path();
-    this.subPaths.push(this.currentPath);
-    this.currentPath.moveTo(x, y);
-    return this;
-  }
-
-  lineTo(x, y) {
-    this.currentPath.lineTo(x, y);
-    return this;
-  }
-
-  quadraticCurveTo(aCPx, aCPy, aX, aY) {
-    this.currentPath.quadraticCurveTo(aCPx, aCPy, aX, aY);
-    return this;
-  }
-
-  bezierCurveTo(aCP1x, aCP1y, aCP2x, aCP2y, aX, aY) {
-    this.currentPath.bezierCurveTo(aCP1x, aCP1y, aCP2x, aCP2y, aX, aY);
-    return this;
-  }
-
-  splineThru(pts) {
-    this.currentPath.splineThru(pts);
-    return this;
-  }
-
-  toShapes(isCCW, noHoles) {
-    function toShapesNoHoles(inSubpaths) {
-      const shapes = [];
-
-      for (let i = 0, l = inSubpaths.length; i < l; i++) {
-        const tmpPath = inSubpaths[i];
-        const tmpShape = new Shape();
-        tmpShape.curves = tmpPath.curves;
-        shapes.push(tmpShape);
-      }
-
-      return shapes;
-    }
-
-    function isPointInsidePolygon(inPt, inPolygon) {
-      const polyLen = inPolygon.length; // inPt on polygon contour => immediate success    or
-      // toggling of inside/outside at every single! intersection point of an edge
-      //  with the horizontal line through inPt, left of inPt
-      //  not counting lowerY endpoints of edges and whole edges on that line
-
-      let inside = false;
-
-      for (let p = polyLen - 1, q = 0; q < polyLen; p = q++) {
-        let edgeLowPt = inPolygon[p];
-        let edgeHighPt = inPolygon[q];
-        let edgeDx = edgeHighPt.x - edgeLowPt.x;
-        let edgeDy = edgeHighPt.y - edgeLowPt.y;
-
-        if (Math.abs(edgeDy) > Number.EPSILON) {
-          // not parallel
-          if (edgeDy < 0) {
-            edgeLowPt = inPolygon[q];
-            edgeDx = -edgeDx;
-            edgeHighPt = inPolygon[p];
-            edgeDy = -edgeDy;
-          }
-
-          if (inPt.y < edgeLowPt.y || inPt.y > edgeHighPt.y) continue;
-
-          if (inPt.y === edgeLowPt.y) {
-            if (inPt.x === edgeLowPt.x) return true; // inPt is on contour ?
-            // continue;				// no intersection or edgeLowPt => doesn't count !!!
-          } else {
-            const perpEdge = edgeDy * (inPt.x - edgeLowPt.x) - edgeDx * (inPt.y - edgeLowPt.y);
-            if (perpEdge === 0) return true; // inPt is on contour ?
-
-            if (perpEdge < 0) continue;
-            inside = !inside; // true intersection left of inPt
-          }
-        } else {
-          // parallel or collinear
-          if (inPt.y !== edgeLowPt.y) continue; // parallel
-          // edge lies on the same horizontal line as inPt
-
-          if (edgeHighPt.x <= inPt.x && inPt.x <= edgeLowPt.x || edgeLowPt.x <= inPt.x && inPt.x <= edgeHighPt.x) return true; // inPt: Point on contour !
-          // continue;
-        }
-      }
-
-      return inside;
-    }
-
-    const isClockWise = ShapeUtils.isClockWise;
-    const subPaths = this.subPaths;
-    if (subPaths.length === 0) return [];
-    if (noHoles === true) return toShapesNoHoles(subPaths);
-    let solid, tmpPath, tmpShape;
-    const shapes = [];
-
-    if (subPaths.length === 1) {
-      tmpPath = subPaths[0];
-      tmpShape = new Shape();
-      tmpShape.curves = tmpPath.curves;
-      shapes.push(tmpShape);
-      return shapes;
-    }
-
-    let holesFirst = !isClockWise(subPaths[0].getPoints());
-    holesFirst = isCCW ? !holesFirst : holesFirst; // console.log("Holes first", holesFirst);
-
-    const betterShapeHoles = [];
-    const newShapes = [];
-    let newShapeHoles = [];
-    let mainIdx = 0;
-    let tmpPoints;
-    newShapes[mainIdx] = undefined;
-    newShapeHoles[mainIdx] = [];
-
-    for (let i = 0, l = subPaths.length; i < l; i++) {
-      tmpPath = subPaths[i];
-      tmpPoints = tmpPath.getPoints();
-      solid = isClockWise(tmpPoints);
-      solid = isCCW ? !solid : solid;
-
-      if (solid) {
-        if (!holesFirst && newShapes[mainIdx]) mainIdx++;
-        newShapes[mainIdx] = {
-          s: new Shape(),
-          p: tmpPoints
-        };
-        newShapes[mainIdx].s.curves = tmpPath.curves;
-        if (holesFirst) mainIdx++;
-        newShapeHoles[mainIdx] = []; //console.log('cw', i);
-      } else {
-        newShapeHoles[mainIdx].push({
-          h: tmpPath,
-          p: tmpPoints[0]
-        }); //console.log('ccw', i);
-      }
-    } // only Holes? -> probably all Shapes with wrong orientation
-
-
-    if (!newShapes[0]) return toShapesNoHoles(subPaths);
-
-    if (newShapes.length > 1) {
-      let ambiguous = false;
-      const toChange = [];
-
-      for (let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx++) {
-        betterShapeHoles[sIdx] = [];
-      }
-
-      for (let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx++) {
-        const sho = newShapeHoles[sIdx];
-
-        for (let hIdx = 0; hIdx < sho.length; hIdx++) {
-          const ho = sho[hIdx];
-          let hole_unassigned = true;
-
-          for (let s2Idx = 0; s2Idx < newShapes.length; s2Idx++) {
-            if (isPointInsidePolygon(ho.p, newShapes[s2Idx].p)) {
-              if (sIdx !== s2Idx) toChange.push({
-                froms: sIdx,
-                tos: s2Idx,
-                hole: hIdx
-              });
-
-              if (hole_unassigned) {
-                hole_unassigned = false;
-                betterShapeHoles[s2Idx].push(ho);
-              } else {
-                ambiguous = true;
-              }
-            }
-          }
-
-          if (hole_unassigned) {
-            betterShapeHoles[sIdx].push(ho);
-          }
-        }
-      } // console.log("ambiguous: ", ambiguous);
-
-
-      if (toChange.length > 0) {
-        // console.log("to change: ", toChange);
-        if (!ambiguous) newShapeHoles = betterShapeHoles;
-      }
-    }
-
-    let tmpHoles;
-
-    for (let i = 0, il = newShapes.length; i < il; i++) {
-      tmpShape = newShapes[i].s;
-      shapes.push(tmpShape);
-      tmpHoles = newShapeHoles[i];
-
-      for (let j = 0, jl = tmpHoles.length; j < jl; j++) {
-        tmpShape.holes.push(tmpHoles[j].h);
-      }
-    } //console.log("shape", shapes);
-
-
-    return shapes;
-  }
-
-}
-
-exports.ShapePath = ShapePath;
-
-class Font {
-  constructor(data) {
-    this.type = 'Font';
-    this.data = data;
-  }
-
-  generateShapes(text, size = 100) {
-    const shapes = [];
-    const paths = createPaths(text, size, this.data);
-
-    for (let p = 0, pl = paths.length; p < pl; p++) {
-      Array.prototype.push.apply(shapes, paths[p].toShapes());
-    }
-
-    return shapes;
-  }
-
-}
-
-exports.Font = Font;
-
-function createPaths(text, size, data) {
-  const chars = Array.from(text);
-  const scale = size / data.resolution;
-  const line_height = (data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness) * scale;
-  const paths = [];
-  let offsetX = 0,
-      offsetY = 0;
-
-  for (let i = 0; i < chars.length; i++) {
-    const char = chars[i];
-
-    if (char === '\n') {
-      offsetX = 0;
-      offsetY -= line_height;
-    } else {
-      const ret = createPath(char, scale, offsetX, offsetY, data);
-      offsetX += ret.offsetX;
-      paths.push(ret.path);
-    }
-  }
-
-  return paths;
-}
-
-function createPath(char, scale, offsetX, offsetY, data) {
-  const glyph = data.glyphs[char] || data.glyphs['?'];
-
-  if (!glyph) {
-    console.error('THREE.Font: character "' + char + '" does not exists in font family ' + data.familyName + '.');
-    return;
-  }
-
-  const path = new ShapePath();
-  let x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2;
-
-  if (glyph.o) {
-    const outline = glyph._cachedOutline || (glyph._cachedOutline = glyph.o.split(' '));
-
-    for (let i = 0, l = outline.length; i < l;) {
-      const action = outline[i++];
-
-      switch (action) {
-        case 'm':
-          // moveTo
-          x = outline[i++] * scale + offsetX;
-          y = outline[i++] * scale + offsetY;
-          path.moveTo(x, y);
-          break;
-
-        case 'l':
-          // lineTo
-          x = outline[i++] * scale + offsetX;
-          y = outline[i++] * scale + offsetY;
-          path.lineTo(x, y);
-          break;
-
-        case 'q':
-          // quadraticCurveTo
-          cpx = outline[i++] * scale + offsetX;
-          cpy = outline[i++] * scale + offsetY;
-          cpx1 = outline[i++] * scale + offsetX;
-          cpy1 = outline[i++] * scale + offsetY;
-          path.quadraticCurveTo(cpx1, cpy1, cpx, cpy);
-          break;
-
-        case 'b':
-          // bezierCurveTo
-          cpx = outline[i++] * scale + offsetX;
-          cpy = outline[i++] * scale + offsetY;
-          cpx1 = outline[i++] * scale + offsetX;
-          cpy1 = outline[i++] * scale + offsetY;
-          cpx2 = outline[i++] * scale + offsetX;
-          cpy2 = outline[i++] * scale + offsetY;
-          path.bezierCurveTo(cpx1, cpy1, cpx2, cpy2, cpx, cpy);
-          break;
-      }
-    }
-  }
-
-  return {
-    offsetX: glyph.ha * scale,
-    path: path
-  };
-}
-
-Font.prototype.isFont = true;
-
-class FontLoader extends Loader {
-  constructor(manager) {
-    super(manager);
-  }
-
-  load(url, onLoad, onProgress, onError) {
-    const scope = this;
-    const loader = new FileLoader(this.manager);
-    loader.setPath(this.path);
-    loader.setRequestHeader(this.requestHeader);
-    loader.setWithCredentials(scope.withCredentials);
-    loader.load(url, function (text) {
-      let json;
-
-      try {
-        json = JSON.parse(text);
-      } catch (e) {
-        console.warn('THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.');
-        json = JSON.parse(text.substring(65, text.length - 2));
-      }
-
-      const font = scope.parse(json);
-      if (onLoad) onLoad(font);
-    }, onProgress, onError);
-  }
-
-  parse(json) {
-    return new Font(json);
-  }
-
-}
-
-exports.FontLoader = FontLoader;
-
-let _context;
-
-const AudioContext = {
-  getContext: function () {
-    if (_context === undefined) {
-      _context = new (window.AudioContext || window.webkitAudioContext)();
-    }
-
-    return _context;
-  },
-  setContext: function (value) {
-    _context = value;
-  }
-};
-exports.AudioContext = AudioContext;
-
-class AudioLoader extends Loader {
-  constructor(manager) {
-    super(manager);
-  }
-
-  load(url, onLoad, onProgress, onError) {
-    const scope = this;
-    const loader = new FileLoader(this.manager);
-    loader.setResponseType('arraybuffer');
-    loader.setPath(this.path);
-    loader.setRequestHeader(this.requestHeader);
-    loader.setWithCredentials(this.withCredentials);
-    loader.load(url, function (buffer) {
-      try {
-        // Create a copy of the buffer. The `decodeAudioData` method
-        // detaches the buffer when complete, preventing reuse.
-        const bufferCopy = buffer.slice(0);
-        const context = AudioContext.getContext();
-        context.decodeAudioData(bufferCopy, function (audioBuffer) {
-          onLoad(audioBuffer);
-        });
-      } catch (e) {
-        if (onError) {
-          onError(e);
-        } else {
-          console.error(e);
-        }
-
-        scope.manager.itemError(url);
-      }
-    }, onProgress, onError);
-  }
-
-}
-
-exports.AudioLoader = AudioLoader;
-
-class HemisphereLightProbe extends LightProbe {
-  constructor(skyColor, groundColor, intensity = 1) {
-    super(undefined, intensity);
-    const color1 = new Color().set(skyColor);
-    const color2 = new Color().set(groundColor);
-    const sky = new Vector3(color1.r, color1.g, color1.b);
-    const ground = new Vector3(color2.r, color2.g, color2.b); // without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI );
-
-    const c0 = Math.sqrt(Math.PI);
-    const c1 = c0 * Math.sqrt(0.75);
-    this.sh.coefficients[0].copy(sky).add(ground).multiplyScalar(c0);
-    this.sh.coefficients[1].copy(sky).sub(ground).multiplyScalar(c1);
-  }
-
-}
-
-exports.HemisphereLightProbe = HemisphereLightProbe;
-HemisphereLightProbe.prototype.isHemisphereLightProbe = true;
-
-class AmbientLightProbe extends LightProbe {
-  constructor(color, intensity = 1) {
-    super(undefined, intensity);
-    const color1 = new Color().set(color); // without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI );
-
-    this.sh.coefficients[0].set(color1.r, color1.g, color1.b).multiplyScalar(2 * Math.sqrt(Math.PI));
-  }
-
-}
-
-exports.AmbientLightProbe = AmbientLightProbe;
-AmbientLightProbe.prototype.isAmbientLightProbe = true;
-
-const _eyeRight = new Matrix4();
-
-const _eyeLeft = new Matrix4();
-
-class StereoCamera {
-  constructor() {
-    this.type = 'StereoCamera';
-    this.aspect = 1;
-    this.eyeSep = 0.064;
-    this.cameraL = new PerspectiveCamera();
-    this.cameraL.layers.enable(1);
-    this.cameraL.matrixAutoUpdate = false;
-    this.cameraR = new PerspectiveCamera();
-    this.cameraR.layers.enable(2);
-    this.cameraR.matrixAutoUpdate = false;
-    this._cache = {
-      focus: null,
-      fov: null,
-      aspect: null,
-      near: null,
-      far: null,
-      zoom: null,
-      eyeSep: null
-    };
-  }
-
-  update(camera) {
-    const cache = this._cache;
-    const needsUpdate = cache.focus !== camera.focus || cache.fov !== camera.fov || cache.aspect !== camera.aspect * this.aspect || cache.near !== camera.near || cache.far !== camera.far || cache.zoom !== camera.zoom || cache.eyeSep !== this.eyeSep;
-
-    if (needsUpdate) {
-      cache.focus = camera.focus;
-      cache.fov = camera.fov;
-      cache.aspect = camera.aspect * this.aspect;
-      cache.near = camera.near;
-      cache.far = camera.far;
-      cache.zoom = camera.zoom;
-      cache.eyeSep = this.eyeSep; // Off-axis stereoscopic effect based on
-      // http://paulbourke.net/stereographics/stereorender/
-
-      const projectionMatrix = camera.projectionMatrix.clone();
-      const eyeSepHalf = cache.eyeSep / 2;
-      const eyeSepOnProjection = eyeSepHalf * cache.near / cache.focus;
-      const ymax = cache.near * Math.tan(MathUtils.DEG2RAD * cache.fov * 0.5) / cache.zoom;
-      let xmin, xmax; // translate xOffset
-
-      _eyeLeft.elements[12] = -eyeSepHalf;
-      _eyeRight.elements[12] = eyeSepHalf; // for left eye
-
-      xmin = -ymax * cache.aspect + eyeSepOnProjection;
-      xmax = ymax * cache.aspect + eyeSepOnProjection;
-      projectionMatrix.elements[0] = 2 * cache.near / (xmax - xmin);
-      projectionMatrix.elements[8] = (xmax + xmin) / (xmax - xmin);
-      this.cameraL.projectionMatrix.copy(projectionMatrix); // for right eye
-
-      xmin = -ymax * cache.aspect - eyeSepOnProjection;
-      xmax = ymax * cache.aspect - eyeSepOnProjection;
-      projectionMatrix.elements[0] = 2 * cache.near / (xmax - xmin);
-      projectionMatrix.elements[8] = (xmax + xmin) / (xmax - xmin);
-      this.cameraR.projectionMatrix.copy(projectionMatrix);
-    }
-
-    this.cameraL.matrixWorld.copy(camera.matrixWorld).multiply(_eyeLeft);
-    this.cameraR.matrixWorld.copy(camera.matrixWorld).multiply(_eyeRight);
-  }
-
-}
-
-exports.StereoCamera = StereoCamera;
-
-class Clock {
-  constructor(autoStart) {
-    this.autoStart = autoStart !== undefined ? autoStart : true;
-    this.startTime = 0;
-    this.oldTime = 0;
-    this.elapsedTime = 0;
-    this.running = false;
-  }
-
-  start() {
-    this.startTime = now();
-    this.oldTime = this.startTime;
-    this.elapsedTime = 0;
-    this.running = true;
-  }
-
-  stop() {
-    this.getElapsedTime();
-    this.running = false;
-    this.autoStart = false;
-  }
-
-  getElapsedTime() {
-    this.getDelta();
-    return this.elapsedTime;
-  }
-
-  getDelta() {
-    let diff = 0;
-
-    if (this.autoStart && !this.running) {
-      this.start();
-      return 0;
-    }
-
-    if (this.running) {
-      const newTime = now();
-      diff = (newTime - this.oldTime) / 1000;
-      this.oldTime = newTime;
-      this.elapsedTime += diff;
-    }
-
-    return diff;
-  }
-
-}
-
-exports.Clock = Clock;
-
-function now() {
-  return (typeof performance === 'undefined' ? Date : performance).now(); // see #10732
-}
-
-const _position$2 =
-/*@__PURE__*/
-new Vector3();
-
-const _quaternion$3 =
-/*@__PURE__*/
-new Quaternion();
-
-const _scale$1 =
-/*@__PURE__*/
-new Vector3();
-
-const _orientation =
-/*@__PURE__*/
-new Vector3();
-
-class AudioListener extends Object3D {
-  constructor() {
-    super();
-    this.type = 'AudioListener';
-    this.context = AudioContext.getContext();
-    this.gain = this.context.createGain();
-    this.gain.connect(this.context.destination);
-    this.filter = null;
-    this.timeDelta = 0; // private
-
-    this._clock = new Clock();
-  }
-
-  getInput() {
-    return this.gain;
-  }
-
-  removeFilter() {
-    if (this.filter !== null) {
-      this.gain.disconnect(this.filter);
-      this.filter.disconnect(this.context.destination);
-      this.gain.connect(this.context.destination);
-      this.filter = null;
-    }
-
-    return this;
-  }
-
-  getFilter() {
-    return this.filter;
-  }
-
-  setFilter(value) {
-    if (this.filter !== null) {
-      this.gain.disconnect(this.filter);
-      this.filter.disconnect(this.context.destination);
-    } else {
-      this.gain.disconnect(this.context.destination);
-    }
-
-    this.filter = value;
-    this.gain.connect(this.filter);
-    this.filter.connect(this.context.destination);
-    return this;
-  }
-
-  getMasterVolume() {
-    return this.gain.gain.value;
-  }
-
-  setMasterVolume(value) {
-    this.gain.gain.setTargetAtTime(value, this.context.currentTime, 0.01);
-    return this;
-  }
-
-  updateMatrixWorld(force) {
-    super.updateMatrixWorld(force);
-    const listener = this.context.listener;
-    const up = this.up;
-    this.timeDelta = this._clock.getDelta();
-    this.matrixWorld.decompose(_position$2, _quaternion$3, _scale$1);
-
-    _orientation.set(0, 0, -1).applyQuaternion(_quaternion$3);
-
-    if (listener.positionX) {
-      // code path for Chrome (see #14393)
-      const endTime = this.context.currentTime + this.timeDelta;
-      listener.positionX.linearRampToValueAtTime(_position$2.x, endTime);
-      listener.positionY.linearRampToValueAtTime(_position$2.y, endTime);
-      listener.positionZ.linearRampToValueAtTime(_position$2.z, endTime);
-      listener.forwardX.linearRampToValueAtTime(_orientation.x, endTime);
-      listener.forwardY.linearRampToValueAtTime(_orientation.y, endTime);
-      listener.forwardZ.linearRampToValueAtTime(_orientation.z, endTime);
-      listener.upX.linearRampToValueAtTime(up.x, endTime);
-      listener.upY.linearRampToValueAtTime(up.y, endTime);
-      listener.upZ.linearRampToValueAtTime(up.z, endTime);
-    } else {
-      listener.setPosition(_position$2.x, _position$2.y, _position$2.z);
-      listener.setOrientation(_orientation.x, _orientation.y, _orientation.z, up.x, up.y, up.z);
-    }
-  }
-
-}
-
-exports.AudioListener = AudioListener;
-
-class Audio extends Object3D {
-  constructor(listener) {
-    super();
-    this.type = 'Audio';
-    this.listener = listener;
-    this.context = listener.context;
-    this.gain = this.context.createGain();
-    this.gain.connect(listener.getInput());
-    this.autoplay = false;
-    this.buffer = null;
-    this.detune = 0;
-    this.loop = false;
-    this.loopStart = 0;
-    this.loopEnd = 0;
-    this.offset = 0;
-    this.duration = undefined;
-    this.playbackRate = 1;
-    this.isPlaying = false;
-    this.hasPlaybackControl = true;
-    this.source = null;
-    this.sourceType = 'empty';
-    this._startedAt = 0;
-    this._progress = 0;
-    this._connected = false;
-    this.filters = [];
-  }
-
-  getOutput() {
-    return this.gain;
-  }
-
-  setNodeSource(audioNode) {
-    this.hasPlaybackControl = false;
-    this.sourceType = 'audioNode';
-    this.source = audioNode;
-    this.connect();
-    return this;
-  }
-
-  setMediaElementSource(mediaElement) {
-    this.hasPlaybackControl = false;
-    this.sourceType = 'mediaNode';
-    this.source = this.context.createMediaElementSource(mediaElement);
-    this.connect();
-    return this;
-  }
-
-  setMediaStreamSource(mediaStream) {
-    this.hasPlaybackControl = false;
-    this.sourceType = 'mediaStreamNode';
-    this.source = this.context.createMediaStreamSource(mediaStream);
-    this.connect();
-    return this;
-  }
-
-  setBuffer(audioBuffer) {
-    this.buffer = audioBuffer;
-    this.sourceType = 'buffer';
-    if (this.autoplay) this.play();
-    return this;
-  }
-
-  play(delay = 0) {
-    if (this.isPlaying === true) {
-      console.warn('THREE.Audio: Audio is already playing.');
-      return;
-    }
-
-    if (this.hasPlaybackControl === false) {
-      console.warn('THREE.Audio: this Audio has no playback control.');
-      return;
-    }
-
-    this._startedAt = this.context.currentTime + delay;
-    const source = this.context.createBufferSource();
-    source.buffer = this.buffer;
-    source.loop = this.loop;
-    source.loopStart = this.loopStart;
-    source.loopEnd = this.loopEnd;
-    source.onended = this.onEnded.bind(this);
-    source.start(this._startedAt, this._progress + this.offset, this.duration);
-    this.isPlaying = true;
-    this.source = source;
-    this.setDetune(this.detune);
-    this.setPlaybackRate(this.playbackRate);
-    return this.connect();
-  }
-
-  pause() {
-    if (this.hasPlaybackControl === false) {
-      console.warn('THREE.Audio: this Audio has no playback control.');
-      return;
-    }
-
-    if (this.isPlaying === true) {
-      // update current progress
-      this._progress += Math.max(this.context.currentTime - this._startedAt, 0) * this.playbackRate;
-
-      if (this.loop === true) {
-        // ensure _progress does not exceed duration with looped audios
-        this._progress = this._progress % (this.duration || this.buffer.duration);
-      }
-
-      this.source.stop();
-      this.source.onended = null;
-      this.isPlaying = false;
-    }
-
-    return this;
-  }
-
-  stop() {
-    if (this.hasPlaybackControl === false) {
-      console.warn('THREE.Audio: this Audio has no playback control.');
-      return;
-    }
-
-    this._progress = 0;
-    this.source.stop();
-    this.source.onended = null;
-    this.isPlaying = false;
-    return this;
-  }
-
-  connect() {
-    if (this.filters.length > 0) {
-      this.source.connect(this.filters[0]);
-
-      for (let i = 1, l = this.filters.length; i < l; i++) {
-        this.filters[i - 1].connect(this.filters[i]);
-      }
-
-      this.filters[this.filters.length - 1].connect(this.getOutput());
-    } else {
-      this.source.connect(this.getOutput());
-    }
-
-    this._connected = true;
-    return this;
-  }
-
-  disconnect() {
-    if (this.filters.length > 0) {
-      this.source.disconnect(this.filters[0]);
-
-      for (let i = 1, l = this.filters.length; i < l; i++) {
-        this.filters[i - 1].disconnect(this.filters[i]);
-      }
-
-      this.filters[this.filters.length - 1].disconnect(this.getOutput());
-    } else {
-      this.source.disconnect(this.getOutput());
-    }
-
-    this._connected = false;
-    return this;
-  }
-
-  getFilters() {
-    return this.filters;
-  }
-
-  setFilters(value) {
-    if (!value) value = [];
-
-    if (this._connected === true) {
-      this.disconnect();
-      this.filters = value.slice();
-      this.connect();
-    } else {
-      this.filters = value.slice();
-    }
-
-    return this;
-  }
-
-  setDetune(value) {
-    this.detune = value;
-    if (this.source.detune === undefined) return; // only set detune when available
-
-    if (this.isPlaying === true) {
-      this.source.detune.setTargetAtTime(this.detune, this.context.currentTime, 0.01);
-    }
-
-    return this;
-  }
-
-  getDetune() {
-    return this.detune;
-  }
-
-  getFilter() {
-    return this.getFilters()[0];
-  }
-
-  setFilter(filter) {
-    return this.setFilters(filter ? [filter] : []);
-  }
-
-  setPlaybackRate(value) {
-    if (this.hasPlaybackControl === false) {
-      console.warn('THREE.Audio: this Audio has no playback control.');
-      return;
-    }
-
-    this.playbackRate = value;
-
-    if (this.isPlaying === true) {
-      this.source.playbackRate.setTargetAtTime(this.playbackRate, this.context.currentTime, 0.01);
-    }
-
-    return this;
-  }
-
-  getPlaybackRate() {
-    return this.playbackRate;
-  }
-
-  onEnded() {
-    this.isPlaying = false;
-  }
-
-  getLoop() {
-    if (this.hasPlaybackControl === false) {
-      console.warn('THREE.Audio: this Audio has no playback control.');
-      return false;
-    }
-
-    return this.loop;
-  }
-
-  setLoop(value) {
-    if (this.hasPlaybackControl === false) {
-      console.warn('THREE.Audio: this Audio has no playback control.');
-      return;
-    }
-
-    this.loop = value;
-
-    if (this.isPlaying === true) {
-      this.source.loop = this.loop;
-    }
-
-    return this;
-  }
-
-  setLoopStart(value) {
-    this.loopStart = value;
-    return this;
-  }
-
-  setLoopEnd(value) {
-    this.loopEnd = value;
-    return this;
-  }
-
-  getVolume() {
-    return this.gain.gain.value;
-  }
-
-  setVolume(value) {
-    this.gain.gain.setTargetAtTime(value, this.context.currentTime, 0.01);
-    return this;
-  }
-
-}
-
-exports.Audio = Audio;
-
-const _position$3 =
-/*@__PURE__*/
-new Vector3();
-
-const _quaternion$4 =
-/*@__PURE__*/
-new Quaternion();
-
-const _scale$2 =
-/*@__PURE__*/
-new Vector3();
-
-const _orientation$1 =
-/*@__PURE__*/
-new Vector3();
-
-class PositionalAudio extends Audio {
-  constructor(listener) {
-    super(listener);
-    this.panner = this.context.createPanner();
-    this.panner.panningModel = 'HRTF';
-    this.panner.connect(this.gain);
-  }
-
-  getOutput() {
-    return this.panner;
-  }
-
-  getRefDistance() {
-    return this.panner.refDistance;
-  }
-
-  setRefDistance(value) {
-    this.panner.refDistance = value;
-    return this;
-  }
-
-  getRolloffFactor() {
-    return this.panner.rolloffFactor;
-  }
-
-  setRolloffFactor(value) {
-    this.panner.rolloffFactor = value;
-    return this;
-  }
-
-  getDistanceModel() {
-    return this.panner.distanceModel;
-  }
-
-  setDistanceModel(value) {
-    this.panner.distanceModel = value;
-    return this;
-  }
-
-  getMaxDistance() {
-    return this.panner.maxDistance;
-  }
-
-  setMaxDistance(value) {
-    this.panner.maxDistance = value;
-    return this;
-  }
-
-  setDirectionalCone(coneInnerAngle, coneOuterAngle, coneOuterGain) {
-    this.panner.coneInnerAngle = coneInnerAngle;
-    this.panner.coneOuterAngle = coneOuterAngle;
-    this.panner.coneOuterGain = coneOuterGain;
-    return this;
-  }
-
-  updateMatrixWorld(force) {
-    super.updateMatrixWorld(force);
-    if (this.hasPlaybackControl === true && this.isPlaying === false) return;
-    this.matrixWorld.decompose(_position$3, _quaternion$4, _scale$2);
-
-    _orientation$1.set(0, 0, 1).applyQuaternion(_quaternion$4);
-
-    const panner = this.panner;
-
-    if (panner.positionX) {
-      // code path for Chrome and Firefox (see #14393)
-      const endTime = this.context.currentTime + this.listener.timeDelta;
-      panner.positionX.linearRampToValueAtTime(_position$3.x, endTime);
-      panner.positionY.linearRampToValueAtTime(_position$3.y, endTime);
-      panner.positionZ.linearRampToValueAtTime(_position$3.z, endTime);
-      panner.orientationX.linearRampToValueAtTime(_orientation$1.x, endTime);
-      panner.orientationY.linearRampToValueAtTime(_orientation$1.y, endTime);
-      panner.orientationZ.linearRampToValueAtTime(_orientation$1.z, endTime);
-    } else {
-      panner.setPosition(_position$3.x, _position$3.y, _position$3.z);
-      panner.setOrientation(_orientation$1.x, _orientation$1.y, _orientation$1.z);
-    }
-  }
-
-}
-
-exports.PositionalAudio = PositionalAudio;
-
-class AudioAnalyser {
-  constructor(audio, fftSize = 2048) {
-    this.analyser = audio.context.createAnalyser();
-    this.analyser.fftSize = fftSize;
-    this.data = new Uint8Array(this.analyser.frequencyBinCount);
-    audio.getOutput().connect(this.analyser);
-  }
-
-  getFrequencyData() {
-    this.analyser.getByteFrequencyData(this.data);
-    return this.data;
-  }
-
-  getAverageFrequency() {
-    let value = 0;
-    const data = this.getFrequencyData();
-
-    for (let i = 0; i < data.length; i++) {
-      value += data[i];
-    }
-
-    return value / data.length;
-  }
-
-}
-
-exports.AudioAnalyser = AudioAnalyser;
-
-class PropertyMixer {
-  constructor(binding, typeName, valueSize) {
-    this.binding = binding;
-    this.valueSize = valueSize;
-    let mixFunction, mixFunctionAdditive, setIdentity; // buffer layout: [ incoming | accu0 | accu1 | orig | addAccu | (optional work) ]
-    //
-    // interpolators can use .buffer as their .result
-    // the data then goes to 'incoming'
-    //
-    // 'accu0' and 'accu1' are used frame-interleaved for
-    // the cumulative result and are compared to detect
-    // changes
-    //
-    // 'orig' stores the original state of the property
-    //
-    // 'add' is used for additive cumulative results
-    //
-    // 'work' is optional and is only present for quaternion types. It is used
-    // to store intermediate quaternion multiplication results
-
-    switch (typeName) {
-      case 'quaternion':
-        mixFunction = this._slerp;
-        mixFunctionAdditive = this._slerpAdditive;
-        setIdentity = this._setAdditiveIdentityQuaternion;
-        this.buffer = new Float64Array(valueSize * 6);
-        this._workIndex = 5;
-        break;
-
-      case 'string':
-      case 'bool':
-        mixFunction = this._select; // Use the regular mix function and for additive on these types,
-        // additive is not relevant for non-numeric types
-
-        mixFunctionAdditive = this._select;
-        setIdentity = this._setAdditiveIdentityOther;
-        this.buffer = new Array(valueSize * 5);
-        break;
-
-      default:
-        mixFunction = this._lerp;
-        mixFunctionAdditive = this._lerpAdditive;
-        setIdentity = this._setAdditiveIdentityNumeric;
-        this.buffer = new Float64Array(valueSize * 5);
-    }
-
-    this._mixBufferRegion = mixFunction;
-    this._mixBufferRegionAdditive = mixFunctionAdditive;
-    this._setIdentity = setIdentity;
-    this._origIndex = 3;
-    this._addIndex = 4;
-    this.cumulativeWeight = 0;
-    this.cumulativeWeightAdditive = 0;
-    this.useCount = 0;
-    this.referenceCount = 0;
-  } // accumulate data in the 'incoming' region into 'accu<i>'
-
-
-  accumulate(accuIndex, weight) {
-    // note: happily accumulating nothing when weight = 0, the caller knows
-    // the weight and shouldn't have made the call in the first place
-    const buffer = this.buffer,
-          stride = this.valueSize,
-          offset = accuIndex * stride + stride;
-    let currentWeight = this.cumulativeWeight;
-
-    if (currentWeight === 0) {
-      // accuN := incoming * weight
-      for (let i = 0; i !== stride; ++i) {
-        buffer[offset + i] = buffer[i];
-      }
-
-      currentWeight = weight;
-    } else {
-      // accuN := accuN + incoming * weight
-      currentWeight += weight;
-      const mix = weight / currentWeight;
-
-      this._mixBufferRegion(buffer, offset, 0, mix, stride);
-    }
-
-    this.cumulativeWeight = currentWeight;
-  } // accumulate data in the 'incoming' region into 'add'
-
-
-  accumulateAdditive(weight) {
-    const buffer = this.buffer,
-          stride = this.valueSize,
-          offset = stride * this._addIndex;
-
-    if (this.cumulativeWeightAdditive === 0) {
-      // add = identity
-      this._setIdentity();
-    } // add := add + incoming * weight
-
-
-    this._mixBufferRegionAdditive(buffer, offset, 0, weight, stride);
-
-    this.cumulativeWeightAdditive += weight;
-  } // apply the state of 'accu<i>' to the binding when accus differ
-
-
-  apply(accuIndex) {
-    const stride = this.valueSize,
-          buffer = this.buffer,
-          offset = accuIndex * stride + stride,
-          weight = this.cumulativeWeight,
-          weightAdditive = this.cumulativeWeightAdditive,
-          binding = this.binding;
-    this.cumulativeWeight = 0;
-    this.cumulativeWeightAdditive = 0;
-
-    if (weight < 1) {
-      // accuN := accuN + original * ( 1 - cumulativeWeight )
-      const originalValueOffset = stride * this._origIndex;
-
-      this._mixBufferRegion(buffer, offset, originalValueOffset, 1 - weight, stride);
-    }
-
-    if (weightAdditive > 0) {
-      // accuN := accuN + additive accuN
-      this._mixBufferRegionAdditive(buffer, offset, this._addIndex * stride, 1, stride);
-    }
-
-    for (let i = stride, e = stride + stride; i !== e; ++i) {
-      if (buffer[i] !== buffer[i + stride]) {
-        // value has changed -> update scene graph
-        binding.setValue(buffer, offset);
-        break;
-      }
-    }
-  } // remember the state of the bound property and copy it to both accus
-
-
-  saveOriginalState() {
-    const binding = this.binding;
-    const buffer = this.buffer,
-          stride = this.valueSize,
-          originalValueOffset = stride * this._origIndex;
-    binding.getValue(buffer, originalValueOffset); // accu[0..1] := orig -- initially detect changes against the original
-
-    for (let i = stride, e = originalValueOffset; i !== e; ++i) {
-      buffer[i] = buffer[originalValueOffset + i % stride];
-    } // Add to identity for additive
-
-
-    this._setIdentity();
-
-    this.cumulativeWeight = 0;
-    this.cumulativeWeightAdditive = 0;
-  } // apply the state previously taken via 'saveOriginalState' to the binding
-
-
-  restoreOriginalState() {
-    const originalValueOffset = this.valueSize * 3;
-    this.binding.setValue(this.buffer, originalValueOffset);
-  }
-
-  _setAdditiveIdentityNumeric() {
-    const startIndex = this._addIndex * this.valueSize;
-    const endIndex = startIndex + this.valueSize;
-
-    for (let i = startIndex; i < endIndex; i++) {
-      this.buffer[i] = 0;
-    }
-  }
-
-  _setAdditiveIdentityQuaternion() {
-    this._setAdditiveIdentityNumeric();
-
-    this.buffer[this._addIndex * this.valueSize + 3] = 1;
-  }
-
-  _setAdditiveIdentityOther() {
-    const startIndex = this._origIndex * this.valueSize;
-    const targetIndex = this._addIndex * this.valueSize;
-
-    for (let i = 0; i < this.valueSize; i++) {
-      this.buffer[targetIndex + i] = this.buffer[startIndex + i];
-    }
-  } // mix functions
-
-
-  _select(buffer, dstOffset, srcOffset, t, stride) {
-    if (t >= 0.5) {
-      for (let i = 0; i !== stride; ++i) {
-        buffer[dstOffset + i] = buffer[srcOffset + i];
-      }
-    }
-  }
-
-  _slerp(buffer, dstOffset, srcOffset, t) {
-    Quaternion.slerpFlat(buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t);
-  }
-
-  _slerpAdditive(buffer, dstOffset, srcOffset, t, stride) {
-    const workOffset = this._workIndex * stride; // Store result in intermediate buffer offset
-
-    Quaternion.multiplyQuaternionsFlat(buffer, workOffset, buffer, dstOffset, buffer, srcOffset); // Slerp to the intermediate result
-
-    Quaternion.slerpFlat(buffer, dstOffset, buffer, dstOffset, buffer, workOffset, t);
-  }
-
-  _lerp(buffer, dstOffset, srcOffset, t, stride) {
-    const s = 1 - t;
-
-    for (let i = 0; i !== stride; ++i) {
-      const j = dstOffset + i;
-      buffer[j] = buffer[j] * s + buffer[srcOffset + i] * t;
-    }
-  }
-
-  _lerpAdditive(buffer, dstOffset, srcOffset, t, stride) {
-    for (let i = 0; i !== stride; ++i) {
-      const j = dstOffset + i;
-      buffer[j] = buffer[j] + buffer[srcOffset + i] * t;
-    }
-  }
-
-} // Characters [].:/ are reserved for track binding syntax.
-
-
-exports.PropertyMixer = PropertyMixer;
-const _RESERVED_CHARS_RE = '\\[\\]\\.:\\/';
-
-const _reservedRe = new RegExp('[' + _RESERVED_CHARS_RE + ']', 'g'); // Attempts to allow node names from any language. ES5's `\w` regexp matches
-// only latin characters, and the unicode \p{L} is not yet supported. So
-// instead, we exclude reserved characters and match everything else.
-
-
-const _wordChar = '[^' + _RESERVED_CHARS_RE + ']';
-
-const _wordCharOrDot = '[^' + _RESERVED_CHARS_RE.replace('\\.', '') + ']'; // Parent directories, delimited by '/' or ':'. Currently unused, but must
-// be matched to parse the rest of the track name.
-
-
-const _directoryRe = /((?:WC+[\/:])*)/.source.replace('WC', _wordChar); // Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
-
-
-const _nodeRe = /(WCOD+)?/.source.replace('WCOD', _wordCharOrDot); // Object on target node, and accessor. May not contain reserved
-// characters. Accessor may contain any character except closing bracket.
-
-
-const _objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace('WC', _wordChar); // Property and accessor. May not contain reserved characters. Accessor may
-// contain any non-bracket characters.
-
-
-const _propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace('WC', _wordChar);
-
-const _trackRe = new RegExp('' + '^' + _directoryRe + _nodeRe + _objectRe + _propertyRe + '$');
-
-const _supportedObjectNames = ['material', 'materials', 'bones'];
-
-function Composite(targetGroup, path, optionalParsedPath) {
-  const parsedPath = optionalParsedPath || PropertyBinding.parseTrackName(path);
-  this._targetGroup = targetGroup;
-  this._bindings = targetGroup.subscribe_(path, parsedPath);
-}
-
-Object.assign(Composite.prototype, {
-  getValue: function (array, offset) {
-    this.bind(); // bind all binding
-
-    const firstValidIndex = this._targetGroup.nCachedObjects_,
-          binding = this._bindings[firstValidIndex]; // and only call .getValue on the first
-
-    if (binding !== undefined) binding.getValue(array, offset);
-  },
-  setValue: function (array, offset) {
-    const bindings = this._bindings;
-
-    for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
-      bindings[i].setValue(array, offset);
-    }
-  },
-  bind: function () {
-    const bindings = this._bindings;
-
-    for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
-      bindings[i].bind();
-    }
-  },
-  unbind: function () {
-    const bindings = this._bindings;
-
-    for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
-      bindings[i].unbind();
-    }
-  }
-});
-
-function PropertyBinding(rootNode, path, parsedPath) {
-  this.path = path;
-  this.parsedPath = parsedPath || PropertyBinding.parseTrackName(path);
-  this.node = PropertyBinding.findNode(rootNode, this.parsedPath.nodeName) || rootNode;
-  this.rootNode = rootNode;
-}
-
-Object.assign(PropertyBinding, {
-  Composite: Composite,
-  create: function (root, path, parsedPath) {
-    if (!(root && root.isAnimationObjectGroup)) {
-      return new PropertyBinding(root, path, parsedPath);
-    } else {
-      return new PropertyBinding.Composite(root, path, parsedPath);
-    }
-  },
-
-  /**
-   * Replaces spaces with underscores and removes unsupported characters from
-   * node names, to ensure compatibility with parseTrackName().
-   *
-   * @param {string} name Node name to be sanitized.
-   * @return {string}
-   */
-  sanitizeNodeName: function (name) {
-    return name.replace(/\s/g, '_').replace(_reservedRe, '');
-  },
-  parseTrackName: function (trackName) {
-    const matches = _trackRe.exec(trackName);
-
-    if (!matches) {
-      throw new Error('PropertyBinding: Cannot parse trackName: ' + trackName);
-    }
-
-    const results = {
-      // directoryName: matches[ 1 ], // (tschw) currently unused
-      nodeName: matches[2],
-      objectName: matches[3],
-      objectIndex: matches[4],
-      propertyName: matches[5],
-      // required
-      propertyIndex: matches[6]
-    };
-    const lastDot = results.nodeName && results.nodeName.lastIndexOf('.');
-
-    if (lastDot !== undefined && lastDot !== -1) {
-      const objectName = results.nodeName.substring(lastDot + 1); // Object names must be checked against an allowlist. Otherwise, there
-      // is no way to parse 'foo.bar.baz': 'baz' must be a property, but
-      // 'bar' could be the objectName, or part of a nodeName (which can
-      // include '.' characters).
-
-      if (_supportedObjectNames.indexOf(objectName) !== -1) {
-        results.nodeName = results.nodeName.substring(0, lastDot);
-        results.objectName = objectName;
-      }
-    }
-
-    if (results.propertyName === null || results.propertyName.length === 0) {
-      throw new Error('PropertyBinding: can not parse propertyName from trackName: ' + trackName);
-    }
-
-    return results;
-  },
-  findNode: function (root, nodeName) {
-    if (!nodeName || nodeName === '' || nodeName === '.' || nodeName === -1 || nodeName === root.name || nodeName === root.uuid) {
-      return root;
-    } // search into skeleton bones.
-
-
-    if (root.skeleton) {
-      const bone = root.skeleton.getBoneByName(nodeName);
-
-      if (bone !== undefined) {
-        return bone;
-      }
-    } // search into node subtree.
-
-
-    if (root.children) {
-      const searchNodeSubtree = function (children) {
-        for (let i = 0; i < children.length; i++) {
-          const childNode = children[i];
-
-          if (childNode.name === nodeName || childNode.uuid === nodeName) {
-            return childNode;
-          }
-
-          const result = searchNodeSubtree(childNode.children);
-          if (result) return result;
-        }
-
-        return null;
-      };
-
-      const subTreeNode = searchNodeSubtree(root.children);
-
-      if (subTreeNode) {
-        return subTreeNode;
-      }
-    }
-
-    return null;
-  }
-});
-Object.assign(PropertyBinding.prototype, {
-  // prototype, continued
-  // these are used to "bind" a nonexistent property
-  _getValue_unavailable: function () {},
-  _setValue_unavailable: function () {},
-  BindingType: {
-    Direct: 0,
-    EntireArray: 1,
-    ArrayElement: 2,
-    HasFromToArray: 3
-  },
-  Versioning: {
-    None: 0,
-    NeedsUpdate: 1,
-    MatrixWorldNeedsUpdate: 2
-  },
-  GetterByBindingType: [function getValue_direct(buffer, offset) {
-    buffer[offset] = this.node[this.propertyName];
-  }, function getValue_array(buffer, offset) {
-    const source = this.resolvedProperty;
-
-    for (let i = 0, n = source.length; i !== n; ++i) {
-      buffer[offset++] = source[i];
-    }
-  }, function getValue_arrayElement(buffer, offset) {
-    buffer[offset] = this.resolvedProperty[this.propertyIndex];
-  }, function getValue_toArray(buffer, offset) {
-    this.resolvedProperty.toArray(buffer, offset);
-  }],
-  SetterByBindingTypeAndVersioning: [[// Direct
-  function setValue_direct(buffer, offset) {
-    this.targetObject[this.propertyName] = buffer[offset];
-  }, function setValue_direct_setNeedsUpdate(buffer, offset) {
-    this.targetObject[this.propertyName] = buffer[offset];
-    this.targetObject.needsUpdate = true;
-  }, function setValue_direct_setMatrixWorldNeedsUpdate(buffer, offset) {
-    this.targetObject[this.propertyName] = buffer[offset];
-    this.targetObject.matrixWorldNeedsUpdate = true;
-  }], [// EntireArray
-  function setValue_array(buffer, offset) {
-    const dest = this.resolvedProperty;
-
-    for (let i = 0, n = dest.length; i !== n; ++i) {
-      dest[i] = buffer[offset++];
-    }
-  }, function setValue_array_setNeedsUpdate(buffer, offset) {
-    const dest = this.resolvedProperty;
-
-    for (let i = 0, n = dest.length; i !== n; ++i) {
-      dest[i] = buffer[offset++];
-    }
-
-    this.targetObject.needsUpdate = true;
-  }, function setValue_array_setMatrixWorldNeedsUpdate(buffer, offset) {
-    const dest = this.resolvedProperty;
-
-    for (let i = 0, n = dest.length; i !== n; ++i) {
-      dest[i] = buffer[offset++];
-    }
-
-    this.targetObject.matrixWorldNeedsUpdate = true;
-  }], [// ArrayElement
-  function setValue_arrayElement(buffer, offset) {
-    this.resolvedProperty[this.propertyIndex] = buffer[offset];
-  }, function setValue_arrayElement_setNeedsUpdate(buffer, offset) {
-    this.resolvedProperty[this.propertyIndex] = buffer[offset];
-    this.targetObject.needsUpdate = true;
-  }, function setValue_arrayElement_setMatrixWorldNeedsUpdate(buffer, offset) {
-    this.resolvedProperty[this.propertyIndex] = buffer[offset];
-    this.targetObject.matrixWorldNeedsUpdate = true;
-  }], [// HasToFromArray
-  function setValue_fromArray(buffer, offset) {
-    this.resolvedProperty.fromArray(buffer, offset);
-  }, function setValue_fromArray_setNeedsUpdate(buffer, offset) {
-    this.resolvedProperty.fromArray(buffer, offset);
-    this.targetObject.needsUpdate = true;
-  }, function setValue_fromArray_setMatrixWorldNeedsUpdate(buffer, offset) {
-    this.resolvedProperty.fromArray(buffer, offset);
-    this.targetObject.matrixWorldNeedsUpdate = true;
-  }]],
-  getValue: function getValue_unbound(targetArray, offset) {
-    this.bind();
-    this.getValue(targetArray, offset); // Note: This class uses a State pattern on a per-method basis:
-    // 'bind' sets 'this.getValue' / 'setValue' and shadows the
-    // prototype version of these methods with one that represents
-    // the bound state. When the property is not found, the methods
-    // become no-ops.
-  },
-  setValue: function getValue_unbound(sourceArray, offset) {
-    this.bind();
-    this.setValue(sourceArray, offset);
-  },
-  // create getter / setter pair for a property in the scene graph
-  bind: function () {
-    let targetObject = this.node;
-    const parsedPath = this.parsedPath;
-    const objectName = parsedPath.objectName;
-    const propertyName = parsedPath.propertyName;
-    let propertyIndex = parsedPath.propertyIndex;
-
-    if (!targetObject) {
-      targetObject = PropertyBinding.findNode(this.rootNode, parsedPath.nodeName) || this.rootNode;
-      this.node = targetObject;
-    } // set fail state so we can just 'return' on error
-
-
-    this.getValue = this._getValue_unavailable;
-    this.setValue = this._setValue_unavailable; // ensure there is a value node
-
-    if (!targetObject) {
-      console.error('THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.');
-      return;
-    }
-
-    if (objectName) {
-      let objectIndex = parsedPath.objectIndex; // special cases were we need to reach deeper into the hierarchy to get the face materials....
-
-      switch (objectName) {
-        case 'materials':
-          if (!targetObject.material) {
-            console.error('THREE.PropertyBinding: Can not bind to material as node does not have a material.', this);
-            return;
-          }
-
-          if (!targetObject.material.materials) {
-            console.error('THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this);
-            return;
-          }
-
-          targetObject = targetObject.material.materials;
-          break;
-
-        case 'bones':
-          if (!targetObject.skeleton) {
-            console.error('THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this);
-            return;
-          } // potential future optimization: skip this if propertyIndex is already an integer
-          // and convert the integer string to a true integer.
-
-
-          targetObject = targetObject.skeleton.bones; // support resolving morphTarget names into indices.
-
-          for (let i = 0; i < targetObject.length; i++) {
-            if (targetObject[i].name === objectIndex) {
-              objectIndex = i;
-              break;
-            }
-          }
-
-          break;
-
-        default:
-          if (targetObject[objectName] === undefined) {
-            console.error('THREE.PropertyBinding: Can not bind to objectName of node undefined.', this);
-            return;
-          }
-
-          targetObject = targetObject[objectName];
-      }
-
-      if (objectIndex !== undefined) {
-        if (targetObject[objectIndex] === undefined) {
-          console.error('THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject);
-          return;
-        }
-
-        targetObject = targetObject[objectIndex];
-      }
-    } // resolve property
-
-
-    const nodeProperty = targetObject[propertyName];
-
-    if (nodeProperty === undefined) {
-      const nodeName = parsedPath.nodeName;
-      console.error('THREE.PropertyBinding: Trying to update property for track: ' + nodeName + '.' + propertyName + ' but it wasn\'t found.', targetObject);
-      return;
-    } // determine versioning scheme
-
-
-    let versioning = this.Versioning.None;
-    this.targetObject = targetObject;
-
-    if (targetObject.needsUpdate !== undefined) {
-      // material
-      versioning = this.Versioning.NeedsUpdate;
-    } else if (targetObject.matrixWorldNeedsUpdate !== undefined) {
-      // node transform
-      versioning = this.Versioning.MatrixWorldNeedsUpdate;
-    } // determine how the property gets bound
-
-
-    let bindingType = this.BindingType.Direct;
-
-    if (propertyIndex !== undefined) {
-      // access a sub element of the property array (only primitives are supported right now)
-      if (propertyName === 'morphTargetInfluences') {
-        // potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.
-        // support resolving morphTarget names into indices.
-        if (!targetObject.geometry) {
-          console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this);
-          return;
-        }
-
-        if (targetObject.geometry.isBufferGeometry) {
-          if (!targetObject.geometry.morphAttributes) {
-            console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this);
-            return;
-          }
-
-          if (targetObject.morphTargetDictionary[propertyIndex] !== undefined) {
-            propertyIndex = targetObject.morphTargetDictionary[propertyIndex];
-          }
-        } else {
-          console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.', this);
-          return;
-        }
-      }
-
-      bindingType = this.BindingType.ArrayElement;
-      this.resolvedProperty = nodeProperty;
-      this.propertyIndex = propertyIndex;
-    } else if (nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined) {
-      // must use copy for Object3D.Euler/Quaternion
-      bindingType = this.BindingType.HasFromToArray;
-      this.resolvedProperty = nodeProperty;
-    } else if (Array.isArray(nodeProperty)) {
-      bindingType = this.BindingType.EntireArray;
-      this.resolvedProperty = nodeProperty;
-    } else {
-      this.propertyName = propertyName;
-    } // select getter / setter
-
-
-    this.getValue = this.GetterByBindingType[bindingType];
-    this.setValue = this.SetterByBindingTypeAndVersioning[bindingType][versioning];
-  },
-  unbind: function () {
-    this.node = null; // back to the prototype version of getValue / setValue
-    // note: avoiding to mutate the shape of 'this' via 'delete'
-
-    this.getValue = this._getValue_unbound;
-    this.setValue = this._setValue_unbound;
-  }
-}); // DECLARE ALIAS AFTER assign prototype
-
-Object.assign(PropertyBinding.prototype, {
-  // initial state of these methods that calls 'bind'
-  _getValue_unbound: PropertyBinding.prototype.getValue,
-  _setValue_unbound: PropertyBinding.prototype.setValue
-});
-/**
- *
- * A group of objects that receives a shared animation state.
- *
- * Usage:
- *
- *  - Add objects you would otherwise pass as 'root' to the
- *    constructor or the .clipAction method of AnimationMixer.
- *
- *  - Instead pass this object as 'root'.
- *
- *  - You can also add and remove objects later when the mixer
- *    is running.
- *
- * Note:
- *
- *    Objects of this class appear as one object to the mixer,
- *    so cache control of the individual objects must be done
- *    on the group.
- *
- * Limitation:
- *
- *  - The animated properties must be compatible among the
- *    all objects in the group.
- *
- *  - A single property can either be controlled through a
- *    target group or directly, but not both.
- */
-
-class AnimationObjectGroup {
-  constructor() {
-    this.uuid = MathUtils.generateUUID(); // cached objects followed by the active ones
-
-    this._objects = Array.prototype.slice.call(arguments);
-    this.nCachedObjects_ = 0; // threshold
-    // note: read by PropertyBinding.Composite
-
-    const indices = {};
-    this._indicesByUUID = indices; // for bookkeeping
-
-    for (let i = 0, n = arguments.length; i !== n; ++i) {
-      indices[arguments[i].uuid] = i;
-    }
-
-    this._paths = []; // inside: string
-
-    this._parsedPaths = []; // inside: { we don't care, here }
-
-    this._bindings = []; // inside: Array< PropertyBinding >
-
-    this._bindingsIndicesByPath = {}; // inside: indices in these arrays
-
-    const scope = this;
-    this.stats = {
-      objects: {
-        get total() {
-          return scope._objects.length;
-        },
-
-        get inUse() {
-          return this.total - scope.nCachedObjects_;
-        }
-
-      },
-
-      get bindingsPerObject() {
-        return scope._bindings.length;
-      }
-
-    };
-  }
-
-  add() {
-    const objects = this._objects,
-          indicesByUUID = this._indicesByUUID,
-          paths = this._paths,
-          parsedPaths = this._parsedPaths,
-          bindings = this._bindings,
-          nBindings = bindings.length;
-    let knownObject = undefined,
-        nObjects = objects.length,
-        nCachedObjects = this.nCachedObjects_;
-
-    for (let i = 0, n = arguments.length; i !== n; ++i) {
-      const object = arguments[i],
-            uuid = object.uuid;
-      let index = indicesByUUID[uuid];
-
-      if (index === undefined) {
-        // unknown object -> add it to the ACTIVE region
-        index = nObjects++;
-        indicesByUUID[uuid] = index;
-        objects.push(object); // accounting is done, now do the same for all bindings
-
-        for (let j = 0, m = nBindings; j !== m; ++j) {
-          bindings[j].push(new PropertyBinding(object, paths[j], parsedPaths[j]));
-        }
-      } else if (index < nCachedObjects) {
-        knownObject = objects[index]; // move existing object to the ACTIVE region
-
-        const firstActiveIndex = --nCachedObjects,
-              lastCachedObject = objects[firstActiveIndex];
-        indicesByUUID[lastCachedObject.uuid] = index;
-        objects[index] = lastCachedObject;
-        indicesByUUID[uuid] = firstActiveIndex;
-        objects[firstActiveIndex] = object; // accounting is done, now do the same for all bindings
-
-        for (let j = 0, m = nBindings; j !== m; ++j) {
-          const bindingsForPath = bindings[j],
-                lastCached = bindingsForPath[firstActiveIndex];
-          let binding = bindingsForPath[index];
-          bindingsForPath[index] = lastCached;
-
-          if (binding === undefined) {
-            // since we do not bother to create new bindings
-            // for objects that are cached, the binding may
-            // or may not exist
-            binding = new PropertyBinding(object, paths[j], parsedPaths[j]);
-          }
-
-          bindingsForPath[firstActiveIndex] = binding;
-        }
-      } else if (objects[index] !== knownObject) {
-        console.error('THREE.AnimationObjectGroup: Different objects with the same UUID ' + 'detected. Clean the caches or recreate your infrastructure when reloading scenes.');
-      } // else the object is already where we want it to be
-
-    } // for arguments
-
-
-    this.nCachedObjects_ = nCachedObjects;
-  }
-
-  remove() {
-    const objects = this._objects,
-          indicesByUUID = this._indicesByUUID,
-          bindings = this._bindings,
-          nBindings = bindings.length;
-    let nCachedObjects = this.nCachedObjects_;
-
-    for (let i = 0, n = arguments.length; i !== n; ++i) {
-      const object = arguments[i],
-            uuid = object.uuid,
-            index = indicesByUUID[uuid];
-
-      if (index !== undefined && index >= nCachedObjects) {
-        // move existing object into the CACHED region
-        const lastCachedIndex = nCachedObjects++,
-              firstActiveObject = objects[lastCachedIndex];
-        indicesByUUID[firstActiveObject.uuid] = index;
-        objects[index] = firstActiveObject;
-        indicesByUUID[uuid] = lastCachedIndex;
-        objects[lastCachedIndex] = object; // accounting is done, now do the same for all bindings
-
-        for (let j = 0, m = nBindings; j !== m; ++j) {
-          const bindingsForPath = bindings[j],
-                firstActive = bindingsForPath[lastCachedIndex],
-                binding = bindingsForPath[index];
-          bindingsForPath[index] = firstActive;
-          bindingsForPath[lastCachedIndex] = binding;
-        }
-      }
-    } // for arguments
-
-
-    this.nCachedObjects_ = nCachedObjects;
-  } // remove & forget
-
-
-  uncache() {
-    const objects = this._objects,
-          indicesByUUID = this._indicesByUUID,
-          bindings = this._bindings,
-          nBindings = bindings.length;
-    let nCachedObjects = this.nCachedObjects_,
-        nObjects = objects.length;
-
-    for (let i = 0, n = arguments.length; i !== n; ++i) {
-      const object = arguments[i],
-            uuid = object.uuid,
-            index = indicesByUUID[uuid];
-
-      if (index !== undefined) {
-        delete indicesByUUID[uuid];
-
-        if (index < nCachedObjects) {
-          // object is cached, shrink the CACHED region
-          const firstActiveIndex = --nCachedObjects,
-                lastCachedObject = objects[firstActiveIndex],
-                lastIndex = --nObjects,
-                lastObject = objects[lastIndex]; // last cached object takes this object's place
-
-          indicesByUUID[lastCachedObject.uuid] = index;
-          objects[index] = lastCachedObject; // last object goes to the activated slot and pop
-
-          indicesByUUID[lastObject.uuid] = firstActiveIndex;
-          objects[firstActiveIndex] = lastObject;
-          objects.pop(); // accounting is done, now do the same for all bindings
-
-          for (let j = 0, m = nBindings; j !== m; ++j) {
-            const bindingsForPath = bindings[j],
-                  lastCached = bindingsForPath[firstActiveIndex],
-                  last = bindingsForPath[lastIndex];
-            bindingsForPath[index] = lastCached;
-            bindingsForPath[firstActiveIndex] = last;
-            bindingsForPath.pop();
-          }
-        } else {
-          // object is active, just swap with the last and pop
-          const lastIndex = --nObjects,
-                lastObject = objects[lastIndex];
-
-          if (lastIndex > 0) {
-            indicesByUUID[lastObject.uuid] = index;
-          }
-
-          objects[index] = lastObject;
-          objects.pop(); // accounting is done, now do the same for all bindings
-
-          for (let j = 0, m = nBindings; j !== m; ++j) {
-            const bindingsForPath = bindings[j];
-            bindingsForPath[index] = bindingsForPath[lastIndex];
-            bindingsForPath.pop();
-          }
-        } // cached or active
-
-      } // if object is known
-
-    } // for arguments
-
-
-    this.nCachedObjects_ = nCachedObjects;
-  } // Internal interface used by befriended PropertyBinding.Composite:
-
-
-  subscribe_(path, parsedPath) {
-    // returns an array of bindings for the given path that is changed
-    // according to the contained objects in the group
-    const indicesByPath = this._bindingsIndicesByPath;
-    let index = indicesByPath[path];
-    const bindings = this._bindings;
-    if (index !== undefined) return bindings[index];
-    const paths = this._paths,
-          parsedPaths = this._parsedPaths,
-          objects = this._objects,
-          nObjects = objects.length,
-          nCachedObjects = this.nCachedObjects_,
-          bindingsForPath = new Array(nObjects);
-    index = bindings.length;
-    indicesByPath[path] = index;
-    paths.push(path);
-    parsedPaths.push(parsedPath);
-    bindings.push(bindingsForPath);
-
-    for (let i = nCachedObjects, n = objects.length; i !== n; ++i) {
-      const object = objects[i];
-      bindingsForPath[i] = new PropertyBinding(object, path, parsedPath);
-    }
-
-    return bindingsForPath;
-  }
-
-  unsubscribe_(path) {
-    // tells the group to forget about a property path and no longer
-    // update the array previously obtained with 'subscribe_'
-    const indicesByPath = this._bindingsIndicesByPath,
-          index = indicesByPath[path];
-
-    if (index !== undefined) {
-      const paths = this._paths,
-            parsedPaths = this._parsedPaths,
-            bindings = this._bindings,
-            lastBindingsIndex = bindings.length - 1,
-            lastBindings = bindings[lastBindingsIndex],
-            lastBindingsPath = path[lastBindingsIndex];
-      indicesByPath[lastBindingsPath] = index;
-      bindings[index] = lastBindings;
-      bindings.pop();
-      parsedPaths[index] = parsedPaths[lastBindingsIndex];
-      parsedPaths.pop();
-      paths[index] = paths[lastBindingsIndex];
-      paths.pop();
-    }
-  }
-
-}
-
-exports.AnimationObjectGroup = AnimationObjectGroup;
-AnimationObjectGroup.prototype.isAnimationObjectGroup = true;
-
-class AnimationAction {
-  constructor(mixer, clip, localRoot = null, blendMode = clip.blendMode) {
-    this._mixer = mixer;
-    this._clip = clip;
-    this._localRoot = localRoot;
-    this.blendMode = blendMode;
-    const tracks = clip.tracks,
-          nTracks = tracks.length,
-          interpolants = new Array(nTracks);
-    const interpolantSettings = {
-      endingStart: ZeroCurvatureEnding,
-      endingEnd: ZeroCurvatureEnding
-    };
-
-    for (let i = 0; i !== nTracks; ++i) {
-      const interpolant = tracks[i].createInterpolant(null);
-      interpolants[i] = interpolant;
-      interpolant.settings = interpolantSettings;
-    }
-
-    this._interpolantSettings = interpolantSettings;
-    this._interpolants = interpolants; // bound by the mixer
-    // inside: PropertyMixer (managed by the mixer)
-
-    this._propertyBindings = new Array(nTracks);
-    this._cacheIndex = null; // for the memory manager
-
-    this._byClipCacheIndex = null; // for the memory manager
-
-    this._timeScaleInterpolant = null;
-    this._weightInterpolant = null;
-    this.loop = LoopRepeat;
-    this._loopCount = -1; // global mixer time when the action is to be started
-    // it's set back to 'null' upon start of the action
-
-    this._startTime = null; // scaled local time of the action
-    // gets clamped or wrapped to 0..clip.duration according to loop
-
-    this.time = 0;
-    this.timeScale = 1;
-    this._effectiveTimeScale = 1;
-    this.weight = 1;
-    this._effectiveWeight = 1;
-    this.repetitions = Infinity; // no. of repetitions when looping
-
-    this.paused = false; // true -> zero effective time scale
-
-    this.enabled = true; // false -> zero effective weight
-
-    this.clampWhenFinished = false; // keep feeding the last frame?
-
-    this.zeroSlopeAtStart = true; // for smooth interpolation w/o separate
-
-    this.zeroSlopeAtEnd = true; // clips for start, loop and end
-  } // State & Scheduling
-
-
-  play() {
-    this._mixer._activateAction(this);
-
-    return this;
-  }
-
-  stop() {
-    this._mixer._deactivateAction(this);
-
-    return this.reset();
-  }
-
-  reset() {
-    this.paused = false;
-    this.enabled = true;
-    this.time = 0; // restart clip
-
-    this._loopCount = -1; // forget previous loops
-
-    this._startTime = null; // forget scheduling
-
-    return this.stopFading().stopWarping();
-  }
-
-  isRunning() {
-    return this.enabled && !this.paused && this.timeScale !== 0 && this._startTime === null && this._mixer._isActiveAction(this);
-  } // return true when play has been called
-
-
-  isScheduled() {
-    return this._mixer._isActiveAction(this);
-  }
-
-  startAt(time) {
-    this._startTime = time;
-    return this;
-  }
-
-  setLoop(mode, repetitions) {
-    this.loop = mode;
-    this.repetitions = repetitions;
-    return this;
-  } // Weight
-  // set the weight stopping any scheduled fading
-  // although .enabled = false yields an effective weight of zero, this
-  // method does *not* change .enabled, because it would be confusing
-
-
-  setEffectiveWeight(weight) {
-    this.weight = weight; // note: same logic as when updated at runtime
-
-    this._effectiveWeight = this.enabled ? weight : 0;
-    return this.stopFading();
-  } // return the weight considering fading and .enabled
-
-
-  getEffectiveWeight() {
-    return this._effectiveWeight;
-  }
-
-  fadeIn(duration) {
-    return this._scheduleFading(duration, 0, 1);
-  }
-
-  fadeOut(duration) {
-    return this._scheduleFading(duration, 1, 0);
-  }
-
-  crossFadeFrom(fadeOutAction, duration, warp) {
-    fadeOutAction.fadeOut(duration);
-    this.fadeIn(duration);
-
-    if (warp) {
-      const fadeInDuration = this._clip.duration,
-            fadeOutDuration = fadeOutAction._clip.duration,
-            startEndRatio = fadeOutDuration / fadeInDuration,
-            endStartRatio = fadeInDuration / fadeOutDuration;
-      fadeOutAction.warp(1.0, startEndRatio, duration);
-      this.warp(endStartRatio, 1.0, duration);
-    }
-
-    return this;
-  }
-
-  crossFadeTo(fadeInAction, duration, warp) {
-    return fadeInAction.crossFadeFrom(this, duration, warp);
-  }
-
-  stopFading() {
-    const weightInterpolant = this._weightInterpolant;
-
-    if (weightInterpolant !== null) {
-      this._weightInterpolant = null;
-
-      this._mixer._takeBackControlInterpolant(weightInterpolant);
-    }
-
-    return this;
-  } // Time Scale Control
-  // set the time scale stopping any scheduled warping
-  // although .paused = true yields an effective time scale of zero, this
-  // method does *not* change .paused, because it would be confusing
-
-
-  setEffectiveTimeScale(timeScale) {
-    this.timeScale = timeScale;
-    this._effectiveTimeScale = this.paused ? 0 : timeScale;
-    return this.stopWarping();
-  } // return the time scale considering warping and .paused
-
-
-  getEffectiveTimeScale() {
-    return this._effectiveTimeScale;
-  }
-
-  setDuration(duration) {
-    this.timeScale = this._clip.duration / duration;
-    return this.stopWarping();
-  }
-
-  syncWith(action) {
-    this.time = action.time;
-    this.timeScale = action.timeScale;
-    return this.stopWarping();
-  }
-
-  halt(duration) {
-    return this.warp(this._effectiveTimeScale, 0, duration);
-  }
-
-  warp(startTimeScale, endTimeScale, duration) {
-    const mixer = this._mixer,
-          now = mixer.time,
-          timeScale = this.timeScale;
-    let interpolant = this._timeScaleInterpolant;
-
-    if (interpolant === null) {
-      interpolant = mixer._lendControlInterpolant();
-      this._timeScaleInterpolant = interpolant;
-    }
-
-    const times = interpolant.parameterPositions,
-          values = interpolant.sampleValues;
-    times[0] = now;
-    times[1] = now + duration;
-    values[0] = startTimeScale / timeScale;
-    values[1] = endTimeScale / timeScale;
-    return this;
-  }
-
-  stopWarping() {
-    const timeScaleInterpolant = this._timeScaleInterpolant;
-
-    if (timeScaleInterpolant !== null) {
-      this._timeScaleInterpolant = null;
-
-      this._mixer._takeBackControlInterpolant(timeScaleInterpolant);
-    }
-
-    return this;
-  } // Object Accessors
-
-
-  getMixer() {
-    return this._mixer;
-  }
-
-  getClip() {
-    return this._clip;
-  }
-
-  getRoot() {
-    return this._localRoot || this._mixer._root;
-  } // Interna
-
-
-  _update(time, deltaTime, timeDirection, accuIndex) {
-    // called by the mixer
-    if (!this.enabled) {
-      // call ._updateWeight() to update ._effectiveWeight
-      this._updateWeight(time);
-
-      return;
-    }
-
-    const startTime = this._startTime;
-
-    if (startTime !== null) {
-      // check for scheduled start of action
-      const timeRunning = (time - startTime) * timeDirection;
-
-      if (timeRunning < 0 || timeDirection === 0) {
-        return; // yet to come / don't decide when delta = 0
-      } // start
-
-
-      this._startTime = null; // unschedule
-
-      deltaTime = timeDirection * timeRunning;
-    } // apply time scale and advance time
-
-
-    deltaTime *= this._updateTimeScale(time);
-
-    const clipTime = this._updateTime(deltaTime); // note: _updateTime may disable the action resulting in
-    // an effective weight of 0
-
-
-    const weight = this._updateWeight(time);
-
-    if (weight > 0) {
-      const interpolants = this._interpolants;
-      const propertyMixers = this._propertyBindings;
-
-      switch (this.blendMode) {
-        case AdditiveAnimationBlendMode:
-          for (let j = 0, m = interpolants.length; j !== m; ++j) {
-            interpolants[j].evaluate(clipTime);
-            propertyMixers[j].accumulateAdditive(weight);
-          }
-
-          break;
-
-        case NormalAnimationBlendMode:
-        default:
-          for (let j = 0, m = interpolants.length; j !== m; ++j) {
-            interpolants[j].evaluate(clipTime);
-            propertyMixers[j].accumulate(accuIndex, weight);
-          }
-
-      }
-    }
-  }
-
-  _updateWeight(time) {
-    let weight = 0;
-
-    if (this.enabled) {
-      weight = this.weight;
-      const interpolant = this._weightInterpolant;
-
-      if (interpolant !== null) {
-        const interpolantValue = interpolant.evaluate(time)[0];
-        weight *= interpolantValue;
-
-        if (time > interpolant.parameterPositions[1]) {
-          this.stopFading();
-
-          if (interpolantValue === 0) {
-            // faded out, disable
-            this.enabled = false;
-          }
-        }
-      }
-    }
-
-    this._effectiveWeight = weight;
-    return weight;
-  }
-
-  _updateTimeScale(time) {
-    let timeScale = 0;
-
-    if (!this.paused) {
-      timeScale = this.timeScale;
-      const interpolant = this._timeScaleInterpolant;
-
-      if (interpolant !== null) {
-        const interpolantValue = interpolant.evaluate(time)[0];
-        timeScale *= interpolantValue;
-
-        if (time > interpolant.parameterPositions[1]) {
-          this.stopWarping();
-
-          if (timeScale === 0) {
-            // motion has halted, pause
-            this.paused = true;
-          } else {
-            // warp done - apply final time scale
-            this.timeScale = timeScale;
-          }
-        }
-      }
-    }
-
-    this._effectiveTimeScale = timeScale;
-    return timeScale;
-  }
-
-  _updateTime(deltaTime) {
-    const duration = this._clip.duration;
-    const loop = this.loop;
-    let time = this.time + deltaTime;
-    let loopCount = this._loopCount;
-    const pingPong = loop === LoopPingPong;
-
-    if (deltaTime === 0) {
-      if (loopCount === -1) return time;
-      return pingPong && (loopCount & 1) === 1 ? duration - time : time;
-    }
-
-    if (loop === LoopOnce) {
-      if (loopCount === -1) {
-        // just started
-        this._loopCount = 0;
-
-        this._setEndings(true, true, false);
-      }
-
-      handle_stop: {
-        if (time >= duration) {
-          time = duration;
-        } else if (time < 0) {
-          time = 0;
-        } else {
-          this.time = time;
-          break handle_stop;
-        }
-
-        if (this.clampWhenFinished) this.paused = true;else this.enabled = false;
-        this.time = time;
-
-        this._mixer.dispatchEvent({
-          type: 'finished',
-          action: this,
-          direction: deltaTime < 0 ? -1 : 1
-        });
-      }
-    } else {
-      // repetitive Repeat or PingPong
-      if (loopCount === -1) {
-        // just started
-        if (deltaTime >= 0) {
-          loopCount = 0;
-
-          this._setEndings(true, this.repetitions === 0, pingPong);
-        } else {
-          // when looping in reverse direction, the initial
-          // transition through zero counts as a repetition,
-          // so leave loopCount at -1
-          this._setEndings(this.repetitions === 0, true, pingPong);
-        }
-      }
-
-      if (time >= duration || time < 0) {
-        // wrap around
-        const loopDelta = Math.floor(time / duration); // signed
-
-        time -= duration * loopDelta;
-        loopCount += Math.abs(loopDelta);
-        const pending = this.repetitions - loopCount;
-
-        if (pending <= 0) {
-          // have to stop (switch state, clamp time, fire event)
-          if (this.clampWhenFinished) this.paused = true;else this.enabled = false;
-          time = deltaTime > 0 ? duration : 0;
-          this.time = time;
-
-          this._mixer.dispatchEvent({
-            type: 'finished',
-            action: this,
-            direction: deltaTime > 0 ? 1 : -1
-          });
-        } else {
-          // keep running
-          if (pending === 1) {
-            // entering the last round
-            const atStart = deltaTime < 0;
-
-            this._setEndings(atStart, !atStart, pingPong);
-          } else {
-            this._setEndings(false, false, pingPong);
-          }
-
-          this._loopCount = loopCount;
-          this.time = time;
-
-          this._mixer.dispatchEvent({
-            type: 'loop',
-            action: this,
-            loopDelta: loopDelta
-          });
-        }
-      } else {
-        this.time = time;
-      }
-
-      if (pingPong && (loopCount & 1) === 1) {
-        // invert time for the "pong round"
-        return duration - time;
-      }
-    }
-
-    return time;
-  }
-
-  _setEndings(atStart, atEnd, pingPong) {
-    const settings = this._interpolantSettings;
-
-    if (pingPong) {
-      settings.endingStart = ZeroSlopeEnding;
-      settings.endingEnd = ZeroSlopeEnding;
-    } else {
-      // assuming for LoopOnce atStart == atEnd == true
-      if (atStart) {
-        settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;
-      } else {
-        settings.endingStart = WrapAroundEnding;
-      }
-
-      if (atEnd) {
-        settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;
-      } else {
-        settings.endingEnd = WrapAroundEnding;
-      }
-    }
-  }
-
-  _scheduleFading(duration, weightNow, weightThen) {
-    const mixer = this._mixer,
-          now = mixer.time;
-    let interpolant = this._weightInterpolant;
-
-    if (interpolant === null) {
-      interpolant = mixer._lendControlInterpolant();
-      this._weightInterpolant = interpolant;
-    }
-
-    const times = interpolant.parameterPositions,
-          values = interpolant.sampleValues;
-    times[0] = now;
-    values[0] = weightNow;
-    times[1] = now + duration;
-    values[1] = weightThen;
-    return this;
-  }
-
-}
-
-class AnimationMixer extends EventDispatcher {
-  constructor(root) {
-    super();
-    this._root = root;
-
-    this._initMemoryManager();
-
-    this._accuIndex = 0;
-    this.time = 0;
-    this.timeScale = 1.0;
-  }
-
-  _bindAction(action, prototypeAction) {
-    const root = action._localRoot || this._root,
-          tracks = action._clip.tracks,
-          nTracks = tracks.length,
-          bindings = action._propertyBindings,
-          interpolants = action._interpolants,
-          rootUuid = root.uuid,
-          bindingsByRoot = this._bindingsByRootAndName;
-    let bindingsByName = bindingsByRoot[rootUuid];
-
-    if (bindingsByName === undefined) {
-      bindingsByName = {};
-      bindingsByRoot[rootUuid] = bindingsByName;
-    }
-
-    for (let i = 0; i !== nTracks; ++i) {
-      const track = tracks[i],
-            trackName = track.name;
-      let binding = bindingsByName[trackName];
-
-      if (binding !== undefined) {
-        bindings[i] = binding;
-      } else {
-        binding = bindings[i];
-
-        if (binding !== undefined) {
-          // existing binding, make sure the cache knows
-          if (binding._cacheIndex === null) {
-            ++binding.referenceCount;
-
-            this._addInactiveBinding(binding, rootUuid, trackName);
-          }
-
-          continue;
-        }
-
-        const path = prototypeAction && prototypeAction._propertyBindings[i].binding.parsedPath;
-        binding = new PropertyMixer(PropertyBinding.create(root, trackName, path), track.ValueTypeName, track.getValueSize());
-        ++binding.referenceCount;
-
-        this._addInactiveBinding(binding, rootUuid, trackName);
-
-        bindings[i] = binding;
-      }
-
-      interpolants[i].resultBuffer = binding.buffer;
-    }
-  }
-
-  _activateAction(action) {
-    if (!this._isActiveAction(action)) {
-      if (action._cacheIndex === null) {
-        // this action has been forgotten by the cache, but the user
-        // appears to be still using it -> rebind
-        const rootUuid = (action._localRoot || this._root).uuid,
-              clipUuid = action._clip.uuid,
-              actionsForClip = this._actionsByClip[clipUuid];
-
-        this._bindAction(action, actionsForClip && actionsForClip.knownActions[0]);
-
-        this._addInactiveAction(action, clipUuid, rootUuid);
-      }
-
-      const bindings = action._propertyBindings; // increment reference counts / sort out state
-
-      for (let i = 0, n = bindings.length; i !== n; ++i) {
-        const binding = bindings[i];
-
-        if (binding.useCount++ === 0) {
-          this._lendBinding(binding);
-
-          binding.saveOriginalState();
-        }
-      }
-
-      this._lendAction(action);
-    }
-  }
-
-  _deactivateAction(action) {
-    if (this._isActiveAction(action)) {
-      const bindings = action._propertyBindings; // decrement reference counts / sort out state
-
-      for (let i = 0, n = bindings.length; i !== n; ++i) {
-        const binding = bindings[i];
-
-        if (--binding.useCount === 0) {
-          binding.restoreOriginalState();
-
-          this._takeBackBinding(binding);
-        }
-      }
-
-      this._takeBackAction(action);
-    }
-  } // Memory manager
-
-
-  _initMemoryManager() {
-    this._actions = []; // 'nActiveActions' followed by inactive ones
-
-    this._nActiveActions = 0;
-    this._actionsByClip = {}; // inside:
-    // {
-    // 	knownActions: Array< AnimationAction > - used as prototypes
-    // 	actionByRoot: AnimationAction - lookup
-    // }
-
-    this._bindings = []; // 'nActiveBindings' followed by inactive ones
-
-    this._nActiveBindings = 0;
-    this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >
-
-    this._controlInterpolants = []; // same game as above
-
-    this._nActiveControlInterpolants = 0;
-    const scope = this;
-    this.stats = {
-      actions: {
-        get total() {
-          return scope._actions.length;
-        },
-
-        get inUse() {
-          return scope._nActiveActions;
-        }
-
-      },
-      bindings: {
-        get total() {
-          return scope._bindings.length;
-        },
-
-        get inUse() {
-          return scope._nActiveBindings;
-        }
-
-      },
-      controlInterpolants: {
-        get total() {
-          return scope._controlInterpolants.length;
-        },
-
-        get inUse() {
-          return scope._nActiveControlInterpolants;
-        }
-
-      }
-    };
-  } // Memory management for AnimationAction objects
-
-
-  _isActiveAction(action) {
-    const index = action._cacheIndex;
-    return index !== null && index < this._nActiveActions;
-  }
-
-  _addInactiveAction(action, clipUuid, rootUuid) {
-    const actions = this._actions,
-          actionsByClip = this._actionsByClip;
-    let actionsForClip = actionsByClip[clipUuid];
-
-    if (actionsForClip === undefined) {
-      actionsForClip = {
-        knownActions: [action],
-        actionByRoot: {}
-      };
-      action._byClipCacheIndex = 0;
-      actionsByClip[clipUuid] = actionsForClip;
-    } else {
-      const knownActions = actionsForClip.knownActions;
-      action._byClipCacheIndex = knownActions.length;
-      knownActions.push(action);
-    }
-
-    action._cacheIndex = actions.length;
-    actions.push(action);
-    actionsForClip.actionByRoot[rootUuid] = action;
-  }
-
-  _removeInactiveAction(action) {
-    const actions = this._actions,
-          lastInactiveAction = actions[actions.length - 1],
-          cacheIndex = action._cacheIndex;
-    lastInactiveAction._cacheIndex = cacheIndex;
-    actions[cacheIndex] = lastInactiveAction;
-    actions.pop();
-    action._cacheIndex = null;
-    const clipUuid = action._clip.uuid,
-          actionsByClip = this._actionsByClip,
-          actionsForClip = actionsByClip[clipUuid],
-          knownActionsForClip = actionsForClip.knownActions,
-          lastKnownAction = knownActionsForClip[knownActionsForClip.length - 1],
-          byClipCacheIndex = action._byClipCacheIndex;
-    lastKnownAction._byClipCacheIndex = byClipCacheIndex;
-    knownActionsForClip[byClipCacheIndex] = lastKnownAction;
-    knownActionsForClip.pop();
-    action._byClipCacheIndex = null;
-    const actionByRoot = actionsForClip.actionByRoot,
-          rootUuid = (action._localRoot || this._root).uuid;
-    delete actionByRoot[rootUuid];
-
-    if (knownActionsForClip.length === 0) {
-      delete actionsByClip[clipUuid];
-    }
-
-    this._removeInactiveBindingsForAction(action);
-  }
-
-  _removeInactiveBindingsForAction(action) {
-    const bindings = action._propertyBindings;
-
-    for (let i = 0, n = bindings.length; i !== n; ++i) {
-      const binding = bindings[i];
-
-      if (--binding.referenceCount === 0) {
-        this._removeInactiveBinding(binding);
-      }
-    }
-  }
-
-  _lendAction(action) {
-    // [ active actions |  inactive actions  ]
-    // [  active actions >| inactive actions ]
-    //                 s        a
-    //                  <-swap->
-    //                 a        s
-    const actions = this._actions,
-          prevIndex = action._cacheIndex,
-          lastActiveIndex = this._nActiveActions++,
-          firstInactiveAction = actions[lastActiveIndex];
-    action._cacheIndex = lastActiveIndex;
-    actions[lastActiveIndex] = action;
-    firstInactiveAction._cacheIndex = prevIndex;
-    actions[prevIndex] = firstInactiveAction;
-  }
-
-  _takeBackAction(action) {
-    // [  active actions  | inactive actions ]
-    // [ active actions |< inactive actions  ]
-    //        a        s
-    //         <-swap->
-    //        s        a
-    const actions = this._actions,
-          prevIndex = action._cacheIndex,
-          firstInactiveIndex = --this._nActiveActions,
-          lastActiveAction = actions[firstInactiveIndex];
-    action._cacheIndex = firstInactiveIndex;
-    actions[firstInactiveIndex] = action;
-    lastActiveAction._cacheIndex = prevIndex;
-    actions[prevIndex] = lastActiveAction;
-  } // Memory management for PropertyMixer objects
-
-
-  _addInactiveBinding(binding, rootUuid, trackName) {
-    const bindingsByRoot = this._bindingsByRootAndName,
-          bindings = this._bindings;
-    let bindingByName = bindingsByRoot[rootUuid];
-
-    if (bindingByName === undefined) {
-      bindingByName = {};
-      bindingsByRoot[rootUuid] = bindingByName;
-    }
-
-    bindingByName[trackName] = binding;
-    binding._cacheIndex = bindings.length;
-    bindings.push(binding);
-  }
-
-  _removeInactiveBinding(binding) {
-    const bindings = this._bindings,
-          propBinding = binding.binding,
-          rootUuid = propBinding.rootNode.uuid,
-          trackName = propBinding.path,
-          bindingsByRoot = this._bindingsByRootAndName,
-          bindingByName = bindingsByRoot[rootUuid],
-          lastInactiveBinding = bindings[bindings.length - 1],
-          cacheIndex = binding._cacheIndex;
-    lastInactiveBinding._cacheIndex = cacheIndex;
-    bindings[cacheIndex] = lastInactiveBinding;
-    bindings.pop();
-    delete bindingByName[trackName];
-
-    if (Object.keys(bindingByName).length === 0) {
-      delete bindingsByRoot[rootUuid];
-    }
-  }
-
-  _lendBinding(binding) {
-    const bindings = this._bindings,
-          prevIndex = binding._cacheIndex,
-          lastActiveIndex = this._nActiveBindings++,
-          firstInactiveBinding = bindings[lastActiveIndex];
-    binding._cacheIndex = lastActiveIndex;
-    bindings[lastActiveIndex] = binding;
-    firstInactiveBinding._cacheIndex = prevIndex;
-    bindings[prevIndex] = firstInactiveBinding;
-  }
-
-  _takeBackBinding(binding) {
-    const bindings = this._bindings,
-          prevIndex = binding._cacheIndex,
-          firstInactiveIndex = --this._nActiveBindings,
-          lastActiveBinding = bindings[firstInactiveIndex];
-    binding._cacheIndex = firstInactiveIndex;
-    bindings[firstInactiveIndex] = binding;
-    lastActiveBinding._cacheIndex = prevIndex;
-    bindings[prevIndex] = lastActiveBinding;
-  } // Memory management of Interpolants for weight and time scale
-
-
-  _lendControlInterpolant() {
-    const interpolants = this._controlInterpolants,
-          lastActiveIndex = this._nActiveControlInterpolants++;
-    let interpolant = interpolants[lastActiveIndex];
-
-    if (interpolant === undefined) {
-      interpolant = new LinearInterpolant(new Float32Array(2), new Float32Array(2), 1, this._controlInterpolantsResultBuffer);
-      interpolant.__cacheIndex = lastActiveIndex;
-      interpolants[lastActiveIndex] = interpolant;
-    }
-
-    return interpolant;
-  }
-
-  _takeBackControlInterpolant(interpolant) {
-    const interpolants = this._controlInterpolants,
-          prevIndex = interpolant.__cacheIndex,
-          firstInactiveIndex = --this._nActiveControlInterpolants,
-          lastActiveInterpolant = interpolants[firstInactiveIndex];
-    interpolant.__cacheIndex = firstInactiveIndex;
-    interpolants[firstInactiveIndex] = interpolant;
-    lastActiveInterpolant.__cacheIndex = prevIndex;
-    interpolants[prevIndex] = lastActiveInterpolant;
-  } // return an action for a clip optionally using a custom root target
-  // object (this method allocates a lot of dynamic memory in case a
-  // previously unknown clip/root combination is specified)
-
-
-  clipAction(clip, optionalRoot, blendMode) {
-    const root = optionalRoot || this._root,
-          rootUuid = root.uuid;
-    let clipObject = typeof clip === 'string' ? AnimationClip.findByName(root, clip) : clip;
-    const clipUuid = clipObject !== null ? clipObject.uuid : clip;
-    const actionsForClip = this._actionsByClip[clipUuid];
-    let prototypeAction = null;
-
-    if (blendMode === undefined) {
-      if (clipObject !== null) {
-        blendMode = clipObject.blendMode;
-      } else {
-        blendMode = NormalAnimationBlendMode;
-      }
-    }
-
-    if (actionsForClip !== undefined) {
-      const existingAction = actionsForClip.actionByRoot[rootUuid];
-
-      if (existingAction !== undefined && existingAction.blendMode === blendMode) {
-        return existingAction;
-      } // we know the clip, so we don't have to parse all
-      // the bindings again but can just copy
-
-
-      prototypeAction = actionsForClip.knownActions[0]; // also, take the clip from the prototype action
-
-      if (clipObject === null) clipObject = prototypeAction._clip;
-    } // clip must be known when specified via string
-
-
-    if (clipObject === null) return null; // allocate all resources required to run it
-
-    const newAction = new AnimationAction(this, clipObject, optionalRoot, blendMode);
-
-    this._bindAction(newAction, prototypeAction); // and make the action known to the memory manager
-
-
-    this._addInactiveAction(newAction, clipUuid, rootUuid);
-
-    return newAction;
-  } // get an existing action
-
-
-  existingAction(clip, optionalRoot) {
-    const root = optionalRoot || this._root,
-          rootUuid = root.uuid,
-          clipObject = typeof clip === 'string' ? AnimationClip.findByName(root, clip) : clip,
-          clipUuid = clipObject ? clipObject.uuid : clip,
-          actionsForClip = this._actionsByClip[clipUuid];
-
-    if (actionsForClip !== undefined) {
-      return actionsForClip.actionByRoot[rootUuid] || null;
-    }
-
-    return null;
-  } // deactivates all previously scheduled actions
-
-
-  stopAllAction() {
-    const actions = this._actions,
-          nActions = this._nActiveActions;
-
-    for (let i = nActions - 1; i >= 0; --i) {
-      actions[i].stop();
-    }
-
-    return this;
-  } // advance the time and update apply the animation
-
-
-  update(deltaTime) {
-    deltaTime *= this.timeScale;
-    const actions = this._actions,
-          nActions = this._nActiveActions,
-          time = this.time += deltaTime,
-          timeDirection = Math.sign(deltaTime),
-          accuIndex = this._accuIndex ^= 1; // run active actions
-
-    for (let i = 0; i !== nActions; ++i) {
-      const action = actions[i];
-
-      action._update(time, deltaTime, timeDirection, accuIndex);
-    } // update scene graph
-
-
-    const bindings = this._bindings,
-          nBindings = this._nActiveBindings;
-
-    for (let i = 0; i !== nBindings; ++i) {
-      bindings[i].apply(accuIndex);
-    }
-
-    return this;
-  } // Allows you to seek to a specific time in an animation.
-
-
-  setTime(timeInSeconds) {
-    this.time = 0; // Zero out time attribute for AnimationMixer object;
-
-    for (let i = 0; i < this._actions.length; i++) {
-      this._actions[i].time = 0; // Zero out time attribute for all associated AnimationAction objects.
-    }
-
-    return this.update(timeInSeconds); // Update used to set exact time. Returns "this" AnimationMixer object.
-  } // return this mixer's root target object
-
-
-  getRoot() {
-    return this._root;
-  } // free all resources specific to a particular clip
-
-
-  uncacheClip(clip) {
-    const actions = this._actions,
-          clipUuid = clip.uuid,
-          actionsByClip = this._actionsByClip,
-          actionsForClip = actionsByClip[clipUuid];
-
-    if (actionsForClip !== undefined) {
-      // note: just calling _removeInactiveAction would mess up the
-      // iteration state and also require updating the state we can
-      // just throw away
-      const actionsToRemove = actionsForClip.knownActions;
-
-      for (let i = 0, n = actionsToRemove.length; i !== n; ++i) {
-        const action = actionsToRemove[i];
-
-        this._deactivateAction(action);
-
-        const cacheIndex = action._cacheIndex,
-              lastInactiveAction = actions[actions.length - 1];
-        action._cacheIndex = null;
-        action._byClipCacheIndex = null;
-        lastInactiveAction._cacheIndex = cacheIndex;
-        actions[cacheIndex] = lastInactiveAction;
-        actions.pop();
-
-        this._removeInactiveBindingsForAction(action);
-      }
-
-      delete actionsByClip[clipUuid];
-    }
-  } // free all resources specific to a particular root target object
-
-
-  uncacheRoot(root) {
-    const rootUuid = root.uuid,
-          actionsByClip = this._actionsByClip;
-
-    for (const clipUuid in actionsByClip) {
-      const actionByRoot = actionsByClip[clipUuid].actionByRoot,
-            action = actionByRoot[rootUuid];
-
-      if (action !== undefined) {
-        this._deactivateAction(action);
-
-        this._removeInactiveAction(action);
-      }
-    }
-
-    const bindingsByRoot = this._bindingsByRootAndName,
-          bindingByName = bindingsByRoot[rootUuid];
-
-    if (bindingByName !== undefined) {
-      for (const trackName in bindingByName) {
-        const binding = bindingByName[trackName];
-        binding.restoreOriginalState();
-
-        this._removeInactiveBinding(binding);
-      }
-    }
-  } // remove a targeted clip from the cache
-
-
-  uncacheAction(clip, optionalRoot) {
-    const action = this.existingAction(clip, optionalRoot);
-
-    if (action !== null) {
-      this._deactivateAction(action);
-
-      this._removeInactiveAction(action);
-    }
-  }
-
-}
-
-exports.AnimationMixer = AnimationMixer;
-AnimationMixer.prototype._controlInterpolantsResultBuffer = new Float32Array(1);
-
-class Uniform {
-  constructor(value) {
-    if (typeof value === 'string') {
-      console.warn('THREE.Uniform: Type parameter is no longer needed.');
-      value = arguments[1];
-    }
-
-    this.value = value;
-  }
-
-  clone() {
-    return new Uniform(this.value.clone === undefined ? this.value : this.value.clone());
-  }
-
-}
-
-exports.Uniform = Uniform;
-
-function InstancedInterleavedBuffer(array, stride, meshPerAttribute) {
-  InterleavedBuffer.call(this, array, stride);
-  this.meshPerAttribute = meshPerAttribute || 1;
-}
-
-InstancedInterleavedBuffer.prototype = Object.assign(Object.create(InterleavedBuffer.prototype), {
-  constructor: InstancedInterleavedBuffer,
-  isInstancedInterleavedBuffer: true,
-  copy: function (source) {
-    InterleavedBuffer.prototype.copy.call(this, source);
-    this.meshPerAttribute = source.meshPerAttribute;
-    return this;
-  },
-  clone: function (data) {
-    const ib = InterleavedBuffer.prototype.clone.call(this, data);
-    ib.meshPerAttribute = this.meshPerAttribute;
-    return ib;
-  },
-  toJSON: function (data) {
-    const json = InterleavedBuffer.prototype.toJSON.call(this, data);
-    json.isInstancedInterleavedBuffer = true;
-    json.meshPerAttribute = this.meshPerAttribute;
-    return json;
-  }
-});
-
-function GLBufferAttribute(buffer, type, itemSize, elementSize, count) {
-  this.buffer = buffer;
-  this.type = type;
-  this.itemSize = itemSize;
-  this.elementSize = elementSize;
-  this.count = count;
-  this.version = 0;
-}
-
-Object.defineProperty(GLBufferAttribute.prototype, 'needsUpdate', {
-  set: function (value) {
-    if (value === true) this.version++;
-  }
-});
-Object.assign(GLBufferAttribute.prototype, {
-  isGLBufferAttribute: true,
-  setBuffer: function (buffer) {
-    this.buffer = buffer;
-    return this;
-  },
-  setType: function (type, elementSize) {
-    this.type = type;
-    this.elementSize = elementSize;
-    return this;
-  },
-  setItemSize: function (itemSize) {
-    this.itemSize = itemSize;
-    return this;
-  },
-  setCount: function (count) {
-    this.count = count;
-    return this;
-  }
-});
-
-function Raycaster(origin, direction, near = 0, far = Infinity) {
-  this.ray = new Ray(origin, direction); // direction is assumed to be normalized (for accurate distance calculations)
-
-  this.near = near;
-  this.far = far;
-  this.camera = null;
-  this.layers = new Layers();
-  this.params = {
-    Mesh: {},
-    Line: {
-      threshold: 1
-    },
-    LOD: {},
-    Points: {
-      threshold: 1
-    },
-    Sprite: {}
-  };
-  Object.defineProperties(this.params, {
-    PointCloud: {
-      get: function () {
-        console.warn('THREE.Raycaster: params.PointCloud has been renamed to params.Points.');
-        return this.Points;
-      }
-    }
-  });
-}
-
-function ascSort(a, b) {
-  return a.distance - b.distance;
-}
-
-function intersectObject(object, raycaster, intersects, recursive) {
-  if (object.layers.test(raycaster.layers)) {
-    object.raycast(raycaster, intersects);
-  }
-
-  if (recursive === true) {
-    const children = object.children;
-
-    for (let i = 0, l = children.length; i < l; i++) {
-      intersectObject(children[i], raycaster, intersects, true);
-    }
-  }
-}
-
-Object.assign(Raycaster.prototype, {
-  set: function (origin, direction) {
-    // direction is assumed to be normalized (for accurate distance calculations)
-    this.ray.set(origin, direction);
-  },
-  setFromCamera: function (coords, camera) {
-    if (camera && camera.isPerspectiveCamera) {
-      this.ray.origin.setFromMatrixPosition(camera.matrixWorld);
-      this.ray.direction.set(coords.x, coords.y, 0.5).unproject(camera).sub(this.ray.origin).normalize();
-      this.camera = camera;
-    } else if (camera && camera.isOrthographicCamera) {
-      this.ray.origin.set(coords.x, coords.y, (camera.near + camera.far) / (camera.near - camera.far)).unproject(camera); // set origin in plane of camera
-
-      this.ray.direction.set(0, 0, -1).transformDirection(camera.matrixWorld);
-      this.camera = camera;
-    } else {
-      console.error('THREE.Raycaster: Unsupported camera type: ' + camera.type);
-    }
-  },
-  intersectObject: function (object, recursive = false, intersects = []) {
-    intersectObject(object, this, intersects, recursive);
-    intersects.sort(ascSort);
-    return intersects;
-  },
-  intersectObjects: function (objects, recursive = false, intersects = []) {
-    for (let i = 0, l = objects.length; i < l; i++) {
-      intersectObject(objects[i], this, intersects, recursive);
-    }
-
-    intersects.sort(ascSort);
-    return intersects;
-  }
-});
-/**
- * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
- *
- * The polar angle (phi) is measured from the positive y-axis. The positive y-axis is up.
- * The azimuthal angle (theta) is measured from the positive z-axis.
- */
-
-class Spherical {
-  constructor(radius = 1, phi = 0, theta = 0) {
-    this.radius = radius;
-    this.phi = phi; // polar angle
-
-    this.theta = theta; // azimuthal angle
-
-    return this;
-  }
-
-  set(radius, phi, theta) {
-    this.radius = radius;
-    this.phi = phi;
-    this.theta = theta;
-    return this;
-  }
-
-  copy(other) {
-    this.radius = other.radius;
-    this.phi = other.phi;
-    this.theta = other.theta;
-    return this;
-  } // restrict phi to be betwee EPS and PI-EPS
-
-
-  makeSafe() {
-    const EPS = 0.000001;
-    this.phi = Math.max(EPS, Math.min(Math.PI - EPS, this.phi));
-    return this;
-  }
-
-  setFromVector3(v) {
-    return this.setFromCartesianCoords(v.x, v.y, v.z);
-  }
-
-  setFromCartesianCoords(x, y, z) {
-    this.radius = Math.sqrt(x * x + y * y + z * z);
-
-    if (this.radius === 0) {
-      this.theta = 0;
-      this.phi = 0;
-    } else {
-      this.theta = Math.atan2(x, z);
-      this.phi = Math.acos(MathUtils.clamp(y / this.radius, -1, 1));
-    }
-
-    return this;
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-}
-/**
- * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
- */
-
-
-exports.Spherical = Spherical;
-
-class Cylindrical {
-  constructor(radius = 1, theta = 0, y = 0) {
-    this.radius = radius; // distance from the origin to a point in the x-z plane
-
-    this.theta = theta; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
-
-    this.y = y; // height above the x-z plane
-
-    return this;
-  }
-
-  set(radius, theta, y) {
-    this.radius = radius;
-    this.theta = theta;
-    this.y = y;
-    return this;
-  }
-
-  copy(other) {
-    this.radius = other.radius;
-    this.theta = other.theta;
-    this.y = other.y;
-    return this;
-  }
-
-  setFromVector3(v) {
-    return this.setFromCartesianCoords(v.x, v.y, v.z);
-  }
-
-  setFromCartesianCoords(x, y, z) {
-    this.radius = Math.sqrt(x * x + z * z);
-    this.theta = Math.atan2(x, z);
-    this.y = y;
-    return this;
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-}
-
-exports.Cylindrical = Cylindrical;
-
-const _vector$8 =
-/*@__PURE__*/
-new Vector2();
-
-class Box2 {
-  constructor(min = new Vector2(+Infinity, +Infinity), max = new Vector2(-Infinity, -Infinity)) {
-    this.min = min;
-    this.max = max;
-  }
-
-  set(min, max) {
-    this.min.copy(min);
-    this.max.copy(max);
-    return this;
-  }
-
-  setFromPoints(points) {
-    this.makeEmpty();
-
-    for (let i = 0, il = points.length; i < il; i++) {
-      this.expandByPoint(points[i]);
-    }
-
-    return this;
-  }
-
-  setFromCenterAndSize(center, size) {
-    const halfSize = _vector$8.copy(size).multiplyScalar(0.5);
-
-    this.min.copy(center).sub(halfSize);
-    this.max.copy(center).add(halfSize);
-    return this;
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-  copy(box) {
-    this.min.copy(box.min);
-    this.max.copy(box.max);
-    return this;
-  }
-
-  makeEmpty() {
-    this.min.x = this.min.y = +Infinity;
-    this.max.x = this.max.y = -Infinity;
-    return this;
-  }
-
-  isEmpty() {
-    // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
-    return this.max.x < this.min.x || this.max.y < this.min.y;
-  }
-
-  getCenter(target) {
-    if (target === undefined) {
-      console.warn('THREE.Box2: .getCenter() target is now required');
-      target = new Vector2();
-    }
-
-    return this.isEmpty() ? target.set(0, 0) : target.addVectors(this.min, this.max).multiplyScalar(0.5);
-  }
-
-  getSize(target) {
-    if (target === undefined) {
-      console.warn('THREE.Box2: .getSize() target is now required');
-      target = new Vector2();
-    }
-
-    return this.isEmpty() ? target.set(0, 0) : target.subVectors(this.max, this.min);
-  }
-
-  expandByPoint(point) {
-    this.min.min(point);
-    this.max.max(point);
-    return this;
-  }
-
-  expandByVector(vector) {
-    this.min.sub(vector);
-    this.max.add(vector);
-    return this;
-  }
-
-  expandByScalar(scalar) {
-    this.min.addScalar(-scalar);
-    this.max.addScalar(scalar);
-    return this;
-  }
-
-  containsPoint(point) {
-    return point.x < this.min.x || point.x > this.max.x || point.y < this.min.y || point.y > this.max.y ? false : true;
-  }
-
-  containsBox(box) {
-    return this.min.x <= box.min.x && box.max.x <= this.max.x && this.min.y <= box.min.y && box.max.y <= this.max.y;
-  }
-
-  getParameter(point, target) {
-    // This can potentially have a divide by zero if the box
-    // has a size dimension of 0.
-    if (target === undefined) {
-      console.warn('THREE.Box2: .getParameter() target is now required');
-      target = new Vector2();
-    }
-
-    return target.set((point.x - this.min.x) / (this.max.x - this.min.x), (point.y - this.min.y) / (this.max.y - this.min.y));
-  }
-
-  intersectsBox(box) {
-    // using 4 splitting planes to rule out intersections
-    return box.max.x < this.min.x || box.min.x > this.max.x || box.max.y < this.min.y || box.min.y > this.max.y ? false : true;
-  }
-
-  clampPoint(point, target) {
-    if (target === undefined) {
-      console.warn('THREE.Box2: .clampPoint() target is now required');
-      target = new Vector2();
-    }
-
-    return target.copy(point).clamp(this.min, this.max);
-  }
-
-  distanceToPoint(point) {
-    const clampedPoint = _vector$8.copy(point).clamp(this.min, this.max);
-
-    return clampedPoint.sub(point).length();
-  }
-
-  intersect(box) {
-    this.min.max(box.min);
-    this.max.min(box.max);
-    return this;
-  }
-
-  union(box) {
-    this.min.min(box.min);
-    this.max.max(box.max);
-    return this;
-  }
-
-  translate(offset) {
-    this.min.add(offset);
-    this.max.add(offset);
-    return this;
-  }
-
-  equals(box) {
-    return box.min.equals(this.min) && box.max.equals(this.max);
-  }
-
-}
-
-exports.Box2 = Box2;
-Box2.prototype.isBox2 = true;
-
-const _startP =
-/*@__PURE__*/
-new Vector3();
-
-const _startEnd =
-/*@__PURE__*/
-new Vector3();
-
-class Line3 {
-  constructor(start = new Vector3(), end = new Vector3()) {
-    this.start = start;
-    this.end = end;
-  }
-
-  set(start, end) {
-    this.start.copy(start);
-    this.end.copy(end);
-    return this;
-  }
-
-  copy(line) {
-    this.start.copy(line.start);
-    this.end.copy(line.end);
-    return this;
-  }
-
-  getCenter(target) {
-    if (target === undefined) {
-      console.warn('THREE.Line3: .getCenter() target is now required');
-      target = new Vector3();
-    }
-
-    return target.addVectors(this.start, this.end).multiplyScalar(0.5);
-  }
-
-  delta(target) {
-    if (target === undefined) {
-      console.warn('THREE.Line3: .delta() target is now required');
-      target = new Vector3();
-    }
-
-    return target.subVectors(this.end, this.start);
-  }
-
-  distanceSq() {
-    return this.start.distanceToSquared(this.end);
-  }
-
-  distance() {
-    return this.start.distanceTo(this.end);
-  }
-
-  at(t, target) {
-    if (target === undefined) {
-      console.warn('THREE.Line3: .at() target is now required');
-      target = new Vector3();
-    }
-
-    return this.delta(target).multiplyScalar(t).add(this.start);
-  }
-
-  closestPointToPointParameter(point, clampToLine) {
-    _startP.subVectors(point, this.start);
-
-    _startEnd.subVectors(this.end, this.start);
-
-    const startEnd2 = _startEnd.dot(_startEnd);
-
-    const startEnd_startP = _startEnd.dot(_startP);
-
-    let t = startEnd_startP / startEnd2;
-
-    if (clampToLine) {
-      t = MathUtils.clamp(t, 0, 1);
-    }
-
-    return t;
-  }
-
-  closestPointToPoint(point, clampToLine, target) {
-    const t = this.closestPointToPointParameter(point, clampToLine);
-
-    if (target === undefined) {
-      console.warn('THREE.Line3: .closestPointToPoint() target is now required');
-      target = new Vector3();
-    }
-
-    return this.delta(target).multiplyScalar(t).add(this.start);
-  }
-
-  applyMatrix4(matrix) {
-    this.start.applyMatrix4(matrix);
-    this.end.applyMatrix4(matrix);
-    return this;
-  }
-
-  equals(line) {
-    return line.start.equals(this.start) && line.end.equals(this.end);
-  }
-
-  clone() {
-    return new this.constructor().copy(this);
-  }
-
-}
-
-exports.Line3 = Line3;
-
-function ImmediateRenderObject(material) {
-  Object3D.call(this);
-  this.material = material;
-
-  this.render = function ()
-  /* renderCallback */
-  {};
-
-  this.hasPositions = false;
-  this.hasNormals = false;
-  this.hasColors = false;
-  this.hasUvs = false;
-  this.positionArray = null;
-  this.normalArray = null;
-  this.colorArray = null;
-  this.uvArray = null;
-  this.count = 0;
-}
-
-ImmediateRenderObject.prototype = Object.create(Object3D.prototype);
-ImmediateRenderObject.prototype.constructor = ImmediateRenderObject;
-ImmediateRenderObject.prototype.isImmediateRenderObject = true;
-
-const _vector$9 =
-/*@__PURE__*/
-new Vector3();
-
-class SpotLightHelper extends Object3D {
-  constructor(light, color) {
-    super();
-    this.light = light;
-    this.light.updateMatrixWorld();
-    this.matrix = light.matrixWorld;
-    this.matrixAutoUpdate = false;
-    this.color = color;
-    const geometry = new BufferGeometry();
-    const positions = [0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, -1, 1];
-
-    for (let i = 0, j = 1, l = 32; i < l; i++, j++) {
-      const p1 = i / l * Math.PI * 2;
-      const p2 = j / l * Math.PI * 2;
-      positions.push(Math.cos(p1), Math.sin(p1), 1, Math.cos(p2), Math.sin(p2), 1);
-    }
-
-    geometry.setAttribute('position', new Float32BufferAttribute(positions, 3));
-    const material = new LineBasicMaterial({
-      fog: false,
-      toneMapped: false
-    });
-    this.cone = new LineSegments(geometry, material);
-    this.add(this.cone);
-    this.update();
-  }
-
-  dispose() {
-    this.cone.geometry.dispose();
-    this.cone.material.dispose();
-  }
-
-  update() {
-    this.light.updateMatrixWorld();
-    const coneLength = this.light.distance ? this.light.distance : 1000;
-    const coneWidth = coneLength * Math.tan(this.light.angle);
-    this.cone.scale.set(coneWidth, coneWidth, coneLength);
-
-    _vector$9.setFromMatrixPosition(this.light.target.matrixWorld);
-
-    this.cone.lookAt(_vector$9);
-
-    if (this.color !== undefined) {
-      this.cone.material.color.set(this.color);
-    } else {
-      this.cone.material.color.copy(this.light.color);
-    }
-  }
-
-}
-
-exports.SpotLightHelper = SpotLightHelper;
-
-const _vector$a =
-/*@__PURE__*/
-new Vector3();
-
-const _boneMatrix =
-/*@__PURE__*/
-new Matrix4();
-
-const _matrixWorldInv =
-/*@__PURE__*/
-new Matrix4();
-
-class SkeletonHelper extends LineSegments {
-  constructor(object) {
-    const bones = getBoneList(object);
-    const geometry = new BufferGeometry();
-    const vertices = [];
-    const colors = [];
-    const color1 = new Color(0, 0, 1);
-    const color2 = new Color(0, 1, 0);
-
-    for (let i = 0; i < bones.length; i++) {
-      const bone = bones[i];
-
-      if (bone.parent && bone.parent.isBone) {
-        vertices.push(0, 0, 0);
-        vertices.push(0, 0, 0);
-        colors.push(color1.r, color1.g, color1.b);
-        colors.push(color2.r, color2.g, color2.b);
-      }
-    }
-
-    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
-    const material = new LineBasicMaterial({
-      vertexColors: true,
-      depthTest: false,
-      depthWrite: false,
-      toneMapped: false,
-      transparent: true
-    });
-    super(geometry, material);
-    this.type = 'SkeletonHelper';
-    this.isSkeletonHelper = true;
-    this.root = object;
-    this.bones = bones;
-    this.matrix = object.matrixWorld;
-    this.matrixAutoUpdate = false;
-  }
-
-  updateMatrixWorld(force) {
-    const bones = this.bones;
-    const geometry = this.geometry;
-    const position = geometry.getAttribute('position');
-
-    _matrixWorldInv.copy(this.root.matrixWorld).invert();
-
-    for (let i = 0, j = 0; i < bones.length; i++) {
-      const bone = bones[i];
-
-      if (bone.parent && bone.parent.isBone) {
-        _boneMatrix.multiplyMatrices(_matrixWorldInv, bone.matrixWorld);
-
-        _vector$a.setFromMatrixPosition(_boneMatrix);
-
-        position.setXYZ(j, _vector$a.x, _vector$a.y, _vector$a.z);
-
-        _boneMatrix.multiplyMatrices(_matrixWorldInv, bone.parent.matrixWorld);
-
-        _vector$a.setFromMatrixPosition(_boneMatrix);
-
-        position.setXYZ(j + 1, _vector$a.x, _vector$a.y, _vector$a.z);
-        j += 2;
-      }
-    }
-
-    geometry.getAttribute('position').needsUpdate = true;
-    super.updateMatrixWorld(force);
-  }
-
-}
-
-exports.SkeletonHelper = SkeletonHelper;
-
-function getBoneList(object) {
-  const boneList = [];
-
-  if (object && object.isBone) {
-    boneList.push(object);
-  }
-
-  for (let i = 0; i < object.children.length; i++) {
-    boneList.push.apply(boneList, getBoneList(object.children[i]));
-  }
-
-  return boneList;
-}
-
-class PointLightHelper extends Mesh {
-  constructor(light, sphereSize, color) {
-    const geometry = new SphereGeometry(sphereSize, 4, 2);
-    const material = new MeshBasicMaterial({
-      wireframe: true,
-      fog: false,
-      toneMapped: false
-    });
-    super(geometry, material);
-    this.light = light;
-    this.light.updateMatrixWorld();
-    this.color = color;
-    this.type = 'PointLightHelper';
-    this.matrix = this.light.matrixWorld;
-    this.matrixAutoUpdate = false;
-    this.update();
-    /*
-    // TODO: delete this comment?
-    const distanceGeometry = new THREE.IcosahedronBufferGeometry( 1, 2 );
-    const distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );
-    this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
-    this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );
-    const d = light.distance;
-    if ( d === 0.0 ) {
-    	this.lightDistance.visible = false;
-    } else {
-    	this.lightDistance.scale.set( d, d, d );
-    }
-    this.add( this.lightDistance );
-    */
-  }
-
-  dispose() {
-    this.geometry.dispose();
-    this.material.dispose();
-  }
-
-  update() {
-    if (this.color !== undefined) {
-      this.material.color.set(this.color);
-    } else {
-      this.material.color.copy(this.light.color);
-    }
-    /*
-    const d = this.light.distance;
-    	if ( d === 0.0 ) {
-    		this.lightDistance.visible = false;
-    	} else {
-    		this.lightDistance.visible = true;
-    	this.lightDistance.scale.set( d, d, d );
-    	}
-    */
-
-  }
-
-}
-
-exports.PointLightHelper = PointLightHelper;
-
-const _vector$b =
-/*@__PURE__*/
-new Vector3();
-
-const _color1 =
-/*@__PURE__*/
-new Color();
-
-const _color2 =
-/*@__PURE__*/
-new Color();
-
-class HemisphereLightHelper extends Object3D {
-  constructor(light, size, color) {
-    super();
-    this.light = light;
-    this.light.updateMatrixWorld();
-    this.matrix = light.matrixWorld;
-    this.matrixAutoUpdate = false;
-    this.color = color;
-    const geometry = new OctahedronGeometry(size);
-    geometry.rotateY(Math.PI * 0.5);
-    this.material = new MeshBasicMaterial({
-      wireframe: true,
-      fog: false,
-      toneMapped: false
-    });
-    if (this.color === undefined) this.material.vertexColors = true;
-    const position = geometry.getAttribute('position');
-    const colors = new Float32Array(position.count * 3);
-    geometry.setAttribute('color', new BufferAttribute(colors, 3));
-    this.add(new Mesh(geometry, this.material));
-    this.update();
-  }
-
-  dispose() {
-    this.children[0].geometry.dispose();
-    this.children[0].material.dispose();
-  }
-
-  update() {
-    const mesh = this.children[0];
-
-    if (this.color !== undefined) {
-      this.material.color.set(this.color);
-    } else {
-      const colors = mesh.geometry.getAttribute('color');
-
-      _color1.copy(this.light.color);
-
-      _color2.copy(this.light.groundColor);
-
-      for (let i = 0, l = colors.count; i < l; i++) {
-        const color = i < l / 2 ? _color1 : _color2;
-        colors.setXYZ(i, color.r, color.g, color.b);
-      }
-
-      colors.needsUpdate = true;
-    }
-
-    mesh.lookAt(_vector$b.setFromMatrixPosition(this.light.matrixWorld).negate());
-  }
-
-}
-
-exports.HemisphereLightHelper = HemisphereLightHelper;
-
-class GridHelper extends LineSegments {
-  constructor(size = 10, divisions = 10, color1 = 0x444444, color2 = 0x888888) {
-    color1 = new Color(color1);
-    color2 = new Color(color2);
-    const center = divisions / 2;
-    const step = size / divisions;
-    const halfSize = size / 2;
-    const vertices = [],
-          colors = [];
-
-    for (let i = 0, j = 0, k = -halfSize; i <= divisions; i++, k += step) {
-      vertices.push(-halfSize, 0, k, halfSize, 0, k);
-      vertices.push(k, 0, -halfSize, k, 0, halfSize);
-      const color = i === center ? color1 : color2;
-      color.toArray(colors, j);
-      j += 3;
-      color.toArray(colors, j);
-      j += 3;
-      color.toArray(colors, j);
-      j += 3;
-      color.toArray(colors, j);
-      j += 3;
-    }
-
-    const geometry = new BufferGeometry();
-    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
-    const material = new LineBasicMaterial({
-      vertexColors: true,
-      toneMapped: false
-    });
-    super(geometry, material);
-    this.type = 'GridHelper';
-  }
-
-}
-
-exports.GridHelper = GridHelper;
-
-class PolarGridHelper extends LineSegments {
-  constructor(radius = 10, radials = 16, circles = 8, divisions = 64, color1 = 0x444444, color2 = 0x888888) {
-    color1 = new Color(color1);
-    color2 = new Color(color2);
-    const vertices = [];
-    const colors = []; // create the radials
-
-    for (let i = 0; i <= radials; i++) {
-      const v = i / radials * (Math.PI * 2);
-      const x = Math.sin(v) * radius;
-      const z = Math.cos(v) * radius;
-      vertices.push(0, 0, 0);
-      vertices.push(x, 0, z);
-      const color = i & 1 ? color1 : color2;
-      colors.push(color.r, color.g, color.b);
-      colors.push(color.r, color.g, color.b);
-    } // create the circles
-
-
-    for (let i = 0; i <= circles; i++) {
-      const color = i & 1 ? color1 : color2;
-      const r = radius - radius / circles * i;
-
-      for (let j = 0; j < divisions; j++) {
-        // first vertex
-        let v = j / divisions * (Math.PI * 2);
-        let x = Math.sin(v) * r;
-        let z = Math.cos(v) * r;
-        vertices.push(x, 0, z);
-        colors.push(color.r, color.g, color.b); // second vertex
-
-        v = (j + 1) / divisions * (Math.PI * 2);
-        x = Math.sin(v) * r;
-        z = Math.cos(v) * r;
-        vertices.push(x, 0, z);
-        colors.push(color.r, color.g, color.b);
-      }
-    }
-
-    const geometry = new BufferGeometry();
-    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
-    const material = new LineBasicMaterial({
-      vertexColors: true,
-      toneMapped: false
-    });
-    super(geometry, material);
-    this.type = 'PolarGridHelper';
-  }
-
-}
-
-exports.PolarGridHelper = PolarGridHelper;
-
-const _v1$6 =
-/*@__PURE__*/
-new Vector3();
-
-const _v2$3 =
-/*@__PURE__*/
-new Vector3();
-
-const _v3$1 =
-/*@__PURE__*/
-new Vector3();
-
-class DirectionalLightHelper extends Object3D {
-  constructor(light, size, color) {
-    super();
-    this.light = light;
-    this.light.updateMatrixWorld();
-    this.matrix = light.matrixWorld;
-    this.matrixAutoUpdate = false;
-    this.color = color;
-    if (size === undefined) size = 1;
-    let geometry = new BufferGeometry();
-    geometry.setAttribute('position', new Float32BufferAttribute([-size, size, 0, size, size, 0, size, -size, 0, -size, -size, 0, -size, size, 0], 3));
-    const material = new LineBasicMaterial({
-      fog: false,
-      toneMapped: false
-    });
-    this.lightPlane = new Line(geometry, material);
-    this.add(this.lightPlane);
-    geometry = new BufferGeometry();
-    geometry.setAttribute('position', new Float32BufferAttribute([0, 0, 0, 0, 0, 1], 3));
-    this.targetLine = new Line(geometry, material);
-    this.add(this.targetLine);
-    this.update();
-  }
-
-  dispose() {
-    this.lightPlane.geometry.dispose();
-    this.lightPlane.material.dispose();
-    this.targetLine.geometry.dispose();
-    this.targetLine.material.dispose();
-  }
-
-  update() {
-    _v1$6.setFromMatrixPosition(this.light.matrixWorld);
-
-    _v2$3.setFromMatrixPosition(this.light.target.matrixWorld);
-
-    _v3$1.subVectors(_v2$3, _v1$6);
-
-    this.lightPlane.lookAt(_v2$3);
-
-    if (this.color !== undefined) {
-      this.lightPlane.material.color.set(this.color);
-      this.targetLine.material.color.set(this.color);
-    } else {
-      this.lightPlane.material.color.copy(this.light.color);
-      this.targetLine.material.color.copy(this.light.color);
-    }
-
-    this.targetLine.lookAt(_v2$3);
-    this.targetLine.scale.z = _v3$1.length();
-  }
-
-}
-
-exports.DirectionalLightHelper = DirectionalLightHelper;
-
-const _vector$c =
-/*@__PURE__*/
-new Vector3();
-
-const _camera =
-/*@__PURE__*/
-new Camera();
-/**
- *	- shows frustum, line of sight and up of the camera
- *	- suitable for fast updates
- * 	- based on frustum visualization in lightgl.js shadowmap example
- *		http://evanw.github.com/lightgl.js/tests/shadowmap.html
- */
-
-
-class CameraHelper extends LineSegments {
-  constructor(camera) {
-    const geometry = new BufferGeometry();
-    const material = new LineBasicMaterial({
-      color: 0xffffff,
-      vertexColors: true,
-      toneMapped: false
-    });
-    const vertices = [];
-    const colors = [];
-    const pointMap = {}; // colors
-
-    const colorFrustum = new Color(0xffaa00);
-    const colorCone = new Color(0xff0000);
-    const colorUp = new Color(0x00aaff);
-    const colorTarget = new Color(0xffffff);
-    const colorCross = new Color(0x333333); // near
-
-    addLine('n1', 'n2', colorFrustum);
-    addLine('n2', 'n4', colorFrustum);
-    addLine('n4', 'n3', colorFrustum);
-    addLine('n3', 'n1', colorFrustum); // far
-
-    addLine('f1', 'f2', colorFrustum);
-    addLine('f2', 'f4', colorFrustum);
-    addLine('f4', 'f3', colorFrustum);
-    addLine('f3', 'f1', colorFrustum); // sides
-
-    addLine('n1', 'f1', colorFrustum);
-    addLine('n2', 'f2', colorFrustum);
-    addLine('n3', 'f3', colorFrustum);
-    addLine('n4', 'f4', colorFrustum); // cone
-
-    addLine('p', 'n1', colorCone);
-    addLine('p', 'n2', colorCone);
-    addLine('p', 'n3', colorCone);
-    addLine('p', 'n4', colorCone); // up
-
-    addLine('u1', 'u2', colorUp);
-    addLine('u2', 'u3', colorUp);
-    addLine('u3', 'u1', colorUp); // target
-
-    addLine('c', 't', colorTarget);
-    addLine('p', 'c', colorCross); // cross
-
-    addLine('cn1', 'cn2', colorCross);
-    addLine('cn3', 'cn4', colorCross);
-    addLine('cf1', 'cf2', colorCross);
-    addLine('cf3', 'cf4', colorCross);
-
-    function addLine(a, b, color) {
-      addPoint(a, color);
-      addPoint(b, color);
-    }
-
-    function addPoint(id, color) {
-      vertices.push(0, 0, 0);
-      colors.push(color.r, color.g, color.b);
-
-      if (pointMap[id] === undefined) {
-        pointMap[id] = [];
-      }
-
-      pointMap[id].push(vertices.length / 3 - 1);
-    }
-
-    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
-    super(geometry, material);
-    this.type = 'CameraHelper';
-    this.camera = camera;
-    if (this.camera.updateProjectionMatrix) this.camera.updateProjectionMatrix();
-    this.matrix = camera.matrixWorld;
-    this.matrixAutoUpdate = false;
-    this.pointMap = pointMap;
-    this.update();
-  }
-
-  update() {
-    const geometry = this.geometry;
-    const pointMap = this.pointMap;
-    const w = 1,
-          h = 1; // we need just camera projection matrix inverse
-    // world matrix must be identity
-
-    _camera.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse); // center / target
-
-
-    setPoint('c', pointMap, geometry, _camera, 0, 0, -1);
-    setPoint('t', pointMap, geometry, _camera, 0, 0, 1); // near
-
-    setPoint('n1', pointMap, geometry, _camera, -w, -h, -1);
-    setPoint('n2', pointMap, geometry, _camera, w, -h, -1);
-    setPoint('n3', pointMap, geometry, _camera, -w, h, -1);
-    setPoint('n4', pointMap, geometry, _camera, w, h, -1); // far
-
-    setPoint('f1', pointMap, geometry, _camera, -w, -h, 1);
-    setPoint('f2', pointMap, geometry, _camera, w, -h, 1);
-    setPoint('f3', pointMap, geometry, _camera, -w, h, 1);
-    setPoint('f4', pointMap, geometry, _camera, w, h, 1); // up
-
-    setPoint('u1', pointMap, geometry, _camera, w * 0.7, h * 1.1, -1);
-    setPoint('u2', pointMap, geometry, _camera, -w * 0.7, h * 1.1, -1);
-    setPoint('u3', pointMap, geometry, _camera, 0, h * 2, -1); // cross
-
-    setPoint('cf1', pointMap, geometry, _camera, -w, 0, 1);
-    setPoint('cf2', pointMap, geometry, _camera, w, 0, 1);
-    setPoint('cf3', pointMap, geometry, _camera, 0, -h, 1);
-    setPoint('cf4', pointMap, geometry, _camera, 0, h, 1);
-    setPoint('cn1', pointMap, geometry, _camera, -w, 0, -1);
-    setPoint('cn2', pointMap, geometry, _camera, w, 0, -1);
-    setPoint('cn3', pointMap, geometry, _camera, 0, -h, -1);
-    setPoint('cn4', pointMap, geometry, _camera, 0, h, -1);
-    geometry.getAttribute('position').needsUpdate = true;
-  }
-
-}
-
-exports.CameraHelper = CameraHelper;
-
-function setPoint(point, pointMap, geometry, camera, x, y, z) {
-  _vector$c.set(x, y, z).unproject(camera);
-
-  const points = pointMap[point];
-
-  if (points !== undefined) {
-    const position = geometry.getAttribute('position');
-
-    for (let i = 0, l = points.length; i < l; i++) {
-      position.setXYZ(points[i], _vector$c.x, _vector$c.y, _vector$c.z);
-    }
-  }
-}
-
-const _box$3 =
-/*@__PURE__*/
-new Box3();
-
-class BoxHelper extends LineSegments {
-  constructor(object, color = 0xffff00) {
-    const indices = new Uint16Array([0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7]);
-    const positions = new Float32Array(8 * 3);
-    const geometry = new BufferGeometry();
-    geometry.setIndex(new BufferAttribute(indices, 1));
-    geometry.setAttribute('position', new BufferAttribute(positions, 3));
-    super(geometry, new LineBasicMaterial({
-      color: color,
-      toneMapped: false
-    }));
-    this.object = object;
-    this.type = 'BoxHelper';
-    this.matrixAutoUpdate = false;
-    this.update();
-  }
-
-  update(object) {
-    if (object !== undefined) {
-      console.warn('THREE.BoxHelper: .update() has no longer arguments.');
-    }
-
-    if (this.object !== undefined) {
-      _box$3.setFromObject(this.object);
-    }
-
-    if (_box$3.isEmpty()) return;
-    const min = _box$3.min;
-    const max = _box$3.max;
-    /*
-    	5____4
-    1/___0/|
-    | 6__|_7
-    2/___3/
-    	0: max.x, max.y, max.z
-    1: min.x, max.y, max.z
-    2: min.x, min.y, max.z
-    3: max.x, min.y, max.z
-    4: max.x, max.y, min.z
-    5: min.x, max.y, min.z
-    6: min.x, min.y, min.z
-    7: max.x, min.y, min.z
-    */
-
-    const position = this.geometry.attributes.position;
-    const array = position.array;
-    array[0] = max.x;
-    array[1] = max.y;
-    array[2] = max.z;
-    array[3] = min.x;
-    array[4] = max.y;
-    array[5] = max.z;
-    array[6] = min.x;
-    array[7] = min.y;
-    array[8] = max.z;
-    array[9] = max.x;
-    array[10] = min.y;
-    array[11] = max.z;
-    array[12] = max.x;
-    array[13] = max.y;
-    array[14] = min.z;
-    array[15] = min.x;
-    array[16] = max.y;
-    array[17] = min.z;
-    array[18] = min.x;
-    array[19] = min.y;
-    array[20] = min.z;
-    array[21] = max.x;
-    array[22] = min.y;
-    array[23] = min.z;
-    position.needsUpdate = true;
-    this.geometry.computeBoundingSphere();
-  }
-
-  setFromObject(object) {
-    this.object = object;
-    this.update();
-    return this;
-  }
-
-  copy(source) {
-    LineSegments.prototype.copy.call(this, source);
-    this.object = source.object;
-    return this;
-  }
-
-}
-
-exports.BoxHelper = BoxHelper;
-
-class Box3Helper extends LineSegments {
-  constructor(box, color = 0xffff00) {
-    const indices = new Uint16Array([0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7]);
-    const positions = [1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, -1];
-    const geometry = new BufferGeometry();
-    geometry.setIndex(new BufferAttribute(indices, 1));
-    geometry.setAttribute('position', new Float32BufferAttribute(positions, 3));
-    super(geometry, new LineBasicMaterial({
-      color: color,
-      toneMapped: false
-    }));
-    this.box = box;
-    this.type = 'Box3Helper';
-    this.geometry.computeBoundingSphere();
-  }
-
-  updateMatrixWorld(force) {
-    const box = this.box;
-    if (box.isEmpty()) return;
-    box.getCenter(this.position);
-    box.getSize(this.scale);
-    this.scale.multiplyScalar(0.5);
-    super.updateMatrixWorld(force);
-  }
-
-}
-
-exports.Box3Helper = Box3Helper;
-
-class PlaneHelper extends Line {
-  constructor(plane, size = 1, hex = 0xffff00) {
-    const color = hex;
-    const positions = [1, -1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0];
-    const geometry = new BufferGeometry();
-    geometry.setAttribute('position', new Float32BufferAttribute(positions, 3));
-    geometry.computeBoundingSphere();
-    super(geometry, new LineBasicMaterial({
-      color: color,
-      toneMapped: false
-    }));
-    this.type = 'PlaneHelper';
-    this.plane = plane;
-    this.size = size;
-    const positions2 = [1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, -1, -1, 1, 1, -1, 1];
-    const geometry2 = new BufferGeometry();
-    geometry2.setAttribute('position', new Float32BufferAttribute(positions2, 3));
-    geometry2.computeBoundingSphere();
-    this.add(new Mesh(geometry2, new MeshBasicMaterial({
-      color: color,
-      opacity: 0.2,
-      transparent: true,
-      depthWrite: false,
-      toneMapped: false
-    })));
-  }
-
-  updateMatrixWorld(force) {
-    let scale = -this.plane.constant;
-    if (Math.abs(scale) < 1e-8) scale = 1e-8; // sign does not matter
-
-    this.scale.set(0.5 * this.size, 0.5 * this.size, scale);
-    this.children[0].material.side = scale < 0 ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here
-
-    this.lookAt(this.plane.normal);
-    super.updateMatrixWorld(force);
-  }
-
-}
-
-exports.PlaneHelper = PlaneHelper;
-
-const _axis =
-/*@__PURE__*/
-new Vector3();
-
-let _lineGeometry, _coneGeometry;
-
-class ArrowHelper extends Object3D {
-  // dir is assumed to be normalized
-  constructor(dir = new Vector3(0, 0, 1), origin = new Vector3(0, 0, 0), length = 1, color = 0xffff00, headLength = length * 0.2, headWidth = headLength * 0.2) {
-    super();
-    this.type = 'ArrowHelper';
-
-    if (_lineGeometry === undefined) {
-      _lineGeometry = new BufferGeometry();
-
-      _lineGeometry.setAttribute('position', new Float32BufferAttribute([0, 0, 0, 0, 1, 0], 3));
-
-      _coneGeometry = new CylinderGeometry(0, 0.5, 1, 5, 1);
-
-      _coneGeometry.translate(0, -0.5, 0);
-    }
-
-    this.position.copy(origin);
-    this.line = new Line(_lineGeometry, new LineBasicMaterial({
-      color: color,
-      toneMapped: false
-    }));
-    this.line.matrixAutoUpdate = false;
-    this.add(this.line);
-    this.cone = new Mesh(_coneGeometry, new MeshBasicMaterial({
-      color: color,
-      toneMapped: false
-    }));
-    this.cone.matrixAutoUpdate = false;
-    this.add(this.cone);
-    this.setDirection(dir);
-    this.setLength(length, headLength, headWidth);
-  }
-
-  setDirection(dir) {
-    // dir is assumed to be normalized
-    if (dir.y > 0.99999) {
-      this.quaternion.set(0, 0, 0, 1);
-    } else if (dir.y < -0.99999) {
-      this.quaternion.set(1, 0, 0, 0);
-    } else {
-      _axis.set(dir.z, 0, -dir.x).normalize();
-
-      const radians = Math.acos(dir.y);
-      this.quaternion.setFromAxisAngle(_axis, radians);
-    }
-  }
-
-  setLength(length, headLength = length * 0.2, headWidth = headLength * 0.2) {
-    this.line.scale.set(1, Math.max(0.0001, length - headLength), 1); // see #17458
-
-    this.line.updateMatrix();
-    this.cone.scale.set(headWidth, headLength, headWidth);
-    this.cone.position.y = length;
-    this.cone.updateMatrix();
-  }
-
-  setColor(color) {
-    this.line.material.color.set(color);
-    this.cone.material.color.set(color);
-  }
-
-  copy(source) {
-    super.copy(source, false);
-    this.line.copy(source.line);
-    this.cone.copy(source.cone);
-    return this;
-  }
-
-}
-
-exports.ArrowHelper = ArrowHelper;
-
-class AxesHelper extends LineSegments {
-  constructor(size = 1) {
-    const vertices = [0, 0, 0, size, 0, 0, 0, 0, 0, 0, size, 0, 0, 0, 0, 0, 0, size];
-    const colors = [1, 0, 0, 1, 0.6, 0, 0, 1, 0, 0.6, 1, 0, 0, 0, 1, 0, 0.6, 1];
-    const geometry = new BufferGeometry();
-    geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
-    geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
-    const material = new LineBasicMaterial({
-      vertexColors: true,
-      toneMapped: false
-    });
-    super(geometry, material);
-    this.type = 'AxesHelper';
-  }
-
-}
-
-exports.AxesHelper = AxesHelper;
-
-const _floatView = new Float32Array(1);
-
-const _int32View = new Int32Array(_floatView.buffer);
-
-const DataUtils = {
-  // Converts float32 to float16 (stored as uint16 value).
-  toHalfFloat: function (val) {
-    // Source: http://gamedev.stackexchange.com/questions/17326/conversion-of-a-number-from-single-precision-floating-point-representation-to-a/17410#17410
-
-    /* This method is faster than the OpenEXR implementation (very often
-    * used, eg. in Ogre), with the additional benefit of rounding, inspired
-    * by James Tursa?s half-precision code. */
-    _floatView[0] = val;
-    const x = _int32View[0];
-    let bits = x >> 16 & 0x8000;
-    /* Get the sign */
-
-    let m = x >> 12 & 0x07ff;
-    /* Keep one extra bit for rounding */
-
-    const e = x >> 23 & 0xff;
-    /* Using int is faster here */
-
-    /* If zero, or denormal, or exponent underflows too much for a denormal
-    	* half, return signed zero. */
-
-    if (e < 103) return bits;
-    /* If NaN, return NaN. If Inf or exponent overflow, return Inf. */
-
-    if (e > 142) {
-      bits |= 0x7c00;
-      /* If exponent was 0xff and one mantissa bit was set, it means NaN,
-      			* not Inf, so make sure we set one mantissa bit too. */
-
-      bits |= (e == 255 ? 0 : 1) && x & 0x007fffff;
-      return bits;
-    }
-    /* If exponent underflows but not too much, return a denormal */
-
-
-    if (e < 113) {
-      m |= 0x0800;
-      /* Extra rounding may overflow and set mantissa to 0 and exponent
-      	* to 1, which is OK. */
-
-      bits |= (m >> 114 - e) + (m >> 113 - e & 1);
-      return bits;
-    }
-
-    bits |= e - 112 << 10 | m >> 1;
-    /* Extra rounding. An overflow will set mantissa to 0 and increment
-    	* the exponent, which is OK. */
-
-    bits += m & 1;
-    return bits;
-  }
-};
-exports.DataUtils = DataUtils;
-const LOD_MIN = 4;
-const LOD_MAX = 8;
-const SIZE_MAX = Math.pow(2, LOD_MAX); // The standard deviations (radians) associated with the extra mips. These are
-// chosen to approximate a Trowbridge-Reitz distribution function times the
-// geometric shadowing function. These sigma values squared must match the
-// variance #defines in cube_uv_reflection_fragment.glsl.js.
-
-const EXTRA_LOD_SIGMA = [0.125, 0.215, 0.35, 0.446, 0.526, 0.582];
-const TOTAL_LODS = LOD_MAX - LOD_MIN + 1 + EXTRA_LOD_SIGMA.length; // The maximum length of the blur for loop. Smaller sigmas will use fewer
-// samples and exit early, but not recompile the shader.
-
-const MAX_SAMPLES = 20;
-const ENCODINGS = {
-  [LinearEncoding]: 0,
-  [sRGBEncoding]: 1,
-  [RGBEEncoding]: 2,
-  [RGBM7Encoding]: 3,
-  [RGBM16Encoding]: 4,
-  [RGBDEncoding]: 5,
-  [GammaEncoding]: 6
-};
-const backgroundMaterial = new MeshBasicMaterial({
-  side: BackSide,
-  depthWrite: false,
-  depthTest: false
-});
-const backgroundBox = new Mesh(new BoxGeometry(), backgroundMaterial);
-
-const _flatCamera =
-/*@__PURE__*/
-new OrthographicCamera();
-
-const {
-  _lodPlanes,
-  _sizeLods,
-  _sigmas
-} =
-/*@__PURE__*/
-_createPlanes();
-
-const _clearColor =
-/*@__PURE__*/
-new Color();
-
-let _oldTarget = null; // Golden Ratio
-
-const PHI = (1 + Math.sqrt(5)) / 2;
-const INV_PHI = 1 / PHI; // Vertices of a dodecahedron (except the opposites, which represent the
-// same axis), used as axis directions evenly spread on a sphere.
-
-const _axisDirections = [
-/*@__PURE__*/
-new Vector3(1, 1, 1),
-/*@__PURE__*/
-new Vector3(-1, 1, 1),
-/*@__PURE__*/
-new Vector3(1, 1, -1),
-/*@__PURE__*/
-new Vector3(-1, 1, -1),
-/*@__PURE__*/
-new Vector3(0, PHI, INV_PHI),
-/*@__PURE__*/
-new Vector3(0, PHI, -INV_PHI),
-/*@__PURE__*/
-new Vector3(INV_PHI, 0, PHI),
-/*@__PURE__*/
-new Vector3(-INV_PHI, 0, PHI),
-/*@__PURE__*/
-new Vector3(PHI, INV_PHI, 0),
-/*@__PURE__*/
-new Vector3(-PHI, INV_PHI, 0)];
-/**
- * This class generates a Prefiltered, Mipmapped Radiance Environment Map
- * (PMREM) from a cubeMap environment texture. This allows different levels of
- * blur to be quickly accessed based on material roughness. It is packed into a
- * special CubeUV format that allows us to perform custom interpolation so that
- * we can support nonlinear formats such as RGBE. Unlike a traditional mipmap
- * chain, it only goes down to the LOD_MIN level (above), and then creates extra
- * even more filtered 'mips' at the same LOD_MIN resolution, associated with
- * higher roughness levels. In this way we maintain resolution to smoothly
- * interpolate diffuse lighting while limiting sampling computation.
- */
-
-function convertLinearToRGBE(color) {
-  const maxComponent = Math.max(color.r, color.g, color.b);
-  const fExp = Math.min(Math.max(Math.ceil(Math.log2(maxComponent)), -128.0), 127.0);
-  color.multiplyScalar(Math.pow(2.0, -fExp));
-  const alpha = (fExp + 128.0) / 255.0;
-  return alpha;
-}
-
-class PMREMGenerator {
-  constructor(renderer) {
-    this._renderer = renderer;
-    this._pingPongRenderTarget = null;
-    this._blurMaterial = _getBlurShader(MAX_SAMPLES);
-    this._equirectShader = null;
-    this._cubemapShader = null;
-
-    this._compileMaterial(this._blurMaterial);
-  }
-  /**
-   * Generates a PMREM from a supplied Scene, which can be faster than using an
-   * image if networking bandwidth is low. Optional sigma specifies a blur radius
-   * in radians to be applied to the scene before PMREM generation. Optional near
-   * and far planes ensure the scene is rendered in its entirety (the cubeCamera
-   * is placed at the origin).
-   */
-
-
-  fromScene(scene, sigma = 0, near = 0.1, far = 100) {
-    _oldTarget = this._renderer.getRenderTarget();
-
-    const cubeUVRenderTarget = this._allocateTargets();
-
-    this._sceneToCubeUV(scene, near, far, cubeUVRenderTarget);
-
-    if (sigma > 0) {
-      this._blur(cubeUVRenderTarget, 0, 0, sigma);
-    }
-
-    this._applyPMREM(cubeUVRenderTarget);
-
-    this._cleanup(cubeUVRenderTarget);
-
-    return cubeUVRenderTarget;
-  }
-  /**
-   * Generates a PMREM from an equirectangular texture, which can be either LDR
-   * (RGBFormat) or HDR (RGBEFormat). The ideal input image size is 1k (1024 x 512),
-   * as this matches best with the 256 x 256 cubemap output.
-   */
-
-
-  fromEquirectangular(equirectangular) {
-    return this._fromTexture(equirectangular);
-  }
-  /**
-   * Generates a PMREM from an cubemap texture, which can be either LDR
-   * (RGBFormat) or HDR (RGBEFormat). The ideal input cube size is 256 x 256,
-   * as this matches best with the 256 x 256 cubemap output.
-   */
-
-
-  fromCubemap(cubemap) {
-    return this._fromTexture(cubemap);
-  }
-  /**
-   * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during
-   * your texture's network fetch for increased concurrency.
-   */
-
-
-  compileCubemapShader() {
-    if (this._cubemapShader === null) {
-      this._cubemapShader = _getCubemapShader();
-
-      this._compileMaterial(this._cubemapShader);
-    }
-  }
-  /**
-   * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during
-   * your texture's network fetch for increased concurrency.
-   */
-
-
-  compileEquirectangularShader() {
-    if (this._equirectShader === null) {
-      this._equirectShader = _getEquirectShader();
-
-      this._compileMaterial(this._equirectShader);
-    }
-  }
-  /**
-   * Disposes of the PMREMGenerator's internal memory. Note that PMREMGenerator is a static class,
-   * so you should not need more than one PMREMGenerator object. If you do, calling dispose() on
-   * one of them will cause any others to also become unusable.
-   */
-
-
-  dispose() {
-    this._blurMaterial.dispose();
-
-    if (this._cubemapShader !== null) this._cubemapShader.dispose();
-    if (this._equirectShader !== null) this._equirectShader.dispose();
-
-    for (let i = 0; i < _lodPlanes.length; i++) {
-      _lodPlanes[i].dispose();
-    }
-  } // private interface
-
-
-  _cleanup(outputTarget) {
-    this._pingPongRenderTarget.dispose();
-
-    this._renderer.setRenderTarget(_oldTarget);
-
-    outputTarget.scissorTest = false;
-
-    _setViewport(outputTarget, 0, 0, outputTarget.width, outputTarget.height);
-  }
-
-  _fromTexture(texture) {
-    _oldTarget = this._renderer.getRenderTarget();
-
-    const cubeUVRenderTarget = this._allocateTargets(texture);
-
-    this._textureToCubeUV(texture, cubeUVRenderTarget);
-
-    this._applyPMREM(cubeUVRenderTarget);
-
-    this._cleanup(cubeUVRenderTarget);
-
-    return cubeUVRenderTarget;
-  }
-
-  _allocateTargets(texture) {
-    // warning: null texture is valid
-    const params = {
-      magFilter: NearestFilter,
-      minFilter: NearestFilter,
-      generateMipmaps: false,
-      type: UnsignedByteType,
-      format: RGBEFormat,
-      encoding: _isLDR(texture) ? texture.encoding : RGBEEncoding,
-      depthBuffer: false
-    };
-
-    const cubeUVRenderTarget = _createRenderTarget(params);
-
-    cubeUVRenderTarget.depthBuffer = texture ? false : true;
-    this._pingPongRenderTarget = _createRenderTarget(params);
-    return cubeUVRenderTarget;
-  }
-
-  _compileMaterial(material) {
-    const tmpMesh = new Mesh(_lodPlanes[0], material);
-
-    this._renderer.compile(tmpMesh, _flatCamera);
-  }
-
-  _sceneToCubeUV(scene, near, far, cubeUVRenderTarget) {
-    const fov = 90;
-    const aspect = 1;
-    const cubeCamera = new PerspectiveCamera(fov, aspect, near, far);
-    const upSign = [1, -1, 1, 1, 1, 1];
-    const forwardSign = [1, 1, 1, -1, -1, -1];
-    const renderer = this._renderer;
-    const originalAutoClear = renderer.autoClear;
-    const outputEncoding = renderer.outputEncoding;
-    const toneMapping = renderer.toneMapping;
-    renderer.getClearColor(_clearColor);
-    renderer.toneMapping = NoToneMapping;
-    renderer.outputEncoding = LinearEncoding;
-    renderer.autoClear = false;
-    let useSolidColor = false;
-    const background = scene.background;
-
-    if (background) {
-      if (background.isColor) {
-        backgroundMaterial.color.copy(background).convertSRGBToLinear();
-        scene.background = null;
-        const alpha = convertLinearToRGBE(backgroundMaterial.color);
-        backgroundMaterial.opacity = alpha;
-        useSolidColor = true;
-      }
-    } else {
-      backgroundMaterial.color.copy(_clearColor).convertSRGBToLinear();
-      const alpha = convertLinearToRGBE(backgroundMaterial.color);
-      backgroundMaterial.opacity = alpha;
-      useSolidColor = true;
-    }
-
-    for (let i = 0; i < 6; i++) {
-      const col = i % 3;
-
-      if (col == 0) {
-        cubeCamera.up.set(0, upSign[i], 0);
-        cubeCamera.lookAt(forwardSign[i], 0, 0);
-      } else if (col == 1) {
-        cubeCamera.up.set(0, 0, upSign[i]);
-        cubeCamera.lookAt(0, forwardSign[i], 0);
-      } else {
-        cubeCamera.up.set(0, upSign[i], 0);
-        cubeCamera.lookAt(0, 0, forwardSign[i]);
-      }
-
-      _setViewport(cubeUVRenderTarget, col * SIZE_MAX, i > 2 ? SIZE_MAX : 0, SIZE_MAX, SIZE_MAX);
-
-      renderer.setRenderTarget(cubeUVRenderTarget);
-
-      if (useSolidColor) {
-        renderer.render(backgroundBox, cubeCamera);
-      }
-
-      renderer.render(scene, cubeCamera);
-    }
-
-    renderer.toneMapping = toneMapping;
-    renderer.outputEncoding = outputEncoding;
-    renderer.autoClear = originalAutoClear;
-  }
-
-  _textureToCubeUV(texture, cubeUVRenderTarget) {
-    const renderer = this._renderer;
-
-    if (texture.isCubeTexture) {
-      if (this._cubemapShader == null) {
-        this._cubemapShader = _getCubemapShader();
-      }
-    } else {
-      if (this._equirectShader == null) {
-        this._equirectShader = _getEquirectShader();
-      }
-    }
-
-    const material = texture.isCubeTexture ? this._cubemapShader : this._equirectShader;
-    const mesh = new Mesh(_lodPlanes[0], material);
-    const uniforms = material.uniforms;
-    uniforms['envMap'].value = texture;
-
-    if (!texture.isCubeTexture) {
-      uniforms['texelSize'].value.set(1.0 / texture.image.width, 1.0 / texture.image.height);
-    }
-
-    uniforms['inputEncoding'].value = ENCODINGS[texture.encoding];
-    uniforms['outputEncoding'].value = ENCODINGS[cubeUVRenderTarget.texture.encoding];
-
-    _setViewport(cubeUVRenderTarget, 0, 0, 3 * SIZE_MAX, 2 * SIZE_MAX);
-
-    renderer.setRenderTarget(cubeUVRenderTarget);
-    renderer.render(mesh, _flatCamera);
-  }
-
-  _applyPMREM(cubeUVRenderTarget) {
-    const renderer = this._renderer;
-    const autoClear = renderer.autoClear;
-    renderer.autoClear = false;
-
-    for (let i = 1; i < TOTAL_LODS; i++) {
-      const sigma = Math.sqrt(_sigmas[i] * _sigmas[i] - _sigmas[i - 1] * _sigmas[i - 1]);
-      const poleAxis = _axisDirections[(i - 1) % _axisDirections.length];
-
-      this._blur(cubeUVRenderTarget, i - 1, i, sigma, poleAxis);
-    }
-
-    renderer.autoClear = autoClear;
-  }
-  /**
-   * This is a two-pass Gaussian blur for a cubemap. Normally this is done
-   * vertically and horizontally, but this breaks down on a cube. Here we apply
-   * the blur latitudinally (around the poles), and then longitudinally (towards
-   * the poles) to approximate the orthogonally-separable blur. It is least
-   * accurate at the poles, but still does a decent job.
-   */
-
-
-  _blur(cubeUVRenderTarget, lodIn, lodOut, sigma, poleAxis) {
-    const pingPongRenderTarget = this._pingPongRenderTarget;
-
-    this._halfBlur(cubeUVRenderTarget, pingPongRenderTarget, lodIn, lodOut, sigma, 'latitudinal', poleAxis);
-
-    this._halfBlur(pingPongRenderTarget, cubeUVRenderTarget, lodOut, lodOut, sigma, 'longitudinal', poleAxis);
-  }
-
-  _halfBlur(targetIn, targetOut, lodIn, lodOut, sigmaRadians, direction, poleAxis) {
-    const renderer = this._renderer;
-    const blurMaterial = this._blurMaterial;
-
-    if (direction !== 'latitudinal' && direction !== 'longitudinal') {
-      console.error('blur direction must be either latitudinal or longitudinal!');
-    } // Number of standard deviations at which to cut off the discrete approximation.
-
-
-    const STANDARD_DEVIATIONS = 3;
-    const blurMesh = new Mesh(_lodPlanes[lodOut], blurMaterial);
-    const blurUniforms = blurMaterial.uniforms;
-    const pixels = _sizeLods[lodIn] - 1;
-    const radiansPerPixel = isFinite(sigmaRadians) ? Math.PI / (2 * pixels) : 2 * Math.PI / (2 * MAX_SAMPLES - 1);
-    const sigmaPixels = sigmaRadians / radiansPerPixel;
-    const samples = isFinite(sigmaRadians) ? 1 + Math.floor(STANDARD_DEVIATIONS * sigmaPixels) : MAX_SAMPLES;
-
-    if (samples > MAX_SAMPLES) {
-      console.warn(`sigmaRadians, ${sigmaRadians}, is too large and will clip, as it requested ${samples} samples when the maximum is set to ${MAX_SAMPLES}`);
-    }
-
-    const weights = [];
-    let sum = 0;
-
-    for (let i = 0; i < MAX_SAMPLES; ++i) {
-      const x = i / sigmaPixels;
-      const weight = Math.exp(-x * x / 2);
-      weights.push(weight);
-
-      if (i == 0) {
-        sum += weight;
-      } else if (i < samples) {
-        sum += 2 * weight;
-      }
-    }
-
-    for (let i = 0; i < weights.length; i++) {
-      weights[i] = weights[i] / sum;
-    }
-
-    blurUniforms['envMap'].value = targetIn.texture;
-    blurUniforms['samples'].value = samples;
-    blurUniforms['weights'].value = weights;
-    blurUniforms['latitudinal'].value = direction === 'latitudinal';
-
-    if (poleAxis) {
-      blurUniforms['poleAxis'].value = poleAxis;
-    }
-
-    blurUniforms['dTheta'].value = radiansPerPixel;
-    blurUniforms['mipInt'].value = LOD_MAX - lodIn;
-    blurUniforms['inputEncoding'].value = ENCODINGS[targetIn.texture.encoding];
-    blurUniforms['outputEncoding'].value = ENCODINGS[targetIn.texture.encoding];
-    const outputSize = _sizeLods[lodOut];
-    const x = 3 * Math.max(0, SIZE_MAX - 2 * outputSize);
-    const y = (lodOut === 0 ? 0 : 2 * SIZE_MAX) + 2 * outputSize * (lodOut > LOD_MAX - LOD_MIN ? lodOut - LOD_MAX + LOD_MIN : 0);
-
-    _setViewport(targetOut, x, y, 3 * outputSize, 2 * outputSize);
-
-    renderer.setRenderTarget(targetOut);
-    renderer.render(blurMesh, _flatCamera);
-  }
-
-}
-
-exports.PMREMGenerator = PMREMGenerator;
-
-function _isLDR(texture) {
-  if (texture === undefined || texture.type !== UnsignedByteType) return false;
-  return texture.encoding === LinearEncoding || texture.encoding === sRGBEncoding || texture.encoding === GammaEncoding;
-}
-
-function _createPlanes() {
-  const _lodPlanes = [];
-  const _sizeLods = [];
-  const _sigmas = [];
-  let lod = LOD_MAX;
-
-  for (let i = 0; i < TOTAL_LODS; i++) {
-    const sizeLod = Math.pow(2, lod);
-
-    _sizeLods.push(sizeLod);
-
-    let sigma = 1.0 / sizeLod;
-
-    if (i > LOD_MAX - LOD_MIN) {
-      sigma = EXTRA_LOD_SIGMA[i - LOD_MAX + LOD_MIN - 1];
-    } else if (i == 0) {
-      sigma = 0;
-    }
-
-    _sigmas.push(sigma);
-
-    const texelSize = 1.0 / (sizeLod - 1);
-    const min = -texelSize / 2;
-    const max = 1 + texelSize / 2;
-    const uv1 = [min, min, max, min, max, max, min, min, max, max, min, max];
-    const cubeFaces = 6;
-    const vertices = 6;
-    const positionSize = 3;
-    const uvSize = 2;
-    const faceIndexSize = 1;
-    const position = new Float32Array(positionSize * vertices * cubeFaces);
-    const uv = new Float32Array(uvSize * vertices * cubeFaces);
-    const faceIndex = new Float32Array(faceIndexSize * vertices * cubeFaces);
-
-    for (let face = 0; face < cubeFaces; face++) {
-      const x = face % 3 * 2 / 3 - 1;
-      const y = face > 2 ? 0 : -1;
-      const coordinates = [x, y, 0, x + 2 / 3, y, 0, x + 2 / 3, y + 1, 0, x, y, 0, x + 2 / 3, y + 1, 0, x, y + 1, 0];
-      position.set(coordinates, positionSize * vertices * face);
-      uv.set(uv1, uvSize * vertices * face);
-      const fill = [face, face, face, face, face, face];
-      faceIndex.set(fill, faceIndexSize * vertices * face);
-    }
-
-    const planes = new BufferGeometry();
-    planes.setAttribute('position', new BufferAttribute(position, positionSize));
-    planes.setAttribute('uv', new BufferAttribute(uv, uvSize));
-    planes.setAttribute('faceIndex', new BufferAttribute(faceIndex, faceIndexSize));
-
-    _lodPlanes.push(planes);
-
-    if (lod > LOD_MIN) {
-      lod--;
-    }
-  }
-
-  return {
-    _lodPlanes,
-    _sizeLods,
-    _sigmas
-  };
-}
-
-function _createRenderTarget(params) {
-  const cubeUVRenderTarget = new WebGLRenderTarget(3 * SIZE_MAX, 3 * SIZE_MAX, params);
-  cubeUVRenderTarget.texture.mapping = CubeUVReflectionMapping;
-  cubeUVRenderTarget.texture.name = 'PMREM.cubeUv';
-  cubeUVRenderTarget.scissorTest = true;
-  return cubeUVRenderTarget;
-}
-
-function _setViewport(target, x, y, width, height) {
-  target.viewport.set(x, y, width, height);
-  target.scissor.set(x, y, width, height);
-}
-
-function _getBlurShader(maxSamples) {
-  const weights = new Float32Array(maxSamples);
-  const poleAxis = new Vector3(0, 1, 0);
-  const shaderMaterial = new RawShaderMaterial({
-    name: 'SphericalGaussianBlur',
-    defines: {
-      'n': maxSamples
-    },
-    uniforms: {
-      'envMap': {
-        value: null
-      },
-      'samples': {
-        value: 1
-      },
-      'weights': {
-        value: weights
-      },
-      'latitudinal': {
-        value: false
-      },
-      'dTheta': {
-        value: 0
-      },
-      'mipInt': {
-        value: 0
-      },
-      'poleAxis': {
-        value: poleAxis
-      },
-      'inputEncoding': {
-        value: ENCODINGS[LinearEncoding]
-      },
-      'outputEncoding': {
-        value: ENCODINGS[LinearEncoding]
-      }
-    },
-    vertexShader: _getCommonVertexShader(),
-    fragmentShader:
-    /* glsl */
-    `
-
-			precision mediump float;
-			precision mediump int;
-
-			varying vec3 vOutputDirection;
-
-			uniform sampler2D envMap;
-			uniform int samples;
-			uniform float weights[ n ];
-			uniform bool latitudinal;
-			uniform float dTheta;
-			uniform float mipInt;
-			uniform vec3 poleAxis;
-
-			${_getEncodings()}
-
-			#define ENVMAP_TYPE_CUBE_UV
-			#include <cube_uv_reflection_fragment>
-
-			vec3 getSample( float theta, vec3 axis ) {
-
-				float cosTheta = cos( theta );
-				// Rodrigues' axis-angle rotation
-				vec3 sampleDirection = vOutputDirection * cosTheta
-					+ cross( axis, vOutputDirection ) * sin( theta )
-					+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );
-
-				return bilinearCubeUV( envMap, sampleDirection, mipInt );
-
-			}
-
-			void main() {
-
-				vec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );
-
-				if ( all( equal( axis, vec3( 0.0 ) ) ) ) {
-
-					axis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );
-
-				}
-
-				axis = normalize( axis );
-
-				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
-				gl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );
-
-				for ( int i = 1; i < n; i++ ) {
-
-					if ( i >= samples ) {
-
-						break;
-
-					}
-
-					float theta = dTheta * float( i );
-					gl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );
-					gl_FragColor.rgb += weights[ i ] * getSample( theta, axis );
-
-				}
-
-				gl_FragColor = linearToOutputTexel( gl_FragColor );
-
-			}
-		`,
-    blending: NoBlending,
-    depthTest: false,
-    depthWrite: false
-  });
-  return shaderMaterial;
-}
-
-function _getEquirectShader() {
-  const texelSize = new Vector2(1, 1);
-  const shaderMaterial = new RawShaderMaterial({
-    name: 'EquirectangularToCubeUV',
-    uniforms: {
-      'envMap': {
-        value: null
-      },
-      'texelSize': {
-        value: texelSize
-      },
-      'inputEncoding': {
-        value: ENCODINGS[LinearEncoding]
-      },
-      'outputEncoding': {
-        value: ENCODINGS[LinearEncoding]
-      }
-    },
-    vertexShader: _getCommonVertexShader(),
-    fragmentShader:
-    /* glsl */
-    `
-
-			precision mediump float;
-			precision mediump int;
-
-			varying vec3 vOutputDirection;
-
-			uniform sampler2D envMap;
-			uniform vec2 texelSize;
-
-			${_getEncodings()}
-
-			#include <common>
-
-			void main() {
-
-				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
-
-				vec3 outputDirection = normalize( vOutputDirection );
-				vec2 uv = equirectUv( outputDirection );
-
-				vec2 f = fract( uv / texelSize - 0.5 );
-				uv -= f * texelSize;
-				vec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;
-				uv.x += texelSize.x;
-				vec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;
-				uv.y += texelSize.y;
-				vec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;
-				uv.x -= texelSize.x;
-				vec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;
-
-				vec3 tm = mix( tl, tr, f.x );
-				vec3 bm = mix( bl, br, f.x );
-				gl_FragColor.rgb = mix( tm, bm, f.y );
-
-				gl_FragColor = linearToOutputTexel( gl_FragColor );
-
-			}
-		`,
-    blending: NoBlending,
-    depthTest: false,
-    depthWrite: false
-  });
-  return shaderMaterial;
-}
-
-function _getCubemapShader() {
-  const shaderMaterial = new RawShaderMaterial({
-    name: 'CubemapToCubeUV',
-    uniforms: {
-      'envMap': {
-        value: null
-      },
-      'inputEncoding': {
-        value: ENCODINGS[LinearEncoding]
-      },
-      'outputEncoding': {
-        value: ENCODINGS[LinearEncoding]
-      }
-    },
-    vertexShader: _getCommonVertexShader(),
-    fragmentShader:
-    /* glsl */
-    `
-
-			precision mediump float;
-			precision mediump int;
-
-			varying vec3 vOutputDirection;
-
-			uniform samplerCube envMap;
-
-			${_getEncodings()}
-
-			void main() {
-
-				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
-				gl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;
-				gl_FragColor = linearToOutputTexel( gl_FragColor );
-
-			}
-		`,
-    blending: NoBlending,
-    depthTest: false,
-    depthWrite: false
-  });
-  return shaderMaterial;
-}
-
-function _getCommonVertexShader() {
-  return (
-    /* glsl */
-    `
-
-		precision mediump float;
-		precision mediump int;
-
-		attribute vec3 position;
-		attribute vec2 uv;
-		attribute float faceIndex;
-
-		varying vec3 vOutputDirection;
-
-		// RH coordinate system; PMREM face-indexing convention
-		vec3 getDirection( vec2 uv, float face ) {
-
-			uv = 2.0 * uv - 1.0;
-
-			vec3 direction = vec3( uv, 1.0 );
-
-			if ( face == 0.0 ) {
-
-				direction = direction.zyx; // ( 1, v, u ) pos x
-
-			} else if ( face == 1.0 ) {
-
-				direction = direction.xzy;
-				direction.xz *= -1.0; // ( -u, 1, -v ) pos y
-
-			} else if ( face == 2.0 ) {
-
-				direction.x *= -1.0; // ( -u, v, 1 ) pos z
-
-			} else if ( face == 3.0 ) {
-
-				direction = direction.zyx;
-				direction.xz *= -1.0; // ( -1, v, -u ) neg x
-
-			} else if ( face == 4.0 ) {
-
-				direction = direction.xzy;
-				direction.xy *= -1.0; // ( -u, -1, v ) neg y
-
-			} else if ( face == 5.0 ) {
-
-				direction.z *= -1.0; // ( u, v, -1 ) neg z
-
-			}
-
-			return direction;
-
-		}
-
-		void main() {
-
-			vOutputDirection = getDirection( uv, faceIndex );
-			gl_Position = vec4( position, 1.0 );
-
-		}
-	`
-  );
-}
-
-function _getEncodings() {
-  return (
-    /* glsl */
-    `
-
-		uniform int inputEncoding;
-		uniform int outputEncoding;
-
-		#include <encodings_pars_fragment>
-
-		vec4 inputTexelToLinear( vec4 value ) {
-
-			if ( inputEncoding == 0 ) {
-
-				return value;
-
-			} else if ( inputEncoding == 1 ) {
-
-				return sRGBToLinear( value );
-
-			} else if ( inputEncoding == 2 ) {
-
-				return RGBEToLinear( value );
-
-			} else if ( inputEncoding == 3 ) {
-
-				return RGBMToLinear( value, 7.0 );
-
-			} else if ( inputEncoding == 4 ) {
-
-				return RGBMToLinear( value, 16.0 );
-
-			} else if ( inputEncoding == 5 ) {
-
-				return RGBDToLinear( value, 256.0 );
-
-			} else {
-
-				return GammaToLinear( value, 2.2 );
-
-			}
-
-		}
-
-		vec4 linearToOutputTexel( vec4 value ) {
-
-			if ( outputEncoding == 0 ) {
-
-				return value;
-
-			} else if ( outputEncoding == 1 ) {
-
-				return LinearTosRGB( value );
-
-			} else if ( outputEncoding == 2 ) {
-
-				return LinearToRGBE( value );
-
-			} else if ( outputEncoding == 3 ) {
-
-				return LinearToRGBM( value, 7.0 );
-
-			} else if ( outputEncoding == 4 ) {
-
-				return LinearToRGBM( value, 16.0 );
-
-			} else if ( outputEncoding == 5 ) {
-
-				return LinearToRGBD( value, 256.0 );
-
-			} else {
-
-				return LinearToGamma( value, 2.2 );
-
-			}
-
-		}
-
-		vec4 envMapTexelToLinear( vec4 color ) {
-
-			return inputTexelToLinear( color );
-
-		}
-	`
-  );
-}
-
-const LineStrip = 0;
-exports.LineStrip = LineStrip;
-const LinePieces = 1;
-exports.LinePieces = LinePieces;
-const NoColors = 0;
-exports.NoColors = NoColors;
-const FaceColors = 1;
-exports.FaceColors = FaceColors;
-const VertexColors = 2;
-exports.VertexColors = VertexColors;
-
-function MeshFaceMaterial(materials) {
-  console.warn('THREE.MeshFaceMaterial has been removed. Use an Array instead.');
-  return materials;
-}
-
-function MultiMaterial(materials = []) {
-  console.warn('THREE.MultiMaterial has been removed. Use an Array instead.');
-  materials.isMultiMaterial = true;
-  materials.materials = materials;
-
-  materials.clone = function () {
-    return materials.slice();
-  };
-
-  return materials;
-}
-
-function PointCloud(geometry, material) {
-  console.warn('THREE.PointCloud has been renamed to THREE.Points.');
-  return new Points(geometry, material);
-}
-
-function Particle(material) {
-  console.warn('THREE.Particle has been renamed to THREE.Sprite.');
-  return new Sprite(material);
-}
-
-function ParticleSystem(geometry, material) {
-  console.warn('THREE.ParticleSystem has been renamed to THREE.Points.');
-  return new Points(geometry, material);
-}
-
-function PointCloudMaterial(parameters) {
-  console.warn('THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.');
-  return new PointsMaterial(parameters);
-}
-
-function ParticleBasicMaterial(parameters) {
-  console.warn('THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.');
-  return new PointsMaterial(parameters);
-}
-
-function ParticleSystemMaterial(parameters) {
-  console.warn('THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.');
-  return new PointsMaterial(parameters);
-}
-
-function Vertex(x, y, z) {
-  console.warn('THREE.Vertex has been removed. Use THREE.Vector3 instead.');
-  return new Vector3(x, y, z);
-} //
-
-
-function DynamicBufferAttribute(array, itemSize) {
-  console.warn('THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead.');
-  return new BufferAttribute(array, itemSize).setUsage(DynamicDrawUsage);
-}
-
-function Int8Attribute(array, itemSize) {
-  console.warn('THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.');
-  return new Int8BufferAttribute(array, itemSize);
-}
-
-function Uint8Attribute(array, itemSize) {
-  console.warn('THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.');
-  return new Uint8BufferAttribute(array, itemSize);
-}
-
-function Uint8ClampedAttribute(array, itemSize) {
-  console.warn('THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.');
-  return new Uint8ClampedBufferAttribute(array, itemSize);
-}
-
-function Int16Attribute(array, itemSize) {
-  console.warn('THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.');
-  return new Int16BufferAttribute(array, itemSize);
-}
-
-function Uint16Attribute(array, itemSize) {
-  console.warn('THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.');
-  return new Uint16BufferAttribute(array, itemSize);
-}
-
-function Int32Attribute(array, itemSize) {
-  console.warn('THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.');
-  return new Int32BufferAttribute(array, itemSize);
-}
-
-function Uint32Attribute(array, itemSize) {
-  console.warn('THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.');
-  return new Uint32BufferAttribute(array, itemSize);
-}
-
-function Float32Attribute(array, itemSize) {
-  console.warn('THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.');
-  return new Float32BufferAttribute(array, itemSize);
-}
-
-function Float64Attribute(array, itemSize) {
-  console.warn('THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.');
-  return new Float64BufferAttribute(array, itemSize);
-} //
-
-
-Curve.create = function (construct, getPoint) {
-  console.log('THREE.Curve.create() has been deprecated');
-  construct.prototype = Object.create(Curve.prototype);
-  construct.prototype.constructor = construct;
-  construct.prototype.getPoint = getPoint;
-  return construct;
-}; //
-
-
-Path.prototype.fromPoints = function (points) {
-  console.warn('THREE.Path: .fromPoints() has been renamed to .setFromPoints().');
-  return this.setFromPoints(points);
-}; //
-
-
-function AxisHelper(size) {
-  console.warn('THREE.AxisHelper has been renamed to THREE.AxesHelper.');
-  return new AxesHelper(size);
-}
-
-function BoundingBoxHelper(object, color) {
-  console.warn('THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.');
-  return new BoxHelper(object, color);
-}
-
-function EdgesHelper(object, hex) {
-  console.warn('THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.');
-  return new LineSegments(new EdgesGeometry(object.geometry), new LineBasicMaterial({
-    color: hex !== undefined ? hex : 0xffffff
-  }));
-}
-
-GridHelper.prototype.setColors = function () {
-  console.error('THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.');
-};
-
-SkeletonHelper.prototype.update = function () {
-  console.error('THREE.SkeletonHelper: update() no longer needs to be called.');
-};
-
-function WireframeHelper(object, hex) {
-  console.warn('THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.');
-  return new LineSegments(new WireframeGeometry(object.geometry), new LineBasicMaterial({
-    color: hex !== undefined ? hex : 0xffffff
-  }));
-} //
-
-
-Loader.prototype.extractUrlBase = function (url) {
-  console.warn('THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.');
-  return LoaderUtils.extractUrlBase(url);
-};
-
-Loader.Handlers = {
-  add: function ()
-  /* regex, loader */
-  {
-    console.error('THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.');
-  },
-  get: function ()
-  /* file */
-  {
-    console.error('THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.');
-  }
-};
-
-function XHRLoader(manager) {
-  console.warn('THREE.XHRLoader has been renamed to THREE.FileLoader.');
-  return new FileLoader(manager);
-}
-
-function BinaryTextureLoader(manager) {
-  console.warn('THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.');
-  return new DataTextureLoader(manager);
-} //
-
-
-Box2.prototype.center = function (optionalTarget) {
-  console.warn('THREE.Box2: .center() has been renamed to .getCenter().');
-  return this.getCenter(optionalTarget);
-};
-
-Box2.prototype.empty = function () {
-  console.warn('THREE.Box2: .empty() has been renamed to .isEmpty().');
-  return this.isEmpty();
-};
-
-Box2.prototype.isIntersectionBox = function (box) {
-  console.warn('THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().');
-  return this.intersectsBox(box);
-};
-
-Box2.prototype.size = function (optionalTarget) {
-  console.warn('THREE.Box2: .size() has been renamed to .getSize().');
-  return this.getSize(optionalTarget);
-}; //
-
-
-Box3.prototype.center = function (optionalTarget) {
-  console.warn('THREE.Box3: .center() has been renamed to .getCenter().');
-  return this.getCenter(optionalTarget);
-};
-
-Box3.prototype.empty = function () {
-  console.warn('THREE.Box3: .empty() has been renamed to .isEmpty().');
-  return this.isEmpty();
-};
-
-Box3.prototype.isIntersectionBox = function (box) {
-  console.warn('THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().');
-  return this.intersectsBox(box);
-};
-
-Box3.prototype.isIntersectionSphere = function (sphere) {
-  console.warn('THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().');
-  return this.intersectsSphere(sphere);
-};
-
-Box3.prototype.size = function (optionalTarget) {
-  console.warn('THREE.Box3: .size() has been renamed to .getSize().');
-  return this.getSize(optionalTarget);
-}; //
-
-
-Sphere.prototype.empty = function () {
-  console.warn('THREE.Sphere: .empty() has been renamed to .isEmpty().');
-  return this.isEmpty();
-}; //
-
-
-Frustum.prototype.setFromMatrix = function (m) {
-  console.warn('THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix().');
-  return this.setFromProjectionMatrix(m);
-}; //
-
-
-Line3.prototype.center = function (optionalTarget) {
-  console.warn('THREE.Line3: .center() has been renamed to .getCenter().');
-  return this.getCenter(optionalTarget);
-}; //
-
-
-MathUtils.random16 = function () {
-  console.warn('THREE.Math: .random16() has been deprecated. Use Math.random() instead.');
-  return Math.random();
-};
-
-MathUtils.nearestPowerOfTwo = function (value) {
-  console.warn('THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().');
-  return MathUtils.floorPowerOfTwo(value);
-};
-
-MathUtils.nextPowerOfTwo = function (value) {
-  console.warn('THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().');
-  return MathUtils.ceilPowerOfTwo(value);
-}; //
-
-
-Matrix3.prototype.flattenToArrayOffset = function (array, offset) {
-  console.warn('THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.');
-  return this.toArray(array, offset);
-};
-
-Matrix3.prototype.multiplyVector3 = function (vector) {
-  console.warn('THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.');
-  return vector.applyMatrix3(this);
-};
-
-Matrix3.prototype.multiplyVector3Array = function ()
-/* a */
-{
-  console.error('THREE.Matrix3: .multiplyVector3Array() has been removed.');
-};
-
-Matrix3.prototype.applyToBufferAttribute = function (attribute) {
-  console.warn('THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead.');
-  return attribute.applyMatrix3(this);
-};
-
-Matrix3.prototype.applyToVector3Array = function ()
-/* array, offset, length */
-{
-  console.error('THREE.Matrix3: .applyToVector3Array() has been removed.');
-};
-
-Matrix3.prototype.getInverse = function (matrix) {
-  console.warn('THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.');
-  return this.copy(matrix).invert();
-}; //
-
-
-Matrix4.prototype.extractPosition = function (m) {
-  console.warn('THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().');
-  return this.copyPosition(m);
-};
-
-Matrix4.prototype.flattenToArrayOffset = function (array, offset) {
-  console.warn('THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.');
-  return this.toArray(array, offset);
-};
-
-Matrix4.prototype.getPosition = function () {
-  console.warn('THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.');
-  return new Vector3().setFromMatrixColumn(this, 3);
-};
-
-Matrix4.prototype.setRotationFromQuaternion = function (q) {
-  console.warn('THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().');
-  return this.makeRotationFromQuaternion(q);
-};
-
-Matrix4.prototype.multiplyToArray = function () {
-  console.warn('THREE.Matrix4: .multiplyToArray() has been removed.');
-};
-
-Matrix4.prototype.multiplyVector3 = function (vector) {
-  console.warn('THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.');
-  return vector.applyMatrix4(this);
-};
-
-Matrix4.prototype.multiplyVector4 = function (vector) {
-  console.warn('THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.');
-  return vector.applyMatrix4(this);
-};
-
-Matrix4.prototype.multiplyVector3Array = function ()
-/* a */
-{
-  console.error('THREE.Matrix4: .multiplyVector3Array() has been removed.');
-};
-
-Matrix4.prototype.rotateAxis = function (v) {
-  console.warn('THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.');
-  v.transformDirection(this);
-};
-
-Matrix4.prototype.crossVector = function (vector) {
-  console.warn('THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.');
-  return vector.applyMatrix4(this);
-};
-
-Matrix4.prototype.translate = function () {
-  console.error('THREE.Matrix4: .translate() has been removed.');
-};
-
-Matrix4.prototype.rotateX = function () {
-  console.error('THREE.Matrix4: .rotateX() has been removed.');
-};
-
-Matrix4.prototype.rotateY = function () {
-  console.error('THREE.Matrix4: .rotateY() has been removed.');
-};
-
-Matrix4.prototype.rotateZ = function () {
-  console.error('THREE.Matrix4: .rotateZ() has been removed.');
-};
-
-Matrix4.prototype.rotateByAxis = function () {
-  console.error('THREE.Matrix4: .rotateByAxis() has been removed.');
-};
-
-Matrix4.prototype.applyToBufferAttribute = function (attribute) {
-  console.warn('THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead.');
-  return attribute.applyMatrix4(this);
-};
-
-Matrix4.prototype.applyToVector3Array = function ()
-/* array, offset, length */
-{
-  console.error('THREE.Matrix4: .applyToVector3Array() has been removed.');
-};
-
-Matrix4.prototype.makeFrustum = function (left, right, bottom, top, near, far) {
-  console.warn('THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.');
-  return this.makePerspective(left, right, top, bottom, near, far);
-};
-
-Matrix4.prototype.getInverse = function (matrix) {
-  console.warn('THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.');
-  return this.copy(matrix).invert();
-}; //
-
-
-Plane.prototype.isIntersectionLine = function (line) {
-  console.warn('THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().');
-  return this.intersectsLine(line);
-}; //
-
-
-Quaternion.prototype.multiplyVector3 = function (vector) {
-  console.warn('THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.');
-  return vector.applyQuaternion(this);
-};
-
-Quaternion.prototype.inverse = function () {
-  console.warn('THREE.Quaternion: .inverse() has been renamed to invert().');
-  return this.invert();
-}; //
-
-
-Ray.prototype.isIntersectionBox = function (box) {
-  console.warn('THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().');
-  return this.intersectsBox(box);
-};
-
-Ray.prototype.isIntersectionPlane = function (plane) {
-  console.warn('THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().');
-  return this.intersectsPlane(plane);
-};
-
-Ray.prototype.isIntersectionSphere = function (sphere) {
-  console.warn('THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().');
-  return this.intersectsSphere(sphere);
-}; //
-
-
-Triangle.prototype.area = function () {
-  console.warn('THREE.Triangle: .area() has been renamed to .getArea().');
-  return this.getArea();
-};
-
-Triangle.prototype.barycoordFromPoint = function (point, target) {
-  console.warn('THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().');
-  return this.getBarycoord(point, target);
-};
-
-Triangle.prototype.midpoint = function (target) {
-  console.warn('THREE.Triangle: .midpoint() has been renamed to .getMidpoint().');
-  return this.getMidpoint(target);
-};
-
-Triangle.prototypenormal = function (target) {
-  console.warn('THREE.Triangle: .normal() has been renamed to .getNormal().');
-  return this.getNormal(target);
-};
-
-Triangle.prototype.plane = function (target) {
-  console.warn('THREE.Triangle: .plane() has been renamed to .getPlane().');
-  return this.getPlane(target);
-};
-
-Triangle.barycoordFromPoint = function (point, a, b, c, target) {
-  console.warn('THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().');
-  return Triangle.getBarycoord(point, a, b, c, target);
-};
-
-Triangle.normal = function (a, b, c, target) {
-  console.warn('THREE.Triangle: .normal() has been renamed to .getNormal().');
-  return Triangle.getNormal(a, b, c, target);
-}; //
-
-
-Shape.prototype.extractAllPoints = function (divisions) {
-  console.warn('THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.');
-  return this.extractPoints(divisions);
-};
-
-Shape.prototype.extrude = function (options) {
-  console.warn('THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.');
-  return new ExtrudeGeometry(this, options);
-};
-
-Shape.prototype.makeGeometry = function (options) {
-  console.warn('THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.');
-  return new ShapeGeometry(this, options);
-}; //
-
-
-Vector2.prototype.fromAttribute = function (attribute, index, offset) {
-  console.warn('THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().');
-  return this.fromBufferAttribute(attribute, index, offset);
-};
-
-Vector2.prototype.distanceToManhattan = function (v) {
-  console.warn('THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().');
-  return this.manhattanDistanceTo(v);
-};
-
-Vector2.prototype.lengthManhattan = function () {
-  console.warn('THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().');
-  return this.manhattanLength();
-}; //
-
-
-Vector3.prototype.setEulerFromRotationMatrix = function () {
-  console.error('THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.');
-};
-
-Vector3.prototype.setEulerFromQuaternion = function () {
-  console.error('THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.');
-};
-
-Vector3.prototype.getPositionFromMatrix = function (m) {
-  console.warn('THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().');
-  return this.setFromMatrixPosition(m);
-};
-
-Vector3.prototype.getScaleFromMatrix = function (m) {
-  console.warn('THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().');
-  return this.setFromMatrixScale(m);
-};
-
-Vector3.prototype.getColumnFromMatrix = function (index, matrix) {
-  console.warn('THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().');
-  return this.setFromMatrixColumn(matrix, index);
-};
-
-Vector3.prototype.applyProjection = function (m) {
-  console.warn('THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.');
-  return this.applyMatrix4(m);
-};
-
-Vector3.prototype.fromAttribute = function (attribute, index, offset) {
-  console.warn('THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().');
-  return this.fromBufferAttribute(attribute, index, offset);
-};
-
-Vector3.prototype.distanceToManhattan = function (v) {
-  console.warn('THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().');
-  return this.manhattanDistanceTo(v);
-};
-
-Vector3.prototype.lengthManhattan = function () {
-  console.warn('THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().');
-  return this.manhattanLength();
-}; //
-
-
-Vector4.prototype.fromAttribute = function (attribute, index, offset) {
-  console.warn('THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().');
-  return this.fromBufferAttribute(attribute, index, offset);
-};
-
-Vector4.prototype.lengthManhattan = function () {
-  console.warn('THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().');
-  return this.manhattanLength();
-}; //
-
-
-Object3D.prototype.getChildByName = function (name) {
-  console.warn('THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().');
-  return this.getObjectByName(name);
-};
-
-Object3D.prototype.renderDepth = function () {
-  console.warn('THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.');
-};
-
-Object3D.prototype.translate = function (distance, axis) {
-  console.warn('THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.');
-  return this.translateOnAxis(axis, distance);
-};
-
-Object3D.prototype.getWorldRotation = function () {
-  console.error('THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.');
-};
-
-Object3D.prototype.applyMatrix = function (matrix) {
-  console.warn('THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4().');
-  return this.applyMatrix4(matrix);
-};
-
-Object.defineProperties(Object3D.prototype, {
-  eulerOrder: {
-    get: function () {
-      console.warn('THREE.Object3D: .eulerOrder is now .rotation.order.');
-      return this.rotation.order;
-    },
-    set: function (value) {
-      console.warn('THREE.Object3D: .eulerOrder is now .rotation.order.');
-      this.rotation.order = value;
-    }
-  },
-  useQuaternion: {
-    get: function () {
-      console.warn('THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.');
-    },
-    set: function () {
-      console.warn('THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.');
-    }
-  }
-});
-
-Mesh.prototype.setDrawMode = function () {
-  console.error('THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.');
-};
-
-Object.defineProperties(Mesh.prototype, {
-  drawMode: {
-    get: function () {
-      console.error('THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode.');
-      return TrianglesDrawMode;
-    },
-    set: function () {
-      console.error('THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.');
-    }
-  }
-});
-Object.defineProperties(LOD.prototype, {
-  objects: {
-    get: function () {
-      console.warn('THREE.LOD: .objects has been renamed to .levels.');
-      return this.levels;
-    }
-  }
-});
-Object.defineProperty(Skeleton.prototype, 'useVertexTexture', {
-  get: function () {
-    console.warn('THREE.Skeleton: useVertexTexture has been removed.');
-  },
-  set: function () {
-    console.warn('THREE.Skeleton: useVertexTexture has been removed.');
-  }
-});
-
-SkinnedMesh.prototype.initBones = function () {
-  console.error('THREE.SkinnedMesh: initBones() has been removed.');
-};
-
-Object.defineProperty(Curve.prototype, '__arcLengthDivisions', {
-  get: function () {
-    console.warn('THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.');
-    return this.arcLengthDivisions;
-  },
-  set: function (value) {
-    console.warn('THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.');
-    this.arcLengthDivisions = value;
-  }
-}); //
-
-PerspectiveCamera.prototype.setLens = function (focalLength, filmGauge) {
-  console.warn('THREE.PerspectiveCamera.setLens is deprecated. ' + 'Use .setFocalLength and .filmGauge for a photographic setup.');
-  if (filmGauge !== undefined) this.filmGauge = filmGauge;
-  this.setFocalLength(focalLength);
-}; //
-
-
-Object.defineProperties(Light.prototype, {
-  onlyShadow: {
-    set: function () {
-      console.warn('THREE.Light: .onlyShadow has been removed.');
-    }
-  },
-  shadowCameraFov: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowCameraFov is now .shadow.camera.fov.');
-      this.shadow.camera.fov = value;
-    }
-  },
-  shadowCameraLeft: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowCameraLeft is now .shadow.camera.left.');
-      this.shadow.camera.left = value;
-    }
-  },
-  shadowCameraRight: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowCameraRight is now .shadow.camera.right.');
-      this.shadow.camera.right = value;
-    }
-  },
-  shadowCameraTop: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowCameraTop is now .shadow.camera.top.');
-      this.shadow.camera.top = value;
-    }
-  },
-  shadowCameraBottom: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.');
-      this.shadow.camera.bottom = value;
-    }
-  },
-  shadowCameraNear: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowCameraNear is now .shadow.camera.near.');
-      this.shadow.camera.near = value;
-    }
-  },
-  shadowCameraFar: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowCameraFar is now .shadow.camera.far.');
-      this.shadow.camera.far = value;
-    }
-  },
-  shadowCameraVisible: {
-    set: function () {
-      console.warn('THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.');
-    }
-  },
-  shadowBias: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowBias is now .shadow.bias.');
-      this.shadow.bias = value;
-    }
-  },
-  shadowDarkness: {
-    set: function () {
-      console.warn('THREE.Light: .shadowDarkness has been removed.');
-    }
-  },
-  shadowMapWidth: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.');
-      this.shadow.mapSize.width = value;
-    }
-  },
-  shadowMapHeight: {
-    set: function (value) {
-      console.warn('THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.');
-      this.shadow.mapSize.height = value;
-    }
-  }
-}); //
-
-Object.defineProperties(BufferAttribute.prototype, {
-  length: {
-    get: function () {
-      console.warn('THREE.BufferAttribute: .length has been deprecated. Use .count instead.');
-      return this.array.length;
-    }
-  },
-  dynamic: {
-    get: function () {
-      console.warn('THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.');
-      return this.usage === DynamicDrawUsage;
-    },
-    set: function ()
-    /* value */
-    {
-      console.warn('THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.');
-      this.setUsage(DynamicDrawUsage);
-    }
-  }
-});
-
-BufferAttribute.prototype.setDynamic = function (value) {
-  console.warn('THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead.');
-  this.setUsage(value === true ? DynamicDrawUsage : StaticDrawUsage);
-  return this;
-};
-
-BufferAttribute.prototype.copyIndicesArray = function ()
-/* indices */
-{
-  console.error('THREE.BufferAttribute: .copyIndicesArray() has been removed.');
-}, BufferAttribute.prototype.setArray = function ()
-/* array */
-{
-  console.error('THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers');
-}; //
-
-BufferGeometry.prototype.addIndex = function (index) {
-  console.warn('THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().');
-  this.setIndex(index);
-};
-
-BufferGeometry.prototype.addAttribute = function (name, attribute) {
-  console.warn('THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute().');
-
-  if (!(attribute && attribute.isBufferAttribute) && !(attribute && attribute.isInterleavedBufferAttribute)) {
-    console.warn('THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).');
-    return this.setAttribute(name, new BufferAttribute(arguments[1], arguments[2]));
-  }
-
-  if (name === 'index') {
-    console.warn('THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.');
-    this.setIndex(attribute);
-    return this;
-  }
-
-  return this.setAttribute(name, attribute);
-};
-
-BufferGeometry.prototype.addDrawCall = function (start, count, indexOffset) {
-  if (indexOffset !== undefined) {
-    console.warn('THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.');
-  }
-
-  console.warn('THREE.BufferGeometry: .addDrawCall() is now .addGroup().');
-  this.addGroup(start, count);
-};
-
-BufferGeometry.prototype.clearDrawCalls = function () {
-  console.warn('THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().');
-  this.clearGroups();
-};
-
-BufferGeometry.prototype.computeOffsets = function () {
-  console.warn('THREE.BufferGeometry: .computeOffsets() has been removed.');
-};
-
-BufferGeometry.prototype.removeAttribute = function (name) {
-  console.warn('THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute().');
-  return this.deleteAttribute(name);
-};
-
-BufferGeometry.prototype.applyMatrix = function (matrix) {
-  console.warn('THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4().');
-  return this.applyMatrix4(matrix);
-};
-
-Object.defineProperties(BufferGeometry.prototype, {
-  drawcalls: {
-    get: function () {
-      console.error('THREE.BufferGeometry: .drawcalls has been renamed to .groups.');
-      return this.groups;
-    }
-  },
-  offsets: {
-    get: function () {
-      console.warn('THREE.BufferGeometry: .offsets has been renamed to .groups.');
-      return this.groups;
-    }
-  }
-});
-Object.defineProperties(InstancedBufferGeometry.prototype, {
-  maxInstancedCount: {
-    get: function () {
-      console.warn('THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount.');
-      return this.instanceCount;
-    },
-    set: function (value) {
-      console.warn('THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount.');
-      this.instanceCount = value;
-    }
-  }
-});
-Object.defineProperties(Raycaster.prototype, {
-  linePrecision: {
-    get: function () {
-      console.warn('THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead.');
-      return this.params.Line.threshold;
-    },
-    set: function (value) {
-      console.warn('THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead.');
-      this.params.Line.threshold = value;
-    }
-  }
-});
-Object.defineProperties(InterleavedBuffer.prototype, {
-  dynamic: {
-    get: function () {
-      console.warn('THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead.');
-      return this.usage === DynamicDrawUsage;
-    },
-    set: function (value) {
-      console.warn('THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead.');
-      this.setUsage(value);
-    }
-  }
-});
-
-InterleavedBuffer.prototype.setDynamic = function (value) {
-  console.warn('THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead.');
-  this.setUsage(value === true ? DynamicDrawUsage : StaticDrawUsage);
-  return this;
-};
-
-InterleavedBuffer.prototype.setArray = function ()
-/* array */
-{
-  console.error('THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers');
-}; //
-
-
-ExtrudeGeometry.prototype.getArrays = function () {
-  console.error('THREE.ExtrudeGeometry: .getArrays() has been removed.');
-};
-
-ExtrudeGeometry.prototype.addShapeList = function () {
-  console.error('THREE.ExtrudeGeometry: .addShapeList() has been removed.');
-};
-
-ExtrudeGeometry.prototype.addShape = function () {
-  console.error('THREE.ExtrudeGeometry: .addShape() has been removed.');
-}; //
-
-
-Scene.prototype.dispose = function () {
-  console.error('THREE.Scene: .dispose() has been removed.');
-}; //
-
-
-Object.defineProperties(Uniform.prototype, {
-  dynamic: {
-    set: function () {
-      console.warn('THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.');
-    }
-  },
-  onUpdate: {
-    value: function () {
-      console.warn('THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.');
-      return this;
-    }
-  }
-}); //
-
-Object.defineProperties(Material.prototype, {
-  wrapAround: {
-    get: function () {
-      console.warn('THREE.Material: .wrapAround has been removed.');
-    },
-    set: function () {
-      console.warn('THREE.Material: .wrapAround has been removed.');
-    }
-  },
-  overdraw: {
-    get: function () {
-      console.warn('THREE.Material: .overdraw has been removed.');
-    },
-    set: function () {
-      console.warn('THREE.Material: .overdraw has been removed.');
-    }
-  },
-  wrapRGB: {
-    get: function () {
-      console.warn('THREE.Material: .wrapRGB has been removed.');
-      return new Color();
-    }
-  },
-  shading: {
-    get: function () {
-      console.error('THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.');
-    },
-    set: function (value) {
-      console.warn('THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.');
-      this.flatShading = value === FlatShading;
-    }
-  },
-  stencilMask: {
-    get: function () {
-      console.warn('THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.');
-      return this.stencilFuncMask;
-    },
-    set: function (value) {
-      console.warn('THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.');
-      this.stencilFuncMask = value;
-    }
-  }
-});
-Object.defineProperties(MeshPhongMaterial.prototype, {
-  metal: {
-    get: function () {
-      console.warn('THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.');
-      return false;
-    },
-    set: function () {
-      console.warn('THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead');
-    }
-  }
-});
-Object.defineProperties(MeshPhysicalMaterial.prototype, {
-  transparency: {
-    get: function () {
-      console.warn('THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission.');
-      return this.transmission;
-    },
-    set: function (value) {
-      console.warn('THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission.');
-      this.transmission = value;
-    }
-  }
-});
-Object.defineProperties(ShaderMaterial.prototype, {
-  derivatives: {
-    get: function () {
-      console.warn('THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.');
-      return this.extensions.derivatives;
-    },
-    set: function (value) {
-      console.warn('THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.');
-      this.extensions.derivatives = value;
-    }
-  }
-}); //
-
-WebGLRenderer.prototype.clearTarget = function (renderTarget, color, depth, stencil) {
-  console.warn('THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead.');
-  this.setRenderTarget(renderTarget);
-  this.clear(color, depth, stencil);
-};
-
-WebGLRenderer.prototype.animate = function (callback) {
-  console.warn('THREE.WebGLRenderer: .animate() is now .setAnimationLoop().');
-  this.setAnimationLoop(callback);
-};
-
-WebGLRenderer.prototype.getCurrentRenderTarget = function () {
-  console.warn('THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().');
-  return this.getRenderTarget();
-};
-
-WebGLRenderer.prototype.getMaxAnisotropy = function () {
-  console.warn('THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().');
-  return this.capabilities.getMaxAnisotropy();
-};
-
-WebGLRenderer.prototype.getPrecision = function () {
-  console.warn('THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.');
-  return this.capabilities.precision;
-};
-
-WebGLRenderer.prototype.resetGLState = function () {
-  console.warn('THREE.WebGLRenderer: .resetGLState() is now .state.reset().');
-  return this.state.reset();
-};
-
-WebGLRenderer.prototype.supportsFloatTextures = function () {
-  console.warn('THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).');
-  return this.extensions.get('OES_texture_float');
-};
-
-WebGLRenderer.prototype.supportsHalfFloatTextures = function () {
-  console.warn('THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).');
-  return this.extensions.get('OES_texture_half_float');
-};
-
-WebGLRenderer.prototype.supportsStandardDerivatives = function () {
-  console.warn('THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).');
-  return this.extensions.get('OES_standard_derivatives');
-};
-
-WebGLRenderer.prototype.supportsCompressedTextureS3TC = function () {
-  console.warn('THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).');
-  return this.extensions.get('WEBGL_compressed_texture_s3tc');
-};
-
-WebGLRenderer.prototype.supportsCompressedTexturePVRTC = function () {
-  console.warn('THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).');
-  return this.extensions.get('WEBGL_compressed_texture_pvrtc');
-};
-
-WebGLRenderer.prototype.supportsBlendMinMax = function () {
-  console.warn('THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).');
-  return this.extensions.get('EXT_blend_minmax');
-};
-
-WebGLRenderer.prototype.supportsVertexTextures = function () {
-  console.warn('THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.');
-  return this.capabilities.vertexTextures;
-};
-
-WebGLRenderer.prototype.supportsInstancedArrays = function () {
-  console.warn('THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).');
-  return this.extensions.get('ANGLE_instanced_arrays');
-};
-
-WebGLRenderer.prototype.enableScissorTest = function (boolean) {
-  console.warn('THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().');
-  this.setScissorTest(boolean);
-};
-
-WebGLRenderer.prototype.initMaterial = function () {
-  console.warn('THREE.WebGLRenderer: .initMaterial() has been removed.');
-};
-
-WebGLRenderer.prototype.addPrePlugin = function () {
-  console.warn('THREE.WebGLRenderer: .addPrePlugin() has been removed.');
-};
-
-WebGLRenderer.prototype.addPostPlugin = function () {
-  console.warn('THREE.WebGLRenderer: .addPostPlugin() has been removed.');
-};
-
-WebGLRenderer.prototype.updateShadowMap = function () {
-  console.warn('THREE.WebGLRenderer: .updateShadowMap() has been removed.');
-};
-
-WebGLRenderer.prototype.setFaceCulling = function () {
-  console.warn('THREE.WebGLRenderer: .setFaceCulling() has been removed.');
-};
-
-WebGLRenderer.prototype.allocTextureUnit = function () {
-  console.warn('THREE.WebGLRenderer: .allocTextureUnit() has been removed.');
-};
-
-WebGLRenderer.prototype.setTexture = function () {
-  console.warn('THREE.WebGLRenderer: .setTexture() has been removed.');
-};
-
-WebGLRenderer.prototype.setTexture2D = function () {
-  console.warn('THREE.WebGLRenderer: .setTexture2D() has been removed.');
-};
-
-WebGLRenderer.prototype.setTextureCube = function () {
-  console.warn('THREE.WebGLRenderer: .setTextureCube() has been removed.');
-};
-
-WebGLRenderer.prototype.getActiveMipMapLevel = function () {
-  console.warn('THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel().');
-  return this.getActiveMipmapLevel();
-};
-
-Object.defineProperties(WebGLRenderer.prototype, {
-  shadowMapEnabled: {
-    get: function () {
-      return this.shadowMap.enabled;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.');
-      this.shadowMap.enabled = value;
-    }
-  },
-  shadowMapType: {
-    get: function () {
-      return this.shadowMap.type;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.');
-      this.shadowMap.type = value;
-    }
-  },
-  shadowMapCullFace: {
-    get: function () {
-      console.warn('THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.');
-      return undefined;
-    },
-    set: function ()
-    /* value */
-    {
-      console.warn('THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.');
-    }
-  },
-  context: {
-    get: function () {
-      console.warn('THREE.WebGLRenderer: .context has been removed. Use .getContext() instead.');
-      return this.getContext();
-    }
-  },
-  vr: {
-    get: function () {
-      console.warn('THREE.WebGLRenderer: .vr has been renamed to .xr');
-      return this.xr;
-    }
-  },
-  gammaInput: {
-    get: function () {
-      console.warn('THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.');
-      return false;
-    },
-    set: function () {
-      console.warn('THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.');
-    }
-  },
-  gammaOutput: {
-    get: function () {
-      console.warn('THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.');
-      return false;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.');
-      this.outputEncoding = value === true ? sRGBEncoding : LinearEncoding;
-    }
-  },
-  toneMappingWhitePoint: {
-    get: function () {
-      console.warn('THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.');
-      return 1.0;
-    },
-    set: function () {
-      console.warn('THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.');
-    }
-  }
-});
-Object.defineProperties(WebGLShadowMap.prototype, {
-  cullFace: {
-    get: function () {
-      console.warn('THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.');
-      return undefined;
-    },
-    set: function ()
-    /* cullFace */
-    {
-      console.warn('THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.');
-    }
-  },
-  renderReverseSided: {
-    get: function () {
-      console.warn('THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.');
-      return undefined;
-    },
-    set: function () {
-      console.warn('THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.');
-    }
-  },
-  renderSingleSided: {
-    get: function () {
-      console.warn('THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.');
-      return undefined;
-    },
-    set: function () {
-      console.warn('THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.');
-    }
-  }
-});
-
-function WebGLRenderTargetCube(width, height, options) {
-  console.warn('THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options ).');
-  return new WebGLCubeRenderTarget(width, options);
-} //
-
-
-Object.defineProperties(WebGLRenderTarget.prototype, {
-  wrapS: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.');
-      return this.texture.wrapS;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.');
-      this.texture.wrapS = value;
-    }
-  },
-  wrapT: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.');
-      return this.texture.wrapT;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.');
-      this.texture.wrapT = value;
-    }
-  },
-  magFilter: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.');
-      return this.texture.magFilter;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.');
-      this.texture.magFilter = value;
-    }
-  },
-  minFilter: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.');
-      return this.texture.minFilter;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.');
-      this.texture.minFilter = value;
-    }
-  },
-  anisotropy: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.');
-      return this.texture.anisotropy;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.');
-      this.texture.anisotropy = value;
-    }
-  },
-  offset: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .offset is now .texture.offset.');
-      return this.texture.offset;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .offset is now .texture.offset.');
-      this.texture.offset = value;
-    }
-  },
-  repeat: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .repeat is now .texture.repeat.');
-      return this.texture.repeat;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .repeat is now .texture.repeat.');
-      this.texture.repeat = value;
-    }
-  },
-  format: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .format is now .texture.format.');
-      return this.texture.format;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .format is now .texture.format.');
-      this.texture.format = value;
-    }
-  },
-  type: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .type is now .texture.type.');
-      return this.texture.type;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .type is now .texture.type.');
-      this.texture.type = value;
-    }
-  },
-  generateMipmaps: {
-    get: function () {
-      console.warn('THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.');
-      return this.texture.generateMipmaps;
-    },
-    set: function (value) {
-      console.warn('THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.');
-      this.texture.generateMipmaps = value;
-    }
-  }
-}); //
-
-Object.defineProperties(Audio.prototype, {
-  load: {
-    value: function (file) {
-      console.warn('THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.');
-      const scope = this;
-      const audioLoader = new AudioLoader();
-      audioLoader.load(file, function (buffer) {
-        scope.setBuffer(buffer);
-      });
-      return this;
-    }
-  },
-  startTime: {
-    set: function () {
-      console.warn('THREE.Audio: .startTime is now .play( delay ).');
-    }
-  }
-});
-
-AudioAnalyser.prototype.getData = function () {
-  console.warn('THREE.AudioAnalyser: .getData() is now .getFrequencyData().');
-  return this.getFrequencyData();
-}; //
-
-
-CubeCamera.prototype.updateCubeMap = function (renderer, scene) {
-  console.warn('THREE.CubeCamera: .updateCubeMap() is now .update().');
-  return this.update(renderer, scene);
-};
-
-CubeCamera.prototype.clear = function (renderer, color, depth, stencil) {
-  console.warn('THREE.CubeCamera: .clear() is now .renderTarget.clear().');
-  return this.renderTarget.clear(renderer, color, depth, stencil);
-};
-
-ImageUtils.crossOrigin = undefined;
-
-ImageUtils.loadTexture = function (url, mapping, onLoad, onError) {
-  console.warn('THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.');
-  const loader = new TextureLoader();
-  loader.setCrossOrigin(this.crossOrigin);
-  const texture = loader.load(url, onLoad, undefined, onError);
-  if (mapping) texture.mapping = mapping;
-  return texture;
-};
-
-ImageUtils.loadTextureCube = function (urls, mapping, onLoad, onError) {
-  console.warn('THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.');
-  const loader = new CubeTextureLoader();
-  loader.setCrossOrigin(this.crossOrigin);
-  const texture = loader.load(urls, onLoad, undefined, onError);
-  if (mapping) texture.mapping = mapping;
-  return texture;
-};
-
-ImageUtils.loadCompressedTexture = function () {
-  console.error('THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.');
-};
-
-ImageUtils.loadCompressedTextureCube = function () {
-  console.error('THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.');
-}; //
-
-
-function CanvasRenderer() {
-  console.error('THREE.CanvasRenderer has been removed');
-} //
-
-
-function JSONLoader() {
-  console.error('THREE.JSONLoader has been removed.');
-} //
-
-
-const SceneUtils = {
-  createMultiMaterialObject: function ()
-  /* geometry, materials */
-  {
-    console.error('THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js');
-  },
-  detach: function ()
-  /* child, parent, scene */
-  {
-    console.error('THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js');
-  },
-  attach: function ()
-  /* child, scene, parent */
-  {
-    console.error('THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js');
-  }
-}; //
-
-exports.SceneUtils = SceneUtils;
-
-function LensFlare() {
-  console.error('THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js');
-}
-
-if (typeof __THREE_DEVTOOLS__ !== 'undefined') {
-  /* eslint-disable no-undef */
-  __THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('register', {
-    detail: {
-      revision: REVISION
-    }
-  }));
-  /* eslint-enable no-undef */
-
-}
-
-if (typeof window !== 'undefined') {
-  if (window.__THREE__) {
-    console.warn('WARNING: Multiple instances of Three.js being imported.');
-  } else {
-    window.__THREE__ = REVISION;
-  }
-}
-},{}],"../node_modules/three/examples/jsm/controls/OrbitControls.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.MapControls = exports.OrbitControls = void 0;
-
-var _threeModule = require("../../../build/three.module.js");
-
-// This set of controls performs orbiting, dollying (zooming), and panning.
-// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
-//
-//    Orbit - left mouse / touch: one-finger move
-//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
-//    Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move
-var OrbitControls = function (object, domElement) {
-  if (domElement === undefined) console.warn('THREE.OrbitControls: The second parameter "domElement" is now mandatory.');
-  if (domElement === document) console.error('THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.');
-  this.object = object;
-  this.domElement = domElement; // Set to false to disable this control
-
-  this.enabled = true; // "target" sets the location of focus, where the object orbits around
-
-  this.target = new _threeModule.Vector3(); // How far you can dolly in and out ( PerspectiveCamera only )
-
-  this.minDistance = 0;
-  this.maxDistance = Infinity; // How far you can zoom in and out ( OrthographicCamera only )
-
-  this.minZoom = 0;
-  this.maxZoom = Infinity; // How far you can orbit vertically, upper and lower limits.
-  // Range is 0 to Math.PI radians.
-
-  this.minPolarAngle = 0; // radians
-
-  this.maxPolarAngle = Math.PI; // radians
-  // How far you can orbit horizontally, upper and lower limits.
-  // If set, the interval [ min, max ] must be a sub-interval of [ - 2 PI, 2 PI ], with ( max - min < 2 PI )
-
-  this.minAzimuthAngle = -Infinity; // radians
-
-  this.maxAzimuthAngle = Infinity; // radians
-  // Set to true to enable damping (inertia)
-  // If damping is enabled, you must call controls.update() in your animation loop
-
-  this.enableDamping = false;
-  this.dampingFactor = 0.05; // This option actually enables dollying in and out; left as "zoom" for backwards compatibility.
-  // Set to false to disable zooming
-
-  this.enableZoom = true;
-  this.zoomSpeed = 1.0; // Set to false to disable rotating
-
-  this.enableRotate = true;
-  this.rotateSpeed = 1.0; // Set to false to disable panning
-
-  this.enablePan = true;
-  this.panSpeed = 1.0;
-  this.screenSpacePanning = true; // if false, pan orthogonal to world-space direction camera.up
-
-  this.keyPanSpeed = 7.0; // pixels moved per arrow key push
-  // Set to true to automatically rotate around the target
-  // If auto-rotate is enabled, you must call controls.update() in your animation loop
-
-  this.autoRotate = false;
-  this.autoRotateSpeed = 2.0; // 30 seconds per orbit when fps is 60
-  // The four arrow keys
-
-  this.keys = {
-    LEFT: 37,
-    UP: 38,
-    RIGHT: 39,
-    BOTTOM: 40
-  }; // Mouse buttons
-
-  this.mouseButtons = {
-    LEFT: _threeModule.MOUSE.ROTATE,
-    MIDDLE: _threeModule.MOUSE.DOLLY,
-    RIGHT: _threeModule.MOUSE.PAN
-  }; // Touch fingers
-
-  this.touches = {
-    ONE: _threeModule.TOUCH.ROTATE,
-    TWO: _threeModule.TOUCH.DOLLY_PAN
-  }; // for reset
-
-  this.target0 = this.target.clone();
-  this.position0 = this.object.position.clone();
-  this.zoom0 = this.object.zoom; // the target DOM element for key events
-
-  this._domElementKeyEvents = null; //
-  // public methods
-  //
-
-  this.getPolarAngle = function () {
-    return spherical.phi;
-  };
-
-  this.getAzimuthalAngle = function () {
-    return spherical.theta;
-  };
-
-  this.listenToKeyEvents = function (domElement) {
-    domElement.addEventListener('keydown', onKeyDown);
-    this._domElementKeyEvents = domElement;
-  };
-
-  this.saveState = function () {
-    scope.target0.copy(scope.target);
-    scope.position0.copy(scope.object.position);
-    scope.zoom0 = scope.object.zoom;
-  };
-
-  this.reset = function () {
-    scope.target.copy(scope.target0);
-    scope.object.position.copy(scope.position0);
-    scope.object.zoom = scope.zoom0;
-    scope.object.updateProjectionMatrix();
-    scope.dispatchEvent(changeEvent);
-    scope.update();
-    state = STATE.NONE;
-  }; // this method is exposed, but perhaps it would be better if we can make it private...
-
-
-  this.update = function () {
-    var offset = new _threeModule.Vector3(); // so camera.up is the orbit axis
-
-    var quat = new _threeModule.Quaternion().setFromUnitVectors(object.up, new _threeModule.Vector3(0, 1, 0));
-    var quatInverse = quat.clone().invert();
-    var lastPosition = new _threeModule.Vector3();
-    var lastQuaternion = new _threeModule.Quaternion();
-    var twoPI = 2 * Math.PI;
-    return function update() {
-      var position = scope.object.position;
-      offset.copy(position).sub(scope.target); // rotate offset to "y-axis-is-up" space
-
-      offset.applyQuaternion(quat); // angle from z-axis around y-axis
-
-      spherical.setFromVector3(offset);
-
-      if (scope.autoRotate && state === STATE.NONE) {
-        rotateLeft(getAutoRotationAngle());
-      }
-
-      if (scope.enableDamping) {
-        spherical.theta += sphericalDelta.theta * scope.dampingFactor;
-        spherical.phi += sphericalDelta.phi * scope.dampingFactor;
-      } else {
-        spherical.theta += sphericalDelta.theta;
-        spherical.phi += sphericalDelta.phi;
-      } // restrict theta to be between desired limits
-
-
-      var min = scope.minAzimuthAngle;
-      var max = scope.maxAzimuthAngle;
-
-      if (isFinite(min) && isFinite(max)) {
-        if (min < -Math.PI) min += twoPI;else if (min > Math.PI) min -= twoPI;
-        if (max < -Math.PI) max += twoPI;else if (max > Math.PI) max -= twoPI;
-
-        if (min <= max) {
-          spherical.theta = Math.max(min, Math.min(max, spherical.theta));
-        } else {
-          spherical.theta = spherical.theta > (min + max) / 2 ? Math.max(min, spherical.theta) : Math.min(max, spherical.theta);
-        }
-      } // restrict phi to be between desired limits
-
-
-      spherical.phi = Math.max(scope.minPolarAngle, Math.min(scope.maxPolarAngle, spherical.phi));
-      spherical.makeSafe();
-      spherical.radius *= scale; // restrict radius to be between desired limits
-
-      spherical.radius = Math.max(scope.minDistance, Math.min(scope.maxDistance, spherical.radius)); // move target to panned location
-
-      if (scope.enableDamping === true) {
-        scope.target.addScaledVector(panOffset, scope.dampingFactor);
-      } else {
-        scope.target.add(panOffset);
-      }
-
-      offset.setFromSpherical(spherical); // rotate offset back to "camera-up-vector-is-up" space
-
-      offset.applyQuaternion(quatInverse);
-      position.copy(scope.target).add(offset);
-      scope.object.lookAt(scope.target);
-
-      if (scope.enableDamping === true) {
-        sphericalDelta.theta *= 1 - scope.dampingFactor;
-        sphericalDelta.phi *= 1 - scope.dampingFactor;
-        panOffset.multiplyScalar(1 - scope.dampingFactor);
-      } else {
-        sphericalDelta.set(0, 0, 0);
-        panOffset.set(0, 0, 0);
-      }
-
-      scale = 1; // update condition is:
-      // min(camera displacement, camera rotation in radians)^2 > EPS
-      // using small-angle approximation cos(x/2) = 1 - x^2 / 8
-
-      if (zoomChanged || lastPosition.distanceToSquared(scope.object.position) > EPS || 8 * (1 - lastQuaternion.dot(scope.object.quaternion)) > EPS) {
-        scope.dispatchEvent(changeEvent);
-        lastPosition.copy(scope.object.position);
-        lastQuaternion.copy(scope.object.quaternion);
-        zoomChanged = false;
-        return true;
-      }
-
-      return false;
-    };
-  }();
-
-  this.dispose = function () {
-    scope.domElement.removeEventListener('contextmenu', onContextMenu);
-    scope.domElement.removeEventListener('pointerdown', onPointerDown);
-    scope.domElement.removeEventListener('wheel', onMouseWheel);
-    scope.domElement.removeEventListener('touchstart', onTouchStart);
-    scope.domElement.removeEventListener('touchend', onTouchEnd);
-    scope.domElement.removeEventListener('touchmove', onTouchMove);
-    scope.domElement.ownerDocument.removeEventListener('pointermove', onPointerMove);
-    scope.domElement.ownerDocument.removeEventListener('pointerup', onPointerUp);
-
-    if (scope._domElementKeyEvents !== null) {
-      scope._domElementKeyEvents.removeEventListener('keydown', onKeyDown);
-    } //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?
-
-  }; //
-  // internals
-  //
-
-
-  var scope = this;
-  var changeEvent = {
-    type: 'change'
-  };
-  var startEvent = {
-    type: 'start'
-  };
-  var endEvent = {
-    type: 'end'
-  };
-  var STATE = {
-    NONE: -1,
-    ROTATE: 0,
-    DOLLY: 1,
-    PAN: 2,
-    TOUCH_ROTATE: 3,
-    TOUCH_PAN: 4,
-    TOUCH_DOLLY_PAN: 5,
-    TOUCH_DOLLY_ROTATE: 6
-  };
-  var state = STATE.NONE;
-  var EPS = 0.000001; // current position in spherical coordinates
-
-  var spherical = new _threeModule.Spherical();
-  var sphericalDelta = new _threeModule.Spherical();
-  var scale = 1;
-  var panOffset = new _threeModule.Vector3();
-  var zoomChanged = false;
-  var rotateStart = new _threeModule.Vector2();
-  var rotateEnd = new _threeModule.Vector2();
-  var rotateDelta = new _threeModule.Vector2();
-  var panStart = new _threeModule.Vector2();
-  var panEnd = new _threeModule.Vector2();
-  var panDelta = new _threeModule.Vector2();
-  var dollyStart = new _threeModule.Vector2();
-  var dollyEnd = new _threeModule.Vector2();
-  var dollyDelta = new _threeModule.Vector2();
-
-  function getAutoRotationAngle() {
-    return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;
-  }
-
-  function getZoomScale() {
-    return Math.pow(0.95, scope.zoomSpeed);
-  }
-
-  function rotateLeft(angle) {
-    sphericalDelta.theta -= angle;
-  }
-
-  function rotateUp(angle) {
-    sphericalDelta.phi -= angle;
-  }
-
-  var panLeft = function () {
-    var v = new _threeModule.Vector3();
-    return function panLeft(distance, objectMatrix) {
-      v.setFromMatrixColumn(objectMatrix, 0); // get X column of objectMatrix
-
-      v.multiplyScalar(-distance);
-      panOffset.add(v);
-    };
-  }();
-
-  var panUp = function () {
-    var v = new _threeModule.Vector3();
-    return function panUp(distance, objectMatrix) {
-      if (scope.screenSpacePanning === true) {
-        v.setFromMatrixColumn(objectMatrix, 1);
-      } else {
-        v.setFromMatrixColumn(objectMatrix, 0);
-        v.crossVectors(scope.object.up, v);
-      }
-
-      v.multiplyScalar(distance);
-      panOffset.add(v);
-    };
-  }(); // deltaX and deltaY are in pixels; right and down are positive
-
-
-  var pan = function () {
-    var offset = new _threeModule.Vector3();
-    return function pan(deltaX, deltaY) {
-      var element = scope.domElement;
-
-      if (scope.object.isPerspectiveCamera) {
-        // perspective
-        var position = scope.object.position;
-        offset.copy(position).sub(scope.target);
-        var targetDistance = offset.length(); // half of the fov is center to top of screen
-
-        targetDistance *= Math.tan(scope.object.fov / 2 * Math.PI / 180.0); // we use only clientHeight here so aspect ratio does not distort speed
-
-        panLeft(2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix);
-        panUp(2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix);
-      } else if (scope.object.isOrthographicCamera) {
-        // orthographic
-        panLeft(deltaX * (scope.object.right - scope.object.left) / scope.object.zoom / element.clientWidth, scope.object.matrix);
-        panUp(deltaY * (scope.object.top - scope.object.bottom) / scope.object.zoom / element.clientHeight, scope.object.matrix);
-      } else {
-        // camera neither orthographic nor perspective
-        console.warn('WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.');
-        scope.enablePan = false;
-      }
-    };
-  }();
-
-  function dollyOut(dollyScale) {
-    if (scope.object.isPerspectiveCamera) {
-      scale /= dollyScale;
-    } else if (scope.object.isOrthographicCamera) {
-      scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom * dollyScale));
-      scope.object.updateProjectionMatrix();
-      zoomChanged = true;
-    } else {
-      console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
-      scope.enableZoom = false;
-    }
-  }
-
-  function dollyIn(dollyScale) {
-    if (scope.object.isPerspectiveCamera) {
-      scale *= dollyScale;
-    } else if (scope.object.isOrthographicCamera) {
-      scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom / dollyScale));
-      scope.object.updateProjectionMatrix();
-      zoomChanged = true;
-    } else {
-      console.warn('WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.');
-      scope.enableZoom = false;
-    }
-  } //
-  // event callbacks - update the object state
-  //
-
-
-  function handleMouseDownRotate(event) {
-    rotateStart.set(event.clientX, event.clientY);
-  }
-
-  function handleMouseDownDolly(event) {
-    dollyStart.set(event.clientX, event.clientY);
-  }
-
-  function handleMouseDownPan(event) {
-    panStart.set(event.clientX, event.clientY);
-  }
-
-  function handleMouseMoveRotate(event) {
-    rotateEnd.set(event.clientX, event.clientY);
-    rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);
-    var element = scope.domElement;
-    rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height
-
-    rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);
-    rotateStart.copy(rotateEnd);
-    scope.update();
-  }
-
-  function handleMouseMoveDolly(event) {
-    dollyEnd.set(event.clientX, event.clientY);
-    dollyDelta.subVectors(dollyEnd, dollyStart);
-
-    if (dollyDelta.y > 0) {
-      dollyOut(getZoomScale());
-    } else if (dollyDelta.y < 0) {
-      dollyIn(getZoomScale());
-    }
-
-    dollyStart.copy(dollyEnd);
-    scope.update();
-  }
-
-  function handleMouseMovePan(event) {
-    panEnd.set(event.clientX, event.clientY);
-    panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);
-    pan(panDelta.x, panDelta.y);
-    panStart.copy(panEnd);
-    scope.update();
-  }
-
-  function handleMouseUp()
-  /*event*/
-  {// no-op
-  }
-
-  function handleMouseWheel(event) {
-    if (event.deltaY < 0) {
-      dollyIn(getZoomScale());
-    } else if (event.deltaY > 0) {
-      dollyOut(getZoomScale());
-    }
-
-    scope.update();
-  }
-
-  function handleKeyDown(event) {
-    var needsUpdate = false;
-
-    switch (event.keyCode) {
-      case scope.keys.UP:
-        pan(0, scope.keyPanSpeed);
-        needsUpdate = true;
-        break;
-
-      case scope.keys.BOTTOM:
-        pan(0, -scope.keyPanSpeed);
-        needsUpdate = true;
-        break;
-
-      case scope.keys.LEFT:
-        pan(scope.keyPanSpeed, 0);
-        needsUpdate = true;
-        break;
-
-      case scope.keys.RIGHT:
-        pan(-scope.keyPanSpeed, 0);
-        needsUpdate = true;
-        break;
-    }
-
-    if (needsUpdate) {
-      // prevent the browser from scrolling on cursor keys
-      event.preventDefault();
-      scope.update();
-    }
-  }
-
-  function handleTouchStartRotate(event) {
-    if (event.touches.length == 1) {
-      rotateStart.set(event.touches[0].pageX, event.touches[0].pageY);
-    } else {
-      var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
-      var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
-      rotateStart.set(x, y);
-    }
-  }
-
-  function handleTouchStartPan(event) {
-    if (event.touches.length == 1) {
-      panStart.set(event.touches[0].pageX, event.touches[0].pageY);
-    } else {
-      var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
-      var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
-      panStart.set(x, y);
-    }
-  }
-
-  function handleTouchStartDolly(event) {
-    var dx = event.touches[0].pageX - event.touches[1].pageX;
-    var dy = event.touches[0].pageY - event.touches[1].pageY;
-    var distance = Math.sqrt(dx * dx + dy * dy);
-    dollyStart.set(0, distance);
-  }
-
-  function handleTouchStartDollyPan(event) {
-    if (scope.enableZoom) handleTouchStartDolly(event);
-    if (scope.enablePan) handleTouchStartPan(event);
-  }
-
-  function handleTouchStartDollyRotate(event) {
-    if (scope.enableZoom) handleTouchStartDolly(event);
-    if (scope.enableRotate) handleTouchStartRotate(event);
-  }
-
-  function handleTouchMoveRotate(event) {
-    if (event.touches.length == 1) {
-      rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);
-    } else {
-      var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
-      var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
-      rotateEnd.set(x, y);
-    }
-
-    rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);
-    var element = scope.domElement;
-    rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height
-
-    rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);
-    rotateStart.copy(rotateEnd);
-  }
-
-  function handleTouchMovePan(event) {
-    if (event.touches.length == 1) {
-      panEnd.set(event.touches[0].pageX, event.touches[0].pageY);
-    } else {
-      var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
-      var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
-      panEnd.set(x, y);
-    }
-
-    panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);
-    pan(panDelta.x, panDelta.y);
-    panStart.copy(panEnd);
-  }
-
-  function handleTouchMoveDolly(event) {
-    var dx = event.touches[0].pageX - event.touches[1].pageX;
-    var dy = event.touches[0].pageY - event.touches[1].pageY;
-    var distance = Math.sqrt(dx * dx + dy * dy);
-    dollyEnd.set(0, distance);
-    dollyDelta.set(0, Math.pow(dollyEnd.y / dollyStart.y, scope.zoomSpeed));
-    dollyOut(dollyDelta.y);
-    dollyStart.copy(dollyEnd);
-  }
-
-  function handleTouchMoveDollyPan(event) {
-    if (scope.enableZoom) handleTouchMoveDolly(event);
-    if (scope.enablePan) handleTouchMovePan(event);
-  }
-
-  function handleTouchMoveDollyRotate(event) {
-    if (scope.enableZoom) handleTouchMoveDolly(event);
-    if (scope.enableRotate) handleTouchMoveRotate(event);
-  }
-
-  function handleTouchEnd()
-  /*event*/
-  {} // no-op
-  //
-  // event handlers - FSM: listen for events and reset state
-  //
-
-
-  function onPointerDown(event) {
-    if (scope.enabled === false) return;
-
-    switch (event.pointerType) {
-      case 'mouse':
-      case 'pen':
-        onMouseDown(event);
-        break;
-      // TODO touch
-    }
-  }
-
-  function onPointerMove(event) {
-    if (scope.enabled === false) return;
-
-    switch (event.pointerType) {
-      case 'mouse':
-      case 'pen':
-        onMouseMove(event);
-        break;
-      // TODO touch
-    }
-  }
-
-  function onPointerUp(event) {
-    switch (event.pointerType) {
-      case 'mouse':
-      case 'pen':
-        onMouseUp(event);
-        break;
-      // TODO touch
-    }
-  }
-
-  function onMouseDown(event) {
-    // Prevent the browser from scrolling.
-    event.preventDefault(); // Manually set the focus since calling preventDefault above
-    // prevents the browser from setting it automatically.
-
-    scope.domElement.focus ? scope.domElement.focus() : window.focus();
-    var mouseAction;
-
-    switch (event.button) {
-      case 0:
-        mouseAction = scope.mouseButtons.LEFT;
-        break;
-
-      case 1:
-        mouseAction = scope.mouseButtons.MIDDLE;
-        break;
-
-      case 2:
-        mouseAction = scope.mouseButtons.RIGHT;
-        break;
-
-      default:
-        mouseAction = -1;
-    }
-
-    switch (mouseAction) {
-      case _threeModule.MOUSE.DOLLY:
-        if (scope.enableZoom === false) return;
-        handleMouseDownDolly(event);
-        state = STATE.DOLLY;
-        break;
-
-      case _threeModule.MOUSE.ROTATE:
-        if (event.ctrlKey || event.metaKey || event.shiftKey) {
-          if (scope.enablePan === false) return;
-          handleMouseDownPan(event);
-          state = STATE.PAN;
-        } else {
-          if (scope.enableRotate === false) return;
-          handleMouseDownRotate(event);
-          state = STATE.ROTATE;
-        }
-
-        break;
-
-      case _threeModule.MOUSE.PAN:
-        if (event.ctrlKey || event.metaKey || event.shiftKey) {
-          if (scope.enableRotate === false) return;
-          handleMouseDownRotate(event);
-          state = STATE.ROTATE;
-        } else {
-          if (scope.enablePan === false) return;
-          handleMouseDownPan(event);
-          state = STATE.PAN;
-        }
-
-        break;
-
-      default:
-        state = STATE.NONE;
-    }
-
-    if (state !== STATE.NONE) {
-      scope.domElement.ownerDocument.addEventListener('pointermove', onPointerMove);
-      scope.domElement.ownerDocument.addEventListener('pointerup', onPointerUp);
-      scope.dispatchEvent(startEvent);
-    }
-  }
-
-  function onMouseMove(event) {
-    if (scope.enabled === false) return;
-    event.preventDefault();
-
-    switch (state) {
-      case STATE.ROTATE:
-        if (scope.enableRotate === false) return;
-        handleMouseMoveRotate(event);
-        break;
-
-      case STATE.DOLLY:
-        if (scope.enableZoom === false) return;
-        handleMouseMoveDolly(event);
-        break;
-
-      case STATE.PAN:
-        if (scope.enablePan === false) return;
-        handleMouseMovePan(event);
-        break;
-    }
-  }
-
-  function onMouseUp(event) {
-    scope.domElement.ownerDocument.removeEventListener('pointermove', onPointerMove);
-    scope.domElement.ownerDocument.removeEventListener('pointerup', onPointerUp);
-    if (scope.enabled === false) return;
-    handleMouseUp(event);
-    scope.dispatchEvent(endEvent);
-    state = STATE.NONE;
-  }
-
-  function onMouseWheel(event) {
-    if (scope.enabled === false || scope.enableZoom === false || state !== STATE.NONE && state !== STATE.ROTATE) return;
-    event.preventDefault();
-    event.stopPropagation();
-    scope.dispatchEvent(startEvent);
-    handleMouseWheel(event);
-    scope.dispatchEvent(endEvent);
-  }
-
-  function onKeyDown(event) {
-    if (scope.enabled === false || scope.enablePan === false) return;
-    handleKeyDown(event);
-  }
-
-  function onTouchStart(event) {
-    if (scope.enabled === false) return;
-    event.preventDefault(); // prevent scrolling
-
-    switch (event.touches.length) {
-      case 1:
-        switch (scope.touches.ONE) {
-          case _threeModule.TOUCH.ROTATE:
-            if (scope.enableRotate === false) return;
-            handleTouchStartRotate(event);
-            state = STATE.TOUCH_ROTATE;
-            break;
-
-          case _threeModule.TOUCH.PAN:
-            if (scope.enablePan === false) return;
-            handleTouchStartPan(event);
-            state = STATE.TOUCH_PAN;
-            break;
-
-          default:
-            state = STATE.NONE;
-        }
-
-        break;
-
-      case 2:
-        switch (scope.touches.TWO) {
-          case _threeModule.TOUCH.DOLLY_PAN:
-            if (scope.enableZoom === false && scope.enablePan === false) return;
-            handleTouchStartDollyPan(event);
-            state = STATE.TOUCH_DOLLY_PAN;
-            break;
-
-          case _threeModule.TOUCH.DOLLY_ROTATE:
-            if (scope.enableZoom === false && scope.enableRotate === false) return;
-            handleTouchStartDollyRotate(event);
-            state = STATE.TOUCH_DOLLY_ROTATE;
-            break;
-
-          default:
-            state = STATE.NONE;
-        }
-
-        break;
-
-      default:
-        state = STATE.NONE;
-    }
-
-    if (state !== STATE.NONE) {
-      scope.dispatchEvent(startEvent);
-    }
-  }
-
-  function onTouchMove(event) {
-    if (scope.enabled === false) return;
-    event.preventDefault(); // prevent scrolling
-
-    event.stopPropagation();
-
-    switch (state) {
-      case STATE.TOUCH_ROTATE:
-        if (scope.enableRotate === false) return;
-        handleTouchMoveRotate(event);
-        scope.update();
-        break;
-
-      case STATE.TOUCH_PAN:
-        if (scope.enablePan === false) return;
-        handleTouchMovePan(event);
-        scope.update();
-        break;
-
-      case STATE.TOUCH_DOLLY_PAN:
-        if (scope.enableZoom === false && scope.enablePan === false) return;
-        handleTouchMoveDollyPan(event);
-        scope.update();
-        break;
-
-      case STATE.TOUCH_DOLLY_ROTATE:
-        if (scope.enableZoom === false && scope.enableRotate === false) return;
-        handleTouchMoveDollyRotate(event);
-        scope.update();
-        break;
-
-      default:
-        state = STATE.NONE;
-    }
-  }
-
-  function onTouchEnd(event) {
-    if (scope.enabled === false) return;
-    handleTouchEnd(event);
-    scope.dispatchEvent(endEvent);
-    state = STATE.NONE;
-  }
-
-  function onContextMenu(event) {
-    if (scope.enabled === false) return;
-    event.preventDefault();
-  } //
-
-
-  scope.domElement.addEventListener('contextmenu', onContextMenu);
-  scope.domElement.addEventListener('pointerdown', onPointerDown);
-  scope.domElement.addEventListener('wheel', onMouseWheel);
-  scope.domElement.addEventListener('touchstart', onTouchStart);
-  scope.domElement.addEventListener('touchend', onTouchEnd);
-  scope.domElement.addEventListener('touchmove', onTouchMove); // force an update at start
-
-  this.update();
-};
-
-exports.OrbitControls = OrbitControls;
-OrbitControls.prototype = Object.create(_threeModule.EventDispatcher.prototype);
-OrbitControls.prototype.constructor = OrbitControls; // This set of controls performs orbiting, dollying (zooming), and panning.
-// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default).
-// This is very similar to OrbitControls, another set of touch behavior
-//
-//    Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate
-//    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
-//    Pan - left mouse, or arrow keys / touch: one-finger move
-
-var MapControls = function (object, domElement) {
-  OrbitControls.call(this, object, domElement);
-  this.screenSpacePanning = false; // pan orthogonal to world-space direction camera.up
-
-  this.mouseButtons.LEFT = _threeModule.MOUSE.PAN;
-  this.mouseButtons.RIGHT = _threeModule.MOUSE.ROTATE;
-  this.touches.ONE = _threeModule.TOUCH.PAN;
-  this.touches.TWO = _threeModule.TOUCH.DOLLY_ROTATE;
-};
-
-exports.MapControls = MapControls;
-MapControls.prototype = Object.create(_threeModule.EventDispatcher.prototype);
-MapControls.prototype.constructor = MapControls;
-},{"../../../build/three.module.js":"../node_modules/three/build/three.module.js"}],"../node_modules/three/examples/jsm/utils/BufferGeometryUtils.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.BufferGeometryUtils = void 0;
-
-var _threeModule = require("../../../build/three.module.js");
-
-var BufferGeometryUtils = {
-  computeTangents: function (geometry) {
-    geometry.computeTangents();
-    console.warn('THREE.BufferGeometryUtils: .computeTangents() has been removed. Use BufferGeometry.computeTangents() instead.');
-  },
-
-  /**
-   * @param  {Array<BufferGeometry>} geometries
-   * @param  {Boolean} useGroups
-   * @return {BufferGeometry}
-   */
-  mergeBufferGeometries: function (geometries, useGroups) {
-    var isIndexed = geometries[0].index !== null;
-    var attributesUsed = new Set(Object.keys(geometries[0].attributes));
-    var morphAttributesUsed = new Set(Object.keys(geometries[0].morphAttributes));
-    var attributes = {};
-    var morphAttributes = {};
-    var morphTargetsRelative = geometries[0].morphTargetsRelative;
-    var mergedGeometry = new _threeModule.BufferGeometry();
-    var offset = 0;
-
-    for (var i = 0; i < geometries.length; ++i) {
-      var geometry = geometries[i];
-      var attributesCount = 0; // ensure that all geometries are indexed, or none
-
-      if (isIndexed !== (geometry.index !== null)) {
-        console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. All geometries must have compatible attributes; make sure index attribute exists among all geometries, or in none of them.');
-        return null;
-      } // gather attributes, exit early if they're different
-
-
-      for (var name in geometry.attributes) {
-        if (!attributesUsed.has(name)) {
-          console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. All geometries must have compatible attributes; make sure "' + name + '" attribute exists among all geometries, or in none of them.');
-          return null;
-        }
-
-        if (attributes[name] === undefined) attributes[name] = [];
-        attributes[name].push(geometry.attributes[name]);
-        attributesCount++;
-      } // ensure geometries have the same number of attributes
-
-
-      if (attributesCount !== attributesUsed.size) {
-        console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. Make sure all geometries have the same number of attributes.');
-        return null;
-      } // gather morph attributes, exit early if they're different
-
-
-      if (morphTargetsRelative !== geometry.morphTargetsRelative) {
-        console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. .morphTargetsRelative must be consistent throughout all geometries.');
-        return null;
-      }
-
-      for (var name in geometry.morphAttributes) {
-        if (!morphAttributesUsed.has(name)) {
-          console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '.  .morphAttributes must be consistent throughout all geometries.');
-          return null;
-        }
-
-        if (morphAttributes[name] === undefined) morphAttributes[name] = [];
-        morphAttributes[name].push(geometry.morphAttributes[name]);
-      } // gather .userData
-
-
-      mergedGeometry.userData.mergedUserData = mergedGeometry.userData.mergedUserData || [];
-      mergedGeometry.userData.mergedUserData.push(geometry.userData);
-
-      if (useGroups) {
-        var count;
-
-        if (isIndexed) {
-          count = geometry.index.count;
-        } else if (geometry.attributes.position !== undefined) {
-          count = geometry.attributes.position.count;
-        } else {
-          console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. The geometry must have either an index or a position attribute');
-          return null;
-        }
-
-        mergedGeometry.addGroup(offset, count, i);
-        offset += count;
-      }
-    } // merge indices
-
-
-    if (isIndexed) {
-      var indexOffset = 0;
-      var mergedIndex = [];
-
-      for (var i = 0; i < geometries.length; ++i) {
-        var index = geometries[i].index;
-
-        for (var j = 0; j < index.count; ++j) {
-          mergedIndex.push(index.getX(j) + indexOffset);
-        }
-
-        indexOffset += geometries[i].attributes.position.count;
-      }
-
-      mergedGeometry.setIndex(mergedIndex);
-    } // merge attributes
-
-
-    for (var name in attributes) {
-      var mergedAttribute = this.mergeBufferAttributes(attributes[name]);
-
-      if (!mergedAttribute) {
-        console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the ' + name + ' attribute.');
-        return null;
-      }
-
-      mergedGeometry.setAttribute(name, mergedAttribute);
-    } // merge morph attributes
-
-
-    for (var name in morphAttributes) {
-      var numMorphTargets = morphAttributes[name][0].length;
-      if (numMorphTargets === 0) break;
-      mergedGeometry.morphAttributes = mergedGeometry.morphAttributes || {};
-      mergedGeometry.morphAttributes[name] = [];
-
-      for (var i = 0; i < numMorphTargets; ++i) {
-        var morphAttributesToMerge = [];
-
-        for (var j = 0; j < morphAttributes[name].length; ++j) {
-          morphAttributesToMerge.push(morphAttributes[name][j][i]);
-        }
-
-        var mergedMorphAttribute = this.mergeBufferAttributes(morphAttributesToMerge);
-
-        if (!mergedMorphAttribute) {
-          console.error('THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the ' + name + ' morphAttribute.');
-          return null;
-        }
-
-        mergedGeometry.morphAttributes[name].push(mergedMorphAttribute);
-      }
-    }
-
-    return mergedGeometry;
-  },
-
-  /**
-   * @param {Array<BufferAttribute>} attributes
-   * @return {BufferAttribute}
-   */
-  mergeBufferAttributes: function (attributes) {
-    var TypedArray;
-    var itemSize;
-    var normalized;
-    var arrayLength = 0;
-
-    for (var i = 0; i < attributes.length; ++i) {
-      var attribute = attributes[i];
-
-      if (attribute.isInterleavedBufferAttribute) {
-        console.error('THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. InterleavedBufferAttributes are not supported.');
-        return null;
-      }
-
-      if (TypedArray === undefined) TypedArray = attribute.array.constructor;
-
-      if (TypedArray !== attribute.array.constructor) {
-        console.error('THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.array must be of consistent array types across matching attributes.');
-        return null;
-      }
-
-      if (itemSize === undefined) itemSize = attribute.itemSize;
-
-      if (itemSize !== attribute.itemSize) {
-        console.error('THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.itemSize must be consistent across matching attributes.');
-        return null;
-      }
-
-      if (normalized === undefined) normalized = attribute.normalized;
-
-      if (normalized !== attribute.normalized) {
-        console.error('THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.normalized must be consistent across matching attributes.');
-        return null;
-      }
-
-      arrayLength += attribute.array.length;
-    }
-
-    var array = new TypedArray(arrayLength);
-    var offset = 0;
-
-    for (var i = 0; i < attributes.length; ++i) {
-      array.set(attributes[i].array, offset);
-      offset += attributes[i].array.length;
-    }
-
-    return new _threeModule.BufferAttribute(array, itemSize, normalized);
-  },
-
-  /**
-   * @param {Array<BufferAttribute>} attributes
-   * @return {Array<InterleavedBufferAttribute>}
-   */
-  interleaveAttributes: function (attributes) {
-    // Interleaves the provided attributes into an InterleavedBuffer and returns
-    // a set of InterleavedBufferAttributes for each attribute
-    var TypedArray;
-    var arrayLength = 0;
-    var stride = 0; // calculate the the length and type of the interleavedBuffer
-
-    for (var i = 0, l = attributes.length; i < l; ++i) {
-      var attribute = attributes[i];
-      if (TypedArray === undefined) TypedArray = attribute.array.constructor;
-
-      if (TypedArray !== attribute.array.constructor) {
-        console.error('AttributeBuffers of different types cannot be interleaved');
-        return null;
-      }
-
-      arrayLength += attribute.array.length;
-      stride += attribute.itemSize;
-    } // Create the set of buffer attributes
-
-
-    var interleavedBuffer = new _threeModule.InterleavedBuffer(new TypedArray(arrayLength), stride);
-    var offset = 0;
-    var res = [];
-    var getters = ['getX', 'getY', 'getZ', 'getW'];
-    var setters = ['setX', 'setY', 'setZ', 'setW'];
-
-    for (var j = 0, l = attributes.length; j < l; j++) {
-      var attribute = attributes[j];
-      var itemSize = attribute.itemSize;
-      var count = attribute.count;
-      var iba = new _threeModule.InterleavedBufferAttribute(interleavedBuffer, itemSize, offset, attribute.normalized);
-      res.push(iba);
-      offset += itemSize; // Move the data for each attribute into the new interleavedBuffer
-      // at the appropriate offset
-
-      for (var c = 0; c < count; c++) {
-        for (var k = 0; k < itemSize; k++) {
-          iba[setters[k]](c, attribute[getters[k]](c));
-        }
-      }
-    }
-
-    return res;
-  },
-
-  /**
-   * @param {Array<BufferGeometry>} geometry
-   * @return {number}
-   */
-  estimateBytesUsed: function (geometry) {
-    // Return the estimated memory used by this geometry in bytes
-    // Calculate using itemSize, count, and BYTES_PER_ELEMENT to account
-    // for InterleavedBufferAttributes.
-    var mem = 0;
-
-    for (var name in geometry.attributes) {
-      var attr = geometry.getAttribute(name);
-      mem += attr.count * attr.itemSize * attr.array.BYTES_PER_ELEMENT;
-    }
-
-    var indices = geometry.getIndex();
-    mem += indices ? indices.count * indices.itemSize * indices.array.BYTES_PER_ELEMENT : 0;
-    return mem;
-  },
-
-  /**
-   * @param {BufferGeometry} geometry
-   * @param {number} tolerance
-   * @return {BufferGeometry>}
-   */
-  mergeVertices: function (geometry, tolerance = 1e-4) {
-    tolerance = Math.max(tolerance, Number.EPSILON); // Generate an index buffer if the geometry doesn't have one, or optimize it
-    // if it's already available.
-
-    var hashToIndex = {};
-    var indices = geometry.getIndex();
-    var positions = geometry.getAttribute('position');
-    var vertexCount = indices ? indices.count : positions.count; // next value for triangle indices
-
-    var nextIndex = 0; // attributes and new attribute arrays
-
-    var attributeNames = Object.keys(geometry.attributes);
-    var attrArrays = {};
-    var morphAttrsArrays = {};
-    var newIndices = [];
-    var getters = ['getX', 'getY', 'getZ', 'getW']; // initialize the arrays
-
-    for (var i = 0, l = attributeNames.length; i < l; i++) {
-      var name = attributeNames[i];
-      attrArrays[name] = [];
-      var morphAttr = geometry.morphAttributes[name];
-
-      if (morphAttr) {
-        morphAttrsArrays[name] = new Array(morphAttr.length).fill().map(() => []);
-      }
-    } // convert the error tolerance to an amount of decimal places to truncate to
-
-
-    var decimalShift = Math.log10(1 / tolerance);
-    var shiftMultiplier = Math.pow(10, decimalShift);
-
-    for (var i = 0; i < vertexCount; i++) {
-      var index = indices ? indices.getX(i) : i; // Generate a hash for the vertex attributes at the current index 'i'
-
-      var hash = '';
-
-      for (var j = 0, l = attributeNames.length; j < l; j++) {
-        var name = attributeNames[j];
-        var attribute = geometry.getAttribute(name);
-        var itemSize = attribute.itemSize;
-
-        for (var k = 0; k < itemSize; k++) {
-          // double tilde truncates the decimal value
-          hash += `${~~(attribute[getters[k]](index) * shiftMultiplier)},`;
-        }
-      } // Add another reference to the vertex if it's already
-      // used by another index
-
-
-      if (hash in hashToIndex) {
-        newIndices.push(hashToIndex[hash]);
-      } else {
-        // copy data to the new index in the attribute arrays
-        for (var j = 0, l = attributeNames.length; j < l; j++) {
-          var name = attributeNames[j];
-          var attribute = geometry.getAttribute(name);
-          var morphAttr = geometry.morphAttributes[name];
-          var itemSize = attribute.itemSize;
-          var newarray = attrArrays[name];
-          var newMorphArrays = morphAttrsArrays[name];
-
-          for (var k = 0; k < itemSize; k++) {
-            var getterFunc = getters[k];
-            newarray.push(attribute[getterFunc](index));
-
-            if (morphAttr) {
-              for (var m = 0, ml = morphAttr.length; m < ml; m++) {
-                newMorphArrays[m].push(morphAttr[m][getterFunc](index));
-              }
-            }
-          }
-        }
-
-        hashToIndex[hash] = nextIndex;
-        newIndices.push(nextIndex);
-        nextIndex++;
-      }
-    } // Generate typed arrays from new attribute arrays and update
-    // the attributeBuffers
-
-
-    const result = geometry.clone();
-
-    for (var i = 0, l = attributeNames.length; i < l; i++) {
-      var name = attributeNames[i];
-      var oldAttribute = geometry.getAttribute(name);
-      var buffer = new oldAttribute.array.constructor(attrArrays[name]);
-      var attribute = new _threeModule.BufferAttribute(buffer, oldAttribute.itemSize, oldAttribute.normalized);
-      result.setAttribute(name, attribute); // Update the attribute arrays
-
-      if (name in morphAttrsArrays) {
-        for (var j = 0; j < morphAttrsArrays[name].length; j++) {
-          var oldMorphAttribute = geometry.morphAttributes[name][j];
-          var buffer = new oldMorphAttribute.array.constructor(morphAttrsArrays[name][j]);
-          var morphAttribute = new _threeModule.BufferAttribute(buffer, oldMorphAttribute.itemSize, oldMorphAttribute.normalized);
-          result.morphAttributes[name][j] = morphAttribute;
-        }
-      }
-    } // indices
-
-
-    result.setIndex(newIndices);
-    return result;
-  },
-
-  /**
-   * @param {BufferGeometry} geometry
-   * @param {number} drawMode
-   * @return {BufferGeometry>}
-   */
-  toTrianglesDrawMode: function (geometry, drawMode) {
-    if (drawMode === _threeModule.TrianglesDrawMode) {
-      console.warn('THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles.');
-      return geometry;
-    }
-
-    if (drawMode === _threeModule.TriangleFanDrawMode || drawMode === _threeModule.TriangleStripDrawMode) {
-      var index = geometry.getIndex(); // generate index if not present
-
-      if (index === null) {
-        var indices = [];
-        var position = geometry.getAttribute('position');
-
-        if (position !== undefined) {
-          for (var i = 0; i < position.count; i++) {
-            indices.push(i);
-          }
-
-          geometry.setIndex(indices);
-          index = geometry.getIndex();
-        } else {
-          console.error('THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. Processing not possible.');
-          return geometry;
-        }
-      } //
-
-
-      var numberOfTriangles = index.count - 2;
-      var newIndices = [];
-
-      if (drawMode === _threeModule.TriangleFanDrawMode) {
-        // gl.TRIANGLE_FAN
-        for (var i = 1; i <= numberOfTriangles; i++) {
-          newIndices.push(index.getX(0));
-          newIndices.push(index.getX(i));
-          newIndices.push(index.getX(i + 1));
-        }
-      } else {
-        // gl.TRIANGLE_STRIP
-        for (var i = 0; i < numberOfTriangles; i++) {
-          if (i % 2 === 0) {
-            newIndices.push(index.getX(i));
-            newIndices.push(index.getX(i + 1));
-            newIndices.push(index.getX(i + 2));
-          } else {
-            newIndices.push(index.getX(i + 2));
-            newIndices.push(index.getX(i + 1));
-            newIndices.push(index.getX(i));
-          }
-        }
-      }
-
-      if (newIndices.length / 3 !== numberOfTriangles) {
-        console.error('THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unable to generate correct amount of triangles.');
-      } // build final geometry
-
-
-      var newGeometry = geometry.clone();
-      newGeometry.setIndex(newIndices);
-      newGeometry.clearGroups();
-      return newGeometry;
-    } else {
-      console.error('THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unknown draw mode:', drawMode);
-      return geometry;
-    }
-  },
-
-  /**
-   * Calculates the morphed attributes of a morphed/skinned BufferGeometry.
-   * Helpful for Raytracing or Decals.
-   * @param {Mesh | Line | Points} object An instance of Mesh, Line or Points.
-   * @return {Object} An Object with original position/normal attributes and morphed ones.
-   */
-  computeMorphedAttributes: function (object) {
-    if (object.geometry.isBufferGeometry !== true) {
-      console.error('THREE.BufferGeometryUtils: Geometry is not of type BufferGeometry.');
-      return null;
-    }
-
-    var _vA = new _threeModule.Vector3();
-
-    var _vB = new _threeModule.Vector3();
-
-    var _vC = new _threeModule.Vector3();
-
-    var _tempA = new _threeModule.Vector3();
-
-    var _tempB = new _threeModule.Vector3();
-
-    var _tempC = new _threeModule.Vector3();
-
-    var _morphA = new _threeModule.Vector3();
-
-    var _morphB = new _threeModule.Vector3();
-
-    var _morphC = new _threeModule.Vector3();
-
-    function _calculateMorphedAttributeData(object, material, attribute, morphAttribute, morphTargetsRelative, a, b, c, modifiedAttributeArray) {
-      _vA.fromBufferAttribute(attribute, a);
-
-      _vB.fromBufferAttribute(attribute, b);
-
-      _vC.fromBufferAttribute(attribute, c);
-
-      var morphInfluences = object.morphTargetInfluences;
-
-      if (material.morphTargets && morphAttribute && morphInfluences) {
-        _morphA.set(0, 0, 0);
-
-        _morphB.set(0, 0, 0);
-
-        _morphC.set(0, 0, 0);
-
-        for (var i = 0, il = morphAttribute.length; i < il; i++) {
-          var influence = morphInfluences[i];
-          var morph = morphAttribute[i];
-          if (influence === 0) continue;
-
-          _tempA.fromBufferAttribute(morph, a);
-
-          _tempB.fromBufferAttribute(morph, b);
-
-          _tempC.fromBufferAttribute(morph, c);
-
-          if (morphTargetsRelative) {
-            _morphA.addScaledVector(_tempA, influence);
-
-            _morphB.addScaledVector(_tempB, influence);
-
-            _morphC.addScaledVector(_tempC, influence);
-          } else {
-            _morphA.addScaledVector(_tempA.sub(_vA), influence);
-
-            _morphB.addScaledVector(_tempB.sub(_vB), influence);
-
-            _morphC.addScaledVector(_tempC.sub(_vC), influence);
-          }
-        }
-
-        _vA.add(_morphA);
-
-        _vB.add(_morphB);
-
-        _vC.add(_morphC);
-      }
-
-      if (object.isSkinnedMesh) {
-        object.boneTransform(a, _vA);
-        object.boneTransform(b, _vB);
-        object.boneTransform(c, _vC);
-      }
-
-      modifiedAttributeArray[a * 3 + 0] = _vA.x;
-      modifiedAttributeArray[a * 3 + 1] = _vA.y;
-      modifiedAttributeArray[a * 3 + 2] = _vA.z;
-      modifiedAttributeArray[b * 3 + 0] = _vB.x;
-      modifiedAttributeArray[b * 3 + 1] = _vB.y;
-      modifiedAttributeArray[b * 3 + 2] = _vB.z;
-      modifiedAttributeArray[c * 3 + 0] = _vC.x;
-      modifiedAttributeArray[c * 3 + 1] = _vC.y;
-      modifiedAttributeArray[c * 3 + 2] = _vC.z;
-    }
-
-    var geometry = object.geometry;
-    var material = object.material;
-    var a, b, c;
-    var index = geometry.index;
-    var positionAttribute = geometry.attributes.position;
-    var morphPosition = geometry.morphAttributes.position;
-    var morphTargetsRelative = geometry.morphTargetsRelative;
-    var normalAttribute = geometry.attributes.normal;
-    var morphNormal = geometry.morphAttributes.position;
-    var groups = geometry.groups;
-    var drawRange = geometry.drawRange;
-    var i, j, il, jl;
-    var group, groupMaterial;
-    var start, end;
-    var modifiedPosition = new Float32Array(positionAttribute.count * positionAttribute.itemSize);
-    var modifiedNormal = new Float32Array(normalAttribute.count * normalAttribute.itemSize);
-
-    if (index !== null) {
-      // indexed buffer geometry
-      if (Array.isArray(material)) {
-        for (i = 0, il = groups.length; i < il; i++) {
-          group = groups[i];
-          groupMaterial = material[group.materialIndex];
-          start = Math.max(group.start, drawRange.start);
-          end = Math.min(group.start + group.count, drawRange.start + drawRange.count);
-
-          for (j = start, jl = end; j < jl; j += 3) {
-            a = index.getX(j);
-            b = index.getX(j + 1);
-            c = index.getX(j + 2);
-
-            _calculateMorphedAttributeData(object, groupMaterial, positionAttribute, morphPosition, morphTargetsRelative, a, b, c, modifiedPosition);
-
-            _calculateMorphedAttributeData(object, groupMaterial, normalAttribute, morphNormal, morphTargetsRelative, a, b, c, modifiedNormal);
-          }
-        }
-      } else {
-        start = Math.max(0, drawRange.start);
-        end = Math.min(index.count, drawRange.start + drawRange.count);
-
-        for (i = start, il = end; i < il; i += 3) {
-          a = index.getX(i);
-          b = index.getX(i + 1);
-          c = index.getX(i + 2);
-
-          _calculateMorphedAttributeData(object, material, positionAttribute, morphPosition, morphTargetsRelative, a, b, c, modifiedPosition);
-
-          _calculateMorphedAttributeData(object, material, normalAttribute, morphNormal, morphTargetsRelative, a, b, c, modifiedNormal);
-        }
-      }
-    } else if (positionAttribute !== undefined) {
-      // non-indexed buffer geometry
-      if (Array.isArray(material)) {
-        for (i = 0, il = groups.length; i < il; i++) {
-          group = groups[i];
-          groupMaterial = material[group.materialIndex];
-          start = Math.max(group.start, drawRange.start);
-          end = Math.min(group.start + group.count, drawRange.start + drawRange.count);
-
-          for (j = start, jl = end; j < jl; j += 3) {
-            a = j;
-            b = j + 1;
-            c = j + 2;
-
-            _calculateMorphedAttributeData(object, groupMaterial, positionAttribute, morphPosition, morphTargetsRelative, a, b, c, modifiedPosition);
-
-            _calculateMorphedAttributeData(object, groupMaterial, normalAttribute, morphNormal, morphTargetsRelative, a, b, c, modifiedNormal);
-          }
-        }
-      } else {
-        start = Math.max(0, drawRange.start);
-        end = Math.min(positionAttribute.count, drawRange.start + drawRange.count);
-
-        for (i = start, il = end; i < il; i += 3) {
-          a = i;
-          b = i + 1;
-          c = i + 2;
-
-          _calculateMorphedAttributeData(object, material, positionAttribute, morphPosition, morphTargetsRelative, a, b, c, modifiedPosition);
-
-          _calculateMorphedAttributeData(object, material, normalAttribute, morphNormal, morphTargetsRelative, a, b, c, modifiedNormal);
-        }
-      }
-    }
-
-    var morphedPositionAttribute = new _threeModule.Float32BufferAttribute(modifiedPosition, 3);
-    var morphedNormalAttribute = new _threeModule.Float32BufferAttribute(modifiedNormal, 3);
-    return {
-      positionAttribute: positionAttribute,
-      normalAttribute: normalAttribute,
-      morphedPositionAttribute: morphedPositionAttribute,
-      morphedNormalAttribute: morphedNormalAttribute
-    };
-  }
-};
-exports.BufferGeometryUtils = BufferGeometryUtils;
-},{"../../../build/three.module.js":"../node_modules/three/build/three.module.js"}],"../src/Constants.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.CONTAINED = exports.INTERSECTED = exports.NOT_INTERSECTED = exports.SAH = exports.AVERAGE = exports.CENTER = void 0;
-// Split strategy constants
-var CENTER = 0;
-exports.CENTER = CENTER;
-var AVERAGE = 1;
-exports.AVERAGE = AVERAGE;
-var SAH = 2;
-exports.SAH = SAH;
-var NOT_INTERSECTED = 0;
-exports.NOT_INTERSECTED = NOT_INTERSECTED;
-var INTERSECTED = 1;
-exports.INTERSECTED = INTERSECTED;
-var CONTAINED = 2;
-exports.CONTAINED = CONTAINED;
-},{}],"../src/MeshBVHNode.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var MeshBVHNode = function MeshBVHNode() {// internal nodes have boundingData, left, right, and splitAxis
-  // leaf nodes have offset and count (referring to primitives in the mesh geometry)
-
-  _classCallCheck(this, MeshBVHNode);
-};
-
-exports.default = MeshBVHNode;
-},{}],"../src/Utils/ArrayBoxUtilities.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.boxToArray = boxToArray;
-exports.arrayToBox = arrayToBox;
-exports.getLongestEdgeIndex = getLongestEdgeIndex;
-
-// Returns a Float32Array representing the bounds data for box.
-function boxToArray(bx) {
-  var arr = new Float32Array(6);
-  arr[0] = bx.min.x;
-  arr[1] = bx.min.y;
-  arr[2] = bx.min.z;
-  arr[3] = bx.max.x;
-  arr[4] = bx.max.y;
-  arr[5] = bx.max.z;
-  return arr;
-}
-
-function arrayToBox(arr, target) {
-  target.min.x = arr[0];
-  target.min.y = arr[1];
-  target.min.z = arr[2];
-  target.max.x = arr[3];
-  target.max.y = arr[4];
-  target.max.z = arr[5];
-  return target;
-}
-
-function getLongestEdgeIndex(bounds) {
-  var splitDimIdx = -1;
-  var splitDist = -Infinity;
-
-  for (var i = 0; i < 3; i++) {
-    var dist = bounds[i + 3] - bounds[i];
-
-    if (dist > splitDist) {
-      splitDist = dist;
-      splitDimIdx = i;
-    }
-  }
-
-  return splitDimIdx;
-}
-},{}],"../src/buildFunctions.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.buildTree = buildTree;
-exports.buildPackedTree = buildPackedTree;
-exports.IS_LEAFNODE_FLAG = exports.BYTES_PER_NODE = void 0;
-
-var _three = require("three");
-
-var _MeshBVHNode = _interopRequireDefault(require("./MeshBVHNode.js"));
-
-var _ArrayBoxUtilities = require("./Utils/ArrayBoxUtilities.js");
-
-var _Constants = require("./Constants.js");
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
-
-function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
-
-function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
-
-// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics
-var FLOAT32_EPSILON = Math.pow(2, -24);
-var xyzFields = ['x', 'y', 'z'];
-var boxTemp = new _three.Box3();
-
-function ensureIndex(geo) {
-  if (!geo.index) {
-    var vertexCount = geo.attributes.position.count;
-    var index = new (vertexCount > 65535 ? Uint32Array : Uint16Array)(vertexCount);
-    geo.setIndex(new _three.BufferAttribute(index, 1));
-
-    for (var i = 0; i < vertexCount; i++) {
-      index[i] = i;
-    }
-  }
-} // Computes the set of { offset, count } ranges which need independent BVH roots. Each
-// region in the geometry index that belongs to a different set of material groups requires
-// a separate BVH root, so that triangles indices belonging to one group never get swapped
-// with triangle indices belongs to another group. For example, if the groups were like this:
-//
-// [-------------------------------------------------------------]
-// |__________________|
-//   g0 = [0, 20]  |______________________||_____________________|
-//                      g1 = [16, 40]           g2 = [41, 60]
-//
-// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].
-
-
-function getRootIndexRanges(geo) {
-  if (!geo.groups || !geo.groups.length) {
-    return [{
-      offset: 0,
-      count: geo.index.count / 3
-    }];
-  }
-
-  var ranges = [];
-  var rangeBoundaries = new Set();
-
-  var _iterator = _createForOfIteratorHelper(geo.groups),
-      _step;
-
-  try {
-    for (_iterator.s(); !(_step = _iterator.n()).done;) {
-      var group = _step.value;
-      rangeBoundaries.add(group.start);
-      rangeBoundaries.add(group.start + group.count);
-    } // note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(
-
-  } catch (err) {
-    _iterator.e(err);
-  } finally {
-    _iterator.f();
-  }
-
-  var sortedBoundaries = Array.from(rangeBoundaries.values()).sort(function (a, b) {
-    return a - b;
-  });
-
-  for (var i = 0; i < sortedBoundaries.length - 1; i++) {
-    var start = sortedBoundaries[i],
-        end = sortedBoundaries[i + 1];
-    ranges.push({
-      offset: start / 3,
-      count: (end - start) / 3
-    });
-  }
-
-  return ranges;
-} // computes the union of the bounds of all of the given triangles and puts the resulting box in target. If
-// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.
-// These are computed together to avoid redundant accesses to bounds array.
-
-
-function getBounds(triangleBounds, offset, count, target) {
-  var centroidTarget = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : null;
-  var minx = Infinity;
-  var miny = Infinity;
-  var minz = Infinity;
-  var maxx = -Infinity;
-  var maxy = -Infinity;
-  var maxz = -Infinity;
-  var cminx = Infinity;
-  var cminy = Infinity;
-  var cminz = Infinity;
-  var cmaxx = -Infinity;
-  var cmaxy = -Infinity;
-  var cmaxz = -Infinity;
-  var includeCentroid = centroidTarget !== null;
-
-  for (var i = offset * 6, end = (offset + count) * 6; i < end; i += 6) {
-    var cx = triangleBounds[i + 0];
-    var hx = triangleBounds[i + 1];
-    var lx = cx - hx;
-    var rx = cx + hx;
-    if (lx < minx) minx = lx;
-    if (rx > maxx) maxx = rx;
-    if (includeCentroid && cx < cminx) cminx = cx;
-    if (includeCentroid && cx > cmaxx) cmaxx = cx;
-    var cy = triangleBounds[i + 2];
-    var hy = triangleBounds[i + 3];
-    var ly = cy - hy;
-    var ry = cy + hy;
-    if (ly < miny) miny = ly;
-    if (ry > maxy) maxy = ry;
-    if (includeCentroid && cy < cminy) cminy = cy;
-    if (includeCentroid && cy > cmaxy) cmaxy = cy;
-    var cz = triangleBounds[i + 4];
-    var hz = triangleBounds[i + 5];
-    var lz = cz - hz;
-    var rz = cz + hz;
-    if (lz < minz) minz = lz;
-    if (rz > maxz) maxz = rz;
-    if (includeCentroid && cz < cminz) cminz = cz;
-    if (includeCentroid && cz > cmaxz) cmaxz = cz;
-  }
-
-  target[0] = minx;
-  target[1] = miny;
-  target[2] = minz;
-  target[3] = maxx;
-  target[4] = maxy;
-  target[5] = maxz;
-
-  if (includeCentroid) {
-    centroidTarget[0] = cminx;
-    centroidTarget[1] = cminy;
-    centroidTarget[2] = cminz;
-    centroidTarget[3] = cmaxx;
-    centroidTarget[4] = cmaxy;
-    centroidTarget[5] = cmaxz;
-  }
-} // A stand alone function for retrieving the centroid bounds.
-
-
-function getCentroidBounds(triangleBounds, offset, count, centroidTarget) {
-  var cminx = Infinity;
-  var cminy = Infinity;
-  var cminz = Infinity;
-  var cmaxx = -Infinity;
-  var cmaxy = -Infinity;
-  var cmaxz = -Infinity;
-
-  for (var i = offset * 6, end = (offset + count) * 6; i < end; i += 6) {
-    var cx = triangleBounds[i + 0];
-    if (cx < cminx) cminx = cx;
-    if (cx > cmaxx) cmaxx = cx;
-    var cy = triangleBounds[i + 2];
-    if (cy < cminy) cminy = cy;
-    if (cy > cmaxy) cmaxy = cy;
-    var cz = triangleBounds[i + 4];
-    if (cz < cminz) cminz = cz;
-    if (cz > cmaxz) cmaxz = cz;
-  }
-
-  centroidTarget[0] = cminx;
-  centroidTarget[1] = cminy;
-  centroidTarget[2] = cminz;
-  centroidTarget[3] = cmaxx;
-  centroidTarget[4] = cmaxy;
-  centroidTarget[5] = cmaxz;
-} // reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split
-// will be on the left and elements on the right side of the split will be on the right. returns the index
-// of the first element on the right side, or offset + count if there are no elements on the right side.
-
-
-function partition(index, triangleBounds, sahPlanes, offset, count, split) {
-  var left = offset;
-  var right = offset + count - 1;
-  var pos = split.pos;
-  var axisOffset = split.axis * 2; // hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme
-
-  while (true) {
-    while (left <= right && triangleBounds[left * 6 + axisOffset] < pos) {
-      left++;
-    }
-
-    while (left <= right && triangleBounds[right * 6 + axisOffset] >= pos) {
-      right--;
-    }
-
-    if (left < right) {
-      // we need to swap all of the information associated with the triangles at index
-      // left and right; that's the verts in the geometry index, the bounds,
-      // and perhaps the SAH planes
-      for (var i = 0; i < 3; i++) {
-        var t0 = index[left * 3 + i];
-        index[left * 3 + i] = index[right * 3 + i];
-        index[right * 3 + i] = t0;
-        var t1 = triangleBounds[left * 6 + i * 2 + 0];
-        triangleBounds[left * 6 + i * 2 + 0] = triangleBounds[right * 6 + i * 2 + 0];
-        triangleBounds[right * 6 + i * 2 + 0] = t1;
-        var t2 = triangleBounds[left * 6 + i * 2 + 1];
-        triangleBounds[left * 6 + i * 2 + 1] = triangleBounds[right * 6 + i * 2 + 1];
-        triangleBounds[right * 6 + i * 2 + 1] = t2;
-      }
-
-      if (sahPlanes) {
-        for (var _i = 0; _i < 3; _i++) {
-          var t = sahPlanes[_i][left];
-          sahPlanes[_i][left] = sahPlanes[_i][right];
-          sahPlanes[_i][right] = t;
-        }
-      }
-
-      left++;
-      right--;
-    } else {
-      return left;
-    }
-  }
-}
-
-function getOptimalSplit(nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy) {
-  var axis = -1;
-  var pos = 0; // Center
-
-  if (strategy === _Constants.CENTER) {
-    axis = (0, _ArrayBoxUtilities.getLongestEdgeIndex)(centroidBoundingData);
-
-    if (axis !== -1) {
-      pos = (centroidBoundingData[axis] + centroidBoundingData[axis + 3]) / 2;
-    }
-  } else if (strategy === _Constants.AVERAGE) {
-    axis = (0, _ArrayBoxUtilities.getLongestEdgeIndex)(nodeBoundingData);
-
-    if (axis !== -1) {
-      pos = getAverage(triangleBounds, offset, count, axis);
-    }
-  } else if (strategy === _Constants.SAH) {
-    // Surface Area Heuristic
-    // In order to make this code more terse, the x, y, and z
-    // variables of various structures have been stuffed into
-    // 0, 1, and 2 array indices so they can be easily computed
-    // and accessed within array iteration
-    // Cost values defineed for operations. We're using bounds for traversal, so
-    // the cost of traversing one more layer is more than intersecting a triangle.
-    var TRAVERSAL_COST = 3;
-    var INTERSECTION_COST = 1;
-    var bb = (0, _ArrayBoxUtilities.arrayToBox)(nodeBoundingData, boxTemp); // Define the width, height, and depth of the bounds as a box
-
-    var dim = [bb.max.x - bb.min.x, bb.max.y - bb.min.y, bb.max.z - bb.min.z];
-    var sa = 2 * (dim[0] * dim[1] + dim[0] * dim[2] + dim[1] * dim[2]); // Get the precalculated planes based for the triangles we're
-    // testing here
-
-    var filteredLists = [[], [], []];
-
-    for (var i = offset, end = offset + count; i < end; i++) {
-      for (var v = 0; v < 3; v++) {
-        filteredLists[v].push(sahPlanes[v][i]);
-      }
-    }
-
-    filteredLists.forEach(function (planes) {
-      return planes.sort(function (a, b) {
-        return a.p - b.p;
-      });
-    }); // this bounds surface area, left bound SA, left triangles, right bound SA, right triangles
-
-    var getCost = function getCost(sa, sal, nl, sar, nr) {
-      return TRAVERSAL_COST + INTERSECTION_COST * (sal / sa * nl + sar / sa * nr);
-    }; // the cost of _not_ splitting into smaller bounds
-
-
-    var noSplitCost = INTERSECTION_COST * count;
-    axis = -1;
-    var bestCost = noSplitCost;
-
-    for (var _i2 = 0; _i2 < 3; _i2++) {
-      // o1 and o2 represent the _other_ two axes in the
-      // the space. So if we're checking the x (0) dimension,
-      // then o1 and o2 would be y and z (1 and 2)
-      var o1 = (_i2 + 1) % 3;
-      var o2 = (_i2 + 2) % 3;
-      var bmin = bb.min[xyzFields[_i2]];
-      var bmax = bb.max[xyzFields[_i2]];
-      var planes = filteredLists[_i2]; // The number of left and right triangles on either side
-      // given the current split
-
-      var nl = 0;
-      var nr = count;
-
-      for (var p = 0; p < planes.length; p++) {
-        var pinfo = planes[p]; // As the plane moves, we have to increment or decrement the
-        // number of triangles on either side of the plane
-
-        nl++;
-        nr--; // the distance from the plane to the edge of the broader bounds
-
-        var ldim = pinfo.p - bmin;
-        var rdim = bmax - pinfo.p; // same for the other two dimensions
-
-        var ldimo1 = dim[o1],
-            rdimo1 = dim[o1];
-        var ldimo2 = dim[o2],
-            rdimo2 = dim[o2];
-        /*
-        // compute the other bounding planes for the box
-        // if only the current triangles are considered to
-        // be in the box
-        // This is really slow and probably not really worth it
-        const o1planes = sahPlanes[o1];
-        const o2planes = sahPlanes[o2];
-        let lmin = Infinity, lmax = -Infinity;
-        let rmin = Infinity, rmax = -Infinity;
-        planes.forEach((p, i) => {
-        const tri2 = p.tri * 2;
-        const inf1 = o1planes[tri2 + 0];
-        const inf2 = o1planes[tri2 + 1];
-        if (i <= nl) {
-        lmin = Math.min(inf1.p, inf2.p, lmin);
-        lmax = Math.max(inf1.p, inf2.p, lmax);
-        }
-        if (i >= nr) {
-        rmin = Math.min(inf1.p, inf2.p, rmin);
-        rmax = Math.max(inf1.p, inf2.p, rmax);
-        }
-        })
-        ldimo1 = Math.min(lmax - lmin, ldimo1);
-        rdimo1 = Math.min(rmax - rmin, rdimo1);
-        		planes.forEach((p, i) => {
-        const tri2 = p.tri * 2;
-        const inf1 = o2planes[tri2 + 0];
-        const inf2 = o2planes[tri2 + 1];
-        if (i <= nl) {
-        lmin = Math.min(inf1.p, inf2.p, lmin);
-        lmax = Math.max(inf1.p, inf2.p, lmax);
-        }
-        if (i >= nr) {
-        rmin = Math.min(inf1.p, inf2.p, rmin);
-        rmax = Math.max(inf1.p, inf2.p, rmax);
-        }
-        })
-        ldimo2 = Math.min(lmax - lmin, ldimo2);
-        rdimo2 = Math.min(rmax - rmin, rdimo2);
-        */
-        // surface areas and cost
-
-        var sal = 2 * (ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim);
-        var sar = 2 * (rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim);
-        var cost = getCost(sa, sal, nl, sar, nr);
-
-        if (cost < bestCost) {
-          axis = _i2;
-          pos = pinfo.p;
-          bestCost = cost;
-        }
-      }
-    }
-  }
-
-  return {
-    axis: axis,
-    pos: pos
-  };
-} // returns the average coordinate on the specified axis of the all the provided triangles
-
-
-function getAverage(triangleBounds, offset, count, axis) {
-  var avg = 0;
-
-  for (var i = offset, end = offset + count; i < end; i++) {
-    avg += triangleBounds[i * 6 + axis * 2];
-  }
-
-  return avg / count;
-}
-
-function computeSAHPlanes(triangleBounds) {
-  var triCount = triangleBounds.length / 6;
-  var sahPlanes = [new Array(triCount), new Array(triCount), new Array(triCount)];
-
-  for (var tri = 0; tri < triCount; tri++) {
-    for (var el = 0; el < 3; el++) {
-      sahPlanes[el][tri] = {
-        p: triangleBounds[tri * 6 + el * 2],
-        tri: tri
-      };
-    }
-  }
-
-  return sahPlanes;
-} // precomputes the bounding box for each triangle; required for quickly calculating tree splits.
-// result is an array of size tris.length * 6 where triangle i maps to a
-// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,
-// representing the center and half-extent in each dimension of triangle i
-
-
-function computeTriangleBounds(geo) {
-  var verts = geo.attributes.position.array;
-  var index = geo.index.array;
-  var triCount = index.length / 3;
-  var triangleBounds = new Float32Array(triCount * 6);
-
-  for (var tri = 0; tri < triCount; tri++) {
-    var tri3 = tri * 3;
-    var tri6 = tri * 6;
-    var ai = index[tri3 + 0] * 3;
-    var bi = index[tri3 + 1] * 3;
-    var ci = index[tri3 + 2] * 3;
-
-    for (var el = 0; el < 3; el++) {
-      var a = verts[ai + el];
-      var b = verts[bi + el];
-      var c = verts[ci + el];
-      var min = a;
-      if (b < min) min = b;
-      if (c < min) min = c;
-      var max = a;
-      if (b > max) max = b;
-      if (c > max) max = c; // Increase the bounds size by float32 epsilon to avoid precision errors when
-      // converting to 32 bit float. Scale the epsilon by the size of the numbers being
-      // worked with.
-
-      var halfExtents = (max - min) / 2;
-      var el2 = el * 2;
-      triangleBounds[tri6 + el2 + 0] = min + halfExtents;
-      triangleBounds[tri6 + el2 + 1] = halfExtents + (Math.abs(min) + halfExtents) * FLOAT32_EPSILON;
-    }
-  }
-
-  return triangleBounds;
-}
-
-function buildTree(geo, options) {
-  // either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,
-  // recording the offset and count of its triangles and writing them into the reordered geometry index.
-  function splitNode(node, offset, count) {
-    var centroidBoundingData = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
-    var depth = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
-
-    if (!reachedMaxDepth && depth >= maxDepth) {
-      reachedMaxDepth = true;
-
-      if (verbose) {
-        console.warn("MeshBVH: Max depth of ".concat(maxDepth, " reached when generating BVH. Consider increasing maxDepth."));
-        console.warn(this, geo);
-      }
-    } // early out if we've met our capacity
-
-
-    if (count <= maxLeafTris || depth >= maxDepth) {
-      node.offset = offset;
-      node.count = count;
-      return node;
-    } // Find where to split the volume
-
-
-    var split = getOptimalSplit(node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy);
-
-    if (split.axis === -1) {
-      node.offset = offset;
-      node.count = count;
-      return node;
-    }
-
-    var splitOffset = partition(indexArray, triangleBounds, sahPlanes, offset, count, split); // create the two new child nodes
-
-    if (splitOffset === offset || splitOffset === offset + count) {
-      node.offset = offset;
-      node.count = count;
-    } else {
-      node.splitAxis = split.axis; // create the left child and compute its bounding box
-
-      var left = new _MeshBVHNode.default();
-      var lstart = offset;
-      var lcount = splitOffset - offset;
-      node.left = left;
-      left.boundingData = new Float32Array(6);
-      getBounds(triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData);
-      splitNode(left, lstart, lcount, cacheCentroidBoundingData, depth + 1); // repeat for right
-
-      var right = new _MeshBVHNode.default();
-      var rstart = splitOffset;
-      var rcount = count - lcount;
-      node.right = right;
-      right.boundingData = new Float32Array(6);
-      getBounds(triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData);
-      splitNode(right, rstart, rcount, cacheCentroidBoundingData, depth + 1);
-    }
-
-    return node;
-  }
-
-  ensureIndex(geo);
-  var cacheCentroidBoundingData = new Float32Array(6);
-  var triangleBounds = computeTriangleBounds(geo);
-  var sahPlanes = options.strategy === _Constants.SAH ? computeSAHPlanes(triangleBounds) : null;
-  var indexArray = geo.index.array;
-  var maxDepth = options.maxDepth;
-  var verbose = options.verbose;
-  var maxLeafTris = options.maxLeafTris;
-  var strategy = options.strategy;
-  var reachedMaxDepth = false;
-  var roots = [];
-  var ranges = getRootIndexRanges(geo);
-
-  if (ranges.length === 1) {
-    var root = new _MeshBVHNode.default();
-    var range = ranges[0];
-
-    if (geo.boundingBox != null) {
-      root.boundingData = (0, _ArrayBoxUtilities.boxToArray)(geo.boundingBox);
-      getCentroidBounds(triangleBounds, range.offset, range.count, cacheCentroidBoundingData);
-    } else {
-      root.boundingData = new Float32Array(6);
-      getBounds(triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData);
-    }
-
-    splitNode(root, range.offset, range.count, cacheCentroidBoundingData);
-    roots.push(root);
-  } else {
-    var _iterator2 = _createForOfIteratorHelper(ranges),
-        _step2;
-
-    try {
-      for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
-        var _range = _step2.value;
-
-        var _root = new _MeshBVHNode.default();
-
-        _root.boundingData = new Float32Array(6);
-        getBounds(triangleBounds, _range.offset, _range.count, _root.boundingData, cacheCentroidBoundingData);
-        splitNode(_root, _range.offset, _range.count, cacheCentroidBoundingData);
-        roots.push(_root);
-      }
-    } catch (err) {
-      _iterator2.e(err);
-    } finally {
-      _iterator2.f();
-    }
-  } // if the geometry doesn't have a bounding box, then let's politely populate it using
-  // the work we did to determine the BVH root bounds
-
-
-  if (geo.boundingBox == null) {
-    var rootBox = new _three.Box3();
-    geo.boundingBox = new _three.Box3();
-
-    var _iterator3 = _createForOfIteratorHelper(roots),
-        _step3;
-
-    try {
-      for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
-        var _root2 = _step3.value;
-        geo.boundingBox.union((0, _ArrayBoxUtilities.arrayToBox)(_root2.boundingData, rootBox));
-      }
-    } catch (err) {
-      _iterator3.e(err);
-    } finally {
-      _iterator3.f();
-    }
-  }
-
-  return roots;
-}
-
-var BYTES_PER_NODE = 6 * 4 + 4 + 4;
-exports.BYTES_PER_NODE = BYTES_PER_NODE;
-var IS_LEAFNODE_FLAG = 0xFFFF;
-exports.IS_LEAFNODE_FLAG = IS_LEAFNODE_FLAG;
-
-function buildPackedTree(geo, options) {
-  // boundingData  				: 6 float32
-  // right / offset 				: 1 uint32
-  // splitAxis / isLeaf + count 	: 1 uint32 / 2 uint16
-  var roots = buildTree(geo, options);
-  var float32Array;
-  var uint32Array;
-  var uint16Array;
-  var packedRoots = [];
-
-  for (var i = 0; i < roots.length; i++) {
-    var root = roots[i];
-    var nodeCount = countNodes(root);
-    var buffer = new ArrayBuffer(BYTES_PER_NODE * nodeCount);
-    float32Array = new Float32Array(buffer);
-    uint32Array = new Uint32Array(buffer);
-    uint16Array = new Uint16Array(buffer);
-    populateBuffer(0, root);
-    packedRoots.push(buffer);
-  }
-
-  return packedRoots;
-
-  function countNodes(node) {
-    if (node.count) {
-      return 1;
-    } else {
-      return 1 + countNodes(node.left) + countNodes(node.right);
-    }
-  }
-
-  function populateBuffer(byteOffset, node) {
-    var stride4Offset = byteOffset / 4;
-    var stride2Offset = byteOffset / 2;
-    var isLeaf = !!node.count;
-    var boundingData = node.boundingData;
-
-    for (var _i3 = 0; _i3 < 6; _i3++) {
-      float32Array[stride4Offset + _i3] = boundingData[_i3];
-    }
-
-    if (isLeaf) {
-      var offset = node.offset;
-      var count = node.count;
-      uint32Array[stride4Offset + 6] = offset;
-      uint16Array[stride2Offset + 14] = count;
-      uint16Array[stride2Offset + 15] = IS_LEAFNODE_FLAG;
-      return byteOffset + BYTES_PER_NODE;
-    } else {
-      var left = node.left;
-      var right = node.right;
-      var splitAxis = node.splitAxis;
-      var nextUnusedPointer;
-      nextUnusedPointer = populateBuffer(byteOffset + BYTES_PER_NODE, left);
-
-      if (nextUnusedPointer / 4 > Math.pow(2, 32)) {
-        throw new Error('MeshBVH: Cannot store child pointer greater than 32 bits.');
-      }
-
-      uint32Array[stride4Offset + 6] = nextUnusedPointer / 4;
-      nextUnusedPointer = populateBuffer(nextUnusedPointer, right);
-      uint32Array[stride4Offset + 7] = splitAxis;
-      return nextUnusedPointer;
-    }
-  }
-}
-},{"three":"../node_modules/three/build/three.module.js","./MeshBVHNode.js":"../src/MeshBVHNode.js","./Utils/ArrayBoxUtilities.js":"../src/Utils/ArrayBoxUtilities.js","./Constants.js":"../src/Constants.js"}],"../src/Utils/SeparatingAxisBounds.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.areIntersecting = exports.SeparatingAxisBounds = void 0;
-
-var _three = require("three");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-var SeparatingAxisBounds =
-/*#__PURE__*/
-function () {
-  function SeparatingAxisBounds() {
-    _classCallCheck(this, SeparatingAxisBounds);
-
-    this.min = Infinity;
-    this.max = -Infinity;
-  }
-
-  _createClass(SeparatingAxisBounds, [{
-    key: "setFromPointsField",
-    value: function setFromPointsField(points, field) {
-      var min = Infinity;
-      var max = -Infinity;
-
-      for (var i = 0, l = points.length; i < l; i++) {
-        var p = points[i];
-        var val = p[field];
-        min = Math.min(val, min);
-        max = Math.max(val, max);
-      }
-
-      this.min = min;
-      this.max = max;
-    }
-  }, {
-    key: "setFromPoints",
-    value: function setFromPoints(axis, points) {
-      var min = Infinity;
-      var max = -Infinity;
-
-      for (var i = 0, l = points.length; i < l; i++) {
-        var p = points[i];
-        var val = axis.dot(p);
-        min = Math.min(val, min);
-        max = Math.max(val, max);
-      }
-
-      this.min = min;
-      this.max = max;
-    }
-  }, {
-    key: "isSeparated",
-    value: function isSeparated(other) {
-      return this.min > other.max || other.min > this.max;
-    }
-  }]);
-
-  return SeparatingAxisBounds;
-}();
-
-exports.SeparatingAxisBounds = SeparatingAxisBounds;
-
-SeparatingAxisBounds.prototype.setFromBox = function () {
-  var p = new _three.Vector3();
-  return function setFromBox(axis, box) {
-    var boxMin = box.min;
-    var boxMax = box.max;
-    var min = Infinity;
-    var max = -Infinity;
-
-    for (var x = 0; x <= 1; x++) {
-      for (var y = 0; y <= 1; y++) {
-        for (var z = 0; z <= 1; z++) {
-          p.x = boxMin.x * x + boxMax.x * (1 - x);
-          p.y = boxMin.y * y + boxMax.y * (1 - y);
-          p.z = boxMin.z * z + boxMax.z * (1 - z);
-          var val = axis.dot(p);
-          min = Math.min(val, min);
-          max = Math.max(val, max);
-        }
-      }
-    }
-
-    this.min = min;
-    this.max = max;
-  };
-}();
-
-var areIntersecting = function () {
-  var cacheSatBounds = new SeparatingAxisBounds();
-  return function areIntersecting(shape1, shape2) {
-    var points1 = shape1.points;
-    var satAxes1 = shape1.satAxes;
-    var satBounds1 = shape1.satBounds;
-    var points2 = shape2.points;
-    var satAxes2 = shape2.satAxes;
-    var satBounds2 = shape2.satBounds; // check axes of the first shape
-
-    for (var i = 0; i < 3; i++) {
-      var sb = satBounds1[i];
-      var sa = satAxes1[i];
-      cacheSatBounds.setFromPoints(sa, points2);
-      if (sb.isSeparated(cacheSatBounds)) return false;
-    } // check axes of the second shape
-
-
-    for (var _i = 0; _i < 3; _i++) {
-      var _sb = satBounds2[_i];
-      var _sa = satAxes2[_i];
-      cacheSatBounds.setFromPoints(_sa, points1);
-      if (_sb.isSeparated(cacheSatBounds)) return false;
-    }
-  };
-}();
-
-exports.areIntersecting = areIntersecting;
-},{"three":"../node_modules/three/build/three.module.js"}],"../src/Utils/MathUtilities.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.sphereIntersectTriangle = exports.closestPointsSegmentToSegment = exports.closestPointLineToLine = void 0;
-
-var _three = require("three");
-
-var closestPointLineToLine = function () {
-  // https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56
-  var dir1 = new _three.Vector3();
-  var dir2 = new _three.Vector3();
-  var v02 = new _three.Vector3();
-  return function closestPointLineToLine(l1, l2, result) {
-    var v0 = l1.start;
-    var v10 = dir1;
-    var v2 = l2.start;
-    var v32 = dir2;
-    v02.subVectors(v0, v2);
-    dir1.subVectors(l1.end, l2.start);
-    dir2.subVectors(l2.end, l2.start); // float d0232 = v02.Dot(v32);
-
-    var d0232 = v02.dot(v32); // float d3210 = v32.Dot(v10);
-
-    var d3210 = v32.dot(v10); // float d3232 = v32.Dot(v32);
-
-    var d3232 = v32.dot(v32); // float d0210 = v02.Dot(v10);
-
-    var d0210 = v02.dot(v10); // float d1010 = v10.Dot(v10);
-
-    var d1010 = v10.dot(v10); // float denom = d1010*d3232 - d3210*d3210;
-
-    var denom = d1010 * d3232 - d3210 * d3210;
-    var d, d2;
-
-    if (denom !== 0) {
-      d = (d0232 * d3210 - d0210 * d3232) / denom;
-    } else {
-      d = 0;
-    }
-
-    d2 = (d0232 + d * d3210) / d3232;
-    result.x = d;
-    result.y = d2;
-  };
-}();
-
-exports.closestPointLineToLine = closestPointLineToLine;
-
-var closestPointsSegmentToSegment = function () {
-  // https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187
-  var paramResult = new _three.Vector2();
-  var temp1 = new _three.Vector3();
-  var temp2 = new _three.Vector3();
-  return function closestPointsSegmentToSegment(l1, l2, target1, target2) {
-    closestPointLineToLine(l1, l2, paramResult);
-    var d = paramResult.x;
-    var d2 = paramResult.y;
-
-    if (d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1) {
-      l1.at(d, target1);
-      l2.at(d2, target2);
-      return;
-    } else if (d >= 0 && d <= 1) {
-      // Only d2 is out of bounds.
-      if (d2 < 0) {
-        l2.at(0, target2);
-      } else {
-        l2.at(1, target2);
-      }
-
-      l1.closestPointToPoint(target2, true, target1);
-      return;
-    } else if (d2 >= 0 && d2 <= 1) {
-      // Only d is out of bounds.
-      if (d < 0) {
-        l1.at(0, target1);
-      } else {
-        l1.at(1, target1);
-      }
-
-      l2.closestPointToPoint(target1, true, target2);
-      return;
-    } else {
-      // Both u and u2 are out of bounds.
-      var p;
-
-      if (d < 0) {
-        p = l1.start;
-      } else {
-        p = l1.end;
-      }
-
-      var p2;
-
-      if (d2 < 0) {
-        p2 = l2.start;
-      } else {
-        p2 = l2.end;
-      }
-
-      var closestPoint = temp1;
-      var closestPoint2 = temp2;
-      l1.closestPointToPoint(p2, true, temp1);
-      l2.closestPointToPoint(p, true, temp2);
-
-      if (closestPoint.distanceToSquared(p2) <= closestPoint2.distanceToSquared(p)) {
-        target1.copy(closestPoint);
-        target2.copy(p2);
-        return;
-      } else {
-        target1.copy(p);
-        target2.copy(closestPoint2);
-        return;
-      }
-    }
-  };
-}();
-
-exports.closestPointsSegmentToSegment = closestPointsSegmentToSegment;
-
-var sphereIntersectTriangle = function () {
-  // https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js
-  var closestPointTemp = new _three.Vector3();
-  var projectedPointTemp = new _three.Vector3();
-  var planeTemp = new _three.Plane();
-  var lineTemp = new _three.Line3();
-  return function sphereIntersectTriangle(sphere, triangle) {
-    var radius = sphere.radius,
-        center = sphere.center;
-    var a = triangle.a,
-        b = triangle.b,
-        c = triangle.c; // phase 1
-
-    lineTemp.start = a;
-    lineTemp.end = b;
-    var closestPoint1 = lineTemp.closestPointToPoint(center, true, closestPointTemp);
-    if (closestPoint1.distanceTo(center) <= radius) return true;
-    lineTemp.start = a;
-    lineTemp.end = c;
-    var closestPoint2 = lineTemp.closestPointToPoint(center, true, closestPointTemp);
-    if (closestPoint2.distanceTo(center) <= radius) return true;
-    lineTemp.start = b;
-    lineTemp.end = c;
-    var closestPoint3 = lineTemp.closestPointToPoint(center, true, closestPointTemp);
-    if (closestPoint3.distanceTo(center) <= radius) return true; // phase 2
-
-    var plane = triangle.getPlane(planeTemp);
-    var dp = Math.abs(plane.distanceToPoint(center));
-
-    if (dp <= radius) {
-      var pp = plane.projectPoint(center, projectedPointTemp);
-      var cp = triangle.containsPoint(pp);
-      if (cp) return true;
-    }
-
-    return false;
-  };
-}();
-
-exports.sphereIntersectTriangle = sphereIntersectTriangle;
-},{"three":"../node_modules/three/build/three.module.js"}],"../src/Utils/SeparatingAxisTriangle.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.SeparatingAxisTriangle = void 0;
-
-var _three = require("three");
-
-var _SeparatingAxisBounds = require("./SeparatingAxisBounds.js");
-
-var _MathUtilities = require("./MathUtilities.js");
-
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
-
-function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
-
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
-
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
-
-function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
-
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
-
-var SeparatingAxisTriangle =
-/*#__PURE__*/
-function (_Triangle) {
-  _inherits(SeparatingAxisTriangle, _Triangle);
-
-  var _super = _createSuper(SeparatingAxisTriangle);
-
-  function SeparatingAxisTriangle() {
-    var _this;
-
-    _classCallCheck(this, SeparatingAxisTriangle);
-
-    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-      args[_key] = arguments[_key];
-    }
-
-    _this = _super.call.apply(_super, [this].concat(args));
-    _this.isSeparatingAxisTriangle = true;
-    _this.satAxes = new Array(4).fill().map(function () {
-      return new _three.Vector3();
-    });
-    _this.satBounds = new Array(4).fill().map(function () {
-      return new _SeparatingAxisBounds.SeparatingAxisBounds();
-    });
-    _this.points = [_this.a, _this.b, _this.c];
-    _this.sphere = new _three.Sphere();
-    _this.needsUpdate = false;
-    return _this;
-  }
-
-  _createClass(SeparatingAxisTriangle, [{
-    key: "intersectsSphere",
-    value: function intersectsSphere(sphere) {
-      return (0, _MathUtilities.sphereIntersectTriangle)(sphere, this);
-    }
-  }]);
-
-  return SeparatingAxisTriangle;
-}(_three.Triangle);
-
-exports.SeparatingAxisTriangle = SeparatingAxisTriangle;
-
-SeparatingAxisTriangle.prototype.update = function () {
-  var arr = new Array(3);
-  return function update() {
-    var a = this.a;
-    var b = this.b;
-    var c = this.c;
-    arr[0] = this.a;
-    arr[1] = this.b;
-    arr[2] = this.c;
-    var satAxes = this.satAxes;
-    var satBounds = this.satBounds;
-    var axis0 = satAxes[0];
-    var sab0 = satBounds[0];
-    this.getNormal(axis0);
-    sab0.setFromPoints(axis0, arr);
-    var axis1 = satAxes[1];
-    var sab1 = satBounds[1];
-    axis1.subVectors(a, b);
-    sab1.setFromPoints(axis1, arr);
-    var axis2 = satAxes[2];
-    var sab2 = satBounds[2];
-    axis2.subVectors(b, c);
-    sab2.setFromPoints(axis2, arr);
-    var axis3 = satAxes[3];
-    var sab3 = satBounds[3];
-    axis3.subVectors(c, a);
-    sab3.setFromPoints(axis3, arr);
-    this.sphere.setFromPoints(this.points);
-    this.needsUpdate = false;
-  };
-}();
-
-SeparatingAxisTriangle.prototype.closestPointToSegment = function () {
-  var point1 = new _three.Vector3();
-  var point2 = new _three.Vector3();
-  var edge = new _three.Line3();
-  return function distanceToSegment(segment) {
-    var target1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
-    var target2 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
-
-    if (this.needsUpdate) {
-      this.update();
-    }
-
-    var start = segment.start,
-        end = segment.end;
-    var points = this.points;
-    var distSq;
-    var closestDistanceSq = Infinity; // check the triangle edges
-
-    for (var i = 0; i < 3; i++) {
-      var nexti = (i + 1) % 3;
-      edge.start.copy(points[i]);
-      edge.end.copy(points[nexti]);
-      (0, _MathUtilities.closestPointsSegmentToSegment)(edge, segment, point1, point2);
-      distSq = point1.distanceToSquared(point2);
-
-      if (distSq < closestDistanceSq) {
-        closestDistanceSq = distSq;
-        if (target1) target1.copy(point1);
-        if (target2) target2.copy(point2);
-      }
-    } // check end points
-
-
-    this.closestPointToPoint(start, point1);
-    distSq = start.distanceToSquared(point1);
-
-    if (distSq < closestDistanceSq) {
-      closestDistanceSq = distSq;
-      if (target1) target1.copy(point1);
-      if (target2) target2.copy(start);
-    }
-
-    this.closestPointToPoint(end, point1);
-    distSq = end.distanceToSquared(point1);
-
-    if (distSq < closestDistanceSq) {
-      closestDistanceSq = distSq;
-      if (target1) target1.copy(point1);
-      if (target2) target2.copy(end);
-    }
-
-    return Math.sqrt(closestDistanceSq);
-  };
-}();
-
-SeparatingAxisTriangle.prototype.intersectsTriangle = function () {
-  var saTri2 = new SeparatingAxisTriangle();
-  var arr1 = new Array(3);
-  var arr2 = new Array(3);
-  var cachedSatBounds = new _SeparatingAxisBounds.SeparatingAxisBounds();
-  var cachedSatBounds2 = new _SeparatingAxisBounds.SeparatingAxisBounds();
-  var cachedAxis = new _three.Vector3();
-  return function intersectsTriangle(other) {
-    if (this.needsUpdate) {
-      this.update();
-    }
-
-    if (!other.isSeparatingAxisTriangle) {
-      saTri2.copy(other);
-      saTri2.update();
-      other = saTri2;
-    }
-
-    var satBounds1 = this.satBounds;
-    var satAxes1 = this.satAxes;
-    arr2[0] = other.a;
-    arr2[1] = other.b;
-    arr2[2] = other.c;
-
-    for (var i = 0; i < 4; i++) {
-      var sb = satBounds1[i];
-      var sa = satAxes1[i];
-      cachedSatBounds.setFromPoints(sa, arr2);
-      if (sb.isSeparated(cachedSatBounds)) return false;
-    }
-
-    var satBounds2 = other.satBounds;
-    var satAxes2 = other.satAxes;
-    arr1[0] = this.a;
-    arr1[1] = this.b;
-    arr1[2] = this.c;
-
-    for (var _i = 0; _i < 4; _i++) {
-      var _sb = satBounds2[_i];
-      var _sa = satAxes2[_i];
-      cachedSatBounds.setFromPoints(_sa, arr1);
-      if (_sb.isSeparated(cachedSatBounds)) return false;
-    } // check crossed axes
-
-
-    for (var _i2 = 0; _i2 < 4; _i2++) {
-      var sa1 = satAxes1[_i2];
-
-      for (var i2 = 0; i2 < 4; i2++) {
-        var sa2 = satAxes2[i2];
-        cachedAxis.crossVectors(sa1, sa2);
-        cachedSatBounds.setFromPoints(cachedAxis, arr1);
-        cachedSatBounds2.setFromPoints(cachedAxis, arr2);
-        if (cachedSatBounds.isSeparated(cachedSatBounds2)) return false;
-      }
-    }
-
-    return true;
-  };
-}();
-
-SeparatingAxisTriangle.prototype.distanceToPoint = function () {
-  var target = new _three.Vector3();
-  return function distanceToPoint(point) {
-    this.closestPointToPoint(point, target);
-    return point.distanceTo(target);
-  };
-}();
-
-SeparatingAxisTriangle.prototype.distanceToTriangle = function () {
-  var point = new _three.Vector3();
-  var point2 = new _three.Vector3();
-  var cornerFields = ['a', 'b', 'c'];
-  var line1 = new _three.Line3();
-  var line2 = new _three.Line3();
-  return function distanceToTriangle(other) {
-    var target1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
-    var target2 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
-
-    if (other.needsUpdate) {
-      other.update();
-    }
-
-    if (this.needsUpdate) {
-      this.update();
-    }
-
-    if (this.intersectsTriangle(other)) {
-      // TODO: This will not result in a point that lies on
-      // the intersection line of the triangles
-      if (target1 || target2) {
-        this.getMidpoint(point);
-        other.closestPointToPoint(point, point2);
-        this.closestPointToPoint(point2, point);
-        if (target1) target1.copy(point);
-        if (target2) target2.copy(point2);
-      }
-
-      return 0;
-    }
-
-    var closestDistanceSq = Infinity; // check all point distances
-
-    for (var i = 0; i < 3; i++) {
-      var dist = void 0;
-      var field = cornerFields[i];
-      var otherVec = other[field];
-      this.closestPointToPoint(otherVec, point);
-      dist = otherVec.distanceToSquared(point);
-
-      if (dist < closestDistanceSq) {
-        closestDistanceSq = dist;
-        if (target1) target1.copy(point);
-        if (target2) target2.copy(otherVec);
-      }
-
-      var thisVec = this[field];
-      other.closestPointToPoint(thisVec, point);
-      dist = thisVec.distanceToSquared(point);
-
-      if (dist < closestDistanceSq) {
-        closestDistanceSq = dist;
-        if (target1) target1.copy(thisVec);
-        if (target2) target2.copy(point);
-      }
-    }
-
-    for (var _i3 = 0; _i3 < 3; _i3++) {
-      var f11 = cornerFields[_i3];
-      var f12 = cornerFields[(_i3 + 1) % 3];
-      line1.set(this[f11], this[f12]);
-
-      for (var i2 = 0; i2 < 3; i2++) {
-        var f21 = cornerFields[i2];
-        var f22 = cornerFields[(i2 + 1) % 3];
-        line2.set(other[f21], other[f22]);
-        (0, _MathUtilities.closestPointsSegmentToSegment)(line1, line2, point, point2);
-
-        var _dist = point.distanceToSquared(point2);
-
-        if (_dist < closestDistanceSq) {
-          closestDistanceSq = _dist;
-          if (target1) target1.copy(point);
-          if (target2) target2.copy(point2);
-        }
-      }
-    }
-
-    return Math.sqrt(closestDistanceSq);
-  };
-}();
-},{"three":"../node_modules/three/build/three.module.js","./SeparatingAxisBounds.js":"../src/Utils/SeparatingAxisBounds.js","./MathUtilities.js":"../src/Utils/MathUtilities.js"}],"../src/Utils/OrientedBox.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.OrientedBox = void 0;
-
-var _three = require("three");
-
-var _SeparatingAxisBounds = require("./SeparatingAxisBounds.js");
-
-var _SeparatingAxisTriangle = require("./SeparatingAxisTriangle.js");
-
-var _MathUtilities = require("./MathUtilities.js");
-
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
-
-function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
-
-function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
-
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
-
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
-
-function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
-
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
-
-var OrientedBox =
-/*#__PURE__*/
-function (_Box) {
-  _inherits(OrientedBox, _Box);
-
-  var _super = _createSuper(OrientedBox);
-
-  function OrientedBox() {
-    var _this;
-
-    _classCallCheck(this, OrientedBox);
-
-    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-      args[_key] = arguments[_key];
-    }
-
-    _this = _super.call.apply(_super, [this].concat(args));
-    _this.isOrientedBox = true;
-    _this.matrix = new _three.Matrix4();
-    _this.invMatrix = new _three.Matrix4();
-    _this.points = new Array(8).fill().map(function () {
-      return new _three.Vector3();
-    });
-    _this.satAxes = new Array(3).fill().map(function () {
-      return new _three.Vector3();
-    });
-    _this.satBounds = new Array(3).fill().map(function () {
-      return new _SeparatingAxisBounds.SeparatingAxisBounds();
-    });
-    _this.alignedSatBounds = new Array(3).fill().map(function () {
-      return new _SeparatingAxisBounds.SeparatingAxisBounds();
-    });
-    _this.sphere = new _three.Sphere();
-    return _this;
-  }
-
-  _createClass(OrientedBox, [{
-    key: "set",
-    value: function set(min, max, matrix) {
-      _get(_getPrototypeOf(OrientedBox.prototype), "set", this).call(this, min, max);
-
-      this.matrix = matrix;
-    }
-  }, {
-    key: "copy",
-    value: function copy(other) {
-      _get(_getPrototypeOf(OrientedBox.prototype), "copy", this).call(this, other);
-
-      this.matrix.copy(other.matrix);
-    }
-  }]);
-
-  return OrientedBox;
-}(_three.Box3);
-
-exports.OrientedBox = OrientedBox;
-
-OrientedBox.prototype.update = function () {
-  return function update() {
-    var matrix = this.matrix;
-    var min = this.min;
-    var max = this.max;
-    var points = this.points;
-
-    for (var x = 0; x <= 1; x++) {
-      for (var y = 0; y <= 1; y++) {
-        for (var z = 0; z <= 1; z++) {
-          var i = (1 << 0) * x | (1 << 1) * y | (1 << 2) * z;
-          var v = points[i];
-          v.x = x ? max.x : min.x;
-          v.y = y ? max.y : min.y;
-          v.z = z ? max.z : min.z;
-          v.applyMatrix4(matrix);
-        }
-      }
-    }
-
-    this.sphere.setFromPoints(this.points);
-    var satBounds = this.satBounds;
-    var satAxes = this.satAxes;
-    var minVec = points[0];
-
-    for (var _i = 0; _i < 3; _i++) {
-      var axis = satAxes[_i];
-      var sb = satBounds[_i];
-      var index = 1 << _i;
-      var pi = points[index];
-      axis.subVectors(minVec, pi);
-      sb.setFromPoints(axis, points);
-    }
-
-    var alignedSatBounds = this.alignedSatBounds;
-    alignedSatBounds[0].setFromPointsField(points, 'x');
-    alignedSatBounds[1].setFromPointsField(points, 'y');
-    alignedSatBounds[2].setFromPointsField(points, 'z');
-    this.invMatrix.copy(this.matrix).invert();
-  };
-}();
-
-OrientedBox.prototype.intersectsBox = function () {
-  var aabbBounds = new _SeparatingAxisBounds.SeparatingAxisBounds();
-  return function intersectsBox(box) {
-    if (!box.intersectsSphere(this.sphere)) return false;
-    var min = box.min;
-    var max = box.max;
-    var satBounds = this.satBounds;
-    var satAxes = this.satAxes;
-    var alignedSatBounds = this.alignedSatBounds;
-    aabbBounds.min = min.x;
-    aabbBounds.max = max.x;
-    if (alignedSatBounds[0].isSeparated(aabbBounds)) return false;
-    aabbBounds.min = min.y;
-    aabbBounds.max = max.y;
-    if (alignedSatBounds[1].isSeparated(aabbBounds)) return false;
-    aabbBounds.min = min.z;
-    aabbBounds.max = max.z;
-    if (alignedSatBounds[2].isSeparated(aabbBounds)) return false;
-
-    for (var i = 0; i < 3; i++) {
-      var axis = satAxes[i];
-      var sb = satBounds[i];
-      aabbBounds.setFromBox(axis, box);
-      if (sb.isSeparated(aabbBounds)) return false;
-    }
-
-    return true;
-  };
-}();
-
-OrientedBox.prototype.intersectsTriangle = function () {
-  var saTri = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
-  var pointsArr = new Array(3);
-  var cachedSatBounds = new _SeparatingAxisBounds.SeparatingAxisBounds();
-  var cachedSatBounds2 = new _SeparatingAxisBounds.SeparatingAxisBounds();
-  var cachedAxis = new _three.Vector3();
-  return function intersectsTriangle(triangle) {
-    if (!triangle.isSeparatingAxisTriangle) {
-      saTri.copy(triangle);
-      saTri.update();
-      triangle = saTri;
-    } else if (triangle.needsUpdate) {
-      triangle.update();
-    }
-
-    var satBounds = this.satBounds;
-    var satAxes = this.satAxes;
-    pointsArr[0] = triangle.a;
-    pointsArr[1] = triangle.b;
-    pointsArr[2] = triangle.c;
-
-    for (var i = 0; i < 3; i++) {
-      var sb = satBounds[i];
-      var sa = satAxes[i];
-      cachedSatBounds.setFromPoints(sa, pointsArr);
-      if (sb.isSeparated(cachedSatBounds)) return false;
-    }
-
-    var triSatBounds = triangle.satBounds;
-    var triSatAxes = triangle.satAxes;
-    var points = this.points;
-
-    for (var _i2 = 0; _i2 < 3; _i2++) {
-      var _sb = triSatBounds[_i2];
-      var _sa = triSatAxes[_i2];
-      cachedSatBounds.setFromPoints(_sa, points);
-      if (_sb.isSeparated(cachedSatBounds)) return false;
-    } // check crossed axes
-
-
-    for (var _i3 = 0; _i3 < 3; _i3++) {
-      var sa1 = satAxes[_i3];
-
-      for (var i2 = 0; i2 < 4; i2++) {
-        var sa2 = triSatAxes[i2];
-        cachedAxis.crossVectors(sa1, sa2);
-        cachedSatBounds.setFromPoints(cachedAxis, pointsArr);
-        cachedSatBounds2.setFromPoints(cachedAxis, points);
-        if (cachedSatBounds.isSeparated(cachedSatBounds2)) return false;
-      }
-    }
-
-    return true;
-  };
-}();
-
-OrientedBox.prototype.closestPointToPoint = function () {
-  return function closestPointToPoint(point, target1) {
-    target1.copy(point).applyMatrix4(this.invMatrix).clamp(this.min, this.max).applyMatrix4(this.matrix);
-    return target1;
-  };
-}();
-
-OrientedBox.prototype.distanceToPoint = function () {
-  var target = new _three.Vector3();
-  return function distanceToPoint(point) {
-    this.closestPointToPoint(point, target);
-    return point.distanceTo(target);
-  };
-}();
-
-OrientedBox.prototype.distanceToBox = function () {
-  var xyzFields = ['x', 'y', 'z'];
-  var segments1 = new Array(12).fill().map(function () {
-    return new _three.Line3();
-  });
-  var segments2 = new Array(12).fill().map(function () {
-    return new _three.Line3();
-  });
-  var point1 = new _three.Vector3();
-  var point2 = new _three.Vector3();
-  return function distanceToBox(box) {
-    var threshold = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
-    var target1 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
-    var target2 = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
-
-    if (this.intersectsBox(box)) {
-      if (target1 || target2) {
-        box.getCenter(point2);
-        this.closestPointToPoint(point2, point1);
-        box.closestPointToPoint(point1, point2);
-        if (target1) target1.copy(point1);
-        if (target2) target2.copy(point2);
-      }
-
-      return 0;
-    }
-
-    var threshold2 = threshold * threshold;
-    var min = box.min;
-    var max = box.max;
-    var points = this.points; // iterate over every edge and compare distances
-
-    var closestDistanceSq = Infinity; // check over all these points
-
-    for (var i = 0; i < 8; i++) {
-      var p = points[i];
-      point2.copy(p).clamp(min, max);
-      var dist = p.distanceToSquared(point2);
-
-      if (dist < closestDistanceSq) {
-        closestDistanceSq = dist;
-        if (target1) target1.copy(p);
-        if (target2) target2.copy(point2);
-        if (dist < threshold2) return Math.sqrt(dist);
-      }
-    } // generate and check all line segment distances
-
-
-    var count = 0;
-
-    for (var _i4 = 0; _i4 < 3; _i4++) {
-      for (var i1 = 0; i1 <= 1; i1++) {
-        for (var i2 = 0; i2 <= 1; i2++) {
-          var nextIndex = (_i4 + 1) % 3;
-          var nextIndex2 = (_i4 + 2) % 3; // get obb line segments
-
-          var index = i1 << nextIndex | i2 << nextIndex2;
-          var index2 = 1 << _i4 | i1 << nextIndex | i2 << nextIndex2;
-          var p1 = points[index];
-          var p2 = points[index2];
-          var line1 = segments1[count];
-          line1.set(p1, p2); // get aabb line segments
-
-          var f1 = xyzFields[_i4];
-          var f2 = xyzFields[nextIndex];
-          var f3 = xyzFields[nextIndex2];
-          var line2 = segments2[count];
-          var start = line2.start;
-          var end = line2.end;
-          start[f1] = min[f1];
-          start[f2] = i1 ? min[f2] : max[f2];
-          start[f3] = i2 ? min[f3] : max[f2];
-          end[f1] = max[f1];
-          end[f2] = i1 ? min[f2] : max[f2];
-          end[f3] = i2 ? min[f3] : max[f2];
-          count++;
-        }
-      }
-    } // check all the other boxes point
-
-
-    for (var x = 0; x <= 1; x++) {
-      for (var y = 0; y <= 1; y++) {
-        for (var z = 0; z <= 1; z++) {
-          point2.x = x ? max.x : min.x;
-          point2.y = y ? max.y : min.y;
-          point2.z = z ? max.z : min.z;
-          this.closestPointToPoint(point2, point1);
-
-          var _dist = point2.distanceToSquared(point1);
-
-          if (_dist < closestDistanceSq) {
-            closestDistanceSq = _dist;
-            if (target1) target1.copy(point1);
-            if (target2) target2.copy(point2);
-            if (_dist < threshold2) return Math.sqrt(_dist);
-          }
-        }
-      }
-    }
-
-    for (var _i5 = 0; _i5 < 12; _i5++) {
-      var l1 = segments1[_i5];
-
-      for (var _i6 = 0; _i6 < 12; _i6++) {
-        var l2 = segments2[_i6];
-        (0, _MathUtilities.closestPointsSegmentToSegment)(l1, l2, point1, point2);
-
-        var _dist2 = point1.distanceToSquared(point2);
-
-        if (_dist2 < closestDistanceSq) {
-          closestDistanceSq = _dist2;
-          if (target1) target1.copy(point1);
-          if (target2) target2.copy(point2);
-          if (_dist2 < threshold2) return Math.sqrt(_dist2);
-        }
-      }
-    }
-
-    return Math.sqrt(closestDistanceSq);
-  };
-}();
-},{"three":"../node_modules/three/build/three.module.js","./SeparatingAxisBounds.js":"../src/Utils/SeparatingAxisBounds.js","./SeparatingAxisTriangle.js":"../src/Utils/SeparatingAxisTriangle.js","./MathUtilities.js":"../src/Utils/MathUtilities.js"}],"../src/Utils/TriangleUtils.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.setTriangle = setTriangle;
-
-// sets the vertices of triangle `tri` with the 3 vertices after i
-function setTriangle(tri, i, index, pos) {
-  var ta = tri.a;
-  var tb = tri.b;
-  var tc = tri.c;
-  var i3 = index.getX(i);
-  ta.x = pos.getX(i3);
-  ta.y = pos.getY(i3);
-  ta.z = pos.getZ(i3);
-  i3 = index.getX(i + 1);
-  tb.x = pos.getX(i3);
-  tb.y = pos.getY(i3);
-  tb.z = pos.getZ(i3);
-  i3 = index.getX(i + 2);
-  tc.x = pos.getX(i3);
-  tc.y = pos.getY(i3);
-  tc.z = pos.getZ(i3);
-}
-},{}],"../src/Utils/ThreeIntersectionUtilities.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.intersectTri = intersectTri;
-
-var _three = require("three");
-
-// Ripped and modified From THREE.js Mesh raycast
-// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115
-var vA = new _three.Vector3();
-var vB = new _three.Vector3();
-var vC = new _three.Vector3();
-var uvA = new _three.Vector2();
-var uvB = new _three.Vector2();
-var uvC = new _three.Vector2();
-var intersectionPoint = new _three.Vector3();
-var intersectionPointWorld = new _three.Vector3();
-
-function checkIntersection(object, material, raycaster, ray, pA, pB, pC, point) {
-  var intersect;
-
-  if (material.side === _three.BackSide) {
-    intersect = ray.intersectTriangle(pC, pB, pA, true, point);
-  } else {
-    intersect = ray.intersectTriangle(pA, pB, pC, material.side !== _three.DoubleSide, point);
-  }
-
-  if (intersect === null) return null;
-  intersectionPointWorld.copy(point);
-  intersectionPointWorld.applyMatrix4(object.matrixWorld);
-  var distance = raycaster.ray.origin.distanceTo(intersectionPointWorld);
-  if (distance < raycaster.near || distance > raycaster.far) return null;
-  return {
-    distance: distance,
-    point: intersectionPointWorld.clone(),
-    object: object
-  };
-}
-
-function checkBufferGeometryIntersection(object, raycaster, ray, position, uv, a, b, c) {
-  vA.fromBufferAttribute(position, a);
-  vB.fromBufferAttribute(position, b);
-  vC.fromBufferAttribute(position, c);
-  var intersection = checkIntersection(object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint);
-
-  if (intersection) {
-    if (uv) {
-      uvA.fromBufferAttribute(uv, a);
-      uvB.fromBufferAttribute(uv, b);
-      uvC.fromBufferAttribute(uv, c);
-      intersection.uv = _three.Triangle.getUV(intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new _three.Vector2());
-    }
-
-    var face = {
-      a: a,
-      b: b,
-      c: c,
-      normal: new _three.Vector3(),
-      materialIndex: 0
-    };
-
-    _three.Triangle.getNormal(vA, vB, vC, face.normal);
-
-    intersection.face = face;
-    intersection.faceIndex = a;
-  }
-
-  return intersection;
-} // https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258
-
-
-function intersectTri(mesh, geo, raycaster, ray, tri, intersections) {
-  var triOffset = tri * 3;
-  var a = geo.index.getX(triOffset);
-  var b = geo.index.getX(triOffset + 1);
-  var c = geo.index.getX(triOffset + 2);
-  var intersection = checkBufferGeometryIntersection(mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c);
-
-  if (intersection) {
-    intersection.faceIndex = tri;
-    if (intersections) intersections.push(intersection);
-    return intersection;
-  }
-
-  return null;
-}
-},{"three":"../node_modules/three/build/three.module.js"}],"../src/Utils/RayIntersectTriUtlities.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.intersectTris = intersectTris;
-exports.intersectClosestTri = intersectClosestTri;
-
-var _ThreeIntersectionUtilities = require("./ThreeIntersectionUtilities.js");
-
-function intersectTris(mesh, geo, raycaster, ray, offset, count, intersections) {
-  for (var i = offset, end = offset + count; i < end; i++) {
-    (0, _ThreeIntersectionUtilities.intersectTri)(mesh, geo, raycaster, ray, i, intersections);
-  }
-}
-
-;
-
-function intersectClosestTri(mesh, geo, raycaster, ray, offset, count) {
-  var dist = Infinity;
-  var res = null;
-
-  for (var i = offset, end = offset + count; i < end; i++) {
-    var intersection = (0, _ThreeIntersectionUtilities.intersectTri)(mesh, geo, raycaster, ray, i);
-
-    if (intersection && intersection.distance < dist) {
-      res = intersection;
-      dist = intersection.distance;
-    }
-  }
-
-  return res;
-}
-
-;
-},{"./ThreeIntersectionUtilities.js":"../src/Utils/ThreeIntersectionUtilities.js"}],"../src/castFunctions.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.raycast = raycast;
-exports.raycastFirst = raycastFirst;
-exports.setBuffer = setBuffer;
-exports.clearBuffer = clearBuffer;
-exports.intersectsGeometry = exports.shapecast = void 0;
-
-var _three = require("three");
-
-var _RayIntersectTriUtlities = require("./Utils/RayIntersectTriUtlities.js");
-
-var _OrientedBox = require("./Utils/OrientedBox.js");
-
-var _TriangleUtils = require("./Utils/TriangleUtils.js");
-
-var _SeparatingAxisTriangle = require("./Utils/SeparatingAxisTriangle.js");
-
-var _Constants = require("./Constants.js");
-
-/* Generated from "castFunctions.template.js". Do not edit. */
-// For speed and readability this script is processed to replace the macro-like calls
-// with inline buffer reads. See generate-cast-functions.js.
-var boundingBox = new _three.Box3();
-var boxIntersection = new _three.Vector3();
-var xyzFields = ['x', 'y', 'z'];
-
-function raycast(nodeIndex32, mesh, raycaster, ray, intersects) {
-  var nodeIndex16 = nodeIndex32 * 2,
-      float32Array = _float32Array,
-      uint16Array = _uint16Array,
-      uint32Array = _uint32Array;
-  var isLeaf = uint16Array[nodeIndex16 + 15] === 0xFFFF;
-
-  if (isLeaf) {
-    var offset = uint32Array[nodeIndex32 + 6];
-    var count = uint16Array[nodeIndex16 + 14];
-    (0, _RayIntersectTriUtlities.intersectTris)(mesh, mesh.geometry, raycaster, ray, offset, count, intersects);
-  } else {
-    var leftIndex = nodeIndex32 + 8;
-
-    if (intersectRay(leftIndex, float32Array, ray, boxIntersection)) {
-      raycast(leftIndex, mesh, raycaster, ray, intersects);
-    }
-
-    var rightIndex = uint32Array[nodeIndex32 + 6];
-
-    if (intersectRay(rightIndex, float32Array, ray, boxIntersection)) {
-      raycast(rightIndex, mesh, raycaster, ray, intersects);
-    }
-  }
-}
-
-function raycastFirst(nodeIndex32, mesh, raycaster, ray) {
-  var nodeIndex16 = nodeIndex32 * 2,
-      float32Array = _float32Array,
-      uint16Array = _uint16Array,
-      uint32Array = _uint32Array;
-  var isLeaf = uint16Array[nodeIndex16 + 15] === 0xFFFF;
-
-  if (isLeaf) {
-    var offset = uint32Array[nodeIndex32 + 6];
-    var count = uint16Array[nodeIndex16 + 14];
-    return (0, _RayIntersectTriUtlities.intersectClosestTri)(mesh, mesh.geometry, raycaster, ray, offset, count);
-  } else {
-    // consider the position of the split plane with respect to the oncoming ray; whichever direction
-    // the ray is coming from, look for an intersection among that side of the tree first
-    var splitAxis = uint32Array[nodeIndex32 + 7];
-    var xyzAxis = xyzFields[splitAxis];
-    var rayDir = ray.direction[xyzAxis];
-    var leftToRight = rayDir >= 0; // c1 is the child to check first
-
-    var c1, c2;
-
-    if (leftToRight) {
-      c1 = nodeIndex32 + 8;
-      c2 = uint32Array[nodeIndex32 + 6];
-    } else {
-      c1 = uint32Array[nodeIndex32 + 6];
-      c2 = nodeIndex32 + 8;
-    }
-
-    var c1Intersection = intersectRay(c1, float32Array, ray, boxIntersection);
-    var c1Result = c1Intersection ? raycastFirst(c1, mesh, raycaster, ray) : null; // if we got an intersection in the first node and it's closer than the second node's bounding
-    // box, we don't need to consider the second node because it couldn't possibly be a better result
-
-    if (c1Result) {
-      // check if the point is within the second bounds
-      var point = c1Result.point[xyzAxis];
-      var isOutside = leftToRight ? point <= float32Array[c2 + splitAxis] : // min bounding data
-      point >= float32Array[c2 + splitAxis + 3]; // max bounding data
-
-      if (isOutside) {
-        return c1Result;
-      }
-    } // either there was no intersection in the first node, or there could still be a closer
-    // intersection in the second, so check the second node and then take the better of the two
-
-
-    var c2Intersection = intersectRay(c2, float32Array, ray, boxIntersection);
-    var c2Result = c2Intersection ? raycastFirst(c2, mesh, raycaster, ray) : null;
-
-    if (c1Result && c2Result) {
-      return c1Result.distance <= c2Result.distance ? c1Result : c2Result;
-    } else {
-      return c1Result || c2Result || null;
-    }
-  }
-}
-
-var shapecast = function () {
-  var _triangle = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
-
-  var _cachedBox1 = new _three.Box3();
-
-  var _cachedBox2 = new _three.Box3();
-
-  function iterateOverTriangles(offset, count, geometry, intersectsTriangleFunc, contained, depth, triangle) {
-    var index = geometry.index;
-    var pos = geometry.attributes.position;
-
-    for (var i = offset * 3, l = (count + offset) * 3; i < l; i += 3) {
-      (0, _TriangleUtils.setTriangle)(triangle, i, index, pos);
-      triangle.needsUpdate = true;
-
-      if (intersectsTriangleFunc(triangle, i, i + 1, i + 2, contained, depth)) {
-        return true;
-      }
-    }
-
-    return false;
-  }
-
-  return function shapecast(nodeIndex32, mesh, intersectsBoundsFunc) {
-    var intersectsTriangleFunc = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
-    var nodeScoreFunc = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : null;
-    var depth = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
-    var triangle = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : _triangle;
-    var cachedBox1 = arguments.length > 7 && arguments[7] !== undefined ? arguments[7] : _cachedBox1;
-    var cachedBox2 = arguments.length > 8 && arguments[8] !== undefined ? arguments[8] : _cachedBox2;
-
-    // Define these inside the function so it has access to the local variables needed
-    // when converting to the buffer equivalents
-    function getLeftOffset(nodeIndex32) {
-      var nodeIndex16 = nodeIndex32 * 2,
-          uint16Array = _uint16Array,
-          uint32Array = _uint32Array; // traverse until we find a leaf
-
-      while (!(uint16Array[nodeIndex16 + 15] === 0xFFFF)) {
-        nodeIndex32 = nodeIndex32 + 8;
-        nodeIndex16 = nodeIndex32 * 2;
-      }
-
-      return uint32Array[nodeIndex32 + 6];
-    }
-
-    function getRightEndOffset(nodeIndex32) {
-      var nodeIndex16 = nodeIndex32 * 2,
-          uint16Array = _uint16Array,
-          uint32Array = _uint32Array; // traverse until we find a leaf
-
-      while (!(uint16Array[nodeIndex16 + 15] === 0xFFFF)) {
-        // adjust offset to point to the right node
-        nodeIndex32 = uint32Array[nodeIndex32 + 6];
-        nodeIndex16 = nodeIndex32 * 2;
-      } // return the end offset of the triangle range
-
-
-      return uint32Array[nodeIndex32 + 6] + uint16Array[nodeIndex16 + 14];
-    }
-
-    var nodeIndex16 = nodeIndex32 * 2,
-        float32Array = _float32Array,
-        uint16Array = _uint16Array,
-        uint32Array = _uint32Array;
-    var isLeaf = uint16Array[nodeIndex16 + 15] === 0xFFFF;
-
-    if (isLeaf && intersectsTriangleFunc) {
-      var geometry = mesh.geometry;
-      var offset = uint32Array[nodeIndex32 + 6];
-      var count = uint16Array[nodeIndex16 + 14];
-      return iterateOverTriangles(offset, count, geometry, intersectsTriangleFunc, false, depth, triangle);
-    } else {
-      var left = nodeIndex32 + 8;
-      var right = uint32Array[nodeIndex32 + 6];
-      var c1 = left;
-      var c2 = right;
-      var score1, score2;
-      var box1, box2;
-
-      if (nodeScoreFunc) {
-        box1 = cachedBox1;
-        box2 = cachedBox2; // bounding data is not offset
-
-        arrayToBox(c1, float32Array, box1);
-        arrayToBox(c2, float32Array, box2);
-        score1 = nodeScoreFunc(box1);
-        score2 = nodeScoreFunc(box2);
-
-        if (score2 < score1) {
-          c1 = right;
-          c2 = left;
-          var temp = score1;
-          score1 = score2;
-          score2 = temp;
-          box1 = box2; // box2 is always set before use below
-        }
-      } // Check box 1 intersection
-
-
-      if (!box1) {
-        box1 = cachedBox1;
-        arrayToBox(c1, float32Array, box1);
-      }
-
-      var isC1Leaf = uint16Array[c1 + 15] === 0xFFFF;
-      var c1Intersection = intersectsBoundsFunc(box1, isC1Leaf, score1, depth + 1);
-      var c1StopTraversal;
-
-      if (c1Intersection === _Constants.CONTAINED) {
-        var _geometry = mesh.geometry;
-
-        var _offset = getLeftOffset(c1);
-
-        var end = getRightEndOffset(c1);
-
-        var _count = end - _offset;
-
-        c1StopTraversal = iterateOverTriangles(_offset, _count, _geometry, intersectsTriangleFunc, true, depth + 1, triangle);
-      } else {
-        c1StopTraversal = c1Intersection && shapecast(c1, mesh, intersectsBoundsFunc, intersectsTriangleFunc, nodeScoreFunc, depth + 1, triangle, cachedBox1, cachedBox2);
-      }
-
-      if (c1StopTraversal) return true; // Check box 2 intersection
-      // cached box2 will have been overwritten by previous traversal
-
-      box2 = cachedBox2;
-      arrayToBox(c2, float32Array, box2);
-      var isC2Leaf = uint16Array[c2 + 15] === 0xFFFF;
-      var c2Intersection = intersectsBoundsFunc(box2, isC2Leaf, score2, depth + 1);
-      var c2StopTraversal;
-
-      if (c2Intersection === _Constants.CONTAINED) {
-        var _geometry2 = mesh.geometry;
-
-        var _offset2 = getLeftOffset(c2);
-
-        var _end = getRightEndOffset(c2);
-
-        var _count2 = _end - _offset2;
-
-        c2StopTraversal = iterateOverTriangles(_offset2, _count2, _geometry2, intersectsTriangleFunc, true, depth + 1, triangle);
-      } else {
-        c2StopTraversal = c2Intersection && shapecast(c2, mesh, intersectsBoundsFunc, intersectsTriangleFunc, nodeScoreFunc, depth + 1, triangle, cachedBox1, cachedBox2);
-      }
-
-      if (c2StopTraversal) return true;
-      return false;
-    }
-  };
-}();
-
-exports.shapecast = shapecast;
-
-var intersectsGeometry = function () {
-  var triangle = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
-  var triangle2 = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
-  var cachedMesh = new _three.Mesh();
-  var invertedMat = new _three.Matrix4();
-  var obb = new _OrientedBox.OrientedBox();
-  var obb2 = new _OrientedBox.OrientedBox();
-  return function intersectsGeometry(nodeIndex32, mesh, geometry, geometryToBvh) {
-    var cachedObb = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : null;
-    var nodeIndex16 = nodeIndex32 * 2,
-        float32Array = _float32Array,
-        uint16Array = _uint16Array,
-        uint32Array = _uint32Array;
-
-    if (cachedObb === null) {
-      if (!geometry.boundingBox) {
-        geometry.computeBoundingBox();
-      }
-
-      obb.set(geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh);
-      obb.update();
-      cachedObb = obb;
-    }
-
-    var isLeaf = uint16Array[nodeIndex16 + 15] === 0xFFFF;
-
-    if (isLeaf) {
-      var thisGeometry = mesh.geometry;
-      var thisIndex = thisGeometry.index;
-      var thisPos = thisGeometry.attributes.position;
-      var index = geometry.index;
-      var pos = geometry.attributes.position;
-      var offset = uint32Array[nodeIndex32 + 6];
-      var count = uint16Array[nodeIndex16 + 14]; // get the inverse of the geometry matrix so we can transform our triangles into the
-      // geometry space we're trying to test. We assume there are fewer triangles being checked
-      // here.
-
-      invertedMat.copy(geometryToBvh).invert();
-
-      if (geometry.boundsTree) {
-        arrayToBox(nodeIndex32, float32Array, obb2);
-        obb2.matrix.copy(invertedMat);
-        obb2.update();
-        cachedMesh.geometry = geometry;
-        var res = geometry.boundsTree.shapecast(cachedMesh, function (box) {
-          return obb2.intersectsBox(box);
-        }, function (tri) {
-          tri.a.applyMatrix4(geometryToBvh);
-          tri.b.applyMatrix4(geometryToBvh);
-          tri.c.applyMatrix4(geometryToBvh);
-          tri.update();
-
-          for (var i = offset * 3, l = (count + offset) * 3; i < l; i += 3) {
-            // this triangle needs to be transformed into the current BVH coordinate frame
-            (0, _TriangleUtils.setTriangle)(triangle2, i, thisIndex, thisPos);
-            triangle2.update();
-
-            if (tri.intersectsTriangle(triangle2)) {
-              return true;
-            }
-          }
-
-          return false;
-        });
-        cachedMesh.geometry = null;
-        return res;
-      } else {
-        for (var i = offset * 3, l = count + offset * 3; i < l; i += 3) {
-          // this triangle needs to be transformed into the current BVH coordinate frame
-          (0, _TriangleUtils.setTriangle)(triangle, i, thisIndex, thisPos);
-          triangle.a.applyMatrix4(invertedMat);
-          triangle.b.applyMatrix4(invertedMat);
-          triangle.c.applyMatrix4(invertedMat);
-          triangle.update();
-
-          for (var i2 = 0, l2 = index.count; i2 < l2; i2 += 3) {
-            (0, _TriangleUtils.setTriangle)(triangle2, i2, index, pos);
-            triangle2.update();
-
-            if (triangle.intersectsTriangle(triangle2)) {
-              return true;
-            }
-          }
-        }
-      }
-    } else {
-      var left = nodeIndex32 + 8;
-      var right = uint32Array[nodeIndex32 + 6];
-      arrayToBox(left, float32Array, boundingBox);
-      var leftIntersection = cachedObb.intersectsBox(boundingBox) && intersectsGeometry(left, mesh, geometry, geometryToBvh, cachedObb);
-      if (leftIntersection) return true;
-      arrayToBox(right, float32Array, boundingBox);
-      var rightIntersection = cachedObb.intersectsBox(boundingBox) && intersectsGeometry(right, mesh, geometry, geometryToBvh, cachedObb);
-      if (rightIntersection) return true;
-      return false;
-    }
-  };
-}();
-
-exports.intersectsGeometry = intersectsGeometry;
-
-function intersectRay(nodeIndex32, array, ray, target) {
-  arrayToBox(nodeIndex32, array, boundingBox);
-  return ray.intersectBox(boundingBox, target);
-}
-
-var bufferStack = [];
-
-var _prevBuffer;
-
-var _float32Array;
-
-var _uint16Array;
-
-var _uint32Array;
-
-function setBuffer(buffer) {
-  if (_prevBuffer) {
-    bufferStack.push(_prevBuffer);
-  }
-
-  _prevBuffer = buffer;
-  _float32Array = new Float32Array(buffer);
-  _uint16Array = new Uint16Array(buffer);
-  _uint32Array = new Uint32Array(buffer);
-}
-
-function clearBuffer() {
-  _prevBuffer = null;
-  _float32Array = null;
-  _uint16Array = null;
-  _uint32Array = null;
-
-  if (bufferStack.length) {
-    setBuffer(bufferStack.pop());
-  }
-}
-
-function arrayToBox(nodeIndex32, array, target) {
-  target.min.x = array[nodeIndex32];
-  target.min.y = array[nodeIndex32 + 1];
-  target.min.z = array[nodeIndex32 + 2];
-  target.max.x = array[nodeIndex32 + 3];
-  target.max.y = array[nodeIndex32 + 4];
-  target.max.z = array[nodeIndex32 + 5];
-}
-},{"three":"../node_modules/three/build/three.module.js","./Utils/RayIntersectTriUtlities.js":"../src/Utils/RayIntersectTriUtlities.js","./Utils/OrientedBox.js":"../src/Utils/OrientedBox.js","./Utils/TriangleUtils.js":"../src/Utils/TriangleUtils.js","./Utils/SeparatingAxisTriangle.js":"../src/Utils/SeparatingAxisTriangle.js","./Constants.js":"../src/Constants.js"}],"../src/MeshBVH.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _three = require("three");
-
-var _Constants = require("./Constants.js");
-
-var _buildFunctions = require("./buildFunctions.js");
-
-var _OrientedBox = require("./Utils/OrientedBox.js");
-
-var _SeparatingAxisTriangle = require("./Utils/SeparatingAxisTriangle.js");
-
-var _TriangleUtils = require("./Utils/TriangleUtils.js");
-
-var _castFunctions = require("./castFunctions.js");
-
-function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
-
-function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
-
-function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
-
-function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-var SKIP_GENERATION = Symbol('skip tree generation');
-var obb = new _OrientedBox.OrientedBox();
-var temp = new _three.Vector3();
-var tri2 = new _SeparatingAxisTriangle.SeparatingAxisTriangle();
-var temp1 = new _three.Vector3();
-var temp2 = new _three.Vector3();
-
-var MeshBVH =
-/*#__PURE__*/
-function () {
-  _createClass(MeshBVH, null, [{
-    key: "serialize",
-    value: function serialize(bvh, geometry) {
-      var copyIndexBuffer = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
-      var rootData = bvh._roots;
-      var indexAttribute = geometry.getIndex();
-      var result = {
-        roots: rootData,
-        index: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array
-      };
-      return result;
-    }
-  }, {
-    key: "deserialize",
-    value: function deserialize(data, geometry) {
-      var setIndex = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
-      var index = data.index,
-          roots = data.roots;
-      var bvh = new MeshBVH(geometry, _defineProperty({}, SKIP_GENERATION, true));
-      bvh._roots = roots;
-
-      if (setIndex) {
-        var indexAttribute = geometry.getIndex();
-
-        if (indexAttribute === null) {
-          var newIndex = new _three.BufferAttribute(data.index, 1, false);
-          geometry.setIndex(newIndex);
-        } else if (indexAttribute.array !== index) {
-          indexAttribute.array.set(index);
-          indexAttribute.needsUpdate = true;
-        }
-      }
-
-      return bvh;
-    }
-  }]);
-
-  function MeshBVH(geo) {
-    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
-
-    _classCallCheck(this, MeshBVH);
-
-    if (!geo.isBufferGeometry) {
-      throw new Error('MeshBVH: Only BufferGeometries are supported.');
-    } else if (geo.attributes.position.isInterleavedBufferAttribute) {
-      throw new Error('MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.');
-    } else if (geo.index && geo.index.isInterleavedBufferAttribute) {
-      throw new Error('MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.');
-    } // default options
-
-
-    options = Object.assign(_defineProperty({
-      strategy: _Constants.CENTER,
-      maxDepth: 40,
-      maxLeafTris: 10,
-      verbose: true
-    }, SKIP_GENERATION, false), options);
-    options.strategy = Math.max(0, Math.min(2, options.strategy));
-    this._roots = null;
-
-    if (!options[SKIP_GENERATION]) {
-      this._roots = (0, _buildFunctions.buildPackedTree)(geo, options);
-    }
-  }
-
-  _createClass(MeshBVH, [{
-    key: "refit",
-    value: function refit(geometry) {
-      var indexArr = geometry.index.array;
-      var posArr = geometry.attributes.position.array;
-      var buffer, uint32Array, uint16Array, float32Array;
-      var roots = this._roots;
-
-      for (var i = 0, l = roots.length; i < l; i++) {
-        buffer = roots[i];
-        uint32Array = new Uint32Array(buffer);
-        uint16Array = new Uint16Array(buffer);
-        float32Array = new Float32Array(buffer);
-
-        _traverse(0);
-      }
-
-      function _traverse(node32Index) {
-        var node16Index = node32Index * 2;
-        var isLeaf = uint16Array[node16Index + 15] === _buildFunctions.IS_LEAFNODE_FLAG;
-
-        if (isLeaf) {
-          var offset = uint32Array[node32Index + 6];
-          var count = uint16Array[node16Index + 14];
-          var minx = Infinity;
-          var miny = Infinity;
-          var minz = Infinity;
-          var maxx = -Infinity;
-          var maxy = -Infinity;
-          var maxz = -Infinity;
-
-          for (var _i = 3 * offset, _l = 3 * (offset + count); _i < _l; _i++) {
-            var index3 = indexArr[_i] * 3;
-            var x = posArr[index3 + 0];
-            var y = posArr[index3 + 1];
-            var z = posArr[index3 + 2];
-            if (x < minx) minx = x;
-            if (x > maxx) maxx = x;
-            if (y < miny) miny = y;
-            if (y > maxy) maxy = y;
-            if (z < minz) minz = z;
-            if (z > maxz) maxz = z;
-          }
-
-          if (float32Array[node32Index + 0] !== minx || float32Array[node32Index + 1] !== miny || float32Array[node32Index + 2] !== minz || float32Array[node32Index + 3] !== maxx || float32Array[node32Index + 4] !== maxy || float32Array[node32Index + 5] !== maxz) {
-            float32Array[node32Index + 0] = minx;
-            float32Array[node32Index + 1] = miny;
-            float32Array[node32Index + 2] = minz;
-            float32Array[node32Index + 3] = maxx;
-            float32Array[node32Index + 4] = maxy;
-            float32Array[node32Index + 5] = maxz;
-            return true;
-          } else {
-            return false;
-          }
-        } else {
-          var left = node32Index + 8;
-          var right = uint32Array[node32Index + 6];
-
-          var leftChange = _traverse(left);
-
-          var rightChange = _traverse(right);
-
-          var didChange = leftChange || rightChange;
-
-          if (didChange) {
-            for (var _i2 = 0; _i2 < 3; _i2++) {
-              var lefti = left + _i2;
-              var righti = right + _i2;
-              var minLeftValue = float32Array[lefti];
-              var maxLeftValue = float32Array[lefti + 3];
-              var minRightValue = float32Array[righti];
-              var maxRightValue = float32Array[righti + 3];
-              float32Array[node32Index + _i2] = minLeftValue < minRightValue ? minLeftValue : minRightValue;
-              float32Array[node32Index + _i2 + 3] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;
-            }
-          }
-
-          return didChange;
-        }
-      }
-    }
-  }, {
-    key: "traverse",
-    value: function traverse(callback) {
-      var rootIndex = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
-      var buffer = this._roots[rootIndex];
-      var uint32Array = new Uint32Array(buffer);
-      var uint16Array = new Uint16Array(buffer);
-
-      _traverse(0);
-
-      function _traverse(node32Index) {
-        var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
-        var node16Index = node32Index * 2;
-        var isLeaf = uint16Array[node16Index + 15] === _buildFunctions.IS_LEAFNODE_FLAG;
-
-        if (isLeaf) {
-          var offset = uint32Array[node32Index + 6];
-          var count = uint16Array[node16Index + 14];
-          callback(depth, isLeaf, new Float32Array(buffer, node32Index * 4, 6), offset, count);
-        } else {
-          var left = node32Index + _buildFunctions.BYTES_PER_NODE / 4;
-          var right = uint32Array[node32Index + 6];
-          var splitAxis = uint32Array[node32Index + 7];
-          var stopTraversal = callback(depth, isLeaf, new Float32Array(buffer, node32Index * 4, 6), splitAxis);
-
-          if (!stopTraversal) {
-            _traverse(left, depth + 1);
-
-            _traverse(right, depth + 1);
-          }
-        }
-      }
-    }
-    /* Core Cast Functions */
-
-  }, {
-    key: "raycast",
-    value: function raycast(mesh, raycaster, ray, intersects) {
-      var _iterator = _createForOfIteratorHelper(this._roots),
-          _step;
-
-      try {
-        for (_iterator.s(); !(_step = _iterator.n()).done;) {
-          var root = _step.value;
-          (0, _castFunctions.setBuffer)(root);
-          (0, _castFunctions.raycast)(0, mesh, raycaster, ray, intersects);
-        }
-      } catch (err) {
-        _iterator.e(err);
-      } finally {
-        _iterator.f();
-      }
-
-      (0, _castFunctions.clearBuffer)();
-    }
-  }, {
-    key: "raycastFirst",
-    value: function raycastFirst(mesh, raycaster, ray) {
-      var closestResult = null;
-
-      var _iterator2 = _createForOfIteratorHelper(this._roots),
-          _step2;
-
-      try {
-        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
-          var root = _step2.value;
-          (0, _castFunctions.setBuffer)(root);
-          var result = (0, _castFunctions.raycastFirst)(0, mesh, raycaster, ray);
-
-          if (result != null && (closestResult == null || result.distance < closestResult.distance)) {
-            closestResult = result;
-          }
-        }
-      } catch (err) {
-        _iterator2.e(err);
-      } finally {
-        _iterator2.f();
-      }
-
-      (0, _castFunctions.clearBuffer)();
-      return closestResult;
-    }
-  }, {
-    key: "intersectsGeometry",
-    value: function intersectsGeometry(mesh, geometry, geomToMesh) {
-      var result = false;
-
-      var _iterator3 = _createForOfIteratorHelper(this._roots),
-          _step3;
-
-      try {
-        for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
-          var root = _step3.value;
-          (0, _castFunctions.setBuffer)(root);
-          result = (0, _castFunctions.intersectsGeometry)(0, mesh, geometry, geomToMesh);
-
-          if (result) {
-            break;
-          }
-        }
-      } catch (err) {
-        _iterator3.e(err);
-      } finally {
-        _iterator3.f();
-      }
-
-      (0, _castFunctions.clearBuffer)();
-      return result;
-    }
-  }, {
-    key: "shapecast",
-    value: function shapecast(mesh, intersectsBoundsFunc) {
-      var intersectsTriangleFunc = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
-      var orderNodesFunc = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
-      var result = false;
-
-      var _iterator4 = _createForOfIteratorHelper(this._roots),
-          _step4;
-
-      try {
-        for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
-          var root = _step4.value;
-          (0, _castFunctions.setBuffer)(root);
-          result = (0, _castFunctions.shapecast)(0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc);
-
-          if (result) {
-            break;
-          }
-        }
-      } catch (err) {
-        _iterator4.e(err);
-      } finally {
-        _iterator4.f();
-      }
-
-      (0, _castFunctions.clearBuffer)();
-      return result;
-    }
-    /* Derived Cast Functions */
-
-  }, {
-    key: "intersectsBox",
-    value: function intersectsBox(mesh, box, boxToMesh) {
-      obb.set(box.min, box.max, boxToMesh);
-      obb.update();
-      return this.shapecast(mesh, function (box) {
-        return obb.intersectsBox(box);
-      }, function (tri) {
-        return obb.intersectsTriangle(tri);
-      });
-    }
-  }, {
-    key: "intersectsSphere",
-    value: function intersectsSphere(mesh, sphere) {
-      return this.shapecast(mesh, function (box) {
-        return sphere.intersectsBox(box);
-      }, function (tri) {
-        return tri.intersectsSphere(sphere);
-      });
-    }
-  }, {
-    key: "closestPointToGeometry",
-    value: function closestPointToGeometry(mesh, geom, geometryToBvh) {
-      var target1 = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
-      var target2 = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : null;
-      var minThreshold = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
-      var maxThreshold = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : Infinity;
-
-      if (!geom.boundingBox) {
-        geom.computeBoundingBox();
-      }
-
-      obb.set(geom.boundingBox.min, geom.boundingBox.max, geometryToBvh);
-      obb.update();
-      var pos = geom.attributes.position;
-      var index = geom.index;
-      var tempTarget1 = null;
-      var tempTarget2 = null;
-
-      if (target1) {
-        tempTarget1 = temp1;
-      }
-
-      if (target2) {
-        tempTarget2 = temp2;
-      }
-
-      var closestDistance = Infinity;
-      this.shapecast(mesh, function (box, isLeaf, score) {
-        return score < closestDistance && score < maxThreshold;
-      }, function (tri) {
-        if (tri.needsUpdate) {
-          tri.update();
-        }
-
-        var sphere1 = tri.sphere;
-
-        for (var i2 = 0, l2 = index.count; i2 < l2; i2 += 3) {
-          (0, _TriangleUtils.setTriangle)(tri2, i2, index, pos);
-          tri2.a.applyMatrix4(geometryToBvh);
-          tri2.b.applyMatrix4(geometryToBvh);
-          tri2.c.applyMatrix4(geometryToBvh);
-          tri2.sphere.setFromPoints(tri2.points);
-          var sphere2 = tri2.sphere;
-          var sphereDist = sphere2.center.distanceTo(sphere1.center) - sphere2.radius - sphere1.radius;
-
-          if (sphereDist > closestDistance) {
-            continue;
-          }
-
-          tri2.update();
-          var dist = tri.distanceToTriangle(tri2, tempTarget1, tempTarget2);
-
-          if (dist < closestDistance) {
-            if (target1) {
-              target1.copy(tempTarget1);
-            }
-
-            if (target2) {
-              target2.copy(tempTarget2);
-            }
-
-            closestDistance = dist;
-          } // stop traversal if we find a point that's under the given threshold
-
-
-          if (dist < minThreshold) {
-            return true;
-          }
-        }
-
-        return false;
-      }, function (box) {
-        return obb.distanceToBox(box, Math.min(closestDistance, maxThreshold));
-      });
-      return closestDistance;
-    }
-  }, {
-    key: "distanceToGeometry",
-    value: function distanceToGeometry(mesh, geom, matrix, minThreshold, maxThreshold) {
-      return this.closestPointToGeometry(mesh, geom, matrix, null, null, minThreshold, maxThreshold);
-    }
-  }, {
-    key: "closestPointToPoint",
-    value: function closestPointToPoint(mesh, point, target) {
-      var minThreshold = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
-      var maxThreshold = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : Infinity;
-      // early out if under minThreshold
-      // skip checking if over maxThreshold
-      // set minThreshold = maxThreshold to quickly check if a point is within a threshold
-      // returns Infinity if no value found
-      var closestDistance = Infinity;
-      this.shapecast(mesh, function (box, isLeaf, score) {
-        return score < closestDistance && score < maxThreshold;
-      }, function (tri) {
-        tri.closestPointToPoint(point, temp);
-        var dist = point.distanceTo(temp);
-
-        if (dist < closestDistance) {
-          if (target) {
-            target.copy(temp);
-          }
-
-          closestDistance = dist;
-        }
-
-        if (dist < minThreshold) {
-          return true;
-        } else {
-          return false;
-        }
-      }, function (box) {
-        return box.distanceToPoint(point);
-      });
-      return closestDistance;
-    }
-  }, {
-    key: "distanceToPoint",
-    value: function distanceToPoint(mesh, point, minThreshold, maxThreshold) {
-      return this.closestPointToPoint(mesh, point, null, minThreshold, maxThreshold);
-    }
-  }]);
-
-  return MeshBVH;
-}();
-
-exports.default = MeshBVH;
-},{"three":"../node_modules/three/build/three.module.js","./Constants.js":"../src/Constants.js","./buildFunctions.js":"../src/buildFunctions.js","./Utils/OrientedBox.js":"../src/Utils/OrientedBox.js","./Utils/SeparatingAxisTriangle.js":"../src/Utils/SeparatingAxisTriangle.js","./Utils/TriangleUtils.js":"../src/Utils/TriangleUtils.js","./castFunctions.js":"../src/castFunctions.js"}],"../src/MeshBVHVisualizer.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _three = require("three");
-
-var _ArrayBoxUtilities = require("./Utils/ArrayBoxUtilities.js");
-
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
-
-function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
-
-function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
-
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
-
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
-
-function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
-
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
-
-var wiremat = new _three.LineBasicMaterial({
-  color: 0x00FF88,
-  transparent: true,
-  opacity: 0.3
-});
-var boxGeom = new _three.Box3Helper().geometry;
-var boundingBox = new _three.Box3();
-
-var MeshBVHRootVisualizer =
-/*#__PURE__*/
-function (_Group) {
-  _inherits(MeshBVHRootVisualizer, _Group);
-
-  var _super = _createSuper(MeshBVHRootVisualizer);
-
-  function MeshBVHRootVisualizer(mesh) {
-    var _this;
-
-    var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 10;
-    var group = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
-
-    _classCallCheck(this, MeshBVHRootVisualizer);
-
-    _this = _super.call(this, 'MeshBVHRootVisualizer');
-    _this.depth = depth;
-    _this.mesh = mesh;
-    _this._group = group;
-
-    _this.update();
-
-    return _this;
-  }
-
-  _createClass(MeshBVHRootVisualizer, [{
-    key: "update",
-    value: function update() {
-      var _this2 = this;
-
-      var boundsTree = this.mesh.geometry.boundsTree;
-      var requiredChildren = 0;
-
-      if (boundsTree) {
-        boundsTree.traverse(function (depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished) {
-          var isTerminal = isLeaf || countOrIsUnfinished; // Stop traversal
-
-          if (depth >= _this2.depth) {
-            return true;
-          }
-
-          if (depth === _this2.depth - 1 || isTerminal) {
-            var m = requiredChildren < _this2.children.length ? _this2.children[requiredChildren] : null;
-
-            if (!m) {
-              m = new _three.LineSegments(boxGeom, wiremat);
-
-              m.raycast = function () {
-                return [];
-              };
-
-              _this2.add(m);
-            }
-
-            requiredChildren++;
-            (0, _ArrayBoxUtilities.arrayToBox)(boundingData, boundingBox);
-            boundingBox.getCenter(m.position);
-            m.scale.subVectors(boundingBox.max, boundingBox.min).multiplyScalar(0.5);
-            if (m.scale.x === 0) m.scale.x = Number.EPSILON;
-            if (m.scale.y === 0) m.scale.y = Number.EPSILON;
-            if (m.scale.z === 0) m.scale.z = Number.EPSILON;
-          }
-        });
-      }
-
-      while (this.children.length > requiredChildren) {
-        this.remove(this.children.pop());
-      }
-    }
-  }]);
-
-  return MeshBVHRootVisualizer;
-}(_three.Group);
-
-var MeshBVHVisualizer =
-/*#__PURE__*/
-function (_Group2) {
-  _inherits(MeshBVHVisualizer, _Group2);
-
-  var _super2 = _createSuper(MeshBVHVisualizer);
-
-  function MeshBVHVisualizer(mesh) {
-    var _this3;
-
-    var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 10;
-
-    _classCallCheck(this, MeshBVHVisualizer);
-
-    _this3 = _super2.call(this, 'MeshBVHVisualizer');
-    _this3.depth = depth;
-    _this3.mesh = mesh;
-    _this3._roots = [];
-
-    _this3.update();
-
-    return _this3;
-  }
-
-  _createClass(MeshBVHVisualizer, [{
-    key: "update",
-    value: function update() {
-      var bvh = this.mesh.geometry.boundsTree;
-      var totalRoots = bvh ? bvh._roots.length : 0;
-
-      while (this._roots.length > totalRoots) {
-        this._roots.pop();
-      }
-
-      for (var i = 0; i < totalRoots; i++) {
-        if (i >= this._roots.length) {
-          var root = new MeshBVHRootVisualizer(this.mesh, this.depth, i);
-          this.add(root);
-
-          this._roots.push(root);
-        } else {
-          var _root = this._roots[i];
-          _root.depth = this.depth;
-          _root.mesh = this.mesh;
-
-          _root.update();
-        }
-      }
-    }
-  }, {
-    key: "updateMatrixWorld",
-    value: function updateMatrixWorld() {
-      var _get2;
-
-      this.position.copy(this.mesh.position);
-      this.rotation.copy(this.mesh.rotation);
-      this.scale.copy(this.mesh.scale);
-
-      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
-        args[_key] = arguments[_key];
-      }
-
-      (_get2 = _get(_getPrototypeOf(MeshBVHVisualizer.prototype), "updateMatrixWorld", this)).call.apply(_get2, [this].concat(args));
-    }
-  }, {
-    key: "copy",
-    value: function copy(source) {
-      this.depth = source.depth;
-      this.mesh = source.mesh;
-    }
-  }, {
-    key: "clone",
-    value: function clone() {
-      return new MeshBVHVisualizer(this.mesh, this.depth);
-    }
-  }]);
-
-  return MeshBVHVisualizer;
-}(_three.Group);
-
-var _default = MeshBVHVisualizer;
-exports.default = _default;
-},{"three":"../node_modules/three/build/three.module.js","./Utils/ArrayBoxUtilities.js":"../src/Utils/ArrayBoxUtilities.js"}],"../src/Utils/Debug.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.estimateMemoryInBytes = estimateMemoryInBytes;
-exports.getBVHExtremes = getBVHExtremes;
-
-function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object
-function getPrimitiveSize(el) {
-  switch (_typeof(el)) {
-    case 'number':
-      return 8;
-
-    case 'string':
-      return el.length * 2;
-
-    case 'boolean':
-      return 4;
-
-    default:
-      return 0;
-  }
-}
-
-function isTypedArray(arr) {
-  var regex = /(Uint|Int|Float)(8|16|32)Array/;
-  return regex.test(arr.constructor.name);
-}
-
-function getRootExtremes(bvh, group) {
-  var result = {
-    total: 0,
-    depth: {
-      min: Infinity,
-      max: -Infinity
-    },
-    tris: {
-      min: Infinity,
-      max: -Infinity
-    },
-    splits: [0, 0, 0]
-  };
-  bvh.traverse(function (depth, isLeaf, boundingData, offsetOrSplit, count) {
-    result.total++;
-
-    if (isLeaf) {
-      result.depth.min = Math.min(depth, result.depth.min);
-      result.depth.max = Math.max(depth, result.depth.max);
-      result.tris.min = Math.min(count, result.tris.min);
-      result.tris.max = Math.max(count, result.tris.max);
-    } else {
-      result.splits[offsetOrSplit]++;
-    }
-  }, group); // If there are no leaf nodes because the tree hasn't finished generating yet.
-
-  if (result.tris.min === Infinity) {
-    result.tris.min = 0;
-    result.tris.max = 0;
-  }
-
-  if (result.depth.min === Infinity) {
-    result.depth.min = 0;
-    result.depth.max = 0;
-  }
-
-  return result;
-}
-
-function getBVHExtremes(bvh) {
-  return bvh._roots.map(function (root, i) {
-    return getRootExtremes(bvh, i);
-  });
-}
-
-function estimateMemoryInBytes(obj) {
-  var traversed = new Set();
-  var stack = [obj];
-  var bytes = 0;
-
-  while (stack.length) {
-    var curr = stack.pop();
-
-    if (traversed.has(curr)) {
-      continue;
-    }
-
-    traversed.add(curr);
-
-    for (var key in curr) {
-      if (!curr.hasOwnProperty(key)) {
-        continue;
-      }
-
-      bytes += getPrimitiveSize(key);
-      var value = curr[key];
-
-      if (value && (_typeof(value) === 'object' || typeof value === 'function')) {
-        if (isTypedArray(value)) {
-          bytes += value.byteLength;
-        } else if (value instanceof ArrayBuffer) {
-          bytes += value.byteLength;
-        } else {
-          stack.push(value);
-        }
-      } else {
-        bytes += getPrimitiveSize(value);
-      }
-    }
-  }
-
-  return bytes;
-}
-},{}],"../src/MeshBVHDebug.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.MeshBVHDebug = void 0;
-
-var _three = require("three");
-
-var _ArrayBoxUtilities = require("./Utils/ArrayBoxUtilities.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-var box1 = new _three.Box3();
-var box2 = new _three.Box3();
-var vec = new _three.Vector3();
-
-var MeshBVHDebug =
-/*#__PURE__*/
-function () {
-  function MeshBVHDebug(bvh, geometry) {
-    _classCallCheck(this, MeshBVHDebug);
-
-    this.bvh = bvh;
-    this.geometry = geometry;
-  } // Returns a simple, human readable object that represents the BVH.
-
-
-  _createClass(MeshBVHDebug, [{
-    key: "getJSONStructure",
-    value: function getJSONStructure() {
-      var bvh = this.bvh;
-      var depthStack = [];
-      bvh.traverse(function (depth, isLeaf, boundingData, offset, count) {
-        var info = {
-          bounds: (0, _ArrayBoxUtilities.arrayToBox)(boundingData, new _three.Box3())
-        };
-
-        if (isLeaf) {
-          info.count = count;
-          info.offset = offset;
-        } else {
-          info.left = null;
-          info.right = null;
-        }
-
-        depthStack[depth] = info; // traversal hits the left then right node
-
-        var parent = depthStack[depth - 1];
-
-        if (parent) {
-          if (parent.left === null) {
-            parent.left = info;
-          } else {
-            parent.right = info;
-          }
-        }
-      });
-      return depthStack[0];
-    }
-  }, {
-    key: "validateBounds",
-    value: function validateBounds() {
-      var bvh = this.bvh,
-          geometry = this.geometry;
-      var depthStack = [];
-      var index = geometry.index;
-      var position = geometry.getAttribute('position');
-      var passes = true;
-      bvh.traverse(function (depth, isLeaf, boundingData, offset, count) {
-        var info = {
-          depth: depth,
-          isLeaf: isLeaf,
-          boundingData: boundingData,
-          offset: offset,
-          count: count
-        };
-        depthStack[depth] = info;
-        (0, _ArrayBoxUtilities.arrayToBox)(boundingData, box1);
-        var parent = depthStack[depth - 1];
-
-        if (isLeaf) {
-          // check triangles
-          for (var i = offset * 3, l = (offset + count) * 3; i < l; i += 3) {
-            var i0 = index.getX(i);
-            var i1 = index.getX(i + 1);
-            var i2 = index.getX(i + 2);
-            var isContained = void 0;
-            vec.fromBufferAttribute(position, i0);
-            isContained = box1.containsPoint(vec);
-            vec.fromBufferAttribute(position, i1);
-            isContained = isContained && box1.containsPoint(vec);
-            vec.fromBufferAttribute(position, i2);
-            isContained = isContained && box1.containsPoint(vec);
-            console.assert(isContained, 'Leaf bounds does not fully contain triangle.');
-            passes = passes && isContained;
-          }
-        }
-
-        if (parent) {
-          // check if my bounds fit in my parents
-          (0, _ArrayBoxUtilities.arrayToBox)(boundingData, box2);
-
-          var _isContained = box2.containsBox(box1);
-
-          console.assert(_isContained, 'Parent bounds does not fully contain child.');
-          passes = passes && _isContained;
-        }
-      });
-      return passes;
-    }
-  }]);
-
-  return MeshBVHDebug;
-}();
-
-exports.MeshBVHDebug = MeshBVHDebug;
-},{"three":"../node_modules/three/build/three.module.js","./Utils/ArrayBoxUtilities.js":"../src/Utils/ArrayBoxUtilities.js"}],"../src/index.js":[function(require,module,exports) {
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.acceleratedRaycast = acceleratedRaycast;
-exports.computeBoundsTree = computeBoundsTree;
-exports.disposeBoundsTree = disposeBoundsTree;
-Object.defineProperty(exports, "MeshBVH", {
-  enumerable: true,
-  get: function () {
-    return _MeshBVH.default;
-  }
-});
-Object.defineProperty(exports, "Visualizer", {
-  enumerable: true,
-  get: function () {
-    return _MeshBVHVisualizer.default;
-  }
-});
-Object.defineProperty(exports, "MeshBVHVisualizer", {
-  enumerable: true,
-  get: function () {
-    return _MeshBVHVisualizer.default;
-  }
-});
-Object.defineProperty(exports, "CENTER", {
-  enumerable: true,
-  get: function () {
-    return _Constants.CENTER;
-  }
-});
-Object.defineProperty(exports, "AVERAGE", {
-  enumerable: true,
-  get: function () {
-    return _Constants.AVERAGE;
-  }
-});
-Object.defineProperty(exports, "SAH", {
-  enumerable: true,
-  get: function () {
-    return _Constants.SAH;
-  }
-});
-Object.defineProperty(exports, "NOT_INTERSECTED", {
-  enumerable: true,
-  get: function () {
-    return _Constants.NOT_INTERSECTED;
-  }
-});
-Object.defineProperty(exports, "INTERSECTED", {
-  enumerable: true,
-  get: function () {
-    return _Constants.INTERSECTED;
-  }
-});
-Object.defineProperty(exports, "CONTAINED", {
-  enumerable: true,
-  get: function () {
-    return _Constants.CONTAINED;
-  }
-});
-Object.defineProperty(exports, "getBVHExtremes", {
-  enumerable: true,
-  get: function () {
-    return _Debug.getBVHExtremes;
-  }
-});
-Object.defineProperty(exports, "estimateMemoryInBytes", {
-  enumerable: true,
-  get: function () {
-    return _Debug.estimateMemoryInBytes;
-  }
-});
-Object.defineProperty(exports, "MeshBVHDebug", {
-  enumerable: true,
-  get: function () {
-    return _MeshBVHDebug.MeshBVHDebug;
-  }
-});
-
-var _three = require("three");
-
-var _MeshBVH = _interopRequireDefault(require("./MeshBVH.js"));
-
-var _MeshBVHVisualizer = _interopRequireDefault(require("./MeshBVHVisualizer.js"));
-
-var _Constants = require("./Constants.js");
-
-var _Debug = require("./Utils/Debug.js");
-
-var _MeshBVHDebug = require("./MeshBVHDebug.js");
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-var ray = new _three.Ray();
-var tmpInverseMatrix = new _three.Matrix4();
-var origMeshRaycastFunc = _three.Mesh.prototype.raycast;
-
-function acceleratedRaycast(raycaster, intersects) {
-  if (this.geometry.boundsTree) {
-    if (this.material === undefined) return;
-    tmpInverseMatrix.copy(this.matrixWorld).invert();
-    ray.copy(raycaster.ray).applyMatrix4(tmpInverseMatrix);
-
-    if (raycaster.firstHitOnly === true) {
-      var res = this.geometry.boundsTree.raycastFirst(this, raycaster, ray);
-      if (res) intersects.push(res);
-    } else {
-      this.geometry.boundsTree.raycast(this, raycaster, ray, intersects);
-    }
-  } else {
-    origMeshRaycastFunc.call(this, raycaster, intersects);
-  }
-}
-
-function computeBoundsTree(options) {
-  this.boundsTree = new _MeshBVH.default(this, options);
-  return this.boundsTree;
-}
-
-function disposeBoundsTree() {
-  this.boundsTree = null;
-}
-},{"three":"../node_modules/three/build/three.module.js","./MeshBVH.js":"../src/MeshBVH.js","./MeshBVHVisualizer.js":"../src/MeshBVHVisualizer.js","./Constants.js":"../src/Constants.js","./Utils/Debug.js":"../src/Utils/Debug.js","./MeshBVHDebug.js":"../src/MeshBVHDebug.js"}],"sculpt.js":[function(require,module,exports) {
-"use strict";
-
-require("core-js/modules/es6.array.copy-within");
-
-require("core-js/modules/es6.array.fill");
-
-require("core-js/modules/es6.array.find");
-
-require("core-js/modules/es6.array.find-index");
-
-require("core-js/modules/es7.array.flat-map");
-
-require("core-js/modules/es6.array.from");
-
-require("core-js/modules/es7.array.includes");
-
-require("core-js/modules/es6.array.iterator");
-
-require("core-js/modules/es6.array.of");
-
-require("core-js/modules/es6.array.sort");
-
-require("core-js/modules/es6.array.species");
-
-require("core-js/modules/es6.date.to-json");
-
-require("core-js/modules/es6.date.to-primitive");
-
-require("core-js/modules/es6.function.has-instance");
-
-require("core-js/modules/es6.function.name");
-
-require("core-js/modules/es6.map");
-
-require("core-js/modules/es6.math.acosh");
-
-require("core-js/modules/es6.math.asinh");
-
-require("core-js/modules/es6.math.atanh");
-
-require("core-js/modules/es6.math.cbrt");
-
-require("core-js/modules/es6.math.clz32");
-
-require("core-js/modules/es6.math.cosh");
-
-require("core-js/modules/es6.math.expm1");
-
-require("core-js/modules/es6.math.fround");
-
-require("core-js/modules/es6.math.hypot");
-
-require("core-js/modules/es6.math.imul");
-
-require("core-js/modules/es6.math.log1p");
-
-require("core-js/modules/es6.math.log10");
-
-require("core-js/modules/es6.math.log2");
-
-require("core-js/modules/es6.math.sign");
-
-require("core-js/modules/es6.math.sinh");
-
-require("core-js/modules/es6.math.tanh");
-
-require("core-js/modules/es6.math.trunc");
-
-require("core-js/modules/es6.number.constructor");
-
-require("core-js/modules/es6.number.epsilon");
-
-require("core-js/modules/es6.number.is-finite");
-
-require("core-js/modules/es6.number.is-integer");
-
-require("core-js/modules/es6.number.is-nan");
-
-require("core-js/modules/es6.number.is-safe-integer");
-
-require("core-js/modules/es6.number.max-safe-integer");
-
-require("core-js/modules/es6.number.min-safe-integer");
-
-require("core-js/modules/es6.number.parse-float");
-
-require("core-js/modules/es6.number.parse-int");
-
-require("core-js/modules/es6.object.assign");
-
-require("core-js/modules/es7.object.define-getter");
-
-require("core-js/modules/es7.object.define-setter");
-
-require("core-js/modules/es7.object.entries");
-
-require("core-js/modules/es6.object.freeze");
-
-require("core-js/modules/es6.object.get-own-property-descriptor");
-
-require("core-js/modules/es7.object.get-own-property-descriptors");
-
-require("core-js/modules/es6.object.get-own-property-names");
-
-require("core-js/modules/es6.object.get-prototype-of");
-
-require("core-js/modules/es7.object.lookup-getter");
-
-require("core-js/modules/es7.object.lookup-setter");
-
-require("core-js/modules/es6.object.prevent-extensions");
-
-require("core-js/modules/es6.object.to-string");
-
-require("core-js/modules/es6.object.is");
-
-require("core-js/modules/es6.object.is-frozen");
-
-require("core-js/modules/es6.object.is-sealed");
-
-require("core-js/modules/es6.object.is-extensible");
-
-require("core-js/modules/es6.object.keys");
-
-require("core-js/modules/es6.object.seal");
-
-require("core-js/modules/es6.object.set-prototype-of");
-
-require("core-js/modules/es7.object.values");
-
-require("core-js/modules/es6.promise");
-
-require("core-js/modules/es7.promise.finally");
-
-require("core-js/modules/es6.reflect.apply");
-
-require("core-js/modules/es6.reflect.construct");
-
-require("core-js/modules/es6.reflect.define-property");
-
-require("core-js/modules/es6.reflect.delete-property");
-
-require("core-js/modules/es6.reflect.get");
-
-require("core-js/modules/es6.reflect.get-own-property-descriptor");
-
-require("core-js/modules/es6.reflect.get-prototype-of");
-
-require("core-js/modules/es6.reflect.has");
-
-require("core-js/modules/es6.reflect.is-extensible");
-
-require("core-js/modules/es6.reflect.own-keys");
-
-require("core-js/modules/es6.reflect.prevent-extensions");
-
-require("core-js/modules/es6.reflect.set");
-
-require("core-js/modules/es6.reflect.set-prototype-of");
-
-require("core-js/modules/es6.regexp.constructor");
-
-require("core-js/modules/es6.regexp.flags");
-
-require("core-js/modules/es6.regexp.match");
-
-require("core-js/modules/es6.regexp.replace");
-
-require("core-js/modules/es6.regexp.split");
-
-require("core-js/modules/es6.regexp.search");
-
-require("core-js/modules/es6.regexp.to-string");
-
-require("core-js/modules/es6.set");
-
-require("core-js/modules/es6.symbol");
-
-require("core-js/modules/es7.symbol.async-iterator");
-
-require("core-js/modules/es6.string.anchor");
-
-require("core-js/modules/es6.string.big");
-
-require("core-js/modules/es6.string.blink");
-
-require("core-js/modules/es6.string.bold");
-
-require("core-js/modules/es6.string.code-point-at");
-
-require("core-js/modules/es6.string.ends-with");
-
-require("core-js/modules/es6.string.fixed");
-
-require("core-js/modules/es6.string.fontcolor");
-
-require("core-js/modules/es6.string.fontsize");
-
-require("core-js/modules/es6.string.from-code-point");
-
-require("core-js/modules/es6.string.includes");
-
-require("core-js/modules/es6.string.italics");
-
-require("core-js/modules/es6.string.iterator");
-
-require("core-js/modules/es6.string.link");
-
-require("core-js/modules/es7.string.pad-start");
-
-require("core-js/modules/es7.string.pad-end");
-
-require("core-js/modules/es6.string.raw");
-
-require("core-js/modules/es6.string.repeat");
-
-require("core-js/modules/es6.string.small");
-
-require("core-js/modules/es6.string.starts-with");
-
-require("core-js/modules/es6.string.strike");
-
-require("core-js/modules/es6.string.sub");
-
-require("core-js/modules/es6.string.sup");
-
-require("core-js/modules/es7.string.trim-left");
-
-require("core-js/modules/es7.string.trim-right");
-
-require("core-js/modules/es6.typed.array-buffer");
-
-require("core-js/modules/es6.typed.int8-array");
-
-require("core-js/modules/es6.typed.uint8-array");
-
-require("core-js/modules/es6.typed.uint8-clamped-array");
-
-require("core-js/modules/es6.typed.int16-array");
-
-require("core-js/modules/es6.typed.uint16-array");
-
-require("core-js/modules/es6.typed.int32-array");
-
-require("core-js/modules/es6.typed.uint32-array");
-
-require("core-js/modules/es6.typed.float32-array");
-
-require("core-js/modules/es6.typed.float64-array");
-
-require("core-js/modules/es6.weak-map");
-
-require("core-js/modules/es6.weak-set");
-
-require("core-js/modules/web.timers");
-
-require("core-js/modules/web.immediate");
-
-require("core-js/modules/web.dom.iterable");
-
-require("regenerator-runtime/runtime");
-
-var _Stats = _interopRequireDefault(require("stats.js/src/Stats"));
-
-var dat = _interopRequireWildcard(require("dat.gui"));
-
-var THREE = _interopRequireWildcard(require("three"));
-
-var _OrbitControls = require("three/examples/jsm/controls/OrbitControls.js");
-
-var _BufferGeometryUtils = require("three/examples/jsm/utils/BufferGeometryUtils.js");
-
-var _index = require("../src/index.js");
-
-function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-THREE.Mesh.prototype.raycast = _index.acceleratedRaycast;
-THREE.BufferGeometry.prototype.computeBoundsTree = _index.computeBoundsTree;
-THREE.BufferGeometry.prototype.disposeBoundsTree = _index.disposeBoundsTree;
-var stats;
-var scene, camera, renderer, controls;
-var targetMesh, brush, bvhHelper;
-var normalZ = new THREE.Vector3(0, 0, 1);
-var mouse = new THREE.Vector2(),
-    lastMouse = new THREE.Vector2();
-var mouseState = false,
-    lastMouseState = false;
-var lastCastPose = new THREE.Vector3();
-var matcap;
-var params = {
-  size: 0.1,
-  brush: 'clay',
-  intensity: 50,
-  maxSteps: 1,
-  invert: false,
-  flatShading: false,
-  depth: 10,
-  displayHelper: false
-};
-init();
-render(); // reset the sculpt mesh
-
-function reset() {
-  // dispose of the mesh if it exists
-  if (targetMesh) {
-    targetMesh.geometry.dispose();
-    targetMesh.material.dispose();
-    scene.remove(targetMesh);
-  } // load the mat cap material if it hasn't been made yet
-
-
-  if (!matcap) {
-    matcap = new THREE.TextureLoader().load('../textures/skinHazardousarts2.jpg');
-  } // merge the vertices because they're not already merged
-
-
-  var geometry = new THREE.IcosahedronBufferGeometry(1, 100);
-  geometry.deleteAttribute('uv');
-  geometry = _BufferGeometryUtils.BufferGeometryUtils.mergeVertices(geometry);
-  geometry.attributes.position.setUsage(THREE.DynamicDrawUsage);
-  geometry.attributes.normal.setUsage(THREE.DynamicDrawUsage);
-  geometry.computeBoundsTree();
-  targetMesh = new THREE.Mesh(geometry, new THREE.MeshMatcapMaterial({
-    flatShading: params.flatShading,
-    matcap: matcap
-  }));
-  targetMesh.material.matcap.encoding = THREE.sRGBEncoding;
-  scene.add(targetMesh); // initialize bvh helper
-
-  if (!bvhHelper) {
-    bvhHelper = new _index.MeshBVHVisualizer(targetMesh, params.depth);
-    bvhHelper.visible = params.displayHelper;
-    scene.add(bvhHelper);
-  }
-
-  bvhHelper.mesh = targetMesh;
-  bvhHelper.update();
-}
-
-function init() {
-  var bgColor = 0x263238 / 2; // renderer setup
-
-  renderer = new THREE.WebGLRenderer({
-    antialias: true
-  });
-  renderer.setPixelRatio(window.devicePixelRatio);
-  renderer.setSize(window.innerWidth, window.innerHeight);
-  renderer.setClearColor(bgColor, 1);
-  renderer.gammaOutput = true;
-  document.body.appendChild(renderer.domElement); // scene setup
-
-  scene = new THREE.Scene();
-  scene.fog = new THREE.Fog(0x263238 / 2, 20, 60);
-  var light = new THREE.DirectionalLight(0xffffff, 0.5);
-  light.position.set(1, 1, 1);
-  scene.add(light);
-  scene.add(new THREE.AmbientLight(0xffffff, 0.4)); // geometry setup
-
-  reset(); // initialize brush cursor
-
-  var brushSegments = [new THREE.Vector3(), new THREE.Vector3(0, 0, 1)];
-
-  for (var i = 0; i < 50; i++) {
-    var nexti = i + 1;
-    var x1 = Math.sin(2 * Math.PI * i / 50);
-    var y1 = Math.cos(2 * Math.PI * i / 50);
-    var x2 = Math.sin(2 * Math.PI * nexti / 50);
-    var y2 = Math.cos(2 * Math.PI * nexti / 50);
-    brushSegments.push(new THREE.Vector3(x1, y1, 0), new THREE.Vector3(x2, y2, 0));
-  }
-
-  brush = new THREE.LineSegments();
-  brush.geometry.setFromPoints(brushSegments);
-  brush.material.color.set(0xfb8c00);
-  scene.add(brush); // camera setup
-
-  camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 50);
-  camera.position.set(3, 3, 3);
-  camera.far = 100;
-  camera.updateProjectionMatrix();
-  controls = new _OrbitControls.OrbitControls(camera, renderer.domElement);
-  controls.minDistance = 1.5; // stats setup
-
-  stats = new _Stats.default();
-  document.body.appendChild(stats.dom);
-  var gui = new dat.GUI();
-  var sculptFolder = gui.addFolder('Sculpting');
-  sculptFolder.add(params, 'brush', ['normal', 'clay', 'flatten']);
-  sculptFolder.add(params, 'size').min(0.025).max(0.25).step(0.005);
-  sculptFolder.add(params, 'intensity').min(1).max(100).step(1); // sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
-
-  sculptFolder.add(params, 'invert');
-  sculptFolder.add(params, 'flatShading').onChange(function (value) {
-    targetMesh.material.flatShading = value;
-    targetMesh.material.needsUpdate = true;
-  });
-  sculptFolder.open();
-  var helperFolder = gui.addFolder('BVH Helper');
-  helperFolder.add(params, 'depth').min(1).max(20).step(1).onChange(function (d) {
-    bvhHelper.depth = parseFloat(d);
-    bvhHelper.update();
-  });
-  helperFolder.add(params, 'displayHelper').onChange(function (display) {
-    bvhHelper.visible = display;
-  });
-  helperFolder.open();
-  gui.add({
-    reset: reset
-  }, 'reset');
-  gui.add({
-    rebuildBVH: function rebuildBVH() {
-      targetMesh.geometry.computeBoundsTree();
-      bvhHelper.update();
-    }
-  }, 'rebuildBVH');
-  gui.open();
-  controls.addEventListener('start', function () {
-    this.active = true;
-  });
-  controls.addEventListener('end', function () {
-    this.active = false;
-  });
-  window.addEventListener('resize', function () {
-    camera.aspect = window.innerWidth / window.innerHeight;
-    camera.updateProjectionMatrix();
-    renderer.setSize(window.innerWidth, window.innerHeight);
-  }, false);
-  window.addEventListener('mousemove', function (e) {
-    mouse.x = e.clientX / window.innerWidth * 2 - 1;
-    mouse.y = -(e.clientY / window.innerHeight) * 2 + 1;
-  });
-  window.addEventListener('mousedown', function (e) {
-    mouseState = Boolean(e.buttons & 1);
-  });
-  window.addEventListener('mouseup', function (e) {
-    mouseState = Boolean(e.buttons & 1);
-  });
-  window.addEventListener('contextmenu', function (e) {
-    e.preventDefault();
-  });
-  window.addEventListener('wheel', function (e) {
-    var delta = e.deltaY;
-
-    if (e.deltaMode === 1) {
-      delta *= 40;
-    }
-
-    if (e.deltaMode === 2) {
-      delta *= 40;
-    }
-
-    params.size += delta * 0.0005;
-    params.size = Math.max(Math.min(params.size, 0.25), 0.025);
-    gui.updateDisplay();
-  });
-} // Run the perform the brush movement
-
-
-function performStroke(point) {
-  var brushOnly = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
-  var inverseMatrix = new THREE.Matrix4();
-  inverseMatrix.copy(targetMesh.matrixWorld).invert();
-  var sphere = new THREE.Sphere();
-  sphere.center.copy(point).applyMatrix4(inverseMatrix);
-  sphere.radius = params.size; // Collect the intersected vertices
-
-  var indices = new Set();
-  var tempVec = new THREE.Vector3();
-  var tempVec2 = new THREE.Vector3();
-  var normal = new THREE.Vector3();
-  var bvh = targetMesh.geometry.boundsTree;
-  bvh.shapecast(targetMesh, function (box) {
-    var intersects = sphere.intersectsBox(box);
-    var min = box.min,
-        max = box.max;
-
-    if (intersects) {
-      for (var x = 0; x <= 1; x++) {
-        for (var y = 0; y <= 1; y++) {
-          for (var z = 0; z <= 1; z++) {
-            tempVec.set(x === 0 ? min.x : max.x, y === 0 ? min.y : max.y, z === 0 ? min.z : max.z);
-
-            if (!sphere.containsPoint(tempVec)) {
-              return _index.INTERSECTED;
-            }
-          }
-        }
-      }
-
-      return _index.CONTAINED;
-    }
-
-    return intersects ? _index.INTERSECTED : _index.NOT_INTERSECTED;
-  }, function (tri, a, b, c, contained) {
-    if (contained) {
-      indices.add(a);
-      indices.add(b);
-      indices.add(c);
-    } else {
-      if (sphere.containsPoint(tri.a)) {
-        indices.add(a);
-      }
-
-      if (sphere.containsPoint(tri.b)) {
-        indices.add(b);
-      }
-
-      if (sphere.containsPoint(tri.c)) {
-        indices.add(c);
-      }
-    }
-
-    return false;
-  }); // Compute the average normal at this point
-
-  var indexAttr = targetMesh.geometry.index;
-  var posAttr = targetMesh.geometry.attributes.position;
-  var normalAttr = targetMesh.geometry.attributes.normal;
-  tempVec2.copy(point).applyMatrix4(inverseMatrix);
-  indices.forEach(function (i) {
-    var index = indexAttr.getX(i);
-    tempVec.fromBufferAttribute(normalAttr, index);
-    normal.add(tempVec);
-  });
-  normal.normalize();
-  brush.quaternion.setFromUnitVectors(normalZ, normal); // Early out if we just want to adjust the brush
-
-  if (brushOnly) {
-    return;
-  } // perform vertex adjustment
-
-
-  var targetHeight = params.intensity * 0.000025;
-  var plane = new THREE.Plane();
-  plane.setFromNormalAndCoplanarPoint(normal, point);
-  var indexToTriangles = {};
-  indices.forEach(function (i) {
-    var index = indexAttr.getX(i);
-    tempVec.fromBufferAttribute(posAttr, index); // compute the offset intensity
-
-    var dist = tempVec.distanceTo(tempVec2);
-    var intensity = 1.0 - dist / params.size;
-    intensity = Math.pow(intensity, 3);
-
-    if (params.invert) {
-      intensity *= -1;
-    } // offset the vertex
-
-
-    if (params.brush === 'clay') {
-      var planeDist = plane.distanceToPoint(tempVec);
-      var clampedIntensity = Math.min(intensity * 5, 1);
-      tempVec.addScaledVector(normal, clampedIntensity * targetHeight - planeDist * clampedIntensity * 0.5);
-    } else if (params.brush === 'normal') {
-      tempVec.addScaledVector(normal, intensity * targetHeight);
-    } else if (params.brush === 'flatten') {
-      var _planeDist = plane.distanceToPoint(tempVec);
-
-      tempVec.addScaledVector(normal, -_planeDist * intensity * params.intensity * 0.01);
-    }
-
-    posAttr.setXYZ(index, tempVec.x, tempVec.y, tempVec.z); // save all the triangles that are connected to this vertex
-
-    var arr = indexToTriangles[index];
-
-    if (!arr) {
-      arr = indexToTriangles[index] = [];
-    }
-
-    arr.push(~~(i / 3));
-  }); // If we found vertices
-
-  if (indices.size) {
-    // compute the new vertex normal
-    // TODO: this can be improved by computing the normal vertices in place in
-    // the buffer then normalizing them and avoiding recomputing the normal for the
-    // same triangles multiple times
-    var triangle = new THREE.Triangle();
-
-    for (var index in indexToTriangles) {
-      tempVec.set(0, 0, 0);
-      var arr = indexToTriangles[index];
-
-      for (var tri in arr) {
-        var i3 = arr[tri] * 3;
-        triangle.a.fromBufferAttribute(posAttr, indexAttr.getX(i3 + 0));
-        triangle.b.fromBufferAttribute(posAttr, indexAttr.getX(i3 + 1));
-        triangle.c.fromBufferAttribute(posAttr, indexAttr.getX(i3 + 2));
-        triangle.getNormal(tempVec2);
-        tempVec.add(tempVec2);
-      }
-
-      tempVec.normalize();
-      normalAttr.setXYZ(index, tempVec.x, tempVec.y, tempVec.z);
-    }
-
-    posAttr.needsUpdate = true;
-    normalAttr.needsUpdate = true; // TODO: refit bounds here once it's optimized
-  }
-}
-
-function render() {
-  requestAnimationFrame(render);
-  stats.begin();
-
-  if (controls.active) {
-    // If the controls are being used then don't perform the strokes
-    brush.visible = false;
-    lastCastPose.setScalar(Infinity);
-  } else {
-    var raycaster = new THREE.Raycaster();
-    raycaster.setFromCamera(mouse, camera);
-    raycaster.firstHitOnly = true;
-    var hit = raycaster.intersectObject(targetMesh, true)[0]; // if we hit the target mesh
-
-    if (hit) {
-      brush.visible = true;
-      brush.scale.set(params.size, params.size, 0.1);
-      brush.position.copy(hit.point);
-      brush.quaternion.setFromUnitVectors(normalZ, hit.face.normal);
-      controls.enabled = false; // if the last cast pose was missed in the last frame then set it to
-      // the current point so we don't streak across the surface
-
-      if (lastCastPose.x === Infinity) {
-        lastCastPose.copy(hit.point);
-      } // If the mouse isn't pressed don't perform the stroke
-
-
-      if (!(mouseState || lastMouseState)) {
-        performStroke(hit.point, true);
-        lastMouse.copy(mouse);
-        lastCastPose.copy(hit.point);
-      } else {
-        // compute the distance the mouse moved and that the cast point moved
-        var mdx = (mouse.x - lastMouse.x) * window.innerWidth * window.devicePixelRatio;
-        var mdy = (mouse.y - lastMouse.y) * window.innerHeight * window.devicePixelRatio;
-        var mdist = Math.sqrt(mdx * mdx + mdy * mdy);
-        var castDist = hit.point.distanceTo(lastCastPose);
-        var step = params.size * 0.15;
-        var percent = Math.max(step / castDist, 1 / params.maxSteps);
-        var mstep = mdist * percent;
-        var stepCount = 0; // perform multiple iterations toward the current mouse pose for a consistent stroke
-        // TODO: recast here so he cursor is on the surface of the model which requires faster
-        // refitting of the model
-
-        while (castDist > step && mdist > params.size * 200 / hit.distance) {
-          lastMouse.lerp(mouse, percent);
-          lastCastPose.lerp(hit.point, percent);
-          castDist -= step;
-          mdist -= mstep;
-          performStroke(lastCastPose, false);
-          stepCount++;
-
-          if (stepCount > params.maxSteps) {
-            break;
-          }
-        } // refit the bounds if we adjusted the mesh
-
-
-        if (stepCount > 0) {
-          targetMesh.geometry.boundsTree.refit(targetMesh.geometry);
-          bvhHelper.update();
-        } else {
-          performStroke(hit.point, true);
-        }
-      }
-    } else {
-      // if we didn't hit
-      controls.enabled = true;
-      brush.visible = false;
-      lastMouse.copy(mouse);
-      lastCastPose.setScalar(Infinity);
-    }
-  }
-
-  lastMouseState = mouseState;
-  renderer.render(scene, camera);
-  stats.end();
-}
-},{"core-js/modules/es6.array.copy-within":"../node_modules/core-js/modules/es6.array.copy-within.js","core-js/modules/es6.array.fill":"../node_modules/core-js/modules/es6.array.fill.js","core-js/modules/es6.array.find":"../node_modules/core-js/modules/es6.array.find.js","core-js/modules/es6.array.find-index":"../node_modules/core-js/modules/es6.array.find-index.js","core-js/modules/es7.array.flat-map":"../node_modules/core-js/modules/es7.array.flat-map.js","core-js/modules/es6.array.from":"../node_modules/core-js/modules/es6.array.from.js","core-js/modules/es7.array.includes":"../node_modules/core-js/modules/es7.array.includes.js","core-js/modules/es6.array.iterator":"../node_modules/core-js/modules/es6.array.iterator.js","core-js/modules/es6.array.of":"../node_modules/core-js/modules/es6.array.of.js","core-js/modules/es6.array.sort":"../node_modules/core-js/modules/es6.array.sort.js","core-js/modules/es6.array.species":"../node_modules/core-js/modules/es6.array.species.js","core-js/modules/es6.date.to-json":"../node_modules/core-js/modules/es6.date.to-json.js","core-js/modules/es6.date.to-primitive":"../node_modules/core-js/modules/es6.date.to-primitive.js","core-js/modules/es6.function.has-instance":"../node_modules/core-js/modules/es6.function.has-instance.js","core-js/modules/es6.function.name":"../node_modules/core-js/modules/es6.function.name.js","core-js/modules/es6.map":"../node_modules/core-js/modules/es6.map.js","core-js/modules/es6.math.acosh":"../node_modules/core-js/modules/es6.math.acosh.js","core-js/modules/es6.math.asinh":"../node_modules/core-js/modules/es6.math.asinh.js","core-js/modules/es6.math.atanh":"../node_modules/core-js/modules/es6.math.atanh.js","core-js/modules/es6.math.cbrt":"../node_modules/core-js/modules/es6.math.cbrt.js","core-js/modules/es6.math.clz32":"../node_modules/core-js/modules/es6.math.clz32.js","core-js/modules/es6.math.cosh":"../node_modules/core-js/modules/es6.math.cosh.js","core-js/modules/es6.math.expm1":"../node_modules/core-js/modules/es6.math.expm1.js","core-js/modules/es6.math.fround":"../node_modules/core-js/modules/es6.math.fround.js","core-js/modules/es6.math.hypot":"../node_modules/core-js/modules/es6.math.hypot.js","core-js/modules/es6.math.imul":"../node_modules/core-js/modules/es6.math.imul.js","core-js/modules/es6.math.log1p":"../node_modules/core-js/modules/es6.math.log1p.js","core-js/modules/es6.math.log10":"../node_modules/core-js/modules/es6.math.log10.js","core-js/modules/es6.math.log2":"../node_modules/core-js/modules/es6.math.log2.js","core-js/modules/es6.math.sign":"../node_modules/core-js/modules/es6.math.sign.js","core-js/modules/es6.math.sinh":"../node_modules/core-js/modules/es6.math.sinh.js","core-js/modules/es6.math.tanh":"../node_modules/core-js/modules/es6.math.tanh.js","core-js/modules/es6.math.trunc":"../node_modules/core-js/modules/es6.math.trunc.js","core-js/modules/es6.number.constructor":"../node_modules/core-js/modules/es6.number.constructor.js","core-js/modules/es6.number.epsilon":"../node_modules/core-js/modules/es6.number.epsilon.js","core-js/modules/es6.number.is-finite":"../node_modules/core-js/modules/es6.number.is-finite.js","core-js/modules/es6.number.is-integer":"../node_modules/core-js/modules/es6.number.is-integer.js","core-js/modules/es6.number.is-nan":"../node_modules/core-js/modules/es6.number.is-nan.js","core-js/modules/es6.number.is-safe-integer":"../node_modules/core-js/modules/es6.number.is-safe-integer.js","core-js/modules/es6.number.max-safe-integer":"../node_modules/core-js/modules/es6.number.max-safe-integer.js","core-js/modules/es6.number.min-safe-integer":"../node_modules/core-js/modules/es6.number.min-safe-integer.js","core-js/modules/es6.number.parse-float":"../node_modules/core-js/modules/es6.number.parse-float.js","core-js/modules/es6.number.parse-int":"../node_modules/core-js/modules/es6.number.parse-int.js","core-js/modules/es6.object.assign":"../node_modules/core-js/modules/es6.object.assign.js","core-js/modules/es7.object.define-getter":"../node_modules/core-js/modules/es7.object.define-getter.js","core-js/modules/es7.object.define-setter":"../node_modules/core-js/modules/es7.object.define-setter.js","core-js/modules/es7.object.entries":"../node_modules/core-js/modules/es7.object.entries.js","core-js/modules/es6.object.freeze":"../node_modules/core-js/modules/es6.object.freeze.js","core-js/modules/es6.object.get-own-property-descriptor":"../node_modules/core-js/modules/es6.object.get-own-property-descriptor.js","core-js/modules/es7.object.get-own-property-descriptors":"../node_modules/core-js/modules/es7.object.get-own-property-descriptors.js","core-js/modules/es6.object.get-own-property-names":"../node_modules/core-js/modules/es6.object.get-own-property-names.js","core-js/modules/es6.object.get-prototype-of":"../node_modules/core-js/modules/es6.object.get-prototype-of.js","core-js/modules/es7.object.lookup-getter":"../node_modules/core-js/modules/es7.object.lookup-getter.js","core-js/modules/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-    if (data.type === 'error') {
-      console.error('[parcel] 🚨  ' + data.error.message + '\n' + data.error.stack);
-      removeErrorOverlay();
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-function createErrorOverlay(data) {
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0,exports.sRGBEncoding=exports.ZeroStencilOp=exports.ZeroSlopeEnding=exports.ZeroFactor=exports.ZeroCurvatureEnding=exports.WrapAroundEnding=exports.WireframeGeometry=exports.WebGLRenderTarget=exports.WebGLMultisampleRenderTarget=exports.WebGLCubeRenderTarget=exports.WebGL1Renderer=exports.VideoTexture=exports.VertexColors=exports.VectorKeyframeTrack=exports.Vector4=exports.Vector3=exports.Vector2=exports.VSMShadowMap=exports.UnsignedShortType=exports.UnsignedShort565Type=exports.UnsignedShort5551Type=exports.UnsignedShort4444Type=exports.UnsignedIntType=exports.UnsignedInt248Type=exports.UnsignedByteType=exports.UniformsUtils=exports.UniformsLib=exports.Uniform=exports.UVMapping=exports.TubeGeometry=exports.TubeBufferGeometry=exports.TrianglesDrawMode=exports.TriangleStripDrawMode=exports.TriangleFanDrawMode=exports.Triangle=exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=exports.TorusGeometry=exports.TorusBufferGeometry=exports.Texture=exports.TextGeometry=exports.TextBufferGeometry=exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=exports.TangentSpaceNormalMap=exports.TOUCH=exports.SubtractiveBlending=exports.SubtractEquation=exports.StringKeyframeTrack=exports.StreamReadUsage=exports.StreamDrawUsage=exports.StreamCopyUsage=exports.StereoCamera=exports.StaticReadUsage=exports.StaticDrawUsage=exports.StaticCopyUsage=exports.SrcColorFactor=exports.SrcAlphaSaturateFactor=exports.SrcAlphaFactor=exports.SpriteMaterial=exports.Sprite=exports.SpotLightHelper=exports.SpotLight=exports.SplineCurve=exports.SphericalHarmonics3=exports.Spherical=exports.SphereGeometry=exports.SphereBufferGeometry=exports.Sphere=exports.SmoothShading=exports.SkeletonHelper=exports.Skeleton=exports.ShortType=exports.ShapeUtils=exports.ShapePath=exports.ShapeGeometry=void 0;const t="126";exports.REVISION="126";const e={LEFT:0,MIDDLE:1,RIGHT:2,ROTATE:0,DOLLY:1,PAN:2};exports.MOUSE=e;const n={ROTATE:0,PAN:1,DOLLY_PAN:2,DOLLY_ROTATE:3};exports.TOUCH=n;const r=0;exports.CullFaceNone=r;const i=1;exports.CullFaceBack=i;const s=2;exports.CullFaceFront=s;const o=3;exports.CullFaceFrontBack=3;const a=0;exports.BasicShadowMap=0;const l=1;exports.PCFShadowMap=l;const c=2;exports.PCFSoftShadowMap=c;const h=3;exports.VSMShadowMap=h;const u=0;exports.FrontSide=u;const p=1;exports.BackSide=p;const d=2;exports.DoubleSide=d;const m=1;exports.FlatShading=1;const f=2;exports.SmoothShading=2;const g=0;exports.NoBlending=g;const x=1;exports.NormalBlending=x;const v=2;exports.AdditiveBlending=v;const y=3;exports.SubtractiveBlending=y;const _=4;exports.MultiplyBlending=_;const b=5;exports.CustomBlending=b;const w=100;exports.AddEquation=w;const M=101;exports.SubtractEquation=M;const S=102;exports.ReverseSubtractEquation=S;const T=103;exports.MinEquation=T;const E=104;exports.MaxEquation=E;const A=200;exports.ZeroFactor=A;const L=201;exports.OneFactor=L;const R=202;exports.SrcColorFactor=R;const C=203;exports.OneMinusSrcColorFactor=C;const P=204;exports.SrcAlphaFactor=P;const D=205;exports.OneMinusSrcAlphaFactor=D;const I=206;exports.DstAlphaFactor=I;const B=207;exports.OneMinusDstAlphaFactor=B;const N=208;exports.DstColorFactor=N;const F=209;exports.OneMinusDstColorFactor=F;const O=210;exports.SrcAlphaSaturateFactor=O;const z=0;exports.NeverDepth=z;const G=1;exports.AlwaysDepth=G;const H=2;exports.LessDepth=H;const U=3;exports.LessEqualDepth=U;const k=4;exports.EqualDepth=k;const V=5;exports.GreaterEqualDepth=V;const W=6;exports.GreaterDepth=W;const j=7;exports.NotEqualDepth=j;const q=0;exports.MultiplyOperation=q;const X=1;exports.MixOperation=X;const Y=2;exports.AddOperation=Y;const Z=0;exports.NoToneMapping=Z;const J=1;exports.LinearToneMapping=J;const Q=2;exports.ReinhardToneMapping=Q;const K=3;exports.CineonToneMapping=K;const $=4;exports.ACESFilmicToneMapping=$;const tt=5;exports.CustomToneMapping=tt;const et=300;exports.UVMapping=et;const nt=301;exports.CubeReflectionMapping=nt;const rt=302;exports.CubeRefractionMapping=rt;const it=303;exports.EquirectangularReflectionMapping=it;const st=304;exports.EquirectangularRefractionMapping=st;const ot=306;exports.CubeUVReflectionMapping=ot;const at=307;exports.CubeUVRefractionMapping=at;const lt=1e3;exports.RepeatWrapping=lt;const ct=1001;exports.ClampToEdgeWrapping=ct;const ht=1002;exports.MirroredRepeatWrapping=ht;const ut=1003;exports.NearestFilter=ut;const pt=1004;exports.NearestMipmapNearestFilter=pt;const dt=1004;exports.NearestMipMapNearestFilter=1004;const mt=1005;exports.NearestMipmapLinearFilter=mt;const ft=1005;exports.NearestMipMapLinearFilter=1005;const gt=1006;exports.LinearFilter=gt;const xt=1007;exports.LinearMipmapNearestFilter=xt;const vt=1007;exports.LinearMipMapNearestFilter=1007;const yt=1008;exports.LinearMipmapLinearFilter=yt;const _t=1008;exports.LinearMipMapLinearFilter=1008;const bt=1009;exports.UnsignedByteType=bt;const wt=1010;exports.ByteType=wt;const Mt=1011;exports.ShortType=Mt;const St=1012;exports.UnsignedShortType=St;const Tt=1013;exports.IntType=Tt;const Et=1014;exports.UnsignedIntType=Et;const At=1015;exports.FloatType=At;const Lt=1016;exports.HalfFloatType=Lt;const Rt=1017;exports.UnsignedShort4444Type=Rt;const Ct=1018;exports.UnsignedShort5551Type=Ct;const Pt=1019;exports.UnsignedShort565Type=Pt;const Dt=1020;exports.UnsignedInt248Type=Dt;const It=1021;exports.AlphaFormat=It;const Bt=1022;exports.RGBFormat=Bt;const Nt=1023;exports.RGBAFormat=Nt;const Ft=1024;exports.LuminanceFormat=Ft;const Ot=1025;exports.LuminanceAlphaFormat=Ot;const zt=Nt;exports.RGBEFormat=zt;const Gt=1026;exports.DepthFormat=Gt;const Ht=1027;exports.DepthStencilFormat=Ht;const Ut=1028;exports.RedFormat=Ut;const kt=1029;exports.RedIntegerFormat=kt;const Vt=1030;exports.RGFormat=Vt;const Wt=1031;exports.RGIntegerFormat=Wt;const jt=1032;exports.RGBIntegerFormat=jt;const qt=1033;exports.RGBAIntegerFormat=qt;const Xt=33776;exports.RGB_S3TC_DXT1_Format=Xt;const Yt=33777;exports.RGBA_S3TC_DXT1_Format=Yt;const Zt=33778;exports.RGBA_S3TC_DXT3_Format=Zt;const Jt=33779;exports.RGBA_S3TC_DXT5_Format=Jt;const Qt=35840;exports.RGB_PVRTC_4BPPV1_Format=Qt;const Kt=35841;exports.RGB_PVRTC_2BPPV1_Format=Kt;const $t=35842;exports.RGBA_PVRTC_4BPPV1_Format=$t;const te=35843;exports.RGBA_PVRTC_2BPPV1_Format=te;const ee=36196;exports.RGB_ETC1_Format=ee;const ne=37492;exports.RGB_ETC2_Format=ne;const re=37496;exports.RGBA_ETC2_EAC_Format=re;const ie=37808;exports.RGBA_ASTC_4x4_Format=ie;const se=37809;exports.RGBA_ASTC_5x4_Format=se;const oe=37810;exports.RGBA_ASTC_5x5_Format=oe;const ae=37811;exports.RGBA_ASTC_6x5_Format=ae;const le=37812;exports.RGBA_ASTC_6x6_Format=le;const ce=37813;exports.RGBA_ASTC_8x5_Format=ce;const he=37814;exports.RGBA_ASTC_8x6_Format=he;const ue=37815;exports.RGBA_ASTC_8x8_Format=ue;const pe=37816;exports.RGBA_ASTC_10x5_Format=pe;const de=37817;exports.RGBA_ASTC_10x6_Format=de;const me=37818;exports.RGBA_ASTC_10x8_Format=me;const fe=37819;exports.RGBA_ASTC_10x10_Format=fe;const ge=37820;exports.RGBA_ASTC_12x10_Format=ge;const xe=37821;exports.RGBA_ASTC_12x12_Format=xe;const ve=36492;exports.RGBA_BPTC_Format=ve;const ye=37840;exports.SRGB8_ALPHA8_ASTC_4x4_Format=ye;const _e=37841;exports.SRGB8_ALPHA8_ASTC_5x4_Format=_e;const be=37842;exports.SRGB8_ALPHA8_ASTC_5x5_Format=be;const we=37843;exports.SRGB8_ALPHA8_ASTC_6x5_Format=we;const Me=37844;exports.SRGB8_ALPHA8_ASTC_6x6_Format=Me;const Se=37845;exports.SRGB8_ALPHA8_ASTC_8x5_Format=Se;const Te=37846;exports.SRGB8_ALPHA8_ASTC_8x6_Format=Te;const Ee=37847;exports.SRGB8_ALPHA8_ASTC_8x8_Format=Ee;const Ae=37848;exports.SRGB8_ALPHA8_ASTC_10x5_Format=Ae;const Le=37849;exports.SRGB8_ALPHA8_ASTC_10x6_Format=Le;const Re=37850;exports.SRGB8_ALPHA8_ASTC_10x8_Format=Re;const Ce=37851;exports.SRGB8_ALPHA8_ASTC_10x10_Format=Ce;const Pe=37852;exports.SRGB8_ALPHA8_ASTC_12x10_Format=Pe;const De=37853;exports.SRGB8_ALPHA8_ASTC_12x12_Format=De;const Ie=2200;exports.LoopOnce=Ie;const Be=2201;exports.LoopRepeat=Be;const Ne=2202;exports.LoopPingPong=Ne;const Fe=2300;exports.InterpolateDiscrete=Fe;const Oe=2301;exports.InterpolateLinear=Oe;const ze=2302;exports.InterpolateSmooth=ze;const Ge=2400;exports.ZeroCurvatureEnding=Ge;const He=2401;exports.ZeroSlopeEnding=He;const Ue=2402;exports.WrapAroundEnding=Ue;const ke=2500;exports.NormalAnimationBlendMode=ke;const Ve=2501;exports.AdditiveAnimationBlendMode=Ve;const We=0;exports.TrianglesDrawMode=0;const je=1;exports.TriangleStripDrawMode=1;const qe=2;exports.TriangleFanDrawMode=2;const Xe=3e3;exports.LinearEncoding=Xe;const Ye=3001;exports.sRGBEncoding=Ye;const Ze=3007;exports.GammaEncoding=Ze;const Je=3002;exports.RGBEEncoding=Je;const Qe=3003;exports.LogLuvEncoding=Qe;const Ke=3004;exports.RGBM7Encoding=Ke;const $e=3005;exports.RGBM16Encoding=$e;const tn=3006;exports.RGBDEncoding=tn;const en=3200;exports.BasicDepthPacking=en;const nn=3201;exports.RGBADepthPacking=nn;const rn=0;exports.TangentSpaceNormalMap=rn;const sn=1;exports.ObjectSpaceNormalMap=sn;const on=0;exports.ZeroStencilOp=0;const an=7680;exports.KeepStencilOp=an;const ln=7681;exports.ReplaceStencilOp=7681;const cn=7682;exports.IncrementStencilOp=7682;const hn=7683;exports.DecrementStencilOp=7683;const un=34055;exports.IncrementWrapStencilOp=34055;const pn=34056;exports.DecrementWrapStencilOp=34056;const dn=5386;exports.InvertStencilOp=5386;const mn=512;exports.NeverStencilFunc=512;const fn=513;exports.LessStencilFunc=513;const gn=514;exports.EqualStencilFunc=514;const xn=515;exports.LessEqualStencilFunc=515;const vn=516;exports.GreaterStencilFunc=516;const yn=517;exports.NotEqualStencilFunc=517;const _n=518;exports.GreaterEqualStencilFunc=518;const bn=519;exports.AlwaysStencilFunc=bn;const wn=35044;exports.StaticDrawUsage=wn;const Mn=35048;exports.DynamicDrawUsage=Mn;const Sn=35040;exports.StreamDrawUsage=35040;const Tn=35045;exports.StaticReadUsage=35045;const En=35049;exports.DynamicReadUsage=35049;const An=35041;exports.StreamReadUsage=35041;const Ln=35046;exports.StaticCopyUsage=35046;const Rn=35050;exports.DynamicCopyUsage=35050;const Cn=35042;exports.StreamCopyUsage=35042;const Pn="100";exports.GLSL1="100";const Dn="300 es";function In(){}exports.GLSL3=Dn,Object.assign(In.prototype,{addEventListener:function(t,e){void 0===this._listeners&&(this._listeners={});const n=this._listeners;void 0===n[t]&&(n[t]=[]),-1===n[t].indexOf(e)&&n[t].push(e)},hasEventListener:function(t,e){if(void 0===this._listeners)return!1;const n=this._listeners;return void 0!==n[t]&&-1!==n[t].indexOf(e)},removeEventListener:function(t,e){if(void 0===this._listeners)return;const n=this._listeners[t];if(void 0!==n){const t=n.indexOf(e);-1!==t&&n.splice(t,1)}},dispatchEvent:function(t){if(void 0===this._listeners)return;const e=this._listeners[t.type];if(void 0!==e){t.target=this;const n=e.slice(0);for(let e=0,r=n.length;e<r;e++)n[e].call(this,t)}}});const Bn=[];for(let yx=0;yx<256;yx++)Bn[yx]=(yx<16?"0":"")+yx.toString(16);let Nn=1234567;const Fn={DEG2RAD:Math.PI/180,RAD2DEG:180/Math.PI,generateUUID:function(){const t=4294967295*Math.random()|0,e=4294967295*Math.random()|0,n=4294967295*Math.random()|0,r=4294967295*Math.random()|0;return(Bn[255&t]+Bn[t>>8&255]+Bn[t>>16&255]+Bn[t>>24&255]+"-"+Bn[255&e]+Bn[e>>8&255]+"-"+Bn[e>>16&15|64]+Bn[e>>24&255]+"-"+Bn[63&n|128]+Bn[n>>8&255]+"-"+Bn[n>>16&255]+Bn[n>>24&255]+Bn[255&r]+Bn[r>>8&255]+Bn[r>>16&255]+Bn[r>>24&255]).toUpperCase()},clamp:function(t,e,n){return Math.max(e,Math.min(n,t))},euclideanModulo:function(t,e){return(t%e+e)%e},mapLinear:function(t,e,n,r,i){return r+(t-e)*(i-r)/(n-e)},lerp:function(t,e,n){return(1-n)*t+n*e},damp:function(t,e,n,r){return Fn.lerp(t,e,1-Math.exp(-n*r))},pingpong:function(t,e=1){return e-Math.abs(Fn.euclideanModulo(t,2*e)-e)},smoothstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*(3-2*t)},smootherstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*t*(t*(6*t-15)+10)},randInt:function(t,e){return t+Math.floor(Math.random()*(e-t+1))},randFloat:function(t,e){return t+Math.random()*(e-t)},randFloatSpread:function(t){return t*(.5-Math.random())},seededRandom:function(t){return void 0!==t&&(Nn=t%2147483647),((Nn=16807*Nn%2147483647)-1)/2147483646},degToRad:function(t){return t*Fn.DEG2RAD},radToDeg:function(t){return t*Fn.RAD2DEG},isPowerOfTwo:function(t){return 0==(t&t-1)&&0!==t},ceilPowerOfTwo:function(t){return Math.pow(2,Math.ceil(Math.log(t)/Math.LN2))},floorPowerOfTwo:function(t){return Math.pow(2,Math.floor(Math.log(t)/Math.LN2))},setQuaternionFromProperEuler:function(t,e,n,r,i){const s=Math.cos,o=Math.sin,a=s(n/2),l=o(n/2),c=s((e+r)/2),h=o((e+r)/2),u=s((e-r)/2),p=o((e-r)/2),d=s((r-e)/2),m=o((r-e)/2);switch(i){case"XYX":t.set(a*h,l*u,l*p,a*c);break;case"YZY":t.set(l*p,a*h,l*u,a*c);break;case"ZXZ":t.set(l*u,l*p,a*h,a*c);break;case"XZX":t.set(a*h,l*m,l*d,a*c);break;case"YXY":t.set(l*d,a*h,l*m,a*c);break;case"ZYZ":t.set(l*m,l*d,a*h,a*c);break;default:console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+i)}}};exports.MathUtils=exports.Math=Fn;class On{constructor(t=0,e=0){this.x=t,this.y=e}get width(){return this.x}set width(t){this.x=t}get height(){return this.y}set height(t){this.y=t}set(t,e){return this.x=t,this.y=e,this}setScalar(t){return this.x=t,this.y=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y)}copy(t){return this.x=t.x,this.y=t.y,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this)}addScalar(t){return this.x+=t,this.y+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this)}subScalar(t){return this.x-=t,this.y-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this}multiply(t){return this.x*=t.x,this.y*=t.y,this}multiplyScalar(t){return this.x*=t,this.y*=t,this}divide(t){return this.x/=t.x,this.y/=t.y,this}divideScalar(t){return this.multiplyScalar(1/t)}applyMatrix3(t){const e=this.x,n=this.y,r=t.elements;return this.x=r[0]*e+r[3]*n+r[6],this.y=r[1]*e+r[4]*n+r[7],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this}negate(){return this.x=-this.x,this.y=-this.y,this}dot(t){return this.x*t.x+this.y*t.y}cross(t){return this.x*t.y-this.y*t.x}lengthSq(){return this.x*this.x+this.y*this.y}length(){return Math.sqrt(this.x*this.x+this.y*this.y)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)}normalize(){return this.divideScalar(this.length()||1)}angle(){return Math.atan2(-this.y,-this.x)+Math.PI}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y;return e*e+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this}equals(t){return t.x===this.x&&t.y===this.y}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this}rotateAround(t,e){const n=Math.cos(e),r=Math.sin(e),i=this.x-t.x,s=this.y-t.y;return this.x=i*n-s*r+t.x,this.y=i*r+s*n+t.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}}exports.Vector2=On,On.prototype.isVector2=!0;class zn{constructor(){this.elements=[1,0,0,0,1,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l){const c=this.elements;return c[0]=t,c[1]=r,c[2]=o,c[3]=e,c[4]=i,c[5]=a,c[6]=n,c[7]=s,c[8]=l,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],this}extractBasis(t,e,n){return t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(t){const e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[3],a=n[6],l=n[1],c=n[4],h=n[7],u=n[2],p=n[5],d=n[8],m=r[0],f=r[3],g=r[6],x=r[1],v=r[4],y=r[7],_=r[2],b=r[5],w=r[8];return i[0]=s*m+o*x+a*_,i[3]=s*f+o*v+a*b,i[6]=s*g+o*y+a*w,i[1]=l*m+c*x+h*_,i[4]=l*f+c*v+h*b,i[7]=l*g+c*y+h*w,i[2]=u*m+p*x+d*_,i[5]=u*f+p*v+d*b,i[8]=u*g+p*y+d*w,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8];return e*s*c-e*o*l-n*i*c+n*o*a+r*i*l-r*s*a}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=c*s-o*l,u=o*a-c*i,p=l*i-s*a,d=e*h+n*u+r*p;if(0===d)return this.set(0,0,0,0,0,0,0,0,0);const m=1/d;return t[0]=h*m,t[1]=(r*l-c*n)*m,t[2]=(o*n-r*s)*m,t[3]=u*m,t[4]=(c*e-r*a)*m,t[5]=(r*i-o*e)*m,t[6]=p*m,t[7]=(n*a-l*e)*m,t[8]=(s*e-n*i)*m,this}transpose(){let t;const e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){const e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,n,r,i,s,o){const a=Math.cos(i),l=Math.sin(i);return this.set(n*a,n*l,-n*(a*s+l*o)+s+t,-r*l,r*a,-r*(-l*s+a*o)+o+e,0,0,1),this}scale(t,e){const n=this.elements;return n[0]*=t,n[3]*=t,n[6]*=t,n[1]*=e,n[4]*=e,n[7]*=e,this}rotate(t){const e=Math.cos(t),n=Math.sin(t),r=this.elements,i=r[0],s=r[3],o=r[6],a=r[1],l=r[4],c=r[7];return r[0]=e*i+n*a,r[3]=e*s+n*l,r[6]=e*o+n*c,r[1]=-n*i+e*a,r[4]=-n*s+e*l,r[7]=-n*o+e*c,this}translate(t,e){const n=this.elements;return n[0]+=t*n[2],n[3]+=t*n[5],n[6]+=t*n[8],n[1]+=e*n[2],n[4]+=e*n[5],n[7]+=e*n[8],this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<9;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<9;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t}clone(){return(new this.constructor).fromArray(this.elements)}}let Gn;exports.Matrix3=zn,zn.prototype.isMatrix3=!0;const Hn={getDataURL:function(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===Gn&&(Gn=document.createElementNS("http://www.w3.org/1999/xhtml","canvas")),Gn.width=t.width,Gn.height=t.height;const n=Gn.getContext("2d");t instanceof ImageData?n.putImageData(t,0,0):n.drawImage(t,0,0,t.width,t.height),e=Gn}return e.width>2048||e.height>2048?e.toDataURL("image/jpeg",.6):e.toDataURL("image/png")}};exports.ImageUtils=Hn;let Un=0;class kn extends In{constructor(t=kn.DEFAULT_IMAGE,e=kn.DEFAULT_MAPPING,n=ct,r=ct,i=gt,s=yt,o=Nt,a=bt,l=1,c=Xe){super(),Object.defineProperty(this,"id",{value:Un++}),this.uuid=Fn.generateUUID(),this.name="",this.image=t,this.mipmaps=[],this.mapping=e,this.wrapS=n,this.wrapT=r,this.magFilter=i,this.minFilter=s,this.anisotropy=l,this.format=o,this.internalFormat=null,this.type=a,this.offset=new On(0,0),this.repeat=new On(1,1),this.center=new On(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new zn,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.encoding=c,this.version=0,this.onUpdate=null}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.image=t.image,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.encoding=t.encoding,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const n={metadata:{version:4.5,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,type:this.type,encoding:this.encoding,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(void 0!==this.image){const r=this.image;if(void 0===r.uuid&&(r.uuid=Fn.generateUUID()),!e&&void 0===t.images[r.uuid]){let e;if(Array.isArray(r)){e=[];for(let t=0,n=r.length;t<n;t++)r[t].isDataTexture?e.push(Vn(r[t].image)):e.push(Vn(r[t]))}else e=Vn(r);t.images[r.uuid]={uuid:r.uuid,url:e}}n.image=r.uuid}return e||(t.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==et)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case lt:t.x=t.x-Math.floor(t.x);break;case ct:t.x=t.x<0?0:1;break;case ht:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case lt:t.y=t.y-Math.floor(t.y);break;case ct:t.y=t.y<0?0:1;break;case ht:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&this.version++}}function Vn(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?Hn.getDataURL(t):t.data?{data:Array.prototype.slice.call(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}exports.Texture=kn,kn.DEFAULT_IMAGE=void 0,kn.DEFAULT_MAPPING=et,kn.prototype.isTexture=!0;class Wn{constructor(t=0,e=0,n=0,r=1){this.x=t,this.y=e,this.z=n,this.w=r}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,n,r){return this.x=t,this.y=e,this.z=n,this.w=r,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=this.w,s=t.elements;return this.x=s[0]*e+s[4]*n+s[8]*r+s[12]*i,this.y=s[1]*e+s[5]*n+s[9]*r+s[13]*i,this.z=s[2]*e+s[6]*n+s[10]*r+s[14]*i,this.w=s[3]*e+s[7]*n+s[11]*r+s[15]*i,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,n,r,i;const s=t.elements,o=s[0],a=s[4],l=s[8],c=s[1],h=s[5],u=s[9],p=s[2],d=s[6],m=s[10];if(Math.abs(a-c)<.01&&Math.abs(l-p)<.01&&Math.abs(u-d)<.01){if(Math.abs(a+c)<.1&&Math.abs(l+p)<.1&&Math.abs(u+d)<.1&&Math.abs(o+h+m-3)<.1)return this.set(1,0,0,0),this;e=Math.PI;const t=(o+1)/2,s=(h+1)/2,f=(m+1)/2,g=(a+c)/4,x=(l+p)/4,v=(u+d)/4;return t>s&&t>f?t<.01?(n=0,r=.707106781,i=.707106781):(r=g/(n=Math.sqrt(t)),i=x/n):s>f?s<.01?(n=.707106781,r=0,i=.707106781):(n=g/(r=Math.sqrt(s)),i=v/r):f<.01?(n=.707106781,r=.707106781,i=0):(n=x/(i=Math.sqrt(f)),r=v/i),this.set(n,r,i,e),this}let f=Math.sqrt((d-u)*(d-u)+(l-p)*(l-p)+(c-a)*(c-a));return Math.abs(f)<.001&&(f=1),this.x=(d-u)/f,this.y=(l-p)/f,this.z=(c-a)/f,this.w=Math.acos((o+h+m-1)/2),this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this.w=Math.max(t.w,Math.min(e.w,this.w)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this.w=Math.max(t,Math.min(e,this.w)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this.w=this.w<0?Math.ceil(this.w):Math.floor(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this.w=t.w+(e.w-t.w)*n,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}}exports.Vector4=Wn,Wn.prototype.isVector4=!0;class jn extends In{constructor(t,e,n){super(),this.width=t,this.height=e,this.depth=1,this.scissor=new Wn(0,0,t,e),this.scissorTest=!1,this.viewport=new Wn(0,0,t,e),n=n||{},this.texture=new kn(void 0,n.mapping,n.wrapS,n.wrapT,n.magFilter,n.minFilter,n.format,n.type,n.anisotropy,n.encoding),this.texture.image={},this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=1,this.texture.generateMipmaps=void 0!==n.generateMipmaps&&n.generateMipmaps,this.texture.minFilter=void 0!==n.minFilter?n.minFilter:gt,this.depthBuffer=void 0===n.depthBuffer||n.depthBuffer,this.stencilBuffer=void 0!==n.stencilBuffer&&n.stencilBuffer,this.depthTexture=void 0!==n.depthTexture?n.depthTexture:null}setTexture(t){t.image={width:this.width,height:this.height,depth:this.depth},this.texture=t}setSize(t,e,n=1){this.width===t&&this.height===e&&this.depth===n||(this.width=t,this.height=e,this.depth=n,this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=n,this.dispose()),this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.width=t.width,this.height=t.height,this.depth=t.depth,this.viewport.copy(t.viewport),this.texture=t.texture.clone(),this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.depthTexture=t.depthTexture,this}dispose(){this.dispatchEvent({type:"dispose"})}}exports.WebGLRenderTarget=jn,jn.prototype.isWebGLRenderTarget=!0;class qn extends jn{constructor(t,e,n){super(t,e,n),this.samples=4}copy(t){return super.copy.call(this,t),this.samples=t.samples,this}}exports.WebGLMultisampleRenderTarget=qn,qn.prototype.isWebGLMultisampleRenderTarget=!0;class Xn{constructor(t=0,e=0,n=0,r=1){this._x=t,this._y=e,this._z=n,this._w=r}static slerp(t,e,n,r){return n.copy(t).slerp(e,r)}static slerpFlat(t,e,n,r,i,s,o){let a=n[r+0],l=n[r+1],c=n[r+2],h=n[r+3];const u=i[s+0],p=i[s+1],d=i[s+2],m=i[s+3];if(0===o)return t[e+0]=a,t[e+1]=l,t[e+2]=c,void(t[e+3]=h);if(1===o)return t[e+0]=u,t[e+1]=p,t[e+2]=d,void(t[e+3]=m);if(h!==m||a!==u||l!==p||c!==d){let t=1-o;const e=a*u+l*p+c*d+h*m,n=e>=0?1:-1,r=1-e*e;if(r>Number.EPSILON){const i=Math.sqrt(r),s=Math.atan2(i,e*n);t=Math.sin(t*s)/i,o=Math.sin(o*s)/i}const i=o*n;if(a=a*t+u*i,l=l*t+p*i,c=c*t+d*i,h=h*t+m*i,t===1-o){const t=1/Math.sqrt(a*a+l*l+c*c+h*h);a*=t,l*=t,c*=t,h*=t}}t[e]=a,t[e+1]=l,t[e+2]=c,t[e+3]=h}static multiplyQuaternionsFlat(t,e,n,r,i,s){const o=n[r],a=n[r+1],l=n[r+2],c=n[r+3],h=i[s],u=i[s+1],p=i[s+2],d=i[s+3];return t[e]=o*d+c*h+a*p-l*u,t[e+1]=a*d+c*u+l*h-o*p,t[e+2]=l*d+c*p+o*u-a*h,t[e+3]=c*d-o*h-a*u-l*p,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._w=r,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e){if(!t||!t.isEuler)throw new Error("THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.");const n=t._x,r=t._y,i=t._z,s=t._order,o=Math.cos,a=Math.sin,l=o(n/2),c=o(r/2),h=o(i/2),u=a(n/2),p=a(r/2),d=a(i/2);switch(s){case"XYZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"YXZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"ZXY":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"ZYX":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"YZX":this._x=u*c*h+l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h-u*p*d;break;case"XZY":this._x=u*c*h-l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h+u*p*d;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)}return!1!==e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const n=e/2,r=Math.sin(n);return this._x=t.x*r,this._y=t.y*r,this._z=t.z*r,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,n=e[0],r=e[4],i=e[8],s=e[1],o=e[5],a=e[9],l=e[2],c=e[6],h=e[10],u=n+o+h;if(u>0){const t=.5/Math.sqrt(u+1);this._w=.25/t,this._x=(c-a)*t,this._y=(i-l)*t,this._z=(s-r)*t}else if(n>o&&n>h){const t=2*Math.sqrt(1+n-o-h);this._w=(c-a)/t,this._x=.25*t,this._y=(r+s)/t,this._z=(i+l)/t}else if(o>h){const t=2*Math.sqrt(1+o-n-h);this._w=(i-l)/t,this._x=(r+s)/t,this._y=.25*t,this._z=(a+c)/t}else{const t=2*Math.sqrt(1+h-n-o);this._w=(s-r)/t,this._x=(i+l)/t,this._y=(a+c)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let n=t.dot(e)+1;return n<1e-6?(n=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=n):(this._x=0,this._y=-t.z,this._z=t.y,this._w=n)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=n),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(Fn.clamp(this.dot(t),-1,1)))}rotateTowards(t,e){const n=this.angleTo(t);if(0===n)return this;const r=Math.min(1,e/n);return this.slerp(t,r),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t,e){return void 0!==e?(console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead."),this.multiplyQuaternions(t,e)):this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const n=t._x,r=t._y,i=t._z,s=t._w,o=e._x,a=e._y,l=e._z,c=e._w;return this._x=n*c+s*o+r*l-i*a,this._y=r*c+s*a+i*o-n*l,this._z=i*c+s*l+n*a-r*o,this._w=s*c-n*o-r*a-i*l,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const n=this._x,r=this._y,i=this._z,s=this._w;let o=s*t._w+n*t._x+r*t._y+i*t._z;if(o<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,o=-o):this.copy(t),o>=1)return this._w=s,this._x=n,this._y=r,this._z=i,this;const a=1-o*o;if(a<=Number.EPSILON){const t=1-e;return this._w=t*s+e*this._w,this._x=t*n+e*this._x,this._y=t*r+e*this._y,this._z=t*i+e*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(a),c=Math.atan2(l,o),h=Math.sin((1-e)*c)/l,u=Math.sin(e*c)/l;return this._w=s*h+this._w*u,this._x=n*h+this._x*u,this._y=r*h+this._y*u,this._z=i*h+this._z*u,this._onChangeCallback(),this}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Quaternion=Xn,Xn.prototype.isQuaternion=!0;class Yn{constructor(t=0,e=0,n=0){this.x=t,this.y=e,this.z=n}set(t,e,n){return void 0===n&&(n=this.z),this.x=t,this.y=e,this.z=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(t,e)):(this.x*=t.x,this.y*=t.y,this.z*=t.z,this)}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return t&&t.isEuler||console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order."),this.applyQuaternion(Jn.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(Jn.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[3]*n+i[6]*r,this.y=i[1]*e+i[4]*n+i[7]*r,this.z=i[2]*e+i[5]*n+i[8]*r,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=t.elements,s=1/(i[3]*e+i[7]*n+i[11]*r+i[15]);return this.x=(i[0]*e+i[4]*n+i[8]*r+i[12])*s,this.y=(i[1]*e+i[5]*n+i[9]*r+i[13])*s,this.z=(i[2]*e+i[6]*n+i[10]*r+i[14])*s,this}applyQuaternion(t){const e=this.x,n=this.y,r=this.z,i=t.x,s=t.y,o=t.z,a=t.w,l=a*e+s*r-o*n,c=a*n+o*e-i*r,h=a*r+i*n-s*e,u=-i*e-s*n-o*r;return this.x=l*a+u*-i+c*-o-h*-s,this.y=c*a+u*-s+h*-i-l*-o,this.z=h*a+u*-o+l*-s-c*-i,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[4]*n+i[8]*r,this.y=i[1]*e+i[5]*n+i[9]*r,this.z=i[2]*e+i[6]*n+i[10]*r,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this}cross(t,e){return void 0!==e?(console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(t,e)):this.crossVectors(this,t)}crossVectors(t,e){const n=t.x,r=t.y,i=t.z,s=e.x,o=e.y,a=e.z;return this.x=r*a-i*o,this.y=i*s-n*a,this.z=n*o-r*s,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const n=t.dot(this)/e;return this.copy(t).multiplyScalar(n)}projectOnPlane(t){return Zn.copy(this).projectOnVector(t),this.sub(Zn)}reflect(t){return this.sub(Zn.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const n=this.dot(t)/e;return Math.acos(Fn.clamp(n,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y,r=this.z-t.z;return e*e+n*n+r*r}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,n){const r=Math.sin(e)*t;return this.x=r*Math.sin(n),this.y=Math.cos(e)*t,this.z=r*Math.cos(n),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,n){return this.x=t*Math.sin(e),this.y=n,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),n=this.setFromMatrixColumn(t,1).length(),r=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=n,this.z=r,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}}exports.Vector3=Yn,Yn.prototype.isVector3=!0;const Zn=new Yn,Jn=new Xn;class Qn{constructor(t=new Yn(1/0,1/0,1/0),e=new Yn(-1/0,-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.length;a<l;a+=3){const l=t[a],c=t[a+1],h=t[a+2];l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromBufferAttribute(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.count;a<l;a++){const l=t.getX(a),c=t.getY(a),h=t.getZ(a);l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=$n.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}setFromObject(t){return this.makeEmpty(),this.expandByObject(t)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return void 0===t&&(console.warn("THREE.Box3: .getCenter() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box3: .getSize() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t){t.updateWorldMatrix(!1,!1);const e=t.geometry;void 0!==e&&(null===e.boundingBox&&e.computeBoundingBox(),tr.copy(e.boundingBox),tr.applyMatrix4(t.matrixWorld),this.union(tr));const n=t.children;for(let r=0,i=n.length;r<i;r++)this.expandByObject(n[r]);return this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y||t.z<this.min.z||t.z>this.max.z)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box3: .getParameter() target is now required"),e=new Yn),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y||t.max.z<this.min.z||t.min.z>this.max.z)}intersectsSphere(t){return this.clampPoint(t.center,$n),$n.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,n;return t.normal.x>0?(e=t.normal.x*this.min.x,n=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,n=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,n+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,n+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,n+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,n+=t.normal.z*this.min.z),e<=-t.constant&&n>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(ar),lr.subVectors(this.max,ar),er.subVectors(t.a,ar),nr.subVectors(t.b,ar),rr.subVectors(t.c,ar),ir.subVectors(nr,er),sr.subVectors(rr,nr),or.subVectors(er,rr);let e=[0,-ir.z,ir.y,0,-sr.z,sr.y,0,-or.z,or.y,ir.z,0,-ir.x,sr.z,0,-sr.x,or.z,0,-or.x,-ir.y,ir.x,0,-sr.y,sr.x,0,-or.y,or.x,0];return!!ur(e,er,nr,rr,lr)&&(!!ur(e=[1,0,0,0,1,0,0,0,1],er,nr,rr,lr)&&(cr.crossVectors(ir,sr),ur(e=[cr.x,cr.y,cr.z],er,nr,rr,lr)))}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box3: .clampPoint() target is now required"),e=new Yn),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return $n.copy(t).clamp(this.min,this.max).sub(t).length()}getBoundingSphere(t){return void 0===t&&console.error("THREE.Box3: .getBoundingSphere() target is now required"),this.getCenter(t.center),t.radius=.5*this.getSize($n).length(),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()?this:(Kn[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),Kn[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),Kn[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),Kn[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),Kn[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),Kn[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),Kn[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),Kn[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(Kn),this)}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box3=Qn,Qn.prototype.isBox3=!0;const Kn=[new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn],$n=new Yn,tr=new Qn,er=new Yn,nr=new Yn,rr=new Yn,ir=new Yn,sr=new Yn,or=new Yn,ar=new Yn,lr=new Yn,cr=new Yn,hr=new Yn;function ur(t,e,n,r,i){for(let s=0,o=t.length-3;s<=o;s+=3){hr.fromArray(t,s);const o=i.x*Math.abs(hr.x)+i.y*Math.abs(hr.y)+i.z*Math.abs(hr.z),a=e.dot(hr),l=n.dot(hr),c=r.dot(hr);if(Math.max(-Math.max(a,l,c),Math.min(a,l,c))>o)return!1}return!0}const pr=new Qn;class dr{constructor(t=new Yn,e=-1){this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const n=this.center;void 0!==e?n.copy(e):pr.setFromPoints(t).getCenter(n);let r=0;for(let i=0,s=t.length;i<s;i++)r=Math.max(r,n.distanceToSquared(t[i]));return this.radius=Math.sqrt(r),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const n=this.center.distanceToSquared(t);return void 0===e&&(console.warn("THREE.Sphere: .clampPoint() target is now required"),e=new Yn),e.copy(t),n>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return void 0===t&&(console.warn("THREE.Sphere: .getBoundingBox() target is now required"),t=new Qn),this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}exports.Sphere=dr;const mr=new Yn,fr=new Yn,gr=new Yn,xr=new Yn,vr=new Yn,yr=new Yn,_r=new Yn;class br{constructor(t=new Yn,e=new Yn(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return void 0===e&&(console.warn("THREE.Ray: .at() target is now required"),e=new Yn),e.copy(this.direction).multiplyScalar(t).add(this.origin)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,mr)),this}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Ray: .closestPointToPoint() target is now required"),e=new Yn),e.subVectors(t,this.origin);const n=e.dot(this.direction);return n<0?e.copy(this.origin):e.copy(this.direction).multiplyScalar(n).add(this.origin)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=mr.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(mr.copy(this.direction).multiplyScalar(e).add(this.origin),mr.distanceToSquared(t))}distanceSqToSegment(t,e,n,r){fr.copy(t).add(e).multiplyScalar(.5),gr.copy(e).sub(t).normalize(),xr.copy(this.origin).sub(fr);const i=.5*t.distanceTo(e),s=-this.direction.dot(gr),o=xr.dot(this.direction),a=-xr.dot(gr),l=xr.lengthSq(),c=Math.abs(1-s*s);let h,u,p,d;if(c>0)if(u=s*o-a,d=i*c,(h=s*a-o)>=0)if(u>=-d)if(u<=d){const t=1/c;p=(h*=t)*(h+s*(u*=t)+2*o)+u*(s*h+u+2*a)+l}else u=i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u=-i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u<=-d?p=-(h=Math.max(0,-(-s*i+o)))*h+(u=h>0?-i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l:u<=d?(h=0,p=(u=Math.min(Math.max(-i,-a),i))*(u+2*a)+l):p=-(h=Math.max(0,-(s*i+o)))*h+(u=h>0?i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l;else u=s>0?-i:i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;return n&&n.copy(this.direction).multiplyScalar(h).add(this.origin),r&&r.copy(gr).multiplyScalar(u).add(fr),p}intersectSphere(t,e){mr.subVectors(t.center,this.origin);const n=mr.dot(this.direction),r=mr.dot(mr)-n*n,i=t.radius*t.radius;if(r>i)return null;const s=Math.sqrt(i-r),o=n-s,a=n+s;return o<0&&a<0?null:o<0?this.at(a,e):this.at(o,e)}intersectsSphere(t){return this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){const e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(t.normal)+t.constant)/e;return n>=0?n:null}intersectPlane(t,e){const n=this.distanceToPlane(t);return null===n?null:this.at(n,e)}intersectsPlane(t){const e=t.distanceToPoint(this.origin);return 0===e||t.normal.dot(this.direction)*e<0}intersectBox(t,e){let n,r,i,s,o,a;const l=1/this.direction.x,c=1/this.direction.y,h=1/this.direction.z,u=this.origin;return l>=0?(n=(t.min.x-u.x)*l,r=(t.max.x-u.x)*l):(n=(t.max.x-u.x)*l,r=(t.min.x-u.x)*l),c>=0?(i=(t.min.y-u.y)*c,s=(t.max.y-u.y)*c):(i=(t.max.y-u.y)*c,s=(t.min.y-u.y)*c),n>s||i>r?null:((i>n||n!=n)&&(n=i),(s<r||r!=r)&&(r=s),h>=0?(o=(t.min.z-u.z)*h,a=(t.max.z-u.z)*h):(o=(t.max.z-u.z)*h,a=(t.min.z-u.z)*h),n>a||o>r?null:((o>n||n!=n)&&(n=o),(a<r||r!=r)&&(r=a),r<0?null:this.at(n>=0?n:r,e)))}intersectsBox(t){return null!==this.intersectBox(t,mr)}intersectTriangle(t,e,n,r,i){vr.subVectors(e,t),yr.subVectors(n,t),_r.crossVectors(vr,yr);let s,o=this.direction.dot(_r);if(o>0){if(r)return null;s=1}else{if(!(o<0))return null;s=-1,o=-o}xr.subVectors(this.origin,t);const a=s*this.direction.dot(yr.crossVectors(xr,yr));if(a<0)return null;const l=s*this.direction.dot(vr.cross(xr));if(l<0)return null;if(a+l>o)return null;const c=-s*xr.dot(_r);return c<0?null:this.at(c/o,i)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}exports.Ray=br;class wr{constructor(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l,c,h,u,p,d,m,f){const g=this.elements;return g[0]=t,g[4]=e,g[8]=n,g[12]=r,g[1]=i,g[5]=s,g[9]=o,g[13]=a,g[2]=l,g[6]=c,g[10]=h,g[14]=u,g[3]=p,g[7]=d,g[11]=m,g[15]=f,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new wr).fromArray(this.elements)}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],e[9]=n[9],e[10]=n[10],e[11]=n[11],e[12]=n[12],e[13]=n[13],e[14]=n[14],e[15]=n[15],this}copyPosition(t){const e=this.elements,n=t.elements;return e[12]=n[12],e[13]=n[13],e[14]=n[14],this}setFromMatrix3(t){const e=t.elements;return this.set(e[0],e[3],e[6],0,e[1],e[4],e[7],0,e[2],e[5],e[8],0,0,0,0,1),this}extractBasis(t,e,n){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(t,e,n){return this.set(t.x,e.x,n.x,0,t.y,e.y,n.y,0,t.z,e.z,n.z,0,0,0,0,1),this}extractRotation(t){const e=this.elements,n=t.elements,r=1/Mr.setFromMatrixColumn(t,0).length(),i=1/Mr.setFromMatrixColumn(t,1).length(),s=1/Mr.setFromMatrixColumn(t,2).length();return e[0]=n[0]*r,e[1]=n[1]*r,e[2]=n[2]*r,e[3]=0,e[4]=n[4]*i,e[5]=n[5]*i,e[6]=n[6]*i,e[7]=0,e[8]=n[8]*s,e[9]=n[9]*s,e[10]=n[10]*s,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromEuler(t){t&&t.isEuler||console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.");const e=this.elements,n=t.x,r=t.y,i=t.z,s=Math.cos(n),o=Math.sin(n),a=Math.cos(r),l=Math.sin(r),c=Math.cos(i),h=Math.sin(i);if("XYZ"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=-a*h,e[8]=l,e[1]=n+r*l,e[5]=t-i*l,e[9]=-o*a,e[2]=i-t*l,e[6]=r+n*l,e[10]=s*a}else if("YXZ"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t+i*o,e[4]=r*o-n,e[8]=s*l,e[1]=s*h,e[5]=s*c,e[9]=-o,e[2]=n*o-r,e[6]=i+t*o,e[10]=s*a}else if("ZXY"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t-i*o,e[4]=-s*h,e[8]=r+n*o,e[1]=n+r*o,e[5]=s*c,e[9]=i-t*o,e[2]=-s*l,e[6]=o,e[10]=s*a}else if("ZYX"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=r*l-n,e[8]=t*l+i,e[1]=a*h,e[5]=i*l+t,e[9]=n*l-r,e[2]=-l,e[6]=o*a,e[10]=s*a}else if("YZX"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=i-t*h,e[8]=r*h+n,e[1]=h,e[5]=s*c,e[9]=-o*c,e[2]=-l*c,e[6]=n*h+r,e[10]=t-i*h}else if("XZY"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=-h,e[8]=l*c,e[1]=t*h+i,e[5]=s*c,e[9]=n*h-r,e[2]=r*h-n,e[6]=o*c,e[10]=i*h+t}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromQuaternion(t){return this.compose(Tr,t,Er)}lookAt(t,e,n){const r=this.elements;return Rr.subVectors(t,e),0===Rr.lengthSq()&&(Rr.z=1),Rr.normalize(),Ar.crossVectors(n,Rr),0===Ar.lengthSq()&&(1===Math.abs(n.z)?Rr.x+=1e-4:Rr.z+=1e-4,Rr.normalize(),Ar.crossVectors(n,Rr)),Ar.normalize(),Lr.crossVectors(Rr,Ar),r[0]=Ar.x,r[4]=Lr.x,r[8]=Rr.x,r[1]=Ar.y,r[5]=Lr.y,r[9]=Rr.y,r[2]=Ar.z,r[6]=Lr.z,r[10]=Rr.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(t,e)):this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[4],a=n[8],l=n[12],c=n[1],h=n[5],u=n[9],p=n[13],d=n[2],m=n[6],f=n[10],g=n[14],x=n[3],v=n[7],y=n[11],_=n[15],b=r[0],w=r[4],M=r[8],S=r[12],T=r[1],E=r[5],A=r[9],L=r[13],R=r[2],C=r[6],P=r[10],D=r[14],I=r[3],B=r[7],N=r[11],F=r[15];return i[0]=s*b+o*T+a*R+l*I,i[4]=s*w+o*E+a*C+l*B,i[8]=s*M+o*A+a*P+l*N,i[12]=s*S+o*L+a*D+l*F,i[1]=c*b+h*T+u*R+p*I,i[5]=c*w+h*E+u*C+p*B,i[9]=c*M+h*A+u*P+p*N,i[13]=c*S+h*L+u*D+p*F,i[2]=d*b+m*T+f*R+g*I,i[6]=d*w+m*E+f*C+g*B,i[10]=d*M+m*A+f*P+g*N,i[14]=d*S+m*L+f*D+g*F,i[3]=x*b+v*T+y*R+_*I,i[7]=x*w+v*E+y*C+_*B,i[11]=x*M+v*A+y*P+_*N,i[15]=x*S+v*L+y*D+_*F,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[4],r=t[8],i=t[12],s=t[1],o=t[5],a=t[9],l=t[13],c=t[2],h=t[6],u=t[10],p=t[14];return t[3]*(+i*a*h-r*l*h-i*o*u+n*l*u+r*o*p-n*a*p)+t[7]*(+e*a*p-e*l*u+i*s*u-r*s*p+r*l*c-i*a*c)+t[11]*(+e*l*h-e*o*p-i*s*h+n*s*p+i*o*c-n*l*c)+t[15]*(-r*o*c-e*a*h+e*o*u+r*s*h-n*s*u+n*a*c)}transpose(){const t=this.elements;let e;return e=t[1],t[1]=t[4],t[4]=e,e=t[2],t[2]=t[8],t[8]=e,e=t[6],t[6]=t[9],t[9]=e,e=t[3],t[3]=t[12],t[12]=e,e=t[7],t[7]=t[13],t[13]=e,e=t[11],t[11]=t[14],t[14]=e,this}setPosition(t,e,n){const r=this.elements;return t.isVector3?(r[12]=t.x,r[13]=t.y,r[14]=t.z):(r[12]=t,r[13]=e,r[14]=n),this}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=t[9],u=t[10],p=t[11],d=t[12],m=t[13],f=t[14],g=t[15],x=h*f*l-m*u*l+m*a*p-o*f*p-h*a*g+o*u*g,v=d*u*l-c*f*l-d*a*p+s*f*p+c*a*g-s*u*g,y=c*m*l-d*h*l+d*o*p-s*m*p-c*o*g+s*h*g,_=d*h*a-c*m*a-d*o*u+s*m*u+c*o*f-s*h*f,b=e*x+n*v+r*y+i*_;if(0===b)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const w=1/b;return t[0]=x*w,t[1]=(m*u*i-h*f*i-m*r*p+n*f*p+h*r*g-n*u*g)*w,t[2]=(o*f*i-m*a*i+m*r*l-n*f*l-o*r*g+n*a*g)*w,t[3]=(h*a*i-o*u*i-h*r*l+n*u*l+o*r*p-n*a*p)*w,t[4]=v*w,t[5]=(c*f*i-d*u*i+d*r*p-e*f*p-c*r*g+e*u*g)*w,t[6]=(d*a*i-s*f*i-d*r*l+e*f*l+s*r*g-e*a*g)*w,t[7]=(s*u*i-c*a*i+c*r*l-e*u*l-s*r*p+e*a*p)*w,t[8]=y*w,t[9]=(d*h*i-c*m*i-d*n*p+e*m*p+c*n*g-e*h*g)*w,t[10]=(s*m*i-d*o*i+d*n*l-e*m*l-s*n*g+e*o*g)*w,t[11]=(c*o*i-s*h*i-c*n*l+e*h*l+s*n*p-e*o*p)*w,t[12]=_*w,t[13]=(c*m*r-d*h*r+d*n*u-e*m*u-c*n*f+e*h*f)*w,t[14]=(d*o*r-s*m*r-d*n*a+e*m*a+s*n*f-e*o*f)*w,t[15]=(s*h*r-c*o*r+c*n*a-e*h*a-s*n*u+e*o*u)*w,this}scale(t){const e=this.elements,n=t.x,r=t.y,i=t.z;return e[0]*=n,e[4]*=r,e[8]*=i,e[1]*=n,e[5]*=r,e[9]*=i,e[2]*=n,e[6]*=r,e[10]*=i,e[3]*=n,e[7]*=r,e[11]*=i,this}getMaxScaleOnAxis(){const t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],n=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],r=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,n,r))}makeTranslation(t,e,n){return this.set(1,0,0,t,0,1,0,e,0,0,1,n,0,0,0,1),this}makeRotationX(t){const e=Math.cos(t),n=Math.sin(t);return this.set(1,0,0,0,0,e,-n,0,0,n,e,0,0,0,0,1),this}makeRotationY(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,0,n,0,0,1,0,0,-n,0,e,0,0,0,0,1),this}makeRotationZ(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,-n,0,0,n,e,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(t,e){const n=Math.cos(e),r=Math.sin(e),i=1-n,s=t.x,o=t.y,a=t.z,l=i*s,c=i*o;return this.set(l*s+n,l*o-r*a,l*a+r*o,0,l*o+r*a,c*o+n,c*a-r*s,0,l*a-r*o,c*a+r*s,i*a*a+n,0,0,0,0,1),this}makeScale(t,e,n){return this.set(t,0,0,0,0,e,0,0,0,0,n,0,0,0,0,1),this}makeShear(t,e,n){return this.set(1,e,n,0,t,1,n,0,t,e,1,0,0,0,0,1),this}compose(t,e,n){const r=this.elements,i=e._x,s=e._y,o=e._z,a=e._w,l=i+i,c=s+s,h=o+o,u=i*l,p=i*c,d=i*h,m=s*c,f=s*h,g=o*h,x=a*l,v=a*c,y=a*h,_=n.x,b=n.y,w=n.z;return r[0]=(1-(m+g))*_,r[1]=(p+y)*_,r[2]=(d-v)*_,r[3]=0,r[4]=(p-y)*b,r[5]=(1-(u+g))*b,r[6]=(f+x)*b,r[7]=0,r[8]=(d+v)*w,r[9]=(f-x)*w,r[10]=(1-(u+m))*w,r[11]=0,r[12]=t.x,r[13]=t.y,r[14]=t.z,r[15]=1,this}decompose(t,e,n){const r=this.elements;let i=Mr.set(r[0],r[1],r[2]).length();const s=Mr.set(r[4],r[5],r[6]).length(),o=Mr.set(r[8],r[9],r[10]).length();this.determinant()<0&&(i=-i),t.x=r[12],t.y=r[13],t.z=r[14],Sr.copy(this);const a=1/i,l=1/s,c=1/o;return Sr.elements[0]*=a,Sr.elements[1]*=a,Sr.elements[2]*=a,Sr.elements[4]*=l,Sr.elements[5]*=l,Sr.elements[6]*=l,Sr.elements[8]*=c,Sr.elements[9]*=c,Sr.elements[10]*=c,e.setFromRotationMatrix(Sr),n.x=i,n.y=s,n.z=o,this}makePerspective(t,e,n,r,i,s){void 0===s&&console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.");const o=this.elements,a=2*i/(e-t),l=2*i/(n-r),c=(e+t)/(e-t),h=(n+r)/(n-r),u=-(s+i)/(s-i),p=-2*s*i/(s-i);return o[0]=a,o[4]=0,o[8]=c,o[12]=0,o[1]=0,o[5]=l,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=u,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(t,e,n,r,i,s){const o=this.elements,a=1/(e-t),l=1/(n-r),c=1/(s-i),h=(e+t)*a,u=(n+r)*l,p=(s+i)*c;return o[0]=2*a,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*l,o[9]=0,o[13]=-u,o[2]=0,o[6]=0,o[10]=-2*c,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<16;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<16;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t[e+9]=n[9],t[e+10]=n[10],t[e+11]=n[11],t[e+12]=n[12],t[e+13]=n[13],t[e+14]=n[14],t[e+15]=n[15],t}}exports.Matrix4=wr,wr.prototype.isMatrix4=!0;const Mr=new Yn,Sr=new wr,Tr=new Yn(0,0,0),Er=new Yn(1,1,1),Ar=new Yn,Lr=new Yn,Rr=new Yn,Cr=new wr,Pr=new Xn;class Dr{constructor(t=0,e=0,n=0,r=Dr.DefaultOrder){this._x=t,this._y=e,this._z=n,this._order=r}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._order=r||this._order,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e,n){const r=Fn.clamp,i=t.elements,s=i[0],o=i[4],a=i[8],l=i[1],c=i[5],h=i[9],u=i[2],p=i[6],d=i[10];switch(e=e||this._order){case"XYZ":this._y=Math.asin(r(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-h,d),this._z=Math.atan2(-o,s)):(this._x=Math.atan2(p,c),this._z=0);break;case"YXZ":this._x=Math.asin(-r(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(l,c)):(this._y=Math.atan2(-u,s),this._z=0);break;case"ZXY":this._x=Math.asin(r(p,-1,1)),Math.abs(p)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-o,c)):(this._y=0,this._z=Math.atan2(l,s));break;case"ZYX":this._y=Math.asin(-r(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(p,d),this._z=Math.atan2(l,s)):(this._x=0,this._z=Math.atan2(-o,c));break;case"YZX":this._z=Math.asin(r(l,-1,1)),Math.abs(l)<.9999999?(this._x=Math.atan2(-h,c),this._y=Math.atan2(-u,s)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-r(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(p,c),this._y=Math.atan2(a,s)):(this._x=Math.atan2(-h,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!1!==n&&this._onChangeCallback(),this}setFromQuaternion(t,e,n){return Cr.makeRotationFromQuaternion(t),this.setFromRotationMatrix(Cr,e,n)}setFromVector3(t,e){return this.set(t.x,t.y,t.z,e||this._order)}reorder(t){return Pr.setFromEuler(this),this.setFromQuaternion(Pr,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t}toVector3(t){return t?t.set(this._x,this._y,this._z):new Yn(this._x,this._y,this._z)}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Euler=Dr,Dr.prototype.isEuler=!0,Dr.DefaultOrder="XYZ",Dr.RotationOrders=["XYZ","YZX","ZXY","XZY","YXZ","ZYX"];class Ir{constructor(){this.mask=1}set(t){this.mask=1<<t|0}enable(t){this.mask|=1<<t|0}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t|0}disable(t){this.mask&=~(1<<t|0)}disableAll(){this.mask=0}test(t){return 0!=(this.mask&t.mask)}}exports.Layers=Ir;let Br=0;const Nr=new Yn,Fr=new Xn,Or=new wr,zr=new Yn,Gr=new Yn,Hr=new Yn,Ur=new Xn,kr=new Yn(1,0,0),Vr=new Yn(0,1,0),Wr=new Yn(0,0,1),jr={type:"added"},qr={type:"removed"};function Xr(){Object.defineProperty(this,"id",{value:Br++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Xr.DefaultUp.clone();const t=new Yn,e=new Dr,n=new Xn,r=new Yn(1,1,1);e._onChange(function(){n.setFromEuler(e,!1)}),n._onChange(function(){e.setFromQuaternion(n,void 0,!1)}),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:n},scale:{configurable:!0,enumerable:!0,value:r},modelViewMatrix:{value:new wr},normalMatrix:{value:new zn}}),this.matrix=new wr,this.matrixWorld=new wr,this.matrixAutoUpdate=Xr.DefaultMatrixAutoUpdate,this.matrixWorldNeedsUpdate=!1,this.layers=new Ir,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}Xr.DefaultUp=new Yn(0,1,0),Xr.DefaultMatrixAutoUpdate=!0,Xr.prototype=Object.assign(Object.create(In.prototype),{constructor:Xr,isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix4:function(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(t){return this.quaternion.premultiply(t),this},setRotationFromAxisAngle:function(t,e){this.quaternion.setFromAxisAngle(t,e)},setRotationFromEuler:function(t){this.quaternion.setFromEuler(t,!0)},setRotationFromMatrix:function(t){this.quaternion.setFromRotationMatrix(t)},setRotationFromQuaternion:function(t){this.quaternion.copy(t)},rotateOnAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.multiply(Fr),this},rotateOnWorldAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.premultiply(Fr),this},rotateX:function(t){return this.rotateOnAxis(kr,t)},rotateY:function(t){return this.rotateOnAxis(Vr,t)},rotateZ:function(t){return this.rotateOnAxis(Wr,t)},translateOnAxis:function(t,e){return Nr.copy(t).applyQuaternion(this.quaternion),this.position.add(Nr.multiplyScalar(e)),this},translateX:function(t){return this.translateOnAxis(kr,t)},translateY:function(t){return this.translateOnAxis(Vr,t)},translateZ:function(t){return this.translateOnAxis(Wr,t)},localToWorld:function(t){return t.applyMatrix4(this.matrixWorld)},worldToLocal:function(t){return t.applyMatrix4(Or.copy(this.matrixWorld).invert())},lookAt:function(t,e,n){t.isVector3?zr.copy(t):zr.set(t,e,n);const r=this.parent;this.updateWorldMatrix(!0,!1),Gr.setFromMatrixPosition(this.matrixWorld),this.isCamera||this.isLight?Or.lookAt(Gr,zr,this.up):Or.lookAt(zr,Gr,this.up),this.quaternion.setFromRotationMatrix(Or),r&&(Or.extractRotation(r.matrixWorld),Fr.setFromRotationMatrix(Or),this.quaternion.premultiply(Fr.invert()))},add:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.add(arguments[t]);return this}return t===this?(console.error("THREE.Object3D.add: object can't be added as a child of itself.",t),this):(t&&t.isObject3D?(null!==t.parent&&t.parent.remove(t),t.parent=this,this.children.push(t),t.dispatchEvent(jr)):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t),this)},remove:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.remove(arguments[t]);return this}const e=this.children.indexOf(t);return-1!==e&&(t.parent=null,this.children.splice(e,1),t.dispatchEvent(qr)),this},clear:function(){for(let t=0;t<this.children.length;t++){const e=this.children[t];e.parent=null,e.dispatchEvent(qr)}return this.children.length=0,this},attach:function(t){return this.updateWorldMatrix(!0,!1),Or.copy(this.matrixWorld).invert(),null!==t.parent&&(t.parent.updateWorldMatrix(!0,!1),Or.multiply(t.parent.matrixWorld)),t.applyMatrix4(Or),this.add(t),t.updateWorldMatrix(!1,!0),this},getObjectById:function(t){return this.getObjectByProperty("id",t)},getObjectByName:function(t){return this.getObjectByProperty("name",t)},getObjectByProperty:function(t,e){if(this[t]===e)return this;for(let n=0,r=this.children.length;n<r;n++){const r=this.children[n].getObjectByProperty(t,e);if(void 0!==r)return r}},getWorldPosition:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldPosition() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),t.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldQuaternion() target is now required"),t=new Xn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,t,Hr),t},getWorldScale:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldScale() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,Ur,t),t},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Object3D: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(e[8],e[9],e[10]).normalize()},raycast:function(){},traverse:function(t){t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverse(t)},traverseVisible:function(t){if(!1===this.visible)return;t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverseVisible(t)},traverseAncestors:function(t){const e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))},updateMatrix:function(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,t=!0);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].updateMatrixWorld(t)},updateWorldMatrix:function(t,e){const n=this.parent;if(!0===t&&null!==n&&n.updateWorldMatrix(!0,!1),this.matrixAutoUpdate&&this.updateMatrix(),null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),!0===e){const t=this.children;for(let e=0,n=t.length;e<n;e++)t[e].updateWorldMatrix(!1,!0)}},toJSON:function(t){const e=void 0===t||"string"==typeof t,n={};e&&(t={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{}},n.metadata={version:4.5,type:"Object",generator:"Object3D.toJSON"});const r={};function i(e,n){return void 0===e[n.uuid]&&(e[n.uuid]=n.toJSON(t)),n.uuid}if(r.uuid=this.uuid,r.type=this.type,""!==this.name&&(r.name=this.name),!0===this.castShadow&&(r.castShadow=!0),!0===this.receiveShadow&&(r.receiveShadow=!0),!1===this.visible&&(r.visible=!1),!1===this.frustumCulled&&(r.frustumCulled=!1),0!==this.renderOrder&&(r.renderOrder=this.renderOrder),"{}"!==JSON.stringify(this.userData)&&(r.userData=this.userData),r.layers=this.layers.mask,r.matrix=this.matrix.toArray(),!1===this.matrixAutoUpdate&&(r.matrixAutoUpdate=!1),this.isInstancedMesh&&(r.type="InstancedMesh",r.count=this.count,r.instanceMatrix=this.instanceMatrix.toJSON()),this.isMesh||this.isLine||this.isPoints){r.geometry=i(t.geometries,this.geometry);const e=this.geometry.parameters;if(void 0!==e&&void 0!==e.shapes){const n=e.shapes;if(Array.isArray(n))for(let e=0,r=n.length;e<r;e++){const r=n[e];i(t.shapes,r)}else i(t.shapes,n)}}if(this.isSkinnedMesh&&(r.bindMode=this.bindMode,r.bindMatrix=this.bindMatrix.toArray(),void 0!==this.skeleton&&(i(t.skeletons,this.skeleton),r.skeleton=this.skeleton.uuid)),void 0!==this.material)if(Array.isArray(this.material)){const e=[];for(let n=0,r=this.material.length;n<r;n++)e.push(i(t.materials,this.material[n]));r.material=e}else r.material=i(t.materials,this.material);if(this.children.length>0){r.children=[];for(let e=0;e<this.children.length;e++)r.children.push(this.children[e].toJSON(t).object)}if(this.animations.length>0){r.animations=[];for(let e=0;e<this.animations.length;e++){const n=this.animations[e];r.animations.push(i(t.animations,n))}}if(e){const e=s(t.geometries),r=s(t.materials),i=s(t.textures),o=s(t.images),a=s(t.shapes),l=s(t.skeletons),c=s(t.animations);e.length>0&&(n.geometries=e),r.length>0&&(n.materials=r),i.length>0&&(n.textures=i),o.length>0&&(n.images=o),a.length>0&&(n.shapes=a),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c)}return n.object=r,n;function s(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}},clone:function(t){return(new this.constructor).copy(this,t)},copy:function(t,e=!0){if(this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.rotation.order=t.rotation.order,this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(let n=0;n<t.children.length;n++){const e=t.children[n];this.add(e.clone())}return this}});const Yr=new Yn,Zr=new Yn,Jr=new zn;class Qr{constructor(t=new Yn(1,0,0),e=0){this.normal=t,this.constant=e}set(t,e){return this.normal.copy(t),this.constant=e,this}setComponents(t,e,n,r){return this.normal.set(t,e,n),this.constant=r,this}setFromNormalAndCoplanarPoint(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this}setFromCoplanarPoints(t,e,n){const r=Yr.subVectors(n,e).cross(Zr.subVectors(t,e)).normalize();return this.setFromNormalAndCoplanarPoint(r,t),this}copy(t){return this.normal.copy(t.normal),this.constant=t.constant,this}normalize(){const t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(t){return this.normal.dot(t)+this.constant}distanceToSphere(t){return this.distanceToPoint(t.center)-t.radius}projectPoint(t,e){return void 0===e&&(console.warn("THREE.Plane: .projectPoint() target is now required"),e=new Yn),e.copy(this.normal).multiplyScalar(-this.distanceToPoint(t)).add(t)}intersectLine(t,e){void 0===e&&(console.warn("THREE.Plane: .intersectLine() target is now required"),e=new Yn);const n=t.delta(Yr),r=this.normal.dot(n);if(0===r)return 0===this.distanceToPoint(t.start)?e.copy(t.start):void 0;const i=-(t.start.dot(this.normal)+this.constant)/r;return i<0||i>1?void 0:e.copy(n).multiplyScalar(i).add(t.start)}intersectsLine(t){const e=this.distanceToPoint(t.start),n=this.distanceToPoint(t.end);return e<0&&n>0||n<0&&e>0}intersectsBox(t){return t.intersectsPlane(this)}intersectsSphere(t){return t.intersectsPlane(this)}coplanarPoint(t){return void 0===t&&(console.warn("THREE.Plane: .coplanarPoint() target is now required"),t=new Yn),t.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(t,e){const n=e||Jr.getNormalMatrix(t),r=this.coplanarPoint(Yr).applyMatrix4(t),i=this.normal.applyMatrix3(n).normalize();return this.constant=-r.dot(i),this}translate(t){return this.constant-=t.dot(this.normal),this}equals(t){return t.normal.equals(this.normal)&&t.constant===this.constant}clone(){return(new this.constructor).copy(this)}}exports.Plane=Qr,Qr.prototype.isPlane=!0;const Kr=new Yn,$r=new Yn,ti=new Yn,ei=new Yn,ni=new Yn,ri=new Yn,ii=new Yn,si=new Yn,oi=new Yn,ai=new Yn;class li{constructor(t=new Yn,e=new Yn,n=new Yn){this.a=t,this.b=e,this.c=n}static getNormal(t,e,n,r){void 0===r&&(console.warn("THREE.Triangle: .getNormal() target is now required"),r=new Yn),r.subVectors(n,e),Kr.subVectors(t,e),r.cross(Kr);const i=r.lengthSq();return i>0?r.multiplyScalar(1/Math.sqrt(i)):r.set(0,0,0)}static getBarycoord(t,e,n,r,i){Kr.subVectors(r,e),$r.subVectors(n,e),ti.subVectors(t,e);const s=Kr.dot(Kr),o=Kr.dot($r),a=Kr.dot(ti),l=$r.dot($r),c=$r.dot(ti),h=s*l-o*o;if(void 0===i&&(console.warn("THREE.Triangle: .getBarycoord() target is now required"),i=new Yn),0===h)return i.set(-2,-1,-1);const u=1/h,p=(l*a-o*c)*u,d=(s*c-o*a)*u;return i.set(1-p-d,d,p)}static containsPoint(t,e,n,r){return this.getBarycoord(t,e,n,r,ei),ei.x>=0&&ei.y>=0&&ei.x+ei.y<=1}static getUV(t,e,n,r,i,s,o,a){return this.getBarycoord(t,e,n,r,ei),a.set(0,0),a.addScaledVector(i,ei.x),a.addScaledVector(s,ei.y),a.addScaledVector(o,ei.z),a}static isFrontFacing(t,e,n,r){return Kr.subVectors(n,e),$r.subVectors(t,e),Kr.cross($r).dot(r)<0}set(t,e,n){return this.a.copy(t),this.b.copy(e),this.c.copy(n),this}setFromPointsAndIndices(t,e,n,r){return this.a.copy(t[e]),this.b.copy(t[n]),this.c.copy(t[r]),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this}getArea(){return Kr.subVectors(this.c,this.b),$r.subVectors(this.a,this.b),.5*Kr.cross($r).length()}getMidpoint(t){return void 0===t&&(console.warn("THREE.Triangle: .getMidpoint() target is now required"),t=new Yn),t.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(t){return li.getNormal(this.a,this.b,this.c,t)}getPlane(t){return void 0===t&&(console.warn("THREE.Triangle: .getPlane() target is now required"),t=new Qr),t.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(t,e){return li.getBarycoord(t,this.a,this.b,this.c,e)}getUV(t,e,n,r,i){return li.getUV(t,this.a,this.b,this.c,e,n,r,i)}containsPoint(t){return li.containsPoint(t,this.a,this.b,this.c)}isFrontFacing(t){return li.isFrontFacing(this.a,this.b,this.c,t)}intersectsBox(t){return t.intersectsTriangle(this)}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Triangle: .closestPointToPoint() target is now required"),e=new Yn);const n=this.a,r=this.b,i=this.c;let s,o;ni.subVectors(r,n),ri.subVectors(i,n),si.subVectors(t,n);const a=ni.dot(si),l=ri.dot(si);if(a<=0&&l<=0)return e.copy(n);oi.subVectors(t,r);const c=ni.dot(oi),h=ri.dot(oi);if(c>=0&&h<=c)return e.copy(r);const u=a*h-c*l;if(u<=0&&a>=0&&c<=0)return s=a/(a-c),e.copy(n).addScaledVector(ni,s);ai.subVectors(t,i);const p=ni.dot(ai),d=ri.dot(ai);if(d>=0&&p<=d)return e.copy(i);const m=p*l-a*d;if(m<=0&&l>=0&&d<=0)return o=l/(l-d),e.copy(n).addScaledVector(ri,o);const f=c*d-p*h;if(f<=0&&h-c>=0&&p-d>=0)return ii.subVectors(i,r),o=(h-c)/(h-c+(p-d)),e.copy(r).addScaledVector(ii,o);const g=1/(f+m+u);return s=m*g,o=u*g,e.copy(n).addScaledVector(ni,s).addScaledVector(ri,o)}equals(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}exports.Triangle=li;let ci=0;function hi(){Object.defineProperty(this,"id",{value:ci++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Material",this.fog=!0,this.blending=x,this.side=u,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.blendSrc=P,this.blendDst=D,this.blendEquation=w,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=U,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=bn,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=an,this.stencilZFail=an,this.stencilZPass=an,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaTest=0,this.premultipliedAlpha=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0}hi.prototype=Object.assign(Object.create(In.prototype),{constructor:hi,isMaterial:!0,onBeforeCompile:function(){},customProgramCacheKey:function(){return this.onBeforeCompile.toString()},setValues:function(t){if(void 0!==t)for(const e in t){const n=t[e];if(void 0===n){console.warn("THREE.Material: '"+e+"' parameter is undefined.");continue}if("shading"===e){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===n;continue}const r=this[e];void 0!==r?r&&r.isColor?r.set(n):r&&r.isVector3&&n&&n.isVector3?r.copy(n):this[e]=n:console.warn("THREE."+this.type+": '"+e+"' is not a property of this material.")}},toJSON:function(t){const e=void 0===t||"string"==typeof t;e&&(t={textures:{},images:{}});const n={metadata:{version:4.5,type:"Material",generator:"Material.toJSON"}};function r(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),this.sheen&&this.sheen.isColor&&(n.sheen=this.sheen.getHex()),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(t).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(t).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(t).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(t).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(t).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(t).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(t).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(t).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(t).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(t).uuid,n.reflectivity=this.reflectivity,n.refractionRatio=this.refractionRatio,void 0!==this.combine&&(n.combine=this.combine),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity)),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.size&&(n.size=this.size),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),this.blending!==x&&(n.blending=this.blending),this.side!==u&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.morphTargets&&(n.morphTargets=!0),!0===this.morphNormals&&(n.morphNormals=!0),!0===this.skinning&&(n.skinning=!0),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),"{}"!==JSON.stringify(this.userData)&&(n.userData=this.userData),e){const e=r(t.textures),i=r(t.images);e.length>0&&(n.textures=e),i.length>0&&(n.images=i)}return n},clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.name=t.name,this.fog=t.fog,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;const e=t.clippingPlanes;let n=null;if(null!==e){const t=e.length;n=new Array(t);for(let r=0;r!==t;++r)n[r]=e[r].clone()}return this.clippingPlanes=n,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.premultipliedAlpha=t.premultipliedAlpha,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this},dispose:function(){this.dispatchEvent({type:"dispose"})}}),Object.defineProperty(hi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}});const ui={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},pi={h:0,s:0,l:0},di={h:0,s:0,l:0};function mi(t,e,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?t+6*(e-t)*n:n<.5?e:n<2/3?t+6*(e-t)*(2/3-n):t}function fi(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}function gi(t){return t<.0031308?12.92*t:1.055*Math.pow(t,.41666)-.055}class xi{constructor(t,e,n){return void 0===e&&void 0===n?this.set(t):this.setRGB(t,e,n)}set(t){return t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t),this}setScalar(t){return this.r=t,this.g=t,this.b=t,this}setHex(t){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,this}setRGB(t,e,n){return this.r=t,this.g=e,this.b=n,this}setHSL(t,e,n){if(t=Fn.euclideanModulo(t,1),e=Fn.clamp(e,0,1),n=Fn.clamp(n,0,1),0===e)this.r=this.g=this.b=n;else{const r=n<=.5?n*(1+e):n+e-n*e,i=2*n-r;this.r=mi(i,r,t+1/3),this.g=mi(i,r,t),this.b=mi(i,r,t-1/3)}return this}setStyle(t){function e(e){void 0!==e&&parseFloat(e)<1&&console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")}let n;if(n=/^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(t)){let t;const r=n[1],i=n[2];switch(r){case"rgb":case"rgba":if(t=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(255,parseInt(t[1],10))/255,this.g=Math.min(255,parseInt(t[2],10))/255,this.b=Math.min(255,parseInt(t[3],10))/255,e(t[4]),this;if(t=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(100,parseInt(t[1],10))/100,this.g=Math.min(100,parseInt(t[2],10))/100,this.b=Math.min(100,parseInt(t[3],10))/100,e(t[4]),this;break;case"hsl":case"hsla":if(t=/^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i)){const n=parseFloat(t[1])/360,r=parseInt(t[2],10)/100,i=parseInt(t[3],10)/100;return e(t[4]),this.setHSL(n,r,i)}}}else if(n=/^\#([A-Fa-f\d]+)$/.exec(t)){const t=n[1],e=t.length;if(3===e)return this.r=parseInt(t.charAt(0)+t.charAt(0),16)/255,this.g=parseInt(t.charAt(1)+t.charAt(1),16)/255,this.b=parseInt(t.charAt(2)+t.charAt(2),16)/255,this;if(6===e)return this.r=parseInt(t.charAt(0)+t.charAt(1),16)/255,this.g=parseInt(t.charAt(2)+t.charAt(3),16)/255,this.b=parseInt(t.charAt(4)+t.charAt(5),16)/255,this}return t&&t.length>0?this.setColorName(t):this}setColorName(t){const e=ui[t];return void 0!==e?this.setHex(e):console.warn("THREE.Color: Unknown color "+t),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(t){return this.r=t.r,this.g=t.g,this.b=t.b,this}copyGammaToLinear(t,e=2){return this.r=Math.pow(t.r,e),this.g=Math.pow(t.g,e),this.b=Math.pow(t.b,e),this}copyLinearToGamma(t,e=2){const n=e>0?1/e:1;return this.r=Math.pow(t.r,n),this.g=Math.pow(t.g,n),this.b=Math.pow(t.b,n),this}convertGammaToLinear(t){return this.copyGammaToLinear(this,t),this}convertLinearToGamma(t){return this.copyLinearToGamma(this,t),this}copySRGBToLinear(t){return this.r=fi(t.r),this.g=fi(t.g),this.b=fi(t.b),this}copyLinearToSRGB(t){return this.r=gi(t.r),this.g=gi(t.g),this.b=gi(t.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(){return 255*this.r<<16^255*this.g<<8^255*this.b<<0}getHexString(){return("000000"+this.getHex().toString(16)).slice(-6)}getHSL(t){void 0===t&&(console.warn("THREE.Color: .getHSL() target is now required"),t={h:0,s:0,l:0});const e=this.r,n=this.g,r=this.b,i=Math.max(e,n,r),s=Math.min(e,n,r);let o,a;const l=(s+i)/2;if(s===i)o=0,a=0;else{const t=i-s;switch(a=l<=.5?t/(i+s):t/(2-i-s),i){case e:o=(n-r)/t+(n<r?6:0);break;case n:o=(r-e)/t+2;break;case r:o=(e-n)/t+4}o/=6}return t.h=o,t.s=a,t.l=l,t}getStyle(){return"rgb("+(255*this.r|0)+","+(255*this.g|0)+","+(255*this.b|0)+")"}offsetHSL(t,e,n){return this.getHSL(pi),pi.h+=t,pi.s+=e,pi.l+=n,this.setHSL(pi.h,pi.s,pi.l),this}add(t){return this.r+=t.r,this.g+=t.g,this.b+=t.b,this}addColors(t,e){return this.r=t.r+e.r,this.g=t.g+e.g,this.b=t.b+e.b,this}addScalar(t){return this.r+=t,this.g+=t,this.b+=t,this}sub(t){return this.r=Math.max(0,this.r-t.r),this.g=Math.max(0,this.g-t.g),this.b=Math.max(0,this.b-t.b),this}multiply(t){return this.r*=t.r,this.g*=t.g,this.b*=t.b,this}multiplyScalar(t){return this.r*=t,this.g*=t,this.b*=t,this}lerp(t,e){return this.r+=(t.r-this.r)*e,this.g+=(t.g-this.g)*e,this.b+=(t.b-this.b)*e,this}lerpColors(t,e,n){return this.r=t.r+(e.r-t.r)*n,this.g=t.g+(e.g-t.g)*n,this.b=t.b+(e.b-t.b)*n,this}lerpHSL(t,e){this.getHSL(pi),t.getHSL(di);const n=Fn.lerp(pi.h,di.h,e),r=Fn.lerp(pi.s,di.s,e),i=Fn.lerp(pi.l,di.l,e);return this.setHSL(n,r,i),this}equals(t){return t.r===this.r&&t.g===this.g&&t.b===this.b}fromArray(t,e=0){return this.r=t[e],this.g=t[e+1],this.b=t[e+2],this}toArray(t=[],e=0){return t[e]=this.r,t[e+1]=this.g,t[e+2]=this.b,t}fromBufferAttribute(t,e){return this.r=t.getX(e),this.g=t.getY(e),this.b=t.getZ(e),!0===t.normalized&&(this.r/=255,this.g/=255,this.b/=255),this}toJSON(){return this.getHex()}}exports.Color=xi,xi.NAMES=ui,xi.prototype.isColor=!0,xi.prototype.r=1,xi.prototype.g=1,xi.prototype.b=1;class vi extends hi{constructor(t){super(),this.type="MeshBasicMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this}}exports.MeshBasicMaterial=vi,vi.prototype.isMeshBasicMaterial=!0;const yi=new Yn,_i=new On;function bi(t,e,n){if(Array.isArray(t))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.name="",this.array=t,this.itemSize=e,this.count=void 0!==t?t.length/e:0,this.normalized=!0===n,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0}function wi(t,e,n){bi.call(this,new Int8Array(t),e,n)}function Mi(t,e,n){bi.call(this,new Uint8Array(t),e,n)}function Si(t,e,n){bi.call(this,new Uint8ClampedArray(t),e,n)}function Ti(t,e,n){bi.call(this,new Int16Array(t),e,n)}function Ei(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ai(t,e,n){bi.call(this,new Int32Array(t),e,n)}function Li(t,e,n){bi.call(this,new Uint32Array(t),e,n)}function Ri(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ci(t,e,n){bi.call(this,new Float32Array(t),e,n)}function Pi(t,e,n){bi.call(this,new Float64Array(t),e,n)}function Di(t){if(0===t.length)return-1/0;let e=t[0];for(let n=1,r=t.length;n<r;++n)t[n]>e&&(e=t[n]);return e}Object.defineProperty(bi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(bi.prototype,{isBufferAttribute:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.itemSize,n*=e.itemSize;for(let r=0,i=this.itemSize;r<i;r++)this.array[t+r]=e.array[n+r];return this},copyArray:function(t){return this.array.set(t),this},copyColorsArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",r),i=new xi),e[n++]=i.r,e[n++]=i.g,e[n++]=i.b}return this},copyVector2sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",r),i=new On),e[n++]=i.x,e[n++]=i.y}return this},copyVector3sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",r),i=new Yn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z}return this},copyVector4sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",r),i=new Wn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z,e[n++]=i.w}return this},applyMatrix3:function(t){if(2===this.itemSize)for(let e=0,n=this.count;e<n;e++)_i.fromBufferAttribute(this,e),_i.applyMatrix3(t),this.setXY(e,_i.x,_i.y);else if(3===this.itemSize)for(let e=0,n=this.count;e<n;e++)yi.fromBufferAttribute(this,e),yi.applyMatrix3(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyMatrix4:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyMatrix4(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyNormalMatrix:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyNormalMatrix(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},transformDirection:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.transformDirection(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},set:function(t,e=0){return this.array.set(t,e),this},getX:function(t){return this.array[t*this.itemSize]},setX:function(t,e){return this.array[t*this.itemSize]=e,this},getY:function(t){return this.array[t*this.itemSize+1]},setY:function(t,e){return this.array[t*this.itemSize+1]=e,this},getZ:function(t){return this.array[t*this.itemSize+2]},setZ:function(t,e){return this.array[t*this.itemSize+2]=e,this},getW:function(t){return this.array[t*this.itemSize+3]},setW:function(t,e){return this.array[t*this.itemSize+3]=e,this},setXY:function(t,e,n){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this.array[t+3]=i,this},onUpload:function(t){return this.onUploadCallback=t,this},clone:function(){return new this.constructor(this.array,this.itemSize).copy(this)},toJSON:function(){return{itemSize:this.itemSize,type:this.array.constructor.name,array:Array.prototype.slice.call(this.array),normalized:this.normalized}}}),wi.prototype=Object.create(bi.prototype),wi.prototype.constructor=wi,Mi.prototype=Object.create(bi.prototype),Mi.prototype.constructor=Mi,Si.prototype=Object.create(bi.prototype),Si.prototype.constructor=Si,Ti.prototype=Object.create(bi.prototype),Ti.prototype.constructor=Ti,Ei.prototype=Object.create(bi.prototype),Ei.prototype.constructor=Ei,Ai.prototype=Object.create(bi.prototype),Ai.prototype.constructor=Ai,Li.prototype=Object.create(bi.prototype),Li.prototype.constructor=Li,Ri.prototype=Object.create(bi.prototype),Ri.prototype.constructor=Ri,Ri.prototype.isFloat16BufferAttribute=!0,Ci.prototype=Object.create(bi.prototype),Ci.prototype.constructor=Ci,Pi.prototype=Object.create(bi.prototype),Pi.prototype.constructor=Pi;const Ii={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:Uint8ClampedArray,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};function Bi(t,e){return new Ii[t](e)}let Ni=0;const Fi=new wr,Oi=new Xr,zi=new Yn,Gi=new Qn,Hi=new Qn,Ui=new Yn;function ki(){Object.defineProperty(this,"id",{value:Ni++}),this.uuid=Fn.generateUUID(),this.name="",this.type="BufferGeometry",this.index=null,this.attributes={},this.morphAttributes={},this.morphTargetsRelative=!1,this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.drawRange={start:0,count:1/0},this.userData={}}ki.prototype=Object.assign(Object.create(In.prototype),{constructor:ki,isBufferGeometry:!0,getIndex:function(){return this.index},setIndex:function(t){return Array.isArray(t)?this.index=new(Di(t)>65535?Li:Ei)(t,1):this.index=t,this},getAttribute:function(t){return this.attributes[t]},setAttribute:function(t,e){return this.attributes[t]=e,this},deleteAttribute:function(t){return delete this.attributes[t],this},hasAttribute:function(t){return void 0!==this.attributes[t]},addGroup:function(t,e,n=0){this.groups.push({start:t,count:e,materialIndex:n})},clearGroups:function(){this.groups=[]},setDrawRange:function(t,e){this.drawRange.start=t,this.drawRange.count=e},applyMatrix4:function(t){const e=this.attributes.position;void 0!==e&&(e.applyMatrix4(t),e.needsUpdate=!0);const n=this.attributes.normal;if(void 0!==n){const e=(new zn).getNormalMatrix(t);n.applyNormalMatrix(e),n.needsUpdate=!0}const r=this.attributes.tangent;return void 0!==r&&(r.transformDirection(t),r.needsUpdate=!0),null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this},rotateX:function(t){return Fi.makeRotationX(t),this.applyMatrix4(Fi),this},rotateY:function(t){return Fi.makeRotationY(t),this.applyMatrix4(Fi),this},rotateZ:function(t){return Fi.makeRotationZ(t),this.applyMatrix4(Fi),this},translate:function(t,e,n){return Fi.makeTranslation(t,e,n),this.applyMatrix4(Fi),this},scale:function(t,e,n){return Fi.makeScale(t,e,n),this.applyMatrix4(Fi),this},lookAt:function(t){return Oi.lookAt(t),Oi.updateMatrix(),this.applyMatrix4(Oi.matrix),this},center:function(){return this.computeBoundingBox(),this.boundingBox.getCenter(zi).negate(),this.translate(zi.x,zi.y,zi.z),this},setFromPoints:function(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n];e.push(r.x,r.y,r.z||0)}return this.setAttribute("position",new Ci(e,3)),this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new Qn);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingBox.set(new Yn(-1/0,-1/0,-1/0),new Yn(1/0,1/0,1/0));if(void 0!==t){if(this.boundingBox.setFromBufferAttribute(t),e)for(let n=0,r=e.length;n<r;n++){const t=e[n];Gi.setFromBufferAttribute(t),this.morphTargetsRelative?(Ui.addVectors(this.boundingBox.min,Gi.min),this.boundingBox.expandByPoint(Ui),Ui.addVectors(this.boundingBox.max,Gi.max),this.boundingBox.expandByPoint(Ui)):(this.boundingBox.expandByPoint(Gi.min),this.boundingBox.expandByPoint(Gi.max))}}else this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new dr);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingSphere.set(new Yn,1/0);if(t){const n=this.boundingSphere.center;if(Gi.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const n=e[t];Hi.setFromBufferAttribute(n),this.morphTargetsRelative?(Ui.addVectors(Gi.min,Hi.min),Gi.expandByPoint(Ui),Ui.addVectors(Gi.max,Hi.max),Gi.expandByPoint(Ui)):(Gi.expandByPoint(Hi.min),Gi.expandByPoint(Hi.max))}Gi.getCenter(n);let r=0;for(let e=0,i=t.count;e<i;e++)Ui.fromBufferAttribute(t,e),r=Math.max(r,n.distanceToSquared(Ui));if(e)for(let i=0,s=e.length;i<s;i++){const s=e[i],o=this.morphTargetsRelative;for(let e=0,i=s.count;e<i;e++)Ui.fromBufferAttribute(s,e),o&&(zi.fromBufferAttribute(t,e),Ui.add(zi)),r=Math.max(r,n.distanceToSquared(Ui))}this.boundingSphere.radius=Math.sqrt(r),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}},computeFaceNormals:function(){},computeTangents:function(){const t=this.index,e=this.attributes;if(null===t||void 0===e.position||void 0===e.normal||void 0===e.uv)return void console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");const n=t.array,r=e.position.array,i=e.normal.array,s=e.uv.array,o=r.length/3;void 0===e.tangent&&this.setAttribute("tangent",new bi(new Float32Array(4*o),4));const a=e.tangent.array,l=[],c=[];for(let T=0;T<o;T++)l[T]=new Yn,c[T]=new Yn;const h=new Yn,u=new Yn,p=new Yn,d=new On,m=new On,f=new On,g=new Yn,x=new Yn;function v(t,e,n){h.fromArray(r,3*t),u.fromArray(r,3*e),p.fromArray(r,3*n),d.fromArray(s,2*t),m.fromArray(s,2*e),f.fromArray(s,2*n),u.sub(h),p.sub(h),m.sub(d),f.sub(d);const i=1/(m.x*f.y-f.x*m.y);isFinite(i)&&(g.copy(u).multiplyScalar(f.y).addScaledVector(p,-m.y).multiplyScalar(i),x.copy(p).multiplyScalar(m.x).addScaledVector(u,-f.x).multiplyScalar(i),l[t].add(g),l[e].add(g),l[n].add(g),c[t].add(x),c[e].add(x),c[n].add(x))}let y=this.groups;0===y.length&&(y=[{start:0,count:n.length}]);for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)v(n[r+0],n[r+1],n[r+2])}const _=new Yn,b=new Yn,w=new Yn,M=new Yn;function S(t){w.fromArray(i,3*t),M.copy(w);const e=l[t];_.copy(e),_.sub(w.multiplyScalar(w.dot(e))).normalize(),b.crossVectors(M,e);const n=b.dot(c[t])<0?-1:1;a[4*t]=_.x,a[4*t+1]=_.y,a[4*t+2]=_.z,a[4*t+3]=n}for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)S(n[r+0]),S(n[r+1]),S(n[r+2])}},computeVertexNormals:function(){const t=this.index,e=this.getAttribute("position");if(void 0!==e){let n=this.getAttribute("normal");if(void 0===n)n=new bi(new Float32Array(3*e.count),3),this.setAttribute("normal",n);else for(let t=0,e=n.count;t<e;t++)n.setXYZ(t,0,0,0);const r=new Yn,i=new Yn,s=new Yn,o=new Yn,a=new Yn,l=new Yn,c=new Yn,h=new Yn;if(t)for(let u=0,p=t.count;u<p;u+=3){const p=t.getX(u+0),d=t.getX(u+1),m=t.getX(u+2);r.fromBufferAttribute(e,p),i.fromBufferAttribute(e,d),s.fromBufferAttribute(e,m),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),o.fromBufferAttribute(n,p),a.fromBufferAttribute(n,d),l.fromBufferAttribute(n,m),o.add(c),a.add(c),l.add(c),n.setXYZ(p,o.x,o.y,o.z),n.setXYZ(d,a.x,a.y,a.z),n.setXYZ(m,l.x,l.y,l.z)}else for(let t=0,u=e.count;t<u;t+=3)r.fromBufferAttribute(e,t+0),i.fromBufferAttribute(e,t+1),s.fromBufferAttribute(e,t+2),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),n.setXYZ(t+0,c.x,c.y,c.z),n.setXYZ(t+1,c.x,c.y,c.z),n.setXYZ(t+2,c.x,c.y,c.z);this.normalizeNormals(),n.needsUpdate=!0}},merge:function(t,e){if(!t||!t.isBufferGeometry)return void console.error("THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.",t);void 0===e&&(e=0,console.warn("THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge."));const n=this.attributes;for(const r in n){if(void 0===t.attributes[r])continue;const i=n[r].array,s=t.attributes[r],o=s.array,a=s.itemSize*e,l=Math.min(o.length,i.length-a);for(let t=0,e=a;t<l;t++,e++)i[e]=o[t]}return this},normalizeNormals:function(){const t=this.attributes.normal;for(let e=0,n=t.count;e<n;e++)Ui.fromBufferAttribute(t,e),Ui.normalize(),t.setXYZ(e,Ui.x,Ui.y,Ui.z)},toNonIndexed:function(){function t(t,e){const n=t.array,r=t.itemSize,i=t.normalized,s=new n.constructor(e.length*r);let o=0,a=0;for(let l=0,c=e.length;l<c;l++){o=e[l]*r;for(let t=0;t<r;t++)s[a++]=n[o++]}return new bi(s,r,i)}if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed."),this;const e=new ki,n=this.index.array,r=this.attributes;for(const o in r){const i=t(r[o],n);e.setAttribute(o,i)}const i=this.morphAttributes;for(const o in i){const r=[],s=i[o];for(let e=0,i=s.length;e<i;e++){const i=t(s[e],n);r.push(i)}e.morphAttributes[o]=r}e.morphTargetsRelative=this.morphTargetsRelative;const s=this.groups;for(let o=0,a=s.length;o<a;o++){const t=s[o];e.addGroup(t.start,t.count,t.materialIndex)}return e},toJSON:function(){const t={metadata:{version:4.5,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};if(t.uuid=this.uuid,t.type=this.type,""!==this.name&&(t.name=this.name),Object.keys(this.userData).length>0&&(t.userData=this.userData),void 0!==this.parameters){const e=this.parameters;for(const n in e)void 0!==e[n]&&(t[n]=e[n]);return t}t.data={attributes:{}};const e=this.index;null!==e&&(t.data.index={type:e.array.constructor.name,array:Array.prototype.slice.call(e.array)});const n=this.attributes;for(const a in n){const e=n[a],r=e.toJSON(t.data);""!==e.name&&(r.name=e.name),t.data.attributes[a]=r}const r={};let i=!1;for(const a in this.morphAttributes){const e=this.morphAttributes[a],n=[];for(let r=0,i=e.length;r<i;r++){const i=e[r],s=i.toJSON(t.data);""!==i.name&&(s.name=i.name),n.push(s)}n.length>0&&(r[a]=n,i=!0)}i&&(t.data.morphAttributes=r,t.data.morphTargetsRelative=this.morphTargetsRelative);const s=this.groups;s.length>0&&(t.data.groups=JSON.parse(JSON.stringify(s)));const o=this.boundingSphere;return null!==o&&(t.data.boundingSphere={center:o.center.toArray(),radius:o.radius}),t},clone:function(){return(new ki).copy(this)},copy:function(t){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const e={};this.name=t.name;const n=t.index;null!==n&&this.setIndex(n.clone(e));const r=t.attributes;for(const l in r){const t=r[l];this.setAttribute(l,t.clone(e))}const i=t.morphAttributes;for(const l in i){const t=[],n=i[l];for(let r=0,i=n.length;r<i;r++)t.push(n[r].clone(e));this.morphAttributes[l]=t}this.morphTargetsRelative=t.morphTargetsRelative;const s=t.groups;for(let l=0,c=s.length;l<c;l++){const t=s[l];this.addGroup(t.start,t.count,t.materialIndex)}const o=t.boundingBox;null!==o&&(this.boundingBox=o.clone());const a=t.boundingSphere;return null!==a&&(this.boundingSphere=a.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this.userData=t.userData,this},dispose:function(){this.dispatchEvent({type:"dispose"})}});const Vi=new wr,Wi=new br,ji=new dr,qi=new Yn,Xi=new Yn,Yi=new Yn,Zi=new Yn,Ji=new Yn,Qi=new Yn,Ki=new Yn,$i=new Yn,ts=new Yn,es=new On,ns=new On,rs=new On,is=new Yn,ss=new Yn;function os(t=new ki,e=new vi){Xr.call(this),this.type="Mesh",this.geometry=t,this.material=e,this.updateMorphTargets()}function as(t,e,n,r,i,s,o,a){let l;if(null===(l=e.side===p?r.intersectTriangle(o,s,i,!0,a):r.intersectTriangle(i,s,o,e.side!==d,a)))return null;ss.copy(a),ss.applyMatrix4(t.matrixWorld);const c=n.ray.origin.distanceTo(ss);return c<n.near||c>n.far?null:{distance:c,point:ss.clone(),object:t}}function ls(t,e,n,r,i,s,o,a,l,c,h,u){qi.fromBufferAttribute(i,c),Xi.fromBufferAttribute(i,h),Yi.fromBufferAttribute(i,u);const p=t.morphTargetInfluences;if(e.morphTargets&&s&&p){Ki.set(0,0,0),$i.set(0,0,0),ts.set(0,0,0);for(let t=0,e=s.length;t<e;t++){const e=p[t],n=s[t];0!==e&&(Zi.fromBufferAttribute(n,c),Ji.fromBufferAttribute(n,h),Qi.fromBufferAttribute(n,u),o?(Ki.addScaledVector(Zi,e),$i.addScaledVector(Ji,e),ts.addScaledVector(Qi,e)):(Ki.addScaledVector(Zi.sub(qi),e),$i.addScaledVector(Ji.sub(Xi),e),ts.addScaledVector(Qi.sub(Yi),e)))}qi.add(Ki),Xi.add($i),Yi.add(ts)}t.isSkinnedMesh&&e.skinning&&(t.boneTransform(c,qi),t.boneTransform(h,Xi),t.boneTransform(u,Yi));const d=as(t,e,n,r,qi,Xi,Yi,is);if(d){a&&(es.fromBufferAttribute(a,c),ns.fromBufferAttribute(a,h),rs.fromBufferAttribute(a,u),d.uv=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On)),l&&(es.fromBufferAttribute(l,c),ns.fromBufferAttribute(l,h),rs.fromBufferAttribute(l,u),d.uv2=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On));const t={a:c,b:h,c:u,normal:new Yn,materialIndex:0};li.getNormal(qi,Xi,Yi,t.normal),d.face=t}return d}os.prototype=Object.assign(Object.create(Xr.prototype),{constructor:os,isMesh:!0,copy:function(t){return Xr.prototype.copy.call(this,t),void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this.material=t.material,this.geometry=t.geometry,this},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}},raycast:function(t,e){const n=this.geometry,r=this.material,i=this.matrixWorld;if(void 0===r)return;if(null===n.boundingSphere&&n.computeBoundingSphere(),ji.copy(n.boundingSphere),ji.applyMatrix4(i),!1===t.ray.intersectsSphere(ji))return;if(Vi.copy(i).invert(),Wi.copy(t.ray).applyMatrix4(Vi),null!==n.boundingBox&&!1===Wi.intersectsBox(n.boundingBox))return;let s;if(n.isBufferGeometry){const i=n.index,o=n.attributes.position,a=n.morphAttributes.position,l=n.morphTargetsRelative,c=n.attributes.uv,h=n.attributes.uv2,u=n.groups,p=n.drawRange;if(null!==i)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const d=u[n],m=r[d.materialIndex];for(let n=Math.max(d.start,p.start),r=Math.min(d.start+d.count,p.start+p.count);n<r;n+=3){const r=i.getX(n),u=i.getX(n+1),p=i.getX(n+2);(s=ls(this,m,t,Wi,o,a,l,c,h,r,u,p))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=d.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),u=Math.min(i.count,p.start+p.count);n<u;n+=3){const u=i.getX(n),p=i.getX(n+1),d=i.getX(n+2);(s=ls(this,r,t,Wi,o,a,l,c,h,u,p,d))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}else if(void 0!==o)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const i=u[n],d=r[i.materialIndex];for(let n=Math.max(i.start,p.start),r=Math.min(i.start+i.count,p.start+p.count);n<r;n+=3){(s=ls(this,d,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=i.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),i=Math.min(o.count,p.start+p.count);n<i;n+=3){(s=ls(this,r,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}}else n.isGeometry&&console.error("THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}});class cs extends ki{constructor(t=1,e=1,n=1,r=1,i=1,s=1){super(),this.type="BoxGeometry",this.parameters={width:t,height:e,depth:n,widthSegments:r,heightSegments:i,depthSegments:s};const o=this;r=Math.floor(r),i=Math.floor(i),s=Math.floor(s);const a=[],l=[],c=[],h=[];let u=0,p=0;function d(t,e,n,r,i,s,d,m,f,g,x){const v=s/f,y=d/g,_=s/2,b=d/2,w=m/2,M=f+1,S=g+1;let T=0,E=0;const A=new Yn;for(let o=0;o<S;o++){const s=o*y-b;for(let a=0;a<M;a++){const u=a*v-_;A[t]=u*r,A[e]=s*i,A[n]=w,l.push(A.x,A.y,A.z),A[t]=0,A[e]=0,A[n]=m>0?1:-1,c.push(A.x,A.y,A.z),h.push(a/f),h.push(1-o/g),T+=1}}for(let o=0;o<g;o++)for(let t=0;t<f;t++){const e=u+t+M*o,n=u+t+M*(o+1),r=u+(t+1)+M*(o+1),i=u+(t+1)+M*o;a.push(e,n,i),a.push(n,r,i),E+=6}o.addGroup(p,E,x),p+=E,u+=T}d("z","y","x",-1,-1,n,e,t,s,i,0),d("z","y","x",1,-1,n,e,-t,s,i,1),d("x","z","y",1,1,t,n,e,r,s,2),d("x","z","y",1,-1,t,n,-e,r,s,3),d("x","y","z",1,-1,t,e,n,r,i,4),d("x","y","z",-1,-1,t,e,-n,r,i,5),this.setIndex(a),this.setAttribute("position",new Ci(l,3)),this.setAttribute("normal",new Ci(c,3)),this.setAttribute("uv",new Ci(h,2))}}function hs(t){const e={};for(const n in t){e[n]={};for(const r in t[n]){const i=t[n][r];i&&(i.isColor||i.isMatrix3||i.isMatrix4||i.isVector2||i.isVector3||i.isVector4||i.isTexture||i.isQuaternion)?e[n][r]=i.clone():Array.isArray(i)?e[n][r]=i.slice():e[n][r]=i}}return e}function us(t){const e={};for(let n=0;n<t.length;n++){const r=hs(t[n]);for(const t in r)e[t]=r[t]}return e}exports.BoxGeometry=exports.BoxBufferGeometry=cs;const ps={clone:hs,merge:us};exports.UniformsUtils=ps;var ds="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}",ms="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";function fs(t){hi.call(this),this.type="ShaderMaterial",this.defines={},this.uniforms={},this.vertexShader=ds,this.fragmentShader=ms,this.linewidth=1,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.clipping=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.extensions={derivatives:!1,fragDepth:!1,drawBuffers:!1,shaderTextureLOD:!1},this.defaultAttributeValues={color:[1,1,1],uv:[0,0],uv2:[0,0]},this.index0AttributeName=void 0,this.uniformsNeedUpdate=!1,this.glslVersion=null,void 0!==t&&(void 0!==t.attributes&&console.error("THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead."),this.setValues(t))}function gs(){Xr.call(this),this.type="Camera",this.matrixWorldInverse=new wr,this.projectionMatrix=new wr,this.projectionMatrixInverse=new wr}function xs(t=50,e=1,n=.1,r=2e3){gs.call(this),this.type="PerspectiveCamera",this.fov=t,this.zoom=1,this.near=n,this.far=r,this.focus=10,this.aspect=e,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}fs.prototype=Object.create(hi.prototype),fs.prototype.constructor=fs,fs.prototype.isShaderMaterial=!0,fs.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=hs(t.uniforms),this.defines=Object.assign({},t.defines),this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.lights=t.lights,this.clipping=t.clipping,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.extensions=Object.assign({},t.extensions),this.glslVersion=t.glslVersion,this},fs.prototype.toJSON=function(t){const e=hi.prototype.toJSON.call(this,t);e.glslVersion=this.glslVersion,e.uniforms={};for(const r in this.uniforms){const n=this.uniforms[r].value;n&&n.isTexture?e.uniforms[r]={type:"t",value:n.toJSON(t).uuid}:n&&n.isColor?e.uniforms[r]={type:"c",value:n.getHex()}:n&&n.isVector2?e.uniforms[r]={type:"v2",value:n.toArray()}:n&&n.isVector3?e.uniforms[r]={type:"v3",value:n.toArray()}:n&&n.isVector4?e.uniforms[r]={type:"v4",value:n.toArray()}:n&&n.isMatrix3?e.uniforms[r]={type:"m3",value:n.toArray()}:n&&n.isMatrix4?e.uniforms[r]={type:"m4",value:n.toArray()}:e.uniforms[r]={value:n}}Object.keys(this.defines).length>0&&(e.defines=this.defines),e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader;const n={};for(const r in this.extensions)!0===this.extensions[r]&&(n[r]=!0);return Object.keys(n).length>0&&(e.extensions=n),e},gs.prototype=Object.assign(Object.create(Xr.prototype),{constructor:gs,isCamera:!0,copy:function(t,e){return Xr.prototype.copy.call(this,t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this.projectionMatrixInverse.copy(t.projectionMatrixInverse),this},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Camera: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(-e[8],-e[9],-e[10]).normalize()},updateMatrixWorld:function(t){Xr.prototype.updateMatrixWorld.call(this,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()},updateWorldMatrix:function(t,e){Xr.prototype.updateWorldMatrix.call(this,t,e),this.matrixWorldInverse.copy(this.matrixWorld).invert()},clone:function(){return(new this.constructor).copy(this)}}),xs.prototype=Object.assign(Object.create(gs.prototype),{constructor:xs,isPerspectiveCamera:!0,copy:function(t,e){return gs.prototype.copy.call(this,t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this},setFocalLength:function(t){const e=.5*this.getFilmHeight()/t;this.fov=2*Fn.RAD2DEG*Math.atan(e),this.updateProjectionMatrix()},getFocalLength:function(){const t=Math.tan(.5*Fn.DEG2RAD*this.fov);return.5*this.getFilmHeight()/t},getEffectiveFOV:function(){return 2*Fn.RAD2DEG*Math.atan(Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(t,e,n,r,i,s){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){const t=this.near;let e=t*Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom,n=2*e,r=this.aspect*n,i=-.5*r;const s=this.view;if(null!==this.view&&this.view.enabled){const t=s.fullWidth,o=s.fullHeight;i+=s.offsetX*r/t,e-=s.offsetY*n/o,r*=s.width/t,n*=s.height/o}const o=this.filmOffset;0!==o&&(i+=t*o/this.getFilmWidth()),this.projectionMatrix.makePerspective(i,i+r,e,e-n,t,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()},toJSON:function(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}});const vs=90,ys=1;class _s extends Xr{constructor(t,e,n){if(super(),this.type="CubeCamera",!0!==n.isWebGLCubeRenderTarget)return void console.error("THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.");this.renderTarget=n;const r=new xs(vs,ys,t,e);r.layers=this.layers,r.up.set(0,-1,0),r.lookAt(new Yn(1,0,0)),this.add(r);const i=new xs(vs,ys,t,e);i.layers=this.layers,i.up.set(0,-1,0),i.lookAt(new Yn(-1,0,0)),this.add(i);const s=new xs(vs,ys,t,e);s.layers=this.layers,s.up.set(0,0,1),s.lookAt(new Yn(0,1,0)),this.add(s);const o=new xs(vs,ys,t,e);o.layers=this.layers,o.up.set(0,0,-1),o.lookAt(new Yn(0,-1,0)),this.add(o);const a=new xs(vs,ys,t,e);a.layers=this.layers,a.up.set(0,-1,0),a.lookAt(new Yn(0,0,1)),this.add(a);const l=new xs(vs,ys,t,e);l.layers=this.layers,l.up.set(0,-1,0),l.lookAt(new Yn(0,0,-1)),this.add(l)}update(t,e){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget,[r,i,s,o,a,l]=this.children,c=t.xr.enabled,h=t.getRenderTarget();t.xr.enabled=!1;const u=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,t.setRenderTarget(n,0),t.render(e,r),t.setRenderTarget(n,1),t.render(e,i),t.setRenderTarget(n,2),t.render(e,s),t.setRenderTarget(n,3),t.render(e,o),t.setRenderTarget(n,4),t.render(e,a),n.texture.generateMipmaps=u,t.setRenderTarget(n,5),t.render(e,l),t.setRenderTarget(h),t.xr.enabled=c}}exports.CubeCamera=_s;class bs extends kn{constructor(t,e,n,r,i,s,o,a,l,c){super(t=void 0!==t?t:[],e=void 0!==e?e:nt,n,r,i,s,o=void 0!==o?o:Bt,a,l,c),this._needsFlipEnvMap=!0,this.flipY=!1}get images(){return this.image}set images(t){this.image=t}}exports.CubeTexture=bs,bs.prototype.isCubeTexture=!0;class ws extends jn{constructor(t,e,n){Number.isInteger(e)&&(console.warn("THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )"),e=n),super(t,t,e),e=e||{},this.texture=new bs(void 0,e.mapping,e.wrapS,e.wrapT,e.magFilter,e.minFilter,e.format,e.type,e.anisotropy,e.encoding),this.texture.generateMipmaps=void 0!==e.generateMipmaps&&e.generateMipmaps,this.texture.minFilter=void 0!==e.minFilter?e.minFilter:gt,this.texture._needsFlipEnvMap=!1}fromEquirectangularTexture(t,e){this.texture.type=e.type,this.texture.format=Nt,this.texture.encoding=e.encoding,this.texture.generateMipmaps=e.generateMipmaps,this.texture.minFilter=e.minFilter,this.texture.magFilter=e.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include <common>\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},r=new cs(5,5,5),i=new fs({name:"CubemapFromEquirect",uniforms:hs(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:p,blending:g});i.uniforms.tEquirect.value=e;const s=new os(r,i),o=e.minFilter;return e.minFilter===yt&&(e.minFilter=gt),new _s(1,10,this).update(t,s),e.minFilter=o,s.geometry.dispose(),s.material.dispose(),this}clear(t,e,n,r){const i=t.getRenderTarget();for(let s=0;s<6;s++)t.setRenderTarget(this,s),t.clear(e,n,r);t.setRenderTarget(i)}}exports.WebGLCubeRenderTarget=ws,ws.prototype.isWebGLCubeRenderTarget=!0;class Ms extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={data:t||null,width:e||1,height:n||1},this.magFilter=void 0!==l?l:ut,this.minFilter=void 0!==c?c:ut,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.needsUpdate=!0}}exports.DataTexture=Ms,Ms.prototype.isDataTexture=!0;const Ss=new dr,Ts=new Yn;class Es{constructor(t=new Qr,e=new Qr,n=new Qr,r=new Qr,i=new Qr,s=new Qr){this.planes=[t,e,n,r,i,s]}set(t,e,n,r,i,s){const o=this.planes;return o[0].copy(t),o[1].copy(e),o[2].copy(n),o[3].copy(r),o[4].copy(i),o[5].copy(s),this}copy(t){const e=this.planes;for(let n=0;n<6;n++)e[n].copy(t.planes[n]);return this}setFromProjectionMatrix(t){const e=this.planes,n=t.elements,r=n[0],i=n[1],s=n[2],o=n[3],a=n[4],l=n[5],c=n[6],h=n[7],u=n[8],p=n[9],d=n[10],m=n[11],f=n[12],g=n[13],x=n[14],v=n[15];return e[0].setComponents(o-r,h-a,m-u,v-f).normalize(),e[1].setComponents(o+r,h+a,m+u,v+f).normalize(),e[2].setComponents(o+i,h+l,m+p,v+g).normalize(),e[3].setComponents(o-i,h-l,m-p,v-g).normalize(),e[4].setComponents(o-s,h-c,m-d,v-x).normalize(),e[5].setComponents(o+s,h+c,m+d,v+x).normalize(),this}intersectsObject(t){const e=t.geometry;return null===e.boundingSphere&&e.computeBoundingSphere(),Ss.copy(e.boundingSphere).applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSprite(t){return Ss.center.set(0,0,0),Ss.radius=.7071067811865476,Ss.applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSphere(t){const e=this.planes,n=t.center,r=-t.radius;for(let i=0;i<6;i++){if(e[i].distanceToPoint(n)<r)return!1}return!0}intersectsBox(t){const e=this.planes;for(let n=0;n<6;n++){const r=e[n];if(Ts.x=r.normal.x>0?t.max.x:t.min.x,Ts.y=r.normal.y>0?t.max.y:t.min.y,Ts.z=r.normal.z>0?t.max.z:t.min.z,r.distanceToPoint(Ts)<0)return!1}return!0}containsPoint(t){const e=this.planes;for(let n=0;n<6;n++)if(e[n].distanceToPoint(t)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function As(){let t=null,e=!1,n=null,r=null;function i(e,s){n(e,s),r=t.requestAnimationFrame(i)}return{start:function(){!0!==e&&null!==n&&(r=t.requestAnimationFrame(i),e=!0)},stop:function(){t.cancelAnimationFrame(r),e=!1},setAnimationLoop:function(t){n=t},setContext:function(e){t=e}}}function Ls(t,e){const n=e.isWebGL2,r=new WeakMap;return{get:function(t){return t.isInterleavedBufferAttribute&&(t=t.data),r.get(t)},remove:function(e){e.isInterleavedBufferAttribute&&(e=e.data);const n=r.get(e);n&&(t.deleteBuffer(n.buffer),r.delete(e))},update:function(e,i){if(e.isGLBufferAttribute){const t=r.get(e);return void((!t||t.version<e.version)&&r.set(e,{buffer:e.buffer,type:e.type,bytesPerElement:e.elementSize,version:e.version}))}e.isInterleavedBufferAttribute&&(e=e.data);const s=r.get(e);void 0===s?r.set(e,function(e,r){const i=e.array,s=e.usage,o=t.createBuffer();t.bindBuffer(r,o),t.bufferData(r,i,s),e.onUploadCallback();let a=5126;return i instanceof Float32Array?a=5126:i instanceof Float64Array?console.warn("THREE.WebGLAttributes: Unsupported data buffer format: Float64Array."):i instanceof Uint16Array?e.isFloat16BufferAttribute?n?a=5131:console.warn("THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2."):a=5123:i instanceof Int16Array?a=5122:i instanceof Uint32Array?a=5125:i instanceof Int32Array?a=5124:i instanceof Int8Array?a=5120:i instanceof Uint8Array&&(a=5121),{buffer:o,type:a,bytesPerElement:i.BYTES_PER_ELEMENT,version:e.version}}(e,i)):s.version<e.version&&(function(e,r,i){const s=r.array,o=r.updateRange;t.bindBuffer(i,e),-1===o.count?t.bufferSubData(i,0,s):(n?t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s,o.offset,o.count):t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s.subarray(o.offset,o.offset+o.count)),o.count=-1)}(s.buffer,e,i),s.version=e.version)}}}exports.Frustum=Es;class Rs extends ki{constructor(t=1,e=1,n=1,r=1){super(),this.type="PlaneGeometry",this.parameters={width:t,height:e,widthSegments:n,heightSegments:r};const i=t/2,s=e/2,o=Math.floor(n),a=Math.floor(r),l=o+1,c=a+1,h=t/o,u=e/a,p=[],d=[],m=[],f=[];for(let g=0;g<c;g++){const t=g*u-s;for(let e=0;e<l;e++){const n=e*h-i;d.push(n,-t,0),m.push(0,0,1),f.push(e/o),f.push(1-g/a)}}for(let g=0;g<a;g++)for(let t=0;t<o;t++){const e=t+l*g,n=t+l*(g+1),r=t+1+l*(g+1),i=t+1+l*g;p.push(e,n,i),p.push(n,r,i)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.PlaneGeometry=exports.PlaneBufferGeometry=Rs;var Cs="#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif",Ps="#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",Ds="#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif",Is="#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif",Bs="#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",Ns="vec3 transformed = vec3( position );",Fs="vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif",Os="vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif",zs="#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif",Gs="#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",Hs="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",Us="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",ks="#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",Vs="#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif",Ws="#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif",js="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",qs="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",Xs="#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}",Ys="#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",Zs="vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",Js="#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",Qs="#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif",Ks="#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",$s="#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",to="gl_FragColor = linearToOutputTexel( gl_FragColor );",eo="\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}",no="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",ro="#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",io="#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",so="#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",oo="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",ao="#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif",lo="#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif",co="#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",ho="#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",uo="#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}",po="#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif",mo="#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",fo="vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif",go="uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif",xo="#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif",vo="ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",yo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)",_o="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",bo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)",wo="PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif",Mo="struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",So="\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",To="#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif",Eo="#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",Ao="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",Lo="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",Ro="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",Co="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",Po="#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif",Do="#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",Io="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",Bo="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",No="float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",Fo="#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",Oo="#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif",zo="#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif",Go="#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif",Ho="float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;",Uo="#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",ko="#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif",Vo="#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",Wo="#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif",jo="#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif",qo="vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}",Xo="#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",Yo="vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",Zo="#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",Jo="#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",Qo="float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",Ko="#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",$o="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",ta="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",ea="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif",na="float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",ra="#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",ia="#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif",sa="#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",oa="#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",aa="float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",la="#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",ca="#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",ha="#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",ua="#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif",pa="#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif",da="#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif",ma="#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif",fa="#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif",ga="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif",xa="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif",va="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif",ya="#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",_a="uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",ba="varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",wa="#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ma="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",Sa="#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",Ta="#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}",Ea="#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",Aa="#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}",La="uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ra="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}",Ca="uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Pa="uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",Da="uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ia="#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}",Ba="uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Na="#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Fa="#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Oa="#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}",za="#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ga="#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ha="#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ua="#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",ka="#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Va="#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Wa="#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}",ja="#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",qa="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Xa="uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}",Ya="uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Za="#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ja="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Qa="uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";const Ka={alphamap_fragment:Cs,alphamap_pars_fragment:Ps,alphatest_fragment:Ds,aomap_fragment:Is,aomap_pars_fragment:Bs,begin_vertex:Ns,beginnormal_vertex:Fs,bsdfs:Os,bumpmap_pars_fragment:zs,clipping_planes_fragment:Gs,clipping_planes_pars_fragment:Hs,clipping_planes_pars_vertex:Us,clipping_planes_vertex:ks,color_fragment:Vs,color_pars_fragment:Ws,color_pars_vertex:js,color_vertex:qs,common:Xs,cube_uv_reflection_fragment:Ys,defaultnormal_vertex:Zs,displacementmap_pars_vertex:Js,displacementmap_vertex:Qs,emissivemap_fragment:Ks,emissivemap_pars_fragment:$s,encodings_fragment:to,encodings_pars_fragment:eo,envmap_fragment:no,envmap_common_pars_fragment:ro,envmap_pars_fragment:io,envmap_pars_vertex:so,envmap_physical_pars_fragment:xo,envmap_vertex:oo,fog_vertex:ao,fog_pars_vertex:lo,fog_fragment:co,fog_pars_fragment:ho,gradientmap_pars_fragment:uo,lightmap_fragment:po,lightmap_pars_fragment:mo,lights_lambert_vertex:fo,lights_pars_begin:go,lights_toon_fragment:vo,lights_toon_pars_fragment:yo,lights_phong_fragment:_o,lights_phong_pars_fragment:bo,lights_physical_fragment:wo,lights_physical_pars_fragment:Mo,lights_fragment_begin:So,lights_fragment_maps:To,lights_fragment_end:Eo,logdepthbuf_fragment:Ao,logdepthbuf_pars_fragment:Lo,logdepthbuf_pars_vertex:Ro,logdepthbuf_vertex:Co,map_fragment:Po,map_pars_fragment:Do,map_particle_fragment:Io,map_particle_pars_fragment:Bo,metalnessmap_fragment:No,metalnessmap_pars_fragment:Fo,morphnormal_vertex:Oo,morphtarget_pars_vertex:zo,morphtarget_vertex:Go,normal_fragment_begin:Ho,normal_fragment_maps:Uo,normalmap_pars_fragment:ko,clearcoat_normal_fragment_begin:Vo,clearcoat_normal_fragment_maps:Wo,clearcoat_pars_fragment:jo,packing:qo,premultiplied_alpha_fragment:Xo,project_vertex:Yo,dithering_fragment:Zo,dithering_pars_fragment:Jo,roughnessmap_fragment:Qo,roughnessmap_pars_fragment:Ko,shadowmap_pars_fragment:$o,shadowmap_pars_vertex:ta,shadowmap_vertex:ea,shadowmask_pars_fragment:na,skinbase_vertex:ra,skinning_pars_vertex:ia,skinning_vertex:sa,skinnormal_vertex:oa,specularmap_fragment:aa,specularmap_pars_fragment:la,tonemapping_fragment:ca,tonemapping_pars_fragment:ha,transmissionmap_fragment:ua,transmissionmap_pars_fragment:pa,uv_pars_fragment:da,uv_pars_vertex:ma,uv_vertex:fa,uv2_pars_fragment:ga,uv2_pars_vertex:xa,uv2_vertex:va,worldpos_vertex:ya,background_frag:_a,background_vert:ba,cube_frag:wa,cube_vert:Ma,depth_frag:Sa,depth_vert:Ta,distanceRGBA_frag:Ea,distanceRGBA_vert:Aa,equirect_frag:La,equirect_vert:Ra,linedashed_frag:Ca,linedashed_vert:Pa,meshbasic_frag:Da,meshbasic_vert:Ia,meshlambert_frag:Ba,meshlambert_vert:Na,meshmatcap_frag:Fa,meshmatcap_vert:Oa,meshtoon_frag:za,meshtoon_vert:Ga,meshphong_frag:Ha,meshphong_vert:Ua,meshphysical_frag:ka,meshphysical_vert:Va,normal_frag:Wa,normal_vert:ja,points_frag:qa,points_vert:Xa,shadow_frag:Ya,shadow_vert:Za,sprite_frag:Ja,sprite_vert:Qa};exports.ShaderChunk=Ka;const $a={common:{diffuse:{value:new xi(15658734)},opacity:{value:1},map:{value:null},uvTransform:{value:new zn},uv2Transform:{value:new zn},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98},maxMipLevel:{value:0}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new On(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new xi(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new xi(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}},sprite:{diffuse:{value:new xi(15658734)},opacity:{value:1},center:{value:new On(.5,.5)},rotation:{value:0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}}};exports.UniformsLib=$a;const tl={basic:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.fog]),vertexShader:Ka.meshbasic_vert,fragmentShader:Ka.meshbasic_frag},lambert:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshlambert_vert,fragmentShader:Ka.meshlambert_frag},phong:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},specular:{value:new xi(1118481)},shininess:{value:30}}]),vertexShader:Ka.meshphong_vert,fragmentShader:Ka.meshphong_frag},standard:{uniforms:us([$a.common,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.roughnessmap,$a.metalnessmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag},toon:{uniforms:us([$a.common,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.gradientmap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshtoon_vert,fragmentShader:Ka.meshtoon_frag},matcap:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,{matcap:{value:null}}]),vertexShader:Ka.meshmatcap_vert,fragmentShader:Ka.meshmatcap_frag},points:{uniforms:us([$a.points,$a.fog]),vertexShader:Ka.points_vert,fragmentShader:Ka.points_frag},dashed:{uniforms:us([$a.common,$a.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:Ka.linedashed_vert,fragmentShader:Ka.linedashed_frag},depth:{uniforms:us([$a.common,$a.displacementmap]),vertexShader:Ka.depth_vert,fragmentShader:Ka.depth_frag},normal:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,{opacity:{value:1}}]),vertexShader:Ka.normal_vert,fragmentShader:Ka.normal_frag},sprite:{uniforms:us([$a.sprite,$a.fog]),vertexShader:Ka.sprite_vert,fragmentShader:Ka.sprite_frag},background:{uniforms:{uvTransform:{value:new zn},t2D:{value:null}},vertexShader:Ka.background_vert,fragmentShader:Ka.background_frag},cube:{uniforms:us([$a.envmap,{opacity:{value:1}}]),vertexShader:Ka.cube_vert,fragmentShader:Ka.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:Ka.equirect_vert,fragmentShader:Ka.equirect_frag},distanceRGBA:{uniforms:us([$a.common,$a.displacementmap,{referencePosition:{value:new Yn},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:Ka.distanceRGBA_vert,fragmentShader:Ka.distanceRGBA_frag},shadow:{uniforms:us([$a.lights,$a.fog,{color:{value:new xi(0)},opacity:{value:1}}]),vertexShader:Ka.shadow_vert,fragmentShader:Ka.shadow_frag}};function el(t,e,n,r,i){const s=new xi(0);let o,a,l=0,c=null,h=0,d=null;function m(t,e){n.buffers.color.setClear(t.r,t.g,t.b,e,i)}return{getClearColor:function(){return s},setClearColor:function(t,e=1){s.set(t),m(s,l=e)},getClearAlpha:function(){return l},setClearAlpha:function(t){m(s,l=t)},render:function(n,i,f,g){let x=!0===i.isScene?i.background:null;x&&x.isTexture&&(x=e.get(x));const v=t.xr,y=v.getSession&&v.getSession();y&&"additive"===y.environmentBlendMode&&(x=null),null===x?m(s,l):x&&x.isColor&&(m(x,1),g=!0),(t.autoClear||g)&&t.clear(t.autoClearColor,t.autoClearDepth,t.autoClearStencil),x&&(x.isCubeTexture||x.isWebGLCubeRenderTarget||x.mapping===ot)?(void 0===a&&((a=new os(new cs(1,1,1),new fs({name:"BackgroundCubeMaterial",uniforms:hs(tl.cube.uniforms),vertexShader:tl.cube.vertexShader,fragmentShader:tl.cube.fragmentShader,side:p,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),a.geometry.deleteAttribute("uv"),a.onBeforeRender=function(t,e,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(a.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(a)),x.isWebGLCubeRenderTarget&&(x=x.texture),a.material.uniforms.envMap.value=x,a.material.uniforms.flipEnvMap.value=x.isCubeTexture&&x._needsFlipEnvMap?-1:1,c===x&&h===x.version&&d===t.toneMapping||(a.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(a,a.geometry,a.material,0,0,null)):x&&x.isTexture&&(void 0===o&&((o=new os(new Rs(2,2),new fs({name:"BackgroundMaterial",uniforms:hs(tl.background.uniforms),vertexShader:tl.background.vertexShader,fragmentShader:tl.background.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),Object.defineProperty(o.material,"map",{get:function(){return 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s=c.newAttributes,o=c.enabledAttributes,a=c.attributeDivisors;if(s[n]=1,0===o[n]&&(t.enableVertexAttribArray(n),o[n]=1),a[n]!==i){(r.isWebGL2?t:e.get("ANGLE_instanced_arrays"))[r.isWebGL2?"vertexAttribDivisor":"vertexAttribDivisorANGLE"](n,i),a[n]=i}}function g(){const e=c.newAttributes,n=c.enabledAttributes;for(let r=0,i=n.length;r<i;r++)n[r]!==e[r]&&(t.disableVertexAttribArray(r),n[r]=0)}function x(e,n,i,s,o,a){!0!==r.isWebGL2||5124!==i&&5125!==i?t.vertexAttribPointer(e,n,i,s,o,a):t.vertexAttribIPointer(e,n,i,o,a)}function v(){y(),c!==l&&h((c=l).object)}function y(){l.geometry=null,l.program=null,l.wireframe=!1}return{setup:function(i,l,u,v,y){let _=!1;if(o){const e=function(e,n,i){const o=!0===i.wireframe;let l=a[e.id];void 0===l&&(l={},a[e.id]=l);let c=l[n.id];void 0===c&&(c={},l[n.id]=c);let h=c[o];return void 0===h&&(h=p(r.isWebGL2?t.createVertexArray():s.createVertexArrayOES()),c[o]=h),h}(v,u,l);c!==e&&h((c=e).object),(_=function(t,e){const n=c.attributes,r=t.attributes;let i=0;for(const s in r){const t=n[s],e=r[s];if(void 0===t)return!0;if(t.attribute!==e)return!0;if(t.data!==e.data)return!0;i++}return c.attributesNum!==i||c.index!==e}(v,y))&&function(t,e){const n={},r=t.attributes;let i=0;for(const s in r){const t=r[s],e={};e.attribute=t,t.data&&(e.data=t.data),n[s]=e,i++}c.attributes=n,c.attributesNum=i,c.index=e}(v,y)}else{const t=!0===l.wireframe;c.geometry===v.id&&c.program===u.id&&c.wireframe===t||(c.geometry=v.id,c.program=u.id,c.wireframe=t,_=!0)}!0===i.isInstancedMesh&&(_=!0),null!==y&&n.update(y,34963),_&&(function(i,s,o,a){if(!1===r.isWebGL2&&(i.isInstancedMesh||a.isInstancedBufferGeometry)&&null===e.get("ANGLE_instanced_arrays"))return;d();const l=a.attributes,c=o.getAttributes(),h=s.defaultAttributeValues;for(const e in c){const r=c[e];if(r>=0){const s=l[e];if(void 0!==s){const e=s.normalized,i=s.itemSize,o=n.get(s);if(void 0===o)continue;const l=o.buffer,c=o.type,h=o.bytesPerElement;if(s.isInterleavedBufferAttribute){const 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2:t.vertexAttrib2fv(r,n);break;case 3:t.vertexAttrib3fv(r,n);break;case 4:t.vertexAttrib4fv(r,n);break;default:t.vertexAttrib1fv(r,n)}}}}g()}(i,l,u,v),null!==y&&t.bindBuffer(34963,n.get(y).buffer))},reset:v,resetDefaultState:y,dispose:function(){v();for(const t in a){const e=a[t];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete a[t]}},releaseStatesOfGeometry:function(t){if(void 0===a[t.id])return;const e=a[t.id];for(const n in e){const t=e[n];for(const e in t)u(t[e].object),delete t[e];delete e[n]}delete a[t.id]},releaseStatesOfProgram:function(t){for(const e in a){const n=a[e];if(void 0===n[t.id])continue;const r=n[t.id];for(const t in r)u(r[t].object),delete r[t];delete n[t.id]}},initAttributes:d,enableAttribute:m,disableUnusedAttributes:g}}function rl(t,e,n,r){const i=r.isWebGL2;let s;this.setMode=function(t){s=t},this.render=function(e,r){t.drawArrays(s,e,r),n.update(r,s,1)},this.renderInstances=function(r,o,a){if(0===a)return;let l,c;if(i)l=t,c="drawArraysInstanced";else if(c="drawArraysInstancedANGLE",null===(l=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");l[c](s,r,o,a),n.update(o,s,a)}}function il(t,e,n){let r;function i(e){if("highp"===e){if(t.getShaderPrecisionFormat(35633,36338).precision>0&&t.getShaderPrecisionFormat(35632,36338).precision>0)return"highp";e="mediump"}return"mediump"===e&&t.getShaderPrecisionFormat(35633,36337).precision>0&&t.getShaderPrecisionFormat(35632,36337).precision>0?"mediump":"lowp"}const s="undefined"!=typeof WebGL2RenderingContext&&t instanceof WebGL2RenderingContext||"undefined"!=typeof WebGL2ComputeRenderingContext&&t instanceof WebGL2ComputeRenderingContext;let o=void 0!==n.precision?n.precision:"highp";const a=i(o);a!==o&&(console.warn("THREE.WebGLRenderer:",o,"not supported, using",a,"instead."),o=a);const l=!0===n.logarithmicDepthBuffer,c=t.getParameter(34930),h=t.getParameter(35660),u=t.getParameter(3379),p=t.getParameter(34076),d=t.getParameter(34921),m=t.getParameter(36347),f=t.getParameter(36348),g=t.getParameter(36349),x=h>0,v=s||e.has("OES_texture_float");return{isWebGL2:s,getMaxAnisotropy:function(){if(void 0!==r)return r;if(!0===e.has("EXT_texture_filter_anisotropic")){const n=e.get("EXT_texture_filter_anisotropic");r=t.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else r=0;return r},getMaxPrecision:i,precision:o,logarithmicDepthBuffer:l,maxTextures:c,maxVertexTextures:h,maxTextureSize:u,maxCubemapSize:p,maxAttributes:d,maxVertexUniforms:m,maxVaryings:f,maxFragmentUniforms:g,vertexTextures:x,floatFragmentTextures:v,floatVertexTextures:x&&v,maxSamples:s?t.getParameter(36183):0}}function sl(t){const e=this;let n=null,r=0,i=!1,s=!1;const o=new Qr,a=new zn,l={value:null,needsUpdate:!1};function c(){l.value!==n&&(l.value=n,l.needsUpdate=r>0),e.numPlanes=r,e.numIntersection=0}function h(t,n,r,i){const s=null!==t?t.length:0;let c=null;if(0!==s){if(c=l.value,!0!==i||null===c){const e=r+4*s,i=n.matrixWorldInverse;a.getNormalMatrix(i),(null===c||c.length<e)&&(c=new Float32Array(e));for(let n=0,l=r;n!==s;++n,l+=4)o.copy(t[n]).applyMatrix4(i,a),o.normal.toArray(c,l),c[l+3]=o.constant}l.value=c,l.needsUpdate=!0}return e.numPlanes=s,e.numIntersection=0,c}this.uniform=l,this.numPlanes=0,this.numIntersection=0,this.init=function(t,e,s){const o=0!==t.length||e||0!==r||i;return i=e,n=h(t,s,0),r=t.length,o},this.beginShadows=function(){s=!0,h(null)},this.endShadows=function(){s=!1,c()},this.setState=function(e,o,a){const u=e.clippingPlanes,p=e.clipIntersection,d=e.clipShadows,m=t.get(e);if(!i||null===u||0===u.length||s&&!d)s?h(null):c();else{const t=s?0:r,e=4*t;let i=m.clippingState||null;l.value=i,i=h(u,o,e,a);for(let r=0;r!==e;++r)i[r]=n[r];m.clippingState=i,this.numIntersection=p?this.numPlanes:0,this.numPlanes+=t}}}function ol(t){let e=new WeakMap;function n(t,e){return e===it?t.mapping=nt:e===st&&(t.mapping=rt),t}function r(t){const n=t.target;n.removeEventListener("dispose",r);const i=e.get(n);void 0!==i&&(e.delete(n),i.dispose())}return{get:function(i){if(i&&i.isTexture){const s=i.mapping;if(s===it||s===st){if(e.has(i))return n(e.get(i).texture,i.mapping);{const s=i.image;if(s&&s.height>0){const o=t.getRenderTarget(),a=new ws(s.height/2);return a.fromEquirectangularTexture(t,i),e.set(i,a),t.setRenderTarget(o),i.addEventListener("dispose",r),n(a.texture,i.mapping)}return null}}}return i},dispose:function(){e=new WeakMap}}}function al(t){const e={};function n(n){if(void 0!==e[n])return e[n];let r;switch(n){case"WEBGL_depth_texture":r=t.getExtension("WEBGL_depth_texture")||t.getExtension("MOZ_WEBGL_depth_texture")||t.getExtension("WEBKIT_WEBGL_depth_texture");break;case"EXT_texture_filter_anisotropic":r=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case"WEBGL_compressed_texture_s3tc":r=t.getExtension("WEBGL_compressed_texture_s3tc")||t.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case"WEBGL_compressed_texture_pvrtc":r=t.getExtension("WEBGL_compressed_texture_pvrtc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:r=t.getExtension(n)}return e[n]=r,r}return{has:function(t){return null!==n(t)},init:function(t){t.isWebGL2?n("EXT_color_buffer_float"):(n("WEBGL_depth_texture"),n("OES_texture_float"),n("OES_texture_half_float"),n("OES_texture_half_float_linear"),n("OES_standard_derivatives"),n("OES_element_index_uint"),n("OES_vertex_array_object"),n("ANGLE_instanced_arrays")),n("OES_texture_float_linear"),n("EXT_color_buffer_half_float")},get:function(t){const e=n(t);return null===e&&console.warn("THREE.WebGLRenderer: "+t+" extension not supported."),e}}}function ll(t,e,n,r){const i={},s=new WeakMap;function o(t){const a=t.target;null!==a.index&&e.remove(a.index);for(const n in a.attributes)e.remove(a.attributes[n]);a.removeEventListener("dispose",o),delete i[a.id];const l=s.get(a);l&&(e.remove(l),s.delete(a)),r.releaseStatesOfGeometry(a),!0===a.isInstancedBufferGeometry&&delete a._maxInstanceCount,n.memory.geometries--}function a(t){const n=[],r=t.index,i=t.attributes.position;let o=0;if(null!==r){const t=r.array;o=r.version;for(let e=0,r=t.length;e<r;e+=3){const r=t[e+0],i=t[e+1],s=t[e+2];n.push(r,i,i,s,s,r)}}else{const t=i.array;o=i.version;for(let e=0,r=t.length/3-1;e<r;e+=3){const t=e+0,r=e+1,i=e+2;n.push(t,r,r,i,i,t)}}const a=new(Di(n)>65535?Li:Ei)(n,1);a.version=o;const l=s.get(t);l&&e.remove(l),s.set(t,a)}return{get:function(t,e){return!0===i[e.id]?e:(e.addEventListener("dispose",o),i[e.id]=!0,n.memory.geometries++,e)},update:function(t){const n=t.attributes;for(const i in n)e.update(n[i],34962);const r=t.morphAttributes;for(const i in r){const t=r[i];for(let n=0,r=t.length;n<r;n++)e.update(t[n],34962)}},getWireframeAttribute:function(t){const e=s.get(t);if(e){const n=t.index;null!==n&&e.version<n.version&&a(t)}else a(t);return s.get(t)}}}function cl(t,e,n,r){const i=r.isWebGL2;let s,o,a;this.setMode=function(t){s=t},this.setIndex=function(t){o=t.type,a=t.bytesPerElement},this.render=function(e,r){t.drawElements(s,r,o,e*a),n.update(r,s,1)},this.renderInstances=function(r,l,c){if(0===c)return;let h,u;if(i)h=t,u="drawElementsInstanced";else if(u="drawElementsInstancedANGLE",null===(h=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");h[u](s,l,o,r*a,c),n.update(l,s,c)}}function hl(t){const e={frame:0,calls:0,triangles:0,points:0,lines:0};return{memory:{geometries:0,textures:0},render:e,programs:null,autoReset:!0,reset:function(){e.frame++,e.calls=0,e.triangles=0,e.points=0,e.lines=0},update:function(t,n,r){switch(e.calls++,n){case 4:e.triangles+=r*(t/3);break;case 1:e.lines+=r*(t/2);break;case 3:e.lines+=r*(t-1);break;case 2:e.lines+=r*t;break;case 0:e.points+=r*t;break;default:console.error("THREE.WebGLInfo: Unknown draw mode:",n)}}}}function ul(t,e){return t[0]-e[0]}function pl(t,e){return Math.abs(e[1])-Math.abs(t[1])}function dl(t){const e={},n=new Float32Array(8),r=[];for(let i=0;i<8;i++)r[i]=[i,0];return{update:function(i,s,o,a){const l=i.morphTargetInfluences,c=void 0===l?0:l.length;let h=e[s.id];if(void 0===h){h=[];for(let t=0;t<c;t++)h[t]=[t,0];e[s.id]=h}for(let t=0;t<c;t++){const e=h[t];e[0]=t,e[1]=l[t]}h.sort(pl);for(let t=0;t<8;t++)t<c&&h[t][1]?(r[t][0]=h[t][0],r[t][1]=h[t][1]):(r[t][0]=Number.MAX_SAFE_INTEGER,r[t][1]=0);r.sort(ul);const u=o.morphTargets&&s.morphAttributes.position,p=o.morphNormals&&s.morphAttributes.normal;let d=0;for(let t=0;t<8;t++){const e=r[t],i=e[0],o=e[1];i!==Number.MAX_SAFE_INTEGER&&o?(u&&s.getAttribute("morphTarget"+t)!==u[i]&&s.setAttribute("morphTarget"+t,u[i]),p&&s.getAttribute("morphNormal"+t)!==p[i]&&s.setAttribute("morphNormal"+t,p[i]),n[t]=o,d+=o):(u&&!0===s.hasAttribute("morphTarget"+t)&&s.deleteAttribute("morphTarget"+t),p&&!0===s.hasAttribute("morphNormal"+t)&&s.deleteAttribute("morphNormal"+t),n[t]=0)}const m=s.morphTargetsRelative?1:1-d;a.getUniforms().setValue(t,"morphTargetBaseInfluence",m),a.getUniforms().setValue(t,"morphTargetInfluences",n)}}}function ml(t,e,n,r){let i=new WeakMap;function s(t){const e=t.target;e.removeEventListener("dispose",s),n.remove(e.instanceMatrix),null!==e.instanceColor&&n.remove(e.instanceColor)}return{update:function(t){const o=r.render.frame,a=t.geometry,l=e.get(t,a);return i.get(l)!==o&&(e.update(l),i.set(l,o)),t.isInstancedMesh&&(!1===t.hasEventListener("dispose",s)&&t.addEventListener("dispose",s),n.update(t.instanceMatrix,34962),null!==t.instanceColor&&n.update(t.instanceColor,34962)),l},dispose:function(){i=new WeakMap}}}exports.ShaderLib=tl,tl.physical={uniforms:us([tl.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatNormalScale:{value:new On(1,1)},clearcoatNormalMap:{value:null},sheen:{value:new xi(0)},transmission:{value:0},transmissionMap:{value:null}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag};class fl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture2DArray=fl,fl.prototype.isDataTexture2DArray=!0;class gl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture3D=gl,gl.prototype.isDataTexture3D=!0;const xl=new kn,vl=new fl,yl=new gl,_l=new bs,bl=[],wl=[],Ml=new Float32Array(16),Sl=new Float32Array(9),Tl=new Float32Array(4);function El(t,e,n){const r=t[0];if(r<=0||r>0)return t;const i=e*n;let s=bl[i];if(void 0===s&&(s=new Float32Array(i),bl[i]=s),0!==e){r.toArray(s,0);for(let r=1,i=0;r!==e;++r)i+=n,t[r].toArray(s,i)}return s}function Al(t,e){if(t.length!==e.length)return!1;for(let n=0,r=t.length;n<r;n++)if(t[n]!==e[n])return!1;return!0}function Ll(t,e){for(let n=0,r=e.length;n<r;n++)t[n]=e[n]}function Rl(t,e){let n=wl[e];void 0===n&&(n=new Int32Array(e),wl[e]=n);for(let r=0;r!==e;++r)n[r]=t.allocateTextureUnit();return n}function Cl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1f(this.addr,e),n[0]=e)}function Pl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y||(t.uniform2f(this.addr,e.x,e.y),n[0]=e.x,n[1]=e.y);else{if(Al(n,e))return;t.uniform2fv(this.addr,e),Ll(n,e)}}function Dl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z||(t.uniform3f(this.addr,e.x,e.y,e.z),n[0]=e.x,n[1]=e.y,n[2]=e.z);else if(void 0!==e.r)n[0]===e.r&&n[1]===e.g&&n[2]===e.b||(t.uniform3f(this.addr,e.r,e.g,e.b),n[0]=e.r,n[1]=e.g,n[2]=e.b);else{if(Al(n,e))return;t.uniform3fv(this.addr,e),Ll(n,e)}}function Il(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z&&n[3]===e.w||(t.uniform4f(this.addr,e.x,e.y,e.z,e.w),n[0]=e.x,n[1]=e.y,n[2]=e.z,n[3]=e.w);else{if(Al(n,e))return;t.uniform4fv(this.addr,e),Ll(n,e)}}function Bl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix2fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Tl.set(r),t.uniformMatrix2fv(this.addr,!1,Tl),Ll(n,r)}}function Nl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix3fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Sl.set(r),t.uniformMatrix3fv(this.addr,!1,Sl),Ll(n,r)}}function Fl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix4fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Ml.set(r),t.uniformMatrix4fv(this.addr,!1,Ml),Ll(n,r)}}function Ol(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTexture2D(e||xl,i)}function zl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture2DArray(e||vl,i)}function Gl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture3D(e||yl,i)}function Hl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTextureCube(e||_l,i)}function Ul(t,e){const n=this.cache;n[0]!==e&&(t.uniform1i(this.addr,e),n[0]=e)}function kl(t,e){const n=this.cache;Al(n,e)||(t.uniform2iv(this.addr,e),Ll(n,e))}function Vl(t,e){const n=this.cache;Al(n,e)||(t.uniform3iv(this.addr,e),Ll(n,e))}function Wl(t,e){const n=this.cache;Al(n,e)||(t.uniform4iv(this.addr,e),Ll(n,e))}function jl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1ui(this.addr,e),n[0]=e)}function ql(t){switch(t){case 5126:return Cl;case 35664:return Pl;case 35665:return Dl;case 35666:return Il;case 35674:return Bl;case 35675:return Nl;case 35676:return Fl;case 5124:case 35670:return Ul;case 35667:case 35671:return kl;case 35668:case 35672:return Vl;case 35669:case 35673:return Wl;case 5125:return jl;case 35678:case 36198:case 36298:case 36306:case 35682:return Ol;case 35679:case 36299:case 36307:return Gl;case 35680:case 36300:case 36308:case 36293:return Hl;case 36289:case 36303:case 36311:case 36292:return zl}}function Xl(t,e){t.uniform1fv(this.addr,e)}function Yl(t,e){t.uniform1iv(this.addr,e)}function Zl(t,e){t.uniform2iv(this.addr,e)}function Jl(t,e){t.uniform3iv(this.addr,e)}function Ql(t,e){t.uniform4iv(this.addr,e)}function Kl(t,e){const n=El(e,this.size,2);t.uniform2fv(this.addr,n)}function $l(t,e){const n=El(e,this.size,3);t.uniform3fv(this.addr,n)}function tc(t,e){const n=El(e,this.size,4);t.uniform4fv(this.addr,n)}function ec(t,e){const n=El(e,this.size,4);t.uniformMatrix2fv(this.addr,!1,n)}function nc(t,e){const n=El(e,this.size,9);t.uniformMatrix3fv(this.addr,!1,n)}function rc(t,e){const n=El(e,this.size,16);t.uniformMatrix4fv(this.addr,!1,n)}function ic(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTexture2D(e[s]||xl,i[s])}function sc(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTextureCube(e[s]||_l,i[s])}function oc(t){switch(t){case 5126:return Xl;case 35664:return Kl;case 35665:return $l;case 35666:return tc;case 35674:return ec;case 35675:return nc;case 35676:return rc;case 5124:case 35670:return Yl;case 35667:case 35671:return Zl;case 35668:case 35672:return Jl;case 35669:case 35673:return Ql;case 35678:case 36198:case 36298:case 36306:case 35682:return ic;case 35680:case 36300:case 36308:case 36293:return sc}}function ac(t,e,n){this.id=t,this.addr=n,this.cache=[],this.setValue=ql(e.type)}function lc(t,e,n){this.id=t,this.addr=n,this.cache=[],this.size=e.size,this.setValue=oc(e.type)}function cc(t){this.id=t,this.seq=[],this.map={}}lc.prototype.updateCache=function(t){const e=this.cache;t instanceof 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texture2DProjLodEXT textureProjLod","#define textureCubeLodEXT textureLod","#define texture2DGradEXT textureGrad","#define texture2DProjGradEXT textureProjGrad","#define textureCubeGradEXT textureGrad"].join("\n")+"\n"+x);const y=v+x+a,_=mc(i,35633,v+g+o),b=mc(i,35632,y);if(i.attachShader(f,_),i.attachShader(f,b),void 0!==n.index0AttributeName?i.bindAttribLocation(f,0,n.index0AttributeName):!0===n.morphTargets&&i.bindAttribLocation(f,0,"position"),i.linkProgram(f),t.debug.checkShaderErrors){const t=i.getProgramInfoLog(f).trim(),e=i.getShaderInfoLog(_).trim(),n=i.getShaderInfoLog(b).trim();let r=!0,s=!0;if(!1===i.getProgramParameter(f,35714)){r=!1;const e=vc(i,_,"vertex"),n=vc(i,b,"fragment");console.error("THREE.WebGLProgram: shader error: ",i.getError(),"35715",i.getProgramParameter(f,35715),"gl.getProgramInfoLog",t,e,n)}else""!==t?console.warn("THREE.WebGLProgram: gl.getProgramInfoLog()",t):""!==e&&""!==n||(s=!1);s&&(this.diagnostics={runnable:r,programLog:t,vertexShader:{log:e,prefix:g},fragmentShader:{log:n,prefix:x}})}let w,M;return i.deleteShader(_),i.deleteShader(b),this.getUniforms=function(){return void 0===w&&(w=new dc(i,f)),w},this.getAttributes=function(){return void 0===M&&(M=Sc(i,f)),M},this.destroy=function(){r.releaseStatesOfProgram(this),i.deleteProgram(f),this.program=void 0},this.name=n.shaderName,this.id=fc++,this.cacheKey=e,this.usedTimes=1,this.program=f,this.vertexShader=_,this.fragmentShader=b,this}function kc(t,e,n,r,i,s){const o=[],a=r.isWebGL2,l=r.logarithmicDepthBuffer,c=r.floatVertexTextures,h=r.maxVertexUniforms,u=r.vertexTextures;let m=r.precision;const f={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",MeshPhongMaterial:"phong",MeshToonMaterial:"toon",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",MeshMatcapMaterial:"matcap",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow",SpriteMaterial:"sprite"},g=["precision","isWebGL2","supportsVertexTextures","outputEncoding","instancing","instancingColor","map","mapEncoding","matcap","matcapEncoding","envMap","envMapMode","envMapEncoding","envMapCubeUV","lightMap","lightMapEncoding","aoMap","emissiveMap","emissiveMapEncoding","bumpMap","normalMap","objectSpaceNormalMap","tangentSpaceNormalMap","clearcoatMap","clearcoatRoughnessMap","clearcoatNormalMap","displacementMap","specularMap","roughnessMap","metalnessMap","gradientMap","alphaMap","combine","vertexColors","vertexTangents","vertexUvs","uvsVertexOnly","fog","useFog","fogExp2","flatShading","sizeAttenuation","logarithmicDepthBuffer","skinning","maxBones","useVertexTexture","morphTargets","morphNormals","maxMorphTargets","maxMorphNormals","premultipliedAlpha","numDirLights","numPointLights","numSpotLights","numHemiLights","numRectAreaLights","numDirLightShadows","numPointLightShadows","numSpotLightShadows","shadowMapEnabled","shadowMapType","toneMapping","physicallyCorrectLights","alphaTest","doubleSided","flipSided","numClippingPlanes","numClipIntersection","depthPacking","dithering","sheen","transmissionMap"];function x(t){let e;return t&&t.isTexture?e=t.encoding:t&&t.isWebGLRenderTarget?(console.warn("THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead."),e=t.texture.encoding):e=Xe,e}return{getParameters:function(i,o,g,v,y){const _=v.fog,b=i.isMeshStandardMaterial?v.environment:null,w=e.get(i.envMap||b),M=f[i.type],S=y.isSkinnedMesh?function(t){const e=t.skeleton.bones;if(c)return 1024;{const t=h,n=Math.floor((t-20)/4),r=Math.min(n,e.length);return r<e.length?(console.warn("THREE.WebGLRenderer: Skeleton has "+e.length+" bones. This GPU supports "+r+"."),0):r}}(y):0;let T,E;if(null!==i.precision&&(m=r.getMaxPrecision(i.precision))!==i.precision&&console.warn("THREE.WebGLProgram.getParameters:",i.precision,"not supported, using",m,"instead."),M){const t=tl[M];T=t.vertexShader,E=t.fragmentShader}else T=i.vertexShader,E=i.fragmentShader;const A=t.getRenderTarget();return{isWebGL2:a,shaderID:M,shaderName:i.type,vertexShader:T,fragmentShader:E,defines:i.defines,isRawShaderMaterial:!0===i.isRawShaderMaterial,glslVersion:i.glslVersion,precision:m,instancing:!0===y.isInstancedMesh,instancingColor:!0===y.isInstancedMesh&&null!==y.instanceColor,supportsVertexTextures:u,outputEncoding:null!==A?x(A.texture):t.outputEncoding,map:!!i.map,mapEncoding:x(i.map),matcap:!!i.matcap,matcapEncoding:x(i.matcap),envMap:!!w,envMapMode:w&&w.mapping,envMapEncoding:x(w),envMapCubeUV:!!w&&(w.mapping===ot||w.mapping===at),lightMap:!!i.lightMap,lightMapEncoding:x(i.lightMap),aoMap:!!i.aoMap,emissiveMap:!!i.emissiveMap,emissiveMapEncoding:x(i.emissiveMap),bumpMap:!!i.bumpMap,normalMap:!!i.normalMap,objectSpaceNormalMap:i.normalMapType===sn,tangentSpaceNormalMap:i.normalMapType===rn,clearcoatMap:!!i.clearcoatMap,clearcoatRoughnessMap:!!i.clearcoatRoughnessMap,clearcoatNormalMap:!!i.clearcoatNormalMap,displacementMap:!!i.displacementMap,roughnessMap:!!i.roughnessMap,metalnessMap:!!i.metalnessMap,specularMap:!!i.specularMap,alphaMap:!!i.alphaMap,gradientMap:!!i.gradientMap,sheen:!!i.sheen,transmissionMap:!!i.transmissionMap,combine:i.combine,vertexTangents:i.normalMap&&i.vertexTangents,vertexColors:i.vertexColors,vertexUvs:!!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatMap||i.clearcoatRoughnessMap||i.clearcoatNormalMap||i.displacementMap||i.transmissionMap),uvsVertexOnly:!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatNormalMap||i.transmissionMap||!i.displacementMap),fog:!!_,useFog:i.fog,fogExp2:_&&_.isFogExp2,flatShading:!!i.flatShading,sizeAttenuation:i.sizeAttenuation,logarithmicDepthBuffer:l,skinning:i.skinning&&S>0,maxBones:S,useVertexTexture:c,morphTargets:i.morphTargets,morphNormals:i.morphNormals,maxMorphTargets:t.maxMorphTargets,maxMorphNormals:t.maxMorphNormals,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numClippingPlanes:s.numPlanes,numClipIntersection:s.numIntersection,dithering:i.dithering,shadowMapEnabled:t.shadowMap.enabled&&g.length>0,shadowMapType:t.shadowMap.type,toneMapping:i.toneMapped?t.toneMapping:Z,physicallyCorrectLights:t.physicallyCorrectLights,premultipliedAlpha:i.premultipliedAlpha,alphaTest:i.alphaTest,doubleSided:i.side===d,flipSided:i.side===p,depthPacking:void 0!==i.depthPacking&&i.depthPacking,index0AttributeName:i.index0AttributeName,extensionDerivatives:i.extensions&&i.extensions.derivatives,extensionFragDepth:i.extensions&&i.extensions.fragDepth,extensionDrawBuffers:i.extensions&&i.extensions.drawBuffers,extensionShaderTextureLOD:i.extensions&&i.extensions.shaderTextureLOD,rendererExtensionFragDepth:a||n.has("EXT_frag_depth"),rendererExtensionDrawBuffers:a||n.has("WEBGL_draw_buffers"),rendererExtensionShaderTextureLod:a||n.has("EXT_shader_texture_lod"),customProgramCacheKey:i.customProgramCacheKey()}},getProgramCacheKey:function(e){const n=[];if(e.shaderID?n.push(e.shaderID):(n.push(e.fragmentShader),n.push(e.vertexShader)),void 0!==e.defines)for(const t in e.defines)n.push(t),n.push(e.defines[t]);if(!1===e.isRawShaderMaterial){for(let t=0;t<g.length;t++)n.push(e[g[t]]);n.push(t.outputEncoding),n.push(t.gammaFactor)}return n.push(e.customProgramCacheKey),n.join()},getUniforms:function(t){const e=f[t.type];let n;if(e){const t=tl[e];n=ps.clone(t.uniforms)}else n=t.uniforms;return n},acquireProgram:function(e,n){let r;for(let t=0,i=o.length;t<i;t++){const e=o[t];if(e.cacheKey===n){++(r=e).usedTimes;break}}return void 0===r&&(r=new Uc(t,n,e,i),o.push(r)),r},releaseProgram:function(t){if(0==--t.usedTimes){const e=o.indexOf(t);o[e]=o[o.length-1],o.pop(),t.destroy()}},programs:o}}function Vc(){let t=new WeakMap;return{get:function(e){let n=t.get(e);return void 0===n&&(n={},t.set(e,n)),n},remove:function(e){t.delete(e)},update:function(e,n,r){t.get(e)[n]=r},dispose:function(){t=new WeakMap}}}function Wc(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.program!==e.program?t.program.id-e.program.id:t.material.id!==e.material.id?t.material.id-e.material.id:t.z!==e.z?t.z-e.z:t.id-e.id}function jc(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:t.id-e.id}function qc(t){const e=[];let n=0;const r=[],i=[],s={id:-1};function o(r,i,o,a,l,c){let h=e[n];const u=t.get(o);return void 0===h?(h={id:r.id,object:r,geometry:i,material:o,program:u.program||s,groupOrder:a,renderOrder:r.renderOrder,z:l,group:c},e[n]=h):(h.id=r.id,h.object=r,h.geometry=i,h.material=o,h.program=u.program||s,h.groupOrder=a,h.renderOrder=r.renderOrder,h.z=l,h.group=c),n++,h}return{opaque:r,transparent:i,init:function(){n=0,r.length=0,i.length=0},push:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).push(c)},unshift:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).unshift(c)},finish:function(){for(let t=n,r=e.length;t<r;t++){const n=e[t];if(null===n.id)break;n.id=null,n.object=null,n.geometry=null,n.material=null,n.program=null,n.group=null}},sort:function(t,e){r.length>1&&r.sort(t||Wc),i.length>1&&i.sort(e||jc)}}}function Xc(t){let e=new WeakMap;return{get:function(n,r){let i;return!1===e.has(n)?(i=new qc(t),e.set(n,[i])):r>=e.get(n).length?(i=new qc(t),e.get(n).push(i)):i=e.get(n)[r],i},dispose:function(){e=new WeakMap}}}function Yc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":n={direction:new Yn,color:new xi};break;case"SpotLight":n={position:new Yn,direction:new Yn,color:new xi,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":n={position:new Yn,color:new xi,distance:0,decay:0};break;case"HemisphereLight":n={direction:new Yn,skyColor:new xi,groundColor:new xi};break;case"RectAreaLight":n={color:new xi,position:new Yn,halfWidth:new Yn,halfHeight:new Yn}}return t[e.id]=n,n}}}function Zc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":case"SpotLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On};break;case"PointLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On,shadowCameraNear:1,shadowCameraFar:1e3}}return t[e.id]=n,n}}}let Jc=0;function Qc(t,e){return(e.castShadow?1:0)-(t.castShadow?1:0)}function Kc(t,e){const n=new Yc,r=Zc(),i={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadow:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]};for(let l=0;l<9;l++)i.probe.push(new Yn);const s=new Yn,o=new wr,a=new wr;return{setup:function(s){let o=0,a=0,l=0;for(let t=0;t<9;t++)i.probe[t].set(0,0,0);let c=0,h=0,u=0,p=0,d=0,m=0,f=0,g=0;s.sort(Qc);for(let t=0,e=s.length;t<e;t++){const e=s[t],x=e.color,v=e.intensity,y=e.distance,_=e.shadow&&e.shadow.map?e.shadow.map.texture:null;if(e.isAmbientLight)o+=x.r*v,a+=x.g*v,l+=x.b*v;else if(e.isLightProbe)for(let t=0;t<9;t++)i.probe[t].addScaledVector(e.sh.coefficients[t],v);else if(e.isDirectionalLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.directionalShadow[c]=n,i.directionalShadowMap[c]=_,i.directionalShadowMatrix[c]=e.shadow.matrix,m++}i.directional[c]=t,c++}else if(e.isSpotLight){const t=n.get(e);if(t.position.setFromMatrixPosition(e.matrixWorld),t.color.copy(x).multiplyScalar(v),t.distance=y,t.coneCos=Math.cos(e.angle),t.penumbraCos=Math.cos(e.angle*(1-e.penumbra)),t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.spotShadow[u]=n,i.spotShadowMap[u]=_,i.spotShadowMatrix[u]=e.shadow.matrix,g++}i.spot[u]=t,u++}else if(e.isRectAreaLight){const t=n.get(e);t.color.copy(x).multiplyScalar(v),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),i.rectArea[p]=t,p++}else if(e.isPointLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),t.distance=e.distance,t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,n.shadowCameraNear=t.camera.near,n.shadowCameraFar=t.camera.far,i.pointShadow[h]=n,i.pointShadowMap[h]=_,i.pointShadowMatrix[h]=e.shadow.matrix,f++}i.point[h]=t,h++}else if(e.isHemisphereLight){const t=n.get(e);t.skyColor.copy(e.color).multiplyScalar(v),t.groundColor.copy(e.groundColor).multiplyScalar(v),i.hemi[d]=t,d++}}p>0&&(e.isWebGL2?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_float_linear")?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_half_float_linear")?(i.rectAreaLTC1=$a.LTC_HALF_1,i.rectAreaLTC2=$a.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.")),i.ambient[0]=o,i.ambient[1]=a,i.ambient[2]=l;const x=i.hash;x.directionalLength===c&&x.pointLength===h&&x.spotLength===u&&x.rectAreaLength===p&&x.hemiLength===d&&x.numDirectionalShadows===m&&x.numPointShadows===f&&x.numSpotShadows===g||(i.directional.length=c,i.spot.length=u,i.rectArea.length=p,i.point.length=h,i.hemi.length=d,i.directionalShadow.length=m,i.directionalShadowMap.length=m,i.pointShadow.length=f,i.pointShadowMap.length=f,i.spotShadow.length=g,i.spotShadowMap.length=g,i.directionalShadowMatrix.length=m,i.pointShadowMatrix.length=f,i.spotShadowMatrix.length=g,x.directionalLength=c,x.pointLength=h,x.spotLength=u,x.rectAreaLength=p,x.hemiLength=d,x.numDirectionalShadows=m,x.numPointShadows=f,x.numSpotShadows=g,i.version=Jc++)},setupView:function(t,e){let n=0,r=0,l=0,c=0,h=0;const u=e.matrixWorldInverse;for(let p=0,d=t.length;p<d;p++){const e=t[p];if(e.isDirectionalLight){const t=i.directional[n];t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),n++}else if(e.isSpotLight){const t=i.spot[l];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),l++}else if(e.isRectAreaLight){const t=i.rectArea[c];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),a.identity(),o.copy(e.matrixWorld),o.premultiply(u),a.extractRotation(o),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),t.halfWidth.applyMatrix4(a),t.halfHeight.applyMatrix4(a),c++}else if(e.isPointLight){const t=i.point[r];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),r++}else if(e.isHemisphereLight){const t=i.hemi[h];t.direction.setFromMatrixPosition(e.matrixWorld),t.direction.transformDirection(u),t.direction.normalize(),h++}}},state:i}}function $c(t,e){const n=new Kc(t,e),r=[],i=[];return{init:function(){r.length=0,i.length=0},state:{lightsArray:r,shadowsArray:i,lights:n},setupLights:function(){n.setup(r)},setupLightsView:function(t){n.setupView(r,t)},pushLight:function(t){r.push(t)},pushShadow:function(t){i.push(t)}}}function th(t,e){let n=new WeakMap;return{get:function(r,i=0){let s;return!1===n.has(r)?(s=new $c(t,e),n.set(r,[s])):i>=n.get(r).length?(s=new $c(t,e),n.get(r).push(s)):s=n.get(r)[i],s},dispose:function(){n=new WeakMap}}}class eh extends hi{constructor(t){super(),this.type="MeshDepthMaterial",this.depthPacking=en,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.depthPacking=t.depthPacking,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this}}exports.MeshDepthMaterial=eh,eh.prototype.isMeshDepthMaterial=!0;class nh extends hi{constructor(t){super(),this.type="MeshDistanceMaterial",this.referencePosition=new Yn,this.nearDistance=1,this.farDistance=1e3,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.referencePosition.copy(t.referencePosition),this.nearDistance=t.nearDistance,this.farDistance=t.farDistance,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this}}exports.MeshDistanceMaterial=nh,nh.prototype.isMeshDistanceMaterial=!0;var rh="uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}",ih="void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";function sh(t,e,n){let r=new Es;const i=new On,s=new On,o=new Wn,a=[],c=[],m={},f={0:p,1:u,2:d},x=new fs({defines:{SAMPLE_RATE:.25,HALF_SAMPLE_RATE:1/8},uniforms:{shadow_pass:{value:null},resolution:{value:new On},radius:{value:4}},vertexShader:ih,fragmentShader:rh}),v=x.clone();v.defines.HORIZONTAL_PASS=1;const y=new ki;y.setAttribute("position",new bi(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const _=new os(y,x),b=this;function w(n,r){const i=e.update(_);x.uniforms.shadow_pass.value=n.map.texture,x.uniforms.resolution.value=n.mapSize,x.uniforms.radius.value=n.radius,t.setRenderTarget(n.mapPass),t.clear(),t.renderBufferDirect(r,null,i,x,_,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,t.setRenderTarget(n.map),t.clear(),t.renderBufferDirect(r,null,i,v,_,null)}function M(t,e,n){const r=t<<0|e<<1|n<<2;let i=a[r];return void 0===i&&(i=new eh({depthPacking:nn,morphTargets:t,skinning:e}),a[r]=i),i}function S(t,e,n){const r=t<<0|e<<1|n<<2;let i=c[r];return void 0===i&&(i=new nh({morphTargets:t,skinning:e}),c[r]=i),i}function T(e,n,r,i,s,o,a){let l=null,c=M,u=e.customDepthMaterial;if(!0===i.isPointLight&&(c=S,u=e.customDistanceMaterial),void 0===u){let t=!1;!0===r.morphTargets&&(t=n.morphAttributes&&n.morphAttributes.position&&n.morphAttributes.position.length>0);let i=!1;!0===e.isSkinnedMesh&&(!0===r.skinning?i=!0:console.warn("THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:",e)),l=c(t,i,!0===e.isInstancedMesh)}else l=u;if(t.localClippingEnabled&&!0===r.clipShadows&&0!==r.clippingPlanes.length){const t=l.uuid,e=r.uuid;let n=m[t];void 0===n&&(n={},m[t]=n);let i=n[e];void 0===i&&(i=l.clone(),n[e]=i),l=i}return l.visible=r.visible,l.wireframe=r.wireframe,l.side=a===h?null!==r.shadowSide?r.shadowSide:r.side:null!==r.shadowSide?r.shadowSide:f[r.side],l.clipShadows=r.clipShadows,l.clippingPlanes=r.clippingPlanes,l.clipIntersection=r.clipIntersection,l.wireframeLinewidth=r.wireframeLinewidth,l.linewidth=r.linewidth,!0===i.isPointLight&&!0===l.isMeshDistanceMaterial&&(l.referencePosition.setFromMatrixPosition(i.matrixWorld),l.nearDistance=s,l.farDistance=o),l}function E(n,i,s,o,a){if(!1===n.visible)return;if(n.layers.test(i.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&a===h)&&(!n.frustumCulled||r.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(s.matrixWorldInverse,n.matrixWorld);const r=e.update(n),i=n.material;if(Array.isArray(i)){const e=r.groups;for(let l=0,c=e.length;l<c;l++){const c=e[l],h=i[c.materialIndex];if(h&&h.visible){const e=T(n,r,h,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,c)}}}else if(i.visible){const e=T(n,r,i,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,null)}}const l=n.children;for(let t=0,e=l.length;t<e;t++)E(l[t],i,s,o,a)}this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=l,this.render=function(e,a,l){if(!1===b.enabled)return;if(!1===b.autoUpdate&&!1===b.needsUpdate)return;if(0===e.length)return;const c=t.getRenderTarget(),u=t.getActiveCubeFace(),p=t.getActiveMipmapLevel(),d=t.state;d.setBlending(g),d.buffers.color.setClear(1,1,1,1),d.buffers.depth.setTest(!0),d.setScissorTest(!1);for(let m=0,f=e.length;m<f;m++){const c=e[m],u=c.shadow;if(void 0===u){console.warn("THREE.WebGLShadowMap:",c,"has no shadow.");continue}if(!1===u.autoUpdate&&!1===u.needsUpdate)continue;i.copy(u.mapSize);const p=u.getFrameExtents();if(i.multiply(p),s.copy(u.mapSize),(i.x>n||i.y>n)&&(i.x>n&&(s.x=Math.floor(n/p.x),i.x=s.x*p.x,u.mapSize.x=s.x),i.y>n&&(s.y=Math.floor(n/p.y),i.y=s.y*p.y,u.mapSize.y=s.y)),null===u.map&&!u.isPointLightShadow&&this.type===h){const t={minFilter:gt,magFilter:gt,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.mapPass=new jn(i.x,i.y,t),u.camera.updateProjectionMatrix()}if(null===u.map){const t={minFilter:ut,magFilter:ut,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.camera.updateProjectionMatrix()}t.setRenderTarget(u.map),t.clear();const f=u.getViewportCount();for(let t=0;t<f;t++){const e=u.getViewport(t);o.set(s.x*e.x,s.y*e.y,s.x*e.z,s.y*e.w),d.viewport(o),u.updateMatrices(c,t),r=u.getFrustum(),E(a,l,u.camera,c,this.type)}u.isPointLightShadow||this.type!==h||w(u,l),u.needsUpdate=!1}b.needsUpdate=!1,t.setRenderTarget(c,u,p)}}function oh(t,e,n){const o=n.isWebGL2;const a=new function(){let e=!1;const n=new Wn;let r=null;const i=new Wn(0,0,0,0);return{setMask:function(n){r===n||e||(t.colorMask(n,n,n,n),r=n)},setLocked:function(t){e=t},setClear:function(e,r,s,o,a){!0===a&&(e*=o,r*=o,s*=o),n.set(e,r,s,o),!1===i.equals(n)&&(t.clearColor(e,r,s,o),i.copy(n))},reset:function(){e=!1,r=null,i.set(-1,0,0,0)}}},l=new function(){let e=!1,n=null,r=null,i=null;return{setTest:function(t){t?mt(2929):ft(2929)},setMask:function(r){n===r||e||(t.depthMask(r),n=r)},setFunc:function(e){if(r!==e){if(e)switch(e){case 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ah(t,e,n,r,i,s,o){const a=i.isWebGL2,l=i.maxTextures,c=i.maxCubemapSize,h=i.maxTextureSize,u=i.maxSamples,p=new WeakMap;let d,m=!1;try{m="undefined"!=typeof OffscreenCanvas&&null!==new OffscreenCanvas(1,1).getContext("2d")}catch(z){}function f(t,e){return m?new OffscreenCanvas(t,e):document.createElementNS("http://www.w3.org/1999/xhtml","canvas")}function g(t,e,n,r){let i=1;if((t.width>r||t.height>r)&&(i=r/Math.max(t.width,t.height)),i<1||!0===e){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const r=e?Fn.floorPowerOfTwo:Math.floor,s=r(i*t.width),o=r(i*t.height);void 0===d&&(d=f(s,o));const a=n?f(s,o):d;return a.width=s,a.height=o,a.getContext("2d").drawImage(t,0,0,s,o),console.warn("THREE.WebGLRenderer: Texture has been resized from ("+t.width+"x"+t.height+") to ("+s+"x"+o+")."),a}return"data"in t&&console.warn("THREE.WebGLRenderer: 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r=b[e];n.texImage2D(34069+t,e+1,f,d,m,r.image[t])}}e.__maxMipLevel=b.length}v(r,p)&&y(34067,r,u.width,u.height);e.__version=r.version,r.onUpdate&&r.onUpdate(r)}(o,e,i):(n.activeTexture(33984+i),n.bindTexture(34067,o.__webglTexture))}const A={[lt]:10497,[ct]:33071,[ht]:33648},L={[ut]:9728,[pt]:9984,[mt]:9986,[gt]:9729,[xt]:9985,[yt]:9987};function R(n,s,o){if(o?(t.texParameteri(n,10242,A[s.wrapS]),t.texParameteri(n,10243,A[s.wrapT]),32879!==n&&35866!==n||t.texParameteri(n,32882,A[s.wrapR]),t.texParameteri(n,10240,L[s.magFilter]),t.texParameteri(n,10241,L[s.minFilter])):(t.texParameteri(n,10242,33071),t.texParameteri(n,10243,33071),32879!==n&&35866!==n||t.texParameteri(n,32882,33071),s.wrapS===ct&&s.wrapT===ct||console.warn("THREE.WebGLRenderer: Texture is not power of two. 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l=function(t){return!a&&(t.wrapS!==ct||t.wrapT!==ct||t.minFilter!==ut&&t.minFilter!==gt)}(r)&&!1===x(r.image),c=g(r.image,l,!1,h),u=x(c)||a,p=s.convert(r.format);let d,m=s.convert(r.type),f=_(r.internalFormat,p,m);R(o,r,u);const b=r.mipmaps;if(r.isDepthTexture)f=6402,a?f=r.type===At?36012:r.type===Et?33190:r.type===Dt?35056:33189:r.type===At&&console.error("WebGLRenderer: Floating point depth texture requires WebGL2."),r.format===Gt&&6402===f&&r.type!==St&&r.type!==Et&&(console.warn("THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture."),r.type=St,m=s.convert(r.type)),r.format===Ht&&6402===f&&(f=34041,r.type!==Dt&&(console.warn("THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture."),r.type=Dt,m=s.convert(r.type))),n.texImage2D(3553,0,f,c.width,c.height,0,p,m,null);else if(r.isDataTexture)if(b.length>0&&u){for(let 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n.texImage2D(3553,0,f,p,m,c),e.__maxMipLevel=0;v(r,u)&&y(o,r,c.width,c.height),e.__version=r.version,r.onUpdate&&r.onUpdate(r)}function D(e,i,o,a){const l=i.texture,c=s.convert(l.format),h=s.convert(l.type),u=_(l.internalFormat,c,h);32879===a||35866===a?n.texImage3D(a,0,u,i.width,i.height,i.depth,0,c,h,null):n.texImage2D(a,0,u,i.width,i.height,0,c,h,null),t.bindFramebuffer(36160,e),t.framebufferTexture2D(36160,o,a,r.get(l).__webglTexture,0),t.bindFramebuffer(36160,null)}function I(e,n,r){if(t.bindRenderbuffer(36161,e),n.depthBuffer&&!n.stencilBuffer){let i=33189;if(r){const e=n.depthTexture;e&&e.isDepthTexture&&(e.type===At?i=36012:e.type===Et&&(i=33190));const r=N(n);t.renderbufferStorageMultisample(36161,r,i,n.width,n.height)}else t.renderbufferStorage(36161,i,n.width,n.height);t.framebufferRenderbuffer(36160,36096,36161,e)}else if(n.depthBuffer&&n.stencilBuffer){if(r){const e=N(n);t.renderbufferStorageMultisample(36161,e,35056,n.width,n.height)}else 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n.COMPRESSED_RGBA_S3TC_DXT3_EXT;if(t===Jt)return n.COMPRESSED_RGBA_S3TC_DXT5_EXT}if(t===Qt||t===Kt||t===$t||t===te){if(null===(n=e.get("WEBGL_compressed_texture_pvrtc")))return null;if(t===Qt)return n.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;if(t===Kt)return n.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;if(t===$t)return n.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;if(t===te)return n.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG}if(t===ee)return null!==(n=e.get("WEBGL_compressed_texture_etc1"))?n.COMPRESSED_RGB_ETC1_WEBGL:null;if((t===ne||t===re)&&null!==(n=e.get("WEBGL_compressed_texture_etc"))){if(t===ne)return n.COMPRESSED_RGB8_ETC2;if(t===re)return n.COMPRESSED_RGBA8_ETC2_EAC}return 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e=c.get(t.inputSource);e&&e.dispatchEvent({type:t.type,data:t.inputSource})}function x(){c.forEach(function(t,e){t.disconnect(e)}),c.clear(),m=null,f=null,t.setFramebuffer(null),t.setRenderTarget(t.getRenderTarget()),M.stop(),n.isPresenting=!1,n.dispatchEvent({type:"sessionend"})}function v(t){const e=r.inputSources;for(let n=0;n<l.length;n++)c.set(e[n],l[n]);for(let n=0;n<t.removed.length;n++){const e=t.removed[n],r=c.get(e);r&&(r.dispatchEvent({type:"disconnected",data:e}),c.delete(e))}for(let n=0;n<t.added.length;n++){const e=t.added[n],r=c.get(e);r&&r.dispatchEvent({type:"connected",data:e})}}this.enabled=!1,this.isPresenting=!1,this.getController=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getTargetRaySpace()},this.getControllerGrip=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getGripSpace()},this.getHand=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getHandSpace()},this.setFramebufferScaleFactor=function(t){i=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(t){o=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return s},this.getSession=function(){return r},this.setSession=async function(t){if(null!==(r=t)){r.addEventListener("select",g),r.addEventListener("selectstart",g),r.addEventListener("selectend",g),r.addEventListener("squeeze",g),r.addEventListener("squeezestart",g),r.addEventListener("squeezeend",g),r.addEventListener("end",x),r.addEventListener("inputsourceschange",v);const t=e.getContextAttributes();!0!==t.xrCompatible&&await e.makeXRCompatible();const a={antialias:t.antialias,alpha:t.alpha,depth:t.depth,stencil:t.stencil,framebufferScaleFactor:i},l=new XRWebGLLayer(r,e,a);r.updateRenderState({baseLayer:l}),s=await r.requestReferenceSpace(o),M.setContext(r),M.start(),n.isPresenting=!0,n.dispatchEvent({type:"sessionstart"})}};const y=new Yn,_=new Yn;function b(t,e){null===e?t.matrixWorld.copy(t.matrix):t.matrixWorld.multiplyMatrices(e.matrixWorld,t.matrix),t.matrixWorldInverse.copy(t.matrixWorld).invert()}this.getCamera=function(t){d.near=u.near=h.near=t.near,d.far=u.far=h.far=t.far,m===d.near&&f===d.far||(r.updateRenderState({depthNear:d.near,depthFar:d.far}),m=d.near,f=d.far);const e=t.parent,n=d.cameras;b(d,e);for(let r=0;r<n.length;r++)b(n[r],e);t.matrixWorld.copy(d.matrixWorld),t.matrix.copy(d.matrix),t.matrix.decompose(t.position,t.quaternion,t.scale);const i=t.children;for(let r=0,s=i.length;r<s;r++)i[r].updateMatrixWorld(!0);return 2===n.length?function(t,e,n){y.setFromMatrixPosition(e.matrixWorld),_.setFromMatrixPosition(n.matrixWorld);const 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r=e[t],s=n.getViewport(r),o=p[t];o.matrix.fromArray(r.transform.matrix),o.projectionMatrix.fromArray(r.projectionMatrix),o.viewport.set(s.x,s.y,s.width,s.height),0===t&&d.matrix.copy(o.matrix),!0===i&&d.cameras.push(o)}}const i=r.inputSources;for(let t=0;t<l.length;t++){const e=l[t],r=i[t];e.update(r,n,s)}w&&w(e,n)}),this.setAnimationLoop=function(t){w=t},this.dispose=function(){}}function dh(t){function e(e,n){e.opacity.value=n.opacity,n.color&&e.diffuse.value.copy(n.color),n.emissive&&e.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),n.map&&(e.map.value=n.map),n.alphaMap&&(e.alphaMap.value=n.alphaMap),n.specularMap&&(e.specularMap.value=n.specularMap);const r=t.get(n).envMap;if(r){e.envMap.value=r,e.flipEnvMap.value=r.isCubeTexture&&r._needsFlipEnvMap?-1:1,e.reflectivity.value=n.reflectivity,e.refractionRatio.value=n.refractionRatio;const i=t.get(r).__maxMipLevel;void 0!==i&&(e.maxMipLevel.value=i)}let i,s;n.lightMap&&(e.lightMap.value=n.lightMap,e.lightMapIntensity.value=n.lightMapIntensity),n.aoMap&&(e.aoMap.value=n.aoMap,e.aoMapIntensity.value=n.aoMapIntensity),n.map?i=n.map:n.specularMap?i=n.specularMap:n.displacementMap?i=n.displacementMap:n.normalMap?i=n.normalMap:n.bumpMap?i=n.bumpMap:n.roughnessMap?i=n.roughnessMap:n.metalnessMap?i=n.metalnessMap:n.alphaMap?i=n.alphaMap:n.emissiveMap?i=n.emissiveMap:n.clearcoatMap?i=n.clearcoatMap:n.clearcoatNormalMap?i=n.clearcoatNormalMap:n.clearcoatRoughnessMap&&(i=n.clearcoatRoughnessMap),void 0!==i&&(i.isWebGLRenderTarget&&(i=i.texture),!0===i.matrixAutoUpdate&&i.updateMatrix(),e.uvTransform.value.copy(i.matrix)),n.aoMap?s=n.aoMap:n.lightMap&&(s=n.lightMap),void 0!==s&&(s.isWebGLRenderTarget&&(s=s.texture),!0===s.matrixAutoUpdate&&s.updateMatrix(),e.uv2Transform.value.copy(s.matrix))}function 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Mt(t,e,n,r,i,s){if(t.onBeforeRender(f,e,n,r,i,s),t.modelViewMatrix.multiplyMatrices(n.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),t.isImmediateRenderObject){const r=Tt(n,e,i,t);W.setMaterial(i),ct.reset(),function(t,e){t.render(function(t){f.renderBufferImmediate(t,e)})}(t,r)}else f.renderBufferDirect(n,e,r,i,t,s);t.onAfterRender(f,e,n,r,i,s)}function St(t,e,n){!0!==e.isScene&&(e=H);const r=q.get(t),i=p.state.lights,s=p.state.shadowsArray,o=i.state.version,a=$.getParameters(t,i.state,s,e,n),l=$.getProgramCacheKey(a);let c=r.program,h=!0;if(r.environment=t.isMeshStandardMaterial?e.environment:null,r.fog=e.fog,r.envMap=Y.get(t.envMap||r.environment),void 0===c)t.addEventListener("dispose",xt);else if(c.cacheKey!==l)vt(t);else if(r.lightsStateVersion!==o)h=!1;else{if(void 0!==a.shaderID)return;h=!1}h&&(a.uniforms=$.getUniforms(t),t.onBeforeCompile(a,f),c=$.acquireProgram(a,l),r.program=c,r.uniforms=a.uniforms,r.outputEncoding=a.outputEncoding);const u=r.uniforms;(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(r.numClippingPlanes=rt.numPlanes,r.numIntersection=rt.numIntersection,u.clippingPlanes=rt.uniform),r.needsLights=function(t){return t.isMeshLambertMaterial||t.isMeshToonMaterial||t.isMeshPhongMaterial||t.isMeshStandardMaterial||t.isShadowMaterial||t.isShaderMaterial&&!0===t.lights}(t),r.lightsStateVersion=o,r.needsLights&&(u.ambientLightColor.value=i.state.ambient,u.lightProbe.value=i.state.probe,u.directionalLights.value=i.state.directional,u.directionalLightShadows.value=i.state.directionalShadow,u.spotLights.value=i.state.spot,u.spotLightShadows.value=i.state.spotShadow,u.rectAreaLights.value=i.state.rectArea,u.ltc_1.value=i.state.rectAreaLTC1,u.ltc_2.value=i.state.rectAreaLTC2,u.pointLights.value=i.state.point,u.pointLightShadows.value=i.state.pointShadow,u.hemisphereLights.value=i.state.hemi,u.directionalShadowMap.value=i.state.directionalShadowMap,u.directionalShadowMatrix.value=i.state.directionalShadowMatrix,u.spotShadowMap.value=i.state.spotShadowMap,u.spotShadowMatrix.value=i.state.spotShadowMatrix,u.pointShadowMap.value=i.state.pointShadowMap,u.pointShadowMatrix.value=i.state.pointShadowMatrix);const d=r.program.getUniforms(),m=dc.seqWithValue(d.seq,u);r.uniformsList=m}function Tt(t,e,n,r){!0!==e.isScene&&(e=H),X.resetTextureUnits();const i=e.fog,s=n.isMeshStandardMaterial?e.environment:null,o=null===_?f.outputEncoding:_.texture.encoding,a=Y.get(n.envMap||s),l=q.get(n),c=p.state.lights;if(!0===F&&(!0===O||t!==M)){const e=t===M&&n.id===w;rt.setState(n,t,e)}n.version===l.__version?n.fog&&l.fog!==i?St(n,e,r):l.environment!==s?St(n,e,r):l.needsLights&&l.lightsStateVersion!==c.state.version?St(n,e,r):void 0===l.numClippingPlanes||l.numClippingPlanes===rt.numPlanes&&l.numIntersection===rt.numIntersection?l.outputEncoding!==o?St(n,e,r):l.envMap!==a&&St(n,e,r):St(n,e,r):(St(n,e,r),l.__version=n.version);let h=!1,u=!1,d=!1;const m=l.program,g=m.getUniforms(),x=l.uniforms;if(W.useProgram(m.program)&&(h=!0,u=!0,d=!0),n.id!==w&&(w=n.id,u=!0),h||M!==t){if(g.setValue(ht,"projectionMatrix",t.projectionMatrix),V.logarithmicDepthBuffer&&g.setValue(ht,"logDepthBufFC",2/(Math.log(t.far+1)/Math.LN2)),M!==t&&(M=t,u=!0,d=!0),n.isShaderMaterial||n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshStandardMaterial||n.envMap){const e=g.map.cameraPosition;void 0!==e&&e.setValue(ht,G.setFromMatrixPosition(t.matrixWorld))}(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial)&&g.setValue(ht,"isOrthographic",!0===t.isOrthographicCamera),(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial||n.isShadowMaterial||n.skinning)&&g.setValue(ht,"viewMatrix",t.matrixWorldInverse)}if(n.skinning){g.setOptional(ht,r,"bindMatrix"),g.setOptional(ht,r,"bindMatrixInverse");const t=r.skeleton;if(t){const e=t.bones;if(V.floatVertexTextures){if(null===t.boneTexture){let n=Math.sqrt(4*e.length);n=Fn.ceilPowerOfTwo(n),n=Math.max(n,4);const r=new Float32Array(n*n*4);r.set(t.boneMatrices);const i=new Ms(r,n,n,Nt,At);t.boneMatrices=r,t.boneTexture=i,t.boneTextureSize=n}g.setValue(ht,"boneTexture",t.boneTexture,X),g.setValue(ht,"boneTextureSize",t.boneTextureSize)}else g.setOptional(ht,t,"boneMatrices")}}var v,y;return(u||l.receiveShadow!==r.receiveShadow)&&(l.receiveShadow=r.receiveShadow,g.setValue(ht,"receiveShadow",r.receiveShadow)),u&&(g.setValue(ht,"toneMappingExposure",f.toneMappingExposure),l.needsLights&&(y=d,(v=x).ambientLightColor.needsUpdate=y,v.lightProbe.needsUpdate=y,v.directionalLights.needsUpdate=y,v.directionalLightShadows.needsUpdate=y,v.pointLights.needsUpdate=y,v.pointLightShadows.needsUpdate=y,v.spotLights.needsUpdate=y,v.spotLightShadows.needsUpdate=y,v.rectAreaLights.needsUpdate=y,v.hemisphereLights.needsUpdate=y),i&&n.fog&&tt.refreshFogUniforms(x,i),tt.refreshMaterialUniforms(x,n,R,L),dc.upload(ht,l.uniformsList,x,X)),n.isShaderMaterial&&!0===n.uniformsNeedUpdate&&(dc.upload(ht,l.uniformsList,x,X),n.uniformsNeedUpdate=!1),n.isSpriteMaterial&&g.setValue(ht,"center",r.center),g.setValue(ht,"modelViewMatrix",r.modelViewMatrix),g.setValue(ht,"normalMatrix",r.normalMatrix),g.setValue(ht,"modelMatrix",r.matrixWorld),m}_t.setAnimationLoop(function(t){dt.isPresenting||yt&&yt(t)}),"undefined"!=typeof window&&_t.setContext(window),this.setAnimationLoop=function(t){yt=t,dt.setAnimationLoop(t),null===t?_t.stop():_t.start()},this.render=function(t,e){let n,r;if(void 0!==arguments[2]&&(console.warn("THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead."),n=arguments[2]),void 0!==arguments[3]&&(console.warn("THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead."),r=arguments[3]),void 0!==e&&!0!==e.isCamera)return void console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");if(!0===g)return;ct.resetDefaultState(),w=-1,M=null,!0===t.autoUpdate&&t.updateMatrixWorld(),null===e.parent&&e.updateMatrixWorld(),!0===dt.enabled&&!0===dt.isPresenting&&(e=dt.getCamera(e)),!0===t.isScene&&t.onBeforeRender(f,t,e,n||_),(p=nt.get(t,m.length)).init(),m.push(p),z.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),N.setFromProjectionMatrix(z),O=this.localClippingEnabled,F=rt.init(this.clippingPlanes,O,e),(u=et.get(t,d.length)).init(),d.push(u),function t(e,n,r,i){if(!1===e.visible)return;const s=e.layers.test(n.layers);if(s)if(e.isGroup)r=e.renderOrder;else if(e.isLOD)!0===e.autoUpdate&&e.update(n);else if(e.isLight)p.pushLight(e),e.castShadow&&p.pushShadow(e);else if(e.isSprite){if(!e.frustumCulled||N.intersectsSprite(e)){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;n.visible&&u.push(e,t,n,r,G.z,null)}}else if(e.isImmediateRenderObject)i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z),u.push(e,null,e.material,r,G.z,null);else if((e.isMesh||e.isLine||e.isPoints)&&(e.isSkinnedMesh&&e.skeleton.frame!==j.render.frame&&(e.skeleton.update(),e.skeleton.frame=j.render.frame),!e.frustumCulled||N.intersectsObject(e))){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;if(Array.isArray(n)){const i=t.groups;for(let s=0,o=i.length;s<o;s++){const o=i[s],a=n[o.materialIndex];a&&a.visible&&u.push(e,t,a,r,G.z,o)}}else n.visible&&u.push(e,t,n,r,G.z,null)}const o=e.children;for(let a=0,l=o.length;a<l;a++)t(o[a],n,r,i)}(t,e,0,f.sortObjects),u.finish(),!0===f.sortObjects&&u.sort(C,P),!0===F&&rt.beginShadows();const i=p.state.shadowsArray;mt.render(i,t,e),p.setupLights(),p.setupLightsView(e),!0===F&&rt.endShadows(),!0===this.info.autoReset&&this.info.reset(),void 0!==n&&this.setRenderTarget(n),it.render(u,t,e,r);const s=u.opaque,o=u.transparent;s.length>0&&wt(s,t,e),o.length>0&&wt(o,t,e),!0===t.isScene&&t.onAfterRender(f,t,e),null!==_&&(X.updateRenderTargetMipmap(_),X.updateMultisampleRenderTarget(_)),W.buffers.depth.setTest(!0),W.buffers.depth.setMask(!0),W.buffers.color.setMask(!0),W.setPolygonOffset(!1),m.pop(),p=m.length>0?m[m.length-1]:null,d.pop(),u=d.length>0?d[d.length-1]:null},this.setFramebuffer=function(t){x!==t&&null===_&&ht.bindFramebuffer(36160,t),x=t},this.getActiveCubeFace=function(){return v},this.getActiveMipmapLevel=function(){return y},this.getRenderTarget=function(){return _},this.setRenderTarget=function(t,e=0,n=0){_=t,v=e,y=n,t&&void 0===q.get(t).__webglFramebuffer&&X.setupRenderTarget(t);let r=x,i=!1,s=!1;if(t){const n=t.texture;(n.isDataTexture3D||n.isDataTexture2DArray)&&(s=!0);const o=q.get(t).__webglFramebuffer;t.isWebGLCubeRenderTarget?(r=o[e],i=!0):r=t.isWebGLMultisampleRenderTarget?q.get(t).__webglMultisampledFramebuffer:o,S.copy(t.viewport),T.copy(t.scissor),E=t.scissorTest}else S.copy(D).multiplyScalar(R).floor(),T.copy(I).multiplyScalar(R).floor(),E=B;if(b!==r&&(ht.bindFramebuffer(36160,r),b=r),W.viewport(S),W.scissor(T),W.setScissorTest(E),i){const r=q.get(t.texture);ht.framebufferTexture2D(36160,36064,34069+e,r.__webglTexture,n)}else if(s){const r=q.get(t.texture),i=e||0;ht.framebufferTextureLayer(36160,36064,r.__webglTexture,n||0,i)}},this.readRenderTargetPixels=function(t,e,n,r,i,s,o){if(!t||!t.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let a=q.get(t).__webglFramebuffer;if(t.isWebGLCubeRenderTarget&&void 0!==o&&(a=a[o]),a){let o=!1;a!==b&&(ht.bindFramebuffer(36160,a),o=!0);try{const a=t.texture,l=a.format,c=a.type;if(l!==Nt&&lt.convert(l)!==ht.getParameter(35739))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const h=c===Lt&&(k.has("EXT_color_buffer_half_float")||V.isWebGL2&&k.has("EXT_color_buffer_float"));if(!(c===bt||lt.convert(c)===ht.getParameter(35738)||c===At&&(V.isWebGL2||k.has("OES_texture_float")||k.has("WEBGL_color_buffer_float"))||h))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");36053===ht.checkFramebufferStatus(36160)?e>=0&&e<=t.width-r&&n>=0&&n<=t.height-i&&ht.readPixels(e,n,r,i,lt.convert(l),lt.convert(c),s):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.")}finally{o&&ht.bindFramebuffer(36160,b)}}},this.copyFramebufferToTexture=function(t,e,n=0){const r=Math.pow(2,-n),i=Math.floor(e.image.width*r),s=Math.floor(e.image.height*r),o=lt.convert(e.format);X.setTexture2D(e,0),ht.copyTexImage2D(3553,n,o,t.x,t.y,i,s,0),W.unbindTexture()},this.copyTextureToTexture=function(t,e,n,r=0){const i=e.image.width,s=e.image.height,o=lt.convert(n.format),a=lt.convert(n.type);X.setTexture2D(n,0),ht.pixelStorei(37440,n.flipY),ht.pixelStorei(37441,n.premultiplyAlpha),ht.pixelStorei(3317,n.unpackAlignment),e.isDataTexture?ht.texSubImage2D(3553,r,t.x,t.y,i,s,o,a,e.image.data):e.isCompressedTexture?ht.compressedTexSubImage2D(3553,r,t.x,t.y,e.mipmaps[0].width,e.mipmaps[0].height,o,e.mipmaps[0].data):ht.texSubImage2D(3553,r,t.x,t.y,o,a,e.image),0===r&&n.generateMipmaps&&ht.generateMipmap(3553),W.unbindTexture()},this.copyTextureToTexture3D=function(t,e,n,r,i=0){if(f.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const{width:s,height:o,data:a}=n.image,l=lt.convert(r.format),c=lt.convert(r.type);let h;if(r.isDataTexture3D)X.setTexture3D(r,0),h=32879;else{if(!r.isDataTexture2DArray)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");X.setTexture2DArray(r,0),h=35866}ht.pixelStorei(37440,r.flipY),ht.pixelStorei(37441,r.premultiplyAlpha),ht.pixelStorei(3317,r.unpackAlignment);const u=ht.getParameter(3314),p=ht.getParameter(32878),d=ht.getParameter(3316),m=ht.getParameter(3315),g=ht.getParameter(32877);ht.pixelStorei(3314,s),ht.pixelStorei(32878,o),ht.pixelStorei(3316,t.min.x),ht.pixelStorei(3315,t.min.y),ht.pixelStorei(32877,t.min.z),ht.texSubImage3D(h,i,e.x,e.y,e.z,t.max.x-t.min.x+1,t.max.y-t.min.y+1,t.max.z-t.min.z+1,l,c,a),ht.pixelStorei(3314,u),ht.pixelStorei(32878,p),ht.pixelStorei(3316,d),ht.pixelStorei(3315,m),ht.pixelStorei(32877,g),0===i&&r.generateMipmaps&&ht.generateMipmap(h),W.unbindTexture()},this.initTexture=function(t){X.setTexture2D(t,0),W.unbindTexture()},this.resetState=function(){W.reset(),ct.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}exports.Group=hh,hh.prototype.isGroup=!0,Object.assign(uh.prototype,{constructor:uh,getHandSpace:function(){return null===this._hand&&(this._hand=new hh,this._hand.matrixAutoUpdate=!1,this._hand.visible=!1,this._hand.joints={},this._hand.inputState={pinching:!1}),this._hand},getTargetRaySpace:function(){return null===this._targetRay&&(this._targetRay=new hh,this._targetRay.matrixAutoUpdate=!1,this._targetRay.visible=!1),this._targetRay},getGripSpace:function(){return null===this._grip&&(this._grip=new hh,this._grip.matrixAutoUpdate=!1,this._grip.visible=!1),this._grip},dispatchEvent:function(t){return null!==this._targetRay&&this._targetRay.dispatchEvent(t),null!==this._grip&&this._grip.dispatchEvent(t),null!==this._hand&&this._hand.dispatchEvent(t),this},disconnect:function(t){return this.dispatchEvent({type:"disconnected",data:t}),null!==this._targetRay&&(this._targetRay.visible=!1),null!==this._grip&&(this._grip.visible=!1),null!==this._hand&&(this._hand.visible=!1),this},update:function(t,e,n){let r=null,i=null,s=null;const o=this._targetRay,a=this._grip,l=this._hand;if(t&&"visible-blurred"!==e.session.visibilityState)if(l&&t.hand){s=!0;for(const s of t.hand.values()){const t=e.getJointPose(s,n);if(void 0===l.joints[s.jointName]){const t=new hh;t.matrixAutoUpdate=!1,t.visible=!1,l.joints[s.jointName]=t,l.add(t)}const r=l.joints[s.jointName];null!==t&&(r.matrix.fromArray(t.transform.matrix),r.matrix.decompose(r.position,r.rotation,r.scale),r.jointRadius=t.radius),r.visible=null!==t}const r=l.joints["index-finger-tip"],i=l.joints["thumb-tip"],o=r.position.distanceTo(i.position),a=.02,c=.005;l.inputState.pinching&&o>a+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this})):!l.inputState.pinching&&o<=a-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this}))}else null!==o&&null!==(r=e.getPose(t.targetRaySpace,n))&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale)),null!==a&&t.gripSpace&&null!==(i=e.getPose(t.gripSpace,n))&&(a.matrix.fromArray(i.transform.matrix),a.matrix.decompose(a.position,a.rotation,a.scale));return null!==o&&(o.visible=null!==r),null!==a&&(a.visible=null!==i),null!==l&&(l.visible=null!==s),this}}),Object.assign(ph.prototype,In.prototype);class gh extends fh{}exports.WebGL1Renderer=gh,gh.prototype.isWebGL1Renderer=!0;class xh{constructor(t,e){this.name="",this.color=new xi(t),this.density=void 0!==e?e:25e-5}clone(){return new xh(this.color,this.density)}toJSON(){return{type:"FogExp2",color:this.color.getHex(),density:this.density}}}exports.FogExp2=xh,xh.prototype.isFogExp2=!0;class vh{constructor(t,e,n){this.name="",this.color=new xi(t),this.near=void 0!==e?e:1,this.far=void 0!==n?n:1e3}clone(){return new vh(this.color,this.near,this.far)}toJSON(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}}}exports.Fog=vh,vh.prototype.isFog=!0;class yh extends Xr{constructor(){super(),this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.overrideMaterial=null,this.autoUpdate=!0,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){return super.copy(t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.environment&&(this.environment=t.environment.clone()),null!==t.fog&&(this.fog=t.fog.clone()),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.autoUpdate=t.autoUpdate,this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){const e=super.toJSON(t);return null!==this.background&&(e.object.background=this.background.toJSON(t)),null!==this.environment&&(e.object.environment=this.environment.toJSON(t)),null!==this.fog&&(e.object.fog=this.fog.toJSON()),e}}function _h(t,e){this.array=t,this.stride=e,this.count=void 0!==t?t.length/e:0,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0,this.uuid=Fn.generateUUID()}exports.Scene=yh,yh.prototype.isScene=!0,Object.defineProperty(_h.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(_h.prototype,{isInterleavedBuffer:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.stride,n*=e.stride;for(let r=0,i=this.stride;r<i;r++)this.array[t+r]=e.array[n+r];return this},set:function(t,e=0){return this.array.set(t,e),this},clone:function(t){void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer);const e=new _h(new this.array.constructor(t.arrayBuffers[this.array.buffer._uuid]),this.stride);return e.setUsage(this.usage),e},onUpload:function(t){return this.onUploadCallback=t,this},toJSON:function(t){return void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=Array.prototype.slice.call(new Uint32Array(this.array.buffer))),{uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride}}});const bh=new Yn;function wh(t,e,n,r){this.name="",this.data=t,this.itemSize=e,this.offset=n,this.normalized=!0===r}Object.defineProperties(wh.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}},needsUpdate:{set:function(t){this.data.needsUpdate=t}}}),Object.assign(wh.prototype,{isInterleavedBufferAttribute:!0,applyMatrix4:function(t){for(let e=0,n=this.data.count;e<n;e++)bh.x=this.getX(e),bh.y=this.getY(e),bh.z=this.getZ(e),bh.applyMatrix4(t),this.setXYZ(e,bh.x,bh.y,bh.z);return this},setX:function(t,e){return this.data.array[t*this.data.stride+this.offset]=e,this},setY:function(t,e){return this.data.array[t*this.data.stride+this.offset+1]=e,this},setZ:function(t,e){return this.data.array[t*this.data.stride+this.offset+2]=e,this},setW:function(t,e){return this.data.array[t*this.data.stride+this.offset+3]=e,this},getX:function(t){return this.data.array[t*this.data.stride+this.offset]},getY:function(t){return this.data.array[t*this.data.stride+this.offset+1]},getZ:function(t){return this.data.array[t*this.data.stride+this.offset+2]},getW:function(t){return this.data.array[t*this.data.stride+this.offset+3]},setXY:function(t,e,n){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this.data.array[t+3]=i,this},clone:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return new bi(new this.array.constructor(t),this.itemSize,this.normalized)}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.clone(t)),new wh(t.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized)},toJSON:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return{itemSize:this.itemSize,type:this.array.constructor.name,array:t,normalized:this.normalized}}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}});class Mh extends hi{constructor(t){super(),this.type="SpriteMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.rotation=0,this.sizeAttenuation=!0,this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.rotation=t.rotation,this.sizeAttenuation=t.sizeAttenuation,this}}let Sh;exports.SpriteMaterial=Mh,Mh.prototype.isSpriteMaterial=!0;const Th=new Yn,Eh=new Yn,Ah=new Yn,Lh=new On,Rh=new On,Ch=new wr,Ph=new Yn,Dh=new Yn,Ih=new Yn,Bh=new On,Nh=new On,Fh=new On;class Oh extends Xr{constructor(t){if(super(),this.type="Sprite",void 0===Sh){Sh=new ki;const t=new _h(new Float32Array([-.5,-.5,0,0,0,.5,-.5,0,1,0,.5,.5,0,1,1,-.5,.5,0,0,1]),5);Sh.setIndex([0,1,2,0,2,3]),Sh.setAttribute("position",new wh(t,3,0,!1)),Sh.setAttribute("uv",new wh(t,2,3,!1))}this.geometry=Sh,this.material=void 0!==t?t:new Mh,this.center=new On(.5,.5)}raycast(t,e){null===t.camera&&console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.'),Eh.setFromMatrixScale(this.matrixWorld),Ch.copy(t.camera.matrixWorld),this.modelViewMatrix.multiplyMatrices(t.camera.matrixWorldInverse,this.matrixWorld),Ah.setFromMatrixPosition(this.modelViewMatrix),t.camera.isPerspectiveCamera&&!1===this.material.sizeAttenuation&&Eh.multiplyScalar(-Ah.z);const n=this.material.rotation;let r,i;0!==n&&(i=Math.cos(n),r=Math.sin(n));const s=this.center;zh(Ph.set(-.5,-.5,0),Ah,s,Eh,r,i),zh(Dh.set(.5,-.5,0),Ah,s,Eh,r,i),zh(Ih.set(.5,.5,0),Ah,s,Eh,r,i),Bh.set(0,0),Nh.set(1,0),Fh.set(1,1);let o=t.ray.intersectTriangle(Ph,Dh,Ih,!1,Th);if(null===o&&(zh(Dh.set(-.5,.5,0),Ah,s,Eh,r,i),Nh.set(0,1),null===(o=t.ray.intersectTriangle(Ph,Ih,Dh,!1,Th))))return;const a=t.ray.origin.distanceTo(Th);a<t.near||a>t.far||e.push({distance:a,point:Th.clone(),uv:li.getUV(Th,Ph,Dh,Ih,Bh,Nh,Fh,new On),face:null,object:this})}copy(t){return super.copy(t),void 0!==t.center&&this.center.copy(t.center),this.material=t.material,this}}function zh(t,e,n,r,i,s){Lh.subVectors(t,n).addScalar(.5).multiply(r),void 0!==i?(Rh.x=s*Lh.x-i*Lh.y,Rh.y=i*Lh.x+s*Lh.y):Rh.copy(Lh),t.copy(e),t.x+=Rh.x,t.y+=Rh.y,t.applyMatrix4(Ch)}exports.Sprite=Oh,Oh.prototype.isSprite=!0;const Gh=new Yn,Hh=new Yn;class Uh extends Xr{constructor(){super(),this._currentLevel=0,this.type="LOD",Object.defineProperties(this,{levels:{enumerable:!0,value:[]},isLOD:{value:!0}}),this.autoUpdate=!0}copy(t){super.copy(t,!1);const e=t.levels;for(let n=0,r=e.length;n<r;n++){const t=e[n];this.addLevel(t.object.clone(),t.distance)}return this.autoUpdate=t.autoUpdate,this}addLevel(t,e=0){e=Math.abs(e);const n=this.levels;let r;for(r=0;r<n.length&&!(e<n[r].distance);r++);return n.splice(r,0,{distance:e,object:t}),this.add(t),this}getCurrentLevel(){return this._currentLevel}getObjectForDistance(t){const e=this.levels;if(e.length>0){let n,r;for(n=1,r=e.length;n<r&&!(t<e[n].distance);n++);return e[n-1].object}return null}raycast(t,e){if(this.levels.length>0){Gh.setFromMatrixPosition(this.matrixWorld);const n=t.ray.origin.distanceTo(Gh);this.getObjectForDistance(n).raycast(t,e)}}update(t){const e=this.levels;if(e.length>1){Gh.setFromMatrixPosition(t.matrixWorld),Hh.setFromMatrixPosition(this.matrixWorld);const n=Gh.distanceTo(Hh)/t.zoom;let r,i;for(e[0].object.visible=!0,r=1,i=e.length;r<i&&n>=e[r].distance;r++)e[r-1].object.visible=!1,e[r].object.visible=!0;for(this._currentLevel=r-1;r<i;r++)e[r].object.visible=!1}}toJSON(t){const e=super.toJSON(t);!1===this.autoUpdate&&(e.object.autoUpdate=!1),e.object.levels=[];const n=this.levels;for(let r=0,i=n.length;r<i;r++){const t=n[r];e.object.levels.push({object:t.object.uuid,distance:t.distance})}return e}}exports.LOD=Uh;const kh=new Yn,Vh=new Wn,Wh=new Wn,jh=new Yn,qh=new wr;function Xh(t,e){os.call(this,t,e),this.type="SkinnedMesh",this.bindMode="attached",this.bindMatrix=new wr,this.bindMatrixInverse=new wr}function Yh(){Xr.call(this),this.type="Bone"}Xh.prototype=Object.assign(Object.create(os.prototype),{constructor:Xh,isSkinnedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.bindMode=t.bindMode,this.bindMatrix.copy(t.bindMatrix),this.bindMatrixInverse.copy(t.bindMatrixInverse),this.skeleton=t.skeleton,this},bind:function(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.copy(e).invert()},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){const t=new Wn,e=this.geometry.attributes.skinWeight;for(let n=0,r=e.count;n<r;n++){t.x=e.getX(n),t.y=e.getY(n),t.z=e.getZ(n),t.w=e.getW(n);const r=1/t.manhattanLength();r!==1/0?t.multiplyScalar(r):t.set(1,0,0,0),e.setXYZW(n,t.x,t.y,t.z,t.w)}},updateMatrixWorld:function(t){os.prototype.updateMatrixWorld.call(this,t),"attached"===this.bindMode?this.bindMatrixInverse.copy(this.matrixWorld).invert():"detached"===this.bindMode?this.bindMatrixInverse.copy(this.bindMatrix).invert():console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)},boneTransform:function(t,e){const n=this.skeleton,r=this.geometry;Vh.fromBufferAttribute(r.attributes.skinIndex,t),Wh.fromBufferAttribute(r.attributes.skinWeight,t),kh.fromBufferAttribute(r.attributes.position,t).applyMatrix4(this.bindMatrix),e.set(0,0,0);for(let i=0;i<4;i++){const t=Wh.getComponent(i);if(0!==t){const r=Vh.getComponent(i);qh.multiplyMatrices(n.bones[r].matrixWorld,n.boneInverses[r]),e.addScaledVector(jh.copy(kh).applyMatrix4(qh),t)}}return e.applyMatrix4(this.bindMatrixInverse)}}),Yh.prototype=Object.assign(Object.create(Xr.prototype),{constructor:Yh,isBone:!0});const Zh=new wr,Jh=new wr;class Qh{constructor(t=[],e=[]){this.uuid=Fn.generateUUID(),this.bones=t.slice(0),this.boneInverses=e,this.boneMatrices=null,this.boneTexture=null,this.boneTextureSize=0,this.frame=-1,this.init()}init(){const t=this.bones,e=this.boneInverses;if(this.boneMatrices=new Float32Array(16*t.length),0===e.length)this.calculateInverses();else if(t.length!==e.length){console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones."),this.boneInverses=[];for(let t=0,e=this.bones.length;t<e;t++)this.boneInverses.push(new wr)}}calculateInverses(){this.boneInverses.length=0;for(let t=0,e=this.bones.length;t<e;t++){const e=new wr;this.bones[t]&&e.copy(this.bones[t].matrixWorld).invert(),this.boneInverses.push(e)}}pose(){for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&e.matrixWorld.copy(this.boneInverses[t]).invert()}for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&(e.parent&&e.parent.isBone?(e.matrix.copy(e.parent.matrixWorld).invert(),e.matrix.multiply(e.matrixWorld)):e.matrix.copy(e.matrixWorld),e.matrix.decompose(e.position,e.quaternion,e.scale))}}update(){const t=this.bones,e=this.boneInverses,n=this.boneMatrices,r=this.boneTexture;for(let i=0,s=t.length;i<s;i++){const r=t[i]?t[i].matrixWorld:Jh;Zh.multiplyMatrices(r,e[i]),Zh.toArray(n,16*i)}null!==r&&(r.needsUpdate=!0)}clone(){return new Qh(this.bones,this.boneInverses)}getBoneByName(t){for(let e=0,n=this.bones.length;e<n;e++){const n=this.bones[e];if(n.name===t)return n}}dispose(){null!==this.boneTexture&&(this.boneTexture.dispose(),this.boneTexture=null)}fromJSON(t,e){this.uuid=t.uuid;for(let n=0,r=t.bones.length;n<r;n++){const r=t.bones[n];let i=e[r];void 0===i&&(console.warn("THREE.Skeleton: No bone found with UUID:",r),i=new Yh),this.bones.push(i),this.boneInverses.push((new wr).fromArray(t.boneInverses[n]))}return this.init(),this}toJSON(){const t={metadata:{version:4.5,type:"Skeleton",generator:"Skeleton.toJSON"},bones:[],boneInverses:[]};t.uuid=this.uuid;const e=this.bones,n=this.boneInverses;for(let r=0,i=e.length;r<i;r++){const i=e[r];t.bones.push(i.uuid);const s=n[r];t.boneInverses.push(s.toArray())}return t}}exports.Skeleton=Qh;const Kh=new wr,$h=new wr,tu=[],eu=new os;function nu(t,e,n){os.call(this,t,e),this.instanceMatrix=new bi(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.frustumCulled=!1}nu.prototype=Object.assign(Object.create(os.prototype),{constructor:nu,isInstancedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.instanceMatrix.copy(t.instanceMatrix),null!==t.instanceColor&&(this.instanceColor=t.instanceColor.clone()),this.count=t.count,this},getColorAt:function(t,e){e.fromArray(this.instanceColor.array,3*t)},getMatrixAt:function(t,e){e.fromArray(this.instanceMatrix.array,16*t)},raycast:function(t,e){const n=this.matrixWorld,r=this.count;if(eu.geometry=this.geometry,eu.material=this.material,void 0!==eu.material)for(let i=0;i<r;i++){this.getMatrixAt(i,Kh),$h.multiplyMatrices(n,Kh),eu.matrixWorld=$h,eu.raycast(t,tu);for(let t=0,n=tu.length;t<n;t++){const n=tu[t];n.instanceId=i,n.object=this,e.push(n)}tu.length=0}},setColorAt:function(t,e){null===this.instanceColor&&(this.instanceColor=new bi(new Float32Array(3*this.count),3)),e.toArray(this.instanceColor.array,3*t)},setMatrixAt:function(t,e){e.toArray(this.instanceMatrix.array,16*t)},updateMorphTargets:function(){},dispose:function(){this.dispatchEvent({type:"dispose"})}});class ru extends hi{constructor(t){super(),this.type="LineBasicMaterial",this.color=new xi(16777215),this.linewidth=1,this.linecap="round",this.linejoin="round",this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this.morphTargets=t.morphTargets,this}}exports.LineBasicMaterial=ru,ru.prototype.isLineBasicMaterial=!0;const iu=new Yn,su=new Yn,ou=new wr,au=new br,lu=new dr;function cu(t=new ki,e=new ru){Xr.call(this),this.type="Line",this.geometry=t,this.material=e,this.updateMorphTargets()}cu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:cu,isLine:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[0];for(let t=1,r=e.count;t<r;t++)iu.fromBufferAttribute(e,t-1),su.fromBufferAttribute(e,t),n[t]=n[t-1],n[t]+=iu.distanceTo(su);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Line.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),lu.copy(n.boundingSphere),lu.applyMatrix4(r),lu.radius+=i,!1===t.ray.intersectsSphere(lu))return;ou.copy(r).invert(),au.copy(t.ray).applyMatrix4(ou);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s,a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=this.isLineSegments?2:1;if(n.isBufferGeometry){const r=n.index,i=n.attributes.position;if(null!==r){const n=r.array;for(let r=0,s=n.length-1;r<s;r+=u){const s=n[r],u=n[r+1];if(a.fromBufferAttribute(i,s),l.fromBufferAttribute(i,u),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const p=t.ray.origin.distanceTo(h);p<t.near||p>t.far||e.push({distance:p,point:c.clone().applyMatrix4(this.matrixWorld),index:r,face:null,faceIndex:null,object:this})}}else for(let n=0,s=i.count-1;n<s;n+=u){if(a.fromBufferAttribute(i,n),l.fromBufferAttribute(i,n+1),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const r=t.ray.origin.distanceTo(h);r<t.near||r>t.far||e.push({distance:r,point:c.clone().applyMatrix4(this.matrixWorld),index:n,face:null,faceIndex:null,object:this})}}else n.isGeometry&&console.error("THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});const hu=new Yn,uu=new Yn;function pu(t,e){cu.call(this,t,e),this.type="LineSegments"}pu.prototype=Object.assign(Object.create(cu.prototype),{constructor:pu,isLineSegments:!0,computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[];for(let t=0,r=e.count;t<r;t+=2)hu.fromBufferAttribute(e,t),uu.fromBufferAttribute(e,t+1),n[t]=0===t?0:n[t-1],n[t+1]=n[t]+hu.distanceTo(uu);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this}});class du extends cu{constructor(t,e){super(t,e),this.type="LineLoop"}}exports.LineLoop=du,du.prototype.isLineLoop=!0;class mu extends hi{constructor(t){super(),this.type="PointsMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.size=1,this.sizeAttenuation=!0,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this.morphTargets=t.morphTargets,this}}exports.PointsMaterial=mu,mu.prototype.isPointsMaterial=!0;const fu=new wr,gu=new br,xu=new dr,vu=new Yn;function yu(t=new ki,e=new mu){Xr.call(this),this.type="Points",this.geometry=t,this.material=e,this.updateMorphTargets()}function _u(t,e,n,r,i,s,o){const a=gu.distanceSqToPoint(t);if(a<n){const n=new Yn;gu.closestPointToPoint(t,n),n.applyMatrix4(r);const l=i.ray.origin.distanceTo(n);if(l<i.near||l>i.far)return;s.push({distance:l,distanceToRay:Math.sqrt(a),point:n,index:e,face:null,object:o})}}yu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:yu,isPoints:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Points.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),xu.copy(n.boundingSphere),xu.applyMatrix4(r),xu.radius+=i,!1===t.ray.intersectsSphere(xu))return;fu.copy(r).invert(),gu.copy(t.ray).applyMatrix4(fu);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s;if(n.isBufferGeometry){const i=n.index,s=n.attributes.position;if(null!==i){const n=i.array;for(let i=0,a=n.length;i<a;i++){const a=n[i];vu.fromBufferAttribute(s,a),_u(vu,a,o,r,t,e,this)}}else for(let n=0,a=s.count;n<a;n++)vu.fromBufferAttribute(s,n),_u(vu,n,o,r,t,e,this)}else console.error("THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});class bu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.format=void 0!==o?o:Bt,this.minFilter=void 0!==s?s:gt,this.magFilter=void 0!==i?i:gt,this.generateMipmaps=!1;const c=this;"requestVideoFrameCallback"in t&&t.requestVideoFrameCallback(function e(){c.needsUpdate=!0,t.requestVideoFrameCallback(e)})}clone(){return new this.constructor(this.image).copy(this)}update(){const t=this.image;!1==="requestVideoFrameCallback"in t&&t.readyState>=t.HAVE_CURRENT_DATA&&(this.needsUpdate=!0)}}exports.VideoTexture=bu,bu.prototype.isVideoTexture=!0;class wu extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={width:e,height:n},this.mipmaps=t,this.flipY=!1,this.generateMipmaps=!1}}exports.CompressedTexture=wu,wu.prototype.isCompressedTexture=!0;class Mu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.needsUpdate=!0}}exports.CanvasTexture=Mu,Mu.prototype.isCanvasTexture=!0;class Su extends kn{constructor(t,e,n,r,i,s,o,a,l,c){if((c=void 0!==c?c:Gt)!==Gt&&c!==Ht)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===Gt&&(n=St),void 0===n&&c===Ht&&(n=Dt),super(null,r,i,s,o,a,c,n,l),this.image={width:t,height:e},this.magFilter=void 0!==o?o:ut,this.minFilter=void 0!==a?a:ut,this.flipY=!1,this.generateMipmaps=!1}}exports.DepthTexture=Su,Su.prototype.isDepthTexture=!0;class Tu extends ki{constructor(t=1,e=8,n=0,r=2*Math.PI){super(),this.type="CircleGeometry",this.parameters={radius:t,segments:e,thetaStart:n,thetaLength:r},e=Math.max(3,e);const i=[],s=[],o=[],a=[],l=new Yn,c=new On;s.push(0,0,0),o.push(0,0,1),a.push(.5,.5);for(let h=0,u=3;h<=e;h++,u+=3){const i=n+h/e*r;l.x=t*Math.cos(i),l.y=t*Math.sin(i),s.push(l.x,l.y,l.z),o.push(0,0,1),c.x=(s[u]/t+1)/2,c.y=(s[u+1]/t+1)/2,a.push(c.x,c.y)}for(let h=1;h<=e;h++)i.push(h,h+1,0);this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("normal",new Ci(o,3)),this.setAttribute("uv",new Ci(a,2))}}exports.CircleGeometry=exports.CircleBufferGeometry=Tu;class Eu extends ki{constructor(t=1,e=1,n=1,r=8,i=1,s=!1,o=0,a=2*Math.PI){super(),this.type="CylinderGeometry",this.parameters={radiusTop:t,radiusBottom:e,height:n,radialSegments:r,heightSegments:i,openEnded:s,thetaStart:o,thetaLength:a};const l=this;r=Math.floor(r),i=Math.floor(i);const c=[],h=[],u=[],p=[];let d=0;const m=[],f=n/2;let g=0;function x(n){const i=d,s=new On,m=new Yn;let x=0;const v=!0===n?t:e,y=!0===n?1:-1;for(let t=1;t<=r;t++)h.push(0,f*y,0),u.push(0,y,0),p.push(.5,.5),d++;const _=d;for(let t=0;t<=r;t++){const e=t/r*a+o,n=Math.cos(e),i=Math.sin(e);m.x=v*i,m.y=f*y,m.z=v*n,h.push(m.x,m.y,m.z),u.push(0,y,0),s.x=.5*n+.5,s.y=.5*i*y+.5,p.push(s.x,s.y),d++}for(let t=0;t<r;t++){const e=i+t,r=_+t;!0===n?c.push(r,r+1,e):c.push(r+1,r,e),x+=3}l.addGroup(g,x,!0===n?1:2),g+=x}!function(){const s=new Yn,x=new Yn;let v=0;const y=(e-t)/n;for(let l=0;l<=i;l++){const c=[],g=l/i,v=g*(e-t)+t;for(let t=0;t<=r;t++){const e=t/r,i=e*a+o,l=Math.sin(i),m=Math.cos(i);x.x=v*l,x.y=-g*n+f,x.z=v*m,h.push(x.x,x.y,x.z),s.set(l,y,m).normalize(),u.push(s.x,s.y,s.z),p.push(e,1-g),c.push(d++)}m.push(c)}for(let t=0;t<r;t++)for(let e=0;e<i;e++){const n=m[e][t],r=m[e+1][t],i=m[e+1][t+1],s=m[e][t+1];c.push(n,r,s),c.push(r,i,s),v+=6}l.addGroup(g,v,0),g+=v}(),!1===s&&(t>0&&x(!0),e>0&&x(!1)),this.setIndex(c),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}}exports.CylinderGeometry=exports.CylinderBufferGeometry=Eu;class Au extends Eu{constructor(t=1,e=1,n=8,r=1,i=!1,s=0,o=2*Math.PI){super(0,t,e,n,r,i,s,o),this.type="ConeGeometry",this.parameters={radius:t,height:e,radialSegments:n,heightSegments:r,openEnded:i,thetaStart:s,thetaLength:o}}}exports.ConeGeometry=exports.ConeBufferGeometry=Au;class Lu extends ki{constructor(t,e,n=1,r=0){super(),this.type="PolyhedronGeometry",this.parameters={vertices:t,indices:e,radius:n,detail:r};const i=[],s=[];function o(t,e,n,r){const i=r+1,s=[];for(let o=0;o<=i;o++){s[o]=[];const r=t.clone().lerp(n,o/i),a=e.clone().lerp(n,o/i),l=i-o;for(let t=0;t<=l;t++)s[o][t]=0===t&&o===i?r:r.clone().lerp(a,t/l)}for(let o=0;o<i;o++)for(let t=0;t<2*(i-o)-1;t++){const e=Math.floor(t/2);t%2==0?(a(s[o][e+1]),a(s[o+1][e]),a(s[o][e])):(a(s[o][e+1]),a(s[o+1][e+1]),a(s[o+1][e]))}}function a(t){i.push(t.x,t.y,t.z)}function l(e,n){const r=3*e;n.x=t[r+0],n.y=t[r+1],n.z=t[r+2]}function c(t,e,n,r){r<0&&1===t.x&&(s[e]=t.x-1),0===n.x&&0===n.z&&(s[e]=r/2/Math.PI+.5)}function h(t){return Math.atan2(t.z,-t.x)}!function(t){const n=new Yn,r=new Yn,i=new Yn;for(let s=0;s<e.length;s+=3)l(e[s+0],n),l(e[s+1],r),l(e[s+2],i),o(n,r,i,t)}(r),function(t){const e=new Yn;for(let n=0;n<i.length;n+=3)e.x=i[n+0],e.y=i[n+1],e.z=i[n+2],e.normalize().multiplyScalar(t),i[n+0]=e.x,i[n+1]=e.y,i[n+2]=e.z}(n),function(){const t=new Yn;for(let n=0;n<i.length;n+=3){t.x=i[n+0],t.y=i[n+1],t.z=i[n+2];const r=h(t)/2/Math.PI+.5,o=(e=t,Math.atan2(-e.y,Math.sqrt(e.x*e.x+e.z*e.z))/Math.PI+.5);s.push(r,1-o)}var e;(function(){const t=new Yn,e=new Yn,n=new Yn,r=new Yn,o=new On,a=new On,l=new On;for(let u=0,p=0;u<i.length;u+=9,p+=6){t.set(i[u+0],i[u+1],i[u+2]),e.set(i[u+3],i[u+4],i[u+5]),n.set(i[u+6],i[u+7],i[u+8]),o.set(s[p+0],s[p+1]),a.set(s[p+2],s[p+3]),l.set(s[p+4],s[p+5]),r.copy(t).add(e).add(n).divideScalar(3);const d=h(r);c(o,p+0,t,d),c(a,p+2,e,d),c(l,p+4,n,d)}})(),function(){for(let t=0;t<s.length;t+=6){const e=s[t+0],n=s[t+2],r=s[t+4],i=Math.max(e,n,r),o=Math.min(e,n,r);i>.9&&o<.1&&(e<.2&&(s[t+0]+=1),n<.2&&(s[t+2]+=1),r<.2&&(s[t+4]+=1))}}()}(),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(i.slice(),3)),this.setAttribute("uv",new Ci(s,2)),0===r?this.computeVertexNormals():this.normalizeNormals()}}exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=Lu;class Ru extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2,r=1/n;super([-1,-1,-1,-1,-1,1,-1,1,-1,-1,1,1,1,-1,-1,1,-1,1,1,1,-1,1,1,1,0,-r,-n,0,-r,n,0,r,-n,0,r,n,-r,-n,0,-r,n,0,r,-n,0,r,n,0,-n,0,-r,n,0,-r,-n,0,r,n,0,r],[3,11,7,3,7,15,3,15,13,7,19,17,7,17,6,7,6,15,17,4,8,17,8,10,17,10,6,8,0,16,8,16,2,8,2,10,0,12,1,0,1,18,0,18,16,6,10,2,6,2,13,6,13,15,2,16,18,2,18,3,2,3,13,18,1,9,18,9,11,18,11,3,4,14,12,4,12,0,4,0,8,11,9,5,11,5,19,11,19,7,19,5,14,19,14,4,19,4,17,1,12,14,1,14,5,1,5,9],t,e),this.type="DodecahedronGeometry",this.parameters={radius:t,detail:e}}}exports.DodecahedronGeometry=exports.DodecahedronBufferGeometry=Ru;const Cu=new Yn,Pu=new Yn,Du=new Yn,Iu=new li;class Bu extends ki{constructor(t,e){if(super(),this.type="EdgesGeometry",this.parameters={thresholdAngle:e},e=void 0!==e?e:1,!0===t.isGeometry)return void console.error("THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const n=Math.pow(10,4),r=Math.cos(Fn.DEG2RAD*e),i=t.getIndex(),s=t.getAttribute("position"),o=i?i.count:s.count,a=[0,0,0],l=["a","b","c"],c=new Array(3),h={},u=[];for(let p=0;p<o;p+=3){i?(a[0]=i.getX(p),a[1]=i.getX(p+1),a[2]=i.getX(p+2)):(a[0]=p,a[1]=p+1,a[2]=p+2);const{a:t,b:e,c:o}=Iu;if(t.fromBufferAttribute(s,a[0]),e.fromBufferAttribute(s,a[1]),o.fromBufferAttribute(s,a[2]),Iu.getNormal(Du),c[0]=`${Math.round(t.x*n)},${Math.round(t.y*n)},${Math.round(t.z*n)}`,c[1]=`${Math.round(e.x*n)},${Math.round(e.y*n)},${Math.round(e.z*n)}`,c[2]=`${Math.round(o.x*n)},${Math.round(o.y*n)},${Math.round(o.z*n)}`,c[0]!==c[1]&&c[1]!==c[2]&&c[2]!==c[0])for(let n=0;n<3;n++){const t=(n+1)%3,e=c[n],i=c[t],s=Iu[l[n]],o=Iu[l[t]],p=`${e}_${i}`,d=`${i}_${e}`;d in h&&h[d]?(Du.dot(h[d].normal)<=r&&(u.push(s.x,s.y,s.z),u.push(o.x,o.y,o.z)),h[d]=null):p in h||(h[p]={index0:a[n],index1:a[t],normal:Du.clone()})}}for(const p in h)if(h[p]){const{index0:t,index1:e}=h[p];Cu.fromBufferAttribute(s,t),Pu.fromBufferAttribute(s,e),u.push(Cu.x,Cu.y,Cu.z),u.push(Pu.x,Pu.y,Pu.z)}this.setAttribute("position",new Ci(u,3))}}exports.EdgesGeometry=Bu;const Nu={triangulate:function(t,e,n){n=n||2;const r=e&&e.length,i=r?e[0]*n:t.length;let s=Fu(t,0,i,n,!0);const o=[];if(!s||s.next===s.prev)return o;let a,l,c,h,u,p,d;if(r&&(s=Vu(t,e,s,n)),t.length>80*n){a=c=t[0],l=h=t[1];for(let e=n;e<i;e+=n)(u=t[e])<a&&(a=u),(p=t[e+1])<l&&(l=p),u>c&&(c=u),p>h&&(h=p);d=0!==(d=Math.max(c-a,h-l))?1/d:0}return zu(s,o,n,a,l,d),o}};function Fu(t,e,n,r,i){let s,o;if(i===pp(t,e,n,r)>0)for(s=e;s<n;s+=r)o=cp(s,t[s],t[s+1],o);else for(s=n-r;s>=e;s-=r)o=cp(s,t[s],t[s+1],o);return o&&ep(o,o.next)&&(hp(o),o=o.next),o}function Ou(t,e){if(!t)return t;e||(e=t);let n,r=t;do{if(n=!1,r.steiner||!ep(r,r.next)&&0!==tp(r.prev,r,r.next))r=r.next;else{if(hp(r),(r=e=r.prev)===r.next)break;n=!0}}while(n||r!==e);return e}function 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i=t;do{null===i.z&&(i.z=Ju(i.x,i.y,e,n,r)),i.prevZ=i.prev,i.nextZ=i.next,i=i.next}while(i!==t);i.prevZ.nextZ=null,i.prevZ=null,Zu(i)}function Zu(t){let e,n,r,i,s,o,a,l,c=1;do{for(n=t,t=null,s=null,o=0;n;){for(o++,r=n,a=0,e=0;e<c&&(a++,r=r.nextZ);e++);for(l=c;a>0||l>0&&r;)0!==a&&(0===l||!r||n.z<=r.z)?(i=n,n=n.nextZ,a--):(i=r,r=r.nextZ,l--),s?s.nextZ=i:t=i,i.prevZ=s,s=i;n=r}s.nextZ=null,c*=2}while(o>1);return t}function Ju(t,e,n,r,i){return(t=1431655765&((t=858993459&((t=252645135&((t=16711935&((t=32767*(t-n)*i)|t<<8))|t<<4))|t<<2))|t<<1))|(e=1431655765&((e=858993459&((e=252645135&((e=16711935&((e=32767*(e-r)*i)|e<<8))|e<<4))|e<<2))|e<<1))<<1}function Qu(t){let e=t,n=t;do{(e.x<n.x||e.x===n.x&&e.y<n.y)&&(n=e),e=e.next}while(e!==t);return n}function Ku(t,e,n,r,i,s,o,a){return(i-o)*(e-a)-(t-o)*(s-a)>=0&&(t-o)*(r-a)-(n-o)*(e-a)>=0&&(n-o)*(s-a)-(i-o)*(r-a)>=0}function $u(t,e){return t.next.i!==e.i&&t.prev.i!==e.i&&!sp(t,e)&&(op(t,e)&&op(e,t)&&ap(t,e)&&(tp(t.prev,t,e.prev)||tp(t,e.prev,e))||ep(t,e)&&tp(t.prev,t,t.next)>0&&tp(e.prev,e,e.next)>0)}function tp(t,e,n){return(e.y-t.y)*(n.x-e.x)-(e.x-t.x)*(n.y-e.y)}function ep(t,e){return t.x===e.x&&t.y===e.y}function np(t,e,n,r){const i=ip(tp(t,e,n)),s=ip(tp(t,e,r)),o=ip(tp(n,r,t)),a=ip(tp(n,r,e));return i!==s&&o!==a||(!(0!==i||!rp(t,n,e))||(!(0!==s||!rp(t,r,e))||(!(0!==o||!rp(n,t,r))||!(0!==a||!rp(n,e,r)))))}function rp(t,e,n){return e.x<=Math.max(t.x,n.x)&&e.x>=Math.min(t.x,n.x)&&e.y<=Math.max(t.y,n.y)&&e.y>=Math.min(t.y,n.y)}function ip(t){return t>0?1:t<0?-1:0}function sp(t,e){let n=t;do{if(n.i!==t.i&&n.next.i!==t.i&&n.i!==e.i&&n.next.i!==e.i&&np(n,n.next,t,e))return!0;n=n.next}while(n!==t);return!1}function op(t,e){return tp(t.prev,t,t.next)<0?tp(t,e,t.next)>=0&&tp(t,t.prev,e)>=0:tp(t,e,t.prev)<0||tp(t,t.next,e)<0}function ap(t,e){let n=t,r=!1;const i=(t.x+e.x)/2,s=(t.y+e.y)/2;do{n.y>s!=n.next.y>s&&n.next.y!==n.y&&i<(n.next.x-n.x)*(s-n.y)/(n.next.y-n.y)+n.x&&(r=!r),n=n.next}while(n!==t);return r}function lp(t,e){const n=new up(t.i,t.x,t.y),r=new up(e.i,e.x,e.y),i=t.next,s=e.prev;return t.next=e,e.prev=t,n.next=i,i.prev=n,r.next=n,n.prev=r,s.next=r,r.prev=s,r}function cp(t,e,n,r){const i=new up(t,e,n);return r?(i.next=r.next,i.prev=r,r.next.prev=i,r.next=i):(i.prev=i,i.next=i),i}function hp(t){t.next.prev=t.prev,t.prev.next=t.next,t.prevZ&&(t.prevZ.nextZ=t.nextZ),t.nextZ&&(t.nextZ.prevZ=t.prevZ)}function up(t,e,n){this.i=t,this.x=e,this.y=n,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1}function pp(t,e,n,r){let i=0;for(let s=e,o=n-r;s<n;s+=r)i+=(t[o]-t[s])*(t[s+1]+t[o+1]),o=s;return i}const dp={area:function(t){const e=t.length;let n=0;for(let r=e-1,i=0;i<e;r=i++)n+=t[r].x*t[i].y-t[i].x*t[r].y;return.5*n},isClockWise:function(t){return dp.area(t)<0},triangulateShape:function(t,e){const n=[],r=[],i=[];mp(t),fp(n,t);let s=t.length;e.forEach(mp);for(let a=0;a<e.length;a++)r.push(s),s+=e[a].length,fp(n,e[a]);const o=Nu.triangulate(n,r);for(let a=0;a<o.length;a+=3)i.push(o.slice(a,a+3));return i}};function mp(t){const e=t.length;e>2&&t[e-1].equals(t[0])&&t.pop()}function fp(t,e){for(let n=0;n<e.length;n++)t.push(e[n].x),t.push(e[n].y)}exports.ShapeUtils=dp;class gp extends ki{constructor(t,e){super(),this.type="ExtrudeGeometry",this.parameters={shapes:t,options:e},t=Array.isArray(t)?t:[t];const n=this,r=[],i=[];for(let o=0,a=t.length;o<a;o++){s(t[o])}function s(t){const s=[],o=void 0!==e.curveSegments?e.curveSegments:12,a=void 0!==e.steps?e.steps:1;let l=void 0!==e.depth?e.depth:100,c=void 0===e.bevelEnabled||e.bevelEnabled,h=void 0!==e.bevelThickness?e.bevelThickness:6,u=void 0!==e.bevelSize?e.bevelSize:h-2,p=void 0!==e.bevelOffset?e.bevelOffset:0,d=void 0!==e.bevelSegments?e.bevelSegments:3;const m=e.extrudePath,f=void 0!==e.UVGenerator?e.UVGenerator:xp;void 0!==e.amount&&(console.warn("THREE.ExtrudeBufferGeometry: amount has been renamed to depth."),l=e.amount);let g,x,v,y,_,b=!1;m&&(g=m.getSpacedPoints(a),b=!0,c=!1,x=m.computeFrenetFrames(a,!1),v=new Yn,y=new Yn,_=new Yn),c||(d=0,h=0,u=0,p=0);const w=t.extractPoints(o);let M=w.shape;const S=w.holes;if(!dp.isClockWise(M)){M=M.reverse();for(let t=0,e=S.length;t<e;t++){const e=S[t];dp.isClockWise(e)&&(S[t]=e.reverse())}}const T=dp.triangulateShape(M,S),E=M;for(let e=0,n=S.length;e<n;e++){const t=S[e];M=M.concat(t)}function A(t,e,n){return e||console.error("THREE.ExtrudeGeometry: vec does not exist"),e.clone().multiplyScalar(n).add(t)}const L=M.length,R=T.length;function C(t,e,n){let r,i,s;const o=t.x-e.x,a=t.y-e.y,l=n.x-t.x,c=n.y-t.y,h=o*o+a*a,u=o*c-a*l;if(Math.abs(u)>Number.EPSILON){const u=Math.sqrt(h),p=Math.sqrt(l*l+c*c),d=e.x-a/u,m=e.y+o/u,f=((n.x-c/p-d)*c-(n.y+l/p-m)*l)/(o*c-a*l),g=(r=d+o*f-t.x)*r+(i=m+a*f-t.y)*i;if(g<=2)return new On(r,i);s=Math.sqrt(g/2)}else{let t=!1;o>Number.EPSILON?l>Number.EPSILON&&(t=!0):o<-Number.EPSILON?l<-Number.EPSILON&&(t=!0):Math.sign(a)===Math.sign(c)&&(t=!0),t?(r=-a,i=o,s=Math.sqrt(h)):(r=o,i=a,s=Math.sqrt(h/2))}return new On(r/s,i/s)}const P=[];for(let e=0,n=E.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),P[e]=C(E[e],E[r],E[i]);const D=[];let I,B=P.concat();for(let e=0,n=S.length;e<n;e++){const t=S[e];I=[];for(let e=0,n=t.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),I[e]=C(t[e],t[r],t[i]);D.push(I),B=B.concat(I)}for(let e=0;e<d;e++){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,-n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);O(i.x,i.y,-n)}}}const N=u+p;for(let e=0;e<L;e++){const t=c?A(M[e],B[e],N):M[e];b?(y.copy(x.normals[0]).multiplyScalar(t.x),v.copy(x.binormals[0]).multiplyScalar(t.y),_.copy(g[0]).add(y).add(v),O(_.x,_.y,_.z)):O(t.x,t.y,0)}for(let e=1;e<=a;e++)for(let t=0;t<L;t++){const n=c?A(M[t],B[t],N):M[t];b?(y.copy(x.normals[e]).multiplyScalar(n.x),v.copy(x.binormals[e]).multiplyScalar(n.y),_.copy(g[e]).add(y).add(v),O(_.x,_.y,_.z)):O(n.x,n.y,l/a*e)}for(let e=d-1;e>=0;e--){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,l+n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);b?O(i.x,i.y+g[a-1].y,g[a-1].x+n):O(i.x,i.y,l+n)}}}function F(t,e){let n=t.length;for(;--n>=0;){const r=n;let i=n-1;i<0&&(i=t.length-1);for(let t=0,n=a+2*d;t<n;t++){const n=L*t,s=L*(t+1);G(e+r+n,e+i+n,e+i+s,e+r+s)}}}function O(t,e,n){s.push(t),s.push(e),s.push(n)}function z(t,e,i){H(t),H(e),H(i);const s=r.length/3,o=f.generateTopUV(n,r,s-3,s-2,s-1);U(o[0]),U(o[1]),U(o[2])}function G(t,e,i,s){H(t),H(e),H(s),H(e),H(i),H(s);const o=r.length/3,a=f.generateSideWallUV(n,r,o-6,o-3,o-2,o-1);U(a[0]),U(a[1]),U(a[3]),U(a[1]),U(a[2]),U(a[3])}function H(t){r.push(s[3*t+0]),r.push(s[3*t+1]),r.push(s[3*t+2])}function U(t){i.push(t.x),i.push(t.y)}!function(){const t=r.length/3;if(c){let t=0,e=L*t;for(let n=0;n<R;n++){const t=T[n];z(t[2]+e,t[1]+e,t[0]+e)}e=L*(t=a+2*d);for(let n=0;n<R;n++){const t=T[n];z(t[0]+e,t[1]+e,t[2]+e)}}else{for(let t=0;t<R;t++){const e=T[t];z(e[2],e[1],e[0])}for(let t=0;t<R;t++){const e=T[t];z(e[0]+L*a,e[1]+L*a,e[2]+L*a)}}n.addGroup(t,r.length/3-t,0)}(),function(){const t=r.length/3;let e=0;F(E,e),e+=E.length;for(let n=0,r=S.length;n<r;n++){const t=S[n];F(t,e),e+=t.length}n.addGroup(t,r.length/3-t,1)}()}this.setAttribute("position",new Ci(r,3)),this.setAttribute("uv",new Ci(i,2)),this.computeVertexNormals()}toJSON(){const t=ki.prototype.toJSON.call(this);return vp(this.parameters.shapes,this.parameters.options,t)}}exports.ExtrudeGeometry=exports.ExtrudeBufferGeometry=gp;const xp={generateTopUV:function(t,e,n,r,i){const s=e[3*n],o=e[3*n+1],a=e[3*r],l=e[3*r+1],c=e[3*i],h=e[3*i+1];return[new On(s,o),new On(a,l),new On(c,h)]},generateSideWallUV:function(t,e,n,r,i,s){const o=e[3*n],a=e[3*n+1],l=e[3*n+2],c=e[3*r],h=e[3*r+1],u=e[3*r+2],p=e[3*i],d=e[3*i+1],m=e[3*i+2],f=e[3*s],g=e[3*s+1],x=e[3*s+2];return Math.abs(a-h)<.01?[new On(o,1-l),new On(c,1-u),new On(p,1-m),new On(f,1-x)]:[new On(a,1-l),new On(h,1-u),new On(d,1-m),new On(g,1-x)]}};function vp(t,e,n){if(n.shapes=[],Array.isArray(t))for(let r=0,i=t.length;r<i;r++){const e=t[r];n.shapes.push(e.uuid)}else n.shapes.push(t.uuid);return void 0!==e.extrudePath&&(n.options.extrudePath=e.extrudePath.toJSON()),n}class yp extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2;super([-1,n,0,1,n,0,-1,-n,0,1,-n,0,0,-1,n,0,1,n,0,-1,-n,0,1,-n,n,0,-1,n,0,1,-n,0,-1,-n,0,1],[0,11,5,0,5,1,0,1,7,0,7,10,0,10,11,1,5,9,5,11,4,11,10,2,10,7,6,7,1,8,3,9,4,3,4,2,3,2,6,3,6,8,3,8,9,4,9,5,2,4,11,6,2,10,8,6,7,9,8,1],t,e),this.type="IcosahedronGeometry",this.parameters={radius:t,detail:e}}}exports.IcosahedronGeometry=exports.IcosahedronBufferGeometry=yp;class _p extends ki{constructor(t,e=12,n=0,r=2*Math.PI){super(),this.type="LatheGeometry",this.parameters={points:t,segments:e,phiStart:n,phiLength:r},e=Math.floor(e),r=Fn.clamp(r,0,2*Math.PI);const i=[],s=[],o=[],a=1/e,l=new Yn,c=new On;for(let h=0;h<=e;h++){const i=n+h*a*r,u=Math.sin(i),p=Math.cos(i);for(let n=0;n<=t.length-1;n++)l.x=t[n].x*u,l.y=t[n].y,l.z=t[n].x*p,s.push(l.x,l.y,l.z),c.x=h/e,c.y=n/(t.length-1),o.push(c.x,c.y)}for(let h=0;h<e;h++)for(let e=0;e<t.length-1;e++){const n=e+h*t.length,r=n,s=n+t.length,o=n+t.length+1,a=n+1;i.push(r,s,a),i.push(s,o,a)}if(this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2)),this.computeVertexNormals(),r===2*Math.PI){const n=this.attributes.normal.array,r=new Yn,i=new Yn,s=new Yn,o=e*t.length*3;for(let e=0,a=0;e<t.length;e++,a+=3)r.x=n[a+0],r.y=n[a+1],r.z=n[a+2],i.x=n[o+a+0],i.y=n[o+a+1],i.z=n[o+a+2],s.addVectors(r,i).normalize(),n[a+0]=n[o+a+0]=s.x,n[a+1]=n[o+a+1]=s.y,n[a+2]=n[o+a+2]=s.z}}}exports.LatheGeometry=exports.LatheBufferGeometry=_p;class bp extends Lu{constructor(t=1,e=0){super([1,0,0,-1,0,0,0,1,0,0,-1,0,0,0,1,0,0,-1],[0,2,4,0,4,3,0,3,5,0,5,2,1,2,5,1,5,3,1,3,4,1,4,2],t,e),this.type="OctahedronGeometry",this.parameters={radius:t,detail:e}}}function wp(t,e,n){ki.call(this),this.type="ParametricGeometry",this.parameters={func:t,slices:e,stacks:n};const r=[],i=[],s=[],o=[],a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=new Yn;t.length<3&&console.error("THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.");const p=e+1;for(let d=0;d<=n;d++){const r=d/n;for(let n=0;n<=e;n++){const p=n/e;t(p,r,l),i.push(l.x,l.y,l.z),p-1e-5>=0?(t(p-1e-5,r,c),h.subVectors(l,c)):(t(p+1e-5,r,c),h.subVectors(c,l)),r-1e-5>=0?(t(p,r-1e-5,c),u.subVectors(l,c)):(t(p,r+1e-5,c),u.subVectors(c,l)),a.crossVectors(h,u).normalize(),s.push(a.x,a.y,a.z),o.push(p,r)}}for(let d=0;d<n;d++)for(let t=0;t<e;t++){const e=d*p+t,n=d*p+t+1,i=(d+1)*p+t+1,s=(d+1)*p+t;r.push(e,n,s),r.push(n,i,s)}this.setIndex(r),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2))}exports.OctahedronGeometry=exports.OctahedronBufferGeometry=bp,wp.prototype=Object.create(ki.prototype),wp.prototype.constructor=wp;class Mp extends ki{constructor(t=.5,e=1,n=8,r=1,i=0,s=2*Math.PI){super(),this.type="RingGeometry",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:n,phiSegments:r,thetaStart:i,thetaLength:s},n=Math.max(3,n);const o=[],a=[],l=[],c=[];let h=t;const u=(e-t)/(r=Math.max(1,r)),p=new Yn,d=new On;for(let m=0;m<=r;m++){for(let t=0;t<=n;t++){const r=i+t/n*s;p.x=h*Math.cos(r),p.y=h*Math.sin(r),a.push(p.x,p.y,p.z),l.push(0,0,1),d.x=(p.x/e+1)/2,d.y=(p.y/e+1)/2,c.push(d.x,d.y)}h+=u}for(let m=0;m<r;m++){const t=m*(n+1);for(let e=0;e<n;e++){const r=e+t,i=r,s=r+n+1,a=r+n+2,l=r+1;o.push(i,s,l),o.push(s,a,l)}}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.RingGeometry=exports.RingBufferGeometry=Mp;class Sp extends ki{constructor(t,e=12){super(),this.type="ShapeGeometry",this.parameters={shapes:t,curveSegments:e};const n=[],r=[],i=[],s=[];let o=0,a=0;if(!1===Array.isArray(t))l(t);else for(let c=0;c<t.length;c++)l(t[c]),this.addGroup(o,a,c),o+=a,a=0;function l(t){const o=r.length/3,l=t.extractPoints(e);let c=l.shape;const h=l.holes;!1===dp.isClockWise(c)&&(c=c.reverse());for(let e=0,n=h.length;e<n;e++){const t=h[e];!0===dp.isClockWise(t)&&(h[e]=t.reverse())}const u=dp.triangulateShape(c,h);for(let e=0,n=h.length;e<n;e++){const t=h[e];c=c.concat(t)}for(let e=0,n=c.length;e<n;e++){const t=c[e];r.push(t.x,t.y,0),i.push(0,0,1),s.push(t.x,t.y)}for(let e=0,r=u.length;e<r;e++){const t=u[e],r=t[0]+o,i=t[1]+o,s=t[2]+o;n.push(r,i,s),a+=3}}this.setIndex(n),this.setAttribute("position",new Ci(r,3)),this.setAttribute("normal",new Ci(i,3)),this.setAttribute("uv",new Ci(s,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return Tp(this.parameters.shapes,t)}}function Tp(t,e){if(e.shapes=[],Array.isArray(t))for(let n=0,r=t.length;n<r;n++){const r=t[n];e.shapes.push(r.uuid)}else e.shapes.push(t.uuid);return e}exports.ShapeGeometry=exports.ShapeBufferGeometry=Sp;class Ep extends ki{constructor(t=1,e=8,n=6,r=0,i=2*Math.PI,s=0,o=Math.PI){super(),this.type="SphereGeometry",this.parameters={radius:t,widthSegments:e,heightSegments:n,phiStart:r,phiLength:i,thetaStart:s,thetaLength:o},e=Math.max(3,Math.floor(e)),n=Math.max(2,Math.floor(n));const a=Math.min(s+o,Math.PI);let l=0;const c=[],h=new Yn,u=new Yn,p=[],d=[],m=[],f=[];for(let g=0;g<=n;g++){const p=[],x=g/n;let v=0;0==g&&0==s?v=.5/e:g==n&&a==Math.PI&&(v=-.5/e);for(let n=0;n<=e;n++){const a=n/e;h.x=-t*Math.cos(r+a*i)*Math.sin(s+x*o),h.y=t*Math.cos(s+x*o),h.z=t*Math.sin(r+a*i)*Math.sin(s+x*o),d.push(h.x,h.y,h.z),u.copy(h).normalize(),m.push(u.x,u.y,u.z),f.push(a+v,1-x),p.push(l++)}c.push(p)}for(let g=0;g<n;g++)for(let t=0;t<e;t++){const e=c[g][t+1],r=c[g][t],i=c[g+1][t],o=c[g+1][t+1];(0!==g||s>0)&&p.push(e,r,o),(g!==n-1||a<Math.PI)&&p.push(r,i,o)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.SphereGeometry=exports.SphereBufferGeometry=Ep;class Ap extends Lu{constructor(t=1,e=0){super([1,1,1,-1,-1,1,-1,1,-1,1,-1,-1],[2,1,0,0,3,2,1,3,0,2,3,1],t,e),this.type="TetrahedronGeometry",this.parameters={radius:t,detail:e}}}exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=Ap;class Lp extends gp{constructor(t,e={}){const n=e.font;if(!n||!n.isFont)return console.error("THREE.TextGeometry: font parameter is not an instance of THREE.Font."),new ki;const r=n.generateShapes(t,e.size);e.depth=void 0!==e.height?e.height:50,void 0===e.bevelThickness&&(e.bevelThickness=10),void 0===e.bevelSize&&(e.bevelSize=8),void 0===e.bevelEnabled&&(e.bevelEnabled=!1),super(r,e),this.type="TextGeometry"}}exports.TextGeometry=exports.TextBufferGeometry=Lp;class Rp extends ki{constructor(t=1,e=.4,n=8,r=6,i=2*Math.PI){super(),this.type="TorusGeometry",this.parameters={radius:t,tube:e,radialSegments:n,tubularSegments:r,arc:i},n=Math.floor(n),r=Math.floor(r);const s=[],o=[],a=[],l=[],c=new Yn,h=new Yn,u=new Yn;for(let p=0;p<=n;p++)for(let s=0;s<=r;s++){const d=s/r*i,m=p/n*Math.PI*2;h.x=(t+e*Math.cos(m))*Math.cos(d),h.y=(t+e*Math.cos(m))*Math.sin(d),h.z=e*Math.sin(m),o.push(h.x,h.y,h.z),c.x=t*Math.cos(d),c.y=t*Math.sin(d),u.subVectors(h,c).normalize(),a.push(u.x,u.y,u.z),l.push(s/r),l.push(p/n)}for(let p=1;p<=n;p++)for(let t=1;t<=r;t++){const e=(r+1)*p+t-1,n=(r+1)*(p-1)+t-1,i=(r+1)*(p-1)+t,o=(r+1)*p+t;s.push(e,n,o),s.push(n,i,o)}this.setIndex(s),this.setAttribute("position",new Ci(o,3)),this.setAttribute("normal",new Ci(a,3)),this.setAttribute("uv",new Ci(l,2))}}exports.TorusGeometry=exports.TorusBufferGeometry=Rp;class Cp extends ki{constructor(t=1,e=.4,n=64,r=8,i=2,s=3){super(),this.type="TorusKnotGeometry",this.parameters={radius:t,tube:e,tubularSegments:n,radialSegments:r,p:i,q:s},n=Math.floor(n),r=Math.floor(r);const o=[],a=[],l=[],c=[],h=new Yn,u=new Yn,p=new Yn,d=new Yn,m=new Yn,f=new Yn,g=new Yn;for(let v=0;v<=n;++v){const o=v/n*i*Math.PI*2;x(o,i,s,t,p),x(o+.01,i,s,t,d),f.subVectors(d,p),g.addVectors(d,p),m.crossVectors(f,g),g.crossVectors(m,f),m.normalize(),g.normalize();for(let t=0;t<=r;++t){const i=t/r*Math.PI*2,s=-e*Math.cos(i),o=e*Math.sin(i);h.x=p.x+(s*g.x+o*m.x),h.y=p.y+(s*g.y+o*m.y),h.z=p.z+(s*g.z+o*m.z),a.push(h.x,h.y,h.z),u.subVectors(h,p).normalize(),l.push(u.x,u.y,u.z),c.push(v/n),c.push(t/r)}}for(let v=1;v<=n;v++)for(let t=1;t<=r;t++){const e=(r+1)*(v-1)+(t-1),n=(r+1)*v+(t-1),i=(r+1)*v+t,s=(r+1)*(v-1)+t;o.push(e,n,s),o.push(n,i,s)}function x(t,e,n,r,i){const s=Math.cos(t),o=Math.sin(t),a=n/e*t,l=Math.cos(a);i.x=r*(2+l)*.5*s,i.y=r*(2+l)*o*.5,i.z=r*Math.sin(a)*.5}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=Cp;class Pp extends ki{constructor(t,e=64,n=1,r=8,i=!1){super(),this.type="TubeGeometry",this.parameters={path:t,tubularSegments:e,radius:n,radialSegments:r,closed:i};const s=t.computeFrenetFrames(e,i);this.tangents=s.tangents,this.normals=s.normals,this.binormals=s.binormals;const o=new Yn,a=new Yn,l=new On;let c=new Yn;const h=[],u=[],p=[],d=[];function m(i){c=t.getPointAt(i/e,c);const l=s.normals[i],p=s.binormals[i];for(let t=0;t<=r;t++){const e=t/r*Math.PI*2,i=Math.sin(e),s=-Math.cos(e);a.x=s*l.x+i*p.x,a.y=s*l.y+i*p.y,a.z=s*l.z+i*p.z,a.normalize(),u.push(a.x,a.y,a.z),o.x=c.x+n*a.x,o.y=c.y+n*a.y,o.z=c.z+n*a.z,h.push(o.x,o.y,o.z)}}!function(){for(let t=0;t<e;t++)m(t);m(!1===i?e:0),function(){for(let t=0;t<=e;t++)for(let n=0;n<=r;n++)l.x=t/e,l.y=n/r,p.push(l.x,l.y)}(),function(){for(let t=1;t<=e;t++)for(let e=1;e<=r;e++){const n=(r+1)*(t-1)+(e-1),i=(r+1)*t+(e-1),s=(r+1)*t+e,o=(r+1)*(t-1)+e;d.push(n,i,o),d.push(i,s,o)}}()}(),this.setIndex(d),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return t.path=this.parameters.path.toJSON(),t}}exports.TubeGeometry=exports.TubeBufferGeometry=Pp;class Dp extends ki{constructor(t){if(super(),this.type="WireframeGeometry",!0===t.isGeometry)return void console.error("THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const e=[],n=[0,0],r={},i=new Yn;if(null!==t.index){const s=t.attributes.position,o=t.index;let a=t.groups;0===a.length&&(a=[{start:0,count:o.count,materialIndex:0}]);for(let t=0,e=a.length;t<e;++t){const e=a[t],i=e.start;for(let t=i,s=i+e.count;t<s;t+=3)for(let e=0;e<3;e++){const i=o.getX(t+e),s=o.getX(t+(e+1)%3);n[0]=Math.min(i,s),n[1]=Math.max(i,s);const a=n[0]+","+n[1];void 0===r[a]&&(r[a]={index1:n[0],index2:n[1]})}}for(const t in r){const n=r[t];i.fromBufferAttribute(s,n.index1),e.push(i.x,i.y,i.z),i.fromBufferAttribute(s,n.index2),e.push(i.x,i.y,i.z)}}else{const n=t.attributes.position;for(let t=0,r=n.count/3;t<r;t++)for(let s=0;s<3;s++){const r=3*t+s;i.fromBufferAttribute(n,r),e.push(i.x,i.y,i.z);const o=3*t+(s+1)%3;i.fromBufferAttribute(n,o),e.push(i.x,i.y,i.z)}}this.setAttribute("position",new Ci(e,3))}}exports.WireframeGeometry=Dp;var Ip=Object.freeze({__proto__:null,BoxGeometry:cs,BoxBufferGeometry:cs,CircleGeometry:Tu,CircleBufferGeometry:Tu,ConeGeometry:Au,ConeBufferGeometry:Au,CylinderGeometry:Eu,CylinderBufferGeometry:Eu,DodecahedronGeometry:Ru,DodecahedronBufferGeometry:Ru,EdgesGeometry:Bu,ExtrudeGeometry:gp,ExtrudeBufferGeometry:gp,IcosahedronGeometry:yp,IcosahedronBufferGeometry:yp,LatheGeometry:_p,LatheBufferGeometry:_p,OctahedronGeometry:bp,OctahedronBufferGeometry:bp,ParametricGeometry:wp,ParametricBufferGeometry:wp,PlaneGeometry:Rs,PlaneBufferGeometry:Rs,PolyhedronGeometry:Lu,PolyhedronBufferGeometry:Lu,RingGeometry:Mp,RingBufferGeometry:Mp,ShapeGeometry:Sp,ShapeBufferGeometry:Sp,SphereGeometry:Ep,SphereBufferGeometry:Ep,TetrahedronGeometry:Ap,TetrahedronBufferGeometry:Ap,TextGeometry:Lp,TextBufferGeometry:Lp,TorusGeometry:Rp,TorusBufferGeometry:Rp,TorusKnotGeometry:Cp,TorusKnotBufferGeometry:Cp,TubeGeometry:Pp,TubeBufferGeometry:Pp,WireframeGeometry:Dp});class Bp extends hi{constructor(t){super(),this.type="ShadowMaterial",this.color=new xi(0),this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this}}exports.ShadowMaterial=Bp,Bp.prototype.isShadowMaterial=!0;class Np extends fs{constructor(t){super(t),this.type="RawShaderMaterial"}}function Fp(t){hi.call(this),this.defines={STANDARD:""},this.type="MeshStandardMaterial",this.color=new xi(16777215),this.roughness=1,this.metalness=0,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapIntensity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.vertexTangents=!1,this.setValues(t)}function Op(t){Fp.call(this),this.defines={STANDARD:"",PHYSICAL:""},this.type="MeshPhysicalMaterial",this.clearcoat=0,this.clearcoatMap=null,this.clearcoatRoughness=0,this.clearcoatRoughnessMap=null,this.clearcoatNormalScale=new On(1,1),this.clearcoatNormalMap=null,this.reflectivity=.5,Object.defineProperty(this,"ior",{get:function(){return(1+.4*this.reflectivity)/(1-.4*this.reflectivity)},set:function(t){this.reflectivity=Fn.clamp(2.5*(t-1)/(t+1),0,1)}}),this.sheen=null,this.transmission=0,this.transmissionMap=null,this.setValues(t)}exports.RawShaderMaterial=Np,Np.prototype.isRawShaderMaterial=!0,Fp.prototype=Object.create(hi.prototype),Fp.prototype.constructor=Fp,Fp.prototype.isMeshStandardMaterial=!0,Fp.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.defines={STANDARD:""},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapIntensity=t.envMapIntensity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this.vertexTangents=t.vertexTangents,this},Op.prototype=Object.create(Fp.prototype),Op.prototype.constructor=Op,Op.prototype.isMeshPhysicalMaterial=!0,Op.prototype.copy=function(t){return Fp.prototype.copy.call(this,t),this.defines={STANDARD:"",PHYSICAL:""},this.clearcoat=t.clearcoat,this.clearcoatMap=t.clearcoatMap,this.clearcoatRoughness=t.clearcoatRoughness,this.clearcoatRoughnessMap=t.clearcoatRoughnessMap,this.clearcoatNormalMap=t.clearcoatNormalMap,this.clearcoatNormalScale.copy(t.clearcoatNormalScale),this.reflectivity=t.reflectivity,t.sheen?this.sheen=(this.sheen||new xi).copy(t.sheen):this.sheen=null,this.transmission=t.transmission,this.transmissionMap=t.transmissionMap,this};class zp extends hi{constructor(t){super(),this.type="MeshPhongMaterial",this.color=new xi(16777215),this.specular=new xi(1118481),this.shininess=30,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.specular.copy(t.specular),this.shininess=t.shininess,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshPhongMaterial=zp,zp.prototype.isMeshPhongMaterial=!0;class Gp extends hi{constructor(t){super(),this.defines={TOON:""},this.type="MeshToonMaterial",this.color=new xi(16777215),this.map=null,this.gradientMap=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.gradientMap=t.gradientMap,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshToonMaterial=Gp,Gp.prototype.isMeshToonMaterial=!0;class Hp extends hi{constructor(t){super(),this.type="MeshNormalMaterial",this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshNormalMaterial=Hp,Hp.prototype.isMeshNormalMaterial=!0;class Up extends hi{constructor(t){super(),this.type="MeshLambertMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshLambertMaterial=Up,Up.prototype.isMeshLambertMaterial=!0;class kp extends hi{constructor(t){super(),this.defines={MATCAP:""},this.type="MeshMatcapMaterial",this.color=new xi(16777215),this.matcap=null,this.map=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.defines={MATCAP:""},this.color.copy(t.color),this.matcap=t.matcap,this.map=t.map,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshMatcapMaterial=kp,kp.prototype.isMeshMatcapMaterial=!0;class Vp extends ru{constructor(t){super(),this.type="LineDashedMaterial",this.scale=1,this.dashSize=3,this.gapSize=1,this.setValues(t)}copy(t){return super.copy(t),this.scale=t.scale,this.dashSize=t.dashSize,this.gapSize=t.gapSize,this}}exports.LineDashedMaterial=Vp,Vp.prototype.isLineDashedMaterial=!0;var Wp=Object.freeze({__proto__:null,ShadowMaterial:Bp,SpriteMaterial:Mh,RawShaderMaterial:Np,ShaderMaterial:fs,PointsMaterial:mu,MeshPhysicalMaterial:Op,MeshStandardMaterial:Fp,MeshPhongMaterial:zp,MeshToonMaterial:Gp,MeshNormalMaterial:Hp,MeshLambertMaterial:Up,MeshDepthMaterial:eh,MeshDistanceMaterial:nh,MeshBasicMaterial:vi,MeshMatcapMaterial:kp,LineDashedMaterial:Vp,LineBasicMaterial:ru,Material:hi});const jp={arraySlice:function(t,e,n){return jp.isTypedArray(t)?new t.constructor(t.subarray(e,void 0!==n?n:t.length)):t.slice(e,n)},convertArray:function(t,e,n){return!t||!n&&t.constructor===e?t:"number"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)},isTypedArray:function(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)},getKeyframeOrder:function(t){const e=t.length,n=new Array(e);for(let r=0;r!==e;++r)n[r]=r;return n.sort(function(e,n){return t[e]-t[n]}),n},sortedArray:function(t,e,n){const r=t.length,i=new t.constructor(r);for(let s=0,o=0;o!==r;++s){const r=n[s]*e;for(let n=0;n!==e;++n)i[o++]=t[r+n]}return i},flattenJSON:function(t,e,n,r){let i=1,s=t[0];for(;void 0!==s&&void 0===s[r];)s=t[i++];if(void 0===s)return;let o=s[r];if(void 0!==o)if(Array.isArray(o))do{void 0!==(o=s[r])&&(e.push(s.time),n.push.apply(n,o)),s=t[i++]}while(void 0!==s);else if(void 0!==o.toArray)do{void 0!==(o=s[r])&&(e.push(s.time),o.toArray(n,n.length)),s=t[i++]}while(void 0!==s);else do{void 0!==(o=s[r])&&(e.push(s.time),n.push(o)),s=t[i++]}while(void 0!==s)},subclip:function(t,e,n,r,i=30){const s=t.clone();s.name=e;const o=[];for(let l=0;l<s.tracks.length;++l){const t=s.tracks[l],e=t.getValueSize(),a=[],c=[];for(let s=0;s<t.times.length;++s){const o=t.times[s]*i;if(!(o<n||o>=r)){a.push(t.times[s]);for(let n=0;n<e;++n)c.push(t.values[s*e+n])}}0!==a.length&&(t.times=jp.convertArray(a,t.times.constructor),t.values=jp.convertArray(c,t.values.constructor),o.push(t))}s.tracks=o;let a=1/0;for(let l=0;l<s.tracks.length;++l)a>s.tracks[l].times[0]&&(a=s.tracks[l].times[0]);for(let l=0;l<s.tracks.length;++l)s.tracks[l].shift(-1*a);return s.resetDuration(),s},makeClipAdditive:function(t,e=0,n=t,r=30){r<=0&&(r=30);const i=n.tracks.length,s=e/r;for(let o=0;o<i;++o){const e=n.tracks[o],r=e.ValueTypeName;if("bool"===r||"string"===r)continue;const i=t.tracks.find(function(t){return t.name===e.name&&t.ValueTypeName===r});if(void 0===i)continue;let a=0;const l=e.getValueSize();e.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(a=l/3);let c=0;const h=i.getValueSize();i.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(c=h/3);const u=e.times.length-1;let p;if(s<=e.times[0]){const t=a,n=l-a;p=jp.arraySlice(e.values,t,n)}else if(s>=e.times[u]){const t=u*l+a,n=t+l-a;p=jp.arraySlice(e.values,t,n)}else{const t=e.createInterpolant(),n=a,r=l-a;t.evaluate(s),p=jp.arraySlice(t.resultBuffer,n,r)}if("quaternion"===r){(new Xn).fromArray(p).normalize().conjugate().toArray(p)}const d=i.times.length;for(let t=0;t<d;++t){const e=t*h+c;if("quaternion"===r)Xn.multiplyQuaternionsFlat(i.values,e,p,0,i.values,e);else{const t=h-2*c;for(let n=0;n<t;++n)i.values[e+n]-=p[n]}}}return t.blendMode=Ve,t}};function qp(t,e,n,r){this.parameterPositions=t,this._cachedIndex=0,this.resultBuffer=void 0!==r?r:new e.constructor(n),this.sampleValues=e,this.valueSize=n}function Xp(t,e,n,r){qp.call(this,t,e,n,r),this._weightPrev=-0,this._offsetPrev=-0,this._weightNext=-0,this._offsetNext=-0}function Yp(t,e,n,r){qp.call(this,t,e,n,r)}function Zp(t,e,n,r){qp.call(this,t,e,n,r)}exports.AnimationUtils=jp,Object.assign(qp.prototype,{evaluate:function(t){const e=this.parameterPositions;let n=this._cachedIndex,r=e[n],i=e[n-1];t:{e:{let s;n:{r:if(!(t<r)){for(let s=n+2;;){if(void 0===r){if(t<i)break r;return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,t,i)}if(n===s)break;if(i=r,t<(r=e[++n]))break e}s=e.length;break n}if(t>=i)break t;{const o=e[1];t<o&&(n=2,i=o);for(let s=n-2;;){if(void 0===i)return this._cachedIndex=0,this.beforeStart_(0,t,r);if(n===s)break;if(r=i,t>=(i=e[--n-1]))break e}s=n,n=0}}for(;n<s;){const r=n+s>>>1;t<e[r]?s=r:n=r+1}if(r=e[n],void 0===(i=e[n-1]))return this._cachedIndex=0,this.beforeStart_(0,t,r);if(void 0===r)return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,i,t)}this._cachedIndex=n,this.intervalChanged_(n,i,r)}return this.interpolate_(n,i,t,r)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||this.DefaultSettings_},copySampleValue_:function(t){const e=this.resultBuffer,n=this.sampleValues,r=this.valueSize,i=t*r;for(let s=0;s!==r;++s)e[s]=n[i+s];return e},interpolate_:function(){throw new Error("call to abstract method")},intervalChanged_:function(){}}),Object.assign(qp.prototype,{beforeStart_:qp.prototype.copySampleValue_,afterEnd_:qp.prototype.copySampleValue_}),Xp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Xp,DefaultSettings_:{endingStart:Ge,endingEnd:Ge},intervalChanged_:function(t,e,n){const r=this.parameterPositions;let i=t-2,s=t+1,o=r[i],a=r[s];if(void 0===o)switch(this.getSettings_().endingStart){case He:i=t,o=2*e-n;break;case Ue:o=e+r[i=r.length-2]-r[i+1];break;default:i=t,o=n}if(void 0===a)switch(this.getSettings_().endingEnd){case He:s=t,a=2*n-e;break;case Ue:s=1,a=n+r[1]-r[0];break;default:s=t-1,a=e}const l=.5*(n-e),c=this.valueSize;this._weightPrev=l/(e-o),this._weightNext=l/(a-n),this._offsetPrev=i*c,this._offsetNext=s*c},interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=this._offsetPrev,h=this._offsetNext,u=this._weightPrev,p=this._weightNext,d=(n-e)/(r-e),m=d*d,f=m*d,g=-u*f+2*u*m-u*d,x=(1+u)*f+(-1.5-2*u)*m+(-.5+u)*d+1,v=(-1-p)*f+(1.5+p)*m+.5*d,y=p*f-p*m;for(let _=0;_!==o;++_)i[_]=g*s[c+_]+x*s[l+_]+v*s[a+_]+y*s[h+_];return i}}),Yp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Yp,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=(n-e)/(r-e),h=1-c;for(let u=0;u!==o;++u)i[u]=s[l+u]*h+s[a+u]*c;return i}}),Zp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Zp,interpolate_:function(t){return this.copySampleValue_(t-1)}});class Jp{constructor(t,e,n,r){if(void 0===t)throw new Error("THREE.KeyframeTrack: track name is undefined");if(void 0===e||0===e.length)throw new Error("THREE.KeyframeTrack: no keyframes in track named "+t);this.name=t,this.times=jp.convertArray(e,this.TimeBufferType),this.values=jp.convertArray(n,this.ValueBufferType),this.setInterpolation(r||this.DefaultInterpolation)}static toJSON(t){const e=t.constructor;let n;if(e.toJSON!==this.toJSON)n=e.toJSON(t);else{n={name:t.name,times:jp.convertArray(t.times,Array),values:jp.convertArray(t.values,Array)};const e=t.getInterpolation();e!==t.DefaultInterpolation&&(n.interpolation=e)}return n.type=t.ValueTypeName,n}InterpolantFactoryMethodDiscrete(t){return new Zp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodLinear(t){return new Yp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodSmooth(t){return new Xp(this.times,this.values,this.getValueSize(),t)}setInterpolation(t){let e;switch(t){case Fe:e=this.InterpolantFactoryMethodDiscrete;break;case Oe:e=this.InterpolantFactoryMethodLinear;break;case ze:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){const e="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(e);this.setInterpolation(this.DefaultInterpolation)}return console.warn("THREE.KeyframeTrack:",e),this}return this.createInterpolant=e,this}getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return Fe;case this.InterpolantFactoryMethodLinear:return Oe;case this.InterpolantFactoryMethodSmooth:return ze}}getValueSize(){return this.values.length/this.times.length}shift(t){if(0!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]+=t}return this}scale(t){if(1!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]*=t}return this}trim(t,e){const n=this.times,r=n.length;let i=0,s=r-1;for(;i!==r&&n[i]<t;)++i;for(;-1!==s&&n[s]>e;)--s;if(++s,0!==i||s!==r){i>=s&&(i=(s=Math.max(s,1))-1);const t=this.getValueSize();this.times=jp.arraySlice(n,i,s),this.values=jp.arraySlice(this.values,i*t,s*t)}return this}validate(){let t=!0;const e=this.getValueSize();e-Math.floor(e)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),t=!1);const n=this.times,r=this.values,i=n.length;0===i&&(console.error("THREE.KeyframeTrack: Track is empty.",this),t=!1);let s=null;for(let o=0;o!==i;o++){const e=n[o];if("number"==typeof e&&isNaN(e)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,o,e),t=!1;break}if(null!==s&&s>e){console.error("THREE.KeyframeTrack: Out of order keys.",this,o,e,s),t=!1;break}s=e}if(void 0!==r&&jp.isTypedArray(r))for(let o=0,a=r.length;o!==a;++o){const e=r[o];if(isNaN(e)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,o,e),t=!1;break}}return t}optimize(){const t=jp.arraySlice(this.times),e=jp.arraySlice(this.values),n=this.getValueSize(),r=this.getInterpolation()===ze,i=t.length-1;let s=1;for(let o=1;o<i;++o){let i=!1;const a=t[o];if(a!==t[o+1]&&(1!==o||a!==t[0]))if(r)i=!0;else{const t=o*n,r=t-n,s=t+n;for(let o=0;o!==n;++o){const n=e[t+o];if(n!==e[r+o]||n!==e[s+o]){i=!0;break}}}if(i){if(o!==s){t[s]=t[o];const r=o*n,i=s*n;for(let t=0;t!==n;++t)e[i+t]=e[r+t]}++s}}if(i>0){t[s]=t[i];for(let t=i*n,r=s*n,o=0;o!==n;++o)e[r+o]=e[t+o];++s}return s!==t.length?(this.times=jp.arraySlice(t,0,s),this.values=jp.arraySlice(e,0,s*n)):(this.times=t,this.values=e),this}clone(){const t=jp.arraySlice(this.times,0),e=jp.arraySlice(this.values,0),n=new(0,this.constructor)(this.name,t,e);return n.createInterpolant=this.createInterpolant,n}}exports.KeyframeTrack=Jp,Jp.prototype.TimeBufferType=Float32Array,Jp.prototype.ValueBufferType=Float32Array,Jp.prototype.DefaultInterpolation=Oe;class Qp extends Jp{}exports.BooleanKeyframeTrack=Qp,Qp.prototype.ValueTypeName="bool",Qp.prototype.ValueBufferType=Array,Qp.prototype.DefaultInterpolation=Fe,Qp.prototype.InterpolantFactoryMethodLinear=void 0,Qp.prototype.InterpolantFactoryMethodSmooth=void 0;class Kp extends Jp{}exports.ColorKeyframeTrack=Kp,Kp.prototype.ValueTypeName="color";class $p extends Jp{}function td(t,e,n,r){qp.call(this,t,e,n,r)}exports.NumberKeyframeTrack=$p,$p.prototype.ValueTypeName="number",td.prototype=Object.assign(Object.create(qp.prototype),{constructor:td,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=(n-e)/(r-e);let l=t*o;for(let c=l+o;l!==c;l+=4)Xn.slerpFlat(i,0,s,l-o,s,l,a);return i}});class ed extends Jp{InterpolantFactoryMethodLinear(t){return new td(this.times,this.values,this.getValueSize(),t)}}exports.QuaternionKeyframeTrack=ed,ed.prototype.ValueTypeName="quaternion",ed.prototype.DefaultInterpolation=Oe,ed.prototype.InterpolantFactoryMethodSmooth=void 0;class nd extends Jp{}exports.StringKeyframeTrack=nd,nd.prototype.ValueTypeName="string",nd.prototype.ValueBufferType=Array,nd.prototype.DefaultInterpolation=Fe,nd.prototype.InterpolantFactoryMethodLinear=void 0,nd.prototype.InterpolantFactoryMethodSmooth=void 0;class rd extends Jp{}exports.VectorKeyframeTrack=rd,rd.prototype.ValueTypeName="vector";class id{constructor(t,e=-1,n,r=ke){this.name=t,this.tracks=n,this.duration=e,this.blendMode=r,this.uuid=Fn.generateUUID(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],n=t.tracks,r=1/(t.fps||1);for(let s=0,o=n.length;s!==o;++s)e.push(od(n[s]).scale(r));const i=new this(t.name,t.duration,e,t.blendMode);return i.uuid=t.uuid,i}static toJSON(t){const e=[],n=t.tracks,r={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let i=0,s=n.length;i!==s;++i)e.push(Jp.toJSON(n[i]));return r}static CreateFromMorphTargetSequence(t,e,n,r){const i=e.length,s=[];for(let o=0;o<i;o++){let t=[],a=[];t.push((o+i-1)%i,o,(o+1)%i),a.push(0,1,0);const l=jp.getKeyframeOrder(t);t=jp.sortedArray(t,1,l),a=jp.sortedArray(a,1,l),r||0!==t[0]||(t.push(i),a.push(a[0])),s.push(new $p(".morphTargetInfluences["+e[o].name+"]",t,a).scale(1/n))}return new this(t,-1,s)}static findByName(t,e){let n=t;if(!Array.isArray(t)){const e=t;n=e.geometry&&e.geometry.animations||e.animations}for(let r=0;r<n.length;r++)if(n[r].name===e)return n[r];return null}static CreateClipsFromMorphTargetSequences(t,e,n){const r={},i=/^([\w-]*?)([\d]+)$/;for(let o=0,a=t.length;o<a;o++){const e=t[o],n=e.name.match(i);if(n&&n.length>1){const t=n[1];let i=r[t];i||(r[t]=i=[]),i.push(e)}}const s=[];for(const o in r)s.push(this.CreateFromMorphTargetSequence(o,r[o],e,n));return s}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const n=function(t,e,n,r,i){if(0!==n.length){const s=[],o=[];jp.flattenJSON(n,s,o,r),0!==s.length&&i.push(new t(e,s,o))}},r=[],i=t.name||"default",s=t.fps||30,o=t.blendMode;let a=t.length||-1;const l=t.hierarchy||[];for(let c=0;c<l.length;c++){const t=l[c].keys;if(t&&0!==t.length)if(t[0].morphTargets){const e={};let n;for(n=0;n<t.length;n++)if(t[n].morphTargets)for(let r=0;r<t[n].morphTargets.length;r++)e[t[n].morphTargets[r]]=-1;for(const i in e){const e=[],s=[];for(let r=0;r!==t[n].morphTargets.length;++r){const r=t[n];e.push(r.time),s.push(r.morphTarget===i?1:0)}r.push(new $p(".morphTargetInfluence["+i+"]",e,s))}a=e.length*(s||1)}else{const i=".bones["+e[c].name+"]";n(rd,i+".position",t,"pos",r),n(ed,i+".quaternion",t,"rot",r),n(rd,i+".scale",t,"scl",r)}}return 0===r.length?null:new this(i,a,r,o)}resetDuration(){let t=0;for(let e=0,n=this.tracks.length;e!==n;++e){const n=this.tracks[e];t=Math.max(t,n.times[n.times.length-1])}return this.duration=t,this}trim(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this}validate(){let t=!0;for(let e=0;e<this.tracks.length;e++)t=t&&this.tracks[e].validate();return t}optimize(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}clone(){const t=[];for(let e=0;e<this.tracks.length;e++)t.push(this.tracks[e].clone());return new this.constructor(this.name,this.duration,t,this.blendMode)}toJSON(){return this.constructor.toJSON(this)}}function sd(t){switch(t.toLowerCase()){case"scalar":case"double":case"float":case"number":case"integer":return $p;case"vector":case"vector2":case"vector3":case"vector4":return rd;case"color":return Kp;case"quaternion":return ed;case"bool":case"boolean":return Qp;case"string":return nd}throw new Error("THREE.KeyframeTrack: Unsupported typeName: "+t)}function od(t){if(void 0===t.type)throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");const e=sd(t.type);if(void 0===t.times){const e=[],n=[];jp.flattenJSON(t.keys,e,n,"value"),t.times=e,t.values=n}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)}exports.AnimationClip=id;const ad={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}};function ld(t,e,n){const r=this;let i=!1,s=0,o=0,a=void 0;const l=[];this.onStart=void 0,this.onLoad=t,this.onProgress=e,this.onError=n,this.itemStart=function(t){o++,!1===i&&void 0!==r.onStart&&r.onStart(t,s,o),i=!0},this.itemEnd=function(t){s++,void 0!==r.onProgress&&r.onProgress(t,s,o),s===o&&(i=!1,void 0!==r.onLoad&&r.onLoad())},this.itemError=function(t){void 0!==r.onError&&r.onError(t)},this.resolveURL=function(t){return a?a(t):t},this.setURLModifier=function(t){return a=t,this},this.addHandler=function(t,e){return l.push(t,e),this},this.removeHandler=function(t){const e=l.indexOf(t);return-1!==e&&l.splice(e,2),this},this.getHandler=function(t){for(let e=0,n=l.length;e<n;e+=2){const n=l[e],r=l[e+1];if(n.global&&(n.lastIndex=0),n.test(t))return r}return null}}exports.Cache=ad;const cd=new ld;function hd(t){this.manager=void 0!==t?t:cd,this.crossOrigin="anonymous",this.withCredentials=!1,this.path="",this.resourcePath="",this.requestHeader={}}exports.DefaultLoadingManager=cd,Object.assign(hd.prototype,{load:function(){},loadAsync:function(t,e){const n=this;return new Promise(function(r,i){n.load(t,r,e,i)})},parse:function(){},setCrossOrigin:function(t){return this.crossOrigin=t,this},setWithCredentials:function(t){return this.withCredentials=t,this},setPath:function(t){return this.path=t,this},setResourcePath:function(t){return this.resourcePath=t,this},setRequestHeader:function(t){return this.requestHeader=t,this}});const ud={};function pd(t){hd.call(this,t)}pd.prototype=Object.assign(Object.create(hd.prototype),{constructor:pd,load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;if(void 0!==ud[t])return void ud[t].push({onLoad:e,onProgress:n,onError:r});const o=t.match(/^data:(.*?)(;base64)?,(.*)$/);let a;if(o){const n=o[1],s=!!o[2];let a=o[3];a=decodeURIComponent(a),s&&(a=atob(a));try{let s;const o=(this.responseType||"").toLowerCase();switch(o){case"arraybuffer":case"blob":const t=new Uint8Array(a.length);for(let n=0;n<a.length;n++)t[n]=a.charCodeAt(n);s="blob"===o?new Blob([t.buffer],{type:n}):t.buffer;break;case"document":const e=new DOMParser;s=e.parseFromString(a,n);break;case"json":s=JSON.parse(a);break;default:s=a}setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0)}catch(l){setTimeout(function(){r&&r(l),i.manager.itemError(t),i.manager.itemEnd(t)},0)}}else{ud[t]=[],ud[t].push({onLoad:e,onProgress:n,onError:r}),(a=new XMLHttpRequest).open("GET",t,!0),a.addEventListener("load",function(e){const n=this.response,r=ud[t];if(delete ud[t],200===this.status||0===this.status){0===this.status&&console.warn("THREE.FileLoader: HTTP Status 0 received."),ad.add(t,n);for(let t=0,e=r.length;t<e;t++){const e=r[t];e.onLoad&&e.onLoad(n)}i.manager.itemEnd(t)}else{for(let t=0,n=r.length;t<n;t++){const n=r[t];n.onError&&n.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)}},!1),a.addEventListener("progress",function(e){const n=ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onProgress&&r.onProgress(e)}},!1),a.addEventListener("error",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),a.addEventListener("abort",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),void 0!==this.responseType&&(a.responseType=this.responseType),void 0!==this.withCredentials&&(a.withCredentials=this.withCredentials),a.overrideMimeType&&a.overrideMimeType(void 0!==this.mimeType?this.mimeType:"text/plain");for(const t in this.requestHeader)a.setRequestHeader(t,this.requestHeader[t]);a.send(null)}return i.manager.itemStart(t),a},setResponseType:function(t){return this.responseType=t,this},setMimeType:function(t){return this.mimeType=t,this}});class dd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=[];for(let n=0;n<t.length;n++){const r=id.parse(t[n]);e.push(r)}return e}}function md(t){hd.call(this,t)}exports.AnimationLoader=dd,md.prototype=Object.assign(Object.create(hd.prototype),{constructor:md,load:function(t,e,n,r){const i=this,s=[],o=new wu,a=new pd(this.manager);a.setPath(this.path),a.setResponseType("arraybuffer"),a.setRequestHeader(this.requestHeader),a.setWithCredentials(i.withCredentials);let l=0;function c(c){a.load(t[c],function(t){const n=i.parse(t,!0);s[c]={width:n.width,height:n.height,format:n.format,mipmaps:n.mipmaps},6===(l+=1)&&(1===n.mipmapCount&&(o.minFilter=gt),o.image=s,o.format=n.format,o.needsUpdate=!0,e&&e(o))},n,r)}if(Array.isArray(t))for(let h=0,u=t.length;h<u;++h)c(h);else a.load(t,function(t){const n=i.parse(t,!0);if(n.isCubemap){const t=n.mipmaps.length/n.mipmapCount;for(let e=0;e<t;e++){s[e]={mipmaps:[]};for(let t=0;t<n.mipmapCount;t++)s[e].mipmaps.push(n.mipmaps[e*n.mipmapCount+t]),s[e].format=n.format,s[e].width=n.width,s[e].height=n.height}o.image=s}else o.image.width=n.width,o.image.height=n.height,o.mipmaps=n.mipmaps;1===n.mipmapCount&&(o.minFilter=gt),o.format=n.format,o.needsUpdate=!0,e&&e(o)},n,r);return o}});class fd extends hd{constructor(t){super(t)}load(t,e,n,r){void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o=document.createElementNS("http://www.w3.org/1999/xhtml","img");function a(){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),ad.add(t,this),e&&e(this),i.manager.itemEnd(t)}function l(e){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}return o.addEventListener("load",a,!1),o.addEventListener("error",l,!1),"data:"!==t.substr(0,5)&&void 0!==this.crossOrigin&&(o.crossOrigin=this.crossOrigin),i.manager.itemStart(t),o.src=t,o}}exports.ImageLoader=fd;class gd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=new bs,s=new fd(this.manager);s.setCrossOrigin(this.crossOrigin),s.setPath(this.path);let o=0;function a(n){s.load(t[n],function(t){i.images[n]=t,6===++o&&(i.needsUpdate=!0,e&&e(i))},void 0,r)}for(let l=0;l<t.length;++l)a(l);return i}}function xd(t){hd.call(this,t)}function vd(t){hd.call(this,t)}function yd(){this.type="Curve",this.arcLengthDivisions=200}exports.CubeTextureLoader=gd,xd.prototype=Object.assign(Object.create(hd.prototype),{constructor:xd,load:function(t,e,n,r){const i=this,s=new Ms,o=new pd(this.manager);return o.setResponseType("arraybuffer"),o.setRequestHeader(this.requestHeader),o.setPath(this.path),o.setWithCredentials(i.withCredentials),o.load(t,function(t){const n=i.parse(t);n&&(void 0!==n.image?s.image=n.image:void 0!==n.data&&(s.image.width=n.width,s.image.height=n.height,s.image.data=n.data),s.wrapS=void 0!==n.wrapS?n.wrapS:ct,s.wrapT=void 0!==n.wrapT?n.wrapT:ct,s.magFilter=void 0!==n.magFilter?n.magFilter:gt,s.minFilter=void 0!==n.minFilter?n.minFilter:gt,s.anisotropy=void 0!==n.anisotropy?n.anisotropy:1,void 0!==n.encoding&&(s.encoding=n.encoding),void 0!==n.flipY&&(s.flipY=n.flipY),void 0!==n.format&&(s.format=n.format),void 0!==n.type&&(s.type=n.type),void 0!==n.mipmaps&&(s.mipmaps=n.mipmaps,s.minFilter=yt),1===n.mipmapCount&&(s.minFilter=gt),s.needsUpdate=!0,e&&e(s,n))},n,r),s}}),vd.prototype=Object.assign(Object.create(hd.prototype),{constructor:vd,load:function(t,e,n,r){const i=new kn,s=new fd(this.manager);return s.setCrossOrigin(this.crossOrigin),s.setPath(this.path),s.load(t,function(n){i.image=n;const r=t.search(/\.jpe?g($|\?)/i)>0||0===t.search(/^data\:image\/jpeg/);i.format=r?Bt:Nt,i.needsUpdate=!0,void 0!==e&&e(i)},n,r),i}}),Object.assign(yd.prototype,{getPoint:function(){return console.warn("THREE.Curve: .getPoint() not implemented."),null},getPointAt:function(t,e){const n=this.getUtoTmapping(t);return this.getPoint(n,e)},getPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return e},getSpacedPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPointAt(n/t));return e},getLength:function(){const t=this.getLengths();return t[t.length-1]},getLengths:function(t){if(void 0===t&&(t=this.arcLengthDivisions),this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;const e=[];let n,r=this.getPoint(0),i=0;e.push(0);for(let s=1;s<=t;s++)i+=(n=this.getPoint(s/t)).distanceTo(r),e.push(i),r=n;return this.cacheArcLengths=e,e},updateArcLengths:function(){this.needsUpdate=!0,this.getLengths()},getUtoTmapping:function(t,e){const n=this.getLengths();let r=0;const i=n.length;let s;s=e||t*n[i-1];let o,a=0,l=i-1;for(;a<=l;)if((o=n[r=Math.floor(a+(l-a)/2)]-s)<0)a=r+1;else{if(!(o>0)){l=r;break}l=r-1}if(n[r=l]===s)return r/(i-1);const c=n[r];return(r+(s-c)/(n[r+1]-c))/(i-1)},getTangent:function(t,e){let n=t-1e-4,r=t+1e-4;n<0&&(n=0),r>1&&(r=1);const i=this.getPoint(n),s=this.getPoint(r),o=e||(i.isVector2?new On:new Yn);return o.copy(s).sub(i).normalize(),o},getTangentAt:function(t,e){const n=this.getUtoTmapping(t);return this.getTangent(n,e)},computeFrenetFrames:function(t,e){const n=new Yn,r=[],i=[],s=[],o=new Yn,a=new wr;for(let p=0;p<=t;p++){const e=p/t;r[p]=this.getTangentAt(e,new Yn),r[p].normalize()}i[0]=new Yn,s[0]=new Yn;let l=Number.MAX_VALUE;const c=Math.abs(r[0].x),h=Math.abs(r[0].y),u=Math.abs(r[0].z);c<=l&&(l=c,n.set(1,0,0)),h<=l&&(l=h,n.set(0,1,0)),u<=l&&n.set(0,0,1),o.crossVectors(r[0],n).normalize(),i[0].crossVectors(r[0],o),s[0].crossVectors(r[0],i[0]);for(let p=1;p<=t;p++){if(i[p]=i[p-1].clone(),s[p]=s[p-1].clone(),o.crossVectors(r[p-1],r[p]),o.length()>Number.EPSILON){o.normalize();const t=Math.acos(Fn.clamp(r[p-1].dot(r[p]),-1,1));i[p].applyMatrix4(a.makeRotationAxis(o,t))}s[p].crossVectors(r[p],i[p])}if(!0===e){let e=Math.acos(Fn.clamp(i[0].dot(i[t]),-1,1));e/=t,r[0].dot(o.crossVectors(i[0],i[t]))>0&&(e=-e);for(let n=1;n<=t;n++)i[n].applyMatrix4(a.makeRotationAxis(r[n],e*n)),s[n].crossVectors(r[n],i[n])}return{tangents:r,normals:i,binormals:s}},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this},toJSON:function(){const t={metadata:{version:4.5,type:"Curve",generator:"Curve.toJSON"}};return t.arcLengthDivisions=this.arcLengthDivisions,t.type=this.type,t},fromJSON:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}});class _d extends yd{constructor(t=0,e=0,n=1,r=1,i=0,s=2*Math.PI,o=!1,a=0){super(),this.type="EllipseCurve",this.aX=t,this.aY=e,this.xRadius=n,this.yRadius=r,this.aStartAngle=i,this.aEndAngle=s,this.aClockwise=o,this.aRotation=a}getPoint(t,e){const n=e||new On,r=2*Math.PI;let i=this.aEndAngle-this.aStartAngle;const s=Math.abs(i)<Number.EPSILON;for(;i<0;)i+=r;for(;i>r;)i-=r;i<Number.EPSILON&&(i=s?0:r),!0!==this.aClockwise||s||(i===r?i=-r:i-=r);const o=this.aStartAngle+t*i;let a=this.aX+this.xRadius*Math.cos(o),l=this.aY+this.yRadius*Math.sin(o);if(0!==this.aRotation){const t=Math.cos(this.aRotation),e=Math.sin(this.aRotation),n=a-this.aX,r=l-this.aY;a=n*t-r*e+this.aX,l=n*e+r*t+this.aY}return n.set(a,l)}copy(t){return super.copy(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}toJSON(){const t=super.toJSON();return t.aX=this.aX,t.aY=this.aY,t.xRadius=this.xRadius,t.yRadius=this.yRadius,t.aStartAngle=this.aStartAngle,t.aEndAngle=this.aEndAngle,t.aClockwise=this.aClockwise,t.aRotation=this.aRotation,t}fromJSON(t){return super.fromJSON(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}}exports.EllipseCurve=_d,_d.prototype.isEllipseCurve=!0;class bd extends _d{constructor(t,e,n,r,i,s){super(t,e,n,n,r,i,s),this.type="ArcCurve"}}function wd(){let t=0,e=0,n=0,r=0;function i(i,s,o,a){t=i,e=o,n=-3*i+3*s-2*o-a,r=2*i-2*s+o+a}return{initCatmullRom:function(t,e,n,r,s){i(e,n,s*(n-t),s*(r-e))},initNonuniformCatmullRom:function(t,e,n,r,s,o,a){let l=(e-t)/s-(n-t)/(s+o)+(n-e)/o,c=(n-e)/o-(r-e)/(o+a)+(r-n)/a;i(e,n,l*=o,c*=o)},calc:function(i){const s=i*i;return t+e*i+n*s+r*(s*i)}}}exports.ArcCurve=bd,bd.prototype.isArcCurve=!0;const Md=new Yn,Sd=new wd,Td=new wd,Ed=new wd;class Ad extends yd{constructor(t=[],e=!1,n="centripetal",r=.5){super(),this.type="CatmullRomCurve3",this.points=t,this.closed=e,this.curveType=n,this.tension=r}getPoint(t,e=new Yn){const n=e,r=this.points,i=r.length,s=(i-(this.closed?0:1))*t;let o,a,l=Math.floor(s),c=s-l;this.closed?l+=l>0?0:(Math.floor(Math.abs(l)/i)+1)*i:0===c&&l===i-1&&(l=i-2,c=1),this.closed||l>0?o=r[(l-1)%i]:(Md.subVectors(r[0],r[1]).add(r[0]),o=Md);const h=r[l%i],u=r[(l+1)%i];if(this.closed||l+2<i?a=r[(l+2)%i]:(Md.subVectors(r[i-1],r[i-2]).add(r[i-1]),a=Md),"centripetal"===this.curveType||"chordal"===this.curveType){const t="chordal"===this.curveType?.5:.25;let e=Math.pow(o.distanceToSquared(h),t),n=Math.pow(h.distanceToSquared(u),t),r=Math.pow(u.distanceToSquared(a),t);n<1e-4&&(n=1),e<1e-4&&(e=n),r<1e-4&&(r=n),Sd.initNonuniformCatmullRom(o.x,h.x,u.x,a.x,e,n,r),Td.initNonuniformCatmullRom(o.y,h.y,u.y,a.y,e,n,r),Ed.initNonuniformCatmullRom(o.z,h.z,u.z,a.z,e,n,r)}else"catmullrom"===this.curveType&&(Sd.initCatmullRom(o.x,h.x,u.x,a.x,this.tension),Td.initCatmullRom(o.y,h.y,u.y,a.y,this.tension),Ed.initCatmullRom(o.z,h.z,u.z,a.z,this.tension));return n.set(Sd.calc(c),Td.calc(c),Ed.calc(c)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t.closed=this.closed,t.curveType=this.curveType,t.tension=this.tension,t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new Yn).fromArray(n))}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}}function Ld(t,e,n,r,i){const s=.5*(r-e),o=.5*(i-n),a=t*t;return(2*n-2*r+s+o)*(t*a)+(-3*n+3*r-2*s-o)*a+s*t+n}function Rd(t,e){const n=1-t;return n*n*e}function Cd(t,e){return 2*(1-t)*t*e}function Pd(t,e){return t*t*e}function Dd(t,e,n,r){return Rd(t,e)+Cd(t,n)+Pd(t,r)}function Id(t,e){const n=1-t;return n*n*n*e}function Bd(t,e){const n=1-t;return 3*n*n*t*e}function Nd(t,e){return 3*(1-t)*t*t*e}function Fd(t,e){return t*t*t*e}function Od(t,e,n,r,i){return Id(t,e)+Bd(t,n)+Nd(t,r)+Fd(t,i)}exports.CatmullRomCurve3=Ad,Ad.prototype.isCatmullRomCurve3=!0;class zd extends yd{constructor(t=new On,e=new On,n=new On,r=new On){super(),this.type="CubicBezierCurve",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve=zd,zd.prototype.isCubicBezierCurve=!0;class Gd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn,r=new Yn){super(),this.type="CubicBezierCurve3",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y),Od(t,r.z,i.z,s.z,o.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve3=Gd,Gd.prototype.isCubicBezierCurve3=!0;class Hd extends yd{constructor(t=new On,e=new On){super(),this.type="LineCurve",this.v1=t,this.v2=e}getPoint(t,e=new On){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e){const n=e||new On;return n.copy(this.v2).sub(this.v1).normalize(),n}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve=Hd,Hd.prototype.isLineCurve=!0;class Ud extends yd{constructor(t=new Yn,e=new Yn){super(),this.type="LineCurve3",this.isLineCurve3=!0,this.v1=t,this.v2=e}getPoint(t,e=new Yn){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve3=Ud;class kd extends yd{constructor(t=new On,e=new On,n=new On){super(),this.type="QuadraticBezierCurve",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve=kd,kd.prototype.isQuadraticBezierCurve=!0;class Vd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn){super(),this.type="QuadraticBezierCurve3",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y),Dd(t,r.z,i.z,s.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve3=Vd,Vd.prototype.isQuadraticBezierCurve3=!0;class Wd extends yd{constructor(t=[]){super(),this.type="SplineCurve",this.points=t}getPoint(t,e=new On){const n=e,r=this.points,i=(r.length-1)*t,s=Math.floor(i),o=i-s,a=r[0===s?s:s-1],l=r[s],c=r[s>r.length-2?r.length-1:s+1],h=r[s>r.length-3?r.length-1:s+2];return n.set(Ld(o,a.x,l.x,c.x,h.x),Ld(o,a.y,l.y,c.y,h.y)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new On).fromArray(n))}return this}}exports.SplineCurve=Wd,Wd.prototype.isSplineCurve=!0;var jd=Object.freeze({__proto__:null,ArcCurve:bd,CatmullRomCurve3:Ad,CubicBezierCurve:zd,CubicBezierCurve3:Gd,EllipseCurve:_d,LineCurve:Hd,LineCurve3:Ud,QuadraticBezierCurve:kd,QuadraticBezierCurve3:Vd,SplineCurve:Wd});class qd extends yd{constructor(){super(),this.type="CurvePath",this.curves=[],this.autoClose=!1}add(t){this.curves.push(t)}closePath(){const t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);t.equals(e)||this.curves.push(new Hd(e,t))}getPoint(t){const e=t*this.getLength(),n=this.getCurveLengths();let r=0;for(;r<n.length;){if(n[r]>=e){const t=n[r]-e,i=this.curves[r],s=i.getLength(),o=0===s?0:1-t/s;return i.getPointAt(o)}r++}return null}getLength(){const t=this.getCurveLengths();return t[t.length-1]}updateArcLengths(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()}getCurveLengths(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;const t=[];let e=0;for(let n=0,r=this.curves.length;n<r;n++)e+=this.curves[n].getLength(),t.push(e);return this.cacheLengths=t,t}getSpacedPoints(t=40){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return this.autoClose&&e.push(e[0]),e}getPoints(t=12){const e=[];let n;for(let r=0,i=this.curves;r<i.length;r++){const s=i[r],o=s&&s.isEllipseCurve?2*t:s&&(s.isLineCurve||s.isLineCurve3)?1:s&&s.isSplineCurve?t*s.points.length:t,a=s.getPoints(o);for(let t=0;t<a.length;t++){const r=a[t];n&&n.equals(r)||(e.push(r),n=r)}}return this.autoClose&&e.length>1&&!e[e.length-1].equals(e[0])&&e.push(e[0]),e}copy(t){super.copy(t),this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push(n.clone())}return this.autoClose=t.autoClose,this}toJSON(){const t=super.toJSON();t.autoClose=this.autoClose,t.curves=[];for(let e=0,n=this.curves.length;e<n;e++){const n=this.curves[e];t.curves.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.autoClose=t.autoClose,this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push((new jd[n.type]).fromJSON(n))}return this}}exports.CurvePath=qd;class Xd extends qd{constructor(t){super(),this.type="Path",this.currentPoint=new On,t&&this.setFromPoints(t)}setFromPoints(t){this.moveTo(t[0].x,t[0].y);for(let e=1,n=t.length;e<n;e++)this.lineTo(t[e].x,t[e].y);return this}moveTo(t,e){return this.currentPoint.set(t,e),this}lineTo(t,e){const n=new Hd(this.currentPoint.clone(),new On(t,e));return this.curves.push(n),this.currentPoint.set(t,e),this}quadraticCurveTo(t,e,n,r){const i=new kd(this.currentPoint.clone(),new On(t,e),new On(n,r));return this.curves.push(i),this.currentPoint.set(n,r),this}bezierCurveTo(t,e,n,r,i,s){const o=new zd(this.currentPoint.clone(),new On(t,e),new On(n,r),new On(i,s));return this.curves.push(o),this.currentPoint.set(i,s),this}splineThru(t){const e=[this.currentPoint.clone()].concat(t),n=new Wd(e);return this.curves.push(n),this.currentPoint.copy(t[t.length-1]),this}arc(t,e,n,r,i,s){const o=this.currentPoint.x,a=this.currentPoint.y;return this.absarc(t+o,e+a,n,r,i,s),this}absarc(t,e,n,r,i,s){return this.absellipse(t,e,n,n,r,i,s),this}ellipse(t,e,n,r,i,s,o,a){const l=this.currentPoint.x,c=this.currentPoint.y;return this.absellipse(t+l,e+c,n,r,i,s,o,a),this}absellipse(t,e,n,r,i,s,o,a){const l=new _d(t,e,n,r,i,s,o,a);if(this.curves.length>0){const t=l.getPoint(0);t.equals(this.currentPoint)||this.lineTo(t.x,t.y)}this.curves.push(l);const c=l.getPoint(1);return this.currentPoint.copy(c),this}copy(t){return super.copy(t),this.currentPoint.copy(t.currentPoint),this}toJSON(){const t=super.toJSON();return t.currentPoint=this.currentPoint.toArray(),t}fromJSON(t){return super.fromJSON(t),this.currentPoint.fromArray(t.currentPoint),this}}exports.Path=Xd;class Yd extends Xd{constructor(t){super(t),this.uuid=Fn.generateUUID(),this.type="Shape",this.holes=[]}getPointsHoles(t){const e=[];for(let n=0,r=this.holes.length;n<r;n++)e[n]=this.holes[n].getPoints(t);return e}extractPoints(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}}copy(t){super.copy(t),this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.uuid=this.uuid,t.holes=[];for(let e=0,n=this.holes.length;e<n;e++){const n=this.holes[e];t.holes.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.uuid=t.uuid,this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push((new Xd).fromJSON(n))}return this}}exports.Shape=Yd;class Zd extends Xr{constructor(t,e=1){super(),this.type="Light",this.color=new xi(t),this.intensity=e}copy(t){return super.copy(t),this.color.copy(t.color),this.intensity=t.intensity,this}toJSON(t){const e=super.toJSON(t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}exports.Light=Zd,Zd.prototype.isLight=!0;class Jd extends Zd{constructor(t,e,n){super(t,n),this.type="HemisphereLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.groundColor=new xi(e)}copy(t){return Zd.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}exports.HemisphereLight=Jd,Jd.prototype.isHemisphereLight=!0;const Qd=new wr,Kd=new Yn,$d=new Yn;class tm{constructor(t){this.camera=t,this.bias=0,this.normalBias=0,this.radius=1,this.mapSize=new On(512,512),this.map=null,this.mapPass=null,this.matrix=new wr,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new Es,this._frameExtents=new On(1,1),this._viewportCount=1,this._viewports=[new Wn(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,n=this.matrix;Kd.setFromMatrixPosition(t.matrixWorld),e.position.copy(Kd),$d.setFromMatrixPosition(t.target.matrixWorld),e.lookAt($d),e.updateMatrixWorld(),Qd.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Qd),n.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),n.multiply(e.projectionMatrix),n.multiply(e.matrixWorldInverse)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}copy(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class em extends tm{constructor(){super(new xs(50,1,.5,500)),this.focus=1}updateMatrices(t){const e=this.camera,n=2*Fn.RAD2DEG*t.angle*this.focus,r=this.mapSize.width/this.mapSize.height,i=t.distance||e.far;n===e.fov&&r===e.aspect&&i===e.far||(e.fov=n,e.aspect=r,e.far=i,e.updateProjectionMatrix()),super.updateMatrices(t)}}em.prototype.isSpotLightShadow=!0;class nm extends Zd{constructor(t,e,n=0,r=Math.PI/3,i=0,s=1){super(t,e),this.type="SpotLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.distance=n,this.angle=r,this.penumbra=i,this.decay=s,this.shadow=new em}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}copy(t){return super.copy(t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.SpotLight=nm,nm.prototype.isSpotLight=!0;const rm=new wr,im=new Yn,sm=new Yn;class om extends tm{constructor(){super(new xs(90,1,.5,500)),this._frameExtents=new On(4,2),this._viewportCount=6,this._viewports=[new Wn(2,1,1,1),new Wn(0,1,1,1),new Wn(3,1,1,1),new Wn(1,1,1,1),new Wn(3,0,1,1),new Wn(1,0,1,1)],this._cubeDirections=[new Yn(1,0,0),new Yn(-1,0,0),new Yn(0,0,1),new Yn(0,0,-1),new Yn(0,1,0),new Yn(0,-1,0)],this._cubeUps=[new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,0,1),new Yn(0,0,-1)]}updateMatrices(t,e=0){const n=this.camera,r=this.matrix;im.setFromMatrixPosition(t.matrixWorld),n.position.copy(im),sm.copy(n.position),sm.add(this._cubeDirections[e]),n.up.copy(this._cubeUps[e]),n.lookAt(sm),n.updateMatrixWorld(),r.makeTranslation(-im.x,-im.y,-im.z),rm.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),this._frustum.setFromProjectionMatrix(rm)}}om.prototype.isPointLightShadow=!0;class am extends Zd{constructor(t,e,n=0,r=1){super(t,e),this.type="PointLight",this.distance=n,this.decay=r,this.shadow=new om}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}copy(t){return super.copy(t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}exports.PointLight=am,am.prototype.isPointLight=!0;class lm extends gs{constructor(t=-1,e=1,n=1,r=-1,i=.1,s=2e3){super(),this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=n,this.bottom=r,this.near=i,this.far=s,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,n,r,i,s){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,r=(this.top+this.bottom)/2;let i=n-t,s=n+t,o=r+e,a=r-e;if(null!==this.view&&this.view.enabled){const t=(this.right-this.left)/this.view.fullWidth/this.zoom,e=(this.top-this.bottom)/this.view.fullHeight/this.zoom;s=(i+=t*this.view.offsetX)+t*this.view.width,a=(o-=e*this.view.offsetY)-e*this.view.height}this.projectionMatrix.makeOrthographic(i,s,o,a,this.near,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}exports.OrthographicCamera=lm,lm.prototype.isOrthographicCamera=!0;class cm extends tm{constructor(){super(new lm(-5,5,5,-5,.5,500))}}cm.prototype.isDirectionalLightShadow=!0;class hm extends Zd{constructor(t,e){super(t,e),this.type="DirectionalLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.shadow=new cm}copy(t){return super.copy(t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.DirectionalLight=hm,hm.prototype.isDirectionalLight=!0;class um extends Zd{constructor(t,e){super(t,e),this.type="AmbientLight"}}exports.AmbientLight=um,um.prototype.isAmbientLight=!0;class pm extends Zd{constructor(t,e,n=10,r=10){super(t,e),this.type="RectAreaLight",this.width=n,this.height=r}copy(t){return super.copy(t),this.width=t.width,this.height=t.height,this}toJSON(t){const e=super.toJSON(t);return e.object.width=this.width,e.object.height=this.height,e}}exports.RectAreaLight=pm,pm.prototype.isRectAreaLight=!0;class dm{constructor(){this.coefficients=[];for(let t=0;t<9;t++)this.coefficients.push(new Yn)}set(t){for(let e=0;e<9;e++)this.coefficients[e].copy(t[e]);return this}zero(){for(let t=0;t<9;t++)this.coefficients[t].set(0,0,0);return this}getAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.282095),e.addScaledVector(s[1],.488603*r),e.addScaledVector(s[2],.488603*i),e.addScaledVector(s[3],.488603*n),e.addScaledVector(s[4],n*r*1.092548),e.addScaledVector(s[5],r*i*1.092548),e.addScaledVector(s[6],.315392*(3*i*i-1)),e.addScaledVector(s[7],n*i*1.092548),e.addScaledVector(s[8],.546274*(n*n-r*r)),e}getIrradianceAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.886227),e.addScaledVector(s[1],1.023328*r),e.addScaledVector(s[2],1.023328*i),e.addScaledVector(s[3],1.023328*n),e.addScaledVector(s[4],.858086*n*r),e.addScaledVector(s[5],.858086*r*i),e.addScaledVector(s[6],.743125*i*i-.247708),e.addScaledVector(s[7],.858086*n*i),e.addScaledVector(s[8],.429043*(n*n-r*r)),e}add(t){for(let e=0;e<9;e++)this.coefficients[e].add(t.coefficients[e]);return this}addScaledSH(t,e){for(let n=0;n<9;n++)this.coefficients[n].addScaledVector(t.coefficients[n],e);return this}scale(t){for(let e=0;e<9;e++)this.coefficients[e].multiplyScalar(t);return this}lerp(t,e){for(let n=0;n<9;n++)this.coefficients[n].lerp(t.coefficients[n],e);return this}equals(t){for(let e=0;e<9;e++)if(!this.coefficients[e].equals(t.coefficients[e]))return!1;return!0}copy(t){return this.set(t.coefficients)}clone(){return(new this.constructor).copy(this)}fromArray(t,e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].fromArray(t,e+3*r);return this}toArray(t=[],e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].toArray(t,e+3*r);return t}static getBasisAt(t,e){const n=t.x,r=t.y,i=t.z;e[0]=.282095,e[1]=.488603*r,e[2]=.488603*i,e[3]=.488603*n,e[4]=1.092548*n*r,e[5]=1.092548*r*i,e[6]=.315392*(3*i*i-1),e[7]=1.092548*n*i,e[8]=.546274*(n*n-r*r)}}exports.SphericalHarmonics3=dm,dm.prototype.isSphericalHarmonics3=!0;class mm extends Zd{constructor(t=new dm,e=1){super(void 0,e),this.sh=t}copy(t){return super.copy(t),this.sh.copy(t.sh),this}fromJSON(t){return this.intensity=t.intensity,this.sh.fromArray(t.sh),this}toJSON(t){const e=super.toJSON(t);return e.object.sh=this.sh.toArray(),e}}exports.LightProbe=mm,mm.prototype.isLightProbe=!0;class fm extends hd{constructor(t){super(t),this.textures={}}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=this.textures;function n(t){return void 0===e[t]&&console.warn("THREE.MaterialLoader: Undefined texture",t),e[t]}const r=new Wp[t.type];if(void 0!==t.uuid&&(r.uuid=t.uuid),void 0!==t.name&&(r.name=t.name),void 0!==t.color&&void 0!==r.color&&r.color.setHex(t.color),void 0!==t.roughness&&(r.roughness=t.roughness),void 0!==t.metalness&&(r.metalness=t.metalness),void 0!==t.sheen&&(r.sheen=(new xi).setHex(t.sheen)),void 0!==t.emissive&&void 0!==r.emissive&&r.emissive.setHex(t.emissive),void 0!==t.specular&&void 0!==r.specular&&r.specular.setHex(t.specular),void 0!==t.shininess&&(r.shininess=t.shininess),void 0!==t.clearcoat&&(r.clearcoat=t.clearcoat),void 0!==t.clearcoatRoughness&&(r.clearcoatRoughness=t.clearcoatRoughness),void 0!==t.fog&&(r.fog=t.fog),void 0!==t.flatShading&&(r.flatShading=t.flatShading),void 0!==t.blending&&(r.blending=t.blending),void 0!==t.combine&&(r.combine=t.combine),void 0!==t.side&&(r.side=t.side),void 0!==t.opacity&&(r.opacity=t.opacity),void 0!==t.transparent&&(r.transparent=t.transparent),void 0!==t.alphaTest&&(r.alphaTest=t.alphaTest),void 0!==t.depthTest&&(r.depthTest=t.depthTest),void 0!==t.depthWrite&&(r.depthWrite=t.depthWrite),void 0!==t.colorWrite&&(r.colorWrite=t.colorWrite),void 0!==t.stencilWrite&&(r.stencilWrite=t.stencilWrite),void 0!==t.stencilWriteMask&&(r.stencilWriteMask=t.stencilWriteMask),void 0!==t.stencilFunc&&(r.stencilFunc=t.stencilFunc),void 0!==t.stencilRef&&(r.stencilRef=t.stencilRef),void 0!==t.stencilFuncMask&&(r.stencilFuncMask=t.stencilFuncMask),void 0!==t.stencilFail&&(r.stencilFail=t.stencilFail),void 0!==t.stencilZFail&&(r.stencilZFail=t.stencilZFail),void 0!==t.stencilZPass&&(r.stencilZPass=t.stencilZPass),void 0!==t.wireframe&&(r.wireframe=t.wireframe),void 0!==t.wireframeLinewidth&&(r.wireframeLinewidth=t.wireframeLinewidth),void 0!==t.wireframeLinecap&&(r.wireframeLinecap=t.wireframeLinecap),void 0!==t.wireframeLinejoin&&(r.wireframeLinejoin=t.wireframeLinejoin),void 0!==t.rotation&&(r.rotation=t.rotation),1!==t.linewidth&&(r.linewidth=t.linewidth),void 0!==t.dashSize&&(r.dashSize=t.dashSize),void 0!==t.gapSize&&(r.gapSize=t.gapSize),void 0!==t.scale&&(r.scale=t.scale),void 0!==t.polygonOffset&&(r.polygonOffset=t.polygonOffset),void 0!==t.polygonOffsetFactor&&(r.polygonOffsetFactor=t.polygonOffsetFactor),void 0!==t.polygonOffsetUnits&&(r.polygonOffsetUnits=t.polygonOffsetUnits),void 0!==t.skinning&&(r.skinning=t.skinning),void 0!==t.morphTargets&&(r.morphTargets=t.morphTargets),void 0!==t.morphNormals&&(r.morphNormals=t.morphNormals),void 0!==t.dithering&&(r.dithering=t.dithering),void 0!==t.vertexTangents&&(r.vertexTangents=t.vertexTangents),void 0!==t.visible&&(r.visible=t.visible),void 0!==t.toneMapped&&(r.toneMapped=t.toneMapped),void 0!==t.userData&&(r.userData=t.userData),void 0!==t.vertexColors&&("number"==typeof t.vertexColors?r.vertexColors=t.vertexColors>0:r.vertexColors=t.vertexColors),void 0!==t.uniforms)for(const i in t.uniforms){const e=t.uniforms[i];switch(r.uniforms[i]={},e.type){case"t":r.uniforms[i].value=n(e.value);break;case"c":r.uniforms[i].value=(new xi).setHex(e.value);break;case"v2":r.uniforms[i].value=(new On).fromArray(e.value);break;case"v3":r.uniforms[i].value=(new Yn).fromArray(e.value);break;case"v4":r.uniforms[i].value=(new Wn).fromArray(e.value);break;case"m3":r.uniforms[i].value=(new zn).fromArray(e.value);break;case"m4":r.uniforms[i].value=(new wr).fromArray(e.value);break;default:r.uniforms[i].value=e.value}}if(void 0!==t.defines&&(r.defines=t.defines),void 0!==t.vertexShader&&(r.vertexShader=t.vertexShader),void 0!==t.fragmentShader&&(r.fragmentShader=t.fragmentShader),void 0!==t.extensions)for(const i in t.extensions)r.extensions[i]=t.extensions[i];if(void 0!==t.shading&&(r.flatShading=1===t.shading),void 0!==t.size&&(r.size=t.size),void 0!==t.sizeAttenuation&&(r.sizeAttenuation=t.sizeAttenuation),void 0!==t.map&&(r.map=n(t.map)),void 0!==t.matcap&&(r.matcap=n(t.matcap)),void 0!==t.alphaMap&&(r.alphaMap=n(t.alphaMap)),void 0!==t.bumpMap&&(r.bumpMap=n(t.bumpMap)),void 0!==t.bumpScale&&(r.bumpScale=t.bumpScale),void 0!==t.normalMap&&(r.normalMap=n(t.normalMap)),void 0!==t.normalMapType&&(r.normalMapType=t.normalMapType),void 0!==t.normalScale){let e=t.normalScale;!1===Array.isArray(e)&&(e=[e,e]),r.normalScale=(new On).fromArray(e)}return void 0!==t.displacementMap&&(r.displacementMap=n(t.displacementMap)),void 0!==t.displacementScale&&(r.displacementScale=t.displacementScale),void 0!==t.displacementBias&&(r.displacementBias=t.displacementBias),void 0!==t.roughnessMap&&(r.roughnessMap=n(t.roughnessMap)),void 0!==t.metalnessMap&&(r.metalnessMap=n(t.metalnessMap)),void 0!==t.emissiveMap&&(r.emissiveMap=n(t.emissiveMap)),void 0!==t.emissiveIntensity&&(r.emissiveIntensity=t.emissiveIntensity),void 0!==t.specularMap&&(r.specularMap=n(t.specularMap)),void 0!==t.envMap&&(r.envMap=n(t.envMap)),void 0!==t.envMapIntensity&&(r.envMapIntensity=t.envMapIntensity),void 0!==t.reflectivity&&(r.reflectivity=t.reflectivity),void 0!==t.refractionRatio&&(r.refractionRatio=t.refractionRatio),void 0!==t.lightMap&&(r.lightMap=n(t.lightMap)),void 0!==t.lightMapIntensity&&(r.lightMapIntensity=t.lightMapIntensity),void 0!==t.aoMap&&(r.aoMap=n(t.aoMap)),void 0!==t.aoMapIntensity&&(r.aoMapIntensity=t.aoMapIntensity),void 0!==t.gradientMap&&(r.gradientMap=n(t.gradientMap)),void 0!==t.clearcoatMap&&(r.clearcoatMap=n(t.clearcoatMap)),void 0!==t.clearcoatRoughnessMap&&(r.clearcoatRoughnessMap=n(t.clearcoatRoughnessMap)),void 0!==t.clearcoatNormalMap&&(r.clearcoatNormalMap=n(t.clearcoatNormalMap)),void 0!==t.clearcoatNormalScale&&(r.clearcoatNormalScale=(new On).fromArray(t.clearcoatNormalScale)),void 0!==t.transmission&&(r.transmission=t.transmission),void 0!==t.transmissionMap&&(r.transmissionMap=n(t.transmissionMap)),r}setTextures(t){return this.textures=t,this}}exports.MaterialLoader=fm;const gm={decodeText:function(t){if("undefined"!=typeof TextDecoder)return(new TextDecoder).decode(t);let e="";for(let r=0,i=t.length;r<i;r++)e+=String.fromCharCode(t[r]);try{return decodeURIComponent(escape(e))}catch(n){return e}},extractUrlBase:function(t){const e=t.lastIndexOf("/");return-1===e?"./":t.substr(0,e+1)}};function xm(){ki.call(this),this.type="InstancedBufferGeometry",this.instanceCount=1/0}function vm(t,e,n,r){"number"==typeof n&&(r=n,n=!1,console.error("THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.")),bi.call(this,t,e,n),this.meshPerAttribute=r||1}exports.LoaderUtils=gm,xm.prototype=Object.assign(Object.create(ki.prototype),{constructor:xm,isInstancedBufferGeometry:!0,copy:function(t){return ki.prototype.copy.call(this,t),this.instanceCount=t.instanceCount,this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){const t=ki.prototype.toJSON.call(this);return t.instanceCount=this.instanceCount,t.isInstancedBufferGeometry=!0,t}}),vm.prototype=Object.assign(Object.create(bi.prototype),{constructor:vm,isInstancedBufferAttribute:!0,copy:function(t){return bi.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},toJSON:function(){const t=bi.prototype.toJSON.call(this);return t.meshPerAttribute=this.meshPerAttribute,t.isInstancedBufferAttribute=!0,t}});class ym extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e={},n={};function r(t,r){if(void 0!==e[r])return e[r];const i=t.interleavedBuffers[r],s=function(t,e){if(void 0!==n[e])return n[e];const r=t.arrayBuffers[e],i=new Uint32Array(r).buffer;return n[e]=i,i}(t,i.buffer),o=new _h(Bi(i.type,s),i.stride);return o.uuid=i.uuid,e[r]=o,o}const i=t.isInstancedBufferGeometry?new xm:new ki,s=t.data.index;if(void 0!==s){const t=Bi(s.type,s.array);i.setIndex(new bi(t,1))}const o=t.data.attributes;for(const h in o){const e=o[h];let n;if(e.isInterleavedBufferAttribute){n=new wh(r(t.data,e.data),e.itemSize,e.offset,e.normalized)}else{const t=Bi(e.type,e.array);n=new(e.isInstancedBufferAttribute?vm:bi)(t,e.itemSize,e.normalized)}void 0!==e.name&&(n.name=e.name),i.setAttribute(h,n)}const a=t.data.morphAttributes;if(a)for(const h in a){const e=a[h],n=[];for(let i=0,s=e.length;i<s;i++){const s=e[i];let o;if(s.isInterleavedBufferAttribute){o=new wh(r(t.data,s.data),s.itemSize,s.offset,s.normalized)}else{o=new bi(Bi(s.type,s.array),s.itemSize,s.normalized)}void 0!==s.name&&(o.name=s.name),n.push(o)}i.morphAttributes[h]=n}t.data.morphTargetsRelative&&(i.morphTargetsRelative=!0);const l=t.data.groups||t.data.drawcalls||t.data.offsets;if(void 0!==l)for(let h=0,u=l.length;h!==u;++h){const t=l[h];i.addGroup(t.start,t.count,t.materialIndex)}const c=t.data.boundingSphere;if(void 0!==c){const t=new Yn;void 0!==c.center&&t.fromArray(c.center),i.boundingSphere=new dr(t,c.radius)}return t.name&&(i.name=t.name),t.userData&&(i.userData=t.userData),i}}exports.BufferGeometryLoader=ym;class _m extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=""===this.path?gm.extractUrlBase(t):this.path;this.resourcePath=this.resourcePath||s;const o=new pd(this.manager);o.setPath(this.path),o.setRequestHeader(this.requestHeader),o.setWithCredentials(this.withCredentials),o.load(t,function(n){let s=null;try{s=JSON.parse(n)}catch(a){return void 0!==r&&r(a),void console.error("THREE:ObjectLoader: Can't parse "+t+".",a.message)}const o=s.metadata;void 0!==o&&void 0!==o.type&&"geometry"!==o.type.toLowerCase()?i.parse(s,e):console.error("THREE.ObjectLoader: Can't load "+t)},n,r)}parse(t,e){const n=this.parseAnimations(t.animations),r=this.parseShapes(t.shapes),i=this.parseGeometries(t.geometries,r),s=this.parseImages(t.images,function(){void 0!==e&&e(l)}),o=this.parseTextures(t.textures,s),a=this.parseMaterials(t.materials,o),l=this.parseObject(t.object,i,a,n),c=this.parseSkeletons(t.skeletons,l);if(this.bindSkeletons(l,c),void 0!==e){let t=!1;for(const e in s)if(s[e]instanceof HTMLImageElement){t=!0;break}!1===t&&e(l)}return l}parseShapes(t){const e={};if(void 0!==t)for(let n=0,r=t.length;n<r;n++){const r=(new Yd).fromJSON(t[n]);e[r.uuid]=r}return e}parseSkeletons(t,e){const n={},r={};if(e.traverse(function(t){t.isBone&&(r[t.uuid]=t)}),void 0!==t)for(let i=0,s=t.length;i<s;i++){const e=(new Qh).fromJSON(t[i],r);n[e.uuid]=e}return n}parseGeometries(t,e){const n={};let r;if(void 0!==t){const i=new ym;for(let s=0,o=t.length;s<o;s++){let o;const a=t[s];switch(a.type){case"PlaneGeometry":case"PlaneBufferGeometry":o=new Ip[a.type](a.width,a.height,a.widthSegments,a.heightSegments);break;case"BoxGeometry":case"BoxBufferGeometry":o=new Ip[a.type](a.width,a.height,a.depth,a.widthSegments,a.heightSegments,a.depthSegments);break;case"CircleGeometry":case"CircleBufferGeometry":o=new Ip[a.type](a.radius,a.segments,a.thetaStart,a.thetaLength);break;case"CylinderGeometry":case"CylinderBufferGeometry":o=new Ip[a.type](a.radiusTop,a.radiusBottom,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"ConeGeometry":case"ConeBufferGeometry":o=new Ip[a.type](a.radius,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"SphereGeometry":case"SphereBufferGeometry":o=new Ip[a.type](a.radius,a.widthSegments,a.heightSegments,a.phiStart,a.phiLength,a.thetaStart,a.thetaLength);break;case"DodecahedronGeometry":case"DodecahedronBufferGeometry":case"IcosahedronGeometry":case"IcosahedronBufferGeometry":case"OctahedronGeometry":case"OctahedronBufferGeometry":case"TetrahedronGeometry":case"TetrahedronBufferGeometry":o=new Ip[a.type](a.radius,a.detail);break;case"RingGeometry":case"RingBufferGeometry":o=new Ip[a.type](a.innerRadius,a.outerRadius,a.thetaSegments,a.phiSegments,a.thetaStart,a.thetaLength);break;case"TorusGeometry":case"TorusBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.radialSegments,a.tubularSegments,a.arc);break;case"TorusKnotGeometry":case"TorusKnotBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.tubularSegments,a.radialSegments,a.p,a.q);break;case"TubeGeometry":case"TubeBufferGeometry":o=new Ip[a.type]((new jd[a.path.type]).fromJSON(a.path),a.tubularSegments,a.radius,a.radialSegments,a.closed);break;case"LatheGeometry":case"LatheBufferGeometry":o=new Ip[a.type](a.points,a.segments,a.phiStart,a.phiLength);break;case"PolyhedronGeometry":case"PolyhedronBufferGeometry":o=new Ip[a.type](a.vertices,a.indices,a.radius,a.details);break;case"ShapeGeometry":case"ShapeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}o=new Ip[a.type](r,a.curveSegments);break;case"ExtrudeGeometry":case"ExtrudeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}const t=a.options.extrudePath;void 0!==t&&(a.options.extrudePath=(new jd[t.type]).fromJSON(t)),o=new Ip[a.type](r,a.options);break;case"BufferGeometry":case"InstancedBufferGeometry":o=i.parse(a);break;case"Geometry":console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type "'+a.type+'"');continue}o.uuid=a.uuid,void 0!==a.name&&(o.name=a.name),!0===o.isBufferGeometry&&void 0!==a.userData&&(o.userData=a.userData),n[a.uuid]=o}}return n}parseMaterials(t,e){const n={},r={};if(void 0!==t){const i=new fm;i.setTextures(e);for(let e=0,s=t.length;e<s;e++){const s=t[e];if("MultiMaterial"===s.type){const t=[];for(let e=0;e<s.materials.length;e++){const r=s.materials[e];void 0===n[r.uuid]&&(n[r.uuid]=i.parse(r)),t.push(n[r.uuid])}r[s.uuid]=t}else void 0===n[s.uuid]&&(n[s.uuid]=i.parse(s)),r[s.uuid]=n[s.uuid]}}return r}parseAnimations(t){const e={};if(void 0!==t)for(let n=0;n<t.length;n++){const r=t[n],i=id.parse(r);e[i.uuid]=i}return e}parseImages(t,e){const n=this,r={};let i;function s(t){if("string"==typeof t){const e=t;return function(t){return n.manager.itemStart(t),i.load(t,function(){n.manager.itemEnd(t)},void 0,function(){n.manager.itemError(t),n.manager.itemEnd(t)})}(/^(\/\/)|([a-z]+:(\/\/)?)/i.test(e)?e:n.resourcePath+e)}return t.data?{data:Bi(t.type,t.data),width:t.width,height:t.height}:null}if(void 0!==t&&t.length>0){const n=new ld(e);(i=new fd(n)).setCrossOrigin(this.crossOrigin);for(let e=0,i=t.length;e<i;e++){const n=t[e],i=n.url;if(Array.isArray(i)){r[n.uuid]=[];for(let t=0,e=i.length;t<e;t++){const e=s(i[t]);null!==e&&(e instanceof HTMLImageElement?r[n.uuid].push(e):r[n.uuid].push(new Ms(e.data,e.width,e.height)))}}else{const t=s(n.url);null!==t&&(r[n.uuid]=t)}}}return r}parseTextures(t,e){function n(t,e){return"number"==typeof t?t:(console.warn("THREE.ObjectLoader.parseTexture: Constant should be in numeric form.",t),e[t])}const r={};if(void 0!==t)for(let i=0,s=t.length;i<s;i++){const s=t[i];let o;void 0===s.image&&console.warn('THREE.ObjectLoader: No "image" specified for',s.uuid),void 0===e[s.image]&&console.warn("THREE.ObjectLoader: Undefined image",s.image);const a=e[s.image];Array.isArray(a)?(o=new bs(a),6===a.length&&(o.needsUpdate=!0)):(o=a&&a.data?new Ms(a.data,a.width,a.height):new kn(a),a&&(o.needsUpdate=!0)),o.uuid=s.uuid,void 0!==s.name&&(o.name=s.name),void 0!==s.mapping&&(o.mapping=n(s.mapping,bm)),void 0!==s.offset&&o.offset.fromArray(s.offset),void 0!==s.repeat&&o.repeat.fromArray(s.repeat),void 0!==s.center&&o.center.fromArray(s.center),void 0!==s.rotation&&(o.rotation=s.rotation),void 0!==s.wrap&&(o.wrapS=n(s.wrap[0],wm),o.wrapT=n(s.wrap[1],wm)),void 0!==s.format&&(o.format=s.format),void 0!==s.type&&(o.type=s.type),void 0!==s.encoding&&(o.encoding=s.encoding),void 0!==s.minFilter&&(o.minFilter=n(s.minFilter,Mm)),void 0!==s.magFilter&&(o.magFilter=n(s.magFilter,Mm)),void 0!==s.anisotropy&&(o.anisotropy=s.anisotropy),void 0!==s.flipY&&(o.flipY=s.flipY),void 0!==s.premultiplyAlpha&&(o.premultiplyAlpha=s.premultiplyAlpha),void 0!==s.unpackAlignment&&(o.unpackAlignment=s.unpackAlignment),r[s.uuid]=o}return r}parseObject(t,e,n,r){let i,s,o;function a(t){return void 0===e[t]&&console.warn("THREE.ObjectLoader: Undefined geometry",t),e[t]}function l(t){if(void 0!==t){if(Array.isArray(t)){const e=[];for(let r=0,i=t.length;r<i;r++){const i=t[r];void 0===n[i]&&console.warn("THREE.ObjectLoader: Undefined material",i),e.push(n[i])}return e}return void 0===n[t]&&console.warn("THREE.ObjectLoader: Undefined material",t),n[t]}}switch(t.type){case"Scene":i=new yh,void 0!==t.background&&Number.isInteger(t.background)&&(i.background=new xi(t.background)),void 0!==t.fog&&("Fog"===t.fog.type?i.fog=new vh(t.fog.color,t.fog.near,t.fog.far):"FogExp2"===t.fog.type&&(i.fog=new xh(t.fog.color,t.fog.density)));break;case"PerspectiveCamera":i=new xs(t.fov,t.aspect,t.near,t.far),void 0!==t.focus&&(i.focus=t.focus),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.filmGauge&&(i.filmGauge=t.filmGauge),void 0!==t.filmOffset&&(i.filmOffset=t.filmOffset),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"OrthographicCamera":i=new lm(t.left,t.right,t.top,t.bottom,t.near,t.far),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"AmbientLight":i=new um(t.color,t.intensity);break;case"DirectionalLight":i=new hm(t.color,t.intensity);break;case"PointLight":i=new am(t.color,t.intensity,t.distance,t.decay);break;case"RectAreaLight":i=new pm(t.color,t.intensity,t.width,t.height);break;case"SpotLight":i=new nm(t.color,t.intensity,t.distance,t.angle,t.penumbra,t.decay);break;case"HemisphereLight":i=new Jd(t.color,t.groundColor,t.intensity);break;case"LightProbe":i=(new mm).fromJSON(t);break;case"SkinnedMesh":i=new Xh(s=a(t.geometry),o=l(t.material)),void 0!==t.bindMode&&(i.bindMode=t.bindMode),void 0!==t.bindMatrix&&i.bindMatrix.fromArray(t.bindMatrix),void 0!==t.skeleton&&(i.skeleton=t.skeleton);break;case"Mesh":i=new os(s=a(t.geometry),o=l(t.material));break;case"InstancedMesh":s=a(t.geometry),o=l(t.material);const e=t.count,n=t.instanceMatrix;(i=new nu(s,o,e)).instanceMatrix=new bi(new Float32Array(n.array),16);break;case"LOD":i=new Uh;break;case"Line":i=new cu(a(t.geometry),l(t.material));break;case"LineLoop":i=new du(a(t.geometry),l(t.material));break;case"LineSegments":i=new pu(a(t.geometry),l(t.material));break;case"PointCloud":case"Points":i=new yu(a(t.geometry),l(t.material));break;case"Sprite":i=new Oh(l(t.material));break;case"Group":i=new hh;break;case"Bone":i=new Yh;break;default:i=new Xr}if(i.uuid=t.uuid,void 0!==t.name&&(i.name=t.name),void 0!==t.matrix?(i.matrix.fromArray(t.matrix),void 0!==t.matrixAutoUpdate&&(i.matrixAutoUpdate=t.matrixAutoUpdate),i.matrixAutoUpdate&&i.matrix.decompose(i.position,i.quaternion,i.scale)):(void 0!==t.position&&i.position.fromArray(t.position),void 0!==t.rotation&&i.rotation.fromArray(t.rotation),void 0!==t.quaternion&&i.quaternion.fromArray(t.quaternion),void 0!==t.scale&&i.scale.fromArray(t.scale)),void 0!==t.castShadow&&(i.castShadow=t.castShadow),void 0!==t.receiveShadow&&(i.receiveShadow=t.receiveShadow),t.shadow&&(void 0!==t.shadow.bias&&(i.shadow.bias=t.shadow.bias),void 0!==t.shadow.normalBias&&(i.shadow.normalBias=t.shadow.normalBias),void 0!==t.shadow.radius&&(i.shadow.radius=t.shadow.radius),void 0!==t.shadow.mapSize&&i.shadow.mapSize.fromArray(t.shadow.mapSize),void 0!==t.shadow.camera&&(i.shadow.camera=this.parseObject(t.shadow.camera))),void 0!==t.visible&&(i.visible=t.visible),void 0!==t.frustumCulled&&(i.frustumCulled=t.frustumCulled),void 0!==t.renderOrder&&(i.renderOrder=t.renderOrder),void 0!==t.userData&&(i.userData=t.userData),void 0!==t.layers&&(i.layers.mask=t.layers),void 0!==t.children){const s=t.children;for(let t=0;t<s.length;t++)i.add(this.parseObject(s[t],e,n,r))}if(void 0!==t.animations){const e=t.animations;for(let t=0;t<e.length;t++){const n=e[t];i.animations.push(r[n])}}if("LOD"===t.type){void 0!==t.autoUpdate&&(i.autoUpdate=t.autoUpdate);const e=t.levels;for(let t=0;t<e.length;t++){const n=e[t],r=i.getObjectByProperty("uuid",n.object);void 0!==r&&i.addLevel(r,n.distance)}}return i}bindSkeletons(t,e){0!==Object.keys(e).length&&t.traverse(function(t){if(!0===t.isSkinnedMesh&&void 0!==t.skeleton){const n=e[t.skeleton];void 0===n?console.warn("THREE.ObjectLoader: No skeleton found with UUID:",t.skeleton):t.bind(n,t.bindMatrix)}})}setTexturePath(t){return console.warn("THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath()."),this.setResourcePath(t)}}exports.ObjectLoader=_m;const bm={UVMapping:et,CubeReflectionMapping:nt,CubeRefractionMapping:rt,EquirectangularReflectionMapping:it,EquirectangularRefractionMapping:st,CubeUVReflectionMapping:ot,CubeUVRefractionMapping:at},wm={RepeatWrapping:lt,ClampToEdgeWrapping:ct,MirroredRepeatWrapping:ht},Mm={NearestFilter:ut,NearestMipmapNearestFilter:pt,NearestMipmapLinearFilter:mt,LinearFilter:gt,LinearMipmapNearestFilter:xt,LinearMipmapLinearFilter:yt};function Sm(t){"undefined"==typeof createImageBitmap&&console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported."),"undefined"==typeof fetch&&console.warn("THREE.ImageBitmapLoader: fetch() not supported."),hd.call(this,t),this.options={premultiplyAlpha:"none"}}Sm.prototype=Object.assign(Object.create(hd.prototype),{constructor:Sm,isImageBitmapLoader:!0,setOptions:function(t){return this.options=t,this},load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o={};o.credentials="anonymous"===this.crossOrigin?"same-origin":"include",o.headers=this.requestHeader,fetch(t,o).then(function(t){return t.blob()}).then(function(t){return createImageBitmap(t,Object.assign(i.options,{colorSpaceConversion:"none"}))}).then(function(n){ad.add(t,n),e&&e(n),i.manager.itemEnd(t)}).catch(function(e){r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}),i.manager.itemStart(t)}});class Tm{constructor(){this.type="ShapePath",this.color=new xi,this.subPaths=[],this.currentPath=null}moveTo(t,e){return this.currentPath=new Xd,this.subPaths.push(this.currentPath),this.currentPath.moveTo(t,e),this}lineTo(t,e){return this.currentPath.lineTo(t,e),this}quadraticCurveTo(t,e,n,r){return this.currentPath.quadraticCurveTo(t,e,n,r),this}bezierCurveTo(t,e,n,r,i,s){return this.currentPath.bezierCurveTo(t,e,n,r,i,s),this}splineThru(t){return this.currentPath.splineThru(t),this}toShapes(t,e){function n(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n],i=new Yd;i.curves=r.curves,e.push(i)}return e}function r(t,e){const n=e.length;let r=!1;for(let i=n-1,s=0;s<n;i=s++){let n=e[i],o=e[s],a=o.x-n.x,l=o.y-n.y;if(Math.abs(l)>Number.EPSILON){if(l<0&&(n=e[s],a=-a,o=e[i],l=-l),t.y<n.y||t.y>o.y)continue;if(t.y===n.y){if(t.x===n.x)return!0}else{const e=l*(t.x-n.x)-a*(t.y-n.y);if(0===e)return!0;if(e<0)continue;r=!r}}else{if(t.y!==n.y)continue;if(o.x<=t.x&&t.x<=n.x||n.x<=t.x&&t.x<=o.x)return!0}}return r}const i=dp.isClockWise,s=this.subPaths;if(0===s.length)return[];if(!0===e)return n(s);let o,a,l;const c=[];if(1===s.length)return a=s[0],(l=new Yd).curves=a.curves,c.push(l),c;let h=!i(s[0].getPoints());h=t?!h:h;const u=[],p=[];let d,m,f=[],g=0;p[g]=void 0,f[g]=[];for(let x=0,v=s.length;x<v;x++)o=i(d=(a=s[x]).getPoints()),(o=t?!o:o)?(!h&&p[g]&&g++,p[g]={s:new Yd,p:d},p[g].s.curves=a.curves,h&&g++,f[g]=[]):f[g].push({h:a,p:d[0]});if(!p[0])return n(s);if(p.length>1){let t=!1;const e=[];for(let n=0,r=p.length;n<r;n++)u[n]=[];for(let n=0,i=p.length;n<i;n++){const i=f[n];for(let s=0;s<i.length;s++){const o=i[s];let a=!0;for(let i=0;i<p.length;i++)r(o.p,p[i].p)&&(n!==i&&e.push({froms:n,tos:i,hole:s}),a?(a=!1,u[i].push(o)):t=!0);a&&u[n].push(o)}}e.length>0&&(t||(f=u))}for(let x=0,v=p.length;x<v;x++){l=p[x].s,c.push(l);for(let t=0,e=(m=f[x]).length;t<e;t++)l.holes.push(m[t].h)}return c}}exports.ShapePath=Tm;class Em{constructor(t){this.type="Font",this.data=t}generateShapes(t,e=100){const n=[],r=Am(t,e,this.data);for(let i=0,s=r.length;i<s;i++)Array.prototype.push.apply(n,r[i].toShapes());return n}}function Am(t,e,n){const r=Array.from(t),i=e/n.resolution,s=(n.boundingBox.yMax-n.boundingBox.yMin+n.underlineThickness)*i,o=[];let a=0,l=0;for(let c=0;c<r.length;c++){const t=r[c];if("\n"===t)a=0,l-=s;else{const e=Lm(t,i,a,l,n);a+=e.offsetX,o.push(e.path)}}return o}function Lm(t,e,n,r,i){const s=i.glyphs[t]||i.glyphs["?"];if(!s)return void console.error('THREE.Font: character "'+t+'" does not exists in font family '+i.familyName+".");const o=new Tm;let a,l,c,h,u,p,d,m;if(s.o){const t=s._cachedOutline||(s._cachedOutline=s.o.split(" "));for(let i=0,s=t.length;i<s;){switch(t[i++]){case"m":a=t[i++]*e+n,l=t[i++]*e+r,o.moveTo(a,l);break;case"l":a=t[i++]*e+n,l=t[i++]*e+r,o.lineTo(a,l);break;case"q":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,o.quadraticCurveTo(u,p,c,h);break;case"b":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,d=t[i++]*e+n,m=t[i++]*e+r,o.bezierCurveTo(u,p,d,m,c,h)}}}return{offsetX:s.ha*e,path:o}}exports.Font=Em,Em.prototype.isFont=!0;class Rm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(t){let n;try{n=JSON.parse(t)}catch(s){console.warn("THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead."),n=JSON.parse(t.substring(65,t.length-2))}const r=i.parse(n);e&&e(r)},n,r)}parse(t){return new Em(t)}}let Cm;exports.FontLoader=Rm;const Pm={getContext:function(){return void 0===Cm&&(Cm=new(window.AudioContext||window.webkitAudioContext)),Cm},setContext:function(t){Cm=t}};exports.AudioContext=Pm;class Dm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setResponseType("arraybuffer"),s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{const o=n.slice(0);Pm.getContext().decodeAudioData(o,function(t){e(t)})}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}}exports.AudioLoader=Dm;class Im extends mm{constructor(t,e,n=1){super(void 0,n);const r=(new xi).set(t),i=(new xi).set(e),s=new Yn(r.r,r.g,r.b),o=new Yn(i.r,i.g,i.b),a=Math.sqrt(Math.PI),l=a*Math.sqrt(.75);this.sh.coefficients[0].copy(s).add(o).multiplyScalar(a),this.sh.coefficients[1].copy(s).sub(o).multiplyScalar(l)}}exports.HemisphereLightProbe=Im,Im.prototype.isHemisphereLightProbe=!0;class Bm extends mm{constructor(t,e=1){super(void 0,e);const n=(new xi).set(t);this.sh.coefficients[0].set(n.r,n.g,n.b).multiplyScalar(2*Math.sqrt(Math.PI))}}exports.AmbientLightProbe=Bm,Bm.prototype.isAmbientLightProbe=!0;const Nm=new wr,Fm=new wr;class Om{constructor(){this.type="StereoCamera",this.aspect=1,this.eyeSep=.064,this.cameraL=new xs,this.cameraL.layers.enable(1),this.cameraL.matrixAutoUpdate=!1,this.cameraR=new xs,this.cameraR.layers.enable(2),this.cameraR.matrixAutoUpdate=!1,this._cache={focus:null,fov:null,aspect:null,near:null,far:null,zoom:null,eyeSep:null}}update(t){const e=this._cache;if(e.focus!==t.focus||e.fov!==t.fov||e.aspect!==t.aspect*this.aspect||e.near!==t.near||e.far!==t.far||e.zoom!==t.zoom||e.eyeSep!==this.eyeSep){e.focus=t.focus,e.fov=t.fov,e.aspect=t.aspect*this.aspect,e.near=t.near,e.far=t.far,e.zoom=t.zoom,e.eyeSep=this.eyeSep;const n=t.projectionMatrix.clone(),r=e.eyeSep/2,i=r*e.near/e.focus,s=e.near*Math.tan(Fn.DEG2RAD*e.fov*.5)/e.zoom;let o,a;Fm.elements[12]=-r,Nm.elements[12]=r,o=-s*e.aspect+i,a=s*e.aspect+i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraL.projectionMatrix.copy(n),o=-s*e.aspect-i,a=s*e.aspect-i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraR.projectionMatrix.copy(n)}this.cameraL.matrixWorld.copy(t.matrixWorld).multiply(Fm),this.cameraR.matrixWorld.copy(t.matrixWorld).multiply(Nm)}}exports.StereoCamera=Om;class zm{constructor(t){this.autoStart=void 0===t||t,this.startTime=0,this.oldTime=0,this.elapsedTime=0,this.running=!1}start(){this.startTime=Gm(),this.oldTime=this.startTime,this.elapsedTime=0,this.running=!0}stop(){this.getElapsedTime(),this.running=!1,this.autoStart=!1}getElapsedTime(){return this.getDelta(),this.elapsedTime}getDelta(){let t=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){const e=Gm();t=(e-this.oldTime)/1e3,this.oldTime=e,this.elapsedTime+=t}return t}}function Gm(){return("undefined"==typeof performance?Date:performance).now()}exports.Clock=zm;const Hm=new Yn,Um=new Xn,km=new Yn,Vm=new Yn;class Wm extends Xr{constructor(){super(),this.type="AudioListener",this.context=Pm.getContext(),this.gain=this.context.createGain(),this.gain.connect(this.context.destination),this.filter=null,this.timeDelta=0,this._clock=new zm}getInput(){return this.gain}removeFilter(){return null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null),this}getFilter(){return this.filter}setFilter(t){return null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):this.gain.disconnect(this.context.destination),this.filter=t,this.gain.connect(this.filter),this.filter.connect(this.context.destination),this}getMasterVolume(){return this.gain.gain.value}setMasterVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}updateMatrixWorld(t){super.updateMatrixWorld(t);const e=this.context.listener,n=this.up;if(this.timeDelta=this._clock.getDelta(),this.matrixWorld.decompose(Hm,Um,km),Vm.set(0,0,-1).applyQuaternion(Um),e.positionX){const t=this.context.currentTime+this.timeDelta;e.positionX.linearRampToValueAtTime(Hm.x,t),e.positionY.linearRampToValueAtTime(Hm.y,t),e.positionZ.linearRampToValueAtTime(Hm.z,t),e.forwardX.linearRampToValueAtTime(Vm.x,t),e.forwardY.linearRampToValueAtTime(Vm.y,t),e.forwardZ.linearRampToValueAtTime(Vm.z,t),e.upX.linearRampToValueAtTime(n.x,t),e.upY.linearRampToValueAtTime(n.y,t),e.upZ.linearRampToValueAtTime(n.z,t)}else e.setPosition(Hm.x,Hm.y,Hm.z),e.setOrientation(Vm.x,Vm.y,Vm.z,n.x,n.y,n.z)}}exports.AudioListener=Wm;class jm extends Xr{constructor(t){super(),this.type="Audio",this.listener=t,this.context=t.context,this.gain=this.context.createGain(),this.gain.connect(t.getInput()),this.autoplay=!1,this.buffer=null,this.detune=0,this.loop=!1,this.loopStart=0,this.loopEnd=0,this.offset=0,this.duration=void 0,this.playbackRate=1,this.isPlaying=!1,this.hasPlaybackControl=!0,this.source=null,this.sourceType="empty",this._startedAt=0,this._progress=0,this._connected=!1,this.filters=[]}getOutput(){return this.gain}setNodeSource(t){return this.hasPlaybackControl=!1,this.sourceType="audioNode",this.source=t,this.connect(),this}setMediaElementSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaNode",this.source=this.context.createMediaElementSource(t),this.connect(),this}setMediaStreamSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaStreamNode",this.source=this.context.createMediaStreamSource(t),this.connect(),this}setBuffer(t){return this.buffer=t,this.sourceType="buffer",this.autoplay&&this.play(),this}play(t=0){if(!0===this.isPlaying)return void console.warn("THREE.Audio: Audio is already playing.");if(!1===this.hasPlaybackControl)return void console.warn("THREE.Audio: this Audio has no playback control.");this._startedAt=this.context.currentTime+t;const e=this.context.createBufferSource();return e.buffer=this.buffer,e.loop=this.loop,e.loopStart=this.loopStart,e.loopEnd=this.loopEnd,e.onended=this.onEnded.bind(this),e.start(this._startedAt,this._progress+this.offset,this.duration),this.isPlaying=!0,this.source=e,this.setDetune(this.detune),this.setPlaybackRate(this.playbackRate),this.connect()}pause(){if(!1!==this.hasPlaybackControl)return!0===this.isPlaying&&(this._progress+=Math.max(this.context.currentTime-this._startedAt,0)*this.playbackRate,!0===this.loop&&(this._progress=this._progress%(this.duration||this.buffer.duration)),this.source.stop(),this.source.onended=null,this.isPlaying=!1),this;console.warn("THREE.Audio: this Audio has no playback control.")}stop(){if(!1!==this.hasPlaybackControl)return this._progress=0,this.source.stop(),this.source.onended=null,this.isPlaying=!1,this;console.warn("THREE.Audio: this Audio has no playback control.")}connect(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].connect(this.filters[t]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());return this._connected=!0,this}disconnect(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].disconnect(this.filters[t]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this._connected=!1,this}getFilters(){return this.filters}setFilters(t){return t||(t=[]),!0===this._connected?(this.disconnect(),this.filters=t.slice(),this.connect()):this.filters=t.slice(),this}setDetune(t){if(this.detune=t,void 0!==this.source.detune)return!0===this.isPlaying&&this.source.detune.setTargetAtTime(this.detune,this.context.currentTime,.01),this}getDetune(){return this.detune}getFilter(){return this.getFilters()[0]}setFilter(t){return this.setFilters(t?[t]:[])}setPlaybackRate(t){if(!1!==this.hasPlaybackControl)return this.playbackRate=t,!0===this.isPlaying&&this.source.playbackRate.setTargetAtTime(this.playbackRate,this.context.currentTime,.01),this;console.warn("THREE.Audio: this Audio has no playback control.")}getPlaybackRate(){return this.playbackRate}onEnded(){this.isPlaying=!1}getLoop(){return!1===this.hasPlaybackControl?(console.warn("THREE.Audio: this Audio has no playback control."),!1):this.loop}setLoop(t){if(!1!==this.hasPlaybackControl)return this.loop=t,!0===this.isPlaying&&(this.source.loop=this.loop),this;console.warn("THREE.Audio: this Audio has no playback control.")}setLoopStart(t){return this.loopStart=t,this}setLoopEnd(t){return this.loopEnd=t,this}getVolume(){return this.gain.gain.value}setVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}}exports.Audio=jm;const qm=new Yn,Xm=new Xn,Ym=new Yn,Zm=new Yn;class Jm extends jm{constructor(t){super(t),this.panner=this.context.createPanner(),this.panner.panningModel="HRTF",this.panner.connect(this.gain)}getOutput(){return this.panner}getRefDistance(){return this.panner.refDistance}setRefDistance(t){return this.panner.refDistance=t,this}getRolloffFactor(){return this.panner.rolloffFactor}setRolloffFactor(t){return this.panner.rolloffFactor=t,this}getDistanceModel(){return this.panner.distanceModel}setDistanceModel(t){return this.panner.distanceModel=t,this}getMaxDistance(){return this.panner.maxDistance}setMaxDistance(t){return this.panner.maxDistance=t,this}setDirectionalCone(t,e,n){return this.panner.coneInnerAngle=t,this.panner.coneOuterAngle=e,this.panner.coneOuterGain=n,this}updateMatrixWorld(t){if(super.updateMatrixWorld(t),!0===this.hasPlaybackControl&&!1===this.isPlaying)return;this.matrixWorld.decompose(qm,Xm,Ym),Zm.set(0,0,1).applyQuaternion(Xm);const e=this.panner;if(e.positionX){const t=this.context.currentTime+this.listener.timeDelta;e.positionX.linearRampToValueAtTime(qm.x,t),e.positionY.linearRampToValueAtTime(qm.y,t),e.positionZ.linearRampToValueAtTime(qm.z,t),e.orientationX.linearRampToValueAtTime(Zm.x,t),e.orientationY.linearRampToValueAtTime(Zm.y,t),e.orientationZ.linearRampToValueAtTime(Zm.z,t)}else e.setPosition(qm.x,qm.y,qm.z),e.setOrientation(Zm.x,Zm.y,Zm.z)}}exports.PositionalAudio=Jm;class Qm{constructor(t,e=2048){this.analyser=t.context.createAnalyser(),this.analyser.fftSize=e,this.data=new Uint8Array(this.analyser.frequencyBinCount),t.getOutput().connect(this.analyser)}getFrequencyData(){return this.analyser.getByteFrequencyData(this.data),this.data}getAverageFrequency(){let t=0;const e=this.getFrequencyData();for(let n=0;n<e.length;n++)t+=e[n];return t/e.length}}exports.AudioAnalyser=Qm;class Km{constructor(t,e,n){let r,i,s;switch(this.binding=t,this.valueSize=n,e){case"quaternion":r=this._slerp,i=this._slerpAdditive,s=this._setAdditiveIdentityQuaternion,this.buffer=new Float64Array(6*n),this._workIndex=5;break;case"string":case"bool":r=this._select,i=this._select,s=this._setAdditiveIdentityOther,this.buffer=new Array(5*n);break;default:r=this._lerp,i=this._lerpAdditive,s=this._setAdditiveIdentityNumeric,this.buffer=new Float64Array(5*n)}this._mixBufferRegion=r,this._mixBufferRegionAdditive=i,this._setIdentity=s,this._origIndex=3,this._addIndex=4,this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,this.useCount=0,this.referenceCount=0}accumulate(t,e){const n=this.buffer,r=this.valueSize,i=t*r+r;let s=this.cumulativeWeight;if(0===s){for(let t=0;t!==r;++t)n[i+t]=n[t];s=e}else{const t=e/(s+=e);this._mixBufferRegion(n,i,0,t,r)}this.cumulativeWeight=s}accumulateAdditive(t){const e=this.buffer,n=this.valueSize,r=n*this._addIndex;0===this.cumulativeWeightAdditive&&this._setIdentity(),this._mixBufferRegionAdditive(e,r,0,t,n),this.cumulativeWeightAdditive+=t}apply(t){const e=this.valueSize,n=this.buffer,r=t*e+e,i=this.cumulativeWeight,s=this.cumulativeWeightAdditive,o=this.binding;if(this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,i<1){const t=e*this._origIndex;this._mixBufferRegion(n,r,t,1-i,e)}s>0&&this._mixBufferRegionAdditive(n,r,this._addIndex*e,1,e);for(let a=e,l=e+e;a!==l;++a)if(n[a]!==n[a+e]){o.setValue(n,r);break}}saveOriginalState(){const t=this.binding,e=this.buffer,n=this.valueSize,r=n*this._origIndex;t.getValue(e,r);for(let i=n,s=r;i!==s;++i)e[i]=e[r+i%n];this._setIdentity(),this.cumulativeWeight=0,this.cumulativeWeightAdditive=0}restoreOriginalState(){const t=3*this.valueSize;this.binding.setValue(this.buffer,t)}_setAdditiveIdentityNumeric(){const t=this._addIndex*this.valueSize,e=t+this.valueSize;for(let n=t;n<e;n++)this.buffer[n]=0}_setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric(),this.buffer[this._addIndex*this.valueSize+3]=1}_setAdditiveIdentityOther(){const t=this._origIndex*this.valueSize,e=this._addIndex*this.valueSize;for(let n=0;n<this.valueSize;n++)this.buffer[e+n]=this.buffer[t+n]}_select(t,e,n,r,i){if(r>=.5)for(let s=0;s!==i;++s)t[e+s]=t[n+s]}_slerp(t,e,n,r){Xn.slerpFlat(t,e,t,e,t,n,r)}_slerpAdditive(t,e,n,r,i){const s=this._workIndex*i;Xn.multiplyQuaternionsFlat(t,s,t,e,t,n),Xn.slerpFlat(t,e,t,e,t,s,r)}_lerp(t,e,n,r,i){const s=1-r;for(let o=0;o!==i;++o){const i=e+o;t[i]=t[i]*s+t[n+o]*r}}_lerpAdditive(t,e,n,r,i){for(let s=0;s!==i;++s){const i=e+s;t[i]=t[i]+t[n+s]*r}}}exports.PropertyMixer=Km;const $m="\\[\\]\\.:\\/",tf=new RegExp("[\\[\\]\\.:\\/]","g"),ef="[^\\[\\]\\.:\\/]",nf="[^"+"\\[\\]\\.:\\/".replace("\\.","")+"]",rf=/((?:WC+[\/:])*)/.source.replace("WC",ef),sf=/(WCOD+)?/.source.replace("WCOD",nf),of=/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC",ef),af=/\.(WC+)(?:\[(.+)\])?/.source.replace("WC",ef),lf=new RegExp("^"+rf+sf+of+af+"$"),cf=["material","materials","bones"];function hf(t,e,n){const r=n||uf.parseTrackName(e);this._targetGroup=t,this._bindings=t.subscribe_(e,r)}function uf(t,e,n){this.path=e,this.parsedPath=n||uf.parseTrackName(e),this.node=uf.findNode(t,this.parsedPath.nodeName)||t,this.rootNode=t}Object.assign(hf.prototype,{getValue:function(t,e){this.bind();const n=this._targetGroup.nCachedObjects_,r=this._bindings[n];void 0!==r&&r.getValue(t,e)},setValue:function(t,e){const n=this._bindings;for(let r=this._targetGroup.nCachedObjects_,i=n.length;r!==i;++r)n[r].setValue(t,e)},bind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].bind()},unbind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].unbind()}}),Object.assign(uf,{Composite:hf,create:function(t,e,n){return t&&t.isAnimationObjectGroup?new uf.Composite(t,e,n):new uf(t,e,n)},sanitizeNodeName:function(t){return t.replace(/\s/g,"_").replace(tf,"")},parseTrackName:function(t){const e=lf.exec(t);if(!e)throw new Error("PropertyBinding: Cannot parse trackName: "+t);const n={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},r=n.nodeName&&n.nodeName.lastIndexOf(".");if(void 0!==r&&-1!==r){const t=n.nodeName.substring(r+1);-1!==cf.indexOf(t)&&(n.nodeName=n.nodeName.substring(0,r),n.objectName=t)}if(null===n.propertyName||0===n.propertyName.length)throw new Error("PropertyBinding: can not parse propertyName from trackName: "+t);return n},findNode:function(t,e){if(!e||""===e||"."===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){const n=t.skeleton.getBoneByName(e);if(void 0!==n)return n}if(t.children){const n=function(t){for(let r=0;r<t.length;r++){const i=t[r];if(i.name===e||i.uuid===e)return i;const s=n(i.children);if(s)return s}return null},r=n(t.children);if(r)return r}return null}}),Object.assign(uf.prototype,{_getValue_unavailable:function(){},_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(t,e){t[e]=this.node[this.propertyName]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)t[e++]=n[r]},function(t,e){t[e]=this.resolvedProperty[this.propertyIndex]},function(t,e){this.resolvedProperty.toArray(t,e)}],SetterByBindingTypeAndVersioning:[[function(t,e){this.targetObject[this.propertyName]=t[e]},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.needsUpdate=!0},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty[this.propertyIndex]=t[e]},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty.fromArray(t,e)},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}]],getValue:function(t,e){this.bind(),this.getValue(t,e)},setValue:function(t,e){this.bind(),this.setValue(t,e)},bind:function(){let t=this.node;const e=this.parsedPath,n=e.objectName,r=e.propertyName;let i=e.propertyIndex;if(t||(t=uf.findNode(this.rootNode,e.nodeName)||this.rootNode,this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.error("THREE.PropertyBinding: Trying to update node for track: "+this.path+" but it wasn't found.");if(n){let r=e.objectIndex;switch(n){case"materials":if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.materials)return void console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);t=t.material.materials;break;case"bones":if(!t.skeleton)return void console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);t=t.skeleton.bones;for(let e=0;e<t.length;e++)if(t[e].name===r){r=e;break}break;default:if(void 0===t[n])return void console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",this);t=t[n]}if(void 0!==r){if(void 0===t[r])return void console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,t);t=t[r]}}const s=t[r];if(void 0===s){const n=e.nodeName;return void console.error("THREE.PropertyBinding: Trying to update property for track: "+n+"."+r+" but it wasn't found.",t)}let o=this.Versioning.None;this.targetObject=t,void 0!==t.needsUpdate?o=this.Versioning.NeedsUpdate:void 0!==t.matrixWorldNeedsUpdate&&(o=this.Versioning.MatrixWorldNeedsUpdate);let a=this.BindingType.Direct;if(void 0!==i){if("morphTargetInfluences"===r){if(!t.geometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);if(!t.geometry.isBufferGeometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.",this);if(!t.geometry.morphAttributes)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);void 0!==t.morphTargetDictionary[i]&&(i=t.morphTargetDictionary[i])}a=this.BindingType.ArrayElement,this.resolvedProperty=s,this.propertyIndex=i}else void 0!==s.fromArray&&void 0!==s.toArray?(a=this.BindingType.HasFromToArray,this.resolvedProperty=s):Array.isArray(s)?(a=this.BindingType.EntireArray,this.resolvedProperty=s):this.propertyName=r;this.getValue=this.GetterByBindingType[a],this.setValue=this.SetterByBindingTypeAndVersioning[a][o]},unbind:function(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}),Object.assign(uf.prototype,{_getValue_unbound:uf.prototype.getValue,_setValue_unbound:uf.prototype.setValue});class pf{constructor(){this.uuid=Fn.generateUUID(),this._objects=Array.prototype.slice.call(arguments),this.nCachedObjects_=0;const t={};this._indicesByUUID=t;for(let n=0,r=arguments.length;n!==r;++n)t[arguments[n].uuid]=n;this._paths=[],this._parsedPaths=[],this._bindings=[],this._bindingsIndicesByPath={};const e=this;this.stats={objects:{get total(){return e._objects.length},get inUse(){return this.total-e.nCachedObjects_}},get bindingsPerObject(){return e._bindings.length}}}add(){const t=this._objects,e=this._indicesByUUID,n=this._paths,r=this._parsedPaths,i=this._bindings,s=i.length;let o=void 0,a=t.length,l=this.nCachedObjects_;for(let c=0,h=arguments.length;c!==h;++c){const h=arguments[c],u=h.uuid;let p=e[u];if(void 0===p){p=a++,e[u]=p,t.push(h);for(let t=0,e=s;t!==e;++t)i[t].push(new uf(h,n[t],r[t]))}else if(p<l){o=t[p];const a=--l,c=t[a];e[c.uuid]=p,t[p]=c,e[u]=a,t[a]=h;for(let t=0,e=s;t!==e;++t){const e=i[t],s=e[a];let o=e[p];e[p]=s,void 0===o&&(o=new uf(h,n[t],r[t])),e[a]=o}}else t[p]!==o&&console.error("THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.")}this.nCachedObjects_=l}remove(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_;for(let s=0,o=arguments.length;s!==o;++s){const o=arguments[s],a=o.uuid,l=e[a];if(void 0!==l&&l>=i){const s=i++,c=t[s];e[c.uuid]=l,t[l]=c,e[a]=s,t[s]=o;for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[s],i=e[l];e[l]=r,e[s]=i}}}this.nCachedObjects_=i}uncache(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_,s=t.length;for(let o=0,a=arguments.length;o!==a;++o){const a=arguments[o].uuid,l=e[a];if(void 0!==l)if(delete e[a],l<i){const o=--i,a=t[o],c=--s,h=t[c];e[a.uuid]=l,t[l]=a,e[h.uuid]=o,t[o]=h,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[o],i=e[c];e[l]=r,e[o]=i,e.pop()}}else{const i=--s,o=t[i];i>0&&(e[o.uuid]=l),t[l]=o,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t];e[l]=e[i],e.pop()}}}this.nCachedObjects_=i}subscribe_(t,e){const n=this._bindingsIndicesByPath;let r=n[t];const i=this._bindings;if(void 0!==r)return i[r];const s=this._paths,o=this._parsedPaths,a=this._objects,l=a.length,c=this.nCachedObjects_,h=new Array(l);r=i.length,n[t]=r,s.push(t),o.push(e),i.push(h);for(let u=c,p=a.length;u!==p;++u){const n=a[u];h[u]=new uf(n,t,e)}return h}unsubscribe_(t){const e=this._bindingsIndicesByPath,n=e[t];if(void 0!==n){const r=this._paths,i=this._parsedPaths,s=this._bindings,o=s.length-1,a=s[o];e[t[o]]=n,s[n]=a,s.pop(),i[n]=i[o],i.pop(),r[n]=r[o],r.pop()}}}exports.AnimationObjectGroup=pf,pf.prototype.isAnimationObjectGroup=!0;class df{constructor(t,e,n=null,r=e.blendMode){this._mixer=t,this._clip=e,this._localRoot=n,this.blendMode=r;const i=e.tracks,s=i.length,o=new Array(s),a={endingStart:Ge,endingEnd:Ge};for(let l=0;l!==s;++l){const t=i[l].createInterpolant(null);o[l]=t,t.settings=a}this._interpolantSettings=a,this._interpolants=o,this._propertyBindings=new Array(s),this._cacheIndex=null,this._byClipCacheIndex=null,this._timeScaleInterpolant=null,this._weightInterpolant=null,this.loop=Be,this._loopCount=-1,this._startTime=null,this.time=0,this.timeScale=1,this._effectiveTimeScale=1,this.weight=1,this._effectiveWeight=1,this.repetitions=1/0,this.paused=!1,this.enabled=!0,this.clampWhenFinished=!1,this.zeroSlopeAtStart=!0,this.zeroSlopeAtEnd=!0}play(){return this._mixer._activateAction(this),this}stop(){return this._mixer._deactivateAction(this),this.reset()}reset(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()}isRunning(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)}isScheduled(){return this._mixer._isActiveAction(this)}startAt(t){return this._startTime=t,this}setLoop(t,e){return this.loop=t,this.repetitions=e,this}setEffectiveWeight(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()}getEffectiveWeight(){return this._effectiveWeight}fadeIn(t){return this._scheduleFading(t,0,1)}fadeOut(t){return this._scheduleFading(t,1,0)}crossFadeFrom(t,e,n){if(t.fadeOut(e),this.fadeIn(e),n){const n=this._clip.duration,r=t._clip.duration,i=r/n,s=n/r;t.warp(1,i,e),this.warp(s,1,e)}return this}crossFadeTo(t,e,n){return t.crossFadeFrom(this,e,n)}stopFading(){const t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}setEffectiveTimeScale(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()}getEffectiveTimeScale(){return this._effectiveTimeScale}setDuration(t){return this.timeScale=this._clip.duration/t,this.stopWarping()}syncWith(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()}halt(t){return this.warp(this._effectiveTimeScale,0,t)}warp(t,e,n){const r=this._mixer,i=r.time,s=this.timeScale;let o=this._timeScaleInterpolant;null===o&&(o=r._lendControlInterpolant(),this._timeScaleInterpolant=o);const a=o.parameterPositions,l=o.sampleValues;return a[0]=i,a[1]=i+n,l[0]=t/s,l[1]=e/s,this}stopWarping(){const t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}getMixer(){return this._mixer}getClip(){return this._clip}getRoot(){return this._localRoot||this._mixer._root}_update(t,e,n,r){if(!this.enabled)return void this._updateWeight(t);const i=this._startTime;if(null!==i){const r=(t-i)*n;if(r<0||0===n)return;this._startTime=null,e=n*r}e*=this._updateTimeScale(t);const s=this._updateTime(e),o=this._updateWeight(t);if(o>0){const t=this._interpolants,e=this._propertyBindings;switch(this.blendMode){case Ve:for(let n=0,r=t.length;n!==r;++n)t[n].evaluate(s),e[n].accumulateAdditive(o);break;case ke:default:for(let n=0,i=t.length;n!==i;++n)t[n].evaluate(s),e[n].accumulate(r,o)}}}_updateWeight(t){let e=0;if(this.enabled){e=this.weight;const n=this._weightInterpolant;if(null!==n){const r=n.evaluate(t)[0];e*=r,t>n.parameterPositions[1]&&(this.stopFading(),0===r&&(this.enabled=!1))}}return this._effectiveWeight=e,e}_updateTimeScale(t){let e=0;if(!this.paused){e=this.timeScale;const n=this._timeScaleInterpolant;if(null!==n){e*=n.evaluate(t)[0],t>n.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e}_updateTime(t){const e=this._clip.duration,n=this.loop;let r=this.time+t,i=this._loopCount;const s=n===Ne;if(0===t)return-1===i?r:s&&1==(1&i)?e-r:r;if(n===Ie){-1===i&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(r>=e)r=e;else{if(!(r<0)){this.time=r;break t}r=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t<0?-1:1})}}else{if(-1===i&&(t>=0?(i=0,this._setEndings(!0,0===this.repetitions,s)):this._setEndings(0===this.repetitions,!0,s)),r>=e||r<0){const n=Math.floor(r/e);r-=e*n,i+=Math.abs(n);const o=this.repetitions-i;if(o<=0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,r=t>0?e:0,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t>0?1:-1});else{if(1===o){const e=t<0;this._setEndings(e,!e,s)}else this._setEndings(!1,!1,s);this._loopCount=i,this.time=r,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:n})}}else this.time=r;if(s&&1==(1&i))return e-r}return r}_setEndings(t,e,n){const r=this._interpolantSettings;n?(r.endingStart=He,r.endingEnd=He):(r.endingStart=t?this.zeroSlopeAtStart?He:Ge:Ue,r.endingEnd=e?this.zeroSlopeAtEnd?He:Ge:Ue)}_scheduleFading(t,e,n){const r=this._mixer,i=r.time;let s=this._weightInterpolant;null===s&&(s=r._lendControlInterpolant(),this._weightInterpolant=s);const o=s.parameterPositions,a=s.sampleValues;return o[0]=i,a[0]=e,o[1]=i+t,a[1]=n,this}}class mf extends In{constructor(t){super(),this._root=t,this._initMemoryManager(),this._accuIndex=0,this.time=0,this.timeScale=1}_bindAction(t,e){const n=t._localRoot||this._root,r=t._clip.tracks,i=r.length,s=t._propertyBindings,o=t._interpolants,a=n.uuid,l=this._bindingsByRootAndName;let c=l[a];void 0===c&&(c={},l[a]=c);for(let h=0;h!==i;++h){const t=r[h],i=t.name;let l=c[i];if(void 0!==l)s[h]=l;else{if(void 0!==(l=s[h])){null===l._cacheIndex&&(++l.referenceCount,this._addInactiveBinding(l,a,i));continue}const r=e&&e._propertyBindings[h].binding.parsedPath;++(l=new Km(uf.create(n,i,r),t.ValueTypeName,t.getValueSize())).referenceCount,this._addInactiveBinding(l,a,i),s[h]=l}o[h].resultBuffer=l.buffer}}_activateAction(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){const e=(t._localRoot||this._root).uuid,n=t._clip.uuid,r=this._actionsByClip[n];this._bindAction(t,r&&r.knownActions[0]),this._addInactiveAction(t,n,e)}const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==n.useCount++&&(this._lendBinding(n),n.saveOriginalState())}this._lendAction(t)}}_deactivateAction(t){if(this._isActiveAction(t)){const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==--n.useCount&&(n.restoreOriginalState(),this._takeBackBinding(n))}this._takeBackAction(t)}}_initMemoryManager(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;const t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}}_isActiveAction(t){const e=t._cacheIndex;return null!==e&&e<this._nActiveActions}_addInactiveAction(t,e,n){const r=this._actions,i=this._actionsByClip;let s=i[e];if(void 0===s)s={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,i[e]=s;else{const e=s.knownActions;t._byClipCacheIndex=e.length,e.push(t)}t._cacheIndex=r.length,r.push(t),s.actionByRoot[n]=t}_removeInactiveAction(t){const e=this._actions,n=e[e.length-1],r=t._cacheIndex;n._cacheIndex=r,e[r]=n,e.pop(),t._cacheIndex=null;const i=t._clip.uuid,s=this._actionsByClip,o=s[i],a=o.knownActions,l=a[a.length-1],c=t._byClipCacheIndex;l._byClipCacheIndex=c,a[c]=l,a.pop(),t._byClipCacheIndex=null,delete o.actionByRoot[(t._localRoot||this._root).uuid],0===a.length&&delete s[i],this._removeInactiveBindingsForAction(t)}_removeInactiveBindingsForAction(t){const e=t._propertyBindings;for(let n=0,r=e.length;n!==r;++n){const t=e[n];0==--t.referenceCount&&this._removeInactiveBinding(t)}}_lendAction(t){const e=this._actions,n=t._cacheIndex,r=this._nActiveActions++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackAction(t){const e=this._actions,n=t._cacheIndex,r=--this._nActiveActions,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_addInactiveBinding(t,e,n){const r=this._bindingsByRootAndName,i=this._bindings;let s=r[e];void 0===s&&(s={},r[e]=s),s[n]=t,t._cacheIndex=i.length,i.push(t)}_removeInactiveBinding(t){const e=this._bindings,n=t.binding,r=n.rootNode.uuid,i=n.path,s=this._bindingsByRootAndName,o=s[r],a=e[e.length-1],l=t._cacheIndex;a._cacheIndex=l,e[l]=a,e.pop(),delete o[i],0===Object.keys(o).length&&delete s[r]}_lendBinding(t){const e=this._bindings,n=t._cacheIndex,r=this._nActiveBindings++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackBinding(t){const e=this._bindings,n=t._cacheIndex,r=--this._nActiveBindings,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_lendControlInterpolant(){const t=this._controlInterpolants,e=this._nActiveControlInterpolants++;let n=t[e];return void 0===n&&((n=new Yp(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer)).__cacheIndex=e,t[e]=n),n}_takeBackControlInterpolant(t){const e=this._controlInterpolants,n=t.__cacheIndex,r=--this._nActiveControlInterpolants,i=e[r];t.__cacheIndex=r,e[r]=t,i.__cacheIndex=n,e[n]=i}clipAction(t,e,n){const r=e||this._root,i=r.uuid;let s="string"==typeof t?id.findByName(r,t):t;const o=null!==s?s.uuid:t,a=this._actionsByClip[o];let l=null;if(void 0===n&&(n=null!==s?s.blendMode:ke),void 0!==a){const t=a.actionByRoot[i];if(void 0!==t&&t.blendMode===n)return t;l=a.knownActions[0],null===s&&(s=l._clip)}if(null===s)return null;const c=new df(this,s,e,n);return this._bindAction(c,l),this._addInactiveAction(c,o,i),c}existingAction(t,e){const n=e||this._root,r=n.uuid,i="string"==typeof t?id.findByName(n,t):t,s=i?i.uuid:t,o=this._actionsByClip[s];return void 0!==o&&o.actionByRoot[r]||null}stopAllAction(){const t=this._actions;for(let e=this._nActiveActions-1;e>=0;--e)t[e].stop();return this}update(t){t*=this.timeScale;const e=this._actions,n=this._nActiveActions,r=this.time+=t,i=Math.sign(t),s=this._accuIndex^=1;for(let l=0;l!==n;++l){e[l]._update(r,t,i,s)}const o=this._bindings,a=this._nActiveBindings;for(let l=0;l!==a;++l)o[l].apply(s);return this}setTime(t){this.time=0;for(let e=0;e<this._actions.length;e++)this._actions[e].time=0;return this.update(t)}getRoot(){return this._root}uncacheClip(t){const e=this._actions,n=t.uuid,r=this._actionsByClip,i=r[n];if(void 0!==i){const t=i.knownActions;for(let n=0,r=t.length;n!==r;++n){const r=t[n];this._deactivateAction(r);const i=r._cacheIndex,s=e[e.length-1];r._cacheIndex=null,r._byClipCacheIndex=null,s._cacheIndex=i,e[i]=s,e.pop(),this._removeInactiveBindingsForAction(r)}delete r[n]}}uncacheRoot(t){const e=t.uuid,n=this._actionsByClip;for(const i in n){const t=n[i].actionByRoot[e];void 0!==t&&(this._deactivateAction(t),this._removeInactiveAction(t))}const r=this._bindingsByRootAndName[e];if(void 0!==r)for(const i in r){const t=r[i];t.restoreOriginalState(),this._removeInactiveBinding(t)}}uncacheAction(t,e){const n=this.existingAction(t,e);null!==n&&(this._deactivateAction(n),this._removeInactiveAction(n))}}exports.AnimationMixer=mf,mf.prototype._controlInterpolantsResultBuffer=new Float32Array(1);class ff{constructor(t){"string"==typeof t&&(console.warn("THREE.Uniform: Type parameter is no longer needed."),t=arguments[1]),this.value=t}clone(){return new ff(void 0===this.value.clone?this.value:this.value.clone())}}function gf(t,e,n){_h.call(this,t,e),this.meshPerAttribute=n||1}function xf(t,e,n,r,i){this.buffer=t,this.type=e,this.itemSize=n,this.elementSize=r,this.count=i,this.version=0}function vf(t,e,n=0,r=1/0){this.ray=new br(t,e),this.near=n,this.far=r,this.camera=null,this.layers=new Ir,this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}},Object.defineProperties(this.params,{PointCloud:{get:function(){return console.warn("THREE.Raycaster: params.PointCloud has been renamed to params.Points."),this.Points}}})}function yf(t,e){return t.distance-e.distance}function _f(t,e,n,r){if(t.layers.test(e.layers)&&t.raycast(e,n),!0===r){const r=t.children;for(let t=0,i=r.length;t<i;t++)_f(r[t],e,n,!0)}}exports.Uniform=ff,gf.prototype=Object.assign(Object.create(_h.prototype),{constructor:gf,isInstancedInterleavedBuffer:!0,copy:function(t){return _h.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},clone:function(t){const e=_h.prototype.clone.call(this,t);return e.meshPerAttribute=this.meshPerAttribute,e},toJSON:function(t){const e=_h.prototype.toJSON.call(this,t);return e.isInstancedInterleavedBuffer=!0,e.meshPerAttribute=this.meshPerAttribute,e}}),Object.defineProperty(xf.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(xf.prototype,{isGLBufferAttribute:!0,setBuffer:function(t){return this.buffer=t,this},setType:function(t,e){return this.type=t,this.elementSize=e,this},setItemSize:function(t){return this.itemSize=t,this},setCount:function(t){return this.count=t,this}}),Object.assign(vf.prototype,{set:function(t,e){this.ray.set(t,e)},setFromCamera:function(t,e){e&&e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize(),this.camera=e):e&&e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld),this.camera=e):console.error("THREE.Raycaster: Unsupported camera type: "+e.type)},intersectObject:function(t,e=!1,n=[]){return _f(t,this,n,e),n.sort(yf),n},intersectObjects:function(t,e=!1,n=[]){for(let r=0,i=t.length;r<i;r++)_f(t[r],this,n,e);return n.sort(yf),n}});class bf{constructor(t=1,e=0,n=0){return this.radius=t,this.phi=e,this.theta=n,this}set(t,e,n){return this.radius=t,this.phi=e,this.theta=n,this}copy(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this}makeSafe(){return this.phi=Math.max(1e-6,Math.min(Math.PI-1e-6,this.phi)),this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+e*e+n*n),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t,n),this.phi=Math.acos(Fn.clamp(e/this.radius,-1,1))),this}clone(){return(new this.constructor).copy(this)}}exports.Spherical=bf;class wf{constructor(t=1,e=0,n=0){return this.radius=t,this.theta=e,this.y=n,this}set(t,e,n){return this.radius=t,this.theta=e,this.y=n,this}copy(t){return this.radius=t.radius,this.theta=t.theta,this.y=t.y,this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+n*n),this.theta=Math.atan2(t,n),this.y=e,this}clone(){return(new this.constructor).copy(this)}}exports.Cylindrical=wf;const Mf=new On;class Sf{constructor(t=new On(1/0,1/0),e=new On(-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=Mf.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=1/0,this.max.x=this.max.y=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y}getCenter(t){return void 0===t&&(console.warn("THREE.Box2: .getCenter() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box2: .getSize() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box2: .getParameter() target is now required"),e=new On),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y)}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box2: .clampPoint() target is now required"),e=new On),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return Mf.copy(t).clamp(this.min,this.max).sub(t).length()}intersect(t){return this.min.max(t.min),this.max.min(t.max),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box2=Sf,Sf.prototype.isBox2=!0;const Tf=new Yn,Ef=new Yn;class Af{constructor(t=new Yn,e=new Yn){this.start=t,this.end=e}set(t,e){return this.start.copy(t),this.end.copy(e),this}copy(t){return this.start.copy(t.start),this.end.copy(t.end),this}getCenter(t){return void 0===t&&(console.warn("THREE.Line3: .getCenter() target is now required"),t=new Yn),t.addVectors(this.start,this.end).multiplyScalar(.5)}delta(t){return void 0===t&&(console.warn("THREE.Line3: .delta() target is now required"),t=new Yn),t.subVectors(this.end,this.start)}distanceSq(){return this.start.distanceToSquared(this.end)}distance(){return this.start.distanceTo(this.end)}at(t,e){return void 0===e&&(console.warn("THREE.Line3: .at() target is now required"),e=new Yn),this.delta(e).multiplyScalar(t).add(this.start)}closestPointToPointParameter(t,e){Tf.subVectors(t,this.start),Ef.subVectors(this.end,this.start);const n=Ef.dot(Ef);let r=Ef.dot(Tf)/n;return e&&(r=Fn.clamp(r,0,1)),r}closestPointToPoint(t,e,n){const r=this.closestPointToPointParameter(t,e);return void 0===n&&(console.warn("THREE.Line3: .closestPointToPoint() target is now required"),n=new Yn),this.delta(n).multiplyScalar(r).add(this.start)}applyMatrix4(t){return this.start.applyMatrix4(t),this.end.applyMatrix4(t),this}equals(t){return t.start.equals(this.start)&&t.end.equals(this.end)}clone(){return(new this.constructor).copy(this)}}function Lf(t){Xr.call(this),this.material=t,this.render=function(){},this.hasPositions=!1,this.hasNormals=!1,this.hasColors=!1,this.hasUvs=!1,this.positionArray=null,this.normalArray=null,this.colorArray=null,this.uvArray=null,this.count=0}exports.Line3=Af,Lf.prototype=Object.create(Xr.prototype),Lf.prototype.constructor=Lf,Lf.prototype.isImmediateRenderObject=!0;const Rf=new Yn;class Cf extends Xr{constructor(t,e){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=e;const n=new ki,r=[0,0,0,0,0,1,0,0,0,1,0,1,0,0,0,-1,0,1,0,0,0,0,1,1,0,0,0,0,-1,1];for(let s=0,o=1,a=32;s<a;s++,o++){const t=s/a*Math.PI*2,e=o/a*Math.PI*2;r.push(Math.cos(t),Math.sin(t),1,Math.cos(e),Math.sin(e),1)}n.setAttribute("position",new Ci(r,3));const i=new ru({fog:!1,toneMapped:!1});this.cone=new pu(n,i),this.add(this.cone),this.update()}dispose(){this.cone.geometry.dispose(),this.cone.material.dispose()}update(){this.light.updateMatrixWorld();const t=this.light.distance?this.light.distance:1e3,e=t*Math.tan(this.light.angle);this.cone.scale.set(e,e,t),Rf.setFromMatrixPosition(this.light.target.matrixWorld),this.cone.lookAt(Rf),void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}exports.SpotLightHelper=Cf;const Pf=new Yn,Df=new wr,If=new wr;class Bf extends pu{constructor(t){const e=Nf(t),n=new ki,r=[],i=[],s=new xi(0,0,1),o=new xi(0,1,0);for(let a=0;a<e.length;a++){const t=e[a];t.parent&&t.parent.isBone&&(r.push(0,0,0),r.push(0,0,0),i.push(s.r,s.g,s.b),i.push(o.r,o.g,o.b))}n.setAttribute("position",new Ci(r,3)),n.setAttribute("color",new Ci(i,3)),super(n,new ru({vertexColors:!0,depthTest:!1,depthWrite:!1,toneMapped:!1,transparent:!0})),this.type="SkeletonHelper",this.isSkeletonHelper=!0,this.root=t,this.bones=e,this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1}updateMatrixWorld(t){const e=this.bones,n=this.geometry,r=n.getAttribute("position");If.copy(this.root.matrixWorld).invert();for(let i=0,s=0;i<e.length;i++){const t=e[i];t.parent&&t.parent.isBone&&(Df.multiplyMatrices(If,t.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s,Pf.x,Pf.y,Pf.z),Df.multiplyMatrices(If,t.parent.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s+1,Pf.x,Pf.y,Pf.z),s+=2)}n.getAttribute("position").needsUpdate=!0,super.updateMatrixWorld(t)}}function Nf(t){const e=[];t&&t.isBone&&e.push(t);for(let n=0;n<t.children.length;n++)e.push.apply(e,Nf(t.children[n]));return e}exports.SkeletonHelper=Bf;class Ff extends os{constructor(t,e,n){super(new Ep(e,4,2),new vi({wireframe:!0,fog:!1,toneMapped:!1})),this.light=t,this.light.updateMatrixWorld(),this.color=n,this.type="PointLightHelper",this.matrix=this.light.matrixWorld,this.matrixAutoUpdate=!1,this.update()}dispose(){this.geometry.dispose(),this.material.dispose()}update(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)}}exports.PointLightHelper=Ff;const Of=new Yn,zf=new xi,Gf=new xi;class Hf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n;const r=new bp(e);r.rotateY(.5*Math.PI),this.material=new vi({wireframe:!0,fog:!1,toneMapped:!1}),void 0===this.color&&(this.material.vertexColors=!0);const i=r.getAttribute("position"),s=new Float32Array(3*i.count);r.setAttribute("color",new bi(s,3)),this.add(new os(r,this.material)),this.update()}dispose(){this.children[0].geometry.dispose(),this.children[0].material.dispose()}update(){const t=this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{const e=t.geometry.getAttribute("color");zf.copy(this.light.color),Gf.copy(this.light.groundColor);for(let t=0,n=e.count;t<n;t++){const r=t<n/2?zf:Gf;e.setXYZ(t,r.r,r.g,r.b)}e.needsUpdate=!0}t.lookAt(Of.setFromMatrixPosition(this.light.matrixWorld).negate())}}exports.HemisphereLightHelper=Hf;class Uf extends pu{constructor(t=10,e=10,n=4473924,r=8947848){n=new xi(n),r=new xi(r);const i=e/2,s=t/e,o=t/2,a=[],l=[];for(let h=0,u=0,p=-o;h<=e;h++,p+=s){a.push(-o,0,p,o,0,p),a.push(p,0,-o,p,0,o);const t=h===i?n:r;t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3}const c=new ki;c.setAttribute("position",new Ci(a,3)),c.setAttribute("color",new Ci(l,3)),super(c,new ru({vertexColors:!0,toneMapped:!1})),this.type="GridHelper"}}exports.GridHelper=Uf;class kf extends pu{constructor(t=10,e=16,n=8,r=64,i=4473924,s=8947848){i=new xi(i),s=new xi(s);const o=[],a=[];for(let c=0;c<=e;c++){const n=c/e*(2*Math.PI),r=Math.sin(n)*t,l=Math.cos(n)*t;o.push(0,0,0),o.push(r,0,l);const h=1&c?i:s;a.push(h.r,h.g,h.b),a.push(h.r,h.g,h.b)}for(let c=0;c<=n;c++){const e=1&c?i:s,l=t-t/n*c;for(let t=0;t<r;t++){let n=t/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l;o.push(i,0,s),a.push(e.r,e.g,e.b),n=(t+1)/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l,o.push(i,0,s),a.push(e.r,e.g,e.b)}}const l=new ki;l.setAttribute("position",new Ci(o,3)),l.setAttribute("color",new Ci(a,3)),super(l,new ru({vertexColors:!0,toneMapped:!1})),this.type="PolarGridHelper"}}exports.PolarGridHelper=kf;const Vf=new Yn,Wf=new Yn,jf=new Yn;class qf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n,void 0===e&&(e=1);let r=new ki;r.setAttribute("position",new Ci([-e,e,0,e,e,0,e,-e,0,-e,-e,0,-e,e,0],3));const i=new ru({fog:!1,toneMapped:!1});this.lightPlane=new cu(r,i),this.add(this.lightPlane),(r=new ki).setAttribute("position",new Ci([0,0,0,0,0,1],3)),this.targetLine=new cu(r,i),this.add(this.targetLine),this.update()}dispose(){this.lightPlane.geometry.dispose(),this.lightPlane.material.dispose(),this.targetLine.geometry.dispose(),this.targetLine.material.dispose()}update(){Vf.setFromMatrixPosition(this.light.matrixWorld),Wf.setFromMatrixPosition(this.light.target.matrixWorld),jf.subVectors(Wf,Vf),this.lightPlane.lookAt(Wf),void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color)),this.targetLine.lookAt(Wf),this.targetLine.scale.z=jf.length()}}exports.DirectionalLightHelper=qf;const Xf=new Yn,Yf=new gs;class Zf extends pu{constructor(t){const e=new ki,n=new ru({color:16777215,vertexColors:!0,toneMapped:!1}),r=[],i=[],s={},o=new xi(16755200),a=new xi(16711680),l=new xi(43775),c=new xi(16777215),h=new xi(3355443);function u(t,e,n){p(t,n),p(e,n)}function p(t,e){r.push(0,0,0),i.push(e.r,e.g,e.b),void 0===s[t]&&(s[t]=[]),s[t].push(r.length/3-1)}u("n1","n2",o),u("n2","n4",o),u("n4","n3",o),u("n3","n1",o),u("f1","f2",o),u("f2","f4",o),u("f4","f3",o),u("f3","f1",o),u("n1","f1",o),u("n2","f2",o),u("n3","f3",o),u("n4","f4",o),u("p","n1",a),u("p","n2",a),u("p","n3",a),u("p","n4",a),u("u1","u2",l),u("u2","u3",l),u("u3","u1",l),u("c","t",c),u("p","c",h),u("cn1","cn2",h),u("cn3","cn4",h),u("cf1","cf2",h),u("cf3","cf4",h),e.setAttribute("position",new Ci(r,3)),e.setAttribute("color",new Ci(i,3)),super(e,n),this.type="CameraHelper",this.camera=t,this.camera.updateProjectionMatrix&&this.camera.updateProjectionMatrix(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.pointMap=s,this.update()}update(){const t=this.geometry,e=this.pointMap;Yf.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse),Jf("c",e,t,Yf,0,0,-1),Jf("t",e,t,Yf,0,0,1),Jf("n1",e,t,Yf,-1,-1,-1),Jf("n2",e,t,Yf,1,-1,-1),Jf("n3",e,t,Yf,-1,1,-1),Jf("n4",e,t,Yf,1,1,-1),Jf("f1",e,t,Yf,-1,-1,1),Jf("f2",e,t,Yf,1,-1,1),Jf("f3",e,t,Yf,-1,1,1),Jf("f4",e,t,Yf,1,1,1),Jf("u1",e,t,Yf,.7,1.1,-1),Jf("u2",e,t,Yf,-.7,1.1,-1),Jf("u3",e,t,Yf,0,2,-1),Jf("cf1",e,t,Yf,-1,0,1),Jf("cf2",e,t,Yf,1,0,1),Jf("cf3",e,t,Yf,0,-1,1),Jf("cf4",e,t,Yf,0,1,1),Jf("cn1",e,t,Yf,-1,0,-1),Jf("cn2",e,t,Yf,1,0,-1),Jf("cn3",e,t,Yf,0,-1,-1),Jf("cn4",e,t,Yf,0,1,-1),t.getAttribute("position").needsUpdate=!0}}function Jf(t,e,n,r,i,s,o){Xf.set(i,s,o).unproject(r);const a=e[t];if(void 0!==a){const t=n.getAttribute("position");for(let e=0,n=a.length;e<n;e++)t.setXYZ(a[e],Xf.x,Xf.y,Xf.z)}}exports.CameraHelper=Zf;const Qf=new Qn;class Kf extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new Float32Array(24),i=new ki;i.setIndex(new bi(n,1)),i.setAttribute("position",new bi(r,3)),super(i,new ru({color:e,toneMapped:!1})),this.object=t,this.type="BoxHelper",this.matrixAutoUpdate=!1,this.update()}update(t){if(void 0!==t&&console.warn("THREE.BoxHelper: .update() has no longer arguments."),void 0!==this.object&&Qf.setFromObject(this.object),Qf.isEmpty())return;const e=Qf.min,n=Qf.max,r=this.geometry.attributes.position,i=r.array;i[0]=n.x,i[1]=n.y,i[2]=n.z,i[3]=e.x,i[4]=n.y,i[5]=n.z,i[6]=e.x,i[7]=e.y,i[8]=n.z,i[9]=n.x,i[10]=e.y,i[11]=n.z,i[12]=n.x,i[13]=n.y,i[14]=e.z,i[15]=e.x,i[16]=n.y,i[17]=e.z,i[18]=e.x,i[19]=e.y,i[20]=e.z,i[21]=n.x,i[22]=e.y,i[23]=e.z,r.needsUpdate=!0,this.geometry.computeBoundingSphere()}setFromObject(t){return this.object=t,this.update(),this}copy(t){return pu.prototype.copy.call(this,t),this.object=t.object,this}}exports.BoxHelper=Kf;class $f extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new ki;r.setIndex(new bi(n,1)),r.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,-1,-1,1,-1,-1,-1,-1,1,-1,-1],3)),super(r,new ru({color:e,toneMapped:!1})),this.box=t,this.type="Box3Helper",this.geometry.computeBoundingSphere()}updateMatrixWorld(t){const e=this.box;e.isEmpty()||(e.getCenter(this.position),e.getSize(this.scale),this.scale.multiplyScalar(.5),super.updateMatrixWorld(t))}}exports.Box3Helper=$f;class tg extends cu{constructor(t,e=1,n=16776960){const r=n,i=new ki;i.setAttribute("position",new Ci([1,-1,1,-1,1,1,-1,-1,1,1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,1,0,0,1,0,0,0],3)),i.computeBoundingSphere(),super(i,new ru({color:r,toneMapped:!1})),this.type="PlaneHelper",this.plane=t,this.size=e;const s=new ki;s.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,1,1,-1,-1,1,1,-1,1],3)),s.computeBoundingSphere(),this.add(new os(s,new vi({color:r,opacity:.2,transparent:!0,depthWrite:!1,toneMapped:!1})))}updateMatrixWorld(t){let e=-this.plane.constant;Math.abs(e)<1e-8&&(e=1e-8),this.scale.set(.5*this.size,.5*this.size,e),this.children[0].material.side=e<0?p:u,this.lookAt(this.plane.normal),super.updateMatrixWorld(t)}}exports.PlaneHelper=tg;const eg=new Yn;let ng,rg;class ig extends Xr{constructor(t=new Yn(0,0,1),e=new Yn(0,0,0),n=1,r=16776960,i=.2*n,s=.2*i){super(),this.type="ArrowHelper",void 0===ng&&((ng=new ki).setAttribute("position",new Ci([0,0,0,0,1,0],3)),(rg=new Eu(0,.5,1,5,1)).translate(0,-.5,0)),this.position.copy(e),this.line=new cu(ng,new ru({color:r,toneMapped:!1})),this.line.matrixAutoUpdate=!1,this.add(this.line),this.cone=new os(rg,new vi({color:r,toneMapped:!1})),this.cone.matrixAutoUpdate=!1,this.add(this.cone),this.setDirection(t),this.setLength(n,i,s)}setDirection(t){if(t.y>.99999)this.quaternion.set(0,0,0,1);else if(t.y<-.99999)this.quaternion.set(1,0,0,0);else{eg.set(t.z,0,-t.x).normalize();const e=Math.acos(t.y);this.quaternion.setFromAxisAngle(eg,e)}}setLength(t,e=.2*t,n=.2*e){this.line.scale.set(1,Math.max(1e-4,t-e),1),this.line.updateMatrix(),this.cone.scale.set(n,e,n),this.cone.position.y=t,this.cone.updateMatrix()}setColor(t){this.line.material.color.set(t),this.cone.material.color.set(t)}copy(t){return super.copy(t,!1),this.line.copy(t.line),this.cone.copy(t.cone),this}}exports.ArrowHelper=ig;class sg extends pu{constructor(t=1){const e=[0,0,0,t,0,0,0,0,0,0,t,0,0,0,0,0,0,t],n=new ki;n.setAttribute("position",new Ci(e,3)),n.setAttribute("color",new Ci([1,0,0,1,.6,0,0,1,0,.6,1,0,0,0,1,0,.6,1],3)),super(n,new ru({vertexColors:!0,toneMapped:!1})),this.type="AxesHelper"}}exports.AxesHelper=sg;const og=new Float32Array(1),ag=new Int32Array(og.buffer),lg={toHalfFloat:function(t){og[0]=t;const e=ag[0];let n=e>>16&32768,r=e>>12&2047;const i=e>>23&255;return i<103?n:i>142?(n|=31744,n|=(255==i?0:1)&&8388607&e):i<113?n|=((r|=2048)>>114-i)+(r>>113-i&1):(n|=i-112<<10|r>>1,n+=1&r)}};exports.DataUtils=lg;const cg=4,hg=8,ug=Math.pow(2,hg),pg=[.125,.215,.35,.446,.526,.582],dg=hg-cg+1+pg.length,mg=20,fg={[Xe]:0,[Ye]:1,[Je]:2,[Ke]:3,[$e]:4,[tn]:5,[Ze]:6},gg=new vi({side:p,depthWrite:!1,depthTest:!1}),xg=new os(new cs,gg),vg=new lm,{_lodPlanes:yg,_sizeLods:_g,_sigmas:bg}=Cg(),wg=new xi;let Mg=null;const Sg=(1+Math.sqrt(5))/2,Tg=1/Sg,Eg=[new Yn(1,1,1),new Yn(-1,1,1),new Yn(1,1,-1),new Yn(-1,1,-1),new Yn(0,Sg,Tg),new Yn(0,Sg,-Tg),new Yn(Tg,0,Sg),new Yn(-Tg,0,Sg),new Yn(Sg,Tg,0),new Yn(-Sg,Tg,0)];function Ag(t){const e=Math.max(t.r,t.g,t.b),n=Math.min(Math.max(Math.ceil(Math.log2(e)),-128),127);return t.multiplyScalar(Math.pow(2,-n)),(n+128)/255}class Lg{constructor(t){this._renderer=t,this._pingPongRenderTarget=null,this._blurMaterial=Ig(mg),this._equirectShader=null,this._cubemapShader=null,this._compileMaterial(this._blurMaterial)}fromScene(t,e=0,n=.1,r=100){Mg=this._renderer.getRenderTarget();const i=this._allocateTargets();return this._sceneToCubeUV(t,n,r,i),e>0&&this._blur(i,0,0,e),this._applyPMREM(i),this._cleanup(i),i}fromEquirectangular(t){return this._fromTexture(t)}fromCubemap(t){return this._fromTexture(t)}compileCubemapShader(){null===this._cubemapShader&&(this._cubemapShader=Ng(),this._compileMaterial(this._cubemapShader))}compileEquirectangularShader(){null===this._equirectShader&&(this._equirectShader=Bg(),this._compileMaterial(this._equirectShader))}dispose(){this._blurMaterial.dispose(),null!==this._cubemapShader&&this._cubemapShader.dispose(),null!==this._equirectShader&&this._equirectShader.dispose();for(let t=0;t<yg.length;t++)yg[t].dispose()}_cleanup(t){this._pingPongRenderTarget.dispose(),this._renderer.setRenderTarget(Mg),t.scissorTest=!1,Dg(t,0,0,t.width,t.height)}_fromTexture(t){Mg=this._renderer.getRenderTarget();const e=this._allocateTargets(t);return this._textureToCubeUV(t,e),this._applyPMREM(e),this._cleanup(e),e}_allocateTargets(t){const e={magFilter:ut,minFilter:ut,generateMipmaps:!1,type:bt,format:zt,encoding:Rg(t)?t.encoding:Je,depthBuffer:!1},n=Pg(e);return n.depthBuffer=!t,this._pingPongRenderTarget=Pg(e),n}_compileMaterial(t){const e=new os(yg[0],t);this._renderer.compile(e,vg)}_sceneToCubeUV(t,e,n,r){const i=new xs(90,1,e,n),s=[1,-1,1,1,1,1],o=[1,1,1,-1,-1,-1],a=this._renderer,l=a.autoClear,c=a.outputEncoding,h=a.toneMapping;a.getClearColor(wg),a.toneMapping=Z,a.outputEncoding=Xe,a.autoClear=!1;let u=!1;const p=t.background;if(p){if(p.isColor){gg.color.copy(p).convertSRGBToLinear(),t.background=null;const e=Ag(gg.color);gg.opacity=e,u=!0}}else{gg.color.copy(wg).convertSRGBToLinear();const t=Ag(gg.color);gg.opacity=t,u=!0}for(let d=0;d<6;d++){const e=d%3;0==e?(i.up.set(0,s[d],0),i.lookAt(o[d],0,0)):1==e?(i.up.set(0,0,s[d]),i.lookAt(0,o[d],0)):(i.up.set(0,s[d],0),i.lookAt(0,0,o[d])),Dg(r,e*ug,d>2?ug:0,ug,ug),a.setRenderTarget(r),u&&a.render(xg,i),a.render(t,i)}a.toneMapping=h,a.outputEncoding=c,a.autoClear=l}_textureToCubeUV(t,e){const n=this._renderer;t.isCubeTexture?null==this._cubemapShader&&(this._cubemapShader=Ng()):null==this._equirectShader&&(this._equirectShader=Bg());const r=t.isCubeTexture?this._cubemapShader:this._equirectShader,i=new os(yg[0],r),s=r.uniforms;s.envMap.value=t,t.isCubeTexture||s.texelSize.value.set(1/t.image.width,1/t.image.height),s.inputEncoding.value=fg[t.encoding],s.outputEncoding.value=fg[e.texture.encoding],Dg(e,0,0,3*ug,2*ug),n.setRenderTarget(e),n.render(i,vg)}_applyPMREM(t){const e=this._renderer,n=e.autoClear;e.autoClear=!1;for(let r=1;r<dg;r++){const e=Math.sqrt(bg[r]*bg[r]-bg[r-1]*bg[r-1]),n=Eg[(r-1)%Eg.length];this._blur(t,r-1,r,e,n)}e.autoClear=n}_blur(t,e,n,r,i){const s=this._pingPongRenderTarget;this._halfBlur(t,s,e,n,r,"latitudinal",i),this._halfBlur(s,t,n,n,r,"longitudinal",i)}_halfBlur(t,e,n,r,i,s,o){const a=this._renderer,l=this._blurMaterial;"latitudinal"!==s&&"longitudinal"!==s&&console.error("blur direction must be either latitudinal or longitudinal!");const c=new os(yg[r],l),h=l.uniforms,u=_g[n]-1,p=isFinite(i)?Math.PI/(2*u):2*Math.PI/(2*mg-1),d=i/p,m=isFinite(i)?1+Math.floor(3*d):mg;m>mg&&console.warn(`sigmaRadians, ${i}, is too large and will clip, as it requested ${m} samples when the maximum is set to ${mg}`);const f=[];let g=0;for(let v=0;v<mg;++v){const t=v/d,e=Math.exp(-t*t/2);f.push(e),0==v?g+=e:v<m&&(g+=2*e)}for(let v=0;v<f.length;v++)f[v]=f[v]/g;h.envMap.value=t.texture,h.samples.value=m,h.weights.value=f,h.latitudinal.value="latitudinal"===s,o&&(h.poleAxis.value=o),h.dTheta.value=p,h.mipInt.value=hg-n,h.inputEncoding.value=fg[t.texture.encoding],h.outputEncoding.value=fg[t.texture.encoding];const x=_g[r];Dg(e,3*Math.max(0,ug-2*x),(0===r?0:2*ug)+2*x*(r>hg-cg?r-hg+cg:0),3*x,2*x),a.setRenderTarget(e),a.render(c,vg)}}function Rg(t){return void 0!==t&&t.type===bt&&(t.encoding===Xe||t.encoding===Ye||t.encoding===Ze)}function Cg(){const t=[],e=[],n=[];let r=hg;for(let i=0;i<dg;i++){const s=Math.pow(2,r);e.push(s);let o=1/s;i>hg-cg?o=pg[i-hg+cg-1]:0==i&&(o=0),n.push(o);const a=1/(s-1),l=-a/2,c=1+a/2,h=[l,l,c,l,c,c,l,l,c,c,l,c],u=6,p=6,d=3,m=2,f=1,g=new Float32Array(d*p*u),x=new Float32Array(m*p*u),v=new Float32Array(f*p*u);for(let t=0;t<u;t++){const e=t%3*2/3-1,n=t>2?0:-1,r=[e,n,0,e+2/3,n,0,e+2/3,n+1,0,e,n,0,e+2/3,n+1,0,e,n+1,0];g.set(r,d*p*t),x.set(h,m*p*t);const i=[t,t,t,t,t,t];v.set(i,f*p*t)}const y=new ki;y.setAttribute("position",new bi(g,d)),y.setAttribute("uv",new bi(x,m)),y.setAttribute("faceIndex",new bi(v,f)),t.push(y),r>cg&&r--}return{_lodPlanes:t,_sizeLods:e,_sigmas:n}}function Pg(t){const e=new jn(3*ug,3*ug,t);return e.texture.mapping=ot,e.texture.name="PMREM.cubeUv",e.scissorTest=!0,e}function Dg(t,e,n,r,i){t.viewport.set(e,n,r,i),t.scissor.set(e,n,r,i)}function Ig(t){const e=new Float32Array(t),n=new Yn(0,1,0);return new Np({name:"SphericalGaussianBlur",defines:{n:t},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:e},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:n},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t${Og()}\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include <cube_uv_reflection_fragment>\n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Bg(){const t=new On(1,1);return new Np({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null},texelSize:{value:t},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform vec2 texelSize;\n\n\t\t\t${Og()}\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tvec2 f = fract( uv / texelSize - 0.5 );\n\t\t\t\tuv -= f * texelSize;\n\t\t\t\tvec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x += texelSize.x;\n\t\t\t\tvec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.y += texelSize.y;\n\t\t\t\tvec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x -= texelSize.x;\n\t\t\t\tvec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\n\t\t\t\tvec3 tm = mix( tl, tr, f.x );\n\t\t\t\tvec3 bm = mix( bl, br, f.x );\n\t\t\t\tgl_FragColor.rgb = mix( tm, bm, f.y );\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Ng(){return new Np({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\t${Og()}\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Fg(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute vec3 position;\n\t\tattribute vec2 uv;\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Og(){return"\n\n\t\tuniform int inputEncoding;\n\t\tuniform int outputEncoding;\n\n\t\t#include <encodings_pars_fragment>\n\n\t\tvec4 inputTexelToLinear( vec4 value ) {\n\n\t\t\tif ( inputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( inputEncoding == 1 ) {\n\n\t\t\t\treturn sRGBToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 2 ) {\n\n\t\t\t\treturn RGBEToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 3 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 7.0 );\n\n\t\t\t} else if ( inputEncoding == 4 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 16.0 );\n\n\t\t\t} else if ( inputEncoding == 5 ) {\n\n\t\t\t\treturn RGBDToLinear( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn GammaToLinear( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 linearToOutputTexel( vec4 value ) {\n\n\t\t\tif ( outputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( outputEncoding == 1 ) {\n\n\t\t\t\treturn LinearTosRGB( value );\n\n\t\t\t} else if ( outputEncoding == 2 ) {\n\n\t\t\t\treturn LinearToRGBE( value );\n\n\t\t\t} else if ( outputEncoding == 3 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 7.0 );\n\n\t\t\t} else if ( outputEncoding == 4 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 16.0 );\n\n\t\t\t} else if ( outputEncoding == 5 ) {\n\n\t\t\t\treturn LinearToRGBD( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn LinearToGamma( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 envMapTexelToLinear( vec4 color ) {\n\n\t\t\treturn inputTexelToLinear( color );\n\n\t\t}\n\t"}exports.PMREMGenerator=Lg;const zg=0;exports.LineStrip=0;const Gg=1;exports.LinePieces=1;const Hg=0;exports.NoColors=0;const Ug=1;exports.FaceColors=1;const kg=2;function Vg(t){return console.warn("THREE.MeshFaceMaterial has been removed. Use an Array instead."),t}function Wg(t=[]){return console.warn("THREE.MultiMaterial has been removed. Use an Array instead."),t.isMultiMaterial=!0,t.materials=t,t.clone=function(){return t.slice()},t}function jg(t,e){return console.warn("THREE.PointCloud has been renamed to THREE.Points."),new yu(t,e)}function qg(t){return console.warn("THREE.Particle has been renamed to THREE.Sprite."),new Oh(t)}function Xg(t,e){return console.warn("THREE.ParticleSystem has been renamed to THREE.Points."),new yu(t,e)}function Yg(t){return console.warn("THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Zg(t){return console.warn("THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Jg(t){return console.warn("THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Qg(t,e,n){return console.warn("THREE.Vertex has been removed. Use THREE.Vector3 instead."),new Yn(t,e,n)}function Kg(t,e){return console.warn("THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead."),new bi(t,e).setUsage(Mn)}function $g(t,e){return console.warn("THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead."),new wi(t,e)}function tx(t,e){return console.warn("THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead."),new Mi(t,e)}function ex(t,e){return console.warn("THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead."),new Si(t,e)}function nx(t,e){return console.warn("THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead."),new Ti(t,e)}function rx(t,e){return console.warn("THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead."),new Ei(t,e)}function ix(t,e){return console.warn("THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead."),new Ai(t,e)}function sx(t,e){return console.warn("THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead."),new Li(t,e)}function ox(t,e){return console.warn("THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead."),new Ci(t,e)}function ax(t,e){return console.warn("THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead."),new Pi(t,e)}function lx(t){return console.warn("THREE.AxisHelper has been renamed to THREE.AxesHelper."),new sg(t)}function cx(t,e){return console.warn("THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead."),new Kf(t,e)}function hx(t,e){return console.warn("THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead."),new pu(new Bu(t.geometry),new ru({color:void 0!==e?e:16777215}))}function ux(t,e){return console.warn("THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead."),new pu(new Dp(t.geometry),new ru({color:void 0!==e?e:16777215}))}function px(t){return console.warn("THREE.XHRLoader has been renamed to THREE.FileLoader."),new pd(t)}function dx(t){return console.warn("THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader."),new xd(t)}function mx(t,e,n){return console.warn("THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options )."),new ws(t,n)}function fx(){console.error("THREE.CanvasRenderer has been removed")}function gx(){console.error("THREE.JSONLoader has been removed.")}exports.VertexColors=2,yd.create=function(t,e){return console.log("THREE.Curve.create() has been deprecated"),t.prototype=Object.create(yd.prototype),t.prototype.constructor=t,t.prototype.getPoint=e,t},Xd.prototype.fromPoints=function(t){return console.warn("THREE.Path: .fromPoints() has been renamed to .setFromPoints()."),this.setFromPoints(t)},Uf.prototype.setColors=function(){console.error("THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.")},Bf.prototype.update=function(){console.error("THREE.SkeletonHelper: update() no longer needs to be called.")},hd.prototype.extractUrlBase=function(t){return console.warn("THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead."),gm.extractUrlBase(t)},hd.Handlers={add:function(){console.error("THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.")},get:function(){console.error("THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.")}},Sf.prototype.center=function(t){return console.warn("THREE.Box2: .center() has been renamed to .getCenter()."),this.getCenter(t)},Sf.prototype.empty=function(){return console.warn("THREE.Box2: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Sf.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Sf.prototype.size=function(t){return console.warn("THREE.Box2: .size() has been renamed to .getSize()."),this.getSize(t)},Qn.prototype.center=function(t){return console.warn("THREE.Box3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Qn.prototype.empty=function(){return console.warn("THREE.Box3: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Qn.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Qn.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},Qn.prototype.size=function(t){return console.warn("THREE.Box3: .size() has been renamed to .getSize()."),this.getSize(t)},dr.prototype.empty=function(){return console.warn("THREE.Sphere: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Es.prototype.setFromMatrix=function(t){return console.warn("THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix()."),this.setFromProjectionMatrix(t)},Af.prototype.center=function(t){return console.warn("THREE.Line3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Fn.random16=function(){return console.warn("THREE.Math: .random16() has been deprecated. Use Math.random() instead."),Math.random()},Fn.nearestPowerOfTwo=function(t){return console.warn("THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo()."),Fn.floorPowerOfTwo(t)},Fn.nextPowerOfTwo=function(t){return console.warn("THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo()."),Fn.ceilPowerOfTwo(t)},zn.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},zn.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix3: .multiplyVector3Array() has been removed.")},zn.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.applyToVector3Array=function(){console.error("THREE.Matrix3: .applyToVector3Array() has been removed.")},zn.prototype.getInverse=function(t){return console.warn("THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},wr.prototype.extractPosition=function(t){return console.warn("THREE.Matrix4: .extractPosition() has been renamed to .copyPosition()."),this.copyPosition(t)},wr.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},wr.prototype.getPosition=function(){return console.warn("THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead."),(new Yn).setFromMatrixColumn(this,3)},wr.prototype.setRotationFromQuaternion=function(t){return console.warn("THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion()."),this.makeRotationFromQuaternion(t)},wr.prototype.multiplyToArray=function(){console.warn("THREE.Matrix4: .multiplyToArray() has been removed.")},wr.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector4=function(t){return console.warn("THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix4: .multiplyVector3Array() has been removed.")},wr.prototype.rotateAxis=function(t){console.warn("THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead."),t.transformDirection(this)},wr.prototype.crossVector=function(t){return console.warn("THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.translate=function(){console.error("THREE.Matrix4: .translate() has been removed.")},wr.prototype.rotateX=function(){console.error("THREE.Matrix4: .rotateX() has been removed.")},wr.prototype.rotateY=function(){console.error("THREE.Matrix4: .rotateY() has been removed.")},wr.prototype.rotateZ=function(){console.error("THREE.Matrix4: .rotateZ() has been removed.")},wr.prototype.rotateByAxis=function(){console.error("THREE.Matrix4: .rotateByAxis() has been removed.")},wr.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.applyToVector3Array=function(){console.error("THREE.Matrix4: .applyToVector3Array() has been removed.")},wr.prototype.makeFrustum=function(t,e,n,r,i,s){return console.warn("THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead."),this.makePerspective(t,e,r,n,i,s)},wr.prototype.getInverse=function(t){return console.warn("THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},Qr.prototype.isIntersectionLine=function(t){return console.warn("THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine()."),this.intersectsLine(t)},Xn.prototype.multiplyVector3=function(t){return console.warn("THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead."),t.applyQuaternion(this)},Xn.prototype.inverse=function(){return console.warn("THREE.Quaternion: .inverse() has been renamed to invert()."),this.invert()},br.prototype.isIntersectionBox=function(t){return console.warn("THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},br.prototype.isIntersectionPlane=function(t){return console.warn("THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane()."),this.intersectsPlane(t)},br.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},li.prototype.area=function(){return console.warn("THREE.Triangle: .area() has been renamed to .getArea()."),this.getArea()},li.prototype.barycoordFromPoint=function(t,e){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),this.getBarycoord(t,e)},li.prototype.midpoint=function(t){return console.warn("THREE.Triangle: .midpoint() has been renamed to .getMidpoint()."),this.getMidpoint(t)},li.prototypenormal=function(t){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),this.getNormal(t)},li.prototype.plane=function(t){return console.warn("THREE.Triangle: .plane() has been renamed to .getPlane()."),this.getPlane(t)},li.barycoordFromPoint=function(t,e,n,r,i){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),li.getBarycoord(t,e,n,r,i)},li.normal=function(t,e,n,r){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),li.getNormal(t,e,n,r)},Yd.prototype.extractAllPoints=function(t){return console.warn("THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead."),this.extractPoints(t)},Yd.prototype.extrude=function(t){return console.warn("THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead."),new gp(this,t)},Yd.prototype.makeGeometry=function(t){return console.warn("THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead."),new Sp(this,t)},On.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},On.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},On.prototype.lengthManhattan=function(){return console.warn("THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Yn.prototype.setEulerFromRotationMatrix=function(){console.error("THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.")},Yn.prototype.setEulerFromQuaternion=function(){console.error("THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.")},Yn.prototype.getPositionFromMatrix=function(t){return console.warn("THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition()."),this.setFromMatrixPosition(t)},Yn.prototype.getScaleFromMatrix=function(t){return console.warn("THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale()."),this.setFromMatrixScale(t)},Yn.prototype.getColumnFromMatrix=function(t,e){return console.warn("THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn()."),this.setFromMatrixColumn(e,t)},Yn.prototype.applyProjection=function(t){return console.warn("THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead."),this.applyMatrix4(t)},Yn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Yn.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},Yn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Wn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Wn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Xr.prototype.getChildByName=function(t){return console.warn("THREE.Object3D: .getChildByName() has been renamed to .getObjectByName()."),this.getObjectByName(t)},Xr.prototype.renderDepth=function(){console.warn("THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.")},Xr.prototype.translate=function(t,e){return console.warn("THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead."),this.translateOnAxis(e,t)},Xr.prototype.getWorldRotation=function(){console.error("THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.")},Xr.prototype.applyMatrix=function(t){return console.warn("THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(Xr.prototype,{eulerOrder:{get:function(){return console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order},set:function(t){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order=t}},useQuaternion:{get:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")},set:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")}}}),os.prototype.setDrawMode=function(){console.error("THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")},Object.defineProperties(os.prototype,{drawMode:{get:function(){return console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode."),0},set:function(){console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")}}}),Object.defineProperties(Uh.prototype,{objects:{get:function(){return console.warn("THREE.LOD: .objects has been renamed to .levels."),this.levels}}}),Object.defineProperty(Qh.prototype,"useVertexTexture",{get:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")},set:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")}}),Xh.prototype.initBones=function(){console.error("THREE.SkinnedMesh: initBones() has been removed.")},Object.defineProperty(yd.prototype,"__arcLengthDivisions",{get:function(){return console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions},set:function(t){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions=t}}),xs.prototype.setLens=function(t,e){console.warn("THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup."),void 0!==e&&(this.filmGauge=e),this.setFocalLength(t)},Object.defineProperties(Zd.prototype,{onlyShadow:{set:function(){console.warn("THREE.Light: .onlyShadow has been removed.")}},shadowCameraFov:{set:function(t){console.warn("THREE.Light: .shadowCameraFov is now .shadow.camera.fov."),this.shadow.camera.fov=t}},shadowCameraLeft:{set:function(t){console.warn("THREE.Light: .shadowCameraLeft is now .shadow.camera.left."),this.shadow.camera.left=t}},shadowCameraRight:{set:function(t){console.warn("THREE.Light: .shadowCameraRight is now .shadow.camera.right."),this.shadow.camera.right=t}},shadowCameraTop:{set:function(t){console.warn("THREE.Light: .shadowCameraTop is now .shadow.camera.top."),this.shadow.camera.top=t}},shadowCameraBottom:{set:function(t){console.warn("THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom."),this.shadow.camera.bottom=t}},shadowCameraNear:{set:function(t){console.warn("THREE.Light: .shadowCameraNear is now .shadow.camera.near."),this.shadow.camera.near=t}},shadowCameraFar:{set:function(t){console.warn("THREE.Light: .shadowCameraFar is now .shadow.camera.far."),this.shadow.camera.far=t}},shadowCameraVisible:{set:function(){console.warn("THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.")}},shadowBias:{set:function(t){console.warn("THREE.Light: .shadowBias is now .shadow.bias."),this.shadow.bias=t}},shadowDarkness:{set:function(){console.warn("THREE.Light: .shadowDarkness has been removed.")}},shadowMapWidth:{set:function(t){console.warn("THREE.Light: .shadowMapWidth is now .shadow.mapSize.width."),this.shadow.mapSize.width=t}},shadowMapHeight:{set:function(t){console.warn("THREE.Light: .shadowMapHeight is now .shadow.mapSize.height."),this.shadow.mapSize.height=t}}}),Object.defineProperties(bi.prototype,{length:{get:function(){return console.warn("THREE.BufferAttribute: .length has been deprecated. Use .count instead."),this.array.length}},dynamic:{get:function(){return console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.usage===Mn},set:function(){console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.setUsage(Mn)}}}),bi.prototype.setDynamic=function(t){return console.warn("THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},bi.prototype.copyIndicesArray=function(){console.error("THREE.BufferAttribute: .copyIndicesArray() has been removed.")},bi.prototype.setArray=function(){console.error("THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},ki.prototype.addIndex=function(t){console.warn("THREE.BufferGeometry: .addIndex() has been renamed to .setIndex()."),this.setIndex(t)},ki.prototype.addAttribute=function(t,e){return console.warn("THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute()."),e&&e.isBufferAttribute||e&&e.isInterleavedBufferAttribute?"index"===t?(console.warn("THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute."),this.setIndex(e),this):this.setAttribute(t,e):(console.warn("THREE.BufferGeometry: .addAttribute() now expects ( name, attribute )."),this.setAttribute(t,new bi(arguments[1],arguments[2])))},ki.prototype.addDrawCall=function(t,e,n){void 0!==n&&console.warn("THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset."),console.warn("THREE.BufferGeometry: .addDrawCall() is now .addGroup()."),this.addGroup(t,e)},ki.prototype.clearDrawCalls=function(){console.warn("THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups()."),this.clearGroups()},ki.prototype.computeOffsets=function(){console.warn("THREE.BufferGeometry: .computeOffsets() has been removed.")},ki.prototype.removeAttribute=function(t){return console.warn("THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute()."),this.deleteAttribute(t)},ki.prototype.applyMatrix=function(t){return console.warn("THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(ki.prototype,{drawcalls:{get:function(){return console.error("THREE.BufferGeometry: .drawcalls has been renamed to .groups."),this.groups}},offsets:{get:function(){return console.warn("THREE.BufferGeometry: .offsets has been renamed to .groups."),this.groups}}}),Object.defineProperties(xm.prototype,{maxInstancedCount:{get:function(){return console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount},set:function(t){console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount=t}}}),Object.defineProperties(vf.prototype,{linePrecision:{get:function(){return console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold},set:function(t){console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold=t}}}),Object.defineProperties(_h.prototype,{dynamic:{get:function(){return console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.usage===Mn},set:function(t){console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.setUsage(t)}}}),_h.prototype.setDynamic=function(t){return console.warn("THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},_h.prototype.setArray=function(){console.error("THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},gp.prototype.getArrays=function(){console.error("THREE.ExtrudeGeometry: .getArrays() has been removed.")},gp.prototype.addShapeList=function(){console.error("THREE.ExtrudeGeometry: .addShapeList() has been removed.")},gp.prototype.addShape=function(){console.error("THREE.ExtrudeGeometry: .addShape() has been removed.")},yh.prototype.dispose=function(){console.error("THREE.Scene: .dispose() has been removed.")},Object.defineProperties(ff.prototype,{dynamic:{set:function(){console.warn("THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.")}},onUpdate:{value:function(){return console.warn("THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead."),this}}}),Object.defineProperties(hi.prototype,{wrapAround:{get:function(){console.warn("THREE.Material: .wrapAround has been removed.")},set:function(){console.warn("THREE.Material: .wrapAround has been removed.")}},overdraw:{get:function(){console.warn("THREE.Material: .overdraw has been removed.")},set:function(){console.warn("THREE.Material: .overdraw has been removed.")}},wrapRGB:{get:function(){return console.warn("THREE.Material: .wrapRGB has been removed."),new xi}},shading:{get:function(){console.error("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")},set:function(t){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===t}},stencilMask:{get:function(){return console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask},set:function(t){console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask=t}}}),Object.defineProperties(zp.prototype,{metal:{get:function(){return console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead."),!1},set:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead")}}}),Object.defineProperties(Op.prototype,{transparency:{get:function(){return console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission},set:function(t){console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission=t}}}),Object.defineProperties(fs.prototype,{derivatives:{get:function(){return console.warn("THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives},set:function(t){console.warn("THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives=t}}}),fh.prototype.clearTarget=function(t,e,n,r){console.warn("THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead."),this.setRenderTarget(t),this.clear(e,n,r)},fh.prototype.animate=function(t){console.warn("THREE.WebGLRenderer: .animate() is now .setAnimationLoop()."),this.setAnimationLoop(t)},fh.prototype.getCurrentRenderTarget=function(){return console.warn("THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget()."),this.getRenderTarget()},fh.prototype.getMaxAnisotropy=function(){return console.warn("THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy()."),this.capabilities.getMaxAnisotropy()},fh.prototype.getPrecision=function(){return console.warn("THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision."),this.capabilities.precision},fh.prototype.resetGLState=function(){return console.warn("THREE.WebGLRenderer: .resetGLState() is now .state.reset()."),this.state.reset()},fh.prototype.supportsFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' )."),this.extensions.get("OES_texture_float")},fh.prototype.supportsHalfFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' )."),this.extensions.get("OES_texture_half_float")},fh.prototype.supportsStandardDerivatives=function(){return console.warn("THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' )."),this.extensions.get("OES_standard_derivatives")},fh.prototype.supportsCompressedTextureS3TC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' )."),this.extensions.get("WEBGL_compressed_texture_s3tc")},fh.prototype.supportsCompressedTexturePVRTC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' )."),this.extensions.get("WEBGL_compressed_texture_pvrtc")},fh.prototype.supportsBlendMinMax=function(){return console.warn("THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' )."),this.extensions.get("EXT_blend_minmax")},fh.prototype.supportsVertexTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures."),this.capabilities.vertexTextures},fh.prototype.supportsInstancedArrays=function(){return console.warn("THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' )."),this.extensions.get("ANGLE_instanced_arrays")},fh.prototype.enableScissorTest=function(t){console.warn("THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest()."),this.setScissorTest(t)},fh.prototype.initMaterial=function(){console.warn("THREE.WebGLRenderer: .initMaterial() has been removed.")},fh.prototype.addPrePlugin=function(){console.warn("THREE.WebGLRenderer: .addPrePlugin() has been removed.")},fh.prototype.addPostPlugin=function(){console.warn("THREE.WebGLRenderer: .addPostPlugin() has been removed.")},fh.prototype.updateShadowMap=function(){console.warn("THREE.WebGLRenderer: .updateShadowMap() has been removed.")},fh.prototype.setFaceCulling=function(){console.warn("THREE.WebGLRenderer: .setFaceCulling() has been removed.")},fh.prototype.allocTextureUnit=function(){console.warn("THREE.WebGLRenderer: .allocTextureUnit() has been removed.")},fh.prototype.setTexture=function(){console.warn("THREE.WebGLRenderer: .setTexture() has been removed.")},fh.prototype.setTexture2D=function(){console.warn("THREE.WebGLRenderer: .setTexture2D() has been removed.")},fh.prototype.setTextureCube=function(){console.warn("THREE.WebGLRenderer: .setTextureCube() has been removed.")},fh.prototype.getActiveMipMapLevel=function(){return console.warn("THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel()."),this.getActiveMipmapLevel()},Object.defineProperties(fh.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled."),this.shadowMap.enabled=t}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type."),this.shadowMap.type=t}},shadowMapCullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")}},context:{get:function(){return console.warn("THREE.WebGLRenderer: .context has been removed. Use .getContext() instead."),this.getContext()}},vr:{get:function(){return console.warn("THREE.WebGLRenderer: .vr has been renamed to .xr"),this.xr}},gammaInput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead."),!1},set:function(){console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.")}},gammaOutput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),!1},set:function(t){console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),this.outputEncoding=!0===t?Ye:Xe}},toneMappingWhitePoint:{get:function(){return console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed."),1},set:function(){console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.")}}}),Object.defineProperties(sh.prototype,{cullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")}},renderReverseSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")}},renderSingleSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")}}}),Object.defineProperties(jn.prototype,{wrapS:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS=t}},wrapT:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT=t}},magFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter=t}},minFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter=t}},anisotropy:{get:function(){return console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy},set:function(t){console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy=t}},offset:{get:function(){return console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset},set:function(t){console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset=t}},repeat:{get:function(){return console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat},set:function(t){console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat=t}},format:{get:function(){return console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format},set:function(t){console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format=t}},type:{get:function(){return console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type},set:function(t){console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type=t}},generateMipmaps:{get:function(){return console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps},set:function(t){console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps=t}}}),Object.defineProperties(jm.prototype,{load:{value:function(t){console.warn("THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.");const e=this;return(new Dm).load(t,function(t){e.setBuffer(t)}),this}},startTime:{set:function(){console.warn("THREE.Audio: .startTime is now .play( delay ).")}}}),Qm.prototype.getData=function(){return console.warn("THREE.AudioAnalyser: .getData() is now .getFrequencyData()."),this.getFrequencyData()},_s.prototype.updateCubeMap=function(t,e){return console.warn("THREE.CubeCamera: .updateCubeMap() is now .update()."),this.update(t,e)},_s.prototype.clear=function(t,e,n,r){return console.warn("THREE.CubeCamera: .clear() is now .renderTarget.clear()."),this.renderTarget.clear(t,e,n,r)},Hn.crossOrigin=void 0,Hn.loadTexture=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.");const i=new vd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadTextureCube=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.");const i=new gd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadCompressedTexture=function(){console.error("THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.")},Hn.loadCompressedTextureCube=function(){console.error("THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.")};const xx={createMultiMaterialObject:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},detach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},attach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")}};function vx(){console.error("THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js")}exports.SceneUtils=xx,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("register",{detail:{revision:"126"}})),"undefined"!=typeof window&&(window.__THREE__?console.warn("WARNING: Multiple instances of Three.js being imported."):window.__THREE__="126");
+},{}],"xTGv":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MapControls=exports.OrbitControls=void 0;var e=require("../../../build/three.module.js"),t=function(t,n){var o,a,i,r,c,s;void 0===n&&console.warn('THREE.OrbitControls: The second parameter "domElement" is now mandatory.'),n===document&&console.error('THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.'),this.object=t,this.domElement=n,this.enabled=!0,this.target=new e.Vector3,this.minDistance=0,this.maxDistance=1/0,this.minZoom=0,this.maxZoom=1/0,this.minPolarAngle=0,this.maxPolarAngle=Math.PI,this.minAzimuthAngle=-1/0,this.maxAzimuthAngle=1/0,this.enableDamping=!1,this.dampingFactor=.05,this.enableZoom=!0,this.zoomSpeed=1,this.enableRotate=!0,this.rotateSpeed=1,this.enablePan=!0,this.panSpeed=1,this.screenSpacePanning=!0,this.keyPanSpeed=7,this.autoRotate=!1,this.autoRotateSpeed=2,this.keys={LEFT:37,UP:38,RIGHT:39,BOTTOM:40},this.mouseButtons={LEFT:e.MOUSE.ROTATE,MIDDLE:e.MOUSE.DOLLY,RIGHT:e.MOUSE.PAN},this.touches={ONE:e.TOUCH.ROTATE,TWO:e.TOUCH.DOLLY_PAN},this.target0=this.target.clone(),this.position0=this.object.position.clone(),this.zoom0=this.object.zoom,this._domElementKeyEvents=null,this.getPolarAngle=function(){return E.phi},this.getAzimuthalAngle=function(){return E.theta},this.listenToKeyEvents=function(e){e.addEventListener("keydown",Q),this._domElementKeyEvents=e},this.saveState=function(){u.target0.copy(u.target),u.position0.copy(u.object.position),u.zoom0=u.object.zoom},this.reset=function(){u.target.copy(u.target0),u.object.position.copy(u.position0),u.object.zoom=u.zoom0,u.object.updateProjectionMatrix(),u.dispatchEvent(l),u.update(),d=h.NONE},this.update=(o=new e.Vector3,a=(new e.Quaternion).setFromUnitVectors(t.up,new e.Vector3(0,1,0)),i=a.clone().invert(),r=new e.Vector3,c=new e.Quaternion,s=2*Math.PI,function(){var e=u.object.position;o.copy(e).sub(u.target),o.applyQuaternion(a),E.setFromVector3(o),u.autoRotate&&d===h.NONE&&R(2*Math.PI/60/60*u.autoRotateSpeed),u.enableDamping?(E.theta+=f.theta*u.dampingFactor,E.phi+=f.phi*u.dampingFactor):(E.theta+=f.theta,E.phi+=f.phi);var t=u.minAzimuthAngle,n=u.maxAzimuthAngle;return isFinite(t)&&isFinite(n)&&(t<-Math.PI?t+=s:t>Math.PI&&(t-=s),n<-Math.PI?n+=s:n>Math.PI&&(n-=s),E.theta=t<=n?Math.max(t,Math.min(n,E.theta)):E.theta>(t+n)/2?Math.max(t,E.theta):Math.min(n,E.theta)),E.phi=Math.max(u.minPolarAngle,Math.min(u.maxPolarAngle,E.phi)),E.makeSafe(),E.radius*=O,E.radius=Math.max(u.minDistance,Math.min(u.maxDistance,E.radius)),!0===u.enableDamping?u.target.addScaledVector(g,u.dampingFactor):u.target.add(g),o.setFromSpherical(E),o.applyQuaternion(i),e.copy(u.target).add(o),u.object.lookAt(u.target),!0===u.enableDamping?(f.theta*=1-u.dampingFactor,f.phi*=1-u.dampingFactor,g.multiplyScalar(1-u.dampingFactor)):(f.set(0,0,0),g.set(0,0,0)),O=1,!!(v||r.distanceToSquared(u.object.position)>b||8*(1-c.dot(u.object.quaternion))>b)&&(u.dispatchEvent(l),r.copy(u.object.position),c.copy(u.object.quaternion),v=!1,!0)}),this.dispose=function(){u.domElement.removeEventListener("contextmenu",te),u.domElement.removeEventListener("pointerdown",B),u.domElement.removeEventListener("wheel",q),u.domElement.removeEventListener("touchstart",J),u.domElement.removeEventListener("touchend",ee),u.domElement.removeEventListener("touchmove",$),u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),null!==u._domElementKeyEvents&&u._domElementKeyEvents.removeEventListener("keydown",Q)};var u=this,l={type:"change"},m={type:"start"},p={type:"end"},h={NONE:-1,ROTATE:0,DOLLY:1,PAN:2,TOUCH_ROTATE:3,TOUCH_PAN:4,TOUCH_DOLLY_PAN:5,TOUCH_DOLLY_ROTATE:6},d=h.NONE,b=1e-6,E=new e.Spherical,f=new e.Spherical,O=1,g=new e.Vector3,v=!1,T=new e.Vector2,y=new e.Vector2,P=new e.Vector2,L=new e.Vector2,w=new e.Vector2,A=new e.Vector2,N=new e.Vector2,M=new e.Vector2,j=new e.Vector2;function D(){return Math.pow(.95,u.zoomSpeed)}function R(e){f.theta-=e}function S(e){f.phi-=e}var k,C=(k=new e.Vector3,function(e,t){k.setFromMatrixColumn(t,0),k.multiplyScalar(-e),g.add(k)}),Y=function(){var t=new e.Vector3;return function(e,n){!0===u.screenSpacePanning?t.setFromMatrixColumn(n,1):(t.setFromMatrixColumn(n,0),t.crossVectors(u.object.up,t)),t.multiplyScalar(e),g.add(t)}}(),x=function(){var t=new e.Vector3;return function(e,n){var o=u.domElement;if(u.object.isPerspectiveCamera){var a=u.object.position;t.copy(a).sub(u.target);var i=t.length();i*=Math.tan(u.object.fov/2*Math.PI/180),C(2*e*i/o.clientHeight,u.object.matrix),Y(2*n*i/o.clientHeight,u.object.matrix)}else u.object.isOrthographicCamera?(C(e*(u.object.right-u.object.left)/u.object.zoom/o.clientWidth,u.object.matrix),Y(n*(u.object.top-u.object.bottom)/u.object.zoom/o.clientHeight,u.object.matrix)):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - pan disabled."),u.enablePan=!1)}}();function H(e){u.object.isPerspectiveCamera?O/=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom*e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function U(e){u.object.isPerspectiveCamera?O*=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom/e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function _(e){T.set(e.clientX,e.clientY)}function V(e){L.set(e.clientX,e.clientY)}function z(e){if(1==e.touches.length)T.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);T.set(t,n)}}function I(e){if(1==e.touches.length)L.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);L.set(t,n)}}function X(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);N.set(0,o)}function F(e){if(1==e.touches.length)y.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);y.set(t,n)}P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var o=u.domElement;R(2*Math.PI*P.x/o.clientHeight),S(2*Math.PI*P.y/o.clientHeight),T.copy(y)}function Z(e){if(1==e.touches.length)w.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);w.set(t,n)}A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w)}function K(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);M.set(0,o),j.set(0,Math.pow(M.y/N.y,u.zoomSpeed)),H(j.y),N.copy(M)}function B(t){if(!1!==u.enabled)switch(t.pointerType){case"mouse":case"pen":!function(t){var n;switch(t.preventDefault(),u.domElement.focus?u.domElement.focus():window.focus(),t.button){case 0:n=u.mouseButtons.LEFT;break;case 1:n=u.mouseButtons.MIDDLE;break;case 2:n=u.mouseButtons.RIGHT;break;default:n=-1}switch(n){case e.MOUSE.DOLLY:if(!1===u.enableZoom)return;!function(e){N.set(e.clientX,e.clientY)}(t),d=h.DOLLY;break;case e.MOUSE.ROTATE:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enablePan)return;V(t),d=h.PAN}else{if(!1===u.enableRotate)return;_(t),d=h.ROTATE}break;case e.MOUSE.PAN:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enableRotate)return;_(t),d=h.ROTATE}else{if(!1===u.enablePan)return;V(t),d=h.PAN}break;default:d=h.NONE}d!==h.NONE&&(u.domElement.ownerDocument.addEventListener("pointermove",G),u.domElement.ownerDocument.addEventListener("pointerup",W),u.dispatchEvent(m))}(t)}}function G(e){if(!1!==u.enabled)switch(e.pointerType){case"mouse":case"pen":!function(e){if(!1===u.enabled)return;switch(e.preventDefault(),d){case h.ROTATE:if(!1===u.enableRotate)return;!function(e){y.set(e.clientX,e.clientY),P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var t=u.domElement;R(2*Math.PI*P.x/t.clientHeight),S(2*Math.PI*P.y/t.clientHeight),T.copy(y),u.update()}(e);break;case h.DOLLY:if(!1===u.enableZoom)return;!function(e){M.set(e.clientX,e.clientY),j.subVectors(M,N),j.y>0?H(D()):j.y<0&&U(D()),N.copy(M),u.update()}(e);break;case h.PAN:if(!1===u.enablePan)return;!function(e){w.set(e.clientX,e.clientY),A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w),u.update()}(e)}}(e)}}function W(e){switch(e.pointerType){case"mouse":case"pen":!function(e){if(u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),!1===u.enabled)return;u.dispatchEvent(p),d=h.NONE}()}}function q(e){!1===u.enabled||!1===u.enableZoom||d!==h.NONE&&d!==h.ROTATE||(e.preventDefault(),e.stopPropagation(),u.dispatchEvent(m),function(e){e.deltaY<0?U(D()):e.deltaY>0&&H(D()),u.update()}(e),u.dispatchEvent(p))}function Q(e){!1!==u.enabled&&!1!==u.enablePan&&function(e){var t=!1;switch(e.keyCode){case u.keys.UP:x(0,u.keyPanSpeed),t=!0;break;case u.keys.BOTTOM:x(0,-u.keyPanSpeed),t=!0;break;case u.keys.LEFT:x(u.keyPanSpeed,0),t=!0;break;case u.keys.RIGHT:x(-u.keyPanSpeed,0),t=!0}t&&(e.preventDefault(),u.update())}(e)}function J(t){if(!1!==u.enabled){switch(t.preventDefault(),t.touches.length){case 1:switch(u.touches.ONE){case e.TOUCH.ROTATE:if(!1===u.enableRotate)return;z(t),d=h.TOUCH_ROTATE;break;case e.TOUCH.PAN:if(!1===u.enablePan)return;I(t),d=h.TOUCH_PAN;break;default:d=h.NONE}break;case 2:switch(u.touches.TWO){case e.TOUCH.DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&X(e),u.enablePan&&I(e)}(t),d=h.TOUCH_DOLLY_PAN;break;case e.TOUCH.DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&X(e),u.enableRotate&&z(e)}(t),d=h.TOUCH_DOLLY_ROTATE;break;default:d=h.NONE}break;default:d=h.NONE}d!==h.NONE&&u.dispatchEvent(m)}}function $(e){if(!1!==u.enabled)switch(e.preventDefault(),e.stopPropagation(),d){case h.TOUCH_ROTATE:if(!1===u.enableRotate)return;F(e),u.update();break;case h.TOUCH_PAN:if(!1===u.enablePan)return;Z(e),u.update();break;case h.TOUCH_DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&K(e),u.enablePan&&Z(e)}(e),u.update();break;case h.TOUCH_DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&K(e),u.enableRotate&&F(e)}(e),u.update();break;default:d=h.NONE}}function ee(e){!1!==u.enabled&&(u.dispatchEvent(p),d=h.NONE)}function te(e){!1!==u.enabled&&e.preventDefault()}u.domElement.addEventListener("contextmenu",te),u.domElement.addEventListener("pointerdown",B),u.domElement.addEventListener("wheel",q),u.domElement.addEventListener("touchstart",J),u.domElement.addEventListener("touchend",ee),u.domElement.addEventListener("touchmove",$),this.update()};exports.OrbitControls=t,t.prototype=Object.create(e.EventDispatcher.prototype),t.prototype.constructor=t;var n=function(n,o){t.call(this,n,o),this.screenSpacePanning=!1,this.mouseButtons.LEFT=e.MOUSE.PAN,this.mouseButtons.RIGHT=e.MOUSE.ROTATE,this.touches.ONE=e.TOUCH.PAN,this.touches.TWO=e.TOUCH.DOLLY_ROTATE};exports.MapControls=n,n.prototype=Object.create(e.EventDispatcher.prototype),n.prototype.constructor=n;
+},{"../../../build/three.module.js":"dKqR"}],"Jcll":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.BufferGeometryUtils=void 0;var e=require("../../../build/three.module.js"),t={computeTangents:function(e){e.computeTangents(),console.warn("THREE.BufferGeometryUtils: .computeTangents() has been removed. Use BufferGeometry.computeTangents() instead.")},mergeBufferGeometries:function(t,r){for(var o=null!==t[0].index,i=new Set(Object.keys(t[0].attributes)),n=new Set(Object.keys(t[0].morphAttributes)),a={},u={},s=t[0].morphTargetsRelative,f=new e.BufferGeometry,l=0,m=0;m<t.length;++m){var g=t[m],c=0;if(o!==(null!==g.index))return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". All geometries must have compatible attributes; make sure index attribute exists among all geometries, or in none of them."),null;for(var d in g.attributes){if(!i.has(d))return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+'. All geometries must have compatible attributes; make sure "'+d+'" attribute exists among all geometries, or in none of them.'),null;void 0===a[d]&&(a[d]=[]),a[d].push(g.attributes[d]),c++}if(c!==i.size)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". Make sure all geometries have the same number of attributes."),null;if(s!==g.morphTargetsRelative)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". .morphTargetsRelative must be consistent throughout all geometries."),null;for(var d in g.morphAttributes){if(!n.has(d))return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+".  .morphAttributes must be consistent throughout all geometries."),null;void 0===u[d]&&(u[d]=[]),u[d].push(g.morphAttributes[d])}if(f.userData.mergedUserData=f.userData.mergedUserData||[],f.userData.mergedUserData.push(g.userData),r){var h;if(o)h=g.index.count;else{if(void 0===g.attributes.position)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index "+m+". The geometry must have either an index or a position attribute"),null;h=g.attributes.position.count}f.addGroup(l,h,m),l+=h}}if(o){var b=0,p=[];for(m=0;m<t.length;++m){for(var v=t[m].index,y=0;y<v.count;++y)p.push(v.getX(y)+b);b+=t[m].attributes.position.count}f.setIndex(p)}for(var d in a){var A=this.mergeBufferAttributes(a[d]);if(!A)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the "+d+" attribute."),null;f.setAttribute(d,A)}for(var d in u){var B=u[d][0].length;if(0===B)break;f.morphAttributes=f.morphAttributes||{},f.morphAttributes[d]=[];for(m=0;m<B;++m){var w=[];for(y=0;y<u[d].length;++y)w.push(u[d][y][m]);var E=this.mergeBufferAttributes(w);if(!E)return console.error("THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the "+d+" morphAttribute."),null;f.morphAttributes[d].push(E)}}return f},mergeBufferAttributes:function(t){for(var r,o,i,n=0,a=0;a<t.length;++a){var u=t[a];if(u.isInterleavedBufferAttribute)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. InterleavedBufferAttributes are not supported."),null;if(void 0===r&&(r=u.array.constructor),r!==u.array.constructor)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.array must be of consistent array types across matching attributes."),null;if(void 0===o&&(o=u.itemSize),o!==u.itemSize)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.itemSize must be consistent across matching attributes."),null;if(void 0===i&&(i=u.normalized),i!==u.normalized)return console.error("THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.normalized must be consistent across matching attributes."),null;n+=u.array.length}var s=new r(n),f=0;for(a=0;a<t.length;++a)s.set(t[a].array,f),f+=t[a].array.length;return new e.BufferAttribute(s,o,i)},interleaveAttributes:function(t){for(var r,o=0,i=0,n=0,a=t.length;n<a;++n){var u=t[n];if(void 0===r&&(r=u.array.constructor),r!==u.array.constructor)return console.error("AttributeBuffers of different types cannot be interleaved"),null;o+=u.array.length,i+=u.itemSize}var s=new e.InterleavedBuffer(new r(o),i),f=0,l=[],m=["getX","getY","getZ","getW"],g=["setX","setY","setZ","setW"],c=0;for(a=t.length;c<a;c++){var d=(u=t[c]).itemSize,h=u.count,b=new e.InterleavedBufferAttribute(s,d,f,u.normalized);l.push(b),f+=d;for(var p=0;p<h;p++)for(var v=0;v<d;v++)b[g[v]](p,u[m[v]](p))}return l},estimateBytesUsed:function(e){var t=0;for(var r in e.attributes){var o=e.getAttribute(r);t+=o.count*o.itemSize*o.array.BYTES_PER_ELEMENT}var i=e.getIndex();return t+=i?i.count*i.itemSize*i.array.BYTES_PER_ELEMENT:0},mergeVertices:function(t,r=1e-4){r=Math.max(r,Number.EPSILON);for(var o={},i=t.getIndex(),n=t.getAttribute("position"),a=i?i.count:n.count,u=0,s=Object.keys(t.attributes),f={},l={},m=[],g=["getX","getY","getZ","getW"],c=0,d=s.length;c<d;c++){f[A=s[c]]=[],(T=t.morphAttributes[A])&&(l[A]=new Array(T.length).fill().map(()=>[]))}var h=Math.log10(1/r),b=Math.pow(10,h);for(c=0;c<a;c++){var p=i?i.getX(c):c,v="",y=0;for(d=s.length;y<d;y++)for(var A=s[y],B=(E=t.getAttribute(A)).itemSize,w=0;w<B;w++)v+=`${~~(E[g[w]](p)*b)},`;if(v in o)m.push(o[v]);else{for(y=0,d=s.length;y<d;y++){A=s[y];var E=t.getAttribute(A),T=t.morphAttributes[A],G=(B=E.itemSize,f[A]),x=l[A];for(w=0;w<B;w++){var U=g[w];if(G.push(E[U](p)),T)for(var M=0,S=T.length;M<S;M++)x[M].push(T[M][U](p))}}o[v]=u,m.push(u),u++}}const R=t.clone();for(c=0,d=s.length;c<d;c++){A=s[c];var z=t.getAttribute(A),X=new z.array.constructor(f[A]);E=new e.BufferAttribute(X,z.itemSize,z.normalized);if(R.setAttribute(A,E),A in l)for(y=0;y<l[A].length;y++){var H=t.morphAttributes[A][y],D=(X=new H.array.constructor(l[A][y]),new e.BufferAttribute(X,H.itemSize,H.normalized));R.morphAttributes[A][y]=D}}return R.setIndex(m),R},toTrianglesDrawMode:function(t,r){if(r===e.TrianglesDrawMode)return console.warn("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles."),t;if(r===e.TriangleFanDrawMode||r===e.TriangleStripDrawMode){var o=t.getIndex();if(null===o){var i=[],n=t.getAttribute("position");if(void 0===n)return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. Processing not possible."),t;for(var a=0;a<n.count;a++)i.push(a);t.setIndex(i),o=t.getIndex()}var u=o.count-2,s=[];if(r===e.TriangleFanDrawMode)for(a=1;a<=u;a++)s.push(o.getX(0)),s.push(o.getX(a)),s.push(o.getX(a+1));else for(a=0;a<u;a++)a%2==0?(s.push(o.getX(a)),s.push(o.getX(a+1)),s.push(o.getX(a+2))):(s.push(o.getX(a+2)),s.push(o.getX(a+1)),s.push(o.getX(a)));s.length/3!==u&&console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unable to generate correct amount of triangles.");var f=t.clone();return f.setIndex(s),f.clearGroups(),f}return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unknown draw mode:",r),t},computeMorphedAttributes:function(t){if(!0!==t.geometry.isBufferGeometry)return console.error("THREE.BufferGeometryUtils: Geometry is not of type BufferGeometry."),null;var r=new e.Vector3,o=new e.Vector3,i=new e.Vector3,n=new e.Vector3,a=new e.Vector3,u=new e.Vector3,s=new e.Vector3,f=new e.Vector3,l=new e.Vector3;function m(e,t,m,g,c,d,h,b,p){r.fromBufferAttribute(m,d),o.fromBufferAttribute(m,h),i.fromBufferAttribute(m,b);var v=e.morphTargetInfluences;if(t.morphTargets&&g&&v){s.set(0,0,0),f.set(0,0,0),l.set(0,0,0);for(var y=0,A=g.length;y<A;y++){var B=v[y],w=g[y];0!==B&&(n.fromBufferAttribute(w,d),a.fromBufferAttribute(w,h),u.fromBufferAttribute(w,b),c?(s.addScaledVector(n,B),f.addScaledVector(a,B),l.addScaledVector(u,B)):(s.addScaledVector(n.sub(r),B),f.addScaledVector(a.sub(o),B),l.addScaledVector(u.sub(i),B)))}r.add(s),o.add(f),i.add(l)}e.isSkinnedMesh&&(e.boneTransform(d,r),e.boneTransform(h,o),e.boneTransform(b,i)),p[3*d+0]=r.x,p[3*d+1]=r.y,p[3*d+2]=r.z,p[3*h+0]=o.x,p[3*h+1]=o.y,p[3*h+2]=o.z,p[3*b+0]=i.x,p[3*b+1]=i.y,p[3*b+2]=i.z}var g,c,d,h,b,p,v,y,A,B=t.geometry,w=t.material,E=B.index,T=B.attributes.position,G=B.morphAttributes.position,x=B.morphTargetsRelative,U=B.attributes.normal,M=B.morphAttributes.position,S=B.groups,R=B.drawRange,z=new Float32Array(T.count*T.itemSize),X=new Float32Array(U.count*U.itemSize);if(null!==E)if(Array.isArray(w))for(h=0,p=S.length;h<p;h++)for(A=w[(y=S[h]).materialIndex],b=Math.max(y.start,R.start),v=Math.min(y.start+y.count,R.start+R.count);b<v;b+=3)m(t,A,T,G,x,g=E.getX(b),c=E.getX(b+1),d=E.getX(b+2),z),m(t,A,U,M,x,g,c,d,X);else for(h=Math.max(0,R.start),p=Math.min(E.count,R.start+R.count);h<p;h+=3)m(t,w,T,G,x,g=E.getX(h),c=E.getX(h+1),d=E.getX(h+2),z),m(t,w,U,M,x,g,c,d,X);else if(void 0!==T)if(Array.isArray(w))for(h=0,p=S.length;h<p;h++)for(A=w[(y=S[h]).materialIndex],b=Math.max(y.start,R.start),v=Math.min(y.start+y.count,R.start+R.count);b<v;b+=3)m(t,A,T,G,x,g=b,c=b+1,d=b+2,z),m(t,A,U,M,x,g,c,d,X);else for(h=Math.max(0,R.start),p=Math.min(T.count,R.start+R.count);h<p;h+=3)m(t,w,T,G,x,g=h,c=h+1,d=h+2,z),m(t,w,U,M,x,g,c,d,X);return{positionAttribute:T,normalAttribute:U,morphedPositionAttribute:new e.Float32BufferAttribute(z,3),morphedNormalAttribute:new e.Float32BufferAttribute(X,3)}}};exports.BufferGeometryUtils=t;
+},{"../../../build/three.module.js":"dKqR"}],"tuIt":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.CONTAINED=exports.INTERSECTED=exports.NOT_INTERSECTED=exports.SAH=exports.AVERAGE=exports.CENTER=void 0;var r=0;exports.CENTER=r;var E=1;exports.AVERAGE=E;var e=2;exports.SAH=e;var t=0;exports.NOT_INTERSECTED=t;var o=1;exports.INTERSECTED=o;var s=2;exports.CONTAINED=s;
+},{}],"qYFu":[function(require,module,exports) {
+"use strict";function e(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=function t(){e(this,t)};exports.default=t;
+},{}],"a4zN":[function(require,module,exports) {
+"use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
+},{}],"IMAa":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.buildTree=w,exports.buildPackedTree=B,exports.IS_LEAFNODE_FLAG=exports.BYTES_PER_NODE=void 0;var r=require("three"),n=o(require("./MeshBVHNode.js")),t=require("./Utils/ArrayBoxUtilities.js"),e=require("./Constants.js");function o(r){return r&&r.__esModule?r:{default:r}}function a(r,n){var t;if("undefined"==typeof Symbol||null==r[Symbol.iterator]){if(Array.isArray(r)||(t=i(r))||n&&r&&"number"==typeof r.length){t&&(r=t);var e=0,o=function(){};return{s:o,n:function(){return e>=r.length?{done:!0}:{done:!1,value:r[e++]}},e:function(r){throw r},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,u=!0,f=!1;return{s:function(){t=r[Symbol.iterator]()},n:function(){var r=t.next();return u=r.done,r},e:function(r){f=!0,a=r},f:function(){try{u||null==t.return||t.return()}finally{if(f)throw a}}}}function i(r,n){if(r){if("string"==typeof r)return u(r,n);var t=Object.prototype.toString.call(r).slice(8,-1);return"Object"===t&&r.constructor&&(t=r.constructor.name),"Map"===t||"Set"===t?Array.from(r):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?u(r,n):void 0}}function u(r,n){(null==n||n>r.length)&&(n=r.length);for(var t=0,e=new Array(n);t<n;t++)e[t]=r[t];return e}var f=Math.pow(2,-24),s=["x","y","z"],l=new r.Box3;function v(n){if(!n.index){var t=n.attributes.position.count,e=new(t>65535?Uint32Array:Uint16Array)(t);n.setIndex(new r.BufferAttribute(e,1));for(var o=0;o<t;o++)e[o]=o}}function c(r){if(!r.groups||!r.groups.length)return[{offset:0,count:r.index.count/3}];var n,t=[],e=new Set,o=a(r.groups);try{for(o.s();!(n=o.n()).done;){var i=n.value;e.add(i.start),e.add(i.start+i.count)}}catch(v){o.e(v)}finally{o.f()}for(var u=Array.from(e.values()).sort(function(r,n){return r-n}),f=0;f<u.length-1;f++){var s=u[f],l=u[f+1];t.push({offset:s/3,count:(l-s)/3})}return t}function d(r,n,t,e){for(var o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=1/0,i=1/0,u=1/0,f=-1/0,s=-1/0,l=-1/0,v=1/0,c=1/0,d=1/0,g=-1/0,y=-1/0,h=-1/0,x=null!==o,p=6*n,b=6*(n+t);p<b;p+=6){var w=r[p+0],A=r[p+1],m=w-A,B=w+A;m<a&&(a=m),B>f&&(f=B),x&&w<v&&(v=w),x&&w>g&&(g=w);var E=r[p+2],D=r[p+3],S=E-D,_=E+D;S<i&&(i=S),_>s&&(s=_),x&&E<c&&(c=E),x&&E>y&&(y=E);var F=r[p+4],M=r[p+5],T=F-M,I=F+M;T<u&&(u=T),I>l&&(l=I),x&&F<d&&(d=F),x&&F>h&&(h=F)}e[0]=a,e[1]=i,e[2]=u,e[3]=f,e[4]=s,e[5]=l,x&&(o[0]=v,o[1]=c,o[2]=d,o[3]=g,o[4]=y,o[5]=h)}function g(r,n,t,e){for(var o=1/0,a=1/0,i=1/0,u=-1/0,f=-1/0,s=-1/0,l=6*n,v=6*(n+t);l<v;l+=6){var c=r[l+0];c<o&&(o=c),c>u&&(u=c);var d=r[l+2];d<a&&(a=d),d>f&&(f=d);var g=r[l+4];g<i&&(i=g),g>s&&(s=g)}e[0]=o,e[1]=a,e[2]=i,e[3]=u,e[4]=f,e[5]=s}function y(r,n,t,e,o,a){for(var i=e,u=e+o-1,f=a.pos,s=2*a.axis;;){for(;i<=u&&n[6*i+s]<f;)i++;for(;i<=u&&n[6*u+s]>=f;)u--;if(!(i<u))return i;for(var l=0;l<3;l++){var v=r[3*i+l];r[3*i+l]=r[3*u+l],r[3*u+l]=v;var c=n[6*i+2*l+0];n[6*i+2*l+0]=n[6*u+2*l+0],n[6*u+2*l+0]=c;var d=n[6*i+2*l+1];n[6*i+2*l+1]=n[6*u+2*l+1],n[6*u+2*l+1]=d}if(t)for(var g=0;g<3;g++){var y=t[g][i];t[g][i]=t[g][u],t[g][u]=y}i++,u--}}function h(r,n,o,a,i,u,f){var v=-1,c=0;if(f===e.CENTER)-1!==(v=(0,t.getLongestEdgeIndex)(n))&&(c=(n[v]+n[v+3])/2);else if(f===e.AVERAGE)-1!==(v=(0,t.getLongestEdgeIndex)(r))&&(c=x(o,i,u,v));else if(f===e.SAH){for(var d=(0,t.arrayToBox)(r,l),g=[d.max.x-d.min.x,d.max.y-d.min.y,d.max.z-d.min.z],y=2*(g[0]*g[1]+g[0]*g[2]+g[1]*g[2]),h=[[],[],[]],p=i,b=i+u;p<b;p++)for(var w=0;w<3;w++)h[w].push(a[w][p]);h.forEach(function(r){return r.sort(function(r,n){return r.p-n.p})});var A=function(r,n,t,e,o){return 3+1*(n/r*t+e/r*o)};v=-1;for(var m=1*u,B=0;B<3;B++)for(var E=(B+1)%3,D=(B+2)%3,S=d.min[s[B]],_=d.max[s[B]],F=h[B],M=0,T=u,I=0;I<F.length;I++){var j=F[I];M++,T--;var L=j.p-S,O=_-j.p,U=g[E],H=g[E],N=g[D],C=g[D],V=A(y,2*(U*N+U*L+N*L),M,2*(H*C+H*O+C*O),T);V<m&&(v=B,c=j.p,m=V)}}return{axis:v,pos:c}}function x(r,n,t,e){for(var o=0,a=n,i=n+t;a<i;a++)o+=r[6*a+2*e];return o/t}function p(r){for(var n=r.length/6,t=[new Array(n),new Array(n),new Array(n)],e=0;e<n;e++)for(var o=0;o<3;o++)t[o][e]={p:r[6*e+2*o],tri:e};return t}function b(r){for(var n=r.attributes.position.array,t=r.index.array,e=t.length/3,o=new Float32Array(6*e),a=0;a<e;a++)for(var i=3*a,u=6*a,s=3*t[i+0],l=3*t[i+1],v=3*t[i+2],c=0;c<3;c++){var d=n[s+c],g=n[l+c],y=n[v+c],h=d;g<h&&(h=g),y<h&&(h=y);var x=d;g>x&&(x=g),y>x&&(x=y);var p=(x-h)/2,b=2*c;o[u+b+0]=h+p,o[u+b+1]=p+(Math.abs(h)+p)*f}return o}function w(o,i){function u(r,t,e){var a=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:0;if(!E&&i>=w&&(E=!0,A&&(console.warn("MeshBVH: Max depth of ".concat(w," reached when generating BVH. Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
+},{"three":"dKqR","./MeshBVHNode.js":"qYFu","./Utils/ArrayBoxUtilities.js":"a4zN","./Constants.js":"tuIt"}],"GlCc":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
+},{"three":"dKqR"}],"gld0":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
+},{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+},{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+},{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
+"use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
+},{}],"lzxM":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTri=s;var e=require("three"),r=new e.Vector3,t=new e.Vector3,n=new e.Vector3,i=new e.Vector2,o=new e.Vector2,u=new e.Vector2,a=new e.Vector3,c=new e.Vector3;function f(r,t,n,i,o,u,a,f){if(null===(t.side===e.BackSide?i.intersectTriangle(a,u,o,!0,f):i.intersectTriangle(o,u,a,t.side!==e.DoubleSide,f)))return null;c.copy(f),c.applyMatrix4(r.matrixWorld);var l=n.ray.origin.distanceTo(c);return l<n.near||l>n.far?null:{distance:l,point:c.clone(),object:r}}function l(c,l,s,d,b,m,V,g){r.fromBufferAttribute(d,m),t.fromBufferAttribute(d,V),n.fromBufferAttribute(d,g);var w=f(c,c.material,l,s,r,t,n,a);if(w){b&&(i.fromBufferAttribute(b,m),o.fromBufferAttribute(b,V),u.fromBufferAttribute(b,g),w.uv=e.Triangle.getUV(a,r,t,n,i,o,u,new e.Vector2));var x={a:m,b:V,c:g,normal:new e.Vector3,materialIndex:0};e.Triangle.getNormal(r,t,n,x.normal),w.face=x,w.faceIndex=m}return w}function s(e,r,t,n,i,o){var u=3*i,a=r.index.getX(u),c=r.index.getX(u+1),f=r.index.getX(u+2),s=l(e,t,n,r.attributes.position,r.attributes.uv,a,c,f);return s?(s.faceIndex=i,o&&o.push(s),s):null}
+},{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
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+},{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
+"use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
+},{}],"HxoX":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
+},{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
+},{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"ODOB":[function(require,module,exports) {
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("core-js/modules/es6.string.repeat"),require("core-js/modules/es6.string.small"),require("core-js/modules/es6.string.starts-with"),require("core-js/modules/es6.string.strike"),require("core-js/modules/es6.string.sub"),require("core-js/modules/es6.string.sup"),require("core-js/modules/es7.string.trim-left"),require("core-js/modules/es7.string.trim-right"),require("core-js/modules/es6.typed.array-buffer"),require("core-js/modules/es6.typed.int8-array"),require("core-js/modules/es6.typed.uint8-array"),require("core-js/modules/es6.typed.uint8-clamped-array"),require("core-js/modules/es6.typed.int16-array"),require("core-js/modules/es6.typed.uint16-array"),require("core-js/modules/es6.typed.int32-array"),require("core-js/modules/es6.typed.uint32-array"),require("core-js/modules/es6.typed.float32-array"),require("core-js/modules/es6.typed.float64-array"),require("core-js/modules/es6.weak-map"),require("core-js/modules/es6.weak-set"),require("core-js/modules/web.timers"),require("core-js/modules/web.immediate"),require("core-js/modules/web.dom.iterable"),require("regenerator-runtime/runtime");var e,r,s,o,t,i,n,u,a,d=y(require("stats.js/src/Stats")),c=q(require("dat.gui")),l=q(require("three")),m=require("three/examples/jsm/controls/OrbitControls.js"),p=require("three/examples/jsm/utils/BufferGeometryUtils.js"),j=require("../src/index.js");function f(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return f=function(){return e},e}function q(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=f();if(r&&r.has(e))return r.get(e);var s={},o=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var t in e)if(Object.prototype.hasOwnProperty.call(e,t)){var i=o?Object.getOwnPropertyDescriptor(e,t):null;i&&(i.get||i.set)?Object.defineProperty(s,t,i):s[t]=e[t]}return s.default=e,r&&r.set(e,s),s}function y(e){return e&&e.__esModule?e:{default:e}}l.Mesh.prototype.raycast=j.acceleratedRaycast,l.BufferGeometry.prototype.computeBoundsTree=j.computeBoundsTree,l.BufferGeometry.prototype.disposeBoundsTree=j.disposeBoundsTree;var g,h=new l.Vector3(0,0,1),w=new l.Vector2,b=new l.Vector2,v=!1,x=!1,M=new l.Vector3,z={size:.1,brush:"clay",intensity:50,maxSteps:20,invert:!1,symmetrical:!0,flatShading:!1,depth:10,displayHelper:!1};function S(){i&&(i.geometry.dispose(),i.material.dispose(),r.remove(i)),g||(g=(new l.TextureLoader).load("../textures/skinHazardousarts2.jpg"));var e=new l.IcosahedronBufferGeometry(1,100);e.deleteAttribute("uv"),(e=p.BufferGeometryUtils.mergeVertices(e)).attributes.position.setUsage(l.DynamicDrawUsage),e.attributes.normal.setUsage(l.DynamicDrawUsage),e.computeBoundsTree(),(i=new l.Mesh(e,new l.MeshMatcapMaterial({flatShading:z.flatShading,matcap:g}))).material.matcap.encoding=l.sRGBEncoding,i.frustumCulled=!1,r.add(i),a||((a=new j.MeshBVHVisualizer(i,z.depth)).visible=z.displayHelper,r.add(a)),a.mesh=i,a.update()}function B(){(o=new l.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),o.setSize(window.innerWidth,window.innerHeight),o.setClearColor(1251612,1),o.gammaOutput=!0,document.body.appendChild(o.domElement),(r=new l.Scene).fog=new l.Fog(1251612,20,60);var p=new l.DirectionalLight(16777215,.5);p.position.set(1,1,1),r.add(p),r.add(new l.AmbientLight(16777215,.4)),S();for(var j=[new l.Vector3,new l.Vector3(0,0,1)],f=0;f<50;f++){var q=f+1,y=Math.sin(2*Math.PI*f/50),g=Math.cos(2*Math.PI*f/50),h=Math.sin(2*Math.PI*q/50),b=Math.cos(2*Math.PI*q/50);j.push(new l.Vector3(y,g,0),new l.Vector3(h,b,0))}(n=new l.LineSegments).geometry.setFromPoints(j),n.material.color.set(16485376),r.add(n),u=n.clone(),r.add(u),(s=new l.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,3),s.far=100,s.updateProjectionMatrix(),(t=new m.OrbitControls(s,o.domElement)).minDistance=1.5,e=new d.default,document.body.appendChild(e.dom);var x=new c.GUI,M=x.addFolder("Sculpting");M.add(z,"brush",["normal","clay","flatten"]),M.add(z,"size").min(.025).max(.25).step(.005),M.add(z,"intensity").min(1).max(100).step(1),M.add(z,"maxSteps").min(1).max(50).step(1),M.add(z,"symmetrical"),M.add(z,"invert"),M.add(z,"flatShading").onChange(function(e){i.material.flatShading=e,i.material.needsUpdate=!0}),M.open();var B=x.addFolder("BVH Helper");B.add(z,"depth").min(1).max(20).step(1).onChange(function(e){a.depth=parseFloat(e),a.update()}),B.add(z,"displayHelper").onChange(function(e){a.visible=e}),B.open(),x.add({reset:S},"reset"),x.add({rebuildBVH:function(){i.geometry.computeBoundsTree(),a.update()}},"rebuildBVH"),x.open(),t.addEventListener("start",function(){this.active=!0}),t.addEventListener("end",function(){this.active=!1}),window.addEventListener("resize",function(){s.aspect=window.innerWidth/window.innerHeight,s.updateProjectionMatrix(),o.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("mousemove",function(e){w.x=e.clientX/window.innerWidth*2-1,w.y=-e.clientY/window.innerHeight*2+1}),window.addEventListener("mousedown",function(e){v=Boolean(1&e.buttons)}),window.addEventListener("mouseup",function(e){v=Boolean(1&e.buttons)}),window.addEventListener("contextmenu",function(e){e.preventDefault()}),window.addEventListener("wheel",function(e){var r=e.deltaY;1===e.deltaMode&&(r*=40),2===e.deltaMode&&(r*=40),z.size+=1e-4*r,z.size=Math.max(Math.min(z.size,.25),.025),x.updateDisplay()})}function P(e,r){var s=arguments.length>2&&void 0!==arguments[2]&&arguments[2],o=new l.Matrix4;o.copy(i.matrixWorld).invert();var t=new l.Sphere;t.center.copy(e).applyMatrix4(o),t.radius=z.size;var n=new Set,u=new l.Vector3,a=new l.Vector3,d=new l.Vector3;i.geometry.boundsTree.shapecast(i,function(e){var r=t.intersectsBox(e),s=e.min,o=e.max;if(r){for(var i=0;i<=1;i++)for(var n=0;n<=1;n++)for(var a=0;a<=1;a++)if(u.set(0===i?s.x:o.x,0===n?s.y:o.y,0===a?s.z:o.z),!t.containsPoint(u))return j.INTERSECTED;return j.CONTAINED}return r?j.INTERSECTED:j.NOT_INTERSECTED},function(e,r,s,o,i){return i?(n.add(r),n.add(s),n.add(o)):(t.containsPoint(e.a)&&n.add(r),t.containsPoint(e.b)&&n.add(s),t.containsPoint(e.c)&&n.add(o)),!1});var c=i.geometry.index,m=i.geometry.attributes.position,p=i.geometry.attributes.normal,f=new l.Vector3;f.copy(e).applyMatrix4(o);var q=new l.Vector3,y=0;if(n.forEach(function(e){var r=c.getX(e);u.fromBufferAttribute(p,r),d.add(u),s||(y++,u.fromBufferAttribute(m,r),q.add(u))}),d.normalize(),r.quaternion.setFromUnitVectors(h,d),y&&q.multiplyScalar(1/y),!s){var g=25e-6*z.intensity,w=new l.Plane;w.setFromNormalAndCoplanarPoint(d,q);var b={};if(n.forEach(function(e){var r=c.getX(e);u.fromBufferAttribute(m,r);var s=u.distanceTo(f),o=z.invert?-1:1,t=1-s/z.size;if("clay"===z.brush){t=Math.pow(t,3);var i=w.distanceToPoint(u),n=o*Math.min(2*t,.5)*2;u.addScaledVector(d,n*g-o*i*n*.1)}else if("normal"===z.brush)t=Math.pow(t,3),u.addScaledVector(d,o*t*g);else if("flatten"===z.brush){t=Math.pow(t,2);var a=w.distanceToPoint(u);u.addScaledVector(d,-a*t*z.intensity*.01*.5)}m.setXYZ(r,u.x,u.y,u.z);var l=b[r];l||(l=b[r]=[]),l.push(~~(e/3))}),n.size){var v=new l.Triangle;for(var x in b){u.set(0,0,0);var M=b[x];for(var S in M){var B=3*M[S];v.a.fromBufferAttribute(m,c.getX(B+0)),v.b.fromBufferAttribute(m,c.getX(B+1)),v.c.fromBufferAttribute(m,c.getX(B+2)),v.getNormal(a),u.add(a)}u.normalize(),p.setXYZ(x,u.x,u.y,u.z)}m.needsUpdate=!0,p.needsUpdate=!0}}}function E(){if(requestAnimationFrame(E),e.begin(),t.active)n.visible=!1,M.setScalar(1/0);else{var d=new l.Raycaster;d.setFromCamera(w,s),d.firstHitOnly=!0;var c=d.intersectObject(i,!0)[0];if(c)if(n.visible=!0,n.scale.set(z.size,z.size,.1),n.position.copy(c.point),u.visible=z.symmetrical,u.scale.set(z.size,z.size,.1),u.position.copy(c.point),u.position.x*=-1,t.enabled=!1,M.x===1/0&&M.copy(c.point),v||x){for(var m=(w.x-b.x)*window.innerWidth*window.devicePixelRatio,p=(w.y-b.y)*window.innerHeight*window.devicePixelRatio,j=Math.sqrt(m*m+p*p),f=c.point.distanceTo(M),q=.15*z.size,y=Math.max(q/f,1/z.maxSteps),g=j*y,h=0;f>q&&j>200*z.size/c.distance&&(b.lerp(w,y),M.lerp(c.point,y),f-=q,j-=g,P(M,n,!1),z.symmetrical&&(M.x*=-1,P(M,u,!1),M.x*=-1),!(++h>z.maxSteps)););h>0?(i.geometry.boundsTree.refit(i.geometry),a.update()):(P(c.point,n,!0),z.symmetrical&&(c.point.x*=-1,P(c.point,u,!0),c.point.x*=-1))}else P(c.point,n,!0),z.symmetrical&&(c.point.x*=-1,P(c.point,u,!0),c.point.x*=-1),b.copy(w),M.copy(c.point);else t.enabled=!0,n.visible=!1,u.visible=!1,b.copy(w),M.setScalar(1/0)}x=v,o.render(r,s),e.end()}B(),E();
+},{"core-js/modules/es6.array.copy-within":"tWTB","core-js/modules/es6.array.fill":"hUQ6","core-js/modules/es6.array.find":"Qppk","core-js/modules/es6.array.find-index":"sVmK","core-js/modules/es7.array.flat-map":"I8vV","core-js/modules/es6.array.from":"RRcs","core-js/modules/es7.array.includes":"TLss","core-js/modules/es6.array.iterator":"wVEN","core-js/modules/es6.array.of":"RB6b","core-js/modules/es6.array.sort":"nrVf","core-js/modules/es6.array.species":"smn3","core-js/modules/es6.date.to-json":"Gj6n","core-js/modules/es6.date.to-primitive":"jQnQ","core-js/modules/es6.function.has-instance":"a7bX","core-js/modules/es6.function.name":"N3yi","core-js/modules/es6.map":"ioKM","core-js/modules/es6.math.acosh":"py3M","core-js/modules/es6.math.asinh":"ob11","core-js/modules/es6.math.atanh":"iUik","core-js/modules/es6.math.cbrt":"YRuK","core-js/modules/es6.math.clz32":"R2Qc","core-js/modules/es6.math.cosh":"nEse","core-js/modules/es6.math.expm1":"AmoX","core-js/modules/es6.math.fround":"vmlq","core-js/modules/es6.math.hypot":"kLut","core-js/modules/es6.math.imul":"A8J8","core-js/modules/es6.math.log1p":"qtpC","core-js/modules/es6.math.log10":"VUW8","core-js/modules/es6.math.log2":"Jo9J","core-js/modules/es6.math.sign":"mZl9","core-js/modules/es6.math.sinh":"m0zb","core-js/modules/es6.math.tanh":"Fnqw","core-js/modules/es6.math.trunc":"tiOR","core-js/modules/es6.number.constructor":"kRGG","core-js/modules/es6.number.epsilon":"DzYy","core-js/modules/es6.number.is-finite":"FuY7","core-js/modules/es6.number.is-integer":"pwRL","core-js/modules/es6.number.is-nan":"SsgJ","core-js/modules/es6.number.is-safe-integer":"qVIE","core-js/modules/es6.number.max-safe-integer":"shx2","core-js/modules/es6.number.min-safe-integer":"ifBH","core-js/modules/es6.number.parse-float":"yjyf","core-js/modules/es6.number.parse-int":"Guno","core-js/modules/es6.object.assign":"K3Jy","core-js/modules/es7.object.define-getter":"guoQ","core-js/modules/es7.object.define-setter":"HMp9","core-js/modules/es7.object.entries":"gxEP","core-js/modules/es6.object.freeze":"EO7q","core-js/modules/es6.object.get-own-property-descriptor":"nIty","core-js/modules/es7.object.get-own-property-descriptors":"BQD8","core-js/modules/es6.object.get-own-property-names":"i23Y","core-js/modules/es6.object.get-prototype-of":"ud3u","core-js/modules/es7.object.lookup-getter":"HB2g","core-js/modules/es7.object.lookup-setter":"QF5J","core-js/modules/es6.object.prevent-extensions":"llMc","core-js/modules/es6.object.to-string":"zTK3","core-js/modules/es6.object.is":"MlqR","core-js/modules/es6.object.is-frozen":"Z1rp","core-js/modules/es6.object.is-sealed":"Fckj","core-js/modules/es6.object.is-extensible":"EYbC","core-js/modules/es6.object.keys":"m9aB","core-js/modules/es6.object.seal":"GYFR","core-js/modules/es6.object.set-prototype-of":"JGjq","core-js/modules/es7.object.values":"Ltmz","core-js/modules/es6.promise":"Pjta","core-js/modules/es7.promise.finally":"l1j0","core-js/modules/es6.reflect.apply":"F0Xu","core-js/modules/es6.reflect.construct":"JlFO","core-js/modules/es6.reflect.define-property":"S841","core-js/modules/es6.reflect.delete-property":"JRlJ","core-js/modules/es6.reflect.get":"kv8Z","core-js/modules/es6.reflect.get-own-property-descriptor":"zj1X","core-js/modules/es6.reflect.get-prototype-of":"d0aC","core-js/modules/es6.reflect.has":"OWTq","core-js/modules/es6.reflect.is-extensible":"deHu","core-js/modules/es6.reflect.own-keys":"e6SV","core-js/modules/es6.reflect.prevent-extensions":"BmyK","core-js/modules/es6.reflect.set":"K46i","core-js/modules/es6.reflect.set-prototype-of":"L5z5","core-js/modules/es6.regexp.constructor":"BenF","core-js/modules/es6.regexp.flags":"pDhD","core-js/modules/es6.regexp.match":"RTfC","core-js/modules/es6.regexp.replace":"KGao","core-js/modules/es6.regexp.split":"aOHf","core-js/modules/es6.regexp.search":"zOab","core-js/modules/es6.regexp.to-string":"iflU","core-js/modules/es6.set":"coyu","core-js/modules/es6.symbol":"uVn9","core-js/modules/es7.symbol.async-iterator":"DlMC","core-js/modules/es6.string.anchor":"USd7","core-js/modules/es6.string.big":"c1D0","core-js/modules/es6.string.blink":"Ee86","core-js/modules/es6.string.bold":"ry39","core-js/modules/es6.string.code-point-at":"zR9y","core-js/modules/es6.string.ends-with":"zRn7","core-js/modules/es6.string.fixed":"AHLq","core-js/modules/es6.string.fontcolor":"H7V0","core-js/modules/es6.string.fontsize":"Dx83","core-js/modules/es6.string.from-code-point":"xSM3","core-js/modules/es6.string.includes":"fH7p","core-js/modules/es6.string.italics":"fRhg","core-js/modules/es6.string.iterator":"tbKg","core-js/modules/es6.string.link":"Aaz0","core-js/modules/es7.string.pad-start":"SWNE","core-js/modules/es7.string.pad-end":"n20m","core-js/modules/es6.string.raw":"t29D","core-js/modules/es6.string.repeat":"C85R","core-js/modules/es6.string.small":"qBr3","core-js/modules/es6.string.starts-with":"w2SA","core-js/modules/es6.string.strike":"eNyu","core-js/modules/es6.string.sub":"BVLK","core-js/modules/es6.string.sup":"kMsL","core-js/modules/es7.string.trim-left":"ppxd","core-js/modules/es7.string.trim-right":"hxx1","core-js/modules/es6.typed.array-buffer":"NJ0a","core-js/modules/es6.typed.int8-array":"wqMZ","core-js/modules/es6.typed.uint8-array":"QTtY","core-js/modules/es6.typed.uint8-clamped-array":"Kqgs","core-js/modules/es6.typed.int16-array":"fEGw","core-js/modules/es6.typed.uint16-array":"xyd6","core-js/modules/es6.typed.int32-array":"hIko","core-js/modules/es6.typed.uint32-array":"tNPN","core-js/modules/es6.typed.float32-array":"wisA","core-js/modules/es6.typed.float64-array":"mbTX","core-js/modules/es6.weak-map":"D6DP","core-js/modules/es6.weak-set":"bRUR","core-js/modules/web.timers":"OTsy","core-js/modules/web.immediate":"hZLH","core-js/modules/web.dom.iterable":"v6Aj","regenerator-runtime/runtime":"QVnC","stats.js/src/Stats":"RDO9","dat.gui":"KkZG","three":"dKqR","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/utils/BufferGeometryUtils.js":"Jcll","../src/index.js":"uBxZ"}]},{},["ODOB"], null)
\ No newline at end of file
diff --git a/example/bundle/sculpt.html b/example/bundle/sculpt.html
index 99f8afeba..47c8f4d3a 100644
--- a/example/bundle/sculpt.html
+++ b/example/bundle/sculpt.html
@@ -1,38 +1 @@
-<!DOCTYPE html>
-<html>
-<head>
-    <title>THREE.js BVH Geometry Sculpting</title>
-    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
-
-    <style>html, body {
-            padding: 0;
-            margin: 0;
-            overflow: hidden;
-        }
-
-        canvas {
-            width: 100%;
-            height: 100%;
-        }
-
-		#info {
-			position: absolute;
-			top: 0;
-			width: 100%;
-			color: white;
-			font-family: monospace;
-			text-align: center;
-			padding: 5px 0;
-		}
-
-		a {
-			color: #eee;
-		}</style>
-</head>
-<body>
-	<div id="info">
-		Inspired by and Matcap texture from <a href="https://github.com/stephomi/sculptgl">SculptGL</a>.
-	</div>
-    <script src="sculpt.493e9c78.js"></script>
-</body>
-</html>
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Sculpting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#info{position:absolute;top:0;width:100%;color:#fff;font-family:monospace;text-align:center;padding:5px 0}a{color:#eee}</style></head><body> <div id="info"> Inspired by and Matcap texture from <a href="https://github.com/stephomi/sculptgl">SculptGL</a>. </div> <script src="sculpt.493e9c78.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/selection.383a520f.js b/example/bundle/selection.383a520f.js
index 62d515583..258a79102 100644
--- a/example/bundle/selection.383a520f.js
+++ b/example/bundle/selection.383a520f.js
@@ -14,7 +14,7 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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 },{}],"IMAa":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
 },{"three":"dKqR","./MeshBVHNode.js":"qYFu","./Utils/ArrayBoxUtilities.js":"a4zN","./Constants.js":"tuIt"}],"GlCc":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
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@@ -30,13 +30,11 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return h(this,r)}}function h(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,b=new t.Box3,m=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e._oldDepth=-1,e.mesh=t,e._boundsTree=null,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this;this._oldDepth=this.depth,this._boundsTree=this.mesh.geometry.boundsTree;var o=0;for(this._boundsTree&&this._boundsTree.traverse(function(n,i,u,s,c){var a=i||c;if(n>=r.depth)return!0;if(n===r.depth-1||a){var l=o<r.children.length?r.children[o]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),o++,(0,e.arrayToBox)(u,b),b.getCenter(l.position),l.scale.subVectors(b.max,b.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>o;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new m(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),_=g;exports.default=_;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function 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i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
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 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
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diff --git a/example/bundle/shapecast.b93a7fe2.js b/example/bundle/shapecast.b93a7fe2.js
index 3fd91cae4..d7d184790 100644
--- a/example/bundle/shapecast.b93a7fe2.js
+++ b/example/bundle/shapecast.b93a7fe2.js
@@ -538,13 +538,13 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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 },{}],"jNwr":[function(require,module,exports) {
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+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"tuIt":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.CONTAINED=exports.INTERSECTED=exports.NOT_INTERSECTED=exports.SAH=exports.AVERAGE=exports.CENTER=void 0;var r=0;exports.CENTER=r;var E=1;exports.AVERAGE=E;var e=2;exports.SAH=e;var t=0;exports.NOT_INTERSECTED=t;var o=1;exports.INTERSECTED=o;var s=2;exports.CONTAINED=s;
 },{}],"qYFu":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
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@@ -560,12 +560,10 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/ArrayBoxUtilities.js":"a4zN","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"auUu":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycastBuffer=l,exports.raycastFirstBuffer=f,exports.setBuffer=m,exports.clearBuffer=T,exports.intersectsGeometryBuffer=exports.shapecastBuffer=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,u=new e.Vector3,s=["x","y","z"];function l(e,t,n,i,a){var o=2*e,s=g,f=d,p=y;!(65535!==f[o+15])?(0,r.intersectTris)(t,t.geometry,n,i,p[e+6],f[o+14],a):(c(e+8,s,i,u)&&l(e+8,t,n,i,a),c(p[e+6],s,i,u)&&l(p[e+6],t,n,i,a))}function f(e,t,n,i){var a=2*e,o=g,l=d,p=y;if(!(65535!==l[a+15]))return(0,r.intersectClosestTri)(t,t.geometry,n,i,p[e+6],l[a+14]);var x,v,B=p[e+7],m=s[B],T=i.direction[m]>=0;T?(x=e+8,v=p[e+6]):(x=p[e+6],v=e+8);var h=c(x,o,i,u)?f(x,t,n,i):null;if(h){var w=h.point[m];if(T?w<=o[v+B]:w>=o[v+B+3])return h}var b=c(v,o,i,u)?f(v,t,n,i):null;return h&&b?h.distance<=b.distance?h:b:h||b||null}var p=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function u(e,r,t,i,a,o,u){for(var s=t.index,l=t.attributes.position,f=3*e,p=3*(r+e);f<p;f+=3)if((0,n.setTriangle)(u,f,s,l),u.needsUpdate=!0,i(u,f,f+1,f+2,a,o))return!0;return!1}return function e(n,i,s){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,p=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,v=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function B(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var T=2*n,w=g,b=d,A=y;if(!(65535!==b[T+15])&&l){var M=i.geometry;return u(A[n+6],b[T+14],M,l,!1,p,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(f&&(O=v,h(S,w,q=c),h(z,w,O),U=f(q),(j=f(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=s(q,!(65535!==b[S+15]),U,p+1);if(E===a.CONTAINED){var F=i.geometry,G=B(S);D=u(G,m(S)-G,F,l,!0,p+1,x)}else D=E&&e(S,i,s,l,f,p+1,x,c,v);if(D)return!0;h(z,w,O=v);var _,P=s(O,!(65535!==b[z+15]),j,p+1);if(P===a.CONTAINED){var R=i.geometry,V=B(z);_=u(V,m(z)-V,R,l,!0,p+1,x)}else _=P&&e(z,i,s,l,f,p+1,x,c,v);return!!_}}();exports.shapecastBuffer=p;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,u=new e.Mesh,s=new e.Matrix4,l=new t.OrientedBox,f=new t.OrientedBox;return function e(t,i,p,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=2*t,B=g,m=d,T=y;if(null===c&&(p.boundingBox||p.computeBoundingBox(),l.set(p.boundingBox.min,p.boundingBox.max,x),l.update(),c=l),!!(65535!==m[v+15])){var w=t+8,b=T[t+6];return h(w,B,o),c.intersectsBox(o)&&e(w,i,p,x,c)?!0:(h(b,B,o),!(!c.intersectsBox(o)||!e(b,i,p,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=p.index,q=p.attributes.position,O=T[t+6],C=m[v+14];if(s.copy(x).invert(),p.boundsTree){h(t,B,f),f.matrix.copy(s),f.update(),u.geometry=p;var N=p.boundsTree.shapecast(u,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return u.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(s),r.b.applyMatrix4(s),r.c.applyMatrix4(s),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometryBuffer=x;var v,g,d,y,B=[];function m(e){v&&B.push(v),v=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function T(){v=null,g=null,d=null,y=null,B.length&&m(B.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"uNJb":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
diff --git a/umd/index.js b/umd/index.js
index 0d0118962..d32f910a5 100644
--- a/umd/index.js
+++ b/umd/index.js
@@ -627,23 +627,8 @@
 				node.left = left;
 				left.boundingData = new Float32Array( 6 );
 
-				if ( lazyGeneration ) {
-
-					getBounds( triangleBounds, lstart, lcount, left.boundingData );
-					left.continueGeneration = function () {
-
-						delete this.continueGeneration;
-						getCentroidBounds( triangleBounds, lstart, lcount, cacheCentroidBoundingData );
-						splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
-
-					};
-
-				} else {
-
-					getBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );
-					splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
-
-				}
+				getBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );
+				splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
 
 				// repeat for right
 				const right = new MeshBVHNode();
@@ -652,23 +637,8 @@
 				node.right = right;
 				right.boundingData = new Float32Array( 6 );
 
-				if ( lazyGeneration ) {
-
-					getBounds( triangleBounds, rstart, rcount, right.boundingData );
-					right.continueGeneration = function () {
-
-						delete this.continueGeneration;
-						getCentroidBounds( triangleBounds, rstart, rcount, cacheCentroidBoundingData );
-						splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
-
-					};
-
-				} else {
-
-					getBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );
-					splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
-
-				}
+				getBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );
+				splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
 
 			}
 
@@ -686,7 +656,6 @@
 		const verbose = options.verbose;
 		const maxLeafTris = options.maxLeafTris;
 		const strategy = options.strategy;
-		const lazyGeneration = options.lazyGeneration;
 		let reachedMaxDepth = false;
 
 		const roots = [];
@@ -746,6 +715,99 @@
 
 	}
 
+	const BYTES_PER_NODE = 6 * 4 + 4 + 4;
+
+	const IS_LEAFNODE_FLAG = 0xFFFF;
+
+	function buildPackedTree( geo, options ) {
+
+		// boundingData  				: 6 float32
+		// right / offset 				: 1 uint32
+		// splitAxis / isLeaf + count 	: 1 uint32 / 2 uint16
+		const roots = buildTree( geo, options );
+
+		let float32Array;
+		let uint32Array;
+		let uint16Array;
+		const packedRoots = [];
+		for ( let i = 0; i < roots.length; i ++ ) {
+
+			const root = roots[ i ];
+			let nodeCount = countNodes( root );
+
+			const buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );
+			float32Array = new Float32Array( buffer );
+			uint32Array = new Uint32Array( buffer );
+			uint16Array = new Uint16Array( buffer );
+			populateBuffer( 0, root );
+			packedRoots.push( buffer );
+
+		}
+
+		return packedRoots;
+
+		function countNodes( node ) {
+
+			if ( node.count ) {
+
+				return 1;
+
+			} else {
+
+				return 1 + countNodes( node.left ) + countNodes( node.right );
+
+			}
+
+		}
+
+		function populateBuffer( byteOffset, node ) {
+
+			const stride4Offset = byteOffset / 4;
+			const stride2Offset = byteOffset / 2;
+			const isLeaf = ! ! node.count;
+			const boundingData = node.boundingData;
+			for ( let i = 0; i < 6; i ++ ) {
+
+				float32Array[ stride4Offset + i ] = boundingData[ i ];
+
+			}
+
+			if ( isLeaf ) {
+
+				const offset = node.offset;
+				const count = node.count;
+				uint32Array[ stride4Offset + 6 ] = offset;
+				uint16Array[ stride2Offset + 14 ] = count;
+				uint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;
+				return byteOffset + BYTES_PER_NODE;
+
+			} else {
+
+				const left = node.left;
+				const right = node.right;
+				const splitAxis = node.splitAxis;
+
+				let nextUnusedPointer;
+				nextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );
+
+				if ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {
+
+					throw new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );
+
+				}
+
+				uint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;
+				nextUnusedPointer = populateBuffer( nextUnusedPointer, right );
+
+				uint32Array[ stride4Offset + 7 ] = splitAxis;
+				return nextUnusedPointer;
+
+			}
+
+		}
+
+	}
+
 	class SeparatingAxisBounds {
 
 		constructor() {
@@ -1948,42 +2010,37 @@
 
 	}
 
+	/* Generated from "castFunctions.template.js". Do not edit. */
+
 	const boundingBox = new three.Box3();
 	const boxIntersection = new three.Vector3();
 	const xyzFields$1 = [ 'x', 'y', 'z' ];
 
-	function intersectRay( node, ray, target ) {
-
-		arrayToBox( node.boundingData, boundingBox );
-
-		return ray.intersectBox( boundingBox, target );
-
-	}
-
-	function raycast( node, mesh, raycaster, ray, intersects ) {
-
-		if ( node.continueGeneration ) {
-
-			node.continueGeneration();
+	function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
 
-		}
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-		const isLeaf = ! ! node.count;
+		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 		if ( isLeaf ) {
 
-			intersectTris( mesh, mesh.geometry, raycaster, ray, node.offset, node.count, intersects );
+			const offset = uint32Array[ nodeIndex32 + 6 ];
+			const count = uint16Array[ nodeIndex16 + 14 ];
+
+			intersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );
 
 		} else {
 
-			if ( intersectRay( node.left, ray, boxIntersection ) ) {
+			const leftIndex = nodeIndex32 + 8;
+			if ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {
 
-				raycast( node.left, mesh, raycaster, ray, intersects );
+				raycast( leftIndex, mesh, raycaster, ray, intersects );
 
 			}
 
-			if ( intersectRay( node.right, ray, boxIntersection ) ) {
+			const rightIndex = uint32Array[ nodeIndex32 + 6 ];
+			if ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {
 
-				raycast( node.right, mesh, raycaster, ray, intersects );
+				raycast( rightIndex, mesh, raycaster, ray, intersects );
 
 			}
 
@@ -1991,25 +2048,22 @@
 
 	}
 
-	function raycastFirst( node, mesh, raycaster, ray ) {
-
-		if ( node.continueGeneration ) {
-
-			node.continueGeneration();
+	function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {
 
-		}
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-		const isLeaf = ! ! node.count;
+		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 		if ( isLeaf ) {
 
-			return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, node.offset, node.count );
+			const offset = uint32Array[ nodeIndex32 + 6 ];
+			const count = uint16Array[ nodeIndex16 + 14 ];
+			return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );
 
 		} else {
 
-
 			// consider the position of the split plane with respect to the oncoming ray; whichever direction
 			// the ray is coming from, look for an intersection among that side of the tree first
-			const splitAxis = node.splitAxis;
+			const splitAxis = uint32Array[ nodeIndex32 + 7 ];
 			const xyzAxis = xyzFields$1[ splitAxis ];
 			const rayDir = ray.direction[ xyzAxis ];
 			const leftToRight = rayDir >= 0;
@@ -2018,17 +2072,17 @@
 			let c1, c2;
 			if ( leftToRight ) {
 
-				c1 = node.left;
-				c2 = node.right;
+				c1 = nodeIndex32 + 8;
+				c2 = uint32Array[ nodeIndex32 + 6 ];
 
 			} else {
 
-				c1 = node.right;
-				c2 = node.left;
+				c1 = uint32Array[ nodeIndex32 + 6 ];
+				c2 = nodeIndex32 + 8;
 
 			}
 
-			const c1Intersection = intersectRay( c1, ray, boxIntersection );
+			const c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );
 			const c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;
 
 			// if we got an intersection in the first node and it's closer than the second node's bounding
@@ -2038,8 +2092,8 @@
 				// check if the point is within the second bounds
 				const point = c1Result.point[ xyzAxis ];
 				const isOutside = leftToRight ?
-					point <= c2.boundingData[ splitAxis ] :
-					point >= c2.boundingData[ splitAxis + 3 ];
+					point <= float32Array[ c2 + splitAxis ] : // min bounding data
+					point >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data
 
 				if ( isOutside ) {
 
@@ -2051,7 +2105,7 @@
 
 			// either there was no intersection in the first node, or there could still be a closer
 			// intersection in the second, so check the second node and then take the better of the two
-			const c2Intersection = intersectRay( c2, ray, boxIntersection );
+			const c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );
 			const c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;
 
 			if ( c1Result && c2Result ) {
@@ -2103,8 +2157,7 @@
 
 		}
 
-		return function shapecast(
-			node,
+		return function shapecast( nodeIndex32,
 			mesh,
 			intersectsBoundsFunc,
 			intersectsTriangleFunc = null,
@@ -2117,70 +2170,54 @@
 
 			// Define these inside the function so it has access to the local variables needed
 			// when converting to the buffer equivalents
-			function getLeftOffset( node ) {
-
-				if ( node.continueGeneration ) {
-
-					node.continueGeneration();
+			function getLeftOffset( nodeIndex32 ) {
 
-				}
-
-				while ( ! node.count ) {
+				let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-					node = node.left;
-					if ( /* skip */ node.continueGeneration ) {
+				// traverse until we find a leaf
+				while ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {
 
-						node.continueGeneration();
-
-					}
+					nodeIndex32 = nodeIndex32 + 8;
+					nodeIndex16 = nodeIndex32 * 2;
 
 				}
 
-				return node.offset;
+				return uint32Array[ nodeIndex32 + 6 ];
 
 			}
 
-			function getRightEndOffset( node ) {
+			function getRightEndOffset( nodeIndex32 ) {
 
-				if ( node.continueGeneration ) {
+				let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-					node.continueGeneration();
+				// traverse until we find a leaf
+				while ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {
 
-				}
-
-				while ( ! node.count ) {
-
-					node = node.right;
-					if ( /* skip */ node.continueGeneration ) {
-
-						node.continueGeneration();
-
-					}
+					// adjust offset to point to the right node
+					nodeIndex32 = uint32Array[ nodeIndex32 + 6 ];
+					nodeIndex16 = nodeIndex32 * 2;
 
 				}
 
-				return node.offset + node.count;
+				// return the end offset of the triangle range
+				return uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];
 
 			}
 
-			if ( node.continueGeneration ) {
-
-				node.continueGeneration();
-
-			}
+			let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-			const isLeaf = ! ! node.count;
+			const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 			if ( isLeaf && intersectsTriangleFunc ) {
 
 				const geometry = mesh.geometry;
-				const offset = node.offset;
-				const count = node.count;
+				const offset = uint32Array[ nodeIndex32 + 6 ];
+				const count = uint16Array[ nodeIndex16 + 14 ];
 				return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
 
 			} else {
 
-				const left = node.left;
-				const right = node.right;
+				const left = nodeIndex32 + 8;
+				const right = uint32Array[ nodeIndex32 + 6 ];
 				let c1 = left;
 				let c2 = right;
 
@@ -2191,8 +2228,9 @@
 					box1 = cachedBox1;
 					box2 = cachedBox2;
 
-					arrayToBox( c1.boundingData, box1 );
-					arrayToBox( c2.boundingData, box2 );
+					// bounding data is not offset
+					arrayToBox$1( c1, float32Array, box1 );
+					arrayToBox$1( c2, float32Array, box2 );
 
 					score1 = nodeScoreFunc( box1 );
 					score2 = nodeScoreFunc( box2 );
@@ -2217,11 +2255,11 @@
 				if ( ! box1 ) {
 
 					box1 = cachedBox1;
-					arrayToBox( c1.boundingData, box1 );
+					arrayToBox$1( c1, float32Array, box1 );
 
 				}
 
-				const isC1Leaf = ! ! c1.count;
+				const isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );
 				const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
 
 				let c1StopTraversal;
@@ -2257,9 +2295,9 @@
 				// Check box 2 intersection
 				// cached box2 will have been overwritten by previous traversal
 				box2 = cachedBox2;
-				arrayToBox( c2.boundingData, box2 );
+				arrayToBox$1( c2, float32Array, box2 );
 
-				const isC2Leaf = ! ! c2.count;
+				const isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );
 				const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
 
 				let c2StopTraversal;
@@ -2310,13 +2348,9 @@
 		const obb = new OrientedBox();
 		const obb2 = new OrientedBox();
 
-		return function intersectsGeometry( node, mesh, geometry, geometryToBvh, cachedObb = null ) {
-
-			if ( node.continueGeneration ) {
-
-				node.continueGeneration();
+		return function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
 
-			}
+			let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			if ( cachedObb === null ) {
 
@@ -2332,7 +2366,7 @@
 
 			}
 
-			const isLeaf = ! ! node.count;
+			const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 			if ( isLeaf ) {
 
 				const thisGeometry = mesh.geometry;
@@ -2342,8 +2376,8 @@
 				const index = geometry.index;
 				const pos = geometry.attributes.position;
 
-				const offset = node.offset;
-				const count = node.count;
+				const offset = uint32Array[ nodeIndex32 + 6 ];
+				const count = uint16Array[ nodeIndex16 + 14 ];
 
 				// get the inverse of the geometry matrix so we can transform our triangles into the
 				// geometry space we're trying to test. We assume there are fewer triangles being checked
@@ -2352,7 +2386,7 @@
 
 				if ( geometry.boundsTree ) {
 
-					arrayToBox( node.boundingData, obb2 );
+					arrayToBox$1( nodeIndex32, float32Array, obb2 );
 					obb2.matrix.copy( invertedMat );
 					obb2.update();
 
@@ -2414,18 +2448,17 @@
 
 			} else {
 
-				const left = node.left;
-				const right = node.right;
+				const left = nodeIndex32 + 8;
+				const right = uint32Array[ nodeIndex32 + 6 ];
 
-				arrayToBox( left.boundingData, boundingBox );
+				arrayToBox$1( left, float32Array, boundingBox );
 				const leftIntersection =
 					cachedObb.intersectsBox( boundingBox ) &&
 					intersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );
 
 				if ( leftIntersection ) return true;
 
-
-				arrayToBox( right.boundingData, boundingBox );
+				arrayToBox$1( right, float32Array, boundingBox );
 				const rightIntersection =
 					cachedObb.intersectsBox( boundingBox ) &&
 					intersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );
@@ -2440,710 +2473,254 @@
 
 	} )();
 
-	const boundingBox$1 = new three.Box3();
-	const boxIntersection$1 = new three.Vector3();
-	const xyzFields$2 = [ 'x', 'y', 'z' ];
+	function intersectRay( nodeIndex32, array, ray, target ) {
+
+		arrayToBox$1( nodeIndex32, array, boundingBox );
+		return ray.intersectBox( boundingBox, target );
 
-	function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects ) {
+	}
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+	const bufferStack = [];
+	let _prevBuffer;
+	let _float32Array;
+	let _uint16Array;
+	let _uint32Array;
+	function setBuffer( buffer ) {
 
-		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
-		if ( isLeaf ) {
+		if ( _prevBuffer ) {
 
-			intersectTris( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ], intersects );
+			bufferStack.push( _prevBuffer );
 
-		} else {
+		}
 
-			if ( intersectRayBuffer( /* node left */ stride4Offset + 8, float32Array, ray, boxIntersection$1 ) ) {
+		_prevBuffer = buffer;
+		_float32Array = new Float32Array( buffer );
+		_uint16Array = new Uint16Array( buffer );
+		_uint32Array = new Uint32Array( buffer );
 
-				raycastBuffer( /* node left */ stride4Offset + 8, mesh, raycaster, ray, intersects );
+	}
 
-			}
+	function clearBuffer() {
 
-			if ( intersectRayBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], float32Array, ray, boxIntersection$1 ) ) {
+		_prevBuffer = null;
+		_float32Array = null;
+		_uint16Array = null;
+		_uint32Array = null;
 
-				raycastBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], mesh, raycaster, ray, intersects );
+		if ( bufferStack.length ) {
 
-			}
+			setBuffer( bufferStack.pop() );
 
 		}
 
 	}
 
-	function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
+	function arrayToBox$1( nodeIndex32, array, target ) {
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+		target.min.x = array[ nodeIndex32 ];
+		target.min.y = array[ nodeIndex32 + 1 ];
+		target.min.z = array[ nodeIndex32 + 2 ];
 
-		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
-		if ( isLeaf ) {
+		target.max.x = array[ nodeIndex32 + 3 ];
+		target.max.y = array[ nodeIndex32 + 4 ];
+		target.max.z = array[ nodeIndex32 + 5 ];
 
-			return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ] );
+	}
 
-		} else {
+	const SKIP_GENERATION = Symbol( 'skip tree generation' );
 
-			// consider the position of the split plane with respect to the oncoming ray; whichever direction
-			// the ray is coming from, look for an intersection among that side of the tree first
-			const splitAxis = /* node splitAxis */ uint32Array[ stride4Offset + 7 ];
-			const xyzAxis = xyzFields$2[ splitAxis ];
-			const rayDir = ray.direction[ xyzAxis ];
-			const leftToRight = rayDir >= 0;
+	const obb = new OrientedBox();
+	const temp = new three.Vector3();
+	const tri2 = new SeparatingAxisTriangle();
+	const temp1 = new three.Vector3();
+	const temp2 = new three.Vector3();
 
-			// c1 is the child to check first
-			let c1, c2;
-			if ( leftToRight ) {
+	class MeshBVH {
 
-				c1 = /* node left */ stride4Offset + 8;
-				c2 = /* node right */ uint32Array[ stride4Offset + 6 ];
+		static serialize( bvh, geometry, copyIndexBuffer = true ) {
 
-			} else {
+			const rootData = bvh._roots;
+			const indexAttribute = geometry.getIndex();
+			const result = {
+				roots: rootData,
+				index: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,
+			};
 
-				c1 = /* node right */ uint32Array[ stride4Offset + 6 ];
-				c2 = /* node left */ stride4Offset + 8;
+			return result;
 
-			}
+		}
 
-			const c1Intersection = intersectRayBuffer( c1, float32Array, ray, boxIntersection$1 );
-			const c1Result = c1Intersection ? raycastFirstBuffer( c1, mesh, raycaster, ray ) : null;
+		static deserialize( data, geometry, setIndex = true ) {
 
-			// if we got an intersection in the first node and it's closer than the second node's bounding
-			// box, we don't need to consider the second node because it couldn't possibly be a better result
-			if ( c1Result ) {
+			const { index, roots } = data;
+			const bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );
+			bvh._roots = roots;
 
-				// check if the point is within the second bounds
-				const point = c1Result.point[ xyzAxis ];
-				const isOutside = leftToRight ?
-					point <= /* c2 boundingData */ float32Array[ c2 + splitAxis ] :
-					point >= /* c2 boundingData */ float32Array[ c2 + splitAxis + 3 ];
+			if ( setIndex ) {
 
-				if ( isOutside ) {
+				const indexAttribute = geometry.getIndex();
+				if ( indexAttribute === null ) {
 
-					return c1Result;
+					const newIndex = new three.BufferAttribute( data.index, 1, false );
+					geometry.setIndex( newIndex );
+
+				} else if ( indexAttribute.array !== index ) {
+
+					indexAttribute.array.set( index );
+					indexAttribute.needsUpdate = true;
 
 				}
 
 			}
 
-			// either there was no intersection in the first node, or there could still be a closer
-			// intersection in the second, so check the second node and then take the better of the two
-			const c2Intersection = intersectRayBuffer( c2, float32Array, ray, boxIntersection$1 );
-			const c2Result = c2Intersection ? raycastFirstBuffer( c2, mesh, raycaster, ray ) : null;
+			return bvh;
 
-			if ( c1Result && c2Result ) {
+		}
 
-				return c1Result.distance <= c2Result.distance ? c1Result : c2Result;
+		constructor( geo, options = {} ) {
 
-			} else {
+			if ( ! geo.isBufferGeometry ) {
 
-				return c1Result || c2Result || null;
+				throw new Error( 'MeshBVH: Only BufferGeometries are supported.' );
 
-			}
+			} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {
 
-		}
+				throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );
 
-	}
+			} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {
 
-	const shapecastBuffer = ( function () {
+				throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );
 
-		const _triangle = new SeparatingAxisTriangle();
-		const _cachedBox1 = new three.Box3();
-		const _cachedBox2 = new three.Box3();
+			}
 
-		function iterateOverTriangles(
-			offset,
-			count,
-			geometry,
-			intersectsTriangleFunc,
-			contained,
-			depth,
-			triangle
-		) {
+			// default options
+			options = Object.assign( {
 
-			const index = geometry.index;
-			const pos = geometry.attributes.position;
-			for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+				strategy: CENTER,
+				maxDepth: 40,
+				maxLeafTris: 10,
+				verbose: true,
 
-				setTriangle( triangle, i, index, pos );
-				triangle.needsUpdate = true;
+				// undocumented options
 
-				if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
+				// Whether to skip generating the tree. Used for deserialization.
+				[ SKIP_GENERATION ]: false
 
-					return true;
+			}, options );
+			options.strategy = Math.max( 0, Math.min( 2, options.strategy ) );
 
-				}
+			this._roots = null;
+			if ( ! options[ SKIP_GENERATION ] ) {
 
-			}
+				this._roots = buildPackedTree( geo, options );
 
-			return false;
+			}
 
 		}
 
-		return function shapecastBuffer( stride4Offset,
-			mesh,
-			intersectsBoundsFunc,
-			intersectsTriangleFunc = null,
-			nodeScoreFunc = null,
-			depth = 0,
-			triangle = _triangle,
-			cachedBox1 = _cachedBox1,
-			cachedBox2 = _cachedBox2
-		) {
+		refit( geometry ) {
 
-			// Define these inside the function so it has access to the local variables needed
-			// when converting to the buffer equivalents
-			function getLeftOffsetBuffer( stride4Offset ) {
+			const indexArr = geometry.index.array;
+			const posArr = geometry.attributes.position.array;
+			let buffer, uint32Array, uint16Array, float32Array;
+			const roots = this._roots;
+			for ( let i = 0, l = roots.length; i < l; i ++ ) {
 
-				let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+				buffer = roots[ i ];
+				uint32Array = new Uint32Array( buffer );
+				uint16Array = new Uint16Array( buffer );
+				float32Array = new Float32Array( buffer );
+				_traverse( 0 );
 
-				while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
+			}
 
-					/* node */ stride4Offset = /* node left */ stride4Offset + 8, stride2Offset = stride4Offset * 2;
+			function _traverse( node32Index ) {
 
-				}
-
-				return /* node offset */ uint32Array[ stride4Offset + 6 ];
-
-			}
-
-			function getRightEndOffsetBuffer( stride4Offset ) {
-
-				let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
-				while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
-
-					/* node */ stride4Offset = /* node right */ uint32Array[ stride4Offset + 6 ], stride2Offset = stride4Offset * 2;
-
-				}
-
-				return /* node offset */ uint32Array[ stride4Offset + 6 ] + /* node count */ uint16Array[ stride2Offset + 14 ];
-
-			}
-
-			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
-			const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
-			if ( isLeaf && intersectsTriangleFunc ) {
-
-				const geometry = mesh.geometry;
-				const offset = /* node offset */ uint32Array[ stride4Offset + 6 ];
-				const count = /* node count */ uint16Array[ stride2Offset + 14 ];
-				return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
-
-			} else {
-
-				const left = /* node left */ stride4Offset + 8;
-				const right = /* node right */ uint32Array[ stride4Offset + 6 ];
-				let c1 = left;
-				let c2 = right;
-
-				let score1, score2;
-				let box1, box2;
-				if ( nodeScoreFunc ) {
-
-					box1 = cachedBox1;
-					box2 = cachedBox2;
+				const node16Index = node32Index * 2;
+				const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
+				if ( isLeaf ) {
 
-					arrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );
-					arrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );
+					const offset = uint32Array[ node32Index + 6 ];
+					const count = uint16Array[ node16Index + 14 ];
 
-					score1 = nodeScoreFunc( box1 );
-					score2 = nodeScoreFunc( box2 );
+					let minx = Infinity;
+					let miny = Infinity;
+					let minz = Infinity;
+					let maxx = - Infinity;
+					let maxy = - Infinity;
+					let maxz = - Infinity;
+					for ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {
 
-					if ( score2 < score1 ) {
+						const index3 = indexArr[ i ] * 3;
+						const x = posArr[ index3 + 0 ];
+						const y = posArr[ index3 + 1 ];
+						const z = posArr[ index3 + 2 ];
 
-						c1 = right;
-						c2 = left;
+						if ( x < minx ) minx = x;
+						if ( x > maxx ) maxx = x;
 
-						const temp = score1;
-						score1 = score2;
-						score2 = temp;
+						if ( y < miny ) miny = y;
+						if ( y > maxy ) maxy = y;
 
-						box1 = box2;
-						// box2 is always set before use below
+						if ( z < minz ) minz = z;
+						if ( z > maxz ) maxz = z;
 
 					}
 
-				}
-
-				// Check box 1 intersection
-				if ( ! box1 ) {
-
-					box1 = cachedBox1;
-					arrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );
-
-				}
-
-				const isC1Leaf = ! /* c1 count */ ( uint16Array[ c1 + 15 ] !== 0xffff );
-				const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
-
-				let c1StopTraversal;
-				if ( c1Intersection === CONTAINED ) {
-
-					const geometry = mesh.geometry;
-					const offset = getLeftOffsetBuffer( c1 );
-					const end = getRightEndOffsetBuffer( c1 );
-					const count = end - offset;
-
-					c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+					if (
+						float32Array[ node32Index + 0 ] !== minx ||
+						float32Array[ node32Index + 1 ] !== miny ||
+						float32Array[ node32Index + 2 ] !== minz ||
 
-				} else {
+						float32Array[ node32Index + 3 ] !== maxx ||
+						float32Array[ node32Index + 4 ] !== maxy ||
+						float32Array[ node32Index + 5 ] !== maxz
+					) {
 
-					c1StopTraversal =
-						c1Intersection &&
-						shapecastBuffer(
-							c1,
-							mesh,
-							intersectsBoundsFunc,
-							intersectsTriangleFunc,
-							nodeScoreFunc,
-							depth + 1,
-							triangle,
-							cachedBox1,
-							cachedBox2
-						);
+						float32Array[ node32Index + 0 ] = minx;
+						float32Array[ node32Index + 1 ] = miny;
+						float32Array[ node32Index + 2 ] = minz;
 
-				}
-
-				if ( c1StopTraversal ) return true;
-
-				// Check box 2 intersection
-				// cached box2 will have been overwritten by previous traversal
-				box2 = cachedBox2;
-				arrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );
-
-				const isC2Leaf = ! /* c2 count */ ( uint16Array[ c2 + 15 ] !== 0xffff );
-				const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
-
-				let c2StopTraversal;
-				if ( c2Intersection === CONTAINED ) {
-
-					const geometry = mesh.geometry;
-					const offset = getLeftOffsetBuffer( c2 );
-					const end = getRightEndOffsetBuffer( c2 );
-					const count = end - offset;
-
-					c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
-
-				} else {
-
-					c2StopTraversal =
-						c2Intersection &&
-						shapecastBuffer(
-							c2,
-							mesh,
-							intersectsBoundsFunc,
-							intersectsTriangleFunc,
-							nodeScoreFunc,
-							depth + 1,
-							triangle,
-							cachedBox1,
-							cachedBox2
-						);
-
-				}
-
-				if ( c2StopTraversal ) return true;
-
-				return false;
-
-			}
-
-		};
+						float32Array[ node32Index + 3 ] = maxx;
+						float32Array[ node32Index + 4 ] = maxy;
+						float32Array[ node32Index + 5 ] = maxz;
 
-	} )();
-
-	const intersectsGeometryBuffer = ( function () {
-
-		const triangle = new SeparatingAxisTriangle();
-		const triangle2 = new SeparatingAxisTriangle();
-		const cachedMesh = new three.Mesh();
-		const invertedMat = new three.Matrix4();
-
-		const obb = new OrientedBox();
-		const obb2 = new OrientedBox();
-
-		return function intersectsGeometryBuffer( stride4Offset, mesh, geometry, geometryToBvh, cachedObb = null ) {
-
-			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
-			if ( cachedObb === null ) {
-
-				if ( ! geometry.boundingBox ) {
-
-					geometry.computeBoundingBox();
-
-				}
-
-				obb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );
-				obb.update();
-				cachedObb = obb;
-
-			}
-
-			const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
-			if ( isLeaf ) {
-
-				const thisGeometry = mesh.geometry;
-				const thisIndex = thisGeometry.index;
-				const thisPos = thisGeometry.attributes.position;
-
-				const index = geometry.index;
-				const pos = geometry.attributes.position;
-
-				const offset = /* node offset */ uint32Array[ stride4Offset + 6 ];
-				const count = /* node count */ uint16Array[ stride2Offset + 14 ];
-
-				// get the inverse of the geometry matrix so we can transform our triangles into the
-				// geometry space we're trying to test. We assume there are fewer triangles being checked
-				// here.
-				invertedMat.copy( geometryToBvh ).invert();
-
-				if ( geometry.boundsTree ) {
-
-					arrayToBoxBuffer( /* node boundingData */ stride4Offset, float32Array, obb2 );
-					obb2.matrix.copy( invertedMat );
-					obb2.update();
-
-					cachedMesh.geometry = geometry;
-					const res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
-
-						tri.a.applyMatrix4( geometryToBvh );
-						tri.b.applyMatrix4( geometryToBvh );
-						tri.c.applyMatrix4( geometryToBvh );
-						tri.update();
-
-						for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
-
-							// this triangle needs to be transformed into the current BVH coordinate frame
-							setTriangle( triangle2, i, thisIndex, thisPos );
-							triangle2.update();
-							if ( tri.intersectsTriangle( triangle2 ) ) {
-
-								return true;
-
-							}
+						return true;
 
-						}
+					} else {
 
 						return false;
 
-					} );
-					cachedMesh.geometry = null;
-
-					return res;
+					}
 
 				} else {
 
-					for ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {
-
-						// this triangle needs to be transformed into the current BVH coordinate frame
-						setTriangle( triangle, i, thisIndex, thisPos );
-						triangle.a.applyMatrix4( invertedMat );
-						triangle.b.applyMatrix4( invertedMat );
-						triangle.c.applyMatrix4( invertedMat );
-						triangle.update();
+					const left = node32Index + 8;
+					const right = uint32Array[ node32Index + 6 ];
 
-						for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
+					const leftChange = _traverse( left );
+					const rightChange = _traverse( right );
+					const didChange = leftChange || rightChange;
 
-							setTriangle( triangle2, i2, index, pos );
-							triangle2.update();
+					if ( didChange ) {
 
-							if ( triangle.intersectsTriangle( triangle2 ) ) {
+						for ( let i = 0; i < 3; i ++ ) {
 
-								return true;
+							const lefti = left + i;
+							const righti = right + i;
+							const minLeftValue = float32Array[ lefti ];
+							const maxLeftValue = float32Array[ lefti + 3 ];
+							const minRightValue = float32Array[ righti ];
+							const maxRightValue = float32Array[ righti + 3 ];
 
-							}
+							float32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;
+							float32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;
 
 						}
 
 					}
 
-				}
-
-			} else {
-
-				const left = /* node left */ stride4Offset + 8;
-				const right = /* node right */ uint32Array[ stride4Offset + 6 ];
-
-				arrayToBoxBuffer( /* left boundingData */ left, float32Array, boundingBox$1 );
-				const leftIntersection =
-					cachedObb.intersectsBox( boundingBox$1 ) &&
-					intersectsGeometryBuffer( left, mesh, geometry, geometryToBvh, cachedObb );
-
-				if ( leftIntersection ) return true;
-
-				arrayToBoxBuffer( /* right boundingData */ right, float32Array, boundingBox$1 );
-				const rightIntersection =
-					cachedObb.intersectsBox( boundingBox$1 ) &&
-					intersectsGeometryBuffer( right, mesh, geometry, geometryToBvh, cachedObb );
-
-				if ( rightIntersection ) return true;
-
-				return false;
-
-			}
-
-		};
-
-	} )();
-
-	function intersectRayBuffer( stride4Offset, array, ray, target ) {
-
-		arrayToBoxBuffer( stride4Offset, array, boundingBox$1 );
-		return ray.intersectBox( boundingBox$1, target );
-
-	}
-
-	const bufferStack = [];
-	let _prevBuffer;
-	let _float32Array;
-	let _uint16Array;
-	let _uint32Array;
-	function setBuffer( buffer ) {
-
-		if ( _prevBuffer ) {
-
-			bufferStack.push( _prevBuffer );
-
-		}
-
-		_prevBuffer = buffer;
-		_float32Array = new Float32Array( buffer );
-		_uint16Array = new Uint16Array( buffer );
-		_uint32Array = new Uint32Array( buffer );
-
-	}
-
-	function clearBuffer() {
-
-		_prevBuffer = null;
-		_float32Array = null;
-		_uint16Array = null;
-		_uint32Array = null;
-
-		if ( bufferStack.length ) {
-
-			setBuffer( bufferStack.pop() );
-
-		}
-
-	}
-
-	function arrayToBoxBuffer( stride4Offset, array, target ) {
-
-		target.min.x = array[ stride4Offset ];
-		target.min.y = array[ stride4Offset + 1 ];
-		target.min.z = array[ stride4Offset + 2 ];
-
-		target.max.x = array[ stride4Offset + 3 ];
-		target.max.y = array[ stride4Offset + 4 ];
-		target.max.z = array[ stride4Offset + 5 ];
-
-	}
-
-	// boundingData  				: 6 float32
-	// right / offset 				: 1 uint32
-	// splitAxis / isLeaf + count 	: 1 uint32 / 2 uint16
-	const BYTES_PER_NODE = 6 * 4 + 4 + 4;
-	const IS_LEAFNODE_FLAG = 0xFFFF;
-	const SKIP_GENERATION = Symbol( 'skip tree generation' );
-
-	const obb = new OrientedBox();
-	const temp = new three.Vector3();
-	const tri2 = new SeparatingAxisTriangle();
-	const temp1 = new three.Vector3();
-	const temp2 = new three.Vector3();
-
-	class MeshBVH {
-
-		static serialize( bvh, geometry, copyIndexBuffer = true ) {
-
-			function finishTree( node ) {
-
-				if ( node.continueGeneration ) {
-
-					node.continueGeneration();
-
-				}
-
-				if ( ! node.count ) {
-
-					finishTree( node.left );
-					finishTree( node.right );
-
-				}
-
-			}
-
-			function countNodes( node ) {
-
-				if ( node.count ) {
-
-					return 1;
-
-				} else {
-
-					return 1 + countNodes( node.left ) + countNodes( node.right );
-
-				}
-
-			}
-
-			function populateBuffer( byteOffset, node ) {
-
-				const stride4Offset = byteOffset / 4;
-				const stride2Offset = byteOffset / 2;
-				const isLeaf = ! ! node.count;
-				const boundingData = node.boundingData;
-				for ( let i = 0; i < 6; i ++ ) {
-
-					float32Array[ stride4Offset + i ] = boundingData[ i ];
-
-				}
-
-				if ( isLeaf ) {
-
-					const offset = node.offset;
-					const count = node.count;
-					uint32Array[ stride4Offset + 6 ] = offset;
-					uint16Array[ stride2Offset + 14 ] = count;
-					uint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;
-					return byteOffset + BYTES_PER_NODE;
-
-				} else {
-
-					const left = node.left;
-					const right = node.right;
-					const splitAxis = node.splitAxis;
-
-					let nextUnusedPointer;
-					nextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );
-
-					uint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;
-					nextUnusedPointer = populateBuffer( nextUnusedPointer, right );
-
-					uint32Array[ stride4Offset + 7 ] = splitAxis;
-					return nextUnusedPointer;
-
-				}
-
-			}
-
-			let float32Array;
-			let uint32Array;
-			let uint16Array;
-
-			const roots = bvh._roots;
-			let rootData;
-
-			if ( bvh._isPacked ) {
-
-				rootData = roots;
-
-			} else {
-
-				rootData = [];
-				for ( let i = 0; i < roots.length; i ++ ) {
-
-					const root = roots[ i ];
-					finishTree( root );
-					let nodeCount = countNodes( root );
-
-					const buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );
-					float32Array = new Float32Array( buffer );
-					uint32Array = new Uint32Array( buffer );
-					uint16Array = new Uint16Array( buffer );
-					populateBuffer( 0, root );
-					rootData.push( buffer );
-
-				}
-
-			}
-
-			const indexAttribute = geometry.getIndex();
-			const result = {
-				roots: rootData,
-				index: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,
-			};
-
-			return result;
-
-		}
-
-		static deserialize( data, geometry, setIndex = true ) {
-
-			const { index, roots } = data;
-			const bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );
-			bvh._roots = roots;
-			bvh._isPacked = true;
-
-			if ( setIndex ) {
-
-				const indexAttribute = geometry.getIndex();
-				if ( indexAttribute === null ) {
-
-					const newIndex = new three.BufferAttribute( data.index, 1, false );
-					geometry.setIndex( newIndex );
-
-				} else if ( indexAttribute.array !== index ) {
-
-					indexAttribute.array.set( index );
-					indexAttribute.needsUpdate = true;
-
-				}
-
-			}
-
-			return bvh;
-
-		}
-
-		constructor( geo, options = {} ) {
-
-			if ( ! geo.isBufferGeometry ) {
-
-				throw new Error( 'MeshBVH: Only BufferGeometries are supported.' );
-
-			} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {
-
-				throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );
-
-			} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {
-
-				throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );
-
-			}
-
-			// default options
-			options = Object.assign( {
-
-				strategy: CENTER,
-				maxDepth: 40,
-				maxLeafTris: 10,
-				verbose: true,
-				lazyGeneration: true,
-
-				// undocumented options
-
-				// whether to the pack the data as a buffer or not. The data
-				// will not be packed if lazyGeneration is true.
-				packData: true,
-
-				// Whether to skip generating the tree. Used for deserialization.
-				[ SKIP_GENERATION ]: false
-
-			}, options );
-			options.strategy = Math.max( 0, Math.min( 2, options.strategy ) );
-
-			this._isPacked = false;
-			this._roots = null;
-			if ( ! options[ SKIP_GENERATION ] ) {
-
-				this._roots = buildTree( geo, options );
-				if ( ! options.lazyGeneration && options.packData ) {
-
-					this._roots = MeshBVH.serialize( this, geo, false ).roots;
-					this._isPacked = true;
+					return didChange;
 
 				}
 
@@ -3153,62 +2730,32 @@
 
 		traverse( callback, rootIndex = 0 ) {
 
-			if ( this._isPacked ) {
-
-				const buffer = this._roots[ rootIndex ];
-				const uint32Array = new Uint32Array( buffer );
-				const uint16Array = new Uint16Array( buffer );
-				_traverseBuffer( 0 );
-
-				function _traverseBuffer( stride4Offset, depth = 0 ) {
-
-					const stride2Offset = stride4Offset * 2;
-					const isLeaf = uint16Array[ stride2Offset + 15 ];
-					if ( isLeaf ) {
-
-						const offset = uint32Array[ stride4Offset + 6 ];
-						const count = uint16Array[ stride2Offset + 14 ];
-						callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), offset, count );
-
-					} else {
-
-						const left = stride4Offset + BYTES_PER_NODE / 4;
-						const right = uint32Array[ stride4Offset + 6 ];
-						const splitAxis = uint32Array[ stride4Offset + 7 ];
-						const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), splitAxis, false );
-
-						if ( ! stopTraversal ) {
-
-							_traverseBuffer( left, depth + 1 );
-							_traverseBuffer( right, depth + 1 );
-
-						}
-
-					}
-
-				}
-
-			} else {
+			const buffer = this._roots[ rootIndex ];
+			const uint32Array = new Uint32Array( buffer );
+			const uint16Array = new Uint16Array( buffer );
+			_traverse( 0 );
 
-				_traverseNode( this._roots[ rootIndex ] );
+			function _traverse( node32Index, depth = 0 ) {
 
-				function _traverseNode( node, depth = 0 ) {
-
-					const isLeaf = ! ! node.count;
-					if ( isLeaf ) {
-
-						callback( depth, isLeaf, node.boundingData, node.offset, node.count );
+				const node16Index = node32Index * 2;
+				const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
+				if ( isLeaf ) {
 
-					} else {
+					const offset = uint32Array[ node32Index + 6 ];
+					const count = uint16Array[ node16Index + 14 ];
+					callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );
 
-						const stopTraversal = callback( depth, isLeaf, node.boundingData, node.splitAxis, ! ! node.continueGeneration );
+				} else {
 
-						if ( ! stopTraversal ) {
+					const left = node32Index + BYTES_PER_NODE / 4;
+					const right = uint32Array[ node32Index + 6 ];
+					const splitAxis = uint32Array[ node32Index + 7 ];
+					const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );
 
-							if ( node.left ) _traverseNode( node.left, depth + 1 );
-							if ( node.right ) _traverseNode( node.right, depth + 1 );
+					if ( ! stopTraversal ) {
 
-						}
+						_traverse( left, depth + 1 );
+						_traverse( right, depth + 1 );
 
 					}
 
@@ -3221,43 +2768,24 @@
 		/* Core Cast Functions */
 		raycast( mesh, raycaster, ray, intersects ) {
 
-			const isPacked = this._isPacked;
 			for ( const root of this._roots ) {
 
-				if ( isPacked ) {
-
-					setBuffer( root );
-					raycastBuffer( 0, mesh, raycaster, ray, intersects );
-
-				} else {
-
-					raycast( root, mesh, raycaster, ray, intersects );
-
-				}
+				setBuffer( root );
+				raycast( 0, mesh, raycaster, ray, intersects );
 
 			}
 
-			isPacked && clearBuffer();
+			clearBuffer();
 
 		}
 
 		raycastFirst( mesh, raycaster, ray ) {
 
-			const isPacked = this._isPacked;
 			let closestResult = null;
 			for ( const root of this._roots ) {
 
-				let result;
-				if ( isPacked ) {
-
-					setBuffer( root );
-					result = raycastFirstBuffer( 0, mesh, raycaster, ray );
-
-				} else {
-
-					result = raycastFirst( root, mesh, raycaster, ray );
-
-				}
+				setBuffer( root );
+				const result = raycastFirst( 0, mesh, raycaster, ray );
 
 				if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
 
@@ -3267,7 +2795,7 @@
 
 			}
 
-			isPacked && clearBuffer();
+			clearBuffer();
 
 			return closestResult;
 
@@ -3275,20 +2803,11 @@
 
 		intersectsGeometry( mesh, geometry, geomToMesh ) {
 
-			const isPacked = this._isPacked;
 			let result = false;
 			for ( const root of this._roots ) {
 
-				if ( isPacked ) {
-
-					setBuffer( root );
-					result = intersectsGeometryBuffer( 0, mesh, geometry, geomToMesh );
-
-				} else {
-
-					result = intersectsGeometry( root, mesh, geometry, geomToMesh );
-
-				}
+				setBuffer( root );
+				result = intersectsGeometry( 0, mesh, geometry, geomToMesh );
 
 				if ( result ) {
 
@@ -3298,7 +2817,7 @@
 
 			}
 
-			isPacked && clearBuffer();
+			clearBuffer();
 
 			return result;
 
@@ -3306,20 +2825,11 @@
 
 		shapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {
 
-			const isPacked = this._isPacked;
 			let result = false;
 			for ( const root of this._roots ) {
 
-				if ( isPacked ) {
-
-					setBuffer( root );
-					result = shapecastBuffer( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
-
-				} else {
-
-					result = shapecast( root, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
-
-				}
+				setBuffer( root );
+				result = shapecast( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
 
 				if ( result ) {
 
@@ -3329,7 +2839,7 @@
 
 			}
 
-			isPacked && clearBuffer();
+			clearBuffer();
 
 			return result;
 
@@ -3519,7 +3029,7 @@
 
 	const wiremat = new three.LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );
 	const boxGeom = new three.Box3Helper().geometry;
-	let boundingBox$2 = new three.Box3();
+	let boundingBox$1 = new three.Box3();
 
 	class MeshBVHRootVisualizer extends three.Group {
 
@@ -3528,9 +3038,7 @@
 			super( 'MeshBVHRootVisualizer' );
 
 			this.depth = depth;
-			this._oldDepth = - 1;
 			this.mesh = mesh;
-			this._boundsTree = null;
 			this._group = group;
 
 			this.update();
@@ -3539,13 +3047,11 @@
 
 		update() {
 
-			this._oldDepth = this.depth;
-			this._boundsTree = this.mesh.geometry.boundsTree;
-
+			const boundsTree = this.mesh.geometry.boundsTree;
 			let requiredChildren = 0;
-			if ( this._boundsTree ) {
+			if ( boundsTree ) {
 
-				this._boundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
+				boundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
 
 					let isTerminal = isLeaf || countOrIsUnfinished;
 
@@ -3568,9 +3074,9 @@
 						}
 
 						requiredChildren ++;
-						arrayToBox( boundingData, boundingBox$2 );
-						boundingBox$2.getCenter( m.position );
-						m.scale.subVectors( boundingBox$2.max, boundingBox$2.min ).multiplyScalar( 0.5 );
+						arrayToBox( boundingData, boundingBox$1 );
+						boundingBox$1.getCenter( m.position );
+						m.scale.subVectors( boundingBox$1.max, boundingBox$1.min ).multiplyScalar( 0.5 );
 
 						if ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;
 						if ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;
@@ -3624,6 +3130,7 @@
 
 					let root = this._roots[ i ];
 					root.depth = this.depth;
+					root.mesh = this.mesh;
 					root.update();
 
 				}
@@ -3695,7 +3202,7 @@
 			splits: [ 0, 0, 0 ]
 		};
 
-		bvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
+		bvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {
 
 			result.total ++;
 			if ( isLeaf ) {
@@ -3703,8 +3210,8 @@
 				result.depth.min = Math.min( depth, result.depth.min );
 				result.depth.max = Math.max( depth, result.depth.max );
 
-				result.tris.min = Math.min( countOrIsUnfinished, result.tris.min );
-				result.tris.max = Math.max( countOrIsUnfinished, result.tris.max );
+				result.tris.min = Math.min( count, result.tris.min );
+				result.tris.max = Math.max( count, result.tris.max );
 
 			} else {
 
diff --git a/umd/index.js.map b/umd/index.js.map
index 9b95dffdf..479124390 100644
--- a/umd/index.js.map
+++ b/umd/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/castFunctions.js","../src/castFunctionsBuffer.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tif ( lazyGeneration ) {\r\n\r\n\t\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData );\r\n\t\t\t\tleft.continueGeneration = function () {\r\n\r\n\t\t\t\t\tdelete this.continueGeneration;\r\n\t\t\t\t\tgetCentroidBounds( triangleBounds, lstart, lcount, cacheCentroidBoundingData );\r\n\t\t\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t\t};\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tif ( lazyGeneration ) {\r\n\r\n\t\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData );\r\n\t\t\t\tright.continueGeneration = function () {\r\n\r\n\t\t\t\t\tdelete this.continueGeneration;\r\n\t\t\t\t\tgetCentroidBounds( triangleBounds, rstart, rcount, cacheCentroidBoundingData );\r\n\t\t\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t\t};\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tconst lazyGeneration = options.lazyGeneration;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t// if the geometry doesn't have a bounding box, then let's politely populate it using\r\n\t// the work we did to determine the BVH root bounds\r\n\tif ( geo.boundingBox == null ) {\r\n\r\n\t\tconst rootBox = new Box3();\r\n\t\tgeo.boundingBox = new Box3();\r\n\r\n\t\tfor ( let root of roots ) {\r\n\r\n\t\t\tgeo.boundingBox.union( arrayToBox( root.boundingData, rootBox ) );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nfunction intersectRay( node, ray, target ) {\r\n\r\n\tarrayToBox( node.boundingData, boundingBox );\r\n\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nexport function raycast( node, mesh, raycaster, ray, intersects ) {\r\n\r\n\tif ( node.continueGeneration ) {\r\n\r\n\t\tnode.continueGeneration();\r\n\r\n\t}\r\n\r\n\tconst isLeaf = ! ! node.count;\r\n\tif ( isLeaf ) {\r\n\r\n\t\tintersectTris( mesh, mesh.geometry, raycaster, ray, node.offset, node.count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tif ( intersectRay( node.left, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( node.left, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tif ( intersectRay( node.right, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( node.right, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( node, mesh, raycaster, ray ) {\r\n\r\n\tif ( node.continueGeneration ) {\r\n\r\n\t\tnode.continueGeneration();\r\n\r\n\t}\r\n\r\n\tconst isLeaf = ! ! node.count;\r\n\tif ( isLeaf ) {\r\n\r\n\t\treturn intersectClosestTri( mesh, mesh.geometry, raycaster, ray, node.offset, node.count );\r\n\r\n\t} else {\r\n\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = node.splitAxis;\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = node.left;\r\n\t\t\tc2 = node.right;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = node.right;\r\n\t\t\tc2 = node.left;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= c2.boundingData[ splitAxis ] :\r\n\t\t\t\tpoint >= c2.boundingData[ splitAxis + 3 ];\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast(\r\n\t\tnode,\r\n\t\tmesh,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc = null,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( node ) {\r\n\r\n\t\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t}\r\n\r\n\t\t\twhile ( ! node.count ) {\r\n\r\n\t\t\t\tnode = node.left;\r\n\t\t\t\tif ( /* skip */ node.continueGeneration ) {\r\n\r\n\t\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn node.offset;\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( node ) {\r\n\r\n\t\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t}\r\n\r\n\t\t\twhile ( ! node.count ) {\r\n\r\n\t\t\t\tnode = node.right;\r\n\t\t\t\tif ( /* skip */ node.continueGeneration ) {\r\n\r\n\t\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn node.offset + node.count;\r\n\r\n\t\t}\r\n\r\n\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\tnode.continueGeneration();\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tif ( isLeaf && intersectsTriangleFunc ) {\r\n\r\n\t\t\tconst geometry = mesh.geometry;\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\tarrayToBox( c1.boundingData, box1 );\r\n\t\t\t\tarrayToBox( c2.boundingData, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1.boundingData, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ! ! c1.count;\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2.boundingData, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ! ! c2.count;\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( node, mesh, geometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\tnode.continueGeneration();\r\n\r\n\t\t}\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! geometry.boundingBox ) {\r\n\r\n\t\t\t\tgeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = mesh.geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = geometry.index;\r\n\t\t\tconst pos = geometry.attributes.position;\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( geometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( node.boundingData, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = geometry;\r\n\t\t\t\tconst res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\r\n\t\t\tarrayToBox( left.boundingData, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\r\n\t\t\tarrayToBox( right.boundingData, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","\n/**************************************************************************************************\n *\n * This file is generated from castFunctions.js and scripts/generate-cast-function.mjs. Do not edit.\n *\n *************************************************************************************************/\n\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\n\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\n\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\n\nexport function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects ) {\n\n\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\tconst isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );\r\n\tif ( isLeaf ) {\n\n\t\tintersectTris( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ], intersects );\n\n\t} else {\n\n\t\tif ( intersectRayBuffer( /* node left */ stride4Offset + 8, float32Array, ray, boxIntersection ) ) {\n\n\t\t\traycastBuffer( /* node left */ stride4Offset + 8, mesh, raycaster, ray, intersects );\n\n\t\t}\n\n\t\tif ( intersectRayBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], float32Array, ray, boxIntersection ) ) {\n\n\t\t\traycastBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], mesh, raycaster, ray, intersects );\n\n\t\t}\n\n\t}\n\n}\n\nexport function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {\n\n\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\tconst isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );\r\n\tif ( isLeaf ) {\n\n\t\treturn intersectClosestTri( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ] );\n\n\t} else {\n\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = /* node splitAxis */ uint32Array[ stride4Offset + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\n\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\n\n\t\t\tc1 = /* node left */ stride4Offset + 8;\r\n\t\t\tc2 = /* node right */ uint32Array[ stride4Offset + 6 ];\n\n\t\t} else {\n\n\t\t\tc1 = /* node right */ uint32Array[ stride4Offset + 6 ];\r\n\t\t\tc2 = /* node left */ stride4Offset + 8;\n\n\t\t}\n\n\t\tconst c1Intersection = intersectRayBuffer( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirstBuffer( c1, mesh, raycaster, ray ) : null;\n\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\n\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= /* c2 boundingData */ float32Array[ c2 + splitAxis ] :\r\n\t\t\t\tpoint >= /* c2 boundingData */ float32Array[ c2 + splitAxis + 3 ];\n\n\t\t\tif ( isOutside ) {\n\n\t\t\t\treturn c1Result;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRayBuffer( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirstBuffer( c2, mesh, raycaster, ray ) : null;\n\n\t\tif ( c1Result && c2Result ) {\n\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\n\n\t\t} else {\n\n\t\t\treturn c1Result || c2Result || null;\n\n\t\t}\n\n\t}\n\n}\n\nexport const shapecastBuffer = ( function () {\n\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\n\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\n\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\n\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\n\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn false;\n\n\t}\n\n\treturn function shapecastBuffer( stride4Offset,\r\n\t\tmesh,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc = null,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\n\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffsetBuffer( stride4Offset ) {\n\n\t\t\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\t\twhile ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {\n\n\t\t\t\t/* node */ stride4Offset = /* node left */ stride4Offset + 8, stride2Offset = stride4Offset * 2;\n\n\t\t\t}\n\n\t\t\treturn /* node offset */ uint32Array[ stride4Offset + 6 ];\n\n\t\t}\n\n\t\tfunction getRightEndOffsetBuffer( stride4Offset ) {\n\n\t\t\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\t\twhile ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {\n\n\t\t\t\t/* node */ stride4Offset = /* node right */ uint32Array[ stride4Offset + 6 ], stride2Offset = stride4Offset * 2;\n\n\t\t\t}\n\n\t\t\treturn /* node offset */ uint32Array[ stride4Offset + 6 ] + /* node count */ uint16Array[ stride2Offset + 14 ];\n\n\t\t}\n\n\t\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\tconst isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );\r\n\t\tif ( isLeaf && intersectsTriangleFunc ) {\n\n\t\t\tconst geometry = mesh.geometry;\r\n\t\t\tconst offset = /* node offset */ uint32Array[ stride4Offset + 6 ];\r\n\t\t\tconst count = /* node count */ uint16Array[ stride2Offset + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\n\n\t\t} else {\n\n\t\t\tconst left = /* node left */ stride4Offset + 8;\r\n\t\t\tconst right = /* node right */ uint32Array[ stride4Offset + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\n\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\n\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\n\n\t\t\t\tarrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );\r\n\t\t\t\tarrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );\n\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\n\n\t\t\t\tif ( score2 < score1 ) {\n\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\n\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\n\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\n\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );\n\n\t\t\t}\n\n\t\t\tconst isC1Leaf = ! /* c1 count */ ( uint16Array[ c1 + 15 ] !== 0xffff );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\n\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\n\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffsetBuffer( c1 );\r\n\t\t\t\tconst end = getRightEndOffsetBuffer( c1 );\r\n\t\t\t\tconst count = end - offset;\n\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\n\n\t\t\t} else {\n\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecastBuffer(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\n\n\t\t\t}\n\n\t\t\tif ( c1StopTraversal ) return true;\n\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );\n\n\t\t\tconst isC2Leaf = ! /* c2 count */ ( uint16Array[ c2 + 15 ] !== 0xffff );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\n\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\n\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffsetBuffer( c2 );\r\n\t\t\t\tconst end = getRightEndOffsetBuffer( c2 );\r\n\t\t\t\tconst count = end - offset;\n\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\n\n\t\t\t} else {\n\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecastBuffer(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\n\n\t\t\t}\n\n\t\t\tif ( c2StopTraversal ) return true;\n\n\t\t\treturn false;\n\n\t\t}\n\n\t};\n\n} )();\n\nexport const intersectsGeometryBuffer = ( function () {\n\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\n\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\n\n\treturn function intersectsGeometryBuffer( stride4Offset, mesh, geometry, geometryToBvh, cachedObb = null ) {\n\n\t\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\tif ( cachedObb === null ) {\n\n\t\t\tif ( ! geometry.boundingBox ) {\n\n\t\t\t\tgeometry.computeBoundingBox();\n\n\t\t\t}\n\n\t\t\tobb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\n\n\t\t}\n\n\t\tconst isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );\r\n\t\tif ( isLeaf ) {\n\n\t\t\tconst thisGeometry = mesh.geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\n\n\t\t\tconst index = geometry.index;\r\n\t\t\tconst pos = geometry.attributes.position;\n\n\t\t\tconst offset = /* node offset */ uint32Array[ stride4Offset + 6 ];\r\n\t\t\tconst count = /* node count */ uint16Array[ stride2Offset + 14 ];\n\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\n\n\t\t\tif ( geometry.boundsTree ) {\n\n\t\t\t\tarrayToBoxBuffer( /* node boundingData */ stride4Offset, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\n\n\t\t\t\tcachedMesh.geometry = geometry;\r\n\t\t\t\tconst res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\n\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\n\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\n\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\n\n\t\t\t\treturn res;\n\n\t\t\t} else {\n\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\n\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\n\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\n\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tconst left = /* node left */ stride4Offset + 8;\r\n\t\t\tconst right = /* node right */ uint32Array[ stride4Offset + 6 ];\n\n\t\t\tarrayToBoxBuffer( /* left boundingData */ left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometryBuffer( left, mesh, geometry, geometryToBvh, cachedObb );\n\n\t\t\tif ( leftIntersection ) return true;\n\n\t\t\tarrayToBoxBuffer( /* right boundingData */ right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometryBuffer( right, mesh, geometry, geometryToBvh, cachedObb );\n\n\t\t\tif ( rightIntersection ) return true;\n\n\t\t\treturn false;\n\n\t\t}\n\n\t};\n\n} )();\n\nfunction intersectRayBuffer( stride4Offset, array, ray, target ) {\n\n\tarrayToBoxBuffer( stride4Offset, array, boundingBox );\n\treturn ray.intersectBox( boundingBox, target );\n\n}\n\nconst bufferStack = [];\nlet _prevBuffer;\nlet _float32Array;\nlet _uint16Array;\nlet _uint32Array;\nexport function setBuffer( buffer ) {\n\n\tif ( _prevBuffer ) {\n\n\t\tbufferStack.push( _prevBuffer );\n\n\t}\n\n\t_prevBuffer = buffer;\n\t_float32Array = new Float32Array( buffer );\n\t_uint16Array = new Uint16Array( buffer );\n\t_uint32Array = new Uint32Array( buffer );\n\n}\n\nexport function clearBuffer() {\n\n\t_prevBuffer = null;\n\t_float32Array = null;\n\t_uint16Array = null;\n\t_uint32Array = null;\n\n\tif ( bufferStack.length ) {\n\n\t\tsetBuffer( bufferStack.pop() );\n\n\t}\n\n}\n\nfunction arrayToBoxBuffer( stride4Offset, array, target ) {\n\n\ttarget.min.x = array[ stride4Offset ];\n\ttarget.min.y = array[ stride4Offset + 1 ];\n\ttarget.min.z = array[ stride4Offset + 2 ];\n\n\ttarget.max.x = array[ stride4Offset + 3 ];\n\ttarget.max.y = array[ stride4Offset + 4 ];\n\ttarget.max.z = array[ stride4Offset + 5 ];\n\n}\n","import { Vector3, BufferAttribute } from 'three';\r\nimport { CENTER } from './Constants.js';\r\nimport { buildTree } from './buildFunctions.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport {\r\n\traycast,\r\n\traycastFirst,\r\n\tshapecast,\r\n\tintersectsGeometry,\r\n} from './castFunctions.js';\r\n\r\nimport {\r\n\traycastBuffer,\r\n\traycastFirstBuffer,\r\n\tshapecastBuffer,\r\n\tintersectsGeometryBuffer,\r\n\tsetBuffer,\r\n\tclearBuffer,\r\n} from './castFunctionsBuffer.js';\r\n\r\n// boundingData  \t\t\t\t: 6 float32\r\n// right / offset \t\t\t\t: 1 uint32\r\n// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\nconst BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\nconst IS_LEAFNODE_FLAG = 0xFFFF;\r\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\r\n\r\nconst obb = new OrientedBox();\r\nconst temp = new Vector3();\r\nconst tri2 = new SeparatingAxisTriangle();\r\nconst temp1 = new Vector3();\r\nconst temp2 = new Vector3();\r\n\r\nexport default class MeshBVH {\r\n\r\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\r\n\r\n\t\tfunction finishTree( node ) {\r\n\r\n\t\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( ! node.count ) {\r\n\r\n\t\t\t\tfinishTree( node.left );\r\n\t\t\t\tfinishTree( node.right );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfunction countNodes( node ) {\r\n\r\n\t\t\tif ( node.count ) {\r\n\r\n\t\t\t\treturn 1;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\t\tconst stride4Offset = byteOffset / 4;\r\n\t\t\tconst stride2Offset = byteOffset / 2;\r\n\t\t\tconst isLeaf = ! ! node.count;\r\n\t\t\tconst boundingData = node.boundingData;\r\n\t\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = node.offset;\r\n\t\t\t\tconst count = node.count;\r\n\t\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node.left;\r\n\t\t\t\tconst right = node.right;\r\n\t\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\t\tlet nextUnusedPointer;\r\n\t\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tlet float32Array;\r\n\t\tlet uint32Array;\r\n\t\tlet uint16Array;\r\n\r\n\t\tconst roots = bvh._roots;\r\n\t\tlet rootData;\r\n\r\n\t\tif ( bvh._isPacked ) {\r\n\r\n\t\t\trootData = roots;\r\n\r\n\t\t} else {\r\n\r\n\t\t\trootData = [];\r\n\t\t\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\t\t\tconst root = roots[ i ];\r\n\t\t\t\tfinishTree( root );\r\n\t\t\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\t\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\t\t\tfloat32Array = new Float32Array( buffer );\r\n\t\t\t\tuint32Array = new Uint32Array( buffer );\r\n\t\t\t\tuint16Array = new Uint16Array( buffer );\r\n\t\t\t\tpopulateBuffer( 0, root );\r\n\t\t\t\trootData.push( buffer );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tconst indexAttribute = geometry.getIndex();\r\n\t\tconst result = {\r\n\t\t\troots: rootData,\r\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\r\n\t\t};\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tstatic deserialize( data, geometry, setIndex = true ) {\r\n\r\n\t\tconst { index, roots } = data;\r\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\r\n\t\tbvh._roots = roots;\r\n\t\tbvh._isPacked = true;\r\n\r\n\t\tif ( setIndex ) {\r\n\r\n\t\t\tconst indexAttribute = geometry.getIndex();\r\n\t\t\tif ( indexAttribute === null ) {\r\n\r\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\r\n\t\t\t\tgeometry.setIndex( newIndex );\r\n\r\n\t\t\t} else if ( indexAttribute.array !== index ) {\r\n\r\n\t\t\t\tindexAttribute.array.set( index );\r\n\t\t\t\tindexAttribute.needsUpdate = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn bvh;\r\n\r\n\t}\r\n\r\n\tconstructor( geo, options = {} ) {\r\n\r\n\t\tif ( ! geo.isBufferGeometry ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\r\n\r\n\t\t} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\r\n\r\n\t\t} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\r\n\r\n\t\t}\r\n\r\n\t\t// default options\r\n\t\toptions = Object.assign( {\r\n\r\n\t\t\tstrategy: CENTER,\r\n\t\t\tmaxDepth: 40,\r\n\t\t\tmaxLeafTris: 10,\r\n\t\t\tverbose: true,\r\n\t\t\tlazyGeneration: true,\r\n\r\n\t\t\t// undocumented options\r\n\r\n\t\t\t// whether to the pack the data as a buffer or not. The data\r\n\t\t\t// will not be packed if lazyGeneration is true.\r\n\t\t\tpackData: true,\r\n\r\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\r\n\t\t\t[ SKIP_GENERATION ]: false\r\n\r\n\t\t}, options );\r\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\r\n\r\n\t\tthis._isPacked = false;\r\n\t\tthis._roots = null;\r\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\r\n\r\n\t\t\tthis._roots = buildTree( geo, options );\r\n\t\t\tif ( ! options.lazyGeneration && options.packData ) {\r\n\r\n\t\t\t\tthis._roots = MeshBVH.serialize( this, geo, false ).roots;\r\n\t\t\t\tthis._isPacked = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\ttraverse( callback, rootIndex = 0 ) {\r\n\r\n\t\tif ( this._isPacked ) {\r\n\r\n\t\t\tconst buffer = this._roots[ rootIndex ];\r\n\t\t\tconst uint32Array = new Uint32Array( buffer );\r\n\t\t\tconst uint16Array = new Uint16Array( buffer );\r\n\t\t\t_traverseBuffer( 0 );\r\n\r\n\t\t\tfunction _traverseBuffer( stride4Offset, depth = 0 ) {\r\n\r\n\t\t\t\tconst stride2Offset = stride4Offset * 2;\r\n\t\t\t\tconst isLeaf = uint16Array[ stride2Offset + 15 ];\r\n\t\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t\tconst offset = uint32Array[ stride4Offset + 6 ];\r\n\t\t\t\t\tconst count = uint16Array[ stride2Offset + 14 ];\r\n\t\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), offset, count );\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tconst left = stride4Offset + BYTES_PER_NODE / 4;\r\n\t\t\t\t\tconst right = uint32Array[ stride4Offset + 6 ];\r\n\t\t\t\t\tconst splitAxis = uint32Array[ stride4Offset + 7 ];\r\n\t\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), splitAxis, false );\r\n\r\n\t\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t\t_traverseBuffer( left, depth + 1 );\r\n\t\t\t\t\t\t_traverseBuffer( right, depth + 1 );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\t_traverseNode( this._roots[ rootIndex ] );\r\n\r\n\t\t\tfunction _traverseNode( node, depth = 0 ) {\r\n\r\n\t\t\t\tconst isLeaf = ! ! node.count;\r\n\t\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t\tcallback( depth, isLeaf, node.boundingData, node.offset, node.count );\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tconst stopTraversal = callback( depth, isLeaf, node.boundingData, node.splitAxis, ! ! node.continueGeneration );\r\n\r\n\t\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t\tif ( node.left ) _traverseNode( node.left, depth + 1 );\r\n\t\t\t\t\t\tif ( node.right ) _traverseNode( node.right, depth + 1 );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t/* Core Cast Functions */\r\n\traycast( mesh, raycaster, ray, intersects ) {\r\n\r\n\t\tconst isPacked = this._isPacked;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tif ( isPacked ) {\r\n\r\n\t\t\t\tsetBuffer( root );\r\n\t\t\t\traycastBuffer( 0, mesh, raycaster, ray, intersects );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\traycast( root, mesh, raycaster, ray, intersects );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tisPacked && clearBuffer();\r\n\r\n\t}\r\n\r\n\traycastFirst( mesh, raycaster, ray ) {\r\n\r\n\t\tconst isPacked = this._isPacked;\r\n\t\tlet closestResult = null;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tlet result;\r\n\t\t\tif ( isPacked ) {\r\n\r\n\t\t\t\tsetBuffer( root );\r\n\t\t\t\tresult = raycastFirstBuffer( 0, mesh, raycaster, ray );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tresult = raycastFirst( root, mesh, raycaster, ray );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\r\n\r\n\t\t\t\tclosestResult = result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tisPacked && clearBuffer();\r\n\r\n\t\treturn closestResult;\r\n\r\n\t}\r\n\r\n\tintersectsGeometry( mesh, geometry, geomToMesh ) {\r\n\r\n\t\tconst isPacked = this._isPacked;\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tif ( isPacked ) {\r\n\r\n\t\t\t\tsetBuffer( root );\r\n\t\t\t\tresult = intersectsGeometryBuffer( 0, mesh, geometry, geomToMesh );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tresult = intersectsGeometry( root, mesh, geometry, geomToMesh );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tisPacked && clearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\r\n\r\n\t\tconst isPacked = this._isPacked;\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tif ( isPacked ) {\r\n\r\n\t\t\t\tsetBuffer( root );\r\n\t\t\t\tresult = shapecastBuffer( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tresult = shapecast( root, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tisPacked && clearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\t/* Derived Cast Functions */\r\n\tintersectsBox( mesh, box, boxToMesh ) {\r\n\r\n\t\tobb.set( box.min, box.max, boxToMesh );\r\n\t\tobb.update();\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => obb.intersectsBox( box ),\r\n\t\t\ttri => obb.intersectsTriangle( tri )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tintersectsSphere( mesh, sphere ) {\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => sphere.intersectsBox( box ),\r\n\t\t\ttri => tri.intersectsSphere( sphere )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tclosestPointToGeometry( mesh, geom, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\tif ( ! geom.boundingBox ) {\r\n\r\n\t\t\tgeom.computeBoundingBox();\r\n\r\n\t\t}\r\n\r\n\t\tobb.set( geom.boundingBox.min, geom.boundingBox.max, geometryToBvh );\r\n\t\tobb.update();\r\n\r\n\t\tconst pos = geom.attributes.position;\r\n\t\tconst index = geom.index;\r\n\r\n\t\tlet tempTarget1 = null;\r\n\t\tlet tempTarget2 = null;\r\n\t\tif ( target1 ) {\r\n\r\n\t\t\ttempTarget1 = temp1;\r\n\r\n\t\t}\r\n\r\n\t\tif ( target2 ) {\r\n\r\n\t\t\ttempTarget2 = temp2;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\tif ( tri.needsUpdate ) {\r\n\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tconst sphere1 = tri.sphere;\r\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\r\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\r\n\r\n\t\t\t\t\tconst sphere2 = tri2.sphere;\r\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\r\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\r\n\r\n\t\t\t\t\t\tcontinue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\ttri2.update();\r\n\r\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\r\n\t\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\t\tif ( target1 ) {\r\n\r\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tif ( target2 ) {\r\n\r\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\r\n\t\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn false;\r\n\r\n\t\t\t},\r\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\t// early out if under minThreshold\r\n\t\t// skip checking if over maxThreshold\r\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\r\n\t\t// returns Infinity if no value found\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\ttri.closestPointToPoint( point, temp );\r\n\t\t\t\tconst dist = point.distanceTo( temp );\r\n\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\tif ( target ) {\r\n\r\n\t\t\t\t\t\ttarget.copy( temp );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t},\r\n\t\t\tbox => box.distanceToPoint( point )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n}\r\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis._oldDepth = - 1;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._boundsTree = null;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tthis._oldDepth = this.depth;\r\n\t\tthis._boundsTree = this.mesh.geometry.boundsTree;\r\n\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( this._boundsTree ) {\r\n\r\n\t\t\tthis._boundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( countOrIsUnfinished, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( countOrIsUnfinished, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 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\ No newline at end of file
+{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t// if the geometry doesn't have a bounding box, then let's politely populate it using\r\n\t// the work we did to determine the BVH root bounds\r\n\tif ( geo.boundingBox == null ) {\r\n\r\n\t\tconst rootBox = new Box3();\r\n\t\tgeo.boundingBox = new Box3();\r\n\r\n\t\tfor ( let root of roots ) {\r\n\r\n\t\t\tgeo.boundingBox.union( arrayToBox( root.boundingData, rootBox ) );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast( nodeIndex32,\r\n\t\tmesh,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc = null,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf && intersectsTriangleFunc ) {\r\n\r\n\t\t\tconst geometry = mesh.geometry;\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! geometry.boundingBox ) {\r\n\r\n\t\t\t\tgeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = mesh.geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = geometry.index;\r\n\t\t\tconst pos = geometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( geometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = geometry;\r\n\t\t\t\tconst res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n","import { Vector3, BufferAttribute } from 'three';\r\nimport { CENTER } from './Constants.js';\r\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport {\r\n\traycast,\r\n\traycastFirst,\r\n\tshapecast,\r\n\tintersectsGeometry,\r\n\tsetBuffer,\r\n\tclearBuffer,\r\n} from './castFunctions.js';\r\n\r\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\r\n\r\nconst obb = new OrientedBox();\r\nconst temp = new Vector3();\r\nconst tri2 = new SeparatingAxisTriangle();\r\nconst temp1 = new Vector3();\r\nconst temp2 = new Vector3();\r\n\r\nexport default class MeshBVH {\r\n\r\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\r\n\r\n\t\tconst rootData = bvh._roots;\r\n\t\tconst indexAttribute = geometry.getIndex();\r\n\t\tconst result = {\r\n\t\t\troots: rootData,\r\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\r\n\t\t};\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tstatic deserialize( data, geometry, setIndex = true ) {\r\n\r\n\t\tconst { index, roots } = data;\r\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\r\n\t\tbvh._roots = roots;\r\n\r\n\t\tif ( setIndex ) {\r\n\r\n\t\t\tconst indexAttribute = geometry.getIndex();\r\n\t\t\tif ( indexAttribute === null ) {\r\n\r\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\r\n\t\t\t\tgeometry.setIndex( newIndex );\r\n\r\n\t\t\t} else if ( indexAttribute.array !== index ) {\r\n\r\n\t\t\t\tindexAttribute.array.set( index );\r\n\t\t\t\tindexAttribute.needsUpdate = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn bvh;\r\n\r\n\t}\r\n\r\n\tconstructor( geo, options = {} ) {\r\n\r\n\t\tif ( ! geo.isBufferGeometry ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\r\n\r\n\t\t} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\r\n\r\n\t\t} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\r\n\r\n\t\t}\r\n\r\n\t\t// default options\r\n\t\toptions = Object.assign( {\r\n\r\n\t\t\tstrategy: CENTER,\r\n\t\t\tmaxDepth: 40,\r\n\t\t\tmaxLeafTris: 10,\r\n\t\t\tverbose: true,\r\n\r\n\t\t\t// undocumented options\r\n\r\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\r\n\t\t\t[ SKIP_GENERATION ]: false\r\n\r\n\t\t}, options );\r\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\r\n\r\n\t\tthis._roots = null;\r\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\r\n\r\n\t\t\tthis._roots = buildPackedTree( geo, options );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\trefit( geometry ) {\r\n\r\n\t\tconst indexArr = geometry.index.array;\r\n\t\tconst posArr = geometry.attributes.position.array;\r\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\r\n\t\tconst roots = this._roots;\r\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\r\n\r\n\t\t\tbuffer = roots[ i ];\r\n\t\t\tuint32Array = new Uint32Array( buffer );\r\n\t\t\tuint16Array = new Uint16Array( buffer );\r\n\t\t\tfloat32Array = new Float32Array( buffer );\r\n\t\t\t_traverse( 0 );\r\n\r\n\t\t}\n\r\n\t\tfunction _traverse( node32Index ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\r\n\t\t\t\tlet minx = Infinity;\r\n\t\t\t\tlet miny = Infinity;\r\n\t\t\t\tlet minz = Infinity;\r\n\t\t\t\tlet maxx = - Infinity;\r\n\t\t\t\tlet maxy = - Infinity;\r\n\t\t\t\tlet maxz = - Infinity;\r\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\r\n\r\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\r\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\r\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\r\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\r\n\r\n\t\t\t\t\tif ( x < minx ) minx = x;\r\n\t\t\t\t\tif ( x > maxx ) maxx = x;\r\n\r\n\t\t\t\t\tif ( y < miny ) miny = y;\r\n\t\t\t\t\tif ( y > maxy ) maxy = y;\r\n\r\n\t\t\t\t\tif ( z < minz ) minz = z;\r\n\t\t\t\t\tif ( z > maxz ) maxz = z;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\r\n\t\t\t\t) {\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + 8;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\r\n\t\t\t\tconst leftChange = _traverse( left );\r\n\t\t\t\tconst rightChange = _traverse( right );\r\n\t\t\t\tconst didChange = leftChange || rightChange;\r\n\r\n\t\t\t\tif ( didChange ) {\r\n\r\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\t\tconst lefti = left + i;\r\n\t\t\t\t\t\tconst righti = right + i;\r\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\r\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\r\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\r\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\r\n\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn didChange;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\ttraverse( callback, rootIndex = 0 ) {\r\n\r\n\t\tconst buffer = this._roots[ rootIndex ];\r\n\t\tconst uint32Array = new Uint32Array( buffer );\r\n\t\tconst uint16Array = new Uint16Array( buffer );\r\n\t\t_traverse( 0 );\r\n\r\n\t\tfunction _traverse( node32Index, depth = 0 ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\r\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\r\n\r\n\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t_traverse( left, depth + 1 );\r\n\t\t\t\t\t_traverse( right, depth + 1 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t/* Core Cast Functions */\r\n\traycast( mesh, raycaster, ray, intersects ) {\r\n\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\traycast( 0, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t}\r\n\r\n\traycastFirst( mesh, raycaster, ray ) {\r\n\r\n\t\tlet closestResult = null;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tconst result = raycastFirst( 0, mesh, raycaster, ray );\r\n\r\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\r\n\r\n\t\t\t\tclosestResult = result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn closestResult;\r\n\r\n\t}\r\n\r\n\tintersectsGeometry( mesh, geometry, geomToMesh ) {\r\n\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, geomToMesh );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\r\n\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = shapecast( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\t/* Derived Cast Functions */\r\n\tintersectsBox( mesh, box, boxToMesh ) {\r\n\r\n\t\tobb.set( box.min, box.max, boxToMesh );\r\n\t\tobb.update();\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => obb.intersectsBox( box ),\r\n\t\t\ttri => obb.intersectsTriangle( tri )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tintersectsSphere( mesh, sphere ) {\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => sphere.intersectsBox( box ),\r\n\t\t\ttri => tri.intersectsSphere( sphere )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tclosestPointToGeometry( mesh, geom, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\tif ( ! geom.boundingBox ) {\r\n\r\n\t\t\tgeom.computeBoundingBox();\r\n\r\n\t\t}\r\n\r\n\t\tobb.set( geom.boundingBox.min, geom.boundingBox.max, geometryToBvh );\r\n\t\tobb.update();\r\n\r\n\t\tconst pos = geom.attributes.position;\r\n\t\tconst index = geom.index;\r\n\r\n\t\tlet tempTarget1 = null;\r\n\t\tlet tempTarget2 = null;\r\n\t\tif ( target1 ) {\r\n\r\n\t\t\ttempTarget1 = temp1;\r\n\r\n\t\t}\r\n\r\n\t\tif ( target2 ) {\r\n\r\n\t\t\ttempTarget2 = temp2;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\tif ( tri.needsUpdate ) {\r\n\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tconst sphere1 = tri.sphere;\r\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\r\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\r\n\r\n\t\t\t\t\tconst sphere2 = tri2.sphere;\r\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\r\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\r\n\r\n\t\t\t\t\t\tcontinue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\ttri2.update();\r\n\r\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\r\n\t\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\t\tif ( target1 ) {\r\n\r\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tif ( target2 ) {\r\n\r\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\r\n\t\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn false;\r\n\r\n\t\t\t},\r\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\t// early out if under minThreshold\r\n\t\t// skip checking if over maxThreshold\r\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\r\n\t\t// returns Infinity if no value found\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\ttri.closestPointToPoint( point, temp );\r\n\t\t\t\tconst dist = point.distanceTo( temp );\r\n\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\tif ( target ) {\r\n\r\n\t\t\t\t\t\ttarget.copy( temp );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t},\r\n\t\t\tbox => box.distanceToPoint( point )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n}\r\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as 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\ No newline at end of file

From 769cacca7e6c9bfbe9f728770a43402421093351 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 18:54:14 -0800
Subject: [PATCH 074/139] Update settings

---
 example/sculpt.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 56b13895e..96b51b25f 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -31,7 +31,7 @@ const params = {
 	size: 0.1,
 	brush: 'clay',
 	intensity: 50,
-	maxSteps: 20,
+	maxSteps: 10,
 	invert: false,
 	symmetrical: true,
 	flatShading: false,
@@ -165,7 +165,7 @@ function init() {
 	sculptFolder.add( params, 'brush', [ 'normal', 'clay', 'flatten' ] );
 	sculptFolder.add( params, 'size' ).min( 0.025 ).max( 0.25 ).step( 0.005 );
 	sculptFolder.add( params, 'intensity' ).min( 1 ).max( 100 ).step( 1 );
-	sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 50 ).step( 1 );
+	sculptFolder.add( params, 'maxSteps' ).min( 1 ).max( 25 ).step( 1 );
 	sculptFolder.add( params, 'symmetrical' );
 	sculptFolder.add( params, 'invert' );
 	sculptFolder.add( params, 'flatShading' ).onChange( value => {

From 461a727bc704e142d130b582d72b01c73bd1c70a Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 19:11:52 -0800
Subject: [PATCH 075/139] improve normal generation

---
 example/sculpt.js | 70 ++++++++++++++++++++++++++++++-----------------
 1 file changed, 45 insertions(+), 25 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 96b51b25f..5c92cc813 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -407,6 +407,7 @@ function performStroke( point, brushObject, brushOnly = false ) {
 	plane.setFromNormalAndCoplanarPoint( normal, planePoint );
 
 	const indexToTriangles = {};
+	const triangles = new Set();
 	indices.forEach( i => {
 
 		const index = indexAttr.getX( i );
@@ -440,48 +441,67 @@ function performStroke( point, brushObject, brushOnly = false ) {
 		}
 
 		posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
-
-		// save all the triangles that are connected to this vertex
-		let arr = indexToTriangles[ index ];
-		if ( ! arr ) {
-
-			arr = indexToTriangles[ index ] = [];
-
-		}
-
-		arr.push( ~ ~ ( i / 3 ) );
+		normalAttr.setXYZ( index, 0, 0, 0 );
+		triangles.add( ~ ~ ( i / 3 ) );
 
 	} );
 
 	// If we found vertices
 	if ( indices.size ) {
 
-		// compute the new vertex normal
-		// TODO: this can be improved by computing the normal vertices in place in
-		// the buffer then normalizing them and avoiding recomputing the normal for the
-		// same triangles multiple times
+		// accumulate the normals in place in the normal buffer
 		const triangle = new THREE.Triangle();
-		for ( const index in indexToTriangles ) {
+		triangles.forEach( tri => {
 
-			tempVec.set( 0, 0, 0 );
+			const tri3 = tri * 3;
+			const i0 = tri3 + 0;
+			const i1 = tri3 + 1;
+			const i2 = tri3 + 2;
 
-			const arr = indexToTriangles[ index ];
-			for ( const tri in arr ) {
+			const v0 = indexAttr.getX( i0 );
+			const v1 = indexAttr.getX( i1 );
+			const v2 = indexAttr.getX( i2 );
 
-				const i3 = arr[ tri ] * 3;
-				triangle.a.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 0 ) );
-				triangle.b.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 1 ) );
-				triangle.c.fromBufferAttribute( posAttr, indexAttr.getX( i3 + 2 ) );
+			triangle.a.fromBufferAttribute( posAttr, v0 );
+			triangle.b.fromBufferAttribute( posAttr, v1 );
+			triangle.c.fromBufferAttribute( posAttr, v2 );
+			triangle.getNormal( tempVec2 );
 
-				triangle.getNormal( tempVec2 );
+			if ( indices.has( i0 ) ) {
+
+				tempVec.fromBufferAttribute( normalAttr, v0 );
 				tempVec.add( tempVec2 );
+				normalAttr.setXYZ( v0, tempVec.x, tempVec.y, tempVec.z );
 
 			}
 
+			if ( indices.has( i1 ) ) {
+
+				tempVec.fromBufferAttribute( normalAttr, v1 );
+				tempVec.add( tempVec2 );
+				normalAttr.setXYZ( v1, tempVec.x, tempVec.y, tempVec.z );
+
+			}
+
+			if ( indices.has( i2 ) ) {
+
+				tempVec.fromBufferAttribute( normalAttr, v2 );
+				tempVec.add( tempVec2 );
+				normalAttr.setXYZ( v2, tempVec.x, tempVec.y, tempVec.z );
+
+			}
+
+		} );
+
+		// normalize the accumulated normals
+		indices.forEach( i => {
+
+			const v = indexAttr.getX( i );
+			tempVec.fromBufferAttribute( normalAttr, v );
 			tempVec.normalize();
-			normalAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
+			normalAttr.setXYZ( v, tempVec.x, tempVec.y, tempVec.z );
 
-		}
+		} );
 
 		posAttr.needsUpdate = true;
 		normalAttr.needsUpdate = true;

From c6a5670b6ab3b2a36b2a22a7831d99569ee0d4b6 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 19:30:23 -0800
Subject: [PATCH 076/139] simplify triangles

---
 example/sculpt.js | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 5c92cc813..06a1ff06a 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -285,6 +285,10 @@ function performStroke( point, brushObject, brushOnly = false ) {
 	const tempVec = new THREE.Vector3();
 	const tempVec2 = new THREE.Vector3();
 	const normal = new THREE.Vector3();
+	const indexAttr = targetMesh.geometry.index;
+	const posAttr = targetMesh.geometry.attributes.position;
+	const normalAttr = targetMesh.geometry.attributes.normal;
+	const triangles = new Set();
 	const bvh = targetMesh.geometry.boundsTree;
 	bvh.shapecast(
 		targetMesh,
@@ -326,6 +330,7 @@ function performStroke( point, brushObject, brushOnly = false ) {
 		},
 		( tri, a, b, c, contained ) => {
 
+			triangles.add( ~ ~ ( a / 3 ) );
 			if ( contained ) {
 
 				indices.add( a );
@@ -360,9 +365,6 @@ function performStroke( point, brushObject, brushOnly = false ) {
 	);
 
 	// Compute the average normal at this point
-	const indexAttr = targetMesh.geometry.index;
-	const posAttr = targetMesh.geometry.attributes.position;
-	const normalAttr = targetMesh.geometry.attributes.normal;
 	const localPoint = new THREE.Vector3();
 	localPoint.copy( point ).applyMatrix4( inverseMatrix );
 
@@ -406,8 +408,6 @@ function performStroke( point, brushObject, brushOnly = false ) {
 	const plane = new THREE.Plane();
 	plane.setFromNormalAndCoplanarPoint( normal, planePoint );
 
-	const indexToTriangles = {};
-	const triangles = new Set();
 	indices.forEach( i => {
 
 		const index = indexAttr.getX( i );
@@ -442,7 +442,6 @@ function performStroke( point, brushObject, brushOnly = false ) {
 
 		posAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 		normalAttr.setXYZ( index, 0, 0, 0 );
-		triangles.add( ~ ~ ( i / 3 ) );
 
 	} );
 

From f8052e0c9ea92caa3c724d2a0a7ed49a18e8087e Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 19:44:08 -0800
Subject: [PATCH 077/139] improve sculpt performance / correctness

---
 example/sculpt.js | 43 ++++++++++++++++++++++---------------------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 06a1ff06a..b826a1977 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -331,29 +331,33 @@ function performStroke( point, brushObject, brushOnly = false ) {
 		( tri, a, b, c, contained ) => {
 
 			triangles.add( ~ ~ ( a / 3 ) );
+
+			const va = indexAttr.getX( a );
+			const vb = indexAttr.getX( b );
+			const vc = indexAttr.getX( c );
 			if ( contained ) {
 
-				indices.add( a );
-				indices.add( b );
-				indices.add( c );
+				indices.add( va );
+				indices.add( vb );
+				indices.add( vc );
 
 			} else {
 
 				if ( sphere.containsPoint( tri.a ) ) {
 
-					indices.add( a );
+					indices.add( va );
 
 				}
 
 				if ( sphere.containsPoint( tri.b ) ) {
 
-					indices.add( b );
+					indices.add( vb );
 
 				}
 
 				if ( sphere.containsPoint( tri.c ) ) {
 
-					indices.add( c );
+					indices.add( vc );
 
 				}
 
@@ -370,9 +374,8 @@ function performStroke( point, brushObject, brushOnly = false ) {
 
 	const planePoint = new THREE.Vector3();
 	let totalPoints = 0;
-	indices.forEach( i => {
+	indices.forEach( index => {
 
-		const index = indexAttr.getX( i );
 		tempVec.fromBufferAttribute( normalAttr, index );
 		normal.add( tempVec );
 
@@ -404,13 +407,12 @@ function performStroke( point, brushObject, brushOnly = false ) {
 	}
 
 	// perform vertex adjustment
-	const targetHeight = params.intensity * 0.000025;
+	const targetHeight = params.intensity * 0.0001;
 	const plane = new THREE.Plane();
 	plane.setFromNormalAndCoplanarPoint( normal, planePoint );
 
-	indices.forEach( i => {
+	indices.forEach( index => {
 
-		const index = indexAttr.getX( i );
 		tempVec.fromBufferAttribute( posAttr, index );
 
 		// compute the offset intensity
@@ -423,12 +425,12 @@ function performStroke( point, brushObject, brushOnly = false ) {
 
 			intensity = Math.pow( intensity, 3 );
 			const planeDist = plane.distanceToPoint( tempVec );
-			const clampedIntensity = negated * Math.min( intensity * 2, 0.5 ) * 2.0;
-			tempVec.addScaledVector( normal, clampedIntensity * targetHeight - negated * planeDist * clampedIntensity * 0.1 );
+			const clampedIntensity = negated * Math.min( intensity * 4, 1.0 );
+			tempVec.addScaledVector( normal, clampedIntensity * targetHeight - negated * planeDist * clampedIntensity * 0.3 );
 
 		} else if ( params.brush === 'normal' ) {
 
-			intensity = Math.pow( intensity, 3 );
+			intensity = Math.pow( intensity, 2 );
 			tempVec.addScaledVector( normal, negated * intensity * targetHeight );
 
 		} else if ( params.brush === 'flatten' ) {
@@ -466,7 +468,7 @@ function performStroke( point, brushObject, brushOnly = false ) {
 			triangle.c.fromBufferAttribute( posAttr, v2 );
 			triangle.getNormal( tempVec2 );
 
-			if ( indices.has( i0 ) ) {
+			if ( indices.has( v0 ) ) {
 
 				tempVec.fromBufferAttribute( normalAttr, v0 );
 				tempVec.add( tempVec2 );
@@ -474,7 +476,7 @@ function performStroke( point, brushObject, brushOnly = false ) {
 
 			}
 
-			if ( indices.has( i1 ) ) {
+			if ( indices.has( v1 ) ) {
 
 				tempVec.fromBufferAttribute( normalAttr, v1 );
 				tempVec.add( tempVec2 );
@@ -482,7 +484,7 @@ function performStroke( point, brushObject, brushOnly = false ) {
 
 			}
 
-			if ( indices.has( i2 ) ) {
+			if ( indices.has( v2 ) ) {
 
 				tempVec.fromBufferAttribute( normalAttr, v2 );
 				tempVec.add( tempVec2 );
@@ -493,12 +495,11 @@ function performStroke( point, brushObject, brushOnly = false ) {
 		} );
 
 		// normalize the accumulated normals
-		indices.forEach( i => {
+		indices.forEach( index => {
 
-			const v = indexAttr.getX( i );
-			tempVec.fromBufferAttribute( normalAttr, v );
+			tempVec.fromBufferAttribute( normalAttr, index );
 			tempVec.normalize();
-			normalAttr.setXYZ( v, tempVec.x, tempVec.y, tempVec.z );
+			normalAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
 
 		} );
 

From 21a6a293661345ae46f99e0da9f90f516fb4d0bc Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 19:52:40 -0800
Subject: [PATCH 078/139] Separate normals update

---
 example/sculpt.js | 97 +++++++++++++++++++++++++++--------------------
 1 file changed, 55 insertions(+), 42 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index b826a1977..2247649bf 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -283,7 +283,6 @@ function performStroke( point, brushObject, brushOnly = false ) {
 	// Collect the intersected vertices
 	const indices = new Set();
 	const tempVec = new THREE.Vector3();
-	const tempVec2 = new THREE.Vector3();
 	const normal = new THREE.Vector3();
 	const indexAttr = targetMesh.geometry.index;
 	const posAttr = targetMesh.geometry.attributes.position;
@@ -447,69 +446,83 @@ function performStroke( point, brushObject, brushOnly = false ) {
 
 	} );
 
+
+	// TODO: refit bounds here once it's optimized so we don't miss raycasts
+	// due to out of date bounds
+
+
 	// If we found vertices
 	if ( indices.size ) {
 
-		// accumulate the normals in place in the normal buffer
-		const triangle = new THREE.Triangle();
-		triangles.forEach( tri => {
+		posAttr.needsUpdate = true;
+		updateNormals( triangles, indices );
 
-			const tri3 = tri * 3;
-			const i0 = tri3 + 0;
-			const i1 = tri3 + 1;
-			const i2 = tri3 + 2;
+	}
 
-			const v0 = indexAttr.getX( i0 );
-			const v1 = indexAttr.getX( i1 );
-			const v2 = indexAttr.getX( i2 );
+}
 
-			triangle.a.fromBufferAttribute( posAttr, v0 );
-			triangle.b.fromBufferAttribute( posAttr, v1 );
-			triangle.c.fromBufferAttribute( posAttr, v2 );
-			triangle.getNormal( tempVec2 );
+function updateNormals( triangles, indices ) {
 
-			if ( indices.has( v0 ) ) {
+	const tempVec = new THREE.Vector3();
+	const tempVec2 = new THREE.Vector3();
+	const indexAttr = targetMesh.geometry.index;
+	const posAttr = targetMesh.geometry.attributes.position;
+	const normalAttr = targetMesh.geometry.attributes.normal;
 
-				tempVec.fromBufferAttribute( normalAttr, v0 );
-				tempVec.add( tempVec2 );
-				normalAttr.setXYZ( v0, tempVec.x, tempVec.y, tempVec.z );
+	// accumulate the normals in place in the normal buffer
+	const triangle = new THREE.Triangle();
+	triangles.forEach( tri => {
 
-			}
+		const tri3 = tri * 3;
+		const i0 = tri3 + 0;
+		const i1 = tri3 + 1;
+		const i2 = tri3 + 2;
 
-			if ( indices.has( v1 ) ) {
+		const v0 = indexAttr.getX( i0 );
+		const v1 = indexAttr.getX( i1 );
+		const v2 = indexAttr.getX( i2 );
 
-				tempVec.fromBufferAttribute( normalAttr, v1 );
-				tempVec.add( tempVec2 );
-				normalAttr.setXYZ( v1, tempVec.x, tempVec.y, tempVec.z );
+		triangle.a.fromBufferAttribute( posAttr, v0 );
+		triangle.b.fromBufferAttribute( posAttr, v1 );
+		triangle.c.fromBufferAttribute( posAttr, v2 );
+		triangle.getNormal( tempVec2 );
 
-			}
+		if ( indices.has( v0 ) ) {
 
-			if ( indices.has( v2 ) ) {
+			tempVec.fromBufferAttribute( normalAttr, v0 );
+			tempVec.add( tempVec2 );
+			normalAttr.setXYZ( v0, tempVec.x, tempVec.y, tempVec.z );
 
-				tempVec.fromBufferAttribute( normalAttr, v2 );
-				tempVec.add( tempVec2 );
-				normalAttr.setXYZ( v2, tempVec.x, tempVec.y, tempVec.z );
+		}
 
-			}
+		if ( indices.has( v1 ) ) {
 
-		} );
+			tempVec.fromBufferAttribute( normalAttr, v1 );
+			tempVec.add( tempVec2 );
+			normalAttr.setXYZ( v1, tempVec.x, tempVec.y, tempVec.z );
 
-		// normalize the accumulated normals
-		indices.forEach( index => {
+		}
 
-			tempVec.fromBufferAttribute( normalAttr, index );
-			tempVec.normalize();
-			normalAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
+		if ( indices.has( v2 ) ) {
 
-		} );
+			tempVec.fromBufferAttribute( normalAttr, v2 );
+			tempVec.add( tempVec2 );
+			normalAttr.setXYZ( v2, tempVec.x, tempVec.y, tempVec.z );
 
-		posAttr.needsUpdate = true;
-		normalAttr.needsUpdate = true;
+		}
 
-		// TODO: refit bounds here once it's optimized so we don't miss raycasts
-		// due to out of date bounds
+	} );
 
-	}
+	// normalize the accumulated normals
+	indices.forEach( index => {
+
+		tempVec.fromBufferAttribute( normalAttr, index );
+		tempVec.normalize();
+		normalAttr.setXYZ( index, tempVec.x, tempVec.y, tempVec.z );
+
+	} );
+
+	normalAttr.needsUpdate = true;
 
 }
 

From e192656958fdea20a6c924fe651157d213c2338a Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 19:59:28 -0800
Subject: [PATCH 079/139] Only update the normals once

---
 example/sculpt.js | 31 ++++++++++++++++++++-----------
 1 file changed, 20 insertions(+), 11 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 2247649bf..9d5b4bab2 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -271,7 +271,7 @@ function init() {
 }
 
 // Run the perform the brush movement
-function performStroke( point, brushObject, brushOnly = false ) {
+function performStroke( point, brushObject, brushOnly = false, accumulatedTriangles = new Set(), accumulatedIndices = new Set() ) {
 
 	const inverseMatrix = new THREE.Matrix4();
 	inverseMatrix.copy( targetMesh.matrixWorld ).invert();
@@ -329,7 +329,9 @@ function performStroke( point, brushObject, brushOnly = false ) {
 		},
 		( tri, a, b, c, contained ) => {
 
-			triangles.add( ~ ~ ( a / 3 ) );
+			const triIndex = ~ ~ ( a / 3 );
+			triangles.add( triIndex );
+			accumulatedTriangles.add( triIndex );
 
 			const va = indexAttr.getX( a );
 			const vb = indexAttr.getX( b );
@@ -340,23 +342,30 @@ function performStroke( point, brushObject, brushOnly = false ) {
 				indices.add( vb );
 				indices.add( vc );
 
+				accumulatedIndices.add( va );
+				accumulatedIndices.add( vb );
+				accumulatedIndices.add( vc );
+
 			} else {
 
 				if ( sphere.containsPoint( tri.a ) ) {
 
 					indices.add( va );
+					accumulatedIndices.add( va );
 
 				}
 
 				if ( sphere.containsPoint( tri.b ) ) {
 
 					indices.add( vb );
+					accumulatedIndices.add( vb );
 
 				}
 
 				if ( sphere.containsPoint( tri.c ) ) {
 
 					indices.add( vc );
+					accumulatedIndices.add( vc );
 
 				}
 
@@ -446,16 +455,10 @@ function performStroke( point, brushObject, brushOnly = false ) {
 
 	} );
 
-
-	// TODO: refit bounds here once it's optimized so we don't miss raycasts
-	// due to out of date bounds
-
-
 	// If we found vertices
 	if ( indices.size ) {
 
 		posAttr.needsUpdate = true;
-		updateNormals( triangles, indices );
 
 	}
 
@@ -598,6 +601,8 @@ function render() {
 				// perform multiple iterations toward the current mouse pose for a consistent stroke
 				// TODO: recast here so he cursor is on the surface of the model which requires faster
 				// refitting of the model
+				const changedTriangles = new Set();
+				const changedIndices = new Set();
 				while ( castDist > step && mdist > params.size * 200 / hit.distance ) {
 
 					lastMouse.lerp( mouse, percent );
@@ -605,12 +610,12 @@ function render() {
 					castDist -= step;
 					mdist -= mstep;
 
-					performStroke( lastCastPose, brush, false );
+					performStroke( lastCastPose, brush, false, changedTriangles, changedIndices );
 
 					if ( params.symmetrical ) {
 
 						lastCastPose.x *= - 1;
-						performStroke( lastCastPose, symmetryBrush, false );
+						performStroke( lastCastPose, symmetryBrush, false, changedTriangles, changedIndices );
 						lastCastPose.x *= - 1;
 
 					}
@@ -624,9 +629,13 @@ function render() {
 
 				}
 
-				// refit the bounds if we adjusted the mesh
+				// refit the bounds and update the normals if we adjusted the mesh
 				if ( stepCount > 0 ) {
 
+					// TODO: refit bounds and normal updates should probably happen after every stroke
+					// so it's up to date for the next one because both of those are used when updating
+					// the model but it's faster to do them here.
+					updateNormals( changedTriangles, changedIndices );
 					targetMesh.geometry.boundsTree.refit( targetMesh.geometry );
 					bvhHelper.update();
 

From ec578a6832cf5813b79289f9756bd61bc976f0e2 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 20:36:02 -0800
Subject: [PATCH 080/139] Remove ability to shapecast triangle function to be
 null

---
 src/MeshBVH.js                | 3 +++
 src/castFunctions.template.js | 7 ++++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 4f48a7610..e3577ba75 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -311,6 +311,9 @@ export default class MeshBVH {
 
 	shapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {
 
+		// default the triangle intersection function
+		intersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );
+
 		let result = false;
 		for ( const root of this._roots ) {
 
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index 7eb002650..860ef9333 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -157,10 +157,11 @@ export const shapecast = ( function () {
 
 	}
 
-	return function shapecast( nodeIndex32,
+	return function shapecast(
+		nodeIndex32,
 		mesh,
 		intersectsBoundsFunc,
-		intersectsTriangleFunc = null,
+		intersectsTriangleFunc,
 		nodeScoreFunc = null,
 		depth = 0,
 		triangle = _triangle,
@@ -207,7 +208,7 @@ export const shapecast = ( function () {
 		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 		const isLeaf = IS_LEAF( nodeIndex16 );
-		if ( isLeaf && intersectsTriangleFunc ) {
+		if ( isLeaf ) {
 
 			const geometry = mesh.geometry;
 			const offset = OFFSET( nodeIndex32 );

From 53713515d45d6635f613c4f7d0de5a20f220c1cf Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 20:40:36 -0800
Subject: [PATCH 081/139] update cast functions

---
 src/castFunctions.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/castFunctions.js b/src/castFunctions.js
index 052f5dc57..70e25f059 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -155,10 +155,11 @@ export const shapecast = ( function () {
 
 	}
 
-	return function shapecast( nodeIndex32,
+	return function shapecast(
+		nodeIndex32,
 		mesh,
 		intersectsBoundsFunc,
-		intersectsTriangleFunc = null,
+		intersectsTriangleFunc,
 		nodeScoreFunc = null,
 		depth = 0,
 		triangle = _triangle,
@@ -205,7 +206,7 @@ export const shapecast = ( function () {
 		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
-		if ( isLeaf && intersectsTriangleFunc ) {
+		if ( isLeaf ) {
 
 			const geometry = mesh.geometry;
 			const offset = uint32Array[ nodeIndex32 + 6 ];

From 397e0fe7c944700d8e294acf7091e469bfd3f7b1 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 21:17:43 -0800
Subject: [PATCH 082/139] build

---
 example/bundle/asyncGenerate.4a48c6e8.js        |  4 ++--
 example/bundle/asyncGenerate.html               |  3 +--
 example/bundle/characterMovement.725f956b.js    |  4 ++--
 example/bundle/collectTriangles.9c45819a.js     |  4 ++--
 example/bundle/collectTriangles.html            |  3 +--
 example/bundle/distancecast.4107d8f2.js         |  4 ++--
 example/bundle/distancecast.html                |  3 +--
 example/bundle/generateAsync.worker.13d14241.js |  4 ++--
 example/bundle/physics.50b811f1.js              |  4 ++--
 example/bundle/randomSampleDebug.32ad2b43.js    |  4 ++--
 example/bundle/raycast.88074831.js              |  4 ++--
 example/bundle/raycast.html                     |  3 +--
 example/bundle/sculpt.493e9c78.js               |  6 +++---
 example/bundle/selection.383a520f.js            |  4 ++--
 example/bundle/shapecast.b93a7fe2.js            |  4 ++--
 umd/index.js                                    | 10 +++++++---
 umd/index.js.map                                |  2 +-
 17 files changed, 35 insertions(+), 35 deletions(-)

diff --git a/example/bundle/asyncGenerate.4a48c6e8.js b/example/bundle/asyncGenerate.4a48c6e8.js
index 4a6fccf76..7e860e9c9 100644
--- a/example/bundle/asyncGenerate.4a48c6e8.js
+++ b/example/bundle/asyncGenerate.4a48c6e8.js
@@ -28,9 +28,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"dbR2":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.GenerateMeshBVHWorker=void 0;var e=r(require("../MeshBVH.js"));function r(e){return e&&e.__esModule?e:{default:e}}function n(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function t(e,r){for(var n=0;n<r.length;n++){var t=r[n];t.enumerable=t.enumerable||!1,t.configurable=!0,"value"in t&&(t.writable=!0),Object.defineProperty(e,t.key,t)}}function i(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}var o=function(){function r(){n(this,r),this.running=!1,this.worker=new Worker("generateAsync.worker.13d14241.js")}return i(r,[{key:"generate",value:function(r){var n=this,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(this.running)throw new Error("GenerateMeshBVHWorker: Already running job.");var i=this.worker;return this.running=!0,new Promise(function(o,a){i.onmessage=function(t){n.running=!1,i.onmessage=null;var s=t.data,u=s.serialized,f=s.position,l=s.error;if(l)a(new Error(l));else{var d=e.default.deserialize(u,r,!1);r.attributes.position.array=f,r.index&&(r.index.array=u.index),o(d)}};var s=r.index?r.index.array:null,u=r.attributes.position.array;if(u.isInterleavedBufferAttribute||s&&s.isInterleavedBufferAttribute)throw new Error("GenerateMeshBVHWorker: InterleavedBufferAttribute are not supported for the geometry attributes.");var f=[u];s&&f.push(s),i.postMessage({index:s,position:u,options:t},f.map(function(e){return e.buffer}))})}},{key:"terminate",value:function(){this.worker.terminate()}}]),r}();exports.GenerateMeshBVHWorker=o;
 },{"../MeshBVH.js":"nIyY","./generateAsync.worker.js":[["generateAsync.worker.13d14241.js","HHJX"],"HHJX"]}],"jNwr":[function(require,module,exports) {
diff --git a/example/bundle/asyncGenerate.html b/example/bundle/asyncGenerate.html
index c05dcda16..079691e54 100644
--- a/example/bundle/asyncGenerate.html
+++ b/example/bundle/asyncGenerate.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/characterMovement.725f956b.js b/example/bundle/characterMovement.725f956b.js
index 8443ff303..1f77ed45f 100644
--- a/example/bundle/characterMovement.725f956b.js
+++ b/example/bundle/characterMovement.725f956b.js
@@ -36,9 +36,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
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+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/collectTriangles.9c45819a.js b/example/bundle/collectTriangles.9c45819a.js
index 04170e2da..baff9b785 100644
--- a/example/bundle/collectTriangles.9c45819a.js
+++ b/example/bundle/collectTriangles.9c45819a.js
@@ -555,9 +555,9 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
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+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/collectTriangles.html b/example/bundle/collectTriangles.html
index fad8efae5..3d754f1b8 100644
--- a/example/bundle/collectTriangles.html
+++ b/example/bundle/collectTriangles.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="collectTriangles.9c45819a.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="collectTriangles.9c45819a.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/distancecast.4107d8f2.js b/example/bundle/distancecast.4107d8f2.js
index 470d0c5e7..84e02652c 100644
--- a/example/bundle/distancecast.4107d8f2.js
+++ b/example/bundle/distancecast.4107d8f2.js
@@ -561,9 +561,9 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
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+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/distancecast.html b/example/bundle/distancecast.html
index defeeaae8..06205f5d6 100644
--- a/example/bundle/distancecast.html
+++ b/example/bundle/distancecast.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/generateAsync.worker.13d14241.js b/example/bundle/generateAsync.worker.13d14241.js
index e32f4230c..71a16420a 100644
--- a/example/bundle/generateAsync.worker.13d14241.js
+++ b/example/bundle/generateAsync.worker.13d14241.js
@@ -23,9 +23,9 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"HHJX":[function(require,module,exports) {
 var global = arguments[3];
 var e=arguments[3],r=require("three"),t=i(require("../MeshBVH.js"));function i(e){return e&&e.__esModule?e:{default:e}}e.onmessage=function(i){var n=i.data,s=n.index,u=n.position,a=n.options;try{var o=new r.BufferGeometry;o.setAttribute("position",new r.BufferAttribute(u,3,!1)),s&&o.setIndex(new r.BufferAttribute(s,1,!1)),a.lazyGeneration=!1;var f=new t.default(o,a),l=t.default.serialize(f,o,!1);e.postMessage({error:null,serialized:l,position:u},[l.index.buffer,u.buffer])}catch(d){e.postMessage({error:d,serialized:null})}};
diff --git a/example/bundle/physics.50b811f1.js b/example/bundle/physics.50b811f1.js
index d1ab9276e..bd47cc05d 100644
--- a/example/bundle/physics.50b811f1.js
+++ b/example/bundle/physics.50b811f1.js
@@ -34,9 +34,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/randomSampleDebug.32ad2b43.js b/example/bundle/randomSampleDebug.32ad2b43.js
index 500eedb25..9f16b8165 100644
--- a/example/bundle/randomSampleDebug.32ad2b43.js
+++ b/example/bundle/randomSampleDebug.32ad2b43.js
@@ -23,9 +23,9 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
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+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/raycast.88074831.js b/example/bundle/raycast.88074831.js
index 3721184ec..75793ef25 100644
--- a/example/bundle/raycast.88074831.js
+++ b/example/bundle/raycast.88074831.js
@@ -556,9 +556,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
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+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/raycast.html b/example/bundle/raycast.html
index 41b90acce..4886af3ff 100644
--- a/example/bundle/raycast.html
+++ b/example/bundle/raycast.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/sculpt.493e9c78.js b/example/bundle/sculpt.493e9c78.js
index 5ac713f4f..fc04905db 100644
--- a/example/bundle/sculpt.493e9c78.js
+++ b/example/bundle/sculpt.493e9c78.js
@@ -557,9 +557,9 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,v=y;if(65535===p[o+15]){var x=v[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,x,f,a)}else{var m=e+8;c(m,u,i,s)&&l(m,t,n,i,a);var T=v[e+6];c(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,v=y;if(65535===l[a+15]){var x=v[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,x,f)}var m,T,B=v[e+7],h=u[B],w=i.direction[h]>=0;w?(m=e+8,T=v[e+6]):(m=v[e+6],T=e+8);var b=c(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[h];if(w?A<=o[T+B]:A>=o[T+B+3])return b}var M=c(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var v=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,v=3*(r+e);p<v;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,v=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,w=g,b=d,A=y;if(65535===b[B+15]&&l){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,v,x)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,h(S,w,q=c),h(z,w,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||h(S,w,q=c);var D,E=u(q,65535===b[S+15],U,v+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,v+1,x)}else D=E&&e(S,i,u,l,p,v+1,x,c,f);if(D)return!0;h(z,w,O=f);var _,P=u(O,65535===b[z+15],j,v+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,v+1,x)}else _=P&&e(z,i,u,l,p,v+1,x,c,f);return!!_}}();exports.shapecast=v;var x=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,v,x){var c=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===c&&(v.boundingBox||v.computeBoundingBox(),l.set(v.boundingBox.min,v.boundingBox.max,x),l.update(),c=l),!(65535===T[f+15])){var w=t+8,b=B[t+6];return h(w,m,o),c.intersectsBox(o)&&e(w,i,v,x,c)?!0:(h(b,m,o),!(!c.intersectsBox(o)||!e(b,i,v,x,c)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=v.index,q=v.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(x).invert(),v.boundsTree){h(t,m,p),p.matrix.copy(u),p.update(),s.geometry=v;var N=v.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function c(e,r,t,n){return h(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=x;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function h(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
@@ -569,5 +569,5 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
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c=m.getX(r),l=m.getX(s),p=m.getX(i);return n?(a.add(c),a.add(l),a.add(p),o.add(c),o.add(l),o.add(p)):(u.containsPoint(e.a)&&(a.add(c),o.add(c)),u.containsPoint(e.b)&&(a.add(l),o.add(l)),u.containsPoint(e.c)&&(a.add(p),o.add(p))),!1});var y=new l.Vector3;y.copy(e).applyMatrix4(n);var g=new l.Vector3,w=0;if(a.forEach(function(e){d.fromBufferAttribute(f,e),c.add(d),s||(w++,d.fromBufferAttribute(p,e),g.add(d))}),c.normalize(),r.quaternion.setFromUnitVectors(h,c),w&&g.multiplyScalar(1/w),!s){var b=1e-4*z.intensity,v=new l.Plane;v.setFromNormalAndCoplanarPoint(c,g),a.forEach(function(e){d.fromBufferAttribute(p,e);var r=d.distanceTo(y),s=z.invert?-1:1,t=1-r/z.size;if("clay"===z.brush){t=Math.pow(t,3);var o=v.distanceToPoint(d),i=s*Math.min(4*t,1);d.addScaledVector(c,i*b-s*o*i*.3)}else if("normal"===z.brush)t=Math.pow(t,2),d.addScaledVector(c,s*t*b);else if("flatten"===z.brush){t=Math.pow(t,2);var 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c=d.intersectObject(i,!0)[0];if(c)if(n.visible=!0,n.scale.set(z.size,z.size,.1),n.position.copy(c.point),u.visible=z.symmetrical,u.scale.set(z.size,z.size,.1),u.position.copy(c.point),u.position.x*=-1,o.enabled=!1,M.x===1/0&&M.copy(c.point),v||x){for(var m=(w.x-b.x)*window.innerWidth*window.devicePixelRatio,p=(w.y-b.y)*window.innerHeight*window.devicePixelRatio,j=Math.sqrt(m*m+p*p),f=c.point.distanceTo(M),q=.15*z.size,y=Math.max(q/f,1/z.maxSteps),g=j*y,h=0,S=new Set,B=new Set;f>q&&j>200*z.size/c.distance&&(b.lerp(w,y),M.lerp(c.point,y),f-=q,j-=g,E(M,n,!1,S,B),z.symmetrical&&(M.x*=-1,E(M,u,!1,S,B),M.x*=-1),!(++h>z.maxSteps)););h>0?(P(S,B),i.geometry.boundsTree.refit(i.geometry),a.update()):(E(c.point,n,!0),z.symmetrical&&(c.point.x*=-1,E(c.point,u,!0),c.point.x*=-1))}else E(c.point,n,!0),z.symmetrical&&(c.point.x*=-1,E(c.point,u,!0),c.point.x*=-1),b.copy(w),M.copy(c.point);else o.enabled=!0,n.visible=!1,u.visible=!1,b.copy(w),M.setScalar(1/0)}x=v,t.render(r,s),e.end()}B(),V();
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null)
\ No newline at end of file
diff --git a/example/bundle/selection.383a520f.js b/example/bundle/selection.383a520f.js
index 258a79102..4b63e86ac 100644
--- a/example/bundle/selection.383a520f.js
+++ b/example/bundle/selection.383a520f.js
@@ -30,9 +30,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/shapecast.b93a7fe2.js b/example/bundle/shapecast.b93a7fe2.js
index d7d184790..f7c24de26 100644
--- a/example/bundle/shapecast.b93a7fe2.js
+++ b/example/bundle/shapecast.b93a7fe2.js
@@ -560,9 +560,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"mmvR":[function(require,module,exports) {
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+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=l,exports.raycastFirst=p,exports.setBuffer=T,exports.clearBuffer=B,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),r=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/OrientedBox.js"),n=require("./Utils/TriangleUtils.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),o=new e.Box3,s=new e.Vector3,u=["x","y","z"];function l(e,t,n,i,a){var o=2*e,u=g,p=d,x=y;if(65535===p[o+15]){var c=x[e+6],f=p[o+14];(0,r.intersectTris)(t,t.geometry,n,i,c,f,a)}else{var m=e+8;v(m,u,i,s)&&l(m,t,n,i,a);var T=x[e+6];v(T,u,i,s)&&l(T,t,n,i,a)}}function p(e,t,n,i){var a=2*e,o=g,l=d,x=y;if(65535===l[a+15]){var c=x[e+6],f=l[a+14];return(0,r.intersectClosestTri)(t,t.geometry,n,i,c,f)}var m,T,B=x[e+7],w=u[B],h=i.direction[w]>=0;h?(m=e+8,T=x[e+6]):(m=x[e+6],T=e+8);var b=v(m,o,i,s)?p(m,t,n,i):null;if(b){var A=b.point[w];if(h?A<=o[T+B]:A>=o[T+B+3])return b}var M=v(T,o,i,s)?p(T,t,n,i):null;return b&&M?b.distance<=M.distance?b:M:b||M||null}var x=function(){var r=new i.SeparatingAxisTriangle,t=new e.Box3,o=new e.Box3;function s(e,r,t,i,a,o,s){for(var u=t.index,l=t.attributes.position,p=3*e,x=3*(r+e);p<x;p+=3)if((0,n.setTriangle)(s,p,u,l),s.needsUpdate=!0,i(s,p,p+1,p+2,a,o))return!0;return!1}return function e(n,i,u,l){var p=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,x=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,c=arguments.length>6&&void 0!==arguments[6]?arguments[6]:r,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:t,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:o;function m(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e+=8);return n[e+6]}function T(e){for(var r=2*e,t=d,n=y;65535!==t[r+15];)r=2*(e=n[e+6]);return n[e+6]+t[r+14]}var B=2*n,h=g,b=d,A=y;if(65535===b[B+15]){var M=i.geometry;return s(A[n+6],b[B+14],M,l,!1,x,c)}var U,j,q,O,C=n+8,N=A[n+6],S=C,z=N;if(p&&(O=f,w(S,h,q=v),w(z,h,O),U=p(q),(j=p(O))<U)){S=N,z=C;var I=U;U=j,j=I,q=O}q||w(S,h,q=v);var D,E=u(q,65535===b[S+15],U,x+1);if(E===a.CONTAINED){var F=i.geometry,G=m(S);D=s(G,T(S)-G,F,l,!0,x+1,c)}else D=E&&e(S,i,u,l,p,x+1,c,v,f);if(D)return!0;w(z,h,O=f);var _,P=u(O,65535===b[z+15],j,x+1);if(P===a.CONTAINED){var R=i.geometry,V=m(z);_=s(V,T(z)-V,R,l,!0,x+1,c)}else _=P&&e(z,i,u,l,p,x+1,c,v,f);return!!_}}();exports.shapecast=x;var c=function(){var r=new i.SeparatingAxisTriangle,a=new i.SeparatingAxisTriangle,s=new e.Mesh,u=new e.Matrix4,l=new t.OrientedBox,p=new t.OrientedBox;return function e(t,i,x,c){var v=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,f=2*t,m=g,T=d,B=y;if(null===v&&(x.boundingBox||x.computeBoundingBox(),l.set(x.boundingBox.min,x.boundingBox.max,c),l.update(),v=l),!(65535===T[f+15])){var h=t+8,b=B[t+6];return w(h,m,o),v.intersectsBox(o)&&e(h,i,x,c,v)?!0:(w(b,m,o),!(!v.intersectsBox(o)||!e(b,i,x,c,v)))}var A=i.geometry,M=A.index,U=A.attributes.position,j=x.index,q=x.attributes.position,O=B[t+6],C=T[f+14];if(u.copy(c).invert(),x.boundsTree){w(t,m,p),p.matrix.copy(u),p.update(),s.geometry=x;var N=x.boundsTree.shapecast(s,function(e){return p.intersectsBox(e)},function(e){e.a.applyMatrix4(c),e.b.applyMatrix4(c),e.c.applyMatrix4(c),e.update();for(var r=3*O,t=3*(C+O);r<t;r+=3)if((0,n.setTriangle)(a,r,M,U),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,N}for(var S=3*O,z=C+3*O;S<z;S+=3){(0,n.setTriangle)(r,S,M,U),r.a.applyMatrix4(u),r.b.applyMatrix4(u),r.c.applyMatrix4(u),r.update();for(var I=0,D=j.count;I<D;I+=3)if((0,n.setTriangle)(a,I,j,q),a.update(),r.intersectsTriangle(a))return!0}}}();function v(e,r,t,n){return w(e,r,o),t.intersectBox(o,n)}exports.intersectsGeometry=c;var f,g,d,y,m=[];function T(e){f&&m.push(f),f=e,g=new Float32Array(e),d=new Uint16Array(e),y=new Uint32Array(e)}function B(){f=null,g=null,d=null,y=null,m.length&&T(m.pop())}function w(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=!1,s=u(this._roots);try{for(s.s();!(r=s.n()).done;){var l=r.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,n,i))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=s(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,o=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw o}}}}function s(e,t){if(e){if("string"==typeof e)return l(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?l(e,t):void 0}}function l(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function c(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=Symbol("skip tree generation"),h=new n.OrientedBox,p=new e.Vector3,g=new i.SeparatingAxisTriangle,b=new e.Vector3,x=new e.Vector3,m=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/umd/index.js b/umd/index.js
index d32f910a5..0ebb0fb63 100644
--- a/umd/index.js
+++ b/umd/index.js
@@ -2157,10 +2157,11 @@
 
 		}
 
-		return function shapecast( nodeIndex32,
+		return function shapecast(
+			nodeIndex32,
 			mesh,
 			intersectsBoundsFunc,
-			intersectsTriangleFunc = null,
+			intersectsTriangleFunc,
 			nodeScoreFunc = null,
 			depth = 0,
 			triangle = _triangle,
@@ -2207,7 +2208,7 @@
 			let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
-			if ( isLeaf && intersectsTriangleFunc ) {
+			if ( isLeaf ) {
 
 				const geometry = mesh.geometry;
 				const offset = uint32Array[ nodeIndex32 + 6 ];
@@ -2825,6 +2826,9 @@
 
 		shapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {
 
+			// default the triangle intersection function
+			intersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );
+
 			let result = false;
 			for ( const root of this._roots ) {
 
diff --git a/umd/index.js.map b/umd/index.js.map
index 479124390..1c6ad6c47 100644
--- a/umd/index.js.map
+++ b/umd/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t// if the geometry doesn't have a bounding box, then let's politely populate it using\r\n\t// the work we did to determine the BVH root bounds\r\n\tif ( geo.boundingBox == null ) {\r\n\r\n\t\tconst rootBox = new Box3();\r\n\t\tgeo.boundingBox = new Box3();\r\n\r\n\t\tfor ( let root of roots ) {\r\n\r\n\t\t\tgeo.boundingBox.union( arrayToBox( root.boundingData, rootBox ) );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast( nodeIndex32,\r\n\t\tmesh,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc = null,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf && intersectsTriangleFunc ) {\r\n\r\n\t\t\tconst geometry = mesh.geometry;\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! geometry.boundingBox ) {\r\n\r\n\t\t\t\tgeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = mesh.geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = geometry.index;\r\n\t\t\tconst pos = geometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( geometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = geometry;\r\n\t\t\t\tconst res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n","import { Vector3, BufferAttribute } from 'three';\r\nimport { CENTER } from './Constants.js';\r\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport {\r\n\traycast,\r\n\traycastFirst,\r\n\tshapecast,\r\n\tintersectsGeometry,\r\n\tsetBuffer,\r\n\tclearBuffer,\r\n} from './castFunctions.js';\r\n\r\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\r\n\r\nconst obb = new OrientedBox();\r\nconst temp = new Vector3();\r\nconst tri2 = new SeparatingAxisTriangle();\r\nconst temp1 = new Vector3();\r\nconst temp2 = new Vector3();\r\n\r\nexport default class MeshBVH {\r\n\r\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\r\n\r\n\t\tconst rootData = bvh._roots;\r\n\t\tconst indexAttribute = geometry.getIndex();\r\n\t\tconst result = {\r\n\t\t\troots: rootData,\r\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\r\n\t\t};\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tstatic deserialize( data, geometry, setIndex = true ) {\r\n\r\n\t\tconst { index, roots } = data;\r\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\r\n\t\tbvh._roots = roots;\r\n\r\n\t\tif ( setIndex ) {\r\n\r\n\t\t\tconst indexAttribute = geometry.getIndex();\r\n\t\t\tif ( indexAttribute === null ) {\r\n\r\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\r\n\t\t\t\tgeometry.setIndex( newIndex );\r\n\r\n\t\t\t} else if ( indexAttribute.array !== index ) {\r\n\r\n\t\t\t\tindexAttribute.array.set( index );\r\n\t\t\t\tindexAttribute.needsUpdate = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn bvh;\r\n\r\n\t}\r\n\r\n\tconstructor( geo, options = {} ) {\r\n\r\n\t\tif ( ! geo.isBufferGeometry ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\r\n\r\n\t\t} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\r\n\r\n\t\t} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\r\n\r\n\t\t}\r\n\r\n\t\t// default options\r\n\t\toptions = Object.assign( {\r\n\r\n\t\t\tstrategy: CENTER,\r\n\t\t\tmaxDepth: 40,\r\n\t\t\tmaxLeafTris: 10,\r\n\t\t\tverbose: true,\r\n\r\n\t\t\t// undocumented options\r\n\r\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\r\n\t\t\t[ SKIP_GENERATION ]: false\r\n\r\n\t\t}, options );\r\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\r\n\r\n\t\tthis._roots = null;\r\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\r\n\r\n\t\t\tthis._roots = buildPackedTree( geo, options );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\trefit( geometry ) {\r\n\r\n\t\tconst indexArr = geometry.index.array;\r\n\t\tconst posArr = geometry.attributes.position.array;\r\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\r\n\t\tconst roots = this._roots;\r\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\r\n\r\n\t\t\tbuffer = roots[ i ];\r\n\t\t\tuint32Array = new Uint32Array( buffer );\r\n\t\t\tuint16Array = new Uint16Array( buffer );\r\n\t\t\tfloat32Array = new Float32Array( buffer );\r\n\t\t\t_traverse( 0 );\r\n\r\n\t\t}\n\r\n\t\tfunction _traverse( node32Index ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\r\n\t\t\t\tlet minx = Infinity;\r\n\t\t\t\tlet miny = Infinity;\r\n\t\t\t\tlet minz = Infinity;\r\n\t\t\t\tlet maxx = - Infinity;\r\n\t\t\t\tlet maxy = - Infinity;\r\n\t\t\t\tlet maxz = - Infinity;\r\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\r\n\r\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\r\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\r\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\r\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\r\n\r\n\t\t\t\t\tif ( x < minx ) minx = x;\r\n\t\t\t\t\tif ( x > maxx ) maxx = x;\r\n\r\n\t\t\t\t\tif ( y < miny ) miny = y;\r\n\t\t\t\t\tif ( y > maxy ) maxy = y;\r\n\r\n\t\t\t\t\tif ( z < minz ) minz = z;\r\n\t\t\t\t\tif ( z > maxz ) maxz = z;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\r\n\t\t\t\t) {\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + 8;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\r\n\t\t\t\tconst leftChange = _traverse( left );\r\n\t\t\t\tconst rightChange = _traverse( right );\r\n\t\t\t\tconst didChange = leftChange || rightChange;\r\n\r\n\t\t\t\tif ( didChange ) {\r\n\r\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\t\tconst lefti = left + i;\r\n\t\t\t\t\t\tconst righti = right + i;\r\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\r\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\r\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\r\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\r\n\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn didChange;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\ttraverse( callback, rootIndex = 0 ) {\r\n\r\n\t\tconst buffer = this._roots[ rootIndex ];\r\n\t\tconst uint32Array = new Uint32Array( buffer );\r\n\t\tconst uint16Array = new Uint16Array( buffer );\r\n\t\t_traverse( 0 );\r\n\r\n\t\tfunction _traverse( node32Index, depth = 0 ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\r\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\r\n\r\n\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t_traverse( left, depth + 1 );\r\n\t\t\t\t\t_traverse( right, depth + 1 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t/* Core Cast Functions */\r\n\traycast( mesh, raycaster, ray, intersects ) {\r\n\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\traycast( 0, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t}\r\n\r\n\traycastFirst( mesh, raycaster, ray ) {\r\n\r\n\t\tlet closestResult = null;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tconst result = raycastFirst( 0, mesh, raycaster, ray );\r\n\r\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\r\n\r\n\t\t\t\tclosestResult = result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn closestResult;\r\n\r\n\t}\r\n\r\n\tintersectsGeometry( mesh, geometry, geomToMesh ) {\r\n\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, geomToMesh );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\r\n\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = shapecast( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\t/* Derived Cast Functions */\r\n\tintersectsBox( mesh, box, boxToMesh ) {\r\n\r\n\t\tobb.set( box.min, box.max, boxToMesh );\r\n\t\tobb.update();\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => obb.intersectsBox( box ),\r\n\t\t\ttri => obb.intersectsTriangle( tri )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tintersectsSphere( mesh, sphere ) {\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => sphere.intersectsBox( box ),\r\n\t\t\ttri => tri.intersectsSphere( sphere )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tclosestPointToGeometry( mesh, geom, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\tif ( ! geom.boundingBox ) {\r\n\r\n\t\t\tgeom.computeBoundingBox();\r\n\r\n\t\t}\r\n\r\n\t\tobb.set( geom.boundingBox.min, geom.boundingBox.max, geometryToBvh );\r\n\t\tobb.update();\r\n\r\n\t\tconst pos = geom.attributes.position;\r\n\t\tconst index = geom.index;\r\n\r\n\t\tlet tempTarget1 = null;\r\n\t\tlet tempTarget2 = null;\r\n\t\tif ( target1 ) {\r\n\r\n\t\t\ttempTarget1 = temp1;\r\n\r\n\t\t}\r\n\r\n\t\tif ( target2 ) {\r\n\r\n\t\t\ttempTarget2 = temp2;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\tif ( tri.needsUpdate ) {\r\n\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tconst sphere1 = tri.sphere;\r\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\r\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\r\n\r\n\t\t\t\t\tconst sphere2 = tri2.sphere;\r\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\r\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\r\n\r\n\t\t\t\t\t\tcontinue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\ttri2.update();\r\n\r\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\r\n\t\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\t\tif ( target1 ) {\r\n\r\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tif ( target2 ) {\r\n\r\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\r\n\t\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn false;\r\n\r\n\t\t\t},\r\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\t// early out if under minThreshold\r\n\t\t// skip checking if over maxThreshold\r\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\r\n\t\t// returns Infinity if no value found\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\ttri.closestPointToPoint( point, temp );\r\n\t\t\t\tconst dist = point.distanceTo( temp );\r\n\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\tif ( target ) {\r\n\r\n\t\t\t\t\t\ttarget.copy( temp );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t},\r\n\t\t\tbox => box.distanceToPoint( point )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n}\r\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as 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+{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t// if the geometry doesn't have a bounding box, then let's politely populate it using\r\n\t// the work we did to determine the BVH root bounds\r\n\tif ( geo.boundingBox == null ) {\r\n\r\n\t\tconst rootBox = new Box3();\r\n\t\tgeo.boundingBox = new Box3();\r\n\r\n\t\tfor ( let root of roots ) {\r\n\r\n\t\t\tgeo.boundingBox.union( arrayToBox( root.boundingData, rootBox ) );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\r\nexport const closestPointLineToLine = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\r\n\tconst dir1 = new Vector3();\r\n\tconst dir2 = new Vector3();\r\n\tconst v02 = new Vector3();\r\n\treturn function closestPointLineToLine( l1, l2, result ) {\r\n\r\n\t\tconst v0 = l1.start;\r\n\t\tconst v10 = dir1;\r\n\t\tconst v2 = l2.start;\r\n\t\tconst v32 = dir2;\r\n\r\n\t\tv02.subVectors( v0, v2 );\r\n\t\tdir1.subVectors( l1.end, l2.start );\r\n\t\tdir2.subVectors( l2.end, l2.start );\r\n\r\n\t\t// float d0232 = v02.Dot(v32);\r\n\t\tconst d0232 = v02.dot( v32 );\r\n\r\n\t\t// float d3210 = v32.Dot(v10);\r\n\t\tconst d3210 = v32.dot( v10 );\r\n\r\n\t\t// float d3232 = v32.Dot(v32);\r\n\t\tconst d3232 = v32.dot( v32 );\r\n\r\n\t\t// float d0210 = v02.Dot(v10);\r\n\t\tconst d0210 = v02.dot( v10 );\r\n\r\n\t\t// float d1010 = v10.Dot(v10);\r\n\t\tconst d1010 = v10.dot( v10 );\r\n\r\n\t\t// float denom = d1010*d3232 - d3210*d3210;\r\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\r\n\r\n\t\tlet d, d2;\r\n\t\tif ( denom !== 0 ) {\r\n\r\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\r\n\r\n\t\t} else {\r\n\r\n\t\t\td = 0;\r\n\r\n\t\t}\r\n\r\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\r\n\r\n\t\tresult.x = d;\r\n\t\tresult.y = d2;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const closestPointsSegmentToSegment = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\r\n\tconst paramResult = new Vector2();\r\n\tconst temp1 = new Vector3();\r\n\tconst temp2 = new Vector3();\r\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\r\n\r\n\t\tclosestPointLineToLine( l1, l2, paramResult );\r\n\r\n\t\tlet d = paramResult.x;\r\n\t\tlet d2 = paramResult.y;\r\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\tl1.at( d, target1 );\r\n\t\t\tl2.at( d2, target2 );\r\n\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d >= 0 && d <= 1 ) {\r\n\r\n\t\t\t// Only d2 is out of bounds.\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tl2.at( 0, target2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl2.at( 1, target2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\t// Only d is out of bounds.\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tl1.at( 0, target1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl1.at( 1, target1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\r\n\t\t\treturn;\r\n\r\n\t\t} else {\r\n\r\n\t\t\t// Both u and u2 are out of bounds.\r\n\t\t\tlet p;\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tp = l1.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp = l1.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tlet p2;\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tp2 = l2.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp2 = l2.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst closestPoint = temp1;\r\n\t\t\tconst closestPoint2 = temp2;\r\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\r\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\r\n\r\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\r\n\r\n\t\t\t\ttarget1.copy( closestPoint );\r\n\t\t\t\ttarget2.copy( p2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\ttarget1.copy( p );\r\n\t\t\t\ttarget2.copy( closestPoint2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nexport const sphereIntersectTriangle = ( function () {\r\n\r\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\r\n\tconst closestPointTemp = new Vector3();\r\n\tconst projectedPointTemp = new Vector3();\r\n\tconst planeTemp = new Plane();\r\n\tconst lineTemp = new Line3();\r\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\r\n\r\n\t\tconst { radius, center } = sphere;\r\n\t\tconst { a, b, c } = triangle;\r\n\r\n\t\t// phase 1\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = b;\r\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = b;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\t// phase 2\r\n\t\tconst plane = triangle.getPlane( planeTemp );\r\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\r\n\t\tif ( dp <= radius ) {\r\n\r\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\r\n\t\t\tconst cp = triangle.containsPoint( pp );\r\n\t\t\tif ( cp ) return true;\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\r\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\r\n\r\nexport class OrientedBox extends Box3 {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isOrientedBox = true;\r\n\t\tthis.matrix = new Matrix4();\r\n\t\tthis.invMatrix = new Matrix4();\r\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\r\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.sphere = new Sphere();\r\n\r\n\t}\r\n\r\n\tset( min, max, matrix ) {\r\n\r\n\t\tsuper.set( min, max );\r\n\t\tthis.matrix = matrix;\r\n\r\n\t}\r\n\r\n\tcopy( other ) {\r\n\r\n\t\tsuper.copy( other );\r\n\t\tthis.matrix.copy( other.matrix );\r\n\r\n\t}\r\n\r\n}\r\n\r\nOrientedBox.prototype.update = ( function () {\r\n\r\n\treturn function update() {\r\n\r\n\t\tconst matrix = this.matrix;\r\n\t\tconst min = this.min;\r\n\t\tconst max = this.max;\r\n\r\n\t\tconst points = this.points;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\r\n\t\t\t\t\tconst v = points[ i ];\r\n\t\t\t\t\tv.x = x ? max.x : min.x;\r\n\t\t\t\t\tv.y = y ? max.y : min.y;\r\n\t\t\t\t\tv.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tv.applyMatrix4( matrix );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst minVec = points[ 0 ];\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst index = 1 << i;\r\n\t\t\tconst pi = points[ index ];\r\n\r\n\t\t\taxis.subVectors( minVec, pi );\r\n\t\t\tsb.setFromPoints( axis, points );\r\n\r\n\t\t}\r\n\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\r\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\r\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\r\n\r\n\t\tthis.invMatrix.copy( this.matrix ).invert();\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsBox = ( function () {\r\n\r\n\tconst aabbBounds = new SeparatingAxisBounds();\r\n\treturn function intersectsBox( box ) {\r\n\r\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\r\n\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\r\n\t\taabbBounds.min = min.x;\r\n\t\taabbBounds.max = max.x;\r\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.y;\r\n\t\taabbBounds.max = max.y;\r\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.z;\r\n\t\taabbBounds.max = max.z;\r\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\taabbBounds.setFromBox( axis, box );\r\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri = new SeparatingAxisTriangle();\r\n\tconst pointsArr = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( triangle ) {\r\n\r\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri.copy( triangle );\r\n\t\t\tsaTri.update();\r\n\t\t\ttriangle = saTri;\r\n\r\n\t\t} else if ( triangle.needsUpdate ) {\r\n\r\n\t\t\ttriangle.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\r\n\t\tpointsArr[ 0 ] = triangle.a;\r\n\t\tpointsArr[ 1 ] = triangle.b;\r\n\t\tpointsArr[ 2 ] = triangle.c;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst sa = satAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst triSatBounds = triangle.satBounds;\r\n\t\tconst triSatAxes = triangle.satAxes;\r\n\t\tconst points = this.points;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = triSatBounds[ i ];\r\n\t\t\tconst sa = triSatAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.closestPointToPoint = ( function () {\r\n\r\n\treturn function closestPointToPoint( point, target1 ) {\r\n\r\n\t\ttarget1\r\n\t\t\t.copy( point )\r\n\t\t\t.applyMatrix4( this.invMatrix )\r\n\t\t\t.clamp( this.min, this.max )\r\n\t\t\t.applyMatrix4( this.matrix );\r\n\r\n\t\treturn target1;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nOrientedBox.prototype.distanceToBox = ( function () {\r\n\r\n\tconst xyzFields = [ 'x', 'y', 'z' ];\r\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\r\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\r\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.intersectsBox( box ) ) {\r\n\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tbox.getCenter( point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tconst threshold2 = threshold * threshold;\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst points = this.points;\r\n\r\n\r\n\t\t// iterate over every edge and compare distances\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check over all these points\r\n\t\tfor ( let i = 0; i < 8; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tpoint2.copy( p ).clamp( min, max );\r\n\r\n\t\t\tconst dist = p.distanceToSquared( point2 );\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( p );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// generate and check all line segment distances\r\n\t\tlet count = 0;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\r\n\r\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\r\n\r\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\r\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\r\n\r\n\t\t\t\t\t// get obb line segments\r\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst p1 = points[ index ];\r\n\t\t\t\t\tconst p2 = points[ index2 ];\r\n\t\t\t\t\tconst line1 = segments1[ count ];\r\n\t\t\t\t\tline1.set( p1, p2 );\r\n\r\n\r\n\t\t\t\t\t// get aabb line segments\r\n\t\t\t\t\tconst f1 = xyzFields[ i ];\r\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\r\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\r\n\t\t\t\t\tconst line2 = segments2[ count ];\r\n\t\t\t\t\tconst start = line2.start;\r\n\t\t\t\t\tconst end = line2.end;\r\n\r\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\r\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\r\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tcount ++;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check all the other boxes point\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\r\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\r\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\r\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 12; i ++ ) {\r\n\r\n\t\t\tconst l1 = segments1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\r\n\r\n\t\t\t\tconst l2 = segments2[ i2 ];\r\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\r\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst geometry = mesh.geometry;\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! geometry.boundingBox ) {\r\n\r\n\t\t\t\tgeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = mesh.geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = geometry.index;\r\n\t\t\tconst pos = geometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( geometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = geometry;\r\n\t\t\t\tconst res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n","import { Vector3, BufferAttribute } from 'three';\r\nimport { CENTER } from './Constants.js';\r\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport {\r\n\traycast,\r\n\traycastFirst,\r\n\tshapecast,\r\n\tintersectsGeometry,\r\n\tsetBuffer,\r\n\tclearBuffer,\r\n} from './castFunctions.js';\r\n\r\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\r\n\r\nconst obb = new OrientedBox();\r\nconst temp = new Vector3();\r\nconst tri2 = new SeparatingAxisTriangle();\r\nconst temp1 = new Vector3();\r\nconst temp2 = new Vector3();\r\n\r\nexport default class MeshBVH {\r\n\r\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\r\n\r\n\t\tconst rootData = bvh._roots;\r\n\t\tconst indexAttribute = geometry.getIndex();\r\n\t\tconst result = {\r\n\t\t\troots: rootData,\r\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\r\n\t\t};\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tstatic deserialize( data, geometry, setIndex = true ) {\r\n\r\n\t\tconst { index, roots } = data;\r\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\r\n\t\tbvh._roots = roots;\r\n\r\n\t\tif ( setIndex ) {\r\n\r\n\t\t\tconst indexAttribute = geometry.getIndex();\r\n\t\t\tif ( indexAttribute === null ) {\r\n\r\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\r\n\t\t\t\tgeometry.setIndex( newIndex );\r\n\r\n\t\t\t} else if ( indexAttribute.array !== index ) {\r\n\r\n\t\t\t\tindexAttribute.array.set( index );\r\n\t\t\t\tindexAttribute.needsUpdate = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn bvh;\r\n\r\n\t}\r\n\r\n\tconstructor( geo, options = {} ) {\r\n\r\n\t\tif ( ! geo.isBufferGeometry ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\r\n\r\n\t\t} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\r\n\r\n\t\t} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\r\n\r\n\t\t}\r\n\r\n\t\t// default options\r\n\t\toptions = Object.assign( {\r\n\r\n\t\t\tstrategy: CENTER,\r\n\t\t\tmaxDepth: 40,\r\n\t\t\tmaxLeafTris: 10,\r\n\t\t\tverbose: true,\r\n\r\n\t\t\t// undocumented options\r\n\r\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\r\n\t\t\t[ SKIP_GENERATION ]: false\r\n\r\n\t\t}, options );\r\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\r\n\r\n\t\tthis._roots = null;\r\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\r\n\r\n\t\t\tthis._roots = buildPackedTree( geo, options );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\trefit( geometry ) {\r\n\r\n\t\tconst indexArr = geometry.index.array;\r\n\t\tconst posArr = geometry.attributes.position.array;\r\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\r\n\t\tconst roots = this._roots;\r\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\r\n\r\n\t\t\tbuffer = roots[ i ];\r\n\t\t\tuint32Array = new Uint32Array( buffer );\r\n\t\t\tuint16Array = new Uint16Array( buffer );\r\n\t\t\tfloat32Array = new Float32Array( buffer );\r\n\t\t\t_traverse( 0 );\r\n\r\n\t\t}\r\n\r\n\t\tfunction _traverse( node32Index ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\r\n\t\t\t\tlet minx = Infinity;\r\n\t\t\t\tlet miny = Infinity;\r\n\t\t\t\tlet minz = Infinity;\r\n\t\t\t\tlet maxx = - Infinity;\r\n\t\t\t\tlet maxy = - Infinity;\r\n\t\t\t\tlet maxz = - Infinity;\r\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\r\n\r\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\r\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\r\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\r\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\r\n\r\n\t\t\t\t\tif ( x < minx ) minx = x;\r\n\t\t\t\t\tif ( x > maxx ) maxx = x;\r\n\r\n\t\t\t\t\tif ( y < miny ) miny = y;\r\n\t\t\t\t\tif ( y > maxy ) maxy = y;\r\n\r\n\t\t\t\t\tif ( z < minz ) minz = z;\r\n\t\t\t\t\tif ( z > maxz ) maxz = z;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\r\n\t\t\t\t) {\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + 8;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\r\n\t\t\t\tconst leftChange = _traverse( left );\r\n\t\t\t\tconst rightChange = _traverse( right );\r\n\t\t\t\tconst didChange = leftChange || rightChange;\r\n\r\n\t\t\t\tif ( didChange ) {\r\n\r\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\t\tconst lefti = left + i;\r\n\t\t\t\t\t\tconst righti = right + i;\r\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\r\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\r\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\r\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\r\n\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn didChange;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\ttraverse( callback, rootIndex = 0 ) {\r\n\r\n\t\tconst buffer = this._roots[ rootIndex ];\r\n\t\tconst uint32Array = new Uint32Array( buffer );\r\n\t\tconst uint16Array = new Uint16Array( buffer );\r\n\t\t_traverse( 0 );\r\n\r\n\t\tfunction _traverse( node32Index, depth = 0 ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\r\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\r\n\r\n\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t_traverse( left, depth + 1 );\r\n\t\t\t\t\t_traverse( right, depth + 1 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t/* Core Cast Functions */\r\n\traycast( mesh, raycaster, ray, intersects ) {\r\n\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\traycast( 0, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t}\r\n\r\n\traycastFirst( mesh, raycaster, ray ) {\r\n\r\n\t\tlet closestResult = null;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tconst result = raycastFirst( 0, mesh, raycaster, ray );\r\n\r\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\r\n\r\n\t\t\t\tclosestResult = result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn closestResult;\r\n\r\n\t}\r\n\r\n\tintersectsGeometry( mesh, geometry, geomToMesh ) {\r\n\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, geomToMesh );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\r\n\r\n\t\t// default the triangle intersection function\r\n\t\tintersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );\r\n\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = shapecast( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\t/* Derived Cast Functions */\r\n\tintersectsBox( mesh, box, boxToMesh ) {\r\n\r\n\t\tobb.set( box.min, box.max, boxToMesh );\r\n\t\tobb.update();\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => obb.intersectsBox( box ),\r\n\t\t\ttri => obb.intersectsTriangle( tri )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tintersectsSphere( mesh, sphere ) {\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => sphere.intersectsBox( box ),\r\n\t\t\ttri => tri.intersectsSphere( sphere )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tclosestPointToGeometry( mesh, geom, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\tif ( ! geom.boundingBox ) {\r\n\r\n\t\t\tgeom.computeBoundingBox();\r\n\r\n\t\t}\r\n\r\n\t\tobb.set( geom.boundingBox.min, geom.boundingBox.max, geometryToBvh );\r\n\t\tobb.update();\r\n\r\n\t\tconst pos = geom.attributes.position;\r\n\t\tconst index = geom.index;\r\n\r\n\t\tlet tempTarget1 = null;\r\n\t\tlet tempTarget2 = null;\r\n\t\tif ( target1 ) {\r\n\r\n\t\t\ttempTarget1 = temp1;\r\n\r\n\t\t}\r\n\r\n\t\tif ( target2 ) {\r\n\r\n\t\t\ttempTarget2 = temp2;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\tif ( tri.needsUpdate ) {\r\n\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tconst sphere1 = tri.sphere;\r\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\r\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\r\n\r\n\t\t\t\t\tconst sphere2 = tri2.sphere;\r\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\r\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\r\n\r\n\t\t\t\t\t\tcontinue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\ttri2.update();\r\n\r\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\r\n\t\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\t\tif ( target1 ) {\r\n\r\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tif ( target2 ) {\r\n\r\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\r\n\t\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn false;\r\n\r\n\t\t\t},\r\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\t// early out if under minThreshold\r\n\t\t// skip checking if over maxThreshold\r\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\r\n\t\t// returns Infinity if no value found\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\ttri.closestPointToPoint( point, temp );\r\n\t\t\t\tconst dist = point.distanceTo( temp );\r\n\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\tif ( target ) {\r\n\r\n\t\t\t\t\t\ttarget.copy( temp );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t},\r\n\t\t\tbox => box.distanceToPoint( point )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n}\r\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix 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null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file

From 1ef789e865742daade5e8a3c5e928c623a4e718e Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 21:32:16 -0800
Subject: [PATCH 083/139] add necessary quotes to lgtm.yml

---
 lgtm.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lgtm.yml b/lgtm.yml
index b1022d86b..52f773a25 100644
--- a/lgtm.yml
+++ b/lgtm.yml
@@ -1,3 +1,3 @@
 path_classifiers:
   template:
-    - src/*.template.js
+    - "src/*.template.js"

From 2e4bf9ff1739184c801177c372f69d8f2e29e9d3 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Sun, 7 Mar 2021 21:58:30 -0800
Subject: [PATCH 084/139] Update CHANGELOG.md

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9695acb76..241119654 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Fixed
 - `MeshBVHVisualizer` not using the new geometry BVH if one was generated.
 - `MeshBVHVisualizer` not using the new mesh if it was set.
+- Case where passing in null `intersectsTriangleFunc` to `MeshBVH.shapecast` could throw an error.
 
 ## [0.3.7] - 2021-03-06
 ### Fixed

From f70c32869aa7ce7f5291f1cf40092e08b93104f6 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 07:18:49 -0800
Subject: [PATCH 085/139] retain buffer references

---
 example/sculpt.js             |  2 +-
 src/MeshBVH.js                | 43 +++++++++++++++++++++--------------
 src/castFunctions.js          | 37 +++++++++++++++---------------
 src/castFunctions.template.js | 37 +++++++++++++++---------------
 4 files changed, 65 insertions(+), 54 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 9d5b4bab2..55a946bc0 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -636,7 +636,7 @@ function render() {
 					// so it's up to date for the next one because both of those are used when updating
 					// the model but it's faster to do them here.
 					updateNormals( changedTriangles, changedIndices );
-					targetMesh.geometry.boundsTree.refit( targetMesh.geometry );
+					targetMesh.geometry.boundsTree.refit();
 					bvhHelper.update();
 
 				} else {
diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index e3577ba75..b0880ba4a 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -63,17 +63,17 @@ export default class MeshBVH {
 
 	}
 
-	constructor( geo, options = {} ) {
+	constructor( geometry, options = {} ) {
 
-		if ( ! geo.isBufferGeometry ) {
+		if ( ! geometry.isBufferGeometry ) {
 
 			throw new Error( 'MeshBVH: Only BufferGeometries are supported.' );
 
-		} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {
+		} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {
 
 			throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );
 
-		} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {
+		} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {
 
 			throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );
 
@@ -98,14 +98,19 @@ export default class MeshBVH {
 		this._roots = null;
 		if ( ! options[ SKIP_GENERATION ] ) {
 
-			this._roots = buildPackedTree( geo, options );
+			this._roots = buildPackedTree( geometry, options );
 
 		}
 
+		// retain references to the geometry so we can use them it without having to
+		// take a geometry reference in every function.
+		this.geometry = geometry;
+
 	}
 
-	refit( geometry ) {
+	refit() {
 
+		const geometry = this.geometry;
 		const indexArr = geometry.index.array;
 		const posArr = geometry.attributes.position.array;
 		let buffer, uint32Array, uint16Array, float32Array;
@@ -254,10 +259,11 @@ export default class MeshBVH {
 	/* Core Cast Functions */
 	raycast( mesh, raycaster, ray, intersects ) {
 
+		const geometry = this.geometry;
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			raycast( 0, mesh, raycaster, ray, intersects );
+			raycast( 0, mesh, geometry, raycaster, ray, intersects );
 
 		}
 
@@ -267,11 +273,12 @@ export default class MeshBVH {
 
 	raycastFirst( mesh, raycaster, ray ) {
 
+		const geometry = this.geometry;
 		let closestResult = null;
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			const result = raycastFirst( 0, mesh, raycaster, ray );
+			const result = raycastFirst( 0, mesh, geometry, raycaster, ray );
 
 			if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
 
@@ -287,13 +294,14 @@ export default class MeshBVH {
 
 	}
 
-	intersectsGeometry( mesh, geometry, geomToMesh ) {
+	intersectsGeometry( mesh, otherGeometry, geomToMesh ) {
 
+		const geometry = this.geometry;
 		let result = false;
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			result = intersectsGeometry( 0, mesh, geometry, geomToMesh );
+			result = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );
 
 			if ( result ) {
 
@@ -314,11 +322,12 @@ export default class MeshBVH {
 		// default the triangle intersection function
 		intersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );
 
+		const geometry = this.geometry;
 		let result = false;
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			result = shapecast( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
+			result = shapecast( 0, mesh, geometry, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
 
 			if ( result ) {
 
@@ -358,19 +367,19 @@ export default class MeshBVH {
 
 	}
 
-	closestPointToGeometry( mesh, geom, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {
+	closestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {
 
-		if ( ! geom.boundingBox ) {
+		if ( ! otherGeometry.boundingBox ) {
 
-			geom.computeBoundingBox();
+			otherGeometry.computeBoundingBox();
 
 		}
 
-		obb.set( geom.boundingBox.min, geom.boundingBox.max, geometryToBvh );
+		obb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );
 		obb.update();
 
-		const pos = geom.attributes.position;
-		const index = geom.index;
+		const pos = otherGeometry.attributes.position;
+		const index = otherGeometry.index;
 
 		let tempTarget1 = null;
 		let tempTarget2 = null;
diff --git a/src/castFunctions.js b/src/castFunctions.js
index 70e25f059..61829fa4e 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -14,7 +14,7 @@ const boundingBox = new Box3();
 const boxIntersection = new Vector3();
 const xyzFields = [ 'x', 'y', 'z' ];
 
-export function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
+export function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {
 
 	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -24,7 +24,7 @@ export function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
 		const offset = uint32Array[ nodeIndex32 + 6 ];
 		const count = uint16Array[ nodeIndex16 + 14 ];
 
-		intersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );
+		intersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );
 
 	} else {
 
@@ -46,7 +46,7 @@ export function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
 
 }
 
-export function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {
+export function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {
 
 	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -55,7 +55,7 @@ export function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {
 
 		const offset = uint32Array[ nodeIndex32 + 6 ];
 		const count = uint16Array[ nodeIndex16 + 14 ];
-		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );
+		return intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );
 
 	} else {
 
@@ -158,6 +158,7 @@ export const shapecast = ( function () {
 	return function shapecast(
 		nodeIndex32,
 		mesh,
+		geometry,
 		intersectsBoundsFunc,
 		intersectsTriangleFunc,
 		nodeScoreFunc = null,
@@ -208,7 +209,6 @@ export const shapecast = ( function () {
 		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 		if ( isLeaf ) {
 
-			const geometry = mesh.geometry;
 			const offset = uint32Array[ nodeIndex32 + 6 ];
 			const count = uint16Array[ nodeIndex16 + 14 ];
 			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
@@ -264,7 +264,6 @@ export const shapecast = ( function () {
 			let c1StopTraversal;
 			if ( c1Intersection === CONTAINED ) {
 
-				const geometry = mesh.geometry;
 				const offset = getLeftOffset( c1 );
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
@@ -278,6 +277,7 @@ export const shapecast = ( function () {
 					shapecast(
 						c1,
 						mesh,
+						geometry,
 						intersectsBoundsFunc,
 						intersectsTriangleFunc,
 						nodeScoreFunc,
@@ -316,6 +316,7 @@ export const shapecast = ( function () {
 					shapecast(
 						c2,
 						mesh,
+						geometry,
 						intersectsBoundsFunc,
 						intersectsTriangleFunc,
 						nodeScoreFunc,
@@ -347,19 +348,19 @@ export const intersectsGeometry = ( function () {
 	const obb = new OrientedBox();
 	const obb2 = new OrientedBox();
 
-	return function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
+	return function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {
 
 		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 		if ( cachedObb === null ) {
 
-			if ( ! geometry.boundingBox ) {
+			if ( ! otherGeometry.boundingBox ) {
 
-				geometry.computeBoundingBox();
+				otherGeometry.computeBoundingBox();
 
 			}
 
-			obb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );
+			obb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );
 			obb.update();
 			cachedObb = obb;
 
@@ -368,12 +369,12 @@ export const intersectsGeometry = ( function () {
 		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 		if ( isLeaf ) {
 
-			const thisGeometry = mesh.geometry;
+			const thisGeometry = geometry;
 			const thisIndex = thisGeometry.index;
 			const thisPos = thisGeometry.attributes.position;
 
-			const index = geometry.index;
-			const pos = geometry.attributes.position;
+			const index = otherGeometry.index;
+			const pos = otherGeometry.attributes.position;
 
 			const offset = uint32Array[ nodeIndex32 + 6 ];
 			const count = uint16Array[ nodeIndex16 + 14 ];
@@ -383,14 +384,14 @@ export const intersectsGeometry = ( function () {
 			// here.
 			invertedMat.copy( geometryToBvh ).invert();
 
-			if ( geometry.boundsTree ) {
+			if ( otherGeometry.boundsTree ) {
 
 				arrayToBox( nodeIndex32, float32Array, obb2 );
 				obb2.matrix.copy( invertedMat );
 				obb2.update();
 
-				cachedMesh.geometry = geometry;
-				const res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
+				cachedMesh.geometry = otherGeometry;
+				const res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
 
 					tri.a.applyMatrix4( geometryToBvh );
 					tri.b.applyMatrix4( geometryToBvh );
@@ -453,14 +454,14 @@ export const intersectsGeometry = ( function () {
 			arrayToBox( left, float32Array, boundingBox );
 			const leftIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
 
 			if ( leftIntersection ) return true;
 
 			arrayToBox( right, float32Array, boundingBox );
 			const rightIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
 
 			if ( rightIntersection ) return true;
 
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index 860ef9333..4b177ab1a 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -16,7 +16,7 @@ const boundingBox = new Box3();
 const boxIntersection = new Vector3();
 const xyzFields = [ 'x', 'y', 'z' ];
 
-export function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
+export function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {
 
 	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -26,7 +26,7 @@ export function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
 		const offset = OFFSET( nodeIndex32 );
 		const count = COUNT( nodeIndex16 );
 
-		intersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );
+		intersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );
 
 	} else {
 
@@ -48,7 +48,7 @@ export function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
 
 }
 
-export function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {
+export function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {
 
 	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -57,7 +57,7 @@ export function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {
 
 		const offset = OFFSET( nodeIndex32 );
 		const count = COUNT( nodeIndex16 );
-		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );
+		return intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );
 
 	} else {
 
@@ -160,6 +160,7 @@ export const shapecast = ( function () {
 	return function shapecast(
 		nodeIndex32,
 		mesh,
+		geometry,
 		intersectsBoundsFunc,
 		intersectsTriangleFunc,
 		nodeScoreFunc = null,
@@ -210,7 +211,6 @@ export const shapecast = ( function () {
 		const isLeaf = IS_LEAF( nodeIndex16 );
 		if ( isLeaf ) {
 
-			const geometry = mesh.geometry;
 			const offset = OFFSET( nodeIndex32 );
 			const count = COUNT( nodeIndex16 );
 			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
@@ -266,7 +266,6 @@ export const shapecast = ( function () {
 			let c1StopTraversal;
 			if ( c1Intersection === CONTAINED ) {
 
-				const geometry = mesh.geometry;
 				const offset = getLeftOffset( c1 );
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
@@ -280,6 +279,7 @@ export const shapecast = ( function () {
 					shapecast(
 						c1,
 						mesh,
+						geometry,
 						intersectsBoundsFunc,
 						intersectsTriangleFunc,
 						nodeScoreFunc,
@@ -318,6 +318,7 @@ export const shapecast = ( function () {
 					shapecast(
 						c2,
 						mesh,
+						geometry,
 						intersectsBoundsFunc,
 						intersectsTriangleFunc,
 						nodeScoreFunc,
@@ -349,19 +350,19 @@ export const intersectsGeometry = ( function () {
 	const obb = new OrientedBox();
 	const obb2 = new OrientedBox();
 
-	return function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
+	return function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {
 
 		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 		if ( cachedObb === null ) {
 
-			if ( ! geometry.boundingBox ) {
+			if ( ! otherGeometry.boundingBox ) {
 
-				geometry.computeBoundingBox();
+				otherGeometry.computeBoundingBox();
 
 			}
 
-			obb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );
+			obb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );
 			obb.update();
 			cachedObb = obb;
 
@@ -370,12 +371,12 @@ export const intersectsGeometry = ( function () {
 		const isLeaf = IS_LEAF( nodeIndex16 );
 		if ( isLeaf ) {
 
-			const thisGeometry = mesh.geometry;
+			const thisGeometry = geometry;
 			const thisIndex = thisGeometry.index;
 			const thisPos = thisGeometry.attributes.position;
 
-			const index = geometry.index;
-			const pos = geometry.attributes.position;
+			const index = otherGeometry.index;
+			const pos = otherGeometry.attributes.position;
 
 			const offset = OFFSET( nodeIndex32 );
 			const count = COUNT( nodeIndex16 );
@@ -385,14 +386,14 @@ export const intersectsGeometry = ( function () {
 			// here.
 			invertedMat.copy( geometryToBvh ).invert();
 
-			if ( geometry.boundsTree ) {
+			if ( otherGeometry.boundsTree ) {
 
 				arrayToBox( BOUNDING_DATA_INDEX( nodeIndex32 ), float32Array, obb2 );
 				obb2.matrix.copy( invertedMat );
 				obb2.update();
 
-				cachedMesh.geometry = geometry;
-				const res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
+				cachedMesh.geometry = otherGeometry;
+				const res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
 
 					tri.a.applyMatrix4( geometryToBvh );
 					tri.b.applyMatrix4( geometryToBvh );
@@ -455,14 +456,14 @@ export const intersectsGeometry = ( function () {
 			arrayToBox( BOUNDING_DATA_INDEX( left ), float32Array, boundingBox );
 			const leftIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
 
 			if ( leftIntersection ) return true;
 
 			arrayToBox( BOUNDING_DATA_INDEX( right ), float32Array, boundingBox );
 			const rightIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
 
 			if ( rightIntersection ) return true;
 

From 1beea650fb1a1d44fb1792302f641407db1ae0eb Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 07:25:20 -0800
Subject: [PATCH 086/139] Fix all cast functions

---
 src/castFunctions.js          | 8 ++++----
 src/castFunctions.template.js | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/castFunctions.js b/src/castFunctions.js
index 61829fa4e..9e92839af 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -31,14 +31,14 @@ export function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects
 		const leftIndex = nodeIndex32 + 8;
 		if ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycast( leftIndex, mesh, raycaster, ray, intersects );
+			raycast( leftIndex, mesh, geometry, raycaster, ray, intersects );
 
 		}
 
 		const rightIndex = uint32Array[ nodeIndex32 + 6 ];
 		if ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycast( rightIndex, mesh, raycaster, ray, intersects );
+			raycast( rightIndex, mesh, geometry, raycaster, ray, intersects );
 
 		}
 
@@ -81,7 +81,7 @@ export function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {
 		}
 
 		const c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );
-		const c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;
+		const c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;
 
 		// if we got an intersection in the first node and it's closer than the second node's bounding
 		// box, we don't need to consider the second node because it couldn't possibly be a better result
@@ -104,7 +104,7 @@ export function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {
 		// either there was no intersection in the first node, or there could still be a closer
 		// intersection in the second, so check the second node and then take the better of the two
 		const c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );
-		const c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;
+		const c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;
 
 		if ( c1Result && c2Result ) {
 
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index 4b177ab1a..fb7954ef8 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -33,14 +33,14 @@ export function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects
 		const leftIndex = LEFT_NODE( nodeIndex32 );
 		if ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycast( leftIndex, mesh, raycaster, ray, intersects );
+			raycast( leftIndex, mesh, geometry, raycaster, ray, intersects );
 
 		}
 
 		const rightIndex = RIGHT_NODE( nodeIndex32 );
 		if ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycast( rightIndex, mesh, raycaster, ray, intersects );
+			raycast( rightIndex, mesh, geometry, raycaster, ray, intersects );
 
 		}
 
@@ -83,7 +83,7 @@ export function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {
 		}
 
 		const c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );
-		const c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;
+		const c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;
 
 		// if we got an intersection in the first node and it's closer than the second node's bounding
 		// box, we don't need to consider the second node because it couldn't possibly be a better result
@@ -106,7 +106,7 @@ export function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {
 		// either there was no intersection in the first node, or there could still be a closer
 		// intersection in the second, so check the second node and then take the better of the two
 		const c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );
-		const c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;
+		const c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;
 
 		if ( c1Result && c2Result ) {
 

From cb142e591e40c025155e968c9e2360362441bf7f Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 07:26:53 -0800
Subject: [PATCH 087/139] README update

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index d477b770b..ac2debf10 100644
--- a/README.md
+++ b/README.md
@@ -210,7 +210,7 @@ _NOTE: The returned MeshBVH is a fully generated, buffer packed BVH instance to
 constructor( geometry : BufferGeometry, options : Object )
 ```
 
-Constructs the bounds tree for the given geometry and produces a new index attribute buffer. The available options are
+Constructs the bounds tree for the given geometry and produces a new index attribute buffer. A reference to the passed geometry is retained. The available options are
 
 ```js
 {

From cf6564be3ce901c96ae31e4242f6d949aab3b02b Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 07:55:17 -0800
Subject: [PATCH 088/139] Update comments

---
 example/sculpt.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/example/sculpt.js b/example/sculpt.js
index 55a946bc0..896c250b3 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -193,6 +193,9 @@ function init() {
 	gui.add( { reset }, 'reset' );
 	gui.add( { rebuildBVH: () => {
 
+		// dispose of the bounding box because it's used in BVH construction but
+		// will be out of date here. See issue #222.
+		targetMesh.geometry.boundingBox = null;
 		targetMesh.geometry.computeBoundsTree();
 		bvhHelper.update();
 

From 146759853c6a79855f0c68e6cafb6ece97ab50db Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 08:14:21 -0800
Subject: [PATCH 089/139] Add bounding box benchmark

---
 benchmark/run-benchmark.js | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/benchmark/run-benchmark.js b/benchmark/run-benchmark.js
index 31c1fdfa5..9f8a086bc 100644
--- a/benchmark/run-benchmark.js
+++ b/benchmark/run-benchmark.js
@@ -48,15 +48,38 @@ function runSuite( strategy ) {
 	geometry.computeBoundsTree( options );
 	logExtremes( geometry.boundsTree, geometry );
 
+	geometry.computeBoundingBox();
 	runBenchmark(
 
-		'Compute BVH',
-		null,
+		'Compute BVH w/ BB',
+		() => {
+
+			geometry.boundsTree = null;
+
+		},
 		() => {
 
 			geometry.computeBoundsTree( options );
+
+		},
+		3000,
+		50
+
+	);
+
+	runBenchmark(
+
+		'Compute BVH w/o BB',
+		() => {
+
+			geometry.boundingBox = null;
 			geometry.boundsTree = null;
 
+		},
+		() => {
+
+			geometry.computeBoundsTree( options );
+
 		},
 		3000,
 		50

From 62bd707c2c44bacdb1c0cb261492465c400c55b8 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 16:21:27 -0800
Subject: [PATCH 090/139] Add getBoundingBox function

---
 src/MeshBVH.js                | 29 ++++++++++++++++++++++++++++-
 src/buildFunctions.js         | 15 ---------------
 src/castFunctions.template.js | 13 +------------
 3 files changed, 29 insertions(+), 28 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index b0880ba4a..a3b7a2ae9 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -1,4 +1,4 @@
-import { Vector3, BufferAttribute } from 'three';
+import { Vector3, BufferAttribute, Box3 } from 'three';
 import { CENTER } from './Constants.js';
 import { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';
 import { OrientedBox } from './Utils/OrientedBox.js';
@@ -12,6 +12,7 @@ import {
 	setBuffer,
 	clearBuffer,
 } from './castFunctions.js';
+import { arrayToBox } from './Utils/BufferNodeUtils.js';
 
 const SKIP_GENERATION = Symbol( 'skip tree generation' );
 
@@ -20,6 +21,8 @@ const temp = new Vector3();
 const tri2 = new SeparatingAxisTriangle();
 const temp1 = new Vector3();
 const temp2 = new Vector3();
+const tempBox1 = new Box3();
+const tempBox2 = new Box3();
 
 export default class MeshBVH {
 
@@ -87,6 +90,8 @@ export default class MeshBVH {
 			maxLeafTris: 10,
 			verbose: true,
 
+			setBoundingBox: true,
+
 			// undocumented options
 
 			// Whether to skip generating the tree. Used for deserialization.
@@ -100,6 +105,12 @@ export default class MeshBVH {
 
 			this._roots = buildPackedTree( geometry, options );
 
+			if ( ! geometry.boundingBox && options.setBoundingBox ) {
+
+				geometry.boundingBox = this.getBoundingBox( new Box3() );
+
+			}
+
 		}
 
 		// retain references to the geometry so we can use them it without having to
@@ -523,4 +534,20 @@ export default class MeshBVH {
 
 	}
 
+	getBoundingBox( target ) {
+
+		target.empty();
+
+		const roots = this._roots;
+		roots.forEach( buffer => {
+
+			arrayToBox( 0, new Float32Array( buffer ), tempBox1 );
+			target.union( tempBox1 );
+
+		} );
+
+		return target;
+
+	}
+
 }
diff --git a/src/buildFunctions.js b/src/buildFunctions.js
index 08ba03b3c..fc8979521 100644
--- a/src/buildFunctions.js
+++ b/src/buildFunctions.js
@@ -623,21 +623,6 @@ export function buildTree( geo, options ) {
 
 	}
 
-	// if the geometry doesn't have a bounding box, then let's politely populate it using
-	// the work we did to determine the BVH root bounds
-	if ( geo.boundingBox == null ) {
-
-		const rootBox = new Box3();
-		geo.boundingBox = new Box3();
-
-		for ( let root of roots ) {
-
-			geo.boundingBox.union( arrayToBox( root.boundingData, rootBox ) );
-
-		}
-
-	}
-
 	return roots;
 
 }
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index fb7954ef8..c657184ca 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -6,6 +6,7 @@
 // with inline buffer reads. See generate-cast-functions.js.
 import { Box3, Vector3, Mesh, Matrix4 } from 'three';
 import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
+import { arrayToBox } from './Utils/BufferNodeUtils.js';
 
 import { OrientedBox } from './Utils/OrientedBox.js';
 import { setTriangle } from './Utils/TriangleUtils.js';
@@ -516,15 +517,3 @@ export function clearBuffer() {
 	}
 
 }
-
-function arrayToBox( nodeIndex32, array, target ) {
-
-	target.min.x = array[ nodeIndex32 ];
-	target.min.y = array[ nodeIndex32 + 1 ];
-	target.min.z = array[ nodeIndex32 + 2 ];
-
-	target.max.x = array[ nodeIndex32 + 3 ];
-	target.max.y = array[ nodeIndex32 + 4 ];
-	target.max.z = array[ nodeIndex32 + 5 ];
-
-}

From d12e1f50062cea4a85726c54970f27ddb053008d Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 16:26:08 -0800
Subject: [PATCH 091/139] Create the bounding box from MeshBVH Worker

---
 src/workers/GenerateMeshBVHWorker.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/workers/GenerateMeshBVHWorker.js b/src/workers/GenerateMeshBVHWorker.js
index aba16e663..60593caa7 100644
--- a/src/workers/GenerateMeshBVHWorker.js
+++ b/src/workers/GenerateMeshBVHWorker.js
@@ -1,3 +1,4 @@
+import { Box3 } from 'three';
 import MeshBVH from '../MeshBVH.js';
 
 export class GenerateMeshBVHWorker {
@@ -35,6 +36,11 @@ export class GenerateMeshBVHWorker {
 				} else {
 
 					const bvh = MeshBVH.deserialize( serialized, geometry, false );
+					const boundsOptions = Object.assign( {
+
+						setBoundingBox: true,
+
+					}, options );
 
 					// we need to replace the arrays because they're neutered entirely by the
 					// webworker transfer.
@@ -45,6 +51,12 @@ export class GenerateMeshBVHWorker {
 
 					}
 
+					if ( boundsOptions.setBoundingBox ) {
+
+						geometry.boundingBox = bvh.getBoundingBox( new Box3() );
+
+					}
+
 					resolve( bvh );
 
 				}

From efd2b4dd31afa037b48dc3626fe7aef5d7c45caa Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 19:39:52 -0800
Subject: [PATCH 092/139] CHANGELOG, README update, benchmark update

---
 CHANGELOG.md               |  2 ++
 README.md                  | 14 +++++++++++++-
 benchmark/run-benchmark.js | 28 ++++++++++++++++++++++++++++
 3 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 241119654..1119eab2c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## Unreleased
 ### Added
 - `MeshBVH.refit` function to refit the bounds to modified vertices.
+- `setBoundingBox` MeshBVH construction option.
+- `MeshBVH.getBoundingBox` function.
 
 ### Changed
 - Removed `src/worker/generateAsync.js` function. Use `GenerateMeshBVHWorker` instead.
diff --git a/README.md b/README.md
index ac2debf10..28e811f96 100644
--- a/README.md
+++ b/README.md
@@ -225,6 +225,10 @@ Constructs the bounds tree for the given geometry and produces a new index attri
     // The number of triangles to aim for in a leaf node.
     maxLeafTris: 10,
 
+	// If true then the bounding box for the geometry is set once the BVH
+	// has been constructed.
+	setBoundingBox: true,
+
     // Print out warnings encountered during tree construction.
     verbose: true,
 
@@ -360,7 +364,15 @@ A generalized cast function that can be used to implement intersection logic for
 refit( geometry : BufferGeometry ) : void
 ```
 
-Refit the node bounds to the current triangle positions. This is quicker than regenerating a new BVH but will not be optimal after significant changes to the vertice.
+Refit the node bounds to the current triangle positions. This is quicker than regenerating a new BVH but will not be optimal after significant changes to the vertices.
+
+### .getBoundingBox
+
+```js
+getBoundingBox( target : Box3 ) : Box3
+```
+
+Get the bounding box of the geometry computed from the root node bounds of the BVH. Significantly faster than `BufferGeometry.computeBoundingBox`.
 
 ## SerializedBVH
 
diff --git a/benchmark/run-benchmark.js b/benchmark/run-benchmark.js
index 9f8a086bc..4d1ef06d1 100644
--- a/benchmark/run-benchmark.js
+++ b/benchmark/run-benchmark.js
@@ -86,6 +86,34 @@ function runSuite( strategy ) {
 
 	);
 
+	const tempBox = new THREE.Box3();
+	runBenchmark(
+
+		'Compute BB w/ BVH',
+		null,
+		() => {
+
+			geometry.boundsTree.getBoundingBox( tempBox );
+
+		},
+		3000,
+		50
+
+	);
+
+	runBenchmark(
+
+		'Compute BB w/o BVH',
+		null,
+		() => {
+
+			geometry.computeBoundingBox();
+
+		},
+		3000,
+		50
+
+	);
 	geometry.computeBoundsTree( options );
 	runBenchmark(
 

From 4fe248cdd694fe1ecb578582b6dee7a9f719ddbc Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 19:43:46 -0800
Subject: [PATCH 093/139] Add tests, update castFunctions

---
 src/MeshBVH.js       |  2 +-
 src/castFunctions.js | 13 +------------
 test/MeshBVH.test.js | 22 ++++++++++++++++++++++
 3 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index a3b7a2ae9..9a6932bf7 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -536,7 +536,7 @@ export default class MeshBVH {
 
 	getBoundingBox( target ) {
 
-		target.empty();
+		target.makeEmpty();
 
 		const roots = this._roots;
 		roots.forEach( buffer => {
diff --git a/src/castFunctions.js b/src/castFunctions.js
index 9e92839af..7785a59db 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -4,6 +4,7 @@
 // with inline buffer reads. See generate-cast-functions.js.
 import { Box3, Vector3, Mesh, Matrix4 } from 'three';
 import { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';
+import { arrayToBox } from './Utils/BufferNodeUtils.js';
 
 import { OrientedBox } from './Utils/OrientedBox.js';
 import { setTriangle } from './Utils/TriangleUtils.js';
@@ -514,15 +515,3 @@ export function clearBuffer() {
 	}
 
 }
-
-function arrayToBox( nodeIndex32, array, target ) {
-
-	target.min.x = array[ nodeIndex32 ];
-	target.min.y = array[ nodeIndex32 + 1 ];
-	target.min.z = array[ nodeIndex32 + 2 ];
-
-	target.max.x = array[ nodeIndex32 + 3 ];
-	target.max.y = array[ nodeIndex32 + 4 ];
-	target.max.z = array[ nodeIndex32 + 5 ];
-
-}
diff --git a/test/MeshBVH.test.js b/test/MeshBVH.test.js
index 3bd5eb28e..4400fb973 100644
--- a/test/MeshBVH.test.js
+++ b/test/MeshBVH.test.js
@@ -250,6 +250,28 @@ describe( 'Options', () => {
 
 	} );
 
+	describe( 'setBoundingBox', () => {
+
+		it( 'should set the bounding box of the geometry when true.', () => {
+
+			mesh.geometry.boundingBox = null;
+			mesh.geometry.computeBoundsTree( { setBoundingBox: true } );
+
+			expect( mesh.geometry.boundingBox ).not.toBe( null );
+
+		} );
+
+		it( 'should not set the bounding box of the geometry when false.', () => {
+
+			mesh.geometry.boundingBox = null;
+			mesh.geometry.computeBoundsTree( { setBoundingBox: false } );
+
+			expect( mesh.geometry.boundingBox ).toBe( null );
+
+		} );
+
+	} );
+
 	describe( 'maxDepth', () => {
 
 		it( 'should not be limited by default', () => {

From 77f6c3e9a46f6724b680af9ccbaf18fb90112738 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 19:45:08 -0800
Subject: [PATCH 094/139] sculpt update

---
 example/sculpt.js | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 896c250b3..12903081c 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -68,7 +68,7 @@ function reset() {
 	geometry = BufferGeometryUtils.mergeVertices( geometry );
 	geometry.attributes.position.setUsage( THREE.DynamicDrawUsage );
 	geometry.attributes.normal.setUsage( THREE.DynamicDrawUsage );
-	geometry.computeBoundsTree();
+	geometry.computeBoundsTree( { setBoundingBox: false } );
 
 	// disable frustum culling because the verts will be updated
 	targetMesh = new THREE.Mesh(
@@ -193,10 +193,9 @@ function init() {
 	gui.add( { reset }, 'reset' );
 	gui.add( { rebuildBVH: () => {
 
-		// dispose of the bounding box because it's used in BVH construction but
-		// will be out of date here. See issue #222.
-		targetMesh.geometry.boundingBox = null;
-		targetMesh.geometry.computeBoundsTree();
+		// don't create a bounding box because it's used in BVH construction but
+		// will be out of date after moving vertices. See issue #222.
+		targetMesh.geometry.computeBoundsTree( { setBoundingBox: false } );
 		bvhHelper.update();
 
 	} }, 'rebuildBVH' );

From 08b196c869af1143f930f175a65ff56440b708b9 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 19:57:05 -0800
Subject: [PATCH 095/139] README update

---
 README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 28e811f96..b6a578d30 100644
--- a/README.md
+++ b/README.md
@@ -225,9 +225,9 @@ Constructs the bounds tree for the given geometry and produces a new index attri
     // The number of triangles to aim for in a leaf node.
     maxLeafTris: 10,
 
-	// If true then the bounding box for the geometry is set once the BVH
-	// has been constructed.
-	setBoundingBox: true,
+    // If true then the bounding box for the geometry is set once the BVH
+    // has been constructed.
+    setBoundingBox: true,
 
     // Print out warnings encountered during tree construction.
     verbose: true,

From 53af38a45d11ecd8f747192c674c16b0e2a76d05 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 19:58:00 -0800
Subject: [PATCH 096/139] benchmark spacing

---
 benchmark/run-benchmark.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/benchmark/run-benchmark.js b/benchmark/run-benchmark.js
index 4d1ef06d1..659d5f898 100644
--- a/benchmark/run-benchmark.js
+++ b/benchmark/run-benchmark.js
@@ -114,6 +114,7 @@ function runSuite( strategy ) {
 		50
 
 	);
+
 	geometry.computeBoundsTree( options );
 	runBenchmark(
 

From b4f96dd4bb616dd66d2ffe3f13b6a5b9380a56af Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 20:00:26 -0800
Subject: [PATCH 097/139] fix variable naming

---
 src/MeshBVH.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 9a6932bf7..85a1fa23f 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -21,8 +21,7 @@ const temp = new Vector3();
 const tri2 = new SeparatingAxisTriangle();
 const temp1 = new Vector3();
 const temp2 = new Vector3();
-const tempBox1 = new Box3();
-const tempBox2 = new Box3();
+const tempBox = new Box3();
 
 export default class MeshBVH {
 
@@ -541,8 +540,8 @@ export default class MeshBVH {
 		const roots = this._roots;
 		roots.forEach( buffer => {
 
-			arrayToBox( 0, new Float32Array( buffer ), tempBox1 );
-			target.union( tempBox1 );
+			arrayToBox( 0, new Float32Array( buffer ), tempBox );
+			target.union( tempBox );
 
 		} );
 

From 925355d99ed3dff016c2ef9a8512c3fdb40e724e Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Tue, 9 Mar 2021 20:02:29 -0800
Subject: [PATCH 098/139] Add missing file

---
 src/Utils/BufferNodeUtils.js | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 src/Utils/BufferNodeUtils.js

diff --git a/src/Utils/BufferNodeUtils.js b/src/Utils/BufferNodeUtils.js
new file mode 100644
index 000000000..e85f8c4fd
--- /dev/null
+++ b/src/Utils/BufferNodeUtils.js
@@ -0,0 +1,11 @@
+export function arrayToBox( nodeIndex32, array, target ) {
+
+	target.min.x = array[ nodeIndex32 ];
+	target.min.y = array[ nodeIndex32 + 1 ];
+	target.min.z = array[ nodeIndex32 + 2 ];
+
+	target.max.x = array[ nodeIndex32 + 3 ];
+	target.max.y = array[ nodeIndex32 + 4 ];
+	target.max.z = array[ nodeIndex32 + 5 ];
+
+}

From 7cc99031e71c6a31fb1bb878f06a4b9ceed2f171 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 10:15:14 -0800
Subject: [PATCH 099/139] build

---
 example/bundle/asyncGenerate.4a48c6e8.js      |  18 ++-
 example/bundle/asyncGenerate.html             |   3 +-
 example/bundle/characterMovement.725f956b.js  |  14 +-
 example/bundle/collectTriangles.9c45819a.js   |  14 +-
 example/bundle/collectTriangles.html          |   3 +-
 example/bundle/distancecast.4107d8f2.js       |  14 +-
 example/bundle/distancecast.html              |   3 +-
 .../bundle/generateAsync.worker.13d14241.js   |  14 +-
 example/bundle/physics.50b811f1.js            |  14 +-
 example/bundle/randomSampleDebug.32ad2b43.js  |  14 +-
 example/bundle/raycast.88074831.js            |  14 +-
 example/bundle/raycast.html                   |   3 +-
 example/bundle/sculpt.493e9c78.js             |  16 +-
 example/bundle/selection.383a520f.js          |  14 +-
 example/bundle/shapecast.b93a7fe2.js          |  14 +-
 umd/index.js                                  | 152 ++++++++++--------
 umd/index.js.map                              |   2 +-
 17 files changed, 186 insertions(+), 140 deletions(-)

diff --git a/example/bundle/asyncGenerate.4a48c6e8.js b/example/bundle/asyncGenerate.4a48c6e8.js
index 7e860e9c9..abf786eaf 100644
--- a/example/bundle/asyncGenerate.4a48c6e8.js
+++ b/example/bundle/asyncGenerate.4a48c6e8.js
@@ -12,7 +12,7 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{}],"a4zN":[function(require,module,exports) {
 "use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
 },{}],"IMAa":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var y=g(l,f,s,e,a,c);if(y===e||y===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=y-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=y,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),y(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,y=n.left,g=n.right,h=n.splitAxis;if((d=c(r+w,y))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,g),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
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@@ -27,13 +27,15 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"dbR2":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.GenerateMeshBVHWorker=void 0;var e=r(require("../MeshBVH.js"));function r(e){return e&&e.__esModule?e:{default:e}}function n(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function t(e,r){for(var n=0;n<r.length;n++){var t=r[n];t.enumerable=t.enumerable||!1,t.configurable=!0,"value"in t&&(t.writable=!0),Object.defineProperty(e,t.key,t)}}function i(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}var o=function(){function r(){n(this,r),this.running=!1,this.worker=new Worker("generateAsync.worker.13d14241.js")}return i(r,[{key:"generate",value:function(r){var n=this,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(this.running)throw new Error("GenerateMeshBVHWorker: Already running job.");var i=this.worker;return this.running=!0,new Promise(function(o,a){i.onmessage=function(t){n.running=!1,i.onmessage=null;var s=t.data,u=s.serialized,f=s.position,l=s.error;if(l)a(new Error(l));else{var d=e.default.deserialize(u,r,!1);r.attributes.position.array=f,r.index&&(r.index.array=u.index),o(d)}};var s=r.index?r.index.array:null,u=r.attributes.position.array;if(u.isInterleavedBufferAttribute||s&&s.isInterleavedBufferAttribute)throw new Error("GenerateMeshBVHWorker: InterleavedBufferAttribute are not supported for the geometry attributes.");var f=[u];s&&f.push(s),i.postMessage({index:s,position:u,options:t},f.map(function(e){return e.buffer}))})}},{key:"terminate",value:function(){this.worker.terminate()}}]),r}();exports.GenerateMeshBVHWorker=o;
-},{"../MeshBVH.js":"nIyY","./generateAsync.worker.js":[["generateAsync.worker.13d14241.js","HHJX"],"HHJX"]}],"jNwr":[function(require,module,exports) {
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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+},{}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,i=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw i}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function v(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function y(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&y(e.prototype,t),r&&y(e,r),e}var h=Symbol("skip tree generation"),p=new n.OrientedBox,g=new e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"dbR2":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.GenerateMeshBVHWorker=void 0;var e=require("three"),r=n(require("../MeshBVH.js"));function n(e){return e&&e.__esModule?e:{default:e}}function t(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function i(e,r){for(var n=0;n<r.length;n++){var t=r[n];t.enumerable=t.enumerable||!1,t.configurable=!0,"value"in t&&(t.writable=!0),Object.defineProperty(e,t.key,t)}}function o(e,r,n){return r&&i(e.prototype,r),n&&i(e,n),e}var a=function(){function n(){t(this,n),this.running=!1,this.worker=new Worker("generateAsync.worker.13d14241.js")}return o(n,[{key:"generate",value:function(n){var t=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(this.running)throw new Error("GenerateMeshBVHWorker: Already running job.");var o=this.worker;return this.running=!0,new Promise(function(a,u){o.onmessage=function(s){t.running=!1,o.onmessage=null;var f=s.data,l=f.serialized,d=f.position,c=f.error;if(c)u(new Error(c));else{var h=r.default.deserialize(l,n,!1),g=Object.assign({setBoundingBox:!0},i);n.attributes.position.array=d,n.index&&(n.index.array=l.index),g.setBoundingBox&&(n.boundingBox=h.getBoundingBox(new e.Box3)),a(h)}};var s=n.index?n.index.array:null,f=n.attributes.position.array;if(f.isInterleavedBufferAttribute||s&&s.isInterleavedBufferAttribute)throw new Error("GenerateMeshBVHWorker: InterleavedBufferAttribute are not supported for the geometry attributes.");var l=[f];s&&l.push(s),o.postMessage({index:s,position:f,options:i},l.map(function(e){return e.buffer}))})}},{key:"terminate",value:function(){this.worker.terminate()}}]),n}();exports.GenerateMeshBVHWorker=a;
+},{"three":"dKqR","../MeshBVH.js":"nIyY","./generateAsync.worker.js":[["generateAsync.worker.13d14241.js","HHJX"],"HHJX"]}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
diff --git a/example/bundle/asyncGenerate.html b/example/bundle/asyncGenerate.html
index 079691e54..c05dcda16 100644
--- a/example/bundle/asyncGenerate.html
+++ b/example/bundle/asyncGenerate.html
@@ -1 +1,2 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script> </body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script>
+</body></html>
\ No newline at end of file
diff --git a/example/bundle/characterMovement.725f956b.js b/example/bundle/characterMovement.725f956b.js
index 1f77ed45f..a680b2b55 100644
--- a/example/bundle/characterMovement.725f956b.js
+++ b/example/bundle/characterMovement.725f956b.js
@@ -20,7 +20,7 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{}],"a4zN":[function(require,module,exports) {
 "use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
 },{}],"IMAa":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var y=g(l,f,s,e,a,c);if(y===e||y===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=y-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=y,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),y(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,y=n.left,g=n.right,h=n.splitAxis;if((d=c(r+w,y))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,g),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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@@ -35,11 +35,13 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(c(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0},y,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[y]||(this._roots=(0,r.buildPackedTree)(e,i))}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,u=new n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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+},{}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return 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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
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diff --git a/example/bundle/collectTriangles.9c45819a.js b/example/bundle/collectTriangles.9c45819a.js
index baff9b785..e2d95da05 100644
--- a/example/bundle/collectTriangles.9c45819a.js
+++ b/example/bundle/collectTriangles.9c45819a.js
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n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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+},{}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return 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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
diff --git a/example/bundle/collectTriangles.html b/example/bundle/collectTriangles.html
index 3d754f1b8..fad8efae5 100644
--- a/example/bundle/collectTriangles.html
+++ b/example/bundle/collectTriangles.html
@@ -1 +1,2 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="collectTriangles.9c45819a.js"></script> </body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="collectTriangles.9c45819a.js"></script>
+</body></html>
\ No newline at end of file
diff --git a/example/bundle/distancecast.4107d8f2.js b/example/bundle/distancecast.4107d8f2.js
index 84e02652c..3e3b36fdc 100644
--- a/example/bundle/distancecast.4107d8f2.js
+++ b/example/bundle/distancecast.4107d8f2.js
@@ -545,7 +545,7 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
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+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
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 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
diff --git a/example/bundle/distancecast.html b/example/bundle/distancecast.html
index 06205f5d6..defeeaae8 100644
--- a/example/bundle/distancecast.html
+++ b/example/bundle/distancecast.html
@@ -1 +1,2 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script> </body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script>
+</body></html>
\ No newline at end of file
diff --git a/example/bundle/generateAsync.worker.13d14241.js b/example/bundle/generateAsync.worker.13d14241.js
index 71a16420a..9fc13a509 100644
--- a/example/bundle/generateAsync.worker.13d14241.js
+++ b/example/bundle/generateAsync.worker.13d14241.js
@@ -7,7 +7,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{}],"a4zN":[function(require,module,exports) {
 "use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
 },{}],"IMAa":[function(require,module,exports) {
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@@ -22,11 +22,13 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
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n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"HHJX":[function(require,module,exports) {
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
+"use strict";function e(e,x,o){o.min.x=x[e],o.min.y=x[e+1],o.min.z=x[e+2],o.max.x=x[e+3],o.max.y=x[e+4],o.max.z=x[e+5]}Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=e;
+},{}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,i=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw i}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function v(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function y(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&y(e.prototype,t),r&&y(e,r),e}var h=Symbol("skip tree generation"),p=new n.OrientedBox,g=new e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"HHJX":[function(require,module,exports) {
 var global = arguments[3];
 var e=arguments[3],r=require("three"),t=i(require("../MeshBVH.js"));function i(e){return e&&e.__esModule?e:{default:e}}e.onmessage=function(i){var n=i.data,s=n.index,u=n.position,a=n.options;try{var o=new r.BufferGeometry;o.setAttribute("position",new r.BufferAttribute(u,3,!1)),s&&o.setIndex(new r.BufferAttribute(s,1,!1)),a.lazyGeneration=!1;var f=new t.default(o,a),l=t.default.serialize(f,o,!1);e.postMessage({error:null,serialized:l,position:u},[l.index.buffer,u.buffer])}catch(d){e.postMessage({error:d,serialized:null})}};
 },{"three":"dKqR","../MeshBVH.js":"nIyY"}]},{},["HHJX"], null)
\ No newline at end of file
diff --git a/example/bundle/physics.50b811f1.js b/example/bundle/physics.50b811f1.js
index bd47cc05d..744242eb2 100644
--- a/example/bundle/physics.50b811f1.js
+++ b/example/bundle/physics.50b811f1.js
@@ -18,7 +18,7 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{}],"a4zN":[function(require,module,exports) {
 "use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
 },{}],"IMAa":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var y=g(l,f,s,e,a,c);if(y===e||y===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=y-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=y,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),y(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,y=n.left,g=n.right,h=n.splitAxis;if((d=c(r+w,y))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,g),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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@@ -33,11 +33,13 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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+},{}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return 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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
diff --git a/example/bundle/randomSampleDebug.32ad2b43.js b/example/bundle/randomSampleDebug.32ad2b43.js
index 9f16b8165..f130fb257 100644
--- a/example/bundle/randomSampleDebug.32ad2b43.js
+++ b/example/bundle/randomSampleDebug.32ad2b43.js
@@ -7,7 +7,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{}],"a4zN":[function(require,module,exports) {
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 },{}],"IMAa":[function(require,module,exports) {
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@@ -22,11 +22,13 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
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n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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+},{}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return 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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
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 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
diff --git a/example/bundle/raycast.88074831.js b/example/bundle/raycast.88074831.js
index 75793ef25..ed430509d 100644
--- a/example/bundle/raycast.88074831.js
+++ b/example/bundle/raycast.88074831.js
@@ -540,7 +540,7 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var y=g(l,f,s,e,a,c);if(y===e||y===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=y-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=y,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),y(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,y=n.left,g=n.right,h=n.splitAxis;if((d=c(r+w,y))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,g),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
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+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
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 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
diff --git a/example/bundle/raycast.html b/example/bundle/raycast.html
index 4886af3ff..41b90acce 100644
--- a/example/bundle/raycast.html
+++ b/example/bundle/raycast.html
@@ -1 +1,2 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script> </body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script>
+</body></html>
\ No newline at end of file
diff --git a/example/bundle/sculpt.493e9c78.js b/example/bundle/sculpt.493e9c78.js
index fc04905db..e6c3369fd 100644
--- a/example/bundle/sculpt.493e9c78.js
+++ b/example/bundle/sculpt.493e9c78.js
@@ -541,7 +541,7 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{}],"a4zN":[function(require,module,exports) {
 "use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
 },{}],"IMAa":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,o))),e<=m||i>=w)return r.offset=t,r.count=e,r;var v=h(r.boundingData,a,s,l,t,e,B);if(-1===v.axis)return r.offset=t,r.count=e,r;var c=y(x,s,l,t,e,v);if(c===t||c===t+e)r.offset=t,r.count=e;else{r.splitAxis=v.axis;var g=new n.default,p=t,b=c-t;r.left=g,g.boundingData=new Float32Array(6),d(s,p,b,g.boundingData,f),u(g,p,b,f,i+1);var D=new n.default,S=c,_=e-b;r.right=D,D.boundingData=new Float32Array(6),d(s,S,_,D.boundingData,f),u(D,S,_,f,i+1)}return r}v(o);var f=new Float32Array(6),s=b(o),l=i.strategy===e.SAH?p(s):null,x=o.index.array,w=i.maxDepth,A=i.verbose,m=i.maxLeafTris,B=i.strategy,E=!1,D=[],S=c(o);if(1===S.length){var _=new n.default,F=S[0];null!=o.boundingBox?(_.boundingData=(0,t.boxToArray)(o.boundingBox),g(s,F.offset,F.count,f)):(_.boundingData=new Float32Array(6),d(s,F.offset,F.count,_.boundingData,f)),u(_,F.offset,F.count,f),D.push(_)}else{var M,T=a(S);try{for(T.s();!(M=T.n()).done;){var I=M.value,j=new n.default;j.boundingData=new Float32Array(6),d(s,I.offset,I.count,j.boundingData,f),u(j,I.offset,I.count,f),D.push(j)}}catch(N){T.e(N)}finally{T.f()}}if(null==o.boundingBox){var L=new r.Box3;o.boundingBox=new r.Box3;var O,U=a(D);try{for(U.s();!(O=U.n()).done;){var H=O.value;o.boundingBox.union((0,t.arrayToBox)(H.boundingData,L))}}catch(N){U.e(N)}finally{U.f()}}return D}var A=32;exports.BYTES_PER_NODE=A;var m=65535;function B(r,n){for(var t,e,o,a=w(r,n),i=[],u=0;u<a.length;u++){var f=a[u],s=v(f),l=new ArrayBuffer(A*s);t=new Float32Array(l),e=new Uint32Array(l),o=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var a=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[a+s]=f[s];if(u){var l=n.offset,v=n.count;return e[a+6]=l,o[i+14]=v,o[i+15]=m,r+A}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+A,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[a+6]=d/4,d=c(d,y),e[a+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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+},{}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return 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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
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r=e.deltaY;1===e.deltaMode&&(r*=40),2===e.deltaMode&&(r*=40),z.size+=1e-4*r,z.size=Math.max(Math.min(z.size,.25),.025),x.updateDisplay()})}function E(e,r){var s=arguments.length>2&&void 0!==arguments[2]&&arguments[2],t=arguments.length>3&&void 0!==arguments[3]?arguments[3]:new Set,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:new Set,n=new l.Matrix4;n.copy(i.matrixWorld).invert();var u=new l.Sphere;u.center.copy(e).applyMatrix4(n),u.radius=z.size;var a=new Set,d=new l.Vector3,c=new l.Vector3,m=i.geometry.index,p=i.geometry.attributes.position,f=i.geometry.attributes.normal,q=new Set;i.geometry.boundsTree.shapecast(i,function(e){var r=u.intersectsBox(e),s=e.min,t=e.max;if(r){for(var o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var n=0;n<=1;n++)if(d.set(0===o?s.x:t.x,0===i?s.y:t.y,0===n?s.z:t.z),!u.containsPoint(d))return j.INTERSECTED;return j.CONTAINED}return r?j.INTERSECTED:j.NOT_INTERSECTED},function(e,r,s,i,n){var d=~~(r/3);q.add(d),t.add(d);var c=m.getX(r),l=m.getX(s),p=m.getX(i);return n?(a.add(c),a.add(l),a.add(p),o.add(c),o.add(l),o.add(p)):(u.containsPoint(e.a)&&(a.add(c),o.add(c)),u.containsPoint(e.b)&&(a.add(l),o.add(l)),u.containsPoint(e.c)&&(a.add(p),o.add(p))),!1});var y=new l.Vector3;y.copy(e).applyMatrix4(n);var g=new l.Vector3,w=0;if(a.forEach(function(e){d.fromBufferAttribute(f,e),c.add(d),s||(w++,d.fromBufferAttribute(p,e),g.add(d))}),c.normalize(),r.quaternion.setFromUnitVectors(h,c),w&&g.multiplyScalar(1/w),!s){var b=1e-4*z.intensity,v=new l.Plane;v.setFromNormalAndCoplanarPoint(c,g),a.forEach(function(e){d.fromBufferAttribute(p,e);var r=d.distanceTo(y),s=z.invert?-1:1,t=1-r/z.size;if("clay"===z.brush){t=Math.pow(t,3);var o=v.distanceToPoint(d),i=s*Math.min(4*t,1);d.addScaledVector(c,i*b-s*o*i*.3)}else if("normal"===z.brush)t=Math.pow(t,2),d.addScaledVector(c,s*t*b);else if("flatten"===z.brush){t=Math.pow(t,2);var n=v.distanceToPoint(d);d.addScaledVector(c,-n*t*z.intensity*.01*.5)}p.setXYZ(e,d.x,d.y,d.z),f.setXYZ(e,0,0,0)}),a.size&&(p.needsUpdate=!0)}}function P(e,r){var s=new l.Vector3,t=new l.Vector3,o=i.geometry.index,n=i.geometry.attributes.position,u=i.geometry.attributes.normal,a=new l.Triangle;e.forEach(function(e){var i=3*e,d=i+0,c=i+1,l=i+2,m=o.getX(d),p=o.getX(c),j=o.getX(l);a.a.fromBufferAttribute(n,m),a.b.fromBufferAttribute(n,p),a.c.fromBufferAttribute(n,j),a.getNormal(t),r.has(m)&&(s.fromBufferAttribute(u,m),s.add(t),u.setXYZ(m,s.x,s.y,s.z)),r.has(p)&&(s.fromBufferAttribute(u,p),s.add(t),u.setXYZ(p,s.x,s.y,s.z)),r.has(j)&&(s.fromBufferAttribute(u,j),s.add(t),u.setXYZ(j,s.x,s.y,s.z))}),r.forEach(function(e){s.fromBufferAttribute(u,e),s.normalize(),u.setXYZ(e,s.x,s.y,s.z)}),u.needsUpdate=!0}function V(){if(requestAnimationFrame(V),e.begin(),o.active)n.visible=!1,M.setScalar(1/0);else{var d=new l.Raycaster;d.setFromCamera(w,s),d.firstHitOnly=!0;var c=d.intersectObject(i,!0)[0];if(c)if(n.visible=!0,n.scale.set(z.size,z.size,.1),n.position.copy(c.point),u.visible=z.symmetrical,u.scale.set(z.size,z.size,.1),u.position.copy(c.point),u.position.x*=-1,o.enabled=!1,M.x===1/0&&M.copy(c.point),v||x){for(var m=(w.x-b.x)*window.innerWidth*window.devicePixelRatio,p=(w.y-b.y)*window.innerHeight*window.devicePixelRatio,j=Math.sqrt(m*m+p*p),f=c.point.distanceTo(M),q=.15*z.size,y=Math.max(q/f,1/z.maxSteps),g=j*y,h=0,S=new Set,B=new Set;f>q&&j>200*z.size/c.distance&&(b.lerp(w,y),M.lerp(c.point,y),f-=q,j-=g,E(M,n,!1,S,B),z.symmetrical&&(M.x*=-1,E(M,u,!1,S,B),M.x*=-1),!(++h>z.maxSteps)););h>0?(P(S,B),i.geometry.boundsTree.refit(i.geometry),a.update()):(E(c.point,n,!0),z.symmetrical&&(c.point.x*=-1,E(c.point,u,!0),c.point.x*=-1))}else E(c.point,n,!0),z.symmetrical&&(c.point.x*=-1,E(c.point,u,!0),c.point.x*=-1),b.copy(w),M.copy(c.point);else o.enabled=!0,n.visible=!1,u.visible=!1,b.copy(w),M.setScalar(1/0)}x=v,t.render(r,s),e.end()}B(),V();
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strict";require("core-js/modules/es6.array.copy-within"),require("core-js/modules/es6.array.fill"),require("core-js/modules/es6.array.find"),require("core-js/modules/es6.array.find-index"),require("core-js/modules/es7.array.flat-map"),require("core-js/modules/es6.array.from"),require("core-js/modules/es7.array.includes"),require("core-js/modules/es6.array.iterator"),require("core-js/modules/es6.array.of"),require("core-js/modules/es6.array.sort"),require("core-js/modules/es6.array.species"),require("core-js/modules/es6.date.to-json"),require("core-js/modules/es6.date.to-primitive"),require("core-js/modules/es6.function.has-instance"),require("core-js/modules/es6.function.name"),require("core-js/modules/es6.map"),require("core-js/modules/es6.math.acosh"),require("core-js/modules/es6.math.asinh"),require("core-js/modules/es6.math.atanh"),require("core-js/modules/es6.math.cbrt"),require("core-js/modules/es6.math.clz32"),require("core-js/modules/es6.math.cosh"),require("core-js/modules/es6.math.expm1"),require("core-js/modules/es6.math.fround"),require("core-js/modules/es6.math.hypot"),require("core-js/modules/es6.math.imul"),require("core-js/modules/es6.math.log1p"),require("core-js/modules/es6.math.log10"),require("core-js/modules/es6.math.log2"),require("core-js/modules/es6.math.sign"),require("core-js/modules/es6.math.sinh"),require("core-js/modules/es6.math.tanh"),require("core-js/modules/es6.math.trunc"),require("core-js/modules/es6.number.constructor"),require("core-js/modules/es6.number.epsilon"),require("core-js/modules/es6.number.is-finite"),require("core-js/modules/es6.number.is-integer"),require("core-js/modules/es6.number.is-nan"),require("core-js/modules/es6.number.is-safe-integer"),require("core-js/modules/es6.number.max-safe-integer"),require("core-js/modules/es6.number.min-safe-integer"),require("core-js/modules/es6.number.parse-float"),require("core-js/modules/es6.number.parse-int"),require("core-js/modules/es6.object.assign"),require("core-js/modules/es7.object.define-getter"),require("core-js/modules/es7.object.define-setter"),require("core-js/modules/es7.object.entries"),require("core-js/modules/es6.object.freeze"),require("core-js/modules/es6.object.get-own-property-descriptor"),require("core-js/modules/es7.object.get-own-property-descriptors"),require("core-js/modules/es6.object.get-own-property-names"),require("core-js/modules/es6.object.get-prototype-of"),require("core-js/modules/es7.object.lookup-getter"),require("core-js/modules/es7.object.lookup-setter"),require("core-js/modules/es6.object.prevent-extensions"),require("core-js/modules/es6.object.to-string"),require("core-js/modules/es6.object.is"),require("core-js/modules/es6.object.is-frozen"),require("core-js/modules/es6.object.is-sealed"),require("core-js/modules/es6.object.is-extensible"),require("core-js/modules/es6.object.keys"),require("core-js/modules/es6.object.seal"),require("core-js/modules/es6.object.set-prototype-of"),require("core-js/modules/es7.object.values"),require("core-js/modules/es6.promise"),require("core-js/modules/es7.promise.finally"),require("core-js/modules/es6.reflect.apply"),require("core-js/modules/es6.reflect.construct"),require("core-js/modules/es6.reflect.define-property"),require("core-js/modules/es6.reflect.delete-property"),require("core-js/modules/es6.reflect.get"),require("core-js/modules/es6.reflect.get-own-property-descriptor"),require("core-js/modules/es6.reflect.get-prototype-of"),require("core-js/modules/es6.reflect.has"),require("core-js/modules/es6.reflect.is-extensible"),require("core-js/modules/es6.reflect.own-keys"),require("core-js/modules/es6.reflect.prevent-extensions"),require("core-js/modules/es6.reflect.set"),require("core-js/modules/es6.reflect.set-prototype-of"),require("core-js/modules/es6.regexp.constructor"),require("core-js/modules/es6.regexp.flags"),require("core-js/modules/es6.regexp.match"),require("core-js/modules/es6.regexp.replace"),require("core-js/modules/es6.regexp.split"),require("core-js/modules/es6.regexp.search"),require("core-js/modules/es6.regexp.to-string"),require("core-js/modules/es6.set"),require("core-js/modules/es6.symbol"),require("core-js/modules/es7.symbol.async-iterator"),require("core-js/modules/es6.string.anchor"),require("core-js/modules/es6.string.big"),require("core-js/modules/es6.string.blink"),require("core-js/modules/es6.string.bold"),require("core-js/modules/es6.string.code-point-at"),require("core-js/modules/es6.string.ends-with"),require("core-js/modules/es6.string.fixed"),require("core-js/modules/es6.string.fontcolor"),require("core-js/modules/es6.string.fontsize"),require("core-js/modules/es6.string.from-code-point"),require("core-js/modules/es6.string.includes"),require("core-js/modules/es6.string.italics"),require("core-js/modules/es6.string.iterator"),require("core-js/modules/es6.string.link"),require("core-js/modules/es7.string.pad-start"),require("core-js/modules/es7.string.pad-end"),require("core-js/modules/es6.string.raw"),require("core-js/modules/es6.string.repeat"),require("core-js/modules/es6.string.small"),require("core-js/modules/es6.string.starts-with"),require("core-js/modules/es6.string.strike"),require("core-js/modules/es6.string.sub"),require("core-js/modules/es6.string.sup"),require("core-js/modules/es7.string.trim-left"),require("core-js/modules/es7.string.trim-right"),require("core-js/modules/es6.typed.array-buffer"),require("core-js/modules/es6.typed.int8-array"),require("core-js/modules/es6.typed.uint8-array"),require("core-js/modules/es6.typed.uint8-clamped-array"),require("core-js/modules/es6.typed.int16-array"),require("core-js/modules/es6.typed.uint16-array"),require("core-js/modules/es6.typed.int32-array"),require("core-js/modules/es6.typed.uint32-array"),require("core-js/modules/es6.typed.float32-array"),require("core-js/modules/es6.typed.float64-array"),require("core-js/modules/es6.weak-map"),require("core-js/modules/es6.weak-set"),require("core-js/modules/web.timers"),require("core-js/modules/web.immediate"),require("core-js/modules/web.dom.iterable"),require("regenerator-runtime/runtime");var e,r,s,t,o,i,n,u,a,d=y(require("stats.js/src/Stats")),c=q(require("dat.gui")),l=q(require("three")),m=require("three/examples/jsm/controls/OrbitControls.js"),p=require("three/examples/jsm/utils/BufferGeometryUtils.js"),j=require("../src/index.js");function f(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return f=function(){return e},e}function q(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=f();if(r&&r.has(e))return r.get(e);var s={},t=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if(Object.prototype.hasOwnProperty.call(e,o)){var i=t?Object.getOwnPropertyDescriptor(e,o):null;i&&(i.get||i.set)?Object.defineProperty(s,o,i):s[o]=e[o]}return s.default=e,r&&r.set(e,s),s}function y(e){return e&&e.__esModule?e:{default:e}}l.Mesh.prototype.raycast=j.acceleratedRaycast,l.BufferGeometry.prototype.computeBoundsTree=j.computeBoundsTree,l.BufferGeometry.prototype.disposeBoundsTree=j.disposeBoundsTree;var g,h=new l.Vector3(0,0,1),w=new l.Vector2,b=new l.Vector2,v=!1,x=!1,B=new l.Vector3,M={size:.1,brush:"clay",intensity:50,maxSteps:10,invert:!1,symmetrical:!0,flatShading:!1,depth:10,displayHelper:!1};function z(){i&&(i.geometry.dispose(),i.material.dispose(),r.remove(i)),g||(g=(new l.TextureLoader).load("../textures/skinHazardousarts2.jpg"));var e=new l.IcosahedronBufferGeometry(1,100);e.deleteAttribute("uv"),(e=p.BufferGeometryUtils.mergeVertices(e)).attributes.position.setUsage(l.DynamicDrawUsage),e.attributes.normal.setUsage(l.DynamicDrawUsage),e.computeBoundsTree({setBoundingBox:!1}),(i=new l.Mesh(e,new l.MeshMatcapMaterial({flatShading:M.flatShading,matcap:g}))).material.matcap.encoding=l.sRGBEncoding,i.frustumCulled=!1,r.add(i),a||((a=new j.MeshBVHVisualizer(i,M.depth)).visible=M.displayHelper,r.add(a)),a.mesh=i,a.update()}function S(){(t=new l.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),t.setSize(window.innerWidth,window.innerHeight),t.setClearColor(1251612,1),t.gammaOutput=!0,document.body.appendChild(t.domElement),(r=new l.Scene).fog=new l.Fog(1251612,20,60);var p=new l.DirectionalLight(16777215,.5);p.position.set(1,1,1),r.add(p),r.add(new l.AmbientLight(16777215,.4)),z();for(var j=[new l.Vector3,new l.Vector3(0,0,1)],f=0;f<50;f++){var q=f+1,y=Math.sin(2*Math.PI*f/50),g=Math.cos(2*Math.PI*f/50),h=Math.sin(2*Math.PI*q/50),b=Math.cos(2*Math.PI*q/50);j.push(new l.Vector3(y,g,0),new l.Vector3(h,b,0))}(n=new l.LineSegments).geometry.setFromPoints(j),n.material.color.set(16485376),r.add(n),u=n.clone(),r.add(u),(s=new l.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,3),s.far=100,s.updateProjectionMatrix(),(o=new m.OrbitControls(s,t.domElement)).minDistance=1.5,e=new d.default,document.body.appendChild(e.dom);var x=new c.GUI,B=x.addFolder("Sculpting");B.add(M,"brush",["normal","clay","flatten"]),B.add(M,"size").min(.025).max(.25).step(.005),B.add(M,"intensity").min(1).max(100).step(1),B.add(M,"maxSteps").min(1).max(25).step(1),B.add(M,"symmetrical"),B.add(M,"invert"),B.add(M,"flatShading").onChange(function(e){i.material.flatShading=e,i.material.needsUpdate=!0}),B.open();var S=x.addFolder("BVH Helper");S.add(M,"depth").min(1).max(20).step(1).onChange(function(e){a.depth=parseFloat(e),a.update()}),S.add(M,"displayHelper").onChange(function(e){a.visible=e}),S.open(),x.add({reset:z},"reset"),x.add({rebuildBVH:function(){i.geometry.computeBoundsTree({setBoundingBox:!1}),a.update()}},"rebuildBVH"),x.open(),o.addEventListener("start",function(){this.active=!0}),o.addEventListener("end",function(){this.active=!1}),window.addEventListener("resize",function(){s.aspect=window.innerWidth/window.innerHeight,s.updateProjectionMatrix(),t.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("mousemove",function(e){w.x=e.clientX/window.innerWidth*2-1,w.y=-e.clientY/window.innerHeight*2+1}),window.addEventListener("mousedown",function(e){v=Boolean(1&e.buttons)}),window.addEventListener("mouseup",function(e){v=Boolean(1&e.buttons)}),window.addEventListener("contextmenu",function(e){e.preventDefault()}),window.addEventListener("wheel",function(e){var r=e.deltaY;1===e.deltaMode&&(r*=40),2===e.deltaMode&&(r*=40),M.size+=1e-4*r,M.size=Math.max(Math.min(M.size,.25),.025),x.updateDisplay()})}function E(e,r){var s=arguments.length>2&&void 0!==arguments[2]&&arguments[2],t=arguments.length>3&&void 0!==arguments[3]?arguments[3]:new Set,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:new Set,n=new l.Matrix4;n.copy(i.matrixWorld).invert();var u=new l.Sphere;u.center.copy(e).applyMatrix4(n),u.radius=M.size;var a=new Set,d=new l.Vector3,c=new l.Vector3,m=i.geometry.index,p=i.geometry.attributes.position,f=i.geometry.attributes.normal,q=new Set;i.geometry.boundsTree.shapecast(i,function(e){var r=u.intersectsBox(e),s=e.min,t=e.max;if(r){for(var o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var n=0;n<=1;n++)if(d.set(0===o?s.x:t.x,0===i?s.y:t.y,0===n?s.z:t.z),!u.containsPoint(d))return j.INTERSECTED;return j.CONTAINED}return r?j.INTERSECTED:j.NOT_INTERSECTED},function(e,r,s,i,n){var d=~~(r/3);q.add(d),t.add(d);var c=m.getX(r),l=m.getX(s),p=m.getX(i);return n?(a.add(c),a.add(l),a.add(p),o.add(c),o.add(l),o.add(p)):(u.containsPoint(e.a)&&(a.add(c),o.add(c)),u.containsPoint(e.b)&&(a.add(l),o.add(l)),u.containsPoint(e.c)&&(a.add(p),o.add(p))),!1});var y=new l.Vector3;y.copy(e).applyMatrix4(n);var g=new l.Vector3,w=0;if(a.forEach(function(e){d.fromBufferAttribute(f,e),c.add(d),s||(w++,d.fromBufferAttribute(p,e),g.add(d))}),c.normalize(),r.quaternion.setFromUnitVectors(h,c),w&&g.multiplyScalar(1/w),!s){var b=1e-4*M.intensity,v=new l.Plane;v.setFromNormalAndCoplanarPoint(c,g),a.forEach(function(e){d.fromBufferAttribute(p,e);var r=d.distanceTo(y),s=M.invert?-1:1,t=1-r/M.size;if("clay"===M.brush){t=Math.pow(t,3);var o=v.distanceToPoint(d),i=s*Math.min(4*t,1);d.addScaledVector(c,i*b-s*o*i*.3)}else if("normal"===M.brush)t=Math.pow(t,2),d.addScaledVector(c,s*t*b);else if("flatten"===M.brush){t=Math.pow(t,2);var n=v.distanceToPoint(d);d.addScaledVector(c,-n*t*M.intensity*.01*.5)}p.setXYZ(e,d.x,d.y,d.z),f.setXYZ(e,0,0,0)}),a.size&&(p.needsUpdate=!0)}}function P(e,r){var s=new l.Vector3,t=new l.Vector3,o=i.geometry.index,n=i.geometry.attributes.position,u=i.geometry.attributes.normal,a=new l.Triangle;e.forEach(function(e){var i=3*e,d=i+0,c=i+1,l=i+2,m=o.getX(d),p=o.getX(c),j=o.getX(l);a.a.fromBufferAttribute(n,m),a.b.fromBufferAttribute(n,p),a.c.fromBufferAttribute(n,j),a.getNormal(t),r.has(m)&&(s.fromBufferAttribute(u,m),s.add(t),u.setXYZ(m,s.x,s.y,s.z)),r.has(p)&&(s.fromBufferAttribute(u,p),s.add(t),u.setXYZ(p,s.x,s.y,s.z)),r.has(j)&&(s.fromBufferAttribute(u,j),s.add(t),u.setXYZ(j,s.x,s.y,s.z))}),r.forEach(function(e){s.fromBufferAttribute(u,e),s.normalize(),u.setXYZ(e,s.x,s.y,s.z)}),u.needsUpdate=!0}function V(){if(requestAnimationFrame(V),e.begin(),o.active)n.visible=!1,B.setScalar(1/0);else{var d=new l.Raycaster;d.setFromCamera(w,s),d.firstHitOnly=!0;var c=d.intersectObject(i,!0)[0];if(c)if(n.visible=!0,n.scale.set(M.size,M.size,.1),n.position.copy(c.point),u.visible=M.symmetrical,u.scale.set(M.size,M.size,.1),u.position.copy(c.point),u.position.x*=-1,o.enabled=!1,B.x===1/0&&B.copy(c.point),v||x){for(var m=(w.x-b.x)*window.innerWidth*window.devicePixelRatio,p=(w.y-b.y)*window.innerHeight*window.devicePixelRatio,j=Math.sqrt(m*m+p*p),f=c.point.distanceTo(B),q=.15*M.size,y=Math.max(q/f,1/M.maxSteps),g=j*y,h=0,z=new Set,S=new Set;f>q&&j>200*M.size/c.distance&&(b.lerp(w,y),B.lerp(c.point,y),f-=q,j-=g,E(B,n,!1,z,S),M.symmetrical&&(B.x*=-1,E(B,u,!1,z,S),B.x*=-1),!(++h>M.maxSteps)););h>0?(P(z,S),i.geometry.boundsTree.refit(),a.update()):(E(c.point,n,!0),M.symmetrical&&(c.point.x*=-1,E(c.point,u,!0),c.point.x*=-1))}else E(c.point,n,!0),M.symmetrical&&(c.point.x*=-1,E(c.point,u,!0),c.point.x*=-1),b.copy(w),B.copy(c.point);else o.enabled=!0,n.visible=!1,u.visible=!1,b.copy(w),B.setScalar(1/0)}x=v,t.render(r,s),e.end()}S(),V();
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diff --git a/example/bundle/selection.383a520f.js b/example/bundle/selection.383a520f.js
index 4b63e86ac..9a6dcbf92 100644
--- a/example/bundle/selection.383a520f.js
+++ b/example/bundle/selection.383a520f.js
@@ -14,7 +14,7 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var y=g(l,f,s,e,a,c);if(y===e||y===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=y-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=y,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),y(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,y=n.left,g=n.right,h=n.splitAxis;if((d=c(r+w,y))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,g),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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@@ -29,11 +29,13 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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n(r,f({},y,!0));if(u._roots=a,i){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==o&&(s.array.set(o),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(e){for(var t,n,i,o,a=e.index.array,u=e.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)t=s[l],n=new Uint32Array(t),i=new Uint16Array(t),o=new Float32Array(t),c(0);function c(e){var t=2*e;if(i[t+15]===r.IS_LEAFNODE_FLAG){for(var s=n[e+6],l=1/0,f=1/0,v=1/0,d=-1/0,y=-1/0,h=-1/0,p=3*s,g=3*(s+i[t+14]);p<g;p++){var b=3*a[p],x=u[b+0],m=u[b+1],B=u[b+2];x<l&&(l=x),x>d&&(d=x),m<f&&(f=m),m>y&&(y=m),B<v&&(v=B),B>h&&(h=B)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==d||o[e+4]!==y||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=d,o[e+4]=y,o[e+5]=h,!0)}var w=e+8,A=n[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var P=0;P<3;P++){var E=w+P,S=A+P,j=o[E],F=o[E+3],I=o[S],O=o[S+3];o[e+P]=j<I?j:I,o[e+P+3]=F>O?F:O}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),o=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=o[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=i[a+6],c=o[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,d=i[a+6],y=i[a+7],h=e(u,l,new Float32Array(n,4*a,6),y);h||(t(v,u+1),t(d,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,o=u(this._roots);try{for(o.s();!(i=o.n()).done;){var s=i.value;(0,a.setBuffer)(s),(0,a.raycast)(0,e,t,r,n)}}catch(l){o.e(l)}finally{o.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=null,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;(0,a.setBuffer)(s);var l=(0,a.raycastFirst)(0,e,t,r);null!=l&&(null==i||l.distance<i.distance)&&(i=l)}}catch(f){o.e(f)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR"}],"jNwr":[function(require,module,exports) {
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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+},{}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return 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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
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 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
diff --git a/example/bundle/shapecast.b93a7fe2.js b/example/bundle/shapecast.b93a7fe2.js
index f7c24de26..1821e5365 100644
--- a/example/bundle/shapecast.b93a7fe2.js
+++ b/example/bundle/shapecast.b93a7fe2.js
@@ -544,7 +544,7 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var y=g(l,f,s,e,a,c);if(y===e||y===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=y-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=y,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),y(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,y=n.left,g=n.right,h=n.splitAxis;if((d=c(r+w,y))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,g),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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n,i=!1,o=u(this._roots);try{for(o.s();!(n=o.n()).done;){var s=n.value;if((0,a.setBuffer)(s),i=(0,a.intersectsGeometry)(0,e,t,r))break}}catch(l){o.e(l)}finally{o.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,i){return i};var i,o=!1,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;if((0,a.setBuffer)(l),o=(0,a.shapecast)(0,e,t,r,n))break}}catch(f){s.e(f)}finally{s.f()}return(0,a.clearBuffer)(),o}},{key:"intersectsBox",value:function(e,t,r){return h.set(t.min,t.max,r),h.update(),this.shapecast(e,function(e){return h.intersectsBox(e)},function(e){return h.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),h.set(t.boundingBox.min,t.boundingBox.max,r),h.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=b),i&&(c=x);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,d=l.count;u<d;u+=3){(0,o.setTriangle)(g,u,l,s),g.a.applyMatrix4(r),g.b.applyMatrix4(r),g.c.applyMatrix4(r),g.sphere.setFromPoints(g.points);var y=g.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>v)){g.update();var h=e.distanceToTriangle(g,f,c);if(h<v&&(n&&n.copy(f),i&&i.copy(c),v=h),h<a)return!0}}return!1},function(e){return h.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,p);var i=t.distanceTo(p);return i<o&&(r&&r.copy(p),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=m;
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+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
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 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
diff --git a/umd/index.js b/umd/index.js
index 0ebb0fb63..413fb0c2e 100644
--- a/umd/index.js
+++ b/umd/index.js
@@ -696,21 +696,6 @@
 
 		}
 
-		// if the geometry doesn't have a bounding box, then let's politely populate it using
-		// the work we did to determine the BVH root bounds
-		if ( geo.boundingBox == null ) {
-
-			const rootBox = new three.Box3();
-			geo.boundingBox = new three.Box3();
-
-			for ( let root of roots ) {
-
-				geo.boundingBox.union( arrayToBox( root.boundingData, rootBox ) );
-
-			}
-
-		}
-
 		return roots;
 
 	}
@@ -2010,13 +1995,25 @@
 
 	}
 
+	function arrayToBox$1( nodeIndex32, array, target ) {
+
+		target.min.x = array[ nodeIndex32 ];
+		target.min.y = array[ nodeIndex32 + 1 ];
+		target.min.z = array[ nodeIndex32 + 2 ];
+
+		target.max.x = array[ nodeIndex32 + 3 ];
+		target.max.y = array[ nodeIndex32 + 4 ];
+		target.max.z = array[ nodeIndex32 + 5 ];
+
+	}
+
 	/* Generated from "castFunctions.template.js". Do not edit. */
 
 	const boundingBox = new three.Box3();
 	const boxIntersection = new three.Vector3();
 	const xyzFields$1 = [ 'x', 'y', 'z' ];
 
-	function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {
+	function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {
 
 		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -2026,21 +2023,21 @@
 			const offset = uint32Array[ nodeIndex32 + 6 ];
 			const count = uint16Array[ nodeIndex16 + 14 ];
 
-			intersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );
+			intersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );
 
 		} else {
 
 			const leftIndex = nodeIndex32 + 8;
 			if ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {
 
-				raycast( leftIndex, mesh, raycaster, ray, intersects );
+				raycast( leftIndex, mesh, geometry, raycaster, ray, intersects );
 
 			}
 
 			const rightIndex = uint32Array[ nodeIndex32 + 6 ];
 			if ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {
 
-				raycast( rightIndex, mesh, raycaster, ray, intersects );
+				raycast( rightIndex, mesh, geometry, raycaster, ray, intersects );
 
 			}
 
@@ -2048,7 +2045,7 @@
 
 	}
 
-	function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {
+	function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {
 
 		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
@@ -2057,7 +2054,7 @@
 
 			const offset = uint32Array[ nodeIndex32 + 6 ];
 			const count = uint16Array[ nodeIndex16 + 14 ];
-			return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );
+			return intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );
 
 		} else {
 
@@ -2083,7 +2080,7 @@
 			}
 
 			const c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );
-			const c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;
+			const c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;
 
 			// if we got an intersection in the first node and it's closer than the second node's bounding
 			// box, we don't need to consider the second node because it couldn't possibly be a better result
@@ -2106,7 +2103,7 @@
 			// either there was no intersection in the first node, or there could still be a closer
 			// intersection in the second, so check the second node and then take the better of the two
 			const c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );
-			const c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;
+			const c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;
 
 			if ( c1Result && c2Result ) {
 
@@ -2160,6 +2157,7 @@
 		return function shapecast(
 			nodeIndex32,
 			mesh,
+			geometry,
 			intersectsBoundsFunc,
 			intersectsTriangleFunc,
 			nodeScoreFunc = null,
@@ -2210,7 +2208,6 @@
 			const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 			if ( isLeaf ) {
 
-				const geometry = mesh.geometry;
 				const offset = uint32Array[ nodeIndex32 + 6 ];
 				const count = uint16Array[ nodeIndex16 + 14 ];
 				return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
@@ -2266,7 +2263,6 @@
 				let c1StopTraversal;
 				if ( c1Intersection === CONTAINED ) {
 
-					const geometry = mesh.geometry;
 					const offset = getLeftOffset( c1 );
 					const end = getRightEndOffset( c1 );
 					const count = end - offset;
@@ -2280,6 +2276,7 @@
 						shapecast(
 							c1,
 							mesh,
+							geometry,
 							intersectsBoundsFunc,
 							intersectsTriangleFunc,
 							nodeScoreFunc,
@@ -2318,6 +2315,7 @@
 						shapecast(
 							c2,
 							mesh,
+							geometry,
 							intersectsBoundsFunc,
 							intersectsTriangleFunc,
 							nodeScoreFunc,
@@ -2349,19 +2347,19 @@
 		const obb = new OrientedBox();
 		const obb2 = new OrientedBox();
 
-		return function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {
+		return function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {
 
 			let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 			if ( cachedObb === null ) {
 
-				if ( ! geometry.boundingBox ) {
+				if ( ! otherGeometry.boundingBox ) {
 
-					geometry.computeBoundingBox();
+					otherGeometry.computeBoundingBox();
 
 				}
 
-				obb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );
+				obb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );
 				obb.update();
 				cachedObb = obb;
 
@@ -2370,12 +2368,12 @@
 			const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 			if ( isLeaf ) {
 
-				const thisGeometry = mesh.geometry;
+				const thisGeometry = geometry;
 				const thisIndex = thisGeometry.index;
 				const thisPos = thisGeometry.attributes.position;
 
-				const index = geometry.index;
-				const pos = geometry.attributes.position;
+				const index = otherGeometry.index;
+				const pos = otherGeometry.attributes.position;
 
 				const offset = uint32Array[ nodeIndex32 + 6 ];
 				const count = uint16Array[ nodeIndex16 + 14 ];
@@ -2385,14 +2383,14 @@
 				// here.
 				invertedMat.copy( geometryToBvh ).invert();
 
-				if ( geometry.boundsTree ) {
+				if ( otherGeometry.boundsTree ) {
 
 					arrayToBox$1( nodeIndex32, float32Array, obb2 );
 					obb2.matrix.copy( invertedMat );
 					obb2.update();
 
-					cachedMesh.geometry = geometry;
-					const res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
+					cachedMesh.geometry = otherGeometry;
+					const res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
 
 						tri.a.applyMatrix4( geometryToBvh );
 						tri.b.applyMatrix4( geometryToBvh );
@@ -2455,14 +2453,14 @@
 				arrayToBox$1( left, float32Array, boundingBox );
 				const leftIntersection =
 					cachedObb.intersectsBox( boundingBox ) &&
-					intersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );
+					intersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
 
 				if ( leftIntersection ) return true;
 
 				arrayToBox$1( right, float32Array, boundingBox );
 				const rightIntersection =
 					cachedObb.intersectsBox( boundingBox ) &&
-					intersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );
+					intersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
 
 				if ( rightIntersection ) return true;
 
@@ -2516,18 +2514,6 @@
 
 	}
 
-	function arrayToBox$1( nodeIndex32, array, target ) {
-
-		target.min.x = array[ nodeIndex32 ];
-		target.min.y = array[ nodeIndex32 + 1 ];
-		target.min.z = array[ nodeIndex32 + 2 ];
-
-		target.max.x = array[ nodeIndex32 + 3 ];
-		target.max.y = array[ nodeIndex32 + 4 ];
-		target.max.z = array[ nodeIndex32 + 5 ];
-
-	}
-
 	const SKIP_GENERATION = Symbol( 'skip tree generation' );
 
 	const obb = new OrientedBox();
@@ -2535,6 +2521,7 @@
 	const tri2 = new SeparatingAxisTriangle();
 	const temp1 = new three.Vector3();
 	const temp2 = new three.Vector3();
+	const tempBox = new three.Box3();
 
 	class MeshBVH {
 
@@ -2578,17 +2565,17 @@
 
 		}
 
-		constructor( geo, options = {} ) {
+		constructor( geometry, options = {} ) {
 
-			if ( ! geo.isBufferGeometry ) {
+			if ( ! geometry.isBufferGeometry ) {
 
 				throw new Error( 'MeshBVH: Only BufferGeometries are supported.' );
 
-			} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {
+			} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {
 
 				throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );
 
-			} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {
+			} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {
 
 				throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );
 
@@ -2602,6 +2589,8 @@
 				maxLeafTris: 10,
 				verbose: true,
 
+				setBoundingBox: true,
+
 				// undocumented options
 
 				// Whether to skip generating the tree. Used for deserialization.
@@ -2613,14 +2602,25 @@
 			this._roots = null;
 			if ( ! options[ SKIP_GENERATION ] ) {
 
-				this._roots = buildPackedTree( geo, options );
+				this._roots = buildPackedTree( geometry, options );
+
+				if ( ! geometry.boundingBox && options.setBoundingBox ) {
+
+					geometry.boundingBox = this.getBoundingBox( new three.Box3() );
+
+				}
 
 			}
 
+			// retain references to the geometry so we can use them it without having to
+			// take a geometry reference in every function.
+			this.geometry = geometry;
+
 		}
 
-		refit( geometry ) {
+		refit() {
 
+			const geometry = this.geometry;
 			const indexArr = geometry.index.array;
 			const posArr = geometry.attributes.position.array;
 			let buffer, uint32Array, uint16Array, float32Array;
@@ -2769,10 +2769,11 @@
 		/* Core Cast Functions */
 		raycast( mesh, raycaster, ray, intersects ) {
 
+			const geometry = this.geometry;
 			for ( const root of this._roots ) {
 
 				setBuffer( root );
-				raycast( 0, mesh, raycaster, ray, intersects );
+				raycast( 0, mesh, geometry, raycaster, ray, intersects );
 
 			}
 
@@ -2782,11 +2783,12 @@
 
 		raycastFirst( mesh, raycaster, ray ) {
 
+			const geometry = this.geometry;
 			let closestResult = null;
 			for ( const root of this._roots ) {
 
 				setBuffer( root );
-				const result = raycastFirst( 0, mesh, raycaster, ray );
+				const result = raycastFirst( 0, mesh, geometry, raycaster, ray );
 
 				if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
 
@@ -2802,13 +2804,14 @@
 
 		}
 
-		intersectsGeometry( mesh, geometry, geomToMesh ) {
+		intersectsGeometry( mesh, otherGeometry, geomToMesh ) {
 
+			const geometry = this.geometry;
 			let result = false;
 			for ( const root of this._roots ) {
 
 				setBuffer( root );
-				result = intersectsGeometry( 0, mesh, geometry, geomToMesh );
+				result = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );
 
 				if ( result ) {
 
@@ -2829,11 +2832,12 @@
 			// default the triangle intersection function
 			intersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );
 
+			const geometry = this.geometry;
 			let result = false;
 			for ( const root of this._roots ) {
 
 				setBuffer( root );
-				result = shapecast( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
+				result = shapecast( 0, mesh, geometry, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
 
 				if ( result ) {
 
@@ -2873,19 +2877,19 @@
 
 		}
 
-		closestPointToGeometry( mesh, geom, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {
+		closestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {
 
-			if ( ! geom.boundingBox ) {
+			if ( ! otherGeometry.boundingBox ) {
 
-				geom.computeBoundingBox();
+				otherGeometry.computeBoundingBox();
 
 			}
 
-			obb.set( geom.boundingBox.min, geom.boundingBox.max, geometryToBvh );
+			obb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );
 			obb.update();
 
-			const pos = geom.attributes.position;
-			const index = geom.index;
+			const pos = otherGeometry.attributes.position;
+			const index = otherGeometry.index;
 
 			let tempTarget1 = null;
 			let tempTarget2 = null;
@@ -3029,6 +3033,22 @@
 
 		}
 
+		getBoundingBox( target ) {
+
+			target.makeEmpty();
+
+			const roots = this._roots;
+			roots.forEach( buffer => {
+
+				arrayToBox$1( 0, new Float32Array( buffer ), tempBox );
+				target.union( tempBox );
+
+			} );
+
+			return target;
+
+		}
+
 	}
 
 	const wiremat = new three.LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );
diff --git a/umd/index.js.map b/umd/index.js.map
index 1c6ad6c47..f0beb3e2b 100644
--- a/umd/index.js.map
+++ b/umd/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t// if the geometry doesn't have a bounding box, then let's politely populate it using\r\n\t// the work we did to determine the BVH root bounds\r\n\tif ( geo.boundingBox == null ) {\r\n\r\n\t\tconst rootBox = new Box3();\r\n\t\tgeo.boundingBox = new Box3();\r\n\r\n\t\tfor ( let root of roots ) {\r\n\r\n\t\t\tgeo.boundingBox.union( arrayToBox( root.boundingData, rootBox ) );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\r\nexport const closestPointLineToLine = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\r\n\tconst dir1 = new Vector3();\r\n\tconst dir2 = new Vector3();\r\n\tconst v02 = new Vector3();\r\n\treturn function closestPointLineToLine( l1, l2, result ) {\r\n\r\n\t\tconst v0 = l1.start;\r\n\t\tconst v10 = dir1;\r\n\t\tconst v2 = l2.start;\r\n\t\tconst v32 = dir2;\r\n\r\n\t\tv02.subVectors( v0, v2 );\r\n\t\tdir1.subVectors( l1.end, l2.start );\r\n\t\tdir2.subVectors( l2.end, l2.start );\r\n\r\n\t\t// float d0232 = v02.Dot(v32);\r\n\t\tconst d0232 = v02.dot( v32 );\r\n\r\n\t\t// float d3210 = v32.Dot(v10);\r\n\t\tconst d3210 = v32.dot( v10 );\r\n\r\n\t\t// float d3232 = v32.Dot(v32);\r\n\t\tconst d3232 = v32.dot( v32 );\r\n\r\n\t\t// float d0210 = v02.Dot(v10);\r\n\t\tconst d0210 = v02.dot( v10 );\r\n\r\n\t\t// float d1010 = v10.Dot(v10);\r\n\t\tconst d1010 = v10.dot( v10 );\r\n\r\n\t\t// float denom = d1010*d3232 - d3210*d3210;\r\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\r\n\r\n\t\tlet d, d2;\r\n\t\tif ( denom !== 0 ) {\r\n\r\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\r\n\r\n\t\t} else {\r\n\r\n\t\t\td = 0;\r\n\r\n\t\t}\r\n\r\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\r\n\r\n\t\tresult.x = d;\r\n\t\tresult.y = d2;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const closestPointsSegmentToSegment = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\r\n\tconst paramResult = new Vector2();\r\n\tconst temp1 = new Vector3();\r\n\tconst temp2 = new Vector3();\r\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\r\n\r\n\t\tclosestPointLineToLine( l1, l2, paramResult );\r\n\r\n\t\tlet d = paramResult.x;\r\n\t\tlet d2 = paramResult.y;\r\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\tl1.at( d, target1 );\r\n\t\t\tl2.at( d2, target2 );\r\n\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d >= 0 && d <= 1 ) {\r\n\r\n\t\t\t// Only d2 is out of bounds.\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tl2.at( 0, target2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl2.at( 1, target2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\t// Only d is out of bounds.\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tl1.at( 0, target1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl1.at( 1, target1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\r\n\t\t\treturn;\r\n\r\n\t\t} else {\r\n\r\n\t\t\t// Both u and u2 are out of bounds.\r\n\t\t\tlet p;\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tp = l1.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp = l1.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tlet p2;\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tp2 = l2.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp2 = l2.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst closestPoint = temp1;\r\n\t\t\tconst closestPoint2 = temp2;\r\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\r\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\r\n\r\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\r\n\r\n\t\t\t\ttarget1.copy( closestPoint );\r\n\t\t\t\ttarget2.copy( p2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\ttarget1.copy( p );\r\n\t\t\t\ttarget2.copy( closestPoint2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nexport const sphereIntersectTriangle = ( function () {\r\n\r\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\r\n\tconst closestPointTemp = new Vector3();\r\n\tconst projectedPointTemp = new Vector3();\r\n\tconst planeTemp = new Plane();\r\n\tconst lineTemp = new Line3();\r\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\r\n\r\n\t\tconst { radius, center } = sphere;\r\n\t\tconst { a, b, c } = triangle;\r\n\r\n\t\t// phase 1\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = b;\r\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = b;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\t// phase 2\r\n\t\tconst plane = triangle.getPlane( planeTemp );\r\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\r\n\t\tif ( dp <= radius ) {\r\n\r\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\r\n\t\t\tconst cp = triangle.containsPoint( pp );\r\n\t\t\tif ( cp ) return true;\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\r\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\r\n\r\nexport class OrientedBox extends Box3 {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isOrientedBox = true;\r\n\t\tthis.matrix = new Matrix4();\r\n\t\tthis.invMatrix = new Matrix4();\r\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\r\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.sphere = new Sphere();\r\n\r\n\t}\r\n\r\n\tset( min, max, matrix ) {\r\n\r\n\t\tsuper.set( min, max );\r\n\t\tthis.matrix = matrix;\r\n\r\n\t}\r\n\r\n\tcopy( other ) {\r\n\r\n\t\tsuper.copy( other );\r\n\t\tthis.matrix.copy( other.matrix );\r\n\r\n\t}\r\n\r\n}\r\n\r\nOrientedBox.prototype.update = ( function () {\r\n\r\n\treturn function update() {\r\n\r\n\t\tconst matrix = this.matrix;\r\n\t\tconst min = this.min;\r\n\t\tconst max = this.max;\r\n\r\n\t\tconst points = this.points;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\r\n\t\t\t\t\tconst v = points[ i ];\r\n\t\t\t\t\tv.x = x ? max.x : min.x;\r\n\t\t\t\t\tv.y = y ? max.y : min.y;\r\n\t\t\t\t\tv.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tv.applyMatrix4( matrix );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst minVec = points[ 0 ];\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst index = 1 << i;\r\n\t\t\tconst pi = points[ index ];\r\n\r\n\t\t\taxis.subVectors( minVec, pi );\r\n\t\t\tsb.setFromPoints( axis, points );\r\n\r\n\t\t}\r\n\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\r\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\r\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\r\n\r\n\t\tthis.invMatrix.copy( this.matrix ).invert();\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsBox = ( function () {\r\n\r\n\tconst aabbBounds = new SeparatingAxisBounds();\r\n\treturn function intersectsBox( box ) {\r\n\r\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\r\n\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\r\n\t\taabbBounds.min = min.x;\r\n\t\taabbBounds.max = max.x;\r\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.y;\r\n\t\taabbBounds.max = max.y;\r\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.z;\r\n\t\taabbBounds.max = max.z;\r\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\taabbBounds.setFromBox( axis, box );\r\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri = new SeparatingAxisTriangle();\r\n\tconst pointsArr = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( triangle ) {\r\n\r\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri.copy( triangle );\r\n\t\t\tsaTri.update();\r\n\t\t\ttriangle = saTri;\r\n\r\n\t\t} else if ( triangle.needsUpdate ) {\r\n\r\n\t\t\ttriangle.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\r\n\t\tpointsArr[ 0 ] = triangle.a;\r\n\t\tpointsArr[ 1 ] = triangle.b;\r\n\t\tpointsArr[ 2 ] = triangle.c;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst sa = satAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst triSatBounds = triangle.satBounds;\r\n\t\tconst triSatAxes = triangle.satAxes;\r\n\t\tconst points = this.points;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = triSatBounds[ i ];\r\n\t\t\tconst sa = triSatAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.closestPointToPoint = ( function () {\r\n\r\n\treturn function closestPointToPoint( point, target1 ) {\r\n\r\n\t\ttarget1\r\n\t\t\t.copy( point )\r\n\t\t\t.applyMatrix4( this.invMatrix )\r\n\t\t\t.clamp( this.min, this.max )\r\n\t\t\t.applyMatrix4( this.matrix );\r\n\r\n\t\treturn target1;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nOrientedBox.prototype.distanceToBox = ( function () {\r\n\r\n\tconst xyzFields = [ 'x', 'y', 'z' ];\r\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\r\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\r\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.intersectsBox( box ) ) {\r\n\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tbox.getCenter( point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tconst threshold2 = threshold * threshold;\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst points = this.points;\r\n\r\n\r\n\t\t// iterate over every edge and compare distances\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check over all these points\r\n\t\tfor ( let i = 0; i < 8; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tpoint2.copy( p ).clamp( min, max );\r\n\r\n\t\t\tconst dist = p.distanceToSquared( point2 );\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( p );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// generate and check all line segment distances\r\n\t\tlet count = 0;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\r\n\r\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\r\n\r\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\r\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\r\n\r\n\t\t\t\t\t// get obb line segments\r\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst p1 = points[ index ];\r\n\t\t\t\t\tconst p2 = points[ index2 ];\r\n\t\t\t\t\tconst line1 = segments1[ count ];\r\n\t\t\t\t\tline1.set( p1, p2 );\r\n\r\n\r\n\t\t\t\t\t// get aabb line segments\r\n\t\t\t\t\tconst f1 = xyzFields[ i ];\r\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\r\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\r\n\t\t\t\t\tconst line2 = segments2[ count ];\r\n\t\t\t\t\tconst start = line2.start;\r\n\t\t\t\t\tconst end = line2.end;\r\n\r\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\r\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\r\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tcount ++;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check all the other boxes point\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\r\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\r\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\r\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 12; i ++ ) {\r\n\r\n\t\t\tconst l1 = segments1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\r\n\r\n\t\t\t\tconst l2 = segments2[ i2 ];\r\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\r\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, mesh.geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, mesh.geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst geometry = mesh.geometry;\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! geometry.boundingBox ) {\r\n\r\n\t\t\t\tgeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = mesh.geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = geometry.index;\r\n\t\t\tconst pos = geometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( geometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = geometry;\r\n\t\t\t\tconst res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n","import { Vector3, BufferAttribute } from 'three';\r\nimport { CENTER } from './Constants.js';\r\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport {\r\n\traycast,\r\n\traycastFirst,\r\n\tshapecast,\r\n\tintersectsGeometry,\r\n\tsetBuffer,\r\n\tclearBuffer,\r\n} from './castFunctions.js';\r\n\r\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\r\n\r\nconst obb = new OrientedBox();\r\nconst temp = new Vector3();\r\nconst tri2 = new SeparatingAxisTriangle();\r\nconst temp1 = new Vector3();\r\nconst temp2 = new Vector3();\r\n\r\nexport default class MeshBVH {\r\n\r\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\r\n\r\n\t\tconst rootData = bvh._roots;\r\n\t\tconst indexAttribute = geometry.getIndex();\r\n\t\tconst result = {\r\n\t\t\troots: rootData,\r\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\r\n\t\t};\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tstatic deserialize( data, geometry, setIndex = true ) {\r\n\r\n\t\tconst { index, roots } = data;\r\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\r\n\t\tbvh._roots = roots;\r\n\r\n\t\tif ( setIndex ) {\r\n\r\n\t\t\tconst indexAttribute = geometry.getIndex();\r\n\t\t\tif ( indexAttribute === null ) {\r\n\r\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\r\n\t\t\t\tgeometry.setIndex( newIndex );\r\n\r\n\t\t\t} else if ( indexAttribute.array !== index ) {\r\n\r\n\t\t\t\tindexAttribute.array.set( index );\r\n\t\t\t\tindexAttribute.needsUpdate = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn bvh;\r\n\r\n\t}\r\n\r\n\tconstructor( geo, options = {} ) {\r\n\r\n\t\tif ( ! geo.isBufferGeometry ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\r\n\r\n\t\t} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\r\n\r\n\t\t} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\r\n\r\n\t\t}\r\n\r\n\t\t// default options\r\n\t\toptions = Object.assign( {\r\n\r\n\t\t\tstrategy: CENTER,\r\n\t\t\tmaxDepth: 40,\r\n\t\t\tmaxLeafTris: 10,\r\n\t\t\tverbose: true,\r\n\r\n\t\t\t// undocumented options\r\n\r\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\r\n\t\t\t[ SKIP_GENERATION ]: false\r\n\r\n\t\t}, options );\r\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\r\n\r\n\t\tthis._roots = null;\r\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\r\n\r\n\t\t\tthis._roots = buildPackedTree( geo, options );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\trefit( geometry ) {\r\n\r\n\t\tconst indexArr = geometry.index.array;\r\n\t\tconst posArr = geometry.attributes.position.array;\r\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\r\n\t\tconst roots = this._roots;\r\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\r\n\r\n\t\t\tbuffer = roots[ i ];\r\n\t\t\tuint32Array = new Uint32Array( buffer );\r\n\t\t\tuint16Array = new Uint16Array( buffer );\r\n\t\t\tfloat32Array = new Float32Array( buffer );\r\n\t\t\t_traverse( 0 );\r\n\r\n\t\t}\r\n\r\n\t\tfunction _traverse( node32Index ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\r\n\t\t\t\tlet minx = Infinity;\r\n\t\t\t\tlet miny = Infinity;\r\n\t\t\t\tlet minz = Infinity;\r\n\t\t\t\tlet maxx = - Infinity;\r\n\t\t\t\tlet maxy = - Infinity;\r\n\t\t\t\tlet maxz = - Infinity;\r\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\r\n\r\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\r\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\r\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\r\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\r\n\r\n\t\t\t\t\tif ( x < minx ) minx = x;\r\n\t\t\t\t\tif ( x > maxx ) maxx = x;\r\n\r\n\t\t\t\t\tif ( y < miny ) miny = y;\r\n\t\t\t\t\tif ( y > maxy ) maxy = y;\r\n\r\n\t\t\t\t\tif ( z < minz ) minz = z;\r\n\t\t\t\t\tif ( z > maxz ) maxz = z;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\r\n\t\t\t\t) {\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + 8;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\r\n\t\t\t\tconst leftChange = _traverse( left );\r\n\t\t\t\tconst rightChange = _traverse( right );\r\n\t\t\t\tconst didChange = leftChange || rightChange;\r\n\r\n\t\t\t\tif ( didChange ) {\r\n\r\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\t\tconst lefti = left + i;\r\n\t\t\t\t\t\tconst righti = right + i;\r\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\r\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\r\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\r\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\r\n\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn didChange;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\ttraverse( callback, rootIndex = 0 ) {\r\n\r\n\t\tconst buffer = this._roots[ rootIndex ];\r\n\t\tconst uint32Array = new Uint32Array( buffer );\r\n\t\tconst uint16Array = new Uint16Array( buffer );\r\n\t\t_traverse( 0 );\r\n\r\n\t\tfunction _traverse( node32Index, depth = 0 ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\r\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\r\n\r\n\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t_traverse( left, depth + 1 );\r\n\t\t\t\t\t_traverse( right, depth + 1 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t/* Core Cast Functions */\r\n\traycast( mesh, raycaster, ray, intersects ) {\r\n\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\traycast( 0, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t}\r\n\r\n\traycastFirst( mesh, raycaster, ray ) {\r\n\r\n\t\tlet closestResult = null;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tconst result = raycastFirst( 0, mesh, raycaster, ray );\r\n\r\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\r\n\r\n\t\t\t\tclosestResult = result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn closestResult;\r\n\r\n\t}\r\n\r\n\tintersectsGeometry( mesh, geometry, geomToMesh ) {\r\n\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, geomToMesh );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\r\n\r\n\t\t// default the triangle intersection function\r\n\t\tintersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );\r\n\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = shapecast( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\t/* Derived Cast Functions */\r\n\tintersectsBox( mesh, box, boxToMesh ) {\r\n\r\n\t\tobb.set( box.min, box.max, boxToMesh );\r\n\t\tobb.update();\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => obb.intersectsBox( box ),\r\n\t\t\ttri => obb.intersectsTriangle( tri )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tintersectsSphere( mesh, sphere ) {\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => sphere.intersectsBox( box ),\r\n\t\t\ttri => tri.intersectsSphere( sphere )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tclosestPointToGeometry( mesh, geom, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\tif ( ! geom.boundingBox ) {\r\n\r\n\t\t\tgeom.computeBoundingBox();\r\n\r\n\t\t}\r\n\r\n\t\tobb.set( geom.boundingBox.min, geom.boundingBox.max, geometryToBvh );\r\n\t\tobb.update();\r\n\r\n\t\tconst pos = geom.attributes.position;\r\n\t\tconst index = geom.index;\r\n\r\n\t\tlet tempTarget1 = null;\r\n\t\tlet tempTarget2 = null;\r\n\t\tif ( target1 ) {\r\n\r\n\t\t\ttempTarget1 = temp1;\r\n\r\n\t\t}\r\n\r\n\t\tif ( target2 ) {\r\n\r\n\t\t\ttempTarget2 = temp2;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\tif ( tri.needsUpdate ) {\r\n\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tconst sphere1 = tri.sphere;\r\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\r\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\r\n\r\n\t\t\t\t\tconst sphere2 = tri2.sphere;\r\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\r\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\r\n\r\n\t\t\t\t\t\tcontinue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\ttri2.update();\r\n\r\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\r\n\t\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\t\tif ( target1 ) {\r\n\r\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tif ( target2 ) {\r\n\r\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\r\n\t\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn false;\r\n\r\n\t\t\t},\r\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\t// early out if under minThreshold\r\n\t\t// skip checking if over maxThreshold\r\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\r\n\t\t// returns Infinity if no value found\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\ttri.closestPointToPoint( point, temp );\r\n\t\t\t\tconst dist = point.distanceTo( temp );\r\n\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\tif ( target ) {\r\n\r\n\t\t\t\t\t\ttarget.copy( temp );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t},\r\n\t\t\tbox => box.distanceToPoint( point )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n}\r\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, 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);\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix 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null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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+{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","export function arrayToBox( nodeIndex32, array, target ) {\n\n\ttarget.min.x = array[ nodeIndex32 ];\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\n\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\n\n}\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit() {\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\t\t\t_traverse( 0 );\n\n\t\t}\n\n\t\tfunction _traverse( node32Index ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\tconst leftChange = _traverse( left );\n\t\t\t\tconst rightChange = _traverse( right );\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\n\t\t}\n\n\t\tclearBuffer();\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\t\tclearBuffer();\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tclearBuffer();\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\n\n\t\t// default the triangle intersection function\n\t\tintersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tclearBuffer();\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\tbox => obb.intersectsBox( box ),\n\t\t\ttri => obb.intersectsTriangle( tri )\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\tbox => sphere.intersectsBox( box ),\n\t\t\ttri => tri.intersectsSphere( sphere )\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\n\t\t\ttri => {\n\n\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\ttri.update();\n\n\t\t\t\t}\n\n\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttri2.update();\n\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn false;\n\n\t\t\t},\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\n\t\t\ttri => {\n\n\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\tconst dist = point.distanceTo( temp );\n\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t}\n\n\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t},\n\t\t\tbox => box.distanceToPoint( point )\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file

From 3af4c2676cb36abe0a5a7e1f49918764ca7b2978 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 10:24:23 -0800
Subject: [PATCH 100/139] new shapecast signature

---
 src/MeshBVH.js | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 85a1fa23f..681cfa83f 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -327,17 +327,34 @@ export default class MeshBVH {
 
 	}
 
-	shapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {
+	shapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {
+
+		// TODO: update shapecast function to fire a range function
+		// TODO: update this function to use range callback from shapecast, calling both the intersects tri and range functions
+		// TODO: update all other shapecast calls
+
+		if ( callbacks instanceof Function ) {
+
+			callbacks = {
+
+				boundsTraverseOrder: _orderNodesFunc,
+				intersectsBounds: callbacks,
+				intersectsTriangle: _intersectsTriangleFunc,
+				intersectsRange: null,
+
+			};
+
+		}
 
 		// default the triangle intersection function
-		intersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );
+		const intersectsTriangleFunc = callbacks.intersectsTriangle || ( ( tri, a, b, c, contained ) => contained );
 
 		const geometry = this.geometry;
 		let result = false;
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			result = shapecast( 0, mesh, geometry, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
+			result = shapecast( 0, mesh, geometry, callbacks.intersectsBounds, intersectsTriangleFunc, callbacks.orderNodes );
 
 			if ( result ) {
 

From dac98906652e6a2409233a95d179cc282879b51f Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 19:25:34 -0800
Subject: [PATCH 101/139] Add callback object

---
 src/MeshBVH.js                | 207 ++++++++++++++++++++++++----------
 src/Utils/BufferNodeUtils.js  |  31 +++++
 src/castFunctions.template.js |  42 +------
 3 files changed, 183 insertions(+), 97 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 681cfa83f..683a7e6d5 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -12,7 +12,7 @@ import {
 	setBuffer,
 	clearBuffer,
 } from './castFunctions.js';
-import { arrayToBox } from './Utils/BufferNodeUtils.js';
+import { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';
 
 const SKIP_GENERATION = Symbol( 'skip tree generation' );
 
@@ -22,6 +22,7 @@ const tri2 = new SeparatingAxisTriangle();
 const temp1 = new Vector3();
 const temp2 = new Vector3();
 const tempBox = new Box3();
+const triangle = new SeparatingAxisTriangle();
 
 export default class MeshBVH {
 
@@ -329,12 +330,23 @@ export default class MeshBVH {
 
 	shapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {
 
-		// TODO: update shapecast function to fire a range function
-		// TODO: update this function to use range callback from shapecast, calling both the intersects tri and range functions
 		// TODO: update all other shapecast calls
 
+		const geometry = this.geometry;
 		if ( callbacks instanceof Function ) {
 
+			if ( _intersectsTriangleFunc ) {
+
+				const ogFunc = _intersectsTriangleFunc;
+				_intersectsTriangleFunc = ( offset, count, contained, depth ) => {
+
+					// TODO: if we update the arguments we need to do so here
+					return iterateOverTriangles( offset, count, geometry, ogFunc, contained, depth, triangle );
+
+				};
+
+			}
+
 			callbacks = {
 
 				boundsTraverseOrder: _orderNodesFunc,
@@ -346,15 +358,56 @@ export default class MeshBVH {
 
 		}
 
-		// default the triangle intersection function
-		const intersectsTriangleFunc = callbacks.intersectsTriangle || ( ( tri, a, b, c, contained ) => contained );
+		let {
+			boundsTraverseOrder,
+			intersectsBounds,
+			intersectsRange,
+			intersectsTriangle,
+		} = callbacks;
+
+		if ( intersectsRange && intersectsTriangle ) {
+
+			const originalIntersectsRange = intersectsRange;
+			intersectsRange = ( offset, count, contained, depth ) => {
+
+				if ( ! originalIntersectsRange( offset, count, contained, depth ) ) {
+
+					// TODO: iterate over triangles
+					return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
+
+				}
+
+				return true;
+
+			};
+
+		} else if ( ! intersectsRange ) {
+
+			if ( intersectsTriangle ) {
+
+				intersectsRange = ( offset, count, contained, depth ) => {
+
+					return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
+
+				};
+
+			} else {
+
+				intersectsRange = ( tri, a, b, c, contained ) => {
+
+					return contained;
+
+				};
+
+			}
+
+		}
 
-		const geometry = this.geometry;
 		let result = false;
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			result = shapecast( 0, mesh, geometry, callbacks.intersectsBounds, intersectsTriangleFunc, callbacks.orderNodes );
+			result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );
 
 			if ( result ) {
 
@@ -378,8 +431,10 @@ export default class MeshBVH {
 
 		return this.shapecast(
 			mesh,
-			box => obb.intersectsBox( box ),
-			tri => obb.intersectsTriangle( tri )
+			{
+				intersectsBounds: box => obb.intersectsBox( box ),
+				intersectsTriangle: tri => obb.intersectsTriangle( tri )
+			}
 		);
 
 	}
@@ -388,8 +443,10 @@ export default class MeshBVH {
 
 		return this.shapecast(
 			mesh,
-			box => sphere.intersectsBox( box ),
-			tri => tri.intersectsSphere( sphere )
+			{
+				intersectsBounds: box => sphere.intersectsBox( box ),
+				intersectsTriangle: tri => tri.intersectsSphere( sphere )
+			}
 		);
 
 	}
@@ -425,66 +482,80 @@ export default class MeshBVH {
 		let closestDistance = Infinity;
 		this.shapecast(
 			mesh,
-			( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,
-			tri => {
+			{
 
-				if ( tri.needsUpdate ) {
+				boundsTraverseOrder: box => {
 
-					tri.update();
+					return obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );
 
-				}
+				},
 
-				const sphere1 = tri.sphere;
-				for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
+				intersectsBounds: ( box, isLeaf, score ) => {
 
-					setTriangle( tri2, i2, index, pos );
-					tri2.a.applyMatrix4( geometryToBvh );
-					tri2.b.applyMatrix4( geometryToBvh );
-					tri2.c.applyMatrix4( geometryToBvh );
-					tri2.sphere.setFromPoints( tri2.points );
+					return score < closestDistance && score < maxThreshold;
 
-					const sphere2 = tri2.sphere;
-					const sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;
-					if ( sphereDist > closestDistance ) {
+				},
 
-						continue;
+				intersectsTriangle: tri => {
+
+					if ( tri.needsUpdate ) {
+
+						tri.update();
 
 					}
 
-					tri2.update();
+					const sphere1 = tri.sphere;
+					for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
 
-					const dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );
-					if ( dist < closestDistance ) {
+						setTriangle( tri2, i2, index, pos );
+						tri2.a.applyMatrix4( geometryToBvh );
+						tri2.b.applyMatrix4( geometryToBvh );
+						tri2.c.applyMatrix4( geometryToBvh );
+						tri2.sphere.setFromPoints( tri2.points );
 
-						if ( target1 ) {
+						const sphere2 = tri2.sphere;
+						const sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;
+						if ( sphereDist > closestDistance ) {
 
-							target1.copy( tempTarget1 );
+							continue;
 
 						}
 
-						if ( target2 ) {
+						tri2.update();
 
-							target2.copy( tempTarget2 );
+						const dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );
+						if ( dist < closestDistance ) {
 
-						}
+							if ( target1 ) {
 
-						closestDistance = dist;
+								target1.copy( tempTarget1 );
 
-					}
+							}
 
-					// stop traversal if we find a point that's under the given threshold
-					if ( dist < minThreshold ) {
+							if ( target2 ) {
 
-						return true;
+								target2.copy( tempTarget2 );
+
+							}
+
+							closestDistance = dist;
+
+						}
+
+						// stop traversal if we find a point that's under the given threshold
+						if ( dist < minThreshold ) {
+
+							return true;
+
+						}
 
 					}
 
-				}
+					return false;
 
-				return false;
+				}
 
-			},
-			box => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )
+			}
 
 		);
 
@@ -508,35 +579,49 @@ export default class MeshBVH {
 		this.shapecast(
 
 			mesh,
-			( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,
-			tri => {
+			{
 
-				tri.closestPointToPoint( point, temp );
-				const dist = point.distanceTo( temp );
-				if ( dist < closestDistance ) {
+				boundsTraverseOrder: box => {
 
-					if ( target ) {
+					return box.distanceToPoint( point );
 
-						target.copy( temp );
+				},
 
-					}
+				intersectsBounds: ( box, isLeaf, score ) => {
 
-					closestDistance = dist;
+					return score < closestDistance && score < maxThreshold;
 
-				}
+				},
 
-				if ( dist < minThreshold ) {
+				intersectsTriangle: tri => {
 
-					return true;
+					tri.closestPointToPoint( point, temp );
+					const dist = point.distanceTo( temp );
+					if ( dist < closestDistance ) {
 
-				} else {
+						if ( target ) {
 
-					return false;
+							target.copy( temp );
 
-				}
+						}
 
-			},
-			box => box.distanceToPoint( point )
+						closestDistance = dist;
+
+					}
+
+					if ( dist < minThreshold ) {
+
+						return true;
+
+					} else {
+
+						return false;
+
+					}
+
+				},
+
+			}
 
 		);
 
diff --git a/src/Utils/BufferNodeUtils.js b/src/Utils/BufferNodeUtils.js
index e85f8c4fd..0f3574c5e 100644
--- a/src/Utils/BufferNodeUtils.js
+++ b/src/Utils/BufferNodeUtils.js
@@ -1,3 +1,5 @@
+import { setTriangle } from './Utils/TriangleUtils.js';
+
 export function arrayToBox( nodeIndex32, array, target ) {
 
 	target.min.x = array[ nodeIndex32 ];
@@ -9,3 +11,32 @@ export function arrayToBox( nodeIndex32, array, target ) {
 	target.max.z = array[ nodeIndex32 + 5 ];
 
 }
+
+export function iterateOverTriangles(
+	offset,
+	count,
+	geometry,
+	intersectsTriangleFunc,
+	contained,
+	depth,
+	triangle
+) {
+
+	const index = geometry.index;
+	const pos = geometry.attributes.position;
+	for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+
+		setTriangle( triangle, i, index, pos );
+		triangle.needsUpdate = true;
+
+		if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
+
+			return true;
+
+		}
+
+	}
+
+	return false;
+
+}
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index c657184ca..abcc0c844 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -129,41 +129,12 @@ export const shapecast = ( function () {
 	const _cachedBox1 = new Box3();
 	const _cachedBox2 = new Box3();
 
-	function iterateOverTriangles(
-		offset,
-		count,
-		geometry,
-		intersectsTriangleFunc,
-		contained,
-		depth,
-		triangle
-	) {
-
-		const index = geometry.index;
-		const pos = geometry.attributes.position;
-		for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
-
-			setTriangle( triangle, i, index, pos );
-			triangle.needsUpdate = true;
-
-			if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
-
-				return true;
-
-			}
-
-		}
-
-		return false;
-
-	}
-
 	return function shapecast(
 		nodeIndex32,
 		mesh,
 		geometry,
 		intersectsBoundsFunc,
-		intersectsTriangleFunc,
+		intersectsRangeFunc,
 		nodeScoreFunc = null,
 		depth = 0,
 		triangle = _triangle,
@@ -214,7 +185,7 @@ export const shapecast = ( function () {
 
 			const offset = OFFSET( nodeIndex32 );
 			const count = COUNT( nodeIndex16 );
-			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
+			return intersectsRangeFunc( offset, count, false, depth );
 
 		} else {
 
@@ -271,7 +242,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
 
 			} else {
 
@@ -282,7 +253,7 @@ export const shapecast = ( function () {
 						mesh,
 						geometry,
 						intersectsBoundsFunc,
-						intersectsTriangleFunc,
+						intersectsRangeFunc,
 						nodeScoreFunc,
 						depth + 1,
 						triangle,
@@ -305,12 +276,11 @@ export const shapecast = ( function () {
 			let c2StopTraversal;
 			if ( c2Intersection === CONTAINED ) {
 
-				const geometry = mesh.geometry;
 				const offset = getLeftOffset( c2 );
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
 
 			} else {
 
@@ -321,7 +291,7 @@ export const shapecast = ( function () {
 						mesh,
 						geometry,
 						intersectsBoundsFunc,
-						intersectsTriangleFunc,
+						intersectsRangeFunc,
 						nodeScoreFunc,
 						depth + 1,
 						triangle,

From b618d1ff6332a4e9f7fbe5cf4a579ad6ff08d291 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 19:26:24 -0800
Subject: [PATCH 102/139] Enable testing

---
 .github/workflows/node.js.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index 9bc9b5d7d..a3de1c67d 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -7,7 +7,7 @@ on:
   push:
     branches: [ master ]
   pull_request:
-    branches: [ master ]
+    branches: [ master, dev-v0.4.0 ]
 
 jobs:
   build:

From 0b9cb2f42d8e5b2e5ca97e98510f69287ca70774 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 19:30:08 -0800
Subject: [PATCH 103/139] Update import

---
 src/Utils/BufferNodeUtils.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Utils/BufferNodeUtils.js b/src/Utils/BufferNodeUtils.js
index 0f3574c5e..c12a168ad 100644
--- a/src/Utils/BufferNodeUtils.js
+++ b/src/Utils/BufferNodeUtils.js
@@ -1,4 +1,4 @@
-import { setTriangle } from './Utils/TriangleUtils.js';
+import { setTriangle } from './TriangleUtils.js';
 
 export function arrayToBox( nodeIndex32, array, target ) {
 

From c47ca1a54613a9924d9f1de6c2ba5340684297e0 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 20:25:02 -0800
Subject: [PATCH 104/139] Remove sqrt calls from closest point to point

---
 src/MeshBVH.js | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 683a7e6d5..8521a1fcc 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -575,7 +575,9 @@ export default class MeshBVH {
 		// skip checking if over maxThreshold
 		// set minThreshold = maxThreshold to quickly check if a point is within a threshold
 		// returns Infinity if no value found
-		let closestDistance = Infinity;
+		const minThresholdSq = minThreshold * minThreshold;
+		const maxThresholdSq = maxThreshold * maxThreshold;
+		let closestDistanceSq = Infinity;
 		this.shapecast(
 
 			mesh,
@@ -583,21 +585,22 @@ export default class MeshBVH {
 
 				boundsTraverseOrder: box => {
 
-					return box.distanceToPoint( point );
+					temp.copy( point ).clamp( box.min, box.max );
+					return temp.distanceToSquared( point );
 
 				},
 
 				intersectsBounds: ( box, isLeaf, score ) => {
 
-					return score < closestDistance && score < maxThreshold;
+					return score < closestDistanceSq && score < maxThresholdSq;
 
 				},
 
 				intersectsTriangle: tri => {
 
 					tri.closestPointToPoint( point, temp );
-					const dist = point.distanceTo( temp );
-					if ( dist < closestDistance ) {
+					const distSq = point.distanceToSquared( temp );
+					if ( distSq < closestDistanceSq ) {
 
 						if ( target ) {
 
@@ -605,11 +608,11 @@ export default class MeshBVH {
 
 						}
 
-						closestDistance = dist;
+						closestDistanceSq = distSq;
 
 					}
 
-					if ( dist < minThreshold ) {
+					if ( distSq < minThresholdSq ) {
 
 						return true;
 
@@ -625,7 +628,7 @@ export default class MeshBVH {
 
 		);
 
-		return closestDistance;
+		return Math.sqrt( closestDistanceSq );
 
 	}
 

From a92d62aba71a3a03435dcb4280d11e0fc8f97aba Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 20:29:42 -0800
Subject: [PATCH 105/139] Fix bounds

---
 CHANGELOG.md   |  3 +++
 src/MeshBVH.js | 11 ++++-------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1119eab2c..8d630b569 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,11 +14,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Removed `src/worker/generateAsync.js` function. Use `GenerateMeshBVHWorker` instead.
 - Use `type: module` in package.json to enable use of es6 modules in node.
 - Remove ability to generate an unpacked BVH.
+- Improved "closestPointToPoint" performance slightly.
 
 ### Fixed
 - `MeshBVHVisualizer` not using the new geometry BVH if one was generated.
 - `MeshBVHVisualizer` not using the new mesh if it was set.
 - Case where passing in null `intersectsTriangleFunc` to `MeshBVH.shapecast` could throw an error.
+- Case where the buffer being raycast against was not cleared correctly if a BVH had multiple roots.
+
 
 ## [0.3.7] - 2021-03-06
 ### Fixed
diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 8521a1fcc..7c0765a3a 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -275,11 +275,10 @@ export default class MeshBVH {
 
 			setBuffer( root );
 			raycast( 0, mesh, geometry, raycaster, ray, intersects );
+			clearBuffer();
 
 		}
 
-		clearBuffer();
-
 	}
 
 	raycastFirst( mesh, raycaster, ray ) {
@@ -290,6 +289,7 @@ export default class MeshBVH {
 
 			setBuffer( root );
 			const result = raycastFirst( 0, mesh, geometry, raycaster, ray );
+			clearBuffer();
 
 			if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
 
@@ -299,7 +299,6 @@ export default class MeshBVH {
 
 		}
 
-		clearBuffer();
 
 		return closestResult;
 
@@ -313,6 +312,7 @@ export default class MeshBVH {
 
 			setBuffer( root );
 			result = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );
+			clearBuffer();
 
 			if ( result ) {
 
@@ -322,8 +322,6 @@ export default class MeshBVH {
 
 		}
 
-		clearBuffer();
-
 		return result;
 
 	}
@@ -408,6 +406,7 @@ export default class MeshBVH {
 
 			setBuffer( root );
 			result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );
+			clearBuffer();
 
 			if ( result ) {
 
@@ -417,8 +416,6 @@ export default class MeshBVH {
 
 		}
 
-		clearBuffer();
-
 		return result;
 
 	}

From d7ecd9bd6c389acd06d17a8f946e21ce2d4fed86 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 20:32:17 -0800
Subject: [PATCH 106/139] Update geometry intersect function

---
 src/castFunctions.template.js | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index abcc0c844..0ecef4276 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -364,27 +364,33 @@ export const intersectsGeometry = ( function () {
 				obb2.update();
 
 				cachedMesh.geometry = otherGeometry;
-				const res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
+				const res = otherGeometry.boundsTree.shapecast( cachedMesh, {
 
-					tri.a.applyMatrix4( geometryToBvh );
-					tri.b.applyMatrix4( geometryToBvh );
-					tri.c.applyMatrix4( geometryToBvh );
-					tri.update();
+					intersectsBounds: box => obb2.intersectsBox( box ),
 
-					for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+					intersectsTriangle: tri => {
 
-						// this triangle needs to be transformed into the current BVH coordinate frame
-						setTriangle( triangle2, i, thisIndex, thisPos );
-						triangle2.update();
-						if ( tri.intersectsTriangle( triangle2 ) ) {
+						tri.a.applyMatrix4( geometryToBvh );
+						tri.b.applyMatrix4( geometryToBvh );
+						tri.c.applyMatrix4( geometryToBvh );
+						tri.update();
 
-							return true;
+						for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+
+							// this triangle needs to be transformed into the current BVH coordinate frame
+							setTriangle( triangle2, i, thisIndex, thisPos );
+							triangle2.update();
+							if ( tri.intersectsTriangle( triangle2 ) ) {
+
+								return true;
+
+							}
 
 						}
 
-					}
+						return false;
 
-					return false;
+					}
 
 				} );
 				cachedMesh.geometry = null;

From c144c16d397241eb5d66cf7c1e8c1feaa7225873 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 20:47:24 -0800
Subject: [PATCH 107/139] Fix tests

---
 src/MeshBVH.js          | 11 +-----
 src/castFunctions.js    | 76 +++++++++++++++--------------------------
 test/ShapeCasts.test.js |  7 +---
 3 files changed, 29 insertions(+), 65 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 7c0765a3a..0f49c25b9 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -328,20 +328,12 @@ export default class MeshBVH {
 
 	shapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {
 
-		// TODO: update all other shapecast calls
-
 		const geometry = this.geometry;
 		if ( callbacks instanceof Function ) {
 
 			if ( _intersectsTriangleFunc ) {
 
-				const ogFunc = _intersectsTriangleFunc;
-				_intersectsTriangleFunc = ( offset, count, contained, depth ) => {
-
-					// TODO: if we update the arguments we need to do so here
-					return iterateOverTriangles( offset, count, geometry, ogFunc, contained, depth, triangle );
-
-				};
+				// TODO: if we update the arguments we need to do so here
 
 			}
 
@@ -370,7 +362,6 @@ export default class MeshBVH {
 
 				if ( ! originalIntersectsRange( offset, count, contained, depth ) ) {
 
-					// TODO: iterate over triangles
 					return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
 
 				}
diff --git a/src/castFunctions.js b/src/castFunctions.js
index 7785a59db..f5181b3dd 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -127,41 +127,12 @@ export const shapecast = ( function () {
 	const _cachedBox1 = new Box3();
 	const _cachedBox2 = new Box3();
 
-	function iterateOverTriangles(
-		offset,
-		count,
-		geometry,
-		intersectsTriangleFunc,
-		contained,
-		depth,
-		triangle
-	) {
-
-		const index = geometry.index;
-		const pos = geometry.attributes.position;
-		for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
-
-			setTriangle( triangle, i, index, pos );
-			triangle.needsUpdate = true;
-
-			if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
-
-				return true;
-
-			}
-
-		}
-
-		return false;
-
-	}
-
 	return function shapecast(
 		nodeIndex32,
 		mesh,
 		geometry,
 		intersectsBoundsFunc,
-		intersectsTriangleFunc,
+		intersectsRangeFunc,
 		nodeScoreFunc = null,
 		depth = 0,
 		triangle = _triangle,
@@ -212,7 +183,7 @@ export const shapecast = ( function () {
 
 			const offset = uint32Array[ nodeIndex32 + 6 ];
 			const count = uint16Array[ nodeIndex16 + 14 ];
-			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
+			return intersectsRangeFunc( offset, count, false, depth );
 
 		} else {
 
@@ -269,7 +240,8 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+				console.log('CONTAINED 1');
+				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
 
 			} else {
 
@@ -280,7 +252,7 @@ export const shapecast = ( function () {
 						mesh,
 						geometry,
 						intersectsBoundsFunc,
-						intersectsTriangleFunc,
+						intersectsRangeFunc,
 						nodeScoreFunc,
 						depth + 1,
 						triangle,
@@ -303,12 +275,12 @@ export const shapecast = ( function () {
 			let c2StopTraversal;
 			if ( c2Intersection === CONTAINED ) {
 
-				const geometry = mesh.geometry;
 				const offset = getLeftOffset( c2 );
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+				console.log('CONTAINED 2');
+				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
 
 			} else {
 
@@ -319,7 +291,7 @@ export const shapecast = ( function () {
 						mesh,
 						geometry,
 						intersectsBoundsFunc,
-						intersectsTriangleFunc,
+						intersectsRangeFunc,
 						nodeScoreFunc,
 						depth + 1,
 						triangle,
@@ -392,27 +364,33 @@ export const intersectsGeometry = ( function () {
 				obb2.update();
 
 				cachedMesh.geometry = otherGeometry;
-				const res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
+				const res = otherGeometry.boundsTree.shapecast( cachedMesh, {
 
-					tri.a.applyMatrix4( geometryToBvh );
-					tri.b.applyMatrix4( geometryToBvh );
-					tri.c.applyMatrix4( geometryToBvh );
-					tri.update();
+					intersectsBounds: box => obb2.intersectsBox( box ),
 
-					for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+					intersectsTriangle: tri => {
 
-						// this triangle needs to be transformed into the current BVH coordinate frame
-						setTriangle( triangle2, i, thisIndex, thisPos );
-						triangle2.update();
-						if ( tri.intersectsTriangle( triangle2 ) ) {
+						tri.a.applyMatrix4( geometryToBvh );
+						tri.b.applyMatrix4( geometryToBvh );
+						tri.c.applyMatrix4( geometryToBvh );
+						tri.update();
 
-							return true;
+						for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+
+							// this triangle needs to be transformed into the current BVH coordinate frame
+							setTriangle( triangle2, i, thisIndex, thisPos );
+							triangle2.update();
+							if ( tri.intersectsTriangle( triangle2 ) ) {
+
+								return true;
+
+							}
 
 						}
 
-					}
+						return false;
 
-					return false;
+					}
 
 				} );
 				cachedMesh.geometry = null;
diff --git a/test/ShapeCasts.test.js b/test/ShapeCasts.test.js
index 1cc9ac78d..87ba6a662 100644
--- a/test/ShapeCasts.test.js
+++ b/test/ShapeCasts.test.js
@@ -28,12 +28,7 @@ Mesh.prototype.raycast = acceleratedRaycast;
 BufferGeometry.prototype.computeBoundsTree = computeBoundsTree;
 BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
 
-describe( 'Shape Casts', () => {
-
-	describe( 'packed: false', () => runSuiteWithOptions( { packedData: false } ) );
-	describe( 'packed: true', () => runSuiteWithOptions( { packedData: true } ) );
-
-} );
+runSuiteWithOptions( {} );
 
 function runSuiteWithOptions( defaultOptions ) {
 

From 74742bf59d5929a2cb255986727c1655c4496348 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 20:52:58 -0800
Subject: [PATCH 108/139] fix cast functions

---
 src/castFunctions.js | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/castFunctions.js b/src/castFunctions.js
index f5181b3dd..e0b4519ff 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -240,7 +240,6 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				console.log('CONTAINED 1');
 				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
 
 			} else {
@@ -279,7 +278,6 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				console.log('CONTAINED 2');
 				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
 
 			} else {

From 9dc9013b79d1e969e914c7ecaeed760d6de21e76 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 21:18:50 -0800
Subject: [PATCH 109/139] README update, warning

---
 README.md      | 62 +++++++++++++++++++++++++++++++-------------------
 src/MeshBVH.js |  2 ++
 2 files changed, 41 insertions(+), 23 deletions(-)

diff --git a/README.md b/README.md
index b6a578d30..6ca6b756c 100644
--- a/README.md
+++ b/README.md
@@ -325,38 +325,54 @@ If a point is found that is closer than `minThreshold` then the function will re
 shapecast(
 	mesh : Mesh,
 
-	intersectsBoundsFunc : (
-		box : Box3,
-		isLeaf : Boolean,
-		score : Number | undefined,
-		depth : Number
-	) => NOT_INTERSECTED | INTERSECTED | CONTAINED,
-
-	intersectsTriangleFunc : (
-		triangle : Triangle,
-		index1 : Number,
-		index2 : Number,
-		index3 : Number,
-		contained : Boolean,
-		depth : Number
-	) => Boolean = null,
-
-	orderNodesFunc : (
-		box: Box3
-	) => Number = null
+	callbacks : {
+
+		traverseBoundsOrder : (
+			box: Box3
+		) => Number = null,
+
+		intersectsBounds : (
+			box : Box3,
+			isLeaf : Boolean,
+			score : Number | undefined,
+			depth : Number
+		) => NOT_INTERSECTED | INTERSECTED | CONTAINED,
+
+		intersectsRange : (
+			triangleOffset : Number,
+			triangleCount : Number
+			contained : Boolean,
+			depth : Number
+		) => Boolean = null,
+
+		intersectsTriangle : (
+			triangle : Triangle,
+			index1 : Number,
+			index2 : Number,
+			index3 : Number,
+			contained : Boolean,
+			depth : Number
+		) => Boolean = null,
+
+	}
 
 ) : Boolean
 ```
 
-A generalized cast function that can be used to implement intersection logic for custom shapes. This is used internally for [intersectsBox](#intersectsBox) and [intersectsSphere](#intersectsSphere). The function returns as soon as a triangle has been reported as intersected and returns `true` if a triangle has been intersected. The bounds are traversed in depth first order calling `orderNodesFunc`, `intersectsBoundsFunc` and `intersectsTrianglesFunc` for each node and using the results to determine traversal depth. The `depth` value passed to `intersectsBoundsFunc` and `intersectsTriangleFunc` indicates the depth of the bounds the provided box or bounds belongs to unless the triangles are indicated to be `CONTAINED`, in which case depth is the depth of the parent bounds that were contained. It can be used to precompute, cache, and then read information about a parent bound to improve performance while traversing.
+A generalized cast function that can be used to implement intersection logic for custom shapes. This is used internally for [intersectsBox](#intersectsBox) and [intersectsSphere](#intersectsSphere). The function returns as soon as a triangle has been reported as intersected and returns `true` if a triangle has been intersected. The bounds are traversed in depth first order calling `traverseBoundsOrder`, `intersectsBoundsFunc`, `intersectsRange`, and intersectsTriangle for each node and using the results to determine traversal depth. The `depth` value passed to callbacks indicates the depth of the bounds the provided box or bounds belongs to unless the triangles are indicated to be `CONTAINED`, in which case depth is the depth of the parent bounds that were contained. It can be used to precompute, cache, and then read information about a parent bound to improve performance while traversing.
 
 `mesh` is the is the object this BVH is representing.
 
-`intersectsBoundsFunc` takes the axis aligned bounding box representing an internal node local to the bvh, whether or not the node is a leaf, and the score calculated by `orderNodesFunc` and returns a constant indicating whether or not the bounds is intersected or contained and traversal should continue. If `CONTAINED` is returned then and optimization is triggered allowing all child triangles to be checked immediately rather than traversing the rest of the child bounds.
+`callbacks` is a list of callback functions (defined below) used for traversing the tree. All functions except for `intersectsBounds` are optional.
 
-`intersectsTriangleFunc` takes a triangle and the vertex indices used by the triangle from the geometry and returns whether or not the triangle has been intersected with. If the triangle is reported to be intersected the traversal ends and the `shapecast` function completes. If multiple triangles need to be collected or intersected return false here and push results onto an array. `contained` is set to `true` if one of the parent bounds was marked as entirely contained in the `intersectsBoundsFunc` function.
+`traverseBoundsOrder` takes the axis aligned bounding box representing an internal node local to the bvh and returns a score (often distance) used to determine whether the left or right node should be traversed first. The shape with the lowest score is traversed first.
+
+`intersectsBounds` takes the axis aligned bounding box representing an internal node local to the bvh, whether or not the node is a leaf, and the score calculated by `orderNodesFunc` and returns a constant indicating whether or not the bounds is intersected or contained meaning traversal should continue. If `CONTAINED` is returned then and optimization is triggered allowing the range and / or triangle intersection callbacks to be run immediately rather than traversing the rest of the child bounds.
+
+`intersectsRange` takes a triangle offset and count representing the number of triangles to be iterated over. 1 triangle from this range represents 3 values in the geometry's index buffer. If this function returns true then traversal is stopped and `intersectsTriangle` is not called if provided.
+
+`intersectsTriangle` takes a triangle and the index buffer indices used by the triangle from the geometry and returns whether or not the triangle has been intersected with. If the triangle is reported to be intersected the traversal ends and the `shapecast` function completes. If multiple triangles need to be collected or intersected return false here and push results onto an array. `contained` is set to `true` if one of the parent bounds was marked as entirely contained in the `intersectsBoundsFunc` function.
 
-`orderNodesFunc` takes the axis aligned bounding box representing an internal node local to the bvh and returns a score or distance representing the distance to the shape being intersected with. The shape with the lowest score is traversed first.
 
 ### .refit
 
diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 0f49c25b9..afb5b9c11 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -346,6 +346,8 @@ export default class MeshBVH {
 
 			};
 
+			console.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );
+
 		}
 
 		let {

From 00ea880858a1273471f94295dbd48ac513c449c7 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 21:20:47 -0800
Subject: [PATCH 110/139] Update tests

---
 test/ShapeCasts.test.js | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/test/ShapeCasts.test.js b/test/ShapeCasts.test.js
index 87ba6a662..9512b04da 100644
--- a/test/ShapeCasts.test.js
+++ b/test/ShapeCasts.test.js
@@ -109,12 +109,14 @@ function runSuiteWithOptions( defaultOptions ) {
 			let numContained = 0;
 			bvh.shapecast(
 				mesh,
-				getIntersectsBoxFunction( sphere ),
-				( tri, i0, i1, i2, contained ) => {
+				{
+					intersectsBounds: getIntersectsBoxFunction( sphere ),
+					intersectsTriangle: ( tri, i0, i1, i2, contained ) => {
 
-					allContained = contained && allContained;
-					numContained ++;
+						allContained = contained && allContained;
+						numContained ++;
 
+					}
 				}
 			);
 
@@ -133,16 +135,18 @@ function runSuiteWithOptions( defaultOptions ) {
 			let numContained = 0;
 			bvh.shapecast(
 				mesh,
-				getIntersectsBoxFunction( sphere ),
-				( tri, i0, i1, i2, contained ) => {
+				{
+					intersectsBounds: getIntersectsBoxFunction( sphere ),
+					intersectsTriangle: ( tri, i0, i1, i2, contained ) => {
 
-					allContained = contained && allContained;
-					if ( contained ) {
+						allContained = contained && allContained;
+						if ( contained ) {
 
-						numContained ++;
+							numContained ++;
 
-					}
+						}
 
+					}
 				}
 			);
 
@@ -160,11 +164,13 @@ function runSuiteWithOptions( defaultOptions ) {
 			let trianglesIterated = 0;
 			bvh.shapecast(
 				mesh,
-				getIntersectsBoxFunction( sphere ),
-				( tri, i0, i1, i2, contained ) => {
+				{
+					intersectsBounds: getIntersectsBoxFunction( sphere ),
+					intersectsTriangle: ( tri, i0, i1, i2, contained ) => {
 
-					trianglesIterated ++;
+						trianglesIterated ++;
 
+					}
 				}
 			);
 

From 0687d9705c418d6d8e82c3b13226b79ee70c3a0a Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 22:15:14 -0800
Subject: [PATCH 111/139] Update examples

---
 example/characterMovement.js |  25 ++--
 example/collectTriangles.js  |  51 ++++---
 example/physics.js           |  43 +++---
 example/sculpt.js            |  97 ++++++------
 example/selection.js         | 279 ++++++++++++++++++-----------------
 5 files changed, 260 insertions(+), 235 deletions(-)

diff --git a/example/characterMovement.js b/example/characterMovement.js
index 93c41605a..b07c6c6d4 100644
--- a/example/characterMovement.js
+++ b/example/characterMovement.js
@@ -380,20 +380,25 @@ function updatePlayer( delta ) {
 
 	collider.geometry.boundsTree.shapecast(
 		collider,
-		box => box.intersectsBox( tempBox ),
-		tri => {
+		{
 
-			const triPoint = tempVector;
-			const capsulePoint = tempVector2;
+			intersectsBounds: box => box.intersectsBox( tempBox ),
 
-			const distance = tri.closestPointToSegment( tempSegment, triPoint, capsulePoint );
-			if ( distance < capsuleInfo.radius ) {
+			intersectsTriangle: tri => {
 
-				const depth = capsuleInfo.radius - distance;
-				const direction = capsulePoint.sub( triPoint ).normalize();
+				const triPoint = tempVector;
+				const capsulePoint = tempVector2;
 
-				tempSegment.start.addScaledVector( direction, depth );
-				tempSegment.end.addScaledVector( direction, depth );
+				const distance = tri.closestPointToSegment( tempSegment, triPoint, capsulePoint );
+				if ( distance < capsuleInfo.radius ) {
+
+					const depth = capsuleInfo.radius - distance;
+					const direction = capsulePoint.sub( triPoint ).normalize();
+
+					tempSegment.start.addScaledVector( direction, depth );
+					tempSegment.end.addScaledVector( direction, depth );
+
+				}
 
 			}
 
diff --git a/example/collectTriangles.js b/example/collectTriangles.js
index 0936483df..6f93dc7b5 100644
--- a/example/collectTriangles.js
+++ b/example/collectTriangles.js
@@ -206,26 +206,30 @@ function render() {
 			const tempVec = new THREE.Vector3();
 			bvh.shapecast(
 				targetMesh,
-				box => {
+				{
 
-					const intersects = sphere.intersectsBox( box );
-					const { min, max } = box;
-					if ( intersects ) {
+					intersectsBounds: box => {
 
-						for ( let x = 0; x <= 1; x ++ ) {
+						const intersects = sphere.intersectsBox( box );
+						const { min, max } = box;
+						if ( intersects ) {
 
-							for ( let y = 0; y <= 1; y ++ ) {
+							for ( let x = 0; x <= 1; x ++ ) {
 
-								for ( let z = 0; z <= 1; z ++ ) {
+								for ( let y = 0; y <= 1; y ++ ) {
 
-									tempVec.set(
-										x === 0 ? min.x : max.x,
-										y === 0 ? min.y : max.y,
-										z === 0 ? min.z : max.z
-									);
-									if ( ! sphere.containsPoint( tempVec ) ) {
+									for ( let z = 0; z <= 1; z ++ ) {
 
-										return INTERSECTED;
+										tempVec.set(
+											x === 0 ? min.x : max.x,
+											y === 0 ? min.y : max.y,
+											z === 0 ? min.z : max.z
+										);
+										if ( ! sphere.containsPoint( tempVec ) ) {
+
+											return INTERSECTED;
+
+										}
 
 									}
 
@@ -233,24 +237,25 @@ function render() {
 
 							}
 
+							return CONTAINED;
+
 						}
 
-						return CONTAINED;
+						return intersects ? INTERSECTED : NOT_INTERSECTED;
 
-					}
+					},
 
-					return intersects ? INTERSECTED : NOT_INTERSECTED;
+					intersectsTriangle: ( tri, a, b, c, contained ) => {
 
-				},
-				( tri, a, b, c, contained ) => {
+						if ( contained || tri.intersectsSphere( sphere ) ) {
 
-					if ( contained || tri.intersectsSphere( sphere ) ) {
+							indices.push( a, b, c );
 
-						indices.push( a, b, c );
+						}
 
-					}
+						return false;
 
-					return false;
+					}
 
 				}
 			);
diff --git a/example/physics.js b/example/physics.js
index 4c31bd580..c128f50dd 100644
--- a/example/physics.js
+++ b/example/physics.js
@@ -329,33 +329,38 @@ function updateSphereCollisions( deltaTime ) {
 		let collided = false;
 		bvh.shapecast(
 			collider,
-			box => {
+			{
+				intersectsBounds: box => {
 
-				return box.intersectsSphere( tempSphere );
+					return box.intersectsSphere( tempSphere );
 
-			},
-			tri => {
+				},
 
-				// get delta between closest point and center
-				tri.closestPointToPoint( tempSphere.center, deltaVec );
-				deltaVec.sub( tempSphere.center );
-				const distance = deltaVec.length();
-				if ( distance < tempSphere.radius ) {
+				intersectsTriangle: tri => {
 
-					// move the sphere position to be outside the triangle
-					const radius = tempSphere.radius;
-					const depth = distance - radius;
-					deltaVec.multiplyScalar( 1 / distance );
-					tempSphere.center.addScaledVector( deltaVec, depth );
+					// get delta between closest point and center
+					tri.closestPointToPoint( tempSphere.center, deltaVec );
+					deltaVec.sub( tempSphere.center );
+					const distance = deltaVec.length();
+					if ( distance < tempSphere.radius ) {
 
-					collided = true;
+						// move the sphere position to be outside the triangle
+						const radius = tempSphere.radius;
+						const depth = distance - radius;
+						deltaVec.multiplyScalar( 1 / distance );
+						tempSphere.center.addScaledVector( deltaVec, depth );
 
-				}
+						collided = true;
+
+					}
+
+				},
+
+				traverseBoundsOrder: box => {
 
-			},
-			box => {
+					return box.distanceToPoint( tempSphere.center ) - tempSphere.radius;
 
-				return box.distanceToPoint( tempSphere.center ) - tempSphere.radius;
+				},
 
 			} );
 
diff --git a/example/sculpt.js b/example/sculpt.js
index 12903081c..7c311b5d8 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -293,26 +293,30 @@ function performStroke( point, brushObject, brushOnly = false, accumulatedTriang
 	const bvh = targetMesh.geometry.boundsTree;
 	bvh.shapecast(
 		targetMesh,
-		box => {
+		{
 
-			const intersects = sphere.intersectsBox( box );
-			const { min, max } = box;
-			if ( intersects ) {
+			intersectsBounds: box => {
 
-				for ( let x = 0; x <= 1; x ++ ) {
+				const intersects = sphere.intersectsBox( box );
+				const { min, max } = box;
+				if ( intersects ) {
 
-					for ( let y = 0; y <= 1; y ++ ) {
+					for ( let x = 0; x <= 1; x ++ ) {
 
-						for ( let z = 0; z <= 1; z ++ ) {
+						for ( let y = 0; y <= 1; y ++ ) {
 
-							tempVec.set(
-								x === 0 ? min.x : max.x,
-								y === 0 ? min.y : max.y,
-								z === 0 ? min.z : max.z
-							);
-							if ( ! sphere.containsPoint( tempVec ) ) {
+							for ( let z = 0; z <= 1; z ++ ) {
 
-								return INTERSECTED;
+								tempVec.set(
+									x === 0 ? min.x : max.x,
+									y === 0 ? min.y : max.y,
+									z === 0 ? min.z : max.z
+								);
+								if ( ! sphere.containsPoint( tempVec ) ) {
+
+									return INTERSECTED;
+
+								}
 
 							}
 
@@ -320,60 +324,61 @@ function performStroke( point, brushObject, brushOnly = false, accumulatedTriang
 
 					}
 
+					return CONTAINED;
+
 				}
 
-				return CONTAINED;
+				return intersects ? INTERSECTED : NOT_INTERSECTED;
 
-			}
+			},
 
-			return intersects ? INTERSECTED : NOT_INTERSECTED;
+			intersectsTriangle: ( tri, a, b, c, contained ) => {
 
-		},
-		( tri, a, b, c, contained ) => {
+				const triIndex = ~ ~ ( a / 3 );
+				triangles.add( triIndex );
+				accumulatedTriangles.add( triIndex );
 
-			const triIndex = ~ ~ ( a / 3 );
-			triangles.add( triIndex );
-			accumulatedTriangles.add( triIndex );
+				const va = indexAttr.getX( a );
+				const vb = indexAttr.getX( b );
+				const vc = indexAttr.getX( c );
+				if ( contained ) {
 
-			const va = indexAttr.getX( a );
-			const vb = indexAttr.getX( b );
-			const vc = indexAttr.getX( c );
-			if ( contained ) {
+					indices.add( va );
+					indices.add( vb );
+					indices.add( vc );
 
-				indices.add( va );
-				indices.add( vb );
-				indices.add( vc );
+					accumulatedIndices.add( va );
+					accumulatedIndices.add( vb );
+					accumulatedIndices.add( vc );
 
-				accumulatedIndices.add( va );
-				accumulatedIndices.add( vb );
-				accumulatedIndices.add( vc );
+				} else {
 
-			} else {
+					if ( sphere.containsPoint( tri.a ) ) {
 
-				if ( sphere.containsPoint( tri.a ) ) {
+						indices.add( va );
+						accumulatedIndices.add( va );
 
-					indices.add( va );
-					accumulatedIndices.add( va );
+					}
 
-				}
+					if ( sphere.containsPoint( tri.b ) ) {
 
-				if ( sphere.containsPoint( tri.b ) ) {
+						indices.add( vb );
+						accumulatedIndices.add( vb );
 
-					indices.add( vb );
-					accumulatedIndices.add( vb );
+					}
 
-				}
+					if ( sphere.containsPoint( tri.c ) ) {
 
-				if ( sphere.containsPoint( tri.c ) ) {
+						indices.add( vc );
+						accumulatedIndices.add( vc );
 
-					indices.add( vc );
-					accumulatedIndices.add( vc );
+					}
 
 				}
 
-			}
+				return false;
 
-			return false;
+			}
 
 		}
 	);
diff --git a/example/selection.js b/example/selection.js
index a2c02dc5b..dcea10dbc 100644
--- a/example/selection.js
+++ b/example/selection.js
@@ -448,216 +448,220 @@ function updateSelection() {
 	const indices = [];
 	mesh.geometry.boundsTree.shapecast(
 		mesh,
-		( box, isLeaf, score, depth ) => {
+		{
+			intersectsBounds: ( box, isLeaf, score, depth ) => {
 
-			// check if bounds intersect or contain the lasso region
-			if ( ! params.useBoundsTree ) {
+				// check if bounds intersect or contain the lasso region
+				if ( ! params.useBoundsTree ) {
 
-				return INTERSECTED;
+					return INTERSECTED;
 
-			}
+				}
 
-			// Get the bounding box points
-			const { min, max } = box;
-			let index = 0;
+				// Get the bounding box points
+				const { min, max } = box;
+				let index = 0;
 
-			let minY = Infinity;
-			let maxY = - Infinity;
-			let minX = Infinity;
-			for ( let x = 0; x <= 1; x ++ ) {
+				let minY = Infinity;
+				let maxY = - Infinity;
+				let minX = Infinity;
+				for ( let x = 0; x <= 1; x ++ ) {
 
-				for ( let y = 0; y <= 1; y ++ ) {
+					for ( let y = 0; y <= 1; y ++ ) {
 
-					for ( let z = 0; z <= 1; z ++ ) {
+						for ( let z = 0; z <= 1; z ++ ) {
 
-						const v = boxPoints[ index ];
-						v.x = x === 0 ? min.x : max.x;
-						v.y = y === 0 ? min.y : max.y;
-						v.z = z === 0 ? min.z : max.z;
-						v.w = 1;
-						v.applyMatrix4( toScreenSpaceMatrix );
-						index ++;
+							const v = boxPoints[ index ];
+							v.x = x === 0 ? min.x : max.x;
+							v.y = y === 0 ? min.y : max.y;
+							v.z = z === 0 ? min.z : max.z;
+							v.w = 1;
+							v.applyMatrix4( toScreenSpaceMatrix );
+							index ++;
 
-						if ( v.y < minY ) minY = v.y;
-						if ( v.y > maxY ) maxY = v.y;
-						if ( v.x < minX ) minX = v.x;
+							if ( v.y < minY ) minY = v.y;
+							if ( v.y > maxY ) maxY = v.y;
+							if ( v.x < minX ) minX = v.x;
+
+						}
 
 					}
 
 				}
 
-			}
+				// Find all the relevant segments here and cache them in the above array for
+				// subsequent child checks to use.
+				const parentSegments = perBoundsSegments[ depth - 1 ] || lassoSegments;
+				const segmentsToCheck = perBoundsSegments[ depth ] || [];
+				segmentsToCheck.length = 0;
+				perBoundsSegments[ depth ] = segmentsToCheck;
+				for ( let i = 0, l = parentSegments.length; i < l; i ++ ) {
 
-			// Find all the relevant segments here and cache them in the above array for
-			// subsequent child checks to use.
-			const parentSegments = perBoundsSegments[ depth - 1 ] || lassoSegments;
-			const segmentsToCheck = perBoundsSegments[ depth ] || [];
-			segmentsToCheck.length = 0;
-			perBoundsSegments[ depth ] = segmentsToCheck;
-			for ( let i = 0, l = parentSegments.length; i < l; i ++ ) {
+					const line = parentSegments[ i ];
+					const sx = line.start.x;
+					const sy = line.start.y;
+					const ex = line.end.x;
+					const ey = line.end.y;
+					if ( sx < minX && ex < minX ) continue;
 
-				const line = parentSegments[ i ];
-				const sx = line.start.x;
-				const sy = line.start.y;
-				const ex = line.end.x;
-				const ey = line.end.y;
-				if ( sx < minX && ex < minX ) continue;
+					const startAbove = sy > maxY;
+					const endAbove = ey > maxY;
+					if ( startAbove && endAbove ) continue;
 
-				const startAbove = sy > maxY;
-				const endAbove = ey > maxY;
-				if ( startAbove && endAbove ) continue;
+					const startBelow = sy < minY;
+					const endBelow = ey < minY;
+					if ( startBelow && endBelow ) continue;
 
-				const startBelow = sy < minY;
-				const endBelow = ey < minY;
-				if ( startBelow && endBelow ) continue;
+					segmentsToCheck.push( line );
 
-				segmentsToCheck.push( line );
+				}
 
-			}
+				if ( segmentsToCheck.length === 0 ) {
 
-			if ( segmentsToCheck.length === 0 ) {
+					return NOT_INTERSECTED;
 
-				return NOT_INTERSECTED;
+				}
 
-			}
+				// Get the screen space hull lines
+				const hull = getConvexHull( boxPoints );
+				const lines = hull.map( ( p, i ) => {
 
-			// Get the screen space hull lines
-			const hull = getConvexHull( boxPoints );
-			const lines = hull.map( ( p, i ) => {
+					const nextP = hull[ ( i + 1 ) % hull.length ];
+					const line = boxLines[ i ];
+					line.start.copy( p );
+					line.end.copy( nextP );
+					return line;
 
-				const nextP = hull[ ( i + 1 ) % hull.length ];
-				const line = boxLines[ i ];
-				line.start.copy( p );
-				line.end.copy( nextP );
-				return line;
+				} );
 
-			} );
+				// If a lasso point is inside the hull then it's intersected and cannot be contained
+				if ( pointRayCrossesSegments( segmentsToCheck[ 0 ].start, lines ) % 2 === 1 ) {
 
-			// If a lasso point is inside the hull then it's intersected and cannot be contained
-			if ( pointRayCrossesSegments( segmentsToCheck[ 0 ].start, lines ) % 2 === 1 ) {
+					return INTERSECTED;
 
-				return INTERSECTED;
+				}
 
-			}
+				// check if the screen space hull is in the lasso
+				let crossings = 0;
+				for ( let i = 0, l = hull.length; i < l; i ++ ) {
 
-			// check if the screen space hull is in the lasso
-			let crossings = 0;
-			for ( let i = 0, l = hull.length; i < l; i ++ ) {
+					const v = hull[ i ];
+					const pCrossings = pointRayCrossesSegments( v, segmentsToCheck );
 
-				const v = hull[ i ];
-				const pCrossings = pointRayCrossesSegments( v, segmentsToCheck );
+					if ( i === 0 ) {
 
-				if ( i === 0 ) {
+						crossings = pCrossings;
 
-					crossings = pCrossings;
+					}
 
-				}
+					// if two points on the hull have different amounts of crossings then
+					// it can only be intersected
+					if ( crossings !== pCrossings ) {
 
-				// if two points on the hull have different amounts of crossings then
-				// it can only be intersected
-				if ( crossings !== pCrossings ) {
+						return INTERSECTED;
 
-					return INTERSECTED;
+					}
 
 				}
 
-			}
+				// check if there are any intersections
+				for ( let i = 0, l = lines.length; i < l; i ++ ) {
 
-			// check if there are any intersections
-			for ( let i = 0, l = lines.length; i < l; i ++ ) {
+					const boxLine = lines[ i ];
+					for ( let s = 0, ls = segmentsToCheck.length; s < ls; s ++ ) {
 
-				const boxLine = lines[ i ];
-				for ( let s = 0, ls = segmentsToCheck.length; s < ls; s ++ ) {
+						if ( lineCrossesLine( boxLine, segmentsToCheck[ s ] ) ) {
 
-					if ( lineCrossesLine( boxLine, segmentsToCheck[ s ] ) ) {
+							return INTERSECTED;
 
-						return INTERSECTED;
+						}
 
 					}
 
 				}
 
-			}
+				return crossings % 2 === 0 ? NOT_INTERSECTED : CONTAINED;
 
-			return crossings % 2 === 0 ? NOT_INTERSECTED : CONTAINED;
+			},
 
-		},
-		( tri, a, b, c, contained, depth ) => {
+			intersectsTriangle: ( tri, a, b, c, contained, depth ) => {
 
-			// if the parent bounds were marked as contained
-			if ( contained ) {
+				// if the parent bounds were marked as contained
+				if ( contained ) {
 
-				indices.push( a, b, c );
-				return params.selectModel;
+					indices.push( a, b, c );
+					return params.selectModel;
 
-			}
+				}
 
-			// check all the segments if using no bounds tree
-			const segmentsToCheck = params.useBoundsTree ? perBoundsSegments[ depth ] : lassoSegments;
-			if ( params.selectionMode === 'centroid' ) {
+				// check all the segments if using no bounds tree
+				const segmentsToCheck = params.useBoundsTree ? perBoundsSegments[ depth ] : lassoSegments;
+				if ( params.selectionMode === 'centroid' ) {
 
-				// get the center of the triangle
-				const centroid = tri.a.add( tri.b ).add( tri.c ).multiplyScalar( 1 / 3 );
-				centroid.applyMatrix4( toScreenSpaceMatrix );
+					// get the center of the triangle
+					const centroid = tri.a.add( tri.b ).add( tri.c ).multiplyScalar( 1 / 3 );
+					centroid.applyMatrix4( toScreenSpaceMatrix );
 
-				// counting the crossings
-				const crossings = pointRayCrossesSegments( centroid, segmentsToCheck );
-				if ( crossings % 2 === 1 ) {
+					// counting the crossings
+					const crossings = pointRayCrossesSegments( centroid, segmentsToCheck );
+					if ( crossings % 2 === 1 ) {
 
-					indices.push( a, b, c );
-					return params.selectModel;
+						indices.push( a, b, c );
+						return params.selectModel;
 
-				}
+					}
 
-			} else if ( params.selectionMode === 'intersection' ) {
+				} else if ( params.selectionMode === 'intersection' ) {
 
-				// get the projected vertices
-				const vertices = [
-					tri.a,
-					tri.b,
-					tri.c,
-				];
+					// get the projected vertices
+					const vertices = [
+						tri.a,
+						tri.b,
+						tri.c,
+					];
 
-				for ( let j = 0; j < 3; j ++ ) {
+					for ( let j = 0; j < 3; j ++ ) {
 
-					const v = vertices[ j ];
-					v.applyMatrix4( toScreenSpaceMatrix );
+						const v = vertices[ j ];
+						v.applyMatrix4( toScreenSpaceMatrix );
 
-					const crossings = pointRayCrossesSegments( v, segmentsToCheck );
-					if ( crossings % 2 === 1 ) {
+						const crossings = pointRayCrossesSegments( v, segmentsToCheck );
+						if ( crossings % 2 === 1 ) {
 
-						indices.push( a, b, c );
-						return params.selectModel;
+							indices.push( a, b, c );
+							return params.selectModel;
+
+						}
 
 					}
 
-				}
+					// get the lines for the triangle
+					const lines = [
+						boxLines[ 0 ],
+						boxLines[ 1 ],
+						boxLines[ 2 ],
+					];
 
-				// get the lines for the triangle
-				const lines = [
-					boxLines[ 0 ],
-					boxLines[ 1 ],
-					boxLines[ 2 ],
-				];
+					lines[ 0 ].start.copy( tri.a );
+					lines[ 0 ].end.copy( tri.b );
 
-				lines[ 0 ].start.copy( tri.a );
-				lines[ 0 ].end.copy( tri.b );
+					lines[ 1 ].start.copy( tri.b );
+					lines[ 1 ].end.copy( tri.c );
 
-				lines[ 1 ].start.copy( tri.b );
-				lines[ 1 ].end.copy( tri.c );
+					lines[ 2 ].start.copy( tri.c );
+					lines[ 2 ].end.copy( tri.a );
 
-				lines[ 2 ].start.copy( tri.c );
-				lines[ 2 ].end.copy( tri.a );
+					for ( let i = 0; i < 3; i ++ ) {
 
-				for ( let i = 0; i < 3; i ++ ) {
+						const l = lines[ i ];
+						for ( let s = 0, sl = segmentsToCheck.length; s < sl; s ++ ) {
 
-					const l = lines[ i ];
-					for ( let s = 0, sl = segmentsToCheck.length; s < sl; s ++ ) {
+							if ( lineCrossesLine( l, segmentsToCheck[ s ] ) ) {
 
-						if ( lineCrossesLine( l, segmentsToCheck[ s ] ) ) {
+								indices.push( a, b, c );
+								return params.selectModel;
 
-							indices.push( a, b, c );
-							return params.selectModel;
+							}
 
 						}
 
@@ -665,11 +669,12 @@ function updateSelection() {
 
 				}
 
-			}
+				return false;
 
-			return false;
+			}
 
 		}
+
 	);
 
 	const traverseTime = window.performance.now() - startTime;

From 5e567fad4f36c53b7c0cf972112305a28ec68c90 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 23:15:26 -0800
Subject: [PATCH 112/139] enable touch

---
 example/collectTriangles.js | 61 +++++++++++++++++++++++++------------
 1 file changed, 41 insertions(+), 20 deletions(-)

diff --git a/example/collectTriangles.js b/example/collectTriangles.js
index 0936483df..20659201f 100644
--- a/example/collectTriangles.js
+++ b/example/collectTriangles.js
@@ -18,7 +18,7 @@ let stats;
 let scene, camera, renderer, controls;
 let targetMesh, brushMesh;
 let mouse = new THREE.Vector2();
-let mouseType = - 1;
+let mouseType = - 1, brushActive = false;
 let lastTime;
 
 function init() {
@@ -32,6 +32,7 @@ function init() {
 	renderer.setClearColor( bgColor, 1 );
 	renderer.gammaOutput = true;
 	document.body.appendChild( renderer.domElement );
+	renderer.domElement.style.touchAction = 'none';
 
 	// scene setup
 	scene = new THREE.Scene();
@@ -81,7 +82,6 @@ function init() {
 	camera.far = 100;
 	camera.updateProjectionMatrix();
 
-	controls = new OrbitControls( camera, renderer.domElement );
 
 	// stats setup
 	stats = new Stats();
@@ -92,18 +92,6 @@ function init() {
 	gui.add( params, 'rotate' );
 	gui.open();
 
-	controls.addEventListener( 'start', function () {
-
-		this.active = true;
-
-	} );
-
-	controls.addEventListener( 'end', function () {
-
-		this.active = false;
-
-	} );
-
 	window.addEventListener( 'resize', function () {
 
 		camera.aspect = window.innerWidth / window.innerHeight;
@@ -113,24 +101,43 @@ function init() {
 
 	}, false );
 
-	window.addEventListener( 'mousemove', function ( e ) {
+	window.addEventListener( 'pointermove', function ( e ) {
 
 		mouse.x = ( e.clientX / window.innerWidth ) * 2 - 1;
 		mouse.y = - ( e.clientY / window.innerHeight ) * 2 + 1;
 
 	} );
 
-	window.addEventListener( 'mousedown', function ( e ) {
+	window.addEventListener( 'pointerdown', function ( e ) {
 
+		mouse.x = ( e.clientX / window.innerWidth ) * 2 - 1;
+		mouse.y = - ( e.clientY / window.innerHeight ) * 2 + 1;
 		mouseType = e.button;
 
-	} );
+		// disable the controls early if we're over the object because on touch screens
+		// we're not constantly tracking where the cursor is.
+		const raycaster = new THREE.Raycaster();
+		raycaster.setFromCamera( mouse, camera );
+		raycaster.firstHitOnly = true;
+
+		const res = raycaster.intersectObject( targetMesh, true );
+		brushActive = true;
+		controls.enabled = res.length === 0;
+
+	}, true );
 
-	window.addEventListener( 'mouseup', function () {
+	window.addEventListener( 'pointerup', function ( e ) {
 
 		mouseType = - 1;
+		if ( e.pointerType === 'touch' ) {
 
-	} );
+			// disable the brush visualization when the pointer action is done only
+			// if it's on a touch device.
+			brushActive = false;
+
+		}
+
+	}, true );
 
 	window.addEventListener( 'contextmenu', function ( e ) {
 
@@ -161,6 +168,20 @@ function init() {
 
 	} );
 
+	controls = new OrbitControls( camera, renderer.domElement );
+
+	controls.addEventListener( 'start', function () {
+
+		this.active = true;
+
+	} );
+
+	controls.addEventListener( 'end', function () {
+
+		this.active = false;
+
+	} );
+
 	lastTime = window.performance.now();
 
 }
@@ -176,7 +197,7 @@ function render() {
 	const colorAttr = geometry.getAttribute( 'color' );
 	const indexAttr = geometry.index;
 
-	if ( controls.active ) {
+	if ( controls.active || ! brushActive ) {
 
 		brushMesh.visible = false;
 

From a8d0142ec7b8681f60d74dec504442d3b02acc96 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 23:21:18 -0800
Subject: [PATCH 113/139] Enable touch support for sculpt example

---
 example/sculpt.js | 58 +++++++++++++++++++++++++++++++----------------
 1 file changed, 38 insertions(+), 20 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 12903081c..4817969e3 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -22,6 +22,7 @@ let stats;
 let scene, camera, renderer, controls;
 let targetMesh, brush, symmetryBrush, bvhHelper;
 let normalZ = new THREE.Vector3( 0, 0, 1 );
+let brushActive = false;
 let mouse = new THREE.Vector2(), lastMouse = new THREE.Vector2();
 let mouseState = false, lastMouseState = false;
 let lastCastPose = new THREE.Vector3();
@@ -107,6 +108,7 @@ function init() {
 	renderer.setClearColor( bgColor, 1 );
 	renderer.gammaOutput = true;
 	document.body.appendChild( renderer.domElement );
+	renderer.domElement.style.touchAction = 'none';
 
 	// scene setup
 	scene = new THREE.Scene();
@@ -152,9 +154,6 @@ function init() {
 	camera.far = 100;
 	camera.updateProjectionMatrix();
 
-	controls = new OrbitControls( camera, renderer.domElement );
-	controls.minDistance = 1.5;
-
 	// stats setup
 	stats = new Stats();
 	document.body.appendChild( stats.dom );
@@ -201,18 +200,6 @@ function init() {
 	} }, 'rebuildBVH' );
 	gui.open();
 
-	controls.addEventListener( 'start', function () {
-
-		this.active = true;
-
-	} );
-
-	controls.addEventListener( 'end', function () {
-
-		this.active = false;
-
-	} );
-
 	window.addEventListener( 'resize', function () {
 
 		camera.aspect = window.innerWidth / window.innerHeight;
@@ -222,22 +209,37 @@ function init() {
 
 	}, false );
 
-	window.addEventListener( 'mousemove', function ( e ) {
+	window.addEventListener( 'pointermove', function ( e ) {
 
 		mouse.x = ( e.clientX / window.innerWidth ) * 2 - 1;
 		mouse.y = - ( e.clientY / window.innerHeight ) * 2 + 1;
 
 	} );
 
-	window.addEventListener( 'mousedown', e => {
+	window.addEventListener( 'pointerdown', e => {
 
+		mouse.x = ( e.clientX / window.innerWidth ) * 2 - 1;
+		mouse.y = - ( e.clientY / window.innerHeight ) * 2 + 1;
 		mouseState = Boolean( e.buttons & 1 );
+		brushActive = true;
 
-	} );
+		const raycaster = new THREE.Raycaster();
+		raycaster.setFromCamera( mouse, camera );
+		raycaster.firstHitOnly = true;
 
-	window.addEventListener( 'mouseup', e => {
+		const res = raycaster.intersectObject( targetMesh );
+		controls.enabled = res.length === 0;
+
+	}, true );
+
+	window.addEventListener( 'pointerup', e => {
 
 		mouseState = Boolean( e.buttons & 1 );
+		if ( e.pointerType === 'touch' ) {
+
+			brushActive = false;
+
+		}
 
 	} );
 
@@ -270,6 +272,21 @@ function init() {
 
 	} );
 
+	controls = new OrbitControls( camera, renderer.domElement );
+	controls.minDistance = 1.5;
+
+	controls.addEventListener( 'start', function () {
+
+		this.active = true;
+
+	} );
+
+	controls.addEventListener( 'end', function () {
+
+		this.active = false;
+
+	} );
+
 }
 
 // Run the perform the brush movement
@@ -537,10 +554,11 @@ function render() {
 
 	stats.begin();
 
-	if ( controls.active ) {
+	if ( controls.active || ! brushActive ) {
 
 		// If the controls are being used then don't perform the strokes
 		brush.visible = false;
+		symmetryBrush.visible = false;
 		lastCastPose.setScalar( Infinity );
 
 	} else {

From 5e5d12805cf409cb2fc11d7a9852cc7ea5ac1a91 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 23:23:00 -0800
Subject: [PATCH 114/139] build update

---
 example/bundle/collectTriangles.9c45819a.js | 2 +-
 example/bundle/sculpt.493e9c78.js           | 2 +-
 umd/index.js.map                            | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/example/bundle/collectTriangles.9c45819a.js b/example/bundle/collectTriangles.9c45819a.js
index e2d95da05..8133adea0 100644
--- a/example/bundle/collectTriangles.9c45819a.js
+++ b/example/bundle/collectTriangles.9c45819a.js
@@ -569,5 +569,5 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
 },{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"hyUn":[function(require,module,exports) {
-"use strict";require("core-js/modules/es6.array.copy-within"),require("core-js/modules/es6.array.fill"),require("core-js/modules/es6.array.find"),require("core-js/modules/es6.array.find-index"),require("core-js/modules/es7.array.flat-map"),require("core-js/modules/es6.array.from"),require("core-js/modules/es7.array.includes"),require("core-js/modules/es6.array.iterator"),require("core-js/modules/es6.array.of"),require("core-js/modules/es6.array.sort"),require("core-js/modules/es6.array.species"),require("core-js/modules/es6.date.to-json"),require("core-js/modules/es6.date.to-primitive"),require("core-js/modules/es6.function.has-instance"),require("core-js/modules/es6.function.name"),require("core-js/modules/es6.map"),require("core-js/modules/es6.math.acosh"),require("core-js/modules/es6.math.asinh"),require("core-js/modules/es6.math.atanh"),require("core-js/modules/es6.math.cbrt"),require("core-js/modules/es6.math.clz32"),require("core-js/modules/es6.math.cosh"),require("core-js/modules/es6.math.expm1"),require("core-js/modules/es6.math.fround"),require("core-js/modules/es6.math.hypot"),require("core-js/modules/es6.math.imul"),require("core-js/modules/es6.math.log1p"),require("core-js/modules/es6.math.log10"),require("core-js/modules/es6.math.log2"),require("core-js/modules/es6.math.sign"),require("core-js/modules/es6.math.sinh"),require("core-js/modules/es6.math.tanh"),require("core-js/modules/es6.math.trunc"),require("core-js/modules/es6.number.constructor"),require("core-js/modules/es6.number.epsilon"),require("core-js/modules/es6.number.is-finite"),require("core-js/modules/es6.number.is-integer"),require("core-js/modules/es6.number.is-nan"),require("core-js/modules/es6.number.is-safe-integer"),require("core-js/modules/es6.number.max-safe-integer"),require("core-js/modules/es6.number.min-safe-integer"),require("core-js/modules/es6.number.parse-float"),require("core-js/modules/es6.number.parse-int"),require("core-js/modules/es6.object.assign"),require("core-js/modules/es7.object.define-getter"),require("core-js/modules/es7.object.define-setter"),require("core-js/modules/es7.object.entries"),require("core-js/modules/es6.object.freeze"),require("core-js/modules/es6.object.get-own-property-descriptor"),require("core-js/modules/es7.object.get-own-property-descriptors"),require("core-js/modules/es6.object.get-own-property-names"),require("core-js/modules/es6.object.get-prototype-of"),require("core-js/modules/es7.object.lookup-getter"),require("core-js/modules/es7.object.lookup-setter"),require("core-js/modules/es6.object.prevent-extensions"),require("core-js/modules/es6.object.to-string"),require("core-js/modules/es6.object.is"),require("core-js/modules/es6.object.is-frozen"),require("core-js/modules/es6.object.is-sealed"),require("core-js/modules/es6.object.is-extensible"),require("core-js/modules/es6.object.keys"),require("core-js/modules/es6.object.seal"),require("core-js/modules/es6.object.set-prototype-of"),require("core-js/modules/es7.object.values"),require("core-js/modules/es6.promise"),require("core-js/modules/es7.promise.finally"),require("core-js/modules/es6.reflect.apply"),require("core-js/modules/es6.reflect.construct"),require("core-js/modules/es6.reflect.define-property"),require("core-js/modules/es6.reflect.delete-property"),require("core-js/modules/es6.reflect.get"),require("core-js/modules/es6.reflect.get-own-property-descriptor"),require("core-js/modules/es6.reflect.get-prototype-of"),require("core-js/modules/es6.reflect.has"),require("core-js/modules/es6.reflect.is-extensible"),require("core-js/modules/es6.reflect.own-keys"),require("core-js/modules/es6.reflect.prevent-extensions"),require("core-js/modules/es6.reflect.set"),require("core-js/modules/es6.reflect.set-prototype-of"),require("core-js/modules/es6.regexp.constructor"),require("core-js/modules/es6.regexp.flags"),require("core-js/modules/es6.regexp.match"),require("core-js/modules/es6.regexp.replace"),require("core-js/modules/es6.regexp.split"),require("core-js/modules/es6.regexp.search"),require("core-js/modules/es6.regexp.to-string"),require("core-js/modules/es6.set"),require("core-js/modules/es6.symbol"),require("core-js/modules/es7.symbol.async-iterator"),require("core-js/modules/es6.string.anchor"),require("core-js/modules/es6.string.big"),require("core-js/modules/es6.string.blink"),require("core-js/modules/es6.string.bold"),require("core-js/modules/es6.string.code-point-at"),require("core-js/modules/es6.string.ends-with"),require("core-js/modules/es6.string.fixed"),require("core-js/modules/es6.string.fontcolor"),require("core-js/modules/es6.string.fontsize"),require("core-js/modules/es6.string.from-code-point"),require("core-js/modules/es6.string.includes"),require("core-js/modules/es6.string.italics"),require("core-js/modules/es6.string.iterator"),require("core-js/modules/es6.string.link"),require("core-js/modules/es7.string.pad-start"),require("core-js/modules/es7.string.pad-end"),require("core-js/modules/es6.string.raw"),require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null)
\ No newline at end of file
diff --git a/example/bundle/sculpt.493e9c78.js b/example/bundle/sculpt.493e9c78.js
index e6c3369fd..ac3cab2e7 100644
--- a/example/bundle/sculpt.493e9c78.js
+++ b/example/bundle/sculpt.493e9c78.js
@@ -571,5 +571,5 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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r=e.deltaY;1===e.deltaMode&&(r*=40),2===e.deltaMode&&(r*=40),M.size+=1e-4*r,M.size=Math.max(Math.min(M.size,.25),.025),x.updateDisplay()})}function E(e,r){var s=arguments.length>2&&void 0!==arguments[2]&&arguments[2],t=arguments.length>3&&void 0!==arguments[3]?arguments[3]:new Set,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:new Set,n=new l.Matrix4;n.copy(i.matrixWorld).invert();var u=new l.Sphere;u.center.copy(e).applyMatrix4(n),u.radius=M.size;var a=new Set,d=new l.Vector3,c=new l.Vector3,m=i.geometry.index,p=i.geometry.attributes.position,f=i.geometry.attributes.normal,q=new Set;i.geometry.boundsTree.shapecast(i,function(e){var r=u.intersectsBox(e),s=e.min,t=e.max;if(r){for(var o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var n=0;n<=1;n++)if(d.set(0===o?s.x:t.x,0===i?s.y:t.y,0===n?s.z:t.z),!u.containsPoint(d))return j.INTERSECTED;return j.CONTAINED}return r?j.INTERSECTED:j.NOT_INTERSECTED},function(e,r,s,i,n){var d=~~(r/3);q.add(d),t.add(d);var c=m.getX(r),l=m.getX(s),p=m.getX(i);return n?(a.add(c),a.add(l),a.add(p),o.add(c),o.add(l),o.add(p)):(u.containsPoint(e.a)&&(a.add(c),o.add(c)),u.containsPoint(e.b)&&(a.add(l),o.add(l)),u.containsPoint(e.c)&&(a.add(p),o.add(p))),!1});var y=new l.Vector3;y.copy(e).applyMatrix4(n);var g=new l.Vector3,w=0;if(a.forEach(function(e){d.fromBufferAttribute(f,e),c.add(d),s||(w++,d.fromBufferAttribute(p,e),g.add(d))}),c.normalize(),r.quaternion.setFromUnitVectors(h,c),w&&g.multiplyScalar(1/w),!s){var b=1e-4*M.intensity,v=new l.Plane;v.setFromNormalAndCoplanarPoint(c,g),a.forEach(function(e){d.fromBufferAttribute(p,e);var r=d.distanceTo(y),s=M.invert?-1:1,t=1-r/M.size;if("clay"===M.brush){t=Math.pow(t,3);var o=v.distanceToPoint(d),i=s*Math.min(4*t,1);d.addScaledVector(c,i*b-s*o*i*.3)}else if("normal"===M.brush)t=Math.pow(t,2),d.addScaledVector(c,s*t*b);else if("flatten"===M.brush){t=Math.pow(t,2);var n=v.distanceToPoint(d);d.addScaledVector(c,-n*t*M.intensity*.01*.5)}p.setXYZ(e,d.x,d.y,d.z),f.setXYZ(e,0,0,0)}),a.size&&(p.needsUpdate=!0)}}function P(e,r){var s=new l.Vector3,t=new l.Vector3,o=i.geometry.index,n=i.geometry.attributes.position,u=i.geometry.attributes.normal,a=new l.Triangle;e.forEach(function(e){var i=3*e,d=i+0,c=i+1,l=i+2,m=o.getX(d),p=o.getX(c),j=o.getX(l);a.a.fromBufferAttribute(n,m),a.b.fromBufferAttribute(n,p),a.c.fromBufferAttribute(n,j),a.getNormal(t),r.has(m)&&(s.fromBufferAttribute(u,m),s.add(t),u.setXYZ(m,s.x,s.y,s.z)),r.has(p)&&(s.fromBufferAttribute(u,p),s.add(t),u.setXYZ(p,s.x,s.y,s.z)),r.has(j)&&(s.fromBufferAttribute(u,j),s.add(t),u.setXYZ(j,s.x,s.y,s.z))}),r.forEach(function(e){s.fromBufferAttribute(u,e),s.normalize(),u.setXYZ(e,s.x,s.y,s.z)}),u.needsUpdate=!0}function V(){if(requestAnimationFrame(V),e.begin(),o.active)n.visible=!1,B.setScalar(1/0);else{var d=new l.Raycaster;d.setFromCamera(w,s),d.firstHitOnly=!0;var c=d.intersectObject(i,!0)[0];if(c)if(n.visible=!0,n.scale.set(M.size,M.size,.1),n.position.copy(c.point),u.visible=M.symmetrical,u.scale.set(M.size,M.size,.1),u.position.copy(c.point),u.position.x*=-1,o.enabled=!1,B.x===1/0&&B.copy(c.point),v||x){for(var m=(w.x-b.x)*window.innerWidth*window.devicePixelRatio,p=(w.y-b.y)*window.innerHeight*window.devicePixelRatio,j=Math.sqrt(m*m+p*p),f=c.point.distanceTo(B),q=.15*M.size,y=Math.max(q/f,1/M.maxSteps),g=j*y,h=0,z=new Set,S=new Set;f>q&&j>200*M.size/c.distance&&(b.lerp(w,y),B.lerp(c.point,y),f-=q,j-=g,E(B,n,!1,z,S),M.symmetrical&&(B.x*=-1,E(B,u,!1,z,S),B.x*=-1),!(++h>M.maxSteps)););h>0?(P(z,S),i.geometry.boundsTree.refit(),a.update()):(E(c.point,n,!0),M.symmetrical&&(c.point.x*=-1,E(c.point,u,!0),c.point.x*=-1))}else E(c.point,n,!0),M.symmetrical&&(c.point.x*=-1,E(c.point,u,!0),c.point.x*=-1),b.copy(w),B.copy(c.point);else o.enabled=!0,n.visible=!1,u.visible=!1,b.copy(w),B.setScalar(1/0)}x=v,t.render(r,s),e.end()}S(),V();
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strict";require("core-js/modules/es6.array.copy-within"),require("core-js/modules/es6.array.fill"),require("core-js/modules/es6.array.find"),require("core-js/modules/es6.array.find-index"),require("core-js/modules/es7.array.flat-map"),require("core-js/modules/es6.array.from"),require("core-js/modules/es7.array.includes"),require("core-js/modules/es6.array.iterator"),require("core-js/modules/es6.array.of"),require("core-js/modules/es6.array.sort"),require("core-js/modules/es6.array.species"),require("core-js/modules/es6.date.to-json"),require("core-js/modules/es6.date.to-primitive"),require("core-js/modules/es6.function.has-instance"),require("core-js/modules/es6.function.name"),require("core-js/modules/es6.map"),require("core-js/modules/es6.math.acosh"),require("core-js/modules/es6.math.asinh"),require("core-js/modules/es6.math.atanh"),require("core-js/modules/es6.math.cbrt"),require("core-js/modules/es6.math.clz32"),require("core-js/modules/es6.math.cosh"),require("core-js/modules/es6.math.expm1"),require("core-js/modules/es6.math.fround"),require("core-js/modules/es6.math.hypot"),require("core-js/modules/es6.math.imul"),require("core-js/modules/es6.math.log1p"),require("core-js/modules/es6.math.log10"),require("core-js/modules/es6.math.log2"),require("core-js/modules/es6.math.sign"),require("core-js/modules/es6.math.sinh"),require("core-js/modules/es6.math.tanh"),require("core-js/modules/es6.math.trunc"),require("core-js/modules/es6.number.constructor"),require("core-js/modules/es6.number.epsilon"),require("core-js/modules/es6.number.is-finite"),require("core-js/modules/es6.number.is-integer"),require("core-js/modules/es6.number.is-nan"),require("core-js/modules/es6.number.is-safe-integer"),require("core-js/modules/es6.number.max-safe-integer"),require("core-js/modules/es6.number.min-safe-integer"),require("core-js/modules/es6.number.parse-float"),require("core-js/modules/es6.number.parse-int"),require("core-js/modules/es6.object.assign"),require("core-js/modules/es7.object.define-getter"),require("core-js/modules/es7.object.define-setter"),require("core-js/modules/es7.object.entries"),require("core-js/modules/es6.object.freeze"),require("core-js/modules/es6.object.get-own-property-descriptor"),require("core-js/modules/es7.object.get-own-property-descriptors"),require("core-js/modules/es6.object.get-own-property-names"),require("core-js/modules/es6.object.get-prototype-of"),require("core-js/modules/es7.object.lookup-getter"),require("core-js/modules/es7.object.lookup-setter"),require("core-js/modules/es6.object.prevent-extensions"),require("core-js/modules/es6.object.to-string"),require("core-js/modules/es6.object.is"),require("core-js/modules/es6.object.is-frozen"),require("core-js/modules/es6.object.is-sealed"),require("core-js/modules/es6.object.is-extensible"),require("core-js/modules/es6.object.keys"),require("core-js/modules/es6.object.seal"),require("core-js/modules/es6.object.set-prototype-of"),require("core-js/modules/es7.object.values"),require("core-js/modules/es6.promise"),require("core-js/modules/es7.promise.finally"),require("core-js/modules/es6.reflect.apply"),require("core-js/modules/es6.reflect.construct"),require("core-js/modules/es6.reflect.define-property"),require("core-js/modules/es6.reflect.delete-property"),require("core-js/modules/es6.reflect.get"),require("core-js/modules/es6.reflect.get-own-property-descriptor"),require("core-js/modules/es6.reflect.get-prototype-of"),require("core-js/modules/es6.reflect.has"),require("core-js/modules/es6.reflect.is-extensible"),require("core-js/modules/es6.reflect.own-keys"),require("core-js/modules/es6.reflect.prevent-extensions"),require("core-js/modules/es6.reflect.set"),require("core-js/modules/es6.reflect.set-prototype-of"),require("core-js/modules/es6.regexp.constructor"),require("core-js/modules/es6.regexp.flags"),require("core-js/modules/es6.regexp.match"),require("core-js/modules/es6.regexp.replace"),require("core-js/modules/es6.regexp.split"),require("core-js/modules/es6.regexp.search"),require("core-js/modules/es6.regexp.to-string"),require("core-js/modules/es6.set"),require("core-js/modules/es6.symbol"),require("core-js/modules/es7.symbol.async-iterator"),require("core-js/modules/es6.string.anchor"),require("core-js/modules/es6.string.big"),require("core-js/modules/es6.string.blink"),require("core-js/modules/es6.string.bold"),require("core-js/modules/es6.string.code-point-at"),require("core-js/modules/es6.string.ends-with"),require("core-js/modules/es6.string.fixed"),require("core-js/modules/es6.string.fontcolor"),require("core-js/modules/es6.string.fontsize"),require("core-js/modules/es6.string.from-code-point"),require("core-js/modules/es6.string.includes"),require("core-js/modules/es6.string.italics"),require("core-js/modules/es6.string.iterator"),require("core-js/modules/es6.string.link"),require("core-js/modules/es7.string.pad-start"),require("core-js/modules/es7.string.pad-end"),require("core-js/modules/es6.string.raw"),require("core-js/modules/es6.string.repeat"),require("core-js/modules/es6.string.small"),require("core-js/modules/es6.string.starts-with"),require("core-js/modules/es6.string.strike"),require("core-js/modules/es6.string.sub"),require("core-js/modules/es6.string.sup"),require("core-js/modules/es7.string.trim-left"),require("core-js/modules/es7.string.trim-right"),require("core-js/modules/es6.typed.array-buffer"),require("core-js/modules/es6.typed.int8-array"),require("core-js/modules/es6.typed.uint8-array"),require("core-js/modules/es6.typed.uint8-clamped-array"),require("core-js/modules/es6.typed.int16-array"),require("core-js/modules/es6.typed.uint16-array"),require("core-js/modules/es6.typed.int32-array"),require("core-js/modules/es6.typed.uint32-array"),require("core-js/modules/es6.typed.float32-array"),require("core-js/modules/es6.typed.float64-array"),require("core-js/modules/es6.weak-map"),require("core-js/modules/es6.weak-set"),require("core-js/modules/web.timers"),require("core-js/modules/web.immediate"),require("core-js/modules/web.dom.iterable"),require("regenerator-runtime/runtime");var e,r,s,t,o,i,n,u,a,d=y(require("stats.js/src/Stats")),c=q(require("dat.gui")),l=q(require("three")),m=require("three/examples/jsm/controls/OrbitControls.js"),p=require("three/examples/jsm/utils/BufferGeometryUtils.js"),j=require("../src/index.js");function f(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return f=function(){return e},e}function q(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=f();if(r&&r.has(e))return r.get(e);var s={},t=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if(Object.prototype.hasOwnProperty.call(e,o)){var i=t?Object.getOwnPropertyDescriptor(e,o):null;i&&(i.get||i.set)?Object.defineProperty(s,o,i):s[o]=e[o]}return s.default=e,r&&r.set(e,s),s}function y(e){return e&&e.__esModule?e:{default:e}}l.Mesh.prototype.raycast=j.acceleratedRaycast,l.BufferGeometry.prototype.computeBoundsTree=j.computeBoundsTree,l.BufferGeometry.prototype.disposeBoundsTree=j.disposeBoundsTree;var g,h=new l.Vector3(0,0,1),w=!1,b=new l.Vector2,v=new l.Vector2,x=!1,B=!1,M=new l.Vector3,z={size:.1,brush:"clay",intensity:50,maxSteps:10,invert:!1,symmetrical:!0,flatShading:!1,depth:10,displayHelper:!1};function S(){i&&(i.geometry.dispose(),i.material.dispose(),r.remove(i)),g||(g=(new l.TextureLoader).load("../textures/skinHazardousarts2.jpg"));var e=new l.IcosahedronBufferGeometry(1,100);e.deleteAttribute("uv"),(e=p.BufferGeometryUtils.mergeVertices(e)).attributes.position.setUsage(l.DynamicDrawUsage),e.attributes.normal.setUsage(l.DynamicDrawUsage),e.computeBoundsTree({setBoundingBox:!1}),(i=new l.Mesh(e,new l.MeshMatcapMaterial({flatShading:z.flatShading,matcap:g}))).material.matcap.encoding=l.sRGBEncoding,i.frustumCulled=!1,r.add(i),a||((a=new j.MeshBVHVisualizer(i,z.depth)).visible=z.displayHelper,r.add(a)),a.mesh=i,a.update()}function E(){(t=new l.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),t.setSize(window.innerWidth,window.innerHeight),t.setClearColor(1251612,1),t.gammaOutput=!0,document.body.appendChild(t.domElement),t.domElement.style.touchAction="none",(r=new l.Scene).fog=new l.Fog(1251612,20,60);var p=new l.DirectionalLight(16777215,.5);p.position.set(1,1,1),r.add(p),r.add(new l.AmbientLight(16777215,.4)),S();for(var j=[new l.Vector3,new l.Vector3(0,0,1)],f=0;f<50;f++){var q=f+1,y=Math.sin(2*Math.PI*f/50),g=Math.cos(2*Math.PI*f/50),h=Math.sin(2*Math.PI*q/50),v=Math.cos(2*Math.PI*q/50);j.push(new l.Vector3(y,g,0),new l.Vector3(h,v,0))}(n=new l.LineSegments).geometry.setFromPoints(j),n.material.color.set(16485376),r.add(n),u=n.clone(),r.add(u),(s=new l.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,3),s.far=100,s.updateProjectionMatrix(),e=new d.default,document.body.appendChild(e.dom);var B=new c.GUI,M=B.addFolder("Sculpting");M.add(z,"brush",["normal","clay","flatten"]),M.add(z,"size").min(.025).max(.25).step(.005),M.add(z,"intensity").min(1).max(100).step(1),M.add(z,"maxSteps").min(1).max(25).step(1),M.add(z,"symmetrical"),M.add(z,"invert"),M.add(z,"flatShading").onChange(function(e){i.material.flatShading=e,i.material.needsUpdate=!0}),M.open();var E=B.addFolder("BVH Helper");E.add(z,"depth").min(1).max(20).step(1).onChange(function(e){a.depth=parseFloat(e),a.update()}),E.add(z,"displayHelper").onChange(function(e){a.visible=e}),E.open(),B.add({reset:S},"reset"),B.add({rebuildBVH:function(){i.geometry.computeBoundsTree({setBoundingBox:!1}),a.update()}},"rebuildBVH"),B.open(),window.addEventListener("resize",function(){s.aspect=window.innerWidth/window.innerHeight,s.updateProjectionMatrix(),t.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("pointermove",function(e){b.x=e.clientX/window.innerWidth*2-1,b.y=-e.clientY/window.innerHeight*2+1}),window.addEventListener("pointerdown",function(e){b.x=e.clientX/window.innerWidth*2-1,b.y=-e.clientY/window.innerHeight*2+1,x=Boolean(1&e.buttons),w=!0;var r=new l.Raycaster;r.setFromCamera(b,s),r.firstHitOnly=!0;var t=r.intersectObject(i);o.enabled=0===t.length},!0),window.addEventListener("pointerup",function(e){x=Boolean(1&e.buttons),"touch"===e.pointerType&&(w=!1)}),window.addEventListener("contextmenu",function(e){e.preventDefault()}),window.addEventListener("wheel",function(e){var r=e.deltaY;1===e.deltaMode&&(r*=40),2===e.deltaMode&&(r*=40),z.size+=1e-4*r,z.size=Math.max(Math.min(z.size,.25),.025),B.updateDisplay()}),(o=new m.OrbitControls(s,t.domElement)).minDistance=1.5,o.addEventListener("start",function(){this.active=!0}),o.addEventListener("end",function(){this.active=!1})}function P(e,r){var s=arguments.length>2&&void 0!==arguments[2]&&arguments[2],t=arguments.length>3&&void 0!==arguments[3]?arguments[3]:new Set,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:new Set,n=new l.Matrix4;n.copy(i.matrixWorld).invert();var u=new l.Sphere;u.center.copy(e).applyMatrix4(n),u.radius=z.size;var a=new Set,d=new l.Vector3,c=new l.Vector3,m=i.geometry.index,p=i.geometry.attributes.position,f=i.geometry.attributes.normal,q=new Set;i.geometry.boundsTree.shapecast(i,function(e){var r=u.intersectsBox(e),s=e.min,t=e.max;if(r){for(var o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var n=0;n<=1;n++)if(d.set(0===o?s.x:t.x,0===i?s.y:t.y,0===n?s.z:t.z),!u.containsPoint(d))return j.INTERSECTED;return j.CONTAINED}return r?j.INTERSECTED:j.NOT_INTERSECTED},function(e,r,s,i,n){var d=~~(r/3);q.add(d),t.add(d);var c=m.getX(r),l=m.getX(s),p=m.getX(i);return n?(a.add(c),a.add(l),a.add(p),o.add(c),o.add(l),o.add(p)):(u.containsPoint(e.a)&&(a.add(c),o.add(c)),u.containsPoint(e.b)&&(a.add(l),o.add(l)),u.containsPoint(e.c)&&(a.add(p),o.add(p))),!1});var y=new l.Vector3;y.copy(e).applyMatrix4(n);var g=new l.Vector3,w=0;if(a.forEach(function(e){d.fromBufferAttribute(f,e),c.add(d),s||(w++,d.fromBufferAttribute(p,e),g.add(d))}),c.normalize(),r.quaternion.setFromUnitVectors(h,c),w&&g.multiplyScalar(1/w),!s){var b=1e-4*z.intensity,v=new l.Plane;v.setFromNormalAndCoplanarPoint(c,g),a.forEach(function(e){d.fromBufferAttribute(p,e);var r=d.distanceTo(y),s=z.invert?-1:1,t=1-r/z.size;if("clay"===z.brush){t=Math.pow(t,3);var o=v.distanceToPoint(d),i=s*Math.min(4*t,1);d.addScaledVector(c,i*b-s*o*i*.3)}else if("normal"===z.brush)t=Math.pow(t,2),d.addScaledVector(c,s*t*b);else if("flatten"===z.brush){t=Math.pow(t,2);var n=v.distanceToPoint(d);d.addScaledVector(c,-n*t*z.intensity*.01*.5)}p.setXYZ(e,d.x,d.y,d.z),f.setXYZ(e,0,0,0)}),a.size&&(p.needsUpdate=!0)}}function V(e,r){var s=new l.Vector3,t=new l.Vector3,o=i.geometry.index,n=i.geometry.attributes.position,u=i.geometry.attributes.normal,a=new l.Triangle;e.forEach(function(e){var i=3*e,d=i+0,c=i+1,l=i+2,m=o.getX(d),p=o.getX(c),j=o.getX(l);a.a.fromBufferAttribute(n,m),a.b.fromBufferAttribute(n,p),a.c.fromBufferAttribute(n,j),a.getNormal(t),r.has(m)&&(s.fromBufferAttribute(u,m),s.add(t),u.setXYZ(m,s.x,s.y,s.z)),r.has(p)&&(s.fromBufferAttribute(u,p),s.add(t),u.setXYZ(p,s.x,s.y,s.z)),r.has(j)&&(s.fromBufferAttribute(u,j),s.add(t),u.setXYZ(j,s.x,s.y,s.z))}),r.forEach(function(e){s.fromBufferAttribute(u,e),s.normalize(),u.setXYZ(e,s.x,s.y,s.z)}),u.needsUpdate=!0}function T(){if(requestAnimationFrame(T),e.begin(),o.active||!w)n.visible=!1,u.visible=!1,M.setScalar(1/0);else{var d=new l.Raycaster;d.setFromCamera(b,s),d.firstHitOnly=!0;var c=d.intersectObject(i,!0)[0];if(c)if(n.visible=!0,n.scale.set(z.size,z.size,.1),n.position.copy(c.point),u.visible=z.symmetrical,u.scale.set(z.size,z.size,.1),u.position.copy(c.point),u.position.x*=-1,o.enabled=!1,M.x===1/0&&M.copy(c.point),x||B){for(var 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null)
\ No newline at end of file
diff --git a/umd/index.js.map b/umd/index.js.map
index f0beb3e2b..250245b5f 100644
--- a/umd/index.js.map
+++ b/umd/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","export function arrayToBox( nodeIndex32, array, target ) {\n\n\ttarget.min.x = array[ nodeIndex32 ];\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\n\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\n\n}\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit() {\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\t\t\t_traverse( 0 );\n\n\t\t}\n\n\t\tfunction _traverse( node32Index ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\tconst leftChange = _traverse( left );\n\t\t\t\tconst rightChange = _traverse( right );\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\n\t\t}\n\n\t\tclearBuffer();\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\t\tclearBuffer();\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tclearBuffer();\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\n\n\t\t// default the triangle intersection function\n\t\tintersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tclearBuffer();\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\tbox => obb.intersectsBox( box ),\n\t\t\ttri => obb.intersectsTriangle( tri )\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\tbox => sphere.intersectsBox( box ),\n\t\t\ttri => tri.intersectsSphere( sphere )\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\n\t\t\ttri => {\n\n\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\ttri.update();\n\n\t\t\t\t}\n\n\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttri2.update();\n\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn false;\n\n\t\t\t},\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\n\t\t\ttri => {\n\n\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\tconst dist = point.distanceTo( temp );\n\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t}\n\n\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t},\n\t\t\tbox => box.distanceToPoint( point )\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix 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null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file
+{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","export function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\r\nimport { CENTER } from './Constants.js';\r\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport {\r\n\traycast,\r\n\traycastFirst,\r\n\tshapecast,\r\n\tintersectsGeometry,\r\n\tsetBuffer,\r\n\tclearBuffer,\r\n} from './castFunctions.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\r\n\r\nconst obb = new OrientedBox();\r\nconst temp = new Vector3();\r\nconst tri2 = new SeparatingAxisTriangle();\r\nconst temp1 = new Vector3();\r\nconst temp2 = new Vector3();\r\nconst tempBox = new Box3();\r\n\r\nexport default class MeshBVH {\r\n\r\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\r\n\r\n\t\tconst rootData = bvh._roots;\r\n\t\tconst indexAttribute = geometry.getIndex();\r\n\t\tconst result = {\r\n\t\t\troots: rootData,\r\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\r\n\t\t};\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tstatic deserialize( data, geometry, setIndex = true ) {\r\n\r\n\t\tconst { index, roots } = data;\r\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\r\n\t\tbvh._roots = roots;\r\n\r\n\t\tif ( setIndex ) {\r\n\r\n\t\t\tconst indexAttribute = geometry.getIndex();\r\n\t\t\tif ( indexAttribute === null ) {\r\n\r\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\r\n\t\t\t\tgeometry.setIndex( newIndex );\r\n\r\n\t\t\t} else if ( indexAttribute.array !== index ) {\r\n\r\n\t\t\t\tindexAttribute.array.set( index );\r\n\t\t\t\tindexAttribute.needsUpdate = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn bvh;\r\n\r\n\t}\r\n\r\n\tconstructor( geometry, options = {} ) {\r\n\r\n\t\tif ( ! geometry.isBufferGeometry ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\r\n\r\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\r\n\r\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\r\n\r\n\t\t}\r\n\r\n\t\t// default options\r\n\t\toptions = Object.assign( {\r\n\r\n\t\t\tstrategy: CENTER,\r\n\t\t\tmaxDepth: 40,\r\n\t\t\tmaxLeafTris: 10,\r\n\t\t\tverbose: true,\r\n\r\n\t\t\tsetBoundingBox: true,\r\n\r\n\t\t\t// undocumented options\r\n\r\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\r\n\t\t\t[ SKIP_GENERATION ]: false\r\n\r\n\t\t}, options );\r\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\r\n\r\n\t\tthis._roots = null;\r\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\r\n\r\n\t\t\tthis._roots = buildPackedTree( geometry, options );\r\n\r\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\r\n\r\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// retain references to the geometry so we can use them it without having to\r\n\t\t// take a geometry reference in every function.\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\trefit() {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tconst indexArr = geometry.index.array;\r\n\t\tconst posArr = geometry.attributes.position.array;\r\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\r\n\t\tconst roots = this._roots;\r\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\r\n\r\n\t\t\tbuffer = roots[ i ];\r\n\t\t\tuint32Array = new Uint32Array( buffer );\r\n\t\t\tuint16Array = new Uint16Array( buffer );\r\n\t\t\tfloat32Array = new Float32Array( buffer );\r\n\t\t\t_traverse( 0 );\r\n\r\n\t\t}\r\n\r\n\t\tfunction _traverse( node32Index ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\r\n\t\t\t\tlet minx = Infinity;\r\n\t\t\t\tlet miny = Infinity;\r\n\t\t\t\tlet minz = Infinity;\r\n\t\t\t\tlet maxx = - Infinity;\r\n\t\t\t\tlet maxy = - Infinity;\r\n\t\t\t\tlet maxz = - Infinity;\r\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\r\n\r\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\r\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\r\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\r\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\r\n\r\n\t\t\t\t\tif ( x < minx ) minx = x;\r\n\t\t\t\t\tif ( x > maxx ) maxx = x;\r\n\r\n\t\t\t\t\tif ( y < miny ) miny = y;\r\n\t\t\t\t\tif ( y > maxy ) maxy = y;\r\n\r\n\t\t\t\t\tif ( z < minz ) minz = z;\r\n\t\t\t\t\tif ( z > maxz ) maxz = z;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\r\n\t\t\t\t) {\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + 8;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\r\n\t\t\t\tconst leftChange = _traverse( left );\r\n\t\t\t\tconst rightChange = _traverse( right );\r\n\t\t\t\tconst didChange = leftChange || rightChange;\r\n\r\n\t\t\t\tif ( didChange ) {\r\n\r\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\t\tconst lefti = left + i;\r\n\t\t\t\t\t\tconst righti = right + i;\r\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\r\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\r\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\r\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\r\n\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn didChange;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\ttraverse( callback, rootIndex = 0 ) {\r\n\r\n\t\tconst buffer = this._roots[ rootIndex ];\r\n\t\tconst uint32Array = new Uint32Array( buffer );\r\n\t\tconst uint16Array = new Uint16Array( buffer );\r\n\t\t_traverse( 0 );\r\n\r\n\t\tfunction _traverse( node32Index, depth = 0 ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\r\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\r\n\r\n\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t_traverse( left, depth + 1 );\r\n\t\t\t\t\t_traverse( right, depth + 1 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t/* Core Cast Functions */\r\n\traycast( mesh, raycaster, ray, intersects ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t}\r\n\r\n\traycastFirst( mesh, raycaster, ray ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tlet closestResult = null;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\r\n\r\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\r\n\r\n\t\t\t\tclosestResult = result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn closestResult;\r\n\r\n\t}\r\n\r\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\r\n\r\n\t\t// default the triangle intersection function\r\n\t\tintersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\t/* Derived Cast Functions */\r\n\tintersectsBox( mesh, box, boxToMesh ) {\r\n\r\n\t\tobb.set( box.min, box.max, boxToMesh );\r\n\t\tobb.update();\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => obb.intersectsBox( box ),\r\n\t\t\ttri => obb.intersectsTriangle( tri )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tintersectsSphere( mesh, sphere ) {\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => sphere.intersectsBox( box ),\r\n\t\t\ttri => tri.intersectsSphere( sphere )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t}\r\n\r\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\tobb.update();\r\n\r\n\t\tconst pos = otherGeometry.attributes.position;\r\n\t\tconst index = otherGeometry.index;\r\n\r\n\t\tlet tempTarget1 = null;\r\n\t\tlet tempTarget2 = null;\r\n\t\tif ( target1 ) {\r\n\r\n\t\t\ttempTarget1 = temp1;\r\n\r\n\t\t}\r\n\r\n\t\tif ( target2 ) {\r\n\r\n\t\t\ttempTarget2 = temp2;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\tif ( tri.needsUpdate ) {\r\n\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tconst sphere1 = tri.sphere;\r\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\r\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\r\n\r\n\t\t\t\t\tconst sphere2 = tri2.sphere;\r\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\r\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\r\n\r\n\t\t\t\t\t\tcontinue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\ttri2.update();\r\n\r\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\r\n\t\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\t\tif ( target1 ) {\r\n\r\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tif ( target2 ) {\r\n\r\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\r\n\t\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn false;\r\n\r\n\t\t\t},\r\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\t// early out if under minThreshold\r\n\t\t// skip checking if over maxThreshold\r\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\r\n\t\t// returns Infinity if no value found\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\ttri.closestPointToPoint( point, temp );\r\n\t\t\t\tconst dist = point.distanceTo( temp );\r\n\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\tif ( target ) {\r\n\r\n\t\t\t\t\t\ttarget.copy( temp );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t},\r\n\t\t\tbox => box.distanceToPoint( point )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tgetBoundingBox( target ) {\r\n\r\n\t\ttarget.makeEmpty();\r\n\r\n\t\tconst roots = this._roots;\r\n\t\troots.forEach( buffer => {\r\n\r\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\r\n\t\t\ttarget.union( tempBox );\r\n\r\n\t\t} );\r\n\r\n\t\treturn target;\r\n\r\n\t}\r\n\r\n}\r\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as 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\ No newline at end of file

From 11d3385368f2f67535de9e873edc9357d578f258 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Wed, 10 Mar 2021 23:28:48 -0800
Subject: [PATCH 115/139] Add refit test

---
 test/MeshBVH.test.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/test/MeshBVH.test.js b/test/MeshBVH.test.js
index 4400fb973..0572257fc 100644
--- a/test/MeshBVH.test.js
+++ b/test/MeshBVH.test.js
@@ -179,6 +179,26 @@ describe( 'Bounds Tree', () => {
 
 	} );
 
+	describe( 'refit', () => {
+
+		it( 'should resize the bounds to fit any updated triangles.', () => {
+
+			const geom = new SphereBufferGeometry( 1, 10, 10 );
+			geom.computeBoundsTree();
+
+			const debug = new MeshBVHDebug( geom.boundsTree, geom );
+			expect( debug.validateBounds() ).toBe( true );
+
+			geom.attributes.position.setX( 0, 10 );
+			expect( debug.validateBounds() ).toBe( false );
+
+			geom.boundsTree.refit();
+			expect( debug.validateBounds() ).toBe( true );
+
+		} );
+
+	} );
+
 } );
 
 describe( 'Serialization', () => {

From 278506723e58c9145195c705891ffd2efbaf02b1 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 11 Mar 2021 00:28:36 -0800
Subject: [PATCH 116/139] Update package.json

---
 package.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package.json b/package.json
index e39bfe221..8ef9034f2 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "module": "src/index.js",
   "main": "src/index.js",
   "type": "module",
+  "sideEffects": false,
   "scripts": {
     "generate-cast-functions": "node scripts/generate-cast-functions.js",
     "start": "npm run generate-cast-functions & concurrently \"parcel watch ./example/*.html --out-dir ./example/bundle/ --public-url . --no-cache\" \"rollup -w -c\" \"static-server\"",

From b3e0cfb621dd66b16058e3361235a3f9e0762213 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 11 Mar 2021 00:32:05 -0800
Subject: [PATCH 117/139] Update CHANGELOG.md

---
 CHANGELOG.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d630b569..100ee8a70 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,12 +9,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - `MeshBVH.refit` function to refit the bounds to modified vertices.
 - `setBoundingBox` MeshBVH construction option.
 - `MeshBVH.getBoundingBox` function.
+- `intersectsRange` callback option to `MeshBVH.shapecast`.
 
 ### Changed
 - Removed `src/worker/generateAsync.js` function. Use `GenerateMeshBVHWorker` instead.
 - Use `type: module` in package.json to enable use of es6 modules in node.
+- Add `sideEffects: false` to package.json.
 - Remove ability to generate an unpacked BVH.
 - Improved "closestPointToPoint" performance slightly.
+- `MeshBVH.shapecast` to take an object of callback functions instead of a list of function arguments. See README for new API. Calls using the old function will log a warning.
 
 ### Fixed
 - `MeshBVHVisualizer` not using the new geometry BVH if one was generated.
@@ -22,7 +25,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Case where passing in null `intersectsTriangleFunc` to `MeshBVH.shapecast` could throw an error.
 - Case where the buffer being raycast against was not cleared correctly if a BVH had multiple roots.
 
-
 ## [0.3.7] - 2021-03-06
 ### Fixed
 - Include built umd file including v0.3.6 changes.

From 4467e264b6fbe9cadefc049b8347511c45c925c6 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 11:39:57 -0800
Subject: [PATCH 118/139] fix bvh helper performance

---
 example/sculpt.js | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index ff1efacc2..065e70bcb 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -87,8 +87,11 @@ function reset() {
 	if ( ! bvhHelper ) {
 
 		bvhHelper = new MeshBVHVisualizer( targetMesh, params.depth );
-		bvhHelper.visible = params.displayHelper;
-		scene.add( bvhHelper );
+		if ( params.displayHelper ) {
+
+			scene.add( bvhHelper );
+
+		}
 
 	}
 
@@ -184,7 +187,16 @@ function init() {
 	} );
 	helperFolder.add( params, 'displayHelper' ).onChange( display => {
 
-		bvhHelper.visible = display;
+		if ( display ) {
+
+			scene.add( bvhHelper );
+			bvhHelper.update();
+
+		} else {
+
+			scene.remove( bvhHelper );
+
+		}
 
 	} );
 	helperFolder.open();
@@ -662,7 +674,12 @@ function render() {
 					// the model but it's faster to do them here.
 					updateNormals( changedTriangles, changedIndices );
 					targetMesh.geometry.boundsTree.refit();
-					bvhHelper.update();
+
+					if ( bvhHelper.parent !== null ) {
+
+						bvhHelper.update();
+
+					}
 
 				} else {
 

From 124a83a1d972c644c5ab89c988fef53d22a195a8 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 12:45:39 -0800
Subject: [PATCH 119/139] Update intersectTriangle signature

---
 src/MeshBVH.js               | 13 +++++++++++--
 src/Utils/BufferNodeUtils.js |  6 +++---
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index afb5b9c11..beb9319f9 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -333,7 +333,16 @@ export default class MeshBVH {
 
 			if ( _intersectsTriangleFunc ) {
 
-				// TODO: if we update the arguments we need to do so here
+				// Support the previous function signature that provided three sequential index buffer
+				// indices here.
+				const originalTriangleFunc = _intersectsTriangleFunc;
+				_intersectsTriangleFunc = ( tri, index, contained, depth ) => {
+
+					const i3 = index * 3;
+					return originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );
+
+				};
+
 
 			}
 
@@ -384,7 +393,7 @@ export default class MeshBVH {
 
 			} else {
 
-				intersectsRange = ( tri, a, b, c, contained ) => {
+				intersectsRange = ( offset, count, contained ) => {
 
 					return contained;
 
diff --git a/src/Utils/BufferNodeUtils.js b/src/Utils/BufferNodeUtils.js
index c12a168ad..2cb429f98 100644
--- a/src/Utils/BufferNodeUtils.js
+++ b/src/Utils/BufferNodeUtils.js
@@ -24,12 +24,12 @@ export function iterateOverTriangles(
 
 	const index = geometry.index;
 	const pos = geometry.attributes.position;
-	for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+	for ( let i = offset, l = count + offset; i < l; i ++ ) {
 
-		setTriangle( triangle, i, index, pos );
+		setTriangle( triangle, i * 3, index, pos );
 		triangle.needsUpdate = true;
 
-		if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
+		if ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {
 
 			return true;
 

From 6e208e9b4fd936559a73372a22051a6cd0909d05 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 12:46:30 -0800
Subject: [PATCH 120/139] Fix tests

---
 test/ShapeCasts.test.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/ShapeCasts.test.js b/test/ShapeCasts.test.js
index 9512b04da..ebed2e65d 100644
--- a/test/ShapeCasts.test.js
+++ b/test/ShapeCasts.test.js
@@ -111,7 +111,7 @@ function runSuiteWithOptions( defaultOptions ) {
 				mesh,
 				{
 					intersectsBounds: getIntersectsBoxFunction( sphere ),
-					intersectsTriangle: ( tri, i0, i1, i2, contained ) => {
+					intersectsTriangle: ( tri, index, contained ) => {
 
 						allContained = contained && allContained;
 						numContained ++;
@@ -137,7 +137,7 @@ function runSuiteWithOptions( defaultOptions ) {
 				mesh,
 				{
 					intersectsBounds: getIntersectsBoxFunction( sphere ),
-					intersectsTriangle: ( tri, i0, i1, i2, contained ) => {
+					intersectsTriangle: ( tri, index, contained ) => {
 
 						allContained = contained && allContained;
 						if ( contained ) {
@@ -166,7 +166,7 @@ function runSuiteWithOptions( defaultOptions ) {
 				mesh,
 				{
 					intersectsBounds: getIntersectsBoxFunction( sphere ),
-					intersectsTriangle: ( tri, i0, i1, i2, contained ) => {
+					intersectsTriangle: () => {
 
 						trianglesIterated ++;
 

From 9b3fc98126803a626029829795177960310f6373 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 13:02:18 -0800
Subject: [PATCH 121/139] README, CHANGELOG update

---
 CHANGELOG.md | 2 +-
 README.md    | 4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 100ee8a70..2e558b429 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,7 +17,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Add `sideEffects: false` to package.json.
 - Remove ability to generate an unpacked BVH.
 - Improved "closestPointToPoint" performance slightly.
-- `MeshBVH.shapecast` to take an object of callback functions instead of a list of function arguments. See README for new API. Calls using the old function will log a warning.
+- `MeshBVH.shapecast` to take an object of callback functions instead of a list of function arguments and the triangle intersection callback has been changed to take a single triangle index. See README for new API. Calls using the old function will log a warning.
 
 ### Fixed
 - `MeshBVHVisualizer` not using the new geometry BVH if one was generated.
diff --git a/README.md b/README.md
index 6ca6b756c..8b0627fd7 100644
--- a/README.md
+++ b/README.md
@@ -347,9 +347,7 @@ shapecast(
 
 		intersectsTriangle : (
 			triangle : Triangle,
-			index1 : Number,
-			index2 : Number,
-			index3 : Number,
+			triangleIndex : Number,
 			contained : Boolean,
 			depth : Number
 		) => Boolean = null,

From 6cc6e094299e3f597fdd56d2a0544943af1ba57c Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 13:07:41 -0800
Subject: [PATCH 122/139] fix examples

---
 example/collectTriangles.js | 5 +++--
 example/sculpt.js           | 8 ++++++--
 example/selection.js        | 7 ++++++-
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/example/collectTriangles.js b/example/collectTriangles.js
index 057c0d7ba..ab0d71c66 100644
--- a/example/collectTriangles.js
+++ b/example/collectTriangles.js
@@ -266,11 +266,12 @@ function render() {
 
 					},
 
-					intersectsTriangle: ( tri, a, b, c, contained ) => {
+					intersectsTriangle: ( tri, i, contained ) => {
 
 						if ( contained || tri.intersectsSphere( sphere ) ) {
 
-							indices.push( a, b, c );
+							const i3 = 3 * i;
+							indices.push( i3, i3 + 1, i3 + 2 );
 
 						}
 
diff --git a/example/sculpt.js b/example/sculpt.js
index 065e70bcb..20032cd2a 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -361,12 +361,16 @@ function performStroke( point, brushObject, brushOnly = false, accumulatedTriang
 
 			},
 
-			intersectsTriangle: ( tri, a, b, c, contained ) => {
+			intersectsTriangle: ( tri, index, contained ) => {
 
-				const triIndex = ~ ~ ( a / 3 );
+				const triIndex = index;
 				triangles.add( triIndex );
 				accumulatedTriangles.add( triIndex );
 
+				const i3 = 3 * index;
+				const a = i3 + 0;
+				const b = i3 + 1;
+				const c = i3 + 2;
 				const va = indexAttr.getX( a );
 				const vb = indexAttr.getX( b );
 				const vc = indexAttr.getX( c );
diff --git a/example/selection.js b/example/selection.js
index dcea10dbc..b5935c0f1 100644
--- a/example/selection.js
+++ b/example/selection.js
@@ -584,7 +584,12 @@ function updateSelection() {
 
 			},
 
-			intersectsTriangle: ( tri, a, b, c, contained, depth ) => {
+			intersectsTriangle: ( tri, index, contained, depth ) => {
+
+				const i3 = index * 3;
+				const a = i3 + 0;
+				const b = i3 + 1;
+				const c = i3 + 2;
 
 				// if the parent bounds were marked as contained
 				if ( contained ) {

From d1078b13019c0f4df913a217af367b2be7e5e87b Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 13:23:29 -0800
Subject: [PATCH 123/139] Pass through node indices

---
 src/castFunctions.template.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index 0ecef4276..2198aa438 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -233,7 +233,7 @@ export const shapecast = ( function () {
 			}
 
 			const isC1Leaf = IS_LEAF( c1 );
-			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
+			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );
 
 			let c1StopTraversal;
 			if ( c1Intersection === CONTAINED ) {
@@ -271,7 +271,7 @@ export const shapecast = ( function () {
 			arrayToBox( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
 
 			const isC2Leaf = IS_LEAF( c2 );
-			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
+			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );
 
 			let c2StopTraversal;
 			if ( c2Intersection === CONTAINED ) {

From 7655e845ca3db072c8f35e4595c55ec56b5fd6ce Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 13:24:59 -0800
Subject: [PATCH 124/139] README update

---
 README.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 8b0627fd7..75057e0b1 100644
--- a/README.md
+++ b/README.md
@@ -335,7 +335,8 @@ shapecast(
 			box : Box3,
 			isLeaf : Boolean,
 			score : Number | undefined,
-			depth : Number
+			depth : Number,
+			nodeIndex : Number
 		) => NOT_INTERSECTED | INTERSECTED | CONTAINED,
 
 		intersectsRange : (
@@ -365,7 +366,7 @@ A generalized cast function that can be used to implement intersection logic for
 
 `traverseBoundsOrder` takes the axis aligned bounding box representing an internal node local to the bvh and returns a score (often distance) used to determine whether the left or right node should be traversed first. The shape with the lowest score is traversed first.
 
-`intersectsBounds` takes the axis aligned bounding box representing an internal node local to the bvh, whether or not the node is a leaf, and the score calculated by `orderNodesFunc` and returns a constant indicating whether or not the bounds is intersected or contained meaning traversal should continue. If `CONTAINED` is returned then and optimization is triggered allowing the range and / or triangle intersection callbacks to be run immediately rather than traversing the rest of the child bounds.
+`intersectsBounds` takes the axis aligned bounding box representing an internal node local to the bvh, whether or not the node is a leaf, and the score calculated by `orderNodesFunc`, the node depth, and the node index (for use with the [refit](#refit) function) and returns a constant indicating whether or not the bounds is intersected or contained meaning traversal should continue. If `CONTAINED` is returned then and optimization is triggered allowing the range and / or triangle intersection callbacks to be run immediately rather than traversing the rest of the child bounds.
 
 `intersectsRange` takes a triangle offset and count representing the number of triangles to be iterated over. 1 triangle from this range represents 3 values in the geometry's index buffer. If this function returns true then traversal is stopped and `intersectsTriangle` is not called if provided.
 

From 8dd52632de12ab77998b108f1ca0b5acf8437744 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 13:32:30 -0800
Subject: [PATCH 125/139] update benchmark

---
 benchmark/run-benchmark.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/benchmark/run-benchmark.js b/benchmark/run-benchmark.js
index 659d5f898..0a1f9f875 100644
--- a/benchmark/run-benchmark.js
+++ b/benchmark/run-benchmark.js
@@ -186,9 +186,15 @@ function runSuite( strategy ) {
 		null,
 		() => {
 
-			mesh.geometry.boundsTree.shapecast( mesh, box => sphere.intersectsBox( box ), tri => {
+			mesh.geometry.boundsTree.shapecast( mesh, {
 
-				tri.intersectsSphere( sphere );
+				intersectsBounds: box => sphere.intersectsBox( box ),
+
+				intersectsTriangle: tri => {
+
+					tri.intersectsSphere( sphere );
+
+				},
 
 			} );
 

From b03b8f3153e62a2e32c14ad14ccccbd627549d7a Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 17:10:30 -0800
Subject: [PATCH 126/139] Add more optimal refit, add benchmark

---
 benchmark/run-benchmark.js    | 51 ++++++++++++++++++++++++++++++++++-
 src/MeshBVH.js                | 37 ++++++++++++++++++++++---
 src/castFunctions.js          | 14 +++++-----
 src/castFunctions.template.js | 10 +++----
 4 files changed, 95 insertions(+), 17 deletions(-)

diff --git a/benchmark/run-benchmark.js b/benchmark/run-benchmark.js
index 0a1f9f875..8d7baa43c 100644
--- a/benchmark/run-benchmark.js
+++ b/benchmark/run-benchmark.js
@@ -46,6 +46,40 @@ function runSuite( strategy ) {
 
 	const options = { strategy };
 	geometry.computeBoundsTree( options );
+
+	// generate a set of node indices to use with an optimized refit function
+	const refitIndices = new Set();
+	const terminationIndices = new Set();
+	const newSphere = new THREE.Sphere(
+		new THREE.Vector3( 0, 0, 0 ),
+		0.5,
+	);
+	geometry.boundsTree.shapecast(
+		mesh,
+		{
+
+			intersectsBounds: ( box, isLeaf, score, depth, nodeIndex ) => {
+
+				if ( box.intersectsSphere( newSphere ) ) {
+
+					refitIndices.add( nodeIndex );
+					return true;
+
+				}
+
+				return false;
+
+			},
+
+			intersectsRange: ( offset, count, contained, depth, nodeIndex ) => {
+
+				terminationIndices.add( nodeIndex );
+
+			}
+
+		}
+	);
+
 	logExtremes( geometry.boundsTree, geometry );
 
 	geometry.computeBoundingBox();
@@ -122,7 +156,22 @@ function runSuite( strategy ) {
 		null,
 		() => {
 
-			geometry.boundsTree.refit( geometry );
+			geometry.boundsTree.refit();
+
+		},
+		3000,
+		50
+
+	);
+
+	runBenchmark(
+
+		'Refit w/ hints',
+		null,
+		() => {
+
+			geometry.boundsTree.refit( refitIndices, terminationIndices );
+
 
 		},
 		3000,
diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index beb9319f9..89f7ea905 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -119,7 +119,20 @@ export default class MeshBVH {
 
 	}
 
-	refit() {
+	refit( nodeIndices = null, terminationIndices = null ) {
+
+		if ( nodeIndices && Array.isArray( nodeIndices ) ) {
+
+			nodeIndices = new Set( nodeIndices );
+
+		}
+
+
+		if ( terminationIndices && Array.isArray( terminationIndices ) ) {
+
+			terminationIndices = new Set( terminationIndices );
+
+		}
 
 		const geometry = this.geometry;
 		const indexArr = geometry.index.array;
@@ -136,7 +149,7 @@ export default class MeshBVH {
 
 		}
 
-		function _traverse( node32Index ) {
+		function _traverse( node32Index, force = false ) {
 
 			const node16Index = node32Index * 2;
 			const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
@@ -200,8 +213,24 @@ export default class MeshBVH {
 				const left = node32Index + 8;
 				const right = uint32Array[ node32Index + 6 ];
 
-				const leftChange = _traverse( left );
-				const rightChange = _traverse( right );
+				let leftChange = false;
+				let forceLeft = force || terminationIndices && terminationIndices.has( left );
+				let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );
+				if ( traverseLeft ) {
+
+					leftChange = _traverse( left, forceLeft );
+
+				}
+
+				let rightChange = false;
+				let forceRight = force || terminationIndices && terminationIndices.has( right );
+				let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );
+				if ( traverseRight ) {
+
+					rightChange = _traverse( right, forceRight );
+
+				}
+
 				const didChange = leftChange || rightChange;
 
 				if ( didChange ) {
diff --git a/src/castFunctions.js b/src/castFunctions.js
index e0b4519ff..a5d126977 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -183,7 +183,7 @@ export const shapecast = ( function () {
 
 			const offset = uint32Array[ nodeIndex32 + 6 ];
 			const count = uint16Array[ nodeIndex16 + 14 ];
-			return intersectsRangeFunc( offset, count, false, depth );
+			return intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );
 
 		} else {
 
@@ -230,8 +230,8 @@ export const shapecast = ( function () {
 
 			}
 
-			const isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );
-			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
+			const isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );
+			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );
 
 			let c1StopTraversal;
 			if ( c1Intersection === CONTAINED ) {
@@ -240,7 +240,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
+				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );
 
 			} else {
 
@@ -268,8 +268,8 @@ export const shapecast = ( function () {
 			box2 = cachedBox2;
 			arrayToBox( c2, float32Array, box2 );
 
-			const isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );
-			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
+			const isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );
+			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );
 
 			let c2StopTraversal;
 			if ( c2Intersection === CONTAINED ) {
@@ -278,7 +278,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
+				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );
 
 			} else {
 
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index 2198aa438..e2672ea70 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -185,7 +185,7 @@ export const shapecast = ( function () {
 
 			const offset = OFFSET( nodeIndex32 );
 			const count = COUNT( nodeIndex16 );
-			return intersectsRangeFunc( offset, count, false, depth );
+			return intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );
 
 		} else {
 
@@ -232,7 +232,7 @@ export const shapecast = ( function () {
 
 			}
 
-			const isC1Leaf = IS_LEAF( c1 );
+			const isC1Leaf = IS_LEAF( c1 * 2 );
 			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );
 
 			let c1StopTraversal;
@@ -242,7 +242,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
+				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );
 
 			} else {
 
@@ -270,7 +270,7 @@ export const shapecast = ( function () {
 			box2 = cachedBox2;
 			arrayToBox( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
 
-			const isC2Leaf = IS_LEAF( c2 );
+			const isC2Leaf = IS_LEAF( c2 * 2 );
 			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );
 
 			let c2StopTraversal;
@@ -280,7 +280,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1 );
+				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );
 
 			} else {
 

From 83b39885cb229a59743097c6072703f6238865b9 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 17:20:42 -0800
Subject: [PATCH 127/139] refit update

---
 README.md | 46 ++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 44 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 75057e0b1..a56aeaec5 100644
--- a/README.md
+++ b/README.md
@@ -376,10 +376,52 @@ A generalized cast function that can be used to implement intersection logic for
 ### .refit
 
 ```js
-refit( geometry : BufferGeometry ) : void
+refit(
+	traversedNodeIndices : Array<Number> | Set<Number> = null,
+	endNodeIndices : Array<Number> | Set<Number> = null
+) : void
 ```
 
-Refit the node bounds to the current triangle positions. This is quicker than regenerating a new BVH but will not be optimal after significant changes to the vertices.
+Refit the node bounds to the current triangle positions. This is quicker than regenerating a new BVH but will not be optimal after significant changes to the vertices. `traversedNodeIndices` is a set of node indices (provided by the [shapecast](#shapecast) function) that need to be refit including all internal nodes. `endNodeIndices` is the set of nodes that traversal ended at and that triangles need to be updated for. If neither index set is provided then the whole BVH is updated which is significantly slower than surgically updating the nodes that need to be updated.
+
+Here's how to get the set of indices that need to be refit:
+
+```js
+const traversedNodeIndices = new Set();
+const endNodeIndices = new Set();
+bvh.shapecast(
+
+	mesh,
+	{
+
+		intersectsBounds: ( box, isLeaf, score, depth, nodeIndex ) => {
+
+			if ( /* intersects shape */ ) {
+
+				traversedNodeIndices.add( nodeIndex );
+				return INTERSECTED;
+
+			}
+
+			return NOT_INTERSECTED;
+
+		},
+
+		intersectsRange: ( offset, count, contained, depth, nodeIndex ) => {
+
+			// collect triangles to update
+			endNodeIndices.add( nodeIndex );
+
+		}
+
+	}
+
+);
+
+// update the positions of the triangle vertices
+
+bvh.refit( traversedNodeIndices, endNodeIndices );
+```
 
 ### .getBoundingBox
 

From 0dc0478c04d8f2916e989589614b036583e12a57 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 17:43:39 -0800
Subject: [PATCH 128/139] README update, fix collect triangles brush

---
 README.md                   | 3 ++-
 example/collectTriangles.js | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a56aeaec5..f3cf27d3f 100644
--- a/README.md
+++ b/README.md
@@ -343,7 +343,8 @@ shapecast(
 			triangleOffset : Number,
 			triangleCount : Number
 			contained : Boolean,
-			depth : Number
+			depth : Number,
+			nodeIndex : Number
 		) => Boolean = null,
 
 		intersectsTriangle : (
diff --git a/example/collectTriangles.js b/example/collectTriangles.js
index ab0d71c66..b61c14aad 100644
--- a/example/collectTriangles.js
+++ b/example/collectTriangles.js
@@ -105,6 +105,7 @@ function init() {
 
 		mouse.x = ( e.clientX / window.innerWidth ) * 2 - 1;
 		mouse.y = - ( e.clientY / window.innerHeight ) * 2 + 1;
+		brushActive = true;
 
 	} );
 

From 7b04f039f80bfafcc852369643693ee5adc74f25 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 17:44:23 -0800
Subject: [PATCH 129/139] sculpt example fast refit

---
 example/sculpt.js | 36 +++++++++++++++++++++++++++++++-----
 1 file changed, 31 insertions(+), 5 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index 20032cd2a..baa86caea 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -225,6 +225,7 @@ function init() {
 
 		mouse.x = ( e.clientX / window.innerWidth ) * 2 - 1;
 		mouse.y = - ( e.clientY / window.innerHeight ) * 2 + 1;
+		brushActive = true;
 
 	} );
 
@@ -302,7 +303,14 @@ function init() {
 }
 
 // Run the perform the brush movement
-function performStroke( point, brushObject, brushOnly = false, accumulatedTriangles = new Set(), accumulatedIndices = new Set() ) {
+function performStroke( point, brushObject, brushOnly = false, accumulatedFields = {} ) {
+
+	const {
+		accumulatedTriangles = new Set(),
+		accumulatedIndices = new Set(),
+		accumulatedTraversedNodeIndices = new Set(),
+		accumulatedEndNodeIndices = new Set(),
+	} = accumulatedFields;
 
 	const inverseMatrix = new THREE.Matrix4();
 	inverseMatrix.copy( targetMesh.matrixWorld ).invert();
@@ -324,7 +332,9 @@ function performStroke( point, brushObject, brushOnly = false, accumulatedTriang
 		targetMesh,
 		{
 
-			intersectsBounds: box => {
+			intersectsBounds: ( box, isLeaf, score, depth, nodeIndex ) => {
+
+				accumulatedTraversedNodeIndices.add( nodeIndex );
 
 				const intersects = sphere.intersectsBox( box );
 				const { min, max } = box;
@@ -361,6 +371,12 @@ function performStroke( point, brushObject, brushOnly = false, accumulatedTriang
 
 			},
 
+			intersectsRange: ( offset, count, contained, depth, nodeIndex ) => {
+
+				accumulatedEndNodeIndices.add( nodeIndex );
+
+			},
+
 			intersectsTriangle: ( tri, index, contained ) => {
 
 				const triIndex = index;
@@ -644,6 +660,16 @@ function render() {
 				// refitting of the model
 				const changedTriangles = new Set();
 				const changedIndices = new Set();
+				const traversedNodeIndices = new Set();
+				const endNodeIndices = new Set();
+				const sets = {
+
+					accumulatedTriangles: changedTriangles,
+					accumulatedIndices: changedIndices,
+					accumulatedTraversedNodeIndices: traversedNodeIndices,
+					accumulatedEndNodeIndices: endNodeIndices,
+
+				};
 				while ( castDist > step && mdist > params.size * 200 / hit.distance ) {
 
 					lastMouse.lerp( mouse, percent );
@@ -651,12 +677,12 @@ function render() {
 					castDist -= step;
 					mdist -= mstep;
 
-					performStroke( lastCastPose, brush, false, changedTriangles, changedIndices );
+					performStroke( lastCastPose, brush, false, sets );
 
 					if ( params.symmetrical ) {
 
 						lastCastPose.x *= - 1;
-						performStroke( lastCastPose, symmetryBrush, false, changedTriangles, changedIndices );
+						performStroke( lastCastPose, symmetryBrush, false, sets );
 						lastCastPose.x *= - 1;
 
 					}
@@ -677,7 +703,7 @@ function render() {
 					// so it's up to date for the next one because both of those are used when updating
 					// the model but it's faster to do them here.
 					updateNormals( changedTriangles, changedIndices );
-					targetMesh.geometry.boundsTree.refit();
+					targetMesh.geometry.boundsTree.refit( traversedNodeIndices, endNodeIndices );
 
 					if ( bvhHelper.parent !== null ) {
 

From 5027285e7916471591819966637d2c474b79e17f Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 17:56:24 -0800
Subject: [PATCH 130/139] Fix shapecast

---
 example/sculpt.js | 2 +-
 src/MeshBVH.js    | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/example/sculpt.js b/example/sculpt.js
index baa86caea..14c9cc2e0 100644
--- a/example/sculpt.js
+++ b/example/sculpt.js
@@ -699,7 +699,7 @@ function render() {
 				// refit the bounds and update the normals if we adjusted the mesh
 				if ( stepCount > 0 ) {
 
-					// TODO: refit bounds and normal updates should probably happen after every stroke
+					// refit bounds and normal updates could happen after every stroke
 					// so it's up to date for the next one because both of those are used when updating
 					// the model but it's faster to do them here.
 					updateNormals( changedTriangles, changedIndices );
diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 89f7ea905..37f643254 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -398,9 +398,9 @@ export default class MeshBVH {
 		if ( intersectsRange && intersectsTriangle ) {
 
 			const originalIntersectsRange = intersectsRange;
-			intersectsRange = ( offset, count, contained, depth ) => {
+			intersectsRange = ( offset, count, contained, depth, nodeIndex ) => {
 
-				if ( ! originalIntersectsRange( offset, count, contained, depth ) ) {
+				if ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {
 
 					return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
 

From ba464b8a7d5fe9d495325036d12c2eccf86fff04 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 12 Mar 2021 18:33:35 -0800
Subject: [PATCH 131/139] npm run build

---
 example/bundle/asyncGenerate.4a48c6e8.js      |   8 +-
 example/bundle/asyncGenerate.html             |   3 +-
 example/bundle/characterMovement.725f956b.js  |  10 +-
 example/bundle/collectTriangles.9c45819a.js   |  10 +-
 example/bundle/collectTriangles.html          |   3 +-
 example/bundle/distancecast.4107d8f2.js       |   8 +-
 example/bundle/distancecast.html              |   3 +-
 .../bundle/generateAsync.worker.13d14241.js   |   8 +-
 example/bundle/physics.50b811f1.js            |  10 +-
 example/bundle/randomSampleDebug.32ad2b43.js  |   8 +-
 example/bundle/raycast.88074831.js            |   8 +-
 example/bundle/raycast.html                   |   3 +-
 example/bundle/sculpt.493e9c78.js             |  10 +-
 example/bundle/selection.383a520f.js          |  10 +-
 example/bundle/shapecast.b93a7fe2.js          |   8 +-
 src/MeshBVH.js                                |   1 -
 umd/index.js                                  | 387 ++++++++++++------
 umd/index.js.map                              |   2 +-
 18 files changed, 316 insertions(+), 184 deletions(-)

diff --git a/example/bundle/asyncGenerate.4a48c6e8.js b/example/bundle/asyncGenerate.4a48c6e8.js
index abf786eaf..5cf598b64 100644
--- a/example/bundle/asyncGenerate.4a48c6e8.js
+++ b/example/bundle/asyncGenerate.4a48c6e8.js
@@ -28,11 +28,11 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
-"use strict";function e(e,x,o){o.min.x=x[e],o.min.y=x[e+1],o.min.z=x[e+2],o.max.x=x[e+3],o.max.y=x[e+4],o.max.z=x[e+5]}Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=e;
-},{}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
+},{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=p[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=p[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=p[r+6]):(T=p[r+6],w=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[w+h]:M>=s[w+h+3])return A}var m=f(w,s,a,u)?c(w,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:i;function T(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var h=2*a,b=g,U=y,A=B;if(65535===U[h+15])return x(A[a+6],U[h+14],!1,p,a);var M,m,j,q,O=a+8,N=A[a+6],C=O,S=N;if(c&&(j=f,q=d,(0,t.arrayToBox)(C,b,j),(0,t.arrayToBox)(S,b,q),M=c(j),(m=c(q))<M)){C=N,S=O;var I=M;M=m,m=I,j=q}j||(j=f,(0,t.arrayToBox)(C,b,j));var D,E=l(j,65535===U[2*C+15],M,p+1,C);if(E===o.CONTAINED){var F=T(C);D=x(F,w(C)-F,!0,p+1,C)}else D=E&&r(C,s,u,l,x,c,p+1,v,f,d);if(D)return!0;q=d,(0,t.arrayToBox)(S,b,q);var G,_=l(q,65535===U[2*S+15],m,p+1,S);if(_===o.CONTAINED){var z=T(S);G=x(z,w(S)-z,!0,p+1,S)}else G=_&&r(S,s,u,l,x,c,p+1,v,f,d);return!!G}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,w,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return a=e.done,e},e:function(e){u=!0,i=e},f:function(){try{a||null==r.return||r.return()}finally{if(u)throw i}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function v(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function y(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function d(e,t,r){return t&&y(e.prototype,t),r&&y(e,r),e}var h=Symbol("skip tree generation"),p=new n.OrientedBox,g=new e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),r=require("./Constants.js"),t=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,r){var t;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(t=l(e))||r&&e&&"number"==typeof e.length){t&&(e=t);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){t=e[Symbol.iterator]()},n:function(){var e=t.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==t.return||t.return()}finally{if(s)throw a}}}}function l(e,r){if(e){if("string"==typeof e)return c(e,r);var t=Object.prototype.toString.call(e).slice(8,-1);return"Object"===t&&e.constructor&&(t=e.constructor.name),"Map"===t||"Set"===t?Array.from(e):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?c(e,r):void 0}}function c(e,r){(null==r||r>e.length)&&(r=e.length);for(var t=0,n=new Array(r);t<r;t++)n[t]=e[t];return n}function f(e,r,t){return r in e?Object.defineProperty(e,r,{value:t,enumerable:!0,configurable:!0,writable:!0}):e[r]=t,e}function d(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function v(e,r){for(var t=0;t<r.length;t++){var n=r[t];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,r,t){return r&&v(e.prototype,r),t&&v(e,t),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,B=new i.SeparatingAxisTriangle,b=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:r.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,t.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,r){var t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"dbR2":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.GenerateMeshBVHWorker=void 0;var e=require("three"),r=n(require("../MeshBVH.js"));function n(e){return e&&e.__esModule?e:{default:e}}function t(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function i(e,r){for(var n=0;n<r.length;n++){var t=r[n];t.enumerable=t.enumerable||!1,t.configurable=!0,"value"in t&&(t.writable=!0),Object.defineProperty(e,t.key,t)}}function o(e,r,n){return r&&i(e.prototype,r),n&&i(e,n),e}var a=function(){function n(){t(this,n),this.running=!1,this.worker=new Worker("generateAsync.worker.13d14241.js")}return o(n,[{key:"generate",value:function(n){var t=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(this.running)throw new Error("GenerateMeshBVHWorker: Already running job.");var o=this.worker;return this.running=!0,new Promise(function(a,u){o.onmessage=function(s){t.running=!1,o.onmessage=null;var f=s.data,l=f.serialized,d=f.position,c=f.error;if(c)u(new Error(c));else{var h=r.default.deserialize(l,n,!1),g=Object.assign({setBoundingBox:!0},i);n.attributes.position.array=d,n.index&&(n.index.array=l.index),g.setBoundingBox&&(n.boundingBox=h.getBoundingBox(new e.Box3)),a(h)}};var s=n.index?n.index.array:null,f=n.attributes.position.array;if(f.isInterleavedBufferAttribute||s&&s.isInterleavedBufferAttribute)throw new Error("GenerateMeshBVHWorker: InterleavedBufferAttribute are not supported for the geometry attributes.");var l=[f];s&&l.push(s),o.postMessage({index:s,position:f,options:i},l.map(function(e){return e.buffer}))})}},{key:"terminate",value:function(){this.worker.terminate()}}]),n}();exports.GenerateMeshBVHWorker=a;
 },{"three":"dKqR","../MeshBVH.js":"nIyY","./generateAsync.worker.js":[["generateAsync.worker.13d14241.js","HHJX"],"HHJX"]}],"jNwr":[function(require,module,exports) {
diff --git a/example/bundle/asyncGenerate.html b/example/bundle/asyncGenerate.html
index c05dcda16..079691e54 100644
--- a/example/bundle/asyncGenerate.html
+++ b/example/bundle/asyncGenerate.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/characterMovement.725f956b.js b/example/bundle/characterMovement.725f956b.js
index a680b2b55..731011ac5 100644
--- a/example/bundle/characterMovement.725f956b.js
+++ b/example/bundle/characterMovement.725f956b.js
@@ -36,11 +36,11 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),r=require("./Constants.js"),t=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,r){var t;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(t=l(e))||r&&e&&"number"==typeof e.length){t&&(e=t);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){t=e[Symbol.iterator]()},n:function(){var e=t.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==t.return||t.return()}finally{if(s)throw a}}}}function l(e,r){if(e){if("string"==typeof e)return c(e,r);var t=Object.prototype.toString.call(e).slice(8,-1);return"Object"===t&&e.constructor&&(t=e.constructor.name),"Map"===t||"Set"===t?Array.from(e):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?c(e,r):void 0}}function c(e,r){(null==r||r>e.length)&&(r=e.length);for(var t=0,n=new Array(r);t<r;t++)n[t]=e[t];return n}function f(e,r,t){return r in e?Object.defineProperty(e,r,{value:t,enumerable:!0,configurable:!0,writable:!0}):e[r]=t,e}function d(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function v(e,r){for(var t=0;t<r.length;t++){var n=r[t];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,r,t){return r&&v(e.prototype,r),t&&v(e,t),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,B=new i.SeparatingAxisTriangle,b=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:r.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,t.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,r){var t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
@@ -50,5 +50,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
 },{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"GkUD":[function(require,module,exports) {
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d=y.addFolder("Player");d.add(b,"physicsSteps",0,30,1),d.add(b,"gravity",-100,100,.01).onChange(function(e){b.gravity=parseFloat(e)}),d.add(b,"playerSpeed",1,20),d.open(),y.add(b,"reset"),y.open(),window.addEventListener("resize",function(){u.aspect=window.innerWidth/window.innerHeight,u.updateProjectionMatrix(),c.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("keydown",function(e){switch(e.code){case"KeyW":V=!0;break;case"KeyS":P=!0;break;case"KeyD":B=!0;break;case"KeyA":j=!0;break;case"Space":M&&(C.y=10)}}),window.addEventListener("keyup",function(e){switch(e.code){case"KeyW":V=!1;break;case"KeyS":P=!1;break;case"KeyD":B=!1;break;case"KeyA":j=!1}})}function O(){(new a.GLTFLoader).load("../models/dungeon_low_poly_game_level_challenge/scene.gltf",function(t){var a=t.scene;a.scale.setScalar(.01);var r=new e.Box3;r.setFromObject(a),r.getCenter(a.position).negate(),a.updateMatrixWorld(!0);var n={};a.traverse(function(e){if(!(/Boss/.test(e.name)||/Enemie/.test(e.name)||/Shield/.test(e.name)||/Sword/.test(e.name)||/Character/.test(e.name)||/Gate/.test(e.name)||/Cube/.test(e.name)||e.material&&1===e.material.color.r)&&e.isMesh){var t=e.material.color.getHex();n[t]=n[t]||[],n[t].push(e)}}),f=new e.Group;var o=function(t){var a=n[t],r=[];if(a.forEach(function(e){if(0!==e.material.emissive.r)f.attach(e);else{var t=e.geometry.clone();t.applyMatrix4(e.matrixWorld),r.push(t)}}),r.length){var o=i.BufferGeometryUtils.mergeBufferGeometries(r),s=new e.Mesh(o,new e.MeshStandardMaterial({color:parseInt(t),shadowSide:2}));s.castShadow=!0,s.receiveShadow=!0,s.material.shadowSide=2,f.add(s)}};for(var d in n)o(d);var l=[];f.updateMatrixWorld(!0),f.traverse(function(e){if(e.geometry){var t=e.geometry.clone();for(var a in t.applyMatrix4(e.matrixWorld),t.attributes)"position"!==a&&t.deleteAttribute(a);l.push(t)}});var p=i.BufferGeometryUtils.mergeBufferGeometries(l,!1);p.boundsTree=new s.MeshBVH(p,{lazyGeneration:!1}),(g=new e.Mesh(p)).material.wireframe=!0,g.material.opacity=.5,g.material.transparent=!0,v=new s.MeshBVHVisualizer(g,b.visualizeDepth),m.add(v),m.add(g),m.add(f)})}function H(){C.set(0,0,0),S.position.set(15.75,-3,30),u.position.sub(x.target),x.target.copy(S.position),u.position.add(S.position),x.update()}function q(e){window.playerVelocity=C,C.y+=e*b.gravity,S.position.addScaledVector(C,e);var t=x.getAzimuthalAngle();V&&(A.set(0,0,-1).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),P&&(A.set(0,0,1).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),j&&(A.set(-1,0,0).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),B&&(A.set(1,0,0).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),S.updateMatrixWorld();var a=S.capsuleInfo;G.makeEmpty(),k.copy(g.matrixWorld).invert(),D.copy(a.segment),D.start.applyMatrix4(S.matrixWorld).applyMatrix4(k),D.end.applyMatrix4(S.matrixWorld).applyMatrix4(k),G.expandByPoint(D.start),G.expandByPoint(D.end),G.min.addScalar(-a.radius),G.max.addScalar(a.radius),g.geometry.boundsTree.shapecast(g,function(e){return e.intersectsBox(G)},function(e){var t=A,r=z,i=e.closestPointToSegment(D,t,r);if(i<a.radius){var n=a.radius-i,o=r.sub(t).normalize();D.start.addScaledVector(o,n),D.end.addScaledVector(o,n)}});var r=A;r.copy(D.start).applyMatrix4(g.matrixWorld);var i=z;i.subVectors(r,S.position),S.position.copy(r),(M=i.y>Math.abs(e*C.y*.25))?C.set(0,0,0):(i.normalize(),C.addScaledVector(i,-i.dot(C))),u.position.sub(x.target),x.target.copy(S.position),u.position.add(S.position),S.position.y<-25&&H()}function F(){h.update(),requestAnimationFrame(F);var e=Math.min(w.getDelta(),.1);if(b.firstPerson?(x.maxPolarAngle=Math.PI,x.minDistance=1e-4,x.maxDistance=1e-4):(x.maxPolarAngle=Math.PI/2,x.minDistance=1,x.maxDistance=20),g){g.visible=b.displayCollider,v.visible=b.displayBVH;for(var t=b.physicsSteps,a=0;a<t;a++)q(e/t)}x.update(),c.render(m,u)}L(),F();
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c,u,m,w,y,h,f,g,v,S,x,b={firstPerson:!1,displayCollider:!1,displayBVH:!1,visualizeDepth:10,gravity:-30,playerSpeed:10,physicsSteps:5,reset:H},M=!1,V=!1,P=!1,B=!1,j=!1,C=new e.Vector3,W=new e.Vector3(0,1,0),A=new e.Vector3,z=new e.Vector3,G=new e.Box3,k=new e.Matrix4,D=new e.Line3;function L(){(c=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),c.setSize(window.innerWidth,window.innerHeight),c.setClearColor(1251612,1),c.shadowMap.enabled=!0,c.shadowMap.type=e.PCFSoftShadowMap,c.gammaOutput=!0,document.body.appendChild(c.domElement),(m=new e.Scene).fog=new e.Fog(1251612,20,70);var a=new e.DirectionalLight(16777215,1);a.position.set(1,1.5,1).multiplyScalar(50),a.shadow.mapSize.setScalar(2048),a.shadow.bias=-1e-4,a.shadow.normalBias=.05,a.castShadow=!0;var i=a.shadow.camera;i.bottom=i.left=-30,i.top=30,i.right=45,m.add(a),m.add(new e.HemisphereLight(16777215,2241348,.4)),(u=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(10,10,-10),u.far=100,u.updateProjectionMatrix(),window.camera=u,w=new e.Clock,x=new r.OrbitControls(u,c.domElement),h=new n.default,document.body.appendChild(h.dom),O(),(S=new e.Mesh(new t.RoundedBoxGeometry(1,2,1,10,.5),new e.MeshStandardMaterial)).geometry.translate(0,-.5,0),S.capsuleInfo={radius:.5,segment:new e.Line3(new e.Vector3,new e.Vector3(0,-1,0))},S.castShadow=!0,S.receiveShadow=!0,S.material.shadowSide=2,m.add(S),H(),(y=new o.GUI).add(b,"firstPerson").onChange(function(e){e||u.position.sub(x.target).normalize().multiplyScalar(10).add(x.target)});var s=y.addFolder("Visualization");s.add(b,"displayCollider"),s.add(b,"displayBVH"),s.add(b,"visualizeDepth",1,20,1).onChange(function(e){v.depth=e,v.update()}),s.open();var d=y.addFolder("Player");d.add(b,"physicsSteps",0,30,1),d.add(b,"gravity",-100,100,.01).onChange(function(e){b.gravity=parseFloat(e)}),d.add(b,"playerSpeed",1,20),d.open(),y.add(b,"reset"),y.open(),window.addEventListener("resize",function(){u.aspect=window.innerWidth/window.innerHeight,u.updateProjectionMatrix(),c.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("keydown",function(e){switch(e.code){case"KeyW":V=!0;break;case"KeyS":P=!0;break;case"KeyD":j=!0;break;case"KeyA":B=!0;break;case"Space":M&&(C.y=10)}}),window.addEventListener("keyup",function(e){switch(e.code){case"KeyW":V=!1;break;case"KeyS":P=!1;break;case"KeyD":j=!1;break;case"KeyA":B=!1}})}function O(){(new a.GLTFLoader).load("../models/dungeon_low_poly_game_level_challenge/scene.gltf",function(t){var a=t.scene;a.scale.setScalar(.01);var r=new e.Box3;r.setFromObject(a),r.getCenter(a.position).negate(),a.updateMatrixWorld(!0);var n={};a.traverse(function(e){if(!(/Boss/.test(e.name)||/Enemie/.test(e.name)||/Shield/.test(e.name)||/Sword/.test(e.name)||/Character/.test(e.name)||/Gate/.test(e.name)||/Cube/.test(e.name)||e.material&&1===e.material.color.r)&&e.isMesh){var t=e.material.color.getHex();n[t]=n[t]||[],n[t].push(e)}}),f=new e.Group;var o=function(t){var a=n[t],r=[];if(a.forEach(function(e){if(0!==e.material.emissive.r)f.attach(e);else{var t=e.geometry.clone();t.applyMatrix4(e.matrixWorld),r.push(t)}}),r.length){var o=i.BufferGeometryUtils.mergeBufferGeometries(r),s=new e.Mesh(o,new e.MeshStandardMaterial({color:parseInt(t),shadowSide:2}));s.castShadow=!0,s.receiveShadow=!0,s.material.shadowSide=2,f.add(s)}};for(var d in n)o(d);var l=[];f.updateMatrixWorld(!0),f.traverse(function(e){if(e.geometry){var t=e.geometry.clone();for(var a in t.applyMatrix4(e.matrixWorld),t.attributes)"position"!==a&&t.deleteAttribute(a);l.push(t)}});var p=i.BufferGeometryUtils.mergeBufferGeometries(l,!1);p.boundsTree=new s.MeshBVH(p,{lazyGeneration:!1}),(g=new e.Mesh(p)).material.wireframe=!0,g.material.opacity=.5,g.material.transparent=!0,v=new s.MeshBVHVisualizer(g,b.visualizeDepth),m.add(v),m.add(g),m.add(f)})}function H(){C.set(0,0,0),S.position.set(15.75,-3,30),u.position.sub(x.target),x.target.copy(S.position),u.position.add(S.position),x.update()}function q(e){window.playerVelocity=C,C.y+=e*b.gravity,S.position.addScaledVector(C,e);var t=x.getAzimuthalAngle();V&&(A.set(0,0,-1).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),P&&(A.set(0,0,1).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),B&&(A.set(-1,0,0).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),j&&(A.set(1,0,0).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),S.updateMatrixWorld();var a=S.capsuleInfo;G.makeEmpty(),k.copy(g.matrixWorld).invert(),D.copy(a.segment),D.start.applyMatrix4(S.matrixWorld).applyMatrix4(k),D.end.applyMatrix4(S.matrixWorld).applyMatrix4(k),G.expandByPoint(D.start),G.expandByPoint(D.end),G.min.addScalar(-a.radius),G.max.addScalar(a.radius),g.geometry.boundsTree.shapecast(g,{intersectsBounds:function(e){return e.intersectsBox(G)},intersectsTriangle:function(e){var t=A,r=z,i=e.closestPointToSegment(D,t,r);if(i<a.radius){var n=a.radius-i,o=r.sub(t).normalize();D.start.addScaledVector(o,n),D.end.addScaledVector(o,n)}}});var r=A;r.copy(D.start).applyMatrix4(g.matrixWorld);var i=z;i.subVectors(r,S.position),S.position.copy(r),(M=i.y>Math.abs(e*C.y*.25))?C.set(0,0,0):(i.normalize(),C.addScaledVector(i,-i.dot(C))),u.position.sub(x.target),x.target.copy(S.position),u.position.add(S.position),S.position.y<-25&&H()}function F(){h.update(),requestAnimationFrame(F);var e=Math.min(w.getDelta(),.1);if(b.firstPerson?(x.maxPolarAngle=Math.PI,x.minDistance=1e-4,x.maxDistance=1e-4):(x.maxPolarAngle=Math.PI/2,x.minDistance=1,x.maxDistance=20),g){g.visible=b.displayCollider,v.visible=b.displayBVH;for(var t=b.physicsSteps,a=0;a<t;a++)q(e/t)}x.update(),c.render(m,u)}L(),F();
 },{"three":"dKqR","three/examples/jsm/geometries/RoundedBoxGeometry.js":"lYZT","three/examples/jsm/loaders/GLTFLoader.js":"O6i0","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/utils/BufferGeometryUtils.js":"Jcll","stats.js":"dnrf","dat.gui":"KkZG","../src/index.js":"uBxZ"}]},{},["GkUD"], null)
\ No newline at end of file
diff --git a/example/bundle/collectTriangles.9c45819a.js b/example/bundle/collectTriangles.9c45819a.js
index 8133adea0..ce5de85ae 100644
--- a/example/bundle/collectTriangles.9c45819a.js
+++ b/example/bundle/collectTriangles.9c45819a.js
@@ -555,11 +555,11 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
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l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),r=require("./Constants.js"),t=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,r){var t;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(t=l(e))||r&&e&&"number"==typeof e.length){t&&(e=t);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){t=e[Symbol.iterator]()},n:function(){var e=t.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==t.return||t.return()}finally{if(s)throw a}}}}function l(e,r){if(e){if("string"==typeof e)return c(e,r);var t=Object.prototype.toString.call(e).slice(8,-1);return"Object"===t&&e.constructor&&(t=e.constructor.name),"Map"===t||"Set"===t?Array.from(e):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?c(e,r):void 0}}function c(e,r){(null==r||r>e.length)&&(r=e.length);for(var t=0,n=new Array(r);t<r;t++)n[t]=e[t];return n}function f(e,r,t){return r in e?Object.defineProperty(e,r,{value:t,enumerable:!0,configurable:!0,writable:!0}):e[r]=t,e}function d(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function v(e,r){for(var t=0;t<r.length;t++){var n=r[t];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,r,t){return r&&v(e.prototype,r),t&&v(e,t),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,B=new i.SeparatingAxisTriangle,b=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:r.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,t.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,r){var t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
@@ -569,5 +569,5 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
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diff --git a/example/bundle/collectTriangles.html b/example/bundle/collectTriangles.html
index fad8efae5..3d754f1b8 100644
--- a/example/bundle/collectTriangles.html
+++ b/example/bundle/collectTriangles.html
@@ -1,2 +1 @@
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-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="collectTriangles.9c45819a.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/distancecast.4107d8f2.js b/example/bundle/distancecast.4107d8f2.js
index 3e3b36fdc..6fa950ca8 100644
--- a/example/bundle/distancecast.4107d8f2.js
+++ b/example/bundle/distancecast.4107d8f2.js
@@ -561,11 +561,11 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
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t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/distancecast.html b/example/bundle/distancecast.html
index defeeaae8..06205f5d6 100644
--- a/example/bundle/distancecast.html
+++ b/example/bundle/distancecast.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/generateAsync.worker.13d14241.js b/example/bundle/generateAsync.worker.13d14241.js
index 9fc13a509..43d4657df 100644
--- a/example/bundle/generateAsync.worker.13d14241.js
+++ b/example/bundle/generateAsync.worker.13d14241.js
@@ -23,11 +23,11 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
-"use strict";function e(e,x,o){o.min.x=x[e],o.min.y=x[e+1],o.min.z=x[e+2],o.max.x=x[e+3],o.max.y=x[e+4],o.max.z=x[e+5]}Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=e;
-},{}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
+},{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
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t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"HHJX":[function(require,module,exports) {
 var global = arguments[3];
 var e=arguments[3],r=require("three"),t=i(require("../MeshBVH.js"));function i(e){return e&&e.__esModule?e:{default:e}}e.onmessage=function(i){var n=i.data,s=n.index,u=n.position,a=n.options;try{var o=new r.BufferGeometry;o.setAttribute("position",new r.BufferAttribute(u,3,!1)),s&&o.setIndex(new r.BufferAttribute(s,1,!1)),a.lazyGeneration=!1;var f=new t.default(o,a),l=t.default.serialize(f,o,!1);e.postMessage({error:null,serialized:l,position:u},[l.index.buffer,u.buffer])}catch(d){e.postMessage({error:d,serialized:null})}};
diff --git a/example/bundle/physics.50b811f1.js b/example/bundle/physics.50b811f1.js
index 744242eb2..a0eb13e5c 100644
--- a/example/bundle/physics.50b811f1.js
+++ b/example/bundle/physics.50b811f1.js
@@ -34,11 +34,11 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
-"use strict";function e(e,x,o){o.min.x=x[e],o.min.y=x[e+1],o.min.z=x[e+2],o.max.x=x[e+3],o.max.y=x[e+4],o.max.z=x[e+5]}Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=e;
-},{}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
+},{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
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t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
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@@ -48,5 +48,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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-"use strict";var e=c(require("three")),t=require("three/examples/jsm/loaders/GLTFLoader.js"),a=require("three/examples/jsm/controls/OrbitControls.js"),r=require("three/examples/jsm/utils/BufferGeometryUtils.js"),i=d(require("stats.js")),o=require("dat.gui"),n=require("../src/index.js");function d(e){return e&&e.__esModule?e:{default:e}}function s(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return s=function(){return e},e}function c(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var t=s();if(t&&t.has(e))return t.get(e);var a={},r=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var i in e)if(Object.prototype.hasOwnProperty.call(e,i)){var o=r?Object.getOwnPropertyDescriptor(e,i):null;o&&(o.get||o.set)?Object.defineProperty(a,i,o):a[i]=e[i]}return a.default=e,t&&t.set(e,a),a}var l,p,u,h,m,v,f,w,y,S={displayCollider:!1,displayBVH:!1,visualizeDepth:10,gravity:-9.8,physicsSteps:5,simulationSpeed:1,sphereSize:1,pause:!1,step:function(){for(var e=S.physicsSteps,t=0;t<e;t++)O(.016/e)},explode:H,reset:G},M=[],g=[],V=new e.Sphere,b=new e.Vector3,x=new e.Vector3,P=new e.Vector3(0,0,1);function j(){(l=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),l.setSize(window.innerWidth,window.innerHeight),l.setClearColor(1251612,1),l.shadowMap.enabled=!0,l.shadowMap.type=e.PCFSoftShadowMap,l.gammaOutput=!0,document.body.appendChild(l.domElement),(u=new e.Scene).fog=new e.Fog(1251612,30,70);var t=new e.DirectionalLight(11193599,1);t.position.set(1,1.5,1).multiplyScalar(50),t.intensity=.25;var r=t.shadow.camera;r.bottom=r.left=-10,r.top=r.right=10,u.add(t),u.add(new e.HemisphereLight(4491519,2241348,.3)),(p=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(10,10,-10),p.far=100,p.updateProjectionMatrix(),window.camera=p,h=new e.Clock,new a.OrbitControls(p,l.domElement),v=new i.default,document.body.appendChild(v.dom),z();var n=(m=new o.GUI).addFolder("Visualization");n.add(S,"displayCollider"),n.add(S,"displayBVH"),n.add(S,"visualizeDepth",1,20,1).onChange(function(e){y.depth=e,y.update()}),n.open();var d=m.addFolder("Physics");d.add(S,"physicsSteps",0,30,1),d.add(S,"gravity",-100,100,.01).onChange(function(e){S.gravity=parseFloat(e)}),d.add(S,"simulationSpeed",0,5,.01),d.add(S,"sphereSize",.2,5,.1),d.add(S,"pause"),d.add(S,"step"),d.open(),m.add(S,"explode"),m.add(S,"reset"),m.open();var s=new e.Raycaster,c=new e.Vector2,f=0,w=0;l.domElement.addEventListener("pointerdown",function(e){f=e.clientX,w=e.clientY}),l.domElement.addEventListener("pointerup",function(e){if(!(Math.abs(e.clientX-f)+Math.abs(e.clientY-w)>2)){c.x=e.clientX/window.innerWidth*2-1,c.y=-e.clientY/window.innerHeight*2+1,s.setFromCamera(c,p);var t=L();t.position.copy(p.position).addScaledVector(s.ray.direction,3),t.velocity.set(Math.random()-.5,Math.random()-.5,Math.random()-.5).addScaledVector(s.ray.direction,10*Math.random()+15).multiplyScalar(.5)}}),window.addEventListener("resize",function(){p.aspect=window.innerWidth/window.innerHeight,p.updateProjectionMatrix(),l.setSize(window.innerWidth,window.innerHeight)},!1),window.createSphere=L}function z(){(new t.GLTFLoader).load("../models/low_poly_environment_jungle_scene/scene.gltf",function(t){(f=t.scene).scale.setScalar(.05);var a=new e.PointLight(65535);a.distance=7,a.position.set(-100,-40,100),f.add(a);var i=new e.PointLight(16768358);i.distance=15,i.intensity=5,i.position.set(80,80,135),i.shadow.normalBias=.01,i.shadow.bias=-.001,i.shadow.mapSize.setScalar(1024),i.castShadow=!0,f.add(i);var o=[];f.updateMatrixWorld(!0),f.traverse(function(e){if(e.geometry){var t=e.geometry.clone();for(var a in t.applyMatrix4(e.matrixWorld),t.attributes)"position"!==a&&t.deleteAttribute(a);o.push(t)}});var d=r.BufferGeometryUtils.mergeBufferGeometries(o,!1);d.boundsTree=new n.MeshBVH(d,{lazyGeneration:!1}),(w=new e.Mesh(d)).material.wireframe=!0,w.material.opacity=.5,w.material.transparent=!0,y=new n.MeshBVHVisualizer(w,S.visualizeDepth),u.add(y),u.add(w),u.add(f),f.traverse(function(e){e.material&&(e.castShadow=!0,e.receiveShadow=!0,e.material.shadowSide=2)})})}function C(t,a,r,i,o){var n=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0;if(!(o<Math.max(Math.abs(.04*S.gravity),5))){var d=2*Math.max(a?Math.max(t.collider.radius,a.collider.radius):t.collider.radius,.4),s=new e.Mesh(new e.RingBufferGeometry(0,1,30),new e.MeshBasicMaterial({side:2,transparent:!0,depthWrite:!1}));s.lifetime=0,s.maxLifetime=.4,s.maxScale=d*Math.max(Math.sin(Math.min(o/200,1)*Math.PI/2),.35),s.position.copy(r).addScaledVector(i,n),s.quaternion.setFromUnitVectors(P,i),u.add(s),g.push(s)}}function L(){var t=new e.Color(16777215),a=new e.Color(1251612).lerp(t,.5*Math.random()+.5).convertSRGBToLinear(),r=new e.Mesh(new e.SphereBufferGeometry(1,20,20),new e.MeshStandardMaterial({color:a}));u.add(r),r.castShadow=!0,r.receiveShadow=!0,r.material.shadowSide=2;var i=.5*S.sphereSize*(.2*Math.random()+.6);return r.scale.setScalar(i),r.collider=new e.Sphere(r.position,i),r.velocity=new e.Vector3(0,0,0),r.mass=Math.pow(i,3)*Math.PI*4/3,M.push(r),r}function B(t){for(var a=w.geometry.boundsTree,r=0,i=M.length;r<i;r++){var o=M[r],n=o.collider;if(o.velocity.y+=S.gravity*t,n.center.addScaledVector(o.velocity,t),n.center.y<-80)M.splice(r,1),r--,i--,o.material.dispose(),o.geometry.dispose(),u.remove(o);else{V.copy(o.collider);var d=!1;if(a.shapecast(w,function(e){return e.intersectsSphere(V)},function(e){e.closestPointToPoint(V.center,b),b.sub(V.center);var t=b.length();if(t<V.radius){var a=t-V.radius;b.multiplyScalar(1/t),V.center.addScaledVector(b,a),d=!0}},function(e){return e.distanceToPoint(V.center)-V.radius}),d){b.subVectors(V.center,n.center).normalize(),o.velocity.reflect(b);var s=o.velocity.dot(b);o.velocity.addScaledVector(b,.5*-s),o.velocity.multiplyScalar(Math.max(1-t,0)),n.center.copy(V.center),x.copy(V.center).addScaledVector(b,-V.radius),C(o,null,x,b,s,.05)}}}for(var c=0,l=M.length;c<l;c++){for(var p=M[c],h=p.collider,m=c+1;m<l;m++){var v=M[m],f=v.collider;b.subVectors(h.center,f.center);var y=b.length()-(h.radius+f.radius);if(y<0){b.normalize();var g=p.velocity.dot(b),P=v.velocity.dot(b),j=Math.max(g,.2),z=Math.max(P,.2),L=j+z,B=j/L,G=z/L;h.center.addScaledVector(b,-B*y),f.center.addScaledVector(b,G*y);var H=new e.Vector3;H.addScaledVector(b,-g).addScaledVector(b,P);var O=H.length(),W=p.mass,E=v.mass,F=void 0,q=void 0;H.dot(p.velocity)>H.dot(v.velocity)?(F=.5*O*(W-E)/(W+E),q=.5*O*2*W/(W+E),F-=O):(F=.5*O*2*E/(W+E),q=.5*O*(E-W)/(W+E),q-=O),H.normalize(),p.velocity.addScaledVector(H,F),v.velocity.addScaledVector(H,q),x.copy(h.center).addScaledVector(b,-h.radius),C(p,v,x,b,O,0)}}p.position.copy(h.center)}}function G(){M.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),M.length=0,g.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),g.length=0}function H(){var t=new e.Vector3;M.forEach(function(e){t.copy(e.position),t.y+=10,t.normalize(),e.velocity.addScaledVector(t,120)})}function O(e){if(w)for(var t=S.physicsSteps,a=0;a<t;a++)B(e/t);for(var r=0,i=g.length;r<i;r++){var o=g[r];o.lifetime+=e;var n=o.lifetime/o.maxLifetime,d=Math.sin(4.5*n*Math.PI/4);d=1-Math.pow(1-d,2),o.scale.setScalar(d*o.maxScale),o.material.opacity=1-Math.sin(2*n*Math.PI/4),n>=1&&(g.splice(r,1),o.parent.remove(o),o.geometry.dispose(),o.material.dispose(),r--,i--)}}function W(){v.update(),requestAnimationFrame(W);var e=Math.min(h.getDelta(),.1);w&&(w.visible=S.displayCollider,y.visible=S.displayBVH,S.pause||O(S.simulationSpeed*e)),l.render(u,p)}j(),W();
+"use strict";var e=c(require("three")),t=require("three/examples/jsm/loaders/GLTFLoader.js"),a=require("three/examples/jsm/controls/OrbitControls.js"),r=require("three/examples/jsm/utils/BufferGeometryUtils.js"),i=d(require("stats.js")),o=require("dat.gui"),n=require("../src/index.js");function d(e){return e&&e.__esModule?e:{default:e}}function s(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return s=function(){return e},e}function c(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var t=s();if(t&&t.has(e))return t.get(e);var a={},r=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var i in e)if(Object.prototype.hasOwnProperty.call(e,i)){var o=r?Object.getOwnPropertyDescriptor(e,i):null;o&&(o.get||o.set)?Object.defineProperty(a,i,o):a[i]=e[i]}return a.default=e,t&&t.set(e,a),a}var l,p,u,h,m,v,f,w,y,S={displayCollider:!1,displayBVH:!1,visualizeDepth:10,gravity:-9.8,physicsSteps:5,simulationSpeed:1,sphereSize:1,pause:!1,step:function(){for(var e=S.physicsSteps,t=0;t<e;t++)H(.016/e)},explode:G,reset:O},g=[],M=[],V=new e.Sphere,b=new e.Vector3,x=new e.Vector3,P=new e.Vector3(0,0,1);function j(){(l=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),l.setSize(window.innerWidth,window.innerHeight),l.setClearColor(1251612,1),l.shadowMap.enabled=!0,l.shadowMap.type=e.PCFSoftShadowMap,l.gammaOutput=!0,document.body.appendChild(l.domElement),(u=new e.Scene).fog=new e.Fog(1251612,30,70);var t=new e.DirectionalLight(11193599,1);t.position.set(1,1.5,1).multiplyScalar(50),t.intensity=.25;var r=t.shadow.camera;r.bottom=r.left=-10,r.top=r.right=10,u.add(t),u.add(new e.HemisphereLight(4491519,2241348,.3)),(p=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(10,10,-10),p.far=100,p.updateProjectionMatrix(),window.camera=p,h=new e.Clock,new a.OrbitControls(p,l.domElement),v=new i.default,document.body.appendChild(v.dom),z();var n=(m=new o.GUI).addFolder("Visualization");n.add(S,"displayCollider"),n.add(S,"displayBVH"),n.add(S,"visualizeDepth",1,20,1).onChange(function(e){y.depth=e,y.update()}),n.open();var d=m.addFolder("Physics");d.add(S,"physicsSteps",0,30,1),d.add(S,"gravity",-100,100,.01).onChange(function(e){S.gravity=parseFloat(e)}),d.add(S,"simulationSpeed",0,5,.01),d.add(S,"sphereSize",.2,5,.1),d.add(S,"pause"),d.add(S,"step"),d.open(),m.add(S,"explode"),m.add(S,"reset"),m.open();var s=new e.Raycaster,c=new e.Vector2,f=0,w=0;l.domElement.addEventListener("pointerdown",function(e){f=e.clientX,w=e.clientY}),l.domElement.addEventListener("pointerup",function(e){if(!(Math.abs(e.clientX-f)+Math.abs(e.clientY-w)>2)){c.x=e.clientX/window.innerWidth*2-1,c.y=-e.clientY/window.innerHeight*2+1,s.setFromCamera(c,p);var t=B();t.position.copy(p.position).addScaledVector(s.ray.direction,3),t.velocity.set(Math.random()-.5,Math.random()-.5,Math.random()-.5).addScaledVector(s.ray.direction,10*Math.random()+15).multiplyScalar(.5)}}),window.addEventListener("resize",function(){p.aspect=window.innerWidth/window.innerHeight,p.updateProjectionMatrix(),l.setSize(window.innerWidth,window.innerHeight)},!1),window.createSphere=B}function z(){(new t.GLTFLoader).load("../models/low_poly_environment_jungle_scene/scene.gltf",function(t){(f=t.scene).scale.setScalar(.05);var a=new e.PointLight(65535);a.distance=7,a.position.set(-100,-40,100),f.add(a);var i=new e.PointLight(16768358);i.distance=15,i.intensity=5,i.position.set(80,80,135),i.shadow.normalBias=.01,i.shadow.bias=-.001,i.shadow.mapSize.setScalar(1024),i.castShadow=!0,f.add(i);var o=[];f.updateMatrixWorld(!0),f.traverse(function(e){if(e.geometry){var t=e.geometry.clone();for(var a in t.applyMatrix4(e.matrixWorld),t.attributes)"position"!==a&&t.deleteAttribute(a);o.push(t)}});var d=r.BufferGeometryUtils.mergeBufferGeometries(o,!1);d.boundsTree=new n.MeshBVH(d,{lazyGeneration:!1}),(w=new e.Mesh(d)).material.wireframe=!0,w.material.opacity=.5,w.material.transparent=!0,y=new n.MeshBVHVisualizer(w,S.visualizeDepth),u.add(y),u.add(w),u.add(f),f.traverse(function(e){e.material&&(e.castShadow=!0,e.receiveShadow=!0,e.material.shadowSide=2)})})}function C(t,a,r,i,o){var n=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0;if(!(o<Math.max(Math.abs(.04*S.gravity),5))){var d=2*Math.max(a?Math.max(t.collider.radius,a.collider.radius):t.collider.radius,.4),s=new e.Mesh(new e.RingBufferGeometry(0,1,30),new e.MeshBasicMaterial({side:2,transparent:!0,depthWrite:!1}));s.lifetime=0,s.maxLifetime=.4,s.maxScale=d*Math.max(Math.sin(Math.min(o/200,1)*Math.PI/2),.35),s.position.copy(r).addScaledVector(i,n),s.quaternion.setFromUnitVectors(P,i),u.add(s),M.push(s)}}function B(){var t=new e.Color(16777215),a=new e.Color(1251612).lerp(t,.5*Math.random()+.5).convertSRGBToLinear(),r=new e.Mesh(new e.SphereBufferGeometry(1,20,20),new e.MeshStandardMaterial({color:a}));u.add(r),r.castShadow=!0,r.receiveShadow=!0,r.material.shadowSide=2;var i=.5*S.sphereSize*(.2*Math.random()+.6);return r.scale.setScalar(i),r.collider=new e.Sphere(r.position,i),r.velocity=new e.Vector3(0,0,0),r.mass=Math.pow(i,3)*Math.PI*4/3,g.push(r),r}function L(t){for(var a=w.geometry.boundsTree,r=0,i=g.length;r<i;r++){var o=g[r],n=o.collider;if(o.velocity.y+=S.gravity*t,n.center.addScaledVector(o.velocity,t),n.center.y<-80)g.splice(r,1),r--,i--,o.material.dispose(),o.geometry.dispose(),u.remove(o);else{V.copy(o.collider);var d=!1;if(a.shapecast(w,{intersectsBounds:function(e){return e.intersectsSphere(V)},intersectsTriangle:function(e){e.closestPointToPoint(V.center,b),b.sub(V.center);var t=b.length();if(t<V.radius){var a=t-V.radius;b.multiplyScalar(1/t),V.center.addScaledVector(b,a),d=!0}},traverseBoundsOrder:function(e){return e.distanceToPoint(V.center)-V.radius}}),d){b.subVectors(V.center,n.center).normalize(),o.velocity.reflect(b);var s=o.velocity.dot(b);o.velocity.addScaledVector(b,.5*-s),o.velocity.multiplyScalar(Math.max(1-t,0)),n.center.copy(V.center),x.copy(V.center).addScaledVector(b,-V.radius),C(o,null,x,b,s,.05)}}}for(var c=0,l=g.length;c<l;c++){for(var p=g[c],h=p.collider,m=c+1;m<l;m++){var v=g[m],f=v.collider;b.subVectors(h.center,f.center);var y=b.length()-(h.radius+f.radius);if(y<0){b.normalize();var M=p.velocity.dot(b),P=v.velocity.dot(b),j=Math.max(M,.2),z=Math.max(P,.2),B=j+z,L=j/B,O=z/B;h.center.addScaledVector(b,-L*y),f.center.addScaledVector(b,O*y);var G=new e.Vector3;G.addScaledVector(b,-M).addScaledVector(b,P);var H=G.length(),W=p.mass,E=v.mass,F=void 0,q=void 0;G.dot(p.velocity)>G.dot(v.velocity)?(F=.5*H*(W-E)/(W+E),q=.5*H*2*W/(W+E),F-=H):(F=.5*H*2*E/(W+E),q=.5*H*(E-W)/(W+E),q-=H),G.normalize(),p.velocity.addScaledVector(G,F),v.velocity.addScaledVector(G,q),x.copy(h.center).addScaledVector(b,-h.radius),C(p,v,x,b,H,0)}}p.position.copy(h.center)}}function O(){g.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),g.length=0,M.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),M.length=0}function G(){var t=new e.Vector3;g.forEach(function(e){t.copy(e.position),t.y+=10,t.normalize(),e.velocity.addScaledVector(t,120)})}function H(e){if(w)for(var t=S.physicsSteps,a=0;a<t;a++)L(e/t);for(var r=0,i=M.length;r<i;r++){var o=M[r];o.lifetime+=e;var n=o.lifetime/o.maxLifetime,d=Math.sin(4.5*n*Math.PI/4);d=1-Math.pow(1-d,2),o.scale.setScalar(d*o.maxScale),o.material.opacity=1-Math.sin(2*n*Math.PI/4),n>=1&&(M.splice(r,1),o.parent.remove(o),o.geometry.dispose(),o.material.dispose(),r--,i--)}}function W(){v.update(),requestAnimationFrame(W);var e=Math.min(h.getDelta(),.1);w&&(w.visible=S.displayCollider,y.visible=S.displayBVH,S.pause||H(S.simulationSpeed*e)),l.render(u,p)}j(),W();
 },{"three":"dKqR","three/examples/jsm/loaders/GLTFLoader.js":"O6i0","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/utils/BufferGeometryUtils.js":"Jcll","stats.js":"dnrf","dat.gui":"KkZG","../src/index.js":"uBxZ"}]},{},["UoLN"], null)
\ No newline at end of file
diff --git a/example/bundle/randomSampleDebug.32ad2b43.js b/example/bundle/randomSampleDebug.32ad2b43.js
index f130fb257..d393d8d9b 100644
--- a/example/bundle/randomSampleDebug.32ad2b43.js
+++ b/example/bundle/randomSampleDebug.32ad2b43.js
@@ -23,11 +23,11 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
-"use strict";function e(e,x,o){o.min.x=x[e],o.min.y=x[e+1],o.min.z=x[e+2],o.max.x=x[e+3],o.max.y=x[e+4],o.max.z=x[e+5]}Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=e;
-},{}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
+},{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
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t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/raycast.88074831.js b/example/bundle/raycast.88074831.js
index ed430509d..e21fba4f9 100644
--- a/example/bundle/raycast.88074831.js
+++ b/example/bundle/raycast.88074831.js
@@ -556,11 +556,11 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
-"use strict";function e(e,x,o){o.min.x=x[e],o.min.y=x[e+1],o.min.z=x[e+2],o.max.x=x[e+3],o.max.y=x[e+4],o.max.z=x[e+5]}Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=e;
-},{}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
+},{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
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t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/raycast.html b/example/bundle/raycast.html
index 41b90acce..4886af3ff 100644
--- a/example/bundle/raycast.html
+++ b/example/bundle/raycast.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/sculpt.493e9c78.js b/example/bundle/sculpt.493e9c78.js
index ac3cab2e7..6771c722c 100644
--- a/example/bundle/sculpt.493e9c78.js
+++ b/example/bundle/sculpt.493e9c78.js
@@ -557,11 +557,11 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
-"use strict";function e(e,x,o){o.min.x=x[e],o.min.y=x[e+1],o.min.z=x[e+2],o.max.x=x[e+3],o.max.y=x[e+4],o.max.z=x[e+5]}Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=e;
-},{}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=p,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,p=y,c=B;if(65535===p[s+15]){var v=c[r+6],d=p[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=c[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function p(r,t,n,i,a){var o=2*r,s=g,x=y,c=B;if(65535===x[o+15]){var v=c[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=c[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=c[r+6]):(T=c[r+6],w=r+8);var m=f(T,s,a,u)?p(T,t,n,i,a):null;if(m){var A=m.point[b];if(U?A<=s[w+h]:A>=s[w+h+3])return m}var M=f(w,s,a,u)?p(w,t,n,i,a):null;return m&&M?m.distance<=M.distance?m:M:m||M||null}var c=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,s=new r.Box3;function u(r,e,t,n,a,o,s){for(var u=t.index,l=t.attributes.position,x=3*r,p=3*(e+r);x<p;x+=3)if((0,i.setTriangle)(s,x,u,l),s.needsUpdate=!0,n(s,x,x+1,x+2,a,o))return!0;return!1}return function r(i,a,l,x,p){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,v=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,f=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,d=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,T=arguments.length>9&&void 0!==arguments[9]?arguments[9]:s;function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*i,U=g,m=y,A=B;if(65535===m[b+15])return u(A[i+6],m[b+14],l,p,!1,v,f);var M,j,q,O,N=i+8,C=A[i+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),M=c(q),(j=c(O))<M)){S=C,I=N;var D=M;M=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=x(q,65535===m[S+15],M,v+1);if(F===o.CONTAINED){var G=w(S);E=u(G,h(S)-G,l,p,!0,v+1,f)}else E=F&&r(S,a,l,x,p,c,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=x(O,65535===m[I+15],j,v+1);if(z===o.CONTAINED){var P=a.geometry,R=w(I);_=u(R,h(I)-R,P,p,!0,v+1,f)}else _=z&&r(I,a,l,x,p,c,v+1,f,d,T);return!!_}}();exports.shapecast=c;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,p=new n.OrientedBox;return function r(n,a,c,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,m=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,c,v,f,d)?!0:((0,t.arrayToBox)(m,w,s),!(!d.intersectsBox(s)||!r(m,a,c,v,f,d)))}var A=c,M=A.index,j=A.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,p),p.matrix.copy(l),p.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,function(r){return p.intersectsBox(r)},function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,M,j),o.update(),r.intersectsTriangle(o))return!0;return!1});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,M,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
+},{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
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t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
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@@ -571,5 +571,5 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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d.default,document.body.appendChild(e.dom);var B=new c.GUI,M=B.addFolder("Sculpting");M.add(z,"brush",["normal","clay","flatten"]),M.add(z,"size").min(.025).max(.25).step(.005),M.add(z,"intensity").min(1).max(100).step(1),M.add(z,"maxSteps").min(1).max(25).step(1),M.add(z,"symmetrical"),M.add(z,"invert"),M.add(z,"flatShading").onChange(function(e){i.material.flatShading=e,i.material.needsUpdate=!0}),M.open();var E=B.addFolder("BVH Helper");E.add(z,"depth").min(1).max(20).step(1).onChange(function(e){a.depth=parseFloat(e),a.update()}),E.add(z,"displayHelper").onChange(function(e){a.visible=e}),E.open(),B.add({reset:S},"reset"),B.add({rebuildBVH:function(){i.geometry.computeBoundsTree({setBoundingBox:!1}),a.update()}},"rebuildBVH"),B.open(),window.addEventListener("resize",function(){s.aspect=window.innerWidth/window.innerHeight,s.updateProjectionMatrix(),t.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("pointermove",function(e){b.x=e.clientX/window.innerWidth*2-1,b.y=-e.clientY/window.innerHeight*2+1}),window.addEventListener("pointerdown",function(e){b.x=e.clientX/window.innerWidth*2-1,b.y=-e.clientY/window.innerHeight*2+1,x=Boolean(1&e.buttons),w=!0;var r=new l.Raycaster;r.setFromCamera(b,s),r.firstHitOnly=!0;var t=r.intersectObject(i);o.enabled=0===t.length},!0),window.addEventListener("pointerup",function(e){x=Boolean(1&e.buttons),"touch"===e.pointerType&&(w=!1)}),window.addEventListener("contextmenu",function(e){e.preventDefault()}),window.addEventListener("wheel",function(e){var r=e.deltaY;1===e.deltaMode&&(r*=40),2===e.deltaMode&&(r*=40),z.size+=1e-4*r,z.size=Math.max(Math.min(z.size,.25),.025),B.updateDisplay()}),(o=new m.OrbitControls(s,t.domElement)).minDistance=1.5,o.addEventListener("start",function(){this.active=!0}),o.addEventListener("end",function(){this.active=!1})}function P(e,r){var s=arguments.length>2&&void 0!==arguments[2]&&arguments[2],t=arguments.length>3&&void 0!==arguments[3]?arguments[3]:new Set,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:new Set,n=new l.Matrix4;n.copy(i.matrixWorld).invert();var u=new l.Sphere;u.center.copy(e).applyMatrix4(n),u.radius=z.size;var a=new Set,d=new l.Vector3,c=new l.Vector3,m=i.geometry.index,p=i.geometry.attributes.position,f=i.geometry.attributes.normal,q=new Set;i.geometry.boundsTree.shapecast(i,function(e){var r=u.intersectsBox(e),s=e.min,t=e.max;if(r){for(var o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var n=0;n<=1;n++)if(d.set(0===o?s.x:t.x,0===i?s.y:t.y,0===n?s.z:t.z),!u.containsPoint(d))return j.INTERSECTED;return j.CONTAINED}return r?j.INTERSECTED:j.NOT_INTERSECTED},function(e,r,s,i,n){var d=~~(r/3);q.add(d),t.add(d);var c=m.getX(r),l=m.getX(s),p=m.getX(i);return n?(a.add(c),a.add(l),a.add(p),o.add(c),o.add(l),o.add(p)):(u.containsPoint(e.a)&&(a.add(c),o.add(c)),u.containsPoint(e.b)&&(a.add(l),o.add(l)),u.containsPoint(e.c)&&(a.add(p),o.add(p))),!1});var y=new l.Vector3;y.copy(e).applyMatrix4(n);var g=new l.Vector3,w=0;if(a.forEach(function(e){d.fromBufferAttribute(f,e),c.add(d),s||(w++,d.fromBufferAttribute(p,e),g.add(d))}),c.normalize(),r.quaternion.setFromUnitVectors(h,c),w&&g.multiplyScalar(1/w),!s){var b=1e-4*z.intensity,v=new l.Plane;v.setFromNormalAndCoplanarPoint(c,g),a.forEach(function(e){d.fromBufferAttribute(p,e);var r=d.distanceTo(y),s=z.invert?-1:1,t=1-r/z.size;if("clay"===z.brush){t=Math.pow(t,3);var o=v.distanceToPoint(d),i=s*Math.min(4*t,1);d.addScaledVector(c,i*b-s*o*i*.3)}else if("normal"===z.brush)t=Math.pow(t,2),d.addScaledVector(c,s*t*b);else if("flatten"===z.brush){t=Math.pow(t,2);var n=v.distanceToPoint(d);d.addScaledVector(c,-n*t*z.intensity*.01*.5)}p.setXYZ(e,d.x,d.y,d.z),f.setXYZ(e,0,0,0)}),a.size&&(p.needsUpdate=!0)}}function V(e,r){var s=new l.Vector3,t=new l.Vector3,o=i.geometry.index,n=i.geometry.attributes.position,u=i.geometry.attributes.normal,a=new l.Triangle;e.forEach(function(e){var i=3*e,d=i+0,c=i+1,l=i+2,m=o.getX(d),p=o.getX(c),j=o.getX(l);a.a.fromBufferAttribute(n,m),a.b.fromBufferAttribute(n,p),a.c.fromBufferAttribute(n,j),a.getNormal(t),r.has(m)&&(s.fromBufferAttribute(u,m),s.add(t),u.setXYZ(m,s.x,s.y,s.z)),r.has(p)&&(s.fromBufferAttribute(u,p),s.add(t),u.setXYZ(p,s.x,s.y,s.z)),r.has(j)&&(s.fromBufferAttribute(u,j),s.add(t),u.setXYZ(j,s.x,s.y,s.z))}),r.forEach(function(e){s.fromBufferAttribute(u,e),s.normalize(),u.setXYZ(e,s.x,s.y,s.z)}),u.needsUpdate=!0}function T(){if(requestAnimationFrame(T),e.begin(),o.active||!w)n.visible=!1,u.visible=!1,M.setScalar(1/0);else{var d=new l.Raycaster;d.setFromCamera(b,s),d.firstHitOnly=!0;var c=d.intersectObject(i,!0)[0];if(c)if(n.visible=!0,n.scale.set(z.size,z.size,.1),n.position.copy(c.point),u.visible=z.symmetrical,u.scale.set(z.size,z.size,.1),u.position.copy(c.point),u.position.x*=-1,o.enabled=!1,M.x===1/0&&M.copy(c.point),x||B){for(var m=(b.x-v.x)*window.innerWidth*window.devicePixelRatio,p=(b.y-v.y)*window.innerHeight*window.devicePixelRatio,j=Math.sqrt(m*m+p*p),f=c.point.distanceTo(M),q=.15*z.size,y=Math.max(q/f,1/z.maxSteps),g=j*y,h=0,S=new Set,E=new Set;f>q&&j>200*z.size/c.distance&&(v.lerp(b,y),M.lerp(c.point,y),f-=q,j-=g,P(M,n,!1,S,E),z.symmetrical&&(M.x*=-1,P(M,u,!1,S,E),M.x*=-1),!(++h>z.maxSteps)););h>0?(V(S,E),i.geometry.boundsTree.refit(),a.update()):(P(c.point,n,!0),z.symmetrical&&(c.point.x*=-1,P(c.point,u,!0),c.point.x*=-1))}else P(c.point,n,!0),z.symmetrical&&(c.point.x*=-1,P(c.point,u,!0),c.point.x*=-1),v.copy(b),M.copy(c.point);else o.enabled=!0,n.visible=!1,u.visible=!1,v.copy(b),M.setScalar(1/0)}B=x,t.render(r,s),e.end()}E(),T();
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("core-js/modules/es6.string.repeat"),require("core-js/modules/es6.string.small"),require("core-js/modules/es6.string.starts-with"),require("core-js/modules/es6.string.strike"),require("core-js/modules/es6.string.sub"),require("core-js/modules/es6.string.sup"),require("core-js/modules/es7.string.trim-left"),require("core-js/modules/es7.string.trim-right"),require("core-js/modules/es6.typed.array-buffer"),require("core-js/modules/es6.typed.int8-array"),require("core-js/modules/es6.typed.uint8-array"),require("core-js/modules/es6.typed.uint8-clamped-array"),require("core-js/modules/es6.typed.int16-array"),require("core-js/modules/es6.typed.uint16-array"),require("core-js/modules/es6.typed.int32-array"),require("core-js/modules/es6.typed.uint32-array"),require("core-js/modules/es6.typed.float32-array"),require("core-js/modules/es6.typed.float64-array"),require("core-js/modules/es6.weak-map"),require("core-js/modules/es6.weak-set"),require("core-js/modules/web.timers"),require("core-js/modules/web.immediate"),require("core-js/modules/web.dom.iterable"),require("regenerator-runtime/runtime");var e,r,s,t,o,i,n,u,a,d=y(require("stats.js/src/Stats")),c=q(require("dat.gui")),l=q(require("three")),m=require("three/examples/jsm/controls/OrbitControls.js"),p=require("three/examples/jsm/utils/BufferGeometryUtils.js"),j=require("../src/index.js");function f(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return f=function(){return e},e}function q(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=f();if(r&&r.has(e))return r.get(e);var s={},t=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if(Object.prototype.hasOwnProperty.call(e,o)){var i=t?Object.getOwnPropertyDescriptor(e,o):null;i&&(i.get||i.set)?Object.defineProperty(s,o,i):s[o]=e[o]}return s.default=e,r&&r.set(e,s),s}function y(e){return e&&e.__esModule?e:{default:e}}l.Mesh.prototype.raycast=j.acceleratedRaycast,l.BufferGeometry.prototype.computeBoundsTree=j.computeBoundsTree,l.BufferGeometry.prototype.disposeBoundsTree=j.disposeBoundsTree;var g,w=new l.Vector3(0,0,1),h=!1,b=new l.Vector2,v=new l.Vector2,x=!1,S=!1,B=new l.Vector3,M={size:.1,brush:"clay",intensity:50,maxSteps:10,invert:!1,symmetrical:!0,flatShading:!1,depth:10,displayHelper:!1};function z(){i&&(i.geometry.dispose(),i.material.dispose(),r.remove(i)),g||(g=(new l.TextureLoader).load("../textures/skinHazardousarts2.jpg"));var e=new l.IcosahedronBufferGeometry(1,100);e.deleteAttribute("uv"),(e=p.BufferGeometryUtils.mergeVertices(e)).attributes.position.setUsage(l.DynamicDrawUsage),e.attributes.normal.setUsage(l.DynamicDrawUsage),e.computeBoundsTree({setBoundingBox:!1}),(i=new l.Mesh(e,new l.MeshMatcapMaterial({flatShading:M.flatShading,matcap:g}))).material.matcap.encoding=l.sRGBEncoding,i.frustumCulled=!1,r.add(i),a||(a=new j.MeshBVHVisualizer(i,M.depth),M.displayHelper&&r.add(a)),a.mesh=i,a.update()}function E(){(t=new l.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),t.setSize(window.innerWidth,window.innerHeight),t.setClearColor(1251612,1),t.gammaOutput=!0,document.body.appendChild(t.domElement),t.domElement.style.touchAction="none",(r=new l.Scene).fog=new l.Fog(1251612,20,60);var p=new l.DirectionalLight(16777215,.5);p.position.set(1,1,1),r.add(p),r.add(new l.AmbientLight(16777215,.4)),z();for(var j=[new l.Vector3,new l.Vector3(0,0,1)],f=0;f<50;f++){var q=f+1,y=Math.sin(2*Math.PI*f/50),g=Math.cos(2*Math.PI*f/50),w=Math.sin(2*Math.PI*q/50),v=Math.cos(2*Math.PI*q/50);j.push(new l.Vector3(y,g,0),new l.Vector3(w,v,0))}(n=new l.LineSegments).geometry.setFromPoints(j),n.material.color.set(16485376),r.add(n),u=n.clone(),r.add(u),(s=new l.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,3),s.far=100,s.updateProjectionMatrix(),e=new 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diff --git a/example/bundle/selection.383a520f.js b/example/bundle/selection.383a520f.js
index 9a6dcbf92..a8976723a 100644
--- a/example/bundle/selection.383a520f.js
+++ b/example/bundle/selection.383a520f.js
@@ -30,11 +30,11 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),r=require("./Constants.js"),t=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,r){var t;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(t=l(e))||r&&e&&"number"==typeof e.length){t&&(e=t);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){t=e[Symbol.iterator]()},n:function(){var e=t.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==t.return||t.return()}finally{if(s)throw a}}}}function l(e,r){if(e){if("string"==typeof e)return c(e,r);var t=Object.prototype.toString.call(e).slice(8,-1);return"Object"===t&&e.constructor&&(t=e.constructor.name),"Map"===t||"Set"===t?Array.from(e):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?c(e,r):void 0}}function c(e,r){(null==r||r>e.length)&&(r=e.length);for(var t=0,n=new Array(r);t<r;t++)n[t]=e[t];return n}function f(e,r,t){return r in e?Object.defineProperty(e,r,{value:t,enumerable:!0,configurable:!0,writable:!0}):e[r]=t,e}function d(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function v(e,r){for(var t=0;t<r.length;t++){var n=r[t];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,r,t){return r&&v(e.prototype,r),t&&v(e,t),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,B=new i.SeparatingAxisTriangle,b=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:r.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,t.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,r){var t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
@@ -44,5 +44,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
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o.NOT_INTERSECTED;var O=W(R),S=O.map(function(e,t){var r=O[(t+1)%O.length],n=A[t];return n.start.copy(e),n.end.copy(r),n});if(U(w[0].start,S)%2==1)return o.INTERSECTED;for(var B=0,P=0,N=O.length;P<N;P++){var z=U(O[P],w);if(0===P&&(B=z),B!==z)return o.INTERSECTED}for(var I=0,L=S.length;I<L;I++)for(var G=S[I],F=0,X=w.length;F<X;F++)if(j(G,w[F]))return o.INTERSECTED;return B%2==0?o.NOT_INTERSECTED:o.CONTAINED},intersectsTriangle:function(e,t,r,n){var o=3*t,a=o+0,i=o+1,l=o+2;if(r)return d.push(a,i,l),x.selectModel;var s=x.useBoundsTree?H[n]:D;if("centroid"===x.selectionMode){var u=e.a.add(e.b).add(e.c).multiplyScalar(1/3);if(u.applyMatrix4(C),U(u,s)%2==1)return d.push(a,i,l),x.selectModel}else if("intersection"===x.selectionMode){for(var c=[e.a,e.b,e.c],p=0;p<3;p++){var f=c[p];if(f.applyMatrix4(C),U(f,s)%2==1)return d.push(a,i,l),x.selectModel}var 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diff --git a/example/bundle/shapecast.b93a7fe2.js b/example/bundle/shapecast.b93a7fe2.js
index 1821e5365..886cf515d 100644
--- a/example/bundle/shapecast.b93a7fe2.js
+++ b/example/bundle/shapecast.b93a7fe2.js
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+},{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),o=require("./Utils/SeparatingAxisTriangle.js"),i=require("./Utils/TriangleUtils.js"),a=require("./castFunctions.js"),u=require("./Utils/BufferNodeUtils.js");function s(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,a=!0,u=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return 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e.Vector3,b=new o.SeparatingAxisTriangle,x=new e.Vector3,B=new e.Vector3,m=new e.Box3,w=function(){function n(o){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(v(this,n),!o.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(o.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(o.index&&o.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._roots=null,i[h]||(this._roots=(0,r.buildPackedTree)(o,i),!o.boundingBox&&i.setBoundingBox&&(o.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=o}return d(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,o=t.getIndex();return{roots:n,index:r?o.array.slice():o.array}}},{key:"deserialize",value:function(t,r){var o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],i=t.index,a=t.roots,u=new n(r,c({},h,!0));if(u._roots=a,o){var s=r.getIndex();if(null===s){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else s.array!==i&&(s.array.set(i),s.needsUpdate=!0)}return u}}]),d(n,[{key:"refit",value:function(){for(var e,t,n,o,i=this.geometry,a=i.index.array,u=i.attributes.position.array,s=this._roots,l=0,f=s.length;l<f;l++)e=s[l],t=new Uint32Array(e),n=new Uint16Array(e),o=new Float32Array(e),c(0);function c(e){var i=2*e;if(n[i+15]===r.IS_LEAFNODE_FLAG){for(var s=t[e+6],l=1/0,f=1/0,v=1/0,y=-1/0,d=-1/0,h=-1/0,p=3*s,g=3*(s+n[i+14]);p<g;p++){var b=3*a[p],x=u[b+0],B=u[b+1],m=u[b+2];x<l&&(l=x),x>y&&(y=x),B<f&&(f=B),B>d&&(d=B),m<v&&(v=m),m>h&&(h=m)}return(o[e+0]!==l||o[e+1]!==f||o[e+2]!==v||o[e+3]!==y||o[e+4]!==d||o[e+5]!==h)&&(o[e+0]=l,o[e+1]=f,o[e+2]=v,o[e+3]=y,o[e+4]=d,o[e+5]=h,!0)}var w=e+8,A=t[e+6],T=c(w),k=c(A),_=T||k;if(_)for(var E=0;E<3;E++){var P=w+E,j=A+E,S=o[P],F=o[P+3],U=o[j],I=o[j+3];o[e+E]=S<U?S:U,o[e+E+3]=F>I?F:I}return _}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],o=new Uint32Array(n),i=new Uint16Array(n);!function t(a){var u=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var s=2*a;var l=i[s+15]===r.IS_LEAFNODE_FLAG;if(l){var f=o[a+6],c=i[s+14];e(u,l,new Float32Array(n,4*a,6),f,c)}else{var v=a+r.BYTES_PER_NODE/4,y=o[a+6],d=o[a+7],h=e(u,l,new Float32Array(n,4*a,6),d);h||(t(v,u+1),t(y,u+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var o,i=this.geometry,u=s(this._roots);try{for(u.s();!(o=u.n()).done;){var l=o.value;(0,a.setBuffer)(l),(0,a.raycast)(0,e,i,t,r,n)}}catch(f){u.e(f)}finally{u.f()}(0,a.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,o=this.geometry,i=null,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;(0,a.setBuffer)(l);var f=(0,a.raycastFirst)(0,e,o,t,r);null!=f&&(null==i||f.distance<i.distance)&&(i=f)}}catch(c){u.e(c)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"intersectsGeometry",value:function(e,t,r){var n,o=this.geometry,i=!1,u=s(this._roots);try{for(u.s();!(n=u.n()).done;){var l=n.value;if((0,a.setBuffer)(l),i=(0,a.intersectsGeometry)(0,e,o,t,r))break}}catch(f){u.e(f)}finally{u.f()}return(0,a.clearBuffer)(),i}},{key:"shapecast",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;r=r||function(e,t,r,n,o){return o};var o,i=this.geometry,u=!1,l=s(this._roots);try{for(l.s();!(o=l.n()).done;){var f=o.value;if((0,a.setBuffer)(f),u=(0,a.shapecast)(0,e,i,t,r,n))break}}catch(c){l.e(c)}finally{l.f()}return(0,a.clearBuffer)(),u}},{key:"intersectsBox",value:function(e,t,r){return p.set(t.min,t.max,r),p.update(),this.shapecast(e,function(e){return p.intersectsBox(e)},function(e){return p.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),p.set(t.boundingBox.min,t.boundingBox.max,r),p.update();var s=t.attributes.position,l=t.index,f=null,c=null;n&&(f=x),o&&(c=B);var v=1/0;return this.shapecast(e,function(e,t,r){return r<v&&r<u},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,u=0,y=l.count;u<y;u+=3){(0,i.setTriangle)(b,u,l,s),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var d=b.sphere;if(!(d.center.distanceTo(t.center)-d.radius-t.radius>v)){b.update();var h=e.distanceToTriangle(b,f,c);if(h<v&&(n&&n.copy(f),o&&o.copy(c),v=h),h<a)return!0}}return!1},function(e){return p.distanceToBox(e,Math.min(v,u))}),v}},{key:"distanceToGeometry",value:function(e,t,r,n,o){return this.closestPointToGeometry(e,t,r,null,null,n,o)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,i=1/0;return this.shapecast(e,function(e,t,r){return r<i&&r<o},function(e){e.closestPointToPoint(t,g);var o=t.distanceTo(g);return o<i&&(r&&r.copy(g),i=o),o<n},function(e){return e.distanceToPoint(t)}),i}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,u.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),r=require("./Constants.js"),t=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,r){var t;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(t=l(e))||r&&e&&"number"==typeof e.length){t&&(e=t);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){t=e[Symbol.iterator]()},n:function(){var e=t.next();return 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e.Vector3,B=new i.SeparatingAxisTriangle,b=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:r.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,t.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,r){var t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 37f643254..c4303bfe1 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -127,7 +127,6 @@ export default class MeshBVH {
 
 		}
 
-
 		if ( terminationIndices && Array.isArray( terminationIndices ) ) {
 
 			terminationIndices = new Set( terminationIndices );
diff --git a/umd/index.js b/umd/index.js
index 413fb0c2e..7cb3b1cc5 100644
--- a/umd/index.js
+++ b/umd/index.js
@@ -2007,6 +2007,35 @@
 
 	}
 
+	function iterateOverTriangles(
+		offset,
+		count,
+		geometry,
+		intersectsTriangleFunc,
+		contained,
+		depth,
+		triangle
+	) {
+
+		const index = geometry.index;
+		const pos = geometry.attributes.position;
+		for ( let i = offset, l = count + offset; i < l; i ++ ) {
+
+			setTriangle( triangle, i * 3, index, pos );
+			triangle.needsUpdate = true;
+
+			if ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {
+
+				return true;
+
+			}
+
+		}
+
+		return false;
+
+	}
+
 	/* Generated from "castFunctions.template.js". Do not edit. */
 
 	const boundingBox = new three.Box3();
@@ -2125,41 +2154,12 @@
 		const _cachedBox1 = new three.Box3();
 		const _cachedBox2 = new three.Box3();
 
-		function iterateOverTriangles(
-			offset,
-			count,
-			geometry,
-			intersectsTriangleFunc,
-			contained,
-			depth,
-			triangle
-		) {
-
-			const index = geometry.index;
-			const pos = geometry.attributes.position;
-			for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
-
-				setTriangle( triangle, i, index, pos );
-				triangle.needsUpdate = true;
-
-				if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
-
-					return true;
-
-				}
-
-			}
-
-			return false;
-
-		}
-
 		return function shapecast(
 			nodeIndex32,
 			mesh,
 			geometry,
 			intersectsBoundsFunc,
-			intersectsTriangleFunc,
+			intersectsRangeFunc,
 			nodeScoreFunc = null,
 			depth = 0,
 			triangle = _triangle,
@@ -2210,7 +2210,7 @@
 
 				const offset = uint32Array[ nodeIndex32 + 6 ];
 				const count = uint16Array[ nodeIndex16 + 14 ];
-				return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
+				return intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );
 
 			} else {
 
@@ -2257,8 +2257,8 @@
 
 				}
 
-				const isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );
-				const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
+				const isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );
+				const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );
 
 				let c1StopTraversal;
 				if ( c1Intersection === CONTAINED ) {
@@ -2267,7 +2267,7 @@
 					const end = getRightEndOffset( c1 );
 					const count = end - offset;
 
-					c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+					c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );
 
 				} else {
 
@@ -2278,7 +2278,7 @@
 							mesh,
 							geometry,
 							intersectsBoundsFunc,
-							intersectsTriangleFunc,
+							intersectsRangeFunc,
 							nodeScoreFunc,
 							depth + 1,
 							triangle,
@@ -2295,18 +2295,17 @@
 				box2 = cachedBox2;
 				arrayToBox$1( c2, float32Array, box2 );
 
-				const isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );
-				const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
+				const isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );
+				const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );
 
 				let c2StopTraversal;
 				if ( c2Intersection === CONTAINED ) {
 
-					const geometry = mesh.geometry;
 					const offset = getLeftOffset( c2 );
 					const end = getRightEndOffset( c2 );
 					const count = end - offset;
 
-					c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+					c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );
 
 				} else {
 
@@ -2317,7 +2316,7 @@
 							mesh,
 							geometry,
 							intersectsBoundsFunc,
-							intersectsTriangleFunc,
+							intersectsRangeFunc,
 							nodeScoreFunc,
 							depth + 1,
 							triangle,
@@ -2390,27 +2389,33 @@
 					obb2.update();
 
 					cachedMesh.geometry = otherGeometry;
-					const res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
+					const res = otherGeometry.boundsTree.shapecast( cachedMesh, {
 
-						tri.a.applyMatrix4( geometryToBvh );
-						tri.b.applyMatrix4( geometryToBvh );
-						tri.c.applyMatrix4( geometryToBvh );
-						tri.update();
+						intersectsBounds: box => obb2.intersectsBox( box ),
 
-						for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+						intersectsTriangle: tri => {
 
-							// this triangle needs to be transformed into the current BVH coordinate frame
-							setTriangle( triangle2, i, thisIndex, thisPos );
-							triangle2.update();
-							if ( tri.intersectsTriangle( triangle2 ) ) {
+							tri.a.applyMatrix4( geometryToBvh );
+							tri.b.applyMatrix4( geometryToBvh );
+							tri.c.applyMatrix4( geometryToBvh );
+							tri.update();
 
-								return true;
+							for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+
+								// this triangle needs to be transformed into the current BVH coordinate frame
+								setTriangle( triangle2, i, thisIndex, thisPos );
+								triangle2.update();
+								if ( tri.intersectsTriangle( triangle2 ) ) {
+
+									return true;
+
+								}
 
 							}
 
-						}
+							return false;
 
-						return false;
+						}
 
 					} );
 					cachedMesh.geometry = null;
@@ -2522,6 +2527,7 @@
 	const temp1 = new three.Vector3();
 	const temp2 = new three.Vector3();
 	const tempBox = new three.Box3();
+	const triangle = new SeparatingAxisTriangle();
 
 	class MeshBVH {
 
@@ -2618,7 +2624,19 @@
 
 		}
 
-		refit() {
+		refit( nodeIndices = null, terminationIndices = null ) {
+
+			if ( nodeIndices && Array.isArray( nodeIndices ) ) {
+
+				nodeIndices = new Set( nodeIndices );
+
+			}
+
+			if ( terminationIndices && Array.isArray( terminationIndices ) ) {
+
+				terminationIndices = new Set( terminationIndices );
+
+			}
 
 			const geometry = this.geometry;
 			const indexArr = geometry.index.array;
@@ -2635,7 +2653,7 @@
 
 			}
 
-			function _traverse( node32Index ) {
+			function _traverse( node32Index, force = false ) {
 
 				const node16Index = node32Index * 2;
 				const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
@@ -2699,8 +2717,24 @@
 					const left = node32Index + 8;
 					const right = uint32Array[ node32Index + 6 ];
 
-					const leftChange = _traverse( left );
-					const rightChange = _traverse( right );
+					let leftChange = false;
+					let forceLeft = force || terminationIndices && terminationIndices.has( left );
+					let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );
+					if ( traverseLeft ) {
+
+						leftChange = _traverse( left, forceLeft );
+
+					}
+
+					let rightChange = false;
+					let forceRight = force || terminationIndices && terminationIndices.has( right );
+					let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );
+					if ( traverseRight ) {
+
+						rightChange = _traverse( right, forceRight );
+
+					}
+
 					const didChange = leftChange || rightChange;
 
 					if ( didChange ) {
@@ -2774,11 +2808,10 @@
 
 				setBuffer( root );
 				raycast( 0, mesh, geometry, raycaster, ray, intersects );
+				clearBuffer();
 
 			}
 
-			clearBuffer();
-
 		}
 
 		raycastFirst( mesh, raycaster, ray ) {
@@ -2789,6 +2822,7 @@
 
 				setBuffer( root );
 				const result = raycastFirst( 0, mesh, geometry, raycaster, ray );
+				clearBuffer();
 
 				if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
 
@@ -2798,7 +2832,6 @@
 
 			}
 
-			clearBuffer();
 
 			return closestResult;
 
@@ -2812,6 +2845,7 @@
 
 				setBuffer( root );
 				result = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );
+				clearBuffer();
 
 				if ( result ) {
 
@@ -2821,23 +2855,93 @@
 
 			}
 
-			clearBuffer();
-
 			return result;
 
 		}
 
-		shapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {
-
-			// default the triangle intersection function
-			intersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );
+		shapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {
 
 			const geometry = this.geometry;
+			if ( callbacks instanceof Function ) {
+
+				if ( _intersectsTriangleFunc ) {
+
+					// Support the previous function signature that provided three sequential index buffer
+					// indices here.
+					const originalTriangleFunc = _intersectsTriangleFunc;
+					_intersectsTriangleFunc = ( tri, index, contained, depth ) => {
+
+						const i3 = index * 3;
+						return originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );
+
+					};
+
+
+				}
+
+				callbacks = {
+
+					boundsTraverseOrder: _orderNodesFunc,
+					intersectsBounds: callbacks,
+					intersectsTriangle: _intersectsTriangleFunc,
+					intersectsRange: null,
+
+				};
+
+				console.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );
+
+			}
+
+			let {
+				boundsTraverseOrder,
+				intersectsBounds,
+				intersectsRange,
+				intersectsTriangle,
+			} = callbacks;
+
+			if ( intersectsRange && intersectsTriangle ) {
+
+				const originalIntersectsRange = intersectsRange;
+				intersectsRange = ( offset, count, contained, depth, nodeIndex ) => {
+
+					if ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {
+
+						return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
+
+					}
+
+					return true;
+
+				};
+
+			} else if ( ! intersectsRange ) {
+
+				if ( intersectsTriangle ) {
+
+					intersectsRange = ( offset, count, contained, depth ) => {
+
+						return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
+
+					};
+
+				} else {
+
+					intersectsRange = ( offset, count, contained ) => {
+
+						return contained;
+
+					};
+
+				}
+
+			}
+
 			let result = false;
 			for ( const root of this._roots ) {
 
 				setBuffer( root );
-				result = shapecast( 0, mesh, geometry, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
+				result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );
+				clearBuffer();
 
 				if ( result ) {
 
@@ -2847,8 +2951,6 @@
 
 			}
 
-			clearBuffer();
-
 			return result;
 
 		}
@@ -2861,8 +2963,10 @@
 
 			return this.shapecast(
 				mesh,
-				box => obb.intersectsBox( box ),
-				tri => obb.intersectsTriangle( tri )
+				{
+					intersectsBounds: box => obb.intersectsBox( box ),
+					intersectsTriangle: tri => obb.intersectsTriangle( tri )
+				}
 			);
 
 		}
@@ -2871,8 +2975,10 @@
 
 			return this.shapecast(
 				mesh,
-				box => sphere.intersectsBox( box ),
-				tri => tri.intersectsSphere( sphere )
+				{
+					intersectsBounds: box => sphere.intersectsBox( box ),
+					intersectsTriangle: tri => tri.intersectsSphere( sphere )
+				}
 			);
 
 		}
@@ -2908,66 +3014,80 @@
 			let closestDistance = Infinity;
 			this.shapecast(
 				mesh,
-				( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,
-				tri => {
+				{
 
-					if ( tri.needsUpdate ) {
+					boundsTraverseOrder: box => {
 
-						tri.update();
+						return obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );
 
-					}
+					},
+
+					intersectsBounds: ( box, isLeaf, score ) => {
 
-					const sphere1 = tri.sphere;
-					for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
+						return score < closestDistance && score < maxThreshold;
 
-						setTriangle( tri2, i2, index, pos );
-						tri2.a.applyMatrix4( geometryToBvh );
-						tri2.b.applyMatrix4( geometryToBvh );
-						tri2.c.applyMatrix4( geometryToBvh );
-						tri2.sphere.setFromPoints( tri2.points );
+					},
 
-						const sphere2 = tri2.sphere;
-						const sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;
-						if ( sphereDist > closestDistance ) {
+					intersectsTriangle: tri => {
 
-							continue;
+						if ( tri.needsUpdate ) {
+
+							tri.update();
 
 						}
 
-						tri2.update();
+						const sphere1 = tri.sphere;
+						for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
 
-						const dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );
-						if ( dist < closestDistance ) {
+							setTriangle( tri2, i2, index, pos );
+							tri2.a.applyMatrix4( geometryToBvh );
+							tri2.b.applyMatrix4( geometryToBvh );
+							tri2.c.applyMatrix4( geometryToBvh );
+							tri2.sphere.setFromPoints( tri2.points );
 
-							if ( target1 ) {
+							const sphere2 = tri2.sphere;
+							const sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;
+							if ( sphereDist > closestDistance ) {
 
-								target1.copy( tempTarget1 );
+								continue;
 
 							}
 
-							if ( target2 ) {
+							tri2.update();
 
-								target2.copy( tempTarget2 );
+							const dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );
+							if ( dist < closestDistance ) {
 
-							}
+								if ( target1 ) {
 
-							closestDistance = dist;
+									target1.copy( tempTarget1 );
 
-						}
+								}
 
-						// stop traversal if we find a point that's under the given threshold
-						if ( dist < minThreshold ) {
+								if ( target2 ) {
 
-							return true;
+									target2.copy( tempTarget2 );
+
+								}
+
+								closestDistance = dist;
+
+							}
+
+							// stop traversal if we find a point that's under the given threshold
+							if ( dist < minThreshold ) {
+
+								return true;
+
+							}
 
 						}
 
-					}
+						return false;
 
-					return false;
+					}
 
-				},
-				box => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )
+				}
 
 			);
 
@@ -2987,43 +3107,60 @@
 			// skip checking if over maxThreshold
 			// set minThreshold = maxThreshold to quickly check if a point is within a threshold
 			// returns Infinity if no value found
-			let closestDistance = Infinity;
+			const minThresholdSq = minThreshold * minThreshold;
+			const maxThresholdSq = maxThreshold * maxThreshold;
+			let closestDistanceSq = Infinity;
 			this.shapecast(
 
 				mesh,
-				( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,
-				tri => {
+				{
 
-					tri.closestPointToPoint( point, temp );
-					const dist = point.distanceTo( temp );
-					if ( dist < closestDistance ) {
+					boundsTraverseOrder: box => {
 
-						if ( target ) {
+						temp.copy( point ).clamp( box.min, box.max );
+						return temp.distanceToSquared( point );
 
-							target.copy( temp );
+					},
 
-						}
+					intersectsBounds: ( box, isLeaf, score ) => {
 
-						closestDistance = dist;
+						return score < closestDistanceSq && score < maxThresholdSq;
 
-					}
+					},
 
-					if ( dist < minThreshold ) {
+					intersectsTriangle: tri => {
 
-						return true;
+						tri.closestPointToPoint( point, temp );
+						const distSq = point.distanceToSquared( temp );
+						if ( distSq < closestDistanceSq ) {
 
-					} else {
+							if ( target ) {
 
-						return false;
+								target.copy( temp );
 
-					}
+							}
+
+							closestDistanceSq = distSq;
+
+						}
+
+						if ( distSq < minThresholdSq ) {
+
+							return true;
 
-				},
-				box => box.distanceToPoint( point )
+						} else {
+
+							return false;
+
+						}
+
+					},
+
+				}
 
 			);
 
-			return closestDistance;
+			return Math.sqrt( closestDistanceSq );
 
 		}
 
diff --git a/umd/index.js.map b/umd/index.js.map
index 250245b5f..eb497466f 100644
--- a/umd/index.js.map
+++ b/umd/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","export function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\r\nimport { CENTER } from './Constants.js';\r\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport {\r\n\traycast,\r\n\traycastFirst,\r\n\tshapecast,\r\n\tintersectsGeometry,\r\n\tsetBuffer,\r\n\tclearBuffer,\r\n} from './castFunctions.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\r\n\r\nconst obb = new OrientedBox();\r\nconst temp = new Vector3();\r\nconst tri2 = new SeparatingAxisTriangle();\r\nconst temp1 = new Vector3();\r\nconst temp2 = new Vector3();\r\nconst tempBox = new Box3();\r\n\r\nexport default class MeshBVH {\r\n\r\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\r\n\r\n\t\tconst rootData = bvh._roots;\r\n\t\tconst indexAttribute = geometry.getIndex();\r\n\t\tconst result = {\r\n\t\t\troots: rootData,\r\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\r\n\t\t};\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tstatic deserialize( data, geometry, setIndex = true ) {\r\n\r\n\t\tconst { index, roots } = data;\r\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\r\n\t\tbvh._roots = roots;\r\n\r\n\t\tif ( setIndex ) {\r\n\r\n\t\t\tconst indexAttribute = geometry.getIndex();\r\n\t\t\tif ( indexAttribute === null ) {\r\n\r\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\r\n\t\t\t\tgeometry.setIndex( newIndex );\r\n\r\n\t\t\t} else if ( indexAttribute.array !== index ) {\r\n\r\n\t\t\t\tindexAttribute.array.set( index );\r\n\t\t\t\tindexAttribute.needsUpdate = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn bvh;\r\n\r\n\t}\r\n\r\n\tconstructor( geometry, options = {} ) {\r\n\r\n\t\tif ( ! geometry.isBufferGeometry ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\r\n\r\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\r\n\r\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\r\n\r\n\t\t}\r\n\r\n\t\t// default options\r\n\t\toptions = Object.assign( {\r\n\r\n\t\t\tstrategy: CENTER,\r\n\t\t\tmaxDepth: 40,\r\n\t\t\tmaxLeafTris: 10,\r\n\t\t\tverbose: true,\r\n\r\n\t\t\tsetBoundingBox: true,\r\n\r\n\t\t\t// undocumented options\r\n\r\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\r\n\t\t\t[ SKIP_GENERATION ]: false\r\n\r\n\t\t}, options );\r\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\r\n\r\n\t\tthis._roots = null;\r\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\r\n\r\n\t\t\tthis._roots = buildPackedTree( geometry, options );\r\n\r\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\r\n\r\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// retain references to the geometry so we can use them it without having to\r\n\t\t// take a geometry reference in every function.\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\trefit() {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tconst indexArr = geometry.index.array;\r\n\t\tconst posArr = geometry.attributes.position.array;\r\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\r\n\t\tconst roots = this._roots;\r\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\r\n\r\n\t\t\tbuffer = roots[ i ];\r\n\t\t\tuint32Array = new Uint32Array( buffer );\r\n\t\t\tuint16Array = new Uint16Array( buffer );\r\n\t\t\tfloat32Array = new Float32Array( buffer );\r\n\t\t\t_traverse( 0 );\r\n\r\n\t\t}\r\n\r\n\t\tfunction _traverse( node32Index ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\r\n\t\t\t\tlet minx = Infinity;\r\n\t\t\t\tlet miny = Infinity;\r\n\t\t\t\tlet minz = Infinity;\r\n\t\t\t\tlet maxx = - Infinity;\r\n\t\t\t\tlet maxy = - Infinity;\r\n\t\t\t\tlet maxz = - Infinity;\r\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\r\n\r\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\r\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\r\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\r\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\r\n\r\n\t\t\t\t\tif ( x < minx ) minx = x;\r\n\t\t\t\t\tif ( x > maxx ) maxx = x;\r\n\r\n\t\t\t\t\tif ( y < miny ) miny = y;\r\n\t\t\t\t\tif ( y > maxy ) maxy = y;\r\n\r\n\t\t\t\t\tif ( z < minz ) minz = z;\r\n\t\t\t\t\tif ( z > maxz ) maxz = z;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\r\n\t\t\t\t) {\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + 8;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\r\n\t\t\t\tconst leftChange = _traverse( left );\r\n\t\t\t\tconst rightChange = _traverse( right );\r\n\t\t\t\tconst didChange = leftChange || rightChange;\r\n\r\n\t\t\t\tif ( didChange ) {\r\n\r\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\t\tconst lefti = left + i;\r\n\t\t\t\t\t\tconst righti = right + i;\r\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\r\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\r\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\r\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\r\n\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn didChange;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\ttraverse( callback, rootIndex = 0 ) {\r\n\r\n\t\tconst buffer = this._roots[ rootIndex ];\r\n\t\tconst uint32Array = new Uint32Array( buffer );\r\n\t\tconst uint16Array = new Uint16Array( buffer );\r\n\t\t_traverse( 0 );\r\n\r\n\t\tfunction _traverse( node32Index, depth = 0 ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\r\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\r\n\r\n\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t_traverse( left, depth + 1 );\r\n\t\t\t\t\t_traverse( right, depth + 1 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t/* Core Cast Functions */\r\n\traycast( mesh, raycaster, ray, intersects ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t}\r\n\r\n\traycastFirst( mesh, raycaster, ray ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tlet closestResult = null;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\r\n\r\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\r\n\r\n\t\t\t\tclosestResult = result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn closestResult;\r\n\r\n\t}\r\n\r\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\r\n\r\n\t\t// default the triangle intersection function\r\n\t\tintersectsTriangleFunc = intersectsTriangleFunc || ( ( tri, a, b, c, contained ) => contained );\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tclearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\t/* Derived Cast Functions */\r\n\tintersectsBox( mesh, box, boxToMesh ) {\r\n\r\n\t\tobb.set( box.min, box.max, boxToMesh );\r\n\t\tobb.update();\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => obb.intersectsBox( box ),\r\n\t\t\ttri => obb.intersectsTriangle( tri )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tintersectsSphere( mesh, sphere ) {\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => sphere.intersectsBox( box ),\r\n\t\t\ttri => tri.intersectsSphere( sphere )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t}\r\n\r\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\tobb.update();\r\n\r\n\t\tconst pos = otherGeometry.attributes.position;\r\n\t\tconst index = otherGeometry.index;\r\n\r\n\t\tlet tempTarget1 = null;\r\n\t\tlet tempTarget2 = null;\r\n\t\tif ( target1 ) {\r\n\r\n\t\t\ttempTarget1 = temp1;\r\n\r\n\t\t}\r\n\r\n\t\tif ( target2 ) {\r\n\r\n\t\t\ttempTarget2 = temp2;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\tif ( tri.needsUpdate ) {\r\n\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tconst sphere1 = tri.sphere;\r\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\r\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\r\n\r\n\t\t\t\t\tconst sphere2 = tri2.sphere;\r\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\r\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\r\n\r\n\t\t\t\t\t\tcontinue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\ttri2.update();\r\n\r\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\r\n\t\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\t\tif ( target1 ) {\r\n\r\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tif ( target2 ) {\r\n\r\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\r\n\t\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn false;\r\n\r\n\t\t\t},\r\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\t// early out if under minThreshold\r\n\t\t// skip checking if over maxThreshold\r\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\r\n\t\t// returns Infinity if no value found\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\ttri.closestPointToPoint( point, temp );\r\n\t\t\t\tconst dist = point.distanceTo( temp );\r\n\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\tif ( target ) {\r\n\r\n\t\t\t\t\t\ttarget.copy( temp );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t},\r\n\t\t\tbox => box.distanceToPoint( point )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tgetBoundingBox( target ) {\r\n\r\n\t\ttarget.makeEmpty();\r\n\r\n\t\tconst roots = this._roots;\r\n\t\troots.forEach( buffer => {\r\n\r\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\r\n\t\t\ttarget.union( tempBox );\r\n\r\n\t\t} );\r\n\r\n\t\treturn target;\r\n\r\n\t}\r\n\r\n}\r\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file
+{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\r\nexport const closestPointLineToLine = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\r\n\tconst dir1 = new Vector3();\r\n\tconst dir2 = new Vector3();\r\n\tconst v02 = new Vector3();\r\n\treturn function closestPointLineToLine( l1, l2, result ) {\r\n\r\n\t\tconst v0 = l1.start;\r\n\t\tconst v10 = dir1;\r\n\t\tconst v2 = l2.start;\r\n\t\tconst v32 = dir2;\r\n\r\n\t\tv02.subVectors( v0, v2 );\r\n\t\tdir1.subVectors( l1.end, l2.start );\r\n\t\tdir2.subVectors( l2.end, l2.start );\r\n\r\n\t\t// float d0232 = v02.Dot(v32);\r\n\t\tconst d0232 = v02.dot( v32 );\r\n\r\n\t\t// float d3210 = v32.Dot(v10);\r\n\t\tconst d3210 = v32.dot( v10 );\r\n\r\n\t\t// float d3232 = v32.Dot(v32);\r\n\t\tconst d3232 = v32.dot( v32 );\r\n\r\n\t\t// float d0210 = v02.Dot(v10);\r\n\t\tconst d0210 = v02.dot( v10 );\r\n\r\n\t\t// float d1010 = v10.Dot(v10);\r\n\t\tconst d1010 = v10.dot( v10 );\r\n\r\n\t\t// float denom = d1010*d3232 - d3210*d3210;\r\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\r\n\r\n\t\tlet d, d2;\r\n\t\tif ( denom !== 0 ) {\r\n\r\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\r\n\r\n\t\t} else {\r\n\r\n\t\t\td = 0;\r\n\r\n\t\t}\r\n\r\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\r\n\r\n\t\tresult.x = d;\r\n\t\tresult.y = d2;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const closestPointsSegmentToSegment = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\r\n\tconst paramResult = new Vector2();\r\n\tconst temp1 = new Vector3();\r\n\tconst temp2 = new Vector3();\r\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\r\n\r\n\t\tclosestPointLineToLine( l1, l2, paramResult );\r\n\r\n\t\tlet d = paramResult.x;\r\n\t\tlet d2 = paramResult.y;\r\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\tl1.at( d, target1 );\r\n\t\t\tl2.at( d2, target2 );\r\n\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d >= 0 && d <= 1 ) {\r\n\r\n\t\t\t// Only d2 is out of bounds.\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tl2.at( 0, target2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl2.at( 1, target2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\t// Only d is out of bounds.\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tl1.at( 0, target1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl1.at( 1, target1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\r\n\t\t\treturn;\r\n\r\n\t\t} else {\r\n\r\n\t\t\t// Both u and u2 are out of bounds.\r\n\t\t\tlet p;\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tp = l1.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp = l1.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tlet p2;\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tp2 = l2.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp2 = l2.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst closestPoint = temp1;\r\n\t\t\tconst closestPoint2 = temp2;\r\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\r\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\r\n\r\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\r\n\r\n\t\t\t\ttarget1.copy( closestPoint );\r\n\t\t\t\ttarget2.copy( p2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\ttarget1.copy( p );\r\n\t\t\t\ttarget2.copy( closestPoint2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nexport const sphereIntersectTriangle = ( function () {\r\n\r\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\r\n\tconst closestPointTemp = new Vector3();\r\n\tconst projectedPointTemp = new Vector3();\r\n\tconst planeTemp = new Plane();\r\n\tconst lineTemp = new Line3();\r\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\r\n\r\n\t\tconst { radius, center } = sphere;\r\n\t\tconst { a, b, c } = triangle;\r\n\r\n\t\t// phase 1\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = b;\r\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = b;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\t// phase 2\r\n\t\tconst plane = triangle.getPlane( planeTemp );\r\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\r\n\t\tif ( dp <= radius ) {\r\n\r\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\r\n\t\t\tconst cp = triangle.containsPoint( pp );\r\n\t\t\tif ( cp ) return true;\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\r\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\r\n\r\nexport class OrientedBox extends Box3 {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isOrientedBox = true;\r\n\t\tthis.matrix = new Matrix4();\r\n\t\tthis.invMatrix = new Matrix4();\r\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\r\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.sphere = new Sphere();\r\n\r\n\t}\r\n\r\n\tset( min, max, matrix ) {\r\n\r\n\t\tsuper.set( min, max );\r\n\t\tthis.matrix = matrix;\r\n\r\n\t}\r\n\r\n\tcopy( other ) {\r\n\r\n\t\tsuper.copy( other );\r\n\t\tthis.matrix.copy( other.matrix );\r\n\r\n\t}\r\n\r\n}\r\n\r\nOrientedBox.prototype.update = ( function () {\r\n\r\n\treturn function update() {\r\n\r\n\t\tconst matrix = this.matrix;\r\n\t\tconst min = this.min;\r\n\t\tconst max = this.max;\r\n\r\n\t\tconst points = this.points;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\r\n\t\t\t\t\tconst v = points[ i ];\r\n\t\t\t\t\tv.x = x ? max.x : min.x;\r\n\t\t\t\t\tv.y = y ? max.y : min.y;\r\n\t\t\t\t\tv.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tv.applyMatrix4( matrix );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst minVec = points[ 0 ];\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst index = 1 << i;\r\n\t\t\tconst pi = points[ index ];\r\n\r\n\t\t\taxis.subVectors( minVec, pi );\r\n\t\t\tsb.setFromPoints( axis, points );\r\n\r\n\t\t}\r\n\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\r\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\r\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\r\n\r\n\t\tthis.invMatrix.copy( this.matrix ).invert();\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsBox = ( function () {\r\n\r\n\tconst aabbBounds = new SeparatingAxisBounds();\r\n\treturn function intersectsBox( box ) {\r\n\r\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\r\n\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\r\n\t\taabbBounds.min = min.x;\r\n\t\taabbBounds.max = max.x;\r\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.y;\r\n\t\taabbBounds.max = max.y;\r\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.z;\r\n\t\taabbBounds.max = max.z;\r\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\taabbBounds.setFromBox( axis, box );\r\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri = new SeparatingAxisTriangle();\r\n\tconst pointsArr = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( triangle ) {\r\n\r\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri.copy( triangle );\r\n\t\t\tsaTri.update();\r\n\t\t\ttriangle = saTri;\r\n\r\n\t\t} else if ( triangle.needsUpdate ) {\r\n\r\n\t\t\ttriangle.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\r\n\t\tpointsArr[ 0 ] = triangle.a;\r\n\t\tpointsArr[ 1 ] = triangle.b;\r\n\t\tpointsArr[ 2 ] = triangle.c;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst sa = satAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst triSatBounds = triangle.satBounds;\r\n\t\tconst triSatAxes = triangle.satAxes;\r\n\t\tconst points = this.points;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = triSatBounds[ i ];\r\n\t\t\tconst sa = triSatAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.closestPointToPoint = ( function () {\r\n\r\n\treturn function closestPointToPoint( point, target1 ) {\r\n\r\n\t\ttarget1\r\n\t\t\t.copy( point )\r\n\t\t\t.applyMatrix4( this.invMatrix )\r\n\t\t\t.clamp( this.min, this.max )\r\n\t\t\t.applyMatrix4( this.matrix );\r\n\r\n\t\treturn target1;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nOrientedBox.prototype.distanceToBox = ( function () {\r\n\r\n\tconst xyzFields = [ 'x', 'y', 'z' ];\r\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\r\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\r\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.intersectsBox( box ) ) {\r\n\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tbox.getCenter( point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tconst threshold2 = threshold * threshold;\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst points = this.points;\r\n\r\n\r\n\t\t// iterate over every edge and compare distances\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check over all these points\r\n\t\tfor ( let i = 0; i < 8; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tpoint2.copy( p ).clamp( min, max );\r\n\r\n\t\t\tconst dist = p.distanceToSquared( point2 );\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( p );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// generate and check all line segment distances\r\n\t\tlet count = 0;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\r\n\r\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\r\n\r\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\r\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\r\n\r\n\t\t\t\t\t// get obb line segments\r\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst p1 = points[ index ];\r\n\t\t\t\t\tconst p2 = points[ index2 ];\r\n\t\t\t\t\tconst line1 = segments1[ count ];\r\n\t\t\t\t\tline1.set( p1, p2 );\r\n\r\n\r\n\t\t\t\t\t// get aabb line segments\r\n\t\t\t\t\tconst f1 = xyzFields[ i ];\r\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\r\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\r\n\t\t\t\t\tconst line2 = segments2[ count ];\r\n\t\t\t\t\tconst start = line2.start;\r\n\t\t\t\t\tconst end = line2.end;\r\n\r\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\r\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\r\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tcount ++;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check all the other boxes point\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\r\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\r\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\r\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 12; i ++ ) {\r\n\r\n\t\t\tconst l1 = segments1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\r\n\r\n\t\t\t\tconst l2 = segments2[ i2 ];\r\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\r\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsRangeFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\r\n\r\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\r\n\r\n\t\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\nconst triangle = new SeparatingAxisTriangle();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit( nodeIndices = null, terminationIndices = null ) {\n\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\n\n\t\t\tnodeIndices = new Set( nodeIndices );\n\n\t\t}\n\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\n\n\t\t\tterminationIndices = new Set( terminationIndices );\n\n\t\t}\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\t\t\t_traverse( 0 );\n\n\t\t}\n\n\t\tfunction _traverse( node32Index, force = false ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\tlet leftChange = false;\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( left );\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );\n\t\t\t\tif ( traverseLeft ) {\n\n\t\t\t\t\tleftChange = _traverse( left, forceLeft );\n\n\t\t\t\t}\n\n\t\t\t\tlet rightChange = false;\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( right );\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );\n\t\t\t\tif ( traverseRight ) {\n\n\t\t\t\t\trightChange = _traverse( right, forceRight );\n\n\t\t\t\t}\n\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\t\t\tclearBuffer();\n\n\t\t}\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\n\n\t\tconst geometry = this.geometry;\n\t\tif ( callbacks instanceof Function ) {\n\n\t\t\tif ( _intersectsTriangleFunc ) {\n\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\n\t\t\t\t// indices here.\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\n\n\t\t\t\t\tconst i3 = index * 3;\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\n\n\t\t\t\t};\n\n\n\t\t\t}\n\n\t\t\tcallbacks = {\n\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\n\t\t\t\tintersectsBounds: callbacks,\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\n\t\t\t\tintersectsRange: null,\n\n\t\t\t};\n\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );\n\n\t\t}\n\n\t\tlet {\n\t\t\tboundsTraverseOrder,\n\t\t\tintersectsBounds,\n\t\t\tintersectsRange,\n\t\t\tintersectsTriangle,\n\t\t} = callbacks;\n\n\t\tif ( intersectsRange && intersectsTriangle ) {\n\n\t\t\tconst originalIntersectsRange = intersectsRange;\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\n\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t} else if ( ! intersectsRange ) {\n\n\t\t\tif ( intersectsTriangle ) {\n\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t};\n\n\t\t\t} else {\n\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\n\n\t\t\t\t\treturn contained;\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t}\n\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttri2.update();\n\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tconst minThresholdSq = minThreshold * minThreshold;\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\n\t\tlet closestDistanceSq = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\n\t\t\t\t\treturn temp.distanceToSquared( point );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\n\n\t\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistanceSq = distSq;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file

From bc110c23baca102239c654143f6dfcee99d45ea5 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 13 May 2021 11:33:10 -0700
Subject: [PATCH 132/139] Add node index byte offset

---
 src/MeshBVH.js                | 29 ++++++++++++++++++++---------
 src/castFunctions.template.js | 11 +++++++----
 2 files changed, 27 insertions(+), 13 deletions(-)

diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index c4303bfe1..4a92acc55 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -137,6 +137,7 @@ export default class MeshBVH {
 		const indexArr = geometry.index.array;
 		const posArr = geometry.attributes.position.array;
 		let buffer, uint32Array, uint16Array, float32Array;
+		let byteOffset = 0;
 		const roots = this._roots;
 		for ( let i = 0, l = roots.length; i < l; i ++ ) {
 
@@ -144,11 +145,13 @@ export default class MeshBVH {
 			uint32Array = new Uint32Array( buffer );
 			uint16Array = new Uint16Array( buffer );
 			float32Array = new Float32Array( buffer );
-			_traverse( 0 );
+
+			_traverse( 0, byteOffset );
+			byteOffset += buffer.byteLength;
 
 		}
 
-		function _traverse( node32Index, force = false ) {
+		function _traverse( node32Index, byteOffset, force = false ) {
 
 			const node16Index = node32Index * 2;
 			const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
@@ -212,21 +215,26 @@ export default class MeshBVH {
 				const left = node32Index + 8;
 				const right = uint32Array[ node32Index + 6 ];
 
+				// the indentifying node indices provided by the shapecast function include offsets of all
+				// root buffers to guarantee they're unique between roots so offset left and right indices here.
+				const offsetLeft = left + byteOffset;
+				const offsetRight = right + byteOffset;
+
 				let leftChange = false;
-				let forceLeft = force || terminationIndices && terminationIndices.has( left );
-				let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );
+				let forceLeft = force || terminationIndices && terminationIndices.has( offsetLeft );
+				let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( offsetLeft ) : true );
 				if ( traverseLeft ) {
 
-					leftChange = _traverse( left, forceLeft );
+					leftChange = _traverse( left, byteOffset, forceLeft );
 
 				}
 
 				let rightChange = false;
-				let forceRight = force || terminationIndices && terminationIndices.has( right );
-				let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );
+				let forceRight = force || terminationIndices && terminationIndices.has( offsetRight );
+				let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( offsetRight ) : true );
 				if ( traverseRight ) {
 
-					rightChange = _traverse( right, forceRight );
+					rightChange = _traverse( right, byteOffset, forceRight );
 
 				}
 
@@ -432,10 +440,11 @@ export default class MeshBVH {
 		}
 
 		let result = false;
+		let byteOffset = 0;
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );
+			result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder, byteOffset );
 			clearBuffer();
 
 			if ( result ) {
@@ -444,6 +453,8 @@ export default class MeshBVH {
 
 			}
 
+			byteOffset += root.byteLength;
+
 		}
 
 		return result;
diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index e2672ea70..d79354bf2 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -136,6 +136,7 @@ export const shapecast = ( function () {
 		intersectsBoundsFunc,
 		intersectsRangeFunc,
 		nodeScoreFunc = null,
+		byteOffset = 0,
 		depth = 0,
 		triangle = _triangle,
 		cachedBox1 = _cachedBox1,
@@ -233,7 +234,7 @@ export const shapecast = ( function () {
 			}
 
 			const isC1Leaf = IS_LEAF( c1 * 2 );
-			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );
+			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, byteOffset + c1 );
 
 			let c1StopTraversal;
 			if ( c1Intersection === CONTAINED ) {
@@ -242,7 +243,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );
+				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, byteOffset + c1 );
 
 			} else {
 
@@ -255,6 +256,7 @@ export const shapecast = ( function () {
 						intersectsBoundsFunc,
 						intersectsRangeFunc,
 						nodeScoreFunc,
+						byteOffset,
 						depth + 1,
 						triangle,
 						cachedBox1,
@@ -271,7 +273,7 @@ export const shapecast = ( function () {
 			arrayToBox( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
 
 			const isC2Leaf = IS_LEAF( c2 * 2 );
-			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );
+			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, byteOffset + c2 );
 
 			let c2StopTraversal;
 			if ( c2Intersection === CONTAINED ) {
@@ -280,7 +282,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );
+				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, byteOffset + c2 );
 
 			} else {
 
@@ -293,6 +295,7 @@ export const shapecast = ( function () {
 						intersectsBoundsFunc,
 						intersectsRangeFunc,
 						nodeScoreFunc,
+						byteOffset,
 						depth + 1,
 						triangle,
 						cachedBox1,

From 7b0aadd8f101a0d5e0c138ba4b69f36ec81e8a72 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 13 May 2021 11:34:25 -0700
Subject: [PATCH 133/139] update variable name

---
 src/castFunctions.template.js | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/castFunctions.template.js b/src/castFunctions.template.js
index d79354bf2..f47eb1530 100644
--- a/src/castFunctions.template.js
+++ b/src/castFunctions.template.js
@@ -136,7 +136,7 @@ export const shapecast = ( function () {
 		intersectsBoundsFunc,
 		intersectsRangeFunc,
 		nodeScoreFunc = null,
-		byteOffset = 0,
+		nodeIndexByteOffset = 0, // offset for unique node identifier
 		depth = 0,
 		triangle = _triangle,
 		cachedBox1 = _cachedBox1,
@@ -234,7 +234,7 @@ export const shapecast = ( function () {
 			}
 
 			const isC1Leaf = IS_LEAF( c1 * 2 );
-			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, byteOffset + c1 );
+			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, nodeIndexByteOffset + c1 );
 
 			let c1StopTraversal;
 			if ( c1Intersection === CONTAINED ) {
@@ -243,7 +243,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, byteOffset + c1 );
+				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c1 );
 
 			} else {
 
@@ -256,7 +256,7 @@ export const shapecast = ( function () {
 						intersectsBoundsFunc,
 						intersectsRangeFunc,
 						nodeScoreFunc,
-						byteOffset,
+						nodeIndexByteOffset,
 						depth + 1,
 						triangle,
 						cachedBox1,
@@ -273,7 +273,7 @@ export const shapecast = ( function () {
 			arrayToBox( BOUNDING_DATA_INDEX( c2 ), float32Array, box2 );
 
 			const isC2Leaf = IS_LEAF( c2 * 2 );
-			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, byteOffset + c2 );
+			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, nodeIndexByteOffset + c2 );
 
 			let c2StopTraversal;
 			if ( c2Intersection === CONTAINED ) {
@@ -282,7 +282,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, byteOffset + c2 );
+				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c2 );
 
 			} else {
 
@@ -295,7 +295,7 @@ export const shapecast = ( function () {
 						intersectsBoundsFunc,
 						intersectsRangeFunc,
 						nodeScoreFunc,
-						byteOffset,
+						nodeIndexByteOffset,
 						depth + 1,
 						triangle,
 						cachedBox1,

From ed309d242163d0658c6e4049fe582019d50d9123 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 13 May 2021 11:48:02 -0700
Subject: [PATCH 134/139] Run build

---
 example/bundle/asyncGenerate.4a48c6e8.js      |  4 +-
 example/bundle/asyncGenerate.html             |  3 +-
 example/bundle/characterMovement.725f956b.js  |  4 +-
 example/bundle/collectTriangles.9c45819a.js   |  4 +-
 example/bundle/collectTriangles.html          |  3 +-
 example/bundle/distancecast.4107d8f2.js       |  4 +-
 example/bundle/distancecast.html              |  3 +-
 .../bundle/generateAsync.worker.13d14241.js   |  4 +-
 example/bundle/physics.50b811f1.js            |  4 +-
 example/bundle/randomSampleDebug.32ad2b43.js  |  4 +-
 example/bundle/raycast.88074831.js            |  4 +-
 example/bundle/raycast.html                   |  3 +-
 example/bundle/sculpt.493e9c78.js             |  4 +-
 example/bundle/selection.383a520f.js          |  4 +-
 example/bundle/shapecast.b93a7fe2.js          |  4 +-
 src/castFunctions.js                          | 11 +++--
 umd/index.js                                  | 40 +++++++++++++------
 umd/index.js.map                              |  2 +-
 18 files changed, 65 insertions(+), 44 deletions(-)

diff --git a/example/bundle/asyncGenerate.4a48c6e8.js b/example/bundle/asyncGenerate.4a48c6e8.js
index 5cf598b64..3eae58c01 100644
--- a/example/bundle/asyncGenerate.4a48c6e8.js
+++ b/example/bundle/asyncGenerate.4a48c6e8.js
@@ -30,9 +30,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=p[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=p[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=p[r+6]):(T=p[r+6],w=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[w+h]:M>=s[w+h+3])return A}var m=f(w,s,a,u)?c(w,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:i;function T(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var h=2*a,b=g,U=y,A=B;if(65535===U[h+15])return x(A[a+6],U[h+14],!1,p,a);var M,m,j,q,O=a+8,N=A[a+6],C=O,S=N;if(c&&(j=f,q=d,(0,t.arrayToBox)(C,b,j),(0,t.arrayToBox)(S,b,q),M=c(j),(m=c(q))<M)){C=N,S=O;var I=M;M=m,m=I,j=q}j||(j=f,(0,t.arrayToBox)(C,b,j));var D,E=l(j,65535===U[2*C+15],M,p+1,C);if(E===o.CONTAINED){var F=T(C);D=x(F,w(C)-F,!0,p+1,C)}else D=E&&r(C,s,u,l,x,c,p+1,v,f,d);if(D)return!0;q=d,(0,t.arrayToBox)(S,b,q);var G,_=l(q,65535===U[2*S+15],m,p+1,S);if(_===o.CONTAINED){var z=T(S);G=x(z,w(S)-z,!0,p+1,S)}else G=_&&r(S,s,u,l,x,c,p+1,v,f,d);return!!G}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,w,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=h,exports.clearBuffer=w,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var h=p[r+6];f(h,l,a,u)&&x(h,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,h,w=p[r+7],b=l[w],U=a.direction[b]>=0;U?(T=r+8,h=p[r+6]):(T=p[r+6],h=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[h+w]:M>=s[h+w+3])return A}var m=f(h,s,a,u)?c(h,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:0,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:e,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:n,T=arguments.length>10&&void 0!==arguments[10]?arguments[10]:i;function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*a,U=g,A=y,M=B;if(65535===A[b+15])return x(M[a+6],A[b+14],!1,v,a);var m,j,q,O,N=a+8,C=M[a+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),m=c(q),(j=c(O))<m)){S=C,I=N;var D=m;m=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=l(q,65535===A[2*S+15],m,v+1,p+S);if(F===o.CONTAINED){var G=h(S);E=x(G,w(S)-G,!0,v+1,p+S)}else E=F&&r(S,s,u,l,x,c,p,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=l(O,65535===A[2*I+15],j,v+1,p+I);if(z===o.CONTAINED){var P=h(I);_=x(P,w(I)-P,!0,v+1,p+I)}else _=z&&r(I,s,u,l,x,c,p,v+1,f,d,T);return!!_}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,h=g,w=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===w[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,h,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,h,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=w[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,h,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function h(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function w(){d=null,g=null,y=null,B=null,T.length&&h(T.pop())}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),r=require("./Constants.js"),t=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,r){var t;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(t=l(e))||r&&e&&"number"==typeof e.length){t&&(e=t);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){t=e[Symbol.iterator]()},n:function(){var e=t.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==t.return||t.return()}finally{if(s)throw a}}}}function l(e,r){if(e){if("string"==typeof e)return c(e,r);var t=Object.prototype.toString.call(e).slice(8,-1);return"Object"===t&&e.constructor&&(t=e.constructor.name),"Map"===t||"Set"===t?Array.from(e):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?c(e,r):void 0}}function c(e,r){(null==r||r>e.length)&&(r=e.length);for(var t=0,n=new Array(r);t<r;t++)n[t]=e[t];return n}function f(e,r,t){return r in e?Object.defineProperty(e,r,{value:t,enumerable:!0,configurable:!0,writable:!0}):e[r]=t,e}function d(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function v(e,r){for(var t=0;t<r.length;t++){var n=r[t];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,r,t){return r&&v(e.prototype,r),t&&v(e,t),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,B=new i.SeparatingAxisTriangle,b=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:r.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,t.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,r){var t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return 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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"dbR2":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.GenerateMeshBVHWorker=void 0;var e=require("three"),r=n(require("../MeshBVH.js"));function n(e){return e&&e.__esModule?e:{default:e}}function t(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function i(e,r){for(var n=0;n<r.length;n++){var t=r[n];t.enumerable=t.enumerable||!1,t.configurable=!0,"value"in t&&(t.writable=!0),Object.defineProperty(e,t.key,t)}}function o(e,r,n){return r&&i(e.prototype,r),n&&i(e,n),e}var a=function(){function n(){t(this,n),this.running=!1,this.worker=new Worker("generateAsync.worker.13d14241.js")}return o(n,[{key:"generate",value:function(n){var t=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(this.running)throw new Error("GenerateMeshBVHWorker: Already running job.");var o=this.worker;return this.running=!0,new Promise(function(a,u){o.onmessage=function(s){t.running=!1,o.onmessage=null;var f=s.data,l=f.serialized,d=f.position,c=f.error;if(c)u(new Error(c));else{var h=r.default.deserialize(l,n,!1),g=Object.assign({setBoundingBox:!0},i);n.attributes.position.array=d,n.index&&(n.index.array=l.index),g.setBoundingBox&&(n.boundingBox=h.getBoundingBox(new e.Box3)),a(h)}};var s=n.index?n.index.array:null,f=n.attributes.position.array;if(f.isInterleavedBufferAttribute||s&&s.isInterleavedBufferAttribute)throw new Error("GenerateMeshBVHWorker: InterleavedBufferAttribute are not supported for the geometry attributes.");var l=[f];s&&l.push(s),o.postMessage({index:s,position:f,options:i},l.map(function(e){return e.buffer}))})}},{key:"terminate",value:function(){this.worker.terminate()}}]),n}();exports.GenerateMeshBVHWorker=a;
 },{"three":"dKqR","../MeshBVH.js":"nIyY","./generateAsync.worker.js":[["generateAsync.worker.13d14241.js","HHJX"],"HHJX"]}],"jNwr":[function(require,module,exports) {
diff --git a/example/bundle/asyncGenerate.html b/example/bundle/asyncGenerate.html
index 079691e54..c05dcda16 100644
--- a/example/bundle/asyncGenerate.html
+++ b/example/bundle/asyncGenerate.html
@@ -1 +1,2 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script> </body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script>
+</body></html>
\ No newline at end of file
diff --git a/example/bundle/characterMovement.725f956b.js b/example/bundle/characterMovement.725f956b.js
index 731011ac5..c87f5e675 100644
--- a/example/bundle/characterMovement.725f956b.js
+++ b/example/bundle/characterMovement.725f956b.js
@@ -38,9 +38,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=p[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=p[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=p[r+6]):(T=p[r+6],w=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[w+h]:M>=s[w+h+3])return A}var m=f(w,s,a,u)?c(w,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:i;function T(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var h=2*a,b=g,U=y,A=B;if(65535===U[h+15])return x(A[a+6],U[h+14],!1,p,a);var M,m,j,q,O=a+8,N=A[a+6],C=O,S=N;if(c&&(j=f,q=d,(0,t.arrayToBox)(C,b,j),(0,t.arrayToBox)(S,b,q),M=c(j),(m=c(q))<M)){C=N,S=O;var I=M;M=m,m=I,j=q}j||(j=f,(0,t.arrayToBox)(C,b,j));var D,E=l(j,65535===U[2*C+15],M,p+1,C);if(E===o.CONTAINED){var F=T(C);D=x(F,w(C)-F,!0,p+1,C)}else D=E&&r(C,s,u,l,x,c,p+1,v,f,d);if(D)return!0;q=d,(0,t.arrayToBox)(S,b,q);var G,_=l(q,65535===U[2*S+15],m,p+1,S);if(_===o.CONTAINED){var z=T(S);G=x(z,w(S)-z,!0,p+1,S)}else G=_&&r(S,s,u,l,x,c,p+1,v,f,d);return!!G}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,w,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=h,exports.clearBuffer=w,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var h=p[r+6];f(h,l,a,u)&&x(h,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,h,w=p[r+7],b=l[w],U=a.direction[b]>=0;U?(T=r+8,h=p[r+6]):(T=p[r+6],h=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[h+w]:M>=s[h+w+3])return A}var m=f(h,s,a,u)?c(h,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:0,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:e,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:n,T=arguments.length>10&&void 0!==arguments[10]?arguments[10]:i;function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*a,U=g,A=y,M=B;if(65535===A[b+15])return x(M[a+6],A[b+14],!1,v,a);var m,j,q,O,N=a+8,C=M[a+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),m=c(q),(j=c(O))<m)){S=C,I=N;var D=m;m=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=l(q,65535===A[2*S+15],m,v+1,p+S);if(F===o.CONTAINED){var G=h(S);E=x(G,w(S)-G,!0,v+1,p+S)}else E=F&&r(S,s,u,l,x,c,p,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=l(O,65535===A[2*I+15],j,v+1,p+I);if(z===o.CONTAINED){var P=h(I);_=x(P,w(I)-P,!0,v+1,p+I)}else _=z&&r(I,s,u,l,x,c,p,v+1,f,d,T);return!!_}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,h=g,w=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===w[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,h,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,h,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=w[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,h,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function h(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function w(){d=null,g=null,y=null,B=null,T.length&&h(T.pop())}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),r=require("./Constants.js"),t=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,r){var t;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(t=l(e))||r&&e&&"number"==typeof e.length){t&&(e=t);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){t=e[Symbol.iterator]()},n:function(){var e=t.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==t.return||t.return()}finally{if(s)throw a}}}}function l(e,r){if(e){if("string"==typeof e)return c(e,r);var t=Object.prototype.toString.call(e).slice(8,-1);return"Object"===t&&e.constructor&&(t=e.constructor.name),"Map"===t||"Set"===t?Array.from(e):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?c(e,r):void 0}}function c(e,r){(null==r||r>e.length)&&(r=e.length);for(var t=0,n=new Array(r);t<r;t++)n[t]=e[t];return n}function f(e,r,t){return r in e?Object.defineProperty(e,r,{value:t,enumerable:!0,configurable:!0,writable:!0}):e[r]=t,e}function d(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function v(e,r){for(var t=0;t<r.length;t++){var n=r[t];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,r,t){return r&&v(e.prototype,r),t&&v(e,t),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,B=new i.SeparatingAxisTriangle,b=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:r.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,t.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,r){var t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/collectTriangles.9c45819a.js b/example/bundle/collectTriangles.9c45819a.js
index ce5de85ae..7efcd7d0e 100644
--- a/example/bundle/collectTriangles.9c45819a.js
+++ b/example/bundle/collectTriangles.9c45819a.js
@@ -557,9 +557,9 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=p[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=p[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=p[r+6]):(T=p[r+6],w=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[w+h]:M>=s[w+h+3])return A}var m=f(w,s,a,u)?c(w,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:i;function T(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var h=2*a,b=g,U=y,A=B;if(65535===U[h+15])return x(A[a+6],U[h+14],!1,p,a);var M,m,j,q,O=a+8,N=A[a+6],C=O,S=N;if(c&&(j=f,q=d,(0,t.arrayToBox)(C,b,j),(0,t.arrayToBox)(S,b,q),M=c(j),(m=c(q))<M)){C=N,S=O;var I=M;M=m,m=I,j=q}j||(j=f,(0,t.arrayToBox)(C,b,j));var D,E=l(j,65535===U[2*C+15],M,p+1,C);if(E===o.CONTAINED){var F=T(C);D=x(F,w(C)-F,!0,p+1,C)}else D=E&&r(C,s,u,l,x,c,p+1,v,f,d);if(D)return!0;q=d,(0,t.arrayToBox)(S,b,q);var G,_=l(q,65535===U[2*S+15],m,p+1,S);if(_===o.CONTAINED){var z=T(S);G=x(z,w(S)-z,!0,p+1,S)}else G=_&&r(S,s,u,l,x,c,p+1,v,f,d);return!!G}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,w,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=h,exports.clearBuffer=w,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var h=p[r+6];f(h,l,a,u)&&x(h,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,h,w=p[r+7],b=l[w],U=a.direction[b]>=0;U?(T=r+8,h=p[r+6]):(T=p[r+6],h=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[h+w]:M>=s[h+w+3])return A}var m=f(h,s,a,u)?c(h,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:0,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:e,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:n,T=arguments.length>10&&void 0!==arguments[10]?arguments[10]:i;function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*a,U=g,A=y,M=B;if(65535===A[b+15])return x(M[a+6],A[b+14],!1,v,a);var m,j,q,O,N=a+8,C=M[a+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),m=c(q),(j=c(O))<m)){S=C,I=N;var D=m;m=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=l(q,65535===A[2*S+15],m,v+1,p+S);if(F===o.CONTAINED){var G=h(S);E=x(G,w(S)-G,!0,v+1,p+S)}else E=F&&r(S,s,u,l,x,c,p,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=l(O,65535===A[2*I+15],j,v+1,p+I);if(z===o.CONTAINED){var P=h(I);_=x(P,w(I)-P,!0,v+1,p+I)}else _=z&&r(I,s,u,l,x,c,p,v+1,f,d,T);return!!_}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,h=g,w=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===w[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,h,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,h,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=w[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,h,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function h(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function w(){d=null,g=null,y=null,B=null,T.length&&h(T.pop())}
 },{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),r=require("./Constants.js"),t=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,r){var t;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(t=l(e))||r&&e&&"number"==typeof e.length){t&&(e=t);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){t=e[Symbol.iterator]()},n:function(){var e=t.next();return 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t=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=r.getIndex();return{roots:n,index:t?i.array.slice():i.array}}},{key:"deserialize",value:function(r,t){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=r.index,o=r.roots,s=new n(t,f({},h,!0));if(s._roots=o,i){var u=t.getIndex();if(null===u){var l=new e.BufferAttribute(r.index,1,!1);t.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),r&&Array.isArray(r)&&(r=new Set(r));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=this._roots,f=0,d=c.length;f<d;f++)n=c[f],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),v(0);function v(n){var s=arguments.length>1&&void 0!==arguments[1]&&arguments[1],c=2*n;if(a[c+15]===t.IS_LEAFNODE_FLAG){for(var f=i[n+6],d=1/0,y=1/0,h=1/0,g=-1/0,p=-1/0,B=-1/0,b=3*f,m=3*(f+a[c+14]);b<m;b++){var x=3*u[b],T=l[x+0],w=l[x+1],A=l[x+2];T<d&&(d=T),T>g&&(g=T),w<y&&(y=w),w>p&&(p=w),A<h&&(h=A),A>B&&(B=A)}return(o[n+0]!==d||o[n+1]!==y||o[n+2]!==h||o[n+3]!==g||o[n+4]!==p||o[n+5]!==B)&&(o[n+0]=d,o[n+1]=y,o[n+2]=h,o[n+3]=g,o[n+4]=p,o[n+5]=B,!0)}var k=n+8,S=i[n+6],O=!1,_=s||r&&r.has(k);(_||!e||e.has(k))&&(O=v(k,_));var E=!1,j=s||r&&r.has(S);(j||!e||e.has(S))&&(E=v(S,j));var P=O||E;if(P)for(var F=0;F<3;F++){var M=k+F,U=S+F,I=o[M],q=o[M+3],G=o[U],V=o[U+3];o[n+F]=I<G?I:G,o[n+F+3]=q>V?q:V}return P}}},{key:"traverse",value:function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[r],i=new Uint32Array(n),a=new Uint16Array(n);!function r(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===t.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new 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i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. 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r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/collectTriangles.html b/example/bundle/collectTriangles.html
index 3d754f1b8..fad8efae5 100644
--- a/example/bundle/collectTriangles.html
+++ b/example/bundle/collectTriangles.html
@@ -1 +1,2 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="collectTriangles.9c45819a.js"></script> </body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="collectTriangles.9c45819a.js"></script>
+</body></html>
\ No newline at end of file
diff --git a/example/bundle/distancecast.4107d8f2.js b/example/bundle/distancecast.4107d8f2.js
index 6fa950ca8..50e7d3186 100644
--- a/example/bundle/distancecast.4107d8f2.js
+++ b/example/bundle/distancecast.4107d8f2.js
@@ -563,9 +563,9 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=w,exports.clearBuffer=h,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var w=p[r+6];f(w,l,a,u)&&x(w,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,w,h=p[r+7],b=l[h],U=a.direction[b]>=0;U?(T=r+8,w=p[r+6]):(T=p[r+6],w=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[w+h]:M>=s[w+h+3])return A}var m=f(w,s,a,u)?c(w,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:e,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:n,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:i;function T(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var h=2*a,b=g,U=y,A=B;if(65535===U[h+15])return x(A[a+6],U[h+14],!1,p,a);var M,m,j,q,O=a+8,N=A[a+6],C=O,S=N;if(c&&(j=f,q=d,(0,t.arrayToBox)(C,b,j),(0,t.arrayToBox)(S,b,q),M=c(j),(m=c(q))<M)){C=N,S=O;var I=M;M=m,m=I,j=q}j||(j=f,(0,t.arrayToBox)(C,b,j));var D,E=l(j,65535===U[2*C+15],M,p+1,C);if(E===o.CONTAINED){var F=T(C);D=x(F,w(C)-F,!0,p+1,C)}else D=E&&r(C,s,u,l,x,c,p+1,v,f,d);if(D)return!0;q=d,(0,t.arrayToBox)(S,b,q);var G,_=l(q,65535===U[2*S+15],m,p+1,S);if(_===o.CONTAINED){var z=T(S);G=x(z,w(S)-z,!0,p+1,S)}else G=_&&r(S,s,u,l,x,c,p+1,v,f,d);return!!G}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,w=g,h=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===h[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,w,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,w,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=h[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,w,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function w(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function h(){d=null,g=null,y=null,B=null,T.length&&w(T.pop())}
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=h,exports.clearBuffer=w,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var h=p[r+6];f(h,l,a,u)&&x(h,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,h,w=p[r+7],b=l[w],U=a.direction[b]>=0;U?(T=r+8,h=p[r+6]):(T=p[r+6],h=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[h+w]:M>=s[h+w+3])return A}var m=f(h,s,a,u)?c(h,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:0,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:e,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:n,T=arguments.length>10&&void 0!==arguments[10]?arguments[10]:i;function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*a,U=g,A=y,M=B;if(65535===A[b+15])return x(M[a+6],A[b+14],!1,v,a);var m,j,q,O,N=a+8,C=M[a+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),m=c(q),(j=c(O))<m)){S=C,I=N;var D=m;m=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=l(q,65535===A[2*S+15],m,v+1,p+S);if(F===o.CONTAINED){var G=h(S);E=x(G,w(S)-G,!0,v+1,p+S)}else E=F&&r(S,s,u,l,x,c,p,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=l(O,65535===A[2*I+15],j,v+1,p+I);if(z===o.CONTAINED){var P=h(I);_=x(P,w(I)-P,!0,v+1,p+I)}else _=z&&r(I,s,u,l,x,c,p,v+1,f,d,T);return!!_}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,h=g,w=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===w[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,h,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,h,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=w[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,h,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function h(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function w(){d=null,g=null,y=null,B=null,T.length&&h(T.pop())}
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Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/distancecast.html b/example/bundle/distancecast.html
index 06205f5d6..defeeaae8 100644
--- a/example/bundle/distancecast.html
+++ b/example/bundle/distancecast.html
@@ -1 +1,2 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script> </body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script>
+</body></html>
\ No newline at end of file
diff --git a/example/bundle/generateAsync.worker.13d14241.js b/example/bundle/generateAsync.worker.13d14241.js
index 43d4657df..bb95c3e7c 100644
--- a/example/bundle/generateAsync.worker.13d14241.js
+++ b/example/bundle/generateAsync.worker.13d14241.js
@@ -25,9 +25,9 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"HHJX":[function(require,module,exports) {
 var global = arguments[3];
 var e=arguments[3],r=require("three"),t=i(require("../MeshBVH.js"));function i(e){return e&&e.__esModule?e:{default:e}}e.onmessage=function(i){var n=i.data,s=n.index,u=n.position,a=n.options;try{var o=new r.BufferGeometry;o.setAttribute("position",new r.BufferAttribute(u,3,!1)),s&&o.setIndex(new r.BufferAttribute(s,1,!1)),a.lazyGeneration=!1;var f=new t.default(o,a),l=t.default.serialize(f,o,!1);e.postMessage({error:null,serialized:l,position:u},[l.index.buffer,u.buffer])}catch(d){e.postMessage({error:d,serialized:null})}};
diff --git a/example/bundle/physics.50b811f1.js b/example/bundle/physics.50b811f1.js
index a0eb13e5c..ca5937cc2 100644
--- a/example/bundle/physics.50b811f1.js
+++ b/example/bundle/physics.50b811f1.js
@@ -36,9 +36,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/randomSampleDebug.32ad2b43.js b/example/bundle/randomSampleDebug.32ad2b43.js
index d393d8d9b..9e707691d 100644
--- a/example/bundle/randomSampleDebug.32ad2b43.js
+++ b/example/bundle/randomSampleDebug.32ad2b43.js
@@ -25,9 +25,9 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/raycast.88074831.js b/example/bundle/raycast.88074831.js
index e21fba4f9..0b829ad30 100644
--- a/example/bundle/raycast.88074831.js
+++ b/example/bundle/raycast.88074831.js
@@ -558,9 +558,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/example/bundle/raycast.html b/example/bundle/raycast.html
index 4886af3ff..41b90acce 100644
--- a/example/bundle/raycast.html
+++ b/example/bundle/raycast.html
@@ -1 +1,2 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script> </body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script>
+</body></html>
\ No newline at end of file
diff --git a/example/bundle/sculpt.493e9c78.js b/example/bundle/sculpt.493e9c78.js
index 6771c722c..c362d6206 100644
--- a/example/bundle/sculpt.493e9c78.js
+++ b/example/bundle/sculpt.493e9c78.js
@@ -559,9 +559,9 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/selection.383a520f.js b/example/bundle/selection.383a520f.js
index a8976723a..181dffa82 100644
--- a/example/bundle/selection.383a520f.js
+++ b/example/bundle/selection.383a520f.js
@@ -32,9 +32,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
diff --git a/example/bundle/shapecast.b93a7fe2.js b/example/bundle/shapecast.b93a7fe2.js
index 886cf515d..7947e04eb 100644
--- a/example/bundle/shapecast.b93a7fe2.js
+++ b/example/bundle/shapecast.b93a7fe2.js
@@ -562,9 +562,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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Float32Array(n,4*o,6),c,f)}else{var d=o+t.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(r(d,s+1),r(v,s+1))}}(0)}},{key:"raycast",value:function(e,r,t,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,r,t,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,r,t){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,r,t);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,r,t){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,r,t),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,r,t,n){var i=this.geometry;if(r instanceof Function){if(t){var a=t;t=function(e,r,t,n){var i=3*r;return a(e,i,i+1,i+2,t,n)}}r={boundsTraverseOrder:n,intersectsBounds:r,intersectsTriangle:t,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=r,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,r,t,n,a){return!!y(e,r,t,n,a)||(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}}else d||(d=v?function(e,r,t,n){return(0,s.iterateOverTriangles)(e,r,i,v,t,n,T)}:function(e,r,t){return t});var h,g=!1,p=u(this._roots);try{for(p.s();!(h=p.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c),(0,o.clearBuffer)(),g)break}}catch(b){p.e(b)}finally{p.f()}return g}},{key:"intersectsBox",value:function(e,r,t){return g.set(r.min,r.max,t),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,r){return this.shapecast(e,{intersectsBounds:function(e){return r.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(r)}})}},{key:"closestPointToGeometry",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;r.boundingBox||r.computeBoundingBox(),g.set(r.boundingBox.min,r.boundingBox.max,t),g.update();var u=r.attributes.position,l=r.index,c=null,f=null;n&&(c=b),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,r,t){return t<d&&t<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var r=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(B,s,l,u),B.a.applyMatrix4(t),B.b.applyMatrix4(t),B.c.applyMatrix4(t),B.sphere.setFromPoints(B.points);var y=B.sphere;if(!(y.center.distanceTo(r.center)-y.radius-r.radius>d)){B.update();var h=e.distanceToTriangle(B,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,r,t,n,i){return this.closestPointToGeometry(e,r,t,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,r,t){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(r).clamp(e.min,e.max),p.distanceToSquared(r)},intersectsBounds:function(e,r,t){return t<s&&t<o},intersectsTriangle:function(e){e.closestPointToPoint(r,p);var n=r.distanceToSquared(p);return n<s&&(t&&t.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,r,t,n){return this.closestPointToPoint(e,r,null,t,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(r){(0,s.arrayToBox)(0,new Float32Array(r),x),e.union(x)}),e}}]),n}();exports.default=w;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r;if("undefined"==typeof Symbol||null==e[Symbol.iterator]){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=e[Symbol.iterator]()},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,m=new e.Vector3,x=new e.Box3,T=new i.SeparatingAxisTriangle,w=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,null,[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,m=3*d,x=3*(d+a[f+14]);m<x;m++){var T=3*u[m],w=l[T+0],A=l[T+1],k=l[T+2];w<v&&(v=w),w>p&&(p=w),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,O=i[n+6],_=S+s,E=O+s,j=!1,P=c||t&&t.has(_);(P||!e||e.has(_))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(O,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=O+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
diff --git a/src/castFunctions.js b/src/castFunctions.js
index a5d126977..0b7952869 100644
--- a/src/castFunctions.js
+++ b/src/castFunctions.js
@@ -134,6 +134,7 @@ export const shapecast = ( function () {
 		intersectsBoundsFunc,
 		intersectsRangeFunc,
 		nodeScoreFunc = null,
+		nodeIndexByteOffset = 0, // offset for unique node identifier
 		depth = 0,
 		triangle = _triangle,
 		cachedBox1 = _cachedBox1,
@@ -231,7 +232,7 @@ export const shapecast = ( function () {
 			}
 
 			const isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );
-			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );
+			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, nodeIndexByteOffset + c1 );
 
 			let c1StopTraversal;
 			if ( c1Intersection === CONTAINED ) {
@@ -240,7 +241,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );
+				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c1 );
 
 			} else {
 
@@ -253,6 +254,7 @@ export const shapecast = ( function () {
 						intersectsBoundsFunc,
 						intersectsRangeFunc,
 						nodeScoreFunc,
+						nodeIndexByteOffset,
 						depth + 1,
 						triangle,
 						cachedBox1,
@@ -269,7 +271,7 @@ export const shapecast = ( function () {
 			arrayToBox( c2, float32Array, box2 );
 
 			const isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );
-			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );
+			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, nodeIndexByteOffset + c2 );
 
 			let c2StopTraversal;
 			if ( c2Intersection === CONTAINED ) {
@@ -278,7 +280,7 @@ export const shapecast = ( function () {
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );
+				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c2 );
 
 			} else {
 
@@ -291,6 +293,7 @@ export const shapecast = ( function () {
 						intersectsBoundsFunc,
 						intersectsRangeFunc,
 						nodeScoreFunc,
+						nodeIndexByteOffset,
 						depth + 1,
 						triangle,
 						cachedBox1,
diff --git a/umd/index.js b/umd/index.js
index 7cb3b1cc5..b21369dd1 100644
--- a/umd/index.js
+++ b/umd/index.js
@@ -2161,6 +2161,7 @@
 			intersectsBoundsFunc,
 			intersectsRangeFunc,
 			nodeScoreFunc = null,
+			nodeIndexByteOffset = 0, // offset for unique node identifier
 			depth = 0,
 			triangle = _triangle,
 			cachedBox1 = _cachedBox1,
@@ -2258,7 +2259,7 @@
 				}
 
 				const isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );
-				const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );
+				const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, nodeIndexByteOffset + c1 );
 
 				let c1StopTraversal;
 				if ( c1Intersection === CONTAINED ) {
@@ -2267,7 +2268,7 @@
 					const end = getRightEndOffset( c1 );
 					const count = end - offset;
 
-					c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );
+					c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c1 );
 
 				} else {
 
@@ -2280,6 +2281,7 @@
 							intersectsBoundsFunc,
 							intersectsRangeFunc,
 							nodeScoreFunc,
+							nodeIndexByteOffset,
 							depth + 1,
 							triangle,
 							cachedBox1,
@@ -2296,7 +2298,7 @@
 				arrayToBox$1( c2, float32Array, box2 );
 
 				const isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );
-				const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );
+				const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, nodeIndexByteOffset + c2 );
 
 				let c2StopTraversal;
 				if ( c2Intersection === CONTAINED ) {
@@ -2305,7 +2307,7 @@
 					const end = getRightEndOffset( c2 );
 					const count = end - offset;
 
-					c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );
+					c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c2 );
 
 				} else {
 
@@ -2318,6 +2320,7 @@
 							intersectsBoundsFunc,
 							intersectsRangeFunc,
 							nodeScoreFunc,
+							nodeIndexByteOffset,
 							depth + 1,
 							triangle,
 							cachedBox1,
@@ -2642,6 +2645,7 @@
 			const indexArr = geometry.index.array;
 			const posArr = geometry.attributes.position.array;
 			let buffer, uint32Array, uint16Array, float32Array;
+			let byteOffset = 0;
 			const roots = this._roots;
 			for ( let i = 0, l = roots.length; i < l; i ++ ) {
 
@@ -2649,11 +2653,13 @@
 				uint32Array = new Uint32Array( buffer );
 				uint16Array = new Uint16Array( buffer );
 				float32Array = new Float32Array( buffer );
-				_traverse( 0 );
+
+				_traverse( 0, byteOffset );
+				byteOffset += buffer.byteLength;
 
 			}
 
-			function _traverse( node32Index, force = false ) {
+			function _traverse( node32Index, byteOffset, force = false ) {
 
 				const node16Index = node32Index * 2;
 				const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
@@ -2717,21 +2723,26 @@
 					const left = node32Index + 8;
 					const right = uint32Array[ node32Index + 6 ];
 
+					// the indentifying node indices provided by the shapecast function include offsets of all
+					// root buffers to guarantee they're unique between roots so offset left and right indices here.
+					const offsetLeft = left + byteOffset;
+					const offsetRight = right + byteOffset;
+
 					let leftChange = false;
-					let forceLeft = force || terminationIndices && terminationIndices.has( left );
-					let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );
+					let forceLeft = force || terminationIndices && terminationIndices.has( offsetLeft );
+					let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( offsetLeft ) : true );
 					if ( traverseLeft ) {
 
-						leftChange = _traverse( left, forceLeft );
+						leftChange = _traverse( left, byteOffset, forceLeft );
 
 					}
 
 					let rightChange = false;
-					let forceRight = force || terminationIndices && terminationIndices.has( right );
-					let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );
+					let forceRight = force || terminationIndices && terminationIndices.has( offsetRight );
+					let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( offsetRight ) : true );
 					if ( traverseRight ) {
 
-						rightChange = _traverse( right, forceRight );
+						rightChange = _traverse( right, byteOffset, forceRight );
 
 					}
 
@@ -2937,10 +2948,11 @@
 			}
 
 			let result = false;
+			let byteOffset = 0;
 			for ( const root of this._roots ) {
 
 				setBuffer( root );
-				result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );
+				result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder, byteOffset );
 				clearBuffer();
 
 				if ( result ) {
@@ -2949,6 +2961,8 @@
 
 				}
 
+				byteOffset += root.byteLength;
+
 			}
 
 			return result;
diff --git a/umd/index.js.map b/umd/index.js.map
index eb497466f..095e59869 100644
--- a/umd/index.js.map
+++ b/umd/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\r\nexport const closestPointLineToLine = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\r\n\tconst dir1 = new Vector3();\r\n\tconst dir2 = new Vector3();\r\n\tconst v02 = new Vector3();\r\n\treturn function closestPointLineToLine( l1, l2, result ) {\r\n\r\n\t\tconst v0 = l1.start;\r\n\t\tconst v10 = dir1;\r\n\t\tconst v2 = l2.start;\r\n\t\tconst v32 = dir2;\r\n\r\n\t\tv02.subVectors( v0, v2 );\r\n\t\tdir1.subVectors( l1.end, l2.start );\r\n\t\tdir2.subVectors( l2.end, l2.start );\r\n\r\n\t\t// float d0232 = v02.Dot(v32);\r\n\t\tconst d0232 = v02.dot( v32 );\r\n\r\n\t\t// float d3210 = v32.Dot(v10);\r\n\t\tconst d3210 = v32.dot( v10 );\r\n\r\n\t\t// float d3232 = v32.Dot(v32);\r\n\t\tconst d3232 = v32.dot( v32 );\r\n\r\n\t\t// float d0210 = v02.Dot(v10);\r\n\t\tconst d0210 = v02.dot( v10 );\r\n\r\n\t\t// float d1010 = v10.Dot(v10);\r\n\t\tconst d1010 = v10.dot( v10 );\r\n\r\n\t\t// float denom = d1010*d3232 - d3210*d3210;\r\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\r\n\r\n\t\tlet d, d2;\r\n\t\tif ( denom !== 0 ) {\r\n\r\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\r\n\r\n\t\t} else {\r\n\r\n\t\t\td = 0;\r\n\r\n\t\t}\r\n\r\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\r\n\r\n\t\tresult.x = d;\r\n\t\tresult.y = d2;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const closestPointsSegmentToSegment = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\r\n\tconst paramResult = new Vector2();\r\n\tconst temp1 = new Vector3();\r\n\tconst temp2 = new Vector3();\r\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\r\n\r\n\t\tclosestPointLineToLine( l1, l2, paramResult );\r\n\r\n\t\tlet d = paramResult.x;\r\n\t\tlet d2 = paramResult.y;\r\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\tl1.at( d, target1 );\r\n\t\t\tl2.at( d2, target2 );\r\n\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d >= 0 && d <= 1 ) {\r\n\r\n\t\t\t// Only d2 is out of bounds.\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tl2.at( 0, target2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl2.at( 1, target2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\t// Only d is out of bounds.\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tl1.at( 0, target1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl1.at( 1, target1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\r\n\t\t\treturn;\r\n\r\n\t\t} else {\r\n\r\n\t\t\t// Both u and u2 are out of bounds.\r\n\t\t\tlet p;\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tp = l1.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp = l1.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tlet p2;\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tp2 = l2.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp2 = l2.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst closestPoint = temp1;\r\n\t\t\tconst closestPoint2 = temp2;\r\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\r\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\r\n\r\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\r\n\r\n\t\t\t\ttarget1.copy( closestPoint );\r\n\t\t\t\ttarget2.copy( p2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\ttarget1.copy( p );\r\n\t\t\t\ttarget2.copy( closestPoint2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nexport const sphereIntersectTriangle = ( function () {\r\n\r\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\r\n\tconst closestPointTemp = new Vector3();\r\n\tconst projectedPointTemp = new Vector3();\r\n\tconst planeTemp = new Plane();\r\n\tconst lineTemp = new Line3();\r\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\r\n\r\n\t\tconst { radius, center } = sphere;\r\n\t\tconst { a, b, c } = triangle;\r\n\r\n\t\t// phase 1\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = b;\r\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = b;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\t// phase 2\r\n\t\tconst plane = triangle.getPlane( planeTemp );\r\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\r\n\t\tif ( dp <= radius ) {\r\n\r\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\r\n\t\t\tconst cp = triangle.containsPoint( pp );\r\n\t\t\tif ( cp ) return true;\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\r\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\r\n\r\nexport class OrientedBox extends Box3 {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isOrientedBox = true;\r\n\t\tthis.matrix = new Matrix4();\r\n\t\tthis.invMatrix = new Matrix4();\r\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\r\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.sphere = new Sphere();\r\n\r\n\t}\r\n\r\n\tset( min, max, matrix ) {\r\n\r\n\t\tsuper.set( min, max );\r\n\t\tthis.matrix = matrix;\r\n\r\n\t}\r\n\r\n\tcopy( other ) {\r\n\r\n\t\tsuper.copy( other );\r\n\t\tthis.matrix.copy( other.matrix );\r\n\r\n\t}\r\n\r\n}\r\n\r\nOrientedBox.prototype.update = ( function () {\r\n\r\n\treturn function update() {\r\n\r\n\t\tconst matrix = this.matrix;\r\n\t\tconst min = this.min;\r\n\t\tconst max = this.max;\r\n\r\n\t\tconst points = this.points;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\r\n\t\t\t\t\tconst v = points[ i ];\r\n\t\t\t\t\tv.x = x ? max.x : min.x;\r\n\t\t\t\t\tv.y = y ? max.y : min.y;\r\n\t\t\t\t\tv.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tv.applyMatrix4( matrix );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst minVec = points[ 0 ];\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst index = 1 << i;\r\n\t\t\tconst pi = points[ index ];\r\n\r\n\t\t\taxis.subVectors( minVec, pi );\r\n\t\t\tsb.setFromPoints( axis, points );\r\n\r\n\t\t}\r\n\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\r\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\r\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\r\n\r\n\t\tthis.invMatrix.copy( this.matrix ).invert();\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsBox = ( function () {\r\n\r\n\tconst aabbBounds = new SeparatingAxisBounds();\r\n\treturn function intersectsBox( box ) {\r\n\r\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\r\n\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\r\n\t\taabbBounds.min = min.x;\r\n\t\taabbBounds.max = max.x;\r\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.y;\r\n\t\taabbBounds.max = max.y;\r\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.z;\r\n\t\taabbBounds.max = max.z;\r\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\taabbBounds.setFromBox( axis, box );\r\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri = new SeparatingAxisTriangle();\r\n\tconst pointsArr = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( triangle ) {\r\n\r\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri.copy( triangle );\r\n\t\t\tsaTri.update();\r\n\t\t\ttriangle = saTri;\r\n\r\n\t\t} else if ( triangle.needsUpdate ) {\r\n\r\n\t\t\ttriangle.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\r\n\t\tpointsArr[ 0 ] = triangle.a;\r\n\t\tpointsArr[ 1 ] = triangle.b;\r\n\t\tpointsArr[ 2 ] = triangle.c;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst sa = satAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst triSatBounds = triangle.satBounds;\r\n\t\tconst triSatAxes = triangle.satAxes;\r\n\t\tconst points = this.points;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = triSatBounds[ i ];\r\n\t\t\tconst sa = triSatAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.closestPointToPoint = ( function () {\r\n\r\n\treturn function closestPointToPoint( point, target1 ) {\r\n\r\n\t\ttarget1\r\n\t\t\t.copy( point )\r\n\t\t\t.applyMatrix4( this.invMatrix )\r\n\t\t\t.clamp( this.min, this.max )\r\n\t\t\t.applyMatrix4( this.matrix );\r\n\r\n\t\treturn target1;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nOrientedBox.prototype.distanceToBox = ( function () {\r\n\r\n\tconst xyzFields = [ 'x', 'y', 'z' ];\r\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\r\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\r\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.intersectsBox( box ) ) {\r\n\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tbox.getCenter( point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tconst threshold2 = threshold * threshold;\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst points = this.points;\r\n\r\n\r\n\t\t// iterate over every edge and compare distances\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check over all these points\r\n\t\tfor ( let i = 0; i < 8; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tpoint2.copy( p ).clamp( min, max );\r\n\r\n\t\t\tconst dist = p.distanceToSquared( point2 );\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( p );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// generate and check all line segment distances\r\n\t\tlet count = 0;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\r\n\r\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\r\n\r\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\r\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\r\n\r\n\t\t\t\t\t// get obb line segments\r\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst p1 = points[ index ];\r\n\t\t\t\t\tconst p2 = points[ index2 ];\r\n\t\t\t\t\tconst line1 = segments1[ count ];\r\n\t\t\t\t\tline1.set( p1, p2 );\r\n\r\n\r\n\t\t\t\t\t// get aabb line segments\r\n\t\t\t\t\tconst f1 = xyzFields[ i ];\r\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\r\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\r\n\t\t\t\t\tconst line2 = segments2[ count ];\r\n\t\t\t\t\tconst start = line2.start;\r\n\t\t\t\t\tconst end = line2.end;\r\n\r\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\r\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\r\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tcount ++;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check all the other boxes point\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\r\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\r\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\r\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 12; i ++ ) {\r\n\r\n\t\t\tconst l1 = segments1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\r\n\r\n\t\t\t\tconst l2 = segments2[ i2 ];\r\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\r\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsRangeFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\r\n\r\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\r\n\r\n\t\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\nconst triangle = new SeparatingAxisTriangle();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit( nodeIndices = null, terminationIndices = null ) {\n\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\n\n\t\t\tnodeIndices = new Set( nodeIndices );\n\n\t\t}\n\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\n\n\t\t\tterminationIndices = new Set( terminationIndices );\n\n\t\t}\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\t\t\t_traverse( 0 );\n\n\t\t}\n\n\t\tfunction _traverse( node32Index, force = false ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\tlet leftChange = false;\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( left );\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );\n\t\t\t\tif ( traverseLeft ) {\n\n\t\t\t\t\tleftChange = _traverse( left, forceLeft );\n\n\t\t\t\t}\n\n\t\t\t\tlet rightChange = false;\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( right );\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );\n\t\t\t\tif ( traverseRight ) {\n\n\t\t\t\t\trightChange = _traverse( right, forceRight );\n\n\t\t\t\t}\n\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\t\t\tclearBuffer();\n\n\t\t}\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\n\n\t\tconst geometry = this.geometry;\n\t\tif ( callbacks instanceof Function ) {\n\n\t\t\tif ( _intersectsTriangleFunc ) {\n\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\n\t\t\t\t// indices here.\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\n\n\t\t\t\t\tconst i3 = index * 3;\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\n\n\t\t\t\t};\n\n\n\t\t\t}\n\n\t\t\tcallbacks = {\n\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\n\t\t\t\tintersectsBounds: callbacks,\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\n\t\t\t\tintersectsRange: null,\n\n\t\t\t};\n\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );\n\n\t\t}\n\n\t\tlet {\n\t\t\tboundsTraverseOrder,\n\t\t\tintersectsBounds,\n\t\t\tintersectsRange,\n\t\t\tintersectsTriangle,\n\t\t} = callbacks;\n\n\t\tif ( intersectsRange && intersectsTriangle ) {\n\n\t\t\tconst originalIntersectsRange = intersectsRange;\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\n\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t} else if ( ! intersectsRange ) {\n\n\t\t\tif ( intersectsTriangle ) {\n\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t};\n\n\t\t\t} else {\n\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\n\n\t\t\t\t\treturn contained;\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t}\n\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttri2.update();\n\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tconst minThresholdSq = minThreshold * minThreshold;\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\n\t\tlet closestDistanceSq = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\n\t\t\t\t\treturn temp.distanceToSquared( point );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\n\n\t\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistanceSq = distSq;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file
+{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\n\n// For speed and readability this script is processed to replace the macro-like calls\n// with inline buffer reads. See generate-cast-functions.js.\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\n\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { CONTAINED } from './Constants.js';\n\nconst boundingBox = new Box3();\nconst boxIntersection = new Vector3();\nconst xyzFields = [ 'x', 'y', 'z' ];\n\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\n\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\n\tif ( isLeaf ) {\n\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\n\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\n\n\t} else {\n\n\t\tconst leftIndex = nodeIndex32 + 8;\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\n\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\n\n\t\t}\n\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\n\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\n\n\t\t}\n\n\t}\n\n}\n\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\n\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\n\tif ( isLeaf ) {\n\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\n\n\t} else {\n\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\n\t\tconst rayDir = ray.direction[ xyzAxis ];\n\t\tconst leftToRight = rayDir >= 0;\n\n\t\t// c1 is the child to check first\n\t\tlet c1, c2;\n\t\tif ( leftToRight ) {\n\n\t\t\tc1 = nodeIndex32 + 8;\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\n\n\t\t} else {\n\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\n\t\t\tc2 = nodeIndex32 + 8;\n\n\t\t}\n\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\n\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\n\t\tif ( c1Result ) {\n\n\t\t\t// check if the point is within the second bounds\n\t\t\tconst point = c1Result.point[ xyzAxis ];\n\t\t\tconst isOutside = leftToRight ?\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\n\n\t\t\tif ( isOutside ) {\n\n\t\t\t\treturn c1Result;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// either there was no intersection in the first node, or there could still be a closer\n\t\t// intersection in the second, so check the second node and then take the better of the two\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\n\n\t\tif ( c1Result && c2Result ) {\n\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\n\n\t\t} else {\n\n\t\t\treturn c1Result || c2Result || null;\n\n\t\t}\n\n\t}\n\n}\n\nexport const shapecast = ( function () {\n\n\tconst _triangle = new SeparatingAxisTriangle();\n\tconst _cachedBox1 = new Box3();\n\tconst _cachedBox2 = new Box3();\n\n\treturn function shapecast(\n\t\tnodeIndex32,\n\t\tmesh,\n\t\tgeometry,\n\t\tintersectsBoundsFunc,\n\t\tintersectsRangeFunc,\n\t\tnodeScoreFunc = null,\n\t\tnodeIndexByteOffset = 0, // offset for unique node identifier\n\t\tdepth = 0,\n\t\ttriangle = _triangle,\n\t\tcachedBox1 = _cachedBox1,\n\t\tcachedBox2 = _cachedBox2\n\t) {\n\n\t\t// Define these inside the function so it has access to the local variables needed\n\t\t// when converting to the buffer equivalents\n\t\tfunction getLeftOffset( nodeIndex32 ) {\n\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\t\t// traverse until we find a leaf\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\n\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\n\n\t\t\t}\n\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\n\n\t\t}\n\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\n\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\t\t// traverse until we find a leaf\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\n\n\t\t\t\t// adjust offset to point to the right node\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\n\n\t\t\t}\n\n\t\t\t// return the end offset of the triangle range\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\n\n\t\t}\n\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\n\t\tif ( isLeaf ) {\n\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\n\n\t\t} else {\n\n\t\t\tconst left = nodeIndex32 + 8;\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\n\t\t\tlet c1 = left;\n\t\t\tlet c2 = right;\n\n\t\t\tlet score1, score2;\n\t\t\tlet box1, box2;\n\t\t\tif ( nodeScoreFunc ) {\n\n\t\t\t\tbox1 = cachedBox1;\n\t\t\t\tbox2 = cachedBox2;\n\n\t\t\t\t// bounding data is not offset\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\n\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\n\n\t\t\t\tif ( score2 < score1 ) {\n\n\t\t\t\t\tc1 = right;\n\t\t\t\t\tc2 = left;\n\n\t\t\t\t\tconst temp = score1;\n\t\t\t\t\tscore1 = score2;\n\t\t\t\t\tscore2 = temp;\n\n\t\t\t\t\tbox1 = box2;\n\t\t\t\t\t// box2 is always set before use below\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Check box 1 intersection\n\t\t\tif ( ! box1 ) {\n\n\t\t\t\tbox1 = cachedBox1;\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\n\n\t\t\t}\n\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, nodeIndexByteOffset + c1 );\n\n\t\t\tlet c1StopTraversal;\n\t\t\tif ( c1Intersection === CONTAINED ) {\n\n\t\t\t\tconst offset = getLeftOffset( c1 );\n\t\t\t\tconst end = getRightEndOffset( c1 );\n\t\t\t\tconst count = end - offset;\n\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c1 );\n\n\t\t\t} else {\n\n\t\t\t\tc1StopTraversal =\n\t\t\t\t\tc1Intersection &&\n\t\t\t\t\tshapecast(\n\t\t\t\t\t\tc1,\n\t\t\t\t\t\tmesh,\n\t\t\t\t\t\tgeometry,\n\t\t\t\t\t\tintersectsBoundsFunc,\n\t\t\t\t\t\tintersectsRangeFunc,\n\t\t\t\t\t\tnodeScoreFunc,\n\t\t\t\t\t\tnodeIndexByteOffset,\n\t\t\t\t\t\tdepth + 1,\n\t\t\t\t\t\ttriangle,\n\t\t\t\t\t\tcachedBox1,\n\t\t\t\t\t\tcachedBox2\n\t\t\t\t\t);\n\n\t\t\t}\n\n\t\t\tif ( c1StopTraversal ) return true;\n\n\t\t\t// Check box 2 intersection\n\t\t\t// cached box2 will have been overwritten by previous traversal\n\t\t\tbox2 = cachedBox2;\n\t\t\tarrayToBox( c2, float32Array, box2 );\n\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, nodeIndexByteOffset + c2 );\n\n\t\t\tlet c2StopTraversal;\n\t\t\tif ( c2Intersection === CONTAINED ) {\n\n\t\t\t\tconst offset = getLeftOffset( c2 );\n\t\t\t\tconst end = getRightEndOffset( c2 );\n\t\t\t\tconst count = end - offset;\n\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c2 );\n\n\t\t\t} else {\n\n\t\t\t\tc2StopTraversal =\n\t\t\t\t\tc2Intersection &&\n\t\t\t\t\tshapecast(\n\t\t\t\t\t\tc2,\n\t\t\t\t\t\tmesh,\n\t\t\t\t\t\tgeometry,\n\t\t\t\t\t\tintersectsBoundsFunc,\n\t\t\t\t\t\tintersectsRangeFunc,\n\t\t\t\t\t\tnodeScoreFunc,\n\t\t\t\t\t\tnodeIndexByteOffset,\n\t\t\t\t\t\tdepth + 1,\n\t\t\t\t\t\ttriangle,\n\t\t\t\t\t\tcachedBox1,\n\t\t\t\t\t\tcachedBox2\n\t\t\t\t\t);\n\n\t\t\t}\n\n\t\t\tif ( c2StopTraversal ) return true;\n\n\t\t\treturn false;\n\n\t\t}\n\n\t};\n\n} )();\n\nexport const intersectsGeometry = ( function () {\n\n\tconst triangle = new SeparatingAxisTriangle();\n\tconst triangle2 = new SeparatingAxisTriangle();\n\tconst cachedMesh = new Mesh();\n\tconst invertedMat = new Matrix4();\n\n\tconst obb = new OrientedBox();\n\tconst obb2 = new OrientedBox();\n\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\n\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\tif ( cachedObb === null ) {\n\n\t\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\t\totherGeometry.computeBoundingBox();\n\n\t\t\t}\n\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\t\tobb.update();\n\t\t\tcachedObb = obb;\n\n\t\t}\n\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\n\t\tif ( isLeaf ) {\n\n\t\t\tconst thisGeometry = geometry;\n\t\t\tconst thisIndex = thisGeometry.index;\n\t\t\tconst thisPos = thisGeometry.attributes.position;\n\n\t\t\tconst index = otherGeometry.index;\n\t\t\tconst pos = otherGeometry.attributes.position;\n\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\n\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\n\t\t\t// here.\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\n\n\t\t\tif ( otherGeometry.boundsTree ) {\n\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\n\t\t\t\tobb2.matrix.copy( invertedMat );\n\t\t\t\tobb2.update();\n\n\t\t\t\tcachedMesh.geometry = otherGeometry;\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\n\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\n\n\t\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\n\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\n\t\t\t\t\t\t\ttriangle2.update();\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\n\n\t\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t} );\n\t\t\t\tcachedMesh.geometry = null;\n\n\t\t\t\treturn res;\n\n\t\t\t} else {\n\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\n\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\n\t\t\t\t\ttriangle.update();\n\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\n\t\t\t\t\t\ttriangle2.update();\n\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tconst left = nodeIndex32 + 8;\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\n\n\t\t\tarrayToBox( left, float32Array, boundingBox );\n\t\t\tconst leftIntersection =\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\n\n\t\t\tif ( leftIntersection ) return true;\n\n\t\t\tarrayToBox( right, float32Array, boundingBox );\n\t\t\tconst rightIntersection =\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\n\n\t\t\tif ( rightIntersection ) return true;\n\n\t\t\treturn false;\n\n\t\t}\n\n\t};\n\n} )();\n\nfunction intersectRay( nodeIndex32, array, ray, target ) {\n\n\tarrayToBox( nodeIndex32, array, boundingBox );\n\treturn ray.intersectBox( boundingBox, target );\n\n}\n\nconst bufferStack = [];\nlet _prevBuffer;\nlet _float32Array;\nlet _uint16Array;\nlet _uint32Array;\nexport function setBuffer( buffer ) {\n\n\tif ( _prevBuffer ) {\n\n\t\tbufferStack.push( _prevBuffer );\n\n\t}\n\n\t_prevBuffer = buffer;\n\t_float32Array = new Float32Array( buffer );\n\t_uint16Array = new Uint16Array( buffer );\n\t_uint32Array = new Uint32Array( buffer );\n\n}\n\nexport function clearBuffer() {\n\n\t_prevBuffer = null;\n\t_float32Array = null;\n\t_uint16Array = null;\n\t_uint32Array = null;\n\n\tif ( bufferStack.length ) {\n\n\t\tsetBuffer( bufferStack.pop() );\n\n\t}\n\n}\n","import { Vector3, BufferAttribute, Box3 } from 'three';\r\nimport { CENTER } from './Constants.js';\r\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport {\r\n\traycast,\r\n\traycastFirst,\r\n\tshapecast,\r\n\tintersectsGeometry,\r\n\tsetBuffer,\r\n\tclearBuffer,\r\n} from './castFunctions.js';\r\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\r\n\r\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\r\n\r\nconst obb = new OrientedBox();\r\nconst temp = new Vector3();\r\nconst tri2 = new SeparatingAxisTriangle();\r\nconst temp1 = new Vector3();\r\nconst temp2 = new Vector3();\r\nconst tempBox = new Box3();\r\nconst triangle = new SeparatingAxisTriangle();\r\n\r\nexport default class MeshBVH {\r\n\r\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\r\n\r\n\t\tconst rootData = bvh._roots;\r\n\t\tconst indexAttribute = geometry.getIndex();\r\n\t\tconst result = {\r\n\t\t\troots: rootData,\r\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\r\n\t\t};\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tstatic deserialize( data, geometry, setIndex = true ) {\r\n\r\n\t\tconst { index, roots } = data;\r\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\r\n\t\tbvh._roots = roots;\r\n\r\n\t\tif ( setIndex ) {\r\n\r\n\t\t\tconst indexAttribute = geometry.getIndex();\r\n\t\t\tif ( indexAttribute === null ) {\r\n\r\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\r\n\t\t\t\tgeometry.setIndex( newIndex );\r\n\r\n\t\t\t} else if ( indexAttribute.array !== index ) {\r\n\r\n\t\t\t\tindexAttribute.array.set( index );\r\n\t\t\t\tindexAttribute.needsUpdate = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn bvh;\r\n\r\n\t}\r\n\r\n\tconstructor( geometry, options = {} ) {\r\n\r\n\t\tif ( ! geometry.isBufferGeometry ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\r\n\r\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\r\n\r\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\r\n\r\n\t\t}\r\n\r\n\t\t// default options\r\n\t\toptions = Object.assign( {\r\n\r\n\t\t\tstrategy: CENTER,\r\n\t\t\tmaxDepth: 40,\r\n\t\t\tmaxLeafTris: 10,\r\n\t\t\tverbose: true,\r\n\r\n\t\t\tsetBoundingBox: true,\r\n\r\n\t\t\t// undocumented options\r\n\r\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\r\n\t\t\t[ SKIP_GENERATION ]: false\r\n\r\n\t\t}, options );\r\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\r\n\r\n\t\tthis._roots = null;\r\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\r\n\r\n\t\t\tthis._roots = buildPackedTree( geometry, options );\r\n\r\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\r\n\r\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// retain references to the geometry so we can use them it without having to\r\n\t\t// take a geometry reference in every function.\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\trefit( nodeIndices = null, terminationIndices = null ) {\r\n\r\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\r\n\r\n\t\t\tnodeIndices = new Set( nodeIndices );\r\n\r\n\t\t}\r\n\r\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\r\n\r\n\t\t\tterminationIndices = new Set( terminationIndices );\r\n\r\n\t\t}\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tconst indexArr = geometry.index.array;\r\n\t\tconst posArr = geometry.attributes.position.array;\r\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\r\n\t\tlet byteOffset = 0;\r\n\t\tconst roots = this._roots;\r\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\r\n\r\n\t\t\tbuffer = roots[ i ];\r\n\t\t\tuint32Array = new Uint32Array( buffer );\r\n\t\t\tuint16Array = new Uint16Array( buffer );\r\n\t\t\tfloat32Array = new Float32Array( buffer );\r\n\r\n\t\t\t_traverse( 0, byteOffset );\r\n\t\t\tbyteOffset += buffer.byteLength;\r\n\r\n\t\t}\r\n\r\n\t\tfunction _traverse( node32Index, byteOffset, force = false ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\r\n\t\t\t\tlet minx = Infinity;\r\n\t\t\t\tlet miny = Infinity;\r\n\t\t\t\tlet minz = Infinity;\r\n\t\t\t\tlet maxx = - Infinity;\r\n\t\t\t\tlet maxy = - Infinity;\r\n\t\t\t\tlet maxz = - Infinity;\r\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\r\n\r\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\r\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\r\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\r\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\r\n\r\n\t\t\t\t\tif ( x < minx ) minx = x;\r\n\t\t\t\t\tif ( x > maxx ) maxx = x;\r\n\r\n\t\t\t\t\tif ( y < miny ) miny = y;\r\n\t\t\t\t\tif ( y > maxy ) maxy = y;\r\n\r\n\t\t\t\t\tif ( z < minz ) minz = z;\r\n\t\t\t\t\tif ( z > maxz ) maxz = z;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif (\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\r\n\t\t\t\t) {\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\r\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\r\n\r\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\r\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\r\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + 8;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\r\n\t\t\t\t// the indentifying node indices provided by the shapecast function include offsets of all\r\n\t\t\t\t// root buffers to guarantee they're unique between roots so offset left and right indices here.\r\n\t\t\t\tconst offsetLeft = left + byteOffset;\r\n\t\t\t\tconst offsetRight = right + byteOffset;\r\n\r\n\t\t\t\tlet leftChange = false;\r\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( offsetLeft );\r\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( offsetLeft ) : true );\r\n\t\t\t\tif ( traverseLeft ) {\r\n\r\n\t\t\t\t\tleftChange = _traverse( left, byteOffset, forceLeft );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tlet rightChange = false;\r\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( offsetRight );\r\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( offsetRight ) : true );\r\n\t\t\t\tif ( traverseRight ) {\r\n\r\n\t\t\t\t\trightChange = _traverse( right, byteOffset, forceRight );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tconst didChange = leftChange || rightChange;\r\n\r\n\t\t\t\tif ( didChange ) {\r\n\r\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\t\tconst lefti = left + i;\r\n\t\t\t\t\t\tconst righti = right + i;\r\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\r\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\r\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\r\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\r\n\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\r\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn didChange;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\ttraverse( callback, rootIndex = 0 ) {\r\n\r\n\t\tconst buffer = this._roots[ rootIndex ];\r\n\t\tconst uint32Array = new Uint32Array( buffer );\r\n\t\tconst uint16Array = new Uint16Array( buffer );\r\n\t\t_traverse( 0 );\r\n\r\n\t\tfunction _traverse( node32Index, depth = 0 ) {\r\n\r\n\t\t\tconst node16Index = node32Index * 2;\r\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\r\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\r\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\r\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\r\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\r\n\r\n\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t_traverse( left, depth + 1 );\r\n\t\t\t\t\t_traverse( right, depth + 1 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t/* Core Cast Functions */\r\n\traycast( mesh, raycaster, ray, intersects ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\r\n\t\t\tclearBuffer();\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\traycastFirst( mesh, raycaster, ray ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tlet closestResult = null;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\r\n\t\t\tclearBuffer();\r\n\r\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\r\n\r\n\t\t\t\tclosestResult = result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\r\n\t\treturn closestResult;\r\n\r\n\t}\r\n\r\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\r\n\t\t\tclearBuffer();\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\r\n\r\n\t\tconst geometry = this.geometry;\r\n\t\tif ( callbacks instanceof Function ) {\r\n\r\n\t\t\tif ( _intersectsTriangleFunc ) {\r\n\r\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\r\n\t\t\t\t// indices here.\r\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\r\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\r\n\r\n\t\t\t\t\tconst i3 = index * 3;\r\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\r\n\r\n\t\t\t\t};\r\n\r\n\r\n\t\t\t}\r\n\r\n\t\t\tcallbacks = {\r\n\r\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\r\n\t\t\t\tintersectsBounds: callbacks,\r\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\r\n\t\t\t\tintersectsRange: null,\r\n\r\n\t\t\t};\r\n\r\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );\r\n\r\n\t\t}\r\n\r\n\t\tlet {\r\n\t\t\tboundsTraverseOrder,\r\n\t\t\tintersectsBounds,\r\n\t\t\tintersectsRange,\r\n\t\t\tintersectsTriangle,\r\n\t\t} = callbacks;\r\n\r\n\t\tif ( intersectsRange && intersectsTriangle ) {\r\n\r\n\t\t\tconst originalIntersectsRange = intersectsRange;\r\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\r\n\r\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\r\n\r\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t};\r\n\r\n\t\t} else if ( ! intersectsRange ) {\r\n\r\n\t\t\tif ( intersectsTriangle ) {\r\n\r\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\r\n\r\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\r\n\r\n\t\t\t\t};\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\r\n\r\n\t\t\t\t\treturn contained;\r\n\r\n\t\t\t\t};\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tlet result = false;\r\n\t\tlet byteOffset = 0;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tsetBuffer( root );\r\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder, byteOffset );\r\n\t\t\tclearBuffer();\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbyteOffset += root.byteLength;\r\n\r\n\t\t}\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\t/* Derived Cast Functions */\r\n\tintersectsBox( mesh, box, boxToMesh ) {\r\n\r\n\t\tobb.set( box.min, box.max, boxToMesh );\r\n\t\tobb.update();\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t{\r\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\r\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\r\n\t\t\t}\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tintersectsSphere( mesh, sphere ) {\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t{\r\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\r\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\r\n\t\t\t}\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t}\r\n\r\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\tobb.update();\r\n\r\n\t\tconst pos = otherGeometry.attributes.position;\r\n\t\tconst index = otherGeometry.index;\r\n\r\n\t\tlet tempTarget1 = null;\r\n\t\tlet tempTarget2 = null;\r\n\t\tif ( target1 ) {\r\n\r\n\t\t\ttempTarget1 = temp1;\r\n\r\n\t\t}\r\n\r\n\t\tif ( target2 ) {\r\n\r\n\t\t\ttempTarget2 = temp2;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t{\r\n\r\n\t\t\t\tboundsTraverseOrder: box => {\r\n\r\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\r\n\r\n\t\t\t\t},\r\n\r\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\r\n\r\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\r\n\r\n\t\t\t\t},\r\n\r\n\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\tif ( tri.needsUpdate ) {\r\n\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tconst sphere1 = tri.sphere;\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\r\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\r\n\r\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\r\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\r\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\r\n\r\n\t\t\t\t\t\t\tcontinue;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\ttri2.update();\r\n\r\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\r\n\t\t\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\t\t\tif ( target1 ) {\r\n\r\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t\tif ( target2 ) {\r\n\r\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\r\n\t\t\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\t// early out if under minThreshold\r\n\t\t// skip checking if over maxThreshold\r\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\r\n\t\t// returns Infinity if no value found\r\n\t\tconst minThresholdSq = minThreshold * minThreshold;\r\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\t\tthis.shapecast(\r\n\r\n\t\t\tmesh,\r\n\t\t\t{\r\n\r\n\t\t\t\tboundsTraverseOrder: box => {\r\n\r\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\r\n\t\t\t\t\treturn temp.distanceToSquared( point );\r\n\r\n\t\t\t\t},\r\n\r\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\r\n\r\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\r\n\r\n\t\t\t\t},\r\n\r\n\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\r\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\r\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tif ( target ) {\r\n\r\n\t\t\t\t\t\t\ttarget.copy( temp );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = distSq;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\r\n\r\n\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t} else {\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t},\r\n\r\n\t\t\t}\r\n\r\n\t\t);\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t}\r\n\r\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tgetBoundingBox( target ) {\r\n\r\n\t\ttarget.makeEmpty();\r\n\r\n\t\tconst roots = this._roots;\r\n\t\troots.forEach( buffer => {\r\n\r\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\r\n\t\t\ttarget.union( tempBox );\r\n\r\n\t\t} );\r\n\r\n\t\treturn target;\r\n\r\n\t}\r\n\r\n}\r\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file

From fee34e03fe95f2912cc2760082638ac77be4beb2 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Thu, 20 May 2021 13:01:36 -0700
Subject: [PATCH 135/139] move umd and esm builds to /build

---
 esm/index.js => build/index.module.js | 1592 ++++++++++---------------
 build/index.module.js.map             |    1 +
 umd/index.js => build/index.umd.js    |    2 +-
 build/index.umd.js.map                |    1 +
 esm/index.js.map                      |    1 -
 rollup.config.js                      |   22 +-
 umd/index.js.map                      |    1 -
 7 files changed, 644 insertions(+), 976 deletions(-)
 rename esm/index.js => build/index.module.js (69%)
 create mode 100644 build/index.module.js.map
 rename umd/index.js => build/index.umd.js (99%)
 create mode 100644 build/index.umd.js.map
 delete mode 100644 esm/index.js.map
 delete mode 100644 umd/index.js.map

diff --git a/esm/index.js b/build/index.module.js
similarity index 69%
rename from esm/index.js
rename to build/index.module.js
index 39246cd09..c9d3c96f6 100644
--- a/esm/index.js
+++ b/build/index.module.js
@@ -623,23 +623,8 @@ function buildTree( geo, options ) {
 			node.left = left;
 			left.boundingData = new Float32Array( 6 );
 
-			if ( lazyGeneration ) {
-
-				getBounds( triangleBounds, lstart, lcount, left.boundingData );
-				left.continueGeneration = function () {
-
-					delete this.continueGeneration;
-					getCentroidBounds( triangleBounds, lstart, lcount, cacheCentroidBoundingData );
-					splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
-
-				};
-
-			} else {
-
-				getBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );
-				splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
-
-			}
+			getBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );
+			splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
 
 			// repeat for right
 			const right = new MeshBVHNode();
@@ -648,23 +633,8 @@ function buildTree( geo, options ) {
 			node.right = right;
 			right.boundingData = new Float32Array( 6 );
 
-			if ( lazyGeneration ) {
-
-				getBounds( triangleBounds, rstart, rcount, right.boundingData );
-				right.continueGeneration = function () {
-
-					delete this.continueGeneration;
-					getCentroidBounds( triangleBounds, rstart, rcount, cacheCentroidBoundingData );
-					splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
-
-				};
-
-			} else {
-
-				getBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );
-				splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
-
-			}
+			getBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );
+			splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
 
 		}
 
@@ -682,7 +652,6 @@ function buildTree( geo, options ) {
 	const verbose = options.verbose;
 	const maxLeafTris = options.maxLeafTris;
 	const strategy = options.strategy;
-	const lazyGeneration = options.lazyGeneration;
 	let reachedMaxDepth = false;
 
 	const roots = [];
@@ -723,22 +692,100 @@ function buildTree( geo, options ) {
 
 	}
 
-	// if the geometry doesn't have a bounding box, then let's politely populate it using
-	// the work we did to determine the BVH root bounds
-	if ( geo.boundingBox == null ) {
+	return roots;
+
+}
+
+const BYTES_PER_NODE = 6 * 4 + 4 + 4;
+
+const IS_LEAFNODE_FLAG = 0xFFFF;
+
+function buildPackedTree( geo, options ) {
+
+	// boundingData  				: 6 float32
+	// right / offset 				: 1 uint32
+	// splitAxis / isLeaf + count 	: 1 uint32 / 2 uint16
+	const roots = buildTree( geo, options );
+
+	let float32Array;
+	let uint32Array;
+	let uint16Array;
+	const packedRoots = [];
+	for ( let i = 0; i < roots.length; i ++ ) {
+
+		const root = roots[ i ];
+		let nodeCount = countNodes( root );
+
+		const buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );
+		float32Array = new Float32Array( buffer );
+		uint32Array = new Uint32Array( buffer );
+		uint16Array = new Uint16Array( buffer );
+		populateBuffer( 0, root );
+		packedRoots.push( buffer );
+
+	}
+
+	return packedRoots;
+
+	function countNodes( node ) {
 
-		const rootBox = new Box3();
-		geo.boundingBox = new Box3();
+		if ( node.count ) {
 
-		for ( let root of roots ) {
+			return 1;
+
+		} else {
 
-			geo.boundingBox.union( arrayToBox( root.boundingData, rootBox ) );
+			return 1 + countNodes( node.left ) + countNodes( node.right );
 
 		}
 
 	}
 
-	return roots;
+	function populateBuffer( byteOffset, node ) {
+
+		const stride4Offset = byteOffset / 4;
+		const stride2Offset = byteOffset / 2;
+		const isLeaf = ! ! node.count;
+		const boundingData = node.boundingData;
+		for ( let i = 0; i < 6; i ++ ) {
+
+			float32Array[ stride4Offset + i ] = boundingData[ i ];
+
+		}
+
+		if ( isLeaf ) {
+
+			const offset = node.offset;
+			const count = node.count;
+			uint32Array[ stride4Offset + 6 ] = offset;
+			uint16Array[ stride2Offset + 14 ] = count;
+			uint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;
+			return byteOffset + BYTES_PER_NODE;
+
+		} else {
+
+			const left = node.left;
+			const right = node.right;
+			const splitAxis = node.splitAxis;
+
+			let nextUnusedPointer;
+			nextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );
+
+			if ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {
+
+				throw new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );
+
+			}
+
+			uint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;
+			nextUnusedPointer = populateBuffer( nextUnusedPointer, right );
+
+			uint32Array[ stride4Offset + 7 ] = splitAxis;
+			return nextUnusedPointer;
+
+		}
+
+	}
 
 }
 
@@ -1944,42 +1991,78 @@ function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {
 
 }
 
-const boundingBox = new Box3();
-const boxIntersection = new Vector3();
-const xyzFields$1 = [ 'x', 'y', 'z' ];
-
-function intersectRay( node, ray, target ) {
+function arrayToBox$1( nodeIndex32, array, target ) {
 
-	arrayToBox( node.boundingData, boundingBox );
+	target.min.x = array[ nodeIndex32 ];
+	target.min.y = array[ nodeIndex32 + 1 ];
+	target.min.z = array[ nodeIndex32 + 2 ];
 
-	return ray.intersectBox( boundingBox, target );
+	target.max.x = array[ nodeIndex32 + 3 ];
+	target.max.y = array[ nodeIndex32 + 4 ];
+	target.max.z = array[ nodeIndex32 + 5 ];
 
 }
 
-function raycast( node, mesh, raycaster, ray, intersects ) {
+function iterateOverTriangles(
+	offset,
+	count,
+	geometry,
+	intersectsTriangleFunc,
+	contained,
+	depth,
+	triangle
+) {
 
-	if ( node.continueGeneration ) {
+	const index = geometry.index;
+	const pos = geometry.attributes.position;
+	for ( let i = offset, l = count + offset; i < l; i ++ ) {
 
-		node.continueGeneration();
+		setTriangle( triangle, i * 3, index, pos );
+		triangle.needsUpdate = true;
+
+		if ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {
+
+			return true;
+
+		}
 
 	}
 
-	const isLeaf = ! ! node.count;
+	return false;
+
+}
+
+/* Generated from "castFunctions.template.js". Do not edit. */
+
+const boundingBox = new Box3();
+const boxIntersection = new Vector3();
+const xyzFields$1 = [ 'x', 'y', 'z' ];
+
+function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {
+
+	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+	const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 	if ( isLeaf ) {
 
-		intersectTris( mesh, mesh.geometry, raycaster, ray, node.offset, node.count, intersects );
+		const offset = uint32Array[ nodeIndex32 + 6 ];
+		const count = uint16Array[ nodeIndex16 + 14 ];
+
+		intersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );
 
 	} else {
 
-		if ( intersectRay( node.left, ray, boxIntersection ) ) {
+		const leftIndex = nodeIndex32 + 8;
+		if ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycast( node.left, mesh, raycaster, ray, intersects );
+			raycast( leftIndex, mesh, geometry, raycaster, ray, intersects );
 
 		}
 
-		if ( intersectRay( node.right, ray, boxIntersection ) ) {
+		const rightIndex = uint32Array[ nodeIndex32 + 6 ];
+		if ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {
 
-			raycast( node.right, mesh, raycaster, ray, intersects );
+			raycast( rightIndex, mesh, geometry, raycaster, ray, intersects );
 
 		}
 
@@ -1987,25 +2070,22 @@ function raycast( node, mesh, raycaster, ray, intersects ) {
 
 }
 
-function raycastFirst( node, mesh, raycaster, ray ) {
-
-	if ( node.continueGeneration ) {
+function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {
 
-		node.continueGeneration();
+	let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-	}
-
-	const isLeaf = ! ! node.count;
+	const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 	if ( isLeaf ) {
 
-		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, node.offset, node.count );
+		const offset = uint32Array[ nodeIndex32 + 6 ];
+		const count = uint16Array[ nodeIndex16 + 14 ];
+		return intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );
 
 	} else {
 
-
 		// consider the position of the split plane with respect to the oncoming ray; whichever direction
 		// the ray is coming from, look for an intersection among that side of the tree first
-		const splitAxis = node.splitAxis;
+		const splitAxis = uint32Array[ nodeIndex32 + 7 ];
 		const xyzAxis = xyzFields$1[ splitAxis ];
 		const rayDir = ray.direction[ xyzAxis ];
 		const leftToRight = rayDir >= 0;
@@ -2014,18 +2094,18 @@ function raycastFirst( node, mesh, raycaster, ray ) {
 		let c1, c2;
 		if ( leftToRight ) {
 
-			c1 = node.left;
-			c2 = node.right;
+			c1 = nodeIndex32 + 8;
+			c2 = uint32Array[ nodeIndex32 + 6 ];
 
 		} else {
 
-			c1 = node.right;
-			c2 = node.left;
+			c1 = uint32Array[ nodeIndex32 + 6 ];
+			c2 = nodeIndex32 + 8;
 
 		}
 
-		const c1Intersection = intersectRay( c1, ray, boxIntersection );
-		const c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;
+		const c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );
+		const c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;
 
 		// if we got an intersection in the first node and it's closer than the second node's bounding
 		// box, we don't need to consider the second node because it couldn't possibly be a better result
@@ -2034,8 +2114,8 @@ function raycastFirst( node, mesh, raycaster, ray ) {
 			// check if the point is within the second bounds
 			const point = c1Result.point[ xyzAxis ];
 			const isOutside = leftToRight ?
-				point <= c2.boundingData[ splitAxis ] :
-				point >= c2.boundingData[ splitAxis + 3 ];
+				point <= float32Array[ c2 + splitAxis ] : // min bounding data
+				point >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data
 
 			if ( isOutside ) {
 
@@ -2047,8 +2127,8 @@ function raycastFirst( node, mesh, raycaster, ray ) {
 
 		// either there was no intersection in the first node, or there could still be a closer
 		// intersection in the second, so check the second node and then take the better of the two
-		const c2Intersection = intersectRay( c2, ray, boxIntersection );
-		const c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;
+		const c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );
+		const c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;
 
 		if ( c1Result && c2Result ) {
 
@@ -2070,40 +2150,12 @@ const shapecast = ( function () {
 	const _cachedBox1 = new Box3();
 	const _cachedBox2 = new Box3();
 
-	function iterateOverTriangles(
-		offset,
-		count,
-		geometry,
-		intersectsTriangleFunc,
-		contained,
-		depth,
-		triangle
-	) {
-
-		const index = geometry.index;
-		const pos = geometry.attributes.position;
-		for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
-
-			setTriangle( triangle, i, index, pos );
-			triangle.needsUpdate = true;
-
-			if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
-
-				return true;
-
-			}
-
-		}
-
-		return false;
-
-	}
-
 	return function shapecast(
-		node,
+		nodeIndex32,
 		mesh,
+		geometry,
 		intersectsBoundsFunc,
-		intersectsTriangleFunc = null,
+		intersectsRangeFunc,
 		nodeScoreFunc = null,
 		depth = 0,
 		triangle = _triangle,
@@ -2113,70 +2165,53 @@ const shapecast = ( function () {
 
 		// Define these inside the function so it has access to the local variables needed
 		// when converting to the buffer equivalents
-		function getLeftOffset( node ) {
-
-			if ( node.continueGeneration ) {
-
-				node.continueGeneration();
-
-			}
-
-			while ( ! node.count ) {
+		function getLeftOffset( nodeIndex32 ) {
 
-				node = node.left;
-				if ( /* skip */ node.continueGeneration ) {
+			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-					node.continueGeneration();
+			// traverse until we find a leaf
+			while ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {
 
-				}
+				nodeIndex32 = nodeIndex32 + 8;
+				nodeIndex16 = nodeIndex32 * 2;
 
 			}
 
-			return node.offset;
+			return uint32Array[ nodeIndex32 + 6 ];
 
 		}
 
-		function getRightEndOffset( node ) {
-
-			if ( node.continueGeneration ) {
+		function getRightEndOffset( nodeIndex32 ) {
 
-				node.continueGeneration();
+			let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-			}
-
-			while ( ! node.count ) {
-
-				node = node.right;
-				if ( /* skip */ node.continueGeneration ) {
-
-					node.continueGeneration();
+			// traverse until we find a leaf
+			while ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {
 
-				}
+				// adjust offset to point to the right node
+				nodeIndex32 = uint32Array[ nodeIndex32 + 6 ];
+				nodeIndex16 = nodeIndex32 * 2;
 
 			}
 
-			return node.offset + node.count;
+			// return the end offset of the triangle range
+			return uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];
 
 		}
 
-		if ( node.continueGeneration ) {
-
-			node.continueGeneration();
-
-		}
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
-		const isLeaf = ! ! node.count;
-		if ( isLeaf && intersectsTriangleFunc ) {
+		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
+		if ( isLeaf ) {
 
-			const geometry = mesh.geometry;
-			const offset = node.offset;
-			const count = node.count;
-			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
+			const offset = uint32Array[ nodeIndex32 + 6 ];
+			const count = uint16Array[ nodeIndex16 + 14 ];
+			return intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );
 
 		} else {
 
-			const left = node.left;
-			const right = node.right;
+			const left = nodeIndex32 + 8;
+			const right = uint32Array[ nodeIndex32 + 6 ];
 			let c1 = left;
 			let c2 = right;
 
@@ -2187,8 +2222,9 @@ const shapecast = ( function () {
 				box1 = cachedBox1;
 				box2 = cachedBox2;
 
-				arrayToBox( c1.boundingData, box1 );
-				arrayToBox( c2.boundingData, box2 );
+				// bounding data is not offset
+				arrayToBox$1( c1, float32Array, box1 );
+				arrayToBox$1( c2, float32Array, box2 );
 
 				score1 = nodeScoreFunc( box1 );
 				score2 = nodeScoreFunc( box2 );
@@ -2213,22 +2249,21 @@ const shapecast = ( function () {
 			if ( ! box1 ) {
 
 				box1 = cachedBox1;
-				arrayToBox( c1.boundingData, box1 );
+				arrayToBox$1( c1, float32Array, box1 );
 
 			}
 
-			const isC1Leaf = ! ! c1.count;
-			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
+			const isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );
+			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );
 
 			let c1StopTraversal;
 			if ( c1Intersection === CONTAINED ) {
 
-				const geometry = mesh.geometry;
 				const offset = getLeftOffset( c1 );
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );
 
 			} else {
 
@@ -2237,8 +2272,9 @@ const shapecast = ( function () {
 					shapecast(
 						c1,
 						mesh,
+						geometry,
 						intersectsBoundsFunc,
-						intersectsTriangleFunc,
+						intersectsRangeFunc,
 						nodeScoreFunc,
 						depth + 1,
 						triangle,
@@ -2253,20 +2289,19 @@ const shapecast = ( function () {
 			// Check box 2 intersection
 			// cached box2 will have been overwritten by previous traversal
 			box2 = cachedBox2;
-			arrayToBox( c2.boundingData, box2 );
+			arrayToBox$1( c2, float32Array, box2 );
 
-			const isC2Leaf = ! ! c2.count;
-			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
+			const isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );
+			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );
 
 			let c2StopTraversal;
 			if ( c2Intersection === CONTAINED ) {
 
-				const geometry = mesh.geometry;
 				const offset = getLeftOffset( c2 );
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );
 
 			} else {
 
@@ -2275,8 +2310,9 @@ const shapecast = ( function () {
 					shapecast(
 						c2,
 						mesh,
+						geometry,
 						intersectsBoundsFunc,
-						intersectsTriangleFunc,
+						intersectsRangeFunc,
 						nodeScoreFunc,
 						depth + 1,
 						triangle,
@@ -2306,74 +2342,76 @@ const intersectsGeometry = ( function () {
 	const obb = new OrientedBox();
 	const obb2 = new OrientedBox();
 
-	return function intersectsGeometry( node, mesh, geometry, geometryToBvh, cachedObb = null ) {
-
-		if ( node.continueGeneration ) {
-
-			node.continueGeneration();
+	return function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {
 
-		}
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
 
 		if ( cachedObb === null ) {
 
-			if ( ! geometry.boundingBox ) {
+			if ( ! otherGeometry.boundingBox ) {
 
-				geometry.computeBoundingBox();
+				otherGeometry.computeBoundingBox();
 
 			}
 
-			obb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );
+			obb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );
 			obb.update();
 			cachedObb = obb;
 
 		}
 
-		const isLeaf = ! ! node.count;
+		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
 		if ( isLeaf ) {
 
-			const thisGeometry = mesh.geometry;
+			const thisGeometry = geometry;
 			const thisIndex = thisGeometry.index;
 			const thisPos = thisGeometry.attributes.position;
 
-			const index = geometry.index;
-			const pos = geometry.attributes.position;
+			const index = otherGeometry.index;
+			const pos = otherGeometry.attributes.position;
 
-			const offset = node.offset;
-			const count = node.count;
+			const offset = uint32Array[ nodeIndex32 + 6 ];
+			const count = uint16Array[ nodeIndex16 + 14 ];
 
 			// get the inverse of the geometry matrix so we can transform our triangles into the
 			// geometry space we're trying to test. We assume there are fewer triangles being checked
 			// here.
 			invertedMat.copy( geometryToBvh ).invert();
 
-			if ( geometry.boundsTree ) {
+			if ( otherGeometry.boundsTree ) {
 
-				arrayToBox( node.boundingData, obb2 );
+				arrayToBox$1( nodeIndex32, float32Array, obb2 );
 				obb2.matrix.copy( invertedMat );
 				obb2.update();
 
-				cachedMesh.geometry = geometry;
-				const res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
+				cachedMesh.geometry = otherGeometry;
+				const res = otherGeometry.boundsTree.shapecast( cachedMesh, {
 
-					tri.a.applyMatrix4( geometryToBvh );
-					tri.b.applyMatrix4( geometryToBvh );
-					tri.c.applyMatrix4( geometryToBvh );
-					tri.update();
+					intersectsBounds: box => obb2.intersectsBox( box ),
 
-					for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+					intersectsTriangle: tri => {
 
-						// this triangle needs to be transformed into the current BVH coordinate frame
-						setTriangle( triangle2, i, thisIndex, thisPos );
-						triangle2.update();
-						if ( tri.intersectsTriangle( triangle2 ) ) {
+						tri.a.applyMatrix4( geometryToBvh );
+						tri.b.applyMatrix4( geometryToBvh );
+						tri.c.applyMatrix4( geometryToBvh );
+						tri.update();
 
-							return true;
+						for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+
+							// this triangle needs to be transformed into the current BVH coordinate frame
+							setTriangle( triangle2, i, thisIndex, thisPos );
+							triangle2.update();
+							if ( tri.intersectsTriangle( triangle2 ) ) {
+
+								return true;
+
+							}
 
 						}
 
-					}
+						return false;
 
-					return false;
+					}
 
 				} );
 				cachedMesh.geometry = null;
@@ -2410,21 +2448,20 @@ const intersectsGeometry = ( function () {
 
 		} else {
 
-			const left = node.left;
-			const right = node.right;
+			const left = nodeIndex32 + 8;
+			const right = uint32Array[ nodeIndex32 + 6 ];
 
-			arrayToBox( left.boundingData, boundingBox );
+			arrayToBox$1( left, float32Array, boundingBox );
 			const leftIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
 
 			if ( leftIntersection ) return true;
 
-
-			arrayToBox( right.boundingData, boundingBox );
+			arrayToBox$1( right, float32Array, boundingBox );
 			const rightIntersection =
 				cachedObb.intersectsBox( boundingBox ) &&
-				intersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );
+				intersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
 
 			if ( rightIntersection ) return true;
 
@@ -2436,886 +2473,471 @@ const intersectsGeometry = ( function () {
 
 } )();
 
-const boundingBox$1 = new Box3();
-const boxIntersection$1 = new Vector3();
-const xyzFields$2 = [ 'x', 'y', 'z' ];
+function intersectRay( nodeIndex32, array, ray, target ) {
+
+	arrayToBox$1( nodeIndex32, array, boundingBox );
+	return ray.intersectBox( boundingBox, target );
 
-function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects ) {
+}
 
-	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+const bufferStack = [];
+let _prevBuffer;
+let _float32Array;
+let _uint16Array;
+let _uint32Array;
+function setBuffer( buffer ) {
 
-	const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
-	if ( isLeaf ) {
+	if ( _prevBuffer ) {
 
-		intersectTris( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ], intersects );
+		bufferStack.push( _prevBuffer );
 
-	} else {
+	}
 
-		if ( intersectRayBuffer( /* node left */ stride4Offset + 8, float32Array, ray, boxIntersection$1 ) ) {
+	_prevBuffer = buffer;
+	_float32Array = new Float32Array( buffer );
+	_uint16Array = new Uint16Array( buffer );
+	_uint32Array = new Uint32Array( buffer );
 
-			raycastBuffer( /* node left */ stride4Offset + 8, mesh, raycaster, ray, intersects );
+}
 
-		}
+function clearBuffer() {
 
-		if ( intersectRayBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], float32Array, ray, boxIntersection$1 ) ) {
+	_prevBuffer = null;
+	_float32Array = null;
+	_uint16Array = null;
+	_uint32Array = null;
 
-			raycastBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], mesh, raycaster, ray, intersects );
+	if ( bufferStack.length ) {
 
-		}
+		setBuffer( bufferStack.pop() );
 
 	}
 
 }
 
-function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {
-
-	let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
-	const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
-	if ( isLeaf ) {
+const SKIP_GENERATION = Symbol( 'skip tree generation' );
 
-		return intersectClosestTri( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ] );
+const obb = new OrientedBox();
+const temp = new Vector3();
+const tri2 = new SeparatingAxisTriangle();
+const temp1 = new Vector3();
+const temp2 = new Vector3();
+const tempBox = new Box3();
+const triangle = new SeparatingAxisTriangle();
 
-	} else {
+class MeshBVH {
 
-		// consider the position of the split plane with respect to the oncoming ray; whichever direction
-		// the ray is coming from, look for an intersection among that side of the tree first
-		const splitAxis = /* node splitAxis */ uint32Array[ stride4Offset + 7 ];
-		const xyzAxis = xyzFields$2[ splitAxis ];
-		const rayDir = ray.direction[ xyzAxis ];
-		const leftToRight = rayDir >= 0;
+	static serialize( bvh, geometry, copyIndexBuffer = true ) {
 
-		// c1 is the child to check first
-		let c1, c2;
-		if ( leftToRight ) {
+		const rootData = bvh._roots;
+		const indexAttribute = geometry.getIndex();
+		const result = {
+			roots: rootData,
+			index: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,
+		};
 
-			c1 = /* node left */ stride4Offset + 8;
-			c2 = /* node right */ uint32Array[ stride4Offset + 6 ];
+		return result;
 
-		} else {
+	}
 
-			c1 = /* node right */ uint32Array[ stride4Offset + 6 ];
-			c2 = /* node left */ stride4Offset + 8;
+	static deserialize( data, geometry, setIndex = true ) {
 
-		}
+		const { index, roots } = data;
+		const bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );
+		bvh._roots = roots;
 
-		const c1Intersection = intersectRayBuffer( c1, float32Array, ray, boxIntersection$1 );
-		const c1Result = c1Intersection ? raycastFirstBuffer( c1, mesh, raycaster, ray ) : null;
+		if ( setIndex ) {
 
-		// if we got an intersection in the first node and it's closer than the second node's bounding
-		// box, we don't need to consider the second node because it couldn't possibly be a better result
-		if ( c1Result ) {
+			const indexAttribute = geometry.getIndex();
+			if ( indexAttribute === null ) {
 
-			// check if the point is within the second bounds
-			const point = c1Result.point[ xyzAxis ];
-			const isOutside = leftToRight ?
-				point <= /* c2 boundingData */ float32Array[ c2 + splitAxis ] :
-				point >= /* c2 boundingData */ float32Array[ c2 + splitAxis + 3 ];
+				const newIndex = new BufferAttribute( data.index, 1, false );
+				geometry.setIndex( newIndex );
 
-			if ( isOutside ) {
+			} else if ( indexAttribute.array !== index ) {
 
-				return c1Result;
+				indexAttribute.array.set( index );
+				indexAttribute.needsUpdate = true;
 
 			}
 
 		}
 
-		// either there was no intersection in the first node, or there could still be a closer
-		// intersection in the second, so check the second node and then take the better of the two
-		const c2Intersection = intersectRayBuffer( c2, float32Array, ray, boxIntersection$1 );
-		const c2Result = c2Intersection ? raycastFirstBuffer( c2, mesh, raycaster, ray ) : null;
+		return bvh;
 
-		if ( c1Result && c2Result ) {
+	}
 
-			return c1Result.distance <= c2Result.distance ? c1Result : c2Result;
+	constructor( geometry, options = {} ) {
 
-		} else {
+		if ( ! geometry.isBufferGeometry ) {
 
-			return c1Result || c2Result || null;
+			throw new Error( 'MeshBVH: Only BufferGeometries are supported.' );
 
-		}
+		} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {
 
-	}
+			throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );
 
-}
+		} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {
 
-const shapecastBuffer = ( function () {
+			throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );
 
-	const _triangle = new SeparatingAxisTriangle();
-	const _cachedBox1 = new Box3();
-	const _cachedBox2 = new Box3();
+		}
 
-	function iterateOverTriangles(
-		offset,
-		count,
-		geometry,
-		intersectsTriangleFunc,
-		contained,
-		depth,
-		triangle
-	) {
+		// default options
+		options = Object.assign( {
 
-		const index = geometry.index;
-		const pos = geometry.attributes.position;
-		for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+			strategy: CENTER,
+			maxDepth: 40,
+			maxLeafTris: 10,
+			verbose: true,
 
-			setTriangle( triangle, i, index, pos );
-			triangle.needsUpdate = true;
+			setBoundingBox: true,
 
-			if ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {
+			// undocumented options
 
-				return true;
+			// Whether to skip generating the tree. Used for deserialization.
+			[ SKIP_GENERATION ]: false
 
-			}
+		}, options );
+		options.strategy = Math.max( 0, Math.min( 2, options.strategy ) );
 
-		}
+		this._roots = null;
+		if ( ! options[ SKIP_GENERATION ] ) {
 
-		return false;
-
-	}
-
-	return function shapecastBuffer( stride4Offset,
-		mesh,
-		intersectsBoundsFunc,
-		intersectsTriangleFunc = null,
-		nodeScoreFunc = null,
-		depth = 0,
-		triangle = _triangle,
-		cachedBox1 = _cachedBox1,
-		cachedBox2 = _cachedBox2
-	) {
-
-		// Define these inside the function so it has access to the local variables needed
-		// when converting to the buffer equivalents
-		function getLeftOffsetBuffer( stride4Offset ) {
-
-			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+			this._roots = buildPackedTree( geometry, options );
 
-			while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
+			if ( ! geometry.boundingBox && options.setBoundingBox ) {
 
-				/* node */ stride4Offset = /* node left */ stride4Offset + 8, stride2Offset = stride4Offset * 2;
+				geometry.boundingBox = this.getBoundingBox( new Box3() );
 
 			}
 
-			return /* node offset */ uint32Array[ stride4Offset + 6 ];
-
 		}
 
-		function getRightEndOffsetBuffer( stride4Offset ) {
-
-			let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+		// retain references to the geometry so we can use them it without having to
+		// take a geometry reference in every function.
+		this.geometry = geometry;
 
-			while ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {
+	}
 
-				/* node */ stride4Offset = /* node right */ uint32Array[ stride4Offset + 6 ], stride2Offset = stride4Offset * 2;
+	refit( nodeIndices = null, terminationIndices = null ) {
 
-			}
+		if ( nodeIndices && Array.isArray( nodeIndices ) ) {
 
-			return /* node offset */ uint32Array[ stride4Offset + 6 ] + /* node count */ uint16Array[ stride2Offset + 14 ];
+			nodeIndices = new Set( nodeIndices );
 
 		}
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
-		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
-		if ( isLeaf && intersectsTriangleFunc ) {
-
-			const geometry = mesh.geometry;
-			const offset = /* node offset */ uint32Array[ stride4Offset + 6 ];
-			const count = /* node count */ uint16Array[ stride2Offset + 14 ];
-			return iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );
-
-		} else {
-
-			const left = /* node left */ stride4Offset + 8;
-			const right = /* node right */ uint32Array[ stride4Offset + 6 ];
-			let c1 = left;
-			let c2 = right;
-
-			let score1, score2;
-			let box1, box2;
-			if ( nodeScoreFunc ) {
-
-				box1 = cachedBox1;
-				box2 = cachedBox2;
-
-				arrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );
-				arrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );
-
-				score1 = nodeScoreFunc( box1 );
-				score2 = nodeScoreFunc( box2 );
-
-				if ( score2 < score1 ) {
-
-					c1 = right;
-					c2 = left;
-
-					const temp = score1;
-					score1 = score2;
-					score2 = temp;
-
-					box1 = box2;
-					// box2 is always set before use below
-
-				}
-
-			}
-
-			// Check box 1 intersection
-			if ( ! box1 ) {
-
-				box1 = cachedBox1;
-				arrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );
-
-			}
-
-			const isC1Leaf = ! /* c1 count */ ( uint16Array[ c1 + 15 ] !== 0xffff );
-			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );
-
-			let c1StopTraversal;
-			if ( c1Intersection === CONTAINED ) {
-
-				const geometry = mesh.geometry;
-				const offset = getLeftOffsetBuffer( c1 );
-				const end = getRightEndOffsetBuffer( c1 );
-				const count = end - offset;
-
-				c1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
+		if ( terminationIndices && Array.isArray( terminationIndices ) ) {
 
-			} else {
-
-				c1StopTraversal =
-					c1Intersection &&
-					shapecastBuffer(
-						c1,
-						mesh,
-						intersectsBoundsFunc,
-						intersectsTriangleFunc,
-						nodeScoreFunc,
-						depth + 1,
-						triangle,
-						cachedBox1,
-						cachedBox2
-					);
-
-			}
-
-			if ( c1StopTraversal ) return true;
-
-			// Check box 2 intersection
-			// cached box2 will have been overwritten by previous traversal
-			box2 = cachedBox2;
-			arrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );
-
-			const isC2Leaf = ! /* c2 count */ ( uint16Array[ c2 + 15 ] !== 0xffff );
-			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );
-
-			let c2StopTraversal;
-			if ( c2Intersection === CONTAINED ) {
-
-				const geometry = mesh.geometry;
-				const offset = getLeftOffsetBuffer( c2 );
-				const end = getRightEndOffsetBuffer( c2 );
-				const count = end - offset;
-
-				c2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );
-
-			} else {
-
-				c2StopTraversal =
-					c2Intersection &&
-					shapecastBuffer(
-						c2,
-						mesh,
-						intersectsBoundsFunc,
-						intersectsTriangleFunc,
-						nodeScoreFunc,
-						depth + 1,
-						triangle,
-						cachedBox1,
-						cachedBox2
-					);
-
-			}
-
-			if ( c2StopTraversal ) return true;
-
-			return false;
+			terminationIndices = new Set( terminationIndices );
 
 		}
 
-	};
-
-} )();
-
-const intersectsGeometryBuffer = ( function () {
-
-	const triangle = new SeparatingAxisTriangle();
-	const triangle2 = new SeparatingAxisTriangle();
-	const cachedMesh = new Mesh();
-	const invertedMat = new Matrix4();
-
-	const obb = new OrientedBox();
-	const obb2 = new OrientedBox();
-
-	return function intersectsGeometryBuffer( stride4Offset, mesh, geometry, geometryToBvh, cachedObb = null ) {
+		const geometry = this.geometry;
+		const indexArr = geometry.index.array;
+		const posArr = geometry.attributes.position.array;
+		let buffer, uint32Array, uint16Array, float32Array;
+		const roots = this._roots;
+		for ( let i = 0, l = roots.length; i < l; i ++ ) {
 
-		let stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
-
-		if ( cachedObb === null ) {
-
-			if ( ! geometry.boundingBox ) {
-
-				geometry.computeBoundingBox();
-
-			}
-
-			obb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );
-			obb.update();
-			cachedObb = obb;
+			buffer = roots[ i ];
+			uint32Array = new Uint32Array( buffer );
+			uint16Array = new Uint16Array( buffer );
+			float32Array = new Float32Array( buffer );
+			_traverse( 0 );
 
 		}
 
-		const isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );
-		if ( isLeaf ) {
+		function _traverse( node32Index, force = false ) {
 
-			const thisGeometry = mesh.geometry;
-			const thisIndex = thisGeometry.index;
-			const thisPos = thisGeometry.attributes.position;
+			const node16Index = node32Index * 2;
+			const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
+			if ( isLeaf ) {
 
-			const index = geometry.index;
-			const pos = geometry.attributes.position;
+				const offset = uint32Array[ node32Index + 6 ];
+				const count = uint16Array[ node16Index + 14 ];
 
-			const offset = /* node offset */ uint32Array[ stride4Offset + 6 ];
-			const count = /* node count */ uint16Array[ stride2Offset + 14 ];
+				let minx = Infinity;
+				let miny = Infinity;
+				let minz = Infinity;
+				let maxx = - Infinity;
+				let maxy = - Infinity;
+				let maxz = - Infinity;
+				for ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {
 
-			// get the inverse of the geometry matrix so we can transform our triangles into the
-			// geometry space we're trying to test. We assume there are fewer triangles being checked
-			// here.
-			invertedMat.copy( geometryToBvh ).invert();
+					const index3 = indexArr[ i ] * 3;
+					const x = posArr[ index3 + 0 ];
+					const y = posArr[ index3 + 1 ];
+					const z = posArr[ index3 + 2 ];
 
-			if ( geometry.boundsTree ) {
+					if ( x < minx ) minx = x;
+					if ( x > maxx ) maxx = x;
 
-				arrayToBoxBuffer( /* node boundingData */ stride4Offset, float32Array, obb2 );
-				obb2.matrix.copy( invertedMat );
-				obb2.update();
+					if ( y < miny ) miny = y;
+					if ( y > maxy ) maxy = y;
 
-				cachedMesh.geometry = geometry;
-				const res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {
+					if ( z < minz ) minz = z;
+					if ( z > maxz ) maxz = z;
 
-					tri.a.applyMatrix4( geometryToBvh );
-					tri.b.applyMatrix4( geometryToBvh );
-					tri.c.applyMatrix4( geometryToBvh );
-					tri.update();
+				}
 
-					for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+				if (
+					float32Array[ node32Index + 0 ] !== minx ||
+					float32Array[ node32Index + 1 ] !== miny ||
+					float32Array[ node32Index + 2 ] !== minz ||
 
-						// this triangle needs to be transformed into the current BVH coordinate frame
-						setTriangle( triangle2, i, thisIndex, thisPos );
-						triangle2.update();
-						if ( tri.intersectsTriangle( triangle2 ) ) {
+					float32Array[ node32Index + 3 ] !== maxx ||
+					float32Array[ node32Index + 4 ] !== maxy ||
+					float32Array[ node32Index + 5 ] !== maxz
+				) {
 
-							return true;
+					float32Array[ node32Index + 0 ] = minx;
+					float32Array[ node32Index + 1 ] = miny;
+					float32Array[ node32Index + 2 ] = minz;
 
-						}
+					float32Array[ node32Index + 3 ] = maxx;
+					float32Array[ node32Index + 4 ] = maxy;
+					float32Array[ node32Index + 5 ] = maxz;
 
-					}
+					return true;
 
-					return false;
+				} else {
 
-				} );
-				cachedMesh.geometry = null;
+					return false;
 
-				return res;
+				}
 
 			} else {
 
-				for ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {
-
-					// this triangle needs to be transformed into the current BVH coordinate frame
-					setTriangle( triangle, i, thisIndex, thisPos );
-					triangle.a.applyMatrix4( invertedMat );
-					triangle.b.applyMatrix4( invertedMat );
-					triangle.c.applyMatrix4( invertedMat );
-					triangle.update();
-
-					for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
+				const left = node32Index + 8;
+				const right = uint32Array[ node32Index + 6 ];
 
-						setTriangle( triangle2, i2, index, pos );
-						triangle2.update();
+				let leftChange = false;
+				let forceLeft = force || terminationIndices && terminationIndices.has( left );
+				let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );
+				if ( traverseLeft ) {
 
-						if ( triangle.intersectsTriangle( triangle2 ) ) {
-
-							return true;
-
-						}
-
-					}
+					leftChange = _traverse( left, forceLeft );
 
 				}
 
-			}
-
-		} else {
-
-			const left = /* node left */ stride4Offset + 8;
-			const right = /* node right */ uint32Array[ stride4Offset + 6 ];
-
-			arrayToBoxBuffer( /* left boundingData */ left, float32Array, boundingBox$1 );
-			const leftIntersection =
-				cachedObb.intersectsBox( boundingBox$1 ) &&
-				intersectsGeometryBuffer( left, mesh, geometry, geometryToBvh, cachedObb );
-
-			if ( leftIntersection ) return true;
-
-			arrayToBoxBuffer( /* right boundingData */ right, float32Array, boundingBox$1 );
-			const rightIntersection =
-				cachedObb.intersectsBox( boundingBox$1 ) &&
-				intersectsGeometryBuffer( right, mesh, geometry, geometryToBvh, cachedObb );
-
-			if ( rightIntersection ) return true;
-
-			return false;
-
-		}
-
-	};
-
-} )();
-
-function intersectRayBuffer( stride4Offset, array, ray, target ) {
-
-	arrayToBoxBuffer( stride4Offset, array, boundingBox$1 );
-	return ray.intersectBox( boundingBox$1, target );
-
-}
-
-const bufferStack = [];
-let _prevBuffer;
-let _float32Array;
-let _uint16Array;
-let _uint32Array;
-function setBuffer( buffer ) {
-
-	if ( _prevBuffer ) {
+				let rightChange = false;
+				let forceRight = force || terminationIndices && terminationIndices.has( right );
+				let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );
+				if ( traverseRight ) {
 
-		bufferStack.push( _prevBuffer );
-
-	}
-
-	_prevBuffer = buffer;
-	_float32Array = new Float32Array( buffer );
-	_uint16Array = new Uint16Array( buffer );
-	_uint32Array = new Uint32Array( buffer );
-
-}
-
-function clearBuffer() {
-
-	_prevBuffer = null;
-	_float32Array = null;
-	_uint16Array = null;
-	_uint32Array = null;
-
-	if ( bufferStack.length ) {
-
-		setBuffer( bufferStack.pop() );
-
-	}
-
-}
-
-function arrayToBoxBuffer( stride4Offset, array, target ) {
-
-	target.min.x = array[ stride4Offset ];
-	target.min.y = array[ stride4Offset + 1 ];
-	target.min.z = array[ stride4Offset + 2 ];
-
-	target.max.x = array[ stride4Offset + 3 ];
-	target.max.y = array[ stride4Offset + 4 ];
-	target.max.z = array[ stride4Offset + 5 ];
-
-}
+					rightChange = _traverse( right, forceRight );
 
-// boundingData  				: 6 float32
-// right / offset 				: 1 uint32
-// splitAxis / isLeaf + count 	: 1 uint32 / 2 uint16
-const BYTES_PER_NODE = 6 * 4 + 4 + 4;
-const IS_LEAFNODE_FLAG = 0xFFFF;
-const SKIP_GENERATION = Symbol( 'skip tree generation' );
-
-const obb = new OrientedBox();
-const temp = new Vector3();
-const tri2 = new SeparatingAxisTriangle();
-const temp1 = new Vector3();
-const temp2 = new Vector3();
-
-class MeshBVH {
-
-	static serialize( bvh, geometry, copyIndexBuffer = true ) {
-
-		function finishTree( node ) {
-
-			if ( node.continueGeneration ) {
-
-				node.continueGeneration();
-
-			}
-
-			if ( ! node.count ) {
+				}
 
-				finishTree( node.left );
-				finishTree( node.right );
+				const didChange = leftChange || rightChange;
 
-			}
+				if ( didChange ) {
 
-		}
+					for ( let i = 0; i < 3; i ++ ) {
 
-		function countNodes( node ) {
+						const lefti = left + i;
+						const righti = right + i;
+						const minLeftValue = float32Array[ lefti ];
+						const maxLeftValue = float32Array[ lefti + 3 ];
+						const minRightValue = float32Array[ righti ];
+						const maxRightValue = float32Array[ righti + 3 ];
 
-			if ( node.count ) {
+						float32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;
+						float32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;
 
-				return 1;
+					}
 
-			} else {
+				}
 
-				return 1 + countNodes( node.left ) + countNodes( node.right );
+				return didChange;
 
 			}
 
 		}
 
-		function populateBuffer( byteOffset, node ) {
+	}
 
-			const stride4Offset = byteOffset / 4;
-			const stride2Offset = byteOffset / 2;
-			const isLeaf = ! ! node.count;
-			const boundingData = node.boundingData;
-			for ( let i = 0; i < 6; i ++ ) {
+	traverse( callback, rootIndex = 0 ) {
 
-				float32Array[ stride4Offset + i ] = boundingData[ i ];
+		const buffer = this._roots[ rootIndex ];
+		const uint32Array = new Uint32Array( buffer );
+		const uint16Array = new Uint16Array( buffer );
+		_traverse( 0 );
 
-			}
+		function _traverse( node32Index, depth = 0 ) {
 
+			const node16Index = node32Index * 2;
+			const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
 			if ( isLeaf ) {
 
-				const offset = node.offset;
-				const count = node.count;
-				uint32Array[ stride4Offset + 6 ] = offset;
-				uint16Array[ stride2Offset + 14 ] = count;
-				uint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;
-				return byteOffset + BYTES_PER_NODE;
+				const offset = uint32Array[ node32Index + 6 ];
+				const count = uint16Array[ node16Index + 14 ];
+				callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );
 
 			} else {
 
-				const left = node.left;
-				const right = node.right;
-				const splitAxis = node.splitAxis;
+				const left = node32Index + BYTES_PER_NODE / 4;
+				const right = uint32Array[ node32Index + 6 ];
+				const splitAxis = uint32Array[ node32Index + 7 ];
+				const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );
 
-				let nextUnusedPointer;
-				nextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );
+				if ( ! stopTraversal ) {
 
-				uint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;
-				nextUnusedPointer = populateBuffer( nextUnusedPointer, right );
-
-				uint32Array[ stride4Offset + 7 ] = splitAxis;
-				return nextUnusedPointer;
-
-			}
+					_traverse( left, depth + 1 );
+					_traverse( right, depth + 1 );
 
-		}
-
-		let float32Array;
-		let uint32Array;
-		let uint16Array;
-
-		const roots = bvh._roots;
-		let rootData;
-
-		if ( bvh._isPacked ) {
-
-			rootData = roots;
-
-		} else {
-
-			rootData = [];
-			for ( let i = 0; i < roots.length; i ++ ) {
-
-				const root = roots[ i ];
-				finishTree( root );
-				let nodeCount = countNodes( root );
-
-				const buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );
-				float32Array = new Float32Array( buffer );
-				uint32Array = new Uint32Array( buffer );
-				uint16Array = new Uint16Array( buffer );
-				populateBuffer( 0, root );
-				rootData.push( buffer );
+				}
 
 			}
 
 		}
 
-		const indexAttribute = geometry.getIndex();
-		const result = {
-			roots: rootData,
-			index: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,
-		};
-
-		return result;
-
 	}
 
-	static deserialize( data, geometry, setIndex = true ) {
-
-		const { index, roots } = data;
-		const bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );
-		bvh._roots = roots;
-		bvh._isPacked = true;
-
-		if ( setIndex ) {
-
-			const indexAttribute = geometry.getIndex();
-			if ( indexAttribute === null ) {
-
-				const newIndex = new BufferAttribute( data.index, 1, false );
-				geometry.setIndex( newIndex );
-
-			} else if ( indexAttribute.array !== index ) {
+	/* Core Cast Functions */
+	raycast( mesh, raycaster, ray, intersects ) {
 
-				indexAttribute.array.set( index );
-				indexAttribute.needsUpdate = true;
+		const geometry = this.geometry;
+		for ( const root of this._roots ) {
 
-			}
+			setBuffer( root );
+			raycast( 0, mesh, geometry, raycaster, ray, intersects );
+			clearBuffer();
 
 		}
 
-		return bvh;
-
 	}
 
-	constructor( geo, options = {} ) {
-
-		if ( ! geo.isBufferGeometry ) {
-
-			throw new Error( 'MeshBVH: Only BufferGeometries are supported.' );
-
-		} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {
-
-			throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );
-
-		} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {
-
-			throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );
-
-		}
-
-		// default options
-		options = Object.assign( {
-
-			strategy: CENTER,
-			maxDepth: 40,
-			maxLeafTris: 10,
-			verbose: true,
-			lazyGeneration: true,
-
-			// undocumented options
-
-			// whether to the pack the data as a buffer or not. The data
-			// will not be packed if lazyGeneration is true.
-			packData: true,
-
-			// Whether to skip generating the tree. Used for deserialization.
-			[ SKIP_GENERATION ]: false
+	raycastFirst( mesh, raycaster, ray ) {
 
-		}, options );
-		options.strategy = Math.max( 0, Math.min( 2, options.strategy ) );
+		const geometry = this.geometry;
+		let closestResult = null;
+		for ( const root of this._roots ) {
 
-		this._isPacked = false;
-		this._roots = null;
-		if ( ! options[ SKIP_GENERATION ] ) {
+			setBuffer( root );
+			const result = raycastFirst( 0, mesh, geometry, raycaster, ray );
+			clearBuffer();
 
-			this._roots = buildTree( geo, options );
-			if ( ! options.lazyGeneration && options.packData ) {
+			if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
 
-				this._roots = MeshBVH.serialize( this, geo, false ).roots;
-				this._isPacked = true;
+				closestResult = result;
 
 			}
 
 		}
 
-	}
-
-	traverse( callback, rootIndex = 0 ) {
-
-		if ( this._isPacked ) {
 
-			const buffer = this._roots[ rootIndex ];
-			const uint32Array = new Uint32Array( buffer );
-			const uint16Array = new Uint16Array( buffer );
-			_traverseBuffer( 0 );
-
-			function _traverseBuffer( stride4Offset, depth = 0 ) {
-
-				const stride2Offset = stride4Offset * 2;
-				const isLeaf = uint16Array[ stride2Offset + 15 ];
-				if ( isLeaf ) {
-
-					const offset = uint32Array[ stride4Offset + 6 ];
-					const count = uint16Array[ stride2Offset + 14 ];
-					callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), offset, count );
+		return closestResult;
 
-				} else {
+	}
 
-					const left = stride4Offset + BYTES_PER_NODE / 4;
-					const right = uint32Array[ stride4Offset + 6 ];
-					const splitAxis = uint32Array[ stride4Offset + 7 ];
-					const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), splitAxis, false );
+	intersectsGeometry( mesh, otherGeometry, geomToMesh ) {
 
-					if ( ! stopTraversal ) {
+		const geometry = this.geometry;
+		let result = false;
+		for ( const root of this._roots ) {
 
-						_traverseBuffer( left, depth + 1 );
-						_traverseBuffer( right, depth + 1 );
+			setBuffer( root );
+			result = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );
+			clearBuffer();
 
-					}
+			if ( result ) {
 
-				}
+				break;
 
 			}
 
-		} else {
-
-			_traverseNode( this._roots[ rootIndex ] );
+		}
 
-			function _traverseNode( node, depth = 0 ) {
+		return result;
 
-				const isLeaf = ! ! node.count;
-				if ( isLeaf ) {
+	}
 
-					callback( depth, isLeaf, node.boundingData, node.offset, node.count );
+	shapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {
 
-				} else {
+		const geometry = this.geometry;
+		if ( callbacks instanceof Function ) {
 
-					const stopTraversal = callback( depth, isLeaf, node.boundingData, node.splitAxis, ! ! node.continueGeneration );
+			if ( _intersectsTriangleFunc ) {
 
-					if ( ! stopTraversal ) {
+				// Support the previous function signature that provided three sequential index buffer
+				// indices here.
+				const originalTriangleFunc = _intersectsTriangleFunc;
+				_intersectsTriangleFunc = ( tri, index, contained, depth ) => {
 
-						if ( node.left ) _traverseNode( node.left, depth + 1 );
-						if ( node.right ) _traverseNode( node.right, depth + 1 );
+					const i3 = index * 3;
+					return originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );
 
-					}
+				};
 
-				}
 
 			}
 
-		}
-
-	}
+			callbacks = {
 
-	/* Core Cast Functions */
-	raycast( mesh, raycaster, ray, intersects ) {
+				boundsTraverseOrder: _orderNodesFunc,
+				intersectsBounds: callbacks,
+				intersectsTriangle: _intersectsTriangleFunc,
+				intersectsRange: null,
 
-		const isPacked = this._isPacked;
-		for ( const root of this._roots ) {
-
-			if ( isPacked ) {
-
-				setBuffer( root );
-				raycastBuffer( 0, mesh, raycaster, ray, intersects );
-
-			} else {
-
-				raycast( root, mesh, raycaster, ray, intersects );
+			};
 
-			}
+			console.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );
 
 		}
 
-		isPacked && clearBuffer();
+		let {
+			boundsTraverseOrder,
+			intersectsBounds,
+			intersectsRange,
+			intersectsTriangle,
+		} = callbacks;
 
-	}
+		if ( intersectsRange && intersectsTriangle ) {
 
-	raycastFirst( mesh, raycaster, ray ) {
-
-		const isPacked = this._isPacked;
-		let closestResult = null;
-		for ( const root of this._roots ) {
+			const originalIntersectsRange = intersectsRange;
+			intersectsRange = ( offset, count, contained, depth, nodeIndex ) => {
 
-			let result;
-			if ( isPacked ) {
-
-				setBuffer( root );
-				result = raycastFirstBuffer( 0, mesh, raycaster, ray );
-
-			} else {
+				if ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {
 
-				result = raycastFirst( root, mesh, raycaster, ray );
+					return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
 
-			}
-
-			if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
-
-				closestResult = result;
-
-			}
-
-		}
+				}
 
-		isPacked && clearBuffer();
+				return true;
 
-		return closestResult;
+			};
 
-	}
+		} else if ( ! intersectsRange ) {
 
-	intersectsGeometry( mesh, geometry, geomToMesh ) {
+			if ( intersectsTriangle ) {
 
-		const isPacked = this._isPacked;
-		let result = false;
-		for ( const root of this._roots ) {
+				intersectsRange = ( offset, count, contained, depth ) => {
 
-			if ( isPacked ) {
+					return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
 
-				setBuffer( root );
-				result = intersectsGeometryBuffer( 0, mesh, geometry, geomToMesh );
+				};
 
 			} else {
 
-				result = intersectsGeometry( root, mesh, geometry, geomToMesh );
-
-			}
+				intersectsRange = ( offset, count, contained ) => {
 
-			if ( result ) {
+					return contained;
 
-				break;
+				};
 
 			}
 
 		}
 
-		isPacked && clearBuffer();
-
-		return result;
-
-	}
-
-	shapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {
-
-		const isPacked = this._isPacked;
 		let result = false;
 		for ( const root of this._roots ) {
 
-			if ( isPacked ) {
-
-				setBuffer( root );
-				result = shapecastBuffer( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
-
-			} else {
-
-				result = shapecast( root, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );
-
-			}
+			setBuffer( root );
+			result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );
+			clearBuffer();
 
 			if ( result ) {
 
@@ -3325,8 +2947,6 @@ class MeshBVH {
 
 		}
 
-		isPacked && clearBuffer();
-
 		return result;
 
 	}
@@ -3339,8 +2959,10 @@ class MeshBVH {
 
 		return this.shapecast(
 			mesh,
-			box => obb.intersectsBox( box ),
-			tri => obb.intersectsTriangle( tri )
+			{
+				intersectsBounds: box => obb.intersectsBox( box ),
+				intersectsTriangle: tri => obb.intersectsTriangle( tri )
+			}
 		);
 
 	}
@@ -3349,25 +2971,27 @@ class MeshBVH {
 
 		return this.shapecast(
 			mesh,
-			box => sphere.intersectsBox( box ),
-			tri => tri.intersectsSphere( sphere )
+			{
+				intersectsBounds: box => sphere.intersectsBox( box ),
+				intersectsTriangle: tri => tri.intersectsSphere( sphere )
+			}
 		);
 
 	}
 
-	closestPointToGeometry( mesh, geom, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {
+	closestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {
 
-		if ( ! geom.boundingBox ) {
+		if ( ! otherGeometry.boundingBox ) {
 
-			geom.computeBoundingBox();
+			otherGeometry.computeBoundingBox();
 
 		}
 
-		obb.set( geom.boundingBox.min, geom.boundingBox.max, geometryToBvh );
+		obb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );
 		obb.update();
 
-		const pos = geom.attributes.position;
-		const index = geom.index;
+		const pos = otherGeometry.attributes.position;
+		const index = otherGeometry.index;
 
 		let tempTarget1 = null;
 		let tempTarget2 = null;
@@ -3386,66 +3010,80 @@ class MeshBVH {
 		let closestDistance = Infinity;
 		this.shapecast(
 			mesh,
-			( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,
-			tri => {
+			{
 
-				if ( tri.needsUpdate ) {
+				boundsTraverseOrder: box => {
 
-					tri.update();
+					return obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );
 
-				}
+				},
 
-				const sphere1 = tri.sphere;
-				for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
+				intersectsBounds: ( box, isLeaf, score ) => {
 
-					setTriangle( tri2, i2, index, pos );
-					tri2.a.applyMatrix4( geometryToBvh );
-					tri2.b.applyMatrix4( geometryToBvh );
-					tri2.c.applyMatrix4( geometryToBvh );
-					tri2.sphere.setFromPoints( tri2.points );
+					return score < closestDistance && score < maxThreshold;
 
-					const sphere2 = tri2.sphere;
-					const sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;
-					if ( sphereDist > closestDistance ) {
+				},
 
-						continue;
+				intersectsTriangle: tri => {
+
+					if ( tri.needsUpdate ) {
+
+						tri.update();
 
 					}
 
-					tri2.update();
+					const sphere1 = tri.sphere;
+					for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
 
-					const dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );
-					if ( dist < closestDistance ) {
+						setTriangle( tri2, i2, index, pos );
+						tri2.a.applyMatrix4( geometryToBvh );
+						tri2.b.applyMatrix4( geometryToBvh );
+						tri2.c.applyMatrix4( geometryToBvh );
+						tri2.sphere.setFromPoints( tri2.points );
 
-						if ( target1 ) {
+						const sphere2 = tri2.sphere;
+						const sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;
+						if ( sphereDist > closestDistance ) {
 
-							target1.copy( tempTarget1 );
+							continue;
 
 						}
 
-						if ( target2 ) {
+						tri2.update();
 
-							target2.copy( tempTarget2 );
+						const dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );
+						if ( dist < closestDistance ) {
 
-						}
+							if ( target1 ) {
 
-						closestDistance = dist;
+								target1.copy( tempTarget1 );
 
-					}
+							}
 
-					// stop traversal if we find a point that's under the given threshold
-					if ( dist < minThreshold ) {
+							if ( target2 ) {
 
-						return true;
+								target2.copy( tempTarget2 );
+
+							}
+
+							closestDistance = dist;
+
+						}
+
+						// stop traversal if we find a point that's under the given threshold
+						if ( dist < minThreshold ) {
+
+							return true;
+
+						}
 
 					}
 
-				}
+					return false;
 
-				return false;
+				}
 
-			},
-			box => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )
+			}
 
 		);
 
@@ -3465,43 +3103,60 @@ class MeshBVH {
 		// skip checking if over maxThreshold
 		// set minThreshold = maxThreshold to quickly check if a point is within a threshold
 		// returns Infinity if no value found
-		let closestDistance = Infinity;
+		const minThresholdSq = minThreshold * minThreshold;
+		const maxThresholdSq = maxThreshold * maxThreshold;
+		let closestDistanceSq = Infinity;
 		this.shapecast(
 
 			mesh,
-			( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,
-			tri => {
+			{
 
-				tri.closestPointToPoint( point, temp );
-				const dist = point.distanceTo( temp );
-				if ( dist < closestDistance ) {
+				boundsTraverseOrder: box => {
 
-					if ( target ) {
+					temp.copy( point ).clamp( box.min, box.max );
+					return temp.distanceToSquared( point );
 
-						target.copy( temp );
+				},
 
-					}
+				intersectsBounds: ( box, isLeaf, score ) => {
 
-					closestDistance = dist;
+					return score < closestDistanceSq && score < maxThresholdSq;
 
-				}
+				},
 
-				if ( dist < minThreshold ) {
+				intersectsTriangle: tri => {
 
-					return true;
+					tri.closestPointToPoint( point, temp );
+					const distSq = point.distanceToSquared( temp );
+					if ( distSq < closestDistanceSq ) {
 
-				} else {
+						if ( target ) {
 
-					return false;
+							target.copy( temp );
 
-				}
+						}
+
+						closestDistanceSq = distSq;
+
+					}
+
+					if ( distSq < minThresholdSq ) {
+
+						return true;
+
+					} else {
+
+						return false;
+
+					}
+
+				},
 
-			},
-			box => box.distanceToPoint( point )
+			}
 
 		);
 
-		return closestDistance;
+		return Math.sqrt( closestDistanceSq );
 
 	}
 
@@ -3511,11 +3166,27 @@ class MeshBVH {
 
 	}
 
+	getBoundingBox( target ) {
+
+		target.makeEmpty();
+
+		const roots = this._roots;
+		roots.forEach( buffer => {
+
+			arrayToBox$1( 0, new Float32Array( buffer ), tempBox );
+			target.union( tempBox );
+
+		} );
+
+		return target;
+
+	}
+
 }
 
 const wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );
 const boxGeom = new Box3Helper().geometry;
-let boundingBox$2 = new Box3();
+let boundingBox$1 = new Box3();
 
 class MeshBVHRootVisualizer extends Group {
 
@@ -3524,9 +3195,7 @@ class MeshBVHRootVisualizer extends Group {
 		super( 'MeshBVHRootVisualizer' );
 
 		this.depth = depth;
-		this._oldDepth = - 1;
 		this.mesh = mesh;
-		this._boundsTree = null;
 		this._group = group;
 
 		this.update();
@@ -3535,13 +3204,11 @@ class MeshBVHRootVisualizer extends Group {
 
 	update() {
 
-		this._oldDepth = this.depth;
-		this._boundsTree = this.mesh.geometry.boundsTree;
-
+		const boundsTree = this.mesh.geometry.boundsTree;
 		let requiredChildren = 0;
-		if ( this._boundsTree ) {
+		if ( boundsTree ) {
 
-			this._boundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
+			boundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
 
 				let isTerminal = isLeaf || countOrIsUnfinished;
 
@@ -3564,9 +3231,9 @@ class MeshBVHRootVisualizer extends Group {
 					}
 
 					requiredChildren ++;
-					arrayToBox( boundingData, boundingBox$2 );
-					boundingBox$2.getCenter( m.position );
-					m.scale.subVectors( boundingBox$2.max, boundingBox$2.min ).multiplyScalar( 0.5 );
+					arrayToBox( boundingData, boundingBox$1 );
+					boundingBox$1.getCenter( m.position );
+					m.scale.subVectors( boundingBox$1.max, boundingBox$1.min ).multiplyScalar( 0.5 );
 
 					if ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;
 					if ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;
@@ -3620,6 +3287,7 @@ class MeshBVHVisualizer extends Group {
 
 				let root = this._roots[ i ];
 				root.depth = this.depth;
+				root.mesh = this.mesh;
 				root.update();
 
 			}
@@ -3691,7 +3359,7 @@ function getRootExtremes( bvh, group ) {
 		splits: [ 0, 0, 0 ]
 	};
 
-	bvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
+	bvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {
 
 		result.total ++;
 		if ( isLeaf ) {
@@ -3699,8 +3367,8 @@ function getRootExtremes( bvh, group ) {
 			result.depth.min = Math.min( depth, result.depth.min );
 			result.depth.max = Math.max( depth, result.depth.max );
 
-			result.tris.min = Math.min( countOrIsUnfinished, result.tris.min );
-			result.tris.max = Math.max( countOrIsUnfinished, result.tris.max );
+			result.tris.min = Math.min( count, result.tris.min );
+			result.tris.max = Math.max( count, result.tris.max );
 
 		} else {
 
@@ -3968,4 +3636,4 @@ function disposeBoundsTree() {
 }
 
 export { MeshBVH, MeshBVHVisualizer as Visualizer, MeshBVHVisualizer, MeshBVHDebug, acceleratedRaycast, computeBoundsTree, disposeBoundsTree, CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED, estimateMemoryInBytes, getBVHExtremes };
-//# sourceMappingURL=index.js.map
+//# sourceMappingURL=index.module.js.map
diff --git a/build/index.module.js.map b/build/index.module.js.map
new file mode 100644
index 000000000..34d489f6d
--- /dev/null
+++ b/build/index.module.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.module.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\r\nexport const closestPointLineToLine = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\r\n\tconst dir1 = new Vector3();\r\n\tconst dir2 = new Vector3();\r\n\tconst v02 = new Vector3();\r\n\treturn function closestPointLineToLine( l1, l2, result ) {\r\n\r\n\t\tconst v0 = l1.start;\r\n\t\tconst v10 = dir1;\r\n\t\tconst v2 = l2.start;\r\n\t\tconst v32 = dir2;\r\n\r\n\t\tv02.subVectors( v0, v2 );\r\n\t\tdir1.subVectors( l1.end, l2.start );\r\n\t\tdir2.subVectors( l2.end, l2.start );\r\n\r\n\t\t// float d0232 = v02.Dot(v32);\r\n\t\tconst d0232 = v02.dot( v32 );\r\n\r\n\t\t// float d3210 = v32.Dot(v10);\r\n\t\tconst d3210 = v32.dot( v10 );\r\n\r\n\t\t// float d3232 = v32.Dot(v32);\r\n\t\tconst d3232 = v32.dot( v32 );\r\n\r\n\t\t// float d0210 = v02.Dot(v10);\r\n\t\tconst d0210 = v02.dot( v10 );\r\n\r\n\t\t// float d1010 = v10.Dot(v10);\r\n\t\tconst d1010 = v10.dot( v10 );\r\n\r\n\t\t// float denom = d1010*d3232 - d3210*d3210;\r\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\r\n\r\n\t\tlet d, d2;\r\n\t\tif ( denom !== 0 ) {\r\n\r\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\r\n\r\n\t\t} else {\r\n\r\n\t\t\td = 0;\r\n\r\n\t\t}\r\n\r\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\r\n\r\n\t\tresult.x = d;\r\n\t\tresult.y = d2;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const closestPointsSegmentToSegment = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\r\n\tconst paramResult = new Vector2();\r\n\tconst temp1 = new Vector3();\r\n\tconst temp2 = new Vector3();\r\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\r\n\r\n\t\tclosestPointLineToLine( l1, l2, paramResult );\r\n\r\n\t\tlet d = paramResult.x;\r\n\t\tlet d2 = paramResult.y;\r\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\tl1.at( d, target1 );\r\n\t\t\tl2.at( d2, target2 );\r\n\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d >= 0 && d <= 1 ) {\r\n\r\n\t\t\t// Only d2 is out of bounds.\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tl2.at( 0, target2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl2.at( 1, target2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\t// Only d is out of bounds.\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tl1.at( 0, target1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl1.at( 1, target1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\r\n\t\t\treturn;\r\n\r\n\t\t} else {\r\n\r\n\t\t\t// Both u and u2 are out of bounds.\r\n\t\t\tlet p;\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tp = l1.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp = l1.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tlet p2;\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tp2 = l2.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp2 = l2.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst closestPoint = temp1;\r\n\t\t\tconst closestPoint2 = temp2;\r\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\r\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\r\n\r\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\r\n\r\n\t\t\t\ttarget1.copy( closestPoint );\r\n\t\t\t\ttarget2.copy( p2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\ttarget1.copy( p );\r\n\t\t\t\ttarget2.copy( closestPoint2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nexport const sphereIntersectTriangle = ( function () {\r\n\r\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\r\n\tconst closestPointTemp = new Vector3();\r\n\tconst projectedPointTemp = new Vector3();\r\n\tconst planeTemp = new Plane();\r\n\tconst lineTemp = new Line3();\r\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\r\n\r\n\t\tconst { radius, center } = sphere;\r\n\t\tconst { a, b, c } = triangle;\r\n\r\n\t\t// phase 1\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = b;\r\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = b;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\t// phase 2\r\n\t\tconst plane = triangle.getPlane( planeTemp );\r\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\r\n\t\tif ( dp <= radius ) {\r\n\r\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\r\n\t\t\tconst cp = triangle.containsPoint( pp );\r\n\t\t\tif ( cp ) return true;\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\r\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\r\n\r\nexport class OrientedBox extends Box3 {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isOrientedBox = true;\r\n\t\tthis.matrix = new Matrix4();\r\n\t\tthis.invMatrix = new Matrix4();\r\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\r\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.sphere = new Sphere();\r\n\r\n\t}\r\n\r\n\tset( min, max, matrix ) {\r\n\r\n\t\tsuper.set( min, max );\r\n\t\tthis.matrix = matrix;\r\n\r\n\t}\r\n\r\n\tcopy( other ) {\r\n\r\n\t\tsuper.copy( other );\r\n\t\tthis.matrix.copy( other.matrix );\r\n\r\n\t}\r\n\r\n}\r\n\r\nOrientedBox.prototype.update = ( function () {\r\n\r\n\treturn function update() {\r\n\r\n\t\tconst matrix = this.matrix;\r\n\t\tconst min = this.min;\r\n\t\tconst max = this.max;\r\n\r\n\t\tconst points = this.points;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\r\n\t\t\t\t\tconst v = points[ i ];\r\n\t\t\t\t\tv.x = x ? max.x : min.x;\r\n\t\t\t\t\tv.y = y ? max.y : min.y;\r\n\t\t\t\t\tv.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tv.applyMatrix4( matrix );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst minVec = points[ 0 ];\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst index = 1 << i;\r\n\t\t\tconst pi = points[ index ];\r\n\r\n\t\t\taxis.subVectors( minVec, pi );\r\n\t\t\tsb.setFromPoints( axis, points );\r\n\r\n\t\t}\r\n\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\r\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\r\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\r\n\r\n\t\tthis.invMatrix.copy( this.matrix ).invert();\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsBox = ( function () {\r\n\r\n\tconst aabbBounds = new SeparatingAxisBounds();\r\n\treturn function intersectsBox( box ) {\r\n\r\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\r\n\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\r\n\t\taabbBounds.min = min.x;\r\n\t\taabbBounds.max = max.x;\r\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.y;\r\n\t\taabbBounds.max = max.y;\r\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.z;\r\n\t\taabbBounds.max = max.z;\r\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\taabbBounds.setFromBox( axis, box );\r\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri = new SeparatingAxisTriangle();\r\n\tconst pointsArr = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( triangle ) {\r\n\r\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri.copy( triangle );\r\n\t\t\tsaTri.update();\r\n\t\t\ttriangle = saTri;\r\n\r\n\t\t} else if ( triangle.needsUpdate ) {\r\n\r\n\t\t\ttriangle.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\r\n\t\tpointsArr[ 0 ] = triangle.a;\r\n\t\tpointsArr[ 1 ] = triangle.b;\r\n\t\tpointsArr[ 2 ] = triangle.c;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst sa = satAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst triSatBounds = triangle.satBounds;\r\n\t\tconst triSatAxes = triangle.satAxes;\r\n\t\tconst points = this.points;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = triSatBounds[ i ];\r\n\t\t\tconst sa = triSatAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.closestPointToPoint = ( function () {\r\n\r\n\treturn function closestPointToPoint( point, target1 ) {\r\n\r\n\t\ttarget1\r\n\t\t\t.copy( point )\r\n\t\t\t.applyMatrix4( this.invMatrix )\r\n\t\t\t.clamp( this.min, this.max )\r\n\t\t\t.applyMatrix4( this.matrix );\r\n\r\n\t\treturn target1;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nOrientedBox.prototype.distanceToBox = ( function () {\r\n\r\n\tconst xyzFields = [ 'x', 'y', 'z' ];\r\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\r\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\r\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.intersectsBox( box ) ) {\r\n\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tbox.getCenter( point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tconst threshold2 = threshold * threshold;\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst points = this.points;\r\n\r\n\r\n\t\t// iterate over every edge and compare distances\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check over all these points\r\n\t\tfor ( let i = 0; i < 8; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tpoint2.copy( p ).clamp( min, max );\r\n\r\n\t\t\tconst dist = p.distanceToSquared( point2 );\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( p );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// generate and check all line segment distances\r\n\t\tlet count = 0;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\r\n\r\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\r\n\r\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\r\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\r\n\r\n\t\t\t\t\t// get obb line segments\r\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst p1 = points[ index ];\r\n\t\t\t\t\tconst p2 = points[ index2 ];\r\n\t\t\t\t\tconst line1 = segments1[ count ];\r\n\t\t\t\t\tline1.set( p1, p2 );\r\n\r\n\r\n\t\t\t\t\t// get aabb line segments\r\n\t\t\t\t\tconst f1 = xyzFields[ i ];\r\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\r\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\r\n\t\t\t\t\tconst line2 = segments2[ count ];\r\n\t\t\t\t\tconst start = line2.start;\r\n\t\t\t\t\tconst end = line2.end;\r\n\r\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\r\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\r\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tcount ++;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check all the other boxes point\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\r\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\r\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\r\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 12; i ++ ) {\r\n\r\n\t\t\tconst l1 = segments1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\r\n\r\n\t\t\t\tconst l2 = segments2[ i2 ];\r\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\r\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsRangeFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\r\n\r\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\r\n\r\n\t\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\nconst triangle = new SeparatingAxisTriangle();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit( nodeIndices = null, terminationIndices = null ) {\n\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\n\n\t\t\tnodeIndices = new Set( nodeIndices );\n\n\t\t}\n\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\n\n\t\t\tterminationIndices = new Set( terminationIndices );\n\n\t\t}\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\t\t\t_traverse( 0 );\n\n\t\t}\n\n\t\tfunction _traverse( node32Index, force = false ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\tlet leftChange = false;\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( left );\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );\n\t\t\t\tif ( traverseLeft ) {\n\n\t\t\t\t\tleftChange = _traverse( left, forceLeft );\n\n\t\t\t\t}\n\n\t\t\t\tlet rightChange = false;\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( right );\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );\n\t\t\t\tif ( traverseRight ) {\n\n\t\t\t\t\trightChange = _traverse( right, forceRight );\n\n\t\t\t\t}\n\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\t\t\tclearBuffer();\n\n\t\t}\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\n\n\t\tconst geometry = this.geometry;\n\t\tif ( callbacks instanceof Function ) {\n\n\t\t\tif ( _intersectsTriangleFunc ) {\n\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\n\t\t\t\t// indices here.\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\n\n\t\t\t\t\tconst i3 = index * 3;\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\n\n\t\t\t\t};\n\n\n\t\t\t}\n\n\t\t\tcallbacks = {\n\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\n\t\t\t\tintersectsBounds: callbacks,\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\n\t\t\t\tintersectsRange: null,\n\n\t\t\t};\n\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );\n\n\t\t}\n\n\t\tlet {\n\t\t\tboundsTraverseOrder,\n\t\t\tintersectsBounds,\n\t\t\tintersectsRange,\n\t\t\tintersectsTriangle,\n\t\t} = callbacks;\n\n\t\tif ( intersectsRange && intersectsTriangle ) {\n\n\t\t\tconst originalIntersectsRange = intersectsRange;\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\n\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t} else if ( ! intersectsRange ) {\n\n\t\t\tif ( intersectsTriangle ) {\n\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t};\n\n\t\t\t} else {\n\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\n\n\t\t\t\t\treturn contained;\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t}\n\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttri2.update();\n\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tconst minThresholdSq = minThreshold * minThreshold;\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\n\t\tlet closestDistanceSq = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\n\t\t\t\t\treturn temp.distanceToSquared( point );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\n\n\t\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistanceSq = distSq;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file
diff --git a/umd/index.js b/build/index.umd.js
similarity index 99%
rename from umd/index.js
rename to build/index.umd.js
index 7cb3b1cc5..f130b7717 100644
--- a/umd/index.js
+++ b/build/index.umd.js
@@ -3658,4 +3658,4 @@
 	Object.defineProperty(exports, '__esModule', { value: true });
 
 }));
-//# sourceMappingURL=index.js.map
+//# sourceMappingURL=index.umd.js.map
diff --git a/build/index.umd.js.map b/build/index.umd.js.map
new file mode 100644
index 000000000..bf47ee628
--- /dev/null
+++ b/build/index.umd.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.umd.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\r\nexport const closestPointLineToLine = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\r\n\tconst dir1 = new Vector3();\r\n\tconst dir2 = new Vector3();\r\n\tconst v02 = new Vector3();\r\n\treturn function closestPointLineToLine( l1, l2, result ) {\r\n\r\n\t\tconst v0 = l1.start;\r\n\t\tconst v10 = dir1;\r\n\t\tconst v2 = l2.start;\r\n\t\tconst v32 = dir2;\r\n\r\n\t\tv02.subVectors( v0, v2 );\r\n\t\tdir1.subVectors( l1.end, l2.start );\r\n\t\tdir2.subVectors( l2.end, l2.start );\r\n\r\n\t\t// float d0232 = v02.Dot(v32);\r\n\t\tconst d0232 = v02.dot( v32 );\r\n\r\n\t\t// float d3210 = v32.Dot(v10);\r\n\t\tconst d3210 = v32.dot( v10 );\r\n\r\n\t\t// float d3232 = v32.Dot(v32);\r\n\t\tconst d3232 = v32.dot( v32 );\r\n\r\n\t\t// float d0210 = v02.Dot(v10);\r\n\t\tconst d0210 = v02.dot( v10 );\r\n\r\n\t\t// float d1010 = v10.Dot(v10);\r\n\t\tconst d1010 = v10.dot( v10 );\r\n\r\n\t\t// float denom = d1010*d3232 - d3210*d3210;\r\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\r\n\r\n\t\tlet d, d2;\r\n\t\tif ( denom !== 0 ) {\r\n\r\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\r\n\r\n\t\t} else {\r\n\r\n\t\t\td = 0;\r\n\r\n\t\t}\r\n\r\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\r\n\r\n\t\tresult.x = d;\r\n\t\tresult.y = d2;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const closestPointsSegmentToSegment = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\r\n\tconst paramResult = new Vector2();\r\n\tconst temp1 = new Vector3();\r\n\tconst temp2 = new Vector3();\r\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\r\n\r\n\t\tclosestPointLineToLine( l1, l2, paramResult );\r\n\r\n\t\tlet d = paramResult.x;\r\n\t\tlet d2 = paramResult.y;\r\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\tl1.at( d, target1 );\r\n\t\t\tl2.at( d2, target2 );\r\n\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d >= 0 && d <= 1 ) {\r\n\r\n\t\t\t// Only d2 is out of bounds.\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tl2.at( 0, target2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl2.at( 1, target2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\t// Only d is out of bounds.\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tl1.at( 0, target1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl1.at( 1, target1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\r\n\t\t\treturn;\r\n\r\n\t\t} else {\r\n\r\n\t\t\t// Both u and u2 are out of bounds.\r\n\t\t\tlet p;\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tp = l1.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp = l1.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tlet p2;\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tp2 = l2.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp2 = l2.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst closestPoint = temp1;\r\n\t\t\tconst closestPoint2 = temp2;\r\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\r\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\r\n\r\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\r\n\r\n\t\t\t\ttarget1.copy( closestPoint );\r\n\t\t\t\ttarget2.copy( p2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\ttarget1.copy( p );\r\n\t\t\t\ttarget2.copy( closestPoint2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nexport const sphereIntersectTriangle = ( function () {\r\n\r\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\r\n\tconst closestPointTemp = new Vector3();\r\n\tconst projectedPointTemp = new Vector3();\r\n\tconst planeTemp = new Plane();\r\n\tconst lineTemp = new Line3();\r\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\r\n\r\n\t\tconst { radius, center } = sphere;\r\n\t\tconst { a, b, c } = triangle;\r\n\r\n\t\t// phase 1\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = b;\r\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = b;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\t// phase 2\r\n\t\tconst plane = triangle.getPlane( planeTemp );\r\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\r\n\t\tif ( dp <= radius ) {\r\n\r\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\r\n\t\t\tconst cp = triangle.containsPoint( pp );\r\n\t\t\tif ( cp ) return true;\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\r\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\r\n\r\nexport class OrientedBox extends Box3 {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isOrientedBox = true;\r\n\t\tthis.matrix = new Matrix4();\r\n\t\tthis.invMatrix = new Matrix4();\r\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\r\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.sphere = new Sphere();\r\n\r\n\t}\r\n\r\n\tset( min, max, matrix ) {\r\n\r\n\t\tsuper.set( min, max );\r\n\t\tthis.matrix = matrix;\r\n\r\n\t}\r\n\r\n\tcopy( other ) {\r\n\r\n\t\tsuper.copy( other );\r\n\t\tthis.matrix.copy( other.matrix );\r\n\r\n\t}\r\n\r\n}\r\n\r\nOrientedBox.prototype.update = ( function () {\r\n\r\n\treturn function update() {\r\n\r\n\t\tconst matrix = this.matrix;\r\n\t\tconst min = this.min;\r\n\t\tconst max = this.max;\r\n\r\n\t\tconst points = this.points;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\r\n\t\t\t\t\tconst v = points[ i ];\r\n\t\t\t\t\tv.x = x ? max.x : min.x;\r\n\t\t\t\t\tv.y = y ? max.y : min.y;\r\n\t\t\t\t\tv.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tv.applyMatrix4( matrix );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst minVec = points[ 0 ];\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst index = 1 << i;\r\n\t\t\tconst pi = points[ index ];\r\n\r\n\t\t\taxis.subVectors( minVec, pi );\r\n\t\t\tsb.setFromPoints( axis, points );\r\n\r\n\t\t}\r\n\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\r\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\r\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\r\n\r\n\t\tthis.invMatrix.copy( this.matrix ).invert();\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsBox = ( function () {\r\n\r\n\tconst aabbBounds = new SeparatingAxisBounds();\r\n\treturn function intersectsBox( box ) {\r\n\r\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\r\n\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\r\n\t\taabbBounds.min = min.x;\r\n\t\taabbBounds.max = max.x;\r\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.y;\r\n\t\taabbBounds.max = max.y;\r\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.z;\r\n\t\taabbBounds.max = max.z;\r\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\taabbBounds.setFromBox( axis, box );\r\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri = new SeparatingAxisTriangle();\r\n\tconst pointsArr = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( triangle ) {\r\n\r\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri.copy( triangle );\r\n\t\t\tsaTri.update();\r\n\t\t\ttriangle = saTri;\r\n\r\n\t\t} else if ( triangle.needsUpdate ) {\r\n\r\n\t\t\ttriangle.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\r\n\t\tpointsArr[ 0 ] = triangle.a;\r\n\t\tpointsArr[ 1 ] = triangle.b;\r\n\t\tpointsArr[ 2 ] = triangle.c;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst sa = satAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst triSatBounds = triangle.satBounds;\r\n\t\tconst triSatAxes = triangle.satAxes;\r\n\t\tconst points = this.points;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = triSatBounds[ i ];\r\n\t\t\tconst sa = triSatAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.closestPointToPoint = ( function () {\r\n\r\n\treturn function closestPointToPoint( point, target1 ) {\r\n\r\n\t\ttarget1\r\n\t\t\t.copy( point )\r\n\t\t\t.applyMatrix4( this.invMatrix )\r\n\t\t\t.clamp( this.min, this.max )\r\n\t\t\t.applyMatrix4( this.matrix );\r\n\r\n\t\treturn target1;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nOrientedBox.prototype.distanceToBox = ( function () {\r\n\r\n\tconst xyzFields = [ 'x', 'y', 'z' ];\r\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\r\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\r\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.intersectsBox( box ) ) {\r\n\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tbox.getCenter( point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tconst threshold2 = threshold * threshold;\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst points = this.points;\r\n\r\n\r\n\t\t// iterate over every edge and compare distances\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check over all these points\r\n\t\tfor ( let i = 0; i < 8; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tpoint2.copy( p ).clamp( min, max );\r\n\r\n\t\t\tconst dist = p.distanceToSquared( point2 );\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( p );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// generate and check all line segment distances\r\n\t\tlet count = 0;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\r\n\r\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\r\n\r\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\r\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\r\n\r\n\t\t\t\t\t// get obb line segments\r\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst p1 = points[ index ];\r\n\t\t\t\t\tconst p2 = points[ index2 ];\r\n\t\t\t\t\tconst line1 = segments1[ count ];\r\n\t\t\t\t\tline1.set( p1, p2 );\r\n\r\n\r\n\t\t\t\t\t// get aabb line segments\r\n\t\t\t\t\tconst f1 = xyzFields[ i ];\r\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\r\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\r\n\t\t\t\t\tconst line2 = segments2[ count ];\r\n\t\t\t\t\tconst start = line2.start;\r\n\t\t\t\t\tconst end = line2.end;\r\n\r\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\r\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\r\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tcount ++;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check all the other boxes point\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\r\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\r\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\r\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 12; i ++ ) {\r\n\r\n\t\t\tconst l1 = segments1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\r\n\r\n\t\t\t\tconst l2 = segments2[ i2 ];\r\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\r\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsRangeFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\r\n\r\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\r\n\r\n\t\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\nconst triangle = new SeparatingAxisTriangle();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit( nodeIndices = null, terminationIndices = null ) {\n\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\n\n\t\t\tnodeIndices = new Set( nodeIndices );\n\n\t\t}\n\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\n\n\t\t\tterminationIndices = new Set( terminationIndices );\n\n\t\t}\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\t\t\t_traverse( 0 );\n\n\t\t}\n\n\t\tfunction _traverse( node32Index, force = false ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\tlet leftChange = false;\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( left );\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );\n\t\t\t\tif ( traverseLeft ) {\n\n\t\t\t\t\tleftChange = _traverse( left, forceLeft );\n\n\t\t\t\t}\n\n\t\t\t\tlet rightChange = false;\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( right );\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );\n\t\t\t\tif ( traverseRight ) {\n\n\t\t\t\t\trightChange = _traverse( right, forceRight );\n\n\t\t\t\t}\n\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\t\t\tclearBuffer();\n\n\t\t}\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\n\n\t\tconst geometry = this.geometry;\n\t\tif ( callbacks instanceof Function ) {\n\n\t\t\tif ( _intersectsTriangleFunc ) {\n\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\n\t\t\t\t// indices here.\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\n\n\t\t\t\t\tconst i3 = index * 3;\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\n\n\t\t\t\t};\n\n\n\t\t\t}\n\n\t\t\tcallbacks = {\n\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\n\t\t\t\tintersectsBounds: callbacks,\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\n\t\t\t\tintersectsRange: null,\n\n\t\t\t};\n\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );\n\n\t\t}\n\n\t\tlet {\n\t\t\tboundsTraverseOrder,\n\t\t\tintersectsBounds,\n\t\t\tintersectsRange,\n\t\t\tintersectsTriangle,\n\t\t} = callbacks;\n\n\t\tif ( intersectsRange && intersectsTriangle ) {\n\n\t\t\tconst originalIntersectsRange = intersectsRange;\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\n\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t} else if ( ! intersectsRange ) {\n\n\t\t\tif ( intersectsTriangle ) {\n\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t};\n\n\t\t\t} else {\n\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\n\n\t\t\t\t\treturn contained;\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t}\n\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttri2.update();\n\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tconst minThresholdSq = minThreshold * minThreshold;\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\n\t\tlet closestDistanceSq = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\n\t\t\t\t\treturn temp.distanceToSquared( point );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\n\n\t\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistanceSq = distSq;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file
diff --git a/esm/index.js.map b/esm/index.js.map
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--- a/esm/index.js.map
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@@ -1 +0,0 @@
-{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/castFunctions.js","../src/castFunctionsBuffer.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tif ( lazyGeneration ) {\r\n\r\n\t\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData );\r\n\t\t\t\tleft.continueGeneration = function () {\r\n\r\n\t\t\t\t\tdelete this.continueGeneration;\r\n\t\t\t\t\tgetCentroidBounds( triangleBounds, lstart, lcount, cacheCentroidBoundingData );\r\n\t\t\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t\t};\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tif ( lazyGeneration ) {\r\n\r\n\t\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData );\r\n\t\t\t\tright.continueGeneration = function () {\r\n\r\n\t\t\t\t\tdelete this.continueGeneration;\r\n\t\t\t\t\tgetCentroidBounds( triangleBounds, rstart, rcount, cacheCentroidBoundingData );\r\n\t\t\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t\t};\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tconst lazyGeneration = options.lazyGeneration;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t// if the geometry doesn't have a bounding box, then let's politely populate it using\r\n\t// the work we did to determine the BVH root bounds\r\n\tif ( geo.boundingBox == null ) {\r\n\r\n\t\tconst rootBox = new Box3();\r\n\t\tgeo.boundingBox = new Box3();\r\n\r\n\t\tfor ( let root of roots ) {\r\n\r\n\t\t\tgeo.boundingBox.union( arrayToBox( root.boundingData, rootBox ) );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nfunction intersectRay( node, ray, target ) {\r\n\r\n\tarrayToBox( node.boundingData, boundingBox );\r\n\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nexport function raycast( node, mesh, raycaster, ray, intersects ) {\r\n\r\n\tif ( node.continueGeneration ) {\r\n\r\n\t\tnode.continueGeneration();\r\n\r\n\t}\r\n\r\n\tconst isLeaf = ! ! node.count;\r\n\tif ( isLeaf ) {\r\n\r\n\t\tintersectTris( mesh, mesh.geometry, raycaster, ray, node.offset, node.count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tif ( intersectRay( node.left, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( node.left, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tif ( intersectRay( node.right, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( node.right, mesh, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( node, mesh, raycaster, ray ) {\r\n\r\n\tif ( node.continueGeneration ) {\r\n\r\n\t\tnode.continueGeneration();\r\n\r\n\t}\r\n\r\n\tconst isLeaf = ! ! node.count;\r\n\tif ( isLeaf ) {\r\n\r\n\t\treturn intersectClosestTri( mesh, mesh.geometry, raycaster, ray, node.offset, node.count );\r\n\r\n\t} else {\r\n\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = node.splitAxis;\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = node.left;\r\n\t\t\tc2 = node.right;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = node.right;\r\n\t\t\tc2 = node.left;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= c2.boundingData[ splitAxis ] :\r\n\t\t\t\tpoint >= c2.boundingData[ splitAxis + 3 ];\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\r\n\r\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\r\n\r\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\r\n\r\n\t\t\t\treturn true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t}\r\n\r\n\treturn function shapecast(\r\n\t\tnode,\r\n\t\tmesh,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc = null,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( node ) {\r\n\r\n\t\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t}\r\n\r\n\t\t\twhile ( ! node.count ) {\r\n\r\n\t\t\t\tnode = node.left;\r\n\t\t\t\tif ( /* skip */ node.continueGeneration ) {\r\n\r\n\t\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn node.offset;\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( node ) {\r\n\r\n\t\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t}\r\n\r\n\t\t\twhile ( ! node.count ) {\r\n\r\n\t\t\t\tnode = node.right;\r\n\t\t\t\tif ( /* skip */ node.continueGeneration ) {\r\n\r\n\t\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn node.offset + node.count;\r\n\r\n\t\t}\r\n\r\n\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\tnode.continueGeneration();\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tif ( isLeaf && intersectsTriangleFunc ) {\r\n\r\n\t\t\tconst geometry = mesh.geometry;\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\tarrayToBox( c1.boundingData, box1 );\r\n\t\t\t\tarrayToBox( c2.boundingData, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1.boundingData, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ! ! c1.count;\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2.boundingData, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ! ! c2.count;\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( node, mesh, geometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\tnode.continueGeneration();\r\n\r\n\t\t}\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! geometry.boundingBox ) {\r\n\r\n\t\t\t\tgeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = mesh.geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = geometry.index;\r\n\t\t\tconst pos = geometry.attributes.position;\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( geometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( node.boundingData, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = geometry;\r\n\t\t\t\tconst res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\r\n\r\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\r\n\t\t\tarrayToBox( left.boundingData, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\r\n\t\t\tarrayToBox( right.boundingData, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","\n/**************************************************************************************************\n *\n * This file is generated from castFunctions.js and scripts/generate-cast-function.mjs. Do not edit.\n *\n *************************************************************************************************/\n\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\n\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\n\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\n\nexport function raycastBuffer( stride4Offset, mesh, raycaster, ray, intersects ) {\n\n\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\tconst isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );\r\n\tif ( isLeaf ) {\n\n\t\tintersectTris( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ], intersects );\n\n\t} else {\n\n\t\tif ( intersectRayBuffer( /* node left */ stride4Offset + 8, float32Array, ray, boxIntersection ) ) {\n\n\t\t\traycastBuffer( /* node left */ stride4Offset + 8, mesh, raycaster, ray, intersects );\n\n\t\t}\n\n\t\tif ( intersectRayBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], float32Array, ray, boxIntersection ) ) {\n\n\t\t\traycastBuffer( /* node right */ uint32Array[ stride4Offset + 6 ], mesh, raycaster, ray, intersects );\n\n\t\t}\n\n\t}\n\n}\n\nexport function raycastFirstBuffer( stride4Offset, mesh, raycaster, ray ) {\n\n\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\tconst isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );\r\n\tif ( isLeaf ) {\n\n\t\treturn intersectClosestTri( mesh, mesh.geometry, raycaster, ray, /* node offset */ uint32Array[ stride4Offset + 6 ], /* node count */ uint16Array[ stride2Offset + 14 ] );\n\n\t} else {\n\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = /* node splitAxis */ uint32Array[ stride4Offset + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\n\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\n\n\t\t\tc1 = /* node left */ stride4Offset + 8;\r\n\t\t\tc2 = /* node right */ uint32Array[ stride4Offset + 6 ];\n\n\t\t} else {\n\n\t\t\tc1 = /* node right */ uint32Array[ stride4Offset + 6 ];\r\n\t\t\tc2 = /* node left */ stride4Offset + 8;\n\n\t\t}\n\n\t\tconst c1Intersection = intersectRayBuffer( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirstBuffer( c1, mesh, raycaster, ray ) : null;\n\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\n\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= /* c2 boundingData */ float32Array[ c2 + splitAxis ] :\r\n\t\t\t\tpoint >= /* c2 boundingData */ float32Array[ c2 + splitAxis + 3 ];\n\n\t\t\tif ( isOutside ) {\n\n\t\t\t\treturn c1Result;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRayBuffer( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirstBuffer( c2, mesh, raycaster, ray ) : null;\n\n\t\tif ( c1Result && c2Result ) {\n\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\n\n\t\t} else {\n\n\t\t\treturn c1Result || c2Result || null;\n\n\t\t}\n\n\t}\n\n}\n\nexport const shapecastBuffer = ( function () {\n\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\n\n\tfunction iterateOverTriangles(\r\n\t\toffset,\r\n\t\tcount,\r\n\t\tgeometry,\r\n\t\tintersectsTriangleFunc,\r\n\t\tcontained,\r\n\t\tdepth,\r\n\t\ttriangle\r\n\t) {\n\n\t\tconst index = geometry.index;\r\n\t\tconst pos = geometry.attributes.position;\r\n\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\n\n\t\t\tsetTriangle( triangle, i, index, pos );\r\n\t\t\ttriangle.needsUpdate = true;\n\n\t\t\tif ( intersectsTriangleFunc( triangle, i, i + 1, i + 2, contained, depth ) ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn false;\n\n\t}\n\n\treturn function shapecastBuffer( stride4Offset,\r\n\t\tmesh,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsTriangleFunc = null,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\n\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffsetBuffer( stride4Offset ) {\n\n\t\t\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\t\twhile ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {\n\n\t\t\t\t/* node */ stride4Offset = /* node left */ stride4Offset + 8, stride2Offset = stride4Offset * 2;\n\n\t\t\t}\n\n\t\t\treturn /* node offset */ uint32Array[ stride4Offset + 6 ];\n\n\t\t}\n\n\t\tfunction getRightEndOffsetBuffer( stride4Offset ) {\n\n\t\t\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\t\twhile ( /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff ) ) {\n\n\t\t\t\t/* node */ stride4Offset = /* node right */ uint32Array[ stride4Offset + 6 ], stride2Offset = stride4Offset * 2;\n\n\t\t\t}\n\n\t\t\treturn /* node offset */ uint32Array[ stride4Offset + 6 ] + /* node count */ uint16Array[ stride2Offset + 14 ];\n\n\t\t}\n\n\t\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\tconst isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );\r\n\t\tif ( isLeaf && intersectsTriangleFunc ) {\n\n\t\t\tconst geometry = mesh.geometry;\r\n\t\t\tconst offset = /* node offset */ uint32Array[ stride4Offset + 6 ];\r\n\t\t\tconst count = /* node count */ uint16Array[ stride2Offset + 14 ];\r\n\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, false, depth, triangle );\n\n\t\t} else {\n\n\t\t\tconst left = /* node left */ stride4Offset + 8;\r\n\t\t\tconst right = /* node right */ uint32Array[ stride4Offset + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\n\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\n\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\n\n\t\t\t\tarrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );\r\n\t\t\t\tarrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );\n\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\n\n\t\t\t\tif ( score2 < score1 ) {\n\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\n\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\n\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\n\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBoxBuffer( /* c1 boundingData */ c1, float32Array, box1 );\n\n\t\t\t}\n\n\t\t\tconst isC1Leaf = ! /* c1 count */ ( uint16Array[ c1 + 15 ] !== 0xffff );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1 );\n\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\n\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffsetBuffer( c1 );\r\n\t\t\t\tconst end = getRightEndOffsetBuffer( c1 );\r\n\t\t\t\tconst count = end - offset;\n\n\t\t\t\tc1StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\n\n\t\t\t} else {\n\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecastBuffer(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\n\n\t\t\t}\n\n\t\t\tif ( c1StopTraversal ) return true;\n\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBoxBuffer( /* c2 boundingData */ c2, float32Array, box2 );\n\n\t\t\tconst isC2Leaf = ! /* c2 count */ ( uint16Array[ c2 + 15 ] !== 0xffff );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1 );\n\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\n\n\t\t\t\tconst geometry = mesh.geometry;\r\n\t\t\t\tconst offset = getLeftOffsetBuffer( c2 );\r\n\t\t\t\tconst end = getRightEndOffsetBuffer( c2 );\r\n\t\t\t\tconst count = end - offset;\n\n\t\t\t\tc2StopTraversal = iterateOverTriangles( offset, count, geometry, intersectsTriangleFunc, true, depth + 1, triangle );\n\n\t\t\t} else {\n\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecastBuffer(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsTriangleFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\n\n\t\t\t}\n\n\t\t\tif ( c2StopTraversal ) return true;\n\n\t\t\treturn false;\n\n\t\t}\n\n\t};\n\n} )();\n\nexport const intersectsGeometryBuffer = ( function () {\n\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\n\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\n\n\treturn function intersectsGeometryBuffer( stride4Offset, mesh, geometry, geometryToBvh, cachedObb = null ) {\n\n\t\tlet stride2Offset = stride4Offset * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\n\n\t\tif ( cachedObb === null ) {\n\n\t\t\tif ( ! geometry.boundingBox ) {\n\n\t\t\t\tgeometry.computeBoundingBox();\n\n\t\t\t}\n\n\t\t\tobb.set( geometry.boundingBox.min, geometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\n\n\t\t}\n\n\t\tconst isLeaf = ! /* node count */ ( uint16Array[ stride2Offset + 15 ] !== 0xffff );\r\n\t\tif ( isLeaf ) {\n\n\t\t\tconst thisGeometry = mesh.geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\n\n\t\t\tconst index = geometry.index;\r\n\t\t\tconst pos = geometry.attributes.position;\n\n\t\t\tconst offset = /* node offset */ uint32Array[ stride4Offset + 6 ];\r\n\t\t\tconst count = /* node count */ uint16Array[ stride2Offset + 14 ];\n\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\n\n\t\t\tif ( geometry.boundsTree ) {\n\n\t\t\t\tarrayToBoxBuffer( /* node boundingData */ stride4Offset, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\n\n\t\t\t\tcachedMesh.geometry = geometry;\r\n\t\t\t\tconst res = geometry.boundsTree.shapecast( cachedMesh, box => obb2.intersectsBox( box ), function ( tri ) {\n\n\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri.update();\n\n\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\n\n\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\n\n\t\t\t\treturn res;\n\n\t\t\t} else {\n\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\n\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\n\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\n\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tconst left = /* node left */ stride4Offset + 8;\r\n\t\t\tconst right = /* node right */ uint32Array[ stride4Offset + 6 ];\n\n\t\t\tarrayToBoxBuffer( /* left boundingData */ left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometryBuffer( left, mesh, geometry, geometryToBvh, cachedObb );\n\n\t\t\tif ( leftIntersection ) return true;\n\n\t\t\tarrayToBoxBuffer( /* right boundingData */ right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometryBuffer( right, mesh, geometry, geometryToBvh, cachedObb );\n\n\t\t\tif ( rightIntersection ) return true;\n\n\t\t\treturn false;\n\n\t\t}\n\n\t};\n\n} )();\n\nfunction intersectRayBuffer( stride4Offset, array, ray, target ) {\n\n\tarrayToBoxBuffer( stride4Offset, array, boundingBox );\n\treturn ray.intersectBox( boundingBox, target );\n\n}\n\nconst bufferStack = [];\nlet _prevBuffer;\nlet _float32Array;\nlet _uint16Array;\nlet _uint32Array;\nexport function setBuffer( buffer ) {\n\n\tif ( _prevBuffer ) {\n\n\t\tbufferStack.push( _prevBuffer );\n\n\t}\n\n\t_prevBuffer = buffer;\n\t_float32Array = new Float32Array( buffer );\n\t_uint16Array = new Uint16Array( buffer );\n\t_uint32Array = new Uint32Array( buffer );\n\n}\n\nexport function clearBuffer() {\n\n\t_prevBuffer = null;\n\t_float32Array = null;\n\t_uint16Array = null;\n\t_uint32Array = null;\n\n\tif ( bufferStack.length ) {\n\n\t\tsetBuffer( bufferStack.pop() );\n\n\t}\n\n}\n\nfunction arrayToBoxBuffer( stride4Offset, array, target ) {\n\n\ttarget.min.x = array[ stride4Offset ];\n\ttarget.min.y = array[ stride4Offset + 1 ];\n\ttarget.min.z = array[ stride4Offset + 2 ];\n\n\ttarget.max.x = array[ stride4Offset + 3 ];\n\ttarget.max.y = array[ stride4Offset + 4 ];\n\ttarget.max.z = array[ stride4Offset + 5 ];\n\n}\n","import { Vector3, BufferAttribute } from 'three';\r\nimport { CENTER } from './Constants.js';\r\nimport { buildTree } from './buildFunctions.js';\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport {\r\n\traycast,\r\n\traycastFirst,\r\n\tshapecast,\r\n\tintersectsGeometry,\r\n} from './castFunctions.js';\r\n\r\nimport {\r\n\traycastBuffer,\r\n\traycastFirstBuffer,\r\n\tshapecastBuffer,\r\n\tintersectsGeometryBuffer,\r\n\tsetBuffer,\r\n\tclearBuffer,\r\n} from './castFunctionsBuffer.js';\r\n\r\n// boundingData  \t\t\t\t: 6 float32\r\n// right / offset \t\t\t\t: 1 uint32\r\n// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\nconst BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\nconst IS_LEAFNODE_FLAG = 0xFFFF;\r\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\r\n\r\nconst obb = new OrientedBox();\r\nconst temp = new Vector3();\r\nconst tri2 = new SeparatingAxisTriangle();\r\nconst temp1 = new Vector3();\r\nconst temp2 = new Vector3();\r\n\r\nexport default class MeshBVH {\r\n\r\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\r\n\r\n\t\tfunction finishTree( node ) {\r\n\r\n\t\t\tif ( node.continueGeneration ) {\r\n\r\n\t\t\t\tnode.continueGeneration();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( ! node.count ) {\r\n\r\n\t\t\t\tfinishTree( node.left );\r\n\t\t\t\tfinishTree( node.right );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfunction countNodes( node ) {\r\n\r\n\t\t\tif ( node.count ) {\r\n\r\n\t\t\t\treturn 1;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\t\tconst stride4Offset = byteOffset / 4;\r\n\t\t\tconst stride2Offset = byteOffset / 2;\r\n\t\t\tconst isLeaf = ! ! node.count;\r\n\t\t\tconst boundingData = node.boundingData;\r\n\t\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tconst offset = node.offset;\r\n\t\t\t\tconst count = node.count;\r\n\t\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tconst left = node.left;\r\n\t\t\t\tconst right = node.right;\r\n\t\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\t\tlet nextUnusedPointer;\r\n\t\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tlet float32Array;\r\n\t\tlet uint32Array;\r\n\t\tlet uint16Array;\r\n\r\n\t\tconst roots = bvh._roots;\r\n\t\tlet rootData;\r\n\r\n\t\tif ( bvh._isPacked ) {\r\n\r\n\t\t\trootData = roots;\r\n\r\n\t\t} else {\r\n\r\n\t\t\trootData = [];\r\n\t\t\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\t\t\tconst root = roots[ i ];\r\n\t\t\t\tfinishTree( root );\r\n\t\t\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\t\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\t\t\tfloat32Array = new Float32Array( buffer );\r\n\t\t\t\tuint32Array = new Uint32Array( buffer );\r\n\t\t\t\tuint16Array = new Uint16Array( buffer );\r\n\t\t\t\tpopulateBuffer( 0, root );\r\n\t\t\t\trootData.push( buffer );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tconst indexAttribute = geometry.getIndex();\r\n\t\tconst result = {\r\n\t\t\troots: rootData,\r\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\r\n\t\t};\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tstatic deserialize( data, geometry, setIndex = true ) {\r\n\r\n\t\tconst { index, roots } = data;\r\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\r\n\t\tbvh._roots = roots;\r\n\t\tbvh._isPacked = true;\r\n\r\n\t\tif ( setIndex ) {\r\n\r\n\t\t\tconst indexAttribute = geometry.getIndex();\r\n\t\t\tif ( indexAttribute === null ) {\r\n\r\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\r\n\t\t\t\tgeometry.setIndex( newIndex );\r\n\r\n\t\t\t} else if ( indexAttribute.array !== index ) {\r\n\r\n\t\t\t\tindexAttribute.array.set( index );\r\n\t\t\t\tindexAttribute.needsUpdate = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn bvh;\r\n\r\n\t}\r\n\r\n\tconstructor( geo, options = {} ) {\r\n\r\n\t\tif ( ! geo.isBufferGeometry ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\r\n\r\n\t\t} else if ( geo.attributes.position.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\r\n\r\n\t\t} else if ( geo.index && geo.index.isInterleavedBufferAttribute ) {\r\n\r\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\r\n\r\n\t\t}\r\n\r\n\t\t// default options\r\n\t\toptions = Object.assign( {\r\n\r\n\t\t\tstrategy: CENTER,\r\n\t\t\tmaxDepth: 40,\r\n\t\t\tmaxLeafTris: 10,\r\n\t\t\tverbose: true,\r\n\t\t\tlazyGeneration: true,\r\n\r\n\t\t\t// undocumented options\r\n\r\n\t\t\t// whether to the pack the data as a buffer or not. The data\r\n\t\t\t// will not be packed if lazyGeneration is true.\r\n\t\t\tpackData: true,\r\n\r\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\r\n\t\t\t[ SKIP_GENERATION ]: false\r\n\r\n\t\t}, options );\r\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\r\n\r\n\t\tthis._isPacked = false;\r\n\t\tthis._roots = null;\r\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\r\n\r\n\t\t\tthis._roots = buildTree( geo, options );\r\n\t\t\tif ( ! options.lazyGeneration && options.packData ) {\r\n\r\n\t\t\t\tthis._roots = MeshBVH.serialize( this, geo, false ).roots;\r\n\t\t\t\tthis._isPacked = true;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\ttraverse( callback, rootIndex = 0 ) {\r\n\r\n\t\tif ( this._isPacked ) {\r\n\r\n\t\t\tconst buffer = this._roots[ rootIndex ];\r\n\t\t\tconst uint32Array = new Uint32Array( buffer );\r\n\t\t\tconst uint16Array = new Uint16Array( buffer );\r\n\t\t\t_traverseBuffer( 0 );\r\n\r\n\t\t\tfunction _traverseBuffer( stride4Offset, depth = 0 ) {\r\n\r\n\t\t\t\tconst stride2Offset = stride4Offset * 2;\r\n\t\t\t\tconst isLeaf = uint16Array[ stride2Offset + 15 ];\r\n\t\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t\tconst offset = uint32Array[ stride4Offset + 6 ];\r\n\t\t\t\t\tconst count = uint16Array[ stride2Offset + 14 ];\r\n\t\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), offset, count );\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tconst left = stride4Offset + BYTES_PER_NODE / 4;\r\n\t\t\t\t\tconst right = uint32Array[ stride4Offset + 6 ];\r\n\t\t\t\t\tconst splitAxis = uint32Array[ stride4Offset + 7 ];\r\n\t\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, stride4Offset * 4, 6 ), splitAxis, false );\r\n\r\n\t\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t\t_traverseBuffer( left, depth + 1 );\r\n\t\t\t\t\t\t_traverseBuffer( right, depth + 1 );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\t_traverseNode( this._roots[ rootIndex ] );\r\n\r\n\t\t\tfunction _traverseNode( node, depth = 0 ) {\r\n\r\n\t\t\t\tconst isLeaf = ! ! node.count;\r\n\t\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t\tcallback( depth, isLeaf, node.boundingData, node.offset, node.count );\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tconst stopTraversal = callback( depth, isLeaf, node.boundingData, node.splitAxis, ! ! node.continueGeneration );\r\n\r\n\t\t\t\t\tif ( ! stopTraversal ) {\r\n\r\n\t\t\t\t\t\tif ( node.left ) _traverseNode( node.left, depth + 1 );\r\n\t\t\t\t\t\tif ( node.right ) _traverseNode( node.right, depth + 1 );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\t/* Core Cast Functions */\r\n\traycast( mesh, raycaster, ray, intersects ) {\r\n\r\n\t\tconst isPacked = this._isPacked;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tif ( isPacked ) {\r\n\r\n\t\t\t\tsetBuffer( root );\r\n\t\t\t\traycastBuffer( 0, mesh, raycaster, ray, intersects );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\traycast( root, mesh, raycaster, ray, intersects );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tisPacked && clearBuffer();\r\n\r\n\t}\r\n\r\n\traycastFirst( mesh, raycaster, ray ) {\r\n\r\n\t\tconst isPacked = this._isPacked;\r\n\t\tlet closestResult = null;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tlet result;\r\n\t\t\tif ( isPacked ) {\r\n\r\n\t\t\t\tsetBuffer( root );\r\n\t\t\t\tresult = raycastFirstBuffer( 0, mesh, raycaster, ray );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tresult = raycastFirst( root, mesh, raycaster, ray );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\r\n\r\n\t\t\t\tclosestResult = result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tisPacked && clearBuffer();\r\n\r\n\t\treturn closestResult;\r\n\r\n\t}\r\n\r\n\tintersectsGeometry( mesh, geometry, geomToMesh ) {\r\n\r\n\t\tconst isPacked = this._isPacked;\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tif ( isPacked ) {\r\n\r\n\t\t\t\tsetBuffer( root );\r\n\t\t\t\tresult = intersectsGeometryBuffer( 0, mesh, geometry, geomToMesh );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tresult = intersectsGeometry( root, mesh, geometry, geomToMesh );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tisPacked && clearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\tshapecast( mesh, intersectsBoundsFunc, intersectsTriangleFunc = null, orderNodesFunc = null ) {\r\n\r\n\t\tconst isPacked = this._isPacked;\r\n\t\tlet result = false;\r\n\t\tfor ( const root of this._roots ) {\r\n\r\n\t\t\tif ( isPacked ) {\r\n\r\n\t\t\t\tsetBuffer( root );\r\n\t\t\t\tresult = shapecastBuffer( 0, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tresult = shapecast( root, mesh, intersectsBoundsFunc, intersectsTriangleFunc, orderNodesFunc );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( result ) {\r\n\r\n\t\t\t\tbreak;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tisPacked && clearBuffer();\r\n\r\n\t\treturn result;\r\n\r\n\t}\r\n\r\n\t/* Derived Cast Functions */\r\n\tintersectsBox( mesh, box, boxToMesh ) {\r\n\r\n\t\tobb.set( box.min, box.max, boxToMesh );\r\n\t\tobb.update();\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => obb.intersectsBox( box ),\r\n\t\t\ttri => obb.intersectsTriangle( tri )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tintersectsSphere( mesh, sphere ) {\r\n\r\n\t\treturn this.shapecast(\r\n\t\t\tmesh,\r\n\t\t\tbox => sphere.intersectsBox( box ),\r\n\t\t\ttri => tri.intersectsSphere( sphere )\r\n\t\t);\r\n\r\n\t}\r\n\r\n\tclosestPointToGeometry( mesh, geom, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\tif ( ! geom.boundingBox ) {\r\n\r\n\t\t\tgeom.computeBoundingBox();\r\n\r\n\t\t}\r\n\r\n\t\tobb.set( geom.boundingBox.min, geom.boundingBox.max, geometryToBvh );\r\n\t\tobb.update();\r\n\r\n\t\tconst pos = geom.attributes.position;\r\n\t\tconst index = geom.index;\r\n\r\n\t\tlet tempTarget1 = null;\r\n\t\tlet tempTarget2 = null;\r\n\t\tif ( target1 ) {\r\n\r\n\t\t\ttempTarget1 = temp1;\r\n\r\n\t\t}\r\n\r\n\t\tif ( target2 ) {\r\n\r\n\t\t\ttempTarget2 = temp2;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\tif ( tri.needsUpdate ) {\r\n\r\n\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tconst sphere1 = tri.sphere;\r\n\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\r\n\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\r\n\r\n\t\t\t\t\tconst sphere2 = tri2.sphere;\r\n\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\r\n\t\t\t\t\tif ( sphereDist > closestDistance ) {\r\n\r\n\t\t\t\t\t\tcontinue;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\ttri2.update();\r\n\r\n\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\r\n\t\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\t\tif ( target1 ) {\r\n\r\n\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tif ( target2 ) {\r\n\r\n\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\r\n\t\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\treturn false;\r\n\r\n\t\t\t},\r\n\t\t\tbox => obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\r\n\r\n\t\t// early out if under minThreshold\r\n\t\t// skip checking if over maxThreshold\r\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\r\n\t\t// returns Infinity if no value found\r\n\t\tlet closestDistance = Infinity;\r\n\t\tthis.shapecast(\r\n\r\n\t\t\tmesh,\r\n\t\t\t( box, isLeaf, score ) => score < closestDistance && score < maxThreshold,\r\n\t\t\ttri => {\r\n\r\n\t\t\t\ttri.closestPointToPoint( point, temp );\r\n\t\t\t\tconst dist = point.distanceTo( temp );\r\n\t\t\t\tif ( dist < closestDistance ) {\r\n\r\n\t\t\t\t\tif ( target ) {\r\n\r\n\t\t\t\t\t\ttarget.copy( temp );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tclosestDistance = dist;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( dist < minThreshold ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t},\r\n\t\t\tbox => box.distanceToPoint( point )\r\n\r\n\t\t);\r\n\r\n\t\treturn closestDistance;\r\n\r\n\t}\r\n\r\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\r\n\r\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\r\n\r\n\t}\r\n\r\n}\r\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis._oldDepth = - 1;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._boundsTree = null;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tthis._oldDepth = this.depth;\r\n\t\tthis._boundsTree = this.mesh.geometry.boundsTree;\r\n\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( this._boundsTree ) {\r\n\r\n\t\t\tthis._boundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( countOrIsUnfinished, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( countOrIsUnfinished, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 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this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file
diff --git a/rollup.config.js b/rollup.config.js
index d401ca404..06d900e9a 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -3,32 +3,32 @@ export default [
 		input: './src/index.js',
 		treeshake: false,
 		external: p => /^three/.test( p ),
-	
+
 		output: {
-	
+
 			name: 'MeshBVHLib',
 			extend: true,
 			format: 'umd',
-			file: './umd/index.js',
+			file: './build/index.umd.js',
 			sourcemap: true,
-	
+
 			globals: p => /^three/.test( p ) ? 'THREE' : null,
-	
+
 		},
-	
+
 	},
 	{
 		input: './src/index.js',
 		treeshake: false,
 		external: p => /^three/.test( p ),
-	
+
 		output: {
-	
+
 			format: 'esm',
-			file: './esm/index.js',
+			file: './build/index.module.js',
 			sourcemap: true,
-	
+
 		},
-	
+
 	}
 ];
diff --git a/umd/index.js.map b/umd/index.js.map
deleted file mode 100644
index eb497466f..000000000
--- a/umd/index.js.map
+++ /dev/null
@@ -1 +0,0 @@
-{"version":3,"file":"index.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\r\nexport const closestPointLineToLine = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\r\n\tconst dir1 = new Vector3();\r\n\tconst dir2 = new Vector3();\r\n\tconst v02 = new Vector3();\r\n\treturn function closestPointLineToLine( l1, l2, result ) {\r\n\r\n\t\tconst v0 = l1.start;\r\n\t\tconst v10 = dir1;\r\n\t\tconst v2 = l2.start;\r\n\t\tconst v32 = dir2;\r\n\r\n\t\tv02.subVectors( v0, v2 );\r\n\t\tdir1.subVectors( l1.end, l2.start );\r\n\t\tdir2.subVectors( l2.end, l2.start );\r\n\r\n\t\t// float d0232 = v02.Dot(v32);\r\n\t\tconst d0232 = v02.dot( v32 );\r\n\r\n\t\t// float d3210 = v32.Dot(v10);\r\n\t\tconst d3210 = v32.dot( v10 );\r\n\r\n\t\t// float d3232 = v32.Dot(v32);\r\n\t\tconst d3232 = v32.dot( v32 );\r\n\r\n\t\t// float d0210 = v02.Dot(v10);\r\n\t\tconst d0210 = v02.dot( v10 );\r\n\r\n\t\t// float d1010 = v10.Dot(v10);\r\n\t\tconst d1010 = v10.dot( v10 );\r\n\r\n\t\t// float denom = d1010*d3232 - d3210*d3210;\r\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\r\n\r\n\t\tlet d, d2;\r\n\t\tif ( denom !== 0 ) {\r\n\r\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\r\n\r\n\t\t} else {\r\n\r\n\t\t\td = 0;\r\n\r\n\t\t}\r\n\r\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\r\n\r\n\t\tresult.x = d;\r\n\t\tresult.y = d2;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const closestPointsSegmentToSegment = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\r\n\tconst paramResult = new Vector2();\r\n\tconst temp1 = new Vector3();\r\n\tconst temp2 = new Vector3();\r\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\r\n\r\n\t\tclosestPointLineToLine( l1, l2, paramResult );\r\n\r\n\t\tlet d = paramResult.x;\r\n\t\tlet d2 = paramResult.y;\r\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\tl1.at( d, target1 );\r\n\t\t\tl2.at( d2, target2 );\r\n\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d >= 0 && d <= 1 ) {\r\n\r\n\t\t\t// Only d2 is out of bounds.\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tl2.at( 0, target2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl2.at( 1, target2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\t// Only d is out of bounds.\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tl1.at( 0, target1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl1.at( 1, target1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\r\n\t\t\treturn;\r\n\r\n\t\t} else {\r\n\r\n\t\t\t// Both u and u2 are out of bounds.\r\n\t\t\tlet p;\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tp = l1.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp = l1.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tlet p2;\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tp2 = l2.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp2 = l2.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst closestPoint = temp1;\r\n\t\t\tconst closestPoint2 = temp2;\r\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\r\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\r\n\r\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\r\n\r\n\t\t\t\ttarget1.copy( closestPoint );\r\n\t\t\t\ttarget2.copy( p2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\ttarget1.copy( p );\r\n\t\t\t\ttarget2.copy( closestPoint2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nexport const sphereIntersectTriangle = ( function () {\r\n\r\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\r\n\tconst closestPointTemp = new Vector3();\r\n\tconst projectedPointTemp = new Vector3();\r\n\tconst planeTemp = new Plane();\r\n\tconst lineTemp = new Line3();\r\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\r\n\r\n\t\tconst { radius, center } = sphere;\r\n\t\tconst { a, b, c } = triangle;\r\n\r\n\t\t// phase 1\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = b;\r\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = b;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\t// phase 2\r\n\t\tconst plane = triangle.getPlane( planeTemp );\r\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\r\n\t\tif ( dp <= radius ) {\r\n\r\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\r\n\t\t\tconst cp = triangle.containsPoint( pp );\r\n\t\t\tif ( cp ) return true;\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\r\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\r\n\r\nexport class OrientedBox extends Box3 {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isOrientedBox = true;\r\n\t\tthis.matrix = new Matrix4();\r\n\t\tthis.invMatrix = new Matrix4();\r\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\r\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.sphere = new Sphere();\r\n\r\n\t}\r\n\r\n\tset( min, max, matrix ) {\r\n\r\n\t\tsuper.set( min, max );\r\n\t\tthis.matrix = matrix;\r\n\r\n\t}\r\n\r\n\tcopy( other ) {\r\n\r\n\t\tsuper.copy( other );\r\n\t\tthis.matrix.copy( other.matrix );\r\n\r\n\t}\r\n\r\n}\r\n\r\nOrientedBox.prototype.update = ( function () {\r\n\r\n\treturn function update() {\r\n\r\n\t\tconst matrix = this.matrix;\r\n\t\tconst min = this.min;\r\n\t\tconst max = this.max;\r\n\r\n\t\tconst points = this.points;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\r\n\t\t\t\t\tconst v = points[ i ];\r\n\t\t\t\t\tv.x = x ? max.x : min.x;\r\n\t\t\t\t\tv.y = y ? max.y : min.y;\r\n\t\t\t\t\tv.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tv.applyMatrix4( matrix );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst minVec = points[ 0 ];\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst index = 1 << i;\r\n\t\t\tconst pi = points[ index ];\r\n\r\n\t\t\taxis.subVectors( minVec, pi );\r\n\t\t\tsb.setFromPoints( axis, points );\r\n\r\n\t\t}\r\n\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\r\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\r\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\r\n\r\n\t\tthis.invMatrix.copy( this.matrix ).invert();\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsBox = ( function () {\r\n\r\n\tconst aabbBounds = new SeparatingAxisBounds();\r\n\treturn function intersectsBox( box ) {\r\n\r\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\r\n\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\r\n\t\taabbBounds.min = min.x;\r\n\t\taabbBounds.max = max.x;\r\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.y;\r\n\t\taabbBounds.max = max.y;\r\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.z;\r\n\t\taabbBounds.max = max.z;\r\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\taabbBounds.setFromBox( axis, box );\r\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri = new SeparatingAxisTriangle();\r\n\tconst pointsArr = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( triangle ) {\r\n\r\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri.copy( triangle );\r\n\t\t\tsaTri.update();\r\n\t\t\ttriangle = saTri;\r\n\r\n\t\t} else if ( triangle.needsUpdate ) {\r\n\r\n\t\t\ttriangle.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\r\n\t\tpointsArr[ 0 ] = triangle.a;\r\n\t\tpointsArr[ 1 ] = triangle.b;\r\n\t\tpointsArr[ 2 ] = triangle.c;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst sa = satAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst triSatBounds = triangle.satBounds;\r\n\t\tconst triSatAxes = triangle.satAxes;\r\n\t\tconst points = this.points;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = triSatBounds[ i ];\r\n\t\t\tconst sa = triSatAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.closestPointToPoint = ( function () {\r\n\r\n\treturn function closestPointToPoint( point, target1 ) {\r\n\r\n\t\ttarget1\r\n\t\t\t.copy( point )\r\n\t\t\t.applyMatrix4( this.invMatrix )\r\n\t\t\t.clamp( this.min, this.max )\r\n\t\t\t.applyMatrix4( this.matrix );\r\n\r\n\t\treturn target1;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nOrientedBox.prototype.distanceToBox = ( function () {\r\n\r\n\tconst xyzFields = [ 'x', 'y', 'z' ];\r\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\r\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\r\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.intersectsBox( box ) ) {\r\n\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tbox.getCenter( point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tconst threshold2 = threshold * threshold;\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst points = this.points;\r\n\r\n\r\n\t\t// iterate over every edge and compare distances\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check over all these points\r\n\t\tfor ( let i = 0; i < 8; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tpoint2.copy( p ).clamp( min, max );\r\n\r\n\t\t\tconst dist = p.distanceToSquared( point2 );\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( p );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// generate and check all line segment distances\r\n\t\tlet count = 0;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\r\n\r\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\r\n\r\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\r\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\r\n\r\n\t\t\t\t\t// get obb line segments\r\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst p1 = points[ index ];\r\n\t\t\t\t\tconst p2 = points[ index2 ];\r\n\t\t\t\t\tconst line1 = segments1[ count ];\r\n\t\t\t\t\tline1.set( p1, p2 );\r\n\r\n\r\n\t\t\t\t\t// get aabb line segments\r\n\t\t\t\t\tconst f1 = xyzFields[ i ];\r\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\r\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\r\n\t\t\t\t\tconst line2 = segments2[ count ];\r\n\t\t\t\t\tconst start = line2.start;\r\n\t\t\t\t\tconst end = line2.end;\r\n\r\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\r\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\r\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tcount ++;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check all the other boxes point\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\r\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\r\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\r\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 12; i ++ ) {\r\n\r\n\t\t\tconst l1 = segments1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\r\n\r\n\t\t\t\tconst l2 = segments2[ i2 ];\r\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\r\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsRangeFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\r\n\r\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\r\n\r\n\t\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\nconst triangle = new SeparatingAxisTriangle();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit( nodeIndices = null, terminationIndices = null ) {\n\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\n\n\t\t\tnodeIndices = new Set( nodeIndices );\n\n\t\t}\n\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\n\n\t\t\tterminationIndices = new Set( terminationIndices );\n\n\t\t}\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\t\t\t_traverse( 0 );\n\n\t\t}\n\n\t\tfunction _traverse( node32Index, force = false ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\tlet leftChange = false;\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( left );\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );\n\t\t\t\tif ( traverseLeft ) {\n\n\t\t\t\t\tleftChange = _traverse( left, forceLeft );\n\n\t\t\t\t}\n\n\t\t\t\tlet rightChange = false;\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( right );\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );\n\t\t\t\tif ( traverseRight ) {\n\n\t\t\t\t\trightChange = _traverse( right, forceRight );\n\n\t\t\t\t}\n\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\t\t\tclearBuffer();\n\n\t\t}\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\n\n\t\tconst geometry = this.geometry;\n\t\tif ( callbacks instanceof Function ) {\n\n\t\t\tif ( _intersectsTriangleFunc ) {\n\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\n\t\t\t\t// indices here.\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\n\n\t\t\t\t\tconst i3 = index * 3;\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\n\n\t\t\t\t};\n\n\n\t\t\t}\n\n\t\t\tcallbacks = {\n\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\n\t\t\t\tintersectsBounds: callbacks,\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\n\t\t\t\tintersectsRange: null,\n\n\t\t\t};\n\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );\n\n\t\t}\n\n\t\tlet {\n\t\t\tboundsTraverseOrder,\n\t\t\tintersectsBounds,\n\t\t\tintersectsRange,\n\t\t\tintersectsTriangle,\n\t\t} = callbacks;\n\n\t\tif ( intersectsRange && intersectsTriangle ) {\n\n\t\t\tconst originalIntersectsRange = intersectsRange;\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\n\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t} else if ( ! intersectsRange ) {\n\n\t\t\tif ( intersectsTriangle ) {\n\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t};\n\n\t\t\t} else {\n\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\n\n\t\t\t\t\treturn contained;\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t}\n\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttri2.update();\n\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tconst minThresholdSq = minThreshold * minThreshold;\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\n\t\tlet closestDistanceSq = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\n\t\t\t\t\treturn temp.distanceToSquared( point );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\n\n\t\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistanceSq = distSq;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file

From 425531bef72006f382e4bcea62f52b2a745eb558 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 21 May 2021 12:44:02 -0700
Subject: [PATCH 136/139] update

---
 example/pointCloudIntersection.js | 52 ++++++++++++++++---------------
 src/MeshBVH.js                    |  2 +-
 2 files changed, 28 insertions(+), 26 deletions(-)

diff --git a/example/pointCloudIntersection.js b/example/pointCloudIntersection.js
index a9af8788d..41d805a32 100644
--- a/example/pointCloudIntersection.js
+++ b/example/pointCloudIntersection.js
@@ -150,44 +150,46 @@ window.addEventListener( 'pointermove', ( event ) => {
 		let closestDistance = Infinity;
 		bvhMesh.geometry.boundsTree.shapecast(
 			bvhMesh,
-			( box, isLeaf, score ) => {
+			{
+				boundsTraverseOrder: box => {
 
-				// if we've already found a point that's closer then the full bounds then
-				// don't traverse further.
-				if ( score > closestDistance ) {
+					// traverse the closer bounds first.
+					return box.distanceToPoint( ray.origin );
 
-					return NOT_INTERSECTED;
+				},
+				intersectsBounds: ( box, isLeaf, score ) => {
 
-				}
+					// if we've already found a point that's closer then the full bounds then
+					// don't traverse further.
+					if ( score > closestDistance ) {
 
-				box.expandByScalar( localThreshold );
-				return ray.intersectsBox( box ) ? INTERSECTED : NOT_INTERSECTED;
+						return NOT_INTERSECTED;
 
-			},
-			triangle => {
+					}
 
-				const distancesToRaySq = ray.distanceSqToPoint( triangle.a );
-				if ( distancesToRaySq < localThresholdSq ) {
+					box.expandByScalar( localThreshold );
+					return ray.intersectsBox( box ) ? INTERSECTED : NOT_INTERSECTED;
 
-					// track the closest found point distance so we can early out traversal and only
-					// use the closest point along the ray.
-					const distanceToPoint = ray.origin.distanceTo( triangle.a );
-					if ( distanceToPoint < closestDistance ) {
+				},
+				intersectsTriangle: triangle => {
 
-						closestDistance = distanceToPoint;
-						sphereCollision.position.copy( triangle.a ).applyMatrix4( bvhMesh.matrixWorld );
-						sphereCollision.visible = true;
+					const distancesToRaySq = ray.distanceSqToPoint( triangle.a );
+					if ( distancesToRaySq < localThresholdSq ) {
 
-					}
+						// track the closest found point distance so we can early out traversal and only
+						// use the closest point along the ray.
+						const distanceToPoint = ray.origin.distanceTo( triangle.a );
+						if ( distanceToPoint < closestDistance ) {
 
-				}
+							closestDistance = distanceToPoint;
+							sphereCollision.position.copy( triangle.a ).applyMatrix4( bvhMesh.matrixWorld );
+							sphereCollision.visible = true;
 
-			},
-			box => {
+						}
 
-				// traverse the closer bounds first.
-				return box.distanceToPoint( ray.origin );
+					}
 
+				},
 			}
 		);
 
diff --git a/src/MeshBVH.js b/src/MeshBVH.js
index 4a92acc55..c406e3440 100644
--- a/src/MeshBVH.js
+++ b/src/MeshBVH.js
@@ -391,7 +391,7 @@ export default class MeshBVH {
 
 			};
 
-			console.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );
+			console.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.' );
 
 		}
 

From 0d8b9d580be6b6e417d515f036edc65cb101d2ba Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 21 May 2021 12:45:55 -0700
Subject: [PATCH 137/139] npm run build

---
 build/index.module.js                         |   42 +-
 build/index.module.js.map                     |    2 +-
 build/index.umd.js                            | 3675 +++++++++++++++++
 build/index.umd.js.map                        |    2 +-
 example/bundle/asyncGenerate.4a48c6e8.js      |   14 +-
 example/bundle/asyncGenerate.html             |    3 +-
 example/bundle/characterMovement.725f956b.js  |   14 +-
 example/bundle/collectTriangles.9c45819a.js   |   53 +-
 example/bundle/collectTriangles.html          |    3 +-
 example/bundle/distancecast.4107d8f2.js       |   51 +-
 example/bundle/distancecast.html              |    3 +-
 .../bundle/generateAsync.worker.13d14241.js   |    8 +-
 example/bundle/physics.50b811f1.js            |   14 +-
 .../bundle/pointCloudIntersection.fd058085.js |   26 +-
 example/bundle/pointCloudIntersection.html    |    3 +-
 example/bundle/randomSampleDebug.32ad2b43.js  |   12 +-
 example/bundle/raycast.88074831.js            |   53 +-
 example/bundle/raycast.html                   |    3 +-
 example/bundle/sculpt.493e9c78.js             |   53 +-
 example/bundle/selection.383a520f.js          |   14 +-
 example/bundle/shapecast.b93a7fe2.js          |   53 +-
 21 files changed, 3900 insertions(+), 201 deletions(-)
 create mode 100644 build/index.umd.js

diff --git a/build/index.module.js b/build/index.module.js
index c9d3c96f6..08fd34f0f 100644
--- a/build/index.module.js
+++ b/build/index.module.js
@@ -2157,6 +2157,7 @@ const shapecast = ( function () {
 		intersectsBoundsFunc,
 		intersectsRangeFunc,
 		nodeScoreFunc = null,
+		nodeIndexByteOffset = 0, // offset for unique node identifier
 		depth = 0,
 		triangle = _triangle,
 		cachedBox1 = _cachedBox1,
@@ -2254,7 +2255,7 @@ const shapecast = ( function () {
 			}
 
 			const isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );
-			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );
+			const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, nodeIndexByteOffset + c1 );
 
 			let c1StopTraversal;
 			if ( c1Intersection === CONTAINED ) {
@@ -2263,7 +2264,7 @@ const shapecast = ( function () {
 				const end = getRightEndOffset( c1 );
 				const count = end - offset;
 
-				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );
+				c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c1 );
 
 			} else {
 
@@ -2276,6 +2277,7 @@ const shapecast = ( function () {
 						intersectsBoundsFunc,
 						intersectsRangeFunc,
 						nodeScoreFunc,
+						nodeIndexByteOffset,
 						depth + 1,
 						triangle,
 						cachedBox1,
@@ -2292,7 +2294,7 @@ const shapecast = ( function () {
 			arrayToBox$1( c2, float32Array, box2 );
 
 			const isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );
-			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );
+			const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, nodeIndexByteOffset + c2 );
 
 			let c2StopTraversal;
 			if ( c2Intersection === CONTAINED ) {
@@ -2301,7 +2303,7 @@ const shapecast = ( function () {
 				const end = getRightEndOffset( c2 );
 				const count = end - offset;
 
-				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );
+				c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c2 );
 
 			} else {
 
@@ -2314,6 +2316,7 @@ const shapecast = ( function () {
 						intersectsBoundsFunc,
 						intersectsRangeFunc,
 						nodeScoreFunc,
+						nodeIndexByteOffset,
 						depth + 1,
 						triangle,
 						cachedBox1,
@@ -2638,6 +2641,7 @@ class MeshBVH {
 		const indexArr = geometry.index.array;
 		const posArr = geometry.attributes.position.array;
 		let buffer, uint32Array, uint16Array, float32Array;
+		let byteOffset = 0;
 		const roots = this._roots;
 		for ( let i = 0, l = roots.length; i < l; i ++ ) {
 
@@ -2645,11 +2649,13 @@ class MeshBVH {
 			uint32Array = new Uint32Array( buffer );
 			uint16Array = new Uint16Array( buffer );
 			float32Array = new Float32Array( buffer );
-			_traverse( 0 );
+
+			_traverse( 0, byteOffset );
+			byteOffset += buffer.byteLength;
 
 		}
 
-		function _traverse( node32Index, force = false ) {
+		function _traverse( node32Index, byteOffset, force = false ) {
 
 			const node16Index = node32Index * 2;
 			const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
@@ -2713,21 +2719,26 @@ class MeshBVH {
 				const left = node32Index + 8;
 				const right = uint32Array[ node32Index + 6 ];
 
+				// the indentifying node indices provided by the shapecast function include offsets of all
+				// root buffers to guarantee they're unique between roots so offset left and right indices here.
+				const offsetLeft = left + byteOffset;
+				const offsetRight = right + byteOffset;
+
 				let leftChange = false;
-				let forceLeft = force || terminationIndices && terminationIndices.has( left );
-				let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );
+				let forceLeft = force || terminationIndices && terminationIndices.has( offsetLeft );
+				let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( offsetLeft ) : true );
 				if ( traverseLeft ) {
 
-					leftChange = _traverse( left, forceLeft );
+					leftChange = _traverse( left, byteOffset, forceLeft );
 
 				}
 
 				let rightChange = false;
-				let forceRight = force || terminationIndices && terminationIndices.has( right );
-				let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );
+				let forceRight = force || terminationIndices && terminationIndices.has( offsetRight );
+				let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( offsetRight ) : true );
 				if ( traverseRight ) {
 
-					rightChange = _traverse( right, forceRight );
+					rightChange = _traverse( right, byteOffset, forceRight );
 
 				}
 
@@ -2884,7 +2895,7 @@ class MeshBVH {
 
 			};
 
-			console.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );
+			console.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.' );
 
 		}
 
@@ -2933,10 +2944,11 @@ class MeshBVH {
 		}
 
 		let result = false;
+		let byteOffset = 0;
 		for ( const root of this._roots ) {
 
 			setBuffer( root );
-			result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );
+			result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder, byteOffset );
 			clearBuffer();
 
 			if ( result ) {
@@ -2945,6 +2957,8 @@ class MeshBVH {
 
 			}
 
+			byteOffset += root.byteLength;
+
 		}
 
 		return result;
diff --git a/build/index.module.js.map b/build/index.module.js.map
index 34d489f6d..d2760e192 100644
--- a/build/index.module.js.map
+++ b/build/index.module.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.module.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\r\nexport const closestPointLineToLine = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\r\n\tconst dir1 = new Vector3();\r\n\tconst dir2 = new Vector3();\r\n\tconst v02 = new Vector3();\r\n\treturn function closestPointLineToLine( l1, l2, result ) {\r\n\r\n\t\tconst v0 = l1.start;\r\n\t\tconst v10 = dir1;\r\n\t\tconst v2 = l2.start;\r\n\t\tconst v32 = dir2;\r\n\r\n\t\tv02.subVectors( v0, v2 );\r\n\t\tdir1.subVectors( l1.end, l2.start );\r\n\t\tdir2.subVectors( l2.end, l2.start );\r\n\r\n\t\t// float d0232 = v02.Dot(v32);\r\n\t\tconst d0232 = v02.dot( v32 );\r\n\r\n\t\t// float d3210 = v32.Dot(v10);\r\n\t\tconst d3210 = v32.dot( v10 );\r\n\r\n\t\t// float d3232 = v32.Dot(v32);\r\n\t\tconst d3232 = v32.dot( v32 );\r\n\r\n\t\t// float d0210 = v02.Dot(v10);\r\n\t\tconst d0210 = v02.dot( v10 );\r\n\r\n\t\t// float d1010 = v10.Dot(v10);\r\n\t\tconst d1010 = v10.dot( v10 );\r\n\r\n\t\t// float denom = d1010*d3232 - d3210*d3210;\r\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\r\n\r\n\t\tlet d, d2;\r\n\t\tif ( denom !== 0 ) {\r\n\r\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\r\n\r\n\t\t} else {\r\n\r\n\t\t\td = 0;\r\n\r\n\t\t}\r\n\r\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\r\n\r\n\t\tresult.x = d;\r\n\t\tresult.y = d2;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const closestPointsSegmentToSegment = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\r\n\tconst paramResult = new Vector2();\r\n\tconst temp1 = new Vector3();\r\n\tconst temp2 = new Vector3();\r\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\r\n\r\n\t\tclosestPointLineToLine( l1, l2, paramResult );\r\n\r\n\t\tlet d = paramResult.x;\r\n\t\tlet d2 = paramResult.y;\r\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\tl1.at( d, target1 );\r\n\t\t\tl2.at( d2, target2 );\r\n\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d >= 0 && d <= 1 ) {\r\n\r\n\t\t\t// Only d2 is out of bounds.\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tl2.at( 0, target2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl2.at( 1, target2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\t// Only d is out of bounds.\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tl1.at( 0, target1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl1.at( 1, target1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\r\n\t\t\treturn;\r\n\r\n\t\t} else {\r\n\r\n\t\t\t// Both u and u2 are out of bounds.\r\n\t\t\tlet p;\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tp = l1.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp = l1.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tlet p2;\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tp2 = l2.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp2 = l2.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst closestPoint = temp1;\r\n\t\t\tconst closestPoint2 = temp2;\r\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\r\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\r\n\r\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\r\n\r\n\t\t\t\ttarget1.copy( closestPoint );\r\n\t\t\t\ttarget2.copy( p2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\ttarget1.copy( p );\r\n\t\t\t\ttarget2.copy( closestPoint2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nexport const sphereIntersectTriangle = ( function () {\r\n\r\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\r\n\tconst closestPointTemp = new Vector3();\r\n\tconst projectedPointTemp = new Vector3();\r\n\tconst planeTemp = new Plane();\r\n\tconst lineTemp = new Line3();\r\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\r\n\r\n\t\tconst { radius, center } = sphere;\r\n\t\tconst { a, b, c } = triangle;\r\n\r\n\t\t// phase 1\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = b;\r\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = b;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\t// phase 2\r\n\t\tconst plane = triangle.getPlane( planeTemp );\r\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\r\n\t\tif ( dp <= radius ) {\r\n\r\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\r\n\t\t\tconst cp = triangle.containsPoint( pp );\r\n\t\t\tif ( cp ) return true;\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\r\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\r\n\r\nexport class OrientedBox extends Box3 {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isOrientedBox = true;\r\n\t\tthis.matrix = new Matrix4();\r\n\t\tthis.invMatrix = new Matrix4();\r\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\r\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.sphere = new Sphere();\r\n\r\n\t}\r\n\r\n\tset( min, max, matrix ) {\r\n\r\n\t\tsuper.set( min, max );\r\n\t\tthis.matrix = matrix;\r\n\r\n\t}\r\n\r\n\tcopy( other ) {\r\n\r\n\t\tsuper.copy( other );\r\n\t\tthis.matrix.copy( other.matrix );\r\n\r\n\t}\r\n\r\n}\r\n\r\nOrientedBox.prototype.update = ( function () {\r\n\r\n\treturn function update() {\r\n\r\n\t\tconst matrix = this.matrix;\r\n\t\tconst min = this.min;\r\n\t\tconst max = this.max;\r\n\r\n\t\tconst points = this.points;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\r\n\t\t\t\t\tconst v = points[ i ];\r\n\t\t\t\t\tv.x = x ? max.x : min.x;\r\n\t\t\t\t\tv.y = y ? max.y : min.y;\r\n\t\t\t\t\tv.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tv.applyMatrix4( matrix );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst minVec = points[ 0 ];\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst index = 1 << i;\r\n\t\t\tconst pi = points[ index ];\r\n\r\n\t\t\taxis.subVectors( minVec, pi );\r\n\t\t\tsb.setFromPoints( axis, points );\r\n\r\n\t\t}\r\n\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\r\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\r\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\r\n\r\n\t\tthis.invMatrix.copy( this.matrix ).invert();\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsBox = ( function () {\r\n\r\n\tconst aabbBounds = new SeparatingAxisBounds();\r\n\treturn function intersectsBox( box ) {\r\n\r\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\r\n\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\r\n\t\taabbBounds.min = min.x;\r\n\t\taabbBounds.max = max.x;\r\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.y;\r\n\t\taabbBounds.max = max.y;\r\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.z;\r\n\t\taabbBounds.max = max.z;\r\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\taabbBounds.setFromBox( axis, box );\r\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri = new SeparatingAxisTriangle();\r\n\tconst pointsArr = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( triangle ) {\r\n\r\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri.copy( triangle );\r\n\t\t\tsaTri.update();\r\n\t\t\ttriangle = saTri;\r\n\r\n\t\t} else if ( triangle.needsUpdate ) {\r\n\r\n\t\t\ttriangle.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\r\n\t\tpointsArr[ 0 ] = triangle.a;\r\n\t\tpointsArr[ 1 ] = triangle.b;\r\n\t\tpointsArr[ 2 ] = triangle.c;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst sa = satAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst triSatBounds = triangle.satBounds;\r\n\t\tconst triSatAxes = triangle.satAxes;\r\n\t\tconst points = this.points;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = triSatBounds[ i ];\r\n\t\t\tconst sa = triSatAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.closestPointToPoint = ( function () {\r\n\r\n\treturn function closestPointToPoint( point, target1 ) {\r\n\r\n\t\ttarget1\r\n\t\t\t.copy( point )\r\n\t\t\t.applyMatrix4( this.invMatrix )\r\n\t\t\t.clamp( this.min, this.max )\r\n\t\t\t.applyMatrix4( this.matrix );\r\n\r\n\t\treturn target1;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nOrientedBox.prototype.distanceToBox = ( function () {\r\n\r\n\tconst xyzFields = [ 'x', 'y', 'z' ];\r\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\r\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\r\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.intersectsBox( box ) ) {\r\n\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tbox.getCenter( point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tconst threshold2 = threshold * threshold;\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst points = this.points;\r\n\r\n\r\n\t\t// iterate over every edge and compare distances\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check over all these points\r\n\t\tfor ( let i = 0; i < 8; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tpoint2.copy( p ).clamp( min, max );\r\n\r\n\t\t\tconst dist = p.distanceToSquared( point2 );\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( p );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// generate and check all line segment distances\r\n\t\tlet count = 0;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\r\n\r\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\r\n\r\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\r\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\r\n\r\n\t\t\t\t\t// get obb line segments\r\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst p1 = points[ index ];\r\n\t\t\t\t\tconst p2 = points[ index2 ];\r\n\t\t\t\t\tconst line1 = segments1[ count ];\r\n\t\t\t\t\tline1.set( p1, p2 );\r\n\r\n\r\n\t\t\t\t\t// get aabb line segments\r\n\t\t\t\t\tconst f1 = xyzFields[ i ];\r\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\r\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\r\n\t\t\t\t\tconst line2 = segments2[ count ];\r\n\t\t\t\t\tconst start = line2.start;\r\n\t\t\t\t\tconst end = line2.end;\r\n\r\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\r\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\r\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tcount ++;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check all the other boxes point\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\r\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\r\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\r\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 12; i ++ ) {\r\n\r\n\t\t\tconst l1 = segments1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\r\n\r\n\t\t\t\tconst l2 = segments2[ i2 ];\r\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\r\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsRangeFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\r\n\r\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\r\n\r\n\t\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\nconst triangle = new SeparatingAxisTriangle();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit( nodeIndices = null, terminationIndices = null ) {\n\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\n\n\t\t\tnodeIndices = new Set( nodeIndices );\n\n\t\t}\n\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\n\n\t\t\tterminationIndices = new Set( terminationIndices );\n\n\t\t}\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\t\t\t_traverse( 0 );\n\n\t\t}\n\n\t\tfunction _traverse( node32Index, force = false ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\tlet leftChange = false;\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( left );\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );\n\t\t\t\tif ( traverseLeft ) {\n\n\t\t\t\t\tleftChange = _traverse( left, forceLeft );\n\n\t\t\t\t}\n\n\t\t\t\tlet rightChange = false;\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( right );\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );\n\t\t\t\tif ( traverseRight ) {\n\n\t\t\t\t\trightChange = _traverse( right, forceRight );\n\n\t\t\t\t}\n\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\t\t\tclearBuffer();\n\n\t\t}\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\n\n\t\tconst geometry = this.geometry;\n\t\tif ( callbacks instanceof Function ) {\n\n\t\t\tif ( _intersectsTriangleFunc ) {\n\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\n\t\t\t\t// indices here.\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\n\n\t\t\t\t\tconst i3 = index * 3;\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\n\n\t\t\t\t};\n\n\n\t\t\t}\n\n\t\t\tcallbacks = {\n\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\n\t\t\t\tintersectsBounds: callbacks,\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\n\t\t\t\tintersectsRange: null,\n\n\t\t\t};\n\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );\n\n\t\t}\n\n\t\tlet {\n\t\t\tboundsTraverseOrder,\n\t\t\tintersectsBounds,\n\t\t\tintersectsRange,\n\t\t\tintersectsTriangle,\n\t\t} = callbacks;\n\n\t\tif ( intersectsRange && intersectsTriangle ) {\n\n\t\t\tconst originalIntersectsRange = intersectsRange;\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\n\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t} else if ( ! intersectsRange ) {\n\n\t\t\tif ( intersectsTriangle ) {\n\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t};\n\n\t\t\t} else {\n\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\n\n\t\t\t\t\treturn contained;\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t}\n\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttri2.update();\n\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tconst minThresholdSq = minThreshold * minThreshold;\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\n\t\tlet closestDistanceSq = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\n\t\t\t\t\treturn temp.distanceToSquared( point );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\n\n\t\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistanceSq = distSq;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file
+{"version":3,"file":"index.module.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsRangeFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tnodeIndexByteOffset = 0, // offset for unique node identifier\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, nodeIndexByteOffset + c1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tnodeIndexByteOffset,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, nodeIndexByteOffset + c2 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tnodeIndexByteOffset,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\r\n\r\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\r\n\r\n\t\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\nconst triangle = new SeparatingAxisTriangle();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit( nodeIndices = null, terminationIndices = null ) {\n\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\n\n\t\t\tnodeIndices = new Set( nodeIndices );\n\n\t\t}\n\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\n\n\t\t\tterminationIndices = new Set( terminationIndices );\n\n\t\t}\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tlet byteOffset = 0;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\n\t\t\t_traverse( 0, byteOffset );\n\t\t\tbyteOffset += buffer.byteLength;\n\n\t\t}\n\n\t\tfunction _traverse( node32Index, byteOffset, force = false ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\t// the indentifying node indices provided by the shapecast function include offsets of all\n\t\t\t\t// root buffers to guarantee they're unique between roots so offset left and right indices here.\n\t\t\t\tconst offsetLeft = left + byteOffset;\n\t\t\t\tconst offsetRight = right + byteOffset;\n\n\t\t\t\tlet leftChange = false;\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( offsetLeft );\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( offsetLeft ) : true );\n\t\t\t\tif ( traverseLeft ) {\n\n\t\t\t\t\tleftChange = _traverse( left, byteOffset, forceLeft );\n\n\t\t\t\t}\n\n\t\t\t\tlet rightChange = false;\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( offsetRight );\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( offsetRight ) : true );\n\t\t\t\tif ( traverseRight ) {\n\n\t\t\t\t\trightChange = _traverse( right, byteOffset, forceRight );\n\n\t\t\t\t}\n\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\t\t\tclearBuffer();\n\n\t\t}\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\n\n\t\tconst geometry = this.geometry;\n\t\tif ( callbacks instanceof Function ) {\n\n\t\t\tif ( _intersectsTriangleFunc ) {\n\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\n\t\t\t\t// indices here.\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\n\n\t\t\t\t\tconst i3 = index * 3;\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\n\n\t\t\t\t};\n\n\n\t\t\t}\n\n\t\t\tcallbacks = {\n\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\n\t\t\t\tintersectsBounds: callbacks,\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\n\t\t\t\tintersectsRange: null,\n\n\t\t\t};\n\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.' );\n\n\t\t}\n\n\t\tlet {\n\t\t\tboundsTraverseOrder,\n\t\t\tintersectsBounds,\n\t\t\tintersectsRange,\n\t\t\tintersectsTriangle,\n\t\t} = callbacks;\n\n\t\tif ( intersectsRange && intersectsTriangle ) {\n\n\t\t\tconst originalIntersectsRange = intersectsRange;\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\n\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t} else if ( ! intersectsRange ) {\n\n\t\t\tif ( intersectsTriangle ) {\n\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t};\n\n\t\t\t} else {\n\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\n\n\t\t\t\t\treturn contained;\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t}\n\n\t\tlet result = false;\n\t\tlet byteOffset = 0;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder, byteOffset );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tbyteOffset += root.byteLength;\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttri2.update();\n\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tconst minThresholdSq = minThreshold * minThreshold;\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\n\t\tlet closestDistanceSq = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\n\t\t\t\t\treturn temp.distanceToSquared( point );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\n\n\t\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistanceSq = distSq;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file
diff --git a/build/index.umd.js b/build/index.umd.js
new file mode 100644
index 000000000..2e521ca60
--- /dev/null
+++ b/build/index.umd.js
@@ -0,0 +1,3675 @@
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('three')) :
+	typeof define === 'function' && define.amd ? define(['exports', 'three'], factory) :
+	(global = global || self, factory(global.MeshBVHLib = global.MeshBVHLib || {}, global.THREE));
+}(this, function (exports, three) { 'use strict';
+
+	// Split strategy constants
+	const CENTER = 0;
+	const AVERAGE = 1;
+	const SAH = 2;
+
+	const NOT_INTERSECTED = 0;
+	const INTERSECTED = 1;
+	const CONTAINED = 2;
+
+	class MeshBVHNode {
+
+		constructor() {
+
+			// internal nodes have boundingData, left, right, and splitAxis
+			// leaf nodes have offset and count (referring to primitives in the mesh geometry)
+
+		}
+
+	}
+
+	// Returns a Float32Array representing the bounds data for box.
+	function boxToArray( bx ) {
+
+		const arr = new Float32Array( 6 );
+
+		arr[ 0 ] = bx.min.x;
+		arr[ 1 ] = bx.min.y;
+		arr[ 2 ] = bx.min.z;
+
+		arr[ 3 ] = bx.max.x;
+		arr[ 4 ] = bx.max.y;
+		arr[ 5 ] = bx.max.z;
+
+		return arr;
+
+	}
+
+	function arrayToBox( arr, target ) {
+
+		target.min.x = arr[ 0 ];
+		target.min.y = arr[ 1 ];
+		target.min.z = arr[ 2 ];
+
+		target.max.x = arr[ 3 ];
+		target.max.y = arr[ 4 ];
+		target.max.z = arr[ 5 ];
+
+		return target;
+
+	}
+
+	function getLongestEdgeIndex( bounds ) {
+
+		let splitDimIdx = - 1;
+		let splitDist = - Infinity;
+
+		for ( let i = 0; i < 3; i ++ ) {
+
+			const dist = bounds[ i + 3 ] - bounds[ i ];
+			if ( dist > splitDist ) {
+
+				splitDist = dist;
+				splitDimIdx = i;
+
+			}
+
+		}
+
+		return splitDimIdx;
+
+	}
+
+	// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics
+	const FLOAT32_EPSILON = Math.pow( 2, - 24 );
+	const xyzFields = [ 'x', 'y', 'z' ];
+	const boxTemp = new three.Box3();
+
+	function ensureIndex( geo ) {
+
+		if ( ! geo.index ) {
+
+			const vertexCount = geo.attributes.position.count;
+			const index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );
+			geo.setIndex( new three.BufferAttribute( index, 1 ) );
+
+			for ( let i = 0; i < vertexCount; i ++ ) {
+
+				index[ i ] = i;
+
+			}
+
+		}
+
+	}
+
+	// Computes the set of { offset, count } ranges which need independent BVH roots. Each
+	// region in the geometry index that belongs to a different set of material groups requires
+	// a separate BVH root, so that triangles indices belonging to one group never get swapped
+	// with triangle indices belongs to another group. For example, if the groups were like this:
+	//
+	// [-------------------------------------------------------------]
+	// |__________________|
+	//   g0 = [0, 20]  |______________________||_____________________|
+	//                      g1 = [16, 40]           g2 = [41, 60]
+	//
+	// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].
+	function getRootIndexRanges( geo ) {
+
+		if ( ! geo.groups || ! geo.groups.length ) {
+
+			return [ { offset: 0, count: geo.index.count / 3 } ];
+
+		}
+
+		const ranges = [];
+		const rangeBoundaries = new Set();
+		for ( const group of geo.groups ) {
+
+			rangeBoundaries.add( group.start );
+			rangeBoundaries.add( group.start + group.count );
+
+		}
+
+		// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(
+		const sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );
+		for ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {
+
+			const start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];
+			ranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );
+
+		}
+
+		return ranges;
+
+	}
+
+	// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If
+	// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.
+	// These are computed together to avoid redundant accesses to bounds array.
+	function getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {
+
+		let minx = Infinity;
+		let miny = Infinity;
+		let minz = Infinity;
+		let maxx = - Infinity;
+		let maxy = - Infinity;
+		let maxz = - Infinity;
+
+		let cminx = Infinity;
+		let cminy = Infinity;
+		let cminz = Infinity;
+		let cmaxx = - Infinity;
+		let cmaxy = - Infinity;
+		let cmaxz = - Infinity;
+
+		const includeCentroid = centroidTarget !== null;
+		for ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {
+
+			const cx = triangleBounds[ i + 0 ];
+			const hx = triangleBounds[ i + 1 ];
+			const lx = cx - hx;
+			const rx = cx + hx;
+			if ( lx < minx ) minx = lx;
+			if ( rx > maxx ) maxx = rx;
+			if ( includeCentroid && cx < cminx ) cminx = cx;
+			if ( includeCentroid && cx > cmaxx ) cmaxx = cx;
+
+			const cy = triangleBounds[ i + 2 ];
+			const hy = triangleBounds[ i + 3 ];
+			const ly = cy - hy;
+			const ry = cy + hy;
+			if ( ly < miny ) miny = ly;
+			if ( ry > maxy ) maxy = ry;
+			if ( includeCentroid && cy < cminy ) cminy = cy;
+			if ( includeCentroid && cy > cmaxy ) cmaxy = cy;
+
+			const cz = triangleBounds[ i + 4 ];
+			const hz = triangleBounds[ i + 5 ];
+			const lz = cz - hz;
+			const rz = cz + hz;
+			if ( lz < minz ) minz = lz;
+			if ( rz > maxz ) maxz = rz;
+			if ( includeCentroid && cz < cminz ) cminz = cz;
+			if ( includeCentroid && cz > cmaxz ) cmaxz = cz;
+
+		}
+
+		target[ 0 ] = minx;
+		target[ 1 ] = miny;
+		target[ 2 ] = minz;
+
+		target[ 3 ] = maxx;
+		target[ 4 ] = maxy;
+		target[ 5 ] = maxz;
+
+		if ( includeCentroid ) {
+
+			centroidTarget[ 0 ] = cminx;
+			centroidTarget[ 1 ] = cminy;
+			centroidTarget[ 2 ] = cminz;
+
+			centroidTarget[ 3 ] = cmaxx;
+			centroidTarget[ 4 ] = cmaxy;
+			centroidTarget[ 5 ] = cmaxz;
+
+		}
+
+	}
+
+	// A stand alone function for retrieving the centroid bounds.
+	function getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {
+
+		let cminx = Infinity;
+		let cminy = Infinity;
+		let cminz = Infinity;
+		let cmaxx = - Infinity;
+		let cmaxy = - Infinity;
+		let cmaxz = - Infinity;
+
+		for ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {
+
+			const cx = triangleBounds[ i + 0 ];
+			if ( cx < cminx ) cminx = cx;
+			if ( cx > cmaxx ) cmaxx = cx;
+
+			const cy = triangleBounds[ i + 2 ];
+			if ( cy < cminy ) cminy = cy;
+			if ( cy > cmaxy ) cmaxy = cy;
+
+			const cz = triangleBounds[ i + 4 ];
+			if ( cz < cminz ) cminz = cz;
+			if ( cz > cmaxz ) cmaxz = cz;
+
+		}
+
+		centroidTarget[ 0 ] = cminx;
+		centroidTarget[ 1 ] = cminy;
+		centroidTarget[ 2 ] = cminz;
+
+		centroidTarget[ 3 ] = cmaxx;
+		centroidTarget[ 4 ] = cmaxy;
+		centroidTarget[ 5 ] = cmaxz;
+
+	}
+
+
+	// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split
+	// will be on the left and elements on the right side of the split will be on the right. returns the index
+	// of the first element on the right side, or offset + count if there are no elements on the right side.
+	function partition( index, triangleBounds, sahPlanes, offset, count, split ) {
+
+		let left = offset;
+		let right = offset + count - 1;
+		const pos = split.pos;
+		const axisOffset = split.axis * 2;
+
+		// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme
+		while ( true ) {
+
+			while ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {
+
+				left ++;
+
+			}
+
+			while ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {
+
+				right --;
+
+			}
+
+			if ( left < right ) {
+
+				// we need to swap all of the information associated with the triangles at index
+				// left and right; that's the verts in the geometry index, the bounds,
+				// and perhaps the SAH planes
+
+				for ( let i = 0; i < 3; i ++ ) {
+
+					let t0 = index[ left * 3 + i ];
+					index[ left * 3 + i ] = index[ right * 3 + i ];
+					index[ right * 3 + i ] = t0;
+
+					let t1 = triangleBounds[ left * 6 + i * 2 + 0 ];
+					triangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];
+					triangleBounds[ right * 6 + i * 2 + 0 ] = t1;
+
+					let t2 = triangleBounds[ left * 6 + i * 2 + 1 ];
+					triangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];
+					triangleBounds[ right * 6 + i * 2 + 1 ] = t2;
+
+				}
+
+				if ( sahPlanes ) {
+
+					for ( let i = 0; i < 3; i ++ ) {
+
+						let t = sahPlanes[ i ][ left ];
+						sahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];
+						sahPlanes[ i ][ right ] = t;
+
+					}
+
+				}
+
+				left ++;
+				right --;
+
+			} else {
+
+				return left;
+
+			}
+
+		}
+
+	}
+
+	function getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {
+
+		let axis = - 1;
+		let pos = 0;
+
+		// Center
+		if ( strategy === CENTER ) {
+
+			axis = getLongestEdgeIndex( centroidBoundingData );
+			if ( axis !== - 1 ) {
+
+				pos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;
+
+			}
+
+		} else if ( strategy === AVERAGE ) {
+
+			axis = getLongestEdgeIndex( nodeBoundingData );
+			if ( axis !== - 1 ) {
+
+				pos = getAverage( triangleBounds, offset, count, axis );
+
+			}
+
+		} else if ( strategy === SAH ) {
+
+			// Surface Area Heuristic
+			// In order to make this code more terse, the x, y, and z
+			// variables of various structures have been stuffed into
+			// 0, 1, and 2 array indices so they can be easily computed
+			// and accessed within array iteration
+
+			// Cost values defineed for operations. We're using bounds for traversal, so
+			// the cost of traversing one more layer is more than intersecting a triangle.
+			const TRAVERSAL_COST = 3;
+			const INTERSECTION_COST = 1;
+			const bb = arrayToBox( nodeBoundingData, boxTemp );
+
+			// Define the width, height, and depth of the bounds as a box
+			const dim = [
+				bb.max.x - bb.min.x,
+				bb.max.y - bb.min.y,
+				bb.max.z - bb.min.z
+			];
+			const sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );
+
+			// Get the precalculated planes based for the triangles we're
+			// testing here
+			const filteredLists = [[], [], []];
+			for ( let i = offset, end = offset + count; i < end; i ++ ) {
+
+				for ( let v = 0; v < 3; v ++ ) {
+
+					filteredLists[ v ].push( sahPlanes[ v ][ i ] );
+
+				}
+
+			}
+
+			filteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );
+
+			// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles
+			const getCost = ( sa, sal, nl, sar, nr ) =>
+				  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );
+
+			// the cost of _not_ splitting into smaller bounds
+			const noSplitCost = INTERSECTION_COST * count;
+
+			axis = - 1;
+			let bestCost = noSplitCost;
+			for ( let i = 0; i < 3; i ++ ) {
+
+				// o1 and o2 represent the _other_ two axes in the
+				// the space. So if we're checking the x (0) dimension,
+				// then o1 and o2 would be y and z (1 and 2)
+				const o1 = ( i + 1 ) % 3;
+				const o2 = ( i + 2 ) % 3;
+
+				const bmin = bb.min[ xyzFields[ i ] ];
+				const bmax = bb.max[ xyzFields[ i ] ];
+				const planes = filteredLists[ i ];
+
+				// The number of left and right triangles on either side
+				// given the current split
+				let nl = 0;
+				let nr = count;
+				for ( let p = 0; p < planes.length; p ++ ) {
+
+					const pinfo = planes[ p ];
+
+					// As the plane moves, we have to increment or decrement the
+					// number of triangles on either side of the plane
+					nl ++;
+					nr --;
+
+					// the distance from the plane to the edge of the broader bounds
+					const ldim = pinfo.p - bmin;
+					const rdim = bmax - pinfo.p;
+
+					// same for the other two dimensions
+					let ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];
+					let ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];
+
+					/*
+					// compute the other bounding planes for the box
+					// if only the current triangles are considered to
+					// be in the box
+					// This is really slow and probably not really worth it
+					const o1planes = sahPlanes[o1];
+					const o2planes = sahPlanes[o2];
+					let lmin = Infinity, lmax = -Infinity;
+					let rmin = Infinity, rmax = -Infinity;
+					planes.forEach((p, i) => {
+					const tri2 = p.tri * 2;
+					const inf1 = o1planes[tri2 + 0];
+					const inf2 = o1planes[tri2 + 1];
+					if (i <= nl) {
+					lmin = Math.min(inf1.p, inf2.p, lmin);
+					lmax = Math.max(inf1.p, inf2.p, lmax);
+					}
+					if (i >= nr) {
+					rmin = Math.min(inf1.p, inf2.p, rmin);
+					rmax = Math.max(inf1.p, inf2.p, rmax);
+					}
+					})
+					ldimo1 = Math.min(lmax - lmin, ldimo1);
+					rdimo1 = Math.min(rmax - rmin, rdimo1);
+
+					planes.forEach((p, i) => {
+					const tri2 = p.tri * 2;
+					const inf1 = o2planes[tri2 + 0];
+					const inf2 = o2planes[tri2 + 1];
+					if (i <= nl) {
+					lmin = Math.min(inf1.p, inf2.p, lmin);
+					lmax = Math.max(inf1.p, inf2.p, lmax);
+					}
+					if (i >= nr) {
+					rmin = Math.min(inf1.p, inf2.p, rmin);
+					rmax = Math.max(inf1.p, inf2.p, rmax);
+					}
+					})
+					ldimo2 = Math.min(lmax - lmin, ldimo2);
+					rdimo2 = Math.min(rmax - rmin, rdimo2);
+					*/
+
+					// surface areas and cost
+					const sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );
+					const sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );
+					const cost = getCost( sa, sal, nl, sar, nr );
+
+					if ( cost < bestCost ) {
+
+						axis = i;
+						pos = pinfo.p;
+						bestCost = cost;
+
+					}
+
+				}
+
+			}
+
+		}
+
+		return { axis, pos };
+
+	}
+
+	// returns the average coordinate on the specified axis of the all the provided triangles
+	function getAverage( triangleBounds, offset, count, axis ) {
+
+		let avg = 0;
+		for ( let i = offset, end = offset + count; i < end; i ++ ) {
+
+			avg += triangleBounds[ i * 6 + axis * 2 ];
+
+		}
+
+		return avg / count;
+
+	}
+
+	function computeSAHPlanes( triangleBounds ) {
+
+		const triCount = triangleBounds.length / 6;
+		const sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];
+		for ( let tri = 0; tri < triCount; tri ++ ) {
+
+			for ( let el = 0; el < 3; el ++ ) {
+
+				sahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };
+
+			}
+
+		}
+
+		return sahPlanes;
+
+	}
+
+	// precomputes the bounding box for each triangle; required for quickly calculating tree splits.
+	// result is an array of size tris.length * 6 where triangle i maps to a
+	// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,
+	// representing the center and half-extent in each dimension of triangle i
+	function computeTriangleBounds( geo ) {
+
+		const verts = geo.attributes.position.array;
+		const index = geo.index.array;
+		const triCount = index.length / 3;
+		const triangleBounds = new Float32Array( triCount * 6 );
+
+		for ( let tri = 0; tri < triCount; tri ++ ) {
+
+			const tri3 = tri * 3;
+			const tri6 = tri * 6;
+			const ai = index[ tri3 + 0 ] * 3;
+			const bi = index[ tri3 + 1 ] * 3;
+			const ci = index[ tri3 + 2 ] * 3;
+
+			for ( let el = 0; el < 3; el ++ ) {
+
+				const a = verts[ ai + el ];
+				const b = verts[ bi + el ];
+				const c = verts[ ci + el ];
+
+				let min = a;
+				if ( b < min ) min = b;
+				if ( c < min ) min = c;
+
+				let max = a;
+				if ( b > max ) max = b;
+				if ( c > max ) max = c;
+
+				// Increase the bounds size by float32 epsilon to avoid precision errors when
+				// converting to 32 bit float. Scale the epsilon by the size of the numbers being
+				// worked with.
+				const halfExtents = ( max - min ) / 2;
+				const el2 = el * 2;
+				triangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;
+				triangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;
+
+			}
+
+		}
+
+		return triangleBounds;
+
+	}
+
+	function buildTree( geo, options ) {
+
+		// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,
+		// recording the offset and count of its triangles and writing them into the reordered geometry index.
+		function splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {
+
+			if ( ! reachedMaxDepth && depth >= maxDepth ) {
+
+				reachedMaxDepth = true;
+				if ( verbose ) {
+
+					console.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );
+					console.warn( this, geo );
+
+				}
+
+			}
+
+			// early out if we've met our capacity
+			if ( count <= maxLeafTris || depth >= maxDepth ) {
+
+				node.offset = offset;
+				node.count = count;
+				return node;
+
+			}
+
+			// Find where to split the volume
+			const split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );
+			if ( split.axis === - 1 ) {
+
+				node.offset = offset;
+				node.count = count;
+				return node;
+
+			}
+
+			const splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );
+
+			// create the two new child nodes
+			if ( splitOffset === offset || splitOffset === offset + count ) {
+
+				node.offset = offset;
+				node.count = count;
+
+			} else {
+
+				node.splitAxis = split.axis;
+
+				// create the left child and compute its bounding box
+				const left = new MeshBVHNode();
+				const lstart = offset;
+				const lcount = splitOffset - offset;
+				node.left = left;
+				left.boundingData = new Float32Array( 6 );
+
+				getBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );
+				splitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );
+
+				// repeat for right
+				const right = new MeshBVHNode();
+				const rstart = splitOffset;
+				const rcount = count - lcount;
+				node.right = right;
+				right.boundingData = new Float32Array( 6 );
+
+				getBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );
+				splitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );
+
+			}
+
+			return node;
+
+		}
+
+		ensureIndex( geo );
+
+		const cacheCentroidBoundingData = new Float32Array( 6 );
+		const triangleBounds = computeTriangleBounds( geo );
+		const sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;
+		const indexArray = geo.index.array;
+		const maxDepth = options.maxDepth;
+		const verbose = options.verbose;
+		const maxLeafTris = options.maxLeafTris;
+		const strategy = options.strategy;
+		let reachedMaxDepth = false;
+
+		const roots = [];
+		const ranges = getRootIndexRanges( geo );
+
+		if ( ranges.length === 1 ) {
+
+			const root = new MeshBVHNode();
+			const range = ranges[ 0 ];
+
+			if ( geo.boundingBox != null ) {
+
+				root.boundingData = boxToArray( geo.boundingBox );
+				getCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );
+
+			} else {
+
+				root.boundingData = new Float32Array( 6 );
+				getBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );
+
+			}
+
+			splitNode( root, range.offset, range.count, cacheCentroidBoundingData );
+			roots.push( root );
+
+		} else {
+
+			for ( let range of ranges ) {
+
+				const root = new MeshBVHNode();
+				root.boundingData = new Float32Array( 6 );
+				getBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );
+
+				splitNode( root, range.offset, range.count, cacheCentroidBoundingData );
+				roots.push( root );
+
+			}
+
+		}
+
+		return roots;
+
+	}
+
+	const BYTES_PER_NODE = 6 * 4 + 4 + 4;
+
+	const IS_LEAFNODE_FLAG = 0xFFFF;
+
+	function buildPackedTree( geo, options ) {
+
+		// boundingData  				: 6 float32
+		// right / offset 				: 1 uint32
+		// splitAxis / isLeaf + count 	: 1 uint32 / 2 uint16
+		const roots = buildTree( geo, options );
+
+		let float32Array;
+		let uint32Array;
+		let uint16Array;
+		const packedRoots = [];
+		for ( let i = 0; i < roots.length; i ++ ) {
+
+			const root = roots[ i ];
+			let nodeCount = countNodes( root );
+
+			const buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );
+			float32Array = new Float32Array( buffer );
+			uint32Array = new Uint32Array( buffer );
+			uint16Array = new Uint16Array( buffer );
+			populateBuffer( 0, root );
+			packedRoots.push( buffer );
+
+		}
+
+		return packedRoots;
+
+		function countNodes( node ) {
+
+			if ( node.count ) {
+
+				return 1;
+
+			} else {
+
+				return 1 + countNodes( node.left ) + countNodes( node.right );
+
+			}
+
+		}
+
+		function populateBuffer( byteOffset, node ) {
+
+			const stride4Offset = byteOffset / 4;
+			const stride2Offset = byteOffset / 2;
+			const isLeaf = ! ! node.count;
+			const boundingData = node.boundingData;
+			for ( let i = 0; i < 6; i ++ ) {
+
+				float32Array[ stride4Offset + i ] = boundingData[ i ];
+
+			}
+
+			if ( isLeaf ) {
+
+				const offset = node.offset;
+				const count = node.count;
+				uint32Array[ stride4Offset + 6 ] = offset;
+				uint16Array[ stride2Offset + 14 ] = count;
+				uint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;
+				return byteOffset + BYTES_PER_NODE;
+
+			} else {
+
+				const left = node.left;
+				const right = node.right;
+				const splitAxis = node.splitAxis;
+
+				let nextUnusedPointer;
+				nextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );
+
+				if ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {
+
+					throw new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );
+
+				}
+
+				uint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;
+				nextUnusedPointer = populateBuffer( nextUnusedPointer, right );
+
+				uint32Array[ stride4Offset + 7 ] = splitAxis;
+				return nextUnusedPointer;
+
+			}
+
+		}
+
+	}
+
+	class SeparatingAxisBounds {
+
+		constructor() {
+
+			this.min = Infinity;
+			this.max = - Infinity;
+
+		}
+
+		setFromPointsField( points, field ) {
+
+			let min = Infinity;
+			let max = - Infinity;
+			for ( let i = 0, l = points.length; i < l; i ++ ) {
+
+				const p = points[ i ];
+				const val = p[ field ];
+				min = Math.min( val, min );
+				max = Math.max( val, max );
+
+			}
+
+			this.min = min;
+			this.max = max;
+
+
+		}
+
+		setFromPoints( axis, points ) {
+
+			let min = Infinity;
+			let max = - Infinity;
+			for ( let i = 0, l = points.length; i < l; i ++ ) {
+
+				const p = points[ i ];
+				const val = axis.dot( p );
+				min = Math.min( val, min );
+				max = Math.max( val, max );
+
+			}
+
+			this.min = min;
+			this.max = max;
+
+		}
+
+		isSeparated( other ) {
+
+			return this.min > other.max || other.min > this.max;
+
+		}
+
+	}
+
+	SeparatingAxisBounds.prototype.setFromBox = ( function () {
+
+		const p = new three.Vector3();
+		return function setFromBox( axis, box ) {
+
+			const boxMin = box.min;
+			const boxMax = box.max;
+			let min = Infinity;
+			let max = - Infinity;
+			for ( let x = 0; x <= 1; x ++ ) {
+
+				for ( let y = 0; y <= 1; y ++ ) {
+
+					for ( let z = 0; z <= 1; z ++ ) {
+
+						p.x = boxMin.x * x + boxMax.x * ( 1 - x );
+						p.y = boxMin.y * y + boxMax.y * ( 1 - y );
+						p.z = boxMin.z * z + boxMax.z * ( 1 - z );
+
+						const val = axis.dot( p );
+						min = Math.min( val, min );
+						max = Math.max( val, max );
+
+					}
+
+				}
+
+			}
+
+			this.min = min;
+			this.max = max;
+
+		};
+
+	} )();
+
+	const areIntersecting = ( function () {
+
+		const cacheSatBounds = new SeparatingAxisBounds();
+		return function areIntersecting( shape1, shape2 ) {
+
+			const points1 = shape1.points;
+			const satAxes1 = shape1.satAxes;
+			const satBounds1 = shape1.satBounds;
+
+			const points2 = shape2.points;
+			const satAxes2 = shape2.satAxes;
+			const satBounds2 = shape2.satBounds;
+
+			// check axes of the first shape
+			for ( let i = 0; i < 3; i ++ ) {
+
+				const sb = satBounds1[ i ];
+				const sa = satAxes1[ i ];
+				cacheSatBounds.setFromPoints( sa, points2 );
+				if ( sb.isSeparated( cacheSatBounds ) ) return false;
+
+			}
+
+			// check axes of the second shape
+			for ( let i = 0; i < 3; i ++ ) {
+
+				const sb = satBounds2[ i ];
+				const sa = satAxes2[ i ];
+				cacheSatBounds.setFromPoints( sa, points1 );
+				if ( sb.isSeparated( cacheSatBounds ) ) return false;
+
+			}
+
+		};
+
+	} )();
+
+	const closestPointLineToLine = ( function () {
+
+		// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56
+		const dir1 = new three.Vector3();
+		const dir2 = new three.Vector3();
+		const v02 = new three.Vector3();
+		return function closestPointLineToLine( l1, l2, result ) {
+
+			const v0 = l1.start;
+			const v10 = dir1;
+			const v2 = l2.start;
+			const v32 = dir2;
+
+			v02.subVectors( v0, v2 );
+			dir1.subVectors( l1.end, l2.start );
+			dir2.subVectors( l2.end, l2.start );
+
+			// float d0232 = v02.Dot(v32);
+			const d0232 = v02.dot( v32 );
+
+			// float d3210 = v32.Dot(v10);
+			const d3210 = v32.dot( v10 );
+
+			// float d3232 = v32.Dot(v32);
+			const d3232 = v32.dot( v32 );
+
+			// float d0210 = v02.Dot(v10);
+			const d0210 = v02.dot( v10 );
+
+			// float d1010 = v10.Dot(v10);
+			const d1010 = v10.dot( v10 );
+
+			// float denom = d1010*d3232 - d3210*d3210;
+			const denom = d1010 * d3232 - d3210 * d3210;
+
+			let d, d2;
+			if ( denom !== 0 ) {
+
+				d = ( d0232 * d3210 - d0210 * d3232 ) / denom;
+
+			} else {
+
+				d = 0;
+
+			}
+
+			d2 = ( d0232 + d * d3210 ) / d3232;
+
+			result.x = d;
+			result.y = d2;
+
+		};
+
+	} )();
+
+	const closestPointsSegmentToSegment = ( function () {
+
+		// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187
+		const paramResult = new three.Vector2();
+		const temp1 = new three.Vector3();
+		const temp2 = new three.Vector3();
+		return function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {
+
+			closestPointLineToLine( l1, l2, paramResult );
+
+			let d = paramResult.x;
+			let d2 = paramResult.y;
+			if ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {
+
+				l1.at( d, target1 );
+				l2.at( d2, target2 );
+
+				return;
+
+			} else if ( d >= 0 && d <= 1 ) {
+
+				// Only d2 is out of bounds.
+				if ( d2 < 0 ) {
+
+					l2.at( 0, target2 );
+
+				} else {
+
+					l2.at( 1, target2 );
+
+				}
+
+				l1.closestPointToPoint( target2, true, target1 );
+				return;
+
+			} else if ( d2 >= 0 && d2 <= 1 ) {
+
+				// Only d is out of bounds.
+				if ( d < 0 ) {
+
+					l1.at( 0, target1 );
+
+				} else {
+
+					l1.at( 1, target1 );
+
+				}
+
+				l2.closestPointToPoint( target1, true, target2 );
+				return;
+
+			} else {
+
+				// Both u and u2 are out of bounds.
+				let p;
+				if ( d < 0 ) {
+
+					p = l1.start;
+
+				} else {
+
+					p = l1.end;
+
+				}
+
+				let p2;
+				if ( d2 < 0 ) {
+
+					p2 = l2.start;
+
+				} else {
+
+					p2 = l2.end;
+
+				}
+
+				const closestPoint = temp1;
+				const closestPoint2 = temp2;
+				l1.closestPointToPoint( p2, true, temp1 );
+				l2.closestPointToPoint( p, true, temp2 );
+
+				if ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {
+
+					target1.copy( closestPoint );
+					target2.copy( p2 );
+					return;
+
+				} else {
+
+					target1.copy( p );
+					target2.copy( closestPoint2 );
+					return;
+
+				}
+
+			}
+
+		};
+
+	} )();
+
+
+	const sphereIntersectTriangle = ( function () {
+
+		// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js
+		const closestPointTemp = new three.Vector3();
+		const projectedPointTemp = new three.Vector3();
+		const planeTemp = new three.Plane();
+		const lineTemp = new three.Line3();
+		return function sphereIntersectTriangle( sphere, triangle ) {
+
+			const { radius, center } = sphere;
+			const { a, b, c } = triangle;
+
+			// phase 1
+			lineTemp.start = a;
+			lineTemp.end = b;
+			const closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );
+			if ( closestPoint1.distanceTo( center ) <= radius ) return true;
+
+			lineTemp.start = a;
+			lineTemp.end = c;
+			const closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );
+			if ( closestPoint2.distanceTo( center ) <= radius ) return true;
+
+			lineTemp.start = b;
+			lineTemp.end = c;
+			const closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );
+			if ( closestPoint3.distanceTo( center ) <= radius ) return true;
+
+			// phase 2
+			const plane = triangle.getPlane( planeTemp );
+			const dp = Math.abs( plane.distanceToPoint( center ) );
+			if ( dp <= radius ) {
+
+				const pp = plane.projectPoint( center, projectedPointTemp );
+				const cp = triangle.containsPoint( pp );
+				if ( cp ) return true;
+
+			}
+
+			return false;
+
+		};
+
+	} )();
+
+	class SeparatingAxisTriangle extends three.Triangle {
+
+		constructor( ...args ) {
+
+			super( ...args );
+
+			this.isSeparatingAxisTriangle = true;
+			this.satAxes = new Array( 4 ).fill().map( () => new three.Vector3() );
+			this.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );
+			this.points = [ this.a, this.b, this.c ];
+			this.sphere = new three.Sphere();
+			this.needsUpdate = false;
+
+		}
+
+		intersectsSphere( sphere ) {
+
+			return sphereIntersectTriangle( sphere, this );
+
+		}
+
+	}
+
+	SeparatingAxisTriangle.prototype.update = ( function () {
+
+		const arr = new Array( 3 );
+		return function update() {
+
+			const a = this.a;
+			const b = this.b;
+			const c = this.c;
+
+			arr[ 0 ] = this.a;
+			arr[ 1 ] = this.b;
+			arr[ 2 ] = this.c;
+
+			const satAxes = this.satAxes;
+			const satBounds = this.satBounds;
+
+			const axis0 = satAxes[ 0 ];
+			const sab0 = satBounds[ 0 ];
+			this.getNormal( axis0 );
+			sab0.setFromPoints( axis0, arr );
+
+			const axis1 = satAxes[ 1 ];
+			const sab1 = satBounds[ 1 ];
+			axis1.subVectors( a, b );
+			sab1.setFromPoints( axis1, arr );
+
+			const axis2 = satAxes[ 2 ];
+			const sab2 = satBounds[ 2 ];
+			axis2.subVectors( b, c );
+			sab2.setFromPoints( axis2, arr );
+
+			const axis3 = satAxes[ 3 ];
+			const sab3 = satBounds[ 3 ];
+			axis3.subVectors( c, a );
+			sab3.setFromPoints( axis3, arr );
+
+			this.sphere.setFromPoints( this.points );
+			this.needsUpdate = false;
+
+		};
+
+	} )();
+
+	SeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {
+
+		const point1 = new three.Vector3();
+		const point2 = new three.Vector3();
+		const edge = new three.Line3();
+
+		return function distanceToSegment( segment, target1 = null, target2 = null ) {
+
+			if ( this.needsUpdate ) {
+
+				this.update();
+
+			}
+
+			const { start, end } = segment;
+			const points = this.points;
+			let distSq;
+			let closestDistanceSq = Infinity;
+
+			// check the triangle edges
+			for ( let i = 0; i < 3; i ++ ) {
+
+				const nexti = ( i + 1 ) % 3;
+				edge.start.copy( points[ i ] );
+				edge.end.copy( points[ nexti ] );
+
+				closestPointsSegmentToSegment( edge, segment, point1, point2 );
+
+				distSq = point1.distanceToSquared( point2 );
+				if ( distSq < closestDistanceSq ) {
+
+					closestDistanceSq = distSq;
+					if ( target1 ) target1.copy( point1 );
+					if ( target2 ) target2.copy( point2 );
+
+				}
+
+			}
+
+			// check end points
+			this.closestPointToPoint( start, point1 );
+			distSq = start.distanceToSquared( point1 );
+			if ( distSq < closestDistanceSq ) {
+
+				closestDistanceSq = distSq;
+				if ( target1 ) target1.copy( point1 );
+				if ( target2 ) target2.copy( start );
+
+			}
+
+			this.closestPointToPoint( end, point1 );
+			distSq = end.distanceToSquared( point1 );
+			if ( distSq < closestDistanceSq ) {
+
+				closestDistanceSq = distSq;
+				if ( target1 ) target1.copy( point1 );
+				if ( target2 ) target2.copy( end );
+
+			}
+
+			return Math.sqrt( closestDistanceSq );
+
+		};
+
+	} )();
+
+	SeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {
+
+		const saTri2 = new SeparatingAxisTriangle();
+		const arr1 = new Array( 3 );
+		const arr2 = new Array( 3 );
+		const cachedSatBounds = new SeparatingAxisBounds();
+		const cachedSatBounds2 = new SeparatingAxisBounds();
+		const cachedAxis = new three.Vector3();
+		return function intersectsTriangle( other ) {
+
+			if ( this.needsUpdate ) {
+
+				this.update();
+
+			}
+
+			if ( ! other.isSeparatingAxisTriangle ) {
+
+				saTri2.copy( other );
+				saTri2.update();
+				other = saTri2;
+
+			}
+
+			const satBounds1 = this.satBounds;
+			const satAxes1 = this.satAxes;
+			arr2[ 0 ] = other.a;
+			arr2[ 1 ] = other.b;
+			arr2[ 2 ] = other.c;
+			for ( let i = 0; i < 4; i ++ ) {
+
+				const sb = satBounds1[ i ];
+				const sa = satAxes1[ i ];
+				cachedSatBounds.setFromPoints( sa, arr2 );
+				if ( sb.isSeparated( cachedSatBounds ) ) return false;
+
+			}
+
+			const satBounds2 = other.satBounds;
+			const satAxes2 = other.satAxes;
+			arr1[ 0 ] = this.a;
+			arr1[ 1 ] = this.b;
+			arr1[ 2 ] = this.c;
+			for ( let i = 0; i < 4; i ++ ) {
+
+				const sb = satBounds2[ i ];
+				const sa = satAxes2[ i ];
+				cachedSatBounds.setFromPoints( sa, arr1 );
+				if ( sb.isSeparated( cachedSatBounds ) ) return false;
+
+			}
+
+			// check crossed axes
+			for ( let i = 0; i < 4; i ++ ) {
+
+				const sa1 = satAxes1[ i ];
+				for ( let i2 = 0; i2 < 4; i2 ++ ) {
+
+					const sa2 = satAxes2[ i2 ];
+					cachedAxis.crossVectors( sa1, sa2 );
+					cachedSatBounds.setFromPoints( cachedAxis, arr1 );
+					cachedSatBounds2.setFromPoints( cachedAxis, arr2 );
+					if ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;
+
+				}
+
+			}
+
+			return true;
+
+		};
+
+	} )();
+
+
+	SeparatingAxisTriangle.prototype.distanceToPoint = ( function () {
+
+		const target = new three.Vector3();
+		return function distanceToPoint( point ) {
+
+			this.closestPointToPoint( point, target );
+			return point.distanceTo( target );
+
+		};
+
+	} )();
+
+
+	SeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {
+
+		const point = new three.Vector3();
+		const point2 = new three.Vector3();
+		const cornerFields = [ 'a', 'b', 'c' ];
+		const line1 = new three.Line3();
+		const line2 = new three.Line3();
+
+		return function distanceToTriangle( other, target1 = null, target2 = null ) {
+
+			if ( other.needsUpdate ) {
+
+				other.update();
+
+			}
+
+			if ( this.needsUpdate ) {
+
+				this.update();
+
+			}
+
+			if ( this.intersectsTriangle( other ) ) {
+
+				// TODO: This will not result in a point that lies on
+				// the intersection line of the triangles
+				if ( target1 || target2 ) {
+
+					this.getMidpoint( point );
+					other.closestPointToPoint( point, point2 );
+					this.closestPointToPoint( point2, point );
+
+					if ( target1 ) target1.copy( point );
+					if ( target2 ) target2.copy( point2 );
+
+				}
+
+				return 0;
+
+			}
+
+			let closestDistanceSq = Infinity;
+
+			// check all point distances
+			for ( let i = 0; i < 3; i ++ ) {
+
+				let dist;
+				const field = cornerFields[ i ];
+				const otherVec = other[ field ];
+				this.closestPointToPoint( otherVec, point );
+
+				dist = otherVec.distanceToSquared( point );
+
+				if ( dist < closestDistanceSq ) {
+
+					closestDistanceSq = dist;
+					if ( target1 ) target1.copy( point );
+					if ( target2 ) target2.copy( otherVec );
+
+				}
+
+
+				const thisVec = this[ field ];
+				other.closestPointToPoint( thisVec, point );
+
+				dist = thisVec.distanceToSquared( point );
+
+				if ( dist < closestDistanceSq ) {
+
+					closestDistanceSq = dist;
+					if ( target1 ) target1.copy( thisVec );
+					if ( target2 ) target2.copy( point );
+
+				}
+
+			}
+
+			for ( let i = 0; i < 3; i ++ ) {
+
+				const f11 = cornerFields[ i ];
+				const f12 = cornerFields[ ( i + 1 ) % 3 ];
+				line1.set( this[ f11 ], this[ f12 ] );
+				for ( let i2 = 0; i2 < 3; i2 ++ ) {
+
+					const f21 = cornerFields[ i2 ];
+					const f22 = cornerFields[ ( i2 + 1 ) % 3 ];
+					line2.set( other[ f21 ], other[ f22 ] );
+
+					closestPointsSegmentToSegment( line1, line2, point, point2 );
+
+					const dist = point.distanceToSquared( point2 );
+					if ( dist < closestDistanceSq ) {
+
+						closestDistanceSq = dist;
+						if ( target1 ) target1.copy( point );
+						if ( target2 ) target2.copy( point2 );
+
+					}
+
+				}
+
+			}
+
+			return Math.sqrt( closestDistanceSq );
+
+		};
+
+	} )();
+
+	class OrientedBox extends three.Box3 {
+
+		constructor( ...args ) {
+
+			super( ...args );
+
+			this.isOrientedBox = true;
+			this.matrix = new three.Matrix4();
+			this.invMatrix = new three.Matrix4();
+			this.points = new Array( 8 ).fill().map( () => new three.Vector3() );
+			this.satAxes = new Array( 3 ).fill().map( () => new three.Vector3() );
+			this.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );
+			this.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );
+			this.sphere = new three.Sphere();
+
+		}
+
+		set( min, max, matrix ) {
+
+			super.set( min, max );
+			this.matrix = matrix;
+
+		}
+
+		copy( other ) {
+
+			super.copy( other );
+			this.matrix.copy( other.matrix );
+
+		}
+
+	}
+
+	OrientedBox.prototype.update = ( function () {
+
+		return function update() {
+
+			const matrix = this.matrix;
+			const min = this.min;
+			const max = this.max;
+
+			const points = this.points;
+			for ( let x = 0; x <= 1; x ++ ) {
+
+				for ( let y = 0; y <= 1; y ++ ) {
+
+					for ( let z = 0; z <= 1; z ++ ) {
+
+						const i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );
+						const v = points[ i ];
+						v.x = x ? max.x : min.x;
+						v.y = y ? max.y : min.y;
+						v.z = z ? max.z : min.z;
+
+						v.applyMatrix4( matrix );
+
+					}
+
+				}
+
+			}
+
+			this.sphere.setFromPoints( this.points );
+
+			const satBounds = this.satBounds;
+			const satAxes = this.satAxes;
+			const minVec = points[ 0 ];
+			for ( let i = 0; i < 3; i ++ ) {
+
+				const axis = satAxes[ i ];
+				const sb = satBounds[ i ];
+				const index = 1 << i;
+				const pi = points[ index ];
+
+				axis.subVectors( minVec, pi );
+				sb.setFromPoints( axis, points );
+
+			}
+
+			const alignedSatBounds = this.alignedSatBounds;
+			alignedSatBounds[ 0 ].setFromPointsField( points, 'x' );
+			alignedSatBounds[ 1 ].setFromPointsField( points, 'y' );
+			alignedSatBounds[ 2 ].setFromPointsField( points, 'z' );
+
+			this.invMatrix.copy( this.matrix ).invert();
+
+		};
+
+	} )();
+
+	OrientedBox.prototype.intersectsBox = ( function () {
+
+		const aabbBounds = new SeparatingAxisBounds();
+		return function intersectsBox( box ) {
+
+			if ( ! box.intersectsSphere( this.sphere ) ) return false;
+
+			const min = box.min;
+			const max = box.max;
+			const satBounds = this.satBounds;
+			const satAxes = this.satAxes;
+			const alignedSatBounds = this.alignedSatBounds;
+
+			aabbBounds.min = min.x;
+			aabbBounds.max = max.x;
+			if ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;
+
+			aabbBounds.min = min.y;
+			aabbBounds.max = max.y;
+			if ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;
+
+			aabbBounds.min = min.z;
+			aabbBounds.max = max.z;
+			if ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;
+
+			for ( let i = 0; i < 3; i ++ ) {
+
+				const axis = satAxes[ i ];
+				const sb = satBounds[ i ];
+				aabbBounds.setFromBox( axis, box );
+				if ( sb.isSeparated( aabbBounds ) ) return false;
+
+			}
+
+			return true;
+
+		};
+
+	} )();
+
+	OrientedBox.prototype.intersectsTriangle = ( function () {
+
+		const saTri = new SeparatingAxisTriangle();
+		const pointsArr = new Array( 3 );
+		const cachedSatBounds = new SeparatingAxisBounds();
+		const cachedSatBounds2 = new SeparatingAxisBounds();
+		const cachedAxis = new three.Vector3();
+		return function intersectsTriangle( triangle ) {
+
+			if ( ! triangle.isSeparatingAxisTriangle ) {
+
+				saTri.copy( triangle );
+				saTri.update();
+				triangle = saTri;
+
+			} else if ( triangle.needsUpdate ) {
+
+				triangle.update();
+
+			}
+
+			const satBounds = this.satBounds;
+			const satAxes = this.satAxes;
+
+			pointsArr[ 0 ] = triangle.a;
+			pointsArr[ 1 ] = triangle.b;
+			pointsArr[ 2 ] = triangle.c;
+
+			for ( let i = 0; i < 3; i ++ ) {
+
+				const sb = satBounds[ i ];
+				const sa = satAxes[ i ];
+				cachedSatBounds.setFromPoints( sa, pointsArr );
+				if ( sb.isSeparated( cachedSatBounds ) ) return false;
+
+			}
+
+			const triSatBounds = triangle.satBounds;
+			const triSatAxes = triangle.satAxes;
+			const points = this.points;
+			for ( let i = 0; i < 3; i ++ ) {
+
+				const sb = triSatBounds[ i ];
+				const sa = triSatAxes[ i ];
+				cachedSatBounds.setFromPoints( sa, points );
+				if ( sb.isSeparated( cachedSatBounds ) ) return false;
+
+			}
+
+			// check crossed axes
+			for ( let i = 0; i < 3; i ++ ) {
+
+				const sa1 = satAxes[ i ];
+				for ( let i2 = 0; i2 < 4; i2 ++ ) {
+
+					const sa2 = triSatAxes[ i2 ];
+					cachedAxis.crossVectors( sa1, sa2 );
+					cachedSatBounds.setFromPoints( cachedAxis, pointsArr );
+					cachedSatBounds2.setFromPoints( cachedAxis, points );
+					if ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;
+
+				}
+
+			}
+
+			return true;
+
+		};
+
+	} )();
+
+	OrientedBox.prototype.closestPointToPoint = ( function () {
+
+		return function closestPointToPoint( point, target1 ) {
+
+			target1
+				.copy( point )
+				.applyMatrix4( this.invMatrix )
+				.clamp( this.min, this.max )
+				.applyMatrix4( this.matrix );
+
+			return target1;
+
+		};
+
+	} )();
+
+	OrientedBox.prototype.distanceToPoint = ( function () {
+
+		const target = new three.Vector3();
+		return function distanceToPoint( point ) {
+
+			this.closestPointToPoint( point, target );
+			return point.distanceTo( target );
+
+		};
+
+	} )();
+
+
+	OrientedBox.prototype.distanceToBox = ( function () {
+
+		const xyzFields = [ 'x', 'y', 'z' ];
+		const segments1 = new Array( 12 ).fill().map( () => new three.Line3() );
+		const segments2 = new Array( 12 ).fill().map( () => new three.Line3() );
+
+		const point1 = new three.Vector3();
+		const point2 = new three.Vector3();
+
+		return function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {
+
+			if ( this.intersectsBox( box ) ) {
+
+				if ( target1 || target2 ) {
+
+					box.getCenter( point2 );
+					this.closestPointToPoint( point2, point1 );
+					box.closestPointToPoint( point1, point2 );
+
+					if ( target1 ) target1.copy( point1 );
+					if ( target2 ) target2.copy( point2 );
+
+				}
+				return 0;
+
+			}
+
+			const threshold2 = threshold * threshold;
+			const min = box.min;
+			const max = box.max;
+			const points = this.points;
+
+
+			// iterate over every edge and compare distances
+			let closestDistanceSq = Infinity;
+
+			// check over all these points
+			for ( let i = 0; i < 8; i ++ ) {
+
+				const p = points[ i ];
+				point2.copy( p ).clamp( min, max );
+
+				const dist = p.distanceToSquared( point2 );
+				if ( dist < closestDistanceSq ) {
+
+					closestDistanceSq = dist;
+					if ( target1 ) target1.copy( p );
+					if ( target2 ) target2.copy( point2 );
+
+					if ( dist < threshold2 ) return Math.sqrt( dist );
+
+				}
+
+			}
+
+			// generate and check all line segment distances
+			let count = 0;
+			for ( let i = 0; i < 3; i ++ ) {
+
+				for ( let i1 = 0; i1 <= 1; i1 ++ ) {
+
+					for ( let i2 = 0; i2 <= 1; i2 ++ ) {
+
+						const nextIndex = ( i + 1 ) % 3;
+						const nextIndex2 = ( i + 2 ) % 3;
+
+						// get obb line segments
+						const index = i1 << nextIndex | i2 << nextIndex2;
+						const index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;
+						const p1 = points[ index ];
+						const p2 = points[ index2 ];
+						const line1 = segments1[ count ];
+						line1.set( p1, p2 );
+
+
+						// get aabb line segments
+						const f1 = xyzFields[ i ];
+						const f2 = xyzFields[ nextIndex ];
+						const f3 = xyzFields[ nextIndex2 ];
+						const line2 = segments2[ count ];
+						const start = line2.start;
+						const end = line2.end;
+
+						start[ f1 ] = min[ f1 ];
+						start[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];
+						start[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];
+
+						end[ f1 ] = max[ f1 ];
+						end[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];
+						end[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];
+
+						count ++;
+
+					}
+
+				}
+
+			}
+
+			// check all the other boxes point
+			for ( let x = 0; x <= 1; x ++ ) {
+
+				for ( let y = 0; y <= 1; y ++ ) {
+
+					for ( let z = 0; z <= 1; z ++ ) {
+
+						point2.x = x ? max.x : min.x;
+						point2.y = y ? max.y : min.y;
+						point2.z = z ? max.z : min.z;
+
+						this.closestPointToPoint( point2, point1 );
+						const dist = point2.distanceToSquared( point1 );
+						if ( dist < closestDistanceSq ) {
+
+							closestDistanceSq = dist;
+							if ( target1 ) target1.copy( point1 );
+							if ( target2 ) target2.copy( point2 );
+
+							if ( dist < threshold2 ) return Math.sqrt( dist );
+
+						}
+
+					}
+
+				}
+
+			}
+
+			for ( let i = 0; i < 12; i ++ ) {
+
+				const l1 = segments1[ i ];
+				for ( let i2 = 0; i2 < 12; i2 ++ ) {
+
+					const l2 = segments2[ i2 ];
+					closestPointsSegmentToSegment( l1, l2, point1, point2 );
+					const dist = point1.distanceToSquared( point2 );
+					if ( dist < closestDistanceSq ) {
+
+						closestDistanceSq = dist;
+						if ( target1 ) target1.copy( point1 );
+						if ( target2 ) target2.copy( point2 );
+
+						if ( dist < threshold2 ) return Math.sqrt( dist );
+
+					}
+
+				}
+
+			}
+
+			return Math.sqrt( closestDistanceSq );
+
+		};
+
+	} )();
+
+	// sets the vertices of triangle `tri` with the 3 vertices after i
+	function setTriangle( tri, i, index, pos ) {
+
+		const ta = tri.a;
+		const tb = tri.b;
+		const tc = tri.c;
+
+		let i3 = index.getX( i );
+		ta.x = pos.getX( i3 );
+		ta.y = pos.getY( i3 );
+		ta.z = pos.getZ( i3 );
+
+		i3 = index.getX( i + 1 );
+		tb.x = pos.getX( i3 );
+		tb.y = pos.getY( i3 );
+		tb.z = pos.getZ( i3 );
+
+		i3 = index.getX( i + 2 );
+		tc.x = pos.getX( i3 );
+		tc.y = pos.getY( i3 );
+		tc.z = pos.getZ( i3 );
+
+	}
+
+	// Ripped and modified From THREE.js Mesh raycast
+	// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115
+	var vA = new three.Vector3();
+	var vB = new three.Vector3();
+	var vC = new three.Vector3();
+
+	var uvA = new three.Vector2();
+	var uvB = new three.Vector2();
+	var uvC = new three.Vector2();
+
+	var intersectionPoint = new three.Vector3();
+	var intersectionPointWorld = new three.Vector3();
+
+	function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {
+
+		var intersect;
+		if ( material.side === three.BackSide ) {
+
+			intersect = ray.intersectTriangle( pC, pB, pA, true, point );
+
+		} else {
+
+			intersect = ray.intersectTriangle( pA, pB, pC, material.side !== three.DoubleSide, point );
+
+		}
+
+		if ( intersect === null ) return null;
+
+		intersectionPointWorld.copy( point );
+		intersectionPointWorld.applyMatrix4( object.matrixWorld );
+
+		var distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );
+
+		if ( distance < raycaster.near || distance > raycaster.far ) return null;
+
+		return {
+			distance: distance,
+			point: intersectionPointWorld.clone(),
+			object: object
+		};
+
+	}
+
+	function checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {
+
+		vA.fromBufferAttribute( position, a );
+		vB.fromBufferAttribute( position, b );
+		vC.fromBufferAttribute( position, c );
+
+		var intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );
+
+		if ( intersection ) {
+
+			if ( uv ) {
+
+				uvA.fromBufferAttribute( uv, a );
+				uvB.fromBufferAttribute( uv, b );
+				uvC.fromBufferAttribute( uv, c );
+
+				intersection.uv = three.Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new three.Vector2( ) );
+
+			}
+
+			const face = {
+				a: a,
+				b: b,
+				c: c,
+				normal: new three.Vector3( ),
+				materialIndex: 0
+			};
+
+			three.Triangle.getNormal( vA, vB, vC, face.normal );
+
+			intersection.face = face;
+			intersection.faceIndex = a;
+
+		}
+
+		return intersection;
+
+	}
+
+	// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258
+	function intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {
+
+		const triOffset = tri * 3;
+		const a = geo.index.getX( triOffset );
+		const b = geo.index.getX( triOffset + 1 );
+		const c = geo.index.getX( triOffset + 2 );
+
+		const intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );
+
+		if ( intersection ) {
+
+			intersection.faceIndex = tri;
+			if ( intersections ) intersections.push( intersection );
+			return intersection;
+
+		}
+
+		return null;
+
+	}
+
+	function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {
+
+		for ( let i = offset, end = offset + count; i < end; i ++ ) {
+
+			intersectTri( mesh, geo, raycaster, ray, i, intersections );
+
+		}
+
+	}
+
+	function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {
+
+		let dist = Infinity;
+		let res = null;
+		for ( let i = offset, end = offset + count; i < end; i ++ ) {
+
+			const intersection = intersectTri( mesh, geo, raycaster, ray, i );
+			if ( intersection && intersection.distance < dist ) {
+
+				res = intersection;
+				dist = intersection.distance;
+
+			}
+
+		}
+
+		return res;
+
+	}
+
+	function arrayToBox$1( nodeIndex32, array, target ) {
+
+		target.min.x = array[ nodeIndex32 ];
+		target.min.y = array[ nodeIndex32 + 1 ];
+		target.min.z = array[ nodeIndex32 + 2 ];
+
+		target.max.x = array[ nodeIndex32 + 3 ];
+		target.max.y = array[ nodeIndex32 + 4 ];
+		target.max.z = array[ nodeIndex32 + 5 ];
+
+	}
+
+	function iterateOverTriangles(
+		offset,
+		count,
+		geometry,
+		intersectsTriangleFunc,
+		contained,
+		depth,
+		triangle
+	) {
+
+		const index = geometry.index;
+		const pos = geometry.attributes.position;
+		for ( let i = offset, l = count + offset; i < l; i ++ ) {
+
+			setTriangle( triangle, i * 3, index, pos );
+			triangle.needsUpdate = true;
+
+			if ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {
+
+				return true;
+
+			}
+
+		}
+
+		return false;
+
+	}
+
+	/* Generated from "castFunctions.template.js". Do not edit. */
+
+	const boundingBox = new three.Box3();
+	const boxIntersection = new three.Vector3();
+	const xyzFields$1 = [ 'x', 'y', 'z' ];
+
+	function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {
+
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
+		if ( isLeaf ) {
+
+			const offset = uint32Array[ nodeIndex32 + 6 ];
+			const count = uint16Array[ nodeIndex16 + 14 ];
+
+			intersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );
+
+		} else {
+
+			const leftIndex = nodeIndex32 + 8;
+			if ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {
+
+				raycast( leftIndex, mesh, geometry, raycaster, ray, intersects );
+
+			}
+
+			const rightIndex = uint32Array[ nodeIndex32 + 6 ];
+			if ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {
+
+				raycast( rightIndex, mesh, geometry, raycaster, ray, intersects );
+
+			}
+
+		}
+
+	}
+
+	function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {
+
+		let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+		const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
+		if ( isLeaf ) {
+
+			const offset = uint32Array[ nodeIndex32 + 6 ];
+			const count = uint16Array[ nodeIndex16 + 14 ];
+			return intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );
+
+		} else {
+
+			// consider the position of the split plane with respect to the oncoming ray; whichever direction
+			// the ray is coming from, look for an intersection among that side of the tree first
+			const splitAxis = uint32Array[ nodeIndex32 + 7 ];
+			const xyzAxis = xyzFields$1[ splitAxis ];
+			const rayDir = ray.direction[ xyzAxis ];
+			const leftToRight = rayDir >= 0;
+
+			// c1 is the child to check first
+			let c1, c2;
+			if ( leftToRight ) {
+
+				c1 = nodeIndex32 + 8;
+				c2 = uint32Array[ nodeIndex32 + 6 ];
+
+			} else {
+
+				c1 = uint32Array[ nodeIndex32 + 6 ];
+				c2 = nodeIndex32 + 8;
+
+			}
+
+			const c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );
+			const c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;
+
+			// if we got an intersection in the first node and it's closer than the second node's bounding
+			// box, we don't need to consider the second node because it couldn't possibly be a better result
+			if ( c1Result ) {
+
+				// check if the point is within the second bounds
+				const point = c1Result.point[ xyzAxis ];
+				const isOutside = leftToRight ?
+					point <= float32Array[ c2 + splitAxis ] : // min bounding data
+					point >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data
+
+				if ( isOutside ) {
+
+					return c1Result;
+
+				}
+
+			}
+
+			// either there was no intersection in the first node, or there could still be a closer
+			// intersection in the second, so check the second node and then take the better of the two
+			const c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );
+			const c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;
+
+			if ( c1Result && c2Result ) {
+
+				return c1Result.distance <= c2Result.distance ? c1Result : c2Result;
+
+			} else {
+
+				return c1Result || c2Result || null;
+
+			}
+
+		}
+
+	}
+
+	const shapecast = ( function () {
+
+		const _triangle = new SeparatingAxisTriangle();
+		const _cachedBox1 = new three.Box3();
+		const _cachedBox2 = new three.Box3();
+
+		return function shapecast(
+			nodeIndex32,
+			mesh,
+			geometry,
+			intersectsBoundsFunc,
+			intersectsRangeFunc,
+			nodeScoreFunc = null,
+			nodeIndexByteOffset = 0, // offset for unique node identifier
+			depth = 0,
+			triangle = _triangle,
+			cachedBox1 = _cachedBox1,
+			cachedBox2 = _cachedBox2
+		) {
+
+			// Define these inside the function so it has access to the local variables needed
+			// when converting to the buffer equivalents
+			function getLeftOffset( nodeIndex32 ) {
+
+				let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+				// traverse until we find a leaf
+				while ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {
+
+					nodeIndex32 = nodeIndex32 + 8;
+					nodeIndex16 = nodeIndex32 * 2;
+
+				}
+
+				return uint32Array[ nodeIndex32 + 6 ];
+
+			}
+
+			function getRightEndOffset( nodeIndex32 ) {
+
+				let nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+				// traverse until we find a leaf
+				while ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {
+
+					// adjust offset to point to the right node
+					nodeIndex32 = uint32Array[ nodeIndex32 + 6 ];
+					nodeIndex16 = nodeIndex32 * 2;
+
+				}
+
+				// return the end offset of the triangle range
+				return uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];
+
+			}
+
+			let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+			const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
+			if ( isLeaf ) {
+
+				const offset = uint32Array[ nodeIndex32 + 6 ];
+				const count = uint16Array[ nodeIndex16 + 14 ];
+				return intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );
+
+			} else {
+
+				const left = nodeIndex32 + 8;
+				const right = uint32Array[ nodeIndex32 + 6 ];
+				let c1 = left;
+				let c2 = right;
+
+				let score1, score2;
+				let box1, box2;
+				if ( nodeScoreFunc ) {
+
+					box1 = cachedBox1;
+					box2 = cachedBox2;
+
+					// bounding data is not offset
+					arrayToBox$1( c1, float32Array, box1 );
+					arrayToBox$1( c2, float32Array, box2 );
+
+					score1 = nodeScoreFunc( box1 );
+					score2 = nodeScoreFunc( box2 );
+
+					if ( score2 < score1 ) {
+
+						c1 = right;
+						c2 = left;
+
+						const temp = score1;
+						score1 = score2;
+						score2 = temp;
+
+						box1 = box2;
+						// box2 is always set before use below
+
+					}
+
+				}
+
+				// Check box 1 intersection
+				if ( ! box1 ) {
+
+					box1 = cachedBox1;
+					arrayToBox$1( c1, float32Array, box1 );
+
+				}
+
+				const isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );
+				const c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, nodeIndexByteOffset + c1 );
+
+				let c1StopTraversal;
+				if ( c1Intersection === CONTAINED ) {
+
+					const offset = getLeftOffset( c1 );
+					const end = getRightEndOffset( c1 );
+					const count = end - offset;
+
+					c1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c1 );
+
+				} else {
+
+					c1StopTraversal =
+						c1Intersection &&
+						shapecast(
+							c1,
+							mesh,
+							geometry,
+							intersectsBoundsFunc,
+							intersectsRangeFunc,
+							nodeScoreFunc,
+							nodeIndexByteOffset,
+							depth + 1,
+							triangle,
+							cachedBox1,
+							cachedBox2
+						);
+
+				}
+
+				if ( c1StopTraversal ) return true;
+
+				// Check box 2 intersection
+				// cached box2 will have been overwritten by previous traversal
+				box2 = cachedBox2;
+				arrayToBox$1( c2, float32Array, box2 );
+
+				const isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );
+				const c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, nodeIndexByteOffset + c2 );
+
+				let c2StopTraversal;
+				if ( c2Intersection === CONTAINED ) {
+
+					const offset = getLeftOffset( c2 );
+					const end = getRightEndOffset( c2 );
+					const count = end - offset;
+
+					c2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c2 );
+
+				} else {
+
+					c2StopTraversal =
+						c2Intersection &&
+						shapecast(
+							c2,
+							mesh,
+							geometry,
+							intersectsBoundsFunc,
+							intersectsRangeFunc,
+							nodeScoreFunc,
+							nodeIndexByteOffset,
+							depth + 1,
+							triangle,
+							cachedBox1,
+							cachedBox2
+						);
+
+				}
+
+				if ( c2StopTraversal ) return true;
+
+				return false;
+
+			}
+
+		};
+
+	} )();
+
+	const intersectsGeometry = ( function () {
+
+		const triangle = new SeparatingAxisTriangle();
+		const triangle2 = new SeparatingAxisTriangle();
+		const cachedMesh = new three.Mesh();
+		const invertedMat = new three.Matrix4();
+
+		const obb = new OrientedBox();
+		const obb2 = new OrientedBox();
+
+		return function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {
+
+			let nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;
+
+			if ( cachedObb === null ) {
+
+				if ( ! otherGeometry.boundingBox ) {
+
+					otherGeometry.computeBoundingBox();
+
+				}
+
+				obb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );
+				obb.update();
+				cachedObb = obb;
+
+			}
+
+			const isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );
+			if ( isLeaf ) {
+
+				const thisGeometry = geometry;
+				const thisIndex = thisGeometry.index;
+				const thisPos = thisGeometry.attributes.position;
+
+				const index = otherGeometry.index;
+				const pos = otherGeometry.attributes.position;
+
+				const offset = uint32Array[ nodeIndex32 + 6 ];
+				const count = uint16Array[ nodeIndex16 + 14 ];
+
+				// get the inverse of the geometry matrix so we can transform our triangles into the
+				// geometry space we're trying to test. We assume there are fewer triangles being checked
+				// here.
+				invertedMat.copy( geometryToBvh ).invert();
+
+				if ( otherGeometry.boundsTree ) {
+
+					arrayToBox$1( nodeIndex32, float32Array, obb2 );
+					obb2.matrix.copy( invertedMat );
+					obb2.update();
+
+					cachedMesh.geometry = otherGeometry;
+					const res = otherGeometry.boundsTree.shapecast( cachedMesh, {
+
+						intersectsBounds: box => obb2.intersectsBox( box ),
+
+						intersectsTriangle: tri => {
+
+							tri.a.applyMatrix4( geometryToBvh );
+							tri.b.applyMatrix4( geometryToBvh );
+							tri.c.applyMatrix4( geometryToBvh );
+							tri.update();
+
+							for ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {
+
+								// this triangle needs to be transformed into the current BVH coordinate frame
+								setTriangle( triangle2, i, thisIndex, thisPos );
+								triangle2.update();
+								if ( tri.intersectsTriangle( triangle2 ) ) {
+
+									return true;
+
+								}
+
+							}
+
+							return false;
+
+						}
+
+					} );
+					cachedMesh.geometry = null;
+
+					return res;
+
+				} else {
+
+					for ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {
+
+						// this triangle needs to be transformed into the current BVH coordinate frame
+						setTriangle( triangle, i, thisIndex, thisPos );
+						triangle.a.applyMatrix4( invertedMat );
+						triangle.b.applyMatrix4( invertedMat );
+						triangle.c.applyMatrix4( invertedMat );
+						triangle.update();
+
+						for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
+
+							setTriangle( triangle2, i2, index, pos );
+							triangle2.update();
+
+							if ( triangle.intersectsTriangle( triangle2 ) ) {
+
+								return true;
+
+							}
+
+						}
+
+					}
+
+				}
+
+			} else {
+
+				const left = nodeIndex32 + 8;
+				const right = uint32Array[ nodeIndex32 + 6 ];
+
+				arrayToBox$1( left, float32Array, boundingBox );
+				const leftIntersection =
+					cachedObb.intersectsBox( boundingBox ) &&
+					intersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
+
+				if ( leftIntersection ) return true;
+
+				arrayToBox$1( right, float32Array, boundingBox );
+				const rightIntersection =
+					cachedObb.intersectsBox( boundingBox ) &&
+					intersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );
+
+				if ( rightIntersection ) return true;
+
+				return false;
+
+			}
+
+		};
+
+	} )();
+
+	function intersectRay( nodeIndex32, array, ray, target ) {
+
+		arrayToBox$1( nodeIndex32, array, boundingBox );
+		return ray.intersectBox( boundingBox, target );
+
+	}
+
+	const bufferStack = [];
+	let _prevBuffer;
+	let _float32Array;
+	let _uint16Array;
+	let _uint32Array;
+	function setBuffer( buffer ) {
+
+		if ( _prevBuffer ) {
+
+			bufferStack.push( _prevBuffer );
+
+		}
+
+		_prevBuffer = buffer;
+		_float32Array = new Float32Array( buffer );
+		_uint16Array = new Uint16Array( buffer );
+		_uint32Array = new Uint32Array( buffer );
+
+	}
+
+	function clearBuffer() {
+
+		_prevBuffer = null;
+		_float32Array = null;
+		_uint16Array = null;
+		_uint32Array = null;
+
+		if ( bufferStack.length ) {
+
+			setBuffer( bufferStack.pop() );
+
+		}
+
+	}
+
+	const SKIP_GENERATION = Symbol( 'skip tree generation' );
+
+	const obb = new OrientedBox();
+	const temp = new three.Vector3();
+	const tri2 = new SeparatingAxisTriangle();
+	const temp1 = new three.Vector3();
+	const temp2 = new three.Vector3();
+	const tempBox = new three.Box3();
+	const triangle = new SeparatingAxisTriangle();
+
+	class MeshBVH {
+
+		static serialize( bvh, geometry, copyIndexBuffer = true ) {
+
+			const rootData = bvh._roots;
+			const indexAttribute = geometry.getIndex();
+			const result = {
+				roots: rootData,
+				index: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,
+			};
+
+			return result;
+
+		}
+
+		static deserialize( data, geometry, setIndex = true ) {
+
+			const { index, roots } = data;
+			const bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );
+			bvh._roots = roots;
+
+			if ( setIndex ) {
+
+				const indexAttribute = geometry.getIndex();
+				if ( indexAttribute === null ) {
+
+					const newIndex = new three.BufferAttribute( data.index, 1, false );
+					geometry.setIndex( newIndex );
+
+				} else if ( indexAttribute.array !== index ) {
+
+					indexAttribute.array.set( index );
+					indexAttribute.needsUpdate = true;
+
+				}
+
+			}
+
+			return bvh;
+
+		}
+
+		constructor( geometry, options = {} ) {
+
+			if ( ! geometry.isBufferGeometry ) {
+
+				throw new Error( 'MeshBVH: Only BufferGeometries are supported.' );
+
+			} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {
+
+				throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );
+
+			} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {
+
+				throw new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );
+
+			}
+
+			// default options
+			options = Object.assign( {
+
+				strategy: CENTER,
+				maxDepth: 40,
+				maxLeafTris: 10,
+				verbose: true,
+
+				setBoundingBox: true,
+
+				// undocumented options
+
+				// Whether to skip generating the tree. Used for deserialization.
+				[ SKIP_GENERATION ]: false
+
+			}, options );
+			options.strategy = Math.max( 0, Math.min( 2, options.strategy ) );
+
+			this._roots = null;
+			if ( ! options[ SKIP_GENERATION ] ) {
+
+				this._roots = buildPackedTree( geometry, options );
+
+				if ( ! geometry.boundingBox && options.setBoundingBox ) {
+
+					geometry.boundingBox = this.getBoundingBox( new three.Box3() );
+
+				}
+
+			}
+
+			// retain references to the geometry so we can use them it without having to
+			// take a geometry reference in every function.
+			this.geometry = geometry;
+
+		}
+
+		refit( nodeIndices = null, terminationIndices = null ) {
+
+			if ( nodeIndices && Array.isArray( nodeIndices ) ) {
+
+				nodeIndices = new Set( nodeIndices );
+
+			}
+
+			if ( terminationIndices && Array.isArray( terminationIndices ) ) {
+
+				terminationIndices = new Set( terminationIndices );
+
+			}
+
+			const geometry = this.geometry;
+			const indexArr = geometry.index.array;
+			const posArr = geometry.attributes.position.array;
+			let buffer, uint32Array, uint16Array, float32Array;
+			let byteOffset = 0;
+			const roots = this._roots;
+			for ( let i = 0, l = roots.length; i < l; i ++ ) {
+
+				buffer = roots[ i ];
+				uint32Array = new Uint32Array( buffer );
+				uint16Array = new Uint16Array( buffer );
+				float32Array = new Float32Array( buffer );
+
+				_traverse( 0, byteOffset );
+				byteOffset += buffer.byteLength;
+
+			}
+
+			function _traverse( node32Index, byteOffset, force = false ) {
+
+				const node16Index = node32Index * 2;
+				const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
+				if ( isLeaf ) {
+
+					const offset = uint32Array[ node32Index + 6 ];
+					const count = uint16Array[ node16Index + 14 ];
+
+					let minx = Infinity;
+					let miny = Infinity;
+					let minz = Infinity;
+					let maxx = - Infinity;
+					let maxy = - Infinity;
+					let maxz = - Infinity;
+					for ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {
+
+						const index3 = indexArr[ i ] * 3;
+						const x = posArr[ index3 + 0 ];
+						const y = posArr[ index3 + 1 ];
+						const z = posArr[ index3 + 2 ];
+
+						if ( x < minx ) minx = x;
+						if ( x > maxx ) maxx = x;
+
+						if ( y < miny ) miny = y;
+						if ( y > maxy ) maxy = y;
+
+						if ( z < minz ) minz = z;
+						if ( z > maxz ) maxz = z;
+
+					}
+
+					if (
+						float32Array[ node32Index + 0 ] !== minx ||
+						float32Array[ node32Index + 1 ] !== miny ||
+						float32Array[ node32Index + 2 ] !== minz ||
+
+						float32Array[ node32Index + 3 ] !== maxx ||
+						float32Array[ node32Index + 4 ] !== maxy ||
+						float32Array[ node32Index + 5 ] !== maxz
+					) {
+
+						float32Array[ node32Index + 0 ] = minx;
+						float32Array[ node32Index + 1 ] = miny;
+						float32Array[ node32Index + 2 ] = minz;
+
+						float32Array[ node32Index + 3 ] = maxx;
+						float32Array[ node32Index + 4 ] = maxy;
+						float32Array[ node32Index + 5 ] = maxz;
+
+						return true;
+
+					} else {
+
+						return false;
+
+					}
+
+				} else {
+
+					const left = node32Index + 8;
+					const right = uint32Array[ node32Index + 6 ];
+
+					// the indentifying node indices provided by the shapecast function include offsets of all
+					// root buffers to guarantee they're unique between roots so offset left and right indices here.
+					const offsetLeft = left + byteOffset;
+					const offsetRight = right + byteOffset;
+
+					let leftChange = false;
+					let forceLeft = force || terminationIndices && terminationIndices.has( offsetLeft );
+					let traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( offsetLeft ) : true );
+					if ( traverseLeft ) {
+
+						leftChange = _traverse( left, byteOffset, forceLeft );
+
+					}
+
+					let rightChange = false;
+					let forceRight = force || terminationIndices && terminationIndices.has( offsetRight );
+					let traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( offsetRight ) : true );
+					if ( traverseRight ) {
+
+						rightChange = _traverse( right, byteOffset, forceRight );
+
+					}
+
+					const didChange = leftChange || rightChange;
+
+					if ( didChange ) {
+
+						for ( let i = 0; i < 3; i ++ ) {
+
+							const lefti = left + i;
+							const righti = right + i;
+							const minLeftValue = float32Array[ lefti ];
+							const maxLeftValue = float32Array[ lefti + 3 ];
+							const minRightValue = float32Array[ righti ];
+							const maxRightValue = float32Array[ righti + 3 ];
+
+							float32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;
+							float32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;
+
+						}
+
+					}
+
+					return didChange;
+
+				}
+
+			}
+
+		}
+
+		traverse( callback, rootIndex = 0 ) {
+
+			const buffer = this._roots[ rootIndex ];
+			const uint32Array = new Uint32Array( buffer );
+			const uint16Array = new Uint16Array( buffer );
+			_traverse( 0 );
+
+			function _traverse( node32Index, depth = 0 ) {
+
+				const node16Index = node32Index * 2;
+				const isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;
+				if ( isLeaf ) {
+
+					const offset = uint32Array[ node32Index + 6 ];
+					const count = uint16Array[ node16Index + 14 ];
+					callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );
+
+				} else {
+
+					const left = node32Index + BYTES_PER_NODE / 4;
+					const right = uint32Array[ node32Index + 6 ];
+					const splitAxis = uint32Array[ node32Index + 7 ];
+					const stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );
+
+					if ( ! stopTraversal ) {
+
+						_traverse( left, depth + 1 );
+						_traverse( right, depth + 1 );
+
+					}
+
+				}
+
+			}
+
+		}
+
+		/* Core Cast Functions */
+		raycast( mesh, raycaster, ray, intersects ) {
+
+			const geometry = this.geometry;
+			for ( const root of this._roots ) {
+
+				setBuffer( root );
+				raycast( 0, mesh, geometry, raycaster, ray, intersects );
+				clearBuffer();
+
+			}
+
+		}
+
+		raycastFirst( mesh, raycaster, ray ) {
+
+			const geometry = this.geometry;
+			let closestResult = null;
+			for ( const root of this._roots ) {
+
+				setBuffer( root );
+				const result = raycastFirst( 0, mesh, geometry, raycaster, ray );
+				clearBuffer();
+
+				if ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {
+
+					closestResult = result;
+
+				}
+
+			}
+
+
+			return closestResult;
+
+		}
+
+		intersectsGeometry( mesh, otherGeometry, geomToMesh ) {
+
+			const geometry = this.geometry;
+			let result = false;
+			for ( const root of this._roots ) {
+
+				setBuffer( root );
+				result = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );
+				clearBuffer();
+
+				if ( result ) {
+
+					break;
+
+				}
+
+			}
+
+			return result;
+
+		}
+
+		shapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {
+
+			const geometry = this.geometry;
+			if ( callbacks instanceof Function ) {
+
+				if ( _intersectsTriangleFunc ) {
+
+					// Support the previous function signature that provided three sequential index buffer
+					// indices here.
+					const originalTriangleFunc = _intersectsTriangleFunc;
+					_intersectsTriangleFunc = ( tri, index, contained, depth ) => {
+
+						const i3 = index * 3;
+						return originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );
+
+					};
+
+
+				}
+
+				callbacks = {
+
+					boundsTraverseOrder: _orderNodesFunc,
+					intersectsBounds: callbacks,
+					intersectsTriangle: _intersectsTriangleFunc,
+					intersectsRange: null,
+
+				};
+
+				console.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.' );
+
+			}
+
+			let {
+				boundsTraverseOrder,
+				intersectsBounds,
+				intersectsRange,
+				intersectsTriangle,
+			} = callbacks;
+
+			if ( intersectsRange && intersectsTriangle ) {
+
+				const originalIntersectsRange = intersectsRange;
+				intersectsRange = ( offset, count, contained, depth, nodeIndex ) => {
+
+					if ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {
+
+						return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
+
+					}
+
+					return true;
+
+				};
+
+			} else if ( ! intersectsRange ) {
+
+				if ( intersectsTriangle ) {
+
+					intersectsRange = ( offset, count, contained, depth ) => {
+
+						return iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );
+
+					};
+
+				} else {
+
+					intersectsRange = ( offset, count, contained ) => {
+
+						return contained;
+
+					};
+
+				}
+
+			}
+
+			let result = false;
+			let byteOffset = 0;
+			for ( const root of this._roots ) {
+
+				setBuffer( root );
+				result = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder, byteOffset );
+				clearBuffer();
+
+				if ( result ) {
+
+					break;
+
+				}
+
+				byteOffset += root.byteLength;
+
+			}
+
+			return result;
+
+		}
+
+		/* Derived Cast Functions */
+		intersectsBox( mesh, box, boxToMesh ) {
+
+			obb.set( box.min, box.max, boxToMesh );
+			obb.update();
+
+			return this.shapecast(
+				mesh,
+				{
+					intersectsBounds: box => obb.intersectsBox( box ),
+					intersectsTriangle: tri => obb.intersectsTriangle( tri )
+				}
+			);
+
+		}
+
+		intersectsSphere( mesh, sphere ) {
+
+			return this.shapecast(
+				mesh,
+				{
+					intersectsBounds: box => sphere.intersectsBox( box ),
+					intersectsTriangle: tri => tri.intersectsSphere( sphere )
+				}
+			);
+
+		}
+
+		closestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {
+
+			if ( ! otherGeometry.boundingBox ) {
+
+				otherGeometry.computeBoundingBox();
+
+			}
+
+			obb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );
+			obb.update();
+
+			const pos = otherGeometry.attributes.position;
+			const index = otherGeometry.index;
+
+			let tempTarget1 = null;
+			let tempTarget2 = null;
+			if ( target1 ) {
+
+				tempTarget1 = temp1;
+
+			}
+
+			if ( target2 ) {
+
+				tempTarget2 = temp2;
+
+			}
+
+			let closestDistance = Infinity;
+			this.shapecast(
+				mesh,
+				{
+
+					boundsTraverseOrder: box => {
+
+						return obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );
+
+					},
+
+					intersectsBounds: ( box, isLeaf, score ) => {
+
+						return score < closestDistance && score < maxThreshold;
+
+					},
+
+					intersectsTriangle: tri => {
+
+						if ( tri.needsUpdate ) {
+
+							tri.update();
+
+						}
+
+						const sphere1 = tri.sphere;
+						for ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {
+
+							setTriangle( tri2, i2, index, pos );
+							tri2.a.applyMatrix4( geometryToBvh );
+							tri2.b.applyMatrix4( geometryToBvh );
+							tri2.c.applyMatrix4( geometryToBvh );
+							tri2.sphere.setFromPoints( tri2.points );
+
+							const sphere2 = tri2.sphere;
+							const sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;
+							if ( sphereDist > closestDistance ) {
+
+								continue;
+
+							}
+
+							tri2.update();
+
+							const dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );
+							if ( dist < closestDistance ) {
+
+								if ( target1 ) {
+
+									target1.copy( tempTarget1 );
+
+								}
+
+								if ( target2 ) {
+
+									target2.copy( tempTarget2 );
+
+								}
+
+								closestDistance = dist;
+
+							}
+
+							// stop traversal if we find a point that's under the given threshold
+							if ( dist < minThreshold ) {
+
+								return true;
+
+							}
+
+						}
+
+						return false;
+
+					}
+
+				}
+
+			);
+
+			return closestDistance;
+
+		}
+
+		distanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {
+
+			return this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );
+
+		}
+
+		closestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {
+
+			// early out if under minThreshold
+			// skip checking if over maxThreshold
+			// set minThreshold = maxThreshold to quickly check if a point is within a threshold
+			// returns Infinity if no value found
+			const minThresholdSq = minThreshold * minThreshold;
+			const maxThresholdSq = maxThreshold * maxThreshold;
+			let closestDistanceSq = Infinity;
+			this.shapecast(
+
+				mesh,
+				{
+
+					boundsTraverseOrder: box => {
+
+						temp.copy( point ).clamp( box.min, box.max );
+						return temp.distanceToSquared( point );
+
+					},
+
+					intersectsBounds: ( box, isLeaf, score ) => {
+
+						return score < closestDistanceSq && score < maxThresholdSq;
+
+					},
+
+					intersectsTriangle: tri => {
+
+						tri.closestPointToPoint( point, temp );
+						const distSq = point.distanceToSquared( temp );
+						if ( distSq < closestDistanceSq ) {
+
+							if ( target ) {
+
+								target.copy( temp );
+
+							}
+
+							closestDistanceSq = distSq;
+
+						}
+
+						if ( distSq < minThresholdSq ) {
+
+							return true;
+
+						} else {
+
+							return false;
+
+						}
+
+					},
+
+				}
+
+			);
+
+			return Math.sqrt( closestDistanceSq );
+
+		}
+
+		distanceToPoint( mesh, point, minThreshold, maxThreshold ) {
+
+			return this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );
+
+		}
+
+		getBoundingBox( target ) {
+
+			target.makeEmpty();
+
+			const roots = this._roots;
+			roots.forEach( buffer => {
+
+				arrayToBox$1( 0, new Float32Array( buffer ), tempBox );
+				target.union( tempBox );
+
+			} );
+
+			return target;
+
+		}
+
+	}
+
+	const wiremat = new three.LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );
+	const boxGeom = new three.Box3Helper().geometry;
+	let boundingBox$1 = new three.Box3();
+
+	class MeshBVHRootVisualizer extends three.Group {
+
+		constructor( mesh, depth = 10, group = 0 ) {
+
+			super( 'MeshBVHRootVisualizer' );
+
+			this.depth = depth;
+			this.mesh = mesh;
+			this._group = group;
+
+			this.update();
+
+		}
+
+		update() {
+
+			const boundsTree = this.mesh.geometry.boundsTree;
+			let requiredChildren = 0;
+			if ( boundsTree ) {
+
+				boundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {
+
+					let isTerminal = isLeaf || countOrIsUnfinished;
+
+					// Stop traversal
+					if ( depth >= this.depth ) {
+
+						return true;
+
+					}
+
+					if ( depth === this.depth - 1 || isTerminal ) {
+
+						let m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;
+						if ( ! m ) {
+
+							m = new three.LineSegments( boxGeom, wiremat );
+							m.raycast = () => [];
+							this.add( m );
+
+						}
+
+						requiredChildren ++;
+						arrayToBox( boundingData, boundingBox$1 );
+						boundingBox$1.getCenter( m.position );
+						m.scale.subVectors( boundingBox$1.max, boundingBox$1.min ).multiplyScalar( 0.5 );
+
+						if ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;
+						if ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;
+						if ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;
+
+					}
+
+				} );
+
+			}
+
+			while ( this.children.length > requiredChildren ) this.remove( this.children.pop() );
+
+		}
+
+	}
+
+	class MeshBVHVisualizer extends three.Group {
+
+		constructor( mesh, depth = 10 ) {
+
+			super( 'MeshBVHVisualizer' );
+
+			this.depth = depth;
+			this.mesh = mesh;
+			this._roots = [];
+
+			this.update();
+
+		}
+
+		update() {
+
+			const bvh = this.mesh.geometry.boundsTree;
+			const totalRoots = bvh ? bvh._roots.length : 0;
+			while ( this._roots.length > totalRoots ) {
+
+				this._roots.pop();
+
+			}
+
+			for ( let i = 0; i < totalRoots; i ++ ) {
+
+				if ( i >= this._roots.length ) {
+
+					const root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );
+					this.add( root );
+					this._roots.push( root );
+
+				} else {
+
+					let root = this._roots[ i ];
+					root.depth = this.depth;
+					root.mesh = this.mesh;
+					root.update();
+
+				}
+
+			}
+
+		}
+
+		updateMatrixWorld( ...args ) {
+
+			this.position.copy( this.mesh.position );
+			this.rotation.copy( this.mesh.rotation );
+			this.scale.copy( this.mesh.scale );
+
+			super.updateMatrixWorld( ...args );
+
+		}
+
+		copy( source ) {
+
+			this.depth = source.depth;
+			this.mesh = source.mesh;
+
+		}
+
+		clone() {
+
+			return new MeshBVHVisualizer( this.mesh, this.depth );
+
+		}
+
+	}
+
+	// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object
+	function getPrimitiveSize( el ) {
+
+		switch ( typeof el ) {
+
+			case 'number':
+				return 8;
+			case 'string':
+				return el.length * 2;
+			case 'boolean':
+				return 4;
+			default:
+				return 0;
+
+		}
+
+	}
+
+	function isTypedArray( arr ) {
+
+		const regex = /(Uint|Int|Float)(8|16|32)Array/;
+		return regex.test( arr.constructor.name );
+
+	}
+
+	function getRootExtremes( bvh, group ) {
+
+		const result = {
+			total: 0,
+			depth: {
+				min: Infinity, max: - Infinity
+			},
+			tris: {
+				min: Infinity, max: - Infinity
+			},
+			splits: [ 0, 0, 0 ]
+		};
+
+		bvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {
+
+			result.total ++;
+			if ( isLeaf ) {
+
+				result.depth.min = Math.min( depth, result.depth.min );
+				result.depth.max = Math.max( depth, result.depth.max );
+
+				result.tris.min = Math.min( count, result.tris.min );
+				result.tris.max = Math.max( count, result.tris.max );
+
+			} else {
+
+				result.splits[ offsetOrSplit ] ++;
+
+			}
+
+		}, group );
+
+		// If there are no leaf nodes because the tree hasn't finished generating yet.
+		if ( result.tris.min === Infinity ) {
+
+			result.tris.min = 0;
+			result.tris.max = 0;
+
+		}
+
+		if ( result.depth.min === Infinity ) {
+
+			result.depth.min = 0;
+			result.depth.max = 0;
+
+		}
+
+		return result;
+
+	}
+
+	function getBVHExtremes( bvh ) {
+
+		return bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );
+
+	}
+
+	function estimateMemoryInBytes( obj ) {
+
+		const traversed = new Set();
+		const stack = [ obj ];
+		let bytes = 0;
+
+		while ( stack.length ) {
+
+			const curr = stack.pop();
+			if ( traversed.has( curr ) ) {
+
+				continue;
+
+			}
+			traversed.add( curr );
+
+			for ( let key in curr ) {
+
+				if ( ! curr.hasOwnProperty( key ) ) {
+
+					continue;
+
+				}
+
+				bytes += getPrimitiveSize( key );
+
+				const value = curr[ key ];
+				if ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {
+
+					if ( isTypedArray( value ) ) {
+
+						bytes += value.byteLength;
+
+					} else if ( value instanceof ArrayBuffer ) {
+
+						bytes += value.byteLength;
+
+					} else {
+
+						stack.push( value );
+
+					}
+
+				} else {
+
+					bytes += getPrimitiveSize( value );
+
+				}
+
+
+			}
+
+		}
+
+		return bytes;
+
+	}
+
+	const box1 = new three.Box3();
+	const box2 = new three.Box3();
+	const vec = new three.Vector3();
+
+	class MeshBVHDebug {
+
+		constructor( bvh, geometry ) {
+
+			this.bvh = bvh;
+			this.geometry = geometry;
+
+		}
+
+		// Returns a simple, human readable object that represents the BVH.
+		getJSONStructure() {
+
+			const { bvh } = this;
+			const depthStack = [];
+
+			bvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {
+
+				const info = {
+					bounds: arrayToBox( boundingData, new three.Box3() ),
+				};
+
+				if ( isLeaf ) {
+
+					info.count = count;
+					info.offset = offset;
+
+				} else {
+
+					info.left = null;
+					info.right = null;
+
+				}
+
+				depthStack[ depth ] = info;
+
+				// traversal hits the left then right node
+				const parent = depthStack[ depth - 1 ];
+				if ( parent ) {
+
+					if ( parent.left === null ) {
+
+						parent.left = info;
+
+					} else {
+
+						parent.right = info;
+
+					}
+
+				}
+
+			} );
+
+			return depthStack[ 0 ];
+
+		}
+
+		validateBounds() {
+
+			const { bvh, geometry } = this;
+			const depthStack = [];
+			const index = geometry.index;
+			const position = geometry.getAttribute( 'position' );
+			let passes = true;
+
+			bvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {
+
+				const info = {
+					depth,
+					isLeaf,
+					boundingData,
+					offset,
+					count,
+				};
+				depthStack[ depth ] = info;
+
+				arrayToBox( boundingData, box1 );
+				const parent = depthStack[ depth - 1 ];
+
+				if ( isLeaf ) {
+
+					// check triangles
+					for ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {
+
+						const i0 = index.getX( i );
+						const i1 = index.getX( i + 1 );
+						const i2 = index.getX( i + 2 );
+
+						let isContained;
+
+						vec.fromBufferAttribute( position, i0 );
+						isContained = box1.containsPoint( vec );
+
+						vec.fromBufferAttribute( position, i1 );
+						isContained = isContained && box1.containsPoint( vec );
+
+						vec.fromBufferAttribute( position, i2 );
+						isContained = isContained && box1.containsPoint( vec );
+
+						console.assert( isContained, 'Leaf bounds does not fully contain triangle.' );
+						passes = passes && isContained;
+
+					}
+
+				}
+
+				if ( parent ) {
+
+					// check if my bounds fit in my parents
+					arrayToBox( boundingData, box2 );
+
+					const isContained = box2.containsBox( box1 );
+					console.assert( isContained, 'Parent bounds does not fully contain child.' );
+					passes = passes && isContained;
+
+				}
+
+			} );
+
+			return passes;
+
+		}
+
+	}
+
+	const ray = new three.Ray();
+	const tmpInverseMatrix = new three.Matrix4();
+	const origMeshRaycastFunc = three.Mesh.prototype.raycast;
+
+	function acceleratedRaycast( raycaster, intersects ) {
+
+		if ( this.geometry.boundsTree ) {
+
+			if ( this.material === undefined ) return;
+
+			tmpInverseMatrix.copy( this.matrixWorld ).invert();
+			ray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );
+
+			if ( raycaster.firstHitOnly === true ) {
+
+				const res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );
+				if ( res ) intersects.push( res );
+
+			} else {
+
+				this.geometry.boundsTree.raycast( this, raycaster, ray, intersects );
+
+			}
+
+		} else {
+
+			origMeshRaycastFunc.call( this, raycaster, intersects );
+
+		}
+
+	}
+
+	function computeBoundsTree( options ) {
+
+		this.boundsTree = new MeshBVH( this, options );
+		return this.boundsTree;
+
+	}
+
+	function disposeBoundsTree() {
+
+		this.boundsTree = null;
+
+	}
+
+	exports.MeshBVH = MeshBVH;
+	exports.Visualizer = MeshBVHVisualizer;
+	exports.MeshBVHVisualizer = MeshBVHVisualizer;
+	exports.MeshBVHDebug = MeshBVHDebug;
+	exports.acceleratedRaycast = acceleratedRaycast;
+	exports.computeBoundsTree = computeBoundsTree;
+	exports.disposeBoundsTree = disposeBoundsTree;
+	exports.CENTER = CENTER;
+	exports.AVERAGE = AVERAGE;
+	exports.SAH = SAH;
+	exports.NOT_INTERSECTED = NOT_INTERSECTED;
+	exports.INTERSECTED = INTERSECTED;
+	exports.CONTAINED = CONTAINED;
+	exports.estimateMemoryInBytes = estimateMemoryInBytes;
+	exports.getBVHExtremes = getBVHExtremes;
+
+	Object.defineProperty(exports, '__esModule', { value: true });
+
+}));
+//# sourceMappingURL=index.umd.js.map
diff --git a/build/index.umd.js.map b/build/index.umd.js.map
index bf47ee628..4164a6caf 100644
--- a/build/index.umd.js.map
+++ b/build/index.umd.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.umd.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\r\nexport const closestPointLineToLine = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\r\n\tconst dir1 = new Vector3();\r\n\tconst dir2 = new Vector3();\r\n\tconst v02 = new Vector3();\r\n\treturn function closestPointLineToLine( l1, l2, result ) {\r\n\r\n\t\tconst v0 = l1.start;\r\n\t\tconst v10 = dir1;\r\n\t\tconst v2 = l2.start;\r\n\t\tconst v32 = dir2;\r\n\r\n\t\tv02.subVectors( v0, v2 );\r\n\t\tdir1.subVectors( l1.end, l2.start );\r\n\t\tdir2.subVectors( l2.end, l2.start );\r\n\r\n\t\t// float d0232 = v02.Dot(v32);\r\n\t\tconst d0232 = v02.dot( v32 );\r\n\r\n\t\t// float d3210 = v32.Dot(v10);\r\n\t\tconst d3210 = v32.dot( v10 );\r\n\r\n\t\t// float d3232 = v32.Dot(v32);\r\n\t\tconst d3232 = v32.dot( v32 );\r\n\r\n\t\t// float d0210 = v02.Dot(v10);\r\n\t\tconst d0210 = v02.dot( v10 );\r\n\r\n\t\t// float d1010 = v10.Dot(v10);\r\n\t\tconst d1010 = v10.dot( v10 );\r\n\r\n\t\t// float denom = d1010*d3232 - d3210*d3210;\r\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\r\n\r\n\t\tlet d, d2;\r\n\t\tif ( denom !== 0 ) {\r\n\r\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\r\n\r\n\t\t} else {\r\n\r\n\t\t\td = 0;\r\n\r\n\t\t}\r\n\r\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\r\n\r\n\t\tresult.x = d;\r\n\t\tresult.y = d2;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const closestPointsSegmentToSegment = ( function () {\r\n\r\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\r\n\tconst paramResult = new Vector2();\r\n\tconst temp1 = new Vector3();\r\n\tconst temp2 = new Vector3();\r\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\r\n\r\n\t\tclosestPointLineToLine( l1, l2, paramResult );\r\n\r\n\t\tlet d = paramResult.x;\r\n\t\tlet d2 = paramResult.y;\r\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\tl1.at( d, target1 );\r\n\t\t\tl2.at( d2, target2 );\r\n\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d >= 0 && d <= 1 ) {\r\n\r\n\t\t\t// Only d2 is out of bounds.\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tl2.at( 0, target2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl2.at( 1, target2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\r\n\t\t\treturn;\r\n\r\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\r\n\r\n\t\t\t// Only d is out of bounds.\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tl1.at( 0, target1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tl1.at( 1, target1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\r\n\t\t\treturn;\r\n\r\n\t\t} else {\r\n\r\n\t\t\t// Both u and u2 are out of bounds.\r\n\t\t\tlet p;\r\n\t\t\tif ( d < 0 ) {\r\n\r\n\t\t\t\tp = l1.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp = l1.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tlet p2;\r\n\t\t\tif ( d2 < 0 ) {\r\n\r\n\t\t\t\tp2 = l2.start;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tp2 = l2.end;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst closestPoint = temp1;\r\n\t\t\tconst closestPoint2 = temp2;\r\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\r\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\r\n\r\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\r\n\r\n\t\t\t\ttarget1.copy( closestPoint );\r\n\t\t\t\ttarget2.copy( p2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\ttarget1.copy( p );\r\n\t\t\t\ttarget2.copy( closestPoint2 );\r\n\t\t\t\treturn;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nexport const sphereIntersectTriangle = ( function () {\r\n\r\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\r\n\tconst closestPointTemp = new Vector3();\r\n\tconst projectedPointTemp = new Vector3();\r\n\tconst planeTemp = new Plane();\r\n\tconst lineTemp = new Line3();\r\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\r\n\r\n\t\tconst { radius, center } = sphere;\r\n\t\tconst { a, b, c } = triangle;\r\n\r\n\t\t// phase 1\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = b;\r\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = a;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\tlineTemp.start = b;\r\n\t\tlineTemp.end = c;\r\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\r\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\r\n\r\n\t\t// phase 2\r\n\t\tconst plane = triangle.getPlane( planeTemp );\r\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\r\n\t\tif ( dp <= radius ) {\r\n\r\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\r\n\t\t\tconst cp = triangle.containsPoint( pp );\r\n\t\t\tif ( cp ) return true;\r\n\r\n\t\t}\r\n\r\n\t\treturn false;\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\r\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\r\n\r\nexport class OrientedBox extends Box3 {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isOrientedBox = true;\r\n\t\tthis.matrix = new Matrix4();\r\n\t\tthis.invMatrix = new Matrix4();\r\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\r\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.sphere = new Sphere();\r\n\r\n\t}\r\n\r\n\tset( min, max, matrix ) {\r\n\r\n\t\tsuper.set( min, max );\r\n\t\tthis.matrix = matrix;\r\n\r\n\t}\r\n\r\n\tcopy( other ) {\r\n\r\n\t\tsuper.copy( other );\r\n\t\tthis.matrix.copy( other.matrix );\r\n\r\n\t}\r\n\r\n}\r\n\r\nOrientedBox.prototype.update = ( function () {\r\n\r\n\treturn function update() {\r\n\r\n\t\tconst matrix = this.matrix;\r\n\t\tconst min = this.min;\r\n\t\tconst max = this.max;\r\n\r\n\t\tconst points = this.points;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\r\n\t\t\t\t\tconst v = points[ i ];\r\n\t\t\t\t\tv.x = x ? max.x : min.x;\r\n\t\t\t\t\tv.y = y ? max.y : min.y;\r\n\t\t\t\t\tv.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tv.applyMatrix4( matrix );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst minVec = points[ 0 ];\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst index = 1 << i;\r\n\t\t\tconst pi = points[ index ];\r\n\r\n\t\t\taxis.subVectors( minVec, pi );\r\n\t\t\tsb.setFromPoints( axis, points );\r\n\r\n\t\t}\r\n\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\r\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\r\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\r\n\r\n\t\tthis.invMatrix.copy( this.matrix ).invert();\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsBox = ( function () {\r\n\r\n\tconst aabbBounds = new SeparatingAxisBounds();\r\n\treturn function intersectsBox( box ) {\r\n\r\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\r\n\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst alignedSatBounds = this.alignedSatBounds;\r\n\r\n\t\taabbBounds.min = min.x;\r\n\t\taabbBounds.max = max.x;\r\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.y;\r\n\t\taabbBounds.max = max.y;\r\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\taabbBounds.min = min.z;\r\n\t\taabbBounds.max = max.z;\r\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst axis = satAxes[ i ];\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\taabbBounds.setFromBox( axis, box );\r\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri = new SeparatingAxisTriangle();\r\n\tconst pointsArr = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( triangle ) {\r\n\r\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri.copy( triangle );\r\n\t\t\tsaTri.update();\r\n\t\t\ttriangle = saTri;\r\n\r\n\t\t} else if ( triangle.needsUpdate ) {\r\n\r\n\t\t\ttriangle.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds = this.satBounds;\r\n\t\tconst satAxes = this.satAxes;\r\n\r\n\t\tpointsArr[ 0 ] = triangle.a;\r\n\t\tpointsArr[ 1 ] = triangle.b;\r\n\t\tpointsArr[ 2 ] = triangle.c;\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds[ i ];\r\n\t\t\tconst sa = satAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst triSatBounds = triangle.satBounds;\r\n\t\tconst triSatAxes = triangle.satAxes;\r\n\t\tconst points = this.points;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = triSatBounds[ i ];\r\n\t\t\tconst sa = triSatAxes[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.closestPointToPoint = ( function () {\r\n\r\n\treturn function closestPointToPoint( point, target1 ) {\r\n\r\n\t\ttarget1\r\n\t\t\t.copy( point )\r\n\t\t\t.applyMatrix4( this.invMatrix )\r\n\t\t\t.clamp( this.min, this.max )\r\n\t\t\t.applyMatrix4( this.matrix );\r\n\r\n\t\treturn target1;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nOrientedBox.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nOrientedBox.prototype.distanceToBox = ( function () {\r\n\r\n\tconst xyzFields = [ 'x', 'y', 'z' ];\r\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\r\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\r\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.intersectsBox( box ) ) {\r\n\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tbox.getCenter( point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tconst threshold2 = threshold * threshold;\r\n\t\tconst min = box.min;\r\n\t\tconst max = box.max;\r\n\t\tconst points = this.points;\r\n\r\n\r\n\t\t// iterate over every edge and compare distances\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check over all these points\r\n\t\tfor ( let i = 0; i < 8; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tpoint2.copy( p ).clamp( min, max );\r\n\r\n\t\t\tconst dist = p.distanceToSquared( point2 );\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( p );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// generate and check all line segment distances\r\n\t\tlet count = 0;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\r\n\r\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\r\n\r\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\r\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\r\n\r\n\t\t\t\t\t// get obb line segments\r\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\r\n\t\t\t\t\tconst p1 = points[ index ];\r\n\t\t\t\t\tconst p2 = points[ index2 ];\r\n\t\t\t\t\tconst line1 = segments1[ count ];\r\n\t\t\t\t\tline1.set( p1, p2 );\r\n\r\n\r\n\t\t\t\t\t// get aabb line segments\r\n\t\t\t\t\tconst f1 = xyzFields[ i ];\r\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\r\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\r\n\t\t\t\t\tconst line2 = segments2[ count ];\r\n\t\t\t\t\tconst start = line2.start;\r\n\t\t\t\t\tconst end = line2.end;\r\n\r\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\r\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\r\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\r\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\r\n\r\n\t\t\t\t\tcount ++;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check all the other boxes point\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\r\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\r\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\r\n\r\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\r\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\r\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 12; i ++ ) {\r\n\r\n\t\t\tconst l1 = segments1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\r\n\r\n\t\t\t\tconst l2 = segments2[ i2 ];\r\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\r\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsRangeFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, c1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, c2 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, c2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\r\n\r\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\r\n\r\n\t\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\nconst triangle = new SeparatingAxisTriangle();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit( nodeIndices = null, terminationIndices = null ) {\n\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\n\n\t\t\tnodeIndices = new Set( nodeIndices );\n\n\t\t}\n\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\n\n\t\t\tterminationIndices = new Set( terminationIndices );\n\n\t\t}\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\t\t\t_traverse( 0 );\n\n\t\t}\n\n\t\tfunction _traverse( node32Index, force = false ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\tlet leftChange = false;\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( left );\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( left ) : true );\n\t\t\t\tif ( traverseLeft ) {\n\n\t\t\t\t\tleftChange = _traverse( left, forceLeft );\n\n\t\t\t\t}\n\n\t\t\t\tlet rightChange = false;\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( right );\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( right ) : true );\n\t\t\t\tif ( traverseRight ) {\n\n\t\t\t\t\trightChange = _traverse( right, forceRight );\n\n\t\t\t\t}\n\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\t\t\tclearBuffer();\n\n\t\t}\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\n\n\t\tconst geometry = this.geometry;\n\t\tif ( callbacks instanceof Function ) {\n\n\t\t\tif ( _intersectsTriangleFunc ) {\n\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\n\t\t\t\t// indices here.\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\n\n\t\t\t\t\tconst i3 = index * 3;\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\n\n\t\t\t\t};\n\n\n\t\t\t}\n\n\t\t\tcallbacks = {\n\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\n\t\t\t\tintersectsBounds: callbacks,\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\n\t\t\t\tintersectsRange: null,\n\n\t\t\t};\n\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.' );\n\n\t\t}\n\n\t\tlet {\n\t\t\tboundsTraverseOrder,\n\t\t\tintersectsBounds,\n\t\t\tintersectsRange,\n\t\t\tintersectsTriangle,\n\t\t} = callbacks;\n\n\t\tif ( intersectsRange && intersectsTriangle ) {\n\n\t\t\tconst originalIntersectsRange = intersectsRange;\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\n\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t} else if ( ! intersectsRange ) {\n\n\t\t\tif ( intersectsTriangle ) {\n\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t};\n\n\t\t\t} else {\n\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\n\n\t\t\t\t\treturn contained;\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t}\n\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttri2.update();\n\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tconst minThresholdSq = minThreshold * minThreshold;\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\n\t\tlet closestDistanceSq = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\n\t\t\t\t\treturn temp.distanceToSquared( point );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\n\n\t\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistanceSq = distSq;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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\ No newline at end of file
+{"version":3,"file":"index.umd.js","sources":["../src/Constants.js","../src/MeshBVHNode.js","../src/Utils/ArrayBoxUtilities.js","../src/buildFunctions.js","../src/Utils/SeparatingAxisBounds.js","../src/Utils/MathUtilities.js","../src/Utils/SeparatingAxisTriangle.js","../src/Utils/OrientedBox.js","../src/Utils/TriangleUtils.js","../src/Utils/ThreeIntersectionUtilities.js","../src/Utils/RayIntersectTriUtlities.js","../src/Utils/BufferNodeUtils.js","../src/castFunctions.js","../src/MeshBVH.js","../src/MeshBVHVisualizer.js","../src/Utils/Debug.js","../src/MeshBVHDebug.js","../src/index.js"],"sourcesContent":["// Split strategy constants\r\nexport const CENTER = 0;\r\nexport const AVERAGE = 1;\r\nexport const SAH = 2;\r\n\r\nexport const NOT_INTERSECTED = 0;\r\nexport const INTERSECTED = 1;\r\nexport const CONTAINED = 2;\r\n","\r\nexport default\r\nclass MeshBVHNode {\r\n\r\n\tconstructor() {\r\n\r\n\t\t// internal nodes have boundingData, left, right, and splitAxis\r\n\t\t// leaf nodes have offset and count (referring to primitives in the mesh geometry)\r\n\r\n\t}\r\n\r\n}\r\n","// Returns a Float32Array representing the bounds data for box.\r\nexport function boxToArray( bx ) {\r\n\r\n\tconst arr = new Float32Array( 6 );\r\n\r\n\tarr[ 0 ] = bx.min.x;\r\n\tarr[ 1 ] = bx.min.y;\r\n\tarr[ 2 ] = bx.min.z;\r\n\r\n\tarr[ 3 ] = bx.max.x;\r\n\tarr[ 4 ] = bx.max.y;\r\n\tarr[ 5 ] = bx.max.z;\r\n\r\n\treturn arr;\r\n\r\n}\r\n\r\nexport function arrayToBox( arr, target ) {\r\n\r\n\ttarget.min.x = arr[ 0 ];\r\n\ttarget.min.y = arr[ 1 ];\r\n\ttarget.min.z = arr[ 2 ];\r\n\r\n\ttarget.max.x = arr[ 3 ];\r\n\ttarget.max.y = arr[ 4 ];\r\n\ttarget.max.z = arr[ 5 ];\r\n\r\n\treturn target;\r\n\r\n}\r\n\r\nexport function getLongestEdgeIndex( bounds ) {\r\n\r\n\tlet splitDimIdx = - 1;\r\n\tlet splitDist = - Infinity;\r\n\r\n\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\tconst dist = bounds[ i + 3 ] - bounds[ i ];\r\n\t\tif ( dist > splitDist ) {\r\n\r\n\t\t\tsplitDist = dist;\r\n\t\t\tsplitDimIdx = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn splitDimIdx;\r\n\r\n}\r\n","import { Box3, BufferAttribute } from 'three';\r\nimport MeshBVHNode from './MeshBVHNode.js';\r\nimport { arrayToBox, boxToArray, getLongestEdgeIndex } from './Utils/ArrayBoxUtilities.js';\r\nimport { CENTER, AVERAGE, SAH } from './Constants.js';\r\n\r\n// https://en.wikipedia.org/wiki/Machine_epsilon#Values_for_standard_hardware_floating_point_arithmetics\r\nconst FLOAT32_EPSILON = Math.pow( 2, - 24 );\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\nconst boxTemp = new Box3();\r\n\r\nfunction ensureIndex( geo ) {\r\n\r\n\tif ( ! geo.index ) {\r\n\r\n\t\tconst vertexCount = geo.attributes.position.count;\r\n\t\tconst index = new ( vertexCount > 65535 ? Uint32Array : Uint16Array )( vertexCount );\r\n\t\tgeo.setIndex( new BufferAttribute( index, 1 ) );\r\n\r\n\t\tfor ( let i = 0; i < vertexCount; i ++ ) {\r\n\r\n\t\t\tindex[ i ] = i;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\n// Computes the set of { offset, count } ranges which need independent BVH roots. Each\r\n// region in the geometry index that belongs to a different set of material groups requires\r\n// a separate BVH root, so that triangles indices belonging to one group never get swapped\r\n// with triangle indices belongs to another group. For example, if the groups were like this:\r\n//\r\n// [-------------------------------------------------------------]\r\n// |__________________|\r\n//   g0 = [0, 20]  |______________________||_____________________|\r\n//                      g1 = [16, 40]           g2 = [41, 60]\r\n//\r\n// we would need four BVH roots: [0, 15], [16, 20], [21, 40], [41, 60].\r\nfunction getRootIndexRanges( geo ) {\r\n\r\n\tif ( ! geo.groups || ! geo.groups.length ) {\r\n\r\n\t\treturn [ { offset: 0, count: geo.index.count / 3 } ];\r\n\r\n\t}\r\n\r\n\tconst ranges = [];\r\n\tconst rangeBoundaries = new Set();\r\n\tfor ( const group of geo.groups ) {\r\n\r\n\t\trangeBoundaries.add( group.start );\r\n\t\trangeBoundaries.add( group.start + group.count );\r\n\r\n\t}\r\n\r\n\t// note that if you don't pass in a comparator, it sorts them lexicographically as strings :-(\r\n\tconst sortedBoundaries = Array.from( rangeBoundaries.values() ).sort( ( a, b ) => a - b );\r\n\tfor ( let i = 0; i < sortedBoundaries.length - 1; i ++ ) {\r\n\r\n\t\tconst start = sortedBoundaries[ i ], end = sortedBoundaries[ i + 1 ];\r\n\t\tranges.push( { offset: ( start / 3 ), count: ( end - start ) / 3 } );\r\n\r\n\t}\r\n\r\n\treturn ranges;\r\n\r\n}\r\n\r\n// computes the union of the bounds of all of the given triangles and puts the resulting box in target. If\r\n// centroidTarget is provided then a bounding box is computed for the centroids of the triangles, as well.\r\n// These are computed together to avoid redundant accesses to bounds array.\r\nfunction getBounds( triangleBounds, offset, count, target, centroidTarget = null ) {\r\n\r\n\tlet minx = Infinity;\r\n\tlet miny = Infinity;\r\n\tlet minz = Infinity;\r\n\tlet maxx = - Infinity;\r\n\tlet maxy = - Infinity;\r\n\tlet maxz = - Infinity;\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tconst includeCentroid = centroidTarget !== null;\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tconst hx = triangleBounds[ i + 1 ];\r\n\t\tconst lx = cx - hx;\r\n\t\tconst rx = cx + hx;\r\n\t\tif ( lx < minx ) minx = lx;\r\n\t\tif ( rx > maxx ) maxx = rx;\r\n\t\tif ( includeCentroid && cx < cminx ) cminx = cx;\r\n\t\tif ( includeCentroid && cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tconst hy = triangleBounds[ i + 3 ];\r\n\t\tconst ly = cy - hy;\r\n\t\tconst ry = cy + hy;\r\n\t\tif ( ly < miny ) miny = ly;\r\n\t\tif ( ry > maxy ) maxy = ry;\r\n\t\tif ( includeCentroid && cy < cminy ) cminy = cy;\r\n\t\tif ( includeCentroid && cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tconst hz = triangleBounds[ i + 5 ];\r\n\t\tconst lz = cz - hz;\r\n\t\tconst rz = cz + hz;\r\n\t\tif ( lz < minz ) minz = lz;\r\n\t\tif ( rz > maxz ) maxz = rz;\r\n\t\tif ( includeCentroid && cz < cminz ) cminz = cz;\r\n\t\tif ( includeCentroid && cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\ttarget[ 0 ] = minx;\r\n\ttarget[ 1 ] = miny;\r\n\ttarget[ 2 ] = minz;\r\n\r\n\ttarget[ 3 ] = maxx;\r\n\ttarget[ 4 ] = maxy;\r\n\ttarget[ 5 ] = maxz;\r\n\r\n\tif ( includeCentroid ) {\r\n\r\n\t\tcentroidTarget[ 0 ] = cminx;\r\n\t\tcentroidTarget[ 1 ] = cminy;\r\n\t\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\t\tcentroidTarget[ 3 ] = cmaxx;\r\n\t\tcentroidTarget[ 4 ] = cmaxy;\r\n\t\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n\t}\r\n\r\n}\r\n\r\n// A stand alone function for retrieving the centroid bounds.\r\nfunction getCentroidBounds( triangleBounds, offset, count, centroidTarget ) {\r\n\r\n\tlet cminx = Infinity;\r\n\tlet cminy = Infinity;\r\n\tlet cminz = Infinity;\r\n\tlet cmaxx = - Infinity;\r\n\tlet cmaxy = - Infinity;\r\n\tlet cmaxz = - Infinity;\r\n\r\n\tfor ( let i = offset * 6, end = ( offset + count ) * 6; i < end; i += 6 ) {\r\n\r\n\t\tconst cx = triangleBounds[ i + 0 ];\r\n\t\tif ( cx < cminx ) cminx = cx;\r\n\t\tif ( cx > cmaxx ) cmaxx = cx;\r\n\r\n\t\tconst cy = triangleBounds[ i + 2 ];\r\n\t\tif ( cy < cminy ) cminy = cy;\r\n\t\tif ( cy > cmaxy ) cmaxy = cy;\r\n\r\n\t\tconst cz = triangleBounds[ i + 4 ];\r\n\t\tif ( cz < cminz ) cminz = cz;\r\n\t\tif ( cz > cmaxz ) cmaxz = cz;\r\n\r\n\t}\r\n\r\n\tcentroidTarget[ 0 ] = cminx;\r\n\tcentroidTarget[ 1 ] = cminy;\r\n\tcentroidTarget[ 2 ] = cminz;\r\n\r\n\tcentroidTarget[ 3 ] = cmaxx;\r\n\tcentroidTarget[ 4 ] = cmaxy;\r\n\tcentroidTarget[ 5 ] = cmaxz;\r\n\r\n}\r\n\r\n\r\n// reorders `tris` such that for `count` elements after `offset`, elements on the left side of the split\r\n// will be on the left and elements on the right side of the split will be on the right. returns the index\r\n// of the first element on the right side, or offset + count if there are no elements on the right side.\r\nfunction partition( index, triangleBounds, sahPlanes, offset, count, split ) {\r\n\r\n\tlet left = offset;\r\n\tlet right = offset + count - 1;\r\n\tconst pos = split.pos;\r\n\tconst axisOffset = split.axis * 2;\r\n\r\n\t// hoare partitioning, see e.g. https://en.wikipedia.org/wiki/Quicksort#Hoare_partition_scheme\r\n\twhile ( true ) {\r\n\r\n\t\twhile ( left <= right && triangleBounds[ left * 6 + axisOffset ] < pos ) {\r\n\r\n\t\t\tleft ++;\r\n\r\n\t\t}\r\n\r\n\t\twhile ( left <= right && triangleBounds[ right * 6 + axisOffset ] >= pos ) {\r\n\r\n\t\t\tright --;\r\n\r\n\t\t}\r\n\r\n\t\tif ( left < right ) {\r\n\r\n\t\t\t// we need to swap all of the information associated with the triangles at index\r\n\t\t\t// left and right; that's the verts in the geometry index, the bounds,\r\n\t\t\t// and perhaps the SAH planes\r\n\r\n\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\tlet t0 = index[ left * 3 + i ];\r\n\t\t\t\tindex[ left * 3 + i ] = index[ right * 3 + i ];\r\n\t\t\t\tindex[ right * 3 + i ] = t0;\r\n\r\n\t\t\t\tlet t1 = triangleBounds[ left * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 0 ] = triangleBounds[ right * 6 + i * 2 + 0 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 0 ] = t1;\r\n\r\n\t\t\t\tlet t2 = triangleBounds[ left * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ left * 6 + i * 2 + 1 ] = triangleBounds[ right * 6 + i * 2 + 1 ];\r\n\t\t\t\ttriangleBounds[ right * 6 + i * 2 + 1 ] = t2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( sahPlanes ) {\r\n\r\n\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t\t\tlet t = sahPlanes[ i ][ left ];\r\n\t\t\t\t\tsahPlanes[ i ][ left ] = sahPlanes[ i ][ right ];\r\n\t\t\t\t\tsahPlanes[ i ][ right ] = t;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tleft ++;\r\n\t\t\tright --;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn left;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction getOptimalSplit( nodeBoundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy ) {\r\n\r\n\tlet axis = - 1;\r\n\tlet pos = 0;\r\n\r\n\t// Center\r\n\tif ( strategy === CENTER ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( centroidBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = ( centroidBoundingData[ axis ] + centroidBoundingData[ axis + 3 ] ) / 2;\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === AVERAGE ) {\r\n\r\n\t\taxis = getLongestEdgeIndex( nodeBoundingData );\r\n\t\tif ( axis !== - 1 ) {\r\n\r\n\t\t\tpos = getAverage( triangleBounds, offset, count, axis );\r\n\r\n\t\t}\r\n\r\n\t} else if ( strategy === SAH ) {\r\n\r\n\t\t// Surface Area Heuristic\r\n\t\t// In order to make this code more terse, the x, y, and z\r\n\t\t// variables of various structures have been stuffed into\r\n\t\t// 0, 1, and 2 array indices so they can be easily computed\r\n\t\t// and accessed within array iteration\r\n\r\n\t\t// Cost values defineed for operations. We're using bounds for traversal, so\r\n\t\t// the cost of traversing one more layer is more than intersecting a triangle.\r\n\t\tconst TRAVERSAL_COST = 3;\r\n\t\tconst INTERSECTION_COST = 1;\r\n\t\tconst bb = arrayToBox( nodeBoundingData, boxTemp );\r\n\r\n\t\t// Define the width, height, and depth of the bounds as a box\r\n\t\tconst dim = [\r\n\t\t\tbb.max.x - bb.min.x,\r\n\t\t\tbb.max.y - bb.min.y,\r\n\t\t\tbb.max.z - bb.min.z\r\n\t\t];\r\n\t\tconst sa = 2 * ( dim[ 0 ] * dim[ 1 ] + dim[ 0 ] * dim[ 2 ] + dim[ 1 ] * dim[ 2 ] );\r\n\r\n\t\t// Get the precalculated planes based for the triangles we're\r\n\t\t// testing here\r\n\t\tconst filteredLists = [[], [], []];\r\n\t\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\t\tfor ( let v = 0; v < 3; v ++ ) {\r\n\r\n\t\t\t\tfilteredLists[ v ].push( sahPlanes[ v ][ i ] );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfilteredLists.forEach( planes => planes.sort( ( a, b ) => a.p - b.p ) );\r\n\r\n\t\t// this bounds surface area, left bound SA, left triangles, right bound SA, right triangles\r\n\t\tconst getCost = ( sa, sal, nl, sar, nr ) =>\r\n\t\t\t  TRAVERSAL_COST + INTERSECTION_COST * ( ( sal / sa ) * nl + ( sar / sa ) * nr );\r\n\r\n\t\t// the cost of _not_ splitting into smaller bounds\r\n\t\tconst noSplitCost = INTERSECTION_COST * count;\r\n\r\n\t\taxis = - 1;\r\n\t\tlet bestCost = noSplitCost;\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\t// o1 and o2 represent the _other_ two axes in the\r\n\t\t\t// the space. So if we're checking the x (0) dimension,\r\n\t\t\t// then o1 and o2 would be y and z (1 and 2)\r\n\t\t\tconst o1 = ( i + 1 ) % 3;\r\n\t\t\tconst o2 = ( i + 2 ) % 3;\r\n\r\n\t\t\tconst bmin = bb.min[ xyzFields[ i ] ];\r\n\t\t\tconst bmax = bb.max[ xyzFields[ i ] ];\r\n\t\t\tconst planes = filteredLists[ i ];\r\n\r\n\t\t\t// The number of left and right triangles on either side\r\n\t\t\t// given the current split\r\n\t\t\tlet nl = 0;\r\n\t\t\tlet nr = count;\r\n\t\t\tfor ( let p = 0; p < planes.length; p ++ ) {\r\n\r\n\t\t\t\tconst pinfo = planes[ p ];\r\n\r\n\t\t\t\t// As the plane moves, we have to increment or decrement the\r\n\t\t\t\t// number of triangles on either side of the plane\r\n\t\t\t\tnl ++;\r\n\t\t\t\tnr --;\r\n\r\n\t\t\t\t// the distance from the plane to the edge of the broader bounds\r\n\t\t\t\tconst ldim = pinfo.p - bmin;\r\n\t\t\t\tconst rdim = bmax - pinfo.p;\r\n\r\n\t\t\t\t// same for the other two dimensions\r\n\t\t\t\tlet ldimo1 = dim[ o1 ], rdimo1 = dim[ o1 ];\r\n\t\t\t\tlet ldimo2 = dim[ o2 ], rdimo2 = dim[ o2 ];\r\n\r\n\t\t\t\t/*\r\n\t\t\t\t// compute the other bounding planes for the box\r\n\t\t\t\t// if only the current triangles are considered to\r\n\t\t\t\t// be in the box\r\n\t\t\t\t// This is really slow and probably not really worth it\r\n\t\t\t\tconst o1planes = sahPlanes[o1];\r\n\t\t\t\tconst o2planes = sahPlanes[o2];\r\n\t\t\t\tlet lmin = Infinity, lmax = -Infinity;\r\n\t\t\t\tlet rmin = Infinity, rmax = -Infinity;\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o1planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o1planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo1 = Math.min(lmax - lmin, ldimo1);\r\n\t\t\t\trdimo1 = Math.min(rmax - rmin, rdimo1);\r\n\r\n\t\t\t\tplanes.forEach((p, i) => {\r\n\t\t\t\tconst tri2 = p.tri * 2;\r\n\t\t\t\tconst inf1 = o2planes[tri2 + 0];\r\n\t\t\t\tconst inf2 = o2planes[tri2 + 1];\r\n\t\t\t\tif (i <= nl) {\r\n\t\t\t\tlmin = Math.min(inf1.p, inf2.p, lmin);\r\n\t\t\t\tlmax = Math.max(inf1.p, inf2.p, lmax);\r\n\t\t\t\t}\r\n\t\t\t\tif (i >= nr) {\r\n\t\t\t\trmin = Math.min(inf1.p, inf2.p, rmin);\r\n\t\t\t\trmax = Math.max(inf1.p, inf2.p, rmax);\r\n\t\t\t\t}\r\n\t\t\t\t})\r\n\t\t\t\tldimo2 = Math.min(lmax - lmin, ldimo2);\r\n\t\t\t\trdimo2 = Math.min(rmax - rmin, rdimo2);\r\n\t\t\t\t*/\r\n\r\n\t\t\t\t// surface areas and cost\r\n\t\t\t\tconst sal = 2 * ( ldimo1 * ldimo2 + ldimo1 * ldim + ldimo2 * ldim );\r\n\t\t\t\tconst sar = 2 * ( rdimo1 * rdimo2 + rdimo1 * rdim + rdimo2 * rdim );\r\n\t\t\t\tconst cost = getCost( sa, sal, nl, sar, nr );\r\n\r\n\t\t\t\tif ( cost < bestCost ) {\r\n\r\n\t\t\t\t\taxis = i;\r\n\t\t\t\t\tpos = pinfo.p;\r\n\t\t\t\t\tbestCost = cost;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn { axis, pos };\r\n\r\n}\r\n\r\n// returns the average coordinate on the specified axis of the all the provided triangles\r\nfunction getAverage( triangleBounds, offset, count, axis ) {\r\n\r\n\tlet avg = 0;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tavg += triangleBounds[ i * 6 + axis * 2 ];\r\n\r\n\t}\r\n\r\n\treturn avg / count;\r\n\r\n}\r\n\r\nfunction computeSAHPlanes( triangleBounds ) {\r\n\r\n\tconst triCount = triangleBounds.length / 6;\r\n\tconst sahPlanes = [ new Array( triCount ), new Array( triCount ), new Array( triCount ) ];\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tsahPlanes[ el ][ tri ] = { p: triangleBounds[ tri * 6 + el * 2 ], tri };\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn sahPlanes;\r\n\r\n}\r\n\r\n// precomputes the bounding box for each triangle; required for quickly calculating tree splits.\r\n// result is an array of size tris.length * 6 where triangle i maps to a\r\n// [x_center, x_delta, y_center, y_delta, z_center, z_delta] tuple starting at index i * 6,\r\n// representing the center and half-extent in each dimension of triangle i\r\nfunction computeTriangleBounds( geo ) {\r\n\r\n\tconst verts = geo.attributes.position.array;\r\n\tconst index = geo.index.array;\r\n\tconst triCount = index.length / 3;\r\n\tconst triangleBounds = new Float32Array( triCount * 6 );\r\n\r\n\tfor ( let tri = 0; tri < triCount; tri ++ ) {\r\n\r\n\t\tconst tri3 = tri * 3;\r\n\t\tconst tri6 = tri * 6;\r\n\t\tconst ai = index[ tri3 + 0 ] * 3;\r\n\t\tconst bi = index[ tri3 + 1 ] * 3;\r\n\t\tconst ci = index[ tri3 + 2 ] * 3;\r\n\r\n\t\tfor ( let el = 0; el < 3; el ++ ) {\r\n\r\n\t\t\tconst a = verts[ ai + el ];\r\n\t\t\tconst b = verts[ bi + el ];\r\n\t\t\tconst c = verts[ ci + el ];\r\n\r\n\t\t\tlet min = a;\r\n\t\t\tif ( b < min ) min = b;\r\n\t\t\tif ( c < min ) min = c;\r\n\r\n\t\t\tlet max = a;\r\n\t\t\tif ( b > max ) max = b;\r\n\t\t\tif ( c > max ) max = c;\r\n\r\n\t\t\t// Increase the bounds size by float32 epsilon to avoid precision errors when\r\n\t\t\t// converting to 32 bit float. Scale the epsilon by the size of the numbers being\r\n\t\t\t// worked with.\r\n\t\t\tconst halfExtents = ( max - min ) / 2;\r\n\t\t\tconst el2 = el * 2;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 0 ] = min + halfExtents;\r\n\t\t\ttriangleBounds[ tri6 + el2 + 1 ] = halfExtents + ( Math.abs( min ) + halfExtents ) * FLOAT32_EPSILON;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn triangleBounds;\r\n\r\n}\r\n\r\nexport function buildTree( geo, options ) {\r\n\r\n\t// either recursively splits the given node, creating left and right subtrees for it, or makes it a leaf node,\r\n\t// recording the offset and count of its triangles and writing them into the reordered geometry index.\r\n\tfunction splitNode( node, offset, count, centroidBoundingData = null, depth = 0 ) {\r\n\r\n\t\tif ( ! reachedMaxDepth && depth >= maxDepth ) {\r\n\r\n\t\t\treachedMaxDepth = true;\r\n\t\t\tif ( verbose ) {\r\n\r\n\t\t\t\tconsole.warn( `MeshBVH: Max depth of ${ maxDepth } reached when generating BVH. Consider increasing maxDepth.` );\r\n\t\t\t\tconsole.warn( this, geo );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// early out if we've met our capacity\r\n\t\tif ( count <= maxLeafTris || depth >= maxDepth ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\t// Find where to split the volume\r\n\t\tconst split = getOptimalSplit( node.boundingData, centroidBoundingData, triangleBounds, sahPlanes, offset, count, strategy );\r\n\t\tif ( split.axis === - 1 ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\t\t\treturn node;\r\n\r\n\t\t}\r\n\r\n\t\tconst splitOffset = partition( indexArray, triangleBounds, sahPlanes, offset, count, split );\r\n\r\n\t\t// create the two new child nodes\r\n\t\tif ( splitOffset === offset || splitOffset === offset + count ) {\r\n\r\n\t\t\tnode.offset = offset;\r\n\t\t\tnode.count = count;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tnode.splitAxis = split.axis;\r\n\r\n\t\t\t// create the left child and compute its bounding box\r\n\t\t\tconst left = new MeshBVHNode();\r\n\t\t\tconst lstart = offset;\r\n\t\t\tconst lcount = splitOffset - offset;\r\n\t\t\tnode.left = left;\r\n\t\t\tleft.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, lstart, lcount, left.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( left, lstart, lcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t\t// repeat for right\r\n\t\t\tconst right = new MeshBVHNode();\r\n\t\t\tconst rstart = splitOffset;\r\n\t\t\tconst rcount = count - lcount;\r\n\t\t\tnode.right = right;\r\n\t\t\tright.boundingData = new Float32Array( 6 );\r\n\r\n\t\t\tgetBounds( triangleBounds, rstart, rcount, right.boundingData, cacheCentroidBoundingData );\r\n\t\t\tsplitNode( right, rstart, rcount, cacheCentroidBoundingData, depth + 1 );\r\n\r\n\t\t}\r\n\r\n\t\treturn node;\r\n\r\n\t}\r\n\r\n\tensureIndex( geo );\r\n\r\n\tconst cacheCentroidBoundingData = new Float32Array( 6 );\r\n\tconst triangleBounds = computeTriangleBounds( geo );\r\n\tconst sahPlanes = options.strategy === SAH ? computeSAHPlanes( triangleBounds ) : null;\r\n\tconst indexArray = geo.index.array;\r\n\tconst maxDepth = options.maxDepth;\r\n\tconst verbose = options.verbose;\r\n\tconst maxLeafTris = options.maxLeafTris;\r\n\tconst strategy = options.strategy;\r\n\tlet reachedMaxDepth = false;\r\n\r\n\tconst roots = [];\r\n\tconst ranges = getRootIndexRanges( geo );\r\n\r\n\tif ( ranges.length === 1 ) {\r\n\r\n\t\tconst root = new MeshBVHNode();\r\n\t\tconst range = ranges[ 0 ];\r\n\r\n\t\tif ( geo.boundingBox != null ) {\r\n\r\n\t\t\troot.boundingData = boxToArray( geo.boundingBox );\r\n\t\t\tgetCentroidBounds( triangleBounds, range.offset, range.count, cacheCentroidBoundingData );\r\n\r\n\t\t} else {\r\n\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t}\r\n\r\n\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\troots.push( root );\r\n\r\n\t} else {\r\n\r\n\t\tfor ( let range of ranges ) {\r\n\r\n\t\t\tconst root = new MeshBVHNode();\r\n\t\t\troot.boundingData = new Float32Array( 6 );\r\n\t\t\tgetBounds( triangleBounds, range.offset, range.count, root.boundingData, cacheCentroidBoundingData );\r\n\r\n\t\t\tsplitNode( root, range.offset, range.count, cacheCentroidBoundingData );\r\n\t\t\troots.push( root );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn roots;\r\n\r\n}\r\n\r\nexport const BYTES_PER_NODE = 6 * 4 + 4 + 4;\r\n\r\nexport const IS_LEAFNODE_FLAG = 0xFFFF;\r\n\r\nexport function buildPackedTree( geo, options ) {\r\n\r\n\t// boundingData  \t\t\t\t: 6 float32\r\n\t// right / offset \t\t\t\t: 1 uint32\r\n\t// splitAxis / isLeaf + count \t: 1 uint32 / 2 uint16\r\n\tconst roots = buildTree( geo, options );\r\n\r\n\tlet float32Array;\r\n\tlet uint32Array;\r\n\tlet uint16Array;\r\n\tconst packedRoots = [];\r\n\tfor ( let i = 0; i < roots.length; i ++ ) {\r\n\r\n\t\tconst root = roots[ i ];\r\n\t\tlet nodeCount = countNodes( root );\r\n\r\n\t\tconst buffer = new ArrayBuffer( BYTES_PER_NODE * nodeCount );\r\n\t\tfloat32Array = new Float32Array( buffer );\r\n\t\tuint32Array = new Uint32Array( buffer );\r\n\t\tuint16Array = new Uint16Array( buffer );\r\n\t\tpopulateBuffer( 0, root );\r\n\t\tpackedRoots.push( buffer );\r\n\r\n\t}\r\n\r\n\treturn packedRoots;\r\n\r\n\tfunction countNodes( node ) {\r\n\r\n\t\tif ( node.count ) {\r\n\r\n\t\t\treturn 1;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn 1 + countNodes( node.left ) + countNodes( node.right );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tfunction populateBuffer( byteOffset, node ) {\r\n\r\n\t\tconst stride4Offset = byteOffset / 4;\r\n\t\tconst stride2Offset = byteOffset / 2;\r\n\t\tconst isLeaf = ! ! node.count;\r\n\t\tconst boundingData = node.boundingData;\r\n\t\tfor ( let i = 0; i < 6; i ++ ) {\r\n\r\n\t\t\tfloat32Array[ stride4Offset + i ] = boundingData[ i ];\r\n\r\n\t\t}\r\n\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = node.offset;\r\n\t\t\tconst count = node.count;\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = offset;\r\n\t\t\tuint16Array[ stride2Offset + 14 ] = count;\r\n\t\t\tuint16Array[ stride2Offset + 15 ] = IS_LEAFNODE_FLAG;\r\n\t\t\treturn byteOffset + BYTES_PER_NODE;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = node.left;\r\n\t\t\tconst right = node.right;\r\n\t\t\tconst splitAxis = node.splitAxis;\r\n\r\n\t\t\tlet nextUnusedPointer;\r\n\t\t\tnextUnusedPointer = populateBuffer( byteOffset + BYTES_PER_NODE, left );\r\n\r\n\t\t\tif ( ( nextUnusedPointer / 4 ) > Math.pow( 2, 32 ) ) {\r\n\r\n\t\t\t\tthrow new Error( 'MeshBVH: Cannot store child pointer greater than 32 bits.' );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tuint32Array[ stride4Offset + 6 ] = nextUnusedPointer / 4;\r\n\t\t\tnextUnusedPointer = populateBuffer( nextUnusedPointer, right );\r\n\r\n\t\t\tuint32Array[ stride4Offset + 7 ] = splitAxis;\r\n\t\t\treturn nextUnusedPointer;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3 } from 'three';\r\n\r\nexport class SeparatingAxisBounds {\r\n\r\n\tconstructor() {\r\n\r\n\t\tthis.min = Infinity;\r\n\t\tthis.max = - Infinity;\r\n\r\n\t}\r\n\r\n\tsetFromPointsField( points, field ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = p[ field ];\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\r\n\t}\r\n\r\n\tsetFromPoints( axis, points ) {\r\n\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let i = 0, l = points.length; i < l; i ++ ) {\r\n\r\n\t\t\tconst p = points[ i ];\r\n\t\t\tconst val = axis.dot( p );\r\n\t\t\tmin = Math.min( val, min );\r\n\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t}\r\n\r\n\tisSeparated( other ) {\r\n\r\n\t\treturn this.min > other.max || other.min > this.max;\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisBounds.prototype.setFromBox = ( function () {\r\n\r\n\tconst p = new Vector3();\r\n\treturn function setFromBox( axis, box ) {\r\n\r\n\t\tconst boxMin = box.min;\r\n\t\tconst boxMax = box.max;\r\n\t\tlet min = Infinity;\r\n\t\tlet max = - Infinity;\r\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\r\n\r\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\r\n\r\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\r\n\r\n\t\t\t\t\tp.x = boxMin.x * x + boxMax.x * ( 1 - x );\r\n\t\t\t\t\tp.y = boxMin.y * y + boxMax.y * ( 1 - y );\r\n\t\t\t\t\tp.z = boxMin.z * z + boxMax.z * ( 1 - z );\r\n\r\n\t\t\t\t\tconst val = axis.dot( p );\r\n\t\t\t\t\tmin = Math.min( val, min );\r\n\t\t\t\t\tmax = Math.max( val, max );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tthis.min = min;\r\n\t\tthis.max = max;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const areIntersecting = ( function () {\r\n\r\n\tconst cacheSatBounds = new SeparatingAxisBounds();\r\n\treturn function areIntersecting( shape1, shape2 ) {\r\n\r\n\t\tconst points1 = shape1.points;\r\n\t\tconst satAxes1 = shape1.satAxes;\r\n\t\tconst satBounds1 = shape1.satBounds;\r\n\r\n\t\tconst points2 = shape2.points;\r\n\t\tconst satAxes2 = shape2.satAxes;\r\n\t\tconst satBounds2 = shape2.satBounds;\r\n\r\n\t\t// check axes of the first shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points2 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check axes of the second shape\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcacheSatBounds.setFromPoints( sa, points1 );\r\n\t\t\tif ( sb.isSeparated( cacheSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n","import { Vector3, Vector2, Plane, Line3 } from 'three';\nexport const closestPointLineToLine = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/Line.cpp#L56\n\tconst dir1 = new Vector3();\n\tconst dir2 = new Vector3();\n\tconst v02 = new Vector3();\n\treturn function closestPointLineToLine( l1, l2, result ) {\n\n\t\tconst v0 = l1.start;\n\t\tconst v10 = dir1;\n\t\tconst v2 = l2.start;\n\t\tconst v32 = dir2;\n\n\t\tv02.subVectors( v0, v2 );\n\t\tdir1.subVectors( l1.end, l2.start );\n\t\tdir2.subVectors( l2.end, l2.start );\n\n\t\t// float d0232 = v02.Dot(v32);\n\t\tconst d0232 = v02.dot( v32 );\n\n\t\t// float d3210 = v32.Dot(v10);\n\t\tconst d3210 = v32.dot( v10 );\n\n\t\t// float d3232 = v32.Dot(v32);\n\t\tconst d3232 = v32.dot( v32 );\n\n\t\t// float d0210 = v02.Dot(v10);\n\t\tconst d0210 = v02.dot( v10 );\n\n\t\t// float d1010 = v10.Dot(v10);\n\t\tconst d1010 = v10.dot( v10 );\n\n\t\t// float denom = d1010*d3232 - d3210*d3210;\n\t\tconst denom = d1010 * d3232 - d3210 * d3210;\n\n\t\tlet d, d2;\n\t\tif ( denom !== 0 ) {\n\n\t\t\td = ( d0232 * d3210 - d0210 * d3232 ) / denom;\n\n\t\t} else {\n\n\t\t\td = 0;\n\n\t\t}\n\n\t\td2 = ( d0232 + d * d3210 ) / d3232;\n\n\t\tresult.x = d;\n\t\tresult.y = d2;\n\n\t};\n\n} )();\n\nexport const closestPointsSegmentToSegment = ( function () {\n\n\t// https://github.com/juj/MathGeoLib/blob/master/src/Geometry/LineSegment.cpp#L187\n\tconst paramResult = new Vector2();\n\tconst temp1 = new Vector3();\n\tconst temp2 = new Vector3();\n\treturn function closestPointsSegmentToSegment( l1, l2, target1, target2 ) {\n\n\t\tclosestPointLineToLine( l1, l2, paramResult );\n\n\t\tlet d = paramResult.x;\n\t\tlet d2 = paramResult.y;\n\t\tif ( d >= 0 && d <= 1 && d2 >= 0 && d2 <= 1 ) {\n\n\t\t\tl1.at( d, target1 );\n\t\t\tl2.at( d2, target2 );\n\n\t\t\treturn;\n\n\t\t} else if ( d >= 0 && d <= 1 ) {\n\n\t\t\t// Only d2 is out of bounds.\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tl2.at( 0, target2 );\n\n\t\t\t} else {\n\n\t\t\t\tl2.at( 1, target2 );\n\n\t\t\t}\n\n\t\t\tl1.closestPointToPoint( target2, true, target1 );\n\t\t\treturn;\n\n\t\t} else if ( d2 >= 0 && d2 <= 1 ) {\n\n\t\t\t// Only d is out of bounds.\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tl1.at( 0, target1 );\n\n\t\t\t} else {\n\n\t\t\t\tl1.at( 1, target1 );\n\n\t\t\t}\n\n\t\t\tl2.closestPointToPoint( target1, true, target2 );\n\t\t\treturn;\n\n\t\t} else {\n\n\t\t\t// Both u and u2 are out of bounds.\n\t\t\tlet p;\n\t\t\tif ( d < 0 ) {\n\n\t\t\t\tp = l1.start;\n\n\t\t\t} else {\n\n\t\t\t\tp = l1.end;\n\n\t\t\t}\n\n\t\t\tlet p2;\n\t\t\tif ( d2 < 0 ) {\n\n\t\t\t\tp2 = l2.start;\n\n\t\t\t} else {\n\n\t\t\t\tp2 = l2.end;\n\n\t\t\t}\n\n\t\t\tconst closestPoint = temp1;\n\t\t\tconst closestPoint2 = temp2;\n\t\t\tl1.closestPointToPoint( p2, true, temp1 );\n\t\t\tl2.closestPointToPoint( p, true, temp2 );\n\n\t\t\tif ( closestPoint.distanceToSquared( p2 ) <= closestPoint2.distanceToSquared( p ) ) {\n\n\t\t\t\ttarget1.copy( closestPoint );\n\t\t\t\ttarget2.copy( p2 );\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\ttarget1.copy( p );\n\t\t\t\ttarget2.copy( closestPoint2 );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n} )();\n\n\nexport const sphereIntersectTriangle = ( function () {\n\n\t// https://stackoverflow.com/questions/34043955/detect-collision-between-sphere-and-triangle-in-three-js\n\tconst closestPointTemp = new Vector3();\n\tconst projectedPointTemp = new Vector3();\n\tconst planeTemp = new Plane();\n\tconst lineTemp = new Line3();\n\treturn function sphereIntersectTriangle( sphere, triangle ) {\n\n\t\tconst { radius, center } = sphere;\n\t\tconst { a, b, c } = triangle;\n\n\t\t// phase 1\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = b;\n\t\tconst closestPoint1 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint1.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = a;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint2 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint2.distanceTo( center ) <= radius ) return true;\n\n\t\tlineTemp.start = b;\n\t\tlineTemp.end = c;\n\t\tconst closestPoint3 = lineTemp.closestPointToPoint( center, true, closestPointTemp );\n\t\tif ( closestPoint3.distanceTo( center ) <= radius ) return true;\n\n\t\t// phase 2\n\t\tconst plane = triangle.getPlane( planeTemp );\n\t\tconst dp = Math.abs( plane.distanceToPoint( center ) );\n\t\tif ( dp <= radius ) {\n\n\t\t\tconst pp = plane.projectPoint( center, projectedPointTemp );\n\t\t\tconst cp = triangle.containsPoint( pp );\n\t\t\tif ( cp ) return true;\n\n\t\t}\n\n\t\treturn false;\n\n\t};\n\n} )();\n","import { Triangle, Vector3, Line3, Sphere } from 'three';\r\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\r\nimport { closestPointsSegmentToSegment, sphereIntersectTriangle } from './MathUtilities.js';\r\n\r\nexport class SeparatingAxisTriangle extends Triangle {\r\n\r\n\tconstructor( ...args ) {\r\n\r\n\t\tsuper( ...args );\r\n\r\n\t\tthis.isSeparatingAxisTriangle = true;\r\n\t\tthis.satAxes = new Array( 4 ).fill().map( () => new Vector3() );\r\n\t\tthis.satBounds = new Array( 4 ).fill().map( () => new SeparatingAxisBounds() );\r\n\t\tthis.points = [ this.a, this.b, this.c ];\r\n\t\tthis.sphere = new Sphere();\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t}\r\n\r\n\tintersectsSphere( sphere ) {\r\n\r\n\t\treturn sphereIntersectTriangle( sphere, this );\r\n\r\n\t}\r\n\r\n}\r\n\r\nSeparatingAxisTriangle.prototype.update = ( function () {\r\n\r\n\tconst arr = new Array( 3 );\r\n\treturn function update() {\r\n\r\n\t\tconst a = this.a;\r\n\t\tconst b = this.b;\r\n\t\tconst c = this.c;\r\n\r\n\t\tarr[ 0 ] = this.a;\r\n\t\tarr[ 1 ] = this.b;\r\n\t\tarr[ 2 ] = this.c;\r\n\r\n\t\tconst satAxes = this.satAxes;\r\n\t\tconst satBounds = this.satBounds;\r\n\r\n\t\tconst axis0 = satAxes[ 0 ];\r\n\t\tconst sab0 = satBounds[ 0 ];\r\n\t\tthis.getNormal( axis0 );\r\n\t\tsab0.setFromPoints( axis0, arr );\r\n\r\n\t\tconst axis1 = satAxes[ 1 ];\r\n\t\tconst sab1 = satBounds[ 1 ];\r\n\t\taxis1.subVectors( a, b );\r\n\t\tsab1.setFromPoints( axis1, arr );\r\n\r\n\t\tconst axis2 = satAxes[ 2 ];\r\n\t\tconst sab2 = satBounds[ 2 ];\r\n\t\taxis2.subVectors( b, c );\r\n\t\tsab2.setFromPoints( axis2, arr );\r\n\r\n\t\tconst axis3 = satAxes[ 3 ];\r\n\t\tconst sab3 = satBounds[ 3 ];\r\n\t\taxis3.subVectors( c, a );\r\n\t\tsab3.setFromPoints( axis3, arr );\r\n\r\n\t\tthis.sphere.setFromPoints( this.points );\r\n\t\tthis.needsUpdate = false;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.closestPointToSegment = ( function () {\r\n\r\n\tconst point1 = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst edge = new Line3();\r\n\r\n\treturn function distanceToSegment( segment, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tconst { start, end } = segment;\r\n\t\tconst points = this.points;\r\n\t\tlet distSq;\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check the triangle edges\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst nexti = ( i + 1 ) % 3;\r\n\t\t\tedge.start.copy( points[ i ] );\r\n\t\t\tedge.end.copy( points[ nexti ] );\r\n\r\n\t\t\tclosestPointsSegmentToSegment( edge, segment, point1, point2 );\r\n\r\n\t\t\tdistSq = point1.distanceToSquared( point2 );\r\n\t\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = distSq;\r\n\t\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// check end points\r\n\t\tthis.closestPointToPoint( start, point1 );\r\n\t\tdistSq = start.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( start );\r\n\r\n\t\t}\r\n\r\n\t\tthis.closestPointToPoint( end, point1 );\r\n\t\tdistSq = end.distanceToSquared( point1 );\r\n\t\tif ( distSq < closestDistanceSq ) {\r\n\r\n\t\t\tclosestDistanceSq = distSq;\r\n\t\t\tif ( target1 ) target1.copy( point1 );\r\n\t\t\tif ( target2 ) target2.copy( end );\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nSeparatingAxisTriangle.prototype.intersectsTriangle = ( function () {\r\n\r\n\tconst saTri2 = new SeparatingAxisTriangle();\r\n\tconst arr1 = new Array( 3 );\r\n\tconst arr2 = new Array( 3 );\r\n\tconst cachedSatBounds = new SeparatingAxisBounds();\r\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\r\n\tconst cachedAxis = new Vector3();\r\n\treturn function intersectsTriangle( other ) {\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( ! other.isSeparatingAxisTriangle ) {\r\n\r\n\t\t\tsaTri2.copy( other );\r\n\t\t\tsaTri2.update();\r\n\t\t\tother = saTri2;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds1 = this.satBounds;\r\n\t\tconst satAxes1 = this.satAxes;\r\n\t\tarr2[ 0 ] = other.a;\r\n\t\tarr2[ 1 ] = other.b;\r\n\t\tarr2[ 2 ] = other.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds1[ i ];\r\n\t\t\tconst sa = satAxes1[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr2 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\tconst satBounds2 = other.satBounds;\r\n\t\tconst satAxes2 = other.satAxes;\r\n\t\tarr1[ 0 ] = this.a;\r\n\t\tarr1[ 1 ] = this.b;\r\n\t\tarr1[ 2 ] = this.c;\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sb = satBounds2[ i ];\r\n\t\t\tconst sa = satAxes2[ i ];\r\n\t\t\tcachedSatBounds.setFromPoints( sa, arr1 );\r\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\r\n\r\n\t\t}\r\n\r\n\t\t// check crossed axes\r\n\t\tfor ( let i = 0; i < 4; i ++ ) {\r\n\r\n\t\t\tconst sa1 = satAxes1[ i ];\r\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\r\n\r\n\t\t\t\tconst sa2 = satAxes2[ i2 ];\r\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\r\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, arr1 );\r\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, arr2 );\r\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn true;\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToPoint = ( function () {\r\n\r\n\tconst target = new Vector3();\r\n\treturn function distanceToPoint( point ) {\r\n\r\n\t\tthis.closestPointToPoint( point, target );\r\n\t\treturn point.distanceTo( target );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n\r\nSeparatingAxisTriangle.prototype.distanceToTriangle = ( function () {\r\n\r\n\tconst point = new Vector3();\r\n\tconst point2 = new Vector3();\r\n\tconst cornerFields = [ 'a', 'b', 'c' ];\r\n\tconst line1 = new Line3();\r\n\tconst line2 = new Line3();\r\n\r\n\treturn function distanceToTriangle( other, target1 = null, target2 = null ) {\r\n\r\n\t\tif ( other.needsUpdate ) {\r\n\r\n\t\t\tother.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.needsUpdate ) {\r\n\r\n\t\t\tthis.update();\r\n\r\n\t\t}\r\n\r\n\t\tif ( this.intersectsTriangle( other ) ) {\r\n\r\n\t\t\t// TODO: This will not result in a point that lies on\r\n\t\t\t// the intersection line of the triangles\r\n\t\t\tif ( target1 || target2 ) {\r\n\r\n\t\t\t\tthis.getMidpoint( point );\r\n\t\t\t\tother.closestPointToPoint( point, point2 );\r\n\t\t\t\tthis.closestPointToPoint( point2, point );\r\n\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn 0;\r\n\r\n\t\t}\r\n\r\n\t\tlet closestDistanceSq = Infinity;\r\n\r\n\t\t// check all point distances\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tlet dist;\r\n\t\t\tconst field = cornerFields[ i ];\r\n\t\t\tconst otherVec = other[ field ];\r\n\t\t\tthis.closestPointToPoint( otherVec, point );\r\n\r\n\t\t\tdist = otherVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\tif ( target2 ) target2.copy( otherVec );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t\tconst thisVec = this[ field ];\r\n\t\t\tother.closestPointToPoint( thisVec, point );\r\n\r\n\t\t\tdist = thisVec.distanceToSquared( point );\r\n\r\n\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\tif ( target1 ) target1.copy( thisVec );\r\n\t\t\t\tif ( target2 ) target2.copy( point );\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < 3; i ++ ) {\r\n\r\n\t\t\tconst f11 = cornerFields[ i ];\r\n\t\t\tconst f12 = cornerFields[ ( i + 1 ) % 3 ];\r\n\t\t\tline1.set( this[ f11 ], this[ f12 ] );\r\n\t\t\tfor ( let i2 = 0; i2 < 3; i2 ++ ) {\r\n\r\n\t\t\t\tconst f21 = cornerFields[ i2 ];\r\n\t\t\t\tconst f22 = cornerFields[ ( i2 + 1 ) % 3 ];\r\n\t\t\t\tline2.set( other[ f21 ], other[ f22 ] );\r\n\r\n\t\t\t\tclosestPointsSegmentToSegment( line1, line2, point, point2 );\r\n\r\n\t\t\t\tconst dist = point.distanceToSquared( point2 );\r\n\t\t\t\tif ( dist < closestDistanceSq ) {\r\n\r\n\t\t\t\t\tclosestDistanceSq = dist;\r\n\t\t\t\t\tif ( target1 ) target1.copy( point );\r\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\treturn Math.sqrt( closestDistanceSq );\r\n\r\n\t};\r\n\r\n} )();\r\n\r\n","import { Box3, Vector3, Matrix4, Sphere, Line3 } from 'three';\nimport { SeparatingAxisBounds } from './SeparatingAxisBounds.js';\nimport { SeparatingAxisTriangle } from './SeparatingAxisTriangle.js';\nimport { closestPointsSegmentToSegment } from './MathUtilities.js';\n\nexport class OrientedBox extends Box3 {\n\n\tconstructor( ...args ) {\n\n\t\tsuper( ...args );\n\n\t\tthis.isOrientedBox = true;\n\t\tthis.matrix = new Matrix4();\n\t\tthis.invMatrix = new Matrix4();\n\t\tthis.points = new Array( 8 ).fill().map( () => new Vector3() );\n\t\tthis.satAxes = new Array( 3 ).fill().map( () => new Vector3() );\n\t\tthis.satBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.alignedSatBounds = new Array( 3 ).fill().map( () => new SeparatingAxisBounds() );\n\t\tthis.sphere = new Sphere();\n\n\t}\n\n\tset( min, max, matrix ) {\n\n\t\tsuper.set( min, max );\n\t\tthis.matrix = matrix;\n\n\t}\n\n\tcopy( other ) {\n\n\t\tsuper.copy( other );\n\t\tthis.matrix.copy( other.matrix );\n\n\t}\n\n}\n\nOrientedBox.prototype.update = ( function () {\n\n\treturn function update() {\n\n\t\tconst matrix = this.matrix;\n\t\tconst min = this.min;\n\t\tconst max = this.max;\n\n\t\tconst points = this.points;\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tconst i = ( ( 1 << 0 ) * x ) | ( ( 1 << 1 ) * y ) | ( ( 1 << 2 ) * z );\n\t\t\t\t\tconst v = points[ i ];\n\t\t\t\t\tv.x = x ? max.x : min.x;\n\t\t\t\t\tv.y = y ? max.y : min.y;\n\t\t\t\t\tv.z = z ? max.z : min.z;\n\n\t\t\t\t\tv.applyMatrix4( matrix );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.sphere.setFromPoints( this.points );\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst minVec = points[ 0 ];\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst index = 1 << i;\n\t\t\tconst pi = points[ index ];\n\n\t\t\taxis.subVectors( minVec, pi );\n\t\t\tsb.setFromPoints( axis, points );\n\n\t\t}\n\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\t\talignedSatBounds[ 0 ].setFromPointsField( points, 'x' );\n\t\talignedSatBounds[ 1 ].setFromPointsField( points, 'y' );\n\t\talignedSatBounds[ 2 ].setFromPointsField( points, 'z' );\n\n\t\tthis.invMatrix.copy( this.matrix ).invert();\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsBox = ( function () {\n\n\tconst aabbBounds = new SeparatingAxisBounds();\n\treturn function intersectsBox( box ) {\n\n\t\tif ( ! box.intersectsSphere( this.sphere ) ) return false;\n\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\t\tconst alignedSatBounds = this.alignedSatBounds;\n\n\t\taabbBounds.min = min.x;\n\t\taabbBounds.max = max.x;\n\t\tif ( alignedSatBounds[ 0 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.y;\n\t\taabbBounds.max = max.y;\n\t\tif ( alignedSatBounds[ 1 ].isSeparated( aabbBounds ) ) return false;\n\n\t\taabbBounds.min = min.z;\n\t\taabbBounds.max = max.z;\n\t\tif ( alignedSatBounds[ 2 ].isSeparated( aabbBounds ) ) return false;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst axis = satAxes[ i ];\n\t\t\tconst sb = satBounds[ i ];\n\t\t\taabbBounds.setFromBox( axis, box );\n\t\t\tif ( sb.isSeparated( aabbBounds ) ) return false;\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.intersectsTriangle = ( function () {\n\n\tconst saTri = new SeparatingAxisTriangle();\n\tconst pointsArr = new Array( 3 );\n\tconst cachedSatBounds = new SeparatingAxisBounds();\n\tconst cachedSatBounds2 = new SeparatingAxisBounds();\n\tconst cachedAxis = new Vector3();\n\treturn function intersectsTriangle( triangle ) {\n\n\t\tif ( ! triangle.isSeparatingAxisTriangle ) {\n\n\t\t\tsaTri.copy( triangle );\n\t\t\tsaTri.update();\n\t\t\ttriangle = saTri;\n\n\t\t} else if ( triangle.needsUpdate ) {\n\n\t\t\ttriangle.update();\n\n\t\t}\n\n\t\tconst satBounds = this.satBounds;\n\t\tconst satAxes = this.satAxes;\n\n\t\tpointsArr[ 0 ] = triangle.a;\n\t\tpointsArr[ 1 ] = triangle.b;\n\t\tpointsArr[ 2 ] = triangle.c;\n\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = satBounds[ i ];\n\t\t\tconst sa = satAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, pointsArr );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\tconst triSatBounds = triangle.satBounds;\n\t\tconst triSatAxes = triangle.satAxes;\n\t\tconst points = this.points;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sb = triSatBounds[ i ];\n\t\t\tconst sa = triSatAxes[ i ];\n\t\t\tcachedSatBounds.setFromPoints( sa, points );\n\t\t\tif ( sb.isSeparated( cachedSatBounds ) ) return false;\n\n\t\t}\n\n\t\t// check crossed axes\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tconst sa1 = satAxes[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 4; i2 ++ ) {\n\n\t\t\t\tconst sa2 = triSatAxes[ i2 ];\n\t\t\t\tcachedAxis.crossVectors( sa1, sa2 );\n\t\t\t\tcachedSatBounds.setFromPoints( cachedAxis, pointsArr );\n\t\t\t\tcachedSatBounds2.setFromPoints( cachedAxis, points );\n\t\t\t\tif ( cachedSatBounds.isSeparated( cachedSatBounds2 ) ) return false;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn true;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.closestPointToPoint = ( function () {\n\n\treturn function closestPointToPoint( point, target1 ) {\n\n\t\ttarget1\n\t\t\t.copy( point )\n\t\t\t.applyMatrix4( this.invMatrix )\n\t\t\t.clamp( this.min, this.max )\n\t\t\t.applyMatrix4( this.matrix );\n\n\t\treturn target1;\n\n\t};\n\n} )();\n\nOrientedBox.prototype.distanceToPoint = ( function () {\n\n\tconst target = new Vector3();\n\treturn function distanceToPoint( point ) {\n\n\t\tthis.closestPointToPoint( point, target );\n\t\treturn point.distanceTo( target );\n\n\t};\n\n} )();\n\n\nOrientedBox.prototype.distanceToBox = ( function () {\n\n\tconst xyzFields = [ 'x', 'y', 'z' ];\n\tconst segments1 = new Array( 12 ).fill().map( () => new Line3() );\n\tconst segments2 = new Array( 12 ).fill().map( () => new Line3() );\n\n\tconst point1 = new Vector3();\n\tconst point2 = new Vector3();\n\n\treturn function distanceToBox( box, threshold = 0, target1 = null, target2 = null ) {\n\n\t\tif ( this.intersectsBox( box ) ) {\n\n\t\t\tif ( target1 || target2 ) {\n\n\t\t\t\tbox.getCenter( point2 );\n\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\tbox.closestPointToPoint( point1, point2 );\n\n\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t}\n\t\t\treturn 0;\n\n\t\t}\n\n\t\tconst threshold2 = threshold * threshold;\n\t\tconst min = box.min;\n\t\tconst max = box.max;\n\t\tconst points = this.points;\n\n\n\t\t// iterate over every edge and compare distances\n\t\tlet closestDistanceSq = Infinity;\n\n\t\t// check over all these points\n\t\tfor ( let i = 0; i < 8; i ++ ) {\n\n\t\t\tconst p = points[ i ];\n\t\t\tpoint2.copy( p ).clamp( min, max );\n\n\t\t\tconst dist = p.distanceToSquared( point2 );\n\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\tif ( target1 ) target1.copy( p );\n\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate and check all line segment distances\n\t\tlet count = 0;\n\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\tfor ( let i1 = 0; i1 <= 1; i1 ++ ) {\n\n\t\t\t\tfor ( let i2 = 0; i2 <= 1; i2 ++ ) {\n\n\t\t\t\t\tconst nextIndex = ( i + 1 ) % 3;\n\t\t\t\t\tconst nextIndex2 = ( i + 2 ) % 3;\n\n\t\t\t\t\t// get obb line segments\n\t\t\t\t\tconst index = i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst index2 = 1 << i | i1 << nextIndex | i2 << nextIndex2;\n\t\t\t\t\tconst p1 = points[ index ];\n\t\t\t\t\tconst p2 = points[ index2 ];\n\t\t\t\t\tconst line1 = segments1[ count ];\n\t\t\t\t\tline1.set( p1, p2 );\n\n\n\t\t\t\t\t// get aabb line segments\n\t\t\t\t\tconst f1 = xyzFields[ i ];\n\t\t\t\t\tconst f2 = xyzFields[ nextIndex ];\n\t\t\t\t\tconst f3 = xyzFields[ nextIndex2 ];\n\t\t\t\t\tconst line2 = segments2[ count ];\n\t\t\t\t\tconst start = line2.start;\n\t\t\t\t\tconst end = line2.end;\n\n\t\t\t\t\tstart[ f1 ] = min[ f1 ];\n\t\t\t\t\tstart[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tstart[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tend[ f1 ] = max[ f1 ];\n\t\t\t\t\tend[ f2 ] = i1 ? min[ f2 ] : max[ f2 ];\n\t\t\t\t\tend[ f3 ] = i2 ? min[ f3 ] : max[ f2 ];\n\n\t\t\t\t\tcount ++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// check all the other boxes point\n\t\tfor ( let x = 0; x <= 1; x ++ ) {\n\n\t\t\tfor ( let y = 0; y <= 1; y ++ ) {\n\n\t\t\t\tfor ( let z = 0; z <= 1; z ++ ) {\n\n\t\t\t\t\tpoint2.x = x ? max.x : min.x;\n\t\t\t\t\tpoint2.y = y ? max.y : min.y;\n\t\t\t\t\tpoint2.z = z ? max.z : min.z;\n\n\t\t\t\t\tthis.closestPointToPoint( point2, point1 );\n\t\t\t\t\tconst dist = point2.distanceToSquared( point1 );\n\t\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfor ( let i = 0; i < 12; i ++ ) {\n\n\t\t\tconst l1 = segments1[ i ];\n\t\t\tfor ( let i2 = 0; i2 < 12; i2 ++ ) {\n\n\t\t\t\tconst l2 = segments2[ i2 ];\n\t\t\t\tclosestPointsSegmentToSegment( l1, l2, point1, point2 );\n\t\t\t\tconst dist = point1.distanceToSquared( point2 );\n\t\t\t\tif ( dist < closestDistanceSq ) {\n\n\t\t\t\t\tclosestDistanceSq = dist;\n\t\t\t\t\tif ( target1 ) target1.copy( point1 );\n\t\t\t\t\tif ( target2 ) target2.copy( point2 );\n\n\t\t\t\t\tif ( dist < threshold2 ) return Math.sqrt( dist );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t};\n\n} )();\n","// sets the vertices of triangle `tri` with the 3 vertices after i\r\nexport function setTriangle( tri, i, index, pos ) {\r\n\r\n\tconst ta = tri.a;\r\n\tconst tb = tri.b;\r\n\tconst tc = tri.c;\r\n\r\n\tlet i3 = index.getX( i );\r\n\tta.x = pos.getX( i3 );\r\n\tta.y = pos.getY( i3 );\r\n\tta.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 1 );\r\n\ttb.x = pos.getX( i3 );\r\n\ttb.y = pos.getY( i3 );\r\n\ttb.z = pos.getZ( i3 );\r\n\r\n\ti3 = index.getX( i + 2 );\r\n\ttc.x = pos.getX( i3 );\r\n\ttc.y = pos.getY( i3 );\r\n\ttc.z = pos.getZ( i3 );\r\n\r\n}\r\n","import { Vector3, Vector2, Triangle, DoubleSide, BackSide } from 'three';\r\n\r\n// Ripped and modified From THREE.js Mesh raycast\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L115\r\nvar vA = new Vector3();\r\nvar vB = new Vector3();\r\nvar vC = new Vector3();\r\n\r\nvar uvA = new Vector2();\r\nvar uvB = new Vector2();\r\nvar uvC = new Vector2();\r\n\r\nvar intersectionPoint = new Vector3();\r\nvar intersectionPointWorld = new Vector3();\r\n\r\nfunction checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {\r\n\r\n\tvar intersect;\r\n\tif ( material.side === BackSide ) {\r\n\r\n\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\r\n\r\n\t} else {\r\n\r\n\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\r\n\r\n\t}\r\n\r\n\tif ( intersect === null ) return null;\r\n\r\n\tintersectionPointWorld.copy( point );\r\n\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\r\n\r\n\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\r\n\r\n\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\r\n\r\n\treturn {\r\n\t\tdistance: distance,\r\n\t\tpoint: intersectionPointWorld.clone(),\r\n\t\tobject: object\r\n\t};\r\n\r\n}\r\n\r\nfunction checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {\r\n\r\n\tvA.fromBufferAttribute( position, a );\r\n\tvB.fromBufferAttribute( position, b );\r\n\tvC.fromBufferAttribute( position, c );\r\n\r\n\tvar intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tif ( uv ) {\r\n\r\n\t\t\tuvA.fromBufferAttribute( uv, a );\r\n\t\t\tuvB.fromBufferAttribute( uv, b );\r\n\t\t\tuvC.fromBufferAttribute( uv, c );\r\n\r\n\t\t\tintersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2( ) );\r\n\r\n\t\t}\r\n\r\n\t\tconst face = {\r\n\t\t\ta: a,\r\n\t\t\tb: b,\r\n\t\t\tc: c,\r\n\t\t\tnormal: new Vector3( ),\r\n\t\t\tmaterialIndex: 0\r\n\t\t};\r\n\r\n\t\tTriangle.getNormal( vA, vB, vC, face.normal );\r\n\r\n\t\tintersection.face = face;\r\n\t\tintersection.faceIndex = a;\r\n\r\n\t}\r\n\r\n\treturn intersection;\r\n\r\n}\r\n\r\n// https://github.com/mrdoob/three.js/blob/0aa87c999fe61e216c1133fba7a95772b503eddf/src/objects/Mesh.js#L258\r\nfunction intersectTri( mesh, geo, raycaster, ray, tri, intersections ) {\r\n\r\n\tconst triOffset = tri * 3;\r\n\tconst a = geo.index.getX( triOffset );\r\n\tconst b = geo.index.getX( triOffset + 1 );\r\n\tconst c = geo.index.getX( triOffset + 2 );\r\n\r\n\tconst intersection = checkBufferGeometryIntersection( mesh, raycaster, ray, geo.attributes.position, geo.attributes.uv, a, b, c );\r\n\r\n\tif ( intersection ) {\r\n\r\n\t\tintersection.faceIndex = tri;\r\n\t\tif ( intersections ) intersections.push( intersection );\r\n\t\treturn intersection;\r\n\r\n\t}\r\n\r\n\treturn null;\r\n\r\n}\r\n\r\nexport { intersectTri };\r\n","import { intersectTri } from './ThreeIntersectionUtilities.js';\r\n\r\nexport function intersectTris( mesh, geo, raycaster, ray, offset, count, intersections ) {\r\n\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tintersectTri( mesh, geo, raycaster, ray, i, intersections );\r\n\r\n\t}\r\n\r\n};\r\n\r\nexport function intersectClosestTri( mesh, geo, raycaster, ray, offset, count ) {\r\n\r\n\tlet dist = Infinity;\r\n\tlet res = null;\r\n\tfor ( let i = offset, end = offset + count; i < end; i ++ ) {\r\n\r\n\t\tconst intersection = intersectTri( mesh, geo, raycaster, ray, i );\r\n\t\tif ( intersection && intersection.distance < dist ) {\r\n\r\n\t\t\tres = intersection;\r\n\t\t\tdist = intersection.distance;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn res;\r\n\r\n};\r\n","import { setTriangle } from './TriangleUtils.js';\r\n\r\nexport function arrayToBox( nodeIndex32, array, target ) {\r\n\r\n\ttarget.min.x = array[ nodeIndex32 ];\r\n\ttarget.min.y = array[ nodeIndex32 + 1 ];\r\n\ttarget.min.z = array[ nodeIndex32 + 2 ];\r\n\r\n\ttarget.max.x = array[ nodeIndex32 + 3 ];\r\n\ttarget.max.y = array[ nodeIndex32 + 4 ];\r\n\ttarget.max.z = array[ nodeIndex32 + 5 ];\r\n\r\n}\r\n\r\nexport function iterateOverTriangles(\r\n\toffset,\r\n\tcount,\r\n\tgeometry,\r\n\tintersectsTriangleFunc,\r\n\tcontained,\r\n\tdepth,\r\n\ttriangle\r\n) {\r\n\r\n\tconst index = geometry.index;\r\n\tconst pos = geometry.attributes.position;\r\n\tfor ( let i = offset, l = count + offset; i < l; i ++ ) {\r\n\r\n\t\tsetTriangle( triangle, i * 3, index, pos );\r\n\t\ttriangle.needsUpdate = true;\r\n\r\n\t\tif ( intersectsTriangleFunc( triangle, i, contained, depth ) ) {\r\n\r\n\t\t\treturn true;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn false;\r\n\r\n}\r\n","/* Generated from \"castFunctions.template.js\". Do not edit. */\r\n\r\n// For speed and readability this script is processed to replace the macro-like calls\r\n// with inline buffer reads. See generate-cast-functions.js.\r\nimport { Box3, Vector3, Mesh, Matrix4 } from 'three';\r\nimport { intersectTris, intersectClosestTri } from './Utils/RayIntersectTriUtlities.js';\r\nimport { arrayToBox } from './Utils/BufferNodeUtils.js';\r\n\r\nimport { OrientedBox } from './Utils/OrientedBox.js';\r\nimport { setTriangle } from './Utils/TriangleUtils.js';\r\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\r\nimport { CONTAINED } from './Constants.js';\r\n\r\nconst boundingBox = new Box3();\r\nconst boxIntersection = new Vector3();\r\nconst xyzFields = [ 'x', 'y', 'z' ];\r\n\r\nexport function raycast( nodeIndex32, mesh, geometry, raycaster, ray, intersects ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\tintersectTris( mesh, geometry, raycaster, ray, offset, count, intersects );\r\n\r\n\t} else {\r\n\r\n\t\tconst leftIndex = nodeIndex32 + 8;\r\n\t\tif ( intersectRay( leftIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( leftIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t\tconst rightIndex = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tif ( intersectRay( rightIndex, float32Array, ray, boxIntersection ) ) {\r\n\r\n\t\t\traycast( rightIndex, mesh, geometry, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport function raycastFirst( nodeIndex32, mesh, geometry, raycaster, ray ) {\r\n\r\n\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\tif ( isLeaf ) {\r\n\r\n\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\treturn intersectClosestTri( mesh, geometry, raycaster, ray, offset, count );\r\n\r\n\t} else {\r\n\r\n\t\t// consider the position of the split plane with respect to the oncoming ray; whichever direction\r\n\t\t// the ray is coming from, look for an intersection among that side of the tree first\r\n\t\tconst splitAxis = uint32Array[ nodeIndex32 + 7 ];\r\n\t\tconst xyzAxis = xyzFields[ splitAxis ];\r\n\t\tconst rayDir = ray.direction[ xyzAxis ];\r\n\t\tconst leftToRight = rayDir >= 0;\r\n\r\n\t\t// c1 is the child to check first\r\n\t\tlet c1, c2;\r\n\t\tif ( leftToRight ) {\r\n\r\n\t\t\tc1 = nodeIndex32 + 8;\r\n\t\t\tc2 = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t} else {\r\n\r\n\t\t\tc1 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tc2 = nodeIndex32 + 8;\r\n\r\n\t\t}\r\n\r\n\t\tconst c1Intersection = intersectRay( c1, float32Array, ray, boxIntersection );\r\n\t\tconst c1Result = c1Intersection ? raycastFirst( c1, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\t// if we got an intersection in the first node and it's closer than the second node's bounding\r\n\t\t// box, we don't need to consider the second node because it couldn't possibly be a better result\r\n\t\tif ( c1Result ) {\r\n\r\n\t\t\t// check if the point is within the second bounds\r\n\t\t\tconst point = c1Result.point[ xyzAxis ];\r\n\t\t\tconst isOutside = leftToRight ?\r\n\t\t\t\tpoint <= float32Array[ c2 + splitAxis ] : // min bounding data\r\n\t\t\t\tpoint >= float32Array[ c2 + splitAxis + 3 ]; // max bounding data\r\n\r\n\t\t\tif ( isOutside ) {\r\n\r\n\t\t\t\treturn c1Result;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\t// either there was no intersection in the first node, or there could still be a closer\r\n\t\t// intersection in the second, so check the second node and then take the better of the two\r\n\t\tconst c2Intersection = intersectRay( c2, float32Array, ray, boxIntersection );\r\n\t\tconst c2Result = c2Intersection ? raycastFirst( c2, mesh, geometry, raycaster, ray ) : null;\r\n\r\n\t\tif ( c1Result && c2Result ) {\r\n\r\n\t\t\treturn c1Result.distance <= c2Result.distance ? c1Result : c2Result;\r\n\r\n\t\t} else {\r\n\r\n\t\t\treturn c1Result || c2Result || null;\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}\r\n\r\nexport const shapecast = ( function () {\r\n\r\n\tconst _triangle = new SeparatingAxisTriangle();\r\n\tconst _cachedBox1 = new Box3();\r\n\tconst _cachedBox2 = new Box3();\r\n\r\n\treturn function shapecast(\r\n\t\tnodeIndex32,\r\n\t\tmesh,\r\n\t\tgeometry,\r\n\t\tintersectsBoundsFunc,\r\n\t\tintersectsRangeFunc,\r\n\t\tnodeScoreFunc = null,\r\n\t\tnodeIndexByteOffset = 0, // offset for unique node identifier\r\n\t\tdepth = 0,\r\n\t\ttriangle = _triangle,\r\n\t\tcachedBox1 = _cachedBox1,\r\n\t\tcachedBox2 = _cachedBox2\r\n\t) {\r\n\r\n\t\t// Define these inside the function so it has access to the local variables needed\r\n\t\t// when converting to the buffer equivalents\r\n\t\tfunction getLeftOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\tnodeIndex32 = nodeIndex32 + 8;\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t}\r\n\r\n\t\tfunction getRightEndOffset( nodeIndex32 ) {\r\n\r\n\t\t\tlet nodeIndex16 = nodeIndex32 * 2, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\t\t// traverse until we find a leaf\r\n\t\t\twhile ( ! ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF ) ) {\r\n\r\n\t\t\t\t// adjust offset to point to the right node\r\n\t\t\t\tnodeIndex32 = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\t\tnodeIndex16 = nodeIndex32 * 2;\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// return the end offset of the triangle range\r\n\t\t\treturn uint32Array[ nodeIndex32 + 6 ] + uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t}\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\t\t\treturn intersectsRangeFunc( offset, count, false, depth, nodeIndex32 );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tlet c1 = left;\r\n\t\t\tlet c2 = right;\r\n\r\n\t\t\tlet score1, score2;\r\n\t\t\tlet box1, box2;\r\n\t\t\tif ( nodeScoreFunc ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tbox2 = cachedBox2;\r\n\r\n\t\t\t\t// bounding data is not offset\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\t\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\t\tscore1 = nodeScoreFunc( box1 );\r\n\t\t\t\tscore2 = nodeScoreFunc( box2 );\r\n\r\n\t\t\t\tif ( score2 < score1 ) {\r\n\r\n\t\t\t\t\tc1 = right;\r\n\t\t\t\t\tc2 = left;\r\n\r\n\t\t\t\t\tconst temp = score1;\r\n\t\t\t\t\tscore1 = score2;\r\n\t\t\t\t\tscore2 = temp;\r\n\r\n\t\t\t\t\tbox1 = box2;\r\n\t\t\t\t\t// box2 is always set before use below\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\t// Check box 1 intersection\r\n\t\t\tif ( ! box1 ) {\r\n\r\n\t\t\t\tbox1 = cachedBox1;\r\n\t\t\t\tarrayToBox( c1, float32Array, box1 );\r\n\r\n\t\t\t}\r\n\r\n\t\t\tconst isC1Leaf = ( uint16Array[ c1 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c1Intersection = intersectsBoundsFunc( box1, isC1Leaf, score1, depth + 1, nodeIndexByteOffset + c1 );\r\n\r\n\t\t\tlet c1StopTraversal;\r\n\t\t\tif ( c1Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c1 );\r\n\t\t\t\tconst end = getRightEndOffset( c1 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc1StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c1 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc1StopTraversal =\r\n\t\t\t\t\tc1Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc1,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tnodeIndexByteOffset,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c1StopTraversal ) return true;\r\n\r\n\t\t\t// Check box 2 intersection\r\n\t\t\t// cached box2 will have been overwritten by previous traversal\r\n\t\t\tbox2 = cachedBox2;\r\n\t\t\tarrayToBox( c2, float32Array, box2 );\r\n\r\n\t\t\tconst isC2Leaf = ( uint16Array[ c2 * 2 + 15 ] === 0xFFFF );\r\n\t\t\tconst c2Intersection = intersectsBoundsFunc( box2, isC2Leaf, score2, depth + 1, nodeIndexByteOffset + c2 );\r\n\r\n\t\t\tlet c2StopTraversal;\r\n\t\t\tif ( c2Intersection === CONTAINED ) {\r\n\r\n\t\t\t\tconst offset = getLeftOffset( c2 );\r\n\t\t\t\tconst end = getRightEndOffset( c2 );\r\n\t\t\t\tconst count = end - offset;\r\n\r\n\t\t\t\tc2StopTraversal = intersectsRangeFunc( offset, count, true, depth + 1, nodeIndexByteOffset + c2 );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tc2StopTraversal =\r\n\t\t\t\t\tc2Intersection &&\r\n\t\t\t\t\tshapecast(\r\n\t\t\t\t\t\tc2,\r\n\t\t\t\t\t\tmesh,\r\n\t\t\t\t\t\tgeometry,\r\n\t\t\t\t\t\tintersectsBoundsFunc,\r\n\t\t\t\t\t\tintersectsRangeFunc,\r\n\t\t\t\t\t\tnodeScoreFunc,\r\n\t\t\t\t\t\tnodeIndexByteOffset,\r\n\t\t\t\t\t\tdepth + 1,\r\n\t\t\t\t\t\ttriangle,\r\n\t\t\t\t\t\tcachedBox1,\r\n\t\t\t\t\t\tcachedBox2\r\n\t\t\t\t\t);\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( c2StopTraversal ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nexport const intersectsGeometry = ( function () {\r\n\r\n\tconst triangle = new SeparatingAxisTriangle();\r\n\tconst triangle2 = new SeparatingAxisTriangle();\r\n\tconst cachedMesh = new Mesh();\r\n\tconst invertedMat = new Matrix4();\r\n\r\n\tconst obb = new OrientedBox();\r\n\tconst obb2 = new OrientedBox();\r\n\r\n\treturn function intersectsGeometry( nodeIndex32, mesh, geometry, otherGeometry, geometryToBvh, cachedObb = null ) {\r\n\r\n\t\tlet nodeIndex16 = nodeIndex32 * 2, float32Array = _float32Array, uint16Array = _uint16Array, uint32Array = _uint32Array;\r\n\r\n\t\tif ( cachedObb === null ) {\r\n\r\n\t\t\tif ( ! otherGeometry.boundingBox ) {\r\n\r\n\t\t\t\totherGeometry.computeBoundingBox();\r\n\r\n\t\t\t}\r\n\r\n\t\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\r\n\t\t\tobb.update();\r\n\t\t\tcachedObb = obb;\r\n\r\n\t\t}\r\n\r\n\t\tconst isLeaf = ( uint16Array[ nodeIndex16 + 15 ] === 0xFFFF );\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tconst thisGeometry = geometry;\r\n\t\t\tconst thisIndex = thisGeometry.index;\r\n\t\t\tconst thisPos = thisGeometry.attributes.position;\r\n\r\n\t\t\tconst index = otherGeometry.index;\r\n\t\t\tconst pos = otherGeometry.attributes.position;\r\n\r\n\t\t\tconst offset = uint32Array[ nodeIndex32 + 6 ];\r\n\t\t\tconst count = uint16Array[ nodeIndex16 + 14 ];\r\n\r\n\t\t\t// get the inverse of the geometry matrix so we can transform our triangles into the\r\n\t\t\t// geometry space we're trying to test. We assume there are fewer triangles being checked\r\n\t\t\t// here.\r\n\t\t\tinvertedMat.copy( geometryToBvh ).invert();\r\n\r\n\t\t\tif ( otherGeometry.boundsTree ) {\r\n\r\n\t\t\t\tarrayToBox( nodeIndex32, float32Array, obb2 );\r\n\t\t\t\tobb2.matrix.copy( invertedMat );\r\n\t\t\t\tobb2.update();\r\n\r\n\t\t\t\tcachedMesh.geometry = otherGeometry;\r\n\t\t\t\tconst res = otherGeometry.boundsTree.shapecast( cachedMesh, {\r\n\r\n\t\t\t\t\tintersectsBounds: box => obb2.intersectsBox( box ),\r\n\r\n\t\t\t\t\tintersectsTriangle: tri => {\r\n\r\n\t\t\t\t\t\ttri.a.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.b.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.c.applyMatrix4( geometryToBvh );\r\n\t\t\t\t\t\ttri.update();\r\n\r\n\t\t\t\t\t\tfor ( let i = offset * 3, l = ( count + offset ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\t\t\tsetTriangle( triangle2, i, thisIndex, thisPos );\r\n\t\t\t\t\t\t\ttriangle2.update();\r\n\t\t\t\t\t\t\tif ( tri.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t\treturn false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t} );\r\n\t\t\t\tcachedMesh.geometry = null;\r\n\r\n\t\t\t\treturn res;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tfor ( let i = offset * 3, l = ( count + offset * 3 ); i < l; i += 3 ) {\r\n\r\n\t\t\t\t\t// this triangle needs to be transformed into the current BVH coordinate frame\r\n\t\t\t\t\tsetTriangle( triangle, i, thisIndex, thisPos );\r\n\t\t\t\t\ttriangle.a.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.b.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.c.applyMatrix4( invertedMat );\r\n\t\t\t\t\ttriangle.update();\r\n\r\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\r\n\r\n\t\t\t\t\t\tsetTriangle( triangle2, i2, index, pos );\r\n\t\t\t\t\t\ttriangle2.update();\r\n\r\n\t\t\t\t\t\tif ( triangle.intersectsTriangle( triangle2 ) ) {\r\n\r\n\t\t\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t\t\t}\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconst left = nodeIndex32 + 8;\r\n\t\t\tconst right = uint32Array[ nodeIndex32 + 6 ];\r\n\r\n\t\t\tarrayToBox( left, float32Array, boundingBox );\r\n\t\t\tconst leftIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( left, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( leftIntersection ) return true;\r\n\r\n\t\t\tarrayToBox( right, float32Array, boundingBox );\r\n\t\t\tconst rightIntersection =\r\n\t\t\t\tcachedObb.intersectsBox( boundingBox ) &&\r\n\t\t\t\tintersectsGeometry( right, mesh, geometry, otherGeometry, geometryToBvh, cachedObb );\r\n\r\n\t\t\tif ( rightIntersection ) return true;\r\n\r\n\t\t\treturn false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n} )();\r\n\r\nfunction intersectRay( nodeIndex32, array, ray, target ) {\r\n\r\n\tarrayToBox( nodeIndex32, array, boundingBox );\r\n\treturn ray.intersectBox( boundingBox, target );\r\n\r\n}\r\n\r\nconst bufferStack = [];\r\nlet _prevBuffer;\r\nlet _float32Array;\r\nlet _uint16Array;\r\nlet _uint32Array;\r\nexport function setBuffer( buffer ) {\r\n\r\n\tif ( _prevBuffer ) {\r\n\r\n\t\tbufferStack.push( _prevBuffer );\r\n\r\n\t}\r\n\r\n\t_prevBuffer = buffer;\r\n\t_float32Array = new Float32Array( buffer );\r\n\t_uint16Array = new Uint16Array( buffer );\r\n\t_uint32Array = new Uint32Array( buffer );\r\n\r\n}\r\n\r\nexport function clearBuffer() {\r\n\r\n\t_prevBuffer = null;\r\n\t_float32Array = null;\r\n\t_uint16Array = null;\r\n\t_uint32Array = null;\r\n\r\n\tif ( bufferStack.length ) {\r\n\r\n\t\tsetBuffer( bufferStack.pop() );\r\n\r\n\t}\r\n\r\n}\r\n","import { Vector3, BufferAttribute, Box3 } from 'three';\nimport { CENTER } from './Constants.js';\nimport { BYTES_PER_NODE, IS_LEAFNODE_FLAG, buildPackedTree } from './buildFunctions.js';\nimport { OrientedBox } from './Utils/OrientedBox.js';\nimport { SeparatingAxisTriangle } from './Utils/SeparatingAxisTriangle.js';\nimport { setTriangle } from './Utils/TriangleUtils.js';\nimport {\n\traycast,\n\traycastFirst,\n\tshapecast,\n\tintersectsGeometry,\n\tsetBuffer,\n\tclearBuffer,\n} from './castFunctions.js';\nimport { arrayToBox, iterateOverTriangles } from './Utils/BufferNodeUtils.js';\n\nconst SKIP_GENERATION = Symbol( 'skip tree generation' );\n\nconst obb = new OrientedBox();\nconst temp = new Vector3();\nconst tri2 = new SeparatingAxisTriangle();\nconst temp1 = new Vector3();\nconst temp2 = new Vector3();\nconst tempBox = new Box3();\nconst triangle = new SeparatingAxisTriangle();\n\nexport default class MeshBVH {\n\n\tstatic serialize( bvh, geometry, copyIndexBuffer = true ) {\n\n\t\tconst rootData = bvh._roots;\n\t\tconst indexAttribute = geometry.getIndex();\n\t\tconst result = {\n\t\t\troots: rootData,\n\t\t\tindex: copyIndexBuffer ? indexAttribute.array.slice() : indexAttribute.array,\n\t\t};\n\n\t\treturn result;\n\n\t}\n\n\tstatic deserialize( data, geometry, setIndex = true ) {\n\n\t\tconst { index, roots } = data;\n\t\tconst bvh = new MeshBVH( geometry, { [ SKIP_GENERATION ]: true } );\n\t\tbvh._roots = roots;\n\n\t\tif ( setIndex ) {\n\n\t\t\tconst indexAttribute = geometry.getIndex();\n\t\t\tif ( indexAttribute === null ) {\n\n\t\t\t\tconst newIndex = new BufferAttribute( data.index, 1, false );\n\t\t\t\tgeometry.setIndex( newIndex );\n\n\t\t\t} else if ( indexAttribute.array !== index ) {\n\n\t\t\t\tindexAttribute.array.set( index );\n\t\t\t\tindexAttribute.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn bvh;\n\n\t}\n\n\tconstructor( geometry, options = {} ) {\n\n\t\tif ( ! geometry.isBufferGeometry ) {\n\n\t\t\tthrow new Error( 'MeshBVH: Only BufferGeometries are supported.' );\n\n\t\t} else if ( geometry.attributes.position.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.' );\n\n\t\t} else if ( geometry.index && geometry.index.isInterleavedBufferAttribute ) {\n\n\t\t\tthrow new Error( 'MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.' );\n\n\t\t}\n\n\t\t// default options\n\t\toptions = Object.assign( {\n\n\t\t\tstrategy: CENTER,\n\t\t\tmaxDepth: 40,\n\t\t\tmaxLeafTris: 10,\n\t\t\tverbose: true,\n\n\t\t\tsetBoundingBox: true,\n\n\t\t\t// undocumented options\n\n\t\t\t// Whether to skip generating the tree. Used for deserialization.\n\t\t\t[ SKIP_GENERATION ]: false\n\n\t\t}, options );\n\t\toptions.strategy = Math.max( 0, Math.min( 2, options.strategy ) );\n\n\t\tthis._roots = null;\n\t\tif ( ! options[ SKIP_GENERATION ] ) {\n\n\t\t\tthis._roots = buildPackedTree( geometry, options );\n\n\t\t\tif ( ! geometry.boundingBox && options.setBoundingBox ) {\n\n\t\t\t\tgeometry.boundingBox = this.getBoundingBox( new Box3() );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// retain references to the geometry so we can use them it without having to\n\t\t// take a geometry reference in every function.\n\t\tthis.geometry = geometry;\n\n\t}\n\n\trefit( nodeIndices = null, terminationIndices = null ) {\n\n\t\tif ( nodeIndices && Array.isArray( nodeIndices ) ) {\n\n\t\t\tnodeIndices = new Set( nodeIndices );\n\n\t\t}\n\n\t\tif ( terminationIndices && Array.isArray( terminationIndices ) ) {\n\n\t\t\tterminationIndices = new Set( terminationIndices );\n\n\t\t}\n\n\t\tconst geometry = this.geometry;\n\t\tconst indexArr = geometry.index.array;\n\t\tconst posArr = geometry.attributes.position.array;\n\t\tlet buffer, uint32Array, uint16Array, float32Array;\n\t\tlet byteOffset = 0;\n\t\tconst roots = this._roots;\n\t\tfor ( let i = 0, l = roots.length; i < l; i ++ ) {\n\n\t\t\tbuffer = roots[ i ];\n\t\t\tuint32Array = new Uint32Array( buffer );\n\t\t\tuint16Array = new Uint16Array( buffer );\n\t\t\tfloat32Array = new Float32Array( buffer );\n\n\t\t\t_traverse( 0, byteOffset );\n\t\t\tbyteOffset += buffer.byteLength;\n\n\t\t}\n\n\t\tfunction _traverse( node32Index, byteOffset, force = false ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\n\t\t\t\tlet minx = Infinity;\n\t\t\t\tlet miny = Infinity;\n\t\t\t\tlet minz = Infinity;\n\t\t\t\tlet maxx = - Infinity;\n\t\t\t\tlet maxy = - Infinity;\n\t\t\t\tlet maxz = - Infinity;\n\t\t\t\tfor ( let i = 3 * offset, l = 3 * ( offset + count ); i < l; i ++ ) {\n\n\t\t\t\t\tconst index3 = indexArr[ i ] * 3;\n\t\t\t\t\tconst x = posArr[ index3 + 0 ];\n\t\t\t\t\tconst y = posArr[ index3 + 1 ];\n\t\t\t\t\tconst z = posArr[ index3 + 2 ];\n\n\t\t\t\t\tif ( x < minx ) minx = x;\n\t\t\t\t\tif ( x > maxx ) maxx = x;\n\n\t\t\t\t\tif ( y < miny ) miny = y;\n\t\t\t\t\tif ( y > maxy ) maxy = y;\n\n\t\t\t\t\tif ( z < minz ) minz = z;\n\t\t\t\t\tif ( z > maxz ) maxz = z;\n\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] !== minx ||\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] !== miny ||\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] !== minz ||\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] !== maxx ||\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] !== maxy ||\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] !== maxz\n\t\t\t\t) {\n\n\t\t\t\t\tfloat32Array[ node32Index + 0 ] = minx;\n\t\t\t\t\tfloat32Array[ node32Index + 1 ] = miny;\n\t\t\t\t\tfloat32Array[ node32Index + 2 ] = minz;\n\n\t\t\t\t\tfloat32Array[ node32Index + 3 ] = maxx;\n\t\t\t\t\tfloat32Array[ node32Index + 4 ] = maxy;\n\t\t\t\t\tfloat32Array[ node32Index + 5 ] = maxz;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + 8;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\n\t\t\t\t// the indentifying node indices provided by the shapecast function include offsets of all\n\t\t\t\t// root buffers to guarantee they're unique between roots so offset left and right indices here.\n\t\t\t\tconst offsetLeft = left + byteOffset;\n\t\t\t\tconst offsetRight = right + byteOffset;\n\n\t\t\t\tlet leftChange = false;\n\t\t\t\tlet forceLeft = force || terminationIndices && terminationIndices.has( offsetLeft );\n\t\t\t\tlet traverseLeft = forceLeft || ( nodeIndices ? nodeIndices.has( offsetLeft ) : true );\n\t\t\t\tif ( traverseLeft ) {\n\n\t\t\t\t\tleftChange = _traverse( left, byteOffset, forceLeft );\n\n\t\t\t\t}\n\n\t\t\t\tlet rightChange = false;\n\t\t\t\tlet forceRight = force || terminationIndices && terminationIndices.has( offsetRight );\n\t\t\t\tlet traverseRight = forceRight || ( nodeIndices ? nodeIndices.has( offsetRight ) : true );\n\t\t\t\tif ( traverseRight ) {\n\n\t\t\t\t\trightChange = _traverse( right, byteOffset, forceRight );\n\n\t\t\t\t}\n\n\t\t\t\tconst didChange = leftChange || rightChange;\n\n\t\t\t\tif ( didChange ) {\n\n\t\t\t\t\tfor ( let i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\tconst lefti = left + i;\n\t\t\t\t\t\tconst righti = right + i;\n\t\t\t\t\t\tconst minLeftValue = float32Array[ lefti ];\n\t\t\t\t\t\tconst maxLeftValue = float32Array[ lefti + 3 ];\n\t\t\t\t\t\tconst minRightValue = float32Array[ righti ];\n\t\t\t\t\t\tconst maxRightValue = float32Array[ righti + 3 ];\n\n\t\t\t\t\t\tfloat32Array[ node32Index + i ] = minLeftValue < minRightValue ? minLeftValue : minRightValue;\n\t\t\t\t\t\tfloat32Array[ node32Index + i + 3 ] = maxLeftValue > maxRightValue ? maxLeftValue : maxRightValue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn didChange;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\ttraverse( callback, rootIndex = 0 ) {\n\n\t\tconst buffer = this._roots[ rootIndex ];\n\t\tconst uint32Array = new Uint32Array( buffer );\n\t\tconst uint16Array = new Uint16Array( buffer );\n\t\t_traverse( 0 );\n\n\t\tfunction _traverse( node32Index, depth = 0 ) {\n\n\t\t\tconst node16Index = node32Index * 2;\n\t\t\tconst isLeaf = uint16Array[ node16Index + 15 ] === IS_LEAFNODE_FLAG;\n\t\t\tif ( isLeaf ) {\n\n\t\t\t\tconst offset = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst count = uint16Array[ node16Index + 14 ];\n\t\t\t\tcallback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), offset, count );\n\n\t\t\t} else {\n\n\t\t\t\tconst left = node32Index + BYTES_PER_NODE / 4;\n\t\t\t\tconst right = uint32Array[ node32Index + 6 ];\n\t\t\t\tconst splitAxis = uint32Array[ node32Index + 7 ];\n\t\t\t\tconst stopTraversal = callback( depth, isLeaf, new Float32Array( buffer, node32Index * 4, 6 ), splitAxis );\n\n\t\t\t\tif ( ! stopTraversal ) {\n\n\t\t\t\t\t_traverse( left, depth + 1 );\n\t\t\t\t\t_traverse( right, depth + 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/* Core Cast Functions */\n\traycast( mesh, raycaster, ray, intersects ) {\n\n\t\tconst geometry = this.geometry;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\traycast( 0, mesh, geometry, raycaster, ray, intersects );\n\t\t\tclearBuffer();\n\n\t\t}\n\n\t}\n\n\traycastFirst( mesh, raycaster, ray ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet closestResult = null;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tconst result = raycastFirst( 0, mesh, geometry, raycaster, ray );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result != null && ( closestResult == null || result.distance < closestResult.distance ) ) {\n\n\t\t\t\tclosestResult = result;\n\n\t\t\t}\n\n\t\t}\n\n\n\t\treturn closestResult;\n\n\t}\n\n\tintersectsGeometry( mesh, otherGeometry, geomToMesh ) {\n\n\t\tconst geometry = this.geometry;\n\t\tlet result = false;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = intersectsGeometry( 0, mesh, geometry, otherGeometry, geomToMesh );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\tshapecast( mesh, callbacks, _intersectsTriangleFunc, _orderNodesFunc ) {\n\n\t\tconst geometry = this.geometry;\n\t\tif ( callbacks instanceof Function ) {\n\n\t\t\tif ( _intersectsTriangleFunc ) {\n\n\t\t\t\t// Support the previous function signature that provided three sequential index buffer\n\t\t\t\t// indices here.\n\t\t\t\tconst originalTriangleFunc = _intersectsTriangleFunc;\n\t\t\t\t_intersectsTriangleFunc = ( tri, index, contained, depth ) => {\n\n\t\t\t\t\tconst i3 = index * 3;\n\t\t\t\t\treturn originalTriangleFunc( tri, i3, i3 + 1, i3 + 2, contained, depth );\n\n\t\t\t\t};\n\n\n\t\t\t}\n\n\t\t\tcallbacks = {\n\n\t\t\t\tboundsTraverseOrder: _orderNodesFunc,\n\t\t\t\tintersectsBounds: callbacks,\n\t\t\t\tintersectsTriangle: _intersectsTriangleFunc,\n\t\t\t\tintersectsRange: null,\n\n\t\t\t};\n\n\t\t\tconsole.warn( 'MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.' );\n\n\t\t}\n\n\t\tlet {\n\t\t\tboundsTraverseOrder,\n\t\t\tintersectsBounds,\n\t\t\tintersectsRange,\n\t\t\tintersectsTriangle,\n\t\t} = callbacks;\n\n\t\tif ( intersectsRange && intersectsTriangle ) {\n\n\t\t\tconst originalIntersectsRange = intersectsRange;\n\t\t\tintersectsRange = ( offset, count, contained, depth, nodeIndex ) => {\n\n\t\t\t\tif ( ! originalIntersectsRange( offset, count, contained, depth, nodeIndex ) ) {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t} else if ( ! intersectsRange ) {\n\n\t\t\tif ( intersectsTriangle ) {\n\n\t\t\t\tintersectsRange = ( offset, count, contained, depth ) => {\n\n\t\t\t\t\treturn iterateOverTriangles( offset, count, geometry, intersectsTriangle, contained, depth, triangle );\n\n\t\t\t\t};\n\n\t\t\t} else {\n\n\t\t\t\tintersectsRange = ( offset, count, contained ) => {\n\n\t\t\t\t\treturn contained;\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t}\n\n\t\tlet result = false;\n\t\tlet byteOffset = 0;\n\t\tfor ( const root of this._roots ) {\n\n\t\t\tsetBuffer( root );\n\t\t\tresult = shapecast( 0, mesh, geometry, intersectsBounds, intersectsRange, boundsTraverseOrder, byteOffset );\n\t\t\tclearBuffer();\n\n\t\t\tif ( result ) {\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tbyteOffset += root.byteLength;\n\n\t\t}\n\n\t\treturn result;\n\n\t}\n\n\t/* Derived Cast Functions */\n\tintersectsBox( mesh, box, boxToMesh ) {\n\n\t\tobb.set( box.min, box.max, boxToMesh );\n\t\tobb.update();\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => obb.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => obb.intersectsTriangle( tri )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tintersectsSphere( mesh, sphere ) {\n\n\t\treturn this.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\t\t\t\tintersectsBounds: box => sphere.intersectsBox( box ),\n\t\t\t\tintersectsTriangle: tri => tri.intersectsSphere( sphere )\n\t\t\t}\n\t\t);\n\n\t}\n\n\tclosestPointToGeometry( mesh, otherGeometry, geometryToBvh, target1 = null, target2 = null, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\tif ( ! otherGeometry.boundingBox ) {\n\n\t\t\totherGeometry.computeBoundingBox();\n\n\t\t}\n\n\t\tobb.set( otherGeometry.boundingBox.min, otherGeometry.boundingBox.max, geometryToBvh );\n\t\tobb.update();\n\n\t\tconst pos = otherGeometry.attributes.position;\n\t\tconst index = otherGeometry.index;\n\n\t\tlet tempTarget1 = null;\n\t\tlet tempTarget2 = null;\n\t\tif ( target1 ) {\n\n\t\t\ttempTarget1 = temp1;\n\n\t\t}\n\n\t\tif ( target2 ) {\n\n\t\t\ttempTarget2 = temp2;\n\n\t\t}\n\n\t\tlet closestDistance = Infinity;\n\t\tthis.shapecast(\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\treturn obb.distanceToBox( box, Math.min( closestDistance, maxThreshold ) );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistance && score < maxThreshold;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\tif ( tri.needsUpdate ) {\n\n\t\t\t\t\t\ttri.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tconst sphere1 = tri.sphere;\n\t\t\t\t\tfor ( let i2 = 0, l2 = index.count; i2 < l2; i2 += 3 ) {\n\n\t\t\t\t\t\tsetTriangle( tri2, i2, index, pos );\n\t\t\t\t\t\ttri2.a.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.b.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.c.applyMatrix4( geometryToBvh );\n\t\t\t\t\t\ttri2.sphere.setFromPoints( tri2.points );\n\n\t\t\t\t\t\tconst sphere2 = tri2.sphere;\n\t\t\t\t\t\tconst sphereDist = sphere2.center.distanceTo( sphere1.center ) - sphere2.radius - sphere1.radius;\n\t\t\t\t\t\tif ( sphereDist > closestDistance ) {\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttri2.update();\n\n\t\t\t\t\t\tconst dist = tri.distanceToTriangle( tri2, tempTarget1, tempTarget2 );\n\t\t\t\t\t\tif ( dist < closestDistance ) {\n\n\t\t\t\t\t\t\tif ( target1 ) {\n\n\t\t\t\t\t\t\t\ttarget1.copy( tempTarget1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( target2 ) {\n\n\t\t\t\t\t\t\t\ttarget2.copy( tempTarget2 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tclosestDistance = dist;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// stop traversal if we find a point that's under the given threshold\n\t\t\t\t\t\tif ( dist < minThreshold ) {\n\n\t\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn closestDistance;\n\n\t}\n\n\tdistanceToGeometry( mesh, geom, matrix, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToGeometry( mesh, geom, matrix, null, null, minThreshold, maxThreshold );\n\n\t}\n\n\tclosestPointToPoint( mesh, point, target, minThreshold = 0, maxThreshold = Infinity ) {\n\n\t\t// early out if under minThreshold\n\t\t// skip checking if over maxThreshold\n\t\t// set minThreshold = maxThreshold to quickly check if a point is within a threshold\n\t\t// returns Infinity if no value found\n\t\tconst minThresholdSq = minThreshold * minThreshold;\n\t\tconst maxThresholdSq = maxThreshold * maxThreshold;\n\t\tlet closestDistanceSq = Infinity;\n\t\tthis.shapecast(\n\n\t\t\tmesh,\n\t\t\t{\n\n\t\t\t\tboundsTraverseOrder: box => {\n\n\t\t\t\t\ttemp.copy( point ).clamp( box.min, box.max );\n\t\t\t\t\treturn temp.distanceToSquared( point );\n\n\t\t\t\t},\n\n\t\t\t\tintersectsBounds: ( box, isLeaf, score ) => {\n\n\t\t\t\t\treturn score < closestDistanceSq && score < maxThresholdSq;\n\n\t\t\t\t},\n\n\t\t\t\tintersectsTriangle: tri => {\n\n\t\t\t\t\ttri.closestPointToPoint( point, temp );\n\t\t\t\t\tconst distSq = point.distanceToSquared( temp );\n\t\t\t\t\tif ( distSq < closestDistanceSq ) {\n\n\t\t\t\t\t\tif ( target ) {\n\n\t\t\t\t\t\t\ttarget.copy( temp );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tclosestDistanceSq = distSq;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( distSq < minThresholdSq ) {\n\n\t\t\t\t\t\treturn true;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t}\n\n\t\t);\n\n\t\treturn Math.sqrt( closestDistanceSq );\n\n\t}\n\n\tdistanceToPoint( mesh, point, minThreshold, maxThreshold ) {\n\n\t\treturn this.closestPointToPoint( mesh, point, null, minThreshold, maxThreshold );\n\n\t}\n\n\tgetBoundingBox( target ) {\n\n\t\ttarget.makeEmpty();\n\n\t\tconst roots = this._roots;\n\t\troots.forEach( buffer => {\n\n\t\t\tarrayToBox( 0, new Float32Array( buffer ), tempBox );\n\t\t\ttarget.union( tempBox );\n\n\t\t} );\n\n\t\treturn target;\n\n\t}\n\n}\n","import { LineBasicMaterial, Box3Helper, Box3, Group, LineSegments } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\n\r\nconst wiremat = new LineBasicMaterial( { color: 0x00FF88, transparent: true, opacity: 0.3 } );\r\nconst boxGeom = new Box3Helper().geometry;\r\nlet boundingBox = new Box3();\r\n\r\nclass MeshBVHRootVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10, group = 0 ) {\r\n\r\n\t\tsuper( 'MeshBVHRootVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._group = group;\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst boundsTree = this.mesh.geometry.boundsTree;\r\n\t\tlet requiredChildren = 0;\r\n\t\tif ( boundsTree ) {\r\n\r\n\t\t\tboundsTree.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, countOrIsUnfinished ) => {\r\n\r\n\t\t\t\tlet isTerminal = isLeaf || countOrIsUnfinished;\r\n\r\n\t\t\t\t// Stop traversal\r\n\t\t\t\tif ( depth >= this.depth ) {\r\n\r\n\t\t\t\t\treturn true;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t\tif ( depth === this.depth - 1 || isTerminal ) {\r\n\r\n\t\t\t\t\tlet m = requiredChildren < this.children.length ? this.children[ requiredChildren ] : null;\r\n\t\t\t\t\tif ( ! m ) {\r\n\r\n\t\t\t\t\t\tm = new LineSegments( boxGeom, wiremat );\r\n\t\t\t\t\t\tm.raycast = () => [];\r\n\t\t\t\t\t\tthis.add( m );\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\trequiredChildren ++;\r\n\t\t\t\t\tarrayToBox( boundingData, boundingBox );\r\n\t\t\t\t\tboundingBox.getCenter( m.position );\r\n\t\t\t\t\tm.scale.subVectors( boundingBox.max, boundingBox.min ).multiplyScalar( 0.5 );\r\n\r\n\t\t\t\t\tif ( m.scale.x === 0 ) m.scale.x = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.y === 0 ) m.scale.y = Number.EPSILON;\r\n\t\t\t\t\tif ( m.scale.z === 0 ) m.scale.z = Number.EPSILON;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} );\r\n\r\n\t\t}\r\n\r\n\t\twhile ( this.children.length > requiredChildren ) this.remove( this.children.pop() );\r\n\r\n\t}\r\n\r\n}\r\n\r\nclass MeshBVHVisualizer extends Group {\r\n\r\n\tconstructor( mesh, depth = 10 ) {\r\n\r\n\t\tsuper( 'MeshBVHVisualizer' );\r\n\r\n\t\tthis.depth = depth;\r\n\t\tthis.mesh = mesh;\r\n\t\tthis._roots = [];\r\n\r\n\t\tthis.update();\r\n\r\n\t}\r\n\r\n\tupdate() {\r\n\r\n\t\tconst bvh = this.mesh.geometry.boundsTree;\r\n\t\tconst totalRoots = bvh ? bvh._roots.length : 0;\r\n\t\twhile ( this._roots.length > totalRoots ) {\r\n\r\n\t\t\tthis._roots.pop();\r\n\r\n\t\t}\r\n\r\n\t\tfor ( let i = 0; i < totalRoots; i ++ ) {\r\n\r\n\t\t\tif ( i >= this._roots.length ) {\r\n\r\n\t\t\t\tconst root = new MeshBVHRootVisualizer( this.mesh, this.depth, i );\r\n\t\t\t\tthis.add( root );\r\n\t\t\t\tthis._roots.push( root );\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tlet root = this._roots[ i ];\r\n\t\t\t\troot.depth = this.depth;\r\n\t\t\t\troot.mesh = this.mesh;\r\n\t\t\t\troot.update();\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\tupdateMatrixWorld( ...args ) {\r\n\r\n\t\tthis.position.copy( this.mesh.position );\r\n\t\tthis.rotation.copy( this.mesh.rotation );\r\n\t\tthis.scale.copy( this.mesh.scale );\r\n\r\n\t\tsuper.updateMatrixWorld( ...args );\r\n\r\n\t}\r\n\r\n\tcopy( source ) {\r\n\r\n\t\tthis.depth = source.depth;\r\n\t\tthis.mesh = source.mesh;\r\n\r\n\t}\r\n\r\n\tclone() {\r\n\r\n\t\treturn new MeshBVHVisualizer( this.mesh, this.depth );\r\n\r\n\t}\r\n\r\n}\r\n\r\n\r\nexport default MeshBVHVisualizer;\r\n","// https://stackoverflow.com/questions/1248302/how-to-get-the-size-of-a-javascript-object\r\nfunction getPrimitiveSize( el ) {\r\n\r\n\tswitch ( typeof el ) {\r\n\r\n\t\tcase 'number':\r\n\t\t\treturn 8;\r\n\t\tcase 'string':\r\n\t\t\treturn el.length * 2;\r\n\t\tcase 'boolean':\r\n\t\t\treturn 4;\r\n\t\tdefault:\r\n\t\t\treturn 0;\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction isTypedArray( arr ) {\r\n\r\n\tconst regex = /(Uint|Int|Float)(8|16|32)Array/;\r\n\treturn regex.test( arr.constructor.name );\r\n\r\n}\r\n\r\nfunction getRootExtremes( bvh, group ) {\r\n\r\n\tconst result = {\r\n\t\ttotal: 0,\r\n\t\tdepth: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\ttris: {\r\n\t\t\tmin: Infinity, max: - Infinity\r\n\t\t},\r\n\t\tsplits: [ 0, 0, 0 ]\r\n\t};\r\n\r\n\tbvh.traverse( ( depth, isLeaf, boundingData, offsetOrSplit, count ) => {\r\n\r\n\t\tresult.total ++;\r\n\t\tif ( isLeaf ) {\r\n\r\n\t\t\tresult.depth.min = Math.min( depth, result.depth.min );\r\n\t\t\tresult.depth.max = Math.max( depth, result.depth.max );\r\n\r\n\t\t\tresult.tris.min = Math.min( count, result.tris.min );\r\n\t\t\tresult.tris.max = Math.max( count, result.tris.max );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tresult.splits[ offsetOrSplit ] ++;\r\n\r\n\t\t}\r\n\r\n\t}, group );\r\n\r\n\t// If there are no leaf nodes because the tree hasn't finished generating yet.\r\n\tif ( result.tris.min === Infinity ) {\r\n\r\n\t\tresult.tris.min = 0;\r\n\t\tresult.tris.max = 0;\r\n\r\n\t}\r\n\r\n\tif ( result.depth.min === Infinity ) {\r\n\r\n\t\tresult.depth.min = 0;\r\n\t\tresult.depth.max = 0;\r\n\r\n\t}\r\n\r\n\treturn result;\r\n\r\n}\r\n\r\nfunction getBVHExtremes( bvh ) {\r\n\r\n\treturn bvh._roots.map( ( root, i ) => getRootExtremes( bvh, i ) );\r\n\r\n}\r\n\r\nfunction estimateMemoryInBytes( obj ) {\r\n\r\n\tconst traversed = new Set();\r\n\tconst stack = [ obj ];\r\n\tlet bytes = 0;\r\n\r\n\twhile ( stack.length ) {\r\n\r\n\t\tconst curr = stack.pop();\r\n\t\tif ( traversed.has( curr ) ) {\r\n\r\n\t\t\tcontinue;\r\n\r\n\t\t}\r\n\t\ttraversed.add( curr );\r\n\r\n\t\tfor ( let key in curr ) {\r\n\r\n\t\t\tif ( ! curr.hasOwnProperty( key ) ) {\r\n\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tbytes += getPrimitiveSize( key );\r\n\r\n\t\t\tconst value = curr[ key ];\r\n\t\t\tif ( value && ( typeof value === 'object' || typeof value === 'function' ) ) {\r\n\r\n\t\t\t\tif ( isTypedArray( value ) ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else if ( value instanceof ArrayBuffer ) {\r\n\r\n\t\t\t\t\tbytes += value.byteLength;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tstack.push( value );\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tbytes += getPrimitiveSize( value );\r\n\r\n\t\t\t}\r\n\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n\treturn bytes;\r\n\r\n}\r\n\r\nexport { estimateMemoryInBytes, getBVHExtremes };\r\n","import { Box3, Vector3 } from 'three';\r\nimport { arrayToBox } from './Utils/ArrayBoxUtilities.js';\r\nconst box1 = new Box3();\r\nconst box2 = new Box3();\r\nconst vec = new Vector3();\r\n\r\nexport class MeshBVHDebug {\r\n\r\n\tconstructor( bvh, geometry ) {\r\n\r\n\t\tthis.bvh = bvh;\r\n\t\tthis.geometry = geometry;\r\n\r\n\t}\r\n\r\n\t// Returns a simple, human readable object that represents the BVH.\r\n\tgetJSONStructure() {\r\n\r\n\t\tconst { bvh } = this;\r\n\t\tconst depthStack = [];\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tbounds: arrayToBox( boundingData, new Box3() ),\r\n\t\t\t};\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\tinfo.count = count;\r\n\t\t\t\tinfo.offset = offset;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tinfo.left = null;\r\n\t\t\t\tinfo.right = null;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\t// traversal hits the left then right node\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\tif ( parent.left === null ) {\r\n\r\n\t\t\t\t\tparent.left = info;\r\n\r\n\t\t\t\t} else {\r\n\r\n\t\t\t\t\tparent.right = info;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn depthStack[ 0 ];\r\n\r\n\t}\r\n\r\n\tvalidateBounds() {\r\n\r\n\t\tconst { bvh, geometry } = this;\r\n\t\tconst depthStack = [];\r\n\t\tconst index = geometry.index;\r\n\t\tconst position = geometry.getAttribute( 'position' );\r\n\t\tlet passes = true;\r\n\r\n\t\tbvh.traverse( ( depth, isLeaf, boundingData, offset, count ) => {\r\n\r\n\t\t\tconst info = {\r\n\t\t\t\tdepth,\r\n\t\t\t\tisLeaf,\r\n\t\t\t\tboundingData,\r\n\t\t\t\toffset,\r\n\t\t\t\tcount,\r\n\t\t\t};\r\n\t\t\tdepthStack[ depth ] = info;\r\n\r\n\t\t\tarrayToBox( boundingData, box1 );\r\n\t\t\tconst parent = depthStack[ depth - 1 ];\r\n\r\n\t\t\tif ( isLeaf ) {\r\n\r\n\t\t\t\t// check triangles\r\n\t\t\t\tfor ( let i = offset * 3, l = ( offset + count ) * 3; i < l; i += 3 ) {\r\n\r\n\t\t\t\t\tconst i0 = index.getX( i );\r\n\t\t\t\t\tconst i1 = index.getX( i + 1 );\r\n\t\t\t\t\tconst i2 = index.getX( i + 2 );\r\n\r\n\t\t\t\t\tlet isContained;\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i0 );\r\n\t\t\t\t\tisContained = box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i1 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tvec.fromBufferAttribute( position, i2 );\r\n\t\t\t\t\tisContained = isContained && box1.containsPoint( vec );\r\n\r\n\t\t\t\t\tconsole.assert( isContained, 'Leaf bounds does not fully contain triangle.' );\r\n\t\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t}\r\n\r\n\t\t\tif ( parent ) {\r\n\r\n\t\t\t\t// check if my bounds fit in my parents\r\n\t\t\t\tarrayToBox( boundingData, box2 );\r\n\r\n\t\t\t\tconst isContained = box2.containsBox( box1 );\r\n\t\t\t\tconsole.assert( isContained, 'Parent bounds does not fully contain child.' );\r\n\t\t\t\tpasses = passes && isContained;\r\n\r\n\t\t\t}\r\n\r\n\t\t} );\r\n\r\n\t\treturn passes;\r\n\r\n\t}\r\n\r\n}\r\n","import { Ray, Matrix4, Mesh } from 'three';\r\nimport MeshBVH from './MeshBVH.js';\r\nimport Visualizer from './MeshBVHVisualizer.js';\r\nimport { CENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED } from './Constants.js';\r\nimport { getBVHExtremes, estimateMemoryInBytes } from './Utils/Debug.js';\r\nimport { MeshBVHDebug } from './MeshBVHDebug.js';\r\n\r\nconst ray = new Ray();\r\nconst tmpInverseMatrix = new Matrix4();\r\nconst origMeshRaycastFunc = Mesh.prototype.raycast;\r\n\r\nfunction acceleratedRaycast( raycaster, intersects ) {\r\n\r\n\tif ( this.geometry.boundsTree ) {\r\n\r\n\t\tif ( this.material === undefined ) return;\r\n\r\n\t\ttmpInverseMatrix.copy( this.matrixWorld ).invert();\r\n\t\tray.copy( raycaster.ray ).applyMatrix4( tmpInverseMatrix );\r\n\r\n\t\tif ( raycaster.firstHitOnly === true ) {\r\n\r\n\t\t\tconst res = this.geometry.boundsTree.raycastFirst( this, raycaster, ray );\r\n\t\t\tif ( res ) intersects.push( res );\r\n\r\n\t\t} else {\r\n\r\n\t\t\tthis.geometry.boundsTree.raycast( this, raycaster, ray, intersects );\r\n\r\n\t\t}\r\n\r\n\t} else {\r\n\r\n\t\torigMeshRaycastFunc.call( this, raycaster, intersects );\r\n\r\n\t}\r\n\r\n}\r\n\r\nfunction computeBoundsTree( options ) {\r\n\r\n\tthis.boundsTree = new MeshBVH( this, options );\r\n\treturn this.boundsTree;\r\n\r\n}\r\n\r\nfunction disposeBoundsTree() {\r\n\r\n\tthis.boundsTree = null;\r\n\r\n}\r\n\r\nexport {\r\n\tMeshBVH, Visualizer, Visualizer as MeshBVHVisualizer, MeshBVHDebug,\r\n\tacceleratedRaycast, computeBoundsTree, disposeBoundsTree,\r\n\tCENTER, AVERAGE, SAH, NOT_INTERSECTED, INTERSECTED, CONTAINED,\r\n\testimateMemoryInBytes, 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diff --git a/example/bundle/asyncGenerate.4a48c6e8.js b/example/bundle/asyncGenerate.4a48c6e8.js
index 3eae58c01..a80d1bc26 100644
--- a/example/bundle/asyncGenerate.4a48c6e8.js
+++ b/example/bundle/asyncGenerate.4a48c6e8.js
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t=e.__save_row=document.createElement("li");A.addClass(e.domElement,"has-save"),e.__ul.insertBefore(t,e.__ul.firstChild),A.addClass(t,"save-row");var n=document.createElement("span");n.innerHTML="&nbsp;",A.addClass(n,"button gears");var o=document.createElement("span");o.innerHTML="Save",A.addClass(o,"button"),A.addClass(o,"save");var r=document.createElement("span");r.innerHTML="New",A.addClass(r,"button"),A.addClass(r,"save-as");var s=document.createElement("span");s.innerHTML="Revert",A.addClass(s,"button"),A.addClass(s,"revert");var a=e.__preset_select=document.createElement("select");if(e.load&&e.load.remembered?i.each(e.load.remembered,function(t,n){ue(e,n,n===e.preset)}):ue(e,Q,!1),A.bind(a,"change",function(){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].innerHTML=e.__preset_select[t].value;e.preset=this.value}),t.appendChild(a),t.appendChild(n),t.appendChild(o),t.appendChild(r),t.appendChild(s),q){var l=document.getElementById("dg-local-explain"),d=document.getElementById("dg-local-storage");document.getElementById("dg-save-locally").style.display="block","true"===localStorage.getItem(ce(e,"isLocal"))&&d.setAttribute("checked","checked"),_e(e,l),A.bind(d,"change",function(){e.useLocalStorage=!e.useLocalStorage,_e(e,l)})}var c=document.getElementById("dg-new-constructor");A.bind(c,"keydown",function(e){!e.metaKey||67!==e.which&&67!==e.keyCode||Z.hide()}),A.bind(n,"click",function(){c.innerHTML=JSON.stringify(e.getSaveObject(),void 0,2),Z.show(),c.focus(),c.select()}),A.bind(o,"click",function(){e.save()}),A.bind(r,"click",function(){var t=prompt("Enter a new preset name.");t&&e.saveAs(t)}),A.bind(s,"click",function(){e.revert()})}function pe(e){var t=void 0;function n(n){return n.preventDefault(),e.width+=t-n.clientX,e.onResize(),t=n.clientX,!1}function o(){A.removeClass(e.__closeButton,oe.CLASS_DRAG),A.unbind(window,"mousemove",n),A.unbind(window,"mouseup",o)}function r(i){return i.preventDefault(),t=i.clientX,A.addClass(e.__closeButton,oe.CLASS_DRAG),A.bind(window,"mousemove",n),A.bind(window,"mouseup",o),!1}e.__resize_handle=document.createElement("div"),i.extend(e.__resize_handle.style,{width:"6px",marginLeft:"-3px",height:"200px",cursor:"ew-resize",position:"absolute"}),A.bind(e.__resize_handle,"mousedown",r),A.bind(e.__closeButton,"mousedown",r),e.domElement.insertBefore(e.__resize_handle,e.domElement.firstElementChild)}function fe(e,t){e.domElement.style.width=t+"px",e.__save_row&&e.autoPlace&&(e.__save_row.style.width=t+"px"),e.__closeButton&&(e.__closeButton.style.width=t+"px")}function me(e,t){var n={};return i.each(e.__rememberedObjects,function(o,r){var s={},a=e.__rememberedObjectIndecesToControllers[r];i.each(a,function(e,n){s[n]=t?e.initialValue:e.getValue()}),n[r]=s}),n}function ge(e){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].value===e.preset&&(e.__preset_select.selectedIndex=t)}function be(e){0!==e.length&&U.call(window,function(){be(e)}),i.each(e,function(e){e.updateDisplay()})}oe.toggleHide=function(){te=!te,i.each(ne,function(e){e.domElement.style.display=te?"none":""})},oe.CLASS_AUTO_PLACE="a",oe.CLASS_AUTO_PLACE_CONTAINER="ac",oe.CLASS_MAIN="main",oe.CLASS_CONTROLLER_ROW="cr",oe.CLASS_TOO_TALL="taller-than-window",oe.CLASS_CLOSED="closed",oe.CLASS_CLOSE_BUTTON="close-button",oe.CLASS_CLOSE_TOP="close-top",oe.CLASS_CLOSE_BOTTOM="close-bottom",oe.CLASS_DRAG="drag",oe.DEFAULT_WIDTH=245,oe.TEXT_CLOSED="Close Controls",oe.TEXT_OPEN="Open Controls",oe._keydownHandler=function(e){"text"===document.activeElement.type||e.which!==J&&e.keyCode!==J||oe.toggleHide()},A.bind(window,"keydown",oe._keydownHandler,!1),i.extend(oe.prototype,{add:function(e,t){return de(this,e,t,{factoryArgs:Array.prototype.slice.call(arguments,2)})},addColor:function(e,t){return de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). 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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -32,11 +32,11 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"dbR2":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.GenerateMeshBVHWorker=void 0;var e=require("three"),r=n(require("../MeshBVH.js"));function n(e){return e&&e.__esModule?e:{default:e}}function t(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}function i(e,r){for(var n=0;n<r.length;n++){var t=r[n];t.enumerable=t.enumerable||!1,t.configurable=!0,"value"in t&&(t.writable=!0),Object.defineProperty(e,t.key,t)}}function o(e,r,n){return r&&i(e.prototype,r),n&&i(e,n),e}var a=function(){function n(){t(this,n),this.running=!1,this.worker=new Worker("generateAsync.worker.13d14241.js")}return o(n,[{key:"generate",value:function(n){var t=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(this.running)throw new Error("GenerateMeshBVHWorker: Already running job.");var o=this.worker;return this.running=!0,new Promise(function(a,u){o.onmessage=function(s){t.running=!1,o.onmessage=null;var f=s.data,l=f.serialized,d=f.position,c=f.error;if(c)u(new Error(c));else{var h=r.default.deserialize(l,n,!1),g=Object.assign({setBoundingBox:!0},i);n.attributes.position.array=d,n.index&&(n.index.array=l.index),g.setBoundingBox&&(n.boundingBox=h.getBoundingBox(new e.Box3)),a(h)}};var s=n.index?n.index.array:null,f=n.attributes.position.array;if(f.isInterleavedBufferAttribute||s&&s.isInterleavedBufferAttribute)throw new Error("GenerateMeshBVHWorker: InterleavedBufferAttribute are not supported for the geometry attributes.");var l=[f];s&&l.push(s),o.postMessage({index:s,position:f,options:i},l.map(function(e){return e.buffer}))})}},{key:"terminate",value:function(){this.worker.terminate()}}]),n}();exports.GenerateMeshBVHWorker=a;
 },{"three":"dKqR","../MeshBVH.js":"nIyY","./generateAsync.worker.js":[["generateAsync.worker.13d14241.js","HHJX"],"HHJX"]}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
@@ -44,5 +44,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
 },{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"ODc6":[function(require,module,exports) {
-"use strict";var e=u(require("three")),n=d(require("stats.js")),r=require("dat.gui"),t=require("../src/workers/GenerateMeshBVHWorker.js"),a=require("../src/index.js"),o=d(require("../src/MeshBVHVisualizer.js")),i=d(require("../src/MeshBVH.js"));function d(e){return e&&e.__esModule?e:{default:e}}function s(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return s=function(){return e},e}function u(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var n=s();if(n&&n.has(e))return n.get(e);var r={},t=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var a in e)if(Object.prototype.hasOwnProperty.call(e,a)){var o=t?Object.getOwnPropertyDescriptor(e,a):null;o&&(o.get||o.set)?Object.defineProperty(r,a,o):r[a]=e[a]}return r.default=e,n&&n.set(e,r),r}e.Mesh.raycast=a.acceleratedRaycast;var l,p,w,c,m,f,h,g,y,v,b,M={useWebWorker:!0,radius:1,tube:.3,tubularSegments:250,radialSegments:250,p:3,q:5,displayHelper:!1,helperDepth:10},S=!1;function G(){h=document.getElementById("output"),(l=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),l.setSize(window.innerWidth,window.innerHeight),l.setClearColor(16763432,1),l.gammaOutput=!0,document.body.appendChild(l.domElement),(w=new e.Scene).fog=new e.Fog(16763432,20,60);var a=new e.DirectionalLight(16777215,1);a.position.set(1,1,1),w.add(a),w.add(new e.AmbientLight(11583173,.8)),(p=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,4),p.far=100,p.updateProjectionMatrix(),m=new e.Clock,v=new n.default,document.body.appendChild(v.dom),y=new e.Group,w.add(y);for(var o=0;o<400;o++){var i=new e.Mesh(new e.SphereBufferGeometry(1,32,32),new e.MeshBasicMaterial);i.position.set(Math.random()-.5,Math.random()-.5,Math.random()-.5).multiplyScalar(70),i.scale.setScalar(.3*Math.random()+.1),y.add(i)}b=new t.GenerateMeshBVHWorker;var d=(f=new r.GUI).addFolder("helper");d.add(M,"displayHelper").name("enabled").onChange(function(e){e&&g&&g.update()}),d.add(M,"helperDepth",1,50,1).onChange(function(e){g&&(g.depth=e,g.update())}),d.open();var s=f.addFolder("knot");s.add(M,"useWebWorker"),s.add(M,"radius",.5,2,.01),s.add(M,"tube",.2,1.2,.01),s.add(M,"tubularSegments",50,1e3,1),s.add(M,"radialSegments",5,1e3,1),s.add(M,"p",1,10,1),s.add(M,"q",1,10,1),s.add({regenerateKnot:W},"regenerateKnot").name("regenerate"),s.open(),W(),window.addEventListener("resize",function(){p.aspect=window.innerWidth/window.innerHeight,p.updateProjectionMatrix(),l.setSize(window.innerWidth,window.innerHeight)},!1)}function W(){if(!S){S=!0,c&&(c.material.dispose(),c.geometry.dispose(),y.remove(c),y.remove(g));var n=window.performance.now(),r=window.performance.now();c=new e.Mesh(new e.TorusKnotBufferGeometry(M.radius,M.tube,M.tubularSegments,M.radialSegments,M.p,M.q),new e.MeshStandardMaterial({color:new e.Color(5093036).convertSRGBToLinear(),roughness:.75}));var t,a=window.performance.now()-r,d=window.performance.now();if(M.useWebWorker)b.generate(c.geometry).then(function(e){c.geometry.boundsTree=e,y.add(c);var n=window.performance.now()-d;S=!1,(g=new o.default(c,0)).depth=M.helperDepth,M.displayHelper&&g.update(),y.add(g),h.textContent="Geometry Generation Time : ".concat(a.toFixed(3),"ms\n")+"BVH Generation Time : ".concat(n.toFixed(3),"ms\n")+"Frame Stall Time : ".concat(t.toFixed(3))}),t=window.performance.now()-n;else{c.geometry.boundsTree=new i.default(c.geometry,{lazyGeneration:!1}),t=window.performance.now()-n,y.add(c);var s=window.performance.now()-d;S=!1,(g=new o.default(c)).depth=M.helperDepth,g.update(),y.add(g),h.textContent="Geometry Generation Time : ".concat(a.toFixed(3),"ms\n")+"BVH Generation Time : ".concat(s.toFixed(3),"ms\n")+"Frame Stall Time : ".concat(t.toFixed(3))}}}function x(){v.update(),requestAnimationFrame(x);var e=m.getDelta();y.rotation.x+=.4*e,y.rotation.y+=.6*e,g&&(g.visible=M.displayHelper),l.render(w,p)}G(),x();
+"use strict";var e=u(require("three")),n=d(require("stats.js")),r=require("dat.gui"),t=require("../src/workers/GenerateMeshBVHWorker.js"),a=require("../src/index.js"),o=d(require("../src/MeshBVHVisualizer.js")),i=d(require("../src/MeshBVH.js"));function d(e){return e&&e.__esModule?e:{default:e}}function s(e){if("function"!=typeof WeakMap)return null;var n=new WeakMap,r=new WeakMap;return(s=function(e){return e?r:n})(e)}function u(e,n){if(!n&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=s(n);if(r&&r.has(e))return r.get(e);var t={},a=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if("default"!==o&&Object.prototype.hasOwnProperty.call(e,o)){var i=a?Object.getOwnPropertyDescriptor(e,o):null;i&&(i.get||i.set)?Object.defineProperty(t,o,i):t[o]=e[o]}return t.default=e,r&&r.set(e,t),t}e.Mesh.raycast=a.acceleratedRaycast;var l,p,w,c,m,f,h,g,y,v,b,M={useWebWorker:!0,radius:1,tube:.3,tubularSegments:250,radialSegments:250,p:3,q:5,displayHelper:!1,helperDepth:10},S=!1;function W(){h=document.getElementById("output"),(l=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),l.setSize(window.innerWidth,window.innerHeight),l.setClearColor(16763432,1),l.gammaOutput=!0,document.body.appendChild(l.domElement),(w=new e.Scene).fog=new e.Fog(16763432,20,60);var a=new e.DirectionalLight(16777215,1);a.position.set(1,1,1),w.add(a),w.add(new e.AmbientLight(11583173,.8)),(p=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,4),p.far=100,p.updateProjectionMatrix(),m=new e.Clock,v=new n.default,document.body.appendChild(v.dom),y=new e.Group,w.add(y);for(var o=0;o<400;o++){var i=new e.Mesh(new e.SphereBufferGeometry(1,32,32),new e.MeshBasicMaterial);i.position.set(Math.random()-.5,Math.random()-.5,Math.random()-.5).multiplyScalar(70),i.scale.setScalar(.3*Math.random()+.1),y.add(i)}b=new t.GenerateMeshBVHWorker;var d=(f=new r.GUI).addFolder("helper");d.add(M,"displayHelper").name("enabled").onChange(function(e){e&&g&&g.update()}),d.add(M,"helperDepth",1,50,1).onChange(function(e){g&&(g.depth=e,g.update())}),d.open();var s=f.addFolder("knot");s.add(M,"useWebWorker"),s.add(M,"radius",.5,2,.01),s.add(M,"tube",.2,1.2,.01),s.add(M,"tubularSegments",50,1e3,1),s.add(M,"radialSegments",5,1e3,1),s.add(M,"p",1,10,1),s.add(M,"q",1,10,1),s.add({regenerateKnot:G},"regenerateKnot").name("regenerate"),s.open(),G(),window.addEventListener("resize",function(){p.aspect=window.innerWidth/window.innerHeight,p.updateProjectionMatrix(),l.setSize(window.innerWidth,window.innerHeight)},!1)}function G(){if(!S){S=!0,c&&(c.material.dispose(),c.geometry.dispose(),y.remove(c),y.remove(g));var n=window.performance.now(),r=window.performance.now();c=new e.Mesh(new e.TorusKnotBufferGeometry(M.radius,M.tube,M.tubularSegments,M.radialSegments,M.p,M.q),new e.MeshStandardMaterial({color:new e.Color(5093036).convertSRGBToLinear(),roughness:.75}));var t,a=window.performance.now()-r,d=window.performance.now();if(M.useWebWorker)b.generate(c.geometry).then(function(e){c.geometry.boundsTree=e,y.add(c);var n=window.performance.now()-d;S=!1,(g=new o.default(c,0)).depth=M.helperDepth,M.displayHelper&&g.update(),y.add(g),h.textContent="Geometry Generation Time : ".concat(a.toFixed(3),"ms\n")+"BVH Generation Time : ".concat(n.toFixed(3),"ms\n")+"Frame Stall Time : ".concat(t.toFixed(3))}),t=window.performance.now()-n;else{c.geometry.boundsTree=new i.default(c.geometry,{lazyGeneration:!1}),t=window.performance.now()-n,y.add(c);var s=window.performance.now()-d;S=!1,(g=new o.default(c)).depth=M.helperDepth,g.update(),y.add(g),h.textContent="Geometry Generation Time : ".concat(a.toFixed(3),"ms\n")+"BVH Generation Time : ".concat(s.toFixed(3),"ms\n")+"Frame Stall Time : ".concat(t.toFixed(3))}}}function x(){v.update(),requestAnimationFrame(x);var e=m.getDelta();y.rotation.x+=.4*e,y.rotation.y+=.6*e,g&&(g.visible=M.displayHelper),l.render(w,p)}W(),x();
 },{"three":"dKqR","stats.js":"dnrf","dat.gui":"KkZG","../src/workers/GenerateMeshBVHWorker.js":"dbR2","../src/index.js":"uBxZ","../src/MeshBVHVisualizer.js":"jNwr","../src/MeshBVH.js":"nIyY"}]},{},["ODc6"], null)
\ No newline at end of file
diff --git a/example/bundle/asyncGenerate.html b/example/bundle/asyncGenerate.html
index c05dcda16..079691e54 100644
--- a/example/bundle/asyncGenerate.html
+++ b/example/bundle/asyncGenerate.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden;font-family:monospace}canvas{width:100%;height:100%}#output{color:#956b00;position:absolute;left:10px;bottom:10px;white-space:pre}</style></head><body> <div id="output"></div> <script src="asyncGenerate.4a48c6e8.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/characterMovement.725f956b.js b/example/bundle/characterMovement.725f956b.js
index c87f5e675..54e8bebf3 100644
--- a/example/bundle/characterMovement.725f956b.js
+++ b/example/bundle/characterMovement.725f956b.js
@@ -12,7 +12,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 var define;
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property "'+n+'"');var i=void 0;if(o.color)i=new P(t,n);else{var r=[t,n].concat(o.factoryArgs);i=M.apply(e,r)}o.before instanceof y&&(o.before=o.before.__li),le(e,i),A.addClass(i.domElement,"c");var s=document.createElement("span");A.addClass(s,"property-name"),s.innerHTML=i.property;var a=document.createElement("div");a.appendChild(s),a.appendChild(i.domElement);var l=ie(e,a,o.before);return A.addClass(l,oe.CLASS_CONTROLLER_ROW),i instanceof P?A.addClass(l,"color"):A.addClass(l,u(i.getValue())),ae(e,l,i),e.__controllers.push(i),i}function ce(e,t){return document.location.href+"."+t}function ue(e,t,n){var o=document.createElement("option");o.innerHTML=t,o.value=t,e.__preset_select.appendChild(o),n&&(e.__preset_select.selectedIndex=e.__preset_select.length-1)}function _e(e,t){t.style.display=e.useLocalStorage?"block":"none"}function he(e){var t=e.__save_row=document.createElement("li");A.addClass(e.domElement,"has-save"),e.__ul.insertBefore(t,e.__ul.firstChild),A.addClass(t,"save-row");var n=document.createElement("span");n.innerHTML="&nbsp;",A.addClass(n,"button gears");var o=document.createElement("span");o.innerHTML="Save",A.addClass(o,"button"),A.addClass(o,"save");var r=document.createElement("span");r.innerHTML="New",A.addClass(r,"button"),A.addClass(r,"save-as");var s=document.createElement("span");s.innerHTML="Revert",A.addClass(s,"button"),A.addClass(s,"revert");var a=e.__preset_select=document.createElement("select");if(e.load&&e.load.remembered?i.each(e.load.remembered,function(t,n){ue(e,n,n===e.preset)}):ue(e,Q,!1),A.bind(a,"change",function(){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].innerHTML=e.__preset_select[t].value;e.preset=this.value}),t.appendChild(a),t.appendChild(n),t.appendChild(o),t.appendChild(r),t.appendChild(s),q){var l=document.getElementById("dg-local-explain"),d=document.getElementById("dg-local-storage");document.getElementById("dg-save-locally").style.display="block","true"===localStorage.getItem(ce(e,"isLocal"))&&d.setAttribute("checked","checked"),_e(e,l),A.bind(d,"change",function(){e.useLocalStorage=!e.useLocalStorage,_e(e,l)})}var c=document.getElementById("dg-new-constructor");A.bind(c,"keydown",function(e){!e.metaKey||67!==e.which&&67!==e.keyCode||Z.hide()}),A.bind(n,"click",function(){c.innerHTML=JSON.stringify(e.getSaveObject(),void 0,2),Z.show(),c.focus(),c.select()}),A.bind(o,"click",function(){e.save()}),A.bind(r,"click",function(){var t=prompt("Enter a new preset name.");t&&e.saveAs(t)}),A.bind(s,"click",function(){e.revert()})}function pe(e){var t=void 0;function n(n){return n.preventDefault(),e.width+=t-n.clientX,e.onResize(),t=n.clientX,!1}function o(){A.removeClass(e.__closeButton,oe.CLASS_DRAG),A.unbind(window,"mousemove",n),A.unbind(window,"mouseup",o)}function r(i){return i.preventDefault(),t=i.clientX,A.addClass(e.__closeButton,oe.CLASS_DRAG),A.bind(window,"mousemove",n),A.bind(window,"mouseup",o),!1}e.__resize_handle=document.createElement("div"),i.extend(e.__resize_handle.style,{width:"6px",marginLeft:"-3px",height:"200px",cursor:"ew-resize",position:"absolute"}),A.bind(e.__resize_handle,"mousedown",r),A.bind(e.__closeButton,"mousedown",r),e.domElement.insertBefore(e.__resize_handle,e.domElement.firstElementChild)}function fe(e,t){e.domElement.style.width=t+"px",e.__save_row&&e.autoPlace&&(e.__save_row.style.width=t+"px"),e.__closeButton&&(e.__closeButton.style.width=t+"px")}function me(e,t){var n={};return i.each(e.__rememberedObjects,function(o,r){var s={},a=e.__rememberedObjectIndecesToControllers[r];i.each(a,function(e,n){s[n]=t?e.initialValue:e.getValue()}),n[r]=s}),n}function ge(e){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].value===e.preset&&(e.__preset_select.selectedIndex=t)}function be(e){0!==e.length&&U.call(window,function(){be(e)}),i.each(e,function(e){e.updateDisplay()})}oe.toggleHide=function(){te=!te,i.each(ne,function(e){e.domElement.style.display=te?"none":""})},oe.CLASS_AUTO_PLACE="a",oe.CLASS_AUTO_PLACE_CONTAINER="ac",oe.CLASS_MAIN="main",oe.CLASS_CONTROLLER_ROW="cr",oe.CLASS_TOO_TALL="taller-than-window",oe.CLASS_CLOSED="closed",oe.CLASS_CLOSE_BUTTON="close-button",oe.CLASS_CLOSE_TOP="close-top",oe.CLASS_CLOSE_BOTTOM="close-bottom",oe.CLASS_DRAG="drag",oe.DEFAULT_WIDTH=245,oe.TEXT_CLOSED="Close Controls",oe.TEXT_OPEN="Open Controls",oe._keydownHandler=function(e){"text"===document.activeElement.type||e.which!==J&&e.keyCode!==J||oe.toggleHide()},A.bind(window,"keydown",oe._keydownHandler,!1),i.extend(oe.prototype,{add:function(e,t){return de(this,e,t,{factoryArgs:Array.prototype.slice.call(arguments,2)})},addColor:function(e,t){return de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
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null!==t&&{space:"HEX",hex:parseInt("0x"+t[1].toString()+t[1].toString()+t[2].toString()+t[2].toString()+t[3].toString()+t[3].toString(),0)}},write:t},SIX_CHAR_HEX:{read:function(e){var t=e.match(/^#([A-F0-9]{6})$/i);return null!==t&&{space:"HEX",hex:parseInt("0x"+t[1].toString(),0)}},write:t},CSS_RGB:{read:function(e){var t=e.match(/^rgb\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/);return null!==t&&{space:"RGB",r:parseFloat(t[1]),g:parseFloat(t[2]),b:parseFloat(t[3])}},write:t},CSS_RGBA:{read:function(e){var t=e.match(/^rgba\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/);return null!==t&&{space:"RGB",r:parseFloat(t[1]),g:parseFloat(t[2]),b:parseFloat(t[3]),a:parseFloat(t[4])}},write:t}}},{litmus:i.isNumber,conversions:{HEX:{read:function(e){return{space:"HEX",hex:e,conversionName:"HEX"}},write:function(e){return e.hex}}}},{litmus:i.isArray,conversions:{RGB_ARRAY:{read:function(e){return 3===e.length&&{space:"RGB",r:e[0],g:e[1],b:e[2]}},write:function(e){return[e.r,e.g,e.b]}},RGBA_ARRAY:{read:function(e){return 4===e.length&&{space:"RGB",r:e[0],g:e[1],b:e[2],a:e[3]}},write:function(e){return[e.r,e.g,e.b,e.a]}}}},{litmus:i.isObject,conversions:{RGBA_OBJ:{read:function(e){return!!(i.isNumber(e.r)&&i.isNumber(e.g)&&i.isNumber(e.b)&&i.isNumber(e.a))&&{space:"RGB",r:e.r,g:e.g,b:e.b,a:e.a}},write:function(e){return{r:e.r,g:e.g,b:e.b,a:e.a}}},RGB_OBJ:{read:function(e){return!!(i.isNumber(e.r)&&i.isNumber(e.g)&&i.isNumber(e.b))&&{space:"RGB",r:e.r,g:e.g,b:e.b}},write:function(e){return{r:e.r,g:e.g,b:e.b}}},HSVA_OBJ:{read:function(e){return!!(i.isNumber(e.h)&&i.isNumber(e.s)&&i.isNumber(e.v)&&i.isNumber(e.a))&&{space:"HSV",h:e.h,s:e.s,v:e.v,a:e.a}},write:function(e){return{h:e.h,s:e.s,v:e.v,a:e.a}}},HSV_OBJ:{read:function(e){return!!(i.isNumber(e.h)&&i.isNumber(e.s)&&i.isNumber(e.v))&&{space:"HSV",h:e.h,s:e.s,v:e.v}},write:function(e){return{h:e.h,s:e.s,v:e.v}}}}}],s=void 0,a=void 0,l=function(){a=!1;var e=arguments.length>1?i.toArray(arguments):arguments[0];return i.each(r,function(t){if(t.litmus(e))return i.each(t.conversions,function(t,n){if(s=t.read(e),!1===a&&!1!==s)return a=s,s.conversionName=n,s.conversion=t,i.BREAK}),i.BREAK}),a},d=void 0,c={hsv_to_rgb:function(e,t,n){var o=Math.floor(e/60)%6,i=e/60-Math.floor(e/60),r=n*(1-t),s=n*(1-i*t),a=n*(1-(1-i)*t),l=[[n,a,r],[s,n,r],[r,n,a],[r,s,n],[a,r,n],[n,r,s]][o];return{r:255*l[0],g:255*l[1],b:255*l[2]}},rgb_to_hsv:function(e,t,n){var o=Math.min(e,t,n),i=Math.max(e,t,n),r=i-o,s=void 0;return 0===i?{h:NaN,s:0,v:0}:(s=e===i?(t-n)/r:t===i?2+(n-e)/r:4+(e-t)/r,(s/=6)<0&&(s+=1),{h:360*s,s:r/i,v:i/255})},rgb_to_hex:function(e,t,n){var o=this.hex_with_component(0,2,e);return o=this.hex_with_component(o,1,t),o=this.hex_with_component(o,0,n)},component_from_hex:function(e,t){return e>>8*t&255},hex_with_component:function(e,t,n){return n<<(d=8*t)|e&~(255<<d)}},u="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},_=function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")},h=function(){function e(e,t){for(var n=0;n<t.length;n++){var o=t[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(e,o.key,o)}}return function(t,n,o){return n&&e(t.prototype,n),o&&e(t,o),t}}(),p=function e(t,n,o){null===t&&(t=Function.prototype);var i=Object.getOwnPropertyDescriptor(t,n);if(void 0===i){var r=Object.getPrototypeOf(t);return null===r?void 0:e(r,n,o)}if("value"in i)return i.value;var s=i.get;return void 0!==s?s.call(o):void 0},f=function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof 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For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
 },{}],"tuIt":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.CONTAINED=exports.INTERSECTED=exports.NOT_INTERSECTED=exports.SAH=exports.AVERAGE=exports.CENTER=void 0;var r=0;exports.CENTER=r;var E=1;exports.AVERAGE=E;var e=2;exports.SAH=e;var t=0;exports.NOT_INTERSECTED=t;var o=1;exports.INTERSECTED=o;var s=2;exports.CONTAINED=s;
 },{}],"qYFu":[function(require,module,exports) {
@@ -20,15 +20,15 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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 "use strict";function r(r){var e=new Float32Array(6);return e[0]=r.min.x,e[1]=r.min.y,e[2]=r.min.z,e[3]=r.max.x,e[4]=r.max.y,e[5]=r.max.z,e}function e(r,e){return e.min.x=r[0],e.min.y=r[1],e.min.z=r[2],e.max.x=r[3],e.max.y=r[4],e.max.z=r[5],e}function n(r){for(var e=-1,n=-1/0,t=0;t<3;t++){var x=r[t+3]-r[t];x>n&&(n=x,e=t)}return e}Object.defineProperty(exports,"__esModule",{value:!0}),exports.boxToArray=r,exports.arrayToBox=e,exports.getLongestEdgeIndex=n;
 },{}],"IMAa":[function(require,module,exports) {
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -40,9 +40,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. 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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
@@ -50,5 +50,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
 },{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"GkUD":[function(require,module,exports) {
-"use strict";var e=p(require("three")),t=require("three/examples/jsm/geometries/RoundedBoxGeometry.js"),a=require("three/examples/jsm/loaders/GLTFLoader.js"),r=require("three/examples/jsm/controls/OrbitControls.js"),i=require("three/examples/jsm/utils/BufferGeometryUtils.js"),n=d(require("stats.js")),o=require("dat.gui"),s=require("../src/index.js");function d(e){return e&&e.__esModule?e:{default:e}}function l(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return l=function(){return e},e}function p(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var t=l();if(t&&t.has(e))return t.get(e);var a={},r=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var i in e)if(Object.prototype.hasOwnProperty.call(e,i)){var n=r?Object.getOwnPropertyDescriptor(e,i):null;n&&(n.get||n.set)?Object.defineProperty(a,i,n):a[i]=e[i]}return a.default=e,t&&t.set(e,a),a}var c,u,m,w,y,h,f,g,v,S,x,b={firstPerson:!1,displayCollider:!1,displayBVH:!1,visualizeDepth:10,gravity:-30,playerSpeed:10,physicsSteps:5,reset:H},M=!1,V=!1,P=!1,B=!1,j=!1,C=new e.Vector3,W=new e.Vector3(0,1,0),A=new e.Vector3,z=new e.Vector3,G=new e.Box3,k=new e.Matrix4,D=new e.Line3;function L(){(c=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),c.setSize(window.innerWidth,window.innerHeight),c.setClearColor(1251612,1),c.shadowMap.enabled=!0,c.shadowMap.type=e.PCFSoftShadowMap,c.gammaOutput=!0,document.body.appendChild(c.domElement),(m=new e.Scene).fog=new e.Fog(1251612,20,70);var a=new e.DirectionalLight(16777215,1);a.position.set(1,1.5,1).multiplyScalar(50),a.shadow.mapSize.setScalar(2048),a.shadow.bias=-1e-4,a.shadow.normalBias=.05,a.castShadow=!0;var i=a.shadow.camera;i.bottom=i.left=-30,i.top=30,i.right=45,m.add(a),m.add(new e.HemisphereLight(16777215,2241348,.4)),(u=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(10,10,-10),u.far=100,u.updateProjectionMatrix(),window.camera=u,w=new e.Clock,x=new r.OrbitControls(u,c.domElement),h=new n.default,document.body.appendChild(h.dom),O(),(S=new e.Mesh(new t.RoundedBoxGeometry(1,2,1,10,.5),new e.MeshStandardMaterial)).geometry.translate(0,-.5,0),S.capsuleInfo={radius:.5,segment:new e.Line3(new e.Vector3,new e.Vector3(0,-1,0))},S.castShadow=!0,S.receiveShadow=!0,S.material.shadowSide=2,m.add(S),H(),(y=new o.GUI).add(b,"firstPerson").onChange(function(e){e||u.position.sub(x.target).normalize().multiplyScalar(10).add(x.target)});var s=y.addFolder("Visualization");s.add(b,"displayCollider"),s.add(b,"displayBVH"),s.add(b,"visualizeDepth",1,20,1).onChange(function(e){v.depth=e,v.update()}),s.open();var d=y.addFolder("Player");d.add(b,"physicsSteps",0,30,1),d.add(b,"gravity",-100,100,.01).onChange(function(e){b.gravity=parseFloat(e)}),d.add(b,"playerSpeed",1,20),d.open(),y.add(b,"reset"),y.open(),window.addEventListener("resize",function(){u.aspect=window.innerWidth/window.innerHeight,u.updateProjectionMatrix(),c.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("keydown",function(e){switch(e.code){case"KeyW":V=!0;break;case"KeyS":P=!0;break;case"KeyD":j=!0;break;case"KeyA":B=!0;break;case"Space":M&&(C.y=10)}}),window.addEventListener("keyup",function(e){switch(e.code){case"KeyW":V=!1;break;case"KeyS":P=!1;break;case"KeyD":j=!1;break;case"KeyA":B=!1}})}function O(){(new a.GLTFLoader).load("../models/dungeon_low_poly_game_level_challenge/scene.gltf",function(t){var a=t.scene;a.scale.setScalar(.01);var r=new e.Box3;r.setFromObject(a),r.getCenter(a.position).negate(),a.updateMatrixWorld(!0);var n={};a.traverse(function(e){if(!(/Boss/.test(e.name)||/Enemie/.test(e.name)||/Shield/.test(e.name)||/Sword/.test(e.name)||/Character/.test(e.name)||/Gate/.test(e.name)||/Cube/.test(e.name)||e.material&&1===e.material.color.r)&&e.isMesh){var t=e.material.color.getHex();n[t]=n[t]||[],n[t].push(e)}}),f=new e.Group;var o=function(t){var a=n[t],r=[];if(a.forEach(function(e){if(0!==e.material.emissive.r)f.attach(e);else{var t=e.geometry.clone();t.applyMatrix4(e.matrixWorld),r.push(t)}}),r.length){var o=i.BufferGeometryUtils.mergeBufferGeometries(r),s=new e.Mesh(o,new e.MeshStandardMaterial({color:parseInt(t),shadowSide:2}));s.castShadow=!0,s.receiveShadow=!0,s.material.shadowSide=2,f.add(s)}};for(var d in n)o(d);var l=[];f.updateMatrixWorld(!0),f.traverse(function(e){if(e.geometry){var t=e.geometry.clone();for(var a in t.applyMatrix4(e.matrixWorld),t.attributes)"position"!==a&&t.deleteAttribute(a);l.push(t)}});var p=i.BufferGeometryUtils.mergeBufferGeometries(l,!1);p.boundsTree=new s.MeshBVH(p,{lazyGeneration:!1}),(g=new e.Mesh(p)).material.wireframe=!0,g.material.opacity=.5,g.material.transparent=!0,v=new s.MeshBVHVisualizer(g,b.visualizeDepth),m.add(v),m.add(g),m.add(f)})}function H(){C.set(0,0,0),S.position.set(15.75,-3,30),u.position.sub(x.target),x.target.copy(S.position),u.position.add(S.position),x.update()}function q(e){window.playerVelocity=C,C.y+=e*b.gravity,S.position.addScaledVector(C,e);var t=x.getAzimuthalAngle();V&&(A.set(0,0,-1).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),P&&(A.set(0,0,1).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),B&&(A.set(-1,0,0).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),j&&(A.set(1,0,0).applyAxisAngle(W,t),S.position.addScaledVector(A,b.playerSpeed*e)),S.updateMatrixWorld();var a=S.capsuleInfo;G.makeEmpty(),k.copy(g.matrixWorld).invert(),D.copy(a.segment),D.start.applyMatrix4(S.matrixWorld).applyMatrix4(k),D.end.applyMatrix4(S.matrixWorld).applyMatrix4(k),G.expandByPoint(D.start),G.expandByPoint(D.end),G.min.addScalar(-a.radius),G.max.addScalar(a.radius),g.geometry.boundsTree.shapecast(g,{intersectsBounds:function(e){return e.intersectsBox(G)},intersectsTriangle:function(e){var t=A,r=z,i=e.closestPointToSegment(D,t,r);if(i<a.radius){var n=a.radius-i,o=r.sub(t).normalize();D.start.addScaledVector(o,n),D.end.addScaledVector(o,n)}}});var r=A;r.copy(D.start).applyMatrix4(g.matrixWorld);var i=z;i.subVectors(r,S.position),S.position.copy(r),(M=i.y>Math.abs(e*C.y*.25))?C.set(0,0,0):(i.normalize(),C.addScaledVector(i,-i.dot(C))),u.position.sub(x.target),x.target.copy(S.position),u.position.add(S.position),S.position.y<-25&&H()}function F(){h.update(),requestAnimationFrame(F);var e=Math.min(w.getDelta(),.1);if(b.firstPerson?(x.maxPolarAngle=Math.PI,x.minDistance=1e-4,x.maxDistance=1e-4):(x.maxPolarAngle=Math.PI/2,x.minDistance=1,x.maxDistance=20),g){g.visible=b.displayCollider,v.visible=b.displayBVH;for(var t=b.physicsSteps,a=0;a<t;a++)q(e/t)}x.update(),c.render(m,u)}L(),F();
+"use strict";var e=p(require("three")),t=require("three/examples/jsm/geometries/RoundedBoxGeometry.js"),a=require("three/examples/jsm/loaders/GLTFLoader.js"),r=require("three/examples/jsm/controls/OrbitControls.js"),i=require("three/examples/jsm/utils/BufferGeometryUtils.js"),n=d(require("stats.js")),o=require("dat.gui"),s=require("../src/index.js");function d(e){return e&&e.__esModule?e:{default:e}}function l(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,a=new WeakMap;return(l=function(e){return e?a:t})(e)}function p(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var a=l(t);if(a&&a.has(e))return a.get(e);var r={},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var n in e)if("default"!==n&&Object.prototype.hasOwnProperty.call(e,n)){var o=i?Object.getOwnPropertyDescriptor(e,n):null;o&&(o.get||o.set)?Object.defineProperty(r,n,o):r[n]=e[n]}return r.default=e,a&&a.set(e,r),r}var c,u,m,w,y,f,h,g,v,S,x,b={firstPerson:!1,displayCollider:!1,displayBVH:!1,visualizeDepth:10,gravity:-30,playerSpeed:10,physicsSteps:5,reset:H},M=!1,V=!1,P=!1,B=!1,j=!1,W=new e.Vector3,C=new e.Vector3(0,1,0),A=new e.Vector3,k=new e.Vector3,z=new e.Box3,G=new e.Matrix4,D=new e.Line3;function L(){(c=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),c.setSize(window.innerWidth,window.innerHeight),c.setClearColor(1251612,1),c.shadowMap.enabled=!0,c.shadowMap.type=e.PCFSoftShadowMap,c.gammaOutput=!0,document.body.appendChild(c.domElement),(m=new e.Scene).fog=new e.Fog(1251612,20,70);var a=new e.DirectionalLight(16777215,1);a.position.set(1,1.5,1).multiplyScalar(50),a.shadow.mapSize.setScalar(2048),a.shadow.bias=-1e-4,a.shadow.normalBias=.05,a.castShadow=!0;var i=a.shadow.camera;i.bottom=i.left=-30,i.top=30,i.right=45,m.add(a),m.add(new e.HemisphereLight(16777215,2241348,.4)),(u=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(10,10,-10),u.far=100,u.updateProjectionMatrix(),window.camera=u,w=new e.Clock,x=new r.OrbitControls(u,c.domElement),f=new n.default,document.body.appendChild(f.dom),O(),(S=new e.Mesh(new t.RoundedBoxGeometry(1,2,1,10,.5),new e.MeshStandardMaterial)).geometry.translate(0,-.5,0),S.capsuleInfo={radius:.5,segment:new e.Line3(new e.Vector3,new e.Vector3(0,-1,0))},S.castShadow=!0,S.receiveShadow=!0,S.material.shadowSide=2,m.add(S),H(),(y=new o.GUI).add(b,"firstPerson").onChange(function(e){e||u.position.sub(x.target).normalize().multiplyScalar(10).add(x.target)});var s=y.addFolder("Visualization");s.add(b,"displayCollider"),s.add(b,"displayBVH"),s.add(b,"visualizeDepth",1,20,1).onChange(function(e){v.depth=e,v.update()}),s.open();var d=y.addFolder("Player");d.add(b,"physicsSteps",0,30,1),d.add(b,"gravity",-100,100,.01).onChange(function(e){b.gravity=parseFloat(e)}),d.add(b,"playerSpeed",1,20),d.open(),y.add(b,"reset"),y.open(),window.addEventListener("resize",function(){u.aspect=window.innerWidth/window.innerHeight,u.updateProjectionMatrix(),c.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("keydown",function(e){switch(e.code){case"KeyW":V=!0;break;case"KeyS":P=!0;break;case"KeyD":j=!0;break;case"KeyA":B=!0;break;case"Space":M&&(W.y=10)}}),window.addEventListener("keyup",function(e){switch(e.code){case"KeyW":V=!1;break;case"KeyS":P=!1;break;case"KeyD":j=!1;break;case"KeyA":B=!1}})}function O(){(new a.GLTFLoader).load("../models/dungeon_low_poly_game_level_challenge/scene.gltf",function(t){var a=t.scene;a.scale.setScalar(.01);var r=new e.Box3;r.setFromObject(a),r.getCenter(a.position).negate(),a.updateMatrixWorld(!0);var n={};a.traverse(function(e){if(!(/Boss/.test(e.name)||/Enemie/.test(e.name)||/Shield/.test(e.name)||/Sword/.test(e.name)||/Character/.test(e.name)||/Gate/.test(e.name)||/Cube/.test(e.name)||e.material&&1===e.material.color.r)&&e.isMesh){var t=e.material.color.getHex();n[t]=n[t]||[],n[t].push(e)}}),h=new e.Group;var o=function(t){var a=n[t],r=[];if(a.forEach(function(e){if(0!==e.material.emissive.r)h.attach(e);else{var t=e.geometry.clone();t.applyMatrix4(e.matrixWorld),r.push(t)}}),r.length){var o=i.BufferGeometryUtils.mergeBufferGeometries(r),s=new e.Mesh(o,new e.MeshStandardMaterial({color:parseInt(t),shadowSide:2}));s.castShadow=!0,s.receiveShadow=!0,s.material.shadowSide=2,h.add(s)}};for(var d in n)o(d);var l=[];h.updateMatrixWorld(!0),h.traverse(function(e){if(e.geometry){var t=e.geometry.clone();for(var a in t.applyMatrix4(e.matrixWorld),t.attributes)"position"!==a&&t.deleteAttribute(a);l.push(t)}});var p=i.BufferGeometryUtils.mergeBufferGeometries(l,!1);p.boundsTree=new s.MeshBVH(p,{lazyGeneration:!1}),(g=new e.Mesh(p)).material.wireframe=!0,g.material.opacity=.5,g.material.transparent=!0,v=new s.MeshBVHVisualizer(g,b.visualizeDepth),m.add(v),m.add(g),m.add(h)})}function H(){W.set(0,0,0),S.position.set(15.75,-3,30),u.position.sub(x.target),x.target.copy(S.position),u.position.add(S.position),x.update()}function q(e){window.playerVelocity=W,W.y+=e*b.gravity,S.position.addScaledVector(W,e);var t=x.getAzimuthalAngle();V&&(A.set(0,0,-1).applyAxisAngle(C,t),S.position.addScaledVector(A,b.playerSpeed*e)),P&&(A.set(0,0,1).applyAxisAngle(C,t),S.position.addScaledVector(A,b.playerSpeed*e)),B&&(A.set(-1,0,0).applyAxisAngle(C,t),S.position.addScaledVector(A,b.playerSpeed*e)),j&&(A.set(1,0,0).applyAxisAngle(C,t),S.position.addScaledVector(A,b.playerSpeed*e)),S.updateMatrixWorld();var a=S.capsuleInfo;z.makeEmpty(),G.copy(g.matrixWorld).invert(),D.copy(a.segment),D.start.applyMatrix4(S.matrixWorld).applyMatrix4(G),D.end.applyMatrix4(S.matrixWorld).applyMatrix4(G),z.expandByPoint(D.start),z.expandByPoint(D.end),z.min.addScalar(-a.radius),z.max.addScalar(a.radius),g.geometry.boundsTree.shapecast(g,{intersectsBounds:function(e){return e.intersectsBox(z)},intersectsTriangle:function(e){var t=A,r=k,i=e.closestPointToSegment(D,t,r);if(i<a.radius){var n=a.radius-i,o=r.sub(t).normalize();D.start.addScaledVector(o,n),D.end.addScaledVector(o,n)}}});var r=A;r.copy(D.start).applyMatrix4(g.matrixWorld);var i=k;i.subVectors(r,S.position),S.position.copy(r),(M=i.y>Math.abs(e*W.y*.25))?W.set(0,0,0):(i.normalize(),W.addScaledVector(i,-i.dot(W))),u.position.sub(x.target),x.target.copy(S.position),u.position.add(S.position),S.position.y<-25&&H()}function F(){f.update(),requestAnimationFrame(F);var e=Math.min(w.getDelta(),.1);if(b.firstPerson?(x.maxPolarAngle=Math.PI,x.minDistance=1e-4,x.maxDistance=1e-4):(x.maxPolarAngle=Math.PI/2,x.minDistance=1,x.maxDistance=20),g){g.visible=b.displayCollider,v.visible=b.displayBVH;for(var t=b.physicsSteps,a=0;a<t;a++)q(e/t)}x.update(),c.render(m,u)}L(),F();
 },{"three":"dKqR","three/examples/jsm/geometries/RoundedBoxGeometry.js":"lYZT","three/examples/jsm/loaders/GLTFLoader.js":"O6i0","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/utils/BufferGeometryUtils.js":"Jcll","stats.js":"dnrf","dat.gui":"KkZG","../src/index.js":"uBxZ"}]},{},["GkUD"], null)
\ No newline at end of file
diff --git a/example/bundle/collectTriangles.9c45819a.js b/example/bundle/collectTriangles.9c45819a.js
index 7efcd7d0e..e8859ff1b 100644
--- a/example/bundle/collectTriangles.9c45819a.js
+++ b/example/bundle/collectTriangles.9c45819a.js
@@ -2,7 +2,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 
 var e=module.exports="undefined"!=typeof window&&window.Math==Math?window:"undefined"!=typeof self&&self.Math==Math?self:Function("return this")();"number"==typeof __g&&(__g=e);
 },{}],"ss9A":[function(require,module,exports) {
-var e=module.exports={version:"2.6.11"};"number"==typeof __e&&(__e=e);
+var e=module.exports={version:"2.6.12"};"number"==typeof __e&&(__e=e);
 },{}],"M7z6":[function(require,module,exports) {
 module.exports=function(o){return"object"==typeof o?null!==o:"function"==typeof o};
 },{}],"eT53":[function(require,module,exports) {
@@ -31,7 +31,7 @@ var o=0,t=Math.random();module.exports=function(n){return"Symbol(".concat(void 0
 module.exports=!1;
 },{}],"zGcK":[function(require,module,exports) {
 
-var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2019 Denis Pushkarev (zloirock.ru)"});
+var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2020 Denis Pushkarev (zloirock.ru)"});
 },{"./_core":"ss9A","./_global":"qf4T","./_library":"H21C"}],"d5RU":[function(require,module,exports) {
 module.exports=require("./_shared")("native-function-to-string",Function.toString);
 },{"./_shared":"zGcK"}],"PHot":[function(require,module,exports) {
@@ -78,7 +78,11 @@ var r=require("./_is-object"),e=require("./_is-array"),o=require("./_wks")("spec
 var r=require("./_array-species-constructor");module.exports=function(e,n){return new(r(e))(n)};
 },{"./_array-species-constructor":"NNbH"}],"AuPh":[function(require,module,exports) {
 var e=require("./_ctx"),r=require("./_iobject"),t=require("./_to-object"),i=require("./_to-length"),u=require("./_array-species-create");module.exports=function(n,c){var s=1==n,a=2==n,o=3==n,f=4==n,l=6==n,q=5==n||l,_=c||u;return function(u,c,h){for(var v,p,b=t(u),d=r(b),g=e(c,h,3),j=i(d.length),x=0,m=s?_(u,j):a?_(u,0):void 0;j>x;x++)if((q||x in d)&&(p=g(v=d[x],x,b),n))if(s)m[x]=p;else if(p)switch(n){case 3:return!0;case 5:return v;case 6:return x;case 2:m.push(v)}else if(f)return!1;return l?-1:o||f?f:m}};
-},{"./_ctx":"E3Kh","./_iobject":"nGau","./_to-object":"rfVX","./_to-length":"dJBs","./_array-species-create":"igas"}],"Qppk":[function(require,module,exports) {
+},{"./_ctx":"E3Kh","./_iobject":"nGau","./_to-object":"rfVX","./_to-length":"dJBs","./_array-species-create":"igas"}],"Hh2M":[function(require,module,exports) {
+"use strict";var l=require("./_fails");module.exports=function(n,u){return!!n&&l(function(){u?n.call(null,function(){},1):n.call(null)})};
+},{"./_fails":"BXiR"}],"GyG6":[function(require,module,exports) {
+"use strict";var r=require("./_export"),e=require("./_array-methods")(2);r(r.P+r.F*!require("./_strict-method")([].filter,!0),"Array",{filter:function(r){return e(this,r,arguments[1])}});
+},{"./_export":"izCb","./_array-methods":"AuPh","./_strict-method":"Hh2M"}],"Qppk":[function(require,module,exports) {
 "use strict";var r=require("./_export"),e=require("./_array-methods")(5),i="find",n=!0;i in[]&&Array(1)[i](function(){n=!1}),r(r.P+r.F*n,"Array",{find:function(r){return e(this,r,arguments.length>1?arguments[1]:void 0)}}),require("./_add-to-unscopables")(i);
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t&&o.appendChild(t),n?e.__ul.insertBefore(o,n):e.__ul.appendChild(o),e.onResize(),o}function re(e){A.unbind(window,"resize",e.__resizeHandler),e.saveToLocalStorageIfPossible&&A.unbind(window,"unload",e.saveToLocalStorageIfPossible)}function se(e,t){var n=e.__preset_select[e.__preset_select.selectedIndex];n.innerHTML=t?n.value+"*":n.value}function ae(e,t,n){if(n.__li=t,n.__gui=e,i.extend(n,{options:function(t){if(arguments.length>1){var o=n.__li.nextElementSibling;return n.remove(),de(e,n.object,n.property,{before:o,factoryArgs:[i.toArray(arguments)]})}if(i.isArray(t)||i.isObject(t)){var r=n.__li.nextElementSibling;return n.remove(),de(e,n.object,n.property,{before:r,factoryArgs:[t]})}},name:function(e){return n.__li.firstElementChild.firstElementChild.innerHTML=e,n},listen:function(){return n.__gui.listen(n),n},remove:function(){return n.__gui.remove(n),n}}),n instanceof H){var o=new 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l=document.getElementById("dg-local-explain"),d=document.getElementById("dg-local-storage");document.getElementById("dg-save-locally").style.display="block","true"===localStorage.getItem(ce(e,"isLocal"))&&d.setAttribute("checked","checked"),_e(e,l),A.bind(d,"change",function(){e.useLocalStorage=!e.useLocalStorage,_e(e,l)})}var c=document.getElementById("dg-new-constructor");A.bind(c,"keydown",function(e){!e.metaKey||67!==e.which&&67!==e.keyCode||Z.hide()}),A.bind(n,"click",function(){c.innerHTML=JSON.stringify(e.getSaveObject(),void 0,2),Z.show(),c.focus(),c.select()}),A.bind(o,"click",function(){e.save()}),A.bind(r,"click",function(){var t=prompt("Enter a new preset name.");t&&e.saveAs(t)}),A.bind(s,"click",function(){e.revert()})}function pe(e){var t=void 0;function n(n){return n.preventDefault(),e.width+=t-n.clientX,e.onResize(),t=n.clientX,!1}function o(){A.removeClass(e.__closeButton,oe.CLASS_DRAG),A.unbind(window,"mousemove",n),A.unbind(window,"mouseup",o)}function r(i){return i.preventDefault(),t=i.clientX,A.addClass(e.__closeButton,oe.CLASS_DRAG),A.bind(window,"mousemove",n),A.bind(window,"mouseup",o),!1}e.__resize_handle=document.createElement("div"),i.extend(e.__resize_handle.style,{width:"6px",marginLeft:"-3px",height:"200px",cursor:"ew-resize",position:"absolute"}),A.bind(e.__resize_handle,"mousedown",r),A.bind(e.__closeButton,"mousedown",r),e.domElement.insertBefore(e.__resize_handle,e.domElement.firstElementChild)}function fe(e,t){e.domElement.style.width=t+"px",e.__save_row&&e.autoPlace&&(e.__save_row.style.width=t+"px"),e.__closeButton&&(e.__closeButton.style.width=t+"px")}function me(e,t){var n={};return i.each(e.__rememberedObjects,function(o,r){var s={},a=e.__rememberedObjectIndecesToControllers[r];i.each(a,function(e,n){s[n]=t?e.initialValue:e.getValue()}),n[r]=s}),n}function ge(e){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].value===e.preset&&(e.__preset_select.selectedIndex=t)}function be(e){0!==e.length&&U.call(window,function(){be(e)}),i.each(e,function(e){e.updateDisplay()})}oe.toggleHide=function(){te=!te,i.each(ne,function(e){e.domElement.style.display=te?"none":""})},oe.CLASS_AUTO_PLACE="a",oe.CLASS_AUTO_PLACE_CONTAINER="ac",oe.CLASS_MAIN="main",oe.CLASS_CONTROLLER_ROW="cr",oe.CLASS_TOO_TALL="taller-than-window",oe.CLASS_CLOSED="closed",oe.CLASS_CLOSE_BUTTON="close-button",oe.CLASS_CLOSE_TOP="close-top",oe.CLASS_CLOSE_BOTTOM="close-bottom",oe.CLASS_DRAG="drag",oe.DEFAULT_WIDTH=245,oe.TEXT_CLOSED="Close Controls",oe.TEXT_OPEN="Open Controls",oe._keydownHandler=function(e){"text"===document.activeElement.type||e.which!==J&&e.keyCode!==J||oe.toggleHide()},A.bind(window,"keydown",oe._keydownHandler,!1),i.extend(oe.prototype,{add:function(e,t){return de(this,e,t,{factoryArgs:Array.prototype.slice.call(arguments,2)})},addColor:function(e,t){return de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
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i.preventDefault(),t=i.clientX,A.addClass(e.__closeButton,oe.CLASS_DRAG),A.bind(window,"mousemove",n),A.bind(window,"mouseup",o),!1}e.__resize_handle=document.createElement("div"),i.extend(e.__resize_handle.style,{width:"6px",marginLeft:"-3px",height:"200px",cursor:"ew-resize",position:"absolute"}),A.bind(e.__resize_handle,"mousedown",r),A.bind(e.__closeButton,"mousedown",r),e.domElement.insertBefore(e.__resize_handle,e.domElement.firstElementChild)}function fe(e,t){e.domElement.style.width=t+"px",e.__save_row&&e.autoPlace&&(e.__save_row.style.width=t+"px"),e.__closeButton&&(e.__closeButton.style.width=t+"px")}function me(e,t){var n={};return i.each(e.__rememberedObjects,function(o,r){var s={},a=e.__rememberedObjectIndecesToControllers[r];i.each(a,function(e,n){s[n]=t?e.initialValue:e.getValue()}),n[r]=s}),n}function ge(e){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].value===e.preset&&(e.__preset_select.selectedIndex=t)}function be(e){0!==e.length&&U.call(window,function(){be(e)}),i.each(e,function(e){e.updateDisplay()})}oe.toggleHide=function(){te=!te,i.each(ne,function(e){e.domElement.style.display=te?"none":""})},oe.CLASS_AUTO_PLACE="a",oe.CLASS_AUTO_PLACE_CONTAINER="ac",oe.CLASS_MAIN="main",oe.CLASS_CONTROLLER_ROW="cr",oe.CLASS_TOO_TALL="taller-than-window",oe.CLASS_CLOSED="closed",oe.CLASS_CLOSE_BUTTON="close-button",oe.CLASS_CLOSE_TOP="close-top",oe.CLASS_CLOSE_BOTTOM="close-bottom",oe.CLASS_DRAG="drag",oe.DEFAULT_WIDTH=245,oe.TEXT_CLOSED="Close Controls",oe.TEXT_OPEN="Open Controls",oe._keydownHandler=function(e){"text"===document.activeElement.type||e.which!==J&&e.keyCode!==J||oe.toggleHide()},A.bind(window,"keydown",oe._keydownHandler,!1),i.extend(oe.prototype,{add:function(e,t){return de(this,e,t,{factoryArgs:Array.prototype.slice.call(arguments,2)})},addColor:function(e,t){return de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
 },{}],"dKqR":[function(require,module,exports) {
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0,exports.ShapeBufferGeometry=exports.Shape=exports.ShadowMaterial=exports.ShaderLib=exports.ShaderChunk=exports.SceneUtils=exports.Scene=exports.SRGB8_ALPHA8_ASTC_8x8_Format=exports.SRGB8_ALPHA8_ASTC_8x6_Format=exports.SRGB8_ALPHA8_ASTC_8x5_Format=exports.SRGB8_ALPHA8_ASTC_6x6_Format=exports.SRGB8_ALPHA8_ASTC_6x5_Format=exports.SRGB8_ALPHA8_ASTC_5x5_Format=exports.SRGB8_ALPHA8_ASTC_5x4_Format=exports.SRGB8_ALPHA8_ASTC_4x4_Format=exports.SRGB8_ALPHA8_ASTC_12x12_Format=exports.SRGB8_ALPHA8_ASTC_12x10_Format=exports.SRGB8_ALPHA8_ASTC_10x8_Format=exports.SRGB8_ALPHA8_ASTC_10x6_Format=exports.SRGB8_ALPHA8_ASTC_10x5_Format=exports.SRGB8_ALPHA8_ASTC_10x10_Format=exports.RingGeometry=exports.RingBufferGeometry=exports.ReverseSubtractEquation=exports.ReplaceStencilOp=exports.RepeatWrapping=exports.ReinhardToneMapping=exports.RedIntegerFormat=exports.RedFormat=exports.RectAreaLight=exports.Ray=exports.RawShaderMaterial=exports.RGIntegerFormat=exports.RGFormat=exports.RGB_S3TC_DXT1_Format=exports.RGB_PVRTC_4BPPV1_Format=exports.RGB_PVRTC_2BPPV1_Format=exports.RGB_ETC2_Format=exports.RGB_ETC1_Format=exports.RGBM7Encoding=exports.RGBM16Encoding=exports.RGBIntegerFormat=exports.RGBFormat=exports.RGBEFormat=exports.RGBEEncoding=exports.RGBDEncoding=exports.RGBA_S3TC_DXT5_Format=exports.RGBA_S3TC_DXT3_Format=exports.RGBA_S3TC_DXT1_Format=exports.RGBA_PVRTC_4BPPV1_Format=exports.RGBA_PVRTC_2BPPV1_Format=exports.RGBA_ETC2_EAC_Format=exports.RGBA_BPTC_Format=exports.RGBA_ASTC_8x8_Format=exports.RGBA_ASTC_8x6_Format=exports.RGBA_ASTC_8x5_Format=exports.RGBA_ASTC_6x6_Format=exports.RGBA_ASTC_6x5_Format=exports.RGBA_ASTC_5x5_Format=exports.RGBA_ASTC_5x4_Format=exports.RGBA_ASTC_4x4_Format=exports.RGBA_ASTC_12x12_Format=exports.RGBA_ASTC_12x10_Format=exports.RGBA_ASTC_10x8_Format=exports.RGBA_ASTC_10x6_Format=exports.RGBA_ASTC_10x5_Format=exports.RGBA_ASTC_10x10_Format=exports.RGBAIntegerFormat=exports.RGBAFormat=exports.RGBADepthPacking=exports.REVISION=exports.QuaternionKeyframeTrack=exports.Quaternion=exports.QuadraticBezierCurve3=exports.QuadraticBezierCurve=exports.PropertyMixer=exports.PositionalAudio=exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=exports.PolarGridHelper=exports.PointsMaterial=exports.PointLightHelper=exports.PointLight=exports.PlaneHelper=exports.PlaneGeometry=exports.PlaneBufferGeometry=exports.Plane=exports.Path=exports.PMREMGenerator=exports.PCFSoftShadowMap=exports.PCFShadowMap=exports.OrthographicCamera=exports.OneMinusSrcColorFactor=exports.OneMinusSrcAlphaFactor=exports.OneMinusDstColorFactor=exports.OneMinusDstAlphaFactor=exports.OneFactor=exports.OctahedronGeometry=exports.OctahedronBufferGeometry=exports.ObjectSpaceNormalMap=void 0,exports.sRGBEncoding=exports.ZeroStencilOp=exports.ZeroSlopeEnding=exports.ZeroFactor=exports.ZeroCurvatureEnding=exports.WrapAroundEnding=exports.WireframeGeometry=exports.WebGLRenderTarget=exports.WebGLMultisampleRenderTarget=exports.WebGLCubeRenderTarget=exports.WebGL1Renderer=exports.VideoTexture=exports.VertexColors=exports.VectorKeyframeTrack=exports.Vector4=exports.Vector3=exports.Vector2=exports.VSMShadowMap=exports.UnsignedShortType=exports.UnsignedShort565Type=exports.UnsignedShort5551Type=exports.UnsignedShort4444Type=exports.UnsignedIntType=exports.UnsignedInt248Type=exports.UnsignedByteType=exports.UniformsUtils=exports.UniformsLib=exports.Uniform=exports.UVMapping=exports.TubeGeometry=exports.TubeBufferGeometry=exports.TrianglesDrawMode=exports.TriangleStripDrawMode=exports.TriangleFanDrawMode=exports.Triangle=exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=exports.TorusGeometry=exports.TorusBufferGeometry=exports.Texture=exports.TextGeometry=exports.TextBufferGeometry=exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=exports.TangentSpaceNormalMap=exports.TOUCH=exports.SubtractiveBlending=exports.SubtractEquation=exports.StringKeyframeTrack=exports.StreamReadUsage=exports.StreamDrawUsage=exports.StreamCopyUsage=exports.StereoCamera=exports.StaticReadUsage=exports.StaticDrawUsage=exports.StaticCopyUsage=exports.SrcColorFactor=exports.SrcAlphaSaturateFactor=exports.SrcAlphaFactor=exports.SpriteMaterial=exports.Sprite=exports.SpotLightHelper=exports.SpotLight=exports.SplineCurve=exports.SphericalHarmonics3=exports.Spherical=exports.SphereGeometry=exports.SphereBufferGeometry=exports.Sphere=exports.SmoothShading=exports.SkeletonHelper=exports.Skeleton=exports.ShortType=exports.ShapeUtils=exports.ShapePath=exports.ShapeGeometry=void 0;const t="126";exports.REVISION="126";const e={LEFT:0,MIDDLE:1,RIGHT:2,ROTATE:0,DOLLY:1,PAN:2};exports.MOUSE=e;const n={ROTATE:0,PAN:1,DOLLY_PAN:2,DOLLY_ROTATE:3};exports.TOUCH=n;const r=0;exports.CullFaceNone=r;const i=1;exports.CullFaceBack=i;const s=2;exports.CullFaceFront=s;const o=3;exports.CullFaceFrontBack=3;const a=0;exports.BasicShadowMap=0;const l=1;exports.PCFShadowMap=l;const c=2;exports.PCFSoftShadowMap=c;const h=3;exports.VSMShadowMap=h;const u=0;exports.FrontSide=u;const p=1;exports.BackSide=p;const d=2;exports.DoubleSide=d;const m=1;exports.FlatShading=1;const f=2;exports.SmoothShading=2;const g=0;exports.NoBlending=g;const x=1;exports.NormalBlending=x;const v=2;exports.AdditiveBlending=v;const y=3;exports.SubtractiveBlending=y;const _=4;exports.MultiplyBlending=_;const b=5;exports.CustomBlending=b;const w=100;exports.AddEquation=w;const M=101;exports.SubtractEquation=M;const S=102;exports.ReverseSubtractEquation=S;const T=103;exports.MinEquation=T;const E=104;exports.MaxEquation=E;const A=200;exports.ZeroFactor=A;const L=201;exports.OneFactor=L;const R=202;exports.SrcColorFactor=R;const C=203;exports.OneMinusSrcColorFactor=C;const P=204;exports.SrcAlphaFactor=P;const D=205;exports.OneMinusSrcAlphaFactor=D;const I=206;exports.DstAlphaFactor=I;const B=207;exports.OneMinusDstAlphaFactor=B;const N=208;exports.DstColorFactor=N;const F=209;exports.OneMinusDstColorFactor=F;const O=210;exports.SrcAlphaSaturateFactor=O;const z=0;exports.NeverDepth=z;const G=1;exports.AlwaysDepth=G;const H=2;exports.LessDepth=H;const U=3;exports.LessEqualDepth=U;const k=4;exports.EqualDepth=k;const V=5;exports.GreaterEqualDepth=V;const W=6;exports.GreaterDepth=W;const j=7;exports.NotEqualDepth=j;const q=0;exports.MultiplyOperation=q;const X=1;exports.MixOperation=X;const Y=2;exports.AddOperation=Y;const Z=0;exports.NoToneMapping=Z;const J=1;exports.LinearToneMapping=J;const Q=2;exports.ReinhardToneMapping=Q;const K=3;exports.CineonToneMapping=K;const $=4;exports.ACESFilmicToneMapping=$;const tt=5;exports.CustomToneMapping=tt;const et=300;exports.UVMapping=et;const nt=301;exports.CubeReflectionMapping=nt;const rt=302;exports.CubeRefractionMapping=rt;const it=303;exports.EquirectangularReflectionMapping=it;const st=304;exports.EquirectangularRefractionMapping=st;const ot=306;exports.CubeUVReflectionMapping=ot;const at=307;exports.CubeUVRefractionMapping=at;const lt=1e3;exports.RepeatWrapping=lt;const ct=1001;exports.ClampToEdgeWrapping=ct;const ht=1002;exports.MirroredRepeatWrapping=ht;const ut=1003;exports.NearestFilter=ut;const pt=1004;exports.NearestMipmapNearestFilter=pt;const dt=1004;exports.NearestMipMapNearestFilter=1004;const mt=1005;exports.NearestMipmapLinearFilter=mt;const ft=1005;exports.NearestMipMapLinearFilter=1005;const gt=1006;exports.LinearFilter=gt;const xt=1007;exports.LinearMipmapNearestFilter=xt;const vt=1007;exports.LinearMipMapNearestFilter=1007;const yt=1008;exports.LinearMipmapLinearFilter=yt;const _t=1008;exports.LinearMipMapLinearFilter=1008;const bt=1009;exports.UnsignedByteType=bt;const wt=1010;exports.ByteType=wt;const Mt=1011;exports.ShortType=Mt;const St=1012;exports.UnsignedShortType=St;const Tt=1013;exports.IntType=Tt;const Et=1014;exports.UnsignedIntType=Et;const At=1015;exports.FloatType=At;const Lt=1016;exports.HalfFloatType=Lt;const Rt=1017;exports.UnsignedShort4444Type=Rt;const Ct=1018;exports.UnsignedShort5551Type=Ct;const Pt=1019;exports.UnsignedShort565Type=Pt;const Dt=1020;exports.UnsignedInt248Type=Dt;const It=1021;exports.AlphaFormat=It;const Bt=1022;exports.RGBFormat=Bt;const Nt=1023;exports.RGBAFormat=Nt;const Ft=1024;exports.LuminanceFormat=Ft;const Ot=1025;exports.LuminanceAlphaFormat=Ot;const zt=Nt;exports.RGBEFormat=zt;const Gt=1026;exports.DepthFormat=Gt;const Ht=1027;exports.DepthStencilFormat=Ht;const Ut=1028;exports.RedFormat=Ut;const kt=1029;exports.RedIntegerFormat=kt;const Vt=1030;exports.RGFormat=Vt;const Wt=1031;exports.RGIntegerFormat=Wt;const jt=1032;exports.RGBIntegerFormat=jt;const qt=1033;exports.RGBAIntegerFormat=qt;const Xt=33776;exports.RGB_S3TC_DXT1_Format=Xt;const Yt=33777;exports.RGBA_S3TC_DXT1_Format=Yt;const Zt=33778;exports.RGBA_S3TC_DXT3_Format=Zt;const Jt=33779;exports.RGBA_S3TC_DXT5_Format=Jt;const Qt=35840;exports.RGB_PVRTC_4BPPV1_Format=Qt;const Kt=35841;exports.RGB_PVRTC_2BPPV1_Format=Kt;const $t=35842;exports.RGBA_PVRTC_4BPPV1_Format=$t;const te=35843;exports.RGBA_PVRTC_2BPPV1_Format=te;const ee=36196;exports.RGB_ETC1_Format=ee;const ne=37492;exports.RGB_ETC2_Format=ne;const re=37496;exports.RGBA_ETC2_EAC_Format=re;const ie=37808;exports.RGBA_ASTC_4x4_Format=ie;const se=37809;exports.RGBA_ASTC_5x4_Format=se;const oe=37810;exports.RGBA_ASTC_5x5_Format=oe;const ae=37811;exports.RGBA_ASTC_6x5_Format=ae;const le=37812;exports.RGBA_ASTC_6x6_Format=le;const ce=37813;exports.RGBA_ASTC_8x5_Format=ce;const he=37814;exports.RGBA_ASTC_8x6_Format=he;const ue=37815;exports.RGBA_ASTC_8x8_Format=ue;const pe=37816;exports.RGBA_ASTC_10x5_Format=pe;const de=37817;exports.RGBA_ASTC_10x6_Format=de;const me=37818;exports.RGBA_ASTC_10x8_Format=me;const fe=37819;exports.RGBA_ASTC_10x10_Format=fe;const ge=37820;exports.RGBA_ASTC_12x10_Format=ge;const xe=37821;exports.RGBA_ASTC_12x12_Format=xe;const ve=36492;exports.RGBA_BPTC_Format=ve;const ye=37840;exports.SRGB8_ALPHA8_ASTC_4x4_Format=ye;const _e=37841;exports.SRGB8_ALPHA8_ASTC_5x4_Format=_e;const be=37842;exports.SRGB8_ALPHA8_ASTC_5x5_Format=be;const we=37843;exports.SRGB8_ALPHA8_ASTC_6x5_Format=we;const Me=37844;exports.SRGB8_ALPHA8_ASTC_6x6_Format=Me;const Se=37845;exports.SRGB8_ALPHA8_ASTC_8x5_Format=Se;const Te=37846;exports.SRGB8_ALPHA8_ASTC_8x6_Format=Te;const Ee=37847;exports.SRGB8_ALPHA8_ASTC_8x8_Format=Ee;const Ae=37848;exports.SRGB8_ALPHA8_ASTC_10x5_Format=Ae;const Le=37849;exports.SRGB8_ALPHA8_ASTC_10x6_Format=Le;const Re=37850;exports.SRGB8_ALPHA8_ASTC_10x8_Format=Re;const Ce=37851;exports.SRGB8_ALPHA8_ASTC_10x10_Format=Ce;const Pe=37852;exports.SRGB8_ALPHA8_ASTC_12x10_Format=Pe;const De=37853;exports.SRGB8_ALPHA8_ASTC_12x12_Format=De;const Ie=2200;exports.LoopOnce=Ie;const Be=2201;exports.LoopRepeat=Be;const Ne=2202;exports.LoopPingPong=Ne;const Fe=2300;exports.InterpolateDiscrete=Fe;const Oe=2301;exports.InterpolateLinear=Oe;const ze=2302;exports.InterpolateSmooth=ze;const Ge=2400;exports.ZeroCurvatureEnding=Ge;const He=2401;exports.ZeroSlopeEnding=He;const Ue=2402;exports.WrapAroundEnding=Ue;const ke=2500;exports.NormalAnimationBlendMode=ke;const Ve=2501;exports.AdditiveAnimationBlendMode=Ve;const We=0;exports.TrianglesDrawMode=0;const je=1;exports.TriangleStripDrawMode=1;const qe=2;exports.TriangleFanDrawMode=2;const Xe=3e3;exports.LinearEncoding=Xe;const Ye=3001;exports.sRGBEncoding=Ye;const Ze=3007;exports.GammaEncoding=Ze;const Je=3002;exports.RGBEEncoding=Je;const Qe=3003;exports.LogLuvEncoding=Qe;const Ke=3004;exports.RGBM7Encoding=Ke;const $e=3005;exports.RGBM16Encoding=$e;const tn=3006;exports.RGBDEncoding=tn;const en=3200;exports.BasicDepthPacking=en;const nn=3201;exports.RGBADepthPacking=nn;const rn=0;exports.TangentSpaceNormalMap=rn;const sn=1;exports.ObjectSpaceNormalMap=sn;const on=0;exports.ZeroStencilOp=0;const an=7680;exports.KeepStencilOp=an;const ln=7681;exports.ReplaceStencilOp=7681;const cn=7682;exports.IncrementStencilOp=7682;const hn=7683;exports.DecrementStencilOp=7683;const un=34055;exports.IncrementWrapStencilOp=34055;const pn=34056;exports.DecrementWrapStencilOp=34056;const dn=5386;exports.InvertStencilOp=5386;const mn=512;exports.NeverStencilFunc=512;const fn=513;exports.LessStencilFunc=513;const gn=514;exports.EqualStencilFunc=514;const xn=515;exports.LessEqualStencilFunc=515;const vn=516;exports.GreaterStencilFunc=516;const yn=517;exports.NotEqualStencilFunc=517;const _n=518;exports.GreaterEqualStencilFunc=518;const bn=519;exports.AlwaysStencilFunc=bn;const wn=35044;exports.StaticDrawUsage=wn;const Mn=35048;exports.DynamicDrawUsage=Mn;const Sn=35040;exports.StreamDrawUsage=35040;const Tn=35045;exports.StaticReadUsage=35045;const En=35049;exports.DynamicReadUsage=35049;const An=35041;exports.StreamReadUsage=35041;const Ln=35046;exports.StaticCopyUsage=35046;const Rn=35050;exports.DynamicCopyUsage=35050;const Cn=35042;exports.StreamCopyUsage=35042;const Pn="100";exports.GLSL1="100";const Dn="300 es";function In(){}exports.GLSL3=Dn,Object.assign(In.prototype,{addEventListener:function(t,e){void 0===this._listeners&&(this._listeners={});const n=this._listeners;void 0===n[t]&&(n[t]=[]),-1===n[t].indexOf(e)&&n[t].push(e)},hasEventListener:function(t,e){if(void 0===this._listeners)return!1;const n=this._listeners;return void 0!==n[t]&&-1!==n[t].indexOf(e)},removeEventListener:function(t,e){if(void 0===this._listeners)return;const n=this._listeners[t];if(void 0!==n){const t=n.indexOf(e);-1!==t&&n.splice(t,1)}},dispatchEvent:function(t){if(void 0===this._listeners)return;const e=this._listeners[t.type];if(void 0!==e){t.target=this;const n=e.slice(0);for(let e=0,r=n.length;e<r;e++)n[e].call(this,t)}}});const Bn=[];for(let yx=0;yx<256;yx++)Bn[yx]=(yx<16?"0":"")+yx.toString(16);let Nn=1234567;const Fn={DEG2RAD:Math.PI/180,RAD2DEG:180/Math.PI,generateUUID:function(){const t=4294967295*Math.random()|0,e=4294967295*Math.random()|0,n=4294967295*Math.random()|0,r=4294967295*Math.random()|0;return(Bn[255&t]+Bn[t>>8&255]+Bn[t>>16&255]+Bn[t>>24&255]+"-"+Bn[255&e]+Bn[e>>8&255]+"-"+Bn[e>>16&15|64]+Bn[e>>24&255]+"-"+Bn[63&n|128]+Bn[n>>8&255]+"-"+Bn[n>>16&255]+Bn[n>>24&255]+Bn[255&r]+Bn[r>>8&255]+Bn[r>>16&255]+Bn[r>>24&255]).toUpperCase()},clamp:function(t,e,n){return Math.max(e,Math.min(n,t))},euclideanModulo:function(t,e){return(t%e+e)%e},mapLinear:function(t,e,n,r,i){return r+(t-e)*(i-r)/(n-e)},lerp:function(t,e,n){return(1-n)*t+n*e},damp:function(t,e,n,r){return Fn.lerp(t,e,1-Math.exp(-n*r))},pingpong:function(t,e=1){return e-Math.abs(Fn.euclideanModulo(t,2*e)-e)},smoothstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*(3-2*t)},smootherstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*t*(t*(6*t-15)+10)},randInt:function(t,e){return t+Math.floor(Math.random()*(e-t+1))},randFloat:function(t,e){return t+Math.random()*(e-t)},randFloatSpread:function(t){return t*(.5-Math.random())},seededRandom:function(t){return void 0!==t&&(Nn=t%2147483647),((Nn=16807*Nn%2147483647)-1)/2147483646},degToRad:function(t){return t*Fn.DEG2RAD},radToDeg:function(t){return t*Fn.RAD2DEG},isPowerOfTwo:function(t){return 0==(t&t-1)&&0!==t},ceilPowerOfTwo:function(t){return Math.pow(2,Math.ceil(Math.log(t)/Math.LN2))},floorPowerOfTwo:function(t){return Math.pow(2,Math.floor(Math.log(t)/Math.LN2))},setQuaternionFromProperEuler:function(t,e,n,r,i){const s=Math.cos,o=Math.sin,a=s(n/2),l=o(n/2),c=s((e+r)/2),h=o((e+r)/2),u=s((e-r)/2),p=o((e-r)/2),d=s((r-e)/2),m=o((r-e)/2);switch(i){case"XYX":t.set(a*h,l*u,l*p,a*c);break;case"YZY":t.set(l*p,a*h,l*u,a*c);break;case"ZXZ":t.set(l*u,l*p,a*h,a*c);break;case"XZX":t.set(a*h,l*m,l*d,a*c);break;case"YXY":t.set(l*d,a*h,l*m,a*c);break;case"ZYZ":t.set(l*m,l*d,a*h,a*c);break;default:console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+i)}}};exports.MathUtils=exports.Math=Fn;class On{constructor(t=0,e=0){this.x=t,this.y=e}get width(){return this.x}set width(t){this.x=t}get height(){return this.y}set height(t){this.y=t}set(t,e){return this.x=t,this.y=e,this}setScalar(t){return this.x=t,this.y=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y)}copy(t){return this.x=t.x,this.y=t.y,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this)}addScalar(t){return this.x+=t,this.y+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this)}subScalar(t){return this.x-=t,this.y-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this}multiply(t){return this.x*=t.x,this.y*=t.y,this}multiplyScalar(t){return this.x*=t,this.y*=t,this}divide(t){return this.x/=t.x,this.y/=t.y,this}divideScalar(t){return this.multiplyScalar(1/t)}applyMatrix3(t){const e=this.x,n=this.y,r=t.elements;return this.x=r[0]*e+r[3]*n+r[6],this.y=r[1]*e+r[4]*n+r[7],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this}negate(){return this.x=-this.x,this.y=-this.y,this}dot(t){return this.x*t.x+this.y*t.y}cross(t){return this.x*t.y-this.y*t.x}lengthSq(){return this.x*this.x+this.y*this.y}length(){return Math.sqrt(this.x*this.x+this.y*this.y)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)}normalize(){return this.divideScalar(this.length()||1)}angle(){return Math.atan2(-this.y,-this.x)+Math.PI}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y;return e*e+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this}equals(t){return t.x===this.x&&t.y===this.y}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this}rotateAround(t,e){const n=Math.cos(e),r=Math.sin(e),i=this.x-t.x,s=this.y-t.y;return this.x=i*n-s*r+t.x,this.y=i*r+s*n+t.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}}exports.Vector2=On,On.prototype.isVector2=!0;class zn{constructor(){this.elements=[1,0,0,0,1,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l){const c=this.elements;return c[0]=t,c[1]=r,c[2]=o,c[3]=e,c[4]=i,c[5]=a,c[6]=n,c[7]=s,c[8]=l,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],this}extractBasis(t,e,n){return t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(t){const e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[3],a=n[6],l=n[1],c=n[4],h=n[7],u=n[2],p=n[5],d=n[8],m=r[0],f=r[3],g=r[6],x=r[1],v=r[4],y=r[7],_=r[2],b=r[5],w=r[8];return i[0]=s*m+o*x+a*_,i[3]=s*f+o*v+a*b,i[6]=s*g+o*y+a*w,i[1]=l*m+c*x+h*_,i[4]=l*f+c*v+h*b,i[7]=l*g+c*y+h*w,i[2]=u*m+p*x+d*_,i[5]=u*f+p*v+d*b,i[8]=u*g+p*y+d*w,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8];return e*s*c-e*o*l-n*i*c+n*o*a+r*i*l-r*s*a}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=c*s-o*l,u=o*a-c*i,p=l*i-s*a,d=e*h+n*u+r*p;if(0===d)return this.set(0,0,0,0,0,0,0,0,0);const m=1/d;return t[0]=h*m,t[1]=(r*l-c*n)*m,t[2]=(o*n-r*s)*m,t[3]=u*m,t[4]=(c*e-r*a)*m,t[5]=(r*i-o*e)*m,t[6]=p*m,t[7]=(n*a-l*e)*m,t[8]=(s*e-n*i)*m,this}transpose(){let t;const e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){const e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,n,r,i,s,o){const a=Math.cos(i),l=Math.sin(i);return this.set(n*a,n*l,-n*(a*s+l*o)+s+t,-r*l,r*a,-r*(-l*s+a*o)+o+e,0,0,1),this}scale(t,e){const n=this.elements;return n[0]*=t,n[3]*=t,n[6]*=t,n[1]*=e,n[4]*=e,n[7]*=e,this}rotate(t){const e=Math.cos(t),n=Math.sin(t),r=this.elements,i=r[0],s=r[3],o=r[6],a=r[1],l=r[4],c=r[7];return r[0]=e*i+n*a,r[3]=e*s+n*l,r[6]=e*o+n*c,r[1]=-n*i+e*a,r[4]=-n*s+e*l,r[7]=-n*o+e*c,this}translate(t,e){const n=this.elements;return n[0]+=t*n[2],n[3]+=t*n[5],n[6]+=t*n[8],n[1]+=e*n[2],n[4]+=e*n[5],n[7]+=e*n[8],this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<9;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<9;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t}clone(){return(new this.constructor).fromArray(this.elements)}}let Gn;exports.Matrix3=zn,zn.prototype.isMatrix3=!0;const Hn={getDataURL:function(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===Gn&&(Gn=document.createElementNS("http://www.w3.org/1999/xhtml","canvas")),Gn.width=t.width,Gn.height=t.height;const n=Gn.getContext("2d");t instanceof ImageData?n.putImageData(t,0,0):n.drawImage(t,0,0,t.width,t.height),e=Gn}return e.width>2048||e.height>2048?e.toDataURL("image/jpeg",.6):e.toDataURL("image/png")}};exports.ImageUtils=Hn;let Un=0;class kn extends In{constructor(t=kn.DEFAULT_IMAGE,e=kn.DEFAULT_MAPPING,n=ct,r=ct,i=gt,s=yt,o=Nt,a=bt,l=1,c=Xe){super(),Object.defineProperty(this,"id",{value:Un++}),this.uuid=Fn.generateUUID(),this.name="",this.image=t,this.mipmaps=[],this.mapping=e,this.wrapS=n,this.wrapT=r,this.magFilter=i,this.minFilter=s,this.anisotropy=l,this.format=o,this.internalFormat=null,this.type=a,this.offset=new On(0,0),this.repeat=new On(1,1),this.center=new On(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new zn,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.encoding=c,this.version=0,this.onUpdate=null}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.image=t.image,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.encoding=t.encoding,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const n={metadata:{version:4.5,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,type:this.type,encoding:this.encoding,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(void 0!==this.image){const r=this.image;if(void 0===r.uuid&&(r.uuid=Fn.generateUUID()),!e&&void 0===t.images[r.uuid]){let e;if(Array.isArray(r)){e=[];for(let t=0,n=r.length;t<n;t++)r[t].isDataTexture?e.push(Vn(r[t].image)):e.push(Vn(r[t]))}else e=Vn(r);t.images[r.uuid]={uuid:r.uuid,url:e}}n.image=r.uuid}return e||(t.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==et)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case lt:t.x=t.x-Math.floor(t.x);break;case ct:t.x=t.x<0?0:1;break;case ht:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case lt:t.y=t.y-Math.floor(t.y);break;case ct:t.y=t.y<0?0:1;break;case ht:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&this.version++}}function Vn(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?Hn.getDataURL(t):t.data?{data:Array.prototype.slice.call(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}exports.Texture=kn,kn.DEFAULT_IMAGE=void 0,kn.DEFAULT_MAPPING=et,kn.prototype.isTexture=!0;class Wn{constructor(t=0,e=0,n=0,r=1){this.x=t,this.y=e,this.z=n,this.w=r}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,n,r){return this.x=t,this.y=e,this.z=n,this.w=r,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=this.w,s=t.elements;return this.x=s[0]*e+s[4]*n+s[8]*r+s[12]*i,this.y=s[1]*e+s[5]*n+s[9]*r+s[13]*i,this.z=s[2]*e+s[6]*n+s[10]*r+s[14]*i,this.w=s[3]*e+s[7]*n+s[11]*r+s[15]*i,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,n,r,i;const s=t.elements,o=s[0],a=s[4],l=s[8],c=s[1],h=s[5],u=s[9],p=s[2],d=s[6],m=s[10];if(Math.abs(a-c)<.01&&Math.abs(l-p)<.01&&Math.abs(u-d)<.01){if(Math.abs(a+c)<.1&&Math.abs(l+p)<.1&&Math.abs(u+d)<.1&&Math.abs(o+h+m-3)<.1)return this.set(1,0,0,0),this;e=Math.PI;const t=(o+1)/2,s=(h+1)/2,f=(m+1)/2,g=(a+c)/4,x=(l+p)/4,v=(u+d)/4;return t>s&&t>f?t<.01?(n=0,r=.707106781,i=.707106781):(r=g/(n=Math.sqrt(t)),i=x/n):s>f?s<.01?(n=.707106781,r=0,i=.707106781):(n=g/(r=Math.sqrt(s)),i=v/r):f<.01?(n=.707106781,r=.707106781,i=0):(n=x/(i=Math.sqrt(f)),r=v/i),this.set(n,r,i,e),this}let f=Math.sqrt((d-u)*(d-u)+(l-p)*(l-p)+(c-a)*(c-a));return Math.abs(f)<.001&&(f=1),this.x=(d-u)/f,this.y=(l-p)/f,this.z=(c-a)/f,this.w=Math.acos((o+h+m-1)/2),this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this.w=Math.max(t.w,Math.min(e.w,this.w)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this.w=Math.max(t,Math.min(e,this.w)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this.w=this.w<0?Math.ceil(this.w):Math.floor(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this.w=t.w+(e.w-t.w)*n,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}}exports.Vector4=Wn,Wn.prototype.isVector4=!0;class jn extends In{constructor(t,e,n){super(),this.width=t,this.height=e,this.depth=1,this.scissor=new Wn(0,0,t,e),this.scissorTest=!1,this.viewport=new Wn(0,0,t,e),n=n||{},this.texture=new kn(void 0,n.mapping,n.wrapS,n.wrapT,n.magFilter,n.minFilter,n.format,n.type,n.anisotropy,n.encoding),this.texture.image={},this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=1,this.texture.generateMipmaps=void 0!==n.generateMipmaps&&n.generateMipmaps,this.texture.minFilter=void 0!==n.minFilter?n.minFilter:gt,this.depthBuffer=void 0===n.depthBuffer||n.depthBuffer,this.stencilBuffer=void 0!==n.stencilBuffer&&n.stencilBuffer,this.depthTexture=void 0!==n.depthTexture?n.depthTexture:null}setTexture(t){t.image={width:this.width,height:this.height,depth:this.depth},this.texture=t}setSize(t,e,n=1){this.width===t&&this.height===e&&this.depth===n||(this.width=t,this.height=e,this.depth=n,this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=n,this.dispose()),this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.width=t.width,this.height=t.height,this.depth=t.depth,this.viewport.copy(t.viewport),this.texture=t.texture.clone(),this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.depthTexture=t.depthTexture,this}dispose(){this.dispatchEvent({type:"dispose"})}}exports.WebGLRenderTarget=jn,jn.prototype.isWebGLRenderTarget=!0;class qn extends jn{constructor(t,e,n){super(t,e,n),this.samples=4}copy(t){return super.copy.call(this,t),this.samples=t.samples,this}}exports.WebGLMultisampleRenderTarget=qn,qn.prototype.isWebGLMultisampleRenderTarget=!0;class Xn{constructor(t=0,e=0,n=0,r=1){this._x=t,this._y=e,this._z=n,this._w=r}static slerp(t,e,n,r){return n.copy(t).slerp(e,r)}static slerpFlat(t,e,n,r,i,s,o){let a=n[r+0],l=n[r+1],c=n[r+2],h=n[r+3];const u=i[s+0],p=i[s+1],d=i[s+2],m=i[s+3];if(0===o)return t[e+0]=a,t[e+1]=l,t[e+2]=c,void(t[e+3]=h);if(1===o)return t[e+0]=u,t[e+1]=p,t[e+2]=d,void(t[e+3]=m);if(h!==m||a!==u||l!==p||c!==d){let t=1-o;const e=a*u+l*p+c*d+h*m,n=e>=0?1:-1,r=1-e*e;if(r>Number.EPSILON){const i=Math.sqrt(r),s=Math.atan2(i,e*n);t=Math.sin(t*s)/i,o=Math.sin(o*s)/i}const i=o*n;if(a=a*t+u*i,l=l*t+p*i,c=c*t+d*i,h=h*t+m*i,t===1-o){const t=1/Math.sqrt(a*a+l*l+c*c+h*h);a*=t,l*=t,c*=t,h*=t}}t[e]=a,t[e+1]=l,t[e+2]=c,t[e+3]=h}static multiplyQuaternionsFlat(t,e,n,r,i,s){const o=n[r],a=n[r+1],l=n[r+2],c=n[r+3],h=i[s],u=i[s+1],p=i[s+2],d=i[s+3];return t[e]=o*d+c*h+a*p-l*u,t[e+1]=a*d+c*u+l*h-o*p,t[e+2]=l*d+c*p+o*u-a*h,t[e+3]=c*d-o*h-a*u-l*p,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._w=r,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e){if(!t||!t.isEuler)throw new Error("THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.");const n=t._x,r=t._y,i=t._z,s=t._order,o=Math.cos,a=Math.sin,l=o(n/2),c=o(r/2),h=o(i/2),u=a(n/2),p=a(r/2),d=a(i/2);switch(s){case"XYZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"YXZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"ZXY":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"ZYX":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"YZX":this._x=u*c*h+l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h-u*p*d;break;case"XZY":this._x=u*c*h-l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h+u*p*d;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)}return!1!==e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const n=e/2,r=Math.sin(n);return this._x=t.x*r,this._y=t.y*r,this._z=t.z*r,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,n=e[0],r=e[4],i=e[8],s=e[1],o=e[5],a=e[9],l=e[2],c=e[6],h=e[10],u=n+o+h;if(u>0){const t=.5/Math.sqrt(u+1);this._w=.25/t,this._x=(c-a)*t,this._y=(i-l)*t,this._z=(s-r)*t}else if(n>o&&n>h){const t=2*Math.sqrt(1+n-o-h);this._w=(c-a)/t,this._x=.25*t,this._y=(r+s)/t,this._z=(i+l)/t}else if(o>h){const t=2*Math.sqrt(1+o-n-h);this._w=(i-l)/t,this._x=(r+s)/t,this._y=.25*t,this._z=(a+c)/t}else{const t=2*Math.sqrt(1+h-n-o);this._w=(s-r)/t,this._x=(i+l)/t,this._y=(a+c)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let n=t.dot(e)+1;return n<1e-6?(n=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=n):(this._x=0,this._y=-t.z,this._z=t.y,this._w=n)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=n),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(Fn.clamp(this.dot(t),-1,1)))}rotateTowards(t,e){const n=this.angleTo(t);if(0===n)return this;const r=Math.min(1,e/n);return this.slerp(t,r),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t,e){return void 0!==e?(console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead."),this.multiplyQuaternions(t,e)):this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const n=t._x,r=t._y,i=t._z,s=t._w,o=e._x,a=e._y,l=e._z,c=e._w;return this._x=n*c+s*o+r*l-i*a,this._y=r*c+s*a+i*o-n*l,this._z=i*c+s*l+n*a-r*o,this._w=s*c-n*o-r*a-i*l,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const n=this._x,r=this._y,i=this._z,s=this._w;let o=s*t._w+n*t._x+r*t._y+i*t._z;if(o<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,o=-o):this.copy(t),o>=1)return this._w=s,this._x=n,this._y=r,this._z=i,this;const a=1-o*o;if(a<=Number.EPSILON){const t=1-e;return this._w=t*s+e*this._w,this._x=t*n+e*this._x,this._y=t*r+e*this._y,this._z=t*i+e*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(a),c=Math.atan2(l,o),h=Math.sin((1-e)*c)/l,u=Math.sin(e*c)/l;return this._w=s*h+this._w*u,this._x=n*h+this._x*u,this._y=r*h+this._y*u,this._z=i*h+this._z*u,this._onChangeCallback(),this}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Quaternion=Xn,Xn.prototype.isQuaternion=!0;class Yn{constructor(t=0,e=0,n=0){this.x=t,this.y=e,this.z=n}set(t,e,n){return void 0===n&&(n=this.z),this.x=t,this.y=e,this.z=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(t,e)):(this.x*=t.x,this.y*=t.y,this.z*=t.z,this)}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return t&&t.isEuler||console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order."),this.applyQuaternion(Jn.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(Jn.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[3]*n+i[6]*r,this.y=i[1]*e+i[4]*n+i[7]*r,this.z=i[2]*e+i[5]*n+i[8]*r,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=t.elements,s=1/(i[3]*e+i[7]*n+i[11]*r+i[15]);return this.x=(i[0]*e+i[4]*n+i[8]*r+i[12])*s,this.y=(i[1]*e+i[5]*n+i[9]*r+i[13])*s,this.z=(i[2]*e+i[6]*n+i[10]*r+i[14])*s,this}applyQuaternion(t){const e=this.x,n=this.y,r=this.z,i=t.x,s=t.y,o=t.z,a=t.w,l=a*e+s*r-o*n,c=a*n+o*e-i*r,h=a*r+i*n-s*e,u=-i*e-s*n-o*r;return this.x=l*a+u*-i+c*-o-h*-s,this.y=c*a+u*-s+h*-i-l*-o,this.z=h*a+u*-o+l*-s-c*-i,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[4]*n+i[8]*r,this.y=i[1]*e+i[5]*n+i[9]*r,this.z=i[2]*e+i[6]*n+i[10]*r,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this}cross(t,e){return void 0!==e?(console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(t,e)):this.crossVectors(this,t)}crossVectors(t,e){const n=t.x,r=t.y,i=t.z,s=e.x,o=e.y,a=e.z;return this.x=r*a-i*o,this.y=i*s-n*a,this.z=n*o-r*s,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const n=t.dot(this)/e;return this.copy(t).multiplyScalar(n)}projectOnPlane(t){return Zn.copy(this).projectOnVector(t),this.sub(Zn)}reflect(t){return this.sub(Zn.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const n=this.dot(t)/e;return Math.acos(Fn.clamp(n,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y,r=this.z-t.z;return e*e+n*n+r*r}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,n){const r=Math.sin(e)*t;return this.x=r*Math.sin(n),this.y=Math.cos(e)*t,this.z=r*Math.cos(n),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,n){return this.x=t*Math.sin(e),this.y=n,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),n=this.setFromMatrixColumn(t,1).length(),r=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=n,this.z=r,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}}exports.Vector3=Yn,Yn.prototype.isVector3=!0;const Zn=new Yn,Jn=new Xn;class Qn{constructor(t=new Yn(1/0,1/0,1/0),e=new Yn(-1/0,-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.length;a<l;a+=3){const l=t[a],c=t[a+1],h=t[a+2];l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromBufferAttribute(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.count;a<l;a++){const l=t.getX(a),c=t.getY(a),h=t.getZ(a);l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=$n.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}setFromObject(t){return this.makeEmpty(),this.expandByObject(t)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return void 0===t&&(console.warn("THREE.Box3: .getCenter() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box3: .getSize() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t){t.updateWorldMatrix(!1,!1);const e=t.geometry;void 0!==e&&(null===e.boundingBox&&e.computeBoundingBox(),tr.copy(e.boundingBox),tr.applyMatrix4(t.matrixWorld),this.union(tr));const n=t.children;for(let r=0,i=n.length;r<i;r++)this.expandByObject(n[r]);return this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y||t.z<this.min.z||t.z>this.max.z)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box3: .getParameter() target is now required"),e=new Yn),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y||t.max.z<this.min.z||t.min.z>this.max.z)}intersectsSphere(t){return this.clampPoint(t.center,$n),$n.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,n;return t.normal.x>0?(e=t.normal.x*this.min.x,n=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,n=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,n+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,n+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,n+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,n+=t.normal.z*this.min.z),e<=-t.constant&&n>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(ar),lr.subVectors(this.max,ar),er.subVectors(t.a,ar),nr.subVectors(t.b,ar),rr.subVectors(t.c,ar),ir.subVectors(nr,er),sr.subVectors(rr,nr),or.subVectors(er,rr);let e=[0,-ir.z,ir.y,0,-sr.z,sr.y,0,-or.z,or.y,ir.z,0,-ir.x,sr.z,0,-sr.x,or.z,0,-or.x,-ir.y,ir.x,0,-sr.y,sr.x,0,-or.y,or.x,0];return!!ur(e,er,nr,rr,lr)&&(!!ur(e=[1,0,0,0,1,0,0,0,1],er,nr,rr,lr)&&(cr.crossVectors(ir,sr),ur(e=[cr.x,cr.y,cr.z],er,nr,rr,lr)))}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box3: .clampPoint() target is now required"),e=new Yn),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return $n.copy(t).clamp(this.min,this.max).sub(t).length()}getBoundingSphere(t){return void 0===t&&console.error("THREE.Box3: .getBoundingSphere() target is now required"),this.getCenter(t.center),t.radius=.5*this.getSize($n).length(),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()?this:(Kn[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),Kn[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),Kn[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),Kn[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),Kn[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),Kn[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),Kn[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),Kn[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(Kn),this)}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box3=Qn,Qn.prototype.isBox3=!0;const Kn=[new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn],$n=new Yn,tr=new Qn,er=new Yn,nr=new Yn,rr=new Yn,ir=new Yn,sr=new Yn,or=new Yn,ar=new Yn,lr=new Yn,cr=new Yn,hr=new Yn;function ur(t,e,n,r,i){for(let s=0,o=t.length-3;s<=o;s+=3){hr.fromArray(t,s);const o=i.x*Math.abs(hr.x)+i.y*Math.abs(hr.y)+i.z*Math.abs(hr.z),a=e.dot(hr),l=n.dot(hr),c=r.dot(hr);if(Math.max(-Math.max(a,l,c),Math.min(a,l,c))>o)return!1}return!0}const pr=new Qn;class dr{constructor(t=new Yn,e=-1){this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const n=this.center;void 0!==e?n.copy(e):pr.setFromPoints(t).getCenter(n);let r=0;for(let i=0,s=t.length;i<s;i++)r=Math.max(r,n.distanceToSquared(t[i]));return this.radius=Math.sqrt(r),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const n=this.center.distanceToSquared(t);return void 0===e&&(console.warn("THREE.Sphere: .clampPoint() target is now required"),e=new Yn),e.copy(t),n>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return void 0===t&&(console.warn("THREE.Sphere: .getBoundingBox() target is now required"),t=new Qn),this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}exports.Sphere=dr;const mr=new Yn,fr=new Yn,gr=new Yn,xr=new Yn,vr=new Yn,yr=new Yn,_r=new Yn;class br{constructor(t=new Yn,e=new Yn(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return void 0===e&&(console.warn("THREE.Ray: .at() target is now required"),e=new Yn),e.copy(this.direction).multiplyScalar(t).add(this.origin)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,mr)),this}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Ray: .closestPointToPoint() target is now required"),e=new Yn),e.subVectors(t,this.origin);const n=e.dot(this.direction);return n<0?e.copy(this.origin):e.copy(this.direction).multiplyScalar(n).add(this.origin)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=mr.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(mr.copy(this.direction).multiplyScalar(e).add(this.origin),mr.distanceToSquared(t))}distanceSqToSegment(t,e,n,r){fr.copy(t).add(e).multiplyScalar(.5),gr.copy(e).sub(t).normalize(),xr.copy(this.origin).sub(fr);const i=.5*t.distanceTo(e),s=-this.direction.dot(gr),o=xr.dot(this.direction),a=-xr.dot(gr),l=xr.lengthSq(),c=Math.abs(1-s*s);let h,u,p,d;if(c>0)if(u=s*o-a,d=i*c,(h=s*a-o)>=0)if(u>=-d)if(u<=d){const t=1/c;p=(h*=t)*(h+s*(u*=t)+2*o)+u*(s*h+u+2*a)+l}else u=i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u=-i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u<=-d?p=-(h=Math.max(0,-(-s*i+o)))*h+(u=h>0?-i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l:u<=d?(h=0,p=(u=Math.min(Math.max(-i,-a),i))*(u+2*a)+l):p=-(h=Math.max(0,-(s*i+o)))*h+(u=h>0?i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l;else u=s>0?-i:i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;return n&&n.copy(this.direction).multiplyScalar(h).add(this.origin),r&&r.copy(gr).multiplyScalar(u).add(fr),p}intersectSphere(t,e){mr.subVectors(t.center,this.origin);const n=mr.dot(this.direction),r=mr.dot(mr)-n*n,i=t.radius*t.radius;if(r>i)return null;const s=Math.sqrt(i-r),o=n-s,a=n+s;return o<0&&a<0?null:o<0?this.at(a,e):this.at(o,e)}intersectsSphere(t){return this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){const e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(t.normal)+t.constant)/e;return n>=0?n:null}intersectPlane(t,e){const n=this.distanceToPlane(t);return null===n?null:this.at(n,e)}intersectsPlane(t){const e=t.distanceToPoint(this.origin);return 0===e||t.normal.dot(this.direction)*e<0}intersectBox(t,e){let n,r,i,s,o,a;const l=1/this.direction.x,c=1/this.direction.y,h=1/this.direction.z,u=this.origin;return l>=0?(n=(t.min.x-u.x)*l,r=(t.max.x-u.x)*l):(n=(t.max.x-u.x)*l,r=(t.min.x-u.x)*l),c>=0?(i=(t.min.y-u.y)*c,s=(t.max.y-u.y)*c):(i=(t.max.y-u.y)*c,s=(t.min.y-u.y)*c),n>s||i>r?null:((i>n||n!=n)&&(n=i),(s<r||r!=r)&&(r=s),h>=0?(o=(t.min.z-u.z)*h,a=(t.max.z-u.z)*h):(o=(t.max.z-u.z)*h,a=(t.min.z-u.z)*h),n>a||o>r?null:((o>n||n!=n)&&(n=o),(a<r||r!=r)&&(r=a),r<0?null:this.at(n>=0?n:r,e)))}intersectsBox(t){return null!==this.intersectBox(t,mr)}intersectTriangle(t,e,n,r,i){vr.subVectors(e,t),yr.subVectors(n,t),_r.crossVectors(vr,yr);let s,o=this.direction.dot(_r);if(o>0){if(r)return null;s=1}else{if(!(o<0))return null;s=-1,o=-o}xr.subVectors(this.origin,t);const a=s*this.direction.dot(yr.crossVectors(xr,yr));if(a<0)return null;const l=s*this.direction.dot(vr.cross(xr));if(l<0)return null;if(a+l>o)return null;const c=-s*xr.dot(_r);return c<0?null:this.at(c/o,i)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}exports.Ray=br;class wr{constructor(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l,c,h,u,p,d,m,f){const g=this.elements;return g[0]=t,g[4]=e,g[8]=n,g[12]=r,g[1]=i,g[5]=s,g[9]=o,g[13]=a,g[2]=l,g[6]=c,g[10]=h,g[14]=u,g[3]=p,g[7]=d,g[11]=m,g[15]=f,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new wr).fromArray(this.elements)}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],e[9]=n[9],e[10]=n[10],e[11]=n[11],e[12]=n[12],e[13]=n[13],e[14]=n[14],e[15]=n[15],this}copyPosition(t){const e=this.elements,n=t.elements;return e[12]=n[12],e[13]=n[13],e[14]=n[14],this}setFromMatrix3(t){const e=t.elements;return this.set(e[0],e[3],e[6],0,e[1],e[4],e[7],0,e[2],e[5],e[8],0,0,0,0,1),this}extractBasis(t,e,n){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(t,e,n){return this.set(t.x,e.x,n.x,0,t.y,e.y,n.y,0,t.z,e.z,n.z,0,0,0,0,1),this}extractRotation(t){const e=this.elements,n=t.elements,r=1/Mr.setFromMatrixColumn(t,0).length(),i=1/Mr.setFromMatrixColumn(t,1).length(),s=1/Mr.setFromMatrixColumn(t,2).length();return e[0]=n[0]*r,e[1]=n[1]*r,e[2]=n[2]*r,e[3]=0,e[4]=n[4]*i,e[5]=n[5]*i,e[6]=n[6]*i,e[7]=0,e[8]=n[8]*s,e[9]=n[9]*s,e[10]=n[10]*s,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromEuler(t){t&&t.isEuler||console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.");const e=this.elements,n=t.x,r=t.y,i=t.z,s=Math.cos(n),o=Math.sin(n),a=Math.cos(r),l=Math.sin(r),c=Math.cos(i),h=Math.sin(i);if("XYZ"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=-a*h,e[8]=l,e[1]=n+r*l,e[5]=t-i*l,e[9]=-o*a,e[2]=i-t*l,e[6]=r+n*l,e[10]=s*a}else if("YXZ"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t+i*o,e[4]=r*o-n,e[8]=s*l,e[1]=s*h,e[5]=s*c,e[9]=-o,e[2]=n*o-r,e[6]=i+t*o,e[10]=s*a}else if("ZXY"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t-i*o,e[4]=-s*h,e[8]=r+n*o,e[1]=n+r*o,e[5]=s*c,e[9]=i-t*o,e[2]=-s*l,e[6]=o,e[10]=s*a}else if("ZYX"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=r*l-n,e[8]=t*l+i,e[1]=a*h,e[5]=i*l+t,e[9]=n*l-r,e[2]=-l,e[6]=o*a,e[10]=s*a}else if("YZX"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=i-t*h,e[8]=r*h+n,e[1]=h,e[5]=s*c,e[9]=-o*c,e[2]=-l*c,e[6]=n*h+r,e[10]=t-i*h}else if("XZY"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=-h,e[8]=l*c,e[1]=t*h+i,e[5]=s*c,e[9]=n*h-r,e[2]=r*h-n,e[6]=o*c,e[10]=i*h+t}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromQuaternion(t){return this.compose(Tr,t,Er)}lookAt(t,e,n){const r=this.elements;return Rr.subVectors(t,e),0===Rr.lengthSq()&&(Rr.z=1),Rr.normalize(),Ar.crossVectors(n,Rr),0===Ar.lengthSq()&&(1===Math.abs(n.z)?Rr.x+=1e-4:Rr.z+=1e-4,Rr.normalize(),Ar.crossVectors(n,Rr)),Ar.normalize(),Lr.crossVectors(Rr,Ar),r[0]=Ar.x,r[4]=Lr.x,r[8]=Rr.x,r[1]=Ar.y,r[5]=Lr.y,r[9]=Rr.y,r[2]=Ar.z,r[6]=Lr.z,r[10]=Rr.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(t,e)):this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[4],a=n[8],l=n[12],c=n[1],h=n[5],u=n[9],p=n[13],d=n[2],m=n[6],f=n[10],g=n[14],x=n[3],v=n[7],y=n[11],_=n[15],b=r[0],w=r[4],M=r[8],S=r[12],T=r[1],E=r[5],A=r[9],L=r[13],R=r[2],C=r[6],P=r[10],D=r[14],I=r[3],B=r[7],N=r[11],F=r[15];return i[0]=s*b+o*T+a*R+l*I,i[4]=s*w+o*E+a*C+l*B,i[8]=s*M+o*A+a*P+l*N,i[12]=s*S+o*L+a*D+l*F,i[1]=c*b+h*T+u*R+p*I,i[5]=c*w+h*E+u*C+p*B,i[9]=c*M+h*A+u*P+p*N,i[13]=c*S+h*L+u*D+p*F,i[2]=d*b+m*T+f*R+g*I,i[6]=d*w+m*E+f*C+g*B,i[10]=d*M+m*A+f*P+g*N,i[14]=d*S+m*L+f*D+g*F,i[3]=x*b+v*T+y*R+_*I,i[7]=x*w+v*E+y*C+_*B,i[11]=x*M+v*A+y*P+_*N,i[15]=x*S+v*L+y*D+_*F,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[4],r=t[8],i=t[12],s=t[1],o=t[5],a=t[9],l=t[13],c=t[2],h=t[6],u=t[10],p=t[14];return t[3]*(+i*a*h-r*l*h-i*o*u+n*l*u+r*o*p-n*a*p)+t[7]*(+e*a*p-e*l*u+i*s*u-r*s*p+r*l*c-i*a*c)+t[11]*(+e*l*h-e*o*p-i*s*h+n*s*p+i*o*c-n*l*c)+t[15]*(-r*o*c-e*a*h+e*o*u+r*s*h-n*s*u+n*a*c)}transpose(){const t=this.elements;let e;return e=t[1],t[1]=t[4],t[4]=e,e=t[2],t[2]=t[8],t[8]=e,e=t[6],t[6]=t[9],t[9]=e,e=t[3],t[3]=t[12],t[12]=e,e=t[7],t[7]=t[13],t[13]=e,e=t[11],t[11]=t[14],t[14]=e,this}setPosition(t,e,n){const r=this.elements;return t.isVector3?(r[12]=t.x,r[13]=t.y,r[14]=t.z):(r[12]=t,r[13]=e,r[14]=n),this}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=t[9],u=t[10],p=t[11],d=t[12],m=t[13],f=t[14],g=t[15],x=h*f*l-m*u*l+m*a*p-o*f*p-h*a*g+o*u*g,v=d*u*l-c*f*l-d*a*p+s*f*p+c*a*g-s*u*g,y=c*m*l-d*h*l+d*o*p-s*m*p-c*o*g+s*h*g,_=d*h*a-c*m*a-d*o*u+s*m*u+c*o*f-s*h*f,b=e*x+n*v+r*y+i*_;if(0===b)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const w=1/b;return t[0]=x*w,t[1]=(m*u*i-h*f*i-m*r*p+n*f*p+h*r*g-n*u*g)*w,t[2]=(o*f*i-m*a*i+m*r*l-n*f*l-o*r*g+n*a*g)*w,t[3]=(h*a*i-o*u*i-h*r*l+n*u*l+o*r*p-n*a*p)*w,t[4]=v*w,t[5]=(c*f*i-d*u*i+d*r*p-e*f*p-c*r*g+e*u*g)*w,t[6]=(d*a*i-s*f*i-d*r*l+e*f*l+s*r*g-e*a*g)*w,t[7]=(s*u*i-c*a*i+c*r*l-e*u*l-s*r*p+e*a*p)*w,t[8]=y*w,t[9]=(d*h*i-c*m*i-d*n*p+e*m*p+c*n*g-e*h*g)*w,t[10]=(s*m*i-d*o*i+d*n*l-e*m*l-s*n*g+e*o*g)*w,t[11]=(c*o*i-s*h*i-c*n*l+e*h*l+s*n*p-e*o*p)*w,t[12]=_*w,t[13]=(c*m*r-d*h*r+d*n*u-e*m*u-c*n*f+e*h*f)*w,t[14]=(d*o*r-s*m*r-d*n*a+e*m*a+s*n*f-e*o*f)*w,t[15]=(s*h*r-c*o*r+c*n*a-e*h*a-s*n*u+e*o*u)*w,this}scale(t){const e=this.elements,n=t.x,r=t.y,i=t.z;return e[0]*=n,e[4]*=r,e[8]*=i,e[1]*=n,e[5]*=r,e[9]*=i,e[2]*=n,e[6]*=r,e[10]*=i,e[3]*=n,e[7]*=r,e[11]*=i,this}getMaxScaleOnAxis(){const t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],n=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],r=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,n,r))}makeTranslation(t,e,n){return this.set(1,0,0,t,0,1,0,e,0,0,1,n,0,0,0,1),this}makeRotationX(t){const e=Math.cos(t),n=Math.sin(t);return this.set(1,0,0,0,0,e,-n,0,0,n,e,0,0,0,0,1),this}makeRotationY(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,0,n,0,0,1,0,0,-n,0,e,0,0,0,0,1),this}makeRotationZ(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,-n,0,0,n,e,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(t,e){const n=Math.cos(e),r=Math.sin(e),i=1-n,s=t.x,o=t.y,a=t.z,l=i*s,c=i*o;return this.set(l*s+n,l*o-r*a,l*a+r*o,0,l*o+r*a,c*o+n,c*a-r*s,0,l*a-r*o,c*a+r*s,i*a*a+n,0,0,0,0,1),this}makeScale(t,e,n){return this.set(t,0,0,0,0,e,0,0,0,0,n,0,0,0,0,1),this}makeShear(t,e,n){return this.set(1,e,n,0,t,1,n,0,t,e,1,0,0,0,0,1),this}compose(t,e,n){const r=this.elements,i=e._x,s=e._y,o=e._z,a=e._w,l=i+i,c=s+s,h=o+o,u=i*l,p=i*c,d=i*h,m=s*c,f=s*h,g=o*h,x=a*l,v=a*c,y=a*h,_=n.x,b=n.y,w=n.z;return r[0]=(1-(m+g))*_,r[1]=(p+y)*_,r[2]=(d-v)*_,r[3]=0,r[4]=(p-y)*b,r[5]=(1-(u+g))*b,r[6]=(f+x)*b,r[7]=0,r[8]=(d+v)*w,r[9]=(f-x)*w,r[10]=(1-(u+m))*w,r[11]=0,r[12]=t.x,r[13]=t.y,r[14]=t.z,r[15]=1,this}decompose(t,e,n){const r=this.elements;let i=Mr.set(r[0],r[1],r[2]).length();const s=Mr.set(r[4],r[5],r[6]).length(),o=Mr.set(r[8],r[9],r[10]).length();this.determinant()<0&&(i=-i),t.x=r[12],t.y=r[13],t.z=r[14],Sr.copy(this);const a=1/i,l=1/s,c=1/o;return Sr.elements[0]*=a,Sr.elements[1]*=a,Sr.elements[2]*=a,Sr.elements[4]*=l,Sr.elements[5]*=l,Sr.elements[6]*=l,Sr.elements[8]*=c,Sr.elements[9]*=c,Sr.elements[10]*=c,e.setFromRotationMatrix(Sr),n.x=i,n.y=s,n.z=o,this}makePerspective(t,e,n,r,i,s){void 0===s&&console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.");const o=this.elements,a=2*i/(e-t),l=2*i/(n-r),c=(e+t)/(e-t),h=(n+r)/(n-r),u=-(s+i)/(s-i),p=-2*s*i/(s-i);return o[0]=a,o[4]=0,o[8]=c,o[12]=0,o[1]=0,o[5]=l,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=u,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(t,e,n,r,i,s){const o=this.elements,a=1/(e-t),l=1/(n-r),c=1/(s-i),h=(e+t)*a,u=(n+r)*l,p=(s+i)*c;return o[0]=2*a,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*l,o[9]=0,o[13]=-u,o[2]=0,o[6]=0,o[10]=-2*c,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<16;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<16;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t[e+9]=n[9],t[e+10]=n[10],t[e+11]=n[11],t[e+12]=n[12],t[e+13]=n[13],t[e+14]=n[14],t[e+15]=n[15],t}}exports.Matrix4=wr,wr.prototype.isMatrix4=!0;const Mr=new Yn,Sr=new wr,Tr=new Yn(0,0,0),Er=new Yn(1,1,1),Ar=new Yn,Lr=new Yn,Rr=new Yn,Cr=new wr,Pr=new Xn;class Dr{constructor(t=0,e=0,n=0,r=Dr.DefaultOrder){this._x=t,this._y=e,this._z=n,this._order=r}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._order=r||this._order,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e,n){const r=Fn.clamp,i=t.elements,s=i[0],o=i[4],a=i[8],l=i[1],c=i[5],h=i[9],u=i[2],p=i[6],d=i[10];switch(e=e||this._order){case"XYZ":this._y=Math.asin(r(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-h,d),this._z=Math.atan2(-o,s)):(this._x=Math.atan2(p,c),this._z=0);break;case"YXZ":this._x=Math.asin(-r(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(l,c)):(this._y=Math.atan2(-u,s),this._z=0);break;case"ZXY":this._x=Math.asin(r(p,-1,1)),Math.abs(p)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-o,c)):(this._y=0,this._z=Math.atan2(l,s));break;case"ZYX":this._y=Math.asin(-r(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(p,d),this._z=Math.atan2(l,s)):(this._x=0,this._z=Math.atan2(-o,c));break;case"YZX":this._z=Math.asin(r(l,-1,1)),Math.abs(l)<.9999999?(this._x=Math.atan2(-h,c),this._y=Math.atan2(-u,s)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-r(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(p,c),this._y=Math.atan2(a,s)):(this._x=Math.atan2(-h,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!1!==n&&this._onChangeCallback(),this}setFromQuaternion(t,e,n){return Cr.makeRotationFromQuaternion(t),this.setFromRotationMatrix(Cr,e,n)}setFromVector3(t,e){return this.set(t.x,t.y,t.z,e||this._order)}reorder(t){return Pr.setFromEuler(this),this.setFromQuaternion(Pr,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t}toVector3(t){return t?t.set(this._x,this._y,this._z):new Yn(this._x,this._y,this._z)}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Euler=Dr,Dr.prototype.isEuler=!0,Dr.DefaultOrder="XYZ",Dr.RotationOrders=["XYZ","YZX","ZXY","XZY","YXZ","ZYX"];class Ir{constructor(){this.mask=1}set(t){this.mask=1<<t|0}enable(t){this.mask|=1<<t|0}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t|0}disable(t){this.mask&=~(1<<t|0)}disableAll(){this.mask=0}test(t){return 0!=(this.mask&t.mask)}}exports.Layers=Ir;let Br=0;const Nr=new Yn,Fr=new Xn,Or=new wr,zr=new Yn,Gr=new Yn,Hr=new Yn,Ur=new Xn,kr=new Yn(1,0,0),Vr=new Yn(0,1,0),Wr=new Yn(0,0,1),jr={type:"added"},qr={type:"removed"};function Xr(){Object.defineProperty(this,"id",{value:Br++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Xr.DefaultUp.clone();const t=new Yn,e=new Dr,n=new Xn,r=new Yn(1,1,1);e._onChange(function(){n.setFromEuler(e,!1)}),n._onChange(function(){e.setFromQuaternion(n,void 0,!1)}),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:n},scale:{configurable:!0,enumerable:!0,value:r},modelViewMatrix:{value:new wr},normalMatrix:{value:new zn}}),this.matrix=new wr,this.matrixWorld=new wr,this.matrixAutoUpdate=Xr.DefaultMatrixAutoUpdate,this.matrixWorldNeedsUpdate=!1,this.layers=new Ir,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}Xr.DefaultUp=new Yn(0,1,0),Xr.DefaultMatrixAutoUpdate=!0,Xr.prototype=Object.assign(Object.create(In.prototype),{constructor:Xr,isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix4:function(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(t){return this.quaternion.premultiply(t),this},setRotationFromAxisAngle:function(t,e){this.quaternion.setFromAxisAngle(t,e)},setRotationFromEuler:function(t){this.quaternion.setFromEuler(t,!0)},setRotationFromMatrix:function(t){this.quaternion.setFromRotationMatrix(t)},setRotationFromQuaternion:function(t){this.quaternion.copy(t)},rotateOnAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.multiply(Fr),this},rotateOnWorldAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.premultiply(Fr),this},rotateX:function(t){return this.rotateOnAxis(kr,t)},rotateY:function(t){return this.rotateOnAxis(Vr,t)},rotateZ:function(t){return this.rotateOnAxis(Wr,t)},translateOnAxis:function(t,e){return Nr.copy(t).applyQuaternion(this.quaternion),this.position.add(Nr.multiplyScalar(e)),this},translateX:function(t){return this.translateOnAxis(kr,t)},translateY:function(t){return this.translateOnAxis(Vr,t)},translateZ:function(t){return this.translateOnAxis(Wr,t)},localToWorld:function(t){return t.applyMatrix4(this.matrixWorld)},worldToLocal:function(t){return t.applyMatrix4(Or.copy(this.matrixWorld).invert())},lookAt:function(t,e,n){t.isVector3?zr.copy(t):zr.set(t,e,n);const r=this.parent;this.updateWorldMatrix(!0,!1),Gr.setFromMatrixPosition(this.matrixWorld),this.isCamera||this.isLight?Or.lookAt(Gr,zr,this.up):Or.lookAt(zr,Gr,this.up),this.quaternion.setFromRotationMatrix(Or),r&&(Or.extractRotation(r.matrixWorld),Fr.setFromRotationMatrix(Or),this.quaternion.premultiply(Fr.invert()))},add:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.add(arguments[t]);return this}return t===this?(console.error("THREE.Object3D.add: object can't be added as a child of itself.",t),this):(t&&t.isObject3D?(null!==t.parent&&t.parent.remove(t),t.parent=this,this.children.push(t),t.dispatchEvent(jr)):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t),this)},remove:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.remove(arguments[t]);return this}const e=this.children.indexOf(t);return-1!==e&&(t.parent=null,this.children.splice(e,1),t.dispatchEvent(qr)),this},clear:function(){for(let t=0;t<this.children.length;t++){const e=this.children[t];e.parent=null,e.dispatchEvent(qr)}return this.children.length=0,this},attach:function(t){return this.updateWorldMatrix(!0,!1),Or.copy(this.matrixWorld).invert(),null!==t.parent&&(t.parent.updateWorldMatrix(!0,!1),Or.multiply(t.parent.matrixWorld)),t.applyMatrix4(Or),this.add(t),t.updateWorldMatrix(!1,!0),this},getObjectById:function(t){return this.getObjectByProperty("id",t)},getObjectByName:function(t){return this.getObjectByProperty("name",t)},getObjectByProperty:function(t,e){if(this[t]===e)return this;for(let n=0,r=this.children.length;n<r;n++){const r=this.children[n].getObjectByProperty(t,e);if(void 0!==r)return r}},getWorldPosition:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldPosition() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),t.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldQuaternion() target is now required"),t=new Xn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,t,Hr),t},getWorldScale:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldScale() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,Ur,t),t},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Object3D: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(e[8],e[9],e[10]).normalize()},raycast:function(){},traverse:function(t){t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverse(t)},traverseVisible:function(t){if(!1===this.visible)return;t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverseVisible(t)},traverseAncestors:function(t){const e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))},updateMatrix:function(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,t=!0);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].updateMatrixWorld(t)},updateWorldMatrix:function(t,e){const n=this.parent;if(!0===t&&null!==n&&n.updateWorldMatrix(!0,!1),this.matrixAutoUpdate&&this.updateMatrix(),null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),!0===e){const t=this.children;for(let e=0,n=t.length;e<n;e++)t[e].updateWorldMatrix(!1,!0)}},toJSON:function(t){const e=void 0===t||"string"==typeof t,n={};e&&(t={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{}},n.metadata={version:4.5,type:"Object",generator:"Object3D.toJSON"});const r={};function i(e,n){return void 0===e[n.uuid]&&(e[n.uuid]=n.toJSON(t)),n.uuid}if(r.uuid=this.uuid,r.type=this.type,""!==this.name&&(r.name=this.name),!0===this.castShadow&&(r.castShadow=!0),!0===this.receiveShadow&&(r.receiveShadow=!0),!1===this.visible&&(r.visible=!1),!1===this.frustumCulled&&(r.frustumCulled=!1),0!==this.renderOrder&&(r.renderOrder=this.renderOrder),"{}"!==JSON.stringify(this.userData)&&(r.userData=this.userData),r.layers=this.layers.mask,r.matrix=this.matrix.toArray(),!1===this.matrixAutoUpdate&&(r.matrixAutoUpdate=!1),this.isInstancedMesh&&(r.type="InstancedMesh",r.count=this.count,r.instanceMatrix=this.instanceMatrix.toJSON()),this.isMesh||this.isLine||this.isPoints){r.geometry=i(t.geometries,this.geometry);const e=this.geometry.parameters;if(void 0!==e&&void 0!==e.shapes){const n=e.shapes;if(Array.isArray(n))for(let e=0,r=n.length;e<r;e++){const r=n[e];i(t.shapes,r)}else i(t.shapes,n)}}if(this.isSkinnedMesh&&(r.bindMode=this.bindMode,r.bindMatrix=this.bindMatrix.toArray(),void 0!==this.skeleton&&(i(t.skeletons,this.skeleton),r.skeleton=this.skeleton.uuid)),void 0!==this.material)if(Array.isArray(this.material)){const e=[];for(let n=0,r=this.material.length;n<r;n++)e.push(i(t.materials,this.material[n]));r.material=e}else r.material=i(t.materials,this.material);if(this.children.length>0){r.children=[];for(let e=0;e<this.children.length;e++)r.children.push(this.children[e].toJSON(t).object)}if(this.animations.length>0){r.animations=[];for(let e=0;e<this.animations.length;e++){const n=this.animations[e];r.animations.push(i(t.animations,n))}}if(e){const e=s(t.geometries),r=s(t.materials),i=s(t.textures),o=s(t.images),a=s(t.shapes),l=s(t.skeletons),c=s(t.animations);e.length>0&&(n.geometries=e),r.length>0&&(n.materials=r),i.length>0&&(n.textures=i),o.length>0&&(n.images=o),a.length>0&&(n.shapes=a),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c)}return n.object=r,n;function s(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}},clone:function(t){return(new this.constructor).copy(this,t)},copy:function(t,e=!0){if(this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.rotation.order=t.rotation.order,this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(let n=0;n<t.children.length;n++){const e=t.children[n];this.add(e.clone())}return this}});const Yr=new Yn,Zr=new Yn,Jr=new zn;class Qr{constructor(t=new Yn(1,0,0),e=0){this.normal=t,this.constant=e}set(t,e){return this.normal.copy(t),this.constant=e,this}setComponents(t,e,n,r){return this.normal.set(t,e,n),this.constant=r,this}setFromNormalAndCoplanarPoint(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this}setFromCoplanarPoints(t,e,n){const r=Yr.subVectors(n,e).cross(Zr.subVectors(t,e)).normalize();return this.setFromNormalAndCoplanarPoint(r,t),this}copy(t){return this.normal.copy(t.normal),this.constant=t.constant,this}normalize(){const t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(t){return this.normal.dot(t)+this.constant}distanceToSphere(t){return this.distanceToPoint(t.center)-t.radius}projectPoint(t,e){return void 0===e&&(console.warn("THREE.Plane: .projectPoint() target is now required"),e=new Yn),e.copy(this.normal).multiplyScalar(-this.distanceToPoint(t)).add(t)}intersectLine(t,e){void 0===e&&(console.warn("THREE.Plane: .intersectLine() target is now required"),e=new Yn);const n=t.delta(Yr),r=this.normal.dot(n);if(0===r)return 0===this.distanceToPoint(t.start)?e.copy(t.start):void 0;const i=-(t.start.dot(this.normal)+this.constant)/r;return i<0||i>1?void 0:e.copy(n).multiplyScalar(i).add(t.start)}intersectsLine(t){const e=this.distanceToPoint(t.start),n=this.distanceToPoint(t.end);return e<0&&n>0||n<0&&e>0}intersectsBox(t){return t.intersectsPlane(this)}intersectsSphere(t){return t.intersectsPlane(this)}coplanarPoint(t){return void 0===t&&(console.warn("THREE.Plane: .coplanarPoint() target is now required"),t=new Yn),t.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(t,e){const n=e||Jr.getNormalMatrix(t),r=this.coplanarPoint(Yr).applyMatrix4(t),i=this.normal.applyMatrix3(n).normalize();return this.constant=-r.dot(i),this}translate(t){return this.constant-=t.dot(this.normal),this}equals(t){return t.normal.equals(this.normal)&&t.constant===this.constant}clone(){return(new this.constructor).copy(this)}}exports.Plane=Qr,Qr.prototype.isPlane=!0;const Kr=new Yn,$r=new Yn,ti=new Yn,ei=new Yn,ni=new Yn,ri=new Yn,ii=new Yn,si=new Yn,oi=new Yn,ai=new Yn;class li{constructor(t=new Yn,e=new Yn,n=new Yn){this.a=t,this.b=e,this.c=n}static getNormal(t,e,n,r){void 0===r&&(console.warn("THREE.Triangle: .getNormal() target is now required"),r=new Yn),r.subVectors(n,e),Kr.subVectors(t,e),r.cross(Kr);const i=r.lengthSq();return i>0?r.multiplyScalar(1/Math.sqrt(i)):r.set(0,0,0)}static getBarycoord(t,e,n,r,i){Kr.subVectors(r,e),$r.subVectors(n,e),ti.subVectors(t,e);const s=Kr.dot(Kr),o=Kr.dot($r),a=Kr.dot(ti),l=$r.dot($r),c=$r.dot(ti),h=s*l-o*o;if(void 0===i&&(console.warn("THREE.Triangle: .getBarycoord() target is now required"),i=new Yn),0===h)return i.set(-2,-1,-1);const u=1/h,p=(l*a-o*c)*u,d=(s*c-o*a)*u;return i.set(1-p-d,d,p)}static containsPoint(t,e,n,r){return this.getBarycoord(t,e,n,r,ei),ei.x>=0&&ei.y>=0&&ei.x+ei.y<=1}static getUV(t,e,n,r,i,s,o,a){return this.getBarycoord(t,e,n,r,ei),a.set(0,0),a.addScaledVector(i,ei.x),a.addScaledVector(s,ei.y),a.addScaledVector(o,ei.z),a}static isFrontFacing(t,e,n,r){return Kr.subVectors(n,e),$r.subVectors(t,e),Kr.cross($r).dot(r)<0}set(t,e,n){return this.a.copy(t),this.b.copy(e),this.c.copy(n),this}setFromPointsAndIndices(t,e,n,r){return this.a.copy(t[e]),this.b.copy(t[n]),this.c.copy(t[r]),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this}getArea(){return Kr.subVectors(this.c,this.b),$r.subVectors(this.a,this.b),.5*Kr.cross($r).length()}getMidpoint(t){return void 0===t&&(console.warn("THREE.Triangle: .getMidpoint() target is now required"),t=new Yn),t.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(t){return li.getNormal(this.a,this.b,this.c,t)}getPlane(t){return void 0===t&&(console.warn("THREE.Triangle: .getPlane() target is now required"),t=new Qr),t.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(t,e){return li.getBarycoord(t,this.a,this.b,this.c,e)}getUV(t,e,n,r,i){return li.getUV(t,this.a,this.b,this.c,e,n,r,i)}containsPoint(t){return li.containsPoint(t,this.a,this.b,this.c)}isFrontFacing(t){return li.isFrontFacing(this.a,this.b,this.c,t)}intersectsBox(t){return t.intersectsTriangle(this)}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Triangle: .closestPointToPoint() target is now required"),e=new Yn);const n=this.a,r=this.b,i=this.c;let s,o;ni.subVectors(r,n),ri.subVectors(i,n),si.subVectors(t,n);const a=ni.dot(si),l=ri.dot(si);if(a<=0&&l<=0)return e.copy(n);oi.subVectors(t,r);const c=ni.dot(oi),h=ri.dot(oi);if(c>=0&&h<=c)return e.copy(r);const u=a*h-c*l;if(u<=0&&a>=0&&c<=0)return s=a/(a-c),e.copy(n).addScaledVector(ni,s);ai.subVectors(t,i);const p=ni.dot(ai),d=ri.dot(ai);if(d>=0&&p<=d)return e.copy(i);const m=p*l-a*d;if(m<=0&&l>=0&&d<=0)return o=l/(l-d),e.copy(n).addScaledVector(ri,o);const f=c*d-p*h;if(f<=0&&h-c>=0&&p-d>=0)return ii.subVectors(i,r),o=(h-c)/(h-c+(p-d)),e.copy(r).addScaledVector(ii,o);const g=1/(f+m+u);return s=m*g,o=u*g,e.copy(n).addScaledVector(ni,s).addScaledVector(ri,o)}equals(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}exports.Triangle=li;let ci=0;function hi(){Object.defineProperty(this,"id",{value:ci++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Material",this.fog=!0,this.blending=x,this.side=u,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.blendSrc=P,this.blendDst=D,this.blendEquation=w,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=U,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=bn,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=an,this.stencilZFail=an,this.stencilZPass=an,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaTest=0,this.premultipliedAlpha=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0}hi.prototype=Object.assign(Object.create(In.prototype),{constructor:hi,isMaterial:!0,onBeforeCompile:function(){},customProgramCacheKey:function(){return this.onBeforeCompile.toString()},setValues:function(t){if(void 0!==t)for(const e in t){const n=t[e];if(void 0===n){console.warn("THREE.Material: '"+e+"' parameter is undefined.");continue}if("shading"===e){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===n;continue}const r=this[e];void 0!==r?r&&r.isColor?r.set(n):r&&r.isVector3&&n&&n.isVector3?r.copy(n):this[e]=n:console.warn("THREE."+this.type+": '"+e+"' is not a property of this material.")}},toJSON:function(t){const e=void 0===t||"string"==typeof t;e&&(t={textures:{},images:{}});const n={metadata:{version:4.5,type:"Material",generator:"Material.toJSON"}};function r(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),this.sheen&&this.sheen.isColor&&(n.sheen=this.sheen.getHex()),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(t).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(t).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(t).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(t).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(t).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(t).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(t).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(t).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(t).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(t).uuid,n.reflectivity=this.reflectivity,n.refractionRatio=this.refractionRatio,void 0!==this.combine&&(n.combine=this.combine),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity)),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.size&&(n.size=this.size),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),this.blending!==x&&(n.blending=this.blending),this.side!==u&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.morphTargets&&(n.morphTargets=!0),!0===this.morphNormals&&(n.morphNormals=!0),!0===this.skinning&&(n.skinning=!0),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),"{}"!==JSON.stringify(this.userData)&&(n.userData=this.userData),e){const e=r(t.textures),i=r(t.images);e.length>0&&(n.textures=e),i.length>0&&(n.images=i)}return n},clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.name=t.name,this.fog=t.fog,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;const e=t.clippingPlanes;let n=null;if(null!==e){const t=e.length;n=new Array(t);for(let r=0;r!==t;++r)n[r]=e[r].clone()}return this.clippingPlanes=n,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.premultipliedAlpha=t.premultipliedAlpha,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this},dispose:function(){this.dispatchEvent({type:"dispose"})}}),Object.defineProperty(hi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}});const ui={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},pi={h:0,s:0,l:0},di={h:0,s:0,l:0};function mi(t,e,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?t+6*(e-t)*n:n<.5?e:n<2/3?t+6*(e-t)*(2/3-n):t}function fi(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}function gi(t){return t<.0031308?12.92*t:1.055*Math.pow(t,.41666)-.055}class xi{constructor(t,e,n){return void 0===e&&void 0===n?this.set(t):this.setRGB(t,e,n)}set(t){return t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t),this}setScalar(t){return this.r=t,this.g=t,this.b=t,this}setHex(t){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,this}setRGB(t,e,n){return this.r=t,this.g=e,this.b=n,this}setHSL(t,e,n){if(t=Fn.euclideanModulo(t,1),e=Fn.clamp(e,0,1),n=Fn.clamp(n,0,1),0===e)this.r=this.g=this.b=n;else{const r=n<=.5?n*(1+e):n+e-n*e,i=2*n-r;this.r=mi(i,r,t+1/3),this.g=mi(i,r,t),this.b=mi(i,r,t-1/3)}return this}setStyle(t){function e(e){void 0!==e&&parseFloat(e)<1&&console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")}let n;if(n=/^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(t)){let t;const r=n[1],i=n[2];switch(r){case"rgb":case"rgba":if(t=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(255,parseInt(t[1],10))/255,this.g=Math.min(255,parseInt(t[2],10))/255,this.b=Math.min(255,parseInt(t[3],10))/255,e(t[4]),this;if(t=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(100,parseInt(t[1],10))/100,this.g=Math.min(100,parseInt(t[2],10))/100,this.b=Math.min(100,parseInt(t[3],10))/100,e(t[4]),this;break;case"hsl":case"hsla":if(t=/^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i)){const n=parseFloat(t[1])/360,r=parseInt(t[2],10)/100,i=parseInt(t[3],10)/100;return e(t[4]),this.setHSL(n,r,i)}}}else if(n=/^\#([A-Fa-f\d]+)$/.exec(t)){const t=n[1],e=t.length;if(3===e)return this.r=parseInt(t.charAt(0)+t.charAt(0),16)/255,this.g=parseInt(t.charAt(1)+t.charAt(1),16)/255,this.b=parseInt(t.charAt(2)+t.charAt(2),16)/255,this;if(6===e)return this.r=parseInt(t.charAt(0)+t.charAt(1),16)/255,this.g=parseInt(t.charAt(2)+t.charAt(3),16)/255,this.b=parseInt(t.charAt(4)+t.charAt(5),16)/255,this}return t&&t.length>0?this.setColorName(t):this}setColorName(t){const e=ui[t];return void 0!==e?this.setHex(e):console.warn("THREE.Color: Unknown color "+t),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(t){return this.r=t.r,this.g=t.g,this.b=t.b,this}copyGammaToLinear(t,e=2){return this.r=Math.pow(t.r,e),this.g=Math.pow(t.g,e),this.b=Math.pow(t.b,e),this}copyLinearToGamma(t,e=2){const n=e>0?1/e:1;return this.r=Math.pow(t.r,n),this.g=Math.pow(t.g,n),this.b=Math.pow(t.b,n),this}convertGammaToLinear(t){return this.copyGammaToLinear(this,t),this}convertLinearToGamma(t){return this.copyLinearToGamma(this,t),this}copySRGBToLinear(t){return this.r=fi(t.r),this.g=fi(t.g),this.b=fi(t.b),this}copyLinearToSRGB(t){return this.r=gi(t.r),this.g=gi(t.g),this.b=gi(t.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(){return 255*this.r<<16^255*this.g<<8^255*this.b<<0}getHexString(){return("000000"+this.getHex().toString(16)).slice(-6)}getHSL(t){void 0===t&&(console.warn("THREE.Color: .getHSL() target is now required"),t={h:0,s:0,l:0});const e=this.r,n=this.g,r=this.b,i=Math.max(e,n,r),s=Math.min(e,n,r);let o,a;const l=(s+i)/2;if(s===i)o=0,a=0;else{const t=i-s;switch(a=l<=.5?t/(i+s):t/(2-i-s),i){case e:o=(n-r)/t+(n<r?6:0);break;case n:o=(r-e)/t+2;break;case r:o=(e-n)/t+4}o/=6}return t.h=o,t.s=a,t.l=l,t}getStyle(){return"rgb("+(255*this.r|0)+","+(255*this.g|0)+","+(255*this.b|0)+")"}offsetHSL(t,e,n){return this.getHSL(pi),pi.h+=t,pi.s+=e,pi.l+=n,this.setHSL(pi.h,pi.s,pi.l),this}add(t){return this.r+=t.r,this.g+=t.g,this.b+=t.b,this}addColors(t,e){return this.r=t.r+e.r,this.g=t.g+e.g,this.b=t.b+e.b,this}addScalar(t){return this.r+=t,this.g+=t,this.b+=t,this}sub(t){return this.r=Math.max(0,this.r-t.r),this.g=Math.max(0,this.g-t.g),this.b=Math.max(0,this.b-t.b),this}multiply(t){return this.r*=t.r,this.g*=t.g,this.b*=t.b,this}multiplyScalar(t){return this.r*=t,this.g*=t,this.b*=t,this}lerp(t,e){return this.r+=(t.r-this.r)*e,this.g+=(t.g-this.g)*e,this.b+=(t.b-this.b)*e,this}lerpColors(t,e,n){return this.r=t.r+(e.r-t.r)*n,this.g=t.g+(e.g-t.g)*n,this.b=t.b+(e.b-t.b)*n,this}lerpHSL(t,e){this.getHSL(pi),t.getHSL(di);const n=Fn.lerp(pi.h,di.h,e),r=Fn.lerp(pi.s,di.s,e),i=Fn.lerp(pi.l,di.l,e);return this.setHSL(n,r,i),this}equals(t){return t.r===this.r&&t.g===this.g&&t.b===this.b}fromArray(t,e=0){return this.r=t[e],this.g=t[e+1],this.b=t[e+2],this}toArray(t=[],e=0){return t[e]=this.r,t[e+1]=this.g,t[e+2]=this.b,t}fromBufferAttribute(t,e){return this.r=t.getX(e),this.g=t.getY(e),this.b=t.getZ(e),!0===t.normalized&&(this.r/=255,this.g/=255,this.b/=255),this}toJSON(){return this.getHex()}}exports.Color=xi,xi.NAMES=ui,xi.prototype.isColor=!0,xi.prototype.r=1,xi.prototype.g=1,xi.prototype.b=1;class vi extends hi{constructor(t){super(),this.type="MeshBasicMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this}}exports.MeshBasicMaterial=vi,vi.prototype.isMeshBasicMaterial=!0;const yi=new Yn,_i=new On;function bi(t,e,n){if(Array.isArray(t))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.name="",this.array=t,this.itemSize=e,this.count=void 0!==t?t.length/e:0,this.normalized=!0===n,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0}function wi(t,e,n){bi.call(this,new Int8Array(t),e,n)}function Mi(t,e,n){bi.call(this,new Uint8Array(t),e,n)}function Si(t,e,n){bi.call(this,new Uint8ClampedArray(t),e,n)}function Ti(t,e,n){bi.call(this,new Int16Array(t),e,n)}function Ei(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ai(t,e,n){bi.call(this,new Int32Array(t),e,n)}function Li(t,e,n){bi.call(this,new Uint32Array(t),e,n)}function Ri(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ci(t,e,n){bi.call(this,new Float32Array(t),e,n)}function Pi(t,e,n){bi.call(this,new Float64Array(t),e,n)}function Di(t){if(0===t.length)return-1/0;let e=t[0];for(let n=1,r=t.length;n<r;++n)t[n]>e&&(e=t[n]);return e}Object.defineProperty(bi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(bi.prototype,{isBufferAttribute:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.itemSize,n*=e.itemSize;for(let r=0,i=this.itemSize;r<i;r++)this.array[t+r]=e.array[n+r];return this},copyArray:function(t){return this.array.set(t),this},copyColorsArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",r),i=new xi),e[n++]=i.r,e[n++]=i.g,e[n++]=i.b}return this},copyVector2sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",r),i=new On),e[n++]=i.x,e[n++]=i.y}return this},copyVector3sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",r),i=new Yn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z}return this},copyVector4sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",r),i=new Wn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z,e[n++]=i.w}return this},applyMatrix3:function(t){if(2===this.itemSize)for(let e=0,n=this.count;e<n;e++)_i.fromBufferAttribute(this,e),_i.applyMatrix3(t),this.setXY(e,_i.x,_i.y);else if(3===this.itemSize)for(let e=0,n=this.count;e<n;e++)yi.fromBufferAttribute(this,e),yi.applyMatrix3(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyMatrix4:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyMatrix4(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyNormalMatrix:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyNormalMatrix(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},transformDirection:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.transformDirection(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},set:function(t,e=0){return this.array.set(t,e),this},getX:function(t){return this.array[t*this.itemSize]},setX:function(t,e){return this.array[t*this.itemSize]=e,this},getY:function(t){return this.array[t*this.itemSize+1]},setY:function(t,e){return this.array[t*this.itemSize+1]=e,this},getZ:function(t){return this.array[t*this.itemSize+2]},setZ:function(t,e){return this.array[t*this.itemSize+2]=e,this},getW:function(t){return this.array[t*this.itemSize+3]},setW:function(t,e){return this.array[t*this.itemSize+3]=e,this},setXY:function(t,e,n){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this.array[t+3]=i,this},onUpload:function(t){return this.onUploadCallback=t,this},clone:function(){return new this.constructor(this.array,this.itemSize).copy(this)},toJSON:function(){return{itemSize:this.itemSize,type:this.array.constructor.name,array:Array.prototype.slice.call(this.array),normalized:this.normalized}}}),wi.prototype=Object.create(bi.prototype),wi.prototype.constructor=wi,Mi.prototype=Object.create(bi.prototype),Mi.prototype.constructor=Mi,Si.prototype=Object.create(bi.prototype),Si.prototype.constructor=Si,Ti.prototype=Object.create(bi.prototype),Ti.prototype.constructor=Ti,Ei.prototype=Object.create(bi.prototype),Ei.prototype.constructor=Ei,Ai.prototype=Object.create(bi.prototype),Ai.prototype.constructor=Ai,Li.prototype=Object.create(bi.prototype),Li.prototype.constructor=Li,Ri.prototype=Object.create(bi.prototype),Ri.prototype.constructor=Ri,Ri.prototype.isFloat16BufferAttribute=!0,Ci.prototype=Object.create(bi.prototype),Ci.prototype.constructor=Ci,Pi.prototype=Object.create(bi.prototype),Pi.prototype.constructor=Pi;const Ii={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:Uint8ClampedArray,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};function Bi(t,e){return new Ii[t](e)}let Ni=0;const Fi=new wr,Oi=new Xr,zi=new Yn,Gi=new Qn,Hi=new Qn,Ui=new Yn;function ki(){Object.defineProperty(this,"id",{value:Ni++}),this.uuid=Fn.generateUUID(),this.name="",this.type="BufferGeometry",this.index=null,this.attributes={},this.morphAttributes={},this.morphTargetsRelative=!1,this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.drawRange={start:0,count:1/0},this.userData={}}ki.prototype=Object.assign(Object.create(In.prototype),{constructor:ki,isBufferGeometry:!0,getIndex:function(){return this.index},setIndex:function(t){return Array.isArray(t)?this.index=new(Di(t)>65535?Li:Ei)(t,1):this.index=t,this},getAttribute:function(t){return this.attributes[t]},setAttribute:function(t,e){return this.attributes[t]=e,this},deleteAttribute:function(t){return delete this.attributes[t],this},hasAttribute:function(t){return void 0!==this.attributes[t]},addGroup:function(t,e,n=0){this.groups.push({start:t,count:e,materialIndex:n})},clearGroups:function(){this.groups=[]},setDrawRange:function(t,e){this.drawRange.start=t,this.drawRange.count=e},applyMatrix4:function(t){const e=this.attributes.position;void 0!==e&&(e.applyMatrix4(t),e.needsUpdate=!0);const n=this.attributes.normal;if(void 0!==n){const e=(new zn).getNormalMatrix(t);n.applyNormalMatrix(e),n.needsUpdate=!0}const r=this.attributes.tangent;return void 0!==r&&(r.transformDirection(t),r.needsUpdate=!0),null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this},rotateX:function(t){return Fi.makeRotationX(t),this.applyMatrix4(Fi),this},rotateY:function(t){return Fi.makeRotationY(t),this.applyMatrix4(Fi),this},rotateZ:function(t){return Fi.makeRotationZ(t),this.applyMatrix4(Fi),this},translate:function(t,e,n){return Fi.makeTranslation(t,e,n),this.applyMatrix4(Fi),this},scale:function(t,e,n){return Fi.makeScale(t,e,n),this.applyMatrix4(Fi),this},lookAt:function(t){return Oi.lookAt(t),Oi.updateMatrix(),this.applyMatrix4(Oi.matrix),this},center:function(){return this.computeBoundingBox(),this.boundingBox.getCenter(zi).negate(),this.translate(zi.x,zi.y,zi.z),this},setFromPoints:function(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n];e.push(r.x,r.y,r.z||0)}return this.setAttribute("position",new Ci(e,3)),this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new Qn);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingBox.set(new Yn(-1/0,-1/0,-1/0),new Yn(1/0,1/0,1/0));if(void 0!==t){if(this.boundingBox.setFromBufferAttribute(t),e)for(let n=0,r=e.length;n<r;n++){const t=e[n];Gi.setFromBufferAttribute(t),this.morphTargetsRelative?(Ui.addVectors(this.boundingBox.min,Gi.min),this.boundingBox.expandByPoint(Ui),Ui.addVectors(this.boundingBox.max,Gi.max),this.boundingBox.expandByPoint(Ui)):(this.boundingBox.expandByPoint(Gi.min),this.boundingBox.expandByPoint(Gi.max))}}else this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new dr);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingSphere.set(new Yn,1/0);if(t){const n=this.boundingSphere.center;if(Gi.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const n=e[t];Hi.setFromBufferAttribute(n),this.morphTargetsRelative?(Ui.addVectors(Gi.min,Hi.min),Gi.expandByPoint(Ui),Ui.addVectors(Gi.max,Hi.max),Gi.expandByPoint(Ui)):(Gi.expandByPoint(Hi.min),Gi.expandByPoint(Hi.max))}Gi.getCenter(n);let r=0;for(let e=0,i=t.count;e<i;e++)Ui.fromBufferAttribute(t,e),r=Math.max(r,n.distanceToSquared(Ui));if(e)for(let i=0,s=e.length;i<s;i++){const s=e[i],o=this.morphTargetsRelative;for(let e=0,i=s.count;e<i;e++)Ui.fromBufferAttribute(s,e),o&&(zi.fromBufferAttribute(t,e),Ui.add(zi)),r=Math.max(r,n.distanceToSquared(Ui))}this.boundingSphere.radius=Math.sqrt(r),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}},computeFaceNormals:function(){},computeTangents:function(){const t=this.index,e=this.attributes;if(null===t||void 0===e.position||void 0===e.normal||void 0===e.uv)return void console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");const n=t.array,r=e.position.array,i=e.normal.array,s=e.uv.array,o=r.length/3;void 0===e.tangent&&this.setAttribute("tangent",new bi(new Float32Array(4*o),4));const a=e.tangent.array,l=[],c=[];for(let T=0;T<o;T++)l[T]=new Yn,c[T]=new Yn;const h=new Yn,u=new Yn,p=new Yn,d=new On,m=new On,f=new On,g=new Yn,x=new Yn;function v(t,e,n){h.fromArray(r,3*t),u.fromArray(r,3*e),p.fromArray(r,3*n),d.fromArray(s,2*t),m.fromArray(s,2*e),f.fromArray(s,2*n),u.sub(h),p.sub(h),m.sub(d),f.sub(d);const i=1/(m.x*f.y-f.x*m.y);isFinite(i)&&(g.copy(u).multiplyScalar(f.y).addScaledVector(p,-m.y).multiplyScalar(i),x.copy(p).multiplyScalar(m.x).addScaledVector(u,-f.x).multiplyScalar(i),l[t].add(g),l[e].add(g),l[n].add(g),c[t].add(x),c[e].add(x),c[n].add(x))}let y=this.groups;0===y.length&&(y=[{start:0,count:n.length}]);for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)v(n[r+0],n[r+1],n[r+2])}const _=new Yn,b=new Yn,w=new Yn,M=new Yn;function S(t){w.fromArray(i,3*t),M.copy(w);const e=l[t];_.copy(e),_.sub(w.multiplyScalar(w.dot(e))).normalize(),b.crossVectors(M,e);const n=b.dot(c[t])<0?-1:1;a[4*t]=_.x,a[4*t+1]=_.y,a[4*t+2]=_.z,a[4*t+3]=n}for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)S(n[r+0]),S(n[r+1]),S(n[r+2])}},computeVertexNormals:function(){const t=this.index,e=this.getAttribute("position");if(void 0!==e){let n=this.getAttribute("normal");if(void 0===n)n=new bi(new Float32Array(3*e.count),3),this.setAttribute("normal",n);else for(let t=0,e=n.count;t<e;t++)n.setXYZ(t,0,0,0);const r=new Yn,i=new Yn,s=new Yn,o=new Yn,a=new Yn,l=new Yn,c=new Yn,h=new Yn;if(t)for(let u=0,p=t.count;u<p;u+=3){const p=t.getX(u+0),d=t.getX(u+1),m=t.getX(u+2);r.fromBufferAttribute(e,p),i.fromBufferAttribute(e,d),s.fromBufferAttribute(e,m),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),o.fromBufferAttribute(n,p),a.fromBufferAttribute(n,d),l.fromBufferAttribute(n,m),o.add(c),a.add(c),l.add(c),n.setXYZ(p,o.x,o.y,o.z),n.setXYZ(d,a.x,a.y,a.z),n.setXYZ(m,l.x,l.y,l.z)}else for(let t=0,u=e.count;t<u;t+=3)r.fromBufferAttribute(e,t+0),i.fromBufferAttribute(e,t+1),s.fromBufferAttribute(e,t+2),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),n.setXYZ(t+0,c.x,c.y,c.z),n.setXYZ(t+1,c.x,c.y,c.z),n.setXYZ(t+2,c.x,c.y,c.z);this.normalizeNormals(),n.needsUpdate=!0}},merge:function(t,e){if(!t||!t.isBufferGeometry)return void console.error("THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.",t);void 0===e&&(e=0,console.warn("THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge."));const n=this.attributes;for(const r in n){if(void 0===t.attributes[r])continue;const i=n[r].array,s=t.attributes[r],o=s.array,a=s.itemSize*e,l=Math.min(o.length,i.length-a);for(let t=0,e=a;t<l;t++,e++)i[e]=o[t]}return this},normalizeNormals:function(){const t=this.attributes.normal;for(let e=0,n=t.count;e<n;e++)Ui.fromBufferAttribute(t,e),Ui.normalize(),t.setXYZ(e,Ui.x,Ui.y,Ui.z)},toNonIndexed:function(){function t(t,e){const n=t.array,r=t.itemSize,i=t.normalized,s=new n.constructor(e.length*r);let o=0,a=0;for(let l=0,c=e.length;l<c;l++){o=e[l]*r;for(let t=0;t<r;t++)s[a++]=n[o++]}return new bi(s,r,i)}if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed."),this;const e=new ki,n=this.index.array,r=this.attributes;for(const o in r){const i=t(r[o],n);e.setAttribute(o,i)}const i=this.morphAttributes;for(const o in i){const r=[],s=i[o];for(let e=0,i=s.length;e<i;e++){const i=t(s[e],n);r.push(i)}e.morphAttributes[o]=r}e.morphTargetsRelative=this.morphTargetsRelative;const s=this.groups;for(let o=0,a=s.length;o<a;o++){const t=s[o];e.addGroup(t.start,t.count,t.materialIndex)}return e},toJSON:function(){const t={metadata:{version:4.5,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};if(t.uuid=this.uuid,t.type=this.type,""!==this.name&&(t.name=this.name),Object.keys(this.userData).length>0&&(t.userData=this.userData),void 0!==this.parameters){const e=this.parameters;for(const n in e)void 0!==e[n]&&(t[n]=e[n]);return t}t.data={attributes:{}};const e=this.index;null!==e&&(t.data.index={type:e.array.constructor.name,array:Array.prototype.slice.call(e.array)});const n=this.attributes;for(const a in n){const e=n[a],r=e.toJSON(t.data);""!==e.name&&(r.name=e.name),t.data.attributes[a]=r}const r={};let i=!1;for(const a in this.morphAttributes){const e=this.morphAttributes[a],n=[];for(let r=0,i=e.length;r<i;r++){const i=e[r],s=i.toJSON(t.data);""!==i.name&&(s.name=i.name),n.push(s)}n.length>0&&(r[a]=n,i=!0)}i&&(t.data.morphAttributes=r,t.data.morphTargetsRelative=this.morphTargetsRelative);const s=this.groups;s.length>0&&(t.data.groups=JSON.parse(JSON.stringify(s)));const o=this.boundingSphere;return null!==o&&(t.data.boundingSphere={center:o.center.toArray(),radius:o.radius}),t},clone:function(){return(new ki).copy(this)},copy:function(t){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const e={};this.name=t.name;const n=t.index;null!==n&&this.setIndex(n.clone(e));const r=t.attributes;for(const l in r){const t=r[l];this.setAttribute(l,t.clone(e))}const i=t.morphAttributes;for(const l in i){const t=[],n=i[l];for(let r=0,i=n.length;r<i;r++)t.push(n[r].clone(e));this.morphAttributes[l]=t}this.morphTargetsRelative=t.morphTargetsRelative;const s=t.groups;for(let l=0,c=s.length;l<c;l++){const t=s[l];this.addGroup(t.start,t.count,t.materialIndex)}const o=t.boundingBox;null!==o&&(this.boundingBox=o.clone());const a=t.boundingSphere;return null!==a&&(this.boundingSphere=a.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this.userData=t.userData,this},dispose:function(){this.dispatchEvent({type:"dispose"})}});const Vi=new wr,Wi=new br,ji=new dr,qi=new Yn,Xi=new Yn,Yi=new Yn,Zi=new Yn,Ji=new Yn,Qi=new Yn,Ki=new Yn,$i=new Yn,ts=new Yn,es=new On,ns=new On,rs=new On,is=new Yn,ss=new Yn;function os(t=new ki,e=new vi){Xr.call(this),this.type="Mesh",this.geometry=t,this.material=e,this.updateMorphTargets()}function as(t,e,n,r,i,s,o,a){let l;if(null===(l=e.side===p?r.intersectTriangle(o,s,i,!0,a):r.intersectTriangle(i,s,o,e.side!==d,a)))return null;ss.copy(a),ss.applyMatrix4(t.matrixWorld);const c=n.ray.origin.distanceTo(ss);return c<n.near||c>n.far?null:{distance:c,point:ss.clone(),object:t}}function ls(t,e,n,r,i,s,o,a,l,c,h,u){qi.fromBufferAttribute(i,c),Xi.fromBufferAttribute(i,h),Yi.fromBufferAttribute(i,u);const p=t.morphTargetInfluences;if(e.morphTargets&&s&&p){Ki.set(0,0,0),$i.set(0,0,0),ts.set(0,0,0);for(let t=0,e=s.length;t<e;t++){const e=p[t],n=s[t];0!==e&&(Zi.fromBufferAttribute(n,c),Ji.fromBufferAttribute(n,h),Qi.fromBufferAttribute(n,u),o?(Ki.addScaledVector(Zi,e),$i.addScaledVector(Ji,e),ts.addScaledVector(Qi,e)):(Ki.addScaledVector(Zi.sub(qi),e),$i.addScaledVector(Ji.sub(Xi),e),ts.addScaledVector(Qi.sub(Yi),e)))}qi.add(Ki),Xi.add($i),Yi.add(ts)}t.isSkinnedMesh&&e.skinning&&(t.boneTransform(c,qi),t.boneTransform(h,Xi),t.boneTransform(u,Yi));const d=as(t,e,n,r,qi,Xi,Yi,is);if(d){a&&(es.fromBufferAttribute(a,c),ns.fromBufferAttribute(a,h),rs.fromBufferAttribute(a,u),d.uv=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On)),l&&(es.fromBufferAttribute(l,c),ns.fromBufferAttribute(l,h),rs.fromBufferAttribute(l,u),d.uv2=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On));const t={a:c,b:h,c:u,normal:new Yn,materialIndex:0};li.getNormal(qi,Xi,Yi,t.normal),d.face=t}return d}os.prototype=Object.assign(Object.create(Xr.prototype),{constructor:os,isMesh:!0,copy:function(t){return Xr.prototype.copy.call(this,t),void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this.material=t.material,this.geometry=t.geometry,this},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}},raycast:function(t,e){const n=this.geometry,r=this.material,i=this.matrixWorld;if(void 0===r)return;if(null===n.boundingSphere&&n.computeBoundingSphere(),ji.copy(n.boundingSphere),ji.applyMatrix4(i),!1===t.ray.intersectsSphere(ji))return;if(Vi.copy(i).invert(),Wi.copy(t.ray).applyMatrix4(Vi),null!==n.boundingBox&&!1===Wi.intersectsBox(n.boundingBox))return;let s;if(n.isBufferGeometry){const i=n.index,o=n.attributes.position,a=n.morphAttributes.position,l=n.morphTargetsRelative,c=n.attributes.uv,h=n.attributes.uv2,u=n.groups,p=n.drawRange;if(null!==i)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const d=u[n],m=r[d.materialIndex];for(let n=Math.max(d.start,p.start),r=Math.min(d.start+d.count,p.start+p.count);n<r;n+=3){const r=i.getX(n),u=i.getX(n+1),p=i.getX(n+2);(s=ls(this,m,t,Wi,o,a,l,c,h,r,u,p))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=d.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),u=Math.min(i.count,p.start+p.count);n<u;n+=3){const u=i.getX(n),p=i.getX(n+1),d=i.getX(n+2);(s=ls(this,r,t,Wi,o,a,l,c,h,u,p,d))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}else if(void 0!==o)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const i=u[n],d=r[i.materialIndex];for(let n=Math.max(i.start,p.start),r=Math.min(i.start+i.count,p.start+p.count);n<r;n+=3){(s=ls(this,d,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=i.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),i=Math.min(o.count,p.start+p.count);n<i;n+=3){(s=ls(this,r,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}}else n.isGeometry&&console.error("THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}});class cs extends ki{constructor(t=1,e=1,n=1,r=1,i=1,s=1){super(),this.type="BoxGeometry",this.parameters={width:t,height:e,depth:n,widthSegments:r,heightSegments:i,depthSegments:s};const o=this;r=Math.floor(r),i=Math.floor(i),s=Math.floor(s);const a=[],l=[],c=[],h=[];let u=0,p=0;function d(t,e,n,r,i,s,d,m,f,g,x){const v=s/f,y=d/g,_=s/2,b=d/2,w=m/2,M=f+1,S=g+1;let T=0,E=0;const A=new Yn;for(let o=0;o<S;o++){const s=o*y-b;for(let a=0;a<M;a++){const u=a*v-_;A[t]=u*r,A[e]=s*i,A[n]=w,l.push(A.x,A.y,A.z),A[t]=0,A[e]=0,A[n]=m>0?1:-1,c.push(A.x,A.y,A.z),h.push(a/f),h.push(1-o/g),T+=1}}for(let o=0;o<g;o++)for(let t=0;t<f;t++){const e=u+t+M*o,n=u+t+M*(o+1),r=u+(t+1)+M*(o+1),i=u+(t+1)+M*o;a.push(e,n,i),a.push(n,r,i),E+=6}o.addGroup(p,E,x),p+=E,u+=T}d("z","y","x",-1,-1,n,e,t,s,i,0),d("z","y","x",1,-1,n,e,-t,s,i,1),d("x","z","y",1,1,t,n,e,r,s,2),d("x","z","y",1,-1,t,n,-e,r,s,3),d("x","y","z",1,-1,t,e,n,r,i,4),d("x","y","z",-1,-1,t,e,-n,r,i,5),this.setIndex(a),this.setAttribute("position",new Ci(l,3)),this.setAttribute("normal",new Ci(c,3)),this.setAttribute("uv",new Ci(h,2))}}function hs(t){const e={};for(const n in t){e[n]={};for(const r in t[n]){const i=t[n][r];i&&(i.isColor||i.isMatrix3||i.isMatrix4||i.isVector2||i.isVector3||i.isVector4||i.isTexture||i.isQuaternion)?e[n][r]=i.clone():Array.isArray(i)?e[n][r]=i.slice():e[n][r]=i}}return e}function us(t){const e={};for(let n=0;n<t.length;n++){const r=hs(t[n]);for(const t in r)e[t]=r[t]}return e}exports.BoxGeometry=exports.BoxBufferGeometry=cs;const ps={clone:hs,merge:us};exports.UniformsUtils=ps;var ds="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}",ms="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";function fs(t){hi.call(this),this.type="ShaderMaterial",this.defines={},this.uniforms={},this.vertexShader=ds,this.fragmentShader=ms,this.linewidth=1,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.clipping=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.extensions={derivatives:!1,fragDepth:!1,drawBuffers:!1,shaderTextureLOD:!1},this.defaultAttributeValues={color:[1,1,1],uv:[0,0],uv2:[0,0]},this.index0AttributeName=void 0,this.uniformsNeedUpdate=!1,this.glslVersion=null,void 0!==t&&(void 0!==t.attributes&&console.error("THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead."),this.setValues(t))}function gs(){Xr.call(this),this.type="Camera",this.matrixWorldInverse=new wr,this.projectionMatrix=new wr,this.projectionMatrixInverse=new wr}function xs(t=50,e=1,n=.1,r=2e3){gs.call(this),this.type="PerspectiveCamera",this.fov=t,this.zoom=1,this.near=n,this.far=r,this.focus=10,this.aspect=e,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}fs.prototype=Object.create(hi.prototype),fs.prototype.constructor=fs,fs.prototype.isShaderMaterial=!0,fs.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=hs(t.uniforms),this.defines=Object.assign({},t.defines),this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.lights=t.lights,this.clipping=t.clipping,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.extensions=Object.assign({},t.extensions),this.glslVersion=t.glslVersion,this},fs.prototype.toJSON=function(t){const e=hi.prototype.toJSON.call(this,t);e.glslVersion=this.glslVersion,e.uniforms={};for(const r in this.uniforms){const n=this.uniforms[r].value;n&&n.isTexture?e.uniforms[r]={type:"t",value:n.toJSON(t).uuid}:n&&n.isColor?e.uniforms[r]={type:"c",value:n.getHex()}:n&&n.isVector2?e.uniforms[r]={type:"v2",value:n.toArray()}:n&&n.isVector3?e.uniforms[r]={type:"v3",value:n.toArray()}:n&&n.isVector4?e.uniforms[r]={type:"v4",value:n.toArray()}:n&&n.isMatrix3?e.uniforms[r]={type:"m3",value:n.toArray()}:n&&n.isMatrix4?e.uniforms[r]={type:"m4",value:n.toArray()}:e.uniforms[r]={value:n}}Object.keys(this.defines).length>0&&(e.defines=this.defines),e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader;const n={};for(const r in this.extensions)!0===this.extensions[r]&&(n[r]=!0);return Object.keys(n).length>0&&(e.extensions=n),e},gs.prototype=Object.assign(Object.create(Xr.prototype),{constructor:gs,isCamera:!0,copy:function(t,e){return Xr.prototype.copy.call(this,t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this.projectionMatrixInverse.copy(t.projectionMatrixInverse),this},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Camera: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(-e[8],-e[9],-e[10]).normalize()},updateMatrixWorld:function(t){Xr.prototype.updateMatrixWorld.call(this,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()},updateWorldMatrix:function(t,e){Xr.prototype.updateWorldMatrix.call(this,t,e),this.matrixWorldInverse.copy(this.matrixWorld).invert()},clone:function(){return(new this.constructor).copy(this)}}),xs.prototype=Object.assign(Object.create(gs.prototype),{constructor:xs,isPerspectiveCamera:!0,copy:function(t,e){return gs.prototype.copy.call(this,t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this},setFocalLength:function(t){const e=.5*this.getFilmHeight()/t;this.fov=2*Fn.RAD2DEG*Math.atan(e),this.updateProjectionMatrix()},getFocalLength:function(){const t=Math.tan(.5*Fn.DEG2RAD*this.fov);return.5*this.getFilmHeight()/t},getEffectiveFOV:function(){return 2*Fn.RAD2DEG*Math.atan(Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(t,e,n,r,i,s){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){const t=this.near;let e=t*Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom,n=2*e,r=this.aspect*n,i=-.5*r;const s=this.view;if(null!==this.view&&this.view.enabled){const t=s.fullWidth,o=s.fullHeight;i+=s.offsetX*r/t,e-=s.offsetY*n/o,r*=s.width/t,n*=s.height/o}const o=this.filmOffset;0!==o&&(i+=t*o/this.getFilmWidth()),this.projectionMatrix.makePerspective(i,i+r,e,e-n,t,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()},toJSON:function(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}});const vs=90,ys=1;class _s extends Xr{constructor(t,e,n){if(super(),this.type="CubeCamera",!0!==n.isWebGLCubeRenderTarget)return void console.error("THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.");this.renderTarget=n;const r=new xs(vs,ys,t,e);r.layers=this.layers,r.up.set(0,-1,0),r.lookAt(new Yn(1,0,0)),this.add(r);const i=new xs(vs,ys,t,e);i.layers=this.layers,i.up.set(0,-1,0),i.lookAt(new Yn(-1,0,0)),this.add(i);const s=new xs(vs,ys,t,e);s.layers=this.layers,s.up.set(0,0,1),s.lookAt(new Yn(0,1,0)),this.add(s);const o=new xs(vs,ys,t,e);o.layers=this.layers,o.up.set(0,0,-1),o.lookAt(new Yn(0,-1,0)),this.add(o);const a=new xs(vs,ys,t,e);a.layers=this.layers,a.up.set(0,-1,0),a.lookAt(new Yn(0,0,1)),this.add(a);const l=new xs(vs,ys,t,e);l.layers=this.layers,l.up.set(0,-1,0),l.lookAt(new Yn(0,0,-1)),this.add(l)}update(t,e){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget,[r,i,s,o,a,l]=this.children,c=t.xr.enabled,h=t.getRenderTarget();t.xr.enabled=!1;const u=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,t.setRenderTarget(n,0),t.render(e,r),t.setRenderTarget(n,1),t.render(e,i),t.setRenderTarget(n,2),t.render(e,s),t.setRenderTarget(n,3),t.render(e,o),t.setRenderTarget(n,4),t.render(e,a),n.texture.generateMipmaps=u,t.setRenderTarget(n,5),t.render(e,l),t.setRenderTarget(h),t.xr.enabled=c}}exports.CubeCamera=_s;class bs extends kn{constructor(t,e,n,r,i,s,o,a,l,c){super(t=void 0!==t?t:[],e=void 0!==e?e:nt,n,r,i,s,o=void 0!==o?o:Bt,a,l,c),this._needsFlipEnvMap=!0,this.flipY=!1}get images(){return this.image}set images(t){this.image=t}}exports.CubeTexture=bs,bs.prototype.isCubeTexture=!0;class ws extends jn{constructor(t,e,n){Number.isInteger(e)&&(console.warn("THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )"),e=n),super(t,t,e),e=e||{},this.texture=new bs(void 0,e.mapping,e.wrapS,e.wrapT,e.magFilter,e.minFilter,e.format,e.type,e.anisotropy,e.encoding),this.texture.generateMipmaps=void 0!==e.generateMipmaps&&e.generateMipmaps,this.texture.minFilter=void 0!==e.minFilter?e.minFilter:gt,this.texture._needsFlipEnvMap=!1}fromEquirectangularTexture(t,e){this.texture.type=e.type,this.texture.format=Nt,this.texture.encoding=e.encoding,this.texture.generateMipmaps=e.generateMipmaps,this.texture.minFilter=e.minFilter,this.texture.magFilter=e.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include <common>\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},r=new cs(5,5,5),i=new fs({name:"CubemapFromEquirect",uniforms:hs(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:p,blending:g});i.uniforms.tEquirect.value=e;const s=new os(r,i),o=e.minFilter;return e.minFilter===yt&&(e.minFilter=gt),new _s(1,10,this).update(t,s),e.minFilter=o,s.geometry.dispose(),s.material.dispose(),this}clear(t,e,n,r){const i=t.getRenderTarget();for(let s=0;s<6;s++)t.setRenderTarget(this,s),t.clear(e,n,r);t.setRenderTarget(i)}}exports.WebGLCubeRenderTarget=ws,ws.prototype.isWebGLCubeRenderTarget=!0;class Ms extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={data:t||null,width:e||1,height:n||1},this.magFilter=void 0!==l?l:ut,this.minFilter=void 0!==c?c:ut,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.needsUpdate=!0}}exports.DataTexture=Ms,Ms.prototype.isDataTexture=!0;const Ss=new dr,Ts=new Yn;class Es{constructor(t=new Qr,e=new Qr,n=new Qr,r=new Qr,i=new Qr,s=new Qr){this.planes=[t,e,n,r,i,s]}set(t,e,n,r,i,s){const o=this.planes;return o[0].copy(t),o[1].copy(e),o[2].copy(n),o[3].copy(r),o[4].copy(i),o[5].copy(s),this}copy(t){const e=this.planes;for(let n=0;n<6;n++)e[n].copy(t.planes[n]);return this}setFromProjectionMatrix(t){const e=this.planes,n=t.elements,r=n[0],i=n[1],s=n[2],o=n[3],a=n[4],l=n[5],c=n[6],h=n[7],u=n[8],p=n[9],d=n[10],m=n[11],f=n[12],g=n[13],x=n[14],v=n[15];return e[0].setComponents(o-r,h-a,m-u,v-f).normalize(),e[1].setComponents(o+r,h+a,m+u,v+f).normalize(),e[2].setComponents(o+i,h+l,m+p,v+g).normalize(),e[3].setComponents(o-i,h-l,m-p,v-g).normalize(),e[4].setComponents(o-s,h-c,m-d,v-x).normalize(),e[5].setComponents(o+s,h+c,m+d,v+x).normalize(),this}intersectsObject(t){const e=t.geometry;return null===e.boundingSphere&&e.computeBoundingSphere(),Ss.copy(e.boundingSphere).applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSprite(t){return Ss.center.set(0,0,0),Ss.radius=.7071067811865476,Ss.applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSphere(t){const e=this.planes,n=t.center,r=-t.radius;for(let i=0;i<6;i++){if(e[i].distanceToPoint(n)<r)return!1}return!0}intersectsBox(t){const e=this.planes;for(let n=0;n<6;n++){const r=e[n];if(Ts.x=r.normal.x>0?t.max.x:t.min.x,Ts.y=r.normal.y>0?t.max.y:t.min.y,Ts.z=r.normal.z>0?t.max.z:t.min.z,r.distanceToPoint(Ts)<0)return!1}return!0}containsPoint(t){const e=this.planes;for(let n=0;n<6;n++)if(e[n].distanceToPoint(t)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function As(){let t=null,e=!1,n=null,r=null;function i(e,s){n(e,s),r=t.requestAnimationFrame(i)}return{start:function(){!0!==e&&null!==n&&(r=t.requestAnimationFrame(i),e=!0)},stop:function(){t.cancelAnimationFrame(r),e=!1},setAnimationLoop:function(t){n=t},setContext:function(e){t=e}}}function Ls(t,e){const n=e.isWebGL2,r=new WeakMap;return{get:function(t){return t.isInterleavedBufferAttribute&&(t=t.data),r.get(t)},remove:function(e){e.isInterleavedBufferAttribute&&(e=e.data);const n=r.get(e);n&&(t.deleteBuffer(n.buffer),r.delete(e))},update:function(e,i){if(e.isGLBufferAttribute){const t=r.get(e);return void((!t||t.version<e.version)&&r.set(e,{buffer:e.buffer,type:e.type,bytesPerElement:e.elementSize,version:e.version}))}e.isInterleavedBufferAttribute&&(e=e.data);const s=r.get(e);void 0===s?r.set(e,function(e,r){const i=e.array,s=e.usage,o=t.createBuffer();t.bindBuffer(r,o),t.bufferData(r,i,s),e.onUploadCallback();let a=5126;return i instanceof Float32Array?a=5126:i instanceof Float64Array?console.warn("THREE.WebGLAttributes: Unsupported data buffer format: Float64Array."):i instanceof Uint16Array?e.isFloat16BufferAttribute?n?a=5131:console.warn("THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2."):a=5123:i instanceof Int16Array?a=5122:i instanceof Uint32Array?a=5125:i instanceof Int32Array?a=5124:i instanceof Int8Array?a=5120:i instanceof Uint8Array&&(a=5121),{buffer:o,type:a,bytesPerElement:i.BYTES_PER_ELEMENT,version:e.version}}(e,i)):s.version<e.version&&(function(e,r,i){const s=r.array,o=r.updateRange;t.bindBuffer(i,e),-1===o.count?t.bufferSubData(i,0,s):(n?t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s,o.offset,o.count):t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s.subarray(o.offset,o.offset+o.count)),o.count=-1)}(s.buffer,e,i),s.version=e.version)}}}exports.Frustum=Es;class Rs extends ki{constructor(t=1,e=1,n=1,r=1){super(),this.type="PlaneGeometry",this.parameters={width:t,height:e,widthSegments:n,heightSegments:r};const i=t/2,s=e/2,o=Math.floor(n),a=Math.floor(r),l=o+1,c=a+1,h=t/o,u=e/a,p=[],d=[],m=[],f=[];for(let g=0;g<c;g++){const t=g*u-s;for(let e=0;e<l;e++){const n=e*h-i;d.push(n,-t,0),m.push(0,0,1),f.push(e/o),f.push(1-g/a)}}for(let g=0;g<a;g++)for(let t=0;t<o;t++){const e=t+l*g,n=t+l*(g+1),r=t+1+l*(g+1),i=t+1+l*g;p.push(e,n,i),p.push(n,r,i)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.PlaneGeometry=exports.PlaneBufferGeometry=Rs;var Cs="#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif",Ps="#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",Ds="#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif",Is="#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif",Bs="#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",Ns="vec3 transformed = vec3( position );",Fs="vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif",Os="vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif",zs="#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif",Gs="#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",Hs="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",Us="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",ks="#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",Vs="#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif",Ws="#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif",js="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",qs="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",Xs="#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}",Ys="#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",Zs="vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",Js="#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",Qs="#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif",Ks="#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",$s="#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",to="gl_FragColor = linearToOutputTexel( gl_FragColor );",eo="\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}",no="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",ro="#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",io="#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",so="#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",oo="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",ao="#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif",lo="#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif",co="#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",ho="#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",uo="#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}",po="#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif",mo="#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",fo="vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif",go="uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif",xo="#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif",vo="ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",yo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)",_o="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",bo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)",wo="PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif",Mo="struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",So="\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",To="#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif",Eo="#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",Ao="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",Lo="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",Ro="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",Co="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",Po="#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif",Do="#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",Io="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",Bo="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",No="float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",Fo="#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",Oo="#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif",zo="#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif",Go="#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif",Ho="float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;",Uo="#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",ko="#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif",Vo="#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",Wo="#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif",jo="#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif",qo="vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}",Xo="#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",Yo="vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",Zo="#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",Jo="#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",Qo="float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",Ko="#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",$o="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",ta="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",ea="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif",na="float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",ra="#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",ia="#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif",sa="#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",oa="#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",aa="float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",la="#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",ca="#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",ha="#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",ua="#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif",pa="#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif",da="#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif",ma="#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif",fa="#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif",ga="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif",xa="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif",va="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif",ya="#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",_a="uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",ba="varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",wa="#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ma="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",Sa="#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",Ta="#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}",Ea="#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",Aa="#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}",La="uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ra="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}",Ca="uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Pa="uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",Da="uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ia="#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}",Ba="uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Na="#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Fa="#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Oa="#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}",za="#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ga="#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ha="#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ua="#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",ka="#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Va="#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Wa="#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}",ja="#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",qa="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Xa="uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}",Ya="uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Za="#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ja="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Qa="uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";const Ka={alphamap_fragment:Cs,alphamap_pars_fragment:Ps,alphatest_fragment:Ds,aomap_fragment:Is,aomap_pars_fragment:Bs,begin_vertex:Ns,beginnormal_vertex:Fs,bsdfs:Os,bumpmap_pars_fragment:zs,clipping_planes_fragment:Gs,clipping_planes_pars_fragment:Hs,clipping_planes_pars_vertex:Us,clipping_planes_vertex:ks,color_fragment:Vs,color_pars_fragment:Ws,color_pars_vertex:js,color_vertex:qs,common:Xs,cube_uv_reflection_fragment:Ys,defaultnormal_vertex:Zs,displacementmap_pars_vertex:Js,displacementmap_vertex:Qs,emissivemap_fragment:Ks,emissivemap_pars_fragment:$s,encodings_fragment:to,encodings_pars_fragment:eo,envmap_fragment:no,envmap_common_pars_fragment:ro,envmap_pars_fragment:io,envmap_pars_vertex:so,envmap_physical_pars_fragment:xo,envmap_vertex:oo,fog_vertex:ao,fog_pars_vertex:lo,fog_fragment:co,fog_pars_fragment:ho,gradientmap_pars_fragment:uo,lightmap_fragment:po,lightmap_pars_fragment:mo,lights_lambert_vertex:fo,lights_pars_begin:go,lights_toon_fragment:vo,lights_toon_pars_fragment:yo,lights_phong_fragment:_o,lights_phong_pars_fragment:bo,lights_physical_fragment:wo,lights_physical_pars_fragment:Mo,lights_fragment_begin:So,lights_fragment_maps:To,lights_fragment_end:Eo,logdepthbuf_fragment:Ao,logdepthbuf_pars_fragment:Lo,logdepthbuf_pars_vertex:Ro,logdepthbuf_vertex:Co,map_fragment:Po,map_pars_fragment:Do,map_particle_fragment:Io,map_particle_pars_fragment:Bo,metalnessmap_fragment:No,metalnessmap_pars_fragment:Fo,morphnormal_vertex:Oo,morphtarget_pars_vertex:zo,morphtarget_vertex:Go,normal_fragment_begin:Ho,normal_fragment_maps:Uo,normalmap_pars_fragment:ko,clearcoat_normal_fragment_begin:Vo,clearcoat_normal_fragment_maps:Wo,clearcoat_pars_fragment:jo,packing:qo,premultiplied_alpha_fragment:Xo,project_vertex:Yo,dithering_fragment:Zo,dithering_pars_fragment:Jo,roughnessmap_fragment:Qo,roughnessmap_pars_fragment:Ko,shadowmap_pars_fragment:$o,shadowmap_pars_vertex:ta,shadowmap_vertex:ea,shadowmask_pars_fragment:na,skinbase_vertex:ra,skinning_pars_vertex:ia,skinning_vertex:sa,skinnormal_vertex:oa,specularmap_fragment:aa,specularmap_pars_fragment:la,tonemapping_fragment:ca,tonemapping_pars_fragment:ha,transmissionmap_fragment:ua,transmissionmap_pars_fragment:pa,uv_pars_fragment:da,uv_pars_vertex:ma,uv_vertex:fa,uv2_pars_fragment:ga,uv2_pars_vertex:xa,uv2_vertex:va,worldpos_vertex:ya,background_frag:_a,background_vert:ba,cube_frag:wa,cube_vert:Ma,depth_frag:Sa,depth_vert:Ta,distanceRGBA_frag:Ea,distanceRGBA_vert:Aa,equirect_frag:La,equirect_vert:Ra,linedashed_frag:Ca,linedashed_vert:Pa,meshbasic_frag:Da,meshbasic_vert:Ia,meshlambert_frag:Ba,meshlambert_vert:Na,meshmatcap_frag:Fa,meshmatcap_vert:Oa,meshtoon_frag:za,meshtoon_vert:Ga,meshphong_frag:Ha,meshphong_vert:Ua,meshphysical_frag:ka,meshphysical_vert:Va,normal_frag:Wa,normal_vert:ja,points_frag:qa,points_vert:Xa,shadow_frag:Ya,shadow_vert:Za,sprite_frag:Ja,sprite_vert:Qa};exports.ShaderChunk=Ka;const $a={common:{diffuse:{value:new xi(15658734)},opacity:{value:1},map:{value:null},uvTransform:{value:new zn},uv2Transform:{value:new zn},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98},maxMipLevel:{value:0}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new On(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new xi(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new xi(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}},sprite:{diffuse:{value:new xi(15658734)},opacity:{value:1},center:{value:new On(.5,.5)},rotation:{value:0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}}};exports.UniformsLib=$a;const tl={basic:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.fog]),vertexShader:Ka.meshbasic_vert,fragmentShader:Ka.meshbasic_frag},lambert:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshlambert_vert,fragmentShader:Ka.meshlambert_frag},phong:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},specular:{value:new xi(1118481)},shininess:{value:30}}]),vertexShader:Ka.meshphong_vert,fragmentShader:Ka.meshphong_frag},standard:{uniforms:us([$a.common,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.roughnessmap,$a.metalnessmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag},toon:{uniforms:us([$a.common,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.gradientmap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshtoon_vert,fragmentShader:Ka.meshtoon_frag},matcap:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,{matcap:{value:null}}]),vertexShader:Ka.meshmatcap_vert,fragmentShader:Ka.meshmatcap_frag},points:{uniforms:us([$a.points,$a.fog]),vertexShader:Ka.points_vert,fragmentShader:Ka.points_frag},dashed:{uniforms:us([$a.common,$a.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:Ka.linedashed_vert,fragmentShader:Ka.linedashed_frag},depth:{uniforms:us([$a.common,$a.displacementmap]),vertexShader:Ka.depth_vert,fragmentShader:Ka.depth_frag},normal:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,{opacity:{value:1}}]),vertexShader:Ka.normal_vert,fragmentShader:Ka.normal_frag},sprite:{uniforms:us([$a.sprite,$a.fog]),vertexShader:Ka.sprite_vert,fragmentShader:Ka.sprite_frag},background:{uniforms:{uvTransform:{value:new zn},t2D:{value:null}},vertexShader:Ka.background_vert,fragmentShader:Ka.background_frag},cube:{uniforms:us([$a.envmap,{opacity:{value:1}}]),vertexShader:Ka.cube_vert,fragmentShader:Ka.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:Ka.equirect_vert,fragmentShader:Ka.equirect_frag},distanceRGBA:{uniforms:us([$a.common,$a.displacementmap,{referencePosition:{value:new Yn},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:Ka.distanceRGBA_vert,fragmentShader:Ka.distanceRGBA_frag},shadow:{uniforms:us([$a.lights,$a.fog,{color:{value:new xi(0)},opacity:{value:1}}]),vertexShader:Ka.shadow_vert,fragmentShader:Ka.shadow_frag}};function el(t,e,n,r,i){const s=new xi(0);let o,a,l=0,c=null,h=0,d=null;function m(t,e){n.buffers.color.setClear(t.r,t.g,t.b,e,i)}return{getClearColor:function(){return s},setClearColor:function(t,e=1){s.set(t),m(s,l=e)},getClearAlpha:function(){return l},setClearAlpha:function(t){m(s,l=t)},render:function(n,i,f,g){let x=!0===i.isScene?i.background:null;x&&x.isTexture&&(x=e.get(x));const v=t.xr,y=v.getSession&&v.getSession();y&&"additive"===y.environmentBlendMode&&(x=null),null===x?m(s,l):x&&x.isColor&&(m(x,1),g=!0),(t.autoClear||g)&&t.clear(t.autoClearColor,t.autoClearDepth,t.autoClearStencil),x&&(x.isCubeTexture||x.isWebGLCubeRenderTarget||x.mapping===ot)?(void 0===a&&((a=new os(new cs(1,1,1),new fs({name:"BackgroundCubeMaterial",uniforms:hs(tl.cube.uniforms),vertexShader:tl.cube.vertexShader,fragmentShader:tl.cube.fragmentShader,side:p,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),a.geometry.deleteAttribute("uv"),a.onBeforeRender=function(t,e,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(a.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(a)),x.isWebGLCubeRenderTarget&&(x=x.texture),a.material.uniforms.envMap.value=x,a.material.uniforms.flipEnvMap.value=x.isCubeTexture&&x._needsFlipEnvMap?-1:1,c===x&&h===x.version&&d===t.toneMapping||(a.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(a,a.geometry,a.material,0,0,null)):x&&x.isTexture&&(void 0===o&&((o=new os(new Rs(2,2),new fs({name:"BackgroundMaterial",uniforms:hs(tl.background.uniforms),vertexShader:tl.background.vertexShader,fragmentShader:tl.background.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),Object.defineProperty(o.material,"map",{get:function(){return this.uniforms.t2D.value}}),r.update(o)),o.material.uniforms.t2D.value=x,!0===x.matrixAutoUpdate&&x.updateMatrix(),o.material.uniforms.uvTransform.value.copy(x.matrix),c===x&&h===x.version&&d===t.toneMapping||(o.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(o,o.geometry,o.material,0,0,null))}}}function nl(t,e,n,r){const i=t.getParameter(34921),s=r.isWebGL2?null:e.get("OES_vertex_array_object"),o=r.isWebGL2||null!==s,a={},l=p(null);let c=l;function h(e){return r.isWebGL2?t.bindVertexArray(e):s.bindVertexArrayOES(e)}function u(e){return r.isWebGL2?t.deleteVertexArray(e):s.deleteVertexArrayOES(e)}function p(t){const e=[],n=[],r=[];for(let s=0;s<i;s++)e[s]=0,n[s]=0,r[s]=0;return{geometry:null,program:null,wireframe:!1,newAttributes:e,enabledAttributes:n,attributeDivisors:r,object:t,attributes:{},index:null}}function d(){const t=c.newAttributes;for(let e=0,n=t.length;e<n;e++)t[e]=0}function m(t){f(t,0)}function f(n,i){const s=c.newAttributes,o=c.enabledAttributes,a=c.attributeDivisors;if(s[n]=1,0===o[n]&&(t.enableVertexAttribArray(n),o[n]=1),a[n]!==i){(r.isWebGL2?t:e.get("ANGLE_instanced_arrays"))[r.isWebGL2?"vertexAttribDivisor":"vertexAttribDivisorANGLE"](n,i),a[n]=i}}function g(){const e=c.newAttributes,n=c.enabledAttributes;for(let r=0,i=n.length;r<i;r++)n[r]!==e[r]&&(t.disableVertexAttribArray(r),n[r]=0)}function x(e,n,i,s,o,a){!0!==r.isWebGL2||5124!==i&&5125!==i?t.vertexAttribPointer(e,n,i,s,o,a):t.vertexAttribIPointer(e,n,i,o,a)}function v(){y(),c!==l&&h((c=l).object)}function y(){l.geometry=null,l.program=null,l.wireframe=!1}return{setup:function(i,l,u,v,y){let _=!1;if(o){const e=function(e,n,i){const o=!0===i.wireframe;let l=a[e.id];void 0===l&&(l={},a[e.id]=l);let c=l[n.id];void 0===c&&(c={},l[n.id]=c);let h=c[o];return void 0===h&&(h=p(r.isWebGL2?t.createVertexArray():s.createVertexArrayOES()),c[o]=h),h}(v,u,l);c!==e&&h((c=e).object),(_=function(t,e){const n=c.attributes,r=t.attributes;let i=0;for(const s in r){const t=n[s],e=r[s];if(void 0===t)return!0;if(t.attribute!==e)return!0;if(t.data!==e.data)return!0;i++}return c.attributesNum!==i||c.index!==e}(v,y))&&function(t,e){const n={},r=t.attributes;let i=0;for(const s in r){const t=r[s],e={};e.attribute=t,t.data&&(e.data=t.data),n[s]=e,i++}c.attributes=n,c.attributesNum=i,c.index=e}(v,y)}else{const t=!0===l.wireframe;c.geometry===v.id&&c.program===u.id&&c.wireframe===t||(c.geometry=v.id,c.program=u.id,c.wireframe=t,_=!0)}!0===i.isInstancedMesh&&(_=!0),null!==y&&n.update(y,34963),_&&(function(i,s,o,a){if(!1===r.isWebGL2&&(i.isInstancedMesh||a.isInstancedBufferGeometry)&&null===e.get("ANGLE_instanced_arrays"))return;d();const l=a.attributes,c=o.getAttributes(),h=s.defaultAttributeValues;for(const e in c){const r=c[e];if(r>=0){const s=l[e];if(void 0!==s){const e=s.normalized,i=s.itemSize,o=n.get(s);if(void 0===o)continue;const l=o.buffer,c=o.type,h=o.bytesPerElement;if(s.isInterleavedBufferAttribute){const n=s.data,o=n.stride,u=s.offset;n&&n.isInstancedInterleavedBuffer?(f(r,n.meshPerAttribute),void 0===a._maxInstanceCount&&(a._maxInstanceCount=n.meshPerAttribute*n.count)):m(r),t.bindBuffer(34962,l),x(r,i,c,e,o*h,u*h)}else s.isInstancedBufferAttribute?(f(r,s.meshPerAttribute),void 0===a._maxInstanceCount&&(a._maxInstanceCount=s.meshPerAttribute*s.count)):m(r),t.bindBuffer(34962,l),x(r,i,c,e,0,0)}else if("instanceMatrix"===e){const e=n.get(i.instanceMatrix);if(void 0===e)continue;const s=e.buffer,o=e.type;f(r+0,1),f(r+1,1),f(r+2,1),f(r+3,1),t.bindBuffer(34962,s),t.vertexAttribPointer(r+0,4,o,!1,64,0),t.vertexAttribPointer(r+1,4,o,!1,64,16),t.vertexAttribPointer(r+2,4,o,!1,64,32),t.vertexAttribPointer(r+3,4,o,!1,64,48)}else if("instanceColor"===e){const e=n.get(i.instanceColor);if(void 0===e)continue;const s=e.buffer,o=e.type;f(r,1),t.bindBuffer(34962,s),t.vertexAttribPointer(r,3,o,!1,12,0)}else if(void 0!==h){const n=h[e];if(void 0!==n)switch(n.length){case 2:t.vertexAttrib2fv(r,n);break;case 3:t.vertexAttrib3fv(r,n);break;case 4:t.vertexAttrib4fv(r,n);break;default:t.vertexAttrib1fv(r,n)}}}}g()}(i,l,u,v),null!==y&&t.bindBuffer(34963,n.get(y).buffer))},reset:v,resetDefaultState:y,dispose:function(){v();for(const t in a){const e=a[t];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete a[t]}},releaseStatesOfGeometry:function(t){if(void 0===a[t.id])return;const e=a[t.id];for(const n in e){const t=e[n];for(const e in t)u(t[e].object),delete t[e];delete e[n]}delete a[t.id]},releaseStatesOfProgram:function(t){for(const e in a){const n=a[e];if(void 0===n[t.id])continue;const r=n[t.id];for(const t in r)u(r[t].object),delete r[t];delete n[t.id]}},initAttributes:d,enableAttribute:m,disableUnusedAttributes:g}}function rl(t,e,n,r){const i=r.isWebGL2;let s;this.setMode=function(t){s=t},this.render=function(e,r){t.drawArrays(s,e,r),n.update(r,s,1)},this.renderInstances=function(r,o,a){if(0===a)return;let l,c;if(i)l=t,c="drawArraysInstanced";else if(c="drawArraysInstancedANGLE",null===(l=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");l[c](s,r,o,a),n.update(o,s,a)}}function il(t,e,n){let r;function i(e){if("highp"===e){if(t.getShaderPrecisionFormat(35633,36338).precision>0&&t.getShaderPrecisionFormat(35632,36338).precision>0)return"highp";e="mediump"}return"mediump"===e&&t.getShaderPrecisionFormat(35633,36337).precision>0&&t.getShaderPrecisionFormat(35632,36337).precision>0?"mediump":"lowp"}const s="undefined"!=typeof WebGL2RenderingContext&&t instanceof WebGL2RenderingContext||"undefined"!=typeof WebGL2ComputeRenderingContext&&t instanceof WebGL2ComputeRenderingContext;let o=void 0!==n.precision?n.precision:"highp";const a=i(o);a!==o&&(console.warn("THREE.WebGLRenderer:",o,"not supported, using",a,"instead."),o=a);const l=!0===n.logarithmicDepthBuffer,c=t.getParameter(34930),h=t.getParameter(35660),u=t.getParameter(3379),p=t.getParameter(34076),d=t.getParameter(34921),m=t.getParameter(36347),f=t.getParameter(36348),g=t.getParameter(36349),x=h>0,v=s||e.has("OES_texture_float");return{isWebGL2:s,getMaxAnisotropy:function(){if(void 0!==r)return r;if(!0===e.has("EXT_texture_filter_anisotropic")){const n=e.get("EXT_texture_filter_anisotropic");r=t.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else r=0;return r},getMaxPrecision:i,precision:o,logarithmicDepthBuffer:l,maxTextures:c,maxVertexTextures:h,maxTextureSize:u,maxCubemapSize:p,maxAttributes:d,maxVertexUniforms:m,maxVaryings:f,maxFragmentUniforms:g,vertexTextures:x,floatFragmentTextures:v,floatVertexTextures:x&&v,maxSamples:s?t.getParameter(36183):0}}function sl(t){const e=this;let n=null,r=0,i=!1,s=!1;const o=new Qr,a=new zn,l={value:null,needsUpdate:!1};function c(){l.value!==n&&(l.value=n,l.needsUpdate=r>0),e.numPlanes=r,e.numIntersection=0}function h(t,n,r,i){const s=null!==t?t.length:0;let c=null;if(0!==s){if(c=l.value,!0!==i||null===c){const e=r+4*s,i=n.matrixWorldInverse;a.getNormalMatrix(i),(null===c||c.length<e)&&(c=new Float32Array(e));for(let n=0,l=r;n!==s;++n,l+=4)o.copy(t[n]).applyMatrix4(i,a),o.normal.toArray(c,l),c[l+3]=o.constant}l.value=c,l.needsUpdate=!0}return e.numPlanes=s,e.numIntersection=0,c}this.uniform=l,this.numPlanes=0,this.numIntersection=0,this.init=function(t,e,s){const o=0!==t.length||e||0!==r||i;return i=e,n=h(t,s,0),r=t.length,o},this.beginShadows=function(){s=!0,h(null)},this.endShadows=function(){s=!1,c()},this.setState=function(e,o,a){const u=e.clippingPlanes,p=e.clipIntersection,d=e.clipShadows,m=t.get(e);if(!i||null===u||0===u.length||s&&!d)s?h(null):c();else{const t=s?0:r,e=4*t;let i=m.clippingState||null;l.value=i,i=h(u,o,e,a);for(let r=0;r!==e;++r)i[r]=n[r];m.clippingState=i,this.numIntersection=p?this.numPlanes:0,this.numPlanes+=t}}}function ol(t){let e=new WeakMap;function n(t,e){return e===it?t.mapping=nt:e===st&&(t.mapping=rt),t}function r(t){const n=t.target;n.removeEventListener("dispose",r);const i=e.get(n);void 0!==i&&(e.delete(n),i.dispose())}return{get:function(i){if(i&&i.isTexture){const s=i.mapping;if(s===it||s===st){if(e.has(i))return n(e.get(i).texture,i.mapping);{const s=i.image;if(s&&s.height>0){const o=t.getRenderTarget(),a=new ws(s.height/2);return a.fromEquirectangularTexture(t,i),e.set(i,a),t.setRenderTarget(o),i.addEventListener("dispose",r),n(a.texture,i.mapping)}return null}}}return i},dispose:function(){e=new WeakMap}}}function al(t){const e={};function n(n){if(void 0!==e[n])return e[n];let r;switch(n){case"WEBGL_depth_texture":r=t.getExtension("WEBGL_depth_texture")||t.getExtension("MOZ_WEBGL_depth_texture")||t.getExtension("WEBKIT_WEBGL_depth_texture");break;case"EXT_texture_filter_anisotropic":r=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case"WEBGL_compressed_texture_s3tc":r=t.getExtension("WEBGL_compressed_texture_s3tc")||t.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case"WEBGL_compressed_texture_pvrtc":r=t.getExtension("WEBGL_compressed_texture_pvrtc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:r=t.getExtension(n)}return e[n]=r,r}return{has:function(t){return null!==n(t)},init:function(t){t.isWebGL2?n("EXT_color_buffer_float"):(n("WEBGL_depth_texture"),n("OES_texture_float"),n("OES_texture_half_float"),n("OES_texture_half_float_linear"),n("OES_standard_derivatives"),n("OES_element_index_uint"),n("OES_vertex_array_object"),n("ANGLE_instanced_arrays")),n("OES_texture_float_linear"),n("EXT_color_buffer_half_float")},get:function(t){const e=n(t);return null===e&&console.warn("THREE.WebGLRenderer: "+t+" extension not supported."),e}}}function ll(t,e,n,r){const i={},s=new WeakMap;function o(t){const a=t.target;null!==a.index&&e.remove(a.index);for(const n in a.attributes)e.remove(a.attributes[n]);a.removeEventListener("dispose",o),delete i[a.id];const l=s.get(a);l&&(e.remove(l),s.delete(a)),r.releaseStatesOfGeometry(a),!0===a.isInstancedBufferGeometry&&delete a._maxInstanceCount,n.memory.geometries--}function a(t){const n=[],r=t.index,i=t.attributes.position;let o=0;if(null!==r){const t=r.array;o=r.version;for(let e=0,r=t.length;e<r;e+=3){const r=t[e+0],i=t[e+1],s=t[e+2];n.push(r,i,i,s,s,r)}}else{const t=i.array;o=i.version;for(let e=0,r=t.length/3-1;e<r;e+=3){const t=e+0,r=e+1,i=e+2;n.push(t,r,r,i,i,t)}}const a=new(Di(n)>65535?Li:Ei)(n,1);a.version=o;const l=s.get(t);l&&e.remove(l),s.set(t,a)}return{get:function(t,e){return!0===i[e.id]?e:(e.addEventListener("dispose",o),i[e.id]=!0,n.memory.geometries++,e)},update:function(t){const n=t.attributes;for(const i in n)e.update(n[i],34962);const r=t.morphAttributes;for(const i in r){const t=r[i];for(let n=0,r=t.length;n<r;n++)e.update(t[n],34962)}},getWireframeAttribute:function(t){const e=s.get(t);if(e){const n=t.index;null!==n&&e.version<n.version&&a(t)}else a(t);return s.get(t)}}}function cl(t,e,n,r){const i=r.isWebGL2;let s,o,a;this.setMode=function(t){s=t},this.setIndex=function(t){o=t.type,a=t.bytesPerElement},this.render=function(e,r){t.drawElements(s,r,o,e*a),n.update(r,s,1)},this.renderInstances=function(r,l,c){if(0===c)return;let h,u;if(i)h=t,u="drawElementsInstanced";else if(u="drawElementsInstancedANGLE",null===(h=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");h[u](s,l,o,r*a,c),n.update(l,s,c)}}function hl(t){const e={frame:0,calls:0,triangles:0,points:0,lines:0};return{memory:{geometries:0,textures:0},render:e,programs:null,autoReset:!0,reset:function(){e.frame++,e.calls=0,e.triangles=0,e.points=0,e.lines=0},update:function(t,n,r){switch(e.calls++,n){case 4:e.triangles+=r*(t/3);break;case 1:e.lines+=r*(t/2);break;case 3:e.lines+=r*(t-1);break;case 2:e.lines+=r*t;break;case 0:e.points+=r*t;break;default:console.error("THREE.WebGLInfo: Unknown draw mode:",n)}}}}function ul(t,e){return t[0]-e[0]}function pl(t,e){return Math.abs(e[1])-Math.abs(t[1])}function dl(t){const e={},n=new Float32Array(8),r=[];for(let i=0;i<8;i++)r[i]=[i,0];return{update:function(i,s,o,a){const l=i.morphTargetInfluences,c=void 0===l?0:l.length;let h=e[s.id];if(void 0===h){h=[];for(let t=0;t<c;t++)h[t]=[t,0];e[s.id]=h}for(let t=0;t<c;t++){const e=h[t];e[0]=t,e[1]=l[t]}h.sort(pl);for(let t=0;t<8;t++)t<c&&h[t][1]?(r[t][0]=h[t][0],r[t][1]=h[t][1]):(r[t][0]=Number.MAX_SAFE_INTEGER,r[t][1]=0);r.sort(ul);const u=o.morphTargets&&s.morphAttributes.position,p=o.morphNormals&&s.morphAttributes.normal;let d=0;for(let t=0;t<8;t++){const e=r[t],i=e[0],o=e[1];i!==Number.MAX_SAFE_INTEGER&&o?(u&&s.getAttribute("morphTarget"+t)!==u[i]&&s.setAttribute("morphTarget"+t,u[i]),p&&s.getAttribute("morphNormal"+t)!==p[i]&&s.setAttribute("morphNormal"+t,p[i]),n[t]=o,d+=o):(u&&!0===s.hasAttribute("morphTarget"+t)&&s.deleteAttribute("morphTarget"+t),p&&!0===s.hasAttribute("morphNormal"+t)&&s.deleteAttribute("morphNormal"+t),n[t]=0)}const m=s.morphTargetsRelative?1:1-d;a.getUniforms().setValue(t,"morphTargetBaseInfluence",m),a.getUniforms().setValue(t,"morphTargetInfluences",n)}}}function ml(t,e,n,r){let i=new WeakMap;function s(t){const e=t.target;e.removeEventListener("dispose",s),n.remove(e.instanceMatrix),null!==e.instanceColor&&n.remove(e.instanceColor)}return{update:function(t){const o=r.render.frame,a=t.geometry,l=e.get(t,a);return i.get(l)!==o&&(e.update(l),i.set(l,o)),t.isInstancedMesh&&(!1===t.hasEventListener("dispose",s)&&t.addEventListener("dispose",s),n.update(t.instanceMatrix,34962),null!==t.instanceColor&&n.update(t.instanceColor,34962)),l},dispose:function(){i=new WeakMap}}}exports.ShaderLib=tl,tl.physical={uniforms:us([tl.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatNormalScale:{value:new On(1,1)},clearcoatNormalMap:{value:null},sheen:{value:new xi(0)},transmission:{value:0},transmissionMap:{value:null}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag};class fl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture2DArray=fl,fl.prototype.isDataTexture2DArray=!0;class gl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture3D=gl,gl.prototype.isDataTexture3D=!0;const xl=new kn,vl=new fl,yl=new gl,_l=new bs,bl=[],wl=[],Ml=new Float32Array(16),Sl=new Float32Array(9),Tl=new Float32Array(4);function El(t,e,n){const r=t[0];if(r<=0||r>0)return t;const i=e*n;let s=bl[i];if(void 0===s&&(s=new Float32Array(i),bl[i]=s),0!==e){r.toArray(s,0);for(let r=1,i=0;r!==e;++r)i+=n,t[r].toArray(s,i)}return s}function Al(t,e){if(t.length!==e.length)return!1;for(let n=0,r=t.length;n<r;n++)if(t[n]!==e[n])return!1;return!0}function Ll(t,e){for(let n=0,r=e.length;n<r;n++)t[n]=e[n]}function Rl(t,e){let n=wl[e];void 0===n&&(n=new Int32Array(e),wl[e]=n);for(let r=0;r!==e;++r)n[r]=t.allocateTextureUnit();return n}function Cl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1f(this.addr,e),n[0]=e)}function Pl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y||(t.uniform2f(this.addr,e.x,e.y),n[0]=e.x,n[1]=e.y);else{if(Al(n,e))return;t.uniform2fv(this.addr,e),Ll(n,e)}}function Dl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z||(t.uniform3f(this.addr,e.x,e.y,e.z),n[0]=e.x,n[1]=e.y,n[2]=e.z);else if(void 0!==e.r)n[0]===e.r&&n[1]===e.g&&n[2]===e.b||(t.uniform3f(this.addr,e.r,e.g,e.b),n[0]=e.r,n[1]=e.g,n[2]=e.b);else{if(Al(n,e))return;t.uniform3fv(this.addr,e),Ll(n,e)}}function Il(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z&&n[3]===e.w||(t.uniform4f(this.addr,e.x,e.y,e.z,e.w),n[0]=e.x,n[1]=e.y,n[2]=e.z,n[3]=e.w);else{if(Al(n,e))return;t.uniform4fv(this.addr,e),Ll(n,e)}}function Bl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix2fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Tl.set(r),t.uniformMatrix2fv(this.addr,!1,Tl),Ll(n,r)}}function Nl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix3fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Sl.set(r),t.uniformMatrix3fv(this.addr,!1,Sl),Ll(n,r)}}function Fl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix4fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Ml.set(r),t.uniformMatrix4fv(this.addr,!1,Ml),Ll(n,r)}}function Ol(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTexture2D(e||xl,i)}function zl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture2DArray(e||vl,i)}function Gl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture3D(e||yl,i)}function Hl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTextureCube(e||_l,i)}function Ul(t,e){const n=this.cache;n[0]!==e&&(t.uniform1i(this.addr,e),n[0]=e)}function kl(t,e){const n=this.cache;Al(n,e)||(t.uniform2iv(this.addr,e),Ll(n,e))}function Vl(t,e){const n=this.cache;Al(n,e)||(t.uniform3iv(this.addr,e),Ll(n,e))}function Wl(t,e){const n=this.cache;Al(n,e)||(t.uniform4iv(this.addr,e),Ll(n,e))}function jl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1ui(this.addr,e),n[0]=e)}function ql(t){switch(t){case 5126:return Cl;case 35664:return Pl;case 35665:return Dl;case 35666:return Il;case 35674:return Bl;case 35675:return Nl;case 35676:return Fl;case 5124:case 35670:return Ul;case 35667:case 35671:return kl;case 35668:case 35672:return Vl;case 35669:case 35673:return Wl;case 5125:return jl;case 35678:case 36198:case 36298:case 36306:case 35682:return Ol;case 35679:case 36299:case 36307:return Gl;case 35680:case 36300:case 36308:case 36293:return Hl;case 36289:case 36303:case 36311:case 36292:return zl}}function Xl(t,e){t.uniform1fv(this.addr,e)}function Yl(t,e){t.uniform1iv(this.addr,e)}function Zl(t,e){t.uniform2iv(this.addr,e)}function Jl(t,e){t.uniform3iv(this.addr,e)}function Ql(t,e){t.uniform4iv(this.addr,e)}function Kl(t,e){const n=El(e,this.size,2);t.uniform2fv(this.addr,n)}function $l(t,e){const n=El(e,this.size,3);t.uniform3fv(this.addr,n)}function tc(t,e){const n=El(e,this.size,4);t.uniform4fv(this.addr,n)}function ec(t,e){const n=El(e,this.size,4);t.uniformMatrix2fv(this.addr,!1,n)}function nc(t,e){const n=El(e,this.size,9);t.uniformMatrix3fv(this.addr,!1,n)}function rc(t,e){const n=El(e,this.size,16);t.uniformMatrix4fv(this.addr,!1,n)}function ic(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTexture2D(e[s]||xl,i[s])}function sc(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTextureCube(e[s]||_l,i[s])}function oc(t){switch(t){case 5126:return Xl;case 35664:return Kl;case 35665:return $l;case 35666:return tc;case 35674:return ec;case 35675:return nc;case 35676:return rc;case 5124:case 35670:return Yl;case 35667:case 35671:return Zl;case 35668:case 35672:return Jl;case 35669:case 35673:return Ql;case 35678:case 36198:case 36298:case 36306:case 35682:return ic;case 35680:case 36300:case 36308:case 36293:return sc}}function ac(t,e,n){this.id=t,this.addr=n,this.cache=[],this.setValue=ql(e.type)}function lc(t,e,n){this.id=t,this.addr=n,this.cache=[],this.size=e.size,this.setValue=oc(e.type)}function cc(t){this.id=t,this.seq=[],this.map={}}lc.prototype.updateCache=function(t){const e=this.cache;t instanceof Float32Array&&e.length!==t.length&&(this.cache=new Float32Array(t.length)),Ll(e,t)},cc.prototype.setValue=function(t,e,n){const r=this.seq;for(let i=0,s=r.length;i!==s;++i){const s=r[i];s.setValue(t,e[s.id],n)}};const hc=/(\w+)(\])?(\[|\.)?/g;function uc(t,e){t.seq.push(e),t.map[e.id]=e}function pc(t,e,n){const r=t.name,i=r.length;for(hc.lastIndex=0;;){const s=hc.exec(r),o=hc.lastIndex;let a=s[1];const l="]"===s[2],c=s[3];if(l&&(a|=0),void 0===c||"["===c&&o+2===i){uc(n,void 0===c?new ac(a,t,e):new lc(a,t,e));break}{let t=n.map[a];void 0===t&&uc(n,t=new cc(a)),n=t}}}function dc(t,e){this.seq=[],this.map={};const n=t.getProgramParameter(e,35718);for(let r=0;r<n;++r){const n=t.getActiveUniform(e,r);pc(n,t.getUniformLocation(e,n.name),this)}}function mc(t,e,n){const r=t.createShader(e);return t.shaderSource(r,n),t.compileShader(r),r}dc.prototype.setValue=function(t,e,n,r){const i=this.map[e];void 0!==i&&i.setValue(t,n,r)},dc.prototype.setOptional=function(t,e,n){const r=e[n];void 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DITHERING":"",Ka.encodings_pars_fragment,n.map?yc("mapTexelToLinear",n.mapEncoding):"",n.matcap?yc("matcapTexelToLinear",n.matcapEncoding):"",n.envMap?yc("envMapTexelToLinear",n.envMapEncoding):"",n.emissiveMap?yc("emissiveMapTexelToLinear",n.emissiveMapEncoding):"",n.lightMap?yc("lightMapTexelToLinear",n.lightMapEncoding):"",_c("linearToOutputTexel",n.outputEncoding),n.depthPacking?"#define DEPTH_PACKING "+n.depthPacking:"","\n"].filter(Tc).join("\n")),o=Ac(o=Ec(o=Rc(o),n),n),a=Ac(a=Ec(a=Rc(a),n),n),o=Ic(o),a=Ic(a),n.isWebGL2&&!0!==n.isRawShaderMaterial&&(v="#version 300 es\n",g=["#define attribute in","#define varying out","#define texture2D texture"].join("\n")+"\n"+g,x=["#define varying in",n.glslVersion===Dn?"":"out highp vec4 pc_fragColor;",n.glslVersion===Dn?"":"#define gl_FragColor pc_fragColor","#define gl_FragDepthEXT gl_FragDepth","#define texture2D texture","#define textureCube texture","#define texture2DProj textureProj","#define texture2DLodEXT textureLod","#define texture2DProjLodEXT textureProjLod","#define textureCubeLodEXT textureLod","#define texture2DGradEXT textureGrad","#define texture2DProjGradEXT textureProjGrad","#define textureCubeGradEXT textureGrad"].join("\n")+"\n"+x);const y=v+x+a,_=mc(i,35633,v+g+o),b=mc(i,35632,y);if(i.attachShader(f,_),i.attachShader(f,b),void 0!==n.index0AttributeName?i.bindAttribLocation(f,0,n.index0AttributeName):!0===n.morphTargets&&i.bindAttribLocation(f,0,"position"),i.linkProgram(f),t.debug.checkShaderErrors){const t=i.getProgramInfoLog(f).trim(),e=i.getShaderInfoLog(_).trim(),n=i.getShaderInfoLog(b).trim();let r=!0,s=!0;if(!1===i.getProgramParameter(f,35714)){r=!1;const e=vc(i,_,"vertex"),n=vc(i,b,"fragment");console.error("THREE.WebGLProgram: shader error: ",i.getError(),"35715",i.getProgramParameter(f,35715),"gl.getProgramInfoLog",t,e,n)}else""!==t?console.warn("THREE.WebGLProgram: 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f={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",MeshPhongMaterial:"phong",MeshToonMaterial:"toon",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",MeshMatcapMaterial:"matcap",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow",SpriteMaterial:"sprite"},g=["precision","isWebGL2","supportsVertexTextures","outputEncoding","instancing","instancingColor","map","mapEncoding","matcap","matcapEncoding","envMap","envMapMode","envMapEncoding","envMapCubeUV","lightMap","lightMapEncoding","aoMap","emissiveMap","emissiveMapEncoding","bumpMap","normalMap","objectSpaceNormalMap","tangentSpaceNormalMap","clearcoatMap","clearcoatRoughnessMap","clearcoatNormalMap","displacementMap","specularMap","roughnessMap","metalnessMap","gradientMap","alphaMap","combine","vertexColors","vertexTangents","vertexUvs","uvsVertexOnly","fog","useFog","fogExp2","flatShading","sizeAttenuation","logarithmicDepthBuffer","skinning","maxBones","useVertexTexture","morphTargets","morphNormals","maxMorphTargets","maxMorphNormals","premultipliedAlpha","numDirLights","numPointLights","numSpotLights","numHemiLights","numRectAreaLights","numDirLightShadows","numPointLightShadows","numSpotLightShadows","shadowMapEnabled","shadowMapType","toneMapping","physicallyCorrectLights","alphaTest","doubleSided","flipSided","numClippingPlanes","numClipIntersection","depthPacking","dithering","sheen","transmissionMap"];function x(t){let e;return t&&t.isTexture?e=t.encoding:t&&t.isWebGLRenderTarget?(console.warn("THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead."),e=t.texture.encoding):e=Xe,e}return{getParameters:function(i,o,g,v,y){const _=v.fog,b=i.isMeshStandardMaterial?v.environment:null,w=e.get(i.envMap||b),M=f[i.type],S=y.isSkinnedMesh?function(t){const e=t.skeleton.bones;if(c)return 1024;{const t=h,n=Math.floor((t-20)/4),r=Math.min(n,e.length);return r<e.length?(console.warn("THREE.WebGLRenderer: Skeleton has "+e.length+" bones. This GPU supports "+r+"."),0):r}}(y):0;let T,E;if(null!==i.precision&&(m=r.getMaxPrecision(i.precision))!==i.precision&&console.warn("THREE.WebGLProgram.getParameters:",i.precision,"not supported, using",m,"instead."),M){const t=tl[M];T=t.vertexShader,E=t.fragmentShader}else T=i.vertexShader,E=i.fragmentShader;const A=t.getRenderTarget();return{isWebGL2:a,shaderID:M,shaderName:i.type,vertexShader:T,fragmentShader:E,defines:i.defines,isRawShaderMaterial:!0===i.isRawShaderMaterial,glslVersion:i.glslVersion,precision:m,instancing:!0===y.isInstancedMesh,instancingColor:!0===y.isInstancedMesh&&null!==y.instanceColor,supportsVertexTextures:u,outputEncoding:null!==A?x(A.texture):t.outputEncoding,map:!!i.map,mapEncoding:x(i.map),matcap:!!i.matcap,matcapEncoding:x(i.matcap),envMap:!!w,envMapMode:w&&w.mapping,envMapEncoding:x(w),envMapCubeUV:!!w&&(w.mapping===ot||w.mapping===at),lightMap:!!i.lightMap,lightMapEncoding:x(i.lightMap),aoMap:!!i.aoMap,emissiveMap:!!i.emissiveMap,emissiveMapEncoding:x(i.emissiveMap),bumpMap:!!i.bumpMap,normalMap:!!i.normalMap,objectSpaceNormalMap:i.normalMapType===sn,tangentSpaceNormalMap:i.normalMapType===rn,clearcoatMap:!!i.clearcoatMap,clearcoatRoughnessMap:!!i.clearcoatRoughnessMap,clearcoatNormalMap:!!i.clearcoatNormalMap,displacementMap:!!i.displacementMap,roughnessMap:!!i.roughnessMap,metalnessMap:!!i.metalnessMap,specularMap:!!i.specularMap,alphaMap:!!i.alphaMap,gradientMap:!!i.gradientMap,sheen:!!i.sheen,transmissionMap:!!i.transmissionMap,combine:i.combine,vertexTangents:i.normalMap&&i.vertexTangents,vertexColors:i.vertexColors,vertexUvs:!!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatMap||i.clearcoatRoughnessMap||i.clearcoatNormalMap||i.displacementMap||i.transmissionMap),uvsVertexOnly:!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatNormalMap||i.transmissionMap||!i.displacementMap),fog:!!_,useFog:i.fog,fogExp2:_&&_.isFogExp2,flatShading:!!i.flatShading,sizeAttenuation:i.sizeAttenuation,logarithmicDepthBuffer:l,skinning:i.skinning&&S>0,maxBones:S,useVertexTexture:c,morphTargets:i.morphTargets,morphNormals:i.morphNormals,maxMorphTargets:t.maxMorphTargets,maxMorphNormals:t.maxMorphNormals,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numClippingPlanes:s.numPlanes,numClipIntersection:s.numIntersection,dithering:i.dithering,shadowMapEnabled:t.shadowMap.enabled&&g.length>0,shadowMapType:t.shadowMap.type,toneMapping:i.toneMapped?t.toneMapping:Z,physicallyCorrectLights:t.physicallyCorrectLights,premultipliedAlpha:i.premultipliedAlpha,alphaTest:i.alphaTest,doubleSided:i.side===d,flipSided:i.side===p,depthPacking:void 0!==i.depthPacking&&i.depthPacking,index0AttributeName:i.index0AttributeName,extensionDerivatives:i.extensions&&i.extensions.derivatives,extensionFragDepth:i.extensions&&i.extensions.fragDepth,extensionDrawBuffers:i.extensions&&i.extensions.drawBuffers,extensionShaderTextureLOD:i.extensions&&i.extensions.shaderTextureLOD,rendererExtensionFragDepth:a||n.has("EXT_frag_depth"),rendererExtensionDrawBuffers:a||n.has("WEBGL_draw_buffers"),rendererExtensionShaderTextureLod:a||n.has("EXT_shader_texture_lod"),customProgramCacheKey:i.customProgramCacheKey()}},getProgramCacheKey:function(e){const n=[];if(e.shaderID?n.push(e.shaderID):(n.push(e.fragmentShader),n.push(e.vertexShader)),void 0!==e.defines)for(const t in e.defines)n.push(t),n.push(e.defines[t]);if(!1===e.isRawShaderMaterial){for(let t=0;t<g.length;t++)n.push(e[g[t]]);n.push(t.outputEncoding),n.push(t.gammaFactor)}return n.push(e.customProgramCacheKey),n.join()},getUniforms:function(t){const e=f[t.type];let n;if(e){const 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t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:t.id-e.id}function qc(t){const e=[];let n=0;const r=[],i=[],s={id:-1};function o(r,i,o,a,l,c){let h=e[n];const u=t.get(o);return void 0===h?(h={id:r.id,object:r,geometry:i,material:o,program:u.program||s,groupOrder:a,renderOrder:r.renderOrder,z:l,group:c},e[n]=h):(h.id=r.id,h.object=r,h.geometry=i,h.material=o,h.program=u.program||s,h.groupOrder=a,h.renderOrder=r.renderOrder,h.z=l,h.group=c),n++,h}return{opaque:r,transparent:i,init:function(){n=0,r.length=0,i.length=0},push:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).push(c)},unshift:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).unshift(c)},finish:function(){for(let t=n,r=e.length;t<r;t++){const n=e[t];if(null===n.id)break;n.id=null,n.object=null,n.geometry=null,n.material=null,n.program=null,n.group=null}},sort:function(t,e){r.length>1&&r.sort(t||Wc),i.length>1&&i.sort(e||jc)}}}function Xc(t){let e=new WeakMap;return{get:function(n,r){let i;return!1===e.has(n)?(i=new qc(t),e.set(n,[i])):r>=e.get(n).length?(i=new qc(t),e.get(n).push(i)):i=e.get(n)[r],i},dispose:function(){e=new WeakMap}}}function Yc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":n={direction:new Yn,color:new xi};break;case"SpotLight":n={position:new Yn,direction:new Yn,color:new xi,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":n={position:new Yn,color:new xi,distance:0,decay:0};break;case"HemisphereLight":n={direction:new Yn,skyColor:new xi,groundColor:new xi};break;case"RectAreaLight":n={color:new xi,position:new Yn,halfWidth:new Yn,halfHeight:new Yn}}return t[e.id]=n,n}}}function Zc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":case"SpotLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On};break;case"PointLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On,shadowCameraNear:1,shadowCameraFar:1e3}}return t[e.id]=n,n}}}let Jc=0;function Qc(t,e){return(e.castShadow?1:0)-(t.castShadow?1:0)}function Kc(t,e){const n=new Yc,r=Zc(),i={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadow:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]};for(let l=0;l<9;l++)i.probe.push(new Yn);const s=new Yn,o=new wr,a=new wr;return{setup:function(s){let o=0,a=0,l=0;for(let t=0;t<9;t++)i.probe[t].set(0,0,0);let c=0,h=0,u=0,p=0,d=0,m=0,f=0,g=0;s.sort(Qc);for(let t=0,e=s.length;t<e;t++){const e=s[t],x=e.color,v=e.intensity,y=e.distance,_=e.shadow&&e.shadow.map?e.shadow.map.texture:null;if(e.isAmbientLight)o+=x.r*v,a+=x.g*v,l+=x.b*v;else if(e.isLightProbe)for(let t=0;t<9;t++)i.probe[t].addScaledVector(e.sh.coefficients[t],v);else if(e.isDirectionalLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.directionalShadow[c]=n,i.directionalShadowMap[c]=_,i.directionalShadowMatrix[c]=e.shadow.matrix,m++}i.directional[c]=t,c++}else if(e.isSpotLight){const t=n.get(e);if(t.position.setFromMatrixPosition(e.matrixWorld),t.color.copy(x).multiplyScalar(v),t.distance=y,t.coneCos=Math.cos(e.angle),t.penumbraCos=Math.cos(e.angle*(1-e.penumbra)),t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.spotShadow[u]=n,i.spotShadowMap[u]=_,i.spotShadowMatrix[u]=e.shadow.matrix,g++}i.spot[u]=t,u++}else if(e.isRectAreaLight){const t=n.get(e);t.color.copy(x).multiplyScalar(v),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),i.rectArea[p]=t,p++}else if(e.isPointLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),t.distance=e.distance,t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,n.shadowCameraNear=t.camera.near,n.shadowCameraFar=t.camera.far,i.pointShadow[h]=n,i.pointShadowMap[h]=_,i.pointShadowMatrix[h]=e.shadow.matrix,f++}i.point[h]=t,h++}else if(e.isHemisphereLight){const t=n.get(e);t.skyColor.copy(e.color).multiplyScalar(v),t.groundColor.copy(e.groundColor).multiplyScalar(v),i.hemi[d]=t,d++}}p>0&&(e.isWebGL2?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_float_linear")?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_half_float_linear")?(i.rectAreaLTC1=$a.LTC_HALF_1,i.rectAreaLTC2=$a.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.")),i.ambient[0]=o,i.ambient[1]=a,i.ambient[2]=l;const x=i.hash;x.directionalLength===c&&x.pointLength===h&&x.spotLength===u&&x.rectAreaLength===p&&x.hemiLength===d&&x.numDirectionalShadows===m&&x.numPointShadows===f&&x.numSpotShadows===g||(i.directional.length=c,i.spot.length=u,i.rectArea.length=p,i.point.length=h,i.hemi.length=d,i.directionalShadow.length=m,i.directionalShadowMap.length=m,i.pointShadow.length=f,i.pointShadowMap.length=f,i.spotShadow.length=g,i.spotShadowMap.length=g,i.directionalShadowMatrix.length=m,i.pointShadowMatrix.length=f,i.spotShadowMatrix.length=g,x.directionalLength=c,x.pointLength=h,x.spotLength=u,x.rectAreaLength=p,x.hemiLength=d,x.numDirectionalShadows=m,x.numPointShadows=f,x.numSpotShadows=g,i.version=Jc++)},setupView:function(t,e){let n=0,r=0,l=0,c=0,h=0;const u=e.matrixWorldInverse;for(let p=0,d=t.length;p<d;p++){const e=t[p];if(e.isDirectionalLight){const t=i.directional[n];t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),n++}else if(e.isSpotLight){const t=i.spot[l];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),l++}else if(e.isRectAreaLight){const t=i.rectArea[c];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),a.identity(),o.copy(e.matrixWorld),o.premultiply(u),a.extractRotation(o),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),t.halfWidth.applyMatrix4(a),t.halfHeight.applyMatrix4(a),c++}else if(e.isPointLight){const t=i.point[r];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),r++}else if(e.isHemisphereLight){const t=i.hemi[h];t.direction.setFromMatrixPosition(e.matrixWorld),t.direction.transformDirection(u),t.direction.normalize(),h++}}},state:i}}function $c(t,e){const n=new Kc(t,e),r=[],i=[];return{init:function(){r.length=0,i.length=0},state:{lightsArray:r,shadowsArray:i,lights:n},setupLights:function(){n.setup(r)},setupLightsView:function(t){n.setupView(r,t)},pushLight:function(t){r.push(t)},pushShadow:function(t){i.push(t)}}}function th(t,e){let n=new WeakMap;return{get:function(r,i=0){let s;return!1===n.has(r)?(s=new $c(t,e),n.set(r,[s])):i>=n.get(r).length?(s=new $c(t,e),n.get(r).push(s)):s=n.get(r)[i],s},dispose:function(){n=new WeakMap}}}class eh extends hi{constructor(t){super(),this.type="MeshDepthMaterial",this.depthPacking=en,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.depthPacking=t.depthPacking,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this}}exports.MeshDepthMaterial=eh,eh.prototype.isMeshDepthMaterial=!0;class nh extends hi{constructor(t){super(),this.type="MeshDistanceMaterial",this.referencePosition=new Yn,this.nearDistance=1,this.farDistance=1e3,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.referencePosition.copy(t.referencePosition),this.nearDistance=t.nearDistance,this.farDistance=t.farDistance,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this}}exports.MeshDistanceMaterial=nh,nh.prototype.isMeshDistanceMaterial=!0;var rh="uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}",ih="void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";function sh(t,e,n){let r=new Es;const i=new On,s=new On,o=new Wn,a=[],c=[],m={},f={0:p,1:u,2:d},x=new fs({defines:{SAMPLE_RATE:.25,HALF_SAMPLE_RATE:1/8},uniforms:{shadow_pass:{value:null},resolution:{value:new On},radius:{value:4}},vertexShader:ih,fragmentShader:rh}),v=x.clone();v.defines.HORIZONTAL_PASS=1;const y=new ki;y.setAttribute("position",new bi(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const _=new os(y,x),b=this;function w(n,r){const i=e.update(_);x.uniforms.shadow_pass.value=n.map.texture,x.uniforms.resolution.value=n.mapSize,x.uniforms.radius.value=n.radius,t.setRenderTarget(n.mapPass),t.clear(),t.renderBufferDirect(r,null,i,x,_,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,t.setRenderTarget(n.map),t.clear(),t.renderBufferDirect(r,null,i,v,_,null)}function M(t,e,n){const r=t<<0|e<<1|n<<2;let i=a[r];return void 0===i&&(i=new eh({depthPacking:nn,morphTargets:t,skinning:e}),a[r]=i),i}function S(t,e,n){const r=t<<0|e<<1|n<<2;let i=c[r];return void 0===i&&(i=new nh({morphTargets:t,skinning:e}),c[r]=i),i}function T(e,n,r,i,s,o,a){let l=null,c=M,u=e.customDepthMaterial;if(!0===i.isPointLight&&(c=S,u=e.customDistanceMaterial),void 0===u){let t=!1;!0===r.morphTargets&&(t=n.morphAttributes&&n.morphAttributes.position&&n.morphAttributes.position.length>0);let i=!1;!0===e.isSkinnedMesh&&(!0===r.skinning?i=!0:console.warn("THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:",e)),l=c(t,i,!0===e.isInstancedMesh)}else l=u;if(t.localClippingEnabled&&!0===r.clipShadows&&0!==r.clippingPlanes.length){const t=l.uuid,e=r.uuid;let n=m[t];void 0===n&&(n={},m[t]=n);let i=n[e];void 0===i&&(i=l.clone(),n[e]=i),l=i}return l.visible=r.visible,l.wireframe=r.wireframe,l.side=a===h?null!==r.shadowSide?r.shadowSide:r.side:null!==r.shadowSide?r.shadowSide:f[r.side],l.clipShadows=r.clipShadows,l.clippingPlanes=r.clippingPlanes,l.clipIntersection=r.clipIntersection,l.wireframeLinewidth=r.wireframeLinewidth,l.linewidth=r.linewidth,!0===i.isPointLight&&!0===l.isMeshDistanceMaterial&&(l.referencePosition.setFromMatrixPosition(i.matrixWorld),l.nearDistance=s,l.farDistance=o),l}function E(n,i,s,o,a){if(!1===n.visible)return;if(n.layers.test(i.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&a===h)&&(!n.frustumCulled||r.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(s.matrixWorldInverse,n.matrixWorld);const r=e.update(n),i=n.material;if(Array.isArray(i)){const e=r.groups;for(let l=0,c=e.length;l<c;l++){const c=e[l],h=i[c.materialIndex];if(h&&h.visible){const e=T(n,r,h,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,c)}}}else if(i.visible){const e=T(n,r,i,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,null)}}const l=n.children;for(let t=0,e=l.length;t<e;t++)E(l[t],i,s,o,a)}this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=l,this.render=function(e,a,l){if(!1===b.enabled)return;if(!1===b.autoUpdate&&!1===b.needsUpdate)return;if(0===e.length)return;const c=t.getRenderTarget(),u=t.getActiveCubeFace(),p=t.getActiveMipmapLevel(),d=t.state;d.setBlending(g),d.buffers.color.setClear(1,1,1,1),d.buffers.depth.setTest(!0),d.setScissorTest(!1);for(let m=0,f=e.length;m<f;m++){const c=e[m],u=c.shadow;if(void 0===u){console.warn("THREE.WebGLShadowMap:",c,"has no shadow.");continue}if(!1===u.autoUpdate&&!1===u.needsUpdate)continue;i.copy(u.mapSize);const p=u.getFrameExtents();if(i.multiply(p),s.copy(u.mapSize),(i.x>n||i.y>n)&&(i.x>n&&(s.x=Math.floor(n/p.x),i.x=s.x*p.x,u.mapSize.x=s.x),i.y>n&&(s.y=Math.floor(n/p.y),i.y=s.y*p.y,u.mapSize.y=s.y)),null===u.map&&!u.isPointLightShadow&&this.type===h){const t={minFilter:gt,magFilter:gt,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.mapPass=new jn(i.x,i.y,t),u.camera.updateProjectionMatrix()}if(null===u.map){const t={minFilter:ut,magFilter:ut,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.camera.updateProjectionMatrix()}t.setRenderTarget(u.map),t.clear();const f=u.getViewportCount();for(let t=0;t<f;t++){const e=u.getViewport(t);o.set(s.x*e.x,s.y*e.y,s.x*e.z,s.y*e.w),d.viewport(o),u.updateMatrices(c,t),r=u.getFrustum(),E(a,l,u.camera,c,this.type)}u.isPointLightShadow||this.type!==h||w(u,l),u.needsUpdate=!1}b.needsUpdate=!1,t.setRenderTarget(c,u,p)}}function oh(t,e,n){const o=n.isWebGL2;const a=new function(){let e=!1;const n=new Wn;let r=null;const i=new Wn(0,0,0,0);return{setMask:function(n){r===n||e||(t.colorMask(n,n,n,n),r=n)},setLocked:function(t){e=t},setClear:function(e,r,s,o,a){!0===a&&(e*=o,r*=o,s*=o),n.set(e,r,s,o),!1===i.equals(n)&&(t.clearColor(e,r,s,o),i.copy(n))},reset:function(){e=!1,r=null,i.set(-1,0,0,0)}}},l=new function(){let e=!1,n=null,r=null,i=null;return{setTest:function(t){t?mt(2929):ft(2929)},setMask:function(r){n===r||e||(t.depthMask(r),n=r)},setFunc:function(e){if(r!==e){if(e)switch(e){case z:t.depthFunc(512);break;case G:t.depthFunc(519);break;case H:t.depthFunc(513);break;case U:t.depthFunc(515);break;case k:t.depthFunc(514);break;case V:t.depthFunc(518);break;case W:t.depthFunc(516);break;case j:t.depthFunc(517);break;default:t.depthFunc(515)}else t.depthFunc(515);r=e}},setLocked:function(t){e=t},setClear:function(e){i!==e&&(t.clearDepth(e),i=e)},reset:function(){e=!1,n=null,r=null,i=null}}},c=new function(){let e=!1,n=null,r=null,i=null,s=null,o=null,a=null,l=null,c=null;return{setTest:function(t){e||(t?mt(2960):ft(2960))},setMask:function(r){n===r||e||(t.stencilMask(r),n=r)},setFunc:function(e,n,o){r===e&&i===n&&s===o||(t.stencilFunc(e,n,o),r=e,i=n,s=o)},setOp:function(e,n,r){o===e&&a===n&&l===r||(t.stencilOp(e,n,r),o=e,a=n,l=r)},setLocked:function(t){e=t},setClear:function(e){c!==e&&(t.clearStencil(e),c=e)},reset:function(){e=!1,n=null,r=null,i=null,s=null,o=null,a=null,l=null,c=null}}};let h={},u=null,m=!1,f=null,q=null,X=null,Y=null,Z=null,J=null,Q=null,K=!1,$=null,tt=null,et=null,nt=null,rt=null;const it=t.getParameter(35661);let st=!1,ot=0;const at=t.getParameter(7938);-1!==at.indexOf("WebGL")?(ot=parseFloat(/^WebGL (\d)/.exec(at)[1]),st=ot>=1):-1!==at.indexOf("OpenGL ES")&&(ot=parseFloat(/^OpenGL ES (\d)/.exec(at)[1]),st=ot>=2);let lt=null,ct={};const ht=new Wn,ut=new Wn;function pt(e,n,r){const i=new Uint8Array(4),s=t.createTexture();t.bindTexture(e,s),t.texParameteri(e,10241,9728),t.texParameteri(e,10240,9728);for(let o=0;o<r;o++)t.texImage2D(n+o,0,6408,1,1,0,6408,5121,i);return s}const dt={};function mt(e){!0!==h[e]&&(t.enable(e),h[e]=!0)}function ft(e){!1!==h[e]&&(t.disable(e),h[e]=!1)}dt[3553]=pt(3553,3553,1),dt[34067]=pt(34067,34069,6),a.setClear(0,0,0,1),l.setClear(1),c.setClear(0),mt(2929),l.setFunc(U),yt(!1),_t(i),mt(2884),vt(g);const gt={[w]:32774,[M]:32778,[S]:32779};if(o)gt[T]=32775,gt[E]=32776;else{const t=e.get("EXT_blend_minmax");null!==t&&(gt[T]=t.MIN_EXT,gt[E]=t.MAX_EXT)}const xt={[A]:0,[L]:1,[R]:768,[P]:770,[O]:776,[N]:774,[I]:772,[C]:769,[D]:771,[F]:775,[B]:773};function vt(e,n,r,i,s,o,a,l){if(e!==g){if(!1===m&&(mt(3042),m=!0),e===b)s=s||n,o=o||r,a=a||i,n===q&&s===Z||(t.blendEquationSeparate(gt[n],gt[s]),q=n,Z=s),r===X&&i===Y&&o===J&&a===Q||(t.blendFuncSeparate(xt[r],xt[i],xt[o],xt[a]),X=r,Y=i,J=o,Q=a),f=e,K=null;else if(e!==f||l!==K){if(q===w&&Z===w||(t.blendEquation(32774),q=w,Z=w),l)switch(e){case x:t.blendFuncSeparate(1,771,1,771);break;case v:t.blendFunc(1,1);break;case y:t.blendFuncSeparate(0,0,769,771);break;case _:t.blendFuncSeparate(0,768,0,770);break;default:console.error("THREE.WebGLState: Invalid blending: ",e)}else switch(e){case x:t.blendFuncSeparate(770,771,1,771);break;case v:t.blendFunc(770,1);break;case y:t.blendFunc(0,769);break;case _:t.blendFunc(0,768);break;default:console.error("THREE.WebGLState: Invalid blending: 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ah(t,e,n,r,i,s,o){const a=i.isWebGL2,l=i.maxTextures,c=i.maxCubemapSize,h=i.maxTextureSize,u=i.maxSamples,p=new WeakMap;let d,m=!1;try{m="undefined"!=typeof OffscreenCanvas&&null!==new OffscreenCanvas(1,1).getContext("2d")}catch(z){}function f(t,e){return m?new OffscreenCanvas(t,e):document.createElementNS("http://www.w3.org/1999/xhtml","canvas")}function g(t,e,n,r){let i=1;if((t.width>r||t.height>r)&&(i=r/Math.max(t.width,t.height)),i<1||!0===e){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const r=e?Fn.floorPowerOfTwo:Math.floor,s=r(i*t.width),o=r(i*t.height);void 0===d&&(d=f(s,o));const a=n?f(s,o):d;return a.width=s,a.height=o,a.getContext("2d").drawImage(t,0,0,s,o),console.warn("THREE.WebGLRenderer: Texture has been resized from ("+t.width+"x"+t.height+") to ("+s+"x"+o+")."),a}return"data"in t&&console.warn("THREE.WebGLRenderer: 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i=r.get(t);if(t.isVideoTexture&&function(t){const e=o.render.frame;p.get(t)!==e&&(p.set(t,e),t.update())}(t),t.version>0&&i.__version!==t.version){const n=t.image;if(void 0===n)console.warn("THREE.WebGLRenderer: Texture marked for update but image is undefined");else{if(!1!==n.complete)return void P(i,t,e);console.warn("THREE.WebGLRenderer: Texture marked for update but image is incomplete")}}n.activeTexture(33984+e),n.bindTexture(3553,i.__webglTexture)}function E(e,i){const o=r.get(e);e.version>0&&o.__version!==e.version?function(e,r,i){if(6!==r.image.length)return;C(e,r),n.activeTexture(33984+i),n.bindTexture(34067,e.__webglTexture),t.pixelStorei(37440,r.flipY),t.pixelStorei(37441,r.premultiplyAlpha),t.pixelStorei(3317,r.unpackAlignment),t.pixelStorei(37443,0);const o=r&&(r.isCompressedTexture||r.image[0].isCompressedTexture),l=r.image[0]&&r.image[0].isDataTexture,h=[];for(let t=0;t<6;t++)h[t]=o||l?l?r.image[t].image:r.image[t]:g(r.image[t],!1,!0,c);const 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uh,l[t]=e),e.getHandSpace()},this.setFramebufferScaleFactor=function(t){i=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(t){o=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return s},this.getSession=function(){return r},this.setSession=async function(t){if(null!==(r=t)){r.addEventListener("select",g),r.addEventListener("selectstart",g),r.addEventListener("selectend",g),r.addEventListener("squeeze",g),r.addEventListener("squeezestart",g),r.addEventListener("squeezeend",g),r.addEventListener("end",x),r.addEventListener("inputsourceschange",v);const t=e.getContextAttributes();!0!==t.xrCompatible&&await e.makeXRCompatible();const a={antialias:t.antialias,alpha:t.alpha,depth:t.depth,stencil:t.stencil,framebufferScaleFactor:i},l=new XRWebGLLayer(r,e,a);r.updateRenderState({baseLayer:l}),s=await 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r=e[t],s=n.getViewport(r),o=p[t];o.matrix.fromArray(r.transform.matrix),o.projectionMatrix.fromArray(r.projectionMatrix),o.viewport.set(s.x,s.y,s.width,s.height),0===t&&d.matrix.copy(o.matrix),!0===i&&d.cameras.push(o)}}const i=r.inputSources;for(let t=0;t<l.length;t++){const e=l[t],r=i[t];e.update(r,n,s)}w&&w(e,n)}),this.setAnimationLoop=function(t){w=t},this.dispose=function(){}}function dh(t){function e(e,n){e.opacity.value=n.opacity,n.color&&e.diffuse.value.copy(n.color),n.emissive&&e.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),n.map&&(e.map.value=n.map),n.alphaMap&&(e.alphaMap.value=n.alphaMap),n.specularMap&&(e.specularMap.value=n.specularMap);const r=t.get(n).envMap;if(r){e.envMap.value=r,e.flipEnvMap.value=r.isCubeTexture&&r._needsFlipEnvMap?-1:1,e.reflectivity.value=n.reflectivity,e.refractionRatio.value=n.refractionRatio;const i=t.get(r).__maxMipLevel;void 0!==i&&(e.maxMipLevel.value=i)}let i,s;n.lightMap&&(e.lightMap.value=n.lightMap,e.lightMapIntensity.value=n.lightMapIntensity),n.aoMap&&(e.aoMap.value=n.aoMap,e.aoMapIntensity.value=n.aoMapIntensity),n.map?i=n.map:n.specularMap?i=n.specularMap:n.displacementMap?i=n.displacementMap:n.normalMap?i=n.normalMap:n.bumpMap?i=n.bumpMap:n.roughnessMap?i=n.roughnessMap:n.metalnessMap?i=n.metalnessMap:n.alphaMap?i=n.alphaMap:n.emissiveMap?i=n.emissiveMap:n.clearcoatMap?i=n.clearcoatMap:n.clearcoatNormalMap?i=n.clearcoatNormalMap:n.clearcoatRoughnessMap&&(i=n.clearcoatRoughnessMap),void 0!==i&&(i.isWebGLRenderTarget&&(i=i.texture),!0===i.matrixAutoUpdate&&i.updateMatrix(),e.uvTransform.value.copy(i.matrix)),n.aoMap?s=n.aoMap:n.lightMap&&(s=n.lightMap),void 0!==s&&(s.isWebGLRenderTarget&&(s=s.texture),!0===s.matrixAutoUpdate&&s.updateMatrix(),e.uv2Transform.value.copy(s.matrix))}function n(e,n){e.roughness.value=n.roughness,e.metalness.value=n.metalness,n.roughnessMap&&(e.roughnessMap.value=n.roughnessMap),n.metalnessMap&&(e.metalnessMap.value=n.metalnessMap),n.emissiveMap&&(e.emissiveMap.value=n.emissiveMap),n.bumpMap&&(e.bumpMap.value=n.bumpMap,e.bumpScale.value=n.bumpScale,n.side===p&&(e.bumpScale.value*=-1)),n.normalMap&&(e.normalMap.value=n.normalMap,e.normalScale.value.copy(n.normalScale),n.side===p&&e.normalScale.value.negate()),n.displacementMap&&(e.displacementMap.value=n.displacementMap,e.displacementScale.value=n.displacementScale,e.displacementBias.value=n.displacementBias),t.get(n).envMap&&(e.envMapIntensity.value=n.envMapIntensity)}return{refreshFogUniforms:function(t,e){t.fogColor.value.copy(e.color),e.isFog?(t.fogNear.value=e.near,t.fogFar.value=e.far):e.isFogExp2&&(t.fogDensity.value=e.density)},refreshMaterialUniforms:function(t,r,i,s){r.isMeshBasicMaterial?e(t,r):r.isMeshLambertMaterial?(e(t,r),function(t,e){e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap)}(t,r)):r.isMeshToonMaterial?(e(t,r),function(t,e){e.gradientMap&&(t.gradientMap.value=e.gradientMap),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshPhongMaterial?(e(t,r),function(t,e){t.specular.value.copy(e.specular),t.shininess.value=Math.max(e.shininess,1e-4),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshStandardMaterial?(e(t,r),r.isMeshPhysicalMaterial?function(t,e){n(t,e),t.reflectivity.value=e.reflectivity,t.clearcoat.value=e.clearcoat,t.clearcoatRoughness.value=e.clearcoatRoughness,e.sheen&&t.sheen.value.copy(e.sheen),e.clearcoatMap&&(t.clearcoatMap.value=e.clearcoatMap),e.clearcoatRoughnessMap&&(t.clearcoatRoughnessMap.value=e.clearcoatRoughnessMap),e.clearcoatNormalMap&&(t.clearcoatNormalScale.value.copy(e.clearcoatNormalScale),t.clearcoatNormalMap.value=e.clearcoatNormalMap,e.side===p&&t.clearcoatNormalScale.value.negate()),t.transmission.value=e.transmission,e.transmissionMap&&(t.transmissionMap.value=e.transmissionMap)}(t,r):n(t,r)):r.isMeshMatcapMaterial?(e(t,r),function(t,e){e.matcap&&(t.matcap.value=e.matcap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshDepthMaterial?(e(t,r),function(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshDistanceMaterial?(e(t,r),function(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias),t.referencePosition.value.copy(e.referencePosition),t.nearDistance.value=e.nearDistance,t.farDistance.value=e.farDistance}(t,r)):r.isMeshNormalMaterial?(e(t,r),function(t,e){e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isLineBasicMaterial?(function(t,e){t.diffuse.value.copy(e.color),t.opacity.value=e.opacity}(t,r),r.isLineDashedMaterial&&function(t,e){t.dashSize.value=e.dashSize,t.totalSize.value=e.dashSize+e.gapSize,t.scale.value=e.scale}(t,r)):r.isPointsMaterial?function(t,e,n,r){let i;t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.size.value=e.size*n,t.scale.value=.5*r,e.map&&(t.map.value=e.map),e.alphaMap&&(t.alphaMap.value=e.alphaMap),e.map?i=e.map:e.alphaMap&&(i=e.alphaMap),void 0!==i&&(!0===i.matrixAutoUpdate&&i.updateMatrix(),t.uvTransform.value.copy(i.matrix))}(t,r,i,s):r.isSpriteMaterial?function(t,e){let n;t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.rotation.value=e.rotation,e.map&&(t.map.value=e.map),e.alphaMap&&(t.alphaMap.value=e.alphaMap),e.map?n=e.map:e.alphaMap&&(n=e.alphaMap),void 0!==n&&(!0===n.matrixAutoUpdate&&n.updateMatrix(),t.uvTransform.value.copy(n.matrix))}(t,r):r.isShadowMaterial?(t.color.value.copy(r.color),t.opacity.value=r.opacity):r.isShaderMaterial&&(r.uniformsNeedUpdate=!1)}}}function mh(){const t=document.createElementNS("http://www.w3.org/1999/xhtml","canvas");return t.style.display="block",t}function fh(t){const e=void 0!==(t=t||{}).canvas?t.canvas:mh(),n=void 0!==t.context?t.context:null,r=void 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Mt(t,e,n,r,i,s){if(t.onBeforeRender(f,e,n,r,i,s),t.modelViewMatrix.multiplyMatrices(n.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),t.isImmediateRenderObject){const r=Tt(n,e,i,t);W.setMaterial(i),ct.reset(),function(t,e){t.render(function(t){f.renderBufferImmediate(t,e)})}(t,r)}else f.renderBufferDirect(n,e,r,i,t,s);t.onAfterRender(f,e,n,r,i,s)}function St(t,e,n){!0!==e.isScene&&(e=H);const r=q.get(t),i=p.state.lights,s=p.state.shadowsArray,o=i.state.version,a=$.getParameters(t,i.state,s,e,n),l=$.getProgramCacheKey(a);let c=r.program,h=!0;if(r.environment=t.isMeshStandardMaterial?e.environment:null,r.fog=e.fog,r.envMap=Y.get(t.envMap||r.environment),void 0===c)t.addEventListener("dispose",xt);else if(c.cacheKey!==l)vt(t);else if(r.lightsStateVersion!==o)h=!1;else{if(void 0!==a.shaderID)return;h=!1}h&&(a.uniforms=$.getUniforms(t),t.onBeforeCompile(a,f),c=$.acquireProgram(a,l),r.program=c,r.uniforms=a.uniforms,r.outputEncoding=a.outputEncoding);const u=r.uniforms;(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(r.numClippingPlanes=rt.numPlanes,r.numIntersection=rt.numIntersection,u.clippingPlanes=rt.uniform),r.needsLights=function(t){return t.isMeshLambertMaterial||t.isMeshToonMaterial||t.isMeshPhongMaterial||t.isMeshStandardMaterial||t.isShadowMaterial||t.isShaderMaterial&&!0===t.lights}(t),r.lightsStateVersion=o,r.needsLights&&(u.ambientLightColor.value=i.state.ambient,u.lightProbe.value=i.state.probe,u.directionalLights.value=i.state.directional,u.directionalLightShadows.value=i.state.directionalShadow,u.spotLights.value=i.state.spot,u.spotLightShadows.value=i.state.spotShadow,u.rectAreaLights.value=i.state.rectArea,u.ltc_1.value=i.state.rectAreaLTC1,u.ltc_2.value=i.state.rectAreaLTC2,u.pointLights.value=i.state.point,u.pointLightShadows.value=i.state.pointShadow,u.hemisphereLights.value=i.state.hemi,u.directionalShadowMap.value=i.state.directionalShadowMap,u.directionalShadowMatrix.value=i.state.directionalShadowMatrix,u.spotShadowMap.value=i.state.spotShadowMap,u.spotShadowMatrix.value=i.state.spotShadowMatrix,u.pointShadowMap.value=i.state.pointShadowMap,u.pointShadowMatrix.value=i.state.pointShadowMatrix);const d=r.program.getUniforms(),m=dc.seqWithValue(d.seq,u);r.uniformsList=m}function Tt(t,e,n,r){!0!==e.isScene&&(e=H),X.resetTextureUnits();const i=e.fog,s=n.isMeshStandardMaterial?e.environment:null,o=null===_?f.outputEncoding:_.texture.encoding,a=Y.get(n.envMap||s),l=q.get(n),c=p.state.lights;if(!0===F&&(!0===O||t!==M)){const e=t===M&&n.id===w;rt.setState(n,t,e)}n.version===l.__version?n.fog&&l.fog!==i?St(n,e,r):l.environment!==s?St(n,e,r):l.needsLights&&l.lightsStateVersion!==c.state.version?St(n,e,r):void 0===l.numClippingPlanes||l.numClippingPlanes===rt.numPlanes&&l.numIntersection===rt.numIntersection?l.outputEncoding!==o?St(n,e,r):l.envMap!==a&&St(n,e,r):St(n,e,r):(St(n,e,r),l.__version=n.version);let h=!1,u=!1,d=!1;const m=l.program,g=m.getUniforms(),x=l.uniforms;if(W.useProgram(m.program)&&(h=!0,u=!0,d=!0),n.id!==w&&(w=n.id,u=!0),h||M!==t){if(g.setValue(ht,"projectionMatrix",t.projectionMatrix),V.logarithmicDepthBuffer&&g.setValue(ht,"logDepthBufFC",2/(Math.log(t.far+1)/Math.LN2)),M!==t&&(M=t,u=!0,d=!0),n.isShaderMaterial||n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshStandardMaterial||n.envMap){const e=g.map.cameraPosition;void 0!==e&&e.setValue(ht,G.setFromMatrixPosition(t.matrixWorld))}(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial)&&g.setValue(ht,"isOrthographic",!0===t.isOrthographicCamera),(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial||n.isShadowMaterial||n.skinning)&&g.setValue(ht,"viewMatrix",t.matrixWorldInverse)}if(n.skinning){g.setOptional(ht,r,"bindMatrix"),g.setOptional(ht,r,"bindMatrixInverse");const t=r.skeleton;if(t){const e=t.bones;if(V.floatVertexTextures){if(null===t.boneTexture){let n=Math.sqrt(4*e.length);n=Fn.ceilPowerOfTwo(n),n=Math.max(n,4);const r=new Float32Array(n*n*4);r.set(t.boneMatrices);const i=new Ms(r,n,n,Nt,At);t.boneMatrices=r,t.boneTexture=i,t.boneTextureSize=n}g.setValue(ht,"boneTexture",t.boneTexture,X),g.setValue(ht,"boneTextureSize",t.boneTextureSize)}else g.setOptional(ht,t,"boneMatrices")}}var v,y;return(u||l.receiveShadow!==r.receiveShadow)&&(l.receiveShadow=r.receiveShadow,g.setValue(ht,"receiveShadow",r.receiveShadow)),u&&(g.setValue(ht,"toneMappingExposure",f.toneMappingExposure),l.needsLights&&(y=d,(v=x).ambientLightColor.needsUpdate=y,v.lightProbe.needsUpdate=y,v.directionalLights.needsUpdate=y,v.directionalLightShadows.needsUpdate=y,v.pointLights.needsUpdate=y,v.pointLightShadows.needsUpdate=y,v.spotLights.needsUpdate=y,v.spotLightShadows.needsUpdate=y,v.rectAreaLights.needsUpdate=y,v.hemisphereLights.needsUpdate=y),i&&n.fog&&tt.refreshFogUniforms(x,i),tt.refreshMaterialUniforms(x,n,R,L),dc.upload(ht,l.uniformsList,x,X)),n.isShaderMaterial&&!0===n.uniformsNeedUpdate&&(dc.upload(ht,l.uniformsList,x,X),n.uniformsNeedUpdate=!1),n.isSpriteMaterial&&g.setValue(ht,"center",r.center),g.setValue(ht,"modelViewMatrix",r.modelViewMatrix),g.setValue(ht,"normalMatrix",r.normalMatrix),g.setValue(ht,"modelMatrix",r.matrixWorld),m}_t.setAnimationLoop(function(t){dt.isPresenting||yt&&yt(t)}),"undefined"!=typeof window&&_t.setContext(window),this.setAnimationLoop=function(t){yt=t,dt.setAnimationLoop(t),null===t?_t.stop():_t.start()},this.render=function(t,e){let n,r;if(void 0!==arguments[2]&&(console.warn("THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead."),n=arguments[2]),void 0!==arguments[3]&&(console.warn("THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead."),r=arguments[3]),void 0!==e&&!0!==e.isCamera)return void console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");if(!0===g)return;ct.resetDefaultState(),w=-1,M=null,!0===t.autoUpdate&&t.updateMatrixWorld(),null===e.parent&&e.updateMatrixWorld(),!0===dt.enabled&&!0===dt.isPresenting&&(e=dt.getCamera(e)),!0===t.isScene&&t.onBeforeRender(f,t,e,n||_),(p=nt.get(t,m.length)).init(),m.push(p),z.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),N.setFromProjectionMatrix(z),O=this.localClippingEnabled,F=rt.init(this.clippingPlanes,O,e),(u=et.get(t,d.length)).init(),d.push(u),function t(e,n,r,i){if(!1===e.visible)return;const s=e.layers.test(n.layers);if(s)if(e.isGroup)r=e.renderOrder;else if(e.isLOD)!0===e.autoUpdate&&e.update(n);else if(e.isLight)p.pushLight(e),e.castShadow&&p.pushShadow(e);else if(e.isSprite){if(!e.frustumCulled||N.intersectsSprite(e)){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;n.visible&&u.push(e,t,n,r,G.z,null)}}else if(e.isImmediateRenderObject)i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z),u.push(e,null,e.material,r,G.z,null);else if((e.isMesh||e.isLine||e.isPoints)&&(e.isSkinnedMesh&&e.skeleton.frame!==j.render.frame&&(e.skeleton.update(),e.skeleton.frame=j.render.frame),!e.frustumCulled||N.intersectsObject(e))){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;if(Array.isArray(n)){const i=t.groups;for(let s=0,o=i.length;s<o;s++){const o=i[s],a=n[o.materialIndex];a&&a.visible&&u.push(e,t,a,r,G.z,o)}}else n.visible&&u.push(e,t,n,r,G.z,null)}const o=e.children;for(let a=0,l=o.length;a<l;a++)t(o[a],n,r,i)}(t,e,0,f.sortObjects),u.finish(),!0===f.sortObjects&&u.sort(C,P),!0===F&&rt.beginShadows();const i=p.state.shadowsArray;mt.render(i,t,e),p.setupLights(),p.setupLightsView(e),!0===F&&rt.endShadows(),!0===this.info.autoReset&&this.info.reset(),void 0!==n&&this.setRenderTarget(n),it.render(u,t,e,r);const s=u.opaque,o=u.transparent;s.length>0&&wt(s,t,e),o.length>0&&wt(o,t,e),!0===t.isScene&&t.onAfterRender(f,t,e),null!==_&&(X.updateRenderTargetMipmap(_),X.updateMultisampleRenderTarget(_)),W.buffers.depth.setTest(!0),W.buffers.depth.setMask(!0),W.buffers.color.setMask(!0),W.setPolygonOffset(!1),m.pop(),p=m.length>0?m[m.length-1]:null,d.pop(),u=d.length>0?d[d.length-1]:null},this.setFramebuffer=function(t){x!==t&&null===_&&ht.bindFramebuffer(36160,t),x=t},this.getActiveCubeFace=function(){return v},this.getActiveMipmapLevel=function(){return y},this.getRenderTarget=function(){return _},this.setRenderTarget=function(t,e=0,n=0){_=t,v=e,y=n,t&&void 0===q.get(t).__webglFramebuffer&&X.setupRenderTarget(t);let r=x,i=!1,s=!1;if(t){const n=t.texture;(n.isDataTexture3D||n.isDataTexture2DArray)&&(s=!0);const o=q.get(t).__webglFramebuffer;t.isWebGLCubeRenderTarget?(r=o[e],i=!0):r=t.isWebGLMultisampleRenderTarget?q.get(t).__webglMultisampledFramebuffer:o,S.copy(t.viewport),T.copy(t.scissor),E=t.scissorTest}else S.copy(D).multiplyScalar(R).floor(),T.copy(I).multiplyScalar(R).floor(),E=B;if(b!==r&&(ht.bindFramebuffer(36160,r),b=r),W.viewport(S),W.scissor(T),W.setScissorTest(E),i){const r=q.get(t.texture);ht.framebufferTexture2D(36160,36064,34069+e,r.__webglTexture,n)}else if(s){const r=q.get(t.texture),i=e||0;ht.framebufferTextureLayer(36160,36064,r.__webglTexture,n||0,i)}},this.readRenderTargetPixels=function(t,e,n,r,i,s,o){if(!t||!t.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let a=q.get(t).__webglFramebuffer;if(t.isWebGLCubeRenderTarget&&void 0!==o&&(a=a[o]),a){let o=!1;a!==b&&(ht.bindFramebuffer(36160,a),o=!0);try{const a=t.texture,l=a.format,c=a.type;if(l!==Nt&&lt.convert(l)!==ht.getParameter(35739))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const h=c===Lt&&(k.has("EXT_color_buffer_half_float")||V.isWebGL2&&k.has("EXT_color_buffer_float"));if(!(c===bt||lt.convert(c)===ht.getParameter(35738)||c===At&&(V.isWebGL2||k.has("OES_texture_float")||k.has("WEBGL_color_buffer_float"))||h))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");36053===ht.checkFramebufferStatus(36160)?e>=0&&e<=t.width-r&&n>=0&&n<=t.height-i&&ht.readPixels(e,n,r,i,lt.convert(l),lt.convert(c),s):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.")}finally{o&&ht.bindFramebuffer(36160,b)}}},this.copyFramebufferToTexture=function(t,e,n=0){const r=Math.pow(2,-n),i=Math.floor(e.image.width*r),s=Math.floor(e.image.height*r),o=lt.convert(e.format);X.setTexture2D(e,0),ht.copyTexImage2D(3553,n,o,t.x,t.y,i,s,0),W.unbindTexture()},this.copyTextureToTexture=function(t,e,n,r=0){const i=e.image.width,s=e.image.height,o=lt.convert(n.format),a=lt.convert(n.type);X.setTexture2D(n,0),ht.pixelStorei(37440,n.flipY),ht.pixelStorei(37441,n.premultiplyAlpha),ht.pixelStorei(3317,n.unpackAlignment),e.isDataTexture?ht.texSubImage2D(3553,r,t.x,t.y,i,s,o,a,e.image.data):e.isCompressedTexture?ht.compressedTexSubImage2D(3553,r,t.x,t.y,e.mipmaps[0].width,e.mipmaps[0].height,o,e.mipmaps[0].data):ht.texSubImage2D(3553,r,t.x,t.y,o,a,e.image),0===r&&n.generateMipmaps&&ht.generateMipmap(3553),W.unbindTexture()},this.copyTextureToTexture3D=function(t,e,n,r,i=0){if(f.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const{width:s,height:o,data:a}=n.image,l=lt.convert(r.format),c=lt.convert(r.type);let h;if(r.isDataTexture3D)X.setTexture3D(r,0),h=32879;else{if(!r.isDataTexture2DArray)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");X.setTexture2DArray(r,0),h=35866}ht.pixelStorei(37440,r.flipY),ht.pixelStorei(37441,r.premultiplyAlpha),ht.pixelStorei(3317,r.unpackAlignment);const u=ht.getParameter(3314),p=ht.getParameter(32878),d=ht.getParameter(3316),m=ht.getParameter(3315),g=ht.getParameter(32877);ht.pixelStorei(3314,s),ht.pixelStorei(32878,o),ht.pixelStorei(3316,t.min.x),ht.pixelStorei(3315,t.min.y),ht.pixelStorei(32877,t.min.z),ht.texSubImage3D(h,i,e.x,e.y,e.z,t.max.x-t.min.x+1,t.max.y-t.min.y+1,t.max.z-t.min.z+1,l,c,a),ht.pixelStorei(3314,u),ht.pixelStorei(32878,p),ht.pixelStorei(3316,d),ht.pixelStorei(3315,m),ht.pixelStorei(32877,g),0===i&&r.generateMipmaps&&ht.generateMipmap(h),W.unbindTexture()},this.initTexture=function(t){X.setTexture2D(t,0),W.unbindTexture()},this.resetState=function(){W.reset(),ct.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}exports.Group=hh,hh.prototype.isGroup=!0,Object.assign(uh.prototype,{constructor:uh,getHandSpace:function(){return null===this._hand&&(this._hand=new hh,this._hand.matrixAutoUpdate=!1,this._hand.visible=!1,this._hand.joints={},this._hand.inputState={pinching:!1}),this._hand},getTargetRaySpace:function(){return null===this._targetRay&&(this._targetRay=new hh,this._targetRay.matrixAutoUpdate=!1,this._targetRay.visible=!1),this._targetRay},getGripSpace:function(){return null===this._grip&&(this._grip=new hh,this._grip.matrixAutoUpdate=!1,this._grip.visible=!1),this._grip},dispatchEvent:function(t){return null!==this._targetRay&&this._targetRay.dispatchEvent(t),null!==this._grip&&this._grip.dispatchEvent(t),null!==this._hand&&this._hand.dispatchEvent(t),this},disconnect:function(t){return this.dispatchEvent({type:"disconnected",data:t}),null!==this._targetRay&&(this._targetRay.visible=!1),null!==this._grip&&(this._grip.visible=!1),null!==this._hand&&(this._hand.visible=!1),this},update:function(t,e,n){let r=null,i=null,s=null;const o=this._targetRay,a=this._grip,l=this._hand;if(t&&"visible-blurred"!==e.session.visibilityState)if(l&&t.hand){s=!0;for(const s of t.hand.values()){const t=e.getJointPose(s,n);if(void 0===l.joints[s.jointName]){const t=new hh;t.matrixAutoUpdate=!1,t.visible=!1,l.joints[s.jointName]=t,l.add(t)}const r=l.joints[s.jointName];null!==t&&(r.matrix.fromArray(t.transform.matrix),r.matrix.decompose(r.position,r.rotation,r.scale),r.jointRadius=t.radius),r.visible=null!==t}const r=l.joints["index-finger-tip"],i=l.joints["thumb-tip"],o=r.position.distanceTo(i.position),a=.02,c=.005;l.inputState.pinching&&o>a+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this})):!l.inputState.pinching&&o<=a-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this}))}else null!==o&&null!==(r=e.getPose(t.targetRaySpace,n))&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale)),null!==a&&t.gripSpace&&null!==(i=e.getPose(t.gripSpace,n))&&(a.matrix.fromArray(i.transform.matrix),a.matrix.decompose(a.position,a.rotation,a.scale));return null!==o&&(o.visible=null!==r),null!==a&&(a.visible=null!==i),null!==l&&(l.visible=null!==s),this}}),Object.assign(ph.prototype,In.prototype);class gh extends fh{}exports.WebGL1Renderer=gh,gh.prototype.isWebGL1Renderer=!0;class xh{constructor(t,e){this.name="",this.color=new xi(t),this.density=void 0!==e?e:25e-5}clone(){return new xh(this.color,this.density)}toJSON(){return{type:"FogExp2",color:this.color.getHex(),density:this.density}}}exports.FogExp2=xh,xh.prototype.isFogExp2=!0;class vh{constructor(t,e,n){this.name="",this.color=new xi(t),this.near=void 0!==e?e:1,this.far=void 0!==n?n:1e3}clone(){return new vh(this.color,this.near,this.far)}toJSON(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}}}exports.Fog=vh,vh.prototype.isFog=!0;class yh extends Xr{constructor(){super(),this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.overrideMaterial=null,this.autoUpdate=!0,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){return super.copy(t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.environment&&(this.environment=t.environment.clone()),null!==t.fog&&(this.fog=t.fog.clone()),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.autoUpdate=t.autoUpdate,this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){const e=super.toJSON(t);return null!==this.background&&(e.object.background=this.background.toJSON(t)),null!==this.environment&&(e.object.environment=this.environment.toJSON(t)),null!==this.fog&&(e.object.fog=this.fog.toJSON()),e}}function _h(t,e){this.array=t,this.stride=e,this.count=void 0!==t?t.length/e:0,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0,this.uuid=Fn.generateUUID()}exports.Scene=yh,yh.prototype.isScene=!0,Object.defineProperty(_h.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(_h.prototype,{isInterleavedBuffer:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.stride,n*=e.stride;for(let r=0,i=this.stride;r<i;r++)this.array[t+r]=e.array[n+r];return this},set:function(t,e=0){return this.array.set(t,e),this},clone:function(t){void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer);const e=new _h(new this.array.constructor(t.arrayBuffers[this.array.buffer._uuid]),this.stride);return e.setUsage(this.usage),e},onUpload:function(t){return this.onUploadCallback=t,this},toJSON:function(t){return void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=Array.prototype.slice.call(new Uint32Array(this.array.buffer))),{uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride}}});const bh=new Yn;function wh(t,e,n,r){this.name="",this.data=t,this.itemSize=e,this.offset=n,this.normalized=!0===r}Object.defineProperties(wh.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}},needsUpdate:{set:function(t){this.data.needsUpdate=t}}}),Object.assign(wh.prototype,{isInterleavedBufferAttribute:!0,applyMatrix4:function(t){for(let e=0,n=this.data.count;e<n;e++)bh.x=this.getX(e),bh.y=this.getY(e),bh.z=this.getZ(e),bh.applyMatrix4(t),this.setXYZ(e,bh.x,bh.y,bh.z);return this},setX:function(t,e){return this.data.array[t*this.data.stride+this.offset]=e,this},setY:function(t,e){return this.data.array[t*this.data.stride+this.offset+1]=e,this},setZ:function(t,e){return this.data.array[t*this.data.stride+this.offset+2]=e,this},setW:function(t,e){return this.data.array[t*this.data.stride+this.offset+3]=e,this},getX:function(t){return this.data.array[t*this.data.stride+this.offset]},getY:function(t){return this.data.array[t*this.data.stride+this.offset+1]},getZ:function(t){return this.data.array[t*this.data.stride+this.offset+2]},getW:function(t){return this.data.array[t*this.data.stride+this.offset+3]},setXY:function(t,e,n){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this.data.array[t+3]=i,this},clone:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return new bi(new this.array.constructor(t),this.itemSize,this.normalized)}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.clone(t)),new wh(t.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized)},toJSON:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return{itemSize:this.itemSize,type:this.array.constructor.name,array:t,normalized:this.normalized}}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}});class Mh extends hi{constructor(t){super(),this.type="SpriteMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.rotation=0,this.sizeAttenuation=!0,this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.rotation=t.rotation,this.sizeAttenuation=t.sizeAttenuation,this}}let Sh;exports.SpriteMaterial=Mh,Mh.prototype.isSpriteMaterial=!0;const Th=new Yn,Eh=new Yn,Ah=new Yn,Lh=new On,Rh=new On,Ch=new wr,Ph=new Yn,Dh=new Yn,Ih=new Yn,Bh=new On,Nh=new On,Fh=new On;class Oh extends Xr{constructor(t){if(super(),this.type="Sprite",void 0===Sh){Sh=new ki;const t=new _h(new Float32Array([-.5,-.5,0,0,0,.5,-.5,0,1,0,.5,.5,0,1,1,-.5,.5,0,0,1]),5);Sh.setIndex([0,1,2,0,2,3]),Sh.setAttribute("position",new wh(t,3,0,!1)),Sh.setAttribute("uv",new wh(t,2,3,!1))}this.geometry=Sh,this.material=void 0!==t?t:new Mh,this.center=new On(.5,.5)}raycast(t,e){null===t.camera&&console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.'),Eh.setFromMatrixScale(this.matrixWorld),Ch.copy(t.camera.matrixWorld),this.modelViewMatrix.multiplyMatrices(t.camera.matrixWorldInverse,this.matrixWorld),Ah.setFromMatrixPosition(this.modelViewMatrix),t.camera.isPerspectiveCamera&&!1===this.material.sizeAttenuation&&Eh.multiplyScalar(-Ah.z);const n=this.material.rotation;let r,i;0!==n&&(i=Math.cos(n),r=Math.sin(n));const s=this.center;zh(Ph.set(-.5,-.5,0),Ah,s,Eh,r,i),zh(Dh.set(.5,-.5,0),Ah,s,Eh,r,i),zh(Ih.set(.5,.5,0),Ah,s,Eh,r,i),Bh.set(0,0),Nh.set(1,0),Fh.set(1,1);let o=t.ray.intersectTriangle(Ph,Dh,Ih,!1,Th);if(null===o&&(zh(Dh.set(-.5,.5,0),Ah,s,Eh,r,i),Nh.set(0,1),null===(o=t.ray.intersectTriangle(Ph,Ih,Dh,!1,Th))))return;const a=t.ray.origin.distanceTo(Th);a<t.near||a>t.far||e.push({distance:a,point:Th.clone(),uv:li.getUV(Th,Ph,Dh,Ih,Bh,Nh,Fh,new On),face:null,object:this})}copy(t){return super.copy(t),void 0!==t.center&&this.center.copy(t.center),this.material=t.material,this}}function zh(t,e,n,r,i,s){Lh.subVectors(t,n).addScalar(.5).multiply(r),void 0!==i?(Rh.x=s*Lh.x-i*Lh.y,Rh.y=i*Lh.x+s*Lh.y):Rh.copy(Lh),t.copy(e),t.x+=Rh.x,t.y+=Rh.y,t.applyMatrix4(Ch)}exports.Sprite=Oh,Oh.prototype.isSprite=!0;const Gh=new Yn,Hh=new Yn;class Uh extends Xr{constructor(){super(),this._currentLevel=0,this.type="LOD",Object.defineProperties(this,{levels:{enumerable:!0,value:[]},isLOD:{value:!0}}),this.autoUpdate=!0}copy(t){super.copy(t,!1);const e=t.levels;for(let n=0,r=e.length;n<r;n++){const t=e[n];this.addLevel(t.object.clone(),t.distance)}return this.autoUpdate=t.autoUpdate,this}addLevel(t,e=0){e=Math.abs(e);const n=this.levels;let r;for(r=0;r<n.length&&!(e<n[r].distance);r++);return n.splice(r,0,{distance:e,object:t}),this.add(t),this}getCurrentLevel(){return this._currentLevel}getObjectForDistance(t){const e=this.levels;if(e.length>0){let n,r;for(n=1,r=e.length;n<r&&!(t<e[n].distance);n++);return e[n-1].object}return null}raycast(t,e){if(this.levels.length>0){Gh.setFromMatrixPosition(this.matrixWorld);const n=t.ray.origin.distanceTo(Gh);this.getObjectForDistance(n).raycast(t,e)}}update(t){const e=this.levels;if(e.length>1){Gh.setFromMatrixPosition(t.matrixWorld),Hh.setFromMatrixPosition(this.matrixWorld);const n=Gh.distanceTo(Hh)/t.zoom;let r,i;for(e[0].object.visible=!0,r=1,i=e.length;r<i&&n>=e[r].distance;r++)e[r-1].object.visible=!1,e[r].object.visible=!0;for(this._currentLevel=r-1;r<i;r++)e[r].object.visible=!1}}toJSON(t){const e=super.toJSON(t);!1===this.autoUpdate&&(e.object.autoUpdate=!1),e.object.levels=[];const n=this.levels;for(let r=0,i=n.length;r<i;r++){const t=n[r];e.object.levels.push({object:t.object.uuid,distance:t.distance})}return e}}exports.LOD=Uh;const kh=new Yn,Vh=new Wn,Wh=new Wn,jh=new Yn,qh=new wr;function Xh(t,e){os.call(this,t,e),this.type="SkinnedMesh",this.bindMode="attached",this.bindMatrix=new wr,this.bindMatrixInverse=new wr}function Yh(){Xr.call(this),this.type="Bone"}Xh.prototype=Object.assign(Object.create(os.prototype),{constructor:Xh,isSkinnedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.bindMode=t.bindMode,this.bindMatrix.copy(t.bindMatrix),this.bindMatrixInverse.copy(t.bindMatrixInverse),this.skeleton=t.skeleton,this},bind:function(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.copy(e).invert()},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){const t=new Wn,e=this.geometry.attributes.skinWeight;for(let n=0,r=e.count;n<r;n++){t.x=e.getX(n),t.y=e.getY(n),t.z=e.getZ(n),t.w=e.getW(n);const r=1/t.manhattanLength();r!==1/0?t.multiplyScalar(r):t.set(1,0,0,0),e.setXYZW(n,t.x,t.y,t.z,t.w)}},updateMatrixWorld:function(t){os.prototype.updateMatrixWorld.call(this,t),"attached"===this.bindMode?this.bindMatrixInverse.copy(this.matrixWorld).invert():"detached"===this.bindMode?this.bindMatrixInverse.copy(this.bindMatrix).invert():console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)},boneTransform:function(t,e){const n=this.skeleton,r=this.geometry;Vh.fromBufferAttribute(r.attributes.skinIndex,t),Wh.fromBufferAttribute(r.attributes.skinWeight,t),kh.fromBufferAttribute(r.attributes.position,t).applyMatrix4(this.bindMatrix),e.set(0,0,0);for(let i=0;i<4;i++){const t=Wh.getComponent(i);if(0!==t){const r=Vh.getComponent(i);qh.multiplyMatrices(n.bones[r].matrixWorld,n.boneInverses[r]),e.addScaledVector(jh.copy(kh).applyMatrix4(qh),t)}}return e.applyMatrix4(this.bindMatrixInverse)}}),Yh.prototype=Object.assign(Object.create(Xr.prototype),{constructor:Yh,isBone:!0});const Zh=new wr,Jh=new wr;class Qh{constructor(t=[],e=[]){this.uuid=Fn.generateUUID(),this.bones=t.slice(0),this.boneInverses=e,this.boneMatrices=null,this.boneTexture=null,this.boneTextureSize=0,this.frame=-1,this.init()}init(){const t=this.bones,e=this.boneInverses;if(this.boneMatrices=new Float32Array(16*t.length),0===e.length)this.calculateInverses();else if(t.length!==e.length){console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones."),this.boneInverses=[];for(let t=0,e=this.bones.length;t<e;t++)this.boneInverses.push(new wr)}}calculateInverses(){this.boneInverses.length=0;for(let t=0,e=this.bones.length;t<e;t++){const e=new wr;this.bones[t]&&e.copy(this.bones[t].matrixWorld).invert(),this.boneInverses.push(e)}}pose(){for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&e.matrixWorld.copy(this.boneInverses[t]).invert()}for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&(e.parent&&e.parent.isBone?(e.matrix.copy(e.parent.matrixWorld).invert(),e.matrix.multiply(e.matrixWorld)):e.matrix.copy(e.matrixWorld),e.matrix.decompose(e.position,e.quaternion,e.scale))}}update(){const t=this.bones,e=this.boneInverses,n=this.boneMatrices,r=this.boneTexture;for(let i=0,s=t.length;i<s;i++){const r=t[i]?t[i].matrixWorld:Jh;Zh.multiplyMatrices(r,e[i]),Zh.toArray(n,16*i)}null!==r&&(r.needsUpdate=!0)}clone(){return new Qh(this.bones,this.boneInverses)}getBoneByName(t){for(let e=0,n=this.bones.length;e<n;e++){const n=this.bones[e];if(n.name===t)return n}}dispose(){null!==this.boneTexture&&(this.boneTexture.dispose(),this.boneTexture=null)}fromJSON(t,e){this.uuid=t.uuid;for(let n=0,r=t.bones.length;n<r;n++){const r=t.bones[n];let i=e[r];void 0===i&&(console.warn("THREE.Skeleton: No bone found with UUID:",r),i=new Yh),this.bones.push(i),this.boneInverses.push((new wr).fromArray(t.boneInverses[n]))}return this.init(),this}toJSON(){const t={metadata:{version:4.5,type:"Skeleton",generator:"Skeleton.toJSON"},bones:[],boneInverses:[]};t.uuid=this.uuid;const e=this.bones,n=this.boneInverses;for(let r=0,i=e.length;r<i;r++){const i=e[r];t.bones.push(i.uuid);const s=n[r];t.boneInverses.push(s.toArray())}return t}}exports.Skeleton=Qh;const Kh=new wr,$h=new wr,tu=[],eu=new os;function nu(t,e,n){os.call(this,t,e),this.instanceMatrix=new bi(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.frustumCulled=!1}nu.prototype=Object.assign(Object.create(os.prototype),{constructor:nu,isInstancedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.instanceMatrix.copy(t.instanceMatrix),null!==t.instanceColor&&(this.instanceColor=t.instanceColor.clone()),this.count=t.count,this},getColorAt:function(t,e){e.fromArray(this.instanceColor.array,3*t)},getMatrixAt:function(t,e){e.fromArray(this.instanceMatrix.array,16*t)},raycast:function(t,e){const n=this.matrixWorld,r=this.count;if(eu.geometry=this.geometry,eu.material=this.material,void 0!==eu.material)for(let i=0;i<r;i++){this.getMatrixAt(i,Kh),$h.multiplyMatrices(n,Kh),eu.matrixWorld=$h,eu.raycast(t,tu);for(let t=0,n=tu.length;t<n;t++){const n=tu[t];n.instanceId=i,n.object=this,e.push(n)}tu.length=0}},setColorAt:function(t,e){null===this.instanceColor&&(this.instanceColor=new bi(new Float32Array(3*this.count),3)),e.toArray(this.instanceColor.array,3*t)},setMatrixAt:function(t,e){e.toArray(this.instanceMatrix.array,16*t)},updateMorphTargets:function(){},dispose:function(){this.dispatchEvent({type:"dispose"})}});class ru extends hi{constructor(t){super(),this.type="LineBasicMaterial",this.color=new xi(16777215),this.linewidth=1,this.linecap="round",this.linejoin="round",this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this.morphTargets=t.morphTargets,this}}exports.LineBasicMaterial=ru,ru.prototype.isLineBasicMaterial=!0;const iu=new Yn,su=new Yn,ou=new wr,au=new br,lu=new dr;function cu(t=new ki,e=new ru){Xr.call(this),this.type="Line",this.geometry=t,this.material=e,this.updateMorphTargets()}cu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:cu,isLine:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[0];for(let t=1,r=e.count;t<r;t++)iu.fromBufferAttribute(e,t-1),su.fromBufferAttribute(e,t),n[t]=n[t-1],n[t]+=iu.distanceTo(su);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Line.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),lu.copy(n.boundingSphere),lu.applyMatrix4(r),lu.radius+=i,!1===t.ray.intersectsSphere(lu))return;ou.copy(r).invert(),au.copy(t.ray).applyMatrix4(ou);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s,a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=this.isLineSegments?2:1;if(n.isBufferGeometry){const r=n.index,i=n.attributes.position;if(null!==r){const n=r.array;for(let r=0,s=n.length-1;r<s;r+=u){const s=n[r],u=n[r+1];if(a.fromBufferAttribute(i,s),l.fromBufferAttribute(i,u),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const p=t.ray.origin.distanceTo(h);p<t.near||p>t.far||e.push({distance:p,point:c.clone().applyMatrix4(this.matrixWorld),index:r,face:null,faceIndex:null,object:this})}}else for(let n=0,s=i.count-1;n<s;n+=u){if(a.fromBufferAttribute(i,n),l.fromBufferAttribute(i,n+1),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const r=t.ray.origin.distanceTo(h);r<t.near||r>t.far||e.push({distance:r,point:c.clone().applyMatrix4(this.matrixWorld),index:n,face:null,faceIndex:null,object:this})}}else n.isGeometry&&console.error("THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});const hu=new Yn,uu=new Yn;function pu(t,e){cu.call(this,t,e),this.type="LineSegments"}pu.prototype=Object.assign(Object.create(cu.prototype),{constructor:pu,isLineSegments:!0,computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[];for(let t=0,r=e.count;t<r;t+=2)hu.fromBufferAttribute(e,t),uu.fromBufferAttribute(e,t+1),n[t]=0===t?0:n[t-1],n[t+1]=n[t]+hu.distanceTo(uu);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this}});class du extends cu{constructor(t,e){super(t,e),this.type="LineLoop"}}exports.LineLoop=du,du.prototype.isLineLoop=!0;class mu extends hi{constructor(t){super(),this.type="PointsMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.size=1,this.sizeAttenuation=!0,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this.morphTargets=t.morphTargets,this}}exports.PointsMaterial=mu,mu.prototype.isPointsMaterial=!0;const fu=new wr,gu=new br,xu=new dr,vu=new Yn;function yu(t=new ki,e=new mu){Xr.call(this),this.type="Points",this.geometry=t,this.material=e,this.updateMorphTargets()}function _u(t,e,n,r,i,s,o){const a=gu.distanceSqToPoint(t);if(a<n){const n=new Yn;gu.closestPointToPoint(t,n),n.applyMatrix4(r);const l=i.ray.origin.distanceTo(n);if(l<i.near||l>i.far)return;s.push({distance:l,distanceToRay:Math.sqrt(a),point:n,index:e,face:null,object:o})}}yu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:yu,isPoints:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Points.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),xu.copy(n.boundingSphere),xu.applyMatrix4(r),xu.radius+=i,!1===t.ray.intersectsSphere(xu))return;fu.copy(r).invert(),gu.copy(t.ray).applyMatrix4(fu);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s;if(n.isBufferGeometry){const i=n.index,s=n.attributes.position;if(null!==i){const n=i.array;for(let i=0,a=n.length;i<a;i++){const a=n[i];vu.fromBufferAttribute(s,a),_u(vu,a,o,r,t,e,this)}}else for(let n=0,a=s.count;n<a;n++)vu.fromBufferAttribute(s,n),_u(vu,n,o,r,t,e,this)}else console.error("THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});class bu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.format=void 0!==o?o:Bt,this.minFilter=void 0!==s?s:gt,this.magFilter=void 0!==i?i:gt,this.generateMipmaps=!1;const c=this;"requestVideoFrameCallback"in t&&t.requestVideoFrameCallback(function e(){c.needsUpdate=!0,t.requestVideoFrameCallback(e)})}clone(){return new this.constructor(this.image).copy(this)}update(){const t=this.image;!1==="requestVideoFrameCallback"in t&&t.readyState>=t.HAVE_CURRENT_DATA&&(this.needsUpdate=!0)}}exports.VideoTexture=bu,bu.prototype.isVideoTexture=!0;class wu extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={width:e,height:n},this.mipmaps=t,this.flipY=!1,this.generateMipmaps=!1}}exports.CompressedTexture=wu,wu.prototype.isCompressedTexture=!0;class Mu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.needsUpdate=!0}}exports.CanvasTexture=Mu,Mu.prototype.isCanvasTexture=!0;class Su extends kn{constructor(t,e,n,r,i,s,o,a,l,c){if((c=void 0!==c?c:Gt)!==Gt&&c!==Ht)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===Gt&&(n=St),void 0===n&&c===Ht&&(n=Dt),super(null,r,i,s,o,a,c,n,l),this.image={width:t,height:e},this.magFilter=void 0!==o?o:ut,this.minFilter=void 0!==a?a:ut,this.flipY=!1,this.generateMipmaps=!1}}exports.DepthTexture=Su,Su.prototype.isDepthTexture=!0;class Tu extends ki{constructor(t=1,e=8,n=0,r=2*Math.PI){super(),this.type="CircleGeometry",this.parameters={radius:t,segments:e,thetaStart:n,thetaLength:r},e=Math.max(3,e);const i=[],s=[],o=[],a=[],l=new Yn,c=new On;s.push(0,0,0),o.push(0,0,1),a.push(.5,.5);for(let h=0,u=3;h<=e;h++,u+=3){const i=n+h/e*r;l.x=t*Math.cos(i),l.y=t*Math.sin(i),s.push(l.x,l.y,l.z),o.push(0,0,1),c.x=(s[u]/t+1)/2,c.y=(s[u+1]/t+1)/2,a.push(c.x,c.y)}for(let h=1;h<=e;h++)i.push(h,h+1,0);this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("normal",new Ci(o,3)),this.setAttribute("uv",new Ci(a,2))}}exports.CircleGeometry=exports.CircleBufferGeometry=Tu;class Eu extends ki{constructor(t=1,e=1,n=1,r=8,i=1,s=!1,o=0,a=2*Math.PI){super(),this.type="CylinderGeometry",this.parameters={radiusTop:t,radiusBottom:e,height:n,radialSegments:r,heightSegments:i,openEnded:s,thetaStart:o,thetaLength:a};const l=this;r=Math.floor(r),i=Math.floor(i);const c=[],h=[],u=[],p=[];let d=0;const m=[],f=n/2;let g=0;function x(n){const i=d,s=new On,m=new Yn;let x=0;const v=!0===n?t:e,y=!0===n?1:-1;for(let t=1;t<=r;t++)h.push(0,f*y,0),u.push(0,y,0),p.push(.5,.5),d++;const _=d;for(let t=0;t<=r;t++){const e=t/r*a+o,n=Math.cos(e),i=Math.sin(e);m.x=v*i,m.y=f*y,m.z=v*n,h.push(m.x,m.y,m.z),u.push(0,y,0),s.x=.5*n+.5,s.y=.5*i*y+.5,p.push(s.x,s.y),d++}for(let t=0;t<r;t++){const e=i+t,r=_+t;!0===n?c.push(r,r+1,e):c.push(r+1,r,e),x+=3}l.addGroup(g,x,!0===n?1:2),g+=x}!function(){const s=new Yn,x=new Yn;let v=0;const y=(e-t)/n;for(let l=0;l<=i;l++){const c=[],g=l/i,v=g*(e-t)+t;for(let t=0;t<=r;t++){const e=t/r,i=e*a+o,l=Math.sin(i),m=Math.cos(i);x.x=v*l,x.y=-g*n+f,x.z=v*m,h.push(x.x,x.y,x.z),s.set(l,y,m).normalize(),u.push(s.x,s.y,s.z),p.push(e,1-g),c.push(d++)}m.push(c)}for(let t=0;t<r;t++)for(let e=0;e<i;e++){const n=m[e][t],r=m[e+1][t],i=m[e+1][t+1],s=m[e][t+1];c.push(n,r,s),c.push(r,i,s),v+=6}l.addGroup(g,v,0),g+=v}(),!1===s&&(t>0&&x(!0),e>0&&x(!1)),this.setIndex(c),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}}exports.CylinderGeometry=exports.CylinderBufferGeometry=Eu;class Au extends Eu{constructor(t=1,e=1,n=8,r=1,i=!1,s=0,o=2*Math.PI){super(0,t,e,n,r,i,s,o),this.type="ConeGeometry",this.parameters={radius:t,height:e,radialSegments:n,heightSegments:r,openEnded:i,thetaStart:s,thetaLength:o}}}exports.ConeGeometry=exports.ConeBufferGeometry=Au;class Lu extends ki{constructor(t,e,n=1,r=0){super(),this.type="PolyhedronGeometry",this.parameters={vertices:t,indices:e,radius:n,detail:r};const i=[],s=[];function o(t,e,n,r){const i=r+1,s=[];for(let o=0;o<=i;o++){s[o]=[];const r=t.clone().lerp(n,o/i),a=e.clone().lerp(n,o/i),l=i-o;for(let t=0;t<=l;t++)s[o][t]=0===t&&o===i?r:r.clone().lerp(a,t/l)}for(let o=0;o<i;o++)for(let t=0;t<2*(i-o)-1;t++){const e=Math.floor(t/2);t%2==0?(a(s[o][e+1]),a(s[o+1][e]),a(s[o][e])):(a(s[o][e+1]),a(s[o+1][e+1]),a(s[o+1][e]))}}function a(t){i.push(t.x,t.y,t.z)}function l(e,n){const r=3*e;n.x=t[r+0],n.y=t[r+1],n.z=t[r+2]}function c(t,e,n,r){r<0&&1===t.x&&(s[e]=t.x-1),0===n.x&&0===n.z&&(s[e]=r/2/Math.PI+.5)}function h(t){return Math.atan2(t.z,-t.x)}!function(t){const n=new Yn,r=new Yn,i=new Yn;for(let s=0;s<e.length;s+=3)l(e[s+0],n),l(e[s+1],r),l(e[s+2],i),o(n,r,i,t)}(r),function(t){const e=new Yn;for(let n=0;n<i.length;n+=3)e.x=i[n+0],e.y=i[n+1],e.z=i[n+2],e.normalize().multiplyScalar(t),i[n+0]=e.x,i[n+1]=e.y,i[n+2]=e.z}(n),function(){const t=new Yn;for(let n=0;n<i.length;n+=3){t.x=i[n+0],t.y=i[n+1],t.z=i[n+2];const r=h(t)/2/Math.PI+.5,o=(e=t,Math.atan2(-e.y,Math.sqrt(e.x*e.x+e.z*e.z))/Math.PI+.5);s.push(r,1-o)}var e;(function(){const t=new Yn,e=new Yn,n=new Yn,r=new Yn,o=new On,a=new On,l=new On;for(let u=0,p=0;u<i.length;u+=9,p+=6){t.set(i[u+0],i[u+1],i[u+2]),e.set(i[u+3],i[u+4],i[u+5]),n.set(i[u+6],i[u+7],i[u+8]),o.set(s[p+0],s[p+1]),a.set(s[p+2],s[p+3]),l.set(s[p+4],s[p+5]),r.copy(t).add(e).add(n).divideScalar(3);const d=h(r);c(o,p+0,t,d),c(a,p+2,e,d),c(l,p+4,n,d)}})(),function(){for(let t=0;t<s.length;t+=6){const e=s[t+0],n=s[t+2],r=s[t+4],i=Math.max(e,n,r),o=Math.min(e,n,r);i>.9&&o<.1&&(e<.2&&(s[t+0]+=1),n<.2&&(s[t+2]+=1),r<.2&&(s[t+4]+=1))}}()}(),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(i.slice(),3)),this.setAttribute("uv",new Ci(s,2)),0===r?this.computeVertexNormals():this.normalizeNormals()}}exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=Lu;class Ru extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2,r=1/n;super([-1,-1,-1,-1,-1,1,-1,1,-1,-1,1,1,1,-1,-1,1,-1,1,1,1,-1,1,1,1,0,-r,-n,0,-r,n,0,r,-n,0,r,n,-r,-n,0,-r,n,0,r,-n,0,r,n,0,-n,0,-r,n,0,-r,-n,0,r,n,0,r],[3,11,7,3,7,15,3,15,13,7,19,17,7,17,6,7,6,15,17,4,8,17,8,10,17,10,6,8,0,16,8,16,2,8,2,10,0,12,1,0,1,18,0,18,16,6,10,2,6,2,13,6,13,15,2,16,18,2,18,3,2,3,13,18,1,9,18,9,11,18,11,3,4,14,12,4,12,0,4,0,8,11,9,5,11,5,19,11,19,7,19,5,14,19,14,4,19,4,17,1,12,14,1,14,5,1,5,9],t,e),this.type="DodecahedronGeometry",this.parameters={radius:t,detail:e}}}exports.DodecahedronGeometry=exports.DodecahedronBufferGeometry=Ru;const Cu=new Yn,Pu=new Yn,Du=new Yn,Iu=new li;class Bu extends ki{constructor(t,e){if(super(),this.type="EdgesGeometry",this.parameters={thresholdAngle:e},e=void 0!==e?e:1,!0===t.isGeometry)return void console.error("THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const n=Math.pow(10,4),r=Math.cos(Fn.DEG2RAD*e),i=t.getIndex(),s=t.getAttribute("position"),o=i?i.count:s.count,a=[0,0,0],l=["a","b","c"],c=new Array(3),h={},u=[];for(let p=0;p<o;p+=3){i?(a[0]=i.getX(p),a[1]=i.getX(p+1),a[2]=i.getX(p+2)):(a[0]=p,a[1]=p+1,a[2]=p+2);const{a:t,b:e,c:o}=Iu;if(t.fromBufferAttribute(s,a[0]),e.fromBufferAttribute(s,a[1]),o.fromBufferAttribute(s,a[2]),Iu.getNormal(Du),c[0]=`${Math.round(t.x*n)},${Math.round(t.y*n)},${Math.round(t.z*n)}`,c[1]=`${Math.round(e.x*n)},${Math.round(e.y*n)},${Math.round(e.z*n)}`,c[2]=`${Math.round(o.x*n)},${Math.round(o.y*n)},${Math.round(o.z*n)}`,c[0]!==c[1]&&c[1]!==c[2]&&c[2]!==c[0])for(let n=0;n<3;n++){const t=(n+1)%3,e=c[n],i=c[t],s=Iu[l[n]],o=Iu[l[t]],p=`${e}_${i}`,d=`${i}_${e}`;d in h&&h[d]?(Du.dot(h[d].normal)<=r&&(u.push(s.x,s.y,s.z),u.push(o.x,o.y,o.z)),h[d]=null):p in h||(h[p]={index0:a[n],index1:a[t],normal:Du.clone()})}}for(const p in h)if(h[p]){const{index0:t,index1:e}=h[p];Cu.fromBufferAttribute(s,t),Pu.fromBufferAttribute(s,e),u.push(Cu.x,Cu.y,Cu.z),u.push(Pu.x,Pu.y,Pu.z)}this.setAttribute("position",new Ci(u,3))}}exports.EdgesGeometry=Bu;const Nu={triangulate:function(t,e,n){n=n||2;const r=e&&e.length,i=r?e[0]*n:t.length;let s=Fu(t,0,i,n,!0);const o=[];if(!s||s.next===s.prev)return o;let a,l,c,h,u,p,d;if(r&&(s=Vu(t,e,s,n)),t.length>80*n){a=c=t[0],l=h=t[1];for(let e=n;e<i;e+=n)(u=t[e])<a&&(a=u),(p=t[e+1])<l&&(l=p),u>c&&(c=u),p>h&&(h=p);d=0!==(d=Math.max(c-a,h-l))?1/d:0}return zu(s,o,n,a,l,d),o}};function Fu(t,e,n,r,i){let s,o;if(i===pp(t,e,n,r)>0)for(s=e;s<n;s+=r)o=cp(s,t[s],t[s+1],o);else for(s=n-r;s>=e;s-=r)o=cp(s,t[s],t[s+1],o);return o&&ep(o,o.next)&&(hp(o),o=o.next),o}function Ou(t,e){if(!t)return t;e||(e=t);let n,r=t;do{if(n=!1,r.steiner||!ep(r,r.next)&&0!==tp(r.prev,r,r.next))r=r.next;else{if(hp(r),(r=e=r.prev)===r.next)break;n=!0}}while(n||r!==e);return e}function zu(t,e,n,r,i,s,o){if(!t)return;!o&&s&&Yu(t,r,i,s);let a,l,c=t;for(;t.prev!==t.next;)if(a=t.prev,l=t.next,s?Hu(t,r,i,s):Gu(t))e.push(a.i/n),e.push(t.i/n),e.push(l.i/n),hp(t),t=l.next,c=l.next;else if((t=l)===c){o?1===o?zu(t=Uu(Ou(t),e,n),e,n,r,i,s,2):2===o&&ku(t,e,n,r,i,s):zu(Ou(t),e,n,r,i,s,1);break}}function Gu(t){const e=t.prev,n=t,r=t.next;if(tp(e,n,r)>=0)return!1;let i=t.next.next;for(;i!==t.prev;){if(Ku(e.x,e.y,n.x,n.y,r.x,r.y,i.x,i.y)&&tp(i.prev,i,i.next)>=0)return!1;i=i.next}return!0}function Hu(t,e,n,r){const i=t.prev,s=t,o=t.next;if(tp(i,s,o)>=0)return!1;const a=i.x<s.x?i.x<o.x?i.x:o.x:s.x<o.x?s.x:o.x,l=i.y<s.y?i.y<o.y?i.y:o.y:s.y<o.y?s.y:o.y,c=i.x>s.x?i.x>o.x?i.x:o.x:s.x>o.x?s.x:o.x,h=i.y>s.y?i.y>o.y?i.y:o.y:s.y>o.y?s.y:o.y,u=Ju(a,l,e,n,r),p=Ju(c,h,e,n,r);let d=t.prevZ,m=t.nextZ;for(;d&&d.z>=u&&m&&m.z<=p;){if(d!==t.prev&&d!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,d.x,d.y)&&tp(d.prev,d,d.next)>=0)return!1;if(d=d.prevZ,m!==t.prev&&m!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,m.x,m.y)&&tp(m.prev,m,m.next)>=0)return!1;m=m.nextZ}for(;d&&d.z>=u;){if(d!==t.prev&&d!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,d.x,d.y)&&tp(d.prev,d,d.next)>=0)return!1;d=d.prevZ}for(;m&&m.z<=p;){if(m!==t.prev&&m!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,m.x,m.y)&&tp(m.prev,m,m.next)>=0)return!1;m=m.nextZ}return!0}function Uu(t,e,n){let r=t;do{const i=r.prev,s=r.next.next;!ep(i,s)&&np(i,r,r.next,s)&&op(i,s)&&op(s,i)&&(e.push(i.i/n),e.push(r.i/n),e.push(s.i/n),hp(r),hp(r.next),r=t=s),r=r.next}while(r!==t);return Ou(r)}function ku(t,e,n,r,i,s){let o=t;do{let t=o.next.next;for(;t!==o.prev;){if(o.i!==t.i&&$u(o,t)){let a=lp(o,t);return o=Ou(o,o.next),a=Ou(a,a.next),zu(o,e,n,r,i,s),void zu(a,e,n,r,i,s)}t=t.next}o=o.next}while(o!==t)}function Vu(t,e,n,r){const i=[];let 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i=t;do{null===i.z&&(i.z=Ju(i.x,i.y,e,n,r)),i.prevZ=i.prev,i.nextZ=i.next,i=i.next}while(i!==t);i.prevZ.nextZ=null,i.prevZ=null,Zu(i)}function Zu(t){let e,n,r,i,s,o,a,l,c=1;do{for(n=t,t=null,s=null,o=0;n;){for(o++,r=n,a=0,e=0;e<c&&(a++,r=r.nextZ);e++);for(l=c;a>0||l>0&&r;)0!==a&&(0===l||!r||n.z<=r.z)?(i=n,n=n.nextZ,a--):(i=r,r=r.nextZ,l--),s?s.nextZ=i:t=i,i.prevZ=s,s=i;n=r}s.nextZ=null,c*=2}while(o>1);return t}function Ju(t,e,n,r,i){return(t=1431655765&((t=858993459&((t=252645135&((t=16711935&((t=32767*(t-n)*i)|t<<8))|t<<4))|t<<2))|t<<1))|(e=1431655765&((e=858993459&((e=252645135&((e=16711935&((e=32767*(e-r)*i)|e<<8))|e<<4))|e<<2))|e<<1))<<1}function Qu(t){let e=t,n=t;do{(e.x<n.x||e.x===n.x&&e.y<n.y)&&(n=e),e=e.next}while(e!==t);return n}function Ku(t,e,n,r,i,s,o,a){return(i-o)*(e-a)-(t-o)*(s-a)>=0&&(t-o)*(r-a)-(n-o)*(e-a)>=0&&(n-o)*(s-a)-(i-o)*(r-a)>=0}function $u(t,e){return t.next.i!==e.i&&t.prev.i!==e.i&&!sp(t,e)&&(op(t,e)&&op(e,t)&&ap(t,e)&&(tp(t.prev,t,e.prev)||tp(t,e.prev,e))||ep(t,e)&&tp(t.prev,t,t.next)>0&&tp(e.prev,e,e.next)>0)}function tp(t,e,n){return(e.y-t.y)*(n.x-e.x)-(e.x-t.x)*(n.y-e.y)}function ep(t,e){return t.x===e.x&&t.y===e.y}function np(t,e,n,r){const i=ip(tp(t,e,n)),s=ip(tp(t,e,r)),o=ip(tp(n,r,t)),a=ip(tp(n,r,e));return i!==s&&o!==a||(!(0!==i||!rp(t,n,e))||(!(0!==s||!rp(t,r,e))||(!(0!==o||!rp(n,t,r))||!(0!==a||!rp(n,e,r)))))}function rp(t,e,n){return e.x<=Math.max(t.x,n.x)&&e.x>=Math.min(t.x,n.x)&&e.y<=Math.max(t.y,n.y)&&e.y>=Math.min(t.y,n.y)}function ip(t){return t>0?1:t<0?-1:0}function sp(t,e){let n=t;do{if(n.i!==t.i&&n.next.i!==t.i&&n.i!==e.i&&n.next.i!==e.i&&np(n,n.next,t,e))return!0;n=n.next}while(n!==t);return!1}function op(t,e){return tp(t.prev,t,t.next)<0?tp(t,e,t.next)>=0&&tp(t,t.prev,e)>=0:tp(t,e,t.prev)<0||tp(t,t.next,e)<0}function ap(t,e){let n=t,r=!1;const i=(t.x+e.x)/2,s=(t.y+e.y)/2;do{n.y>s!=n.next.y>s&&n.next.y!==n.y&&i<(n.next.x-n.x)*(s-n.y)/(n.next.y-n.y)+n.x&&(r=!r),n=n.next}while(n!==t);return r}function lp(t,e){const n=new up(t.i,t.x,t.y),r=new up(e.i,e.x,e.y),i=t.next,s=e.prev;return t.next=e,e.prev=t,n.next=i,i.prev=n,r.next=n,n.prev=r,s.next=r,r.prev=s,r}function cp(t,e,n,r){const i=new up(t,e,n);return r?(i.next=r.next,i.prev=r,r.next.prev=i,r.next=i):(i.prev=i,i.next=i),i}function hp(t){t.next.prev=t.prev,t.prev.next=t.next,t.prevZ&&(t.prevZ.nextZ=t.nextZ),t.nextZ&&(t.nextZ.prevZ=t.prevZ)}function up(t,e,n){this.i=t,this.x=e,this.y=n,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1}function pp(t,e,n,r){let i=0;for(let s=e,o=n-r;s<n;s+=r)i+=(t[o]-t[s])*(t[s+1]+t[o+1]),o=s;return i}const dp={area:function(t){const e=t.length;let n=0;for(let r=e-1,i=0;i<e;r=i++)n+=t[r].x*t[i].y-t[i].x*t[r].y;return.5*n},isClockWise:function(t){return dp.area(t)<0},triangulateShape:function(t,e){const n=[],r=[],i=[];mp(t),fp(n,t);let s=t.length;e.forEach(mp);for(let a=0;a<e.length;a++)r.push(s),s+=e[a].length,fp(n,e[a]);const o=Nu.triangulate(n,r);for(let a=0;a<o.length;a+=3)i.push(o.slice(a,a+3));return i}};function mp(t){const e=t.length;e>2&&t[e-1].equals(t[0])&&t.pop()}function fp(t,e){for(let n=0;n<e.length;n++)t.push(e[n].x),t.push(e[n].y)}exports.ShapeUtils=dp;class gp extends ki{constructor(t,e){super(),this.type="ExtrudeGeometry",this.parameters={shapes:t,options:e},t=Array.isArray(t)?t:[t];const n=this,r=[],i=[];for(let o=0,a=t.length;o<a;o++){s(t[o])}function s(t){const s=[],o=void 0!==e.curveSegments?e.curveSegments:12,a=void 0!==e.steps?e.steps:1;let l=void 0!==e.depth?e.depth:100,c=void 0===e.bevelEnabled||e.bevelEnabled,h=void 0!==e.bevelThickness?e.bevelThickness:6,u=void 0!==e.bevelSize?e.bevelSize:h-2,p=void 0!==e.bevelOffset?e.bevelOffset:0,d=void 0!==e.bevelSegments?e.bevelSegments:3;const m=e.extrudePath,f=void 0!==e.UVGenerator?e.UVGenerator:xp;void 0!==e.amount&&(console.warn("THREE.ExtrudeBufferGeometry: amount has been renamed to depth."),l=e.amount);let g,x,v,y,_,b=!1;m&&(g=m.getSpacedPoints(a),b=!0,c=!1,x=m.computeFrenetFrames(a,!1),v=new Yn,y=new Yn,_=new Yn),c||(d=0,h=0,u=0,p=0);const w=t.extractPoints(o);let M=w.shape;const S=w.holes;if(!dp.isClockWise(M)){M=M.reverse();for(let t=0,e=S.length;t<e;t++){const e=S[t];dp.isClockWise(e)&&(S[t]=e.reverse())}}const T=dp.triangulateShape(M,S),E=M;for(let e=0,n=S.length;e<n;e++){const t=S[e];M=M.concat(t)}function A(t,e,n){return e||console.error("THREE.ExtrudeGeometry: vec does not exist"),e.clone().multiplyScalar(n).add(t)}const L=M.length,R=T.length;function C(t,e,n){let r,i,s;const o=t.x-e.x,a=t.y-e.y,l=n.x-t.x,c=n.y-t.y,h=o*o+a*a,u=o*c-a*l;if(Math.abs(u)>Number.EPSILON){const u=Math.sqrt(h),p=Math.sqrt(l*l+c*c),d=e.x-a/u,m=e.y+o/u,f=((n.x-c/p-d)*c-(n.y+l/p-m)*l)/(o*c-a*l),g=(r=d+o*f-t.x)*r+(i=m+a*f-t.y)*i;if(g<=2)return new On(r,i);s=Math.sqrt(g/2)}else{let t=!1;o>Number.EPSILON?l>Number.EPSILON&&(t=!0):o<-Number.EPSILON?l<-Number.EPSILON&&(t=!0):Math.sign(a)===Math.sign(c)&&(t=!0),t?(r=-a,i=o,s=Math.sqrt(h)):(r=o,i=a,s=Math.sqrt(h/2))}return new On(r/s,i/s)}const P=[];for(let e=0,n=E.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),P[e]=C(E[e],E[r],E[i]);const D=[];let I,B=P.concat();for(let e=0,n=S.length;e<n;e++){const t=S[e];I=[];for(let e=0,n=t.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),I[e]=C(t[e],t[r],t[i]);D.push(I),B=B.concat(I)}for(let e=0;e<d;e++){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,-n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);O(i.x,i.y,-n)}}}const N=u+p;for(let e=0;e<L;e++){const t=c?A(M[e],B[e],N):M[e];b?(y.copy(x.normals[0]).multiplyScalar(t.x),v.copy(x.binormals[0]).multiplyScalar(t.y),_.copy(g[0]).add(y).add(v),O(_.x,_.y,_.z)):O(t.x,t.y,0)}for(let e=1;e<=a;e++)for(let t=0;t<L;t++){const n=c?A(M[t],B[t],N):M[t];b?(y.copy(x.normals[e]).multiplyScalar(n.x),v.copy(x.binormals[e]).multiplyScalar(n.y),_.copy(g[e]).add(y).add(v),O(_.x,_.y,_.z)):O(n.x,n.y,l/a*e)}for(let e=d-1;e>=0;e--){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,l+n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);b?O(i.x,i.y+g[a-1].y,g[a-1].x+n):O(i.x,i.y,l+n)}}}function F(t,e){let n=t.length;for(;--n>=0;){const r=n;let i=n-1;i<0&&(i=t.length-1);for(let t=0,n=a+2*d;t<n;t++){const n=L*t,s=L*(t+1);G(e+r+n,e+i+n,e+i+s,e+r+s)}}}function O(t,e,n){s.push(t),s.push(e),s.push(n)}function z(t,e,i){H(t),H(e),H(i);const s=r.length/3,o=f.generateTopUV(n,r,s-3,s-2,s-1);U(o[0]),U(o[1]),U(o[2])}function G(t,e,i,s){H(t),H(e),H(s),H(e),H(i),H(s);const o=r.length/3,a=f.generateSideWallUV(n,r,o-6,o-3,o-2,o-1);U(a[0]),U(a[1]),U(a[3]),U(a[1]),U(a[2]),U(a[3])}function H(t){r.push(s[3*t+0]),r.push(s[3*t+1]),r.push(s[3*t+2])}function U(t){i.push(t.x),i.push(t.y)}!function(){const t=r.length/3;if(c){let t=0,e=L*t;for(let n=0;n<R;n++){const t=T[n];z(t[2]+e,t[1]+e,t[0]+e)}e=L*(t=a+2*d);for(let n=0;n<R;n++){const t=T[n];z(t[0]+e,t[1]+e,t[2]+e)}}else{for(let t=0;t<R;t++){const e=T[t];z(e[2],e[1],e[0])}for(let t=0;t<R;t++){const e=T[t];z(e[0]+L*a,e[1]+L*a,e[2]+L*a)}}n.addGroup(t,r.length/3-t,0)}(),function(){const t=r.length/3;let e=0;F(E,e),e+=E.length;for(let n=0,r=S.length;n<r;n++){const t=S[n];F(t,e),e+=t.length}n.addGroup(t,r.length/3-t,1)}()}this.setAttribute("position",new Ci(r,3)),this.setAttribute("uv",new Ci(i,2)),this.computeVertexNormals()}toJSON(){const t=ki.prototype.toJSON.call(this);return vp(this.parameters.shapes,this.parameters.options,t)}}exports.ExtrudeGeometry=exports.ExtrudeBufferGeometry=gp;const xp={generateTopUV:function(t,e,n,r,i){const s=e[3*n],o=e[3*n+1],a=e[3*r],l=e[3*r+1],c=e[3*i],h=e[3*i+1];return[new On(s,o),new On(a,l),new On(c,h)]},generateSideWallUV:function(t,e,n,r,i,s){const o=e[3*n],a=e[3*n+1],l=e[3*n+2],c=e[3*r],h=e[3*r+1],u=e[3*r+2],p=e[3*i],d=e[3*i+1],m=e[3*i+2],f=e[3*s],g=e[3*s+1],x=e[3*s+2];return Math.abs(a-h)<.01?[new On(o,1-l),new On(c,1-u),new On(p,1-m),new On(f,1-x)]:[new On(a,1-l),new On(h,1-u),new On(d,1-m),new On(g,1-x)]}};function vp(t,e,n){if(n.shapes=[],Array.isArray(t))for(let r=0,i=t.length;r<i;r++){const e=t[r];n.shapes.push(e.uuid)}else n.shapes.push(t.uuid);return void 0!==e.extrudePath&&(n.options.extrudePath=e.extrudePath.toJSON()),n}class yp extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2;super([-1,n,0,1,n,0,-1,-n,0,1,-n,0,0,-1,n,0,1,n,0,-1,-n,0,1,-n,n,0,-1,n,0,1,-n,0,-1,-n,0,1],[0,11,5,0,5,1,0,1,7,0,7,10,0,10,11,1,5,9,5,11,4,11,10,2,10,7,6,7,1,8,3,9,4,3,4,2,3,2,6,3,6,8,3,8,9,4,9,5,2,4,11,6,2,10,8,6,7,9,8,1],t,e),this.type="IcosahedronGeometry",this.parameters={radius:t,detail:e}}}exports.IcosahedronGeometry=exports.IcosahedronBufferGeometry=yp;class _p extends ki{constructor(t,e=12,n=0,r=2*Math.PI){super(),this.type="LatheGeometry",this.parameters={points:t,segments:e,phiStart:n,phiLength:r},e=Math.floor(e),r=Fn.clamp(r,0,2*Math.PI);const i=[],s=[],o=[],a=1/e,l=new Yn,c=new On;for(let h=0;h<=e;h++){const i=n+h*a*r,u=Math.sin(i),p=Math.cos(i);for(let n=0;n<=t.length-1;n++)l.x=t[n].x*u,l.y=t[n].y,l.z=t[n].x*p,s.push(l.x,l.y,l.z),c.x=h/e,c.y=n/(t.length-1),o.push(c.x,c.y)}for(let h=0;h<e;h++)for(let e=0;e<t.length-1;e++){const n=e+h*t.length,r=n,s=n+t.length,o=n+t.length+1,a=n+1;i.push(r,s,a),i.push(s,o,a)}if(this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2)),this.computeVertexNormals(),r===2*Math.PI){const n=this.attributes.normal.array,r=new Yn,i=new Yn,s=new Yn,o=e*t.length*3;for(let e=0,a=0;e<t.length;e++,a+=3)r.x=n[a+0],r.y=n[a+1],r.z=n[a+2],i.x=n[o+a+0],i.y=n[o+a+1],i.z=n[o+a+2],s.addVectors(r,i).normalize(),n[a+0]=n[o+a+0]=s.x,n[a+1]=n[o+a+1]=s.y,n[a+2]=n[o+a+2]=s.z}}}exports.LatheGeometry=exports.LatheBufferGeometry=_p;class bp extends Lu{constructor(t=1,e=0){super([1,0,0,-1,0,0,0,1,0,0,-1,0,0,0,1,0,0,-1],[0,2,4,0,4,3,0,3,5,0,5,2,1,2,5,1,5,3,1,3,4,1,4,2],t,e),this.type="OctahedronGeometry",this.parameters={radius:t,detail:e}}}function wp(t,e,n){ki.call(this),this.type="ParametricGeometry",this.parameters={func:t,slices:e,stacks:n};const r=[],i=[],s=[],o=[],a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=new Yn;t.length<3&&console.error("THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.");const p=e+1;for(let d=0;d<=n;d++){const r=d/n;for(let n=0;n<=e;n++){const p=n/e;t(p,r,l),i.push(l.x,l.y,l.z),p-1e-5>=0?(t(p-1e-5,r,c),h.subVectors(l,c)):(t(p+1e-5,r,c),h.subVectors(c,l)),r-1e-5>=0?(t(p,r-1e-5,c),u.subVectors(l,c)):(t(p,r+1e-5,c),u.subVectors(c,l)),a.crossVectors(h,u).normalize(),s.push(a.x,a.y,a.z),o.push(p,r)}}for(let d=0;d<n;d++)for(let t=0;t<e;t++){const e=d*p+t,n=d*p+t+1,i=(d+1)*p+t+1,s=(d+1)*p+t;r.push(e,n,s),r.push(n,i,s)}this.setIndex(r),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2))}exports.OctahedronGeometry=exports.OctahedronBufferGeometry=bp,wp.prototype=Object.create(ki.prototype),wp.prototype.constructor=wp;class Mp extends ki{constructor(t=.5,e=1,n=8,r=1,i=0,s=2*Math.PI){super(),this.type="RingGeometry",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:n,phiSegments:r,thetaStart:i,thetaLength:s},n=Math.max(3,n);const o=[],a=[],l=[],c=[];let h=t;const u=(e-t)/(r=Math.max(1,r)),p=new Yn,d=new On;for(let m=0;m<=r;m++){for(let t=0;t<=n;t++){const r=i+t/n*s;p.x=h*Math.cos(r),p.y=h*Math.sin(r),a.push(p.x,p.y,p.z),l.push(0,0,1),d.x=(p.x/e+1)/2,d.y=(p.y/e+1)/2,c.push(d.x,d.y)}h+=u}for(let m=0;m<r;m++){const t=m*(n+1);for(let e=0;e<n;e++){const r=e+t,i=r,s=r+n+1,a=r+n+2,l=r+1;o.push(i,s,l),o.push(s,a,l)}}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.RingGeometry=exports.RingBufferGeometry=Mp;class Sp extends ki{constructor(t,e=12){super(),this.type="ShapeGeometry",this.parameters={shapes:t,curveSegments:e};const n=[],r=[],i=[],s=[];let o=0,a=0;if(!1===Array.isArray(t))l(t);else for(let c=0;c<t.length;c++)l(t[c]),this.addGroup(o,a,c),o+=a,a=0;function l(t){const o=r.length/3,l=t.extractPoints(e);let c=l.shape;const h=l.holes;!1===dp.isClockWise(c)&&(c=c.reverse());for(let e=0,n=h.length;e<n;e++){const t=h[e];!0===dp.isClockWise(t)&&(h[e]=t.reverse())}const u=dp.triangulateShape(c,h);for(let e=0,n=h.length;e<n;e++){const t=h[e];c=c.concat(t)}for(let e=0,n=c.length;e<n;e++){const t=c[e];r.push(t.x,t.y,0),i.push(0,0,1),s.push(t.x,t.y)}for(let e=0,r=u.length;e<r;e++){const t=u[e],r=t[0]+o,i=t[1]+o,s=t[2]+o;n.push(r,i,s),a+=3}}this.setIndex(n),this.setAttribute("position",new Ci(r,3)),this.setAttribute("normal",new Ci(i,3)),this.setAttribute("uv",new Ci(s,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return Tp(this.parameters.shapes,t)}}function Tp(t,e){if(e.shapes=[],Array.isArray(t))for(let n=0,r=t.length;n<r;n++){const r=t[n];e.shapes.push(r.uuid)}else e.shapes.push(t.uuid);return e}exports.ShapeGeometry=exports.ShapeBufferGeometry=Sp;class Ep extends ki{constructor(t=1,e=8,n=6,r=0,i=2*Math.PI,s=0,o=Math.PI){super(),this.type="SphereGeometry",this.parameters={radius:t,widthSegments:e,heightSegments:n,phiStart:r,phiLength:i,thetaStart:s,thetaLength:o},e=Math.max(3,Math.floor(e)),n=Math.max(2,Math.floor(n));const a=Math.min(s+o,Math.PI);let l=0;const c=[],h=new Yn,u=new Yn,p=[],d=[],m=[],f=[];for(let g=0;g<=n;g++){const p=[],x=g/n;let v=0;0==g&&0==s?v=.5/e:g==n&&a==Math.PI&&(v=-.5/e);for(let n=0;n<=e;n++){const a=n/e;h.x=-t*Math.cos(r+a*i)*Math.sin(s+x*o),h.y=t*Math.cos(s+x*o),h.z=t*Math.sin(r+a*i)*Math.sin(s+x*o),d.push(h.x,h.y,h.z),u.copy(h).normalize(),m.push(u.x,u.y,u.z),f.push(a+v,1-x),p.push(l++)}c.push(p)}for(let g=0;g<n;g++)for(let t=0;t<e;t++){const e=c[g][t+1],r=c[g][t],i=c[g+1][t],o=c[g+1][t+1];(0!==g||s>0)&&p.push(e,r,o),(g!==n-1||a<Math.PI)&&p.push(r,i,o)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.SphereGeometry=exports.SphereBufferGeometry=Ep;class Ap extends Lu{constructor(t=1,e=0){super([1,1,1,-1,-1,1,-1,1,-1,1,-1,-1],[2,1,0,0,3,2,1,3,0,2,3,1],t,e),this.type="TetrahedronGeometry",this.parameters={radius:t,detail:e}}}exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=Ap;class Lp extends gp{constructor(t,e={}){const n=e.font;if(!n||!n.isFont)return console.error("THREE.TextGeometry: font parameter is not an instance of THREE.Font."),new ki;const r=n.generateShapes(t,e.size);e.depth=void 0!==e.height?e.height:50,void 0===e.bevelThickness&&(e.bevelThickness=10),void 0===e.bevelSize&&(e.bevelSize=8),void 0===e.bevelEnabled&&(e.bevelEnabled=!1),super(r,e),this.type="TextGeometry"}}exports.TextGeometry=exports.TextBufferGeometry=Lp;class Rp extends ki{constructor(t=1,e=.4,n=8,r=6,i=2*Math.PI){super(),this.type="TorusGeometry",this.parameters={radius:t,tube:e,radialSegments:n,tubularSegments:r,arc:i},n=Math.floor(n),r=Math.floor(r);const s=[],o=[],a=[],l=[],c=new Yn,h=new Yn,u=new Yn;for(let p=0;p<=n;p++)for(let s=0;s<=r;s++){const d=s/r*i,m=p/n*Math.PI*2;h.x=(t+e*Math.cos(m))*Math.cos(d),h.y=(t+e*Math.cos(m))*Math.sin(d),h.z=e*Math.sin(m),o.push(h.x,h.y,h.z),c.x=t*Math.cos(d),c.y=t*Math.sin(d),u.subVectors(h,c).normalize(),a.push(u.x,u.y,u.z),l.push(s/r),l.push(p/n)}for(let p=1;p<=n;p++)for(let t=1;t<=r;t++){const e=(r+1)*p+t-1,n=(r+1)*(p-1)+t-1,i=(r+1)*(p-1)+t,o=(r+1)*p+t;s.push(e,n,o),s.push(n,i,o)}this.setIndex(s),this.setAttribute("position",new Ci(o,3)),this.setAttribute("normal",new Ci(a,3)),this.setAttribute("uv",new Ci(l,2))}}exports.TorusGeometry=exports.TorusBufferGeometry=Rp;class Cp extends ki{constructor(t=1,e=.4,n=64,r=8,i=2,s=3){super(),this.type="TorusKnotGeometry",this.parameters={radius:t,tube:e,tubularSegments:n,radialSegments:r,p:i,q:s},n=Math.floor(n),r=Math.floor(r);const o=[],a=[],l=[],c=[],h=new Yn,u=new Yn,p=new Yn,d=new Yn,m=new Yn,f=new Yn,g=new Yn;for(let v=0;v<=n;++v){const o=v/n*i*Math.PI*2;x(o,i,s,t,p),x(o+.01,i,s,t,d),f.subVectors(d,p),g.addVectors(d,p),m.crossVectors(f,g),g.crossVectors(m,f),m.normalize(),g.normalize();for(let t=0;t<=r;++t){const i=t/r*Math.PI*2,s=-e*Math.cos(i),o=e*Math.sin(i);h.x=p.x+(s*g.x+o*m.x),h.y=p.y+(s*g.y+o*m.y),h.z=p.z+(s*g.z+o*m.z),a.push(h.x,h.y,h.z),u.subVectors(h,p).normalize(),l.push(u.x,u.y,u.z),c.push(v/n),c.push(t/r)}}for(let v=1;v<=n;v++)for(let t=1;t<=r;t++){const e=(r+1)*(v-1)+(t-1),n=(r+1)*v+(t-1),i=(r+1)*v+t,s=(r+1)*(v-1)+t;o.push(e,n,s),o.push(n,i,s)}function x(t,e,n,r,i){const s=Math.cos(t),o=Math.sin(t),a=n/e*t,l=Math.cos(a);i.x=r*(2+l)*.5*s,i.y=r*(2+l)*o*.5,i.z=r*Math.sin(a)*.5}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=Cp;class Pp extends ki{constructor(t,e=64,n=1,r=8,i=!1){super(),this.type="TubeGeometry",this.parameters={path:t,tubularSegments:e,radius:n,radialSegments:r,closed:i};const s=t.computeFrenetFrames(e,i);this.tangents=s.tangents,this.normals=s.normals,this.binormals=s.binormals;const o=new Yn,a=new Yn,l=new On;let c=new Yn;const h=[],u=[],p=[],d=[];function m(i){c=t.getPointAt(i/e,c);const l=s.normals[i],p=s.binormals[i];for(let t=0;t<=r;t++){const e=t/r*Math.PI*2,i=Math.sin(e),s=-Math.cos(e);a.x=s*l.x+i*p.x,a.y=s*l.y+i*p.y,a.z=s*l.z+i*p.z,a.normalize(),u.push(a.x,a.y,a.z),o.x=c.x+n*a.x,o.y=c.y+n*a.y,o.z=c.z+n*a.z,h.push(o.x,o.y,o.z)}}!function(){for(let t=0;t<e;t++)m(t);m(!1===i?e:0),function(){for(let t=0;t<=e;t++)for(let n=0;n<=r;n++)l.x=t/e,l.y=n/r,p.push(l.x,l.y)}(),function(){for(let t=1;t<=e;t++)for(let e=1;e<=r;e++){const n=(r+1)*(t-1)+(e-1),i=(r+1)*t+(e-1),s=(r+1)*t+e,o=(r+1)*(t-1)+e;d.push(n,i,o),d.push(i,s,o)}}()}(),this.setIndex(d),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return t.path=this.parameters.path.toJSON(),t}}exports.TubeGeometry=exports.TubeBufferGeometry=Pp;class Dp extends ki{constructor(t){if(super(),this.type="WireframeGeometry",!0===t.isGeometry)return void console.error("THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const e=[],n=[0,0],r={},i=new Yn;if(null!==t.index){const s=t.attributes.position,o=t.index;let a=t.groups;0===a.length&&(a=[{start:0,count:o.count,materialIndex:0}]);for(let t=0,e=a.length;t<e;++t){const e=a[t],i=e.start;for(let t=i,s=i+e.count;t<s;t+=3)for(let e=0;e<3;e++){const i=o.getX(t+e),s=o.getX(t+(e+1)%3);n[0]=Math.min(i,s),n[1]=Math.max(i,s);const a=n[0]+","+n[1];void 0===r[a]&&(r[a]={index1:n[0],index2:n[1]})}}for(const t in r){const n=r[t];i.fromBufferAttribute(s,n.index1),e.push(i.x,i.y,i.z),i.fromBufferAttribute(s,n.index2),e.push(i.x,i.y,i.z)}}else{const n=t.attributes.position;for(let t=0,r=n.count/3;t<r;t++)for(let s=0;s<3;s++){const r=3*t+s;i.fromBufferAttribute(n,r),e.push(i.x,i.y,i.z);const o=3*t+(s+1)%3;i.fromBufferAttribute(n,o),e.push(i.x,i.y,i.z)}}this.setAttribute("position",new Ci(e,3))}}exports.WireframeGeometry=Dp;var Ip=Object.freeze({__proto__:null,BoxGeometry:cs,BoxBufferGeometry:cs,CircleGeometry:Tu,CircleBufferGeometry:Tu,ConeGeometry:Au,ConeBufferGeometry:Au,CylinderGeometry:Eu,CylinderBufferGeometry:Eu,DodecahedronGeometry:Ru,DodecahedronBufferGeometry:Ru,EdgesGeometry:Bu,ExtrudeGeometry:gp,ExtrudeBufferGeometry:gp,IcosahedronGeometry:yp,IcosahedronBufferGeometry:yp,LatheGeometry:_p,LatheBufferGeometry:_p,OctahedronGeometry:bp,OctahedronBufferGeometry:bp,ParametricGeometry:wp,ParametricBufferGeometry:wp,PlaneGeometry:Rs,PlaneBufferGeometry:Rs,PolyhedronGeometry:Lu,PolyhedronBufferGeometry:Lu,RingGeometry:Mp,RingBufferGeometry:Mp,ShapeGeometry:Sp,ShapeBufferGeometry:Sp,SphereGeometry:Ep,SphereBufferGeometry:Ep,TetrahedronGeometry:Ap,TetrahedronBufferGeometry:Ap,TextGeometry:Lp,TextBufferGeometry:Lp,TorusGeometry:Rp,TorusBufferGeometry:Rp,TorusKnotGeometry:Cp,TorusKnotBufferGeometry:Cp,TubeGeometry:Pp,TubeBufferGeometry:Pp,WireframeGeometry:Dp});class Bp extends hi{constructor(t){super(),this.type="ShadowMaterial",this.color=new xi(0),this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this}}exports.ShadowMaterial=Bp,Bp.prototype.isShadowMaterial=!0;class Np extends fs{constructor(t){super(t),this.type="RawShaderMaterial"}}function Fp(t){hi.call(this),this.defines={STANDARD:""},this.type="MeshStandardMaterial",this.color=new xi(16777215),this.roughness=1,this.metalness=0,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapIntensity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.vertexTangents=!1,this.setValues(t)}function Op(t){Fp.call(this),this.defines={STANDARD:"",PHYSICAL:""},this.type="MeshPhysicalMaterial",this.clearcoat=0,this.clearcoatMap=null,this.clearcoatRoughness=0,this.clearcoatRoughnessMap=null,this.clearcoatNormalScale=new On(1,1),this.clearcoatNormalMap=null,this.reflectivity=.5,Object.defineProperty(this,"ior",{get:function(){return(1+.4*this.reflectivity)/(1-.4*this.reflectivity)},set:function(t){this.reflectivity=Fn.clamp(2.5*(t-1)/(t+1),0,1)}}),this.sheen=null,this.transmission=0,this.transmissionMap=null,this.setValues(t)}exports.RawShaderMaterial=Np,Np.prototype.isRawShaderMaterial=!0,Fp.prototype=Object.create(hi.prototype),Fp.prototype.constructor=Fp,Fp.prototype.isMeshStandardMaterial=!0,Fp.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.defines={STANDARD:""},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapIntensity=t.envMapIntensity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this.vertexTangents=t.vertexTangents,this},Op.prototype=Object.create(Fp.prototype),Op.prototype.constructor=Op,Op.prototype.isMeshPhysicalMaterial=!0,Op.prototype.copy=function(t){return Fp.prototype.copy.call(this,t),this.defines={STANDARD:"",PHYSICAL:""},this.clearcoat=t.clearcoat,this.clearcoatMap=t.clearcoatMap,this.clearcoatRoughness=t.clearcoatRoughness,this.clearcoatRoughnessMap=t.clearcoatRoughnessMap,this.clearcoatNormalMap=t.clearcoatNormalMap,this.clearcoatNormalScale.copy(t.clearcoatNormalScale),this.reflectivity=t.reflectivity,t.sheen?this.sheen=(this.sheen||new xi).copy(t.sheen):this.sheen=null,this.transmission=t.transmission,this.transmissionMap=t.transmissionMap,this};class zp extends hi{constructor(t){super(),this.type="MeshPhongMaterial",this.color=new xi(16777215),this.specular=new xi(1118481),this.shininess=30,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.specular.copy(t.specular),this.shininess=t.shininess,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshPhongMaterial=zp,zp.prototype.isMeshPhongMaterial=!0;class Gp extends hi{constructor(t){super(),this.defines={TOON:""},this.type="MeshToonMaterial",this.color=new xi(16777215),this.map=null,this.gradientMap=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.gradientMap=t.gradientMap,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshToonMaterial=Gp,Gp.prototype.isMeshToonMaterial=!0;class Hp extends hi{constructor(t){super(),this.type="MeshNormalMaterial",this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshNormalMaterial=Hp,Hp.prototype.isMeshNormalMaterial=!0;class Up extends hi{constructor(t){super(),this.type="MeshLambertMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshLambertMaterial=Up,Up.prototype.isMeshLambertMaterial=!0;class kp extends hi{constructor(t){super(),this.defines={MATCAP:""},this.type="MeshMatcapMaterial",this.color=new xi(16777215),this.matcap=null,this.map=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.defines={MATCAP:""},this.color.copy(t.color),this.matcap=t.matcap,this.map=t.map,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshMatcapMaterial=kp,kp.prototype.isMeshMatcapMaterial=!0;class Vp extends ru{constructor(t){super(),this.type="LineDashedMaterial",this.scale=1,this.dashSize=3,this.gapSize=1,this.setValues(t)}copy(t){return super.copy(t),this.scale=t.scale,this.dashSize=t.dashSize,this.gapSize=t.gapSize,this}}exports.LineDashedMaterial=Vp,Vp.prototype.isLineDashedMaterial=!0;var Wp=Object.freeze({__proto__:null,ShadowMaterial:Bp,SpriteMaterial:Mh,RawShaderMaterial:Np,ShaderMaterial:fs,PointsMaterial:mu,MeshPhysicalMaterial:Op,MeshStandardMaterial:Fp,MeshPhongMaterial:zp,MeshToonMaterial:Gp,MeshNormalMaterial:Hp,MeshLambertMaterial:Up,MeshDepthMaterial:eh,MeshDistanceMaterial:nh,MeshBasicMaterial:vi,MeshMatcapMaterial:kp,LineDashedMaterial:Vp,LineBasicMaterial:ru,Material:hi});const jp={arraySlice:function(t,e,n){return jp.isTypedArray(t)?new t.constructor(t.subarray(e,void 0!==n?n:t.length)):t.slice(e,n)},convertArray:function(t,e,n){return!t||!n&&t.constructor===e?t:"number"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)},isTypedArray:function(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)},getKeyframeOrder:function(t){const e=t.length,n=new Array(e);for(let r=0;r!==e;++r)n[r]=r;return n.sort(function(e,n){return t[e]-t[n]}),n},sortedArray:function(t,e,n){const r=t.length,i=new t.constructor(r);for(let s=0,o=0;o!==r;++s){const r=n[s]*e;for(let n=0;n!==e;++n)i[o++]=t[r+n]}return i},flattenJSON:function(t,e,n,r){let i=1,s=t[0];for(;void 0!==s&&void 0===s[r];)s=t[i++];if(void 0===s)return;let o=s[r];if(void 0!==o)if(Array.isArray(o))do{void 0!==(o=s[r])&&(e.push(s.time),n.push.apply(n,o)),s=t[i++]}while(void 0!==s);else if(void 0!==o.toArray)do{void 0!==(o=s[r])&&(e.push(s.time),o.toArray(n,n.length)),s=t[i++]}while(void 0!==s);else do{void 0!==(o=s[r])&&(e.push(s.time),n.push(o)),s=t[i++]}while(void 0!==s)},subclip:function(t,e,n,r,i=30){const s=t.clone();s.name=e;const o=[];for(let l=0;l<s.tracks.length;++l){const t=s.tracks[l],e=t.getValueSize(),a=[],c=[];for(let s=0;s<t.times.length;++s){const o=t.times[s]*i;if(!(o<n||o>=r)){a.push(t.times[s]);for(let n=0;n<e;++n)c.push(t.values[s*e+n])}}0!==a.length&&(t.times=jp.convertArray(a,t.times.constructor),t.values=jp.convertArray(c,t.values.constructor),o.push(t))}s.tracks=o;let a=1/0;for(let l=0;l<s.tracks.length;++l)a>s.tracks[l].times[0]&&(a=s.tracks[l].times[0]);for(let l=0;l<s.tracks.length;++l)s.tracks[l].shift(-1*a);return s.resetDuration(),s},makeClipAdditive:function(t,e=0,n=t,r=30){r<=0&&(r=30);const i=n.tracks.length,s=e/r;for(let o=0;o<i;++o){const e=n.tracks[o],r=e.ValueTypeName;if("bool"===r||"string"===r)continue;const i=t.tracks.find(function(t){return t.name===e.name&&t.ValueTypeName===r});if(void 0===i)continue;let a=0;const l=e.getValueSize();e.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(a=l/3);let c=0;const h=i.getValueSize();i.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(c=h/3);const u=e.times.length-1;let p;if(s<=e.times[0]){const t=a,n=l-a;p=jp.arraySlice(e.values,t,n)}else if(s>=e.times[u]){const t=u*l+a,n=t+l-a;p=jp.arraySlice(e.values,t,n)}else{const t=e.createInterpolant(),n=a,r=l-a;t.evaluate(s),p=jp.arraySlice(t.resultBuffer,n,r)}if("quaternion"===r){(new Xn).fromArray(p).normalize().conjugate().toArray(p)}const d=i.times.length;for(let t=0;t<d;++t){const e=t*h+c;if("quaternion"===r)Xn.multiplyQuaternionsFlat(i.values,e,p,0,i.values,e);else{const t=h-2*c;for(let n=0;n<t;++n)i.values[e+n]-=p[n]}}}return t.blendMode=Ve,t}};function qp(t,e,n,r){this.parameterPositions=t,this._cachedIndex=0,this.resultBuffer=void 0!==r?r:new e.constructor(n),this.sampleValues=e,this.valueSize=n}function Xp(t,e,n,r){qp.call(this,t,e,n,r),this._weightPrev=-0,this._offsetPrev=-0,this._weightNext=-0,this._offsetNext=-0}function Yp(t,e,n,r){qp.call(this,t,e,n,r)}function Zp(t,e,n,r){qp.call(this,t,e,n,r)}exports.AnimationUtils=jp,Object.assign(qp.prototype,{evaluate:function(t){const e=this.parameterPositions;let n=this._cachedIndex,r=e[n],i=e[n-1];t:{e:{let s;n:{r:if(!(t<r)){for(let s=n+2;;){if(void 0===r){if(t<i)break r;return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,t,i)}if(n===s)break;if(i=r,t<(r=e[++n]))break e}s=e.length;break n}if(t>=i)break t;{const o=e[1];t<o&&(n=2,i=o);for(let s=n-2;;){if(void 0===i)return this._cachedIndex=0,this.beforeStart_(0,t,r);if(n===s)break;if(r=i,t>=(i=e[--n-1]))break e}s=n,n=0}}for(;n<s;){const r=n+s>>>1;t<e[r]?s=r:n=r+1}if(r=e[n],void 0===(i=e[n-1]))return this._cachedIndex=0,this.beforeStart_(0,t,r);if(void 0===r)return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,i,t)}this._cachedIndex=n,this.intervalChanged_(n,i,r)}return this.interpolate_(n,i,t,r)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||this.DefaultSettings_},copySampleValue_:function(t){const e=this.resultBuffer,n=this.sampleValues,r=this.valueSize,i=t*r;for(let s=0;s!==r;++s)e[s]=n[i+s];return e},interpolate_:function(){throw new Error("call to abstract method")},intervalChanged_:function(){}}),Object.assign(qp.prototype,{beforeStart_:qp.prototype.copySampleValue_,afterEnd_:qp.prototype.copySampleValue_}),Xp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Xp,DefaultSettings_:{endingStart:Ge,endingEnd:Ge},intervalChanged_:function(t,e,n){const r=this.parameterPositions;let i=t-2,s=t+1,o=r[i],a=r[s];if(void 0===o)switch(this.getSettings_().endingStart){case He:i=t,o=2*e-n;break;case Ue:o=e+r[i=r.length-2]-r[i+1];break;default:i=t,o=n}if(void 0===a)switch(this.getSettings_().endingEnd){case He:s=t,a=2*n-e;break;case Ue:s=1,a=n+r[1]-r[0];break;default:s=t-1,a=e}const l=.5*(n-e),c=this.valueSize;this._weightPrev=l/(e-o),this._weightNext=l/(a-n),this._offsetPrev=i*c,this._offsetNext=s*c},interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=this._offsetPrev,h=this._offsetNext,u=this._weightPrev,p=this._weightNext,d=(n-e)/(r-e),m=d*d,f=m*d,g=-u*f+2*u*m-u*d,x=(1+u)*f+(-1.5-2*u)*m+(-.5+u)*d+1,v=(-1-p)*f+(1.5+p)*m+.5*d,y=p*f-p*m;for(let _=0;_!==o;++_)i[_]=g*s[c+_]+x*s[l+_]+v*s[a+_]+y*s[h+_];return i}}),Yp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Yp,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=(n-e)/(r-e),h=1-c;for(let u=0;u!==o;++u)i[u]=s[l+u]*h+s[a+u]*c;return i}}),Zp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Zp,interpolate_:function(t){return this.copySampleValue_(t-1)}});class Jp{constructor(t,e,n,r){if(void 0===t)throw new Error("THREE.KeyframeTrack: track name is undefined");if(void 0===e||0===e.length)throw new Error("THREE.KeyframeTrack: no keyframes in track named "+t);this.name=t,this.times=jp.convertArray(e,this.TimeBufferType),this.values=jp.convertArray(n,this.ValueBufferType),this.setInterpolation(r||this.DefaultInterpolation)}static toJSON(t){const e=t.constructor;let n;if(e.toJSON!==this.toJSON)n=e.toJSON(t);else{n={name:t.name,times:jp.convertArray(t.times,Array),values:jp.convertArray(t.values,Array)};const e=t.getInterpolation();e!==t.DefaultInterpolation&&(n.interpolation=e)}return n.type=t.ValueTypeName,n}InterpolantFactoryMethodDiscrete(t){return new Zp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodLinear(t){return new Yp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodSmooth(t){return new Xp(this.times,this.values,this.getValueSize(),t)}setInterpolation(t){let e;switch(t){case Fe:e=this.InterpolantFactoryMethodDiscrete;break;case Oe:e=this.InterpolantFactoryMethodLinear;break;case ze:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){const e="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(e);this.setInterpolation(this.DefaultInterpolation)}return console.warn("THREE.KeyframeTrack:",e),this}return this.createInterpolant=e,this}getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return Fe;case this.InterpolantFactoryMethodLinear:return Oe;case this.InterpolantFactoryMethodSmooth:return ze}}getValueSize(){return this.values.length/this.times.length}shift(t){if(0!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]+=t}return this}scale(t){if(1!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]*=t}return this}trim(t,e){const n=this.times,r=n.length;let i=0,s=r-1;for(;i!==r&&n[i]<t;)++i;for(;-1!==s&&n[s]>e;)--s;if(++s,0!==i||s!==r){i>=s&&(i=(s=Math.max(s,1))-1);const t=this.getValueSize();this.times=jp.arraySlice(n,i,s),this.values=jp.arraySlice(this.values,i*t,s*t)}return this}validate(){let t=!0;const e=this.getValueSize();e-Math.floor(e)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),t=!1);const n=this.times,r=this.values,i=n.length;0===i&&(console.error("THREE.KeyframeTrack: Track is empty.",this),t=!1);let s=null;for(let o=0;o!==i;o++){const e=n[o];if("number"==typeof e&&isNaN(e)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,o,e),t=!1;break}if(null!==s&&s>e){console.error("THREE.KeyframeTrack: Out of order keys.",this,o,e,s),t=!1;break}s=e}if(void 0!==r&&jp.isTypedArray(r))for(let o=0,a=r.length;o!==a;++o){const e=r[o];if(isNaN(e)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,o,e),t=!1;break}}return t}optimize(){const t=jp.arraySlice(this.times),e=jp.arraySlice(this.values),n=this.getValueSize(),r=this.getInterpolation()===ze,i=t.length-1;let s=1;for(let o=1;o<i;++o){let i=!1;const a=t[o];if(a!==t[o+1]&&(1!==o||a!==t[0]))if(r)i=!0;else{const t=o*n,r=t-n,s=t+n;for(let o=0;o!==n;++o){const n=e[t+o];if(n!==e[r+o]||n!==e[s+o]){i=!0;break}}}if(i){if(o!==s){t[s]=t[o];const r=o*n,i=s*n;for(let t=0;t!==n;++t)e[i+t]=e[r+t]}++s}}if(i>0){t[s]=t[i];for(let t=i*n,r=s*n,o=0;o!==n;++o)e[r+o]=e[t+o];++s}return s!==t.length?(this.times=jp.arraySlice(t,0,s),this.values=jp.arraySlice(e,0,s*n)):(this.times=t,this.values=e),this}clone(){const t=jp.arraySlice(this.times,0),e=jp.arraySlice(this.values,0),n=new(0,this.constructor)(this.name,t,e);return n.createInterpolant=this.createInterpolant,n}}exports.KeyframeTrack=Jp,Jp.prototype.TimeBufferType=Float32Array,Jp.prototype.ValueBufferType=Float32Array,Jp.prototype.DefaultInterpolation=Oe;class Qp extends Jp{}exports.BooleanKeyframeTrack=Qp,Qp.prototype.ValueTypeName="bool",Qp.prototype.ValueBufferType=Array,Qp.prototype.DefaultInterpolation=Fe,Qp.prototype.InterpolantFactoryMethodLinear=void 0,Qp.prototype.InterpolantFactoryMethodSmooth=void 0;class Kp extends Jp{}exports.ColorKeyframeTrack=Kp,Kp.prototype.ValueTypeName="color";class $p extends Jp{}function td(t,e,n,r){qp.call(this,t,e,n,r)}exports.NumberKeyframeTrack=$p,$p.prototype.ValueTypeName="number",td.prototype=Object.assign(Object.create(qp.prototype),{constructor:td,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=(n-e)/(r-e);let l=t*o;for(let c=l+o;l!==c;l+=4)Xn.slerpFlat(i,0,s,l-o,s,l,a);return i}});class ed extends Jp{InterpolantFactoryMethodLinear(t){return new td(this.times,this.values,this.getValueSize(),t)}}exports.QuaternionKeyframeTrack=ed,ed.prototype.ValueTypeName="quaternion",ed.prototype.DefaultInterpolation=Oe,ed.prototype.InterpolantFactoryMethodSmooth=void 0;class nd extends Jp{}exports.StringKeyframeTrack=nd,nd.prototype.ValueTypeName="string",nd.prototype.ValueBufferType=Array,nd.prototype.DefaultInterpolation=Fe,nd.prototype.InterpolantFactoryMethodLinear=void 0,nd.prototype.InterpolantFactoryMethodSmooth=void 0;class rd extends Jp{}exports.VectorKeyframeTrack=rd,rd.prototype.ValueTypeName="vector";class id{constructor(t,e=-1,n,r=ke){this.name=t,this.tracks=n,this.duration=e,this.blendMode=r,this.uuid=Fn.generateUUID(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],n=t.tracks,r=1/(t.fps||1);for(let s=0,o=n.length;s!==o;++s)e.push(od(n[s]).scale(r));const i=new this(t.name,t.duration,e,t.blendMode);return i.uuid=t.uuid,i}static toJSON(t){const e=[],n=t.tracks,r={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let i=0,s=n.length;i!==s;++i)e.push(Jp.toJSON(n[i]));return r}static CreateFromMorphTargetSequence(t,e,n,r){const i=e.length,s=[];for(let o=0;o<i;o++){let t=[],a=[];t.push((o+i-1)%i,o,(o+1)%i),a.push(0,1,0);const l=jp.getKeyframeOrder(t);t=jp.sortedArray(t,1,l),a=jp.sortedArray(a,1,l),r||0!==t[0]||(t.push(i),a.push(a[0])),s.push(new $p(".morphTargetInfluences["+e[o].name+"]",t,a).scale(1/n))}return new this(t,-1,s)}static findByName(t,e){let n=t;if(!Array.isArray(t)){const e=t;n=e.geometry&&e.geometry.animations||e.animations}for(let r=0;r<n.length;r++)if(n[r].name===e)return n[r];return null}static CreateClipsFromMorphTargetSequences(t,e,n){const r={},i=/^([\w-]*?)([\d]+)$/;for(let o=0,a=t.length;o<a;o++){const e=t[o],n=e.name.match(i);if(n&&n.length>1){const t=n[1];let i=r[t];i||(r[t]=i=[]),i.push(e)}}const s=[];for(const o in r)s.push(this.CreateFromMorphTargetSequence(o,r[o],e,n));return s}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const n=function(t,e,n,r,i){if(0!==n.length){const s=[],o=[];jp.flattenJSON(n,s,o,r),0!==s.length&&i.push(new t(e,s,o))}},r=[],i=t.name||"default",s=t.fps||30,o=t.blendMode;let a=t.length||-1;const l=t.hierarchy||[];for(let c=0;c<l.length;c++){const t=l[c].keys;if(t&&0!==t.length)if(t[0].morphTargets){const e={};let n;for(n=0;n<t.length;n++)if(t[n].morphTargets)for(let r=0;r<t[n].morphTargets.length;r++)e[t[n].morphTargets[r]]=-1;for(const i in e){const e=[],s=[];for(let r=0;r!==t[n].morphTargets.length;++r){const r=t[n];e.push(r.time),s.push(r.morphTarget===i?1:0)}r.push(new $p(".morphTargetInfluence["+i+"]",e,s))}a=e.length*(s||1)}else{const i=".bones["+e[c].name+"]";n(rd,i+".position",t,"pos",r),n(ed,i+".quaternion",t,"rot",r),n(rd,i+".scale",t,"scl",r)}}return 0===r.length?null:new this(i,a,r,o)}resetDuration(){let t=0;for(let e=0,n=this.tracks.length;e!==n;++e){const n=this.tracks[e];t=Math.max(t,n.times[n.times.length-1])}return this.duration=t,this}trim(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this}validate(){let t=!0;for(let e=0;e<this.tracks.length;e++)t=t&&this.tracks[e].validate();return t}optimize(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}clone(){const t=[];for(let e=0;e<this.tracks.length;e++)t.push(this.tracks[e].clone());return new this.constructor(this.name,this.duration,t,this.blendMode)}toJSON(){return this.constructor.toJSON(this)}}function sd(t){switch(t.toLowerCase()){case"scalar":case"double":case"float":case"number":case"integer":return $p;case"vector":case"vector2":case"vector3":case"vector4":return rd;case"color":return Kp;case"quaternion":return ed;case"bool":case"boolean":return Qp;case"string":return nd}throw new Error("THREE.KeyframeTrack: Unsupported typeName: "+t)}function od(t){if(void 0===t.type)throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");const e=sd(t.type);if(void 0===t.times){const e=[],n=[];jp.flattenJSON(t.keys,e,n,"value"),t.times=e,t.values=n}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)}exports.AnimationClip=id;const ad={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}};function ld(t,e,n){const r=this;let i=!1,s=0,o=0,a=void 0;const l=[];this.onStart=void 0,this.onLoad=t,this.onProgress=e,this.onError=n,this.itemStart=function(t){o++,!1===i&&void 0!==r.onStart&&r.onStart(t,s,o),i=!0},this.itemEnd=function(t){s++,void 0!==r.onProgress&&r.onProgress(t,s,o),s===o&&(i=!1,void 0!==r.onLoad&&r.onLoad())},this.itemError=function(t){void 0!==r.onError&&r.onError(t)},this.resolveURL=function(t){return a?a(t):t},this.setURLModifier=function(t){return a=t,this},this.addHandler=function(t,e){return l.push(t,e),this},this.removeHandler=function(t){const e=l.indexOf(t);return-1!==e&&l.splice(e,2),this},this.getHandler=function(t){for(let e=0,n=l.length;e<n;e+=2){const n=l[e],r=l[e+1];if(n.global&&(n.lastIndex=0),n.test(t))return r}return null}}exports.Cache=ad;const cd=new ld;function hd(t){this.manager=void 0!==t?t:cd,this.crossOrigin="anonymous",this.withCredentials=!1,this.path="",this.resourcePath="",this.requestHeader={}}exports.DefaultLoadingManager=cd,Object.assign(hd.prototype,{load:function(){},loadAsync:function(t,e){const n=this;return new Promise(function(r,i){n.load(t,r,e,i)})},parse:function(){},setCrossOrigin:function(t){return this.crossOrigin=t,this},setWithCredentials:function(t){return this.withCredentials=t,this},setPath:function(t){return this.path=t,this},setResourcePath:function(t){return this.resourcePath=t,this},setRequestHeader:function(t){return this.requestHeader=t,this}});const ud={};function pd(t){hd.call(this,t)}pd.prototype=Object.assign(Object.create(hd.prototype),{constructor:pd,load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;if(void 0!==ud[t])return void ud[t].push({onLoad:e,onProgress:n,onError:r});const o=t.match(/^data:(.*?)(;base64)?,(.*)$/);let a;if(o){const n=o[1],s=!!o[2];let a=o[3];a=decodeURIComponent(a),s&&(a=atob(a));try{let s;const o=(this.responseType||"").toLowerCase();switch(o){case"arraybuffer":case"blob":const t=new Uint8Array(a.length);for(let n=0;n<a.length;n++)t[n]=a.charCodeAt(n);s="blob"===o?new Blob([t.buffer],{type:n}):t.buffer;break;case"document":const e=new DOMParser;s=e.parseFromString(a,n);break;case"json":s=JSON.parse(a);break;default:s=a}setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0)}catch(l){setTimeout(function(){r&&r(l),i.manager.itemError(t),i.manager.itemEnd(t)},0)}}else{ud[t]=[],ud[t].push({onLoad:e,onProgress:n,onError:r}),(a=new XMLHttpRequest).open("GET",t,!0),a.addEventListener("load",function(e){const n=this.response,r=ud[t];if(delete ud[t],200===this.status||0===this.status){0===this.status&&console.warn("THREE.FileLoader: HTTP Status 0 received."),ad.add(t,n);for(let t=0,e=r.length;t<e;t++){const e=r[t];e.onLoad&&e.onLoad(n)}i.manager.itemEnd(t)}else{for(let t=0,n=r.length;t<n;t++){const n=r[t];n.onError&&n.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)}},!1),a.addEventListener("progress",function(e){const n=ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onProgress&&r.onProgress(e)}},!1),a.addEventListener("error",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),a.addEventListener("abort",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),void 0!==this.responseType&&(a.responseType=this.responseType),void 0!==this.withCredentials&&(a.withCredentials=this.withCredentials),a.overrideMimeType&&a.overrideMimeType(void 0!==this.mimeType?this.mimeType:"text/plain");for(const t in this.requestHeader)a.setRequestHeader(t,this.requestHeader[t]);a.send(null)}return i.manager.itemStart(t),a},setResponseType:function(t){return this.responseType=t,this},setMimeType:function(t){return this.mimeType=t,this}});class dd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=[];for(let n=0;n<t.length;n++){const r=id.parse(t[n]);e.push(r)}return e}}function md(t){hd.call(this,t)}exports.AnimationLoader=dd,md.prototype=Object.assign(Object.create(hd.prototype),{constructor:md,load:function(t,e,n,r){const i=this,s=[],o=new wu,a=new pd(this.manager);a.setPath(this.path),a.setResponseType("arraybuffer"),a.setRequestHeader(this.requestHeader),a.setWithCredentials(i.withCredentials);let l=0;function c(c){a.load(t[c],function(t){const n=i.parse(t,!0);s[c]={width:n.width,height:n.height,format:n.format,mipmaps:n.mipmaps},6===(l+=1)&&(1===n.mipmapCount&&(o.minFilter=gt),o.image=s,o.format=n.format,o.needsUpdate=!0,e&&e(o))},n,r)}if(Array.isArray(t))for(let h=0,u=t.length;h<u;++h)c(h);else a.load(t,function(t){const n=i.parse(t,!0);if(n.isCubemap){const t=n.mipmaps.length/n.mipmapCount;for(let e=0;e<t;e++){s[e]={mipmaps:[]};for(let t=0;t<n.mipmapCount;t++)s[e].mipmaps.push(n.mipmaps[e*n.mipmapCount+t]),s[e].format=n.format,s[e].width=n.width,s[e].height=n.height}o.image=s}else o.image.width=n.width,o.image.height=n.height,o.mipmaps=n.mipmaps;1===n.mipmapCount&&(o.minFilter=gt),o.format=n.format,o.needsUpdate=!0,e&&e(o)},n,r);return o}});class fd extends hd{constructor(t){super(t)}load(t,e,n,r){void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o=document.createElementNS("http://www.w3.org/1999/xhtml","img");function a(){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),ad.add(t,this),e&&e(this),i.manager.itemEnd(t)}function l(e){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}return o.addEventListener("load",a,!1),o.addEventListener("error",l,!1),"data:"!==t.substr(0,5)&&void 0!==this.crossOrigin&&(o.crossOrigin=this.crossOrigin),i.manager.itemStart(t),o.src=t,o}}exports.ImageLoader=fd;class gd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=new bs,s=new fd(this.manager);s.setCrossOrigin(this.crossOrigin),s.setPath(this.path);let o=0;function a(n){s.load(t[n],function(t){i.images[n]=t,6===++o&&(i.needsUpdate=!0,e&&e(i))},void 0,r)}for(let l=0;l<t.length;++l)a(l);return i}}function xd(t){hd.call(this,t)}function vd(t){hd.call(this,t)}function yd(){this.type="Curve",this.arcLengthDivisions=200}exports.CubeTextureLoader=gd,xd.prototype=Object.assign(Object.create(hd.prototype),{constructor:xd,load:function(t,e,n,r){const i=this,s=new Ms,o=new pd(this.manager);return o.setResponseType("arraybuffer"),o.setRequestHeader(this.requestHeader),o.setPath(this.path),o.setWithCredentials(i.withCredentials),o.load(t,function(t){const n=i.parse(t);n&&(void 0!==n.image?s.image=n.image:void 0!==n.data&&(s.image.width=n.width,s.image.height=n.height,s.image.data=n.data),s.wrapS=void 0!==n.wrapS?n.wrapS:ct,s.wrapT=void 0!==n.wrapT?n.wrapT:ct,s.magFilter=void 0!==n.magFilter?n.magFilter:gt,s.minFilter=void 0!==n.minFilter?n.minFilter:gt,s.anisotropy=void 0!==n.anisotropy?n.anisotropy:1,void 0!==n.encoding&&(s.encoding=n.encoding),void 0!==n.flipY&&(s.flipY=n.flipY),void 0!==n.format&&(s.format=n.format),void 0!==n.type&&(s.type=n.type),void 0!==n.mipmaps&&(s.mipmaps=n.mipmaps,s.minFilter=yt),1===n.mipmapCount&&(s.minFilter=gt),s.needsUpdate=!0,e&&e(s,n))},n,r),s}}),vd.prototype=Object.assign(Object.create(hd.prototype),{constructor:vd,load:function(t,e,n,r){const i=new kn,s=new fd(this.manager);return s.setCrossOrigin(this.crossOrigin),s.setPath(this.path),s.load(t,function(n){i.image=n;const r=t.search(/\.jpe?g($|\?)/i)>0||0===t.search(/^data\:image\/jpeg/);i.format=r?Bt:Nt,i.needsUpdate=!0,void 0!==e&&e(i)},n,r),i}}),Object.assign(yd.prototype,{getPoint:function(){return console.warn("THREE.Curve: .getPoint() not implemented."),null},getPointAt:function(t,e){const n=this.getUtoTmapping(t);return this.getPoint(n,e)},getPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return e},getSpacedPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPointAt(n/t));return e},getLength:function(){const t=this.getLengths();return t[t.length-1]},getLengths:function(t){if(void 0===t&&(t=this.arcLengthDivisions),this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;const e=[];let n,r=this.getPoint(0),i=0;e.push(0);for(let s=1;s<=t;s++)i+=(n=this.getPoint(s/t)).distanceTo(r),e.push(i),r=n;return this.cacheArcLengths=e,e},updateArcLengths:function(){this.needsUpdate=!0,this.getLengths()},getUtoTmapping:function(t,e){const n=this.getLengths();let r=0;const i=n.length;let s;s=e||t*n[i-1];let o,a=0,l=i-1;for(;a<=l;)if((o=n[r=Math.floor(a+(l-a)/2)]-s)<0)a=r+1;else{if(!(o>0)){l=r;break}l=r-1}if(n[r=l]===s)return r/(i-1);const c=n[r];return(r+(s-c)/(n[r+1]-c))/(i-1)},getTangent:function(t,e){let n=t-1e-4,r=t+1e-4;n<0&&(n=0),r>1&&(r=1);const i=this.getPoint(n),s=this.getPoint(r),o=e||(i.isVector2?new On:new Yn);return o.copy(s).sub(i).normalize(),o},getTangentAt:function(t,e){const n=this.getUtoTmapping(t);return this.getTangent(n,e)},computeFrenetFrames:function(t,e){const n=new Yn,r=[],i=[],s=[],o=new Yn,a=new wr;for(let p=0;p<=t;p++){const e=p/t;r[p]=this.getTangentAt(e,new Yn),r[p].normalize()}i[0]=new Yn,s[0]=new Yn;let l=Number.MAX_VALUE;const c=Math.abs(r[0].x),h=Math.abs(r[0].y),u=Math.abs(r[0].z);c<=l&&(l=c,n.set(1,0,0)),h<=l&&(l=h,n.set(0,1,0)),u<=l&&n.set(0,0,1),o.crossVectors(r[0],n).normalize(),i[0].crossVectors(r[0],o),s[0].crossVectors(r[0],i[0]);for(let p=1;p<=t;p++){if(i[p]=i[p-1].clone(),s[p]=s[p-1].clone(),o.crossVectors(r[p-1],r[p]),o.length()>Number.EPSILON){o.normalize();const t=Math.acos(Fn.clamp(r[p-1].dot(r[p]),-1,1));i[p].applyMatrix4(a.makeRotationAxis(o,t))}s[p].crossVectors(r[p],i[p])}if(!0===e){let e=Math.acos(Fn.clamp(i[0].dot(i[t]),-1,1));e/=t,r[0].dot(o.crossVectors(i[0],i[t]))>0&&(e=-e);for(let n=1;n<=t;n++)i[n].applyMatrix4(a.makeRotationAxis(r[n],e*n)),s[n].crossVectors(r[n],i[n])}return{tangents:r,normals:i,binormals:s}},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this},toJSON:function(){const t={metadata:{version:4.5,type:"Curve",generator:"Curve.toJSON"}};return t.arcLengthDivisions=this.arcLengthDivisions,t.type=this.type,t},fromJSON:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}});class _d extends yd{constructor(t=0,e=0,n=1,r=1,i=0,s=2*Math.PI,o=!1,a=0){super(),this.type="EllipseCurve",this.aX=t,this.aY=e,this.xRadius=n,this.yRadius=r,this.aStartAngle=i,this.aEndAngle=s,this.aClockwise=o,this.aRotation=a}getPoint(t,e){const n=e||new On,r=2*Math.PI;let i=this.aEndAngle-this.aStartAngle;const s=Math.abs(i)<Number.EPSILON;for(;i<0;)i+=r;for(;i>r;)i-=r;i<Number.EPSILON&&(i=s?0:r),!0!==this.aClockwise||s||(i===r?i=-r:i-=r);const o=this.aStartAngle+t*i;let a=this.aX+this.xRadius*Math.cos(o),l=this.aY+this.yRadius*Math.sin(o);if(0!==this.aRotation){const t=Math.cos(this.aRotation),e=Math.sin(this.aRotation),n=a-this.aX,r=l-this.aY;a=n*t-r*e+this.aX,l=n*e+r*t+this.aY}return n.set(a,l)}copy(t){return super.copy(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}toJSON(){const t=super.toJSON();return t.aX=this.aX,t.aY=this.aY,t.xRadius=this.xRadius,t.yRadius=this.yRadius,t.aStartAngle=this.aStartAngle,t.aEndAngle=this.aEndAngle,t.aClockwise=this.aClockwise,t.aRotation=this.aRotation,t}fromJSON(t){return super.fromJSON(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}}exports.EllipseCurve=_d,_d.prototype.isEllipseCurve=!0;class bd extends _d{constructor(t,e,n,r,i,s){super(t,e,n,n,r,i,s),this.type="ArcCurve"}}function wd(){let t=0,e=0,n=0,r=0;function i(i,s,o,a){t=i,e=o,n=-3*i+3*s-2*o-a,r=2*i-2*s+o+a}return{initCatmullRom:function(t,e,n,r,s){i(e,n,s*(n-t),s*(r-e))},initNonuniformCatmullRom:function(t,e,n,r,s,o,a){let l=(e-t)/s-(n-t)/(s+o)+(n-e)/o,c=(n-e)/o-(r-e)/(o+a)+(r-n)/a;i(e,n,l*=o,c*=o)},calc:function(i){const s=i*i;return t+e*i+n*s+r*(s*i)}}}exports.ArcCurve=bd,bd.prototype.isArcCurve=!0;const Md=new Yn,Sd=new wd,Td=new wd,Ed=new wd;class Ad extends yd{constructor(t=[],e=!1,n="centripetal",r=.5){super(),this.type="CatmullRomCurve3",this.points=t,this.closed=e,this.curveType=n,this.tension=r}getPoint(t,e=new Yn){const n=e,r=this.points,i=r.length,s=(i-(this.closed?0:1))*t;let o,a,l=Math.floor(s),c=s-l;this.closed?l+=l>0?0:(Math.floor(Math.abs(l)/i)+1)*i:0===c&&l===i-1&&(l=i-2,c=1),this.closed||l>0?o=r[(l-1)%i]:(Md.subVectors(r[0],r[1]).add(r[0]),o=Md);const h=r[l%i],u=r[(l+1)%i];if(this.closed||l+2<i?a=r[(l+2)%i]:(Md.subVectors(r[i-1],r[i-2]).add(r[i-1]),a=Md),"centripetal"===this.curveType||"chordal"===this.curveType){const t="chordal"===this.curveType?.5:.25;let e=Math.pow(o.distanceToSquared(h),t),n=Math.pow(h.distanceToSquared(u),t),r=Math.pow(u.distanceToSquared(a),t);n<1e-4&&(n=1),e<1e-4&&(e=n),r<1e-4&&(r=n),Sd.initNonuniformCatmullRom(o.x,h.x,u.x,a.x,e,n,r),Td.initNonuniformCatmullRom(o.y,h.y,u.y,a.y,e,n,r),Ed.initNonuniformCatmullRom(o.z,h.z,u.z,a.z,e,n,r)}else"catmullrom"===this.curveType&&(Sd.initCatmullRom(o.x,h.x,u.x,a.x,this.tension),Td.initCatmullRom(o.y,h.y,u.y,a.y,this.tension),Ed.initCatmullRom(o.z,h.z,u.z,a.z,this.tension));return n.set(Sd.calc(c),Td.calc(c),Ed.calc(c)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t.closed=this.closed,t.curveType=this.curveType,t.tension=this.tension,t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new Yn).fromArray(n))}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}}function Ld(t,e,n,r,i){const s=.5*(r-e),o=.5*(i-n),a=t*t;return(2*n-2*r+s+o)*(t*a)+(-3*n+3*r-2*s-o)*a+s*t+n}function Rd(t,e){const n=1-t;return n*n*e}function Cd(t,e){return 2*(1-t)*t*e}function Pd(t,e){return t*t*e}function Dd(t,e,n,r){return Rd(t,e)+Cd(t,n)+Pd(t,r)}function Id(t,e){const n=1-t;return n*n*n*e}function Bd(t,e){const n=1-t;return 3*n*n*t*e}function Nd(t,e){return 3*(1-t)*t*t*e}function Fd(t,e){return t*t*t*e}function Od(t,e,n,r,i){return Id(t,e)+Bd(t,n)+Nd(t,r)+Fd(t,i)}exports.CatmullRomCurve3=Ad,Ad.prototype.isCatmullRomCurve3=!0;class zd extends yd{constructor(t=new On,e=new On,n=new On,r=new On){super(),this.type="CubicBezierCurve",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve=zd,zd.prototype.isCubicBezierCurve=!0;class Gd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn,r=new Yn){super(),this.type="CubicBezierCurve3",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y),Od(t,r.z,i.z,s.z,o.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve3=Gd,Gd.prototype.isCubicBezierCurve3=!0;class Hd extends yd{constructor(t=new On,e=new On){super(),this.type="LineCurve",this.v1=t,this.v2=e}getPoint(t,e=new On){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e){const n=e||new On;return n.copy(this.v2).sub(this.v1).normalize(),n}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve=Hd,Hd.prototype.isLineCurve=!0;class Ud extends yd{constructor(t=new Yn,e=new Yn){super(),this.type="LineCurve3",this.isLineCurve3=!0,this.v1=t,this.v2=e}getPoint(t,e=new Yn){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve3=Ud;class kd extends yd{constructor(t=new On,e=new On,n=new On){super(),this.type="QuadraticBezierCurve",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve=kd,kd.prototype.isQuadraticBezierCurve=!0;class Vd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn){super(),this.type="QuadraticBezierCurve3",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y),Dd(t,r.z,i.z,s.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve3=Vd,Vd.prototype.isQuadraticBezierCurve3=!0;class Wd extends yd{constructor(t=[]){super(),this.type="SplineCurve",this.points=t}getPoint(t,e=new On){const n=e,r=this.points,i=(r.length-1)*t,s=Math.floor(i),o=i-s,a=r[0===s?s:s-1],l=r[s],c=r[s>r.length-2?r.length-1:s+1],h=r[s>r.length-3?r.length-1:s+2];return n.set(Ld(o,a.x,l.x,c.x,h.x),Ld(o,a.y,l.y,c.y,h.y)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new On).fromArray(n))}return this}}exports.SplineCurve=Wd,Wd.prototype.isSplineCurve=!0;var jd=Object.freeze({__proto__:null,ArcCurve:bd,CatmullRomCurve3:Ad,CubicBezierCurve:zd,CubicBezierCurve3:Gd,EllipseCurve:_d,LineCurve:Hd,LineCurve3:Ud,QuadraticBezierCurve:kd,QuadraticBezierCurve3:Vd,SplineCurve:Wd});class qd extends yd{constructor(){super(),this.type="CurvePath",this.curves=[],this.autoClose=!1}add(t){this.curves.push(t)}closePath(){const t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);t.equals(e)||this.curves.push(new Hd(e,t))}getPoint(t){const e=t*this.getLength(),n=this.getCurveLengths();let r=0;for(;r<n.length;){if(n[r]>=e){const t=n[r]-e,i=this.curves[r],s=i.getLength(),o=0===s?0:1-t/s;return i.getPointAt(o)}r++}return null}getLength(){const t=this.getCurveLengths();return t[t.length-1]}updateArcLengths(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()}getCurveLengths(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;const t=[];let e=0;for(let n=0,r=this.curves.length;n<r;n++)e+=this.curves[n].getLength(),t.push(e);return this.cacheLengths=t,t}getSpacedPoints(t=40){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return this.autoClose&&e.push(e[0]),e}getPoints(t=12){const e=[];let n;for(let r=0,i=this.curves;r<i.length;r++){const s=i[r],o=s&&s.isEllipseCurve?2*t:s&&(s.isLineCurve||s.isLineCurve3)?1:s&&s.isSplineCurve?t*s.points.length:t,a=s.getPoints(o);for(let t=0;t<a.length;t++){const r=a[t];n&&n.equals(r)||(e.push(r),n=r)}}return this.autoClose&&e.length>1&&!e[e.length-1].equals(e[0])&&e.push(e[0]),e}copy(t){super.copy(t),this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push(n.clone())}return this.autoClose=t.autoClose,this}toJSON(){const t=super.toJSON();t.autoClose=this.autoClose,t.curves=[];for(let e=0,n=this.curves.length;e<n;e++){const n=this.curves[e];t.curves.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.autoClose=t.autoClose,this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push((new jd[n.type]).fromJSON(n))}return this}}exports.CurvePath=qd;class Xd extends qd{constructor(t){super(),this.type="Path",this.currentPoint=new On,t&&this.setFromPoints(t)}setFromPoints(t){this.moveTo(t[0].x,t[0].y);for(let e=1,n=t.length;e<n;e++)this.lineTo(t[e].x,t[e].y);return this}moveTo(t,e){return this.currentPoint.set(t,e),this}lineTo(t,e){const n=new Hd(this.currentPoint.clone(),new On(t,e));return this.curves.push(n),this.currentPoint.set(t,e),this}quadraticCurveTo(t,e,n,r){const i=new kd(this.currentPoint.clone(),new On(t,e),new On(n,r));return this.curves.push(i),this.currentPoint.set(n,r),this}bezierCurveTo(t,e,n,r,i,s){const o=new zd(this.currentPoint.clone(),new On(t,e),new On(n,r),new On(i,s));return this.curves.push(o),this.currentPoint.set(i,s),this}splineThru(t){const e=[this.currentPoint.clone()].concat(t),n=new Wd(e);return this.curves.push(n),this.currentPoint.copy(t[t.length-1]),this}arc(t,e,n,r,i,s){const o=this.currentPoint.x,a=this.currentPoint.y;return this.absarc(t+o,e+a,n,r,i,s),this}absarc(t,e,n,r,i,s){return this.absellipse(t,e,n,n,r,i,s),this}ellipse(t,e,n,r,i,s,o,a){const l=this.currentPoint.x,c=this.currentPoint.y;return this.absellipse(t+l,e+c,n,r,i,s,o,a),this}absellipse(t,e,n,r,i,s,o,a){const l=new _d(t,e,n,r,i,s,o,a);if(this.curves.length>0){const t=l.getPoint(0);t.equals(this.currentPoint)||this.lineTo(t.x,t.y)}this.curves.push(l);const c=l.getPoint(1);return this.currentPoint.copy(c),this}copy(t){return super.copy(t),this.currentPoint.copy(t.currentPoint),this}toJSON(){const t=super.toJSON();return t.currentPoint=this.currentPoint.toArray(),t}fromJSON(t){return super.fromJSON(t),this.currentPoint.fromArray(t.currentPoint),this}}exports.Path=Xd;class Yd extends Xd{constructor(t){super(t),this.uuid=Fn.generateUUID(),this.type="Shape",this.holes=[]}getPointsHoles(t){const e=[];for(let n=0,r=this.holes.length;n<r;n++)e[n]=this.holes[n].getPoints(t);return e}extractPoints(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}}copy(t){super.copy(t),this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.uuid=this.uuid,t.holes=[];for(let e=0,n=this.holes.length;e<n;e++){const n=this.holes[e];t.holes.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.uuid=t.uuid,this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push((new Xd).fromJSON(n))}return this}}exports.Shape=Yd;class Zd extends Xr{constructor(t,e=1){super(),this.type="Light",this.color=new xi(t),this.intensity=e}copy(t){return super.copy(t),this.color.copy(t.color),this.intensity=t.intensity,this}toJSON(t){const e=super.toJSON(t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}exports.Light=Zd,Zd.prototype.isLight=!0;class Jd extends Zd{constructor(t,e,n){super(t,n),this.type="HemisphereLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.groundColor=new xi(e)}copy(t){return Zd.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}exports.HemisphereLight=Jd,Jd.prototype.isHemisphereLight=!0;const Qd=new wr,Kd=new Yn,$d=new Yn;class tm{constructor(t){this.camera=t,this.bias=0,this.normalBias=0,this.radius=1,this.mapSize=new On(512,512),this.map=null,this.mapPass=null,this.matrix=new wr,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new Es,this._frameExtents=new On(1,1),this._viewportCount=1,this._viewports=[new Wn(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,n=this.matrix;Kd.setFromMatrixPosition(t.matrixWorld),e.position.copy(Kd),$d.setFromMatrixPosition(t.target.matrixWorld),e.lookAt($d),e.updateMatrixWorld(),Qd.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Qd),n.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),n.multiply(e.projectionMatrix),n.multiply(e.matrixWorldInverse)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}copy(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class em extends tm{constructor(){super(new xs(50,1,.5,500)),this.focus=1}updateMatrices(t){const e=this.camera,n=2*Fn.RAD2DEG*t.angle*this.focus,r=this.mapSize.width/this.mapSize.height,i=t.distance||e.far;n===e.fov&&r===e.aspect&&i===e.far||(e.fov=n,e.aspect=r,e.far=i,e.updateProjectionMatrix()),super.updateMatrices(t)}}em.prototype.isSpotLightShadow=!0;class nm extends Zd{constructor(t,e,n=0,r=Math.PI/3,i=0,s=1){super(t,e),this.type="SpotLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.distance=n,this.angle=r,this.penumbra=i,this.decay=s,this.shadow=new em}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}copy(t){return super.copy(t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.SpotLight=nm,nm.prototype.isSpotLight=!0;const rm=new wr,im=new Yn,sm=new Yn;class om extends tm{constructor(){super(new xs(90,1,.5,500)),this._frameExtents=new On(4,2),this._viewportCount=6,this._viewports=[new Wn(2,1,1,1),new Wn(0,1,1,1),new Wn(3,1,1,1),new Wn(1,1,1,1),new Wn(3,0,1,1),new Wn(1,0,1,1)],this._cubeDirections=[new Yn(1,0,0),new Yn(-1,0,0),new Yn(0,0,1),new Yn(0,0,-1),new Yn(0,1,0),new Yn(0,-1,0)],this._cubeUps=[new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,0,1),new Yn(0,0,-1)]}updateMatrices(t,e=0){const n=this.camera,r=this.matrix;im.setFromMatrixPosition(t.matrixWorld),n.position.copy(im),sm.copy(n.position),sm.add(this._cubeDirections[e]),n.up.copy(this._cubeUps[e]),n.lookAt(sm),n.updateMatrixWorld(),r.makeTranslation(-im.x,-im.y,-im.z),rm.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),this._frustum.setFromProjectionMatrix(rm)}}om.prototype.isPointLightShadow=!0;class am extends Zd{constructor(t,e,n=0,r=1){super(t,e),this.type="PointLight",this.distance=n,this.decay=r,this.shadow=new om}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}copy(t){return super.copy(t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}exports.PointLight=am,am.prototype.isPointLight=!0;class lm extends gs{constructor(t=-1,e=1,n=1,r=-1,i=.1,s=2e3){super(),this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=n,this.bottom=r,this.near=i,this.far=s,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,n,r,i,s){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,r=(this.top+this.bottom)/2;let i=n-t,s=n+t,o=r+e,a=r-e;if(null!==this.view&&this.view.enabled){const t=(this.right-this.left)/this.view.fullWidth/this.zoom,e=(this.top-this.bottom)/this.view.fullHeight/this.zoom;s=(i+=t*this.view.offsetX)+t*this.view.width,a=(o-=e*this.view.offsetY)-e*this.view.height}this.projectionMatrix.makeOrthographic(i,s,o,a,this.near,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}exports.OrthographicCamera=lm,lm.prototype.isOrthographicCamera=!0;class cm extends tm{constructor(){super(new lm(-5,5,5,-5,.5,500))}}cm.prototype.isDirectionalLightShadow=!0;class hm extends Zd{constructor(t,e){super(t,e),this.type="DirectionalLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.shadow=new cm}copy(t){return super.copy(t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.DirectionalLight=hm,hm.prototype.isDirectionalLight=!0;class um extends Zd{constructor(t,e){super(t,e),this.type="AmbientLight"}}exports.AmbientLight=um,um.prototype.isAmbientLight=!0;class pm extends Zd{constructor(t,e,n=10,r=10){super(t,e),this.type="RectAreaLight",this.width=n,this.height=r}copy(t){return super.copy(t),this.width=t.width,this.height=t.height,this}toJSON(t){const e=super.toJSON(t);return e.object.width=this.width,e.object.height=this.height,e}}exports.RectAreaLight=pm,pm.prototype.isRectAreaLight=!0;class dm{constructor(){this.coefficients=[];for(let t=0;t<9;t++)this.coefficients.push(new Yn)}set(t){for(let e=0;e<9;e++)this.coefficients[e].copy(t[e]);return this}zero(){for(let t=0;t<9;t++)this.coefficients[t].set(0,0,0);return this}getAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.282095),e.addScaledVector(s[1],.488603*r),e.addScaledVector(s[2],.488603*i),e.addScaledVector(s[3],.488603*n),e.addScaledVector(s[4],n*r*1.092548),e.addScaledVector(s[5],r*i*1.092548),e.addScaledVector(s[6],.315392*(3*i*i-1)),e.addScaledVector(s[7],n*i*1.092548),e.addScaledVector(s[8],.546274*(n*n-r*r)),e}getIrradianceAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.886227),e.addScaledVector(s[1],1.023328*r),e.addScaledVector(s[2],1.023328*i),e.addScaledVector(s[3],1.023328*n),e.addScaledVector(s[4],.858086*n*r),e.addScaledVector(s[5],.858086*r*i),e.addScaledVector(s[6],.743125*i*i-.247708),e.addScaledVector(s[7],.858086*n*i),e.addScaledVector(s[8],.429043*(n*n-r*r)),e}add(t){for(let e=0;e<9;e++)this.coefficients[e].add(t.coefficients[e]);return this}addScaledSH(t,e){for(let n=0;n<9;n++)this.coefficients[n].addScaledVector(t.coefficients[n],e);return this}scale(t){for(let e=0;e<9;e++)this.coefficients[e].multiplyScalar(t);return this}lerp(t,e){for(let n=0;n<9;n++)this.coefficients[n].lerp(t.coefficients[n],e);return this}equals(t){for(let e=0;e<9;e++)if(!this.coefficients[e].equals(t.coefficients[e]))return!1;return!0}copy(t){return this.set(t.coefficients)}clone(){return(new this.constructor).copy(this)}fromArray(t,e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].fromArray(t,e+3*r);return this}toArray(t=[],e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].toArray(t,e+3*r);return t}static getBasisAt(t,e){const n=t.x,r=t.y,i=t.z;e[0]=.282095,e[1]=.488603*r,e[2]=.488603*i,e[3]=.488603*n,e[4]=1.092548*n*r,e[5]=1.092548*r*i,e[6]=.315392*(3*i*i-1),e[7]=1.092548*n*i,e[8]=.546274*(n*n-r*r)}}exports.SphericalHarmonics3=dm,dm.prototype.isSphericalHarmonics3=!0;class mm extends Zd{constructor(t=new dm,e=1){super(void 0,e),this.sh=t}copy(t){return super.copy(t),this.sh.copy(t.sh),this}fromJSON(t){return this.intensity=t.intensity,this.sh.fromArray(t.sh),this}toJSON(t){const e=super.toJSON(t);return e.object.sh=this.sh.toArray(),e}}exports.LightProbe=mm,mm.prototype.isLightProbe=!0;class fm extends hd{constructor(t){super(t),this.textures={}}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=this.textures;function n(t){return void 0===e[t]&&console.warn("THREE.MaterialLoader: Undefined texture",t),e[t]}const r=new Wp[t.type];if(void 0!==t.uuid&&(r.uuid=t.uuid),void 0!==t.name&&(r.name=t.name),void 0!==t.color&&void 0!==r.color&&r.color.setHex(t.color),void 0!==t.roughness&&(r.roughness=t.roughness),void 0!==t.metalness&&(r.metalness=t.metalness),void 0!==t.sheen&&(r.sheen=(new xi).setHex(t.sheen)),void 0!==t.emissive&&void 0!==r.emissive&&r.emissive.setHex(t.emissive),void 0!==t.specular&&void 0!==r.specular&&r.specular.setHex(t.specular),void 0!==t.shininess&&(r.shininess=t.shininess),void 0!==t.clearcoat&&(r.clearcoat=t.clearcoat),void 0!==t.clearcoatRoughness&&(r.clearcoatRoughness=t.clearcoatRoughness),void 0!==t.fog&&(r.fog=t.fog),void 0!==t.flatShading&&(r.flatShading=t.flatShading),void 0!==t.blending&&(r.blending=t.blending),void 0!==t.combine&&(r.combine=t.combine),void 0!==t.side&&(r.side=t.side),void 0!==t.opacity&&(r.opacity=t.opacity),void 0!==t.transparent&&(r.transparent=t.transparent),void 0!==t.alphaTest&&(r.alphaTest=t.alphaTest),void 0!==t.depthTest&&(r.depthTest=t.depthTest),void 0!==t.depthWrite&&(r.depthWrite=t.depthWrite),void 0!==t.colorWrite&&(r.colorWrite=t.colorWrite),void 0!==t.stencilWrite&&(r.stencilWrite=t.stencilWrite),void 0!==t.stencilWriteMask&&(r.stencilWriteMask=t.stencilWriteMask),void 0!==t.stencilFunc&&(r.stencilFunc=t.stencilFunc),void 0!==t.stencilRef&&(r.stencilRef=t.stencilRef),void 0!==t.stencilFuncMask&&(r.stencilFuncMask=t.stencilFuncMask),void 0!==t.stencilFail&&(r.stencilFail=t.stencilFail),void 0!==t.stencilZFail&&(r.stencilZFail=t.stencilZFail),void 0!==t.stencilZPass&&(r.stencilZPass=t.stencilZPass),void 0!==t.wireframe&&(r.wireframe=t.wireframe),void 0!==t.wireframeLinewidth&&(r.wireframeLinewidth=t.wireframeLinewidth),void 0!==t.wireframeLinecap&&(r.wireframeLinecap=t.wireframeLinecap),void 0!==t.wireframeLinejoin&&(r.wireframeLinejoin=t.wireframeLinejoin),void 0!==t.rotation&&(r.rotation=t.rotation),1!==t.linewidth&&(r.linewidth=t.linewidth),void 0!==t.dashSize&&(r.dashSize=t.dashSize),void 0!==t.gapSize&&(r.gapSize=t.gapSize),void 0!==t.scale&&(r.scale=t.scale),void 0!==t.polygonOffset&&(r.polygonOffset=t.polygonOffset),void 0!==t.polygonOffsetFactor&&(r.polygonOffsetFactor=t.polygonOffsetFactor),void 0!==t.polygonOffsetUnits&&(r.polygonOffsetUnits=t.polygonOffsetUnits),void 0!==t.skinning&&(r.skinning=t.skinning),void 0!==t.morphTargets&&(r.morphTargets=t.morphTargets),void 0!==t.morphNormals&&(r.morphNormals=t.morphNormals),void 0!==t.dithering&&(r.dithering=t.dithering),void 0!==t.vertexTangents&&(r.vertexTangents=t.vertexTangents),void 0!==t.visible&&(r.visible=t.visible),void 0!==t.toneMapped&&(r.toneMapped=t.toneMapped),void 0!==t.userData&&(r.userData=t.userData),void 0!==t.vertexColors&&("number"==typeof t.vertexColors?r.vertexColors=t.vertexColors>0:r.vertexColors=t.vertexColors),void 0!==t.uniforms)for(const i in t.uniforms){const e=t.uniforms[i];switch(r.uniforms[i]={},e.type){case"t":r.uniforms[i].value=n(e.value);break;case"c":r.uniforms[i].value=(new xi).setHex(e.value);break;case"v2":r.uniforms[i].value=(new On).fromArray(e.value);break;case"v3":r.uniforms[i].value=(new Yn).fromArray(e.value);break;case"v4":r.uniforms[i].value=(new Wn).fromArray(e.value);break;case"m3":r.uniforms[i].value=(new zn).fromArray(e.value);break;case"m4":r.uniforms[i].value=(new wr).fromArray(e.value);break;default:r.uniforms[i].value=e.value}}if(void 0!==t.defines&&(r.defines=t.defines),void 0!==t.vertexShader&&(r.vertexShader=t.vertexShader),void 0!==t.fragmentShader&&(r.fragmentShader=t.fragmentShader),void 0!==t.extensions)for(const i in t.extensions)r.extensions[i]=t.extensions[i];if(void 0!==t.shading&&(r.flatShading=1===t.shading),void 0!==t.size&&(r.size=t.size),void 0!==t.sizeAttenuation&&(r.sizeAttenuation=t.sizeAttenuation),void 0!==t.map&&(r.map=n(t.map)),void 0!==t.matcap&&(r.matcap=n(t.matcap)),void 0!==t.alphaMap&&(r.alphaMap=n(t.alphaMap)),void 0!==t.bumpMap&&(r.bumpMap=n(t.bumpMap)),void 0!==t.bumpScale&&(r.bumpScale=t.bumpScale),void 0!==t.normalMap&&(r.normalMap=n(t.normalMap)),void 0!==t.normalMapType&&(r.normalMapType=t.normalMapType),void 0!==t.normalScale){let e=t.normalScale;!1===Array.isArray(e)&&(e=[e,e]),r.normalScale=(new On).fromArray(e)}return void 0!==t.displacementMap&&(r.displacementMap=n(t.displacementMap)),void 0!==t.displacementScale&&(r.displacementScale=t.displacementScale),void 0!==t.displacementBias&&(r.displacementBias=t.displacementBias),void 0!==t.roughnessMap&&(r.roughnessMap=n(t.roughnessMap)),void 0!==t.metalnessMap&&(r.metalnessMap=n(t.metalnessMap)),void 0!==t.emissiveMap&&(r.emissiveMap=n(t.emissiveMap)),void 0!==t.emissiveIntensity&&(r.emissiveIntensity=t.emissiveIntensity),void 0!==t.specularMap&&(r.specularMap=n(t.specularMap)),void 0!==t.envMap&&(r.envMap=n(t.envMap)),void 0!==t.envMapIntensity&&(r.envMapIntensity=t.envMapIntensity),void 0!==t.reflectivity&&(r.reflectivity=t.reflectivity),void 0!==t.refractionRatio&&(r.refractionRatio=t.refractionRatio),void 0!==t.lightMap&&(r.lightMap=n(t.lightMap)),void 0!==t.lightMapIntensity&&(r.lightMapIntensity=t.lightMapIntensity),void 0!==t.aoMap&&(r.aoMap=n(t.aoMap)),void 0!==t.aoMapIntensity&&(r.aoMapIntensity=t.aoMapIntensity),void 0!==t.gradientMap&&(r.gradientMap=n(t.gradientMap)),void 0!==t.clearcoatMap&&(r.clearcoatMap=n(t.clearcoatMap)),void 0!==t.clearcoatRoughnessMap&&(r.clearcoatRoughnessMap=n(t.clearcoatRoughnessMap)),void 0!==t.clearcoatNormalMap&&(r.clearcoatNormalMap=n(t.clearcoatNormalMap)),void 0!==t.clearcoatNormalScale&&(r.clearcoatNormalScale=(new On).fromArray(t.clearcoatNormalScale)),void 0!==t.transmission&&(r.transmission=t.transmission),void 0!==t.transmissionMap&&(r.transmissionMap=n(t.transmissionMap)),r}setTextures(t){return this.textures=t,this}}exports.MaterialLoader=fm;const gm={decodeText:function(t){if("undefined"!=typeof TextDecoder)return(new TextDecoder).decode(t);let e="";for(let r=0,i=t.length;r<i;r++)e+=String.fromCharCode(t[r]);try{return decodeURIComponent(escape(e))}catch(n){return e}},extractUrlBase:function(t){const e=t.lastIndexOf("/");return-1===e?"./":t.substr(0,e+1)}};function xm(){ki.call(this),this.type="InstancedBufferGeometry",this.instanceCount=1/0}function vm(t,e,n,r){"number"==typeof n&&(r=n,n=!1,console.error("THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.")),bi.call(this,t,e,n),this.meshPerAttribute=r||1}exports.LoaderUtils=gm,xm.prototype=Object.assign(Object.create(ki.prototype),{constructor:xm,isInstancedBufferGeometry:!0,copy:function(t){return ki.prototype.copy.call(this,t),this.instanceCount=t.instanceCount,this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){const t=ki.prototype.toJSON.call(this);return t.instanceCount=this.instanceCount,t.isInstancedBufferGeometry=!0,t}}),vm.prototype=Object.assign(Object.create(bi.prototype),{constructor:vm,isInstancedBufferAttribute:!0,copy:function(t){return bi.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},toJSON:function(){const t=bi.prototype.toJSON.call(this);return t.meshPerAttribute=this.meshPerAttribute,t.isInstancedBufferAttribute=!0,t}});class ym extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e={},n={};function r(t,r){if(void 0!==e[r])return e[r];const i=t.interleavedBuffers[r],s=function(t,e){if(void 0!==n[e])return n[e];const r=t.arrayBuffers[e],i=new Uint32Array(r).buffer;return n[e]=i,i}(t,i.buffer),o=new _h(Bi(i.type,s),i.stride);return o.uuid=i.uuid,e[r]=o,o}const i=t.isInstancedBufferGeometry?new xm:new ki,s=t.data.index;if(void 0!==s){const t=Bi(s.type,s.array);i.setIndex(new bi(t,1))}const o=t.data.attributes;for(const h in o){const e=o[h];let n;if(e.isInterleavedBufferAttribute){n=new wh(r(t.data,e.data),e.itemSize,e.offset,e.normalized)}else{const t=Bi(e.type,e.array);n=new(e.isInstancedBufferAttribute?vm:bi)(t,e.itemSize,e.normalized)}void 0!==e.name&&(n.name=e.name),i.setAttribute(h,n)}const a=t.data.morphAttributes;if(a)for(const h in a){const e=a[h],n=[];for(let i=0,s=e.length;i<s;i++){const s=e[i];let o;if(s.isInterleavedBufferAttribute){o=new wh(r(t.data,s.data),s.itemSize,s.offset,s.normalized)}else{o=new bi(Bi(s.type,s.array),s.itemSize,s.normalized)}void 0!==s.name&&(o.name=s.name),n.push(o)}i.morphAttributes[h]=n}t.data.morphTargetsRelative&&(i.morphTargetsRelative=!0);const l=t.data.groups||t.data.drawcalls||t.data.offsets;if(void 0!==l)for(let h=0,u=l.length;h!==u;++h){const t=l[h];i.addGroup(t.start,t.count,t.materialIndex)}const c=t.data.boundingSphere;if(void 0!==c){const t=new Yn;void 0!==c.center&&t.fromArray(c.center),i.boundingSphere=new dr(t,c.radius)}return t.name&&(i.name=t.name),t.userData&&(i.userData=t.userData),i}}exports.BufferGeometryLoader=ym;class _m extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=""===this.path?gm.extractUrlBase(t):this.path;this.resourcePath=this.resourcePath||s;const o=new pd(this.manager);o.setPath(this.path),o.setRequestHeader(this.requestHeader),o.setWithCredentials(this.withCredentials),o.load(t,function(n){let s=null;try{s=JSON.parse(n)}catch(a){return void 0!==r&&r(a),void console.error("THREE:ObjectLoader: Can't parse "+t+".",a.message)}const o=s.metadata;void 0!==o&&void 0!==o.type&&"geometry"!==o.type.toLowerCase()?i.parse(s,e):console.error("THREE.ObjectLoader: Can't load "+t)},n,r)}parse(t,e){const n=this.parseAnimations(t.animations),r=this.parseShapes(t.shapes),i=this.parseGeometries(t.geometries,r),s=this.parseImages(t.images,function(){void 0!==e&&e(l)}),o=this.parseTextures(t.textures,s),a=this.parseMaterials(t.materials,o),l=this.parseObject(t.object,i,a,n),c=this.parseSkeletons(t.skeletons,l);if(this.bindSkeletons(l,c),void 0!==e){let t=!1;for(const e in s)if(s[e]instanceof HTMLImageElement){t=!0;break}!1===t&&e(l)}return l}parseShapes(t){const e={};if(void 0!==t)for(let n=0,r=t.length;n<r;n++){const r=(new Yd).fromJSON(t[n]);e[r.uuid]=r}return e}parseSkeletons(t,e){const n={},r={};if(e.traverse(function(t){t.isBone&&(r[t.uuid]=t)}),void 0!==t)for(let i=0,s=t.length;i<s;i++){const e=(new Qh).fromJSON(t[i],r);n[e.uuid]=e}return n}parseGeometries(t,e){const n={};let r;if(void 0!==t){const i=new ym;for(let s=0,o=t.length;s<o;s++){let o;const a=t[s];switch(a.type){case"PlaneGeometry":case"PlaneBufferGeometry":o=new Ip[a.type](a.width,a.height,a.widthSegments,a.heightSegments);break;case"BoxGeometry":case"BoxBufferGeometry":o=new Ip[a.type](a.width,a.height,a.depth,a.widthSegments,a.heightSegments,a.depthSegments);break;case"CircleGeometry":case"CircleBufferGeometry":o=new Ip[a.type](a.radius,a.segments,a.thetaStart,a.thetaLength);break;case"CylinderGeometry":case"CylinderBufferGeometry":o=new Ip[a.type](a.radiusTop,a.radiusBottom,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"ConeGeometry":case"ConeBufferGeometry":o=new Ip[a.type](a.radius,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"SphereGeometry":case"SphereBufferGeometry":o=new Ip[a.type](a.radius,a.widthSegments,a.heightSegments,a.phiStart,a.phiLength,a.thetaStart,a.thetaLength);break;case"DodecahedronGeometry":case"DodecahedronBufferGeometry":case"IcosahedronGeometry":case"IcosahedronBufferGeometry":case"OctahedronGeometry":case"OctahedronBufferGeometry":case"TetrahedronGeometry":case"TetrahedronBufferGeometry":o=new Ip[a.type](a.radius,a.detail);break;case"RingGeometry":case"RingBufferGeometry":o=new Ip[a.type](a.innerRadius,a.outerRadius,a.thetaSegments,a.phiSegments,a.thetaStart,a.thetaLength);break;case"TorusGeometry":case"TorusBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.radialSegments,a.tubularSegments,a.arc);break;case"TorusKnotGeometry":case"TorusKnotBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.tubularSegments,a.radialSegments,a.p,a.q);break;case"TubeGeometry":case"TubeBufferGeometry":o=new Ip[a.type]((new jd[a.path.type]).fromJSON(a.path),a.tubularSegments,a.radius,a.radialSegments,a.closed);break;case"LatheGeometry":case"LatheBufferGeometry":o=new Ip[a.type](a.points,a.segments,a.phiStart,a.phiLength);break;case"PolyhedronGeometry":case"PolyhedronBufferGeometry":o=new Ip[a.type](a.vertices,a.indices,a.radius,a.details);break;case"ShapeGeometry":case"ShapeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}o=new Ip[a.type](r,a.curveSegments);break;case"ExtrudeGeometry":case"ExtrudeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}const t=a.options.extrudePath;void 0!==t&&(a.options.extrudePath=(new jd[t.type]).fromJSON(t)),o=new Ip[a.type](r,a.options);break;case"BufferGeometry":case"InstancedBufferGeometry":o=i.parse(a);break;case"Geometry":console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type "'+a.type+'"');continue}o.uuid=a.uuid,void 0!==a.name&&(o.name=a.name),!0===o.isBufferGeometry&&void 0!==a.userData&&(o.userData=a.userData),n[a.uuid]=o}}return n}parseMaterials(t,e){const n={},r={};if(void 0!==t){const i=new fm;i.setTextures(e);for(let e=0,s=t.length;e<s;e++){const s=t[e];if("MultiMaterial"===s.type){const t=[];for(let e=0;e<s.materials.length;e++){const r=s.materials[e];void 0===n[r.uuid]&&(n[r.uuid]=i.parse(r)),t.push(n[r.uuid])}r[s.uuid]=t}else void 0===n[s.uuid]&&(n[s.uuid]=i.parse(s)),r[s.uuid]=n[s.uuid]}}return r}parseAnimations(t){const e={};if(void 0!==t)for(let n=0;n<t.length;n++){const r=t[n],i=id.parse(r);e[i.uuid]=i}return e}parseImages(t,e){const n=this,r={};let i;function s(t){if("string"==typeof t){const e=t;return function(t){return n.manager.itemStart(t),i.load(t,function(){n.manager.itemEnd(t)},void 0,function(){n.manager.itemError(t),n.manager.itemEnd(t)})}(/^(\/\/)|([a-z]+:(\/\/)?)/i.test(e)?e:n.resourcePath+e)}return t.data?{data:Bi(t.type,t.data),width:t.width,height:t.height}:null}if(void 0!==t&&t.length>0){const n=new ld(e);(i=new fd(n)).setCrossOrigin(this.crossOrigin);for(let e=0,i=t.length;e<i;e++){const n=t[e],i=n.url;if(Array.isArray(i)){r[n.uuid]=[];for(let t=0,e=i.length;t<e;t++){const e=s(i[t]);null!==e&&(e instanceof HTMLImageElement?r[n.uuid].push(e):r[n.uuid].push(new Ms(e.data,e.width,e.height)))}}else{const t=s(n.url);null!==t&&(r[n.uuid]=t)}}}return r}parseTextures(t,e){function n(t,e){return"number"==typeof t?t:(console.warn("THREE.ObjectLoader.parseTexture: Constant should be in numeric form.",t),e[t])}const r={};if(void 0!==t)for(let i=0,s=t.length;i<s;i++){const s=t[i];let o;void 0===s.image&&console.warn('THREE.ObjectLoader: No "image" specified for',s.uuid),void 0===e[s.image]&&console.warn("THREE.ObjectLoader: Undefined image",s.image);const a=e[s.image];Array.isArray(a)?(o=new bs(a),6===a.length&&(o.needsUpdate=!0)):(o=a&&a.data?new Ms(a.data,a.width,a.height):new kn(a),a&&(o.needsUpdate=!0)),o.uuid=s.uuid,void 0!==s.name&&(o.name=s.name),void 0!==s.mapping&&(o.mapping=n(s.mapping,bm)),void 0!==s.offset&&o.offset.fromArray(s.offset),void 0!==s.repeat&&o.repeat.fromArray(s.repeat),void 0!==s.center&&o.center.fromArray(s.center),void 0!==s.rotation&&(o.rotation=s.rotation),void 0!==s.wrap&&(o.wrapS=n(s.wrap[0],wm),o.wrapT=n(s.wrap[1],wm)),void 0!==s.format&&(o.format=s.format),void 0!==s.type&&(o.type=s.type),void 0!==s.encoding&&(o.encoding=s.encoding),void 0!==s.minFilter&&(o.minFilter=n(s.minFilter,Mm)),void 0!==s.magFilter&&(o.magFilter=n(s.magFilter,Mm)),void 0!==s.anisotropy&&(o.anisotropy=s.anisotropy),void 0!==s.flipY&&(o.flipY=s.flipY),void 0!==s.premultiplyAlpha&&(o.premultiplyAlpha=s.premultiplyAlpha),void 0!==s.unpackAlignment&&(o.unpackAlignment=s.unpackAlignment),r[s.uuid]=o}return r}parseObject(t,e,n,r){let i,s,o;function a(t){return void 0===e[t]&&console.warn("THREE.ObjectLoader: Undefined geometry",t),e[t]}function l(t){if(void 0!==t){if(Array.isArray(t)){const e=[];for(let r=0,i=t.length;r<i;r++){const i=t[r];void 0===n[i]&&console.warn("THREE.ObjectLoader: Undefined material",i),e.push(n[i])}return e}return void 0===n[t]&&console.warn("THREE.ObjectLoader: Undefined material",t),n[t]}}switch(t.type){case"Scene":i=new yh,void 0!==t.background&&Number.isInteger(t.background)&&(i.background=new xi(t.background)),void 0!==t.fog&&("Fog"===t.fog.type?i.fog=new vh(t.fog.color,t.fog.near,t.fog.far):"FogExp2"===t.fog.type&&(i.fog=new xh(t.fog.color,t.fog.density)));break;case"PerspectiveCamera":i=new xs(t.fov,t.aspect,t.near,t.far),void 0!==t.focus&&(i.focus=t.focus),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.filmGauge&&(i.filmGauge=t.filmGauge),void 0!==t.filmOffset&&(i.filmOffset=t.filmOffset),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"OrthographicCamera":i=new lm(t.left,t.right,t.top,t.bottom,t.near,t.far),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"AmbientLight":i=new um(t.color,t.intensity);break;case"DirectionalLight":i=new hm(t.color,t.intensity);break;case"PointLight":i=new am(t.color,t.intensity,t.distance,t.decay);break;case"RectAreaLight":i=new pm(t.color,t.intensity,t.width,t.height);break;case"SpotLight":i=new nm(t.color,t.intensity,t.distance,t.angle,t.penumbra,t.decay);break;case"HemisphereLight":i=new Jd(t.color,t.groundColor,t.intensity);break;case"LightProbe":i=(new mm).fromJSON(t);break;case"SkinnedMesh":i=new Xh(s=a(t.geometry),o=l(t.material)),void 0!==t.bindMode&&(i.bindMode=t.bindMode),void 0!==t.bindMatrix&&i.bindMatrix.fromArray(t.bindMatrix),void 0!==t.skeleton&&(i.skeleton=t.skeleton);break;case"Mesh":i=new os(s=a(t.geometry),o=l(t.material));break;case"InstancedMesh":s=a(t.geometry),o=l(t.material);const e=t.count,n=t.instanceMatrix;(i=new nu(s,o,e)).instanceMatrix=new bi(new Float32Array(n.array),16);break;case"LOD":i=new Uh;break;case"Line":i=new cu(a(t.geometry),l(t.material));break;case"LineLoop":i=new du(a(t.geometry),l(t.material));break;case"LineSegments":i=new pu(a(t.geometry),l(t.material));break;case"PointCloud":case"Points":i=new yu(a(t.geometry),l(t.material));break;case"Sprite":i=new Oh(l(t.material));break;case"Group":i=new hh;break;case"Bone":i=new Yh;break;default:i=new Xr}if(i.uuid=t.uuid,void 0!==t.name&&(i.name=t.name),void 0!==t.matrix?(i.matrix.fromArray(t.matrix),void 0!==t.matrixAutoUpdate&&(i.matrixAutoUpdate=t.matrixAutoUpdate),i.matrixAutoUpdate&&i.matrix.decompose(i.position,i.quaternion,i.scale)):(void 0!==t.position&&i.position.fromArray(t.position),void 0!==t.rotation&&i.rotation.fromArray(t.rotation),void 0!==t.quaternion&&i.quaternion.fromArray(t.quaternion),void 0!==t.scale&&i.scale.fromArray(t.scale)),void 0!==t.castShadow&&(i.castShadow=t.castShadow),void 0!==t.receiveShadow&&(i.receiveShadow=t.receiveShadow),t.shadow&&(void 0!==t.shadow.bias&&(i.shadow.bias=t.shadow.bias),void 0!==t.shadow.normalBias&&(i.shadow.normalBias=t.shadow.normalBias),void 0!==t.shadow.radius&&(i.shadow.radius=t.shadow.radius),void 0!==t.shadow.mapSize&&i.shadow.mapSize.fromArray(t.shadow.mapSize),void 0!==t.shadow.camera&&(i.shadow.camera=this.parseObject(t.shadow.camera))),void 0!==t.visible&&(i.visible=t.visible),void 0!==t.frustumCulled&&(i.frustumCulled=t.frustumCulled),void 0!==t.renderOrder&&(i.renderOrder=t.renderOrder),void 0!==t.userData&&(i.userData=t.userData),void 0!==t.layers&&(i.layers.mask=t.layers),void 0!==t.children){const s=t.children;for(let t=0;t<s.length;t++)i.add(this.parseObject(s[t],e,n,r))}if(void 0!==t.animations){const e=t.animations;for(let t=0;t<e.length;t++){const n=e[t];i.animations.push(r[n])}}if("LOD"===t.type){void 0!==t.autoUpdate&&(i.autoUpdate=t.autoUpdate);const e=t.levels;for(let t=0;t<e.length;t++){const n=e[t],r=i.getObjectByProperty("uuid",n.object);void 0!==r&&i.addLevel(r,n.distance)}}return i}bindSkeletons(t,e){0!==Object.keys(e).length&&t.traverse(function(t){if(!0===t.isSkinnedMesh&&void 0!==t.skeleton){const n=e[t.skeleton];void 0===n?console.warn("THREE.ObjectLoader: No skeleton found with UUID:",t.skeleton):t.bind(n,t.bindMatrix)}})}setTexturePath(t){return console.warn("THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath()."),this.setResourcePath(t)}}exports.ObjectLoader=_m;const bm={UVMapping:et,CubeReflectionMapping:nt,CubeRefractionMapping:rt,EquirectangularReflectionMapping:it,EquirectangularRefractionMapping:st,CubeUVReflectionMapping:ot,CubeUVRefractionMapping:at},wm={RepeatWrapping:lt,ClampToEdgeWrapping:ct,MirroredRepeatWrapping:ht},Mm={NearestFilter:ut,NearestMipmapNearestFilter:pt,NearestMipmapLinearFilter:mt,LinearFilter:gt,LinearMipmapNearestFilter:xt,LinearMipmapLinearFilter:yt};function Sm(t){"undefined"==typeof createImageBitmap&&console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported."),"undefined"==typeof fetch&&console.warn("THREE.ImageBitmapLoader: fetch() not supported."),hd.call(this,t),this.options={premultiplyAlpha:"none"}}Sm.prototype=Object.assign(Object.create(hd.prototype),{constructor:Sm,isImageBitmapLoader:!0,setOptions:function(t){return this.options=t,this},load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o={};o.credentials="anonymous"===this.crossOrigin?"same-origin":"include",o.headers=this.requestHeader,fetch(t,o).then(function(t){return t.blob()}).then(function(t){return createImageBitmap(t,Object.assign(i.options,{colorSpaceConversion:"none"}))}).then(function(n){ad.add(t,n),e&&e(n),i.manager.itemEnd(t)}).catch(function(e){r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}),i.manager.itemStart(t)}});class Tm{constructor(){this.type="ShapePath",this.color=new xi,this.subPaths=[],this.currentPath=null}moveTo(t,e){return this.currentPath=new Xd,this.subPaths.push(this.currentPath),this.currentPath.moveTo(t,e),this}lineTo(t,e){return this.currentPath.lineTo(t,e),this}quadraticCurveTo(t,e,n,r){return this.currentPath.quadraticCurveTo(t,e,n,r),this}bezierCurveTo(t,e,n,r,i,s){return this.currentPath.bezierCurveTo(t,e,n,r,i,s),this}splineThru(t){return this.currentPath.splineThru(t),this}toShapes(t,e){function n(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n],i=new Yd;i.curves=r.curves,e.push(i)}return e}function r(t,e){const n=e.length;let r=!1;for(let i=n-1,s=0;s<n;i=s++){let n=e[i],o=e[s],a=o.x-n.x,l=o.y-n.y;if(Math.abs(l)>Number.EPSILON){if(l<0&&(n=e[s],a=-a,o=e[i],l=-l),t.y<n.y||t.y>o.y)continue;if(t.y===n.y){if(t.x===n.x)return!0}else{const e=l*(t.x-n.x)-a*(t.y-n.y);if(0===e)return!0;if(e<0)continue;r=!r}}else{if(t.y!==n.y)continue;if(o.x<=t.x&&t.x<=n.x||n.x<=t.x&&t.x<=o.x)return!0}}return r}const i=dp.isClockWise,s=this.subPaths;if(0===s.length)return[];if(!0===e)return n(s);let o,a,l;const c=[];if(1===s.length)return a=s[0],(l=new Yd).curves=a.curves,c.push(l),c;let h=!i(s[0].getPoints());h=t?!h:h;const u=[],p=[];let d,m,f=[],g=0;p[g]=void 0,f[g]=[];for(let x=0,v=s.length;x<v;x++)o=i(d=(a=s[x]).getPoints()),(o=t?!o:o)?(!h&&p[g]&&g++,p[g]={s:new Yd,p:d},p[g].s.curves=a.curves,h&&g++,f[g]=[]):f[g].push({h:a,p:d[0]});if(!p[0])return n(s);if(p.length>1){let t=!1;const e=[];for(let n=0,r=p.length;n<r;n++)u[n]=[];for(let n=0,i=p.length;n<i;n++){const i=f[n];for(let s=0;s<i.length;s++){const o=i[s];let a=!0;for(let i=0;i<p.length;i++)r(o.p,p[i].p)&&(n!==i&&e.push({froms:n,tos:i,hole:s}),a?(a=!1,u[i].push(o)):t=!0);a&&u[n].push(o)}}e.length>0&&(t||(f=u))}for(let x=0,v=p.length;x<v;x++){l=p[x].s,c.push(l);for(let t=0,e=(m=f[x]).length;t<e;t++)l.holes.push(m[t].h)}return c}}exports.ShapePath=Tm;class Em{constructor(t){this.type="Font",this.data=t}generateShapes(t,e=100){const n=[],r=Am(t,e,this.data);for(let i=0,s=r.length;i<s;i++)Array.prototype.push.apply(n,r[i].toShapes());return n}}function Am(t,e,n){const r=Array.from(t),i=e/n.resolution,s=(n.boundingBox.yMax-n.boundingBox.yMin+n.underlineThickness)*i,o=[];let a=0,l=0;for(let c=0;c<r.length;c++){const t=r[c];if("\n"===t)a=0,l-=s;else{const e=Lm(t,i,a,l,n);a+=e.offsetX,o.push(e.path)}}return o}function Lm(t,e,n,r,i){const s=i.glyphs[t]||i.glyphs["?"];if(!s)return void console.error('THREE.Font: character "'+t+'" does not exists in font family '+i.familyName+".");const o=new Tm;let a,l,c,h,u,p,d,m;if(s.o){const t=s._cachedOutline||(s._cachedOutline=s.o.split(" "));for(let i=0,s=t.length;i<s;){switch(t[i++]){case"m":a=t[i++]*e+n,l=t[i++]*e+r,o.moveTo(a,l);break;case"l":a=t[i++]*e+n,l=t[i++]*e+r,o.lineTo(a,l);break;case"q":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,o.quadraticCurveTo(u,p,c,h);break;case"b":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,d=t[i++]*e+n,m=t[i++]*e+r,o.bezierCurveTo(u,p,d,m,c,h)}}}return{offsetX:s.ha*e,path:o}}exports.Font=Em,Em.prototype.isFont=!0;class Rm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(t){let n;try{n=JSON.parse(t)}catch(s){console.warn("THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead."),n=JSON.parse(t.substring(65,t.length-2))}const r=i.parse(n);e&&e(r)},n,r)}parse(t){return new Em(t)}}let Cm;exports.FontLoader=Rm;const Pm={getContext:function(){return void 0===Cm&&(Cm=new(window.AudioContext||window.webkitAudioContext)),Cm},setContext:function(t){Cm=t}};exports.AudioContext=Pm;class Dm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setResponseType("arraybuffer"),s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{const o=n.slice(0);Pm.getContext().decodeAudioData(o,function(t){e(t)})}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}}exports.AudioLoader=Dm;class Im extends mm{constructor(t,e,n=1){super(void 0,n);const r=(new xi).set(t),i=(new xi).set(e),s=new Yn(r.r,r.g,r.b),o=new Yn(i.r,i.g,i.b),a=Math.sqrt(Math.PI),l=a*Math.sqrt(.75);this.sh.coefficients[0].copy(s).add(o).multiplyScalar(a),this.sh.coefficients[1].copy(s).sub(o).multiplyScalar(l)}}exports.HemisphereLightProbe=Im,Im.prototype.isHemisphereLightProbe=!0;class Bm extends mm{constructor(t,e=1){super(void 0,e);const n=(new xi).set(t);this.sh.coefficients[0].set(n.r,n.g,n.b).multiplyScalar(2*Math.sqrt(Math.PI))}}exports.AmbientLightProbe=Bm,Bm.prototype.isAmbientLightProbe=!0;const Nm=new wr,Fm=new wr;class Om{constructor(){this.type="StereoCamera",this.aspect=1,this.eyeSep=.064,this.cameraL=new xs,this.cameraL.layers.enable(1),this.cameraL.matrixAutoUpdate=!1,this.cameraR=new xs,this.cameraR.layers.enable(2),this.cameraR.matrixAutoUpdate=!1,this._cache={focus:null,fov:null,aspect:null,near:null,far:null,zoom:null,eyeSep:null}}update(t){const e=this._cache;if(e.focus!==t.focus||e.fov!==t.fov||e.aspect!==t.aspect*this.aspect||e.near!==t.near||e.far!==t.far||e.zoom!==t.zoom||e.eyeSep!==this.eyeSep){e.focus=t.focus,e.fov=t.fov,e.aspect=t.aspect*this.aspect,e.near=t.near,e.far=t.far,e.zoom=t.zoom,e.eyeSep=this.eyeSep;const n=t.projectionMatrix.clone(),r=e.eyeSep/2,i=r*e.near/e.focus,s=e.near*Math.tan(Fn.DEG2RAD*e.fov*.5)/e.zoom;let o,a;Fm.elements[12]=-r,Nm.elements[12]=r,o=-s*e.aspect+i,a=s*e.aspect+i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraL.projectionMatrix.copy(n),o=-s*e.aspect-i,a=s*e.aspect-i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraR.projectionMatrix.copy(n)}this.cameraL.matrixWorld.copy(t.matrixWorld).multiply(Fm),this.cameraR.matrixWorld.copy(t.matrixWorld).multiply(Nm)}}exports.StereoCamera=Om;class zm{constructor(t){this.autoStart=void 0===t||t,this.startTime=0,this.oldTime=0,this.elapsedTime=0,this.running=!1}start(){this.startTime=Gm(),this.oldTime=this.startTime,this.elapsedTime=0,this.running=!0}stop(){this.getElapsedTime(),this.running=!1,this.autoStart=!1}getElapsedTime(){return this.getDelta(),this.elapsedTime}getDelta(){let t=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){const e=Gm();t=(e-this.oldTime)/1e3,this.oldTime=e,this.elapsedTime+=t}return t}}function Gm(){return("undefined"==typeof performance?Date:performance).now()}exports.Clock=zm;const Hm=new Yn,Um=new Xn,km=new Yn,Vm=new Yn;class Wm extends Xr{constructor(){super(),this.type="AudioListener",this.context=Pm.getContext(),this.gain=this.context.createGain(),this.gain.connect(this.context.destination),this.filter=null,this.timeDelta=0,this._clock=new zm}getInput(){return this.gain}removeFilter(){return null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null),this}getFilter(){return this.filter}setFilter(t){return null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):this.gain.disconnect(this.context.destination),this.filter=t,this.gain.connect(this.filter),this.filter.connect(this.context.destination),this}getMasterVolume(){return this.gain.gain.value}setMasterVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}updateMatrixWorld(t){super.updateMatrixWorld(t);const e=this.context.listener,n=this.up;if(this.timeDelta=this._clock.getDelta(),this.matrixWorld.decompose(Hm,Um,km),Vm.set(0,0,-1).applyQuaternion(Um),e.positionX){const t=this.context.currentTime+this.timeDelta;e.positionX.linearRampToValueAtTime(Hm.x,t),e.positionY.linearRampToValueAtTime(Hm.y,t),e.positionZ.linearRampToValueAtTime(Hm.z,t),e.forwardX.linearRampToValueAtTime(Vm.x,t),e.forwardY.linearRampToValueAtTime(Vm.y,t),e.forwardZ.linearRampToValueAtTime(Vm.z,t),e.upX.linearRampToValueAtTime(n.x,t),e.upY.linearRampToValueAtTime(n.y,t),e.upZ.linearRampToValueAtTime(n.z,t)}else e.setPosition(Hm.x,Hm.y,Hm.z),e.setOrientation(Vm.x,Vm.y,Vm.z,n.x,n.y,n.z)}}exports.AudioListener=Wm;class jm extends Xr{constructor(t){super(),this.type="Audio",this.listener=t,this.context=t.context,this.gain=this.context.createGain(),this.gain.connect(t.getInput()),this.autoplay=!1,this.buffer=null,this.detune=0,this.loop=!1,this.loopStart=0,this.loopEnd=0,this.offset=0,this.duration=void 0,this.playbackRate=1,this.isPlaying=!1,this.hasPlaybackControl=!0,this.source=null,this.sourceType="empty",this._startedAt=0,this._progress=0,this._connected=!1,this.filters=[]}getOutput(){return this.gain}setNodeSource(t){return this.hasPlaybackControl=!1,this.sourceType="audioNode",this.source=t,this.connect(),this}setMediaElementSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaNode",this.source=this.context.createMediaElementSource(t),this.connect(),this}setMediaStreamSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaStreamNode",this.source=this.context.createMediaStreamSource(t),this.connect(),this}setBuffer(t){return this.buffer=t,this.sourceType="buffer",this.autoplay&&this.play(),this}play(t=0){if(!0===this.isPlaying)return void console.warn("THREE.Audio: Audio is already playing.");if(!1===this.hasPlaybackControl)return void console.warn("THREE.Audio: this Audio has no playback control.");this._startedAt=this.context.currentTime+t;const e=this.context.createBufferSource();return e.buffer=this.buffer,e.loop=this.loop,e.loopStart=this.loopStart,e.loopEnd=this.loopEnd,e.onended=this.onEnded.bind(this),e.start(this._startedAt,this._progress+this.offset,this.duration),this.isPlaying=!0,this.source=e,this.setDetune(this.detune),this.setPlaybackRate(this.playbackRate),this.connect()}pause(){if(!1!==this.hasPlaybackControl)return!0===this.isPlaying&&(this._progress+=Math.max(this.context.currentTime-this._startedAt,0)*this.playbackRate,!0===this.loop&&(this._progress=this._progress%(this.duration||this.buffer.duration)),this.source.stop(),this.source.onended=null,this.isPlaying=!1),this;console.warn("THREE.Audio: this Audio has no playback control.")}stop(){if(!1!==this.hasPlaybackControl)return this._progress=0,this.source.stop(),this.source.onended=null,this.isPlaying=!1,this;console.warn("THREE.Audio: this Audio has no playback control.")}connect(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].connect(this.filters[t]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());return this._connected=!0,this}disconnect(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].disconnect(this.filters[t]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this._connected=!1,this}getFilters(){return this.filters}setFilters(t){return t||(t=[]),!0===this._connected?(this.disconnect(),this.filters=t.slice(),this.connect()):this.filters=t.slice(),this}setDetune(t){if(this.detune=t,void 0!==this.source.detune)return!0===this.isPlaying&&this.source.detune.setTargetAtTime(this.detune,this.context.currentTime,.01),this}getDetune(){return this.detune}getFilter(){return this.getFilters()[0]}setFilter(t){return this.setFilters(t?[t]:[])}setPlaybackRate(t){if(!1!==this.hasPlaybackControl)return this.playbackRate=t,!0===this.isPlaying&&this.source.playbackRate.setTargetAtTime(this.playbackRate,this.context.currentTime,.01),this;console.warn("THREE.Audio: this Audio has no playback control.")}getPlaybackRate(){return this.playbackRate}onEnded(){this.isPlaying=!1}getLoop(){return!1===this.hasPlaybackControl?(console.warn("THREE.Audio: this Audio has no playback control."),!1):this.loop}setLoop(t){if(!1!==this.hasPlaybackControl)return this.loop=t,!0===this.isPlaying&&(this.source.loop=this.loop),this;console.warn("THREE.Audio: this Audio has no playback control.")}setLoopStart(t){return this.loopStart=t,this}setLoopEnd(t){return this.loopEnd=t,this}getVolume(){return this.gain.gain.value}setVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}}exports.Audio=jm;const qm=new Yn,Xm=new Xn,Ym=new Yn,Zm=new Yn;class Jm extends jm{constructor(t){super(t),this.panner=this.context.createPanner(),this.panner.panningModel="HRTF",this.panner.connect(this.gain)}getOutput(){return this.panner}getRefDistance(){return this.panner.refDistance}setRefDistance(t){return this.panner.refDistance=t,this}getRolloffFactor(){return this.panner.rolloffFactor}setRolloffFactor(t){return this.panner.rolloffFactor=t,this}getDistanceModel(){return this.panner.distanceModel}setDistanceModel(t){return this.panner.distanceModel=t,this}getMaxDistance(){return this.panner.maxDistance}setMaxDistance(t){return this.panner.maxDistance=t,this}setDirectionalCone(t,e,n){return this.panner.coneInnerAngle=t,this.panner.coneOuterAngle=e,this.panner.coneOuterGain=n,this}updateMatrixWorld(t){if(super.updateMatrixWorld(t),!0===this.hasPlaybackControl&&!1===this.isPlaying)return;this.matrixWorld.decompose(qm,Xm,Ym),Zm.set(0,0,1).applyQuaternion(Xm);const e=this.panner;if(e.positionX){const t=this.context.currentTime+this.listener.timeDelta;e.positionX.linearRampToValueAtTime(qm.x,t),e.positionY.linearRampToValueAtTime(qm.y,t),e.positionZ.linearRampToValueAtTime(qm.z,t),e.orientationX.linearRampToValueAtTime(Zm.x,t),e.orientationY.linearRampToValueAtTime(Zm.y,t),e.orientationZ.linearRampToValueAtTime(Zm.z,t)}else e.setPosition(qm.x,qm.y,qm.z),e.setOrientation(Zm.x,Zm.y,Zm.z)}}exports.PositionalAudio=Jm;class Qm{constructor(t,e=2048){this.analyser=t.context.createAnalyser(),this.analyser.fftSize=e,this.data=new Uint8Array(this.analyser.frequencyBinCount),t.getOutput().connect(this.analyser)}getFrequencyData(){return this.analyser.getByteFrequencyData(this.data),this.data}getAverageFrequency(){let t=0;const e=this.getFrequencyData();for(let n=0;n<e.length;n++)t+=e[n];return t/e.length}}exports.AudioAnalyser=Qm;class Km{constructor(t,e,n){let r,i,s;switch(this.binding=t,this.valueSize=n,e){case"quaternion":r=this._slerp,i=this._slerpAdditive,s=this._setAdditiveIdentityQuaternion,this.buffer=new Float64Array(6*n),this._workIndex=5;break;case"string":case"bool":r=this._select,i=this._select,s=this._setAdditiveIdentityOther,this.buffer=new Array(5*n);break;default:r=this._lerp,i=this._lerpAdditive,s=this._setAdditiveIdentityNumeric,this.buffer=new Float64Array(5*n)}this._mixBufferRegion=r,this._mixBufferRegionAdditive=i,this._setIdentity=s,this._origIndex=3,this._addIndex=4,this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,this.useCount=0,this.referenceCount=0}accumulate(t,e){const n=this.buffer,r=this.valueSize,i=t*r+r;let s=this.cumulativeWeight;if(0===s){for(let t=0;t!==r;++t)n[i+t]=n[t];s=e}else{const t=e/(s+=e);this._mixBufferRegion(n,i,0,t,r)}this.cumulativeWeight=s}accumulateAdditive(t){const e=this.buffer,n=this.valueSize,r=n*this._addIndex;0===this.cumulativeWeightAdditive&&this._setIdentity(),this._mixBufferRegionAdditive(e,r,0,t,n),this.cumulativeWeightAdditive+=t}apply(t){const e=this.valueSize,n=this.buffer,r=t*e+e,i=this.cumulativeWeight,s=this.cumulativeWeightAdditive,o=this.binding;if(this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,i<1){const t=e*this._origIndex;this._mixBufferRegion(n,r,t,1-i,e)}s>0&&this._mixBufferRegionAdditive(n,r,this._addIndex*e,1,e);for(let a=e,l=e+e;a!==l;++a)if(n[a]!==n[a+e]){o.setValue(n,r);break}}saveOriginalState(){const t=this.binding,e=this.buffer,n=this.valueSize,r=n*this._origIndex;t.getValue(e,r);for(let i=n,s=r;i!==s;++i)e[i]=e[r+i%n];this._setIdentity(),this.cumulativeWeight=0,this.cumulativeWeightAdditive=0}restoreOriginalState(){const t=3*this.valueSize;this.binding.setValue(this.buffer,t)}_setAdditiveIdentityNumeric(){const t=this._addIndex*this.valueSize,e=t+this.valueSize;for(let n=t;n<e;n++)this.buffer[n]=0}_setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric(),this.buffer[this._addIndex*this.valueSize+3]=1}_setAdditiveIdentityOther(){const t=this._origIndex*this.valueSize,e=this._addIndex*this.valueSize;for(let n=0;n<this.valueSize;n++)this.buffer[e+n]=this.buffer[t+n]}_select(t,e,n,r,i){if(r>=.5)for(let s=0;s!==i;++s)t[e+s]=t[n+s]}_slerp(t,e,n,r){Xn.slerpFlat(t,e,t,e,t,n,r)}_slerpAdditive(t,e,n,r,i){const s=this._workIndex*i;Xn.multiplyQuaternionsFlat(t,s,t,e,t,n),Xn.slerpFlat(t,e,t,e,t,s,r)}_lerp(t,e,n,r,i){const s=1-r;for(let o=0;o!==i;++o){const i=e+o;t[i]=t[i]*s+t[n+o]*r}}_lerpAdditive(t,e,n,r,i){for(let s=0;s!==i;++s){const i=e+s;t[i]=t[i]+t[n+s]*r}}}exports.PropertyMixer=Km;const $m="\\[\\]\\.:\\/",tf=new RegExp("[\\[\\]\\.:\\/]","g"),ef="[^\\[\\]\\.:\\/]",nf="[^"+"\\[\\]\\.:\\/".replace("\\.","")+"]",rf=/((?:WC+[\/:])*)/.source.replace("WC",ef),sf=/(WCOD+)?/.source.replace("WCOD",nf),of=/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC",ef),af=/\.(WC+)(?:\[(.+)\])?/.source.replace("WC",ef),lf=new RegExp("^"+rf+sf+of+af+"$"),cf=["material","materials","bones"];function hf(t,e,n){const r=n||uf.parseTrackName(e);this._targetGroup=t,this._bindings=t.subscribe_(e,r)}function uf(t,e,n){this.path=e,this.parsedPath=n||uf.parseTrackName(e),this.node=uf.findNode(t,this.parsedPath.nodeName)||t,this.rootNode=t}Object.assign(hf.prototype,{getValue:function(t,e){this.bind();const n=this._targetGroup.nCachedObjects_,r=this._bindings[n];void 0!==r&&r.getValue(t,e)},setValue:function(t,e){const n=this._bindings;for(let r=this._targetGroup.nCachedObjects_,i=n.length;r!==i;++r)n[r].setValue(t,e)},bind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].bind()},unbind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].unbind()}}),Object.assign(uf,{Composite:hf,create:function(t,e,n){return t&&t.isAnimationObjectGroup?new uf.Composite(t,e,n):new uf(t,e,n)},sanitizeNodeName:function(t){return t.replace(/\s/g,"_").replace(tf,"")},parseTrackName:function(t){const e=lf.exec(t);if(!e)throw new Error("PropertyBinding: Cannot parse trackName: "+t);const n={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},r=n.nodeName&&n.nodeName.lastIndexOf(".");if(void 0!==r&&-1!==r){const t=n.nodeName.substring(r+1);-1!==cf.indexOf(t)&&(n.nodeName=n.nodeName.substring(0,r),n.objectName=t)}if(null===n.propertyName||0===n.propertyName.length)throw new Error("PropertyBinding: can not parse propertyName from trackName: "+t);return n},findNode:function(t,e){if(!e||""===e||"."===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){const n=t.skeleton.getBoneByName(e);if(void 0!==n)return n}if(t.children){const n=function(t){for(let r=0;r<t.length;r++){const i=t[r];if(i.name===e||i.uuid===e)return i;const s=n(i.children);if(s)return s}return null},r=n(t.children);if(r)return r}return null}}),Object.assign(uf.prototype,{_getValue_unavailable:function(){},_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(t,e){t[e]=this.node[this.propertyName]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)t[e++]=n[r]},function(t,e){t[e]=this.resolvedProperty[this.propertyIndex]},function(t,e){this.resolvedProperty.toArray(t,e)}],SetterByBindingTypeAndVersioning:[[function(t,e){this.targetObject[this.propertyName]=t[e]},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.needsUpdate=!0},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty[this.propertyIndex]=t[e]},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty.fromArray(t,e)},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}]],getValue:function(t,e){this.bind(),this.getValue(t,e)},setValue:function(t,e){this.bind(),this.setValue(t,e)},bind:function(){let t=this.node;const e=this.parsedPath,n=e.objectName,r=e.propertyName;let i=e.propertyIndex;if(t||(t=uf.findNode(this.rootNode,e.nodeName)||this.rootNode,this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.error("THREE.PropertyBinding: Trying to update node for track: "+this.path+" but it wasn't found.");if(n){let r=e.objectIndex;switch(n){case"materials":if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.materials)return void console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);t=t.material.materials;break;case"bones":if(!t.skeleton)return void console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);t=t.skeleton.bones;for(let e=0;e<t.length;e++)if(t[e].name===r){r=e;break}break;default:if(void 0===t[n])return void console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",this);t=t[n]}if(void 0!==r){if(void 0===t[r])return void console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,t);t=t[r]}}const s=t[r];if(void 0===s){const n=e.nodeName;return void console.error("THREE.PropertyBinding: Trying to update property for track: "+n+"."+r+" but it wasn't found.",t)}let o=this.Versioning.None;this.targetObject=t,void 0!==t.needsUpdate?o=this.Versioning.NeedsUpdate:void 0!==t.matrixWorldNeedsUpdate&&(o=this.Versioning.MatrixWorldNeedsUpdate);let a=this.BindingType.Direct;if(void 0!==i){if("morphTargetInfluences"===r){if(!t.geometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);if(!t.geometry.isBufferGeometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.",this);if(!t.geometry.morphAttributes)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);void 0!==t.morphTargetDictionary[i]&&(i=t.morphTargetDictionary[i])}a=this.BindingType.ArrayElement,this.resolvedProperty=s,this.propertyIndex=i}else void 0!==s.fromArray&&void 0!==s.toArray?(a=this.BindingType.HasFromToArray,this.resolvedProperty=s):Array.isArray(s)?(a=this.BindingType.EntireArray,this.resolvedProperty=s):this.propertyName=r;this.getValue=this.GetterByBindingType[a],this.setValue=this.SetterByBindingTypeAndVersioning[a][o]},unbind:function(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}),Object.assign(uf.prototype,{_getValue_unbound:uf.prototype.getValue,_setValue_unbound:uf.prototype.setValue});class pf{constructor(){this.uuid=Fn.generateUUID(),this._objects=Array.prototype.slice.call(arguments),this.nCachedObjects_=0;const t={};this._indicesByUUID=t;for(let n=0,r=arguments.length;n!==r;++n)t[arguments[n].uuid]=n;this._paths=[],this._parsedPaths=[],this._bindings=[],this._bindingsIndicesByPath={};const e=this;this.stats={objects:{get total(){return e._objects.length},get inUse(){return this.total-e.nCachedObjects_}},get bindingsPerObject(){return e._bindings.length}}}add(){const t=this._objects,e=this._indicesByUUID,n=this._paths,r=this._parsedPaths,i=this._bindings,s=i.length;let o=void 0,a=t.length,l=this.nCachedObjects_;for(let c=0,h=arguments.length;c!==h;++c){const h=arguments[c],u=h.uuid;let p=e[u];if(void 0===p){p=a++,e[u]=p,t.push(h);for(let t=0,e=s;t!==e;++t)i[t].push(new uf(h,n[t],r[t]))}else if(p<l){o=t[p];const a=--l,c=t[a];e[c.uuid]=p,t[p]=c,e[u]=a,t[a]=h;for(let t=0,e=s;t!==e;++t){const e=i[t],s=e[a];let o=e[p];e[p]=s,void 0===o&&(o=new uf(h,n[t],r[t])),e[a]=o}}else t[p]!==o&&console.error("THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.")}this.nCachedObjects_=l}remove(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_;for(let s=0,o=arguments.length;s!==o;++s){const o=arguments[s],a=o.uuid,l=e[a];if(void 0!==l&&l>=i){const s=i++,c=t[s];e[c.uuid]=l,t[l]=c,e[a]=s,t[s]=o;for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[s],i=e[l];e[l]=r,e[s]=i}}}this.nCachedObjects_=i}uncache(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_,s=t.length;for(let o=0,a=arguments.length;o!==a;++o){const a=arguments[o].uuid,l=e[a];if(void 0!==l)if(delete e[a],l<i){const o=--i,a=t[o],c=--s,h=t[c];e[a.uuid]=l,t[l]=a,e[h.uuid]=o,t[o]=h,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[o],i=e[c];e[l]=r,e[o]=i,e.pop()}}else{const i=--s,o=t[i];i>0&&(e[o.uuid]=l),t[l]=o,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t];e[l]=e[i],e.pop()}}}this.nCachedObjects_=i}subscribe_(t,e){const n=this._bindingsIndicesByPath;let r=n[t];const i=this._bindings;if(void 0!==r)return i[r];const s=this._paths,o=this._parsedPaths,a=this._objects,l=a.length,c=this.nCachedObjects_,h=new Array(l);r=i.length,n[t]=r,s.push(t),o.push(e),i.push(h);for(let u=c,p=a.length;u!==p;++u){const n=a[u];h[u]=new uf(n,t,e)}return h}unsubscribe_(t){const e=this._bindingsIndicesByPath,n=e[t];if(void 0!==n){const r=this._paths,i=this._parsedPaths,s=this._bindings,o=s.length-1,a=s[o];e[t[o]]=n,s[n]=a,s.pop(),i[n]=i[o],i.pop(),r[n]=r[o],r.pop()}}}exports.AnimationObjectGroup=pf,pf.prototype.isAnimationObjectGroup=!0;class df{constructor(t,e,n=null,r=e.blendMode){this._mixer=t,this._clip=e,this._localRoot=n,this.blendMode=r;const i=e.tracks,s=i.length,o=new Array(s),a={endingStart:Ge,endingEnd:Ge};for(let l=0;l!==s;++l){const t=i[l].createInterpolant(null);o[l]=t,t.settings=a}this._interpolantSettings=a,this._interpolants=o,this._propertyBindings=new Array(s),this._cacheIndex=null,this._byClipCacheIndex=null,this._timeScaleInterpolant=null,this._weightInterpolant=null,this.loop=Be,this._loopCount=-1,this._startTime=null,this.time=0,this.timeScale=1,this._effectiveTimeScale=1,this.weight=1,this._effectiveWeight=1,this.repetitions=1/0,this.paused=!1,this.enabled=!0,this.clampWhenFinished=!1,this.zeroSlopeAtStart=!0,this.zeroSlopeAtEnd=!0}play(){return this._mixer._activateAction(this),this}stop(){return this._mixer._deactivateAction(this),this.reset()}reset(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()}isRunning(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)}isScheduled(){return this._mixer._isActiveAction(this)}startAt(t){return this._startTime=t,this}setLoop(t,e){return this.loop=t,this.repetitions=e,this}setEffectiveWeight(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()}getEffectiveWeight(){return this._effectiveWeight}fadeIn(t){return this._scheduleFading(t,0,1)}fadeOut(t){return this._scheduleFading(t,1,0)}crossFadeFrom(t,e,n){if(t.fadeOut(e),this.fadeIn(e),n){const n=this._clip.duration,r=t._clip.duration,i=r/n,s=n/r;t.warp(1,i,e),this.warp(s,1,e)}return this}crossFadeTo(t,e,n){return t.crossFadeFrom(this,e,n)}stopFading(){const t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}setEffectiveTimeScale(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()}getEffectiveTimeScale(){return this._effectiveTimeScale}setDuration(t){return this.timeScale=this._clip.duration/t,this.stopWarping()}syncWith(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()}halt(t){return this.warp(this._effectiveTimeScale,0,t)}warp(t,e,n){const r=this._mixer,i=r.time,s=this.timeScale;let o=this._timeScaleInterpolant;null===o&&(o=r._lendControlInterpolant(),this._timeScaleInterpolant=o);const a=o.parameterPositions,l=o.sampleValues;return a[0]=i,a[1]=i+n,l[0]=t/s,l[1]=e/s,this}stopWarping(){const t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}getMixer(){return this._mixer}getClip(){return this._clip}getRoot(){return this._localRoot||this._mixer._root}_update(t,e,n,r){if(!this.enabled)return void this._updateWeight(t);const i=this._startTime;if(null!==i){const r=(t-i)*n;if(r<0||0===n)return;this._startTime=null,e=n*r}e*=this._updateTimeScale(t);const s=this._updateTime(e),o=this._updateWeight(t);if(o>0){const t=this._interpolants,e=this._propertyBindings;switch(this.blendMode){case Ve:for(let n=0,r=t.length;n!==r;++n)t[n].evaluate(s),e[n].accumulateAdditive(o);break;case ke:default:for(let n=0,i=t.length;n!==i;++n)t[n].evaluate(s),e[n].accumulate(r,o)}}}_updateWeight(t){let e=0;if(this.enabled){e=this.weight;const n=this._weightInterpolant;if(null!==n){const r=n.evaluate(t)[0];e*=r,t>n.parameterPositions[1]&&(this.stopFading(),0===r&&(this.enabled=!1))}}return this._effectiveWeight=e,e}_updateTimeScale(t){let e=0;if(!this.paused){e=this.timeScale;const n=this._timeScaleInterpolant;if(null!==n){e*=n.evaluate(t)[0],t>n.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e}_updateTime(t){const e=this._clip.duration,n=this.loop;let r=this.time+t,i=this._loopCount;const s=n===Ne;if(0===t)return-1===i?r:s&&1==(1&i)?e-r:r;if(n===Ie){-1===i&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(r>=e)r=e;else{if(!(r<0)){this.time=r;break t}r=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t<0?-1:1})}}else{if(-1===i&&(t>=0?(i=0,this._setEndings(!0,0===this.repetitions,s)):this._setEndings(0===this.repetitions,!0,s)),r>=e||r<0){const n=Math.floor(r/e);r-=e*n,i+=Math.abs(n);const o=this.repetitions-i;if(o<=0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,r=t>0?e:0,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t>0?1:-1});else{if(1===o){const e=t<0;this._setEndings(e,!e,s)}else this._setEndings(!1,!1,s);this._loopCount=i,this.time=r,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:n})}}else this.time=r;if(s&&1==(1&i))return e-r}return r}_setEndings(t,e,n){const r=this._interpolantSettings;n?(r.endingStart=He,r.endingEnd=He):(r.endingStart=t?this.zeroSlopeAtStart?He:Ge:Ue,r.endingEnd=e?this.zeroSlopeAtEnd?He:Ge:Ue)}_scheduleFading(t,e,n){const r=this._mixer,i=r.time;let s=this._weightInterpolant;null===s&&(s=r._lendControlInterpolant(),this._weightInterpolant=s);const o=s.parameterPositions,a=s.sampleValues;return o[0]=i,a[0]=e,o[1]=i+t,a[1]=n,this}}class mf extends In{constructor(t){super(),this._root=t,this._initMemoryManager(),this._accuIndex=0,this.time=0,this.timeScale=1}_bindAction(t,e){const n=t._localRoot||this._root,r=t._clip.tracks,i=r.length,s=t._propertyBindings,o=t._interpolants,a=n.uuid,l=this._bindingsByRootAndName;let c=l[a];void 0===c&&(c={},l[a]=c);for(let h=0;h!==i;++h){const t=r[h],i=t.name;let l=c[i];if(void 0!==l)s[h]=l;else{if(void 0!==(l=s[h])){null===l._cacheIndex&&(++l.referenceCount,this._addInactiveBinding(l,a,i));continue}const r=e&&e._propertyBindings[h].binding.parsedPath;++(l=new Km(uf.create(n,i,r),t.ValueTypeName,t.getValueSize())).referenceCount,this._addInactiveBinding(l,a,i),s[h]=l}o[h].resultBuffer=l.buffer}}_activateAction(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){const e=(t._localRoot||this._root).uuid,n=t._clip.uuid,r=this._actionsByClip[n];this._bindAction(t,r&&r.knownActions[0]),this._addInactiveAction(t,n,e)}const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==n.useCount++&&(this._lendBinding(n),n.saveOriginalState())}this._lendAction(t)}}_deactivateAction(t){if(this._isActiveAction(t)){const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==--n.useCount&&(n.restoreOriginalState(),this._takeBackBinding(n))}this._takeBackAction(t)}}_initMemoryManager(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;const t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}}_isActiveAction(t){const e=t._cacheIndex;return null!==e&&e<this._nActiveActions}_addInactiveAction(t,e,n){const r=this._actions,i=this._actionsByClip;let s=i[e];if(void 0===s)s={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,i[e]=s;else{const e=s.knownActions;t._byClipCacheIndex=e.length,e.push(t)}t._cacheIndex=r.length,r.push(t),s.actionByRoot[n]=t}_removeInactiveAction(t){const e=this._actions,n=e[e.length-1],r=t._cacheIndex;n._cacheIndex=r,e[r]=n,e.pop(),t._cacheIndex=null;const i=t._clip.uuid,s=this._actionsByClip,o=s[i],a=o.knownActions,l=a[a.length-1],c=t._byClipCacheIndex;l._byClipCacheIndex=c,a[c]=l,a.pop(),t._byClipCacheIndex=null,delete o.actionByRoot[(t._localRoot||this._root).uuid],0===a.length&&delete s[i],this._removeInactiveBindingsForAction(t)}_removeInactiveBindingsForAction(t){const e=t._propertyBindings;for(let n=0,r=e.length;n!==r;++n){const t=e[n];0==--t.referenceCount&&this._removeInactiveBinding(t)}}_lendAction(t){const e=this._actions,n=t._cacheIndex,r=this._nActiveActions++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackAction(t){const e=this._actions,n=t._cacheIndex,r=--this._nActiveActions,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_addInactiveBinding(t,e,n){const r=this._bindingsByRootAndName,i=this._bindings;let s=r[e];void 0===s&&(s={},r[e]=s),s[n]=t,t._cacheIndex=i.length,i.push(t)}_removeInactiveBinding(t){const e=this._bindings,n=t.binding,r=n.rootNode.uuid,i=n.path,s=this._bindingsByRootAndName,o=s[r],a=e[e.length-1],l=t._cacheIndex;a._cacheIndex=l,e[l]=a,e.pop(),delete o[i],0===Object.keys(o).length&&delete s[r]}_lendBinding(t){const e=this._bindings,n=t._cacheIndex,r=this._nActiveBindings++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackBinding(t){const e=this._bindings,n=t._cacheIndex,r=--this._nActiveBindings,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_lendControlInterpolant(){const t=this._controlInterpolants,e=this._nActiveControlInterpolants++;let n=t[e];return void 0===n&&((n=new Yp(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer)).__cacheIndex=e,t[e]=n),n}_takeBackControlInterpolant(t){const e=this._controlInterpolants,n=t.__cacheIndex,r=--this._nActiveControlInterpolants,i=e[r];t.__cacheIndex=r,e[r]=t,i.__cacheIndex=n,e[n]=i}clipAction(t,e,n){const r=e||this._root,i=r.uuid;let s="string"==typeof t?id.findByName(r,t):t;const o=null!==s?s.uuid:t,a=this._actionsByClip[o];let l=null;if(void 0===n&&(n=null!==s?s.blendMode:ke),void 0!==a){const t=a.actionByRoot[i];if(void 0!==t&&t.blendMode===n)return t;l=a.knownActions[0],null===s&&(s=l._clip)}if(null===s)return null;const c=new df(this,s,e,n);return this._bindAction(c,l),this._addInactiveAction(c,o,i),c}existingAction(t,e){const n=e||this._root,r=n.uuid,i="string"==typeof t?id.findByName(n,t):t,s=i?i.uuid:t,o=this._actionsByClip[s];return void 0!==o&&o.actionByRoot[r]||null}stopAllAction(){const t=this._actions;for(let e=this._nActiveActions-1;e>=0;--e)t[e].stop();return this}update(t){t*=this.timeScale;const e=this._actions,n=this._nActiveActions,r=this.time+=t,i=Math.sign(t),s=this._accuIndex^=1;for(let l=0;l!==n;++l){e[l]._update(r,t,i,s)}const o=this._bindings,a=this._nActiveBindings;for(let l=0;l!==a;++l)o[l].apply(s);return this}setTime(t){this.time=0;for(let e=0;e<this._actions.length;e++)this._actions[e].time=0;return this.update(t)}getRoot(){return this._root}uncacheClip(t){const e=this._actions,n=t.uuid,r=this._actionsByClip,i=r[n];if(void 0!==i){const t=i.knownActions;for(let n=0,r=t.length;n!==r;++n){const r=t[n];this._deactivateAction(r);const i=r._cacheIndex,s=e[e.length-1];r._cacheIndex=null,r._byClipCacheIndex=null,s._cacheIndex=i,e[i]=s,e.pop(),this._removeInactiveBindingsForAction(r)}delete r[n]}}uncacheRoot(t){const e=t.uuid,n=this._actionsByClip;for(const i in n){const t=n[i].actionByRoot[e];void 0!==t&&(this._deactivateAction(t),this._removeInactiveAction(t))}const r=this._bindingsByRootAndName[e];if(void 0!==r)for(const i in r){const t=r[i];t.restoreOriginalState(),this._removeInactiveBinding(t)}}uncacheAction(t,e){const n=this.existingAction(t,e);null!==n&&(this._deactivateAction(n),this._removeInactiveAction(n))}}exports.AnimationMixer=mf,mf.prototype._controlInterpolantsResultBuffer=new Float32Array(1);class ff{constructor(t){"string"==typeof t&&(console.warn("THREE.Uniform: Type parameter is no longer needed."),t=arguments[1]),this.value=t}clone(){return new ff(void 0===this.value.clone?this.value:this.value.clone())}}function gf(t,e,n){_h.call(this,t,e),this.meshPerAttribute=n||1}function xf(t,e,n,r,i){this.buffer=t,this.type=e,this.itemSize=n,this.elementSize=r,this.count=i,this.version=0}function vf(t,e,n=0,r=1/0){this.ray=new br(t,e),this.near=n,this.far=r,this.camera=null,this.layers=new Ir,this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}},Object.defineProperties(this.params,{PointCloud:{get:function(){return console.warn("THREE.Raycaster: params.PointCloud has been renamed to params.Points."),this.Points}}})}function yf(t,e){return t.distance-e.distance}function _f(t,e,n,r){if(t.layers.test(e.layers)&&t.raycast(e,n),!0===r){const r=t.children;for(let t=0,i=r.length;t<i;t++)_f(r[t],e,n,!0)}}exports.Uniform=ff,gf.prototype=Object.assign(Object.create(_h.prototype),{constructor:gf,isInstancedInterleavedBuffer:!0,copy:function(t){return _h.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},clone:function(t){const e=_h.prototype.clone.call(this,t);return e.meshPerAttribute=this.meshPerAttribute,e},toJSON:function(t){const e=_h.prototype.toJSON.call(this,t);return e.isInstancedInterleavedBuffer=!0,e.meshPerAttribute=this.meshPerAttribute,e}}),Object.defineProperty(xf.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(xf.prototype,{isGLBufferAttribute:!0,setBuffer:function(t){return this.buffer=t,this},setType:function(t,e){return this.type=t,this.elementSize=e,this},setItemSize:function(t){return this.itemSize=t,this},setCount:function(t){return this.count=t,this}}),Object.assign(vf.prototype,{set:function(t,e){this.ray.set(t,e)},setFromCamera:function(t,e){e&&e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize(),this.camera=e):e&&e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld),this.camera=e):console.error("THREE.Raycaster: Unsupported camera type: "+e.type)},intersectObject:function(t,e=!1,n=[]){return _f(t,this,n,e),n.sort(yf),n},intersectObjects:function(t,e=!1,n=[]){for(let r=0,i=t.length;r<i;r++)_f(t[r],this,n,e);return n.sort(yf),n}});class bf{constructor(t=1,e=0,n=0){return this.radius=t,this.phi=e,this.theta=n,this}set(t,e,n){return this.radius=t,this.phi=e,this.theta=n,this}copy(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this}makeSafe(){return this.phi=Math.max(1e-6,Math.min(Math.PI-1e-6,this.phi)),this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+e*e+n*n),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t,n),this.phi=Math.acos(Fn.clamp(e/this.radius,-1,1))),this}clone(){return(new this.constructor).copy(this)}}exports.Spherical=bf;class wf{constructor(t=1,e=0,n=0){return this.radius=t,this.theta=e,this.y=n,this}set(t,e,n){return this.radius=t,this.theta=e,this.y=n,this}copy(t){return this.radius=t.radius,this.theta=t.theta,this.y=t.y,this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+n*n),this.theta=Math.atan2(t,n),this.y=e,this}clone(){return(new this.constructor).copy(this)}}exports.Cylindrical=wf;const Mf=new On;class Sf{constructor(t=new On(1/0,1/0),e=new On(-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=Mf.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=1/0,this.max.x=this.max.y=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y}getCenter(t){return void 0===t&&(console.warn("THREE.Box2: .getCenter() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box2: .getSize() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box2: .getParameter() target is now required"),e=new On),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y)}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box2: .clampPoint() target is now required"),e=new On),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return Mf.copy(t).clamp(this.min,this.max).sub(t).length()}intersect(t){return this.min.max(t.min),this.max.min(t.max),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box2=Sf,Sf.prototype.isBox2=!0;const Tf=new Yn,Ef=new Yn;class Af{constructor(t=new Yn,e=new Yn){this.start=t,this.end=e}set(t,e){return this.start.copy(t),this.end.copy(e),this}copy(t){return this.start.copy(t.start),this.end.copy(t.end),this}getCenter(t){return void 0===t&&(console.warn("THREE.Line3: .getCenter() target is now required"),t=new Yn),t.addVectors(this.start,this.end).multiplyScalar(.5)}delta(t){return void 0===t&&(console.warn("THREE.Line3: .delta() target is now required"),t=new Yn),t.subVectors(this.end,this.start)}distanceSq(){return this.start.distanceToSquared(this.end)}distance(){return this.start.distanceTo(this.end)}at(t,e){return void 0===e&&(console.warn("THREE.Line3: .at() target is now required"),e=new Yn),this.delta(e).multiplyScalar(t).add(this.start)}closestPointToPointParameter(t,e){Tf.subVectors(t,this.start),Ef.subVectors(this.end,this.start);const n=Ef.dot(Ef);let r=Ef.dot(Tf)/n;return e&&(r=Fn.clamp(r,0,1)),r}closestPointToPoint(t,e,n){const r=this.closestPointToPointParameter(t,e);return void 0===n&&(console.warn("THREE.Line3: .closestPointToPoint() target is now required"),n=new Yn),this.delta(n).multiplyScalar(r).add(this.start)}applyMatrix4(t){return this.start.applyMatrix4(t),this.end.applyMatrix4(t),this}equals(t){return t.start.equals(this.start)&&t.end.equals(this.end)}clone(){return(new this.constructor).copy(this)}}function Lf(t){Xr.call(this),this.material=t,this.render=function(){},this.hasPositions=!1,this.hasNormals=!1,this.hasColors=!1,this.hasUvs=!1,this.positionArray=null,this.normalArray=null,this.colorArray=null,this.uvArray=null,this.count=0}exports.Line3=Af,Lf.prototype=Object.create(Xr.prototype),Lf.prototype.constructor=Lf,Lf.prototype.isImmediateRenderObject=!0;const Rf=new Yn;class Cf extends Xr{constructor(t,e){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=e;const n=new ki,r=[0,0,0,0,0,1,0,0,0,1,0,1,0,0,0,-1,0,1,0,0,0,0,1,1,0,0,0,0,-1,1];for(let s=0,o=1,a=32;s<a;s++,o++){const t=s/a*Math.PI*2,e=o/a*Math.PI*2;r.push(Math.cos(t),Math.sin(t),1,Math.cos(e),Math.sin(e),1)}n.setAttribute("position",new Ci(r,3));const i=new ru({fog:!1,toneMapped:!1});this.cone=new pu(n,i),this.add(this.cone),this.update()}dispose(){this.cone.geometry.dispose(),this.cone.material.dispose()}update(){this.light.updateMatrixWorld();const t=this.light.distance?this.light.distance:1e3,e=t*Math.tan(this.light.angle);this.cone.scale.set(e,e,t),Rf.setFromMatrixPosition(this.light.target.matrixWorld),this.cone.lookAt(Rf),void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}exports.SpotLightHelper=Cf;const Pf=new Yn,Df=new wr,If=new wr;class Bf extends pu{constructor(t){const e=Nf(t),n=new ki,r=[],i=[],s=new xi(0,0,1),o=new xi(0,1,0);for(let a=0;a<e.length;a++){const t=e[a];t.parent&&t.parent.isBone&&(r.push(0,0,0),r.push(0,0,0),i.push(s.r,s.g,s.b),i.push(o.r,o.g,o.b))}n.setAttribute("position",new Ci(r,3)),n.setAttribute("color",new Ci(i,3)),super(n,new ru({vertexColors:!0,depthTest:!1,depthWrite:!1,toneMapped:!1,transparent:!0})),this.type="SkeletonHelper",this.isSkeletonHelper=!0,this.root=t,this.bones=e,this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1}updateMatrixWorld(t){const e=this.bones,n=this.geometry,r=n.getAttribute("position");If.copy(this.root.matrixWorld).invert();for(let i=0,s=0;i<e.length;i++){const t=e[i];t.parent&&t.parent.isBone&&(Df.multiplyMatrices(If,t.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s,Pf.x,Pf.y,Pf.z),Df.multiplyMatrices(If,t.parent.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s+1,Pf.x,Pf.y,Pf.z),s+=2)}n.getAttribute("position").needsUpdate=!0,super.updateMatrixWorld(t)}}function Nf(t){const e=[];t&&t.isBone&&e.push(t);for(let n=0;n<t.children.length;n++)e.push.apply(e,Nf(t.children[n]));return e}exports.SkeletonHelper=Bf;class Ff extends os{constructor(t,e,n){super(new Ep(e,4,2),new vi({wireframe:!0,fog:!1,toneMapped:!1})),this.light=t,this.light.updateMatrixWorld(),this.color=n,this.type="PointLightHelper",this.matrix=this.light.matrixWorld,this.matrixAutoUpdate=!1,this.update()}dispose(){this.geometry.dispose(),this.material.dispose()}update(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)}}exports.PointLightHelper=Ff;const Of=new Yn,zf=new xi,Gf=new xi;class Hf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n;const r=new bp(e);r.rotateY(.5*Math.PI),this.material=new vi({wireframe:!0,fog:!1,toneMapped:!1}),void 0===this.color&&(this.material.vertexColors=!0);const i=r.getAttribute("position"),s=new Float32Array(3*i.count);r.setAttribute("color",new bi(s,3)),this.add(new os(r,this.material)),this.update()}dispose(){this.children[0].geometry.dispose(),this.children[0].material.dispose()}update(){const t=this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{const e=t.geometry.getAttribute("color");zf.copy(this.light.color),Gf.copy(this.light.groundColor);for(let t=0,n=e.count;t<n;t++){const r=t<n/2?zf:Gf;e.setXYZ(t,r.r,r.g,r.b)}e.needsUpdate=!0}t.lookAt(Of.setFromMatrixPosition(this.light.matrixWorld).negate())}}exports.HemisphereLightHelper=Hf;class Uf extends pu{constructor(t=10,e=10,n=4473924,r=8947848){n=new xi(n),r=new xi(r);const i=e/2,s=t/e,o=t/2,a=[],l=[];for(let h=0,u=0,p=-o;h<=e;h++,p+=s){a.push(-o,0,p,o,0,p),a.push(p,0,-o,p,0,o);const t=h===i?n:r;t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3}const c=new ki;c.setAttribute("position",new Ci(a,3)),c.setAttribute("color",new Ci(l,3)),super(c,new ru({vertexColors:!0,toneMapped:!1})),this.type="GridHelper"}}exports.GridHelper=Uf;class kf extends pu{constructor(t=10,e=16,n=8,r=64,i=4473924,s=8947848){i=new xi(i),s=new xi(s);const o=[],a=[];for(let c=0;c<=e;c++){const n=c/e*(2*Math.PI),r=Math.sin(n)*t,l=Math.cos(n)*t;o.push(0,0,0),o.push(r,0,l);const h=1&c?i:s;a.push(h.r,h.g,h.b),a.push(h.r,h.g,h.b)}for(let c=0;c<=n;c++){const e=1&c?i:s,l=t-t/n*c;for(let t=0;t<r;t++){let n=t/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l;o.push(i,0,s),a.push(e.r,e.g,e.b),n=(t+1)/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l,o.push(i,0,s),a.push(e.r,e.g,e.b)}}const l=new ki;l.setAttribute("position",new Ci(o,3)),l.setAttribute("color",new Ci(a,3)),super(l,new ru({vertexColors:!0,toneMapped:!1})),this.type="PolarGridHelper"}}exports.PolarGridHelper=kf;const Vf=new Yn,Wf=new Yn,jf=new Yn;class qf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n,void 0===e&&(e=1);let r=new ki;r.setAttribute("position",new Ci([-e,e,0,e,e,0,e,-e,0,-e,-e,0,-e,e,0],3));const i=new ru({fog:!1,toneMapped:!1});this.lightPlane=new cu(r,i),this.add(this.lightPlane),(r=new ki).setAttribute("position",new Ci([0,0,0,0,0,1],3)),this.targetLine=new cu(r,i),this.add(this.targetLine),this.update()}dispose(){this.lightPlane.geometry.dispose(),this.lightPlane.material.dispose(),this.targetLine.geometry.dispose(),this.targetLine.material.dispose()}update(){Vf.setFromMatrixPosition(this.light.matrixWorld),Wf.setFromMatrixPosition(this.light.target.matrixWorld),jf.subVectors(Wf,Vf),this.lightPlane.lookAt(Wf),void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color)),this.targetLine.lookAt(Wf),this.targetLine.scale.z=jf.length()}}exports.DirectionalLightHelper=qf;const Xf=new Yn,Yf=new gs;class Zf extends pu{constructor(t){const e=new ki,n=new ru({color:16777215,vertexColors:!0,toneMapped:!1}),r=[],i=[],s={},o=new xi(16755200),a=new xi(16711680),l=new xi(43775),c=new xi(16777215),h=new xi(3355443);function u(t,e,n){p(t,n),p(e,n)}function p(t,e){r.push(0,0,0),i.push(e.r,e.g,e.b),void 0===s[t]&&(s[t]=[]),s[t].push(r.length/3-1)}u("n1","n2",o),u("n2","n4",o),u("n4","n3",o),u("n3","n1",o),u("f1","f2",o),u("f2","f4",o),u("f4","f3",o),u("f3","f1",o),u("n1","f1",o),u("n2","f2",o),u("n3","f3",o),u("n4","f4",o),u("p","n1",a),u("p","n2",a),u("p","n3",a),u("p","n4",a),u("u1","u2",l),u("u2","u3",l),u("u3","u1",l),u("c","t",c),u("p","c",h),u("cn1","cn2",h),u("cn3","cn4",h),u("cf1","cf2",h),u("cf3","cf4",h),e.setAttribute("position",new Ci(r,3)),e.setAttribute("color",new Ci(i,3)),super(e,n),this.type="CameraHelper",this.camera=t,this.camera.updateProjectionMatrix&&this.camera.updateProjectionMatrix(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.pointMap=s,this.update()}update(){const t=this.geometry,e=this.pointMap;Yf.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse),Jf("c",e,t,Yf,0,0,-1),Jf("t",e,t,Yf,0,0,1),Jf("n1",e,t,Yf,-1,-1,-1),Jf("n2",e,t,Yf,1,-1,-1),Jf("n3",e,t,Yf,-1,1,-1),Jf("n4",e,t,Yf,1,1,-1),Jf("f1",e,t,Yf,-1,-1,1),Jf("f2",e,t,Yf,1,-1,1),Jf("f3",e,t,Yf,-1,1,1),Jf("f4",e,t,Yf,1,1,1),Jf("u1",e,t,Yf,.7,1.1,-1),Jf("u2",e,t,Yf,-.7,1.1,-1),Jf("u3",e,t,Yf,0,2,-1),Jf("cf1",e,t,Yf,-1,0,1),Jf("cf2",e,t,Yf,1,0,1),Jf("cf3",e,t,Yf,0,-1,1),Jf("cf4",e,t,Yf,0,1,1),Jf("cn1",e,t,Yf,-1,0,-1),Jf("cn2",e,t,Yf,1,0,-1),Jf("cn3",e,t,Yf,0,-1,-1),Jf("cn4",e,t,Yf,0,1,-1),t.getAttribute("position").needsUpdate=!0}}function Jf(t,e,n,r,i,s,o){Xf.set(i,s,o).unproject(r);const a=e[t];if(void 0!==a){const t=n.getAttribute("position");for(let e=0,n=a.length;e<n;e++)t.setXYZ(a[e],Xf.x,Xf.y,Xf.z)}}exports.CameraHelper=Zf;const Qf=new Qn;class Kf extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new Float32Array(24),i=new ki;i.setIndex(new bi(n,1)),i.setAttribute("position",new bi(r,3)),super(i,new ru({color:e,toneMapped:!1})),this.object=t,this.type="BoxHelper",this.matrixAutoUpdate=!1,this.update()}update(t){if(void 0!==t&&console.warn("THREE.BoxHelper: .update() has no longer arguments."),void 0!==this.object&&Qf.setFromObject(this.object),Qf.isEmpty())return;const e=Qf.min,n=Qf.max,r=this.geometry.attributes.position,i=r.array;i[0]=n.x,i[1]=n.y,i[2]=n.z,i[3]=e.x,i[4]=n.y,i[5]=n.z,i[6]=e.x,i[7]=e.y,i[8]=n.z,i[9]=n.x,i[10]=e.y,i[11]=n.z,i[12]=n.x,i[13]=n.y,i[14]=e.z,i[15]=e.x,i[16]=n.y,i[17]=e.z,i[18]=e.x,i[19]=e.y,i[20]=e.z,i[21]=n.x,i[22]=e.y,i[23]=e.z,r.needsUpdate=!0,this.geometry.computeBoundingSphere()}setFromObject(t){return this.object=t,this.update(),this}copy(t){return pu.prototype.copy.call(this,t),this.object=t.object,this}}exports.BoxHelper=Kf;class $f extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new ki;r.setIndex(new bi(n,1)),r.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,-1,-1,1,-1,-1,-1,-1,1,-1,-1],3)),super(r,new ru({color:e,toneMapped:!1})),this.box=t,this.type="Box3Helper",this.geometry.computeBoundingSphere()}updateMatrixWorld(t){const e=this.box;e.isEmpty()||(e.getCenter(this.position),e.getSize(this.scale),this.scale.multiplyScalar(.5),super.updateMatrixWorld(t))}}exports.Box3Helper=$f;class tg extends cu{constructor(t,e=1,n=16776960){const r=n,i=new ki;i.setAttribute("position",new Ci([1,-1,1,-1,1,1,-1,-1,1,1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,1,0,0,1,0,0,0],3)),i.computeBoundingSphere(),super(i,new ru({color:r,toneMapped:!1})),this.type="PlaneHelper",this.plane=t,this.size=e;const s=new ki;s.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,1,1,-1,-1,1,1,-1,1],3)),s.computeBoundingSphere(),this.add(new os(s,new vi({color:r,opacity:.2,transparent:!0,depthWrite:!1,toneMapped:!1})))}updateMatrixWorld(t){let e=-this.plane.constant;Math.abs(e)<1e-8&&(e=1e-8),this.scale.set(.5*this.size,.5*this.size,e),this.children[0].material.side=e<0?p:u,this.lookAt(this.plane.normal),super.updateMatrixWorld(t)}}exports.PlaneHelper=tg;const eg=new Yn;let ng,rg;class ig extends Xr{constructor(t=new Yn(0,0,1),e=new Yn(0,0,0),n=1,r=16776960,i=.2*n,s=.2*i){super(),this.type="ArrowHelper",void 0===ng&&((ng=new ki).setAttribute("position",new Ci([0,0,0,0,1,0],3)),(rg=new Eu(0,.5,1,5,1)).translate(0,-.5,0)),this.position.copy(e),this.line=new cu(ng,new ru({color:r,toneMapped:!1})),this.line.matrixAutoUpdate=!1,this.add(this.line),this.cone=new os(rg,new vi({color:r,toneMapped:!1})),this.cone.matrixAutoUpdate=!1,this.add(this.cone),this.setDirection(t),this.setLength(n,i,s)}setDirection(t){if(t.y>.99999)this.quaternion.set(0,0,0,1);else if(t.y<-.99999)this.quaternion.set(1,0,0,0);else{eg.set(t.z,0,-t.x).normalize();const e=Math.acos(t.y);this.quaternion.setFromAxisAngle(eg,e)}}setLength(t,e=.2*t,n=.2*e){this.line.scale.set(1,Math.max(1e-4,t-e),1),this.line.updateMatrix(),this.cone.scale.set(n,e,n),this.cone.position.y=t,this.cone.updateMatrix()}setColor(t){this.line.material.color.set(t),this.cone.material.color.set(t)}copy(t){return super.copy(t,!1),this.line.copy(t.line),this.cone.copy(t.cone),this}}exports.ArrowHelper=ig;class sg extends pu{constructor(t=1){const e=[0,0,0,t,0,0,0,0,0,0,t,0,0,0,0,0,0,t],n=new ki;n.setAttribute("position",new Ci(e,3)),n.setAttribute("color",new Ci([1,0,0,1,.6,0,0,1,0,.6,1,0,0,0,1,0,.6,1],3)),super(n,new ru({vertexColors:!0,toneMapped:!1})),this.type="AxesHelper"}}exports.AxesHelper=sg;const og=new Float32Array(1),ag=new Int32Array(og.buffer),lg={toHalfFloat:function(t){og[0]=t;const e=ag[0];let n=e>>16&32768,r=e>>12&2047;const i=e>>23&255;return i<103?n:i>142?(n|=31744,n|=(255==i?0:1)&&8388607&e):i<113?n|=((r|=2048)>>114-i)+(r>>113-i&1):(n|=i-112<<10|r>>1,n+=1&r)}};exports.DataUtils=lg;const cg=4,hg=8,ug=Math.pow(2,hg),pg=[.125,.215,.35,.446,.526,.582],dg=hg-cg+1+pg.length,mg=20,fg={[Xe]:0,[Ye]:1,[Je]:2,[Ke]:3,[$e]:4,[tn]:5,[Ze]:6},gg=new vi({side:p,depthWrite:!1,depthTest:!1}),xg=new os(new cs,gg),vg=new lm,{_lodPlanes:yg,_sizeLods:_g,_sigmas:bg}=Cg(),wg=new xi;let Mg=null;const Sg=(1+Math.sqrt(5))/2,Tg=1/Sg,Eg=[new Yn(1,1,1),new Yn(-1,1,1),new Yn(1,1,-1),new Yn(-1,1,-1),new Yn(0,Sg,Tg),new Yn(0,Sg,-Tg),new Yn(Tg,0,Sg),new Yn(-Tg,0,Sg),new Yn(Sg,Tg,0),new Yn(-Sg,Tg,0)];function Ag(t){const e=Math.max(t.r,t.g,t.b),n=Math.min(Math.max(Math.ceil(Math.log2(e)),-128),127);return t.multiplyScalar(Math.pow(2,-n)),(n+128)/255}class Lg{constructor(t){this._renderer=t,this._pingPongRenderTarget=null,this._blurMaterial=Ig(mg),this._equirectShader=null,this._cubemapShader=null,this._compileMaterial(this._blurMaterial)}fromScene(t,e=0,n=.1,r=100){Mg=this._renderer.getRenderTarget();const i=this._allocateTargets();return this._sceneToCubeUV(t,n,r,i),e>0&&this._blur(i,0,0,e),this._applyPMREM(i),this._cleanup(i),i}fromEquirectangular(t){return this._fromTexture(t)}fromCubemap(t){return this._fromTexture(t)}compileCubemapShader(){null===this._cubemapShader&&(this._cubemapShader=Ng(),this._compileMaterial(this._cubemapShader))}compileEquirectangularShader(){null===this._equirectShader&&(this._equirectShader=Bg(),this._compileMaterial(this._equirectShader))}dispose(){this._blurMaterial.dispose(),null!==this._cubemapShader&&this._cubemapShader.dispose(),null!==this._equirectShader&&this._equirectShader.dispose();for(let t=0;t<yg.length;t++)yg[t].dispose()}_cleanup(t){this._pingPongRenderTarget.dispose(),this._renderer.setRenderTarget(Mg),t.scissorTest=!1,Dg(t,0,0,t.width,t.height)}_fromTexture(t){Mg=this._renderer.getRenderTarget();const e=this._allocateTargets(t);return this._textureToCubeUV(t,e),this._applyPMREM(e),this._cleanup(e),e}_allocateTargets(t){const e={magFilter:ut,minFilter:ut,generateMipmaps:!1,type:bt,format:zt,encoding:Rg(t)?t.encoding:Je,depthBuffer:!1},n=Pg(e);return n.depthBuffer=!t,this._pingPongRenderTarget=Pg(e),n}_compileMaterial(t){const e=new os(yg[0],t);this._renderer.compile(e,vg)}_sceneToCubeUV(t,e,n,r){const i=new xs(90,1,e,n),s=[1,-1,1,1,1,1],o=[1,1,1,-1,-1,-1],a=this._renderer,l=a.autoClear,c=a.outputEncoding,h=a.toneMapping;a.getClearColor(wg),a.toneMapping=Z,a.outputEncoding=Xe,a.autoClear=!1;let u=!1;const p=t.background;if(p){if(p.isColor){gg.color.copy(p).convertSRGBToLinear(),t.background=null;const e=Ag(gg.color);gg.opacity=e,u=!0}}else{gg.color.copy(wg).convertSRGBToLinear();const t=Ag(gg.color);gg.opacity=t,u=!0}for(let d=0;d<6;d++){const e=d%3;0==e?(i.up.set(0,s[d],0),i.lookAt(o[d],0,0)):1==e?(i.up.set(0,0,s[d]),i.lookAt(0,o[d],0)):(i.up.set(0,s[d],0),i.lookAt(0,0,o[d])),Dg(r,e*ug,d>2?ug:0,ug,ug),a.setRenderTarget(r),u&&a.render(xg,i),a.render(t,i)}a.toneMapping=h,a.outputEncoding=c,a.autoClear=l}_textureToCubeUV(t,e){const n=this._renderer;t.isCubeTexture?null==this._cubemapShader&&(this._cubemapShader=Ng()):null==this._equirectShader&&(this._equirectShader=Bg());const r=t.isCubeTexture?this._cubemapShader:this._equirectShader,i=new os(yg[0],r),s=r.uniforms;s.envMap.value=t,t.isCubeTexture||s.texelSize.value.set(1/t.image.width,1/t.image.height),s.inputEncoding.value=fg[t.encoding],s.outputEncoding.value=fg[e.texture.encoding],Dg(e,0,0,3*ug,2*ug),n.setRenderTarget(e),n.render(i,vg)}_applyPMREM(t){const e=this._renderer,n=e.autoClear;e.autoClear=!1;for(let r=1;r<dg;r++){const e=Math.sqrt(bg[r]*bg[r]-bg[r-1]*bg[r-1]),n=Eg[(r-1)%Eg.length];this._blur(t,r-1,r,e,n)}e.autoClear=n}_blur(t,e,n,r,i){const s=this._pingPongRenderTarget;this._halfBlur(t,s,e,n,r,"latitudinal",i),this._halfBlur(s,t,n,n,r,"longitudinal",i)}_halfBlur(t,e,n,r,i,s,o){const a=this._renderer,l=this._blurMaterial;"latitudinal"!==s&&"longitudinal"!==s&&console.error("blur direction must be either latitudinal or longitudinal!");const c=new os(yg[r],l),h=l.uniforms,u=_g[n]-1,p=isFinite(i)?Math.PI/(2*u):2*Math.PI/(2*mg-1),d=i/p,m=isFinite(i)?1+Math.floor(3*d):mg;m>mg&&console.warn(`sigmaRadians, ${i}, is too large and will clip, as it requested ${m} samples when the maximum is set to ${mg}`);const f=[];let g=0;for(let v=0;v<mg;++v){const t=v/d,e=Math.exp(-t*t/2);f.push(e),0==v?g+=e:v<m&&(g+=2*e)}for(let v=0;v<f.length;v++)f[v]=f[v]/g;h.envMap.value=t.texture,h.samples.value=m,h.weights.value=f,h.latitudinal.value="latitudinal"===s,o&&(h.poleAxis.value=o),h.dTheta.value=p,h.mipInt.value=hg-n,h.inputEncoding.value=fg[t.texture.encoding],h.outputEncoding.value=fg[t.texture.encoding];const x=_g[r];Dg(e,3*Math.max(0,ug-2*x),(0===r?0:2*ug)+2*x*(r>hg-cg?r-hg+cg:0),3*x,2*x),a.setRenderTarget(e),a.render(c,vg)}}function Rg(t){return void 0!==t&&t.type===bt&&(t.encoding===Xe||t.encoding===Ye||t.encoding===Ze)}function Cg(){const t=[],e=[],n=[];let r=hg;for(let i=0;i<dg;i++){const s=Math.pow(2,r);e.push(s);let o=1/s;i>hg-cg?o=pg[i-hg+cg-1]:0==i&&(o=0),n.push(o);const a=1/(s-1),l=-a/2,c=1+a/2,h=[l,l,c,l,c,c,l,l,c,c,l,c],u=6,p=6,d=3,m=2,f=1,g=new Float32Array(d*p*u),x=new Float32Array(m*p*u),v=new Float32Array(f*p*u);for(let t=0;t<u;t++){const e=t%3*2/3-1,n=t>2?0:-1,r=[e,n,0,e+2/3,n,0,e+2/3,n+1,0,e,n,0,e+2/3,n+1,0,e,n+1,0];g.set(r,d*p*t),x.set(h,m*p*t);const i=[t,t,t,t,t,t];v.set(i,f*p*t)}const y=new ki;y.setAttribute("position",new bi(g,d)),y.setAttribute("uv",new bi(x,m)),y.setAttribute("faceIndex",new bi(v,f)),t.push(y),r>cg&&r--}return{_lodPlanes:t,_sizeLods:e,_sigmas:n}}function Pg(t){const e=new jn(3*ug,3*ug,t);return e.texture.mapping=ot,e.texture.name="PMREM.cubeUv",e.scissorTest=!0,e}function Dg(t,e,n,r,i){t.viewport.set(e,n,r,i),t.scissor.set(e,n,r,i)}function Ig(t){const e=new Float32Array(t),n=new Yn(0,1,0);return new Np({name:"SphericalGaussianBlur",defines:{n:t},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:e},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:n},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t${Og()}\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include <cube_uv_reflection_fragment>\n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Bg(){const t=new On(1,1);return new Np({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null},texelSize:{value:t},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform vec2 texelSize;\n\n\t\t\t${Og()}\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tvec2 f = fract( uv / texelSize - 0.5 );\n\t\t\t\tuv -= f * texelSize;\n\t\t\t\tvec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x += texelSize.x;\n\t\t\t\tvec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.y += texelSize.y;\n\t\t\t\tvec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x -= texelSize.x;\n\t\t\t\tvec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\n\t\t\t\tvec3 tm = mix( tl, tr, f.x );\n\t\t\t\tvec3 bm = mix( bl, br, f.x );\n\t\t\t\tgl_FragColor.rgb = mix( tm, bm, f.y );\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Ng(){return new Np({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\t${Og()}\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Fg(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute vec3 position;\n\t\tattribute vec2 uv;\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Og(){return"\n\n\t\tuniform int inputEncoding;\n\t\tuniform int outputEncoding;\n\n\t\t#include <encodings_pars_fragment>\n\n\t\tvec4 inputTexelToLinear( vec4 value ) {\n\n\t\t\tif ( inputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( inputEncoding == 1 ) {\n\n\t\t\t\treturn sRGBToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 2 ) {\n\n\t\t\t\treturn RGBEToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 3 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 7.0 );\n\n\t\t\t} else if ( inputEncoding == 4 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 16.0 );\n\n\t\t\t} else if ( inputEncoding == 5 ) {\n\n\t\t\t\treturn RGBDToLinear( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn GammaToLinear( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 linearToOutputTexel( vec4 value ) {\n\n\t\t\tif ( outputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( outputEncoding == 1 ) {\n\n\t\t\t\treturn LinearTosRGB( value );\n\n\t\t\t} else if ( outputEncoding == 2 ) {\n\n\t\t\t\treturn LinearToRGBE( value );\n\n\t\t\t} else if ( outputEncoding == 3 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 7.0 );\n\n\t\t\t} else if ( outputEncoding == 4 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 16.0 );\n\n\t\t\t} else if ( outputEncoding == 5 ) {\n\n\t\t\t\treturn LinearToRGBD( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn LinearToGamma( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 envMapTexelToLinear( vec4 color ) {\n\n\t\t\treturn inputTexelToLinear( color );\n\n\t\t}\n\t"}exports.PMREMGenerator=Lg;const zg=0;exports.LineStrip=0;const Gg=1;exports.LinePieces=1;const Hg=0;exports.NoColors=0;const Ug=1;exports.FaceColors=1;const kg=2;function Vg(t){return console.warn("THREE.MeshFaceMaterial has been removed. Use an Array instead."),t}function Wg(t=[]){return console.warn("THREE.MultiMaterial has been removed. Use an Array instead."),t.isMultiMaterial=!0,t.materials=t,t.clone=function(){return t.slice()},t}function jg(t,e){return console.warn("THREE.PointCloud has been renamed to THREE.Points."),new yu(t,e)}function qg(t){return console.warn("THREE.Particle has been renamed to THREE.Sprite."),new Oh(t)}function Xg(t,e){return console.warn("THREE.ParticleSystem has been renamed to THREE.Points."),new yu(t,e)}function Yg(t){return console.warn("THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Zg(t){return console.warn("THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Jg(t){return console.warn("THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Qg(t,e,n){return console.warn("THREE.Vertex has been removed. Use THREE.Vector3 instead."),new Yn(t,e,n)}function Kg(t,e){return console.warn("THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead."),new bi(t,e).setUsage(Mn)}function $g(t,e){return console.warn("THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead."),new wi(t,e)}function tx(t,e){return console.warn("THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead."),new Mi(t,e)}function ex(t,e){return console.warn("THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead."),new Si(t,e)}function nx(t,e){return console.warn("THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead."),new Ti(t,e)}function rx(t,e){return console.warn("THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead."),new Ei(t,e)}function ix(t,e){return console.warn("THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead."),new Ai(t,e)}function sx(t,e){return console.warn("THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead."),new Li(t,e)}function ox(t,e){return console.warn("THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead."),new Ci(t,e)}function ax(t,e){return console.warn("THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead."),new Pi(t,e)}function lx(t){return console.warn("THREE.AxisHelper has been renamed to THREE.AxesHelper."),new sg(t)}function cx(t,e){return console.warn("THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead."),new Kf(t,e)}function hx(t,e){return console.warn("THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead."),new pu(new Bu(t.geometry),new ru({color:void 0!==e?e:16777215}))}function ux(t,e){return console.warn("THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead."),new pu(new Dp(t.geometry),new ru({color:void 0!==e?e:16777215}))}function px(t){return console.warn("THREE.XHRLoader has been renamed to THREE.FileLoader."),new pd(t)}function dx(t){return console.warn("THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader."),new xd(t)}function mx(t,e,n){return console.warn("THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options )."),new ws(t,n)}function fx(){console.error("THREE.CanvasRenderer has been removed")}function gx(){console.error("THREE.JSONLoader has been removed.")}exports.VertexColors=2,yd.create=function(t,e){return console.log("THREE.Curve.create() has been deprecated"),t.prototype=Object.create(yd.prototype),t.prototype.constructor=t,t.prototype.getPoint=e,t},Xd.prototype.fromPoints=function(t){return console.warn("THREE.Path: .fromPoints() has been renamed to .setFromPoints()."),this.setFromPoints(t)},Uf.prototype.setColors=function(){console.error("THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.")},Bf.prototype.update=function(){console.error("THREE.SkeletonHelper: update() no longer needs to be called.")},hd.prototype.extractUrlBase=function(t){return console.warn("THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead."),gm.extractUrlBase(t)},hd.Handlers={add:function(){console.error("THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.")},get:function(){console.error("THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.")}},Sf.prototype.center=function(t){return console.warn("THREE.Box2: .center() has been renamed to .getCenter()."),this.getCenter(t)},Sf.prototype.empty=function(){return console.warn("THREE.Box2: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Sf.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Sf.prototype.size=function(t){return console.warn("THREE.Box2: .size() has been renamed to .getSize()."),this.getSize(t)},Qn.prototype.center=function(t){return console.warn("THREE.Box3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Qn.prototype.empty=function(){return console.warn("THREE.Box3: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Qn.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Qn.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},Qn.prototype.size=function(t){return console.warn("THREE.Box3: .size() has been renamed to .getSize()."),this.getSize(t)},dr.prototype.empty=function(){return console.warn("THREE.Sphere: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Es.prototype.setFromMatrix=function(t){return console.warn("THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix()."),this.setFromProjectionMatrix(t)},Af.prototype.center=function(t){return console.warn("THREE.Line3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Fn.random16=function(){return console.warn("THREE.Math: .random16() has been deprecated. Use Math.random() instead."),Math.random()},Fn.nearestPowerOfTwo=function(t){return console.warn("THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo()."),Fn.floorPowerOfTwo(t)},Fn.nextPowerOfTwo=function(t){return console.warn("THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo()."),Fn.ceilPowerOfTwo(t)},zn.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},zn.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix3: .multiplyVector3Array() has been removed.")},zn.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.applyToVector3Array=function(){console.error("THREE.Matrix3: .applyToVector3Array() has been removed.")},zn.prototype.getInverse=function(t){return console.warn("THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},wr.prototype.extractPosition=function(t){return console.warn("THREE.Matrix4: .extractPosition() has been renamed to .copyPosition()."),this.copyPosition(t)},wr.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},wr.prototype.getPosition=function(){return console.warn("THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead."),(new Yn).setFromMatrixColumn(this,3)},wr.prototype.setRotationFromQuaternion=function(t){return console.warn("THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion()."),this.makeRotationFromQuaternion(t)},wr.prototype.multiplyToArray=function(){console.warn("THREE.Matrix4: .multiplyToArray() has been removed.")},wr.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector4=function(t){return console.warn("THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix4: .multiplyVector3Array() has been removed.")},wr.prototype.rotateAxis=function(t){console.warn("THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead."),t.transformDirection(this)},wr.prototype.crossVector=function(t){return console.warn("THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.translate=function(){console.error("THREE.Matrix4: .translate() has been removed.")},wr.prototype.rotateX=function(){console.error("THREE.Matrix4: .rotateX() has been removed.")},wr.prototype.rotateY=function(){console.error("THREE.Matrix4: .rotateY() has been removed.")},wr.prototype.rotateZ=function(){console.error("THREE.Matrix4: .rotateZ() has been removed.")},wr.prototype.rotateByAxis=function(){console.error("THREE.Matrix4: .rotateByAxis() has been removed.")},wr.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.applyToVector3Array=function(){console.error("THREE.Matrix4: .applyToVector3Array() has been removed.")},wr.prototype.makeFrustum=function(t,e,n,r,i,s){return console.warn("THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead."),this.makePerspective(t,e,r,n,i,s)},wr.prototype.getInverse=function(t){return console.warn("THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},Qr.prototype.isIntersectionLine=function(t){return console.warn("THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine()."),this.intersectsLine(t)},Xn.prototype.multiplyVector3=function(t){return console.warn("THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead."),t.applyQuaternion(this)},Xn.prototype.inverse=function(){return console.warn("THREE.Quaternion: .inverse() has been renamed to invert()."),this.invert()},br.prototype.isIntersectionBox=function(t){return console.warn("THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},br.prototype.isIntersectionPlane=function(t){return console.warn("THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane()."),this.intersectsPlane(t)},br.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},li.prototype.area=function(){return console.warn("THREE.Triangle: .area() has been renamed to .getArea()."),this.getArea()},li.prototype.barycoordFromPoint=function(t,e){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),this.getBarycoord(t,e)},li.prototype.midpoint=function(t){return console.warn("THREE.Triangle: .midpoint() has been renamed to .getMidpoint()."),this.getMidpoint(t)},li.prototypenormal=function(t){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),this.getNormal(t)},li.prototype.plane=function(t){return console.warn("THREE.Triangle: .plane() has been renamed to .getPlane()."),this.getPlane(t)},li.barycoordFromPoint=function(t,e,n,r,i){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),li.getBarycoord(t,e,n,r,i)},li.normal=function(t,e,n,r){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),li.getNormal(t,e,n,r)},Yd.prototype.extractAllPoints=function(t){return console.warn("THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead."),this.extractPoints(t)},Yd.prototype.extrude=function(t){return console.warn("THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead."),new gp(this,t)},Yd.prototype.makeGeometry=function(t){return console.warn("THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead."),new Sp(this,t)},On.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},On.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},On.prototype.lengthManhattan=function(){return console.warn("THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Yn.prototype.setEulerFromRotationMatrix=function(){console.error("THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.")},Yn.prototype.setEulerFromQuaternion=function(){console.error("THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.")},Yn.prototype.getPositionFromMatrix=function(t){return console.warn("THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition()."),this.setFromMatrixPosition(t)},Yn.prototype.getScaleFromMatrix=function(t){return console.warn("THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale()."),this.setFromMatrixScale(t)},Yn.prototype.getColumnFromMatrix=function(t,e){return console.warn("THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn()."),this.setFromMatrixColumn(e,t)},Yn.prototype.applyProjection=function(t){return console.warn("THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead."),this.applyMatrix4(t)},Yn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Yn.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},Yn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Wn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Wn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Xr.prototype.getChildByName=function(t){return console.warn("THREE.Object3D: .getChildByName() has been renamed to .getObjectByName()."),this.getObjectByName(t)},Xr.prototype.renderDepth=function(){console.warn("THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.")},Xr.prototype.translate=function(t,e){return console.warn("THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead."),this.translateOnAxis(e,t)},Xr.prototype.getWorldRotation=function(){console.error("THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.")},Xr.prototype.applyMatrix=function(t){return console.warn("THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(Xr.prototype,{eulerOrder:{get:function(){return console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order},set:function(t){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order=t}},useQuaternion:{get:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")},set:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")}}}),os.prototype.setDrawMode=function(){console.error("THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")},Object.defineProperties(os.prototype,{drawMode:{get:function(){return console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode."),0},set:function(){console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")}}}),Object.defineProperties(Uh.prototype,{objects:{get:function(){return console.warn("THREE.LOD: .objects has been renamed to .levels."),this.levels}}}),Object.defineProperty(Qh.prototype,"useVertexTexture",{get:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")},set:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")}}),Xh.prototype.initBones=function(){console.error("THREE.SkinnedMesh: initBones() has been removed.")},Object.defineProperty(yd.prototype,"__arcLengthDivisions",{get:function(){return console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions},set:function(t){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions=t}}),xs.prototype.setLens=function(t,e){console.warn("THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup."),void 0!==e&&(this.filmGauge=e),this.setFocalLength(t)},Object.defineProperties(Zd.prototype,{onlyShadow:{set:function(){console.warn("THREE.Light: .onlyShadow has been removed.")}},shadowCameraFov:{set:function(t){console.warn("THREE.Light: .shadowCameraFov is now .shadow.camera.fov."),this.shadow.camera.fov=t}},shadowCameraLeft:{set:function(t){console.warn("THREE.Light: .shadowCameraLeft is now .shadow.camera.left."),this.shadow.camera.left=t}},shadowCameraRight:{set:function(t){console.warn("THREE.Light: .shadowCameraRight is now .shadow.camera.right."),this.shadow.camera.right=t}},shadowCameraTop:{set:function(t){console.warn("THREE.Light: .shadowCameraTop is now .shadow.camera.top."),this.shadow.camera.top=t}},shadowCameraBottom:{set:function(t){console.warn("THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom."),this.shadow.camera.bottom=t}},shadowCameraNear:{set:function(t){console.warn("THREE.Light: .shadowCameraNear is now .shadow.camera.near."),this.shadow.camera.near=t}},shadowCameraFar:{set:function(t){console.warn("THREE.Light: .shadowCameraFar is now .shadow.camera.far."),this.shadow.camera.far=t}},shadowCameraVisible:{set:function(){console.warn("THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.")}},shadowBias:{set:function(t){console.warn("THREE.Light: .shadowBias is now .shadow.bias."),this.shadow.bias=t}},shadowDarkness:{set:function(){console.warn("THREE.Light: .shadowDarkness has been removed.")}},shadowMapWidth:{set:function(t){console.warn("THREE.Light: .shadowMapWidth is now .shadow.mapSize.width."),this.shadow.mapSize.width=t}},shadowMapHeight:{set:function(t){console.warn("THREE.Light: .shadowMapHeight is now .shadow.mapSize.height."),this.shadow.mapSize.height=t}}}),Object.defineProperties(bi.prototype,{length:{get:function(){return console.warn("THREE.BufferAttribute: .length has been deprecated. Use .count instead."),this.array.length}},dynamic:{get:function(){return console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.usage===Mn},set:function(){console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.setUsage(Mn)}}}),bi.prototype.setDynamic=function(t){return console.warn("THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},bi.prototype.copyIndicesArray=function(){console.error("THREE.BufferAttribute: .copyIndicesArray() has been removed.")},bi.prototype.setArray=function(){console.error("THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},ki.prototype.addIndex=function(t){console.warn("THREE.BufferGeometry: .addIndex() has been renamed to .setIndex()."),this.setIndex(t)},ki.prototype.addAttribute=function(t,e){return console.warn("THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute()."),e&&e.isBufferAttribute||e&&e.isInterleavedBufferAttribute?"index"===t?(console.warn("THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute."),this.setIndex(e),this):this.setAttribute(t,e):(console.warn("THREE.BufferGeometry: .addAttribute() now expects ( name, attribute )."),this.setAttribute(t,new bi(arguments[1],arguments[2])))},ki.prototype.addDrawCall=function(t,e,n){void 0!==n&&console.warn("THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset."),console.warn("THREE.BufferGeometry: .addDrawCall() is now .addGroup()."),this.addGroup(t,e)},ki.prototype.clearDrawCalls=function(){console.warn("THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups()."),this.clearGroups()},ki.prototype.computeOffsets=function(){console.warn("THREE.BufferGeometry: .computeOffsets() has been removed.")},ki.prototype.removeAttribute=function(t){return console.warn("THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute()."),this.deleteAttribute(t)},ki.prototype.applyMatrix=function(t){return console.warn("THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(ki.prototype,{drawcalls:{get:function(){return console.error("THREE.BufferGeometry: .drawcalls has been renamed to .groups."),this.groups}},offsets:{get:function(){return console.warn("THREE.BufferGeometry: .offsets has been renamed to .groups."),this.groups}}}),Object.defineProperties(xm.prototype,{maxInstancedCount:{get:function(){return console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount},set:function(t){console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount=t}}}),Object.defineProperties(vf.prototype,{linePrecision:{get:function(){return console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold},set:function(t){console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold=t}}}),Object.defineProperties(_h.prototype,{dynamic:{get:function(){return console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.usage===Mn},set:function(t){console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.setUsage(t)}}}),_h.prototype.setDynamic=function(t){return console.warn("THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},_h.prototype.setArray=function(){console.error("THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},gp.prototype.getArrays=function(){console.error("THREE.ExtrudeGeometry: .getArrays() has been removed.")},gp.prototype.addShapeList=function(){console.error("THREE.ExtrudeGeometry: .addShapeList() has been removed.")},gp.prototype.addShape=function(){console.error("THREE.ExtrudeGeometry: .addShape() has been removed.")},yh.prototype.dispose=function(){console.error("THREE.Scene: .dispose() has been removed.")},Object.defineProperties(ff.prototype,{dynamic:{set:function(){console.warn("THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.")}},onUpdate:{value:function(){return console.warn("THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead."),this}}}),Object.defineProperties(hi.prototype,{wrapAround:{get:function(){console.warn("THREE.Material: .wrapAround has been removed.")},set:function(){console.warn("THREE.Material: .wrapAround has been removed.")}},overdraw:{get:function(){console.warn("THREE.Material: .overdraw has been removed.")},set:function(){console.warn("THREE.Material: .overdraw has been removed.")}},wrapRGB:{get:function(){return console.warn("THREE.Material: .wrapRGB has been removed."),new xi}},shading:{get:function(){console.error("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")},set:function(t){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===t}},stencilMask:{get:function(){return console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask},set:function(t){console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask=t}}}),Object.defineProperties(zp.prototype,{metal:{get:function(){return console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead."),!1},set:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead")}}}),Object.defineProperties(Op.prototype,{transparency:{get:function(){return console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission},set:function(t){console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission=t}}}),Object.defineProperties(fs.prototype,{derivatives:{get:function(){return console.warn("THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives},set:function(t){console.warn("THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives=t}}}),fh.prototype.clearTarget=function(t,e,n,r){console.warn("THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead."),this.setRenderTarget(t),this.clear(e,n,r)},fh.prototype.animate=function(t){console.warn("THREE.WebGLRenderer: .animate() is now .setAnimationLoop()."),this.setAnimationLoop(t)},fh.prototype.getCurrentRenderTarget=function(){return console.warn("THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget()."),this.getRenderTarget()},fh.prototype.getMaxAnisotropy=function(){return console.warn("THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy()."),this.capabilities.getMaxAnisotropy()},fh.prototype.getPrecision=function(){return console.warn("THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision."),this.capabilities.precision},fh.prototype.resetGLState=function(){return console.warn("THREE.WebGLRenderer: .resetGLState() is now .state.reset()."),this.state.reset()},fh.prototype.supportsFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' )."),this.extensions.get("OES_texture_float")},fh.prototype.supportsHalfFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' )."),this.extensions.get("OES_texture_half_float")},fh.prototype.supportsStandardDerivatives=function(){return console.warn("THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' )."),this.extensions.get("OES_standard_derivatives")},fh.prototype.supportsCompressedTextureS3TC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' )."),this.extensions.get("WEBGL_compressed_texture_s3tc")},fh.prototype.supportsCompressedTexturePVRTC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' )."),this.extensions.get("WEBGL_compressed_texture_pvrtc")},fh.prototype.supportsBlendMinMax=function(){return console.warn("THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' )."),this.extensions.get("EXT_blend_minmax")},fh.prototype.supportsVertexTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures."),this.capabilities.vertexTextures},fh.prototype.supportsInstancedArrays=function(){return console.warn("THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' )."),this.extensions.get("ANGLE_instanced_arrays")},fh.prototype.enableScissorTest=function(t){console.warn("THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest()."),this.setScissorTest(t)},fh.prototype.initMaterial=function(){console.warn("THREE.WebGLRenderer: .initMaterial() has been removed.")},fh.prototype.addPrePlugin=function(){console.warn("THREE.WebGLRenderer: .addPrePlugin() has been removed.")},fh.prototype.addPostPlugin=function(){console.warn("THREE.WebGLRenderer: .addPostPlugin() has been removed.")},fh.prototype.updateShadowMap=function(){console.warn("THREE.WebGLRenderer: .updateShadowMap() has been removed.")},fh.prototype.setFaceCulling=function(){console.warn("THREE.WebGLRenderer: .setFaceCulling() has been removed.")},fh.prototype.allocTextureUnit=function(){console.warn("THREE.WebGLRenderer: .allocTextureUnit() has been removed.")},fh.prototype.setTexture=function(){console.warn("THREE.WebGLRenderer: .setTexture() has been removed.")},fh.prototype.setTexture2D=function(){console.warn("THREE.WebGLRenderer: .setTexture2D() has been removed.")},fh.prototype.setTextureCube=function(){console.warn("THREE.WebGLRenderer: .setTextureCube() has been removed.")},fh.prototype.getActiveMipMapLevel=function(){return console.warn("THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel()."),this.getActiveMipmapLevel()},Object.defineProperties(fh.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled."),this.shadowMap.enabled=t}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type."),this.shadowMap.type=t}},shadowMapCullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")}},context:{get:function(){return console.warn("THREE.WebGLRenderer: .context has been removed. Use .getContext() instead."),this.getContext()}},vr:{get:function(){return console.warn("THREE.WebGLRenderer: .vr has been renamed to .xr"),this.xr}},gammaInput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead."),!1},set:function(){console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.")}},gammaOutput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),!1},set:function(t){console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),this.outputEncoding=!0===t?Ye:Xe}},toneMappingWhitePoint:{get:function(){return console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed."),1},set:function(){console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.")}}}),Object.defineProperties(sh.prototype,{cullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")}},renderReverseSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")}},renderSingleSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")}}}),Object.defineProperties(jn.prototype,{wrapS:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS=t}},wrapT:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT=t}},magFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter=t}},minFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter=t}},anisotropy:{get:function(){return console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy},set:function(t){console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy=t}},offset:{get:function(){return console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset},set:function(t){console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset=t}},repeat:{get:function(){return console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat},set:function(t){console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat=t}},format:{get:function(){return console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format},set:function(t){console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format=t}},type:{get:function(){return console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type},set:function(t){console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type=t}},generateMipmaps:{get:function(){return console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps},set:function(t){console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps=t}}}),Object.defineProperties(jm.prototype,{load:{value:function(t){console.warn("THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.");const e=this;return(new Dm).load(t,function(t){e.setBuffer(t)}),this}},startTime:{set:function(){console.warn("THREE.Audio: .startTime is now .play( delay ).")}}}),Qm.prototype.getData=function(){return console.warn("THREE.AudioAnalyser: .getData() is now .getFrequencyData()."),this.getFrequencyData()},_s.prototype.updateCubeMap=function(t,e){return console.warn("THREE.CubeCamera: .updateCubeMap() is now .update()."),this.update(t,e)},_s.prototype.clear=function(t,e,n,r){return console.warn("THREE.CubeCamera: .clear() is now .renderTarget.clear()."),this.renderTarget.clear(t,e,n,r)},Hn.crossOrigin=void 0,Hn.loadTexture=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.");const i=new vd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadTextureCube=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.");const i=new gd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadCompressedTexture=function(){console.error("THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.")},Hn.loadCompressedTextureCube=function(){console.error("THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.")};const xx={createMultiMaterialObject:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},detach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},attach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")}};function vx(){console.error("THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js")}exports.SceneUtils=xx,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("register",{detail:{revision:"126"}})),"undefined"!=typeof window&&(window.__THREE__?console.warn("WARNING: Multiple instances of Three.js being imported."):window.__THREE__="126");
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@@ -539,15 +539,15 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -559,15 +559,18 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. 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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
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\ No newline at end of file
diff --git a/example/bundle/collectTriangles.html b/example/bundle/collectTriangles.html
index fad8efae5..3d754f1b8 100644
--- a/example/bundle/collectTriangles.html
+++ b/example/bundle/collectTriangles.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="collectTriangles.9c45819a.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Collect Triangles</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="collectTriangles.9c45819a.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/distancecast.4107d8f2.js b/example/bundle/distancecast.4107d8f2.js
index 50e7d3186..1e6a096af 100644
--- a/example/bundle/distancecast.4107d8f2.js
+++ b/example/bundle/distancecast.4107d8f2.js
@@ -2,7 +2,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 
 var e=module.exports="undefined"!=typeof window&&window.Math==Math?window:"undefined"!=typeof self&&self.Math==Math?self:Function("return this")();"number"==typeof __g&&(__g=e);
 },{}],"ss9A":[function(require,module,exports) {
-var e=module.exports={version:"2.6.11"};"number"==typeof __e&&(__e=e);
+var e=module.exports={version:"2.6.12"};"number"==typeof __e&&(__e=e);
 },{}],"M7z6":[function(require,module,exports) {
 module.exports=function(o){return"object"==typeof o?null!==o:"function"==typeof o};
 },{}],"eT53":[function(require,module,exports) {
@@ -31,7 +31,7 @@ var o=0,t=Math.random();module.exports=function(n){return"Symbol(".concat(void 0
 module.exports=!1;
 },{}],"zGcK":[function(require,module,exports) {
 
-var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2019 Denis Pushkarev (zloirock.ru)"});
+var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2020 Denis Pushkarev (zloirock.ru)"});
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 module.exports=require("./_shared")("native-function-to-string",Function.toString);
 },{"./_shared":"zGcK"}],"PHot":[function(require,module,exports) {
@@ -78,7 +78,11 @@ var r=require("./_is-object"),e=require("./_is-array"),o=require("./_wks")("spec
 var r=require("./_array-species-constructor");module.exports=function(e,n){return new(r(e))(n)};
 },{"./_array-species-constructor":"NNbH"}],"AuPh":[function(require,module,exports) {
 var e=require("./_ctx"),r=require("./_iobject"),t=require("./_to-object"),i=require("./_to-length"),u=require("./_array-species-create");module.exports=function(n,c){var s=1==n,a=2==n,o=3==n,f=4==n,l=6==n,q=5==n||l,_=c||u;return function(u,c,h){for(var v,p,b=t(u),d=r(b),g=e(c,h,3),j=i(d.length),x=0,m=s?_(u,j):a?_(u,0):void 0;j>x;x++)if((q||x in d)&&(p=g(v=d[x],x,b),n))if(s)m[x]=p;else if(p)switch(n){case 3:return!0;case 5:return v;case 6:return x;case 2:m.push(v)}else if(f)return!1;return l?-1:o||f?f:m}};
-},{"./_ctx":"E3Kh","./_iobject":"nGau","./_to-object":"rfVX","./_to-length":"dJBs","./_array-species-create":"igas"}],"Qppk":[function(require,module,exports) {
+},{"./_ctx":"E3Kh","./_iobject":"nGau","./_to-object":"rfVX","./_to-length":"dJBs","./_array-species-create":"igas"}],"Hh2M":[function(require,module,exports) {
+"use strict";var l=require("./_fails");module.exports=function(n,u){return!!n&&l(function(){u?n.call(null,function(){},1):n.call(null)})};
+},{"./_fails":"BXiR"}],"GyG6":[function(require,module,exports) {
+"use strict";var r=require("./_export"),e=require("./_array-methods")(2);r(r.P+r.F*!require("./_strict-method")([].filter,!0),"Array",{filter:function(r){return e(this,r,arguments[1])}});
+},{"./_export":"izCb","./_array-methods":"AuPh","./_strict-method":"Hh2M"}],"Qppk":[function(require,module,exports) {
 "use strict";var r=require("./_export"),e=require("./_array-methods")(5),i="find",n=!0;i in[]&&Array(1)[i](function(){n=!1}),r(r.P+r.F*n,"Array",{find:function(r){return e(this,r,arguments.length>1?arguments[1]:void 0)}}),require("./_add-to-unscopables")(i);
 },{"./_export":"izCb","./_array-methods":"AuPh","./_add-to-unscopables":"Z7eD"}],"sVmK":[function(require,module,exports) {
 "use strict";var r=require("./_export"),e=require("./_array-methods")(6),n="findIndex",i=!0;n in[]&&Array(1)[n](function(){i=!1}),r(r.P+r.F*i,"Array",{findIndex:function(r){return e(this,r,arguments.length>1?arguments[1]:void 0)}}),require("./_add-to-unscopables")(n);
@@ -134,20 +138,20 @@ var t=require("./_has"),e=require("./_to-object"),o=require("./_shared-key")("IE
 "use strict";var e=require("./_library"),r=require("./_export"),t=require("./_redefine"),i=require("./_hide"),n=require("./_iterators"),u=require("./_iter-create"),o=require("./_set-to-string-tag"),s=require("./_object-gpo"),a=require("./_wks")("iterator"),c=!([].keys&&"next"in[].keys()),f="@@iterator",l="keys",q="values",y=function(){return this};module.exports=function(_,p,h,k,v,w,d){u(h,p,k);var x,b,g,j=function(e){if(!c&&e in I)return I[e];switch(e){case l:case q:return function(){return new h(this,e)}}return function(){return new h(this,e)}},m=p+" Iterator",A=v==q,F=!1,I=_.prototype,O=I[a]||I[f]||v&&I[v],P=O||j(v),z=v?A?j("entries"):P:void 0,B="Array"==p&&I.entries||O;if(B&&(g=s(B.call(new _)))!==Object.prototype&&g.next&&(o(g,m,!0),e||"function"==typeof g[a]||i(g,a,y)),A&&O&&O.name!==q&&(F=!0,P=function(){return O.call(this)}),e&&!d||!c&&!F&&I[a]||i(I,a,P),n[p]=P,n[m]=y,v)if(x={values:A?P:j(q),keys:w?P:j(l),entries:z},d)for(b in x)b in I||t(I,b,x[b]);else r(r.P+r.F*(c||F),p,x);return x};
 },{"./_library":"H21C","./_export":"izCb","./_redefine":"PHot","./_hide":"NXbe","./_iterators":"JO4d","./_iter-create":"ebgP","./_set-to-string-tag":"rq3q","./_object-gpo":"q6yw","./_wks":"AIP1"}],"wVEN":[function(require,module,exports) {
 "use strict";var e=require("./_add-to-unscopables"),r=require("./_iter-step"),t=require("./_iterators"),i=require("./_to-iobject");module.exports=require("./_iter-define")(Array,"Array",function(e,r){this._t=i(e),this._i=0,this._k=r},function(){var e=this._t,t=this._k,i=this._i++;return!e||i>=e.length?(this._t=void 0,r(1)):r(0,"keys"==t?i:"values"==t?e[i]:[i,e[i]])},"values"),t.Arguments=t.Array,e("keys"),e("values"),e("entries");
-},{"./_add-to-unscopables":"Z7eD","./_iter-step":"x8b3","./_iterators":"JO4d","./_to-iobject":"g6sb","./_iter-define":"mH0U"}],"RB6b":[function(require,module,exports) {
+},{"./_add-to-unscopables":"Z7eD","./_iter-step":"x8b3","./_iterators":"JO4d","./_to-iobject":"g6sb","./_iter-define":"mH0U"}],"RBsu":[function(require,module,exports) {
+"use strict";var r=require("./_export"),e=require("./_array-methods")(1);r(r.P+r.F*!require("./_strict-method")([].map,!0),"Array",{map:function(r){return e(this,r,arguments[1])}});
+},{"./_export":"izCb","./_array-methods":"AuPh","./_strict-method":"Hh2M"}],"RB6b":[function(require,module,exports) {
 "use strict";var r=require("./_export"),e=require("./_create-property");r(r.S+r.F*require("./_fails")(function(){function r(){}return!(Array.of.call(r)instanceof r)}),"Array",{of:function(){for(var r=0,t=arguments.length,n=new("function"==typeof this?this:Array)(t);t>r;)e(n,r,arguments[r++]);return n.length=t,n}});
-},{"./_export":"izCb","./_create-property":"JCwR","./_fails":"BXiR"}],"Hh2M":[function(require,module,exports) {
-"use strict";var l=require("./_fails");module.exports=function(n,u){return!!n&&l(function(){u?n.call(null,function(){},1):n.call(null)})};
-},{"./_fails":"BXiR"}],"nrVf":[function(require,module,exports) {
+},{"./_export":"izCb","./_create-property":"JCwR","./_fails":"BXiR"}],"btFn":[function(require,module,exports) {
+"use strict";var r=require("./_export"),e=require("./_html"),i=require("./_cof"),t=require("./_to-absolute-index"),u=require("./_to-length"),a=[].slice;r(r.P+r.F*require("./_fails")(function(){e&&a.call(e)}),"Array",{slice:function(r,e){var l=u(this.length),n=i(this);if(e=void 0===e?l:e,"Array"==n)return a.call(this,r,e);for(var s=t(r,l),c=t(e,l),h=u(c-s),o=new Array(h),f=0;f<h;f++)o[f]="String"==n?this.charAt(s+f):this[s+f];return o}});
+},{"./_export":"izCb","./_html":"xjB1","./_cof":"Z5df","./_to-absolute-index":"vfEH","./_to-length":"dJBs","./_fails":"BXiR"}],"nrVf":[function(require,module,exports) {
 "use strict";var r=require("./_export"),t=require("./_a-function"),i=require("./_to-object"),e=require("./_fails"),o=[].sort,u=[1,2,3];r(r.P+r.F*(e(function(){u.sort(void 0)})||!e(function(){u.sort(null)})||!require("./_strict-method")(o)),"Array",{sort:function(r){return void 0===r?o.call(i(this)):o.call(i(this),t(r))}});
 },{"./_export":"izCb","./_a-function":"kYjc","./_to-object":"rfVX","./_fails":"BXiR","./_strict-method":"Hh2M"}],"h4dH":[function(require,module,exports) {
 
 "use strict";var e=require("./_global"),r=require("./_object-dp"),i=require("./_descriptors"),t=require("./_wks")("species");module.exports=function(u){var s=e[u];i&&s&&!s[t]&&r.f(s,t,{configurable:!0,get:function(){return this}})};
 },{"./_global":"qf4T","./_object-dp":"nw8e","./_descriptors":"P9Ib","./_wks":"AIP1"}],"smn3":[function(require,module,exports) {
 require("./_set-species")("Array");
-},{"./_set-species":"h4dH"}],"Gj6n":[function(require,module,exports) {
-"use strict";var t=require("./_export"),e=require("./_to-object"),r=require("./_to-primitive");t(t.P+t.F*require("./_fails")(function(){return null!==new Date(NaN).toJSON()||1!==Date.prototype.toJSON.call({toISOString:function(){return 1}})}),"Date",{toJSON:function(t){var i=e(this),n=r(i);return"number"!=typeof n||isFinite(n)?i.toISOString():null}});
-},{"./_export":"izCb","./_to-object":"rfVX","./_to-primitive":"y37I","./_fails":"BXiR"}],"pVj9":[function(require,module,exports) {
+},{"./_set-species":"h4dH"}],"pVj9":[function(require,module,exports) {
 "use strict";var r=require("./_an-object"),e=require("./_to-primitive"),t="number";module.exports=function(i){if("string"!==i&&i!==t&&"default"!==i)throw TypeError("Incorrect hint");return e(r(this),i!=t)};
 },{"./_an-object":"eT53","./_to-primitive":"y37I"}],"jQnQ":[function(require,module,exports) {
 var e=require("./_wks")("toPrimitive"),i=Date.prototype;e in i||require("./_hide")(i,e,require("./_date-to-primitive"));
@@ -309,9 +313,7 @@ var e=require("./_is-object");require("./_object-sap")("isExtensible",function(r
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be(e){0!==e.length&&U.call(window,function(){be(e)}),i.each(e,function(e){e.updateDisplay()})}oe.toggleHide=function(){te=!te,i.each(ne,function(e){e.domElement.style.display=te?"none":""})},oe.CLASS_AUTO_PLACE="a",oe.CLASS_AUTO_PLACE_CONTAINER="ac",oe.CLASS_MAIN="main",oe.CLASS_CONTROLLER_ROW="cr",oe.CLASS_TOO_TALL="taller-than-window",oe.CLASS_CLOSED="closed",oe.CLASS_CLOSE_BUTTON="close-button",oe.CLASS_CLOSE_TOP="close-top",oe.CLASS_CLOSE_BOTTOM="close-bottom",oe.CLASS_DRAG="drag",oe.DEFAULT_WIDTH=245,oe.TEXT_CLOSED="Close Controls",oe.TEXT_OPEN="Open Controls",oe._keydownHandler=function(e){"text"===document.activeElement.type||e.which!==J&&e.keyCode!==J||oe.toggleHide()},A.bind(window,"keydown",oe._keydownHandler,!1),i.extend(oe.prototype,{add:function(e,t){return de(this,e,t,{factoryArgs:Array.prototype.slice.call(arguments,2)})},addColor:function(e,t){return de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
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b(e,t,n){Object.defineProperty(e,t,{get:function(){return"RGB"===this.__state.space?this.__state[t]:(g.recalculateRGB(this,t,n),this.__state[t])},set:function(e){"RGB"!==this.__state.space&&(g.recalculateRGB(this,t,n),this.__state.space="RGB"),this.__state[t]=e}})}function v(e,t){Object.defineProperty(e,t,{get:function(){return"HSV"===this.__state.space?this.__state[t]:(g.recalculateHSV(this),this.__state[t])},set:function(e){"HSV"!==this.__state.space&&(g.recalculateHSV(this),this.__state.space="HSV"),this.__state[t]=e}})}g.recalculateRGB=function(e,t,n){if("HEX"===e.__state.space)e.__state[t]=c.component_from_hex(e.__state.hex,n);else{if("HSV"!==e.__state.space)throw new Error("Corrupted color state");i.extend(e.__state,c.hsv_to_rgb(e.__state.h,e.__state.s,e.__state.v))}},g.recalculateHSV=function(e){var t=c.rgb_to_hsv(e.r,e.g,e.b);i.extend(e.__state,{s:t.s,v:t.v}),i.isNaN(t.h)?i.isUndefined(e.__state.h)&&(e.__state.h=0):e.__state.h=t.h},g.COMPONENTS=["r","g","b","h","s","v","hex","a"],b(g.prototype,"r",2),b(g.prototype,"g",1),b(g.prototype,"b",0),v(g.prototype,"h"),v(g.prototype,"s"),v(g.prototype,"v"),Object.defineProperty(g.prototype,"a",{get:function(){return this.__state.a},set:function(e){this.__state.a=e}}),Object.defineProperty(g.prototype,"hex",{get:function(){return"HEX"!==this.__state.space&&(this.__state.hex=c.rgb_to_hex(this.r,this.g,this.b),this.__state.space="HEX"),this.__state.hex},set:function(e){this.__state.space="HEX",this.__state.hex=e}});var y=function(){function e(t,n){_(this,e),this.initialValue=t[n],this.domElement=document.createElement("div"),this.object=t,this.property=n,this.__onChange=void 0,this.__onFinishChange=void 0}return h(e,[{key:"onChange",value:function(e){return this.__onChange=e,this}},{key:"onFinishChange",value:function(e){return this.__onFinishChange=e,this}},{key:"setValue",value:function(e){return this.object[this.property]=e,this.__onChange&&this.__onChange.call(this,e),this.updateDisplay(),this}},{key:"getValue",value:function(){return this.object[this.property]}},{key:"updateDisplay",value:function(){return this}},{key:"isModified",value:function(){return this.initialValue!==this.getValue()}}]),e}(),w={HTMLEvents:["change"],MouseEvents:["click","mousemove","mousedown","mouseup","mouseover"],KeyboardEvents:["keydown"]},x={};i.each(w,function(e,t){i.each(e,function(e){x[e]=t})});var E=/(\d+(\.\d+)?)px/;function C(e){if("0"===e||i.isUndefined(e))return 0;var t=e.match(E);return i.isNull(t)?0:parseFloat(t[1])}var A={makeSelectable:function(e,t){void 0!==e&&void 0!==e.style&&(e.onselectstart=t?function(){return!1}:function(){},e.style.MozUserSelect=t?"auto":"none",e.style.KhtmlUserSelect=t?"auto":"none",e.unselectable=t?"on":"off")},makeFullscreen:function(e,t,n){var o=n,r=t;i.isUndefined(r)&&(r=!0),i.isUndefined(o)&&(o=!0),e.style.position="absolute",r&&(e.style.left=0,e.style.right=0),o&&(e.style.top=0,e.style.bottom=0)},fakeEvent:function(e,t,n,o){var r=n||{},s=x[t];if(!s)throw new Error("Event type "+t+" not supported.");var a=document.createEvent(s);switch(s){case"MouseEvents":var l=r.x||r.clientX||0,d=r.y||r.clientY||0;a.initMouseEvent(t,r.bubbles||!1,r.cancelable||!0,window,r.clickCount||1,0,0,l,d,!1,!1,!1,!1,0,null);break;case"KeyboardEvents":var c=a.initKeyboardEvent||a.initKeyEvent;i.defaults(r,{cancelable:!0,ctrlKey:!1,altKey:!1,shiftKey:!1,metaKey:!1,keyCode:void 0,charCode:void 0}),c(t,r.bubbles||!1,r.cancelable,window,r.ctrlKey,r.altKey,r.shiftKey,r.metaKey,r.keyCode,r.charCode);break;default:a.initEvent(t,r.bubbles||!1,r.cancelable||!0)}i.defaults(a,o),e.dispatchEvent(a)},bind:function(e,t,n,o){var i=o||!1;return e.addEventListener?e.addEventListener(t,n,i):e.attachEvent&&e.attachEvent("on"+t,n),A},unbind:function(e,t,n,o){var 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t&&o.appendChild(t),n?e.__ul.insertBefore(o,n):e.__ul.appendChild(o),e.onResize(),o}function re(e){A.unbind(window,"resize",e.__resizeHandler),e.saveToLocalStorageIfPossible&&A.unbind(window,"unload",e.saveToLocalStorageIfPossible)}function se(e,t){var n=e.__preset_select[e.__preset_select.selectedIndex];n.innerHTML=t?n.value+"*":n.value}function ae(e,t,n){if(n.__li=t,n.__gui=e,i.extend(n,{options:function(t){if(arguments.length>1){var o=n.__li.nextElementSibling;return n.remove(),de(e,n.object,n.property,{before:o,factoryArgs:[i.toArray(arguments)]})}if(i.isArray(t)||i.isObject(t)){var r=n.__li.nextElementSibling;return n.remove(),de(e,n.object,n.property,{before:r,factoryArgs:[t]})}},name:function(e){return n.__li.firstElementChild.firstElementChild.innerHTML=e,n},listen:function(){return n.__gui.listen(n),n},remove:function(){return n.__gui.remove(n),n}}),n instanceof H){var o=new 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t=e.__save_row=document.createElement("li");A.addClass(e.domElement,"has-save"),e.__ul.insertBefore(t,e.__ul.firstChild),A.addClass(t,"save-row");var n=document.createElement("span");n.innerHTML="&nbsp;",A.addClass(n,"button gears");var o=document.createElement("span");o.innerHTML="Save",A.addClass(o,"button"),A.addClass(o,"save");var r=document.createElement("span");r.innerHTML="New",A.addClass(r,"button"),A.addClass(r,"save-as");var s=document.createElement("span");s.innerHTML="Revert",A.addClass(s,"button"),A.addClass(s,"revert");var a=e.__preset_select=document.createElement("select");if(e.load&&e.load.remembered?i.each(e.load.remembered,function(t,n){ue(e,n,n===e.preset)}):ue(e,Q,!1),A.bind(a,"change",function(){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].innerHTML=e.__preset_select[t].value;e.preset=this.value}),t.appendChild(a),t.appendChild(n),t.appendChild(o),t.appendChild(r),t.appendChild(s),q){var 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de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). 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0;const t="126";exports.REVISION="126";const e={LEFT:0,MIDDLE:1,RIGHT:2,ROTATE:0,DOLLY:1,PAN:2};exports.MOUSE=e;const n={ROTATE:0,PAN:1,DOLLY_PAN:2,DOLLY_ROTATE:3};exports.TOUCH=n;const r=0;exports.CullFaceNone=r;const i=1;exports.CullFaceBack=i;const s=2;exports.CullFaceFront=s;const o=3;exports.CullFaceFrontBack=3;const a=0;exports.BasicShadowMap=0;const l=1;exports.PCFShadowMap=l;const c=2;exports.PCFSoftShadowMap=c;const h=3;exports.VSMShadowMap=h;const u=0;exports.FrontSide=u;const p=1;exports.BackSide=p;const d=2;exports.DoubleSide=d;const m=1;exports.FlatShading=1;const f=2;exports.SmoothShading=2;const g=0;exports.NoBlending=g;const x=1;exports.NormalBlending=x;const v=2;exports.AdditiveBlending=v;const y=3;exports.SubtractiveBlending=y;const _=4;exports.MultiplyBlending=_;const b=5;exports.CustomBlending=b;const w=100;exports.AddEquation=w;const M=101;exports.SubtractEquation=M;const S=102;exports.ReverseSubtractEquation=S;const T=103;exports.MinEquation=T;const E=104;exports.MaxEquation=E;const A=200;exports.ZeroFactor=A;const L=201;exports.OneFactor=L;const R=202;exports.SrcColorFactor=R;const C=203;exports.OneMinusSrcColorFactor=C;const P=204;exports.SrcAlphaFactor=P;const D=205;exports.OneMinusSrcAlphaFactor=D;const I=206;exports.DstAlphaFactor=I;const B=207;exports.OneMinusDstAlphaFactor=B;const N=208;exports.DstColorFactor=N;const F=209;exports.OneMinusDstColorFactor=F;const O=210;exports.SrcAlphaSaturateFactor=O;const z=0;exports.NeverDepth=z;const G=1;exports.AlwaysDepth=G;const H=2;exports.LessDepth=H;const U=3;exports.LessEqualDepth=U;const k=4;exports.EqualDepth=k;const V=5;exports.GreaterEqualDepth=V;const W=6;exports.GreaterDepth=W;const j=7;exports.NotEqualDepth=j;const q=0;exports.MultiplyOperation=q;const X=1;exports.MixOperation=X;const Y=2;exports.AddOperation=Y;const Z=0;exports.NoToneMapping=Z;const J=1;exports.LinearToneMapping=J;const Q=2;exports.ReinhardToneMapping=Q;const K=3;exports.CineonToneMapping=K;const $=4;exports.ACESFilmicToneMapping=$;const tt=5;exports.CustomToneMapping=tt;const et=300;exports.UVMapping=et;const nt=301;exports.CubeReflectionMapping=nt;const rt=302;exports.CubeRefractionMapping=rt;const it=303;exports.EquirectangularReflectionMapping=it;const st=304;exports.EquirectangularRefractionMapping=st;const ot=306;exports.CubeUVReflectionMapping=ot;const at=307;exports.CubeUVRefractionMapping=at;const lt=1e3;exports.RepeatWrapping=lt;const ct=1001;exports.ClampToEdgeWrapping=ct;const ht=1002;exports.MirroredRepeatWrapping=ht;const ut=1003;exports.NearestFilter=ut;const pt=1004;exports.NearestMipmapNearestFilter=pt;const dt=1004;exports.NearestMipMapNearestFilter=1004;const mt=1005;exports.NearestMipmapLinearFilter=mt;const ft=1005;exports.NearestMipMapLinearFilter=1005;const gt=1006;exports.LinearFilter=gt;const xt=1007;exports.LinearMipmapNearestFilter=xt;const vt=1007;exports.LinearMipMapNearestFilter=1007;const yt=1008;exports.LinearMipmapLinearFilter=yt;const _t=1008;exports.LinearMipMapLinearFilter=1008;const bt=1009;exports.UnsignedByteType=bt;const wt=1010;exports.ByteType=wt;const Mt=1011;exports.ShortType=Mt;const St=1012;exports.UnsignedShortType=St;const Tt=1013;exports.IntType=Tt;const Et=1014;exports.UnsignedIntType=Et;const At=1015;exports.FloatType=At;const Lt=1016;exports.HalfFloatType=Lt;const Rt=1017;exports.UnsignedShort4444Type=Rt;const Ct=1018;exports.UnsignedShort5551Type=Ct;const Pt=1019;exports.UnsignedShort565Type=Pt;const Dt=1020;exports.UnsignedInt248Type=Dt;const It=1021;exports.AlphaFormat=It;const Bt=1022;exports.RGBFormat=Bt;const Nt=1023;exports.RGBAFormat=Nt;const Ft=1024;exports.LuminanceFormat=Ft;const Ot=1025;exports.LuminanceAlphaFormat=Ot;const zt=Nt;exports.RGBEFormat=zt;const Gt=1026;exports.DepthFormat=Gt;const Ht=1027;exports.DepthStencilFormat=Ht;const Ut=1028;exports.RedFormat=Ut;const kt=1029;exports.RedIntegerFormat=kt;const Vt=1030;exports.RGFormat=Vt;const Wt=1031;exports.RGIntegerFormat=Wt;const jt=1032;exports.RGBIntegerFormat=jt;const qt=1033;exports.RGBAIntegerFormat=qt;const Xt=33776;exports.RGB_S3TC_DXT1_Format=Xt;const Yt=33777;exports.RGBA_S3TC_DXT1_Format=Yt;const Zt=33778;exports.RGBA_S3TC_DXT3_Format=Zt;const Jt=33779;exports.RGBA_S3TC_DXT5_Format=Jt;const Qt=35840;exports.RGB_PVRTC_4BPPV1_Format=Qt;const Kt=35841;exports.RGB_PVRTC_2BPPV1_Format=Kt;const $t=35842;exports.RGBA_PVRTC_4BPPV1_Format=$t;const te=35843;exports.RGBA_PVRTC_2BPPV1_Format=te;const ee=36196;exports.RGB_ETC1_Format=ee;const ne=37492;exports.RGB_ETC2_Format=ne;const re=37496;exports.RGBA_ETC2_EAC_Format=re;const ie=37808;exports.RGBA_ASTC_4x4_Format=ie;const se=37809;exports.RGBA_ASTC_5x4_Format=se;const oe=37810;exports.RGBA_ASTC_5x5_Format=oe;const ae=37811;exports.RGBA_ASTC_6x5_Format=ae;const le=37812;exports.RGBA_ASTC_6x6_Format=le;const ce=37813;exports.RGBA_ASTC_8x5_Format=ce;const he=37814;exports.RGBA_ASTC_8x6_Format=he;const ue=37815;exports.RGBA_ASTC_8x8_Format=ue;const pe=37816;exports.RGBA_ASTC_10x5_Format=pe;const de=37817;exports.RGBA_ASTC_10x6_Format=de;const me=37818;exports.RGBA_ASTC_10x8_Format=me;const fe=37819;exports.RGBA_ASTC_10x10_Format=fe;const ge=37820;exports.RGBA_ASTC_12x10_Format=ge;const xe=37821;exports.RGBA_ASTC_12x12_Format=xe;const ve=36492;exports.RGBA_BPTC_Format=ve;const ye=37840;exports.SRGB8_ALPHA8_ASTC_4x4_Format=ye;const _e=37841;exports.SRGB8_ALPHA8_ASTC_5x4_Format=_e;const be=37842;exports.SRGB8_ALPHA8_ASTC_5x5_Format=be;const we=37843;exports.SRGB8_ALPHA8_ASTC_6x5_Format=we;const Me=37844;exports.SRGB8_ALPHA8_ASTC_6x6_Format=Me;const Se=37845;exports.SRGB8_ALPHA8_ASTC_8x5_Format=Se;const Te=37846;exports.SRGB8_ALPHA8_ASTC_8x6_Format=Te;const Ee=37847;exports.SRGB8_ALPHA8_ASTC_8x8_Format=Ee;const Ae=37848;exports.SRGB8_ALPHA8_ASTC_10x5_Format=Ae;const Le=37849;exports.SRGB8_ALPHA8_ASTC_10x6_Format=Le;const Re=37850;exports.SRGB8_ALPHA8_ASTC_10x8_Format=Re;const Ce=37851;exports.SRGB8_ALPHA8_ASTC_10x10_Format=Ce;const Pe=37852;exports.SRGB8_ALPHA8_ASTC_12x10_Format=Pe;const De=37853;exports.SRGB8_ALPHA8_ASTC_12x12_Format=De;const Ie=2200;exports.LoopOnce=Ie;const Be=2201;exports.LoopRepeat=Be;const Ne=2202;exports.LoopPingPong=Ne;const Fe=2300;exports.InterpolateDiscrete=Fe;const Oe=2301;exports.InterpolateLinear=Oe;const ze=2302;exports.InterpolateSmooth=ze;const Ge=2400;exports.ZeroCurvatureEnding=Ge;const He=2401;exports.ZeroSlopeEnding=He;const Ue=2402;exports.WrapAroundEnding=Ue;const ke=2500;exports.NormalAnimationBlendMode=ke;const Ve=2501;exports.AdditiveAnimationBlendMode=Ve;const We=0;exports.TrianglesDrawMode=0;const je=1;exports.TriangleStripDrawMode=1;const qe=2;exports.TriangleFanDrawMode=2;const Xe=3e3;exports.LinearEncoding=Xe;const Ye=3001;exports.sRGBEncoding=Ye;const Ze=3007;exports.GammaEncoding=Ze;const Je=3002;exports.RGBEEncoding=Je;const Qe=3003;exports.LogLuvEncoding=Qe;const Ke=3004;exports.RGBM7Encoding=Ke;const $e=3005;exports.RGBM16Encoding=$e;const tn=3006;exports.RGBDEncoding=tn;const en=3200;exports.BasicDepthPacking=en;const nn=3201;exports.RGBADepthPacking=nn;const rn=0;exports.TangentSpaceNormalMap=rn;const sn=1;exports.ObjectSpaceNormalMap=sn;const on=0;exports.ZeroStencilOp=0;const an=7680;exports.KeepStencilOp=an;const ln=7681;exports.ReplaceStencilOp=7681;const cn=7682;exports.IncrementStencilOp=7682;const hn=7683;exports.DecrementStencilOp=7683;const un=34055;exports.IncrementWrapStencilOp=34055;const pn=34056;exports.DecrementWrapStencilOp=34056;const dn=5386;exports.InvertStencilOp=5386;const mn=512;exports.NeverStencilFunc=512;const fn=513;exports.LessStencilFunc=513;const gn=514;exports.EqualStencilFunc=514;const xn=515;exports.LessEqualStencilFunc=515;const vn=516;exports.GreaterStencilFunc=516;const yn=517;exports.NotEqualStencilFunc=517;const _n=518;exports.GreaterEqualStencilFunc=518;const bn=519;exports.AlwaysStencilFunc=bn;const wn=35044;exports.StaticDrawUsage=wn;const Mn=35048;exports.DynamicDrawUsage=Mn;const Sn=35040;exports.StreamDrawUsage=35040;const Tn=35045;exports.StaticReadUsage=35045;const En=35049;exports.DynamicReadUsage=35049;const An=35041;exports.StreamReadUsage=35041;const Ln=35046;exports.StaticCopyUsage=35046;const Rn=35050;exports.DynamicCopyUsage=35050;const Cn=35042;exports.StreamCopyUsage=35042;const Pn="100";exports.GLSL1="100";const Dn="300 es";function In(){}exports.GLSL3=Dn,Object.assign(In.prototype,{addEventListener:function(t,e){void 0===this._listeners&&(this._listeners={});const n=this._listeners;void 0===n[t]&&(n[t]=[]),-1===n[t].indexOf(e)&&n[t].push(e)},hasEventListener:function(t,e){if(void 0===this._listeners)return!1;const n=this._listeners;return void 0!==n[t]&&-1!==n[t].indexOf(e)},removeEventListener:function(t,e){if(void 0===this._listeners)return;const n=this._listeners[t];if(void 0!==n){const t=n.indexOf(e);-1!==t&&n.splice(t,1)}},dispatchEvent:function(t){if(void 0===this._listeners)return;const e=this._listeners[t.type];if(void 0!==e){t.target=this;const n=e.slice(0);for(let e=0,r=n.length;e<r;e++)n[e].call(this,t)}}});const Bn=[];for(let yx=0;yx<256;yx++)Bn[yx]=(yx<16?"0":"")+yx.toString(16);let Nn=1234567;const Fn={DEG2RAD:Math.PI/180,RAD2DEG:180/Math.PI,generateUUID:function(){const t=4294967295*Math.random()|0,e=4294967295*Math.random()|0,n=4294967295*Math.random()|0,r=4294967295*Math.random()|0;return(Bn[255&t]+Bn[t>>8&255]+Bn[t>>16&255]+Bn[t>>24&255]+"-"+Bn[255&e]+Bn[e>>8&255]+"-"+Bn[e>>16&15|64]+Bn[e>>24&255]+"-"+Bn[63&n|128]+Bn[n>>8&255]+"-"+Bn[n>>16&255]+Bn[n>>24&255]+Bn[255&r]+Bn[r>>8&255]+Bn[r>>16&255]+Bn[r>>24&255]).toUpperCase()},clamp:function(t,e,n){return Math.max(e,Math.min(n,t))},euclideanModulo:function(t,e){return(t%e+e)%e},mapLinear:function(t,e,n,r,i){return r+(t-e)*(i-r)/(n-e)},lerp:function(t,e,n){return(1-n)*t+n*e},damp:function(t,e,n,r){return Fn.lerp(t,e,1-Math.exp(-n*r))},pingpong:function(t,e=1){return e-Math.abs(Fn.euclideanModulo(t,2*e)-e)},smoothstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*(3-2*t)},smootherstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*t*(t*(6*t-15)+10)},randInt:function(t,e){return t+Math.floor(Math.random()*(e-t+1))},randFloat:function(t,e){return t+Math.random()*(e-t)},randFloatSpread:function(t){return t*(.5-Math.random())},seededRandom:function(t){return void 0!==t&&(Nn=t%2147483647),((Nn=16807*Nn%2147483647)-1)/2147483646},degToRad:function(t){return t*Fn.DEG2RAD},radToDeg:function(t){return t*Fn.RAD2DEG},isPowerOfTwo:function(t){return 0==(t&t-1)&&0!==t},ceilPowerOfTwo:function(t){return Math.pow(2,Math.ceil(Math.log(t)/Math.LN2))},floorPowerOfTwo:function(t){return Math.pow(2,Math.floor(Math.log(t)/Math.LN2))},setQuaternionFromProperEuler:function(t,e,n,r,i){const s=Math.cos,o=Math.sin,a=s(n/2),l=o(n/2),c=s((e+r)/2),h=o((e+r)/2),u=s((e-r)/2),p=o((e-r)/2),d=s((r-e)/2),m=o((r-e)/2);switch(i){case"XYX":t.set(a*h,l*u,l*p,a*c);break;case"YZY":t.set(l*p,a*h,l*u,a*c);break;case"ZXZ":t.set(l*u,l*p,a*h,a*c);break;case"XZX":t.set(a*h,l*m,l*d,a*c);break;case"YXY":t.set(l*d,a*h,l*m,a*c);break;case"ZYZ":t.set(l*m,l*d,a*h,a*c);break;default:console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+i)}}};exports.MathUtils=exports.Math=Fn;class On{constructor(t=0,e=0){this.x=t,this.y=e}get width(){return this.x}set width(t){this.x=t}get height(){return this.y}set height(t){this.y=t}set(t,e){return this.x=t,this.y=e,this}setScalar(t){return this.x=t,this.y=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y)}copy(t){return this.x=t.x,this.y=t.y,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this)}addScalar(t){return this.x+=t,this.y+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this)}subScalar(t){return this.x-=t,this.y-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this}multiply(t){return this.x*=t.x,this.y*=t.y,this}multiplyScalar(t){return this.x*=t,this.y*=t,this}divide(t){return this.x/=t.x,this.y/=t.y,this}divideScalar(t){return this.multiplyScalar(1/t)}applyMatrix3(t){const e=this.x,n=this.y,r=t.elements;return this.x=r[0]*e+r[3]*n+r[6],this.y=r[1]*e+r[4]*n+r[7],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this}negate(){return this.x=-this.x,this.y=-this.y,this}dot(t){return this.x*t.x+this.y*t.y}cross(t){return this.x*t.y-this.y*t.x}lengthSq(){return this.x*this.x+this.y*this.y}length(){return Math.sqrt(this.x*this.x+this.y*this.y)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)}normalize(){return this.divideScalar(this.length()||1)}angle(){return Math.atan2(-this.y,-this.x)+Math.PI}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y;return e*e+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this}equals(t){return t.x===this.x&&t.y===this.y}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this}rotateAround(t,e){const n=Math.cos(e),r=Math.sin(e),i=this.x-t.x,s=this.y-t.y;return this.x=i*n-s*r+t.x,this.y=i*r+s*n+t.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}}exports.Vector2=On,On.prototype.isVector2=!0;class zn{constructor(){this.elements=[1,0,0,0,1,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l){const c=this.elements;return c[0]=t,c[1]=r,c[2]=o,c[3]=e,c[4]=i,c[5]=a,c[6]=n,c[7]=s,c[8]=l,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],this}extractBasis(t,e,n){return t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(t){const e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[3],a=n[6],l=n[1],c=n[4],h=n[7],u=n[2],p=n[5],d=n[8],m=r[0],f=r[3],g=r[6],x=r[1],v=r[4],y=r[7],_=r[2],b=r[5],w=r[8];return i[0]=s*m+o*x+a*_,i[3]=s*f+o*v+a*b,i[6]=s*g+o*y+a*w,i[1]=l*m+c*x+h*_,i[4]=l*f+c*v+h*b,i[7]=l*g+c*y+h*w,i[2]=u*m+p*x+d*_,i[5]=u*f+p*v+d*b,i[8]=u*g+p*y+d*w,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8];return e*s*c-e*o*l-n*i*c+n*o*a+r*i*l-r*s*a}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=c*s-o*l,u=o*a-c*i,p=l*i-s*a,d=e*h+n*u+r*p;if(0===d)return this.set(0,0,0,0,0,0,0,0,0);const m=1/d;return t[0]=h*m,t[1]=(r*l-c*n)*m,t[2]=(o*n-r*s)*m,t[3]=u*m,t[4]=(c*e-r*a)*m,t[5]=(r*i-o*e)*m,t[6]=p*m,t[7]=(n*a-l*e)*m,t[8]=(s*e-n*i)*m,this}transpose(){let t;const e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){const e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,n,r,i,s,o){const a=Math.cos(i),l=Math.sin(i);return this.set(n*a,n*l,-n*(a*s+l*o)+s+t,-r*l,r*a,-r*(-l*s+a*o)+o+e,0,0,1),this}scale(t,e){const n=this.elements;return n[0]*=t,n[3]*=t,n[6]*=t,n[1]*=e,n[4]*=e,n[7]*=e,this}rotate(t){const e=Math.cos(t),n=Math.sin(t),r=this.elements,i=r[0],s=r[3],o=r[6],a=r[1],l=r[4],c=r[7];return r[0]=e*i+n*a,r[3]=e*s+n*l,r[6]=e*o+n*c,r[1]=-n*i+e*a,r[4]=-n*s+e*l,r[7]=-n*o+e*c,this}translate(t,e){const n=this.elements;return n[0]+=t*n[2],n[3]+=t*n[5],n[6]+=t*n[8],n[1]+=e*n[2],n[4]+=e*n[5],n[7]+=e*n[8],this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<9;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<9;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t}clone(){return(new this.constructor).fromArray(this.elements)}}let Gn;exports.Matrix3=zn,zn.prototype.isMatrix3=!0;const Hn={getDataURL:function(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===Gn&&(Gn=document.createElementNS("http://www.w3.org/1999/xhtml","canvas")),Gn.width=t.width,Gn.height=t.height;const n=Gn.getContext("2d");t instanceof ImageData?n.putImageData(t,0,0):n.drawImage(t,0,0,t.width,t.height),e=Gn}return e.width>2048||e.height>2048?e.toDataURL("image/jpeg",.6):e.toDataURL("image/png")}};exports.ImageUtils=Hn;let Un=0;class kn extends In{constructor(t=kn.DEFAULT_IMAGE,e=kn.DEFAULT_MAPPING,n=ct,r=ct,i=gt,s=yt,o=Nt,a=bt,l=1,c=Xe){super(),Object.defineProperty(this,"id",{value:Un++}),this.uuid=Fn.generateUUID(),this.name="",this.image=t,this.mipmaps=[],this.mapping=e,this.wrapS=n,this.wrapT=r,this.magFilter=i,this.minFilter=s,this.anisotropy=l,this.format=o,this.internalFormat=null,this.type=a,this.offset=new On(0,0),this.repeat=new On(1,1),this.center=new On(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new zn,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.encoding=c,this.version=0,this.onUpdate=null}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.image=t.image,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.encoding=t.encoding,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const n={metadata:{version:4.5,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,type:this.type,encoding:this.encoding,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(void 0!==this.image){const r=this.image;if(void 0===r.uuid&&(r.uuid=Fn.generateUUID()),!e&&void 0===t.images[r.uuid]){let e;if(Array.isArray(r)){e=[];for(let t=0,n=r.length;t<n;t++)r[t].isDataTexture?e.push(Vn(r[t].image)):e.push(Vn(r[t]))}else e=Vn(r);t.images[r.uuid]={uuid:r.uuid,url:e}}n.image=r.uuid}return e||(t.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==et)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case lt:t.x=t.x-Math.floor(t.x);break;case ct:t.x=t.x<0?0:1;break;case ht:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case lt:t.y=t.y-Math.floor(t.y);break;case ct:t.y=t.y<0?0:1;break;case ht:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&this.version++}}function Vn(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?Hn.getDataURL(t):t.data?{data:Array.prototype.slice.call(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}exports.Texture=kn,kn.DEFAULT_IMAGE=void 0,kn.DEFAULT_MAPPING=et,kn.prototype.isTexture=!0;class Wn{constructor(t=0,e=0,n=0,r=1){this.x=t,this.y=e,this.z=n,this.w=r}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,n,r){return this.x=t,this.y=e,this.z=n,this.w=r,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=this.w,s=t.elements;return this.x=s[0]*e+s[4]*n+s[8]*r+s[12]*i,this.y=s[1]*e+s[5]*n+s[9]*r+s[13]*i,this.z=s[2]*e+s[6]*n+s[10]*r+s[14]*i,this.w=s[3]*e+s[7]*n+s[11]*r+s[15]*i,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,n,r,i;const s=t.elements,o=s[0],a=s[4],l=s[8],c=s[1],h=s[5],u=s[9],p=s[2],d=s[6],m=s[10];if(Math.abs(a-c)<.01&&Math.abs(l-p)<.01&&Math.abs(u-d)<.01){if(Math.abs(a+c)<.1&&Math.abs(l+p)<.1&&Math.abs(u+d)<.1&&Math.abs(o+h+m-3)<.1)return this.set(1,0,0,0),this;e=Math.PI;const t=(o+1)/2,s=(h+1)/2,f=(m+1)/2,g=(a+c)/4,x=(l+p)/4,v=(u+d)/4;return t>s&&t>f?t<.01?(n=0,r=.707106781,i=.707106781):(r=g/(n=Math.sqrt(t)),i=x/n):s>f?s<.01?(n=.707106781,r=0,i=.707106781):(n=g/(r=Math.sqrt(s)),i=v/r):f<.01?(n=.707106781,r=.707106781,i=0):(n=x/(i=Math.sqrt(f)),r=v/i),this.set(n,r,i,e),this}let f=Math.sqrt((d-u)*(d-u)+(l-p)*(l-p)+(c-a)*(c-a));return Math.abs(f)<.001&&(f=1),this.x=(d-u)/f,this.y=(l-p)/f,this.z=(c-a)/f,this.w=Math.acos((o+h+m-1)/2),this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this.w=Math.max(t.w,Math.min(e.w,this.w)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this.w=Math.max(t,Math.min(e,this.w)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this.w=this.w<0?Math.ceil(this.w):Math.floor(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this.w=t.w+(e.w-t.w)*n,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}}exports.Vector4=Wn,Wn.prototype.isVector4=!0;class jn extends In{constructor(t,e,n){super(),this.width=t,this.height=e,this.depth=1,this.scissor=new Wn(0,0,t,e),this.scissorTest=!1,this.viewport=new Wn(0,0,t,e),n=n||{},this.texture=new kn(void 0,n.mapping,n.wrapS,n.wrapT,n.magFilter,n.minFilter,n.format,n.type,n.anisotropy,n.encoding),this.texture.image={},this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=1,this.texture.generateMipmaps=void 0!==n.generateMipmaps&&n.generateMipmaps,this.texture.minFilter=void 0!==n.minFilter?n.minFilter:gt,this.depthBuffer=void 0===n.depthBuffer||n.depthBuffer,this.stencilBuffer=void 0!==n.stencilBuffer&&n.stencilBuffer,this.depthTexture=void 0!==n.depthTexture?n.depthTexture:null}setTexture(t){t.image={width:this.width,height:this.height,depth:this.depth},this.texture=t}setSize(t,e,n=1){this.width===t&&this.height===e&&this.depth===n||(this.width=t,this.height=e,this.depth=n,this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=n,this.dispose()),this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.width=t.width,this.height=t.height,this.depth=t.depth,this.viewport.copy(t.viewport),this.texture=t.texture.clone(),this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.depthTexture=t.depthTexture,this}dispose(){this.dispatchEvent({type:"dispose"})}}exports.WebGLRenderTarget=jn,jn.prototype.isWebGLRenderTarget=!0;class qn extends jn{constructor(t,e,n){super(t,e,n),this.samples=4}copy(t){return super.copy.call(this,t),this.samples=t.samples,this}}exports.WebGLMultisampleRenderTarget=qn,qn.prototype.isWebGLMultisampleRenderTarget=!0;class Xn{constructor(t=0,e=0,n=0,r=1){this._x=t,this._y=e,this._z=n,this._w=r}static slerp(t,e,n,r){return n.copy(t).slerp(e,r)}static slerpFlat(t,e,n,r,i,s,o){let a=n[r+0],l=n[r+1],c=n[r+2],h=n[r+3];const u=i[s+0],p=i[s+1],d=i[s+2],m=i[s+3];if(0===o)return t[e+0]=a,t[e+1]=l,t[e+2]=c,void(t[e+3]=h);if(1===o)return t[e+0]=u,t[e+1]=p,t[e+2]=d,void(t[e+3]=m);if(h!==m||a!==u||l!==p||c!==d){let t=1-o;const e=a*u+l*p+c*d+h*m,n=e>=0?1:-1,r=1-e*e;if(r>Number.EPSILON){const i=Math.sqrt(r),s=Math.atan2(i,e*n);t=Math.sin(t*s)/i,o=Math.sin(o*s)/i}const i=o*n;if(a=a*t+u*i,l=l*t+p*i,c=c*t+d*i,h=h*t+m*i,t===1-o){const t=1/Math.sqrt(a*a+l*l+c*c+h*h);a*=t,l*=t,c*=t,h*=t}}t[e]=a,t[e+1]=l,t[e+2]=c,t[e+3]=h}static multiplyQuaternionsFlat(t,e,n,r,i,s){const o=n[r],a=n[r+1],l=n[r+2],c=n[r+3],h=i[s],u=i[s+1],p=i[s+2],d=i[s+3];return t[e]=o*d+c*h+a*p-l*u,t[e+1]=a*d+c*u+l*h-o*p,t[e+2]=l*d+c*p+o*u-a*h,t[e+3]=c*d-o*h-a*u-l*p,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._w=r,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e){if(!t||!t.isEuler)throw new Error("THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.");const n=t._x,r=t._y,i=t._z,s=t._order,o=Math.cos,a=Math.sin,l=o(n/2),c=o(r/2),h=o(i/2),u=a(n/2),p=a(r/2),d=a(i/2);switch(s){case"XYZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"YXZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"ZXY":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"ZYX":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"YZX":this._x=u*c*h+l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h-u*p*d;break;case"XZY":this._x=u*c*h-l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h+u*p*d;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)}return!1!==e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const n=e/2,r=Math.sin(n);return this._x=t.x*r,this._y=t.y*r,this._z=t.z*r,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,n=e[0],r=e[4],i=e[8],s=e[1],o=e[5],a=e[9],l=e[2],c=e[6],h=e[10],u=n+o+h;if(u>0){const t=.5/Math.sqrt(u+1);this._w=.25/t,this._x=(c-a)*t,this._y=(i-l)*t,this._z=(s-r)*t}else if(n>o&&n>h){const t=2*Math.sqrt(1+n-o-h);this._w=(c-a)/t,this._x=.25*t,this._y=(r+s)/t,this._z=(i+l)/t}else if(o>h){const t=2*Math.sqrt(1+o-n-h);this._w=(i-l)/t,this._x=(r+s)/t,this._y=.25*t,this._z=(a+c)/t}else{const t=2*Math.sqrt(1+h-n-o);this._w=(s-r)/t,this._x=(i+l)/t,this._y=(a+c)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let n=t.dot(e)+1;return n<1e-6?(n=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=n):(this._x=0,this._y=-t.z,this._z=t.y,this._w=n)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=n),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(Fn.clamp(this.dot(t),-1,1)))}rotateTowards(t,e){const n=this.angleTo(t);if(0===n)return this;const r=Math.min(1,e/n);return this.slerp(t,r),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t,e){return void 0!==e?(console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead."),this.multiplyQuaternions(t,e)):this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const n=t._x,r=t._y,i=t._z,s=t._w,o=e._x,a=e._y,l=e._z,c=e._w;return this._x=n*c+s*o+r*l-i*a,this._y=r*c+s*a+i*o-n*l,this._z=i*c+s*l+n*a-r*o,this._w=s*c-n*o-r*a-i*l,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const n=this._x,r=this._y,i=this._z,s=this._w;let o=s*t._w+n*t._x+r*t._y+i*t._z;if(o<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,o=-o):this.copy(t),o>=1)return this._w=s,this._x=n,this._y=r,this._z=i,this;const a=1-o*o;if(a<=Number.EPSILON){const t=1-e;return this._w=t*s+e*this._w,this._x=t*n+e*this._x,this._y=t*r+e*this._y,this._z=t*i+e*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(a),c=Math.atan2(l,o),h=Math.sin((1-e)*c)/l,u=Math.sin(e*c)/l;return this._w=s*h+this._w*u,this._x=n*h+this._x*u,this._y=r*h+this._y*u,this._z=i*h+this._z*u,this._onChangeCallback(),this}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Quaternion=Xn,Xn.prototype.isQuaternion=!0;class Yn{constructor(t=0,e=0,n=0){this.x=t,this.y=e,this.z=n}set(t,e,n){return void 0===n&&(n=this.z),this.x=t,this.y=e,this.z=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(t,e)):(this.x*=t.x,this.y*=t.y,this.z*=t.z,this)}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return t&&t.isEuler||console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order."),this.applyQuaternion(Jn.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(Jn.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[3]*n+i[6]*r,this.y=i[1]*e+i[4]*n+i[7]*r,this.z=i[2]*e+i[5]*n+i[8]*r,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=t.elements,s=1/(i[3]*e+i[7]*n+i[11]*r+i[15]);return this.x=(i[0]*e+i[4]*n+i[8]*r+i[12])*s,this.y=(i[1]*e+i[5]*n+i[9]*r+i[13])*s,this.z=(i[2]*e+i[6]*n+i[10]*r+i[14])*s,this}applyQuaternion(t){const e=this.x,n=this.y,r=this.z,i=t.x,s=t.y,o=t.z,a=t.w,l=a*e+s*r-o*n,c=a*n+o*e-i*r,h=a*r+i*n-s*e,u=-i*e-s*n-o*r;return this.x=l*a+u*-i+c*-o-h*-s,this.y=c*a+u*-s+h*-i-l*-o,this.z=h*a+u*-o+l*-s-c*-i,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[4]*n+i[8]*r,this.y=i[1]*e+i[5]*n+i[9]*r,this.z=i[2]*e+i[6]*n+i[10]*r,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this}cross(t,e){return void 0!==e?(console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(t,e)):this.crossVectors(this,t)}crossVectors(t,e){const n=t.x,r=t.y,i=t.z,s=e.x,o=e.y,a=e.z;return this.x=r*a-i*o,this.y=i*s-n*a,this.z=n*o-r*s,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const n=t.dot(this)/e;return this.copy(t).multiplyScalar(n)}projectOnPlane(t){return Zn.copy(this).projectOnVector(t),this.sub(Zn)}reflect(t){return this.sub(Zn.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const n=this.dot(t)/e;return Math.acos(Fn.clamp(n,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y,r=this.z-t.z;return e*e+n*n+r*r}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,n){const r=Math.sin(e)*t;return this.x=r*Math.sin(n),this.y=Math.cos(e)*t,this.z=r*Math.cos(n),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,n){return this.x=t*Math.sin(e),this.y=n,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),n=this.setFromMatrixColumn(t,1).length(),r=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=n,this.z=r,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}}exports.Vector3=Yn,Yn.prototype.isVector3=!0;const Zn=new Yn,Jn=new Xn;class Qn{constructor(t=new Yn(1/0,1/0,1/0),e=new Yn(-1/0,-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.length;a<l;a+=3){const l=t[a],c=t[a+1],h=t[a+2];l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromBufferAttribute(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.count;a<l;a++){const l=t.getX(a),c=t.getY(a),h=t.getZ(a);l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=$n.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}setFromObject(t){return this.makeEmpty(),this.expandByObject(t)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return void 0===t&&(console.warn("THREE.Box3: .getCenter() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box3: .getSize() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t){t.updateWorldMatrix(!1,!1);const e=t.geometry;void 0!==e&&(null===e.boundingBox&&e.computeBoundingBox(),tr.copy(e.boundingBox),tr.applyMatrix4(t.matrixWorld),this.union(tr));const n=t.children;for(let r=0,i=n.length;r<i;r++)this.expandByObject(n[r]);return this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y||t.z<this.min.z||t.z>this.max.z)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box3: .getParameter() target is now required"),e=new Yn),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y||t.max.z<this.min.z||t.min.z>this.max.z)}intersectsSphere(t){return this.clampPoint(t.center,$n),$n.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,n;return t.normal.x>0?(e=t.normal.x*this.min.x,n=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,n=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,n+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,n+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,n+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,n+=t.normal.z*this.min.z),e<=-t.constant&&n>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(ar),lr.subVectors(this.max,ar),er.subVectors(t.a,ar),nr.subVectors(t.b,ar),rr.subVectors(t.c,ar),ir.subVectors(nr,er),sr.subVectors(rr,nr),or.subVectors(er,rr);let e=[0,-ir.z,ir.y,0,-sr.z,sr.y,0,-or.z,or.y,ir.z,0,-ir.x,sr.z,0,-sr.x,or.z,0,-or.x,-ir.y,ir.x,0,-sr.y,sr.x,0,-or.y,or.x,0];return!!ur(e,er,nr,rr,lr)&&(!!ur(e=[1,0,0,0,1,0,0,0,1],er,nr,rr,lr)&&(cr.crossVectors(ir,sr),ur(e=[cr.x,cr.y,cr.z],er,nr,rr,lr)))}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box3: .clampPoint() target is now required"),e=new Yn),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return $n.copy(t).clamp(this.min,this.max).sub(t).length()}getBoundingSphere(t){return void 0===t&&console.error("THREE.Box3: .getBoundingSphere() target is now required"),this.getCenter(t.center),t.radius=.5*this.getSize($n).length(),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()?this:(Kn[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),Kn[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),Kn[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),Kn[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),Kn[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),Kn[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),Kn[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),Kn[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(Kn),this)}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box3=Qn,Qn.prototype.isBox3=!0;const Kn=[new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn],$n=new Yn,tr=new Qn,er=new Yn,nr=new Yn,rr=new Yn,ir=new Yn,sr=new Yn,or=new Yn,ar=new Yn,lr=new Yn,cr=new Yn,hr=new Yn;function ur(t,e,n,r,i){for(let s=0,o=t.length-3;s<=o;s+=3){hr.fromArray(t,s);const o=i.x*Math.abs(hr.x)+i.y*Math.abs(hr.y)+i.z*Math.abs(hr.z),a=e.dot(hr),l=n.dot(hr),c=r.dot(hr);if(Math.max(-Math.max(a,l,c),Math.min(a,l,c))>o)return!1}return!0}const pr=new Qn;class dr{constructor(t=new Yn,e=-1){this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const n=this.center;void 0!==e?n.copy(e):pr.setFromPoints(t).getCenter(n);let r=0;for(let i=0,s=t.length;i<s;i++)r=Math.max(r,n.distanceToSquared(t[i]));return this.radius=Math.sqrt(r),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const n=this.center.distanceToSquared(t);return void 0===e&&(console.warn("THREE.Sphere: .clampPoint() target is now required"),e=new Yn),e.copy(t),n>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return void 0===t&&(console.warn("THREE.Sphere: .getBoundingBox() target is now required"),t=new Qn),this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}exports.Sphere=dr;const mr=new Yn,fr=new Yn,gr=new Yn,xr=new Yn,vr=new Yn,yr=new Yn,_r=new Yn;class br{constructor(t=new Yn,e=new Yn(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return void 0===e&&(console.warn("THREE.Ray: .at() target is now required"),e=new Yn),e.copy(this.direction).multiplyScalar(t).add(this.origin)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,mr)),this}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Ray: .closestPointToPoint() target is now required"),e=new Yn),e.subVectors(t,this.origin);const n=e.dot(this.direction);return n<0?e.copy(this.origin):e.copy(this.direction).multiplyScalar(n).add(this.origin)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=mr.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(mr.copy(this.direction).multiplyScalar(e).add(this.origin),mr.distanceToSquared(t))}distanceSqToSegment(t,e,n,r){fr.copy(t).add(e).multiplyScalar(.5),gr.copy(e).sub(t).normalize(),xr.copy(this.origin).sub(fr);const i=.5*t.distanceTo(e),s=-this.direction.dot(gr),o=xr.dot(this.direction),a=-xr.dot(gr),l=xr.lengthSq(),c=Math.abs(1-s*s);let h,u,p,d;if(c>0)if(u=s*o-a,d=i*c,(h=s*a-o)>=0)if(u>=-d)if(u<=d){const t=1/c;p=(h*=t)*(h+s*(u*=t)+2*o)+u*(s*h+u+2*a)+l}else u=i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u=-i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u<=-d?p=-(h=Math.max(0,-(-s*i+o)))*h+(u=h>0?-i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l:u<=d?(h=0,p=(u=Math.min(Math.max(-i,-a),i))*(u+2*a)+l):p=-(h=Math.max(0,-(s*i+o)))*h+(u=h>0?i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l;else u=s>0?-i:i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;return n&&n.copy(this.direction).multiplyScalar(h).add(this.origin),r&&r.copy(gr).multiplyScalar(u).add(fr),p}intersectSphere(t,e){mr.subVectors(t.center,this.origin);const n=mr.dot(this.direction),r=mr.dot(mr)-n*n,i=t.radius*t.radius;if(r>i)return null;const s=Math.sqrt(i-r),o=n-s,a=n+s;return o<0&&a<0?null:o<0?this.at(a,e):this.at(o,e)}intersectsSphere(t){return this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){const e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(t.normal)+t.constant)/e;return n>=0?n:null}intersectPlane(t,e){const n=this.distanceToPlane(t);return null===n?null:this.at(n,e)}intersectsPlane(t){const e=t.distanceToPoint(this.origin);return 0===e||t.normal.dot(this.direction)*e<0}intersectBox(t,e){let n,r,i,s,o,a;const l=1/this.direction.x,c=1/this.direction.y,h=1/this.direction.z,u=this.origin;return l>=0?(n=(t.min.x-u.x)*l,r=(t.max.x-u.x)*l):(n=(t.max.x-u.x)*l,r=(t.min.x-u.x)*l),c>=0?(i=(t.min.y-u.y)*c,s=(t.max.y-u.y)*c):(i=(t.max.y-u.y)*c,s=(t.min.y-u.y)*c),n>s||i>r?null:((i>n||n!=n)&&(n=i),(s<r||r!=r)&&(r=s),h>=0?(o=(t.min.z-u.z)*h,a=(t.max.z-u.z)*h):(o=(t.max.z-u.z)*h,a=(t.min.z-u.z)*h),n>a||o>r?null:((o>n||n!=n)&&(n=o),(a<r||r!=r)&&(r=a),r<0?null:this.at(n>=0?n:r,e)))}intersectsBox(t){return null!==this.intersectBox(t,mr)}intersectTriangle(t,e,n,r,i){vr.subVectors(e,t),yr.subVectors(n,t),_r.crossVectors(vr,yr);let s,o=this.direction.dot(_r);if(o>0){if(r)return null;s=1}else{if(!(o<0))return null;s=-1,o=-o}xr.subVectors(this.origin,t);const a=s*this.direction.dot(yr.crossVectors(xr,yr));if(a<0)return null;const l=s*this.direction.dot(vr.cross(xr));if(l<0)return null;if(a+l>o)return null;const c=-s*xr.dot(_r);return c<0?null:this.at(c/o,i)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}exports.Ray=br;class wr{constructor(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l,c,h,u,p,d,m,f){const g=this.elements;return g[0]=t,g[4]=e,g[8]=n,g[12]=r,g[1]=i,g[5]=s,g[9]=o,g[13]=a,g[2]=l,g[6]=c,g[10]=h,g[14]=u,g[3]=p,g[7]=d,g[11]=m,g[15]=f,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new wr).fromArray(this.elements)}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],e[9]=n[9],e[10]=n[10],e[11]=n[11],e[12]=n[12],e[13]=n[13],e[14]=n[14],e[15]=n[15],this}copyPosition(t){const e=this.elements,n=t.elements;return e[12]=n[12],e[13]=n[13],e[14]=n[14],this}setFromMatrix3(t){const e=t.elements;return this.set(e[0],e[3],e[6],0,e[1],e[4],e[7],0,e[2],e[5],e[8],0,0,0,0,1),this}extractBasis(t,e,n){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(t,e,n){return this.set(t.x,e.x,n.x,0,t.y,e.y,n.y,0,t.z,e.z,n.z,0,0,0,0,1),this}extractRotation(t){const e=this.elements,n=t.elements,r=1/Mr.setFromMatrixColumn(t,0).length(),i=1/Mr.setFromMatrixColumn(t,1).length(),s=1/Mr.setFromMatrixColumn(t,2).length();return e[0]=n[0]*r,e[1]=n[1]*r,e[2]=n[2]*r,e[3]=0,e[4]=n[4]*i,e[5]=n[5]*i,e[6]=n[6]*i,e[7]=0,e[8]=n[8]*s,e[9]=n[9]*s,e[10]=n[10]*s,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromEuler(t){t&&t.isEuler||console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.");const e=this.elements,n=t.x,r=t.y,i=t.z,s=Math.cos(n),o=Math.sin(n),a=Math.cos(r),l=Math.sin(r),c=Math.cos(i),h=Math.sin(i);if("XYZ"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=-a*h,e[8]=l,e[1]=n+r*l,e[5]=t-i*l,e[9]=-o*a,e[2]=i-t*l,e[6]=r+n*l,e[10]=s*a}else if("YXZ"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t+i*o,e[4]=r*o-n,e[8]=s*l,e[1]=s*h,e[5]=s*c,e[9]=-o,e[2]=n*o-r,e[6]=i+t*o,e[10]=s*a}else if("ZXY"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t-i*o,e[4]=-s*h,e[8]=r+n*o,e[1]=n+r*o,e[5]=s*c,e[9]=i-t*o,e[2]=-s*l,e[6]=o,e[10]=s*a}else if("ZYX"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=r*l-n,e[8]=t*l+i,e[1]=a*h,e[5]=i*l+t,e[9]=n*l-r,e[2]=-l,e[6]=o*a,e[10]=s*a}else if("YZX"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=i-t*h,e[8]=r*h+n,e[1]=h,e[5]=s*c,e[9]=-o*c,e[2]=-l*c,e[6]=n*h+r,e[10]=t-i*h}else if("XZY"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=-h,e[8]=l*c,e[1]=t*h+i,e[5]=s*c,e[9]=n*h-r,e[2]=r*h-n,e[6]=o*c,e[10]=i*h+t}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromQuaternion(t){return this.compose(Tr,t,Er)}lookAt(t,e,n){const r=this.elements;return Rr.subVectors(t,e),0===Rr.lengthSq()&&(Rr.z=1),Rr.normalize(),Ar.crossVectors(n,Rr),0===Ar.lengthSq()&&(1===Math.abs(n.z)?Rr.x+=1e-4:Rr.z+=1e-4,Rr.normalize(),Ar.crossVectors(n,Rr)),Ar.normalize(),Lr.crossVectors(Rr,Ar),r[0]=Ar.x,r[4]=Lr.x,r[8]=Rr.x,r[1]=Ar.y,r[5]=Lr.y,r[9]=Rr.y,r[2]=Ar.z,r[6]=Lr.z,r[10]=Rr.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(t,e)):this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[4],a=n[8],l=n[12],c=n[1],h=n[5],u=n[9],p=n[13],d=n[2],m=n[6],f=n[10],g=n[14],x=n[3],v=n[7],y=n[11],_=n[15],b=r[0],w=r[4],M=r[8],S=r[12],T=r[1],E=r[5],A=r[9],L=r[13],R=r[2],C=r[6],P=r[10],D=r[14],I=r[3],B=r[7],N=r[11],F=r[15];return i[0]=s*b+o*T+a*R+l*I,i[4]=s*w+o*E+a*C+l*B,i[8]=s*M+o*A+a*P+l*N,i[12]=s*S+o*L+a*D+l*F,i[1]=c*b+h*T+u*R+p*I,i[5]=c*w+h*E+u*C+p*B,i[9]=c*M+h*A+u*P+p*N,i[13]=c*S+h*L+u*D+p*F,i[2]=d*b+m*T+f*R+g*I,i[6]=d*w+m*E+f*C+g*B,i[10]=d*M+m*A+f*P+g*N,i[14]=d*S+m*L+f*D+g*F,i[3]=x*b+v*T+y*R+_*I,i[7]=x*w+v*E+y*C+_*B,i[11]=x*M+v*A+y*P+_*N,i[15]=x*S+v*L+y*D+_*F,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[4],r=t[8],i=t[12],s=t[1],o=t[5],a=t[9],l=t[13],c=t[2],h=t[6],u=t[10],p=t[14];return t[3]*(+i*a*h-r*l*h-i*o*u+n*l*u+r*o*p-n*a*p)+t[7]*(+e*a*p-e*l*u+i*s*u-r*s*p+r*l*c-i*a*c)+t[11]*(+e*l*h-e*o*p-i*s*h+n*s*p+i*o*c-n*l*c)+t[15]*(-r*o*c-e*a*h+e*o*u+r*s*h-n*s*u+n*a*c)}transpose(){const t=this.elements;let e;return e=t[1],t[1]=t[4],t[4]=e,e=t[2],t[2]=t[8],t[8]=e,e=t[6],t[6]=t[9],t[9]=e,e=t[3],t[3]=t[12],t[12]=e,e=t[7],t[7]=t[13],t[13]=e,e=t[11],t[11]=t[14],t[14]=e,this}setPosition(t,e,n){const r=this.elements;return t.isVector3?(r[12]=t.x,r[13]=t.y,r[14]=t.z):(r[12]=t,r[13]=e,r[14]=n),this}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=t[9],u=t[10],p=t[11],d=t[12],m=t[13],f=t[14],g=t[15],x=h*f*l-m*u*l+m*a*p-o*f*p-h*a*g+o*u*g,v=d*u*l-c*f*l-d*a*p+s*f*p+c*a*g-s*u*g,y=c*m*l-d*h*l+d*o*p-s*m*p-c*o*g+s*h*g,_=d*h*a-c*m*a-d*o*u+s*m*u+c*o*f-s*h*f,b=e*x+n*v+r*y+i*_;if(0===b)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const w=1/b;return t[0]=x*w,t[1]=(m*u*i-h*f*i-m*r*p+n*f*p+h*r*g-n*u*g)*w,t[2]=(o*f*i-m*a*i+m*r*l-n*f*l-o*r*g+n*a*g)*w,t[3]=(h*a*i-o*u*i-h*r*l+n*u*l+o*r*p-n*a*p)*w,t[4]=v*w,t[5]=(c*f*i-d*u*i+d*r*p-e*f*p-c*r*g+e*u*g)*w,t[6]=(d*a*i-s*f*i-d*r*l+e*f*l+s*r*g-e*a*g)*w,t[7]=(s*u*i-c*a*i+c*r*l-e*u*l-s*r*p+e*a*p)*w,t[8]=y*w,t[9]=(d*h*i-c*m*i-d*n*p+e*m*p+c*n*g-e*h*g)*w,t[10]=(s*m*i-d*o*i+d*n*l-e*m*l-s*n*g+e*o*g)*w,t[11]=(c*o*i-s*h*i-c*n*l+e*h*l+s*n*p-e*o*p)*w,t[12]=_*w,t[13]=(c*m*r-d*h*r+d*n*u-e*m*u-c*n*f+e*h*f)*w,t[14]=(d*o*r-s*m*r-d*n*a+e*m*a+s*n*f-e*o*f)*w,t[15]=(s*h*r-c*o*r+c*n*a-e*h*a-s*n*u+e*o*u)*w,this}scale(t){const e=this.elements,n=t.x,r=t.y,i=t.z;return e[0]*=n,e[4]*=r,e[8]*=i,e[1]*=n,e[5]*=r,e[9]*=i,e[2]*=n,e[6]*=r,e[10]*=i,e[3]*=n,e[7]*=r,e[11]*=i,this}getMaxScaleOnAxis(){const t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],n=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],r=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,n,r))}makeTranslation(t,e,n){return this.set(1,0,0,t,0,1,0,e,0,0,1,n,0,0,0,1),this}makeRotationX(t){const e=Math.cos(t),n=Math.sin(t);return this.set(1,0,0,0,0,e,-n,0,0,n,e,0,0,0,0,1),this}makeRotationY(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,0,n,0,0,1,0,0,-n,0,e,0,0,0,0,1),this}makeRotationZ(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,-n,0,0,n,e,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(t,e){const n=Math.cos(e),r=Math.sin(e),i=1-n,s=t.x,o=t.y,a=t.z,l=i*s,c=i*o;return this.set(l*s+n,l*o-r*a,l*a+r*o,0,l*o+r*a,c*o+n,c*a-r*s,0,l*a-r*o,c*a+r*s,i*a*a+n,0,0,0,0,1),this}makeScale(t,e,n){return this.set(t,0,0,0,0,e,0,0,0,0,n,0,0,0,0,1),this}makeShear(t,e,n){return this.set(1,e,n,0,t,1,n,0,t,e,1,0,0,0,0,1),this}compose(t,e,n){const r=this.elements,i=e._x,s=e._y,o=e._z,a=e._w,l=i+i,c=s+s,h=o+o,u=i*l,p=i*c,d=i*h,m=s*c,f=s*h,g=o*h,x=a*l,v=a*c,y=a*h,_=n.x,b=n.y,w=n.z;return r[0]=(1-(m+g))*_,r[1]=(p+y)*_,r[2]=(d-v)*_,r[3]=0,r[4]=(p-y)*b,r[5]=(1-(u+g))*b,r[6]=(f+x)*b,r[7]=0,r[8]=(d+v)*w,r[9]=(f-x)*w,r[10]=(1-(u+m))*w,r[11]=0,r[12]=t.x,r[13]=t.y,r[14]=t.z,r[15]=1,this}decompose(t,e,n){const r=this.elements;let i=Mr.set(r[0],r[1],r[2]).length();const s=Mr.set(r[4],r[5],r[6]).length(),o=Mr.set(r[8],r[9],r[10]).length();this.determinant()<0&&(i=-i),t.x=r[12],t.y=r[13],t.z=r[14],Sr.copy(this);const a=1/i,l=1/s,c=1/o;return Sr.elements[0]*=a,Sr.elements[1]*=a,Sr.elements[2]*=a,Sr.elements[4]*=l,Sr.elements[5]*=l,Sr.elements[6]*=l,Sr.elements[8]*=c,Sr.elements[9]*=c,Sr.elements[10]*=c,e.setFromRotationMatrix(Sr),n.x=i,n.y=s,n.z=o,this}makePerspective(t,e,n,r,i,s){void 0===s&&console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.");const o=this.elements,a=2*i/(e-t),l=2*i/(n-r),c=(e+t)/(e-t),h=(n+r)/(n-r),u=-(s+i)/(s-i),p=-2*s*i/(s-i);return o[0]=a,o[4]=0,o[8]=c,o[12]=0,o[1]=0,o[5]=l,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=u,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(t,e,n,r,i,s){const o=this.elements,a=1/(e-t),l=1/(n-r),c=1/(s-i),h=(e+t)*a,u=(n+r)*l,p=(s+i)*c;return o[0]=2*a,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*l,o[9]=0,o[13]=-u,o[2]=0,o[6]=0,o[10]=-2*c,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<16;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<16;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t[e+9]=n[9],t[e+10]=n[10],t[e+11]=n[11],t[e+12]=n[12],t[e+13]=n[13],t[e+14]=n[14],t[e+15]=n[15],t}}exports.Matrix4=wr,wr.prototype.isMatrix4=!0;const Mr=new Yn,Sr=new wr,Tr=new Yn(0,0,0),Er=new Yn(1,1,1),Ar=new Yn,Lr=new Yn,Rr=new Yn,Cr=new wr,Pr=new Xn;class Dr{constructor(t=0,e=0,n=0,r=Dr.DefaultOrder){this._x=t,this._y=e,this._z=n,this._order=r}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._order=r||this._order,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e,n){const r=Fn.clamp,i=t.elements,s=i[0],o=i[4],a=i[8],l=i[1],c=i[5],h=i[9],u=i[2],p=i[6],d=i[10];switch(e=e||this._order){case"XYZ":this._y=Math.asin(r(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-h,d),this._z=Math.atan2(-o,s)):(this._x=Math.atan2(p,c),this._z=0);break;case"YXZ":this._x=Math.asin(-r(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(l,c)):(this._y=Math.atan2(-u,s),this._z=0);break;case"ZXY":this._x=Math.asin(r(p,-1,1)),Math.abs(p)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-o,c)):(this._y=0,this._z=Math.atan2(l,s));break;case"ZYX":this._y=Math.asin(-r(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(p,d),this._z=Math.atan2(l,s)):(this._x=0,this._z=Math.atan2(-o,c));break;case"YZX":this._z=Math.asin(r(l,-1,1)),Math.abs(l)<.9999999?(this._x=Math.atan2(-h,c),this._y=Math.atan2(-u,s)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-r(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(p,c),this._y=Math.atan2(a,s)):(this._x=Math.atan2(-h,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!1!==n&&this._onChangeCallback(),this}setFromQuaternion(t,e,n){return Cr.makeRotationFromQuaternion(t),this.setFromRotationMatrix(Cr,e,n)}setFromVector3(t,e){return this.set(t.x,t.y,t.z,e||this._order)}reorder(t){return Pr.setFromEuler(this),this.setFromQuaternion(Pr,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t}toVector3(t){return t?t.set(this._x,this._y,this._z):new Yn(this._x,this._y,this._z)}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Euler=Dr,Dr.prototype.isEuler=!0,Dr.DefaultOrder="XYZ",Dr.RotationOrders=["XYZ","YZX","ZXY","XZY","YXZ","ZYX"];class Ir{constructor(){this.mask=1}set(t){this.mask=1<<t|0}enable(t){this.mask|=1<<t|0}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t|0}disable(t){this.mask&=~(1<<t|0)}disableAll(){this.mask=0}test(t){return 0!=(this.mask&t.mask)}}exports.Layers=Ir;let Br=0;const Nr=new Yn,Fr=new Xn,Or=new wr,zr=new Yn,Gr=new Yn,Hr=new Yn,Ur=new Xn,kr=new Yn(1,0,0),Vr=new Yn(0,1,0),Wr=new Yn(0,0,1),jr={type:"added"},qr={type:"removed"};function Xr(){Object.defineProperty(this,"id",{value:Br++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Xr.DefaultUp.clone();const t=new Yn,e=new Dr,n=new Xn,r=new Yn(1,1,1);e._onChange(function(){n.setFromEuler(e,!1)}),n._onChange(function(){e.setFromQuaternion(n,void 0,!1)}),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:n},scale:{configurable:!0,enumerable:!0,value:r},modelViewMatrix:{value:new wr},normalMatrix:{value:new zn}}),this.matrix=new wr,this.matrixWorld=new wr,this.matrixAutoUpdate=Xr.DefaultMatrixAutoUpdate,this.matrixWorldNeedsUpdate=!1,this.layers=new Ir,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}Xr.DefaultUp=new Yn(0,1,0),Xr.DefaultMatrixAutoUpdate=!0,Xr.prototype=Object.assign(Object.create(In.prototype),{constructor:Xr,isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix4:function(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(t){return this.quaternion.premultiply(t),this},setRotationFromAxisAngle:function(t,e){this.quaternion.setFromAxisAngle(t,e)},setRotationFromEuler:function(t){this.quaternion.setFromEuler(t,!0)},setRotationFromMatrix:function(t){this.quaternion.setFromRotationMatrix(t)},setRotationFromQuaternion:function(t){this.quaternion.copy(t)},rotateOnAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.multiply(Fr),this},rotateOnWorldAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.premultiply(Fr),this},rotateX:function(t){return this.rotateOnAxis(kr,t)},rotateY:function(t){return this.rotateOnAxis(Vr,t)},rotateZ:function(t){return this.rotateOnAxis(Wr,t)},translateOnAxis:function(t,e){return Nr.copy(t).applyQuaternion(this.quaternion),this.position.add(Nr.multiplyScalar(e)),this},translateX:function(t){return this.translateOnAxis(kr,t)},translateY:function(t){return this.translateOnAxis(Vr,t)},translateZ:function(t){return this.translateOnAxis(Wr,t)},localToWorld:function(t){return t.applyMatrix4(this.matrixWorld)},worldToLocal:function(t){return t.applyMatrix4(Or.copy(this.matrixWorld).invert())},lookAt:function(t,e,n){t.isVector3?zr.copy(t):zr.set(t,e,n);const r=this.parent;this.updateWorldMatrix(!0,!1),Gr.setFromMatrixPosition(this.matrixWorld),this.isCamera||this.isLight?Or.lookAt(Gr,zr,this.up):Or.lookAt(zr,Gr,this.up),this.quaternion.setFromRotationMatrix(Or),r&&(Or.extractRotation(r.matrixWorld),Fr.setFromRotationMatrix(Or),this.quaternion.premultiply(Fr.invert()))},add:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.add(arguments[t]);return this}return t===this?(console.error("THREE.Object3D.add: object can't be added as a child of itself.",t),this):(t&&t.isObject3D?(null!==t.parent&&t.parent.remove(t),t.parent=this,this.children.push(t),t.dispatchEvent(jr)):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t),this)},remove:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.remove(arguments[t]);return this}const e=this.children.indexOf(t);return-1!==e&&(t.parent=null,this.children.splice(e,1),t.dispatchEvent(qr)),this},clear:function(){for(let t=0;t<this.children.length;t++){const e=this.children[t];e.parent=null,e.dispatchEvent(qr)}return this.children.length=0,this},attach:function(t){return this.updateWorldMatrix(!0,!1),Or.copy(this.matrixWorld).invert(),null!==t.parent&&(t.parent.updateWorldMatrix(!0,!1),Or.multiply(t.parent.matrixWorld)),t.applyMatrix4(Or),this.add(t),t.updateWorldMatrix(!1,!0),this},getObjectById:function(t){return this.getObjectByProperty("id",t)},getObjectByName:function(t){return this.getObjectByProperty("name",t)},getObjectByProperty:function(t,e){if(this[t]===e)return this;for(let n=0,r=this.children.length;n<r;n++){const r=this.children[n].getObjectByProperty(t,e);if(void 0!==r)return r}},getWorldPosition:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldPosition() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),t.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldQuaternion() target is now required"),t=new Xn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,t,Hr),t},getWorldScale:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldScale() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,Ur,t),t},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Object3D: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(e[8],e[9],e[10]).normalize()},raycast:function(){},traverse:function(t){t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverse(t)},traverseVisible:function(t){if(!1===this.visible)return;t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverseVisible(t)},traverseAncestors:function(t){const e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))},updateMatrix:function(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,t=!0);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].updateMatrixWorld(t)},updateWorldMatrix:function(t,e){const n=this.parent;if(!0===t&&null!==n&&n.updateWorldMatrix(!0,!1),this.matrixAutoUpdate&&this.updateMatrix(),null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),!0===e){const t=this.children;for(let e=0,n=t.length;e<n;e++)t[e].updateWorldMatrix(!1,!0)}},toJSON:function(t){const e=void 0===t||"string"==typeof t,n={};e&&(t={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{}},n.metadata={version:4.5,type:"Object",generator:"Object3D.toJSON"});const r={};function i(e,n){return void 0===e[n.uuid]&&(e[n.uuid]=n.toJSON(t)),n.uuid}if(r.uuid=this.uuid,r.type=this.type,""!==this.name&&(r.name=this.name),!0===this.castShadow&&(r.castShadow=!0),!0===this.receiveShadow&&(r.receiveShadow=!0),!1===this.visible&&(r.visible=!1),!1===this.frustumCulled&&(r.frustumCulled=!1),0!==this.renderOrder&&(r.renderOrder=this.renderOrder),"{}"!==JSON.stringify(this.userData)&&(r.userData=this.userData),r.layers=this.layers.mask,r.matrix=this.matrix.toArray(),!1===this.matrixAutoUpdate&&(r.matrixAutoUpdate=!1),this.isInstancedMesh&&(r.type="InstancedMesh",r.count=this.count,r.instanceMatrix=this.instanceMatrix.toJSON()),this.isMesh||this.isLine||this.isPoints){r.geometry=i(t.geometries,this.geometry);const e=this.geometry.parameters;if(void 0!==e&&void 0!==e.shapes){const n=e.shapes;if(Array.isArray(n))for(let e=0,r=n.length;e<r;e++){const r=n[e];i(t.shapes,r)}else i(t.shapes,n)}}if(this.isSkinnedMesh&&(r.bindMode=this.bindMode,r.bindMatrix=this.bindMatrix.toArray(),void 0!==this.skeleton&&(i(t.skeletons,this.skeleton),r.skeleton=this.skeleton.uuid)),void 0!==this.material)if(Array.isArray(this.material)){const e=[];for(let n=0,r=this.material.length;n<r;n++)e.push(i(t.materials,this.material[n]));r.material=e}else r.material=i(t.materials,this.material);if(this.children.length>0){r.children=[];for(let e=0;e<this.children.length;e++)r.children.push(this.children[e].toJSON(t).object)}if(this.animations.length>0){r.animations=[];for(let e=0;e<this.animations.length;e++){const n=this.animations[e];r.animations.push(i(t.animations,n))}}if(e){const e=s(t.geometries),r=s(t.materials),i=s(t.textures),o=s(t.images),a=s(t.shapes),l=s(t.skeletons),c=s(t.animations);e.length>0&&(n.geometries=e),r.length>0&&(n.materials=r),i.length>0&&(n.textures=i),o.length>0&&(n.images=o),a.length>0&&(n.shapes=a),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c)}return n.object=r,n;function s(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}},clone:function(t){return(new this.constructor).copy(this,t)},copy:function(t,e=!0){if(this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.rotation.order=t.rotation.order,this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(let n=0;n<t.children.length;n++){const e=t.children[n];this.add(e.clone())}return this}});const Yr=new Yn,Zr=new Yn,Jr=new zn;class Qr{constructor(t=new Yn(1,0,0),e=0){this.normal=t,this.constant=e}set(t,e){return this.normal.copy(t),this.constant=e,this}setComponents(t,e,n,r){return this.normal.set(t,e,n),this.constant=r,this}setFromNormalAndCoplanarPoint(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this}setFromCoplanarPoints(t,e,n){const r=Yr.subVectors(n,e).cross(Zr.subVectors(t,e)).normalize();return this.setFromNormalAndCoplanarPoint(r,t),this}copy(t){return this.normal.copy(t.normal),this.constant=t.constant,this}normalize(){const t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(t){return this.normal.dot(t)+this.constant}distanceToSphere(t){return this.distanceToPoint(t.center)-t.radius}projectPoint(t,e){return void 0===e&&(console.warn("THREE.Plane: .projectPoint() target is now required"),e=new Yn),e.copy(this.normal).multiplyScalar(-this.distanceToPoint(t)).add(t)}intersectLine(t,e){void 0===e&&(console.warn("THREE.Plane: .intersectLine() target is now required"),e=new Yn);const n=t.delta(Yr),r=this.normal.dot(n);if(0===r)return 0===this.distanceToPoint(t.start)?e.copy(t.start):void 0;const i=-(t.start.dot(this.normal)+this.constant)/r;return i<0||i>1?void 0:e.copy(n).multiplyScalar(i).add(t.start)}intersectsLine(t){const e=this.distanceToPoint(t.start),n=this.distanceToPoint(t.end);return e<0&&n>0||n<0&&e>0}intersectsBox(t){return t.intersectsPlane(this)}intersectsSphere(t){return t.intersectsPlane(this)}coplanarPoint(t){return void 0===t&&(console.warn("THREE.Plane: .coplanarPoint() target is now required"),t=new Yn),t.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(t,e){const n=e||Jr.getNormalMatrix(t),r=this.coplanarPoint(Yr).applyMatrix4(t),i=this.normal.applyMatrix3(n).normalize();return this.constant=-r.dot(i),this}translate(t){return this.constant-=t.dot(this.normal),this}equals(t){return t.normal.equals(this.normal)&&t.constant===this.constant}clone(){return(new this.constructor).copy(this)}}exports.Plane=Qr,Qr.prototype.isPlane=!0;const Kr=new Yn,$r=new Yn,ti=new Yn,ei=new Yn,ni=new Yn,ri=new Yn,ii=new Yn,si=new Yn,oi=new Yn,ai=new Yn;class li{constructor(t=new Yn,e=new Yn,n=new Yn){this.a=t,this.b=e,this.c=n}static getNormal(t,e,n,r){void 0===r&&(console.warn("THREE.Triangle: .getNormal() target is now required"),r=new Yn),r.subVectors(n,e),Kr.subVectors(t,e),r.cross(Kr);const i=r.lengthSq();return i>0?r.multiplyScalar(1/Math.sqrt(i)):r.set(0,0,0)}static getBarycoord(t,e,n,r,i){Kr.subVectors(r,e),$r.subVectors(n,e),ti.subVectors(t,e);const s=Kr.dot(Kr),o=Kr.dot($r),a=Kr.dot(ti),l=$r.dot($r),c=$r.dot(ti),h=s*l-o*o;if(void 0===i&&(console.warn("THREE.Triangle: .getBarycoord() target is now required"),i=new Yn),0===h)return i.set(-2,-1,-1);const u=1/h,p=(l*a-o*c)*u,d=(s*c-o*a)*u;return i.set(1-p-d,d,p)}static containsPoint(t,e,n,r){return this.getBarycoord(t,e,n,r,ei),ei.x>=0&&ei.y>=0&&ei.x+ei.y<=1}static getUV(t,e,n,r,i,s,o,a){return this.getBarycoord(t,e,n,r,ei),a.set(0,0),a.addScaledVector(i,ei.x),a.addScaledVector(s,ei.y),a.addScaledVector(o,ei.z),a}static isFrontFacing(t,e,n,r){return Kr.subVectors(n,e),$r.subVectors(t,e),Kr.cross($r).dot(r)<0}set(t,e,n){return this.a.copy(t),this.b.copy(e),this.c.copy(n),this}setFromPointsAndIndices(t,e,n,r){return this.a.copy(t[e]),this.b.copy(t[n]),this.c.copy(t[r]),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this}getArea(){return Kr.subVectors(this.c,this.b),$r.subVectors(this.a,this.b),.5*Kr.cross($r).length()}getMidpoint(t){return void 0===t&&(console.warn("THREE.Triangle: .getMidpoint() target is now required"),t=new Yn),t.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(t){return li.getNormal(this.a,this.b,this.c,t)}getPlane(t){return void 0===t&&(console.warn("THREE.Triangle: .getPlane() target is now required"),t=new Qr),t.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(t,e){return li.getBarycoord(t,this.a,this.b,this.c,e)}getUV(t,e,n,r,i){return li.getUV(t,this.a,this.b,this.c,e,n,r,i)}containsPoint(t){return li.containsPoint(t,this.a,this.b,this.c)}isFrontFacing(t){return li.isFrontFacing(this.a,this.b,this.c,t)}intersectsBox(t){return t.intersectsTriangle(this)}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Triangle: .closestPointToPoint() target is now required"),e=new Yn);const n=this.a,r=this.b,i=this.c;let s,o;ni.subVectors(r,n),ri.subVectors(i,n),si.subVectors(t,n);const a=ni.dot(si),l=ri.dot(si);if(a<=0&&l<=0)return e.copy(n);oi.subVectors(t,r);const c=ni.dot(oi),h=ri.dot(oi);if(c>=0&&h<=c)return e.copy(r);const u=a*h-c*l;if(u<=0&&a>=0&&c<=0)return s=a/(a-c),e.copy(n).addScaledVector(ni,s);ai.subVectors(t,i);const p=ni.dot(ai),d=ri.dot(ai);if(d>=0&&p<=d)return e.copy(i);const m=p*l-a*d;if(m<=0&&l>=0&&d<=0)return o=l/(l-d),e.copy(n).addScaledVector(ri,o);const f=c*d-p*h;if(f<=0&&h-c>=0&&p-d>=0)return ii.subVectors(i,r),o=(h-c)/(h-c+(p-d)),e.copy(r).addScaledVector(ii,o);const g=1/(f+m+u);return s=m*g,o=u*g,e.copy(n).addScaledVector(ni,s).addScaledVector(ri,o)}equals(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}exports.Triangle=li;let ci=0;function hi(){Object.defineProperty(this,"id",{value:ci++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Material",this.fog=!0,this.blending=x,this.side=u,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.blendSrc=P,this.blendDst=D,this.blendEquation=w,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=U,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=bn,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=an,this.stencilZFail=an,this.stencilZPass=an,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaTest=0,this.premultipliedAlpha=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0}hi.prototype=Object.assign(Object.create(In.prototype),{constructor:hi,isMaterial:!0,onBeforeCompile:function(){},customProgramCacheKey:function(){return this.onBeforeCompile.toString()},setValues:function(t){if(void 0!==t)for(const e in t){const n=t[e];if(void 0===n){console.warn("THREE.Material: '"+e+"' parameter is undefined.");continue}if("shading"===e){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===n;continue}const r=this[e];void 0!==r?r&&r.isColor?r.set(n):r&&r.isVector3&&n&&n.isVector3?r.copy(n):this[e]=n:console.warn("THREE."+this.type+": '"+e+"' is not a property of this material.")}},toJSON:function(t){const e=void 0===t||"string"==typeof t;e&&(t={textures:{},images:{}});const n={metadata:{version:4.5,type:"Material",generator:"Material.toJSON"}};function r(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),this.sheen&&this.sheen.isColor&&(n.sheen=this.sheen.getHex()),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(t).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(t).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(t).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(t).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(t).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(t).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(t).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(t).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(t).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(t).uuid,n.reflectivity=this.reflectivity,n.refractionRatio=this.refractionRatio,void 0!==this.combine&&(n.combine=this.combine),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity)),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.size&&(n.size=this.size),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),this.blending!==x&&(n.blending=this.blending),this.side!==u&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.morphTargets&&(n.morphTargets=!0),!0===this.morphNormals&&(n.morphNormals=!0),!0===this.skinning&&(n.skinning=!0),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),"{}"!==JSON.stringify(this.userData)&&(n.userData=this.userData),e){const e=r(t.textures),i=r(t.images);e.length>0&&(n.textures=e),i.length>0&&(n.images=i)}return n},clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.name=t.name,this.fog=t.fog,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;const e=t.clippingPlanes;let n=null;if(null!==e){const t=e.length;n=new Array(t);for(let r=0;r!==t;++r)n[r]=e[r].clone()}return this.clippingPlanes=n,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.premultipliedAlpha=t.premultipliedAlpha,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this},dispose:function(){this.dispatchEvent({type:"dispose"})}}),Object.defineProperty(hi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}});const ui={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},pi={h:0,s:0,l:0},di={h:0,s:0,l:0};function mi(t,e,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?t+6*(e-t)*n:n<.5?e:n<2/3?t+6*(e-t)*(2/3-n):t}function fi(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}function gi(t){return t<.0031308?12.92*t:1.055*Math.pow(t,.41666)-.055}class xi{constructor(t,e,n){return void 0===e&&void 0===n?this.set(t):this.setRGB(t,e,n)}set(t){return t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t),this}setScalar(t){return this.r=t,this.g=t,this.b=t,this}setHex(t){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,this}setRGB(t,e,n){return this.r=t,this.g=e,this.b=n,this}setHSL(t,e,n){if(t=Fn.euclideanModulo(t,1),e=Fn.clamp(e,0,1),n=Fn.clamp(n,0,1),0===e)this.r=this.g=this.b=n;else{const r=n<=.5?n*(1+e):n+e-n*e,i=2*n-r;this.r=mi(i,r,t+1/3),this.g=mi(i,r,t),this.b=mi(i,r,t-1/3)}return this}setStyle(t){function e(e){void 0!==e&&parseFloat(e)<1&&console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")}let n;if(n=/^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(t)){let t;const r=n[1],i=n[2];switch(r){case"rgb":case"rgba":if(t=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(255,parseInt(t[1],10))/255,this.g=Math.min(255,parseInt(t[2],10))/255,this.b=Math.min(255,parseInt(t[3],10))/255,e(t[4]),this;if(t=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(100,parseInt(t[1],10))/100,this.g=Math.min(100,parseInt(t[2],10))/100,this.b=Math.min(100,parseInt(t[3],10))/100,e(t[4]),this;break;case"hsl":case"hsla":if(t=/^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i)){const n=parseFloat(t[1])/360,r=parseInt(t[2],10)/100,i=parseInt(t[3],10)/100;return e(t[4]),this.setHSL(n,r,i)}}}else if(n=/^\#([A-Fa-f\d]+)$/.exec(t)){const t=n[1],e=t.length;if(3===e)return this.r=parseInt(t.charAt(0)+t.charAt(0),16)/255,this.g=parseInt(t.charAt(1)+t.charAt(1),16)/255,this.b=parseInt(t.charAt(2)+t.charAt(2),16)/255,this;if(6===e)return this.r=parseInt(t.charAt(0)+t.charAt(1),16)/255,this.g=parseInt(t.charAt(2)+t.charAt(3),16)/255,this.b=parseInt(t.charAt(4)+t.charAt(5),16)/255,this}return t&&t.length>0?this.setColorName(t):this}setColorName(t){const e=ui[t];return void 0!==e?this.setHex(e):console.warn("THREE.Color: Unknown color "+t),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(t){return this.r=t.r,this.g=t.g,this.b=t.b,this}copyGammaToLinear(t,e=2){return this.r=Math.pow(t.r,e),this.g=Math.pow(t.g,e),this.b=Math.pow(t.b,e),this}copyLinearToGamma(t,e=2){const n=e>0?1/e:1;return this.r=Math.pow(t.r,n),this.g=Math.pow(t.g,n),this.b=Math.pow(t.b,n),this}convertGammaToLinear(t){return this.copyGammaToLinear(this,t),this}convertLinearToGamma(t){return this.copyLinearToGamma(this,t),this}copySRGBToLinear(t){return this.r=fi(t.r),this.g=fi(t.g),this.b=fi(t.b),this}copyLinearToSRGB(t){return this.r=gi(t.r),this.g=gi(t.g),this.b=gi(t.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(){return 255*this.r<<16^255*this.g<<8^255*this.b<<0}getHexString(){return("000000"+this.getHex().toString(16)).slice(-6)}getHSL(t){void 0===t&&(console.warn("THREE.Color: .getHSL() target is now required"),t={h:0,s:0,l:0});const e=this.r,n=this.g,r=this.b,i=Math.max(e,n,r),s=Math.min(e,n,r);let o,a;const l=(s+i)/2;if(s===i)o=0,a=0;else{const t=i-s;switch(a=l<=.5?t/(i+s):t/(2-i-s),i){case e:o=(n-r)/t+(n<r?6:0);break;case n:o=(r-e)/t+2;break;case r:o=(e-n)/t+4}o/=6}return t.h=o,t.s=a,t.l=l,t}getStyle(){return"rgb("+(255*this.r|0)+","+(255*this.g|0)+","+(255*this.b|0)+")"}offsetHSL(t,e,n){return this.getHSL(pi),pi.h+=t,pi.s+=e,pi.l+=n,this.setHSL(pi.h,pi.s,pi.l),this}add(t){return this.r+=t.r,this.g+=t.g,this.b+=t.b,this}addColors(t,e){return this.r=t.r+e.r,this.g=t.g+e.g,this.b=t.b+e.b,this}addScalar(t){return this.r+=t,this.g+=t,this.b+=t,this}sub(t){return this.r=Math.max(0,this.r-t.r),this.g=Math.max(0,this.g-t.g),this.b=Math.max(0,this.b-t.b),this}multiply(t){return this.r*=t.r,this.g*=t.g,this.b*=t.b,this}multiplyScalar(t){return this.r*=t,this.g*=t,this.b*=t,this}lerp(t,e){return this.r+=(t.r-this.r)*e,this.g+=(t.g-this.g)*e,this.b+=(t.b-this.b)*e,this}lerpColors(t,e,n){return this.r=t.r+(e.r-t.r)*n,this.g=t.g+(e.g-t.g)*n,this.b=t.b+(e.b-t.b)*n,this}lerpHSL(t,e){this.getHSL(pi),t.getHSL(di);const n=Fn.lerp(pi.h,di.h,e),r=Fn.lerp(pi.s,di.s,e),i=Fn.lerp(pi.l,di.l,e);return this.setHSL(n,r,i),this}equals(t){return t.r===this.r&&t.g===this.g&&t.b===this.b}fromArray(t,e=0){return this.r=t[e],this.g=t[e+1],this.b=t[e+2],this}toArray(t=[],e=0){return t[e]=this.r,t[e+1]=this.g,t[e+2]=this.b,t}fromBufferAttribute(t,e){return this.r=t.getX(e),this.g=t.getY(e),this.b=t.getZ(e),!0===t.normalized&&(this.r/=255,this.g/=255,this.b/=255),this}toJSON(){return this.getHex()}}exports.Color=xi,xi.NAMES=ui,xi.prototype.isColor=!0,xi.prototype.r=1,xi.prototype.g=1,xi.prototype.b=1;class vi extends hi{constructor(t){super(),this.type="MeshBasicMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this}}exports.MeshBasicMaterial=vi,vi.prototype.isMeshBasicMaterial=!0;const yi=new Yn,_i=new On;function bi(t,e,n){if(Array.isArray(t))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.name="",this.array=t,this.itemSize=e,this.count=void 0!==t?t.length/e:0,this.normalized=!0===n,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0}function wi(t,e,n){bi.call(this,new Int8Array(t),e,n)}function Mi(t,e,n){bi.call(this,new Uint8Array(t),e,n)}function Si(t,e,n){bi.call(this,new Uint8ClampedArray(t),e,n)}function Ti(t,e,n){bi.call(this,new Int16Array(t),e,n)}function Ei(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ai(t,e,n){bi.call(this,new Int32Array(t),e,n)}function Li(t,e,n){bi.call(this,new Uint32Array(t),e,n)}function Ri(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ci(t,e,n){bi.call(this,new Float32Array(t),e,n)}function Pi(t,e,n){bi.call(this,new Float64Array(t),e,n)}function Di(t){if(0===t.length)return-1/0;let e=t[0];for(let n=1,r=t.length;n<r;++n)t[n]>e&&(e=t[n]);return e}Object.defineProperty(bi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(bi.prototype,{isBufferAttribute:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.itemSize,n*=e.itemSize;for(let r=0,i=this.itemSize;r<i;r++)this.array[t+r]=e.array[n+r];return this},copyArray:function(t){return this.array.set(t),this},copyColorsArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",r),i=new xi),e[n++]=i.r,e[n++]=i.g,e[n++]=i.b}return this},copyVector2sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",r),i=new On),e[n++]=i.x,e[n++]=i.y}return this},copyVector3sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",r),i=new Yn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z}return this},copyVector4sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",r),i=new Wn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z,e[n++]=i.w}return this},applyMatrix3:function(t){if(2===this.itemSize)for(let e=0,n=this.count;e<n;e++)_i.fromBufferAttribute(this,e),_i.applyMatrix3(t),this.setXY(e,_i.x,_i.y);else if(3===this.itemSize)for(let e=0,n=this.count;e<n;e++)yi.fromBufferAttribute(this,e),yi.applyMatrix3(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyMatrix4:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyMatrix4(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyNormalMatrix:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyNormalMatrix(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},transformDirection:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.transformDirection(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},set:function(t,e=0){return this.array.set(t,e),this},getX:function(t){return this.array[t*this.itemSize]},setX:function(t,e){return this.array[t*this.itemSize]=e,this},getY:function(t){return this.array[t*this.itemSize+1]},setY:function(t,e){return this.array[t*this.itemSize+1]=e,this},getZ:function(t){return this.array[t*this.itemSize+2]},setZ:function(t,e){return this.array[t*this.itemSize+2]=e,this},getW:function(t){return this.array[t*this.itemSize+3]},setW:function(t,e){return this.array[t*this.itemSize+3]=e,this},setXY:function(t,e,n){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this.array[t+3]=i,this},onUpload:function(t){return this.onUploadCallback=t,this},clone:function(){return new this.constructor(this.array,this.itemSize).copy(this)},toJSON:function(){return{itemSize:this.itemSize,type:this.array.constructor.name,array:Array.prototype.slice.call(this.array),normalized:this.normalized}}}),wi.prototype=Object.create(bi.prototype),wi.prototype.constructor=wi,Mi.prototype=Object.create(bi.prototype),Mi.prototype.constructor=Mi,Si.prototype=Object.create(bi.prototype),Si.prototype.constructor=Si,Ti.prototype=Object.create(bi.prototype),Ti.prototype.constructor=Ti,Ei.prototype=Object.create(bi.prototype),Ei.prototype.constructor=Ei,Ai.prototype=Object.create(bi.prototype),Ai.prototype.constructor=Ai,Li.prototype=Object.create(bi.prototype),Li.prototype.constructor=Li,Ri.prototype=Object.create(bi.prototype),Ri.prototype.constructor=Ri,Ri.prototype.isFloat16BufferAttribute=!0,Ci.prototype=Object.create(bi.prototype),Ci.prototype.constructor=Ci,Pi.prototype=Object.create(bi.prototype),Pi.prototype.constructor=Pi;const Ii={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:Uint8ClampedArray,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};function Bi(t,e){return new Ii[t](e)}let Ni=0;const Fi=new wr,Oi=new Xr,zi=new Yn,Gi=new Qn,Hi=new Qn,Ui=new Yn;function ki(){Object.defineProperty(this,"id",{value:Ni++}),this.uuid=Fn.generateUUID(),this.name="",this.type="BufferGeometry",this.index=null,this.attributes={},this.morphAttributes={},this.morphTargetsRelative=!1,this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.drawRange={start:0,count:1/0},this.userData={}}ki.prototype=Object.assign(Object.create(In.prototype),{constructor:ki,isBufferGeometry:!0,getIndex:function(){return this.index},setIndex:function(t){return Array.isArray(t)?this.index=new(Di(t)>65535?Li:Ei)(t,1):this.index=t,this},getAttribute:function(t){return this.attributes[t]},setAttribute:function(t,e){return this.attributes[t]=e,this},deleteAttribute:function(t){return delete this.attributes[t],this},hasAttribute:function(t){return void 0!==this.attributes[t]},addGroup:function(t,e,n=0){this.groups.push({start:t,count:e,materialIndex:n})},clearGroups:function(){this.groups=[]},setDrawRange:function(t,e){this.drawRange.start=t,this.drawRange.count=e},applyMatrix4:function(t){const e=this.attributes.position;void 0!==e&&(e.applyMatrix4(t),e.needsUpdate=!0);const n=this.attributes.normal;if(void 0!==n){const e=(new zn).getNormalMatrix(t);n.applyNormalMatrix(e),n.needsUpdate=!0}const r=this.attributes.tangent;return void 0!==r&&(r.transformDirection(t),r.needsUpdate=!0),null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this},rotateX:function(t){return Fi.makeRotationX(t),this.applyMatrix4(Fi),this},rotateY:function(t){return Fi.makeRotationY(t),this.applyMatrix4(Fi),this},rotateZ:function(t){return Fi.makeRotationZ(t),this.applyMatrix4(Fi),this},translate:function(t,e,n){return Fi.makeTranslation(t,e,n),this.applyMatrix4(Fi),this},scale:function(t,e,n){return Fi.makeScale(t,e,n),this.applyMatrix4(Fi),this},lookAt:function(t){return Oi.lookAt(t),Oi.updateMatrix(),this.applyMatrix4(Oi.matrix),this},center:function(){return this.computeBoundingBox(),this.boundingBox.getCenter(zi).negate(),this.translate(zi.x,zi.y,zi.z),this},setFromPoints:function(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n];e.push(r.x,r.y,r.z||0)}return this.setAttribute("position",new Ci(e,3)),this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new Qn);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingBox.set(new Yn(-1/0,-1/0,-1/0),new Yn(1/0,1/0,1/0));if(void 0!==t){if(this.boundingBox.setFromBufferAttribute(t),e)for(let n=0,r=e.length;n<r;n++){const t=e[n];Gi.setFromBufferAttribute(t),this.morphTargetsRelative?(Ui.addVectors(this.boundingBox.min,Gi.min),this.boundingBox.expandByPoint(Ui),Ui.addVectors(this.boundingBox.max,Gi.max),this.boundingBox.expandByPoint(Ui)):(this.boundingBox.expandByPoint(Gi.min),this.boundingBox.expandByPoint(Gi.max))}}else this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new dr);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingSphere.set(new Yn,1/0);if(t){const n=this.boundingSphere.center;if(Gi.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const n=e[t];Hi.setFromBufferAttribute(n),this.morphTargetsRelative?(Ui.addVectors(Gi.min,Hi.min),Gi.expandByPoint(Ui),Ui.addVectors(Gi.max,Hi.max),Gi.expandByPoint(Ui)):(Gi.expandByPoint(Hi.min),Gi.expandByPoint(Hi.max))}Gi.getCenter(n);let r=0;for(let e=0,i=t.count;e<i;e++)Ui.fromBufferAttribute(t,e),r=Math.max(r,n.distanceToSquared(Ui));if(e)for(let i=0,s=e.length;i<s;i++){const s=e[i],o=this.morphTargetsRelative;for(let e=0,i=s.count;e<i;e++)Ui.fromBufferAttribute(s,e),o&&(zi.fromBufferAttribute(t,e),Ui.add(zi)),r=Math.max(r,n.distanceToSquared(Ui))}this.boundingSphere.radius=Math.sqrt(r),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}},computeFaceNormals:function(){},computeTangents:function(){const t=this.index,e=this.attributes;if(null===t||void 0===e.position||void 0===e.normal||void 0===e.uv)return void console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");const n=t.array,r=e.position.array,i=e.normal.array,s=e.uv.array,o=r.length/3;void 0===e.tangent&&this.setAttribute("tangent",new bi(new Float32Array(4*o),4));const a=e.tangent.array,l=[],c=[];for(let T=0;T<o;T++)l[T]=new Yn,c[T]=new Yn;const h=new Yn,u=new Yn,p=new Yn,d=new On,m=new On,f=new On,g=new Yn,x=new Yn;function v(t,e,n){h.fromArray(r,3*t),u.fromArray(r,3*e),p.fromArray(r,3*n),d.fromArray(s,2*t),m.fromArray(s,2*e),f.fromArray(s,2*n),u.sub(h),p.sub(h),m.sub(d),f.sub(d);const i=1/(m.x*f.y-f.x*m.y);isFinite(i)&&(g.copy(u).multiplyScalar(f.y).addScaledVector(p,-m.y).multiplyScalar(i),x.copy(p).multiplyScalar(m.x).addScaledVector(u,-f.x).multiplyScalar(i),l[t].add(g),l[e].add(g),l[n].add(g),c[t].add(x),c[e].add(x),c[n].add(x))}let y=this.groups;0===y.length&&(y=[{start:0,count:n.length}]);for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)v(n[r+0],n[r+1],n[r+2])}const _=new Yn,b=new Yn,w=new Yn,M=new Yn;function S(t){w.fromArray(i,3*t),M.copy(w);const e=l[t];_.copy(e),_.sub(w.multiplyScalar(w.dot(e))).normalize(),b.crossVectors(M,e);const n=b.dot(c[t])<0?-1:1;a[4*t]=_.x,a[4*t+1]=_.y,a[4*t+2]=_.z,a[4*t+3]=n}for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)S(n[r+0]),S(n[r+1]),S(n[r+2])}},computeVertexNormals:function(){const t=this.index,e=this.getAttribute("position");if(void 0!==e){let n=this.getAttribute("normal");if(void 0===n)n=new bi(new Float32Array(3*e.count),3),this.setAttribute("normal",n);else for(let t=0,e=n.count;t<e;t++)n.setXYZ(t,0,0,0);const r=new Yn,i=new Yn,s=new Yn,o=new Yn,a=new Yn,l=new Yn,c=new Yn,h=new Yn;if(t)for(let u=0,p=t.count;u<p;u+=3){const p=t.getX(u+0),d=t.getX(u+1),m=t.getX(u+2);r.fromBufferAttribute(e,p),i.fromBufferAttribute(e,d),s.fromBufferAttribute(e,m),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),o.fromBufferAttribute(n,p),a.fromBufferAttribute(n,d),l.fromBufferAttribute(n,m),o.add(c),a.add(c),l.add(c),n.setXYZ(p,o.x,o.y,o.z),n.setXYZ(d,a.x,a.y,a.z),n.setXYZ(m,l.x,l.y,l.z)}else for(let t=0,u=e.count;t<u;t+=3)r.fromBufferAttribute(e,t+0),i.fromBufferAttribute(e,t+1),s.fromBufferAttribute(e,t+2),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),n.setXYZ(t+0,c.x,c.y,c.z),n.setXYZ(t+1,c.x,c.y,c.z),n.setXYZ(t+2,c.x,c.y,c.z);this.normalizeNormals(),n.needsUpdate=!0}},merge:function(t,e){if(!t||!t.isBufferGeometry)return void console.error("THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.",t);void 0===e&&(e=0,console.warn("THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge."));const n=this.attributes;for(const r in n){if(void 0===t.attributes[r])continue;const i=n[r].array,s=t.attributes[r],o=s.array,a=s.itemSize*e,l=Math.min(o.length,i.length-a);for(let t=0,e=a;t<l;t++,e++)i[e]=o[t]}return this},normalizeNormals:function(){const t=this.attributes.normal;for(let e=0,n=t.count;e<n;e++)Ui.fromBufferAttribute(t,e),Ui.normalize(),t.setXYZ(e,Ui.x,Ui.y,Ui.z)},toNonIndexed:function(){function t(t,e){const n=t.array,r=t.itemSize,i=t.normalized,s=new n.constructor(e.length*r);let o=0,a=0;for(let l=0,c=e.length;l<c;l++){o=e[l]*r;for(let t=0;t<r;t++)s[a++]=n[o++]}return new bi(s,r,i)}if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed."),this;const e=new ki,n=this.index.array,r=this.attributes;for(const o in r){const i=t(r[o],n);e.setAttribute(o,i)}const i=this.morphAttributes;for(const o in i){const r=[],s=i[o];for(let e=0,i=s.length;e<i;e++){const i=t(s[e],n);r.push(i)}e.morphAttributes[o]=r}e.morphTargetsRelative=this.morphTargetsRelative;const s=this.groups;for(let o=0,a=s.length;o<a;o++){const t=s[o];e.addGroup(t.start,t.count,t.materialIndex)}return e},toJSON:function(){const t={metadata:{version:4.5,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};if(t.uuid=this.uuid,t.type=this.type,""!==this.name&&(t.name=this.name),Object.keys(this.userData).length>0&&(t.userData=this.userData),void 0!==this.parameters){const e=this.parameters;for(const n in e)void 0!==e[n]&&(t[n]=e[n]);return t}t.data={attributes:{}};const e=this.index;null!==e&&(t.data.index={type:e.array.constructor.name,array:Array.prototype.slice.call(e.array)});const n=this.attributes;for(const a in n){const e=n[a],r=e.toJSON(t.data);""!==e.name&&(r.name=e.name),t.data.attributes[a]=r}const r={};let i=!1;for(const a in this.morphAttributes){const e=this.morphAttributes[a],n=[];for(let r=0,i=e.length;r<i;r++){const i=e[r],s=i.toJSON(t.data);""!==i.name&&(s.name=i.name),n.push(s)}n.length>0&&(r[a]=n,i=!0)}i&&(t.data.morphAttributes=r,t.data.morphTargetsRelative=this.morphTargetsRelative);const s=this.groups;s.length>0&&(t.data.groups=JSON.parse(JSON.stringify(s)));const o=this.boundingSphere;return null!==o&&(t.data.boundingSphere={center:o.center.toArray(),radius:o.radius}),t},clone:function(){return(new ki).copy(this)},copy:function(t){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const e={};this.name=t.name;const n=t.index;null!==n&&this.setIndex(n.clone(e));const r=t.attributes;for(const l in r){const t=r[l];this.setAttribute(l,t.clone(e))}const i=t.morphAttributes;for(const l in i){const t=[],n=i[l];for(let r=0,i=n.length;r<i;r++)t.push(n[r].clone(e));this.morphAttributes[l]=t}this.morphTargetsRelative=t.morphTargetsRelative;const s=t.groups;for(let l=0,c=s.length;l<c;l++){const t=s[l];this.addGroup(t.start,t.count,t.materialIndex)}const o=t.boundingBox;null!==o&&(this.boundingBox=o.clone());const a=t.boundingSphere;return null!==a&&(this.boundingSphere=a.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this.userData=t.userData,this},dispose:function(){this.dispatchEvent({type:"dispose"})}});const Vi=new wr,Wi=new br,ji=new dr,qi=new Yn,Xi=new Yn,Yi=new Yn,Zi=new Yn,Ji=new Yn,Qi=new Yn,Ki=new Yn,$i=new Yn,ts=new Yn,es=new On,ns=new On,rs=new On,is=new Yn,ss=new Yn;function os(t=new ki,e=new vi){Xr.call(this),this.type="Mesh",this.geometry=t,this.material=e,this.updateMorphTargets()}function as(t,e,n,r,i,s,o,a){let l;if(null===(l=e.side===p?r.intersectTriangle(o,s,i,!0,a):r.intersectTriangle(i,s,o,e.side!==d,a)))return null;ss.copy(a),ss.applyMatrix4(t.matrixWorld);const c=n.ray.origin.distanceTo(ss);return c<n.near||c>n.far?null:{distance:c,point:ss.clone(),object:t}}function ls(t,e,n,r,i,s,o,a,l,c,h,u){qi.fromBufferAttribute(i,c),Xi.fromBufferAttribute(i,h),Yi.fromBufferAttribute(i,u);const p=t.morphTargetInfluences;if(e.morphTargets&&s&&p){Ki.set(0,0,0),$i.set(0,0,0),ts.set(0,0,0);for(let t=0,e=s.length;t<e;t++){const e=p[t],n=s[t];0!==e&&(Zi.fromBufferAttribute(n,c),Ji.fromBufferAttribute(n,h),Qi.fromBufferAttribute(n,u),o?(Ki.addScaledVector(Zi,e),$i.addScaledVector(Ji,e),ts.addScaledVector(Qi,e)):(Ki.addScaledVector(Zi.sub(qi),e),$i.addScaledVector(Ji.sub(Xi),e),ts.addScaledVector(Qi.sub(Yi),e)))}qi.add(Ki),Xi.add($i),Yi.add(ts)}t.isSkinnedMesh&&e.skinning&&(t.boneTransform(c,qi),t.boneTransform(h,Xi),t.boneTransform(u,Yi));const d=as(t,e,n,r,qi,Xi,Yi,is);if(d){a&&(es.fromBufferAttribute(a,c),ns.fromBufferAttribute(a,h),rs.fromBufferAttribute(a,u),d.uv=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On)),l&&(es.fromBufferAttribute(l,c),ns.fromBufferAttribute(l,h),rs.fromBufferAttribute(l,u),d.uv2=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On));const t={a:c,b:h,c:u,normal:new Yn,materialIndex:0};li.getNormal(qi,Xi,Yi,t.normal),d.face=t}return d}os.prototype=Object.assign(Object.create(Xr.prototype),{constructor:os,isMesh:!0,copy:function(t){return Xr.prototype.copy.call(this,t),void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this.material=t.material,this.geometry=t.geometry,this},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}},raycast:function(t,e){const n=this.geometry,r=this.material,i=this.matrixWorld;if(void 0===r)return;if(null===n.boundingSphere&&n.computeBoundingSphere(),ji.copy(n.boundingSphere),ji.applyMatrix4(i),!1===t.ray.intersectsSphere(ji))return;if(Vi.copy(i).invert(),Wi.copy(t.ray).applyMatrix4(Vi),null!==n.boundingBox&&!1===Wi.intersectsBox(n.boundingBox))return;let s;if(n.isBufferGeometry){const i=n.index,o=n.attributes.position,a=n.morphAttributes.position,l=n.morphTargetsRelative,c=n.attributes.uv,h=n.attributes.uv2,u=n.groups,p=n.drawRange;if(null!==i)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const d=u[n],m=r[d.materialIndex];for(let n=Math.max(d.start,p.start),r=Math.min(d.start+d.count,p.start+p.count);n<r;n+=3){const r=i.getX(n),u=i.getX(n+1),p=i.getX(n+2);(s=ls(this,m,t,Wi,o,a,l,c,h,r,u,p))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=d.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),u=Math.min(i.count,p.start+p.count);n<u;n+=3){const u=i.getX(n),p=i.getX(n+1),d=i.getX(n+2);(s=ls(this,r,t,Wi,o,a,l,c,h,u,p,d))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}else if(void 0!==o)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const i=u[n],d=r[i.materialIndex];for(let n=Math.max(i.start,p.start),r=Math.min(i.start+i.count,p.start+p.count);n<r;n+=3){(s=ls(this,d,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=i.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),i=Math.min(o.count,p.start+p.count);n<i;n+=3){(s=ls(this,r,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}}else n.isGeometry&&console.error("THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}});class cs extends ki{constructor(t=1,e=1,n=1,r=1,i=1,s=1){super(),this.type="BoxGeometry",this.parameters={width:t,height:e,depth:n,widthSegments:r,heightSegments:i,depthSegments:s};const o=this;r=Math.floor(r),i=Math.floor(i),s=Math.floor(s);const a=[],l=[],c=[],h=[];let u=0,p=0;function d(t,e,n,r,i,s,d,m,f,g,x){const v=s/f,y=d/g,_=s/2,b=d/2,w=m/2,M=f+1,S=g+1;let T=0,E=0;const A=new Yn;for(let o=0;o<S;o++){const s=o*y-b;for(let a=0;a<M;a++){const u=a*v-_;A[t]=u*r,A[e]=s*i,A[n]=w,l.push(A.x,A.y,A.z),A[t]=0,A[e]=0,A[n]=m>0?1:-1,c.push(A.x,A.y,A.z),h.push(a/f),h.push(1-o/g),T+=1}}for(let o=0;o<g;o++)for(let t=0;t<f;t++){const e=u+t+M*o,n=u+t+M*(o+1),r=u+(t+1)+M*(o+1),i=u+(t+1)+M*o;a.push(e,n,i),a.push(n,r,i),E+=6}o.addGroup(p,E,x),p+=E,u+=T}d("z","y","x",-1,-1,n,e,t,s,i,0),d("z","y","x",1,-1,n,e,-t,s,i,1),d("x","z","y",1,1,t,n,e,r,s,2),d("x","z","y",1,-1,t,n,-e,r,s,3),d("x","y","z",1,-1,t,e,n,r,i,4),d("x","y","z",-1,-1,t,e,-n,r,i,5),this.setIndex(a),this.setAttribute("position",new Ci(l,3)),this.setAttribute("normal",new Ci(c,3)),this.setAttribute("uv",new Ci(h,2))}}function hs(t){const e={};for(const n in t){e[n]={};for(const r in t[n]){const i=t[n][r];i&&(i.isColor||i.isMatrix3||i.isMatrix4||i.isVector2||i.isVector3||i.isVector4||i.isTexture||i.isQuaternion)?e[n][r]=i.clone():Array.isArray(i)?e[n][r]=i.slice():e[n][r]=i}}return e}function us(t){const e={};for(let n=0;n<t.length;n++){const r=hs(t[n]);for(const t in r)e[t]=r[t]}return e}exports.BoxGeometry=exports.BoxBufferGeometry=cs;const ps={clone:hs,merge:us};exports.UniformsUtils=ps;var ds="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}",ms="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";function fs(t){hi.call(this),this.type="ShaderMaterial",this.defines={},this.uniforms={},this.vertexShader=ds,this.fragmentShader=ms,this.linewidth=1,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.clipping=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.extensions={derivatives:!1,fragDepth:!1,drawBuffers:!1,shaderTextureLOD:!1},this.defaultAttributeValues={color:[1,1,1],uv:[0,0],uv2:[0,0]},this.index0AttributeName=void 0,this.uniformsNeedUpdate=!1,this.glslVersion=null,void 0!==t&&(void 0!==t.attributes&&console.error("THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead."),this.setValues(t))}function gs(){Xr.call(this),this.type="Camera",this.matrixWorldInverse=new wr,this.projectionMatrix=new wr,this.projectionMatrixInverse=new wr}function xs(t=50,e=1,n=.1,r=2e3){gs.call(this),this.type="PerspectiveCamera",this.fov=t,this.zoom=1,this.near=n,this.far=r,this.focus=10,this.aspect=e,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}fs.prototype=Object.create(hi.prototype),fs.prototype.constructor=fs,fs.prototype.isShaderMaterial=!0,fs.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=hs(t.uniforms),this.defines=Object.assign({},t.defines),this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.lights=t.lights,this.clipping=t.clipping,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.extensions=Object.assign({},t.extensions),this.glslVersion=t.glslVersion,this},fs.prototype.toJSON=function(t){const e=hi.prototype.toJSON.call(this,t);e.glslVersion=this.glslVersion,e.uniforms={};for(const r in this.uniforms){const n=this.uniforms[r].value;n&&n.isTexture?e.uniforms[r]={type:"t",value:n.toJSON(t).uuid}:n&&n.isColor?e.uniforms[r]={type:"c",value:n.getHex()}:n&&n.isVector2?e.uniforms[r]={type:"v2",value:n.toArray()}:n&&n.isVector3?e.uniforms[r]={type:"v3",value:n.toArray()}:n&&n.isVector4?e.uniforms[r]={type:"v4",value:n.toArray()}:n&&n.isMatrix3?e.uniforms[r]={type:"m3",value:n.toArray()}:n&&n.isMatrix4?e.uniforms[r]={type:"m4",value:n.toArray()}:e.uniforms[r]={value:n}}Object.keys(this.defines).length>0&&(e.defines=this.defines),e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader;const n={};for(const r in this.extensions)!0===this.extensions[r]&&(n[r]=!0);return Object.keys(n).length>0&&(e.extensions=n),e},gs.prototype=Object.assign(Object.create(Xr.prototype),{constructor:gs,isCamera:!0,copy:function(t,e){return Xr.prototype.copy.call(this,t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this.projectionMatrixInverse.copy(t.projectionMatrixInverse),this},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Camera: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(-e[8],-e[9],-e[10]).normalize()},updateMatrixWorld:function(t){Xr.prototype.updateMatrixWorld.call(this,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()},updateWorldMatrix:function(t,e){Xr.prototype.updateWorldMatrix.call(this,t,e),this.matrixWorldInverse.copy(this.matrixWorld).invert()},clone:function(){return(new this.constructor).copy(this)}}),xs.prototype=Object.assign(Object.create(gs.prototype),{constructor:xs,isPerspectiveCamera:!0,copy:function(t,e){return gs.prototype.copy.call(this,t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this},setFocalLength:function(t){const e=.5*this.getFilmHeight()/t;this.fov=2*Fn.RAD2DEG*Math.atan(e),this.updateProjectionMatrix()},getFocalLength:function(){const t=Math.tan(.5*Fn.DEG2RAD*this.fov);return.5*this.getFilmHeight()/t},getEffectiveFOV:function(){return 2*Fn.RAD2DEG*Math.atan(Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(t,e,n,r,i,s){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){const t=this.near;let e=t*Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom,n=2*e,r=this.aspect*n,i=-.5*r;const s=this.view;if(null!==this.view&&this.view.enabled){const t=s.fullWidth,o=s.fullHeight;i+=s.offsetX*r/t,e-=s.offsetY*n/o,r*=s.width/t,n*=s.height/o}const o=this.filmOffset;0!==o&&(i+=t*o/this.getFilmWidth()),this.projectionMatrix.makePerspective(i,i+r,e,e-n,t,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()},toJSON:function(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}});const vs=90,ys=1;class _s extends Xr{constructor(t,e,n){if(super(),this.type="CubeCamera",!0!==n.isWebGLCubeRenderTarget)return void console.error("THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.");this.renderTarget=n;const r=new xs(vs,ys,t,e);r.layers=this.layers,r.up.set(0,-1,0),r.lookAt(new Yn(1,0,0)),this.add(r);const i=new xs(vs,ys,t,e);i.layers=this.layers,i.up.set(0,-1,0),i.lookAt(new Yn(-1,0,0)),this.add(i);const s=new xs(vs,ys,t,e);s.layers=this.layers,s.up.set(0,0,1),s.lookAt(new Yn(0,1,0)),this.add(s);const o=new xs(vs,ys,t,e);o.layers=this.layers,o.up.set(0,0,-1),o.lookAt(new Yn(0,-1,0)),this.add(o);const a=new xs(vs,ys,t,e);a.layers=this.layers,a.up.set(0,-1,0),a.lookAt(new Yn(0,0,1)),this.add(a);const l=new xs(vs,ys,t,e);l.layers=this.layers,l.up.set(0,-1,0),l.lookAt(new Yn(0,0,-1)),this.add(l)}update(t,e){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget,[r,i,s,o,a,l]=this.children,c=t.xr.enabled,h=t.getRenderTarget();t.xr.enabled=!1;const u=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,t.setRenderTarget(n,0),t.render(e,r),t.setRenderTarget(n,1),t.render(e,i),t.setRenderTarget(n,2),t.render(e,s),t.setRenderTarget(n,3),t.render(e,o),t.setRenderTarget(n,4),t.render(e,a),n.texture.generateMipmaps=u,t.setRenderTarget(n,5),t.render(e,l),t.setRenderTarget(h),t.xr.enabled=c}}exports.CubeCamera=_s;class bs extends kn{constructor(t,e,n,r,i,s,o,a,l,c){super(t=void 0!==t?t:[],e=void 0!==e?e:nt,n,r,i,s,o=void 0!==o?o:Bt,a,l,c),this._needsFlipEnvMap=!0,this.flipY=!1}get images(){return this.image}set images(t){this.image=t}}exports.CubeTexture=bs,bs.prototype.isCubeTexture=!0;class ws extends jn{constructor(t,e,n){Number.isInteger(e)&&(console.warn("THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )"),e=n),super(t,t,e),e=e||{},this.texture=new bs(void 0,e.mapping,e.wrapS,e.wrapT,e.magFilter,e.minFilter,e.format,e.type,e.anisotropy,e.encoding),this.texture.generateMipmaps=void 0!==e.generateMipmaps&&e.generateMipmaps,this.texture.minFilter=void 0!==e.minFilter?e.minFilter:gt,this.texture._needsFlipEnvMap=!1}fromEquirectangularTexture(t,e){this.texture.type=e.type,this.texture.format=Nt,this.texture.encoding=e.encoding,this.texture.generateMipmaps=e.generateMipmaps,this.texture.minFilter=e.minFilter,this.texture.magFilter=e.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include <common>\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},r=new cs(5,5,5),i=new fs({name:"CubemapFromEquirect",uniforms:hs(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:p,blending:g});i.uniforms.tEquirect.value=e;const s=new os(r,i),o=e.minFilter;return e.minFilter===yt&&(e.minFilter=gt),new _s(1,10,this).update(t,s),e.minFilter=o,s.geometry.dispose(),s.material.dispose(),this}clear(t,e,n,r){const i=t.getRenderTarget();for(let s=0;s<6;s++)t.setRenderTarget(this,s),t.clear(e,n,r);t.setRenderTarget(i)}}exports.WebGLCubeRenderTarget=ws,ws.prototype.isWebGLCubeRenderTarget=!0;class Ms extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={data:t||null,width:e||1,height:n||1},this.magFilter=void 0!==l?l:ut,this.minFilter=void 0!==c?c:ut,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.needsUpdate=!0}}exports.DataTexture=Ms,Ms.prototype.isDataTexture=!0;const Ss=new dr,Ts=new Yn;class Es{constructor(t=new Qr,e=new Qr,n=new Qr,r=new Qr,i=new Qr,s=new Qr){this.planes=[t,e,n,r,i,s]}set(t,e,n,r,i,s){const o=this.planes;return o[0].copy(t),o[1].copy(e),o[2].copy(n),o[3].copy(r),o[4].copy(i),o[5].copy(s),this}copy(t){const e=this.planes;for(let n=0;n<6;n++)e[n].copy(t.planes[n]);return this}setFromProjectionMatrix(t){const e=this.planes,n=t.elements,r=n[0],i=n[1],s=n[2],o=n[3],a=n[4],l=n[5],c=n[6],h=n[7],u=n[8],p=n[9],d=n[10],m=n[11],f=n[12],g=n[13],x=n[14],v=n[15];return e[0].setComponents(o-r,h-a,m-u,v-f).normalize(),e[1].setComponents(o+r,h+a,m+u,v+f).normalize(),e[2].setComponents(o+i,h+l,m+p,v+g).normalize(),e[3].setComponents(o-i,h-l,m-p,v-g).normalize(),e[4].setComponents(o-s,h-c,m-d,v-x).normalize(),e[5].setComponents(o+s,h+c,m+d,v+x).normalize(),this}intersectsObject(t){const e=t.geometry;return null===e.boundingSphere&&e.computeBoundingSphere(),Ss.copy(e.boundingSphere).applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSprite(t){return Ss.center.set(0,0,0),Ss.radius=.7071067811865476,Ss.applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSphere(t){const e=this.planes,n=t.center,r=-t.radius;for(let i=0;i<6;i++){if(e[i].distanceToPoint(n)<r)return!1}return!0}intersectsBox(t){const e=this.planes;for(let n=0;n<6;n++){const r=e[n];if(Ts.x=r.normal.x>0?t.max.x:t.min.x,Ts.y=r.normal.y>0?t.max.y:t.min.y,Ts.z=r.normal.z>0?t.max.z:t.min.z,r.distanceToPoint(Ts)<0)return!1}return!0}containsPoint(t){const e=this.planes;for(let n=0;n<6;n++)if(e[n].distanceToPoint(t)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function As(){let t=null,e=!1,n=null,r=null;function i(e,s){n(e,s),r=t.requestAnimationFrame(i)}return{start:function(){!0!==e&&null!==n&&(r=t.requestAnimationFrame(i),e=!0)},stop:function(){t.cancelAnimationFrame(r),e=!1},setAnimationLoop:function(t){n=t},setContext:function(e){t=e}}}function Ls(t,e){const n=e.isWebGL2,r=new WeakMap;return{get:function(t){return t.isInterleavedBufferAttribute&&(t=t.data),r.get(t)},remove:function(e){e.isInterleavedBufferAttribute&&(e=e.data);const n=r.get(e);n&&(t.deleteBuffer(n.buffer),r.delete(e))},update:function(e,i){if(e.isGLBufferAttribute){const t=r.get(e);return void((!t||t.version<e.version)&&r.set(e,{buffer:e.buffer,type:e.type,bytesPerElement:e.elementSize,version:e.version}))}e.isInterleavedBufferAttribute&&(e=e.data);const s=r.get(e);void 0===s?r.set(e,function(e,r){const i=e.array,s=e.usage,o=t.createBuffer();t.bindBuffer(r,o),t.bufferData(r,i,s),e.onUploadCallback();let a=5126;return i instanceof Float32Array?a=5126:i instanceof Float64Array?console.warn("THREE.WebGLAttributes: Unsupported data buffer format: Float64Array."):i instanceof Uint16Array?e.isFloat16BufferAttribute?n?a=5131:console.warn("THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2."):a=5123:i instanceof Int16Array?a=5122:i instanceof Uint32Array?a=5125:i instanceof Int32Array?a=5124:i instanceof Int8Array?a=5120:i instanceof Uint8Array&&(a=5121),{buffer:o,type:a,bytesPerElement:i.BYTES_PER_ELEMENT,version:e.version}}(e,i)):s.version<e.version&&(function(e,r,i){const s=r.array,o=r.updateRange;t.bindBuffer(i,e),-1===o.count?t.bufferSubData(i,0,s):(n?t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s,o.offset,o.count):t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s.subarray(o.offset,o.offset+o.count)),o.count=-1)}(s.buffer,e,i),s.version=e.version)}}}exports.Frustum=Es;class Rs extends ki{constructor(t=1,e=1,n=1,r=1){super(),this.type="PlaneGeometry",this.parameters={width:t,height:e,widthSegments:n,heightSegments:r};const i=t/2,s=e/2,o=Math.floor(n),a=Math.floor(r),l=o+1,c=a+1,h=t/o,u=e/a,p=[],d=[],m=[],f=[];for(let g=0;g<c;g++){const t=g*u-s;for(let e=0;e<l;e++){const n=e*h-i;d.push(n,-t,0),m.push(0,0,1),f.push(e/o),f.push(1-g/a)}}for(let g=0;g<a;g++)for(let t=0;t<o;t++){const e=t+l*g,n=t+l*(g+1),r=t+1+l*(g+1),i=t+1+l*g;p.push(e,n,i),p.push(n,r,i)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.PlaneGeometry=exports.PlaneBufferGeometry=Rs;var Cs="#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif",Ps="#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",Ds="#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif",Is="#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif",Bs="#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",Ns="vec3 transformed = vec3( position );",Fs="vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif",Os="vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif",zs="#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif",Gs="#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",Hs="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",Us="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",ks="#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",Vs="#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif",Ws="#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif",js="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",qs="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",Xs="#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}",Ys="#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",Zs="vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",Js="#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",Qs="#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif",Ks="#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",$s="#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",to="gl_FragColor = linearToOutputTexel( gl_FragColor );",eo="\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}",no="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",ro="#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",io="#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",so="#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",oo="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",ao="#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif",lo="#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif",co="#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",ho="#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",uo="#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}",po="#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif",mo="#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",fo="vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif",go="uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif",xo="#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif",vo="ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",yo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)",_o="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",bo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)",wo="PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif",Mo="struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",So="\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",To="#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif",Eo="#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",Ao="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",Lo="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",Ro="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",Co="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",Po="#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif",Do="#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",Io="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",Bo="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",No="float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",Fo="#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",Oo="#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif",zo="#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif",Go="#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif",Ho="float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;",Uo="#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",ko="#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif",Vo="#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",Wo="#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif",jo="#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif",qo="vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}",Xo="#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",Yo="vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",Zo="#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",Jo="#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",Qo="float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",Ko="#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",$o="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",ta="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",ea="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif",na="float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",ra="#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",ia="#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif",sa="#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",oa="#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",aa="float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",la="#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",ca="#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",ha="#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",ua="#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif",pa="#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif",da="#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif",ma="#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif",fa="#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif",ga="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif",xa="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif",va="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif",ya="#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",_a="uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",ba="varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",wa="#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ma="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",Sa="#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",Ta="#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}",Ea="#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",Aa="#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}",La="uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ra="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}",Ca="uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Pa="uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",Da="uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ia="#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}",Ba="uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Na="#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Fa="#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Oa="#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}",za="#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ga="#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ha="#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ua="#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",ka="#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Va="#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Wa="#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}",ja="#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",qa="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Xa="uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}",Ya="uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Za="#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ja="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Qa="uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";const Ka={alphamap_fragment:Cs,alphamap_pars_fragment:Ps,alphatest_fragment:Ds,aomap_fragment:Is,aomap_pars_fragment:Bs,begin_vertex:Ns,beginnormal_vertex:Fs,bsdfs:Os,bumpmap_pars_fragment:zs,clipping_planes_fragment:Gs,clipping_planes_pars_fragment:Hs,clipping_planes_pars_vertex:Us,clipping_planes_vertex:ks,color_fragment:Vs,color_pars_fragment:Ws,color_pars_vertex:js,color_vertex:qs,common:Xs,cube_uv_reflection_fragment:Ys,defaultnormal_vertex:Zs,displacementmap_pars_vertex:Js,displacementmap_vertex:Qs,emissivemap_fragment:Ks,emissivemap_pars_fragment:$s,encodings_fragment:to,encodings_pars_fragment:eo,envmap_fragment:no,envmap_common_pars_fragment:ro,envmap_pars_fragment:io,envmap_pars_vertex:so,envmap_physical_pars_fragment:xo,envmap_vertex:oo,fog_vertex:ao,fog_pars_vertex:lo,fog_fragment:co,fog_pars_fragment:ho,gradientmap_pars_fragment:uo,lightmap_fragment:po,lightmap_pars_fragment:mo,lights_lambert_vertex:fo,lights_pars_begin:go,lights_toon_fragment:vo,lights_toon_pars_fragment:yo,lights_phong_fragment:_o,lights_phong_pars_fragment:bo,lights_physical_fragment:wo,lights_physical_pars_fragment:Mo,lights_fragment_begin:So,lights_fragment_maps:To,lights_fragment_end:Eo,logdepthbuf_fragment:Ao,logdepthbuf_pars_fragment:Lo,logdepthbuf_pars_vertex:Ro,logdepthbuf_vertex:Co,map_fragment:Po,map_pars_fragment:Do,map_particle_fragment:Io,map_particle_pars_fragment:Bo,metalnessmap_fragment:No,metalnessmap_pars_fragment:Fo,morphnormal_vertex:Oo,morphtarget_pars_vertex:zo,morphtarget_vertex:Go,normal_fragment_begin:Ho,normal_fragment_maps:Uo,normalmap_pars_fragment:ko,clearcoat_normal_fragment_begin:Vo,clearcoat_normal_fragment_maps:Wo,clearcoat_pars_fragment:jo,packing:qo,premultiplied_alpha_fragment:Xo,project_vertex:Yo,dithering_fragment:Zo,dithering_pars_fragment:Jo,roughnessmap_fragment:Qo,roughnessmap_pars_fragment:Ko,shadowmap_pars_fragment:$o,shadowmap_pars_vertex:ta,shadowmap_vertex:ea,shadowmask_pars_fragment:na,skinbase_vertex:ra,skinning_pars_vertex:ia,skinning_vertex:sa,skinnormal_vertex:oa,specularmap_fragment:aa,specularmap_pars_fragment:la,tonemapping_fragment:ca,tonemapping_pars_fragment:ha,transmissionmap_fragment:ua,transmissionmap_pars_fragment:pa,uv_pars_fragment:da,uv_pars_vertex:ma,uv_vertex:fa,uv2_pars_fragment:ga,uv2_pars_vertex:xa,uv2_vertex:va,worldpos_vertex:ya,background_frag:_a,background_vert:ba,cube_frag:wa,cube_vert:Ma,depth_frag:Sa,depth_vert:Ta,distanceRGBA_frag:Ea,distanceRGBA_vert:Aa,equirect_frag:La,equirect_vert:Ra,linedashed_frag:Ca,linedashed_vert:Pa,meshbasic_frag:Da,meshbasic_vert:Ia,meshlambert_frag:Ba,meshlambert_vert:Na,meshmatcap_frag:Fa,meshmatcap_vert:Oa,meshtoon_frag:za,meshtoon_vert:Ga,meshphong_frag:Ha,meshphong_vert:Ua,meshphysical_frag:ka,meshphysical_vert:Va,normal_frag:Wa,normal_vert:ja,points_frag:qa,points_vert:Xa,shadow_frag:Ya,shadow_vert:Za,sprite_frag:Ja,sprite_vert:Qa};exports.ShaderChunk=Ka;const $a={common:{diffuse:{value:new xi(15658734)},opacity:{value:1},map:{value:null},uvTransform:{value:new zn},uv2Transform:{value:new zn},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98},maxMipLevel:{value:0}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new On(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new xi(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new xi(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}},sprite:{diffuse:{value:new xi(15658734)},opacity:{value:1},center:{value:new On(.5,.5)},rotation:{value:0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}}};exports.UniformsLib=$a;const tl={basic:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.fog]),vertexShader:Ka.meshbasic_vert,fragmentShader:Ka.meshbasic_frag},lambert:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshlambert_vert,fragmentShader:Ka.meshlambert_frag},phong:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},specular:{value:new xi(1118481)},shininess:{value:30}}]),vertexShader:Ka.meshphong_vert,fragmentShader:Ka.meshphong_frag},standard:{uniforms:us([$a.common,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.roughnessmap,$a.metalnessmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag},toon:{uniforms:us([$a.common,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.gradientmap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshtoon_vert,fragmentShader:Ka.meshtoon_frag},matcap:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,{matcap:{value:null}}]),vertexShader:Ka.meshmatcap_vert,fragmentShader:Ka.meshmatcap_frag},points:{uniforms:us([$a.points,$a.fog]),vertexShader:Ka.points_vert,fragmentShader:Ka.points_frag},dashed:{uniforms:us([$a.common,$a.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:Ka.linedashed_vert,fragmentShader:Ka.linedashed_frag},depth:{uniforms:us([$a.common,$a.displacementmap]),vertexShader:Ka.depth_vert,fragmentShader:Ka.depth_frag},normal:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,{opacity:{value:1}}]),vertexShader:Ka.normal_vert,fragmentShader:Ka.normal_frag},sprite:{uniforms:us([$a.sprite,$a.fog]),vertexShader:Ka.sprite_vert,fragmentShader:Ka.sprite_frag},background:{uniforms:{uvTransform:{value:new zn},t2D:{value:null}},vertexShader:Ka.background_vert,fragmentShader:Ka.background_frag},cube:{uniforms:us([$a.envmap,{opacity:{value:1}}]),vertexShader:Ka.cube_vert,fragmentShader:Ka.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:Ka.equirect_vert,fragmentShader:Ka.equirect_frag},distanceRGBA:{uniforms:us([$a.common,$a.displacementmap,{referencePosition:{value:new Yn},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:Ka.distanceRGBA_vert,fragmentShader:Ka.distanceRGBA_frag},shadow:{uniforms:us([$a.lights,$a.fog,{color:{value:new xi(0)},opacity:{value:1}}]),vertexShader:Ka.shadow_vert,fragmentShader:Ka.shadow_frag}};function el(t,e,n,r,i){const s=new xi(0);let o,a,l=0,c=null,h=0,d=null;function m(t,e){n.buffers.color.setClear(t.r,t.g,t.b,e,i)}return{getClearColor:function(){return s},setClearColor:function(t,e=1){s.set(t),m(s,l=e)},getClearAlpha:function(){return l},setClearAlpha:function(t){m(s,l=t)},render:function(n,i,f,g){let x=!0===i.isScene?i.background:null;x&&x.isTexture&&(x=e.get(x));const v=t.xr,y=v.getSession&&v.getSession();y&&"additive"===y.environmentBlendMode&&(x=null),null===x?m(s,l):x&&x.isColor&&(m(x,1),g=!0),(t.autoClear||g)&&t.clear(t.autoClearColor,t.autoClearDepth,t.autoClearStencil),x&&(x.isCubeTexture||x.isWebGLCubeRenderTarget||x.mapping===ot)?(void 0===a&&((a=new os(new cs(1,1,1),new fs({name:"BackgroundCubeMaterial",uniforms:hs(tl.cube.uniforms),vertexShader:tl.cube.vertexShader,fragmentShader:tl.cube.fragmentShader,side:p,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),a.geometry.deleteAttribute("uv"),a.onBeforeRender=function(t,e,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(a.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(a)),x.isWebGLCubeRenderTarget&&(x=x.texture),a.material.uniforms.envMap.value=x,a.material.uniforms.flipEnvMap.value=x.isCubeTexture&&x._needsFlipEnvMap?-1:1,c===x&&h===x.version&&d===t.toneMapping||(a.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(a,a.geometry,a.material,0,0,null)):x&&x.isTexture&&(void 0===o&&((o=new os(new Rs(2,2),new fs({name:"BackgroundMaterial",uniforms:hs(tl.background.uniforms),vertexShader:tl.background.vertexShader,fragmentShader:tl.background.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),Object.defineProperty(o.material,"map",{get:function(){return 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s=c.newAttributes,o=c.enabledAttributes,a=c.attributeDivisors;if(s[n]=1,0===o[n]&&(t.enableVertexAttribArray(n),o[n]=1),a[n]!==i){(r.isWebGL2?t:e.get("ANGLE_instanced_arrays"))[r.isWebGL2?"vertexAttribDivisor":"vertexAttribDivisorANGLE"](n,i),a[n]=i}}function g(){const e=c.newAttributes,n=c.enabledAttributes;for(let r=0,i=n.length;r<i;r++)n[r]!==e[r]&&(t.disableVertexAttribArray(r),n[r]=0)}function x(e,n,i,s,o,a){!0!==r.isWebGL2||5124!==i&&5125!==i?t.vertexAttribPointer(e,n,i,s,o,a):t.vertexAttribIPointer(e,n,i,o,a)}function v(){y(),c!==l&&h((c=l).object)}function y(){l.geometry=null,l.program=null,l.wireframe=!1}return{setup:function(i,l,u,v,y){let _=!1;if(o){const e=function(e,n,i){const o=!0===i.wireframe;let l=a[e.id];void 0===l&&(l={},a[e.id]=l);let c=l[n.id];void 0===c&&(c={},l[n.id]=c);let h=c[o];return void 0===h&&(h=p(r.isWebGL2?t.createVertexArray():s.createVertexArrayOES()),c[o]=h),h}(v,u,l);c!==e&&h((c=e).object),(_=function(t,e){const n=c.attributes,r=t.attributes;let i=0;for(const s in r){const t=n[s],e=r[s];if(void 0===t)return!0;if(t.attribute!==e)return!0;if(t.data!==e.data)return!0;i++}return c.attributesNum!==i||c.index!==e}(v,y))&&function(t,e){const n={},r=t.attributes;let i=0;for(const s in r){const t=r[s],e={};e.attribute=t,t.data&&(e.data=t.data),n[s]=e,i++}c.attributes=n,c.attributesNum=i,c.index=e}(v,y)}else{const t=!0===l.wireframe;c.geometry===v.id&&c.program===u.id&&c.wireframe===t||(c.geometry=v.id,c.program=u.id,c.wireframe=t,_=!0)}!0===i.isInstancedMesh&&(_=!0),null!==y&&n.update(y,34963),_&&(function(i,s,o,a){if(!1===r.isWebGL2&&(i.isInstancedMesh||a.isInstancedBufferGeometry)&&null===e.get("ANGLE_instanced_arrays"))return;d();const l=a.attributes,c=o.getAttributes(),h=s.defaultAttributeValues;for(const e in c){const r=c[e];if(r>=0){const s=l[e];if(void 0!==s){const e=s.normalized,i=s.itemSize,o=n.get(s);if(void 0===o)continue;const l=o.buffer,c=o.type,h=o.bytesPerElement;if(s.isInterleavedBufferAttribute){const 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2:t.vertexAttrib2fv(r,n);break;case 3:t.vertexAttrib3fv(r,n);break;case 4:t.vertexAttrib4fv(r,n);break;default:t.vertexAttrib1fv(r,n)}}}}g()}(i,l,u,v),null!==y&&t.bindBuffer(34963,n.get(y).buffer))},reset:v,resetDefaultState:y,dispose:function(){v();for(const t in a){const e=a[t];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete a[t]}},releaseStatesOfGeometry:function(t){if(void 0===a[t.id])return;const e=a[t.id];for(const n in e){const t=e[n];for(const e in t)u(t[e].object),delete t[e];delete e[n]}delete a[t.id]},releaseStatesOfProgram:function(t){for(const e in a){const n=a[e];if(void 0===n[t.id])continue;const r=n[t.id];for(const t in r)u(r[t].object),delete r[t];delete n[t.id]}},initAttributes:d,enableAttribute:m,disableUnusedAttributes:g}}function rl(t,e,n,r){const i=r.isWebGL2;let s;this.setMode=function(t){s=t},this.render=function(e,r){t.drawArrays(s,e,r),n.update(r,s,1)},this.renderInstances=function(r,o,a){if(0===a)return;let l,c;if(i)l=t,c="drawArraysInstanced";else if(c="drawArraysInstancedANGLE",null===(l=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");l[c](s,r,o,a),n.update(o,s,a)}}function il(t,e,n){let r;function i(e){if("highp"===e){if(t.getShaderPrecisionFormat(35633,36338).precision>0&&t.getShaderPrecisionFormat(35632,36338).precision>0)return"highp";e="mediump"}return"mediump"===e&&t.getShaderPrecisionFormat(35633,36337).precision>0&&t.getShaderPrecisionFormat(35632,36337).precision>0?"mediump":"lowp"}const s="undefined"!=typeof WebGL2RenderingContext&&t instanceof WebGL2RenderingContext||"undefined"!=typeof WebGL2ComputeRenderingContext&&t instanceof WebGL2ComputeRenderingContext;let o=void 0!==n.precision?n.precision:"highp";const a=i(o);a!==o&&(console.warn("THREE.WebGLRenderer:",o,"not supported, using",a,"instead."),o=a);const l=!0===n.logarithmicDepthBuffer,c=t.getParameter(34930),h=t.getParameter(35660),u=t.getParameter(3379),p=t.getParameter(34076),d=t.getParameter(34921),m=t.getParameter(36347),f=t.getParameter(36348),g=t.getParameter(36349),x=h>0,v=s||e.has("OES_texture_float");return{isWebGL2:s,getMaxAnisotropy:function(){if(void 0!==r)return r;if(!0===e.has("EXT_texture_filter_anisotropic")){const n=e.get("EXT_texture_filter_anisotropic");r=t.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else r=0;return r},getMaxPrecision:i,precision:o,logarithmicDepthBuffer:l,maxTextures:c,maxVertexTextures:h,maxTextureSize:u,maxCubemapSize:p,maxAttributes:d,maxVertexUniforms:m,maxVaryings:f,maxFragmentUniforms:g,vertexTextures:x,floatFragmentTextures:v,floatVertexTextures:x&&v,maxSamples:s?t.getParameter(36183):0}}function sl(t){const e=this;let n=null,r=0,i=!1,s=!1;const o=new Qr,a=new zn,l={value:null,needsUpdate:!1};function c(){l.value!==n&&(l.value=n,l.needsUpdate=r>0),e.numPlanes=r,e.numIntersection=0}function h(t,n,r,i){const s=null!==t?t.length:0;let c=null;if(0!==s){if(c=l.value,!0!==i||null===c){const e=r+4*s,i=n.matrixWorldInverse;a.getNormalMatrix(i),(null===c||c.length<e)&&(c=new Float32Array(e));for(let n=0,l=r;n!==s;++n,l+=4)o.copy(t[n]).applyMatrix4(i,a),o.normal.toArray(c,l),c[l+3]=o.constant}l.value=c,l.needsUpdate=!0}return e.numPlanes=s,e.numIntersection=0,c}this.uniform=l,this.numPlanes=0,this.numIntersection=0,this.init=function(t,e,s){const o=0!==t.length||e||0!==r||i;return i=e,n=h(t,s,0),r=t.length,o},this.beginShadows=function(){s=!0,h(null)},this.endShadows=function(){s=!1,c()},this.setState=function(e,o,a){const u=e.clippingPlanes,p=e.clipIntersection,d=e.clipShadows,m=t.get(e);if(!i||null===u||0===u.length||s&&!d)s?h(null):c();else{const t=s?0:r,e=4*t;let i=m.clippingState||null;l.value=i,i=h(u,o,e,a);for(let r=0;r!==e;++r)i[r]=n[r];m.clippingState=i,this.numIntersection=p?this.numPlanes:0,this.numPlanes+=t}}}function ol(t){let e=new WeakMap;function n(t,e){return e===it?t.mapping=nt:e===st&&(t.mapping=rt),t}function r(t){const n=t.target;n.removeEventListener("dispose",r);const i=e.get(n);void 0!==i&&(e.delete(n),i.dispose())}return{get:function(i){if(i&&i.isTexture){const s=i.mapping;if(s===it||s===st){if(e.has(i))return n(e.get(i).texture,i.mapping);{const s=i.image;if(s&&s.height>0){const o=t.getRenderTarget(),a=new ws(s.height/2);return a.fromEquirectangularTexture(t,i),e.set(i,a),t.setRenderTarget(o),i.addEventListener("dispose",r),n(a.texture,i.mapping)}return null}}}return i},dispose:function(){e=new WeakMap}}}function al(t){const e={};function n(n){if(void 0!==e[n])return e[n];let r;switch(n){case"WEBGL_depth_texture":r=t.getExtension("WEBGL_depth_texture")||t.getExtension("MOZ_WEBGL_depth_texture")||t.getExtension("WEBKIT_WEBGL_depth_texture");break;case"EXT_texture_filter_anisotropic":r=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case"WEBGL_compressed_texture_s3tc":r=t.getExtension("WEBGL_compressed_texture_s3tc")||t.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case"WEBGL_compressed_texture_pvrtc":r=t.getExtension("WEBGL_compressed_texture_pvrtc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:r=t.getExtension(n)}return e[n]=r,r}return{has:function(t){return null!==n(t)},init:function(t){t.isWebGL2?n("EXT_color_buffer_float"):(n("WEBGL_depth_texture"),n("OES_texture_float"),n("OES_texture_half_float"),n("OES_texture_half_float_linear"),n("OES_standard_derivatives"),n("OES_element_index_uint"),n("OES_vertex_array_object"),n("ANGLE_instanced_arrays")),n("OES_texture_float_linear"),n("EXT_color_buffer_half_float")},get:function(t){const e=n(t);return null===e&&console.warn("THREE.WebGLRenderer: "+t+" extension not supported."),e}}}function ll(t,e,n,r){const i={},s=new WeakMap;function o(t){const a=t.target;null!==a.index&&e.remove(a.index);for(const n in a.attributes)e.remove(a.attributes[n]);a.removeEventListener("dispose",o),delete i[a.id];const l=s.get(a);l&&(e.remove(l),s.delete(a)),r.releaseStatesOfGeometry(a),!0===a.isInstancedBufferGeometry&&delete a._maxInstanceCount,n.memory.geometries--}function a(t){const n=[],r=t.index,i=t.attributes.position;let o=0;if(null!==r){const t=r.array;o=r.version;for(let e=0,r=t.length;e<r;e+=3){const r=t[e+0],i=t[e+1],s=t[e+2];n.push(r,i,i,s,s,r)}}else{const t=i.array;o=i.version;for(let e=0,r=t.length/3-1;e<r;e+=3){const t=e+0,r=e+1,i=e+2;n.push(t,r,r,i,i,t)}}const a=new(Di(n)>65535?Li:Ei)(n,1);a.version=o;const l=s.get(t);l&&e.remove(l),s.set(t,a)}return{get:function(t,e){return!0===i[e.id]?e:(e.addEventListener("dispose",o),i[e.id]=!0,n.memory.geometries++,e)},update:function(t){const n=t.attributes;for(const i in n)e.update(n[i],34962);const r=t.morphAttributes;for(const i in r){const t=r[i];for(let n=0,r=t.length;n<r;n++)e.update(t[n],34962)}},getWireframeAttribute:function(t){const e=s.get(t);if(e){const n=t.index;null!==n&&e.version<n.version&&a(t)}else a(t);return s.get(t)}}}function cl(t,e,n,r){const i=r.isWebGL2;let s,o,a;this.setMode=function(t){s=t},this.setIndex=function(t){o=t.type,a=t.bytesPerElement},this.render=function(e,r){t.drawElements(s,r,o,e*a),n.update(r,s,1)},this.renderInstances=function(r,l,c){if(0===c)return;let h,u;if(i)h=t,u="drawElementsInstanced";else if(u="drawElementsInstancedANGLE",null===(h=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");h[u](s,l,o,r*a,c),n.update(l,s,c)}}function hl(t){const e={frame:0,calls:0,triangles:0,points:0,lines:0};return{memory:{geometries:0,textures:0},render:e,programs:null,autoReset:!0,reset:function(){e.frame++,e.calls=0,e.triangles=0,e.points=0,e.lines=0},update:function(t,n,r){switch(e.calls++,n){case 4:e.triangles+=r*(t/3);break;case 1:e.lines+=r*(t/2);break;case 3:e.lines+=r*(t-1);break;case 2:e.lines+=r*t;break;case 0:e.points+=r*t;break;default:console.error("THREE.WebGLInfo: Unknown draw mode:",n)}}}}function ul(t,e){return t[0]-e[0]}function pl(t,e){return Math.abs(e[1])-Math.abs(t[1])}function dl(t){const e={},n=new Float32Array(8),r=[];for(let i=0;i<8;i++)r[i]=[i,0];return{update:function(i,s,o,a){const l=i.morphTargetInfluences,c=void 0===l?0:l.length;let h=e[s.id];if(void 0===h){h=[];for(let t=0;t<c;t++)h[t]=[t,0];e[s.id]=h}for(let t=0;t<c;t++){const e=h[t];e[0]=t,e[1]=l[t]}h.sort(pl);for(let t=0;t<8;t++)t<c&&h[t][1]?(r[t][0]=h[t][0],r[t][1]=h[t][1]):(r[t][0]=Number.MAX_SAFE_INTEGER,r[t][1]=0);r.sort(ul);const u=o.morphTargets&&s.morphAttributes.position,p=o.morphNormals&&s.morphAttributes.normal;let d=0;for(let t=0;t<8;t++){const e=r[t],i=e[0],o=e[1];i!==Number.MAX_SAFE_INTEGER&&o?(u&&s.getAttribute("morphTarget"+t)!==u[i]&&s.setAttribute("morphTarget"+t,u[i]),p&&s.getAttribute("morphNormal"+t)!==p[i]&&s.setAttribute("morphNormal"+t,p[i]),n[t]=o,d+=o):(u&&!0===s.hasAttribute("morphTarget"+t)&&s.deleteAttribute("morphTarget"+t),p&&!0===s.hasAttribute("morphNormal"+t)&&s.deleteAttribute("morphNormal"+t),n[t]=0)}const m=s.morphTargetsRelative?1:1-d;a.getUniforms().setValue(t,"morphTargetBaseInfluence",m),a.getUniforms().setValue(t,"morphTargetInfluences",n)}}}function ml(t,e,n,r){let i=new WeakMap;function s(t){const e=t.target;e.removeEventListener("dispose",s),n.remove(e.instanceMatrix),null!==e.instanceColor&&n.remove(e.instanceColor)}return{update:function(t){const o=r.render.frame,a=t.geometry,l=e.get(t,a);return i.get(l)!==o&&(e.update(l),i.set(l,o)),t.isInstancedMesh&&(!1===t.hasEventListener("dispose",s)&&t.addEventListener("dispose",s),n.update(t.instanceMatrix,34962),null!==t.instanceColor&&n.update(t.instanceColor,34962)),l},dispose:function(){i=new WeakMap}}}exports.ShaderLib=tl,tl.physical={uniforms:us([tl.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatNormalScale:{value:new On(1,1)},clearcoatNormalMap:{value:null},sheen:{value:new xi(0)},transmission:{value:0},transmissionMap:{value:null}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag};class fl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture2DArray=fl,fl.prototype.isDataTexture2DArray=!0;class gl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture3D=gl,gl.prototype.isDataTexture3D=!0;const xl=new kn,vl=new fl,yl=new gl,_l=new bs,bl=[],wl=[],Ml=new Float32Array(16),Sl=new Float32Array(9),Tl=new Float32Array(4);function El(t,e,n){const r=t[0];if(r<=0||r>0)return t;const i=e*n;let s=bl[i];if(void 0===s&&(s=new Float32Array(i),bl[i]=s),0!==e){r.toArray(s,0);for(let r=1,i=0;r!==e;++r)i+=n,t[r].toArray(s,i)}return s}function Al(t,e){if(t.length!==e.length)return!1;for(let n=0,r=t.length;n<r;n++)if(t[n]!==e[n])return!1;return!0}function Ll(t,e){for(let n=0,r=e.length;n<r;n++)t[n]=e[n]}function Rl(t,e){let n=wl[e];void 0===n&&(n=new Int32Array(e),wl[e]=n);for(let r=0;r!==e;++r)n[r]=t.allocateTextureUnit();return n}function Cl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1f(this.addr,e),n[0]=e)}function Pl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y||(t.uniform2f(this.addr,e.x,e.y),n[0]=e.x,n[1]=e.y);else{if(Al(n,e))return;t.uniform2fv(this.addr,e),Ll(n,e)}}function Dl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z||(t.uniform3f(this.addr,e.x,e.y,e.z),n[0]=e.x,n[1]=e.y,n[2]=e.z);else if(void 0!==e.r)n[0]===e.r&&n[1]===e.g&&n[2]===e.b||(t.uniform3f(this.addr,e.r,e.g,e.b),n[0]=e.r,n[1]=e.g,n[2]=e.b);else{if(Al(n,e))return;t.uniform3fv(this.addr,e),Ll(n,e)}}function Il(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z&&n[3]===e.w||(t.uniform4f(this.addr,e.x,e.y,e.z,e.w),n[0]=e.x,n[1]=e.y,n[2]=e.z,n[3]=e.w);else{if(Al(n,e))return;t.uniform4fv(this.addr,e),Ll(n,e)}}function Bl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix2fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Tl.set(r),t.uniformMatrix2fv(this.addr,!1,Tl),Ll(n,r)}}function Nl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix3fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Sl.set(r),t.uniformMatrix3fv(this.addr,!1,Sl),Ll(n,r)}}function Fl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix4fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Ml.set(r),t.uniformMatrix4fv(this.addr,!1,Ml),Ll(n,r)}}function Ol(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTexture2D(e||xl,i)}function zl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture2DArray(e||vl,i)}function Gl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture3D(e||yl,i)}function Hl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTextureCube(e||_l,i)}function Ul(t,e){const n=this.cache;n[0]!==e&&(t.uniform1i(this.addr,e),n[0]=e)}function kl(t,e){const n=this.cache;Al(n,e)||(t.uniform2iv(this.addr,e),Ll(n,e))}function Vl(t,e){const n=this.cache;Al(n,e)||(t.uniform3iv(this.addr,e),Ll(n,e))}function Wl(t,e){const n=this.cache;Al(n,e)||(t.uniform4iv(this.addr,e),Ll(n,e))}function jl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1ui(this.addr,e),n[0]=e)}function ql(t){switch(t){case 5126:return Cl;case 35664:return Pl;case 35665:return Dl;case 35666:return Il;case 35674:return Bl;case 35675:return Nl;case 35676:return Fl;case 5124:case 35670:return Ul;case 35667:case 35671:return kl;case 35668:case 35672:return Vl;case 35669:case 35673:return Wl;case 5125:return jl;case 35678:case 36198:case 36298:case 36306:case 35682:return Ol;case 35679:case 36299:case 36307:return Gl;case 35680:case 36300:case 36308:case 36293:return Hl;case 36289:case 36303:case 36311:case 36292:return zl}}function Xl(t,e){t.uniform1fv(this.addr,e)}function Yl(t,e){t.uniform1iv(this.addr,e)}function Zl(t,e){t.uniform2iv(this.addr,e)}function Jl(t,e){t.uniform3iv(this.addr,e)}function Ql(t,e){t.uniform4iv(this.addr,e)}function Kl(t,e){const n=El(e,this.size,2);t.uniform2fv(this.addr,n)}function $l(t,e){const n=El(e,this.size,3);t.uniform3fv(this.addr,n)}function tc(t,e){const n=El(e,this.size,4);t.uniform4fv(this.addr,n)}function ec(t,e){const n=El(e,this.size,4);t.uniformMatrix2fv(this.addr,!1,n)}function nc(t,e){const n=El(e,this.size,9);t.uniformMatrix3fv(this.addr,!1,n)}function rc(t,e){const n=El(e,this.size,16);t.uniformMatrix4fv(this.addr,!1,n)}function ic(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTexture2D(e[s]||xl,i[s])}function sc(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTextureCube(e[s]||_l,i[s])}function oc(t){switch(t){case 5126:return Xl;case 35664:return Kl;case 35665:return $l;case 35666:return tc;case 35674:return ec;case 35675:return nc;case 35676:return rc;case 5124:case 35670:return Yl;case 35667:case 35671:return Zl;case 35668:case 35672:return Jl;case 35669:case 35673:return Ql;case 35678:case 36198:case 36298:case 36306:case 35682:return ic;case 35680:case 36300:case 36308:case 36293:return sc}}function ac(t,e,n){this.id=t,this.addr=n,this.cache=[],this.setValue=ql(e.type)}function lc(t,e,n){this.id=t,this.addr=n,this.cache=[],this.size=e.size,this.setValue=oc(e.type)}function cc(t){this.id=t,this.seq=[],this.map={}}lc.prototype.updateCache=function(t){const e=this.cache;t instanceof 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texture2DProjLodEXT textureProjLod","#define textureCubeLodEXT textureLod","#define texture2DGradEXT textureGrad","#define texture2DProjGradEXT textureProjGrad","#define textureCubeGradEXT textureGrad"].join("\n")+"\n"+x);const y=v+x+a,_=mc(i,35633,v+g+o),b=mc(i,35632,y);if(i.attachShader(f,_),i.attachShader(f,b),void 0!==n.index0AttributeName?i.bindAttribLocation(f,0,n.index0AttributeName):!0===n.morphTargets&&i.bindAttribLocation(f,0,"position"),i.linkProgram(f),t.debug.checkShaderErrors){const t=i.getProgramInfoLog(f).trim(),e=i.getShaderInfoLog(_).trim(),n=i.getShaderInfoLog(b).trim();let r=!0,s=!0;if(!1===i.getProgramParameter(f,35714)){r=!1;const e=vc(i,_,"vertex"),n=vc(i,b,"fragment");console.error("THREE.WebGLProgram: shader error: ",i.getError(),"35715",i.getProgramParameter(f,35715),"gl.getProgramInfoLog",t,e,n)}else""!==t?console.warn("THREE.WebGLProgram: gl.getProgramInfoLog()",t):""!==e&&""!==n||(s=!1);s&&(this.diagnostics={runnable:r,programLog:t,vertexShader:{log:e,prefix:g},fragmentShader:{log:n,prefix:x}})}let w,M;return i.deleteShader(_),i.deleteShader(b),this.getUniforms=function(){return void 0===w&&(w=new dc(i,f)),w},this.getAttributes=function(){return void 0===M&&(M=Sc(i,f)),M},this.destroy=function(){r.releaseStatesOfProgram(this),i.deleteProgram(f),this.program=void 0},this.name=n.shaderName,this.id=fc++,this.cacheKey=e,this.usedTimes=1,this.program=f,this.vertexShader=_,this.fragmentShader=b,this}function kc(t,e,n,r,i,s){const o=[],a=r.isWebGL2,l=r.logarithmicDepthBuffer,c=r.floatVertexTextures,h=r.maxVertexUniforms,u=r.vertexTextures;let m=r.precision;const f={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",MeshPhongMaterial:"phong",MeshToonMaterial:"toon",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",MeshMatcapMaterial:"matcap",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow",SpriteMaterial:"sprite"},g=["precision","isWebGL2","supportsVertexTextures","outputEncoding","instancing","instancingColor","map","mapEncoding","matcap","matcapEncoding","envMap","envMapMode","envMapEncoding","envMapCubeUV","lightMap","lightMapEncoding","aoMap","emissiveMap","emissiveMapEncoding","bumpMap","normalMap","objectSpaceNormalMap","tangentSpaceNormalMap","clearcoatMap","clearcoatRoughnessMap","clearcoatNormalMap","displacementMap","specularMap","roughnessMap","metalnessMap","gradientMap","alphaMap","combine","vertexColors","vertexTangents","vertexUvs","uvsVertexOnly","fog","useFog","fogExp2","flatShading","sizeAttenuation","logarithmicDepthBuffer","skinning","maxBones","useVertexTexture","morphTargets","morphNormals","maxMorphTargets","maxMorphNormals","premultipliedAlpha","numDirLights","numPointLights","numSpotLights","numHemiLights","numRectAreaLights","numDirLightShadows","numPointLightShadows","numSpotLightShadows","shadowMapEnabled","shadowMapType","toneMapping","physicallyCorrectLights","alphaTest","doubleSided","flipSided","numClippingPlanes","numClipIntersection","depthPacking","dithering","sheen","transmissionMap"];function x(t){let e;return t&&t.isTexture?e=t.encoding:t&&t.isWebGLRenderTarget?(console.warn("THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead."),e=t.texture.encoding):e=Xe,e}return{getParameters:function(i,o,g,v,y){const _=v.fog,b=i.isMeshStandardMaterial?v.environment:null,w=e.get(i.envMap||b),M=f[i.type],S=y.isSkinnedMesh?function(t){const e=t.skeleton.bones;if(c)return 1024;{const t=h,n=Math.floor((t-20)/4),r=Math.min(n,e.length);return r<e.length?(console.warn("THREE.WebGLRenderer: Skeleton has "+e.length+" bones. This GPU supports "+r+"."),0):r}}(y):0;let T,E;if(null!==i.precision&&(m=r.getMaxPrecision(i.precision))!==i.precision&&console.warn("THREE.WebGLProgram.getParameters:",i.precision,"not supported, using",m,"instead."),M){const t=tl[M];T=t.vertexShader,E=t.fragmentShader}else T=i.vertexShader,E=i.fragmentShader;const A=t.getRenderTarget();return{isWebGL2:a,shaderID:M,shaderName:i.type,vertexShader:T,fragmentShader:E,defines:i.defines,isRawShaderMaterial:!0===i.isRawShaderMaterial,glslVersion:i.glslVersion,precision:m,instancing:!0===y.isInstancedMesh,instancingColor:!0===y.isInstancedMesh&&null!==y.instanceColor,supportsVertexTextures:u,outputEncoding:null!==A?x(A.texture):t.outputEncoding,map:!!i.map,mapEncoding:x(i.map),matcap:!!i.matcap,matcapEncoding:x(i.matcap),envMap:!!w,envMapMode:w&&w.mapping,envMapEncoding:x(w),envMapCubeUV:!!w&&(w.mapping===ot||w.mapping===at),lightMap:!!i.lightMap,lightMapEncoding:x(i.lightMap),aoMap:!!i.aoMap,emissiveMap:!!i.emissiveMap,emissiveMapEncoding:x(i.emissiveMap),bumpMap:!!i.bumpMap,normalMap:!!i.normalMap,objectSpaceNormalMap:i.normalMapType===sn,tangentSpaceNormalMap:i.normalMapType===rn,clearcoatMap:!!i.clearcoatMap,clearcoatRoughnessMap:!!i.clearcoatRoughnessMap,clearcoatNormalMap:!!i.clearcoatNormalMap,displacementMap:!!i.displacementMap,roughnessMap:!!i.roughnessMap,metalnessMap:!!i.metalnessMap,specularMap:!!i.specularMap,alphaMap:!!i.alphaMap,gradientMap:!!i.gradientMap,sheen:!!i.sheen,transmissionMap:!!i.transmissionMap,combine:i.combine,vertexTangents:i.normalMap&&i.vertexTangents,vertexColors:i.vertexColors,vertexUvs:!!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatMap||i.clearcoatRoughnessMap||i.clearcoatNormalMap||i.displacementMap||i.transmissionMap),uvsVertexOnly:!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatNormalMap||i.transmissionMap||!i.displacementMap),fog:!!_,useFog:i.fog,fogExp2:_&&_.isFogExp2,flatShading:!!i.flatShading,sizeAttenuation:i.sizeAttenuation,logarithmicDepthBuffer:l,skinning:i.skinning&&S>0,maxBones:S,useVertexTexture:c,morphTargets:i.morphTargets,morphNormals:i.morphNormals,maxMorphTargets:t.maxMorphTargets,maxMorphNormals:t.maxMorphNormals,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numClippingPlanes:s.numPlanes,numClipIntersection:s.numIntersection,dithering:i.dithering,shadowMapEnabled:t.shadowMap.enabled&&g.length>0,shadowMapType:t.shadowMap.type,toneMapping:i.toneMapped?t.toneMapping:Z,physicallyCorrectLights:t.physicallyCorrectLights,premultipliedAlpha:i.premultipliedAlpha,alphaTest:i.alphaTest,doubleSided:i.side===d,flipSided:i.side===p,depthPacking:void 0!==i.depthPacking&&i.depthPacking,index0AttributeName:i.index0AttributeName,extensionDerivatives:i.extensions&&i.extensions.derivatives,extensionFragDepth:i.extensions&&i.extensions.fragDepth,extensionDrawBuffers:i.extensions&&i.extensions.drawBuffers,extensionShaderTextureLOD:i.extensions&&i.extensions.shaderTextureLOD,rendererExtensionFragDepth:a||n.has("EXT_frag_depth"),rendererExtensionDrawBuffers:a||n.has("WEBGL_draw_buffers"),rendererExtensionShaderTextureLod:a||n.has("EXT_shader_texture_lod"),customProgramCacheKey:i.customProgramCacheKey()}},getProgramCacheKey:function(e){const n=[];if(e.shaderID?n.push(e.shaderID):(n.push(e.fragmentShader),n.push(e.vertexShader)),void 0!==e.defines)for(const t in e.defines)n.push(t),n.push(e.defines[t]);if(!1===e.isRawShaderMaterial){for(let t=0;t<g.length;t++)n.push(e[g[t]]);n.push(t.outputEncoding),n.push(t.gammaFactor)}return n.push(e.customProgramCacheKey),n.join()},getUniforms:function(t){const e=f[t.type];let n;if(e){const t=tl[e];n=ps.clone(t.uniforms)}else n=t.uniforms;return n},acquireProgram:function(e,n){let r;for(let t=0,i=o.length;t<i;t++){const e=o[t];if(e.cacheKey===n){++(r=e).usedTimes;break}}return void 0===r&&(r=new Uc(t,n,e,i),o.push(r)),r},releaseProgram:function(t){if(0==--t.usedTimes){const e=o.indexOf(t);o[e]=o[o.length-1],o.pop(),t.destroy()}},programs:o}}function Vc(){let t=new WeakMap;return{get:function(e){let n=t.get(e);return void 0===n&&(n={},t.set(e,n)),n},remove:function(e){t.delete(e)},update:function(e,n,r){t.get(e)[n]=r},dispose:function(){t=new WeakMap}}}function Wc(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.program!==e.program?t.program.id-e.program.id:t.material.id!==e.material.id?t.material.id-e.material.id:t.z!==e.z?t.z-e.z:t.id-e.id}function jc(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:t.id-e.id}function qc(t){const e=[];let n=0;const r=[],i=[],s={id:-1};function o(r,i,o,a,l,c){let h=e[n];const u=t.get(o);return void 0===h?(h={id:r.id,object:r,geometry:i,material:o,program:u.program||s,groupOrder:a,renderOrder:r.renderOrder,z:l,group:c},e[n]=h):(h.id=r.id,h.object=r,h.geometry=i,h.material=o,h.program=u.program||s,h.groupOrder=a,h.renderOrder=r.renderOrder,h.z=l,h.group=c),n++,h}return{opaque:r,transparent:i,init:function(){n=0,r.length=0,i.length=0},push:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).push(c)},unshift:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).unshift(c)},finish:function(){for(let t=n,r=e.length;t<r;t++){const n=e[t];if(null===n.id)break;n.id=null,n.object=null,n.geometry=null,n.material=null,n.program=null,n.group=null}},sort:function(t,e){r.length>1&&r.sort(t||Wc),i.length>1&&i.sort(e||jc)}}}function Xc(t){let e=new WeakMap;return{get:function(n,r){let i;return!1===e.has(n)?(i=new qc(t),e.set(n,[i])):r>=e.get(n).length?(i=new qc(t),e.get(n).push(i)):i=e.get(n)[r],i},dispose:function(){e=new WeakMap}}}function Yc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":n={direction:new Yn,color:new xi};break;case"SpotLight":n={position:new Yn,direction:new Yn,color:new xi,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":n={position:new Yn,color:new xi,distance:0,decay:0};break;case"HemisphereLight":n={direction:new Yn,skyColor:new xi,groundColor:new xi};break;case"RectAreaLight":n={color:new xi,position:new Yn,halfWidth:new Yn,halfHeight:new Yn}}return t[e.id]=n,n}}}function Zc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":case"SpotLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On};break;case"PointLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On,shadowCameraNear:1,shadowCameraFar:1e3}}return t[e.id]=n,n}}}let Jc=0;function Qc(t,e){return(e.castShadow?1:0)-(t.castShadow?1:0)}function Kc(t,e){const n=new Yc,r=Zc(),i={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadow:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]};for(let l=0;l<9;l++)i.probe.push(new Yn);const s=new Yn,o=new wr,a=new wr;return{setup:function(s){let o=0,a=0,l=0;for(let t=0;t<9;t++)i.probe[t].set(0,0,0);let c=0,h=0,u=0,p=0,d=0,m=0,f=0,g=0;s.sort(Qc);for(let t=0,e=s.length;t<e;t++){const e=s[t],x=e.color,v=e.intensity,y=e.distance,_=e.shadow&&e.shadow.map?e.shadow.map.texture:null;if(e.isAmbientLight)o+=x.r*v,a+=x.g*v,l+=x.b*v;else if(e.isLightProbe)for(let t=0;t<9;t++)i.probe[t].addScaledVector(e.sh.coefficients[t],v);else if(e.isDirectionalLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.directionalShadow[c]=n,i.directionalShadowMap[c]=_,i.directionalShadowMatrix[c]=e.shadow.matrix,m++}i.directional[c]=t,c++}else if(e.isSpotLight){const t=n.get(e);if(t.position.setFromMatrixPosition(e.matrixWorld),t.color.copy(x).multiplyScalar(v),t.distance=y,t.coneCos=Math.cos(e.angle),t.penumbraCos=Math.cos(e.angle*(1-e.penumbra)),t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.spotShadow[u]=n,i.spotShadowMap[u]=_,i.spotShadowMatrix[u]=e.shadow.matrix,g++}i.spot[u]=t,u++}else if(e.isRectAreaLight){const t=n.get(e);t.color.copy(x).multiplyScalar(v),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),i.rectArea[p]=t,p++}else if(e.isPointLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),t.distance=e.distance,t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,n.shadowCameraNear=t.camera.near,n.shadowCameraFar=t.camera.far,i.pointShadow[h]=n,i.pointShadowMap[h]=_,i.pointShadowMatrix[h]=e.shadow.matrix,f++}i.point[h]=t,h++}else if(e.isHemisphereLight){const t=n.get(e);t.skyColor.copy(e.color).multiplyScalar(v),t.groundColor.copy(e.groundColor).multiplyScalar(v),i.hemi[d]=t,d++}}p>0&&(e.isWebGL2?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_float_linear")?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_half_float_linear")?(i.rectAreaLTC1=$a.LTC_HALF_1,i.rectAreaLTC2=$a.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.")),i.ambient[0]=o,i.ambient[1]=a,i.ambient[2]=l;const x=i.hash;x.directionalLength===c&&x.pointLength===h&&x.spotLength===u&&x.rectAreaLength===p&&x.hemiLength===d&&x.numDirectionalShadows===m&&x.numPointShadows===f&&x.numSpotShadows===g||(i.directional.length=c,i.spot.length=u,i.rectArea.length=p,i.point.length=h,i.hemi.length=d,i.directionalShadow.length=m,i.directionalShadowMap.length=m,i.pointShadow.length=f,i.pointShadowMap.length=f,i.spotShadow.length=g,i.spotShadowMap.length=g,i.directionalShadowMatrix.length=m,i.pointShadowMatrix.length=f,i.spotShadowMatrix.length=g,x.directionalLength=c,x.pointLength=h,x.spotLength=u,x.rectAreaLength=p,x.hemiLength=d,x.numDirectionalShadows=m,x.numPointShadows=f,x.numSpotShadows=g,i.version=Jc++)},setupView:function(t,e){let n=0,r=0,l=0,c=0,h=0;const u=e.matrixWorldInverse;for(let p=0,d=t.length;p<d;p++){const e=t[p];if(e.isDirectionalLight){const t=i.directional[n];t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),n++}else if(e.isSpotLight){const t=i.spot[l];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),l++}else if(e.isRectAreaLight){const t=i.rectArea[c];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),a.identity(),o.copy(e.matrixWorld),o.premultiply(u),a.extractRotation(o),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),t.halfWidth.applyMatrix4(a),t.halfHeight.applyMatrix4(a),c++}else if(e.isPointLight){const t=i.point[r];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),r++}else if(e.isHemisphereLight){const t=i.hemi[h];t.direction.setFromMatrixPosition(e.matrixWorld),t.direction.transformDirection(u),t.direction.normalize(),h++}}},state:i}}function $c(t,e){const n=new Kc(t,e),r=[],i=[];return{init:function(){r.length=0,i.length=0},state:{lightsArray:r,shadowsArray:i,lights:n},setupLights:function(){n.setup(r)},setupLightsView:function(t){n.setupView(r,t)},pushLight:function(t){r.push(t)},pushShadow:function(t){i.push(t)}}}function th(t,e){let n=new WeakMap;return{get:function(r,i=0){let s;return!1===n.has(r)?(s=new $c(t,e),n.set(r,[s])):i>=n.get(r).length?(s=new $c(t,e),n.get(r).push(s)):s=n.get(r)[i],s},dispose:function(){n=new WeakMap}}}class eh extends hi{constructor(t){super(),this.type="MeshDepthMaterial",this.depthPacking=en,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.depthPacking=t.depthPacking,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this}}exports.MeshDepthMaterial=eh,eh.prototype.isMeshDepthMaterial=!0;class nh extends hi{constructor(t){super(),this.type="MeshDistanceMaterial",this.referencePosition=new Yn,this.nearDistance=1,this.farDistance=1e3,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.referencePosition.copy(t.referencePosition),this.nearDistance=t.nearDistance,this.farDistance=t.farDistance,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this}}exports.MeshDistanceMaterial=nh,nh.prototype.isMeshDistanceMaterial=!0;var rh="uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}",ih="void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";function sh(t,e,n){let r=new Es;const i=new On,s=new On,o=new Wn,a=[],c=[],m={},f={0:p,1:u,2:d},x=new fs({defines:{SAMPLE_RATE:.25,HALF_SAMPLE_RATE:1/8},uniforms:{shadow_pass:{value:null},resolution:{value:new On},radius:{value:4}},vertexShader:ih,fragmentShader:rh}),v=x.clone();v.defines.HORIZONTAL_PASS=1;const y=new ki;y.setAttribute("position",new bi(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const _=new os(y,x),b=this;function w(n,r){const i=e.update(_);x.uniforms.shadow_pass.value=n.map.texture,x.uniforms.resolution.value=n.mapSize,x.uniforms.radius.value=n.radius,t.setRenderTarget(n.mapPass),t.clear(),t.renderBufferDirect(r,null,i,x,_,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,t.setRenderTarget(n.map),t.clear(),t.renderBufferDirect(r,null,i,v,_,null)}function M(t,e,n){const r=t<<0|e<<1|n<<2;let i=a[r];return void 0===i&&(i=new eh({depthPacking:nn,morphTargets:t,skinning:e}),a[r]=i),i}function S(t,e,n){const r=t<<0|e<<1|n<<2;let i=c[r];return void 0===i&&(i=new nh({morphTargets:t,skinning:e}),c[r]=i),i}function T(e,n,r,i,s,o,a){let l=null,c=M,u=e.customDepthMaterial;if(!0===i.isPointLight&&(c=S,u=e.customDistanceMaterial),void 0===u){let t=!1;!0===r.morphTargets&&(t=n.morphAttributes&&n.morphAttributes.position&&n.morphAttributes.position.length>0);let i=!1;!0===e.isSkinnedMesh&&(!0===r.skinning?i=!0:console.warn("THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:",e)),l=c(t,i,!0===e.isInstancedMesh)}else l=u;if(t.localClippingEnabled&&!0===r.clipShadows&&0!==r.clippingPlanes.length){const t=l.uuid,e=r.uuid;let n=m[t];void 0===n&&(n={},m[t]=n);let i=n[e];void 0===i&&(i=l.clone(),n[e]=i),l=i}return l.visible=r.visible,l.wireframe=r.wireframe,l.side=a===h?null!==r.shadowSide?r.shadowSide:r.side:null!==r.shadowSide?r.shadowSide:f[r.side],l.clipShadows=r.clipShadows,l.clippingPlanes=r.clippingPlanes,l.clipIntersection=r.clipIntersection,l.wireframeLinewidth=r.wireframeLinewidth,l.linewidth=r.linewidth,!0===i.isPointLight&&!0===l.isMeshDistanceMaterial&&(l.referencePosition.setFromMatrixPosition(i.matrixWorld),l.nearDistance=s,l.farDistance=o),l}function E(n,i,s,o,a){if(!1===n.visible)return;if(n.layers.test(i.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&a===h)&&(!n.frustumCulled||r.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(s.matrixWorldInverse,n.matrixWorld);const r=e.update(n),i=n.material;if(Array.isArray(i)){const e=r.groups;for(let l=0,c=e.length;l<c;l++){const c=e[l],h=i[c.materialIndex];if(h&&h.visible){const e=T(n,r,h,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,c)}}}else if(i.visible){const e=T(n,r,i,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,null)}}const l=n.children;for(let t=0,e=l.length;t<e;t++)E(l[t],i,s,o,a)}this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=l,this.render=function(e,a,l){if(!1===b.enabled)return;if(!1===b.autoUpdate&&!1===b.needsUpdate)return;if(0===e.length)return;const c=t.getRenderTarget(),u=t.getActiveCubeFace(),p=t.getActiveMipmapLevel(),d=t.state;d.setBlending(g),d.buffers.color.setClear(1,1,1,1),d.buffers.depth.setTest(!0),d.setScissorTest(!1);for(let m=0,f=e.length;m<f;m++){const c=e[m],u=c.shadow;if(void 0===u){console.warn("THREE.WebGLShadowMap:",c,"has no shadow.");continue}if(!1===u.autoUpdate&&!1===u.needsUpdate)continue;i.copy(u.mapSize);const p=u.getFrameExtents();if(i.multiply(p),s.copy(u.mapSize),(i.x>n||i.y>n)&&(i.x>n&&(s.x=Math.floor(n/p.x),i.x=s.x*p.x,u.mapSize.x=s.x),i.y>n&&(s.y=Math.floor(n/p.y),i.y=s.y*p.y,u.mapSize.y=s.y)),null===u.map&&!u.isPointLightShadow&&this.type===h){const t={minFilter:gt,magFilter:gt,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.mapPass=new jn(i.x,i.y,t),u.camera.updateProjectionMatrix()}if(null===u.map){const t={minFilter:ut,magFilter:ut,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.camera.updateProjectionMatrix()}t.setRenderTarget(u.map),t.clear();const f=u.getViewportCount();for(let t=0;t<f;t++){const e=u.getViewport(t);o.set(s.x*e.x,s.y*e.y,s.x*e.z,s.y*e.w),d.viewport(o),u.updateMatrices(c,t),r=u.getFrustum(),E(a,l,u.camera,c,this.type)}u.isPointLightShadow||this.type!==h||w(u,l),u.needsUpdate=!1}b.needsUpdate=!1,t.setRenderTarget(c,u,p)}}function oh(t,e,n){const o=n.isWebGL2;const a=new function(){let e=!1;const n=new Wn;let r=null;const i=new Wn(0,0,0,0);return{setMask:function(n){r===n||e||(t.colorMask(n,n,n,n),r=n)},setLocked:function(t){e=t},setClear:function(e,r,s,o,a){!0===a&&(e*=o,r*=o,s*=o),n.set(e,r,s,o),!1===i.equals(n)&&(t.clearColor(e,r,s,o),i.copy(n))},reset:function(){e=!1,r=null,i.set(-1,0,0,0)}}},l=new function(){let e=!1,n=null,r=null,i=null;return{setTest:function(t){t?mt(2929):ft(2929)},setMask:function(r){n===r||e||(t.depthMask(r),n=r)},setFunc:function(e){if(r!==e){if(e)switch(e){case 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ah(t,e,n,r,i,s,o){const a=i.isWebGL2,l=i.maxTextures,c=i.maxCubemapSize,h=i.maxTextureSize,u=i.maxSamples,p=new WeakMap;let d,m=!1;try{m="undefined"!=typeof OffscreenCanvas&&null!==new OffscreenCanvas(1,1).getContext("2d")}catch(z){}function f(t,e){return m?new OffscreenCanvas(t,e):document.createElementNS("http://www.w3.org/1999/xhtml","canvas")}function g(t,e,n,r){let i=1;if((t.width>r||t.height>r)&&(i=r/Math.max(t.width,t.height)),i<1||!0===e){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const r=e?Fn.floorPowerOfTwo:Math.floor,s=r(i*t.width),o=r(i*t.height);void 0===d&&(d=f(s,o));const a=n?f(s,o):d;return a.width=s,a.height=o,a.getContext("2d").drawImage(t,0,0,s,o),console.warn("THREE.WebGLRenderer: Texture has been resized from ("+t.width+"x"+t.height+") to ("+s+"x"+o+")."),a}return"data"in t&&console.warn("THREE.WebGLRenderer: 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r=b[e];n.texImage2D(34069+t,e+1,f,d,m,r.image[t])}}e.__maxMipLevel=b.length}v(r,p)&&y(34067,r,u.width,u.height);e.__version=r.version,r.onUpdate&&r.onUpdate(r)}(o,e,i):(n.activeTexture(33984+i),n.bindTexture(34067,o.__webglTexture))}const A={[lt]:10497,[ct]:33071,[ht]:33648},L={[ut]:9728,[pt]:9984,[mt]:9986,[gt]:9729,[xt]:9985,[yt]:9987};function R(n,s,o){if(o?(t.texParameteri(n,10242,A[s.wrapS]),t.texParameteri(n,10243,A[s.wrapT]),32879!==n&&35866!==n||t.texParameteri(n,32882,A[s.wrapR]),t.texParameteri(n,10240,L[s.magFilter]),t.texParameteri(n,10241,L[s.minFilter])):(t.texParameteri(n,10242,33071),t.texParameteri(n,10243,33071),32879!==n&&35866!==n||t.texParameteri(n,32882,33071),s.wrapS===ct&&s.wrapT===ct||console.warn("THREE.WebGLRenderer: Texture is not power of two. 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l=function(t){return!a&&(t.wrapS!==ct||t.wrapT!==ct||t.minFilter!==ut&&t.minFilter!==gt)}(r)&&!1===x(r.image),c=g(r.image,l,!1,h),u=x(c)||a,p=s.convert(r.format);let d,m=s.convert(r.type),f=_(r.internalFormat,p,m);R(o,r,u);const b=r.mipmaps;if(r.isDepthTexture)f=6402,a?f=r.type===At?36012:r.type===Et?33190:r.type===Dt?35056:33189:r.type===At&&console.error("WebGLRenderer: Floating point depth texture requires WebGL2."),r.format===Gt&&6402===f&&r.type!==St&&r.type!==Et&&(console.warn("THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture."),r.type=St,m=s.convert(r.type)),r.format===Ht&&6402===f&&(f=34041,r.type!==Dt&&(console.warn("THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture."),r.type=Dt,m=s.convert(r.type))),n.texImage2D(3553,0,f,c.width,c.height,0,p,m,null);else if(r.isDataTexture)if(b.length>0&&u){for(let 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n.texImage2D(3553,0,f,p,m,c),e.__maxMipLevel=0;v(r,u)&&y(o,r,c.width,c.height),e.__version=r.version,r.onUpdate&&r.onUpdate(r)}function D(e,i,o,a){const l=i.texture,c=s.convert(l.format),h=s.convert(l.type),u=_(l.internalFormat,c,h);32879===a||35866===a?n.texImage3D(a,0,u,i.width,i.height,i.depth,0,c,h,null):n.texImage2D(a,0,u,i.width,i.height,0,c,h,null),t.bindFramebuffer(36160,e),t.framebufferTexture2D(36160,o,a,r.get(l).__webglTexture,0),t.bindFramebuffer(36160,null)}function I(e,n,r){if(t.bindRenderbuffer(36161,e),n.depthBuffer&&!n.stencilBuffer){let i=33189;if(r){const e=n.depthTexture;e&&e.isDepthTexture&&(e.type===At?i=36012:e.type===Et&&(i=33190));const r=N(n);t.renderbufferStorageMultisample(36161,r,i,n.width,n.height)}else t.renderbufferStorage(36161,i,n.width,n.height);t.framebufferRenderbuffer(36160,36096,36161,e)}else if(n.depthBuffer&&n.stencilBuffer){if(r){const e=N(n);t.renderbufferStorageMultisample(36161,e,35056,n.width,n.height)}else 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n.COMPRESSED_RGBA_S3TC_DXT3_EXT;if(t===Jt)return n.COMPRESSED_RGBA_S3TC_DXT5_EXT}if(t===Qt||t===Kt||t===$t||t===te){if(null===(n=e.get("WEBGL_compressed_texture_pvrtc")))return null;if(t===Qt)return n.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;if(t===Kt)return n.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;if(t===$t)return n.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;if(t===te)return n.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG}if(t===ee)return null!==(n=e.get("WEBGL_compressed_texture_etc1"))?n.COMPRESSED_RGB_ETC1_WEBGL:null;if((t===ne||t===re)&&null!==(n=e.get("WEBGL_compressed_texture_etc"))){if(t===ne)return n.COMPRESSED_RGB8_ETC2;if(t===re)return n.COMPRESSED_RGBA8_ETC2_EAC}return 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e=c.get(t.inputSource);e&&e.dispatchEvent({type:t.type,data:t.inputSource})}function x(){c.forEach(function(t,e){t.disconnect(e)}),c.clear(),m=null,f=null,t.setFramebuffer(null),t.setRenderTarget(t.getRenderTarget()),M.stop(),n.isPresenting=!1,n.dispatchEvent({type:"sessionend"})}function v(t){const e=r.inputSources;for(let n=0;n<l.length;n++)c.set(e[n],l[n]);for(let n=0;n<t.removed.length;n++){const e=t.removed[n],r=c.get(e);r&&(r.dispatchEvent({type:"disconnected",data:e}),c.delete(e))}for(let n=0;n<t.added.length;n++){const e=t.added[n],r=c.get(e);r&&r.dispatchEvent({type:"connected",data:e})}}this.enabled=!1,this.isPresenting=!1,this.getController=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getTargetRaySpace()},this.getControllerGrip=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getGripSpace()},this.getHand=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getHandSpace()},this.setFramebufferScaleFactor=function(t){i=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(t){o=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return s},this.getSession=function(){return r},this.setSession=async function(t){if(null!==(r=t)){r.addEventListener("select",g),r.addEventListener("selectstart",g),r.addEventListener("selectend",g),r.addEventListener("squeeze",g),r.addEventListener("squeezestart",g),r.addEventListener("squeezeend",g),r.addEventListener("end",x),r.addEventListener("inputsourceschange",v);const t=e.getContextAttributes();!0!==t.xrCompatible&&await e.makeXRCompatible();const a={antialias:t.antialias,alpha:t.alpha,depth:t.depth,stencil:t.stencil,framebufferScaleFactor:i},l=new XRWebGLLayer(r,e,a);r.updateRenderState({baseLayer:l}),s=await r.requestReferenceSpace(o),M.setContext(r),M.start(),n.isPresenting=!0,n.dispatchEvent({type:"sessionstart"})}};const y=new Yn,_=new Yn;function b(t,e){null===e?t.matrixWorld.copy(t.matrix):t.matrixWorld.multiplyMatrices(e.matrixWorld,t.matrix),t.matrixWorldInverse.copy(t.matrixWorld).invert()}this.getCamera=function(t){d.near=u.near=h.near=t.near,d.far=u.far=h.far=t.far,m===d.near&&f===d.far||(r.updateRenderState({depthNear:d.near,depthFar:d.far}),m=d.near,f=d.far);const e=t.parent,n=d.cameras;b(d,e);for(let r=0;r<n.length;r++)b(n[r],e);t.matrixWorld.copy(d.matrixWorld),t.matrix.copy(d.matrix),t.matrix.decompose(t.position,t.quaternion,t.scale);const i=t.children;for(let r=0,s=i.length;r<s;r++)i[r].updateMatrixWorld(!0);return 2===n.length?function(t,e,n){y.setFromMatrixPosition(e.matrixWorld),_.setFromMatrixPosition(n.matrixWorld);const 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r=e[t],s=n.getViewport(r),o=p[t];o.matrix.fromArray(r.transform.matrix),o.projectionMatrix.fromArray(r.projectionMatrix),o.viewport.set(s.x,s.y,s.width,s.height),0===t&&d.matrix.copy(o.matrix),!0===i&&d.cameras.push(o)}}const i=r.inputSources;for(let t=0;t<l.length;t++){const e=l[t],r=i[t];e.update(r,n,s)}w&&w(e,n)}),this.setAnimationLoop=function(t){w=t},this.dispose=function(){}}function dh(t){function e(e,n){e.opacity.value=n.opacity,n.color&&e.diffuse.value.copy(n.color),n.emissive&&e.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),n.map&&(e.map.value=n.map),n.alphaMap&&(e.alphaMap.value=n.alphaMap),n.specularMap&&(e.specularMap.value=n.specularMap);const r=t.get(n).envMap;if(r){e.envMap.value=r,e.flipEnvMap.value=r.isCubeTexture&&r._needsFlipEnvMap?-1:1,e.reflectivity.value=n.reflectivity,e.refractionRatio.value=n.refractionRatio;const i=t.get(r).__maxMipLevel;void 0!==i&&(e.maxMipLevel.value=i)}let i,s;n.lightMap&&(e.lightMap.value=n.lightMap,e.lightMapIntensity.value=n.lightMapIntensity),n.aoMap&&(e.aoMap.value=n.aoMap,e.aoMapIntensity.value=n.aoMapIntensity),n.map?i=n.map:n.specularMap?i=n.specularMap:n.displacementMap?i=n.displacementMap:n.normalMap?i=n.normalMap:n.bumpMap?i=n.bumpMap:n.roughnessMap?i=n.roughnessMap:n.metalnessMap?i=n.metalnessMap:n.alphaMap?i=n.alphaMap:n.emissiveMap?i=n.emissiveMap:n.clearcoatMap?i=n.clearcoatMap:n.clearcoatNormalMap?i=n.clearcoatNormalMap:n.clearcoatRoughnessMap&&(i=n.clearcoatRoughnessMap),void 0!==i&&(i.isWebGLRenderTarget&&(i=i.texture),!0===i.matrixAutoUpdate&&i.updateMatrix(),e.uvTransform.value.copy(i.matrix)),n.aoMap?s=n.aoMap:n.lightMap&&(s=n.lightMap),void 0!==s&&(s.isWebGLRenderTarget&&(s=s.texture),!0===s.matrixAutoUpdate&&s.updateMatrix(),e.uv2Transform.value.copy(s.matrix))}function 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Mt(t,e,n,r,i,s){if(t.onBeforeRender(f,e,n,r,i,s),t.modelViewMatrix.multiplyMatrices(n.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),t.isImmediateRenderObject){const r=Tt(n,e,i,t);W.setMaterial(i),ct.reset(),function(t,e){t.render(function(t){f.renderBufferImmediate(t,e)})}(t,r)}else f.renderBufferDirect(n,e,r,i,t,s);t.onAfterRender(f,e,n,r,i,s)}function St(t,e,n){!0!==e.isScene&&(e=H);const r=q.get(t),i=p.state.lights,s=p.state.shadowsArray,o=i.state.version,a=$.getParameters(t,i.state,s,e,n),l=$.getProgramCacheKey(a);let c=r.program,h=!0;if(r.environment=t.isMeshStandardMaterial?e.environment:null,r.fog=e.fog,r.envMap=Y.get(t.envMap||r.environment),void 0===c)t.addEventListener("dispose",xt);else if(c.cacheKey!==l)vt(t);else if(r.lightsStateVersion!==o)h=!1;else{if(void 0!==a.shaderID)return;h=!1}h&&(a.uniforms=$.getUniforms(t),t.onBeforeCompile(a,f),c=$.acquireProgram(a,l),r.program=c,r.uniforms=a.uniforms,r.outputEncoding=a.outputEncoding);const u=r.uniforms;(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(r.numClippingPlanes=rt.numPlanes,r.numIntersection=rt.numIntersection,u.clippingPlanes=rt.uniform),r.needsLights=function(t){return t.isMeshLambertMaterial||t.isMeshToonMaterial||t.isMeshPhongMaterial||t.isMeshStandardMaterial||t.isShadowMaterial||t.isShaderMaterial&&!0===t.lights}(t),r.lightsStateVersion=o,r.needsLights&&(u.ambientLightColor.value=i.state.ambient,u.lightProbe.value=i.state.probe,u.directionalLights.value=i.state.directional,u.directionalLightShadows.value=i.state.directionalShadow,u.spotLights.value=i.state.spot,u.spotLightShadows.value=i.state.spotShadow,u.rectAreaLights.value=i.state.rectArea,u.ltc_1.value=i.state.rectAreaLTC1,u.ltc_2.value=i.state.rectAreaLTC2,u.pointLights.value=i.state.point,u.pointLightShadows.value=i.state.pointShadow,u.hemisphereLights.value=i.state.hemi,u.directionalShadowMap.value=i.state.directionalShadowMap,u.directionalShadowMatrix.value=i.state.directionalShadowMatrix,u.spotShadowMap.value=i.state.spotShadowMap,u.spotShadowMatrix.value=i.state.spotShadowMatrix,u.pointShadowMap.value=i.state.pointShadowMap,u.pointShadowMatrix.value=i.state.pointShadowMatrix);const d=r.program.getUniforms(),m=dc.seqWithValue(d.seq,u);r.uniformsList=m}function Tt(t,e,n,r){!0!==e.isScene&&(e=H),X.resetTextureUnits();const i=e.fog,s=n.isMeshStandardMaterial?e.environment:null,o=null===_?f.outputEncoding:_.texture.encoding,a=Y.get(n.envMap||s),l=q.get(n),c=p.state.lights;if(!0===F&&(!0===O||t!==M)){const e=t===M&&n.id===w;rt.setState(n,t,e)}n.version===l.__version?n.fog&&l.fog!==i?St(n,e,r):l.environment!==s?St(n,e,r):l.needsLights&&l.lightsStateVersion!==c.state.version?St(n,e,r):void 0===l.numClippingPlanes||l.numClippingPlanes===rt.numPlanes&&l.numIntersection===rt.numIntersection?l.outputEncoding!==o?St(n,e,r):l.envMap!==a&&St(n,e,r):St(n,e,r):(St(n,e,r),l.__version=n.version);let h=!1,u=!1,d=!1;const m=l.program,g=m.getUniforms(),x=l.uniforms;if(W.useProgram(m.program)&&(h=!0,u=!0,d=!0),n.id!==w&&(w=n.id,u=!0),h||M!==t){if(g.setValue(ht,"projectionMatrix",t.projectionMatrix),V.logarithmicDepthBuffer&&g.setValue(ht,"logDepthBufFC",2/(Math.log(t.far+1)/Math.LN2)),M!==t&&(M=t,u=!0,d=!0),n.isShaderMaterial||n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshStandardMaterial||n.envMap){const e=g.map.cameraPosition;void 0!==e&&e.setValue(ht,G.setFromMatrixPosition(t.matrixWorld))}(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial)&&g.setValue(ht,"isOrthographic",!0===t.isOrthographicCamera),(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial||n.isShadowMaterial||n.skinning)&&g.setValue(ht,"viewMatrix",t.matrixWorldInverse)}if(n.skinning){g.setOptional(ht,r,"bindMatrix"),g.setOptional(ht,r,"bindMatrixInverse");const t=r.skeleton;if(t){const e=t.bones;if(V.floatVertexTextures){if(null===t.boneTexture){let n=Math.sqrt(4*e.length);n=Fn.ceilPowerOfTwo(n),n=Math.max(n,4);const r=new Float32Array(n*n*4);r.set(t.boneMatrices);const i=new Ms(r,n,n,Nt,At);t.boneMatrices=r,t.boneTexture=i,t.boneTextureSize=n}g.setValue(ht,"boneTexture",t.boneTexture,X),g.setValue(ht,"boneTextureSize",t.boneTextureSize)}else g.setOptional(ht,t,"boneMatrices")}}var v,y;return(u||l.receiveShadow!==r.receiveShadow)&&(l.receiveShadow=r.receiveShadow,g.setValue(ht,"receiveShadow",r.receiveShadow)),u&&(g.setValue(ht,"toneMappingExposure",f.toneMappingExposure),l.needsLights&&(y=d,(v=x).ambientLightColor.needsUpdate=y,v.lightProbe.needsUpdate=y,v.directionalLights.needsUpdate=y,v.directionalLightShadows.needsUpdate=y,v.pointLights.needsUpdate=y,v.pointLightShadows.needsUpdate=y,v.spotLights.needsUpdate=y,v.spotLightShadows.needsUpdate=y,v.rectAreaLights.needsUpdate=y,v.hemisphereLights.needsUpdate=y),i&&n.fog&&tt.refreshFogUniforms(x,i),tt.refreshMaterialUniforms(x,n,R,L),dc.upload(ht,l.uniformsList,x,X)),n.isShaderMaterial&&!0===n.uniformsNeedUpdate&&(dc.upload(ht,l.uniformsList,x,X),n.uniformsNeedUpdate=!1),n.isSpriteMaterial&&g.setValue(ht,"center",r.center),g.setValue(ht,"modelViewMatrix",r.modelViewMatrix),g.setValue(ht,"normalMatrix",r.normalMatrix),g.setValue(ht,"modelMatrix",r.matrixWorld),m}_t.setAnimationLoop(function(t){dt.isPresenting||yt&&yt(t)}),"undefined"!=typeof window&&_t.setContext(window),this.setAnimationLoop=function(t){yt=t,dt.setAnimationLoop(t),null===t?_t.stop():_t.start()},this.render=function(t,e){let n,r;if(void 0!==arguments[2]&&(console.warn("THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead."),n=arguments[2]),void 0!==arguments[3]&&(console.warn("THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead."),r=arguments[3]),void 0!==e&&!0!==e.isCamera)return void console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");if(!0===g)return;ct.resetDefaultState(),w=-1,M=null,!0===t.autoUpdate&&t.updateMatrixWorld(),null===e.parent&&e.updateMatrixWorld(),!0===dt.enabled&&!0===dt.isPresenting&&(e=dt.getCamera(e)),!0===t.isScene&&t.onBeforeRender(f,t,e,n||_),(p=nt.get(t,m.length)).init(),m.push(p),z.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),N.setFromProjectionMatrix(z),O=this.localClippingEnabled,F=rt.init(this.clippingPlanes,O,e),(u=et.get(t,d.length)).init(),d.push(u),function t(e,n,r,i){if(!1===e.visible)return;const s=e.layers.test(n.layers);if(s)if(e.isGroup)r=e.renderOrder;else if(e.isLOD)!0===e.autoUpdate&&e.update(n);else if(e.isLight)p.pushLight(e),e.castShadow&&p.pushShadow(e);else if(e.isSprite){if(!e.frustumCulled||N.intersectsSprite(e)){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;n.visible&&u.push(e,t,n,r,G.z,null)}}else if(e.isImmediateRenderObject)i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z),u.push(e,null,e.material,r,G.z,null);else if((e.isMesh||e.isLine||e.isPoints)&&(e.isSkinnedMesh&&e.skeleton.frame!==j.render.frame&&(e.skeleton.update(),e.skeleton.frame=j.render.frame),!e.frustumCulled||N.intersectsObject(e))){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;if(Array.isArray(n)){const i=t.groups;for(let s=0,o=i.length;s<o;s++){const o=i[s],a=n[o.materialIndex];a&&a.visible&&u.push(e,t,a,r,G.z,o)}}else n.visible&&u.push(e,t,n,r,G.z,null)}const o=e.children;for(let a=0,l=o.length;a<l;a++)t(o[a],n,r,i)}(t,e,0,f.sortObjects),u.finish(),!0===f.sortObjects&&u.sort(C,P),!0===F&&rt.beginShadows();const i=p.state.shadowsArray;mt.render(i,t,e),p.setupLights(),p.setupLightsView(e),!0===F&&rt.endShadows(),!0===this.info.autoReset&&this.info.reset(),void 0!==n&&this.setRenderTarget(n),it.render(u,t,e,r);const s=u.opaque,o=u.transparent;s.length>0&&wt(s,t,e),o.length>0&&wt(o,t,e),!0===t.isScene&&t.onAfterRender(f,t,e),null!==_&&(X.updateRenderTargetMipmap(_),X.updateMultisampleRenderTarget(_)),W.buffers.depth.setTest(!0),W.buffers.depth.setMask(!0),W.buffers.color.setMask(!0),W.setPolygonOffset(!1),m.pop(),p=m.length>0?m[m.length-1]:null,d.pop(),u=d.length>0?d[d.length-1]:null},this.setFramebuffer=function(t){x!==t&&null===_&&ht.bindFramebuffer(36160,t),x=t},this.getActiveCubeFace=function(){return v},this.getActiveMipmapLevel=function(){return y},this.getRenderTarget=function(){return _},this.setRenderTarget=function(t,e=0,n=0){_=t,v=e,y=n,t&&void 0===q.get(t).__webglFramebuffer&&X.setupRenderTarget(t);let r=x,i=!1,s=!1;if(t){const n=t.texture;(n.isDataTexture3D||n.isDataTexture2DArray)&&(s=!0);const o=q.get(t).__webglFramebuffer;t.isWebGLCubeRenderTarget?(r=o[e],i=!0):r=t.isWebGLMultisampleRenderTarget?q.get(t).__webglMultisampledFramebuffer:o,S.copy(t.viewport),T.copy(t.scissor),E=t.scissorTest}else S.copy(D).multiplyScalar(R).floor(),T.copy(I).multiplyScalar(R).floor(),E=B;if(b!==r&&(ht.bindFramebuffer(36160,r),b=r),W.viewport(S),W.scissor(T),W.setScissorTest(E),i){const r=q.get(t.texture);ht.framebufferTexture2D(36160,36064,34069+e,r.__webglTexture,n)}else if(s){const r=q.get(t.texture),i=e||0;ht.framebufferTextureLayer(36160,36064,r.__webglTexture,n||0,i)}},this.readRenderTargetPixels=function(t,e,n,r,i,s,o){if(!t||!t.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let a=q.get(t).__webglFramebuffer;if(t.isWebGLCubeRenderTarget&&void 0!==o&&(a=a[o]),a){let o=!1;a!==b&&(ht.bindFramebuffer(36160,a),o=!0);try{const a=t.texture,l=a.format,c=a.type;if(l!==Nt&&lt.convert(l)!==ht.getParameter(35739))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const h=c===Lt&&(k.has("EXT_color_buffer_half_float")||V.isWebGL2&&k.has("EXT_color_buffer_float"));if(!(c===bt||lt.convert(c)===ht.getParameter(35738)||c===At&&(V.isWebGL2||k.has("OES_texture_float")||k.has("WEBGL_color_buffer_float"))||h))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");36053===ht.checkFramebufferStatus(36160)?e>=0&&e<=t.width-r&&n>=0&&n<=t.height-i&&ht.readPixels(e,n,r,i,lt.convert(l),lt.convert(c),s):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.")}finally{o&&ht.bindFramebuffer(36160,b)}}},this.copyFramebufferToTexture=function(t,e,n=0){const r=Math.pow(2,-n),i=Math.floor(e.image.width*r),s=Math.floor(e.image.height*r),o=lt.convert(e.format);X.setTexture2D(e,0),ht.copyTexImage2D(3553,n,o,t.x,t.y,i,s,0),W.unbindTexture()},this.copyTextureToTexture=function(t,e,n,r=0){const i=e.image.width,s=e.image.height,o=lt.convert(n.format),a=lt.convert(n.type);X.setTexture2D(n,0),ht.pixelStorei(37440,n.flipY),ht.pixelStorei(37441,n.premultiplyAlpha),ht.pixelStorei(3317,n.unpackAlignment),e.isDataTexture?ht.texSubImage2D(3553,r,t.x,t.y,i,s,o,a,e.image.data):e.isCompressedTexture?ht.compressedTexSubImage2D(3553,r,t.x,t.y,e.mipmaps[0].width,e.mipmaps[0].height,o,e.mipmaps[0].data):ht.texSubImage2D(3553,r,t.x,t.y,o,a,e.image),0===r&&n.generateMipmaps&&ht.generateMipmap(3553),W.unbindTexture()},this.copyTextureToTexture3D=function(t,e,n,r,i=0){if(f.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const{width:s,height:o,data:a}=n.image,l=lt.convert(r.format),c=lt.convert(r.type);let h;if(r.isDataTexture3D)X.setTexture3D(r,0),h=32879;else{if(!r.isDataTexture2DArray)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");X.setTexture2DArray(r,0),h=35866}ht.pixelStorei(37440,r.flipY),ht.pixelStorei(37441,r.premultiplyAlpha),ht.pixelStorei(3317,r.unpackAlignment);const u=ht.getParameter(3314),p=ht.getParameter(32878),d=ht.getParameter(3316),m=ht.getParameter(3315),g=ht.getParameter(32877);ht.pixelStorei(3314,s),ht.pixelStorei(32878,o),ht.pixelStorei(3316,t.min.x),ht.pixelStorei(3315,t.min.y),ht.pixelStorei(32877,t.min.z),ht.texSubImage3D(h,i,e.x,e.y,e.z,t.max.x-t.min.x+1,t.max.y-t.min.y+1,t.max.z-t.min.z+1,l,c,a),ht.pixelStorei(3314,u),ht.pixelStorei(32878,p),ht.pixelStorei(3316,d),ht.pixelStorei(3315,m),ht.pixelStorei(32877,g),0===i&&r.generateMipmaps&&ht.generateMipmap(h),W.unbindTexture()},this.initTexture=function(t){X.setTexture2D(t,0),W.unbindTexture()},this.resetState=function(){W.reset(),ct.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}exports.Group=hh,hh.prototype.isGroup=!0,Object.assign(uh.prototype,{constructor:uh,getHandSpace:function(){return null===this._hand&&(this._hand=new hh,this._hand.matrixAutoUpdate=!1,this._hand.visible=!1,this._hand.joints={},this._hand.inputState={pinching:!1}),this._hand},getTargetRaySpace:function(){return null===this._targetRay&&(this._targetRay=new hh,this._targetRay.matrixAutoUpdate=!1,this._targetRay.visible=!1),this._targetRay},getGripSpace:function(){return null===this._grip&&(this._grip=new hh,this._grip.matrixAutoUpdate=!1,this._grip.visible=!1),this._grip},dispatchEvent:function(t){return null!==this._targetRay&&this._targetRay.dispatchEvent(t),null!==this._grip&&this._grip.dispatchEvent(t),null!==this._hand&&this._hand.dispatchEvent(t),this},disconnect:function(t){return this.dispatchEvent({type:"disconnected",data:t}),null!==this._targetRay&&(this._targetRay.visible=!1),null!==this._grip&&(this._grip.visible=!1),null!==this._hand&&(this._hand.visible=!1),this},update:function(t,e,n){let r=null,i=null,s=null;const o=this._targetRay,a=this._grip,l=this._hand;if(t&&"visible-blurred"!==e.session.visibilityState)if(l&&t.hand){s=!0;for(const s of t.hand.values()){const t=e.getJointPose(s,n);if(void 0===l.joints[s.jointName]){const t=new hh;t.matrixAutoUpdate=!1,t.visible=!1,l.joints[s.jointName]=t,l.add(t)}const r=l.joints[s.jointName];null!==t&&(r.matrix.fromArray(t.transform.matrix),r.matrix.decompose(r.position,r.rotation,r.scale),r.jointRadius=t.radius),r.visible=null!==t}const r=l.joints["index-finger-tip"],i=l.joints["thumb-tip"],o=r.position.distanceTo(i.position),a=.02,c=.005;l.inputState.pinching&&o>a+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this})):!l.inputState.pinching&&o<=a-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this}))}else null!==o&&null!==(r=e.getPose(t.targetRaySpace,n))&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale)),null!==a&&t.gripSpace&&null!==(i=e.getPose(t.gripSpace,n))&&(a.matrix.fromArray(i.transform.matrix),a.matrix.decompose(a.position,a.rotation,a.scale));return null!==o&&(o.visible=null!==r),null!==a&&(a.visible=null!==i),null!==l&&(l.visible=null!==s),this}}),Object.assign(ph.prototype,In.prototype);class gh extends fh{}exports.WebGL1Renderer=gh,gh.prototype.isWebGL1Renderer=!0;class xh{constructor(t,e){this.name="",this.color=new xi(t),this.density=void 0!==e?e:25e-5}clone(){return new xh(this.color,this.density)}toJSON(){return{type:"FogExp2",color:this.color.getHex(),density:this.density}}}exports.FogExp2=xh,xh.prototype.isFogExp2=!0;class vh{constructor(t,e,n){this.name="",this.color=new xi(t),this.near=void 0!==e?e:1,this.far=void 0!==n?n:1e3}clone(){return new vh(this.color,this.near,this.far)}toJSON(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}}}exports.Fog=vh,vh.prototype.isFog=!0;class yh extends Xr{constructor(){super(),this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.overrideMaterial=null,this.autoUpdate=!0,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){return super.copy(t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.environment&&(this.environment=t.environment.clone()),null!==t.fog&&(this.fog=t.fog.clone()),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.autoUpdate=t.autoUpdate,this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){const e=super.toJSON(t);return null!==this.background&&(e.object.background=this.background.toJSON(t)),null!==this.environment&&(e.object.environment=this.environment.toJSON(t)),null!==this.fog&&(e.object.fog=this.fog.toJSON()),e}}function _h(t,e){this.array=t,this.stride=e,this.count=void 0!==t?t.length/e:0,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0,this.uuid=Fn.generateUUID()}exports.Scene=yh,yh.prototype.isScene=!0,Object.defineProperty(_h.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(_h.prototype,{isInterleavedBuffer:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.stride,n*=e.stride;for(let r=0,i=this.stride;r<i;r++)this.array[t+r]=e.array[n+r];return this},set:function(t,e=0){return this.array.set(t,e),this},clone:function(t){void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer);const e=new _h(new this.array.constructor(t.arrayBuffers[this.array.buffer._uuid]),this.stride);return e.setUsage(this.usage),e},onUpload:function(t){return this.onUploadCallback=t,this},toJSON:function(t){return void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=Array.prototype.slice.call(new Uint32Array(this.array.buffer))),{uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride}}});const bh=new Yn;function wh(t,e,n,r){this.name="",this.data=t,this.itemSize=e,this.offset=n,this.normalized=!0===r}Object.defineProperties(wh.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}},needsUpdate:{set:function(t){this.data.needsUpdate=t}}}),Object.assign(wh.prototype,{isInterleavedBufferAttribute:!0,applyMatrix4:function(t){for(let e=0,n=this.data.count;e<n;e++)bh.x=this.getX(e),bh.y=this.getY(e),bh.z=this.getZ(e),bh.applyMatrix4(t),this.setXYZ(e,bh.x,bh.y,bh.z);return this},setX:function(t,e){return this.data.array[t*this.data.stride+this.offset]=e,this},setY:function(t,e){return this.data.array[t*this.data.stride+this.offset+1]=e,this},setZ:function(t,e){return this.data.array[t*this.data.stride+this.offset+2]=e,this},setW:function(t,e){return this.data.array[t*this.data.stride+this.offset+3]=e,this},getX:function(t){return this.data.array[t*this.data.stride+this.offset]},getY:function(t){return this.data.array[t*this.data.stride+this.offset+1]},getZ:function(t){return this.data.array[t*this.data.stride+this.offset+2]},getW:function(t){return this.data.array[t*this.data.stride+this.offset+3]},setXY:function(t,e,n){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this.data.array[t+3]=i,this},clone:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return new bi(new this.array.constructor(t),this.itemSize,this.normalized)}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.clone(t)),new wh(t.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized)},toJSON:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return{itemSize:this.itemSize,type:this.array.constructor.name,array:t,normalized:this.normalized}}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}});class Mh extends hi{constructor(t){super(),this.type="SpriteMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.rotation=0,this.sizeAttenuation=!0,this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.rotation=t.rotation,this.sizeAttenuation=t.sizeAttenuation,this}}let Sh;exports.SpriteMaterial=Mh,Mh.prototype.isSpriteMaterial=!0;const Th=new Yn,Eh=new Yn,Ah=new Yn,Lh=new On,Rh=new On,Ch=new wr,Ph=new Yn,Dh=new Yn,Ih=new Yn,Bh=new On,Nh=new On,Fh=new On;class Oh extends Xr{constructor(t){if(super(),this.type="Sprite",void 0===Sh){Sh=new ki;const t=new _h(new Float32Array([-.5,-.5,0,0,0,.5,-.5,0,1,0,.5,.5,0,1,1,-.5,.5,0,0,1]),5);Sh.setIndex([0,1,2,0,2,3]),Sh.setAttribute("position",new wh(t,3,0,!1)),Sh.setAttribute("uv",new wh(t,2,3,!1))}this.geometry=Sh,this.material=void 0!==t?t:new Mh,this.center=new On(.5,.5)}raycast(t,e){null===t.camera&&console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.'),Eh.setFromMatrixScale(this.matrixWorld),Ch.copy(t.camera.matrixWorld),this.modelViewMatrix.multiplyMatrices(t.camera.matrixWorldInverse,this.matrixWorld),Ah.setFromMatrixPosition(this.modelViewMatrix),t.camera.isPerspectiveCamera&&!1===this.material.sizeAttenuation&&Eh.multiplyScalar(-Ah.z);const n=this.material.rotation;let r,i;0!==n&&(i=Math.cos(n),r=Math.sin(n));const s=this.center;zh(Ph.set(-.5,-.5,0),Ah,s,Eh,r,i),zh(Dh.set(.5,-.5,0),Ah,s,Eh,r,i),zh(Ih.set(.5,.5,0),Ah,s,Eh,r,i),Bh.set(0,0),Nh.set(1,0),Fh.set(1,1);let o=t.ray.intersectTriangle(Ph,Dh,Ih,!1,Th);if(null===o&&(zh(Dh.set(-.5,.5,0),Ah,s,Eh,r,i),Nh.set(0,1),null===(o=t.ray.intersectTriangle(Ph,Ih,Dh,!1,Th))))return;const a=t.ray.origin.distanceTo(Th);a<t.near||a>t.far||e.push({distance:a,point:Th.clone(),uv:li.getUV(Th,Ph,Dh,Ih,Bh,Nh,Fh,new On),face:null,object:this})}copy(t){return super.copy(t),void 0!==t.center&&this.center.copy(t.center),this.material=t.material,this}}function zh(t,e,n,r,i,s){Lh.subVectors(t,n).addScalar(.5).multiply(r),void 0!==i?(Rh.x=s*Lh.x-i*Lh.y,Rh.y=i*Lh.x+s*Lh.y):Rh.copy(Lh),t.copy(e),t.x+=Rh.x,t.y+=Rh.y,t.applyMatrix4(Ch)}exports.Sprite=Oh,Oh.prototype.isSprite=!0;const Gh=new Yn,Hh=new Yn;class Uh extends Xr{constructor(){super(),this._currentLevel=0,this.type="LOD",Object.defineProperties(this,{levels:{enumerable:!0,value:[]},isLOD:{value:!0}}),this.autoUpdate=!0}copy(t){super.copy(t,!1);const e=t.levels;for(let n=0,r=e.length;n<r;n++){const t=e[n];this.addLevel(t.object.clone(),t.distance)}return this.autoUpdate=t.autoUpdate,this}addLevel(t,e=0){e=Math.abs(e);const n=this.levels;let r;for(r=0;r<n.length&&!(e<n[r].distance);r++);return n.splice(r,0,{distance:e,object:t}),this.add(t),this}getCurrentLevel(){return this._currentLevel}getObjectForDistance(t){const e=this.levels;if(e.length>0){let n,r;for(n=1,r=e.length;n<r&&!(t<e[n].distance);n++);return e[n-1].object}return null}raycast(t,e){if(this.levels.length>0){Gh.setFromMatrixPosition(this.matrixWorld);const n=t.ray.origin.distanceTo(Gh);this.getObjectForDistance(n).raycast(t,e)}}update(t){const e=this.levels;if(e.length>1){Gh.setFromMatrixPosition(t.matrixWorld),Hh.setFromMatrixPosition(this.matrixWorld);const n=Gh.distanceTo(Hh)/t.zoom;let r,i;for(e[0].object.visible=!0,r=1,i=e.length;r<i&&n>=e[r].distance;r++)e[r-1].object.visible=!1,e[r].object.visible=!0;for(this._currentLevel=r-1;r<i;r++)e[r].object.visible=!1}}toJSON(t){const e=super.toJSON(t);!1===this.autoUpdate&&(e.object.autoUpdate=!1),e.object.levels=[];const n=this.levels;for(let r=0,i=n.length;r<i;r++){const t=n[r];e.object.levels.push({object:t.object.uuid,distance:t.distance})}return e}}exports.LOD=Uh;const kh=new Yn,Vh=new Wn,Wh=new Wn,jh=new Yn,qh=new wr;function Xh(t,e){os.call(this,t,e),this.type="SkinnedMesh",this.bindMode="attached",this.bindMatrix=new wr,this.bindMatrixInverse=new wr}function Yh(){Xr.call(this),this.type="Bone"}Xh.prototype=Object.assign(Object.create(os.prototype),{constructor:Xh,isSkinnedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.bindMode=t.bindMode,this.bindMatrix.copy(t.bindMatrix),this.bindMatrixInverse.copy(t.bindMatrixInverse),this.skeleton=t.skeleton,this},bind:function(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.copy(e).invert()},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){const t=new Wn,e=this.geometry.attributes.skinWeight;for(let n=0,r=e.count;n<r;n++){t.x=e.getX(n),t.y=e.getY(n),t.z=e.getZ(n),t.w=e.getW(n);const r=1/t.manhattanLength();r!==1/0?t.multiplyScalar(r):t.set(1,0,0,0),e.setXYZW(n,t.x,t.y,t.z,t.w)}},updateMatrixWorld:function(t){os.prototype.updateMatrixWorld.call(this,t),"attached"===this.bindMode?this.bindMatrixInverse.copy(this.matrixWorld).invert():"detached"===this.bindMode?this.bindMatrixInverse.copy(this.bindMatrix).invert():console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)},boneTransform:function(t,e){const n=this.skeleton,r=this.geometry;Vh.fromBufferAttribute(r.attributes.skinIndex,t),Wh.fromBufferAttribute(r.attributes.skinWeight,t),kh.fromBufferAttribute(r.attributes.position,t).applyMatrix4(this.bindMatrix),e.set(0,0,0);for(let i=0;i<4;i++){const t=Wh.getComponent(i);if(0!==t){const r=Vh.getComponent(i);qh.multiplyMatrices(n.bones[r].matrixWorld,n.boneInverses[r]),e.addScaledVector(jh.copy(kh).applyMatrix4(qh),t)}}return e.applyMatrix4(this.bindMatrixInverse)}}),Yh.prototype=Object.assign(Object.create(Xr.prototype),{constructor:Yh,isBone:!0});const Zh=new wr,Jh=new wr;class Qh{constructor(t=[],e=[]){this.uuid=Fn.generateUUID(),this.bones=t.slice(0),this.boneInverses=e,this.boneMatrices=null,this.boneTexture=null,this.boneTextureSize=0,this.frame=-1,this.init()}init(){const t=this.bones,e=this.boneInverses;if(this.boneMatrices=new Float32Array(16*t.length),0===e.length)this.calculateInverses();else if(t.length!==e.length){console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones."),this.boneInverses=[];for(let t=0,e=this.bones.length;t<e;t++)this.boneInverses.push(new wr)}}calculateInverses(){this.boneInverses.length=0;for(let t=0,e=this.bones.length;t<e;t++){const e=new wr;this.bones[t]&&e.copy(this.bones[t].matrixWorld).invert(),this.boneInverses.push(e)}}pose(){for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&e.matrixWorld.copy(this.boneInverses[t]).invert()}for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&(e.parent&&e.parent.isBone?(e.matrix.copy(e.parent.matrixWorld).invert(),e.matrix.multiply(e.matrixWorld)):e.matrix.copy(e.matrixWorld),e.matrix.decompose(e.position,e.quaternion,e.scale))}}update(){const t=this.bones,e=this.boneInverses,n=this.boneMatrices,r=this.boneTexture;for(let i=0,s=t.length;i<s;i++){const r=t[i]?t[i].matrixWorld:Jh;Zh.multiplyMatrices(r,e[i]),Zh.toArray(n,16*i)}null!==r&&(r.needsUpdate=!0)}clone(){return new Qh(this.bones,this.boneInverses)}getBoneByName(t){for(let e=0,n=this.bones.length;e<n;e++){const n=this.bones[e];if(n.name===t)return n}}dispose(){null!==this.boneTexture&&(this.boneTexture.dispose(),this.boneTexture=null)}fromJSON(t,e){this.uuid=t.uuid;for(let n=0,r=t.bones.length;n<r;n++){const r=t.bones[n];let i=e[r];void 0===i&&(console.warn("THREE.Skeleton: No bone found with UUID:",r),i=new Yh),this.bones.push(i),this.boneInverses.push((new wr).fromArray(t.boneInverses[n]))}return this.init(),this}toJSON(){const t={metadata:{version:4.5,type:"Skeleton",generator:"Skeleton.toJSON"},bones:[],boneInverses:[]};t.uuid=this.uuid;const e=this.bones,n=this.boneInverses;for(let r=0,i=e.length;r<i;r++){const i=e[r];t.bones.push(i.uuid);const s=n[r];t.boneInverses.push(s.toArray())}return t}}exports.Skeleton=Qh;const Kh=new wr,$h=new wr,tu=[],eu=new os;function nu(t,e,n){os.call(this,t,e),this.instanceMatrix=new bi(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.frustumCulled=!1}nu.prototype=Object.assign(Object.create(os.prototype),{constructor:nu,isInstancedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.instanceMatrix.copy(t.instanceMatrix),null!==t.instanceColor&&(this.instanceColor=t.instanceColor.clone()),this.count=t.count,this},getColorAt:function(t,e){e.fromArray(this.instanceColor.array,3*t)},getMatrixAt:function(t,e){e.fromArray(this.instanceMatrix.array,16*t)},raycast:function(t,e){const n=this.matrixWorld,r=this.count;if(eu.geometry=this.geometry,eu.material=this.material,void 0!==eu.material)for(let i=0;i<r;i++){this.getMatrixAt(i,Kh),$h.multiplyMatrices(n,Kh),eu.matrixWorld=$h,eu.raycast(t,tu);for(let t=0,n=tu.length;t<n;t++){const n=tu[t];n.instanceId=i,n.object=this,e.push(n)}tu.length=0}},setColorAt:function(t,e){null===this.instanceColor&&(this.instanceColor=new bi(new Float32Array(3*this.count),3)),e.toArray(this.instanceColor.array,3*t)},setMatrixAt:function(t,e){e.toArray(this.instanceMatrix.array,16*t)},updateMorphTargets:function(){},dispose:function(){this.dispatchEvent({type:"dispose"})}});class ru extends hi{constructor(t){super(),this.type="LineBasicMaterial",this.color=new xi(16777215),this.linewidth=1,this.linecap="round",this.linejoin="round",this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this.morphTargets=t.morphTargets,this}}exports.LineBasicMaterial=ru,ru.prototype.isLineBasicMaterial=!0;const iu=new Yn,su=new Yn,ou=new wr,au=new br,lu=new dr;function cu(t=new ki,e=new ru){Xr.call(this),this.type="Line",this.geometry=t,this.material=e,this.updateMorphTargets()}cu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:cu,isLine:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[0];for(let t=1,r=e.count;t<r;t++)iu.fromBufferAttribute(e,t-1),su.fromBufferAttribute(e,t),n[t]=n[t-1],n[t]+=iu.distanceTo(su);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Line.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),lu.copy(n.boundingSphere),lu.applyMatrix4(r),lu.radius+=i,!1===t.ray.intersectsSphere(lu))return;ou.copy(r).invert(),au.copy(t.ray).applyMatrix4(ou);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s,a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=this.isLineSegments?2:1;if(n.isBufferGeometry){const r=n.index,i=n.attributes.position;if(null!==r){const n=r.array;for(let r=0,s=n.length-1;r<s;r+=u){const s=n[r],u=n[r+1];if(a.fromBufferAttribute(i,s),l.fromBufferAttribute(i,u),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const p=t.ray.origin.distanceTo(h);p<t.near||p>t.far||e.push({distance:p,point:c.clone().applyMatrix4(this.matrixWorld),index:r,face:null,faceIndex:null,object:this})}}else for(let n=0,s=i.count-1;n<s;n+=u){if(a.fromBufferAttribute(i,n),l.fromBufferAttribute(i,n+1),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const r=t.ray.origin.distanceTo(h);r<t.near||r>t.far||e.push({distance:r,point:c.clone().applyMatrix4(this.matrixWorld),index:n,face:null,faceIndex:null,object:this})}}else n.isGeometry&&console.error("THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});const hu=new Yn,uu=new Yn;function pu(t,e){cu.call(this,t,e),this.type="LineSegments"}pu.prototype=Object.assign(Object.create(cu.prototype),{constructor:pu,isLineSegments:!0,computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[];for(let t=0,r=e.count;t<r;t+=2)hu.fromBufferAttribute(e,t),uu.fromBufferAttribute(e,t+1),n[t]=0===t?0:n[t-1],n[t+1]=n[t]+hu.distanceTo(uu);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this}});class du extends cu{constructor(t,e){super(t,e),this.type="LineLoop"}}exports.LineLoop=du,du.prototype.isLineLoop=!0;class mu extends hi{constructor(t){super(),this.type="PointsMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.size=1,this.sizeAttenuation=!0,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this.morphTargets=t.morphTargets,this}}exports.PointsMaterial=mu,mu.prototype.isPointsMaterial=!0;const fu=new wr,gu=new br,xu=new dr,vu=new Yn;function yu(t=new ki,e=new mu){Xr.call(this),this.type="Points",this.geometry=t,this.material=e,this.updateMorphTargets()}function _u(t,e,n,r,i,s,o){const a=gu.distanceSqToPoint(t);if(a<n){const n=new Yn;gu.closestPointToPoint(t,n),n.applyMatrix4(r);const l=i.ray.origin.distanceTo(n);if(l<i.near||l>i.far)return;s.push({distance:l,distanceToRay:Math.sqrt(a),point:n,index:e,face:null,object:o})}}yu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:yu,isPoints:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Points.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),xu.copy(n.boundingSphere),xu.applyMatrix4(r),xu.radius+=i,!1===t.ray.intersectsSphere(xu))return;fu.copy(r).invert(),gu.copy(t.ray).applyMatrix4(fu);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s;if(n.isBufferGeometry){const i=n.index,s=n.attributes.position;if(null!==i){const n=i.array;for(let i=0,a=n.length;i<a;i++){const a=n[i];vu.fromBufferAttribute(s,a),_u(vu,a,o,r,t,e,this)}}else for(let n=0,a=s.count;n<a;n++)vu.fromBufferAttribute(s,n),_u(vu,n,o,r,t,e,this)}else console.error("THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});class bu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.format=void 0!==o?o:Bt,this.minFilter=void 0!==s?s:gt,this.magFilter=void 0!==i?i:gt,this.generateMipmaps=!1;const c=this;"requestVideoFrameCallback"in t&&t.requestVideoFrameCallback(function e(){c.needsUpdate=!0,t.requestVideoFrameCallback(e)})}clone(){return new this.constructor(this.image).copy(this)}update(){const t=this.image;!1==="requestVideoFrameCallback"in t&&t.readyState>=t.HAVE_CURRENT_DATA&&(this.needsUpdate=!0)}}exports.VideoTexture=bu,bu.prototype.isVideoTexture=!0;class wu extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={width:e,height:n},this.mipmaps=t,this.flipY=!1,this.generateMipmaps=!1}}exports.CompressedTexture=wu,wu.prototype.isCompressedTexture=!0;class Mu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.needsUpdate=!0}}exports.CanvasTexture=Mu,Mu.prototype.isCanvasTexture=!0;class Su extends kn{constructor(t,e,n,r,i,s,o,a,l,c){if((c=void 0!==c?c:Gt)!==Gt&&c!==Ht)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===Gt&&(n=St),void 0===n&&c===Ht&&(n=Dt),super(null,r,i,s,o,a,c,n,l),this.image={width:t,height:e},this.magFilter=void 0!==o?o:ut,this.minFilter=void 0!==a?a:ut,this.flipY=!1,this.generateMipmaps=!1}}exports.DepthTexture=Su,Su.prototype.isDepthTexture=!0;class Tu extends ki{constructor(t=1,e=8,n=0,r=2*Math.PI){super(),this.type="CircleGeometry",this.parameters={radius:t,segments:e,thetaStart:n,thetaLength:r},e=Math.max(3,e);const i=[],s=[],o=[],a=[],l=new Yn,c=new On;s.push(0,0,0),o.push(0,0,1),a.push(.5,.5);for(let h=0,u=3;h<=e;h++,u+=3){const i=n+h/e*r;l.x=t*Math.cos(i),l.y=t*Math.sin(i),s.push(l.x,l.y,l.z),o.push(0,0,1),c.x=(s[u]/t+1)/2,c.y=(s[u+1]/t+1)/2,a.push(c.x,c.y)}for(let h=1;h<=e;h++)i.push(h,h+1,0);this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("normal",new Ci(o,3)),this.setAttribute("uv",new Ci(a,2))}}exports.CircleGeometry=exports.CircleBufferGeometry=Tu;class Eu extends ki{constructor(t=1,e=1,n=1,r=8,i=1,s=!1,o=0,a=2*Math.PI){super(),this.type="CylinderGeometry",this.parameters={radiusTop:t,radiusBottom:e,height:n,radialSegments:r,heightSegments:i,openEnded:s,thetaStart:o,thetaLength:a};const l=this;r=Math.floor(r),i=Math.floor(i);const c=[],h=[],u=[],p=[];let d=0;const m=[],f=n/2;let g=0;function x(n){const i=d,s=new On,m=new Yn;let x=0;const v=!0===n?t:e,y=!0===n?1:-1;for(let t=1;t<=r;t++)h.push(0,f*y,0),u.push(0,y,0),p.push(.5,.5),d++;const _=d;for(let t=0;t<=r;t++){const e=t/r*a+o,n=Math.cos(e),i=Math.sin(e);m.x=v*i,m.y=f*y,m.z=v*n,h.push(m.x,m.y,m.z),u.push(0,y,0),s.x=.5*n+.5,s.y=.5*i*y+.5,p.push(s.x,s.y),d++}for(let t=0;t<r;t++){const e=i+t,r=_+t;!0===n?c.push(r,r+1,e):c.push(r+1,r,e),x+=3}l.addGroup(g,x,!0===n?1:2),g+=x}!function(){const s=new Yn,x=new Yn;let v=0;const y=(e-t)/n;for(let l=0;l<=i;l++){const c=[],g=l/i,v=g*(e-t)+t;for(let t=0;t<=r;t++){const e=t/r,i=e*a+o,l=Math.sin(i),m=Math.cos(i);x.x=v*l,x.y=-g*n+f,x.z=v*m,h.push(x.x,x.y,x.z),s.set(l,y,m).normalize(),u.push(s.x,s.y,s.z),p.push(e,1-g),c.push(d++)}m.push(c)}for(let t=0;t<r;t++)for(let e=0;e<i;e++){const n=m[e][t],r=m[e+1][t],i=m[e+1][t+1],s=m[e][t+1];c.push(n,r,s),c.push(r,i,s),v+=6}l.addGroup(g,v,0),g+=v}(),!1===s&&(t>0&&x(!0),e>0&&x(!1)),this.setIndex(c),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}}exports.CylinderGeometry=exports.CylinderBufferGeometry=Eu;class Au extends Eu{constructor(t=1,e=1,n=8,r=1,i=!1,s=0,o=2*Math.PI){super(0,t,e,n,r,i,s,o),this.type="ConeGeometry",this.parameters={radius:t,height:e,radialSegments:n,heightSegments:r,openEnded:i,thetaStart:s,thetaLength:o}}}exports.ConeGeometry=exports.ConeBufferGeometry=Au;class Lu extends ki{constructor(t,e,n=1,r=0){super(),this.type="PolyhedronGeometry",this.parameters={vertices:t,indices:e,radius:n,detail:r};const i=[],s=[];function o(t,e,n,r){const i=r+1,s=[];for(let o=0;o<=i;o++){s[o]=[];const r=t.clone().lerp(n,o/i),a=e.clone().lerp(n,o/i),l=i-o;for(let t=0;t<=l;t++)s[o][t]=0===t&&o===i?r:r.clone().lerp(a,t/l)}for(let o=0;o<i;o++)for(let t=0;t<2*(i-o)-1;t++){const e=Math.floor(t/2);t%2==0?(a(s[o][e+1]),a(s[o+1][e]),a(s[o][e])):(a(s[o][e+1]),a(s[o+1][e+1]),a(s[o+1][e]))}}function a(t){i.push(t.x,t.y,t.z)}function l(e,n){const r=3*e;n.x=t[r+0],n.y=t[r+1],n.z=t[r+2]}function c(t,e,n,r){r<0&&1===t.x&&(s[e]=t.x-1),0===n.x&&0===n.z&&(s[e]=r/2/Math.PI+.5)}function h(t){return Math.atan2(t.z,-t.x)}!function(t){const n=new Yn,r=new Yn,i=new Yn;for(let s=0;s<e.length;s+=3)l(e[s+0],n),l(e[s+1],r),l(e[s+2],i),o(n,r,i,t)}(r),function(t){const e=new Yn;for(let n=0;n<i.length;n+=3)e.x=i[n+0],e.y=i[n+1],e.z=i[n+2],e.normalize().multiplyScalar(t),i[n+0]=e.x,i[n+1]=e.y,i[n+2]=e.z}(n),function(){const t=new Yn;for(let n=0;n<i.length;n+=3){t.x=i[n+0],t.y=i[n+1],t.z=i[n+2];const r=h(t)/2/Math.PI+.5,o=(e=t,Math.atan2(-e.y,Math.sqrt(e.x*e.x+e.z*e.z))/Math.PI+.5);s.push(r,1-o)}var e;(function(){const t=new Yn,e=new Yn,n=new Yn,r=new Yn,o=new On,a=new On,l=new On;for(let u=0,p=0;u<i.length;u+=9,p+=6){t.set(i[u+0],i[u+1],i[u+2]),e.set(i[u+3],i[u+4],i[u+5]),n.set(i[u+6],i[u+7],i[u+8]),o.set(s[p+0],s[p+1]),a.set(s[p+2],s[p+3]),l.set(s[p+4],s[p+5]),r.copy(t).add(e).add(n).divideScalar(3);const d=h(r);c(o,p+0,t,d),c(a,p+2,e,d),c(l,p+4,n,d)}})(),function(){for(let t=0;t<s.length;t+=6){const e=s[t+0],n=s[t+2],r=s[t+4],i=Math.max(e,n,r),o=Math.min(e,n,r);i>.9&&o<.1&&(e<.2&&(s[t+0]+=1),n<.2&&(s[t+2]+=1),r<.2&&(s[t+4]+=1))}}()}(),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(i.slice(),3)),this.setAttribute("uv",new Ci(s,2)),0===r?this.computeVertexNormals():this.normalizeNormals()}}exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=Lu;class Ru extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2,r=1/n;super([-1,-1,-1,-1,-1,1,-1,1,-1,-1,1,1,1,-1,-1,1,-1,1,1,1,-1,1,1,1,0,-r,-n,0,-r,n,0,r,-n,0,r,n,-r,-n,0,-r,n,0,r,-n,0,r,n,0,-n,0,-r,n,0,-r,-n,0,r,n,0,r],[3,11,7,3,7,15,3,15,13,7,19,17,7,17,6,7,6,15,17,4,8,17,8,10,17,10,6,8,0,16,8,16,2,8,2,10,0,12,1,0,1,18,0,18,16,6,10,2,6,2,13,6,13,15,2,16,18,2,18,3,2,3,13,18,1,9,18,9,11,18,11,3,4,14,12,4,12,0,4,0,8,11,9,5,11,5,19,11,19,7,19,5,14,19,14,4,19,4,17,1,12,14,1,14,5,1,5,9],t,e),this.type="DodecahedronGeometry",this.parameters={radius:t,detail:e}}}exports.DodecahedronGeometry=exports.DodecahedronBufferGeometry=Ru;const Cu=new Yn,Pu=new Yn,Du=new Yn,Iu=new li;class Bu extends ki{constructor(t,e){if(super(),this.type="EdgesGeometry",this.parameters={thresholdAngle:e},e=void 0!==e?e:1,!0===t.isGeometry)return void console.error("THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const n=Math.pow(10,4),r=Math.cos(Fn.DEG2RAD*e),i=t.getIndex(),s=t.getAttribute("position"),o=i?i.count:s.count,a=[0,0,0],l=["a","b","c"],c=new Array(3),h={},u=[];for(let p=0;p<o;p+=3){i?(a[0]=i.getX(p),a[1]=i.getX(p+1),a[2]=i.getX(p+2)):(a[0]=p,a[1]=p+1,a[2]=p+2);const{a:t,b:e,c:o}=Iu;if(t.fromBufferAttribute(s,a[0]),e.fromBufferAttribute(s,a[1]),o.fromBufferAttribute(s,a[2]),Iu.getNormal(Du),c[0]=`${Math.round(t.x*n)},${Math.round(t.y*n)},${Math.round(t.z*n)}`,c[1]=`${Math.round(e.x*n)},${Math.round(e.y*n)},${Math.round(e.z*n)}`,c[2]=`${Math.round(o.x*n)},${Math.round(o.y*n)},${Math.round(o.z*n)}`,c[0]!==c[1]&&c[1]!==c[2]&&c[2]!==c[0])for(let n=0;n<3;n++){const t=(n+1)%3,e=c[n],i=c[t],s=Iu[l[n]],o=Iu[l[t]],p=`${e}_${i}`,d=`${i}_${e}`;d in h&&h[d]?(Du.dot(h[d].normal)<=r&&(u.push(s.x,s.y,s.z),u.push(o.x,o.y,o.z)),h[d]=null):p in h||(h[p]={index0:a[n],index1:a[t],normal:Du.clone()})}}for(const p in h)if(h[p]){const{index0:t,index1:e}=h[p];Cu.fromBufferAttribute(s,t),Pu.fromBufferAttribute(s,e),u.push(Cu.x,Cu.y,Cu.z),u.push(Pu.x,Pu.y,Pu.z)}this.setAttribute("position",new Ci(u,3))}}exports.EdgesGeometry=Bu;const Nu={triangulate:function(t,e,n){n=n||2;const r=e&&e.length,i=r?e[0]*n:t.length;let s=Fu(t,0,i,n,!0);const o=[];if(!s||s.next===s.prev)return o;let a,l,c,h,u,p,d;if(r&&(s=Vu(t,e,s,n)),t.length>80*n){a=c=t[0],l=h=t[1];for(let e=n;e<i;e+=n)(u=t[e])<a&&(a=u),(p=t[e+1])<l&&(l=p),u>c&&(c=u),p>h&&(h=p);d=0!==(d=Math.max(c-a,h-l))?1/d:0}return zu(s,o,n,a,l,d),o}};function Fu(t,e,n,r,i){let s,o;if(i===pp(t,e,n,r)>0)for(s=e;s<n;s+=r)o=cp(s,t[s],t[s+1],o);else for(s=n-r;s>=e;s-=r)o=cp(s,t[s],t[s+1],o);return o&&ep(o,o.next)&&(hp(o),o=o.next),o}function Ou(t,e){if(!t)return t;e||(e=t);let n,r=t;do{if(n=!1,r.steiner||!ep(r,r.next)&&0!==tp(r.prev,r,r.next))r=r.next;else{if(hp(r),(r=e=r.prev)===r.next)break;n=!0}}while(n||r!==e);return e}function 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i=t;do{null===i.z&&(i.z=Ju(i.x,i.y,e,n,r)),i.prevZ=i.prev,i.nextZ=i.next,i=i.next}while(i!==t);i.prevZ.nextZ=null,i.prevZ=null,Zu(i)}function Zu(t){let e,n,r,i,s,o,a,l,c=1;do{for(n=t,t=null,s=null,o=0;n;){for(o++,r=n,a=0,e=0;e<c&&(a++,r=r.nextZ);e++);for(l=c;a>0||l>0&&r;)0!==a&&(0===l||!r||n.z<=r.z)?(i=n,n=n.nextZ,a--):(i=r,r=r.nextZ,l--),s?s.nextZ=i:t=i,i.prevZ=s,s=i;n=r}s.nextZ=null,c*=2}while(o>1);return t}function Ju(t,e,n,r,i){return(t=1431655765&((t=858993459&((t=252645135&((t=16711935&((t=32767*(t-n)*i)|t<<8))|t<<4))|t<<2))|t<<1))|(e=1431655765&((e=858993459&((e=252645135&((e=16711935&((e=32767*(e-r)*i)|e<<8))|e<<4))|e<<2))|e<<1))<<1}function Qu(t){let e=t,n=t;do{(e.x<n.x||e.x===n.x&&e.y<n.y)&&(n=e),e=e.next}while(e!==t);return n}function Ku(t,e,n,r,i,s,o,a){return(i-o)*(e-a)-(t-o)*(s-a)>=0&&(t-o)*(r-a)-(n-o)*(e-a)>=0&&(n-o)*(s-a)-(i-o)*(r-a)>=0}function $u(t,e){return t.next.i!==e.i&&t.prev.i!==e.i&&!sp(t,e)&&(op(t,e)&&op(e,t)&&ap(t,e)&&(tp(t.prev,t,e.prev)||tp(t,e.prev,e))||ep(t,e)&&tp(t.prev,t,t.next)>0&&tp(e.prev,e,e.next)>0)}function tp(t,e,n){return(e.y-t.y)*(n.x-e.x)-(e.x-t.x)*(n.y-e.y)}function ep(t,e){return t.x===e.x&&t.y===e.y}function np(t,e,n,r){const i=ip(tp(t,e,n)),s=ip(tp(t,e,r)),o=ip(tp(n,r,t)),a=ip(tp(n,r,e));return i!==s&&o!==a||(!(0!==i||!rp(t,n,e))||(!(0!==s||!rp(t,r,e))||(!(0!==o||!rp(n,t,r))||!(0!==a||!rp(n,e,r)))))}function rp(t,e,n){return e.x<=Math.max(t.x,n.x)&&e.x>=Math.min(t.x,n.x)&&e.y<=Math.max(t.y,n.y)&&e.y>=Math.min(t.y,n.y)}function ip(t){return t>0?1:t<0?-1:0}function sp(t,e){let n=t;do{if(n.i!==t.i&&n.next.i!==t.i&&n.i!==e.i&&n.next.i!==e.i&&np(n,n.next,t,e))return!0;n=n.next}while(n!==t);return!1}function op(t,e){return tp(t.prev,t,t.next)<0?tp(t,e,t.next)>=0&&tp(t,t.prev,e)>=0:tp(t,e,t.prev)<0||tp(t,t.next,e)<0}function ap(t,e){let n=t,r=!1;const i=(t.x+e.x)/2,s=(t.y+e.y)/2;do{n.y>s!=n.next.y>s&&n.next.y!==n.y&&i<(n.next.x-n.x)*(s-n.y)/(n.next.y-n.y)+n.x&&(r=!r),n=n.next}while(n!==t);return r}function lp(t,e){const n=new up(t.i,t.x,t.y),r=new up(e.i,e.x,e.y),i=t.next,s=e.prev;return t.next=e,e.prev=t,n.next=i,i.prev=n,r.next=n,n.prev=r,s.next=r,r.prev=s,r}function cp(t,e,n,r){const i=new up(t,e,n);return r?(i.next=r.next,i.prev=r,r.next.prev=i,r.next=i):(i.prev=i,i.next=i),i}function hp(t){t.next.prev=t.prev,t.prev.next=t.next,t.prevZ&&(t.prevZ.nextZ=t.nextZ),t.nextZ&&(t.nextZ.prevZ=t.prevZ)}function up(t,e,n){this.i=t,this.x=e,this.y=n,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1}function pp(t,e,n,r){let i=0;for(let s=e,o=n-r;s<n;s+=r)i+=(t[o]-t[s])*(t[s+1]+t[o+1]),o=s;return i}const dp={area:function(t){const e=t.length;let n=0;for(let r=e-1,i=0;i<e;r=i++)n+=t[r].x*t[i].y-t[i].x*t[r].y;return.5*n},isClockWise:function(t){return dp.area(t)<0},triangulateShape:function(t,e){const n=[],r=[],i=[];mp(t),fp(n,t);let s=t.length;e.forEach(mp);for(let a=0;a<e.length;a++)r.push(s),s+=e[a].length,fp(n,e[a]);const o=Nu.triangulate(n,r);for(let a=0;a<o.length;a+=3)i.push(o.slice(a,a+3));return i}};function mp(t){const e=t.length;e>2&&t[e-1].equals(t[0])&&t.pop()}function fp(t,e){for(let n=0;n<e.length;n++)t.push(e[n].x),t.push(e[n].y)}exports.ShapeUtils=dp;class gp extends ki{constructor(t,e){super(),this.type="ExtrudeGeometry",this.parameters={shapes:t,options:e},t=Array.isArray(t)?t:[t];const n=this,r=[],i=[];for(let o=0,a=t.length;o<a;o++){s(t[o])}function s(t){const s=[],o=void 0!==e.curveSegments?e.curveSegments:12,a=void 0!==e.steps?e.steps:1;let l=void 0!==e.depth?e.depth:100,c=void 0===e.bevelEnabled||e.bevelEnabled,h=void 0!==e.bevelThickness?e.bevelThickness:6,u=void 0!==e.bevelSize?e.bevelSize:h-2,p=void 0!==e.bevelOffset?e.bevelOffset:0,d=void 0!==e.bevelSegments?e.bevelSegments:3;const m=e.extrudePath,f=void 0!==e.UVGenerator?e.UVGenerator:xp;void 0!==e.amount&&(console.warn("THREE.ExtrudeBufferGeometry: amount has been renamed to depth."),l=e.amount);let g,x,v,y,_,b=!1;m&&(g=m.getSpacedPoints(a),b=!0,c=!1,x=m.computeFrenetFrames(a,!1),v=new Yn,y=new Yn,_=new Yn),c||(d=0,h=0,u=0,p=0);const w=t.extractPoints(o);let M=w.shape;const S=w.holes;if(!dp.isClockWise(M)){M=M.reverse();for(let t=0,e=S.length;t<e;t++){const e=S[t];dp.isClockWise(e)&&(S[t]=e.reverse())}}const T=dp.triangulateShape(M,S),E=M;for(let e=0,n=S.length;e<n;e++){const t=S[e];M=M.concat(t)}function A(t,e,n){return e||console.error("THREE.ExtrudeGeometry: vec does not exist"),e.clone().multiplyScalar(n).add(t)}const L=M.length,R=T.length;function C(t,e,n){let r,i,s;const o=t.x-e.x,a=t.y-e.y,l=n.x-t.x,c=n.y-t.y,h=o*o+a*a,u=o*c-a*l;if(Math.abs(u)>Number.EPSILON){const u=Math.sqrt(h),p=Math.sqrt(l*l+c*c),d=e.x-a/u,m=e.y+o/u,f=((n.x-c/p-d)*c-(n.y+l/p-m)*l)/(o*c-a*l),g=(r=d+o*f-t.x)*r+(i=m+a*f-t.y)*i;if(g<=2)return new On(r,i);s=Math.sqrt(g/2)}else{let t=!1;o>Number.EPSILON?l>Number.EPSILON&&(t=!0):o<-Number.EPSILON?l<-Number.EPSILON&&(t=!0):Math.sign(a)===Math.sign(c)&&(t=!0),t?(r=-a,i=o,s=Math.sqrt(h)):(r=o,i=a,s=Math.sqrt(h/2))}return new On(r/s,i/s)}const P=[];for(let e=0,n=E.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),P[e]=C(E[e],E[r],E[i]);const D=[];let I,B=P.concat();for(let e=0,n=S.length;e<n;e++){const t=S[e];I=[];for(let e=0,n=t.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),I[e]=C(t[e],t[r],t[i]);D.push(I),B=B.concat(I)}for(let e=0;e<d;e++){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,-n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);O(i.x,i.y,-n)}}}const N=u+p;for(let e=0;e<L;e++){const t=c?A(M[e],B[e],N):M[e];b?(y.copy(x.normals[0]).multiplyScalar(t.x),v.copy(x.binormals[0]).multiplyScalar(t.y),_.copy(g[0]).add(y).add(v),O(_.x,_.y,_.z)):O(t.x,t.y,0)}for(let e=1;e<=a;e++)for(let t=0;t<L;t++){const n=c?A(M[t],B[t],N):M[t];b?(y.copy(x.normals[e]).multiplyScalar(n.x),v.copy(x.binormals[e]).multiplyScalar(n.y),_.copy(g[e]).add(y).add(v),O(_.x,_.y,_.z)):O(n.x,n.y,l/a*e)}for(let e=d-1;e>=0;e--){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,l+n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);b?O(i.x,i.y+g[a-1].y,g[a-1].x+n):O(i.x,i.y,l+n)}}}function F(t,e){let n=t.length;for(;--n>=0;){const r=n;let i=n-1;i<0&&(i=t.length-1);for(let t=0,n=a+2*d;t<n;t++){const n=L*t,s=L*(t+1);G(e+r+n,e+i+n,e+i+s,e+r+s)}}}function O(t,e,n){s.push(t),s.push(e),s.push(n)}function z(t,e,i){H(t),H(e),H(i);const s=r.length/3,o=f.generateTopUV(n,r,s-3,s-2,s-1);U(o[0]),U(o[1]),U(o[2])}function G(t,e,i,s){H(t),H(e),H(s),H(e),H(i),H(s);const o=r.length/3,a=f.generateSideWallUV(n,r,o-6,o-3,o-2,o-1);U(a[0]),U(a[1]),U(a[3]),U(a[1]),U(a[2]),U(a[3])}function H(t){r.push(s[3*t+0]),r.push(s[3*t+1]),r.push(s[3*t+2])}function U(t){i.push(t.x),i.push(t.y)}!function(){const t=r.length/3;if(c){let t=0,e=L*t;for(let n=0;n<R;n++){const t=T[n];z(t[2]+e,t[1]+e,t[0]+e)}e=L*(t=a+2*d);for(let n=0;n<R;n++){const t=T[n];z(t[0]+e,t[1]+e,t[2]+e)}}else{for(let t=0;t<R;t++){const e=T[t];z(e[2],e[1],e[0])}for(let t=0;t<R;t++){const e=T[t];z(e[0]+L*a,e[1]+L*a,e[2]+L*a)}}n.addGroup(t,r.length/3-t,0)}(),function(){const t=r.length/3;let e=0;F(E,e),e+=E.length;for(let n=0,r=S.length;n<r;n++){const t=S[n];F(t,e),e+=t.length}n.addGroup(t,r.length/3-t,1)}()}this.setAttribute("position",new Ci(r,3)),this.setAttribute("uv",new Ci(i,2)),this.computeVertexNormals()}toJSON(){const t=ki.prototype.toJSON.call(this);return vp(this.parameters.shapes,this.parameters.options,t)}}exports.ExtrudeGeometry=exports.ExtrudeBufferGeometry=gp;const xp={generateTopUV:function(t,e,n,r,i){const s=e[3*n],o=e[3*n+1],a=e[3*r],l=e[3*r+1],c=e[3*i],h=e[3*i+1];return[new On(s,o),new On(a,l),new On(c,h)]},generateSideWallUV:function(t,e,n,r,i,s){const o=e[3*n],a=e[3*n+1],l=e[3*n+2],c=e[3*r],h=e[3*r+1],u=e[3*r+2],p=e[3*i],d=e[3*i+1],m=e[3*i+2],f=e[3*s],g=e[3*s+1],x=e[3*s+2];return Math.abs(a-h)<.01?[new On(o,1-l),new On(c,1-u),new On(p,1-m),new On(f,1-x)]:[new On(a,1-l),new On(h,1-u),new On(d,1-m),new On(g,1-x)]}};function vp(t,e,n){if(n.shapes=[],Array.isArray(t))for(let r=0,i=t.length;r<i;r++){const e=t[r];n.shapes.push(e.uuid)}else n.shapes.push(t.uuid);return void 0!==e.extrudePath&&(n.options.extrudePath=e.extrudePath.toJSON()),n}class yp extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2;super([-1,n,0,1,n,0,-1,-n,0,1,-n,0,0,-1,n,0,1,n,0,-1,-n,0,1,-n,n,0,-1,n,0,1,-n,0,-1,-n,0,1],[0,11,5,0,5,1,0,1,7,0,7,10,0,10,11,1,5,9,5,11,4,11,10,2,10,7,6,7,1,8,3,9,4,3,4,2,3,2,6,3,6,8,3,8,9,4,9,5,2,4,11,6,2,10,8,6,7,9,8,1],t,e),this.type="IcosahedronGeometry",this.parameters={radius:t,detail:e}}}exports.IcosahedronGeometry=exports.IcosahedronBufferGeometry=yp;class _p extends ki{constructor(t,e=12,n=0,r=2*Math.PI){super(),this.type="LatheGeometry",this.parameters={points:t,segments:e,phiStart:n,phiLength:r},e=Math.floor(e),r=Fn.clamp(r,0,2*Math.PI);const i=[],s=[],o=[],a=1/e,l=new Yn,c=new On;for(let h=0;h<=e;h++){const i=n+h*a*r,u=Math.sin(i),p=Math.cos(i);for(let n=0;n<=t.length-1;n++)l.x=t[n].x*u,l.y=t[n].y,l.z=t[n].x*p,s.push(l.x,l.y,l.z),c.x=h/e,c.y=n/(t.length-1),o.push(c.x,c.y)}for(let h=0;h<e;h++)for(let e=0;e<t.length-1;e++){const n=e+h*t.length,r=n,s=n+t.length,o=n+t.length+1,a=n+1;i.push(r,s,a),i.push(s,o,a)}if(this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2)),this.computeVertexNormals(),r===2*Math.PI){const n=this.attributes.normal.array,r=new Yn,i=new Yn,s=new Yn,o=e*t.length*3;for(let e=0,a=0;e<t.length;e++,a+=3)r.x=n[a+0],r.y=n[a+1],r.z=n[a+2],i.x=n[o+a+0],i.y=n[o+a+1],i.z=n[o+a+2],s.addVectors(r,i).normalize(),n[a+0]=n[o+a+0]=s.x,n[a+1]=n[o+a+1]=s.y,n[a+2]=n[o+a+2]=s.z}}}exports.LatheGeometry=exports.LatheBufferGeometry=_p;class bp extends Lu{constructor(t=1,e=0){super([1,0,0,-1,0,0,0,1,0,0,-1,0,0,0,1,0,0,-1],[0,2,4,0,4,3,0,3,5,0,5,2,1,2,5,1,5,3,1,3,4,1,4,2],t,e),this.type="OctahedronGeometry",this.parameters={radius:t,detail:e}}}function wp(t,e,n){ki.call(this),this.type="ParametricGeometry",this.parameters={func:t,slices:e,stacks:n};const r=[],i=[],s=[],o=[],a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=new Yn;t.length<3&&console.error("THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.");const p=e+1;for(let d=0;d<=n;d++){const r=d/n;for(let n=0;n<=e;n++){const p=n/e;t(p,r,l),i.push(l.x,l.y,l.z),p-1e-5>=0?(t(p-1e-5,r,c),h.subVectors(l,c)):(t(p+1e-5,r,c),h.subVectors(c,l)),r-1e-5>=0?(t(p,r-1e-5,c),u.subVectors(l,c)):(t(p,r+1e-5,c),u.subVectors(c,l)),a.crossVectors(h,u).normalize(),s.push(a.x,a.y,a.z),o.push(p,r)}}for(let d=0;d<n;d++)for(let t=0;t<e;t++){const e=d*p+t,n=d*p+t+1,i=(d+1)*p+t+1,s=(d+1)*p+t;r.push(e,n,s),r.push(n,i,s)}this.setIndex(r),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2))}exports.OctahedronGeometry=exports.OctahedronBufferGeometry=bp,wp.prototype=Object.create(ki.prototype),wp.prototype.constructor=wp;class Mp extends ki{constructor(t=.5,e=1,n=8,r=1,i=0,s=2*Math.PI){super(),this.type="RingGeometry",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:n,phiSegments:r,thetaStart:i,thetaLength:s},n=Math.max(3,n);const o=[],a=[],l=[],c=[];let h=t;const u=(e-t)/(r=Math.max(1,r)),p=new Yn,d=new On;for(let m=0;m<=r;m++){for(let t=0;t<=n;t++){const r=i+t/n*s;p.x=h*Math.cos(r),p.y=h*Math.sin(r),a.push(p.x,p.y,p.z),l.push(0,0,1),d.x=(p.x/e+1)/2,d.y=(p.y/e+1)/2,c.push(d.x,d.y)}h+=u}for(let m=0;m<r;m++){const t=m*(n+1);for(let e=0;e<n;e++){const r=e+t,i=r,s=r+n+1,a=r+n+2,l=r+1;o.push(i,s,l),o.push(s,a,l)}}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.RingGeometry=exports.RingBufferGeometry=Mp;class Sp extends ki{constructor(t,e=12){super(),this.type="ShapeGeometry",this.parameters={shapes:t,curveSegments:e};const n=[],r=[],i=[],s=[];let o=0,a=0;if(!1===Array.isArray(t))l(t);else for(let c=0;c<t.length;c++)l(t[c]),this.addGroup(o,a,c),o+=a,a=0;function l(t){const o=r.length/3,l=t.extractPoints(e);let c=l.shape;const h=l.holes;!1===dp.isClockWise(c)&&(c=c.reverse());for(let e=0,n=h.length;e<n;e++){const t=h[e];!0===dp.isClockWise(t)&&(h[e]=t.reverse())}const u=dp.triangulateShape(c,h);for(let e=0,n=h.length;e<n;e++){const t=h[e];c=c.concat(t)}for(let e=0,n=c.length;e<n;e++){const t=c[e];r.push(t.x,t.y,0),i.push(0,0,1),s.push(t.x,t.y)}for(let e=0,r=u.length;e<r;e++){const t=u[e],r=t[0]+o,i=t[1]+o,s=t[2]+o;n.push(r,i,s),a+=3}}this.setIndex(n),this.setAttribute("position",new Ci(r,3)),this.setAttribute("normal",new Ci(i,3)),this.setAttribute("uv",new Ci(s,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return Tp(this.parameters.shapes,t)}}function Tp(t,e){if(e.shapes=[],Array.isArray(t))for(let n=0,r=t.length;n<r;n++){const r=t[n];e.shapes.push(r.uuid)}else e.shapes.push(t.uuid);return e}exports.ShapeGeometry=exports.ShapeBufferGeometry=Sp;class Ep extends ki{constructor(t=1,e=8,n=6,r=0,i=2*Math.PI,s=0,o=Math.PI){super(),this.type="SphereGeometry",this.parameters={radius:t,widthSegments:e,heightSegments:n,phiStart:r,phiLength:i,thetaStart:s,thetaLength:o},e=Math.max(3,Math.floor(e)),n=Math.max(2,Math.floor(n));const a=Math.min(s+o,Math.PI);let l=0;const c=[],h=new Yn,u=new Yn,p=[],d=[],m=[],f=[];for(let g=0;g<=n;g++){const p=[],x=g/n;let v=0;0==g&&0==s?v=.5/e:g==n&&a==Math.PI&&(v=-.5/e);for(let n=0;n<=e;n++){const a=n/e;h.x=-t*Math.cos(r+a*i)*Math.sin(s+x*o),h.y=t*Math.cos(s+x*o),h.z=t*Math.sin(r+a*i)*Math.sin(s+x*o),d.push(h.x,h.y,h.z),u.copy(h).normalize(),m.push(u.x,u.y,u.z),f.push(a+v,1-x),p.push(l++)}c.push(p)}for(let g=0;g<n;g++)for(let t=0;t<e;t++){const e=c[g][t+1],r=c[g][t],i=c[g+1][t],o=c[g+1][t+1];(0!==g||s>0)&&p.push(e,r,o),(g!==n-1||a<Math.PI)&&p.push(r,i,o)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.SphereGeometry=exports.SphereBufferGeometry=Ep;class Ap extends Lu{constructor(t=1,e=0){super([1,1,1,-1,-1,1,-1,1,-1,1,-1,-1],[2,1,0,0,3,2,1,3,0,2,3,1],t,e),this.type="TetrahedronGeometry",this.parameters={radius:t,detail:e}}}exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=Ap;class Lp extends gp{constructor(t,e={}){const n=e.font;if(!n||!n.isFont)return console.error("THREE.TextGeometry: font parameter is not an instance of THREE.Font."),new ki;const r=n.generateShapes(t,e.size);e.depth=void 0!==e.height?e.height:50,void 0===e.bevelThickness&&(e.bevelThickness=10),void 0===e.bevelSize&&(e.bevelSize=8),void 0===e.bevelEnabled&&(e.bevelEnabled=!1),super(r,e),this.type="TextGeometry"}}exports.TextGeometry=exports.TextBufferGeometry=Lp;class Rp extends ki{constructor(t=1,e=.4,n=8,r=6,i=2*Math.PI){super(),this.type="TorusGeometry",this.parameters={radius:t,tube:e,radialSegments:n,tubularSegments:r,arc:i},n=Math.floor(n),r=Math.floor(r);const s=[],o=[],a=[],l=[],c=new Yn,h=new Yn,u=new Yn;for(let p=0;p<=n;p++)for(let s=0;s<=r;s++){const d=s/r*i,m=p/n*Math.PI*2;h.x=(t+e*Math.cos(m))*Math.cos(d),h.y=(t+e*Math.cos(m))*Math.sin(d),h.z=e*Math.sin(m),o.push(h.x,h.y,h.z),c.x=t*Math.cos(d),c.y=t*Math.sin(d),u.subVectors(h,c).normalize(),a.push(u.x,u.y,u.z),l.push(s/r),l.push(p/n)}for(let p=1;p<=n;p++)for(let t=1;t<=r;t++){const e=(r+1)*p+t-1,n=(r+1)*(p-1)+t-1,i=(r+1)*(p-1)+t,o=(r+1)*p+t;s.push(e,n,o),s.push(n,i,o)}this.setIndex(s),this.setAttribute("position",new Ci(o,3)),this.setAttribute("normal",new Ci(a,3)),this.setAttribute("uv",new Ci(l,2))}}exports.TorusGeometry=exports.TorusBufferGeometry=Rp;class Cp extends ki{constructor(t=1,e=.4,n=64,r=8,i=2,s=3){super(),this.type="TorusKnotGeometry",this.parameters={radius:t,tube:e,tubularSegments:n,radialSegments:r,p:i,q:s},n=Math.floor(n),r=Math.floor(r);const o=[],a=[],l=[],c=[],h=new Yn,u=new Yn,p=new Yn,d=new Yn,m=new Yn,f=new Yn,g=new Yn;for(let v=0;v<=n;++v){const o=v/n*i*Math.PI*2;x(o,i,s,t,p),x(o+.01,i,s,t,d),f.subVectors(d,p),g.addVectors(d,p),m.crossVectors(f,g),g.crossVectors(m,f),m.normalize(),g.normalize();for(let t=0;t<=r;++t){const i=t/r*Math.PI*2,s=-e*Math.cos(i),o=e*Math.sin(i);h.x=p.x+(s*g.x+o*m.x),h.y=p.y+(s*g.y+o*m.y),h.z=p.z+(s*g.z+o*m.z),a.push(h.x,h.y,h.z),u.subVectors(h,p).normalize(),l.push(u.x,u.y,u.z),c.push(v/n),c.push(t/r)}}for(let v=1;v<=n;v++)for(let t=1;t<=r;t++){const e=(r+1)*(v-1)+(t-1),n=(r+1)*v+(t-1),i=(r+1)*v+t,s=(r+1)*(v-1)+t;o.push(e,n,s),o.push(n,i,s)}function x(t,e,n,r,i){const s=Math.cos(t),o=Math.sin(t),a=n/e*t,l=Math.cos(a);i.x=r*(2+l)*.5*s,i.y=r*(2+l)*o*.5,i.z=r*Math.sin(a)*.5}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=Cp;class Pp extends ki{constructor(t,e=64,n=1,r=8,i=!1){super(),this.type="TubeGeometry",this.parameters={path:t,tubularSegments:e,radius:n,radialSegments:r,closed:i};const s=t.computeFrenetFrames(e,i);this.tangents=s.tangents,this.normals=s.normals,this.binormals=s.binormals;const o=new Yn,a=new Yn,l=new On;let c=new Yn;const h=[],u=[],p=[],d=[];function m(i){c=t.getPointAt(i/e,c);const l=s.normals[i],p=s.binormals[i];for(let t=0;t<=r;t++){const e=t/r*Math.PI*2,i=Math.sin(e),s=-Math.cos(e);a.x=s*l.x+i*p.x,a.y=s*l.y+i*p.y,a.z=s*l.z+i*p.z,a.normalize(),u.push(a.x,a.y,a.z),o.x=c.x+n*a.x,o.y=c.y+n*a.y,o.z=c.z+n*a.z,h.push(o.x,o.y,o.z)}}!function(){for(let t=0;t<e;t++)m(t);m(!1===i?e:0),function(){for(let t=0;t<=e;t++)for(let n=0;n<=r;n++)l.x=t/e,l.y=n/r,p.push(l.x,l.y)}(),function(){for(let t=1;t<=e;t++)for(let e=1;e<=r;e++){const n=(r+1)*(t-1)+(e-1),i=(r+1)*t+(e-1),s=(r+1)*t+e,o=(r+1)*(t-1)+e;d.push(n,i,o),d.push(i,s,o)}}()}(),this.setIndex(d),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return t.path=this.parameters.path.toJSON(),t}}exports.TubeGeometry=exports.TubeBufferGeometry=Pp;class Dp extends ki{constructor(t){if(super(),this.type="WireframeGeometry",!0===t.isGeometry)return void console.error("THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const e=[],n=[0,0],r={},i=new Yn;if(null!==t.index){const s=t.attributes.position,o=t.index;let a=t.groups;0===a.length&&(a=[{start:0,count:o.count,materialIndex:0}]);for(let t=0,e=a.length;t<e;++t){const e=a[t],i=e.start;for(let t=i,s=i+e.count;t<s;t+=3)for(let e=0;e<3;e++){const i=o.getX(t+e),s=o.getX(t+(e+1)%3);n[0]=Math.min(i,s),n[1]=Math.max(i,s);const a=n[0]+","+n[1];void 0===r[a]&&(r[a]={index1:n[0],index2:n[1]})}}for(const t in r){const n=r[t];i.fromBufferAttribute(s,n.index1),e.push(i.x,i.y,i.z),i.fromBufferAttribute(s,n.index2),e.push(i.x,i.y,i.z)}}else{const n=t.attributes.position;for(let t=0,r=n.count/3;t<r;t++)for(let s=0;s<3;s++){const r=3*t+s;i.fromBufferAttribute(n,r),e.push(i.x,i.y,i.z);const o=3*t+(s+1)%3;i.fromBufferAttribute(n,o),e.push(i.x,i.y,i.z)}}this.setAttribute("position",new Ci(e,3))}}exports.WireframeGeometry=Dp;var Ip=Object.freeze({__proto__:null,BoxGeometry:cs,BoxBufferGeometry:cs,CircleGeometry:Tu,CircleBufferGeometry:Tu,ConeGeometry:Au,ConeBufferGeometry:Au,CylinderGeometry:Eu,CylinderBufferGeometry:Eu,DodecahedronGeometry:Ru,DodecahedronBufferGeometry:Ru,EdgesGeometry:Bu,ExtrudeGeometry:gp,ExtrudeBufferGeometry:gp,IcosahedronGeometry:yp,IcosahedronBufferGeometry:yp,LatheGeometry:_p,LatheBufferGeometry:_p,OctahedronGeometry:bp,OctahedronBufferGeometry:bp,ParametricGeometry:wp,ParametricBufferGeometry:wp,PlaneGeometry:Rs,PlaneBufferGeometry:Rs,PolyhedronGeometry:Lu,PolyhedronBufferGeometry:Lu,RingGeometry:Mp,RingBufferGeometry:Mp,ShapeGeometry:Sp,ShapeBufferGeometry:Sp,SphereGeometry:Ep,SphereBufferGeometry:Ep,TetrahedronGeometry:Ap,TetrahedronBufferGeometry:Ap,TextGeometry:Lp,TextBufferGeometry:Lp,TorusGeometry:Rp,TorusBufferGeometry:Rp,TorusKnotGeometry:Cp,TorusKnotBufferGeometry:Cp,TubeGeometry:Pp,TubeBufferGeometry:Pp,WireframeGeometry:Dp});class Bp extends hi{constructor(t){super(),this.type="ShadowMaterial",this.color=new xi(0),this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this}}exports.ShadowMaterial=Bp,Bp.prototype.isShadowMaterial=!0;class Np extends fs{constructor(t){super(t),this.type="RawShaderMaterial"}}function Fp(t){hi.call(this),this.defines={STANDARD:""},this.type="MeshStandardMaterial",this.color=new xi(16777215),this.roughness=1,this.metalness=0,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapIntensity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.vertexTangents=!1,this.setValues(t)}function Op(t){Fp.call(this),this.defines={STANDARD:"",PHYSICAL:""},this.type="MeshPhysicalMaterial",this.clearcoat=0,this.clearcoatMap=null,this.clearcoatRoughness=0,this.clearcoatRoughnessMap=null,this.clearcoatNormalScale=new On(1,1),this.clearcoatNormalMap=null,this.reflectivity=.5,Object.defineProperty(this,"ior",{get:function(){return(1+.4*this.reflectivity)/(1-.4*this.reflectivity)},set:function(t){this.reflectivity=Fn.clamp(2.5*(t-1)/(t+1),0,1)}}),this.sheen=null,this.transmission=0,this.transmissionMap=null,this.setValues(t)}exports.RawShaderMaterial=Np,Np.prototype.isRawShaderMaterial=!0,Fp.prototype=Object.create(hi.prototype),Fp.prototype.constructor=Fp,Fp.prototype.isMeshStandardMaterial=!0,Fp.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.defines={STANDARD:""},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapIntensity=t.envMapIntensity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this.vertexTangents=t.vertexTangents,this},Op.prototype=Object.create(Fp.prototype),Op.prototype.constructor=Op,Op.prototype.isMeshPhysicalMaterial=!0,Op.prototype.copy=function(t){return Fp.prototype.copy.call(this,t),this.defines={STANDARD:"",PHYSICAL:""},this.clearcoat=t.clearcoat,this.clearcoatMap=t.clearcoatMap,this.clearcoatRoughness=t.clearcoatRoughness,this.clearcoatRoughnessMap=t.clearcoatRoughnessMap,this.clearcoatNormalMap=t.clearcoatNormalMap,this.clearcoatNormalScale.copy(t.clearcoatNormalScale),this.reflectivity=t.reflectivity,t.sheen?this.sheen=(this.sheen||new xi).copy(t.sheen):this.sheen=null,this.transmission=t.transmission,this.transmissionMap=t.transmissionMap,this};class zp extends hi{constructor(t){super(),this.type="MeshPhongMaterial",this.color=new xi(16777215),this.specular=new xi(1118481),this.shininess=30,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.specular.copy(t.specular),this.shininess=t.shininess,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshPhongMaterial=zp,zp.prototype.isMeshPhongMaterial=!0;class Gp extends hi{constructor(t){super(),this.defines={TOON:""},this.type="MeshToonMaterial",this.color=new xi(16777215),this.map=null,this.gradientMap=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.gradientMap=t.gradientMap,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshToonMaterial=Gp,Gp.prototype.isMeshToonMaterial=!0;class Hp extends hi{constructor(t){super(),this.type="MeshNormalMaterial",this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshNormalMaterial=Hp,Hp.prototype.isMeshNormalMaterial=!0;class Up extends hi{constructor(t){super(),this.type="MeshLambertMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshLambertMaterial=Up,Up.prototype.isMeshLambertMaterial=!0;class kp extends hi{constructor(t){super(),this.defines={MATCAP:""},this.type="MeshMatcapMaterial",this.color=new xi(16777215),this.matcap=null,this.map=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.defines={MATCAP:""},this.color.copy(t.color),this.matcap=t.matcap,this.map=t.map,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshMatcapMaterial=kp,kp.prototype.isMeshMatcapMaterial=!0;class Vp extends ru{constructor(t){super(),this.type="LineDashedMaterial",this.scale=1,this.dashSize=3,this.gapSize=1,this.setValues(t)}copy(t){return super.copy(t),this.scale=t.scale,this.dashSize=t.dashSize,this.gapSize=t.gapSize,this}}exports.LineDashedMaterial=Vp,Vp.prototype.isLineDashedMaterial=!0;var Wp=Object.freeze({__proto__:null,ShadowMaterial:Bp,SpriteMaterial:Mh,RawShaderMaterial:Np,ShaderMaterial:fs,PointsMaterial:mu,MeshPhysicalMaterial:Op,MeshStandardMaterial:Fp,MeshPhongMaterial:zp,MeshToonMaterial:Gp,MeshNormalMaterial:Hp,MeshLambertMaterial:Up,MeshDepthMaterial:eh,MeshDistanceMaterial:nh,MeshBasicMaterial:vi,MeshMatcapMaterial:kp,LineDashedMaterial:Vp,LineBasicMaterial:ru,Material:hi});const jp={arraySlice:function(t,e,n){return jp.isTypedArray(t)?new t.constructor(t.subarray(e,void 0!==n?n:t.length)):t.slice(e,n)},convertArray:function(t,e,n){return!t||!n&&t.constructor===e?t:"number"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)},isTypedArray:function(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)},getKeyframeOrder:function(t){const e=t.length,n=new Array(e);for(let r=0;r!==e;++r)n[r]=r;return n.sort(function(e,n){return t[e]-t[n]}),n},sortedArray:function(t,e,n){const r=t.length,i=new t.constructor(r);for(let s=0,o=0;o!==r;++s){const r=n[s]*e;for(let n=0;n!==e;++n)i[o++]=t[r+n]}return i},flattenJSON:function(t,e,n,r){let i=1,s=t[0];for(;void 0!==s&&void 0===s[r];)s=t[i++];if(void 0===s)return;let o=s[r];if(void 0!==o)if(Array.isArray(o))do{void 0!==(o=s[r])&&(e.push(s.time),n.push.apply(n,o)),s=t[i++]}while(void 0!==s);else if(void 0!==o.toArray)do{void 0!==(o=s[r])&&(e.push(s.time),o.toArray(n,n.length)),s=t[i++]}while(void 0!==s);else do{void 0!==(o=s[r])&&(e.push(s.time),n.push(o)),s=t[i++]}while(void 0!==s)},subclip:function(t,e,n,r,i=30){const s=t.clone();s.name=e;const o=[];for(let l=0;l<s.tracks.length;++l){const t=s.tracks[l],e=t.getValueSize(),a=[],c=[];for(let s=0;s<t.times.length;++s){const o=t.times[s]*i;if(!(o<n||o>=r)){a.push(t.times[s]);for(let n=0;n<e;++n)c.push(t.values[s*e+n])}}0!==a.length&&(t.times=jp.convertArray(a,t.times.constructor),t.values=jp.convertArray(c,t.values.constructor),o.push(t))}s.tracks=o;let a=1/0;for(let l=0;l<s.tracks.length;++l)a>s.tracks[l].times[0]&&(a=s.tracks[l].times[0]);for(let l=0;l<s.tracks.length;++l)s.tracks[l].shift(-1*a);return s.resetDuration(),s},makeClipAdditive:function(t,e=0,n=t,r=30){r<=0&&(r=30);const i=n.tracks.length,s=e/r;for(let o=0;o<i;++o){const e=n.tracks[o],r=e.ValueTypeName;if("bool"===r||"string"===r)continue;const i=t.tracks.find(function(t){return t.name===e.name&&t.ValueTypeName===r});if(void 0===i)continue;let a=0;const l=e.getValueSize();e.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(a=l/3);let c=0;const h=i.getValueSize();i.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(c=h/3);const u=e.times.length-1;let p;if(s<=e.times[0]){const t=a,n=l-a;p=jp.arraySlice(e.values,t,n)}else if(s>=e.times[u]){const t=u*l+a,n=t+l-a;p=jp.arraySlice(e.values,t,n)}else{const t=e.createInterpolant(),n=a,r=l-a;t.evaluate(s),p=jp.arraySlice(t.resultBuffer,n,r)}if("quaternion"===r){(new Xn).fromArray(p).normalize().conjugate().toArray(p)}const d=i.times.length;for(let t=0;t<d;++t){const e=t*h+c;if("quaternion"===r)Xn.multiplyQuaternionsFlat(i.values,e,p,0,i.values,e);else{const t=h-2*c;for(let n=0;n<t;++n)i.values[e+n]-=p[n]}}}return t.blendMode=Ve,t}};function qp(t,e,n,r){this.parameterPositions=t,this._cachedIndex=0,this.resultBuffer=void 0!==r?r:new e.constructor(n),this.sampleValues=e,this.valueSize=n}function Xp(t,e,n,r){qp.call(this,t,e,n,r),this._weightPrev=-0,this._offsetPrev=-0,this._weightNext=-0,this._offsetNext=-0}function Yp(t,e,n,r){qp.call(this,t,e,n,r)}function Zp(t,e,n,r){qp.call(this,t,e,n,r)}exports.AnimationUtils=jp,Object.assign(qp.prototype,{evaluate:function(t){const e=this.parameterPositions;let n=this._cachedIndex,r=e[n],i=e[n-1];t:{e:{let s;n:{r:if(!(t<r)){for(let s=n+2;;){if(void 0===r){if(t<i)break r;return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,t,i)}if(n===s)break;if(i=r,t<(r=e[++n]))break e}s=e.length;break n}if(t>=i)break t;{const o=e[1];t<o&&(n=2,i=o);for(let s=n-2;;){if(void 0===i)return this._cachedIndex=0,this.beforeStart_(0,t,r);if(n===s)break;if(r=i,t>=(i=e[--n-1]))break e}s=n,n=0}}for(;n<s;){const r=n+s>>>1;t<e[r]?s=r:n=r+1}if(r=e[n],void 0===(i=e[n-1]))return this._cachedIndex=0,this.beforeStart_(0,t,r);if(void 0===r)return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,i,t)}this._cachedIndex=n,this.intervalChanged_(n,i,r)}return this.interpolate_(n,i,t,r)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||this.DefaultSettings_},copySampleValue_:function(t){const e=this.resultBuffer,n=this.sampleValues,r=this.valueSize,i=t*r;for(let s=0;s!==r;++s)e[s]=n[i+s];return e},interpolate_:function(){throw new Error("call to abstract method")},intervalChanged_:function(){}}),Object.assign(qp.prototype,{beforeStart_:qp.prototype.copySampleValue_,afterEnd_:qp.prototype.copySampleValue_}),Xp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Xp,DefaultSettings_:{endingStart:Ge,endingEnd:Ge},intervalChanged_:function(t,e,n){const r=this.parameterPositions;let i=t-2,s=t+1,o=r[i],a=r[s];if(void 0===o)switch(this.getSettings_().endingStart){case He:i=t,o=2*e-n;break;case Ue:o=e+r[i=r.length-2]-r[i+1];break;default:i=t,o=n}if(void 0===a)switch(this.getSettings_().endingEnd){case He:s=t,a=2*n-e;break;case Ue:s=1,a=n+r[1]-r[0];break;default:s=t-1,a=e}const l=.5*(n-e),c=this.valueSize;this._weightPrev=l/(e-o),this._weightNext=l/(a-n),this._offsetPrev=i*c,this._offsetNext=s*c},interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=this._offsetPrev,h=this._offsetNext,u=this._weightPrev,p=this._weightNext,d=(n-e)/(r-e),m=d*d,f=m*d,g=-u*f+2*u*m-u*d,x=(1+u)*f+(-1.5-2*u)*m+(-.5+u)*d+1,v=(-1-p)*f+(1.5+p)*m+.5*d,y=p*f-p*m;for(let _=0;_!==o;++_)i[_]=g*s[c+_]+x*s[l+_]+v*s[a+_]+y*s[h+_];return i}}),Yp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Yp,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=(n-e)/(r-e),h=1-c;for(let u=0;u!==o;++u)i[u]=s[l+u]*h+s[a+u]*c;return i}}),Zp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Zp,interpolate_:function(t){return this.copySampleValue_(t-1)}});class Jp{constructor(t,e,n,r){if(void 0===t)throw new Error("THREE.KeyframeTrack: track name is undefined");if(void 0===e||0===e.length)throw new Error("THREE.KeyframeTrack: no keyframes in track named "+t);this.name=t,this.times=jp.convertArray(e,this.TimeBufferType),this.values=jp.convertArray(n,this.ValueBufferType),this.setInterpolation(r||this.DefaultInterpolation)}static toJSON(t){const e=t.constructor;let n;if(e.toJSON!==this.toJSON)n=e.toJSON(t);else{n={name:t.name,times:jp.convertArray(t.times,Array),values:jp.convertArray(t.values,Array)};const e=t.getInterpolation();e!==t.DefaultInterpolation&&(n.interpolation=e)}return n.type=t.ValueTypeName,n}InterpolantFactoryMethodDiscrete(t){return new Zp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodLinear(t){return new Yp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodSmooth(t){return new Xp(this.times,this.values,this.getValueSize(),t)}setInterpolation(t){let e;switch(t){case Fe:e=this.InterpolantFactoryMethodDiscrete;break;case Oe:e=this.InterpolantFactoryMethodLinear;break;case ze:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){const e="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(e);this.setInterpolation(this.DefaultInterpolation)}return console.warn("THREE.KeyframeTrack:",e),this}return this.createInterpolant=e,this}getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return Fe;case this.InterpolantFactoryMethodLinear:return Oe;case this.InterpolantFactoryMethodSmooth:return ze}}getValueSize(){return this.values.length/this.times.length}shift(t){if(0!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]+=t}return this}scale(t){if(1!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]*=t}return this}trim(t,e){const n=this.times,r=n.length;let i=0,s=r-1;for(;i!==r&&n[i]<t;)++i;for(;-1!==s&&n[s]>e;)--s;if(++s,0!==i||s!==r){i>=s&&(i=(s=Math.max(s,1))-1);const t=this.getValueSize();this.times=jp.arraySlice(n,i,s),this.values=jp.arraySlice(this.values,i*t,s*t)}return this}validate(){let t=!0;const e=this.getValueSize();e-Math.floor(e)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),t=!1);const n=this.times,r=this.values,i=n.length;0===i&&(console.error("THREE.KeyframeTrack: Track is empty.",this),t=!1);let s=null;for(let o=0;o!==i;o++){const e=n[o];if("number"==typeof e&&isNaN(e)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,o,e),t=!1;break}if(null!==s&&s>e){console.error("THREE.KeyframeTrack: Out of order keys.",this,o,e,s),t=!1;break}s=e}if(void 0!==r&&jp.isTypedArray(r))for(let o=0,a=r.length;o!==a;++o){const e=r[o];if(isNaN(e)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,o,e),t=!1;break}}return t}optimize(){const t=jp.arraySlice(this.times),e=jp.arraySlice(this.values),n=this.getValueSize(),r=this.getInterpolation()===ze,i=t.length-1;let s=1;for(let o=1;o<i;++o){let i=!1;const a=t[o];if(a!==t[o+1]&&(1!==o||a!==t[0]))if(r)i=!0;else{const t=o*n,r=t-n,s=t+n;for(let o=0;o!==n;++o){const n=e[t+o];if(n!==e[r+o]||n!==e[s+o]){i=!0;break}}}if(i){if(o!==s){t[s]=t[o];const r=o*n,i=s*n;for(let t=0;t!==n;++t)e[i+t]=e[r+t]}++s}}if(i>0){t[s]=t[i];for(let t=i*n,r=s*n,o=0;o!==n;++o)e[r+o]=e[t+o];++s}return s!==t.length?(this.times=jp.arraySlice(t,0,s),this.values=jp.arraySlice(e,0,s*n)):(this.times=t,this.values=e),this}clone(){const t=jp.arraySlice(this.times,0),e=jp.arraySlice(this.values,0),n=new(0,this.constructor)(this.name,t,e);return n.createInterpolant=this.createInterpolant,n}}exports.KeyframeTrack=Jp,Jp.prototype.TimeBufferType=Float32Array,Jp.prototype.ValueBufferType=Float32Array,Jp.prototype.DefaultInterpolation=Oe;class Qp extends Jp{}exports.BooleanKeyframeTrack=Qp,Qp.prototype.ValueTypeName="bool",Qp.prototype.ValueBufferType=Array,Qp.prototype.DefaultInterpolation=Fe,Qp.prototype.InterpolantFactoryMethodLinear=void 0,Qp.prototype.InterpolantFactoryMethodSmooth=void 0;class Kp extends Jp{}exports.ColorKeyframeTrack=Kp,Kp.prototype.ValueTypeName="color";class $p extends Jp{}function td(t,e,n,r){qp.call(this,t,e,n,r)}exports.NumberKeyframeTrack=$p,$p.prototype.ValueTypeName="number",td.prototype=Object.assign(Object.create(qp.prototype),{constructor:td,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=(n-e)/(r-e);let l=t*o;for(let c=l+o;l!==c;l+=4)Xn.slerpFlat(i,0,s,l-o,s,l,a);return i}});class ed extends Jp{InterpolantFactoryMethodLinear(t){return new td(this.times,this.values,this.getValueSize(),t)}}exports.QuaternionKeyframeTrack=ed,ed.prototype.ValueTypeName="quaternion",ed.prototype.DefaultInterpolation=Oe,ed.prototype.InterpolantFactoryMethodSmooth=void 0;class nd extends Jp{}exports.StringKeyframeTrack=nd,nd.prototype.ValueTypeName="string",nd.prototype.ValueBufferType=Array,nd.prototype.DefaultInterpolation=Fe,nd.prototype.InterpolantFactoryMethodLinear=void 0,nd.prototype.InterpolantFactoryMethodSmooth=void 0;class rd extends Jp{}exports.VectorKeyframeTrack=rd,rd.prototype.ValueTypeName="vector";class id{constructor(t,e=-1,n,r=ke){this.name=t,this.tracks=n,this.duration=e,this.blendMode=r,this.uuid=Fn.generateUUID(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],n=t.tracks,r=1/(t.fps||1);for(let s=0,o=n.length;s!==o;++s)e.push(od(n[s]).scale(r));const i=new this(t.name,t.duration,e,t.blendMode);return i.uuid=t.uuid,i}static toJSON(t){const e=[],n=t.tracks,r={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let i=0,s=n.length;i!==s;++i)e.push(Jp.toJSON(n[i]));return r}static CreateFromMorphTargetSequence(t,e,n,r){const i=e.length,s=[];for(let o=0;o<i;o++){let t=[],a=[];t.push((o+i-1)%i,o,(o+1)%i),a.push(0,1,0);const l=jp.getKeyframeOrder(t);t=jp.sortedArray(t,1,l),a=jp.sortedArray(a,1,l),r||0!==t[0]||(t.push(i),a.push(a[0])),s.push(new $p(".morphTargetInfluences["+e[o].name+"]",t,a).scale(1/n))}return new this(t,-1,s)}static findByName(t,e){let n=t;if(!Array.isArray(t)){const e=t;n=e.geometry&&e.geometry.animations||e.animations}for(let r=0;r<n.length;r++)if(n[r].name===e)return n[r];return null}static CreateClipsFromMorphTargetSequences(t,e,n){const r={},i=/^([\w-]*?)([\d]+)$/;for(let o=0,a=t.length;o<a;o++){const e=t[o],n=e.name.match(i);if(n&&n.length>1){const t=n[1];let i=r[t];i||(r[t]=i=[]),i.push(e)}}const s=[];for(const o in r)s.push(this.CreateFromMorphTargetSequence(o,r[o],e,n));return s}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const n=function(t,e,n,r,i){if(0!==n.length){const s=[],o=[];jp.flattenJSON(n,s,o,r),0!==s.length&&i.push(new t(e,s,o))}},r=[],i=t.name||"default",s=t.fps||30,o=t.blendMode;let a=t.length||-1;const l=t.hierarchy||[];for(let c=0;c<l.length;c++){const t=l[c].keys;if(t&&0!==t.length)if(t[0].morphTargets){const e={};let n;for(n=0;n<t.length;n++)if(t[n].morphTargets)for(let r=0;r<t[n].morphTargets.length;r++)e[t[n].morphTargets[r]]=-1;for(const i in e){const e=[],s=[];for(let r=0;r!==t[n].morphTargets.length;++r){const r=t[n];e.push(r.time),s.push(r.morphTarget===i?1:0)}r.push(new $p(".morphTargetInfluence["+i+"]",e,s))}a=e.length*(s||1)}else{const i=".bones["+e[c].name+"]";n(rd,i+".position",t,"pos",r),n(ed,i+".quaternion",t,"rot",r),n(rd,i+".scale",t,"scl",r)}}return 0===r.length?null:new this(i,a,r,o)}resetDuration(){let t=0;for(let e=0,n=this.tracks.length;e!==n;++e){const n=this.tracks[e];t=Math.max(t,n.times[n.times.length-1])}return this.duration=t,this}trim(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this}validate(){let t=!0;for(let e=0;e<this.tracks.length;e++)t=t&&this.tracks[e].validate();return t}optimize(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}clone(){const t=[];for(let e=0;e<this.tracks.length;e++)t.push(this.tracks[e].clone());return new this.constructor(this.name,this.duration,t,this.blendMode)}toJSON(){return this.constructor.toJSON(this)}}function sd(t){switch(t.toLowerCase()){case"scalar":case"double":case"float":case"number":case"integer":return $p;case"vector":case"vector2":case"vector3":case"vector4":return rd;case"color":return Kp;case"quaternion":return ed;case"bool":case"boolean":return Qp;case"string":return nd}throw new Error("THREE.KeyframeTrack: Unsupported typeName: "+t)}function od(t){if(void 0===t.type)throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");const e=sd(t.type);if(void 0===t.times){const e=[],n=[];jp.flattenJSON(t.keys,e,n,"value"),t.times=e,t.values=n}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)}exports.AnimationClip=id;const ad={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}};function ld(t,e,n){const r=this;let i=!1,s=0,o=0,a=void 0;const l=[];this.onStart=void 0,this.onLoad=t,this.onProgress=e,this.onError=n,this.itemStart=function(t){o++,!1===i&&void 0!==r.onStart&&r.onStart(t,s,o),i=!0},this.itemEnd=function(t){s++,void 0!==r.onProgress&&r.onProgress(t,s,o),s===o&&(i=!1,void 0!==r.onLoad&&r.onLoad())},this.itemError=function(t){void 0!==r.onError&&r.onError(t)},this.resolveURL=function(t){return a?a(t):t},this.setURLModifier=function(t){return a=t,this},this.addHandler=function(t,e){return l.push(t,e),this},this.removeHandler=function(t){const e=l.indexOf(t);return-1!==e&&l.splice(e,2),this},this.getHandler=function(t){for(let e=0,n=l.length;e<n;e+=2){const n=l[e],r=l[e+1];if(n.global&&(n.lastIndex=0),n.test(t))return r}return null}}exports.Cache=ad;const cd=new ld;function hd(t){this.manager=void 0!==t?t:cd,this.crossOrigin="anonymous",this.withCredentials=!1,this.path="",this.resourcePath="",this.requestHeader={}}exports.DefaultLoadingManager=cd,Object.assign(hd.prototype,{load:function(){},loadAsync:function(t,e){const n=this;return new Promise(function(r,i){n.load(t,r,e,i)})},parse:function(){},setCrossOrigin:function(t){return this.crossOrigin=t,this},setWithCredentials:function(t){return this.withCredentials=t,this},setPath:function(t){return this.path=t,this},setResourcePath:function(t){return this.resourcePath=t,this},setRequestHeader:function(t){return this.requestHeader=t,this}});const ud={};function pd(t){hd.call(this,t)}pd.prototype=Object.assign(Object.create(hd.prototype),{constructor:pd,load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;if(void 0!==ud[t])return void ud[t].push({onLoad:e,onProgress:n,onError:r});const o=t.match(/^data:(.*?)(;base64)?,(.*)$/);let a;if(o){const n=o[1],s=!!o[2];let a=o[3];a=decodeURIComponent(a),s&&(a=atob(a));try{let s;const o=(this.responseType||"").toLowerCase();switch(o){case"arraybuffer":case"blob":const t=new Uint8Array(a.length);for(let n=0;n<a.length;n++)t[n]=a.charCodeAt(n);s="blob"===o?new Blob([t.buffer],{type:n}):t.buffer;break;case"document":const e=new DOMParser;s=e.parseFromString(a,n);break;case"json":s=JSON.parse(a);break;default:s=a}setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0)}catch(l){setTimeout(function(){r&&r(l),i.manager.itemError(t),i.manager.itemEnd(t)},0)}}else{ud[t]=[],ud[t].push({onLoad:e,onProgress:n,onError:r}),(a=new XMLHttpRequest).open("GET",t,!0),a.addEventListener("load",function(e){const n=this.response,r=ud[t];if(delete ud[t],200===this.status||0===this.status){0===this.status&&console.warn("THREE.FileLoader: HTTP Status 0 received."),ad.add(t,n);for(let t=0,e=r.length;t<e;t++){const e=r[t];e.onLoad&&e.onLoad(n)}i.manager.itemEnd(t)}else{for(let t=0,n=r.length;t<n;t++){const n=r[t];n.onError&&n.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)}},!1),a.addEventListener("progress",function(e){const n=ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onProgress&&r.onProgress(e)}},!1),a.addEventListener("error",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),a.addEventListener("abort",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),void 0!==this.responseType&&(a.responseType=this.responseType),void 0!==this.withCredentials&&(a.withCredentials=this.withCredentials),a.overrideMimeType&&a.overrideMimeType(void 0!==this.mimeType?this.mimeType:"text/plain");for(const t in this.requestHeader)a.setRequestHeader(t,this.requestHeader[t]);a.send(null)}return i.manager.itemStart(t),a},setResponseType:function(t){return this.responseType=t,this},setMimeType:function(t){return this.mimeType=t,this}});class dd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=[];for(let n=0;n<t.length;n++){const r=id.parse(t[n]);e.push(r)}return e}}function md(t){hd.call(this,t)}exports.AnimationLoader=dd,md.prototype=Object.assign(Object.create(hd.prototype),{constructor:md,load:function(t,e,n,r){const i=this,s=[],o=new wu,a=new pd(this.manager);a.setPath(this.path),a.setResponseType("arraybuffer"),a.setRequestHeader(this.requestHeader),a.setWithCredentials(i.withCredentials);let l=0;function c(c){a.load(t[c],function(t){const n=i.parse(t,!0);s[c]={width:n.width,height:n.height,format:n.format,mipmaps:n.mipmaps},6===(l+=1)&&(1===n.mipmapCount&&(o.minFilter=gt),o.image=s,o.format=n.format,o.needsUpdate=!0,e&&e(o))},n,r)}if(Array.isArray(t))for(let h=0,u=t.length;h<u;++h)c(h);else a.load(t,function(t){const n=i.parse(t,!0);if(n.isCubemap){const t=n.mipmaps.length/n.mipmapCount;for(let e=0;e<t;e++){s[e]={mipmaps:[]};for(let t=0;t<n.mipmapCount;t++)s[e].mipmaps.push(n.mipmaps[e*n.mipmapCount+t]),s[e].format=n.format,s[e].width=n.width,s[e].height=n.height}o.image=s}else o.image.width=n.width,o.image.height=n.height,o.mipmaps=n.mipmaps;1===n.mipmapCount&&(o.minFilter=gt),o.format=n.format,o.needsUpdate=!0,e&&e(o)},n,r);return o}});class fd extends hd{constructor(t){super(t)}load(t,e,n,r){void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o=document.createElementNS("http://www.w3.org/1999/xhtml","img");function a(){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),ad.add(t,this),e&&e(this),i.manager.itemEnd(t)}function l(e){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}return o.addEventListener("load",a,!1),o.addEventListener("error",l,!1),"data:"!==t.substr(0,5)&&void 0!==this.crossOrigin&&(o.crossOrigin=this.crossOrigin),i.manager.itemStart(t),o.src=t,o}}exports.ImageLoader=fd;class gd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=new bs,s=new fd(this.manager);s.setCrossOrigin(this.crossOrigin),s.setPath(this.path);let o=0;function a(n){s.load(t[n],function(t){i.images[n]=t,6===++o&&(i.needsUpdate=!0,e&&e(i))},void 0,r)}for(let l=0;l<t.length;++l)a(l);return i}}function xd(t){hd.call(this,t)}function vd(t){hd.call(this,t)}function yd(){this.type="Curve",this.arcLengthDivisions=200}exports.CubeTextureLoader=gd,xd.prototype=Object.assign(Object.create(hd.prototype),{constructor:xd,load:function(t,e,n,r){const i=this,s=new Ms,o=new pd(this.manager);return o.setResponseType("arraybuffer"),o.setRequestHeader(this.requestHeader),o.setPath(this.path),o.setWithCredentials(i.withCredentials),o.load(t,function(t){const n=i.parse(t);n&&(void 0!==n.image?s.image=n.image:void 0!==n.data&&(s.image.width=n.width,s.image.height=n.height,s.image.data=n.data),s.wrapS=void 0!==n.wrapS?n.wrapS:ct,s.wrapT=void 0!==n.wrapT?n.wrapT:ct,s.magFilter=void 0!==n.magFilter?n.magFilter:gt,s.minFilter=void 0!==n.minFilter?n.minFilter:gt,s.anisotropy=void 0!==n.anisotropy?n.anisotropy:1,void 0!==n.encoding&&(s.encoding=n.encoding),void 0!==n.flipY&&(s.flipY=n.flipY),void 0!==n.format&&(s.format=n.format),void 0!==n.type&&(s.type=n.type),void 0!==n.mipmaps&&(s.mipmaps=n.mipmaps,s.minFilter=yt),1===n.mipmapCount&&(s.minFilter=gt),s.needsUpdate=!0,e&&e(s,n))},n,r),s}}),vd.prototype=Object.assign(Object.create(hd.prototype),{constructor:vd,load:function(t,e,n,r){const i=new kn,s=new fd(this.manager);return s.setCrossOrigin(this.crossOrigin),s.setPath(this.path),s.load(t,function(n){i.image=n;const r=t.search(/\.jpe?g($|\?)/i)>0||0===t.search(/^data\:image\/jpeg/);i.format=r?Bt:Nt,i.needsUpdate=!0,void 0!==e&&e(i)},n,r),i}}),Object.assign(yd.prototype,{getPoint:function(){return console.warn("THREE.Curve: .getPoint() not implemented."),null},getPointAt:function(t,e){const n=this.getUtoTmapping(t);return this.getPoint(n,e)},getPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return e},getSpacedPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPointAt(n/t));return e},getLength:function(){const t=this.getLengths();return t[t.length-1]},getLengths:function(t){if(void 0===t&&(t=this.arcLengthDivisions),this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;const e=[];let n,r=this.getPoint(0),i=0;e.push(0);for(let s=1;s<=t;s++)i+=(n=this.getPoint(s/t)).distanceTo(r),e.push(i),r=n;return this.cacheArcLengths=e,e},updateArcLengths:function(){this.needsUpdate=!0,this.getLengths()},getUtoTmapping:function(t,e){const n=this.getLengths();let r=0;const i=n.length;let s;s=e||t*n[i-1];let o,a=0,l=i-1;for(;a<=l;)if((o=n[r=Math.floor(a+(l-a)/2)]-s)<0)a=r+1;else{if(!(o>0)){l=r;break}l=r-1}if(n[r=l]===s)return r/(i-1);const c=n[r];return(r+(s-c)/(n[r+1]-c))/(i-1)},getTangent:function(t,e){let n=t-1e-4,r=t+1e-4;n<0&&(n=0),r>1&&(r=1);const i=this.getPoint(n),s=this.getPoint(r),o=e||(i.isVector2?new On:new Yn);return o.copy(s).sub(i).normalize(),o},getTangentAt:function(t,e){const n=this.getUtoTmapping(t);return this.getTangent(n,e)},computeFrenetFrames:function(t,e){const n=new Yn,r=[],i=[],s=[],o=new Yn,a=new wr;for(let p=0;p<=t;p++){const e=p/t;r[p]=this.getTangentAt(e,new Yn),r[p].normalize()}i[0]=new Yn,s[0]=new Yn;let l=Number.MAX_VALUE;const c=Math.abs(r[0].x),h=Math.abs(r[0].y),u=Math.abs(r[0].z);c<=l&&(l=c,n.set(1,0,0)),h<=l&&(l=h,n.set(0,1,0)),u<=l&&n.set(0,0,1),o.crossVectors(r[0],n).normalize(),i[0].crossVectors(r[0],o),s[0].crossVectors(r[0],i[0]);for(let p=1;p<=t;p++){if(i[p]=i[p-1].clone(),s[p]=s[p-1].clone(),o.crossVectors(r[p-1],r[p]),o.length()>Number.EPSILON){o.normalize();const t=Math.acos(Fn.clamp(r[p-1].dot(r[p]),-1,1));i[p].applyMatrix4(a.makeRotationAxis(o,t))}s[p].crossVectors(r[p],i[p])}if(!0===e){let e=Math.acos(Fn.clamp(i[0].dot(i[t]),-1,1));e/=t,r[0].dot(o.crossVectors(i[0],i[t]))>0&&(e=-e);for(let n=1;n<=t;n++)i[n].applyMatrix4(a.makeRotationAxis(r[n],e*n)),s[n].crossVectors(r[n],i[n])}return{tangents:r,normals:i,binormals:s}},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this},toJSON:function(){const t={metadata:{version:4.5,type:"Curve",generator:"Curve.toJSON"}};return t.arcLengthDivisions=this.arcLengthDivisions,t.type=this.type,t},fromJSON:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}});class _d extends yd{constructor(t=0,e=0,n=1,r=1,i=0,s=2*Math.PI,o=!1,a=0){super(),this.type="EllipseCurve",this.aX=t,this.aY=e,this.xRadius=n,this.yRadius=r,this.aStartAngle=i,this.aEndAngle=s,this.aClockwise=o,this.aRotation=a}getPoint(t,e){const n=e||new On,r=2*Math.PI;let i=this.aEndAngle-this.aStartAngle;const s=Math.abs(i)<Number.EPSILON;for(;i<0;)i+=r;for(;i>r;)i-=r;i<Number.EPSILON&&(i=s?0:r),!0!==this.aClockwise||s||(i===r?i=-r:i-=r);const o=this.aStartAngle+t*i;let a=this.aX+this.xRadius*Math.cos(o),l=this.aY+this.yRadius*Math.sin(o);if(0!==this.aRotation){const t=Math.cos(this.aRotation),e=Math.sin(this.aRotation),n=a-this.aX,r=l-this.aY;a=n*t-r*e+this.aX,l=n*e+r*t+this.aY}return n.set(a,l)}copy(t){return super.copy(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}toJSON(){const t=super.toJSON();return t.aX=this.aX,t.aY=this.aY,t.xRadius=this.xRadius,t.yRadius=this.yRadius,t.aStartAngle=this.aStartAngle,t.aEndAngle=this.aEndAngle,t.aClockwise=this.aClockwise,t.aRotation=this.aRotation,t}fromJSON(t){return super.fromJSON(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}}exports.EllipseCurve=_d,_d.prototype.isEllipseCurve=!0;class bd extends _d{constructor(t,e,n,r,i,s){super(t,e,n,n,r,i,s),this.type="ArcCurve"}}function wd(){let t=0,e=0,n=0,r=0;function i(i,s,o,a){t=i,e=o,n=-3*i+3*s-2*o-a,r=2*i-2*s+o+a}return{initCatmullRom:function(t,e,n,r,s){i(e,n,s*(n-t),s*(r-e))},initNonuniformCatmullRom:function(t,e,n,r,s,o,a){let l=(e-t)/s-(n-t)/(s+o)+(n-e)/o,c=(n-e)/o-(r-e)/(o+a)+(r-n)/a;i(e,n,l*=o,c*=o)},calc:function(i){const s=i*i;return t+e*i+n*s+r*(s*i)}}}exports.ArcCurve=bd,bd.prototype.isArcCurve=!0;const Md=new Yn,Sd=new wd,Td=new wd,Ed=new wd;class Ad extends yd{constructor(t=[],e=!1,n="centripetal",r=.5){super(),this.type="CatmullRomCurve3",this.points=t,this.closed=e,this.curveType=n,this.tension=r}getPoint(t,e=new Yn){const n=e,r=this.points,i=r.length,s=(i-(this.closed?0:1))*t;let o,a,l=Math.floor(s),c=s-l;this.closed?l+=l>0?0:(Math.floor(Math.abs(l)/i)+1)*i:0===c&&l===i-1&&(l=i-2,c=1),this.closed||l>0?o=r[(l-1)%i]:(Md.subVectors(r[0],r[1]).add(r[0]),o=Md);const h=r[l%i],u=r[(l+1)%i];if(this.closed||l+2<i?a=r[(l+2)%i]:(Md.subVectors(r[i-1],r[i-2]).add(r[i-1]),a=Md),"centripetal"===this.curveType||"chordal"===this.curveType){const t="chordal"===this.curveType?.5:.25;let e=Math.pow(o.distanceToSquared(h),t),n=Math.pow(h.distanceToSquared(u),t),r=Math.pow(u.distanceToSquared(a),t);n<1e-4&&(n=1),e<1e-4&&(e=n),r<1e-4&&(r=n),Sd.initNonuniformCatmullRom(o.x,h.x,u.x,a.x,e,n,r),Td.initNonuniformCatmullRom(o.y,h.y,u.y,a.y,e,n,r),Ed.initNonuniformCatmullRom(o.z,h.z,u.z,a.z,e,n,r)}else"catmullrom"===this.curveType&&(Sd.initCatmullRom(o.x,h.x,u.x,a.x,this.tension),Td.initCatmullRom(o.y,h.y,u.y,a.y,this.tension),Ed.initCatmullRom(o.z,h.z,u.z,a.z,this.tension));return n.set(Sd.calc(c),Td.calc(c),Ed.calc(c)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t.closed=this.closed,t.curveType=this.curveType,t.tension=this.tension,t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new Yn).fromArray(n))}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}}function Ld(t,e,n,r,i){const s=.5*(r-e),o=.5*(i-n),a=t*t;return(2*n-2*r+s+o)*(t*a)+(-3*n+3*r-2*s-o)*a+s*t+n}function Rd(t,e){const n=1-t;return n*n*e}function Cd(t,e){return 2*(1-t)*t*e}function Pd(t,e){return t*t*e}function Dd(t,e,n,r){return Rd(t,e)+Cd(t,n)+Pd(t,r)}function Id(t,e){const n=1-t;return n*n*n*e}function Bd(t,e){const n=1-t;return 3*n*n*t*e}function Nd(t,e){return 3*(1-t)*t*t*e}function Fd(t,e){return t*t*t*e}function Od(t,e,n,r,i){return Id(t,e)+Bd(t,n)+Nd(t,r)+Fd(t,i)}exports.CatmullRomCurve3=Ad,Ad.prototype.isCatmullRomCurve3=!0;class zd extends yd{constructor(t=new On,e=new On,n=new On,r=new On){super(),this.type="CubicBezierCurve",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve=zd,zd.prototype.isCubicBezierCurve=!0;class Gd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn,r=new Yn){super(),this.type="CubicBezierCurve3",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y),Od(t,r.z,i.z,s.z,o.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve3=Gd,Gd.prototype.isCubicBezierCurve3=!0;class Hd extends yd{constructor(t=new On,e=new On){super(),this.type="LineCurve",this.v1=t,this.v2=e}getPoint(t,e=new On){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e){const n=e||new On;return n.copy(this.v2).sub(this.v1).normalize(),n}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve=Hd,Hd.prototype.isLineCurve=!0;class Ud extends yd{constructor(t=new Yn,e=new Yn){super(),this.type="LineCurve3",this.isLineCurve3=!0,this.v1=t,this.v2=e}getPoint(t,e=new Yn){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve3=Ud;class kd extends yd{constructor(t=new On,e=new On,n=new On){super(),this.type="QuadraticBezierCurve",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve=kd,kd.prototype.isQuadraticBezierCurve=!0;class Vd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn){super(),this.type="QuadraticBezierCurve3",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y),Dd(t,r.z,i.z,s.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve3=Vd,Vd.prototype.isQuadraticBezierCurve3=!0;class Wd extends yd{constructor(t=[]){super(),this.type="SplineCurve",this.points=t}getPoint(t,e=new On){const n=e,r=this.points,i=(r.length-1)*t,s=Math.floor(i),o=i-s,a=r[0===s?s:s-1],l=r[s],c=r[s>r.length-2?r.length-1:s+1],h=r[s>r.length-3?r.length-1:s+2];return n.set(Ld(o,a.x,l.x,c.x,h.x),Ld(o,a.y,l.y,c.y,h.y)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new On).fromArray(n))}return this}}exports.SplineCurve=Wd,Wd.prototype.isSplineCurve=!0;var jd=Object.freeze({__proto__:null,ArcCurve:bd,CatmullRomCurve3:Ad,CubicBezierCurve:zd,CubicBezierCurve3:Gd,EllipseCurve:_d,LineCurve:Hd,LineCurve3:Ud,QuadraticBezierCurve:kd,QuadraticBezierCurve3:Vd,SplineCurve:Wd});class qd extends yd{constructor(){super(),this.type="CurvePath",this.curves=[],this.autoClose=!1}add(t){this.curves.push(t)}closePath(){const t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);t.equals(e)||this.curves.push(new Hd(e,t))}getPoint(t){const e=t*this.getLength(),n=this.getCurveLengths();let r=0;for(;r<n.length;){if(n[r]>=e){const t=n[r]-e,i=this.curves[r],s=i.getLength(),o=0===s?0:1-t/s;return i.getPointAt(o)}r++}return null}getLength(){const t=this.getCurveLengths();return t[t.length-1]}updateArcLengths(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()}getCurveLengths(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;const t=[];let e=0;for(let n=0,r=this.curves.length;n<r;n++)e+=this.curves[n].getLength(),t.push(e);return this.cacheLengths=t,t}getSpacedPoints(t=40){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return this.autoClose&&e.push(e[0]),e}getPoints(t=12){const e=[];let n;for(let r=0,i=this.curves;r<i.length;r++){const s=i[r],o=s&&s.isEllipseCurve?2*t:s&&(s.isLineCurve||s.isLineCurve3)?1:s&&s.isSplineCurve?t*s.points.length:t,a=s.getPoints(o);for(let t=0;t<a.length;t++){const r=a[t];n&&n.equals(r)||(e.push(r),n=r)}}return this.autoClose&&e.length>1&&!e[e.length-1].equals(e[0])&&e.push(e[0]),e}copy(t){super.copy(t),this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push(n.clone())}return this.autoClose=t.autoClose,this}toJSON(){const t=super.toJSON();t.autoClose=this.autoClose,t.curves=[];for(let e=0,n=this.curves.length;e<n;e++){const n=this.curves[e];t.curves.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.autoClose=t.autoClose,this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push((new jd[n.type]).fromJSON(n))}return this}}exports.CurvePath=qd;class Xd extends qd{constructor(t){super(),this.type="Path",this.currentPoint=new On,t&&this.setFromPoints(t)}setFromPoints(t){this.moveTo(t[0].x,t[0].y);for(let e=1,n=t.length;e<n;e++)this.lineTo(t[e].x,t[e].y);return this}moveTo(t,e){return this.currentPoint.set(t,e),this}lineTo(t,e){const n=new Hd(this.currentPoint.clone(),new On(t,e));return this.curves.push(n),this.currentPoint.set(t,e),this}quadraticCurveTo(t,e,n,r){const i=new kd(this.currentPoint.clone(),new On(t,e),new On(n,r));return this.curves.push(i),this.currentPoint.set(n,r),this}bezierCurveTo(t,e,n,r,i,s){const o=new zd(this.currentPoint.clone(),new On(t,e),new On(n,r),new On(i,s));return this.curves.push(o),this.currentPoint.set(i,s),this}splineThru(t){const e=[this.currentPoint.clone()].concat(t),n=new Wd(e);return this.curves.push(n),this.currentPoint.copy(t[t.length-1]),this}arc(t,e,n,r,i,s){const o=this.currentPoint.x,a=this.currentPoint.y;return this.absarc(t+o,e+a,n,r,i,s),this}absarc(t,e,n,r,i,s){return this.absellipse(t,e,n,n,r,i,s),this}ellipse(t,e,n,r,i,s,o,a){const l=this.currentPoint.x,c=this.currentPoint.y;return this.absellipse(t+l,e+c,n,r,i,s,o,a),this}absellipse(t,e,n,r,i,s,o,a){const l=new _d(t,e,n,r,i,s,o,a);if(this.curves.length>0){const t=l.getPoint(0);t.equals(this.currentPoint)||this.lineTo(t.x,t.y)}this.curves.push(l);const c=l.getPoint(1);return this.currentPoint.copy(c),this}copy(t){return super.copy(t),this.currentPoint.copy(t.currentPoint),this}toJSON(){const t=super.toJSON();return t.currentPoint=this.currentPoint.toArray(),t}fromJSON(t){return super.fromJSON(t),this.currentPoint.fromArray(t.currentPoint),this}}exports.Path=Xd;class Yd extends Xd{constructor(t){super(t),this.uuid=Fn.generateUUID(),this.type="Shape",this.holes=[]}getPointsHoles(t){const e=[];for(let n=0,r=this.holes.length;n<r;n++)e[n]=this.holes[n].getPoints(t);return e}extractPoints(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}}copy(t){super.copy(t),this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.uuid=this.uuid,t.holes=[];for(let e=0,n=this.holes.length;e<n;e++){const n=this.holes[e];t.holes.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.uuid=t.uuid,this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push((new Xd).fromJSON(n))}return this}}exports.Shape=Yd;class Zd extends Xr{constructor(t,e=1){super(),this.type="Light",this.color=new xi(t),this.intensity=e}copy(t){return super.copy(t),this.color.copy(t.color),this.intensity=t.intensity,this}toJSON(t){const e=super.toJSON(t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}exports.Light=Zd,Zd.prototype.isLight=!0;class Jd extends Zd{constructor(t,e,n){super(t,n),this.type="HemisphereLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.groundColor=new xi(e)}copy(t){return Zd.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}exports.HemisphereLight=Jd,Jd.prototype.isHemisphereLight=!0;const Qd=new wr,Kd=new Yn,$d=new Yn;class tm{constructor(t){this.camera=t,this.bias=0,this.normalBias=0,this.radius=1,this.mapSize=new On(512,512),this.map=null,this.mapPass=null,this.matrix=new wr,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new Es,this._frameExtents=new On(1,1),this._viewportCount=1,this._viewports=[new Wn(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,n=this.matrix;Kd.setFromMatrixPosition(t.matrixWorld),e.position.copy(Kd),$d.setFromMatrixPosition(t.target.matrixWorld),e.lookAt($d),e.updateMatrixWorld(),Qd.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Qd),n.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),n.multiply(e.projectionMatrix),n.multiply(e.matrixWorldInverse)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}copy(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class em extends tm{constructor(){super(new xs(50,1,.5,500)),this.focus=1}updateMatrices(t){const e=this.camera,n=2*Fn.RAD2DEG*t.angle*this.focus,r=this.mapSize.width/this.mapSize.height,i=t.distance||e.far;n===e.fov&&r===e.aspect&&i===e.far||(e.fov=n,e.aspect=r,e.far=i,e.updateProjectionMatrix()),super.updateMatrices(t)}}em.prototype.isSpotLightShadow=!0;class nm extends Zd{constructor(t,e,n=0,r=Math.PI/3,i=0,s=1){super(t,e),this.type="SpotLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.distance=n,this.angle=r,this.penumbra=i,this.decay=s,this.shadow=new em}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}copy(t){return super.copy(t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.SpotLight=nm,nm.prototype.isSpotLight=!0;const rm=new wr,im=new Yn,sm=new Yn;class om extends tm{constructor(){super(new xs(90,1,.5,500)),this._frameExtents=new On(4,2),this._viewportCount=6,this._viewports=[new Wn(2,1,1,1),new Wn(0,1,1,1),new Wn(3,1,1,1),new Wn(1,1,1,1),new Wn(3,0,1,1),new Wn(1,0,1,1)],this._cubeDirections=[new Yn(1,0,0),new Yn(-1,0,0),new Yn(0,0,1),new Yn(0,0,-1),new Yn(0,1,0),new Yn(0,-1,0)],this._cubeUps=[new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,0,1),new Yn(0,0,-1)]}updateMatrices(t,e=0){const n=this.camera,r=this.matrix;im.setFromMatrixPosition(t.matrixWorld),n.position.copy(im),sm.copy(n.position),sm.add(this._cubeDirections[e]),n.up.copy(this._cubeUps[e]),n.lookAt(sm),n.updateMatrixWorld(),r.makeTranslation(-im.x,-im.y,-im.z),rm.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),this._frustum.setFromProjectionMatrix(rm)}}om.prototype.isPointLightShadow=!0;class am extends Zd{constructor(t,e,n=0,r=1){super(t,e),this.type="PointLight",this.distance=n,this.decay=r,this.shadow=new om}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}copy(t){return super.copy(t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}exports.PointLight=am,am.prototype.isPointLight=!0;class lm extends gs{constructor(t=-1,e=1,n=1,r=-1,i=.1,s=2e3){super(),this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=n,this.bottom=r,this.near=i,this.far=s,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,n,r,i,s){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,r=(this.top+this.bottom)/2;let i=n-t,s=n+t,o=r+e,a=r-e;if(null!==this.view&&this.view.enabled){const t=(this.right-this.left)/this.view.fullWidth/this.zoom,e=(this.top-this.bottom)/this.view.fullHeight/this.zoom;s=(i+=t*this.view.offsetX)+t*this.view.width,a=(o-=e*this.view.offsetY)-e*this.view.height}this.projectionMatrix.makeOrthographic(i,s,o,a,this.near,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}exports.OrthographicCamera=lm,lm.prototype.isOrthographicCamera=!0;class cm extends tm{constructor(){super(new lm(-5,5,5,-5,.5,500))}}cm.prototype.isDirectionalLightShadow=!0;class hm extends Zd{constructor(t,e){super(t,e),this.type="DirectionalLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.shadow=new cm}copy(t){return super.copy(t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.DirectionalLight=hm,hm.prototype.isDirectionalLight=!0;class um extends Zd{constructor(t,e){super(t,e),this.type="AmbientLight"}}exports.AmbientLight=um,um.prototype.isAmbientLight=!0;class pm extends Zd{constructor(t,e,n=10,r=10){super(t,e),this.type="RectAreaLight",this.width=n,this.height=r}copy(t){return super.copy(t),this.width=t.width,this.height=t.height,this}toJSON(t){const e=super.toJSON(t);return e.object.width=this.width,e.object.height=this.height,e}}exports.RectAreaLight=pm,pm.prototype.isRectAreaLight=!0;class dm{constructor(){this.coefficients=[];for(let t=0;t<9;t++)this.coefficients.push(new Yn)}set(t){for(let e=0;e<9;e++)this.coefficients[e].copy(t[e]);return this}zero(){for(let t=0;t<9;t++)this.coefficients[t].set(0,0,0);return this}getAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.282095),e.addScaledVector(s[1],.488603*r),e.addScaledVector(s[2],.488603*i),e.addScaledVector(s[3],.488603*n),e.addScaledVector(s[4],n*r*1.092548),e.addScaledVector(s[5],r*i*1.092548),e.addScaledVector(s[6],.315392*(3*i*i-1)),e.addScaledVector(s[7],n*i*1.092548),e.addScaledVector(s[8],.546274*(n*n-r*r)),e}getIrradianceAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.886227),e.addScaledVector(s[1],1.023328*r),e.addScaledVector(s[2],1.023328*i),e.addScaledVector(s[3],1.023328*n),e.addScaledVector(s[4],.858086*n*r),e.addScaledVector(s[5],.858086*r*i),e.addScaledVector(s[6],.743125*i*i-.247708),e.addScaledVector(s[7],.858086*n*i),e.addScaledVector(s[8],.429043*(n*n-r*r)),e}add(t){for(let e=0;e<9;e++)this.coefficients[e].add(t.coefficients[e]);return this}addScaledSH(t,e){for(let n=0;n<9;n++)this.coefficients[n].addScaledVector(t.coefficients[n],e);return this}scale(t){for(let e=0;e<9;e++)this.coefficients[e].multiplyScalar(t);return this}lerp(t,e){for(let n=0;n<9;n++)this.coefficients[n].lerp(t.coefficients[n],e);return this}equals(t){for(let e=0;e<9;e++)if(!this.coefficients[e].equals(t.coefficients[e]))return!1;return!0}copy(t){return this.set(t.coefficients)}clone(){return(new this.constructor).copy(this)}fromArray(t,e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].fromArray(t,e+3*r);return this}toArray(t=[],e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].toArray(t,e+3*r);return t}static getBasisAt(t,e){const n=t.x,r=t.y,i=t.z;e[0]=.282095,e[1]=.488603*r,e[2]=.488603*i,e[3]=.488603*n,e[4]=1.092548*n*r,e[5]=1.092548*r*i,e[6]=.315392*(3*i*i-1),e[7]=1.092548*n*i,e[8]=.546274*(n*n-r*r)}}exports.SphericalHarmonics3=dm,dm.prototype.isSphericalHarmonics3=!0;class mm extends Zd{constructor(t=new dm,e=1){super(void 0,e),this.sh=t}copy(t){return super.copy(t),this.sh.copy(t.sh),this}fromJSON(t){return this.intensity=t.intensity,this.sh.fromArray(t.sh),this}toJSON(t){const e=super.toJSON(t);return e.object.sh=this.sh.toArray(),e}}exports.LightProbe=mm,mm.prototype.isLightProbe=!0;class fm extends hd{constructor(t){super(t),this.textures={}}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=this.textures;function n(t){return void 0===e[t]&&console.warn("THREE.MaterialLoader: Undefined texture",t),e[t]}const r=new Wp[t.type];if(void 0!==t.uuid&&(r.uuid=t.uuid),void 0!==t.name&&(r.name=t.name),void 0!==t.color&&void 0!==r.color&&r.color.setHex(t.color),void 0!==t.roughness&&(r.roughness=t.roughness),void 0!==t.metalness&&(r.metalness=t.metalness),void 0!==t.sheen&&(r.sheen=(new xi).setHex(t.sheen)),void 0!==t.emissive&&void 0!==r.emissive&&r.emissive.setHex(t.emissive),void 0!==t.specular&&void 0!==r.specular&&r.specular.setHex(t.specular),void 0!==t.shininess&&(r.shininess=t.shininess),void 0!==t.clearcoat&&(r.clearcoat=t.clearcoat),void 0!==t.clearcoatRoughness&&(r.clearcoatRoughness=t.clearcoatRoughness),void 0!==t.fog&&(r.fog=t.fog),void 0!==t.flatShading&&(r.flatShading=t.flatShading),void 0!==t.blending&&(r.blending=t.blending),void 0!==t.combine&&(r.combine=t.combine),void 0!==t.side&&(r.side=t.side),void 0!==t.opacity&&(r.opacity=t.opacity),void 0!==t.transparent&&(r.transparent=t.transparent),void 0!==t.alphaTest&&(r.alphaTest=t.alphaTest),void 0!==t.depthTest&&(r.depthTest=t.depthTest),void 0!==t.depthWrite&&(r.depthWrite=t.depthWrite),void 0!==t.colorWrite&&(r.colorWrite=t.colorWrite),void 0!==t.stencilWrite&&(r.stencilWrite=t.stencilWrite),void 0!==t.stencilWriteMask&&(r.stencilWriteMask=t.stencilWriteMask),void 0!==t.stencilFunc&&(r.stencilFunc=t.stencilFunc),void 0!==t.stencilRef&&(r.stencilRef=t.stencilRef),void 0!==t.stencilFuncMask&&(r.stencilFuncMask=t.stencilFuncMask),void 0!==t.stencilFail&&(r.stencilFail=t.stencilFail),void 0!==t.stencilZFail&&(r.stencilZFail=t.stencilZFail),void 0!==t.stencilZPass&&(r.stencilZPass=t.stencilZPass),void 0!==t.wireframe&&(r.wireframe=t.wireframe),void 0!==t.wireframeLinewidth&&(r.wireframeLinewidth=t.wireframeLinewidth),void 0!==t.wireframeLinecap&&(r.wireframeLinecap=t.wireframeLinecap),void 0!==t.wireframeLinejoin&&(r.wireframeLinejoin=t.wireframeLinejoin),void 0!==t.rotation&&(r.rotation=t.rotation),1!==t.linewidth&&(r.linewidth=t.linewidth),void 0!==t.dashSize&&(r.dashSize=t.dashSize),void 0!==t.gapSize&&(r.gapSize=t.gapSize),void 0!==t.scale&&(r.scale=t.scale),void 0!==t.polygonOffset&&(r.polygonOffset=t.polygonOffset),void 0!==t.polygonOffsetFactor&&(r.polygonOffsetFactor=t.polygonOffsetFactor),void 0!==t.polygonOffsetUnits&&(r.polygonOffsetUnits=t.polygonOffsetUnits),void 0!==t.skinning&&(r.skinning=t.skinning),void 0!==t.morphTargets&&(r.morphTargets=t.morphTargets),void 0!==t.morphNormals&&(r.morphNormals=t.morphNormals),void 0!==t.dithering&&(r.dithering=t.dithering),void 0!==t.vertexTangents&&(r.vertexTangents=t.vertexTangents),void 0!==t.visible&&(r.visible=t.visible),void 0!==t.toneMapped&&(r.toneMapped=t.toneMapped),void 0!==t.userData&&(r.userData=t.userData),void 0!==t.vertexColors&&("number"==typeof t.vertexColors?r.vertexColors=t.vertexColors>0:r.vertexColors=t.vertexColors),void 0!==t.uniforms)for(const i in t.uniforms){const e=t.uniforms[i];switch(r.uniforms[i]={},e.type){case"t":r.uniforms[i].value=n(e.value);break;case"c":r.uniforms[i].value=(new xi).setHex(e.value);break;case"v2":r.uniforms[i].value=(new On).fromArray(e.value);break;case"v3":r.uniforms[i].value=(new Yn).fromArray(e.value);break;case"v4":r.uniforms[i].value=(new Wn).fromArray(e.value);break;case"m3":r.uniforms[i].value=(new zn).fromArray(e.value);break;case"m4":r.uniforms[i].value=(new wr).fromArray(e.value);break;default:r.uniforms[i].value=e.value}}if(void 0!==t.defines&&(r.defines=t.defines),void 0!==t.vertexShader&&(r.vertexShader=t.vertexShader),void 0!==t.fragmentShader&&(r.fragmentShader=t.fragmentShader),void 0!==t.extensions)for(const i in t.extensions)r.extensions[i]=t.extensions[i];if(void 0!==t.shading&&(r.flatShading=1===t.shading),void 0!==t.size&&(r.size=t.size),void 0!==t.sizeAttenuation&&(r.sizeAttenuation=t.sizeAttenuation),void 0!==t.map&&(r.map=n(t.map)),void 0!==t.matcap&&(r.matcap=n(t.matcap)),void 0!==t.alphaMap&&(r.alphaMap=n(t.alphaMap)),void 0!==t.bumpMap&&(r.bumpMap=n(t.bumpMap)),void 0!==t.bumpScale&&(r.bumpScale=t.bumpScale),void 0!==t.normalMap&&(r.normalMap=n(t.normalMap)),void 0!==t.normalMapType&&(r.normalMapType=t.normalMapType),void 0!==t.normalScale){let e=t.normalScale;!1===Array.isArray(e)&&(e=[e,e]),r.normalScale=(new On).fromArray(e)}return void 0!==t.displacementMap&&(r.displacementMap=n(t.displacementMap)),void 0!==t.displacementScale&&(r.displacementScale=t.displacementScale),void 0!==t.displacementBias&&(r.displacementBias=t.displacementBias),void 0!==t.roughnessMap&&(r.roughnessMap=n(t.roughnessMap)),void 0!==t.metalnessMap&&(r.metalnessMap=n(t.metalnessMap)),void 0!==t.emissiveMap&&(r.emissiveMap=n(t.emissiveMap)),void 0!==t.emissiveIntensity&&(r.emissiveIntensity=t.emissiveIntensity),void 0!==t.specularMap&&(r.specularMap=n(t.specularMap)),void 0!==t.envMap&&(r.envMap=n(t.envMap)),void 0!==t.envMapIntensity&&(r.envMapIntensity=t.envMapIntensity),void 0!==t.reflectivity&&(r.reflectivity=t.reflectivity),void 0!==t.refractionRatio&&(r.refractionRatio=t.refractionRatio),void 0!==t.lightMap&&(r.lightMap=n(t.lightMap)),void 0!==t.lightMapIntensity&&(r.lightMapIntensity=t.lightMapIntensity),void 0!==t.aoMap&&(r.aoMap=n(t.aoMap)),void 0!==t.aoMapIntensity&&(r.aoMapIntensity=t.aoMapIntensity),void 0!==t.gradientMap&&(r.gradientMap=n(t.gradientMap)),void 0!==t.clearcoatMap&&(r.clearcoatMap=n(t.clearcoatMap)),void 0!==t.clearcoatRoughnessMap&&(r.clearcoatRoughnessMap=n(t.clearcoatRoughnessMap)),void 0!==t.clearcoatNormalMap&&(r.clearcoatNormalMap=n(t.clearcoatNormalMap)),void 0!==t.clearcoatNormalScale&&(r.clearcoatNormalScale=(new On).fromArray(t.clearcoatNormalScale)),void 0!==t.transmission&&(r.transmission=t.transmission),void 0!==t.transmissionMap&&(r.transmissionMap=n(t.transmissionMap)),r}setTextures(t){return this.textures=t,this}}exports.MaterialLoader=fm;const gm={decodeText:function(t){if("undefined"!=typeof TextDecoder)return(new TextDecoder).decode(t);let e="";for(let r=0,i=t.length;r<i;r++)e+=String.fromCharCode(t[r]);try{return decodeURIComponent(escape(e))}catch(n){return e}},extractUrlBase:function(t){const e=t.lastIndexOf("/");return-1===e?"./":t.substr(0,e+1)}};function xm(){ki.call(this),this.type="InstancedBufferGeometry",this.instanceCount=1/0}function vm(t,e,n,r){"number"==typeof n&&(r=n,n=!1,console.error("THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.")),bi.call(this,t,e,n),this.meshPerAttribute=r||1}exports.LoaderUtils=gm,xm.prototype=Object.assign(Object.create(ki.prototype),{constructor:xm,isInstancedBufferGeometry:!0,copy:function(t){return ki.prototype.copy.call(this,t),this.instanceCount=t.instanceCount,this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){const t=ki.prototype.toJSON.call(this);return t.instanceCount=this.instanceCount,t.isInstancedBufferGeometry=!0,t}}),vm.prototype=Object.assign(Object.create(bi.prototype),{constructor:vm,isInstancedBufferAttribute:!0,copy:function(t){return bi.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},toJSON:function(){const t=bi.prototype.toJSON.call(this);return t.meshPerAttribute=this.meshPerAttribute,t.isInstancedBufferAttribute=!0,t}});class ym extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e={},n={};function r(t,r){if(void 0!==e[r])return e[r];const i=t.interleavedBuffers[r],s=function(t,e){if(void 0!==n[e])return n[e];const r=t.arrayBuffers[e],i=new Uint32Array(r).buffer;return n[e]=i,i}(t,i.buffer),o=new _h(Bi(i.type,s),i.stride);return o.uuid=i.uuid,e[r]=o,o}const i=t.isInstancedBufferGeometry?new xm:new ki,s=t.data.index;if(void 0!==s){const t=Bi(s.type,s.array);i.setIndex(new bi(t,1))}const o=t.data.attributes;for(const h in o){const e=o[h];let n;if(e.isInterleavedBufferAttribute){n=new wh(r(t.data,e.data),e.itemSize,e.offset,e.normalized)}else{const t=Bi(e.type,e.array);n=new(e.isInstancedBufferAttribute?vm:bi)(t,e.itemSize,e.normalized)}void 0!==e.name&&(n.name=e.name),i.setAttribute(h,n)}const a=t.data.morphAttributes;if(a)for(const h in a){const e=a[h],n=[];for(let i=0,s=e.length;i<s;i++){const s=e[i];let o;if(s.isInterleavedBufferAttribute){o=new wh(r(t.data,s.data),s.itemSize,s.offset,s.normalized)}else{o=new bi(Bi(s.type,s.array),s.itemSize,s.normalized)}void 0!==s.name&&(o.name=s.name),n.push(o)}i.morphAttributes[h]=n}t.data.morphTargetsRelative&&(i.morphTargetsRelative=!0);const l=t.data.groups||t.data.drawcalls||t.data.offsets;if(void 0!==l)for(let h=0,u=l.length;h!==u;++h){const t=l[h];i.addGroup(t.start,t.count,t.materialIndex)}const c=t.data.boundingSphere;if(void 0!==c){const t=new Yn;void 0!==c.center&&t.fromArray(c.center),i.boundingSphere=new dr(t,c.radius)}return t.name&&(i.name=t.name),t.userData&&(i.userData=t.userData),i}}exports.BufferGeometryLoader=ym;class _m extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=""===this.path?gm.extractUrlBase(t):this.path;this.resourcePath=this.resourcePath||s;const o=new pd(this.manager);o.setPath(this.path),o.setRequestHeader(this.requestHeader),o.setWithCredentials(this.withCredentials),o.load(t,function(n){let s=null;try{s=JSON.parse(n)}catch(a){return void 0!==r&&r(a),void console.error("THREE:ObjectLoader: Can't parse "+t+".",a.message)}const o=s.metadata;void 0!==o&&void 0!==o.type&&"geometry"!==o.type.toLowerCase()?i.parse(s,e):console.error("THREE.ObjectLoader: Can't load "+t)},n,r)}parse(t,e){const n=this.parseAnimations(t.animations),r=this.parseShapes(t.shapes),i=this.parseGeometries(t.geometries,r),s=this.parseImages(t.images,function(){void 0!==e&&e(l)}),o=this.parseTextures(t.textures,s),a=this.parseMaterials(t.materials,o),l=this.parseObject(t.object,i,a,n),c=this.parseSkeletons(t.skeletons,l);if(this.bindSkeletons(l,c),void 0!==e){let t=!1;for(const e in s)if(s[e]instanceof HTMLImageElement){t=!0;break}!1===t&&e(l)}return l}parseShapes(t){const e={};if(void 0!==t)for(let n=0,r=t.length;n<r;n++){const r=(new Yd).fromJSON(t[n]);e[r.uuid]=r}return e}parseSkeletons(t,e){const n={},r={};if(e.traverse(function(t){t.isBone&&(r[t.uuid]=t)}),void 0!==t)for(let i=0,s=t.length;i<s;i++){const e=(new Qh).fromJSON(t[i],r);n[e.uuid]=e}return n}parseGeometries(t,e){const n={};let r;if(void 0!==t){const i=new ym;for(let s=0,o=t.length;s<o;s++){let o;const a=t[s];switch(a.type){case"PlaneGeometry":case"PlaneBufferGeometry":o=new Ip[a.type](a.width,a.height,a.widthSegments,a.heightSegments);break;case"BoxGeometry":case"BoxBufferGeometry":o=new Ip[a.type](a.width,a.height,a.depth,a.widthSegments,a.heightSegments,a.depthSegments);break;case"CircleGeometry":case"CircleBufferGeometry":o=new Ip[a.type](a.radius,a.segments,a.thetaStart,a.thetaLength);break;case"CylinderGeometry":case"CylinderBufferGeometry":o=new Ip[a.type](a.radiusTop,a.radiusBottom,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"ConeGeometry":case"ConeBufferGeometry":o=new Ip[a.type](a.radius,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"SphereGeometry":case"SphereBufferGeometry":o=new Ip[a.type](a.radius,a.widthSegments,a.heightSegments,a.phiStart,a.phiLength,a.thetaStart,a.thetaLength);break;case"DodecahedronGeometry":case"DodecahedronBufferGeometry":case"IcosahedronGeometry":case"IcosahedronBufferGeometry":case"OctahedronGeometry":case"OctahedronBufferGeometry":case"TetrahedronGeometry":case"TetrahedronBufferGeometry":o=new Ip[a.type](a.radius,a.detail);break;case"RingGeometry":case"RingBufferGeometry":o=new Ip[a.type](a.innerRadius,a.outerRadius,a.thetaSegments,a.phiSegments,a.thetaStart,a.thetaLength);break;case"TorusGeometry":case"TorusBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.radialSegments,a.tubularSegments,a.arc);break;case"TorusKnotGeometry":case"TorusKnotBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.tubularSegments,a.radialSegments,a.p,a.q);break;case"TubeGeometry":case"TubeBufferGeometry":o=new Ip[a.type]((new jd[a.path.type]).fromJSON(a.path),a.tubularSegments,a.radius,a.radialSegments,a.closed);break;case"LatheGeometry":case"LatheBufferGeometry":o=new Ip[a.type](a.points,a.segments,a.phiStart,a.phiLength);break;case"PolyhedronGeometry":case"PolyhedronBufferGeometry":o=new Ip[a.type](a.vertices,a.indices,a.radius,a.details);break;case"ShapeGeometry":case"ShapeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}o=new Ip[a.type](r,a.curveSegments);break;case"ExtrudeGeometry":case"ExtrudeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}const t=a.options.extrudePath;void 0!==t&&(a.options.extrudePath=(new jd[t.type]).fromJSON(t)),o=new Ip[a.type](r,a.options);break;case"BufferGeometry":case"InstancedBufferGeometry":o=i.parse(a);break;case"Geometry":console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type "'+a.type+'"');continue}o.uuid=a.uuid,void 0!==a.name&&(o.name=a.name),!0===o.isBufferGeometry&&void 0!==a.userData&&(o.userData=a.userData),n[a.uuid]=o}}return n}parseMaterials(t,e){const n={},r={};if(void 0!==t){const i=new fm;i.setTextures(e);for(let e=0,s=t.length;e<s;e++){const s=t[e];if("MultiMaterial"===s.type){const t=[];for(let e=0;e<s.materials.length;e++){const r=s.materials[e];void 0===n[r.uuid]&&(n[r.uuid]=i.parse(r)),t.push(n[r.uuid])}r[s.uuid]=t}else void 0===n[s.uuid]&&(n[s.uuid]=i.parse(s)),r[s.uuid]=n[s.uuid]}}return r}parseAnimations(t){const e={};if(void 0!==t)for(let n=0;n<t.length;n++){const r=t[n],i=id.parse(r);e[i.uuid]=i}return e}parseImages(t,e){const n=this,r={};let i;function s(t){if("string"==typeof t){const e=t;return function(t){return n.manager.itemStart(t),i.load(t,function(){n.manager.itemEnd(t)},void 0,function(){n.manager.itemError(t),n.manager.itemEnd(t)})}(/^(\/\/)|([a-z]+:(\/\/)?)/i.test(e)?e:n.resourcePath+e)}return t.data?{data:Bi(t.type,t.data),width:t.width,height:t.height}:null}if(void 0!==t&&t.length>0){const n=new ld(e);(i=new fd(n)).setCrossOrigin(this.crossOrigin);for(let e=0,i=t.length;e<i;e++){const n=t[e],i=n.url;if(Array.isArray(i)){r[n.uuid]=[];for(let t=0,e=i.length;t<e;t++){const e=s(i[t]);null!==e&&(e instanceof HTMLImageElement?r[n.uuid].push(e):r[n.uuid].push(new Ms(e.data,e.width,e.height)))}}else{const t=s(n.url);null!==t&&(r[n.uuid]=t)}}}return r}parseTextures(t,e){function n(t,e){return"number"==typeof t?t:(console.warn("THREE.ObjectLoader.parseTexture: Constant should be in numeric form.",t),e[t])}const r={};if(void 0!==t)for(let i=0,s=t.length;i<s;i++){const s=t[i];let o;void 0===s.image&&console.warn('THREE.ObjectLoader: No "image" specified for',s.uuid),void 0===e[s.image]&&console.warn("THREE.ObjectLoader: Undefined image",s.image);const a=e[s.image];Array.isArray(a)?(o=new bs(a),6===a.length&&(o.needsUpdate=!0)):(o=a&&a.data?new Ms(a.data,a.width,a.height):new kn(a),a&&(o.needsUpdate=!0)),o.uuid=s.uuid,void 0!==s.name&&(o.name=s.name),void 0!==s.mapping&&(o.mapping=n(s.mapping,bm)),void 0!==s.offset&&o.offset.fromArray(s.offset),void 0!==s.repeat&&o.repeat.fromArray(s.repeat),void 0!==s.center&&o.center.fromArray(s.center),void 0!==s.rotation&&(o.rotation=s.rotation),void 0!==s.wrap&&(o.wrapS=n(s.wrap[0],wm),o.wrapT=n(s.wrap[1],wm)),void 0!==s.format&&(o.format=s.format),void 0!==s.type&&(o.type=s.type),void 0!==s.encoding&&(o.encoding=s.encoding),void 0!==s.minFilter&&(o.minFilter=n(s.minFilter,Mm)),void 0!==s.magFilter&&(o.magFilter=n(s.magFilter,Mm)),void 0!==s.anisotropy&&(o.anisotropy=s.anisotropy),void 0!==s.flipY&&(o.flipY=s.flipY),void 0!==s.premultiplyAlpha&&(o.premultiplyAlpha=s.premultiplyAlpha),void 0!==s.unpackAlignment&&(o.unpackAlignment=s.unpackAlignment),r[s.uuid]=o}return r}parseObject(t,e,n,r){let i,s,o;function a(t){return void 0===e[t]&&console.warn("THREE.ObjectLoader: Undefined geometry",t),e[t]}function l(t){if(void 0!==t){if(Array.isArray(t)){const e=[];for(let r=0,i=t.length;r<i;r++){const i=t[r];void 0===n[i]&&console.warn("THREE.ObjectLoader: Undefined material",i),e.push(n[i])}return e}return void 0===n[t]&&console.warn("THREE.ObjectLoader: Undefined material",t),n[t]}}switch(t.type){case"Scene":i=new yh,void 0!==t.background&&Number.isInteger(t.background)&&(i.background=new xi(t.background)),void 0!==t.fog&&("Fog"===t.fog.type?i.fog=new vh(t.fog.color,t.fog.near,t.fog.far):"FogExp2"===t.fog.type&&(i.fog=new xh(t.fog.color,t.fog.density)));break;case"PerspectiveCamera":i=new xs(t.fov,t.aspect,t.near,t.far),void 0!==t.focus&&(i.focus=t.focus),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.filmGauge&&(i.filmGauge=t.filmGauge),void 0!==t.filmOffset&&(i.filmOffset=t.filmOffset),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"OrthographicCamera":i=new lm(t.left,t.right,t.top,t.bottom,t.near,t.far),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"AmbientLight":i=new um(t.color,t.intensity);break;case"DirectionalLight":i=new hm(t.color,t.intensity);break;case"PointLight":i=new am(t.color,t.intensity,t.distance,t.decay);break;case"RectAreaLight":i=new pm(t.color,t.intensity,t.width,t.height);break;case"SpotLight":i=new nm(t.color,t.intensity,t.distance,t.angle,t.penumbra,t.decay);break;case"HemisphereLight":i=new Jd(t.color,t.groundColor,t.intensity);break;case"LightProbe":i=(new mm).fromJSON(t);break;case"SkinnedMesh":i=new Xh(s=a(t.geometry),o=l(t.material)),void 0!==t.bindMode&&(i.bindMode=t.bindMode),void 0!==t.bindMatrix&&i.bindMatrix.fromArray(t.bindMatrix),void 0!==t.skeleton&&(i.skeleton=t.skeleton);break;case"Mesh":i=new os(s=a(t.geometry),o=l(t.material));break;case"InstancedMesh":s=a(t.geometry),o=l(t.material);const e=t.count,n=t.instanceMatrix;(i=new nu(s,o,e)).instanceMatrix=new bi(new Float32Array(n.array),16);break;case"LOD":i=new Uh;break;case"Line":i=new cu(a(t.geometry),l(t.material));break;case"LineLoop":i=new du(a(t.geometry),l(t.material));break;case"LineSegments":i=new pu(a(t.geometry),l(t.material));break;case"PointCloud":case"Points":i=new yu(a(t.geometry),l(t.material));break;case"Sprite":i=new Oh(l(t.material));break;case"Group":i=new hh;break;case"Bone":i=new Yh;break;default:i=new Xr}if(i.uuid=t.uuid,void 0!==t.name&&(i.name=t.name),void 0!==t.matrix?(i.matrix.fromArray(t.matrix),void 0!==t.matrixAutoUpdate&&(i.matrixAutoUpdate=t.matrixAutoUpdate),i.matrixAutoUpdate&&i.matrix.decompose(i.position,i.quaternion,i.scale)):(void 0!==t.position&&i.position.fromArray(t.position),void 0!==t.rotation&&i.rotation.fromArray(t.rotation),void 0!==t.quaternion&&i.quaternion.fromArray(t.quaternion),void 0!==t.scale&&i.scale.fromArray(t.scale)),void 0!==t.castShadow&&(i.castShadow=t.castShadow),void 0!==t.receiveShadow&&(i.receiveShadow=t.receiveShadow),t.shadow&&(void 0!==t.shadow.bias&&(i.shadow.bias=t.shadow.bias),void 0!==t.shadow.normalBias&&(i.shadow.normalBias=t.shadow.normalBias),void 0!==t.shadow.radius&&(i.shadow.radius=t.shadow.radius),void 0!==t.shadow.mapSize&&i.shadow.mapSize.fromArray(t.shadow.mapSize),void 0!==t.shadow.camera&&(i.shadow.camera=this.parseObject(t.shadow.camera))),void 0!==t.visible&&(i.visible=t.visible),void 0!==t.frustumCulled&&(i.frustumCulled=t.frustumCulled),void 0!==t.renderOrder&&(i.renderOrder=t.renderOrder),void 0!==t.userData&&(i.userData=t.userData),void 0!==t.layers&&(i.layers.mask=t.layers),void 0!==t.children){const s=t.children;for(let t=0;t<s.length;t++)i.add(this.parseObject(s[t],e,n,r))}if(void 0!==t.animations){const e=t.animations;for(let t=0;t<e.length;t++){const n=e[t];i.animations.push(r[n])}}if("LOD"===t.type){void 0!==t.autoUpdate&&(i.autoUpdate=t.autoUpdate);const e=t.levels;for(let t=0;t<e.length;t++){const n=e[t],r=i.getObjectByProperty("uuid",n.object);void 0!==r&&i.addLevel(r,n.distance)}}return i}bindSkeletons(t,e){0!==Object.keys(e).length&&t.traverse(function(t){if(!0===t.isSkinnedMesh&&void 0!==t.skeleton){const n=e[t.skeleton];void 0===n?console.warn("THREE.ObjectLoader: No skeleton found with UUID:",t.skeleton):t.bind(n,t.bindMatrix)}})}setTexturePath(t){return console.warn("THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath()."),this.setResourcePath(t)}}exports.ObjectLoader=_m;const bm={UVMapping:et,CubeReflectionMapping:nt,CubeRefractionMapping:rt,EquirectangularReflectionMapping:it,EquirectangularRefractionMapping:st,CubeUVReflectionMapping:ot,CubeUVRefractionMapping:at},wm={RepeatWrapping:lt,ClampToEdgeWrapping:ct,MirroredRepeatWrapping:ht},Mm={NearestFilter:ut,NearestMipmapNearestFilter:pt,NearestMipmapLinearFilter:mt,LinearFilter:gt,LinearMipmapNearestFilter:xt,LinearMipmapLinearFilter:yt};function Sm(t){"undefined"==typeof createImageBitmap&&console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported."),"undefined"==typeof fetch&&console.warn("THREE.ImageBitmapLoader: fetch() not supported."),hd.call(this,t),this.options={premultiplyAlpha:"none"}}Sm.prototype=Object.assign(Object.create(hd.prototype),{constructor:Sm,isImageBitmapLoader:!0,setOptions:function(t){return this.options=t,this},load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o={};o.credentials="anonymous"===this.crossOrigin?"same-origin":"include",o.headers=this.requestHeader,fetch(t,o).then(function(t){return t.blob()}).then(function(t){return createImageBitmap(t,Object.assign(i.options,{colorSpaceConversion:"none"}))}).then(function(n){ad.add(t,n),e&&e(n),i.manager.itemEnd(t)}).catch(function(e){r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}),i.manager.itemStart(t)}});class Tm{constructor(){this.type="ShapePath",this.color=new xi,this.subPaths=[],this.currentPath=null}moveTo(t,e){return this.currentPath=new Xd,this.subPaths.push(this.currentPath),this.currentPath.moveTo(t,e),this}lineTo(t,e){return this.currentPath.lineTo(t,e),this}quadraticCurveTo(t,e,n,r){return this.currentPath.quadraticCurveTo(t,e,n,r),this}bezierCurveTo(t,e,n,r,i,s){return this.currentPath.bezierCurveTo(t,e,n,r,i,s),this}splineThru(t){return this.currentPath.splineThru(t),this}toShapes(t,e){function n(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n],i=new Yd;i.curves=r.curves,e.push(i)}return e}function r(t,e){const n=e.length;let r=!1;for(let i=n-1,s=0;s<n;i=s++){let n=e[i],o=e[s],a=o.x-n.x,l=o.y-n.y;if(Math.abs(l)>Number.EPSILON){if(l<0&&(n=e[s],a=-a,o=e[i],l=-l),t.y<n.y||t.y>o.y)continue;if(t.y===n.y){if(t.x===n.x)return!0}else{const e=l*(t.x-n.x)-a*(t.y-n.y);if(0===e)return!0;if(e<0)continue;r=!r}}else{if(t.y!==n.y)continue;if(o.x<=t.x&&t.x<=n.x||n.x<=t.x&&t.x<=o.x)return!0}}return r}const i=dp.isClockWise,s=this.subPaths;if(0===s.length)return[];if(!0===e)return n(s);let o,a,l;const c=[];if(1===s.length)return a=s[0],(l=new Yd).curves=a.curves,c.push(l),c;let h=!i(s[0].getPoints());h=t?!h:h;const u=[],p=[];let d,m,f=[],g=0;p[g]=void 0,f[g]=[];for(let x=0,v=s.length;x<v;x++)o=i(d=(a=s[x]).getPoints()),(o=t?!o:o)?(!h&&p[g]&&g++,p[g]={s:new Yd,p:d},p[g].s.curves=a.curves,h&&g++,f[g]=[]):f[g].push({h:a,p:d[0]});if(!p[0])return n(s);if(p.length>1){let t=!1;const e=[];for(let n=0,r=p.length;n<r;n++)u[n]=[];for(let n=0,i=p.length;n<i;n++){const i=f[n];for(let s=0;s<i.length;s++){const o=i[s];let a=!0;for(let i=0;i<p.length;i++)r(o.p,p[i].p)&&(n!==i&&e.push({froms:n,tos:i,hole:s}),a?(a=!1,u[i].push(o)):t=!0);a&&u[n].push(o)}}e.length>0&&(t||(f=u))}for(let x=0,v=p.length;x<v;x++){l=p[x].s,c.push(l);for(let t=0,e=(m=f[x]).length;t<e;t++)l.holes.push(m[t].h)}return c}}exports.ShapePath=Tm;class Em{constructor(t){this.type="Font",this.data=t}generateShapes(t,e=100){const n=[],r=Am(t,e,this.data);for(let i=0,s=r.length;i<s;i++)Array.prototype.push.apply(n,r[i].toShapes());return n}}function Am(t,e,n){const r=Array.from(t),i=e/n.resolution,s=(n.boundingBox.yMax-n.boundingBox.yMin+n.underlineThickness)*i,o=[];let a=0,l=0;for(let c=0;c<r.length;c++){const t=r[c];if("\n"===t)a=0,l-=s;else{const e=Lm(t,i,a,l,n);a+=e.offsetX,o.push(e.path)}}return o}function Lm(t,e,n,r,i){const s=i.glyphs[t]||i.glyphs["?"];if(!s)return void console.error('THREE.Font: character "'+t+'" does not exists in font family '+i.familyName+".");const o=new Tm;let a,l,c,h,u,p,d,m;if(s.o){const t=s._cachedOutline||(s._cachedOutline=s.o.split(" "));for(let i=0,s=t.length;i<s;){switch(t[i++]){case"m":a=t[i++]*e+n,l=t[i++]*e+r,o.moveTo(a,l);break;case"l":a=t[i++]*e+n,l=t[i++]*e+r,o.lineTo(a,l);break;case"q":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,o.quadraticCurveTo(u,p,c,h);break;case"b":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,d=t[i++]*e+n,m=t[i++]*e+r,o.bezierCurveTo(u,p,d,m,c,h)}}}return{offsetX:s.ha*e,path:o}}exports.Font=Em,Em.prototype.isFont=!0;class Rm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(t){let n;try{n=JSON.parse(t)}catch(s){console.warn("THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead."),n=JSON.parse(t.substring(65,t.length-2))}const r=i.parse(n);e&&e(r)},n,r)}parse(t){return new Em(t)}}let Cm;exports.FontLoader=Rm;const Pm={getContext:function(){return void 0===Cm&&(Cm=new(window.AudioContext||window.webkitAudioContext)),Cm},setContext:function(t){Cm=t}};exports.AudioContext=Pm;class Dm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setResponseType("arraybuffer"),s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{const o=n.slice(0);Pm.getContext().decodeAudioData(o,function(t){e(t)})}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}}exports.AudioLoader=Dm;class Im extends mm{constructor(t,e,n=1){super(void 0,n);const r=(new xi).set(t),i=(new xi).set(e),s=new Yn(r.r,r.g,r.b),o=new Yn(i.r,i.g,i.b),a=Math.sqrt(Math.PI),l=a*Math.sqrt(.75);this.sh.coefficients[0].copy(s).add(o).multiplyScalar(a),this.sh.coefficients[1].copy(s).sub(o).multiplyScalar(l)}}exports.HemisphereLightProbe=Im,Im.prototype.isHemisphereLightProbe=!0;class Bm extends mm{constructor(t,e=1){super(void 0,e);const n=(new xi).set(t);this.sh.coefficients[0].set(n.r,n.g,n.b).multiplyScalar(2*Math.sqrt(Math.PI))}}exports.AmbientLightProbe=Bm,Bm.prototype.isAmbientLightProbe=!0;const Nm=new wr,Fm=new wr;class Om{constructor(){this.type="StereoCamera",this.aspect=1,this.eyeSep=.064,this.cameraL=new xs,this.cameraL.layers.enable(1),this.cameraL.matrixAutoUpdate=!1,this.cameraR=new xs,this.cameraR.layers.enable(2),this.cameraR.matrixAutoUpdate=!1,this._cache={focus:null,fov:null,aspect:null,near:null,far:null,zoom:null,eyeSep:null}}update(t){const e=this._cache;if(e.focus!==t.focus||e.fov!==t.fov||e.aspect!==t.aspect*this.aspect||e.near!==t.near||e.far!==t.far||e.zoom!==t.zoom||e.eyeSep!==this.eyeSep){e.focus=t.focus,e.fov=t.fov,e.aspect=t.aspect*this.aspect,e.near=t.near,e.far=t.far,e.zoom=t.zoom,e.eyeSep=this.eyeSep;const n=t.projectionMatrix.clone(),r=e.eyeSep/2,i=r*e.near/e.focus,s=e.near*Math.tan(Fn.DEG2RAD*e.fov*.5)/e.zoom;let o,a;Fm.elements[12]=-r,Nm.elements[12]=r,o=-s*e.aspect+i,a=s*e.aspect+i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraL.projectionMatrix.copy(n),o=-s*e.aspect-i,a=s*e.aspect-i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraR.projectionMatrix.copy(n)}this.cameraL.matrixWorld.copy(t.matrixWorld).multiply(Fm),this.cameraR.matrixWorld.copy(t.matrixWorld).multiply(Nm)}}exports.StereoCamera=Om;class zm{constructor(t){this.autoStart=void 0===t||t,this.startTime=0,this.oldTime=0,this.elapsedTime=0,this.running=!1}start(){this.startTime=Gm(),this.oldTime=this.startTime,this.elapsedTime=0,this.running=!0}stop(){this.getElapsedTime(),this.running=!1,this.autoStart=!1}getElapsedTime(){return this.getDelta(),this.elapsedTime}getDelta(){let t=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){const e=Gm();t=(e-this.oldTime)/1e3,this.oldTime=e,this.elapsedTime+=t}return t}}function Gm(){return("undefined"==typeof performance?Date:performance).now()}exports.Clock=zm;const Hm=new Yn,Um=new Xn,km=new Yn,Vm=new Yn;class Wm extends Xr{constructor(){super(),this.type="AudioListener",this.context=Pm.getContext(),this.gain=this.context.createGain(),this.gain.connect(this.context.destination),this.filter=null,this.timeDelta=0,this._clock=new zm}getInput(){return this.gain}removeFilter(){return null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null),this}getFilter(){return this.filter}setFilter(t){return null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):this.gain.disconnect(this.context.destination),this.filter=t,this.gain.connect(this.filter),this.filter.connect(this.context.destination),this}getMasterVolume(){return this.gain.gain.value}setMasterVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}updateMatrixWorld(t){super.updateMatrixWorld(t);const e=this.context.listener,n=this.up;if(this.timeDelta=this._clock.getDelta(),this.matrixWorld.decompose(Hm,Um,km),Vm.set(0,0,-1).applyQuaternion(Um),e.positionX){const t=this.context.currentTime+this.timeDelta;e.positionX.linearRampToValueAtTime(Hm.x,t),e.positionY.linearRampToValueAtTime(Hm.y,t),e.positionZ.linearRampToValueAtTime(Hm.z,t),e.forwardX.linearRampToValueAtTime(Vm.x,t),e.forwardY.linearRampToValueAtTime(Vm.y,t),e.forwardZ.linearRampToValueAtTime(Vm.z,t),e.upX.linearRampToValueAtTime(n.x,t),e.upY.linearRampToValueAtTime(n.y,t),e.upZ.linearRampToValueAtTime(n.z,t)}else e.setPosition(Hm.x,Hm.y,Hm.z),e.setOrientation(Vm.x,Vm.y,Vm.z,n.x,n.y,n.z)}}exports.AudioListener=Wm;class jm extends Xr{constructor(t){super(),this.type="Audio",this.listener=t,this.context=t.context,this.gain=this.context.createGain(),this.gain.connect(t.getInput()),this.autoplay=!1,this.buffer=null,this.detune=0,this.loop=!1,this.loopStart=0,this.loopEnd=0,this.offset=0,this.duration=void 0,this.playbackRate=1,this.isPlaying=!1,this.hasPlaybackControl=!0,this.source=null,this.sourceType="empty",this._startedAt=0,this._progress=0,this._connected=!1,this.filters=[]}getOutput(){return this.gain}setNodeSource(t){return this.hasPlaybackControl=!1,this.sourceType="audioNode",this.source=t,this.connect(),this}setMediaElementSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaNode",this.source=this.context.createMediaElementSource(t),this.connect(),this}setMediaStreamSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaStreamNode",this.source=this.context.createMediaStreamSource(t),this.connect(),this}setBuffer(t){return this.buffer=t,this.sourceType="buffer",this.autoplay&&this.play(),this}play(t=0){if(!0===this.isPlaying)return void console.warn("THREE.Audio: Audio is already playing.");if(!1===this.hasPlaybackControl)return void console.warn("THREE.Audio: this Audio has no playback control.");this._startedAt=this.context.currentTime+t;const e=this.context.createBufferSource();return e.buffer=this.buffer,e.loop=this.loop,e.loopStart=this.loopStart,e.loopEnd=this.loopEnd,e.onended=this.onEnded.bind(this),e.start(this._startedAt,this._progress+this.offset,this.duration),this.isPlaying=!0,this.source=e,this.setDetune(this.detune),this.setPlaybackRate(this.playbackRate),this.connect()}pause(){if(!1!==this.hasPlaybackControl)return!0===this.isPlaying&&(this._progress+=Math.max(this.context.currentTime-this._startedAt,0)*this.playbackRate,!0===this.loop&&(this._progress=this._progress%(this.duration||this.buffer.duration)),this.source.stop(),this.source.onended=null,this.isPlaying=!1),this;console.warn("THREE.Audio: this Audio has no playback control.")}stop(){if(!1!==this.hasPlaybackControl)return this._progress=0,this.source.stop(),this.source.onended=null,this.isPlaying=!1,this;console.warn("THREE.Audio: this Audio has no playback control.")}connect(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].connect(this.filters[t]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());return this._connected=!0,this}disconnect(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].disconnect(this.filters[t]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this._connected=!1,this}getFilters(){return this.filters}setFilters(t){return t||(t=[]),!0===this._connected?(this.disconnect(),this.filters=t.slice(),this.connect()):this.filters=t.slice(),this}setDetune(t){if(this.detune=t,void 0!==this.source.detune)return!0===this.isPlaying&&this.source.detune.setTargetAtTime(this.detune,this.context.currentTime,.01),this}getDetune(){return this.detune}getFilter(){return this.getFilters()[0]}setFilter(t){return this.setFilters(t?[t]:[])}setPlaybackRate(t){if(!1!==this.hasPlaybackControl)return this.playbackRate=t,!0===this.isPlaying&&this.source.playbackRate.setTargetAtTime(this.playbackRate,this.context.currentTime,.01),this;console.warn("THREE.Audio: this Audio has no playback control.")}getPlaybackRate(){return this.playbackRate}onEnded(){this.isPlaying=!1}getLoop(){return!1===this.hasPlaybackControl?(console.warn("THREE.Audio: this Audio has no playback control."),!1):this.loop}setLoop(t){if(!1!==this.hasPlaybackControl)return this.loop=t,!0===this.isPlaying&&(this.source.loop=this.loop),this;console.warn("THREE.Audio: this Audio has no playback control.")}setLoopStart(t){return this.loopStart=t,this}setLoopEnd(t){return this.loopEnd=t,this}getVolume(){return this.gain.gain.value}setVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}}exports.Audio=jm;const qm=new Yn,Xm=new Xn,Ym=new Yn,Zm=new Yn;class Jm extends jm{constructor(t){super(t),this.panner=this.context.createPanner(),this.panner.panningModel="HRTF",this.panner.connect(this.gain)}getOutput(){return this.panner}getRefDistance(){return this.panner.refDistance}setRefDistance(t){return this.panner.refDistance=t,this}getRolloffFactor(){return this.panner.rolloffFactor}setRolloffFactor(t){return this.panner.rolloffFactor=t,this}getDistanceModel(){return this.panner.distanceModel}setDistanceModel(t){return this.panner.distanceModel=t,this}getMaxDistance(){return this.panner.maxDistance}setMaxDistance(t){return this.panner.maxDistance=t,this}setDirectionalCone(t,e,n){return this.panner.coneInnerAngle=t,this.panner.coneOuterAngle=e,this.panner.coneOuterGain=n,this}updateMatrixWorld(t){if(super.updateMatrixWorld(t),!0===this.hasPlaybackControl&&!1===this.isPlaying)return;this.matrixWorld.decompose(qm,Xm,Ym),Zm.set(0,0,1).applyQuaternion(Xm);const e=this.panner;if(e.positionX){const t=this.context.currentTime+this.listener.timeDelta;e.positionX.linearRampToValueAtTime(qm.x,t),e.positionY.linearRampToValueAtTime(qm.y,t),e.positionZ.linearRampToValueAtTime(qm.z,t),e.orientationX.linearRampToValueAtTime(Zm.x,t),e.orientationY.linearRampToValueAtTime(Zm.y,t),e.orientationZ.linearRampToValueAtTime(Zm.z,t)}else e.setPosition(qm.x,qm.y,qm.z),e.setOrientation(Zm.x,Zm.y,Zm.z)}}exports.PositionalAudio=Jm;class Qm{constructor(t,e=2048){this.analyser=t.context.createAnalyser(),this.analyser.fftSize=e,this.data=new Uint8Array(this.analyser.frequencyBinCount),t.getOutput().connect(this.analyser)}getFrequencyData(){return this.analyser.getByteFrequencyData(this.data),this.data}getAverageFrequency(){let t=0;const e=this.getFrequencyData();for(let n=0;n<e.length;n++)t+=e[n];return t/e.length}}exports.AudioAnalyser=Qm;class Km{constructor(t,e,n){let r,i,s;switch(this.binding=t,this.valueSize=n,e){case"quaternion":r=this._slerp,i=this._slerpAdditive,s=this._setAdditiveIdentityQuaternion,this.buffer=new Float64Array(6*n),this._workIndex=5;break;case"string":case"bool":r=this._select,i=this._select,s=this._setAdditiveIdentityOther,this.buffer=new Array(5*n);break;default:r=this._lerp,i=this._lerpAdditive,s=this._setAdditiveIdentityNumeric,this.buffer=new Float64Array(5*n)}this._mixBufferRegion=r,this._mixBufferRegionAdditive=i,this._setIdentity=s,this._origIndex=3,this._addIndex=4,this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,this.useCount=0,this.referenceCount=0}accumulate(t,e){const n=this.buffer,r=this.valueSize,i=t*r+r;let s=this.cumulativeWeight;if(0===s){for(let t=0;t!==r;++t)n[i+t]=n[t];s=e}else{const t=e/(s+=e);this._mixBufferRegion(n,i,0,t,r)}this.cumulativeWeight=s}accumulateAdditive(t){const e=this.buffer,n=this.valueSize,r=n*this._addIndex;0===this.cumulativeWeightAdditive&&this._setIdentity(),this._mixBufferRegionAdditive(e,r,0,t,n),this.cumulativeWeightAdditive+=t}apply(t){const e=this.valueSize,n=this.buffer,r=t*e+e,i=this.cumulativeWeight,s=this.cumulativeWeightAdditive,o=this.binding;if(this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,i<1){const t=e*this._origIndex;this._mixBufferRegion(n,r,t,1-i,e)}s>0&&this._mixBufferRegionAdditive(n,r,this._addIndex*e,1,e);for(let a=e,l=e+e;a!==l;++a)if(n[a]!==n[a+e]){o.setValue(n,r);break}}saveOriginalState(){const t=this.binding,e=this.buffer,n=this.valueSize,r=n*this._origIndex;t.getValue(e,r);for(let i=n,s=r;i!==s;++i)e[i]=e[r+i%n];this._setIdentity(),this.cumulativeWeight=0,this.cumulativeWeightAdditive=0}restoreOriginalState(){const t=3*this.valueSize;this.binding.setValue(this.buffer,t)}_setAdditiveIdentityNumeric(){const t=this._addIndex*this.valueSize,e=t+this.valueSize;for(let n=t;n<e;n++)this.buffer[n]=0}_setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric(),this.buffer[this._addIndex*this.valueSize+3]=1}_setAdditiveIdentityOther(){const t=this._origIndex*this.valueSize,e=this._addIndex*this.valueSize;for(let n=0;n<this.valueSize;n++)this.buffer[e+n]=this.buffer[t+n]}_select(t,e,n,r,i){if(r>=.5)for(let s=0;s!==i;++s)t[e+s]=t[n+s]}_slerp(t,e,n,r){Xn.slerpFlat(t,e,t,e,t,n,r)}_slerpAdditive(t,e,n,r,i){const s=this._workIndex*i;Xn.multiplyQuaternionsFlat(t,s,t,e,t,n),Xn.slerpFlat(t,e,t,e,t,s,r)}_lerp(t,e,n,r,i){const s=1-r;for(let o=0;o!==i;++o){const i=e+o;t[i]=t[i]*s+t[n+o]*r}}_lerpAdditive(t,e,n,r,i){for(let s=0;s!==i;++s){const i=e+s;t[i]=t[i]+t[n+s]*r}}}exports.PropertyMixer=Km;const $m="\\[\\]\\.:\\/",tf=new RegExp("[\\[\\]\\.:\\/]","g"),ef="[^\\[\\]\\.:\\/]",nf="[^"+"\\[\\]\\.:\\/".replace("\\.","")+"]",rf=/((?:WC+[\/:])*)/.source.replace("WC",ef),sf=/(WCOD+)?/.source.replace("WCOD",nf),of=/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC",ef),af=/\.(WC+)(?:\[(.+)\])?/.source.replace("WC",ef),lf=new RegExp("^"+rf+sf+of+af+"$"),cf=["material","materials","bones"];function hf(t,e,n){const r=n||uf.parseTrackName(e);this._targetGroup=t,this._bindings=t.subscribe_(e,r)}function uf(t,e,n){this.path=e,this.parsedPath=n||uf.parseTrackName(e),this.node=uf.findNode(t,this.parsedPath.nodeName)||t,this.rootNode=t}Object.assign(hf.prototype,{getValue:function(t,e){this.bind();const n=this._targetGroup.nCachedObjects_,r=this._bindings[n];void 0!==r&&r.getValue(t,e)},setValue:function(t,e){const n=this._bindings;for(let r=this._targetGroup.nCachedObjects_,i=n.length;r!==i;++r)n[r].setValue(t,e)},bind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].bind()},unbind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].unbind()}}),Object.assign(uf,{Composite:hf,create:function(t,e,n){return t&&t.isAnimationObjectGroup?new uf.Composite(t,e,n):new uf(t,e,n)},sanitizeNodeName:function(t){return t.replace(/\s/g,"_").replace(tf,"")},parseTrackName:function(t){const e=lf.exec(t);if(!e)throw new Error("PropertyBinding: Cannot parse trackName: "+t);const n={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},r=n.nodeName&&n.nodeName.lastIndexOf(".");if(void 0!==r&&-1!==r){const t=n.nodeName.substring(r+1);-1!==cf.indexOf(t)&&(n.nodeName=n.nodeName.substring(0,r),n.objectName=t)}if(null===n.propertyName||0===n.propertyName.length)throw new Error("PropertyBinding: can not parse propertyName from trackName: "+t);return n},findNode:function(t,e){if(!e||""===e||"."===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){const n=t.skeleton.getBoneByName(e);if(void 0!==n)return n}if(t.children){const n=function(t){for(let r=0;r<t.length;r++){const i=t[r];if(i.name===e||i.uuid===e)return i;const s=n(i.children);if(s)return s}return null},r=n(t.children);if(r)return r}return null}}),Object.assign(uf.prototype,{_getValue_unavailable:function(){},_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(t,e){t[e]=this.node[this.propertyName]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)t[e++]=n[r]},function(t,e){t[e]=this.resolvedProperty[this.propertyIndex]},function(t,e){this.resolvedProperty.toArray(t,e)}],SetterByBindingTypeAndVersioning:[[function(t,e){this.targetObject[this.propertyName]=t[e]},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.needsUpdate=!0},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty[this.propertyIndex]=t[e]},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty.fromArray(t,e)},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}]],getValue:function(t,e){this.bind(),this.getValue(t,e)},setValue:function(t,e){this.bind(),this.setValue(t,e)},bind:function(){let t=this.node;const e=this.parsedPath,n=e.objectName,r=e.propertyName;let i=e.propertyIndex;if(t||(t=uf.findNode(this.rootNode,e.nodeName)||this.rootNode,this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.error("THREE.PropertyBinding: Trying to update node for track: "+this.path+" but it wasn't found.");if(n){let r=e.objectIndex;switch(n){case"materials":if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.materials)return void console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);t=t.material.materials;break;case"bones":if(!t.skeleton)return void console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);t=t.skeleton.bones;for(let e=0;e<t.length;e++)if(t[e].name===r){r=e;break}break;default:if(void 0===t[n])return void console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",this);t=t[n]}if(void 0!==r){if(void 0===t[r])return void console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,t);t=t[r]}}const s=t[r];if(void 0===s){const n=e.nodeName;return void console.error("THREE.PropertyBinding: Trying to update property for track: "+n+"."+r+" but it wasn't found.",t)}let o=this.Versioning.None;this.targetObject=t,void 0!==t.needsUpdate?o=this.Versioning.NeedsUpdate:void 0!==t.matrixWorldNeedsUpdate&&(o=this.Versioning.MatrixWorldNeedsUpdate);let a=this.BindingType.Direct;if(void 0!==i){if("morphTargetInfluences"===r){if(!t.geometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);if(!t.geometry.isBufferGeometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.",this);if(!t.geometry.morphAttributes)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);void 0!==t.morphTargetDictionary[i]&&(i=t.morphTargetDictionary[i])}a=this.BindingType.ArrayElement,this.resolvedProperty=s,this.propertyIndex=i}else void 0!==s.fromArray&&void 0!==s.toArray?(a=this.BindingType.HasFromToArray,this.resolvedProperty=s):Array.isArray(s)?(a=this.BindingType.EntireArray,this.resolvedProperty=s):this.propertyName=r;this.getValue=this.GetterByBindingType[a],this.setValue=this.SetterByBindingTypeAndVersioning[a][o]},unbind:function(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}),Object.assign(uf.prototype,{_getValue_unbound:uf.prototype.getValue,_setValue_unbound:uf.prototype.setValue});class pf{constructor(){this.uuid=Fn.generateUUID(),this._objects=Array.prototype.slice.call(arguments),this.nCachedObjects_=0;const t={};this._indicesByUUID=t;for(let n=0,r=arguments.length;n!==r;++n)t[arguments[n].uuid]=n;this._paths=[],this._parsedPaths=[],this._bindings=[],this._bindingsIndicesByPath={};const e=this;this.stats={objects:{get total(){return e._objects.length},get inUse(){return this.total-e.nCachedObjects_}},get bindingsPerObject(){return e._bindings.length}}}add(){const t=this._objects,e=this._indicesByUUID,n=this._paths,r=this._parsedPaths,i=this._bindings,s=i.length;let o=void 0,a=t.length,l=this.nCachedObjects_;for(let c=0,h=arguments.length;c!==h;++c){const h=arguments[c],u=h.uuid;let p=e[u];if(void 0===p){p=a++,e[u]=p,t.push(h);for(let t=0,e=s;t!==e;++t)i[t].push(new uf(h,n[t],r[t]))}else if(p<l){o=t[p];const a=--l,c=t[a];e[c.uuid]=p,t[p]=c,e[u]=a,t[a]=h;for(let t=0,e=s;t!==e;++t){const e=i[t],s=e[a];let o=e[p];e[p]=s,void 0===o&&(o=new uf(h,n[t],r[t])),e[a]=o}}else t[p]!==o&&console.error("THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.")}this.nCachedObjects_=l}remove(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_;for(let s=0,o=arguments.length;s!==o;++s){const o=arguments[s],a=o.uuid,l=e[a];if(void 0!==l&&l>=i){const s=i++,c=t[s];e[c.uuid]=l,t[l]=c,e[a]=s,t[s]=o;for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[s],i=e[l];e[l]=r,e[s]=i}}}this.nCachedObjects_=i}uncache(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_,s=t.length;for(let o=0,a=arguments.length;o!==a;++o){const a=arguments[o].uuid,l=e[a];if(void 0!==l)if(delete e[a],l<i){const o=--i,a=t[o],c=--s,h=t[c];e[a.uuid]=l,t[l]=a,e[h.uuid]=o,t[o]=h,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[o],i=e[c];e[l]=r,e[o]=i,e.pop()}}else{const i=--s,o=t[i];i>0&&(e[o.uuid]=l),t[l]=o,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t];e[l]=e[i],e.pop()}}}this.nCachedObjects_=i}subscribe_(t,e){const n=this._bindingsIndicesByPath;let r=n[t];const i=this._bindings;if(void 0!==r)return i[r];const s=this._paths,o=this._parsedPaths,a=this._objects,l=a.length,c=this.nCachedObjects_,h=new Array(l);r=i.length,n[t]=r,s.push(t),o.push(e),i.push(h);for(let u=c,p=a.length;u!==p;++u){const n=a[u];h[u]=new uf(n,t,e)}return h}unsubscribe_(t){const e=this._bindingsIndicesByPath,n=e[t];if(void 0!==n){const r=this._paths,i=this._parsedPaths,s=this._bindings,o=s.length-1,a=s[o];e[t[o]]=n,s[n]=a,s.pop(),i[n]=i[o],i.pop(),r[n]=r[o],r.pop()}}}exports.AnimationObjectGroup=pf,pf.prototype.isAnimationObjectGroup=!0;class df{constructor(t,e,n=null,r=e.blendMode){this._mixer=t,this._clip=e,this._localRoot=n,this.blendMode=r;const i=e.tracks,s=i.length,o=new Array(s),a={endingStart:Ge,endingEnd:Ge};for(let l=0;l!==s;++l){const t=i[l].createInterpolant(null);o[l]=t,t.settings=a}this._interpolantSettings=a,this._interpolants=o,this._propertyBindings=new Array(s),this._cacheIndex=null,this._byClipCacheIndex=null,this._timeScaleInterpolant=null,this._weightInterpolant=null,this.loop=Be,this._loopCount=-1,this._startTime=null,this.time=0,this.timeScale=1,this._effectiveTimeScale=1,this.weight=1,this._effectiveWeight=1,this.repetitions=1/0,this.paused=!1,this.enabled=!0,this.clampWhenFinished=!1,this.zeroSlopeAtStart=!0,this.zeroSlopeAtEnd=!0}play(){return this._mixer._activateAction(this),this}stop(){return this._mixer._deactivateAction(this),this.reset()}reset(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()}isRunning(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)}isScheduled(){return this._mixer._isActiveAction(this)}startAt(t){return this._startTime=t,this}setLoop(t,e){return this.loop=t,this.repetitions=e,this}setEffectiveWeight(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()}getEffectiveWeight(){return this._effectiveWeight}fadeIn(t){return this._scheduleFading(t,0,1)}fadeOut(t){return this._scheduleFading(t,1,0)}crossFadeFrom(t,e,n){if(t.fadeOut(e),this.fadeIn(e),n){const n=this._clip.duration,r=t._clip.duration,i=r/n,s=n/r;t.warp(1,i,e),this.warp(s,1,e)}return this}crossFadeTo(t,e,n){return t.crossFadeFrom(this,e,n)}stopFading(){const t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}setEffectiveTimeScale(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()}getEffectiveTimeScale(){return this._effectiveTimeScale}setDuration(t){return this.timeScale=this._clip.duration/t,this.stopWarping()}syncWith(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()}halt(t){return this.warp(this._effectiveTimeScale,0,t)}warp(t,e,n){const r=this._mixer,i=r.time,s=this.timeScale;let o=this._timeScaleInterpolant;null===o&&(o=r._lendControlInterpolant(),this._timeScaleInterpolant=o);const a=o.parameterPositions,l=o.sampleValues;return a[0]=i,a[1]=i+n,l[0]=t/s,l[1]=e/s,this}stopWarping(){const t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}getMixer(){return this._mixer}getClip(){return this._clip}getRoot(){return this._localRoot||this._mixer._root}_update(t,e,n,r){if(!this.enabled)return void this._updateWeight(t);const i=this._startTime;if(null!==i){const r=(t-i)*n;if(r<0||0===n)return;this._startTime=null,e=n*r}e*=this._updateTimeScale(t);const s=this._updateTime(e),o=this._updateWeight(t);if(o>0){const t=this._interpolants,e=this._propertyBindings;switch(this.blendMode){case Ve:for(let n=0,r=t.length;n!==r;++n)t[n].evaluate(s),e[n].accumulateAdditive(o);break;case ke:default:for(let n=0,i=t.length;n!==i;++n)t[n].evaluate(s),e[n].accumulate(r,o)}}}_updateWeight(t){let e=0;if(this.enabled){e=this.weight;const n=this._weightInterpolant;if(null!==n){const r=n.evaluate(t)[0];e*=r,t>n.parameterPositions[1]&&(this.stopFading(),0===r&&(this.enabled=!1))}}return this._effectiveWeight=e,e}_updateTimeScale(t){let e=0;if(!this.paused){e=this.timeScale;const n=this._timeScaleInterpolant;if(null!==n){e*=n.evaluate(t)[0],t>n.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e}_updateTime(t){const e=this._clip.duration,n=this.loop;let r=this.time+t,i=this._loopCount;const s=n===Ne;if(0===t)return-1===i?r:s&&1==(1&i)?e-r:r;if(n===Ie){-1===i&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(r>=e)r=e;else{if(!(r<0)){this.time=r;break t}r=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t<0?-1:1})}}else{if(-1===i&&(t>=0?(i=0,this._setEndings(!0,0===this.repetitions,s)):this._setEndings(0===this.repetitions,!0,s)),r>=e||r<0){const n=Math.floor(r/e);r-=e*n,i+=Math.abs(n);const o=this.repetitions-i;if(o<=0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,r=t>0?e:0,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t>0?1:-1});else{if(1===o){const e=t<0;this._setEndings(e,!e,s)}else this._setEndings(!1,!1,s);this._loopCount=i,this.time=r,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:n})}}else this.time=r;if(s&&1==(1&i))return e-r}return r}_setEndings(t,e,n){const r=this._interpolantSettings;n?(r.endingStart=He,r.endingEnd=He):(r.endingStart=t?this.zeroSlopeAtStart?He:Ge:Ue,r.endingEnd=e?this.zeroSlopeAtEnd?He:Ge:Ue)}_scheduleFading(t,e,n){const r=this._mixer,i=r.time;let s=this._weightInterpolant;null===s&&(s=r._lendControlInterpolant(),this._weightInterpolant=s);const o=s.parameterPositions,a=s.sampleValues;return o[0]=i,a[0]=e,o[1]=i+t,a[1]=n,this}}class mf extends In{constructor(t){super(),this._root=t,this._initMemoryManager(),this._accuIndex=0,this.time=0,this.timeScale=1}_bindAction(t,e){const n=t._localRoot||this._root,r=t._clip.tracks,i=r.length,s=t._propertyBindings,o=t._interpolants,a=n.uuid,l=this._bindingsByRootAndName;let c=l[a];void 0===c&&(c={},l[a]=c);for(let h=0;h!==i;++h){const t=r[h],i=t.name;let l=c[i];if(void 0!==l)s[h]=l;else{if(void 0!==(l=s[h])){null===l._cacheIndex&&(++l.referenceCount,this._addInactiveBinding(l,a,i));continue}const r=e&&e._propertyBindings[h].binding.parsedPath;++(l=new Km(uf.create(n,i,r),t.ValueTypeName,t.getValueSize())).referenceCount,this._addInactiveBinding(l,a,i),s[h]=l}o[h].resultBuffer=l.buffer}}_activateAction(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){const e=(t._localRoot||this._root).uuid,n=t._clip.uuid,r=this._actionsByClip[n];this._bindAction(t,r&&r.knownActions[0]),this._addInactiveAction(t,n,e)}const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==n.useCount++&&(this._lendBinding(n),n.saveOriginalState())}this._lendAction(t)}}_deactivateAction(t){if(this._isActiveAction(t)){const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==--n.useCount&&(n.restoreOriginalState(),this._takeBackBinding(n))}this._takeBackAction(t)}}_initMemoryManager(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;const t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}}_isActiveAction(t){const e=t._cacheIndex;return null!==e&&e<this._nActiveActions}_addInactiveAction(t,e,n){const r=this._actions,i=this._actionsByClip;let s=i[e];if(void 0===s)s={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,i[e]=s;else{const e=s.knownActions;t._byClipCacheIndex=e.length,e.push(t)}t._cacheIndex=r.length,r.push(t),s.actionByRoot[n]=t}_removeInactiveAction(t){const e=this._actions,n=e[e.length-1],r=t._cacheIndex;n._cacheIndex=r,e[r]=n,e.pop(),t._cacheIndex=null;const i=t._clip.uuid,s=this._actionsByClip,o=s[i],a=o.knownActions,l=a[a.length-1],c=t._byClipCacheIndex;l._byClipCacheIndex=c,a[c]=l,a.pop(),t._byClipCacheIndex=null,delete o.actionByRoot[(t._localRoot||this._root).uuid],0===a.length&&delete s[i],this._removeInactiveBindingsForAction(t)}_removeInactiveBindingsForAction(t){const e=t._propertyBindings;for(let n=0,r=e.length;n!==r;++n){const t=e[n];0==--t.referenceCount&&this._removeInactiveBinding(t)}}_lendAction(t){const e=this._actions,n=t._cacheIndex,r=this._nActiveActions++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackAction(t){const e=this._actions,n=t._cacheIndex,r=--this._nActiveActions,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_addInactiveBinding(t,e,n){const r=this._bindingsByRootAndName,i=this._bindings;let s=r[e];void 0===s&&(s={},r[e]=s),s[n]=t,t._cacheIndex=i.length,i.push(t)}_removeInactiveBinding(t){const e=this._bindings,n=t.binding,r=n.rootNode.uuid,i=n.path,s=this._bindingsByRootAndName,o=s[r],a=e[e.length-1],l=t._cacheIndex;a._cacheIndex=l,e[l]=a,e.pop(),delete o[i],0===Object.keys(o).length&&delete s[r]}_lendBinding(t){const e=this._bindings,n=t._cacheIndex,r=this._nActiveBindings++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackBinding(t){const e=this._bindings,n=t._cacheIndex,r=--this._nActiveBindings,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_lendControlInterpolant(){const t=this._controlInterpolants,e=this._nActiveControlInterpolants++;let n=t[e];return void 0===n&&((n=new Yp(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer)).__cacheIndex=e,t[e]=n),n}_takeBackControlInterpolant(t){const e=this._controlInterpolants,n=t.__cacheIndex,r=--this._nActiveControlInterpolants,i=e[r];t.__cacheIndex=r,e[r]=t,i.__cacheIndex=n,e[n]=i}clipAction(t,e,n){const r=e||this._root,i=r.uuid;let s="string"==typeof t?id.findByName(r,t):t;const o=null!==s?s.uuid:t,a=this._actionsByClip[o];let l=null;if(void 0===n&&(n=null!==s?s.blendMode:ke),void 0!==a){const t=a.actionByRoot[i];if(void 0!==t&&t.blendMode===n)return t;l=a.knownActions[0],null===s&&(s=l._clip)}if(null===s)return null;const c=new df(this,s,e,n);return this._bindAction(c,l),this._addInactiveAction(c,o,i),c}existingAction(t,e){const n=e||this._root,r=n.uuid,i="string"==typeof t?id.findByName(n,t):t,s=i?i.uuid:t,o=this._actionsByClip[s];return void 0!==o&&o.actionByRoot[r]||null}stopAllAction(){const t=this._actions;for(let e=this._nActiveActions-1;e>=0;--e)t[e].stop();return this}update(t){t*=this.timeScale;const e=this._actions,n=this._nActiveActions,r=this.time+=t,i=Math.sign(t),s=this._accuIndex^=1;for(let l=0;l!==n;++l){e[l]._update(r,t,i,s)}const o=this._bindings,a=this._nActiveBindings;for(let l=0;l!==a;++l)o[l].apply(s);return this}setTime(t){this.time=0;for(let e=0;e<this._actions.length;e++)this._actions[e].time=0;return this.update(t)}getRoot(){return this._root}uncacheClip(t){const e=this._actions,n=t.uuid,r=this._actionsByClip,i=r[n];if(void 0!==i){const t=i.knownActions;for(let n=0,r=t.length;n!==r;++n){const r=t[n];this._deactivateAction(r);const i=r._cacheIndex,s=e[e.length-1];r._cacheIndex=null,r._byClipCacheIndex=null,s._cacheIndex=i,e[i]=s,e.pop(),this._removeInactiveBindingsForAction(r)}delete r[n]}}uncacheRoot(t){const e=t.uuid,n=this._actionsByClip;for(const i in n){const t=n[i].actionByRoot[e];void 0!==t&&(this._deactivateAction(t),this._removeInactiveAction(t))}const r=this._bindingsByRootAndName[e];if(void 0!==r)for(const i in r){const t=r[i];t.restoreOriginalState(),this._removeInactiveBinding(t)}}uncacheAction(t,e){const n=this.existingAction(t,e);null!==n&&(this._deactivateAction(n),this._removeInactiveAction(n))}}exports.AnimationMixer=mf,mf.prototype._controlInterpolantsResultBuffer=new Float32Array(1);class ff{constructor(t){"string"==typeof t&&(console.warn("THREE.Uniform: Type parameter is no longer needed."),t=arguments[1]),this.value=t}clone(){return new ff(void 0===this.value.clone?this.value:this.value.clone())}}function gf(t,e,n){_h.call(this,t,e),this.meshPerAttribute=n||1}function xf(t,e,n,r,i){this.buffer=t,this.type=e,this.itemSize=n,this.elementSize=r,this.count=i,this.version=0}function vf(t,e,n=0,r=1/0){this.ray=new br(t,e),this.near=n,this.far=r,this.camera=null,this.layers=new Ir,this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}},Object.defineProperties(this.params,{PointCloud:{get:function(){return console.warn("THREE.Raycaster: params.PointCloud has been renamed to params.Points."),this.Points}}})}function yf(t,e){return t.distance-e.distance}function _f(t,e,n,r){if(t.layers.test(e.layers)&&t.raycast(e,n),!0===r){const r=t.children;for(let t=0,i=r.length;t<i;t++)_f(r[t],e,n,!0)}}exports.Uniform=ff,gf.prototype=Object.assign(Object.create(_h.prototype),{constructor:gf,isInstancedInterleavedBuffer:!0,copy:function(t){return _h.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},clone:function(t){const e=_h.prototype.clone.call(this,t);return e.meshPerAttribute=this.meshPerAttribute,e},toJSON:function(t){const e=_h.prototype.toJSON.call(this,t);return e.isInstancedInterleavedBuffer=!0,e.meshPerAttribute=this.meshPerAttribute,e}}),Object.defineProperty(xf.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(xf.prototype,{isGLBufferAttribute:!0,setBuffer:function(t){return this.buffer=t,this},setType:function(t,e){return this.type=t,this.elementSize=e,this},setItemSize:function(t){return this.itemSize=t,this},setCount:function(t){return this.count=t,this}}),Object.assign(vf.prototype,{set:function(t,e){this.ray.set(t,e)},setFromCamera:function(t,e){e&&e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize(),this.camera=e):e&&e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld),this.camera=e):console.error("THREE.Raycaster: Unsupported camera type: "+e.type)},intersectObject:function(t,e=!1,n=[]){return _f(t,this,n,e),n.sort(yf),n},intersectObjects:function(t,e=!1,n=[]){for(let r=0,i=t.length;r<i;r++)_f(t[r],this,n,e);return n.sort(yf),n}});class bf{constructor(t=1,e=0,n=0){return this.radius=t,this.phi=e,this.theta=n,this}set(t,e,n){return this.radius=t,this.phi=e,this.theta=n,this}copy(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this}makeSafe(){return this.phi=Math.max(1e-6,Math.min(Math.PI-1e-6,this.phi)),this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+e*e+n*n),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t,n),this.phi=Math.acos(Fn.clamp(e/this.radius,-1,1))),this}clone(){return(new this.constructor).copy(this)}}exports.Spherical=bf;class wf{constructor(t=1,e=0,n=0){return this.radius=t,this.theta=e,this.y=n,this}set(t,e,n){return this.radius=t,this.theta=e,this.y=n,this}copy(t){return this.radius=t.radius,this.theta=t.theta,this.y=t.y,this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+n*n),this.theta=Math.atan2(t,n),this.y=e,this}clone(){return(new this.constructor).copy(this)}}exports.Cylindrical=wf;const Mf=new On;class Sf{constructor(t=new On(1/0,1/0),e=new On(-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=Mf.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=1/0,this.max.x=this.max.y=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y}getCenter(t){return void 0===t&&(console.warn("THREE.Box2: .getCenter() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box2: .getSize() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box2: .getParameter() target is now required"),e=new On),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y)}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box2: .clampPoint() target is now required"),e=new On),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return Mf.copy(t).clamp(this.min,this.max).sub(t).length()}intersect(t){return this.min.max(t.min),this.max.min(t.max),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box2=Sf,Sf.prototype.isBox2=!0;const Tf=new Yn,Ef=new Yn;class Af{constructor(t=new Yn,e=new Yn){this.start=t,this.end=e}set(t,e){return this.start.copy(t),this.end.copy(e),this}copy(t){return this.start.copy(t.start),this.end.copy(t.end),this}getCenter(t){return void 0===t&&(console.warn("THREE.Line3: .getCenter() target is now required"),t=new Yn),t.addVectors(this.start,this.end).multiplyScalar(.5)}delta(t){return void 0===t&&(console.warn("THREE.Line3: .delta() target is now required"),t=new Yn),t.subVectors(this.end,this.start)}distanceSq(){return this.start.distanceToSquared(this.end)}distance(){return this.start.distanceTo(this.end)}at(t,e){return void 0===e&&(console.warn("THREE.Line3: .at() target is now required"),e=new Yn),this.delta(e).multiplyScalar(t).add(this.start)}closestPointToPointParameter(t,e){Tf.subVectors(t,this.start),Ef.subVectors(this.end,this.start);const n=Ef.dot(Ef);let r=Ef.dot(Tf)/n;return e&&(r=Fn.clamp(r,0,1)),r}closestPointToPoint(t,e,n){const r=this.closestPointToPointParameter(t,e);return void 0===n&&(console.warn("THREE.Line3: .closestPointToPoint() target is now required"),n=new Yn),this.delta(n).multiplyScalar(r).add(this.start)}applyMatrix4(t){return this.start.applyMatrix4(t),this.end.applyMatrix4(t),this}equals(t){return t.start.equals(this.start)&&t.end.equals(this.end)}clone(){return(new this.constructor).copy(this)}}function Lf(t){Xr.call(this),this.material=t,this.render=function(){},this.hasPositions=!1,this.hasNormals=!1,this.hasColors=!1,this.hasUvs=!1,this.positionArray=null,this.normalArray=null,this.colorArray=null,this.uvArray=null,this.count=0}exports.Line3=Af,Lf.prototype=Object.create(Xr.prototype),Lf.prototype.constructor=Lf,Lf.prototype.isImmediateRenderObject=!0;const Rf=new Yn;class Cf extends Xr{constructor(t,e){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=e;const n=new ki,r=[0,0,0,0,0,1,0,0,0,1,0,1,0,0,0,-1,0,1,0,0,0,0,1,1,0,0,0,0,-1,1];for(let s=0,o=1,a=32;s<a;s++,o++){const t=s/a*Math.PI*2,e=o/a*Math.PI*2;r.push(Math.cos(t),Math.sin(t),1,Math.cos(e),Math.sin(e),1)}n.setAttribute("position",new Ci(r,3));const i=new ru({fog:!1,toneMapped:!1});this.cone=new pu(n,i),this.add(this.cone),this.update()}dispose(){this.cone.geometry.dispose(),this.cone.material.dispose()}update(){this.light.updateMatrixWorld();const t=this.light.distance?this.light.distance:1e3,e=t*Math.tan(this.light.angle);this.cone.scale.set(e,e,t),Rf.setFromMatrixPosition(this.light.target.matrixWorld),this.cone.lookAt(Rf),void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}exports.SpotLightHelper=Cf;const Pf=new Yn,Df=new wr,If=new wr;class Bf extends pu{constructor(t){const e=Nf(t),n=new ki,r=[],i=[],s=new xi(0,0,1),o=new xi(0,1,0);for(let a=0;a<e.length;a++){const t=e[a];t.parent&&t.parent.isBone&&(r.push(0,0,0),r.push(0,0,0),i.push(s.r,s.g,s.b),i.push(o.r,o.g,o.b))}n.setAttribute("position",new Ci(r,3)),n.setAttribute("color",new Ci(i,3)),super(n,new ru({vertexColors:!0,depthTest:!1,depthWrite:!1,toneMapped:!1,transparent:!0})),this.type="SkeletonHelper",this.isSkeletonHelper=!0,this.root=t,this.bones=e,this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1}updateMatrixWorld(t){const e=this.bones,n=this.geometry,r=n.getAttribute("position");If.copy(this.root.matrixWorld).invert();for(let i=0,s=0;i<e.length;i++){const t=e[i];t.parent&&t.parent.isBone&&(Df.multiplyMatrices(If,t.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s,Pf.x,Pf.y,Pf.z),Df.multiplyMatrices(If,t.parent.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s+1,Pf.x,Pf.y,Pf.z),s+=2)}n.getAttribute("position").needsUpdate=!0,super.updateMatrixWorld(t)}}function Nf(t){const e=[];t&&t.isBone&&e.push(t);for(let n=0;n<t.children.length;n++)e.push.apply(e,Nf(t.children[n]));return e}exports.SkeletonHelper=Bf;class Ff extends os{constructor(t,e,n){super(new Ep(e,4,2),new vi({wireframe:!0,fog:!1,toneMapped:!1})),this.light=t,this.light.updateMatrixWorld(),this.color=n,this.type="PointLightHelper",this.matrix=this.light.matrixWorld,this.matrixAutoUpdate=!1,this.update()}dispose(){this.geometry.dispose(),this.material.dispose()}update(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)}}exports.PointLightHelper=Ff;const Of=new Yn,zf=new xi,Gf=new xi;class Hf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n;const r=new bp(e);r.rotateY(.5*Math.PI),this.material=new vi({wireframe:!0,fog:!1,toneMapped:!1}),void 0===this.color&&(this.material.vertexColors=!0);const i=r.getAttribute("position"),s=new Float32Array(3*i.count);r.setAttribute("color",new bi(s,3)),this.add(new os(r,this.material)),this.update()}dispose(){this.children[0].geometry.dispose(),this.children[0].material.dispose()}update(){const t=this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{const e=t.geometry.getAttribute("color");zf.copy(this.light.color),Gf.copy(this.light.groundColor);for(let t=0,n=e.count;t<n;t++){const r=t<n/2?zf:Gf;e.setXYZ(t,r.r,r.g,r.b)}e.needsUpdate=!0}t.lookAt(Of.setFromMatrixPosition(this.light.matrixWorld).negate())}}exports.HemisphereLightHelper=Hf;class Uf extends pu{constructor(t=10,e=10,n=4473924,r=8947848){n=new xi(n),r=new xi(r);const i=e/2,s=t/e,o=t/2,a=[],l=[];for(let h=0,u=0,p=-o;h<=e;h++,p+=s){a.push(-o,0,p,o,0,p),a.push(p,0,-o,p,0,o);const t=h===i?n:r;t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3}const c=new ki;c.setAttribute("position",new Ci(a,3)),c.setAttribute("color",new Ci(l,3)),super(c,new ru({vertexColors:!0,toneMapped:!1})),this.type="GridHelper"}}exports.GridHelper=Uf;class kf extends pu{constructor(t=10,e=16,n=8,r=64,i=4473924,s=8947848){i=new xi(i),s=new xi(s);const o=[],a=[];for(let c=0;c<=e;c++){const n=c/e*(2*Math.PI),r=Math.sin(n)*t,l=Math.cos(n)*t;o.push(0,0,0),o.push(r,0,l);const h=1&c?i:s;a.push(h.r,h.g,h.b),a.push(h.r,h.g,h.b)}for(let c=0;c<=n;c++){const e=1&c?i:s,l=t-t/n*c;for(let t=0;t<r;t++){let n=t/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l;o.push(i,0,s),a.push(e.r,e.g,e.b),n=(t+1)/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l,o.push(i,0,s),a.push(e.r,e.g,e.b)}}const l=new ki;l.setAttribute("position",new Ci(o,3)),l.setAttribute("color",new Ci(a,3)),super(l,new ru({vertexColors:!0,toneMapped:!1})),this.type="PolarGridHelper"}}exports.PolarGridHelper=kf;const Vf=new Yn,Wf=new Yn,jf=new Yn;class qf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n,void 0===e&&(e=1);let r=new ki;r.setAttribute("position",new Ci([-e,e,0,e,e,0,e,-e,0,-e,-e,0,-e,e,0],3));const i=new ru({fog:!1,toneMapped:!1});this.lightPlane=new cu(r,i),this.add(this.lightPlane),(r=new ki).setAttribute("position",new Ci([0,0,0,0,0,1],3)),this.targetLine=new cu(r,i),this.add(this.targetLine),this.update()}dispose(){this.lightPlane.geometry.dispose(),this.lightPlane.material.dispose(),this.targetLine.geometry.dispose(),this.targetLine.material.dispose()}update(){Vf.setFromMatrixPosition(this.light.matrixWorld),Wf.setFromMatrixPosition(this.light.target.matrixWorld),jf.subVectors(Wf,Vf),this.lightPlane.lookAt(Wf),void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color)),this.targetLine.lookAt(Wf),this.targetLine.scale.z=jf.length()}}exports.DirectionalLightHelper=qf;const Xf=new Yn,Yf=new gs;class Zf extends pu{constructor(t){const e=new ki,n=new ru({color:16777215,vertexColors:!0,toneMapped:!1}),r=[],i=[],s={},o=new xi(16755200),a=new xi(16711680),l=new xi(43775),c=new xi(16777215),h=new xi(3355443);function u(t,e,n){p(t,n),p(e,n)}function p(t,e){r.push(0,0,0),i.push(e.r,e.g,e.b),void 0===s[t]&&(s[t]=[]),s[t].push(r.length/3-1)}u("n1","n2",o),u("n2","n4",o),u("n4","n3",o),u("n3","n1",o),u("f1","f2",o),u("f2","f4",o),u("f4","f3",o),u("f3","f1",o),u("n1","f1",o),u("n2","f2",o),u("n3","f3",o),u("n4","f4",o),u("p","n1",a),u("p","n2",a),u("p","n3",a),u("p","n4",a),u("u1","u2",l),u("u2","u3",l),u("u3","u1",l),u("c","t",c),u("p","c",h),u("cn1","cn2",h),u("cn3","cn4",h),u("cf1","cf2",h),u("cf3","cf4",h),e.setAttribute("position",new Ci(r,3)),e.setAttribute("color",new Ci(i,3)),super(e,n),this.type="CameraHelper",this.camera=t,this.camera.updateProjectionMatrix&&this.camera.updateProjectionMatrix(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.pointMap=s,this.update()}update(){const t=this.geometry,e=this.pointMap;Yf.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse),Jf("c",e,t,Yf,0,0,-1),Jf("t",e,t,Yf,0,0,1),Jf("n1",e,t,Yf,-1,-1,-1),Jf("n2",e,t,Yf,1,-1,-1),Jf("n3",e,t,Yf,-1,1,-1),Jf("n4",e,t,Yf,1,1,-1),Jf("f1",e,t,Yf,-1,-1,1),Jf("f2",e,t,Yf,1,-1,1),Jf("f3",e,t,Yf,-1,1,1),Jf("f4",e,t,Yf,1,1,1),Jf("u1",e,t,Yf,.7,1.1,-1),Jf("u2",e,t,Yf,-.7,1.1,-1),Jf("u3",e,t,Yf,0,2,-1),Jf("cf1",e,t,Yf,-1,0,1),Jf("cf2",e,t,Yf,1,0,1),Jf("cf3",e,t,Yf,0,-1,1),Jf("cf4",e,t,Yf,0,1,1),Jf("cn1",e,t,Yf,-1,0,-1),Jf("cn2",e,t,Yf,1,0,-1),Jf("cn3",e,t,Yf,0,-1,-1),Jf("cn4",e,t,Yf,0,1,-1),t.getAttribute("position").needsUpdate=!0}}function Jf(t,e,n,r,i,s,o){Xf.set(i,s,o).unproject(r);const a=e[t];if(void 0!==a){const t=n.getAttribute("position");for(let e=0,n=a.length;e<n;e++)t.setXYZ(a[e],Xf.x,Xf.y,Xf.z)}}exports.CameraHelper=Zf;const Qf=new Qn;class Kf extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new Float32Array(24),i=new ki;i.setIndex(new bi(n,1)),i.setAttribute("position",new bi(r,3)),super(i,new ru({color:e,toneMapped:!1})),this.object=t,this.type="BoxHelper",this.matrixAutoUpdate=!1,this.update()}update(t){if(void 0!==t&&console.warn("THREE.BoxHelper: .update() has no longer arguments."),void 0!==this.object&&Qf.setFromObject(this.object),Qf.isEmpty())return;const e=Qf.min,n=Qf.max,r=this.geometry.attributes.position,i=r.array;i[0]=n.x,i[1]=n.y,i[2]=n.z,i[3]=e.x,i[4]=n.y,i[5]=n.z,i[6]=e.x,i[7]=e.y,i[8]=n.z,i[9]=n.x,i[10]=e.y,i[11]=n.z,i[12]=n.x,i[13]=n.y,i[14]=e.z,i[15]=e.x,i[16]=n.y,i[17]=e.z,i[18]=e.x,i[19]=e.y,i[20]=e.z,i[21]=n.x,i[22]=e.y,i[23]=e.z,r.needsUpdate=!0,this.geometry.computeBoundingSphere()}setFromObject(t){return this.object=t,this.update(),this}copy(t){return pu.prototype.copy.call(this,t),this.object=t.object,this}}exports.BoxHelper=Kf;class $f extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new ki;r.setIndex(new bi(n,1)),r.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,-1,-1,1,-1,-1,-1,-1,1,-1,-1],3)),super(r,new ru({color:e,toneMapped:!1})),this.box=t,this.type="Box3Helper",this.geometry.computeBoundingSphere()}updateMatrixWorld(t){const e=this.box;e.isEmpty()||(e.getCenter(this.position),e.getSize(this.scale),this.scale.multiplyScalar(.5),super.updateMatrixWorld(t))}}exports.Box3Helper=$f;class tg extends cu{constructor(t,e=1,n=16776960){const r=n,i=new ki;i.setAttribute("position",new Ci([1,-1,1,-1,1,1,-1,-1,1,1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,1,0,0,1,0,0,0],3)),i.computeBoundingSphere(),super(i,new ru({color:r,toneMapped:!1})),this.type="PlaneHelper",this.plane=t,this.size=e;const s=new ki;s.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,1,1,-1,-1,1,1,-1,1],3)),s.computeBoundingSphere(),this.add(new os(s,new vi({color:r,opacity:.2,transparent:!0,depthWrite:!1,toneMapped:!1})))}updateMatrixWorld(t){let e=-this.plane.constant;Math.abs(e)<1e-8&&(e=1e-8),this.scale.set(.5*this.size,.5*this.size,e),this.children[0].material.side=e<0?p:u,this.lookAt(this.plane.normal),super.updateMatrixWorld(t)}}exports.PlaneHelper=tg;const eg=new Yn;let ng,rg;class ig extends Xr{constructor(t=new Yn(0,0,1),e=new Yn(0,0,0),n=1,r=16776960,i=.2*n,s=.2*i){super(),this.type="ArrowHelper",void 0===ng&&((ng=new ki).setAttribute("position",new Ci([0,0,0,0,1,0],3)),(rg=new Eu(0,.5,1,5,1)).translate(0,-.5,0)),this.position.copy(e),this.line=new cu(ng,new ru({color:r,toneMapped:!1})),this.line.matrixAutoUpdate=!1,this.add(this.line),this.cone=new os(rg,new vi({color:r,toneMapped:!1})),this.cone.matrixAutoUpdate=!1,this.add(this.cone),this.setDirection(t),this.setLength(n,i,s)}setDirection(t){if(t.y>.99999)this.quaternion.set(0,0,0,1);else if(t.y<-.99999)this.quaternion.set(1,0,0,0);else{eg.set(t.z,0,-t.x).normalize();const e=Math.acos(t.y);this.quaternion.setFromAxisAngle(eg,e)}}setLength(t,e=.2*t,n=.2*e){this.line.scale.set(1,Math.max(1e-4,t-e),1),this.line.updateMatrix(),this.cone.scale.set(n,e,n),this.cone.position.y=t,this.cone.updateMatrix()}setColor(t){this.line.material.color.set(t),this.cone.material.color.set(t)}copy(t){return super.copy(t,!1),this.line.copy(t.line),this.cone.copy(t.cone),this}}exports.ArrowHelper=ig;class sg extends pu{constructor(t=1){const e=[0,0,0,t,0,0,0,0,0,0,t,0,0,0,0,0,0,t],n=new ki;n.setAttribute("position",new Ci(e,3)),n.setAttribute("color",new Ci([1,0,0,1,.6,0,0,1,0,.6,1,0,0,0,1,0,.6,1],3)),super(n,new ru({vertexColors:!0,toneMapped:!1})),this.type="AxesHelper"}}exports.AxesHelper=sg;const og=new Float32Array(1),ag=new Int32Array(og.buffer),lg={toHalfFloat:function(t){og[0]=t;const e=ag[0];let n=e>>16&32768,r=e>>12&2047;const i=e>>23&255;return i<103?n:i>142?(n|=31744,n|=(255==i?0:1)&&8388607&e):i<113?n|=((r|=2048)>>114-i)+(r>>113-i&1):(n|=i-112<<10|r>>1,n+=1&r)}};exports.DataUtils=lg;const cg=4,hg=8,ug=Math.pow(2,hg),pg=[.125,.215,.35,.446,.526,.582],dg=hg-cg+1+pg.length,mg=20,fg={[Xe]:0,[Ye]:1,[Je]:2,[Ke]:3,[$e]:4,[tn]:5,[Ze]:6},gg=new vi({side:p,depthWrite:!1,depthTest:!1}),xg=new os(new cs,gg),vg=new lm,{_lodPlanes:yg,_sizeLods:_g,_sigmas:bg}=Cg(),wg=new xi;let Mg=null;const Sg=(1+Math.sqrt(5))/2,Tg=1/Sg,Eg=[new Yn(1,1,1),new Yn(-1,1,1),new Yn(1,1,-1),new Yn(-1,1,-1),new Yn(0,Sg,Tg),new Yn(0,Sg,-Tg),new Yn(Tg,0,Sg),new Yn(-Tg,0,Sg),new Yn(Sg,Tg,0),new Yn(-Sg,Tg,0)];function Ag(t){const e=Math.max(t.r,t.g,t.b),n=Math.min(Math.max(Math.ceil(Math.log2(e)),-128),127);return t.multiplyScalar(Math.pow(2,-n)),(n+128)/255}class Lg{constructor(t){this._renderer=t,this._pingPongRenderTarget=null,this._blurMaterial=Ig(mg),this._equirectShader=null,this._cubemapShader=null,this._compileMaterial(this._blurMaterial)}fromScene(t,e=0,n=.1,r=100){Mg=this._renderer.getRenderTarget();const i=this._allocateTargets();return this._sceneToCubeUV(t,n,r,i),e>0&&this._blur(i,0,0,e),this._applyPMREM(i),this._cleanup(i),i}fromEquirectangular(t){return this._fromTexture(t)}fromCubemap(t){return this._fromTexture(t)}compileCubemapShader(){null===this._cubemapShader&&(this._cubemapShader=Ng(),this._compileMaterial(this._cubemapShader))}compileEquirectangularShader(){null===this._equirectShader&&(this._equirectShader=Bg(),this._compileMaterial(this._equirectShader))}dispose(){this._blurMaterial.dispose(),null!==this._cubemapShader&&this._cubemapShader.dispose(),null!==this._equirectShader&&this._equirectShader.dispose();for(let t=0;t<yg.length;t++)yg[t].dispose()}_cleanup(t){this._pingPongRenderTarget.dispose(),this._renderer.setRenderTarget(Mg),t.scissorTest=!1,Dg(t,0,0,t.width,t.height)}_fromTexture(t){Mg=this._renderer.getRenderTarget();const e=this._allocateTargets(t);return this._textureToCubeUV(t,e),this._applyPMREM(e),this._cleanup(e),e}_allocateTargets(t){const e={magFilter:ut,minFilter:ut,generateMipmaps:!1,type:bt,format:zt,encoding:Rg(t)?t.encoding:Je,depthBuffer:!1},n=Pg(e);return n.depthBuffer=!t,this._pingPongRenderTarget=Pg(e),n}_compileMaterial(t){const e=new os(yg[0],t);this._renderer.compile(e,vg)}_sceneToCubeUV(t,e,n,r){const i=new xs(90,1,e,n),s=[1,-1,1,1,1,1],o=[1,1,1,-1,-1,-1],a=this._renderer,l=a.autoClear,c=a.outputEncoding,h=a.toneMapping;a.getClearColor(wg),a.toneMapping=Z,a.outputEncoding=Xe,a.autoClear=!1;let u=!1;const p=t.background;if(p){if(p.isColor){gg.color.copy(p).convertSRGBToLinear(),t.background=null;const e=Ag(gg.color);gg.opacity=e,u=!0}}else{gg.color.copy(wg).convertSRGBToLinear();const t=Ag(gg.color);gg.opacity=t,u=!0}for(let d=0;d<6;d++){const e=d%3;0==e?(i.up.set(0,s[d],0),i.lookAt(o[d],0,0)):1==e?(i.up.set(0,0,s[d]),i.lookAt(0,o[d],0)):(i.up.set(0,s[d],0),i.lookAt(0,0,o[d])),Dg(r,e*ug,d>2?ug:0,ug,ug),a.setRenderTarget(r),u&&a.render(xg,i),a.render(t,i)}a.toneMapping=h,a.outputEncoding=c,a.autoClear=l}_textureToCubeUV(t,e){const n=this._renderer;t.isCubeTexture?null==this._cubemapShader&&(this._cubemapShader=Ng()):null==this._equirectShader&&(this._equirectShader=Bg());const r=t.isCubeTexture?this._cubemapShader:this._equirectShader,i=new os(yg[0],r),s=r.uniforms;s.envMap.value=t,t.isCubeTexture||s.texelSize.value.set(1/t.image.width,1/t.image.height),s.inputEncoding.value=fg[t.encoding],s.outputEncoding.value=fg[e.texture.encoding],Dg(e,0,0,3*ug,2*ug),n.setRenderTarget(e),n.render(i,vg)}_applyPMREM(t){const e=this._renderer,n=e.autoClear;e.autoClear=!1;for(let r=1;r<dg;r++){const e=Math.sqrt(bg[r]*bg[r]-bg[r-1]*bg[r-1]),n=Eg[(r-1)%Eg.length];this._blur(t,r-1,r,e,n)}e.autoClear=n}_blur(t,e,n,r,i){const s=this._pingPongRenderTarget;this._halfBlur(t,s,e,n,r,"latitudinal",i),this._halfBlur(s,t,n,n,r,"longitudinal",i)}_halfBlur(t,e,n,r,i,s,o){const a=this._renderer,l=this._blurMaterial;"latitudinal"!==s&&"longitudinal"!==s&&console.error("blur direction must be either latitudinal or longitudinal!");const c=new os(yg[r],l),h=l.uniforms,u=_g[n]-1,p=isFinite(i)?Math.PI/(2*u):2*Math.PI/(2*mg-1),d=i/p,m=isFinite(i)?1+Math.floor(3*d):mg;m>mg&&console.warn(`sigmaRadians, ${i}, is too large and will clip, as it requested ${m} samples when the maximum is set to ${mg}`);const f=[];let g=0;for(let v=0;v<mg;++v){const t=v/d,e=Math.exp(-t*t/2);f.push(e),0==v?g+=e:v<m&&(g+=2*e)}for(let v=0;v<f.length;v++)f[v]=f[v]/g;h.envMap.value=t.texture,h.samples.value=m,h.weights.value=f,h.latitudinal.value="latitudinal"===s,o&&(h.poleAxis.value=o),h.dTheta.value=p,h.mipInt.value=hg-n,h.inputEncoding.value=fg[t.texture.encoding],h.outputEncoding.value=fg[t.texture.encoding];const x=_g[r];Dg(e,3*Math.max(0,ug-2*x),(0===r?0:2*ug)+2*x*(r>hg-cg?r-hg+cg:0),3*x,2*x),a.setRenderTarget(e),a.render(c,vg)}}function Rg(t){return void 0!==t&&t.type===bt&&(t.encoding===Xe||t.encoding===Ye||t.encoding===Ze)}function Cg(){const t=[],e=[],n=[];let r=hg;for(let i=0;i<dg;i++){const s=Math.pow(2,r);e.push(s);let o=1/s;i>hg-cg?o=pg[i-hg+cg-1]:0==i&&(o=0),n.push(o);const a=1/(s-1),l=-a/2,c=1+a/2,h=[l,l,c,l,c,c,l,l,c,c,l,c],u=6,p=6,d=3,m=2,f=1,g=new Float32Array(d*p*u),x=new Float32Array(m*p*u),v=new Float32Array(f*p*u);for(let t=0;t<u;t++){const e=t%3*2/3-1,n=t>2?0:-1,r=[e,n,0,e+2/3,n,0,e+2/3,n+1,0,e,n,0,e+2/3,n+1,0,e,n+1,0];g.set(r,d*p*t),x.set(h,m*p*t);const i=[t,t,t,t,t,t];v.set(i,f*p*t)}const y=new ki;y.setAttribute("position",new bi(g,d)),y.setAttribute("uv",new bi(x,m)),y.setAttribute("faceIndex",new bi(v,f)),t.push(y),r>cg&&r--}return{_lodPlanes:t,_sizeLods:e,_sigmas:n}}function Pg(t){const e=new jn(3*ug,3*ug,t);return e.texture.mapping=ot,e.texture.name="PMREM.cubeUv",e.scissorTest=!0,e}function Dg(t,e,n,r,i){t.viewport.set(e,n,r,i),t.scissor.set(e,n,r,i)}function Ig(t){const e=new Float32Array(t),n=new Yn(0,1,0);return new Np({name:"SphericalGaussianBlur",defines:{n:t},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:e},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:n},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t${Og()}\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include <cube_uv_reflection_fragment>\n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Bg(){const t=new On(1,1);return new Np({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null},texelSize:{value:t},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform vec2 texelSize;\n\n\t\t\t${Og()}\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tvec2 f = fract( uv / texelSize - 0.5 );\n\t\t\t\tuv -= f * texelSize;\n\t\t\t\tvec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x += texelSize.x;\n\t\t\t\tvec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.y += texelSize.y;\n\t\t\t\tvec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x -= texelSize.x;\n\t\t\t\tvec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\n\t\t\t\tvec3 tm = mix( tl, tr, f.x );\n\t\t\t\tvec3 bm = mix( bl, br, f.x );\n\t\t\t\tgl_FragColor.rgb = mix( tm, bm, f.y );\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Ng(){return new Np({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\t${Og()}\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Fg(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute vec3 position;\n\t\tattribute vec2 uv;\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Og(){return"\n\n\t\tuniform int inputEncoding;\n\t\tuniform int outputEncoding;\n\n\t\t#include <encodings_pars_fragment>\n\n\t\tvec4 inputTexelToLinear( vec4 value ) {\n\n\t\t\tif ( inputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( inputEncoding == 1 ) {\n\n\t\t\t\treturn sRGBToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 2 ) {\n\n\t\t\t\treturn RGBEToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 3 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 7.0 );\n\n\t\t\t} else if ( inputEncoding == 4 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 16.0 );\n\n\t\t\t} else if ( inputEncoding == 5 ) {\n\n\t\t\t\treturn RGBDToLinear( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn GammaToLinear( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 linearToOutputTexel( vec4 value ) {\n\n\t\t\tif ( outputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( outputEncoding == 1 ) {\n\n\t\t\t\treturn LinearTosRGB( value );\n\n\t\t\t} else if ( outputEncoding == 2 ) {\n\n\t\t\t\treturn LinearToRGBE( value );\n\n\t\t\t} else if ( outputEncoding == 3 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 7.0 );\n\n\t\t\t} else if ( outputEncoding == 4 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 16.0 );\n\n\t\t\t} else if ( outputEncoding == 5 ) {\n\n\t\t\t\treturn LinearToRGBD( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn LinearToGamma( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 envMapTexelToLinear( vec4 color ) {\n\n\t\t\treturn inputTexelToLinear( color );\n\n\t\t}\n\t"}exports.PMREMGenerator=Lg;const zg=0;exports.LineStrip=0;const Gg=1;exports.LinePieces=1;const Hg=0;exports.NoColors=0;const Ug=1;exports.FaceColors=1;const kg=2;function Vg(t){return console.warn("THREE.MeshFaceMaterial has been removed. Use an Array instead."),t}function Wg(t=[]){return console.warn("THREE.MultiMaterial has been removed. Use an Array instead."),t.isMultiMaterial=!0,t.materials=t,t.clone=function(){return t.slice()},t}function jg(t,e){return console.warn("THREE.PointCloud has been renamed to THREE.Points."),new yu(t,e)}function qg(t){return console.warn("THREE.Particle has been renamed to THREE.Sprite."),new Oh(t)}function Xg(t,e){return console.warn("THREE.ParticleSystem has been renamed to THREE.Points."),new yu(t,e)}function Yg(t){return console.warn("THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Zg(t){return console.warn("THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Jg(t){return console.warn("THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Qg(t,e,n){return console.warn("THREE.Vertex has been removed. Use THREE.Vector3 instead."),new Yn(t,e,n)}function Kg(t,e){return console.warn("THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead."),new bi(t,e).setUsage(Mn)}function $g(t,e){return console.warn("THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead."),new wi(t,e)}function tx(t,e){return console.warn("THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead."),new Mi(t,e)}function ex(t,e){return console.warn("THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead."),new Si(t,e)}function nx(t,e){return console.warn("THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead."),new Ti(t,e)}function rx(t,e){return console.warn("THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead."),new Ei(t,e)}function ix(t,e){return console.warn("THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead."),new Ai(t,e)}function sx(t,e){return console.warn("THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead."),new Li(t,e)}function ox(t,e){return console.warn("THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead."),new Ci(t,e)}function ax(t,e){return console.warn("THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead."),new Pi(t,e)}function lx(t){return console.warn("THREE.AxisHelper has been renamed to THREE.AxesHelper."),new sg(t)}function cx(t,e){return console.warn("THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead."),new Kf(t,e)}function hx(t,e){return console.warn("THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead."),new pu(new Bu(t.geometry),new ru({color:void 0!==e?e:16777215}))}function ux(t,e){return console.warn("THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead."),new pu(new Dp(t.geometry),new ru({color:void 0!==e?e:16777215}))}function px(t){return console.warn("THREE.XHRLoader has been renamed to THREE.FileLoader."),new pd(t)}function dx(t){return console.warn("THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader."),new xd(t)}function mx(t,e,n){return console.warn("THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options )."),new ws(t,n)}function fx(){console.error("THREE.CanvasRenderer has been removed")}function gx(){console.error("THREE.JSONLoader has been removed.")}exports.VertexColors=2,yd.create=function(t,e){return console.log("THREE.Curve.create() has been deprecated"),t.prototype=Object.create(yd.prototype),t.prototype.constructor=t,t.prototype.getPoint=e,t},Xd.prototype.fromPoints=function(t){return console.warn("THREE.Path: .fromPoints() has been renamed to .setFromPoints()."),this.setFromPoints(t)},Uf.prototype.setColors=function(){console.error("THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.")},Bf.prototype.update=function(){console.error("THREE.SkeletonHelper: update() no longer needs to be called.")},hd.prototype.extractUrlBase=function(t){return console.warn("THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead."),gm.extractUrlBase(t)},hd.Handlers={add:function(){console.error("THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.")},get:function(){console.error("THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.")}},Sf.prototype.center=function(t){return console.warn("THREE.Box2: .center() has been renamed to .getCenter()."),this.getCenter(t)},Sf.prototype.empty=function(){return console.warn("THREE.Box2: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Sf.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Sf.prototype.size=function(t){return console.warn("THREE.Box2: .size() has been renamed to .getSize()."),this.getSize(t)},Qn.prototype.center=function(t){return console.warn("THREE.Box3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Qn.prototype.empty=function(){return console.warn("THREE.Box3: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Qn.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Qn.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},Qn.prototype.size=function(t){return console.warn("THREE.Box3: .size() has been renamed to .getSize()."),this.getSize(t)},dr.prototype.empty=function(){return console.warn("THREE.Sphere: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Es.prototype.setFromMatrix=function(t){return console.warn("THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix()."),this.setFromProjectionMatrix(t)},Af.prototype.center=function(t){return console.warn("THREE.Line3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Fn.random16=function(){return console.warn("THREE.Math: .random16() has been deprecated. Use Math.random() instead."),Math.random()},Fn.nearestPowerOfTwo=function(t){return console.warn("THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo()."),Fn.floorPowerOfTwo(t)},Fn.nextPowerOfTwo=function(t){return console.warn("THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo()."),Fn.ceilPowerOfTwo(t)},zn.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},zn.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix3: .multiplyVector3Array() has been removed.")},zn.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.applyToVector3Array=function(){console.error("THREE.Matrix3: .applyToVector3Array() has been removed.")},zn.prototype.getInverse=function(t){return console.warn("THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},wr.prototype.extractPosition=function(t){return console.warn("THREE.Matrix4: .extractPosition() has been renamed to .copyPosition()."),this.copyPosition(t)},wr.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},wr.prototype.getPosition=function(){return console.warn("THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead."),(new Yn).setFromMatrixColumn(this,3)},wr.prototype.setRotationFromQuaternion=function(t){return console.warn("THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion()."),this.makeRotationFromQuaternion(t)},wr.prototype.multiplyToArray=function(){console.warn("THREE.Matrix4: .multiplyToArray() has been removed.")},wr.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector4=function(t){return console.warn("THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix4: .multiplyVector3Array() has been removed.")},wr.prototype.rotateAxis=function(t){console.warn("THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead."),t.transformDirection(this)},wr.prototype.crossVector=function(t){return console.warn("THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.translate=function(){console.error("THREE.Matrix4: .translate() has been removed.")},wr.prototype.rotateX=function(){console.error("THREE.Matrix4: .rotateX() has been removed.")},wr.prototype.rotateY=function(){console.error("THREE.Matrix4: .rotateY() has been removed.")},wr.prototype.rotateZ=function(){console.error("THREE.Matrix4: .rotateZ() has been removed.")},wr.prototype.rotateByAxis=function(){console.error("THREE.Matrix4: .rotateByAxis() has been removed.")},wr.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.applyToVector3Array=function(){console.error("THREE.Matrix4: .applyToVector3Array() has been removed.")},wr.prototype.makeFrustum=function(t,e,n,r,i,s){return console.warn("THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead."),this.makePerspective(t,e,r,n,i,s)},wr.prototype.getInverse=function(t){return console.warn("THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},Qr.prototype.isIntersectionLine=function(t){return console.warn("THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine()."),this.intersectsLine(t)},Xn.prototype.multiplyVector3=function(t){return console.warn("THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead."),t.applyQuaternion(this)},Xn.prototype.inverse=function(){return console.warn("THREE.Quaternion: .inverse() has been renamed to invert()."),this.invert()},br.prototype.isIntersectionBox=function(t){return console.warn("THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},br.prototype.isIntersectionPlane=function(t){return console.warn("THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane()."),this.intersectsPlane(t)},br.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},li.prototype.area=function(){return console.warn("THREE.Triangle: .area() has been renamed to .getArea()."),this.getArea()},li.prototype.barycoordFromPoint=function(t,e){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),this.getBarycoord(t,e)},li.prototype.midpoint=function(t){return console.warn("THREE.Triangle: .midpoint() has been renamed to .getMidpoint()."),this.getMidpoint(t)},li.prototypenormal=function(t){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),this.getNormal(t)},li.prototype.plane=function(t){return console.warn("THREE.Triangle: .plane() has been renamed to .getPlane()."),this.getPlane(t)},li.barycoordFromPoint=function(t,e,n,r,i){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),li.getBarycoord(t,e,n,r,i)},li.normal=function(t,e,n,r){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),li.getNormal(t,e,n,r)},Yd.prototype.extractAllPoints=function(t){return console.warn("THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead."),this.extractPoints(t)},Yd.prototype.extrude=function(t){return console.warn("THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead."),new gp(this,t)},Yd.prototype.makeGeometry=function(t){return console.warn("THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead."),new Sp(this,t)},On.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},On.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},On.prototype.lengthManhattan=function(){return console.warn("THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Yn.prototype.setEulerFromRotationMatrix=function(){console.error("THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.")},Yn.prototype.setEulerFromQuaternion=function(){console.error("THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.")},Yn.prototype.getPositionFromMatrix=function(t){return console.warn("THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition()."),this.setFromMatrixPosition(t)},Yn.prototype.getScaleFromMatrix=function(t){return console.warn("THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale()."),this.setFromMatrixScale(t)},Yn.prototype.getColumnFromMatrix=function(t,e){return console.warn("THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn()."),this.setFromMatrixColumn(e,t)},Yn.prototype.applyProjection=function(t){return console.warn("THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead."),this.applyMatrix4(t)},Yn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Yn.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},Yn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Wn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Wn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Xr.prototype.getChildByName=function(t){return console.warn("THREE.Object3D: .getChildByName() has been renamed to .getObjectByName()."),this.getObjectByName(t)},Xr.prototype.renderDepth=function(){console.warn("THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.")},Xr.prototype.translate=function(t,e){return console.warn("THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead."),this.translateOnAxis(e,t)},Xr.prototype.getWorldRotation=function(){console.error("THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.")},Xr.prototype.applyMatrix=function(t){return console.warn("THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(Xr.prototype,{eulerOrder:{get:function(){return console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order},set:function(t){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order=t}},useQuaternion:{get:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")},set:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")}}}),os.prototype.setDrawMode=function(){console.error("THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")},Object.defineProperties(os.prototype,{drawMode:{get:function(){return console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode."),0},set:function(){console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")}}}),Object.defineProperties(Uh.prototype,{objects:{get:function(){return console.warn("THREE.LOD: .objects has been renamed to .levels."),this.levels}}}),Object.defineProperty(Qh.prototype,"useVertexTexture",{get:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")},set:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")}}),Xh.prototype.initBones=function(){console.error("THREE.SkinnedMesh: initBones() has been removed.")},Object.defineProperty(yd.prototype,"__arcLengthDivisions",{get:function(){return console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions},set:function(t){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions=t}}),xs.prototype.setLens=function(t,e){console.warn("THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup."),void 0!==e&&(this.filmGauge=e),this.setFocalLength(t)},Object.defineProperties(Zd.prototype,{onlyShadow:{set:function(){console.warn("THREE.Light: .onlyShadow has been removed.")}},shadowCameraFov:{set:function(t){console.warn("THREE.Light: .shadowCameraFov is now .shadow.camera.fov."),this.shadow.camera.fov=t}},shadowCameraLeft:{set:function(t){console.warn("THREE.Light: .shadowCameraLeft is now .shadow.camera.left."),this.shadow.camera.left=t}},shadowCameraRight:{set:function(t){console.warn("THREE.Light: .shadowCameraRight is now .shadow.camera.right."),this.shadow.camera.right=t}},shadowCameraTop:{set:function(t){console.warn("THREE.Light: .shadowCameraTop is now .shadow.camera.top."),this.shadow.camera.top=t}},shadowCameraBottom:{set:function(t){console.warn("THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom."),this.shadow.camera.bottom=t}},shadowCameraNear:{set:function(t){console.warn("THREE.Light: .shadowCameraNear is now .shadow.camera.near."),this.shadow.camera.near=t}},shadowCameraFar:{set:function(t){console.warn("THREE.Light: .shadowCameraFar is now .shadow.camera.far."),this.shadow.camera.far=t}},shadowCameraVisible:{set:function(){console.warn("THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.")}},shadowBias:{set:function(t){console.warn("THREE.Light: .shadowBias is now .shadow.bias."),this.shadow.bias=t}},shadowDarkness:{set:function(){console.warn("THREE.Light: .shadowDarkness has been removed.")}},shadowMapWidth:{set:function(t){console.warn("THREE.Light: .shadowMapWidth is now .shadow.mapSize.width."),this.shadow.mapSize.width=t}},shadowMapHeight:{set:function(t){console.warn("THREE.Light: .shadowMapHeight is now .shadow.mapSize.height."),this.shadow.mapSize.height=t}}}),Object.defineProperties(bi.prototype,{length:{get:function(){return console.warn("THREE.BufferAttribute: .length has been deprecated. Use .count instead."),this.array.length}},dynamic:{get:function(){return console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.usage===Mn},set:function(){console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.setUsage(Mn)}}}),bi.prototype.setDynamic=function(t){return console.warn("THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},bi.prototype.copyIndicesArray=function(){console.error("THREE.BufferAttribute: .copyIndicesArray() has been removed.")},bi.prototype.setArray=function(){console.error("THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},ki.prototype.addIndex=function(t){console.warn("THREE.BufferGeometry: .addIndex() has been renamed to .setIndex()."),this.setIndex(t)},ki.prototype.addAttribute=function(t,e){return console.warn("THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute()."),e&&e.isBufferAttribute||e&&e.isInterleavedBufferAttribute?"index"===t?(console.warn("THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute."),this.setIndex(e),this):this.setAttribute(t,e):(console.warn("THREE.BufferGeometry: .addAttribute() now expects ( name, attribute )."),this.setAttribute(t,new bi(arguments[1],arguments[2])))},ki.prototype.addDrawCall=function(t,e,n){void 0!==n&&console.warn("THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset."),console.warn("THREE.BufferGeometry: .addDrawCall() is now .addGroup()."),this.addGroup(t,e)},ki.prototype.clearDrawCalls=function(){console.warn("THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups()."),this.clearGroups()},ki.prototype.computeOffsets=function(){console.warn("THREE.BufferGeometry: .computeOffsets() has been removed.")},ki.prototype.removeAttribute=function(t){return console.warn("THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute()."),this.deleteAttribute(t)},ki.prototype.applyMatrix=function(t){return console.warn("THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(ki.prototype,{drawcalls:{get:function(){return console.error("THREE.BufferGeometry: .drawcalls has been renamed to .groups."),this.groups}},offsets:{get:function(){return console.warn("THREE.BufferGeometry: .offsets has been renamed to .groups."),this.groups}}}),Object.defineProperties(xm.prototype,{maxInstancedCount:{get:function(){return console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount},set:function(t){console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount=t}}}),Object.defineProperties(vf.prototype,{linePrecision:{get:function(){return console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold},set:function(t){console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold=t}}}),Object.defineProperties(_h.prototype,{dynamic:{get:function(){return console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.usage===Mn},set:function(t){console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.setUsage(t)}}}),_h.prototype.setDynamic=function(t){return console.warn("THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},_h.prototype.setArray=function(){console.error("THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},gp.prototype.getArrays=function(){console.error("THREE.ExtrudeGeometry: .getArrays() has been removed.")},gp.prototype.addShapeList=function(){console.error("THREE.ExtrudeGeometry: .addShapeList() has been removed.")},gp.prototype.addShape=function(){console.error("THREE.ExtrudeGeometry: .addShape() has been removed.")},yh.prototype.dispose=function(){console.error("THREE.Scene: .dispose() has been removed.")},Object.defineProperties(ff.prototype,{dynamic:{set:function(){console.warn("THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.")}},onUpdate:{value:function(){return console.warn("THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead."),this}}}),Object.defineProperties(hi.prototype,{wrapAround:{get:function(){console.warn("THREE.Material: .wrapAround has been removed.")},set:function(){console.warn("THREE.Material: .wrapAround has been removed.")}},overdraw:{get:function(){console.warn("THREE.Material: .overdraw has been removed.")},set:function(){console.warn("THREE.Material: .overdraw has been removed.")}},wrapRGB:{get:function(){return console.warn("THREE.Material: .wrapRGB has been removed."),new xi}},shading:{get:function(){console.error("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")},set:function(t){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===t}},stencilMask:{get:function(){return console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask},set:function(t){console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask=t}}}),Object.defineProperties(zp.prototype,{metal:{get:function(){return console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead."),!1},set:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead")}}}),Object.defineProperties(Op.prototype,{transparency:{get:function(){return console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission},set:function(t){console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission=t}}}),Object.defineProperties(fs.prototype,{derivatives:{get:function(){return console.warn("THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives},set:function(t){console.warn("THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives=t}}}),fh.prototype.clearTarget=function(t,e,n,r){console.warn("THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead."),this.setRenderTarget(t),this.clear(e,n,r)},fh.prototype.animate=function(t){console.warn("THREE.WebGLRenderer: .animate() is now .setAnimationLoop()."),this.setAnimationLoop(t)},fh.prototype.getCurrentRenderTarget=function(){return console.warn("THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget()."),this.getRenderTarget()},fh.prototype.getMaxAnisotropy=function(){return console.warn("THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy()."),this.capabilities.getMaxAnisotropy()},fh.prototype.getPrecision=function(){return console.warn("THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision."),this.capabilities.precision},fh.prototype.resetGLState=function(){return console.warn("THREE.WebGLRenderer: .resetGLState() is now .state.reset()."),this.state.reset()},fh.prototype.supportsFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' )."),this.extensions.get("OES_texture_float")},fh.prototype.supportsHalfFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' )."),this.extensions.get("OES_texture_half_float")},fh.prototype.supportsStandardDerivatives=function(){return console.warn("THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' )."),this.extensions.get("OES_standard_derivatives")},fh.prototype.supportsCompressedTextureS3TC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' )."),this.extensions.get("WEBGL_compressed_texture_s3tc")},fh.prototype.supportsCompressedTexturePVRTC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' )."),this.extensions.get("WEBGL_compressed_texture_pvrtc")},fh.prototype.supportsBlendMinMax=function(){return console.warn("THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' )."),this.extensions.get("EXT_blend_minmax")},fh.prototype.supportsVertexTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures."),this.capabilities.vertexTextures},fh.prototype.supportsInstancedArrays=function(){return console.warn("THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' )."),this.extensions.get("ANGLE_instanced_arrays")},fh.prototype.enableScissorTest=function(t){console.warn("THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest()."),this.setScissorTest(t)},fh.prototype.initMaterial=function(){console.warn("THREE.WebGLRenderer: .initMaterial() has been removed.")},fh.prototype.addPrePlugin=function(){console.warn("THREE.WebGLRenderer: .addPrePlugin() has been removed.")},fh.prototype.addPostPlugin=function(){console.warn("THREE.WebGLRenderer: .addPostPlugin() has been removed.")},fh.prototype.updateShadowMap=function(){console.warn("THREE.WebGLRenderer: .updateShadowMap() has been removed.")},fh.prototype.setFaceCulling=function(){console.warn("THREE.WebGLRenderer: .setFaceCulling() has been removed.")},fh.prototype.allocTextureUnit=function(){console.warn("THREE.WebGLRenderer: .allocTextureUnit() has been removed.")},fh.prototype.setTexture=function(){console.warn("THREE.WebGLRenderer: .setTexture() has been removed.")},fh.prototype.setTexture2D=function(){console.warn("THREE.WebGLRenderer: .setTexture2D() has been removed.")},fh.prototype.setTextureCube=function(){console.warn("THREE.WebGLRenderer: .setTextureCube() has been removed.")},fh.prototype.getActiveMipMapLevel=function(){return console.warn("THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel()."),this.getActiveMipmapLevel()},Object.defineProperties(fh.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled."),this.shadowMap.enabled=t}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type."),this.shadowMap.type=t}},shadowMapCullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")}},context:{get:function(){return console.warn("THREE.WebGLRenderer: .context has been removed. Use .getContext() instead."),this.getContext()}},vr:{get:function(){return console.warn("THREE.WebGLRenderer: .vr has been renamed to .xr"),this.xr}},gammaInput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead."),!1},set:function(){console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.")}},gammaOutput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),!1},set:function(t){console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),this.outputEncoding=!0===t?Ye:Xe}},toneMappingWhitePoint:{get:function(){return console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed."),1},set:function(){console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.")}}}),Object.defineProperties(sh.prototype,{cullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")}},renderReverseSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")}},renderSingleSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. 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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -565,7 +565,7 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. 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\ No newline at end of file
diff --git a/example/bundle/distancecast.html b/example/bundle/distancecast.html
index defeeaae8..06205f5d6 100644
--- a/example/bundle/distancecast.html
+++ b/example/bundle/distancecast.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Closest Distance</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#loader{height:3px;position:absolute;bottom:0;width:100%;background:#fff}</style></head><body> <div id="loader"></div> <script src="distancecast.4107d8f2.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/generateAsync.worker.13d14241.js b/example/bundle/generateAsync.worker.13d14241.js
index bb95c3e7c..078a2e68b 100644
--- a/example/bundle/generateAsync.worker.13d14241.js
+++ b/example/bundle/generateAsync.worker.13d14241.js
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -27,7 +27,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 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I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"HHJX":[function(require,module,exports) {
 var global = arguments[3];
 var e=arguments[3],r=require("three"),t=i(require("../MeshBVH.js"));function i(e){return e&&e.__esModule?e:{default:e}}e.onmessage=function(i){var n=i.data,s=n.index,u=n.position,a=n.options;try{var o=new r.BufferGeometry;o.setAttribute("position",new r.BufferAttribute(u,3,!1)),s&&o.setIndex(new r.BufferAttribute(s,1,!1)),a.lazyGeneration=!1;var f=new t.default(o,a),l=t.default.serialize(f,o,!1);e.postMessage({error:null,serialized:l,position:u},[l.index.buffer,u.buffer])}catch(d){e.postMessage({error:d,serialized:null})}};
diff --git a/example/bundle/physics.50b811f1.js b/example/bundle/physics.50b811f1.js
index ca5937cc2..1e6fc973e 100644
--- a/example/bundle/physics.50b811f1.js
+++ b/example/bundle/physics.50b811f1.js
@@ -10,7 +10,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
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be(e){0!==e.length&&U.call(window,function(){be(e)}),i.each(e,function(e){e.updateDisplay()})}oe.toggleHide=function(){te=!te,i.each(ne,function(e){e.domElement.style.display=te?"none":""})},oe.CLASS_AUTO_PLACE="a",oe.CLASS_AUTO_PLACE_CONTAINER="ac",oe.CLASS_MAIN="main",oe.CLASS_CONTROLLER_ROW="cr",oe.CLASS_TOO_TALL="taller-than-window",oe.CLASS_CLOSED="closed",oe.CLASS_CLOSE_BUTTON="close-button",oe.CLASS_CLOSE_TOP="close-top",oe.CLASS_CLOSE_BOTTOM="close-bottom",oe.CLASS_DRAG="drag",oe.DEFAULT_WIDTH=245,oe.TEXT_CLOSED="Close Controls",oe.TEXT_OPEN="Open Controls",oe._keydownHandler=function(e){"text"===document.activeElement.type||e.which!==J&&e.keyCode!==J||oe.toggleHide()},A.bind(window,"keydown",oe._keydownHandler,!1),i.extend(oe.prototype,{add:function(e,t){return de(this,e,t,{factoryArgs:Array.prototype.slice.call(arguments,2)})},addColor:function(e,t){return de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
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b(e,t,n){Object.defineProperty(e,t,{get:function(){return"RGB"===this.__state.space?this.__state[t]:(g.recalculateRGB(this,t,n),this.__state[t])},set:function(e){"RGB"!==this.__state.space&&(g.recalculateRGB(this,t,n),this.__state.space="RGB"),this.__state[t]=e}})}function v(e,t){Object.defineProperty(e,t,{get:function(){return"HSV"===this.__state.space?this.__state[t]:(g.recalculateHSV(this),this.__state[t])},set:function(e){"HSV"!==this.__state.space&&(g.recalculateHSV(this),this.__state.space="HSV"),this.__state[t]=e}})}g.recalculateRGB=function(e,t,n){if("HEX"===e.__state.space)e.__state[t]=c.component_from_hex(e.__state.hex,n);else{if("HSV"!==e.__state.space)throw new Error("Corrupted color state");i.extend(e.__state,c.hsv_to_rgb(e.__state.h,e.__state.s,e.__state.v))}},g.recalculateHSV=function(e){var t=c.rgb_to_hsv(e.r,e.g,e.b);i.extend(e.__state,{s:t.s,v:t.v}),i.isNaN(t.h)?i.isUndefined(e.__state.h)&&(e.__state.h=0):e.__state.h=t.h},g.COMPONENTS=["r","g","b","h","s","v","hex","a"],b(g.prototype,"r",2),b(g.prototype,"g",1),b(g.prototype,"b",0),v(g.prototype,"h"),v(g.prototype,"s"),v(g.prototype,"v"),Object.defineProperty(g.prototype,"a",{get:function(){return this.__state.a},set:function(e){this.__state.a=e}}),Object.defineProperty(g.prototype,"hex",{get:function(){return"HEX"!==this.__state.space&&(this.__state.hex=c.rgb_to_hex(this.r,this.g,this.b),this.__state.space="HEX"),this.__state.hex},set:function(e){this.__state.space="HEX",this.__state.hex=e}});var y=function(){function e(t,n){_(this,e),this.initialValue=t[n],this.domElement=document.createElement("div"),this.object=t,this.property=n,this.__onChange=void 0,this.__onFinishChange=void 0}return h(e,[{key:"onChange",value:function(e){return this.__onChange=e,this}},{key:"onFinishChange",value:function(e){return this.__onFinishChange=e,this}},{key:"setValue",value:function(e){return this.object[this.property]=e,this.__onChange&&this.__onChange.call(this,e),this.updateDisplay(),this}},{key:"getValue",value:function(){return this.object[this.property]}},{key:"updateDisplay",value:function(){return this}},{key:"isModified",value:function(){return this.initialValue!==this.getValue()}}]),e}(),w={HTMLEvents:["change"],MouseEvents:["click","mousemove","mousedown","mouseup","mouseover"],KeyboardEvents:["keydown"]},x={};i.each(w,function(e,t){i.each(e,function(e){x[e]=t})});var E=/(\d+(\.\d+)?)px/;function C(e){if("0"===e||i.isUndefined(e))return 0;var t=e.match(E);return i.isNull(t)?0:parseFloat(t[1])}var A={makeSelectable:function(e,t){void 0!==e&&void 0!==e.style&&(e.onselectstart=t?function(){return!1}:function(){},e.style.MozUserSelect=t?"auto":"none",e.style.KhtmlUserSelect=t?"auto":"none",e.unselectable=t?"on":"off")},makeFullscreen:function(e,t,n){var o=n,r=t;i.isUndefined(r)&&(r=!0),i.isUndefined(o)&&(o=!0),e.style.position="absolute",r&&(e.style.left=0,e.style.right=0),o&&(e.style.top=0,e.style.bottom=0)},fakeEvent:function(e,t,n,o){var r=n||{},s=x[t];if(!s)throw new Error("Event type "+t+" not supported.");var a=document.createEvent(s);switch(s){case"MouseEvents":var l=r.x||r.clientX||0,d=r.y||r.clientY||0;a.initMouseEvent(t,r.bubbles||!1,r.cancelable||!0,window,r.clickCount||1,0,0,l,d,!1,!1,!1,!1,0,null);break;case"KeyboardEvents":var c=a.initKeyboardEvent||a.initKeyEvent;i.defaults(r,{cancelable:!0,ctrlKey:!1,altKey:!1,shiftKey:!1,metaKey:!1,keyCode:void 0,charCode:void 0}),c(t,r.bubbles||!1,r.cancelable,window,r.ctrlKey,r.altKey,r.shiftKey,r.metaKey,r.keyCode,r.charCode);break;default:a.initEvent(t,r.bubbles||!1,r.cancelable||!0)}i.defaults(a,o),e.dispatchEvent(a)},bind:function(e,t,n,o){var i=o||!1;return e.addEventListener?e.addEventListener(t,n,i):e.attachEvent&&e.attachEvent("on"+t,n),A},unbind:function(e,t,n,o){var 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t&&o.appendChild(t),n?e.__ul.insertBefore(o,n):e.__ul.appendChild(o),e.onResize(),o}function re(e){A.unbind(window,"resize",e.__resizeHandler),e.saveToLocalStorageIfPossible&&A.unbind(window,"unload",e.saveToLocalStorageIfPossible)}function se(e,t){var n=e.__preset_select[e.__preset_select.selectedIndex];n.innerHTML=t?n.value+"*":n.value}function ae(e,t,n){if(n.__li=t,n.__gui=e,i.extend(n,{options:function(t){if(arguments.length>1){var o=n.__li.nextElementSibling;return n.remove(),de(e,n.object,n.property,{before:o,factoryArgs:[i.toArray(arguments)]})}if(i.isArray(t)||i.isObject(t)){var r=n.__li.nextElementSibling;return n.remove(),de(e,n.object,n.property,{before:r,factoryArgs:[t]})}},name:function(e){return n.__li.firstElementChild.firstElementChild.innerHTML=e,n},listen:function(){return n.__gui.listen(n),n},remove:function(){return n.__gui.remove(n),n}}),n instanceof H){var o=new B(n.object,n.property,{min:n.__min,max:n.__max,step:n.__step});i.each(["updateDisplay","onChange","onFinishChange","step","min","max"],function(e){var t=n[e],i=o[e];n[e]=o[e]=function(){var e=Array.prototype.slice.call(arguments);return i.apply(o,e),t.apply(n,e)}}),A.addClass(t,"has-slider"),n.domElement.insertBefore(o.domElement,n.domElement.firstElementChild)}else if(n instanceof B){var r=function(t){if(i.isNumber(n.__min)&&i.isNumber(n.__max)){var o=n.__li.firstElementChild.firstElementChild.innerHTML,r=n.__gui.__listening.indexOf(n)>-1;n.remove();var s=de(e,n.object,n.property,{before:n.__li.nextElementSibling,factoryArgs:[n.__min,n.__max,n.__step]});return s.name(o),r&&s.listen(),s}return t};n.min=i.compose(r,n.min),n.max=i.compose(r,n.max)}else n instanceof k?(A.bind(t,"click",function(){A.fakeEvent(n.__checkbox,"click")}),A.bind(n.__checkbox,"click",function(e){e.stopPropagation()})):n instanceof 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t=e.__save_row=document.createElement("li");A.addClass(e.domElement,"has-save"),e.__ul.insertBefore(t,e.__ul.firstChild),A.addClass(t,"save-row");var n=document.createElement("span");n.innerHTML="&nbsp;",A.addClass(n,"button gears");var o=document.createElement("span");o.innerHTML="Save",A.addClass(o,"button"),A.addClass(o,"save");var r=document.createElement("span");r.innerHTML="New",A.addClass(r,"button"),A.addClass(r,"save-as");var s=document.createElement("span");s.innerHTML="Revert",A.addClass(s,"button"),A.addClass(s,"revert");var a=e.__preset_select=document.createElement("select");if(e.load&&e.load.remembered?i.each(e.load.remembered,function(t,n){ue(e,n,n===e.preset)}):ue(e,Q,!1),A.bind(a,"change",function(){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].innerHTML=e.__preset_select[t].value;e.preset=this.value}),t.appendChild(a),t.appendChild(n),t.appendChild(o),t.appendChild(r),t.appendChild(s),q){var l=document.getElementById("dg-local-explain"),d=document.getElementById("dg-local-storage");document.getElementById("dg-save-locally").style.display="block","true"===localStorage.getItem(ce(e,"isLocal"))&&d.setAttribute("checked","checked"),_e(e,l),A.bind(d,"change",function(){e.useLocalStorage=!e.useLocalStorage,_e(e,l)})}var c=document.getElementById("dg-new-constructor");A.bind(c,"keydown",function(e){!e.metaKey||67!==e.which&&67!==e.keyCode||Z.hide()}),A.bind(n,"click",function(){c.innerHTML=JSON.stringify(e.getSaveObject(),void 0,2),Z.show(),c.focus(),c.select()}),A.bind(o,"click",function(){e.save()}),A.bind(r,"click",function(){var t=prompt("Enter a new preset name.");t&&e.saveAs(t)}),A.bind(s,"click",function(){e.revert()})}function pe(e){var t=void 0;function n(n){return n.preventDefault(),e.width+=t-n.clientX,e.onResize(),t=n.clientX,!1}function o(){A.removeClass(e.__closeButton,oe.CLASS_DRAG),A.unbind(window,"mousemove",n),A.unbind(window,"mouseup",o)}function r(i){return i.preventDefault(),t=i.clientX,A.addClass(e.__closeButton,oe.CLASS_DRAG),A.bind(window,"mousemove",n),A.bind(window,"mouseup",o),!1}e.__resize_handle=document.createElement("div"),i.extend(e.__resize_handle.style,{width:"6px",marginLeft:"-3px",height:"200px",cursor:"ew-resize",position:"absolute"}),A.bind(e.__resize_handle,"mousedown",r),A.bind(e.__closeButton,"mousedown",r),e.domElement.insertBefore(e.__resize_handle,e.domElement.firstElementChild)}function fe(e,t){e.domElement.style.width=t+"px",e.__save_row&&e.autoPlace&&(e.__save_row.style.width=t+"px"),e.__closeButton&&(e.__closeButton.style.width=t+"px")}function me(e,t){var n={};return i.each(e.__rememberedObjects,function(o,r){var s={},a=e.__rememberedObjectIndecesToControllers[r];i.each(a,function(e,n){s[n]=t?e.initialValue:e.getValue()}),n[r]=s}),n}function ge(e){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].value===e.preset&&(e.__preset_select.selectedIndex=t)}function 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de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). 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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -38,9 +38,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
@@ -48,5 +48,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
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l,p,u,h,m,v,f,w,y,S={displayCollider:!1,displayBVH:!1,visualizeDepth:10,gravity:-9.8,physicsSteps:5,simulationSpeed:1,sphereSize:1,pause:!1,step:function(){for(var e=S.physicsSteps,t=0;t<e;t++)H(.016/e)},explode:G,reset:O},g=[],M=[],V=new e.Sphere,b=new e.Vector3,x=new e.Vector3,P=new e.Vector3(0,0,1);function j(){(l=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),l.setSize(window.innerWidth,window.innerHeight),l.setClearColor(1251612,1),l.shadowMap.enabled=!0,l.shadowMap.type=e.PCFSoftShadowMap,l.gammaOutput=!0,document.body.appendChild(l.domElement),(u=new e.Scene).fog=new e.Fog(1251612,30,70);var t=new e.DirectionalLight(11193599,1);t.position.set(1,1.5,1).multiplyScalar(50),t.intensity=.25;var r=t.shadow.camera;r.bottom=r.left=-10,r.top=r.right=10,u.add(t),u.add(new e.HemisphereLight(4491519,2241348,.3)),(p=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(10,10,-10),p.far=100,p.updateProjectionMatrix(),window.camera=p,h=new e.Clock,new a.OrbitControls(p,l.domElement),v=new i.default,document.body.appendChild(v.dom),z();var n=(m=new o.GUI).addFolder("Visualization");n.add(S,"displayCollider"),n.add(S,"displayBVH"),n.add(S,"visualizeDepth",1,20,1).onChange(function(e){y.depth=e,y.update()}),n.open();var d=m.addFolder("Physics");d.add(S,"physicsSteps",0,30,1),d.add(S,"gravity",-100,100,.01).onChange(function(e){S.gravity=parseFloat(e)}),d.add(S,"simulationSpeed",0,5,.01),d.add(S,"sphereSize",.2,5,.1),d.add(S,"pause"),d.add(S,"step"),d.open(),m.add(S,"explode"),m.add(S,"reset"),m.open();var s=new e.Raycaster,c=new e.Vector2,f=0,w=0;l.domElement.addEventListener("pointerdown",function(e){f=e.clientX,w=e.clientY}),l.domElement.addEventListener("pointerup",function(e){if(!(Math.abs(e.clientX-f)+Math.abs(e.clientY-w)>2)){c.x=e.clientX/window.innerWidth*2-1,c.y=-e.clientY/window.innerHeight*2+1,s.setFromCamera(c,p);var t=B();t.position.copy(p.position).addScaledVector(s.ray.direction,3),t.velocity.set(Math.random()-.5,Math.random()-.5,Math.random()-.5).addScaledVector(s.ray.direction,10*Math.random()+15).multiplyScalar(.5)}}),window.addEventListener("resize",function(){p.aspect=window.innerWidth/window.innerHeight,p.updateProjectionMatrix(),l.setSize(window.innerWidth,window.innerHeight)},!1),window.createSphere=B}function z(){(new t.GLTFLoader).load("../models/low_poly_environment_jungle_scene/scene.gltf",function(t){(f=t.scene).scale.setScalar(.05);var a=new e.PointLight(65535);a.distance=7,a.position.set(-100,-40,100),f.add(a);var i=new e.PointLight(16768358);i.distance=15,i.intensity=5,i.position.set(80,80,135),i.shadow.normalBias=.01,i.shadow.bias=-.001,i.shadow.mapSize.setScalar(1024),i.castShadow=!0,f.add(i);var o=[];f.updateMatrixWorld(!0),f.traverse(function(e){if(e.geometry){var t=e.geometry.clone();for(var a in t.applyMatrix4(e.matrixWorld),t.attributes)"position"!==a&&t.deleteAttribute(a);o.push(t)}});var d=r.BufferGeometryUtils.mergeBufferGeometries(o,!1);d.boundsTree=new n.MeshBVH(d,{lazyGeneration:!1}),(w=new e.Mesh(d)).material.wireframe=!0,w.material.opacity=.5,w.material.transparent=!0,y=new n.MeshBVHVisualizer(w,S.visualizeDepth),u.add(y),u.add(w),u.add(f),f.traverse(function(e){e.material&&(e.castShadow=!0,e.receiveShadow=!0,e.material.shadowSide=2)})})}function C(t,a,r,i,o){var n=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0;if(!(o<Math.max(Math.abs(.04*S.gravity),5))){var d=2*Math.max(a?Math.max(t.collider.radius,a.collider.radius):t.collider.radius,.4),s=new e.Mesh(new e.RingBufferGeometry(0,1,30),new e.MeshBasicMaterial({side:2,transparent:!0,depthWrite:!1}));s.lifetime=0,s.maxLifetime=.4,s.maxScale=d*Math.max(Math.sin(Math.min(o/200,1)*Math.PI/2),.35),s.position.copy(r).addScaledVector(i,n),s.quaternion.setFromUnitVectors(P,i),u.add(s),M.push(s)}}function B(){var t=new e.Color(16777215),a=new e.Color(1251612).lerp(t,.5*Math.random()+.5).convertSRGBToLinear(),r=new e.Mesh(new e.SphereBufferGeometry(1,20,20),new e.MeshStandardMaterial({color:a}));u.add(r),r.castShadow=!0,r.receiveShadow=!0,r.material.shadowSide=2;var i=.5*S.sphereSize*(.2*Math.random()+.6);return r.scale.setScalar(i),r.collider=new e.Sphere(r.position,i),r.velocity=new e.Vector3(0,0,0),r.mass=Math.pow(i,3)*Math.PI*4/3,g.push(r),r}function L(t){for(var a=w.geometry.boundsTree,r=0,i=g.length;r<i;r++){var o=g[r],n=o.collider;if(o.velocity.y+=S.gravity*t,n.center.addScaledVector(o.velocity,t),n.center.y<-80)g.splice(r,1),r--,i--,o.material.dispose(),o.geometry.dispose(),u.remove(o);else{V.copy(o.collider);var d=!1;if(a.shapecast(w,{intersectsBounds:function(e){return e.intersectsSphere(V)},intersectsTriangle:function(e){e.closestPointToPoint(V.center,b),b.sub(V.center);var t=b.length();if(t<V.radius){var a=t-V.radius;b.multiplyScalar(1/t),V.center.addScaledVector(b,a),d=!0}},traverseBoundsOrder:function(e){return e.distanceToPoint(V.center)-V.radius}}),d){b.subVectors(V.center,n.center).normalize(),o.velocity.reflect(b);var s=o.velocity.dot(b);o.velocity.addScaledVector(b,.5*-s),o.velocity.multiplyScalar(Math.max(1-t,0)),n.center.copy(V.center),x.copy(V.center).addScaledVector(b,-V.radius),C(o,null,x,b,s,.05)}}}for(var c=0,l=g.length;c<l;c++){for(var p=g[c],h=p.collider,m=c+1;m<l;m++){var v=g[m],f=v.collider;b.subVectors(h.center,f.center);var y=b.length()-(h.radius+f.radius);if(y<0){b.normalize();var M=p.velocity.dot(b),P=v.velocity.dot(b),j=Math.max(M,.2),z=Math.max(P,.2),B=j+z,L=j/B,O=z/B;h.center.addScaledVector(b,-L*y),f.center.addScaledVector(b,O*y);var G=new e.Vector3;G.addScaledVector(b,-M).addScaledVector(b,P);var H=G.length(),W=p.mass,E=v.mass,F=void 0,q=void 0;G.dot(p.velocity)>G.dot(v.velocity)?(F=.5*H*(W-E)/(W+E),q=.5*H*2*W/(W+E),F-=H):(F=.5*H*2*E/(W+E),q=.5*H*(E-W)/(W+E),q-=H),G.normalize(),p.velocity.addScaledVector(G,F),v.velocity.addScaledVector(G,q),x.copy(h.center).addScaledVector(b,-h.radius),C(p,v,x,b,H,0)}}p.position.copy(h.center)}}function O(){g.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),g.length=0,M.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),M.length=0}function G(){var t=new e.Vector3;g.forEach(function(e){t.copy(e.position),t.y+=10,t.normalize(),e.velocity.addScaledVector(t,120)})}function H(e){if(w)for(var t=S.physicsSteps,a=0;a<t;a++)L(e/t);for(var r=0,i=M.length;r<i;r++){var o=M[r];o.lifetime+=e;var n=o.lifetime/o.maxLifetime,d=Math.sin(4.5*n*Math.PI/4);d=1-Math.pow(1-d,2),o.scale.setScalar(d*o.maxScale),o.material.opacity=1-Math.sin(2*n*Math.PI/4),n>=1&&(M.splice(r,1),o.parent.remove(o),o.geometry.dispose(),o.material.dispose(),r--,i--)}}function W(){v.update(),requestAnimationFrame(W);var e=Math.min(h.getDelta(),.1);w&&(w.visible=S.displayCollider,y.visible=S.displayBVH,S.pause||H(S.simulationSpeed*e)),l.render(u,p)}j(),W();
+"use strict";var e=c(require("three")),t=require("three/examples/jsm/loaders/GLTFLoader.js"),a=require("three/examples/jsm/controls/OrbitControls.js"),r=require("three/examples/jsm/utils/BufferGeometryUtils.js"),i=d(require("stats.js")),o=require("dat.gui"),n=require("../src/index.js");function d(e){return e&&e.__esModule?e:{default:e}}function s(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,a=new WeakMap;return(s=function(e){return e?a:t})(e)}function c(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var a=s(t);if(a&&a.has(e))return a.get(e);var r={},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if("default"!==o&&Object.prototype.hasOwnProperty.call(e,o)){var n=i?Object.getOwnPropertyDescriptor(e,o):null;n&&(n.get||n.set)?Object.defineProperty(r,o,n):r[o]=e[o]}return r.default=e,a&&a.set(e,r),r}var l,p,u,h,m,v,f,w,y,S={displayCollider:!1,displayBVH:!1,visualizeDepth:10,gravity:-9.8,physicsSteps:5,simulationSpeed:1,sphereSize:1,pause:!1,step:function(){for(var e=S.physicsSteps,t=0;t<e;t++)G(.016/e)},explode:W,reset:O},M=[],g=[],V=new e.Sphere,b=new e.Vector3,x=new e.Vector3,P=new e.Vector3(0,0,1);function j(){(l=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),l.setSize(window.innerWidth,window.innerHeight),l.setClearColor(1251612,1),l.shadowMap.enabled=!0,l.shadowMap.type=e.PCFSoftShadowMap,l.gammaOutput=!0,document.body.appendChild(l.domElement),(u=new e.Scene).fog=new e.Fog(1251612,30,70);var t=new e.DirectionalLight(11193599,1);t.position.set(1,1.5,1).multiplyScalar(50),t.intensity=.25;var r=t.shadow.camera;r.bottom=r.left=-10,r.top=r.right=10,u.add(t),u.add(new e.HemisphereLight(4491519,2241348,.3)),(p=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(10,10,-10),p.far=100,p.updateProjectionMatrix(),window.camera=p,h=new e.Clock,new a.OrbitControls(p,l.domElement),v=new i.default,document.body.appendChild(v.dom),z();var n=(m=new o.GUI).addFolder("Visualization");n.add(S,"displayCollider"),n.add(S,"displayBVH"),n.add(S,"visualizeDepth",1,20,1).onChange(function(e){y.depth=e,y.update()}),n.open();var d=m.addFolder("Physics");d.add(S,"physicsSteps",0,30,1),d.add(S,"gravity",-100,100,.01).onChange(function(e){S.gravity=parseFloat(e)}),d.add(S,"simulationSpeed",0,5,.01),d.add(S,"sphereSize",.2,5,.1),d.add(S,"pause"),d.add(S,"step"),d.open(),m.add(S,"explode"),m.add(S,"reset"),m.open();var s=new e.Raycaster,c=new e.Vector2,f=0,w=0;l.domElement.addEventListener("pointerdown",function(e){f=e.clientX,w=e.clientY}),l.domElement.addEventListener("pointerup",function(e){if(!(Math.abs(e.clientX-f)+Math.abs(e.clientY-w)>2)){c.x=e.clientX/window.innerWidth*2-1,c.y=-e.clientY/window.innerHeight*2+1,s.setFromCamera(c,p);var t=B();t.position.copy(p.position).addScaledVector(s.ray.direction,3),t.velocity.set(Math.random()-.5,Math.random()-.5,Math.random()-.5).addScaledVector(s.ray.direction,10*Math.random()+15).multiplyScalar(.5)}}),window.addEventListener("resize",function(){p.aspect=window.innerWidth/window.innerHeight,p.updateProjectionMatrix(),l.setSize(window.innerWidth,window.innerHeight)},!1),window.createSphere=B}function z(){(new t.GLTFLoader).load("../models/low_poly_environment_jungle_scene/scene.gltf",function(t){(f=t.scene).scale.setScalar(.05);var a=new e.PointLight(65535);a.distance=7,a.position.set(-100,-40,100),f.add(a);var i=new e.PointLight(16768358);i.distance=15,i.intensity=5,i.position.set(80,80,135),i.shadow.normalBias=.01,i.shadow.bias=-.001,i.shadow.mapSize.setScalar(1024),i.castShadow=!0,f.add(i);var o=[];f.updateMatrixWorld(!0),f.traverse(function(e){if(e.geometry){var t=e.geometry.clone();for(var a in t.applyMatrix4(e.matrixWorld),t.attributes)"position"!==a&&t.deleteAttribute(a);o.push(t)}});var d=r.BufferGeometryUtils.mergeBufferGeometries(o,!1);d.boundsTree=new n.MeshBVH(d,{lazyGeneration:!1}),(w=new e.Mesh(d)).material.wireframe=!0,w.material.opacity=.5,w.material.transparent=!0,y=new n.MeshBVHVisualizer(w,S.visualizeDepth),u.add(y),u.add(w),u.add(f),f.traverse(function(e){e.material&&(e.castShadow=!0,e.receiveShadow=!0,e.material.shadowSide=2)})})}function C(t,a,r,i,o){var n=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0;if(!(o<Math.max(Math.abs(.04*S.gravity),5))){var d=2*Math.max(a?Math.max(t.collider.radius,a.collider.radius):t.collider.radius,.4),s=new e.Mesh(new e.RingBufferGeometry(0,1,30),new e.MeshBasicMaterial({side:2,transparent:!0,depthWrite:!1}));s.lifetime=0,s.maxLifetime=.4,s.maxScale=d*Math.max(Math.sin(Math.min(o/200,1)*Math.PI/2),.35),s.position.copy(r).addScaledVector(i,n),s.quaternion.setFromUnitVectors(P,i),u.add(s),g.push(s)}}function B(){var t=new e.Color(16777215),a=new e.Color(1251612).lerp(t,.5*Math.random()+.5).convertSRGBToLinear(),r=new e.Mesh(new e.SphereBufferGeometry(1,20,20),new e.MeshStandardMaterial({color:a}));u.add(r),r.castShadow=!0,r.receiveShadow=!0,r.material.shadowSide=2;var i=.5*S.sphereSize*(.2*Math.random()+.6);return r.scale.setScalar(i),r.collider=new e.Sphere(r.position,i),r.velocity=new e.Vector3(0,0,0),r.mass=Math.pow(i,3)*Math.PI*4/3,M.push(r),r}function L(t){for(var a=w.geometry.boundsTree,r=0,i=M.length;r<i;r++){var o=M[r],n=o.collider;if(o.velocity.y+=S.gravity*t,n.center.addScaledVector(o.velocity,t),n.center.y<-80)M.splice(r,1),r--,i--,o.material.dispose(),o.geometry.dispose(),u.remove(o);else{V.copy(o.collider);var d=!1;if(a.shapecast(w,{intersectsBounds:function(e){return e.intersectsSphere(V)},intersectsTriangle:function(e){e.closestPointToPoint(V.center,b),b.sub(V.center);var t=b.length();if(t<V.radius){var a=t-V.radius;b.multiplyScalar(1/t),V.center.addScaledVector(b,a),d=!0}},traverseBoundsOrder:function(e){return e.distanceToPoint(V.center)-V.radius}}),d){b.subVectors(V.center,n.center).normalize(),o.velocity.reflect(b);var s=o.velocity.dot(b);o.velocity.addScaledVector(b,.5*-s),o.velocity.multiplyScalar(Math.max(1-t,0)),n.center.copy(V.center),x.copy(V.center).addScaledVector(b,-V.radius),C(o,null,x,b,s,.05)}}}for(var c=0,l=M.length;c<l;c++){for(var p=M[c],h=p.collider,m=c+1;m<l;m++){var v=M[m],f=v.collider;b.subVectors(h.center,f.center);var y=b.length()-(h.radius+f.radius);if(y<0){b.normalize();var g=p.velocity.dot(b),P=v.velocity.dot(b),j=Math.max(g,.2),z=Math.max(P,.2),B=j+z,L=j/B,O=z/B;h.center.addScaledVector(b,-L*y),f.center.addScaledVector(b,O*y);var W=new e.Vector3;W.addScaledVector(b,-g).addScaledVector(b,P);var G=W.length(),H=p.mass,E=v.mass,F=void 0,q=void 0;W.dot(p.velocity)>W.dot(v.velocity)?(F=.5*G*(H-E)/(H+E),q=.5*G*2*H/(H+E),F-=G):(F=.5*G*2*E/(H+E),q=.5*G*(E-H)/(H+E),q-=G),W.normalize(),p.velocity.addScaledVector(W,F),v.velocity.addScaledVector(W,q),x.copy(h.center).addScaledVector(b,-h.radius),C(p,v,x,b,G,0)}}p.position.copy(h.center)}}function O(){M.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),M.length=0,g.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),g.length=0}function W(){var t=new e.Vector3;M.forEach(function(e){t.copy(e.position),t.y+=10,t.normalize(),e.velocity.addScaledVector(t,120)})}function G(e){if(w)for(var t=S.physicsSteps,a=0;a<t;a++)L(e/t);for(var r=0,i=g.length;r<i;r++){var o=g[r];o.lifetime+=e;var n=o.lifetime/o.maxLifetime,d=Math.sin(4.5*n*Math.PI/4);d=1-Math.pow(1-d,2),o.scale.setScalar(d*o.maxScale),o.material.opacity=1-Math.sin(2*n*Math.PI/4),n>=1&&(g.splice(r,1),o.parent.remove(o),o.geometry.dispose(),o.material.dispose(),r--,i--)}}function H(){v.update(),requestAnimationFrame(H);var e=Math.min(h.getDelta(),.1);w&&(w.visible=S.displayCollider,y.visible=S.displayBVH,S.pause||G(S.simulationSpeed*e)),l.render(u,p)}j(),H();
 },{"three":"dKqR","three/examples/jsm/loaders/GLTFLoader.js":"O6i0","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/utils/BufferGeometryUtils.js":"Jcll","stats.js":"dnrf","dat.gui":"KkZG","../src/index.js":"uBxZ"}]},{},["UoLN"], null)
\ No newline at end of file
diff --git a/example/bundle/pointCloudIntersection.fd058085.js b/example/bundle/pointCloudIntersection.fd058085.js
index 1e8394229..b6d67be15 100644
--- a/example/bundle/pointCloudIntersection.fd058085.js
+++ b/example/bundle/pointCloudIntersection.fd058085.js
@@ -7,7 +7,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
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i.preventDefault(),t=i.clientX,A.addClass(e.__closeButton,oe.CLASS_DRAG),A.bind(window,"mousemove",n),A.bind(window,"mouseup",o),!1}e.__resize_handle=document.createElement("div"),i.extend(e.__resize_handle.style,{width:"6px",marginLeft:"-3px",height:"200px",cursor:"ew-resize",position:"absolute"}),A.bind(e.__resize_handle,"mousedown",r),A.bind(e.__closeButton,"mousedown",r),e.domElement.insertBefore(e.__resize_handle,e.domElement.firstElementChild)}function fe(e,t){e.domElement.style.width=t+"px",e.__save_row&&e.autoPlace&&(e.__save_row.style.width=t+"px"),e.__closeButton&&(e.__closeButton.style.width=t+"px")}function me(e,t){var n={};return i.each(e.__rememberedObjects,function(o,r){var s={},a=e.__rememberedObjectIndecesToControllers[r];i.each(a,function(e,n){s[n]=t?e.initialValue:e.getValue()}),n[r]=s}),n}function ge(e){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].value===e.preset&&(e.__preset_select.selectedIndex=t)}function 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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTri=s;var e=require("three"),r=new e.Vector3,t=new e.Vector3,n=new e.Vector3,i=new e.Vector2,o=new e.Vector2,u=new e.Vector2,a=new e.Vector3,c=new e.Vector3;function f(r,t,n,i,o,u,a,f){if(null===(t.side===e.BackSide?i.intersectTriangle(a,u,o,!0,f):i.intersectTriangle(o,u,a,t.side!==e.DoubleSide,f)))return null;c.copy(f),c.applyMatrix4(r.matrixWorld);var l=n.ray.origin.distanceTo(c);return l<n.near||l>n.far?null:{distance:l,point:c.clone(),object:r}}function l(c,l,s,d,b,m,V,g){r.fromBufferAttribute(d,m),t.fromBufferAttribute(d,V),n.fromBufferAttribute(d,g);var w=f(c,c.material,l,s,r,t,n,a);if(w){b&&(i.fromBufferAttribute(b,m),o.fromBufferAttribute(b,V),u.fromBufferAttribute(b,g),w.uv=e.Triangle.getUV(a,r,t,n,i,o,u,new e.Vector2));var x={a:m,b:V,c:g,normal:new e.Vector3,materialIndex:0};e.Triangle.getNormal(r,t,n,x.normal),w.face=x,w.faceIndex=m}return w}function s(e,r,t,n,i,o){var u=3*i,a=r.index.getX(u),c=r.index.getX(u+1),f=r.index.getX(u+2),s=l(e,t,n,r.attributes.position,r.attributes.uv,a,c,f);return s?(s.faceIndex=i,o&&o.push(s),s):null}
 },{"three":"dKqR"}],"KhBA":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.intersectTris=r,exports.intersectClosestTri=t;var e=require("./ThreeIntersectionUtilities.js");function r(r,t,i,s,n,c,o){for(var u=n,a=n+c;u<a;u++)(0,e.intersectTri)(r,t,i,s,u,o)}function t(r,t,i,s,n,c){for(var o=1/0,u=null,a=n,l=n+c;a<l;a++){var f=(0,e.intersectTri)(r,t,i,s,a);f&&f.distance<o&&(u=f,o=f.distance)}return u}
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-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=f,exports.raycastFirst=g,exports.intersectsGeometry=exports.shapecast=void 0;var e=require("three"),t=require("./Utils/RayIntersectTriUtlities.js"),n=require("./Utils/ArrayBoxUtilities.js"),r=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),o=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Constants.js"),u=new e.Box3,s=new e.Vector3,c=["x","y","z"];function l(e,t,r){return(0,n.arrayToBox)(e.boundingData,u),t.intersectBox(u,r)}function f(e,n,r,i,o){e.continueGeneration&&e.continueGeneration(),!!e.count?(0,t.intersectTris)(n,n.geometry,r,i,e.offset,e.count,o):(l(e.left,i,s)&&f(e.left,n,r,i,o),l(e.right,i,s)&&f(e.right,n,r,i,o))}function g(e,n,r,i){if(e.continueGeneration&&e.continueGeneration(),!!e.count)return(0,t.intersectClosestTri)(n,n.geometry,r,i,e.offset,e.count);var o,a,u=e.splitAxis,f=c[u],x=i.direction[f]>=0;x?(o=e.left,a=e.right):(o=e.right,a=e.left);var d=l(o,i,s)?g(o,n,r,i):null;if(d){var p=d.point[f];if(x?p<=a.boundingData[u]:p>=a.boundingData[u+3])return d}var v=l(a,i,s)?g(a,n,r,i):null;return d&&v?d.distance<=v.distance?d:v:d||v||null}var x=function(){var t=new o.SeparatingAxisTriangle,r=new e.Box3,u=new e.Box3;function s(e,t,n,r,o,a,u){for(var s=n.index,c=n.attributes.position,l=3*e,f=3*(t+e);l<f;l+=3)if((0,i.setTriangle)(u,l,s,c),u.needsUpdate=!0,r(u,l,l+1,l+2,o,a))return!0;return!1}return function e(i,o,c){var l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,f=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,g=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,x=arguments.length>6&&void 0!==arguments[6]?arguments[6]:t,d=arguments.length>7&&void 0!==arguments[7]?arguments[7]:r,p=arguments.length>8&&void 0!==arguments[8]?arguments[8]:u;function v(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.left).continueGeneration&&e.continueGeneration();return e.offset}function y(e){for(e.continueGeneration&&e.continueGeneration();!e.count;)(e=e.right).continueGeneration&&e.continueGeneration();return e.offset+e.count}if(i.continueGeneration&&i.continueGeneration(),!!i.count&&l){var T=o.geometry;return s(i.offset,i.count,T,l,!1,g,x)}var B,b,h,G,m=i.left,D=i.right,w=m,M=D;if(f&&(h=d,G=p,(0,n.arrayToBox)(w.boundingData,h),(0,n.arrayToBox)(M.boundingData,G),B=f(h),(b=f(G))<B)){w=D,M=m;var U=B;B=b,b=U,h=G}h||(h=d,(0,n.arrayToBox)(w.boundingData,h));var A,j=c(h,!!w.count,B,g+1);if(j===a.CONTAINED){var q=o.geometry,O=v(w);A=s(O,y(w)-O,q,l,!0,g+1,x)}else A=j&&e(w,o,c,l,f,g+1,x,d,p);if(A)return!0;G=p,(0,n.arrayToBox)(M.boundingData,G);var C,N=c(G,!!M.count,b,g+1);if(N===a.CONTAINED){var S=o.geometry,I=v(M);C=s(I,y(M)-I,S,l,!0,g+1,x)}else C=N&&e(M,o,c,l,f,g+1,x,d,p);return!!C}}();exports.shapecast=x;var d=function(){var t=new o.SeparatingAxisTriangle,a=new o.SeparatingAxisTriangle,s=new e.Mesh,c=new e.Matrix4,l=new r.OrientedBox,f=new r.OrientedBox;return function e(r,o,g,x){var d=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null;if(r.continueGeneration&&r.continueGeneration(),null===d&&(g.boundingBox||g.computeBoundingBox(),l.set(g.boundingBox.min,g.boundingBox.max,x),l.update(),d=l),!!!r.count){var p=r.left,v=r.right;return(0,n.arrayToBox)(p.boundingData,u),d.intersectsBox(u)&&e(p,o,g,x,d)?!0:((0,n.arrayToBox)(v.boundingData,u),!(!d.intersectsBox(u)||!e(v,o,g,x,d)))}var y=o.geometry,T=y.index,B=y.attributes.position,b=g.index,h=g.attributes.position,G=r.offset,m=r.count;if(c.copy(x).invert(),g.boundsTree){(0,n.arrayToBox)(r.boundingData,f),f.matrix.copy(c),f.update(),s.geometry=g;var D=g.boundsTree.shapecast(s,function(e){return f.intersectsBox(e)},function(e){e.a.applyMatrix4(x),e.b.applyMatrix4(x),e.c.applyMatrix4(x),e.update();for(var t=3*G,n=3*(m+G);t<n;t+=3)if((0,i.setTriangle)(a,t,T,B),a.update(),e.intersectsTriangle(a))return!0;return!1});return s.geometry=null,D}for(var w=3*G,M=m+3*G;w<M;w+=3){(0,i.setTriangle)(t,w,T,B),t.a.applyMatrix4(c),t.b.applyMatrix4(c),t.c.applyMatrix4(c),t.update();for(var U=0,A=b.count;U<A;U+=3)if((0,i.setTriangle)(a,U,b,h),a.update(),t.intersectsTriangle(a))return!0}}}();exports.intersectsGeometry=d;
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-},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
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o}}}}function l(e,t){if(e){if("string"==typeof e)return f(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?f(e,t):void 0}}function f(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function c(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function h(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var y=32,p=65535,g=Symbol("skip tree generation"),b=new n.OrientedBox,x=new e.Vector3,m=new i.SeparatingAxisTriangle,B=new e.Vector3,w=new e.Vector3,k=function(){function n(e){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!e.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(e.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(e.index&&e.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(i=Object.assign(c({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,lazyGeneration:!0,packData:!0},g,!1),i)).strategy=Math.max(0,Math.min(2,i.strategy)),this._isPacked=!1,this._roots=null,i[g]||(this._roots=(0,r.buildTree)(e,i),!i.lazyGeneration&&i.packData&&(this._roots=n.serialize(this,e,!1).roots,this._isPacked=!0))}return h(n,null,[{key:"serialize",value:function(e,t){var r,n,i,o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];function a(e){e.continueGeneration&&e.continueGeneration(),e.count||(a(e.left),a(e.right))}function s(e){return e.count?1:1+s(e.left)+s(e.right)}function u(e,t){for(var o=e/4,a=e/2,s=!!t.count,l=t.boundingData,f=0;f<6;f++)r[o+f]=l[f];if(s){var c=t.offset,d=t.count;return n[o+6]=c,i[a+14]=d,i[a+15]=p,e+y}var v,h=t.left,g=t.right,b=t.splitAxis;return v=u(e+y,h),n[o+6]=v/4,v=u(v,g),n[o+7]=b,v}var l,f=e._roots;if(e._isPacked)l=f;else{l=[];for(var c=0;c<f.length;c++){var d=f[c];a(d);var v=s(d),h=new ArrayBuffer(y*v);r=new Float32Array(h),n=new Uint32Array(h),i=new Uint16Array(h),u(0,d),l.push(h)}}var g=t.getIndex();return{roots:l,index:o?g.array.slice():g.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],o=t.index,a=t.roots,s=new n(r,c({},g,!0));if(s._roots=a,s._isPacked=!0,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==o&&(u.array.set(o),u.needsUpdate=!0)}return s}}]),h(n,[{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(this._isPacked){var r=this._roots[t],n=new Uint32Array(r),i=new Uint16Array(r);!function t(o){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,s=2*o,u=i[s+15];if(u){var l=n[o+6],f=i[s+14];e(a,u,new Float32Array(r,4*o,6),l,f)}else{var c=o+y/4,d=n[o+6],v=n[o+7];e(a,u,new Float32Array(r,4*o,6),v,!1)||(t(c,a+1),t(d,a+1))}}(0)}else{!function t(r){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,i=!!r.count;i?e(n,i,r.boundingData,r.offset,r.count):e(n,i,r.boundingData,r.splitAxis,!!r.continueGeneration)||(r.left&&t(r.left,n+1),r.right&&t(r.right,n+1))}(this._roots[t])}}},{key:"raycast",value:function(e,t,r,n){var i,o=this._isPacked,l=u(this._roots);try{for(l.s();!(i=l.n()).done;){var f=i.value;o?((0,s.setBuffer)(f),(0,s.raycastBuffer)(0,e,t,r,n)):(0,a.raycast)(f,e,t,r,n)}}catch(c){l.e(c)}finally{l.f()}o&&(0,s.clearBuffer)()}},{key:"raycastFirst",value:function(e,t,r){var n,i=this._isPacked,o=null,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value,c=void 0;i?((0,s.setBuffer)(f),c=(0,s.raycastFirstBuffer)(0,e,t,r)):c=(0,a.raycastFirst)(f,e,t,r),null!=c&&(null==o||c.distance<o.distance)&&(o=c)}}catch(d){l.e(d)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this._isPacked,o=!1,l=u(this._roots);try{for(l.s();!(n=l.n()).done;){var f=n.value;if(i?((0,s.setBuffer)(f),o=(0,s.intersectsGeometryBuffer)(0,e,t,r)):o=(0,a.intersectsGeometry)(f,e,t,r),o)break}}catch(c){l.e(c)}finally{l.f()}return i&&(0,s.clearBuffer)(),o}},{key:"shapecast",value:function(e,t){var r,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,o=this._isPacked,l=!1,f=u(this._roots);try{for(f.s();!(r=f.n()).done;){var c=r.value;if(o?((0,s.setBuffer)(c),l=(0,s.shapecastBuffer)(0,e,t,n,i)):l=(0,a.shapecast)(c,e,t,n,i),l)break}}catch(d){f.e(d)}finally{f.f()}return o&&(0,s.clearBuffer)(),l}},{key:"intersectsBox",value:function(e,t,r){return b.set(t.min,t.max,r),b.update(),this.shapecast(e,function(e){return b.intersectsBox(e)},function(e){return b.intersectsTriangle(e)})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,function(e){return t.intersectsBox(e)},function(e){return e.intersectsSphere(t)})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),b.set(t.boundingBox.min,t.boundingBox.max,r),b.update();var u=t.attributes.position,l=t.index,f=null,c=null;n&&(f=B),i&&(c=w);var d=1/0;return this.shapecast(e,function(e,t,r){return r<d&&r<s},function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,o.setTriangle)(m,s,l,u),m.a.applyMatrix4(r),m.b.applyMatrix4(r),m.c.applyMatrix4(r),m.sphere.setFromPoints(m.points);var h=m.sphere;if(!(h.center.distanceTo(t.center)-h.radius-t.radius>d)){m.update();var y=e.distanceToTriangle(m,f,c);if(y<d&&(n&&n.copy(f),i&&i.copy(c),d=y),y<a)return!0}}return!1},function(e){return b.distanceToBox(e,Math.min(d,s))}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,o=1/0;return this.shapecast(e,function(e,t,r){return r<o&&r<i},function(e){e.closestPointToPoint(t,x);var i=t.distanceTo(x);return i<o&&(r&&r.copy(x),o=i),i<n},function(e){return e.distanceToPoint(t)}),o}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}}]),n}();exports.default=k;
-},{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./castFunctionsBuffer.js":"auUu"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return h(this,r)}}function h(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,b=new t.Box3,m=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e._oldDepth=-1,e.mesh=t,e._boundsTree=null,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this;this._oldDepth=this.depth,this._boundsTree=this.mesh.geometry.boundsTree;var o=0;for(this._boundsTree&&this._boundsTree.traverse(function(n,i,u,s,c){var a=i||c;if(n>=r.depth)return!0;if(n===r.depth-1||a){var l=o<r.children.length?r.children[o]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),o++,(0,e.arrayToBox)(u,b),b.getCenter(l.position),l.scale.subVectors(b.max,b.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>o;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new m(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),_=g;exports.default=_;
+},{"./ThreeIntersectionUtilities.js":"lzxM"}],"dxfM":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.arrayToBox=r,exports.iterateOverTriangles=t;var e=require("./TriangleUtils.js");function r(e,r,t){t.min.x=r[e],t.min.y=r[e+1],t.min.z=r[e+2],t.max.x=r[e+3],t.max.y=r[e+4],t.max.z=r[e+5]}function t(r,t,i,n,a,s,o){for(var x=i.index,u=i.attributes.position,l=r,m=t+r;l<m;l++)if((0,e.setTriangle)(o,3*l,x,u),o.needsUpdate=!0,n(o,l,a,s))return!0;return!1}
+},{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.raycast=x,exports.raycastFirst=c,exports.setBuffer=h,exports.clearBuffer=w,exports.intersectsGeometry=exports.shapecast=void 0;var r=require("three"),e=require("./Utils/RayIntersectTriUtlities.js"),t=require("./Utils/BufferNodeUtils.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/TriangleUtils.js"),a=require("./Utils/SeparatingAxisTriangle.js"),o=require("./Constants.js"),s=new r.Box3,u=new r.Vector3,l=["x","y","z"];function x(r,t,n,i,a,o){var s=2*r,l=g,c=y,p=B;if(65535===c[s+15]){var v=p[r+6],d=c[s+14];(0,e.intersectTris)(t,n,i,a,v,d,o)}else{var T=r+8;f(T,l,a,u)&&x(T,t,n,i,a,o);var h=p[r+6];f(h,l,a,u)&&x(h,t,n,i,a,o)}}function c(r,t,n,i,a){var o=2*r,s=g,x=y,p=B;if(65535===x[o+15]){var v=p[r+6],d=x[o+14];return(0,e.intersectClosestTri)(t,n,i,a,v,d)}var T,h,w=p[r+7],b=l[w],U=a.direction[b]>=0;U?(T=r+8,h=p[r+6]):(T=p[r+6],h=r+8);var A=f(T,s,a,u)?c(T,t,n,i,a):null;if(A){var M=A.point[b];if(U?M<=s[h+w]:M>=s[h+w+3])return A}var m=f(h,s,a,u)?c(h,t,n,i,a):null;return A&&m?A.distance<=m.distance?A:m:A||m||null}var p=function(){var e=new a.SeparatingAxisTriangle,n=new r.Box3,i=new r.Box3;return function r(a,s,u,l,x){var c=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,p=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,v=arguments.length>7&&void 0!==arguments[7]?arguments[7]:0,f=arguments.length>8&&void 0!==arguments[8]?arguments[8]:e,d=arguments.length>9&&void 0!==arguments[9]?arguments[9]:n,T=arguments.length>10&&void 0!==arguments[10]?arguments[10]:i;function h(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r+=8);return n[r+6]}function w(r){for(var e=2*r,t=y,n=B;65535!==t[e+15];)e=2*(r=n[r+6]);return n[r+6]+t[e+14]}var b=2*a,U=g,A=y,M=B;if(65535===A[b+15])return x(M[a+6],A[b+14],!1,v,a);var m,j,q,O,N=a+8,C=M[a+6],S=N,I=C;if(c&&(q=d,O=T,(0,t.arrayToBox)(S,U,q),(0,t.arrayToBox)(I,U,O),m=c(q),(j=c(O))<m)){S=C,I=N;var D=m;m=j,j=D,q=O}q||(q=d,(0,t.arrayToBox)(S,U,q));var E,F=l(q,65535===A[2*S+15],m,v+1,p+S);if(F===o.CONTAINED){var G=h(S);E=x(G,w(S)-G,!0,v+1,p+S)}else E=F&&r(S,s,u,l,x,c,p,v+1,f,d,T);if(E)return!0;O=T,(0,t.arrayToBox)(I,U,O);var _,z=l(O,65535===A[2*I+15],j,v+1,p+I);if(z===o.CONTAINED){var P=h(I);_=x(P,w(I)-P,!0,v+1,p+I)}else _=z&&r(I,s,u,l,x,c,p,v+1,f,d,T);return!!_}}();exports.shapecast=p;var v=function(){var e=new a.SeparatingAxisTriangle,o=new a.SeparatingAxisTriangle,u=new r.Mesh,l=new r.Matrix4,x=new n.OrientedBox,c=new n.OrientedBox;return function r(n,a,p,v,f){var d=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,T=2*n,h=g,w=y,b=B;if(null===d&&(v.boundingBox||v.computeBoundingBox(),x.set(v.boundingBox.min,v.boundingBox.max,f),x.update(),d=x),!(65535===w[T+15])){var U=n+8,A=b[n+6];return(0,t.arrayToBox)(U,h,s),d.intersectsBox(s)&&r(U,a,p,v,f,d)?!0:((0,t.arrayToBox)(A,h,s),!(!d.intersectsBox(s)||!r(A,a,p,v,f,d)))}var M=p,m=M.index,j=M.attributes.position,q=v.index,O=v.attributes.position,N=b[n+6],C=w[T+14];if(l.copy(f).invert(),v.boundsTree){(0,t.arrayToBox)(n,h,c),c.matrix.copy(l),c.update(),u.geometry=v;var S=v.boundsTree.shapecast(u,{intersectsBounds:function(r){return c.intersectsBox(r)},intersectsTriangle:function(r){r.a.applyMatrix4(f),r.b.applyMatrix4(f),r.c.applyMatrix4(f),r.update();for(var e=3*N,t=3*(C+N);e<t;e+=3)if((0,i.setTriangle)(o,e,m,j),o.update(),r.intersectsTriangle(o))return!0;return!1}});return u.geometry=null,S}for(var I=3*N,D=C+3*N;I<D;I+=3){(0,i.setTriangle)(e,I,m,j),e.a.applyMatrix4(l),e.b.applyMatrix4(l),e.c.applyMatrix4(l),e.update();for(var E=0,F=q.count;E<F;E+=3)if((0,i.setTriangle)(o,E,q,O),o.update(),e.intersectsTriangle(o))return!0}}}();function f(r,e,n,i){return(0,t.arrayToBox)(r,e,s),n.intersectBox(s,i)}exports.intersectsGeometry=v;var d,g,y,B,T=[];function h(r){d&&T.push(d),d=r,g=new Float32Array(r),y=new Uint16Array(r),B=new Uint32Array(r)}function w(){d=null,g=null,y=null,B=null,T.length&&h(T.pop())}
+},{"three":"dKqR","./Utils/RayIntersectTriUtlities.js":"KhBA","./Utils/BufferNodeUtils.js":"dxfM","./Utils/OrientedBox.js":"KHU9","./Utils/TriangleUtils.js":"AtwI","./Utils/SeparatingAxisTriangle.js":"HHjx","./Constants.js":"tuIt"}],"nIyY":[function(require,module,exports) {
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var e=require("three"),t=require("./Constants.js"),r=require("./buildFunctions.js"),n=require("./Utils/OrientedBox.js"),i=require("./Utils/SeparatingAxisTriangle.js"),a=require("./Utils/TriangleUtils.js"),o=require("./castFunctions.js"),s=require("./Utils/BufferNodeUtils.js");function u(e,t){var r="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!r){if(Array.isArray(e)||(r=l(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,i=function(){};return{s:i,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=r.call(e)},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function l(e,t){if(e){if("string"==typeof e)return c(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?c(e,t):void 0}}function c(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function f(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function v(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function y(e,t,r){return t&&v(e.prototype,t),r&&v(e,r),e}var h=Symbol("skip tree generation"),g=new n.OrientedBox,p=new e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
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@@ -45,5 +45,5 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
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+"use strict";var e,t,r,n,i,o,a,s,d=y(require("stats.js/src/Stats")),p=f(require("three")),c=require("three/examples/jsm/controls/OrbitControls.js"),l=require("three/examples/jsm/loaders/PLYLoader.js"),u=require("dat.gui"),w=require("../src/index.js");function h(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(h=function(e){return e?r:t})(e)}function f(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=h(t);if(r&&r.has(e))return r.get(e);var n={},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if("default"!==o&&Object.prototype.hasOwnProperty.call(e,o)){var a=i?Object.getOwnPropertyDescriptor(e,o):null;a&&(a.get||a.set)?Object.defineProperty(n,o,a):n[o]=e[o]}return n.default=e,r&&r.set(e,n),n}function y(e){return e&&e.__esModule?e:{default:e}}p.Mesh.prototype.raycast=w.acceleratedRaycast,p.BufferGeometry.prototype.computeBoundsTree=w.computeBoundsTree,p.BufferGeometry.prototype.disposeBoundsTree=w.disposeBoundsTree;var m,v=new p.Vector2,T="../models/point_cloud_porsche_911_1.7M_vertices/scene.ply",b=new p.Raycaster,x={displayHelper:!1,helperDepth:10,pointSize:.005,raycastThreshold:.005,useBVH:!0};function M(){s=document.getElementById("output"),(n=new p.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),n.setSize(window.innerWidth,window.innerHeight),n.setClearColor(1251612,1),document.body.appendChild(n.domElement),t=new p.Scene,(r=new p.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(3,3,3),r.far=100,r.updateProjectionMatrix(),new c.OrbitControls(r,n.domElement),e=new d.default,document.body.appendChild(e.dom),window.addEventListener("resize",function(){r.aspect=window.innerWidth/window.innerHeight,r.updateProjectionMatrix(),n.setSize(window.innerWidth,window.innerHeight)},!1),(new l.PLYLoader).load(T,function(e){e.center();var r=new p.PointsMaterial({size:x.pointSize,vertexColors:!0});(a=new p.Points(e,r)).matrixAutoUpdate=!1,t.add(a);for(var n=[],s=e.clone(),d=0,c=s.attributes.position.count;d<c;d++)n.push(d,d,d);s.setIndex(n);var l=new p.MeshBasicMaterial({color:16711680});(i=new p.Mesh(s,l)).geometry.computeBoundsTree({lazyGeneration:!1}),o=new w.MeshBVHVisualizer(i,x.depth),t.add(o)});var h=new p.SphereGeometry(.01,32,32),f=new p.MeshBasicMaterial({color:16776960,opacity:.9,transparent:!0});(m=new p.Mesh(h,f)).visible=!1,t.add(m);var y=new u.GUI,v=y.addFolder("helper");v.add(x,"displayHelper"),v.add(x,"helperDepth",1,20,1).name("depth").onChange(function(e){o.depth=parseInt(e),o.update()}),v.open();var b=y.addFolder("points");b.add(x,"useBVH"),b.add(x,"pointSize",.001,.01,.001),b.add(x,"raycastThreshold",.001,.01,.001),b.open()}function g(){requestAnimationFrame(g),a&&(a.material.size=x.pointSize,o.visible=x.displayHelper,b.params.Points.threshold=x.raycastThreshold),e.begin(),n.render(t,r),e.end()}window.addEventListener("pointermove",function(e){if(i){v.x=e.clientX/window.innerWidth*2-1,v.y=-e.clientY/window.innerHeight*2+1,b.setFromCamera(v,r);var t=window.performance.now();if(x.useBVH){m.visible=!1;var n=new p.Matrix4;n.copy(i.matrixWorld).invert(),b.ray.applyMatrix4(n);var o=b.params.Points.threshold/((i.scale.x+i.scale.y+i.scale.z)/3),d=o*o,c=b.ray,l=1/0;i.geometry.boundsTree.shapecast(i,{boundsTraverseOrder:function(e){return e.distanceToPoint(c.origin)},intersectsBounds:function(e,t,r){return r>l?w.NOT_INTERSECTED:(e.expandByScalar(o),c.intersectsBox(e)?w.INTERSECTED:w.NOT_INTERSECTED)},intersectsTriangle:function(e){if(c.distanceSqToPoint(e.a)<d){var t=c.origin.distanceTo(e.a);t<l&&(l=t,m.position.copy(e.a).applyMatrix4(i.matrixWorld),m.visible=!0)}}})}else{var u=b.intersectObject(a,!0)[0];u?(m.position.copy(u.point),m.visible=!0):m.visible=!1}var h=window.performance.now()-t;s.innerText="".concat(h.toFixed(2),"ms")}},!1),M(),g();
 },{"stats.js/src/Stats":"RDO9","three":"dKqR","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/loaders/PLYLoader.js":"FLQP","dat.gui":"KkZG","../src/index.js":"uBxZ"}]},{},["CMV4"], null)
\ No newline at end of file
diff --git a/example/bundle/pointCloudIntersection.html b/example/bundle/pointCloudIntersection.html
index 7a4ea69dd..84bf2561c 100644
--- a/example/bundle/pointCloudIntersection.html
+++ b/example/bundle/pointCloudIntersection.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry point clouds</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#info{position:absolute;top:0;width:100%;color:#fff;font-family:monospace;text-align:center;padding:5px 0}a{color:#eee}#output{position:absolute;bottom:0;left:0;padding:5px;color:#fff;opacity:.5;font-family:monospace}</style></head><body> <div id="info"> Point cloud intersection by modeling points as degenerate triangles with MeshBVH. <br> <br> Model by <a href="https://sketchfab.com/3d-models/1982-porsche-911-sitescape-3d-scan-7e315942b6db428194314285183b5896">SiteScape on Sketchfab</a>. </div> <div id="output"></div> <script src="pointCloudIntersection.fd058085.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry point clouds</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}#info{position:absolute;top:0;width:100%;color:#fff;font-family:monospace;text-align:center;padding:5px 0}a{color:#eee}#output{position:absolute;bottom:0;left:0;padding:5px;color:#fff;opacity:.5;font-family:monospace}</style></head><body> <div id="info"> Point cloud intersection by modeling points as degenerate triangles with MeshBVH. <br> <br> Model by <a href="https://sketchfab.com/3d-models/1982-porsche-911-sitescape-3d-scan-7e315942b6db428194314285183b5896">SiteScape on Sketchfab</a>. </div> <div id="output"></div> <script src="pointCloudIntersection.fd058085.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/randomSampleDebug.32ad2b43.js b/example/bundle/randomSampleDebug.32ad2b43.js
index 9e707691d..1d0b95969 100644
--- a/example/bundle/randomSampleDebug.32ad2b43.js
+++ b/example/bundle/randomSampleDebug.32ad2b43.js
@@ -7,15 +7,15 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -27,9 +27,9 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. 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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
@@ -39,5 +39,5 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"xTGv":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MapControls=exports.OrbitControls=void 0;var e=require("../../../build/three.module.js"),t=function(t,n){var o,a,i,r,c,s;void 0===n&&console.warn('THREE.OrbitControls: The second parameter "domElement" is now mandatory.'),n===document&&console.error('THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.'),this.object=t,this.domElement=n,this.enabled=!0,this.target=new e.Vector3,this.minDistance=0,this.maxDistance=1/0,this.minZoom=0,this.maxZoom=1/0,this.minPolarAngle=0,this.maxPolarAngle=Math.PI,this.minAzimuthAngle=-1/0,this.maxAzimuthAngle=1/0,this.enableDamping=!1,this.dampingFactor=.05,this.enableZoom=!0,this.zoomSpeed=1,this.enableRotate=!0,this.rotateSpeed=1,this.enablePan=!0,this.panSpeed=1,this.screenSpacePanning=!0,this.keyPanSpeed=7,this.autoRotate=!1,this.autoRotateSpeed=2,this.keys={LEFT:37,UP:38,RIGHT:39,BOTTOM:40},this.mouseButtons={LEFT:e.MOUSE.ROTATE,MIDDLE:e.MOUSE.DOLLY,RIGHT:e.MOUSE.PAN},this.touches={ONE:e.TOUCH.ROTATE,TWO:e.TOUCH.DOLLY_PAN},this.target0=this.target.clone(),this.position0=this.object.position.clone(),this.zoom0=this.object.zoom,this._domElementKeyEvents=null,this.getPolarAngle=function(){return E.phi},this.getAzimuthalAngle=function(){return E.theta},this.listenToKeyEvents=function(e){e.addEventListener("keydown",Q),this._domElementKeyEvents=e},this.saveState=function(){u.target0.copy(u.target),u.position0.copy(u.object.position),u.zoom0=u.object.zoom},this.reset=function(){u.target.copy(u.target0),u.object.position.copy(u.position0),u.object.zoom=u.zoom0,u.object.updateProjectionMatrix(),u.dispatchEvent(l),u.update(),d=h.NONE},this.update=(o=new e.Vector3,a=(new e.Quaternion).setFromUnitVectors(t.up,new e.Vector3(0,1,0)),i=a.clone().invert(),r=new e.Vector3,c=new e.Quaternion,s=2*Math.PI,function(){var e=u.object.position;o.copy(e).sub(u.target),o.applyQuaternion(a),E.setFromVector3(o),u.autoRotate&&d===h.NONE&&R(2*Math.PI/60/60*u.autoRotateSpeed),u.enableDamping?(E.theta+=f.theta*u.dampingFactor,E.phi+=f.phi*u.dampingFactor):(E.theta+=f.theta,E.phi+=f.phi);var t=u.minAzimuthAngle,n=u.maxAzimuthAngle;return isFinite(t)&&isFinite(n)&&(t<-Math.PI?t+=s:t>Math.PI&&(t-=s),n<-Math.PI?n+=s:n>Math.PI&&(n-=s),E.theta=t<=n?Math.max(t,Math.min(n,E.theta)):E.theta>(t+n)/2?Math.max(t,E.theta):Math.min(n,E.theta)),E.phi=Math.max(u.minPolarAngle,Math.min(u.maxPolarAngle,E.phi)),E.makeSafe(),E.radius*=O,E.radius=Math.max(u.minDistance,Math.min(u.maxDistance,E.radius)),!0===u.enableDamping?u.target.addScaledVector(g,u.dampingFactor):u.target.add(g),o.setFromSpherical(E),o.applyQuaternion(i),e.copy(u.target).add(o),u.object.lookAt(u.target),!0===u.enableDamping?(f.theta*=1-u.dampingFactor,f.phi*=1-u.dampingFactor,g.multiplyScalar(1-u.dampingFactor)):(f.set(0,0,0),g.set(0,0,0)),O=1,!!(v||r.distanceToSquared(u.object.position)>b||8*(1-c.dot(u.object.quaternion))>b)&&(u.dispatchEvent(l),r.copy(u.object.position),c.copy(u.object.quaternion),v=!1,!0)}),this.dispose=function(){u.domElement.removeEventListener("contextmenu",te),u.domElement.removeEventListener("pointerdown",B),u.domElement.removeEventListener("wheel",q),u.domElement.removeEventListener("touchstart",J),u.domElement.removeEventListener("touchend",ee),u.domElement.removeEventListener("touchmove",$),u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),null!==u._domElementKeyEvents&&u._domElementKeyEvents.removeEventListener("keydown",Q)};var u=this,l={type:"change"},m={type:"start"},p={type:"end"},h={NONE:-1,ROTATE:0,DOLLY:1,PAN:2,TOUCH_ROTATE:3,TOUCH_PAN:4,TOUCH_DOLLY_PAN:5,TOUCH_DOLLY_ROTATE:6},d=h.NONE,b=1e-6,E=new e.Spherical,f=new e.Spherical,O=1,g=new e.Vector3,v=!1,T=new e.Vector2,y=new e.Vector2,P=new e.Vector2,L=new e.Vector2,w=new e.Vector2,A=new e.Vector2,N=new e.Vector2,M=new e.Vector2,j=new e.Vector2;function D(){return Math.pow(.95,u.zoomSpeed)}function R(e){f.theta-=e}function S(e){f.phi-=e}var k,C=(k=new e.Vector3,function(e,t){k.setFromMatrixColumn(t,0),k.multiplyScalar(-e),g.add(k)}),Y=function(){var t=new e.Vector3;return function(e,n){!0===u.screenSpacePanning?t.setFromMatrixColumn(n,1):(t.setFromMatrixColumn(n,0),t.crossVectors(u.object.up,t)),t.multiplyScalar(e),g.add(t)}}(),x=function(){var t=new e.Vector3;return function(e,n){var o=u.domElement;if(u.object.isPerspectiveCamera){var a=u.object.position;t.copy(a).sub(u.target);var i=t.length();i*=Math.tan(u.object.fov/2*Math.PI/180),C(2*e*i/o.clientHeight,u.object.matrix),Y(2*n*i/o.clientHeight,u.object.matrix)}else u.object.isOrthographicCamera?(C(e*(u.object.right-u.object.left)/u.object.zoom/o.clientWidth,u.object.matrix),Y(n*(u.object.top-u.object.bottom)/u.object.zoom/o.clientHeight,u.object.matrix)):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - pan disabled."),u.enablePan=!1)}}();function H(e){u.object.isPerspectiveCamera?O/=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom*e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function U(e){u.object.isPerspectiveCamera?O*=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom/e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function _(e){T.set(e.clientX,e.clientY)}function V(e){L.set(e.clientX,e.clientY)}function z(e){if(1==e.touches.length)T.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);T.set(t,n)}}function I(e){if(1==e.touches.length)L.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);L.set(t,n)}}function X(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);N.set(0,o)}function F(e){if(1==e.touches.length)y.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);y.set(t,n)}P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var o=u.domElement;R(2*Math.PI*P.x/o.clientHeight),S(2*Math.PI*P.y/o.clientHeight),T.copy(y)}function Z(e){if(1==e.touches.length)w.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);w.set(t,n)}A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w)}function K(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);M.set(0,o),j.set(0,Math.pow(M.y/N.y,u.zoomSpeed)),H(j.y),N.copy(M)}function B(t){if(!1!==u.enabled)switch(t.pointerType){case"mouse":case"pen":!function(t){var n;switch(t.preventDefault(),u.domElement.focus?u.domElement.focus():window.focus(),t.button){case 0:n=u.mouseButtons.LEFT;break;case 1:n=u.mouseButtons.MIDDLE;break;case 2:n=u.mouseButtons.RIGHT;break;default:n=-1}switch(n){case e.MOUSE.DOLLY:if(!1===u.enableZoom)return;!function(e){N.set(e.clientX,e.clientY)}(t),d=h.DOLLY;break;case e.MOUSE.ROTATE:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enablePan)return;V(t),d=h.PAN}else{if(!1===u.enableRotate)return;_(t),d=h.ROTATE}break;case e.MOUSE.PAN:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enableRotate)return;_(t),d=h.ROTATE}else{if(!1===u.enablePan)return;V(t),d=h.PAN}break;default:d=h.NONE}d!==h.NONE&&(u.domElement.ownerDocument.addEventListener("pointermove",G),u.domElement.ownerDocument.addEventListener("pointerup",W),u.dispatchEvent(m))}(t)}}function G(e){if(!1!==u.enabled)switch(e.pointerType){case"mouse":case"pen":!function(e){if(!1===u.enabled)return;switch(e.preventDefault(),d){case h.ROTATE:if(!1===u.enableRotate)return;!function(e){y.set(e.clientX,e.clientY),P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var t=u.domElement;R(2*Math.PI*P.x/t.clientHeight),S(2*Math.PI*P.y/t.clientHeight),T.copy(y),u.update()}(e);break;case h.DOLLY:if(!1===u.enableZoom)return;!function(e){M.set(e.clientX,e.clientY),j.subVectors(M,N),j.y>0?H(D()):j.y<0&&U(D()),N.copy(M),u.update()}(e);break;case h.PAN:if(!1===u.enablePan)return;!function(e){w.set(e.clientX,e.clientY),A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w),u.update()}(e)}}(e)}}function W(e){switch(e.pointerType){case"mouse":case"pen":!function(e){if(u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),!1===u.enabled)return;u.dispatchEvent(p),d=h.NONE}()}}function q(e){!1===u.enabled||!1===u.enableZoom||d!==h.NONE&&d!==h.ROTATE||(e.preventDefault(),e.stopPropagation(),u.dispatchEvent(m),function(e){e.deltaY<0?U(D()):e.deltaY>0&&H(D()),u.update()}(e),u.dispatchEvent(p))}function Q(e){!1!==u.enabled&&!1!==u.enablePan&&function(e){var t=!1;switch(e.keyCode){case u.keys.UP:x(0,u.keyPanSpeed),t=!0;break;case u.keys.BOTTOM:x(0,-u.keyPanSpeed),t=!0;break;case u.keys.LEFT:x(u.keyPanSpeed,0),t=!0;break;case u.keys.RIGHT:x(-u.keyPanSpeed,0),t=!0}t&&(e.preventDefault(),u.update())}(e)}function J(t){if(!1!==u.enabled){switch(t.preventDefault(),t.touches.length){case 1:switch(u.touches.ONE){case e.TOUCH.ROTATE:if(!1===u.enableRotate)return;z(t),d=h.TOUCH_ROTATE;break;case e.TOUCH.PAN:if(!1===u.enablePan)return;I(t),d=h.TOUCH_PAN;break;default:d=h.NONE}break;case 2:switch(u.touches.TWO){case e.TOUCH.DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&X(e),u.enablePan&&I(e)}(t),d=h.TOUCH_DOLLY_PAN;break;case e.TOUCH.DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&X(e),u.enableRotate&&z(e)}(t),d=h.TOUCH_DOLLY_ROTATE;break;default:d=h.NONE}break;default:d=h.NONE}d!==h.NONE&&u.dispatchEvent(m)}}function $(e){if(!1!==u.enabled)switch(e.preventDefault(),e.stopPropagation(),d){case h.TOUCH_ROTATE:if(!1===u.enableRotate)return;F(e),u.update();break;case h.TOUCH_PAN:if(!1===u.enablePan)return;Z(e),u.update();break;case h.TOUCH_DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&K(e),u.enablePan&&Z(e)}(e),u.update();break;case h.TOUCH_DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&K(e),u.enableRotate&&F(e)}(e),u.update();break;default:d=h.NONE}}function ee(e){!1!==u.enabled&&(u.dispatchEvent(p),d=h.NONE)}function te(e){!1!==u.enabled&&e.preventDefault()}u.domElement.addEventListener("contextmenu",te),u.domElement.addEventListener("pointerdown",B),u.domElement.addEventListener("wheel",q),u.domElement.addEventListener("touchstart",J),u.domElement.addEventListener("touchend",ee),u.domElement.addEventListener("touchmove",$),this.update()};exports.OrbitControls=t,t.prototype=Object.create(e.EventDispatcher.prototype),t.prototype.constructor=t;var n=function(n,o){t.call(this,n,o),this.screenSpacePanning=!1,this.mouseButtons.LEFT=e.MOUSE.PAN,this.mouseButtons.RIGHT=e.MOUSE.ROTATE,this.touches.ONE=e.TOUCH.PAN,this.touches.TWO=e.TOUCH.DOLLY_ROTATE};exports.MapControls=n,n.prototype=Object.create(e.EventDispatcher.prototype),n.prototype.constructor=n;
 },{"../../../build/three.module.js":"dKqR"}],"OLLT":[function(require,module,exports) {
-"use strict";var e,t,r,n=c(require("three")),o=require("../src/index.js"),i=s(require("../src/MeshBVHVisualizer.js")),a=require("three/examples/jsm/controls/OrbitControls.js");function s(e){return e&&e.__esModule?e:{default:e}}function d(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return d=function(){return e},e}function c(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var t=d();if(t&&t.has(e))return t.get(e);var r={},n=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if(Object.prototype.hasOwnProperty.call(e,o)){var i=n?Object.getOwnPropertyDescriptor(e,o):null;i&&(i.get||i.set)?Object.defineProperty(r,o,i):r[o]=e[o]}return r.default=e,t&&t.set(e,r),r}n.Mesh.prototype.raycast=o.acceleratedRaycast,n.BufferGeometry.prototype.computeBoundsTree=o.computeBoundsTree,n.BufferGeometry.prototype.disposeBoundsTree=o.disposeBoundsTree;var u=[],l=null;function p(){if(null===l)throw new Error;return(l=(1103515245*l+12345)%2e31)/2e31}function w(){(e=new n.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),e.setSize(window.innerWidth,window.innerHeight),e.setClearColor(1118481,1),e.gammaOutput=!0,document.body.appendChild(e.domElement),r=new n.Scene;var s=new n.DirectionalLight(16777215,1);s.position.set(1,1,1),r.add(s),r.add(new n.AmbientLight(11583173,.8)),(t=new n.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,4),t.far=100,t.updateProjectionMatrix(),new a.OrbitControls(t,e.domElement);var d={strategy:o.AVERAGE,packData:!1,lazyGeneration:!1,maxDepth:1},c=new n.TorusBufferGeometry(1,1,40,10);c.computeBoundsTree(d),l=7830035629,p();for(var w=0;w<10;w++){var f=new n.Mesh(c,new n.MeshStandardMaterial);if(f.rotation.x=10*p(),f.rotation.y=10*p(),f.rotation.z=10*p(),f.position.x=p(),f.position.y=p(),f.position.z=p(),2===w){u.push(f),r.add(f);var y=f.clone();y.material=new n.MeshBasicMaterial({wireframe:!0,color:16737894}),r.add(y);var m=new i.default(f,10);r.add(m)}f.updateMatrix(!0),f.updateMatrixWorld(!0)}l=4697211981,p();var h=new n.Raycaster;h.firstHitOnly=!1,h.ray.origin.set(10*p(),10*p(),10*p()),h.ray.direction.copy(h.ray.origin).multiplyScalar(-1).normalize();var v=new n.SphereBufferGeometry(.1),g=new n.Mesh(v);g.position.copy(h.ray.at(0)),r.add(g);var O=h.intersectObjects(u,!0);h.firstHitOnly=!0;var M=h.intersectObjects(u,!0);c.boundsTree=null;var b=h.intersectObjects(u,!0);console.log("FIRST HIT",M),console.log("BVH HITS",O),console.log("OG HITS",b);var j=g.clone();j.position.copy(M[0].point),r.add(j);var B=g.clone();B.position.copy(O[0].point),r.add(B);var x=new n.Line;x.geometry.setFromPoints([h.ray.at(0,new n.Vector3),h.ray.at(20,new n.Vector3)]),r.add(x),window.addEventListener("resize",function(){t.aspect=window.innerWidth/window.innerHeight,t.updateProjectionMatrix(),e.setSize(window.innerWidth,window.innerHeight)},!1)}function f(){requestAnimationFrame(f),e.render(r,t)}w(),f();
+"use strict";var e,t,r,n=c(require("three")),o=require("../src/index.js"),i=s(require("../src/MeshBVHVisualizer.js")),a=require("three/examples/jsm/controls/OrbitControls.js");function s(e){return e&&e.__esModule?e:{default:e}}function d(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(d=function(e){return e?r:t})(e)}function c(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=d(t);if(r&&r.has(e))return r.get(e);var n={},o=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var i in e)if("default"!==i&&Object.prototype.hasOwnProperty.call(e,i)){var a=o?Object.getOwnPropertyDescriptor(e,i):null;a&&(a.get||a.set)?Object.defineProperty(n,i,a):n[i]=e[i]}return n.default=e,r&&r.set(e,n),n}n.Mesh.prototype.raycast=o.acceleratedRaycast,n.BufferGeometry.prototype.computeBoundsTree=o.computeBoundsTree,n.BufferGeometry.prototype.disposeBoundsTree=o.disposeBoundsTree;var u=[],l=null;function p(){if(null===l)throw new Error;return(l=(1103515245*l+12345)%2e31)/2e31}function w(){(e=new n.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),e.setSize(window.innerWidth,window.innerHeight),e.setClearColor(1118481,1),e.gammaOutput=!0,document.body.appendChild(e.domElement),r=new n.Scene;var s=new n.DirectionalLight(16777215,1);s.position.set(1,1,1),r.add(s),r.add(new n.AmbientLight(11583173,.8)),(t=new n.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,4),t.far=100,t.updateProjectionMatrix(),new a.OrbitControls(t,e.domElement);var d={strategy:o.AVERAGE,packData:!1,lazyGeneration:!1,maxDepth:1},c=new n.TorusBufferGeometry(1,1,40,10);c.computeBoundsTree(d),l=7830035629,p();for(var w=0;w<10;w++){var f=new n.Mesh(c,new n.MeshStandardMaterial);if(f.rotation.x=10*p(),f.rotation.y=10*p(),f.rotation.z=10*p(),f.position.x=p(),f.position.y=p(),f.position.z=p(),2===w){u.push(f),r.add(f);var y=f.clone();y.material=new n.MeshBasicMaterial({wireframe:!0,color:16737894}),r.add(y);var m=new i.default(f,10);r.add(m)}f.updateMatrix(!0),f.updateMatrixWorld(!0)}l=4697211981,p();var h=new n.Raycaster;h.firstHitOnly=!1,h.ray.origin.set(10*p(),10*p(),10*p()),h.ray.direction.copy(h.ray.origin).multiplyScalar(-1).normalize();var v=new n.SphereBufferGeometry(.1),g=new n.Mesh(v);g.position.copy(h.ray.at(0)),r.add(g);var M=h.intersectObjects(u,!0);h.firstHitOnly=!0;var O=h.intersectObjects(u,!0);c.boundsTree=null;var b=h.intersectObjects(u,!0);console.log("FIRST HIT",O),console.log("BVH HITS",M),console.log("OG HITS",b);var j=g.clone();j.position.copy(O[0].point),r.add(j);var B=g.clone();B.position.copy(M[0].point),r.add(B);var x=new n.Line;x.geometry.setFromPoints([h.ray.at(0,new n.Vector3),h.ray.at(20,new n.Vector3)]),r.add(x),window.addEventListener("resize",function(){t.aspect=window.innerWidth/window.innerHeight,t.updateProjectionMatrix(),e.setSize(window.innerWidth,window.innerHeight)},!1)}function f(){requestAnimationFrame(f),e.render(r,t)}w(),f();
 },{"three":"dKqR","../src/index.js":"uBxZ","../src/MeshBVHVisualizer.js":"jNwr","three/examples/jsm/controls/OrbitControls.js":"xTGv"}]},{},["OLLT"], null)
\ No newline at end of file
diff --git a/example/bundle/raycast.88074831.js b/example/bundle/raycast.88074831.js
index 0b829ad30..cd70e4c0f 100644
--- a/example/bundle/raycast.88074831.js
+++ b/example/bundle/raycast.88074831.js
@@ -2,7 +2,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 
 var e=module.exports="undefined"!=typeof window&&window.Math==Math?window:"undefined"!=typeof self&&self.Math==Math?self:Function("return this")();"number"==typeof __g&&(__g=e);
 },{}],"ss9A":[function(require,module,exports) {
-var e=module.exports={version:"2.6.11"};"number"==typeof __e&&(__e=e);
+var e=module.exports={version:"2.6.12"};"number"==typeof __e&&(__e=e);
 },{}],"M7z6":[function(require,module,exports) {
 module.exports=function(o){return"object"==typeof o?null!==o:"function"==typeof o};
 },{}],"eT53":[function(require,module,exports) {
@@ -31,7 +31,7 @@ var o=0,t=Math.random();module.exports=function(n){return"Symbol(".concat(void 0
 module.exports=!1;
 },{}],"zGcK":[function(require,module,exports) {
 
-var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2019 Denis Pushkarev (zloirock.ru)"});
+var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2020 Denis Pushkarev (zloirock.ru)"});
 },{"./_core":"ss9A","./_global":"qf4T","./_library":"H21C"}],"d5RU":[function(require,module,exports) {
 module.exports=require("./_shared")("native-function-to-string",Function.toString);
 },{"./_shared":"zGcK"}],"PHot":[function(require,module,exports) {
@@ -78,7 +78,11 @@ var r=require("./_is-object"),e=require("./_is-array"),o=require("./_wks")("spec
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+},{"./_ctx":"E3Kh","./_iobject":"nGau","./_to-object":"rfVX","./_to-length":"dJBs","./_array-species-create":"igas"}],"Hh2M":[function(require,module,exports) {
+"use strict";var l=require("./_fails");module.exports=function(n,u){return!!n&&l(function(){u?n.call(null,function(){},1):n.call(null)})};
+},{"./_fails":"BXiR"}],"GyG6":[function(require,module,exports) {
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+},{"./_export":"izCb","./_array-methods":"AuPh","./_strict-method":"Hh2M"}],"Qppk":[function(require,module,exports) {
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F?(A.bind(t,"click",function(){A.fakeEvent(n.__button,"click")}),A.bind(t,"mouseover",function(){A.addClass(n.__button,"hover")}),A.bind(t,"mouseout",function(){A.removeClass(n.__button,"hover")})):n instanceof P&&(A.addClass(t,"color"),n.updateDisplay=i.compose(function(e){return t.style.borderLeftColor=n.__color.toString(),e},n.updateDisplay),n.updateDisplay());n.setValue=i.compose(function(t){return e.getRoot().__preset_select&&n.isModified()&&se(e.getRoot(),!0),t},n.setValue)}function le(e,t){var n=e.getRoot(),o=n.__rememberedObjects.indexOf(t.object);if(-1!==o){var i=n.__rememberedObjectIndecesToControllers[o];if(void 0===i&&(i={},n.__rememberedObjectIndecesToControllers[o]=i),i[t.property]=t,n.load&&n.load.remembered){var r=n.load.remembered,s=void 0;if(r[e.preset])s=r[e.preset];else{if(!r[Q])return;s=r[Q]}if(s[o]&&void 0!==s[o][t.property]){var a=s[o][t.property];t.initialValue=a,t.setValue(a)}}}}function de(e,t,n,o){if(void 0===t[n])throw new Error('Object "'+t+'" has no 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l=document.getElementById("dg-local-explain"),d=document.getElementById("dg-local-storage");document.getElementById("dg-save-locally").style.display="block","true"===localStorage.getItem(ce(e,"isLocal"))&&d.setAttribute("checked","checked"),_e(e,l),A.bind(d,"change",function(){e.useLocalStorage=!e.useLocalStorage,_e(e,l)})}var c=document.getElementById("dg-new-constructor");A.bind(c,"keydown",function(e){!e.metaKey||67!==e.which&&67!==e.keyCode||Z.hide()}),A.bind(n,"click",function(){c.innerHTML=JSON.stringify(e.getSaveObject(),void 0,2),Z.show(),c.focus(),c.select()}),A.bind(o,"click",function(){e.save()}),A.bind(r,"click",function(){var t=prompt("Enter a new preset name.");t&&e.saveAs(t)}),A.bind(s,"click",function(){e.revert()})}function pe(e){var t=void 0;function n(n){return n.preventDefault(),e.width+=t-n.clientX,e.onResize(),t=n.clientX,!1}function o(){A.removeClass(e.__closeButton,oe.CLASS_DRAG),A.unbind(window,"mousemove",n),A.unbind(window,"mouseup",o)}function r(i){return i.preventDefault(),t=i.clientX,A.addClass(e.__closeButton,oe.CLASS_DRAG),A.bind(window,"mousemove",n),A.bind(window,"mouseup",o),!1}e.__resize_handle=document.createElement("div"),i.extend(e.__resize_handle.style,{width:"6px",marginLeft:"-3px",height:"200px",cursor:"ew-resize",position:"absolute"}),A.bind(e.__resize_handle,"mousedown",r),A.bind(e.__closeButton,"mousedown",r),e.domElement.insertBefore(e.__resize_handle,e.domElement.firstElementChild)}function fe(e,t){e.domElement.style.width=t+"px",e.__save_row&&e.autoPlace&&(e.__save_row.style.width=t+"px"),e.__closeButton&&(e.__closeButton.style.width=t+"px")}function me(e,t){var n={};return i.each(e.__rememberedObjects,function(o,r){var s={},a=e.__rememberedObjectIndecesToControllers[r];i.each(a,function(e,n){s[n]=t?e.initialValue:e.getValue()}),n[r]=s}),n}function ge(e){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].value===e.preset&&(e.__preset_select.selectedIndex=t)}function 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de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
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0,exports.ShapeBufferGeometry=exports.Shape=exports.ShadowMaterial=exports.ShaderLib=exports.ShaderChunk=exports.SceneUtils=exports.Scene=exports.SRGB8_ALPHA8_ASTC_8x8_Format=exports.SRGB8_ALPHA8_ASTC_8x6_Format=exports.SRGB8_ALPHA8_ASTC_8x5_Format=exports.SRGB8_ALPHA8_ASTC_6x6_Format=exports.SRGB8_ALPHA8_ASTC_6x5_Format=exports.SRGB8_ALPHA8_ASTC_5x5_Format=exports.SRGB8_ALPHA8_ASTC_5x4_Format=exports.SRGB8_ALPHA8_ASTC_4x4_Format=exports.SRGB8_ALPHA8_ASTC_12x12_Format=exports.SRGB8_ALPHA8_ASTC_12x10_Format=exports.SRGB8_ALPHA8_ASTC_10x8_Format=exports.SRGB8_ALPHA8_ASTC_10x6_Format=exports.SRGB8_ALPHA8_ASTC_10x5_Format=exports.SRGB8_ALPHA8_ASTC_10x10_Format=exports.RingGeometry=exports.RingBufferGeometry=exports.ReverseSubtractEquation=exports.ReplaceStencilOp=exports.RepeatWrapping=exports.ReinhardToneMapping=exports.RedIntegerFormat=exports.RedFormat=exports.RectAreaLight=exports.Ray=exports.RawShaderMaterial=exports.RGIntegerFormat=exports.RGFormat=exports.RGB_S3TC_DXT1_Format=exports.RGB_PVRTC_4BPPV1_Format=exports.RGB_PVRTC_2BPPV1_Format=exports.RGB_ETC2_Format=exports.RGB_ETC1_Format=exports.RGBM7Encoding=exports.RGBM16Encoding=exports.RGBIntegerFormat=exports.RGBFormat=exports.RGBEFormat=exports.RGBEEncoding=exports.RGBDEncoding=exports.RGBA_S3TC_DXT5_Format=exports.RGBA_S3TC_DXT3_Format=exports.RGBA_S3TC_DXT1_Format=exports.RGBA_PVRTC_4BPPV1_Format=exports.RGBA_PVRTC_2BPPV1_Format=exports.RGBA_ETC2_EAC_Format=exports.RGBA_BPTC_Format=exports.RGBA_ASTC_8x8_Format=exports.RGBA_ASTC_8x6_Format=exports.RGBA_ASTC_8x5_Format=exports.RGBA_ASTC_6x6_Format=exports.RGBA_ASTC_6x5_Format=exports.RGBA_ASTC_5x5_Format=exports.RGBA_ASTC_5x4_Format=exports.RGBA_ASTC_4x4_Format=exports.RGBA_ASTC_12x12_Format=exports.RGBA_ASTC_12x10_Format=exports.RGBA_ASTC_10x8_Format=exports.RGBA_ASTC_10x6_Format=exports.RGBA_ASTC_10x5_Format=exports.RGBA_ASTC_10x10_Format=exports.RGBAIntegerFormat=exports.RGBAFormat=exports.RGBADepthPacking=exports.REVISION=exports.QuaternionKeyframeTrack=exports.Quaternion=exports.QuadraticBezierCurve3=exports.QuadraticBezierCurve=exports.PropertyMixer=exports.PositionalAudio=exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=exports.PolarGridHelper=exports.PointsMaterial=exports.PointLightHelper=exports.PointLight=exports.PlaneHelper=exports.PlaneGeometry=exports.PlaneBufferGeometry=exports.Plane=exports.Path=exports.PMREMGenerator=exports.PCFSoftShadowMap=exports.PCFShadowMap=exports.OrthographicCamera=exports.OneMinusSrcColorFactor=exports.OneMinusSrcAlphaFactor=exports.OneMinusDstColorFactor=exports.OneMinusDstAlphaFactor=exports.OneFactor=exports.OctahedronGeometry=exports.OctahedronBufferGeometry=exports.ObjectSpaceNormalMap=void 0,exports.sRGBEncoding=exports.ZeroStencilOp=exports.ZeroSlopeEnding=exports.ZeroFactor=exports.ZeroCurvatureEnding=exports.WrapAroundEnding=exports.WireframeGeometry=exports.WebGLRenderTarget=exports.WebGLMultisampleRenderTarget=exports.WebGLCubeRenderTarget=exports.WebGL1Renderer=exports.VideoTexture=exports.VertexColors=exports.VectorKeyframeTrack=exports.Vector4=exports.Vector3=exports.Vector2=exports.VSMShadowMap=exports.UnsignedShortType=exports.UnsignedShort565Type=exports.UnsignedShort5551Type=exports.UnsignedShort4444Type=exports.UnsignedIntType=exports.UnsignedInt248Type=exports.UnsignedByteType=exports.UniformsUtils=exports.UniformsLib=exports.Uniform=exports.UVMapping=exports.TubeGeometry=exports.TubeBufferGeometry=exports.TrianglesDrawMode=exports.TriangleStripDrawMode=exports.TriangleFanDrawMode=exports.Triangle=exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=exports.TorusGeometry=exports.TorusBufferGeometry=exports.Texture=exports.TextGeometry=exports.TextBufferGeometry=exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=exports.TangentSpaceNormalMap=exports.TOUCH=exports.SubtractiveBlending=exports.SubtractEquation=exports.StringKeyframeTrack=exports.StreamReadUsage=exports.StreamDrawUsage=exports.StreamCopyUsage=exports.StereoCamera=exports.StaticReadUsage=exports.StaticDrawUsage=exports.StaticCopyUsage=exports.SrcColorFactor=exports.SrcAlphaSaturateFactor=exports.SrcAlphaFactor=exports.SpriteMaterial=exports.Sprite=exports.SpotLightHelper=exports.SpotLight=exports.SplineCurve=exports.SphericalHarmonics3=exports.Spherical=exports.SphereGeometry=exports.SphereBufferGeometry=exports.Sphere=exports.SmoothShading=exports.SkeletonHelper=exports.Skeleton=exports.ShortType=exports.ShapeUtils=exports.ShapePath=exports.ShapeGeometry=void 0;const t="126";exports.REVISION="126";const e={LEFT:0,MIDDLE:1,RIGHT:2,ROTATE:0,DOLLY:1,PAN:2};exports.MOUSE=e;const n={ROTATE:0,PAN:1,DOLLY_PAN:2,DOLLY_ROTATE:3};exports.TOUCH=n;const r=0;exports.CullFaceNone=r;const i=1;exports.CullFaceBack=i;const s=2;exports.CullFaceFront=s;const o=3;exports.CullFaceFrontBack=3;const a=0;exports.BasicShadowMap=0;const l=1;exports.PCFShadowMap=l;const c=2;exports.PCFSoftShadowMap=c;const h=3;exports.VSMShadowMap=h;const u=0;exports.FrontSide=u;const p=1;exports.BackSide=p;const d=2;exports.DoubleSide=d;const m=1;exports.FlatShading=1;const f=2;exports.SmoothShading=2;const g=0;exports.NoBlending=g;const x=1;exports.NormalBlending=x;const v=2;exports.AdditiveBlending=v;const y=3;exports.SubtractiveBlending=y;const _=4;exports.MultiplyBlending=_;const b=5;exports.CustomBlending=b;const w=100;exports.AddEquation=w;const M=101;exports.SubtractEquation=M;const S=102;exports.ReverseSubtractEquation=S;const T=103;exports.MinEquation=T;const E=104;exports.MaxEquation=E;const A=200;exports.ZeroFactor=A;const L=201;exports.OneFactor=L;const R=202;exports.SrcColorFactor=R;const C=203;exports.OneMinusSrcColorFactor=C;const P=204;exports.SrcAlphaFactor=P;const D=205;exports.OneMinusSrcAlphaFactor=D;const I=206;exports.DstAlphaFactor=I;const B=207;exports.OneMinusDstAlphaFactor=B;const N=208;exports.DstColorFactor=N;const F=209;exports.OneMinusDstColorFactor=F;const O=210;exports.SrcAlphaSaturateFactor=O;const z=0;exports.NeverDepth=z;const G=1;exports.AlwaysDepth=G;const H=2;exports.LessDepth=H;const U=3;exports.LessEqualDepth=U;const k=4;exports.EqualDepth=k;const V=5;exports.GreaterEqualDepth=V;const W=6;exports.GreaterDepth=W;const j=7;exports.NotEqualDepth=j;const q=0;exports.MultiplyOperation=q;const X=1;exports.MixOperation=X;const Y=2;exports.AddOperation=Y;const Z=0;exports.NoToneMapping=Z;const J=1;exports.LinearToneMapping=J;const Q=2;exports.ReinhardToneMapping=Q;const K=3;exports.CineonToneMapping=K;const $=4;exports.ACESFilmicToneMapping=$;const tt=5;exports.CustomToneMapping=tt;const et=300;exports.UVMapping=et;const nt=301;exports.CubeReflectionMapping=nt;const rt=302;exports.CubeRefractionMapping=rt;const it=303;exports.EquirectangularReflectionMapping=it;const st=304;exports.EquirectangularRefractionMapping=st;const ot=306;exports.CubeUVReflectionMapping=ot;const at=307;exports.CubeUVRefractionMapping=at;const lt=1e3;exports.RepeatWrapping=lt;const ct=1001;exports.ClampToEdgeWrapping=ct;const ht=1002;exports.MirroredRepeatWrapping=ht;const ut=1003;exports.NearestFilter=ut;const pt=1004;exports.NearestMipmapNearestFilter=pt;const dt=1004;exports.NearestMipMapNearestFilter=1004;const mt=1005;exports.NearestMipmapLinearFilter=mt;const ft=1005;exports.NearestMipMapLinearFilter=1005;const gt=1006;exports.LinearFilter=gt;const xt=1007;exports.LinearMipmapNearestFilter=xt;const vt=1007;exports.LinearMipMapNearestFilter=1007;const yt=1008;exports.LinearMipmapLinearFilter=yt;const _t=1008;exports.LinearMipMapLinearFilter=1008;const bt=1009;exports.UnsignedByteType=bt;const wt=1010;exports.ByteType=wt;const Mt=1011;exports.ShortType=Mt;const St=1012;exports.UnsignedShortType=St;const Tt=1013;exports.IntType=Tt;const Et=1014;exports.UnsignedIntType=Et;const At=1015;exports.FloatType=At;const Lt=1016;exports.HalfFloatType=Lt;const Rt=1017;exports.UnsignedShort4444Type=Rt;const Ct=1018;exports.UnsignedShort5551Type=Ct;const Pt=1019;exports.UnsignedShort565Type=Pt;const Dt=1020;exports.UnsignedInt248Type=Dt;const It=1021;exports.AlphaFormat=It;const Bt=1022;exports.RGBFormat=Bt;const Nt=1023;exports.RGBAFormat=Nt;const Ft=1024;exports.LuminanceFormat=Ft;const Ot=1025;exports.LuminanceAlphaFormat=Ot;const zt=Nt;exports.RGBEFormat=zt;const Gt=1026;exports.DepthFormat=Gt;const Ht=1027;exports.DepthStencilFormat=Ht;const Ut=1028;exports.RedFormat=Ut;const kt=1029;exports.RedIntegerFormat=kt;const Vt=1030;exports.RGFormat=Vt;const Wt=1031;exports.RGIntegerFormat=Wt;const jt=1032;exports.RGBIntegerFormat=jt;const qt=1033;exports.RGBAIntegerFormat=qt;const Xt=33776;exports.RGB_S3TC_DXT1_Format=Xt;const Yt=33777;exports.RGBA_S3TC_DXT1_Format=Yt;const Zt=33778;exports.RGBA_S3TC_DXT3_Format=Zt;const Jt=33779;exports.RGBA_S3TC_DXT5_Format=Jt;const Qt=35840;exports.RGB_PVRTC_4BPPV1_Format=Qt;const Kt=35841;exports.RGB_PVRTC_2BPPV1_Format=Kt;const $t=35842;exports.RGBA_PVRTC_4BPPV1_Format=$t;const te=35843;exports.RGBA_PVRTC_2BPPV1_Format=te;const ee=36196;exports.RGB_ETC1_Format=ee;const ne=37492;exports.RGB_ETC2_Format=ne;const re=37496;exports.RGBA_ETC2_EAC_Format=re;const ie=37808;exports.RGBA_ASTC_4x4_Format=ie;const se=37809;exports.RGBA_ASTC_5x4_Format=se;const oe=37810;exports.RGBA_ASTC_5x5_Format=oe;const ae=37811;exports.RGBA_ASTC_6x5_Format=ae;const le=37812;exports.RGBA_ASTC_6x6_Format=le;const ce=37813;exports.RGBA_ASTC_8x5_Format=ce;const he=37814;exports.RGBA_ASTC_8x6_Format=he;const ue=37815;exports.RGBA_ASTC_8x8_Format=ue;const pe=37816;exports.RGBA_ASTC_10x5_Format=pe;const de=37817;exports.RGBA_ASTC_10x6_Format=de;const me=37818;exports.RGBA_ASTC_10x8_Format=me;const fe=37819;exports.RGBA_ASTC_10x10_Format=fe;const ge=37820;exports.RGBA_ASTC_12x10_Format=ge;const xe=37821;exports.RGBA_ASTC_12x12_Format=xe;const ve=36492;exports.RGBA_BPTC_Format=ve;const ye=37840;exports.SRGB8_ALPHA8_ASTC_4x4_Format=ye;const _e=37841;exports.SRGB8_ALPHA8_ASTC_5x4_Format=_e;const be=37842;exports.SRGB8_ALPHA8_ASTC_5x5_Format=be;const we=37843;exports.SRGB8_ALPHA8_ASTC_6x5_Format=we;const Me=37844;exports.SRGB8_ALPHA8_ASTC_6x6_Format=Me;const Se=37845;exports.SRGB8_ALPHA8_ASTC_8x5_Format=Se;const Te=37846;exports.SRGB8_ALPHA8_ASTC_8x6_Format=Te;const Ee=37847;exports.SRGB8_ALPHA8_ASTC_8x8_Format=Ee;const Ae=37848;exports.SRGB8_ALPHA8_ASTC_10x5_Format=Ae;const Le=37849;exports.SRGB8_ALPHA8_ASTC_10x6_Format=Le;const Re=37850;exports.SRGB8_ALPHA8_ASTC_10x8_Format=Re;const Ce=37851;exports.SRGB8_ALPHA8_ASTC_10x10_Format=Ce;const Pe=37852;exports.SRGB8_ALPHA8_ASTC_12x10_Format=Pe;const De=37853;exports.SRGB8_ALPHA8_ASTC_12x12_Format=De;const Ie=2200;exports.LoopOnce=Ie;const Be=2201;exports.LoopRepeat=Be;const Ne=2202;exports.LoopPingPong=Ne;const Fe=2300;exports.InterpolateDiscrete=Fe;const Oe=2301;exports.InterpolateLinear=Oe;const ze=2302;exports.InterpolateSmooth=ze;const Ge=2400;exports.ZeroCurvatureEnding=Ge;const He=2401;exports.ZeroSlopeEnding=He;const Ue=2402;exports.WrapAroundEnding=Ue;const ke=2500;exports.NormalAnimationBlendMode=ke;const Ve=2501;exports.AdditiveAnimationBlendMode=Ve;const We=0;exports.TrianglesDrawMode=0;const je=1;exports.TriangleStripDrawMode=1;const qe=2;exports.TriangleFanDrawMode=2;const Xe=3e3;exports.LinearEncoding=Xe;const Ye=3001;exports.sRGBEncoding=Ye;const Ze=3007;exports.GammaEncoding=Ze;const Je=3002;exports.RGBEEncoding=Je;const Qe=3003;exports.LogLuvEncoding=Qe;const Ke=3004;exports.RGBM7Encoding=Ke;const $e=3005;exports.RGBM16Encoding=$e;const tn=3006;exports.RGBDEncoding=tn;const en=3200;exports.BasicDepthPacking=en;const nn=3201;exports.RGBADepthPacking=nn;const rn=0;exports.TangentSpaceNormalMap=rn;const sn=1;exports.ObjectSpaceNormalMap=sn;const on=0;exports.ZeroStencilOp=0;const an=7680;exports.KeepStencilOp=an;const ln=7681;exports.ReplaceStencilOp=7681;const cn=7682;exports.IncrementStencilOp=7682;const hn=7683;exports.DecrementStencilOp=7683;const un=34055;exports.IncrementWrapStencilOp=34055;const pn=34056;exports.DecrementWrapStencilOp=34056;const dn=5386;exports.InvertStencilOp=5386;const mn=512;exports.NeverStencilFunc=512;const fn=513;exports.LessStencilFunc=513;const gn=514;exports.EqualStencilFunc=514;const xn=515;exports.LessEqualStencilFunc=515;const vn=516;exports.GreaterStencilFunc=516;const yn=517;exports.NotEqualStencilFunc=517;const _n=518;exports.GreaterEqualStencilFunc=518;const bn=519;exports.AlwaysStencilFunc=bn;const wn=35044;exports.StaticDrawUsage=wn;const Mn=35048;exports.DynamicDrawUsage=Mn;const Sn=35040;exports.StreamDrawUsage=35040;const Tn=35045;exports.StaticReadUsage=35045;const En=35049;exports.DynamicReadUsage=35049;const An=35041;exports.StreamReadUsage=35041;const Ln=35046;exports.StaticCopyUsage=35046;const Rn=35050;exports.DynamicCopyUsage=35050;const Cn=35042;exports.StreamCopyUsage=35042;const Pn="100";exports.GLSL1="100";const Dn="300 es";function In(){}exports.GLSL3=Dn,Object.assign(In.prototype,{addEventListener:function(t,e){void 0===this._listeners&&(this._listeners={});const n=this._listeners;void 0===n[t]&&(n[t]=[]),-1===n[t].indexOf(e)&&n[t].push(e)},hasEventListener:function(t,e){if(void 0===this._listeners)return!1;const n=this._listeners;return void 0!==n[t]&&-1!==n[t].indexOf(e)},removeEventListener:function(t,e){if(void 0===this._listeners)return;const n=this._listeners[t];if(void 0!==n){const t=n.indexOf(e);-1!==t&&n.splice(t,1)}},dispatchEvent:function(t){if(void 0===this._listeners)return;const e=this._listeners[t.type];if(void 0!==e){t.target=this;const n=e.slice(0);for(let e=0,r=n.length;e<r;e++)n[e].call(this,t)}}});const Bn=[];for(let yx=0;yx<256;yx++)Bn[yx]=(yx<16?"0":"")+yx.toString(16);let Nn=1234567;const Fn={DEG2RAD:Math.PI/180,RAD2DEG:180/Math.PI,generateUUID:function(){const t=4294967295*Math.random()|0,e=4294967295*Math.random()|0,n=4294967295*Math.random()|0,r=4294967295*Math.random()|0;return(Bn[255&t]+Bn[t>>8&255]+Bn[t>>16&255]+Bn[t>>24&255]+"-"+Bn[255&e]+Bn[e>>8&255]+"-"+Bn[e>>16&15|64]+Bn[e>>24&255]+"-"+Bn[63&n|128]+Bn[n>>8&255]+"-"+Bn[n>>16&255]+Bn[n>>24&255]+Bn[255&r]+Bn[r>>8&255]+Bn[r>>16&255]+Bn[r>>24&255]).toUpperCase()},clamp:function(t,e,n){return Math.max(e,Math.min(n,t))},euclideanModulo:function(t,e){return(t%e+e)%e},mapLinear:function(t,e,n,r,i){return r+(t-e)*(i-r)/(n-e)},lerp:function(t,e,n){return(1-n)*t+n*e},damp:function(t,e,n,r){return Fn.lerp(t,e,1-Math.exp(-n*r))},pingpong:function(t,e=1){return e-Math.abs(Fn.euclideanModulo(t,2*e)-e)},smoothstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*(3-2*t)},smootherstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*t*(t*(6*t-15)+10)},randInt:function(t,e){return t+Math.floor(Math.random()*(e-t+1))},randFloat:function(t,e){return t+Math.random()*(e-t)},randFloatSpread:function(t){return t*(.5-Math.random())},seededRandom:function(t){return void 0!==t&&(Nn=t%2147483647),((Nn=16807*Nn%2147483647)-1)/2147483646},degToRad:function(t){return t*Fn.DEG2RAD},radToDeg:function(t){return t*Fn.RAD2DEG},isPowerOfTwo:function(t){return 0==(t&t-1)&&0!==t},ceilPowerOfTwo:function(t){return Math.pow(2,Math.ceil(Math.log(t)/Math.LN2))},floorPowerOfTwo:function(t){return Math.pow(2,Math.floor(Math.log(t)/Math.LN2))},setQuaternionFromProperEuler:function(t,e,n,r,i){const s=Math.cos,o=Math.sin,a=s(n/2),l=o(n/2),c=s((e+r)/2),h=o((e+r)/2),u=s((e-r)/2),p=o((e-r)/2),d=s((r-e)/2),m=o((r-e)/2);switch(i){case"XYX":t.set(a*h,l*u,l*p,a*c);break;case"YZY":t.set(l*p,a*h,l*u,a*c);break;case"ZXZ":t.set(l*u,l*p,a*h,a*c);break;case"XZX":t.set(a*h,l*m,l*d,a*c);break;case"YXY":t.set(l*d,a*h,l*m,a*c);break;case"ZYZ":t.set(l*m,l*d,a*h,a*c);break;default:console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+i)}}};exports.MathUtils=exports.Math=Fn;class On{constructor(t=0,e=0){this.x=t,this.y=e}get width(){return this.x}set width(t){this.x=t}get height(){return this.y}set height(t){this.y=t}set(t,e){return this.x=t,this.y=e,this}setScalar(t){return this.x=t,this.y=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y)}copy(t){return this.x=t.x,this.y=t.y,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this)}addScalar(t){return this.x+=t,this.y+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this)}subScalar(t){return this.x-=t,this.y-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this}multiply(t){return this.x*=t.x,this.y*=t.y,this}multiplyScalar(t){return this.x*=t,this.y*=t,this}divide(t){return this.x/=t.x,this.y/=t.y,this}divideScalar(t){return this.multiplyScalar(1/t)}applyMatrix3(t){const e=this.x,n=this.y,r=t.elements;return this.x=r[0]*e+r[3]*n+r[6],this.y=r[1]*e+r[4]*n+r[7],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this}negate(){return this.x=-this.x,this.y=-this.y,this}dot(t){return this.x*t.x+this.y*t.y}cross(t){return this.x*t.y-this.y*t.x}lengthSq(){return this.x*this.x+this.y*this.y}length(){return Math.sqrt(this.x*this.x+this.y*this.y)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)}normalize(){return this.divideScalar(this.length()||1)}angle(){return Math.atan2(-this.y,-this.x)+Math.PI}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y;return e*e+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this}equals(t){return t.x===this.x&&t.y===this.y}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this}rotateAround(t,e){const n=Math.cos(e),r=Math.sin(e),i=this.x-t.x,s=this.y-t.y;return this.x=i*n-s*r+t.x,this.y=i*r+s*n+t.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}}exports.Vector2=On,On.prototype.isVector2=!0;class zn{constructor(){this.elements=[1,0,0,0,1,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l){const c=this.elements;return c[0]=t,c[1]=r,c[2]=o,c[3]=e,c[4]=i,c[5]=a,c[6]=n,c[7]=s,c[8]=l,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],this}extractBasis(t,e,n){return t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(t){const e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[3],a=n[6],l=n[1],c=n[4],h=n[7],u=n[2],p=n[5],d=n[8],m=r[0],f=r[3],g=r[6],x=r[1],v=r[4],y=r[7],_=r[2],b=r[5],w=r[8];return i[0]=s*m+o*x+a*_,i[3]=s*f+o*v+a*b,i[6]=s*g+o*y+a*w,i[1]=l*m+c*x+h*_,i[4]=l*f+c*v+h*b,i[7]=l*g+c*y+h*w,i[2]=u*m+p*x+d*_,i[5]=u*f+p*v+d*b,i[8]=u*g+p*y+d*w,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8];return e*s*c-e*o*l-n*i*c+n*o*a+r*i*l-r*s*a}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=c*s-o*l,u=o*a-c*i,p=l*i-s*a,d=e*h+n*u+r*p;if(0===d)return this.set(0,0,0,0,0,0,0,0,0);const m=1/d;return t[0]=h*m,t[1]=(r*l-c*n)*m,t[2]=(o*n-r*s)*m,t[3]=u*m,t[4]=(c*e-r*a)*m,t[5]=(r*i-o*e)*m,t[6]=p*m,t[7]=(n*a-l*e)*m,t[8]=(s*e-n*i)*m,this}transpose(){let t;const e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){const e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,n,r,i,s,o){const a=Math.cos(i),l=Math.sin(i);return this.set(n*a,n*l,-n*(a*s+l*o)+s+t,-r*l,r*a,-r*(-l*s+a*o)+o+e,0,0,1),this}scale(t,e){const n=this.elements;return n[0]*=t,n[3]*=t,n[6]*=t,n[1]*=e,n[4]*=e,n[7]*=e,this}rotate(t){const e=Math.cos(t),n=Math.sin(t),r=this.elements,i=r[0],s=r[3],o=r[6],a=r[1],l=r[4],c=r[7];return r[0]=e*i+n*a,r[3]=e*s+n*l,r[6]=e*o+n*c,r[1]=-n*i+e*a,r[4]=-n*s+e*l,r[7]=-n*o+e*c,this}translate(t,e){const n=this.elements;return n[0]+=t*n[2],n[3]+=t*n[5],n[6]+=t*n[8],n[1]+=e*n[2],n[4]+=e*n[5],n[7]+=e*n[8],this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<9;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<9;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t}clone(){return(new this.constructor).fromArray(this.elements)}}let Gn;exports.Matrix3=zn,zn.prototype.isMatrix3=!0;const Hn={getDataURL:function(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===Gn&&(Gn=document.createElementNS("http://www.w3.org/1999/xhtml","canvas")),Gn.width=t.width,Gn.height=t.height;const n=Gn.getContext("2d");t instanceof ImageData?n.putImageData(t,0,0):n.drawImage(t,0,0,t.width,t.height),e=Gn}return e.width>2048||e.height>2048?e.toDataURL("image/jpeg",.6):e.toDataURL("image/png")}};exports.ImageUtils=Hn;let Un=0;class kn extends In{constructor(t=kn.DEFAULT_IMAGE,e=kn.DEFAULT_MAPPING,n=ct,r=ct,i=gt,s=yt,o=Nt,a=bt,l=1,c=Xe){super(),Object.defineProperty(this,"id",{value:Un++}),this.uuid=Fn.generateUUID(),this.name="",this.image=t,this.mipmaps=[],this.mapping=e,this.wrapS=n,this.wrapT=r,this.magFilter=i,this.minFilter=s,this.anisotropy=l,this.format=o,this.internalFormat=null,this.type=a,this.offset=new On(0,0),this.repeat=new On(1,1),this.center=new On(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new zn,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.encoding=c,this.version=0,this.onUpdate=null}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.image=t.image,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.encoding=t.encoding,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const n={metadata:{version:4.5,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,type:this.type,encoding:this.encoding,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(void 0!==this.image){const r=this.image;if(void 0===r.uuid&&(r.uuid=Fn.generateUUID()),!e&&void 0===t.images[r.uuid]){let e;if(Array.isArray(r)){e=[];for(let t=0,n=r.length;t<n;t++)r[t].isDataTexture?e.push(Vn(r[t].image)):e.push(Vn(r[t]))}else e=Vn(r);t.images[r.uuid]={uuid:r.uuid,url:e}}n.image=r.uuid}return e||(t.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==et)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case lt:t.x=t.x-Math.floor(t.x);break;case ct:t.x=t.x<0?0:1;break;case ht:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case lt:t.y=t.y-Math.floor(t.y);break;case ct:t.y=t.y<0?0:1;break;case ht:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&this.version++}}function Vn(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?Hn.getDataURL(t):t.data?{data:Array.prototype.slice.call(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}exports.Texture=kn,kn.DEFAULT_IMAGE=void 0,kn.DEFAULT_MAPPING=et,kn.prototype.isTexture=!0;class Wn{constructor(t=0,e=0,n=0,r=1){this.x=t,this.y=e,this.z=n,this.w=r}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,n,r){return this.x=t,this.y=e,this.z=n,this.w=r,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=this.w,s=t.elements;return this.x=s[0]*e+s[4]*n+s[8]*r+s[12]*i,this.y=s[1]*e+s[5]*n+s[9]*r+s[13]*i,this.z=s[2]*e+s[6]*n+s[10]*r+s[14]*i,this.w=s[3]*e+s[7]*n+s[11]*r+s[15]*i,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,n,r,i;const s=t.elements,o=s[0],a=s[4],l=s[8],c=s[1],h=s[5],u=s[9],p=s[2],d=s[6],m=s[10];if(Math.abs(a-c)<.01&&Math.abs(l-p)<.01&&Math.abs(u-d)<.01){if(Math.abs(a+c)<.1&&Math.abs(l+p)<.1&&Math.abs(u+d)<.1&&Math.abs(o+h+m-3)<.1)return this.set(1,0,0,0),this;e=Math.PI;const t=(o+1)/2,s=(h+1)/2,f=(m+1)/2,g=(a+c)/4,x=(l+p)/4,v=(u+d)/4;return t>s&&t>f?t<.01?(n=0,r=.707106781,i=.707106781):(r=g/(n=Math.sqrt(t)),i=x/n):s>f?s<.01?(n=.707106781,r=0,i=.707106781):(n=g/(r=Math.sqrt(s)),i=v/r):f<.01?(n=.707106781,r=.707106781,i=0):(n=x/(i=Math.sqrt(f)),r=v/i),this.set(n,r,i,e),this}let f=Math.sqrt((d-u)*(d-u)+(l-p)*(l-p)+(c-a)*(c-a));return Math.abs(f)<.001&&(f=1),this.x=(d-u)/f,this.y=(l-p)/f,this.z=(c-a)/f,this.w=Math.acos((o+h+m-1)/2),this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this.w=Math.max(t.w,Math.min(e.w,this.w)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this.w=Math.max(t,Math.min(e,this.w)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this.w=this.w<0?Math.ceil(this.w):Math.floor(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this.w=t.w+(e.w-t.w)*n,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}}exports.Vector4=Wn,Wn.prototype.isVector4=!0;class jn extends In{constructor(t,e,n){super(),this.width=t,this.height=e,this.depth=1,this.scissor=new Wn(0,0,t,e),this.scissorTest=!1,this.viewport=new Wn(0,0,t,e),n=n||{},this.texture=new kn(void 0,n.mapping,n.wrapS,n.wrapT,n.magFilter,n.minFilter,n.format,n.type,n.anisotropy,n.encoding),this.texture.image={},this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=1,this.texture.generateMipmaps=void 0!==n.generateMipmaps&&n.generateMipmaps,this.texture.minFilter=void 0!==n.minFilter?n.minFilter:gt,this.depthBuffer=void 0===n.depthBuffer||n.depthBuffer,this.stencilBuffer=void 0!==n.stencilBuffer&&n.stencilBuffer,this.depthTexture=void 0!==n.depthTexture?n.depthTexture:null}setTexture(t){t.image={width:this.width,height:this.height,depth:this.depth},this.texture=t}setSize(t,e,n=1){this.width===t&&this.height===e&&this.depth===n||(this.width=t,this.height=e,this.depth=n,this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=n,this.dispose()),this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.width=t.width,this.height=t.height,this.depth=t.depth,this.viewport.copy(t.viewport),this.texture=t.texture.clone(),this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.depthTexture=t.depthTexture,this}dispose(){this.dispatchEvent({type:"dispose"})}}exports.WebGLRenderTarget=jn,jn.prototype.isWebGLRenderTarget=!0;class qn extends jn{constructor(t,e,n){super(t,e,n),this.samples=4}copy(t){return super.copy.call(this,t),this.samples=t.samples,this}}exports.WebGLMultisampleRenderTarget=qn,qn.prototype.isWebGLMultisampleRenderTarget=!0;class Xn{constructor(t=0,e=0,n=0,r=1){this._x=t,this._y=e,this._z=n,this._w=r}static slerp(t,e,n,r){return n.copy(t).slerp(e,r)}static slerpFlat(t,e,n,r,i,s,o){let a=n[r+0],l=n[r+1],c=n[r+2],h=n[r+3];const u=i[s+0],p=i[s+1],d=i[s+2],m=i[s+3];if(0===o)return t[e+0]=a,t[e+1]=l,t[e+2]=c,void(t[e+3]=h);if(1===o)return t[e+0]=u,t[e+1]=p,t[e+2]=d,void(t[e+3]=m);if(h!==m||a!==u||l!==p||c!==d){let t=1-o;const e=a*u+l*p+c*d+h*m,n=e>=0?1:-1,r=1-e*e;if(r>Number.EPSILON){const i=Math.sqrt(r),s=Math.atan2(i,e*n);t=Math.sin(t*s)/i,o=Math.sin(o*s)/i}const i=o*n;if(a=a*t+u*i,l=l*t+p*i,c=c*t+d*i,h=h*t+m*i,t===1-o){const t=1/Math.sqrt(a*a+l*l+c*c+h*h);a*=t,l*=t,c*=t,h*=t}}t[e]=a,t[e+1]=l,t[e+2]=c,t[e+3]=h}static multiplyQuaternionsFlat(t,e,n,r,i,s){const o=n[r],a=n[r+1],l=n[r+2],c=n[r+3],h=i[s],u=i[s+1],p=i[s+2],d=i[s+3];return t[e]=o*d+c*h+a*p-l*u,t[e+1]=a*d+c*u+l*h-o*p,t[e+2]=l*d+c*p+o*u-a*h,t[e+3]=c*d-o*h-a*u-l*p,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._w=r,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e){if(!t||!t.isEuler)throw new Error("THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.");const n=t._x,r=t._y,i=t._z,s=t._order,o=Math.cos,a=Math.sin,l=o(n/2),c=o(r/2),h=o(i/2),u=a(n/2),p=a(r/2),d=a(i/2);switch(s){case"XYZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"YXZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"ZXY":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"ZYX":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"YZX":this._x=u*c*h+l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h-u*p*d;break;case"XZY":this._x=u*c*h-l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h+u*p*d;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)}return!1!==e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const n=e/2,r=Math.sin(n);return this._x=t.x*r,this._y=t.y*r,this._z=t.z*r,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,n=e[0],r=e[4],i=e[8],s=e[1],o=e[5],a=e[9],l=e[2],c=e[6],h=e[10],u=n+o+h;if(u>0){const t=.5/Math.sqrt(u+1);this._w=.25/t,this._x=(c-a)*t,this._y=(i-l)*t,this._z=(s-r)*t}else if(n>o&&n>h){const t=2*Math.sqrt(1+n-o-h);this._w=(c-a)/t,this._x=.25*t,this._y=(r+s)/t,this._z=(i+l)/t}else if(o>h){const t=2*Math.sqrt(1+o-n-h);this._w=(i-l)/t,this._x=(r+s)/t,this._y=.25*t,this._z=(a+c)/t}else{const t=2*Math.sqrt(1+h-n-o);this._w=(s-r)/t,this._x=(i+l)/t,this._y=(a+c)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let n=t.dot(e)+1;return n<1e-6?(n=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=n):(this._x=0,this._y=-t.z,this._z=t.y,this._w=n)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=n),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(Fn.clamp(this.dot(t),-1,1)))}rotateTowards(t,e){const n=this.angleTo(t);if(0===n)return this;const r=Math.min(1,e/n);return this.slerp(t,r),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t,e){return void 0!==e?(console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead."),this.multiplyQuaternions(t,e)):this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const n=t._x,r=t._y,i=t._z,s=t._w,o=e._x,a=e._y,l=e._z,c=e._w;return this._x=n*c+s*o+r*l-i*a,this._y=r*c+s*a+i*o-n*l,this._z=i*c+s*l+n*a-r*o,this._w=s*c-n*o-r*a-i*l,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const n=this._x,r=this._y,i=this._z,s=this._w;let o=s*t._w+n*t._x+r*t._y+i*t._z;if(o<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,o=-o):this.copy(t),o>=1)return this._w=s,this._x=n,this._y=r,this._z=i,this;const a=1-o*o;if(a<=Number.EPSILON){const t=1-e;return this._w=t*s+e*this._w,this._x=t*n+e*this._x,this._y=t*r+e*this._y,this._z=t*i+e*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(a),c=Math.atan2(l,o),h=Math.sin((1-e)*c)/l,u=Math.sin(e*c)/l;return this._w=s*h+this._w*u,this._x=n*h+this._x*u,this._y=r*h+this._y*u,this._z=i*h+this._z*u,this._onChangeCallback(),this}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Quaternion=Xn,Xn.prototype.isQuaternion=!0;class Yn{constructor(t=0,e=0,n=0){this.x=t,this.y=e,this.z=n}set(t,e,n){return void 0===n&&(n=this.z),this.x=t,this.y=e,this.z=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(t,e)):(this.x*=t.x,this.y*=t.y,this.z*=t.z,this)}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return t&&t.isEuler||console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order."),this.applyQuaternion(Jn.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(Jn.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[3]*n+i[6]*r,this.y=i[1]*e+i[4]*n+i[7]*r,this.z=i[2]*e+i[5]*n+i[8]*r,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=t.elements,s=1/(i[3]*e+i[7]*n+i[11]*r+i[15]);return this.x=(i[0]*e+i[4]*n+i[8]*r+i[12])*s,this.y=(i[1]*e+i[5]*n+i[9]*r+i[13])*s,this.z=(i[2]*e+i[6]*n+i[10]*r+i[14])*s,this}applyQuaternion(t){const e=this.x,n=this.y,r=this.z,i=t.x,s=t.y,o=t.z,a=t.w,l=a*e+s*r-o*n,c=a*n+o*e-i*r,h=a*r+i*n-s*e,u=-i*e-s*n-o*r;return this.x=l*a+u*-i+c*-o-h*-s,this.y=c*a+u*-s+h*-i-l*-o,this.z=h*a+u*-o+l*-s-c*-i,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[4]*n+i[8]*r,this.y=i[1]*e+i[5]*n+i[9]*r,this.z=i[2]*e+i[6]*n+i[10]*r,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this}cross(t,e){return void 0!==e?(console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(t,e)):this.crossVectors(this,t)}crossVectors(t,e){const n=t.x,r=t.y,i=t.z,s=e.x,o=e.y,a=e.z;return this.x=r*a-i*o,this.y=i*s-n*a,this.z=n*o-r*s,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const n=t.dot(this)/e;return this.copy(t).multiplyScalar(n)}projectOnPlane(t){return Zn.copy(this).projectOnVector(t),this.sub(Zn)}reflect(t){return this.sub(Zn.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const n=this.dot(t)/e;return Math.acos(Fn.clamp(n,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y,r=this.z-t.z;return e*e+n*n+r*r}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,n){const r=Math.sin(e)*t;return this.x=r*Math.sin(n),this.y=Math.cos(e)*t,this.z=r*Math.cos(n),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,n){return this.x=t*Math.sin(e),this.y=n,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),n=this.setFromMatrixColumn(t,1).length(),r=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=n,this.z=r,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}}exports.Vector3=Yn,Yn.prototype.isVector3=!0;const Zn=new Yn,Jn=new Xn;class Qn{constructor(t=new Yn(1/0,1/0,1/0),e=new Yn(-1/0,-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.length;a<l;a+=3){const l=t[a],c=t[a+1],h=t[a+2];l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromBufferAttribute(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.count;a<l;a++){const l=t.getX(a),c=t.getY(a),h=t.getZ(a);l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=$n.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}setFromObject(t){return this.makeEmpty(),this.expandByObject(t)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return void 0===t&&(console.warn("THREE.Box3: .getCenter() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box3: .getSize() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t){t.updateWorldMatrix(!1,!1);const e=t.geometry;void 0!==e&&(null===e.boundingBox&&e.computeBoundingBox(),tr.copy(e.boundingBox),tr.applyMatrix4(t.matrixWorld),this.union(tr));const n=t.children;for(let r=0,i=n.length;r<i;r++)this.expandByObject(n[r]);return this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y||t.z<this.min.z||t.z>this.max.z)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box3: .getParameter() target is now required"),e=new Yn),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y||t.max.z<this.min.z||t.min.z>this.max.z)}intersectsSphere(t){return this.clampPoint(t.center,$n),$n.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,n;return t.normal.x>0?(e=t.normal.x*this.min.x,n=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,n=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,n+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,n+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,n+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,n+=t.normal.z*this.min.z),e<=-t.constant&&n>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(ar),lr.subVectors(this.max,ar),er.subVectors(t.a,ar),nr.subVectors(t.b,ar),rr.subVectors(t.c,ar),ir.subVectors(nr,er),sr.subVectors(rr,nr),or.subVectors(er,rr);let e=[0,-ir.z,ir.y,0,-sr.z,sr.y,0,-or.z,or.y,ir.z,0,-ir.x,sr.z,0,-sr.x,or.z,0,-or.x,-ir.y,ir.x,0,-sr.y,sr.x,0,-or.y,or.x,0];return!!ur(e,er,nr,rr,lr)&&(!!ur(e=[1,0,0,0,1,0,0,0,1],er,nr,rr,lr)&&(cr.crossVectors(ir,sr),ur(e=[cr.x,cr.y,cr.z],er,nr,rr,lr)))}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box3: .clampPoint() target is now required"),e=new Yn),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return $n.copy(t).clamp(this.min,this.max).sub(t).length()}getBoundingSphere(t){return void 0===t&&console.error("THREE.Box3: .getBoundingSphere() target is now required"),this.getCenter(t.center),t.radius=.5*this.getSize($n).length(),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()?this:(Kn[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),Kn[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),Kn[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),Kn[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),Kn[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),Kn[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),Kn[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),Kn[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(Kn),this)}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box3=Qn,Qn.prototype.isBox3=!0;const Kn=[new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn],$n=new Yn,tr=new Qn,er=new Yn,nr=new Yn,rr=new Yn,ir=new Yn,sr=new Yn,or=new Yn,ar=new Yn,lr=new Yn,cr=new Yn,hr=new Yn;function ur(t,e,n,r,i){for(let s=0,o=t.length-3;s<=o;s+=3){hr.fromArray(t,s);const o=i.x*Math.abs(hr.x)+i.y*Math.abs(hr.y)+i.z*Math.abs(hr.z),a=e.dot(hr),l=n.dot(hr),c=r.dot(hr);if(Math.max(-Math.max(a,l,c),Math.min(a,l,c))>o)return!1}return!0}const pr=new Qn;class dr{constructor(t=new Yn,e=-1){this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const n=this.center;void 0!==e?n.copy(e):pr.setFromPoints(t).getCenter(n);let r=0;for(let i=0,s=t.length;i<s;i++)r=Math.max(r,n.distanceToSquared(t[i]));return this.radius=Math.sqrt(r),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const n=this.center.distanceToSquared(t);return void 0===e&&(console.warn("THREE.Sphere: .clampPoint() target is now required"),e=new Yn),e.copy(t),n>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return void 0===t&&(console.warn("THREE.Sphere: .getBoundingBox() target is now required"),t=new Qn),this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}exports.Sphere=dr;const mr=new Yn,fr=new Yn,gr=new Yn,xr=new Yn,vr=new Yn,yr=new Yn,_r=new Yn;class br{constructor(t=new Yn,e=new Yn(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return void 0===e&&(console.warn("THREE.Ray: .at() target is now required"),e=new Yn),e.copy(this.direction).multiplyScalar(t).add(this.origin)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,mr)),this}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Ray: .closestPointToPoint() target is now required"),e=new Yn),e.subVectors(t,this.origin);const n=e.dot(this.direction);return n<0?e.copy(this.origin):e.copy(this.direction).multiplyScalar(n).add(this.origin)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=mr.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(mr.copy(this.direction).multiplyScalar(e).add(this.origin),mr.distanceToSquared(t))}distanceSqToSegment(t,e,n,r){fr.copy(t).add(e).multiplyScalar(.5),gr.copy(e).sub(t).normalize(),xr.copy(this.origin).sub(fr);const i=.5*t.distanceTo(e),s=-this.direction.dot(gr),o=xr.dot(this.direction),a=-xr.dot(gr),l=xr.lengthSq(),c=Math.abs(1-s*s);let h,u,p,d;if(c>0)if(u=s*o-a,d=i*c,(h=s*a-o)>=0)if(u>=-d)if(u<=d){const t=1/c;p=(h*=t)*(h+s*(u*=t)+2*o)+u*(s*h+u+2*a)+l}else u=i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u=-i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u<=-d?p=-(h=Math.max(0,-(-s*i+o)))*h+(u=h>0?-i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l:u<=d?(h=0,p=(u=Math.min(Math.max(-i,-a),i))*(u+2*a)+l):p=-(h=Math.max(0,-(s*i+o)))*h+(u=h>0?i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l;else u=s>0?-i:i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;return n&&n.copy(this.direction).multiplyScalar(h).add(this.origin),r&&r.copy(gr).multiplyScalar(u).add(fr),p}intersectSphere(t,e){mr.subVectors(t.center,this.origin);const n=mr.dot(this.direction),r=mr.dot(mr)-n*n,i=t.radius*t.radius;if(r>i)return null;const s=Math.sqrt(i-r),o=n-s,a=n+s;return o<0&&a<0?null:o<0?this.at(a,e):this.at(o,e)}intersectsSphere(t){return this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){const e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(t.normal)+t.constant)/e;return n>=0?n:null}intersectPlane(t,e){const n=this.distanceToPlane(t);return null===n?null:this.at(n,e)}intersectsPlane(t){const e=t.distanceToPoint(this.origin);return 0===e||t.normal.dot(this.direction)*e<0}intersectBox(t,e){let n,r,i,s,o,a;const l=1/this.direction.x,c=1/this.direction.y,h=1/this.direction.z,u=this.origin;return l>=0?(n=(t.min.x-u.x)*l,r=(t.max.x-u.x)*l):(n=(t.max.x-u.x)*l,r=(t.min.x-u.x)*l),c>=0?(i=(t.min.y-u.y)*c,s=(t.max.y-u.y)*c):(i=(t.max.y-u.y)*c,s=(t.min.y-u.y)*c),n>s||i>r?null:((i>n||n!=n)&&(n=i),(s<r||r!=r)&&(r=s),h>=0?(o=(t.min.z-u.z)*h,a=(t.max.z-u.z)*h):(o=(t.max.z-u.z)*h,a=(t.min.z-u.z)*h),n>a||o>r?null:((o>n||n!=n)&&(n=o),(a<r||r!=r)&&(r=a),r<0?null:this.at(n>=0?n:r,e)))}intersectsBox(t){return null!==this.intersectBox(t,mr)}intersectTriangle(t,e,n,r,i){vr.subVectors(e,t),yr.subVectors(n,t),_r.crossVectors(vr,yr);let s,o=this.direction.dot(_r);if(o>0){if(r)return null;s=1}else{if(!(o<0))return null;s=-1,o=-o}xr.subVectors(this.origin,t);const a=s*this.direction.dot(yr.crossVectors(xr,yr));if(a<0)return null;const l=s*this.direction.dot(vr.cross(xr));if(l<0)return null;if(a+l>o)return null;const c=-s*xr.dot(_r);return c<0?null:this.at(c/o,i)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}exports.Ray=br;class wr{constructor(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l,c,h,u,p,d,m,f){const g=this.elements;return g[0]=t,g[4]=e,g[8]=n,g[12]=r,g[1]=i,g[5]=s,g[9]=o,g[13]=a,g[2]=l,g[6]=c,g[10]=h,g[14]=u,g[3]=p,g[7]=d,g[11]=m,g[15]=f,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new wr).fromArray(this.elements)}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],e[9]=n[9],e[10]=n[10],e[11]=n[11],e[12]=n[12],e[13]=n[13],e[14]=n[14],e[15]=n[15],this}copyPosition(t){const e=this.elements,n=t.elements;return e[12]=n[12],e[13]=n[13],e[14]=n[14],this}setFromMatrix3(t){const e=t.elements;return this.set(e[0],e[3],e[6],0,e[1],e[4],e[7],0,e[2],e[5],e[8],0,0,0,0,1),this}extractBasis(t,e,n){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(t,e,n){return this.set(t.x,e.x,n.x,0,t.y,e.y,n.y,0,t.z,e.z,n.z,0,0,0,0,1),this}extractRotation(t){const e=this.elements,n=t.elements,r=1/Mr.setFromMatrixColumn(t,0).length(),i=1/Mr.setFromMatrixColumn(t,1).length(),s=1/Mr.setFromMatrixColumn(t,2).length();return e[0]=n[0]*r,e[1]=n[1]*r,e[2]=n[2]*r,e[3]=0,e[4]=n[4]*i,e[5]=n[5]*i,e[6]=n[6]*i,e[7]=0,e[8]=n[8]*s,e[9]=n[9]*s,e[10]=n[10]*s,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromEuler(t){t&&t.isEuler||console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.");const e=this.elements,n=t.x,r=t.y,i=t.z,s=Math.cos(n),o=Math.sin(n),a=Math.cos(r),l=Math.sin(r),c=Math.cos(i),h=Math.sin(i);if("XYZ"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=-a*h,e[8]=l,e[1]=n+r*l,e[5]=t-i*l,e[9]=-o*a,e[2]=i-t*l,e[6]=r+n*l,e[10]=s*a}else if("YXZ"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t+i*o,e[4]=r*o-n,e[8]=s*l,e[1]=s*h,e[5]=s*c,e[9]=-o,e[2]=n*o-r,e[6]=i+t*o,e[10]=s*a}else if("ZXY"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t-i*o,e[4]=-s*h,e[8]=r+n*o,e[1]=n+r*o,e[5]=s*c,e[9]=i-t*o,e[2]=-s*l,e[6]=o,e[10]=s*a}else if("ZYX"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=r*l-n,e[8]=t*l+i,e[1]=a*h,e[5]=i*l+t,e[9]=n*l-r,e[2]=-l,e[6]=o*a,e[10]=s*a}else if("YZX"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=i-t*h,e[8]=r*h+n,e[1]=h,e[5]=s*c,e[9]=-o*c,e[2]=-l*c,e[6]=n*h+r,e[10]=t-i*h}else if("XZY"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=-h,e[8]=l*c,e[1]=t*h+i,e[5]=s*c,e[9]=n*h-r,e[2]=r*h-n,e[6]=o*c,e[10]=i*h+t}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromQuaternion(t){return this.compose(Tr,t,Er)}lookAt(t,e,n){const r=this.elements;return Rr.subVectors(t,e),0===Rr.lengthSq()&&(Rr.z=1),Rr.normalize(),Ar.crossVectors(n,Rr),0===Ar.lengthSq()&&(1===Math.abs(n.z)?Rr.x+=1e-4:Rr.z+=1e-4,Rr.normalize(),Ar.crossVectors(n,Rr)),Ar.normalize(),Lr.crossVectors(Rr,Ar),r[0]=Ar.x,r[4]=Lr.x,r[8]=Rr.x,r[1]=Ar.y,r[5]=Lr.y,r[9]=Rr.y,r[2]=Ar.z,r[6]=Lr.z,r[10]=Rr.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(t,e)):this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[4],a=n[8],l=n[12],c=n[1],h=n[5],u=n[9],p=n[13],d=n[2],m=n[6],f=n[10],g=n[14],x=n[3],v=n[7],y=n[11],_=n[15],b=r[0],w=r[4],M=r[8],S=r[12],T=r[1],E=r[5],A=r[9],L=r[13],R=r[2],C=r[6],P=r[10],D=r[14],I=r[3],B=r[7],N=r[11],F=r[15];return i[0]=s*b+o*T+a*R+l*I,i[4]=s*w+o*E+a*C+l*B,i[8]=s*M+o*A+a*P+l*N,i[12]=s*S+o*L+a*D+l*F,i[1]=c*b+h*T+u*R+p*I,i[5]=c*w+h*E+u*C+p*B,i[9]=c*M+h*A+u*P+p*N,i[13]=c*S+h*L+u*D+p*F,i[2]=d*b+m*T+f*R+g*I,i[6]=d*w+m*E+f*C+g*B,i[10]=d*M+m*A+f*P+g*N,i[14]=d*S+m*L+f*D+g*F,i[3]=x*b+v*T+y*R+_*I,i[7]=x*w+v*E+y*C+_*B,i[11]=x*M+v*A+y*P+_*N,i[15]=x*S+v*L+y*D+_*F,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[4],r=t[8],i=t[12],s=t[1],o=t[5],a=t[9],l=t[13],c=t[2],h=t[6],u=t[10],p=t[14];return t[3]*(+i*a*h-r*l*h-i*o*u+n*l*u+r*o*p-n*a*p)+t[7]*(+e*a*p-e*l*u+i*s*u-r*s*p+r*l*c-i*a*c)+t[11]*(+e*l*h-e*o*p-i*s*h+n*s*p+i*o*c-n*l*c)+t[15]*(-r*o*c-e*a*h+e*o*u+r*s*h-n*s*u+n*a*c)}transpose(){const t=this.elements;let e;return e=t[1],t[1]=t[4],t[4]=e,e=t[2],t[2]=t[8],t[8]=e,e=t[6],t[6]=t[9],t[9]=e,e=t[3],t[3]=t[12],t[12]=e,e=t[7],t[7]=t[13],t[13]=e,e=t[11],t[11]=t[14],t[14]=e,this}setPosition(t,e,n){const r=this.elements;return t.isVector3?(r[12]=t.x,r[13]=t.y,r[14]=t.z):(r[12]=t,r[13]=e,r[14]=n),this}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=t[9],u=t[10],p=t[11],d=t[12],m=t[13],f=t[14],g=t[15],x=h*f*l-m*u*l+m*a*p-o*f*p-h*a*g+o*u*g,v=d*u*l-c*f*l-d*a*p+s*f*p+c*a*g-s*u*g,y=c*m*l-d*h*l+d*o*p-s*m*p-c*o*g+s*h*g,_=d*h*a-c*m*a-d*o*u+s*m*u+c*o*f-s*h*f,b=e*x+n*v+r*y+i*_;if(0===b)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const w=1/b;return t[0]=x*w,t[1]=(m*u*i-h*f*i-m*r*p+n*f*p+h*r*g-n*u*g)*w,t[2]=(o*f*i-m*a*i+m*r*l-n*f*l-o*r*g+n*a*g)*w,t[3]=(h*a*i-o*u*i-h*r*l+n*u*l+o*r*p-n*a*p)*w,t[4]=v*w,t[5]=(c*f*i-d*u*i+d*r*p-e*f*p-c*r*g+e*u*g)*w,t[6]=(d*a*i-s*f*i-d*r*l+e*f*l+s*r*g-e*a*g)*w,t[7]=(s*u*i-c*a*i+c*r*l-e*u*l-s*r*p+e*a*p)*w,t[8]=y*w,t[9]=(d*h*i-c*m*i-d*n*p+e*m*p+c*n*g-e*h*g)*w,t[10]=(s*m*i-d*o*i+d*n*l-e*m*l-s*n*g+e*o*g)*w,t[11]=(c*o*i-s*h*i-c*n*l+e*h*l+s*n*p-e*o*p)*w,t[12]=_*w,t[13]=(c*m*r-d*h*r+d*n*u-e*m*u-c*n*f+e*h*f)*w,t[14]=(d*o*r-s*m*r-d*n*a+e*m*a+s*n*f-e*o*f)*w,t[15]=(s*h*r-c*o*r+c*n*a-e*h*a-s*n*u+e*o*u)*w,this}scale(t){const e=this.elements,n=t.x,r=t.y,i=t.z;return e[0]*=n,e[4]*=r,e[8]*=i,e[1]*=n,e[5]*=r,e[9]*=i,e[2]*=n,e[6]*=r,e[10]*=i,e[3]*=n,e[7]*=r,e[11]*=i,this}getMaxScaleOnAxis(){const t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],n=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],r=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,n,r))}makeTranslation(t,e,n){return this.set(1,0,0,t,0,1,0,e,0,0,1,n,0,0,0,1),this}makeRotationX(t){const e=Math.cos(t),n=Math.sin(t);return this.set(1,0,0,0,0,e,-n,0,0,n,e,0,0,0,0,1),this}makeRotationY(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,0,n,0,0,1,0,0,-n,0,e,0,0,0,0,1),this}makeRotationZ(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,-n,0,0,n,e,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(t,e){const n=Math.cos(e),r=Math.sin(e),i=1-n,s=t.x,o=t.y,a=t.z,l=i*s,c=i*o;return this.set(l*s+n,l*o-r*a,l*a+r*o,0,l*o+r*a,c*o+n,c*a-r*s,0,l*a-r*o,c*a+r*s,i*a*a+n,0,0,0,0,1),this}makeScale(t,e,n){return this.set(t,0,0,0,0,e,0,0,0,0,n,0,0,0,0,1),this}makeShear(t,e,n){return this.set(1,e,n,0,t,1,n,0,t,e,1,0,0,0,0,1),this}compose(t,e,n){const r=this.elements,i=e._x,s=e._y,o=e._z,a=e._w,l=i+i,c=s+s,h=o+o,u=i*l,p=i*c,d=i*h,m=s*c,f=s*h,g=o*h,x=a*l,v=a*c,y=a*h,_=n.x,b=n.y,w=n.z;return r[0]=(1-(m+g))*_,r[1]=(p+y)*_,r[2]=(d-v)*_,r[3]=0,r[4]=(p-y)*b,r[5]=(1-(u+g))*b,r[6]=(f+x)*b,r[7]=0,r[8]=(d+v)*w,r[9]=(f-x)*w,r[10]=(1-(u+m))*w,r[11]=0,r[12]=t.x,r[13]=t.y,r[14]=t.z,r[15]=1,this}decompose(t,e,n){const r=this.elements;let i=Mr.set(r[0],r[1],r[2]).length();const s=Mr.set(r[4],r[5],r[6]).length(),o=Mr.set(r[8],r[9],r[10]).length();this.determinant()<0&&(i=-i),t.x=r[12],t.y=r[13],t.z=r[14],Sr.copy(this);const a=1/i,l=1/s,c=1/o;return Sr.elements[0]*=a,Sr.elements[1]*=a,Sr.elements[2]*=a,Sr.elements[4]*=l,Sr.elements[5]*=l,Sr.elements[6]*=l,Sr.elements[8]*=c,Sr.elements[9]*=c,Sr.elements[10]*=c,e.setFromRotationMatrix(Sr),n.x=i,n.y=s,n.z=o,this}makePerspective(t,e,n,r,i,s){void 0===s&&console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.");const o=this.elements,a=2*i/(e-t),l=2*i/(n-r),c=(e+t)/(e-t),h=(n+r)/(n-r),u=-(s+i)/(s-i),p=-2*s*i/(s-i);return o[0]=a,o[4]=0,o[8]=c,o[12]=0,o[1]=0,o[5]=l,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=u,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(t,e,n,r,i,s){const o=this.elements,a=1/(e-t),l=1/(n-r),c=1/(s-i),h=(e+t)*a,u=(n+r)*l,p=(s+i)*c;return o[0]=2*a,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*l,o[9]=0,o[13]=-u,o[2]=0,o[6]=0,o[10]=-2*c,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<16;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<16;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t[e+9]=n[9],t[e+10]=n[10],t[e+11]=n[11],t[e+12]=n[12],t[e+13]=n[13],t[e+14]=n[14],t[e+15]=n[15],t}}exports.Matrix4=wr,wr.prototype.isMatrix4=!0;const Mr=new Yn,Sr=new wr,Tr=new Yn(0,0,0),Er=new Yn(1,1,1),Ar=new Yn,Lr=new Yn,Rr=new Yn,Cr=new wr,Pr=new Xn;class Dr{constructor(t=0,e=0,n=0,r=Dr.DefaultOrder){this._x=t,this._y=e,this._z=n,this._order=r}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._order=r||this._order,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e,n){const r=Fn.clamp,i=t.elements,s=i[0],o=i[4],a=i[8],l=i[1],c=i[5],h=i[9],u=i[2],p=i[6],d=i[10];switch(e=e||this._order){case"XYZ":this._y=Math.asin(r(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-h,d),this._z=Math.atan2(-o,s)):(this._x=Math.atan2(p,c),this._z=0);break;case"YXZ":this._x=Math.asin(-r(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(l,c)):(this._y=Math.atan2(-u,s),this._z=0);break;case"ZXY":this._x=Math.asin(r(p,-1,1)),Math.abs(p)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-o,c)):(this._y=0,this._z=Math.atan2(l,s));break;case"ZYX":this._y=Math.asin(-r(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(p,d),this._z=Math.atan2(l,s)):(this._x=0,this._z=Math.atan2(-o,c));break;case"YZX":this._z=Math.asin(r(l,-1,1)),Math.abs(l)<.9999999?(this._x=Math.atan2(-h,c),this._y=Math.atan2(-u,s)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-r(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(p,c),this._y=Math.atan2(a,s)):(this._x=Math.atan2(-h,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!1!==n&&this._onChangeCallback(),this}setFromQuaternion(t,e,n){return Cr.makeRotationFromQuaternion(t),this.setFromRotationMatrix(Cr,e,n)}setFromVector3(t,e){return this.set(t.x,t.y,t.z,e||this._order)}reorder(t){return Pr.setFromEuler(this),this.setFromQuaternion(Pr,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t}toVector3(t){return t?t.set(this._x,this._y,this._z):new Yn(this._x,this._y,this._z)}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Euler=Dr,Dr.prototype.isEuler=!0,Dr.DefaultOrder="XYZ",Dr.RotationOrders=["XYZ","YZX","ZXY","XZY","YXZ","ZYX"];class Ir{constructor(){this.mask=1}set(t){this.mask=1<<t|0}enable(t){this.mask|=1<<t|0}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t|0}disable(t){this.mask&=~(1<<t|0)}disableAll(){this.mask=0}test(t){return 0!=(this.mask&t.mask)}}exports.Layers=Ir;let Br=0;const Nr=new Yn,Fr=new Xn,Or=new wr,zr=new Yn,Gr=new Yn,Hr=new Yn,Ur=new Xn,kr=new Yn(1,0,0),Vr=new Yn(0,1,0),Wr=new Yn(0,0,1),jr={type:"added"},qr={type:"removed"};function Xr(){Object.defineProperty(this,"id",{value:Br++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Xr.DefaultUp.clone();const t=new Yn,e=new Dr,n=new Xn,r=new Yn(1,1,1);e._onChange(function(){n.setFromEuler(e,!1)}),n._onChange(function(){e.setFromQuaternion(n,void 0,!1)}),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:n},scale:{configurable:!0,enumerable:!0,value:r},modelViewMatrix:{value:new wr},normalMatrix:{value:new zn}}),this.matrix=new wr,this.matrixWorld=new wr,this.matrixAutoUpdate=Xr.DefaultMatrixAutoUpdate,this.matrixWorldNeedsUpdate=!1,this.layers=new Ir,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}Xr.DefaultUp=new Yn(0,1,0),Xr.DefaultMatrixAutoUpdate=!0,Xr.prototype=Object.assign(Object.create(In.prototype),{constructor:Xr,isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix4:function(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(t){return this.quaternion.premultiply(t),this},setRotationFromAxisAngle:function(t,e){this.quaternion.setFromAxisAngle(t,e)},setRotationFromEuler:function(t){this.quaternion.setFromEuler(t,!0)},setRotationFromMatrix:function(t){this.quaternion.setFromRotationMatrix(t)},setRotationFromQuaternion:function(t){this.quaternion.copy(t)},rotateOnAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.multiply(Fr),this},rotateOnWorldAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.premultiply(Fr),this},rotateX:function(t){return this.rotateOnAxis(kr,t)},rotateY:function(t){return this.rotateOnAxis(Vr,t)},rotateZ:function(t){return this.rotateOnAxis(Wr,t)},translateOnAxis:function(t,e){return Nr.copy(t).applyQuaternion(this.quaternion),this.position.add(Nr.multiplyScalar(e)),this},translateX:function(t){return this.translateOnAxis(kr,t)},translateY:function(t){return this.translateOnAxis(Vr,t)},translateZ:function(t){return this.translateOnAxis(Wr,t)},localToWorld:function(t){return t.applyMatrix4(this.matrixWorld)},worldToLocal:function(t){return t.applyMatrix4(Or.copy(this.matrixWorld).invert())},lookAt:function(t,e,n){t.isVector3?zr.copy(t):zr.set(t,e,n);const r=this.parent;this.updateWorldMatrix(!0,!1),Gr.setFromMatrixPosition(this.matrixWorld),this.isCamera||this.isLight?Or.lookAt(Gr,zr,this.up):Or.lookAt(zr,Gr,this.up),this.quaternion.setFromRotationMatrix(Or),r&&(Or.extractRotation(r.matrixWorld),Fr.setFromRotationMatrix(Or),this.quaternion.premultiply(Fr.invert()))},add:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.add(arguments[t]);return this}return t===this?(console.error("THREE.Object3D.add: object can't be added as a child of itself.",t),this):(t&&t.isObject3D?(null!==t.parent&&t.parent.remove(t),t.parent=this,this.children.push(t),t.dispatchEvent(jr)):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t),this)},remove:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.remove(arguments[t]);return this}const e=this.children.indexOf(t);return-1!==e&&(t.parent=null,this.children.splice(e,1),t.dispatchEvent(qr)),this},clear:function(){for(let t=0;t<this.children.length;t++){const e=this.children[t];e.parent=null,e.dispatchEvent(qr)}return this.children.length=0,this},attach:function(t){return this.updateWorldMatrix(!0,!1),Or.copy(this.matrixWorld).invert(),null!==t.parent&&(t.parent.updateWorldMatrix(!0,!1),Or.multiply(t.parent.matrixWorld)),t.applyMatrix4(Or),this.add(t),t.updateWorldMatrix(!1,!0),this},getObjectById:function(t){return this.getObjectByProperty("id",t)},getObjectByName:function(t){return this.getObjectByProperty("name",t)},getObjectByProperty:function(t,e){if(this[t]===e)return this;for(let n=0,r=this.children.length;n<r;n++){const r=this.children[n].getObjectByProperty(t,e);if(void 0!==r)return r}},getWorldPosition:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldPosition() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),t.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldQuaternion() target is now required"),t=new Xn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,t,Hr),t},getWorldScale:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldScale() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,Ur,t),t},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Object3D: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(e[8],e[9],e[10]).normalize()},raycast:function(){},traverse:function(t){t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverse(t)},traverseVisible:function(t){if(!1===this.visible)return;t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverseVisible(t)},traverseAncestors:function(t){const e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))},updateMatrix:function(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,t=!0);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].updateMatrixWorld(t)},updateWorldMatrix:function(t,e){const n=this.parent;if(!0===t&&null!==n&&n.updateWorldMatrix(!0,!1),this.matrixAutoUpdate&&this.updateMatrix(),null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),!0===e){const t=this.children;for(let e=0,n=t.length;e<n;e++)t[e].updateWorldMatrix(!1,!0)}},toJSON:function(t){const e=void 0===t||"string"==typeof t,n={};e&&(t={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{}},n.metadata={version:4.5,type:"Object",generator:"Object3D.toJSON"});const r={};function i(e,n){return void 0===e[n.uuid]&&(e[n.uuid]=n.toJSON(t)),n.uuid}if(r.uuid=this.uuid,r.type=this.type,""!==this.name&&(r.name=this.name),!0===this.castShadow&&(r.castShadow=!0),!0===this.receiveShadow&&(r.receiveShadow=!0),!1===this.visible&&(r.visible=!1),!1===this.frustumCulled&&(r.frustumCulled=!1),0!==this.renderOrder&&(r.renderOrder=this.renderOrder),"{}"!==JSON.stringify(this.userData)&&(r.userData=this.userData),r.layers=this.layers.mask,r.matrix=this.matrix.toArray(),!1===this.matrixAutoUpdate&&(r.matrixAutoUpdate=!1),this.isInstancedMesh&&(r.type="InstancedMesh",r.count=this.count,r.instanceMatrix=this.instanceMatrix.toJSON()),this.isMesh||this.isLine||this.isPoints){r.geometry=i(t.geometries,this.geometry);const e=this.geometry.parameters;if(void 0!==e&&void 0!==e.shapes){const n=e.shapes;if(Array.isArray(n))for(let e=0,r=n.length;e<r;e++){const r=n[e];i(t.shapes,r)}else i(t.shapes,n)}}if(this.isSkinnedMesh&&(r.bindMode=this.bindMode,r.bindMatrix=this.bindMatrix.toArray(),void 0!==this.skeleton&&(i(t.skeletons,this.skeleton),r.skeleton=this.skeleton.uuid)),void 0!==this.material)if(Array.isArray(this.material)){const e=[];for(let n=0,r=this.material.length;n<r;n++)e.push(i(t.materials,this.material[n]));r.material=e}else r.material=i(t.materials,this.material);if(this.children.length>0){r.children=[];for(let e=0;e<this.children.length;e++)r.children.push(this.children[e].toJSON(t).object)}if(this.animations.length>0){r.animations=[];for(let e=0;e<this.animations.length;e++){const n=this.animations[e];r.animations.push(i(t.animations,n))}}if(e){const e=s(t.geometries),r=s(t.materials),i=s(t.textures),o=s(t.images),a=s(t.shapes),l=s(t.skeletons),c=s(t.animations);e.length>0&&(n.geometries=e),r.length>0&&(n.materials=r),i.length>0&&(n.textures=i),o.length>0&&(n.images=o),a.length>0&&(n.shapes=a),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c)}return n.object=r,n;function s(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}},clone:function(t){return(new this.constructor).copy(this,t)},copy:function(t,e=!0){if(this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.rotation.order=t.rotation.order,this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(let n=0;n<t.children.length;n++){const e=t.children[n];this.add(e.clone())}return this}});const Yr=new Yn,Zr=new Yn,Jr=new zn;class Qr{constructor(t=new Yn(1,0,0),e=0){this.normal=t,this.constant=e}set(t,e){return this.normal.copy(t),this.constant=e,this}setComponents(t,e,n,r){return this.normal.set(t,e,n),this.constant=r,this}setFromNormalAndCoplanarPoint(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this}setFromCoplanarPoints(t,e,n){const r=Yr.subVectors(n,e).cross(Zr.subVectors(t,e)).normalize();return this.setFromNormalAndCoplanarPoint(r,t),this}copy(t){return this.normal.copy(t.normal),this.constant=t.constant,this}normalize(){const t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(t){return this.normal.dot(t)+this.constant}distanceToSphere(t){return this.distanceToPoint(t.center)-t.radius}projectPoint(t,e){return void 0===e&&(console.warn("THREE.Plane: .projectPoint() target is now required"),e=new Yn),e.copy(this.normal).multiplyScalar(-this.distanceToPoint(t)).add(t)}intersectLine(t,e){void 0===e&&(console.warn("THREE.Plane: .intersectLine() target is now required"),e=new Yn);const n=t.delta(Yr),r=this.normal.dot(n);if(0===r)return 0===this.distanceToPoint(t.start)?e.copy(t.start):void 0;const i=-(t.start.dot(this.normal)+this.constant)/r;return i<0||i>1?void 0:e.copy(n).multiplyScalar(i).add(t.start)}intersectsLine(t){const e=this.distanceToPoint(t.start),n=this.distanceToPoint(t.end);return e<0&&n>0||n<0&&e>0}intersectsBox(t){return t.intersectsPlane(this)}intersectsSphere(t){return t.intersectsPlane(this)}coplanarPoint(t){return void 0===t&&(console.warn("THREE.Plane: .coplanarPoint() target is now required"),t=new Yn),t.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(t,e){const n=e||Jr.getNormalMatrix(t),r=this.coplanarPoint(Yr).applyMatrix4(t),i=this.normal.applyMatrix3(n).normalize();return this.constant=-r.dot(i),this}translate(t){return this.constant-=t.dot(this.normal),this}equals(t){return t.normal.equals(this.normal)&&t.constant===this.constant}clone(){return(new this.constructor).copy(this)}}exports.Plane=Qr,Qr.prototype.isPlane=!0;const Kr=new Yn,$r=new Yn,ti=new Yn,ei=new Yn,ni=new Yn,ri=new Yn,ii=new Yn,si=new Yn,oi=new Yn,ai=new Yn;class li{constructor(t=new Yn,e=new Yn,n=new Yn){this.a=t,this.b=e,this.c=n}static getNormal(t,e,n,r){void 0===r&&(console.warn("THREE.Triangle: .getNormal() target is now required"),r=new Yn),r.subVectors(n,e),Kr.subVectors(t,e),r.cross(Kr);const i=r.lengthSq();return i>0?r.multiplyScalar(1/Math.sqrt(i)):r.set(0,0,0)}static getBarycoord(t,e,n,r,i){Kr.subVectors(r,e),$r.subVectors(n,e),ti.subVectors(t,e);const s=Kr.dot(Kr),o=Kr.dot($r),a=Kr.dot(ti),l=$r.dot($r),c=$r.dot(ti),h=s*l-o*o;if(void 0===i&&(console.warn("THREE.Triangle: .getBarycoord() target is now required"),i=new Yn),0===h)return i.set(-2,-1,-1);const u=1/h,p=(l*a-o*c)*u,d=(s*c-o*a)*u;return i.set(1-p-d,d,p)}static containsPoint(t,e,n,r){return this.getBarycoord(t,e,n,r,ei),ei.x>=0&&ei.y>=0&&ei.x+ei.y<=1}static getUV(t,e,n,r,i,s,o,a){return this.getBarycoord(t,e,n,r,ei),a.set(0,0),a.addScaledVector(i,ei.x),a.addScaledVector(s,ei.y),a.addScaledVector(o,ei.z),a}static isFrontFacing(t,e,n,r){return Kr.subVectors(n,e),$r.subVectors(t,e),Kr.cross($r).dot(r)<0}set(t,e,n){return this.a.copy(t),this.b.copy(e),this.c.copy(n),this}setFromPointsAndIndices(t,e,n,r){return this.a.copy(t[e]),this.b.copy(t[n]),this.c.copy(t[r]),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this}getArea(){return Kr.subVectors(this.c,this.b),$r.subVectors(this.a,this.b),.5*Kr.cross($r).length()}getMidpoint(t){return void 0===t&&(console.warn("THREE.Triangle: .getMidpoint() target is now required"),t=new Yn),t.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(t){return li.getNormal(this.a,this.b,this.c,t)}getPlane(t){return void 0===t&&(console.warn("THREE.Triangle: .getPlane() target is now required"),t=new Qr),t.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(t,e){return li.getBarycoord(t,this.a,this.b,this.c,e)}getUV(t,e,n,r,i){return li.getUV(t,this.a,this.b,this.c,e,n,r,i)}containsPoint(t){return li.containsPoint(t,this.a,this.b,this.c)}isFrontFacing(t){return li.isFrontFacing(this.a,this.b,this.c,t)}intersectsBox(t){return t.intersectsTriangle(this)}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Triangle: .closestPointToPoint() target is now required"),e=new Yn);const n=this.a,r=this.b,i=this.c;let s,o;ni.subVectors(r,n),ri.subVectors(i,n),si.subVectors(t,n);const a=ni.dot(si),l=ri.dot(si);if(a<=0&&l<=0)return e.copy(n);oi.subVectors(t,r);const c=ni.dot(oi),h=ri.dot(oi);if(c>=0&&h<=c)return e.copy(r);const u=a*h-c*l;if(u<=0&&a>=0&&c<=0)return s=a/(a-c),e.copy(n).addScaledVector(ni,s);ai.subVectors(t,i);const p=ni.dot(ai),d=ri.dot(ai);if(d>=0&&p<=d)return e.copy(i);const m=p*l-a*d;if(m<=0&&l>=0&&d<=0)return o=l/(l-d),e.copy(n).addScaledVector(ri,o);const f=c*d-p*h;if(f<=0&&h-c>=0&&p-d>=0)return ii.subVectors(i,r),o=(h-c)/(h-c+(p-d)),e.copy(r).addScaledVector(ii,o);const g=1/(f+m+u);return s=m*g,o=u*g,e.copy(n).addScaledVector(ni,s).addScaledVector(ri,o)}equals(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}exports.Triangle=li;let ci=0;function hi(){Object.defineProperty(this,"id",{value:ci++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Material",this.fog=!0,this.blending=x,this.side=u,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.blendSrc=P,this.blendDst=D,this.blendEquation=w,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=U,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=bn,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=an,this.stencilZFail=an,this.stencilZPass=an,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaTest=0,this.premultipliedAlpha=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0}hi.prototype=Object.assign(Object.create(In.prototype),{constructor:hi,isMaterial:!0,onBeforeCompile:function(){},customProgramCacheKey:function(){return this.onBeforeCompile.toString()},setValues:function(t){if(void 0!==t)for(const e in t){const n=t[e];if(void 0===n){console.warn("THREE.Material: '"+e+"' parameter is undefined.");continue}if("shading"===e){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===n;continue}const r=this[e];void 0!==r?r&&r.isColor?r.set(n):r&&r.isVector3&&n&&n.isVector3?r.copy(n):this[e]=n:console.warn("THREE."+this.type+": '"+e+"' is not a property of this material.")}},toJSON:function(t){const e=void 0===t||"string"==typeof t;e&&(t={textures:{},images:{}});const n={metadata:{version:4.5,type:"Material",generator:"Material.toJSON"}};function r(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),this.sheen&&this.sheen.isColor&&(n.sheen=this.sheen.getHex()),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(t).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(t).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(t).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(t).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(t).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(t).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(t).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(t).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(t).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(t).uuid,n.reflectivity=this.reflectivity,n.refractionRatio=this.refractionRatio,void 0!==this.combine&&(n.combine=this.combine),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity)),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.size&&(n.size=this.size),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),this.blending!==x&&(n.blending=this.blending),this.side!==u&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.morphTargets&&(n.morphTargets=!0),!0===this.morphNormals&&(n.morphNormals=!0),!0===this.skinning&&(n.skinning=!0),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),"{}"!==JSON.stringify(this.userData)&&(n.userData=this.userData),e){const e=r(t.textures),i=r(t.images);e.length>0&&(n.textures=e),i.length>0&&(n.images=i)}return n},clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.name=t.name,this.fog=t.fog,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;const e=t.clippingPlanes;let n=null;if(null!==e){const t=e.length;n=new Array(t);for(let r=0;r!==t;++r)n[r]=e[r].clone()}return this.clippingPlanes=n,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.premultipliedAlpha=t.premultipliedAlpha,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this},dispose:function(){this.dispatchEvent({type:"dispose"})}}),Object.defineProperty(hi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}});const ui={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},pi={h:0,s:0,l:0},di={h:0,s:0,l:0};function mi(t,e,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?t+6*(e-t)*n:n<.5?e:n<2/3?t+6*(e-t)*(2/3-n):t}function fi(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}function gi(t){return t<.0031308?12.92*t:1.055*Math.pow(t,.41666)-.055}class xi{constructor(t,e,n){return void 0===e&&void 0===n?this.set(t):this.setRGB(t,e,n)}set(t){return t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t),this}setScalar(t){return this.r=t,this.g=t,this.b=t,this}setHex(t){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,this}setRGB(t,e,n){return this.r=t,this.g=e,this.b=n,this}setHSL(t,e,n){if(t=Fn.euclideanModulo(t,1),e=Fn.clamp(e,0,1),n=Fn.clamp(n,0,1),0===e)this.r=this.g=this.b=n;else{const r=n<=.5?n*(1+e):n+e-n*e,i=2*n-r;this.r=mi(i,r,t+1/3),this.g=mi(i,r,t),this.b=mi(i,r,t-1/3)}return this}setStyle(t){function e(e){void 0!==e&&parseFloat(e)<1&&console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")}let n;if(n=/^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(t)){let t;const r=n[1],i=n[2];switch(r){case"rgb":case"rgba":if(t=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(255,parseInt(t[1],10))/255,this.g=Math.min(255,parseInt(t[2],10))/255,this.b=Math.min(255,parseInt(t[3],10))/255,e(t[4]),this;if(t=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(100,parseInt(t[1],10))/100,this.g=Math.min(100,parseInt(t[2],10))/100,this.b=Math.min(100,parseInt(t[3],10))/100,e(t[4]),this;break;case"hsl":case"hsla":if(t=/^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i)){const n=parseFloat(t[1])/360,r=parseInt(t[2],10)/100,i=parseInt(t[3],10)/100;return e(t[4]),this.setHSL(n,r,i)}}}else if(n=/^\#([A-Fa-f\d]+)$/.exec(t)){const t=n[1],e=t.length;if(3===e)return this.r=parseInt(t.charAt(0)+t.charAt(0),16)/255,this.g=parseInt(t.charAt(1)+t.charAt(1),16)/255,this.b=parseInt(t.charAt(2)+t.charAt(2),16)/255,this;if(6===e)return this.r=parseInt(t.charAt(0)+t.charAt(1),16)/255,this.g=parseInt(t.charAt(2)+t.charAt(3),16)/255,this.b=parseInt(t.charAt(4)+t.charAt(5),16)/255,this}return t&&t.length>0?this.setColorName(t):this}setColorName(t){const e=ui[t];return void 0!==e?this.setHex(e):console.warn("THREE.Color: Unknown color "+t),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(t){return this.r=t.r,this.g=t.g,this.b=t.b,this}copyGammaToLinear(t,e=2){return this.r=Math.pow(t.r,e),this.g=Math.pow(t.g,e),this.b=Math.pow(t.b,e),this}copyLinearToGamma(t,e=2){const n=e>0?1/e:1;return this.r=Math.pow(t.r,n),this.g=Math.pow(t.g,n),this.b=Math.pow(t.b,n),this}convertGammaToLinear(t){return this.copyGammaToLinear(this,t),this}convertLinearToGamma(t){return this.copyLinearToGamma(this,t),this}copySRGBToLinear(t){return this.r=fi(t.r),this.g=fi(t.g),this.b=fi(t.b),this}copyLinearToSRGB(t){return this.r=gi(t.r),this.g=gi(t.g),this.b=gi(t.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(){return 255*this.r<<16^255*this.g<<8^255*this.b<<0}getHexString(){return("000000"+this.getHex().toString(16)).slice(-6)}getHSL(t){void 0===t&&(console.warn("THREE.Color: .getHSL() target is now required"),t={h:0,s:0,l:0});const e=this.r,n=this.g,r=this.b,i=Math.max(e,n,r),s=Math.min(e,n,r);let o,a;const l=(s+i)/2;if(s===i)o=0,a=0;else{const t=i-s;switch(a=l<=.5?t/(i+s):t/(2-i-s),i){case e:o=(n-r)/t+(n<r?6:0);break;case n:o=(r-e)/t+2;break;case r:o=(e-n)/t+4}o/=6}return t.h=o,t.s=a,t.l=l,t}getStyle(){return"rgb("+(255*this.r|0)+","+(255*this.g|0)+","+(255*this.b|0)+")"}offsetHSL(t,e,n){return this.getHSL(pi),pi.h+=t,pi.s+=e,pi.l+=n,this.setHSL(pi.h,pi.s,pi.l),this}add(t){return this.r+=t.r,this.g+=t.g,this.b+=t.b,this}addColors(t,e){return this.r=t.r+e.r,this.g=t.g+e.g,this.b=t.b+e.b,this}addScalar(t){return this.r+=t,this.g+=t,this.b+=t,this}sub(t){return this.r=Math.max(0,this.r-t.r),this.g=Math.max(0,this.g-t.g),this.b=Math.max(0,this.b-t.b),this}multiply(t){return this.r*=t.r,this.g*=t.g,this.b*=t.b,this}multiplyScalar(t){return this.r*=t,this.g*=t,this.b*=t,this}lerp(t,e){return this.r+=(t.r-this.r)*e,this.g+=(t.g-this.g)*e,this.b+=(t.b-this.b)*e,this}lerpColors(t,e,n){return this.r=t.r+(e.r-t.r)*n,this.g=t.g+(e.g-t.g)*n,this.b=t.b+(e.b-t.b)*n,this}lerpHSL(t,e){this.getHSL(pi),t.getHSL(di);const n=Fn.lerp(pi.h,di.h,e),r=Fn.lerp(pi.s,di.s,e),i=Fn.lerp(pi.l,di.l,e);return this.setHSL(n,r,i),this}equals(t){return t.r===this.r&&t.g===this.g&&t.b===this.b}fromArray(t,e=0){return this.r=t[e],this.g=t[e+1],this.b=t[e+2],this}toArray(t=[],e=0){return t[e]=this.r,t[e+1]=this.g,t[e+2]=this.b,t}fromBufferAttribute(t,e){return this.r=t.getX(e),this.g=t.getY(e),this.b=t.getZ(e),!0===t.normalized&&(this.r/=255,this.g/=255,this.b/=255),this}toJSON(){return this.getHex()}}exports.Color=xi,xi.NAMES=ui,xi.prototype.isColor=!0,xi.prototype.r=1,xi.prototype.g=1,xi.prototype.b=1;class vi extends hi{constructor(t){super(),this.type="MeshBasicMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this}}exports.MeshBasicMaterial=vi,vi.prototype.isMeshBasicMaterial=!0;const yi=new Yn,_i=new On;function bi(t,e,n){if(Array.isArray(t))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.name="",this.array=t,this.itemSize=e,this.count=void 0!==t?t.length/e:0,this.normalized=!0===n,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0}function wi(t,e,n){bi.call(this,new Int8Array(t),e,n)}function Mi(t,e,n){bi.call(this,new Uint8Array(t),e,n)}function Si(t,e,n){bi.call(this,new Uint8ClampedArray(t),e,n)}function Ti(t,e,n){bi.call(this,new Int16Array(t),e,n)}function Ei(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ai(t,e,n){bi.call(this,new Int32Array(t),e,n)}function Li(t,e,n){bi.call(this,new Uint32Array(t),e,n)}function Ri(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ci(t,e,n){bi.call(this,new Float32Array(t),e,n)}function Pi(t,e,n){bi.call(this,new Float64Array(t),e,n)}function Di(t){if(0===t.length)return-1/0;let e=t[0];for(let n=1,r=t.length;n<r;++n)t[n]>e&&(e=t[n]);return e}Object.defineProperty(bi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(bi.prototype,{isBufferAttribute:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.itemSize,n*=e.itemSize;for(let r=0,i=this.itemSize;r<i;r++)this.array[t+r]=e.array[n+r];return this},copyArray:function(t){return this.array.set(t),this},copyColorsArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",r),i=new xi),e[n++]=i.r,e[n++]=i.g,e[n++]=i.b}return this},copyVector2sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",r),i=new On),e[n++]=i.x,e[n++]=i.y}return this},copyVector3sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",r),i=new Yn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z}return this},copyVector4sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",r),i=new Wn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z,e[n++]=i.w}return this},applyMatrix3:function(t){if(2===this.itemSize)for(let e=0,n=this.count;e<n;e++)_i.fromBufferAttribute(this,e),_i.applyMatrix3(t),this.setXY(e,_i.x,_i.y);else if(3===this.itemSize)for(let e=0,n=this.count;e<n;e++)yi.fromBufferAttribute(this,e),yi.applyMatrix3(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyMatrix4:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyMatrix4(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyNormalMatrix:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyNormalMatrix(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},transformDirection:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.transformDirection(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},set:function(t,e=0){return this.array.set(t,e),this},getX:function(t){return this.array[t*this.itemSize]},setX:function(t,e){return this.array[t*this.itemSize]=e,this},getY:function(t){return this.array[t*this.itemSize+1]},setY:function(t,e){return this.array[t*this.itemSize+1]=e,this},getZ:function(t){return this.array[t*this.itemSize+2]},setZ:function(t,e){return this.array[t*this.itemSize+2]=e,this},getW:function(t){return this.array[t*this.itemSize+3]},setW:function(t,e){return this.array[t*this.itemSize+3]=e,this},setXY:function(t,e,n){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this.array[t+3]=i,this},onUpload:function(t){return this.onUploadCallback=t,this},clone:function(){return new this.constructor(this.array,this.itemSize).copy(this)},toJSON:function(){return{itemSize:this.itemSize,type:this.array.constructor.name,array:Array.prototype.slice.call(this.array),normalized:this.normalized}}}),wi.prototype=Object.create(bi.prototype),wi.prototype.constructor=wi,Mi.prototype=Object.create(bi.prototype),Mi.prototype.constructor=Mi,Si.prototype=Object.create(bi.prototype),Si.prototype.constructor=Si,Ti.prototype=Object.create(bi.prototype),Ti.prototype.constructor=Ti,Ei.prototype=Object.create(bi.prototype),Ei.prototype.constructor=Ei,Ai.prototype=Object.create(bi.prototype),Ai.prototype.constructor=Ai,Li.prototype=Object.create(bi.prototype),Li.prototype.constructor=Li,Ri.prototype=Object.create(bi.prototype),Ri.prototype.constructor=Ri,Ri.prototype.isFloat16BufferAttribute=!0,Ci.prototype=Object.create(bi.prototype),Ci.prototype.constructor=Ci,Pi.prototype=Object.create(bi.prototype),Pi.prototype.constructor=Pi;const Ii={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:Uint8ClampedArray,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};function Bi(t,e){return new Ii[t](e)}let Ni=0;const Fi=new wr,Oi=new Xr,zi=new Yn,Gi=new Qn,Hi=new Qn,Ui=new Yn;function ki(){Object.defineProperty(this,"id",{value:Ni++}),this.uuid=Fn.generateUUID(),this.name="",this.type="BufferGeometry",this.index=null,this.attributes={},this.morphAttributes={},this.morphTargetsRelative=!1,this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.drawRange={start:0,count:1/0},this.userData={}}ki.prototype=Object.assign(Object.create(In.prototype),{constructor:ki,isBufferGeometry:!0,getIndex:function(){return this.index},setIndex:function(t){return Array.isArray(t)?this.index=new(Di(t)>65535?Li:Ei)(t,1):this.index=t,this},getAttribute:function(t){return this.attributes[t]},setAttribute:function(t,e){return this.attributes[t]=e,this},deleteAttribute:function(t){return delete this.attributes[t],this},hasAttribute:function(t){return void 0!==this.attributes[t]},addGroup:function(t,e,n=0){this.groups.push({start:t,count:e,materialIndex:n})},clearGroups:function(){this.groups=[]},setDrawRange:function(t,e){this.drawRange.start=t,this.drawRange.count=e},applyMatrix4:function(t){const e=this.attributes.position;void 0!==e&&(e.applyMatrix4(t),e.needsUpdate=!0);const n=this.attributes.normal;if(void 0!==n){const e=(new zn).getNormalMatrix(t);n.applyNormalMatrix(e),n.needsUpdate=!0}const r=this.attributes.tangent;return void 0!==r&&(r.transformDirection(t),r.needsUpdate=!0),null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this},rotateX:function(t){return Fi.makeRotationX(t),this.applyMatrix4(Fi),this},rotateY:function(t){return Fi.makeRotationY(t),this.applyMatrix4(Fi),this},rotateZ:function(t){return Fi.makeRotationZ(t),this.applyMatrix4(Fi),this},translate:function(t,e,n){return Fi.makeTranslation(t,e,n),this.applyMatrix4(Fi),this},scale:function(t,e,n){return Fi.makeScale(t,e,n),this.applyMatrix4(Fi),this},lookAt:function(t){return Oi.lookAt(t),Oi.updateMatrix(),this.applyMatrix4(Oi.matrix),this},center:function(){return this.computeBoundingBox(),this.boundingBox.getCenter(zi).negate(),this.translate(zi.x,zi.y,zi.z),this},setFromPoints:function(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n];e.push(r.x,r.y,r.z||0)}return this.setAttribute("position",new Ci(e,3)),this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new Qn);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingBox.set(new Yn(-1/0,-1/0,-1/0),new Yn(1/0,1/0,1/0));if(void 0!==t){if(this.boundingBox.setFromBufferAttribute(t),e)for(let n=0,r=e.length;n<r;n++){const t=e[n];Gi.setFromBufferAttribute(t),this.morphTargetsRelative?(Ui.addVectors(this.boundingBox.min,Gi.min),this.boundingBox.expandByPoint(Ui),Ui.addVectors(this.boundingBox.max,Gi.max),this.boundingBox.expandByPoint(Ui)):(this.boundingBox.expandByPoint(Gi.min),this.boundingBox.expandByPoint(Gi.max))}}else this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new dr);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingSphere.set(new Yn,1/0);if(t){const n=this.boundingSphere.center;if(Gi.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const n=e[t];Hi.setFromBufferAttribute(n),this.morphTargetsRelative?(Ui.addVectors(Gi.min,Hi.min),Gi.expandByPoint(Ui),Ui.addVectors(Gi.max,Hi.max),Gi.expandByPoint(Ui)):(Gi.expandByPoint(Hi.min),Gi.expandByPoint(Hi.max))}Gi.getCenter(n);let r=0;for(let e=0,i=t.count;e<i;e++)Ui.fromBufferAttribute(t,e),r=Math.max(r,n.distanceToSquared(Ui));if(e)for(let i=0,s=e.length;i<s;i++){const s=e[i],o=this.morphTargetsRelative;for(let e=0,i=s.count;e<i;e++)Ui.fromBufferAttribute(s,e),o&&(zi.fromBufferAttribute(t,e),Ui.add(zi)),r=Math.max(r,n.distanceToSquared(Ui))}this.boundingSphere.radius=Math.sqrt(r),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}},computeFaceNormals:function(){},computeTangents:function(){const t=this.index,e=this.attributes;if(null===t||void 0===e.position||void 0===e.normal||void 0===e.uv)return void console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");const n=t.array,r=e.position.array,i=e.normal.array,s=e.uv.array,o=r.length/3;void 0===e.tangent&&this.setAttribute("tangent",new bi(new Float32Array(4*o),4));const a=e.tangent.array,l=[],c=[];for(let T=0;T<o;T++)l[T]=new Yn,c[T]=new Yn;const h=new Yn,u=new Yn,p=new Yn,d=new On,m=new On,f=new On,g=new Yn,x=new Yn;function v(t,e,n){h.fromArray(r,3*t),u.fromArray(r,3*e),p.fromArray(r,3*n),d.fromArray(s,2*t),m.fromArray(s,2*e),f.fromArray(s,2*n),u.sub(h),p.sub(h),m.sub(d),f.sub(d);const i=1/(m.x*f.y-f.x*m.y);isFinite(i)&&(g.copy(u).multiplyScalar(f.y).addScaledVector(p,-m.y).multiplyScalar(i),x.copy(p).multiplyScalar(m.x).addScaledVector(u,-f.x).multiplyScalar(i),l[t].add(g),l[e].add(g),l[n].add(g),c[t].add(x),c[e].add(x),c[n].add(x))}let y=this.groups;0===y.length&&(y=[{start:0,count:n.length}]);for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)v(n[r+0],n[r+1],n[r+2])}const _=new Yn,b=new Yn,w=new Yn,M=new Yn;function S(t){w.fromArray(i,3*t),M.copy(w);const e=l[t];_.copy(e),_.sub(w.multiplyScalar(w.dot(e))).normalize(),b.crossVectors(M,e);const n=b.dot(c[t])<0?-1:1;a[4*t]=_.x,a[4*t+1]=_.y,a[4*t+2]=_.z,a[4*t+3]=n}for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)S(n[r+0]),S(n[r+1]),S(n[r+2])}},computeVertexNormals:function(){const t=this.index,e=this.getAttribute("position");if(void 0!==e){let n=this.getAttribute("normal");if(void 0===n)n=new bi(new Float32Array(3*e.count),3),this.setAttribute("normal",n);else for(let t=0,e=n.count;t<e;t++)n.setXYZ(t,0,0,0);const r=new Yn,i=new Yn,s=new Yn,o=new Yn,a=new Yn,l=new Yn,c=new Yn,h=new Yn;if(t)for(let u=0,p=t.count;u<p;u+=3){const p=t.getX(u+0),d=t.getX(u+1),m=t.getX(u+2);r.fromBufferAttribute(e,p),i.fromBufferAttribute(e,d),s.fromBufferAttribute(e,m),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),o.fromBufferAttribute(n,p),a.fromBufferAttribute(n,d),l.fromBufferAttribute(n,m),o.add(c),a.add(c),l.add(c),n.setXYZ(p,o.x,o.y,o.z),n.setXYZ(d,a.x,a.y,a.z),n.setXYZ(m,l.x,l.y,l.z)}else for(let t=0,u=e.count;t<u;t+=3)r.fromBufferAttribute(e,t+0),i.fromBufferAttribute(e,t+1),s.fromBufferAttribute(e,t+2),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),n.setXYZ(t+0,c.x,c.y,c.z),n.setXYZ(t+1,c.x,c.y,c.z),n.setXYZ(t+2,c.x,c.y,c.z);this.normalizeNormals(),n.needsUpdate=!0}},merge:function(t,e){if(!t||!t.isBufferGeometry)return void console.error("THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.",t);void 0===e&&(e=0,console.warn("THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge."));const n=this.attributes;for(const r in n){if(void 0===t.attributes[r])continue;const i=n[r].array,s=t.attributes[r],o=s.array,a=s.itemSize*e,l=Math.min(o.length,i.length-a);for(let t=0,e=a;t<l;t++,e++)i[e]=o[t]}return this},normalizeNormals:function(){const t=this.attributes.normal;for(let e=0,n=t.count;e<n;e++)Ui.fromBufferAttribute(t,e),Ui.normalize(),t.setXYZ(e,Ui.x,Ui.y,Ui.z)},toNonIndexed:function(){function t(t,e){const n=t.array,r=t.itemSize,i=t.normalized,s=new n.constructor(e.length*r);let o=0,a=0;for(let l=0,c=e.length;l<c;l++){o=e[l]*r;for(let t=0;t<r;t++)s[a++]=n[o++]}return new bi(s,r,i)}if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed."),this;const e=new ki,n=this.index.array,r=this.attributes;for(const o in r){const i=t(r[o],n);e.setAttribute(o,i)}const i=this.morphAttributes;for(const o in i){const r=[],s=i[o];for(let e=0,i=s.length;e<i;e++){const i=t(s[e],n);r.push(i)}e.morphAttributes[o]=r}e.morphTargetsRelative=this.morphTargetsRelative;const s=this.groups;for(let o=0,a=s.length;o<a;o++){const t=s[o];e.addGroup(t.start,t.count,t.materialIndex)}return e},toJSON:function(){const t={metadata:{version:4.5,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};if(t.uuid=this.uuid,t.type=this.type,""!==this.name&&(t.name=this.name),Object.keys(this.userData).length>0&&(t.userData=this.userData),void 0!==this.parameters){const e=this.parameters;for(const n in e)void 0!==e[n]&&(t[n]=e[n]);return t}t.data={attributes:{}};const e=this.index;null!==e&&(t.data.index={type:e.array.constructor.name,array:Array.prototype.slice.call(e.array)});const n=this.attributes;for(const a in n){const e=n[a],r=e.toJSON(t.data);""!==e.name&&(r.name=e.name),t.data.attributes[a]=r}const r={};let i=!1;for(const a in this.morphAttributes){const e=this.morphAttributes[a],n=[];for(let r=0,i=e.length;r<i;r++){const i=e[r],s=i.toJSON(t.data);""!==i.name&&(s.name=i.name),n.push(s)}n.length>0&&(r[a]=n,i=!0)}i&&(t.data.morphAttributes=r,t.data.morphTargetsRelative=this.morphTargetsRelative);const s=this.groups;s.length>0&&(t.data.groups=JSON.parse(JSON.stringify(s)));const o=this.boundingSphere;return null!==o&&(t.data.boundingSphere={center:o.center.toArray(),radius:o.radius}),t},clone:function(){return(new ki).copy(this)},copy:function(t){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const e={};this.name=t.name;const n=t.index;null!==n&&this.setIndex(n.clone(e));const r=t.attributes;for(const l in r){const t=r[l];this.setAttribute(l,t.clone(e))}const i=t.morphAttributes;for(const l in i){const t=[],n=i[l];for(let r=0,i=n.length;r<i;r++)t.push(n[r].clone(e));this.morphAttributes[l]=t}this.morphTargetsRelative=t.morphTargetsRelative;const s=t.groups;for(let l=0,c=s.length;l<c;l++){const t=s[l];this.addGroup(t.start,t.count,t.materialIndex)}const o=t.boundingBox;null!==o&&(this.boundingBox=o.clone());const a=t.boundingSphere;return null!==a&&(this.boundingSphere=a.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this.userData=t.userData,this},dispose:function(){this.dispatchEvent({type:"dispose"})}});const Vi=new wr,Wi=new br,ji=new dr,qi=new Yn,Xi=new Yn,Yi=new Yn,Zi=new Yn,Ji=new Yn,Qi=new Yn,Ki=new Yn,$i=new Yn,ts=new Yn,es=new On,ns=new On,rs=new On,is=new Yn,ss=new Yn;function os(t=new ki,e=new vi){Xr.call(this),this.type="Mesh",this.geometry=t,this.material=e,this.updateMorphTargets()}function as(t,e,n,r,i,s,o,a){let l;if(null===(l=e.side===p?r.intersectTriangle(o,s,i,!0,a):r.intersectTriangle(i,s,o,e.side!==d,a)))return null;ss.copy(a),ss.applyMatrix4(t.matrixWorld);const c=n.ray.origin.distanceTo(ss);return c<n.near||c>n.far?null:{distance:c,point:ss.clone(),object:t}}function ls(t,e,n,r,i,s,o,a,l,c,h,u){qi.fromBufferAttribute(i,c),Xi.fromBufferAttribute(i,h),Yi.fromBufferAttribute(i,u);const p=t.morphTargetInfluences;if(e.morphTargets&&s&&p){Ki.set(0,0,0),$i.set(0,0,0),ts.set(0,0,0);for(let t=0,e=s.length;t<e;t++){const e=p[t],n=s[t];0!==e&&(Zi.fromBufferAttribute(n,c),Ji.fromBufferAttribute(n,h),Qi.fromBufferAttribute(n,u),o?(Ki.addScaledVector(Zi,e),$i.addScaledVector(Ji,e),ts.addScaledVector(Qi,e)):(Ki.addScaledVector(Zi.sub(qi),e),$i.addScaledVector(Ji.sub(Xi),e),ts.addScaledVector(Qi.sub(Yi),e)))}qi.add(Ki),Xi.add($i),Yi.add(ts)}t.isSkinnedMesh&&e.skinning&&(t.boneTransform(c,qi),t.boneTransform(h,Xi),t.boneTransform(u,Yi));const d=as(t,e,n,r,qi,Xi,Yi,is);if(d){a&&(es.fromBufferAttribute(a,c),ns.fromBufferAttribute(a,h),rs.fromBufferAttribute(a,u),d.uv=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On)),l&&(es.fromBufferAttribute(l,c),ns.fromBufferAttribute(l,h),rs.fromBufferAttribute(l,u),d.uv2=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On));const t={a:c,b:h,c:u,normal:new Yn,materialIndex:0};li.getNormal(qi,Xi,Yi,t.normal),d.face=t}return d}os.prototype=Object.assign(Object.create(Xr.prototype),{constructor:os,isMesh:!0,copy:function(t){return Xr.prototype.copy.call(this,t),void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this.material=t.material,this.geometry=t.geometry,this},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}},raycast:function(t,e){const n=this.geometry,r=this.material,i=this.matrixWorld;if(void 0===r)return;if(null===n.boundingSphere&&n.computeBoundingSphere(),ji.copy(n.boundingSphere),ji.applyMatrix4(i),!1===t.ray.intersectsSphere(ji))return;if(Vi.copy(i).invert(),Wi.copy(t.ray).applyMatrix4(Vi),null!==n.boundingBox&&!1===Wi.intersectsBox(n.boundingBox))return;let s;if(n.isBufferGeometry){const i=n.index,o=n.attributes.position,a=n.morphAttributes.position,l=n.morphTargetsRelative,c=n.attributes.uv,h=n.attributes.uv2,u=n.groups,p=n.drawRange;if(null!==i)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const d=u[n],m=r[d.materialIndex];for(let n=Math.max(d.start,p.start),r=Math.min(d.start+d.count,p.start+p.count);n<r;n+=3){const r=i.getX(n),u=i.getX(n+1),p=i.getX(n+2);(s=ls(this,m,t,Wi,o,a,l,c,h,r,u,p))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=d.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),u=Math.min(i.count,p.start+p.count);n<u;n+=3){const u=i.getX(n),p=i.getX(n+1),d=i.getX(n+2);(s=ls(this,r,t,Wi,o,a,l,c,h,u,p,d))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}else if(void 0!==o)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const i=u[n],d=r[i.materialIndex];for(let n=Math.max(i.start,p.start),r=Math.min(i.start+i.count,p.start+p.count);n<r;n+=3){(s=ls(this,d,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=i.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),i=Math.min(o.count,p.start+p.count);n<i;n+=3){(s=ls(this,r,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}}else n.isGeometry&&console.error("THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}});class cs extends ki{constructor(t=1,e=1,n=1,r=1,i=1,s=1){super(),this.type="BoxGeometry",this.parameters={width:t,height:e,depth:n,widthSegments:r,heightSegments:i,depthSegments:s};const o=this;r=Math.floor(r),i=Math.floor(i),s=Math.floor(s);const a=[],l=[],c=[],h=[];let u=0,p=0;function d(t,e,n,r,i,s,d,m,f,g,x){const v=s/f,y=d/g,_=s/2,b=d/2,w=m/2,M=f+1,S=g+1;let T=0,E=0;const A=new Yn;for(let o=0;o<S;o++){const s=o*y-b;for(let a=0;a<M;a++){const u=a*v-_;A[t]=u*r,A[e]=s*i,A[n]=w,l.push(A.x,A.y,A.z),A[t]=0,A[e]=0,A[n]=m>0?1:-1,c.push(A.x,A.y,A.z),h.push(a/f),h.push(1-o/g),T+=1}}for(let o=0;o<g;o++)for(let t=0;t<f;t++){const e=u+t+M*o,n=u+t+M*(o+1),r=u+(t+1)+M*(o+1),i=u+(t+1)+M*o;a.push(e,n,i),a.push(n,r,i),E+=6}o.addGroup(p,E,x),p+=E,u+=T}d("z","y","x",-1,-1,n,e,t,s,i,0),d("z","y","x",1,-1,n,e,-t,s,i,1),d("x","z","y",1,1,t,n,e,r,s,2),d("x","z","y",1,-1,t,n,-e,r,s,3),d("x","y","z",1,-1,t,e,n,r,i,4),d("x","y","z",-1,-1,t,e,-n,r,i,5),this.setIndex(a),this.setAttribute("position",new Ci(l,3)),this.setAttribute("normal",new Ci(c,3)),this.setAttribute("uv",new Ci(h,2))}}function hs(t){const e={};for(const n in t){e[n]={};for(const r in t[n]){const i=t[n][r];i&&(i.isColor||i.isMatrix3||i.isMatrix4||i.isVector2||i.isVector3||i.isVector4||i.isTexture||i.isQuaternion)?e[n][r]=i.clone():Array.isArray(i)?e[n][r]=i.slice():e[n][r]=i}}return e}function us(t){const e={};for(let n=0;n<t.length;n++){const r=hs(t[n]);for(const t in r)e[t]=r[t]}return e}exports.BoxGeometry=exports.BoxBufferGeometry=cs;const ps={clone:hs,merge:us};exports.UniformsUtils=ps;var ds="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}",ms="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";function fs(t){hi.call(this),this.type="ShaderMaterial",this.defines={},this.uniforms={},this.vertexShader=ds,this.fragmentShader=ms,this.linewidth=1,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.clipping=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.extensions={derivatives:!1,fragDepth:!1,drawBuffers:!1,shaderTextureLOD:!1},this.defaultAttributeValues={color:[1,1,1],uv:[0,0],uv2:[0,0]},this.index0AttributeName=void 0,this.uniformsNeedUpdate=!1,this.glslVersion=null,void 0!==t&&(void 0!==t.attributes&&console.error("THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead."),this.setValues(t))}function gs(){Xr.call(this),this.type="Camera",this.matrixWorldInverse=new wr,this.projectionMatrix=new wr,this.projectionMatrixInverse=new wr}function xs(t=50,e=1,n=.1,r=2e3){gs.call(this),this.type="PerspectiveCamera",this.fov=t,this.zoom=1,this.near=n,this.far=r,this.focus=10,this.aspect=e,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}fs.prototype=Object.create(hi.prototype),fs.prototype.constructor=fs,fs.prototype.isShaderMaterial=!0,fs.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=hs(t.uniforms),this.defines=Object.assign({},t.defines),this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.lights=t.lights,this.clipping=t.clipping,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.extensions=Object.assign({},t.extensions),this.glslVersion=t.glslVersion,this},fs.prototype.toJSON=function(t){const e=hi.prototype.toJSON.call(this,t);e.glslVersion=this.glslVersion,e.uniforms={};for(const r in this.uniforms){const n=this.uniforms[r].value;n&&n.isTexture?e.uniforms[r]={type:"t",value:n.toJSON(t).uuid}:n&&n.isColor?e.uniforms[r]={type:"c",value:n.getHex()}:n&&n.isVector2?e.uniforms[r]={type:"v2",value:n.toArray()}:n&&n.isVector3?e.uniforms[r]={type:"v3",value:n.toArray()}:n&&n.isVector4?e.uniforms[r]={type:"v4",value:n.toArray()}:n&&n.isMatrix3?e.uniforms[r]={type:"m3",value:n.toArray()}:n&&n.isMatrix4?e.uniforms[r]={type:"m4",value:n.toArray()}:e.uniforms[r]={value:n}}Object.keys(this.defines).length>0&&(e.defines=this.defines),e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader;const n={};for(const r in this.extensions)!0===this.extensions[r]&&(n[r]=!0);return Object.keys(n).length>0&&(e.extensions=n),e},gs.prototype=Object.assign(Object.create(Xr.prototype),{constructor:gs,isCamera:!0,copy:function(t,e){return Xr.prototype.copy.call(this,t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this.projectionMatrixInverse.copy(t.projectionMatrixInverse),this},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Camera: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(-e[8],-e[9],-e[10]).normalize()},updateMatrixWorld:function(t){Xr.prototype.updateMatrixWorld.call(this,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()},updateWorldMatrix:function(t,e){Xr.prototype.updateWorldMatrix.call(this,t,e),this.matrixWorldInverse.copy(this.matrixWorld).invert()},clone:function(){return(new this.constructor).copy(this)}}),xs.prototype=Object.assign(Object.create(gs.prototype),{constructor:xs,isPerspectiveCamera:!0,copy:function(t,e){return gs.prototype.copy.call(this,t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this},setFocalLength:function(t){const e=.5*this.getFilmHeight()/t;this.fov=2*Fn.RAD2DEG*Math.atan(e),this.updateProjectionMatrix()},getFocalLength:function(){const t=Math.tan(.5*Fn.DEG2RAD*this.fov);return.5*this.getFilmHeight()/t},getEffectiveFOV:function(){return 2*Fn.RAD2DEG*Math.atan(Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(t,e,n,r,i,s){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){const t=this.near;let e=t*Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom,n=2*e,r=this.aspect*n,i=-.5*r;const s=this.view;if(null!==this.view&&this.view.enabled){const t=s.fullWidth,o=s.fullHeight;i+=s.offsetX*r/t,e-=s.offsetY*n/o,r*=s.width/t,n*=s.height/o}const o=this.filmOffset;0!==o&&(i+=t*o/this.getFilmWidth()),this.projectionMatrix.makePerspective(i,i+r,e,e-n,t,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()},toJSON:function(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}});const vs=90,ys=1;class _s extends Xr{constructor(t,e,n){if(super(),this.type="CubeCamera",!0!==n.isWebGLCubeRenderTarget)return void console.error("THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.");this.renderTarget=n;const r=new xs(vs,ys,t,e);r.layers=this.layers,r.up.set(0,-1,0),r.lookAt(new Yn(1,0,0)),this.add(r);const i=new xs(vs,ys,t,e);i.layers=this.layers,i.up.set(0,-1,0),i.lookAt(new Yn(-1,0,0)),this.add(i);const s=new xs(vs,ys,t,e);s.layers=this.layers,s.up.set(0,0,1),s.lookAt(new Yn(0,1,0)),this.add(s);const o=new xs(vs,ys,t,e);o.layers=this.layers,o.up.set(0,0,-1),o.lookAt(new Yn(0,-1,0)),this.add(o);const a=new xs(vs,ys,t,e);a.layers=this.layers,a.up.set(0,-1,0),a.lookAt(new Yn(0,0,1)),this.add(a);const l=new xs(vs,ys,t,e);l.layers=this.layers,l.up.set(0,-1,0),l.lookAt(new Yn(0,0,-1)),this.add(l)}update(t,e){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget,[r,i,s,o,a,l]=this.children,c=t.xr.enabled,h=t.getRenderTarget();t.xr.enabled=!1;const u=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,t.setRenderTarget(n,0),t.render(e,r),t.setRenderTarget(n,1),t.render(e,i),t.setRenderTarget(n,2),t.render(e,s),t.setRenderTarget(n,3),t.render(e,o),t.setRenderTarget(n,4),t.render(e,a),n.texture.generateMipmaps=u,t.setRenderTarget(n,5),t.render(e,l),t.setRenderTarget(h),t.xr.enabled=c}}exports.CubeCamera=_s;class bs extends kn{constructor(t,e,n,r,i,s,o,a,l,c){super(t=void 0!==t?t:[],e=void 0!==e?e:nt,n,r,i,s,o=void 0!==o?o:Bt,a,l,c),this._needsFlipEnvMap=!0,this.flipY=!1}get images(){return this.image}set images(t){this.image=t}}exports.CubeTexture=bs,bs.prototype.isCubeTexture=!0;class ws extends jn{constructor(t,e,n){Number.isInteger(e)&&(console.warn("THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )"),e=n),super(t,t,e),e=e||{},this.texture=new bs(void 0,e.mapping,e.wrapS,e.wrapT,e.magFilter,e.minFilter,e.format,e.type,e.anisotropy,e.encoding),this.texture.generateMipmaps=void 0!==e.generateMipmaps&&e.generateMipmaps,this.texture.minFilter=void 0!==e.minFilter?e.minFilter:gt,this.texture._needsFlipEnvMap=!1}fromEquirectangularTexture(t,e){this.texture.type=e.type,this.texture.format=Nt,this.texture.encoding=e.encoding,this.texture.generateMipmaps=e.generateMipmaps,this.texture.minFilter=e.minFilter,this.texture.magFilter=e.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include <common>\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},r=new cs(5,5,5),i=new fs({name:"CubemapFromEquirect",uniforms:hs(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:p,blending:g});i.uniforms.tEquirect.value=e;const s=new os(r,i),o=e.minFilter;return e.minFilter===yt&&(e.minFilter=gt),new _s(1,10,this).update(t,s),e.minFilter=o,s.geometry.dispose(),s.material.dispose(),this}clear(t,e,n,r){const i=t.getRenderTarget();for(let s=0;s<6;s++)t.setRenderTarget(this,s),t.clear(e,n,r);t.setRenderTarget(i)}}exports.WebGLCubeRenderTarget=ws,ws.prototype.isWebGLCubeRenderTarget=!0;class Ms extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={data:t||null,width:e||1,height:n||1},this.magFilter=void 0!==l?l:ut,this.minFilter=void 0!==c?c:ut,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.needsUpdate=!0}}exports.DataTexture=Ms,Ms.prototype.isDataTexture=!0;const Ss=new dr,Ts=new Yn;class Es{constructor(t=new Qr,e=new Qr,n=new Qr,r=new Qr,i=new Qr,s=new Qr){this.planes=[t,e,n,r,i,s]}set(t,e,n,r,i,s){const o=this.planes;return o[0].copy(t),o[1].copy(e),o[2].copy(n),o[3].copy(r),o[4].copy(i),o[5].copy(s),this}copy(t){const e=this.planes;for(let n=0;n<6;n++)e[n].copy(t.planes[n]);return this}setFromProjectionMatrix(t){const e=this.planes,n=t.elements,r=n[0],i=n[1],s=n[2],o=n[3],a=n[4],l=n[5],c=n[6],h=n[7],u=n[8],p=n[9],d=n[10],m=n[11],f=n[12],g=n[13],x=n[14],v=n[15];return e[0].setComponents(o-r,h-a,m-u,v-f).normalize(),e[1].setComponents(o+r,h+a,m+u,v+f).normalize(),e[2].setComponents(o+i,h+l,m+p,v+g).normalize(),e[3].setComponents(o-i,h-l,m-p,v-g).normalize(),e[4].setComponents(o-s,h-c,m-d,v-x).normalize(),e[5].setComponents(o+s,h+c,m+d,v+x).normalize(),this}intersectsObject(t){const e=t.geometry;return null===e.boundingSphere&&e.computeBoundingSphere(),Ss.copy(e.boundingSphere).applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSprite(t){return Ss.center.set(0,0,0),Ss.radius=.7071067811865476,Ss.applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSphere(t){const e=this.planes,n=t.center,r=-t.radius;for(let i=0;i<6;i++){if(e[i].distanceToPoint(n)<r)return!1}return!0}intersectsBox(t){const e=this.planes;for(let n=0;n<6;n++){const r=e[n];if(Ts.x=r.normal.x>0?t.max.x:t.min.x,Ts.y=r.normal.y>0?t.max.y:t.min.y,Ts.z=r.normal.z>0?t.max.z:t.min.z,r.distanceToPoint(Ts)<0)return!1}return!0}containsPoint(t){const e=this.planes;for(let n=0;n<6;n++)if(e[n].distanceToPoint(t)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function As(){let t=null,e=!1,n=null,r=null;function i(e,s){n(e,s),r=t.requestAnimationFrame(i)}return{start:function(){!0!==e&&null!==n&&(r=t.requestAnimationFrame(i),e=!0)},stop:function(){t.cancelAnimationFrame(r),e=!1},setAnimationLoop:function(t){n=t},setContext:function(e){t=e}}}function Ls(t,e){const n=e.isWebGL2,r=new WeakMap;return{get:function(t){return t.isInterleavedBufferAttribute&&(t=t.data),r.get(t)},remove:function(e){e.isInterleavedBufferAttribute&&(e=e.data);const n=r.get(e);n&&(t.deleteBuffer(n.buffer),r.delete(e))},update:function(e,i){if(e.isGLBufferAttribute){const t=r.get(e);return void((!t||t.version<e.version)&&r.set(e,{buffer:e.buffer,type:e.type,bytesPerElement:e.elementSize,version:e.version}))}e.isInterleavedBufferAttribute&&(e=e.data);const s=r.get(e);void 0===s?r.set(e,function(e,r){const i=e.array,s=e.usage,o=t.createBuffer();t.bindBuffer(r,o),t.bufferData(r,i,s),e.onUploadCallback();let a=5126;return i instanceof Float32Array?a=5126:i instanceof Float64Array?console.warn("THREE.WebGLAttributes: Unsupported data buffer format: Float64Array."):i instanceof Uint16Array?e.isFloat16BufferAttribute?n?a=5131:console.warn("THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2."):a=5123:i instanceof Int16Array?a=5122:i instanceof Uint32Array?a=5125:i instanceof Int32Array?a=5124:i instanceof Int8Array?a=5120:i instanceof Uint8Array&&(a=5121),{buffer:o,type:a,bytesPerElement:i.BYTES_PER_ELEMENT,version:e.version}}(e,i)):s.version<e.version&&(function(e,r,i){const s=r.array,o=r.updateRange;t.bindBuffer(i,e),-1===o.count?t.bufferSubData(i,0,s):(n?t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s,o.offset,o.count):t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s.subarray(o.offset,o.offset+o.count)),o.count=-1)}(s.buffer,e,i),s.version=e.version)}}}exports.Frustum=Es;class Rs extends ki{constructor(t=1,e=1,n=1,r=1){super(),this.type="PlaneGeometry",this.parameters={width:t,height:e,widthSegments:n,heightSegments:r};const i=t/2,s=e/2,o=Math.floor(n),a=Math.floor(r),l=o+1,c=a+1,h=t/o,u=e/a,p=[],d=[],m=[],f=[];for(let g=0;g<c;g++){const t=g*u-s;for(let e=0;e<l;e++){const n=e*h-i;d.push(n,-t,0),m.push(0,0,1),f.push(e/o),f.push(1-g/a)}}for(let g=0;g<a;g++)for(let t=0;t<o;t++){const e=t+l*g,n=t+l*(g+1),r=t+1+l*(g+1),i=t+1+l*g;p.push(e,n,i),p.push(n,r,i)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.PlaneGeometry=exports.PlaneBufferGeometry=Rs;var Cs="#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif",Ps="#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",Ds="#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif",Is="#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif",Bs="#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",Ns="vec3 transformed = vec3( position );",Fs="vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif",Os="vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif",zs="#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif",Gs="#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",Hs="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",Us="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",ks="#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",Vs="#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif",Ws="#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif",js="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",qs="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",Xs="#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}",Ys="#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",Zs="vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",Js="#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",Qs="#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif",Ks="#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",$s="#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",to="gl_FragColor = linearToOutputTexel( gl_FragColor );",eo="\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}",no="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",ro="#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",io="#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",so="#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",oo="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",ao="#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif",lo="#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif",co="#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",ho="#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",uo="#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}",po="#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif",mo="#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",fo="vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif",go="uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif",xo="#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif",vo="ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",yo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)",_o="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",bo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)",wo="PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif",Mo="struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",So="\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",To="#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif",Eo="#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",Ao="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",Lo="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",Ro="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",Co="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",Po="#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif",Do="#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",Io="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",Bo="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",No="float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",Fo="#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",Oo="#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif",zo="#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif",Go="#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif",Ho="float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;",Uo="#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",ko="#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif",Vo="#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",Wo="#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif",jo="#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif",qo="vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}",Xo="#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",Yo="vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",Zo="#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",Jo="#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",Qo="float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",Ko="#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",$o="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",ta="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",ea="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif",na="float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",ra="#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",ia="#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif",sa="#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",oa="#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",aa="float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",la="#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",ca="#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",ha="#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",ua="#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif",pa="#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif",da="#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif",ma="#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif",fa="#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif",ga="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif",xa="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif",va="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif",ya="#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",_a="uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",ba="varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",wa="#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ma="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",Sa="#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",Ta="#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}",Ea="#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",Aa="#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}",La="uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ra="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}",Ca="uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Pa="uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",Da="uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ia="#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}",Ba="uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Na="#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Fa="#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Oa="#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}",za="#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ga="#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ha="#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ua="#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",ka="#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Va="#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Wa="#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}",ja="#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",qa="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Xa="uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}",Ya="uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Za="#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ja="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Qa="uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";const Ka={alphamap_fragment:Cs,alphamap_pars_fragment:Ps,alphatest_fragment:Ds,aomap_fragment:Is,aomap_pars_fragment:Bs,begin_vertex:Ns,beginnormal_vertex:Fs,bsdfs:Os,bumpmap_pars_fragment:zs,clipping_planes_fragment:Gs,clipping_planes_pars_fragment:Hs,clipping_planes_pars_vertex:Us,clipping_planes_vertex:ks,color_fragment:Vs,color_pars_fragment:Ws,color_pars_vertex:js,color_vertex:qs,common:Xs,cube_uv_reflection_fragment:Ys,defaultnormal_vertex:Zs,displacementmap_pars_vertex:Js,displacementmap_vertex:Qs,emissivemap_fragment:Ks,emissivemap_pars_fragment:$s,encodings_fragment:to,encodings_pars_fragment:eo,envmap_fragment:no,envmap_common_pars_fragment:ro,envmap_pars_fragment:io,envmap_pars_vertex:so,envmap_physical_pars_fragment:xo,envmap_vertex:oo,fog_vertex:ao,fog_pars_vertex:lo,fog_fragment:co,fog_pars_fragment:ho,gradientmap_pars_fragment:uo,lightmap_fragment:po,lightmap_pars_fragment:mo,lights_lambert_vertex:fo,lights_pars_begin:go,lights_toon_fragment:vo,lights_toon_pars_fragment:yo,lights_phong_fragment:_o,lights_phong_pars_fragment:bo,lights_physical_fragment:wo,lights_physical_pars_fragment:Mo,lights_fragment_begin:So,lights_fragment_maps:To,lights_fragment_end:Eo,logdepthbuf_fragment:Ao,logdepthbuf_pars_fragment:Lo,logdepthbuf_pars_vertex:Ro,logdepthbuf_vertex:Co,map_fragment:Po,map_pars_fragment:Do,map_particle_fragment:Io,map_particle_pars_fragment:Bo,metalnessmap_fragment:No,metalnessmap_pars_fragment:Fo,morphnormal_vertex:Oo,morphtarget_pars_vertex:zo,morphtarget_vertex:Go,normal_fragment_begin:Ho,normal_fragment_maps:Uo,normalmap_pars_fragment:ko,clearcoat_normal_fragment_begin:Vo,clearcoat_normal_fragment_maps:Wo,clearcoat_pars_fragment:jo,packing:qo,premultiplied_alpha_fragment:Xo,project_vertex:Yo,dithering_fragment:Zo,dithering_pars_fragment:Jo,roughnessmap_fragment:Qo,roughnessmap_pars_fragment:Ko,shadowmap_pars_fragment:$o,shadowmap_pars_vertex:ta,shadowmap_vertex:ea,shadowmask_pars_fragment:na,skinbase_vertex:ra,skinning_pars_vertex:ia,skinning_vertex:sa,skinnormal_vertex:oa,specularmap_fragment:aa,specularmap_pars_fragment:la,tonemapping_fragment:ca,tonemapping_pars_fragment:ha,transmissionmap_fragment:ua,transmissionmap_pars_fragment:pa,uv_pars_fragment:da,uv_pars_vertex:ma,uv_vertex:fa,uv2_pars_fragment:ga,uv2_pars_vertex:xa,uv2_vertex:va,worldpos_vertex:ya,background_frag:_a,background_vert:ba,cube_frag:wa,cube_vert:Ma,depth_frag:Sa,depth_vert:Ta,distanceRGBA_frag:Ea,distanceRGBA_vert:Aa,equirect_frag:La,equirect_vert:Ra,linedashed_frag:Ca,linedashed_vert:Pa,meshbasic_frag:Da,meshbasic_vert:Ia,meshlambert_frag:Ba,meshlambert_vert:Na,meshmatcap_frag:Fa,meshmatcap_vert:Oa,meshtoon_frag:za,meshtoon_vert:Ga,meshphong_frag:Ha,meshphong_vert:Ua,meshphysical_frag:ka,meshphysical_vert:Va,normal_frag:Wa,normal_vert:ja,points_frag:qa,points_vert:Xa,shadow_frag:Ya,shadow_vert:Za,sprite_frag:Ja,sprite_vert:Qa};exports.ShaderChunk=Ka;const $a={common:{diffuse:{value:new xi(15658734)},opacity:{value:1},map:{value:null},uvTransform:{value:new zn},uv2Transform:{value:new zn},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98},maxMipLevel:{value:0}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new On(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new xi(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new xi(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}},sprite:{diffuse:{value:new xi(15658734)},opacity:{value:1},center:{value:new On(.5,.5)},rotation:{value:0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}}};exports.UniformsLib=$a;const tl={basic:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.fog]),vertexShader:Ka.meshbasic_vert,fragmentShader:Ka.meshbasic_frag},lambert:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshlambert_vert,fragmentShader:Ka.meshlambert_frag},phong:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},specular:{value:new xi(1118481)},shininess:{value:30}}]),vertexShader:Ka.meshphong_vert,fragmentShader:Ka.meshphong_frag},standard:{uniforms:us([$a.common,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.roughnessmap,$a.metalnessmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag},toon:{uniforms:us([$a.common,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.gradientmap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshtoon_vert,fragmentShader:Ka.meshtoon_frag},matcap:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,{matcap:{value:null}}]),vertexShader:Ka.meshmatcap_vert,fragmentShader:Ka.meshmatcap_frag},points:{uniforms:us([$a.points,$a.fog]),vertexShader:Ka.points_vert,fragmentShader:Ka.points_frag},dashed:{uniforms:us([$a.common,$a.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:Ka.linedashed_vert,fragmentShader:Ka.linedashed_frag},depth:{uniforms:us([$a.common,$a.displacementmap]),vertexShader:Ka.depth_vert,fragmentShader:Ka.depth_frag},normal:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,{opacity:{value:1}}]),vertexShader:Ka.normal_vert,fragmentShader:Ka.normal_frag},sprite:{uniforms:us([$a.sprite,$a.fog]),vertexShader:Ka.sprite_vert,fragmentShader:Ka.sprite_frag},background:{uniforms:{uvTransform:{value:new zn},t2D:{value:null}},vertexShader:Ka.background_vert,fragmentShader:Ka.background_frag},cube:{uniforms:us([$a.envmap,{opacity:{value:1}}]),vertexShader:Ka.cube_vert,fragmentShader:Ka.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:Ka.equirect_vert,fragmentShader:Ka.equirect_frag},distanceRGBA:{uniforms:us([$a.common,$a.displacementmap,{referencePosition:{value:new Yn},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:Ka.distanceRGBA_vert,fragmentShader:Ka.distanceRGBA_frag},shadow:{uniforms:us([$a.lights,$a.fog,{color:{value:new xi(0)},opacity:{value:1}}]),vertexShader:Ka.shadow_vert,fragmentShader:Ka.shadow_frag}};function el(t,e,n,r,i){const s=new xi(0);let o,a,l=0,c=null,h=0,d=null;function m(t,e){n.buffers.color.setClear(t.r,t.g,t.b,e,i)}return{getClearColor:function(){return s},setClearColor:function(t,e=1){s.set(t),m(s,l=e)},getClearAlpha:function(){return l},setClearAlpha:function(t){m(s,l=t)},render:function(n,i,f,g){let x=!0===i.isScene?i.background:null;x&&x.isTexture&&(x=e.get(x));const v=t.xr,y=v.getSession&&v.getSession();y&&"additive"===y.environmentBlendMode&&(x=null),null===x?m(s,l):x&&x.isColor&&(m(x,1),g=!0),(t.autoClear||g)&&t.clear(t.autoClearColor,t.autoClearDepth,t.autoClearStencil),x&&(x.isCubeTexture||x.isWebGLCubeRenderTarget||x.mapping===ot)?(void 0===a&&((a=new os(new cs(1,1,1),new fs({name:"BackgroundCubeMaterial",uniforms:hs(tl.cube.uniforms),vertexShader:tl.cube.vertexShader,fragmentShader:tl.cube.fragmentShader,side:p,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),a.geometry.deleteAttribute("uv"),a.onBeforeRender=function(t,e,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(a.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(a)),x.isWebGLCubeRenderTarget&&(x=x.texture),a.material.uniforms.envMap.value=x,a.material.uniforms.flipEnvMap.value=x.isCubeTexture&&x._needsFlipEnvMap?-1:1,c===x&&h===x.version&&d===t.toneMapping||(a.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(a,a.geometry,a.material,0,0,null)):x&&x.isTexture&&(void 0===o&&((o=new os(new Rs(2,2),new fs({name:"BackgroundMaterial",uniforms:hs(tl.background.uniforms),vertexShader:tl.background.vertexShader,fragmentShader:tl.background.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),Object.defineProperty(o.material,"map",{get:function(){return this.uniforms.t2D.value}}),r.update(o)),o.material.uniforms.t2D.value=x,!0===x.matrixAutoUpdate&&x.updateMatrix(),o.material.uniforms.uvTransform.value.copy(x.matrix),c===x&&h===x.version&&d===t.toneMapping||(o.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(o,o.geometry,o.material,0,0,null))}}}function nl(t,e,n,r){const i=t.getParameter(34921),s=r.isWebGL2?null:e.get("OES_vertex_array_object"),o=r.isWebGL2||null!==s,a={},l=p(null);let c=l;function h(e){return r.isWebGL2?t.bindVertexArray(e):s.bindVertexArrayOES(e)}function u(e){return r.isWebGL2?t.deleteVertexArray(e):s.deleteVertexArrayOES(e)}function p(t){const e=[],n=[],r=[];for(let s=0;s<i;s++)e[s]=0,n[s]=0,r[s]=0;return{geometry:null,program:null,wireframe:!1,newAttributes:e,enabledAttributes:n,attributeDivisors:r,object:t,attributes:{},index:null}}function d(){const t=c.newAttributes;for(let e=0,n=t.length;e<n;e++)t[e]=0}function m(t){f(t,0)}function f(n,i){const s=c.newAttributes,o=c.enabledAttributes,a=c.attributeDivisors;if(s[n]=1,0===o[n]&&(t.enableVertexAttribArray(n),o[n]=1),a[n]!==i){(r.isWebGL2?t:e.get("ANGLE_instanced_arrays"))[r.isWebGL2?"vertexAttribDivisor":"vertexAttribDivisorANGLE"](n,i),a[n]=i}}function g(){const e=c.newAttributes,n=c.enabledAttributes;for(let r=0,i=n.length;r<i;r++)n[r]!==e[r]&&(t.disableVertexAttribArray(r),n[r]=0)}function x(e,n,i,s,o,a){!0!==r.isWebGL2||5124!==i&&5125!==i?t.vertexAttribPointer(e,n,i,s,o,a):t.vertexAttribIPointer(e,n,i,o,a)}function v(){y(),c!==l&&h((c=l).object)}function y(){l.geometry=null,l.program=null,l.wireframe=!1}return{setup:function(i,l,u,v,y){let _=!1;if(o){const e=function(e,n,i){const o=!0===i.wireframe;let l=a[e.id];void 0===l&&(l={},a[e.id]=l);let c=l[n.id];void 0===c&&(c={},l[n.id]=c);let h=c[o];return void 0===h&&(h=p(r.isWebGL2?t.createVertexArray():s.createVertexArrayOES()),c[o]=h),h}(v,u,l);c!==e&&h((c=e).object),(_=function(t,e){const n=c.attributes,r=t.attributes;let i=0;for(const s in r){const t=n[s],e=r[s];if(void 0===t)return!0;if(t.attribute!==e)return!0;if(t.data!==e.data)return!0;i++}return c.attributesNum!==i||c.index!==e}(v,y))&&function(t,e){const n={},r=t.attributes;let i=0;for(const s in r){const t=r[s],e={};e.attribute=t,t.data&&(e.data=t.data),n[s]=e,i++}c.attributes=n,c.attributesNum=i,c.index=e}(v,y)}else{const t=!0===l.wireframe;c.geometry===v.id&&c.program===u.id&&c.wireframe===t||(c.geometry=v.id,c.program=u.id,c.wireframe=t,_=!0)}!0===i.isInstancedMesh&&(_=!0),null!==y&&n.update(y,34963),_&&(function(i,s,o,a){if(!1===r.isWebGL2&&(i.isInstancedMesh||a.isInstancedBufferGeometry)&&null===e.get("ANGLE_instanced_arrays"))return;d();const l=a.attributes,c=o.getAttributes(),h=s.defaultAttributeValues;for(const e in c){const r=c[e];if(r>=0){const s=l[e];if(void 0!==s){const e=s.normalized,i=s.itemSize,o=n.get(s);if(void 0===o)continue;const l=o.buffer,c=o.type,h=o.bytesPerElement;if(s.isInterleavedBufferAttribute){const n=s.data,o=n.stride,u=s.offset;n&&n.isInstancedInterleavedBuffer?(f(r,n.meshPerAttribute),void 0===a._maxInstanceCount&&(a._maxInstanceCount=n.meshPerAttribute*n.count)):m(r),t.bindBuffer(34962,l),x(r,i,c,e,o*h,u*h)}else s.isInstancedBufferAttribute?(f(r,s.meshPerAttribute),void 0===a._maxInstanceCount&&(a._maxInstanceCount=s.meshPerAttribute*s.count)):m(r),t.bindBuffer(34962,l),x(r,i,c,e,0,0)}else if("instanceMatrix"===e){const e=n.get(i.instanceMatrix);if(void 0===e)continue;const s=e.buffer,o=e.type;f(r+0,1),f(r+1,1),f(r+2,1),f(r+3,1),t.bindBuffer(34962,s),t.vertexAttribPointer(r+0,4,o,!1,64,0),t.vertexAttribPointer(r+1,4,o,!1,64,16),t.vertexAttribPointer(r+2,4,o,!1,64,32),t.vertexAttribPointer(r+3,4,o,!1,64,48)}else if("instanceColor"===e){const e=n.get(i.instanceColor);if(void 0===e)continue;const s=e.buffer,o=e.type;f(r,1),t.bindBuffer(34962,s),t.vertexAttribPointer(r,3,o,!1,12,0)}else if(void 0!==h){const n=h[e];if(void 0!==n)switch(n.length){case 2:t.vertexAttrib2fv(r,n);break;case 3:t.vertexAttrib3fv(r,n);break;case 4:t.vertexAttrib4fv(r,n);break;default:t.vertexAttrib1fv(r,n)}}}}g()}(i,l,u,v),null!==y&&t.bindBuffer(34963,n.get(y).buffer))},reset:v,resetDefaultState:y,dispose:function(){v();for(const t in a){const e=a[t];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete a[t]}},releaseStatesOfGeometry:function(t){if(void 0===a[t.id])return;const e=a[t.id];for(const n in e){const t=e[n];for(const e in t)u(t[e].object),delete t[e];delete e[n]}delete a[t.id]},releaseStatesOfProgram:function(t){for(const e in a){const n=a[e];if(void 0===n[t.id])continue;const r=n[t.id];for(const t in r)u(r[t].object),delete r[t];delete n[t.id]}},initAttributes:d,enableAttribute:m,disableUnusedAttributes:g}}function rl(t,e,n,r){const i=r.isWebGL2;let s;this.setMode=function(t){s=t},this.render=function(e,r){t.drawArrays(s,e,r),n.update(r,s,1)},this.renderInstances=function(r,o,a){if(0===a)return;let l,c;if(i)l=t,c="drawArraysInstanced";else if(c="drawArraysInstancedANGLE",null===(l=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");l[c](s,r,o,a),n.update(o,s,a)}}function il(t,e,n){let r;function i(e){if("highp"===e){if(t.getShaderPrecisionFormat(35633,36338).precision>0&&t.getShaderPrecisionFormat(35632,36338).precision>0)return"highp";e="mediump"}return"mediump"===e&&t.getShaderPrecisionFormat(35633,36337).precision>0&&t.getShaderPrecisionFormat(35632,36337).precision>0?"mediump":"lowp"}const s="undefined"!=typeof WebGL2RenderingContext&&t instanceof WebGL2RenderingContext||"undefined"!=typeof WebGL2ComputeRenderingContext&&t instanceof WebGL2ComputeRenderingContext;let o=void 0!==n.precision?n.precision:"highp";const a=i(o);a!==o&&(console.warn("THREE.WebGLRenderer:",o,"not supported, using",a,"instead."),o=a);const l=!0===n.logarithmicDepthBuffer,c=t.getParameter(34930),h=t.getParameter(35660),u=t.getParameter(3379),p=t.getParameter(34076),d=t.getParameter(34921),m=t.getParameter(36347),f=t.getParameter(36348),g=t.getParameter(36349),x=h>0,v=s||e.has("OES_texture_float");return{isWebGL2:s,getMaxAnisotropy:function(){if(void 0!==r)return r;if(!0===e.has("EXT_texture_filter_anisotropic")){const n=e.get("EXT_texture_filter_anisotropic");r=t.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else r=0;return r},getMaxPrecision:i,precision:o,logarithmicDepthBuffer:l,maxTextures:c,maxVertexTextures:h,maxTextureSize:u,maxCubemapSize:p,maxAttributes:d,maxVertexUniforms:m,maxVaryings:f,maxFragmentUniforms:g,vertexTextures:x,floatFragmentTextures:v,floatVertexTextures:x&&v,maxSamples:s?t.getParameter(36183):0}}function sl(t){const e=this;let n=null,r=0,i=!1,s=!1;const o=new Qr,a=new zn,l={value:null,needsUpdate:!1};function c(){l.value!==n&&(l.value=n,l.needsUpdate=r>0),e.numPlanes=r,e.numIntersection=0}function h(t,n,r,i){const s=null!==t?t.length:0;let c=null;if(0!==s){if(c=l.value,!0!==i||null===c){const e=r+4*s,i=n.matrixWorldInverse;a.getNormalMatrix(i),(null===c||c.length<e)&&(c=new Float32Array(e));for(let n=0,l=r;n!==s;++n,l+=4)o.copy(t[n]).applyMatrix4(i,a),o.normal.toArray(c,l),c[l+3]=o.constant}l.value=c,l.needsUpdate=!0}return e.numPlanes=s,e.numIntersection=0,c}this.uniform=l,this.numPlanes=0,this.numIntersection=0,this.init=function(t,e,s){const o=0!==t.length||e||0!==r||i;return i=e,n=h(t,s,0),r=t.length,o},this.beginShadows=function(){s=!0,h(null)},this.endShadows=function(){s=!1,c()},this.setState=function(e,o,a){const u=e.clippingPlanes,p=e.clipIntersection,d=e.clipShadows,m=t.get(e);if(!i||null===u||0===u.length||s&&!d)s?h(null):c();else{const t=s?0:r,e=4*t;let i=m.clippingState||null;l.value=i,i=h(u,o,e,a);for(let r=0;r!==e;++r)i[r]=n[r];m.clippingState=i,this.numIntersection=p?this.numPlanes:0,this.numPlanes+=t}}}function ol(t){let e=new WeakMap;function n(t,e){return e===it?t.mapping=nt:e===st&&(t.mapping=rt),t}function r(t){const n=t.target;n.removeEventListener("dispose",r);const i=e.get(n);void 0!==i&&(e.delete(n),i.dispose())}return{get:function(i){if(i&&i.isTexture){const s=i.mapping;if(s===it||s===st){if(e.has(i))return n(e.get(i).texture,i.mapping);{const s=i.image;if(s&&s.height>0){const o=t.getRenderTarget(),a=new ws(s.height/2);return a.fromEquirectangularTexture(t,i),e.set(i,a),t.setRenderTarget(o),i.addEventListener("dispose",r),n(a.texture,i.mapping)}return null}}}return i},dispose:function(){e=new WeakMap}}}function al(t){const e={};function n(n){if(void 0!==e[n])return e[n];let r;switch(n){case"WEBGL_depth_texture":r=t.getExtension("WEBGL_depth_texture")||t.getExtension("MOZ_WEBGL_depth_texture")||t.getExtension("WEBKIT_WEBGL_depth_texture");break;case"EXT_texture_filter_anisotropic":r=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case"WEBGL_compressed_texture_s3tc":r=t.getExtension("WEBGL_compressed_texture_s3tc")||t.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case"WEBGL_compressed_texture_pvrtc":r=t.getExtension("WEBGL_compressed_texture_pvrtc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:r=t.getExtension(n)}return e[n]=r,r}return{has:function(t){return null!==n(t)},init:function(t){t.isWebGL2?n("EXT_color_buffer_float"):(n("WEBGL_depth_texture"),n("OES_texture_float"),n("OES_texture_half_float"),n("OES_texture_half_float_linear"),n("OES_standard_derivatives"),n("OES_element_index_uint"),n("OES_vertex_array_object"),n("ANGLE_instanced_arrays")),n("OES_texture_float_linear"),n("EXT_color_buffer_half_float")},get:function(t){const e=n(t);return null===e&&console.warn("THREE.WebGLRenderer: "+t+" extension not supported."),e}}}function ll(t,e,n,r){const i={},s=new WeakMap;function o(t){const a=t.target;null!==a.index&&e.remove(a.index);for(const n in a.attributes)e.remove(a.attributes[n]);a.removeEventListener("dispose",o),delete i[a.id];const l=s.get(a);l&&(e.remove(l),s.delete(a)),r.releaseStatesOfGeometry(a),!0===a.isInstancedBufferGeometry&&delete a._maxInstanceCount,n.memory.geometries--}function a(t){const n=[],r=t.index,i=t.attributes.position;let o=0;if(null!==r){const t=r.array;o=r.version;for(let e=0,r=t.length;e<r;e+=3){const r=t[e+0],i=t[e+1],s=t[e+2];n.push(r,i,i,s,s,r)}}else{const t=i.array;o=i.version;for(let e=0,r=t.length/3-1;e<r;e+=3){const t=e+0,r=e+1,i=e+2;n.push(t,r,r,i,i,t)}}const a=new(Di(n)>65535?Li:Ei)(n,1);a.version=o;const l=s.get(t);l&&e.remove(l),s.set(t,a)}return{get:function(t,e){return!0===i[e.id]?e:(e.addEventListener("dispose",o),i[e.id]=!0,n.memory.geometries++,e)},update:function(t){const n=t.attributes;for(const i in n)e.update(n[i],34962);const r=t.morphAttributes;for(const i in r){const t=r[i];for(let n=0,r=t.length;n<r;n++)e.update(t[n],34962)}},getWireframeAttribute:function(t){const e=s.get(t);if(e){const n=t.index;null!==n&&e.version<n.version&&a(t)}else a(t);return s.get(t)}}}function cl(t,e,n,r){const i=r.isWebGL2;let s,o,a;this.setMode=function(t){s=t},this.setIndex=function(t){o=t.type,a=t.bytesPerElement},this.render=function(e,r){t.drawElements(s,r,o,e*a),n.update(r,s,1)},this.renderInstances=function(r,l,c){if(0===c)return;let h,u;if(i)h=t,u="drawElementsInstanced";else if(u="drawElementsInstancedANGLE",null===(h=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");h[u](s,l,o,r*a,c),n.update(l,s,c)}}function hl(t){const e={frame:0,calls:0,triangles:0,points:0,lines:0};return{memory:{geometries:0,textures:0},render:e,programs:null,autoReset:!0,reset:function(){e.frame++,e.calls=0,e.triangles=0,e.points=0,e.lines=0},update:function(t,n,r){switch(e.calls++,n){case 4:e.triangles+=r*(t/3);break;case 1:e.lines+=r*(t/2);break;case 3:e.lines+=r*(t-1);break;case 2:e.lines+=r*t;break;case 0:e.points+=r*t;break;default:console.error("THREE.WebGLInfo: Unknown draw mode:",n)}}}}function ul(t,e){return t[0]-e[0]}function pl(t,e){return Math.abs(e[1])-Math.abs(t[1])}function dl(t){const e={},n=new Float32Array(8),r=[];for(let i=0;i<8;i++)r[i]=[i,0];return{update:function(i,s,o,a){const l=i.morphTargetInfluences,c=void 0===l?0:l.length;let h=e[s.id];if(void 0===h){h=[];for(let t=0;t<c;t++)h[t]=[t,0];e[s.id]=h}for(let t=0;t<c;t++){const e=h[t];e[0]=t,e[1]=l[t]}h.sort(pl);for(let t=0;t<8;t++)t<c&&h[t][1]?(r[t][0]=h[t][0],r[t][1]=h[t][1]):(r[t][0]=Number.MAX_SAFE_INTEGER,r[t][1]=0);r.sort(ul);const u=o.morphTargets&&s.morphAttributes.position,p=o.morphNormals&&s.morphAttributes.normal;let d=0;for(let t=0;t<8;t++){const e=r[t],i=e[0],o=e[1];i!==Number.MAX_SAFE_INTEGER&&o?(u&&s.getAttribute("morphTarget"+t)!==u[i]&&s.setAttribute("morphTarget"+t,u[i]),p&&s.getAttribute("morphNormal"+t)!==p[i]&&s.setAttribute("morphNormal"+t,p[i]),n[t]=o,d+=o):(u&&!0===s.hasAttribute("morphTarget"+t)&&s.deleteAttribute("morphTarget"+t),p&&!0===s.hasAttribute("morphNormal"+t)&&s.deleteAttribute("morphNormal"+t),n[t]=0)}const m=s.morphTargetsRelative?1:1-d;a.getUniforms().setValue(t,"morphTargetBaseInfluence",m),a.getUniforms().setValue(t,"morphTargetInfluences",n)}}}function ml(t,e,n,r){let i=new WeakMap;function s(t){const e=t.target;e.removeEventListener("dispose",s),n.remove(e.instanceMatrix),null!==e.instanceColor&&n.remove(e.instanceColor)}return{update:function(t){const o=r.render.frame,a=t.geometry,l=e.get(t,a);return i.get(l)!==o&&(e.update(l),i.set(l,o)),t.isInstancedMesh&&(!1===t.hasEventListener("dispose",s)&&t.addEventListener("dispose",s),n.update(t.instanceMatrix,34962),null!==t.instanceColor&&n.update(t.instanceColor,34962)),l},dispose:function(){i=new WeakMap}}}exports.ShaderLib=tl,tl.physical={uniforms:us([tl.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatNormalScale:{value:new On(1,1)},clearcoatNormalMap:{value:null},sheen:{value:new xi(0)},transmission:{value:0},transmissionMap:{value:null}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag};class fl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture2DArray=fl,fl.prototype.isDataTexture2DArray=!0;class gl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture3D=gl,gl.prototype.isDataTexture3D=!0;const xl=new kn,vl=new fl,yl=new gl,_l=new bs,bl=[],wl=[],Ml=new Float32Array(16),Sl=new Float32Array(9),Tl=new Float32Array(4);function El(t,e,n){const r=t[0];if(r<=0||r>0)return t;const i=e*n;let s=bl[i];if(void 0===s&&(s=new Float32Array(i),bl[i]=s),0!==e){r.toArray(s,0);for(let r=1,i=0;r!==e;++r)i+=n,t[r].toArray(s,i)}return s}function Al(t,e){if(t.length!==e.length)return!1;for(let n=0,r=t.length;n<r;n++)if(t[n]!==e[n])return!1;return!0}function Ll(t,e){for(let n=0,r=e.length;n<r;n++)t[n]=e[n]}function Rl(t,e){let n=wl[e];void 0===n&&(n=new Int32Array(e),wl[e]=n);for(let r=0;r!==e;++r)n[r]=t.allocateTextureUnit();return n}function Cl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1f(this.addr,e),n[0]=e)}function Pl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y||(t.uniform2f(this.addr,e.x,e.y),n[0]=e.x,n[1]=e.y);else{if(Al(n,e))return;t.uniform2fv(this.addr,e),Ll(n,e)}}function Dl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z||(t.uniform3f(this.addr,e.x,e.y,e.z),n[0]=e.x,n[1]=e.y,n[2]=e.z);else if(void 0!==e.r)n[0]===e.r&&n[1]===e.g&&n[2]===e.b||(t.uniform3f(this.addr,e.r,e.g,e.b),n[0]=e.r,n[1]=e.g,n[2]=e.b);else{if(Al(n,e))return;t.uniform3fv(this.addr,e),Ll(n,e)}}function Il(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z&&n[3]===e.w||(t.uniform4f(this.addr,e.x,e.y,e.z,e.w),n[0]=e.x,n[1]=e.y,n[2]=e.z,n[3]=e.w);else{if(Al(n,e))return;t.uniform4fv(this.addr,e),Ll(n,e)}}function Bl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix2fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Tl.set(r),t.uniformMatrix2fv(this.addr,!1,Tl),Ll(n,r)}}function Nl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix3fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Sl.set(r),t.uniformMatrix3fv(this.addr,!1,Sl),Ll(n,r)}}function Fl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix4fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Ml.set(r),t.uniformMatrix4fv(this.addr,!1,Ml),Ll(n,r)}}function Ol(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTexture2D(e||xl,i)}function zl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture2DArray(e||vl,i)}function Gl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture3D(e||yl,i)}function Hl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTextureCube(e||_l,i)}function Ul(t,e){const n=this.cache;n[0]!==e&&(t.uniform1i(this.addr,e),n[0]=e)}function kl(t,e){const n=this.cache;Al(n,e)||(t.uniform2iv(this.addr,e),Ll(n,e))}function Vl(t,e){const n=this.cache;Al(n,e)||(t.uniform3iv(this.addr,e),Ll(n,e))}function Wl(t,e){const n=this.cache;Al(n,e)||(t.uniform4iv(this.addr,e),Ll(n,e))}function jl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1ui(this.addr,e),n[0]=e)}function ql(t){switch(t){case 5126:return Cl;case 35664:return Pl;case 35665:return Dl;case 35666:return Il;case 35674:return Bl;case 35675:return Nl;case 35676:return Fl;case 5124:case 35670:return Ul;case 35667:case 35671:return kl;case 35668:case 35672:return Vl;case 35669:case 35673:return Wl;case 5125:return jl;case 35678:case 36198:case 36298:case 36306:case 35682:return Ol;case 35679:case 36299:case 36307:return Gl;case 35680:case 36300:case 36308:case 36293:return Hl;case 36289:case 36303:case 36311:case 36292:return zl}}function Xl(t,e){t.uniform1fv(this.addr,e)}function Yl(t,e){t.uniform1iv(this.addr,e)}function Zl(t,e){t.uniform2iv(this.addr,e)}function Jl(t,e){t.uniform3iv(this.addr,e)}function Ql(t,e){t.uniform4iv(this.addr,e)}function Kl(t,e){const n=El(e,this.size,2);t.uniform2fv(this.addr,n)}function $l(t,e){const n=El(e,this.size,3);t.uniform3fv(this.addr,n)}function tc(t,e){const n=El(e,this.size,4);t.uniform4fv(this.addr,n)}function ec(t,e){const n=El(e,this.size,4);t.uniformMatrix2fv(this.addr,!1,n)}function nc(t,e){const n=El(e,this.size,9);t.uniformMatrix3fv(this.addr,!1,n)}function rc(t,e){const n=El(e,this.size,16);t.uniformMatrix4fv(this.addr,!1,n)}function ic(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTexture2D(e[s]||xl,i[s])}function sc(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTextureCube(e[s]||_l,i[s])}function oc(t){switch(t){case 5126:return Xl;case 35664:return Kl;case 35665:return $l;case 35666:return tc;case 35674:return ec;case 35675:return nc;case 35676:return rc;case 5124:case 35670:return Yl;case 35667:case 35671:return Zl;case 35668:case 35672:return Jl;case 35669:case 35673:return Ql;case 35678:case 36198:case 36298:case 36306:case 35682:return ic;case 35680:case 36300:case 36308:case 36293:return sc}}function ac(t,e,n){this.id=t,this.addr=n,this.cache=[],this.setValue=ql(e.type)}function lc(t,e,n){this.id=t,this.addr=n,this.cache=[],this.size=e.size,this.setValue=oc(e.type)}function cc(t){this.id=t,this.seq=[],this.map={}}lc.prototype.updateCache=function(t){const e=this.cache;t instanceof Float32Array&&e.length!==t.length&&(this.cache=new Float32Array(t.length)),Ll(e,t)},cc.prototype.setValue=function(t,e,n){const r=this.seq;for(let i=0,s=r.length;i!==s;++i){const s=r[i];s.setValue(t,e[s.id],n)}};const hc=/(\w+)(\])?(\[|\.)?/g;function uc(t,e){t.seq.push(e),t.map[e.id]=e}function pc(t,e,n){const r=t.name,i=r.length;for(hc.lastIndex=0;;){const s=hc.exec(r),o=hc.lastIndex;let a=s[1];const l="]"===s[2],c=s[3];if(l&&(a|=0),void 0===c||"["===c&&o+2===i){uc(n,void 0===c?new ac(a,t,e):new lc(a,t,e));break}{let t=n.map[a];void 0===t&&uc(n,t=new cc(a)),n=t}}}function dc(t,e){this.seq=[],this.map={};const n=t.getProgramParameter(e,35718);for(let r=0;r<n;++r){const n=t.getActiveUniform(e,r);pc(n,t.getUniformLocation(e,n.name),this)}}function mc(t,e,n){const r=t.createShader(e);return t.shaderSource(r,n),t.compileShader(r),r}dc.prototype.setValue=function(t,e,n,r){const i=this.map[e];void 0!==i&&i.setValue(t,n,r)},dc.prototype.setOptional=function(t,e,n){const r=e[n];void 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DITHERING":"",Ka.encodings_pars_fragment,n.map?yc("mapTexelToLinear",n.mapEncoding):"",n.matcap?yc("matcapTexelToLinear",n.matcapEncoding):"",n.envMap?yc("envMapTexelToLinear",n.envMapEncoding):"",n.emissiveMap?yc("emissiveMapTexelToLinear",n.emissiveMapEncoding):"",n.lightMap?yc("lightMapTexelToLinear",n.lightMapEncoding):"",_c("linearToOutputTexel",n.outputEncoding),n.depthPacking?"#define DEPTH_PACKING "+n.depthPacking:"","\n"].filter(Tc).join("\n")),o=Ac(o=Ec(o=Rc(o),n),n),a=Ac(a=Ec(a=Rc(a),n),n),o=Ic(o),a=Ic(a),n.isWebGL2&&!0!==n.isRawShaderMaterial&&(v="#version 300 es\n",g=["#define attribute in","#define varying out","#define texture2D texture"].join("\n")+"\n"+g,x=["#define varying in",n.glslVersion===Dn?"":"out highp vec4 pc_fragColor;",n.glslVersion===Dn?"":"#define gl_FragColor pc_fragColor","#define gl_FragDepthEXT gl_FragDepth","#define texture2D texture","#define textureCube texture","#define texture2DProj textureProj","#define texture2DLodEXT textureLod","#define texture2DProjLodEXT textureProjLod","#define textureCubeLodEXT textureLod","#define texture2DGradEXT textureGrad","#define texture2DProjGradEXT textureProjGrad","#define textureCubeGradEXT textureGrad"].join("\n")+"\n"+x);const y=v+x+a,_=mc(i,35633,v+g+o),b=mc(i,35632,y);if(i.attachShader(f,_),i.attachShader(f,b),void 0!==n.index0AttributeName?i.bindAttribLocation(f,0,n.index0AttributeName):!0===n.morphTargets&&i.bindAttribLocation(f,0,"position"),i.linkProgram(f),t.debug.checkShaderErrors){const t=i.getProgramInfoLog(f).trim(),e=i.getShaderInfoLog(_).trim(),n=i.getShaderInfoLog(b).trim();let r=!0,s=!0;if(!1===i.getProgramParameter(f,35714)){r=!1;const e=vc(i,_,"vertex"),n=vc(i,b,"fragment");console.error("THREE.WebGLProgram: shader error: ",i.getError(),"35715",i.getProgramParameter(f,35715),"gl.getProgramInfoLog",t,e,n)}else""!==t?console.warn("THREE.WebGLProgram: 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f={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",MeshPhongMaterial:"phong",MeshToonMaterial:"toon",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",MeshMatcapMaterial:"matcap",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow",SpriteMaterial:"sprite"},g=["precision","isWebGL2","supportsVertexTextures","outputEncoding","instancing","instancingColor","map","mapEncoding","matcap","matcapEncoding","envMap","envMapMode","envMapEncoding","envMapCubeUV","lightMap","lightMapEncoding","aoMap","emissiveMap","emissiveMapEncoding","bumpMap","normalMap","objectSpaceNormalMap","tangentSpaceNormalMap","clearcoatMap","clearcoatRoughnessMap","clearcoatNormalMap","displacementMap","specularMap","roughnessMap","metalnessMap","gradientMap","alphaMap","combine","vertexColors","vertexTangents","vertexUvs","uvsVertexOnly","fog","useFog","fogExp2","flatShading","sizeAttenuation","logarithmicDepthBuffer","skinning","maxBones","useVertexTexture","morphTargets","morphNormals","maxMorphTargets","maxMorphNormals","premultipliedAlpha","numDirLights","numPointLights","numSpotLights","numHemiLights","numRectAreaLights","numDirLightShadows","numPointLightShadows","numSpotLightShadows","shadowMapEnabled","shadowMapType","toneMapping","physicallyCorrectLights","alphaTest","doubleSided","flipSided","numClippingPlanes","numClipIntersection","depthPacking","dithering","sheen","transmissionMap"];function x(t){let e;return t&&t.isTexture?e=t.encoding:t&&t.isWebGLRenderTarget?(console.warn("THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead."),e=t.texture.encoding):e=Xe,e}return{getParameters:function(i,o,g,v,y){const _=v.fog,b=i.isMeshStandardMaterial?v.environment:null,w=e.get(i.envMap||b),M=f[i.type],S=y.isSkinnedMesh?function(t){const e=t.skeleton.bones;if(c)return 1024;{const t=h,n=Math.floor((t-20)/4),r=Math.min(n,e.length);return r<e.length?(console.warn("THREE.WebGLRenderer: Skeleton has "+e.length+" bones. This GPU supports "+r+"."),0):r}}(y):0;let T,E;if(null!==i.precision&&(m=r.getMaxPrecision(i.precision))!==i.precision&&console.warn("THREE.WebGLProgram.getParameters:",i.precision,"not supported, using",m,"instead."),M){const t=tl[M];T=t.vertexShader,E=t.fragmentShader}else T=i.vertexShader,E=i.fragmentShader;const A=t.getRenderTarget();return{isWebGL2:a,shaderID:M,shaderName:i.type,vertexShader:T,fragmentShader:E,defines:i.defines,isRawShaderMaterial:!0===i.isRawShaderMaterial,glslVersion:i.glslVersion,precision:m,instancing:!0===y.isInstancedMesh,instancingColor:!0===y.isInstancedMesh&&null!==y.instanceColor,supportsVertexTextures:u,outputEncoding:null!==A?x(A.texture):t.outputEncoding,map:!!i.map,mapEncoding:x(i.map),matcap:!!i.matcap,matcapEncoding:x(i.matcap),envMap:!!w,envMapMode:w&&w.mapping,envMapEncoding:x(w),envMapCubeUV:!!w&&(w.mapping===ot||w.mapping===at),lightMap:!!i.lightMap,lightMapEncoding:x(i.lightMap),aoMap:!!i.aoMap,emissiveMap:!!i.emissiveMap,emissiveMapEncoding:x(i.emissiveMap),bumpMap:!!i.bumpMap,normalMap:!!i.normalMap,objectSpaceNormalMap:i.normalMapType===sn,tangentSpaceNormalMap:i.normalMapType===rn,clearcoatMap:!!i.clearcoatMap,clearcoatRoughnessMap:!!i.clearcoatRoughnessMap,clearcoatNormalMap:!!i.clearcoatNormalMap,displacementMap:!!i.displacementMap,roughnessMap:!!i.roughnessMap,metalnessMap:!!i.metalnessMap,specularMap:!!i.specularMap,alphaMap:!!i.alphaMap,gradientMap:!!i.gradientMap,sheen:!!i.sheen,transmissionMap:!!i.transmissionMap,combine:i.combine,vertexTangents:i.normalMap&&i.vertexTangents,vertexColors:i.vertexColors,vertexUvs:!!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatMap||i.clearcoatRoughnessMap||i.clearcoatNormalMap||i.displacementMap||i.transmissionMap),uvsVertexOnly:!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatNormalMap||i.transmissionMap||!i.displacementMap),fog:!!_,useFog:i.fog,fogExp2:_&&_.isFogExp2,flatShading:!!i.flatShading,sizeAttenuation:i.sizeAttenuation,logarithmicDepthBuffer:l,skinning:i.skinning&&S>0,maxBones:S,useVertexTexture:c,morphTargets:i.morphTargets,morphNormals:i.morphNormals,maxMorphTargets:t.maxMorphTargets,maxMorphNormals:t.maxMorphNormals,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numClippingPlanes:s.numPlanes,numClipIntersection:s.numIntersection,dithering:i.dithering,shadowMapEnabled:t.shadowMap.enabled&&g.length>0,shadowMapType:t.shadowMap.type,toneMapping:i.toneMapped?t.toneMapping:Z,physicallyCorrectLights:t.physicallyCorrectLights,premultipliedAlpha:i.premultipliedAlpha,alphaTest:i.alphaTest,doubleSided:i.side===d,flipSided:i.side===p,depthPacking:void 0!==i.depthPacking&&i.depthPacking,index0AttributeName:i.index0AttributeName,extensionDerivatives:i.extensions&&i.extensions.derivatives,extensionFragDepth:i.extensions&&i.extensions.fragDepth,extensionDrawBuffers:i.extensions&&i.extensions.drawBuffers,extensionShaderTextureLOD:i.extensions&&i.extensions.shaderTextureLOD,rendererExtensionFragDepth:a||n.has("EXT_frag_depth"),rendererExtensionDrawBuffers:a||n.has("WEBGL_draw_buffers"),rendererExtensionShaderTextureLod:a||n.has("EXT_shader_texture_lod"),customProgramCacheKey:i.customProgramCacheKey()}},getProgramCacheKey:function(e){const n=[];if(e.shaderID?n.push(e.shaderID):(n.push(e.fragmentShader),n.push(e.vertexShader)),void 0!==e.defines)for(const t in e.defines)n.push(t),n.push(e.defines[t]);if(!1===e.isRawShaderMaterial){for(let t=0;t<g.length;t++)n.push(e[g[t]]);n.push(t.outputEncoding),n.push(t.gammaFactor)}return n.push(e.customProgramCacheKey),n.join()},getUniforms:function(t){const e=f[t.type];let n;if(e){const 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t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:t.id-e.id}function qc(t){const e=[];let n=0;const r=[],i=[],s={id:-1};function o(r,i,o,a,l,c){let h=e[n];const u=t.get(o);return void 0===h?(h={id:r.id,object:r,geometry:i,material:o,program:u.program||s,groupOrder:a,renderOrder:r.renderOrder,z:l,group:c},e[n]=h):(h.id=r.id,h.object=r,h.geometry=i,h.material=o,h.program=u.program||s,h.groupOrder=a,h.renderOrder=r.renderOrder,h.z=l,h.group=c),n++,h}return{opaque:r,transparent:i,init:function(){n=0,r.length=0,i.length=0},push:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).push(c)},unshift:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).unshift(c)},finish:function(){for(let t=n,r=e.length;t<r;t++){const n=e[t];if(null===n.id)break;n.id=null,n.object=null,n.geometry=null,n.material=null,n.program=null,n.group=null}},sort:function(t,e){r.length>1&&r.sort(t||Wc),i.length>1&&i.sort(e||jc)}}}function Xc(t){let e=new WeakMap;return{get:function(n,r){let i;return!1===e.has(n)?(i=new qc(t),e.set(n,[i])):r>=e.get(n).length?(i=new qc(t),e.get(n).push(i)):i=e.get(n)[r],i},dispose:function(){e=new WeakMap}}}function Yc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":n={direction:new Yn,color:new xi};break;case"SpotLight":n={position:new Yn,direction:new Yn,color:new xi,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":n={position:new Yn,color:new xi,distance:0,decay:0};break;case"HemisphereLight":n={direction:new Yn,skyColor:new xi,groundColor:new xi};break;case"RectAreaLight":n={color:new xi,position:new Yn,halfWidth:new Yn,halfHeight:new Yn}}return t[e.id]=n,n}}}function Zc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":case"SpotLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On};break;case"PointLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On,shadowCameraNear:1,shadowCameraFar:1e3}}return t[e.id]=n,n}}}let Jc=0;function Qc(t,e){return(e.castShadow?1:0)-(t.castShadow?1:0)}function Kc(t,e){const n=new Yc,r=Zc(),i={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadow:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]};for(let l=0;l<9;l++)i.probe.push(new Yn);const s=new Yn,o=new wr,a=new wr;return{setup:function(s){let o=0,a=0,l=0;for(let t=0;t<9;t++)i.probe[t].set(0,0,0);let c=0,h=0,u=0,p=0,d=0,m=0,f=0,g=0;s.sort(Qc);for(let t=0,e=s.length;t<e;t++){const e=s[t],x=e.color,v=e.intensity,y=e.distance,_=e.shadow&&e.shadow.map?e.shadow.map.texture:null;if(e.isAmbientLight)o+=x.r*v,a+=x.g*v,l+=x.b*v;else if(e.isLightProbe)for(let t=0;t<9;t++)i.probe[t].addScaledVector(e.sh.coefficients[t],v);else if(e.isDirectionalLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.directionalShadow[c]=n,i.directionalShadowMap[c]=_,i.directionalShadowMatrix[c]=e.shadow.matrix,m++}i.directional[c]=t,c++}else if(e.isSpotLight){const t=n.get(e);if(t.position.setFromMatrixPosition(e.matrixWorld),t.color.copy(x).multiplyScalar(v),t.distance=y,t.coneCos=Math.cos(e.angle),t.penumbraCos=Math.cos(e.angle*(1-e.penumbra)),t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.spotShadow[u]=n,i.spotShadowMap[u]=_,i.spotShadowMatrix[u]=e.shadow.matrix,g++}i.spot[u]=t,u++}else if(e.isRectAreaLight){const t=n.get(e);t.color.copy(x).multiplyScalar(v),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),i.rectArea[p]=t,p++}else if(e.isPointLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),t.distance=e.distance,t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,n.shadowCameraNear=t.camera.near,n.shadowCameraFar=t.camera.far,i.pointShadow[h]=n,i.pointShadowMap[h]=_,i.pointShadowMatrix[h]=e.shadow.matrix,f++}i.point[h]=t,h++}else if(e.isHemisphereLight){const t=n.get(e);t.skyColor.copy(e.color).multiplyScalar(v),t.groundColor.copy(e.groundColor).multiplyScalar(v),i.hemi[d]=t,d++}}p>0&&(e.isWebGL2?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_float_linear")?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_half_float_linear")?(i.rectAreaLTC1=$a.LTC_HALF_1,i.rectAreaLTC2=$a.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.")),i.ambient[0]=o,i.ambient[1]=a,i.ambient[2]=l;const x=i.hash;x.directionalLength===c&&x.pointLength===h&&x.spotLength===u&&x.rectAreaLength===p&&x.hemiLength===d&&x.numDirectionalShadows===m&&x.numPointShadows===f&&x.numSpotShadows===g||(i.directional.length=c,i.spot.length=u,i.rectArea.length=p,i.point.length=h,i.hemi.length=d,i.directionalShadow.length=m,i.directionalShadowMap.length=m,i.pointShadow.length=f,i.pointShadowMap.length=f,i.spotShadow.length=g,i.spotShadowMap.length=g,i.directionalShadowMatrix.length=m,i.pointShadowMatrix.length=f,i.spotShadowMatrix.length=g,x.directionalLength=c,x.pointLength=h,x.spotLength=u,x.rectAreaLength=p,x.hemiLength=d,x.numDirectionalShadows=m,x.numPointShadows=f,x.numSpotShadows=g,i.version=Jc++)},setupView:function(t,e){let n=0,r=0,l=0,c=0,h=0;const u=e.matrixWorldInverse;for(let p=0,d=t.length;p<d;p++){const e=t[p];if(e.isDirectionalLight){const t=i.directional[n];t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),n++}else if(e.isSpotLight){const t=i.spot[l];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),l++}else if(e.isRectAreaLight){const t=i.rectArea[c];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),a.identity(),o.copy(e.matrixWorld),o.premultiply(u),a.extractRotation(o),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),t.halfWidth.applyMatrix4(a),t.halfHeight.applyMatrix4(a),c++}else if(e.isPointLight){const t=i.point[r];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),r++}else if(e.isHemisphereLight){const t=i.hemi[h];t.direction.setFromMatrixPosition(e.matrixWorld),t.direction.transformDirection(u),t.direction.normalize(),h++}}},state:i}}function $c(t,e){const n=new Kc(t,e),r=[],i=[];return{init:function(){r.length=0,i.length=0},state:{lightsArray:r,shadowsArray:i,lights:n},setupLights:function(){n.setup(r)},setupLightsView:function(t){n.setupView(r,t)},pushLight:function(t){r.push(t)},pushShadow:function(t){i.push(t)}}}function th(t,e){let n=new WeakMap;return{get:function(r,i=0){let s;return!1===n.has(r)?(s=new $c(t,e),n.set(r,[s])):i>=n.get(r).length?(s=new $c(t,e),n.get(r).push(s)):s=n.get(r)[i],s},dispose:function(){n=new WeakMap}}}class eh extends hi{constructor(t){super(),this.type="MeshDepthMaterial",this.depthPacking=en,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.depthPacking=t.depthPacking,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this}}exports.MeshDepthMaterial=eh,eh.prototype.isMeshDepthMaterial=!0;class nh extends hi{constructor(t){super(),this.type="MeshDistanceMaterial",this.referencePosition=new Yn,this.nearDistance=1,this.farDistance=1e3,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.referencePosition.copy(t.referencePosition),this.nearDistance=t.nearDistance,this.farDistance=t.farDistance,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this}}exports.MeshDistanceMaterial=nh,nh.prototype.isMeshDistanceMaterial=!0;var rh="uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}",ih="void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";function sh(t,e,n){let r=new Es;const i=new On,s=new On,o=new Wn,a=[],c=[],m={},f={0:p,1:u,2:d},x=new fs({defines:{SAMPLE_RATE:.25,HALF_SAMPLE_RATE:1/8},uniforms:{shadow_pass:{value:null},resolution:{value:new On},radius:{value:4}},vertexShader:ih,fragmentShader:rh}),v=x.clone();v.defines.HORIZONTAL_PASS=1;const y=new ki;y.setAttribute("position",new bi(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const _=new os(y,x),b=this;function w(n,r){const i=e.update(_);x.uniforms.shadow_pass.value=n.map.texture,x.uniforms.resolution.value=n.mapSize,x.uniforms.radius.value=n.radius,t.setRenderTarget(n.mapPass),t.clear(),t.renderBufferDirect(r,null,i,x,_,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,t.setRenderTarget(n.map),t.clear(),t.renderBufferDirect(r,null,i,v,_,null)}function M(t,e,n){const r=t<<0|e<<1|n<<2;let i=a[r];return void 0===i&&(i=new eh({depthPacking:nn,morphTargets:t,skinning:e}),a[r]=i),i}function S(t,e,n){const r=t<<0|e<<1|n<<2;let i=c[r];return void 0===i&&(i=new nh({morphTargets:t,skinning:e}),c[r]=i),i}function T(e,n,r,i,s,o,a){let l=null,c=M,u=e.customDepthMaterial;if(!0===i.isPointLight&&(c=S,u=e.customDistanceMaterial),void 0===u){let t=!1;!0===r.morphTargets&&(t=n.morphAttributes&&n.morphAttributes.position&&n.morphAttributes.position.length>0);let i=!1;!0===e.isSkinnedMesh&&(!0===r.skinning?i=!0:console.warn("THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:",e)),l=c(t,i,!0===e.isInstancedMesh)}else l=u;if(t.localClippingEnabled&&!0===r.clipShadows&&0!==r.clippingPlanes.length){const t=l.uuid,e=r.uuid;let n=m[t];void 0===n&&(n={},m[t]=n);let i=n[e];void 0===i&&(i=l.clone(),n[e]=i),l=i}return l.visible=r.visible,l.wireframe=r.wireframe,l.side=a===h?null!==r.shadowSide?r.shadowSide:r.side:null!==r.shadowSide?r.shadowSide:f[r.side],l.clipShadows=r.clipShadows,l.clippingPlanes=r.clippingPlanes,l.clipIntersection=r.clipIntersection,l.wireframeLinewidth=r.wireframeLinewidth,l.linewidth=r.linewidth,!0===i.isPointLight&&!0===l.isMeshDistanceMaterial&&(l.referencePosition.setFromMatrixPosition(i.matrixWorld),l.nearDistance=s,l.farDistance=o),l}function E(n,i,s,o,a){if(!1===n.visible)return;if(n.layers.test(i.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&a===h)&&(!n.frustumCulled||r.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(s.matrixWorldInverse,n.matrixWorld);const r=e.update(n),i=n.material;if(Array.isArray(i)){const e=r.groups;for(let l=0,c=e.length;l<c;l++){const c=e[l],h=i[c.materialIndex];if(h&&h.visible){const e=T(n,r,h,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,c)}}}else if(i.visible){const e=T(n,r,i,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,null)}}const l=n.children;for(let t=0,e=l.length;t<e;t++)E(l[t],i,s,o,a)}this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=l,this.render=function(e,a,l){if(!1===b.enabled)return;if(!1===b.autoUpdate&&!1===b.needsUpdate)return;if(0===e.length)return;const c=t.getRenderTarget(),u=t.getActiveCubeFace(),p=t.getActiveMipmapLevel(),d=t.state;d.setBlending(g),d.buffers.color.setClear(1,1,1,1),d.buffers.depth.setTest(!0),d.setScissorTest(!1);for(let m=0,f=e.length;m<f;m++){const c=e[m],u=c.shadow;if(void 0===u){console.warn("THREE.WebGLShadowMap:",c,"has no shadow.");continue}if(!1===u.autoUpdate&&!1===u.needsUpdate)continue;i.copy(u.mapSize);const p=u.getFrameExtents();if(i.multiply(p),s.copy(u.mapSize),(i.x>n||i.y>n)&&(i.x>n&&(s.x=Math.floor(n/p.x),i.x=s.x*p.x,u.mapSize.x=s.x),i.y>n&&(s.y=Math.floor(n/p.y),i.y=s.y*p.y,u.mapSize.y=s.y)),null===u.map&&!u.isPointLightShadow&&this.type===h){const t={minFilter:gt,magFilter:gt,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.mapPass=new jn(i.x,i.y,t),u.camera.updateProjectionMatrix()}if(null===u.map){const t={minFilter:ut,magFilter:ut,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.camera.updateProjectionMatrix()}t.setRenderTarget(u.map),t.clear();const f=u.getViewportCount();for(let t=0;t<f;t++){const e=u.getViewport(t);o.set(s.x*e.x,s.y*e.y,s.x*e.z,s.y*e.w),d.viewport(o),u.updateMatrices(c,t),r=u.getFrustum(),E(a,l,u.camera,c,this.type)}u.isPointLightShadow||this.type!==h||w(u,l),u.needsUpdate=!1}b.needsUpdate=!1,t.setRenderTarget(c,u,p)}}function oh(t,e,n){const o=n.isWebGL2;const a=new function(){let e=!1;const n=new Wn;let r=null;const i=new Wn(0,0,0,0);return{setMask:function(n){r===n||e||(t.colorMask(n,n,n,n),r=n)},setLocked:function(t){e=t},setClear:function(e,r,s,o,a){!0===a&&(e*=o,r*=o,s*=o),n.set(e,r,s,o),!1===i.equals(n)&&(t.clearColor(e,r,s,o),i.copy(n))},reset:function(){e=!1,r=null,i.set(-1,0,0,0)}}},l=new function(){let e=!1,n=null,r=null,i=null;return{setTest:function(t){t?mt(2929):ft(2929)},setMask:function(r){n===r||e||(t.depthMask(r),n=r)},setFunc:function(e){if(r!==e){if(e)switch(e){case z:t.depthFunc(512);break;case G:t.depthFunc(519);break;case H:t.depthFunc(513);break;case U:t.depthFunc(515);break;case k:t.depthFunc(514);break;case V:t.depthFunc(518);break;case W:t.depthFunc(516);break;case j:t.depthFunc(517);break;default:t.depthFunc(515)}else t.depthFunc(515);r=e}},setLocked:function(t){e=t},setClear:function(e){i!==e&&(t.clearDepth(e),i=e)},reset:function(){e=!1,n=null,r=null,i=null}}},c=new function(){let e=!1,n=null,r=null,i=null,s=null,o=null,a=null,l=null,c=null;return{setTest:function(t){e||(t?mt(2960):ft(2960))},setMask:function(r){n===r||e||(t.stencilMask(r),n=r)},setFunc:function(e,n,o){r===e&&i===n&&s===o||(t.stencilFunc(e,n,o),r=e,i=n,s=o)},setOp:function(e,n,r){o===e&&a===n&&l===r||(t.stencilOp(e,n,r),o=e,a=n,l=r)},setLocked:function(t){e=t},setClear:function(e){c!==e&&(t.clearStencil(e),c=e)},reset:function(){e=!1,n=null,r=null,i=null,s=null,o=null,a=null,l=null,c=null}}};let h={},u=null,m=!1,f=null,q=null,X=null,Y=null,Z=null,J=null,Q=null,K=!1,$=null,tt=null,et=null,nt=null,rt=null;const it=t.getParameter(35661);let st=!1,ot=0;const at=t.getParameter(7938);-1!==at.indexOf("WebGL")?(ot=parseFloat(/^WebGL (\d)/.exec(at)[1]),st=ot>=1):-1!==at.indexOf("OpenGL ES")&&(ot=parseFloat(/^OpenGL ES (\d)/.exec(at)[1]),st=ot>=2);let lt=null,ct={};const ht=new Wn,ut=new Wn;function pt(e,n,r){const i=new Uint8Array(4),s=t.createTexture();t.bindTexture(e,s),t.texParameteri(e,10241,9728),t.texParameteri(e,10240,9728);for(let o=0;o<r;o++)t.texImage2D(n+o,0,6408,1,1,0,6408,5121,i);return s}const dt={};function mt(e){!0!==h[e]&&(t.enable(e),h[e]=!0)}function ft(e){!1!==h[e]&&(t.disable(e),h[e]=!1)}dt[3553]=pt(3553,3553,1),dt[34067]=pt(34067,34069,6),a.setClear(0,0,0,1),l.setClear(1),c.setClear(0),mt(2929),l.setFunc(U),yt(!1),_t(i),mt(2884),vt(g);const gt={[w]:32774,[M]:32778,[S]:32779};if(o)gt[T]=32775,gt[E]=32776;else{const t=e.get("EXT_blend_minmax");null!==t&&(gt[T]=t.MIN_EXT,gt[E]=t.MAX_EXT)}const xt={[A]:0,[L]:1,[R]:768,[P]:770,[O]:776,[N]:774,[I]:772,[C]:769,[D]:771,[F]:775,[B]:773};function vt(e,n,r,i,s,o,a,l){if(e!==g){if(!1===m&&(mt(3042),m=!0),e===b)s=s||n,o=o||r,a=a||i,n===q&&s===Z||(t.blendEquationSeparate(gt[n],gt[s]),q=n,Z=s),r===X&&i===Y&&o===J&&a===Q||(t.blendFuncSeparate(xt[r],xt[i],xt[o],xt[a]),X=r,Y=i,J=o,Q=a),f=e,K=null;else if(e!==f||l!==K){if(q===w&&Z===w||(t.blendEquation(32774),q=w,Z=w),l)switch(e){case x:t.blendFuncSeparate(1,771,1,771);break;case v:t.blendFunc(1,1);break;case y:t.blendFuncSeparate(0,0,769,771);break;case _:t.blendFuncSeparate(0,768,0,770);break;default:console.error("THREE.WebGLState: Invalid blending: ",e)}else switch(e){case x:t.blendFuncSeparate(770,771,1,771);break;case v:t.blendFunc(770,1);break;case y:t.blendFunc(0,769);break;case _:t.blendFunc(0,768);break;default:console.error("THREE.WebGLState: Invalid blending: 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ah(t,e,n,r,i,s,o){const a=i.isWebGL2,l=i.maxTextures,c=i.maxCubemapSize,h=i.maxTextureSize,u=i.maxSamples,p=new WeakMap;let d,m=!1;try{m="undefined"!=typeof OffscreenCanvas&&null!==new OffscreenCanvas(1,1).getContext("2d")}catch(z){}function f(t,e){return m?new OffscreenCanvas(t,e):document.createElementNS("http://www.w3.org/1999/xhtml","canvas")}function g(t,e,n,r){let i=1;if((t.width>r||t.height>r)&&(i=r/Math.max(t.width,t.height)),i<1||!0===e){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const r=e?Fn.floorPowerOfTwo:Math.floor,s=r(i*t.width),o=r(i*t.height);void 0===d&&(d=f(s,o));const a=n?f(s,o):d;return a.width=s,a.height=o,a.getContext("2d").drawImage(t,0,0,s,o),console.warn("THREE.WebGLRenderer: Texture has been resized from ("+t.width+"x"+t.height+") to ("+s+"x"+o+")."),a}return"data"in t&&console.warn("THREE.WebGLRenderer: 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i=r.get(t);if(t.isVideoTexture&&function(t){const e=o.render.frame;p.get(t)!==e&&(p.set(t,e),t.update())}(t),t.version>0&&i.__version!==t.version){const n=t.image;if(void 0===n)console.warn("THREE.WebGLRenderer: Texture marked for update but image is undefined");else{if(!1!==n.complete)return void P(i,t,e);console.warn("THREE.WebGLRenderer: Texture marked for update but image is incomplete")}}n.activeTexture(33984+e),n.bindTexture(3553,i.__webglTexture)}function E(e,i){const o=r.get(e);e.version>0&&o.__version!==e.version?function(e,r,i){if(6!==r.image.length)return;C(e,r),n.activeTexture(33984+i),n.bindTexture(34067,e.__webglTexture),t.pixelStorei(37440,r.flipY),t.pixelStorei(37441,r.premultiplyAlpha),t.pixelStorei(3317,r.unpackAlignment),t.pixelStorei(37443,0);const o=r&&(r.isCompressedTexture||r.image[0].isCompressedTexture),l=r.image[0]&&r.image[0].isDataTexture,h=[];for(let t=0;t<6;t++)h[t]=o||l?l?r.image[t].image:r.image[t]:g(r.image[t],!1,!0,c);const 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uh,l[t]=e),e.getHandSpace()},this.setFramebufferScaleFactor=function(t){i=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(t){o=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return s},this.getSession=function(){return r},this.setSession=async function(t){if(null!==(r=t)){r.addEventListener("select",g),r.addEventListener("selectstart",g),r.addEventListener("selectend",g),r.addEventListener("squeeze",g),r.addEventListener("squeezestart",g),r.addEventListener("squeezeend",g),r.addEventListener("end",x),r.addEventListener("inputsourceschange",v);const t=e.getContextAttributes();!0!==t.xrCompatible&&await e.makeXRCompatible();const a={antialias:t.antialias,alpha:t.alpha,depth:t.depth,stencil:t.stencil,framebufferScaleFactor:i},l=new XRWebGLLayer(r,e,a);r.updateRenderState({baseLayer:l}),s=await 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r=e[t],s=n.getViewport(r),o=p[t];o.matrix.fromArray(r.transform.matrix),o.projectionMatrix.fromArray(r.projectionMatrix),o.viewport.set(s.x,s.y,s.width,s.height),0===t&&d.matrix.copy(o.matrix),!0===i&&d.cameras.push(o)}}const i=r.inputSources;for(let t=0;t<l.length;t++){const e=l[t],r=i[t];e.update(r,n,s)}w&&w(e,n)}),this.setAnimationLoop=function(t){w=t},this.dispose=function(){}}function dh(t){function e(e,n){e.opacity.value=n.opacity,n.color&&e.diffuse.value.copy(n.color),n.emissive&&e.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),n.map&&(e.map.value=n.map),n.alphaMap&&(e.alphaMap.value=n.alphaMap),n.specularMap&&(e.specularMap.value=n.specularMap);const r=t.get(n).envMap;if(r){e.envMap.value=r,e.flipEnvMap.value=r.isCubeTexture&&r._needsFlipEnvMap?-1:1,e.reflectivity.value=n.reflectivity,e.refractionRatio.value=n.refractionRatio;const i=t.get(r).__maxMipLevel;void 0!==i&&(e.maxMipLevel.value=i)}let i,s;n.lightMap&&(e.lightMap.value=n.lightMap,e.lightMapIntensity.value=n.lightMapIntensity),n.aoMap&&(e.aoMap.value=n.aoMap,e.aoMapIntensity.value=n.aoMapIntensity),n.map?i=n.map:n.specularMap?i=n.specularMap:n.displacementMap?i=n.displacementMap:n.normalMap?i=n.normalMap:n.bumpMap?i=n.bumpMap:n.roughnessMap?i=n.roughnessMap:n.metalnessMap?i=n.metalnessMap:n.alphaMap?i=n.alphaMap:n.emissiveMap?i=n.emissiveMap:n.clearcoatMap?i=n.clearcoatMap:n.clearcoatNormalMap?i=n.clearcoatNormalMap:n.clearcoatRoughnessMap&&(i=n.clearcoatRoughnessMap),void 0!==i&&(i.isWebGLRenderTarget&&(i=i.texture),!0===i.matrixAutoUpdate&&i.updateMatrix(),e.uvTransform.value.copy(i.matrix)),n.aoMap?s=n.aoMap:n.lightMap&&(s=n.lightMap),void 0!==s&&(s.isWebGLRenderTarget&&(s=s.texture),!0===s.matrixAutoUpdate&&s.updateMatrix(),e.uv2Transform.value.copy(s.matrix))}function n(e,n){e.roughness.value=n.roughness,e.metalness.value=n.metalness,n.roughnessMap&&(e.roughnessMap.value=n.roughnessMap),n.metalnessMap&&(e.metalnessMap.value=n.metalnessMap),n.emissiveMap&&(e.emissiveMap.value=n.emissiveMap),n.bumpMap&&(e.bumpMap.value=n.bumpMap,e.bumpScale.value=n.bumpScale,n.side===p&&(e.bumpScale.value*=-1)),n.normalMap&&(e.normalMap.value=n.normalMap,e.normalScale.value.copy(n.normalScale),n.side===p&&e.normalScale.value.negate()),n.displacementMap&&(e.displacementMap.value=n.displacementMap,e.displacementScale.value=n.displacementScale,e.displacementBias.value=n.displacementBias),t.get(n).envMap&&(e.envMapIntensity.value=n.envMapIntensity)}return{refreshFogUniforms:function(t,e){t.fogColor.value.copy(e.color),e.isFog?(t.fogNear.value=e.near,t.fogFar.value=e.far):e.isFogExp2&&(t.fogDensity.value=e.density)},refreshMaterialUniforms:function(t,r,i,s){r.isMeshBasicMaterial?e(t,r):r.isMeshLambertMaterial?(e(t,r),function(t,e){e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap)}(t,r)):r.isMeshToonMaterial?(e(t,r),function(t,e){e.gradientMap&&(t.gradientMap.value=e.gradientMap),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshPhongMaterial?(e(t,r),function(t,e){t.specular.value.copy(e.specular),t.shininess.value=Math.max(e.shininess,1e-4),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshStandardMaterial?(e(t,r),r.isMeshPhysicalMaterial?function(t,e){n(t,e),t.reflectivity.value=e.reflectivity,t.clearcoat.value=e.clearcoat,t.clearcoatRoughness.value=e.clearcoatRoughness,e.sheen&&t.sheen.value.copy(e.sheen),e.clearcoatMap&&(t.clearcoatMap.value=e.clearcoatMap),e.clearcoatRoughnessMap&&(t.clearcoatRoughnessMap.value=e.clearcoatRoughnessMap),e.clearcoatNormalMap&&(t.clearcoatNormalScale.value.copy(e.clearcoatNormalScale),t.clearcoatNormalMap.value=e.clearcoatNormalMap,e.side===p&&t.clearcoatNormalScale.value.negate()),t.transmission.value=e.transmission,e.transmissionMap&&(t.transmissionMap.value=e.transmissionMap)}(t,r):n(t,r)):r.isMeshMatcapMaterial?(e(t,r),function(t,e){e.matcap&&(t.matcap.value=e.matcap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshDepthMaterial?(e(t,r),function(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshDistanceMaterial?(e(t,r),function(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias),t.referencePosition.value.copy(e.referencePosition),t.nearDistance.value=e.nearDistance,t.farDistance.value=e.farDistance}(t,r)):r.isMeshNormalMaterial?(e(t,r),function(t,e){e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isLineBasicMaterial?(function(t,e){t.diffuse.value.copy(e.color),t.opacity.value=e.opacity}(t,r),r.isLineDashedMaterial&&function(t,e){t.dashSize.value=e.dashSize,t.totalSize.value=e.dashSize+e.gapSize,t.scale.value=e.scale}(t,r)):r.isPointsMaterial?function(t,e,n,r){let i;t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.size.value=e.size*n,t.scale.value=.5*r,e.map&&(t.map.value=e.map),e.alphaMap&&(t.alphaMap.value=e.alphaMap),e.map?i=e.map:e.alphaMap&&(i=e.alphaMap),void 0!==i&&(!0===i.matrixAutoUpdate&&i.updateMatrix(),t.uvTransform.value.copy(i.matrix))}(t,r,i,s):r.isSpriteMaterial?function(t,e){let n;t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.rotation.value=e.rotation,e.map&&(t.map.value=e.map),e.alphaMap&&(t.alphaMap.value=e.alphaMap),e.map?n=e.map:e.alphaMap&&(n=e.alphaMap),void 0!==n&&(!0===n.matrixAutoUpdate&&n.updateMatrix(),t.uvTransform.value.copy(n.matrix))}(t,r):r.isShadowMaterial?(t.color.value.copy(r.color),t.opacity.value=r.opacity):r.isShaderMaterial&&(r.uniformsNeedUpdate=!1)}}}function mh(){const t=document.createElementNS("http://www.w3.org/1999/xhtml","canvas");return t.style.display="block",t}function fh(t){const e=void 0!==(t=t||{}).canvas?t.canvas:mh(),n=void 0!==t.context?t.context:null,r=void 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Mt(t,e,n,r,i,s){if(t.onBeforeRender(f,e,n,r,i,s),t.modelViewMatrix.multiplyMatrices(n.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),t.isImmediateRenderObject){const r=Tt(n,e,i,t);W.setMaterial(i),ct.reset(),function(t,e){t.render(function(t){f.renderBufferImmediate(t,e)})}(t,r)}else f.renderBufferDirect(n,e,r,i,t,s);t.onAfterRender(f,e,n,r,i,s)}function St(t,e,n){!0!==e.isScene&&(e=H);const r=q.get(t),i=p.state.lights,s=p.state.shadowsArray,o=i.state.version,a=$.getParameters(t,i.state,s,e,n),l=$.getProgramCacheKey(a);let c=r.program,h=!0;if(r.environment=t.isMeshStandardMaterial?e.environment:null,r.fog=e.fog,r.envMap=Y.get(t.envMap||r.environment),void 0===c)t.addEventListener("dispose",xt);else if(c.cacheKey!==l)vt(t);else if(r.lightsStateVersion!==o)h=!1;else{if(void 0!==a.shaderID)return;h=!1}h&&(a.uniforms=$.getUniforms(t),t.onBeforeCompile(a,f),c=$.acquireProgram(a,l),r.program=c,r.uniforms=a.uniforms,r.outputEncoding=a.outputEncoding);const u=r.uniforms;(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(r.numClippingPlanes=rt.numPlanes,r.numIntersection=rt.numIntersection,u.clippingPlanes=rt.uniform),r.needsLights=function(t){return t.isMeshLambertMaterial||t.isMeshToonMaterial||t.isMeshPhongMaterial||t.isMeshStandardMaterial||t.isShadowMaterial||t.isShaderMaterial&&!0===t.lights}(t),r.lightsStateVersion=o,r.needsLights&&(u.ambientLightColor.value=i.state.ambient,u.lightProbe.value=i.state.probe,u.directionalLights.value=i.state.directional,u.directionalLightShadows.value=i.state.directionalShadow,u.spotLights.value=i.state.spot,u.spotLightShadows.value=i.state.spotShadow,u.rectAreaLights.value=i.state.rectArea,u.ltc_1.value=i.state.rectAreaLTC1,u.ltc_2.value=i.state.rectAreaLTC2,u.pointLights.value=i.state.point,u.pointLightShadows.value=i.state.pointShadow,u.hemisphereLights.value=i.state.hemi,u.directionalShadowMap.value=i.state.directionalShadowMap,u.directionalShadowMatrix.value=i.state.directionalShadowMatrix,u.spotShadowMap.value=i.state.spotShadowMap,u.spotShadowMatrix.value=i.state.spotShadowMatrix,u.pointShadowMap.value=i.state.pointShadowMap,u.pointShadowMatrix.value=i.state.pointShadowMatrix);const d=r.program.getUniforms(),m=dc.seqWithValue(d.seq,u);r.uniformsList=m}function Tt(t,e,n,r){!0!==e.isScene&&(e=H),X.resetTextureUnits();const i=e.fog,s=n.isMeshStandardMaterial?e.environment:null,o=null===_?f.outputEncoding:_.texture.encoding,a=Y.get(n.envMap||s),l=q.get(n),c=p.state.lights;if(!0===F&&(!0===O||t!==M)){const e=t===M&&n.id===w;rt.setState(n,t,e)}n.version===l.__version?n.fog&&l.fog!==i?St(n,e,r):l.environment!==s?St(n,e,r):l.needsLights&&l.lightsStateVersion!==c.state.version?St(n,e,r):void 0===l.numClippingPlanes||l.numClippingPlanes===rt.numPlanes&&l.numIntersection===rt.numIntersection?l.outputEncoding!==o?St(n,e,r):l.envMap!==a&&St(n,e,r):St(n,e,r):(St(n,e,r),l.__version=n.version);let h=!1,u=!1,d=!1;const m=l.program,g=m.getUniforms(),x=l.uniforms;if(W.useProgram(m.program)&&(h=!0,u=!0,d=!0),n.id!==w&&(w=n.id,u=!0),h||M!==t){if(g.setValue(ht,"projectionMatrix",t.projectionMatrix),V.logarithmicDepthBuffer&&g.setValue(ht,"logDepthBufFC",2/(Math.log(t.far+1)/Math.LN2)),M!==t&&(M=t,u=!0,d=!0),n.isShaderMaterial||n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshStandardMaterial||n.envMap){const e=g.map.cameraPosition;void 0!==e&&e.setValue(ht,G.setFromMatrixPosition(t.matrixWorld))}(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial)&&g.setValue(ht,"isOrthographic",!0===t.isOrthographicCamera),(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial||n.isShadowMaterial||n.skinning)&&g.setValue(ht,"viewMatrix",t.matrixWorldInverse)}if(n.skinning){g.setOptional(ht,r,"bindMatrix"),g.setOptional(ht,r,"bindMatrixInverse");const t=r.skeleton;if(t){const e=t.bones;if(V.floatVertexTextures){if(null===t.boneTexture){let n=Math.sqrt(4*e.length);n=Fn.ceilPowerOfTwo(n),n=Math.max(n,4);const r=new Float32Array(n*n*4);r.set(t.boneMatrices);const i=new Ms(r,n,n,Nt,At);t.boneMatrices=r,t.boneTexture=i,t.boneTextureSize=n}g.setValue(ht,"boneTexture",t.boneTexture,X),g.setValue(ht,"boneTextureSize",t.boneTextureSize)}else g.setOptional(ht,t,"boneMatrices")}}var v,y;return(u||l.receiveShadow!==r.receiveShadow)&&(l.receiveShadow=r.receiveShadow,g.setValue(ht,"receiveShadow",r.receiveShadow)),u&&(g.setValue(ht,"toneMappingExposure",f.toneMappingExposure),l.needsLights&&(y=d,(v=x).ambientLightColor.needsUpdate=y,v.lightProbe.needsUpdate=y,v.directionalLights.needsUpdate=y,v.directionalLightShadows.needsUpdate=y,v.pointLights.needsUpdate=y,v.pointLightShadows.needsUpdate=y,v.spotLights.needsUpdate=y,v.spotLightShadows.needsUpdate=y,v.rectAreaLights.needsUpdate=y,v.hemisphereLights.needsUpdate=y),i&&n.fog&&tt.refreshFogUniforms(x,i),tt.refreshMaterialUniforms(x,n,R,L),dc.upload(ht,l.uniformsList,x,X)),n.isShaderMaterial&&!0===n.uniformsNeedUpdate&&(dc.upload(ht,l.uniformsList,x,X),n.uniformsNeedUpdate=!1),n.isSpriteMaterial&&g.setValue(ht,"center",r.center),g.setValue(ht,"modelViewMatrix",r.modelViewMatrix),g.setValue(ht,"normalMatrix",r.normalMatrix),g.setValue(ht,"modelMatrix",r.matrixWorld),m}_t.setAnimationLoop(function(t){dt.isPresenting||yt&&yt(t)}),"undefined"!=typeof window&&_t.setContext(window),this.setAnimationLoop=function(t){yt=t,dt.setAnimationLoop(t),null===t?_t.stop():_t.start()},this.render=function(t,e){let n,r;if(void 0!==arguments[2]&&(console.warn("THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead."),n=arguments[2]),void 0!==arguments[3]&&(console.warn("THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead."),r=arguments[3]),void 0!==e&&!0!==e.isCamera)return void console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");if(!0===g)return;ct.resetDefaultState(),w=-1,M=null,!0===t.autoUpdate&&t.updateMatrixWorld(),null===e.parent&&e.updateMatrixWorld(),!0===dt.enabled&&!0===dt.isPresenting&&(e=dt.getCamera(e)),!0===t.isScene&&t.onBeforeRender(f,t,e,n||_),(p=nt.get(t,m.length)).init(),m.push(p),z.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),N.setFromProjectionMatrix(z),O=this.localClippingEnabled,F=rt.init(this.clippingPlanes,O,e),(u=et.get(t,d.length)).init(),d.push(u),function t(e,n,r,i){if(!1===e.visible)return;const s=e.layers.test(n.layers);if(s)if(e.isGroup)r=e.renderOrder;else if(e.isLOD)!0===e.autoUpdate&&e.update(n);else if(e.isLight)p.pushLight(e),e.castShadow&&p.pushShadow(e);else if(e.isSprite){if(!e.frustumCulled||N.intersectsSprite(e)){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;n.visible&&u.push(e,t,n,r,G.z,null)}}else if(e.isImmediateRenderObject)i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z),u.push(e,null,e.material,r,G.z,null);else if((e.isMesh||e.isLine||e.isPoints)&&(e.isSkinnedMesh&&e.skeleton.frame!==j.render.frame&&(e.skeleton.update(),e.skeleton.frame=j.render.frame),!e.frustumCulled||N.intersectsObject(e))){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;if(Array.isArray(n)){const i=t.groups;for(let s=0,o=i.length;s<o;s++){const o=i[s],a=n[o.materialIndex];a&&a.visible&&u.push(e,t,a,r,G.z,o)}}else n.visible&&u.push(e,t,n,r,G.z,null)}const o=e.children;for(let a=0,l=o.length;a<l;a++)t(o[a],n,r,i)}(t,e,0,f.sortObjects),u.finish(),!0===f.sortObjects&&u.sort(C,P),!0===F&&rt.beginShadows();const i=p.state.shadowsArray;mt.render(i,t,e),p.setupLights(),p.setupLightsView(e),!0===F&&rt.endShadows(),!0===this.info.autoReset&&this.info.reset(),void 0!==n&&this.setRenderTarget(n),it.render(u,t,e,r);const s=u.opaque,o=u.transparent;s.length>0&&wt(s,t,e),o.length>0&&wt(o,t,e),!0===t.isScene&&t.onAfterRender(f,t,e),null!==_&&(X.updateRenderTargetMipmap(_),X.updateMultisampleRenderTarget(_)),W.buffers.depth.setTest(!0),W.buffers.depth.setMask(!0),W.buffers.color.setMask(!0),W.setPolygonOffset(!1),m.pop(),p=m.length>0?m[m.length-1]:null,d.pop(),u=d.length>0?d[d.length-1]:null},this.setFramebuffer=function(t){x!==t&&null===_&&ht.bindFramebuffer(36160,t),x=t},this.getActiveCubeFace=function(){return v},this.getActiveMipmapLevel=function(){return y},this.getRenderTarget=function(){return _},this.setRenderTarget=function(t,e=0,n=0){_=t,v=e,y=n,t&&void 0===q.get(t).__webglFramebuffer&&X.setupRenderTarget(t);let r=x,i=!1,s=!1;if(t){const n=t.texture;(n.isDataTexture3D||n.isDataTexture2DArray)&&(s=!0);const o=q.get(t).__webglFramebuffer;t.isWebGLCubeRenderTarget?(r=o[e],i=!0):r=t.isWebGLMultisampleRenderTarget?q.get(t).__webglMultisampledFramebuffer:o,S.copy(t.viewport),T.copy(t.scissor),E=t.scissorTest}else S.copy(D).multiplyScalar(R).floor(),T.copy(I).multiplyScalar(R).floor(),E=B;if(b!==r&&(ht.bindFramebuffer(36160,r),b=r),W.viewport(S),W.scissor(T),W.setScissorTest(E),i){const r=q.get(t.texture);ht.framebufferTexture2D(36160,36064,34069+e,r.__webglTexture,n)}else if(s){const r=q.get(t.texture),i=e||0;ht.framebufferTextureLayer(36160,36064,r.__webglTexture,n||0,i)}},this.readRenderTargetPixels=function(t,e,n,r,i,s,o){if(!t||!t.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let a=q.get(t).__webglFramebuffer;if(t.isWebGLCubeRenderTarget&&void 0!==o&&(a=a[o]),a){let o=!1;a!==b&&(ht.bindFramebuffer(36160,a),o=!0);try{const a=t.texture,l=a.format,c=a.type;if(l!==Nt&&lt.convert(l)!==ht.getParameter(35739))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const h=c===Lt&&(k.has("EXT_color_buffer_half_float")||V.isWebGL2&&k.has("EXT_color_buffer_float"));if(!(c===bt||lt.convert(c)===ht.getParameter(35738)||c===At&&(V.isWebGL2||k.has("OES_texture_float")||k.has("WEBGL_color_buffer_float"))||h))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");36053===ht.checkFramebufferStatus(36160)?e>=0&&e<=t.width-r&&n>=0&&n<=t.height-i&&ht.readPixels(e,n,r,i,lt.convert(l),lt.convert(c),s):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.")}finally{o&&ht.bindFramebuffer(36160,b)}}},this.copyFramebufferToTexture=function(t,e,n=0){const r=Math.pow(2,-n),i=Math.floor(e.image.width*r),s=Math.floor(e.image.height*r),o=lt.convert(e.format);X.setTexture2D(e,0),ht.copyTexImage2D(3553,n,o,t.x,t.y,i,s,0),W.unbindTexture()},this.copyTextureToTexture=function(t,e,n,r=0){const i=e.image.width,s=e.image.height,o=lt.convert(n.format),a=lt.convert(n.type);X.setTexture2D(n,0),ht.pixelStorei(37440,n.flipY),ht.pixelStorei(37441,n.premultiplyAlpha),ht.pixelStorei(3317,n.unpackAlignment),e.isDataTexture?ht.texSubImage2D(3553,r,t.x,t.y,i,s,o,a,e.image.data):e.isCompressedTexture?ht.compressedTexSubImage2D(3553,r,t.x,t.y,e.mipmaps[0].width,e.mipmaps[0].height,o,e.mipmaps[0].data):ht.texSubImage2D(3553,r,t.x,t.y,o,a,e.image),0===r&&n.generateMipmaps&&ht.generateMipmap(3553),W.unbindTexture()},this.copyTextureToTexture3D=function(t,e,n,r,i=0){if(f.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const{width:s,height:o,data:a}=n.image,l=lt.convert(r.format),c=lt.convert(r.type);let h;if(r.isDataTexture3D)X.setTexture3D(r,0),h=32879;else{if(!r.isDataTexture2DArray)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");X.setTexture2DArray(r,0),h=35866}ht.pixelStorei(37440,r.flipY),ht.pixelStorei(37441,r.premultiplyAlpha),ht.pixelStorei(3317,r.unpackAlignment);const u=ht.getParameter(3314),p=ht.getParameter(32878),d=ht.getParameter(3316),m=ht.getParameter(3315),g=ht.getParameter(32877);ht.pixelStorei(3314,s),ht.pixelStorei(32878,o),ht.pixelStorei(3316,t.min.x),ht.pixelStorei(3315,t.min.y),ht.pixelStorei(32877,t.min.z),ht.texSubImage3D(h,i,e.x,e.y,e.z,t.max.x-t.min.x+1,t.max.y-t.min.y+1,t.max.z-t.min.z+1,l,c,a),ht.pixelStorei(3314,u),ht.pixelStorei(32878,p),ht.pixelStorei(3316,d),ht.pixelStorei(3315,m),ht.pixelStorei(32877,g),0===i&&r.generateMipmaps&&ht.generateMipmap(h),W.unbindTexture()},this.initTexture=function(t){X.setTexture2D(t,0),W.unbindTexture()},this.resetState=function(){W.reset(),ct.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}exports.Group=hh,hh.prototype.isGroup=!0,Object.assign(uh.prototype,{constructor:uh,getHandSpace:function(){return null===this._hand&&(this._hand=new hh,this._hand.matrixAutoUpdate=!1,this._hand.visible=!1,this._hand.joints={},this._hand.inputState={pinching:!1}),this._hand},getTargetRaySpace:function(){return null===this._targetRay&&(this._targetRay=new hh,this._targetRay.matrixAutoUpdate=!1,this._targetRay.visible=!1),this._targetRay},getGripSpace:function(){return null===this._grip&&(this._grip=new hh,this._grip.matrixAutoUpdate=!1,this._grip.visible=!1),this._grip},dispatchEvent:function(t){return null!==this._targetRay&&this._targetRay.dispatchEvent(t),null!==this._grip&&this._grip.dispatchEvent(t),null!==this._hand&&this._hand.dispatchEvent(t),this},disconnect:function(t){return this.dispatchEvent({type:"disconnected",data:t}),null!==this._targetRay&&(this._targetRay.visible=!1),null!==this._grip&&(this._grip.visible=!1),null!==this._hand&&(this._hand.visible=!1),this},update:function(t,e,n){let r=null,i=null,s=null;const o=this._targetRay,a=this._grip,l=this._hand;if(t&&"visible-blurred"!==e.session.visibilityState)if(l&&t.hand){s=!0;for(const s of t.hand.values()){const t=e.getJointPose(s,n);if(void 0===l.joints[s.jointName]){const t=new hh;t.matrixAutoUpdate=!1,t.visible=!1,l.joints[s.jointName]=t,l.add(t)}const r=l.joints[s.jointName];null!==t&&(r.matrix.fromArray(t.transform.matrix),r.matrix.decompose(r.position,r.rotation,r.scale),r.jointRadius=t.radius),r.visible=null!==t}const r=l.joints["index-finger-tip"],i=l.joints["thumb-tip"],o=r.position.distanceTo(i.position),a=.02,c=.005;l.inputState.pinching&&o>a+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this})):!l.inputState.pinching&&o<=a-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this}))}else null!==o&&null!==(r=e.getPose(t.targetRaySpace,n))&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale)),null!==a&&t.gripSpace&&null!==(i=e.getPose(t.gripSpace,n))&&(a.matrix.fromArray(i.transform.matrix),a.matrix.decompose(a.position,a.rotation,a.scale));return null!==o&&(o.visible=null!==r),null!==a&&(a.visible=null!==i),null!==l&&(l.visible=null!==s),this}}),Object.assign(ph.prototype,In.prototype);class gh extends fh{}exports.WebGL1Renderer=gh,gh.prototype.isWebGL1Renderer=!0;class xh{constructor(t,e){this.name="",this.color=new xi(t),this.density=void 0!==e?e:25e-5}clone(){return new xh(this.color,this.density)}toJSON(){return{type:"FogExp2",color:this.color.getHex(),density:this.density}}}exports.FogExp2=xh,xh.prototype.isFogExp2=!0;class vh{constructor(t,e,n){this.name="",this.color=new xi(t),this.near=void 0!==e?e:1,this.far=void 0!==n?n:1e3}clone(){return new vh(this.color,this.near,this.far)}toJSON(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}}}exports.Fog=vh,vh.prototype.isFog=!0;class yh extends Xr{constructor(){super(),this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.overrideMaterial=null,this.autoUpdate=!0,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){return super.copy(t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.environment&&(this.environment=t.environment.clone()),null!==t.fog&&(this.fog=t.fog.clone()),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.autoUpdate=t.autoUpdate,this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){const e=super.toJSON(t);return null!==this.background&&(e.object.background=this.background.toJSON(t)),null!==this.environment&&(e.object.environment=this.environment.toJSON(t)),null!==this.fog&&(e.object.fog=this.fog.toJSON()),e}}function _h(t,e){this.array=t,this.stride=e,this.count=void 0!==t?t.length/e:0,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0,this.uuid=Fn.generateUUID()}exports.Scene=yh,yh.prototype.isScene=!0,Object.defineProperty(_h.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(_h.prototype,{isInterleavedBuffer:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.stride,n*=e.stride;for(let r=0,i=this.stride;r<i;r++)this.array[t+r]=e.array[n+r];return this},set:function(t,e=0){return this.array.set(t,e),this},clone:function(t){void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer);const e=new _h(new this.array.constructor(t.arrayBuffers[this.array.buffer._uuid]),this.stride);return e.setUsage(this.usage),e},onUpload:function(t){return this.onUploadCallback=t,this},toJSON:function(t){return void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=Array.prototype.slice.call(new Uint32Array(this.array.buffer))),{uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride}}});const bh=new Yn;function wh(t,e,n,r){this.name="",this.data=t,this.itemSize=e,this.offset=n,this.normalized=!0===r}Object.defineProperties(wh.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}},needsUpdate:{set:function(t){this.data.needsUpdate=t}}}),Object.assign(wh.prototype,{isInterleavedBufferAttribute:!0,applyMatrix4:function(t){for(let e=0,n=this.data.count;e<n;e++)bh.x=this.getX(e),bh.y=this.getY(e),bh.z=this.getZ(e),bh.applyMatrix4(t),this.setXYZ(e,bh.x,bh.y,bh.z);return this},setX:function(t,e){return this.data.array[t*this.data.stride+this.offset]=e,this},setY:function(t,e){return this.data.array[t*this.data.stride+this.offset+1]=e,this},setZ:function(t,e){return this.data.array[t*this.data.stride+this.offset+2]=e,this},setW:function(t,e){return this.data.array[t*this.data.stride+this.offset+3]=e,this},getX:function(t){return this.data.array[t*this.data.stride+this.offset]},getY:function(t){return this.data.array[t*this.data.stride+this.offset+1]},getZ:function(t){return this.data.array[t*this.data.stride+this.offset+2]},getW:function(t){return this.data.array[t*this.data.stride+this.offset+3]},setXY:function(t,e,n){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this.data.array[t+3]=i,this},clone:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return new bi(new this.array.constructor(t),this.itemSize,this.normalized)}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.clone(t)),new wh(t.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized)},toJSON:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return{itemSize:this.itemSize,type:this.array.constructor.name,array:t,normalized:this.normalized}}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}});class Mh extends hi{constructor(t){super(),this.type="SpriteMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.rotation=0,this.sizeAttenuation=!0,this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.rotation=t.rotation,this.sizeAttenuation=t.sizeAttenuation,this}}let Sh;exports.SpriteMaterial=Mh,Mh.prototype.isSpriteMaterial=!0;const Th=new Yn,Eh=new Yn,Ah=new Yn,Lh=new On,Rh=new On,Ch=new wr,Ph=new Yn,Dh=new Yn,Ih=new Yn,Bh=new On,Nh=new On,Fh=new On;class Oh extends Xr{constructor(t){if(super(),this.type="Sprite",void 0===Sh){Sh=new ki;const t=new _h(new Float32Array([-.5,-.5,0,0,0,.5,-.5,0,1,0,.5,.5,0,1,1,-.5,.5,0,0,1]),5);Sh.setIndex([0,1,2,0,2,3]),Sh.setAttribute("position",new wh(t,3,0,!1)),Sh.setAttribute("uv",new wh(t,2,3,!1))}this.geometry=Sh,this.material=void 0!==t?t:new Mh,this.center=new On(.5,.5)}raycast(t,e){null===t.camera&&console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.'),Eh.setFromMatrixScale(this.matrixWorld),Ch.copy(t.camera.matrixWorld),this.modelViewMatrix.multiplyMatrices(t.camera.matrixWorldInverse,this.matrixWorld),Ah.setFromMatrixPosition(this.modelViewMatrix),t.camera.isPerspectiveCamera&&!1===this.material.sizeAttenuation&&Eh.multiplyScalar(-Ah.z);const n=this.material.rotation;let r,i;0!==n&&(i=Math.cos(n),r=Math.sin(n));const s=this.center;zh(Ph.set(-.5,-.5,0),Ah,s,Eh,r,i),zh(Dh.set(.5,-.5,0),Ah,s,Eh,r,i),zh(Ih.set(.5,.5,0),Ah,s,Eh,r,i),Bh.set(0,0),Nh.set(1,0),Fh.set(1,1);let o=t.ray.intersectTriangle(Ph,Dh,Ih,!1,Th);if(null===o&&(zh(Dh.set(-.5,.5,0),Ah,s,Eh,r,i),Nh.set(0,1),null===(o=t.ray.intersectTriangle(Ph,Ih,Dh,!1,Th))))return;const a=t.ray.origin.distanceTo(Th);a<t.near||a>t.far||e.push({distance:a,point:Th.clone(),uv:li.getUV(Th,Ph,Dh,Ih,Bh,Nh,Fh,new On),face:null,object:this})}copy(t){return super.copy(t),void 0!==t.center&&this.center.copy(t.center),this.material=t.material,this}}function zh(t,e,n,r,i,s){Lh.subVectors(t,n).addScalar(.5).multiply(r),void 0!==i?(Rh.x=s*Lh.x-i*Lh.y,Rh.y=i*Lh.x+s*Lh.y):Rh.copy(Lh),t.copy(e),t.x+=Rh.x,t.y+=Rh.y,t.applyMatrix4(Ch)}exports.Sprite=Oh,Oh.prototype.isSprite=!0;const Gh=new Yn,Hh=new Yn;class Uh extends Xr{constructor(){super(),this._currentLevel=0,this.type="LOD",Object.defineProperties(this,{levels:{enumerable:!0,value:[]},isLOD:{value:!0}}),this.autoUpdate=!0}copy(t){super.copy(t,!1);const e=t.levels;for(let n=0,r=e.length;n<r;n++){const t=e[n];this.addLevel(t.object.clone(),t.distance)}return this.autoUpdate=t.autoUpdate,this}addLevel(t,e=0){e=Math.abs(e);const n=this.levels;let r;for(r=0;r<n.length&&!(e<n[r].distance);r++);return n.splice(r,0,{distance:e,object:t}),this.add(t),this}getCurrentLevel(){return this._currentLevel}getObjectForDistance(t){const e=this.levels;if(e.length>0){let n,r;for(n=1,r=e.length;n<r&&!(t<e[n].distance);n++);return e[n-1].object}return null}raycast(t,e){if(this.levels.length>0){Gh.setFromMatrixPosition(this.matrixWorld);const n=t.ray.origin.distanceTo(Gh);this.getObjectForDistance(n).raycast(t,e)}}update(t){const e=this.levels;if(e.length>1){Gh.setFromMatrixPosition(t.matrixWorld),Hh.setFromMatrixPosition(this.matrixWorld);const n=Gh.distanceTo(Hh)/t.zoom;let r,i;for(e[0].object.visible=!0,r=1,i=e.length;r<i&&n>=e[r].distance;r++)e[r-1].object.visible=!1,e[r].object.visible=!0;for(this._currentLevel=r-1;r<i;r++)e[r].object.visible=!1}}toJSON(t){const e=super.toJSON(t);!1===this.autoUpdate&&(e.object.autoUpdate=!1),e.object.levels=[];const n=this.levels;for(let r=0,i=n.length;r<i;r++){const t=n[r];e.object.levels.push({object:t.object.uuid,distance:t.distance})}return e}}exports.LOD=Uh;const kh=new Yn,Vh=new Wn,Wh=new Wn,jh=new Yn,qh=new wr;function Xh(t,e){os.call(this,t,e),this.type="SkinnedMesh",this.bindMode="attached",this.bindMatrix=new wr,this.bindMatrixInverse=new wr}function Yh(){Xr.call(this),this.type="Bone"}Xh.prototype=Object.assign(Object.create(os.prototype),{constructor:Xh,isSkinnedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.bindMode=t.bindMode,this.bindMatrix.copy(t.bindMatrix),this.bindMatrixInverse.copy(t.bindMatrixInverse),this.skeleton=t.skeleton,this},bind:function(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.copy(e).invert()},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){const t=new Wn,e=this.geometry.attributes.skinWeight;for(let n=0,r=e.count;n<r;n++){t.x=e.getX(n),t.y=e.getY(n),t.z=e.getZ(n),t.w=e.getW(n);const r=1/t.manhattanLength();r!==1/0?t.multiplyScalar(r):t.set(1,0,0,0),e.setXYZW(n,t.x,t.y,t.z,t.w)}},updateMatrixWorld:function(t){os.prototype.updateMatrixWorld.call(this,t),"attached"===this.bindMode?this.bindMatrixInverse.copy(this.matrixWorld).invert():"detached"===this.bindMode?this.bindMatrixInverse.copy(this.bindMatrix).invert():console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)},boneTransform:function(t,e){const n=this.skeleton,r=this.geometry;Vh.fromBufferAttribute(r.attributes.skinIndex,t),Wh.fromBufferAttribute(r.attributes.skinWeight,t),kh.fromBufferAttribute(r.attributes.position,t).applyMatrix4(this.bindMatrix),e.set(0,0,0);for(let i=0;i<4;i++){const t=Wh.getComponent(i);if(0!==t){const r=Vh.getComponent(i);qh.multiplyMatrices(n.bones[r].matrixWorld,n.boneInverses[r]),e.addScaledVector(jh.copy(kh).applyMatrix4(qh),t)}}return e.applyMatrix4(this.bindMatrixInverse)}}),Yh.prototype=Object.assign(Object.create(Xr.prototype),{constructor:Yh,isBone:!0});const Zh=new wr,Jh=new wr;class Qh{constructor(t=[],e=[]){this.uuid=Fn.generateUUID(),this.bones=t.slice(0),this.boneInverses=e,this.boneMatrices=null,this.boneTexture=null,this.boneTextureSize=0,this.frame=-1,this.init()}init(){const t=this.bones,e=this.boneInverses;if(this.boneMatrices=new Float32Array(16*t.length),0===e.length)this.calculateInverses();else if(t.length!==e.length){console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones."),this.boneInverses=[];for(let t=0,e=this.bones.length;t<e;t++)this.boneInverses.push(new wr)}}calculateInverses(){this.boneInverses.length=0;for(let t=0,e=this.bones.length;t<e;t++){const e=new wr;this.bones[t]&&e.copy(this.bones[t].matrixWorld).invert(),this.boneInverses.push(e)}}pose(){for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&e.matrixWorld.copy(this.boneInverses[t]).invert()}for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&(e.parent&&e.parent.isBone?(e.matrix.copy(e.parent.matrixWorld).invert(),e.matrix.multiply(e.matrixWorld)):e.matrix.copy(e.matrixWorld),e.matrix.decompose(e.position,e.quaternion,e.scale))}}update(){const t=this.bones,e=this.boneInverses,n=this.boneMatrices,r=this.boneTexture;for(let i=0,s=t.length;i<s;i++){const r=t[i]?t[i].matrixWorld:Jh;Zh.multiplyMatrices(r,e[i]),Zh.toArray(n,16*i)}null!==r&&(r.needsUpdate=!0)}clone(){return new Qh(this.bones,this.boneInverses)}getBoneByName(t){for(let e=0,n=this.bones.length;e<n;e++){const n=this.bones[e];if(n.name===t)return n}}dispose(){null!==this.boneTexture&&(this.boneTexture.dispose(),this.boneTexture=null)}fromJSON(t,e){this.uuid=t.uuid;for(let n=0,r=t.bones.length;n<r;n++){const r=t.bones[n];let i=e[r];void 0===i&&(console.warn("THREE.Skeleton: No bone found with UUID:",r),i=new Yh),this.bones.push(i),this.boneInverses.push((new wr).fromArray(t.boneInverses[n]))}return this.init(),this}toJSON(){const t={metadata:{version:4.5,type:"Skeleton",generator:"Skeleton.toJSON"},bones:[],boneInverses:[]};t.uuid=this.uuid;const e=this.bones,n=this.boneInverses;for(let r=0,i=e.length;r<i;r++){const i=e[r];t.bones.push(i.uuid);const s=n[r];t.boneInverses.push(s.toArray())}return t}}exports.Skeleton=Qh;const Kh=new wr,$h=new wr,tu=[],eu=new os;function nu(t,e,n){os.call(this,t,e),this.instanceMatrix=new bi(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.frustumCulled=!1}nu.prototype=Object.assign(Object.create(os.prototype),{constructor:nu,isInstancedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.instanceMatrix.copy(t.instanceMatrix),null!==t.instanceColor&&(this.instanceColor=t.instanceColor.clone()),this.count=t.count,this},getColorAt:function(t,e){e.fromArray(this.instanceColor.array,3*t)},getMatrixAt:function(t,e){e.fromArray(this.instanceMatrix.array,16*t)},raycast:function(t,e){const n=this.matrixWorld,r=this.count;if(eu.geometry=this.geometry,eu.material=this.material,void 0!==eu.material)for(let i=0;i<r;i++){this.getMatrixAt(i,Kh),$h.multiplyMatrices(n,Kh),eu.matrixWorld=$h,eu.raycast(t,tu);for(let t=0,n=tu.length;t<n;t++){const n=tu[t];n.instanceId=i,n.object=this,e.push(n)}tu.length=0}},setColorAt:function(t,e){null===this.instanceColor&&(this.instanceColor=new bi(new Float32Array(3*this.count),3)),e.toArray(this.instanceColor.array,3*t)},setMatrixAt:function(t,e){e.toArray(this.instanceMatrix.array,16*t)},updateMorphTargets:function(){},dispose:function(){this.dispatchEvent({type:"dispose"})}});class ru extends hi{constructor(t){super(),this.type="LineBasicMaterial",this.color=new xi(16777215),this.linewidth=1,this.linecap="round",this.linejoin="round",this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this.morphTargets=t.morphTargets,this}}exports.LineBasicMaterial=ru,ru.prototype.isLineBasicMaterial=!0;const iu=new Yn,su=new Yn,ou=new wr,au=new br,lu=new dr;function cu(t=new ki,e=new ru){Xr.call(this),this.type="Line",this.geometry=t,this.material=e,this.updateMorphTargets()}cu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:cu,isLine:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[0];for(let t=1,r=e.count;t<r;t++)iu.fromBufferAttribute(e,t-1),su.fromBufferAttribute(e,t),n[t]=n[t-1],n[t]+=iu.distanceTo(su);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Line.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),lu.copy(n.boundingSphere),lu.applyMatrix4(r),lu.radius+=i,!1===t.ray.intersectsSphere(lu))return;ou.copy(r).invert(),au.copy(t.ray).applyMatrix4(ou);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s,a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=this.isLineSegments?2:1;if(n.isBufferGeometry){const r=n.index,i=n.attributes.position;if(null!==r){const n=r.array;for(let r=0,s=n.length-1;r<s;r+=u){const s=n[r],u=n[r+1];if(a.fromBufferAttribute(i,s),l.fromBufferAttribute(i,u),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const p=t.ray.origin.distanceTo(h);p<t.near||p>t.far||e.push({distance:p,point:c.clone().applyMatrix4(this.matrixWorld),index:r,face:null,faceIndex:null,object:this})}}else for(let n=0,s=i.count-1;n<s;n+=u){if(a.fromBufferAttribute(i,n),l.fromBufferAttribute(i,n+1),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const r=t.ray.origin.distanceTo(h);r<t.near||r>t.far||e.push({distance:r,point:c.clone().applyMatrix4(this.matrixWorld),index:n,face:null,faceIndex:null,object:this})}}else n.isGeometry&&console.error("THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});const hu=new Yn,uu=new Yn;function pu(t,e){cu.call(this,t,e),this.type="LineSegments"}pu.prototype=Object.assign(Object.create(cu.prototype),{constructor:pu,isLineSegments:!0,computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[];for(let t=0,r=e.count;t<r;t+=2)hu.fromBufferAttribute(e,t),uu.fromBufferAttribute(e,t+1),n[t]=0===t?0:n[t-1],n[t+1]=n[t]+hu.distanceTo(uu);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this}});class du extends cu{constructor(t,e){super(t,e),this.type="LineLoop"}}exports.LineLoop=du,du.prototype.isLineLoop=!0;class mu extends hi{constructor(t){super(),this.type="PointsMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.size=1,this.sizeAttenuation=!0,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this.morphTargets=t.morphTargets,this}}exports.PointsMaterial=mu,mu.prototype.isPointsMaterial=!0;const fu=new wr,gu=new br,xu=new dr,vu=new Yn;function yu(t=new ki,e=new mu){Xr.call(this),this.type="Points",this.geometry=t,this.material=e,this.updateMorphTargets()}function _u(t,e,n,r,i,s,o){const a=gu.distanceSqToPoint(t);if(a<n){const n=new Yn;gu.closestPointToPoint(t,n),n.applyMatrix4(r);const l=i.ray.origin.distanceTo(n);if(l<i.near||l>i.far)return;s.push({distance:l,distanceToRay:Math.sqrt(a),point:n,index:e,face:null,object:o})}}yu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:yu,isPoints:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Points.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),xu.copy(n.boundingSphere),xu.applyMatrix4(r),xu.radius+=i,!1===t.ray.intersectsSphere(xu))return;fu.copy(r).invert(),gu.copy(t.ray).applyMatrix4(fu);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s;if(n.isBufferGeometry){const i=n.index,s=n.attributes.position;if(null!==i){const n=i.array;for(let i=0,a=n.length;i<a;i++){const a=n[i];vu.fromBufferAttribute(s,a),_u(vu,a,o,r,t,e,this)}}else for(let n=0,a=s.count;n<a;n++)vu.fromBufferAttribute(s,n),_u(vu,n,o,r,t,e,this)}else console.error("THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});class bu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.format=void 0!==o?o:Bt,this.minFilter=void 0!==s?s:gt,this.magFilter=void 0!==i?i:gt,this.generateMipmaps=!1;const c=this;"requestVideoFrameCallback"in t&&t.requestVideoFrameCallback(function e(){c.needsUpdate=!0,t.requestVideoFrameCallback(e)})}clone(){return new this.constructor(this.image).copy(this)}update(){const t=this.image;!1==="requestVideoFrameCallback"in t&&t.readyState>=t.HAVE_CURRENT_DATA&&(this.needsUpdate=!0)}}exports.VideoTexture=bu,bu.prototype.isVideoTexture=!0;class wu extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={width:e,height:n},this.mipmaps=t,this.flipY=!1,this.generateMipmaps=!1}}exports.CompressedTexture=wu,wu.prototype.isCompressedTexture=!0;class Mu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.needsUpdate=!0}}exports.CanvasTexture=Mu,Mu.prototype.isCanvasTexture=!0;class Su extends kn{constructor(t,e,n,r,i,s,o,a,l,c){if((c=void 0!==c?c:Gt)!==Gt&&c!==Ht)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===Gt&&(n=St),void 0===n&&c===Ht&&(n=Dt),super(null,r,i,s,o,a,c,n,l),this.image={width:t,height:e},this.magFilter=void 0!==o?o:ut,this.minFilter=void 0!==a?a:ut,this.flipY=!1,this.generateMipmaps=!1}}exports.DepthTexture=Su,Su.prototype.isDepthTexture=!0;class Tu extends ki{constructor(t=1,e=8,n=0,r=2*Math.PI){super(),this.type="CircleGeometry",this.parameters={radius:t,segments:e,thetaStart:n,thetaLength:r},e=Math.max(3,e);const i=[],s=[],o=[],a=[],l=new Yn,c=new On;s.push(0,0,0),o.push(0,0,1),a.push(.5,.5);for(let h=0,u=3;h<=e;h++,u+=3){const i=n+h/e*r;l.x=t*Math.cos(i),l.y=t*Math.sin(i),s.push(l.x,l.y,l.z),o.push(0,0,1),c.x=(s[u]/t+1)/2,c.y=(s[u+1]/t+1)/2,a.push(c.x,c.y)}for(let h=1;h<=e;h++)i.push(h,h+1,0);this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("normal",new Ci(o,3)),this.setAttribute("uv",new Ci(a,2))}}exports.CircleGeometry=exports.CircleBufferGeometry=Tu;class Eu extends ki{constructor(t=1,e=1,n=1,r=8,i=1,s=!1,o=0,a=2*Math.PI){super(),this.type="CylinderGeometry",this.parameters={radiusTop:t,radiusBottom:e,height:n,radialSegments:r,heightSegments:i,openEnded:s,thetaStart:o,thetaLength:a};const l=this;r=Math.floor(r),i=Math.floor(i);const c=[],h=[],u=[],p=[];let d=0;const m=[],f=n/2;let g=0;function x(n){const i=d,s=new On,m=new Yn;let x=0;const v=!0===n?t:e,y=!0===n?1:-1;for(let t=1;t<=r;t++)h.push(0,f*y,0),u.push(0,y,0),p.push(.5,.5),d++;const _=d;for(let t=0;t<=r;t++){const e=t/r*a+o,n=Math.cos(e),i=Math.sin(e);m.x=v*i,m.y=f*y,m.z=v*n,h.push(m.x,m.y,m.z),u.push(0,y,0),s.x=.5*n+.5,s.y=.5*i*y+.5,p.push(s.x,s.y),d++}for(let t=0;t<r;t++){const e=i+t,r=_+t;!0===n?c.push(r,r+1,e):c.push(r+1,r,e),x+=3}l.addGroup(g,x,!0===n?1:2),g+=x}!function(){const s=new Yn,x=new Yn;let v=0;const y=(e-t)/n;for(let l=0;l<=i;l++){const c=[],g=l/i,v=g*(e-t)+t;for(let t=0;t<=r;t++){const e=t/r,i=e*a+o,l=Math.sin(i),m=Math.cos(i);x.x=v*l,x.y=-g*n+f,x.z=v*m,h.push(x.x,x.y,x.z),s.set(l,y,m).normalize(),u.push(s.x,s.y,s.z),p.push(e,1-g),c.push(d++)}m.push(c)}for(let t=0;t<r;t++)for(let e=0;e<i;e++){const n=m[e][t],r=m[e+1][t],i=m[e+1][t+1],s=m[e][t+1];c.push(n,r,s),c.push(r,i,s),v+=6}l.addGroup(g,v,0),g+=v}(),!1===s&&(t>0&&x(!0),e>0&&x(!1)),this.setIndex(c),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}}exports.CylinderGeometry=exports.CylinderBufferGeometry=Eu;class Au extends Eu{constructor(t=1,e=1,n=8,r=1,i=!1,s=0,o=2*Math.PI){super(0,t,e,n,r,i,s,o),this.type="ConeGeometry",this.parameters={radius:t,height:e,radialSegments:n,heightSegments:r,openEnded:i,thetaStart:s,thetaLength:o}}}exports.ConeGeometry=exports.ConeBufferGeometry=Au;class Lu extends ki{constructor(t,e,n=1,r=0){super(),this.type="PolyhedronGeometry",this.parameters={vertices:t,indices:e,radius:n,detail:r};const i=[],s=[];function o(t,e,n,r){const i=r+1,s=[];for(let o=0;o<=i;o++){s[o]=[];const r=t.clone().lerp(n,o/i),a=e.clone().lerp(n,o/i),l=i-o;for(let t=0;t<=l;t++)s[o][t]=0===t&&o===i?r:r.clone().lerp(a,t/l)}for(let o=0;o<i;o++)for(let t=0;t<2*(i-o)-1;t++){const e=Math.floor(t/2);t%2==0?(a(s[o][e+1]),a(s[o+1][e]),a(s[o][e])):(a(s[o][e+1]),a(s[o+1][e+1]),a(s[o+1][e]))}}function a(t){i.push(t.x,t.y,t.z)}function l(e,n){const r=3*e;n.x=t[r+0],n.y=t[r+1],n.z=t[r+2]}function c(t,e,n,r){r<0&&1===t.x&&(s[e]=t.x-1),0===n.x&&0===n.z&&(s[e]=r/2/Math.PI+.5)}function h(t){return Math.atan2(t.z,-t.x)}!function(t){const n=new Yn,r=new Yn,i=new Yn;for(let s=0;s<e.length;s+=3)l(e[s+0],n),l(e[s+1],r),l(e[s+2],i),o(n,r,i,t)}(r),function(t){const e=new Yn;for(let n=0;n<i.length;n+=3)e.x=i[n+0],e.y=i[n+1],e.z=i[n+2],e.normalize().multiplyScalar(t),i[n+0]=e.x,i[n+1]=e.y,i[n+2]=e.z}(n),function(){const t=new Yn;for(let n=0;n<i.length;n+=3){t.x=i[n+0],t.y=i[n+1],t.z=i[n+2];const r=h(t)/2/Math.PI+.5,o=(e=t,Math.atan2(-e.y,Math.sqrt(e.x*e.x+e.z*e.z))/Math.PI+.5);s.push(r,1-o)}var e;(function(){const t=new Yn,e=new Yn,n=new Yn,r=new Yn,o=new On,a=new On,l=new On;for(let u=0,p=0;u<i.length;u+=9,p+=6){t.set(i[u+0],i[u+1],i[u+2]),e.set(i[u+3],i[u+4],i[u+5]),n.set(i[u+6],i[u+7],i[u+8]),o.set(s[p+0],s[p+1]),a.set(s[p+2],s[p+3]),l.set(s[p+4],s[p+5]),r.copy(t).add(e).add(n).divideScalar(3);const d=h(r);c(o,p+0,t,d),c(a,p+2,e,d),c(l,p+4,n,d)}})(),function(){for(let t=0;t<s.length;t+=6){const e=s[t+0],n=s[t+2],r=s[t+4],i=Math.max(e,n,r),o=Math.min(e,n,r);i>.9&&o<.1&&(e<.2&&(s[t+0]+=1),n<.2&&(s[t+2]+=1),r<.2&&(s[t+4]+=1))}}()}(),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(i.slice(),3)),this.setAttribute("uv",new Ci(s,2)),0===r?this.computeVertexNormals():this.normalizeNormals()}}exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=Lu;class Ru extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2,r=1/n;super([-1,-1,-1,-1,-1,1,-1,1,-1,-1,1,1,1,-1,-1,1,-1,1,1,1,-1,1,1,1,0,-r,-n,0,-r,n,0,r,-n,0,r,n,-r,-n,0,-r,n,0,r,-n,0,r,n,0,-n,0,-r,n,0,-r,-n,0,r,n,0,r],[3,11,7,3,7,15,3,15,13,7,19,17,7,17,6,7,6,15,17,4,8,17,8,10,17,10,6,8,0,16,8,16,2,8,2,10,0,12,1,0,1,18,0,18,16,6,10,2,6,2,13,6,13,15,2,16,18,2,18,3,2,3,13,18,1,9,18,9,11,18,11,3,4,14,12,4,12,0,4,0,8,11,9,5,11,5,19,11,19,7,19,5,14,19,14,4,19,4,17,1,12,14,1,14,5,1,5,9],t,e),this.type="DodecahedronGeometry",this.parameters={radius:t,detail:e}}}exports.DodecahedronGeometry=exports.DodecahedronBufferGeometry=Ru;const Cu=new Yn,Pu=new Yn,Du=new Yn,Iu=new li;class Bu extends ki{constructor(t,e){if(super(),this.type="EdgesGeometry",this.parameters={thresholdAngle:e},e=void 0!==e?e:1,!0===t.isGeometry)return void console.error("THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const n=Math.pow(10,4),r=Math.cos(Fn.DEG2RAD*e),i=t.getIndex(),s=t.getAttribute("position"),o=i?i.count:s.count,a=[0,0,0],l=["a","b","c"],c=new Array(3),h={},u=[];for(let p=0;p<o;p+=3){i?(a[0]=i.getX(p),a[1]=i.getX(p+1),a[2]=i.getX(p+2)):(a[0]=p,a[1]=p+1,a[2]=p+2);const{a:t,b:e,c:o}=Iu;if(t.fromBufferAttribute(s,a[0]),e.fromBufferAttribute(s,a[1]),o.fromBufferAttribute(s,a[2]),Iu.getNormal(Du),c[0]=`${Math.round(t.x*n)},${Math.round(t.y*n)},${Math.round(t.z*n)}`,c[1]=`${Math.round(e.x*n)},${Math.round(e.y*n)},${Math.round(e.z*n)}`,c[2]=`${Math.round(o.x*n)},${Math.round(o.y*n)},${Math.round(o.z*n)}`,c[0]!==c[1]&&c[1]!==c[2]&&c[2]!==c[0])for(let n=0;n<3;n++){const t=(n+1)%3,e=c[n],i=c[t],s=Iu[l[n]],o=Iu[l[t]],p=`${e}_${i}`,d=`${i}_${e}`;d in h&&h[d]?(Du.dot(h[d].normal)<=r&&(u.push(s.x,s.y,s.z),u.push(o.x,o.y,o.z)),h[d]=null):p in h||(h[p]={index0:a[n],index1:a[t],normal:Du.clone()})}}for(const p in h)if(h[p]){const{index0:t,index1:e}=h[p];Cu.fromBufferAttribute(s,t),Pu.fromBufferAttribute(s,e),u.push(Cu.x,Cu.y,Cu.z),u.push(Pu.x,Pu.y,Pu.z)}this.setAttribute("position",new Ci(u,3))}}exports.EdgesGeometry=Bu;const Nu={triangulate:function(t,e,n){n=n||2;const r=e&&e.length,i=r?e[0]*n:t.length;let s=Fu(t,0,i,n,!0);const o=[];if(!s||s.next===s.prev)return o;let a,l,c,h,u,p,d;if(r&&(s=Vu(t,e,s,n)),t.length>80*n){a=c=t[0],l=h=t[1];for(let e=n;e<i;e+=n)(u=t[e])<a&&(a=u),(p=t[e+1])<l&&(l=p),u>c&&(c=u),p>h&&(h=p);d=0!==(d=Math.max(c-a,h-l))?1/d:0}return zu(s,o,n,a,l,d),o}};function Fu(t,e,n,r,i){let s,o;if(i===pp(t,e,n,r)>0)for(s=e;s<n;s+=r)o=cp(s,t[s],t[s+1],o);else for(s=n-r;s>=e;s-=r)o=cp(s,t[s],t[s+1],o);return o&&ep(o,o.next)&&(hp(o),o=o.next),o}function Ou(t,e){if(!t)return t;e||(e=t);let n,r=t;do{if(n=!1,r.steiner||!ep(r,r.next)&&0!==tp(r.prev,r,r.next))r=r.next;else{if(hp(r),(r=e=r.prev)===r.next)break;n=!0}}while(n||r!==e);return e}function zu(t,e,n,r,i,s,o){if(!t)return;!o&&s&&Yu(t,r,i,s);let a,l,c=t;for(;t.prev!==t.next;)if(a=t.prev,l=t.next,s?Hu(t,r,i,s):Gu(t))e.push(a.i/n),e.push(t.i/n),e.push(l.i/n),hp(t),t=l.next,c=l.next;else if((t=l)===c){o?1===o?zu(t=Uu(Ou(t),e,n),e,n,r,i,s,2):2===o&&ku(t,e,n,r,i,s):zu(Ou(t),e,n,r,i,s,1);break}}function Gu(t){const e=t.prev,n=t,r=t.next;if(tp(e,n,r)>=0)return!1;let i=t.next.next;for(;i!==t.prev;){if(Ku(e.x,e.y,n.x,n.y,r.x,r.y,i.x,i.y)&&tp(i.prev,i,i.next)>=0)return!1;i=i.next}return!0}function Hu(t,e,n,r){const i=t.prev,s=t,o=t.next;if(tp(i,s,o)>=0)return!1;const a=i.x<s.x?i.x<o.x?i.x:o.x:s.x<o.x?s.x:o.x,l=i.y<s.y?i.y<o.y?i.y:o.y:s.y<o.y?s.y:o.y,c=i.x>s.x?i.x>o.x?i.x:o.x:s.x>o.x?s.x:o.x,h=i.y>s.y?i.y>o.y?i.y:o.y:s.y>o.y?s.y:o.y,u=Ju(a,l,e,n,r),p=Ju(c,h,e,n,r);let d=t.prevZ,m=t.nextZ;for(;d&&d.z>=u&&m&&m.z<=p;){if(d!==t.prev&&d!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,d.x,d.y)&&tp(d.prev,d,d.next)>=0)return!1;if(d=d.prevZ,m!==t.prev&&m!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,m.x,m.y)&&tp(m.prev,m,m.next)>=0)return!1;m=m.nextZ}for(;d&&d.z>=u;){if(d!==t.prev&&d!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,d.x,d.y)&&tp(d.prev,d,d.next)>=0)return!1;d=d.prevZ}for(;m&&m.z<=p;){if(m!==t.prev&&m!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,m.x,m.y)&&tp(m.prev,m,m.next)>=0)return!1;m=m.nextZ}return!0}function Uu(t,e,n){let r=t;do{const i=r.prev,s=r.next.next;!ep(i,s)&&np(i,r,r.next,s)&&op(i,s)&&op(s,i)&&(e.push(i.i/n),e.push(r.i/n),e.push(s.i/n),hp(r),hp(r.next),r=t=s),r=r.next}while(r!==t);return Ou(r)}function ku(t,e,n,r,i,s){let o=t;do{let t=o.next.next;for(;t!==o.prev;){if(o.i!==t.i&&$u(o,t)){let a=lp(o,t);return o=Ou(o,o.next),a=Ou(a,a.next),zu(o,e,n,r,i,s),void zu(a,e,n,r,i,s)}t=t.next}o=o.next}while(o!==t)}function Vu(t,e,n,r){const i=[];let 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i=t;do{null===i.z&&(i.z=Ju(i.x,i.y,e,n,r)),i.prevZ=i.prev,i.nextZ=i.next,i=i.next}while(i!==t);i.prevZ.nextZ=null,i.prevZ=null,Zu(i)}function Zu(t){let e,n,r,i,s,o,a,l,c=1;do{for(n=t,t=null,s=null,o=0;n;){for(o++,r=n,a=0,e=0;e<c&&(a++,r=r.nextZ);e++);for(l=c;a>0||l>0&&r;)0!==a&&(0===l||!r||n.z<=r.z)?(i=n,n=n.nextZ,a--):(i=r,r=r.nextZ,l--),s?s.nextZ=i:t=i,i.prevZ=s,s=i;n=r}s.nextZ=null,c*=2}while(o>1);return t}function Ju(t,e,n,r,i){return(t=1431655765&((t=858993459&((t=252645135&((t=16711935&((t=32767*(t-n)*i)|t<<8))|t<<4))|t<<2))|t<<1))|(e=1431655765&((e=858993459&((e=252645135&((e=16711935&((e=32767*(e-r)*i)|e<<8))|e<<4))|e<<2))|e<<1))<<1}function Qu(t){let e=t,n=t;do{(e.x<n.x||e.x===n.x&&e.y<n.y)&&(n=e),e=e.next}while(e!==t);return n}function Ku(t,e,n,r,i,s,o,a){return(i-o)*(e-a)-(t-o)*(s-a)>=0&&(t-o)*(r-a)-(n-o)*(e-a)>=0&&(n-o)*(s-a)-(i-o)*(r-a)>=0}function $u(t,e){return t.next.i!==e.i&&t.prev.i!==e.i&&!sp(t,e)&&(op(t,e)&&op(e,t)&&ap(t,e)&&(tp(t.prev,t,e.prev)||tp(t,e.prev,e))||ep(t,e)&&tp(t.prev,t,t.next)>0&&tp(e.prev,e,e.next)>0)}function tp(t,e,n){return(e.y-t.y)*(n.x-e.x)-(e.x-t.x)*(n.y-e.y)}function ep(t,e){return t.x===e.x&&t.y===e.y}function np(t,e,n,r){const i=ip(tp(t,e,n)),s=ip(tp(t,e,r)),o=ip(tp(n,r,t)),a=ip(tp(n,r,e));return i!==s&&o!==a||(!(0!==i||!rp(t,n,e))||(!(0!==s||!rp(t,r,e))||(!(0!==o||!rp(n,t,r))||!(0!==a||!rp(n,e,r)))))}function rp(t,e,n){return e.x<=Math.max(t.x,n.x)&&e.x>=Math.min(t.x,n.x)&&e.y<=Math.max(t.y,n.y)&&e.y>=Math.min(t.y,n.y)}function ip(t){return t>0?1:t<0?-1:0}function sp(t,e){let n=t;do{if(n.i!==t.i&&n.next.i!==t.i&&n.i!==e.i&&n.next.i!==e.i&&np(n,n.next,t,e))return!0;n=n.next}while(n!==t);return!1}function op(t,e){return tp(t.prev,t,t.next)<0?tp(t,e,t.next)>=0&&tp(t,t.prev,e)>=0:tp(t,e,t.prev)<0||tp(t,t.next,e)<0}function ap(t,e){let n=t,r=!1;const i=(t.x+e.x)/2,s=(t.y+e.y)/2;do{n.y>s!=n.next.y>s&&n.next.y!==n.y&&i<(n.next.x-n.x)*(s-n.y)/(n.next.y-n.y)+n.x&&(r=!r),n=n.next}while(n!==t);return r}function lp(t,e){const n=new up(t.i,t.x,t.y),r=new up(e.i,e.x,e.y),i=t.next,s=e.prev;return t.next=e,e.prev=t,n.next=i,i.prev=n,r.next=n,n.prev=r,s.next=r,r.prev=s,r}function cp(t,e,n,r){const i=new up(t,e,n);return r?(i.next=r.next,i.prev=r,r.next.prev=i,r.next=i):(i.prev=i,i.next=i),i}function hp(t){t.next.prev=t.prev,t.prev.next=t.next,t.prevZ&&(t.prevZ.nextZ=t.nextZ),t.nextZ&&(t.nextZ.prevZ=t.prevZ)}function up(t,e,n){this.i=t,this.x=e,this.y=n,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1}function pp(t,e,n,r){let i=0;for(let s=e,o=n-r;s<n;s+=r)i+=(t[o]-t[s])*(t[s+1]+t[o+1]),o=s;return i}const dp={area:function(t){const e=t.length;let n=0;for(let r=e-1,i=0;i<e;r=i++)n+=t[r].x*t[i].y-t[i].x*t[r].y;return.5*n},isClockWise:function(t){return dp.area(t)<0},triangulateShape:function(t,e){const n=[],r=[],i=[];mp(t),fp(n,t);let s=t.length;e.forEach(mp);for(let a=0;a<e.length;a++)r.push(s),s+=e[a].length,fp(n,e[a]);const o=Nu.triangulate(n,r);for(let a=0;a<o.length;a+=3)i.push(o.slice(a,a+3));return i}};function mp(t){const e=t.length;e>2&&t[e-1].equals(t[0])&&t.pop()}function fp(t,e){for(let n=0;n<e.length;n++)t.push(e[n].x),t.push(e[n].y)}exports.ShapeUtils=dp;class gp extends ki{constructor(t,e){super(),this.type="ExtrudeGeometry",this.parameters={shapes:t,options:e},t=Array.isArray(t)?t:[t];const n=this,r=[],i=[];for(let o=0,a=t.length;o<a;o++){s(t[o])}function s(t){const s=[],o=void 0!==e.curveSegments?e.curveSegments:12,a=void 0!==e.steps?e.steps:1;let l=void 0!==e.depth?e.depth:100,c=void 0===e.bevelEnabled||e.bevelEnabled,h=void 0!==e.bevelThickness?e.bevelThickness:6,u=void 0!==e.bevelSize?e.bevelSize:h-2,p=void 0!==e.bevelOffset?e.bevelOffset:0,d=void 0!==e.bevelSegments?e.bevelSegments:3;const m=e.extrudePath,f=void 0!==e.UVGenerator?e.UVGenerator:xp;void 0!==e.amount&&(console.warn("THREE.ExtrudeBufferGeometry: amount has been renamed to depth."),l=e.amount);let g,x,v,y,_,b=!1;m&&(g=m.getSpacedPoints(a),b=!0,c=!1,x=m.computeFrenetFrames(a,!1),v=new Yn,y=new Yn,_=new Yn),c||(d=0,h=0,u=0,p=0);const w=t.extractPoints(o);let M=w.shape;const S=w.holes;if(!dp.isClockWise(M)){M=M.reverse();for(let t=0,e=S.length;t<e;t++){const e=S[t];dp.isClockWise(e)&&(S[t]=e.reverse())}}const T=dp.triangulateShape(M,S),E=M;for(let e=0,n=S.length;e<n;e++){const t=S[e];M=M.concat(t)}function A(t,e,n){return e||console.error("THREE.ExtrudeGeometry: vec does not exist"),e.clone().multiplyScalar(n).add(t)}const L=M.length,R=T.length;function C(t,e,n){let r,i,s;const o=t.x-e.x,a=t.y-e.y,l=n.x-t.x,c=n.y-t.y,h=o*o+a*a,u=o*c-a*l;if(Math.abs(u)>Number.EPSILON){const u=Math.sqrt(h),p=Math.sqrt(l*l+c*c),d=e.x-a/u,m=e.y+o/u,f=((n.x-c/p-d)*c-(n.y+l/p-m)*l)/(o*c-a*l),g=(r=d+o*f-t.x)*r+(i=m+a*f-t.y)*i;if(g<=2)return new On(r,i);s=Math.sqrt(g/2)}else{let t=!1;o>Number.EPSILON?l>Number.EPSILON&&(t=!0):o<-Number.EPSILON?l<-Number.EPSILON&&(t=!0):Math.sign(a)===Math.sign(c)&&(t=!0),t?(r=-a,i=o,s=Math.sqrt(h)):(r=o,i=a,s=Math.sqrt(h/2))}return new On(r/s,i/s)}const P=[];for(let e=0,n=E.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),P[e]=C(E[e],E[r],E[i]);const D=[];let I,B=P.concat();for(let e=0,n=S.length;e<n;e++){const t=S[e];I=[];for(let e=0,n=t.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),I[e]=C(t[e],t[r],t[i]);D.push(I),B=B.concat(I)}for(let e=0;e<d;e++){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,-n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);O(i.x,i.y,-n)}}}const N=u+p;for(let e=0;e<L;e++){const t=c?A(M[e],B[e],N):M[e];b?(y.copy(x.normals[0]).multiplyScalar(t.x),v.copy(x.binormals[0]).multiplyScalar(t.y),_.copy(g[0]).add(y).add(v),O(_.x,_.y,_.z)):O(t.x,t.y,0)}for(let e=1;e<=a;e++)for(let t=0;t<L;t++){const n=c?A(M[t],B[t],N):M[t];b?(y.copy(x.normals[e]).multiplyScalar(n.x),v.copy(x.binormals[e]).multiplyScalar(n.y),_.copy(g[e]).add(y).add(v),O(_.x,_.y,_.z)):O(n.x,n.y,l/a*e)}for(let e=d-1;e>=0;e--){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,l+n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);b?O(i.x,i.y+g[a-1].y,g[a-1].x+n):O(i.x,i.y,l+n)}}}function F(t,e){let n=t.length;for(;--n>=0;){const r=n;let i=n-1;i<0&&(i=t.length-1);for(let t=0,n=a+2*d;t<n;t++){const n=L*t,s=L*(t+1);G(e+r+n,e+i+n,e+i+s,e+r+s)}}}function O(t,e,n){s.push(t),s.push(e),s.push(n)}function z(t,e,i){H(t),H(e),H(i);const s=r.length/3,o=f.generateTopUV(n,r,s-3,s-2,s-1);U(o[0]),U(o[1]),U(o[2])}function G(t,e,i,s){H(t),H(e),H(s),H(e),H(i),H(s);const o=r.length/3,a=f.generateSideWallUV(n,r,o-6,o-3,o-2,o-1);U(a[0]),U(a[1]),U(a[3]),U(a[1]),U(a[2]),U(a[3])}function H(t){r.push(s[3*t+0]),r.push(s[3*t+1]),r.push(s[3*t+2])}function U(t){i.push(t.x),i.push(t.y)}!function(){const t=r.length/3;if(c){let t=0,e=L*t;for(let n=0;n<R;n++){const t=T[n];z(t[2]+e,t[1]+e,t[0]+e)}e=L*(t=a+2*d);for(let n=0;n<R;n++){const t=T[n];z(t[0]+e,t[1]+e,t[2]+e)}}else{for(let t=0;t<R;t++){const e=T[t];z(e[2],e[1],e[0])}for(let t=0;t<R;t++){const e=T[t];z(e[0]+L*a,e[1]+L*a,e[2]+L*a)}}n.addGroup(t,r.length/3-t,0)}(),function(){const t=r.length/3;let e=0;F(E,e),e+=E.length;for(let n=0,r=S.length;n<r;n++){const t=S[n];F(t,e),e+=t.length}n.addGroup(t,r.length/3-t,1)}()}this.setAttribute("position",new Ci(r,3)),this.setAttribute("uv",new Ci(i,2)),this.computeVertexNormals()}toJSON(){const t=ki.prototype.toJSON.call(this);return vp(this.parameters.shapes,this.parameters.options,t)}}exports.ExtrudeGeometry=exports.ExtrudeBufferGeometry=gp;const xp={generateTopUV:function(t,e,n,r,i){const s=e[3*n],o=e[3*n+1],a=e[3*r],l=e[3*r+1],c=e[3*i],h=e[3*i+1];return[new On(s,o),new On(a,l),new On(c,h)]},generateSideWallUV:function(t,e,n,r,i,s){const o=e[3*n],a=e[3*n+1],l=e[3*n+2],c=e[3*r],h=e[3*r+1],u=e[3*r+2],p=e[3*i],d=e[3*i+1],m=e[3*i+2],f=e[3*s],g=e[3*s+1],x=e[3*s+2];return Math.abs(a-h)<.01?[new On(o,1-l),new On(c,1-u),new On(p,1-m),new On(f,1-x)]:[new On(a,1-l),new On(h,1-u),new On(d,1-m),new On(g,1-x)]}};function vp(t,e,n){if(n.shapes=[],Array.isArray(t))for(let r=0,i=t.length;r<i;r++){const e=t[r];n.shapes.push(e.uuid)}else n.shapes.push(t.uuid);return void 0!==e.extrudePath&&(n.options.extrudePath=e.extrudePath.toJSON()),n}class yp extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2;super([-1,n,0,1,n,0,-1,-n,0,1,-n,0,0,-1,n,0,1,n,0,-1,-n,0,1,-n,n,0,-1,n,0,1,-n,0,-1,-n,0,1],[0,11,5,0,5,1,0,1,7,0,7,10,0,10,11,1,5,9,5,11,4,11,10,2,10,7,6,7,1,8,3,9,4,3,4,2,3,2,6,3,6,8,3,8,9,4,9,5,2,4,11,6,2,10,8,6,7,9,8,1],t,e),this.type="IcosahedronGeometry",this.parameters={radius:t,detail:e}}}exports.IcosahedronGeometry=exports.IcosahedronBufferGeometry=yp;class _p extends ki{constructor(t,e=12,n=0,r=2*Math.PI){super(),this.type="LatheGeometry",this.parameters={points:t,segments:e,phiStart:n,phiLength:r},e=Math.floor(e),r=Fn.clamp(r,0,2*Math.PI);const i=[],s=[],o=[],a=1/e,l=new Yn,c=new On;for(let h=0;h<=e;h++){const i=n+h*a*r,u=Math.sin(i),p=Math.cos(i);for(let n=0;n<=t.length-1;n++)l.x=t[n].x*u,l.y=t[n].y,l.z=t[n].x*p,s.push(l.x,l.y,l.z),c.x=h/e,c.y=n/(t.length-1),o.push(c.x,c.y)}for(let h=0;h<e;h++)for(let e=0;e<t.length-1;e++){const n=e+h*t.length,r=n,s=n+t.length,o=n+t.length+1,a=n+1;i.push(r,s,a),i.push(s,o,a)}if(this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2)),this.computeVertexNormals(),r===2*Math.PI){const n=this.attributes.normal.array,r=new Yn,i=new Yn,s=new Yn,o=e*t.length*3;for(let e=0,a=0;e<t.length;e++,a+=3)r.x=n[a+0],r.y=n[a+1],r.z=n[a+2],i.x=n[o+a+0],i.y=n[o+a+1],i.z=n[o+a+2],s.addVectors(r,i).normalize(),n[a+0]=n[o+a+0]=s.x,n[a+1]=n[o+a+1]=s.y,n[a+2]=n[o+a+2]=s.z}}}exports.LatheGeometry=exports.LatheBufferGeometry=_p;class bp extends Lu{constructor(t=1,e=0){super([1,0,0,-1,0,0,0,1,0,0,-1,0,0,0,1,0,0,-1],[0,2,4,0,4,3,0,3,5,0,5,2,1,2,5,1,5,3,1,3,4,1,4,2],t,e),this.type="OctahedronGeometry",this.parameters={radius:t,detail:e}}}function wp(t,e,n){ki.call(this),this.type="ParametricGeometry",this.parameters={func:t,slices:e,stacks:n};const r=[],i=[],s=[],o=[],a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=new Yn;t.length<3&&console.error("THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.");const p=e+1;for(let d=0;d<=n;d++){const r=d/n;for(let n=0;n<=e;n++){const p=n/e;t(p,r,l),i.push(l.x,l.y,l.z),p-1e-5>=0?(t(p-1e-5,r,c),h.subVectors(l,c)):(t(p+1e-5,r,c),h.subVectors(c,l)),r-1e-5>=0?(t(p,r-1e-5,c),u.subVectors(l,c)):(t(p,r+1e-5,c),u.subVectors(c,l)),a.crossVectors(h,u).normalize(),s.push(a.x,a.y,a.z),o.push(p,r)}}for(let d=0;d<n;d++)for(let t=0;t<e;t++){const e=d*p+t,n=d*p+t+1,i=(d+1)*p+t+1,s=(d+1)*p+t;r.push(e,n,s),r.push(n,i,s)}this.setIndex(r),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2))}exports.OctahedronGeometry=exports.OctahedronBufferGeometry=bp,wp.prototype=Object.create(ki.prototype),wp.prototype.constructor=wp;class Mp extends ki{constructor(t=.5,e=1,n=8,r=1,i=0,s=2*Math.PI){super(),this.type="RingGeometry",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:n,phiSegments:r,thetaStart:i,thetaLength:s},n=Math.max(3,n);const o=[],a=[],l=[],c=[];let h=t;const u=(e-t)/(r=Math.max(1,r)),p=new Yn,d=new On;for(let m=0;m<=r;m++){for(let t=0;t<=n;t++){const r=i+t/n*s;p.x=h*Math.cos(r),p.y=h*Math.sin(r),a.push(p.x,p.y,p.z),l.push(0,0,1),d.x=(p.x/e+1)/2,d.y=(p.y/e+1)/2,c.push(d.x,d.y)}h+=u}for(let m=0;m<r;m++){const t=m*(n+1);for(let e=0;e<n;e++){const r=e+t,i=r,s=r+n+1,a=r+n+2,l=r+1;o.push(i,s,l),o.push(s,a,l)}}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.RingGeometry=exports.RingBufferGeometry=Mp;class Sp extends ki{constructor(t,e=12){super(),this.type="ShapeGeometry",this.parameters={shapes:t,curveSegments:e};const n=[],r=[],i=[],s=[];let o=0,a=0;if(!1===Array.isArray(t))l(t);else for(let c=0;c<t.length;c++)l(t[c]),this.addGroup(o,a,c),o+=a,a=0;function l(t){const o=r.length/3,l=t.extractPoints(e);let c=l.shape;const h=l.holes;!1===dp.isClockWise(c)&&(c=c.reverse());for(let e=0,n=h.length;e<n;e++){const t=h[e];!0===dp.isClockWise(t)&&(h[e]=t.reverse())}const u=dp.triangulateShape(c,h);for(let e=0,n=h.length;e<n;e++){const t=h[e];c=c.concat(t)}for(let e=0,n=c.length;e<n;e++){const t=c[e];r.push(t.x,t.y,0),i.push(0,0,1),s.push(t.x,t.y)}for(let e=0,r=u.length;e<r;e++){const t=u[e],r=t[0]+o,i=t[1]+o,s=t[2]+o;n.push(r,i,s),a+=3}}this.setIndex(n),this.setAttribute("position",new Ci(r,3)),this.setAttribute("normal",new Ci(i,3)),this.setAttribute("uv",new Ci(s,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return Tp(this.parameters.shapes,t)}}function Tp(t,e){if(e.shapes=[],Array.isArray(t))for(let n=0,r=t.length;n<r;n++){const r=t[n];e.shapes.push(r.uuid)}else e.shapes.push(t.uuid);return e}exports.ShapeGeometry=exports.ShapeBufferGeometry=Sp;class Ep extends ki{constructor(t=1,e=8,n=6,r=0,i=2*Math.PI,s=0,o=Math.PI){super(),this.type="SphereGeometry",this.parameters={radius:t,widthSegments:e,heightSegments:n,phiStart:r,phiLength:i,thetaStart:s,thetaLength:o},e=Math.max(3,Math.floor(e)),n=Math.max(2,Math.floor(n));const a=Math.min(s+o,Math.PI);let l=0;const c=[],h=new Yn,u=new Yn,p=[],d=[],m=[],f=[];for(let g=0;g<=n;g++){const p=[],x=g/n;let v=0;0==g&&0==s?v=.5/e:g==n&&a==Math.PI&&(v=-.5/e);for(let n=0;n<=e;n++){const a=n/e;h.x=-t*Math.cos(r+a*i)*Math.sin(s+x*o),h.y=t*Math.cos(s+x*o),h.z=t*Math.sin(r+a*i)*Math.sin(s+x*o),d.push(h.x,h.y,h.z),u.copy(h).normalize(),m.push(u.x,u.y,u.z),f.push(a+v,1-x),p.push(l++)}c.push(p)}for(let g=0;g<n;g++)for(let t=0;t<e;t++){const e=c[g][t+1],r=c[g][t],i=c[g+1][t],o=c[g+1][t+1];(0!==g||s>0)&&p.push(e,r,o),(g!==n-1||a<Math.PI)&&p.push(r,i,o)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.SphereGeometry=exports.SphereBufferGeometry=Ep;class Ap extends Lu{constructor(t=1,e=0){super([1,1,1,-1,-1,1,-1,1,-1,1,-1,-1],[2,1,0,0,3,2,1,3,0,2,3,1],t,e),this.type="TetrahedronGeometry",this.parameters={radius:t,detail:e}}}exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=Ap;class Lp extends gp{constructor(t,e={}){const n=e.font;if(!n||!n.isFont)return console.error("THREE.TextGeometry: font parameter is not an instance of THREE.Font."),new ki;const r=n.generateShapes(t,e.size);e.depth=void 0!==e.height?e.height:50,void 0===e.bevelThickness&&(e.bevelThickness=10),void 0===e.bevelSize&&(e.bevelSize=8),void 0===e.bevelEnabled&&(e.bevelEnabled=!1),super(r,e),this.type="TextGeometry"}}exports.TextGeometry=exports.TextBufferGeometry=Lp;class Rp extends ki{constructor(t=1,e=.4,n=8,r=6,i=2*Math.PI){super(),this.type="TorusGeometry",this.parameters={radius:t,tube:e,radialSegments:n,tubularSegments:r,arc:i},n=Math.floor(n),r=Math.floor(r);const s=[],o=[],a=[],l=[],c=new Yn,h=new Yn,u=new Yn;for(let p=0;p<=n;p++)for(let s=0;s<=r;s++){const d=s/r*i,m=p/n*Math.PI*2;h.x=(t+e*Math.cos(m))*Math.cos(d),h.y=(t+e*Math.cos(m))*Math.sin(d),h.z=e*Math.sin(m),o.push(h.x,h.y,h.z),c.x=t*Math.cos(d),c.y=t*Math.sin(d),u.subVectors(h,c).normalize(),a.push(u.x,u.y,u.z),l.push(s/r),l.push(p/n)}for(let p=1;p<=n;p++)for(let t=1;t<=r;t++){const e=(r+1)*p+t-1,n=(r+1)*(p-1)+t-1,i=(r+1)*(p-1)+t,o=(r+1)*p+t;s.push(e,n,o),s.push(n,i,o)}this.setIndex(s),this.setAttribute("position",new Ci(o,3)),this.setAttribute("normal",new Ci(a,3)),this.setAttribute("uv",new Ci(l,2))}}exports.TorusGeometry=exports.TorusBufferGeometry=Rp;class Cp extends ki{constructor(t=1,e=.4,n=64,r=8,i=2,s=3){super(),this.type="TorusKnotGeometry",this.parameters={radius:t,tube:e,tubularSegments:n,radialSegments:r,p:i,q:s},n=Math.floor(n),r=Math.floor(r);const o=[],a=[],l=[],c=[],h=new Yn,u=new Yn,p=new Yn,d=new Yn,m=new Yn,f=new Yn,g=new Yn;for(let v=0;v<=n;++v){const o=v/n*i*Math.PI*2;x(o,i,s,t,p),x(o+.01,i,s,t,d),f.subVectors(d,p),g.addVectors(d,p),m.crossVectors(f,g),g.crossVectors(m,f),m.normalize(),g.normalize();for(let t=0;t<=r;++t){const i=t/r*Math.PI*2,s=-e*Math.cos(i),o=e*Math.sin(i);h.x=p.x+(s*g.x+o*m.x),h.y=p.y+(s*g.y+o*m.y),h.z=p.z+(s*g.z+o*m.z),a.push(h.x,h.y,h.z),u.subVectors(h,p).normalize(),l.push(u.x,u.y,u.z),c.push(v/n),c.push(t/r)}}for(let v=1;v<=n;v++)for(let t=1;t<=r;t++){const e=(r+1)*(v-1)+(t-1),n=(r+1)*v+(t-1),i=(r+1)*v+t,s=(r+1)*(v-1)+t;o.push(e,n,s),o.push(n,i,s)}function x(t,e,n,r,i){const s=Math.cos(t),o=Math.sin(t),a=n/e*t,l=Math.cos(a);i.x=r*(2+l)*.5*s,i.y=r*(2+l)*o*.5,i.z=r*Math.sin(a)*.5}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=Cp;class Pp extends ki{constructor(t,e=64,n=1,r=8,i=!1){super(),this.type="TubeGeometry",this.parameters={path:t,tubularSegments:e,radius:n,radialSegments:r,closed:i};const s=t.computeFrenetFrames(e,i);this.tangents=s.tangents,this.normals=s.normals,this.binormals=s.binormals;const o=new Yn,a=new Yn,l=new On;let c=new Yn;const h=[],u=[],p=[],d=[];function m(i){c=t.getPointAt(i/e,c);const l=s.normals[i],p=s.binormals[i];for(let t=0;t<=r;t++){const e=t/r*Math.PI*2,i=Math.sin(e),s=-Math.cos(e);a.x=s*l.x+i*p.x,a.y=s*l.y+i*p.y,a.z=s*l.z+i*p.z,a.normalize(),u.push(a.x,a.y,a.z),o.x=c.x+n*a.x,o.y=c.y+n*a.y,o.z=c.z+n*a.z,h.push(o.x,o.y,o.z)}}!function(){for(let t=0;t<e;t++)m(t);m(!1===i?e:0),function(){for(let t=0;t<=e;t++)for(let n=0;n<=r;n++)l.x=t/e,l.y=n/r,p.push(l.x,l.y)}(),function(){for(let t=1;t<=e;t++)for(let e=1;e<=r;e++){const n=(r+1)*(t-1)+(e-1),i=(r+1)*t+(e-1),s=(r+1)*t+e,o=(r+1)*(t-1)+e;d.push(n,i,o),d.push(i,s,o)}}()}(),this.setIndex(d),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return t.path=this.parameters.path.toJSON(),t}}exports.TubeGeometry=exports.TubeBufferGeometry=Pp;class Dp extends ki{constructor(t){if(super(),this.type="WireframeGeometry",!0===t.isGeometry)return void console.error("THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const e=[],n=[0,0],r={},i=new Yn;if(null!==t.index){const s=t.attributes.position,o=t.index;let a=t.groups;0===a.length&&(a=[{start:0,count:o.count,materialIndex:0}]);for(let t=0,e=a.length;t<e;++t){const e=a[t],i=e.start;for(let t=i,s=i+e.count;t<s;t+=3)for(let e=0;e<3;e++){const i=o.getX(t+e),s=o.getX(t+(e+1)%3);n[0]=Math.min(i,s),n[1]=Math.max(i,s);const a=n[0]+","+n[1];void 0===r[a]&&(r[a]={index1:n[0],index2:n[1]})}}for(const t in r){const n=r[t];i.fromBufferAttribute(s,n.index1),e.push(i.x,i.y,i.z),i.fromBufferAttribute(s,n.index2),e.push(i.x,i.y,i.z)}}else{const n=t.attributes.position;for(let t=0,r=n.count/3;t<r;t++)for(let s=0;s<3;s++){const r=3*t+s;i.fromBufferAttribute(n,r),e.push(i.x,i.y,i.z);const o=3*t+(s+1)%3;i.fromBufferAttribute(n,o),e.push(i.x,i.y,i.z)}}this.setAttribute("position",new Ci(e,3))}}exports.WireframeGeometry=Dp;var Ip=Object.freeze({__proto__:null,BoxGeometry:cs,BoxBufferGeometry:cs,CircleGeometry:Tu,CircleBufferGeometry:Tu,ConeGeometry:Au,ConeBufferGeometry:Au,CylinderGeometry:Eu,CylinderBufferGeometry:Eu,DodecahedronGeometry:Ru,DodecahedronBufferGeometry:Ru,EdgesGeometry:Bu,ExtrudeGeometry:gp,ExtrudeBufferGeometry:gp,IcosahedronGeometry:yp,IcosahedronBufferGeometry:yp,LatheGeometry:_p,LatheBufferGeometry:_p,OctahedronGeometry:bp,OctahedronBufferGeometry:bp,ParametricGeometry:wp,ParametricBufferGeometry:wp,PlaneGeometry:Rs,PlaneBufferGeometry:Rs,PolyhedronGeometry:Lu,PolyhedronBufferGeometry:Lu,RingGeometry:Mp,RingBufferGeometry:Mp,ShapeGeometry:Sp,ShapeBufferGeometry:Sp,SphereGeometry:Ep,SphereBufferGeometry:Ep,TetrahedronGeometry:Ap,TetrahedronBufferGeometry:Ap,TextGeometry:Lp,TextBufferGeometry:Lp,TorusGeometry:Rp,TorusBufferGeometry:Rp,TorusKnotGeometry:Cp,TorusKnotBufferGeometry:Cp,TubeGeometry:Pp,TubeBufferGeometry:Pp,WireframeGeometry:Dp});class Bp extends hi{constructor(t){super(),this.type="ShadowMaterial",this.color=new xi(0),this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this}}exports.ShadowMaterial=Bp,Bp.prototype.isShadowMaterial=!0;class Np extends fs{constructor(t){super(t),this.type="RawShaderMaterial"}}function Fp(t){hi.call(this),this.defines={STANDARD:""},this.type="MeshStandardMaterial",this.color=new xi(16777215),this.roughness=1,this.metalness=0,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapIntensity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.vertexTangents=!1,this.setValues(t)}function Op(t){Fp.call(this),this.defines={STANDARD:"",PHYSICAL:""},this.type="MeshPhysicalMaterial",this.clearcoat=0,this.clearcoatMap=null,this.clearcoatRoughness=0,this.clearcoatRoughnessMap=null,this.clearcoatNormalScale=new On(1,1),this.clearcoatNormalMap=null,this.reflectivity=.5,Object.defineProperty(this,"ior",{get:function(){return(1+.4*this.reflectivity)/(1-.4*this.reflectivity)},set:function(t){this.reflectivity=Fn.clamp(2.5*(t-1)/(t+1),0,1)}}),this.sheen=null,this.transmission=0,this.transmissionMap=null,this.setValues(t)}exports.RawShaderMaterial=Np,Np.prototype.isRawShaderMaterial=!0,Fp.prototype=Object.create(hi.prototype),Fp.prototype.constructor=Fp,Fp.prototype.isMeshStandardMaterial=!0,Fp.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.defines={STANDARD:""},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapIntensity=t.envMapIntensity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this.vertexTangents=t.vertexTangents,this},Op.prototype=Object.create(Fp.prototype),Op.prototype.constructor=Op,Op.prototype.isMeshPhysicalMaterial=!0,Op.prototype.copy=function(t){return Fp.prototype.copy.call(this,t),this.defines={STANDARD:"",PHYSICAL:""},this.clearcoat=t.clearcoat,this.clearcoatMap=t.clearcoatMap,this.clearcoatRoughness=t.clearcoatRoughness,this.clearcoatRoughnessMap=t.clearcoatRoughnessMap,this.clearcoatNormalMap=t.clearcoatNormalMap,this.clearcoatNormalScale.copy(t.clearcoatNormalScale),this.reflectivity=t.reflectivity,t.sheen?this.sheen=(this.sheen||new xi).copy(t.sheen):this.sheen=null,this.transmission=t.transmission,this.transmissionMap=t.transmissionMap,this};class zp extends hi{constructor(t){super(),this.type="MeshPhongMaterial",this.color=new xi(16777215),this.specular=new xi(1118481),this.shininess=30,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.specular.copy(t.specular),this.shininess=t.shininess,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshPhongMaterial=zp,zp.prototype.isMeshPhongMaterial=!0;class Gp extends hi{constructor(t){super(),this.defines={TOON:""},this.type="MeshToonMaterial",this.color=new xi(16777215),this.map=null,this.gradientMap=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.gradientMap=t.gradientMap,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshToonMaterial=Gp,Gp.prototype.isMeshToonMaterial=!0;class Hp extends hi{constructor(t){super(),this.type="MeshNormalMaterial",this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshNormalMaterial=Hp,Hp.prototype.isMeshNormalMaterial=!0;class Up extends hi{constructor(t){super(),this.type="MeshLambertMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshLambertMaterial=Up,Up.prototype.isMeshLambertMaterial=!0;class kp extends hi{constructor(t){super(),this.defines={MATCAP:""},this.type="MeshMatcapMaterial",this.color=new xi(16777215),this.matcap=null,this.map=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.defines={MATCAP:""},this.color.copy(t.color),this.matcap=t.matcap,this.map=t.map,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshMatcapMaterial=kp,kp.prototype.isMeshMatcapMaterial=!0;class Vp extends ru{constructor(t){super(),this.type="LineDashedMaterial",this.scale=1,this.dashSize=3,this.gapSize=1,this.setValues(t)}copy(t){return super.copy(t),this.scale=t.scale,this.dashSize=t.dashSize,this.gapSize=t.gapSize,this}}exports.LineDashedMaterial=Vp,Vp.prototype.isLineDashedMaterial=!0;var Wp=Object.freeze({__proto__:null,ShadowMaterial:Bp,SpriteMaterial:Mh,RawShaderMaterial:Np,ShaderMaterial:fs,PointsMaterial:mu,MeshPhysicalMaterial:Op,MeshStandardMaterial:Fp,MeshPhongMaterial:zp,MeshToonMaterial:Gp,MeshNormalMaterial:Hp,MeshLambertMaterial:Up,MeshDepthMaterial:eh,MeshDistanceMaterial:nh,MeshBasicMaterial:vi,MeshMatcapMaterial:kp,LineDashedMaterial:Vp,LineBasicMaterial:ru,Material:hi});const jp={arraySlice:function(t,e,n){return jp.isTypedArray(t)?new t.constructor(t.subarray(e,void 0!==n?n:t.length)):t.slice(e,n)},convertArray:function(t,e,n){return!t||!n&&t.constructor===e?t:"number"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)},isTypedArray:function(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)},getKeyframeOrder:function(t){const e=t.length,n=new Array(e);for(let r=0;r!==e;++r)n[r]=r;return n.sort(function(e,n){return t[e]-t[n]}),n},sortedArray:function(t,e,n){const r=t.length,i=new t.constructor(r);for(let s=0,o=0;o!==r;++s){const r=n[s]*e;for(let n=0;n!==e;++n)i[o++]=t[r+n]}return i},flattenJSON:function(t,e,n,r){let i=1,s=t[0];for(;void 0!==s&&void 0===s[r];)s=t[i++];if(void 0===s)return;let o=s[r];if(void 0!==o)if(Array.isArray(o))do{void 0!==(o=s[r])&&(e.push(s.time),n.push.apply(n,o)),s=t[i++]}while(void 0!==s);else if(void 0!==o.toArray)do{void 0!==(o=s[r])&&(e.push(s.time),o.toArray(n,n.length)),s=t[i++]}while(void 0!==s);else do{void 0!==(o=s[r])&&(e.push(s.time),n.push(o)),s=t[i++]}while(void 0!==s)},subclip:function(t,e,n,r,i=30){const s=t.clone();s.name=e;const o=[];for(let l=0;l<s.tracks.length;++l){const t=s.tracks[l],e=t.getValueSize(),a=[],c=[];for(let s=0;s<t.times.length;++s){const o=t.times[s]*i;if(!(o<n||o>=r)){a.push(t.times[s]);for(let n=0;n<e;++n)c.push(t.values[s*e+n])}}0!==a.length&&(t.times=jp.convertArray(a,t.times.constructor),t.values=jp.convertArray(c,t.values.constructor),o.push(t))}s.tracks=o;let a=1/0;for(let l=0;l<s.tracks.length;++l)a>s.tracks[l].times[0]&&(a=s.tracks[l].times[0]);for(let l=0;l<s.tracks.length;++l)s.tracks[l].shift(-1*a);return s.resetDuration(),s},makeClipAdditive:function(t,e=0,n=t,r=30){r<=0&&(r=30);const i=n.tracks.length,s=e/r;for(let o=0;o<i;++o){const e=n.tracks[o],r=e.ValueTypeName;if("bool"===r||"string"===r)continue;const i=t.tracks.find(function(t){return t.name===e.name&&t.ValueTypeName===r});if(void 0===i)continue;let a=0;const l=e.getValueSize();e.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(a=l/3);let c=0;const h=i.getValueSize();i.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(c=h/3);const u=e.times.length-1;let p;if(s<=e.times[0]){const t=a,n=l-a;p=jp.arraySlice(e.values,t,n)}else if(s>=e.times[u]){const t=u*l+a,n=t+l-a;p=jp.arraySlice(e.values,t,n)}else{const t=e.createInterpolant(),n=a,r=l-a;t.evaluate(s),p=jp.arraySlice(t.resultBuffer,n,r)}if("quaternion"===r){(new Xn).fromArray(p).normalize().conjugate().toArray(p)}const d=i.times.length;for(let t=0;t<d;++t){const e=t*h+c;if("quaternion"===r)Xn.multiplyQuaternionsFlat(i.values,e,p,0,i.values,e);else{const t=h-2*c;for(let n=0;n<t;++n)i.values[e+n]-=p[n]}}}return t.blendMode=Ve,t}};function qp(t,e,n,r){this.parameterPositions=t,this._cachedIndex=0,this.resultBuffer=void 0!==r?r:new e.constructor(n),this.sampleValues=e,this.valueSize=n}function Xp(t,e,n,r){qp.call(this,t,e,n,r),this._weightPrev=-0,this._offsetPrev=-0,this._weightNext=-0,this._offsetNext=-0}function Yp(t,e,n,r){qp.call(this,t,e,n,r)}function Zp(t,e,n,r){qp.call(this,t,e,n,r)}exports.AnimationUtils=jp,Object.assign(qp.prototype,{evaluate:function(t){const e=this.parameterPositions;let n=this._cachedIndex,r=e[n],i=e[n-1];t:{e:{let s;n:{r:if(!(t<r)){for(let s=n+2;;){if(void 0===r){if(t<i)break r;return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,t,i)}if(n===s)break;if(i=r,t<(r=e[++n]))break e}s=e.length;break n}if(t>=i)break t;{const o=e[1];t<o&&(n=2,i=o);for(let s=n-2;;){if(void 0===i)return this._cachedIndex=0,this.beforeStart_(0,t,r);if(n===s)break;if(r=i,t>=(i=e[--n-1]))break e}s=n,n=0}}for(;n<s;){const r=n+s>>>1;t<e[r]?s=r:n=r+1}if(r=e[n],void 0===(i=e[n-1]))return this._cachedIndex=0,this.beforeStart_(0,t,r);if(void 0===r)return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,i,t)}this._cachedIndex=n,this.intervalChanged_(n,i,r)}return this.interpolate_(n,i,t,r)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||this.DefaultSettings_},copySampleValue_:function(t){const e=this.resultBuffer,n=this.sampleValues,r=this.valueSize,i=t*r;for(let s=0;s!==r;++s)e[s]=n[i+s];return e},interpolate_:function(){throw new Error("call to abstract method")},intervalChanged_:function(){}}),Object.assign(qp.prototype,{beforeStart_:qp.prototype.copySampleValue_,afterEnd_:qp.prototype.copySampleValue_}),Xp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Xp,DefaultSettings_:{endingStart:Ge,endingEnd:Ge},intervalChanged_:function(t,e,n){const r=this.parameterPositions;let i=t-2,s=t+1,o=r[i],a=r[s];if(void 0===o)switch(this.getSettings_().endingStart){case He:i=t,o=2*e-n;break;case Ue:o=e+r[i=r.length-2]-r[i+1];break;default:i=t,o=n}if(void 0===a)switch(this.getSettings_().endingEnd){case He:s=t,a=2*n-e;break;case Ue:s=1,a=n+r[1]-r[0];break;default:s=t-1,a=e}const l=.5*(n-e),c=this.valueSize;this._weightPrev=l/(e-o),this._weightNext=l/(a-n),this._offsetPrev=i*c,this._offsetNext=s*c},interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=this._offsetPrev,h=this._offsetNext,u=this._weightPrev,p=this._weightNext,d=(n-e)/(r-e),m=d*d,f=m*d,g=-u*f+2*u*m-u*d,x=(1+u)*f+(-1.5-2*u)*m+(-.5+u)*d+1,v=(-1-p)*f+(1.5+p)*m+.5*d,y=p*f-p*m;for(let _=0;_!==o;++_)i[_]=g*s[c+_]+x*s[l+_]+v*s[a+_]+y*s[h+_];return i}}),Yp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Yp,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=(n-e)/(r-e),h=1-c;for(let u=0;u!==o;++u)i[u]=s[l+u]*h+s[a+u]*c;return i}}),Zp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Zp,interpolate_:function(t){return this.copySampleValue_(t-1)}});class Jp{constructor(t,e,n,r){if(void 0===t)throw new Error("THREE.KeyframeTrack: track name is undefined");if(void 0===e||0===e.length)throw new Error("THREE.KeyframeTrack: no keyframes in track named "+t);this.name=t,this.times=jp.convertArray(e,this.TimeBufferType),this.values=jp.convertArray(n,this.ValueBufferType),this.setInterpolation(r||this.DefaultInterpolation)}static toJSON(t){const e=t.constructor;let n;if(e.toJSON!==this.toJSON)n=e.toJSON(t);else{n={name:t.name,times:jp.convertArray(t.times,Array),values:jp.convertArray(t.values,Array)};const e=t.getInterpolation();e!==t.DefaultInterpolation&&(n.interpolation=e)}return n.type=t.ValueTypeName,n}InterpolantFactoryMethodDiscrete(t){return new Zp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodLinear(t){return new Yp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodSmooth(t){return new Xp(this.times,this.values,this.getValueSize(),t)}setInterpolation(t){let e;switch(t){case Fe:e=this.InterpolantFactoryMethodDiscrete;break;case Oe:e=this.InterpolantFactoryMethodLinear;break;case ze:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){const e="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(e);this.setInterpolation(this.DefaultInterpolation)}return console.warn("THREE.KeyframeTrack:",e),this}return this.createInterpolant=e,this}getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return Fe;case this.InterpolantFactoryMethodLinear:return Oe;case this.InterpolantFactoryMethodSmooth:return ze}}getValueSize(){return this.values.length/this.times.length}shift(t){if(0!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]+=t}return this}scale(t){if(1!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]*=t}return this}trim(t,e){const n=this.times,r=n.length;let i=0,s=r-1;for(;i!==r&&n[i]<t;)++i;for(;-1!==s&&n[s]>e;)--s;if(++s,0!==i||s!==r){i>=s&&(i=(s=Math.max(s,1))-1);const t=this.getValueSize();this.times=jp.arraySlice(n,i,s),this.values=jp.arraySlice(this.values,i*t,s*t)}return this}validate(){let t=!0;const e=this.getValueSize();e-Math.floor(e)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),t=!1);const n=this.times,r=this.values,i=n.length;0===i&&(console.error("THREE.KeyframeTrack: Track is empty.",this),t=!1);let s=null;for(let o=0;o!==i;o++){const e=n[o];if("number"==typeof e&&isNaN(e)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,o,e),t=!1;break}if(null!==s&&s>e){console.error("THREE.KeyframeTrack: Out of order keys.",this,o,e,s),t=!1;break}s=e}if(void 0!==r&&jp.isTypedArray(r))for(let o=0,a=r.length;o!==a;++o){const e=r[o];if(isNaN(e)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,o,e),t=!1;break}}return t}optimize(){const t=jp.arraySlice(this.times),e=jp.arraySlice(this.values),n=this.getValueSize(),r=this.getInterpolation()===ze,i=t.length-1;let s=1;for(let o=1;o<i;++o){let i=!1;const a=t[o];if(a!==t[o+1]&&(1!==o||a!==t[0]))if(r)i=!0;else{const t=o*n,r=t-n,s=t+n;for(let o=0;o!==n;++o){const n=e[t+o];if(n!==e[r+o]||n!==e[s+o]){i=!0;break}}}if(i){if(o!==s){t[s]=t[o];const r=o*n,i=s*n;for(let t=0;t!==n;++t)e[i+t]=e[r+t]}++s}}if(i>0){t[s]=t[i];for(let t=i*n,r=s*n,o=0;o!==n;++o)e[r+o]=e[t+o];++s}return s!==t.length?(this.times=jp.arraySlice(t,0,s),this.values=jp.arraySlice(e,0,s*n)):(this.times=t,this.values=e),this}clone(){const t=jp.arraySlice(this.times,0),e=jp.arraySlice(this.values,0),n=new(0,this.constructor)(this.name,t,e);return n.createInterpolant=this.createInterpolant,n}}exports.KeyframeTrack=Jp,Jp.prototype.TimeBufferType=Float32Array,Jp.prototype.ValueBufferType=Float32Array,Jp.prototype.DefaultInterpolation=Oe;class Qp extends Jp{}exports.BooleanKeyframeTrack=Qp,Qp.prototype.ValueTypeName="bool",Qp.prototype.ValueBufferType=Array,Qp.prototype.DefaultInterpolation=Fe,Qp.prototype.InterpolantFactoryMethodLinear=void 0,Qp.prototype.InterpolantFactoryMethodSmooth=void 0;class Kp extends Jp{}exports.ColorKeyframeTrack=Kp,Kp.prototype.ValueTypeName="color";class $p extends Jp{}function td(t,e,n,r){qp.call(this,t,e,n,r)}exports.NumberKeyframeTrack=$p,$p.prototype.ValueTypeName="number",td.prototype=Object.assign(Object.create(qp.prototype),{constructor:td,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=(n-e)/(r-e);let l=t*o;for(let c=l+o;l!==c;l+=4)Xn.slerpFlat(i,0,s,l-o,s,l,a);return i}});class ed extends Jp{InterpolantFactoryMethodLinear(t){return new td(this.times,this.values,this.getValueSize(),t)}}exports.QuaternionKeyframeTrack=ed,ed.prototype.ValueTypeName="quaternion",ed.prototype.DefaultInterpolation=Oe,ed.prototype.InterpolantFactoryMethodSmooth=void 0;class nd extends Jp{}exports.StringKeyframeTrack=nd,nd.prototype.ValueTypeName="string",nd.prototype.ValueBufferType=Array,nd.prototype.DefaultInterpolation=Fe,nd.prototype.InterpolantFactoryMethodLinear=void 0,nd.prototype.InterpolantFactoryMethodSmooth=void 0;class rd extends Jp{}exports.VectorKeyframeTrack=rd,rd.prototype.ValueTypeName="vector";class id{constructor(t,e=-1,n,r=ke){this.name=t,this.tracks=n,this.duration=e,this.blendMode=r,this.uuid=Fn.generateUUID(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],n=t.tracks,r=1/(t.fps||1);for(let s=0,o=n.length;s!==o;++s)e.push(od(n[s]).scale(r));const i=new this(t.name,t.duration,e,t.blendMode);return i.uuid=t.uuid,i}static toJSON(t){const e=[],n=t.tracks,r={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let i=0,s=n.length;i!==s;++i)e.push(Jp.toJSON(n[i]));return r}static CreateFromMorphTargetSequence(t,e,n,r){const i=e.length,s=[];for(let o=0;o<i;o++){let t=[],a=[];t.push((o+i-1)%i,o,(o+1)%i),a.push(0,1,0);const l=jp.getKeyframeOrder(t);t=jp.sortedArray(t,1,l),a=jp.sortedArray(a,1,l),r||0!==t[0]||(t.push(i),a.push(a[0])),s.push(new $p(".morphTargetInfluences["+e[o].name+"]",t,a).scale(1/n))}return new this(t,-1,s)}static findByName(t,e){let n=t;if(!Array.isArray(t)){const e=t;n=e.geometry&&e.geometry.animations||e.animations}for(let r=0;r<n.length;r++)if(n[r].name===e)return n[r];return null}static CreateClipsFromMorphTargetSequences(t,e,n){const r={},i=/^([\w-]*?)([\d]+)$/;for(let o=0,a=t.length;o<a;o++){const e=t[o],n=e.name.match(i);if(n&&n.length>1){const t=n[1];let i=r[t];i||(r[t]=i=[]),i.push(e)}}const s=[];for(const o in r)s.push(this.CreateFromMorphTargetSequence(o,r[o],e,n));return s}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const n=function(t,e,n,r,i){if(0!==n.length){const s=[],o=[];jp.flattenJSON(n,s,o,r),0!==s.length&&i.push(new t(e,s,o))}},r=[],i=t.name||"default",s=t.fps||30,o=t.blendMode;let a=t.length||-1;const l=t.hierarchy||[];for(let c=0;c<l.length;c++){const t=l[c].keys;if(t&&0!==t.length)if(t[0].morphTargets){const e={};let n;for(n=0;n<t.length;n++)if(t[n].morphTargets)for(let r=0;r<t[n].morphTargets.length;r++)e[t[n].morphTargets[r]]=-1;for(const i in e){const e=[],s=[];for(let r=0;r!==t[n].morphTargets.length;++r){const r=t[n];e.push(r.time),s.push(r.morphTarget===i?1:0)}r.push(new $p(".morphTargetInfluence["+i+"]",e,s))}a=e.length*(s||1)}else{const i=".bones["+e[c].name+"]";n(rd,i+".position",t,"pos",r),n(ed,i+".quaternion",t,"rot",r),n(rd,i+".scale",t,"scl",r)}}return 0===r.length?null:new this(i,a,r,o)}resetDuration(){let t=0;for(let e=0,n=this.tracks.length;e!==n;++e){const n=this.tracks[e];t=Math.max(t,n.times[n.times.length-1])}return this.duration=t,this}trim(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this}validate(){let t=!0;for(let e=0;e<this.tracks.length;e++)t=t&&this.tracks[e].validate();return t}optimize(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}clone(){const t=[];for(let e=0;e<this.tracks.length;e++)t.push(this.tracks[e].clone());return new this.constructor(this.name,this.duration,t,this.blendMode)}toJSON(){return this.constructor.toJSON(this)}}function sd(t){switch(t.toLowerCase()){case"scalar":case"double":case"float":case"number":case"integer":return $p;case"vector":case"vector2":case"vector3":case"vector4":return rd;case"color":return Kp;case"quaternion":return ed;case"bool":case"boolean":return Qp;case"string":return nd}throw new Error("THREE.KeyframeTrack: Unsupported typeName: "+t)}function od(t){if(void 0===t.type)throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");const e=sd(t.type);if(void 0===t.times){const e=[],n=[];jp.flattenJSON(t.keys,e,n,"value"),t.times=e,t.values=n}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)}exports.AnimationClip=id;const ad={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}};function ld(t,e,n){const r=this;let i=!1,s=0,o=0,a=void 0;const l=[];this.onStart=void 0,this.onLoad=t,this.onProgress=e,this.onError=n,this.itemStart=function(t){o++,!1===i&&void 0!==r.onStart&&r.onStart(t,s,o),i=!0},this.itemEnd=function(t){s++,void 0!==r.onProgress&&r.onProgress(t,s,o),s===o&&(i=!1,void 0!==r.onLoad&&r.onLoad())},this.itemError=function(t){void 0!==r.onError&&r.onError(t)},this.resolveURL=function(t){return a?a(t):t},this.setURLModifier=function(t){return a=t,this},this.addHandler=function(t,e){return l.push(t,e),this},this.removeHandler=function(t){const e=l.indexOf(t);return-1!==e&&l.splice(e,2),this},this.getHandler=function(t){for(let e=0,n=l.length;e<n;e+=2){const n=l[e],r=l[e+1];if(n.global&&(n.lastIndex=0),n.test(t))return r}return null}}exports.Cache=ad;const cd=new ld;function hd(t){this.manager=void 0!==t?t:cd,this.crossOrigin="anonymous",this.withCredentials=!1,this.path="",this.resourcePath="",this.requestHeader={}}exports.DefaultLoadingManager=cd,Object.assign(hd.prototype,{load:function(){},loadAsync:function(t,e){const n=this;return new Promise(function(r,i){n.load(t,r,e,i)})},parse:function(){},setCrossOrigin:function(t){return this.crossOrigin=t,this},setWithCredentials:function(t){return this.withCredentials=t,this},setPath:function(t){return this.path=t,this},setResourcePath:function(t){return this.resourcePath=t,this},setRequestHeader:function(t){return this.requestHeader=t,this}});const ud={};function pd(t){hd.call(this,t)}pd.prototype=Object.assign(Object.create(hd.prototype),{constructor:pd,load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;if(void 0!==ud[t])return void ud[t].push({onLoad:e,onProgress:n,onError:r});const o=t.match(/^data:(.*?)(;base64)?,(.*)$/);let a;if(o){const n=o[1],s=!!o[2];let a=o[3];a=decodeURIComponent(a),s&&(a=atob(a));try{let s;const o=(this.responseType||"").toLowerCase();switch(o){case"arraybuffer":case"blob":const t=new Uint8Array(a.length);for(let n=0;n<a.length;n++)t[n]=a.charCodeAt(n);s="blob"===o?new Blob([t.buffer],{type:n}):t.buffer;break;case"document":const e=new DOMParser;s=e.parseFromString(a,n);break;case"json":s=JSON.parse(a);break;default:s=a}setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0)}catch(l){setTimeout(function(){r&&r(l),i.manager.itemError(t),i.manager.itemEnd(t)},0)}}else{ud[t]=[],ud[t].push({onLoad:e,onProgress:n,onError:r}),(a=new XMLHttpRequest).open("GET",t,!0),a.addEventListener("load",function(e){const n=this.response,r=ud[t];if(delete ud[t],200===this.status||0===this.status){0===this.status&&console.warn("THREE.FileLoader: HTTP Status 0 received."),ad.add(t,n);for(let t=0,e=r.length;t<e;t++){const e=r[t];e.onLoad&&e.onLoad(n)}i.manager.itemEnd(t)}else{for(let t=0,n=r.length;t<n;t++){const n=r[t];n.onError&&n.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)}},!1),a.addEventListener("progress",function(e){const n=ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onProgress&&r.onProgress(e)}},!1),a.addEventListener("error",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),a.addEventListener("abort",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),void 0!==this.responseType&&(a.responseType=this.responseType),void 0!==this.withCredentials&&(a.withCredentials=this.withCredentials),a.overrideMimeType&&a.overrideMimeType(void 0!==this.mimeType?this.mimeType:"text/plain");for(const t in this.requestHeader)a.setRequestHeader(t,this.requestHeader[t]);a.send(null)}return i.manager.itemStart(t),a},setResponseType:function(t){return this.responseType=t,this},setMimeType:function(t){return this.mimeType=t,this}});class dd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=[];for(let n=0;n<t.length;n++){const r=id.parse(t[n]);e.push(r)}return e}}function md(t){hd.call(this,t)}exports.AnimationLoader=dd,md.prototype=Object.assign(Object.create(hd.prototype),{constructor:md,load:function(t,e,n,r){const i=this,s=[],o=new wu,a=new pd(this.manager);a.setPath(this.path),a.setResponseType("arraybuffer"),a.setRequestHeader(this.requestHeader),a.setWithCredentials(i.withCredentials);let l=0;function c(c){a.load(t[c],function(t){const n=i.parse(t,!0);s[c]={width:n.width,height:n.height,format:n.format,mipmaps:n.mipmaps},6===(l+=1)&&(1===n.mipmapCount&&(o.minFilter=gt),o.image=s,o.format=n.format,o.needsUpdate=!0,e&&e(o))},n,r)}if(Array.isArray(t))for(let h=0,u=t.length;h<u;++h)c(h);else a.load(t,function(t){const n=i.parse(t,!0);if(n.isCubemap){const t=n.mipmaps.length/n.mipmapCount;for(let e=0;e<t;e++){s[e]={mipmaps:[]};for(let t=0;t<n.mipmapCount;t++)s[e].mipmaps.push(n.mipmaps[e*n.mipmapCount+t]),s[e].format=n.format,s[e].width=n.width,s[e].height=n.height}o.image=s}else o.image.width=n.width,o.image.height=n.height,o.mipmaps=n.mipmaps;1===n.mipmapCount&&(o.minFilter=gt),o.format=n.format,o.needsUpdate=!0,e&&e(o)},n,r);return o}});class fd extends hd{constructor(t){super(t)}load(t,e,n,r){void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o=document.createElementNS("http://www.w3.org/1999/xhtml","img");function a(){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),ad.add(t,this),e&&e(this),i.manager.itemEnd(t)}function l(e){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}return o.addEventListener("load",a,!1),o.addEventListener("error",l,!1),"data:"!==t.substr(0,5)&&void 0!==this.crossOrigin&&(o.crossOrigin=this.crossOrigin),i.manager.itemStart(t),o.src=t,o}}exports.ImageLoader=fd;class gd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=new bs,s=new fd(this.manager);s.setCrossOrigin(this.crossOrigin),s.setPath(this.path);let o=0;function a(n){s.load(t[n],function(t){i.images[n]=t,6===++o&&(i.needsUpdate=!0,e&&e(i))},void 0,r)}for(let l=0;l<t.length;++l)a(l);return i}}function xd(t){hd.call(this,t)}function vd(t){hd.call(this,t)}function yd(){this.type="Curve",this.arcLengthDivisions=200}exports.CubeTextureLoader=gd,xd.prototype=Object.assign(Object.create(hd.prototype),{constructor:xd,load:function(t,e,n,r){const i=this,s=new Ms,o=new pd(this.manager);return o.setResponseType("arraybuffer"),o.setRequestHeader(this.requestHeader),o.setPath(this.path),o.setWithCredentials(i.withCredentials),o.load(t,function(t){const n=i.parse(t);n&&(void 0!==n.image?s.image=n.image:void 0!==n.data&&(s.image.width=n.width,s.image.height=n.height,s.image.data=n.data),s.wrapS=void 0!==n.wrapS?n.wrapS:ct,s.wrapT=void 0!==n.wrapT?n.wrapT:ct,s.magFilter=void 0!==n.magFilter?n.magFilter:gt,s.minFilter=void 0!==n.minFilter?n.minFilter:gt,s.anisotropy=void 0!==n.anisotropy?n.anisotropy:1,void 0!==n.encoding&&(s.encoding=n.encoding),void 0!==n.flipY&&(s.flipY=n.flipY),void 0!==n.format&&(s.format=n.format),void 0!==n.type&&(s.type=n.type),void 0!==n.mipmaps&&(s.mipmaps=n.mipmaps,s.minFilter=yt),1===n.mipmapCount&&(s.minFilter=gt),s.needsUpdate=!0,e&&e(s,n))},n,r),s}}),vd.prototype=Object.assign(Object.create(hd.prototype),{constructor:vd,load:function(t,e,n,r){const i=new kn,s=new fd(this.manager);return s.setCrossOrigin(this.crossOrigin),s.setPath(this.path),s.load(t,function(n){i.image=n;const r=t.search(/\.jpe?g($|\?)/i)>0||0===t.search(/^data\:image\/jpeg/);i.format=r?Bt:Nt,i.needsUpdate=!0,void 0!==e&&e(i)},n,r),i}}),Object.assign(yd.prototype,{getPoint:function(){return console.warn("THREE.Curve: .getPoint() not implemented."),null},getPointAt:function(t,e){const n=this.getUtoTmapping(t);return this.getPoint(n,e)},getPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return e},getSpacedPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPointAt(n/t));return e},getLength:function(){const t=this.getLengths();return t[t.length-1]},getLengths:function(t){if(void 0===t&&(t=this.arcLengthDivisions),this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;const e=[];let n,r=this.getPoint(0),i=0;e.push(0);for(let s=1;s<=t;s++)i+=(n=this.getPoint(s/t)).distanceTo(r),e.push(i),r=n;return this.cacheArcLengths=e,e},updateArcLengths:function(){this.needsUpdate=!0,this.getLengths()},getUtoTmapping:function(t,e){const n=this.getLengths();let r=0;const i=n.length;let s;s=e||t*n[i-1];let o,a=0,l=i-1;for(;a<=l;)if((o=n[r=Math.floor(a+(l-a)/2)]-s)<0)a=r+1;else{if(!(o>0)){l=r;break}l=r-1}if(n[r=l]===s)return r/(i-1);const c=n[r];return(r+(s-c)/(n[r+1]-c))/(i-1)},getTangent:function(t,e){let n=t-1e-4,r=t+1e-4;n<0&&(n=0),r>1&&(r=1);const i=this.getPoint(n),s=this.getPoint(r),o=e||(i.isVector2?new On:new Yn);return o.copy(s).sub(i).normalize(),o},getTangentAt:function(t,e){const n=this.getUtoTmapping(t);return this.getTangent(n,e)},computeFrenetFrames:function(t,e){const n=new Yn,r=[],i=[],s=[],o=new Yn,a=new wr;for(let p=0;p<=t;p++){const e=p/t;r[p]=this.getTangentAt(e,new Yn),r[p].normalize()}i[0]=new Yn,s[0]=new Yn;let l=Number.MAX_VALUE;const c=Math.abs(r[0].x),h=Math.abs(r[0].y),u=Math.abs(r[0].z);c<=l&&(l=c,n.set(1,0,0)),h<=l&&(l=h,n.set(0,1,0)),u<=l&&n.set(0,0,1),o.crossVectors(r[0],n).normalize(),i[0].crossVectors(r[0],o),s[0].crossVectors(r[0],i[0]);for(let p=1;p<=t;p++){if(i[p]=i[p-1].clone(),s[p]=s[p-1].clone(),o.crossVectors(r[p-1],r[p]),o.length()>Number.EPSILON){o.normalize();const t=Math.acos(Fn.clamp(r[p-1].dot(r[p]),-1,1));i[p].applyMatrix4(a.makeRotationAxis(o,t))}s[p].crossVectors(r[p],i[p])}if(!0===e){let e=Math.acos(Fn.clamp(i[0].dot(i[t]),-1,1));e/=t,r[0].dot(o.crossVectors(i[0],i[t]))>0&&(e=-e);for(let n=1;n<=t;n++)i[n].applyMatrix4(a.makeRotationAxis(r[n],e*n)),s[n].crossVectors(r[n],i[n])}return{tangents:r,normals:i,binormals:s}},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this},toJSON:function(){const t={metadata:{version:4.5,type:"Curve",generator:"Curve.toJSON"}};return t.arcLengthDivisions=this.arcLengthDivisions,t.type=this.type,t},fromJSON:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}});class _d extends yd{constructor(t=0,e=0,n=1,r=1,i=0,s=2*Math.PI,o=!1,a=0){super(),this.type="EllipseCurve",this.aX=t,this.aY=e,this.xRadius=n,this.yRadius=r,this.aStartAngle=i,this.aEndAngle=s,this.aClockwise=o,this.aRotation=a}getPoint(t,e){const n=e||new On,r=2*Math.PI;let i=this.aEndAngle-this.aStartAngle;const s=Math.abs(i)<Number.EPSILON;for(;i<0;)i+=r;for(;i>r;)i-=r;i<Number.EPSILON&&(i=s?0:r),!0!==this.aClockwise||s||(i===r?i=-r:i-=r);const o=this.aStartAngle+t*i;let a=this.aX+this.xRadius*Math.cos(o),l=this.aY+this.yRadius*Math.sin(o);if(0!==this.aRotation){const t=Math.cos(this.aRotation),e=Math.sin(this.aRotation),n=a-this.aX,r=l-this.aY;a=n*t-r*e+this.aX,l=n*e+r*t+this.aY}return n.set(a,l)}copy(t){return super.copy(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}toJSON(){const t=super.toJSON();return t.aX=this.aX,t.aY=this.aY,t.xRadius=this.xRadius,t.yRadius=this.yRadius,t.aStartAngle=this.aStartAngle,t.aEndAngle=this.aEndAngle,t.aClockwise=this.aClockwise,t.aRotation=this.aRotation,t}fromJSON(t){return super.fromJSON(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}}exports.EllipseCurve=_d,_d.prototype.isEllipseCurve=!0;class bd extends _d{constructor(t,e,n,r,i,s){super(t,e,n,n,r,i,s),this.type="ArcCurve"}}function wd(){let t=0,e=0,n=0,r=0;function i(i,s,o,a){t=i,e=o,n=-3*i+3*s-2*o-a,r=2*i-2*s+o+a}return{initCatmullRom:function(t,e,n,r,s){i(e,n,s*(n-t),s*(r-e))},initNonuniformCatmullRom:function(t,e,n,r,s,o,a){let l=(e-t)/s-(n-t)/(s+o)+(n-e)/o,c=(n-e)/o-(r-e)/(o+a)+(r-n)/a;i(e,n,l*=o,c*=o)},calc:function(i){const s=i*i;return t+e*i+n*s+r*(s*i)}}}exports.ArcCurve=bd,bd.prototype.isArcCurve=!0;const Md=new Yn,Sd=new wd,Td=new wd,Ed=new wd;class Ad extends yd{constructor(t=[],e=!1,n="centripetal",r=.5){super(),this.type="CatmullRomCurve3",this.points=t,this.closed=e,this.curveType=n,this.tension=r}getPoint(t,e=new Yn){const n=e,r=this.points,i=r.length,s=(i-(this.closed?0:1))*t;let o,a,l=Math.floor(s),c=s-l;this.closed?l+=l>0?0:(Math.floor(Math.abs(l)/i)+1)*i:0===c&&l===i-1&&(l=i-2,c=1),this.closed||l>0?o=r[(l-1)%i]:(Md.subVectors(r[0],r[1]).add(r[0]),o=Md);const h=r[l%i],u=r[(l+1)%i];if(this.closed||l+2<i?a=r[(l+2)%i]:(Md.subVectors(r[i-1],r[i-2]).add(r[i-1]),a=Md),"centripetal"===this.curveType||"chordal"===this.curveType){const t="chordal"===this.curveType?.5:.25;let e=Math.pow(o.distanceToSquared(h),t),n=Math.pow(h.distanceToSquared(u),t),r=Math.pow(u.distanceToSquared(a),t);n<1e-4&&(n=1),e<1e-4&&(e=n),r<1e-4&&(r=n),Sd.initNonuniformCatmullRom(o.x,h.x,u.x,a.x,e,n,r),Td.initNonuniformCatmullRom(o.y,h.y,u.y,a.y,e,n,r),Ed.initNonuniformCatmullRom(o.z,h.z,u.z,a.z,e,n,r)}else"catmullrom"===this.curveType&&(Sd.initCatmullRom(o.x,h.x,u.x,a.x,this.tension),Td.initCatmullRom(o.y,h.y,u.y,a.y,this.tension),Ed.initCatmullRom(o.z,h.z,u.z,a.z,this.tension));return n.set(Sd.calc(c),Td.calc(c),Ed.calc(c)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t.closed=this.closed,t.curveType=this.curveType,t.tension=this.tension,t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new Yn).fromArray(n))}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}}function Ld(t,e,n,r,i){const s=.5*(r-e),o=.5*(i-n),a=t*t;return(2*n-2*r+s+o)*(t*a)+(-3*n+3*r-2*s-o)*a+s*t+n}function Rd(t,e){const n=1-t;return n*n*e}function Cd(t,e){return 2*(1-t)*t*e}function Pd(t,e){return t*t*e}function Dd(t,e,n,r){return Rd(t,e)+Cd(t,n)+Pd(t,r)}function Id(t,e){const n=1-t;return n*n*n*e}function Bd(t,e){const n=1-t;return 3*n*n*t*e}function Nd(t,e){return 3*(1-t)*t*t*e}function Fd(t,e){return t*t*t*e}function Od(t,e,n,r,i){return Id(t,e)+Bd(t,n)+Nd(t,r)+Fd(t,i)}exports.CatmullRomCurve3=Ad,Ad.prototype.isCatmullRomCurve3=!0;class zd extends yd{constructor(t=new On,e=new On,n=new On,r=new On){super(),this.type="CubicBezierCurve",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve=zd,zd.prototype.isCubicBezierCurve=!0;class Gd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn,r=new Yn){super(),this.type="CubicBezierCurve3",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y),Od(t,r.z,i.z,s.z,o.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve3=Gd,Gd.prototype.isCubicBezierCurve3=!0;class Hd extends yd{constructor(t=new On,e=new On){super(),this.type="LineCurve",this.v1=t,this.v2=e}getPoint(t,e=new On){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e){const n=e||new On;return n.copy(this.v2).sub(this.v1).normalize(),n}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve=Hd,Hd.prototype.isLineCurve=!0;class Ud extends yd{constructor(t=new Yn,e=new Yn){super(),this.type="LineCurve3",this.isLineCurve3=!0,this.v1=t,this.v2=e}getPoint(t,e=new Yn){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve3=Ud;class kd extends yd{constructor(t=new On,e=new On,n=new On){super(),this.type="QuadraticBezierCurve",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve=kd,kd.prototype.isQuadraticBezierCurve=!0;class Vd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn){super(),this.type="QuadraticBezierCurve3",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y),Dd(t,r.z,i.z,s.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve3=Vd,Vd.prototype.isQuadraticBezierCurve3=!0;class Wd extends yd{constructor(t=[]){super(),this.type="SplineCurve",this.points=t}getPoint(t,e=new On){const n=e,r=this.points,i=(r.length-1)*t,s=Math.floor(i),o=i-s,a=r[0===s?s:s-1],l=r[s],c=r[s>r.length-2?r.length-1:s+1],h=r[s>r.length-3?r.length-1:s+2];return n.set(Ld(o,a.x,l.x,c.x,h.x),Ld(o,a.y,l.y,c.y,h.y)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new On).fromArray(n))}return this}}exports.SplineCurve=Wd,Wd.prototype.isSplineCurve=!0;var jd=Object.freeze({__proto__:null,ArcCurve:bd,CatmullRomCurve3:Ad,CubicBezierCurve:zd,CubicBezierCurve3:Gd,EllipseCurve:_d,LineCurve:Hd,LineCurve3:Ud,QuadraticBezierCurve:kd,QuadraticBezierCurve3:Vd,SplineCurve:Wd});class qd extends yd{constructor(){super(),this.type="CurvePath",this.curves=[],this.autoClose=!1}add(t){this.curves.push(t)}closePath(){const t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);t.equals(e)||this.curves.push(new Hd(e,t))}getPoint(t){const e=t*this.getLength(),n=this.getCurveLengths();let r=0;for(;r<n.length;){if(n[r]>=e){const t=n[r]-e,i=this.curves[r],s=i.getLength(),o=0===s?0:1-t/s;return i.getPointAt(o)}r++}return null}getLength(){const t=this.getCurveLengths();return t[t.length-1]}updateArcLengths(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()}getCurveLengths(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;const t=[];let e=0;for(let n=0,r=this.curves.length;n<r;n++)e+=this.curves[n].getLength(),t.push(e);return this.cacheLengths=t,t}getSpacedPoints(t=40){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return this.autoClose&&e.push(e[0]),e}getPoints(t=12){const e=[];let n;for(let r=0,i=this.curves;r<i.length;r++){const s=i[r],o=s&&s.isEllipseCurve?2*t:s&&(s.isLineCurve||s.isLineCurve3)?1:s&&s.isSplineCurve?t*s.points.length:t,a=s.getPoints(o);for(let t=0;t<a.length;t++){const r=a[t];n&&n.equals(r)||(e.push(r),n=r)}}return this.autoClose&&e.length>1&&!e[e.length-1].equals(e[0])&&e.push(e[0]),e}copy(t){super.copy(t),this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push(n.clone())}return this.autoClose=t.autoClose,this}toJSON(){const t=super.toJSON();t.autoClose=this.autoClose,t.curves=[];for(let e=0,n=this.curves.length;e<n;e++){const n=this.curves[e];t.curves.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.autoClose=t.autoClose,this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push((new jd[n.type]).fromJSON(n))}return this}}exports.CurvePath=qd;class Xd extends qd{constructor(t){super(),this.type="Path",this.currentPoint=new On,t&&this.setFromPoints(t)}setFromPoints(t){this.moveTo(t[0].x,t[0].y);for(let e=1,n=t.length;e<n;e++)this.lineTo(t[e].x,t[e].y);return this}moveTo(t,e){return this.currentPoint.set(t,e),this}lineTo(t,e){const n=new Hd(this.currentPoint.clone(),new On(t,e));return this.curves.push(n),this.currentPoint.set(t,e),this}quadraticCurveTo(t,e,n,r){const i=new kd(this.currentPoint.clone(),new On(t,e),new On(n,r));return this.curves.push(i),this.currentPoint.set(n,r),this}bezierCurveTo(t,e,n,r,i,s){const o=new zd(this.currentPoint.clone(),new On(t,e),new On(n,r),new On(i,s));return this.curves.push(o),this.currentPoint.set(i,s),this}splineThru(t){const e=[this.currentPoint.clone()].concat(t),n=new Wd(e);return this.curves.push(n),this.currentPoint.copy(t[t.length-1]),this}arc(t,e,n,r,i,s){const o=this.currentPoint.x,a=this.currentPoint.y;return this.absarc(t+o,e+a,n,r,i,s),this}absarc(t,e,n,r,i,s){return this.absellipse(t,e,n,n,r,i,s),this}ellipse(t,e,n,r,i,s,o,a){const l=this.currentPoint.x,c=this.currentPoint.y;return this.absellipse(t+l,e+c,n,r,i,s,o,a),this}absellipse(t,e,n,r,i,s,o,a){const l=new _d(t,e,n,r,i,s,o,a);if(this.curves.length>0){const t=l.getPoint(0);t.equals(this.currentPoint)||this.lineTo(t.x,t.y)}this.curves.push(l);const c=l.getPoint(1);return this.currentPoint.copy(c),this}copy(t){return super.copy(t),this.currentPoint.copy(t.currentPoint),this}toJSON(){const t=super.toJSON();return t.currentPoint=this.currentPoint.toArray(),t}fromJSON(t){return super.fromJSON(t),this.currentPoint.fromArray(t.currentPoint),this}}exports.Path=Xd;class Yd extends Xd{constructor(t){super(t),this.uuid=Fn.generateUUID(),this.type="Shape",this.holes=[]}getPointsHoles(t){const e=[];for(let n=0,r=this.holes.length;n<r;n++)e[n]=this.holes[n].getPoints(t);return e}extractPoints(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}}copy(t){super.copy(t),this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.uuid=this.uuid,t.holes=[];for(let e=0,n=this.holes.length;e<n;e++){const n=this.holes[e];t.holes.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.uuid=t.uuid,this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push((new Xd).fromJSON(n))}return this}}exports.Shape=Yd;class Zd extends Xr{constructor(t,e=1){super(),this.type="Light",this.color=new xi(t),this.intensity=e}copy(t){return super.copy(t),this.color.copy(t.color),this.intensity=t.intensity,this}toJSON(t){const e=super.toJSON(t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}exports.Light=Zd,Zd.prototype.isLight=!0;class Jd extends Zd{constructor(t,e,n){super(t,n),this.type="HemisphereLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.groundColor=new xi(e)}copy(t){return Zd.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}exports.HemisphereLight=Jd,Jd.prototype.isHemisphereLight=!0;const Qd=new wr,Kd=new Yn,$d=new Yn;class tm{constructor(t){this.camera=t,this.bias=0,this.normalBias=0,this.radius=1,this.mapSize=new On(512,512),this.map=null,this.mapPass=null,this.matrix=new wr,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new Es,this._frameExtents=new On(1,1),this._viewportCount=1,this._viewports=[new Wn(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,n=this.matrix;Kd.setFromMatrixPosition(t.matrixWorld),e.position.copy(Kd),$d.setFromMatrixPosition(t.target.matrixWorld),e.lookAt($d),e.updateMatrixWorld(),Qd.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Qd),n.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),n.multiply(e.projectionMatrix),n.multiply(e.matrixWorldInverse)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}copy(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class em extends tm{constructor(){super(new xs(50,1,.5,500)),this.focus=1}updateMatrices(t){const e=this.camera,n=2*Fn.RAD2DEG*t.angle*this.focus,r=this.mapSize.width/this.mapSize.height,i=t.distance||e.far;n===e.fov&&r===e.aspect&&i===e.far||(e.fov=n,e.aspect=r,e.far=i,e.updateProjectionMatrix()),super.updateMatrices(t)}}em.prototype.isSpotLightShadow=!0;class nm extends Zd{constructor(t,e,n=0,r=Math.PI/3,i=0,s=1){super(t,e),this.type="SpotLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.distance=n,this.angle=r,this.penumbra=i,this.decay=s,this.shadow=new em}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}copy(t){return super.copy(t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.SpotLight=nm,nm.prototype.isSpotLight=!0;const rm=new wr,im=new Yn,sm=new Yn;class om extends tm{constructor(){super(new xs(90,1,.5,500)),this._frameExtents=new On(4,2),this._viewportCount=6,this._viewports=[new Wn(2,1,1,1),new Wn(0,1,1,1),new Wn(3,1,1,1),new Wn(1,1,1,1),new Wn(3,0,1,1),new Wn(1,0,1,1)],this._cubeDirections=[new Yn(1,0,0),new Yn(-1,0,0),new Yn(0,0,1),new Yn(0,0,-1),new Yn(0,1,0),new Yn(0,-1,0)],this._cubeUps=[new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,0,1),new Yn(0,0,-1)]}updateMatrices(t,e=0){const n=this.camera,r=this.matrix;im.setFromMatrixPosition(t.matrixWorld),n.position.copy(im),sm.copy(n.position),sm.add(this._cubeDirections[e]),n.up.copy(this._cubeUps[e]),n.lookAt(sm),n.updateMatrixWorld(),r.makeTranslation(-im.x,-im.y,-im.z),rm.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),this._frustum.setFromProjectionMatrix(rm)}}om.prototype.isPointLightShadow=!0;class am extends Zd{constructor(t,e,n=0,r=1){super(t,e),this.type="PointLight",this.distance=n,this.decay=r,this.shadow=new om}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}copy(t){return super.copy(t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}exports.PointLight=am,am.prototype.isPointLight=!0;class lm extends gs{constructor(t=-1,e=1,n=1,r=-1,i=.1,s=2e3){super(),this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=n,this.bottom=r,this.near=i,this.far=s,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,n,r,i,s){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,r=(this.top+this.bottom)/2;let i=n-t,s=n+t,o=r+e,a=r-e;if(null!==this.view&&this.view.enabled){const t=(this.right-this.left)/this.view.fullWidth/this.zoom,e=(this.top-this.bottom)/this.view.fullHeight/this.zoom;s=(i+=t*this.view.offsetX)+t*this.view.width,a=(o-=e*this.view.offsetY)-e*this.view.height}this.projectionMatrix.makeOrthographic(i,s,o,a,this.near,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}exports.OrthographicCamera=lm,lm.prototype.isOrthographicCamera=!0;class cm extends tm{constructor(){super(new lm(-5,5,5,-5,.5,500))}}cm.prototype.isDirectionalLightShadow=!0;class hm extends Zd{constructor(t,e){super(t,e),this.type="DirectionalLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.shadow=new cm}copy(t){return super.copy(t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.DirectionalLight=hm,hm.prototype.isDirectionalLight=!0;class um extends Zd{constructor(t,e){super(t,e),this.type="AmbientLight"}}exports.AmbientLight=um,um.prototype.isAmbientLight=!0;class pm extends Zd{constructor(t,e,n=10,r=10){super(t,e),this.type="RectAreaLight",this.width=n,this.height=r}copy(t){return super.copy(t),this.width=t.width,this.height=t.height,this}toJSON(t){const e=super.toJSON(t);return e.object.width=this.width,e.object.height=this.height,e}}exports.RectAreaLight=pm,pm.prototype.isRectAreaLight=!0;class dm{constructor(){this.coefficients=[];for(let t=0;t<9;t++)this.coefficients.push(new Yn)}set(t){for(let e=0;e<9;e++)this.coefficients[e].copy(t[e]);return this}zero(){for(let t=0;t<9;t++)this.coefficients[t].set(0,0,0);return this}getAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.282095),e.addScaledVector(s[1],.488603*r),e.addScaledVector(s[2],.488603*i),e.addScaledVector(s[3],.488603*n),e.addScaledVector(s[4],n*r*1.092548),e.addScaledVector(s[5],r*i*1.092548),e.addScaledVector(s[6],.315392*(3*i*i-1)),e.addScaledVector(s[7],n*i*1.092548),e.addScaledVector(s[8],.546274*(n*n-r*r)),e}getIrradianceAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.886227),e.addScaledVector(s[1],1.023328*r),e.addScaledVector(s[2],1.023328*i),e.addScaledVector(s[3],1.023328*n),e.addScaledVector(s[4],.858086*n*r),e.addScaledVector(s[5],.858086*r*i),e.addScaledVector(s[6],.743125*i*i-.247708),e.addScaledVector(s[7],.858086*n*i),e.addScaledVector(s[8],.429043*(n*n-r*r)),e}add(t){for(let e=0;e<9;e++)this.coefficients[e].add(t.coefficients[e]);return this}addScaledSH(t,e){for(let n=0;n<9;n++)this.coefficients[n].addScaledVector(t.coefficients[n],e);return this}scale(t){for(let e=0;e<9;e++)this.coefficients[e].multiplyScalar(t);return this}lerp(t,e){for(let n=0;n<9;n++)this.coefficients[n].lerp(t.coefficients[n],e);return this}equals(t){for(let e=0;e<9;e++)if(!this.coefficients[e].equals(t.coefficients[e]))return!1;return!0}copy(t){return this.set(t.coefficients)}clone(){return(new this.constructor).copy(this)}fromArray(t,e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].fromArray(t,e+3*r);return this}toArray(t=[],e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].toArray(t,e+3*r);return t}static getBasisAt(t,e){const n=t.x,r=t.y,i=t.z;e[0]=.282095,e[1]=.488603*r,e[2]=.488603*i,e[3]=.488603*n,e[4]=1.092548*n*r,e[5]=1.092548*r*i,e[6]=.315392*(3*i*i-1),e[7]=1.092548*n*i,e[8]=.546274*(n*n-r*r)}}exports.SphericalHarmonics3=dm,dm.prototype.isSphericalHarmonics3=!0;class mm extends Zd{constructor(t=new dm,e=1){super(void 0,e),this.sh=t}copy(t){return super.copy(t),this.sh.copy(t.sh),this}fromJSON(t){return this.intensity=t.intensity,this.sh.fromArray(t.sh),this}toJSON(t){const e=super.toJSON(t);return e.object.sh=this.sh.toArray(),e}}exports.LightProbe=mm,mm.prototype.isLightProbe=!0;class fm extends hd{constructor(t){super(t),this.textures={}}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=this.textures;function n(t){return void 0===e[t]&&console.warn("THREE.MaterialLoader: Undefined texture",t),e[t]}const r=new Wp[t.type];if(void 0!==t.uuid&&(r.uuid=t.uuid),void 0!==t.name&&(r.name=t.name),void 0!==t.color&&void 0!==r.color&&r.color.setHex(t.color),void 0!==t.roughness&&(r.roughness=t.roughness),void 0!==t.metalness&&(r.metalness=t.metalness),void 0!==t.sheen&&(r.sheen=(new xi).setHex(t.sheen)),void 0!==t.emissive&&void 0!==r.emissive&&r.emissive.setHex(t.emissive),void 0!==t.specular&&void 0!==r.specular&&r.specular.setHex(t.specular),void 0!==t.shininess&&(r.shininess=t.shininess),void 0!==t.clearcoat&&(r.clearcoat=t.clearcoat),void 0!==t.clearcoatRoughness&&(r.clearcoatRoughness=t.clearcoatRoughness),void 0!==t.fog&&(r.fog=t.fog),void 0!==t.flatShading&&(r.flatShading=t.flatShading),void 0!==t.blending&&(r.blending=t.blending),void 0!==t.combine&&(r.combine=t.combine),void 0!==t.side&&(r.side=t.side),void 0!==t.opacity&&(r.opacity=t.opacity),void 0!==t.transparent&&(r.transparent=t.transparent),void 0!==t.alphaTest&&(r.alphaTest=t.alphaTest),void 0!==t.depthTest&&(r.depthTest=t.depthTest),void 0!==t.depthWrite&&(r.depthWrite=t.depthWrite),void 0!==t.colorWrite&&(r.colorWrite=t.colorWrite),void 0!==t.stencilWrite&&(r.stencilWrite=t.stencilWrite),void 0!==t.stencilWriteMask&&(r.stencilWriteMask=t.stencilWriteMask),void 0!==t.stencilFunc&&(r.stencilFunc=t.stencilFunc),void 0!==t.stencilRef&&(r.stencilRef=t.stencilRef),void 0!==t.stencilFuncMask&&(r.stencilFuncMask=t.stencilFuncMask),void 0!==t.stencilFail&&(r.stencilFail=t.stencilFail),void 0!==t.stencilZFail&&(r.stencilZFail=t.stencilZFail),void 0!==t.stencilZPass&&(r.stencilZPass=t.stencilZPass),void 0!==t.wireframe&&(r.wireframe=t.wireframe),void 0!==t.wireframeLinewidth&&(r.wireframeLinewidth=t.wireframeLinewidth),void 0!==t.wireframeLinecap&&(r.wireframeLinecap=t.wireframeLinecap),void 0!==t.wireframeLinejoin&&(r.wireframeLinejoin=t.wireframeLinejoin),void 0!==t.rotation&&(r.rotation=t.rotation),1!==t.linewidth&&(r.linewidth=t.linewidth),void 0!==t.dashSize&&(r.dashSize=t.dashSize),void 0!==t.gapSize&&(r.gapSize=t.gapSize),void 0!==t.scale&&(r.scale=t.scale),void 0!==t.polygonOffset&&(r.polygonOffset=t.polygonOffset),void 0!==t.polygonOffsetFactor&&(r.polygonOffsetFactor=t.polygonOffsetFactor),void 0!==t.polygonOffsetUnits&&(r.polygonOffsetUnits=t.polygonOffsetUnits),void 0!==t.skinning&&(r.skinning=t.skinning),void 0!==t.morphTargets&&(r.morphTargets=t.morphTargets),void 0!==t.morphNormals&&(r.morphNormals=t.morphNormals),void 0!==t.dithering&&(r.dithering=t.dithering),void 0!==t.vertexTangents&&(r.vertexTangents=t.vertexTangents),void 0!==t.visible&&(r.visible=t.visible),void 0!==t.toneMapped&&(r.toneMapped=t.toneMapped),void 0!==t.userData&&(r.userData=t.userData),void 0!==t.vertexColors&&("number"==typeof t.vertexColors?r.vertexColors=t.vertexColors>0:r.vertexColors=t.vertexColors),void 0!==t.uniforms)for(const i in t.uniforms){const e=t.uniforms[i];switch(r.uniforms[i]={},e.type){case"t":r.uniforms[i].value=n(e.value);break;case"c":r.uniforms[i].value=(new xi).setHex(e.value);break;case"v2":r.uniforms[i].value=(new On).fromArray(e.value);break;case"v3":r.uniforms[i].value=(new Yn).fromArray(e.value);break;case"v4":r.uniforms[i].value=(new Wn).fromArray(e.value);break;case"m3":r.uniforms[i].value=(new zn).fromArray(e.value);break;case"m4":r.uniforms[i].value=(new wr).fromArray(e.value);break;default:r.uniforms[i].value=e.value}}if(void 0!==t.defines&&(r.defines=t.defines),void 0!==t.vertexShader&&(r.vertexShader=t.vertexShader),void 0!==t.fragmentShader&&(r.fragmentShader=t.fragmentShader),void 0!==t.extensions)for(const i in t.extensions)r.extensions[i]=t.extensions[i];if(void 0!==t.shading&&(r.flatShading=1===t.shading),void 0!==t.size&&(r.size=t.size),void 0!==t.sizeAttenuation&&(r.sizeAttenuation=t.sizeAttenuation),void 0!==t.map&&(r.map=n(t.map)),void 0!==t.matcap&&(r.matcap=n(t.matcap)),void 0!==t.alphaMap&&(r.alphaMap=n(t.alphaMap)),void 0!==t.bumpMap&&(r.bumpMap=n(t.bumpMap)),void 0!==t.bumpScale&&(r.bumpScale=t.bumpScale),void 0!==t.normalMap&&(r.normalMap=n(t.normalMap)),void 0!==t.normalMapType&&(r.normalMapType=t.normalMapType),void 0!==t.normalScale){let e=t.normalScale;!1===Array.isArray(e)&&(e=[e,e]),r.normalScale=(new On).fromArray(e)}return void 0!==t.displacementMap&&(r.displacementMap=n(t.displacementMap)),void 0!==t.displacementScale&&(r.displacementScale=t.displacementScale),void 0!==t.displacementBias&&(r.displacementBias=t.displacementBias),void 0!==t.roughnessMap&&(r.roughnessMap=n(t.roughnessMap)),void 0!==t.metalnessMap&&(r.metalnessMap=n(t.metalnessMap)),void 0!==t.emissiveMap&&(r.emissiveMap=n(t.emissiveMap)),void 0!==t.emissiveIntensity&&(r.emissiveIntensity=t.emissiveIntensity),void 0!==t.specularMap&&(r.specularMap=n(t.specularMap)),void 0!==t.envMap&&(r.envMap=n(t.envMap)),void 0!==t.envMapIntensity&&(r.envMapIntensity=t.envMapIntensity),void 0!==t.reflectivity&&(r.reflectivity=t.reflectivity),void 0!==t.refractionRatio&&(r.refractionRatio=t.refractionRatio),void 0!==t.lightMap&&(r.lightMap=n(t.lightMap)),void 0!==t.lightMapIntensity&&(r.lightMapIntensity=t.lightMapIntensity),void 0!==t.aoMap&&(r.aoMap=n(t.aoMap)),void 0!==t.aoMapIntensity&&(r.aoMapIntensity=t.aoMapIntensity),void 0!==t.gradientMap&&(r.gradientMap=n(t.gradientMap)),void 0!==t.clearcoatMap&&(r.clearcoatMap=n(t.clearcoatMap)),void 0!==t.clearcoatRoughnessMap&&(r.clearcoatRoughnessMap=n(t.clearcoatRoughnessMap)),void 0!==t.clearcoatNormalMap&&(r.clearcoatNormalMap=n(t.clearcoatNormalMap)),void 0!==t.clearcoatNormalScale&&(r.clearcoatNormalScale=(new On).fromArray(t.clearcoatNormalScale)),void 0!==t.transmission&&(r.transmission=t.transmission),void 0!==t.transmissionMap&&(r.transmissionMap=n(t.transmissionMap)),r}setTextures(t){return this.textures=t,this}}exports.MaterialLoader=fm;const gm={decodeText:function(t){if("undefined"!=typeof TextDecoder)return(new TextDecoder).decode(t);let e="";for(let r=0,i=t.length;r<i;r++)e+=String.fromCharCode(t[r]);try{return decodeURIComponent(escape(e))}catch(n){return e}},extractUrlBase:function(t){const e=t.lastIndexOf("/");return-1===e?"./":t.substr(0,e+1)}};function xm(){ki.call(this),this.type="InstancedBufferGeometry",this.instanceCount=1/0}function vm(t,e,n,r){"number"==typeof n&&(r=n,n=!1,console.error("THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.")),bi.call(this,t,e,n),this.meshPerAttribute=r||1}exports.LoaderUtils=gm,xm.prototype=Object.assign(Object.create(ki.prototype),{constructor:xm,isInstancedBufferGeometry:!0,copy:function(t){return ki.prototype.copy.call(this,t),this.instanceCount=t.instanceCount,this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){const t=ki.prototype.toJSON.call(this);return t.instanceCount=this.instanceCount,t.isInstancedBufferGeometry=!0,t}}),vm.prototype=Object.assign(Object.create(bi.prototype),{constructor:vm,isInstancedBufferAttribute:!0,copy:function(t){return bi.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},toJSON:function(){const t=bi.prototype.toJSON.call(this);return t.meshPerAttribute=this.meshPerAttribute,t.isInstancedBufferAttribute=!0,t}});class ym extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e={},n={};function r(t,r){if(void 0!==e[r])return e[r];const i=t.interleavedBuffers[r],s=function(t,e){if(void 0!==n[e])return n[e];const r=t.arrayBuffers[e],i=new Uint32Array(r).buffer;return n[e]=i,i}(t,i.buffer),o=new _h(Bi(i.type,s),i.stride);return o.uuid=i.uuid,e[r]=o,o}const i=t.isInstancedBufferGeometry?new xm:new ki,s=t.data.index;if(void 0!==s){const t=Bi(s.type,s.array);i.setIndex(new bi(t,1))}const o=t.data.attributes;for(const h in o){const e=o[h];let n;if(e.isInterleavedBufferAttribute){n=new wh(r(t.data,e.data),e.itemSize,e.offset,e.normalized)}else{const t=Bi(e.type,e.array);n=new(e.isInstancedBufferAttribute?vm:bi)(t,e.itemSize,e.normalized)}void 0!==e.name&&(n.name=e.name),i.setAttribute(h,n)}const a=t.data.morphAttributes;if(a)for(const h in a){const e=a[h],n=[];for(let i=0,s=e.length;i<s;i++){const s=e[i];let o;if(s.isInterleavedBufferAttribute){o=new wh(r(t.data,s.data),s.itemSize,s.offset,s.normalized)}else{o=new bi(Bi(s.type,s.array),s.itemSize,s.normalized)}void 0!==s.name&&(o.name=s.name),n.push(o)}i.morphAttributes[h]=n}t.data.morphTargetsRelative&&(i.morphTargetsRelative=!0);const l=t.data.groups||t.data.drawcalls||t.data.offsets;if(void 0!==l)for(let h=0,u=l.length;h!==u;++h){const t=l[h];i.addGroup(t.start,t.count,t.materialIndex)}const c=t.data.boundingSphere;if(void 0!==c){const t=new Yn;void 0!==c.center&&t.fromArray(c.center),i.boundingSphere=new dr(t,c.radius)}return t.name&&(i.name=t.name),t.userData&&(i.userData=t.userData),i}}exports.BufferGeometryLoader=ym;class _m extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=""===this.path?gm.extractUrlBase(t):this.path;this.resourcePath=this.resourcePath||s;const o=new pd(this.manager);o.setPath(this.path),o.setRequestHeader(this.requestHeader),o.setWithCredentials(this.withCredentials),o.load(t,function(n){let s=null;try{s=JSON.parse(n)}catch(a){return void 0!==r&&r(a),void console.error("THREE:ObjectLoader: Can't parse "+t+".",a.message)}const o=s.metadata;void 0!==o&&void 0!==o.type&&"geometry"!==o.type.toLowerCase()?i.parse(s,e):console.error("THREE.ObjectLoader: Can't load "+t)},n,r)}parse(t,e){const n=this.parseAnimations(t.animations),r=this.parseShapes(t.shapes),i=this.parseGeometries(t.geometries,r),s=this.parseImages(t.images,function(){void 0!==e&&e(l)}),o=this.parseTextures(t.textures,s),a=this.parseMaterials(t.materials,o),l=this.parseObject(t.object,i,a,n),c=this.parseSkeletons(t.skeletons,l);if(this.bindSkeletons(l,c),void 0!==e){let t=!1;for(const e in s)if(s[e]instanceof HTMLImageElement){t=!0;break}!1===t&&e(l)}return l}parseShapes(t){const e={};if(void 0!==t)for(let n=0,r=t.length;n<r;n++){const r=(new Yd).fromJSON(t[n]);e[r.uuid]=r}return e}parseSkeletons(t,e){const n={},r={};if(e.traverse(function(t){t.isBone&&(r[t.uuid]=t)}),void 0!==t)for(let i=0,s=t.length;i<s;i++){const e=(new Qh).fromJSON(t[i],r);n[e.uuid]=e}return n}parseGeometries(t,e){const n={};let r;if(void 0!==t){const i=new ym;for(let s=0,o=t.length;s<o;s++){let o;const a=t[s];switch(a.type){case"PlaneGeometry":case"PlaneBufferGeometry":o=new Ip[a.type](a.width,a.height,a.widthSegments,a.heightSegments);break;case"BoxGeometry":case"BoxBufferGeometry":o=new Ip[a.type](a.width,a.height,a.depth,a.widthSegments,a.heightSegments,a.depthSegments);break;case"CircleGeometry":case"CircleBufferGeometry":o=new Ip[a.type](a.radius,a.segments,a.thetaStart,a.thetaLength);break;case"CylinderGeometry":case"CylinderBufferGeometry":o=new Ip[a.type](a.radiusTop,a.radiusBottom,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"ConeGeometry":case"ConeBufferGeometry":o=new Ip[a.type](a.radius,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"SphereGeometry":case"SphereBufferGeometry":o=new Ip[a.type](a.radius,a.widthSegments,a.heightSegments,a.phiStart,a.phiLength,a.thetaStart,a.thetaLength);break;case"DodecahedronGeometry":case"DodecahedronBufferGeometry":case"IcosahedronGeometry":case"IcosahedronBufferGeometry":case"OctahedronGeometry":case"OctahedronBufferGeometry":case"TetrahedronGeometry":case"TetrahedronBufferGeometry":o=new Ip[a.type](a.radius,a.detail);break;case"RingGeometry":case"RingBufferGeometry":o=new Ip[a.type](a.innerRadius,a.outerRadius,a.thetaSegments,a.phiSegments,a.thetaStart,a.thetaLength);break;case"TorusGeometry":case"TorusBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.radialSegments,a.tubularSegments,a.arc);break;case"TorusKnotGeometry":case"TorusKnotBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.tubularSegments,a.radialSegments,a.p,a.q);break;case"TubeGeometry":case"TubeBufferGeometry":o=new Ip[a.type]((new jd[a.path.type]).fromJSON(a.path),a.tubularSegments,a.radius,a.radialSegments,a.closed);break;case"LatheGeometry":case"LatheBufferGeometry":o=new Ip[a.type](a.points,a.segments,a.phiStart,a.phiLength);break;case"PolyhedronGeometry":case"PolyhedronBufferGeometry":o=new Ip[a.type](a.vertices,a.indices,a.radius,a.details);break;case"ShapeGeometry":case"ShapeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}o=new Ip[a.type](r,a.curveSegments);break;case"ExtrudeGeometry":case"ExtrudeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}const t=a.options.extrudePath;void 0!==t&&(a.options.extrudePath=(new jd[t.type]).fromJSON(t)),o=new Ip[a.type](r,a.options);break;case"BufferGeometry":case"InstancedBufferGeometry":o=i.parse(a);break;case"Geometry":console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type "'+a.type+'"');continue}o.uuid=a.uuid,void 0!==a.name&&(o.name=a.name),!0===o.isBufferGeometry&&void 0!==a.userData&&(o.userData=a.userData),n[a.uuid]=o}}return n}parseMaterials(t,e){const n={},r={};if(void 0!==t){const i=new fm;i.setTextures(e);for(let e=0,s=t.length;e<s;e++){const s=t[e];if("MultiMaterial"===s.type){const t=[];for(let e=0;e<s.materials.length;e++){const r=s.materials[e];void 0===n[r.uuid]&&(n[r.uuid]=i.parse(r)),t.push(n[r.uuid])}r[s.uuid]=t}else void 0===n[s.uuid]&&(n[s.uuid]=i.parse(s)),r[s.uuid]=n[s.uuid]}}return r}parseAnimations(t){const e={};if(void 0!==t)for(let n=0;n<t.length;n++){const r=t[n],i=id.parse(r);e[i.uuid]=i}return e}parseImages(t,e){const n=this,r={};let i;function s(t){if("string"==typeof t){const e=t;return function(t){return n.manager.itemStart(t),i.load(t,function(){n.manager.itemEnd(t)},void 0,function(){n.manager.itemError(t),n.manager.itemEnd(t)})}(/^(\/\/)|([a-z]+:(\/\/)?)/i.test(e)?e:n.resourcePath+e)}return t.data?{data:Bi(t.type,t.data),width:t.width,height:t.height}:null}if(void 0!==t&&t.length>0){const n=new ld(e);(i=new fd(n)).setCrossOrigin(this.crossOrigin);for(let e=0,i=t.length;e<i;e++){const n=t[e],i=n.url;if(Array.isArray(i)){r[n.uuid]=[];for(let t=0,e=i.length;t<e;t++){const e=s(i[t]);null!==e&&(e instanceof HTMLImageElement?r[n.uuid].push(e):r[n.uuid].push(new Ms(e.data,e.width,e.height)))}}else{const t=s(n.url);null!==t&&(r[n.uuid]=t)}}}return r}parseTextures(t,e){function n(t,e){return"number"==typeof t?t:(console.warn("THREE.ObjectLoader.parseTexture: Constant should be in numeric form.",t),e[t])}const r={};if(void 0!==t)for(let i=0,s=t.length;i<s;i++){const s=t[i];let o;void 0===s.image&&console.warn('THREE.ObjectLoader: No "image" specified for',s.uuid),void 0===e[s.image]&&console.warn("THREE.ObjectLoader: Undefined image",s.image);const a=e[s.image];Array.isArray(a)?(o=new bs(a),6===a.length&&(o.needsUpdate=!0)):(o=a&&a.data?new Ms(a.data,a.width,a.height):new kn(a),a&&(o.needsUpdate=!0)),o.uuid=s.uuid,void 0!==s.name&&(o.name=s.name),void 0!==s.mapping&&(o.mapping=n(s.mapping,bm)),void 0!==s.offset&&o.offset.fromArray(s.offset),void 0!==s.repeat&&o.repeat.fromArray(s.repeat),void 0!==s.center&&o.center.fromArray(s.center),void 0!==s.rotation&&(o.rotation=s.rotation),void 0!==s.wrap&&(o.wrapS=n(s.wrap[0],wm),o.wrapT=n(s.wrap[1],wm)),void 0!==s.format&&(o.format=s.format),void 0!==s.type&&(o.type=s.type),void 0!==s.encoding&&(o.encoding=s.encoding),void 0!==s.minFilter&&(o.minFilter=n(s.minFilter,Mm)),void 0!==s.magFilter&&(o.magFilter=n(s.magFilter,Mm)),void 0!==s.anisotropy&&(o.anisotropy=s.anisotropy),void 0!==s.flipY&&(o.flipY=s.flipY),void 0!==s.premultiplyAlpha&&(o.premultiplyAlpha=s.premultiplyAlpha),void 0!==s.unpackAlignment&&(o.unpackAlignment=s.unpackAlignment),r[s.uuid]=o}return r}parseObject(t,e,n,r){let i,s,o;function a(t){return void 0===e[t]&&console.warn("THREE.ObjectLoader: Undefined geometry",t),e[t]}function l(t){if(void 0!==t){if(Array.isArray(t)){const e=[];for(let r=0,i=t.length;r<i;r++){const i=t[r];void 0===n[i]&&console.warn("THREE.ObjectLoader: Undefined material",i),e.push(n[i])}return e}return void 0===n[t]&&console.warn("THREE.ObjectLoader: Undefined material",t),n[t]}}switch(t.type){case"Scene":i=new yh,void 0!==t.background&&Number.isInteger(t.background)&&(i.background=new xi(t.background)),void 0!==t.fog&&("Fog"===t.fog.type?i.fog=new vh(t.fog.color,t.fog.near,t.fog.far):"FogExp2"===t.fog.type&&(i.fog=new xh(t.fog.color,t.fog.density)));break;case"PerspectiveCamera":i=new xs(t.fov,t.aspect,t.near,t.far),void 0!==t.focus&&(i.focus=t.focus),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.filmGauge&&(i.filmGauge=t.filmGauge),void 0!==t.filmOffset&&(i.filmOffset=t.filmOffset),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"OrthographicCamera":i=new lm(t.left,t.right,t.top,t.bottom,t.near,t.far),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"AmbientLight":i=new um(t.color,t.intensity);break;case"DirectionalLight":i=new hm(t.color,t.intensity);break;case"PointLight":i=new am(t.color,t.intensity,t.distance,t.decay);break;case"RectAreaLight":i=new pm(t.color,t.intensity,t.width,t.height);break;case"SpotLight":i=new nm(t.color,t.intensity,t.distance,t.angle,t.penumbra,t.decay);break;case"HemisphereLight":i=new Jd(t.color,t.groundColor,t.intensity);break;case"LightProbe":i=(new mm).fromJSON(t);break;case"SkinnedMesh":i=new Xh(s=a(t.geometry),o=l(t.material)),void 0!==t.bindMode&&(i.bindMode=t.bindMode),void 0!==t.bindMatrix&&i.bindMatrix.fromArray(t.bindMatrix),void 0!==t.skeleton&&(i.skeleton=t.skeleton);break;case"Mesh":i=new os(s=a(t.geometry),o=l(t.material));break;case"InstancedMesh":s=a(t.geometry),o=l(t.material);const e=t.count,n=t.instanceMatrix;(i=new nu(s,o,e)).instanceMatrix=new bi(new Float32Array(n.array),16);break;case"LOD":i=new Uh;break;case"Line":i=new cu(a(t.geometry),l(t.material));break;case"LineLoop":i=new du(a(t.geometry),l(t.material));break;case"LineSegments":i=new pu(a(t.geometry),l(t.material));break;case"PointCloud":case"Points":i=new yu(a(t.geometry),l(t.material));break;case"Sprite":i=new Oh(l(t.material));break;case"Group":i=new hh;break;case"Bone":i=new Yh;break;default:i=new Xr}if(i.uuid=t.uuid,void 0!==t.name&&(i.name=t.name),void 0!==t.matrix?(i.matrix.fromArray(t.matrix),void 0!==t.matrixAutoUpdate&&(i.matrixAutoUpdate=t.matrixAutoUpdate),i.matrixAutoUpdate&&i.matrix.decompose(i.position,i.quaternion,i.scale)):(void 0!==t.position&&i.position.fromArray(t.position),void 0!==t.rotation&&i.rotation.fromArray(t.rotation),void 0!==t.quaternion&&i.quaternion.fromArray(t.quaternion),void 0!==t.scale&&i.scale.fromArray(t.scale)),void 0!==t.castShadow&&(i.castShadow=t.castShadow),void 0!==t.receiveShadow&&(i.receiveShadow=t.receiveShadow),t.shadow&&(void 0!==t.shadow.bias&&(i.shadow.bias=t.shadow.bias),void 0!==t.shadow.normalBias&&(i.shadow.normalBias=t.shadow.normalBias),void 0!==t.shadow.radius&&(i.shadow.radius=t.shadow.radius),void 0!==t.shadow.mapSize&&i.shadow.mapSize.fromArray(t.shadow.mapSize),void 0!==t.shadow.camera&&(i.shadow.camera=this.parseObject(t.shadow.camera))),void 0!==t.visible&&(i.visible=t.visible),void 0!==t.frustumCulled&&(i.frustumCulled=t.frustumCulled),void 0!==t.renderOrder&&(i.renderOrder=t.renderOrder),void 0!==t.userData&&(i.userData=t.userData),void 0!==t.layers&&(i.layers.mask=t.layers),void 0!==t.children){const s=t.children;for(let t=0;t<s.length;t++)i.add(this.parseObject(s[t],e,n,r))}if(void 0!==t.animations){const e=t.animations;for(let t=0;t<e.length;t++){const n=e[t];i.animations.push(r[n])}}if("LOD"===t.type){void 0!==t.autoUpdate&&(i.autoUpdate=t.autoUpdate);const e=t.levels;for(let t=0;t<e.length;t++){const n=e[t],r=i.getObjectByProperty("uuid",n.object);void 0!==r&&i.addLevel(r,n.distance)}}return i}bindSkeletons(t,e){0!==Object.keys(e).length&&t.traverse(function(t){if(!0===t.isSkinnedMesh&&void 0!==t.skeleton){const n=e[t.skeleton];void 0===n?console.warn("THREE.ObjectLoader: No skeleton found with UUID:",t.skeleton):t.bind(n,t.bindMatrix)}})}setTexturePath(t){return console.warn("THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath()."),this.setResourcePath(t)}}exports.ObjectLoader=_m;const bm={UVMapping:et,CubeReflectionMapping:nt,CubeRefractionMapping:rt,EquirectangularReflectionMapping:it,EquirectangularRefractionMapping:st,CubeUVReflectionMapping:ot,CubeUVRefractionMapping:at},wm={RepeatWrapping:lt,ClampToEdgeWrapping:ct,MirroredRepeatWrapping:ht},Mm={NearestFilter:ut,NearestMipmapNearestFilter:pt,NearestMipmapLinearFilter:mt,LinearFilter:gt,LinearMipmapNearestFilter:xt,LinearMipmapLinearFilter:yt};function Sm(t){"undefined"==typeof createImageBitmap&&console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported."),"undefined"==typeof fetch&&console.warn("THREE.ImageBitmapLoader: fetch() not supported."),hd.call(this,t),this.options={premultiplyAlpha:"none"}}Sm.prototype=Object.assign(Object.create(hd.prototype),{constructor:Sm,isImageBitmapLoader:!0,setOptions:function(t){return this.options=t,this},load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o={};o.credentials="anonymous"===this.crossOrigin?"same-origin":"include",o.headers=this.requestHeader,fetch(t,o).then(function(t){return t.blob()}).then(function(t){return createImageBitmap(t,Object.assign(i.options,{colorSpaceConversion:"none"}))}).then(function(n){ad.add(t,n),e&&e(n),i.manager.itemEnd(t)}).catch(function(e){r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}),i.manager.itemStart(t)}});class Tm{constructor(){this.type="ShapePath",this.color=new xi,this.subPaths=[],this.currentPath=null}moveTo(t,e){return this.currentPath=new Xd,this.subPaths.push(this.currentPath),this.currentPath.moveTo(t,e),this}lineTo(t,e){return this.currentPath.lineTo(t,e),this}quadraticCurveTo(t,e,n,r){return this.currentPath.quadraticCurveTo(t,e,n,r),this}bezierCurveTo(t,e,n,r,i,s){return this.currentPath.bezierCurveTo(t,e,n,r,i,s),this}splineThru(t){return this.currentPath.splineThru(t),this}toShapes(t,e){function n(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n],i=new Yd;i.curves=r.curves,e.push(i)}return e}function r(t,e){const n=e.length;let r=!1;for(let i=n-1,s=0;s<n;i=s++){let n=e[i],o=e[s],a=o.x-n.x,l=o.y-n.y;if(Math.abs(l)>Number.EPSILON){if(l<0&&(n=e[s],a=-a,o=e[i],l=-l),t.y<n.y||t.y>o.y)continue;if(t.y===n.y){if(t.x===n.x)return!0}else{const e=l*(t.x-n.x)-a*(t.y-n.y);if(0===e)return!0;if(e<0)continue;r=!r}}else{if(t.y!==n.y)continue;if(o.x<=t.x&&t.x<=n.x||n.x<=t.x&&t.x<=o.x)return!0}}return r}const i=dp.isClockWise,s=this.subPaths;if(0===s.length)return[];if(!0===e)return n(s);let o,a,l;const c=[];if(1===s.length)return a=s[0],(l=new Yd).curves=a.curves,c.push(l),c;let h=!i(s[0].getPoints());h=t?!h:h;const u=[],p=[];let d,m,f=[],g=0;p[g]=void 0,f[g]=[];for(let x=0,v=s.length;x<v;x++)o=i(d=(a=s[x]).getPoints()),(o=t?!o:o)?(!h&&p[g]&&g++,p[g]={s:new Yd,p:d},p[g].s.curves=a.curves,h&&g++,f[g]=[]):f[g].push({h:a,p:d[0]});if(!p[0])return n(s);if(p.length>1){let t=!1;const e=[];for(let n=0,r=p.length;n<r;n++)u[n]=[];for(let n=0,i=p.length;n<i;n++){const i=f[n];for(let s=0;s<i.length;s++){const o=i[s];let a=!0;for(let i=0;i<p.length;i++)r(o.p,p[i].p)&&(n!==i&&e.push({froms:n,tos:i,hole:s}),a?(a=!1,u[i].push(o)):t=!0);a&&u[n].push(o)}}e.length>0&&(t||(f=u))}for(let x=0,v=p.length;x<v;x++){l=p[x].s,c.push(l);for(let t=0,e=(m=f[x]).length;t<e;t++)l.holes.push(m[t].h)}return c}}exports.ShapePath=Tm;class Em{constructor(t){this.type="Font",this.data=t}generateShapes(t,e=100){const n=[],r=Am(t,e,this.data);for(let i=0,s=r.length;i<s;i++)Array.prototype.push.apply(n,r[i].toShapes());return n}}function Am(t,e,n){const r=Array.from(t),i=e/n.resolution,s=(n.boundingBox.yMax-n.boundingBox.yMin+n.underlineThickness)*i,o=[];let a=0,l=0;for(let c=0;c<r.length;c++){const t=r[c];if("\n"===t)a=0,l-=s;else{const e=Lm(t,i,a,l,n);a+=e.offsetX,o.push(e.path)}}return o}function Lm(t,e,n,r,i){const s=i.glyphs[t]||i.glyphs["?"];if(!s)return void console.error('THREE.Font: character "'+t+'" does not exists in font family '+i.familyName+".");const o=new Tm;let a,l,c,h,u,p,d,m;if(s.o){const t=s._cachedOutline||(s._cachedOutline=s.o.split(" "));for(let i=0,s=t.length;i<s;){switch(t[i++]){case"m":a=t[i++]*e+n,l=t[i++]*e+r,o.moveTo(a,l);break;case"l":a=t[i++]*e+n,l=t[i++]*e+r,o.lineTo(a,l);break;case"q":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,o.quadraticCurveTo(u,p,c,h);break;case"b":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,d=t[i++]*e+n,m=t[i++]*e+r,o.bezierCurveTo(u,p,d,m,c,h)}}}return{offsetX:s.ha*e,path:o}}exports.Font=Em,Em.prototype.isFont=!0;class Rm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(t){let n;try{n=JSON.parse(t)}catch(s){console.warn("THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead."),n=JSON.parse(t.substring(65,t.length-2))}const r=i.parse(n);e&&e(r)},n,r)}parse(t){return new Em(t)}}let Cm;exports.FontLoader=Rm;const Pm={getContext:function(){return void 0===Cm&&(Cm=new(window.AudioContext||window.webkitAudioContext)),Cm},setContext:function(t){Cm=t}};exports.AudioContext=Pm;class Dm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setResponseType("arraybuffer"),s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{const o=n.slice(0);Pm.getContext().decodeAudioData(o,function(t){e(t)})}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}}exports.AudioLoader=Dm;class Im extends mm{constructor(t,e,n=1){super(void 0,n);const r=(new xi).set(t),i=(new xi).set(e),s=new Yn(r.r,r.g,r.b),o=new Yn(i.r,i.g,i.b),a=Math.sqrt(Math.PI),l=a*Math.sqrt(.75);this.sh.coefficients[0].copy(s).add(o).multiplyScalar(a),this.sh.coefficients[1].copy(s).sub(o).multiplyScalar(l)}}exports.HemisphereLightProbe=Im,Im.prototype.isHemisphereLightProbe=!0;class Bm extends mm{constructor(t,e=1){super(void 0,e);const n=(new xi).set(t);this.sh.coefficients[0].set(n.r,n.g,n.b).multiplyScalar(2*Math.sqrt(Math.PI))}}exports.AmbientLightProbe=Bm,Bm.prototype.isAmbientLightProbe=!0;const Nm=new wr,Fm=new wr;class Om{constructor(){this.type="StereoCamera",this.aspect=1,this.eyeSep=.064,this.cameraL=new xs,this.cameraL.layers.enable(1),this.cameraL.matrixAutoUpdate=!1,this.cameraR=new xs,this.cameraR.layers.enable(2),this.cameraR.matrixAutoUpdate=!1,this._cache={focus:null,fov:null,aspect:null,near:null,far:null,zoom:null,eyeSep:null}}update(t){const e=this._cache;if(e.focus!==t.focus||e.fov!==t.fov||e.aspect!==t.aspect*this.aspect||e.near!==t.near||e.far!==t.far||e.zoom!==t.zoom||e.eyeSep!==this.eyeSep){e.focus=t.focus,e.fov=t.fov,e.aspect=t.aspect*this.aspect,e.near=t.near,e.far=t.far,e.zoom=t.zoom,e.eyeSep=this.eyeSep;const n=t.projectionMatrix.clone(),r=e.eyeSep/2,i=r*e.near/e.focus,s=e.near*Math.tan(Fn.DEG2RAD*e.fov*.5)/e.zoom;let o,a;Fm.elements[12]=-r,Nm.elements[12]=r,o=-s*e.aspect+i,a=s*e.aspect+i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraL.projectionMatrix.copy(n),o=-s*e.aspect-i,a=s*e.aspect-i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraR.projectionMatrix.copy(n)}this.cameraL.matrixWorld.copy(t.matrixWorld).multiply(Fm),this.cameraR.matrixWorld.copy(t.matrixWorld).multiply(Nm)}}exports.StereoCamera=Om;class zm{constructor(t){this.autoStart=void 0===t||t,this.startTime=0,this.oldTime=0,this.elapsedTime=0,this.running=!1}start(){this.startTime=Gm(),this.oldTime=this.startTime,this.elapsedTime=0,this.running=!0}stop(){this.getElapsedTime(),this.running=!1,this.autoStart=!1}getElapsedTime(){return this.getDelta(),this.elapsedTime}getDelta(){let t=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){const e=Gm();t=(e-this.oldTime)/1e3,this.oldTime=e,this.elapsedTime+=t}return t}}function Gm(){return("undefined"==typeof performance?Date:performance).now()}exports.Clock=zm;const Hm=new Yn,Um=new Xn,km=new Yn,Vm=new Yn;class Wm extends Xr{constructor(){super(),this.type="AudioListener",this.context=Pm.getContext(),this.gain=this.context.createGain(),this.gain.connect(this.context.destination),this.filter=null,this.timeDelta=0,this._clock=new zm}getInput(){return this.gain}removeFilter(){return null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null),this}getFilter(){return this.filter}setFilter(t){return null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):this.gain.disconnect(this.context.destination),this.filter=t,this.gain.connect(this.filter),this.filter.connect(this.context.destination),this}getMasterVolume(){return this.gain.gain.value}setMasterVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}updateMatrixWorld(t){super.updateMatrixWorld(t);const e=this.context.listener,n=this.up;if(this.timeDelta=this._clock.getDelta(),this.matrixWorld.decompose(Hm,Um,km),Vm.set(0,0,-1).applyQuaternion(Um),e.positionX){const t=this.context.currentTime+this.timeDelta;e.positionX.linearRampToValueAtTime(Hm.x,t),e.positionY.linearRampToValueAtTime(Hm.y,t),e.positionZ.linearRampToValueAtTime(Hm.z,t),e.forwardX.linearRampToValueAtTime(Vm.x,t),e.forwardY.linearRampToValueAtTime(Vm.y,t),e.forwardZ.linearRampToValueAtTime(Vm.z,t),e.upX.linearRampToValueAtTime(n.x,t),e.upY.linearRampToValueAtTime(n.y,t),e.upZ.linearRampToValueAtTime(n.z,t)}else e.setPosition(Hm.x,Hm.y,Hm.z),e.setOrientation(Vm.x,Vm.y,Vm.z,n.x,n.y,n.z)}}exports.AudioListener=Wm;class jm extends Xr{constructor(t){super(),this.type="Audio",this.listener=t,this.context=t.context,this.gain=this.context.createGain(),this.gain.connect(t.getInput()),this.autoplay=!1,this.buffer=null,this.detune=0,this.loop=!1,this.loopStart=0,this.loopEnd=0,this.offset=0,this.duration=void 0,this.playbackRate=1,this.isPlaying=!1,this.hasPlaybackControl=!0,this.source=null,this.sourceType="empty",this._startedAt=0,this._progress=0,this._connected=!1,this.filters=[]}getOutput(){return this.gain}setNodeSource(t){return this.hasPlaybackControl=!1,this.sourceType="audioNode",this.source=t,this.connect(),this}setMediaElementSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaNode",this.source=this.context.createMediaElementSource(t),this.connect(),this}setMediaStreamSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaStreamNode",this.source=this.context.createMediaStreamSource(t),this.connect(),this}setBuffer(t){return this.buffer=t,this.sourceType="buffer",this.autoplay&&this.play(),this}play(t=0){if(!0===this.isPlaying)return void console.warn("THREE.Audio: Audio is already playing.");if(!1===this.hasPlaybackControl)return void console.warn("THREE.Audio: this Audio has no playback control.");this._startedAt=this.context.currentTime+t;const e=this.context.createBufferSource();return e.buffer=this.buffer,e.loop=this.loop,e.loopStart=this.loopStart,e.loopEnd=this.loopEnd,e.onended=this.onEnded.bind(this),e.start(this._startedAt,this._progress+this.offset,this.duration),this.isPlaying=!0,this.source=e,this.setDetune(this.detune),this.setPlaybackRate(this.playbackRate),this.connect()}pause(){if(!1!==this.hasPlaybackControl)return!0===this.isPlaying&&(this._progress+=Math.max(this.context.currentTime-this._startedAt,0)*this.playbackRate,!0===this.loop&&(this._progress=this._progress%(this.duration||this.buffer.duration)),this.source.stop(),this.source.onended=null,this.isPlaying=!1),this;console.warn("THREE.Audio: this Audio has no playback control.")}stop(){if(!1!==this.hasPlaybackControl)return this._progress=0,this.source.stop(),this.source.onended=null,this.isPlaying=!1,this;console.warn("THREE.Audio: this Audio has no playback control.")}connect(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].connect(this.filters[t]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());return this._connected=!0,this}disconnect(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].disconnect(this.filters[t]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this._connected=!1,this}getFilters(){return this.filters}setFilters(t){return t||(t=[]),!0===this._connected?(this.disconnect(),this.filters=t.slice(),this.connect()):this.filters=t.slice(),this}setDetune(t){if(this.detune=t,void 0!==this.source.detune)return!0===this.isPlaying&&this.source.detune.setTargetAtTime(this.detune,this.context.currentTime,.01),this}getDetune(){return this.detune}getFilter(){return this.getFilters()[0]}setFilter(t){return this.setFilters(t?[t]:[])}setPlaybackRate(t){if(!1!==this.hasPlaybackControl)return this.playbackRate=t,!0===this.isPlaying&&this.source.playbackRate.setTargetAtTime(this.playbackRate,this.context.currentTime,.01),this;console.warn("THREE.Audio: this Audio has no playback control.")}getPlaybackRate(){return this.playbackRate}onEnded(){this.isPlaying=!1}getLoop(){return!1===this.hasPlaybackControl?(console.warn("THREE.Audio: this Audio has no playback control."),!1):this.loop}setLoop(t){if(!1!==this.hasPlaybackControl)return this.loop=t,!0===this.isPlaying&&(this.source.loop=this.loop),this;console.warn("THREE.Audio: this Audio has no playback control.")}setLoopStart(t){return this.loopStart=t,this}setLoopEnd(t){return this.loopEnd=t,this}getVolume(){return this.gain.gain.value}setVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}}exports.Audio=jm;const qm=new Yn,Xm=new Xn,Ym=new Yn,Zm=new Yn;class Jm extends jm{constructor(t){super(t),this.panner=this.context.createPanner(),this.panner.panningModel="HRTF",this.panner.connect(this.gain)}getOutput(){return this.panner}getRefDistance(){return this.panner.refDistance}setRefDistance(t){return this.panner.refDistance=t,this}getRolloffFactor(){return this.panner.rolloffFactor}setRolloffFactor(t){return this.panner.rolloffFactor=t,this}getDistanceModel(){return this.panner.distanceModel}setDistanceModel(t){return this.panner.distanceModel=t,this}getMaxDistance(){return this.panner.maxDistance}setMaxDistance(t){return this.panner.maxDistance=t,this}setDirectionalCone(t,e,n){return this.panner.coneInnerAngle=t,this.panner.coneOuterAngle=e,this.panner.coneOuterGain=n,this}updateMatrixWorld(t){if(super.updateMatrixWorld(t),!0===this.hasPlaybackControl&&!1===this.isPlaying)return;this.matrixWorld.decompose(qm,Xm,Ym),Zm.set(0,0,1).applyQuaternion(Xm);const e=this.panner;if(e.positionX){const t=this.context.currentTime+this.listener.timeDelta;e.positionX.linearRampToValueAtTime(qm.x,t),e.positionY.linearRampToValueAtTime(qm.y,t),e.positionZ.linearRampToValueAtTime(qm.z,t),e.orientationX.linearRampToValueAtTime(Zm.x,t),e.orientationY.linearRampToValueAtTime(Zm.y,t),e.orientationZ.linearRampToValueAtTime(Zm.z,t)}else e.setPosition(qm.x,qm.y,qm.z),e.setOrientation(Zm.x,Zm.y,Zm.z)}}exports.PositionalAudio=Jm;class Qm{constructor(t,e=2048){this.analyser=t.context.createAnalyser(),this.analyser.fftSize=e,this.data=new Uint8Array(this.analyser.frequencyBinCount),t.getOutput().connect(this.analyser)}getFrequencyData(){return this.analyser.getByteFrequencyData(this.data),this.data}getAverageFrequency(){let t=0;const e=this.getFrequencyData();for(let n=0;n<e.length;n++)t+=e[n];return t/e.length}}exports.AudioAnalyser=Qm;class Km{constructor(t,e,n){let r,i,s;switch(this.binding=t,this.valueSize=n,e){case"quaternion":r=this._slerp,i=this._slerpAdditive,s=this._setAdditiveIdentityQuaternion,this.buffer=new Float64Array(6*n),this._workIndex=5;break;case"string":case"bool":r=this._select,i=this._select,s=this._setAdditiveIdentityOther,this.buffer=new Array(5*n);break;default:r=this._lerp,i=this._lerpAdditive,s=this._setAdditiveIdentityNumeric,this.buffer=new Float64Array(5*n)}this._mixBufferRegion=r,this._mixBufferRegionAdditive=i,this._setIdentity=s,this._origIndex=3,this._addIndex=4,this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,this.useCount=0,this.referenceCount=0}accumulate(t,e){const n=this.buffer,r=this.valueSize,i=t*r+r;let s=this.cumulativeWeight;if(0===s){for(let t=0;t!==r;++t)n[i+t]=n[t];s=e}else{const t=e/(s+=e);this._mixBufferRegion(n,i,0,t,r)}this.cumulativeWeight=s}accumulateAdditive(t){const e=this.buffer,n=this.valueSize,r=n*this._addIndex;0===this.cumulativeWeightAdditive&&this._setIdentity(),this._mixBufferRegionAdditive(e,r,0,t,n),this.cumulativeWeightAdditive+=t}apply(t){const e=this.valueSize,n=this.buffer,r=t*e+e,i=this.cumulativeWeight,s=this.cumulativeWeightAdditive,o=this.binding;if(this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,i<1){const t=e*this._origIndex;this._mixBufferRegion(n,r,t,1-i,e)}s>0&&this._mixBufferRegionAdditive(n,r,this._addIndex*e,1,e);for(let a=e,l=e+e;a!==l;++a)if(n[a]!==n[a+e]){o.setValue(n,r);break}}saveOriginalState(){const t=this.binding,e=this.buffer,n=this.valueSize,r=n*this._origIndex;t.getValue(e,r);for(let i=n,s=r;i!==s;++i)e[i]=e[r+i%n];this._setIdentity(),this.cumulativeWeight=0,this.cumulativeWeightAdditive=0}restoreOriginalState(){const t=3*this.valueSize;this.binding.setValue(this.buffer,t)}_setAdditiveIdentityNumeric(){const t=this._addIndex*this.valueSize,e=t+this.valueSize;for(let n=t;n<e;n++)this.buffer[n]=0}_setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric(),this.buffer[this._addIndex*this.valueSize+3]=1}_setAdditiveIdentityOther(){const t=this._origIndex*this.valueSize,e=this._addIndex*this.valueSize;for(let n=0;n<this.valueSize;n++)this.buffer[e+n]=this.buffer[t+n]}_select(t,e,n,r,i){if(r>=.5)for(let s=0;s!==i;++s)t[e+s]=t[n+s]}_slerp(t,e,n,r){Xn.slerpFlat(t,e,t,e,t,n,r)}_slerpAdditive(t,e,n,r,i){const s=this._workIndex*i;Xn.multiplyQuaternionsFlat(t,s,t,e,t,n),Xn.slerpFlat(t,e,t,e,t,s,r)}_lerp(t,e,n,r,i){const s=1-r;for(let o=0;o!==i;++o){const i=e+o;t[i]=t[i]*s+t[n+o]*r}}_lerpAdditive(t,e,n,r,i){for(let s=0;s!==i;++s){const i=e+s;t[i]=t[i]+t[n+s]*r}}}exports.PropertyMixer=Km;const $m="\\[\\]\\.:\\/",tf=new RegExp("[\\[\\]\\.:\\/]","g"),ef="[^\\[\\]\\.:\\/]",nf="[^"+"\\[\\]\\.:\\/".replace("\\.","")+"]",rf=/((?:WC+[\/:])*)/.source.replace("WC",ef),sf=/(WCOD+)?/.source.replace("WCOD",nf),of=/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC",ef),af=/\.(WC+)(?:\[(.+)\])?/.source.replace("WC",ef),lf=new RegExp("^"+rf+sf+of+af+"$"),cf=["material","materials","bones"];function hf(t,e,n){const r=n||uf.parseTrackName(e);this._targetGroup=t,this._bindings=t.subscribe_(e,r)}function uf(t,e,n){this.path=e,this.parsedPath=n||uf.parseTrackName(e),this.node=uf.findNode(t,this.parsedPath.nodeName)||t,this.rootNode=t}Object.assign(hf.prototype,{getValue:function(t,e){this.bind();const n=this._targetGroup.nCachedObjects_,r=this._bindings[n];void 0!==r&&r.getValue(t,e)},setValue:function(t,e){const n=this._bindings;for(let r=this._targetGroup.nCachedObjects_,i=n.length;r!==i;++r)n[r].setValue(t,e)},bind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].bind()},unbind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].unbind()}}),Object.assign(uf,{Composite:hf,create:function(t,e,n){return t&&t.isAnimationObjectGroup?new uf.Composite(t,e,n):new uf(t,e,n)},sanitizeNodeName:function(t){return t.replace(/\s/g,"_").replace(tf,"")},parseTrackName:function(t){const e=lf.exec(t);if(!e)throw new Error("PropertyBinding: Cannot parse trackName: "+t);const n={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},r=n.nodeName&&n.nodeName.lastIndexOf(".");if(void 0!==r&&-1!==r){const t=n.nodeName.substring(r+1);-1!==cf.indexOf(t)&&(n.nodeName=n.nodeName.substring(0,r),n.objectName=t)}if(null===n.propertyName||0===n.propertyName.length)throw new Error("PropertyBinding: can not parse propertyName from trackName: "+t);return n},findNode:function(t,e){if(!e||""===e||"."===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){const n=t.skeleton.getBoneByName(e);if(void 0!==n)return n}if(t.children){const n=function(t){for(let r=0;r<t.length;r++){const i=t[r];if(i.name===e||i.uuid===e)return i;const s=n(i.children);if(s)return s}return null},r=n(t.children);if(r)return r}return null}}),Object.assign(uf.prototype,{_getValue_unavailable:function(){},_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(t,e){t[e]=this.node[this.propertyName]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)t[e++]=n[r]},function(t,e){t[e]=this.resolvedProperty[this.propertyIndex]},function(t,e){this.resolvedProperty.toArray(t,e)}],SetterByBindingTypeAndVersioning:[[function(t,e){this.targetObject[this.propertyName]=t[e]},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.needsUpdate=!0},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty[this.propertyIndex]=t[e]},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty.fromArray(t,e)},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}]],getValue:function(t,e){this.bind(),this.getValue(t,e)},setValue:function(t,e){this.bind(),this.setValue(t,e)},bind:function(){let t=this.node;const e=this.parsedPath,n=e.objectName,r=e.propertyName;let i=e.propertyIndex;if(t||(t=uf.findNode(this.rootNode,e.nodeName)||this.rootNode,this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.error("THREE.PropertyBinding: Trying to update node for track: "+this.path+" but it wasn't found.");if(n){let r=e.objectIndex;switch(n){case"materials":if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.materials)return void console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);t=t.material.materials;break;case"bones":if(!t.skeleton)return void console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);t=t.skeleton.bones;for(let e=0;e<t.length;e++)if(t[e].name===r){r=e;break}break;default:if(void 0===t[n])return void console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",this);t=t[n]}if(void 0!==r){if(void 0===t[r])return void console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,t);t=t[r]}}const s=t[r];if(void 0===s){const n=e.nodeName;return void console.error("THREE.PropertyBinding: Trying to update property for track: "+n+"."+r+" but it wasn't found.",t)}let o=this.Versioning.None;this.targetObject=t,void 0!==t.needsUpdate?o=this.Versioning.NeedsUpdate:void 0!==t.matrixWorldNeedsUpdate&&(o=this.Versioning.MatrixWorldNeedsUpdate);let a=this.BindingType.Direct;if(void 0!==i){if("morphTargetInfluences"===r){if(!t.geometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);if(!t.geometry.isBufferGeometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.",this);if(!t.geometry.morphAttributes)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);void 0!==t.morphTargetDictionary[i]&&(i=t.morphTargetDictionary[i])}a=this.BindingType.ArrayElement,this.resolvedProperty=s,this.propertyIndex=i}else void 0!==s.fromArray&&void 0!==s.toArray?(a=this.BindingType.HasFromToArray,this.resolvedProperty=s):Array.isArray(s)?(a=this.BindingType.EntireArray,this.resolvedProperty=s):this.propertyName=r;this.getValue=this.GetterByBindingType[a],this.setValue=this.SetterByBindingTypeAndVersioning[a][o]},unbind:function(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}),Object.assign(uf.prototype,{_getValue_unbound:uf.prototype.getValue,_setValue_unbound:uf.prototype.setValue});class pf{constructor(){this.uuid=Fn.generateUUID(),this._objects=Array.prototype.slice.call(arguments),this.nCachedObjects_=0;const t={};this._indicesByUUID=t;for(let n=0,r=arguments.length;n!==r;++n)t[arguments[n].uuid]=n;this._paths=[],this._parsedPaths=[],this._bindings=[],this._bindingsIndicesByPath={};const e=this;this.stats={objects:{get total(){return e._objects.length},get inUse(){return this.total-e.nCachedObjects_}},get bindingsPerObject(){return e._bindings.length}}}add(){const t=this._objects,e=this._indicesByUUID,n=this._paths,r=this._parsedPaths,i=this._bindings,s=i.length;let o=void 0,a=t.length,l=this.nCachedObjects_;for(let c=0,h=arguments.length;c!==h;++c){const h=arguments[c],u=h.uuid;let p=e[u];if(void 0===p){p=a++,e[u]=p,t.push(h);for(let t=0,e=s;t!==e;++t)i[t].push(new uf(h,n[t],r[t]))}else if(p<l){o=t[p];const a=--l,c=t[a];e[c.uuid]=p,t[p]=c,e[u]=a,t[a]=h;for(let t=0,e=s;t!==e;++t){const e=i[t],s=e[a];let o=e[p];e[p]=s,void 0===o&&(o=new uf(h,n[t],r[t])),e[a]=o}}else t[p]!==o&&console.error("THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.")}this.nCachedObjects_=l}remove(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_;for(let s=0,o=arguments.length;s!==o;++s){const o=arguments[s],a=o.uuid,l=e[a];if(void 0!==l&&l>=i){const s=i++,c=t[s];e[c.uuid]=l,t[l]=c,e[a]=s,t[s]=o;for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[s],i=e[l];e[l]=r,e[s]=i}}}this.nCachedObjects_=i}uncache(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_,s=t.length;for(let o=0,a=arguments.length;o!==a;++o){const a=arguments[o].uuid,l=e[a];if(void 0!==l)if(delete e[a],l<i){const o=--i,a=t[o],c=--s,h=t[c];e[a.uuid]=l,t[l]=a,e[h.uuid]=o,t[o]=h,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[o],i=e[c];e[l]=r,e[o]=i,e.pop()}}else{const i=--s,o=t[i];i>0&&(e[o.uuid]=l),t[l]=o,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t];e[l]=e[i],e.pop()}}}this.nCachedObjects_=i}subscribe_(t,e){const n=this._bindingsIndicesByPath;let r=n[t];const i=this._bindings;if(void 0!==r)return i[r];const s=this._paths,o=this._parsedPaths,a=this._objects,l=a.length,c=this.nCachedObjects_,h=new Array(l);r=i.length,n[t]=r,s.push(t),o.push(e),i.push(h);for(let u=c,p=a.length;u!==p;++u){const n=a[u];h[u]=new uf(n,t,e)}return h}unsubscribe_(t){const e=this._bindingsIndicesByPath,n=e[t];if(void 0!==n){const r=this._paths,i=this._parsedPaths,s=this._bindings,o=s.length-1,a=s[o];e[t[o]]=n,s[n]=a,s.pop(),i[n]=i[o],i.pop(),r[n]=r[o],r.pop()}}}exports.AnimationObjectGroup=pf,pf.prototype.isAnimationObjectGroup=!0;class df{constructor(t,e,n=null,r=e.blendMode){this._mixer=t,this._clip=e,this._localRoot=n,this.blendMode=r;const i=e.tracks,s=i.length,o=new Array(s),a={endingStart:Ge,endingEnd:Ge};for(let l=0;l!==s;++l){const t=i[l].createInterpolant(null);o[l]=t,t.settings=a}this._interpolantSettings=a,this._interpolants=o,this._propertyBindings=new Array(s),this._cacheIndex=null,this._byClipCacheIndex=null,this._timeScaleInterpolant=null,this._weightInterpolant=null,this.loop=Be,this._loopCount=-1,this._startTime=null,this.time=0,this.timeScale=1,this._effectiveTimeScale=1,this.weight=1,this._effectiveWeight=1,this.repetitions=1/0,this.paused=!1,this.enabled=!0,this.clampWhenFinished=!1,this.zeroSlopeAtStart=!0,this.zeroSlopeAtEnd=!0}play(){return this._mixer._activateAction(this),this}stop(){return this._mixer._deactivateAction(this),this.reset()}reset(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()}isRunning(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)}isScheduled(){return this._mixer._isActiveAction(this)}startAt(t){return this._startTime=t,this}setLoop(t,e){return this.loop=t,this.repetitions=e,this}setEffectiveWeight(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()}getEffectiveWeight(){return this._effectiveWeight}fadeIn(t){return this._scheduleFading(t,0,1)}fadeOut(t){return this._scheduleFading(t,1,0)}crossFadeFrom(t,e,n){if(t.fadeOut(e),this.fadeIn(e),n){const n=this._clip.duration,r=t._clip.duration,i=r/n,s=n/r;t.warp(1,i,e),this.warp(s,1,e)}return this}crossFadeTo(t,e,n){return t.crossFadeFrom(this,e,n)}stopFading(){const t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}setEffectiveTimeScale(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()}getEffectiveTimeScale(){return this._effectiveTimeScale}setDuration(t){return this.timeScale=this._clip.duration/t,this.stopWarping()}syncWith(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()}halt(t){return this.warp(this._effectiveTimeScale,0,t)}warp(t,e,n){const r=this._mixer,i=r.time,s=this.timeScale;let o=this._timeScaleInterpolant;null===o&&(o=r._lendControlInterpolant(),this._timeScaleInterpolant=o);const a=o.parameterPositions,l=o.sampleValues;return a[0]=i,a[1]=i+n,l[0]=t/s,l[1]=e/s,this}stopWarping(){const t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}getMixer(){return this._mixer}getClip(){return this._clip}getRoot(){return this._localRoot||this._mixer._root}_update(t,e,n,r){if(!this.enabled)return void this._updateWeight(t);const i=this._startTime;if(null!==i){const r=(t-i)*n;if(r<0||0===n)return;this._startTime=null,e=n*r}e*=this._updateTimeScale(t);const s=this._updateTime(e),o=this._updateWeight(t);if(o>0){const t=this._interpolants,e=this._propertyBindings;switch(this.blendMode){case Ve:for(let n=0,r=t.length;n!==r;++n)t[n].evaluate(s),e[n].accumulateAdditive(o);break;case ke:default:for(let n=0,i=t.length;n!==i;++n)t[n].evaluate(s),e[n].accumulate(r,o)}}}_updateWeight(t){let e=0;if(this.enabled){e=this.weight;const n=this._weightInterpolant;if(null!==n){const r=n.evaluate(t)[0];e*=r,t>n.parameterPositions[1]&&(this.stopFading(),0===r&&(this.enabled=!1))}}return this._effectiveWeight=e,e}_updateTimeScale(t){let e=0;if(!this.paused){e=this.timeScale;const n=this._timeScaleInterpolant;if(null!==n){e*=n.evaluate(t)[0],t>n.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e}_updateTime(t){const e=this._clip.duration,n=this.loop;let r=this.time+t,i=this._loopCount;const s=n===Ne;if(0===t)return-1===i?r:s&&1==(1&i)?e-r:r;if(n===Ie){-1===i&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(r>=e)r=e;else{if(!(r<0)){this.time=r;break t}r=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t<0?-1:1})}}else{if(-1===i&&(t>=0?(i=0,this._setEndings(!0,0===this.repetitions,s)):this._setEndings(0===this.repetitions,!0,s)),r>=e||r<0){const n=Math.floor(r/e);r-=e*n,i+=Math.abs(n);const o=this.repetitions-i;if(o<=0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,r=t>0?e:0,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t>0?1:-1});else{if(1===o){const e=t<0;this._setEndings(e,!e,s)}else this._setEndings(!1,!1,s);this._loopCount=i,this.time=r,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:n})}}else this.time=r;if(s&&1==(1&i))return e-r}return r}_setEndings(t,e,n){const r=this._interpolantSettings;n?(r.endingStart=He,r.endingEnd=He):(r.endingStart=t?this.zeroSlopeAtStart?He:Ge:Ue,r.endingEnd=e?this.zeroSlopeAtEnd?He:Ge:Ue)}_scheduleFading(t,e,n){const r=this._mixer,i=r.time;let s=this._weightInterpolant;null===s&&(s=r._lendControlInterpolant(),this._weightInterpolant=s);const o=s.parameterPositions,a=s.sampleValues;return o[0]=i,a[0]=e,o[1]=i+t,a[1]=n,this}}class mf extends In{constructor(t){super(),this._root=t,this._initMemoryManager(),this._accuIndex=0,this.time=0,this.timeScale=1}_bindAction(t,e){const n=t._localRoot||this._root,r=t._clip.tracks,i=r.length,s=t._propertyBindings,o=t._interpolants,a=n.uuid,l=this._bindingsByRootAndName;let c=l[a];void 0===c&&(c={},l[a]=c);for(let h=0;h!==i;++h){const t=r[h],i=t.name;let l=c[i];if(void 0!==l)s[h]=l;else{if(void 0!==(l=s[h])){null===l._cacheIndex&&(++l.referenceCount,this._addInactiveBinding(l,a,i));continue}const r=e&&e._propertyBindings[h].binding.parsedPath;++(l=new Km(uf.create(n,i,r),t.ValueTypeName,t.getValueSize())).referenceCount,this._addInactiveBinding(l,a,i),s[h]=l}o[h].resultBuffer=l.buffer}}_activateAction(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){const e=(t._localRoot||this._root).uuid,n=t._clip.uuid,r=this._actionsByClip[n];this._bindAction(t,r&&r.knownActions[0]),this._addInactiveAction(t,n,e)}const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==n.useCount++&&(this._lendBinding(n),n.saveOriginalState())}this._lendAction(t)}}_deactivateAction(t){if(this._isActiveAction(t)){const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==--n.useCount&&(n.restoreOriginalState(),this._takeBackBinding(n))}this._takeBackAction(t)}}_initMemoryManager(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;const t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}}_isActiveAction(t){const e=t._cacheIndex;return null!==e&&e<this._nActiveActions}_addInactiveAction(t,e,n){const r=this._actions,i=this._actionsByClip;let s=i[e];if(void 0===s)s={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,i[e]=s;else{const e=s.knownActions;t._byClipCacheIndex=e.length,e.push(t)}t._cacheIndex=r.length,r.push(t),s.actionByRoot[n]=t}_removeInactiveAction(t){const e=this._actions,n=e[e.length-1],r=t._cacheIndex;n._cacheIndex=r,e[r]=n,e.pop(),t._cacheIndex=null;const i=t._clip.uuid,s=this._actionsByClip,o=s[i],a=o.knownActions,l=a[a.length-1],c=t._byClipCacheIndex;l._byClipCacheIndex=c,a[c]=l,a.pop(),t._byClipCacheIndex=null,delete o.actionByRoot[(t._localRoot||this._root).uuid],0===a.length&&delete s[i],this._removeInactiveBindingsForAction(t)}_removeInactiveBindingsForAction(t){const e=t._propertyBindings;for(let n=0,r=e.length;n!==r;++n){const t=e[n];0==--t.referenceCount&&this._removeInactiveBinding(t)}}_lendAction(t){const e=this._actions,n=t._cacheIndex,r=this._nActiveActions++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackAction(t){const e=this._actions,n=t._cacheIndex,r=--this._nActiveActions,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_addInactiveBinding(t,e,n){const r=this._bindingsByRootAndName,i=this._bindings;let s=r[e];void 0===s&&(s={},r[e]=s),s[n]=t,t._cacheIndex=i.length,i.push(t)}_removeInactiveBinding(t){const e=this._bindings,n=t.binding,r=n.rootNode.uuid,i=n.path,s=this._bindingsByRootAndName,o=s[r],a=e[e.length-1],l=t._cacheIndex;a._cacheIndex=l,e[l]=a,e.pop(),delete o[i],0===Object.keys(o).length&&delete s[r]}_lendBinding(t){const e=this._bindings,n=t._cacheIndex,r=this._nActiveBindings++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackBinding(t){const e=this._bindings,n=t._cacheIndex,r=--this._nActiveBindings,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_lendControlInterpolant(){const t=this._controlInterpolants,e=this._nActiveControlInterpolants++;let n=t[e];return void 0===n&&((n=new Yp(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer)).__cacheIndex=e,t[e]=n),n}_takeBackControlInterpolant(t){const e=this._controlInterpolants,n=t.__cacheIndex,r=--this._nActiveControlInterpolants,i=e[r];t.__cacheIndex=r,e[r]=t,i.__cacheIndex=n,e[n]=i}clipAction(t,e,n){const r=e||this._root,i=r.uuid;let s="string"==typeof t?id.findByName(r,t):t;const o=null!==s?s.uuid:t,a=this._actionsByClip[o];let l=null;if(void 0===n&&(n=null!==s?s.blendMode:ke),void 0!==a){const t=a.actionByRoot[i];if(void 0!==t&&t.blendMode===n)return t;l=a.knownActions[0],null===s&&(s=l._clip)}if(null===s)return null;const c=new df(this,s,e,n);return this._bindAction(c,l),this._addInactiveAction(c,o,i),c}existingAction(t,e){const n=e||this._root,r=n.uuid,i="string"==typeof t?id.findByName(n,t):t,s=i?i.uuid:t,o=this._actionsByClip[s];return void 0!==o&&o.actionByRoot[r]||null}stopAllAction(){const t=this._actions;for(let e=this._nActiveActions-1;e>=0;--e)t[e].stop();return this}update(t){t*=this.timeScale;const e=this._actions,n=this._nActiveActions,r=this.time+=t,i=Math.sign(t),s=this._accuIndex^=1;for(let l=0;l!==n;++l){e[l]._update(r,t,i,s)}const o=this._bindings,a=this._nActiveBindings;for(let l=0;l!==a;++l)o[l].apply(s);return this}setTime(t){this.time=0;for(let e=0;e<this._actions.length;e++)this._actions[e].time=0;return this.update(t)}getRoot(){return this._root}uncacheClip(t){const e=this._actions,n=t.uuid,r=this._actionsByClip,i=r[n];if(void 0!==i){const t=i.knownActions;for(let n=0,r=t.length;n!==r;++n){const r=t[n];this._deactivateAction(r);const i=r._cacheIndex,s=e[e.length-1];r._cacheIndex=null,r._byClipCacheIndex=null,s._cacheIndex=i,e[i]=s,e.pop(),this._removeInactiveBindingsForAction(r)}delete r[n]}}uncacheRoot(t){const e=t.uuid,n=this._actionsByClip;for(const i in n){const t=n[i].actionByRoot[e];void 0!==t&&(this._deactivateAction(t),this._removeInactiveAction(t))}const r=this._bindingsByRootAndName[e];if(void 0!==r)for(const i in r){const t=r[i];t.restoreOriginalState(),this._removeInactiveBinding(t)}}uncacheAction(t,e){const n=this.existingAction(t,e);null!==n&&(this._deactivateAction(n),this._removeInactiveAction(n))}}exports.AnimationMixer=mf,mf.prototype._controlInterpolantsResultBuffer=new Float32Array(1);class ff{constructor(t){"string"==typeof t&&(console.warn("THREE.Uniform: Type parameter is no longer needed."),t=arguments[1]),this.value=t}clone(){return new ff(void 0===this.value.clone?this.value:this.value.clone())}}function gf(t,e,n){_h.call(this,t,e),this.meshPerAttribute=n||1}function xf(t,e,n,r,i){this.buffer=t,this.type=e,this.itemSize=n,this.elementSize=r,this.count=i,this.version=0}function vf(t,e,n=0,r=1/0){this.ray=new br(t,e),this.near=n,this.far=r,this.camera=null,this.layers=new Ir,this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}},Object.defineProperties(this.params,{PointCloud:{get:function(){return console.warn("THREE.Raycaster: params.PointCloud has been renamed to params.Points."),this.Points}}})}function yf(t,e){return t.distance-e.distance}function _f(t,e,n,r){if(t.layers.test(e.layers)&&t.raycast(e,n),!0===r){const r=t.children;for(let t=0,i=r.length;t<i;t++)_f(r[t],e,n,!0)}}exports.Uniform=ff,gf.prototype=Object.assign(Object.create(_h.prototype),{constructor:gf,isInstancedInterleavedBuffer:!0,copy:function(t){return _h.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},clone:function(t){const e=_h.prototype.clone.call(this,t);return e.meshPerAttribute=this.meshPerAttribute,e},toJSON:function(t){const e=_h.prototype.toJSON.call(this,t);return e.isInstancedInterleavedBuffer=!0,e.meshPerAttribute=this.meshPerAttribute,e}}),Object.defineProperty(xf.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(xf.prototype,{isGLBufferAttribute:!0,setBuffer:function(t){return this.buffer=t,this},setType:function(t,e){return this.type=t,this.elementSize=e,this},setItemSize:function(t){return this.itemSize=t,this},setCount:function(t){return this.count=t,this}}),Object.assign(vf.prototype,{set:function(t,e){this.ray.set(t,e)},setFromCamera:function(t,e){e&&e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize(),this.camera=e):e&&e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld),this.camera=e):console.error("THREE.Raycaster: Unsupported camera type: "+e.type)},intersectObject:function(t,e=!1,n=[]){return _f(t,this,n,e),n.sort(yf),n},intersectObjects:function(t,e=!1,n=[]){for(let r=0,i=t.length;r<i;r++)_f(t[r],this,n,e);return n.sort(yf),n}});class bf{constructor(t=1,e=0,n=0){return this.radius=t,this.phi=e,this.theta=n,this}set(t,e,n){return this.radius=t,this.phi=e,this.theta=n,this}copy(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this}makeSafe(){return this.phi=Math.max(1e-6,Math.min(Math.PI-1e-6,this.phi)),this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+e*e+n*n),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t,n),this.phi=Math.acos(Fn.clamp(e/this.radius,-1,1))),this}clone(){return(new this.constructor).copy(this)}}exports.Spherical=bf;class wf{constructor(t=1,e=0,n=0){return this.radius=t,this.theta=e,this.y=n,this}set(t,e,n){return this.radius=t,this.theta=e,this.y=n,this}copy(t){return this.radius=t.radius,this.theta=t.theta,this.y=t.y,this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+n*n),this.theta=Math.atan2(t,n),this.y=e,this}clone(){return(new this.constructor).copy(this)}}exports.Cylindrical=wf;const Mf=new On;class Sf{constructor(t=new On(1/0,1/0),e=new On(-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=Mf.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=1/0,this.max.x=this.max.y=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y}getCenter(t){return void 0===t&&(console.warn("THREE.Box2: .getCenter() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box2: .getSize() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box2: .getParameter() target is now required"),e=new On),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y)}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box2: .clampPoint() target is now required"),e=new On),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return Mf.copy(t).clamp(this.min,this.max).sub(t).length()}intersect(t){return this.min.max(t.min),this.max.min(t.max),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box2=Sf,Sf.prototype.isBox2=!0;const Tf=new Yn,Ef=new Yn;class Af{constructor(t=new Yn,e=new Yn){this.start=t,this.end=e}set(t,e){return this.start.copy(t),this.end.copy(e),this}copy(t){return this.start.copy(t.start),this.end.copy(t.end),this}getCenter(t){return void 0===t&&(console.warn("THREE.Line3: .getCenter() target is now required"),t=new Yn),t.addVectors(this.start,this.end).multiplyScalar(.5)}delta(t){return void 0===t&&(console.warn("THREE.Line3: .delta() target is now required"),t=new Yn),t.subVectors(this.end,this.start)}distanceSq(){return this.start.distanceToSquared(this.end)}distance(){return this.start.distanceTo(this.end)}at(t,e){return void 0===e&&(console.warn("THREE.Line3: .at() target is now required"),e=new Yn),this.delta(e).multiplyScalar(t).add(this.start)}closestPointToPointParameter(t,e){Tf.subVectors(t,this.start),Ef.subVectors(this.end,this.start);const n=Ef.dot(Ef);let r=Ef.dot(Tf)/n;return e&&(r=Fn.clamp(r,0,1)),r}closestPointToPoint(t,e,n){const r=this.closestPointToPointParameter(t,e);return void 0===n&&(console.warn("THREE.Line3: .closestPointToPoint() target is now required"),n=new Yn),this.delta(n).multiplyScalar(r).add(this.start)}applyMatrix4(t){return this.start.applyMatrix4(t),this.end.applyMatrix4(t),this}equals(t){return t.start.equals(this.start)&&t.end.equals(this.end)}clone(){return(new this.constructor).copy(this)}}function Lf(t){Xr.call(this),this.material=t,this.render=function(){},this.hasPositions=!1,this.hasNormals=!1,this.hasColors=!1,this.hasUvs=!1,this.positionArray=null,this.normalArray=null,this.colorArray=null,this.uvArray=null,this.count=0}exports.Line3=Af,Lf.prototype=Object.create(Xr.prototype),Lf.prototype.constructor=Lf,Lf.prototype.isImmediateRenderObject=!0;const Rf=new Yn;class Cf extends Xr{constructor(t,e){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=e;const n=new ki,r=[0,0,0,0,0,1,0,0,0,1,0,1,0,0,0,-1,0,1,0,0,0,0,1,1,0,0,0,0,-1,1];for(let s=0,o=1,a=32;s<a;s++,o++){const t=s/a*Math.PI*2,e=o/a*Math.PI*2;r.push(Math.cos(t),Math.sin(t),1,Math.cos(e),Math.sin(e),1)}n.setAttribute("position",new Ci(r,3));const i=new ru({fog:!1,toneMapped:!1});this.cone=new pu(n,i),this.add(this.cone),this.update()}dispose(){this.cone.geometry.dispose(),this.cone.material.dispose()}update(){this.light.updateMatrixWorld();const t=this.light.distance?this.light.distance:1e3,e=t*Math.tan(this.light.angle);this.cone.scale.set(e,e,t),Rf.setFromMatrixPosition(this.light.target.matrixWorld),this.cone.lookAt(Rf),void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}exports.SpotLightHelper=Cf;const Pf=new Yn,Df=new wr,If=new wr;class Bf extends pu{constructor(t){const e=Nf(t),n=new ki,r=[],i=[],s=new xi(0,0,1),o=new xi(0,1,0);for(let a=0;a<e.length;a++){const t=e[a];t.parent&&t.parent.isBone&&(r.push(0,0,0),r.push(0,0,0),i.push(s.r,s.g,s.b),i.push(o.r,o.g,o.b))}n.setAttribute("position",new Ci(r,3)),n.setAttribute("color",new Ci(i,3)),super(n,new ru({vertexColors:!0,depthTest:!1,depthWrite:!1,toneMapped:!1,transparent:!0})),this.type="SkeletonHelper",this.isSkeletonHelper=!0,this.root=t,this.bones=e,this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1}updateMatrixWorld(t){const e=this.bones,n=this.geometry,r=n.getAttribute("position");If.copy(this.root.matrixWorld).invert();for(let i=0,s=0;i<e.length;i++){const t=e[i];t.parent&&t.parent.isBone&&(Df.multiplyMatrices(If,t.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s,Pf.x,Pf.y,Pf.z),Df.multiplyMatrices(If,t.parent.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s+1,Pf.x,Pf.y,Pf.z),s+=2)}n.getAttribute("position").needsUpdate=!0,super.updateMatrixWorld(t)}}function Nf(t){const e=[];t&&t.isBone&&e.push(t);for(let n=0;n<t.children.length;n++)e.push.apply(e,Nf(t.children[n]));return e}exports.SkeletonHelper=Bf;class Ff extends os{constructor(t,e,n){super(new Ep(e,4,2),new vi({wireframe:!0,fog:!1,toneMapped:!1})),this.light=t,this.light.updateMatrixWorld(),this.color=n,this.type="PointLightHelper",this.matrix=this.light.matrixWorld,this.matrixAutoUpdate=!1,this.update()}dispose(){this.geometry.dispose(),this.material.dispose()}update(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)}}exports.PointLightHelper=Ff;const Of=new Yn,zf=new xi,Gf=new xi;class Hf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n;const r=new bp(e);r.rotateY(.5*Math.PI),this.material=new vi({wireframe:!0,fog:!1,toneMapped:!1}),void 0===this.color&&(this.material.vertexColors=!0);const i=r.getAttribute("position"),s=new Float32Array(3*i.count);r.setAttribute("color",new bi(s,3)),this.add(new os(r,this.material)),this.update()}dispose(){this.children[0].geometry.dispose(),this.children[0].material.dispose()}update(){const t=this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{const e=t.geometry.getAttribute("color");zf.copy(this.light.color),Gf.copy(this.light.groundColor);for(let t=0,n=e.count;t<n;t++){const r=t<n/2?zf:Gf;e.setXYZ(t,r.r,r.g,r.b)}e.needsUpdate=!0}t.lookAt(Of.setFromMatrixPosition(this.light.matrixWorld).negate())}}exports.HemisphereLightHelper=Hf;class Uf extends pu{constructor(t=10,e=10,n=4473924,r=8947848){n=new xi(n),r=new xi(r);const i=e/2,s=t/e,o=t/2,a=[],l=[];for(let h=0,u=0,p=-o;h<=e;h++,p+=s){a.push(-o,0,p,o,0,p),a.push(p,0,-o,p,0,o);const t=h===i?n:r;t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3}const c=new ki;c.setAttribute("position",new Ci(a,3)),c.setAttribute("color",new Ci(l,3)),super(c,new ru({vertexColors:!0,toneMapped:!1})),this.type="GridHelper"}}exports.GridHelper=Uf;class kf extends pu{constructor(t=10,e=16,n=8,r=64,i=4473924,s=8947848){i=new xi(i),s=new xi(s);const o=[],a=[];for(let c=0;c<=e;c++){const n=c/e*(2*Math.PI),r=Math.sin(n)*t,l=Math.cos(n)*t;o.push(0,0,0),o.push(r,0,l);const h=1&c?i:s;a.push(h.r,h.g,h.b),a.push(h.r,h.g,h.b)}for(let c=0;c<=n;c++){const e=1&c?i:s,l=t-t/n*c;for(let t=0;t<r;t++){let n=t/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l;o.push(i,0,s),a.push(e.r,e.g,e.b),n=(t+1)/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l,o.push(i,0,s),a.push(e.r,e.g,e.b)}}const l=new ki;l.setAttribute("position",new Ci(o,3)),l.setAttribute("color",new Ci(a,3)),super(l,new ru({vertexColors:!0,toneMapped:!1})),this.type="PolarGridHelper"}}exports.PolarGridHelper=kf;const Vf=new Yn,Wf=new Yn,jf=new Yn;class qf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n,void 0===e&&(e=1);let r=new ki;r.setAttribute("position",new Ci([-e,e,0,e,e,0,e,-e,0,-e,-e,0,-e,e,0],3));const i=new ru({fog:!1,toneMapped:!1});this.lightPlane=new cu(r,i),this.add(this.lightPlane),(r=new ki).setAttribute("position",new Ci([0,0,0,0,0,1],3)),this.targetLine=new cu(r,i),this.add(this.targetLine),this.update()}dispose(){this.lightPlane.geometry.dispose(),this.lightPlane.material.dispose(),this.targetLine.geometry.dispose(),this.targetLine.material.dispose()}update(){Vf.setFromMatrixPosition(this.light.matrixWorld),Wf.setFromMatrixPosition(this.light.target.matrixWorld),jf.subVectors(Wf,Vf),this.lightPlane.lookAt(Wf),void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color)),this.targetLine.lookAt(Wf),this.targetLine.scale.z=jf.length()}}exports.DirectionalLightHelper=qf;const Xf=new Yn,Yf=new gs;class Zf extends pu{constructor(t){const e=new ki,n=new ru({color:16777215,vertexColors:!0,toneMapped:!1}),r=[],i=[],s={},o=new xi(16755200),a=new xi(16711680),l=new xi(43775),c=new xi(16777215),h=new xi(3355443);function u(t,e,n){p(t,n),p(e,n)}function p(t,e){r.push(0,0,0),i.push(e.r,e.g,e.b),void 0===s[t]&&(s[t]=[]),s[t].push(r.length/3-1)}u("n1","n2",o),u("n2","n4",o),u("n4","n3",o),u("n3","n1",o),u("f1","f2",o),u("f2","f4",o),u("f4","f3",o),u("f3","f1",o),u("n1","f1",o),u("n2","f2",o),u("n3","f3",o),u("n4","f4",o),u("p","n1",a),u("p","n2",a),u("p","n3",a),u("p","n4",a),u("u1","u2",l),u("u2","u3",l),u("u3","u1",l),u("c","t",c),u("p","c",h),u("cn1","cn2",h),u("cn3","cn4",h),u("cf1","cf2",h),u("cf3","cf4",h),e.setAttribute("position",new Ci(r,3)),e.setAttribute("color",new Ci(i,3)),super(e,n),this.type="CameraHelper",this.camera=t,this.camera.updateProjectionMatrix&&this.camera.updateProjectionMatrix(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.pointMap=s,this.update()}update(){const t=this.geometry,e=this.pointMap;Yf.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse),Jf("c",e,t,Yf,0,0,-1),Jf("t",e,t,Yf,0,0,1),Jf("n1",e,t,Yf,-1,-1,-1),Jf("n2",e,t,Yf,1,-1,-1),Jf("n3",e,t,Yf,-1,1,-1),Jf("n4",e,t,Yf,1,1,-1),Jf("f1",e,t,Yf,-1,-1,1),Jf("f2",e,t,Yf,1,-1,1),Jf("f3",e,t,Yf,-1,1,1),Jf("f4",e,t,Yf,1,1,1),Jf("u1",e,t,Yf,.7,1.1,-1),Jf("u2",e,t,Yf,-.7,1.1,-1),Jf("u3",e,t,Yf,0,2,-1),Jf("cf1",e,t,Yf,-1,0,1),Jf("cf2",e,t,Yf,1,0,1),Jf("cf3",e,t,Yf,0,-1,1),Jf("cf4",e,t,Yf,0,1,1),Jf("cn1",e,t,Yf,-1,0,-1),Jf("cn2",e,t,Yf,1,0,-1),Jf("cn3",e,t,Yf,0,-1,-1),Jf("cn4",e,t,Yf,0,1,-1),t.getAttribute("position").needsUpdate=!0}}function Jf(t,e,n,r,i,s,o){Xf.set(i,s,o).unproject(r);const a=e[t];if(void 0!==a){const t=n.getAttribute("position");for(let e=0,n=a.length;e<n;e++)t.setXYZ(a[e],Xf.x,Xf.y,Xf.z)}}exports.CameraHelper=Zf;const Qf=new Qn;class Kf extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new Float32Array(24),i=new ki;i.setIndex(new bi(n,1)),i.setAttribute("position",new bi(r,3)),super(i,new ru({color:e,toneMapped:!1})),this.object=t,this.type="BoxHelper",this.matrixAutoUpdate=!1,this.update()}update(t){if(void 0!==t&&console.warn("THREE.BoxHelper: .update() has no longer arguments."),void 0!==this.object&&Qf.setFromObject(this.object),Qf.isEmpty())return;const e=Qf.min,n=Qf.max,r=this.geometry.attributes.position,i=r.array;i[0]=n.x,i[1]=n.y,i[2]=n.z,i[3]=e.x,i[4]=n.y,i[5]=n.z,i[6]=e.x,i[7]=e.y,i[8]=n.z,i[9]=n.x,i[10]=e.y,i[11]=n.z,i[12]=n.x,i[13]=n.y,i[14]=e.z,i[15]=e.x,i[16]=n.y,i[17]=e.z,i[18]=e.x,i[19]=e.y,i[20]=e.z,i[21]=n.x,i[22]=e.y,i[23]=e.z,r.needsUpdate=!0,this.geometry.computeBoundingSphere()}setFromObject(t){return this.object=t,this.update(),this}copy(t){return pu.prototype.copy.call(this,t),this.object=t.object,this}}exports.BoxHelper=Kf;class $f extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new ki;r.setIndex(new bi(n,1)),r.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,-1,-1,1,-1,-1,-1,-1,1,-1,-1],3)),super(r,new ru({color:e,toneMapped:!1})),this.box=t,this.type="Box3Helper",this.geometry.computeBoundingSphere()}updateMatrixWorld(t){const e=this.box;e.isEmpty()||(e.getCenter(this.position),e.getSize(this.scale),this.scale.multiplyScalar(.5),super.updateMatrixWorld(t))}}exports.Box3Helper=$f;class tg extends cu{constructor(t,e=1,n=16776960){const r=n,i=new ki;i.setAttribute("position",new Ci([1,-1,1,-1,1,1,-1,-1,1,1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,1,0,0,1,0,0,0],3)),i.computeBoundingSphere(),super(i,new ru({color:r,toneMapped:!1})),this.type="PlaneHelper",this.plane=t,this.size=e;const s=new ki;s.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,1,1,-1,-1,1,1,-1,1],3)),s.computeBoundingSphere(),this.add(new os(s,new vi({color:r,opacity:.2,transparent:!0,depthWrite:!1,toneMapped:!1})))}updateMatrixWorld(t){let e=-this.plane.constant;Math.abs(e)<1e-8&&(e=1e-8),this.scale.set(.5*this.size,.5*this.size,e),this.children[0].material.side=e<0?p:u,this.lookAt(this.plane.normal),super.updateMatrixWorld(t)}}exports.PlaneHelper=tg;const eg=new Yn;let ng,rg;class ig extends Xr{constructor(t=new Yn(0,0,1),e=new Yn(0,0,0),n=1,r=16776960,i=.2*n,s=.2*i){super(),this.type="ArrowHelper",void 0===ng&&((ng=new ki).setAttribute("position",new Ci([0,0,0,0,1,0],3)),(rg=new Eu(0,.5,1,5,1)).translate(0,-.5,0)),this.position.copy(e),this.line=new cu(ng,new ru({color:r,toneMapped:!1})),this.line.matrixAutoUpdate=!1,this.add(this.line),this.cone=new os(rg,new vi({color:r,toneMapped:!1})),this.cone.matrixAutoUpdate=!1,this.add(this.cone),this.setDirection(t),this.setLength(n,i,s)}setDirection(t){if(t.y>.99999)this.quaternion.set(0,0,0,1);else if(t.y<-.99999)this.quaternion.set(1,0,0,0);else{eg.set(t.z,0,-t.x).normalize();const e=Math.acos(t.y);this.quaternion.setFromAxisAngle(eg,e)}}setLength(t,e=.2*t,n=.2*e){this.line.scale.set(1,Math.max(1e-4,t-e),1),this.line.updateMatrix(),this.cone.scale.set(n,e,n),this.cone.position.y=t,this.cone.updateMatrix()}setColor(t){this.line.material.color.set(t),this.cone.material.color.set(t)}copy(t){return super.copy(t,!1),this.line.copy(t.line),this.cone.copy(t.cone),this}}exports.ArrowHelper=ig;class sg extends pu{constructor(t=1){const e=[0,0,0,t,0,0,0,0,0,0,t,0,0,0,0,0,0,t],n=new ki;n.setAttribute("position",new Ci(e,3)),n.setAttribute("color",new Ci([1,0,0,1,.6,0,0,1,0,.6,1,0,0,0,1,0,.6,1],3)),super(n,new ru({vertexColors:!0,toneMapped:!1})),this.type="AxesHelper"}}exports.AxesHelper=sg;const og=new Float32Array(1),ag=new Int32Array(og.buffer),lg={toHalfFloat:function(t){og[0]=t;const e=ag[0];let n=e>>16&32768,r=e>>12&2047;const i=e>>23&255;return i<103?n:i>142?(n|=31744,n|=(255==i?0:1)&&8388607&e):i<113?n|=((r|=2048)>>114-i)+(r>>113-i&1):(n|=i-112<<10|r>>1,n+=1&r)}};exports.DataUtils=lg;const cg=4,hg=8,ug=Math.pow(2,hg),pg=[.125,.215,.35,.446,.526,.582],dg=hg-cg+1+pg.length,mg=20,fg={[Xe]:0,[Ye]:1,[Je]:2,[Ke]:3,[$e]:4,[tn]:5,[Ze]:6},gg=new vi({side:p,depthWrite:!1,depthTest:!1}),xg=new os(new cs,gg),vg=new lm,{_lodPlanes:yg,_sizeLods:_g,_sigmas:bg}=Cg(),wg=new xi;let Mg=null;const Sg=(1+Math.sqrt(5))/2,Tg=1/Sg,Eg=[new Yn(1,1,1),new Yn(-1,1,1),new Yn(1,1,-1),new Yn(-1,1,-1),new Yn(0,Sg,Tg),new Yn(0,Sg,-Tg),new Yn(Tg,0,Sg),new Yn(-Tg,0,Sg),new Yn(Sg,Tg,0),new Yn(-Sg,Tg,0)];function Ag(t){const e=Math.max(t.r,t.g,t.b),n=Math.min(Math.max(Math.ceil(Math.log2(e)),-128),127);return t.multiplyScalar(Math.pow(2,-n)),(n+128)/255}class Lg{constructor(t){this._renderer=t,this._pingPongRenderTarget=null,this._blurMaterial=Ig(mg),this._equirectShader=null,this._cubemapShader=null,this._compileMaterial(this._blurMaterial)}fromScene(t,e=0,n=.1,r=100){Mg=this._renderer.getRenderTarget();const i=this._allocateTargets();return this._sceneToCubeUV(t,n,r,i),e>0&&this._blur(i,0,0,e),this._applyPMREM(i),this._cleanup(i),i}fromEquirectangular(t){return this._fromTexture(t)}fromCubemap(t){return this._fromTexture(t)}compileCubemapShader(){null===this._cubemapShader&&(this._cubemapShader=Ng(),this._compileMaterial(this._cubemapShader))}compileEquirectangularShader(){null===this._equirectShader&&(this._equirectShader=Bg(),this._compileMaterial(this._equirectShader))}dispose(){this._blurMaterial.dispose(),null!==this._cubemapShader&&this._cubemapShader.dispose(),null!==this._equirectShader&&this._equirectShader.dispose();for(let t=0;t<yg.length;t++)yg[t].dispose()}_cleanup(t){this._pingPongRenderTarget.dispose(),this._renderer.setRenderTarget(Mg),t.scissorTest=!1,Dg(t,0,0,t.width,t.height)}_fromTexture(t){Mg=this._renderer.getRenderTarget();const e=this._allocateTargets(t);return this._textureToCubeUV(t,e),this._applyPMREM(e),this._cleanup(e),e}_allocateTargets(t){const e={magFilter:ut,minFilter:ut,generateMipmaps:!1,type:bt,format:zt,encoding:Rg(t)?t.encoding:Je,depthBuffer:!1},n=Pg(e);return n.depthBuffer=!t,this._pingPongRenderTarget=Pg(e),n}_compileMaterial(t){const e=new os(yg[0],t);this._renderer.compile(e,vg)}_sceneToCubeUV(t,e,n,r){const i=new xs(90,1,e,n),s=[1,-1,1,1,1,1],o=[1,1,1,-1,-1,-1],a=this._renderer,l=a.autoClear,c=a.outputEncoding,h=a.toneMapping;a.getClearColor(wg),a.toneMapping=Z,a.outputEncoding=Xe,a.autoClear=!1;let u=!1;const p=t.background;if(p){if(p.isColor){gg.color.copy(p).convertSRGBToLinear(),t.background=null;const e=Ag(gg.color);gg.opacity=e,u=!0}}else{gg.color.copy(wg).convertSRGBToLinear();const t=Ag(gg.color);gg.opacity=t,u=!0}for(let d=0;d<6;d++){const e=d%3;0==e?(i.up.set(0,s[d],0),i.lookAt(o[d],0,0)):1==e?(i.up.set(0,0,s[d]),i.lookAt(0,o[d],0)):(i.up.set(0,s[d],0),i.lookAt(0,0,o[d])),Dg(r,e*ug,d>2?ug:0,ug,ug),a.setRenderTarget(r),u&&a.render(xg,i),a.render(t,i)}a.toneMapping=h,a.outputEncoding=c,a.autoClear=l}_textureToCubeUV(t,e){const n=this._renderer;t.isCubeTexture?null==this._cubemapShader&&(this._cubemapShader=Ng()):null==this._equirectShader&&(this._equirectShader=Bg());const r=t.isCubeTexture?this._cubemapShader:this._equirectShader,i=new os(yg[0],r),s=r.uniforms;s.envMap.value=t,t.isCubeTexture||s.texelSize.value.set(1/t.image.width,1/t.image.height),s.inputEncoding.value=fg[t.encoding],s.outputEncoding.value=fg[e.texture.encoding],Dg(e,0,0,3*ug,2*ug),n.setRenderTarget(e),n.render(i,vg)}_applyPMREM(t){const e=this._renderer,n=e.autoClear;e.autoClear=!1;for(let r=1;r<dg;r++){const e=Math.sqrt(bg[r]*bg[r]-bg[r-1]*bg[r-1]),n=Eg[(r-1)%Eg.length];this._blur(t,r-1,r,e,n)}e.autoClear=n}_blur(t,e,n,r,i){const s=this._pingPongRenderTarget;this._halfBlur(t,s,e,n,r,"latitudinal",i),this._halfBlur(s,t,n,n,r,"longitudinal",i)}_halfBlur(t,e,n,r,i,s,o){const a=this._renderer,l=this._blurMaterial;"latitudinal"!==s&&"longitudinal"!==s&&console.error("blur direction must be either latitudinal or longitudinal!");const c=new os(yg[r],l),h=l.uniforms,u=_g[n]-1,p=isFinite(i)?Math.PI/(2*u):2*Math.PI/(2*mg-1),d=i/p,m=isFinite(i)?1+Math.floor(3*d):mg;m>mg&&console.warn(`sigmaRadians, ${i}, is too large and will clip, as it requested ${m} samples when the maximum is set to ${mg}`);const f=[];let g=0;for(let v=0;v<mg;++v){const t=v/d,e=Math.exp(-t*t/2);f.push(e),0==v?g+=e:v<m&&(g+=2*e)}for(let v=0;v<f.length;v++)f[v]=f[v]/g;h.envMap.value=t.texture,h.samples.value=m,h.weights.value=f,h.latitudinal.value="latitudinal"===s,o&&(h.poleAxis.value=o),h.dTheta.value=p,h.mipInt.value=hg-n,h.inputEncoding.value=fg[t.texture.encoding],h.outputEncoding.value=fg[t.texture.encoding];const x=_g[r];Dg(e,3*Math.max(0,ug-2*x),(0===r?0:2*ug)+2*x*(r>hg-cg?r-hg+cg:0),3*x,2*x),a.setRenderTarget(e),a.render(c,vg)}}function Rg(t){return void 0!==t&&t.type===bt&&(t.encoding===Xe||t.encoding===Ye||t.encoding===Ze)}function Cg(){const t=[],e=[],n=[];let r=hg;for(let i=0;i<dg;i++){const s=Math.pow(2,r);e.push(s);let o=1/s;i>hg-cg?o=pg[i-hg+cg-1]:0==i&&(o=0),n.push(o);const a=1/(s-1),l=-a/2,c=1+a/2,h=[l,l,c,l,c,c,l,l,c,c,l,c],u=6,p=6,d=3,m=2,f=1,g=new Float32Array(d*p*u),x=new Float32Array(m*p*u),v=new Float32Array(f*p*u);for(let t=0;t<u;t++){const e=t%3*2/3-1,n=t>2?0:-1,r=[e,n,0,e+2/3,n,0,e+2/3,n+1,0,e,n,0,e+2/3,n+1,0,e,n+1,0];g.set(r,d*p*t),x.set(h,m*p*t);const i=[t,t,t,t,t,t];v.set(i,f*p*t)}const y=new ki;y.setAttribute("position",new bi(g,d)),y.setAttribute("uv",new bi(x,m)),y.setAttribute("faceIndex",new bi(v,f)),t.push(y),r>cg&&r--}return{_lodPlanes:t,_sizeLods:e,_sigmas:n}}function Pg(t){const e=new jn(3*ug,3*ug,t);return e.texture.mapping=ot,e.texture.name="PMREM.cubeUv",e.scissorTest=!0,e}function Dg(t,e,n,r,i){t.viewport.set(e,n,r,i),t.scissor.set(e,n,r,i)}function Ig(t){const e=new Float32Array(t),n=new Yn(0,1,0);return new Np({name:"SphericalGaussianBlur",defines:{n:t},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:e},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:n},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t${Og()}\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include <cube_uv_reflection_fragment>\n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Bg(){const t=new On(1,1);return new Np({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null},texelSize:{value:t},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform vec2 texelSize;\n\n\t\t\t${Og()}\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tvec2 f = fract( uv / texelSize - 0.5 );\n\t\t\t\tuv -= f * texelSize;\n\t\t\t\tvec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x += texelSize.x;\n\t\t\t\tvec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.y += texelSize.y;\n\t\t\t\tvec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x -= texelSize.x;\n\t\t\t\tvec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\n\t\t\t\tvec3 tm = mix( tl, tr, f.x );\n\t\t\t\tvec3 bm = mix( bl, br, f.x );\n\t\t\t\tgl_FragColor.rgb = mix( tm, bm, f.y );\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Ng(){return new Np({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\t${Og()}\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Fg(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute vec3 position;\n\t\tattribute vec2 uv;\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Og(){return"\n\n\t\tuniform int inputEncoding;\n\t\tuniform int outputEncoding;\n\n\t\t#include <encodings_pars_fragment>\n\n\t\tvec4 inputTexelToLinear( vec4 value ) {\n\n\t\t\tif ( inputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( inputEncoding == 1 ) {\n\n\t\t\t\treturn sRGBToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 2 ) {\n\n\t\t\t\treturn RGBEToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 3 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 7.0 );\n\n\t\t\t} else if ( inputEncoding == 4 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 16.0 );\n\n\t\t\t} else if ( inputEncoding == 5 ) {\n\n\t\t\t\treturn RGBDToLinear( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn GammaToLinear( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 linearToOutputTexel( vec4 value ) {\n\n\t\t\tif ( outputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( outputEncoding == 1 ) {\n\n\t\t\t\treturn LinearTosRGB( value );\n\n\t\t\t} else if ( outputEncoding == 2 ) {\n\n\t\t\t\treturn LinearToRGBE( value );\n\n\t\t\t} else if ( outputEncoding == 3 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 7.0 );\n\n\t\t\t} else if ( outputEncoding == 4 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 16.0 );\n\n\t\t\t} else if ( outputEncoding == 5 ) {\n\n\t\t\t\treturn LinearToRGBD( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn LinearToGamma( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 envMapTexelToLinear( vec4 color ) {\n\n\t\t\treturn inputTexelToLinear( color );\n\n\t\t}\n\t"}exports.PMREMGenerator=Lg;const zg=0;exports.LineStrip=0;const Gg=1;exports.LinePieces=1;const Hg=0;exports.NoColors=0;const Ug=1;exports.FaceColors=1;const kg=2;function Vg(t){return console.warn("THREE.MeshFaceMaterial has been removed. Use an Array instead."),t}function Wg(t=[]){return console.warn("THREE.MultiMaterial has been removed. Use an Array instead."),t.isMultiMaterial=!0,t.materials=t,t.clone=function(){return t.slice()},t}function jg(t,e){return console.warn("THREE.PointCloud has been renamed to THREE.Points."),new yu(t,e)}function qg(t){return console.warn("THREE.Particle has been renamed to THREE.Sprite."),new Oh(t)}function Xg(t,e){return console.warn("THREE.ParticleSystem has been renamed to THREE.Points."),new yu(t,e)}function Yg(t){return console.warn("THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Zg(t){return console.warn("THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Jg(t){return console.warn("THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Qg(t,e,n){return console.warn("THREE.Vertex has been removed. Use THREE.Vector3 instead."),new Yn(t,e,n)}function Kg(t,e){return console.warn("THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead."),new bi(t,e).setUsage(Mn)}function $g(t,e){return console.warn("THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead."),new wi(t,e)}function tx(t,e){return console.warn("THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead."),new Mi(t,e)}function ex(t,e){return console.warn("THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead."),new Si(t,e)}function nx(t,e){return console.warn("THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead."),new Ti(t,e)}function rx(t,e){return console.warn("THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead."),new Ei(t,e)}function ix(t,e){return console.warn("THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead."),new Ai(t,e)}function sx(t,e){return console.warn("THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead."),new Li(t,e)}function ox(t,e){return console.warn("THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead."),new Ci(t,e)}function ax(t,e){return console.warn("THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead."),new Pi(t,e)}function lx(t){return console.warn("THREE.AxisHelper has been renamed to THREE.AxesHelper."),new sg(t)}function cx(t,e){return console.warn("THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead."),new Kf(t,e)}function hx(t,e){return console.warn("THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead."),new pu(new Bu(t.geometry),new ru({color:void 0!==e?e:16777215}))}function ux(t,e){return console.warn("THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead."),new pu(new Dp(t.geometry),new ru({color:void 0!==e?e:16777215}))}function px(t){return console.warn("THREE.XHRLoader has been renamed to THREE.FileLoader."),new pd(t)}function dx(t){return console.warn("THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader."),new xd(t)}function mx(t,e,n){return console.warn("THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options )."),new ws(t,n)}function fx(){console.error("THREE.CanvasRenderer has been removed")}function gx(){console.error("THREE.JSONLoader has been removed.")}exports.VertexColors=2,yd.create=function(t,e){return console.log("THREE.Curve.create() has been deprecated"),t.prototype=Object.create(yd.prototype),t.prototype.constructor=t,t.prototype.getPoint=e,t},Xd.prototype.fromPoints=function(t){return console.warn("THREE.Path: .fromPoints() has been renamed to .setFromPoints()."),this.setFromPoints(t)},Uf.prototype.setColors=function(){console.error("THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.")},Bf.prototype.update=function(){console.error("THREE.SkeletonHelper: update() no longer needs to be called.")},hd.prototype.extractUrlBase=function(t){return console.warn("THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead."),gm.extractUrlBase(t)},hd.Handlers={add:function(){console.error("THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.")},get:function(){console.error("THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.")}},Sf.prototype.center=function(t){return console.warn("THREE.Box2: .center() has been renamed to .getCenter()."),this.getCenter(t)},Sf.prototype.empty=function(){return console.warn("THREE.Box2: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Sf.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Sf.prototype.size=function(t){return console.warn("THREE.Box2: .size() has been renamed to .getSize()."),this.getSize(t)},Qn.prototype.center=function(t){return console.warn("THREE.Box3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Qn.prototype.empty=function(){return console.warn("THREE.Box3: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Qn.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Qn.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},Qn.prototype.size=function(t){return console.warn("THREE.Box3: .size() has been renamed to .getSize()."),this.getSize(t)},dr.prototype.empty=function(){return console.warn("THREE.Sphere: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Es.prototype.setFromMatrix=function(t){return console.warn("THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix()."),this.setFromProjectionMatrix(t)},Af.prototype.center=function(t){return console.warn("THREE.Line3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Fn.random16=function(){return console.warn("THREE.Math: .random16() has been deprecated. Use Math.random() instead."),Math.random()},Fn.nearestPowerOfTwo=function(t){return console.warn("THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo()."),Fn.floorPowerOfTwo(t)},Fn.nextPowerOfTwo=function(t){return console.warn("THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo()."),Fn.ceilPowerOfTwo(t)},zn.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},zn.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix3: .multiplyVector3Array() has been removed.")},zn.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.applyToVector3Array=function(){console.error("THREE.Matrix3: .applyToVector3Array() has been removed.")},zn.prototype.getInverse=function(t){return console.warn("THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},wr.prototype.extractPosition=function(t){return console.warn("THREE.Matrix4: .extractPosition() has been renamed to .copyPosition()."),this.copyPosition(t)},wr.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},wr.prototype.getPosition=function(){return console.warn("THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead."),(new Yn).setFromMatrixColumn(this,3)},wr.prototype.setRotationFromQuaternion=function(t){return console.warn("THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion()."),this.makeRotationFromQuaternion(t)},wr.prototype.multiplyToArray=function(){console.warn("THREE.Matrix4: .multiplyToArray() has been removed.")},wr.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector4=function(t){return console.warn("THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix4: .multiplyVector3Array() has been removed.")},wr.prototype.rotateAxis=function(t){console.warn("THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead."),t.transformDirection(this)},wr.prototype.crossVector=function(t){return console.warn("THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.translate=function(){console.error("THREE.Matrix4: .translate() has been removed.")},wr.prototype.rotateX=function(){console.error("THREE.Matrix4: .rotateX() has been removed.")},wr.prototype.rotateY=function(){console.error("THREE.Matrix4: .rotateY() has been removed.")},wr.prototype.rotateZ=function(){console.error("THREE.Matrix4: .rotateZ() has been removed.")},wr.prototype.rotateByAxis=function(){console.error("THREE.Matrix4: .rotateByAxis() has been removed.")},wr.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.applyToVector3Array=function(){console.error("THREE.Matrix4: .applyToVector3Array() has been removed.")},wr.prototype.makeFrustum=function(t,e,n,r,i,s){return console.warn("THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead."),this.makePerspective(t,e,r,n,i,s)},wr.prototype.getInverse=function(t){return console.warn("THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},Qr.prototype.isIntersectionLine=function(t){return console.warn("THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine()."),this.intersectsLine(t)},Xn.prototype.multiplyVector3=function(t){return console.warn("THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead."),t.applyQuaternion(this)},Xn.prototype.inverse=function(){return console.warn("THREE.Quaternion: .inverse() has been renamed to invert()."),this.invert()},br.prototype.isIntersectionBox=function(t){return console.warn("THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},br.prototype.isIntersectionPlane=function(t){return console.warn("THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane()."),this.intersectsPlane(t)},br.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},li.prototype.area=function(){return console.warn("THREE.Triangle: .area() has been renamed to .getArea()."),this.getArea()},li.prototype.barycoordFromPoint=function(t,e){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),this.getBarycoord(t,e)},li.prototype.midpoint=function(t){return console.warn("THREE.Triangle: .midpoint() has been renamed to .getMidpoint()."),this.getMidpoint(t)},li.prototypenormal=function(t){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),this.getNormal(t)},li.prototype.plane=function(t){return console.warn("THREE.Triangle: .plane() has been renamed to .getPlane()."),this.getPlane(t)},li.barycoordFromPoint=function(t,e,n,r,i){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),li.getBarycoord(t,e,n,r,i)},li.normal=function(t,e,n,r){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),li.getNormal(t,e,n,r)},Yd.prototype.extractAllPoints=function(t){return console.warn("THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead."),this.extractPoints(t)},Yd.prototype.extrude=function(t){return console.warn("THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead."),new gp(this,t)},Yd.prototype.makeGeometry=function(t){return console.warn("THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead."),new Sp(this,t)},On.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},On.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},On.prototype.lengthManhattan=function(){return console.warn("THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Yn.prototype.setEulerFromRotationMatrix=function(){console.error("THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.")},Yn.prototype.setEulerFromQuaternion=function(){console.error("THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.")},Yn.prototype.getPositionFromMatrix=function(t){return console.warn("THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition()."),this.setFromMatrixPosition(t)},Yn.prototype.getScaleFromMatrix=function(t){return console.warn("THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale()."),this.setFromMatrixScale(t)},Yn.prototype.getColumnFromMatrix=function(t,e){return console.warn("THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn()."),this.setFromMatrixColumn(e,t)},Yn.prototype.applyProjection=function(t){return console.warn("THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead."),this.applyMatrix4(t)},Yn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Yn.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},Yn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Wn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Wn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Xr.prototype.getChildByName=function(t){return console.warn("THREE.Object3D: .getChildByName() has been renamed to .getObjectByName()."),this.getObjectByName(t)},Xr.prototype.renderDepth=function(){console.warn("THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.")},Xr.prototype.translate=function(t,e){return console.warn("THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead."),this.translateOnAxis(e,t)},Xr.prototype.getWorldRotation=function(){console.error("THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.")},Xr.prototype.applyMatrix=function(t){return console.warn("THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(Xr.prototype,{eulerOrder:{get:function(){return console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order},set:function(t){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order=t}},useQuaternion:{get:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")},set:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")}}}),os.prototype.setDrawMode=function(){console.error("THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")},Object.defineProperties(os.prototype,{drawMode:{get:function(){return console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode."),0},set:function(){console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")}}}),Object.defineProperties(Uh.prototype,{objects:{get:function(){return console.warn("THREE.LOD: .objects has been renamed to .levels."),this.levels}}}),Object.defineProperty(Qh.prototype,"useVertexTexture",{get:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")},set:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")}}),Xh.prototype.initBones=function(){console.error("THREE.SkinnedMesh: initBones() has been removed.")},Object.defineProperty(yd.prototype,"__arcLengthDivisions",{get:function(){return console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions},set:function(t){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions=t}}),xs.prototype.setLens=function(t,e){console.warn("THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup."),void 0!==e&&(this.filmGauge=e),this.setFocalLength(t)},Object.defineProperties(Zd.prototype,{onlyShadow:{set:function(){console.warn("THREE.Light: .onlyShadow has been removed.")}},shadowCameraFov:{set:function(t){console.warn("THREE.Light: .shadowCameraFov is now .shadow.camera.fov."),this.shadow.camera.fov=t}},shadowCameraLeft:{set:function(t){console.warn("THREE.Light: .shadowCameraLeft is now .shadow.camera.left."),this.shadow.camera.left=t}},shadowCameraRight:{set:function(t){console.warn("THREE.Light: .shadowCameraRight is now .shadow.camera.right."),this.shadow.camera.right=t}},shadowCameraTop:{set:function(t){console.warn("THREE.Light: .shadowCameraTop is now .shadow.camera.top."),this.shadow.camera.top=t}},shadowCameraBottom:{set:function(t){console.warn("THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom."),this.shadow.camera.bottom=t}},shadowCameraNear:{set:function(t){console.warn("THREE.Light: .shadowCameraNear is now .shadow.camera.near."),this.shadow.camera.near=t}},shadowCameraFar:{set:function(t){console.warn("THREE.Light: .shadowCameraFar is now .shadow.camera.far."),this.shadow.camera.far=t}},shadowCameraVisible:{set:function(){console.warn("THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.")}},shadowBias:{set:function(t){console.warn("THREE.Light: .shadowBias is now .shadow.bias."),this.shadow.bias=t}},shadowDarkness:{set:function(){console.warn("THREE.Light: .shadowDarkness has been removed.")}},shadowMapWidth:{set:function(t){console.warn("THREE.Light: .shadowMapWidth is now .shadow.mapSize.width."),this.shadow.mapSize.width=t}},shadowMapHeight:{set:function(t){console.warn("THREE.Light: .shadowMapHeight is now .shadow.mapSize.height."),this.shadow.mapSize.height=t}}}),Object.defineProperties(bi.prototype,{length:{get:function(){return console.warn("THREE.BufferAttribute: .length has been deprecated. Use .count instead."),this.array.length}},dynamic:{get:function(){return console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.usage===Mn},set:function(){console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.setUsage(Mn)}}}),bi.prototype.setDynamic=function(t){return console.warn("THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},bi.prototype.copyIndicesArray=function(){console.error("THREE.BufferAttribute: .copyIndicesArray() has been removed.")},bi.prototype.setArray=function(){console.error("THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},ki.prototype.addIndex=function(t){console.warn("THREE.BufferGeometry: .addIndex() has been renamed to .setIndex()."),this.setIndex(t)},ki.prototype.addAttribute=function(t,e){return console.warn("THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute()."),e&&e.isBufferAttribute||e&&e.isInterleavedBufferAttribute?"index"===t?(console.warn("THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute."),this.setIndex(e),this):this.setAttribute(t,e):(console.warn("THREE.BufferGeometry: .addAttribute() now expects ( name, attribute )."),this.setAttribute(t,new bi(arguments[1],arguments[2])))},ki.prototype.addDrawCall=function(t,e,n){void 0!==n&&console.warn("THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset."),console.warn("THREE.BufferGeometry: .addDrawCall() is now .addGroup()."),this.addGroup(t,e)},ki.prototype.clearDrawCalls=function(){console.warn("THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups()."),this.clearGroups()},ki.prototype.computeOffsets=function(){console.warn("THREE.BufferGeometry: .computeOffsets() has been removed.")},ki.prototype.removeAttribute=function(t){return console.warn("THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute()."),this.deleteAttribute(t)},ki.prototype.applyMatrix=function(t){return console.warn("THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(ki.prototype,{drawcalls:{get:function(){return console.error("THREE.BufferGeometry: .drawcalls has been renamed to .groups."),this.groups}},offsets:{get:function(){return console.warn("THREE.BufferGeometry: .offsets has been renamed to .groups."),this.groups}}}),Object.defineProperties(xm.prototype,{maxInstancedCount:{get:function(){return console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount},set:function(t){console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount=t}}}),Object.defineProperties(vf.prototype,{linePrecision:{get:function(){return console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold},set:function(t){console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold=t}}}),Object.defineProperties(_h.prototype,{dynamic:{get:function(){return console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.usage===Mn},set:function(t){console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.setUsage(t)}}}),_h.prototype.setDynamic=function(t){return console.warn("THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},_h.prototype.setArray=function(){console.error("THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},gp.prototype.getArrays=function(){console.error("THREE.ExtrudeGeometry: .getArrays() has been removed.")},gp.prototype.addShapeList=function(){console.error("THREE.ExtrudeGeometry: .addShapeList() has been removed.")},gp.prototype.addShape=function(){console.error("THREE.ExtrudeGeometry: .addShape() has been removed.")},yh.prototype.dispose=function(){console.error("THREE.Scene: .dispose() has been removed.")},Object.defineProperties(ff.prototype,{dynamic:{set:function(){console.warn("THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.")}},onUpdate:{value:function(){return console.warn("THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead."),this}}}),Object.defineProperties(hi.prototype,{wrapAround:{get:function(){console.warn("THREE.Material: .wrapAround has been removed.")},set:function(){console.warn("THREE.Material: .wrapAround has been removed.")}},overdraw:{get:function(){console.warn("THREE.Material: .overdraw has been removed.")},set:function(){console.warn("THREE.Material: .overdraw has been removed.")}},wrapRGB:{get:function(){return console.warn("THREE.Material: .wrapRGB has been removed."),new xi}},shading:{get:function(){console.error("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")},set:function(t){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===t}},stencilMask:{get:function(){return console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask},set:function(t){console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask=t}}}),Object.defineProperties(zp.prototype,{metal:{get:function(){return console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead."),!1},set:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead")}}}),Object.defineProperties(Op.prototype,{transparency:{get:function(){return console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission},set:function(t){console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission=t}}}),Object.defineProperties(fs.prototype,{derivatives:{get:function(){return console.warn("THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives},set:function(t){console.warn("THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives=t}}}),fh.prototype.clearTarget=function(t,e,n,r){console.warn("THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead."),this.setRenderTarget(t),this.clear(e,n,r)},fh.prototype.animate=function(t){console.warn("THREE.WebGLRenderer: .animate() is now .setAnimationLoop()."),this.setAnimationLoop(t)},fh.prototype.getCurrentRenderTarget=function(){return console.warn("THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget()."),this.getRenderTarget()},fh.prototype.getMaxAnisotropy=function(){return console.warn("THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy()."),this.capabilities.getMaxAnisotropy()},fh.prototype.getPrecision=function(){return console.warn("THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision."),this.capabilities.precision},fh.prototype.resetGLState=function(){return console.warn("THREE.WebGLRenderer: .resetGLState() is now .state.reset()."),this.state.reset()},fh.prototype.supportsFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' )."),this.extensions.get("OES_texture_float")},fh.prototype.supportsHalfFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' )."),this.extensions.get("OES_texture_half_float")},fh.prototype.supportsStandardDerivatives=function(){return console.warn("THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' )."),this.extensions.get("OES_standard_derivatives")},fh.prototype.supportsCompressedTextureS3TC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' )."),this.extensions.get("WEBGL_compressed_texture_s3tc")},fh.prototype.supportsCompressedTexturePVRTC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' )."),this.extensions.get("WEBGL_compressed_texture_pvrtc")},fh.prototype.supportsBlendMinMax=function(){return console.warn("THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' )."),this.extensions.get("EXT_blend_minmax")},fh.prototype.supportsVertexTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures."),this.capabilities.vertexTextures},fh.prototype.supportsInstancedArrays=function(){return console.warn("THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' )."),this.extensions.get("ANGLE_instanced_arrays")},fh.prototype.enableScissorTest=function(t){console.warn("THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest()."),this.setScissorTest(t)},fh.prototype.initMaterial=function(){console.warn("THREE.WebGLRenderer: .initMaterial() has been removed.")},fh.prototype.addPrePlugin=function(){console.warn("THREE.WebGLRenderer: .addPrePlugin() has been removed.")},fh.prototype.addPostPlugin=function(){console.warn("THREE.WebGLRenderer: .addPostPlugin() has been removed.")},fh.prototype.updateShadowMap=function(){console.warn("THREE.WebGLRenderer: .updateShadowMap() has been removed.")},fh.prototype.setFaceCulling=function(){console.warn("THREE.WebGLRenderer: .setFaceCulling() has been removed.")},fh.prototype.allocTextureUnit=function(){console.warn("THREE.WebGLRenderer: .allocTextureUnit() has been removed.")},fh.prototype.setTexture=function(){console.warn("THREE.WebGLRenderer: .setTexture() has been removed.")},fh.prototype.setTexture2D=function(){console.warn("THREE.WebGLRenderer: .setTexture2D() has been removed.")},fh.prototype.setTextureCube=function(){console.warn("THREE.WebGLRenderer: .setTextureCube() has been removed.")},fh.prototype.getActiveMipMapLevel=function(){return console.warn("THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel()."),this.getActiveMipmapLevel()},Object.defineProperties(fh.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled."),this.shadowMap.enabled=t}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type."),this.shadowMap.type=t}},shadowMapCullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")}},context:{get:function(){return console.warn("THREE.WebGLRenderer: .context has been removed. Use .getContext() instead."),this.getContext()}},vr:{get:function(){return console.warn("THREE.WebGLRenderer: .vr has been renamed to .xr"),this.xr}},gammaInput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead."),!1},set:function(){console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.")}},gammaOutput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),!1},set:function(t){console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),this.outputEncoding=!0===t?Ye:Xe}},toneMappingWhitePoint:{get:function(){return console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed."),1},set:function(){console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.")}}}),Object.defineProperties(sh.prototype,{cullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")}},renderReverseSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")}},renderSingleSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. 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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -560,13 +560,16 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
-},{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"H4B8":[function(require,module,exports) {
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strict";require("core-js/modules/es6.array.copy-within"),require("core-js/modules/es6.array.fill"),require("core-js/modules/es6.array.find"),require("core-js/modules/es6.array.find-index"),require("core-js/modules/es7.array.flat-map"),require("core-js/modules/es6.array.from"),require("core-js/modules/es7.array.includes"),require("core-js/modules/es6.array.iterator"),require("core-js/modules/es6.array.of"),require("core-js/modules/es6.array.sort"),require("core-js/modules/es6.array.species"),require("core-js/modules/es6.date.to-json"),require("core-js/modules/es6.date.to-primitive"),require("core-js/modules/es6.function.has-instance"),require("core-js/modules/es6.function.name"),require("core-js/modules/es6.map"),require("core-js/modules/es6.math.acosh"),require("core-js/modules/es6.math.asinh"),require("core-js/modules/es6.math.atanh"),require("core-js/modules/es6.math.cbrt"),require("core-js/modules/es6.math.clz32"),require("core-js/modules/es6.math.cosh"),require("core-js/modules/es6.math.expm1"),require("core-js/modules/es6.math.fround"),require("core-js/modules/es6.math.hypot"),require("core-js/modules/es6.math.imul"),require("core-js/modules/es6.math.log1p"),require("core-js/modules/es6.math.log10"),require("core-js/modules/es6.math.log2"),require("core-js/modules/es6.math.sign"),require("core-js/modules/es6.math.sinh"),require("core-js/modules/es6.math.tanh"),require("core-js/modules/es6.math.trunc"),require("core-js/modules/es6.number.constructor"),require("core-js/modules/es6.number.epsilon"),require("core-js/modules/es6.number.is-finite"),require("core-js/modules/es6.number.is-integer"),require("core-js/modules/es6.number.is-nan"),require("core-js/modules/es6.number.is-safe-integer"),require("core-js/modules/es6.number.max-safe-integer"),require("core-js/modules/es6.number.min-safe-integer"),require("core-js/modules/es6.number.parse-float"),require("core-js/modules/es6.number.parse-int"),require("core-js/modules/es6.object.assign"),require("core-js/modules/es7.object.define-getter"),require("core-js/modules/es7.object.define-setter"),require("core-js/modules/es7.object.entries"),require("core-js/modules/es6.object.freeze"),require("core-js/modules/es6.object.get-own-property-descriptor"),require("core-js/modules/es7.object.get-own-property-descriptors"),require("core-js/modules/es6.object.get-own-property-names"),require("core-js/modules/es6.object.get-prototype-of"),require("core-js/modules/es7.object.lookup-getter"),require("core-js/modules/es7.object.lookup-setter"),require("core-js/modules/es6.object.prevent-extensions"),require("core-js/modules/es6.object.to-string"),require("core-js/modules/es6.object.is"),require("core-js/modules/es6.object.is-frozen"),require("core-js/modules/es6.object.is-sealed"),require("core-js/modules/es6.object.is-extensible"),require("core-js/modules/es6.object.keys"),require("core-js/modules/es6.object.seal"),require("core-js/modules/es6.object.set-prototype-of"),require("core-js/modules/es7.object.values"),require("core-js/modules/es6.promise"),require("core-js/modules/es7.promise.finally"),require("core-js/modules/es6.reflect.apply"),require("core-js/modules/es6.reflect.construct"),require("core-js/modules/es6.reflect.define-property"),require("core-js/modules/es6.reflect.delete-property"),require("core-js/modules/es6.reflect.get"),require("core-js/modules/es6.reflect.get-own-property-descriptor"),require("core-js/modules/es6.reflect.get-prototype-of"),require("core-js/modules/es6.reflect.has"),require("core-js/modules/es6.reflect.is-extensible"),require("core-js/modules/es6.reflect.own-keys"),require("core-js/modules/es6.reflect.prevent-extensions"),require("core-js/modules/es6.reflect.set"),require("core-js/modules/es6.reflect.set-prototype-of"),require("core-js/modules/es6.regexp.constructor"),require("core-js/modules/es6.regexp.flags"),require("core-js/modules/es6.regexp.match"),require("core-js/modules/es6.regexp.replace"),require("core-js/modules/es6.regexp.split"),require("core-js/modules/es6.regexp.search"),require("core-js/modules/es6.regexp.to-string"),require("core-js/modules/es6.set"),require("core-js/modules/es6.symbol"),require("core-js/modules/es7.symbol.async-iterator"),require("core-js/modules/es6.string.anchor"),require("core-js/modules/es6.string.big"),require("core-js/modules/es6.string.blink"),require("core-js/modules/es6.string.bold"),require("core-js/modules/es6.string.code-point-at"),require("core-js/modules/es6.string.ends-with"),require("core-js/modules/es6.string.fixed"),require("core-js/modules/es6.string.fontcolor"),require("core-js/modules/es6.string.fontsize"),require("core-js/modules/es6.string.from-code-point"),require("core-js/modules/es6.string.includes"),require("core-js/modules/es6.string.italics"),require("core-js/modules/es6.string.iterator"),require("core-js/modules/es6.string.link"),require("core-js/modules/es7.string.pad-start"),require("core-js/modules/es7.string.pad-end"),require("core-js/modules/es6.string.raw"),require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"),require("core-js/modules/es6.string.includes.js"),require("core-js/modules/es6.string.italics.js"),require("core-js/modules/es6.string.iterator.js"),require("core-js/modules/es6.string.link.js"),require("core-js/modules/es7.string.pad-start.js"),require("core-js/modules/es7.string.pad-end.js"),require("core-js/modules/es6.string.raw.js"),require("core-js/modules/es6.string.repeat.js"),require("core-js/modules/es6.string.small.js"),require("core-js/modules/es6.string.starts-with.js"),require("core-js/modules/es6.string.strike.js"),require("core-js/modules/es6.string.sub.js"),require("core-js/modules/es6.string.sup.js"),require("core-js/modules/es7.string.trim-left.js"),require("core-js/modules/es7.string.trim-right.js"),require("core-js/modules/es6.typed.array-buffer.js"),require("core-js/modules/es6.typed.int8-array.js"),require("core-js/modules/es6.typed.uint8-array.js"),require("core-js/modules/es6.typed.uint8-clamped-array.js"),require("core-js/modules/es6.typed.int16-array.js"),require("core-js/modules/es6.typed.uint16-array.js"),require("core-js/modules/es6.typed.int32-array.js"),require("core-js/modules/es6.typed.uint32-array.js"),require("core-js/modules/es6.typed.float32-array.js"),require("core-js/modules/es6.typed.float64-array.js"),require("core-js/modules/es6.weak-map.js"),require("core-js/modules/es6.weak-set.js"),require("core-js/modules/web.timers.js"),require("core-js/modules/web.immediate.js"),require("core-js/modules/web.dom.iterable.js");var 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W=O.addFolder("Mesh");W.add(S.mesh,"useBoundsTree").onChange(function(){return k()}),W.add(S.mesh,"lazyGeneration").onChange(function(){f.disposeBoundsTree(),k()}),W.add(S.mesh,"splitStrategy",{CENTER:t.CENTER,SAH:t.SAH,AVERAGE:t.AVERAGE}).onChange(function(){return k()}),W.add(S.mesh,"count").min(1).max(300).step(1).onChange(function(){return k()}),W.add(S.mesh,"speed").min(0).max(20),W.add(S.mesh,"visualizeBounds").onChange(function(){return k()}),W.add(S.mesh,"visualBoundsDepth").min(1).max(40).step(1).onChange(function(){return k()}),W.open(),window.addEventListener("resize",function(){w.aspect=window.innerWidth/window.innerHeight,w.updateProjectionMatrix(),d.setSize(window.innerWidth,window.innerHeight)},!1),k(),A();
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es/es7.string.pad-start.js":"SWNE","core-js/modules/es7.string.pad-end.js":"n20m","core-js/modules/es6.string.raw.js":"t29D","core-js/modules/es6.string.repeat.js":"C85R","core-js/modules/es6.string.small.js":"qBr3","core-js/modules/es6.string.starts-with.js":"w2SA","core-js/modules/es6.string.strike.js":"eNyu","core-js/modules/es6.string.sub.js":"BVLK","core-js/modules/es6.string.sup.js":"kMsL","core-js/modules/es7.string.trim-left.js":"ppxd","core-js/modules/es7.string.trim-right.js":"hxx1","core-js/modules/es6.typed.array-buffer.js":"NJ0a","core-js/modules/es6.typed.int8-array.js":"wqMZ","core-js/modules/es6.typed.uint8-array.js":"QTtY","core-js/modules/es6.typed.uint8-clamped-array.js":"Kqgs","core-js/modules/es6.typed.int16-array.js":"fEGw","core-js/modules/es6.typed.uint16-array.js":"xyd6","core-js/modules/es6.typed.int32-array.js":"hIko","core-js/modules/es6.typed.uint32-array.js":"tNPN","core-js/modules/es6.typed.float32-array.js":"wisA","core-js/modules/es6.typed.float64-array.js":"mbTX","core-js/modules/es6.weak-map.js":"D6DP","core-js/modules/es6.weak-set.js":"bRUR","core-js/modules/web.timers.js":"OTsy","core-js/modules/web.immediate.js":"hZLH","core-js/modules/web.dom.iterable.js":"v6Aj","stats.js":"dnrf","dat.gui":"KkZG","three":"dKqR","../src/MeshBVHVisualizer.js":"jNwr","../src/index.js":"uBxZ","regenerator-runtime/runtime.js":"QVnC"}]},{},["H4B8"], 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\ No newline at end of file
diff --git a/example/bundle/raycast.html b/example/bundle/raycast.html
index 41b90acce..4886af3ff 100644
--- a/example/bundle/raycast.html
+++ b/example/bundle/raycast.html
@@ -1,2 +1 @@
-<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script>
-</body></html>
\ No newline at end of file
+<!DOCTYPE html><html><head><title>THREE.js BVH Geometry Raycasting</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"><style>body,html{padding:0;margin:0;overflow:hidden}canvas{width:100%;height:100%}</style></head><body> <script src="raycast.88074831.js"></script> </body></html>
\ No newline at end of file
diff --git a/example/bundle/sculpt.493e9c78.js b/example/bundle/sculpt.493e9c78.js
index c362d6206..013f03786 100644
--- a/example/bundle/sculpt.493e9c78.js
+++ b/example/bundle/sculpt.493e9c78.js
@@ -2,7 +2,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 
 var e=module.exports="undefined"!=typeof window&&window.Math==Math?window:"undefined"!=typeof self&&self.Math==Math?self:Function("return this")();"number"==typeof __g&&(__g=e);
 },{}],"ss9A":[function(require,module,exports) {
-var e=module.exports={version:"2.6.11"};"number"==typeof __e&&(__e=e);
+var e=module.exports={version:"2.6.12"};"number"==typeof __e&&(__e=e);
 },{}],"M7z6":[function(require,module,exports) {
 module.exports=function(o){return"object"==typeof o?null!==o:"function"==typeof o};
 },{}],"eT53":[function(require,module,exports) {
@@ -31,7 +31,7 @@ var o=0,t=Math.random();module.exports=function(n){return"Symbol(".concat(void 0
 module.exports=!1;
 },{}],"zGcK":[function(require,module,exports) {
 
-var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2019 Denis Pushkarev (zloirock.ru)"});
+var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2020 Denis Pushkarev (zloirock.ru)"});
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 module.exports=require("./_shared")("native-function-to-string",Function.toString);
 },{"./_shared":"zGcK"}],"PHot":[function(require,module,exports) {
@@ -78,7 +78,11 @@ var r=require("./_is-object"),e=require("./_is-array"),o=require("./_wks")("spec
 var r=require("./_array-species-constructor");module.exports=function(e,n){return new(r(e))(n)};
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+},{"./_ctx":"E3Kh","./_iobject":"nGau","./_to-object":"rfVX","./_to-length":"dJBs","./_array-species-create":"igas"}],"Hh2M":[function(require,module,exports) {
+"use strict";var l=require("./_fails");module.exports=function(n,u){return!!n&&l(function(){u?n.call(null,function(){},1):n.call(null)})};
+},{"./_fails":"BXiR"}],"GyG6":[function(require,module,exports) {
+"use strict";var r=require("./_export"),e=require("./_array-methods")(2);r(r.P+r.F*!require("./_strict-method")([].filter,!0),"Array",{filter:function(r){return e(this,r,arguments[1])}});
+},{"./_export":"izCb","./_array-methods":"AuPh","./_strict-method":"Hh2M"}],"Qppk":[function(require,module,exports) {
 "use strict";var r=require("./_export"),e=require("./_array-methods")(5),i="find",n=!0;i in[]&&Array(1)[i](function(){n=!1}),r(r.P+r.F*n,"Array",{find:function(r){return e(this,r,arguments.length>1?arguments[1]:void 0)}}),require("./_add-to-unscopables")(i);
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F?(A.bind(t,"click",function(){A.fakeEvent(n.__button,"click")}),A.bind(t,"mouseover",function(){A.addClass(n.__button,"hover")}),A.bind(t,"mouseout",function(){A.removeClass(n.__button,"hover")})):n instanceof P&&(A.addClass(t,"color"),n.updateDisplay=i.compose(function(e){return t.style.borderLeftColor=n.__color.toString(),e},n.updateDisplay),n.updateDisplay());n.setValue=i.compose(function(t){return e.getRoot().__preset_select&&n.isModified()&&se(e.getRoot(),!0),t},n.setValue)}function le(e,t){var n=e.getRoot(),o=n.__rememberedObjects.indexOf(t.object);if(-1!==o){var i=n.__rememberedObjectIndecesToControllers[o];if(void 0===i&&(i={},n.__rememberedObjectIndecesToControllers[o]=i),i[t.property]=t,n.load&&n.load.remembered){var r=n.load.remembered,s=void 0;if(r[e.preset])s=r[e.preset];else{if(!r[Q])return;s=r[Q]}if(s[o]&&void 0!==s[o][t.property]){var a=s[o][t.property];t.initialValue=a,t.setValue(a)}}}}function de(e,t,n,o){if(void 0===t[n])throw new Error('Object "'+t+'" has no 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l=document.getElementById("dg-local-explain"),d=document.getElementById("dg-local-storage");document.getElementById("dg-save-locally").style.display="block","true"===localStorage.getItem(ce(e,"isLocal"))&&d.setAttribute("checked","checked"),_e(e,l),A.bind(d,"change",function(){e.useLocalStorage=!e.useLocalStorage,_e(e,l)})}var c=document.getElementById("dg-new-constructor");A.bind(c,"keydown",function(e){!e.metaKey||67!==e.which&&67!==e.keyCode||Z.hide()}),A.bind(n,"click",function(){c.innerHTML=JSON.stringify(e.getSaveObject(),void 0,2),Z.show(),c.focus(),c.select()}),A.bind(o,"click",function(){e.save()}),A.bind(r,"click",function(){var t=prompt("Enter a new preset name.");t&&e.saveAs(t)}),A.bind(s,"click",function(){e.revert()})}function pe(e){var t=void 0;function n(n){return n.preventDefault(),e.width+=t-n.clientX,e.onResize(),t=n.clientX,!1}function o(){A.removeClass(e.__closeButton,oe.CLASS_DRAG),A.unbind(window,"mousemove",n),A.unbind(window,"mouseup",o)}function r(i){return i.preventDefault(),t=i.clientX,A.addClass(e.__closeButton,oe.CLASS_DRAG),A.bind(window,"mousemove",n),A.bind(window,"mouseup",o),!1}e.__resize_handle=document.createElement("div"),i.extend(e.__resize_handle.style,{width:"6px",marginLeft:"-3px",height:"200px",cursor:"ew-resize",position:"absolute"}),A.bind(e.__resize_handle,"mousedown",r),A.bind(e.__closeButton,"mousedown",r),e.domElement.insertBefore(e.__resize_handle,e.domElement.firstElementChild)}function fe(e,t){e.domElement.style.width=t+"px",e.__save_row&&e.autoPlace&&(e.__save_row.style.width=t+"px"),e.__closeButton&&(e.__closeButton.style.width=t+"px")}function me(e,t){var n={};return i.each(e.__rememberedObjects,function(o,r){var s={},a=e.__rememberedObjectIndecesToControllers[r];i.each(a,function(e,n){s[n]=t?e.initialValue:e.getValue()}),n[r]=s}),n}function ge(e){for(var t=0;t<e.__preset_select.length;t++)e.__preset_select[t].value===e.preset&&(e.__preset_select.selectedIndex=t)}function 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de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
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0,exports.ShapeBufferGeometry=exports.Shape=exports.ShadowMaterial=exports.ShaderLib=exports.ShaderChunk=exports.SceneUtils=exports.Scene=exports.SRGB8_ALPHA8_ASTC_8x8_Format=exports.SRGB8_ALPHA8_ASTC_8x6_Format=exports.SRGB8_ALPHA8_ASTC_8x5_Format=exports.SRGB8_ALPHA8_ASTC_6x6_Format=exports.SRGB8_ALPHA8_ASTC_6x5_Format=exports.SRGB8_ALPHA8_ASTC_5x5_Format=exports.SRGB8_ALPHA8_ASTC_5x4_Format=exports.SRGB8_ALPHA8_ASTC_4x4_Format=exports.SRGB8_ALPHA8_ASTC_12x12_Format=exports.SRGB8_ALPHA8_ASTC_12x10_Format=exports.SRGB8_ALPHA8_ASTC_10x8_Format=exports.SRGB8_ALPHA8_ASTC_10x6_Format=exports.SRGB8_ALPHA8_ASTC_10x5_Format=exports.SRGB8_ALPHA8_ASTC_10x10_Format=exports.RingGeometry=exports.RingBufferGeometry=exports.ReverseSubtractEquation=exports.ReplaceStencilOp=exports.RepeatWrapping=exports.ReinhardToneMapping=exports.RedIntegerFormat=exports.RedFormat=exports.RectAreaLight=exports.Ray=exports.RawShaderMaterial=exports.RGIntegerFormat=exports.RGFormat=exports.RGB_S3TC_DXT1_Format=exports.RGB_PVRTC_4BPPV1_Format=exports.RGB_PVRTC_2BPPV1_Format=exports.RGB_ETC2_Format=exports.RGB_ETC1_Format=exports.RGBM7Encoding=exports.RGBM16Encoding=exports.RGBIntegerFormat=exports.RGBFormat=exports.RGBEFormat=exports.RGBEEncoding=exports.RGBDEncoding=exports.RGBA_S3TC_DXT5_Format=exports.RGBA_S3TC_DXT3_Format=exports.RGBA_S3TC_DXT1_Format=exports.RGBA_PVRTC_4BPPV1_Format=exports.RGBA_PVRTC_2BPPV1_Format=exports.RGBA_ETC2_EAC_Format=exports.RGBA_BPTC_Format=exports.RGBA_ASTC_8x8_Format=exports.RGBA_ASTC_8x6_Format=exports.RGBA_ASTC_8x5_Format=exports.RGBA_ASTC_6x6_Format=exports.RGBA_ASTC_6x5_Format=exports.RGBA_ASTC_5x5_Format=exports.RGBA_ASTC_5x4_Format=exports.RGBA_ASTC_4x4_Format=exports.RGBA_ASTC_12x12_Format=exports.RGBA_ASTC_12x10_Format=exports.RGBA_ASTC_10x8_Format=exports.RGBA_ASTC_10x6_Format=exports.RGBA_ASTC_10x5_Format=exports.RGBA_ASTC_10x10_Format=exports.RGBAIntegerFormat=exports.RGBAFormat=exports.RGBADepthPacking=exports.REVISION=exports.QuaternionKeyframeTrack=exports.Quaternion=exports.QuadraticBezierCurve3=exports.QuadraticBezierCurve=exports.PropertyMixer=exports.PositionalAudio=exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=exports.PolarGridHelper=exports.PointsMaterial=exports.PointLightHelper=exports.PointLight=exports.PlaneHelper=exports.PlaneGeometry=exports.PlaneBufferGeometry=exports.Plane=exports.Path=exports.PMREMGenerator=exports.PCFSoftShadowMap=exports.PCFShadowMap=exports.OrthographicCamera=exports.OneMinusSrcColorFactor=exports.OneMinusSrcAlphaFactor=exports.OneMinusDstColorFactor=exports.OneMinusDstAlphaFactor=exports.OneFactor=exports.OctahedronGeometry=exports.OctahedronBufferGeometry=exports.ObjectSpaceNormalMap=void 0,exports.sRGBEncoding=exports.ZeroStencilOp=exports.ZeroSlopeEnding=exports.ZeroFactor=exports.ZeroCurvatureEnding=exports.WrapAroundEnding=exports.WireframeGeometry=exports.WebGLRenderTarget=exports.WebGLMultisampleRenderTarget=exports.WebGLCubeRenderTarget=exports.WebGL1Renderer=exports.VideoTexture=exports.VertexColors=exports.VectorKeyframeTrack=exports.Vector4=exports.Vector3=exports.Vector2=exports.VSMShadowMap=exports.UnsignedShortType=exports.UnsignedShort565Type=exports.UnsignedShort5551Type=exports.UnsignedShort4444Type=exports.UnsignedIntType=exports.UnsignedInt248Type=exports.UnsignedByteType=exports.UniformsUtils=exports.UniformsLib=exports.Uniform=exports.UVMapping=exports.TubeGeometry=exports.TubeBufferGeometry=exports.TrianglesDrawMode=exports.TriangleStripDrawMode=exports.TriangleFanDrawMode=exports.Triangle=exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=exports.TorusGeometry=exports.TorusBufferGeometry=exports.Texture=exports.TextGeometry=exports.TextBufferGeometry=exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=exports.TangentSpaceNormalMap=exports.TOUCH=exports.SubtractiveBlending=exports.SubtractEquation=exports.StringKeyframeTrack=exports.StreamReadUsage=exports.StreamDrawUsage=exports.StreamCopyUsage=exports.StereoCamera=exports.StaticReadUsage=exports.StaticDrawUsage=exports.StaticCopyUsage=exports.SrcColorFactor=exports.SrcAlphaSaturateFactor=exports.SrcAlphaFactor=exports.SpriteMaterial=exports.Sprite=exports.SpotLightHelper=exports.SpotLight=exports.SplineCurve=exports.SphericalHarmonics3=exports.Spherical=exports.SphereGeometry=exports.SphereBufferGeometry=exports.Sphere=exports.SmoothShading=exports.SkeletonHelper=exports.Skeleton=exports.ShortType=exports.ShapeUtils=exports.ShapePath=exports.ShapeGeometry=void 0;const t="126";exports.REVISION="126";const e={LEFT:0,MIDDLE:1,RIGHT:2,ROTATE:0,DOLLY:1,PAN:2};exports.MOUSE=e;const n={ROTATE:0,PAN:1,DOLLY_PAN:2,DOLLY_ROTATE:3};exports.TOUCH=n;const r=0;exports.CullFaceNone=r;const i=1;exports.CullFaceBack=i;const s=2;exports.CullFaceFront=s;const o=3;exports.CullFaceFrontBack=3;const a=0;exports.BasicShadowMap=0;const l=1;exports.PCFShadowMap=l;const c=2;exports.PCFSoftShadowMap=c;const h=3;exports.VSMShadowMap=h;const u=0;exports.FrontSide=u;const p=1;exports.BackSide=p;const d=2;exports.DoubleSide=d;const m=1;exports.FlatShading=1;const f=2;exports.SmoothShading=2;const g=0;exports.NoBlending=g;const x=1;exports.NormalBlending=x;const v=2;exports.AdditiveBlending=v;const y=3;exports.SubtractiveBlending=y;const _=4;exports.MultiplyBlending=_;const b=5;exports.CustomBlending=b;const w=100;exports.AddEquation=w;const M=101;exports.SubtractEquation=M;const S=102;exports.ReverseSubtractEquation=S;const T=103;exports.MinEquation=T;const E=104;exports.MaxEquation=E;const A=200;exports.ZeroFactor=A;const L=201;exports.OneFactor=L;const R=202;exports.SrcColorFactor=R;const C=203;exports.OneMinusSrcColorFactor=C;const P=204;exports.SrcAlphaFactor=P;const D=205;exports.OneMinusSrcAlphaFactor=D;const I=206;exports.DstAlphaFactor=I;const B=207;exports.OneMinusDstAlphaFactor=B;const N=208;exports.DstColorFactor=N;const F=209;exports.OneMinusDstColorFactor=F;const O=210;exports.SrcAlphaSaturateFactor=O;const z=0;exports.NeverDepth=z;const G=1;exports.AlwaysDepth=G;const H=2;exports.LessDepth=H;const U=3;exports.LessEqualDepth=U;const k=4;exports.EqualDepth=k;const V=5;exports.GreaterEqualDepth=V;const W=6;exports.GreaterDepth=W;const j=7;exports.NotEqualDepth=j;const q=0;exports.MultiplyOperation=q;const X=1;exports.MixOperation=X;const Y=2;exports.AddOperation=Y;const Z=0;exports.NoToneMapping=Z;const J=1;exports.LinearToneMapping=J;const Q=2;exports.ReinhardToneMapping=Q;const K=3;exports.CineonToneMapping=K;const $=4;exports.ACESFilmicToneMapping=$;const tt=5;exports.CustomToneMapping=tt;const et=300;exports.UVMapping=et;const nt=301;exports.CubeReflectionMapping=nt;const rt=302;exports.CubeRefractionMapping=rt;const it=303;exports.EquirectangularReflectionMapping=it;const st=304;exports.EquirectangularRefractionMapping=st;const ot=306;exports.CubeUVReflectionMapping=ot;const at=307;exports.CubeUVRefractionMapping=at;const lt=1e3;exports.RepeatWrapping=lt;const ct=1001;exports.ClampToEdgeWrapping=ct;const ht=1002;exports.MirroredRepeatWrapping=ht;const ut=1003;exports.NearestFilter=ut;const pt=1004;exports.NearestMipmapNearestFilter=pt;const dt=1004;exports.NearestMipMapNearestFilter=1004;const mt=1005;exports.NearestMipmapLinearFilter=mt;const ft=1005;exports.NearestMipMapLinearFilter=1005;const gt=1006;exports.LinearFilter=gt;const xt=1007;exports.LinearMipmapNearestFilter=xt;const vt=1007;exports.LinearMipMapNearestFilter=1007;const yt=1008;exports.LinearMipmapLinearFilter=yt;const _t=1008;exports.LinearMipMapLinearFilter=1008;const bt=1009;exports.UnsignedByteType=bt;const wt=1010;exports.ByteType=wt;const Mt=1011;exports.ShortType=Mt;const St=1012;exports.UnsignedShortType=St;const Tt=1013;exports.IntType=Tt;const Et=1014;exports.UnsignedIntType=Et;const At=1015;exports.FloatType=At;const Lt=1016;exports.HalfFloatType=Lt;const Rt=1017;exports.UnsignedShort4444Type=Rt;const Ct=1018;exports.UnsignedShort5551Type=Ct;const Pt=1019;exports.UnsignedShort565Type=Pt;const Dt=1020;exports.UnsignedInt248Type=Dt;const It=1021;exports.AlphaFormat=It;const Bt=1022;exports.RGBFormat=Bt;const Nt=1023;exports.RGBAFormat=Nt;const Ft=1024;exports.LuminanceFormat=Ft;const Ot=1025;exports.LuminanceAlphaFormat=Ot;const zt=Nt;exports.RGBEFormat=zt;const Gt=1026;exports.DepthFormat=Gt;const Ht=1027;exports.DepthStencilFormat=Ht;const Ut=1028;exports.RedFormat=Ut;const kt=1029;exports.RedIntegerFormat=kt;const Vt=1030;exports.RGFormat=Vt;const Wt=1031;exports.RGIntegerFormat=Wt;const jt=1032;exports.RGBIntegerFormat=jt;const qt=1033;exports.RGBAIntegerFormat=qt;const Xt=33776;exports.RGB_S3TC_DXT1_Format=Xt;const Yt=33777;exports.RGBA_S3TC_DXT1_Format=Yt;const Zt=33778;exports.RGBA_S3TC_DXT3_Format=Zt;const Jt=33779;exports.RGBA_S3TC_DXT5_Format=Jt;const Qt=35840;exports.RGB_PVRTC_4BPPV1_Format=Qt;const Kt=35841;exports.RGB_PVRTC_2BPPV1_Format=Kt;const $t=35842;exports.RGBA_PVRTC_4BPPV1_Format=$t;const te=35843;exports.RGBA_PVRTC_2BPPV1_Format=te;const ee=36196;exports.RGB_ETC1_Format=ee;const ne=37492;exports.RGB_ETC2_Format=ne;const re=37496;exports.RGBA_ETC2_EAC_Format=re;const ie=37808;exports.RGBA_ASTC_4x4_Format=ie;const se=37809;exports.RGBA_ASTC_5x4_Format=se;const oe=37810;exports.RGBA_ASTC_5x5_Format=oe;const ae=37811;exports.RGBA_ASTC_6x5_Format=ae;const le=37812;exports.RGBA_ASTC_6x6_Format=le;const ce=37813;exports.RGBA_ASTC_8x5_Format=ce;const he=37814;exports.RGBA_ASTC_8x6_Format=he;const ue=37815;exports.RGBA_ASTC_8x8_Format=ue;const pe=37816;exports.RGBA_ASTC_10x5_Format=pe;const de=37817;exports.RGBA_ASTC_10x6_Format=de;const me=37818;exports.RGBA_ASTC_10x8_Format=me;const fe=37819;exports.RGBA_ASTC_10x10_Format=fe;const ge=37820;exports.RGBA_ASTC_12x10_Format=ge;const xe=37821;exports.RGBA_ASTC_12x12_Format=xe;const ve=36492;exports.RGBA_BPTC_Format=ve;const ye=37840;exports.SRGB8_ALPHA8_ASTC_4x4_Format=ye;const _e=37841;exports.SRGB8_ALPHA8_ASTC_5x4_Format=_e;const be=37842;exports.SRGB8_ALPHA8_ASTC_5x5_Format=be;const we=37843;exports.SRGB8_ALPHA8_ASTC_6x5_Format=we;const Me=37844;exports.SRGB8_ALPHA8_ASTC_6x6_Format=Me;const Se=37845;exports.SRGB8_ALPHA8_ASTC_8x5_Format=Se;const Te=37846;exports.SRGB8_ALPHA8_ASTC_8x6_Format=Te;const Ee=37847;exports.SRGB8_ALPHA8_ASTC_8x8_Format=Ee;const Ae=37848;exports.SRGB8_ALPHA8_ASTC_10x5_Format=Ae;const Le=37849;exports.SRGB8_ALPHA8_ASTC_10x6_Format=Le;const Re=37850;exports.SRGB8_ALPHA8_ASTC_10x8_Format=Re;const Ce=37851;exports.SRGB8_ALPHA8_ASTC_10x10_Format=Ce;const Pe=37852;exports.SRGB8_ALPHA8_ASTC_12x10_Format=Pe;const De=37853;exports.SRGB8_ALPHA8_ASTC_12x12_Format=De;const Ie=2200;exports.LoopOnce=Ie;const Be=2201;exports.LoopRepeat=Be;const Ne=2202;exports.LoopPingPong=Ne;const Fe=2300;exports.InterpolateDiscrete=Fe;const Oe=2301;exports.InterpolateLinear=Oe;const ze=2302;exports.InterpolateSmooth=ze;const Ge=2400;exports.ZeroCurvatureEnding=Ge;const He=2401;exports.ZeroSlopeEnding=He;const Ue=2402;exports.WrapAroundEnding=Ue;const ke=2500;exports.NormalAnimationBlendMode=ke;const Ve=2501;exports.AdditiveAnimationBlendMode=Ve;const We=0;exports.TrianglesDrawMode=0;const je=1;exports.TriangleStripDrawMode=1;const qe=2;exports.TriangleFanDrawMode=2;const Xe=3e3;exports.LinearEncoding=Xe;const Ye=3001;exports.sRGBEncoding=Ye;const Ze=3007;exports.GammaEncoding=Ze;const Je=3002;exports.RGBEEncoding=Je;const Qe=3003;exports.LogLuvEncoding=Qe;const Ke=3004;exports.RGBM7Encoding=Ke;const $e=3005;exports.RGBM16Encoding=$e;const tn=3006;exports.RGBDEncoding=tn;const en=3200;exports.BasicDepthPacking=en;const nn=3201;exports.RGBADepthPacking=nn;const rn=0;exports.TangentSpaceNormalMap=rn;const sn=1;exports.ObjectSpaceNormalMap=sn;const on=0;exports.ZeroStencilOp=0;const an=7680;exports.KeepStencilOp=an;const ln=7681;exports.ReplaceStencilOp=7681;const cn=7682;exports.IncrementStencilOp=7682;const hn=7683;exports.DecrementStencilOp=7683;const un=34055;exports.IncrementWrapStencilOp=34055;const pn=34056;exports.DecrementWrapStencilOp=34056;const dn=5386;exports.InvertStencilOp=5386;const mn=512;exports.NeverStencilFunc=512;const fn=513;exports.LessStencilFunc=513;const gn=514;exports.EqualStencilFunc=514;const xn=515;exports.LessEqualStencilFunc=515;const vn=516;exports.GreaterStencilFunc=516;const yn=517;exports.NotEqualStencilFunc=517;const _n=518;exports.GreaterEqualStencilFunc=518;const bn=519;exports.AlwaysStencilFunc=bn;const wn=35044;exports.StaticDrawUsage=wn;const Mn=35048;exports.DynamicDrawUsage=Mn;const Sn=35040;exports.StreamDrawUsage=35040;const Tn=35045;exports.StaticReadUsage=35045;const En=35049;exports.DynamicReadUsage=35049;const An=35041;exports.StreamReadUsage=35041;const Ln=35046;exports.StaticCopyUsage=35046;const Rn=35050;exports.DynamicCopyUsage=35050;const Cn=35042;exports.StreamCopyUsage=35042;const Pn="100";exports.GLSL1="100";const Dn="300 es";function In(){}exports.GLSL3=Dn,Object.assign(In.prototype,{addEventListener:function(t,e){void 0===this._listeners&&(this._listeners={});const n=this._listeners;void 0===n[t]&&(n[t]=[]),-1===n[t].indexOf(e)&&n[t].push(e)},hasEventListener:function(t,e){if(void 0===this._listeners)return!1;const n=this._listeners;return void 0!==n[t]&&-1!==n[t].indexOf(e)},removeEventListener:function(t,e){if(void 0===this._listeners)return;const n=this._listeners[t];if(void 0!==n){const t=n.indexOf(e);-1!==t&&n.splice(t,1)}},dispatchEvent:function(t){if(void 0===this._listeners)return;const e=this._listeners[t.type];if(void 0!==e){t.target=this;const n=e.slice(0);for(let e=0,r=n.length;e<r;e++)n[e].call(this,t)}}});const Bn=[];for(let yx=0;yx<256;yx++)Bn[yx]=(yx<16?"0":"")+yx.toString(16);let Nn=1234567;const Fn={DEG2RAD:Math.PI/180,RAD2DEG:180/Math.PI,generateUUID:function(){const t=4294967295*Math.random()|0,e=4294967295*Math.random()|0,n=4294967295*Math.random()|0,r=4294967295*Math.random()|0;return(Bn[255&t]+Bn[t>>8&255]+Bn[t>>16&255]+Bn[t>>24&255]+"-"+Bn[255&e]+Bn[e>>8&255]+"-"+Bn[e>>16&15|64]+Bn[e>>24&255]+"-"+Bn[63&n|128]+Bn[n>>8&255]+"-"+Bn[n>>16&255]+Bn[n>>24&255]+Bn[255&r]+Bn[r>>8&255]+Bn[r>>16&255]+Bn[r>>24&255]).toUpperCase()},clamp:function(t,e,n){return Math.max(e,Math.min(n,t))},euclideanModulo:function(t,e){return(t%e+e)%e},mapLinear:function(t,e,n,r,i){return r+(t-e)*(i-r)/(n-e)},lerp:function(t,e,n){return(1-n)*t+n*e},damp:function(t,e,n,r){return Fn.lerp(t,e,1-Math.exp(-n*r))},pingpong:function(t,e=1){return e-Math.abs(Fn.euclideanModulo(t,2*e)-e)},smoothstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*(3-2*t)},smootherstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*t*(t*(6*t-15)+10)},randInt:function(t,e){return t+Math.floor(Math.random()*(e-t+1))},randFloat:function(t,e){return t+Math.random()*(e-t)},randFloatSpread:function(t){return t*(.5-Math.random())},seededRandom:function(t){return void 0!==t&&(Nn=t%2147483647),((Nn=16807*Nn%2147483647)-1)/2147483646},degToRad:function(t){return t*Fn.DEG2RAD},radToDeg:function(t){return t*Fn.RAD2DEG},isPowerOfTwo:function(t){return 0==(t&t-1)&&0!==t},ceilPowerOfTwo:function(t){return Math.pow(2,Math.ceil(Math.log(t)/Math.LN2))},floorPowerOfTwo:function(t){return Math.pow(2,Math.floor(Math.log(t)/Math.LN2))},setQuaternionFromProperEuler:function(t,e,n,r,i){const s=Math.cos,o=Math.sin,a=s(n/2),l=o(n/2),c=s((e+r)/2),h=o((e+r)/2),u=s((e-r)/2),p=o((e-r)/2),d=s((r-e)/2),m=o((r-e)/2);switch(i){case"XYX":t.set(a*h,l*u,l*p,a*c);break;case"YZY":t.set(l*p,a*h,l*u,a*c);break;case"ZXZ":t.set(l*u,l*p,a*h,a*c);break;case"XZX":t.set(a*h,l*m,l*d,a*c);break;case"YXY":t.set(l*d,a*h,l*m,a*c);break;case"ZYZ":t.set(l*m,l*d,a*h,a*c);break;default:console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+i)}}};exports.MathUtils=exports.Math=Fn;class On{constructor(t=0,e=0){this.x=t,this.y=e}get width(){return this.x}set width(t){this.x=t}get height(){return this.y}set height(t){this.y=t}set(t,e){return this.x=t,this.y=e,this}setScalar(t){return this.x=t,this.y=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y)}copy(t){return this.x=t.x,this.y=t.y,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this)}addScalar(t){return this.x+=t,this.y+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this)}subScalar(t){return this.x-=t,this.y-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this}multiply(t){return this.x*=t.x,this.y*=t.y,this}multiplyScalar(t){return this.x*=t,this.y*=t,this}divide(t){return this.x/=t.x,this.y/=t.y,this}divideScalar(t){return this.multiplyScalar(1/t)}applyMatrix3(t){const e=this.x,n=this.y,r=t.elements;return this.x=r[0]*e+r[3]*n+r[6],this.y=r[1]*e+r[4]*n+r[7],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this}negate(){return this.x=-this.x,this.y=-this.y,this}dot(t){return this.x*t.x+this.y*t.y}cross(t){return this.x*t.y-this.y*t.x}lengthSq(){return this.x*this.x+this.y*this.y}length(){return Math.sqrt(this.x*this.x+this.y*this.y)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)}normalize(){return this.divideScalar(this.length()||1)}angle(){return Math.atan2(-this.y,-this.x)+Math.PI}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y;return e*e+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this}equals(t){return t.x===this.x&&t.y===this.y}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this}rotateAround(t,e){const n=Math.cos(e),r=Math.sin(e),i=this.x-t.x,s=this.y-t.y;return this.x=i*n-s*r+t.x,this.y=i*r+s*n+t.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}}exports.Vector2=On,On.prototype.isVector2=!0;class zn{constructor(){this.elements=[1,0,0,0,1,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l){const c=this.elements;return c[0]=t,c[1]=r,c[2]=o,c[3]=e,c[4]=i,c[5]=a,c[6]=n,c[7]=s,c[8]=l,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],this}extractBasis(t,e,n){return t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(t){const e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[3],a=n[6],l=n[1],c=n[4],h=n[7],u=n[2],p=n[5],d=n[8],m=r[0],f=r[3],g=r[6],x=r[1],v=r[4],y=r[7],_=r[2],b=r[5],w=r[8];return i[0]=s*m+o*x+a*_,i[3]=s*f+o*v+a*b,i[6]=s*g+o*y+a*w,i[1]=l*m+c*x+h*_,i[4]=l*f+c*v+h*b,i[7]=l*g+c*y+h*w,i[2]=u*m+p*x+d*_,i[5]=u*f+p*v+d*b,i[8]=u*g+p*y+d*w,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8];return e*s*c-e*o*l-n*i*c+n*o*a+r*i*l-r*s*a}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=c*s-o*l,u=o*a-c*i,p=l*i-s*a,d=e*h+n*u+r*p;if(0===d)return this.set(0,0,0,0,0,0,0,0,0);const m=1/d;return t[0]=h*m,t[1]=(r*l-c*n)*m,t[2]=(o*n-r*s)*m,t[3]=u*m,t[4]=(c*e-r*a)*m,t[5]=(r*i-o*e)*m,t[6]=p*m,t[7]=(n*a-l*e)*m,t[8]=(s*e-n*i)*m,this}transpose(){let t;const e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){const e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,n,r,i,s,o){const a=Math.cos(i),l=Math.sin(i);return this.set(n*a,n*l,-n*(a*s+l*o)+s+t,-r*l,r*a,-r*(-l*s+a*o)+o+e,0,0,1),this}scale(t,e){const n=this.elements;return n[0]*=t,n[3]*=t,n[6]*=t,n[1]*=e,n[4]*=e,n[7]*=e,this}rotate(t){const e=Math.cos(t),n=Math.sin(t),r=this.elements,i=r[0],s=r[3],o=r[6],a=r[1],l=r[4],c=r[7];return r[0]=e*i+n*a,r[3]=e*s+n*l,r[6]=e*o+n*c,r[1]=-n*i+e*a,r[4]=-n*s+e*l,r[7]=-n*o+e*c,this}translate(t,e){const n=this.elements;return n[0]+=t*n[2],n[3]+=t*n[5],n[6]+=t*n[8],n[1]+=e*n[2],n[4]+=e*n[5],n[7]+=e*n[8],this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<9;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<9;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t}clone(){return(new this.constructor).fromArray(this.elements)}}let Gn;exports.Matrix3=zn,zn.prototype.isMatrix3=!0;const Hn={getDataURL:function(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===Gn&&(Gn=document.createElementNS("http://www.w3.org/1999/xhtml","canvas")),Gn.width=t.width,Gn.height=t.height;const n=Gn.getContext("2d");t instanceof ImageData?n.putImageData(t,0,0):n.drawImage(t,0,0,t.width,t.height),e=Gn}return e.width>2048||e.height>2048?e.toDataURL("image/jpeg",.6):e.toDataURL("image/png")}};exports.ImageUtils=Hn;let Un=0;class kn extends In{constructor(t=kn.DEFAULT_IMAGE,e=kn.DEFAULT_MAPPING,n=ct,r=ct,i=gt,s=yt,o=Nt,a=bt,l=1,c=Xe){super(),Object.defineProperty(this,"id",{value:Un++}),this.uuid=Fn.generateUUID(),this.name="",this.image=t,this.mipmaps=[],this.mapping=e,this.wrapS=n,this.wrapT=r,this.magFilter=i,this.minFilter=s,this.anisotropy=l,this.format=o,this.internalFormat=null,this.type=a,this.offset=new On(0,0),this.repeat=new On(1,1),this.center=new On(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new zn,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.encoding=c,this.version=0,this.onUpdate=null}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.image=t.image,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.encoding=t.encoding,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const n={metadata:{version:4.5,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,type:this.type,encoding:this.encoding,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(void 0!==this.image){const r=this.image;if(void 0===r.uuid&&(r.uuid=Fn.generateUUID()),!e&&void 0===t.images[r.uuid]){let e;if(Array.isArray(r)){e=[];for(let t=0,n=r.length;t<n;t++)r[t].isDataTexture?e.push(Vn(r[t].image)):e.push(Vn(r[t]))}else e=Vn(r);t.images[r.uuid]={uuid:r.uuid,url:e}}n.image=r.uuid}return e||(t.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==et)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case lt:t.x=t.x-Math.floor(t.x);break;case ct:t.x=t.x<0?0:1;break;case ht:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case lt:t.y=t.y-Math.floor(t.y);break;case ct:t.y=t.y<0?0:1;break;case ht:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&this.version++}}function Vn(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?Hn.getDataURL(t):t.data?{data:Array.prototype.slice.call(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}exports.Texture=kn,kn.DEFAULT_IMAGE=void 0,kn.DEFAULT_MAPPING=et,kn.prototype.isTexture=!0;class Wn{constructor(t=0,e=0,n=0,r=1){this.x=t,this.y=e,this.z=n,this.w=r}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,n,r){return this.x=t,this.y=e,this.z=n,this.w=r,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=this.w,s=t.elements;return this.x=s[0]*e+s[4]*n+s[8]*r+s[12]*i,this.y=s[1]*e+s[5]*n+s[9]*r+s[13]*i,this.z=s[2]*e+s[6]*n+s[10]*r+s[14]*i,this.w=s[3]*e+s[7]*n+s[11]*r+s[15]*i,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,n,r,i;const s=t.elements,o=s[0],a=s[4],l=s[8],c=s[1],h=s[5],u=s[9],p=s[2],d=s[6],m=s[10];if(Math.abs(a-c)<.01&&Math.abs(l-p)<.01&&Math.abs(u-d)<.01){if(Math.abs(a+c)<.1&&Math.abs(l+p)<.1&&Math.abs(u+d)<.1&&Math.abs(o+h+m-3)<.1)return this.set(1,0,0,0),this;e=Math.PI;const t=(o+1)/2,s=(h+1)/2,f=(m+1)/2,g=(a+c)/4,x=(l+p)/4,v=(u+d)/4;return t>s&&t>f?t<.01?(n=0,r=.707106781,i=.707106781):(r=g/(n=Math.sqrt(t)),i=x/n):s>f?s<.01?(n=.707106781,r=0,i=.707106781):(n=g/(r=Math.sqrt(s)),i=v/r):f<.01?(n=.707106781,r=.707106781,i=0):(n=x/(i=Math.sqrt(f)),r=v/i),this.set(n,r,i,e),this}let f=Math.sqrt((d-u)*(d-u)+(l-p)*(l-p)+(c-a)*(c-a));return Math.abs(f)<.001&&(f=1),this.x=(d-u)/f,this.y=(l-p)/f,this.z=(c-a)/f,this.w=Math.acos((o+h+m-1)/2),this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this.w=Math.max(t.w,Math.min(e.w,this.w)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this.w=Math.max(t,Math.min(e,this.w)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this.w=this.w<0?Math.ceil(this.w):Math.floor(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this.w=t.w+(e.w-t.w)*n,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}}exports.Vector4=Wn,Wn.prototype.isVector4=!0;class jn extends In{constructor(t,e,n){super(),this.width=t,this.height=e,this.depth=1,this.scissor=new Wn(0,0,t,e),this.scissorTest=!1,this.viewport=new Wn(0,0,t,e),n=n||{},this.texture=new kn(void 0,n.mapping,n.wrapS,n.wrapT,n.magFilter,n.minFilter,n.format,n.type,n.anisotropy,n.encoding),this.texture.image={},this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=1,this.texture.generateMipmaps=void 0!==n.generateMipmaps&&n.generateMipmaps,this.texture.minFilter=void 0!==n.minFilter?n.minFilter:gt,this.depthBuffer=void 0===n.depthBuffer||n.depthBuffer,this.stencilBuffer=void 0!==n.stencilBuffer&&n.stencilBuffer,this.depthTexture=void 0!==n.depthTexture?n.depthTexture:null}setTexture(t){t.image={width:this.width,height:this.height,depth:this.depth},this.texture=t}setSize(t,e,n=1){this.width===t&&this.height===e&&this.depth===n||(this.width=t,this.height=e,this.depth=n,this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=n,this.dispose()),this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.width=t.width,this.height=t.height,this.depth=t.depth,this.viewport.copy(t.viewport),this.texture=t.texture.clone(),this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.depthTexture=t.depthTexture,this}dispose(){this.dispatchEvent({type:"dispose"})}}exports.WebGLRenderTarget=jn,jn.prototype.isWebGLRenderTarget=!0;class qn extends jn{constructor(t,e,n){super(t,e,n),this.samples=4}copy(t){return super.copy.call(this,t),this.samples=t.samples,this}}exports.WebGLMultisampleRenderTarget=qn,qn.prototype.isWebGLMultisampleRenderTarget=!0;class Xn{constructor(t=0,e=0,n=0,r=1){this._x=t,this._y=e,this._z=n,this._w=r}static slerp(t,e,n,r){return n.copy(t).slerp(e,r)}static slerpFlat(t,e,n,r,i,s,o){let a=n[r+0],l=n[r+1],c=n[r+2],h=n[r+3];const u=i[s+0],p=i[s+1],d=i[s+2],m=i[s+3];if(0===o)return t[e+0]=a,t[e+1]=l,t[e+2]=c,void(t[e+3]=h);if(1===o)return t[e+0]=u,t[e+1]=p,t[e+2]=d,void(t[e+3]=m);if(h!==m||a!==u||l!==p||c!==d){let t=1-o;const e=a*u+l*p+c*d+h*m,n=e>=0?1:-1,r=1-e*e;if(r>Number.EPSILON){const i=Math.sqrt(r),s=Math.atan2(i,e*n);t=Math.sin(t*s)/i,o=Math.sin(o*s)/i}const i=o*n;if(a=a*t+u*i,l=l*t+p*i,c=c*t+d*i,h=h*t+m*i,t===1-o){const t=1/Math.sqrt(a*a+l*l+c*c+h*h);a*=t,l*=t,c*=t,h*=t}}t[e]=a,t[e+1]=l,t[e+2]=c,t[e+3]=h}static multiplyQuaternionsFlat(t,e,n,r,i,s){const o=n[r],a=n[r+1],l=n[r+2],c=n[r+3],h=i[s],u=i[s+1],p=i[s+2],d=i[s+3];return t[e]=o*d+c*h+a*p-l*u,t[e+1]=a*d+c*u+l*h-o*p,t[e+2]=l*d+c*p+o*u-a*h,t[e+3]=c*d-o*h-a*u-l*p,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._w=r,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e){if(!t||!t.isEuler)throw new Error("THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.");const n=t._x,r=t._y,i=t._z,s=t._order,o=Math.cos,a=Math.sin,l=o(n/2),c=o(r/2),h=o(i/2),u=a(n/2),p=a(r/2),d=a(i/2);switch(s){case"XYZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"YXZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"ZXY":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"ZYX":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"YZX":this._x=u*c*h+l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h-u*p*d;break;case"XZY":this._x=u*c*h-l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h+u*p*d;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)}return!1!==e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const n=e/2,r=Math.sin(n);return this._x=t.x*r,this._y=t.y*r,this._z=t.z*r,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,n=e[0],r=e[4],i=e[8],s=e[1],o=e[5],a=e[9],l=e[2],c=e[6],h=e[10],u=n+o+h;if(u>0){const t=.5/Math.sqrt(u+1);this._w=.25/t,this._x=(c-a)*t,this._y=(i-l)*t,this._z=(s-r)*t}else if(n>o&&n>h){const t=2*Math.sqrt(1+n-o-h);this._w=(c-a)/t,this._x=.25*t,this._y=(r+s)/t,this._z=(i+l)/t}else if(o>h){const t=2*Math.sqrt(1+o-n-h);this._w=(i-l)/t,this._x=(r+s)/t,this._y=.25*t,this._z=(a+c)/t}else{const t=2*Math.sqrt(1+h-n-o);this._w=(s-r)/t,this._x=(i+l)/t,this._y=(a+c)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let n=t.dot(e)+1;return n<1e-6?(n=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=n):(this._x=0,this._y=-t.z,this._z=t.y,this._w=n)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=n),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(Fn.clamp(this.dot(t),-1,1)))}rotateTowards(t,e){const n=this.angleTo(t);if(0===n)return this;const r=Math.min(1,e/n);return this.slerp(t,r),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t,e){return void 0!==e?(console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead."),this.multiplyQuaternions(t,e)):this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const n=t._x,r=t._y,i=t._z,s=t._w,o=e._x,a=e._y,l=e._z,c=e._w;return this._x=n*c+s*o+r*l-i*a,this._y=r*c+s*a+i*o-n*l,this._z=i*c+s*l+n*a-r*o,this._w=s*c-n*o-r*a-i*l,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const n=this._x,r=this._y,i=this._z,s=this._w;let o=s*t._w+n*t._x+r*t._y+i*t._z;if(o<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,o=-o):this.copy(t),o>=1)return this._w=s,this._x=n,this._y=r,this._z=i,this;const a=1-o*o;if(a<=Number.EPSILON){const t=1-e;return this._w=t*s+e*this._w,this._x=t*n+e*this._x,this._y=t*r+e*this._y,this._z=t*i+e*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(a),c=Math.atan2(l,o),h=Math.sin((1-e)*c)/l,u=Math.sin(e*c)/l;return this._w=s*h+this._w*u,this._x=n*h+this._x*u,this._y=r*h+this._y*u,this._z=i*h+this._z*u,this._onChangeCallback(),this}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Quaternion=Xn,Xn.prototype.isQuaternion=!0;class Yn{constructor(t=0,e=0,n=0){this.x=t,this.y=e,this.z=n}set(t,e,n){return void 0===n&&(n=this.z),this.x=t,this.y=e,this.z=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(t,e)):(this.x*=t.x,this.y*=t.y,this.z*=t.z,this)}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return t&&t.isEuler||console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order."),this.applyQuaternion(Jn.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(Jn.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[3]*n+i[6]*r,this.y=i[1]*e+i[4]*n+i[7]*r,this.z=i[2]*e+i[5]*n+i[8]*r,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=t.elements,s=1/(i[3]*e+i[7]*n+i[11]*r+i[15]);return this.x=(i[0]*e+i[4]*n+i[8]*r+i[12])*s,this.y=(i[1]*e+i[5]*n+i[9]*r+i[13])*s,this.z=(i[2]*e+i[6]*n+i[10]*r+i[14])*s,this}applyQuaternion(t){const e=this.x,n=this.y,r=this.z,i=t.x,s=t.y,o=t.z,a=t.w,l=a*e+s*r-o*n,c=a*n+o*e-i*r,h=a*r+i*n-s*e,u=-i*e-s*n-o*r;return this.x=l*a+u*-i+c*-o-h*-s,this.y=c*a+u*-s+h*-i-l*-o,this.z=h*a+u*-o+l*-s-c*-i,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[4]*n+i[8]*r,this.y=i[1]*e+i[5]*n+i[9]*r,this.z=i[2]*e+i[6]*n+i[10]*r,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this}cross(t,e){return void 0!==e?(console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(t,e)):this.crossVectors(this,t)}crossVectors(t,e){const n=t.x,r=t.y,i=t.z,s=e.x,o=e.y,a=e.z;return this.x=r*a-i*o,this.y=i*s-n*a,this.z=n*o-r*s,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const n=t.dot(this)/e;return this.copy(t).multiplyScalar(n)}projectOnPlane(t){return Zn.copy(this).projectOnVector(t),this.sub(Zn)}reflect(t){return this.sub(Zn.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const n=this.dot(t)/e;return Math.acos(Fn.clamp(n,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y,r=this.z-t.z;return e*e+n*n+r*r}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,n){const r=Math.sin(e)*t;return this.x=r*Math.sin(n),this.y=Math.cos(e)*t,this.z=r*Math.cos(n),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,n){return this.x=t*Math.sin(e),this.y=n,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),n=this.setFromMatrixColumn(t,1).length(),r=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=n,this.z=r,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}}exports.Vector3=Yn,Yn.prototype.isVector3=!0;const Zn=new Yn,Jn=new Xn;class Qn{constructor(t=new Yn(1/0,1/0,1/0),e=new Yn(-1/0,-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.length;a<l;a+=3){const l=t[a],c=t[a+1],h=t[a+2];l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromBufferAttribute(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.count;a<l;a++){const l=t.getX(a),c=t.getY(a),h=t.getZ(a);l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=$n.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}setFromObject(t){return this.makeEmpty(),this.expandByObject(t)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return void 0===t&&(console.warn("THREE.Box3: .getCenter() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box3: .getSize() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t){t.updateWorldMatrix(!1,!1);const e=t.geometry;void 0!==e&&(null===e.boundingBox&&e.computeBoundingBox(),tr.copy(e.boundingBox),tr.applyMatrix4(t.matrixWorld),this.union(tr));const n=t.children;for(let r=0,i=n.length;r<i;r++)this.expandByObject(n[r]);return this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y||t.z<this.min.z||t.z>this.max.z)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box3: .getParameter() target is now required"),e=new Yn),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y||t.max.z<this.min.z||t.min.z>this.max.z)}intersectsSphere(t){return this.clampPoint(t.center,$n),$n.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,n;return t.normal.x>0?(e=t.normal.x*this.min.x,n=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,n=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,n+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,n+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,n+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,n+=t.normal.z*this.min.z),e<=-t.constant&&n>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(ar),lr.subVectors(this.max,ar),er.subVectors(t.a,ar),nr.subVectors(t.b,ar),rr.subVectors(t.c,ar),ir.subVectors(nr,er),sr.subVectors(rr,nr),or.subVectors(er,rr);let e=[0,-ir.z,ir.y,0,-sr.z,sr.y,0,-or.z,or.y,ir.z,0,-ir.x,sr.z,0,-sr.x,or.z,0,-or.x,-ir.y,ir.x,0,-sr.y,sr.x,0,-or.y,or.x,0];return!!ur(e,er,nr,rr,lr)&&(!!ur(e=[1,0,0,0,1,0,0,0,1],er,nr,rr,lr)&&(cr.crossVectors(ir,sr),ur(e=[cr.x,cr.y,cr.z],er,nr,rr,lr)))}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box3: .clampPoint() target is now required"),e=new Yn),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return $n.copy(t).clamp(this.min,this.max).sub(t).length()}getBoundingSphere(t){return void 0===t&&console.error("THREE.Box3: .getBoundingSphere() target is now required"),this.getCenter(t.center),t.radius=.5*this.getSize($n).length(),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()?this:(Kn[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),Kn[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),Kn[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),Kn[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),Kn[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),Kn[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),Kn[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),Kn[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(Kn),this)}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box3=Qn,Qn.prototype.isBox3=!0;const Kn=[new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn],$n=new Yn,tr=new Qn,er=new Yn,nr=new Yn,rr=new Yn,ir=new Yn,sr=new Yn,or=new Yn,ar=new Yn,lr=new Yn,cr=new Yn,hr=new Yn;function ur(t,e,n,r,i){for(let s=0,o=t.length-3;s<=o;s+=3){hr.fromArray(t,s);const o=i.x*Math.abs(hr.x)+i.y*Math.abs(hr.y)+i.z*Math.abs(hr.z),a=e.dot(hr),l=n.dot(hr),c=r.dot(hr);if(Math.max(-Math.max(a,l,c),Math.min(a,l,c))>o)return!1}return!0}const pr=new Qn;class dr{constructor(t=new Yn,e=-1){this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const n=this.center;void 0!==e?n.copy(e):pr.setFromPoints(t).getCenter(n);let r=0;for(let i=0,s=t.length;i<s;i++)r=Math.max(r,n.distanceToSquared(t[i]));return this.radius=Math.sqrt(r),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const n=this.center.distanceToSquared(t);return void 0===e&&(console.warn("THREE.Sphere: .clampPoint() target is now required"),e=new Yn),e.copy(t),n>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return void 0===t&&(console.warn("THREE.Sphere: .getBoundingBox() target is now required"),t=new Qn),this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}exports.Sphere=dr;const mr=new Yn,fr=new Yn,gr=new Yn,xr=new Yn,vr=new Yn,yr=new Yn,_r=new Yn;class br{constructor(t=new Yn,e=new Yn(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return void 0===e&&(console.warn("THREE.Ray: .at() target is now required"),e=new Yn),e.copy(this.direction).multiplyScalar(t).add(this.origin)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,mr)),this}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Ray: .closestPointToPoint() target is now required"),e=new Yn),e.subVectors(t,this.origin);const n=e.dot(this.direction);return n<0?e.copy(this.origin):e.copy(this.direction).multiplyScalar(n).add(this.origin)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=mr.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(mr.copy(this.direction).multiplyScalar(e).add(this.origin),mr.distanceToSquared(t))}distanceSqToSegment(t,e,n,r){fr.copy(t).add(e).multiplyScalar(.5),gr.copy(e).sub(t).normalize(),xr.copy(this.origin).sub(fr);const i=.5*t.distanceTo(e),s=-this.direction.dot(gr),o=xr.dot(this.direction),a=-xr.dot(gr),l=xr.lengthSq(),c=Math.abs(1-s*s);let h,u,p,d;if(c>0)if(u=s*o-a,d=i*c,(h=s*a-o)>=0)if(u>=-d)if(u<=d){const t=1/c;p=(h*=t)*(h+s*(u*=t)+2*o)+u*(s*h+u+2*a)+l}else u=i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u=-i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u<=-d?p=-(h=Math.max(0,-(-s*i+o)))*h+(u=h>0?-i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l:u<=d?(h=0,p=(u=Math.min(Math.max(-i,-a),i))*(u+2*a)+l):p=-(h=Math.max(0,-(s*i+o)))*h+(u=h>0?i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l;else u=s>0?-i:i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;return n&&n.copy(this.direction).multiplyScalar(h).add(this.origin),r&&r.copy(gr).multiplyScalar(u).add(fr),p}intersectSphere(t,e){mr.subVectors(t.center,this.origin);const n=mr.dot(this.direction),r=mr.dot(mr)-n*n,i=t.radius*t.radius;if(r>i)return null;const s=Math.sqrt(i-r),o=n-s,a=n+s;return o<0&&a<0?null:o<0?this.at(a,e):this.at(o,e)}intersectsSphere(t){return this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){const e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(t.normal)+t.constant)/e;return n>=0?n:null}intersectPlane(t,e){const n=this.distanceToPlane(t);return null===n?null:this.at(n,e)}intersectsPlane(t){const e=t.distanceToPoint(this.origin);return 0===e||t.normal.dot(this.direction)*e<0}intersectBox(t,e){let n,r,i,s,o,a;const l=1/this.direction.x,c=1/this.direction.y,h=1/this.direction.z,u=this.origin;return l>=0?(n=(t.min.x-u.x)*l,r=(t.max.x-u.x)*l):(n=(t.max.x-u.x)*l,r=(t.min.x-u.x)*l),c>=0?(i=(t.min.y-u.y)*c,s=(t.max.y-u.y)*c):(i=(t.max.y-u.y)*c,s=(t.min.y-u.y)*c),n>s||i>r?null:((i>n||n!=n)&&(n=i),(s<r||r!=r)&&(r=s),h>=0?(o=(t.min.z-u.z)*h,a=(t.max.z-u.z)*h):(o=(t.max.z-u.z)*h,a=(t.min.z-u.z)*h),n>a||o>r?null:((o>n||n!=n)&&(n=o),(a<r||r!=r)&&(r=a),r<0?null:this.at(n>=0?n:r,e)))}intersectsBox(t){return null!==this.intersectBox(t,mr)}intersectTriangle(t,e,n,r,i){vr.subVectors(e,t),yr.subVectors(n,t),_r.crossVectors(vr,yr);let s,o=this.direction.dot(_r);if(o>0){if(r)return null;s=1}else{if(!(o<0))return null;s=-1,o=-o}xr.subVectors(this.origin,t);const a=s*this.direction.dot(yr.crossVectors(xr,yr));if(a<0)return null;const l=s*this.direction.dot(vr.cross(xr));if(l<0)return null;if(a+l>o)return null;const c=-s*xr.dot(_r);return c<0?null:this.at(c/o,i)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}exports.Ray=br;class wr{constructor(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l,c,h,u,p,d,m,f){const g=this.elements;return g[0]=t,g[4]=e,g[8]=n,g[12]=r,g[1]=i,g[5]=s,g[9]=o,g[13]=a,g[2]=l,g[6]=c,g[10]=h,g[14]=u,g[3]=p,g[7]=d,g[11]=m,g[15]=f,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new wr).fromArray(this.elements)}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],e[9]=n[9],e[10]=n[10],e[11]=n[11],e[12]=n[12],e[13]=n[13],e[14]=n[14],e[15]=n[15],this}copyPosition(t){const e=this.elements,n=t.elements;return e[12]=n[12],e[13]=n[13],e[14]=n[14],this}setFromMatrix3(t){const e=t.elements;return this.set(e[0],e[3],e[6],0,e[1],e[4],e[7],0,e[2],e[5],e[8],0,0,0,0,1),this}extractBasis(t,e,n){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(t,e,n){return this.set(t.x,e.x,n.x,0,t.y,e.y,n.y,0,t.z,e.z,n.z,0,0,0,0,1),this}extractRotation(t){const e=this.elements,n=t.elements,r=1/Mr.setFromMatrixColumn(t,0).length(),i=1/Mr.setFromMatrixColumn(t,1).length(),s=1/Mr.setFromMatrixColumn(t,2).length();return e[0]=n[0]*r,e[1]=n[1]*r,e[2]=n[2]*r,e[3]=0,e[4]=n[4]*i,e[5]=n[5]*i,e[6]=n[6]*i,e[7]=0,e[8]=n[8]*s,e[9]=n[9]*s,e[10]=n[10]*s,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromEuler(t){t&&t.isEuler||console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.");const e=this.elements,n=t.x,r=t.y,i=t.z,s=Math.cos(n),o=Math.sin(n),a=Math.cos(r),l=Math.sin(r),c=Math.cos(i),h=Math.sin(i);if("XYZ"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=-a*h,e[8]=l,e[1]=n+r*l,e[5]=t-i*l,e[9]=-o*a,e[2]=i-t*l,e[6]=r+n*l,e[10]=s*a}else if("YXZ"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t+i*o,e[4]=r*o-n,e[8]=s*l,e[1]=s*h,e[5]=s*c,e[9]=-o,e[2]=n*o-r,e[6]=i+t*o,e[10]=s*a}else if("ZXY"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t-i*o,e[4]=-s*h,e[8]=r+n*o,e[1]=n+r*o,e[5]=s*c,e[9]=i-t*o,e[2]=-s*l,e[6]=o,e[10]=s*a}else if("ZYX"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=r*l-n,e[8]=t*l+i,e[1]=a*h,e[5]=i*l+t,e[9]=n*l-r,e[2]=-l,e[6]=o*a,e[10]=s*a}else if("YZX"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=i-t*h,e[8]=r*h+n,e[1]=h,e[5]=s*c,e[9]=-o*c,e[2]=-l*c,e[6]=n*h+r,e[10]=t-i*h}else if("XZY"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=-h,e[8]=l*c,e[1]=t*h+i,e[5]=s*c,e[9]=n*h-r,e[2]=r*h-n,e[6]=o*c,e[10]=i*h+t}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromQuaternion(t){return this.compose(Tr,t,Er)}lookAt(t,e,n){const r=this.elements;return Rr.subVectors(t,e),0===Rr.lengthSq()&&(Rr.z=1),Rr.normalize(),Ar.crossVectors(n,Rr),0===Ar.lengthSq()&&(1===Math.abs(n.z)?Rr.x+=1e-4:Rr.z+=1e-4,Rr.normalize(),Ar.crossVectors(n,Rr)),Ar.normalize(),Lr.crossVectors(Rr,Ar),r[0]=Ar.x,r[4]=Lr.x,r[8]=Rr.x,r[1]=Ar.y,r[5]=Lr.y,r[9]=Rr.y,r[2]=Ar.z,r[6]=Lr.z,r[10]=Rr.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(t,e)):this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[4],a=n[8],l=n[12],c=n[1],h=n[5],u=n[9],p=n[13],d=n[2],m=n[6],f=n[10],g=n[14],x=n[3],v=n[7],y=n[11],_=n[15],b=r[0],w=r[4],M=r[8],S=r[12],T=r[1],E=r[5],A=r[9],L=r[13],R=r[2],C=r[6],P=r[10],D=r[14],I=r[3],B=r[7],N=r[11],F=r[15];return i[0]=s*b+o*T+a*R+l*I,i[4]=s*w+o*E+a*C+l*B,i[8]=s*M+o*A+a*P+l*N,i[12]=s*S+o*L+a*D+l*F,i[1]=c*b+h*T+u*R+p*I,i[5]=c*w+h*E+u*C+p*B,i[9]=c*M+h*A+u*P+p*N,i[13]=c*S+h*L+u*D+p*F,i[2]=d*b+m*T+f*R+g*I,i[6]=d*w+m*E+f*C+g*B,i[10]=d*M+m*A+f*P+g*N,i[14]=d*S+m*L+f*D+g*F,i[3]=x*b+v*T+y*R+_*I,i[7]=x*w+v*E+y*C+_*B,i[11]=x*M+v*A+y*P+_*N,i[15]=x*S+v*L+y*D+_*F,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[4],r=t[8],i=t[12],s=t[1],o=t[5],a=t[9],l=t[13],c=t[2],h=t[6],u=t[10],p=t[14];return t[3]*(+i*a*h-r*l*h-i*o*u+n*l*u+r*o*p-n*a*p)+t[7]*(+e*a*p-e*l*u+i*s*u-r*s*p+r*l*c-i*a*c)+t[11]*(+e*l*h-e*o*p-i*s*h+n*s*p+i*o*c-n*l*c)+t[15]*(-r*o*c-e*a*h+e*o*u+r*s*h-n*s*u+n*a*c)}transpose(){const t=this.elements;let e;return e=t[1],t[1]=t[4],t[4]=e,e=t[2],t[2]=t[8],t[8]=e,e=t[6],t[6]=t[9],t[9]=e,e=t[3],t[3]=t[12],t[12]=e,e=t[7],t[7]=t[13],t[13]=e,e=t[11],t[11]=t[14],t[14]=e,this}setPosition(t,e,n){const r=this.elements;return t.isVector3?(r[12]=t.x,r[13]=t.y,r[14]=t.z):(r[12]=t,r[13]=e,r[14]=n),this}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=t[9],u=t[10],p=t[11],d=t[12],m=t[13],f=t[14],g=t[15],x=h*f*l-m*u*l+m*a*p-o*f*p-h*a*g+o*u*g,v=d*u*l-c*f*l-d*a*p+s*f*p+c*a*g-s*u*g,y=c*m*l-d*h*l+d*o*p-s*m*p-c*o*g+s*h*g,_=d*h*a-c*m*a-d*o*u+s*m*u+c*o*f-s*h*f,b=e*x+n*v+r*y+i*_;if(0===b)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const w=1/b;return t[0]=x*w,t[1]=(m*u*i-h*f*i-m*r*p+n*f*p+h*r*g-n*u*g)*w,t[2]=(o*f*i-m*a*i+m*r*l-n*f*l-o*r*g+n*a*g)*w,t[3]=(h*a*i-o*u*i-h*r*l+n*u*l+o*r*p-n*a*p)*w,t[4]=v*w,t[5]=(c*f*i-d*u*i+d*r*p-e*f*p-c*r*g+e*u*g)*w,t[6]=(d*a*i-s*f*i-d*r*l+e*f*l+s*r*g-e*a*g)*w,t[7]=(s*u*i-c*a*i+c*r*l-e*u*l-s*r*p+e*a*p)*w,t[8]=y*w,t[9]=(d*h*i-c*m*i-d*n*p+e*m*p+c*n*g-e*h*g)*w,t[10]=(s*m*i-d*o*i+d*n*l-e*m*l-s*n*g+e*o*g)*w,t[11]=(c*o*i-s*h*i-c*n*l+e*h*l+s*n*p-e*o*p)*w,t[12]=_*w,t[13]=(c*m*r-d*h*r+d*n*u-e*m*u-c*n*f+e*h*f)*w,t[14]=(d*o*r-s*m*r-d*n*a+e*m*a+s*n*f-e*o*f)*w,t[15]=(s*h*r-c*o*r+c*n*a-e*h*a-s*n*u+e*o*u)*w,this}scale(t){const e=this.elements,n=t.x,r=t.y,i=t.z;return e[0]*=n,e[4]*=r,e[8]*=i,e[1]*=n,e[5]*=r,e[9]*=i,e[2]*=n,e[6]*=r,e[10]*=i,e[3]*=n,e[7]*=r,e[11]*=i,this}getMaxScaleOnAxis(){const t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],n=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],r=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,n,r))}makeTranslation(t,e,n){return this.set(1,0,0,t,0,1,0,e,0,0,1,n,0,0,0,1),this}makeRotationX(t){const e=Math.cos(t),n=Math.sin(t);return this.set(1,0,0,0,0,e,-n,0,0,n,e,0,0,0,0,1),this}makeRotationY(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,0,n,0,0,1,0,0,-n,0,e,0,0,0,0,1),this}makeRotationZ(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,-n,0,0,n,e,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(t,e){const n=Math.cos(e),r=Math.sin(e),i=1-n,s=t.x,o=t.y,a=t.z,l=i*s,c=i*o;return this.set(l*s+n,l*o-r*a,l*a+r*o,0,l*o+r*a,c*o+n,c*a-r*s,0,l*a-r*o,c*a+r*s,i*a*a+n,0,0,0,0,1),this}makeScale(t,e,n){return this.set(t,0,0,0,0,e,0,0,0,0,n,0,0,0,0,1),this}makeShear(t,e,n){return this.set(1,e,n,0,t,1,n,0,t,e,1,0,0,0,0,1),this}compose(t,e,n){const r=this.elements,i=e._x,s=e._y,o=e._z,a=e._w,l=i+i,c=s+s,h=o+o,u=i*l,p=i*c,d=i*h,m=s*c,f=s*h,g=o*h,x=a*l,v=a*c,y=a*h,_=n.x,b=n.y,w=n.z;return r[0]=(1-(m+g))*_,r[1]=(p+y)*_,r[2]=(d-v)*_,r[3]=0,r[4]=(p-y)*b,r[5]=(1-(u+g))*b,r[6]=(f+x)*b,r[7]=0,r[8]=(d+v)*w,r[9]=(f-x)*w,r[10]=(1-(u+m))*w,r[11]=0,r[12]=t.x,r[13]=t.y,r[14]=t.z,r[15]=1,this}decompose(t,e,n){const r=this.elements;let i=Mr.set(r[0],r[1],r[2]).length();const s=Mr.set(r[4],r[5],r[6]).length(),o=Mr.set(r[8],r[9],r[10]).length();this.determinant()<0&&(i=-i),t.x=r[12],t.y=r[13],t.z=r[14],Sr.copy(this);const a=1/i,l=1/s,c=1/o;return Sr.elements[0]*=a,Sr.elements[1]*=a,Sr.elements[2]*=a,Sr.elements[4]*=l,Sr.elements[5]*=l,Sr.elements[6]*=l,Sr.elements[8]*=c,Sr.elements[9]*=c,Sr.elements[10]*=c,e.setFromRotationMatrix(Sr),n.x=i,n.y=s,n.z=o,this}makePerspective(t,e,n,r,i,s){void 0===s&&console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.");const o=this.elements,a=2*i/(e-t),l=2*i/(n-r),c=(e+t)/(e-t),h=(n+r)/(n-r),u=-(s+i)/(s-i),p=-2*s*i/(s-i);return o[0]=a,o[4]=0,o[8]=c,o[12]=0,o[1]=0,o[5]=l,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=u,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(t,e,n,r,i,s){const o=this.elements,a=1/(e-t),l=1/(n-r),c=1/(s-i),h=(e+t)*a,u=(n+r)*l,p=(s+i)*c;return o[0]=2*a,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*l,o[9]=0,o[13]=-u,o[2]=0,o[6]=0,o[10]=-2*c,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<16;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<16;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t[e+9]=n[9],t[e+10]=n[10],t[e+11]=n[11],t[e+12]=n[12],t[e+13]=n[13],t[e+14]=n[14],t[e+15]=n[15],t}}exports.Matrix4=wr,wr.prototype.isMatrix4=!0;const Mr=new Yn,Sr=new wr,Tr=new Yn(0,0,0),Er=new Yn(1,1,1),Ar=new Yn,Lr=new Yn,Rr=new Yn,Cr=new wr,Pr=new Xn;class Dr{constructor(t=0,e=0,n=0,r=Dr.DefaultOrder){this._x=t,this._y=e,this._z=n,this._order=r}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._order=r||this._order,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e,n){const r=Fn.clamp,i=t.elements,s=i[0],o=i[4],a=i[8],l=i[1],c=i[5],h=i[9],u=i[2],p=i[6],d=i[10];switch(e=e||this._order){case"XYZ":this._y=Math.asin(r(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-h,d),this._z=Math.atan2(-o,s)):(this._x=Math.atan2(p,c),this._z=0);break;case"YXZ":this._x=Math.asin(-r(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(l,c)):(this._y=Math.atan2(-u,s),this._z=0);break;case"ZXY":this._x=Math.asin(r(p,-1,1)),Math.abs(p)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-o,c)):(this._y=0,this._z=Math.atan2(l,s));break;case"ZYX":this._y=Math.asin(-r(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(p,d),this._z=Math.atan2(l,s)):(this._x=0,this._z=Math.atan2(-o,c));break;case"YZX":this._z=Math.asin(r(l,-1,1)),Math.abs(l)<.9999999?(this._x=Math.atan2(-h,c),this._y=Math.atan2(-u,s)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-r(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(p,c),this._y=Math.atan2(a,s)):(this._x=Math.atan2(-h,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!1!==n&&this._onChangeCallback(),this}setFromQuaternion(t,e,n){return Cr.makeRotationFromQuaternion(t),this.setFromRotationMatrix(Cr,e,n)}setFromVector3(t,e){return this.set(t.x,t.y,t.z,e||this._order)}reorder(t){return Pr.setFromEuler(this),this.setFromQuaternion(Pr,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t}toVector3(t){return t?t.set(this._x,this._y,this._z):new Yn(this._x,this._y,this._z)}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Euler=Dr,Dr.prototype.isEuler=!0,Dr.DefaultOrder="XYZ",Dr.RotationOrders=["XYZ","YZX","ZXY","XZY","YXZ","ZYX"];class Ir{constructor(){this.mask=1}set(t){this.mask=1<<t|0}enable(t){this.mask|=1<<t|0}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t|0}disable(t){this.mask&=~(1<<t|0)}disableAll(){this.mask=0}test(t){return 0!=(this.mask&t.mask)}}exports.Layers=Ir;let Br=0;const Nr=new Yn,Fr=new Xn,Or=new wr,zr=new Yn,Gr=new Yn,Hr=new Yn,Ur=new Xn,kr=new Yn(1,0,0),Vr=new Yn(0,1,0),Wr=new Yn(0,0,1),jr={type:"added"},qr={type:"removed"};function Xr(){Object.defineProperty(this,"id",{value:Br++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Xr.DefaultUp.clone();const t=new Yn,e=new Dr,n=new Xn,r=new Yn(1,1,1);e._onChange(function(){n.setFromEuler(e,!1)}),n._onChange(function(){e.setFromQuaternion(n,void 0,!1)}),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:n},scale:{configurable:!0,enumerable:!0,value:r},modelViewMatrix:{value:new wr},normalMatrix:{value:new zn}}),this.matrix=new wr,this.matrixWorld=new wr,this.matrixAutoUpdate=Xr.DefaultMatrixAutoUpdate,this.matrixWorldNeedsUpdate=!1,this.layers=new Ir,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}Xr.DefaultUp=new Yn(0,1,0),Xr.DefaultMatrixAutoUpdate=!0,Xr.prototype=Object.assign(Object.create(In.prototype),{constructor:Xr,isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix4:function(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(t){return this.quaternion.premultiply(t),this},setRotationFromAxisAngle:function(t,e){this.quaternion.setFromAxisAngle(t,e)},setRotationFromEuler:function(t){this.quaternion.setFromEuler(t,!0)},setRotationFromMatrix:function(t){this.quaternion.setFromRotationMatrix(t)},setRotationFromQuaternion:function(t){this.quaternion.copy(t)},rotateOnAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.multiply(Fr),this},rotateOnWorldAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.premultiply(Fr),this},rotateX:function(t){return this.rotateOnAxis(kr,t)},rotateY:function(t){return this.rotateOnAxis(Vr,t)},rotateZ:function(t){return this.rotateOnAxis(Wr,t)},translateOnAxis:function(t,e){return Nr.copy(t).applyQuaternion(this.quaternion),this.position.add(Nr.multiplyScalar(e)),this},translateX:function(t){return this.translateOnAxis(kr,t)},translateY:function(t){return this.translateOnAxis(Vr,t)},translateZ:function(t){return this.translateOnAxis(Wr,t)},localToWorld:function(t){return t.applyMatrix4(this.matrixWorld)},worldToLocal:function(t){return t.applyMatrix4(Or.copy(this.matrixWorld).invert())},lookAt:function(t,e,n){t.isVector3?zr.copy(t):zr.set(t,e,n);const r=this.parent;this.updateWorldMatrix(!0,!1),Gr.setFromMatrixPosition(this.matrixWorld),this.isCamera||this.isLight?Or.lookAt(Gr,zr,this.up):Or.lookAt(zr,Gr,this.up),this.quaternion.setFromRotationMatrix(Or),r&&(Or.extractRotation(r.matrixWorld),Fr.setFromRotationMatrix(Or),this.quaternion.premultiply(Fr.invert()))},add:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.add(arguments[t]);return this}return t===this?(console.error("THREE.Object3D.add: object can't be added as a child of itself.",t),this):(t&&t.isObject3D?(null!==t.parent&&t.parent.remove(t),t.parent=this,this.children.push(t),t.dispatchEvent(jr)):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t),this)},remove:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.remove(arguments[t]);return this}const e=this.children.indexOf(t);return-1!==e&&(t.parent=null,this.children.splice(e,1),t.dispatchEvent(qr)),this},clear:function(){for(let t=0;t<this.children.length;t++){const e=this.children[t];e.parent=null,e.dispatchEvent(qr)}return this.children.length=0,this},attach:function(t){return this.updateWorldMatrix(!0,!1),Or.copy(this.matrixWorld).invert(),null!==t.parent&&(t.parent.updateWorldMatrix(!0,!1),Or.multiply(t.parent.matrixWorld)),t.applyMatrix4(Or),this.add(t),t.updateWorldMatrix(!1,!0),this},getObjectById:function(t){return this.getObjectByProperty("id",t)},getObjectByName:function(t){return this.getObjectByProperty("name",t)},getObjectByProperty:function(t,e){if(this[t]===e)return this;for(let n=0,r=this.children.length;n<r;n++){const r=this.children[n].getObjectByProperty(t,e);if(void 0!==r)return r}},getWorldPosition:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldPosition() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),t.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldQuaternion() target is now required"),t=new Xn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,t,Hr),t},getWorldScale:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldScale() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,Ur,t),t},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Object3D: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(e[8],e[9],e[10]).normalize()},raycast:function(){},traverse:function(t){t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverse(t)},traverseVisible:function(t){if(!1===this.visible)return;t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverseVisible(t)},traverseAncestors:function(t){const e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))},updateMatrix:function(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,t=!0);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].updateMatrixWorld(t)},updateWorldMatrix:function(t,e){const n=this.parent;if(!0===t&&null!==n&&n.updateWorldMatrix(!0,!1),this.matrixAutoUpdate&&this.updateMatrix(),null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),!0===e){const t=this.children;for(let e=0,n=t.length;e<n;e++)t[e].updateWorldMatrix(!1,!0)}},toJSON:function(t){const e=void 0===t||"string"==typeof t,n={};e&&(t={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{}},n.metadata={version:4.5,type:"Object",generator:"Object3D.toJSON"});const r={};function i(e,n){return void 0===e[n.uuid]&&(e[n.uuid]=n.toJSON(t)),n.uuid}if(r.uuid=this.uuid,r.type=this.type,""!==this.name&&(r.name=this.name),!0===this.castShadow&&(r.castShadow=!0),!0===this.receiveShadow&&(r.receiveShadow=!0),!1===this.visible&&(r.visible=!1),!1===this.frustumCulled&&(r.frustumCulled=!1),0!==this.renderOrder&&(r.renderOrder=this.renderOrder),"{}"!==JSON.stringify(this.userData)&&(r.userData=this.userData),r.layers=this.layers.mask,r.matrix=this.matrix.toArray(),!1===this.matrixAutoUpdate&&(r.matrixAutoUpdate=!1),this.isInstancedMesh&&(r.type="InstancedMesh",r.count=this.count,r.instanceMatrix=this.instanceMatrix.toJSON()),this.isMesh||this.isLine||this.isPoints){r.geometry=i(t.geometries,this.geometry);const e=this.geometry.parameters;if(void 0!==e&&void 0!==e.shapes){const n=e.shapes;if(Array.isArray(n))for(let e=0,r=n.length;e<r;e++){const r=n[e];i(t.shapes,r)}else i(t.shapes,n)}}if(this.isSkinnedMesh&&(r.bindMode=this.bindMode,r.bindMatrix=this.bindMatrix.toArray(),void 0!==this.skeleton&&(i(t.skeletons,this.skeleton),r.skeleton=this.skeleton.uuid)),void 0!==this.material)if(Array.isArray(this.material)){const e=[];for(let n=0,r=this.material.length;n<r;n++)e.push(i(t.materials,this.material[n]));r.material=e}else r.material=i(t.materials,this.material);if(this.children.length>0){r.children=[];for(let e=0;e<this.children.length;e++)r.children.push(this.children[e].toJSON(t).object)}if(this.animations.length>0){r.animations=[];for(let e=0;e<this.animations.length;e++){const n=this.animations[e];r.animations.push(i(t.animations,n))}}if(e){const e=s(t.geometries),r=s(t.materials),i=s(t.textures),o=s(t.images),a=s(t.shapes),l=s(t.skeletons),c=s(t.animations);e.length>0&&(n.geometries=e),r.length>0&&(n.materials=r),i.length>0&&(n.textures=i),o.length>0&&(n.images=o),a.length>0&&(n.shapes=a),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c)}return n.object=r,n;function s(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}},clone:function(t){return(new this.constructor).copy(this,t)},copy:function(t,e=!0){if(this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.rotation.order=t.rotation.order,this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(let n=0;n<t.children.length;n++){const e=t.children[n];this.add(e.clone())}return this}});const Yr=new Yn,Zr=new Yn,Jr=new zn;class Qr{constructor(t=new Yn(1,0,0),e=0){this.normal=t,this.constant=e}set(t,e){return this.normal.copy(t),this.constant=e,this}setComponents(t,e,n,r){return this.normal.set(t,e,n),this.constant=r,this}setFromNormalAndCoplanarPoint(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this}setFromCoplanarPoints(t,e,n){const r=Yr.subVectors(n,e).cross(Zr.subVectors(t,e)).normalize();return this.setFromNormalAndCoplanarPoint(r,t),this}copy(t){return this.normal.copy(t.normal),this.constant=t.constant,this}normalize(){const t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(t){return this.normal.dot(t)+this.constant}distanceToSphere(t){return this.distanceToPoint(t.center)-t.radius}projectPoint(t,e){return void 0===e&&(console.warn("THREE.Plane: .projectPoint() target is now required"),e=new Yn),e.copy(this.normal).multiplyScalar(-this.distanceToPoint(t)).add(t)}intersectLine(t,e){void 0===e&&(console.warn("THREE.Plane: .intersectLine() target is now required"),e=new Yn);const n=t.delta(Yr),r=this.normal.dot(n);if(0===r)return 0===this.distanceToPoint(t.start)?e.copy(t.start):void 0;const i=-(t.start.dot(this.normal)+this.constant)/r;return i<0||i>1?void 0:e.copy(n).multiplyScalar(i).add(t.start)}intersectsLine(t){const e=this.distanceToPoint(t.start),n=this.distanceToPoint(t.end);return e<0&&n>0||n<0&&e>0}intersectsBox(t){return t.intersectsPlane(this)}intersectsSphere(t){return t.intersectsPlane(this)}coplanarPoint(t){return void 0===t&&(console.warn("THREE.Plane: .coplanarPoint() target is now required"),t=new Yn),t.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(t,e){const n=e||Jr.getNormalMatrix(t),r=this.coplanarPoint(Yr).applyMatrix4(t),i=this.normal.applyMatrix3(n).normalize();return this.constant=-r.dot(i),this}translate(t){return this.constant-=t.dot(this.normal),this}equals(t){return t.normal.equals(this.normal)&&t.constant===this.constant}clone(){return(new this.constructor).copy(this)}}exports.Plane=Qr,Qr.prototype.isPlane=!0;const Kr=new Yn,$r=new Yn,ti=new Yn,ei=new Yn,ni=new Yn,ri=new Yn,ii=new Yn,si=new Yn,oi=new Yn,ai=new Yn;class li{constructor(t=new Yn,e=new Yn,n=new Yn){this.a=t,this.b=e,this.c=n}static getNormal(t,e,n,r){void 0===r&&(console.warn("THREE.Triangle: .getNormal() target is now required"),r=new Yn),r.subVectors(n,e),Kr.subVectors(t,e),r.cross(Kr);const i=r.lengthSq();return i>0?r.multiplyScalar(1/Math.sqrt(i)):r.set(0,0,0)}static getBarycoord(t,e,n,r,i){Kr.subVectors(r,e),$r.subVectors(n,e),ti.subVectors(t,e);const s=Kr.dot(Kr),o=Kr.dot($r),a=Kr.dot(ti),l=$r.dot($r),c=$r.dot(ti),h=s*l-o*o;if(void 0===i&&(console.warn("THREE.Triangle: .getBarycoord() target is now required"),i=new Yn),0===h)return i.set(-2,-1,-1);const u=1/h,p=(l*a-o*c)*u,d=(s*c-o*a)*u;return i.set(1-p-d,d,p)}static containsPoint(t,e,n,r){return this.getBarycoord(t,e,n,r,ei),ei.x>=0&&ei.y>=0&&ei.x+ei.y<=1}static getUV(t,e,n,r,i,s,o,a){return this.getBarycoord(t,e,n,r,ei),a.set(0,0),a.addScaledVector(i,ei.x),a.addScaledVector(s,ei.y),a.addScaledVector(o,ei.z),a}static isFrontFacing(t,e,n,r){return Kr.subVectors(n,e),$r.subVectors(t,e),Kr.cross($r).dot(r)<0}set(t,e,n){return this.a.copy(t),this.b.copy(e),this.c.copy(n),this}setFromPointsAndIndices(t,e,n,r){return this.a.copy(t[e]),this.b.copy(t[n]),this.c.copy(t[r]),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this}getArea(){return Kr.subVectors(this.c,this.b),$r.subVectors(this.a,this.b),.5*Kr.cross($r).length()}getMidpoint(t){return void 0===t&&(console.warn("THREE.Triangle: .getMidpoint() target is now required"),t=new Yn),t.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(t){return li.getNormal(this.a,this.b,this.c,t)}getPlane(t){return void 0===t&&(console.warn("THREE.Triangle: .getPlane() target is now required"),t=new Qr),t.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(t,e){return li.getBarycoord(t,this.a,this.b,this.c,e)}getUV(t,e,n,r,i){return li.getUV(t,this.a,this.b,this.c,e,n,r,i)}containsPoint(t){return li.containsPoint(t,this.a,this.b,this.c)}isFrontFacing(t){return li.isFrontFacing(this.a,this.b,this.c,t)}intersectsBox(t){return t.intersectsTriangle(this)}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Triangle: .closestPointToPoint() target is now required"),e=new Yn);const n=this.a,r=this.b,i=this.c;let s,o;ni.subVectors(r,n),ri.subVectors(i,n),si.subVectors(t,n);const a=ni.dot(si),l=ri.dot(si);if(a<=0&&l<=0)return e.copy(n);oi.subVectors(t,r);const c=ni.dot(oi),h=ri.dot(oi);if(c>=0&&h<=c)return e.copy(r);const u=a*h-c*l;if(u<=0&&a>=0&&c<=0)return s=a/(a-c),e.copy(n).addScaledVector(ni,s);ai.subVectors(t,i);const p=ni.dot(ai),d=ri.dot(ai);if(d>=0&&p<=d)return e.copy(i);const m=p*l-a*d;if(m<=0&&l>=0&&d<=0)return o=l/(l-d),e.copy(n).addScaledVector(ri,o);const f=c*d-p*h;if(f<=0&&h-c>=0&&p-d>=0)return ii.subVectors(i,r),o=(h-c)/(h-c+(p-d)),e.copy(r).addScaledVector(ii,o);const g=1/(f+m+u);return s=m*g,o=u*g,e.copy(n).addScaledVector(ni,s).addScaledVector(ri,o)}equals(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}exports.Triangle=li;let ci=0;function hi(){Object.defineProperty(this,"id",{value:ci++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Material",this.fog=!0,this.blending=x,this.side=u,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.blendSrc=P,this.blendDst=D,this.blendEquation=w,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=U,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=bn,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=an,this.stencilZFail=an,this.stencilZPass=an,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaTest=0,this.premultipliedAlpha=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0}hi.prototype=Object.assign(Object.create(In.prototype),{constructor:hi,isMaterial:!0,onBeforeCompile:function(){},customProgramCacheKey:function(){return this.onBeforeCompile.toString()},setValues:function(t){if(void 0!==t)for(const e in t){const n=t[e];if(void 0===n){console.warn("THREE.Material: '"+e+"' parameter is undefined.");continue}if("shading"===e){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===n;continue}const r=this[e];void 0!==r?r&&r.isColor?r.set(n):r&&r.isVector3&&n&&n.isVector3?r.copy(n):this[e]=n:console.warn("THREE."+this.type+": '"+e+"' is not a property of this material.")}},toJSON:function(t){const e=void 0===t||"string"==typeof t;e&&(t={textures:{},images:{}});const n={metadata:{version:4.5,type:"Material",generator:"Material.toJSON"}};function r(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),this.sheen&&this.sheen.isColor&&(n.sheen=this.sheen.getHex()),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(t).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(t).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(t).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(t).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(t).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(t).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(t).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(t).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(t).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(t).uuid,n.reflectivity=this.reflectivity,n.refractionRatio=this.refractionRatio,void 0!==this.combine&&(n.combine=this.combine),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity)),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.size&&(n.size=this.size),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),this.blending!==x&&(n.blending=this.blending),this.side!==u&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.morphTargets&&(n.morphTargets=!0),!0===this.morphNormals&&(n.morphNormals=!0),!0===this.skinning&&(n.skinning=!0),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),"{}"!==JSON.stringify(this.userData)&&(n.userData=this.userData),e){const e=r(t.textures),i=r(t.images);e.length>0&&(n.textures=e),i.length>0&&(n.images=i)}return n},clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.name=t.name,this.fog=t.fog,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;const e=t.clippingPlanes;let n=null;if(null!==e){const t=e.length;n=new Array(t);for(let r=0;r!==t;++r)n[r]=e[r].clone()}return this.clippingPlanes=n,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.premultipliedAlpha=t.premultipliedAlpha,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this},dispose:function(){this.dispatchEvent({type:"dispose"})}}),Object.defineProperty(hi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}});const ui={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},pi={h:0,s:0,l:0},di={h:0,s:0,l:0};function mi(t,e,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?t+6*(e-t)*n:n<.5?e:n<2/3?t+6*(e-t)*(2/3-n):t}function fi(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}function gi(t){return t<.0031308?12.92*t:1.055*Math.pow(t,.41666)-.055}class xi{constructor(t,e,n){return void 0===e&&void 0===n?this.set(t):this.setRGB(t,e,n)}set(t){return t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t),this}setScalar(t){return this.r=t,this.g=t,this.b=t,this}setHex(t){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,this}setRGB(t,e,n){return this.r=t,this.g=e,this.b=n,this}setHSL(t,e,n){if(t=Fn.euclideanModulo(t,1),e=Fn.clamp(e,0,1),n=Fn.clamp(n,0,1),0===e)this.r=this.g=this.b=n;else{const r=n<=.5?n*(1+e):n+e-n*e,i=2*n-r;this.r=mi(i,r,t+1/3),this.g=mi(i,r,t),this.b=mi(i,r,t-1/3)}return this}setStyle(t){function e(e){void 0!==e&&parseFloat(e)<1&&console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")}let n;if(n=/^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(t)){let t;const r=n[1],i=n[2];switch(r){case"rgb":case"rgba":if(t=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(255,parseInt(t[1],10))/255,this.g=Math.min(255,parseInt(t[2],10))/255,this.b=Math.min(255,parseInt(t[3],10))/255,e(t[4]),this;if(t=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(100,parseInt(t[1],10))/100,this.g=Math.min(100,parseInt(t[2],10))/100,this.b=Math.min(100,parseInt(t[3],10))/100,e(t[4]),this;break;case"hsl":case"hsla":if(t=/^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i)){const n=parseFloat(t[1])/360,r=parseInt(t[2],10)/100,i=parseInt(t[3],10)/100;return e(t[4]),this.setHSL(n,r,i)}}}else if(n=/^\#([A-Fa-f\d]+)$/.exec(t)){const t=n[1],e=t.length;if(3===e)return this.r=parseInt(t.charAt(0)+t.charAt(0),16)/255,this.g=parseInt(t.charAt(1)+t.charAt(1),16)/255,this.b=parseInt(t.charAt(2)+t.charAt(2),16)/255,this;if(6===e)return this.r=parseInt(t.charAt(0)+t.charAt(1),16)/255,this.g=parseInt(t.charAt(2)+t.charAt(3),16)/255,this.b=parseInt(t.charAt(4)+t.charAt(5),16)/255,this}return t&&t.length>0?this.setColorName(t):this}setColorName(t){const e=ui[t];return void 0!==e?this.setHex(e):console.warn("THREE.Color: Unknown color "+t),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(t){return this.r=t.r,this.g=t.g,this.b=t.b,this}copyGammaToLinear(t,e=2){return this.r=Math.pow(t.r,e),this.g=Math.pow(t.g,e),this.b=Math.pow(t.b,e),this}copyLinearToGamma(t,e=2){const n=e>0?1/e:1;return this.r=Math.pow(t.r,n),this.g=Math.pow(t.g,n),this.b=Math.pow(t.b,n),this}convertGammaToLinear(t){return this.copyGammaToLinear(this,t),this}convertLinearToGamma(t){return this.copyLinearToGamma(this,t),this}copySRGBToLinear(t){return this.r=fi(t.r),this.g=fi(t.g),this.b=fi(t.b),this}copyLinearToSRGB(t){return this.r=gi(t.r),this.g=gi(t.g),this.b=gi(t.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(){return 255*this.r<<16^255*this.g<<8^255*this.b<<0}getHexString(){return("000000"+this.getHex().toString(16)).slice(-6)}getHSL(t){void 0===t&&(console.warn("THREE.Color: .getHSL() target is now required"),t={h:0,s:0,l:0});const e=this.r,n=this.g,r=this.b,i=Math.max(e,n,r),s=Math.min(e,n,r);let o,a;const l=(s+i)/2;if(s===i)o=0,a=0;else{const t=i-s;switch(a=l<=.5?t/(i+s):t/(2-i-s),i){case e:o=(n-r)/t+(n<r?6:0);break;case n:o=(r-e)/t+2;break;case r:o=(e-n)/t+4}o/=6}return t.h=o,t.s=a,t.l=l,t}getStyle(){return"rgb("+(255*this.r|0)+","+(255*this.g|0)+","+(255*this.b|0)+")"}offsetHSL(t,e,n){return this.getHSL(pi),pi.h+=t,pi.s+=e,pi.l+=n,this.setHSL(pi.h,pi.s,pi.l),this}add(t){return this.r+=t.r,this.g+=t.g,this.b+=t.b,this}addColors(t,e){return this.r=t.r+e.r,this.g=t.g+e.g,this.b=t.b+e.b,this}addScalar(t){return this.r+=t,this.g+=t,this.b+=t,this}sub(t){return this.r=Math.max(0,this.r-t.r),this.g=Math.max(0,this.g-t.g),this.b=Math.max(0,this.b-t.b),this}multiply(t){return this.r*=t.r,this.g*=t.g,this.b*=t.b,this}multiplyScalar(t){return this.r*=t,this.g*=t,this.b*=t,this}lerp(t,e){return this.r+=(t.r-this.r)*e,this.g+=(t.g-this.g)*e,this.b+=(t.b-this.b)*e,this}lerpColors(t,e,n){return this.r=t.r+(e.r-t.r)*n,this.g=t.g+(e.g-t.g)*n,this.b=t.b+(e.b-t.b)*n,this}lerpHSL(t,e){this.getHSL(pi),t.getHSL(di);const n=Fn.lerp(pi.h,di.h,e),r=Fn.lerp(pi.s,di.s,e),i=Fn.lerp(pi.l,di.l,e);return this.setHSL(n,r,i),this}equals(t){return t.r===this.r&&t.g===this.g&&t.b===this.b}fromArray(t,e=0){return this.r=t[e],this.g=t[e+1],this.b=t[e+2],this}toArray(t=[],e=0){return t[e]=this.r,t[e+1]=this.g,t[e+2]=this.b,t}fromBufferAttribute(t,e){return this.r=t.getX(e),this.g=t.getY(e),this.b=t.getZ(e),!0===t.normalized&&(this.r/=255,this.g/=255,this.b/=255),this}toJSON(){return this.getHex()}}exports.Color=xi,xi.NAMES=ui,xi.prototype.isColor=!0,xi.prototype.r=1,xi.prototype.g=1,xi.prototype.b=1;class vi extends hi{constructor(t){super(),this.type="MeshBasicMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this}}exports.MeshBasicMaterial=vi,vi.prototype.isMeshBasicMaterial=!0;const yi=new Yn,_i=new On;function bi(t,e,n){if(Array.isArray(t))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.name="",this.array=t,this.itemSize=e,this.count=void 0!==t?t.length/e:0,this.normalized=!0===n,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0}function wi(t,e,n){bi.call(this,new Int8Array(t),e,n)}function Mi(t,e,n){bi.call(this,new Uint8Array(t),e,n)}function Si(t,e,n){bi.call(this,new Uint8ClampedArray(t),e,n)}function Ti(t,e,n){bi.call(this,new Int16Array(t),e,n)}function Ei(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ai(t,e,n){bi.call(this,new Int32Array(t),e,n)}function Li(t,e,n){bi.call(this,new Uint32Array(t),e,n)}function Ri(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ci(t,e,n){bi.call(this,new Float32Array(t),e,n)}function Pi(t,e,n){bi.call(this,new Float64Array(t),e,n)}function Di(t){if(0===t.length)return-1/0;let e=t[0];for(let n=1,r=t.length;n<r;++n)t[n]>e&&(e=t[n]);return e}Object.defineProperty(bi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(bi.prototype,{isBufferAttribute:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.itemSize,n*=e.itemSize;for(let r=0,i=this.itemSize;r<i;r++)this.array[t+r]=e.array[n+r];return this},copyArray:function(t){return this.array.set(t),this},copyColorsArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",r),i=new xi),e[n++]=i.r,e[n++]=i.g,e[n++]=i.b}return this},copyVector2sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",r),i=new On),e[n++]=i.x,e[n++]=i.y}return this},copyVector3sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",r),i=new Yn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z}return this},copyVector4sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",r),i=new Wn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z,e[n++]=i.w}return this},applyMatrix3:function(t){if(2===this.itemSize)for(let e=0,n=this.count;e<n;e++)_i.fromBufferAttribute(this,e),_i.applyMatrix3(t),this.setXY(e,_i.x,_i.y);else if(3===this.itemSize)for(let e=0,n=this.count;e<n;e++)yi.fromBufferAttribute(this,e),yi.applyMatrix3(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyMatrix4:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyMatrix4(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyNormalMatrix:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyNormalMatrix(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},transformDirection:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.transformDirection(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},set:function(t,e=0){return this.array.set(t,e),this},getX:function(t){return this.array[t*this.itemSize]},setX:function(t,e){return this.array[t*this.itemSize]=e,this},getY:function(t){return this.array[t*this.itemSize+1]},setY:function(t,e){return this.array[t*this.itemSize+1]=e,this},getZ:function(t){return this.array[t*this.itemSize+2]},setZ:function(t,e){return this.array[t*this.itemSize+2]=e,this},getW:function(t){return this.array[t*this.itemSize+3]},setW:function(t,e){return this.array[t*this.itemSize+3]=e,this},setXY:function(t,e,n){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this.array[t+3]=i,this},onUpload:function(t){return this.onUploadCallback=t,this},clone:function(){return new this.constructor(this.array,this.itemSize).copy(this)},toJSON:function(){return{itemSize:this.itemSize,type:this.array.constructor.name,array:Array.prototype.slice.call(this.array),normalized:this.normalized}}}),wi.prototype=Object.create(bi.prototype),wi.prototype.constructor=wi,Mi.prototype=Object.create(bi.prototype),Mi.prototype.constructor=Mi,Si.prototype=Object.create(bi.prototype),Si.prototype.constructor=Si,Ti.prototype=Object.create(bi.prototype),Ti.prototype.constructor=Ti,Ei.prototype=Object.create(bi.prototype),Ei.prototype.constructor=Ei,Ai.prototype=Object.create(bi.prototype),Ai.prototype.constructor=Ai,Li.prototype=Object.create(bi.prototype),Li.prototype.constructor=Li,Ri.prototype=Object.create(bi.prototype),Ri.prototype.constructor=Ri,Ri.prototype.isFloat16BufferAttribute=!0,Ci.prototype=Object.create(bi.prototype),Ci.prototype.constructor=Ci,Pi.prototype=Object.create(bi.prototype),Pi.prototype.constructor=Pi;const Ii={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:Uint8ClampedArray,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};function Bi(t,e){return new Ii[t](e)}let Ni=0;const Fi=new wr,Oi=new Xr,zi=new Yn,Gi=new Qn,Hi=new Qn,Ui=new Yn;function ki(){Object.defineProperty(this,"id",{value:Ni++}),this.uuid=Fn.generateUUID(),this.name="",this.type="BufferGeometry",this.index=null,this.attributes={},this.morphAttributes={},this.morphTargetsRelative=!1,this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.drawRange={start:0,count:1/0},this.userData={}}ki.prototype=Object.assign(Object.create(In.prototype),{constructor:ki,isBufferGeometry:!0,getIndex:function(){return this.index},setIndex:function(t){return Array.isArray(t)?this.index=new(Di(t)>65535?Li:Ei)(t,1):this.index=t,this},getAttribute:function(t){return this.attributes[t]},setAttribute:function(t,e){return this.attributes[t]=e,this},deleteAttribute:function(t){return delete this.attributes[t],this},hasAttribute:function(t){return void 0!==this.attributes[t]},addGroup:function(t,e,n=0){this.groups.push({start:t,count:e,materialIndex:n})},clearGroups:function(){this.groups=[]},setDrawRange:function(t,e){this.drawRange.start=t,this.drawRange.count=e},applyMatrix4:function(t){const e=this.attributes.position;void 0!==e&&(e.applyMatrix4(t),e.needsUpdate=!0);const n=this.attributes.normal;if(void 0!==n){const e=(new zn).getNormalMatrix(t);n.applyNormalMatrix(e),n.needsUpdate=!0}const r=this.attributes.tangent;return void 0!==r&&(r.transformDirection(t),r.needsUpdate=!0),null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this},rotateX:function(t){return Fi.makeRotationX(t),this.applyMatrix4(Fi),this},rotateY:function(t){return Fi.makeRotationY(t),this.applyMatrix4(Fi),this},rotateZ:function(t){return Fi.makeRotationZ(t),this.applyMatrix4(Fi),this},translate:function(t,e,n){return Fi.makeTranslation(t,e,n),this.applyMatrix4(Fi),this},scale:function(t,e,n){return Fi.makeScale(t,e,n),this.applyMatrix4(Fi),this},lookAt:function(t){return Oi.lookAt(t),Oi.updateMatrix(),this.applyMatrix4(Oi.matrix),this},center:function(){return this.computeBoundingBox(),this.boundingBox.getCenter(zi).negate(),this.translate(zi.x,zi.y,zi.z),this},setFromPoints:function(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n];e.push(r.x,r.y,r.z||0)}return this.setAttribute("position",new Ci(e,3)),this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new Qn);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingBox.set(new Yn(-1/0,-1/0,-1/0),new Yn(1/0,1/0,1/0));if(void 0!==t){if(this.boundingBox.setFromBufferAttribute(t),e)for(let n=0,r=e.length;n<r;n++){const t=e[n];Gi.setFromBufferAttribute(t),this.morphTargetsRelative?(Ui.addVectors(this.boundingBox.min,Gi.min),this.boundingBox.expandByPoint(Ui),Ui.addVectors(this.boundingBox.max,Gi.max),this.boundingBox.expandByPoint(Ui)):(this.boundingBox.expandByPoint(Gi.min),this.boundingBox.expandByPoint(Gi.max))}}else this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new dr);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingSphere.set(new Yn,1/0);if(t){const n=this.boundingSphere.center;if(Gi.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const n=e[t];Hi.setFromBufferAttribute(n),this.morphTargetsRelative?(Ui.addVectors(Gi.min,Hi.min),Gi.expandByPoint(Ui),Ui.addVectors(Gi.max,Hi.max),Gi.expandByPoint(Ui)):(Gi.expandByPoint(Hi.min),Gi.expandByPoint(Hi.max))}Gi.getCenter(n);let r=0;for(let e=0,i=t.count;e<i;e++)Ui.fromBufferAttribute(t,e),r=Math.max(r,n.distanceToSquared(Ui));if(e)for(let i=0,s=e.length;i<s;i++){const s=e[i],o=this.morphTargetsRelative;for(let e=0,i=s.count;e<i;e++)Ui.fromBufferAttribute(s,e),o&&(zi.fromBufferAttribute(t,e),Ui.add(zi)),r=Math.max(r,n.distanceToSquared(Ui))}this.boundingSphere.radius=Math.sqrt(r),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}},computeFaceNormals:function(){},computeTangents:function(){const t=this.index,e=this.attributes;if(null===t||void 0===e.position||void 0===e.normal||void 0===e.uv)return void console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");const n=t.array,r=e.position.array,i=e.normal.array,s=e.uv.array,o=r.length/3;void 0===e.tangent&&this.setAttribute("tangent",new bi(new Float32Array(4*o),4));const a=e.tangent.array,l=[],c=[];for(let T=0;T<o;T++)l[T]=new Yn,c[T]=new Yn;const h=new Yn,u=new Yn,p=new Yn,d=new On,m=new On,f=new On,g=new Yn,x=new Yn;function v(t,e,n){h.fromArray(r,3*t),u.fromArray(r,3*e),p.fromArray(r,3*n),d.fromArray(s,2*t),m.fromArray(s,2*e),f.fromArray(s,2*n),u.sub(h),p.sub(h),m.sub(d),f.sub(d);const i=1/(m.x*f.y-f.x*m.y);isFinite(i)&&(g.copy(u).multiplyScalar(f.y).addScaledVector(p,-m.y).multiplyScalar(i),x.copy(p).multiplyScalar(m.x).addScaledVector(u,-f.x).multiplyScalar(i),l[t].add(g),l[e].add(g),l[n].add(g),c[t].add(x),c[e].add(x),c[n].add(x))}let y=this.groups;0===y.length&&(y=[{start:0,count:n.length}]);for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)v(n[r+0],n[r+1],n[r+2])}const _=new Yn,b=new Yn,w=new Yn,M=new Yn;function S(t){w.fromArray(i,3*t),M.copy(w);const e=l[t];_.copy(e),_.sub(w.multiplyScalar(w.dot(e))).normalize(),b.crossVectors(M,e);const n=b.dot(c[t])<0?-1:1;a[4*t]=_.x,a[4*t+1]=_.y,a[4*t+2]=_.z,a[4*t+3]=n}for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)S(n[r+0]),S(n[r+1]),S(n[r+2])}},computeVertexNormals:function(){const t=this.index,e=this.getAttribute("position");if(void 0!==e){let n=this.getAttribute("normal");if(void 0===n)n=new bi(new Float32Array(3*e.count),3),this.setAttribute("normal",n);else for(let t=0,e=n.count;t<e;t++)n.setXYZ(t,0,0,0);const r=new Yn,i=new Yn,s=new Yn,o=new Yn,a=new Yn,l=new Yn,c=new Yn,h=new Yn;if(t)for(let u=0,p=t.count;u<p;u+=3){const p=t.getX(u+0),d=t.getX(u+1),m=t.getX(u+2);r.fromBufferAttribute(e,p),i.fromBufferAttribute(e,d),s.fromBufferAttribute(e,m),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),o.fromBufferAttribute(n,p),a.fromBufferAttribute(n,d),l.fromBufferAttribute(n,m),o.add(c),a.add(c),l.add(c),n.setXYZ(p,o.x,o.y,o.z),n.setXYZ(d,a.x,a.y,a.z),n.setXYZ(m,l.x,l.y,l.z)}else for(let t=0,u=e.count;t<u;t+=3)r.fromBufferAttribute(e,t+0),i.fromBufferAttribute(e,t+1),s.fromBufferAttribute(e,t+2),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),n.setXYZ(t+0,c.x,c.y,c.z),n.setXYZ(t+1,c.x,c.y,c.z),n.setXYZ(t+2,c.x,c.y,c.z);this.normalizeNormals(),n.needsUpdate=!0}},merge:function(t,e){if(!t||!t.isBufferGeometry)return void console.error("THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.",t);void 0===e&&(e=0,console.warn("THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge."));const n=this.attributes;for(const r in n){if(void 0===t.attributes[r])continue;const i=n[r].array,s=t.attributes[r],o=s.array,a=s.itemSize*e,l=Math.min(o.length,i.length-a);for(let t=0,e=a;t<l;t++,e++)i[e]=o[t]}return this},normalizeNormals:function(){const t=this.attributes.normal;for(let e=0,n=t.count;e<n;e++)Ui.fromBufferAttribute(t,e),Ui.normalize(),t.setXYZ(e,Ui.x,Ui.y,Ui.z)},toNonIndexed:function(){function t(t,e){const n=t.array,r=t.itemSize,i=t.normalized,s=new n.constructor(e.length*r);let o=0,a=0;for(let l=0,c=e.length;l<c;l++){o=e[l]*r;for(let t=0;t<r;t++)s[a++]=n[o++]}return new bi(s,r,i)}if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed."),this;const e=new ki,n=this.index.array,r=this.attributes;for(const o in r){const i=t(r[o],n);e.setAttribute(o,i)}const i=this.morphAttributes;for(const o in i){const r=[],s=i[o];for(let e=0,i=s.length;e<i;e++){const i=t(s[e],n);r.push(i)}e.morphAttributes[o]=r}e.morphTargetsRelative=this.morphTargetsRelative;const s=this.groups;for(let o=0,a=s.length;o<a;o++){const t=s[o];e.addGroup(t.start,t.count,t.materialIndex)}return e},toJSON:function(){const t={metadata:{version:4.5,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};if(t.uuid=this.uuid,t.type=this.type,""!==this.name&&(t.name=this.name),Object.keys(this.userData).length>0&&(t.userData=this.userData),void 0!==this.parameters){const e=this.parameters;for(const n in e)void 0!==e[n]&&(t[n]=e[n]);return t}t.data={attributes:{}};const e=this.index;null!==e&&(t.data.index={type:e.array.constructor.name,array:Array.prototype.slice.call(e.array)});const n=this.attributes;for(const a in n){const e=n[a],r=e.toJSON(t.data);""!==e.name&&(r.name=e.name),t.data.attributes[a]=r}const r={};let i=!1;for(const a in this.morphAttributes){const e=this.morphAttributes[a],n=[];for(let r=0,i=e.length;r<i;r++){const i=e[r],s=i.toJSON(t.data);""!==i.name&&(s.name=i.name),n.push(s)}n.length>0&&(r[a]=n,i=!0)}i&&(t.data.morphAttributes=r,t.data.morphTargetsRelative=this.morphTargetsRelative);const s=this.groups;s.length>0&&(t.data.groups=JSON.parse(JSON.stringify(s)));const o=this.boundingSphere;return null!==o&&(t.data.boundingSphere={center:o.center.toArray(),radius:o.radius}),t},clone:function(){return(new ki).copy(this)},copy:function(t){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const e={};this.name=t.name;const n=t.index;null!==n&&this.setIndex(n.clone(e));const r=t.attributes;for(const l in r){const t=r[l];this.setAttribute(l,t.clone(e))}const i=t.morphAttributes;for(const l in i){const t=[],n=i[l];for(let r=0,i=n.length;r<i;r++)t.push(n[r].clone(e));this.morphAttributes[l]=t}this.morphTargetsRelative=t.morphTargetsRelative;const s=t.groups;for(let l=0,c=s.length;l<c;l++){const t=s[l];this.addGroup(t.start,t.count,t.materialIndex)}const o=t.boundingBox;null!==o&&(this.boundingBox=o.clone());const a=t.boundingSphere;return null!==a&&(this.boundingSphere=a.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this.userData=t.userData,this},dispose:function(){this.dispatchEvent({type:"dispose"})}});const Vi=new wr,Wi=new br,ji=new dr,qi=new Yn,Xi=new Yn,Yi=new Yn,Zi=new Yn,Ji=new Yn,Qi=new Yn,Ki=new Yn,$i=new Yn,ts=new Yn,es=new On,ns=new On,rs=new On,is=new Yn,ss=new Yn;function os(t=new ki,e=new vi){Xr.call(this),this.type="Mesh",this.geometry=t,this.material=e,this.updateMorphTargets()}function as(t,e,n,r,i,s,o,a){let l;if(null===(l=e.side===p?r.intersectTriangle(o,s,i,!0,a):r.intersectTriangle(i,s,o,e.side!==d,a)))return null;ss.copy(a),ss.applyMatrix4(t.matrixWorld);const c=n.ray.origin.distanceTo(ss);return c<n.near||c>n.far?null:{distance:c,point:ss.clone(),object:t}}function ls(t,e,n,r,i,s,o,a,l,c,h,u){qi.fromBufferAttribute(i,c),Xi.fromBufferAttribute(i,h),Yi.fromBufferAttribute(i,u);const p=t.morphTargetInfluences;if(e.morphTargets&&s&&p){Ki.set(0,0,0),$i.set(0,0,0),ts.set(0,0,0);for(let t=0,e=s.length;t<e;t++){const e=p[t],n=s[t];0!==e&&(Zi.fromBufferAttribute(n,c),Ji.fromBufferAttribute(n,h),Qi.fromBufferAttribute(n,u),o?(Ki.addScaledVector(Zi,e),$i.addScaledVector(Ji,e),ts.addScaledVector(Qi,e)):(Ki.addScaledVector(Zi.sub(qi),e),$i.addScaledVector(Ji.sub(Xi),e),ts.addScaledVector(Qi.sub(Yi),e)))}qi.add(Ki),Xi.add($i),Yi.add(ts)}t.isSkinnedMesh&&e.skinning&&(t.boneTransform(c,qi),t.boneTransform(h,Xi),t.boneTransform(u,Yi));const d=as(t,e,n,r,qi,Xi,Yi,is);if(d){a&&(es.fromBufferAttribute(a,c),ns.fromBufferAttribute(a,h),rs.fromBufferAttribute(a,u),d.uv=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On)),l&&(es.fromBufferAttribute(l,c),ns.fromBufferAttribute(l,h),rs.fromBufferAttribute(l,u),d.uv2=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On));const t={a:c,b:h,c:u,normal:new Yn,materialIndex:0};li.getNormal(qi,Xi,Yi,t.normal),d.face=t}return d}os.prototype=Object.assign(Object.create(Xr.prototype),{constructor:os,isMesh:!0,copy:function(t){return Xr.prototype.copy.call(this,t),void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this.material=t.material,this.geometry=t.geometry,this},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}},raycast:function(t,e){const n=this.geometry,r=this.material,i=this.matrixWorld;if(void 0===r)return;if(null===n.boundingSphere&&n.computeBoundingSphere(),ji.copy(n.boundingSphere),ji.applyMatrix4(i),!1===t.ray.intersectsSphere(ji))return;if(Vi.copy(i).invert(),Wi.copy(t.ray).applyMatrix4(Vi),null!==n.boundingBox&&!1===Wi.intersectsBox(n.boundingBox))return;let s;if(n.isBufferGeometry){const i=n.index,o=n.attributes.position,a=n.morphAttributes.position,l=n.morphTargetsRelative,c=n.attributes.uv,h=n.attributes.uv2,u=n.groups,p=n.drawRange;if(null!==i)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const d=u[n],m=r[d.materialIndex];for(let n=Math.max(d.start,p.start),r=Math.min(d.start+d.count,p.start+p.count);n<r;n+=3){const r=i.getX(n),u=i.getX(n+1),p=i.getX(n+2);(s=ls(this,m,t,Wi,o,a,l,c,h,r,u,p))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=d.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),u=Math.min(i.count,p.start+p.count);n<u;n+=3){const u=i.getX(n),p=i.getX(n+1),d=i.getX(n+2);(s=ls(this,r,t,Wi,o,a,l,c,h,u,p,d))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}else if(void 0!==o)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const i=u[n],d=r[i.materialIndex];for(let n=Math.max(i.start,p.start),r=Math.min(i.start+i.count,p.start+p.count);n<r;n+=3){(s=ls(this,d,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=i.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),i=Math.min(o.count,p.start+p.count);n<i;n+=3){(s=ls(this,r,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}}else n.isGeometry&&console.error("THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}});class cs extends ki{constructor(t=1,e=1,n=1,r=1,i=1,s=1){super(),this.type="BoxGeometry",this.parameters={width:t,height:e,depth:n,widthSegments:r,heightSegments:i,depthSegments:s};const o=this;r=Math.floor(r),i=Math.floor(i),s=Math.floor(s);const a=[],l=[],c=[],h=[];let u=0,p=0;function d(t,e,n,r,i,s,d,m,f,g,x){const v=s/f,y=d/g,_=s/2,b=d/2,w=m/2,M=f+1,S=g+1;let T=0,E=0;const A=new Yn;for(let o=0;o<S;o++){const s=o*y-b;for(let a=0;a<M;a++){const u=a*v-_;A[t]=u*r,A[e]=s*i,A[n]=w,l.push(A.x,A.y,A.z),A[t]=0,A[e]=0,A[n]=m>0?1:-1,c.push(A.x,A.y,A.z),h.push(a/f),h.push(1-o/g),T+=1}}for(let o=0;o<g;o++)for(let t=0;t<f;t++){const e=u+t+M*o,n=u+t+M*(o+1),r=u+(t+1)+M*(o+1),i=u+(t+1)+M*o;a.push(e,n,i),a.push(n,r,i),E+=6}o.addGroup(p,E,x),p+=E,u+=T}d("z","y","x",-1,-1,n,e,t,s,i,0),d("z","y","x",1,-1,n,e,-t,s,i,1),d("x","z","y",1,1,t,n,e,r,s,2),d("x","z","y",1,-1,t,n,-e,r,s,3),d("x","y","z",1,-1,t,e,n,r,i,4),d("x","y","z",-1,-1,t,e,-n,r,i,5),this.setIndex(a),this.setAttribute("position",new Ci(l,3)),this.setAttribute("normal",new Ci(c,3)),this.setAttribute("uv",new Ci(h,2))}}function hs(t){const e={};for(const n in t){e[n]={};for(const r in t[n]){const i=t[n][r];i&&(i.isColor||i.isMatrix3||i.isMatrix4||i.isVector2||i.isVector3||i.isVector4||i.isTexture||i.isQuaternion)?e[n][r]=i.clone():Array.isArray(i)?e[n][r]=i.slice():e[n][r]=i}}return e}function us(t){const e={};for(let n=0;n<t.length;n++){const r=hs(t[n]);for(const t in r)e[t]=r[t]}return e}exports.BoxGeometry=exports.BoxBufferGeometry=cs;const ps={clone:hs,merge:us};exports.UniformsUtils=ps;var ds="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}",ms="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";function fs(t){hi.call(this),this.type="ShaderMaterial",this.defines={},this.uniforms={},this.vertexShader=ds,this.fragmentShader=ms,this.linewidth=1,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.clipping=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.extensions={derivatives:!1,fragDepth:!1,drawBuffers:!1,shaderTextureLOD:!1},this.defaultAttributeValues={color:[1,1,1],uv:[0,0],uv2:[0,0]},this.index0AttributeName=void 0,this.uniformsNeedUpdate=!1,this.glslVersion=null,void 0!==t&&(void 0!==t.attributes&&console.error("THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead."),this.setValues(t))}function gs(){Xr.call(this),this.type="Camera",this.matrixWorldInverse=new wr,this.projectionMatrix=new wr,this.projectionMatrixInverse=new wr}function xs(t=50,e=1,n=.1,r=2e3){gs.call(this),this.type="PerspectiveCamera",this.fov=t,this.zoom=1,this.near=n,this.far=r,this.focus=10,this.aspect=e,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}fs.prototype=Object.create(hi.prototype),fs.prototype.constructor=fs,fs.prototype.isShaderMaterial=!0,fs.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=hs(t.uniforms),this.defines=Object.assign({},t.defines),this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.lights=t.lights,this.clipping=t.clipping,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.extensions=Object.assign({},t.extensions),this.glslVersion=t.glslVersion,this},fs.prototype.toJSON=function(t){const e=hi.prototype.toJSON.call(this,t);e.glslVersion=this.glslVersion,e.uniforms={};for(const r in this.uniforms){const n=this.uniforms[r].value;n&&n.isTexture?e.uniforms[r]={type:"t",value:n.toJSON(t).uuid}:n&&n.isColor?e.uniforms[r]={type:"c",value:n.getHex()}:n&&n.isVector2?e.uniforms[r]={type:"v2",value:n.toArray()}:n&&n.isVector3?e.uniforms[r]={type:"v3",value:n.toArray()}:n&&n.isVector4?e.uniforms[r]={type:"v4",value:n.toArray()}:n&&n.isMatrix3?e.uniforms[r]={type:"m3",value:n.toArray()}:n&&n.isMatrix4?e.uniforms[r]={type:"m4",value:n.toArray()}:e.uniforms[r]={value:n}}Object.keys(this.defines).length>0&&(e.defines=this.defines),e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader;const n={};for(const r in this.extensions)!0===this.extensions[r]&&(n[r]=!0);return Object.keys(n).length>0&&(e.extensions=n),e},gs.prototype=Object.assign(Object.create(Xr.prototype),{constructor:gs,isCamera:!0,copy:function(t,e){return Xr.prototype.copy.call(this,t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this.projectionMatrixInverse.copy(t.projectionMatrixInverse),this},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Camera: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(-e[8],-e[9],-e[10]).normalize()},updateMatrixWorld:function(t){Xr.prototype.updateMatrixWorld.call(this,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()},updateWorldMatrix:function(t,e){Xr.prototype.updateWorldMatrix.call(this,t,e),this.matrixWorldInverse.copy(this.matrixWorld).invert()},clone:function(){return(new this.constructor).copy(this)}}),xs.prototype=Object.assign(Object.create(gs.prototype),{constructor:xs,isPerspectiveCamera:!0,copy:function(t,e){return gs.prototype.copy.call(this,t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this},setFocalLength:function(t){const e=.5*this.getFilmHeight()/t;this.fov=2*Fn.RAD2DEG*Math.atan(e),this.updateProjectionMatrix()},getFocalLength:function(){const t=Math.tan(.5*Fn.DEG2RAD*this.fov);return.5*this.getFilmHeight()/t},getEffectiveFOV:function(){return 2*Fn.RAD2DEG*Math.atan(Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(t,e,n,r,i,s){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){const t=this.near;let e=t*Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom,n=2*e,r=this.aspect*n,i=-.5*r;const s=this.view;if(null!==this.view&&this.view.enabled){const t=s.fullWidth,o=s.fullHeight;i+=s.offsetX*r/t,e-=s.offsetY*n/o,r*=s.width/t,n*=s.height/o}const o=this.filmOffset;0!==o&&(i+=t*o/this.getFilmWidth()),this.projectionMatrix.makePerspective(i,i+r,e,e-n,t,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()},toJSON:function(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}});const vs=90,ys=1;class _s extends Xr{constructor(t,e,n){if(super(),this.type="CubeCamera",!0!==n.isWebGLCubeRenderTarget)return void console.error("THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.");this.renderTarget=n;const r=new xs(vs,ys,t,e);r.layers=this.layers,r.up.set(0,-1,0),r.lookAt(new Yn(1,0,0)),this.add(r);const i=new xs(vs,ys,t,e);i.layers=this.layers,i.up.set(0,-1,0),i.lookAt(new Yn(-1,0,0)),this.add(i);const s=new xs(vs,ys,t,e);s.layers=this.layers,s.up.set(0,0,1),s.lookAt(new Yn(0,1,0)),this.add(s);const o=new xs(vs,ys,t,e);o.layers=this.layers,o.up.set(0,0,-1),o.lookAt(new Yn(0,-1,0)),this.add(o);const a=new xs(vs,ys,t,e);a.layers=this.layers,a.up.set(0,-1,0),a.lookAt(new Yn(0,0,1)),this.add(a);const l=new xs(vs,ys,t,e);l.layers=this.layers,l.up.set(0,-1,0),l.lookAt(new Yn(0,0,-1)),this.add(l)}update(t,e){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget,[r,i,s,o,a,l]=this.children,c=t.xr.enabled,h=t.getRenderTarget();t.xr.enabled=!1;const u=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,t.setRenderTarget(n,0),t.render(e,r),t.setRenderTarget(n,1),t.render(e,i),t.setRenderTarget(n,2),t.render(e,s),t.setRenderTarget(n,3),t.render(e,o),t.setRenderTarget(n,4),t.render(e,a),n.texture.generateMipmaps=u,t.setRenderTarget(n,5),t.render(e,l),t.setRenderTarget(h),t.xr.enabled=c}}exports.CubeCamera=_s;class bs extends kn{constructor(t,e,n,r,i,s,o,a,l,c){super(t=void 0!==t?t:[],e=void 0!==e?e:nt,n,r,i,s,o=void 0!==o?o:Bt,a,l,c),this._needsFlipEnvMap=!0,this.flipY=!1}get images(){return this.image}set images(t){this.image=t}}exports.CubeTexture=bs,bs.prototype.isCubeTexture=!0;class ws extends jn{constructor(t,e,n){Number.isInteger(e)&&(console.warn("THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )"),e=n),super(t,t,e),e=e||{},this.texture=new bs(void 0,e.mapping,e.wrapS,e.wrapT,e.magFilter,e.minFilter,e.format,e.type,e.anisotropy,e.encoding),this.texture.generateMipmaps=void 0!==e.generateMipmaps&&e.generateMipmaps,this.texture.minFilter=void 0!==e.minFilter?e.minFilter:gt,this.texture._needsFlipEnvMap=!1}fromEquirectangularTexture(t,e){this.texture.type=e.type,this.texture.format=Nt,this.texture.encoding=e.encoding,this.texture.generateMipmaps=e.generateMipmaps,this.texture.minFilter=e.minFilter,this.texture.magFilter=e.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include <common>\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},r=new cs(5,5,5),i=new fs({name:"CubemapFromEquirect",uniforms:hs(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:p,blending:g});i.uniforms.tEquirect.value=e;const s=new os(r,i),o=e.minFilter;return e.minFilter===yt&&(e.minFilter=gt),new _s(1,10,this).update(t,s),e.minFilter=o,s.geometry.dispose(),s.material.dispose(),this}clear(t,e,n,r){const i=t.getRenderTarget();for(let s=0;s<6;s++)t.setRenderTarget(this,s),t.clear(e,n,r);t.setRenderTarget(i)}}exports.WebGLCubeRenderTarget=ws,ws.prototype.isWebGLCubeRenderTarget=!0;class Ms extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={data:t||null,width:e||1,height:n||1},this.magFilter=void 0!==l?l:ut,this.minFilter=void 0!==c?c:ut,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.needsUpdate=!0}}exports.DataTexture=Ms,Ms.prototype.isDataTexture=!0;const Ss=new dr,Ts=new Yn;class Es{constructor(t=new Qr,e=new Qr,n=new Qr,r=new Qr,i=new Qr,s=new Qr){this.planes=[t,e,n,r,i,s]}set(t,e,n,r,i,s){const o=this.planes;return o[0].copy(t),o[1].copy(e),o[2].copy(n),o[3].copy(r),o[4].copy(i),o[5].copy(s),this}copy(t){const e=this.planes;for(let n=0;n<6;n++)e[n].copy(t.planes[n]);return this}setFromProjectionMatrix(t){const e=this.planes,n=t.elements,r=n[0],i=n[1],s=n[2],o=n[3],a=n[4],l=n[5],c=n[6],h=n[7],u=n[8],p=n[9],d=n[10],m=n[11],f=n[12],g=n[13],x=n[14],v=n[15];return e[0].setComponents(o-r,h-a,m-u,v-f).normalize(),e[1].setComponents(o+r,h+a,m+u,v+f).normalize(),e[2].setComponents(o+i,h+l,m+p,v+g).normalize(),e[3].setComponents(o-i,h-l,m-p,v-g).normalize(),e[4].setComponents(o-s,h-c,m-d,v-x).normalize(),e[5].setComponents(o+s,h+c,m+d,v+x).normalize(),this}intersectsObject(t){const e=t.geometry;return null===e.boundingSphere&&e.computeBoundingSphere(),Ss.copy(e.boundingSphere).applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSprite(t){return Ss.center.set(0,0,0),Ss.radius=.7071067811865476,Ss.applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSphere(t){const e=this.planes,n=t.center,r=-t.radius;for(let i=0;i<6;i++){if(e[i].distanceToPoint(n)<r)return!1}return!0}intersectsBox(t){const e=this.planes;for(let n=0;n<6;n++){const r=e[n];if(Ts.x=r.normal.x>0?t.max.x:t.min.x,Ts.y=r.normal.y>0?t.max.y:t.min.y,Ts.z=r.normal.z>0?t.max.z:t.min.z,r.distanceToPoint(Ts)<0)return!1}return!0}containsPoint(t){const e=this.planes;for(let n=0;n<6;n++)if(e[n].distanceToPoint(t)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function As(){let t=null,e=!1,n=null,r=null;function i(e,s){n(e,s),r=t.requestAnimationFrame(i)}return{start:function(){!0!==e&&null!==n&&(r=t.requestAnimationFrame(i),e=!0)},stop:function(){t.cancelAnimationFrame(r),e=!1},setAnimationLoop:function(t){n=t},setContext:function(e){t=e}}}function Ls(t,e){const n=e.isWebGL2,r=new WeakMap;return{get:function(t){return t.isInterleavedBufferAttribute&&(t=t.data),r.get(t)},remove:function(e){e.isInterleavedBufferAttribute&&(e=e.data);const n=r.get(e);n&&(t.deleteBuffer(n.buffer),r.delete(e))},update:function(e,i){if(e.isGLBufferAttribute){const t=r.get(e);return void((!t||t.version<e.version)&&r.set(e,{buffer:e.buffer,type:e.type,bytesPerElement:e.elementSize,version:e.version}))}e.isInterleavedBufferAttribute&&(e=e.data);const s=r.get(e);void 0===s?r.set(e,function(e,r){const i=e.array,s=e.usage,o=t.createBuffer();t.bindBuffer(r,o),t.bufferData(r,i,s),e.onUploadCallback();let a=5126;return i instanceof Float32Array?a=5126:i instanceof Float64Array?console.warn("THREE.WebGLAttributes: Unsupported data buffer format: Float64Array."):i instanceof Uint16Array?e.isFloat16BufferAttribute?n?a=5131:console.warn("THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2."):a=5123:i instanceof Int16Array?a=5122:i instanceof Uint32Array?a=5125:i instanceof Int32Array?a=5124:i instanceof Int8Array?a=5120:i instanceof Uint8Array&&(a=5121),{buffer:o,type:a,bytesPerElement:i.BYTES_PER_ELEMENT,version:e.version}}(e,i)):s.version<e.version&&(function(e,r,i){const s=r.array,o=r.updateRange;t.bindBuffer(i,e),-1===o.count?t.bufferSubData(i,0,s):(n?t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s,o.offset,o.count):t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s.subarray(o.offset,o.offset+o.count)),o.count=-1)}(s.buffer,e,i),s.version=e.version)}}}exports.Frustum=Es;class Rs extends ki{constructor(t=1,e=1,n=1,r=1){super(),this.type="PlaneGeometry",this.parameters={width:t,height:e,widthSegments:n,heightSegments:r};const i=t/2,s=e/2,o=Math.floor(n),a=Math.floor(r),l=o+1,c=a+1,h=t/o,u=e/a,p=[],d=[],m=[],f=[];for(let g=0;g<c;g++){const t=g*u-s;for(let e=0;e<l;e++){const n=e*h-i;d.push(n,-t,0),m.push(0,0,1),f.push(e/o),f.push(1-g/a)}}for(let g=0;g<a;g++)for(let t=0;t<o;t++){const e=t+l*g,n=t+l*(g+1),r=t+1+l*(g+1),i=t+1+l*g;p.push(e,n,i),p.push(n,r,i)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.PlaneGeometry=exports.PlaneBufferGeometry=Rs;var Cs="#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif",Ps="#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",Ds="#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif",Is="#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif",Bs="#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",Ns="vec3 transformed = vec3( position );",Fs="vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif",Os="vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif",zs="#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif",Gs="#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",Hs="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",Us="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",ks="#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",Vs="#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif",Ws="#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif",js="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",qs="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",Xs="#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}",Ys="#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",Zs="vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",Js="#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",Qs="#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif",Ks="#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",$s="#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",to="gl_FragColor = linearToOutputTexel( gl_FragColor );",eo="\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}",no="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",ro="#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",io="#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",so="#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",oo="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",ao="#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif",lo="#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif",co="#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",ho="#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",uo="#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}",po="#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif",mo="#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",fo="vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif",go="uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif",xo="#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif",vo="ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",yo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)",_o="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",bo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)",wo="PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif",Mo="struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",So="\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",To="#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif",Eo="#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",Ao="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",Lo="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",Ro="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",Co="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",Po="#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif",Do="#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",Io="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",Bo="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",No="float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",Fo="#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",Oo="#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif",zo="#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif",Go="#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif",Ho="float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;",Uo="#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",ko="#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif",Vo="#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",Wo="#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif",jo="#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif",qo="vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}",Xo="#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",Yo="vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",Zo="#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",Jo="#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",Qo="float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",Ko="#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",$o="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",ta="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",ea="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif",na="float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",ra="#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",ia="#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif",sa="#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",oa="#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",aa="float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",la="#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",ca="#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",ha="#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",ua="#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif",pa="#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif",da="#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif",ma="#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif",fa="#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif",ga="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif",xa="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif",va="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif",ya="#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",_a="uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",ba="varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",wa="#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ma="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",Sa="#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",Ta="#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}",Ea="#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",Aa="#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}",La="uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ra="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}",Ca="uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Pa="uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",Da="uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ia="#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}",Ba="uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Na="#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Fa="#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Oa="#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}",za="#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ga="#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ha="#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ua="#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",ka="#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Va="#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Wa="#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}",ja="#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",qa="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Xa="uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}",Ya="uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Za="#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ja="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Qa="uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";const Ka={alphamap_fragment:Cs,alphamap_pars_fragment:Ps,alphatest_fragment:Ds,aomap_fragment:Is,aomap_pars_fragment:Bs,begin_vertex:Ns,beginnormal_vertex:Fs,bsdfs:Os,bumpmap_pars_fragment:zs,clipping_planes_fragment:Gs,clipping_planes_pars_fragment:Hs,clipping_planes_pars_vertex:Us,clipping_planes_vertex:ks,color_fragment:Vs,color_pars_fragment:Ws,color_pars_vertex:js,color_vertex:qs,common:Xs,cube_uv_reflection_fragment:Ys,defaultnormal_vertex:Zs,displacementmap_pars_vertex:Js,displacementmap_vertex:Qs,emissivemap_fragment:Ks,emissivemap_pars_fragment:$s,encodings_fragment:to,encodings_pars_fragment:eo,envmap_fragment:no,envmap_common_pars_fragment:ro,envmap_pars_fragment:io,envmap_pars_vertex:so,envmap_physical_pars_fragment:xo,envmap_vertex:oo,fog_vertex:ao,fog_pars_vertex:lo,fog_fragment:co,fog_pars_fragment:ho,gradientmap_pars_fragment:uo,lightmap_fragment:po,lightmap_pars_fragment:mo,lights_lambert_vertex:fo,lights_pars_begin:go,lights_toon_fragment:vo,lights_toon_pars_fragment:yo,lights_phong_fragment:_o,lights_phong_pars_fragment:bo,lights_physical_fragment:wo,lights_physical_pars_fragment:Mo,lights_fragment_begin:So,lights_fragment_maps:To,lights_fragment_end:Eo,logdepthbuf_fragment:Ao,logdepthbuf_pars_fragment:Lo,logdepthbuf_pars_vertex:Ro,logdepthbuf_vertex:Co,map_fragment:Po,map_pars_fragment:Do,map_particle_fragment:Io,map_particle_pars_fragment:Bo,metalnessmap_fragment:No,metalnessmap_pars_fragment:Fo,morphnormal_vertex:Oo,morphtarget_pars_vertex:zo,morphtarget_vertex:Go,normal_fragment_begin:Ho,normal_fragment_maps:Uo,normalmap_pars_fragment:ko,clearcoat_normal_fragment_begin:Vo,clearcoat_normal_fragment_maps:Wo,clearcoat_pars_fragment:jo,packing:qo,premultiplied_alpha_fragment:Xo,project_vertex:Yo,dithering_fragment:Zo,dithering_pars_fragment:Jo,roughnessmap_fragment:Qo,roughnessmap_pars_fragment:Ko,shadowmap_pars_fragment:$o,shadowmap_pars_vertex:ta,shadowmap_vertex:ea,shadowmask_pars_fragment:na,skinbase_vertex:ra,skinning_pars_vertex:ia,skinning_vertex:sa,skinnormal_vertex:oa,specularmap_fragment:aa,specularmap_pars_fragment:la,tonemapping_fragment:ca,tonemapping_pars_fragment:ha,transmissionmap_fragment:ua,transmissionmap_pars_fragment:pa,uv_pars_fragment:da,uv_pars_vertex:ma,uv_vertex:fa,uv2_pars_fragment:ga,uv2_pars_vertex:xa,uv2_vertex:va,worldpos_vertex:ya,background_frag:_a,background_vert:ba,cube_frag:wa,cube_vert:Ma,depth_frag:Sa,depth_vert:Ta,distanceRGBA_frag:Ea,distanceRGBA_vert:Aa,equirect_frag:La,equirect_vert:Ra,linedashed_frag:Ca,linedashed_vert:Pa,meshbasic_frag:Da,meshbasic_vert:Ia,meshlambert_frag:Ba,meshlambert_vert:Na,meshmatcap_frag:Fa,meshmatcap_vert:Oa,meshtoon_frag:za,meshtoon_vert:Ga,meshphong_frag:Ha,meshphong_vert:Ua,meshphysical_frag:ka,meshphysical_vert:Va,normal_frag:Wa,normal_vert:ja,points_frag:qa,points_vert:Xa,shadow_frag:Ya,shadow_vert:Za,sprite_frag:Ja,sprite_vert:Qa};exports.ShaderChunk=Ka;const $a={common:{diffuse:{value:new xi(15658734)},opacity:{value:1},map:{value:null},uvTransform:{value:new zn},uv2Transform:{value:new zn},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98},maxMipLevel:{value:0}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new On(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new xi(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new xi(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}},sprite:{diffuse:{value:new xi(15658734)},opacity:{value:1},center:{value:new On(.5,.5)},rotation:{value:0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}}};exports.UniformsLib=$a;const tl={basic:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.fog]),vertexShader:Ka.meshbasic_vert,fragmentShader:Ka.meshbasic_frag},lambert:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshlambert_vert,fragmentShader:Ka.meshlambert_frag},phong:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},specular:{value:new xi(1118481)},shininess:{value:30}}]),vertexShader:Ka.meshphong_vert,fragmentShader:Ka.meshphong_frag},standard:{uniforms:us([$a.common,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.roughnessmap,$a.metalnessmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag},toon:{uniforms:us([$a.common,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.gradientmap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshtoon_vert,fragmentShader:Ka.meshtoon_frag},matcap:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,{matcap:{value:null}}]),vertexShader:Ka.meshmatcap_vert,fragmentShader:Ka.meshmatcap_frag},points:{uniforms:us([$a.points,$a.fog]),vertexShader:Ka.points_vert,fragmentShader:Ka.points_frag},dashed:{uniforms:us([$a.common,$a.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:Ka.linedashed_vert,fragmentShader:Ka.linedashed_frag},depth:{uniforms:us([$a.common,$a.displacementmap]),vertexShader:Ka.depth_vert,fragmentShader:Ka.depth_frag},normal:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,{opacity:{value:1}}]),vertexShader:Ka.normal_vert,fragmentShader:Ka.normal_frag},sprite:{uniforms:us([$a.sprite,$a.fog]),vertexShader:Ka.sprite_vert,fragmentShader:Ka.sprite_frag},background:{uniforms:{uvTransform:{value:new zn},t2D:{value:null}},vertexShader:Ka.background_vert,fragmentShader:Ka.background_frag},cube:{uniforms:us([$a.envmap,{opacity:{value:1}}]),vertexShader:Ka.cube_vert,fragmentShader:Ka.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:Ka.equirect_vert,fragmentShader:Ka.equirect_frag},distanceRGBA:{uniforms:us([$a.common,$a.displacementmap,{referencePosition:{value:new Yn},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:Ka.distanceRGBA_vert,fragmentShader:Ka.distanceRGBA_frag},shadow:{uniforms:us([$a.lights,$a.fog,{color:{value:new xi(0)},opacity:{value:1}}]),vertexShader:Ka.shadow_vert,fragmentShader:Ka.shadow_frag}};function el(t,e,n,r,i){const s=new xi(0);let o,a,l=0,c=null,h=0,d=null;function m(t,e){n.buffers.color.setClear(t.r,t.g,t.b,e,i)}return{getClearColor:function(){return s},setClearColor:function(t,e=1){s.set(t),m(s,l=e)},getClearAlpha:function(){return l},setClearAlpha:function(t){m(s,l=t)},render:function(n,i,f,g){let x=!0===i.isScene?i.background:null;x&&x.isTexture&&(x=e.get(x));const v=t.xr,y=v.getSession&&v.getSession();y&&"additive"===y.environmentBlendMode&&(x=null),null===x?m(s,l):x&&x.isColor&&(m(x,1),g=!0),(t.autoClear||g)&&t.clear(t.autoClearColor,t.autoClearDepth,t.autoClearStencil),x&&(x.isCubeTexture||x.isWebGLCubeRenderTarget||x.mapping===ot)?(void 0===a&&((a=new os(new cs(1,1,1),new fs({name:"BackgroundCubeMaterial",uniforms:hs(tl.cube.uniforms),vertexShader:tl.cube.vertexShader,fragmentShader:tl.cube.fragmentShader,side:p,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),a.geometry.deleteAttribute("uv"),a.onBeforeRender=function(t,e,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(a.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(a)),x.isWebGLCubeRenderTarget&&(x=x.texture),a.material.uniforms.envMap.value=x,a.material.uniforms.flipEnvMap.value=x.isCubeTexture&&x._needsFlipEnvMap?-1:1,c===x&&h===x.version&&d===t.toneMapping||(a.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(a,a.geometry,a.material,0,0,null)):x&&x.isTexture&&(void 0===o&&((o=new os(new Rs(2,2),new fs({name:"BackgroundMaterial",uniforms:hs(tl.background.uniforms),vertexShader:tl.background.vertexShader,fragmentShader:tl.background.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),Object.defineProperty(o.material,"map",{get:function(){return this.uniforms.t2D.value}}),r.update(o)),o.material.uniforms.t2D.value=x,!0===x.matrixAutoUpdate&&x.updateMatrix(),o.material.uniforms.uvTransform.value.copy(x.matrix),c===x&&h===x.version&&d===t.toneMapping||(o.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(o,o.geometry,o.material,0,0,null))}}}function nl(t,e,n,r){const i=t.getParameter(34921),s=r.isWebGL2?null:e.get("OES_vertex_array_object"),o=r.isWebGL2||null!==s,a={},l=p(null);let c=l;function h(e){return r.isWebGL2?t.bindVertexArray(e):s.bindVertexArrayOES(e)}function u(e){return r.isWebGL2?t.deleteVertexArray(e):s.deleteVertexArrayOES(e)}function p(t){const e=[],n=[],r=[];for(let s=0;s<i;s++)e[s]=0,n[s]=0,r[s]=0;return{geometry:null,program:null,wireframe:!1,newAttributes:e,enabledAttributes:n,attributeDivisors:r,object:t,attributes:{},index:null}}function d(){const t=c.newAttributes;for(let e=0,n=t.length;e<n;e++)t[e]=0}function m(t){f(t,0)}function f(n,i){const s=c.newAttributes,o=c.enabledAttributes,a=c.attributeDivisors;if(s[n]=1,0===o[n]&&(t.enableVertexAttribArray(n),o[n]=1),a[n]!==i){(r.isWebGL2?t:e.get("ANGLE_instanced_arrays"))[r.isWebGL2?"vertexAttribDivisor":"vertexAttribDivisorANGLE"](n,i),a[n]=i}}function g(){const e=c.newAttributes,n=c.enabledAttributes;for(let r=0,i=n.length;r<i;r++)n[r]!==e[r]&&(t.disableVertexAttribArray(r),n[r]=0)}function x(e,n,i,s,o,a){!0!==r.isWebGL2||5124!==i&&5125!==i?t.vertexAttribPointer(e,n,i,s,o,a):t.vertexAttribIPointer(e,n,i,o,a)}function v(){y(),c!==l&&h((c=l).object)}function y(){l.geometry=null,l.program=null,l.wireframe=!1}return{setup:function(i,l,u,v,y){let _=!1;if(o){const e=function(e,n,i){const o=!0===i.wireframe;let l=a[e.id];void 0===l&&(l={},a[e.id]=l);let c=l[n.id];void 0===c&&(c={},l[n.id]=c);let h=c[o];return void 0===h&&(h=p(r.isWebGL2?t.createVertexArray():s.createVertexArrayOES()),c[o]=h),h}(v,u,l);c!==e&&h((c=e).object),(_=function(t,e){const n=c.attributes,r=t.attributes;let i=0;for(const s in r){const t=n[s],e=r[s];if(void 0===t)return!0;if(t.attribute!==e)return!0;if(t.data!==e.data)return!0;i++}return c.attributesNum!==i||c.index!==e}(v,y))&&function(t,e){const n={},r=t.attributes;let i=0;for(const s in r){const t=r[s],e={};e.attribute=t,t.data&&(e.data=t.data),n[s]=e,i++}c.attributes=n,c.attributesNum=i,c.index=e}(v,y)}else{const t=!0===l.wireframe;c.geometry===v.id&&c.program===u.id&&c.wireframe===t||(c.geometry=v.id,c.program=u.id,c.wireframe=t,_=!0)}!0===i.isInstancedMesh&&(_=!0),null!==y&&n.update(y,34963),_&&(function(i,s,o,a){if(!1===r.isWebGL2&&(i.isInstancedMesh||a.isInstancedBufferGeometry)&&null===e.get("ANGLE_instanced_arrays"))return;d();const l=a.attributes,c=o.getAttributes(),h=s.defaultAttributeValues;for(const e in c){const r=c[e];if(r>=0){const s=l[e];if(void 0!==s){const e=s.normalized,i=s.itemSize,o=n.get(s);if(void 0===o)continue;const l=o.buffer,c=o.type,h=o.bytesPerElement;if(s.isInterleavedBufferAttribute){const n=s.data,o=n.stride,u=s.offset;n&&n.isInstancedInterleavedBuffer?(f(r,n.meshPerAttribute),void 0===a._maxInstanceCount&&(a._maxInstanceCount=n.meshPerAttribute*n.count)):m(r),t.bindBuffer(34962,l),x(r,i,c,e,o*h,u*h)}else s.isInstancedBufferAttribute?(f(r,s.meshPerAttribute),void 0===a._maxInstanceCount&&(a._maxInstanceCount=s.meshPerAttribute*s.count)):m(r),t.bindBuffer(34962,l),x(r,i,c,e,0,0)}else if("instanceMatrix"===e){const e=n.get(i.instanceMatrix);if(void 0===e)continue;const s=e.buffer,o=e.type;f(r+0,1),f(r+1,1),f(r+2,1),f(r+3,1),t.bindBuffer(34962,s),t.vertexAttribPointer(r+0,4,o,!1,64,0),t.vertexAttribPointer(r+1,4,o,!1,64,16),t.vertexAttribPointer(r+2,4,o,!1,64,32),t.vertexAttribPointer(r+3,4,o,!1,64,48)}else if("instanceColor"===e){const e=n.get(i.instanceColor);if(void 0===e)continue;const s=e.buffer,o=e.type;f(r,1),t.bindBuffer(34962,s),t.vertexAttribPointer(r,3,o,!1,12,0)}else if(void 0!==h){const n=h[e];if(void 0!==n)switch(n.length){case 2:t.vertexAttrib2fv(r,n);break;case 3:t.vertexAttrib3fv(r,n);break;case 4:t.vertexAttrib4fv(r,n);break;default:t.vertexAttrib1fv(r,n)}}}}g()}(i,l,u,v),null!==y&&t.bindBuffer(34963,n.get(y).buffer))},reset:v,resetDefaultState:y,dispose:function(){v();for(const t in a){const e=a[t];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete a[t]}},releaseStatesOfGeometry:function(t){if(void 0===a[t.id])return;const e=a[t.id];for(const n in e){const t=e[n];for(const e in t)u(t[e].object),delete t[e];delete e[n]}delete a[t.id]},releaseStatesOfProgram:function(t){for(const e in a){const n=a[e];if(void 0===n[t.id])continue;const r=n[t.id];for(const t in r)u(r[t].object),delete r[t];delete n[t.id]}},initAttributes:d,enableAttribute:m,disableUnusedAttributes:g}}function rl(t,e,n,r){const i=r.isWebGL2;let s;this.setMode=function(t){s=t},this.render=function(e,r){t.drawArrays(s,e,r),n.update(r,s,1)},this.renderInstances=function(r,o,a){if(0===a)return;let l,c;if(i)l=t,c="drawArraysInstanced";else if(c="drawArraysInstancedANGLE",null===(l=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");l[c](s,r,o,a),n.update(o,s,a)}}function il(t,e,n){let r;function i(e){if("highp"===e){if(t.getShaderPrecisionFormat(35633,36338).precision>0&&t.getShaderPrecisionFormat(35632,36338).precision>0)return"highp";e="mediump"}return"mediump"===e&&t.getShaderPrecisionFormat(35633,36337).precision>0&&t.getShaderPrecisionFormat(35632,36337).precision>0?"mediump":"lowp"}const s="undefined"!=typeof WebGL2RenderingContext&&t instanceof WebGL2RenderingContext||"undefined"!=typeof WebGL2ComputeRenderingContext&&t instanceof WebGL2ComputeRenderingContext;let o=void 0!==n.precision?n.precision:"highp";const a=i(o);a!==o&&(console.warn("THREE.WebGLRenderer:",o,"not supported, using",a,"instead."),o=a);const l=!0===n.logarithmicDepthBuffer,c=t.getParameter(34930),h=t.getParameter(35660),u=t.getParameter(3379),p=t.getParameter(34076),d=t.getParameter(34921),m=t.getParameter(36347),f=t.getParameter(36348),g=t.getParameter(36349),x=h>0,v=s||e.has("OES_texture_float");return{isWebGL2:s,getMaxAnisotropy:function(){if(void 0!==r)return r;if(!0===e.has("EXT_texture_filter_anisotropic")){const n=e.get("EXT_texture_filter_anisotropic");r=t.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else r=0;return r},getMaxPrecision:i,precision:o,logarithmicDepthBuffer:l,maxTextures:c,maxVertexTextures:h,maxTextureSize:u,maxCubemapSize:p,maxAttributes:d,maxVertexUniforms:m,maxVaryings:f,maxFragmentUniforms:g,vertexTextures:x,floatFragmentTextures:v,floatVertexTextures:x&&v,maxSamples:s?t.getParameter(36183):0}}function sl(t){const e=this;let n=null,r=0,i=!1,s=!1;const o=new Qr,a=new zn,l={value:null,needsUpdate:!1};function c(){l.value!==n&&(l.value=n,l.needsUpdate=r>0),e.numPlanes=r,e.numIntersection=0}function h(t,n,r,i){const s=null!==t?t.length:0;let c=null;if(0!==s){if(c=l.value,!0!==i||null===c){const e=r+4*s,i=n.matrixWorldInverse;a.getNormalMatrix(i),(null===c||c.length<e)&&(c=new Float32Array(e));for(let n=0,l=r;n!==s;++n,l+=4)o.copy(t[n]).applyMatrix4(i,a),o.normal.toArray(c,l),c[l+3]=o.constant}l.value=c,l.needsUpdate=!0}return e.numPlanes=s,e.numIntersection=0,c}this.uniform=l,this.numPlanes=0,this.numIntersection=0,this.init=function(t,e,s){const o=0!==t.length||e||0!==r||i;return i=e,n=h(t,s,0),r=t.length,o},this.beginShadows=function(){s=!0,h(null)},this.endShadows=function(){s=!1,c()},this.setState=function(e,o,a){const u=e.clippingPlanes,p=e.clipIntersection,d=e.clipShadows,m=t.get(e);if(!i||null===u||0===u.length||s&&!d)s?h(null):c();else{const t=s?0:r,e=4*t;let i=m.clippingState||null;l.value=i,i=h(u,o,e,a);for(let r=0;r!==e;++r)i[r]=n[r];m.clippingState=i,this.numIntersection=p?this.numPlanes:0,this.numPlanes+=t}}}function ol(t){let e=new WeakMap;function n(t,e){return e===it?t.mapping=nt:e===st&&(t.mapping=rt),t}function r(t){const n=t.target;n.removeEventListener("dispose",r);const i=e.get(n);void 0!==i&&(e.delete(n),i.dispose())}return{get:function(i){if(i&&i.isTexture){const s=i.mapping;if(s===it||s===st){if(e.has(i))return n(e.get(i).texture,i.mapping);{const s=i.image;if(s&&s.height>0){const o=t.getRenderTarget(),a=new ws(s.height/2);return a.fromEquirectangularTexture(t,i),e.set(i,a),t.setRenderTarget(o),i.addEventListener("dispose",r),n(a.texture,i.mapping)}return null}}}return i},dispose:function(){e=new WeakMap}}}function al(t){const e={};function n(n){if(void 0!==e[n])return e[n];let r;switch(n){case"WEBGL_depth_texture":r=t.getExtension("WEBGL_depth_texture")||t.getExtension("MOZ_WEBGL_depth_texture")||t.getExtension("WEBKIT_WEBGL_depth_texture");break;case"EXT_texture_filter_anisotropic":r=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case"WEBGL_compressed_texture_s3tc":r=t.getExtension("WEBGL_compressed_texture_s3tc")||t.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case"WEBGL_compressed_texture_pvrtc":r=t.getExtension("WEBGL_compressed_texture_pvrtc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:r=t.getExtension(n)}return e[n]=r,r}return{has:function(t){return null!==n(t)},init:function(t){t.isWebGL2?n("EXT_color_buffer_float"):(n("WEBGL_depth_texture"),n("OES_texture_float"),n("OES_texture_half_float"),n("OES_texture_half_float_linear"),n("OES_standard_derivatives"),n("OES_element_index_uint"),n("OES_vertex_array_object"),n("ANGLE_instanced_arrays")),n("OES_texture_float_linear"),n("EXT_color_buffer_half_float")},get:function(t){const e=n(t);return null===e&&console.warn("THREE.WebGLRenderer: "+t+" extension not supported."),e}}}function ll(t,e,n,r){const i={},s=new WeakMap;function o(t){const a=t.target;null!==a.index&&e.remove(a.index);for(const n in a.attributes)e.remove(a.attributes[n]);a.removeEventListener("dispose",o),delete i[a.id];const l=s.get(a);l&&(e.remove(l),s.delete(a)),r.releaseStatesOfGeometry(a),!0===a.isInstancedBufferGeometry&&delete a._maxInstanceCount,n.memory.geometries--}function a(t){const n=[],r=t.index,i=t.attributes.position;let o=0;if(null!==r){const t=r.array;o=r.version;for(let e=0,r=t.length;e<r;e+=3){const r=t[e+0],i=t[e+1],s=t[e+2];n.push(r,i,i,s,s,r)}}else{const t=i.array;o=i.version;for(let e=0,r=t.length/3-1;e<r;e+=3){const t=e+0,r=e+1,i=e+2;n.push(t,r,r,i,i,t)}}const a=new(Di(n)>65535?Li:Ei)(n,1);a.version=o;const l=s.get(t);l&&e.remove(l),s.set(t,a)}return{get:function(t,e){return!0===i[e.id]?e:(e.addEventListener("dispose",o),i[e.id]=!0,n.memory.geometries++,e)},update:function(t){const n=t.attributes;for(const i in n)e.update(n[i],34962);const r=t.morphAttributes;for(const i in r){const t=r[i];for(let n=0,r=t.length;n<r;n++)e.update(t[n],34962)}},getWireframeAttribute:function(t){const e=s.get(t);if(e){const n=t.index;null!==n&&e.version<n.version&&a(t)}else a(t);return s.get(t)}}}function cl(t,e,n,r){const i=r.isWebGL2;let s,o,a;this.setMode=function(t){s=t},this.setIndex=function(t){o=t.type,a=t.bytesPerElement},this.render=function(e,r){t.drawElements(s,r,o,e*a),n.update(r,s,1)},this.renderInstances=function(r,l,c){if(0===c)return;let h,u;if(i)h=t,u="drawElementsInstanced";else if(u="drawElementsInstancedANGLE",null===(h=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");h[u](s,l,o,r*a,c),n.update(l,s,c)}}function hl(t){const e={frame:0,calls:0,triangles:0,points:0,lines:0};return{memory:{geometries:0,textures:0},render:e,programs:null,autoReset:!0,reset:function(){e.frame++,e.calls=0,e.triangles=0,e.points=0,e.lines=0},update:function(t,n,r){switch(e.calls++,n){case 4:e.triangles+=r*(t/3);break;case 1:e.lines+=r*(t/2);break;case 3:e.lines+=r*(t-1);break;case 2:e.lines+=r*t;break;case 0:e.points+=r*t;break;default:console.error("THREE.WebGLInfo: Unknown draw mode:",n)}}}}function ul(t,e){return t[0]-e[0]}function pl(t,e){return Math.abs(e[1])-Math.abs(t[1])}function dl(t){const e={},n=new Float32Array(8),r=[];for(let i=0;i<8;i++)r[i]=[i,0];return{update:function(i,s,o,a){const l=i.morphTargetInfluences,c=void 0===l?0:l.length;let h=e[s.id];if(void 0===h){h=[];for(let t=0;t<c;t++)h[t]=[t,0];e[s.id]=h}for(let t=0;t<c;t++){const e=h[t];e[0]=t,e[1]=l[t]}h.sort(pl);for(let t=0;t<8;t++)t<c&&h[t][1]?(r[t][0]=h[t][0],r[t][1]=h[t][1]):(r[t][0]=Number.MAX_SAFE_INTEGER,r[t][1]=0);r.sort(ul);const u=o.morphTargets&&s.morphAttributes.position,p=o.morphNormals&&s.morphAttributes.normal;let d=0;for(let t=0;t<8;t++){const e=r[t],i=e[0],o=e[1];i!==Number.MAX_SAFE_INTEGER&&o?(u&&s.getAttribute("morphTarget"+t)!==u[i]&&s.setAttribute("morphTarget"+t,u[i]),p&&s.getAttribute("morphNormal"+t)!==p[i]&&s.setAttribute("morphNormal"+t,p[i]),n[t]=o,d+=o):(u&&!0===s.hasAttribute("morphTarget"+t)&&s.deleteAttribute("morphTarget"+t),p&&!0===s.hasAttribute("morphNormal"+t)&&s.deleteAttribute("morphNormal"+t),n[t]=0)}const m=s.morphTargetsRelative?1:1-d;a.getUniforms().setValue(t,"morphTargetBaseInfluence",m),a.getUniforms().setValue(t,"morphTargetInfluences",n)}}}function ml(t,e,n,r){let i=new WeakMap;function s(t){const e=t.target;e.removeEventListener("dispose",s),n.remove(e.instanceMatrix),null!==e.instanceColor&&n.remove(e.instanceColor)}return{update:function(t){const o=r.render.frame,a=t.geometry,l=e.get(t,a);return i.get(l)!==o&&(e.update(l),i.set(l,o)),t.isInstancedMesh&&(!1===t.hasEventListener("dispose",s)&&t.addEventListener("dispose",s),n.update(t.instanceMatrix,34962),null!==t.instanceColor&&n.update(t.instanceColor,34962)),l},dispose:function(){i=new WeakMap}}}exports.ShaderLib=tl,tl.physical={uniforms:us([tl.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatNormalScale:{value:new On(1,1)},clearcoatNormalMap:{value:null},sheen:{value:new xi(0)},transmission:{value:0},transmissionMap:{value:null}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag};class fl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture2DArray=fl,fl.prototype.isDataTexture2DArray=!0;class gl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture3D=gl,gl.prototype.isDataTexture3D=!0;const xl=new kn,vl=new fl,yl=new gl,_l=new bs,bl=[],wl=[],Ml=new Float32Array(16),Sl=new Float32Array(9),Tl=new Float32Array(4);function El(t,e,n){const r=t[0];if(r<=0||r>0)return t;const i=e*n;let s=bl[i];if(void 0===s&&(s=new Float32Array(i),bl[i]=s),0!==e){r.toArray(s,0);for(let r=1,i=0;r!==e;++r)i+=n,t[r].toArray(s,i)}return s}function Al(t,e){if(t.length!==e.length)return!1;for(let n=0,r=t.length;n<r;n++)if(t[n]!==e[n])return!1;return!0}function Ll(t,e){for(let n=0,r=e.length;n<r;n++)t[n]=e[n]}function Rl(t,e){let n=wl[e];void 0===n&&(n=new Int32Array(e),wl[e]=n);for(let r=0;r!==e;++r)n[r]=t.allocateTextureUnit();return n}function Cl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1f(this.addr,e),n[0]=e)}function Pl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y||(t.uniform2f(this.addr,e.x,e.y),n[0]=e.x,n[1]=e.y);else{if(Al(n,e))return;t.uniform2fv(this.addr,e),Ll(n,e)}}function Dl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z||(t.uniform3f(this.addr,e.x,e.y,e.z),n[0]=e.x,n[1]=e.y,n[2]=e.z);else if(void 0!==e.r)n[0]===e.r&&n[1]===e.g&&n[2]===e.b||(t.uniform3f(this.addr,e.r,e.g,e.b),n[0]=e.r,n[1]=e.g,n[2]=e.b);else{if(Al(n,e))return;t.uniform3fv(this.addr,e),Ll(n,e)}}function Il(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z&&n[3]===e.w||(t.uniform4f(this.addr,e.x,e.y,e.z,e.w),n[0]=e.x,n[1]=e.y,n[2]=e.z,n[3]=e.w);else{if(Al(n,e))return;t.uniform4fv(this.addr,e),Ll(n,e)}}function Bl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix2fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Tl.set(r),t.uniformMatrix2fv(this.addr,!1,Tl),Ll(n,r)}}function Nl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix3fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Sl.set(r),t.uniformMatrix3fv(this.addr,!1,Sl),Ll(n,r)}}function Fl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix4fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Ml.set(r),t.uniformMatrix4fv(this.addr,!1,Ml),Ll(n,r)}}function Ol(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTexture2D(e||xl,i)}function zl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture2DArray(e||vl,i)}function Gl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture3D(e||yl,i)}function Hl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTextureCube(e||_l,i)}function Ul(t,e){const n=this.cache;n[0]!==e&&(t.uniform1i(this.addr,e),n[0]=e)}function kl(t,e){const n=this.cache;Al(n,e)||(t.uniform2iv(this.addr,e),Ll(n,e))}function Vl(t,e){const n=this.cache;Al(n,e)||(t.uniform3iv(this.addr,e),Ll(n,e))}function Wl(t,e){const n=this.cache;Al(n,e)||(t.uniform4iv(this.addr,e),Ll(n,e))}function jl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1ui(this.addr,e),n[0]=e)}function ql(t){switch(t){case 5126:return Cl;case 35664:return Pl;case 35665:return Dl;case 35666:return Il;case 35674:return Bl;case 35675:return Nl;case 35676:return Fl;case 5124:case 35670:return Ul;case 35667:case 35671:return kl;case 35668:case 35672:return Vl;case 35669:case 35673:return Wl;case 5125:return jl;case 35678:case 36198:case 36298:case 36306:case 35682:return Ol;case 35679:case 36299:case 36307:return Gl;case 35680:case 36300:case 36308:case 36293:return Hl;case 36289:case 36303:case 36311:case 36292:return zl}}function Xl(t,e){t.uniform1fv(this.addr,e)}function Yl(t,e){t.uniform1iv(this.addr,e)}function Zl(t,e){t.uniform2iv(this.addr,e)}function Jl(t,e){t.uniform3iv(this.addr,e)}function Ql(t,e){t.uniform4iv(this.addr,e)}function Kl(t,e){const n=El(e,this.size,2);t.uniform2fv(this.addr,n)}function $l(t,e){const n=El(e,this.size,3);t.uniform3fv(this.addr,n)}function tc(t,e){const n=El(e,this.size,4);t.uniform4fv(this.addr,n)}function ec(t,e){const n=El(e,this.size,4);t.uniformMatrix2fv(this.addr,!1,n)}function nc(t,e){const n=El(e,this.size,9);t.uniformMatrix3fv(this.addr,!1,n)}function rc(t,e){const n=El(e,this.size,16);t.uniformMatrix4fv(this.addr,!1,n)}function ic(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTexture2D(e[s]||xl,i[s])}function sc(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTextureCube(e[s]||_l,i[s])}function oc(t){switch(t){case 5126:return Xl;case 35664:return Kl;case 35665:return $l;case 35666:return tc;case 35674:return ec;case 35675:return nc;case 35676:return rc;case 5124:case 35670:return Yl;case 35667:case 35671:return Zl;case 35668:case 35672:return Jl;case 35669:case 35673:return Ql;case 35678:case 36198:case 36298:case 36306:case 35682:return ic;case 35680:case 36300:case 36308:case 36293:return sc}}function ac(t,e,n){this.id=t,this.addr=n,this.cache=[],this.setValue=ql(e.type)}function lc(t,e,n){this.id=t,this.addr=n,this.cache=[],this.size=e.size,this.setValue=oc(e.type)}function cc(t){this.id=t,this.seq=[],this.map={}}lc.prototype.updateCache=function(t){const e=this.cache;t instanceof Float32Array&&e.length!==t.length&&(this.cache=new Float32Array(t.length)),Ll(e,t)},cc.prototype.setValue=function(t,e,n){const r=this.seq;for(let i=0,s=r.length;i!==s;++i){const s=r[i];s.setValue(t,e[s.id],n)}};const hc=/(\w+)(\])?(\[|\.)?/g;function uc(t,e){t.seq.push(e),t.map[e.id]=e}function pc(t,e,n){const r=t.name,i=r.length;for(hc.lastIndex=0;;){const s=hc.exec(r),o=hc.lastIndex;let a=s[1];const l="]"===s[2],c=s[3];if(l&&(a|=0),void 0===c||"["===c&&o+2===i){uc(n,void 0===c?new ac(a,t,e):new lc(a,t,e));break}{let t=n.map[a];void 0===t&&uc(n,t=new cc(a)),n=t}}}function dc(t,e){this.seq=[],this.map={};const n=t.getProgramParameter(e,35718);for(let r=0;r<n;++r){const n=t.getActiveUniform(e,r);pc(n,t.getUniformLocation(e,n.name),this)}}function mc(t,e,n){const r=t.createShader(e);return t.shaderSource(r,n),t.compileShader(r),r}dc.prototype.setValue=function(t,e,n,r){const i=this.map[e];void 0!==i&&i.setValue(t,n,r)},dc.prototype.setOptional=function(t,e,n){const r=e[n];void 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DITHERING":"",Ka.encodings_pars_fragment,n.map?yc("mapTexelToLinear",n.mapEncoding):"",n.matcap?yc("matcapTexelToLinear",n.matcapEncoding):"",n.envMap?yc("envMapTexelToLinear",n.envMapEncoding):"",n.emissiveMap?yc("emissiveMapTexelToLinear",n.emissiveMapEncoding):"",n.lightMap?yc("lightMapTexelToLinear",n.lightMapEncoding):"",_c("linearToOutputTexel",n.outputEncoding),n.depthPacking?"#define DEPTH_PACKING "+n.depthPacking:"","\n"].filter(Tc).join("\n")),o=Ac(o=Ec(o=Rc(o),n),n),a=Ac(a=Ec(a=Rc(a),n),n),o=Ic(o),a=Ic(a),n.isWebGL2&&!0!==n.isRawShaderMaterial&&(v="#version 300 es\n",g=["#define attribute in","#define varying out","#define texture2D texture"].join("\n")+"\n"+g,x=["#define varying in",n.glslVersion===Dn?"":"out highp vec4 pc_fragColor;",n.glslVersion===Dn?"":"#define gl_FragColor pc_fragColor","#define gl_FragDepthEXT gl_FragDepth","#define texture2D texture","#define textureCube texture","#define texture2DProj textureProj","#define texture2DLodEXT textureLod","#define texture2DProjLodEXT textureProjLod","#define textureCubeLodEXT textureLod","#define texture2DGradEXT textureGrad","#define texture2DProjGradEXT textureProjGrad","#define textureCubeGradEXT textureGrad"].join("\n")+"\n"+x);const y=v+x+a,_=mc(i,35633,v+g+o),b=mc(i,35632,y);if(i.attachShader(f,_),i.attachShader(f,b),void 0!==n.index0AttributeName?i.bindAttribLocation(f,0,n.index0AttributeName):!0===n.morphTargets&&i.bindAttribLocation(f,0,"position"),i.linkProgram(f),t.debug.checkShaderErrors){const t=i.getProgramInfoLog(f).trim(),e=i.getShaderInfoLog(_).trim(),n=i.getShaderInfoLog(b).trim();let r=!0,s=!0;if(!1===i.getProgramParameter(f,35714)){r=!1;const e=vc(i,_,"vertex"),n=vc(i,b,"fragment");console.error("THREE.WebGLProgram: shader error: ",i.getError(),"35715",i.getProgramParameter(f,35715),"gl.getProgramInfoLog",t,e,n)}else""!==t?console.warn("THREE.WebGLProgram: 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f={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",MeshPhongMaterial:"phong",MeshToonMaterial:"toon",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",MeshMatcapMaterial:"matcap",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow",SpriteMaterial:"sprite"},g=["precision","isWebGL2","supportsVertexTextures","outputEncoding","instancing","instancingColor","map","mapEncoding","matcap","matcapEncoding","envMap","envMapMode","envMapEncoding","envMapCubeUV","lightMap","lightMapEncoding","aoMap","emissiveMap","emissiveMapEncoding","bumpMap","normalMap","objectSpaceNormalMap","tangentSpaceNormalMap","clearcoatMap","clearcoatRoughnessMap","clearcoatNormalMap","displacementMap","specularMap","roughnessMap","metalnessMap","gradientMap","alphaMap","combine","vertexColors","vertexTangents","vertexUvs","uvsVertexOnly","fog","useFog","fogExp2","flatShading","sizeAttenuation","logarithmicDepthBuffer","skinning","maxBones","useVertexTexture","morphTargets","morphNormals","maxMorphTargets","maxMorphNormals","premultipliedAlpha","numDirLights","numPointLights","numSpotLights","numHemiLights","numRectAreaLights","numDirLightShadows","numPointLightShadows","numSpotLightShadows","shadowMapEnabled","shadowMapType","toneMapping","physicallyCorrectLights","alphaTest","doubleSided","flipSided","numClippingPlanes","numClipIntersection","depthPacking","dithering","sheen","transmissionMap"];function x(t){let e;return t&&t.isTexture?e=t.encoding:t&&t.isWebGLRenderTarget?(console.warn("THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead."),e=t.texture.encoding):e=Xe,e}return{getParameters:function(i,o,g,v,y){const _=v.fog,b=i.isMeshStandardMaterial?v.environment:null,w=e.get(i.envMap||b),M=f[i.type],S=y.isSkinnedMesh?function(t){const e=t.skeleton.bones;if(c)return 1024;{const t=h,n=Math.floor((t-20)/4),r=Math.min(n,e.length);return r<e.length?(console.warn("THREE.WebGLRenderer: Skeleton has "+e.length+" bones. This GPU supports "+r+"."),0):r}}(y):0;let T,E;if(null!==i.precision&&(m=r.getMaxPrecision(i.precision))!==i.precision&&console.warn("THREE.WebGLProgram.getParameters:",i.precision,"not supported, using",m,"instead."),M){const t=tl[M];T=t.vertexShader,E=t.fragmentShader}else T=i.vertexShader,E=i.fragmentShader;const A=t.getRenderTarget();return{isWebGL2:a,shaderID:M,shaderName:i.type,vertexShader:T,fragmentShader:E,defines:i.defines,isRawShaderMaterial:!0===i.isRawShaderMaterial,glslVersion:i.glslVersion,precision:m,instancing:!0===y.isInstancedMesh,instancingColor:!0===y.isInstancedMesh&&null!==y.instanceColor,supportsVertexTextures:u,outputEncoding:null!==A?x(A.texture):t.outputEncoding,map:!!i.map,mapEncoding:x(i.map),matcap:!!i.matcap,matcapEncoding:x(i.matcap),envMap:!!w,envMapMode:w&&w.mapping,envMapEncoding:x(w),envMapCubeUV:!!w&&(w.mapping===ot||w.mapping===at),lightMap:!!i.lightMap,lightMapEncoding:x(i.lightMap),aoMap:!!i.aoMap,emissiveMap:!!i.emissiveMap,emissiveMapEncoding:x(i.emissiveMap),bumpMap:!!i.bumpMap,normalMap:!!i.normalMap,objectSpaceNormalMap:i.normalMapType===sn,tangentSpaceNormalMap:i.normalMapType===rn,clearcoatMap:!!i.clearcoatMap,clearcoatRoughnessMap:!!i.clearcoatRoughnessMap,clearcoatNormalMap:!!i.clearcoatNormalMap,displacementMap:!!i.displacementMap,roughnessMap:!!i.roughnessMap,metalnessMap:!!i.metalnessMap,specularMap:!!i.specularMap,alphaMap:!!i.alphaMap,gradientMap:!!i.gradientMap,sheen:!!i.sheen,transmissionMap:!!i.transmissionMap,combine:i.combine,vertexTangents:i.normalMap&&i.vertexTangents,vertexColors:i.vertexColors,vertexUvs:!!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatMap||i.clearcoatRoughnessMap||i.clearcoatNormalMap||i.displacementMap||i.transmissionMap),uvsVertexOnly:!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatNormalMap||i.transmissionMap||!i.displacementMap),fog:!!_,useFog:i.fog,fogExp2:_&&_.isFogExp2,flatShading:!!i.flatShading,sizeAttenuation:i.sizeAttenuation,logarithmicDepthBuffer:l,skinning:i.skinning&&S>0,maxBones:S,useVertexTexture:c,morphTargets:i.morphTargets,morphNormals:i.morphNormals,maxMorphTargets:t.maxMorphTargets,maxMorphNormals:t.maxMorphNormals,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numClippingPlanes:s.numPlanes,numClipIntersection:s.numIntersection,dithering:i.dithering,shadowMapEnabled:t.shadowMap.enabled&&g.length>0,shadowMapType:t.shadowMap.type,toneMapping:i.toneMapped?t.toneMapping:Z,physicallyCorrectLights:t.physicallyCorrectLights,premultipliedAlpha:i.premultipliedAlpha,alphaTest:i.alphaTest,doubleSided:i.side===d,flipSided:i.side===p,depthPacking:void 0!==i.depthPacking&&i.depthPacking,index0AttributeName:i.index0AttributeName,extensionDerivatives:i.extensions&&i.extensions.derivatives,extensionFragDepth:i.extensions&&i.extensions.fragDepth,extensionDrawBuffers:i.extensions&&i.extensions.drawBuffers,extensionShaderTextureLOD:i.extensions&&i.extensions.shaderTextureLOD,rendererExtensionFragDepth:a||n.has("EXT_frag_depth"),rendererExtensionDrawBuffers:a||n.has("WEBGL_draw_buffers"),rendererExtensionShaderTextureLod:a||n.has("EXT_shader_texture_lod"),customProgramCacheKey:i.customProgramCacheKey()}},getProgramCacheKey:function(e){const n=[];if(e.shaderID?n.push(e.shaderID):(n.push(e.fragmentShader),n.push(e.vertexShader)),void 0!==e.defines)for(const t in e.defines)n.push(t),n.push(e.defines[t]);if(!1===e.isRawShaderMaterial){for(let t=0;t<g.length;t++)n.push(e[g[t]]);n.push(t.outputEncoding),n.push(t.gammaFactor)}return n.push(e.customProgramCacheKey),n.join()},getUniforms:function(t){const e=f[t.type];let n;if(e){const 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t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:t.id-e.id}function qc(t){const e=[];let n=0;const r=[],i=[],s={id:-1};function o(r,i,o,a,l,c){let h=e[n];const u=t.get(o);return void 0===h?(h={id:r.id,object:r,geometry:i,material:o,program:u.program||s,groupOrder:a,renderOrder:r.renderOrder,z:l,group:c},e[n]=h):(h.id=r.id,h.object=r,h.geometry=i,h.material=o,h.program=u.program||s,h.groupOrder=a,h.renderOrder=r.renderOrder,h.z=l,h.group=c),n++,h}return{opaque:r,transparent:i,init:function(){n=0,r.length=0,i.length=0},push:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).push(c)},unshift:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).unshift(c)},finish:function(){for(let t=n,r=e.length;t<r;t++){const n=e[t];if(null===n.id)break;n.id=null,n.object=null,n.geometry=null,n.material=null,n.program=null,n.group=null}},sort:function(t,e){r.length>1&&r.sort(t||Wc),i.length>1&&i.sort(e||jc)}}}function Xc(t){let e=new WeakMap;return{get:function(n,r){let i;return!1===e.has(n)?(i=new qc(t),e.set(n,[i])):r>=e.get(n).length?(i=new qc(t),e.get(n).push(i)):i=e.get(n)[r],i},dispose:function(){e=new WeakMap}}}function Yc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":n={direction:new Yn,color:new xi};break;case"SpotLight":n={position:new Yn,direction:new Yn,color:new xi,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":n={position:new Yn,color:new xi,distance:0,decay:0};break;case"HemisphereLight":n={direction:new Yn,skyColor:new xi,groundColor:new xi};break;case"RectAreaLight":n={color:new xi,position:new Yn,halfWidth:new Yn,halfHeight:new Yn}}return t[e.id]=n,n}}}function Zc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":case"SpotLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On};break;case"PointLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On,shadowCameraNear:1,shadowCameraFar:1e3}}return t[e.id]=n,n}}}let Jc=0;function Qc(t,e){return(e.castShadow?1:0)-(t.castShadow?1:0)}function Kc(t,e){const n=new Yc,r=Zc(),i={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadow:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]};for(let l=0;l<9;l++)i.probe.push(new Yn);const s=new Yn,o=new wr,a=new wr;return{setup:function(s){let o=0,a=0,l=0;for(let t=0;t<9;t++)i.probe[t].set(0,0,0);let c=0,h=0,u=0,p=0,d=0,m=0,f=0,g=0;s.sort(Qc);for(let t=0,e=s.length;t<e;t++){const e=s[t],x=e.color,v=e.intensity,y=e.distance,_=e.shadow&&e.shadow.map?e.shadow.map.texture:null;if(e.isAmbientLight)o+=x.r*v,a+=x.g*v,l+=x.b*v;else if(e.isLightProbe)for(let t=0;t<9;t++)i.probe[t].addScaledVector(e.sh.coefficients[t],v);else if(e.isDirectionalLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.directionalShadow[c]=n,i.directionalShadowMap[c]=_,i.directionalShadowMatrix[c]=e.shadow.matrix,m++}i.directional[c]=t,c++}else if(e.isSpotLight){const t=n.get(e);if(t.position.setFromMatrixPosition(e.matrixWorld),t.color.copy(x).multiplyScalar(v),t.distance=y,t.coneCos=Math.cos(e.angle),t.penumbraCos=Math.cos(e.angle*(1-e.penumbra)),t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.spotShadow[u]=n,i.spotShadowMap[u]=_,i.spotShadowMatrix[u]=e.shadow.matrix,g++}i.spot[u]=t,u++}else if(e.isRectAreaLight){const t=n.get(e);t.color.copy(x).multiplyScalar(v),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),i.rectArea[p]=t,p++}else if(e.isPointLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),t.distance=e.distance,t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,n.shadowCameraNear=t.camera.near,n.shadowCameraFar=t.camera.far,i.pointShadow[h]=n,i.pointShadowMap[h]=_,i.pointShadowMatrix[h]=e.shadow.matrix,f++}i.point[h]=t,h++}else if(e.isHemisphereLight){const t=n.get(e);t.skyColor.copy(e.color).multiplyScalar(v),t.groundColor.copy(e.groundColor).multiplyScalar(v),i.hemi[d]=t,d++}}p>0&&(e.isWebGL2?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_float_linear")?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_half_float_linear")?(i.rectAreaLTC1=$a.LTC_HALF_1,i.rectAreaLTC2=$a.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.")),i.ambient[0]=o,i.ambient[1]=a,i.ambient[2]=l;const x=i.hash;x.directionalLength===c&&x.pointLength===h&&x.spotLength===u&&x.rectAreaLength===p&&x.hemiLength===d&&x.numDirectionalShadows===m&&x.numPointShadows===f&&x.numSpotShadows===g||(i.directional.length=c,i.spot.length=u,i.rectArea.length=p,i.point.length=h,i.hemi.length=d,i.directionalShadow.length=m,i.directionalShadowMap.length=m,i.pointShadow.length=f,i.pointShadowMap.length=f,i.spotShadow.length=g,i.spotShadowMap.length=g,i.directionalShadowMatrix.length=m,i.pointShadowMatrix.length=f,i.spotShadowMatrix.length=g,x.directionalLength=c,x.pointLength=h,x.spotLength=u,x.rectAreaLength=p,x.hemiLength=d,x.numDirectionalShadows=m,x.numPointShadows=f,x.numSpotShadows=g,i.version=Jc++)},setupView:function(t,e){let n=0,r=0,l=0,c=0,h=0;const u=e.matrixWorldInverse;for(let p=0,d=t.length;p<d;p++){const e=t[p];if(e.isDirectionalLight){const t=i.directional[n];t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),n++}else if(e.isSpotLight){const t=i.spot[l];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),l++}else if(e.isRectAreaLight){const t=i.rectArea[c];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),a.identity(),o.copy(e.matrixWorld),o.premultiply(u),a.extractRotation(o),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),t.halfWidth.applyMatrix4(a),t.halfHeight.applyMatrix4(a),c++}else if(e.isPointLight){const t=i.point[r];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),r++}else if(e.isHemisphereLight){const t=i.hemi[h];t.direction.setFromMatrixPosition(e.matrixWorld),t.direction.transformDirection(u),t.direction.normalize(),h++}}},state:i}}function $c(t,e){const n=new Kc(t,e),r=[],i=[];return{init:function(){r.length=0,i.length=0},state:{lightsArray:r,shadowsArray:i,lights:n},setupLights:function(){n.setup(r)},setupLightsView:function(t){n.setupView(r,t)},pushLight:function(t){r.push(t)},pushShadow:function(t){i.push(t)}}}function th(t,e){let n=new WeakMap;return{get:function(r,i=0){let s;return!1===n.has(r)?(s=new $c(t,e),n.set(r,[s])):i>=n.get(r).length?(s=new $c(t,e),n.get(r).push(s)):s=n.get(r)[i],s},dispose:function(){n=new WeakMap}}}class eh extends hi{constructor(t){super(),this.type="MeshDepthMaterial",this.depthPacking=en,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.depthPacking=t.depthPacking,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this}}exports.MeshDepthMaterial=eh,eh.prototype.isMeshDepthMaterial=!0;class nh extends hi{constructor(t){super(),this.type="MeshDistanceMaterial",this.referencePosition=new Yn,this.nearDistance=1,this.farDistance=1e3,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.referencePosition.copy(t.referencePosition),this.nearDistance=t.nearDistance,this.farDistance=t.farDistance,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this}}exports.MeshDistanceMaterial=nh,nh.prototype.isMeshDistanceMaterial=!0;var rh="uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}",ih="void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";function sh(t,e,n){let r=new Es;const i=new On,s=new On,o=new Wn,a=[],c=[],m={},f={0:p,1:u,2:d},x=new fs({defines:{SAMPLE_RATE:.25,HALF_SAMPLE_RATE:1/8},uniforms:{shadow_pass:{value:null},resolution:{value:new On},radius:{value:4}},vertexShader:ih,fragmentShader:rh}),v=x.clone();v.defines.HORIZONTAL_PASS=1;const y=new ki;y.setAttribute("position",new bi(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const _=new os(y,x),b=this;function w(n,r){const i=e.update(_);x.uniforms.shadow_pass.value=n.map.texture,x.uniforms.resolution.value=n.mapSize,x.uniforms.radius.value=n.radius,t.setRenderTarget(n.mapPass),t.clear(),t.renderBufferDirect(r,null,i,x,_,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,t.setRenderTarget(n.map),t.clear(),t.renderBufferDirect(r,null,i,v,_,null)}function M(t,e,n){const r=t<<0|e<<1|n<<2;let i=a[r];return void 0===i&&(i=new eh({depthPacking:nn,morphTargets:t,skinning:e}),a[r]=i),i}function S(t,e,n){const r=t<<0|e<<1|n<<2;let i=c[r];return void 0===i&&(i=new nh({morphTargets:t,skinning:e}),c[r]=i),i}function T(e,n,r,i,s,o,a){let l=null,c=M,u=e.customDepthMaterial;if(!0===i.isPointLight&&(c=S,u=e.customDistanceMaterial),void 0===u){let t=!1;!0===r.morphTargets&&(t=n.morphAttributes&&n.morphAttributes.position&&n.morphAttributes.position.length>0);let i=!1;!0===e.isSkinnedMesh&&(!0===r.skinning?i=!0:console.warn("THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:",e)),l=c(t,i,!0===e.isInstancedMesh)}else l=u;if(t.localClippingEnabled&&!0===r.clipShadows&&0!==r.clippingPlanes.length){const t=l.uuid,e=r.uuid;let n=m[t];void 0===n&&(n={},m[t]=n);let i=n[e];void 0===i&&(i=l.clone(),n[e]=i),l=i}return l.visible=r.visible,l.wireframe=r.wireframe,l.side=a===h?null!==r.shadowSide?r.shadowSide:r.side:null!==r.shadowSide?r.shadowSide:f[r.side],l.clipShadows=r.clipShadows,l.clippingPlanes=r.clippingPlanes,l.clipIntersection=r.clipIntersection,l.wireframeLinewidth=r.wireframeLinewidth,l.linewidth=r.linewidth,!0===i.isPointLight&&!0===l.isMeshDistanceMaterial&&(l.referencePosition.setFromMatrixPosition(i.matrixWorld),l.nearDistance=s,l.farDistance=o),l}function E(n,i,s,o,a){if(!1===n.visible)return;if(n.layers.test(i.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&a===h)&&(!n.frustumCulled||r.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(s.matrixWorldInverse,n.matrixWorld);const r=e.update(n),i=n.material;if(Array.isArray(i)){const e=r.groups;for(let l=0,c=e.length;l<c;l++){const c=e[l],h=i[c.materialIndex];if(h&&h.visible){const e=T(n,r,h,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,c)}}}else if(i.visible){const e=T(n,r,i,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,null)}}const l=n.children;for(let t=0,e=l.length;t<e;t++)E(l[t],i,s,o,a)}this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=l,this.render=function(e,a,l){if(!1===b.enabled)return;if(!1===b.autoUpdate&&!1===b.needsUpdate)return;if(0===e.length)return;const c=t.getRenderTarget(),u=t.getActiveCubeFace(),p=t.getActiveMipmapLevel(),d=t.state;d.setBlending(g),d.buffers.color.setClear(1,1,1,1),d.buffers.depth.setTest(!0),d.setScissorTest(!1);for(let m=0,f=e.length;m<f;m++){const c=e[m],u=c.shadow;if(void 0===u){console.warn("THREE.WebGLShadowMap:",c,"has no shadow.");continue}if(!1===u.autoUpdate&&!1===u.needsUpdate)continue;i.copy(u.mapSize);const p=u.getFrameExtents();if(i.multiply(p),s.copy(u.mapSize),(i.x>n||i.y>n)&&(i.x>n&&(s.x=Math.floor(n/p.x),i.x=s.x*p.x,u.mapSize.x=s.x),i.y>n&&(s.y=Math.floor(n/p.y),i.y=s.y*p.y,u.mapSize.y=s.y)),null===u.map&&!u.isPointLightShadow&&this.type===h){const t={minFilter:gt,magFilter:gt,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.mapPass=new jn(i.x,i.y,t),u.camera.updateProjectionMatrix()}if(null===u.map){const t={minFilter:ut,magFilter:ut,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.camera.updateProjectionMatrix()}t.setRenderTarget(u.map),t.clear();const f=u.getViewportCount();for(let t=0;t<f;t++){const e=u.getViewport(t);o.set(s.x*e.x,s.y*e.y,s.x*e.z,s.y*e.w),d.viewport(o),u.updateMatrices(c,t),r=u.getFrustum(),E(a,l,u.camera,c,this.type)}u.isPointLightShadow||this.type!==h||w(u,l),u.needsUpdate=!1}b.needsUpdate=!1,t.setRenderTarget(c,u,p)}}function oh(t,e,n){const o=n.isWebGL2;const a=new function(){let e=!1;const n=new Wn;let r=null;const i=new Wn(0,0,0,0);return{setMask:function(n){r===n||e||(t.colorMask(n,n,n,n),r=n)},setLocked:function(t){e=t},setClear:function(e,r,s,o,a){!0===a&&(e*=o,r*=o,s*=o),n.set(e,r,s,o),!1===i.equals(n)&&(t.clearColor(e,r,s,o),i.copy(n))},reset:function(){e=!1,r=null,i.set(-1,0,0,0)}}},l=new function(){let e=!1,n=null,r=null,i=null;return{setTest:function(t){t?mt(2929):ft(2929)},setMask:function(r){n===r||e||(t.depthMask(r),n=r)},setFunc:function(e){if(r!==e){if(e)switch(e){case z:t.depthFunc(512);break;case G:t.depthFunc(519);break;case H:t.depthFunc(513);break;case U:t.depthFunc(515);break;case k:t.depthFunc(514);break;case V:t.depthFunc(518);break;case W:t.depthFunc(516);break;case j:t.depthFunc(517);break;default:t.depthFunc(515)}else t.depthFunc(515);r=e}},setLocked:function(t){e=t},setClear:function(e){i!==e&&(t.clearDepth(e),i=e)},reset:function(){e=!1,n=null,r=null,i=null}}},c=new function(){let e=!1,n=null,r=null,i=null,s=null,o=null,a=null,l=null,c=null;return{setTest:function(t){e||(t?mt(2960):ft(2960))},setMask:function(r){n===r||e||(t.stencilMask(r),n=r)},setFunc:function(e,n,o){r===e&&i===n&&s===o||(t.stencilFunc(e,n,o),r=e,i=n,s=o)},setOp:function(e,n,r){o===e&&a===n&&l===r||(t.stencilOp(e,n,r),o=e,a=n,l=r)},setLocked:function(t){e=t},setClear:function(e){c!==e&&(t.clearStencil(e),c=e)},reset:function(){e=!1,n=null,r=null,i=null,s=null,o=null,a=null,l=null,c=null}}};let h={},u=null,m=!1,f=null,q=null,X=null,Y=null,Z=null,J=null,Q=null,K=!1,$=null,tt=null,et=null,nt=null,rt=null;const it=t.getParameter(35661);let st=!1,ot=0;const at=t.getParameter(7938);-1!==at.indexOf("WebGL")?(ot=parseFloat(/^WebGL (\d)/.exec(at)[1]),st=ot>=1):-1!==at.indexOf("OpenGL ES")&&(ot=parseFloat(/^OpenGL ES (\d)/.exec(at)[1]),st=ot>=2);let lt=null,ct={};const ht=new Wn,ut=new Wn;function pt(e,n,r){const i=new Uint8Array(4),s=t.createTexture();t.bindTexture(e,s),t.texParameteri(e,10241,9728),t.texParameteri(e,10240,9728);for(let o=0;o<r;o++)t.texImage2D(n+o,0,6408,1,1,0,6408,5121,i);return s}const dt={};function mt(e){!0!==h[e]&&(t.enable(e),h[e]=!0)}function ft(e){!1!==h[e]&&(t.disable(e),h[e]=!1)}dt[3553]=pt(3553,3553,1),dt[34067]=pt(34067,34069,6),a.setClear(0,0,0,1),l.setClear(1),c.setClear(0),mt(2929),l.setFunc(U),yt(!1),_t(i),mt(2884),vt(g);const gt={[w]:32774,[M]:32778,[S]:32779};if(o)gt[T]=32775,gt[E]=32776;else{const t=e.get("EXT_blend_minmax");null!==t&&(gt[T]=t.MIN_EXT,gt[E]=t.MAX_EXT)}const xt={[A]:0,[L]:1,[R]:768,[P]:770,[O]:776,[N]:774,[I]:772,[C]:769,[D]:771,[F]:775,[B]:773};function vt(e,n,r,i,s,o,a,l){if(e!==g){if(!1===m&&(mt(3042),m=!0),e===b)s=s||n,o=o||r,a=a||i,n===q&&s===Z||(t.blendEquationSeparate(gt[n],gt[s]),q=n,Z=s),r===X&&i===Y&&o===J&&a===Q||(t.blendFuncSeparate(xt[r],xt[i],xt[o],xt[a]),X=r,Y=i,J=o,Q=a),f=e,K=null;else if(e!==f||l!==K){if(q===w&&Z===w||(t.blendEquation(32774),q=w,Z=w),l)switch(e){case x:t.blendFuncSeparate(1,771,1,771);break;case v:t.blendFunc(1,1);break;case y:t.blendFuncSeparate(0,0,769,771);break;case _:t.blendFuncSeparate(0,768,0,770);break;default:console.error("THREE.WebGLState: Invalid blending: ",e)}else switch(e){case x:t.blendFuncSeparate(770,771,1,771);break;case v:t.blendFunc(770,1);break;case y:t.blendFunc(0,769);break;case _:t.blendFunc(0,768);break;default:console.error("THREE.WebGLState: Invalid blending: 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ah(t,e,n,r,i,s,o){const a=i.isWebGL2,l=i.maxTextures,c=i.maxCubemapSize,h=i.maxTextureSize,u=i.maxSamples,p=new WeakMap;let d,m=!1;try{m="undefined"!=typeof OffscreenCanvas&&null!==new OffscreenCanvas(1,1).getContext("2d")}catch(z){}function f(t,e){return m?new OffscreenCanvas(t,e):document.createElementNS("http://www.w3.org/1999/xhtml","canvas")}function g(t,e,n,r){let i=1;if((t.width>r||t.height>r)&&(i=r/Math.max(t.width,t.height)),i<1||!0===e){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const r=e?Fn.floorPowerOfTwo:Math.floor,s=r(i*t.width),o=r(i*t.height);void 0===d&&(d=f(s,o));const a=n?f(s,o):d;return a.width=s,a.height=o,a.getContext("2d").drawImage(t,0,0,s,o),console.warn("THREE.WebGLRenderer: Texture has been resized from ("+t.width+"x"+t.height+") to ("+s+"x"+o+")."),a}return"data"in t&&console.warn("THREE.WebGLRenderer: 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i=r.get(t);if(t.isVideoTexture&&function(t){const e=o.render.frame;p.get(t)!==e&&(p.set(t,e),t.update())}(t),t.version>0&&i.__version!==t.version){const n=t.image;if(void 0===n)console.warn("THREE.WebGLRenderer: Texture marked for update but image is undefined");else{if(!1!==n.complete)return void P(i,t,e);console.warn("THREE.WebGLRenderer: Texture marked for update but image is incomplete")}}n.activeTexture(33984+e),n.bindTexture(3553,i.__webglTexture)}function E(e,i){const o=r.get(e);e.version>0&&o.__version!==e.version?function(e,r,i){if(6!==r.image.length)return;C(e,r),n.activeTexture(33984+i),n.bindTexture(34067,e.__webglTexture),t.pixelStorei(37440,r.flipY),t.pixelStorei(37441,r.premultiplyAlpha),t.pixelStorei(3317,r.unpackAlignment),t.pixelStorei(37443,0);const o=r&&(r.isCompressedTexture||r.image[0].isCompressedTexture),l=r.image[0]&&r.image[0].isDataTexture,h=[];for(let t=0;t<6;t++)h[t]=o||l?l?r.image[t].image:r.image[t]:g(r.image[t],!1,!0,c);const 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uh,l[t]=e),e.getHandSpace()},this.setFramebufferScaleFactor=function(t){i=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(t){o=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return s},this.getSession=function(){return r},this.setSession=async function(t){if(null!==(r=t)){r.addEventListener("select",g),r.addEventListener("selectstart",g),r.addEventListener("selectend",g),r.addEventListener("squeeze",g),r.addEventListener("squeezestart",g),r.addEventListener("squeezeend",g),r.addEventListener("end",x),r.addEventListener("inputsourceschange",v);const t=e.getContextAttributes();!0!==t.xrCompatible&&await e.makeXRCompatible();const a={antialias:t.antialias,alpha:t.alpha,depth:t.depth,stencil:t.stencil,framebufferScaleFactor:i},l=new XRWebGLLayer(r,e,a);r.updateRenderState({baseLayer:l}),s=await 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r=e[t],s=n.getViewport(r),o=p[t];o.matrix.fromArray(r.transform.matrix),o.projectionMatrix.fromArray(r.projectionMatrix),o.viewport.set(s.x,s.y,s.width,s.height),0===t&&d.matrix.copy(o.matrix),!0===i&&d.cameras.push(o)}}const i=r.inputSources;for(let t=0;t<l.length;t++){const e=l[t],r=i[t];e.update(r,n,s)}w&&w(e,n)}),this.setAnimationLoop=function(t){w=t},this.dispose=function(){}}function dh(t){function e(e,n){e.opacity.value=n.opacity,n.color&&e.diffuse.value.copy(n.color),n.emissive&&e.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),n.map&&(e.map.value=n.map),n.alphaMap&&(e.alphaMap.value=n.alphaMap),n.specularMap&&(e.specularMap.value=n.specularMap);const r=t.get(n).envMap;if(r){e.envMap.value=r,e.flipEnvMap.value=r.isCubeTexture&&r._needsFlipEnvMap?-1:1,e.reflectivity.value=n.reflectivity,e.refractionRatio.value=n.refractionRatio;const i=t.get(r).__maxMipLevel;void 0!==i&&(e.maxMipLevel.value=i)}let i,s;n.lightMap&&(e.lightMap.value=n.lightMap,e.lightMapIntensity.value=n.lightMapIntensity),n.aoMap&&(e.aoMap.value=n.aoMap,e.aoMapIntensity.value=n.aoMapIntensity),n.map?i=n.map:n.specularMap?i=n.specularMap:n.displacementMap?i=n.displacementMap:n.normalMap?i=n.normalMap:n.bumpMap?i=n.bumpMap:n.roughnessMap?i=n.roughnessMap:n.metalnessMap?i=n.metalnessMap:n.alphaMap?i=n.alphaMap:n.emissiveMap?i=n.emissiveMap:n.clearcoatMap?i=n.clearcoatMap:n.clearcoatNormalMap?i=n.clearcoatNormalMap:n.clearcoatRoughnessMap&&(i=n.clearcoatRoughnessMap),void 0!==i&&(i.isWebGLRenderTarget&&(i=i.texture),!0===i.matrixAutoUpdate&&i.updateMatrix(),e.uvTransform.value.copy(i.matrix)),n.aoMap?s=n.aoMap:n.lightMap&&(s=n.lightMap),void 0!==s&&(s.isWebGLRenderTarget&&(s=s.texture),!0===s.matrixAutoUpdate&&s.updateMatrix(),e.uv2Transform.value.copy(s.matrix))}function n(e,n){e.roughness.value=n.roughness,e.metalness.value=n.metalness,n.roughnessMap&&(e.roughnessMap.value=n.roughnessMap),n.metalnessMap&&(e.metalnessMap.value=n.metalnessMap),n.emissiveMap&&(e.emissiveMap.value=n.emissiveMap),n.bumpMap&&(e.bumpMap.value=n.bumpMap,e.bumpScale.value=n.bumpScale,n.side===p&&(e.bumpScale.value*=-1)),n.normalMap&&(e.normalMap.value=n.normalMap,e.normalScale.value.copy(n.normalScale),n.side===p&&e.normalScale.value.negate()),n.displacementMap&&(e.displacementMap.value=n.displacementMap,e.displacementScale.value=n.displacementScale,e.displacementBias.value=n.displacementBias),t.get(n).envMap&&(e.envMapIntensity.value=n.envMapIntensity)}return{refreshFogUniforms:function(t,e){t.fogColor.value.copy(e.color),e.isFog?(t.fogNear.value=e.near,t.fogFar.value=e.far):e.isFogExp2&&(t.fogDensity.value=e.density)},refreshMaterialUniforms:function(t,r,i,s){r.isMeshBasicMaterial?e(t,r):r.isMeshLambertMaterial?(e(t,r),function(t,e){e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap)}(t,r)):r.isMeshToonMaterial?(e(t,r),function(t,e){e.gradientMap&&(t.gradientMap.value=e.gradientMap),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshPhongMaterial?(e(t,r),function(t,e){t.specular.value.copy(e.specular),t.shininess.value=Math.max(e.shininess,1e-4),e.emissiveMap&&(t.emissiveMap.value=e.emissiveMap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshStandardMaterial?(e(t,r),r.isMeshPhysicalMaterial?function(t,e){n(t,e),t.reflectivity.value=e.reflectivity,t.clearcoat.value=e.clearcoat,t.clearcoatRoughness.value=e.clearcoatRoughness,e.sheen&&t.sheen.value.copy(e.sheen),e.clearcoatMap&&(t.clearcoatMap.value=e.clearcoatMap),e.clearcoatRoughnessMap&&(t.clearcoatRoughnessMap.value=e.clearcoatRoughnessMap),e.clearcoatNormalMap&&(t.clearcoatNormalScale.value.copy(e.clearcoatNormalScale),t.clearcoatNormalMap.value=e.clearcoatNormalMap,e.side===p&&t.clearcoatNormalScale.value.negate()),t.transmission.value=e.transmission,e.transmissionMap&&(t.transmissionMap.value=e.transmissionMap)}(t,r):n(t,r)):r.isMeshMatcapMaterial?(e(t,r),function(t,e){e.matcap&&(t.matcap.value=e.matcap),e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshDepthMaterial?(e(t,r),function(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isMeshDistanceMaterial?(e(t,r),function(t,e){e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias),t.referencePosition.value.copy(e.referencePosition),t.nearDistance.value=e.nearDistance,t.farDistance.value=e.farDistance}(t,r)):r.isMeshNormalMaterial?(e(t,r),function(t,e){e.bumpMap&&(t.bumpMap.value=e.bumpMap,t.bumpScale.value=e.bumpScale,e.side===p&&(t.bumpScale.value*=-1)),e.normalMap&&(t.normalMap.value=e.normalMap,t.normalScale.value.copy(e.normalScale),e.side===p&&t.normalScale.value.negate()),e.displacementMap&&(t.displacementMap.value=e.displacementMap,t.displacementScale.value=e.displacementScale,t.displacementBias.value=e.displacementBias)}(t,r)):r.isLineBasicMaterial?(function(t,e){t.diffuse.value.copy(e.color),t.opacity.value=e.opacity}(t,r),r.isLineDashedMaterial&&function(t,e){t.dashSize.value=e.dashSize,t.totalSize.value=e.dashSize+e.gapSize,t.scale.value=e.scale}(t,r)):r.isPointsMaterial?function(t,e,n,r){let i;t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.size.value=e.size*n,t.scale.value=.5*r,e.map&&(t.map.value=e.map),e.alphaMap&&(t.alphaMap.value=e.alphaMap),e.map?i=e.map:e.alphaMap&&(i=e.alphaMap),void 0!==i&&(!0===i.matrixAutoUpdate&&i.updateMatrix(),t.uvTransform.value.copy(i.matrix))}(t,r,i,s):r.isSpriteMaterial?function(t,e){let n;t.diffuse.value.copy(e.color),t.opacity.value=e.opacity,t.rotation.value=e.rotation,e.map&&(t.map.value=e.map),e.alphaMap&&(t.alphaMap.value=e.alphaMap),e.map?n=e.map:e.alphaMap&&(n=e.alphaMap),void 0!==n&&(!0===n.matrixAutoUpdate&&n.updateMatrix(),t.uvTransform.value.copy(n.matrix))}(t,r):r.isShadowMaterial?(t.color.value.copy(r.color),t.opacity.value=r.opacity):r.isShaderMaterial&&(r.uniformsNeedUpdate=!1)}}}function mh(){const t=document.createElementNS("http://www.w3.org/1999/xhtml","canvas");return t.style.display="block",t}function fh(t){const e=void 0!==(t=t||{}).canvas?t.canvas:mh(),n=void 0!==t.context?t.context:null,r=void 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Mt(t,e,n,r,i,s){if(t.onBeforeRender(f,e,n,r,i,s),t.modelViewMatrix.multiplyMatrices(n.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),t.isImmediateRenderObject){const r=Tt(n,e,i,t);W.setMaterial(i),ct.reset(),function(t,e){t.render(function(t){f.renderBufferImmediate(t,e)})}(t,r)}else f.renderBufferDirect(n,e,r,i,t,s);t.onAfterRender(f,e,n,r,i,s)}function St(t,e,n){!0!==e.isScene&&(e=H);const r=q.get(t),i=p.state.lights,s=p.state.shadowsArray,o=i.state.version,a=$.getParameters(t,i.state,s,e,n),l=$.getProgramCacheKey(a);let c=r.program,h=!0;if(r.environment=t.isMeshStandardMaterial?e.environment:null,r.fog=e.fog,r.envMap=Y.get(t.envMap||r.environment),void 0===c)t.addEventListener("dispose",xt);else if(c.cacheKey!==l)vt(t);else if(r.lightsStateVersion!==o)h=!1;else{if(void 0!==a.shaderID)return;h=!1}h&&(a.uniforms=$.getUniforms(t),t.onBeforeCompile(a,f),c=$.acquireProgram(a,l),r.program=c,r.uniforms=a.uniforms,r.outputEncoding=a.outputEncoding);const u=r.uniforms;(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(r.numClippingPlanes=rt.numPlanes,r.numIntersection=rt.numIntersection,u.clippingPlanes=rt.uniform),r.needsLights=function(t){return t.isMeshLambertMaterial||t.isMeshToonMaterial||t.isMeshPhongMaterial||t.isMeshStandardMaterial||t.isShadowMaterial||t.isShaderMaterial&&!0===t.lights}(t),r.lightsStateVersion=o,r.needsLights&&(u.ambientLightColor.value=i.state.ambient,u.lightProbe.value=i.state.probe,u.directionalLights.value=i.state.directional,u.directionalLightShadows.value=i.state.directionalShadow,u.spotLights.value=i.state.spot,u.spotLightShadows.value=i.state.spotShadow,u.rectAreaLights.value=i.state.rectArea,u.ltc_1.value=i.state.rectAreaLTC1,u.ltc_2.value=i.state.rectAreaLTC2,u.pointLights.value=i.state.point,u.pointLightShadows.value=i.state.pointShadow,u.hemisphereLights.value=i.state.hemi,u.directionalShadowMap.value=i.state.directionalShadowMap,u.directionalShadowMatrix.value=i.state.directionalShadowMatrix,u.spotShadowMap.value=i.state.spotShadowMap,u.spotShadowMatrix.value=i.state.spotShadowMatrix,u.pointShadowMap.value=i.state.pointShadowMap,u.pointShadowMatrix.value=i.state.pointShadowMatrix);const d=r.program.getUniforms(),m=dc.seqWithValue(d.seq,u);r.uniformsList=m}function Tt(t,e,n,r){!0!==e.isScene&&(e=H),X.resetTextureUnits();const i=e.fog,s=n.isMeshStandardMaterial?e.environment:null,o=null===_?f.outputEncoding:_.texture.encoding,a=Y.get(n.envMap||s),l=q.get(n),c=p.state.lights;if(!0===F&&(!0===O||t!==M)){const e=t===M&&n.id===w;rt.setState(n,t,e)}n.version===l.__version?n.fog&&l.fog!==i?St(n,e,r):l.environment!==s?St(n,e,r):l.needsLights&&l.lightsStateVersion!==c.state.version?St(n,e,r):void 0===l.numClippingPlanes||l.numClippingPlanes===rt.numPlanes&&l.numIntersection===rt.numIntersection?l.outputEncoding!==o?St(n,e,r):l.envMap!==a&&St(n,e,r):St(n,e,r):(St(n,e,r),l.__version=n.version);let h=!1,u=!1,d=!1;const m=l.program,g=m.getUniforms(),x=l.uniforms;if(W.useProgram(m.program)&&(h=!0,u=!0,d=!0),n.id!==w&&(w=n.id,u=!0),h||M!==t){if(g.setValue(ht,"projectionMatrix",t.projectionMatrix),V.logarithmicDepthBuffer&&g.setValue(ht,"logDepthBufFC",2/(Math.log(t.far+1)/Math.LN2)),M!==t&&(M=t,u=!0,d=!0),n.isShaderMaterial||n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshStandardMaterial||n.envMap){const e=g.map.cameraPosition;void 0!==e&&e.setValue(ht,G.setFromMatrixPosition(t.matrixWorld))}(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial)&&g.setValue(ht,"isOrthographic",!0===t.isOrthographicCamera),(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial||n.isShadowMaterial||n.skinning)&&g.setValue(ht,"viewMatrix",t.matrixWorldInverse)}if(n.skinning){g.setOptional(ht,r,"bindMatrix"),g.setOptional(ht,r,"bindMatrixInverse");const t=r.skeleton;if(t){const e=t.bones;if(V.floatVertexTextures){if(null===t.boneTexture){let n=Math.sqrt(4*e.length);n=Fn.ceilPowerOfTwo(n),n=Math.max(n,4);const r=new Float32Array(n*n*4);r.set(t.boneMatrices);const i=new Ms(r,n,n,Nt,At);t.boneMatrices=r,t.boneTexture=i,t.boneTextureSize=n}g.setValue(ht,"boneTexture",t.boneTexture,X),g.setValue(ht,"boneTextureSize",t.boneTextureSize)}else g.setOptional(ht,t,"boneMatrices")}}var v,y;return(u||l.receiveShadow!==r.receiveShadow)&&(l.receiveShadow=r.receiveShadow,g.setValue(ht,"receiveShadow",r.receiveShadow)),u&&(g.setValue(ht,"toneMappingExposure",f.toneMappingExposure),l.needsLights&&(y=d,(v=x).ambientLightColor.needsUpdate=y,v.lightProbe.needsUpdate=y,v.directionalLights.needsUpdate=y,v.directionalLightShadows.needsUpdate=y,v.pointLights.needsUpdate=y,v.pointLightShadows.needsUpdate=y,v.spotLights.needsUpdate=y,v.spotLightShadows.needsUpdate=y,v.rectAreaLights.needsUpdate=y,v.hemisphereLights.needsUpdate=y),i&&n.fog&&tt.refreshFogUniforms(x,i),tt.refreshMaterialUniforms(x,n,R,L),dc.upload(ht,l.uniformsList,x,X)),n.isShaderMaterial&&!0===n.uniformsNeedUpdate&&(dc.upload(ht,l.uniformsList,x,X),n.uniformsNeedUpdate=!1),n.isSpriteMaterial&&g.setValue(ht,"center",r.center),g.setValue(ht,"modelViewMatrix",r.modelViewMatrix),g.setValue(ht,"normalMatrix",r.normalMatrix),g.setValue(ht,"modelMatrix",r.matrixWorld),m}_t.setAnimationLoop(function(t){dt.isPresenting||yt&&yt(t)}),"undefined"!=typeof window&&_t.setContext(window),this.setAnimationLoop=function(t){yt=t,dt.setAnimationLoop(t),null===t?_t.stop():_t.start()},this.render=function(t,e){let n,r;if(void 0!==arguments[2]&&(console.warn("THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead."),n=arguments[2]),void 0!==arguments[3]&&(console.warn("THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead."),r=arguments[3]),void 0!==e&&!0!==e.isCamera)return void console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");if(!0===g)return;ct.resetDefaultState(),w=-1,M=null,!0===t.autoUpdate&&t.updateMatrixWorld(),null===e.parent&&e.updateMatrixWorld(),!0===dt.enabled&&!0===dt.isPresenting&&(e=dt.getCamera(e)),!0===t.isScene&&t.onBeforeRender(f,t,e,n||_),(p=nt.get(t,m.length)).init(),m.push(p),z.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),N.setFromProjectionMatrix(z),O=this.localClippingEnabled,F=rt.init(this.clippingPlanes,O,e),(u=et.get(t,d.length)).init(),d.push(u),function t(e,n,r,i){if(!1===e.visible)return;const s=e.layers.test(n.layers);if(s)if(e.isGroup)r=e.renderOrder;else if(e.isLOD)!0===e.autoUpdate&&e.update(n);else if(e.isLight)p.pushLight(e),e.castShadow&&p.pushShadow(e);else if(e.isSprite){if(!e.frustumCulled||N.intersectsSprite(e)){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;n.visible&&u.push(e,t,n,r,G.z,null)}}else if(e.isImmediateRenderObject)i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z),u.push(e,null,e.material,r,G.z,null);else if((e.isMesh||e.isLine||e.isPoints)&&(e.isSkinnedMesh&&e.skeleton.frame!==j.render.frame&&(e.skeleton.update(),e.skeleton.frame=j.render.frame),!e.frustumCulled||N.intersectsObject(e))){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;if(Array.isArray(n)){const i=t.groups;for(let s=0,o=i.length;s<o;s++){const o=i[s],a=n[o.materialIndex];a&&a.visible&&u.push(e,t,a,r,G.z,o)}}else n.visible&&u.push(e,t,n,r,G.z,null)}const o=e.children;for(let a=0,l=o.length;a<l;a++)t(o[a],n,r,i)}(t,e,0,f.sortObjects),u.finish(),!0===f.sortObjects&&u.sort(C,P),!0===F&&rt.beginShadows();const i=p.state.shadowsArray;mt.render(i,t,e),p.setupLights(),p.setupLightsView(e),!0===F&&rt.endShadows(),!0===this.info.autoReset&&this.info.reset(),void 0!==n&&this.setRenderTarget(n),it.render(u,t,e,r);const s=u.opaque,o=u.transparent;s.length>0&&wt(s,t,e),o.length>0&&wt(o,t,e),!0===t.isScene&&t.onAfterRender(f,t,e),null!==_&&(X.updateRenderTargetMipmap(_),X.updateMultisampleRenderTarget(_)),W.buffers.depth.setTest(!0),W.buffers.depth.setMask(!0),W.buffers.color.setMask(!0),W.setPolygonOffset(!1),m.pop(),p=m.length>0?m[m.length-1]:null,d.pop(),u=d.length>0?d[d.length-1]:null},this.setFramebuffer=function(t){x!==t&&null===_&&ht.bindFramebuffer(36160,t),x=t},this.getActiveCubeFace=function(){return v},this.getActiveMipmapLevel=function(){return y},this.getRenderTarget=function(){return _},this.setRenderTarget=function(t,e=0,n=0){_=t,v=e,y=n,t&&void 0===q.get(t).__webglFramebuffer&&X.setupRenderTarget(t);let r=x,i=!1,s=!1;if(t){const n=t.texture;(n.isDataTexture3D||n.isDataTexture2DArray)&&(s=!0);const o=q.get(t).__webglFramebuffer;t.isWebGLCubeRenderTarget?(r=o[e],i=!0):r=t.isWebGLMultisampleRenderTarget?q.get(t).__webglMultisampledFramebuffer:o,S.copy(t.viewport),T.copy(t.scissor),E=t.scissorTest}else S.copy(D).multiplyScalar(R).floor(),T.copy(I).multiplyScalar(R).floor(),E=B;if(b!==r&&(ht.bindFramebuffer(36160,r),b=r),W.viewport(S),W.scissor(T),W.setScissorTest(E),i){const r=q.get(t.texture);ht.framebufferTexture2D(36160,36064,34069+e,r.__webglTexture,n)}else if(s){const r=q.get(t.texture),i=e||0;ht.framebufferTextureLayer(36160,36064,r.__webglTexture,n||0,i)}},this.readRenderTargetPixels=function(t,e,n,r,i,s,o){if(!t||!t.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let a=q.get(t).__webglFramebuffer;if(t.isWebGLCubeRenderTarget&&void 0!==o&&(a=a[o]),a){let o=!1;a!==b&&(ht.bindFramebuffer(36160,a),o=!0);try{const a=t.texture,l=a.format,c=a.type;if(l!==Nt&&lt.convert(l)!==ht.getParameter(35739))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const h=c===Lt&&(k.has("EXT_color_buffer_half_float")||V.isWebGL2&&k.has("EXT_color_buffer_float"));if(!(c===bt||lt.convert(c)===ht.getParameter(35738)||c===At&&(V.isWebGL2||k.has("OES_texture_float")||k.has("WEBGL_color_buffer_float"))||h))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");36053===ht.checkFramebufferStatus(36160)?e>=0&&e<=t.width-r&&n>=0&&n<=t.height-i&&ht.readPixels(e,n,r,i,lt.convert(l),lt.convert(c),s):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.")}finally{o&&ht.bindFramebuffer(36160,b)}}},this.copyFramebufferToTexture=function(t,e,n=0){const r=Math.pow(2,-n),i=Math.floor(e.image.width*r),s=Math.floor(e.image.height*r),o=lt.convert(e.format);X.setTexture2D(e,0),ht.copyTexImage2D(3553,n,o,t.x,t.y,i,s,0),W.unbindTexture()},this.copyTextureToTexture=function(t,e,n,r=0){const i=e.image.width,s=e.image.height,o=lt.convert(n.format),a=lt.convert(n.type);X.setTexture2D(n,0),ht.pixelStorei(37440,n.flipY),ht.pixelStorei(37441,n.premultiplyAlpha),ht.pixelStorei(3317,n.unpackAlignment),e.isDataTexture?ht.texSubImage2D(3553,r,t.x,t.y,i,s,o,a,e.image.data):e.isCompressedTexture?ht.compressedTexSubImage2D(3553,r,t.x,t.y,e.mipmaps[0].width,e.mipmaps[0].height,o,e.mipmaps[0].data):ht.texSubImage2D(3553,r,t.x,t.y,o,a,e.image),0===r&&n.generateMipmaps&&ht.generateMipmap(3553),W.unbindTexture()},this.copyTextureToTexture3D=function(t,e,n,r,i=0){if(f.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const{width:s,height:o,data:a}=n.image,l=lt.convert(r.format),c=lt.convert(r.type);let h;if(r.isDataTexture3D)X.setTexture3D(r,0),h=32879;else{if(!r.isDataTexture2DArray)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");X.setTexture2DArray(r,0),h=35866}ht.pixelStorei(37440,r.flipY),ht.pixelStorei(37441,r.premultiplyAlpha),ht.pixelStorei(3317,r.unpackAlignment);const u=ht.getParameter(3314),p=ht.getParameter(32878),d=ht.getParameter(3316),m=ht.getParameter(3315),g=ht.getParameter(32877);ht.pixelStorei(3314,s),ht.pixelStorei(32878,o),ht.pixelStorei(3316,t.min.x),ht.pixelStorei(3315,t.min.y),ht.pixelStorei(32877,t.min.z),ht.texSubImage3D(h,i,e.x,e.y,e.z,t.max.x-t.min.x+1,t.max.y-t.min.y+1,t.max.z-t.min.z+1,l,c,a),ht.pixelStorei(3314,u),ht.pixelStorei(32878,p),ht.pixelStorei(3316,d),ht.pixelStorei(3315,m),ht.pixelStorei(32877,g),0===i&&r.generateMipmaps&&ht.generateMipmap(h),W.unbindTexture()},this.initTexture=function(t){X.setTexture2D(t,0),W.unbindTexture()},this.resetState=function(){W.reset(),ct.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}exports.Group=hh,hh.prototype.isGroup=!0,Object.assign(uh.prototype,{constructor:uh,getHandSpace:function(){return null===this._hand&&(this._hand=new hh,this._hand.matrixAutoUpdate=!1,this._hand.visible=!1,this._hand.joints={},this._hand.inputState={pinching:!1}),this._hand},getTargetRaySpace:function(){return null===this._targetRay&&(this._targetRay=new hh,this._targetRay.matrixAutoUpdate=!1,this._targetRay.visible=!1),this._targetRay},getGripSpace:function(){return null===this._grip&&(this._grip=new hh,this._grip.matrixAutoUpdate=!1,this._grip.visible=!1),this._grip},dispatchEvent:function(t){return null!==this._targetRay&&this._targetRay.dispatchEvent(t),null!==this._grip&&this._grip.dispatchEvent(t),null!==this._hand&&this._hand.dispatchEvent(t),this},disconnect:function(t){return this.dispatchEvent({type:"disconnected",data:t}),null!==this._targetRay&&(this._targetRay.visible=!1),null!==this._grip&&(this._grip.visible=!1),null!==this._hand&&(this._hand.visible=!1),this},update:function(t,e,n){let r=null,i=null,s=null;const o=this._targetRay,a=this._grip,l=this._hand;if(t&&"visible-blurred"!==e.session.visibilityState)if(l&&t.hand){s=!0;for(const s of t.hand.values()){const t=e.getJointPose(s,n);if(void 0===l.joints[s.jointName]){const t=new hh;t.matrixAutoUpdate=!1,t.visible=!1,l.joints[s.jointName]=t,l.add(t)}const r=l.joints[s.jointName];null!==t&&(r.matrix.fromArray(t.transform.matrix),r.matrix.decompose(r.position,r.rotation,r.scale),r.jointRadius=t.radius),r.visible=null!==t}const r=l.joints["index-finger-tip"],i=l.joints["thumb-tip"],o=r.position.distanceTo(i.position),a=.02,c=.005;l.inputState.pinching&&o>a+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this})):!l.inputState.pinching&&o<=a-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this}))}else null!==o&&null!==(r=e.getPose(t.targetRaySpace,n))&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale)),null!==a&&t.gripSpace&&null!==(i=e.getPose(t.gripSpace,n))&&(a.matrix.fromArray(i.transform.matrix),a.matrix.decompose(a.position,a.rotation,a.scale));return null!==o&&(o.visible=null!==r),null!==a&&(a.visible=null!==i),null!==l&&(l.visible=null!==s),this}}),Object.assign(ph.prototype,In.prototype);class gh extends fh{}exports.WebGL1Renderer=gh,gh.prototype.isWebGL1Renderer=!0;class xh{constructor(t,e){this.name="",this.color=new xi(t),this.density=void 0!==e?e:25e-5}clone(){return new xh(this.color,this.density)}toJSON(){return{type:"FogExp2",color:this.color.getHex(),density:this.density}}}exports.FogExp2=xh,xh.prototype.isFogExp2=!0;class vh{constructor(t,e,n){this.name="",this.color=new xi(t),this.near=void 0!==e?e:1,this.far=void 0!==n?n:1e3}clone(){return new vh(this.color,this.near,this.far)}toJSON(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}}}exports.Fog=vh,vh.prototype.isFog=!0;class yh extends Xr{constructor(){super(),this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.overrideMaterial=null,this.autoUpdate=!0,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){return super.copy(t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.environment&&(this.environment=t.environment.clone()),null!==t.fog&&(this.fog=t.fog.clone()),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.autoUpdate=t.autoUpdate,this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){const e=super.toJSON(t);return null!==this.background&&(e.object.background=this.background.toJSON(t)),null!==this.environment&&(e.object.environment=this.environment.toJSON(t)),null!==this.fog&&(e.object.fog=this.fog.toJSON()),e}}function _h(t,e){this.array=t,this.stride=e,this.count=void 0!==t?t.length/e:0,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0,this.uuid=Fn.generateUUID()}exports.Scene=yh,yh.prototype.isScene=!0,Object.defineProperty(_h.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(_h.prototype,{isInterleavedBuffer:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.stride,n*=e.stride;for(let r=0,i=this.stride;r<i;r++)this.array[t+r]=e.array[n+r];return this},set:function(t,e=0){return this.array.set(t,e),this},clone:function(t){void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer);const e=new _h(new this.array.constructor(t.arrayBuffers[this.array.buffer._uuid]),this.stride);return e.setUsage(this.usage),e},onUpload:function(t){return this.onUploadCallback=t,this},toJSON:function(t){return void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=Array.prototype.slice.call(new Uint32Array(this.array.buffer))),{uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride}}});const bh=new Yn;function wh(t,e,n,r){this.name="",this.data=t,this.itemSize=e,this.offset=n,this.normalized=!0===r}Object.defineProperties(wh.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}},needsUpdate:{set:function(t){this.data.needsUpdate=t}}}),Object.assign(wh.prototype,{isInterleavedBufferAttribute:!0,applyMatrix4:function(t){for(let e=0,n=this.data.count;e<n;e++)bh.x=this.getX(e),bh.y=this.getY(e),bh.z=this.getZ(e),bh.applyMatrix4(t),this.setXYZ(e,bh.x,bh.y,bh.z);return this},setX:function(t,e){return this.data.array[t*this.data.stride+this.offset]=e,this},setY:function(t,e){return this.data.array[t*this.data.stride+this.offset+1]=e,this},setZ:function(t,e){return this.data.array[t*this.data.stride+this.offset+2]=e,this},setW:function(t,e){return this.data.array[t*this.data.stride+this.offset+3]=e,this},getX:function(t){return this.data.array[t*this.data.stride+this.offset]},getY:function(t){return this.data.array[t*this.data.stride+this.offset+1]},getZ:function(t){return this.data.array[t*this.data.stride+this.offset+2]},getW:function(t){return this.data.array[t*this.data.stride+this.offset+3]},setXY:function(t,e,n){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this.data.array[t+3]=i,this},clone:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return new bi(new this.array.constructor(t),this.itemSize,this.normalized)}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.clone(t)),new wh(t.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized)},toJSON:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return{itemSize:this.itemSize,type:this.array.constructor.name,array:t,normalized:this.normalized}}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}});class Mh extends hi{constructor(t){super(),this.type="SpriteMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.rotation=0,this.sizeAttenuation=!0,this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.rotation=t.rotation,this.sizeAttenuation=t.sizeAttenuation,this}}let Sh;exports.SpriteMaterial=Mh,Mh.prototype.isSpriteMaterial=!0;const Th=new Yn,Eh=new Yn,Ah=new Yn,Lh=new On,Rh=new On,Ch=new wr,Ph=new Yn,Dh=new Yn,Ih=new Yn,Bh=new On,Nh=new On,Fh=new On;class Oh extends Xr{constructor(t){if(super(),this.type="Sprite",void 0===Sh){Sh=new ki;const t=new _h(new Float32Array([-.5,-.5,0,0,0,.5,-.5,0,1,0,.5,.5,0,1,1,-.5,.5,0,0,1]),5);Sh.setIndex([0,1,2,0,2,3]),Sh.setAttribute("position",new wh(t,3,0,!1)),Sh.setAttribute("uv",new wh(t,2,3,!1))}this.geometry=Sh,this.material=void 0!==t?t:new Mh,this.center=new On(.5,.5)}raycast(t,e){null===t.camera&&console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.'),Eh.setFromMatrixScale(this.matrixWorld),Ch.copy(t.camera.matrixWorld),this.modelViewMatrix.multiplyMatrices(t.camera.matrixWorldInverse,this.matrixWorld),Ah.setFromMatrixPosition(this.modelViewMatrix),t.camera.isPerspectiveCamera&&!1===this.material.sizeAttenuation&&Eh.multiplyScalar(-Ah.z);const n=this.material.rotation;let r,i;0!==n&&(i=Math.cos(n),r=Math.sin(n));const s=this.center;zh(Ph.set(-.5,-.5,0),Ah,s,Eh,r,i),zh(Dh.set(.5,-.5,0),Ah,s,Eh,r,i),zh(Ih.set(.5,.5,0),Ah,s,Eh,r,i),Bh.set(0,0),Nh.set(1,0),Fh.set(1,1);let o=t.ray.intersectTriangle(Ph,Dh,Ih,!1,Th);if(null===o&&(zh(Dh.set(-.5,.5,0),Ah,s,Eh,r,i),Nh.set(0,1),null===(o=t.ray.intersectTriangle(Ph,Ih,Dh,!1,Th))))return;const a=t.ray.origin.distanceTo(Th);a<t.near||a>t.far||e.push({distance:a,point:Th.clone(),uv:li.getUV(Th,Ph,Dh,Ih,Bh,Nh,Fh,new On),face:null,object:this})}copy(t){return super.copy(t),void 0!==t.center&&this.center.copy(t.center),this.material=t.material,this}}function zh(t,e,n,r,i,s){Lh.subVectors(t,n).addScalar(.5).multiply(r),void 0!==i?(Rh.x=s*Lh.x-i*Lh.y,Rh.y=i*Lh.x+s*Lh.y):Rh.copy(Lh),t.copy(e),t.x+=Rh.x,t.y+=Rh.y,t.applyMatrix4(Ch)}exports.Sprite=Oh,Oh.prototype.isSprite=!0;const Gh=new Yn,Hh=new Yn;class Uh extends Xr{constructor(){super(),this._currentLevel=0,this.type="LOD",Object.defineProperties(this,{levels:{enumerable:!0,value:[]},isLOD:{value:!0}}),this.autoUpdate=!0}copy(t){super.copy(t,!1);const e=t.levels;for(let n=0,r=e.length;n<r;n++){const t=e[n];this.addLevel(t.object.clone(),t.distance)}return this.autoUpdate=t.autoUpdate,this}addLevel(t,e=0){e=Math.abs(e);const n=this.levels;let r;for(r=0;r<n.length&&!(e<n[r].distance);r++);return n.splice(r,0,{distance:e,object:t}),this.add(t),this}getCurrentLevel(){return this._currentLevel}getObjectForDistance(t){const e=this.levels;if(e.length>0){let n,r;for(n=1,r=e.length;n<r&&!(t<e[n].distance);n++);return e[n-1].object}return null}raycast(t,e){if(this.levels.length>0){Gh.setFromMatrixPosition(this.matrixWorld);const n=t.ray.origin.distanceTo(Gh);this.getObjectForDistance(n).raycast(t,e)}}update(t){const e=this.levels;if(e.length>1){Gh.setFromMatrixPosition(t.matrixWorld),Hh.setFromMatrixPosition(this.matrixWorld);const n=Gh.distanceTo(Hh)/t.zoom;let r,i;for(e[0].object.visible=!0,r=1,i=e.length;r<i&&n>=e[r].distance;r++)e[r-1].object.visible=!1,e[r].object.visible=!0;for(this._currentLevel=r-1;r<i;r++)e[r].object.visible=!1}}toJSON(t){const e=super.toJSON(t);!1===this.autoUpdate&&(e.object.autoUpdate=!1),e.object.levels=[];const n=this.levels;for(let r=0,i=n.length;r<i;r++){const t=n[r];e.object.levels.push({object:t.object.uuid,distance:t.distance})}return e}}exports.LOD=Uh;const kh=new Yn,Vh=new Wn,Wh=new Wn,jh=new Yn,qh=new wr;function Xh(t,e){os.call(this,t,e),this.type="SkinnedMesh",this.bindMode="attached",this.bindMatrix=new wr,this.bindMatrixInverse=new wr}function Yh(){Xr.call(this),this.type="Bone"}Xh.prototype=Object.assign(Object.create(os.prototype),{constructor:Xh,isSkinnedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.bindMode=t.bindMode,this.bindMatrix.copy(t.bindMatrix),this.bindMatrixInverse.copy(t.bindMatrixInverse),this.skeleton=t.skeleton,this},bind:function(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.copy(e).invert()},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){const t=new Wn,e=this.geometry.attributes.skinWeight;for(let n=0,r=e.count;n<r;n++){t.x=e.getX(n),t.y=e.getY(n),t.z=e.getZ(n),t.w=e.getW(n);const r=1/t.manhattanLength();r!==1/0?t.multiplyScalar(r):t.set(1,0,0,0),e.setXYZW(n,t.x,t.y,t.z,t.w)}},updateMatrixWorld:function(t){os.prototype.updateMatrixWorld.call(this,t),"attached"===this.bindMode?this.bindMatrixInverse.copy(this.matrixWorld).invert():"detached"===this.bindMode?this.bindMatrixInverse.copy(this.bindMatrix).invert():console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)},boneTransform:function(t,e){const n=this.skeleton,r=this.geometry;Vh.fromBufferAttribute(r.attributes.skinIndex,t),Wh.fromBufferAttribute(r.attributes.skinWeight,t),kh.fromBufferAttribute(r.attributes.position,t).applyMatrix4(this.bindMatrix),e.set(0,0,0);for(let i=0;i<4;i++){const t=Wh.getComponent(i);if(0!==t){const r=Vh.getComponent(i);qh.multiplyMatrices(n.bones[r].matrixWorld,n.boneInverses[r]),e.addScaledVector(jh.copy(kh).applyMatrix4(qh),t)}}return e.applyMatrix4(this.bindMatrixInverse)}}),Yh.prototype=Object.assign(Object.create(Xr.prototype),{constructor:Yh,isBone:!0});const Zh=new wr,Jh=new wr;class Qh{constructor(t=[],e=[]){this.uuid=Fn.generateUUID(),this.bones=t.slice(0),this.boneInverses=e,this.boneMatrices=null,this.boneTexture=null,this.boneTextureSize=0,this.frame=-1,this.init()}init(){const t=this.bones,e=this.boneInverses;if(this.boneMatrices=new Float32Array(16*t.length),0===e.length)this.calculateInverses();else if(t.length!==e.length){console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones."),this.boneInverses=[];for(let t=0,e=this.bones.length;t<e;t++)this.boneInverses.push(new wr)}}calculateInverses(){this.boneInverses.length=0;for(let t=0,e=this.bones.length;t<e;t++){const e=new wr;this.bones[t]&&e.copy(this.bones[t].matrixWorld).invert(),this.boneInverses.push(e)}}pose(){for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&e.matrixWorld.copy(this.boneInverses[t]).invert()}for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&(e.parent&&e.parent.isBone?(e.matrix.copy(e.parent.matrixWorld).invert(),e.matrix.multiply(e.matrixWorld)):e.matrix.copy(e.matrixWorld),e.matrix.decompose(e.position,e.quaternion,e.scale))}}update(){const t=this.bones,e=this.boneInverses,n=this.boneMatrices,r=this.boneTexture;for(let i=0,s=t.length;i<s;i++){const r=t[i]?t[i].matrixWorld:Jh;Zh.multiplyMatrices(r,e[i]),Zh.toArray(n,16*i)}null!==r&&(r.needsUpdate=!0)}clone(){return new Qh(this.bones,this.boneInverses)}getBoneByName(t){for(let e=0,n=this.bones.length;e<n;e++){const n=this.bones[e];if(n.name===t)return n}}dispose(){null!==this.boneTexture&&(this.boneTexture.dispose(),this.boneTexture=null)}fromJSON(t,e){this.uuid=t.uuid;for(let n=0,r=t.bones.length;n<r;n++){const r=t.bones[n];let i=e[r];void 0===i&&(console.warn("THREE.Skeleton: No bone found with UUID:",r),i=new Yh),this.bones.push(i),this.boneInverses.push((new wr).fromArray(t.boneInverses[n]))}return this.init(),this}toJSON(){const t={metadata:{version:4.5,type:"Skeleton",generator:"Skeleton.toJSON"},bones:[],boneInverses:[]};t.uuid=this.uuid;const e=this.bones,n=this.boneInverses;for(let r=0,i=e.length;r<i;r++){const i=e[r];t.bones.push(i.uuid);const s=n[r];t.boneInverses.push(s.toArray())}return t}}exports.Skeleton=Qh;const Kh=new wr,$h=new wr,tu=[],eu=new os;function nu(t,e,n){os.call(this,t,e),this.instanceMatrix=new bi(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.frustumCulled=!1}nu.prototype=Object.assign(Object.create(os.prototype),{constructor:nu,isInstancedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.instanceMatrix.copy(t.instanceMatrix),null!==t.instanceColor&&(this.instanceColor=t.instanceColor.clone()),this.count=t.count,this},getColorAt:function(t,e){e.fromArray(this.instanceColor.array,3*t)},getMatrixAt:function(t,e){e.fromArray(this.instanceMatrix.array,16*t)},raycast:function(t,e){const n=this.matrixWorld,r=this.count;if(eu.geometry=this.geometry,eu.material=this.material,void 0!==eu.material)for(let i=0;i<r;i++){this.getMatrixAt(i,Kh),$h.multiplyMatrices(n,Kh),eu.matrixWorld=$h,eu.raycast(t,tu);for(let t=0,n=tu.length;t<n;t++){const n=tu[t];n.instanceId=i,n.object=this,e.push(n)}tu.length=0}},setColorAt:function(t,e){null===this.instanceColor&&(this.instanceColor=new bi(new Float32Array(3*this.count),3)),e.toArray(this.instanceColor.array,3*t)},setMatrixAt:function(t,e){e.toArray(this.instanceMatrix.array,16*t)},updateMorphTargets:function(){},dispose:function(){this.dispatchEvent({type:"dispose"})}});class ru extends hi{constructor(t){super(),this.type="LineBasicMaterial",this.color=new xi(16777215),this.linewidth=1,this.linecap="round",this.linejoin="round",this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this.morphTargets=t.morphTargets,this}}exports.LineBasicMaterial=ru,ru.prototype.isLineBasicMaterial=!0;const iu=new Yn,su=new Yn,ou=new wr,au=new br,lu=new dr;function cu(t=new ki,e=new ru){Xr.call(this),this.type="Line",this.geometry=t,this.material=e,this.updateMorphTargets()}cu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:cu,isLine:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[0];for(let t=1,r=e.count;t<r;t++)iu.fromBufferAttribute(e,t-1),su.fromBufferAttribute(e,t),n[t]=n[t-1],n[t]+=iu.distanceTo(su);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Line.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),lu.copy(n.boundingSphere),lu.applyMatrix4(r),lu.radius+=i,!1===t.ray.intersectsSphere(lu))return;ou.copy(r).invert(),au.copy(t.ray).applyMatrix4(ou);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s,a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=this.isLineSegments?2:1;if(n.isBufferGeometry){const r=n.index,i=n.attributes.position;if(null!==r){const n=r.array;for(let r=0,s=n.length-1;r<s;r+=u){const s=n[r],u=n[r+1];if(a.fromBufferAttribute(i,s),l.fromBufferAttribute(i,u),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const p=t.ray.origin.distanceTo(h);p<t.near||p>t.far||e.push({distance:p,point:c.clone().applyMatrix4(this.matrixWorld),index:r,face:null,faceIndex:null,object:this})}}else for(let n=0,s=i.count-1;n<s;n+=u){if(a.fromBufferAttribute(i,n),l.fromBufferAttribute(i,n+1),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const r=t.ray.origin.distanceTo(h);r<t.near||r>t.far||e.push({distance:r,point:c.clone().applyMatrix4(this.matrixWorld),index:n,face:null,faceIndex:null,object:this})}}else n.isGeometry&&console.error("THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});const hu=new Yn,uu=new Yn;function pu(t,e){cu.call(this,t,e),this.type="LineSegments"}pu.prototype=Object.assign(Object.create(cu.prototype),{constructor:pu,isLineSegments:!0,computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[];for(let t=0,r=e.count;t<r;t+=2)hu.fromBufferAttribute(e,t),uu.fromBufferAttribute(e,t+1),n[t]=0===t?0:n[t-1],n[t+1]=n[t]+hu.distanceTo(uu);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this}});class du extends cu{constructor(t,e){super(t,e),this.type="LineLoop"}}exports.LineLoop=du,du.prototype.isLineLoop=!0;class mu extends hi{constructor(t){super(),this.type="PointsMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.size=1,this.sizeAttenuation=!0,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this.morphTargets=t.morphTargets,this}}exports.PointsMaterial=mu,mu.prototype.isPointsMaterial=!0;const fu=new wr,gu=new br,xu=new dr,vu=new Yn;function yu(t=new ki,e=new mu){Xr.call(this),this.type="Points",this.geometry=t,this.material=e,this.updateMorphTargets()}function _u(t,e,n,r,i,s,o){const a=gu.distanceSqToPoint(t);if(a<n){const n=new Yn;gu.closestPointToPoint(t,n),n.applyMatrix4(r);const l=i.ray.origin.distanceTo(n);if(l<i.near||l>i.far)return;s.push({distance:l,distanceToRay:Math.sqrt(a),point:n,index:e,face:null,object:o})}}yu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:yu,isPoints:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Points.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),xu.copy(n.boundingSphere),xu.applyMatrix4(r),xu.radius+=i,!1===t.ray.intersectsSphere(xu))return;fu.copy(r).invert(),gu.copy(t.ray).applyMatrix4(fu);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s;if(n.isBufferGeometry){const i=n.index,s=n.attributes.position;if(null!==i){const n=i.array;for(let i=0,a=n.length;i<a;i++){const a=n[i];vu.fromBufferAttribute(s,a),_u(vu,a,o,r,t,e,this)}}else for(let n=0,a=s.count;n<a;n++)vu.fromBufferAttribute(s,n),_u(vu,n,o,r,t,e,this)}else console.error("THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});class bu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.format=void 0!==o?o:Bt,this.minFilter=void 0!==s?s:gt,this.magFilter=void 0!==i?i:gt,this.generateMipmaps=!1;const c=this;"requestVideoFrameCallback"in t&&t.requestVideoFrameCallback(function e(){c.needsUpdate=!0,t.requestVideoFrameCallback(e)})}clone(){return new this.constructor(this.image).copy(this)}update(){const t=this.image;!1==="requestVideoFrameCallback"in t&&t.readyState>=t.HAVE_CURRENT_DATA&&(this.needsUpdate=!0)}}exports.VideoTexture=bu,bu.prototype.isVideoTexture=!0;class wu extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={width:e,height:n},this.mipmaps=t,this.flipY=!1,this.generateMipmaps=!1}}exports.CompressedTexture=wu,wu.prototype.isCompressedTexture=!0;class Mu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.needsUpdate=!0}}exports.CanvasTexture=Mu,Mu.prototype.isCanvasTexture=!0;class Su extends kn{constructor(t,e,n,r,i,s,o,a,l,c){if((c=void 0!==c?c:Gt)!==Gt&&c!==Ht)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===Gt&&(n=St),void 0===n&&c===Ht&&(n=Dt),super(null,r,i,s,o,a,c,n,l),this.image={width:t,height:e},this.magFilter=void 0!==o?o:ut,this.minFilter=void 0!==a?a:ut,this.flipY=!1,this.generateMipmaps=!1}}exports.DepthTexture=Su,Su.prototype.isDepthTexture=!0;class Tu extends ki{constructor(t=1,e=8,n=0,r=2*Math.PI){super(),this.type="CircleGeometry",this.parameters={radius:t,segments:e,thetaStart:n,thetaLength:r},e=Math.max(3,e);const i=[],s=[],o=[],a=[],l=new Yn,c=new On;s.push(0,0,0),o.push(0,0,1),a.push(.5,.5);for(let h=0,u=3;h<=e;h++,u+=3){const i=n+h/e*r;l.x=t*Math.cos(i),l.y=t*Math.sin(i),s.push(l.x,l.y,l.z),o.push(0,0,1),c.x=(s[u]/t+1)/2,c.y=(s[u+1]/t+1)/2,a.push(c.x,c.y)}for(let h=1;h<=e;h++)i.push(h,h+1,0);this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("normal",new Ci(o,3)),this.setAttribute("uv",new Ci(a,2))}}exports.CircleGeometry=exports.CircleBufferGeometry=Tu;class Eu extends ki{constructor(t=1,e=1,n=1,r=8,i=1,s=!1,o=0,a=2*Math.PI){super(),this.type="CylinderGeometry",this.parameters={radiusTop:t,radiusBottom:e,height:n,radialSegments:r,heightSegments:i,openEnded:s,thetaStart:o,thetaLength:a};const l=this;r=Math.floor(r),i=Math.floor(i);const c=[],h=[],u=[],p=[];let d=0;const m=[],f=n/2;let g=0;function x(n){const i=d,s=new On,m=new Yn;let x=0;const v=!0===n?t:e,y=!0===n?1:-1;for(let t=1;t<=r;t++)h.push(0,f*y,0),u.push(0,y,0),p.push(.5,.5),d++;const _=d;for(let t=0;t<=r;t++){const e=t/r*a+o,n=Math.cos(e),i=Math.sin(e);m.x=v*i,m.y=f*y,m.z=v*n,h.push(m.x,m.y,m.z),u.push(0,y,0),s.x=.5*n+.5,s.y=.5*i*y+.5,p.push(s.x,s.y),d++}for(let t=0;t<r;t++){const e=i+t,r=_+t;!0===n?c.push(r,r+1,e):c.push(r+1,r,e),x+=3}l.addGroup(g,x,!0===n?1:2),g+=x}!function(){const s=new Yn,x=new Yn;let v=0;const y=(e-t)/n;for(let l=0;l<=i;l++){const c=[],g=l/i,v=g*(e-t)+t;for(let t=0;t<=r;t++){const e=t/r,i=e*a+o,l=Math.sin(i),m=Math.cos(i);x.x=v*l,x.y=-g*n+f,x.z=v*m,h.push(x.x,x.y,x.z),s.set(l,y,m).normalize(),u.push(s.x,s.y,s.z),p.push(e,1-g),c.push(d++)}m.push(c)}for(let t=0;t<r;t++)for(let e=0;e<i;e++){const n=m[e][t],r=m[e+1][t],i=m[e+1][t+1],s=m[e][t+1];c.push(n,r,s),c.push(r,i,s),v+=6}l.addGroup(g,v,0),g+=v}(),!1===s&&(t>0&&x(!0),e>0&&x(!1)),this.setIndex(c),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}}exports.CylinderGeometry=exports.CylinderBufferGeometry=Eu;class Au extends Eu{constructor(t=1,e=1,n=8,r=1,i=!1,s=0,o=2*Math.PI){super(0,t,e,n,r,i,s,o),this.type="ConeGeometry",this.parameters={radius:t,height:e,radialSegments:n,heightSegments:r,openEnded:i,thetaStart:s,thetaLength:o}}}exports.ConeGeometry=exports.ConeBufferGeometry=Au;class Lu extends ki{constructor(t,e,n=1,r=0){super(),this.type="PolyhedronGeometry",this.parameters={vertices:t,indices:e,radius:n,detail:r};const i=[],s=[];function o(t,e,n,r){const i=r+1,s=[];for(let o=0;o<=i;o++){s[o]=[];const r=t.clone().lerp(n,o/i),a=e.clone().lerp(n,o/i),l=i-o;for(let t=0;t<=l;t++)s[o][t]=0===t&&o===i?r:r.clone().lerp(a,t/l)}for(let o=0;o<i;o++)for(let t=0;t<2*(i-o)-1;t++){const e=Math.floor(t/2);t%2==0?(a(s[o][e+1]),a(s[o+1][e]),a(s[o][e])):(a(s[o][e+1]),a(s[o+1][e+1]),a(s[o+1][e]))}}function a(t){i.push(t.x,t.y,t.z)}function l(e,n){const r=3*e;n.x=t[r+0],n.y=t[r+1],n.z=t[r+2]}function c(t,e,n,r){r<0&&1===t.x&&(s[e]=t.x-1),0===n.x&&0===n.z&&(s[e]=r/2/Math.PI+.5)}function h(t){return Math.atan2(t.z,-t.x)}!function(t){const n=new Yn,r=new Yn,i=new Yn;for(let s=0;s<e.length;s+=3)l(e[s+0],n),l(e[s+1],r),l(e[s+2],i),o(n,r,i,t)}(r),function(t){const e=new Yn;for(let n=0;n<i.length;n+=3)e.x=i[n+0],e.y=i[n+1],e.z=i[n+2],e.normalize().multiplyScalar(t),i[n+0]=e.x,i[n+1]=e.y,i[n+2]=e.z}(n),function(){const t=new Yn;for(let n=0;n<i.length;n+=3){t.x=i[n+0],t.y=i[n+1],t.z=i[n+2];const r=h(t)/2/Math.PI+.5,o=(e=t,Math.atan2(-e.y,Math.sqrt(e.x*e.x+e.z*e.z))/Math.PI+.5);s.push(r,1-o)}var e;(function(){const t=new Yn,e=new Yn,n=new Yn,r=new Yn,o=new On,a=new On,l=new On;for(let u=0,p=0;u<i.length;u+=9,p+=6){t.set(i[u+0],i[u+1],i[u+2]),e.set(i[u+3],i[u+4],i[u+5]),n.set(i[u+6],i[u+7],i[u+8]),o.set(s[p+0],s[p+1]),a.set(s[p+2],s[p+3]),l.set(s[p+4],s[p+5]),r.copy(t).add(e).add(n).divideScalar(3);const d=h(r);c(o,p+0,t,d),c(a,p+2,e,d),c(l,p+4,n,d)}})(),function(){for(let t=0;t<s.length;t+=6){const e=s[t+0],n=s[t+2],r=s[t+4],i=Math.max(e,n,r),o=Math.min(e,n,r);i>.9&&o<.1&&(e<.2&&(s[t+0]+=1),n<.2&&(s[t+2]+=1),r<.2&&(s[t+4]+=1))}}()}(),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(i.slice(),3)),this.setAttribute("uv",new Ci(s,2)),0===r?this.computeVertexNormals():this.normalizeNormals()}}exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=Lu;class Ru extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2,r=1/n;super([-1,-1,-1,-1,-1,1,-1,1,-1,-1,1,1,1,-1,-1,1,-1,1,1,1,-1,1,1,1,0,-r,-n,0,-r,n,0,r,-n,0,r,n,-r,-n,0,-r,n,0,r,-n,0,r,n,0,-n,0,-r,n,0,-r,-n,0,r,n,0,r],[3,11,7,3,7,15,3,15,13,7,19,17,7,17,6,7,6,15,17,4,8,17,8,10,17,10,6,8,0,16,8,16,2,8,2,10,0,12,1,0,1,18,0,18,16,6,10,2,6,2,13,6,13,15,2,16,18,2,18,3,2,3,13,18,1,9,18,9,11,18,11,3,4,14,12,4,12,0,4,0,8,11,9,5,11,5,19,11,19,7,19,5,14,19,14,4,19,4,17,1,12,14,1,14,5,1,5,9],t,e),this.type="DodecahedronGeometry",this.parameters={radius:t,detail:e}}}exports.DodecahedronGeometry=exports.DodecahedronBufferGeometry=Ru;const Cu=new Yn,Pu=new Yn,Du=new Yn,Iu=new li;class Bu extends ki{constructor(t,e){if(super(),this.type="EdgesGeometry",this.parameters={thresholdAngle:e},e=void 0!==e?e:1,!0===t.isGeometry)return void console.error("THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const n=Math.pow(10,4),r=Math.cos(Fn.DEG2RAD*e),i=t.getIndex(),s=t.getAttribute("position"),o=i?i.count:s.count,a=[0,0,0],l=["a","b","c"],c=new Array(3),h={},u=[];for(let p=0;p<o;p+=3){i?(a[0]=i.getX(p),a[1]=i.getX(p+1),a[2]=i.getX(p+2)):(a[0]=p,a[1]=p+1,a[2]=p+2);const{a:t,b:e,c:o}=Iu;if(t.fromBufferAttribute(s,a[0]),e.fromBufferAttribute(s,a[1]),o.fromBufferAttribute(s,a[2]),Iu.getNormal(Du),c[0]=`${Math.round(t.x*n)},${Math.round(t.y*n)},${Math.round(t.z*n)}`,c[1]=`${Math.round(e.x*n)},${Math.round(e.y*n)},${Math.round(e.z*n)}`,c[2]=`${Math.round(o.x*n)},${Math.round(o.y*n)},${Math.round(o.z*n)}`,c[0]!==c[1]&&c[1]!==c[2]&&c[2]!==c[0])for(let n=0;n<3;n++){const t=(n+1)%3,e=c[n],i=c[t],s=Iu[l[n]],o=Iu[l[t]],p=`${e}_${i}`,d=`${i}_${e}`;d in h&&h[d]?(Du.dot(h[d].normal)<=r&&(u.push(s.x,s.y,s.z),u.push(o.x,o.y,o.z)),h[d]=null):p in h||(h[p]={index0:a[n],index1:a[t],normal:Du.clone()})}}for(const p in h)if(h[p]){const{index0:t,index1:e}=h[p];Cu.fromBufferAttribute(s,t),Pu.fromBufferAttribute(s,e),u.push(Cu.x,Cu.y,Cu.z),u.push(Pu.x,Pu.y,Pu.z)}this.setAttribute("position",new Ci(u,3))}}exports.EdgesGeometry=Bu;const Nu={triangulate:function(t,e,n){n=n||2;const r=e&&e.length,i=r?e[0]*n:t.length;let s=Fu(t,0,i,n,!0);const o=[];if(!s||s.next===s.prev)return o;let a,l,c,h,u,p,d;if(r&&(s=Vu(t,e,s,n)),t.length>80*n){a=c=t[0],l=h=t[1];for(let e=n;e<i;e+=n)(u=t[e])<a&&(a=u),(p=t[e+1])<l&&(l=p),u>c&&(c=u),p>h&&(h=p);d=0!==(d=Math.max(c-a,h-l))?1/d:0}return zu(s,o,n,a,l,d),o}};function Fu(t,e,n,r,i){let s,o;if(i===pp(t,e,n,r)>0)for(s=e;s<n;s+=r)o=cp(s,t[s],t[s+1],o);else for(s=n-r;s>=e;s-=r)o=cp(s,t[s],t[s+1],o);return o&&ep(o,o.next)&&(hp(o),o=o.next),o}function Ou(t,e){if(!t)return t;e||(e=t);let n,r=t;do{if(n=!1,r.steiner||!ep(r,r.next)&&0!==tp(r.prev,r,r.next))r=r.next;else{if(hp(r),(r=e=r.prev)===r.next)break;n=!0}}while(n||r!==e);return e}function zu(t,e,n,r,i,s,o){if(!t)return;!o&&s&&Yu(t,r,i,s);let a,l,c=t;for(;t.prev!==t.next;)if(a=t.prev,l=t.next,s?Hu(t,r,i,s):Gu(t))e.push(a.i/n),e.push(t.i/n),e.push(l.i/n),hp(t),t=l.next,c=l.next;else if((t=l)===c){o?1===o?zu(t=Uu(Ou(t),e,n),e,n,r,i,s,2):2===o&&ku(t,e,n,r,i,s):zu(Ou(t),e,n,r,i,s,1);break}}function Gu(t){const e=t.prev,n=t,r=t.next;if(tp(e,n,r)>=0)return!1;let i=t.next.next;for(;i!==t.prev;){if(Ku(e.x,e.y,n.x,n.y,r.x,r.y,i.x,i.y)&&tp(i.prev,i,i.next)>=0)return!1;i=i.next}return!0}function Hu(t,e,n,r){const i=t.prev,s=t,o=t.next;if(tp(i,s,o)>=0)return!1;const a=i.x<s.x?i.x<o.x?i.x:o.x:s.x<o.x?s.x:o.x,l=i.y<s.y?i.y<o.y?i.y:o.y:s.y<o.y?s.y:o.y,c=i.x>s.x?i.x>o.x?i.x:o.x:s.x>o.x?s.x:o.x,h=i.y>s.y?i.y>o.y?i.y:o.y:s.y>o.y?s.y:o.y,u=Ju(a,l,e,n,r),p=Ju(c,h,e,n,r);let d=t.prevZ,m=t.nextZ;for(;d&&d.z>=u&&m&&m.z<=p;){if(d!==t.prev&&d!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,d.x,d.y)&&tp(d.prev,d,d.next)>=0)return!1;if(d=d.prevZ,m!==t.prev&&m!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,m.x,m.y)&&tp(m.prev,m,m.next)>=0)return!1;m=m.nextZ}for(;d&&d.z>=u;){if(d!==t.prev&&d!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,d.x,d.y)&&tp(d.prev,d,d.next)>=0)return!1;d=d.prevZ}for(;m&&m.z<=p;){if(m!==t.prev&&m!==t.next&&Ku(i.x,i.y,s.x,s.y,o.x,o.y,m.x,m.y)&&tp(m.prev,m,m.next)>=0)return!1;m=m.nextZ}return!0}function Uu(t,e,n){let r=t;do{const i=r.prev,s=r.next.next;!ep(i,s)&&np(i,r,r.next,s)&&op(i,s)&&op(s,i)&&(e.push(i.i/n),e.push(r.i/n),e.push(s.i/n),hp(r),hp(r.next),r=t=s),r=r.next}while(r!==t);return Ou(r)}function ku(t,e,n,r,i,s){let o=t;do{let t=o.next.next;for(;t!==o.prev;){if(o.i!==t.i&&$u(o,t)){let a=lp(o,t);return o=Ou(o,o.next),a=Ou(a,a.next),zu(o,e,n,r,i,s),void zu(a,e,n,r,i,s)}t=t.next}o=o.next}while(o!==t)}function Vu(t,e,n,r){const i=[];let 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i=t;do{null===i.z&&(i.z=Ju(i.x,i.y,e,n,r)),i.prevZ=i.prev,i.nextZ=i.next,i=i.next}while(i!==t);i.prevZ.nextZ=null,i.prevZ=null,Zu(i)}function Zu(t){let e,n,r,i,s,o,a,l,c=1;do{for(n=t,t=null,s=null,o=0;n;){for(o++,r=n,a=0,e=0;e<c&&(a++,r=r.nextZ);e++);for(l=c;a>0||l>0&&r;)0!==a&&(0===l||!r||n.z<=r.z)?(i=n,n=n.nextZ,a--):(i=r,r=r.nextZ,l--),s?s.nextZ=i:t=i,i.prevZ=s,s=i;n=r}s.nextZ=null,c*=2}while(o>1);return t}function Ju(t,e,n,r,i){return(t=1431655765&((t=858993459&((t=252645135&((t=16711935&((t=32767*(t-n)*i)|t<<8))|t<<4))|t<<2))|t<<1))|(e=1431655765&((e=858993459&((e=252645135&((e=16711935&((e=32767*(e-r)*i)|e<<8))|e<<4))|e<<2))|e<<1))<<1}function Qu(t){let e=t,n=t;do{(e.x<n.x||e.x===n.x&&e.y<n.y)&&(n=e),e=e.next}while(e!==t);return n}function Ku(t,e,n,r,i,s,o,a){return(i-o)*(e-a)-(t-o)*(s-a)>=0&&(t-o)*(r-a)-(n-o)*(e-a)>=0&&(n-o)*(s-a)-(i-o)*(r-a)>=0}function $u(t,e){return t.next.i!==e.i&&t.prev.i!==e.i&&!sp(t,e)&&(op(t,e)&&op(e,t)&&ap(t,e)&&(tp(t.prev,t,e.prev)||tp(t,e.prev,e))||ep(t,e)&&tp(t.prev,t,t.next)>0&&tp(e.prev,e,e.next)>0)}function tp(t,e,n){return(e.y-t.y)*(n.x-e.x)-(e.x-t.x)*(n.y-e.y)}function ep(t,e){return t.x===e.x&&t.y===e.y}function np(t,e,n,r){const i=ip(tp(t,e,n)),s=ip(tp(t,e,r)),o=ip(tp(n,r,t)),a=ip(tp(n,r,e));return i!==s&&o!==a||(!(0!==i||!rp(t,n,e))||(!(0!==s||!rp(t,r,e))||(!(0!==o||!rp(n,t,r))||!(0!==a||!rp(n,e,r)))))}function rp(t,e,n){return e.x<=Math.max(t.x,n.x)&&e.x>=Math.min(t.x,n.x)&&e.y<=Math.max(t.y,n.y)&&e.y>=Math.min(t.y,n.y)}function ip(t){return t>0?1:t<0?-1:0}function sp(t,e){let n=t;do{if(n.i!==t.i&&n.next.i!==t.i&&n.i!==e.i&&n.next.i!==e.i&&np(n,n.next,t,e))return!0;n=n.next}while(n!==t);return!1}function op(t,e){return tp(t.prev,t,t.next)<0?tp(t,e,t.next)>=0&&tp(t,t.prev,e)>=0:tp(t,e,t.prev)<0||tp(t,t.next,e)<0}function ap(t,e){let n=t,r=!1;const i=(t.x+e.x)/2,s=(t.y+e.y)/2;do{n.y>s!=n.next.y>s&&n.next.y!==n.y&&i<(n.next.x-n.x)*(s-n.y)/(n.next.y-n.y)+n.x&&(r=!r),n=n.next}while(n!==t);return r}function lp(t,e){const n=new up(t.i,t.x,t.y),r=new up(e.i,e.x,e.y),i=t.next,s=e.prev;return t.next=e,e.prev=t,n.next=i,i.prev=n,r.next=n,n.prev=r,s.next=r,r.prev=s,r}function cp(t,e,n,r){const i=new up(t,e,n);return r?(i.next=r.next,i.prev=r,r.next.prev=i,r.next=i):(i.prev=i,i.next=i),i}function hp(t){t.next.prev=t.prev,t.prev.next=t.next,t.prevZ&&(t.prevZ.nextZ=t.nextZ),t.nextZ&&(t.nextZ.prevZ=t.prevZ)}function up(t,e,n){this.i=t,this.x=e,this.y=n,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1}function pp(t,e,n,r){let i=0;for(let s=e,o=n-r;s<n;s+=r)i+=(t[o]-t[s])*(t[s+1]+t[o+1]),o=s;return i}const dp={area:function(t){const e=t.length;let n=0;for(let r=e-1,i=0;i<e;r=i++)n+=t[r].x*t[i].y-t[i].x*t[r].y;return.5*n},isClockWise:function(t){return dp.area(t)<0},triangulateShape:function(t,e){const n=[],r=[],i=[];mp(t),fp(n,t);let s=t.length;e.forEach(mp);for(let a=0;a<e.length;a++)r.push(s),s+=e[a].length,fp(n,e[a]);const o=Nu.triangulate(n,r);for(let a=0;a<o.length;a+=3)i.push(o.slice(a,a+3));return i}};function mp(t){const e=t.length;e>2&&t[e-1].equals(t[0])&&t.pop()}function fp(t,e){for(let n=0;n<e.length;n++)t.push(e[n].x),t.push(e[n].y)}exports.ShapeUtils=dp;class gp extends ki{constructor(t,e){super(),this.type="ExtrudeGeometry",this.parameters={shapes:t,options:e},t=Array.isArray(t)?t:[t];const n=this,r=[],i=[];for(let o=0,a=t.length;o<a;o++){s(t[o])}function s(t){const s=[],o=void 0!==e.curveSegments?e.curveSegments:12,a=void 0!==e.steps?e.steps:1;let l=void 0!==e.depth?e.depth:100,c=void 0===e.bevelEnabled||e.bevelEnabled,h=void 0!==e.bevelThickness?e.bevelThickness:6,u=void 0!==e.bevelSize?e.bevelSize:h-2,p=void 0!==e.bevelOffset?e.bevelOffset:0,d=void 0!==e.bevelSegments?e.bevelSegments:3;const m=e.extrudePath,f=void 0!==e.UVGenerator?e.UVGenerator:xp;void 0!==e.amount&&(console.warn("THREE.ExtrudeBufferGeometry: amount has been renamed to depth."),l=e.amount);let g,x,v,y,_,b=!1;m&&(g=m.getSpacedPoints(a),b=!0,c=!1,x=m.computeFrenetFrames(a,!1),v=new Yn,y=new Yn,_=new Yn),c||(d=0,h=0,u=0,p=0);const w=t.extractPoints(o);let M=w.shape;const S=w.holes;if(!dp.isClockWise(M)){M=M.reverse();for(let t=0,e=S.length;t<e;t++){const e=S[t];dp.isClockWise(e)&&(S[t]=e.reverse())}}const T=dp.triangulateShape(M,S),E=M;for(let e=0,n=S.length;e<n;e++){const t=S[e];M=M.concat(t)}function A(t,e,n){return e||console.error("THREE.ExtrudeGeometry: vec does not exist"),e.clone().multiplyScalar(n).add(t)}const L=M.length,R=T.length;function C(t,e,n){let r,i,s;const o=t.x-e.x,a=t.y-e.y,l=n.x-t.x,c=n.y-t.y,h=o*o+a*a,u=o*c-a*l;if(Math.abs(u)>Number.EPSILON){const u=Math.sqrt(h),p=Math.sqrt(l*l+c*c),d=e.x-a/u,m=e.y+o/u,f=((n.x-c/p-d)*c-(n.y+l/p-m)*l)/(o*c-a*l),g=(r=d+o*f-t.x)*r+(i=m+a*f-t.y)*i;if(g<=2)return new On(r,i);s=Math.sqrt(g/2)}else{let t=!1;o>Number.EPSILON?l>Number.EPSILON&&(t=!0):o<-Number.EPSILON?l<-Number.EPSILON&&(t=!0):Math.sign(a)===Math.sign(c)&&(t=!0),t?(r=-a,i=o,s=Math.sqrt(h)):(r=o,i=a,s=Math.sqrt(h/2))}return new On(r/s,i/s)}const P=[];for(let e=0,n=E.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),P[e]=C(E[e],E[r],E[i]);const D=[];let I,B=P.concat();for(let e=0,n=S.length;e<n;e++){const t=S[e];I=[];for(let e=0,n=t.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),I[e]=C(t[e],t[r],t[i]);D.push(I),B=B.concat(I)}for(let e=0;e<d;e++){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,-n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);O(i.x,i.y,-n)}}}const N=u+p;for(let e=0;e<L;e++){const t=c?A(M[e],B[e],N):M[e];b?(y.copy(x.normals[0]).multiplyScalar(t.x),v.copy(x.binormals[0]).multiplyScalar(t.y),_.copy(g[0]).add(y).add(v),O(_.x,_.y,_.z)):O(t.x,t.y,0)}for(let e=1;e<=a;e++)for(let t=0;t<L;t++){const n=c?A(M[t],B[t],N):M[t];b?(y.copy(x.normals[e]).multiplyScalar(n.x),v.copy(x.binormals[e]).multiplyScalar(n.y),_.copy(g[e]).add(y).add(v),O(_.x,_.y,_.z)):O(n.x,n.y,l/a*e)}for(let e=d-1;e>=0;e--){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,l+n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);b?O(i.x,i.y+g[a-1].y,g[a-1].x+n):O(i.x,i.y,l+n)}}}function F(t,e){let n=t.length;for(;--n>=0;){const r=n;let i=n-1;i<0&&(i=t.length-1);for(let t=0,n=a+2*d;t<n;t++){const n=L*t,s=L*(t+1);G(e+r+n,e+i+n,e+i+s,e+r+s)}}}function O(t,e,n){s.push(t),s.push(e),s.push(n)}function z(t,e,i){H(t),H(e),H(i);const s=r.length/3,o=f.generateTopUV(n,r,s-3,s-2,s-1);U(o[0]),U(o[1]),U(o[2])}function G(t,e,i,s){H(t),H(e),H(s),H(e),H(i),H(s);const o=r.length/3,a=f.generateSideWallUV(n,r,o-6,o-3,o-2,o-1);U(a[0]),U(a[1]),U(a[3]),U(a[1]),U(a[2]),U(a[3])}function H(t){r.push(s[3*t+0]),r.push(s[3*t+1]),r.push(s[3*t+2])}function U(t){i.push(t.x),i.push(t.y)}!function(){const t=r.length/3;if(c){let t=0,e=L*t;for(let n=0;n<R;n++){const t=T[n];z(t[2]+e,t[1]+e,t[0]+e)}e=L*(t=a+2*d);for(let n=0;n<R;n++){const t=T[n];z(t[0]+e,t[1]+e,t[2]+e)}}else{for(let t=0;t<R;t++){const e=T[t];z(e[2],e[1],e[0])}for(let t=0;t<R;t++){const e=T[t];z(e[0]+L*a,e[1]+L*a,e[2]+L*a)}}n.addGroup(t,r.length/3-t,0)}(),function(){const t=r.length/3;let e=0;F(E,e),e+=E.length;for(let n=0,r=S.length;n<r;n++){const t=S[n];F(t,e),e+=t.length}n.addGroup(t,r.length/3-t,1)}()}this.setAttribute("position",new Ci(r,3)),this.setAttribute("uv",new Ci(i,2)),this.computeVertexNormals()}toJSON(){const t=ki.prototype.toJSON.call(this);return vp(this.parameters.shapes,this.parameters.options,t)}}exports.ExtrudeGeometry=exports.ExtrudeBufferGeometry=gp;const xp={generateTopUV:function(t,e,n,r,i){const s=e[3*n],o=e[3*n+1],a=e[3*r],l=e[3*r+1],c=e[3*i],h=e[3*i+1];return[new On(s,o),new On(a,l),new On(c,h)]},generateSideWallUV:function(t,e,n,r,i,s){const o=e[3*n],a=e[3*n+1],l=e[3*n+2],c=e[3*r],h=e[3*r+1],u=e[3*r+2],p=e[3*i],d=e[3*i+1],m=e[3*i+2],f=e[3*s],g=e[3*s+1],x=e[3*s+2];return Math.abs(a-h)<.01?[new On(o,1-l),new On(c,1-u),new On(p,1-m),new On(f,1-x)]:[new On(a,1-l),new On(h,1-u),new On(d,1-m),new On(g,1-x)]}};function vp(t,e,n){if(n.shapes=[],Array.isArray(t))for(let r=0,i=t.length;r<i;r++){const e=t[r];n.shapes.push(e.uuid)}else n.shapes.push(t.uuid);return void 0!==e.extrudePath&&(n.options.extrudePath=e.extrudePath.toJSON()),n}class yp extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2;super([-1,n,0,1,n,0,-1,-n,0,1,-n,0,0,-1,n,0,1,n,0,-1,-n,0,1,-n,n,0,-1,n,0,1,-n,0,-1,-n,0,1],[0,11,5,0,5,1,0,1,7,0,7,10,0,10,11,1,5,9,5,11,4,11,10,2,10,7,6,7,1,8,3,9,4,3,4,2,3,2,6,3,6,8,3,8,9,4,9,5,2,4,11,6,2,10,8,6,7,9,8,1],t,e),this.type="IcosahedronGeometry",this.parameters={radius:t,detail:e}}}exports.IcosahedronGeometry=exports.IcosahedronBufferGeometry=yp;class _p extends ki{constructor(t,e=12,n=0,r=2*Math.PI){super(),this.type="LatheGeometry",this.parameters={points:t,segments:e,phiStart:n,phiLength:r},e=Math.floor(e),r=Fn.clamp(r,0,2*Math.PI);const i=[],s=[],o=[],a=1/e,l=new Yn,c=new On;for(let h=0;h<=e;h++){const i=n+h*a*r,u=Math.sin(i),p=Math.cos(i);for(let n=0;n<=t.length-1;n++)l.x=t[n].x*u,l.y=t[n].y,l.z=t[n].x*p,s.push(l.x,l.y,l.z),c.x=h/e,c.y=n/(t.length-1),o.push(c.x,c.y)}for(let h=0;h<e;h++)for(let e=0;e<t.length-1;e++){const n=e+h*t.length,r=n,s=n+t.length,o=n+t.length+1,a=n+1;i.push(r,s,a),i.push(s,o,a)}if(this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2)),this.computeVertexNormals(),r===2*Math.PI){const n=this.attributes.normal.array,r=new Yn,i=new Yn,s=new Yn,o=e*t.length*3;for(let e=0,a=0;e<t.length;e++,a+=3)r.x=n[a+0],r.y=n[a+1],r.z=n[a+2],i.x=n[o+a+0],i.y=n[o+a+1],i.z=n[o+a+2],s.addVectors(r,i).normalize(),n[a+0]=n[o+a+0]=s.x,n[a+1]=n[o+a+1]=s.y,n[a+2]=n[o+a+2]=s.z}}}exports.LatheGeometry=exports.LatheBufferGeometry=_p;class bp extends Lu{constructor(t=1,e=0){super([1,0,0,-1,0,0,0,1,0,0,-1,0,0,0,1,0,0,-1],[0,2,4,0,4,3,0,3,5,0,5,2,1,2,5,1,5,3,1,3,4,1,4,2],t,e),this.type="OctahedronGeometry",this.parameters={radius:t,detail:e}}}function wp(t,e,n){ki.call(this),this.type="ParametricGeometry",this.parameters={func:t,slices:e,stacks:n};const r=[],i=[],s=[],o=[],a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=new Yn;t.length<3&&console.error("THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.");const p=e+1;for(let d=0;d<=n;d++){const r=d/n;for(let n=0;n<=e;n++){const p=n/e;t(p,r,l),i.push(l.x,l.y,l.z),p-1e-5>=0?(t(p-1e-5,r,c),h.subVectors(l,c)):(t(p+1e-5,r,c),h.subVectors(c,l)),r-1e-5>=0?(t(p,r-1e-5,c),u.subVectors(l,c)):(t(p,r+1e-5,c),u.subVectors(c,l)),a.crossVectors(h,u).normalize(),s.push(a.x,a.y,a.z),o.push(p,r)}}for(let d=0;d<n;d++)for(let t=0;t<e;t++){const e=d*p+t,n=d*p+t+1,i=(d+1)*p+t+1,s=(d+1)*p+t;r.push(e,n,s),r.push(n,i,s)}this.setIndex(r),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2))}exports.OctahedronGeometry=exports.OctahedronBufferGeometry=bp,wp.prototype=Object.create(ki.prototype),wp.prototype.constructor=wp;class Mp extends ki{constructor(t=.5,e=1,n=8,r=1,i=0,s=2*Math.PI){super(),this.type="RingGeometry",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:n,phiSegments:r,thetaStart:i,thetaLength:s},n=Math.max(3,n);const o=[],a=[],l=[],c=[];let h=t;const u=(e-t)/(r=Math.max(1,r)),p=new Yn,d=new On;for(let m=0;m<=r;m++){for(let t=0;t<=n;t++){const r=i+t/n*s;p.x=h*Math.cos(r),p.y=h*Math.sin(r),a.push(p.x,p.y,p.z),l.push(0,0,1),d.x=(p.x/e+1)/2,d.y=(p.y/e+1)/2,c.push(d.x,d.y)}h+=u}for(let m=0;m<r;m++){const t=m*(n+1);for(let e=0;e<n;e++){const r=e+t,i=r,s=r+n+1,a=r+n+2,l=r+1;o.push(i,s,l),o.push(s,a,l)}}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.RingGeometry=exports.RingBufferGeometry=Mp;class Sp extends ki{constructor(t,e=12){super(),this.type="ShapeGeometry",this.parameters={shapes:t,curveSegments:e};const n=[],r=[],i=[],s=[];let o=0,a=0;if(!1===Array.isArray(t))l(t);else for(let c=0;c<t.length;c++)l(t[c]),this.addGroup(o,a,c),o+=a,a=0;function l(t){const o=r.length/3,l=t.extractPoints(e);let c=l.shape;const h=l.holes;!1===dp.isClockWise(c)&&(c=c.reverse());for(let e=0,n=h.length;e<n;e++){const t=h[e];!0===dp.isClockWise(t)&&(h[e]=t.reverse())}const u=dp.triangulateShape(c,h);for(let e=0,n=h.length;e<n;e++){const t=h[e];c=c.concat(t)}for(let e=0,n=c.length;e<n;e++){const t=c[e];r.push(t.x,t.y,0),i.push(0,0,1),s.push(t.x,t.y)}for(let e=0,r=u.length;e<r;e++){const t=u[e],r=t[0]+o,i=t[1]+o,s=t[2]+o;n.push(r,i,s),a+=3}}this.setIndex(n),this.setAttribute("position",new Ci(r,3)),this.setAttribute("normal",new Ci(i,3)),this.setAttribute("uv",new Ci(s,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return Tp(this.parameters.shapes,t)}}function Tp(t,e){if(e.shapes=[],Array.isArray(t))for(let n=0,r=t.length;n<r;n++){const r=t[n];e.shapes.push(r.uuid)}else e.shapes.push(t.uuid);return e}exports.ShapeGeometry=exports.ShapeBufferGeometry=Sp;class Ep extends ki{constructor(t=1,e=8,n=6,r=0,i=2*Math.PI,s=0,o=Math.PI){super(),this.type="SphereGeometry",this.parameters={radius:t,widthSegments:e,heightSegments:n,phiStart:r,phiLength:i,thetaStart:s,thetaLength:o},e=Math.max(3,Math.floor(e)),n=Math.max(2,Math.floor(n));const a=Math.min(s+o,Math.PI);let l=0;const c=[],h=new Yn,u=new Yn,p=[],d=[],m=[],f=[];for(let g=0;g<=n;g++){const p=[],x=g/n;let v=0;0==g&&0==s?v=.5/e:g==n&&a==Math.PI&&(v=-.5/e);for(let n=0;n<=e;n++){const a=n/e;h.x=-t*Math.cos(r+a*i)*Math.sin(s+x*o),h.y=t*Math.cos(s+x*o),h.z=t*Math.sin(r+a*i)*Math.sin(s+x*o),d.push(h.x,h.y,h.z),u.copy(h).normalize(),m.push(u.x,u.y,u.z),f.push(a+v,1-x),p.push(l++)}c.push(p)}for(let g=0;g<n;g++)for(let t=0;t<e;t++){const e=c[g][t+1],r=c[g][t],i=c[g+1][t],o=c[g+1][t+1];(0!==g||s>0)&&p.push(e,r,o),(g!==n-1||a<Math.PI)&&p.push(r,i,o)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.SphereGeometry=exports.SphereBufferGeometry=Ep;class Ap extends Lu{constructor(t=1,e=0){super([1,1,1,-1,-1,1,-1,1,-1,1,-1,-1],[2,1,0,0,3,2,1,3,0,2,3,1],t,e),this.type="TetrahedronGeometry",this.parameters={radius:t,detail:e}}}exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=Ap;class Lp extends gp{constructor(t,e={}){const n=e.font;if(!n||!n.isFont)return console.error("THREE.TextGeometry: font parameter is not an instance of THREE.Font."),new ki;const r=n.generateShapes(t,e.size);e.depth=void 0!==e.height?e.height:50,void 0===e.bevelThickness&&(e.bevelThickness=10),void 0===e.bevelSize&&(e.bevelSize=8),void 0===e.bevelEnabled&&(e.bevelEnabled=!1),super(r,e),this.type="TextGeometry"}}exports.TextGeometry=exports.TextBufferGeometry=Lp;class Rp extends ki{constructor(t=1,e=.4,n=8,r=6,i=2*Math.PI){super(),this.type="TorusGeometry",this.parameters={radius:t,tube:e,radialSegments:n,tubularSegments:r,arc:i},n=Math.floor(n),r=Math.floor(r);const s=[],o=[],a=[],l=[],c=new Yn,h=new Yn,u=new Yn;for(let p=0;p<=n;p++)for(let s=0;s<=r;s++){const d=s/r*i,m=p/n*Math.PI*2;h.x=(t+e*Math.cos(m))*Math.cos(d),h.y=(t+e*Math.cos(m))*Math.sin(d),h.z=e*Math.sin(m),o.push(h.x,h.y,h.z),c.x=t*Math.cos(d),c.y=t*Math.sin(d),u.subVectors(h,c).normalize(),a.push(u.x,u.y,u.z),l.push(s/r),l.push(p/n)}for(let p=1;p<=n;p++)for(let t=1;t<=r;t++){const e=(r+1)*p+t-1,n=(r+1)*(p-1)+t-1,i=(r+1)*(p-1)+t,o=(r+1)*p+t;s.push(e,n,o),s.push(n,i,o)}this.setIndex(s),this.setAttribute("position",new Ci(o,3)),this.setAttribute("normal",new Ci(a,3)),this.setAttribute("uv",new Ci(l,2))}}exports.TorusGeometry=exports.TorusBufferGeometry=Rp;class Cp extends ki{constructor(t=1,e=.4,n=64,r=8,i=2,s=3){super(),this.type="TorusKnotGeometry",this.parameters={radius:t,tube:e,tubularSegments:n,radialSegments:r,p:i,q:s},n=Math.floor(n),r=Math.floor(r);const o=[],a=[],l=[],c=[],h=new Yn,u=new Yn,p=new Yn,d=new Yn,m=new Yn,f=new Yn,g=new Yn;for(let v=0;v<=n;++v){const o=v/n*i*Math.PI*2;x(o,i,s,t,p),x(o+.01,i,s,t,d),f.subVectors(d,p),g.addVectors(d,p),m.crossVectors(f,g),g.crossVectors(m,f),m.normalize(),g.normalize();for(let t=0;t<=r;++t){const i=t/r*Math.PI*2,s=-e*Math.cos(i),o=e*Math.sin(i);h.x=p.x+(s*g.x+o*m.x),h.y=p.y+(s*g.y+o*m.y),h.z=p.z+(s*g.z+o*m.z),a.push(h.x,h.y,h.z),u.subVectors(h,p).normalize(),l.push(u.x,u.y,u.z),c.push(v/n),c.push(t/r)}}for(let v=1;v<=n;v++)for(let t=1;t<=r;t++){const e=(r+1)*(v-1)+(t-1),n=(r+1)*v+(t-1),i=(r+1)*v+t,s=(r+1)*(v-1)+t;o.push(e,n,s),o.push(n,i,s)}function x(t,e,n,r,i){const s=Math.cos(t),o=Math.sin(t),a=n/e*t,l=Math.cos(a);i.x=r*(2+l)*.5*s,i.y=r*(2+l)*o*.5,i.z=r*Math.sin(a)*.5}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=Cp;class Pp extends ki{constructor(t,e=64,n=1,r=8,i=!1){super(),this.type="TubeGeometry",this.parameters={path:t,tubularSegments:e,radius:n,radialSegments:r,closed:i};const s=t.computeFrenetFrames(e,i);this.tangents=s.tangents,this.normals=s.normals,this.binormals=s.binormals;const o=new Yn,a=new Yn,l=new On;let c=new Yn;const h=[],u=[],p=[],d=[];function m(i){c=t.getPointAt(i/e,c);const l=s.normals[i],p=s.binormals[i];for(let t=0;t<=r;t++){const e=t/r*Math.PI*2,i=Math.sin(e),s=-Math.cos(e);a.x=s*l.x+i*p.x,a.y=s*l.y+i*p.y,a.z=s*l.z+i*p.z,a.normalize(),u.push(a.x,a.y,a.z),o.x=c.x+n*a.x,o.y=c.y+n*a.y,o.z=c.z+n*a.z,h.push(o.x,o.y,o.z)}}!function(){for(let t=0;t<e;t++)m(t);m(!1===i?e:0),function(){for(let t=0;t<=e;t++)for(let n=0;n<=r;n++)l.x=t/e,l.y=n/r,p.push(l.x,l.y)}(),function(){for(let t=1;t<=e;t++)for(let e=1;e<=r;e++){const n=(r+1)*(t-1)+(e-1),i=(r+1)*t+(e-1),s=(r+1)*t+e,o=(r+1)*(t-1)+e;d.push(n,i,o),d.push(i,s,o)}}()}(),this.setIndex(d),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return t.path=this.parameters.path.toJSON(),t}}exports.TubeGeometry=exports.TubeBufferGeometry=Pp;class Dp extends ki{constructor(t){if(super(),this.type="WireframeGeometry",!0===t.isGeometry)return void console.error("THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const e=[],n=[0,0],r={},i=new Yn;if(null!==t.index){const s=t.attributes.position,o=t.index;let a=t.groups;0===a.length&&(a=[{start:0,count:o.count,materialIndex:0}]);for(let t=0,e=a.length;t<e;++t){const e=a[t],i=e.start;for(let t=i,s=i+e.count;t<s;t+=3)for(let e=0;e<3;e++){const i=o.getX(t+e),s=o.getX(t+(e+1)%3);n[0]=Math.min(i,s),n[1]=Math.max(i,s);const a=n[0]+","+n[1];void 0===r[a]&&(r[a]={index1:n[0],index2:n[1]})}}for(const t in r){const n=r[t];i.fromBufferAttribute(s,n.index1),e.push(i.x,i.y,i.z),i.fromBufferAttribute(s,n.index2),e.push(i.x,i.y,i.z)}}else{const n=t.attributes.position;for(let t=0,r=n.count/3;t<r;t++)for(let s=0;s<3;s++){const r=3*t+s;i.fromBufferAttribute(n,r),e.push(i.x,i.y,i.z);const o=3*t+(s+1)%3;i.fromBufferAttribute(n,o),e.push(i.x,i.y,i.z)}}this.setAttribute("position",new Ci(e,3))}}exports.WireframeGeometry=Dp;var Ip=Object.freeze({__proto__:null,BoxGeometry:cs,BoxBufferGeometry:cs,CircleGeometry:Tu,CircleBufferGeometry:Tu,ConeGeometry:Au,ConeBufferGeometry:Au,CylinderGeometry:Eu,CylinderBufferGeometry:Eu,DodecahedronGeometry:Ru,DodecahedronBufferGeometry:Ru,EdgesGeometry:Bu,ExtrudeGeometry:gp,ExtrudeBufferGeometry:gp,IcosahedronGeometry:yp,IcosahedronBufferGeometry:yp,LatheGeometry:_p,LatheBufferGeometry:_p,OctahedronGeometry:bp,OctahedronBufferGeometry:bp,ParametricGeometry:wp,ParametricBufferGeometry:wp,PlaneGeometry:Rs,PlaneBufferGeometry:Rs,PolyhedronGeometry:Lu,PolyhedronBufferGeometry:Lu,RingGeometry:Mp,RingBufferGeometry:Mp,ShapeGeometry:Sp,ShapeBufferGeometry:Sp,SphereGeometry:Ep,SphereBufferGeometry:Ep,TetrahedronGeometry:Ap,TetrahedronBufferGeometry:Ap,TextGeometry:Lp,TextBufferGeometry:Lp,TorusGeometry:Rp,TorusBufferGeometry:Rp,TorusKnotGeometry:Cp,TorusKnotBufferGeometry:Cp,TubeGeometry:Pp,TubeBufferGeometry:Pp,WireframeGeometry:Dp});class Bp extends hi{constructor(t){super(),this.type="ShadowMaterial",this.color=new xi(0),this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this}}exports.ShadowMaterial=Bp,Bp.prototype.isShadowMaterial=!0;class Np extends fs{constructor(t){super(t),this.type="RawShaderMaterial"}}function Fp(t){hi.call(this),this.defines={STANDARD:""},this.type="MeshStandardMaterial",this.color=new xi(16777215),this.roughness=1,this.metalness=0,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapIntensity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.vertexTangents=!1,this.setValues(t)}function Op(t){Fp.call(this),this.defines={STANDARD:"",PHYSICAL:""},this.type="MeshPhysicalMaterial",this.clearcoat=0,this.clearcoatMap=null,this.clearcoatRoughness=0,this.clearcoatRoughnessMap=null,this.clearcoatNormalScale=new On(1,1),this.clearcoatNormalMap=null,this.reflectivity=.5,Object.defineProperty(this,"ior",{get:function(){return(1+.4*this.reflectivity)/(1-.4*this.reflectivity)},set:function(t){this.reflectivity=Fn.clamp(2.5*(t-1)/(t+1),0,1)}}),this.sheen=null,this.transmission=0,this.transmissionMap=null,this.setValues(t)}exports.RawShaderMaterial=Np,Np.prototype.isRawShaderMaterial=!0,Fp.prototype=Object.create(hi.prototype),Fp.prototype.constructor=Fp,Fp.prototype.isMeshStandardMaterial=!0,Fp.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.defines={STANDARD:""},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapIntensity=t.envMapIntensity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this.vertexTangents=t.vertexTangents,this},Op.prototype=Object.create(Fp.prototype),Op.prototype.constructor=Op,Op.prototype.isMeshPhysicalMaterial=!0,Op.prototype.copy=function(t){return Fp.prototype.copy.call(this,t),this.defines={STANDARD:"",PHYSICAL:""},this.clearcoat=t.clearcoat,this.clearcoatMap=t.clearcoatMap,this.clearcoatRoughness=t.clearcoatRoughness,this.clearcoatRoughnessMap=t.clearcoatRoughnessMap,this.clearcoatNormalMap=t.clearcoatNormalMap,this.clearcoatNormalScale.copy(t.clearcoatNormalScale),this.reflectivity=t.reflectivity,t.sheen?this.sheen=(this.sheen||new xi).copy(t.sheen):this.sheen=null,this.transmission=t.transmission,this.transmissionMap=t.transmissionMap,this};class zp extends hi{constructor(t){super(),this.type="MeshPhongMaterial",this.color=new xi(16777215),this.specular=new xi(1118481),this.shininess=30,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.specular.copy(t.specular),this.shininess=t.shininess,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshPhongMaterial=zp,zp.prototype.isMeshPhongMaterial=!0;class Gp extends hi{constructor(t){super(),this.defines={TOON:""},this.type="MeshToonMaterial",this.color=new xi(16777215),this.map=null,this.gradientMap=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.gradientMap=t.gradientMap,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshToonMaterial=Gp,Gp.prototype.isMeshToonMaterial=!0;class Hp extends hi{constructor(t){super(),this.type="MeshNormalMaterial",this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshNormalMaterial=Hp,Hp.prototype.isMeshNormalMaterial=!0;class Up extends hi{constructor(t){super(),this.type="MeshLambertMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshLambertMaterial=Up,Up.prototype.isMeshLambertMaterial=!0;class kp extends hi{constructor(t){super(),this.defines={MATCAP:""},this.type="MeshMatcapMaterial",this.color=new xi(16777215),this.matcap=null,this.map=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.defines={MATCAP:""},this.color.copy(t.color),this.matcap=t.matcap,this.map=t.map,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshMatcapMaterial=kp,kp.prototype.isMeshMatcapMaterial=!0;class Vp extends ru{constructor(t){super(),this.type="LineDashedMaterial",this.scale=1,this.dashSize=3,this.gapSize=1,this.setValues(t)}copy(t){return super.copy(t),this.scale=t.scale,this.dashSize=t.dashSize,this.gapSize=t.gapSize,this}}exports.LineDashedMaterial=Vp,Vp.prototype.isLineDashedMaterial=!0;var Wp=Object.freeze({__proto__:null,ShadowMaterial:Bp,SpriteMaterial:Mh,RawShaderMaterial:Np,ShaderMaterial:fs,PointsMaterial:mu,MeshPhysicalMaterial:Op,MeshStandardMaterial:Fp,MeshPhongMaterial:zp,MeshToonMaterial:Gp,MeshNormalMaterial:Hp,MeshLambertMaterial:Up,MeshDepthMaterial:eh,MeshDistanceMaterial:nh,MeshBasicMaterial:vi,MeshMatcapMaterial:kp,LineDashedMaterial:Vp,LineBasicMaterial:ru,Material:hi});const jp={arraySlice:function(t,e,n){return jp.isTypedArray(t)?new t.constructor(t.subarray(e,void 0!==n?n:t.length)):t.slice(e,n)},convertArray:function(t,e,n){return!t||!n&&t.constructor===e?t:"number"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)},isTypedArray:function(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)},getKeyframeOrder:function(t){const e=t.length,n=new Array(e);for(let r=0;r!==e;++r)n[r]=r;return n.sort(function(e,n){return t[e]-t[n]}),n},sortedArray:function(t,e,n){const r=t.length,i=new t.constructor(r);for(let s=0,o=0;o!==r;++s){const r=n[s]*e;for(let n=0;n!==e;++n)i[o++]=t[r+n]}return i},flattenJSON:function(t,e,n,r){let i=1,s=t[0];for(;void 0!==s&&void 0===s[r];)s=t[i++];if(void 0===s)return;let o=s[r];if(void 0!==o)if(Array.isArray(o))do{void 0!==(o=s[r])&&(e.push(s.time),n.push.apply(n,o)),s=t[i++]}while(void 0!==s);else if(void 0!==o.toArray)do{void 0!==(o=s[r])&&(e.push(s.time),o.toArray(n,n.length)),s=t[i++]}while(void 0!==s);else do{void 0!==(o=s[r])&&(e.push(s.time),n.push(o)),s=t[i++]}while(void 0!==s)},subclip:function(t,e,n,r,i=30){const s=t.clone();s.name=e;const o=[];for(let l=0;l<s.tracks.length;++l){const t=s.tracks[l],e=t.getValueSize(),a=[],c=[];for(let s=0;s<t.times.length;++s){const o=t.times[s]*i;if(!(o<n||o>=r)){a.push(t.times[s]);for(let n=0;n<e;++n)c.push(t.values[s*e+n])}}0!==a.length&&(t.times=jp.convertArray(a,t.times.constructor),t.values=jp.convertArray(c,t.values.constructor),o.push(t))}s.tracks=o;let a=1/0;for(let l=0;l<s.tracks.length;++l)a>s.tracks[l].times[0]&&(a=s.tracks[l].times[0]);for(let l=0;l<s.tracks.length;++l)s.tracks[l].shift(-1*a);return s.resetDuration(),s},makeClipAdditive:function(t,e=0,n=t,r=30){r<=0&&(r=30);const i=n.tracks.length,s=e/r;for(let o=0;o<i;++o){const e=n.tracks[o],r=e.ValueTypeName;if("bool"===r||"string"===r)continue;const i=t.tracks.find(function(t){return t.name===e.name&&t.ValueTypeName===r});if(void 0===i)continue;let a=0;const l=e.getValueSize();e.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(a=l/3);let c=0;const h=i.getValueSize();i.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(c=h/3);const u=e.times.length-1;let p;if(s<=e.times[0]){const t=a,n=l-a;p=jp.arraySlice(e.values,t,n)}else if(s>=e.times[u]){const t=u*l+a,n=t+l-a;p=jp.arraySlice(e.values,t,n)}else{const t=e.createInterpolant(),n=a,r=l-a;t.evaluate(s),p=jp.arraySlice(t.resultBuffer,n,r)}if("quaternion"===r){(new Xn).fromArray(p).normalize().conjugate().toArray(p)}const d=i.times.length;for(let t=0;t<d;++t){const e=t*h+c;if("quaternion"===r)Xn.multiplyQuaternionsFlat(i.values,e,p,0,i.values,e);else{const t=h-2*c;for(let n=0;n<t;++n)i.values[e+n]-=p[n]}}}return t.blendMode=Ve,t}};function qp(t,e,n,r){this.parameterPositions=t,this._cachedIndex=0,this.resultBuffer=void 0!==r?r:new e.constructor(n),this.sampleValues=e,this.valueSize=n}function Xp(t,e,n,r){qp.call(this,t,e,n,r),this._weightPrev=-0,this._offsetPrev=-0,this._weightNext=-0,this._offsetNext=-0}function Yp(t,e,n,r){qp.call(this,t,e,n,r)}function Zp(t,e,n,r){qp.call(this,t,e,n,r)}exports.AnimationUtils=jp,Object.assign(qp.prototype,{evaluate:function(t){const e=this.parameterPositions;let n=this._cachedIndex,r=e[n],i=e[n-1];t:{e:{let s;n:{r:if(!(t<r)){for(let s=n+2;;){if(void 0===r){if(t<i)break r;return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,t,i)}if(n===s)break;if(i=r,t<(r=e[++n]))break e}s=e.length;break n}if(t>=i)break t;{const o=e[1];t<o&&(n=2,i=o);for(let s=n-2;;){if(void 0===i)return this._cachedIndex=0,this.beforeStart_(0,t,r);if(n===s)break;if(r=i,t>=(i=e[--n-1]))break e}s=n,n=0}}for(;n<s;){const r=n+s>>>1;t<e[r]?s=r:n=r+1}if(r=e[n],void 0===(i=e[n-1]))return this._cachedIndex=0,this.beforeStart_(0,t,r);if(void 0===r)return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,i,t)}this._cachedIndex=n,this.intervalChanged_(n,i,r)}return this.interpolate_(n,i,t,r)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||this.DefaultSettings_},copySampleValue_:function(t){const e=this.resultBuffer,n=this.sampleValues,r=this.valueSize,i=t*r;for(let s=0;s!==r;++s)e[s]=n[i+s];return e},interpolate_:function(){throw new Error("call to abstract method")},intervalChanged_:function(){}}),Object.assign(qp.prototype,{beforeStart_:qp.prototype.copySampleValue_,afterEnd_:qp.prototype.copySampleValue_}),Xp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Xp,DefaultSettings_:{endingStart:Ge,endingEnd:Ge},intervalChanged_:function(t,e,n){const r=this.parameterPositions;let i=t-2,s=t+1,o=r[i],a=r[s];if(void 0===o)switch(this.getSettings_().endingStart){case He:i=t,o=2*e-n;break;case Ue:o=e+r[i=r.length-2]-r[i+1];break;default:i=t,o=n}if(void 0===a)switch(this.getSettings_().endingEnd){case He:s=t,a=2*n-e;break;case Ue:s=1,a=n+r[1]-r[0];break;default:s=t-1,a=e}const l=.5*(n-e),c=this.valueSize;this._weightPrev=l/(e-o),this._weightNext=l/(a-n),this._offsetPrev=i*c,this._offsetNext=s*c},interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=this._offsetPrev,h=this._offsetNext,u=this._weightPrev,p=this._weightNext,d=(n-e)/(r-e),m=d*d,f=m*d,g=-u*f+2*u*m-u*d,x=(1+u)*f+(-1.5-2*u)*m+(-.5+u)*d+1,v=(-1-p)*f+(1.5+p)*m+.5*d,y=p*f-p*m;for(let _=0;_!==o;++_)i[_]=g*s[c+_]+x*s[l+_]+v*s[a+_]+y*s[h+_];return i}}),Yp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Yp,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=(n-e)/(r-e),h=1-c;for(let u=0;u!==o;++u)i[u]=s[l+u]*h+s[a+u]*c;return i}}),Zp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Zp,interpolate_:function(t){return this.copySampleValue_(t-1)}});class Jp{constructor(t,e,n,r){if(void 0===t)throw new Error("THREE.KeyframeTrack: track name is undefined");if(void 0===e||0===e.length)throw new Error("THREE.KeyframeTrack: no keyframes in track named "+t);this.name=t,this.times=jp.convertArray(e,this.TimeBufferType),this.values=jp.convertArray(n,this.ValueBufferType),this.setInterpolation(r||this.DefaultInterpolation)}static toJSON(t){const e=t.constructor;let n;if(e.toJSON!==this.toJSON)n=e.toJSON(t);else{n={name:t.name,times:jp.convertArray(t.times,Array),values:jp.convertArray(t.values,Array)};const e=t.getInterpolation();e!==t.DefaultInterpolation&&(n.interpolation=e)}return n.type=t.ValueTypeName,n}InterpolantFactoryMethodDiscrete(t){return new Zp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodLinear(t){return new Yp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodSmooth(t){return new Xp(this.times,this.values,this.getValueSize(),t)}setInterpolation(t){let e;switch(t){case Fe:e=this.InterpolantFactoryMethodDiscrete;break;case Oe:e=this.InterpolantFactoryMethodLinear;break;case ze:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){const e="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(e);this.setInterpolation(this.DefaultInterpolation)}return console.warn("THREE.KeyframeTrack:",e),this}return this.createInterpolant=e,this}getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return Fe;case this.InterpolantFactoryMethodLinear:return Oe;case this.InterpolantFactoryMethodSmooth:return ze}}getValueSize(){return this.values.length/this.times.length}shift(t){if(0!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]+=t}return this}scale(t){if(1!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]*=t}return this}trim(t,e){const n=this.times,r=n.length;let i=0,s=r-1;for(;i!==r&&n[i]<t;)++i;for(;-1!==s&&n[s]>e;)--s;if(++s,0!==i||s!==r){i>=s&&(i=(s=Math.max(s,1))-1);const t=this.getValueSize();this.times=jp.arraySlice(n,i,s),this.values=jp.arraySlice(this.values,i*t,s*t)}return this}validate(){let t=!0;const e=this.getValueSize();e-Math.floor(e)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),t=!1);const n=this.times,r=this.values,i=n.length;0===i&&(console.error("THREE.KeyframeTrack: Track is empty.",this),t=!1);let s=null;for(let o=0;o!==i;o++){const e=n[o];if("number"==typeof e&&isNaN(e)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,o,e),t=!1;break}if(null!==s&&s>e){console.error("THREE.KeyframeTrack: Out of order keys.",this,o,e,s),t=!1;break}s=e}if(void 0!==r&&jp.isTypedArray(r))for(let o=0,a=r.length;o!==a;++o){const e=r[o];if(isNaN(e)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,o,e),t=!1;break}}return t}optimize(){const t=jp.arraySlice(this.times),e=jp.arraySlice(this.values),n=this.getValueSize(),r=this.getInterpolation()===ze,i=t.length-1;let s=1;for(let o=1;o<i;++o){let i=!1;const a=t[o];if(a!==t[o+1]&&(1!==o||a!==t[0]))if(r)i=!0;else{const t=o*n,r=t-n,s=t+n;for(let o=0;o!==n;++o){const n=e[t+o];if(n!==e[r+o]||n!==e[s+o]){i=!0;break}}}if(i){if(o!==s){t[s]=t[o];const r=o*n,i=s*n;for(let t=0;t!==n;++t)e[i+t]=e[r+t]}++s}}if(i>0){t[s]=t[i];for(let t=i*n,r=s*n,o=0;o!==n;++o)e[r+o]=e[t+o];++s}return s!==t.length?(this.times=jp.arraySlice(t,0,s),this.values=jp.arraySlice(e,0,s*n)):(this.times=t,this.values=e),this}clone(){const t=jp.arraySlice(this.times,0),e=jp.arraySlice(this.values,0),n=new(0,this.constructor)(this.name,t,e);return n.createInterpolant=this.createInterpolant,n}}exports.KeyframeTrack=Jp,Jp.prototype.TimeBufferType=Float32Array,Jp.prototype.ValueBufferType=Float32Array,Jp.prototype.DefaultInterpolation=Oe;class Qp extends Jp{}exports.BooleanKeyframeTrack=Qp,Qp.prototype.ValueTypeName="bool",Qp.prototype.ValueBufferType=Array,Qp.prototype.DefaultInterpolation=Fe,Qp.prototype.InterpolantFactoryMethodLinear=void 0,Qp.prototype.InterpolantFactoryMethodSmooth=void 0;class Kp extends Jp{}exports.ColorKeyframeTrack=Kp,Kp.prototype.ValueTypeName="color";class $p extends Jp{}function td(t,e,n,r){qp.call(this,t,e,n,r)}exports.NumberKeyframeTrack=$p,$p.prototype.ValueTypeName="number",td.prototype=Object.assign(Object.create(qp.prototype),{constructor:td,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=(n-e)/(r-e);let l=t*o;for(let c=l+o;l!==c;l+=4)Xn.slerpFlat(i,0,s,l-o,s,l,a);return i}});class ed extends Jp{InterpolantFactoryMethodLinear(t){return new td(this.times,this.values,this.getValueSize(),t)}}exports.QuaternionKeyframeTrack=ed,ed.prototype.ValueTypeName="quaternion",ed.prototype.DefaultInterpolation=Oe,ed.prototype.InterpolantFactoryMethodSmooth=void 0;class nd extends Jp{}exports.StringKeyframeTrack=nd,nd.prototype.ValueTypeName="string",nd.prototype.ValueBufferType=Array,nd.prototype.DefaultInterpolation=Fe,nd.prototype.InterpolantFactoryMethodLinear=void 0,nd.prototype.InterpolantFactoryMethodSmooth=void 0;class rd extends Jp{}exports.VectorKeyframeTrack=rd,rd.prototype.ValueTypeName="vector";class id{constructor(t,e=-1,n,r=ke){this.name=t,this.tracks=n,this.duration=e,this.blendMode=r,this.uuid=Fn.generateUUID(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],n=t.tracks,r=1/(t.fps||1);for(let s=0,o=n.length;s!==o;++s)e.push(od(n[s]).scale(r));const i=new this(t.name,t.duration,e,t.blendMode);return i.uuid=t.uuid,i}static toJSON(t){const e=[],n=t.tracks,r={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let i=0,s=n.length;i!==s;++i)e.push(Jp.toJSON(n[i]));return r}static CreateFromMorphTargetSequence(t,e,n,r){const i=e.length,s=[];for(let o=0;o<i;o++){let t=[],a=[];t.push((o+i-1)%i,o,(o+1)%i),a.push(0,1,0);const l=jp.getKeyframeOrder(t);t=jp.sortedArray(t,1,l),a=jp.sortedArray(a,1,l),r||0!==t[0]||(t.push(i),a.push(a[0])),s.push(new $p(".morphTargetInfluences["+e[o].name+"]",t,a).scale(1/n))}return new this(t,-1,s)}static findByName(t,e){let n=t;if(!Array.isArray(t)){const e=t;n=e.geometry&&e.geometry.animations||e.animations}for(let r=0;r<n.length;r++)if(n[r].name===e)return n[r];return null}static CreateClipsFromMorphTargetSequences(t,e,n){const r={},i=/^([\w-]*?)([\d]+)$/;for(let o=0,a=t.length;o<a;o++){const e=t[o],n=e.name.match(i);if(n&&n.length>1){const t=n[1];let i=r[t];i||(r[t]=i=[]),i.push(e)}}const s=[];for(const o in r)s.push(this.CreateFromMorphTargetSequence(o,r[o],e,n));return s}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const n=function(t,e,n,r,i){if(0!==n.length){const s=[],o=[];jp.flattenJSON(n,s,o,r),0!==s.length&&i.push(new t(e,s,o))}},r=[],i=t.name||"default",s=t.fps||30,o=t.blendMode;let a=t.length||-1;const l=t.hierarchy||[];for(let c=0;c<l.length;c++){const t=l[c].keys;if(t&&0!==t.length)if(t[0].morphTargets){const e={};let n;for(n=0;n<t.length;n++)if(t[n].morphTargets)for(let r=0;r<t[n].morphTargets.length;r++)e[t[n].morphTargets[r]]=-1;for(const i in e){const e=[],s=[];for(let r=0;r!==t[n].morphTargets.length;++r){const r=t[n];e.push(r.time),s.push(r.morphTarget===i?1:0)}r.push(new $p(".morphTargetInfluence["+i+"]",e,s))}a=e.length*(s||1)}else{const i=".bones["+e[c].name+"]";n(rd,i+".position",t,"pos",r),n(ed,i+".quaternion",t,"rot",r),n(rd,i+".scale",t,"scl",r)}}return 0===r.length?null:new this(i,a,r,o)}resetDuration(){let t=0;for(let e=0,n=this.tracks.length;e!==n;++e){const n=this.tracks[e];t=Math.max(t,n.times[n.times.length-1])}return this.duration=t,this}trim(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this}validate(){let t=!0;for(let e=0;e<this.tracks.length;e++)t=t&&this.tracks[e].validate();return t}optimize(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}clone(){const t=[];for(let e=0;e<this.tracks.length;e++)t.push(this.tracks[e].clone());return new this.constructor(this.name,this.duration,t,this.blendMode)}toJSON(){return this.constructor.toJSON(this)}}function sd(t){switch(t.toLowerCase()){case"scalar":case"double":case"float":case"number":case"integer":return $p;case"vector":case"vector2":case"vector3":case"vector4":return rd;case"color":return Kp;case"quaternion":return ed;case"bool":case"boolean":return Qp;case"string":return nd}throw new Error("THREE.KeyframeTrack: Unsupported typeName: "+t)}function od(t){if(void 0===t.type)throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");const e=sd(t.type);if(void 0===t.times){const e=[],n=[];jp.flattenJSON(t.keys,e,n,"value"),t.times=e,t.values=n}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)}exports.AnimationClip=id;const ad={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}};function ld(t,e,n){const r=this;let i=!1,s=0,o=0,a=void 0;const l=[];this.onStart=void 0,this.onLoad=t,this.onProgress=e,this.onError=n,this.itemStart=function(t){o++,!1===i&&void 0!==r.onStart&&r.onStart(t,s,o),i=!0},this.itemEnd=function(t){s++,void 0!==r.onProgress&&r.onProgress(t,s,o),s===o&&(i=!1,void 0!==r.onLoad&&r.onLoad())},this.itemError=function(t){void 0!==r.onError&&r.onError(t)},this.resolveURL=function(t){return a?a(t):t},this.setURLModifier=function(t){return a=t,this},this.addHandler=function(t,e){return l.push(t,e),this},this.removeHandler=function(t){const e=l.indexOf(t);return-1!==e&&l.splice(e,2),this},this.getHandler=function(t){for(let e=0,n=l.length;e<n;e+=2){const n=l[e],r=l[e+1];if(n.global&&(n.lastIndex=0),n.test(t))return r}return null}}exports.Cache=ad;const cd=new ld;function hd(t){this.manager=void 0!==t?t:cd,this.crossOrigin="anonymous",this.withCredentials=!1,this.path="",this.resourcePath="",this.requestHeader={}}exports.DefaultLoadingManager=cd,Object.assign(hd.prototype,{load:function(){},loadAsync:function(t,e){const n=this;return new Promise(function(r,i){n.load(t,r,e,i)})},parse:function(){},setCrossOrigin:function(t){return this.crossOrigin=t,this},setWithCredentials:function(t){return this.withCredentials=t,this},setPath:function(t){return this.path=t,this},setResourcePath:function(t){return this.resourcePath=t,this},setRequestHeader:function(t){return this.requestHeader=t,this}});const ud={};function pd(t){hd.call(this,t)}pd.prototype=Object.assign(Object.create(hd.prototype),{constructor:pd,load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;if(void 0!==ud[t])return void ud[t].push({onLoad:e,onProgress:n,onError:r});const o=t.match(/^data:(.*?)(;base64)?,(.*)$/);let a;if(o){const n=o[1],s=!!o[2];let a=o[3];a=decodeURIComponent(a),s&&(a=atob(a));try{let s;const o=(this.responseType||"").toLowerCase();switch(o){case"arraybuffer":case"blob":const t=new Uint8Array(a.length);for(let n=0;n<a.length;n++)t[n]=a.charCodeAt(n);s="blob"===o?new Blob([t.buffer],{type:n}):t.buffer;break;case"document":const e=new DOMParser;s=e.parseFromString(a,n);break;case"json":s=JSON.parse(a);break;default:s=a}setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0)}catch(l){setTimeout(function(){r&&r(l),i.manager.itemError(t),i.manager.itemEnd(t)},0)}}else{ud[t]=[],ud[t].push({onLoad:e,onProgress:n,onError:r}),(a=new XMLHttpRequest).open("GET",t,!0),a.addEventListener("load",function(e){const n=this.response,r=ud[t];if(delete ud[t],200===this.status||0===this.status){0===this.status&&console.warn("THREE.FileLoader: HTTP Status 0 received."),ad.add(t,n);for(let t=0,e=r.length;t<e;t++){const e=r[t];e.onLoad&&e.onLoad(n)}i.manager.itemEnd(t)}else{for(let t=0,n=r.length;t<n;t++){const n=r[t];n.onError&&n.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)}},!1),a.addEventListener("progress",function(e){const n=ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onProgress&&r.onProgress(e)}},!1),a.addEventListener("error",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),a.addEventListener("abort",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),void 0!==this.responseType&&(a.responseType=this.responseType),void 0!==this.withCredentials&&(a.withCredentials=this.withCredentials),a.overrideMimeType&&a.overrideMimeType(void 0!==this.mimeType?this.mimeType:"text/plain");for(const t in this.requestHeader)a.setRequestHeader(t,this.requestHeader[t]);a.send(null)}return i.manager.itemStart(t),a},setResponseType:function(t){return this.responseType=t,this},setMimeType:function(t){return this.mimeType=t,this}});class dd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=[];for(let n=0;n<t.length;n++){const r=id.parse(t[n]);e.push(r)}return e}}function md(t){hd.call(this,t)}exports.AnimationLoader=dd,md.prototype=Object.assign(Object.create(hd.prototype),{constructor:md,load:function(t,e,n,r){const i=this,s=[],o=new wu,a=new pd(this.manager);a.setPath(this.path),a.setResponseType("arraybuffer"),a.setRequestHeader(this.requestHeader),a.setWithCredentials(i.withCredentials);let l=0;function c(c){a.load(t[c],function(t){const n=i.parse(t,!0);s[c]={width:n.width,height:n.height,format:n.format,mipmaps:n.mipmaps},6===(l+=1)&&(1===n.mipmapCount&&(o.minFilter=gt),o.image=s,o.format=n.format,o.needsUpdate=!0,e&&e(o))},n,r)}if(Array.isArray(t))for(let h=0,u=t.length;h<u;++h)c(h);else a.load(t,function(t){const n=i.parse(t,!0);if(n.isCubemap){const t=n.mipmaps.length/n.mipmapCount;for(let e=0;e<t;e++){s[e]={mipmaps:[]};for(let t=0;t<n.mipmapCount;t++)s[e].mipmaps.push(n.mipmaps[e*n.mipmapCount+t]),s[e].format=n.format,s[e].width=n.width,s[e].height=n.height}o.image=s}else o.image.width=n.width,o.image.height=n.height,o.mipmaps=n.mipmaps;1===n.mipmapCount&&(o.minFilter=gt),o.format=n.format,o.needsUpdate=!0,e&&e(o)},n,r);return o}});class fd extends hd{constructor(t){super(t)}load(t,e,n,r){void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o=document.createElementNS("http://www.w3.org/1999/xhtml","img");function a(){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),ad.add(t,this),e&&e(this),i.manager.itemEnd(t)}function l(e){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}return o.addEventListener("load",a,!1),o.addEventListener("error",l,!1),"data:"!==t.substr(0,5)&&void 0!==this.crossOrigin&&(o.crossOrigin=this.crossOrigin),i.manager.itemStart(t),o.src=t,o}}exports.ImageLoader=fd;class gd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=new bs,s=new fd(this.manager);s.setCrossOrigin(this.crossOrigin),s.setPath(this.path);let o=0;function a(n){s.load(t[n],function(t){i.images[n]=t,6===++o&&(i.needsUpdate=!0,e&&e(i))},void 0,r)}for(let l=0;l<t.length;++l)a(l);return i}}function xd(t){hd.call(this,t)}function vd(t){hd.call(this,t)}function yd(){this.type="Curve",this.arcLengthDivisions=200}exports.CubeTextureLoader=gd,xd.prototype=Object.assign(Object.create(hd.prototype),{constructor:xd,load:function(t,e,n,r){const i=this,s=new Ms,o=new pd(this.manager);return o.setResponseType("arraybuffer"),o.setRequestHeader(this.requestHeader),o.setPath(this.path),o.setWithCredentials(i.withCredentials),o.load(t,function(t){const n=i.parse(t);n&&(void 0!==n.image?s.image=n.image:void 0!==n.data&&(s.image.width=n.width,s.image.height=n.height,s.image.data=n.data),s.wrapS=void 0!==n.wrapS?n.wrapS:ct,s.wrapT=void 0!==n.wrapT?n.wrapT:ct,s.magFilter=void 0!==n.magFilter?n.magFilter:gt,s.minFilter=void 0!==n.minFilter?n.minFilter:gt,s.anisotropy=void 0!==n.anisotropy?n.anisotropy:1,void 0!==n.encoding&&(s.encoding=n.encoding),void 0!==n.flipY&&(s.flipY=n.flipY),void 0!==n.format&&(s.format=n.format),void 0!==n.type&&(s.type=n.type),void 0!==n.mipmaps&&(s.mipmaps=n.mipmaps,s.minFilter=yt),1===n.mipmapCount&&(s.minFilter=gt),s.needsUpdate=!0,e&&e(s,n))},n,r),s}}),vd.prototype=Object.assign(Object.create(hd.prototype),{constructor:vd,load:function(t,e,n,r){const i=new kn,s=new fd(this.manager);return s.setCrossOrigin(this.crossOrigin),s.setPath(this.path),s.load(t,function(n){i.image=n;const r=t.search(/\.jpe?g($|\?)/i)>0||0===t.search(/^data\:image\/jpeg/);i.format=r?Bt:Nt,i.needsUpdate=!0,void 0!==e&&e(i)},n,r),i}}),Object.assign(yd.prototype,{getPoint:function(){return console.warn("THREE.Curve: .getPoint() not implemented."),null},getPointAt:function(t,e){const n=this.getUtoTmapping(t);return this.getPoint(n,e)},getPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return e},getSpacedPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPointAt(n/t));return e},getLength:function(){const t=this.getLengths();return t[t.length-1]},getLengths:function(t){if(void 0===t&&(t=this.arcLengthDivisions),this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;const e=[];let n,r=this.getPoint(0),i=0;e.push(0);for(let s=1;s<=t;s++)i+=(n=this.getPoint(s/t)).distanceTo(r),e.push(i),r=n;return this.cacheArcLengths=e,e},updateArcLengths:function(){this.needsUpdate=!0,this.getLengths()},getUtoTmapping:function(t,e){const n=this.getLengths();let r=0;const i=n.length;let s;s=e||t*n[i-1];let o,a=0,l=i-1;for(;a<=l;)if((o=n[r=Math.floor(a+(l-a)/2)]-s)<0)a=r+1;else{if(!(o>0)){l=r;break}l=r-1}if(n[r=l]===s)return r/(i-1);const c=n[r];return(r+(s-c)/(n[r+1]-c))/(i-1)},getTangent:function(t,e){let n=t-1e-4,r=t+1e-4;n<0&&(n=0),r>1&&(r=1);const i=this.getPoint(n),s=this.getPoint(r),o=e||(i.isVector2?new On:new Yn);return o.copy(s).sub(i).normalize(),o},getTangentAt:function(t,e){const n=this.getUtoTmapping(t);return this.getTangent(n,e)},computeFrenetFrames:function(t,e){const n=new Yn,r=[],i=[],s=[],o=new Yn,a=new wr;for(let p=0;p<=t;p++){const e=p/t;r[p]=this.getTangentAt(e,new Yn),r[p].normalize()}i[0]=new Yn,s[0]=new Yn;let l=Number.MAX_VALUE;const c=Math.abs(r[0].x),h=Math.abs(r[0].y),u=Math.abs(r[0].z);c<=l&&(l=c,n.set(1,0,0)),h<=l&&(l=h,n.set(0,1,0)),u<=l&&n.set(0,0,1),o.crossVectors(r[0],n).normalize(),i[0].crossVectors(r[0],o),s[0].crossVectors(r[0],i[0]);for(let p=1;p<=t;p++){if(i[p]=i[p-1].clone(),s[p]=s[p-1].clone(),o.crossVectors(r[p-1],r[p]),o.length()>Number.EPSILON){o.normalize();const t=Math.acos(Fn.clamp(r[p-1].dot(r[p]),-1,1));i[p].applyMatrix4(a.makeRotationAxis(o,t))}s[p].crossVectors(r[p],i[p])}if(!0===e){let e=Math.acos(Fn.clamp(i[0].dot(i[t]),-1,1));e/=t,r[0].dot(o.crossVectors(i[0],i[t]))>0&&(e=-e);for(let n=1;n<=t;n++)i[n].applyMatrix4(a.makeRotationAxis(r[n],e*n)),s[n].crossVectors(r[n],i[n])}return{tangents:r,normals:i,binormals:s}},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this},toJSON:function(){const t={metadata:{version:4.5,type:"Curve",generator:"Curve.toJSON"}};return t.arcLengthDivisions=this.arcLengthDivisions,t.type=this.type,t},fromJSON:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}});class _d extends yd{constructor(t=0,e=0,n=1,r=1,i=0,s=2*Math.PI,o=!1,a=0){super(),this.type="EllipseCurve",this.aX=t,this.aY=e,this.xRadius=n,this.yRadius=r,this.aStartAngle=i,this.aEndAngle=s,this.aClockwise=o,this.aRotation=a}getPoint(t,e){const n=e||new On,r=2*Math.PI;let i=this.aEndAngle-this.aStartAngle;const s=Math.abs(i)<Number.EPSILON;for(;i<0;)i+=r;for(;i>r;)i-=r;i<Number.EPSILON&&(i=s?0:r),!0!==this.aClockwise||s||(i===r?i=-r:i-=r);const o=this.aStartAngle+t*i;let a=this.aX+this.xRadius*Math.cos(o),l=this.aY+this.yRadius*Math.sin(o);if(0!==this.aRotation){const t=Math.cos(this.aRotation),e=Math.sin(this.aRotation),n=a-this.aX,r=l-this.aY;a=n*t-r*e+this.aX,l=n*e+r*t+this.aY}return n.set(a,l)}copy(t){return super.copy(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}toJSON(){const t=super.toJSON();return t.aX=this.aX,t.aY=this.aY,t.xRadius=this.xRadius,t.yRadius=this.yRadius,t.aStartAngle=this.aStartAngle,t.aEndAngle=this.aEndAngle,t.aClockwise=this.aClockwise,t.aRotation=this.aRotation,t}fromJSON(t){return super.fromJSON(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}}exports.EllipseCurve=_d,_d.prototype.isEllipseCurve=!0;class bd extends _d{constructor(t,e,n,r,i,s){super(t,e,n,n,r,i,s),this.type="ArcCurve"}}function wd(){let t=0,e=0,n=0,r=0;function i(i,s,o,a){t=i,e=o,n=-3*i+3*s-2*o-a,r=2*i-2*s+o+a}return{initCatmullRom:function(t,e,n,r,s){i(e,n,s*(n-t),s*(r-e))},initNonuniformCatmullRom:function(t,e,n,r,s,o,a){let l=(e-t)/s-(n-t)/(s+o)+(n-e)/o,c=(n-e)/o-(r-e)/(o+a)+(r-n)/a;i(e,n,l*=o,c*=o)},calc:function(i){const s=i*i;return t+e*i+n*s+r*(s*i)}}}exports.ArcCurve=bd,bd.prototype.isArcCurve=!0;const Md=new Yn,Sd=new wd,Td=new wd,Ed=new wd;class Ad extends yd{constructor(t=[],e=!1,n="centripetal",r=.5){super(),this.type="CatmullRomCurve3",this.points=t,this.closed=e,this.curveType=n,this.tension=r}getPoint(t,e=new Yn){const n=e,r=this.points,i=r.length,s=(i-(this.closed?0:1))*t;let o,a,l=Math.floor(s),c=s-l;this.closed?l+=l>0?0:(Math.floor(Math.abs(l)/i)+1)*i:0===c&&l===i-1&&(l=i-2,c=1),this.closed||l>0?o=r[(l-1)%i]:(Md.subVectors(r[0],r[1]).add(r[0]),o=Md);const h=r[l%i],u=r[(l+1)%i];if(this.closed||l+2<i?a=r[(l+2)%i]:(Md.subVectors(r[i-1],r[i-2]).add(r[i-1]),a=Md),"centripetal"===this.curveType||"chordal"===this.curveType){const t="chordal"===this.curveType?.5:.25;let e=Math.pow(o.distanceToSquared(h),t),n=Math.pow(h.distanceToSquared(u),t),r=Math.pow(u.distanceToSquared(a),t);n<1e-4&&(n=1),e<1e-4&&(e=n),r<1e-4&&(r=n),Sd.initNonuniformCatmullRom(o.x,h.x,u.x,a.x,e,n,r),Td.initNonuniformCatmullRom(o.y,h.y,u.y,a.y,e,n,r),Ed.initNonuniformCatmullRom(o.z,h.z,u.z,a.z,e,n,r)}else"catmullrom"===this.curveType&&(Sd.initCatmullRom(o.x,h.x,u.x,a.x,this.tension),Td.initCatmullRom(o.y,h.y,u.y,a.y,this.tension),Ed.initCatmullRom(o.z,h.z,u.z,a.z,this.tension));return n.set(Sd.calc(c),Td.calc(c),Ed.calc(c)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t.closed=this.closed,t.curveType=this.curveType,t.tension=this.tension,t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new Yn).fromArray(n))}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}}function Ld(t,e,n,r,i){const s=.5*(r-e),o=.5*(i-n),a=t*t;return(2*n-2*r+s+o)*(t*a)+(-3*n+3*r-2*s-o)*a+s*t+n}function Rd(t,e){const n=1-t;return n*n*e}function Cd(t,e){return 2*(1-t)*t*e}function Pd(t,e){return t*t*e}function Dd(t,e,n,r){return Rd(t,e)+Cd(t,n)+Pd(t,r)}function Id(t,e){const n=1-t;return n*n*n*e}function Bd(t,e){const n=1-t;return 3*n*n*t*e}function Nd(t,e){return 3*(1-t)*t*t*e}function Fd(t,e){return t*t*t*e}function Od(t,e,n,r,i){return Id(t,e)+Bd(t,n)+Nd(t,r)+Fd(t,i)}exports.CatmullRomCurve3=Ad,Ad.prototype.isCatmullRomCurve3=!0;class zd extends yd{constructor(t=new On,e=new On,n=new On,r=new On){super(),this.type="CubicBezierCurve",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve=zd,zd.prototype.isCubicBezierCurve=!0;class Gd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn,r=new Yn){super(),this.type="CubicBezierCurve3",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y),Od(t,r.z,i.z,s.z,o.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve3=Gd,Gd.prototype.isCubicBezierCurve3=!0;class Hd extends yd{constructor(t=new On,e=new On){super(),this.type="LineCurve",this.v1=t,this.v2=e}getPoint(t,e=new On){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e){const n=e||new On;return n.copy(this.v2).sub(this.v1).normalize(),n}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve=Hd,Hd.prototype.isLineCurve=!0;class Ud extends yd{constructor(t=new Yn,e=new Yn){super(),this.type="LineCurve3",this.isLineCurve3=!0,this.v1=t,this.v2=e}getPoint(t,e=new Yn){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve3=Ud;class kd extends yd{constructor(t=new On,e=new On,n=new On){super(),this.type="QuadraticBezierCurve",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve=kd,kd.prototype.isQuadraticBezierCurve=!0;class Vd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn){super(),this.type="QuadraticBezierCurve3",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y),Dd(t,r.z,i.z,s.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve3=Vd,Vd.prototype.isQuadraticBezierCurve3=!0;class Wd extends yd{constructor(t=[]){super(),this.type="SplineCurve",this.points=t}getPoint(t,e=new On){const n=e,r=this.points,i=(r.length-1)*t,s=Math.floor(i),o=i-s,a=r[0===s?s:s-1],l=r[s],c=r[s>r.length-2?r.length-1:s+1],h=r[s>r.length-3?r.length-1:s+2];return n.set(Ld(o,a.x,l.x,c.x,h.x),Ld(o,a.y,l.y,c.y,h.y)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new On).fromArray(n))}return this}}exports.SplineCurve=Wd,Wd.prototype.isSplineCurve=!0;var jd=Object.freeze({__proto__:null,ArcCurve:bd,CatmullRomCurve3:Ad,CubicBezierCurve:zd,CubicBezierCurve3:Gd,EllipseCurve:_d,LineCurve:Hd,LineCurve3:Ud,QuadraticBezierCurve:kd,QuadraticBezierCurve3:Vd,SplineCurve:Wd});class qd extends yd{constructor(){super(),this.type="CurvePath",this.curves=[],this.autoClose=!1}add(t){this.curves.push(t)}closePath(){const t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);t.equals(e)||this.curves.push(new Hd(e,t))}getPoint(t){const e=t*this.getLength(),n=this.getCurveLengths();let r=0;for(;r<n.length;){if(n[r]>=e){const t=n[r]-e,i=this.curves[r],s=i.getLength(),o=0===s?0:1-t/s;return i.getPointAt(o)}r++}return null}getLength(){const t=this.getCurveLengths();return t[t.length-1]}updateArcLengths(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()}getCurveLengths(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;const t=[];let e=0;for(let n=0,r=this.curves.length;n<r;n++)e+=this.curves[n].getLength(),t.push(e);return this.cacheLengths=t,t}getSpacedPoints(t=40){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return this.autoClose&&e.push(e[0]),e}getPoints(t=12){const e=[];let n;for(let r=0,i=this.curves;r<i.length;r++){const s=i[r],o=s&&s.isEllipseCurve?2*t:s&&(s.isLineCurve||s.isLineCurve3)?1:s&&s.isSplineCurve?t*s.points.length:t,a=s.getPoints(o);for(let t=0;t<a.length;t++){const r=a[t];n&&n.equals(r)||(e.push(r),n=r)}}return this.autoClose&&e.length>1&&!e[e.length-1].equals(e[0])&&e.push(e[0]),e}copy(t){super.copy(t),this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push(n.clone())}return this.autoClose=t.autoClose,this}toJSON(){const t=super.toJSON();t.autoClose=this.autoClose,t.curves=[];for(let e=0,n=this.curves.length;e<n;e++){const n=this.curves[e];t.curves.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.autoClose=t.autoClose,this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push((new jd[n.type]).fromJSON(n))}return this}}exports.CurvePath=qd;class Xd extends qd{constructor(t){super(),this.type="Path",this.currentPoint=new On,t&&this.setFromPoints(t)}setFromPoints(t){this.moveTo(t[0].x,t[0].y);for(let e=1,n=t.length;e<n;e++)this.lineTo(t[e].x,t[e].y);return this}moveTo(t,e){return this.currentPoint.set(t,e),this}lineTo(t,e){const n=new Hd(this.currentPoint.clone(),new On(t,e));return this.curves.push(n),this.currentPoint.set(t,e),this}quadraticCurveTo(t,e,n,r){const i=new kd(this.currentPoint.clone(),new On(t,e),new On(n,r));return this.curves.push(i),this.currentPoint.set(n,r),this}bezierCurveTo(t,e,n,r,i,s){const o=new zd(this.currentPoint.clone(),new On(t,e),new On(n,r),new On(i,s));return this.curves.push(o),this.currentPoint.set(i,s),this}splineThru(t){const e=[this.currentPoint.clone()].concat(t),n=new Wd(e);return this.curves.push(n),this.currentPoint.copy(t[t.length-1]),this}arc(t,e,n,r,i,s){const o=this.currentPoint.x,a=this.currentPoint.y;return this.absarc(t+o,e+a,n,r,i,s),this}absarc(t,e,n,r,i,s){return this.absellipse(t,e,n,n,r,i,s),this}ellipse(t,e,n,r,i,s,o,a){const l=this.currentPoint.x,c=this.currentPoint.y;return this.absellipse(t+l,e+c,n,r,i,s,o,a),this}absellipse(t,e,n,r,i,s,o,a){const l=new _d(t,e,n,r,i,s,o,a);if(this.curves.length>0){const t=l.getPoint(0);t.equals(this.currentPoint)||this.lineTo(t.x,t.y)}this.curves.push(l);const c=l.getPoint(1);return this.currentPoint.copy(c),this}copy(t){return super.copy(t),this.currentPoint.copy(t.currentPoint),this}toJSON(){const t=super.toJSON();return t.currentPoint=this.currentPoint.toArray(),t}fromJSON(t){return super.fromJSON(t),this.currentPoint.fromArray(t.currentPoint),this}}exports.Path=Xd;class Yd extends Xd{constructor(t){super(t),this.uuid=Fn.generateUUID(),this.type="Shape",this.holes=[]}getPointsHoles(t){const e=[];for(let n=0,r=this.holes.length;n<r;n++)e[n]=this.holes[n].getPoints(t);return e}extractPoints(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}}copy(t){super.copy(t),this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.uuid=this.uuid,t.holes=[];for(let e=0,n=this.holes.length;e<n;e++){const n=this.holes[e];t.holes.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.uuid=t.uuid,this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push((new Xd).fromJSON(n))}return this}}exports.Shape=Yd;class Zd extends Xr{constructor(t,e=1){super(),this.type="Light",this.color=new xi(t),this.intensity=e}copy(t){return super.copy(t),this.color.copy(t.color),this.intensity=t.intensity,this}toJSON(t){const e=super.toJSON(t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}exports.Light=Zd,Zd.prototype.isLight=!0;class Jd extends Zd{constructor(t,e,n){super(t,n),this.type="HemisphereLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.groundColor=new xi(e)}copy(t){return Zd.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}exports.HemisphereLight=Jd,Jd.prototype.isHemisphereLight=!0;const Qd=new wr,Kd=new Yn,$d=new Yn;class tm{constructor(t){this.camera=t,this.bias=0,this.normalBias=0,this.radius=1,this.mapSize=new On(512,512),this.map=null,this.mapPass=null,this.matrix=new wr,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new Es,this._frameExtents=new On(1,1),this._viewportCount=1,this._viewports=[new Wn(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,n=this.matrix;Kd.setFromMatrixPosition(t.matrixWorld),e.position.copy(Kd),$d.setFromMatrixPosition(t.target.matrixWorld),e.lookAt($d),e.updateMatrixWorld(),Qd.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Qd),n.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),n.multiply(e.projectionMatrix),n.multiply(e.matrixWorldInverse)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}copy(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class em extends tm{constructor(){super(new xs(50,1,.5,500)),this.focus=1}updateMatrices(t){const e=this.camera,n=2*Fn.RAD2DEG*t.angle*this.focus,r=this.mapSize.width/this.mapSize.height,i=t.distance||e.far;n===e.fov&&r===e.aspect&&i===e.far||(e.fov=n,e.aspect=r,e.far=i,e.updateProjectionMatrix()),super.updateMatrices(t)}}em.prototype.isSpotLightShadow=!0;class nm extends Zd{constructor(t,e,n=0,r=Math.PI/3,i=0,s=1){super(t,e),this.type="SpotLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.distance=n,this.angle=r,this.penumbra=i,this.decay=s,this.shadow=new em}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}copy(t){return super.copy(t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.SpotLight=nm,nm.prototype.isSpotLight=!0;const rm=new wr,im=new Yn,sm=new Yn;class om extends tm{constructor(){super(new xs(90,1,.5,500)),this._frameExtents=new On(4,2),this._viewportCount=6,this._viewports=[new Wn(2,1,1,1),new Wn(0,1,1,1),new Wn(3,1,1,1),new Wn(1,1,1,1),new Wn(3,0,1,1),new Wn(1,0,1,1)],this._cubeDirections=[new Yn(1,0,0),new Yn(-1,0,0),new Yn(0,0,1),new Yn(0,0,-1),new Yn(0,1,0),new Yn(0,-1,0)],this._cubeUps=[new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,0,1),new Yn(0,0,-1)]}updateMatrices(t,e=0){const n=this.camera,r=this.matrix;im.setFromMatrixPosition(t.matrixWorld),n.position.copy(im),sm.copy(n.position),sm.add(this._cubeDirections[e]),n.up.copy(this._cubeUps[e]),n.lookAt(sm),n.updateMatrixWorld(),r.makeTranslation(-im.x,-im.y,-im.z),rm.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),this._frustum.setFromProjectionMatrix(rm)}}om.prototype.isPointLightShadow=!0;class am extends Zd{constructor(t,e,n=0,r=1){super(t,e),this.type="PointLight",this.distance=n,this.decay=r,this.shadow=new om}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}copy(t){return super.copy(t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}exports.PointLight=am,am.prototype.isPointLight=!0;class lm extends gs{constructor(t=-1,e=1,n=1,r=-1,i=.1,s=2e3){super(),this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=n,this.bottom=r,this.near=i,this.far=s,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,n,r,i,s){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,r=(this.top+this.bottom)/2;let i=n-t,s=n+t,o=r+e,a=r-e;if(null!==this.view&&this.view.enabled){const t=(this.right-this.left)/this.view.fullWidth/this.zoom,e=(this.top-this.bottom)/this.view.fullHeight/this.zoom;s=(i+=t*this.view.offsetX)+t*this.view.width,a=(o-=e*this.view.offsetY)-e*this.view.height}this.projectionMatrix.makeOrthographic(i,s,o,a,this.near,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}exports.OrthographicCamera=lm,lm.prototype.isOrthographicCamera=!0;class cm extends tm{constructor(){super(new lm(-5,5,5,-5,.5,500))}}cm.prototype.isDirectionalLightShadow=!0;class hm extends Zd{constructor(t,e){super(t,e),this.type="DirectionalLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.shadow=new cm}copy(t){return super.copy(t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.DirectionalLight=hm,hm.prototype.isDirectionalLight=!0;class um extends Zd{constructor(t,e){super(t,e),this.type="AmbientLight"}}exports.AmbientLight=um,um.prototype.isAmbientLight=!0;class pm extends Zd{constructor(t,e,n=10,r=10){super(t,e),this.type="RectAreaLight",this.width=n,this.height=r}copy(t){return super.copy(t),this.width=t.width,this.height=t.height,this}toJSON(t){const e=super.toJSON(t);return e.object.width=this.width,e.object.height=this.height,e}}exports.RectAreaLight=pm,pm.prototype.isRectAreaLight=!0;class dm{constructor(){this.coefficients=[];for(let t=0;t<9;t++)this.coefficients.push(new Yn)}set(t){for(let e=0;e<9;e++)this.coefficients[e].copy(t[e]);return this}zero(){for(let t=0;t<9;t++)this.coefficients[t].set(0,0,0);return this}getAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.282095),e.addScaledVector(s[1],.488603*r),e.addScaledVector(s[2],.488603*i),e.addScaledVector(s[3],.488603*n),e.addScaledVector(s[4],n*r*1.092548),e.addScaledVector(s[5],r*i*1.092548),e.addScaledVector(s[6],.315392*(3*i*i-1)),e.addScaledVector(s[7],n*i*1.092548),e.addScaledVector(s[8],.546274*(n*n-r*r)),e}getIrradianceAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.886227),e.addScaledVector(s[1],1.023328*r),e.addScaledVector(s[2],1.023328*i),e.addScaledVector(s[3],1.023328*n),e.addScaledVector(s[4],.858086*n*r),e.addScaledVector(s[5],.858086*r*i),e.addScaledVector(s[6],.743125*i*i-.247708),e.addScaledVector(s[7],.858086*n*i),e.addScaledVector(s[8],.429043*(n*n-r*r)),e}add(t){for(let e=0;e<9;e++)this.coefficients[e].add(t.coefficients[e]);return this}addScaledSH(t,e){for(let n=0;n<9;n++)this.coefficients[n].addScaledVector(t.coefficients[n],e);return this}scale(t){for(let e=0;e<9;e++)this.coefficients[e].multiplyScalar(t);return this}lerp(t,e){for(let n=0;n<9;n++)this.coefficients[n].lerp(t.coefficients[n],e);return this}equals(t){for(let e=0;e<9;e++)if(!this.coefficients[e].equals(t.coefficients[e]))return!1;return!0}copy(t){return this.set(t.coefficients)}clone(){return(new this.constructor).copy(this)}fromArray(t,e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].fromArray(t,e+3*r);return this}toArray(t=[],e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].toArray(t,e+3*r);return t}static getBasisAt(t,e){const n=t.x,r=t.y,i=t.z;e[0]=.282095,e[1]=.488603*r,e[2]=.488603*i,e[3]=.488603*n,e[4]=1.092548*n*r,e[5]=1.092548*r*i,e[6]=.315392*(3*i*i-1),e[7]=1.092548*n*i,e[8]=.546274*(n*n-r*r)}}exports.SphericalHarmonics3=dm,dm.prototype.isSphericalHarmonics3=!0;class mm extends Zd{constructor(t=new dm,e=1){super(void 0,e),this.sh=t}copy(t){return super.copy(t),this.sh.copy(t.sh),this}fromJSON(t){return this.intensity=t.intensity,this.sh.fromArray(t.sh),this}toJSON(t){const e=super.toJSON(t);return e.object.sh=this.sh.toArray(),e}}exports.LightProbe=mm,mm.prototype.isLightProbe=!0;class fm extends hd{constructor(t){super(t),this.textures={}}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=this.textures;function n(t){return void 0===e[t]&&console.warn("THREE.MaterialLoader: Undefined texture",t),e[t]}const r=new Wp[t.type];if(void 0!==t.uuid&&(r.uuid=t.uuid),void 0!==t.name&&(r.name=t.name),void 0!==t.color&&void 0!==r.color&&r.color.setHex(t.color),void 0!==t.roughness&&(r.roughness=t.roughness),void 0!==t.metalness&&(r.metalness=t.metalness),void 0!==t.sheen&&(r.sheen=(new xi).setHex(t.sheen)),void 0!==t.emissive&&void 0!==r.emissive&&r.emissive.setHex(t.emissive),void 0!==t.specular&&void 0!==r.specular&&r.specular.setHex(t.specular),void 0!==t.shininess&&(r.shininess=t.shininess),void 0!==t.clearcoat&&(r.clearcoat=t.clearcoat),void 0!==t.clearcoatRoughness&&(r.clearcoatRoughness=t.clearcoatRoughness),void 0!==t.fog&&(r.fog=t.fog),void 0!==t.flatShading&&(r.flatShading=t.flatShading),void 0!==t.blending&&(r.blending=t.blending),void 0!==t.combine&&(r.combine=t.combine),void 0!==t.side&&(r.side=t.side),void 0!==t.opacity&&(r.opacity=t.opacity),void 0!==t.transparent&&(r.transparent=t.transparent),void 0!==t.alphaTest&&(r.alphaTest=t.alphaTest),void 0!==t.depthTest&&(r.depthTest=t.depthTest),void 0!==t.depthWrite&&(r.depthWrite=t.depthWrite),void 0!==t.colorWrite&&(r.colorWrite=t.colorWrite),void 0!==t.stencilWrite&&(r.stencilWrite=t.stencilWrite),void 0!==t.stencilWriteMask&&(r.stencilWriteMask=t.stencilWriteMask),void 0!==t.stencilFunc&&(r.stencilFunc=t.stencilFunc),void 0!==t.stencilRef&&(r.stencilRef=t.stencilRef),void 0!==t.stencilFuncMask&&(r.stencilFuncMask=t.stencilFuncMask),void 0!==t.stencilFail&&(r.stencilFail=t.stencilFail),void 0!==t.stencilZFail&&(r.stencilZFail=t.stencilZFail),void 0!==t.stencilZPass&&(r.stencilZPass=t.stencilZPass),void 0!==t.wireframe&&(r.wireframe=t.wireframe),void 0!==t.wireframeLinewidth&&(r.wireframeLinewidth=t.wireframeLinewidth),void 0!==t.wireframeLinecap&&(r.wireframeLinecap=t.wireframeLinecap),void 0!==t.wireframeLinejoin&&(r.wireframeLinejoin=t.wireframeLinejoin),void 0!==t.rotation&&(r.rotation=t.rotation),1!==t.linewidth&&(r.linewidth=t.linewidth),void 0!==t.dashSize&&(r.dashSize=t.dashSize),void 0!==t.gapSize&&(r.gapSize=t.gapSize),void 0!==t.scale&&(r.scale=t.scale),void 0!==t.polygonOffset&&(r.polygonOffset=t.polygonOffset),void 0!==t.polygonOffsetFactor&&(r.polygonOffsetFactor=t.polygonOffsetFactor),void 0!==t.polygonOffsetUnits&&(r.polygonOffsetUnits=t.polygonOffsetUnits),void 0!==t.skinning&&(r.skinning=t.skinning),void 0!==t.morphTargets&&(r.morphTargets=t.morphTargets),void 0!==t.morphNormals&&(r.morphNormals=t.morphNormals),void 0!==t.dithering&&(r.dithering=t.dithering),void 0!==t.vertexTangents&&(r.vertexTangents=t.vertexTangents),void 0!==t.visible&&(r.visible=t.visible),void 0!==t.toneMapped&&(r.toneMapped=t.toneMapped),void 0!==t.userData&&(r.userData=t.userData),void 0!==t.vertexColors&&("number"==typeof t.vertexColors?r.vertexColors=t.vertexColors>0:r.vertexColors=t.vertexColors),void 0!==t.uniforms)for(const i in t.uniforms){const e=t.uniforms[i];switch(r.uniforms[i]={},e.type){case"t":r.uniforms[i].value=n(e.value);break;case"c":r.uniforms[i].value=(new xi).setHex(e.value);break;case"v2":r.uniforms[i].value=(new On).fromArray(e.value);break;case"v3":r.uniforms[i].value=(new Yn).fromArray(e.value);break;case"v4":r.uniforms[i].value=(new Wn).fromArray(e.value);break;case"m3":r.uniforms[i].value=(new zn).fromArray(e.value);break;case"m4":r.uniforms[i].value=(new wr).fromArray(e.value);break;default:r.uniforms[i].value=e.value}}if(void 0!==t.defines&&(r.defines=t.defines),void 0!==t.vertexShader&&(r.vertexShader=t.vertexShader),void 0!==t.fragmentShader&&(r.fragmentShader=t.fragmentShader),void 0!==t.extensions)for(const i in t.extensions)r.extensions[i]=t.extensions[i];if(void 0!==t.shading&&(r.flatShading=1===t.shading),void 0!==t.size&&(r.size=t.size),void 0!==t.sizeAttenuation&&(r.sizeAttenuation=t.sizeAttenuation),void 0!==t.map&&(r.map=n(t.map)),void 0!==t.matcap&&(r.matcap=n(t.matcap)),void 0!==t.alphaMap&&(r.alphaMap=n(t.alphaMap)),void 0!==t.bumpMap&&(r.bumpMap=n(t.bumpMap)),void 0!==t.bumpScale&&(r.bumpScale=t.bumpScale),void 0!==t.normalMap&&(r.normalMap=n(t.normalMap)),void 0!==t.normalMapType&&(r.normalMapType=t.normalMapType),void 0!==t.normalScale){let e=t.normalScale;!1===Array.isArray(e)&&(e=[e,e]),r.normalScale=(new On).fromArray(e)}return void 0!==t.displacementMap&&(r.displacementMap=n(t.displacementMap)),void 0!==t.displacementScale&&(r.displacementScale=t.displacementScale),void 0!==t.displacementBias&&(r.displacementBias=t.displacementBias),void 0!==t.roughnessMap&&(r.roughnessMap=n(t.roughnessMap)),void 0!==t.metalnessMap&&(r.metalnessMap=n(t.metalnessMap)),void 0!==t.emissiveMap&&(r.emissiveMap=n(t.emissiveMap)),void 0!==t.emissiveIntensity&&(r.emissiveIntensity=t.emissiveIntensity),void 0!==t.specularMap&&(r.specularMap=n(t.specularMap)),void 0!==t.envMap&&(r.envMap=n(t.envMap)),void 0!==t.envMapIntensity&&(r.envMapIntensity=t.envMapIntensity),void 0!==t.reflectivity&&(r.reflectivity=t.reflectivity),void 0!==t.refractionRatio&&(r.refractionRatio=t.refractionRatio),void 0!==t.lightMap&&(r.lightMap=n(t.lightMap)),void 0!==t.lightMapIntensity&&(r.lightMapIntensity=t.lightMapIntensity),void 0!==t.aoMap&&(r.aoMap=n(t.aoMap)),void 0!==t.aoMapIntensity&&(r.aoMapIntensity=t.aoMapIntensity),void 0!==t.gradientMap&&(r.gradientMap=n(t.gradientMap)),void 0!==t.clearcoatMap&&(r.clearcoatMap=n(t.clearcoatMap)),void 0!==t.clearcoatRoughnessMap&&(r.clearcoatRoughnessMap=n(t.clearcoatRoughnessMap)),void 0!==t.clearcoatNormalMap&&(r.clearcoatNormalMap=n(t.clearcoatNormalMap)),void 0!==t.clearcoatNormalScale&&(r.clearcoatNormalScale=(new On).fromArray(t.clearcoatNormalScale)),void 0!==t.transmission&&(r.transmission=t.transmission),void 0!==t.transmissionMap&&(r.transmissionMap=n(t.transmissionMap)),r}setTextures(t){return this.textures=t,this}}exports.MaterialLoader=fm;const gm={decodeText:function(t){if("undefined"!=typeof TextDecoder)return(new TextDecoder).decode(t);let e="";for(let r=0,i=t.length;r<i;r++)e+=String.fromCharCode(t[r]);try{return decodeURIComponent(escape(e))}catch(n){return e}},extractUrlBase:function(t){const e=t.lastIndexOf("/");return-1===e?"./":t.substr(0,e+1)}};function xm(){ki.call(this),this.type="InstancedBufferGeometry",this.instanceCount=1/0}function vm(t,e,n,r){"number"==typeof n&&(r=n,n=!1,console.error("THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.")),bi.call(this,t,e,n),this.meshPerAttribute=r||1}exports.LoaderUtils=gm,xm.prototype=Object.assign(Object.create(ki.prototype),{constructor:xm,isInstancedBufferGeometry:!0,copy:function(t){return ki.prototype.copy.call(this,t),this.instanceCount=t.instanceCount,this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){const t=ki.prototype.toJSON.call(this);return t.instanceCount=this.instanceCount,t.isInstancedBufferGeometry=!0,t}}),vm.prototype=Object.assign(Object.create(bi.prototype),{constructor:vm,isInstancedBufferAttribute:!0,copy:function(t){return bi.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},toJSON:function(){const t=bi.prototype.toJSON.call(this);return t.meshPerAttribute=this.meshPerAttribute,t.isInstancedBufferAttribute=!0,t}});class ym extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e={},n={};function r(t,r){if(void 0!==e[r])return e[r];const i=t.interleavedBuffers[r],s=function(t,e){if(void 0!==n[e])return n[e];const r=t.arrayBuffers[e],i=new Uint32Array(r).buffer;return n[e]=i,i}(t,i.buffer),o=new _h(Bi(i.type,s),i.stride);return o.uuid=i.uuid,e[r]=o,o}const i=t.isInstancedBufferGeometry?new xm:new ki,s=t.data.index;if(void 0!==s){const t=Bi(s.type,s.array);i.setIndex(new bi(t,1))}const o=t.data.attributes;for(const h in o){const e=o[h];let n;if(e.isInterleavedBufferAttribute){n=new wh(r(t.data,e.data),e.itemSize,e.offset,e.normalized)}else{const t=Bi(e.type,e.array);n=new(e.isInstancedBufferAttribute?vm:bi)(t,e.itemSize,e.normalized)}void 0!==e.name&&(n.name=e.name),i.setAttribute(h,n)}const a=t.data.morphAttributes;if(a)for(const h in a){const e=a[h],n=[];for(let i=0,s=e.length;i<s;i++){const s=e[i];let o;if(s.isInterleavedBufferAttribute){o=new wh(r(t.data,s.data),s.itemSize,s.offset,s.normalized)}else{o=new bi(Bi(s.type,s.array),s.itemSize,s.normalized)}void 0!==s.name&&(o.name=s.name),n.push(o)}i.morphAttributes[h]=n}t.data.morphTargetsRelative&&(i.morphTargetsRelative=!0);const l=t.data.groups||t.data.drawcalls||t.data.offsets;if(void 0!==l)for(let h=0,u=l.length;h!==u;++h){const t=l[h];i.addGroup(t.start,t.count,t.materialIndex)}const c=t.data.boundingSphere;if(void 0!==c){const t=new Yn;void 0!==c.center&&t.fromArray(c.center),i.boundingSphere=new dr(t,c.radius)}return t.name&&(i.name=t.name),t.userData&&(i.userData=t.userData),i}}exports.BufferGeometryLoader=ym;class _m extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=""===this.path?gm.extractUrlBase(t):this.path;this.resourcePath=this.resourcePath||s;const o=new pd(this.manager);o.setPath(this.path),o.setRequestHeader(this.requestHeader),o.setWithCredentials(this.withCredentials),o.load(t,function(n){let s=null;try{s=JSON.parse(n)}catch(a){return void 0!==r&&r(a),void console.error("THREE:ObjectLoader: Can't parse "+t+".",a.message)}const o=s.metadata;void 0!==o&&void 0!==o.type&&"geometry"!==o.type.toLowerCase()?i.parse(s,e):console.error("THREE.ObjectLoader: Can't load "+t)},n,r)}parse(t,e){const n=this.parseAnimations(t.animations),r=this.parseShapes(t.shapes),i=this.parseGeometries(t.geometries,r),s=this.parseImages(t.images,function(){void 0!==e&&e(l)}),o=this.parseTextures(t.textures,s),a=this.parseMaterials(t.materials,o),l=this.parseObject(t.object,i,a,n),c=this.parseSkeletons(t.skeletons,l);if(this.bindSkeletons(l,c),void 0!==e){let t=!1;for(const e in s)if(s[e]instanceof HTMLImageElement){t=!0;break}!1===t&&e(l)}return l}parseShapes(t){const e={};if(void 0!==t)for(let n=0,r=t.length;n<r;n++){const r=(new Yd).fromJSON(t[n]);e[r.uuid]=r}return e}parseSkeletons(t,e){const n={},r={};if(e.traverse(function(t){t.isBone&&(r[t.uuid]=t)}),void 0!==t)for(let i=0,s=t.length;i<s;i++){const e=(new Qh).fromJSON(t[i],r);n[e.uuid]=e}return n}parseGeometries(t,e){const n={};let r;if(void 0!==t){const i=new ym;for(let s=0,o=t.length;s<o;s++){let o;const a=t[s];switch(a.type){case"PlaneGeometry":case"PlaneBufferGeometry":o=new Ip[a.type](a.width,a.height,a.widthSegments,a.heightSegments);break;case"BoxGeometry":case"BoxBufferGeometry":o=new Ip[a.type](a.width,a.height,a.depth,a.widthSegments,a.heightSegments,a.depthSegments);break;case"CircleGeometry":case"CircleBufferGeometry":o=new Ip[a.type](a.radius,a.segments,a.thetaStart,a.thetaLength);break;case"CylinderGeometry":case"CylinderBufferGeometry":o=new Ip[a.type](a.radiusTop,a.radiusBottom,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"ConeGeometry":case"ConeBufferGeometry":o=new Ip[a.type](a.radius,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"SphereGeometry":case"SphereBufferGeometry":o=new Ip[a.type](a.radius,a.widthSegments,a.heightSegments,a.phiStart,a.phiLength,a.thetaStart,a.thetaLength);break;case"DodecahedronGeometry":case"DodecahedronBufferGeometry":case"IcosahedronGeometry":case"IcosahedronBufferGeometry":case"OctahedronGeometry":case"OctahedronBufferGeometry":case"TetrahedronGeometry":case"TetrahedronBufferGeometry":o=new Ip[a.type](a.radius,a.detail);break;case"RingGeometry":case"RingBufferGeometry":o=new Ip[a.type](a.innerRadius,a.outerRadius,a.thetaSegments,a.phiSegments,a.thetaStart,a.thetaLength);break;case"TorusGeometry":case"TorusBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.radialSegments,a.tubularSegments,a.arc);break;case"TorusKnotGeometry":case"TorusKnotBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.tubularSegments,a.radialSegments,a.p,a.q);break;case"TubeGeometry":case"TubeBufferGeometry":o=new Ip[a.type]((new jd[a.path.type]).fromJSON(a.path),a.tubularSegments,a.radius,a.radialSegments,a.closed);break;case"LatheGeometry":case"LatheBufferGeometry":o=new Ip[a.type](a.points,a.segments,a.phiStart,a.phiLength);break;case"PolyhedronGeometry":case"PolyhedronBufferGeometry":o=new Ip[a.type](a.vertices,a.indices,a.radius,a.details);break;case"ShapeGeometry":case"ShapeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}o=new Ip[a.type](r,a.curveSegments);break;case"ExtrudeGeometry":case"ExtrudeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}const t=a.options.extrudePath;void 0!==t&&(a.options.extrudePath=(new jd[t.type]).fromJSON(t)),o=new Ip[a.type](r,a.options);break;case"BufferGeometry":case"InstancedBufferGeometry":o=i.parse(a);break;case"Geometry":console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type "'+a.type+'"');continue}o.uuid=a.uuid,void 0!==a.name&&(o.name=a.name),!0===o.isBufferGeometry&&void 0!==a.userData&&(o.userData=a.userData),n[a.uuid]=o}}return n}parseMaterials(t,e){const n={},r={};if(void 0!==t){const i=new fm;i.setTextures(e);for(let e=0,s=t.length;e<s;e++){const s=t[e];if("MultiMaterial"===s.type){const t=[];for(let e=0;e<s.materials.length;e++){const r=s.materials[e];void 0===n[r.uuid]&&(n[r.uuid]=i.parse(r)),t.push(n[r.uuid])}r[s.uuid]=t}else void 0===n[s.uuid]&&(n[s.uuid]=i.parse(s)),r[s.uuid]=n[s.uuid]}}return r}parseAnimations(t){const e={};if(void 0!==t)for(let n=0;n<t.length;n++){const r=t[n],i=id.parse(r);e[i.uuid]=i}return e}parseImages(t,e){const n=this,r={};let i;function s(t){if("string"==typeof t){const e=t;return function(t){return n.manager.itemStart(t),i.load(t,function(){n.manager.itemEnd(t)},void 0,function(){n.manager.itemError(t),n.manager.itemEnd(t)})}(/^(\/\/)|([a-z]+:(\/\/)?)/i.test(e)?e:n.resourcePath+e)}return t.data?{data:Bi(t.type,t.data),width:t.width,height:t.height}:null}if(void 0!==t&&t.length>0){const n=new ld(e);(i=new fd(n)).setCrossOrigin(this.crossOrigin);for(let e=0,i=t.length;e<i;e++){const n=t[e],i=n.url;if(Array.isArray(i)){r[n.uuid]=[];for(let t=0,e=i.length;t<e;t++){const e=s(i[t]);null!==e&&(e instanceof HTMLImageElement?r[n.uuid].push(e):r[n.uuid].push(new Ms(e.data,e.width,e.height)))}}else{const t=s(n.url);null!==t&&(r[n.uuid]=t)}}}return r}parseTextures(t,e){function n(t,e){return"number"==typeof t?t:(console.warn("THREE.ObjectLoader.parseTexture: Constant should be in numeric form.",t),e[t])}const r={};if(void 0!==t)for(let i=0,s=t.length;i<s;i++){const s=t[i];let o;void 0===s.image&&console.warn('THREE.ObjectLoader: No "image" specified for',s.uuid),void 0===e[s.image]&&console.warn("THREE.ObjectLoader: Undefined image",s.image);const a=e[s.image];Array.isArray(a)?(o=new bs(a),6===a.length&&(o.needsUpdate=!0)):(o=a&&a.data?new Ms(a.data,a.width,a.height):new kn(a),a&&(o.needsUpdate=!0)),o.uuid=s.uuid,void 0!==s.name&&(o.name=s.name),void 0!==s.mapping&&(o.mapping=n(s.mapping,bm)),void 0!==s.offset&&o.offset.fromArray(s.offset),void 0!==s.repeat&&o.repeat.fromArray(s.repeat),void 0!==s.center&&o.center.fromArray(s.center),void 0!==s.rotation&&(o.rotation=s.rotation),void 0!==s.wrap&&(o.wrapS=n(s.wrap[0],wm),o.wrapT=n(s.wrap[1],wm)),void 0!==s.format&&(o.format=s.format),void 0!==s.type&&(o.type=s.type),void 0!==s.encoding&&(o.encoding=s.encoding),void 0!==s.minFilter&&(o.minFilter=n(s.minFilter,Mm)),void 0!==s.magFilter&&(o.magFilter=n(s.magFilter,Mm)),void 0!==s.anisotropy&&(o.anisotropy=s.anisotropy),void 0!==s.flipY&&(o.flipY=s.flipY),void 0!==s.premultiplyAlpha&&(o.premultiplyAlpha=s.premultiplyAlpha),void 0!==s.unpackAlignment&&(o.unpackAlignment=s.unpackAlignment),r[s.uuid]=o}return r}parseObject(t,e,n,r){let i,s,o;function a(t){return void 0===e[t]&&console.warn("THREE.ObjectLoader: Undefined geometry",t),e[t]}function l(t){if(void 0!==t){if(Array.isArray(t)){const e=[];for(let r=0,i=t.length;r<i;r++){const i=t[r];void 0===n[i]&&console.warn("THREE.ObjectLoader: Undefined material",i),e.push(n[i])}return e}return void 0===n[t]&&console.warn("THREE.ObjectLoader: Undefined material",t),n[t]}}switch(t.type){case"Scene":i=new yh,void 0!==t.background&&Number.isInteger(t.background)&&(i.background=new xi(t.background)),void 0!==t.fog&&("Fog"===t.fog.type?i.fog=new vh(t.fog.color,t.fog.near,t.fog.far):"FogExp2"===t.fog.type&&(i.fog=new xh(t.fog.color,t.fog.density)));break;case"PerspectiveCamera":i=new xs(t.fov,t.aspect,t.near,t.far),void 0!==t.focus&&(i.focus=t.focus),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.filmGauge&&(i.filmGauge=t.filmGauge),void 0!==t.filmOffset&&(i.filmOffset=t.filmOffset),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"OrthographicCamera":i=new lm(t.left,t.right,t.top,t.bottom,t.near,t.far),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"AmbientLight":i=new um(t.color,t.intensity);break;case"DirectionalLight":i=new hm(t.color,t.intensity);break;case"PointLight":i=new am(t.color,t.intensity,t.distance,t.decay);break;case"RectAreaLight":i=new pm(t.color,t.intensity,t.width,t.height);break;case"SpotLight":i=new nm(t.color,t.intensity,t.distance,t.angle,t.penumbra,t.decay);break;case"HemisphereLight":i=new Jd(t.color,t.groundColor,t.intensity);break;case"LightProbe":i=(new mm).fromJSON(t);break;case"SkinnedMesh":i=new Xh(s=a(t.geometry),o=l(t.material)),void 0!==t.bindMode&&(i.bindMode=t.bindMode),void 0!==t.bindMatrix&&i.bindMatrix.fromArray(t.bindMatrix),void 0!==t.skeleton&&(i.skeleton=t.skeleton);break;case"Mesh":i=new os(s=a(t.geometry),o=l(t.material));break;case"InstancedMesh":s=a(t.geometry),o=l(t.material);const e=t.count,n=t.instanceMatrix;(i=new nu(s,o,e)).instanceMatrix=new bi(new Float32Array(n.array),16);break;case"LOD":i=new Uh;break;case"Line":i=new cu(a(t.geometry),l(t.material));break;case"LineLoop":i=new du(a(t.geometry),l(t.material));break;case"LineSegments":i=new pu(a(t.geometry),l(t.material));break;case"PointCloud":case"Points":i=new yu(a(t.geometry),l(t.material));break;case"Sprite":i=new Oh(l(t.material));break;case"Group":i=new hh;break;case"Bone":i=new Yh;break;default:i=new Xr}if(i.uuid=t.uuid,void 0!==t.name&&(i.name=t.name),void 0!==t.matrix?(i.matrix.fromArray(t.matrix),void 0!==t.matrixAutoUpdate&&(i.matrixAutoUpdate=t.matrixAutoUpdate),i.matrixAutoUpdate&&i.matrix.decompose(i.position,i.quaternion,i.scale)):(void 0!==t.position&&i.position.fromArray(t.position),void 0!==t.rotation&&i.rotation.fromArray(t.rotation),void 0!==t.quaternion&&i.quaternion.fromArray(t.quaternion),void 0!==t.scale&&i.scale.fromArray(t.scale)),void 0!==t.castShadow&&(i.castShadow=t.castShadow),void 0!==t.receiveShadow&&(i.receiveShadow=t.receiveShadow),t.shadow&&(void 0!==t.shadow.bias&&(i.shadow.bias=t.shadow.bias),void 0!==t.shadow.normalBias&&(i.shadow.normalBias=t.shadow.normalBias),void 0!==t.shadow.radius&&(i.shadow.radius=t.shadow.radius),void 0!==t.shadow.mapSize&&i.shadow.mapSize.fromArray(t.shadow.mapSize),void 0!==t.shadow.camera&&(i.shadow.camera=this.parseObject(t.shadow.camera))),void 0!==t.visible&&(i.visible=t.visible),void 0!==t.frustumCulled&&(i.frustumCulled=t.frustumCulled),void 0!==t.renderOrder&&(i.renderOrder=t.renderOrder),void 0!==t.userData&&(i.userData=t.userData),void 0!==t.layers&&(i.layers.mask=t.layers),void 0!==t.children){const s=t.children;for(let t=0;t<s.length;t++)i.add(this.parseObject(s[t],e,n,r))}if(void 0!==t.animations){const e=t.animations;for(let t=0;t<e.length;t++){const n=e[t];i.animations.push(r[n])}}if("LOD"===t.type){void 0!==t.autoUpdate&&(i.autoUpdate=t.autoUpdate);const e=t.levels;for(let t=0;t<e.length;t++){const n=e[t],r=i.getObjectByProperty("uuid",n.object);void 0!==r&&i.addLevel(r,n.distance)}}return i}bindSkeletons(t,e){0!==Object.keys(e).length&&t.traverse(function(t){if(!0===t.isSkinnedMesh&&void 0!==t.skeleton){const n=e[t.skeleton];void 0===n?console.warn("THREE.ObjectLoader: No skeleton found with UUID:",t.skeleton):t.bind(n,t.bindMatrix)}})}setTexturePath(t){return console.warn("THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath()."),this.setResourcePath(t)}}exports.ObjectLoader=_m;const bm={UVMapping:et,CubeReflectionMapping:nt,CubeRefractionMapping:rt,EquirectangularReflectionMapping:it,EquirectangularRefractionMapping:st,CubeUVReflectionMapping:ot,CubeUVRefractionMapping:at},wm={RepeatWrapping:lt,ClampToEdgeWrapping:ct,MirroredRepeatWrapping:ht},Mm={NearestFilter:ut,NearestMipmapNearestFilter:pt,NearestMipmapLinearFilter:mt,LinearFilter:gt,LinearMipmapNearestFilter:xt,LinearMipmapLinearFilter:yt};function Sm(t){"undefined"==typeof createImageBitmap&&console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported."),"undefined"==typeof fetch&&console.warn("THREE.ImageBitmapLoader: fetch() not supported."),hd.call(this,t),this.options={premultiplyAlpha:"none"}}Sm.prototype=Object.assign(Object.create(hd.prototype),{constructor:Sm,isImageBitmapLoader:!0,setOptions:function(t){return this.options=t,this},load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o={};o.credentials="anonymous"===this.crossOrigin?"same-origin":"include",o.headers=this.requestHeader,fetch(t,o).then(function(t){return t.blob()}).then(function(t){return createImageBitmap(t,Object.assign(i.options,{colorSpaceConversion:"none"}))}).then(function(n){ad.add(t,n),e&&e(n),i.manager.itemEnd(t)}).catch(function(e){r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}),i.manager.itemStart(t)}});class Tm{constructor(){this.type="ShapePath",this.color=new xi,this.subPaths=[],this.currentPath=null}moveTo(t,e){return this.currentPath=new Xd,this.subPaths.push(this.currentPath),this.currentPath.moveTo(t,e),this}lineTo(t,e){return this.currentPath.lineTo(t,e),this}quadraticCurveTo(t,e,n,r){return this.currentPath.quadraticCurveTo(t,e,n,r),this}bezierCurveTo(t,e,n,r,i,s){return this.currentPath.bezierCurveTo(t,e,n,r,i,s),this}splineThru(t){return this.currentPath.splineThru(t),this}toShapes(t,e){function n(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n],i=new Yd;i.curves=r.curves,e.push(i)}return e}function r(t,e){const n=e.length;let r=!1;for(let i=n-1,s=0;s<n;i=s++){let n=e[i],o=e[s],a=o.x-n.x,l=o.y-n.y;if(Math.abs(l)>Number.EPSILON){if(l<0&&(n=e[s],a=-a,o=e[i],l=-l),t.y<n.y||t.y>o.y)continue;if(t.y===n.y){if(t.x===n.x)return!0}else{const e=l*(t.x-n.x)-a*(t.y-n.y);if(0===e)return!0;if(e<0)continue;r=!r}}else{if(t.y!==n.y)continue;if(o.x<=t.x&&t.x<=n.x||n.x<=t.x&&t.x<=o.x)return!0}}return r}const i=dp.isClockWise,s=this.subPaths;if(0===s.length)return[];if(!0===e)return n(s);let o,a,l;const c=[];if(1===s.length)return a=s[0],(l=new Yd).curves=a.curves,c.push(l),c;let h=!i(s[0].getPoints());h=t?!h:h;const u=[],p=[];let d,m,f=[],g=0;p[g]=void 0,f[g]=[];for(let x=0,v=s.length;x<v;x++)o=i(d=(a=s[x]).getPoints()),(o=t?!o:o)?(!h&&p[g]&&g++,p[g]={s:new Yd,p:d},p[g].s.curves=a.curves,h&&g++,f[g]=[]):f[g].push({h:a,p:d[0]});if(!p[0])return n(s);if(p.length>1){let t=!1;const e=[];for(let n=0,r=p.length;n<r;n++)u[n]=[];for(let n=0,i=p.length;n<i;n++){const i=f[n];for(let s=0;s<i.length;s++){const o=i[s];let a=!0;for(let i=0;i<p.length;i++)r(o.p,p[i].p)&&(n!==i&&e.push({froms:n,tos:i,hole:s}),a?(a=!1,u[i].push(o)):t=!0);a&&u[n].push(o)}}e.length>0&&(t||(f=u))}for(let x=0,v=p.length;x<v;x++){l=p[x].s,c.push(l);for(let t=0,e=(m=f[x]).length;t<e;t++)l.holes.push(m[t].h)}return c}}exports.ShapePath=Tm;class Em{constructor(t){this.type="Font",this.data=t}generateShapes(t,e=100){const n=[],r=Am(t,e,this.data);for(let i=0,s=r.length;i<s;i++)Array.prototype.push.apply(n,r[i].toShapes());return n}}function Am(t,e,n){const r=Array.from(t),i=e/n.resolution,s=(n.boundingBox.yMax-n.boundingBox.yMin+n.underlineThickness)*i,o=[];let a=0,l=0;for(let c=0;c<r.length;c++){const t=r[c];if("\n"===t)a=0,l-=s;else{const e=Lm(t,i,a,l,n);a+=e.offsetX,o.push(e.path)}}return o}function Lm(t,e,n,r,i){const s=i.glyphs[t]||i.glyphs["?"];if(!s)return void console.error('THREE.Font: character "'+t+'" does not exists in font family '+i.familyName+".");const o=new Tm;let a,l,c,h,u,p,d,m;if(s.o){const t=s._cachedOutline||(s._cachedOutline=s.o.split(" "));for(let i=0,s=t.length;i<s;){switch(t[i++]){case"m":a=t[i++]*e+n,l=t[i++]*e+r,o.moveTo(a,l);break;case"l":a=t[i++]*e+n,l=t[i++]*e+r,o.lineTo(a,l);break;case"q":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,o.quadraticCurveTo(u,p,c,h);break;case"b":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,d=t[i++]*e+n,m=t[i++]*e+r,o.bezierCurveTo(u,p,d,m,c,h)}}}return{offsetX:s.ha*e,path:o}}exports.Font=Em,Em.prototype.isFont=!0;class Rm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(t){let n;try{n=JSON.parse(t)}catch(s){console.warn("THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead."),n=JSON.parse(t.substring(65,t.length-2))}const r=i.parse(n);e&&e(r)},n,r)}parse(t){return new Em(t)}}let Cm;exports.FontLoader=Rm;const Pm={getContext:function(){return void 0===Cm&&(Cm=new(window.AudioContext||window.webkitAudioContext)),Cm},setContext:function(t){Cm=t}};exports.AudioContext=Pm;class Dm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setResponseType("arraybuffer"),s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{const o=n.slice(0);Pm.getContext().decodeAudioData(o,function(t){e(t)})}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}}exports.AudioLoader=Dm;class Im extends mm{constructor(t,e,n=1){super(void 0,n);const r=(new xi).set(t),i=(new xi).set(e),s=new Yn(r.r,r.g,r.b),o=new Yn(i.r,i.g,i.b),a=Math.sqrt(Math.PI),l=a*Math.sqrt(.75);this.sh.coefficients[0].copy(s).add(o).multiplyScalar(a),this.sh.coefficients[1].copy(s).sub(o).multiplyScalar(l)}}exports.HemisphereLightProbe=Im,Im.prototype.isHemisphereLightProbe=!0;class Bm extends mm{constructor(t,e=1){super(void 0,e);const n=(new xi).set(t);this.sh.coefficients[0].set(n.r,n.g,n.b).multiplyScalar(2*Math.sqrt(Math.PI))}}exports.AmbientLightProbe=Bm,Bm.prototype.isAmbientLightProbe=!0;const Nm=new wr,Fm=new wr;class Om{constructor(){this.type="StereoCamera",this.aspect=1,this.eyeSep=.064,this.cameraL=new xs,this.cameraL.layers.enable(1),this.cameraL.matrixAutoUpdate=!1,this.cameraR=new xs,this.cameraR.layers.enable(2),this.cameraR.matrixAutoUpdate=!1,this._cache={focus:null,fov:null,aspect:null,near:null,far:null,zoom:null,eyeSep:null}}update(t){const e=this._cache;if(e.focus!==t.focus||e.fov!==t.fov||e.aspect!==t.aspect*this.aspect||e.near!==t.near||e.far!==t.far||e.zoom!==t.zoom||e.eyeSep!==this.eyeSep){e.focus=t.focus,e.fov=t.fov,e.aspect=t.aspect*this.aspect,e.near=t.near,e.far=t.far,e.zoom=t.zoom,e.eyeSep=this.eyeSep;const n=t.projectionMatrix.clone(),r=e.eyeSep/2,i=r*e.near/e.focus,s=e.near*Math.tan(Fn.DEG2RAD*e.fov*.5)/e.zoom;let o,a;Fm.elements[12]=-r,Nm.elements[12]=r,o=-s*e.aspect+i,a=s*e.aspect+i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraL.projectionMatrix.copy(n),o=-s*e.aspect-i,a=s*e.aspect-i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraR.projectionMatrix.copy(n)}this.cameraL.matrixWorld.copy(t.matrixWorld).multiply(Fm),this.cameraR.matrixWorld.copy(t.matrixWorld).multiply(Nm)}}exports.StereoCamera=Om;class zm{constructor(t){this.autoStart=void 0===t||t,this.startTime=0,this.oldTime=0,this.elapsedTime=0,this.running=!1}start(){this.startTime=Gm(),this.oldTime=this.startTime,this.elapsedTime=0,this.running=!0}stop(){this.getElapsedTime(),this.running=!1,this.autoStart=!1}getElapsedTime(){return this.getDelta(),this.elapsedTime}getDelta(){let t=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){const e=Gm();t=(e-this.oldTime)/1e3,this.oldTime=e,this.elapsedTime+=t}return t}}function Gm(){return("undefined"==typeof performance?Date:performance).now()}exports.Clock=zm;const Hm=new Yn,Um=new Xn,km=new Yn,Vm=new Yn;class Wm extends Xr{constructor(){super(),this.type="AudioListener",this.context=Pm.getContext(),this.gain=this.context.createGain(),this.gain.connect(this.context.destination),this.filter=null,this.timeDelta=0,this._clock=new zm}getInput(){return this.gain}removeFilter(){return null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null),this}getFilter(){return this.filter}setFilter(t){return null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):this.gain.disconnect(this.context.destination),this.filter=t,this.gain.connect(this.filter),this.filter.connect(this.context.destination),this}getMasterVolume(){return this.gain.gain.value}setMasterVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}updateMatrixWorld(t){super.updateMatrixWorld(t);const e=this.context.listener,n=this.up;if(this.timeDelta=this._clock.getDelta(),this.matrixWorld.decompose(Hm,Um,km),Vm.set(0,0,-1).applyQuaternion(Um),e.positionX){const t=this.context.currentTime+this.timeDelta;e.positionX.linearRampToValueAtTime(Hm.x,t),e.positionY.linearRampToValueAtTime(Hm.y,t),e.positionZ.linearRampToValueAtTime(Hm.z,t),e.forwardX.linearRampToValueAtTime(Vm.x,t),e.forwardY.linearRampToValueAtTime(Vm.y,t),e.forwardZ.linearRampToValueAtTime(Vm.z,t),e.upX.linearRampToValueAtTime(n.x,t),e.upY.linearRampToValueAtTime(n.y,t),e.upZ.linearRampToValueAtTime(n.z,t)}else e.setPosition(Hm.x,Hm.y,Hm.z),e.setOrientation(Vm.x,Vm.y,Vm.z,n.x,n.y,n.z)}}exports.AudioListener=Wm;class jm extends Xr{constructor(t){super(),this.type="Audio",this.listener=t,this.context=t.context,this.gain=this.context.createGain(),this.gain.connect(t.getInput()),this.autoplay=!1,this.buffer=null,this.detune=0,this.loop=!1,this.loopStart=0,this.loopEnd=0,this.offset=0,this.duration=void 0,this.playbackRate=1,this.isPlaying=!1,this.hasPlaybackControl=!0,this.source=null,this.sourceType="empty",this._startedAt=0,this._progress=0,this._connected=!1,this.filters=[]}getOutput(){return this.gain}setNodeSource(t){return this.hasPlaybackControl=!1,this.sourceType="audioNode",this.source=t,this.connect(),this}setMediaElementSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaNode",this.source=this.context.createMediaElementSource(t),this.connect(),this}setMediaStreamSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaStreamNode",this.source=this.context.createMediaStreamSource(t),this.connect(),this}setBuffer(t){return this.buffer=t,this.sourceType="buffer",this.autoplay&&this.play(),this}play(t=0){if(!0===this.isPlaying)return void console.warn("THREE.Audio: Audio is already playing.");if(!1===this.hasPlaybackControl)return void console.warn("THREE.Audio: this Audio has no playback control.");this._startedAt=this.context.currentTime+t;const e=this.context.createBufferSource();return e.buffer=this.buffer,e.loop=this.loop,e.loopStart=this.loopStart,e.loopEnd=this.loopEnd,e.onended=this.onEnded.bind(this),e.start(this._startedAt,this._progress+this.offset,this.duration),this.isPlaying=!0,this.source=e,this.setDetune(this.detune),this.setPlaybackRate(this.playbackRate),this.connect()}pause(){if(!1!==this.hasPlaybackControl)return!0===this.isPlaying&&(this._progress+=Math.max(this.context.currentTime-this._startedAt,0)*this.playbackRate,!0===this.loop&&(this._progress=this._progress%(this.duration||this.buffer.duration)),this.source.stop(),this.source.onended=null,this.isPlaying=!1),this;console.warn("THREE.Audio: this Audio has no playback control.")}stop(){if(!1!==this.hasPlaybackControl)return this._progress=0,this.source.stop(),this.source.onended=null,this.isPlaying=!1,this;console.warn("THREE.Audio: this Audio has no playback control.")}connect(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].connect(this.filters[t]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());return this._connected=!0,this}disconnect(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].disconnect(this.filters[t]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this._connected=!1,this}getFilters(){return this.filters}setFilters(t){return t||(t=[]),!0===this._connected?(this.disconnect(),this.filters=t.slice(),this.connect()):this.filters=t.slice(),this}setDetune(t){if(this.detune=t,void 0!==this.source.detune)return!0===this.isPlaying&&this.source.detune.setTargetAtTime(this.detune,this.context.currentTime,.01),this}getDetune(){return this.detune}getFilter(){return this.getFilters()[0]}setFilter(t){return this.setFilters(t?[t]:[])}setPlaybackRate(t){if(!1!==this.hasPlaybackControl)return this.playbackRate=t,!0===this.isPlaying&&this.source.playbackRate.setTargetAtTime(this.playbackRate,this.context.currentTime,.01),this;console.warn("THREE.Audio: this Audio has no playback control.")}getPlaybackRate(){return this.playbackRate}onEnded(){this.isPlaying=!1}getLoop(){return!1===this.hasPlaybackControl?(console.warn("THREE.Audio: this Audio has no playback control."),!1):this.loop}setLoop(t){if(!1!==this.hasPlaybackControl)return this.loop=t,!0===this.isPlaying&&(this.source.loop=this.loop),this;console.warn("THREE.Audio: this Audio has no playback control.")}setLoopStart(t){return this.loopStart=t,this}setLoopEnd(t){return this.loopEnd=t,this}getVolume(){return this.gain.gain.value}setVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}}exports.Audio=jm;const qm=new Yn,Xm=new Xn,Ym=new Yn,Zm=new Yn;class Jm extends jm{constructor(t){super(t),this.panner=this.context.createPanner(),this.panner.panningModel="HRTF",this.panner.connect(this.gain)}getOutput(){return this.panner}getRefDistance(){return this.panner.refDistance}setRefDistance(t){return this.panner.refDistance=t,this}getRolloffFactor(){return this.panner.rolloffFactor}setRolloffFactor(t){return this.panner.rolloffFactor=t,this}getDistanceModel(){return this.panner.distanceModel}setDistanceModel(t){return this.panner.distanceModel=t,this}getMaxDistance(){return this.panner.maxDistance}setMaxDistance(t){return this.panner.maxDistance=t,this}setDirectionalCone(t,e,n){return this.panner.coneInnerAngle=t,this.panner.coneOuterAngle=e,this.panner.coneOuterGain=n,this}updateMatrixWorld(t){if(super.updateMatrixWorld(t),!0===this.hasPlaybackControl&&!1===this.isPlaying)return;this.matrixWorld.decompose(qm,Xm,Ym),Zm.set(0,0,1).applyQuaternion(Xm);const e=this.panner;if(e.positionX){const t=this.context.currentTime+this.listener.timeDelta;e.positionX.linearRampToValueAtTime(qm.x,t),e.positionY.linearRampToValueAtTime(qm.y,t),e.positionZ.linearRampToValueAtTime(qm.z,t),e.orientationX.linearRampToValueAtTime(Zm.x,t),e.orientationY.linearRampToValueAtTime(Zm.y,t),e.orientationZ.linearRampToValueAtTime(Zm.z,t)}else e.setPosition(qm.x,qm.y,qm.z),e.setOrientation(Zm.x,Zm.y,Zm.z)}}exports.PositionalAudio=Jm;class Qm{constructor(t,e=2048){this.analyser=t.context.createAnalyser(),this.analyser.fftSize=e,this.data=new Uint8Array(this.analyser.frequencyBinCount),t.getOutput().connect(this.analyser)}getFrequencyData(){return this.analyser.getByteFrequencyData(this.data),this.data}getAverageFrequency(){let t=0;const e=this.getFrequencyData();for(let n=0;n<e.length;n++)t+=e[n];return t/e.length}}exports.AudioAnalyser=Qm;class Km{constructor(t,e,n){let r,i,s;switch(this.binding=t,this.valueSize=n,e){case"quaternion":r=this._slerp,i=this._slerpAdditive,s=this._setAdditiveIdentityQuaternion,this.buffer=new Float64Array(6*n),this._workIndex=5;break;case"string":case"bool":r=this._select,i=this._select,s=this._setAdditiveIdentityOther,this.buffer=new Array(5*n);break;default:r=this._lerp,i=this._lerpAdditive,s=this._setAdditiveIdentityNumeric,this.buffer=new Float64Array(5*n)}this._mixBufferRegion=r,this._mixBufferRegionAdditive=i,this._setIdentity=s,this._origIndex=3,this._addIndex=4,this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,this.useCount=0,this.referenceCount=0}accumulate(t,e){const n=this.buffer,r=this.valueSize,i=t*r+r;let s=this.cumulativeWeight;if(0===s){for(let t=0;t!==r;++t)n[i+t]=n[t];s=e}else{const t=e/(s+=e);this._mixBufferRegion(n,i,0,t,r)}this.cumulativeWeight=s}accumulateAdditive(t){const e=this.buffer,n=this.valueSize,r=n*this._addIndex;0===this.cumulativeWeightAdditive&&this._setIdentity(),this._mixBufferRegionAdditive(e,r,0,t,n),this.cumulativeWeightAdditive+=t}apply(t){const e=this.valueSize,n=this.buffer,r=t*e+e,i=this.cumulativeWeight,s=this.cumulativeWeightAdditive,o=this.binding;if(this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,i<1){const t=e*this._origIndex;this._mixBufferRegion(n,r,t,1-i,e)}s>0&&this._mixBufferRegionAdditive(n,r,this._addIndex*e,1,e);for(let a=e,l=e+e;a!==l;++a)if(n[a]!==n[a+e]){o.setValue(n,r);break}}saveOriginalState(){const t=this.binding,e=this.buffer,n=this.valueSize,r=n*this._origIndex;t.getValue(e,r);for(let i=n,s=r;i!==s;++i)e[i]=e[r+i%n];this._setIdentity(),this.cumulativeWeight=0,this.cumulativeWeightAdditive=0}restoreOriginalState(){const t=3*this.valueSize;this.binding.setValue(this.buffer,t)}_setAdditiveIdentityNumeric(){const t=this._addIndex*this.valueSize,e=t+this.valueSize;for(let n=t;n<e;n++)this.buffer[n]=0}_setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric(),this.buffer[this._addIndex*this.valueSize+3]=1}_setAdditiveIdentityOther(){const t=this._origIndex*this.valueSize,e=this._addIndex*this.valueSize;for(let n=0;n<this.valueSize;n++)this.buffer[e+n]=this.buffer[t+n]}_select(t,e,n,r,i){if(r>=.5)for(let s=0;s!==i;++s)t[e+s]=t[n+s]}_slerp(t,e,n,r){Xn.slerpFlat(t,e,t,e,t,n,r)}_slerpAdditive(t,e,n,r,i){const s=this._workIndex*i;Xn.multiplyQuaternionsFlat(t,s,t,e,t,n),Xn.slerpFlat(t,e,t,e,t,s,r)}_lerp(t,e,n,r,i){const s=1-r;for(let o=0;o!==i;++o){const i=e+o;t[i]=t[i]*s+t[n+o]*r}}_lerpAdditive(t,e,n,r,i){for(let s=0;s!==i;++s){const i=e+s;t[i]=t[i]+t[n+s]*r}}}exports.PropertyMixer=Km;const $m="\\[\\]\\.:\\/",tf=new RegExp("[\\[\\]\\.:\\/]","g"),ef="[^\\[\\]\\.:\\/]",nf="[^"+"\\[\\]\\.:\\/".replace("\\.","")+"]",rf=/((?:WC+[\/:])*)/.source.replace("WC",ef),sf=/(WCOD+)?/.source.replace("WCOD",nf),of=/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC",ef),af=/\.(WC+)(?:\[(.+)\])?/.source.replace("WC",ef),lf=new RegExp("^"+rf+sf+of+af+"$"),cf=["material","materials","bones"];function hf(t,e,n){const r=n||uf.parseTrackName(e);this._targetGroup=t,this._bindings=t.subscribe_(e,r)}function uf(t,e,n){this.path=e,this.parsedPath=n||uf.parseTrackName(e),this.node=uf.findNode(t,this.parsedPath.nodeName)||t,this.rootNode=t}Object.assign(hf.prototype,{getValue:function(t,e){this.bind();const n=this._targetGroup.nCachedObjects_,r=this._bindings[n];void 0!==r&&r.getValue(t,e)},setValue:function(t,e){const n=this._bindings;for(let r=this._targetGroup.nCachedObjects_,i=n.length;r!==i;++r)n[r].setValue(t,e)},bind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].bind()},unbind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].unbind()}}),Object.assign(uf,{Composite:hf,create:function(t,e,n){return t&&t.isAnimationObjectGroup?new uf.Composite(t,e,n):new uf(t,e,n)},sanitizeNodeName:function(t){return t.replace(/\s/g,"_").replace(tf,"")},parseTrackName:function(t){const e=lf.exec(t);if(!e)throw new Error("PropertyBinding: Cannot parse trackName: "+t);const n={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},r=n.nodeName&&n.nodeName.lastIndexOf(".");if(void 0!==r&&-1!==r){const t=n.nodeName.substring(r+1);-1!==cf.indexOf(t)&&(n.nodeName=n.nodeName.substring(0,r),n.objectName=t)}if(null===n.propertyName||0===n.propertyName.length)throw new Error("PropertyBinding: can not parse propertyName from trackName: "+t);return n},findNode:function(t,e){if(!e||""===e||"."===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){const n=t.skeleton.getBoneByName(e);if(void 0!==n)return n}if(t.children){const n=function(t){for(let r=0;r<t.length;r++){const i=t[r];if(i.name===e||i.uuid===e)return i;const s=n(i.children);if(s)return s}return null},r=n(t.children);if(r)return r}return null}}),Object.assign(uf.prototype,{_getValue_unavailable:function(){},_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(t,e){t[e]=this.node[this.propertyName]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)t[e++]=n[r]},function(t,e){t[e]=this.resolvedProperty[this.propertyIndex]},function(t,e){this.resolvedProperty.toArray(t,e)}],SetterByBindingTypeAndVersioning:[[function(t,e){this.targetObject[this.propertyName]=t[e]},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.needsUpdate=!0},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty[this.propertyIndex]=t[e]},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty.fromArray(t,e)},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}]],getValue:function(t,e){this.bind(),this.getValue(t,e)},setValue:function(t,e){this.bind(),this.setValue(t,e)},bind:function(){let t=this.node;const e=this.parsedPath,n=e.objectName,r=e.propertyName;let i=e.propertyIndex;if(t||(t=uf.findNode(this.rootNode,e.nodeName)||this.rootNode,this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.error("THREE.PropertyBinding: Trying to update node for track: "+this.path+" but it wasn't found.");if(n){let r=e.objectIndex;switch(n){case"materials":if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.materials)return void console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);t=t.material.materials;break;case"bones":if(!t.skeleton)return void console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);t=t.skeleton.bones;for(let e=0;e<t.length;e++)if(t[e].name===r){r=e;break}break;default:if(void 0===t[n])return void console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",this);t=t[n]}if(void 0!==r){if(void 0===t[r])return void console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,t);t=t[r]}}const s=t[r];if(void 0===s){const n=e.nodeName;return void console.error("THREE.PropertyBinding: Trying to update property for track: "+n+"."+r+" but it wasn't found.",t)}let o=this.Versioning.None;this.targetObject=t,void 0!==t.needsUpdate?o=this.Versioning.NeedsUpdate:void 0!==t.matrixWorldNeedsUpdate&&(o=this.Versioning.MatrixWorldNeedsUpdate);let a=this.BindingType.Direct;if(void 0!==i){if("morphTargetInfluences"===r){if(!t.geometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);if(!t.geometry.isBufferGeometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.",this);if(!t.geometry.morphAttributes)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);void 0!==t.morphTargetDictionary[i]&&(i=t.morphTargetDictionary[i])}a=this.BindingType.ArrayElement,this.resolvedProperty=s,this.propertyIndex=i}else void 0!==s.fromArray&&void 0!==s.toArray?(a=this.BindingType.HasFromToArray,this.resolvedProperty=s):Array.isArray(s)?(a=this.BindingType.EntireArray,this.resolvedProperty=s):this.propertyName=r;this.getValue=this.GetterByBindingType[a],this.setValue=this.SetterByBindingTypeAndVersioning[a][o]},unbind:function(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}),Object.assign(uf.prototype,{_getValue_unbound:uf.prototype.getValue,_setValue_unbound:uf.prototype.setValue});class pf{constructor(){this.uuid=Fn.generateUUID(),this._objects=Array.prototype.slice.call(arguments),this.nCachedObjects_=0;const t={};this._indicesByUUID=t;for(let n=0,r=arguments.length;n!==r;++n)t[arguments[n].uuid]=n;this._paths=[],this._parsedPaths=[],this._bindings=[],this._bindingsIndicesByPath={};const e=this;this.stats={objects:{get total(){return e._objects.length},get inUse(){return this.total-e.nCachedObjects_}},get bindingsPerObject(){return e._bindings.length}}}add(){const t=this._objects,e=this._indicesByUUID,n=this._paths,r=this._parsedPaths,i=this._bindings,s=i.length;let o=void 0,a=t.length,l=this.nCachedObjects_;for(let c=0,h=arguments.length;c!==h;++c){const h=arguments[c],u=h.uuid;let p=e[u];if(void 0===p){p=a++,e[u]=p,t.push(h);for(let t=0,e=s;t!==e;++t)i[t].push(new uf(h,n[t],r[t]))}else if(p<l){o=t[p];const a=--l,c=t[a];e[c.uuid]=p,t[p]=c,e[u]=a,t[a]=h;for(let t=0,e=s;t!==e;++t){const e=i[t],s=e[a];let o=e[p];e[p]=s,void 0===o&&(o=new uf(h,n[t],r[t])),e[a]=o}}else t[p]!==o&&console.error("THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.")}this.nCachedObjects_=l}remove(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_;for(let s=0,o=arguments.length;s!==o;++s){const o=arguments[s],a=o.uuid,l=e[a];if(void 0!==l&&l>=i){const s=i++,c=t[s];e[c.uuid]=l,t[l]=c,e[a]=s,t[s]=o;for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[s],i=e[l];e[l]=r,e[s]=i}}}this.nCachedObjects_=i}uncache(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_,s=t.length;for(let o=0,a=arguments.length;o!==a;++o){const a=arguments[o].uuid,l=e[a];if(void 0!==l)if(delete e[a],l<i){const o=--i,a=t[o],c=--s,h=t[c];e[a.uuid]=l,t[l]=a,e[h.uuid]=o,t[o]=h,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[o],i=e[c];e[l]=r,e[o]=i,e.pop()}}else{const i=--s,o=t[i];i>0&&(e[o.uuid]=l),t[l]=o,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t];e[l]=e[i],e.pop()}}}this.nCachedObjects_=i}subscribe_(t,e){const n=this._bindingsIndicesByPath;let r=n[t];const i=this._bindings;if(void 0!==r)return i[r];const s=this._paths,o=this._parsedPaths,a=this._objects,l=a.length,c=this.nCachedObjects_,h=new Array(l);r=i.length,n[t]=r,s.push(t),o.push(e),i.push(h);for(let u=c,p=a.length;u!==p;++u){const n=a[u];h[u]=new uf(n,t,e)}return h}unsubscribe_(t){const e=this._bindingsIndicesByPath,n=e[t];if(void 0!==n){const r=this._paths,i=this._parsedPaths,s=this._bindings,o=s.length-1,a=s[o];e[t[o]]=n,s[n]=a,s.pop(),i[n]=i[o],i.pop(),r[n]=r[o],r.pop()}}}exports.AnimationObjectGroup=pf,pf.prototype.isAnimationObjectGroup=!0;class df{constructor(t,e,n=null,r=e.blendMode){this._mixer=t,this._clip=e,this._localRoot=n,this.blendMode=r;const i=e.tracks,s=i.length,o=new Array(s),a={endingStart:Ge,endingEnd:Ge};for(let l=0;l!==s;++l){const t=i[l].createInterpolant(null);o[l]=t,t.settings=a}this._interpolantSettings=a,this._interpolants=o,this._propertyBindings=new Array(s),this._cacheIndex=null,this._byClipCacheIndex=null,this._timeScaleInterpolant=null,this._weightInterpolant=null,this.loop=Be,this._loopCount=-1,this._startTime=null,this.time=0,this.timeScale=1,this._effectiveTimeScale=1,this.weight=1,this._effectiveWeight=1,this.repetitions=1/0,this.paused=!1,this.enabled=!0,this.clampWhenFinished=!1,this.zeroSlopeAtStart=!0,this.zeroSlopeAtEnd=!0}play(){return this._mixer._activateAction(this),this}stop(){return this._mixer._deactivateAction(this),this.reset()}reset(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()}isRunning(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)}isScheduled(){return this._mixer._isActiveAction(this)}startAt(t){return this._startTime=t,this}setLoop(t,e){return this.loop=t,this.repetitions=e,this}setEffectiveWeight(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()}getEffectiveWeight(){return this._effectiveWeight}fadeIn(t){return this._scheduleFading(t,0,1)}fadeOut(t){return this._scheduleFading(t,1,0)}crossFadeFrom(t,e,n){if(t.fadeOut(e),this.fadeIn(e),n){const n=this._clip.duration,r=t._clip.duration,i=r/n,s=n/r;t.warp(1,i,e),this.warp(s,1,e)}return this}crossFadeTo(t,e,n){return t.crossFadeFrom(this,e,n)}stopFading(){const t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}setEffectiveTimeScale(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()}getEffectiveTimeScale(){return this._effectiveTimeScale}setDuration(t){return this.timeScale=this._clip.duration/t,this.stopWarping()}syncWith(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()}halt(t){return this.warp(this._effectiveTimeScale,0,t)}warp(t,e,n){const r=this._mixer,i=r.time,s=this.timeScale;let o=this._timeScaleInterpolant;null===o&&(o=r._lendControlInterpolant(),this._timeScaleInterpolant=o);const a=o.parameterPositions,l=o.sampleValues;return a[0]=i,a[1]=i+n,l[0]=t/s,l[1]=e/s,this}stopWarping(){const t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}getMixer(){return this._mixer}getClip(){return this._clip}getRoot(){return this._localRoot||this._mixer._root}_update(t,e,n,r){if(!this.enabled)return void this._updateWeight(t);const i=this._startTime;if(null!==i){const r=(t-i)*n;if(r<0||0===n)return;this._startTime=null,e=n*r}e*=this._updateTimeScale(t);const s=this._updateTime(e),o=this._updateWeight(t);if(o>0){const t=this._interpolants,e=this._propertyBindings;switch(this.blendMode){case Ve:for(let n=0,r=t.length;n!==r;++n)t[n].evaluate(s),e[n].accumulateAdditive(o);break;case ke:default:for(let n=0,i=t.length;n!==i;++n)t[n].evaluate(s),e[n].accumulate(r,o)}}}_updateWeight(t){let e=0;if(this.enabled){e=this.weight;const n=this._weightInterpolant;if(null!==n){const r=n.evaluate(t)[0];e*=r,t>n.parameterPositions[1]&&(this.stopFading(),0===r&&(this.enabled=!1))}}return this._effectiveWeight=e,e}_updateTimeScale(t){let e=0;if(!this.paused){e=this.timeScale;const n=this._timeScaleInterpolant;if(null!==n){e*=n.evaluate(t)[0],t>n.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e}_updateTime(t){const e=this._clip.duration,n=this.loop;let r=this.time+t,i=this._loopCount;const s=n===Ne;if(0===t)return-1===i?r:s&&1==(1&i)?e-r:r;if(n===Ie){-1===i&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(r>=e)r=e;else{if(!(r<0)){this.time=r;break t}r=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t<0?-1:1})}}else{if(-1===i&&(t>=0?(i=0,this._setEndings(!0,0===this.repetitions,s)):this._setEndings(0===this.repetitions,!0,s)),r>=e||r<0){const n=Math.floor(r/e);r-=e*n,i+=Math.abs(n);const o=this.repetitions-i;if(o<=0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,r=t>0?e:0,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t>0?1:-1});else{if(1===o){const e=t<0;this._setEndings(e,!e,s)}else this._setEndings(!1,!1,s);this._loopCount=i,this.time=r,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:n})}}else this.time=r;if(s&&1==(1&i))return e-r}return r}_setEndings(t,e,n){const r=this._interpolantSettings;n?(r.endingStart=He,r.endingEnd=He):(r.endingStart=t?this.zeroSlopeAtStart?He:Ge:Ue,r.endingEnd=e?this.zeroSlopeAtEnd?He:Ge:Ue)}_scheduleFading(t,e,n){const r=this._mixer,i=r.time;let s=this._weightInterpolant;null===s&&(s=r._lendControlInterpolant(),this._weightInterpolant=s);const o=s.parameterPositions,a=s.sampleValues;return o[0]=i,a[0]=e,o[1]=i+t,a[1]=n,this}}class mf extends In{constructor(t){super(),this._root=t,this._initMemoryManager(),this._accuIndex=0,this.time=0,this.timeScale=1}_bindAction(t,e){const n=t._localRoot||this._root,r=t._clip.tracks,i=r.length,s=t._propertyBindings,o=t._interpolants,a=n.uuid,l=this._bindingsByRootAndName;let c=l[a];void 0===c&&(c={},l[a]=c);for(let h=0;h!==i;++h){const t=r[h],i=t.name;let l=c[i];if(void 0!==l)s[h]=l;else{if(void 0!==(l=s[h])){null===l._cacheIndex&&(++l.referenceCount,this._addInactiveBinding(l,a,i));continue}const r=e&&e._propertyBindings[h].binding.parsedPath;++(l=new Km(uf.create(n,i,r),t.ValueTypeName,t.getValueSize())).referenceCount,this._addInactiveBinding(l,a,i),s[h]=l}o[h].resultBuffer=l.buffer}}_activateAction(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){const e=(t._localRoot||this._root).uuid,n=t._clip.uuid,r=this._actionsByClip[n];this._bindAction(t,r&&r.knownActions[0]),this._addInactiveAction(t,n,e)}const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==n.useCount++&&(this._lendBinding(n),n.saveOriginalState())}this._lendAction(t)}}_deactivateAction(t){if(this._isActiveAction(t)){const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==--n.useCount&&(n.restoreOriginalState(),this._takeBackBinding(n))}this._takeBackAction(t)}}_initMemoryManager(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;const t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}}_isActiveAction(t){const e=t._cacheIndex;return null!==e&&e<this._nActiveActions}_addInactiveAction(t,e,n){const r=this._actions,i=this._actionsByClip;let s=i[e];if(void 0===s)s={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,i[e]=s;else{const e=s.knownActions;t._byClipCacheIndex=e.length,e.push(t)}t._cacheIndex=r.length,r.push(t),s.actionByRoot[n]=t}_removeInactiveAction(t){const e=this._actions,n=e[e.length-1],r=t._cacheIndex;n._cacheIndex=r,e[r]=n,e.pop(),t._cacheIndex=null;const i=t._clip.uuid,s=this._actionsByClip,o=s[i],a=o.knownActions,l=a[a.length-1],c=t._byClipCacheIndex;l._byClipCacheIndex=c,a[c]=l,a.pop(),t._byClipCacheIndex=null,delete o.actionByRoot[(t._localRoot||this._root).uuid],0===a.length&&delete s[i],this._removeInactiveBindingsForAction(t)}_removeInactiveBindingsForAction(t){const e=t._propertyBindings;for(let n=0,r=e.length;n!==r;++n){const t=e[n];0==--t.referenceCount&&this._removeInactiveBinding(t)}}_lendAction(t){const e=this._actions,n=t._cacheIndex,r=this._nActiveActions++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackAction(t){const e=this._actions,n=t._cacheIndex,r=--this._nActiveActions,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_addInactiveBinding(t,e,n){const r=this._bindingsByRootAndName,i=this._bindings;let s=r[e];void 0===s&&(s={},r[e]=s),s[n]=t,t._cacheIndex=i.length,i.push(t)}_removeInactiveBinding(t){const e=this._bindings,n=t.binding,r=n.rootNode.uuid,i=n.path,s=this._bindingsByRootAndName,o=s[r],a=e[e.length-1],l=t._cacheIndex;a._cacheIndex=l,e[l]=a,e.pop(),delete o[i],0===Object.keys(o).length&&delete s[r]}_lendBinding(t){const e=this._bindings,n=t._cacheIndex,r=this._nActiveBindings++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackBinding(t){const e=this._bindings,n=t._cacheIndex,r=--this._nActiveBindings,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_lendControlInterpolant(){const t=this._controlInterpolants,e=this._nActiveControlInterpolants++;let n=t[e];return void 0===n&&((n=new Yp(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer)).__cacheIndex=e,t[e]=n),n}_takeBackControlInterpolant(t){const e=this._controlInterpolants,n=t.__cacheIndex,r=--this._nActiveControlInterpolants,i=e[r];t.__cacheIndex=r,e[r]=t,i.__cacheIndex=n,e[n]=i}clipAction(t,e,n){const r=e||this._root,i=r.uuid;let s="string"==typeof t?id.findByName(r,t):t;const o=null!==s?s.uuid:t,a=this._actionsByClip[o];let l=null;if(void 0===n&&(n=null!==s?s.blendMode:ke),void 0!==a){const t=a.actionByRoot[i];if(void 0!==t&&t.blendMode===n)return t;l=a.knownActions[0],null===s&&(s=l._clip)}if(null===s)return null;const c=new df(this,s,e,n);return this._bindAction(c,l),this._addInactiveAction(c,o,i),c}existingAction(t,e){const n=e||this._root,r=n.uuid,i="string"==typeof t?id.findByName(n,t):t,s=i?i.uuid:t,o=this._actionsByClip[s];return void 0!==o&&o.actionByRoot[r]||null}stopAllAction(){const t=this._actions;for(let e=this._nActiveActions-1;e>=0;--e)t[e].stop();return this}update(t){t*=this.timeScale;const e=this._actions,n=this._nActiveActions,r=this.time+=t,i=Math.sign(t),s=this._accuIndex^=1;for(let l=0;l!==n;++l){e[l]._update(r,t,i,s)}const o=this._bindings,a=this._nActiveBindings;for(let l=0;l!==a;++l)o[l].apply(s);return this}setTime(t){this.time=0;for(let e=0;e<this._actions.length;e++)this._actions[e].time=0;return this.update(t)}getRoot(){return this._root}uncacheClip(t){const e=this._actions,n=t.uuid,r=this._actionsByClip,i=r[n];if(void 0!==i){const t=i.knownActions;for(let n=0,r=t.length;n!==r;++n){const r=t[n];this._deactivateAction(r);const i=r._cacheIndex,s=e[e.length-1];r._cacheIndex=null,r._byClipCacheIndex=null,s._cacheIndex=i,e[i]=s,e.pop(),this._removeInactiveBindingsForAction(r)}delete r[n]}}uncacheRoot(t){const e=t.uuid,n=this._actionsByClip;for(const i in n){const t=n[i].actionByRoot[e];void 0!==t&&(this._deactivateAction(t),this._removeInactiveAction(t))}const r=this._bindingsByRootAndName[e];if(void 0!==r)for(const i in r){const t=r[i];t.restoreOriginalState(),this._removeInactiveBinding(t)}}uncacheAction(t,e){const n=this.existingAction(t,e);null!==n&&(this._deactivateAction(n),this._removeInactiveAction(n))}}exports.AnimationMixer=mf,mf.prototype._controlInterpolantsResultBuffer=new Float32Array(1);class ff{constructor(t){"string"==typeof t&&(console.warn("THREE.Uniform: Type parameter is no longer needed."),t=arguments[1]),this.value=t}clone(){return new ff(void 0===this.value.clone?this.value:this.value.clone())}}function gf(t,e,n){_h.call(this,t,e),this.meshPerAttribute=n||1}function xf(t,e,n,r,i){this.buffer=t,this.type=e,this.itemSize=n,this.elementSize=r,this.count=i,this.version=0}function vf(t,e,n=0,r=1/0){this.ray=new br(t,e),this.near=n,this.far=r,this.camera=null,this.layers=new Ir,this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}},Object.defineProperties(this.params,{PointCloud:{get:function(){return console.warn("THREE.Raycaster: params.PointCloud has been renamed to params.Points."),this.Points}}})}function yf(t,e){return t.distance-e.distance}function _f(t,e,n,r){if(t.layers.test(e.layers)&&t.raycast(e,n),!0===r){const r=t.children;for(let t=0,i=r.length;t<i;t++)_f(r[t],e,n,!0)}}exports.Uniform=ff,gf.prototype=Object.assign(Object.create(_h.prototype),{constructor:gf,isInstancedInterleavedBuffer:!0,copy:function(t){return _h.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},clone:function(t){const e=_h.prototype.clone.call(this,t);return e.meshPerAttribute=this.meshPerAttribute,e},toJSON:function(t){const e=_h.prototype.toJSON.call(this,t);return e.isInstancedInterleavedBuffer=!0,e.meshPerAttribute=this.meshPerAttribute,e}}),Object.defineProperty(xf.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(xf.prototype,{isGLBufferAttribute:!0,setBuffer:function(t){return this.buffer=t,this},setType:function(t,e){return this.type=t,this.elementSize=e,this},setItemSize:function(t){return this.itemSize=t,this},setCount:function(t){return this.count=t,this}}),Object.assign(vf.prototype,{set:function(t,e){this.ray.set(t,e)},setFromCamera:function(t,e){e&&e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize(),this.camera=e):e&&e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld),this.camera=e):console.error("THREE.Raycaster: Unsupported camera type: "+e.type)},intersectObject:function(t,e=!1,n=[]){return _f(t,this,n,e),n.sort(yf),n},intersectObjects:function(t,e=!1,n=[]){for(let r=0,i=t.length;r<i;r++)_f(t[r],this,n,e);return n.sort(yf),n}});class bf{constructor(t=1,e=0,n=0){return this.radius=t,this.phi=e,this.theta=n,this}set(t,e,n){return this.radius=t,this.phi=e,this.theta=n,this}copy(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this}makeSafe(){return this.phi=Math.max(1e-6,Math.min(Math.PI-1e-6,this.phi)),this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+e*e+n*n),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t,n),this.phi=Math.acos(Fn.clamp(e/this.radius,-1,1))),this}clone(){return(new this.constructor).copy(this)}}exports.Spherical=bf;class wf{constructor(t=1,e=0,n=0){return this.radius=t,this.theta=e,this.y=n,this}set(t,e,n){return this.radius=t,this.theta=e,this.y=n,this}copy(t){return this.radius=t.radius,this.theta=t.theta,this.y=t.y,this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+n*n),this.theta=Math.atan2(t,n),this.y=e,this}clone(){return(new this.constructor).copy(this)}}exports.Cylindrical=wf;const Mf=new On;class Sf{constructor(t=new On(1/0,1/0),e=new On(-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=Mf.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=1/0,this.max.x=this.max.y=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y}getCenter(t){return void 0===t&&(console.warn("THREE.Box2: .getCenter() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box2: .getSize() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box2: .getParameter() target is now required"),e=new On),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y)}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box2: .clampPoint() target is now required"),e=new On),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return Mf.copy(t).clamp(this.min,this.max).sub(t).length()}intersect(t){return this.min.max(t.min),this.max.min(t.max),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box2=Sf,Sf.prototype.isBox2=!0;const Tf=new Yn,Ef=new Yn;class Af{constructor(t=new Yn,e=new Yn){this.start=t,this.end=e}set(t,e){return this.start.copy(t),this.end.copy(e),this}copy(t){return this.start.copy(t.start),this.end.copy(t.end),this}getCenter(t){return void 0===t&&(console.warn("THREE.Line3: .getCenter() target is now required"),t=new Yn),t.addVectors(this.start,this.end).multiplyScalar(.5)}delta(t){return void 0===t&&(console.warn("THREE.Line3: .delta() target is now required"),t=new Yn),t.subVectors(this.end,this.start)}distanceSq(){return this.start.distanceToSquared(this.end)}distance(){return this.start.distanceTo(this.end)}at(t,e){return void 0===e&&(console.warn("THREE.Line3: .at() target is now required"),e=new Yn),this.delta(e).multiplyScalar(t).add(this.start)}closestPointToPointParameter(t,e){Tf.subVectors(t,this.start),Ef.subVectors(this.end,this.start);const n=Ef.dot(Ef);let r=Ef.dot(Tf)/n;return e&&(r=Fn.clamp(r,0,1)),r}closestPointToPoint(t,e,n){const r=this.closestPointToPointParameter(t,e);return void 0===n&&(console.warn("THREE.Line3: .closestPointToPoint() target is now required"),n=new Yn),this.delta(n).multiplyScalar(r).add(this.start)}applyMatrix4(t){return this.start.applyMatrix4(t),this.end.applyMatrix4(t),this}equals(t){return t.start.equals(this.start)&&t.end.equals(this.end)}clone(){return(new this.constructor).copy(this)}}function Lf(t){Xr.call(this),this.material=t,this.render=function(){},this.hasPositions=!1,this.hasNormals=!1,this.hasColors=!1,this.hasUvs=!1,this.positionArray=null,this.normalArray=null,this.colorArray=null,this.uvArray=null,this.count=0}exports.Line3=Af,Lf.prototype=Object.create(Xr.prototype),Lf.prototype.constructor=Lf,Lf.prototype.isImmediateRenderObject=!0;const Rf=new Yn;class Cf extends Xr{constructor(t,e){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=e;const n=new ki,r=[0,0,0,0,0,1,0,0,0,1,0,1,0,0,0,-1,0,1,0,0,0,0,1,1,0,0,0,0,-1,1];for(let s=0,o=1,a=32;s<a;s++,o++){const t=s/a*Math.PI*2,e=o/a*Math.PI*2;r.push(Math.cos(t),Math.sin(t),1,Math.cos(e),Math.sin(e),1)}n.setAttribute("position",new Ci(r,3));const i=new ru({fog:!1,toneMapped:!1});this.cone=new pu(n,i),this.add(this.cone),this.update()}dispose(){this.cone.geometry.dispose(),this.cone.material.dispose()}update(){this.light.updateMatrixWorld();const t=this.light.distance?this.light.distance:1e3,e=t*Math.tan(this.light.angle);this.cone.scale.set(e,e,t),Rf.setFromMatrixPosition(this.light.target.matrixWorld),this.cone.lookAt(Rf),void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}exports.SpotLightHelper=Cf;const Pf=new Yn,Df=new wr,If=new wr;class Bf extends pu{constructor(t){const e=Nf(t),n=new ki,r=[],i=[],s=new xi(0,0,1),o=new xi(0,1,0);for(let a=0;a<e.length;a++){const t=e[a];t.parent&&t.parent.isBone&&(r.push(0,0,0),r.push(0,0,0),i.push(s.r,s.g,s.b),i.push(o.r,o.g,o.b))}n.setAttribute("position",new Ci(r,3)),n.setAttribute("color",new Ci(i,3)),super(n,new ru({vertexColors:!0,depthTest:!1,depthWrite:!1,toneMapped:!1,transparent:!0})),this.type="SkeletonHelper",this.isSkeletonHelper=!0,this.root=t,this.bones=e,this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1}updateMatrixWorld(t){const e=this.bones,n=this.geometry,r=n.getAttribute("position");If.copy(this.root.matrixWorld).invert();for(let i=0,s=0;i<e.length;i++){const t=e[i];t.parent&&t.parent.isBone&&(Df.multiplyMatrices(If,t.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s,Pf.x,Pf.y,Pf.z),Df.multiplyMatrices(If,t.parent.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s+1,Pf.x,Pf.y,Pf.z),s+=2)}n.getAttribute("position").needsUpdate=!0,super.updateMatrixWorld(t)}}function Nf(t){const e=[];t&&t.isBone&&e.push(t);for(let n=0;n<t.children.length;n++)e.push.apply(e,Nf(t.children[n]));return e}exports.SkeletonHelper=Bf;class Ff extends os{constructor(t,e,n){super(new Ep(e,4,2),new vi({wireframe:!0,fog:!1,toneMapped:!1})),this.light=t,this.light.updateMatrixWorld(),this.color=n,this.type="PointLightHelper",this.matrix=this.light.matrixWorld,this.matrixAutoUpdate=!1,this.update()}dispose(){this.geometry.dispose(),this.material.dispose()}update(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)}}exports.PointLightHelper=Ff;const Of=new Yn,zf=new xi,Gf=new xi;class Hf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n;const r=new bp(e);r.rotateY(.5*Math.PI),this.material=new vi({wireframe:!0,fog:!1,toneMapped:!1}),void 0===this.color&&(this.material.vertexColors=!0);const i=r.getAttribute("position"),s=new Float32Array(3*i.count);r.setAttribute("color",new bi(s,3)),this.add(new os(r,this.material)),this.update()}dispose(){this.children[0].geometry.dispose(),this.children[0].material.dispose()}update(){const t=this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{const e=t.geometry.getAttribute("color");zf.copy(this.light.color),Gf.copy(this.light.groundColor);for(let t=0,n=e.count;t<n;t++){const r=t<n/2?zf:Gf;e.setXYZ(t,r.r,r.g,r.b)}e.needsUpdate=!0}t.lookAt(Of.setFromMatrixPosition(this.light.matrixWorld).negate())}}exports.HemisphereLightHelper=Hf;class Uf extends pu{constructor(t=10,e=10,n=4473924,r=8947848){n=new xi(n),r=new xi(r);const i=e/2,s=t/e,o=t/2,a=[],l=[];for(let h=0,u=0,p=-o;h<=e;h++,p+=s){a.push(-o,0,p,o,0,p),a.push(p,0,-o,p,0,o);const t=h===i?n:r;t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3}const c=new ki;c.setAttribute("position",new Ci(a,3)),c.setAttribute("color",new Ci(l,3)),super(c,new ru({vertexColors:!0,toneMapped:!1})),this.type="GridHelper"}}exports.GridHelper=Uf;class kf extends pu{constructor(t=10,e=16,n=8,r=64,i=4473924,s=8947848){i=new xi(i),s=new xi(s);const o=[],a=[];for(let c=0;c<=e;c++){const n=c/e*(2*Math.PI),r=Math.sin(n)*t,l=Math.cos(n)*t;o.push(0,0,0),o.push(r,0,l);const h=1&c?i:s;a.push(h.r,h.g,h.b),a.push(h.r,h.g,h.b)}for(let c=0;c<=n;c++){const e=1&c?i:s,l=t-t/n*c;for(let t=0;t<r;t++){let n=t/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l;o.push(i,0,s),a.push(e.r,e.g,e.b),n=(t+1)/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l,o.push(i,0,s),a.push(e.r,e.g,e.b)}}const l=new ki;l.setAttribute("position",new Ci(o,3)),l.setAttribute("color",new Ci(a,3)),super(l,new ru({vertexColors:!0,toneMapped:!1})),this.type="PolarGridHelper"}}exports.PolarGridHelper=kf;const Vf=new Yn,Wf=new Yn,jf=new Yn;class qf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n,void 0===e&&(e=1);let r=new ki;r.setAttribute("position",new Ci([-e,e,0,e,e,0,e,-e,0,-e,-e,0,-e,e,0],3));const i=new ru({fog:!1,toneMapped:!1});this.lightPlane=new cu(r,i),this.add(this.lightPlane),(r=new ki).setAttribute("position",new Ci([0,0,0,0,0,1],3)),this.targetLine=new cu(r,i),this.add(this.targetLine),this.update()}dispose(){this.lightPlane.geometry.dispose(),this.lightPlane.material.dispose(),this.targetLine.geometry.dispose(),this.targetLine.material.dispose()}update(){Vf.setFromMatrixPosition(this.light.matrixWorld),Wf.setFromMatrixPosition(this.light.target.matrixWorld),jf.subVectors(Wf,Vf),this.lightPlane.lookAt(Wf),void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color)),this.targetLine.lookAt(Wf),this.targetLine.scale.z=jf.length()}}exports.DirectionalLightHelper=qf;const Xf=new Yn,Yf=new gs;class Zf extends pu{constructor(t){const e=new ki,n=new ru({color:16777215,vertexColors:!0,toneMapped:!1}),r=[],i=[],s={},o=new xi(16755200),a=new xi(16711680),l=new xi(43775),c=new xi(16777215),h=new xi(3355443);function u(t,e,n){p(t,n),p(e,n)}function p(t,e){r.push(0,0,0),i.push(e.r,e.g,e.b),void 0===s[t]&&(s[t]=[]),s[t].push(r.length/3-1)}u("n1","n2",o),u("n2","n4",o),u("n4","n3",o),u("n3","n1",o),u("f1","f2",o),u("f2","f4",o),u("f4","f3",o),u("f3","f1",o),u("n1","f1",o),u("n2","f2",o),u("n3","f3",o),u("n4","f4",o),u("p","n1",a),u("p","n2",a),u("p","n3",a),u("p","n4",a),u("u1","u2",l),u("u2","u3",l),u("u3","u1",l),u("c","t",c),u("p","c",h),u("cn1","cn2",h),u("cn3","cn4",h),u("cf1","cf2",h),u("cf3","cf4",h),e.setAttribute("position",new Ci(r,3)),e.setAttribute("color",new Ci(i,3)),super(e,n),this.type="CameraHelper",this.camera=t,this.camera.updateProjectionMatrix&&this.camera.updateProjectionMatrix(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.pointMap=s,this.update()}update(){const t=this.geometry,e=this.pointMap;Yf.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse),Jf("c",e,t,Yf,0,0,-1),Jf("t",e,t,Yf,0,0,1),Jf("n1",e,t,Yf,-1,-1,-1),Jf("n2",e,t,Yf,1,-1,-1),Jf("n3",e,t,Yf,-1,1,-1),Jf("n4",e,t,Yf,1,1,-1),Jf("f1",e,t,Yf,-1,-1,1),Jf("f2",e,t,Yf,1,-1,1),Jf("f3",e,t,Yf,-1,1,1),Jf("f4",e,t,Yf,1,1,1),Jf("u1",e,t,Yf,.7,1.1,-1),Jf("u2",e,t,Yf,-.7,1.1,-1),Jf("u3",e,t,Yf,0,2,-1),Jf("cf1",e,t,Yf,-1,0,1),Jf("cf2",e,t,Yf,1,0,1),Jf("cf3",e,t,Yf,0,-1,1),Jf("cf4",e,t,Yf,0,1,1),Jf("cn1",e,t,Yf,-1,0,-1),Jf("cn2",e,t,Yf,1,0,-1),Jf("cn3",e,t,Yf,0,-1,-1),Jf("cn4",e,t,Yf,0,1,-1),t.getAttribute("position").needsUpdate=!0}}function Jf(t,e,n,r,i,s,o){Xf.set(i,s,o).unproject(r);const a=e[t];if(void 0!==a){const t=n.getAttribute("position");for(let e=0,n=a.length;e<n;e++)t.setXYZ(a[e],Xf.x,Xf.y,Xf.z)}}exports.CameraHelper=Zf;const Qf=new Qn;class Kf extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new Float32Array(24),i=new ki;i.setIndex(new bi(n,1)),i.setAttribute("position",new bi(r,3)),super(i,new ru({color:e,toneMapped:!1})),this.object=t,this.type="BoxHelper",this.matrixAutoUpdate=!1,this.update()}update(t){if(void 0!==t&&console.warn("THREE.BoxHelper: .update() has no longer arguments."),void 0!==this.object&&Qf.setFromObject(this.object),Qf.isEmpty())return;const e=Qf.min,n=Qf.max,r=this.geometry.attributes.position,i=r.array;i[0]=n.x,i[1]=n.y,i[2]=n.z,i[3]=e.x,i[4]=n.y,i[5]=n.z,i[6]=e.x,i[7]=e.y,i[8]=n.z,i[9]=n.x,i[10]=e.y,i[11]=n.z,i[12]=n.x,i[13]=n.y,i[14]=e.z,i[15]=e.x,i[16]=n.y,i[17]=e.z,i[18]=e.x,i[19]=e.y,i[20]=e.z,i[21]=n.x,i[22]=e.y,i[23]=e.z,r.needsUpdate=!0,this.geometry.computeBoundingSphere()}setFromObject(t){return this.object=t,this.update(),this}copy(t){return pu.prototype.copy.call(this,t),this.object=t.object,this}}exports.BoxHelper=Kf;class $f extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new ki;r.setIndex(new bi(n,1)),r.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,-1,-1,1,-1,-1,-1,-1,1,-1,-1],3)),super(r,new ru({color:e,toneMapped:!1})),this.box=t,this.type="Box3Helper",this.geometry.computeBoundingSphere()}updateMatrixWorld(t){const e=this.box;e.isEmpty()||(e.getCenter(this.position),e.getSize(this.scale),this.scale.multiplyScalar(.5),super.updateMatrixWorld(t))}}exports.Box3Helper=$f;class tg extends cu{constructor(t,e=1,n=16776960){const r=n,i=new ki;i.setAttribute("position",new Ci([1,-1,1,-1,1,1,-1,-1,1,1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,1,0,0,1,0,0,0],3)),i.computeBoundingSphere(),super(i,new ru({color:r,toneMapped:!1})),this.type="PlaneHelper",this.plane=t,this.size=e;const s=new ki;s.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,1,1,-1,-1,1,1,-1,1],3)),s.computeBoundingSphere(),this.add(new os(s,new vi({color:r,opacity:.2,transparent:!0,depthWrite:!1,toneMapped:!1})))}updateMatrixWorld(t){let e=-this.plane.constant;Math.abs(e)<1e-8&&(e=1e-8),this.scale.set(.5*this.size,.5*this.size,e),this.children[0].material.side=e<0?p:u,this.lookAt(this.plane.normal),super.updateMatrixWorld(t)}}exports.PlaneHelper=tg;const eg=new Yn;let ng,rg;class ig extends Xr{constructor(t=new Yn(0,0,1),e=new Yn(0,0,0),n=1,r=16776960,i=.2*n,s=.2*i){super(),this.type="ArrowHelper",void 0===ng&&((ng=new ki).setAttribute("position",new Ci([0,0,0,0,1,0],3)),(rg=new Eu(0,.5,1,5,1)).translate(0,-.5,0)),this.position.copy(e),this.line=new cu(ng,new ru({color:r,toneMapped:!1})),this.line.matrixAutoUpdate=!1,this.add(this.line),this.cone=new os(rg,new vi({color:r,toneMapped:!1})),this.cone.matrixAutoUpdate=!1,this.add(this.cone),this.setDirection(t),this.setLength(n,i,s)}setDirection(t){if(t.y>.99999)this.quaternion.set(0,0,0,1);else if(t.y<-.99999)this.quaternion.set(1,0,0,0);else{eg.set(t.z,0,-t.x).normalize();const e=Math.acos(t.y);this.quaternion.setFromAxisAngle(eg,e)}}setLength(t,e=.2*t,n=.2*e){this.line.scale.set(1,Math.max(1e-4,t-e),1),this.line.updateMatrix(),this.cone.scale.set(n,e,n),this.cone.position.y=t,this.cone.updateMatrix()}setColor(t){this.line.material.color.set(t),this.cone.material.color.set(t)}copy(t){return super.copy(t,!1),this.line.copy(t.line),this.cone.copy(t.cone),this}}exports.ArrowHelper=ig;class sg extends pu{constructor(t=1){const e=[0,0,0,t,0,0,0,0,0,0,t,0,0,0,0,0,0,t],n=new ki;n.setAttribute("position",new Ci(e,3)),n.setAttribute("color",new Ci([1,0,0,1,.6,0,0,1,0,.6,1,0,0,0,1,0,.6,1],3)),super(n,new ru({vertexColors:!0,toneMapped:!1})),this.type="AxesHelper"}}exports.AxesHelper=sg;const og=new Float32Array(1),ag=new Int32Array(og.buffer),lg={toHalfFloat:function(t){og[0]=t;const e=ag[0];let n=e>>16&32768,r=e>>12&2047;const i=e>>23&255;return i<103?n:i>142?(n|=31744,n|=(255==i?0:1)&&8388607&e):i<113?n|=((r|=2048)>>114-i)+(r>>113-i&1):(n|=i-112<<10|r>>1,n+=1&r)}};exports.DataUtils=lg;const cg=4,hg=8,ug=Math.pow(2,hg),pg=[.125,.215,.35,.446,.526,.582],dg=hg-cg+1+pg.length,mg=20,fg={[Xe]:0,[Ye]:1,[Je]:2,[Ke]:3,[$e]:4,[tn]:5,[Ze]:6},gg=new vi({side:p,depthWrite:!1,depthTest:!1}),xg=new os(new cs,gg),vg=new lm,{_lodPlanes:yg,_sizeLods:_g,_sigmas:bg}=Cg(),wg=new xi;let Mg=null;const Sg=(1+Math.sqrt(5))/2,Tg=1/Sg,Eg=[new Yn(1,1,1),new Yn(-1,1,1),new Yn(1,1,-1),new Yn(-1,1,-1),new Yn(0,Sg,Tg),new Yn(0,Sg,-Tg),new Yn(Tg,0,Sg),new Yn(-Tg,0,Sg),new Yn(Sg,Tg,0),new Yn(-Sg,Tg,0)];function Ag(t){const e=Math.max(t.r,t.g,t.b),n=Math.min(Math.max(Math.ceil(Math.log2(e)),-128),127);return t.multiplyScalar(Math.pow(2,-n)),(n+128)/255}class Lg{constructor(t){this._renderer=t,this._pingPongRenderTarget=null,this._blurMaterial=Ig(mg),this._equirectShader=null,this._cubemapShader=null,this._compileMaterial(this._blurMaterial)}fromScene(t,e=0,n=.1,r=100){Mg=this._renderer.getRenderTarget();const i=this._allocateTargets();return this._sceneToCubeUV(t,n,r,i),e>0&&this._blur(i,0,0,e),this._applyPMREM(i),this._cleanup(i),i}fromEquirectangular(t){return this._fromTexture(t)}fromCubemap(t){return this._fromTexture(t)}compileCubemapShader(){null===this._cubemapShader&&(this._cubemapShader=Ng(),this._compileMaterial(this._cubemapShader))}compileEquirectangularShader(){null===this._equirectShader&&(this._equirectShader=Bg(),this._compileMaterial(this._equirectShader))}dispose(){this._blurMaterial.dispose(),null!==this._cubemapShader&&this._cubemapShader.dispose(),null!==this._equirectShader&&this._equirectShader.dispose();for(let t=0;t<yg.length;t++)yg[t].dispose()}_cleanup(t){this._pingPongRenderTarget.dispose(),this._renderer.setRenderTarget(Mg),t.scissorTest=!1,Dg(t,0,0,t.width,t.height)}_fromTexture(t){Mg=this._renderer.getRenderTarget();const e=this._allocateTargets(t);return this._textureToCubeUV(t,e),this._applyPMREM(e),this._cleanup(e),e}_allocateTargets(t){const e={magFilter:ut,minFilter:ut,generateMipmaps:!1,type:bt,format:zt,encoding:Rg(t)?t.encoding:Je,depthBuffer:!1},n=Pg(e);return n.depthBuffer=!t,this._pingPongRenderTarget=Pg(e),n}_compileMaterial(t){const e=new os(yg[0],t);this._renderer.compile(e,vg)}_sceneToCubeUV(t,e,n,r){const i=new xs(90,1,e,n),s=[1,-1,1,1,1,1],o=[1,1,1,-1,-1,-1],a=this._renderer,l=a.autoClear,c=a.outputEncoding,h=a.toneMapping;a.getClearColor(wg),a.toneMapping=Z,a.outputEncoding=Xe,a.autoClear=!1;let u=!1;const p=t.background;if(p){if(p.isColor){gg.color.copy(p).convertSRGBToLinear(),t.background=null;const e=Ag(gg.color);gg.opacity=e,u=!0}}else{gg.color.copy(wg).convertSRGBToLinear();const t=Ag(gg.color);gg.opacity=t,u=!0}for(let d=0;d<6;d++){const e=d%3;0==e?(i.up.set(0,s[d],0),i.lookAt(o[d],0,0)):1==e?(i.up.set(0,0,s[d]),i.lookAt(0,o[d],0)):(i.up.set(0,s[d],0),i.lookAt(0,0,o[d])),Dg(r,e*ug,d>2?ug:0,ug,ug),a.setRenderTarget(r),u&&a.render(xg,i),a.render(t,i)}a.toneMapping=h,a.outputEncoding=c,a.autoClear=l}_textureToCubeUV(t,e){const n=this._renderer;t.isCubeTexture?null==this._cubemapShader&&(this._cubemapShader=Ng()):null==this._equirectShader&&(this._equirectShader=Bg());const r=t.isCubeTexture?this._cubemapShader:this._equirectShader,i=new os(yg[0],r),s=r.uniforms;s.envMap.value=t,t.isCubeTexture||s.texelSize.value.set(1/t.image.width,1/t.image.height),s.inputEncoding.value=fg[t.encoding],s.outputEncoding.value=fg[e.texture.encoding],Dg(e,0,0,3*ug,2*ug),n.setRenderTarget(e),n.render(i,vg)}_applyPMREM(t){const e=this._renderer,n=e.autoClear;e.autoClear=!1;for(let r=1;r<dg;r++){const e=Math.sqrt(bg[r]*bg[r]-bg[r-1]*bg[r-1]),n=Eg[(r-1)%Eg.length];this._blur(t,r-1,r,e,n)}e.autoClear=n}_blur(t,e,n,r,i){const s=this._pingPongRenderTarget;this._halfBlur(t,s,e,n,r,"latitudinal",i),this._halfBlur(s,t,n,n,r,"longitudinal",i)}_halfBlur(t,e,n,r,i,s,o){const a=this._renderer,l=this._blurMaterial;"latitudinal"!==s&&"longitudinal"!==s&&console.error("blur direction must be either latitudinal or longitudinal!");const c=new os(yg[r],l),h=l.uniforms,u=_g[n]-1,p=isFinite(i)?Math.PI/(2*u):2*Math.PI/(2*mg-1),d=i/p,m=isFinite(i)?1+Math.floor(3*d):mg;m>mg&&console.warn(`sigmaRadians, ${i}, is too large and will clip, as it requested ${m} samples when the maximum is set to ${mg}`);const f=[];let g=0;for(let v=0;v<mg;++v){const t=v/d,e=Math.exp(-t*t/2);f.push(e),0==v?g+=e:v<m&&(g+=2*e)}for(let v=0;v<f.length;v++)f[v]=f[v]/g;h.envMap.value=t.texture,h.samples.value=m,h.weights.value=f,h.latitudinal.value="latitudinal"===s,o&&(h.poleAxis.value=o),h.dTheta.value=p,h.mipInt.value=hg-n,h.inputEncoding.value=fg[t.texture.encoding],h.outputEncoding.value=fg[t.texture.encoding];const x=_g[r];Dg(e,3*Math.max(0,ug-2*x),(0===r?0:2*ug)+2*x*(r>hg-cg?r-hg+cg:0),3*x,2*x),a.setRenderTarget(e),a.render(c,vg)}}function Rg(t){return void 0!==t&&t.type===bt&&(t.encoding===Xe||t.encoding===Ye||t.encoding===Ze)}function Cg(){const t=[],e=[],n=[];let r=hg;for(let i=0;i<dg;i++){const s=Math.pow(2,r);e.push(s);let o=1/s;i>hg-cg?o=pg[i-hg+cg-1]:0==i&&(o=0),n.push(o);const a=1/(s-1),l=-a/2,c=1+a/2,h=[l,l,c,l,c,c,l,l,c,c,l,c],u=6,p=6,d=3,m=2,f=1,g=new Float32Array(d*p*u),x=new Float32Array(m*p*u),v=new Float32Array(f*p*u);for(let t=0;t<u;t++){const e=t%3*2/3-1,n=t>2?0:-1,r=[e,n,0,e+2/3,n,0,e+2/3,n+1,0,e,n,0,e+2/3,n+1,0,e,n+1,0];g.set(r,d*p*t),x.set(h,m*p*t);const i=[t,t,t,t,t,t];v.set(i,f*p*t)}const y=new ki;y.setAttribute("position",new bi(g,d)),y.setAttribute("uv",new bi(x,m)),y.setAttribute("faceIndex",new bi(v,f)),t.push(y),r>cg&&r--}return{_lodPlanes:t,_sizeLods:e,_sigmas:n}}function Pg(t){const e=new jn(3*ug,3*ug,t);return e.texture.mapping=ot,e.texture.name="PMREM.cubeUv",e.scissorTest=!0,e}function Dg(t,e,n,r,i){t.viewport.set(e,n,r,i),t.scissor.set(e,n,r,i)}function Ig(t){const e=new Float32Array(t),n=new Yn(0,1,0);return new Np({name:"SphericalGaussianBlur",defines:{n:t},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:e},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:n},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t${Og()}\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include <cube_uv_reflection_fragment>\n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Bg(){const t=new On(1,1);return new Np({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null},texelSize:{value:t},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform vec2 texelSize;\n\n\t\t\t${Og()}\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tvec2 f = fract( uv / texelSize - 0.5 );\n\t\t\t\tuv -= f * texelSize;\n\t\t\t\tvec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x += texelSize.x;\n\t\t\t\tvec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.y += texelSize.y;\n\t\t\t\tvec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x -= texelSize.x;\n\t\t\t\tvec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\n\t\t\t\tvec3 tm = mix( tl, tr, f.x );\n\t\t\t\tvec3 bm = mix( bl, br, f.x );\n\t\t\t\tgl_FragColor.rgb = mix( tm, bm, f.y );\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Ng(){return new Np({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\t${Og()}\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Fg(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute vec3 position;\n\t\tattribute vec2 uv;\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Og(){return"\n\n\t\tuniform int inputEncoding;\n\t\tuniform int outputEncoding;\n\n\t\t#include <encodings_pars_fragment>\n\n\t\tvec4 inputTexelToLinear( vec4 value ) {\n\n\t\t\tif ( inputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( inputEncoding == 1 ) {\n\n\t\t\t\treturn sRGBToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 2 ) {\n\n\t\t\t\treturn RGBEToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 3 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 7.0 );\n\n\t\t\t} else if ( inputEncoding == 4 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 16.0 );\n\n\t\t\t} else if ( inputEncoding == 5 ) {\n\n\t\t\t\treturn RGBDToLinear( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn GammaToLinear( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 linearToOutputTexel( vec4 value ) {\n\n\t\t\tif ( outputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( outputEncoding == 1 ) {\n\n\t\t\t\treturn LinearTosRGB( value );\n\n\t\t\t} else if ( outputEncoding == 2 ) {\n\n\t\t\t\treturn LinearToRGBE( value );\n\n\t\t\t} else if ( outputEncoding == 3 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 7.0 );\n\n\t\t\t} else if ( outputEncoding == 4 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 16.0 );\n\n\t\t\t} else if ( outputEncoding == 5 ) {\n\n\t\t\t\treturn LinearToRGBD( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn LinearToGamma( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 envMapTexelToLinear( vec4 color ) {\n\n\t\t\treturn inputTexelToLinear( color );\n\n\t\t}\n\t"}exports.PMREMGenerator=Lg;const zg=0;exports.LineStrip=0;const Gg=1;exports.LinePieces=1;const Hg=0;exports.NoColors=0;const Ug=1;exports.FaceColors=1;const kg=2;function Vg(t){return console.warn("THREE.MeshFaceMaterial has been removed. Use an Array instead."),t}function Wg(t=[]){return console.warn("THREE.MultiMaterial has been removed. Use an Array instead."),t.isMultiMaterial=!0,t.materials=t,t.clone=function(){return t.slice()},t}function jg(t,e){return console.warn("THREE.PointCloud has been renamed to THREE.Points."),new yu(t,e)}function qg(t){return console.warn("THREE.Particle has been renamed to THREE.Sprite."),new Oh(t)}function Xg(t,e){return console.warn("THREE.ParticleSystem has been renamed to THREE.Points."),new yu(t,e)}function Yg(t){return console.warn("THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Zg(t){return console.warn("THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Jg(t){return console.warn("THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Qg(t,e,n){return console.warn("THREE.Vertex has been removed. Use THREE.Vector3 instead."),new Yn(t,e,n)}function Kg(t,e){return console.warn("THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead."),new bi(t,e).setUsage(Mn)}function $g(t,e){return console.warn("THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead."),new wi(t,e)}function tx(t,e){return console.warn("THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead."),new Mi(t,e)}function ex(t,e){return console.warn("THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead."),new Si(t,e)}function nx(t,e){return console.warn("THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead."),new Ti(t,e)}function rx(t,e){return console.warn("THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead."),new Ei(t,e)}function ix(t,e){return console.warn("THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead."),new Ai(t,e)}function sx(t,e){return console.warn("THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead."),new Li(t,e)}function ox(t,e){return console.warn("THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead."),new Ci(t,e)}function ax(t,e){return console.warn("THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead."),new Pi(t,e)}function lx(t){return console.warn("THREE.AxisHelper has been renamed to THREE.AxesHelper."),new sg(t)}function cx(t,e){return console.warn("THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead."),new Kf(t,e)}function hx(t,e){return console.warn("THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead."),new pu(new Bu(t.geometry),new ru({color:void 0!==e?e:16777215}))}function ux(t,e){return console.warn("THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead."),new pu(new Dp(t.geometry),new ru({color:void 0!==e?e:16777215}))}function px(t){return console.warn("THREE.XHRLoader has been renamed to THREE.FileLoader."),new pd(t)}function dx(t){return console.warn("THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader."),new xd(t)}function mx(t,e,n){return console.warn("THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options )."),new ws(t,n)}function fx(){console.error("THREE.CanvasRenderer has been removed")}function gx(){console.error("THREE.JSONLoader has been removed.")}exports.VertexColors=2,yd.create=function(t,e){return console.log("THREE.Curve.create() has been deprecated"),t.prototype=Object.create(yd.prototype),t.prototype.constructor=t,t.prototype.getPoint=e,t},Xd.prototype.fromPoints=function(t){return console.warn("THREE.Path: .fromPoints() has been renamed to .setFromPoints()."),this.setFromPoints(t)},Uf.prototype.setColors=function(){console.error("THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.")},Bf.prototype.update=function(){console.error("THREE.SkeletonHelper: update() no longer needs to be called.")},hd.prototype.extractUrlBase=function(t){return console.warn("THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead."),gm.extractUrlBase(t)},hd.Handlers={add:function(){console.error("THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.")},get:function(){console.error("THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.")}},Sf.prototype.center=function(t){return console.warn("THREE.Box2: .center() has been renamed to .getCenter()."),this.getCenter(t)},Sf.prototype.empty=function(){return console.warn("THREE.Box2: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Sf.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Sf.prototype.size=function(t){return console.warn("THREE.Box2: .size() has been renamed to .getSize()."),this.getSize(t)},Qn.prototype.center=function(t){return console.warn("THREE.Box3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Qn.prototype.empty=function(){return console.warn("THREE.Box3: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Qn.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Qn.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},Qn.prototype.size=function(t){return console.warn("THREE.Box3: .size() has been renamed to .getSize()."),this.getSize(t)},dr.prototype.empty=function(){return console.warn("THREE.Sphere: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Es.prototype.setFromMatrix=function(t){return console.warn("THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix()."),this.setFromProjectionMatrix(t)},Af.prototype.center=function(t){return console.warn("THREE.Line3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Fn.random16=function(){return console.warn("THREE.Math: .random16() has been deprecated. Use Math.random() instead."),Math.random()},Fn.nearestPowerOfTwo=function(t){return console.warn("THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo()."),Fn.floorPowerOfTwo(t)},Fn.nextPowerOfTwo=function(t){return console.warn("THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo()."),Fn.ceilPowerOfTwo(t)},zn.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},zn.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix3: .multiplyVector3Array() has been removed.")},zn.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.applyToVector3Array=function(){console.error("THREE.Matrix3: .applyToVector3Array() has been removed.")},zn.prototype.getInverse=function(t){return console.warn("THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},wr.prototype.extractPosition=function(t){return console.warn("THREE.Matrix4: .extractPosition() has been renamed to .copyPosition()."),this.copyPosition(t)},wr.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},wr.prototype.getPosition=function(){return console.warn("THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead."),(new Yn).setFromMatrixColumn(this,3)},wr.prototype.setRotationFromQuaternion=function(t){return console.warn("THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion()."),this.makeRotationFromQuaternion(t)},wr.prototype.multiplyToArray=function(){console.warn("THREE.Matrix4: .multiplyToArray() has been removed.")},wr.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector4=function(t){return console.warn("THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix4: .multiplyVector3Array() has been removed.")},wr.prototype.rotateAxis=function(t){console.warn("THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead."),t.transformDirection(this)},wr.prototype.crossVector=function(t){return console.warn("THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.translate=function(){console.error("THREE.Matrix4: .translate() has been removed.")},wr.prototype.rotateX=function(){console.error("THREE.Matrix4: .rotateX() has been removed.")},wr.prototype.rotateY=function(){console.error("THREE.Matrix4: .rotateY() has been removed.")},wr.prototype.rotateZ=function(){console.error("THREE.Matrix4: .rotateZ() has been removed.")},wr.prototype.rotateByAxis=function(){console.error("THREE.Matrix4: .rotateByAxis() has been removed.")},wr.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.applyToVector3Array=function(){console.error("THREE.Matrix4: .applyToVector3Array() has been removed.")},wr.prototype.makeFrustum=function(t,e,n,r,i,s){return console.warn("THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead."),this.makePerspective(t,e,r,n,i,s)},wr.prototype.getInverse=function(t){return console.warn("THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},Qr.prototype.isIntersectionLine=function(t){return console.warn("THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine()."),this.intersectsLine(t)},Xn.prototype.multiplyVector3=function(t){return console.warn("THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead."),t.applyQuaternion(this)},Xn.prototype.inverse=function(){return console.warn("THREE.Quaternion: .inverse() has been renamed to invert()."),this.invert()},br.prototype.isIntersectionBox=function(t){return console.warn("THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},br.prototype.isIntersectionPlane=function(t){return console.warn("THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane()."),this.intersectsPlane(t)},br.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},li.prototype.area=function(){return console.warn("THREE.Triangle: .area() has been renamed to .getArea()."),this.getArea()},li.prototype.barycoordFromPoint=function(t,e){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),this.getBarycoord(t,e)},li.prototype.midpoint=function(t){return console.warn("THREE.Triangle: .midpoint() has been renamed to .getMidpoint()."),this.getMidpoint(t)},li.prototypenormal=function(t){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),this.getNormal(t)},li.prototype.plane=function(t){return console.warn("THREE.Triangle: .plane() has been renamed to .getPlane()."),this.getPlane(t)},li.barycoordFromPoint=function(t,e,n,r,i){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),li.getBarycoord(t,e,n,r,i)},li.normal=function(t,e,n,r){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),li.getNormal(t,e,n,r)},Yd.prototype.extractAllPoints=function(t){return console.warn("THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead."),this.extractPoints(t)},Yd.prototype.extrude=function(t){return console.warn("THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead."),new gp(this,t)},Yd.prototype.makeGeometry=function(t){return console.warn("THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead."),new Sp(this,t)},On.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},On.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},On.prototype.lengthManhattan=function(){return console.warn("THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Yn.prototype.setEulerFromRotationMatrix=function(){console.error("THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.")},Yn.prototype.setEulerFromQuaternion=function(){console.error("THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.")},Yn.prototype.getPositionFromMatrix=function(t){return console.warn("THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition()."),this.setFromMatrixPosition(t)},Yn.prototype.getScaleFromMatrix=function(t){return console.warn("THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale()."),this.setFromMatrixScale(t)},Yn.prototype.getColumnFromMatrix=function(t,e){return console.warn("THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn()."),this.setFromMatrixColumn(e,t)},Yn.prototype.applyProjection=function(t){return console.warn("THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead."),this.applyMatrix4(t)},Yn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Yn.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},Yn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Wn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Wn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Xr.prototype.getChildByName=function(t){return console.warn("THREE.Object3D: .getChildByName() has been renamed to .getObjectByName()."),this.getObjectByName(t)},Xr.prototype.renderDepth=function(){console.warn("THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.")},Xr.prototype.translate=function(t,e){return console.warn("THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead."),this.translateOnAxis(e,t)},Xr.prototype.getWorldRotation=function(){console.error("THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.")},Xr.prototype.applyMatrix=function(t){return console.warn("THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(Xr.prototype,{eulerOrder:{get:function(){return console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order},set:function(t){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order=t}},useQuaternion:{get:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")},set:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")}}}),os.prototype.setDrawMode=function(){console.error("THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")},Object.defineProperties(os.prototype,{drawMode:{get:function(){return console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode."),0},set:function(){console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")}}}),Object.defineProperties(Uh.prototype,{objects:{get:function(){return console.warn("THREE.LOD: .objects has been renamed to .levels."),this.levels}}}),Object.defineProperty(Qh.prototype,"useVertexTexture",{get:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")},set:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")}}),Xh.prototype.initBones=function(){console.error("THREE.SkinnedMesh: initBones() has been removed.")},Object.defineProperty(yd.prototype,"__arcLengthDivisions",{get:function(){return console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions},set:function(t){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions=t}}),xs.prototype.setLens=function(t,e){console.warn("THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup."),void 0!==e&&(this.filmGauge=e),this.setFocalLength(t)},Object.defineProperties(Zd.prototype,{onlyShadow:{set:function(){console.warn("THREE.Light: .onlyShadow has been removed.")}},shadowCameraFov:{set:function(t){console.warn("THREE.Light: .shadowCameraFov is now .shadow.camera.fov."),this.shadow.camera.fov=t}},shadowCameraLeft:{set:function(t){console.warn("THREE.Light: .shadowCameraLeft is now .shadow.camera.left."),this.shadow.camera.left=t}},shadowCameraRight:{set:function(t){console.warn("THREE.Light: .shadowCameraRight is now .shadow.camera.right."),this.shadow.camera.right=t}},shadowCameraTop:{set:function(t){console.warn("THREE.Light: .shadowCameraTop is now .shadow.camera.top."),this.shadow.camera.top=t}},shadowCameraBottom:{set:function(t){console.warn("THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom."),this.shadow.camera.bottom=t}},shadowCameraNear:{set:function(t){console.warn("THREE.Light: .shadowCameraNear is now .shadow.camera.near."),this.shadow.camera.near=t}},shadowCameraFar:{set:function(t){console.warn("THREE.Light: .shadowCameraFar is now .shadow.camera.far."),this.shadow.camera.far=t}},shadowCameraVisible:{set:function(){console.warn("THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.")}},shadowBias:{set:function(t){console.warn("THREE.Light: .shadowBias is now .shadow.bias."),this.shadow.bias=t}},shadowDarkness:{set:function(){console.warn("THREE.Light: .shadowDarkness has been removed.")}},shadowMapWidth:{set:function(t){console.warn("THREE.Light: .shadowMapWidth is now .shadow.mapSize.width."),this.shadow.mapSize.width=t}},shadowMapHeight:{set:function(t){console.warn("THREE.Light: .shadowMapHeight is now .shadow.mapSize.height."),this.shadow.mapSize.height=t}}}),Object.defineProperties(bi.prototype,{length:{get:function(){return console.warn("THREE.BufferAttribute: .length has been deprecated. Use .count instead."),this.array.length}},dynamic:{get:function(){return console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.usage===Mn},set:function(){console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.setUsage(Mn)}}}),bi.prototype.setDynamic=function(t){return console.warn("THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},bi.prototype.copyIndicesArray=function(){console.error("THREE.BufferAttribute: .copyIndicesArray() has been removed.")},bi.prototype.setArray=function(){console.error("THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},ki.prototype.addIndex=function(t){console.warn("THREE.BufferGeometry: .addIndex() has been renamed to .setIndex()."),this.setIndex(t)},ki.prototype.addAttribute=function(t,e){return console.warn("THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute()."),e&&e.isBufferAttribute||e&&e.isInterleavedBufferAttribute?"index"===t?(console.warn("THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute."),this.setIndex(e),this):this.setAttribute(t,e):(console.warn("THREE.BufferGeometry: .addAttribute() now expects ( name, attribute )."),this.setAttribute(t,new bi(arguments[1],arguments[2])))},ki.prototype.addDrawCall=function(t,e,n){void 0!==n&&console.warn("THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset."),console.warn("THREE.BufferGeometry: .addDrawCall() is now .addGroup()."),this.addGroup(t,e)},ki.prototype.clearDrawCalls=function(){console.warn("THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups()."),this.clearGroups()},ki.prototype.computeOffsets=function(){console.warn("THREE.BufferGeometry: .computeOffsets() has been removed.")},ki.prototype.removeAttribute=function(t){return console.warn("THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute()."),this.deleteAttribute(t)},ki.prototype.applyMatrix=function(t){return console.warn("THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(ki.prototype,{drawcalls:{get:function(){return console.error("THREE.BufferGeometry: .drawcalls has been renamed to .groups."),this.groups}},offsets:{get:function(){return console.warn("THREE.BufferGeometry: .offsets has been renamed to .groups."),this.groups}}}),Object.defineProperties(xm.prototype,{maxInstancedCount:{get:function(){return console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount},set:function(t){console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount=t}}}),Object.defineProperties(vf.prototype,{linePrecision:{get:function(){return console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold},set:function(t){console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold=t}}}),Object.defineProperties(_h.prototype,{dynamic:{get:function(){return console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.usage===Mn},set:function(t){console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.setUsage(t)}}}),_h.prototype.setDynamic=function(t){return console.warn("THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},_h.prototype.setArray=function(){console.error("THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},gp.prototype.getArrays=function(){console.error("THREE.ExtrudeGeometry: .getArrays() has been removed.")},gp.prototype.addShapeList=function(){console.error("THREE.ExtrudeGeometry: .addShapeList() has been removed.")},gp.prototype.addShape=function(){console.error("THREE.ExtrudeGeometry: .addShape() has been removed.")},yh.prototype.dispose=function(){console.error("THREE.Scene: .dispose() has been removed.")},Object.defineProperties(ff.prototype,{dynamic:{set:function(){console.warn("THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.")}},onUpdate:{value:function(){return console.warn("THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead."),this}}}),Object.defineProperties(hi.prototype,{wrapAround:{get:function(){console.warn("THREE.Material: .wrapAround has been removed.")},set:function(){console.warn("THREE.Material: .wrapAround has been removed.")}},overdraw:{get:function(){console.warn("THREE.Material: .overdraw has been removed.")},set:function(){console.warn("THREE.Material: .overdraw has been removed.")}},wrapRGB:{get:function(){return console.warn("THREE.Material: .wrapRGB has been removed."),new xi}},shading:{get:function(){console.error("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")},set:function(t){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===t}},stencilMask:{get:function(){return console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask},set:function(t){console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask=t}}}),Object.defineProperties(zp.prototype,{metal:{get:function(){return console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead."),!1},set:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead")}}}),Object.defineProperties(Op.prototype,{transparency:{get:function(){return console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission},set:function(t){console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission=t}}}),Object.defineProperties(fs.prototype,{derivatives:{get:function(){return console.warn("THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives},set:function(t){console.warn("THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives=t}}}),fh.prototype.clearTarget=function(t,e,n,r){console.warn("THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead."),this.setRenderTarget(t),this.clear(e,n,r)},fh.prototype.animate=function(t){console.warn("THREE.WebGLRenderer: .animate() is now .setAnimationLoop()."),this.setAnimationLoop(t)},fh.prototype.getCurrentRenderTarget=function(){return console.warn("THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget()."),this.getRenderTarget()},fh.prototype.getMaxAnisotropy=function(){return console.warn("THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy()."),this.capabilities.getMaxAnisotropy()},fh.prototype.getPrecision=function(){return console.warn("THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision."),this.capabilities.precision},fh.prototype.resetGLState=function(){return console.warn("THREE.WebGLRenderer: .resetGLState() is now .state.reset()."),this.state.reset()},fh.prototype.supportsFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' )."),this.extensions.get("OES_texture_float")},fh.prototype.supportsHalfFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' )."),this.extensions.get("OES_texture_half_float")},fh.prototype.supportsStandardDerivatives=function(){return console.warn("THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' )."),this.extensions.get("OES_standard_derivatives")},fh.prototype.supportsCompressedTextureS3TC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' )."),this.extensions.get("WEBGL_compressed_texture_s3tc")},fh.prototype.supportsCompressedTexturePVRTC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' )."),this.extensions.get("WEBGL_compressed_texture_pvrtc")},fh.prototype.supportsBlendMinMax=function(){return console.warn("THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' )."),this.extensions.get("EXT_blend_minmax")},fh.prototype.supportsVertexTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures."),this.capabilities.vertexTextures},fh.prototype.supportsInstancedArrays=function(){return console.warn("THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' )."),this.extensions.get("ANGLE_instanced_arrays")},fh.prototype.enableScissorTest=function(t){console.warn("THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest()."),this.setScissorTest(t)},fh.prototype.initMaterial=function(){console.warn("THREE.WebGLRenderer: .initMaterial() has been removed.")},fh.prototype.addPrePlugin=function(){console.warn("THREE.WebGLRenderer: .addPrePlugin() has been removed.")},fh.prototype.addPostPlugin=function(){console.warn("THREE.WebGLRenderer: .addPostPlugin() has been removed.")},fh.prototype.updateShadowMap=function(){console.warn("THREE.WebGLRenderer: .updateShadowMap() has been removed.")},fh.prototype.setFaceCulling=function(){console.warn("THREE.WebGLRenderer: .setFaceCulling() has been removed.")},fh.prototype.allocTextureUnit=function(){console.warn("THREE.WebGLRenderer: .allocTextureUnit() has been removed.")},fh.prototype.setTexture=function(){console.warn("THREE.WebGLRenderer: .setTexture() has been removed.")},fh.prototype.setTexture2D=function(){console.warn("THREE.WebGLRenderer: .setTexture2D() has been removed.")},fh.prototype.setTextureCube=function(){console.warn("THREE.WebGLRenderer: .setTextureCube() has been removed.")},fh.prototype.getActiveMipMapLevel=function(){return console.warn("THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel()."),this.getActiveMipmapLevel()},Object.defineProperties(fh.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled."),this.shadowMap.enabled=t}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type."),this.shadowMap.type=t}},shadowMapCullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")}},context:{get:function(){return console.warn("THREE.WebGLRenderer: .context has been removed. Use .getContext() instead."),this.getContext()}},vr:{get:function(){return console.warn("THREE.WebGLRenderer: .vr has been renamed to .xr"),this.xr}},gammaInput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead."),!1},set:function(){console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.")}},gammaOutput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),!1},set:function(t){console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),this.outputEncoding=!0===t?Ye:Xe}},toneMappingWhitePoint:{get:function(){return console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed."),1},set:function(){console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.")}}}),Object.defineProperties(sh.prototype,{cullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")}},renderReverseSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")}},renderSingleSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")}}}),Object.defineProperties(jn.prototype,{wrapS:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS=t}},wrapT:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT=t}},magFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter=t}},minFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter=t}},anisotropy:{get:function(){return console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy},set:function(t){console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy=t}},offset:{get:function(){return console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset},set:function(t){console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset=t}},repeat:{get:function(){return console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat},set:function(t){console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat=t}},format:{get:function(){return console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format},set:function(t){console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format=t}},type:{get:function(){return console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type},set:function(t){console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type=t}},generateMipmaps:{get:function(){return console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps},set:function(t){console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps=t}}}),Object.defineProperties(jm.prototype,{load:{value:function(t){console.warn("THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.");const e=this;return(new Dm).load(t,function(t){e.setBuffer(t)}),this}},startTime:{set:function(){console.warn("THREE.Audio: .startTime is now .play( delay ).")}}}),Qm.prototype.getData=function(){return console.warn("THREE.AudioAnalyser: .getData() is now .getFrequencyData()."),this.getFrequencyData()},_s.prototype.updateCubeMap=function(t,e){return console.warn("THREE.CubeCamera: .updateCubeMap() is now .update()."),this.update(t,e)},_s.prototype.clear=function(t,e,n,r){return console.warn("THREE.CubeCamera: .clear() is now .renderTarget.clear()."),this.renderTarget.clear(t,e,n,r)},Hn.crossOrigin=void 0,Hn.loadTexture=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.");const i=new vd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadTextureCube=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.");const i=new gd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadCompressedTexture=function(){console.error("THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.")},Hn.loadCompressedTextureCube=function(){console.error("THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.")};const xx={createMultiMaterialObject:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},detach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")},attach:function(){console.error("THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js")}};function vx(){console.error("THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js")}exports.SceneUtils=xx,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("register",{detail:{revision:"126"}})),"undefined"!=typeof window&&(window.__THREE__?console.warn("WARNING: Multiple instances of Three.js being imported."):window.__THREE__="126");
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@@ -541,15 +541,15 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -561,15 +561,18 @@ var t=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="fu
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. 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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
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e,r,s,t,o,i,n,u,a,d=y(require("stats.js/src/Stats")),c=q(require("dat.gui")),l=q(require("three")),m=require("three/examples/jsm/controls/OrbitControls.js"),p=require("three/examples/jsm/utils/BufferGeometryUtils.js"),j=require("../src/index.js");function f(){if("function"!=typeof WeakMap)return null;var e=new WeakMap;return f=function(){return e},e}function q(e){if(e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=f();if(r&&r.has(e))return r.get(e);var s={},t=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if(Object.prototype.hasOwnProperty.call(e,o)){var i=t?Object.getOwnPropertyDescriptor(e,o):null;i&&(i.get||i.set)?Object.defineProperty(s,o,i):s[o]=e[o]}return s.default=e,r&&r.set(e,s),s}function y(e){return e&&e.__esModule?e:{default:e}}l.Mesh.prototype.raycast=j.acceleratedRaycast,l.BufferGeometry.prototype.computeBoundsTree=j.computeBoundsTree,l.BufferGeometry.prototype.disposeBoundsTree=j.disposeBoundsTree;var g,w=new l.Vector3(0,0,1),h=!1,b=new l.Vector2,v=new l.Vector2,x=!1,S=!1,B=new l.Vector3,M={size:.1,brush:"clay",intensity:50,maxSteps:10,invert:!1,symmetrical:!0,flatShading:!1,depth:10,displayHelper:!1};function z(){i&&(i.geometry.dispose(),i.material.dispose(),r.remove(i)),g||(g=(new l.TextureLoader).load("../textures/skinHazardousarts2.jpg"));var e=new l.IcosahedronBufferGeometry(1,100);e.deleteAttribute("uv"),(e=p.BufferGeometryUtils.mergeVertices(e)).attributes.position.setUsage(l.DynamicDrawUsage),e.attributes.normal.setUsage(l.DynamicDrawUsage),e.computeBoundsTree({setBoundingBox:!1}),(i=new l.Mesh(e,new l.MeshMatcapMaterial({flatShading:M.flatShading,matcap:g}))).material.matcap.encoding=l.sRGBEncoding,i.frustumCulled=!1,r.add(i),a||(a=new j.MeshBVHVisualizer(i,M.depth),M.displayHelper&&r.add(a)),a.mesh=i,a.update()}function E(){(t=new l.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),t.setSize(window.innerWidth,window.innerHeight),t.setClearColor(1251612,1),t.gammaOutput=!0,document.body.appendChild(t.domElement),t.domElement.style.touchAction="none",(r=new l.Scene).fog=new l.Fog(1251612,20,60);var p=new l.DirectionalLight(16777215,.5);p.position.set(1,1,1),r.add(p),r.add(new l.AmbientLight(16777215,.4)),z();for(var j=[new l.Vector3,new l.Vector3(0,0,1)],f=0;f<50;f++){var q=f+1,y=Math.sin(2*Math.PI*f/50),g=Math.cos(2*Math.PI*f/50),w=Math.sin(2*Math.PI*q/50),v=Math.cos(2*Math.PI*q/50);j.push(new l.Vector3(y,g,0),new l.Vector3(w,v,0))}(n=new l.LineSegments).geometry.setFromPoints(j),n.material.color.set(16485376),r.add(n),u=n.clone(),r.add(u),(s=new l.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,3),s.far=100,s.updateProjectionMatrix(),e=new d.default,document.body.appendChild(e.dom);var S=new c.GUI,B=S.addFolder("Sculpting");B.add(M,"brush",["normal","clay","flatten"]),B.add(M,"size").min(.025).max(.25).step(.005),B.add(M,"intensity").min(1).max(100).step(1),B.add(M,"maxSteps").min(1).max(25).step(1),B.add(M,"symmetrical"),B.add(M,"invert"),B.add(M,"flatShading").onChange(function(e){i.material.flatShading=e,i.material.needsUpdate=!0}),B.open();var E=S.addFolder("BVH Helper");E.add(M,"depth").min(1).max(20).step(1).onChange(function(e){a.depth=parseFloat(e),a.update()}),E.add(M,"displayHelper").onChange(function(e){e?(r.add(a),a.update()):r.remove(a)}),E.open(),S.add({reset:z},"reset"),S.add({rebuildBVH:function(){i.geometry.computeBoundsTree({setBoundingBox:!1}),a.update()}},"rebuildBVH"),S.open(),window.addEventListener("resize",function(){s.aspect=window.innerWidth/window.innerHeight,s.updateProjectionMatrix(),t.setSize(window.innerWidth,window.innerHeight)},!1),window.addEventListener("pointermove",function(e){b.x=e.clientX/window.innerWidth*2-1,b.y=-e.clientY/window.innerHeight*2+1,h=!0}),window.addEventListener("pointerdown",function(e){b.x=e.clientX/window.innerWidth*2-1,b.y=-e.clientY/window.innerHeight*2+1,x=Boolean(1&e.buttons),h=!0;var r=new l.Raycaster;r.setFromCamera(b,s),r.firstHitOnly=!0;var t=r.intersectObject(i);o.enabled=0===t.length},!0),window.addEventListener("pointerup",function(e){x=Boolean(1&e.buttons),"touch"===e.pointerType&&(h=!1)}),window.addEventListener("contextmenu",function(e){e.preventDefault()}),window.addEventListener("wheel",function(e){var r=e.deltaY;1===e.deltaMode&&(r*=40),2===e.deltaMode&&(r*=40),M.size+=1e-4*r,M.size=Math.max(Math.min(M.size,.25),.025),S.updateDisplay()}),(o=new m.OrbitControls(s,t.domElement)).minDistance=1.5,o.addEventListener("start",function(){this.active=!0}),o.addEventListener("end",function(){this.active=!1})}function T(e,r){var s=arguments.length>2&&void 0!==arguments[2]&&arguments[2],t=arguments.length>3&&void 0!==arguments[3]?arguments[3]:{},o=t.accumulatedTriangles,n=void 0===o?new Set:o,u=t.accumulatedIndices,a=void 0===u?new Set:u,d=t.accumulatedTraversedNodeIndices,c=void 0===d?new Set:d,m=t.accumulatedEndNodeIndices,p=void 0===m?new Set:m,f=new l.Matrix4;f.copy(i.matrixWorld).invert();var q=new l.Sphere;q.center.copy(e).applyMatrix4(f),q.radius=M.size;var y=new Set,g=new l.Vector3,h=new l.Vector3,b=i.geometry.index,v=i.geometry.attributes.position,x=i.geometry.attributes.normal,S=new Set;i.geometry.boundsTree.shapecast(i,{intersectsBounds:function(e,r,s,t,o){c.add(o);var i=q.intersectsBox(e),n=e.min,u=e.max;if(i){for(var a=0;a<=1;a++)for(var d=0;d<=1;d++)for(var l=0;l<=1;l++)if(g.set(0===a?n.x:u.x,0===d?n.y:u.y,0===l?n.z:u.z),!q.containsPoint(g))return j.INTERSECTED;return j.CONTAINED}return i?j.INTERSECTED:j.NOT_INTERSECTED},intersectsRange:function(e,r,s,t,o){p.add(o)},intersectsTriangle:function(e,r,s){var t=r;S.add(t),n.add(t);var o=3*r,i=o+0,u=o+1,d=o+2,c=b.getX(i),l=b.getX(u),m=b.getX(d);return s?(y.add(c),y.add(l),y.add(m),a.add(c),a.add(l),a.add(m)):(q.containsPoint(e.a)&&(y.add(c),a.add(c)),q.containsPoint(e.b)&&(y.add(l),a.add(l)),q.containsPoint(e.c)&&(y.add(m),a.add(m))),!1}});var B=new l.Vector3;B.copy(e).applyMatrix4(f);var z=new l.Vector3,E=0;if(y.forEach(function(e){g.fromBufferAttribute(x,e),h.add(g),s||(E++,g.fromBufferAttribute(v,e),z.add(g))}),h.normalize(),r.quaternion.setFromUnitVectors(w,h),E&&z.multiplyScalar(1/E),!s){var T=1e-4*M.intensity,P=new l.Plane;P.setFromNormalAndCoplanarPoint(h,z),y.forEach(function(e){g.fromBufferAttribute(v,e);var r=g.distanceTo(B),s=M.invert?-1:1,t=1-r/M.size;if("clay"===M.brush){t=Math.pow(t,3);var o=P.distanceToPoint(g),i=s*Math.min(4*t,1);g.addScaledVector(h,i*T-s*o*i*.3)}else if("normal"===M.brush)t=Math.pow(t,2),g.addScaledVector(h,s*t*T);else if("flatten"===M.brush){t=Math.pow(t,2);var n=P.distanceToPoint(g);g.addScaledVector(h,-n*t*M.intensity*.01*.5)}v.setXYZ(e,g.x,g.y,g.z),x.setXYZ(e,0,0,0)}),y.size&&(v.needsUpdate=!0)}}function P(e,r){var s=new l.Vector3,t=new l.Vector3,o=i.geometry.index,n=i.geometry.attributes.position,u=i.geometry.attributes.normal,a=new l.Triangle;e.forEach(function(e){var 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l.Vector3,E=0;if(y.forEach(function(e){g.fromBufferAttribute(x,e),h.add(g),s||(E++,g.fromBufferAttribute(v,e),z.add(g))}),h.normalize(),r.quaternion.setFromUnitVectors(w,h),E&&z.multiplyScalar(1/E),!s){var T=1e-4*M.intensity,P=new l.Plane;P.setFromNormalAndCoplanarPoint(h,z),y.forEach(function(e){g.fromBufferAttribute(v,e);var r=g.distanceTo(B),s=M.invert?-1:1,t=1-r/M.size;if("clay"===M.brush){t=Math.pow(t,3);var o=P.distanceToPoint(g),i=s*Math.min(4*t,1);g.addScaledVector(h,i*T-s*o*i*.3)}else if("normal"===M.brush)t=Math.pow(t,2),g.addScaledVector(h,s*t*T);else if("flatten"===M.brush){t=Math.pow(t,2);var n=P.distanceToPoint(g);g.addScaledVector(h,-n*t*M.intensity*.01*.5)}v.setXYZ(e,g.x,g.y,g.z),x.setXYZ(e,0,0,0)}),y.size&&(v.needsUpdate=!0)}}function P(e,r){var s=new l.Vector3,t=new l.Vector3,o=i.geometry.index,n=i.geometry.attributes.position,a=i.geometry.attributes.normal,u=new l.Triangle;e.forEach(function(e){var 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index 181dffa82..b8df13574 100644
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be(e){0!==e.length&&U.call(window,function(){be(e)}),i.each(e,function(e){e.updateDisplay()})}oe.toggleHide=function(){te=!te,i.each(ne,function(e){e.domElement.style.display=te?"none":""})},oe.CLASS_AUTO_PLACE="a",oe.CLASS_AUTO_PLACE_CONTAINER="ac",oe.CLASS_MAIN="main",oe.CLASS_CONTROLLER_ROW="cr",oe.CLASS_TOO_TALL="taller-than-window",oe.CLASS_CLOSED="closed",oe.CLASS_CLOSE_BUTTON="close-button",oe.CLASS_CLOSE_TOP="close-top",oe.CLASS_CLOSE_BOTTOM="close-bottom",oe.CLASS_DRAG="drag",oe.DEFAULT_WIDTH=245,oe.TEXT_CLOSED="Close Controls",oe.TEXT_OPEN="Open Controls",oe._keydownHandler=function(e){"text"===document.activeElement.type||e.which!==J&&e.keyCode!==J||oe.toggleHide()},A.bind(window,"keydown",oe._keydownHandler,!1),i.extend(oe.prototype,{add:function(e,t){return de(this,e,t,{factoryArgs:Array.prototype.slice.call(arguments,2)})},addColor:function(e,t){return de(this,e,t,{color:!0})},remove:function(e){this.__ul.removeChild(e.__li),this.__controllers.splice(this.__controllers.indexOf(e),1);var t=this;i.defer(function(){t.onResize()})},destroy:function(){if(this.parent)throw new Error("Only the root GUI should be removed with .destroy(). For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
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b(e,t,n){Object.defineProperty(e,t,{get:function(){return"RGB"===this.__state.space?this.__state[t]:(g.recalculateRGB(this,t,n),this.__state[t])},set:function(e){"RGB"!==this.__state.space&&(g.recalculateRGB(this,t,n),this.__state.space="RGB"),this.__state[t]=e}})}function v(e,t){Object.defineProperty(e,t,{get:function(){return"HSV"===this.__state.space?this.__state[t]:(g.recalculateHSV(this),this.__state[t])},set:function(e){"HSV"!==this.__state.space&&(g.recalculateHSV(this),this.__state.space="HSV"),this.__state[t]=e}})}g.recalculateRGB=function(e,t,n){if("HEX"===e.__state.space)e.__state[t]=c.component_from_hex(e.__state.hex,n);else{if("HSV"!==e.__state.space)throw new Error("Corrupted color state");i.extend(e.__state,c.hsv_to_rgb(e.__state.h,e.__state.s,e.__state.v))}},g.recalculateHSV=function(e){var t=c.rgb_to_hsv(e.r,e.g,e.b);i.extend(e.__state,{s:t.s,v:t.v}),i.isNaN(t.h)?i.isUndefined(e.__state.h)&&(e.__state.h=0):e.__state.h=t.h},g.COMPONENTS=["r","g","b","h","s","v","hex","a"],b(g.prototype,"r",2),b(g.prototype,"g",1),b(g.prototype,"b",0),v(g.prototype,"h"),v(g.prototype,"s"),v(g.prototype,"v"),Object.defineProperty(g.prototype,"a",{get:function(){return this.__state.a},set:function(e){this.__state.a=e}}),Object.defineProperty(g.prototype,"hex",{get:function(){return"HEX"!==this.__state.space&&(this.__state.hex=c.rgb_to_hex(this.r,this.g,this.b),this.__state.space="HEX"),this.__state.hex},set:function(e){this.__state.space="HEX",this.__state.hex=e}});var y=function(){function e(t,n){_(this,e),this.initialValue=t[n],this.domElement=document.createElement("div"),this.object=t,this.property=n,this.__onChange=void 0,this.__onFinishChange=void 0}return h(e,[{key:"onChange",value:function(e){return this.__onChange=e,this}},{key:"onFinishChange",value:function(e){return this.__onFinishChange=e,this}},{key:"setValue",value:function(e){return this.object[this.property]=e,this.__onChange&&this.__onChange.call(this,e),this.updateDisplay(),this}},{key:"getValue",value:function(){return this.object[this.property]}},{key:"updateDisplay",value:function(){return this}},{key:"isModified",value:function(){return this.initialValue!==this.getValue()}}]),e}(),w={HTMLEvents:["change"],MouseEvents:["click","mousemove","mousedown","mouseup","mouseover"],KeyboardEvents:["keydown"]},x={};i.each(w,function(e,t){i.each(e,function(e){x[e]=t})});var E=/(\d+(\.\d+)?)px/;function C(e){if("0"===e||i.isUndefined(e))return 0;var t=e.match(E);return i.isNull(t)?0:parseFloat(t[1])}var A={makeSelectable:function(e,t){void 0!==e&&void 0!==e.style&&(e.onselectstart=t?function(){return!1}:function(){},e.style.MozUserSelect=t?"auto":"none",e.style.KhtmlUserSelect=t?"auto":"none",e.unselectable=t?"on":"off")},makeFullscreen:function(e,t,n){var o=n,r=t;i.isUndefined(r)&&(r=!0),i.isUndefined(o)&&(o=!0),e.style.position="absolute",r&&(e.style.left=0,e.style.right=0),o&&(e.style.top=0,e.style.bottom=0)},fakeEvent:function(e,t,n,o){var r=n||{},s=x[t];if(!s)throw new Error("Event type "+t+" not supported.");var a=document.createEvent(s);switch(s){case"MouseEvents":var l=r.x||r.clientX||0,d=r.y||r.clientY||0;a.initMouseEvent(t,r.bubbles||!1,r.cancelable||!0,window,r.clickCount||1,0,0,l,d,!1,!1,!1,!1,0,null);break;case"KeyboardEvents":var c=a.initKeyboardEvent||a.initKeyEvent;i.defaults(r,{cancelable:!0,ctrlKey:!1,altKey:!1,shiftKey:!1,metaKey:!1,keyCode:void 0,charCode:void 0}),c(t,r.bubbles||!1,r.cancelable,window,r.ctrlKey,r.altKey,r.shiftKey,r.metaKey,r.keyCode,r.charCode);break;default:a.initEvent(t,r.bubbles||!1,r.cancelable||!0)}i.defaults(a,o),e.dispatchEvent(a)},bind:function(e,t,n,o){var i=o||!1;return e.addEventListener?e.addEventListener(t,n,i):e.attachEvent&&e.attachEvent("on"+t,n),A},unbind:function(e,t,n,o){var 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t&&o.appendChild(t),n?e.__ul.insertBefore(o,n):e.__ul.appendChild(o),e.onResize(),o}function re(e){A.unbind(window,"resize",e.__resizeHandler),e.saveToLocalStorageIfPossible&&A.unbind(window,"unload",e.saveToLocalStorageIfPossible)}function se(e,t){var n=e.__preset_select[e.__preset_select.selectedIndex];n.innerHTML=t?n.value+"*":n.value}function ae(e,t,n){if(n.__li=t,n.__gui=e,i.extend(n,{options:function(t){if(arguments.length>1){var o=n.__li.nextElementSibling;return n.remove(),de(e,n.object,n.property,{before:o,factoryArgs:[i.toArray(arguments)]})}if(i.isArray(t)||i.isObject(t)){var r=n.__li.nextElementSibling;return n.remove(),de(e,n.object,n.property,{before:r,factoryArgs:[t]})}},name:function(e){return n.__li.firstElementChild.firstElementChild.innerHTML=e,n},listen:function(){return n.__gui.listen(n),n},remove:function(){return n.__gui.remove(n),n}}),n instanceof H){var o=new B(n.object,n.property,{min:n.__min,max:n.__max,step:n.__step});i.each(["updateDisplay","onChange","onFinishChange","step","min","max"],function(e){var t=n[e],i=o[e];n[e]=o[e]=function(){var e=Array.prototype.slice.call(arguments);return i.apply(o,e),t.apply(n,e)}}),A.addClass(t,"has-slider"),n.domElement.insertBefore(o.domElement,n.domElement.firstElementChild)}else if(n instanceof B){var r=function(t){if(i.isNumber(n.__min)&&i.isNumber(n.__max)){var o=n.__li.firstElementChild.firstElementChild.innerHTML,r=n.__gui.__listening.indexOf(n)>-1;n.remove();var s=de(e,n.object,n.property,{before:n.__li.nextElementSibling,factoryArgs:[n.__min,n.__max,n.__step]});return s.name(o),r&&s.listen(),s}return t};n.min=i.compose(r,n.min),n.max=i.compose(r,n.max)}else n instanceof k?(A.bind(t,"click",function(){A.fakeEvent(n.__checkbox,"click")}),A.bind(n.__checkbox,"click",function(e){e.stopPropagation()})):n instanceof 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E.theta},this.listenToKeyEvents=function(e){e.addEventListener("keydown",Q),this._domElementKeyEvents=e},this.saveState=function(){u.target0.copy(u.target),u.position0.copy(u.object.position),u.zoom0=u.object.zoom},this.reset=function(){u.target.copy(u.target0),u.object.position.copy(u.position0),u.object.zoom=u.zoom0,u.object.updateProjectionMatrix(),u.dispatchEvent(l),u.update(),d=h.NONE},this.update=(o=new e.Vector3,a=(new e.Quaternion).setFromUnitVectors(t.up,new e.Vector3(0,1,0)),i=a.clone().invert(),r=new e.Vector3,c=new e.Quaternion,s=2*Math.PI,function(){var e=u.object.position;o.copy(e).sub(u.target),o.applyQuaternion(a),E.setFromVector3(o),u.autoRotate&&d===h.NONE&&R(2*Math.PI/60/60*u.autoRotateSpeed),u.enableDamping?(E.theta+=f.theta*u.dampingFactor,E.phi+=f.phi*u.dampingFactor):(E.theta+=f.theta,E.phi+=f.phi);var t=u.minAzimuthAngle,n=u.maxAzimuthAngle;return isFinite(t)&&isFinite(n)&&(t<-Math.PI?t+=s:t>Math.PI&&(t-=s),n<-Math.PI?n+=s:n>Math.PI&&(n-=s),E.theta=t<=n?Math.max(t,Math.min(n,E.theta)):E.theta>(t+n)/2?Math.max(t,E.theta):Math.min(n,E.theta)),E.phi=Math.max(u.minPolarAngle,Math.min(u.maxPolarAngle,E.phi)),E.makeSafe(),E.radius*=O,E.radius=Math.max(u.minDistance,Math.min(u.maxDistance,E.radius)),!0===u.enableDamping?u.target.addScaledVector(g,u.dampingFactor):u.target.add(g),o.setFromSpherical(E),o.applyQuaternion(i),e.copy(u.target).add(o),u.object.lookAt(u.target),!0===u.enableDamping?(f.theta*=1-u.dampingFactor,f.phi*=1-u.dampingFactor,g.multiplyScalar(1-u.dampingFactor)):(f.set(0,0,0),g.set(0,0,0)),O=1,!!(v||r.distanceToSquared(u.object.position)>b||8*(1-c.dot(u.object.quaternion))>b)&&(u.dispatchEvent(l),r.copy(u.object.position),c.copy(u.object.quaternion),v=!1,!0)}),this.dispose=function(){u.domElement.removeEventListener("contextmenu",te),u.domElement.removeEventListener("pointerdown",B),u.domElement.removeEventListener("wheel",q),u.domElement.removeEventListener("touchstart",J),u.domElement.removeEventListener("touchend",ee),u.domElement.removeEventListener("touchmove",$),u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),null!==u._domElementKeyEvents&&u._domElementKeyEvents.removeEventListener("keydown",Q)};var u=this,l={type:"change"},m={type:"start"},p={type:"end"},h={NONE:-1,ROTATE:0,DOLLY:1,PAN:2,TOUCH_ROTATE:3,TOUCH_PAN:4,TOUCH_DOLLY_PAN:5,TOUCH_DOLLY_ROTATE:6},d=h.NONE,b=1e-6,E=new e.Spherical,f=new e.Spherical,O=1,g=new e.Vector3,v=!1,T=new e.Vector2,y=new e.Vector2,P=new e.Vector2,L=new e.Vector2,w=new e.Vector2,A=new e.Vector2,N=new e.Vector2,M=new e.Vector2,j=new e.Vector2;function D(){return Math.pow(.95,u.zoomSpeed)}function R(e){f.theta-=e}function S(e){f.phi-=e}var k,C=(k=new e.Vector3,function(e,t){k.setFromMatrixColumn(t,0),k.multiplyScalar(-e),g.add(k)}),Y=function(){var t=new e.Vector3;return function(e,n){!0===u.screenSpacePanning?t.setFromMatrixColumn(n,1):(t.setFromMatrixColumn(n,0),t.crossVectors(u.object.up,t)),t.multiplyScalar(e),g.add(t)}}(),x=function(){var t=new e.Vector3;return function(e,n){var o=u.domElement;if(u.object.isPerspectiveCamera){var a=u.object.position;t.copy(a).sub(u.target);var i=t.length();i*=Math.tan(u.object.fov/2*Math.PI/180),C(2*e*i/o.clientHeight,u.object.matrix),Y(2*n*i/o.clientHeight,u.object.matrix)}else u.object.isOrthographicCamera?(C(e*(u.object.right-u.object.left)/u.object.zoom/o.clientWidth,u.object.matrix),Y(n*(u.object.top-u.object.bottom)/u.object.zoom/o.clientHeight,u.object.matrix)):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - pan disabled."),u.enablePan=!1)}}();function H(e){u.object.isPerspectiveCamera?O/=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom*e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function U(e){u.object.isPerspectiveCamera?O*=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom/e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function _(e){T.set(e.clientX,e.clientY)}function V(e){L.set(e.clientX,e.clientY)}function z(e){if(1==e.touches.length)T.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);T.set(t,n)}}function I(e){if(1==e.touches.length)L.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);L.set(t,n)}}function X(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);N.set(0,o)}function F(e){if(1==e.touches.length)y.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);y.set(t,n)}P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var o=u.domElement;R(2*Math.PI*P.x/o.clientHeight),S(2*Math.PI*P.y/o.clientHeight),T.copy(y)}function Z(e){if(1==e.touches.length)w.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);w.set(t,n)}A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w)}function K(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);M.set(0,o),j.set(0,Math.pow(M.y/N.y,u.zoomSpeed)),H(j.y),N.copy(M)}function B(t){if(!1!==u.enabled)switch(t.pointerType){case"mouse":case"pen":!function(t){var n;switch(t.preventDefault(),u.domElement.focus?u.domElement.focus():window.focus(),t.button){case 0:n=u.mouseButtons.LEFT;break;case 1:n=u.mouseButtons.MIDDLE;break;case 2:n=u.mouseButtons.RIGHT;break;default:n=-1}switch(n){case e.MOUSE.DOLLY:if(!1===u.enableZoom)return;!function(e){N.set(e.clientX,e.clientY)}(t),d=h.DOLLY;break;case e.MOUSE.ROTATE:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enablePan)return;V(t),d=h.PAN}else{if(!1===u.enableRotate)return;_(t),d=h.ROTATE}break;case e.MOUSE.PAN:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enableRotate)return;_(t),d=h.ROTATE}else{if(!1===u.enablePan)return;V(t),d=h.PAN}break;default:d=h.NONE}d!==h.NONE&&(u.domElement.ownerDocument.addEventListener("pointermove",G),u.domElement.ownerDocument.addEventListener("pointerup",W),u.dispatchEvent(m))}(t)}}function G(e){if(!1!==u.enabled)switch(e.pointerType){case"mouse":case"pen":!function(e){if(!1===u.enabled)return;switch(e.preventDefault(),d){case h.ROTATE:if(!1===u.enableRotate)return;!function(e){y.set(e.clientX,e.clientY),P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var t=u.domElement;R(2*Math.PI*P.x/t.clientHeight),S(2*Math.PI*P.y/t.clientHeight),T.copy(y),u.update()}(e);break;case h.DOLLY:if(!1===u.enableZoom)return;!function(e){M.set(e.clientX,e.clientY),j.subVectors(M,N),j.y>0?H(D()):j.y<0&&U(D()),N.copy(M),u.update()}(e);break;case h.PAN:if(!1===u.enablePan)return;!function(e){w.set(e.clientX,e.clientY),A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w),u.update()}(e)}}(e)}}function W(e){switch(e.pointerType){case"mouse":case"pen":!function(e){if(u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),!1===u.enabled)return;u.dispatchEvent(p),d=h.NONE}()}}function q(e){!1===u.enabled||!1===u.enableZoom||d!==h.NONE&&d!==h.ROTATE||(e.preventDefault(),e.stopPropagation(),u.dispatchEvent(m),function(e){e.deltaY<0?U(D()):e.deltaY>0&&H(D()),u.update()}(e),u.dispatchEvent(p))}function Q(e){!1!==u.enabled&&!1!==u.enablePan&&function(e){var t=!1;switch(e.keyCode){case u.keys.UP:x(0,u.keyPanSpeed),t=!0;break;case u.keys.BOTTOM:x(0,-u.keyPanSpeed),t=!0;break;case u.keys.LEFT:x(u.keyPanSpeed,0),t=!0;break;case u.keys.RIGHT:x(-u.keyPanSpeed,0),t=!0}t&&(e.preventDefault(),u.update())}(e)}function J(t){if(!1!==u.enabled){switch(t.preventDefault(),t.touches.length){case 1:switch(u.touches.ONE){case e.TOUCH.ROTATE:if(!1===u.enableRotate)return;z(t),d=h.TOUCH_ROTATE;break;case e.TOUCH.PAN:if(!1===u.enablePan)return;I(t),d=h.TOUCH_PAN;break;default:d=h.NONE}break;case 2:switch(u.touches.TWO){case e.TOUCH.DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&X(e),u.enablePan&&I(e)}(t),d=h.TOUCH_DOLLY_PAN;break;case e.TOUCH.DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&X(e),u.enableRotate&&z(e)}(t),d=h.TOUCH_DOLLY_ROTATE;break;default:d=h.NONE}break;default:d=h.NONE}d!==h.NONE&&u.dispatchEvent(m)}}function $(e){if(!1!==u.enabled)switch(e.preventDefault(),e.stopPropagation(),d){case h.TOUCH_ROTATE:if(!1===u.enableRotate)return;F(e),u.update();break;case h.TOUCH_PAN:if(!1===u.enablePan)return;Z(e),u.update();break;case h.TOUCH_DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&K(e),u.enablePan&&Z(e)}(e),u.update();break;case h.TOUCH_DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&K(e),u.enableRotate&&F(e)}(e),u.update();break;default:d=h.NONE}}function ee(e){!1!==u.enabled&&(u.dispatchEvent(p),d=h.NONE)}function te(e){!1!==u.enabled&&e.preventDefault()}u.domElement.addEventListener("contextmenu",te),u.domElement.addEventListener("pointerdown",B),u.domElement.addEventListener("wheel",q),u.domElement.addEventListener("touchstart",J),u.domElement.addEventListener("touchend",ee),u.domElement.addEventListener("touchmove",$),this.update()};exports.OrbitControls=t,t.prototype=Object.create(e.EventDispatcher.prototype),t.prototype.constructor=t;var n=function(n,o){t.call(this,n,o),this.screenSpacePanning=!1,this.mouseButtons.LEFT=e.MOUSE.PAN,this.mouseButtons.RIGHT=e.MOUSE.ROTATE,this.touches.ONE=e.TOUCH.PAN,this.touches.TWO=e.TOUCH.DOLLY_ROTATE};exports.MapControls=n,n.prototype=Object.create(e.EventDispatcher.prototype),n.prototype.constructor=n;
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -34,9 +34,9 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"jNwr":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.default=void 0;var t=require("three"),e=require("./Utils/ArrayBoxUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e,r){return(o="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,e,r){var o=n(t,e);if(o){var i=Object.getOwnPropertyDescriptor(o,e);return i.get?i.get.call(r):i.value}})(t,e,r||t)}function n(t,e){for(;!Object.prototype.hasOwnProperty.call(t,e)&&null!==(t=y(t)););return t}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function u(t,e){for(var r=0;r<e.length;r++){var o=e[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}function s(t,e,r){return e&&u(t.prototype,e),r&&u(t,r),t}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&a(t,e)}function a(t,e){return(a=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function l(t){var e=p();return function(){var r,o=y(t);if(e){var n=y(this).constructor;r=Reflect.construct(o,arguments,n)}else r=o.apply(this,arguments);return f(this,r)}}function f(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?h(t):e}function h(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function p(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function y(t){return(y=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var d=new t.LineBasicMaterial({color:65416,transparent:!0,opacity:.3}),v=(new t.Box3Helper).geometry,m=new t.Box3,b=function(r){c(n,t.Group);var o=l(n);function n(t){var e,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return i(this,n),(e=o.call(this,"MeshBVHRootVisualizer")).depth=r,e.mesh=t,e._group=u,e.update(),e}return s(n,[{key:"update",value:function(){var r=this,o=this.mesh.geometry.boundsTree,n=0;for(o&&o.traverse(function(o,i,u,s,c){var a=i||c;if(o>=r.depth)return!0;if(o===r.depth-1||a){var l=n<r.children.length?r.children[n]:null;l||((l=new t.LineSegments(v,d)).raycast=function(){return[]},r.add(l)),n++,(0,e.arrayToBox)(u,m),m.getCenter(l.position),l.scale.subVectors(m.max,m.min).multiplyScalar(.5),0===l.scale.x&&(l.scale.x=Number.EPSILON),0===l.scale.y&&(l.scale.y=Number.EPSILON),0===l.scale.z&&(l.scale.z=Number.EPSILON)}});this.children.length>n;)this.remove(this.children.pop())}}]),n}(),g=function(e){c(n,t.Group);var r=l(n);function n(t){var e,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;return i(this,n),(e=r.call(this,"MeshBVHVisualizer")).depth=o,e.mesh=t,e._roots=[],e.update(),e}return s(n,[{key:"update",value:function(){for(var t=this.mesh.geometry.boundsTree,e=t?t._roots.length:0;this._roots.length>e;)this._roots.pop();for(var r=0;r<e;r++)if(r>=this._roots.length){var o=new b(this.mesh,this.depth,r);this.add(o),this._roots.push(o)}else{var n=this._roots[r];n.depth=this.depth,n.mesh=this.mesh,n.update()}}},{key:"updateMatrixWorld",value:function(){var t;this.position.copy(this.mesh.position),this.rotation.copy(this.mesh.rotation),this.scale.copy(this.mesh.scale);for(var e=arguments.length,r=new Array(e),i=0;i<e;i++)r[i]=arguments[i];(t=o(y(n.prototype),"updateMatrixWorld",this)).call.apply(t,[this].concat(r))}},{key:"copy",value:function(t){this.depth=t.depth,this.mesh=t.mesh}},{key:"clone",value:function(){return new n(this.mesh,this.depth)}}]),n}(),O=g;exports.default=O;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
@@ -44,5 +44,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
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a=3*(b.length/3-1),i=!1;if(b.length>3)H.set(b[a-3],b[a-3+1]),P.set(b[a],b[a+1]),P.sub(H).normalize(),H.set(b[a],b[a+1]),N.set(n,o),N.sub(H).normalize(),i=P.dot(N)>.99;i?(b[a]=n,b[a+1]=o):b.push(n,o,0),T=!0,h.visible=!0,W=t,D=r,x.liveUpdate&&(O=!0)}}}),window.addEventListener("resize",function(){s.aspect=window.innerWidth/window.innerHeight,s.updateProjectionMatrix(),l.setSize(window.innerWidth,window.innerHeight)},!1)}function B(){if(p.update(),requestAnimationFrame(B),y.material.wireframe=x.wireframe,w.visible=x.displayHelper,T){if("lasso"===x.toolMode){var t=b.length;b.push(b[0],b[1],b[2]),h.geometry.setAttribute("position",new e.Float32BufferAttribute(b,3,!1)),b.length=t}else h.geometry.setAttribute("position",new e.Float32BufferAttribute(b,3,!1));h.frustumCulled=!1,T=!1}O&&(O=!1,b.length>0&&H());var r=Math.tan(e.MathUtils.DEG2RAD*s.fov/2)*h.position.z;h.scale.set(-r*s.aspect,-r,1),l.render(u,s),x.rotate&&(M.rotation.y+=.01,x.liveUpdate&&E&&(O=!0))}S(),B();var C=new e.Matrix4,R=new 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o.NOT_INTERSECTED;var O=P(R),S=O.map(function(e,t){var r=O[(t+1)%O.length],n=A[t];return n.start.copy(e),n.end.copy(r),n});if(U(w[0].start,S)%2==1)return o.INTERSECTED;for(var B=0,H=0,N=O.length;H<N;H++){var z=U(O[H],w);if(0===H&&(B=z),B!==z)return o.INTERSECTED}for(var I=0,L=S.length;I<L;I++)for(var G=S[I],F=0,X=w.length;F<X;F++)if(j(G,w[F]))return o.INTERSECTED;return B%2==0?o.NOT_INTERSECTED:o.CONTAINED},intersectsTriangle:function(e,t,r,n){var o=3*t,a=o+0,i=o+1,l=o+2;if(r)return d.push(a,i,l),x.selectModel;var s=x.useBoundsTree?D[n]:W;if("centroid"===x.selectionMode){var u=e.a.add(e.b).add(e.c).multiplyScalar(1/3);if(u.applyMatrix4(C),U(u,s)%2==1)return d.push(a,i,l),x.selectModel}else if("intersection"===x.selectionMode){for(var c=[e.a,e.b,e.c],p=0;p<3;p++){var f=c[p];if(f.applyMatrix4(C),U(f,s)%2==1)return d.push(a,i,l),x.selectModel}var h=[A[0],A[1],A[2]];h[0].start.copy(e.a),h[0].end.copy(e.b),h[1].start.copy(e.b),h[1].end.copy(e.c),h[2].start.copy(e.c),h[2].end.copy(e.a);for(var y=0;y<3;y++)for(var w=h[y],v=0,m=s.length;v<m;v++)if(j(w,s[v]))return d.push(a,i,l),x.selectModel}return!1}});var l=window.performance.now()-i;g.innerText="".concat(l.toFixed(3),"ms");var u=y.geometry.index,c=v.geometry.index;if(d.length&&x.selectModel){for(var p=0,f=u.count;p<f;p++){var h=u.getX(p);c.setX(p,h)}v.geometry.drawRange.count=1/0,c.needsUpdate=!0}else{for(var w=0,m=d.length;w<m;w++){var M=u.getX(d[w]);c.setX(w,M)}v.geometry.drawRange.count=d.length,c.needsUpdate=!0}}function P(e){function t(e,t,r){var n=(t.y-e.y)*(r.x-t.x)-(t.x-e.x)*(r.y-t.y);return 0==n?0:n>0?1:2}function r(e,t){return(e.x-t.x)*(e.x-t.x)+(e.y-t.y)*(e.y-t.y)}for(var n=1/0,o=-1,a=0,i=e.length;a<i;a++){var d=e[a];d.y<n&&(o=a,n=d.y)}var l=e[o];e[o]=e[0],e[0]=l;for(var s=1,u=(e=e.sort(function(e,n){var o=t(l,e,n);return 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 },{"three":"dKqR","stats.js":"dnrf","dat.gui":"KkZG","three/examples/jsm/controls/OrbitControls.js":"xTGv","../src/index.js":"uBxZ"}]},{},["jNWJ"], null)
\ No newline at end of file
diff --git a/example/bundle/shapecast.b93a7fe2.js b/example/bundle/shapecast.b93a7fe2.js
index 7947e04eb..e1f1de9c4 100644
--- a/example/bundle/shapecast.b93a7fe2.js
+++ b/example/bundle/shapecast.b93a7fe2.js
@@ -2,7 +2,7 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 
 var e=module.exports="undefined"!=typeof window&&window.Math==Math?window:"undefined"!=typeof self&&self.Math==Math?self:Function("return this")();"number"==typeof __g&&(__g=e);
 },{}],"ss9A":[function(require,module,exports) {
-var e=module.exports={version:"2.6.11"};"number"==typeof __e&&(__e=e);
+var e=module.exports={version:"2.6.12"};"number"==typeof __e&&(__e=e);
 },{}],"M7z6":[function(require,module,exports) {
 module.exports=function(o){return"object"==typeof o?null!==o:"function"==typeof o};
 },{}],"eT53":[function(require,module,exports) {
@@ -31,7 +31,7 @@ var o=0,t=Math.random();module.exports=function(n){return"Symbol(".concat(void 0
 module.exports=!1;
 },{}],"zGcK":[function(require,module,exports) {
 
-var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2019 Denis Pushkarev (zloirock.ru)"});
+var r=require("./_core"),e=require("./_global"),o="__core-js_shared__",i=e[o]||(e[o]={});(module.exports=function(r,e){return i[r]||(i[r]=void 0!==e?e:{})})("versions",[]).push({version:r.version,mode:require("./_library")?"pure":"global",copyright:"© 2020 Denis Pushkarev (zloirock.ru)"});
 },{"./_core":"ss9A","./_global":"qf4T","./_library":"H21C"}],"d5RU":[function(require,module,exports) {
 module.exports=require("./_shared")("native-function-to-string",Function.toString);
 },{"./_shared":"zGcK"}],"PHot":[function(require,module,exports) {
@@ -78,7 +78,11 @@ var r=require("./_is-object"),e=require("./_is-array"),o=require("./_wks")("spec
 var r=require("./_array-species-constructor");module.exports=function(e,n){return new(r(e))(n)};
 },{"./_array-species-constructor":"NNbH"}],"AuPh":[function(require,module,exports) {
 var e=require("./_ctx"),r=require("./_iobject"),t=require("./_to-object"),i=require("./_to-length"),u=require("./_array-species-create");module.exports=function(n,c){var s=1==n,a=2==n,o=3==n,f=4==n,l=6==n,q=5==n||l,_=c||u;return function(u,c,h){for(var v,p,b=t(u),d=r(b),g=e(c,h,3),j=i(d.length),x=0,m=s?_(u,j):a?_(u,0):void 0;j>x;x++)if((q||x in d)&&(p=g(v=d[x],x,b),n))if(s)m[x]=p;else if(p)switch(n){case 3:return!0;case 5:return v;case 6:return x;case 2:m.push(v)}else if(f)return!1;return l?-1:o||f?f:m}};
-},{"./_ctx":"E3Kh","./_iobject":"nGau","./_to-object":"rfVX","./_to-length":"dJBs","./_array-species-create":"igas"}],"Qppk":[function(require,module,exports) {
+},{"./_ctx":"E3Kh","./_iobject":"nGau","./_to-object":"rfVX","./_to-length":"dJBs","./_array-species-create":"igas"}],"Hh2M":[function(require,module,exports) {
+"use strict";var l=require("./_fails");module.exports=function(n,u){return!!n&&l(function(){u?n.call(null,function(){},1):n.call(null)})};
+},{"./_fails":"BXiR"}],"GyG6":[function(require,module,exports) {
+"use strict";var r=require("./_export"),e=require("./_array-methods")(2);r(r.P+r.F*!require("./_strict-method")([].filter,!0),"Array",{filter:function(r){return e(this,r,arguments[1])}});
+},{"./_export":"izCb","./_array-methods":"AuPh","./_strict-method":"Hh2M"}],"Qppk":[function(require,module,exports) {
 "use strict";var r=require("./_export"),e=require("./_array-methods")(5),i="find",n=!0;i in[]&&Array(1)[i](function(){n=!1}),r(r.P+r.F*n,"Array",{find:function(r){return e(this,r,arguments.length>1?arguments[1]:void 0)}}),require("./_add-to-unscopables")(i);
 },{"./_export":"izCb","./_array-methods":"AuPh","./_add-to-unscopables":"Z7eD"}],"sVmK":[function(require,module,exports) {
 "use strict";var r=require("./_export"),e=require("./_array-methods")(6),n="findIndex",i=!0;n in[]&&Array(1)[n](function(){i=!1}),r(r.P+r.F*i,"Array",{findIndex:function(r){return e(this,r,arguments.length>1?arguments[1]:void 0)}}),require("./_add-to-unscopables")(n);
@@ -134,20 +138,20 @@ var t=require("./_has"),e=require("./_to-object"),o=require("./_shared-key")("IE
 "use strict";var e=require("./_library"),r=require("./_export"),t=require("./_redefine"),i=require("./_hide"),n=require("./_iterators"),u=require("./_iter-create"),o=require("./_set-to-string-tag"),s=require("./_object-gpo"),a=require("./_wks")("iterator"),c=!([].keys&&"next"in[].keys()),f="@@iterator",l="keys",q="values",y=function(){return this};module.exports=function(_,p,h,k,v,w,d){u(h,p,k);var x,b,g,j=function(e){if(!c&&e in I)return I[e];switch(e){case l:case q:return function(){return new h(this,e)}}return function(){return new h(this,e)}},m=p+" Iterator",A=v==q,F=!1,I=_.prototype,O=I[a]||I[f]||v&&I[v],P=O||j(v),z=v?A?j("entries"):P:void 0,B="Array"==p&&I.entries||O;if(B&&(g=s(B.call(new _)))!==Object.prototype&&g.next&&(o(g,m,!0),e||"function"==typeof g[a]||i(g,a,y)),A&&O&&O.name!==q&&(F=!0,P=function(){return O.call(this)}),e&&!d||!c&&!F&&I[a]||i(I,a,P),n[p]=P,n[m]=y,v)if(x={values:A?P:j(q),keys:w?P:j(l),entries:z},d)for(b in x)b in I||t(I,b,x[b]);else r(r.P+r.F*(c||F),p,x);return x};
 },{"./_library":"H21C","./_export":"izCb","./_redefine":"PHot","./_hide":"NXbe","./_iterators":"JO4d","./_iter-create":"ebgP","./_set-to-string-tag":"rq3q","./_object-gpo":"q6yw","./_wks":"AIP1"}],"wVEN":[function(require,module,exports) {
 "use strict";var e=require("./_add-to-unscopables"),r=require("./_iter-step"),t=require("./_iterators"),i=require("./_to-iobject");module.exports=require("./_iter-define")(Array,"Array",function(e,r){this._t=i(e),this._i=0,this._k=r},function(){var e=this._t,t=this._k,i=this._i++;return!e||i>=e.length?(this._t=void 0,r(1)):r(0,"keys"==t?i:"values"==t?e[i]:[i,e[i]])},"values"),t.Arguments=t.Array,e("keys"),e("values"),e("entries");
-},{"./_add-to-unscopables":"Z7eD","./_iter-step":"x8b3","./_iterators":"JO4d","./_to-iobject":"g6sb","./_iter-define":"mH0U"}],"RB6b":[function(require,module,exports) {
+},{"./_add-to-unscopables":"Z7eD","./_iter-step":"x8b3","./_iterators":"JO4d","./_to-iobject":"g6sb","./_iter-define":"mH0U"}],"RBsu":[function(require,module,exports) {
+"use strict";var r=require("./_export"),e=require("./_array-methods")(1);r(r.P+r.F*!require("./_strict-method")([].map,!0),"Array",{map:function(r){return e(this,r,arguments[1])}});
+},{"./_export":"izCb","./_array-methods":"AuPh","./_strict-method":"Hh2M"}],"RB6b":[function(require,module,exports) {
 "use strict";var r=require("./_export"),e=require("./_create-property");r(r.S+r.F*require("./_fails")(function(){function r(){}return!(Array.of.call(r)instanceof r)}),"Array",{of:function(){for(var r=0,t=arguments.length,n=new("function"==typeof this?this:Array)(t);t>r;)e(n,r,arguments[r++]);return n.length=t,n}});
-},{"./_export":"izCb","./_create-property":"JCwR","./_fails":"BXiR"}],"Hh2M":[function(require,module,exports) {
-"use strict";var l=require("./_fails");module.exports=function(n,u){return!!n&&l(function(){u?n.call(null,function(){},1):n.call(null)})};
-},{"./_fails":"BXiR"}],"nrVf":[function(require,module,exports) {
+},{"./_export":"izCb","./_create-property":"JCwR","./_fails":"BXiR"}],"btFn":[function(require,module,exports) {
+"use strict";var r=require("./_export"),e=require("./_html"),i=require("./_cof"),t=require("./_to-absolute-index"),u=require("./_to-length"),a=[].slice;r(r.P+r.F*require("./_fails")(function(){e&&a.call(e)}),"Array",{slice:function(r,e){var l=u(this.length),n=i(this);if(e=void 0===e?l:e,"Array"==n)return a.call(this,r,e);for(var s=t(r,l),c=t(e,l),h=u(c-s),o=new Array(h),f=0;f<h;f++)o[f]="String"==n?this.charAt(s+f):this[s+f];return o}});
+},{"./_export":"izCb","./_html":"xjB1","./_cof":"Z5df","./_to-absolute-index":"vfEH","./_to-length":"dJBs","./_fails":"BXiR"}],"nrVf":[function(require,module,exports) {
 "use strict";var r=require("./_export"),t=require("./_a-function"),i=require("./_to-object"),e=require("./_fails"),o=[].sort,u=[1,2,3];r(r.P+r.F*(e(function(){u.sort(void 0)})||!e(function(){u.sort(null)})||!require("./_strict-method")(o)),"Array",{sort:function(r){return void 0===r?o.call(i(this)):o.call(i(this),t(r))}});
 },{"./_export":"izCb","./_a-function":"kYjc","./_to-object":"rfVX","./_fails":"BXiR","./_strict-method":"Hh2M"}],"h4dH":[function(require,module,exports) {
 
 "use strict";var e=require("./_global"),r=require("./_object-dp"),i=require("./_descriptors"),t=require("./_wks")("species");module.exports=function(u){var s=e[u];i&&s&&!s[t]&&r.f(s,t,{configurable:!0,get:function(){return this}})};
 },{"./_global":"qf4T","./_object-dp":"nw8e","./_descriptors":"P9Ib","./_wks":"AIP1"}],"smn3":[function(require,module,exports) {
 require("./_set-species")("Array");
-},{"./_set-species":"h4dH"}],"Gj6n":[function(require,module,exports) {
-"use strict";var t=require("./_export"),e=require("./_to-object"),r=require("./_to-primitive");t(t.P+t.F*require("./_fails")(function(){return null!==new Date(NaN).toJSON()||1!==Date.prototype.toJSON.call({toISOString:function(){return 1}})}),"Date",{toJSON:function(t){var i=e(this),n=r(i);return"number"!=typeof n||isFinite(n)?i.toISOString():null}});
-},{"./_export":"izCb","./_to-object":"rfVX","./_to-primitive":"y37I","./_fails":"BXiR"}],"pVj9":[function(require,module,exports) {
+},{"./_set-species":"h4dH"}],"pVj9":[function(require,module,exports) {
 "use strict";var r=require("./_an-object"),e=require("./_to-primitive"),t="number";module.exports=function(i){if("string"!==i&&i!==t&&"default"!==i)throw TypeError("Incorrect hint");return e(r(this),i!=t)};
 },{"./_an-object":"eT53","./_to-primitive":"y37I"}],"jQnQ":[function(require,module,exports) {
 var e=require("./_wks")("toPrimitive"),i=Date.prototype;e in i||require("./_hide")(i,e,require("./_date-to-primitive"));
@@ -309,9 +313,7 @@ var e=require("./_is-object");require("./_object-sap")("isExtensible",function(r
 var e=require("./_to-object"),r=require("./_object-keys");require("./_object-sap")("keys",function(){return function(t){return r(e(t))}});
 },{"./_to-object":"rfVX","./_object-keys":"U9a7","./_object-sap":"s7uf"}],"GYFR":[function(require,module,exports) {
 var e=require("./_is-object"),r=require("./_meta").onFreeze;require("./_object-sap")("seal",function(n){return function(t){return n&&e(t)?n(r(t)):t}});
-},{"./_is-object":"M7z6","./_meta":"AoVy","./_object-sap":"s7uf"}],"JGjq":[function(require,module,exports) {
-var e=require("./_export");e(e.S,"Object",{setPrototypeOf:require("./_set-proto").set});
-},{"./_export":"izCb","./_set-proto":"vn3S"}],"Ltmz":[function(require,module,exports) {
+},{"./_is-object":"M7z6","./_meta":"AoVy","./_object-sap":"s7uf"}],"Ltmz":[function(require,module,exports) {
 var r=require("./_export"),e=require("./_object-to-array")(!1);r(r.S,"Object",{values:function(r){return e(r)}});
 },{"./_export":"izCb","./_object-to-array":"ljQU"}],"ExG3":[function(require,module,exports) {
 var r=require("./_an-object"),e=require("./_a-function"),u=require("./_wks")("species");module.exports=function(n,o){var i,t=r(n).constructor;return void 0===t||null==(i=r(t)[u])?o:e(i)};
@@ -522,13 +524,11 @@ var e=require("./_export"),r=require("./_task");e(e.G+e.B,{setImmediate:r.set,cl
 },{"./_export":"izCb","./_task":"KY9y"}],"v6Aj":[function(require,module,exports) {
 
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For subfolders, use gui.removeFolder(folder) instead.");this.autoPlace&&ee.removeChild(this.domElement);var e=this;i.each(this.__folders,function(t){e.removeFolder(t)}),A.unbind(window,"keydown",oe._keydownHandler,!1),re(this)},addFolder:function(e){if(void 0!==this.__folders[e])throw new Error('You already have a folder in this GUI by the name "'+e+'"');var t={name:e,parent:this};t.autoPlace=this.autoPlace,this.load&&this.load.folders&&this.load.folders[e]&&(t.closed=this.load.folders[e].closed,t.load=this.load.folders[e]);var n=new oe(t);this.__folders[e]=n;var o=ie(this,n.domElement);return A.addClass(o,"folder"),n},removeFolder:function(e){this.__ul.removeChild(e.domElement.parentElement),delete this.__folders[e.name],this.load&&this.load.folders&&this.load.folders[e.name]&&delete this.load.folders[e.name],re(e);var t=this;i.each(e.__folders,function(t){e.removeFolder(t)}),i.defer(function(){t.onResize()})},open:function(){this.closed=!1},close:function(){this.closed=!0},hide:function(){this.domElement.style.display="none"},show:function(){this.domElement.style.display=""},onResize:function(){var e=this.getRoot();if(e.scrollable){var t=A.getOffset(e.__ul).top,n=0;i.each(e.__ul.childNodes,function(t){e.autoPlace&&t===e.__save_row||(n+=A.getHeight(t))}),window.innerHeight-t-W<n?(A.addClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height=window.innerHeight-t-W+"px"):(A.removeClass(e.domElement,oe.CLASS_TOO_TALL),e.__ul.style.height="auto")}e.__resize_handle&&i.defer(function(){e.__resize_handle.style.height=e.__ul.offsetHeight+"px"}),e.__closeButton&&(e.__closeButton.style.width=e.width+"px")},onResizeDebounced:i.debounce(function(){this.onResize()},50),remember:function(){if(i.isUndefined(Z)&&((Z=new X).domElement.innerHTML=z),this.parent)throw new Error("You can only call remember on a top level GUI.");var e=this;i.each(Array.prototype.slice.call(arguments),function(t){0===e.__rememberedObjects.length&&he(e),-1===e.__rememberedObjects.indexOf(t)&&e.__rememberedObjects.push(t)}),this.autoPlace&&fe(this,this.width)},getRoot:function(){for(var e=this;e.parent;)e=e.parent;return e},getSaveObject:function(){var e=this.load;return e.closed=this.closed,this.__rememberedObjects.length>0&&(e.preset=this.preset,e.remembered||(e.remembered={}),e.remembered[this.preset]=me(this)),e.folders={},i.each(this.__folders,function(t,n){e.folders[n]=t.getSaveObject()}),e},save:function(){this.load.remembered||(this.load.remembered={}),this.load.remembered[this.preset]=me(this),se(this,!1),this.saveToLocalStorageIfPossible()},saveAs:function(e){this.load.remembered||(this.load.remembered={},this.load.remembered[Q]=me(this,!0)),this.load.remembered[e]=me(this),this.preset=e,ue(this,e,!0),this.saveToLocalStorageIfPossible()},revert:function(e){i.each(this.__controllers,function(t){this.getRoot().load.remembered?le(e||this.getRoot(),t):t.setValue(t.initialValue),t.__onFinishChange&&t.__onFinishChange.call(t,t.getValue())},this),i.each(this.__folders,function(e){e.revert(e)}),e||se(this.getRoot(),!1)},listen:function(e){var t=0===this.__listening.length;this.__listening.push(e),t&&be(this.__listening)},updateDisplay:function(){i.each(this.__controllers,function(e){e.updateDisplay()}),i.each(this.__folders,function(e){e.updateDisplay()})}});var ve={Color:g,math:c,interpret:l};exports.color=ve;var ye={Controller:y,BooleanController:k,OptionController:S,StringController:O,NumberController:L,NumberControllerBox:B,NumberControllerSlider:H,FunctionController:F,ColorController:P};exports.controllers=ye;var we={dom:A};exports.dom=we;var xe={GUI:oe};exports.gui=xe;var Ee=oe;exports.GUI=Ee;var Ce={color:ve,controllers:ye,dom:we,gui:xe,GUI:Ee},Ae=Ce;exports.default=Ae;
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null!==t&&{space:"HEX",hex:parseInt("0x"+t[1].toString()+t[1].toString()+t[2].toString()+t[2].toString()+t[3].toString()+t[3].toString(),0)}},write:t},SIX_CHAR_HEX:{read:function(e){var t=e.match(/^#([A-F0-9]{6})$/i);return null!==t&&{space:"HEX",hex:parseInt("0x"+t[1].toString(),0)}},write:t},CSS_RGB:{read:function(e){var t=e.match(/^rgb\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/);return null!==t&&{space:"RGB",r:parseFloat(t[1]),g:parseFloat(t[2]),b:parseFloat(t[3])}},write:t},CSS_RGBA:{read:function(e){var t=e.match(/^rgba\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/);return null!==t&&{space:"RGB",r:parseFloat(t[1]),g:parseFloat(t[2]),b:parseFloat(t[3]),a:parseFloat(t[4])}},write:t}}},{litmus:i.isNumber,conversions:{HEX:{read:function(e){return{space:"HEX",hex:e,conversionName:"HEX"}},write:function(e){return e.hex}}}},{litmus:i.isArray,conversions:{RGB_ARRAY:{read:function(e){return 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b(e,t,n){Object.defineProperty(e,t,{get:function(){return"RGB"===this.__state.space?this.__state[t]:(g.recalculateRGB(this,t,n),this.__state[t])},set:function(e){"RGB"!==this.__state.space&&(g.recalculateRGB(this,t,n),this.__state.space="RGB"),this.__state[t]=e}})}function v(e,t){Object.defineProperty(e,t,{get:function(){return"HSV"===this.__state.space?this.__state[t]:(g.recalculateHSV(this),this.__state[t])},set:function(e){"HSV"!==this.__state.space&&(g.recalculateHSV(this),this.__state.space="HSV"),this.__state[t]=e}})}g.recalculateRGB=function(e,t,n){if("HEX"===e.__state.space)e.__state[t]=c.component_from_hex(e.__state.hex,n);else{if("HSV"!==e.__state.space)throw new Error("Corrupted color state");i.extend(e.__state,c.hsv_to_rgb(e.__state.h,e.__state.s,e.__state.v))}},g.recalculateHSV=function(e){var t=c.rgb_to_hsv(e.r,e.g,e.b);i.extend(e.__state,{s:t.s,v:t.v}),i.isNaN(t.h)?i.isUndefined(e.__state.h)&&(e.__state.h=0):e.__state.h=t.h},g.COMPONENTS=["r","g","b","h","s","v","hex","a"],b(g.prototype,"r",2),b(g.prototype,"g",1),b(g.prototype,"b",0),v(g.prototype,"h"),v(g.prototype,"s"),v(g.prototype,"v"),Object.defineProperty(g.prototype,"a",{get:function(){return this.__state.a},set:function(e){this.__state.a=e}}),Object.defineProperty(g.prototype,"hex",{get:function(){return"HEX"!==this.__state.space&&(this.__state.hex=c.rgb_to_hex(this.r,this.g,this.b),this.__state.space="HEX"),this.__state.hex},set:function(e){this.__state.space="HEX",this.__state.hex=e}});var y=function(){function e(t,n){_(this,e),this.initialValue=t[n],this.domElement=document.createElement("div"),this.object=t,this.property=n,this.__onChange=void 0,this.__onFinishChange=void 0}return h(e,[{key:"onChange",value:function(e){return this.__onChange=e,this}},{key:"onFinishChange",value:function(e){return this.__onFinishChange=e,this}},{key:"setValue",value:function(e){return this.object[this.property]=e,this.__onChange&&this.__onChange.call(this,e),this.updateDisplay(),this}},{key:"getValue",value:function(){return this.object[this.property]}},{key:"updateDisplay",value:function(){return this}},{key:"isModified",value:function(){return this.initialValue!==this.getValue()}}]),e}(),w={HTMLEvents:["change"],MouseEvents:["click","mousemove","mousedown","mouseup","mouseover"],KeyboardEvents:["keydown"]},x={};i.each(w,function(e,t){i.each(e,function(e){x[e]=t})});var E=/(\d+(\.\d+)?)px/;function C(e){if("0"===e||i.isUndefined(e))return 0;var t=e.match(E);return i.isNull(t)?0:parseFloat(t[1])}var A={makeSelectable:function(e,t){void 0!==e&&void 0!==e.style&&(e.onselectstart=t?function(){return!1}:function(){},e.style.MozUserSelect=t?"auto":"none",e.style.KhtmlUserSelect=t?"auto":"none",e.unselectable=t?"on":"off")},makeFullscreen:function(e,t,n){var o=n,r=t;i.isUndefined(r)&&(r=!0),i.isUndefined(o)&&(o=!0),e.style.position="absolute",r&&(e.style.left=0,e.style.right=0),o&&(e.style.top=0,e.style.bottom=0)},fakeEvent:function(e,t,n,o){var r=n||{},s=x[t];if(!s)throw new Error("Event type "+t+" not supported.");var a=document.createEvent(s);switch(s){case"MouseEvents":var l=r.x||r.clientX||0,d=r.y||r.clientY||0;a.initMouseEvent(t,r.bubbles||!1,r.cancelable||!0,window,r.clickCount||1,0,0,l,d,!1,!1,!1,!1,0,null);break;case"KeyboardEvents":var c=a.initKeyboardEvent||a.initKeyEvent;i.defaults(r,{cancelable:!0,ctrlKey:!1,altKey:!1,shiftKey:!1,metaKey:!1,keyCode:void 0,charCode:void 0}),c(t,r.bubbles||!1,r.cancelable,window,r.ctrlKey,r.altKey,r.shiftKey,r.metaKey,r.keyCode,r.charCode);break;default:a.initEvent(t,r.bubbles||!1,r.cancelable||!0)}i.defaults(a,o),e.dispatchEvent(a)},bind:function(e,t,n,o){var i=o||!1;return e.addEventListener?e.addEventListener(t,n,i):e.attachEvent&&e.attachEvent("on"+t,n),A},unbind:function(e,t,n,o){var 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0;const t="126";exports.REVISION="126";const e={LEFT:0,MIDDLE:1,RIGHT:2,ROTATE:0,DOLLY:1,PAN:2};exports.MOUSE=e;const n={ROTATE:0,PAN:1,DOLLY_PAN:2,DOLLY_ROTATE:3};exports.TOUCH=n;const r=0;exports.CullFaceNone=r;const i=1;exports.CullFaceBack=i;const s=2;exports.CullFaceFront=s;const o=3;exports.CullFaceFrontBack=3;const a=0;exports.BasicShadowMap=0;const l=1;exports.PCFShadowMap=l;const c=2;exports.PCFSoftShadowMap=c;const h=3;exports.VSMShadowMap=h;const u=0;exports.FrontSide=u;const p=1;exports.BackSide=p;const d=2;exports.DoubleSide=d;const m=1;exports.FlatShading=1;const f=2;exports.SmoothShading=2;const g=0;exports.NoBlending=g;const x=1;exports.NormalBlending=x;const v=2;exports.AdditiveBlending=v;const y=3;exports.SubtractiveBlending=y;const _=4;exports.MultiplyBlending=_;const b=5;exports.CustomBlending=b;const w=100;exports.AddEquation=w;const M=101;exports.SubtractEquation=M;const S=102;exports.ReverseSubtractEquation=S;const T=103;exports.MinEquation=T;const E=104;exports.MaxEquation=E;const A=200;exports.ZeroFactor=A;const L=201;exports.OneFactor=L;const R=202;exports.SrcColorFactor=R;const C=203;exports.OneMinusSrcColorFactor=C;const P=204;exports.SrcAlphaFactor=P;const D=205;exports.OneMinusSrcAlphaFactor=D;const I=206;exports.DstAlphaFactor=I;const B=207;exports.OneMinusDstAlphaFactor=B;const N=208;exports.DstColorFactor=N;const F=209;exports.OneMinusDstColorFactor=F;const O=210;exports.SrcAlphaSaturateFactor=O;const z=0;exports.NeverDepth=z;const G=1;exports.AlwaysDepth=G;const H=2;exports.LessDepth=H;const U=3;exports.LessEqualDepth=U;const k=4;exports.EqualDepth=k;const V=5;exports.GreaterEqualDepth=V;const W=6;exports.GreaterDepth=W;const j=7;exports.NotEqualDepth=j;const q=0;exports.MultiplyOperation=q;const X=1;exports.MixOperation=X;const Y=2;exports.AddOperation=Y;const Z=0;exports.NoToneMapping=Z;const J=1;exports.LinearToneMapping=J;const Q=2;exports.ReinhardToneMapping=Q;const K=3;exports.CineonToneMapping=K;const $=4;exports.ACESFilmicToneMapping=$;const tt=5;exports.CustomToneMapping=tt;const et=300;exports.UVMapping=et;const nt=301;exports.CubeReflectionMapping=nt;const rt=302;exports.CubeRefractionMapping=rt;const it=303;exports.EquirectangularReflectionMapping=it;const st=304;exports.EquirectangularRefractionMapping=st;const ot=306;exports.CubeUVReflectionMapping=ot;const at=307;exports.CubeUVRefractionMapping=at;const lt=1e3;exports.RepeatWrapping=lt;const ct=1001;exports.ClampToEdgeWrapping=ct;const ht=1002;exports.MirroredRepeatWrapping=ht;const ut=1003;exports.NearestFilter=ut;const pt=1004;exports.NearestMipmapNearestFilter=pt;const dt=1004;exports.NearestMipMapNearestFilter=1004;const mt=1005;exports.NearestMipmapLinearFilter=mt;const ft=1005;exports.NearestMipMapLinearFilter=1005;const gt=1006;exports.LinearFilter=gt;const xt=1007;exports.LinearMipmapNearestFilter=xt;const vt=1007;exports.LinearMipMapNearestFilter=1007;const yt=1008;exports.LinearMipmapLinearFilter=yt;const _t=1008;exports.LinearMipMapLinearFilter=1008;const bt=1009;exports.UnsignedByteType=bt;const wt=1010;exports.ByteType=wt;const Mt=1011;exports.ShortType=Mt;const St=1012;exports.UnsignedShortType=St;const Tt=1013;exports.IntType=Tt;const Et=1014;exports.UnsignedIntType=Et;const At=1015;exports.FloatType=At;const Lt=1016;exports.HalfFloatType=Lt;const Rt=1017;exports.UnsignedShort4444Type=Rt;const Ct=1018;exports.UnsignedShort5551Type=Ct;const Pt=1019;exports.UnsignedShort565Type=Pt;const Dt=1020;exports.UnsignedInt248Type=Dt;const It=1021;exports.AlphaFormat=It;const Bt=1022;exports.RGBFormat=Bt;const Nt=1023;exports.RGBAFormat=Nt;const Ft=1024;exports.LuminanceFormat=Ft;const Ot=1025;exports.LuminanceAlphaFormat=Ot;const zt=Nt;exports.RGBEFormat=zt;const Gt=1026;exports.DepthFormat=Gt;const Ht=1027;exports.DepthStencilFormat=Ht;const Ut=1028;exports.RedFormat=Ut;const kt=1029;exports.RedIntegerFormat=kt;const Vt=1030;exports.RGFormat=Vt;const Wt=1031;exports.RGIntegerFormat=Wt;const jt=1032;exports.RGBIntegerFormat=jt;const qt=1033;exports.RGBAIntegerFormat=qt;const Xt=33776;exports.RGB_S3TC_DXT1_Format=Xt;const Yt=33777;exports.RGBA_S3TC_DXT1_Format=Yt;const Zt=33778;exports.RGBA_S3TC_DXT3_Format=Zt;const Jt=33779;exports.RGBA_S3TC_DXT5_Format=Jt;const Qt=35840;exports.RGB_PVRTC_4BPPV1_Format=Qt;const Kt=35841;exports.RGB_PVRTC_2BPPV1_Format=Kt;const $t=35842;exports.RGBA_PVRTC_4BPPV1_Format=$t;const te=35843;exports.RGBA_PVRTC_2BPPV1_Format=te;const ee=36196;exports.RGB_ETC1_Format=ee;const ne=37492;exports.RGB_ETC2_Format=ne;const re=37496;exports.RGBA_ETC2_EAC_Format=re;const ie=37808;exports.RGBA_ASTC_4x4_Format=ie;const se=37809;exports.RGBA_ASTC_5x4_Format=se;const oe=37810;exports.RGBA_ASTC_5x5_Format=oe;const ae=37811;exports.RGBA_ASTC_6x5_Format=ae;const le=37812;exports.RGBA_ASTC_6x6_Format=le;const ce=37813;exports.RGBA_ASTC_8x5_Format=ce;const he=37814;exports.RGBA_ASTC_8x6_Format=he;const ue=37815;exports.RGBA_ASTC_8x8_Format=ue;const pe=37816;exports.RGBA_ASTC_10x5_Format=pe;const de=37817;exports.RGBA_ASTC_10x6_Format=de;const me=37818;exports.RGBA_ASTC_10x8_Format=me;const fe=37819;exports.RGBA_ASTC_10x10_Format=fe;const ge=37820;exports.RGBA_ASTC_12x10_Format=ge;const xe=37821;exports.RGBA_ASTC_12x12_Format=xe;const ve=36492;exports.RGBA_BPTC_Format=ve;const ye=37840;exports.SRGB8_ALPHA8_ASTC_4x4_Format=ye;const _e=37841;exports.SRGB8_ALPHA8_ASTC_5x4_Format=_e;const be=37842;exports.SRGB8_ALPHA8_ASTC_5x5_Format=be;const we=37843;exports.SRGB8_ALPHA8_ASTC_6x5_Format=we;const Me=37844;exports.SRGB8_ALPHA8_ASTC_6x6_Format=Me;const Se=37845;exports.SRGB8_ALPHA8_ASTC_8x5_Format=Se;const Te=37846;exports.SRGB8_ALPHA8_ASTC_8x6_Format=Te;const Ee=37847;exports.SRGB8_ALPHA8_ASTC_8x8_Format=Ee;const Ae=37848;exports.SRGB8_ALPHA8_ASTC_10x5_Format=Ae;const Le=37849;exports.SRGB8_ALPHA8_ASTC_10x6_Format=Le;const Re=37850;exports.SRGB8_ALPHA8_ASTC_10x8_Format=Re;const Ce=37851;exports.SRGB8_ALPHA8_ASTC_10x10_Format=Ce;const Pe=37852;exports.SRGB8_ALPHA8_ASTC_12x10_Format=Pe;const De=37853;exports.SRGB8_ALPHA8_ASTC_12x12_Format=De;const Ie=2200;exports.LoopOnce=Ie;const Be=2201;exports.LoopRepeat=Be;const Ne=2202;exports.LoopPingPong=Ne;const Fe=2300;exports.InterpolateDiscrete=Fe;const Oe=2301;exports.InterpolateLinear=Oe;const ze=2302;exports.InterpolateSmooth=ze;const Ge=2400;exports.ZeroCurvatureEnding=Ge;const He=2401;exports.ZeroSlopeEnding=He;const Ue=2402;exports.WrapAroundEnding=Ue;const ke=2500;exports.NormalAnimationBlendMode=ke;const Ve=2501;exports.AdditiveAnimationBlendMode=Ve;const We=0;exports.TrianglesDrawMode=0;const je=1;exports.TriangleStripDrawMode=1;const qe=2;exports.TriangleFanDrawMode=2;const Xe=3e3;exports.LinearEncoding=Xe;const Ye=3001;exports.sRGBEncoding=Ye;const Ze=3007;exports.GammaEncoding=Ze;const Je=3002;exports.RGBEEncoding=Je;const Qe=3003;exports.LogLuvEncoding=Qe;const Ke=3004;exports.RGBM7Encoding=Ke;const $e=3005;exports.RGBM16Encoding=$e;const tn=3006;exports.RGBDEncoding=tn;const en=3200;exports.BasicDepthPacking=en;const nn=3201;exports.RGBADepthPacking=nn;const rn=0;exports.TangentSpaceNormalMap=rn;const sn=1;exports.ObjectSpaceNormalMap=sn;const on=0;exports.ZeroStencilOp=0;const an=7680;exports.KeepStencilOp=an;const ln=7681;exports.ReplaceStencilOp=7681;const cn=7682;exports.IncrementStencilOp=7682;const hn=7683;exports.DecrementStencilOp=7683;const un=34055;exports.IncrementWrapStencilOp=34055;const pn=34056;exports.DecrementWrapStencilOp=34056;const dn=5386;exports.InvertStencilOp=5386;const mn=512;exports.NeverStencilFunc=512;const fn=513;exports.LessStencilFunc=513;const gn=514;exports.EqualStencilFunc=514;const xn=515;exports.LessEqualStencilFunc=515;const vn=516;exports.GreaterStencilFunc=516;const yn=517;exports.NotEqualStencilFunc=517;const _n=518;exports.GreaterEqualStencilFunc=518;const bn=519;exports.AlwaysStencilFunc=bn;const wn=35044;exports.StaticDrawUsage=wn;const Mn=35048;exports.DynamicDrawUsage=Mn;const Sn=35040;exports.StreamDrawUsage=35040;const Tn=35045;exports.StaticReadUsage=35045;const En=35049;exports.DynamicReadUsage=35049;const An=35041;exports.StreamReadUsage=35041;const Ln=35046;exports.StaticCopyUsage=35046;const Rn=35050;exports.DynamicCopyUsage=35050;const Cn=35042;exports.StreamCopyUsage=35042;const Pn="100";exports.GLSL1="100";const Dn="300 es";function In(){}exports.GLSL3=Dn,Object.assign(In.prototype,{addEventListener:function(t,e){void 0===this._listeners&&(this._listeners={});const n=this._listeners;void 0===n[t]&&(n[t]=[]),-1===n[t].indexOf(e)&&n[t].push(e)},hasEventListener:function(t,e){if(void 0===this._listeners)return!1;const n=this._listeners;return void 0!==n[t]&&-1!==n[t].indexOf(e)},removeEventListener:function(t,e){if(void 0===this._listeners)return;const n=this._listeners[t];if(void 0!==n){const t=n.indexOf(e);-1!==t&&n.splice(t,1)}},dispatchEvent:function(t){if(void 0===this._listeners)return;const e=this._listeners[t.type];if(void 0!==e){t.target=this;const n=e.slice(0);for(let e=0,r=n.length;e<r;e++)n[e].call(this,t)}}});const Bn=[];for(let yx=0;yx<256;yx++)Bn[yx]=(yx<16?"0":"")+yx.toString(16);let Nn=1234567;const Fn={DEG2RAD:Math.PI/180,RAD2DEG:180/Math.PI,generateUUID:function(){const t=4294967295*Math.random()|0,e=4294967295*Math.random()|0,n=4294967295*Math.random()|0,r=4294967295*Math.random()|0;return(Bn[255&t]+Bn[t>>8&255]+Bn[t>>16&255]+Bn[t>>24&255]+"-"+Bn[255&e]+Bn[e>>8&255]+"-"+Bn[e>>16&15|64]+Bn[e>>24&255]+"-"+Bn[63&n|128]+Bn[n>>8&255]+"-"+Bn[n>>16&255]+Bn[n>>24&255]+Bn[255&r]+Bn[r>>8&255]+Bn[r>>16&255]+Bn[r>>24&255]).toUpperCase()},clamp:function(t,e,n){return Math.max(e,Math.min(n,t))},euclideanModulo:function(t,e){return(t%e+e)%e},mapLinear:function(t,e,n,r,i){return r+(t-e)*(i-r)/(n-e)},lerp:function(t,e,n){return(1-n)*t+n*e},damp:function(t,e,n,r){return Fn.lerp(t,e,1-Math.exp(-n*r))},pingpong:function(t,e=1){return e-Math.abs(Fn.euclideanModulo(t,2*e)-e)},smoothstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*(3-2*t)},smootherstep:function(t,e,n){return t<=e?0:t>=n?1:(t=(t-e)/(n-e))*t*t*(t*(6*t-15)+10)},randInt:function(t,e){return t+Math.floor(Math.random()*(e-t+1))},randFloat:function(t,e){return t+Math.random()*(e-t)},randFloatSpread:function(t){return t*(.5-Math.random())},seededRandom:function(t){return void 0!==t&&(Nn=t%2147483647),((Nn=16807*Nn%2147483647)-1)/2147483646},degToRad:function(t){return t*Fn.DEG2RAD},radToDeg:function(t){return t*Fn.RAD2DEG},isPowerOfTwo:function(t){return 0==(t&t-1)&&0!==t},ceilPowerOfTwo:function(t){return Math.pow(2,Math.ceil(Math.log(t)/Math.LN2))},floorPowerOfTwo:function(t){return Math.pow(2,Math.floor(Math.log(t)/Math.LN2))},setQuaternionFromProperEuler:function(t,e,n,r,i){const s=Math.cos,o=Math.sin,a=s(n/2),l=o(n/2),c=s((e+r)/2),h=o((e+r)/2),u=s((e-r)/2),p=o((e-r)/2),d=s((r-e)/2),m=o((r-e)/2);switch(i){case"XYX":t.set(a*h,l*u,l*p,a*c);break;case"YZY":t.set(l*p,a*h,l*u,a*c);break;case"ZXZ":t.set(l*u,l*p,a*h,a*c);break;case"XZX":t.set(a*h,l*m,l*d,a*c);break;case"YXY":t.set(l*d,a*h,l*m,a*c);break;case"ZYZ":t.set(l*m,l*d,a*h,a*c);break;default:console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+i)}}};exports.MathUtils=exports.Math=Fn;class On{constructor(t=0,e=0){this.x=t,this.y=e}get width(){return this.x}set width(t){this.x=t}get height(){return this.y}set height(t){this.y=t}set(t,e){return this.x=t,this.y=e,this}setScalar(t){return this.x=t,this.y=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y)}copy(t){return this.x=t.x,this.y=t.y,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this)}addScalar(t){return this.x+=t,this.y+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this)}subScalar(t){return this.x-=t,this.y-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this}multiply(t){return this.x*=t.x,this.y*=t.y,this}multiplyScalar(t){return this.x*=t,this.y*=t,this}divide(t){return this.x/=t.x,this.y/=t.y,this}divideScalar(t){return this.multiplyScalar(1/t)}applyMatrix3(t){const e=this.x,n=this.y,r=t.elements;return this.x=r[0]*e+r[3]*n+r[6],this.y=r[1]*e+r[4]*n+r[7],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this}negate(){return this.x=-this.x,this.y=-this.y,this}dot(t){return this.x*t.x+this.y*t.y}cross(t){return this.x*t.y-this.y*t.x}lengthSq(){return this.x*this.x+this.y*this.y}length(){return Math.sqrt(this.x*this.x+this.y*this.y)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)}normalize(){return this.divideScalar(this.length()||1)}angle(){return Math.atan2(-this.y,-this.x)+Math.PI}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y;return e*e+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this}equals(t){return t.x===this.x&&t.y===this.y}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this}rotateAround(t,e){const n=Math.cos(e),r=Math.sin(e),i=this.x-t.x,s=this.y-t.y;return this.x=i*n-s*r+t.x,this.y=i*r+s*n+t.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}}exports.Vector2=On,On.prototype.isVector2=!0;class zn{constructor(){this.elements=[1,0,0,0,1,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l){const c=this.elements;return c[0]=t,c[1]=r,c[2]=o,c[3]=e,c[4]=i,c[5]=a,c[6]=n,c[7]=s,c[8]=l,this}identity(){return this.set(1,0,0,0,1,0,0,0,1),this}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],this}extractBasis(t,e,n){return t.setFromMatrix3Column(this,0),e.setFromMatrix3Column(this,1),n.setFromMatrix3Column(this,2),this}setFromMatrix4(t){const e=t.elements;return this.set(e[0],e[4],e[8],e[1],e[5],e[9],e[2],e[6],e[10]),this}multiply(t){return this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[3],a=n[6],l=n[1],c=n[4],h=n[7],u=n[2],p=n[5],d=n[8],m=r[0],f=r[3],g=r[6],x=r[1],v=r[4],y=r[7],_=r[2],b=r[5],w=r[8];return i[0]=s*m+o*x+a*_,i[3]=s*f+o*v+a*b,i[6]=s*g+o*y+a*w,i[1]=l*m+c*x+h*_,i[4]=l*f+c*v+h*b,i[7]=l*g+c*y+h*w,i[2]=u*m+p*x+d*_,i[5]=u*f+p*v+d*b,i[8]=u*g+p*y+d*w,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[3]*=t,e[6]*=t,e[1]*=t,e[4]*=t,e[7]*=t,e[2]*=t,e[5]*=t,e[8]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8];return e*s*c-e*o*l-n*i*c+n*o*a+r*i*l-r*s*a}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=c*s-o*l,u=o*a-c*i,p=l*i-s*a,d=e*h+n*u+r*p;if(0===d)return this.set(0,0,0,0,0,0,0,0,0);const m=1/d;return t[0]=h*m,t[1]=(r*l-c*n)*m,t[2]=(o*n-r*s)*m,t[3]=u*m,t[4]=(c*e-r*a)*m,t[5]=(r*i-o*e)*m,t[6]=p*m,t[7]=(n*a-l*e)*m,t[8]=(s*e-n*i)*m,this}transpose(){let t;const e=this.elements;return t=e[1],e[1]=e[3],e[3]=t,t=e[2],e[2]=e[6],e[6]=t,t=e[5],e[5]=e[7],e[7]=t,this}getNormalMatrix(t){return this.setFromMatrix4(t).invert().transpose()}transposeIntoArray(t){const e=this.elements;return t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8],this}setUvTransform(t,e,n,r,i,s,o){const a=Math.cos(i),l=Math.sin(i);return this.set(n*a,n*l,-n*(a*s+l*o)+s+t,-r*l,r*a,-r*(-l*s+a*o)+o+e,0,0,1),this}scale(t,e){const n=this.elements;return n[0]*=t,n[3]*=t,n[6]*=t,n[1]*=e,n[4]*=e,n[7]*=e,this}rotate(t){const e=Math.cos(t),n=Math.sin(t),r=this.elements,i=r[0],s=r[3],o=r[6],a=r[1],l=r[4],c=r[7];return r[0]=e*i+n*a,r[3]=e*s+n*l,r[6]=e*o+n*c,r[1]=-n*i+e*a,r[4]=-n*s+e*l,r[7]=-n*o+e*c,this}translate(t,e){const n=this.elements;return n[0]+=t*n[2],n[3]+=t*n[5],n[6]+=t*n[8],n[1]+=e*n[2],n[4]+=e*n[5],n[7]+=e*n[8],this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<9;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<9;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t}clone(){return(new this.constructor).fromArray(this.elements)}}let Gn;exports.Matrix3=zn,zn.prototype.isMatrix3=!0;const Hn={getDataURL:function(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===Gn&&(Gn=document.createElementNS("http://www.w3.org/1999/xhtml","canvas")),Gn.width=t.width,Gn.height=t.height;const n=Gn.getContext("2d");t instanceof ImageData?n.putImageData(t,0,0):n.drawImage(t,0,0,t.width,t.height),e=Gn}return e.width>2048||e.height>2048?e.toDataURL("image/jpeg",.6):e.toDataURL("image/png")}};exports.ImageUtils=Hn;let Un=0;class kn extends In{constructor(t=kn.DEFAULT_IMAGE,e=kn.DEFAULT_MAPPING,n=ct,r=ct,i=gt,s=yt,o=Nt,a=bt,l=1,c=Xe){super(),Object.defineProperty(this,"id",{value:Un++}),this.uuid=Fn.generateUUID(),this.name="",this.image=t,this.mipmaps=[],this.mapping=e,this.wrapS=n,this.wrapT=r,this.magFilter=i,this.minFilter=s,this.anisotropy=l,this.format=o,this.internalFormat=null,this.type=a,this.offset=new On(0,0),this.repeat=new On(1,1),this.center=new On(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new zn,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.encoding=c,this.version=0,this.onUpdate=null}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.image=t.image,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.encoding=t.encoding,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const n={metadata:{version:4.5,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,type:this.type,encoding:this.encoding,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(void 0!==this.image){const r=this.image;if(void 0===r.uuid&&(r.uuid=Fn.generateUUID()),!e&&void 0===t.images[r.uuid]){let e;if(Array.isArray(r)){e=[];for(let t=0,n=r.length;t<n;t++)r[t].isDataTexture?e.push(Vn(r[t].image)):e.push(Vn(r[t]))}else e=Vn(r);t.images[r.uuid]={uuid:r.uuid,url:e}}n.image=r.uuid}return e||(t.textures[this.uuid]=n),n}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(this.mapping!==et)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case lt:t.x=t.x-Math.floor(t.x);break;case ct:t.x=t.x<0?0:1;break;case ht:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case lt:t.y=t.y-Math.floor(t.y);break;case ct:t.y=t.y<0?0:1;break;case ht:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&this.version++}}function Vn(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?Hn.getDataURL(t):t.data?{data:Array.prototype.slice.call(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}exports.Texture=kn,kn.DEFAULT_IMAGE=void 0,kn.DEFAULT_MAPPING=et,kn.prototype.isTexture=!0;class Wn{constructor(t=0,e=0,n=0,r=1){this.x=t,this.y=e,this.z=n,this.w=r}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,n,r){return this.x=t,this.y=e,this.z=n,this.w=r,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=this.w,s=t.elements;return this.x=s[0]*e+s[4]*n+s[8]*r+s[12]*i,this.y=s[1]*e+s[5]*n+s[9]*r+s[13]*i,this.z=s[2]*e+s[6]*n+s[10]*r+s[14]*i,this.w=s[3]*e+s[7]*n+s[11]*r+s[15]*i,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,n,r,i;const s=t.elements,o=s[0],a=s[4],l=s[8],c=s[1],h=s[5],u=s[9],p=s[2],d=s[6],m=s[10];if(Math.abs(a-c)<.01&&Math.abs(l-p)<.01&&Math.abs(u-d)<.01){if(Math.abs(a+c)<.1&&Math.abs(l+p)<.1&&Math.abs(u+d)<.1&&Math.abs(o+h+m-3)<.1)return this.set(1,0,0,0),this;e=Math.PI;const t=(o+1)/2,s=(h+1)/2,f=(m+1)/2,g=(a+c)/4,x=(l+p)/4,v=(u+d)/4;return t>s&&t>f?t<.01?(n=0,r=.707106781,i=.707106781):(r=g/(n=Math.sqrt(t)),i=x/n):s>f?s<.01?(n=.707106781,r=0,i=.707106781):(n=g/(r=Math.sqrt(s)),i=v/r):f<.01?(n=.707106781,r=.707106781,i=0):(n=x/(i=Math.sqrt(f)),r=v/i),this.set(n,r,i,e),this}let f=Math.sqrt((d-u)*(d-u)+(l-p)*(l-p)+(c-a)*(c-a));return Math.abs(f)<.001&&(f=1),this.x=(d-u)/f,this.y=(l-p)/f,this.z=(c-a)/f,this.w=Math.acos((o+h+m-1)/2),this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this.w=Math.max(t.w,Math.min(e.w,this.w)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this.w=Math.max(t,Math.min(e,this.w)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this.w=this.w<0?Math.ceil(this.w):Math.floor(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this.w=t.w+(e.w-t.w)*n,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}}exports.Vector4=Wn,Wn.prototype.isVector4=!0;class jn extends In{constructor(t,e,n){super(),this.width=t,this.height=e,this.depth=1,this.scissor=new Wn(0,0,t,e),this.scissorTest=!1,this.viewport=new Wn(0,0,t,e),n=n||{},this.texture=new kn(void 0,n.mapping,n.wrapS,n.wrapT,n.magFilter,n.minFilter,n.format,n.type,n.anisotropy,n.encoding),this.texture.image={},this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=1,this.texture.generateMipmaps=void 0!==n.generateMipmaps&&n.generateMipmaps,this.texture.minFilter=void 0!==n.minFilter?n.minFilter:gt,this.depthBuffer=void 0===n.depthBuffer||n.depthBuffer,this.stencilBuffer=void 0!==n.stencilBuffer&&n.stencilBuffer,this.depthTexture=void 0!==n.depthTexture?n.depthTexture:null}setTexture(t){t.image={width:this.width,height:this.height,depth:this.depth},this.texture=t}setSize(t,e,n=1){this.width===t&&this.height===e&&this.depth===n||(this.width=t,this.height=e,this.depth=n,this.texture.image.width=t,this.texture.image.height=e,this.texture.image.depth=n,this.dispose()),this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.width=t.width,this.height=t.height,this.depth=t.depth,this.viewport.copy(t.viewport),this.texture=t.texture.clone(),this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.depthTexture=t.depthTexture,this}dispose(){this.dispatchEvent({type:"dispose"})}}exports.WebGLRenderTarget=jn,jn.prototype.isWebGLRenderTarget=!0;class qn extends jn{constructor(t,e,n){super(t,e,n),this.samples=4}copy(t){return super.copy.call(this,t),this.samples=t.samples,this}}exports.WebGLMultisampleRenderTarget=qn,qn.prototype.isWebGLMultisampleRenderTarget=!0;class Xn{constructor(t=0,e=0,n=0,r=1){this._x=t,this._y=e,this._z=n,this._w=r}static slerp(t,e,n,r){return n.copy(t).slerp(e,r)}static slerpFlat(t,e,n,r,i,s,o){let a=n[r+0],l=n[r+1],c=n[r+2],h=n[r+3];const u=i[s+0],p=i[s+1],d=i[s+2],m=i[s+3];if(0===o)return t[e+0]=a,t[e+1]=l,t[e+2]=c,void(t[e+3]=h);if(1===o)return t[e+0]=u,t[e+1]=p,t[e+2]=d,void(t[e+3]=m);if(h!==m||a!==u||l!==p||c!==d){let t=1-o;const e=a*u+l*p+c*d+h*m,n=e>=0?1:-1,r=1-e*e;if(r>Number.EPSILON){const i=Math.sqrt(r),s=Math.atan2(i,e*n);t=Math.sin(t*s)/i,o=Math.sin(o*s)/i}const i=o*n;if(a=a*t+u*i,l=l*t+p*i,c=c*t+d*i,h=h*t+m*i,t===1-o){const t=1/Math.sqrt(a*a+l*l+c*c+h*h);a*=t,l*=t,c*=t,h*=t}}t[e]=a,t[e+1]=l,t[e+2]=c,t[e+3]=h}static multiplyQuaternionsFlat(t,e,n,r,i,s){const o=n[r],a=n[r+1],l=n[r+2],c=n[r+3],h=i[s],u=i[s+1],p=i[s+2],d=i[s+3];return t[e]=o*d+c*h+a*p-l*u,t[e+1]=a*d+c*u+l*h-o*p,t[e+2]=l*d+c*p+o*u-a*h,t[e+3]=c*d-o*h-a*u-l*p,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._w=r,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e){if(!t||!t.isEuler)throw new Error("THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.");const n=t._x,r=t._y,i=t._z,s=t._order,o=Math.cos,a=Math.sin,l=o(n/2),c=o(r/2),h=o(i/2),u=a(n/2),p=a(r/2),d=a(i/2);switch(s){case"XYZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"YXZ":this._x=u*c*h+l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"ZXY":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h-u*p*d;break;case"ZYX":this._x=u*c*h-l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h+u*p*d;break;case"YZX":this._x=u*c*h+l*p*d,this._y=l*p*h+u*c*d,this._z=l*c*d-u*p*h,this._w=l*c*h-u*p*d;break;case"XZY":this._x=u*c*h-l*p*d,this._y=l*p*h-u*c*d,this._z=l*c*d+u*p*h,this._w=l*c*h+u*p*d;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)}return!1!==e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const n=e/2,r=Math.sin(n);return this._x=t.x*r,this._y=t.y*r,this._z=t.z*r,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,n=e[0],r=e[4],i=e[8],s=e[1],o=e[5],a=e[9],l=e[2],c=e[6],h=e[10],u=n+o+h;if(u>0){const t=.5/Math.sqrt(u+1);this._w=.25/t,this._x=(c-a)*t,this._y=(i-l)*t,this._z=(s-r)*t}else if(n>o&&n>h){const t=2*Math.sqrt(1+n-o-h);this._w=(c-a)/t,this._x=.25*t,this._y=(r+s)/t,this._z=(i+l)/t}else if(o>h){const t=2*Math.sqrt(1+o-n-h);this._w=(i-l)/t,this._x=(r+s)/t,this._y=.25*t,this._z=(a+c)/t}else{const t=2*Math.sqrt(1+h-n-o);this._w=(s-r)/t,this._x=(i+l)/t,this._y=(a+c)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let n=t.dot(e)+1;return n<1e-6?(n=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=n):(this._x=0,this._y=-t.z,this._z=t.y,this._w=n)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=n),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(Fn.clamp(this.dot(t),-1,1)))}rotateTowards(t,e){const n=this.angleTo(t);if(0===n)return this;const r=Math.min(1,e/n);return this.slerp(t,r),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t,e){return void 0!==e?(console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead."),this.multiplyQuaternions(t,e)):this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const n=t._x,r=t._y,i=t._z,s=t._w,o=e._x,a=e._y,l=e._z,c=e._w;return this._x=n*c+s*o+r*l-i*a,this._y=r*c+s*a+i*o-n*l,this._z=i*c+s*l+n*a-r*o,this._w=s*c-n*o-r*a-i*l,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const n=this._x,r=this._y,i=this._z,s=this._w;let o=s*t._w+n*t._x+r*t._y+i*t._z;if(o<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,o=-o):this.copy(t),o>=1)return this._w=s,this._x=n,this._y=r,this._z=i,this;const a=1-o*o;if(a<=Number.EPSILON){const t=1-e;return this._w=t*s+e*this._w,this._x=t*n+e*this._x,this._y=t*r+e*this._y,this._z=t*i+e*this._z,this.normalize(),this._onChangeCallback(),this}const l=Math.sqrt(a),c=Math.atan2(l,o),h=Math.sin((1-e)*c)/l,u=Math.sin(e*c)/l;return this._w=s*h+this._w*u,this._x=n*h+this._x*u,this._y=r*h+this._y*u,this._z=i*h+this._z*u,this._onChangeCallback(),this}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Quaternion=Xn,Xn.prototype.isQuaternion=!0;class Yn{constructor(t=0,e=0,n=0){this.x=t,this.y=e,this.z=n}set(t,e,n){return void 0===n&&(n=this.z),this.x=t,this.y=e,this.z=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t,e){return void 0!==e?(console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(t,e)):(this.x+=t.x,this.y+=t.y,this.z+=t.z,this)}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t,e){return void 0!==e?(console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(t,e)):(this.x-=t.x,this.y-=t.y,this.z-=t.z,this)}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(t,e)):(this.x*=t.x,this.y*=t.y,this.z*=t.z,this)}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return t&&t.isEuler||console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order."),this.applyQuaternion(Jn.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(Jn.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[3]*n+i[6]*r,this.y=i[1]*e+i[4]*n+i[7]*r,this.z=i[2]*e+i[5]*n+i[8]*r,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,n=this.y,r=this.z,i=t.elements,s=1/(i[3]*e+i[7]*n+i[11]*r+i[15]);return this.x=(i[0]*e+i[4]*n+i[8]*r+i[12])*s,this.y=(i[1]*e+i[5]*n+i[9]*r+i[13])*s,this.z=(i[2]*e+i[6]*n+i[10]*r+i[14])*s,this}applyQuaternion(t){const e=this.x,n=this.y,r=this.z,i=t.x,s=t.y,o=t.z,a=t.w,l=a*e+s*r-o*n,c=a*n+o*e-i*r,h=a*r+i*n-s*e,u=-i*e-s*n-o*r;return this.x=l*a+u*-i+c*-o-h*-s,this.y=c*a+u*-s+h*-i-l*-o,this.z=h*a+u*-o+l*-s-c*-i,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,n=this.y,r=this.z,i=t.elements;return this.x=i[0]*e+i[4]*n+i[8]*r,this.y=i[1]*e+i[5]*n+i[9]*r,this.z=i[2]*e+i[6]*n+i[10]*r,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this}clampLength(t,e){const n=this.length();return this.divideScalar(n||1).multiplyScalar(Math.max(t,Math.min(e,n)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this.z=t.z+(e.z-t.z)*n,this}cross(t,e){return void 0!==e?(console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(t,e)):this.crossVectors(this,t)}crossVectors(t,e){const n=t.x,r=t.y,i=t.z,s=e.x,o=e.y,a=e.z;return this.x=r*a-i*o,this.y=i*s-n*a,this.z=n*o-r*s,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const n=t.dot(this)/e;return this.copy(t).multiplyScalar(n)}projectOnPlane(t){return Zn.copy(this).projectOnVector(t),this.sub(Zn)}reflect(t){return this.sub(Zn.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const n=this.dot(t)/e;return Math.acos(Fn.clamp(n,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,n=this.y-t.y,r=this.z-t.z;return e*e+n*n+r*r}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,n){const r=Math.sin(e)*t;return this.x=r*Math.sin(n),this.y=Math.cos(e)*t,this.z=r*Math.cos(n),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,n){return this.x=t*Math.sin(e),this.y=n,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),n=this.setFromMatrixColumn(t,1).length(),r=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=n,this.z=r,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e,n){return void 0!==n&&console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute()."),this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}}exports.Vector3=Yn,Yn.prototype.isVector3=!0;const Zn=new Yn,Jn=new Xn;class Qn{constructor(t=new Yn(1/0,1/0,1/0),e=new Yn(-1/0,-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.length;a<l;a+=3){const l=t[a],c=t[a+1],h=t[a+2];l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromBufferAttribute(t){let e=1/0,n=1/0,r=1/0,i=-1/0,s=-1/0,o=-1/0;for(let a=0,l=t.count;a<l;a++){const l=t.getX(a),c=t.getY(a),h=t.getZ(a);l<e&&(e=l),c<n&&(n=c),h<r&&(r=h),l>i&&(i=l),c>s&&(s=c),h>o&&(o=h)}return this.min.set(e,n,r),this.max.set(i,s,o),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=$n.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}setFromObject(t){return this.makeEmpty(),this.expandByObject(t)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return void 0===t&&(console.warn("THREE.Box3: .getCenter() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box3: .getSize() target is now required"),t=new Yn),this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t){t.updateWorldMatrix(!1,!1);const e=t.geometry;void 0!==e&&(null===e.boundingBox&&e.computeBoundingBox(),tr.copy(e.boundingBox),tr.applyMatrix4(t.matrixWorld),this.union(tr));const n=t.children;for(let r=0,i=n.length;r<i;r++)this.expandByObject(n[r]);return this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y||t.z<this.min.z||t.z>this.max.z)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box3: .getParameter() target is now required"),e=new Yn),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y||t.max.z<this.min.z||t.min.z>this.max.z)}intersectsSphere(t){return this.clampPoint(t.center,$n),$n.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,n;return t.normal.x>0?(e=t.normal.x*this.min.x,n=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,n=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,n+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,n+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,n+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,n+=t.normal.z*this.min.z),e<=-t.constant&&n>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(ar),lr.subVectors(this.max,ar),er.subVectors(t.a,ar),nr.subVectors(t.b,ar),rr.subVectors(t.c,ar),ir.subVectors(nr,er),sr.subVectors(rr,nr),or.subVectors(er,rr);let e=[0,-ir.z,ir.y,0,-sr.z,sr.y,0,-or.z,or.y,ir.z,0,-ir.x,sr.z,0,-sr.x,or.z,0,-or.x,-ir.y,ir.x,0,-sr.y,sr.x,0,-or.y,or.x,0];return!!ur(e,er,nr,rr,lr)&&(!!ur(e=[1,0,0,0,1,0,0,0,1],er,nr,rr,lr)&&(cr.crossVectors(ir,sr),ur(e=[cr.x,cr.y,cr.z],er,nr,rr,lr)))}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box3: .clampPoint() target is now required"),e=new Yn),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return $n.copy(t).clamp(this.min,this.max).sub(t).length()}getBoundingSphere(t){return void 0===t&&console.error("THREE.Box3: .getBoundingSphere() target is now required"),this.getCenter(t.center),t.radius=.5*this.getSize($n).length(),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()?this:(Kn[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),Kn[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),Kn[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),Kn[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),Kn[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),Kn[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),Kn[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),Kn[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(Kn),this)}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box3=Qn,Qn.prototype.isBox3=!0;const Kn=[new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn,new Yn],$n=new Yn,tr=new Qn,er=new Yn,nr=new Yn,rr=new Yn,ir=new Yn,sr=new Yn,or=new Yn,ar=new Yn,lr=new Yn,cr=new Yn,hr=new Yn;function ur(t,e,n,r,i){for(let s=0,o=t.length-3;s<=o;s+=3){hr.fromArray(t,s);const o=i.x*Math.abs(hr.x)+i.y*Math.abs(hr.y)+i.z*Math.abs(hr.z),a=e.dot(hr),l=n.dot(hr),c=r.dot(hr);if(Math.max(-Math.max(a,l,c),Math.min(a,l,c))>o)return!1}return!0}const pr=new Qn;class dr{constructor(t=new Yn,e=-1){this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const n=this.center;void 0!==e?n.copy(e):pr.setFromPoints(t).getCenter(n);let r=0;for(let i=0,s=t.length;i<s;i++)r=Math.max(r,n.distanceToSquared(t[i]));return this.radius=Math.sqrt(r),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const n=this.center.distanceToSquared(t);return void 0===e&&(console.warn("THREE.Sphere: .clampPoint() target is now required"),e=new Yn),e.copy(t),n>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return void 0===t&&(console.warn("THREE.Sphere: .getBoundingBox() target is now required"),t=new Qn),this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}exports.Sphere=dr;const mr=new Yn,fr=new Yn,gr=new Yn,xr=new Yn,vr=new Yn,yr=new Yn,_r=new Yn;class br{constructor(t=new Yn,e=new Yn(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return void 0===e&&(console.warn("THREE.Ray: .at() target is now required"),e=new Yn),e.copy(this.direction).multiplyScalar(t).add(this.origin)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,mr)),this}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Ray: .closestPointToPoint() target is now required"),e=new Yn),e.subVectors(t,this.origin);const n=e.dot(this.direction);return n<0?e.copy(this.origin):e.copy(this.direction).multiplyScalar(n).add(this.origin)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=mr.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(mr.copy(this.direction).multiplyScalar(e).add(this.origin),mr.distanceToSquared(t))}distanceSqToSegment(t,e,n,r){fr.copy(t).add(e).multiplyScalar(.5),gr.copy(e).sub(t).normalize(),xr.copy(this.origin).sub(fr);const i=.5*t.distanceTo(e),s=-this.direction.dot(gr),o=xr.dot(this.direction),a=-xr.dot(gr),l=xr.lengthSq(),c=Math.abs(1-s*s);let h,u,p,d;if(c>0)if(u=s*o-a,d=i*c,(h=s*a-o)>=0)if(u>=-d)if(u<=d){const t=1/c;p=(h*=t)*(h+s*(u*=t)+2*o)+u*(s*h+u+2*a)+l}else u=i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u=-i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;else u<=-d?p=-(h=Math.max(0,-(-s*i+o)))*h+(u=h>0?-i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l:u<=d?(h=0,p=(u=Math.min(Math.max(-i,-a),i))*(u+2*a)+l):p=-(h=Math.max(0,-(s*i+o)))*h+(u=h>0?i:Math.min(Math.max(-i,-a),i))*(u+2*a)+l;else u=s>0?-i:i,p=-(h=Math.max(0,-(s*u+o)))*h+u*(u+2*a)+l;return n&&n.copy(this.direction).multiplyScalar(h).add(this.origin),r&&r.copy(gr).multiplyScalar(u).add(fr),p}intersectSphere(t,e){mr.subVectors(t.center,this.origin);const n=mr.dot(this.direction),r=mr.dot(mr)-n*n,i=t.radius*t.radius;if(r>i)return null;const s=Math.sqrt(i-r),o=n-s,a=n+s;return o<0&&a<0?null:o<0?this.at(a,e):this.at(o,e)}intersectsSphere(t){return this.distanceSqToPoint(t.center)<=t.radius*t.radius}distanceToPlane(t){const e=t.normal.dot(this.direction);if(0===e)return 0===t.distanceToPoint(this.origin)?0:null;const n=-(this.origin.dot(t.normal)+t.constant)/e;return n>=0?n:null}intersectPlane(t,e){const n=this.distanceToPlane(t);return null===n?null:this.at(n,e)}intersectsPlane(t){const e=t.distanceToPoint(this.origin);return 0===e||t.normal.dot(this.direction)*e<0}intersectBox(t,e){let n,r,i,s,o,a;const l=1/this.direction.x,c=1/this.direction.y,h=1/this.direction.z,u=this.origin;return l>=0?(n=(t.min.x-u.x)*l,r=(t.max.x-u.x)*l):(n=(t.max.x-u.x)*l,r=(t.min.x-u.x)*l),c>=0?(i=(t.min.y-u.y)*c,s=(t.max.y-u.y)*c):(i=(t.max.y-u.y)*c,s=(t.min.y-u.y)*c),n>s||i>r?null:((i>n||n!=n)&&(n=i),(s<r||r!=r)&&(r=s),h>=0?(o=(t.min.z-u.z)*h,a=(t.max.z-u.z)*h):(o=(t.max.z-u.z)*h,a=(t.min.z-u.z)*h),n>a||o>r?null:((o>n||n!=n)&&(n=o),(a<r||r!=r)&&(r=a),r<0?null:this.at(n>=0?n:r,e)))}intersectsBox(t){return null!==this.intersectBox(t,mr)}intersectTriangle(t,e,n,r,i){vr.subVectors(e,t),yr.subVectors(n,t),_r.crossVectors(vr,yr);let s,o=this.direction.dot(_r);if(o>0){if(r)return null;s=1}else{if(!(o<0))return null;s=-1,o=-o}xr.subVectors(this.origin,t);const a=s*this.direction.dot(yr.crossVectors(xr,yr));if(a<0)return null;const l=s*this.direction.dot(vr.cross(xr));if(l<0)return null;if(a+l>o)return null;const c=-s*xr.dot(_r);return c<0?null:this.at(c/o,i)}applyMatrix4(t){return this.origin.applyMatrix4(t),this.direction.transformDirection(t),this}equals(t){return t.origin.equals(this.origin)&&t.direction.equals(this.direction)}clone(){return(new this.constructor).copy(this)}}exports.Ray=br;class wr{constructor(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],arguments.length>0&&console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")}set(t,e,n,r,i,s,o,a,l,c,h,u,p,d,m,f){const g=this.elements;return g[0]=t,g[4]=e,g[8]=n,g[12]=r,g[1]=i,g[5]=s,g[9]=o,g[13]=a,g[2]=l,g[6]=c,g[10]=h,g[14]=u,g[3]=p,g[7]=d,g[11]=m,g[15]=f,this}identity(){return this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1),this}clone(){return(new wr).fromArray(this.elements)}copy(t){const e=this.elements,n=t.elements;return e[0]=n[0],e[1]=n[1],e[2]=n[2],e[3]=n[3],e[4]=n[4],e[5]=n[5],e[6]=n[6],e[7]=n[7],e[8]=n[8],e[9]=n[9],e[10]=n[10],e[11]=n[11],e[12]=n[12],e[13]=n[13],e[14]=n[14],e[15]=n[15],this}copyPosition(t){const e=this.elements,n=t.elements;return e[12]=n[12],e[13]=n[13],e[14]=n[14],this}setFromMatrix3(t){const e=t.elements;return this.set(e[0],e[3],e[6],0,e[1],e[4],e[7],0,e[2],e[5],e[8],0,0,0,0,1),this}extractBasis(t,e,n){return t.setFromMatrixColumn(this,0),e.setFromMatrixColumn(this,1),n.setFromMatrixColumn(this,2),this}makeBasis(t,e,n){return this.set(t.x,e.x,n.x,0,t.y,e.y,n.y,0,t.z,e.z,n.z,0,0,0,0,1),this}extractRotation(t){const e=this.elements,n=t.elements,r=1/Mr.setFromMatrixColumn(t,0).length(),i=1/Mr.setFromMatrixColumn(t,1).length(),s=1/Mr.setFromMatrixColumn(t,2).length();return e[0]=n[0]*r,e[1]=n[1]*r,e[2]=n[2]*r,e[3]=0,e[4]=n[4]*i,e[5]=n[5]*i,e[6]=n[6]*i,e[7]=0,e[8]=n[8]*s,e[9]=n[9]*s,e[10]=n[10]*s,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromEuler(t){t&&t.isEuler||console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.");const e=this.elements,n=t.x,r=t.y,i=t.z,s=Math.cos(n),o=Math.sin(n),a=Math.cos(r),l=Math.sin(r),c=Math.cos(i),h=Math.sin(i);if("XYZ"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=-a*h,e[8]=l,e[1]=n+r*l,e[5]=t-i*l,e[9]=-o*a,e[2]=i-t*l,e[6]=r+n*l,e[10]=s*a}else if("YXZ"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t+i*o,e[4]=r*o-n,e[8]=s*l,e[1]=s*h,e[5]=s*c,e[9]=-o,e[2]=n*o-r,e[6]=i+t*o,e[10]=s*a}else if("ZXY"===t.order){const t=a*c,n=a*h,r=l*c,i=l*h;e[0]=t-i*o,e[4]=-s*h,e[8]=r+n*o,e[1]=n+r*o,e[5]=s*c,e[9]=i-t*o,e[2]=-s*l,e[6]=o,e[10]=s*a}else if("ZYX"===t.order){const t=s*c,n=s*h,r=o*c,i=o*h;e[0]=a*c,e[4]=r*l-n,e[8]=t*l+i,e[1]=a*h,e[5]=i*l+t,e[9]=n*l-r,e[2]=-l,e[6]=o*a,e[10]=s*a}else if("YZX"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=i-t*h,e[8]=r*h+n,e[1]=h,e[5]=s*c,e[9]=-o*c,e[2]=-l*c,e[6]=n*h+r,e[10]=t-i*h}else if("XZY"===t.order){const t=s*a,n=s*l,r=o*a,i=o*l;e[0]=a*c,e[4]=-h,e[8]=l*c,e[1]=t*h+i,e[5]=s*c,e[9]=n*h-r,e[2]=r*h-n,e[6]=o*c,e[10]=i*h+t}return e[3]=0,e[7]=0,e[11]=0,e[12]=0,e[13]=0,e[14]=0,e[15]=1,this}makeRotationFromQuaternion(t){return this.compose(Tr,t,Er)}lookAt(t,e,n){const r=this.elements;return Rr.subVectors(t,e),0===Rr.lengthSq()&&(Rr.z=1),Rr.normalize(),Ar.crossVectors(n,Rr),0===Ar.lengthSq()&&(1===Math.abs(n.z)?Rr.x+=1e-4:Rr.z+=1e-4,Rr.normalize(),Ar.crossVectors(n,Rr)),Ar.normalize(),Lr.crossVectors(Rr,Ar),r[0]=Ar.x,r[4]=Lr.x,r[8]=Rr.x,r[1]=Ar.y,r[5]=Lr.y,r[9]=Rr.y,r[2]=Ar.z,r[6]=Lr.z,r[10]=Rr.z,this}multiply(t,e){return void 0!==e?(console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(t,e)):this.multiplyMatrices(this,t)}premultiply(t){return this.multiplyMatrices(t,this)}multiplyMatrices(t,e){const n=t.elements,r=e.elements,i=this.elements,s=n[0],o=n[4],a=n[8],l=n[12],c=n[1],h=n[5],u=n[9],p=n[13],d=n[2],m=n[6],f=n[10],g=n[14],x=n[3],v=n[7],y=n[11],_=n[15],b=r[0],w=r[4],M=r[8],S=r[12],T=r[1],E=r[5],A=r[9],L=r[13],R=r[2],C=r[6],P=r[10],D=r[14],I=r[3],B=r[7],N=r[11],F=r[15];return i[0]=s*b+o*T+a*R+l*I,i[4]=s*w+o*E+a*C+l*B,i[8]=s*M+o*A+a*P+l*N,i[12]=s*S+o*L+a*D+l*F,i[1]=c*b+h*T+u*R+p*I,i[5]=c*w+h*E+u*C+p*B,i[9]=c*M+h*A+u*P+p*N,i[13]=c*S+h*L+u*D+p*F,i[2]=d*b+m*T+f*R+g*I,i[6]=d*w+m*E+f*C+g*B,i[10]=d*M+m*A+f*P+g*N,i[14]=d*S+m*L+f*D+g*F,i[3]=x*b+v*T+y*R+_*I,i[7]=x*w+v*E+y*C+_*B,i[11]=x*M+v*A+y*P+_*N,i[15]=x*S+v*L+y*D+_*F,this}multiplyScalar(t){const e=this.elements;return e[0]*=t,e[4]*=t,e[8]*=t,e[12]*=t,e[1]*=t,e[5]*=t,e[9]*=t,e[13]*=t,e[2]*=t,e[6]*=t,e[10]*=t,e[14]*=t,e[3]*=t,e[7]*=t,e[11]*=t,e[15]*=t,this}determinant(){const t=this.elements,e=t[0],n=t[4],r=t[8],i=t[12],s=t[1],o=t[5],a=t[9],l=t[13],c=t[2],h=t[6],u=t[10],p=t[14];return t[3]*(+i*a*h-r*l*h-i*o*u+n*l*u+r*o*p-n*a*p)+t[7]*(+e*a*p-e*l*u+i*s*u-r*s*p+r*l*c-i*a*c)+t[11]*(+e*l*h-e*o*p-i*s*h+n*s*p+i*o*c-n*l*c)+t[15]*(-r*o*c-e*a*h+e*o*u+r*s*h-n*s*u+n*a*c)}transpose(){const t=this.elements;let e;return e=t[1],t[1]=t[4],t[4]=e,e=t[2],t[2]=t[8],t[8]=e,e=t[6],t[6]=t[9],t[9]=e,e=t[3],t[3]=t[12],t[12]=e,e=t[7],t[7]=t[13],t[13]=e,e=t[11],t[11]=t[14],t[14]=e,this}setPosition(t,e,n){const r=this.elements;return t.isVector3?(r[12]=t.x,r[13]=t.y,r[14]=t.z):(r[12]=t,r[13]=e,r[14]=n),this}invert(){const t=this.elements,e=t[0],n=t[1],r=t[2],i=t[3],s=t[4],o=t[5],a=t[6],l=t[7],c=t[8],h=t[9],u=t[10],p=t[11],d=t[12],m=t[13],f=t[14],g=t[15],x=h*f*l-m*u*l+m*a*p-o*f*p-h*a*g+o*u*g,v=d*u*l-c*f*l-d*a*p+s*f*p+c*a*g-s*u*g,y=c*m*l-d*h*l+d*o*p-s*m*p-c*o*g+s*h*g,_=d*h*a-c*m*a-d*o*u+s*m*u+c*o*f-s*h*f,b=e*x+n*v+r*y+i*_;if(0===b)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);const w=1/b;return t[0]=x*w,t[1]=(m*u*i-h*f*i-m*r*p+n*f*p+h*r*g-n*u*g)*w,t[2]=(o*f*i-m*a*i+m*r*l-n*f*l-o*r*g+n*a*g)*w,t[3]=(h*a*i-o*u*i-h*r*l+n*u*l+o*r*p-n*a*p)*w,t[4]=v*w,t[5]=(c*f*i-d*u*i+d*r*p-e*f*p-c*r*g+e*u*g)*w,t[6]=(d*a*i-s*f*i-d*r*l+e*f*l+s*r*g-e*a*g)*w,t[7]=(s*u*i-c*a*i+c*r*l-e*u*l-s*r*p+e*a*p)*w,t[8]=y*w,t[9]=(d*h*i-c*m*i-d*n*p+e*m*p+c*n*g-e*h*g)*w,t[10]=(s*m*i-d*o*i+d*n*l-e*m*l-s*n*g+e*o*g)*w,t[11]=(c*o*i-s*h*i-c*n*l+e*h*l+s*n*p-e*o*p)*w,t[12]=_*w,t[13]=(c*m*r-d*h*r+d*n*u-e*m*u-c*n*f+e*h*f)*w,t[14]=(d*o*r-s*m*r-d*n*a+e*m*a+s*n*f-e*o*f)*w,t[15]=(s*h*r-c*o*r+c*n*a-e*h*a-s*n*u+e*o*u)*w,this}scale(t){const e=this.elements,n=t.x,r=t.y,i=t.z;return e[0]*=n,e[4]*=r,e[8]*=i,e[1]*=n,e[5]*=r,e[9]*=i,e[2]*=n,e[6]*=r,e[10]*=i,e[3]*=n,e[7]*=r,e[11]*=i,this}getMaxScaleOnAxis(){const t=this.elements,e=t[0]*t[0]+t[1]*t[1]+t[2]*t[2],n=t[4]*t[4]+t[5]*t[5]+t[6]*t[6],r=t[8]*t[8]+t[9]*t[9]+t[10]*t[10];return Math.sqrt(Math.max(e,n,r))}makeTranslation(t,e,n){return this.set(1,0,0,t,0,1,0,e,0,0,1,n,0,0,0,1),this}makeRotationX(t){const e=Math.cos(t),n=Math.sin(t);return this.set(1,0,0,0,0,e,-n,0,0,n,e,0,0,0,0,1),this}makeRotationY(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,0,n,0,0,1,0,0,-n,0,e,0,0,0,0,1),this}makeRotationZ(t){const e=Math.cos(t),n=Math.sin(t);return this.set(e,-n,0,0,n,e,0,0,0,0,1,0,0,0,0,1),this}makeRotationAxis(t,e){const n=Math.cos(e),r=Math.sin(e),i=1-n,s=t.x,o=t.y,a=t.z,l=i*s,c=i*o;return this.set(l*s+n,l*o-r*a,l*a+r*o,0,l*o+r*a,c*o+n,c*a-r*s,0,l*a-r*o,c*a+r*s,i*a*a+n,0,0,0,0,1),this}makeScale(t,e,n){return this.set(t,0,0,0,0,e,0,0,0,0,n,0,0,0,0,1),this}makeShear(t,e,n){return this.set(1,e,n,0,t,1,n,0,t,e,1,0,0,0,0,1),this}compose(t,e,n){const r=this.elements,i=e._x,s=e._y,o=e._z,a=e._w,l=i+i,c=s+s,h=o+o,u=i*l,p=i*c,d=i*h,m=s*c,f=s*h,g=o*h,x=a*l,v=a*c,y=a*h,_=n.x,b=n.y,w=n.z;return r[0]=(1-(m+g))*_,r[1]=(p+y)*_,r[2]=(d-v)*_,r[3]=0,r[4]=(p-y)*b,r[5]=(1-(u+g))*b,r[6]=(f+x)*b,r[7]=0,r[8]=(d+v)*w,r[9]=(f-x)*w,r[10]=(1-(u+m))*w,r[11]=0,r[12]=t.x,r[13]=t.y,r[14]=t.z,r[15]=1,this}decompose(t,e,n){const r=this.elements;let i=Mr.set(r[0],r[1],r[2]).length();const s=Mr.set(r[4],r[5],r[6]).length(),o=Mr.set(r[8],r[9],r[10]).length();this.determinant()<0&&(i=-i),t.x=r[12],t.y=r[13],t.z=r[14],Sr.copy(this);const a=1/i,l=1/s,c=1/o;return Sr.elements[0]*=a,Sr.elements[1]*=a,Sr.elements[2]*=a,Sr.elements[4]*=l,Sr.elements[5]*=l,Sr.elements[6]*=l,Sr.elements[8]*=c,Sr.elements[9]*=c,Sr.elements[10]*=c,e.setFromRotationMatrix(Sr),n.x=i,n.y=s,n.z=o,this}makePerspective(t,e,n,r,i,s){void 0===s&&console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.");const o=this.elements,a=2*i/(e-t),l=2*i/(n-r),c=(e+t)/(e-t),h=(n+r)/(n-r),u=-(s+i)/(s-i),p=-2*s*i/(s-i);return o[0]=a,o[4]=0,o[8]=c,o[12]=0,o[1]=0,o[5]=l,o[9]=h,o[13]=0,o[2]=0,o[6]=0,o[10]=u,o[14]=p,o[3]=0,o[7]=0,o[11]=-1,o[15]=0,this}makeOrthographic(t,e,n,r,i,s){const o=this.elements,a=1/(e-t),l=1/(n-r),c=1/(s-i),h=(e+t)*a,u=(n+r)*l,p=(s+i)*c;return o[0]=2*a,o[4]=0,o[8]=0,o[12]=-h,o[1]=0,o[5]=2*l,o[9]=0,o[13]=-u,o[2]=0,o[6]=0,o[10]=-2*c,o[14]=-p,o[3]=0,o[7]=0,o[11]=0,o[15]=1,this}equals(t){const e=this.elements,n=t.elements;for(let r=0;r<16;r++)if(e[r]!==n[r])return!1;return!0}fromArray(t,e=0){for(let n=0;n<16;n++)this.elements[n]=t[n+e];return this}toArray(t=[],e=0){const n=this.elements;return t[e]=n[0],t[e+1]=n[1],t[e+2]=n[2],t[e+3]=n[3],t[e+4]=n[4],t[e+5]=n[5],t[e+6]=n[6],t[e+7]=n[7],t[e+8]=n[8],t[e+9]=n[9],t[e+10]=n[10],t[e+11]=n[11],t[e+12]=n[12],t[e+13]=n[13],t[e+14]=n[14],t[e+15]=n[15],t}}exports.Matrix4=wr,wr.prototype.isMatrix4=!0;const Mr=new Yn,Sr=new wr,Tr=new Yn(0,0,0),Er=new Yn(1,1,1),Ar=new Yn,Lr=new Yn,Rr=new Yn,Cr=new wr,Pr=new Xn;class Dr{constructor(t=0,e=0,n=0,r=Dr.DefaultOrder){this._x=t,this._y=e,this._z=n,this._order=r}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,n,r){return this._x=t,this._y=e,this._z=n,this._order=r||this._order,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e,n){const r=Fn.clamp,i=t.elements,s=i[0],o=i[4],a=i[8],l=i[1],c=i[5],h=i[9],u=i[2],p=i[6],d=i[10];switch(e=e||this._order){case"XYZ":this._y=Math.asin(r(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-h,d),this._z=Math.atan2(-o,s)):(this._x=Math.atan2(p,c),this._z=0);break;case"YXZ":this._x=Math.asin(-r(h,-1,1)),Math.abs(h)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(l,c)):(this._y=Math.atan2(-u,s),this._z=0);break;case"ZXY":this._x=Math.asin(r(p,-1,1)),Math.abs(p)<.9999999?(this._y=Math.atan2(-u,d),this._z=Math.atan2(-o,c)):(this._y=0,this._z=Math.atan2(l,s));break;case"ZYX":this._y=Math.asin(-r(u,-1,1)),Math.abs(u)<.9999999?(this._x=Math.atan2(p,d),this._z=Math.atan2(l,s)):(this._x=0,this._z=Math.atan2(-o,c));break;case"YZX":this._z=Math.asin(r(l,-1,1)),Math.abs(l)<.9999999?(this._x=Math.atan2(-h,c),this._y=Math.atan2(-u,s)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-r(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(p,c),this._y=Math.atan2(a,s)):(this._x=Math.atan2(-h,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!1!==n&&this._onChangeCallback(),this}setFromQuaternion(t,e,n){return Cr.makeRotationFromQuaternion(t),this.setFromRotationMatrix(Cr,e,n)}setFromVector3(t,e){return this.set(t.x,t.y,t.z,e||this._order)}reorder(t){return Pr.setFromEuler(this),this.setFromQuaternion(Pr,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[3]),this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._order,t}toVector3(t){return t?t.set(this._x,this._y,this._z):new Yn(this._x,this._y,this._z)}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}exports.Euler=Dr,Dr.prototype.isEuler=!0,Dr.DefaultOrder="XYZ",Dr.RotationOrders=["XYZ","YZX","ZXY","XZY","YXZ","ZYX"];class Ir{constructor(){this.mask=1}set(t){this.mask=1<<t|0}enable(t){this.mask|=1<<t|0}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t|0}disable(t){this.mask&=~(1<<t|0)}disableAll(){this.mask=0}test(t){return 0!=(this.mask&t.mask)}}exports.Layers=Ir;let Br=0;const Nr=new Yn,Fr=new Xn,Or=new wr,zr=new Yn,Gr=new Yn,Hr=new Yn,Ur=new Xn,kr=new Yn(1,0,0),Vr=new Yn(0,1,0),Wr=new Yn(0,0,1),jr={type:"added"},qr={type:"removed"};function Xr(){Object.defineProperty(this,"id",{value:Br++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Xr.DefaultUp.clone();const t=new Yn,e=new Dr,n=new Xn,r=new Yn(1,1,1);e._onChange(function(){n.setFromEuler(e,!1)}),n._onChange(function(){e.setFromQuaternion(n,void 0,!1)}),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:n},scale:{configurable:!0,enumerable:!0,value:r},modelViewMatrix:{value:new wr},normalMatrix:{value:new zn}}),this.matrix=new wr,this.matrixWorld=new wr,this.matrixAutoUpdate=Xr.DefaultMatrixAutoUpdate,this.matrixWorldNeedsUpdate=!1,this.layers=new Ir,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}Xr.DefaultUp=new Yn(0,1,0),Xr.DefaultMatrixAutoUpdate=!0,Xr.prototype=Object.assign(Object.create(In.prototype),{constructor:Xr,isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix4:function(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(t){return this.quaternion.premultiply(t),this},setRotationFromAxisAngle:function(t,e){this.quaternion.setFromAxisAngle(t,e)},setRotationFromEuler:function(t){this.quaternion.setFromEuler(t,!0)},setRotationFromMatrix:function(t){this.quaternion.setFromRotationMatrix(t)},setRotationFromQuaternion:function(t){this.quaternion.copy(t)},rotateOnAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.multiply(Fr),this},rotateOnWorldAxis:function(t,e){return Fr.setFromAxisAngle(t,e),this.quaternion.premultiply(Fr),this},rotateX:function(t){return this.rotateOnAxis(kr,t)},rotateY:function(t){return this.rotateOnAxis(Vr,t)},rotateZ:function(t){return this.rotateOnAxis(Wr,t)},translateOnAxis:function(t,e){return Nr.copy(t).applyQuaternion(this.quaternion),this.position.add(Nr.multiplyScalar(e)),this},translateX:function(t){return this.translateOnAxis(kr,t)},translateY:function(t){return this.translateOnAxis(Vr,t)},translateZ:function(t){return this.translateOnAxis(Wr,t)},localToWorld:function(t){return t.applyMatrix4(this.matrixWorld)},worldToLocal:function(t){return t.applyMatrix4(Or.copy(this.matrixWorld).invert())},lookAt:function(t,e,n){t.isVector3?zr.copy(t):zr.set(t,e,n);const r=this.parent;this.updateWorldMatrix(!0,!1),Gr.setFromMatrixPosition(this.matrixWorld),this.isCamera||this.isLight?Or.lookAt(Gr,zr,this.up):Or.lookAt(zr,Gr,this.up),this.quaternion.setFromRotationMatrix(Or),r&&(Or.extractRotation(r.matrixWorld),Fr.setFromRotationMatrix(Or),this.quaternion.premultiply(Fr.invert()))},add:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.add(arguments[t]);return this}return t===this?(console.error("THREE.Object3D.add: object can't be added as a child of itself.",t),this):(t&&t.isObject3D?(null!==t.parent&&t.parent.remove(t),t.parent=this,this.children.push(t),t.dispatchEvent(jr)):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t),this)},remove:function(t){if(arguments.length>1){for(let t=0;t<arguments.length;t++)this.remove(arguments[t]);return this}const e=this.children.indexOf(t);return-1!==e&&(t.parent=null,this.children.splice(e,1),t.dispatchEvent(qr)),this},clear:function(){for(let t=0;t<this.children.length;t++){const e=this.children[t];e.parent=null,e.dispatchEvent(qr)}return this.children.length=0,this},attach:function(t){return this.updateWorldMatrix(!0,!1),Or.copy(this.matrixWorld).invert(),null!==t.parent&&(t.parent.updateWorldMatrix(!0,!1),Or.multiply(t.parent.matrixWorld)),t.applyMatrix4(Or),this.add(t),t.updateWorldMatrix(!1,!0),this},getObjectById:function(t){return this.getObjectByProperty("id",t)},getObjectByName:function(t){return this.getObjectByProperty("name",t)},getObjectByProperty:function(t,e){if(this[t]===e)return this;for(let n=0,r=this.children.length;n<r;n++){const r=this.children[n].getObjectByProperty(t,e);if(void 0!==r)return r}},getWorldPosition:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldPosition() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),t.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldQuaternion() target is now required"),t=new Xn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,t,Hr),t},getWorldScale:function(t){return void 0===t&&(console.warn("THREE.Object3D: .getWorldScale() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1),this.matrixWorld.decompose(Gr,Ur,t),t},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Object3D: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(e[8],e[9],e[10]).normalize()},raycast:function(){},traverse:function(t){t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverse(t)},traverseVisible:function(t){if(!1===this.visible)return;t(this);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].traverseVisible(t)},traverseAncestors:function(t){const e=this.parent;null!==e&&(t(e),e.traverseAncestors(t))},updateMatrix:function(){this.matrix.compose(this.position,this.quaternion,this.scale),this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(t){this.matrixAutoUpdate&&this.updateMatrix(),(this.matrixWorldNeedsUpdate||t)&&(null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,t=!0);const e=this.children;for(let n=0,r=e.length;n<r;n++)e[n].updateMatrixWorld(t)},updateWorldMatrix:function(t,e){const n=this.parent;if(!0===t&&null!==n&&n.updateWorldMatrix(!0,!1),this.matrixAutoUpdate&&this.updateMatrix(),null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),!0===e){const t=this.children;for(let e=0,n=t.length;e<n;e++)t[e].updateWorldMatrix(!1,!0)}},toJSON:function(t){const e=void 0===t||"string"==typeof t,n={};e&&(t={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{}},n.metadata={version:4.5,type:"Object",generator:"Object3D.toJSON"});const r={};function i(e,n){return void 0===e[n.uuid]&&(e[n.uuid]=n.toJSON(t)),n.uuid}if(r.uuid=this.uuid,r.type=this.type,""!==this.name&&(r.name=this.name),!0===this.castShadow&&(r.castShadow=!0),!0===this.receiveShadow&&(r.receiveShadow=!0),!1===this.visible&&(r.visible=!1),!1===this.frustumCulled&&(r.frustumCulled=!1),0!==this.renderOrder&&(r.renderOrder=this.renderOrder),"{}"!==JSON.stringify(this.userData)&&(r.userData=this.userData),r.layers=this.layers.mask,r.matrix=this.matrix.toArray(),!1===this.matrixAutoUpdate&&(r.matrixAutoUpdate=!1),this.isInstancedMesh&&(r.type="InstancedMesh",r.count=this.count,r.instanceMatrix=this.instanceMatrix.toJSON()),this.isMesh||this.isLine||this.isPoints){r.geometry=i(t.geometries,this.geometry);const e=this.geometry.parameters;if(void 0!==e&&void 0!==e.shapes){const n=e.shapes;if(Array.isArray(n))for(let e=0,r=n.length;e<r;e++){const r=n[e];i(t.shapes,r)}else i(t.shapes,n)}}if(this.isSkinnedMesh&&(r.bindMode=this.bindMode,r.bindMatrix=this.bindMatrix.toArray(),void 0!==this.skeleton&&(i(t.skeletons,this.skeleton),r.skeleton=this.skeleton.uuid)),void 0!==this.material)if(Array.isArray(this.material)){const e=[];for(let n=0,r=this.material.length;n<r;n++)e.push(i(t.materials,this.material[n]));r.material=e}else r.material=i(t.materials,this.material);if(this.children.length>0){r.children=[];for(let e=0;e<this.children.length;e++)r.children.push(this.children[e].toJSON(t).object)}if(this.animations.length>0){r.animations=[];for(let e=0;e<this.animations.length;e++){const n=this.animations[e];r.animations.push(i(t.animations,n))}}if(e){const e=s(t.geometries),r=s(t.materials),i=s(t.textures),o=s(t.images),a=s(t.shapes),l=s(t.skeletons),c=s(t.animations);e.length>0&&(n.geometries=e),r.length>0&&(n.materials=r),i.length>0&&(n.textures=i),o.length>0&&(n.images=o),a.length>0&&(n.shapes=a),l.length>0&&(n.skeletons=l),c.length>0&&(n.animations=c)}return n.object=r,n;function s(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}},clone:function(t){return(new this.constructor).copy(this,t)},copy:function(t,e=!0){if(this.name=t.name,this.up.copy(t.up),this.position.copy(t.position),this.rotation.order=t.rotation.order,this.quaternion.copy(t.quaternion),this.scale.copy(t.scale),this.matrix.copy(t.matrix),this.matrixWorld.copy(t.matrixWorld),this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrixWorldNeedsUpdate=t.matrixWorldNeedsUpdate,this.layers.mask=t.layers.mask,this.visible=t.visible,this.castShadow=t.castShadow,this.receiveShadow=t.receiveShadow,this.frustumCulled=t.frustumCulled,this.renderOrder=t.renderOrder,this.userData=JSON.parse(JSON.stringify(t.userData)),!0===e)for(let n=0;n<t.children.length;n++){const e=t.children[n];this.add(e.clone())}return this}});const Yr=new Yn,Zr=new Yn,Jr=new zn;class Qr{constructor(t=new Yn(1,0,0),e=0){this.normal=t,this.constant=e}set(t,e){return this.normal.copy(t),this.constant=e,this}setComponents(t,e,n,r){return this.normal.set(t,e,n),this.constant=r,this}setFromNormalAndCoplanarPoint(t,e){return this.normal.copy(t),this.constant=-e.dot(this.normal),this}setFromCoplanarPoints(t,e,n){const r=Yr.subVectors(n,e).cross(Zr.subVectors(t,e)).normalize();return this.setFromNormalAndCoplanarPoint(r,t),this}copy(t){return this.normal.copy(t.normal),this.constant=t.constant,this}normalize(){const t=1/this.normal.length();return this.normal.multiplyScalar(t),this.constant*=t,this}negate(){return this.constant*=-1,this.normal.negate(),this}distanceToPoint(t){return this.normal.dot(t)+this.constant}distanceToSphere(t){return this.distanceToPoint(t.center)-t.radius}projectPoint(t,e){return void 0===e&&(console.warn("THREE.Plane: .projectPoint() target is now required"),e=new Yn),e.copy(this.normal).multiplyScalar(-this.distanceToPoint(t)).add(t)}intersectLine(t,e){void 0===e&&(console.warn("THREE.Plane: .intersectLine() target is now required"),e=new Yn);const n=t.delta(Yr),r=this.normal.dot(n);if(0===r)return 0===this.distanceToPoint(t.start)?e.copy(t.start):void 0;const i=-(t.start.dot(this.normal)+this.constant)/r;return i<0||i>1?void 0:e.copy(n).multiplyScalar(i).add(t.start)}intersectsLine(t){const e=this.distanceToPoint(t.start),n=this.distanceToPoint(t.end);return e<0&&n>0||n<0&&e>0}intersectsBox(t){return t.intersectsPlane(this)}intersectsSphere(t){return t.intersectsPlane(this)}coplanarPoint(t){return void 0===t&&(console.warn("THREE.Plane: .coplanarPoint() target is now required"),t=new Yn),t.copy(this.normal).multiplyScalar(-this.constant)}applyMatrix4(t,e){const n=e||Jr.getNormalMatrix(t),r=this.coplanarPoint(Yr).applyMatrix4(t),i=this.normal.applyMatrix3(n).normalize();return this.constant=-r.dot(i),this}translate(t){return this.constant-=t.dot(this.normal),this}equals(t){return t.normal.equals(this.normal)&&t.constant===this.constant}clone(){return(new this.constructor).copy(this)}}exports.Plane=Qr,Qr.prototype.isPlane=!0;const Kr=new Yn,$r=new Yn,ti=new Yn,ei=new Yn,ni=new Yn,ri=new Yn,ii=new Yn,si=new Yn,oi=new Yn,ai=new Yn;class li{constructor(t=new Yn,e=new Yn,n=new Yn){this.a=t,this.b=e,this.c=n}static getNormal(t,e,n,r){void 0===r&&(console.warn("THREE.Triangle: .getNormal() target is now required"),r=new Yn),r.subVectors(n,e),Kr.subVectors(t,e),r.cross(Kr);const i=r.lengthSq();return i>0?r.multiplyScalar(1/Math.sqrt(i)):r.set(0,0,0)}static getBarycoord(t,e,n,r,i){Kr.subVectors(r,e),$r.subVectors(n,e),ti.subVectors(t,e);const s=Kr.dot(Kr),o=Kr.dot($r),a=Kr.dot(ti),l=$r.dot($r),c=$r.dot(ti),h=s*l-o*o;if(void 0===i&&(console.warn("THREE.Triangle: .getBarycoord() target is now required"),i=new Yn),0===h)return i.set(-2,-1,-1);const u=1/h,p=(l*a-o*c)*u,d=(s*c-o*a)*u;return i.set(1-p-d,d,p)}static containsPoint(t,e,n,r){return this.getBarycoord(t,e,n,r,ei),ei.x>=0&&ei.y>=0&&ei.x+ei.y<=1}static getUV(t,e,n,r,i,s,o,a){return this.getBarycoord(t,e,n,r,ei),a.set(0,0),a.addScaledVector(i,ei.x),a.addScaledVector(s,ei.y),a.addScaledVector(o,ei.z),a}static isFrontFacing(t,e,n,r){return Kr.subVectors(n,e),$r.subVectors(t,e),Kr.cross($r).dot(r)<0}set(t,e,n){return this.a.copy(t),this.b.copy(e),this.c.copy(n),this}setFromPointsAndIndices(t,e,n,r){return this.a.copy(t[e]),this.b.copy(t[n]),this.c.copy(t[r]),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.a.copy(t.a),this.b.copy(t.b),this.c.copy(t.c),this}getArea(){return Kr.subVectors(this.c,this.b),$r.subVectors(this.a,this.b),.5*Kr.cross($r).length()}getMidpoint(t){return void 0===t&&(console.warn("THREE.Triangle: .getMidpoint() target is now required"),t=new Yn),t.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)}getNormal(t){return li.getNormal(this.a,this.b,this.c,t)}getPlane(t){return void 0===t&&(console.warn("THREE.Triangle: .getPlane() target is now required"),t=new Qr),t.setFromCoplanarPoints(this.a,this.b,this.c)}getBarycoord(t,e){return li.getBarycoord(t,this.a,this.b,this.c,e)}getUV(t,e,n,r,i){return li.getUV(t,this.a,this.b,this.c,e,n,r,i)}containsPoint(t){return li.containsPoint(t,this.a,this.b,this.c)}isFrontFacing(t){return li.isFrontFacing(this.a,this.b,this.c,t)}intersectsBox(t){return t.intersectsTriangle(this)}closestPointToPoint(t,e){void 0===e&&(console.warn("THREE.Triangle: .closestPointToPoint() target is now required"),e=new Yn);const n=this.a,r=this.b,i=this.c;let s,o;ni.subVectors(r,n),ri.subVectors(i,n),si.subVectors(t,n);const a=ni.dot(si),l=ri.dot(si);if(a<=0&&l<=0)return e.copy(n);oi.subVectors(t,r);const c=ni.dot(oi),h=ri.dot(oi);if(c>=0&&h<=c)return e.copy(r);const u=a*h-c*l;if(u<=0&&a>=0&&c<=0)return s=a/(a-c),e.copy(n).addScaledVector(ni,s);ai.subVectors(t,i);const p=ni.dot(ai),d=ri.dot(ai);if(d>=0&&p<=d)return e.copy(i);const m=p*l-a*d;if(m<=0&&l>=0&&d<=0)return o=l/(l-d),e.copy(n).addScaledVector(ri,o);const f=c*d-p*h;if(f<=0&&h-c>=0&&p-d>=0)return ii.subVectors(i,r),o=(h-c)/(h-c+(p-d)),e.copy(r).addScaledVector(ii,o);const g=1/(f+m+u);return s=m*g,o=u*g,e.copy(n).addScaledVector(ni,s).addScaledVector(ri,o)}equals(t){return t.a.equals(this.a)&&t.b.equals(this.b)&&t.c.equals(this.c)}}exports.Triangle=li;let ci=0;function hi(){Object.defineProperty(this,"id",{value:ci++}),this.uuid=Fn.generateUUID(),this.name="",this.type="Material",this.fog=!0,this.blending=x,this.side=u,this.vertexColors=!1,this.opacity=1,this.transparent=!1,this.blendSrc=P,this.blendDst=D,this.blendEquation=w,this.blendSrcAlpha=null,this.blendDstAlpha=null,this.blendEquationAlpha=null,this.depthFunc=U,this.depthTest=!0,this.depthWrite=!0,this.stencilWriteMask=255,this.stencilFunc=bn,this.stencilRef=0,this.stencilFuncMask=255,this.stencilFail=an,this.stencilZFail=an,this.stencilZPass=an,this.stencilWrite=!1,this.clippingPlanes=null,this.clipIntersection=!1,this.clipShadows=!1,this.shadowSide=null,this.colorWrite=!0,this.precision=null,this.polygonOffset=!1,this.polygonOffsetFactor=0,this.polygonOffsetUnits=0,this.dithering=!1,this.alphaTest=0,this.premultipliedAlpha=!1,this.visible=!0,this.toneMapped=!0,this.userData={},this.version=0}hi.prototype=Object.assign(Object.create(In.prototype),{constructor:hi,isMaterial:!0,onBeforeCompile:function(){},customProgramCacheKey:function(){return this.onBeforeCompile.toString()},setValues:function(t){if(void 0!==t)for(const e in t){const n=t[e];if(void 0===n){console.warn("THREE.Material: '"+e+"' parameter is undefined.");continue}if("shading"===e){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===n;continue}const r=this[e];void 0!==r?r&&r.isColor?r.set(n):r&&r.isVector3&&n&&n.isVector3?r.copy(n):this[e]=n:console.warn("THREE."+this.type+": '"+e+"' is not a property of this material.")}},toJSON:function(t){const e=void 0===t||"string"==typeof t;e&&(t={textures:{},images:{}});const n={metadata:{version:4.5,type:"Material",generator:"Material.toJSON"}};function r(t){const e=[];for(const n in t){const r=t[n];delete r.metadata,e.push(r)}return e}if(n.uuid=this.uuid,n.type=this.type,""!==this.name&&(n.name=this.name),this.color&&this.color.isColor&&(n.color=this.color.getHex()),void 0!==this.roughness&&(n.roughness=this.roughness),void 0!==this.metalness&&(n.metalness=this.metalness),this.sheen&&this.sheen.isColor&&(n.sheen=this.sheen.getHex()),this.emissive&&this.emissive.isColor&&(n.emissive=this.emissive.getHex()),this.emissiveIntensity&&1!==this.emissiveIntensity&&(n.emissiveIntensity=this.emissiveIntensity),this.specular&&this.specular.isColor&&(n.specular=this.specular.getHex()),void 0!==this.shininess&&(n.shininess=this.shininess),void 0!==this.clearcoat&&(n.clearcoat=this.clearcoat),void 0!==this.clearcoatRoughness&&(n.clearcoatRoughness=this.clearcoatRoughness),this.clearcoatMap&&this.clearcoatMap.isTexture&&(n.clearcoatMap=this.clearcoatMap.toJSON(t).uuid),this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture&&(n.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(t).uuid),this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture&&(n.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(t).uuid,n.clearcoatNormalScale=this.clearcoatNormalScale.toArray()),this.map&&this.map.isTexture&&(n.map=this.map.toJSON(t).uuid),this.matcap&&this.matcap.isTexture&&(n.matcap=this.matcap.toJSON(t).uuid),this.alphaMap&&this.alphaMap.isTexture&&(n.alphaMap=this.alphaMap.toJSON(t).uuid),this.lightMap&&this.lightMap.isTexture&&(n.lightMap=this.lightMap.toJSON(t).uuid,n.lightMapIntensity=this.lightMapIntensity),this.aoMap&&this.aoMap.isTexture&&(n.aoMap=this.aoMap.toJSON(t).uuid,n.aoMapIntensity=this.aoMapIntensity),this.bumpMap&&this.bumpMap.isTexture&&(n.bumpMap=this.bumpMap.toJSON(t).uuid,n.bumpScale=this.bumpScale),this.normalMap&&this.normalMap.isTexture&&(n.normalMap=this.normalMap.toJSON(t).uuid,n.normalMapType=this.normalMapType,n.normalScale=this.normalScale.toArray()),this.displacementMap&&this.displacementMap.isTexture&&(n.displacementMap=this.displacementMap.toJSON(t).uuid,n.displacementScale=this.displacementScale,n.displacementBias=this.displacementBias),this.roughnessMap&&this.roughnessMap.isTexture&&(n.roughnessMap=this.roughnessMap.toJSON(t).uuid),this.metalnessMap&&this.metalnessMap.isTexture&&(n.metalnessMap=this.metalnessMap.toJSON(t).uuid),this.emissiveMap&&this.emissiveMap.isTexture&&(n.emissiveMap=this.emissiveMap.toJSON(t).uuid),this.specularMap&&this.specularMap.isTexture&&(n.specularMap=this.specularMap.toJSON(t).uuid),this.envMap&&this.envMap.isTexture&&(n.envMap=this.envMap.toJSON(t).uuid,n.reflectivity=this.reflectivity,n.refractionRatio=this.refractionRatio,void 0!==this.combine&&(n.combine=this.combine),void 0!==this.envMapIntensity&&(n.envMapIntensity=this.envMapIntensity)),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),void 0!==this.size&&(n.size=this.size),void 0!==this.sizeAttenuation&&(n.sizeAttenuation=this.sizeAttenuation),this.blending!==x&&(n.blending=this.blending),this.side!==u&&(n.side=this.side),this.vertexColors&&(n.vertexColors=!0),this.opacity<1&&(n.opacity=this.opacity),!0===this.transparent&&(n.transparent=this.transparent),n.depthFunc=this.depthFunc,n.depthTest=this.depthTest,n.depthWrite=this.depthWrite,n.stencilWrite=this.stencilWrite,n.stencilWriteMask=this.stencilWriteMask,n.stencilFunc=this.stencilFunc,n.stencilRef=this.stencilRef,n.stencilFuncMask=this.stencilFuncMask,n.stencilFail=this.stencilFail,n.stencilZFail=this.stencilZFail,n.stencilZPass=this.stencilZPass,this.rotation&&0!==this.rotation&&(n.rotation=this.rotation),!0===this.polygonOffset&&(n.polygonOffset=!0),0!==this.polygonOffsetFactor&&(n.polygonOffsetFactor=this.polygonOffsetFactor),0!==this.polygonOffsetUnits&&(n.polygonOffsetUnits=this.polygonOffsetUnits),this.linewidth&&1!==this.linewidth&&(n.linewidth=this.linewidth),void 0!==this.dashSize&&(n.dashSize=this.dashSize),void 0!==this.gapSize&&(n.gapSize=this.gapSize),void 0!==this.scale&&(n.scale=this.scale),!0===this.dithering&&(n.dithering=!0),this.alphaTest>0&&(n.alphaTest=this.alphaTest),!0===this.premultipliedAlpha&&(n.premultipliedAlpha=this.premultipliedAlpha),!0===this.wireframe&&(n.wireframe=this.wireframe),this.wireframeLinewidth>1&&(n.wireframeLinewidth=this.wireframeLinewidth),"round"!==this.wireframeLinecap&&(n.wireframeLinecap=this.wireframeLinecap),"round"!==this.wireframeLinejoin&&(n.wireframeLinejoin=this.wireframeLinejoin),!0===this.morphTargets&&(n.morphTargets=!0),!0===this.morphNormals&&(n.morphNormals=!0),!0===this.skinning&&(n.skinning=!0),!0===this.flatShading&&(n.flatShading=this.flatShading),!1===this.visible&&(n.visible=!1),!1===this.toneMapped&&(n.toneMapped=!1),"{}"!==JSON.stringify(this.userData)&&(n.userData=this.userData),e){const e=r(t.textures),i=r(t.images);e.length>0&&(n.textures=e),i.length>0&&(n.images=i)}return n},clone:function(){return(new this.constructor).copy(this)},copy:function(t){this.name=t.name,this.fog=t.fog,this.blending=t.blending,this.side=t.side,this.vertexColors=t.vertexColors,this.opacity=t.opacity,this.transparent=t.transparent,this.blendSrc=t.blendSrc,this.blendDst=t.blendDst,this.blendEquation=t.blendEquation,this.blendSrcAlpha=t.blendSrcAlpha,this.blendDstAlpha=t.blendDstAlpha,this.blendEquationAlpha=t.blendEquationAlpha,this.depthFunc=t.depthFunc,this.depthTest=t.depthTest,this.depthWrite=t.depthWrite,this.stencilWriteMask=t.stencilWriteMask,this.stencilFunc=t.stencilFunc,this.stencilRef=t.stencilRef,this.stencilFuncMask=t.stencilFuncMask,this.stencilFail=t.stencilFail,this.stencilZFail=t.stencilZFail,this.stencilZPass=t.stencilZPass,this.stencilWrite=t.stencilWrite;const e=t.clippingPlanes;let n=null;if(null!==e){const t=e.length;n=new Array(t);for(let r=0;r!==t;++r)n[r]=e[r].clone()}return this.clippingPlanes=n,this.clipIntersection=t.clipIntersection,this.clipShadows=t.clipShadows,this.shadowSide=t.shadowSide,this.colorWrite=t.colorWrite,this.precision=t.precision,this.polygonOffset=t.polygonOffset,this.polygonOffsetFactor=t.polygonOffsetFactor,this.polygonOffsetUnits=t.polygonOffsetUnits,this.dithering=t.dithering,this.alphaTest=t.alphaTest,this.premultipliedAlpha=t.premultipliedAlpha,this.visible=t.visible,this.toneMapped=t.toneMapped,this.userData=JSON.parse(JSON.stringify(t.userData)),this},dispose:function(){this.dispatchEvent({type:"dispose"})}}),Object.defineProperty(hi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}});const ui={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074},pi={h:0,s:0,l:0},di={h:0,s:0,l:0};function mi(t,e,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?t+6*(e-t)*n:n<.5?e:n<2/3?t+6*(e-t)*(2/3-n):t}function fi(t){return t<.04045?.0773993808*t:Math.pow(.9478672986*t+.0521327014,2.4)}function gi(t){return t<.0031308?12.92*t:1.055*Math.pow(t,.41666)-.055}class xi{constructor(t,e,n){return void 0===e&&void 0===n?this.set(t):this.setRGB(t,e,n)}set(t){return t&&t.isColor?this.copy(t):"number"==typeof t?this.setHex(t):"string"==typeof t&&this.setStyle(t),this}setScalar(t){return this.r=t,this.g=t,this.b=t,this}setHex(t){return t=Math.floor(t),this.r=(t>>16&255)/255,this.g=(t>>8&255)/255,this.b=(255&t)/255,this}setRGB(t,e,n){return this.r=t,this.g=e,this.b=n,this}setHSL(t,e,n){if(t=Fn.euclideanModulo(t,1),e=Fn.clamp(e,0,1),n=Fn.clamp(n,0,1),0===e)this.r=this.g=this.b=n;else{const r=n<=.5?n*(1+e):n+e-n*e,i=2*n-r;this.r=mi(i,r,t+1/3),this.g=mi(i,r,t),this.b=mi(i,r,t-1/3)}return this}setStyle(t){function e(e){void 0!==e&&parseFloat(e)<1&&console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")}let n;if(n=/^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(t)){let t;const r=n[1],i=n[2];switch(r){case"rgb":case"rgba":if(t=/^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(255,parseInt(t[1],10))/255,this.g=Math.min(255,parseInt(t[2],10))/255,this.b=Math.min(255,parseInt(t[3],10))/255,e(t[4]),this;if(t=/^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i))return this.r=Math.min(100,parseInt(t[1],10))/100,this.g=Math.min(100,parseInt(t[2],10))/100,this.b=Math.min(100,parseInt(t[3],10))/100,e(t[4]),this;break;case"hsl":case"hsla":if(t=/^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(i)){const n=parseFloat(t[1])/360,r=parseInt(t[2],10)/100,i=parseInt(t[3],10)/100;return e(t[4]),this.setHSL(n,r,i)}}}else if(n=/^\#([A-Fa-f\d]+)$/.exec(t)){const t=n[1],e=t.length;if(3===e)return this.r=parseInt(t.charAt(0)+t.charAt(0),16)/255,this.g=parseInt(t.charAt(1)+t.charAt(1),16)/255,this.b=parseInt(t.charAt(2)+t.charAt(2),16)/255,this;if(6===e)return this.r=parseInt(t.charAt(0)+t.charAt(1),16)/255,this.g=parseInt(t.charAt(2)+t.charAt(3),16)/255,this.b=parseInt(t.charAt(4)+t.charAt(5),16)/255,this}return t&&t.length>0?this.setColorName(t):this}setColorName(t){const e=ui[t];return void 0!==e?this.setHex(e):console.warn("THREE.Color: Unknown color "+t),this}clone(){return new this.constructor(this.r,this.g,this.b)}copy(t){return this.r=t.r,this.g=t.g,this.b=t.b,this}copyGammaToLinear(t,e=2){return this.r=Math.pow(t.r,e),this.g=Math.pow(t.g,e),this.b=Math.pow(t.b,e),this}copyLinearToGamma(t,e=2){const n=e>0?1/e:1;return this.r=Math.pow(t.r,n),this.g=Math.pow(t.g,n),this.b=Math.pow(t.b,n),this}convertGammaToLinear(t){return this.copyGammaToLinear(this,t),this}convertLinearToGamma(t){return this.copyLinearToGamma(this,t),this}copySRGBToLinear(t){return this.r=fi(t.r),this.g=fi(t.g),this.b=fi(t.b),this}copyLinearToSRGB(t){return this.r=gi(t.r),this.g=gi(t.g),this.b=gi(t.b),this}convertSRGBToLinear(){return this.copySRGBToLinear(this),this}convertLinearToSRGB(){return this.copyLinearToSRGB(this),this}getHex(){return 255*this.r<<16^255*this.g<<8^255*this.b<<0}getHexString(){return("000000"+this.getHex().toString(16)).slice(-6)}getHSL(t){void 0===t&&(console.warn("THREE.Color: .getHSL() target is now required"),t={h:0,s:0,l:0});const e=this.r,n=this.g,r=this.b,i=Math.max(e,n,r),s=Math.min(e,n,r);let o,a;const l=(s+i)/2;if(s===i)o=0,a=0;else{const t=i-s;switch(a=l<=.5?t/(i+s):t/(2-i-s),i){case e:o=(n-r)/t+(n<r?6:0);break;case n:o=(r-e)/t+2;break;case r:o=(e-n)/t+4}o/=6}return t.h=o,t.s=a,t.l=l,t}getStyle(){return"rgb("+(255*this.r|0)+","+(255*this.g|0)+","+(255*this.b|0)+")"}offsetHSL(t,e,n){return this.getHSL(pi),pi.h+=t,pi.s+=e,pi.l+=n,this.setHSL(pi.h,pi.s,pi.l),this}add(t){return this.r+=t.r,this.g+=t.g,this.b+=t.b,this}addColors(t,e){return this.r=t.r+e.r,this.g=t.g+e.g,this.b=t.b+e.b,this}addScalar(t){return this.r+=t,this.g+=t,this.b+=t,this}sub(t){return this.r=Math.max(0,this.r-t.r),this.g=Math.max(0,this.g-t.g),this.b=Math.max(0,this.b-t.b),this}multiply(t){return this.r*=t.r,this.g*=t.g,this.b*=t.b,this}multiplyScalar(t){return this.r*=t,this.g*=t,this.b*=t,this}lerp(t,e){return this.r+=(t.r-this.r)*e,this.g+=(t.g-this.g)*e,this.b+=(t.b-this.b)*e,this}lerpColors(t,e,n){return this.r=t.r+(e.r-t.r)*n,this.g=t.g+(e.g-t.g)*n,this.b=t.b+(e.b-t.b)*n,this}lerpHSL(t,e){this.getHSL(pi),t.getHSL(di);const n=Fn.lerp(pi.h,di.h,e),r=Fn.lerp(pi.s,di.s,e),i=Fn.lerp(pi.l,di.l,e);return this.setHSL(n,r,i),this}equals(t){return t.r===this.r&&t.g===this.g&&t.b===this.b}fromArray(t,e=0){return this.r=t[e],this.g=t[e+1],this.b=t[e+2],this}toArray(t=[],e=0){return t[e]=this.r,t[e+1]=this.g,t[e+2]=this.b,t}fromBufferAttribute(t,e){return this.r=t.getX(e),this.g=t.getY(e),this.b=t.getZ(e),!0===t.normalized&&(this.r/=255,this.g/=255,this.b/=255),this}toJSON(){return this.getHex()}}exports.Color=xi,xi.NAMES=ui,xi.prototype.isColor=!0,xi.prototype.r=1,xi.prototype.g=1,xi.prototype.b=1;class vi extends hi{constructor(t){super(),this.type="MeshBasicMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this}}exports.MeshBasicMaterial=vi,vi.prototype.isMeshBasicMaterial=!0;const yi=new Yn,_i=new On;function bi(t,e,n){if(Array.isArray(t))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.name="",this.array=t,this.itemSize=e,this.count=void 0!==t?t.length/e:0,this.normalized=!0===n,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0}function wi(t,e,n){bi.call(this,new Int8Array(t),e,n)}function Mi(t,e,n){bi.call(this,new Uint8Array(t),e,n)}function Si(t,e,n){bi.call(this,new Uint8ClampedArray(t),e,n)}function Ti(t,e,n){bi.call(this,new Int16Array(t),e,n)}function Ei(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ai(t,e,n){bi.call(this,new Int32Array(t),e,n)}function Li(t,e,n){bi.call(this,new Uint32Array(t),e,n)}function Ri(t,e,n){bi.call(this,new Uint16Array(t),e,n)}function Ci(t,e,n){bi.call(this,new Float32Array(t),e,n)}function Pi(t,e,n){bi.call(this,new Float64Array(t),e,n)}function Di(t){if(0===t.length)return-1/0;let e=t[0];for(let n=1,r=t.length;n<r;++n)t[n]>e&&(e=t[n]);return e}Object.defineProperty(bi.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(bi.prototype,{isBufferAttribute:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.name=t.name,this.array=new t.array.constructor(t.array),this.itemSize=t.itemSize,this.count=t.count,this.normalized=t.normalized,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.itemSize,n*=e.itemSize;for(let r=0,i=this.itemSize;r<i;r++)this.array[t+r]=e.array[n+r];return this},copyArray:function(t){return this.array.set(t),this},copyColorsArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",r),i=new xi),e[n++]=i.r,e[n++]=i.g,e[n++]=i.b}return this},copyVector2sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",r),i=new On),e[n++]=i.x,e[n++]=i.y}return this},copyVector3sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",r),i=new Yn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z}return this},copyVector4sArray:function(t){const e=this.array;let n=0;for(let r=0,i=t.length;r<i;r++){let i=t[r];void 0===i&&(console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",r),i=new Wn),e[n++]=i.x,e[n++]=i.y,e[n++]=i.z,e[n++]=i.w}return this},applyMatrix3:function(t){if(2===this.itemSize)for(let e=0,n=this.count;e<n;e++)_i.fromBufferAttribute(this,e),_i.applyMatrix3(t),this.setXY(e,_i.x,_i.y);else if(3===this.itemSize)for(let e=0,n=this.count;e<n;e++)yi.fromBufferAttribute(this,e),yi.applyMatrix3(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyMatrix4:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyMatrix4(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},applyNormalMatrix:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.applyNormalMatrix(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},transformDirection:function(t){for(let e=0,n=this.count;e<n;e++)yi.x=this.getX(e),yi.y=this.getY(e),yi.z=this.getZ(e),yi.transformDirection(t),this.setXYZ(e,yi.x,yi.y,yi.z);return this},set:function(t,e=0){return this.array.set(t,e),this},getX:function(t){return this.array[t*this.itemSize]},setX:function(t,e){return this.array[t*this.itemSize]=e,this},getY:function(t){return this.array[t*this.itemSize+1]},setY:function(t,e){return this.array[t*this.itemSize+1]=e,this},getZ:function(t){return this.array[t*this.itemSize+2]},setZ:function(t,e){return this.array[t*this.itemSize+2]=e,this},getW:function(t){return this.array[t*this.itemSize+3]},setW:function(t,e){return this.array[t*this.itemSize+3]=e,this},setXY:function(t,e,n){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t*=this.itemSize,this.array[t+0]=e,this.array[t+1]=n,this.array[t+2]=r,this.array[t+3]=i,this},onUpload:function(t){return this.onUploadCallback=t,this},clone:function(){return new this.constructor(this.array,this.itemSize).copy(this)},toJSON:function(){return{itemSize:this.itemSize,type:this.array.constructor.name,array:Array.prototype.slice.call(this.array),normalized:this.normalized}}}),wi.prototype=Object.create(bi.prototype),wi.prototype.constructor=wi,Mi.prototype=Object.create(bi.prototype),Mi.prototype.constructor=Mi,Si.prototype=Object.create(bi.prototype),Si.prototype.constructor=Si,Ti.prototype=Object.create(bi.prototype),Ti.prototype.constructor=Ti,Ei.prototype=Object.create(bi.prototype),Ei.prototype.constructor=Ei,Ai.prototype=Object.create(bi.prototype),Ai.prototype.constructor=Ai,Li.prototype=Object.create(bi.prototype),Li.prototype.constructor=Li,Ri.prototype=Object.create(bi.prototype),Ri.prototype.constructor=Ri,Ri.prototype.isFloat16BufferAttribute=!0,Ci.prototype=Object.create(bi.prototype),Ci.prototype.constructor=Ci,Pi.prototype=Object.create(bi.prototype),Pi.prototype.constructor=Pi;const Ii={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:Uint8ClampedArray,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};function Bi(t,e){return new Ii[t](e)}let Ni=0;const Fi=new wr,Oi=new Xr,zi=new Yn,Gi=new Qn,Hi=new Qn,Ui=new Yn;function ki(){Object.defineProperty(this,"id",{value:Ni++}),this.uuid=Fn.generateUUID(),this.name="",this.type="BufferGeometry",this.index=null,this.attributes={},this.morphAttributes={},this.morphTargetsRelative=!1,this.groups=[],this.boundingBox=null,this.boundingSphere=null,this.drawRange={start:0,count:1/0},this.userData={}}ki.prototype=Object.assign(Object.create(In.prototype),{constructor:ki,isBufferGeometry:!0,getIndex:function(){return this.index},setIndex:function(t){return Array.isArray(t)?this.index=new(Di(t)>65535?Li:Ei)(t,1):this.index=t,this},getAttribute:function(t){return this.attributes[t]},setAttribute:function(t,e){return this.attributes[t]=e,this},deleteAttribute:function(t){return delete this.attributes[t],this},hasAttribute:function(t){return void 0!==this.attributes[t]},addGroup:function(t,e,n=0){this.groups.push({start:t,count:e,materialIndex:n})},clearGroups:function(){this.groups=[]},setDrawRange:function(t,e){this.drawRange.start=t,this.drawRange.count=e},applyMatrix4:function(t){const e=this.attributes.position;void 0!==e&&(e.applyMatrix4(t),e.needsUpdate=!0);const n=this.attributes.normal;if(void 0!==n){const e=(new zn).getNormalMatrix(t);n.applyNormalMatrix(e),n.needsUpdate=!0}const r=this.attributes.tangent;return void 0!==r&&(r.transformDirection(t),r.needsUpdate=!0),null!==this.boundingBox&&this.computeBoundingBox(),null!==this.boundingSphere&&this.computeBoundingSphere(),this},rotateX:function(t){return Fi.makeRotationX(t),this.applyMatrix4(Fi),this},rotateY:function(t){return Fi.makeRotationY(t),this.applyMatrix4(Fi),this},rotateZ:function(t){return Fi.makeRotationZ(t),this.applyMatrix4(Fi),this},translate:function(t,e,n){return Fi.makeTranslation(t,e,n),this.applyMatrix4(Fi),this},scale:function(t,e,n){return Fi.makeScale(t,e,n),this.applyMatrix4(Fi),this},lookAt:function(t){return Oi.lookAt(t),Oi.updateMatrix(),this.applyMatrix4(Oi.matrix),this},center:function(){return this.computeBoundingBox(),this.boundingBox.getCenter(zi).negate(),this.translate(zi.x,zi.y,zi.z),this},setFromPoints:function(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n];e.push(r.x,r.y,r.z||0)}return this.setAttribute("position",new Ci(e,3)),this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new Qn);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingBox.set(new Yn(-1/0,-1/0,-1/0),new Yn(1/0,1/0,1/0));if(void 0!==t){if(this.boundingBox.setFromBufferAttribute(t),e)for(let n=0,r=e.length;n<r;n++){const t=e[n];Gi.setFromBufferAttribute(t),this.morphTargetsRelative?(Ui.addVectors(this.boundingBox.min,Gi.min),this.boundingBox.expandByPoint(Ui),Ui.addVectors(this.boundingBox.max,Gi.max),this.boundingBox.expandByPoint(Ui)):(this.boundingBox.expandByPoint(Gi.min),this.boundingBox.expandByPoint(Gi.max))}}else this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new dr);const t=this.attributes.position,e=this.morphAttributes.position;if(t&&t.isGLBufferAttribute)return console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".',this),void this.boundingSphere.set(new Yn,1/0);if(t){const n=this.boundingSphere.center;if(Gi.setFromBufferAttribute(t),e)for(let t=0,i=e.length;t<i;t++){const n=e[t];Hi.setFromBufferAttribute(n),this.morphTargetsRelative?(Ui.addVectors(Gi.min,Hi.min),Gi.expandByPoint(Ui),Ui.addVectors(Gi.max,Hi.max),Gi.expandByPoint(Ui)):(Gi.expandByPoint(Hi.min),Gi.expandByPoint(Hi.max))}Gi.getCenter(n);let r=0;for(let e=0,i=t.count;e<i;e++)Ui.fromBufferAttribute(t,e),r=Math.max(r,n.distanceToSquared(Ui));if(e)for(let i=0,s=e.length;i<s;i++){const s=e[i],o=this.morphTargetsRelative;for(let e=0,i=s.count;e<i;e++)Ui.fromBufferAttribute(s,e),o&&(zi.fromBufferAttribute(t,e),Ui.add(zi)),r=Math.max(r,n.distanceToSquared(Ui))}this.boundingSphere.radius=Math.sqrt(r),isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}},computeFaceNormals:function(){},computeTangents:function(){const t=this.index,e=this.attributes;if(null===t||void 0===e.position||void 0===e.normal||void 0===e.uv)return void console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");const n=t.array,r=e.position.array,i=e.normal.array,s=e.uv.array,o=r.length/3;void 0===e.tangent&&this.setAttribute("tangent",new bi(new Float32Array(4*o),4));const a=e.tangent.array,l=[],c=[];for(let T=0;T<o;T++)l[T]=new Yn,c[T]=new Yn;const h=new Yn,u=new Yn,p=new Yn,d=new On,m=new On,f=new On,g=new Yn,x=new Yn;function v(t,e,n){h.fromArray(r,3*t),u.fromArray(r,3*e),p.fromArray(r,3*n),d.fromArray(s,2*t),m.fromArray(s,2*e),f.fromArray(s,2*n),u.sub(h),p.sub(h),m.sub(d),f.sub(d);const i=1/(m.x*f.y-f.x*m.y);isFinite(i)&&(g.copy(u).multiplyScalar(f.y).addScaledVector(p,-m.y).multiplyScalar(i),x.copy(p).multiplyScalar(m.x).addScaledVector(u,-f.x).multiplyScalar(i),l[t].add(g),l[e].add(g),l[n].add(g),c[t].add(x),c[e].add(x),c[n].add(x))}let y=this.groups;0===y.length&&(y=[{start:0,count:n.length}]);for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)v(n[r+0],n[r+1],n[r+2])}const _=new Yn,b=new Yn,w=new Yn,M=new Yn;function S(t){w.fromArray(i,3*t),M.copy(w);const e=l[t];_.copy(e),_.sub(w.multiplyScalar(w.dot(e))).normalize(),b.crossVectors(M,e);const n=b.dot(c[t])<0?-1:1;a[4*t]=_.x,a[4*t+1]=_.y,a[4*t+2]=_.z,a[4*t+3]=n}for(let T=0,E=y.length;T<E;++T){const t=y[T],e=t.start;for(let r=e,i=e+t.count;r<i;r+=3)S(n[r+0]),S(n[r+1]),S(n[r+2])}},computeVertexNormals:function(){const t=this.index,e=this.getAttribute("position");if(void 0!==e){let n=this.getAttribute("normal");if(void 0===n)n=new bi(new Float32Array(3*e.count),3),this.setAttribute("normal",n);else for(let t=0,e=n.count;t<e;t++)n.setXYZ(t,0,0,0);const r=new Yn,i=new Yn,s=new Yn,o=new Yn,a=new Yn,l=new Yn,c=new Yn,h=new Yn;if(t)for(let u=0,p=t.count;u<p;u+=3){const p=t.getX(u+0),d=t.getX(u+1),m=t.getX(u+2);r.fromBufferAttribute(e,p),i.fromBufferAttribute(e,d),s.fromBufferAttribute(e,m),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),o.fromBufferAttribute(n,p),a.fromBufferAttribute(n,d),l.fromBufferAttribute(n,m),o.add(c),a.add(c),l.add(c),n.setXYZ(p,o.x,o.y,o.z),n.setXYZ(d,a.x,a.y,a.z),n.setXYZ(m,l.x,l.y,l.z)}else for(let t=0,u=e.count;t<u;t+=3)r.fromBufferAttribute(e,t+0),i.fromBufferAttribute(e,t+1),s.fromBufferAttribute(e,t+2),c.subVectors(s,i),h.subVectors(r,i),c.cross(h),n.setXYZ(t+0,c.x,c.y,c.z),n.setXYZ(t+1,c.x,c.y,c.z),n.setXYZ(t+2,c.x,c.y,c.z);this.normalizeNormals(),n.needsUpdate=!0}},merge:function(t,e){if(!t||!t.isBufferGeometry)return void console.error("THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.",t);void 0===e&&(e=0,console.warn("THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge."));const n=this.attributes;for(const r in n){if(void 0===t.attributes[r])continue;const i=n[r].array,s=t.attributes[r],o=s.array,a=s.itemSize*e,l=Math.min(o.length,i.length-a);for(let t=0,e=a;t<l;t++,e++)i[e]=o[t]}return this},normalizeNormals:function(){const t=this.attributes.normal;for(let e=0,n=t.count;e<n;e++)Ui.fromBufferAttribute(t,e),Ui.normalize(),t.setXYZ(e,Ui.x,Ui.y,Ui.z)},toNonIndexed:function(){function t(t,e){const n=t.array,r=t.itemSize,i=t.normalized,s=new n.constructor(e.length*r);let o=0,a=0;for(let l=0,c=e.length;l<c;l++){o=e[l]*r;for(let t=0;t<r;t++)s[a++]=n[o++]}return new bi(s,r,i)}if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed."),this;const e=new ki,n=this.index.array,r=this.attributes;for(const o in r){const i=t(r[o],n);e.setAttribute(o,i)}const i=this.morphAttributes;for(const o in i){const r=[],s=i[o];for(let e=0,i=s.length;e<i;e++){const i=t(s[e],n);r.push(i)}e.morphAttributes[o]=r}e.morphTargetsRelative=this.morphTargetsRelative;const s=this.groups;for(let o=0,a=s.length;o<a;o++){const t=s[o];e.addGroup(t.start,t.count,t.materialIndex)}return e},toJSON:function(){const t={metadata:{version:4.5,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};if(t.uuid=this.uuid,t.type=this.type,""!==this.name&&(t.name=this.name),Object.keys(this.userData).length>0&&(t.userData=this.userData),void 0!==this.parameters){const e=this.parameters;for(const n in e)void 0!==e[n]&&(t[n]=e[n]);return t}t.data={attributes:{}};const e=this.index;null!==e&&(t.data.index={type:e.array.constructor.name,array:Array.prototype.slice.call(e.array)});const n=this.attributes;for(const a in n){const e=n[a],r=e.toJSON(t.data);""!==e.name&&(r.name=e.name),t.data.attributes[a]=r}const r={};let i=!1;for(const a in this.morphAttributes){const e=this.morphAttributes[a],n=[];for(let r=0,i=e.length;r<i;r++){const i=e[r],s=i.toJSON(t.data);""!==i.name&&(s.name=i.name),n.push(s)}n.length>0&&(r[a]=n,i=!0)}i&&(t.data.morphAttributes=r,t.data.morphTargetsRelative=this.morphTargetsRelative);const s=this.groups;s.length>0&&(t.data.groups=JSON.parse(JSON.stringify(s)));const o=this.boundingSphere;return null!==o&&(t.data.boundingSphere={center:o.center.toArray(),radius:o.radius}),t},clone:function(){return(new ki).copy(this)},copy:function(t){this.index=null,this.attributes={},this.morphAttributes={},this.groups=[],this.boundingBox=null,this.boundingSphere=null;const e={};this.name=t.name;const n=t.index;null!==n&&this.setIndex(n.clone(e));const r=t.attributes;for(const l in r){const t=r[l];this.setAttribute(l,t.clone(e))}const i=t.morphAttributes;for(const l in i){const t=[],n=i[l];for(let r=0,i=n.length;r<i;r++)t.push(n[r].clone(e));this.morphAttributes[l]=t}this.morphTargetsRelative=t.morphTargetsRelative;const s=t.groups;for(let l=0,c=s.length;l<c;l++){const t=s[l];this.addGroup(t.start,t.count,t.materialIndex)}const o=t.boundingBox;null!==o&&(this.boundingBox=o.clone());const a=t.boundingSphere;return null!==a&&(this.boundingSphere=a.clone()),this.drawRange.start=t.drawRange.start,this.drawRange.count=t.drawRange.count,this.userData=t.userData,this},dispose:function(){this.dispatchEvent({type:"dispose"})}});const Vi=new wr,Wi=new br,ji=new dr,qi=new Yn,Xi=new Yn,Yi=new Yn,Zi=new Yn,Ji=new Yn,Qi=new Yn,Ki=new Yn,$i=new Yn,ts=new Yn,es=new On,ns=new On,rs=new On,is=new Yn,ss=new Yn;function os(t=new ki,e=new vi){Xr.call(this),this.type="Mesh",this.geometry=t,this.material=e,this.updateMorphTargets()}function as(t,e,n,r,i,s,o,a){let l;if(null===(l=e.side===p?r.intersectTriangle(o,s,i,!0,a):r.intersectTriangle(i,s,o,e.side!==d,a)))return null;ss.copy(a),ss.applyMatrix4(t.matrixWorld);const c=n.ray.origin.distanceTo(ss);return c<n.near||c>n.far?null:{distance:c,point:ss.clone(),object:t}}function ls(t,e,n,r,i,s,o,a,l,c,h,u){qi.fromBufferAttribute(i,c),Xi.fromBufferAttribute(i,h),Yi.fromBufferAttribute(i,u);const p=t.morphTargetInfluences;if(e.morphTargets&&s&&p){Ki.set(0,0,0),$i.set(0,0,0),ts.set(0,0,0);for(let t=0,e=s.length;t<e;t++){const e=p[t],n=s[t];0!==e&&(Zi.fromBufferAttribute(n,c),Ji.fromBufferAttribute(n,h),Qi.fromBufferAttribute(n,u),o?(Ki.addScaledVector(Zi,e),$i.addScaledVector(Ji,e),ts.addScaledVector(Qi,e)):(Ki.addScaledVector(Zi.sub(qi),e),$i.addScaledVector(Ji.sub(Xi),e),ts.addScaledVector(Qi.sub(Yi),e)))}qi.add(Ki),Xi.add($i),Yi.add(ts)}t.isSkinnedMesh&&e.skinning&&(t.boneTransform(c,qi),t.boneTransform(h,Xi),t.boneTransform(u,Yi));const d=as(t,e,n,r,qi,Xi,Yi,is);if(d){a&&(es.fromBufferAttribute(a,c),ns.fromBufferAttribute(a,h),rs.fromBufferAttribute(a,u),d.uv=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On)),l&&(es.fromBufferAttribute(l,c),ns.fromBufferAttribute(l,h),rs.fromBufferAttribute(l,u),d.uv2=li.getUV(is,qi,Xi,Yi,es,ns,rs,new On));const t={a:c,b:h,c:u,normal:new Yn,materialIndex:0};li.getNormal(qi,Xi,Yi,t.normal),d.face=t}return d}os.prototype=Object.assign(Object.create(Xr.prototype),{constructor:os,isMesh:!0,copy:function(t){return Xr.prototype.copy.call(this,t),void 0!==t.morphTargetInfluences&&(this.morphTargetInfluences=t.morphTargetInfluences.slice()),void 0!==t.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},t.morphTargetDictionary)),this.material=t.material,this.geometry=t.geometry,this},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}},raycast:function(t,e){const n=this.geometry,r=this.material,i=this.matrixWorld;if(void 0===r)return;if(null===n.boundingSphere&&n.computeBoundingSphere(),ji.copy(n.boundingSphere),ji.applyMatrix4(i),!1===t.ray.intersectsSphere(ji))return;if(Vi.copy(i).invert(),Wi.copy(t.ray).applyMatrix4(Vi),null!==n.boundingBox&&!1===Wi.intersectsBox(n.boundingBox))return;let s;if(n.isBufferGeometry){const i=n.index,o=n.attributes.position,a=n.morphAttributes.position,l=n.morphTargetsRelative,c=n.attributes.uv,h=n.attributes.uv2,u=n.groups,p=n.drawRange;if(null!==i)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const d=u[n],m=r[d.materialIndex];for(let n=Math.max(d.start,p.start),r=Math.min(d.start+d.count,p.start+p.count);n<r;n+=3){const r=i.getX(n),u=i.getX(n+1),p=i.getX(n+2);(s=ls(this,m,t,Wi,o,a,l,c,h,r,u,p))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=d.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),u=Math.min(i.count,p.start+p.count);n<u;n+=3){const u=i.getX(n),p=i.getX(n+1),d=i.getX(n+2);(s=ls(this,r,t,Wi,o,a,l,c,h,u,p,d))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}else if(void 0!==o)if(Array.isArray(r))for(let n=0,d=u.length;n<d;n++){const i=u[n],d=r[i.materialIndex];for(let n=Math.max(i.start,p.start),r=Math.min(i.start+i.count,p.start+p.count);n<r;n+=3){(s=ls(this,d,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),s.face.materialIndex=i.materialIndex,e.push(s))}}else{for(let n=Math.max(0,p.start),i=Math.min(o.count,p.start+p.count);n<i;n+=3){(s=ls(this,r,t,Wi,o,a,l,c,h,n,n+1,n+2))&&(s.faceIndex=Math.floor(n/3),e.push(s))}}}else n.isGeometry&&console.error("THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")}});class cs extends ki{constructor(t=1,e=1,n=1,r=1,i=1,s=1){super(),this.type="BoxGeometry",this.parameters={width:t,height:e,depth:n,widthSegments:r,heightSegments:i,depthSegments:s};const o=this;r=Math.floor(r),i=Math.floor(i),s=Math.floor(s);const a=[],l=[],c=[],h=[];let u=0,p=0;function d(t,e,n,r,i,s,d,m,f,g,x){const v=s/f,y=d/g,_=s/2,b=d/2,w=m/2,M=f+1,S=g+1;let T=0,E=0;const A=new Yn;for(let o=0;o<S;o++){const s=o*y-b;for(let a=0;a<M;a++){const u=a*v-_;A[t]=u*r,A[e]=s*i,A[n]=w,l.push(A.x,A.y,A.z),A[t]=0,A[e]=0,A[n]=m>0?1:-1,c.push(A.x,A.y,A.z),h.push(a/f),h.push(1-o/g),T+=1}}for(let o=0;o<g;o++)for(let t=0;t<f;t++){const e=u+t+M*o,n=u+t+M*(o+1),r=u+(t+1)+M*(o+1),i=u+(t+1)+M*o;a.push(e,n,i),a.push(n,r,i),E+=6}o.addGroup(p,E,x),p+=E,u+=T}d("z","y","x",-1,-1,n,e,t,s,i,0),d("z","y","x",1,-1,n,e,-t,s,i,1),d("x","z","y",1,1,t,n,e,r,s,2),d("x","z","y",1,-1,t,n,-e,r,s,3),d("x","y","z",1,-1,t,e,n,r,i,4),d("x","y","z",-1,-1,t,e,-n,r,i,5),this.setIndex(a),this.setAttribute("position",new Ci(l,3)),this.setAttribute("normal",new Ci(c,3)),this.setAttribute("uv",new Ci(h,2))}}function hs(t){const e={};for(const n in t){e[n]={};for(const r in t[n]){const i=t[n][r];i&&(i.isColor||i.isMatrix3||i.isMatrix4||i.isVector2||i.isVector3||i.isVector4||i.isTexture||i.isQuaternion)?e[n][r]=i.clone():Array.isArray(i)?e[n][r]=i.slice():e[n][r]=i}}return e}function us(t){const e={};for(let n=0;n<t.length;n++){const r=hs(t[n]);for(const t in r)e[t]=r[t]}return e}exports.BoxGeometry=exports.BoxBufferGeometry=cs;const ps={clone:hs,merge:us};exports.UniformsUtils=ps;var ds="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}",ms="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";function fs(t){hi.call(this),this.type="ShaderMaterial",this.defines={},this.uniforms={},this.vertexShader=ds,this.fragmentShader=ms,this.linewidth=1,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.lights=!1,this.clipping=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.extensions={derivatives:!1,fragDepth:!1,drawBuffers:!1,shaderTextureLOD:!1},this.defaultAttributeValues={color:[1,1,1],uv:[0,0],uv2:[0,0]},this.index0AttributeName=void 0,this.uniformsNeedUpdate=!1,this.glslVersion=null,void 0!==t&&(void 0!==t.attributes&&console.error("THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead."),this.setValues(t))}function gs(){Xr.call(this),this.type="Camera",this.matrixWorldInverse=new wr,this.projectionMatrix=new wr,this.projectionMatrixInverse=new wr}function xs(t=50,e=1,n=.1,r=2e3){gs.call(this),this.type="PerspectiveCamera",this.fov=t,this.zoom=1,this.near=n,this.far=r,this.focus=10,this.aspect=e,this.view=null,this.filmGauge=35,this.filmOffset=0,this.updateProjectionMatrix()}fs.prototype=Object.create(hi.prototype),fs.prototype.constructor=fs,fs.prototype.isShaderMaterial=!0,fs.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.fragmentShader=t.fragmentShader,this.vertexShader=t.vertexShader,this.uniforms=hs(t.uniforms),this.defines=Object.assign({},t.defines),this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.lights=t.lights,this.clipping=t.clipping,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.extensions=Object.assign({},t.extensions),this.glslVersion=t.glslVersion,this},fs.prototype.toJSON=function(t){const e=hi.prototype.toJSON.call(this,t);e.glslVersion=this.glslVersion,e.uniforms={};for(const r in this.uniforms){const n=this.uniforms[r].value;n&&n.isTexture?e.uniforms[r]={type:"t",value:n.toJSON(t).uuid}:n&&n.isColor?e.uniforms[r]={type:"c",value:n.getHex()}:n&&n.isVector2?e.uniforms[r]={type:"v2",value:n.toArray()}:n&&n.isVector3?e.uniforms[r]={type:"v3",value:n.toArray()}:n&&n.isVector4?e.uniforms[r]={type:"v4",value:n.toArray()}:n&&n.isMatrix3?e.uniforms[r]={type:"m3",value:n.toArray()}:n&&n.isMatrix4?e.uniforms[r]={type:"m4",value:n.toArray()}:e.uniforms[r]={value:n}}Object.keys(this.defines).length>0&&(e.defines=this.defines),e.vertexShader=this.vertexShader,e.fragmentShader=this.fragmentShader;const n={};for(const r in this.extensions)!0===this.extensions[r]&&(n[r]=!0);return Object.keys(n).length>0&&(e.extensions=n),e},gs.prototype=Object.assign(Object.create(Xr.prototype),{constructor:gs,isCamera:!0,copy:function(t,e){return Xr.prototype.copy.call(this,t,e),this.matrixWorldInverse.copy(t.matrixWorldInverse),this.projectionMatrix.copy(t.projectionMatrix),this.projectionMatrixInverse.copy(t.projectionMatrixInverse),this},getWorldDirection:function(t){void 0===t&&(console.warn("THREE.Camera: .getWorldDirection() target is now required"),t=new Yn),this.updateWorldMatrix(!0,!1);const e=this.matrixWorld.elements;return t.set(-e[8],-e[9],-e[10]).normalize()},updateMatrixWorld:function(t){Xr.prototype.updateMatrixWorld.call(this,t),this.matrixWorldInverse.copy(this.matrixWorld).invert()},updateWorldMatrix:function(t,e){Xr.prototype.updateWorldMatrix.call(this,t,e),this.matrixWorldInverse.copy(this.matrixWorld).invert()},clone:function(){return(new this.constructor).copy(this)}}),xs.prototype=Object.assign(Object.create(gs.prototype),{constructor:xs,isPerspectiveCamera:!0,copy:function(t,e){return gs.prototype.copy.call(this,t,e),this.fov=t.fov,this.zoom=t.zoom,this.near=t.near,this.far=t.far,this.focus=t.focus,this.aspect=t.aspect,this.view=null===t.view?null:Object.assign({},t.view),this.filmGauge=t.filmGauge,this.filmOffset=t.filmOffset,this},setFocalLength:function(t){const e=.5*this.getFilmHeight()/t;this.fov=2*Fn.RAD2DEG*Math.atan(e),this.updateProjectionMatrix()},getFocalLength:function(){const t=Math.tan(.5*Fn.DEG2RAD*this.fov);return.5*this.getFilmHeight()/t},getEffectiveFOV:function(){return 2*Fn.RAD2DEG*Math.atan(Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(t,e,n,r,i,s){this.aspect=t/e,null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()},updateProjectionMatrix:function(){const t=this.near;let e=t*Math.tan(.5*Fn.DEG2RAD*this.fov)/this.zoom,n=2*e,r=this.aspect*n,i=-.5*r;const s=this.view;if(null!==this.view&&this.view.enabled){const t=s.fullWidth,o=s.fullHeight;i+=s.offsetX*r/t,e-=s.offsetY*n/o,r*=s.width/t,n*=s.height/o}const o=this.filmOffset;0!==o&&(i+=t*o/this.getFilmWidth()),this.projectionMatrix.makePerspective(i,i+r,e,e-n,t,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()},toJSON:function(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.fov=this.fov,e.object.zoom=this.zoom,e.object.near=this.near,e.object.far=this.far,e.object.focus=this.focus,e.object.aspect=this.aspect,null!==this.view&&(e.object.view=Object.assign({},this.view)),e.object.filmGauge=this.filmGauge,e.object.filmOffset=this.filmOffset,e}});const vs=90,ys=1;class _s extends Xr{constructor(t,e,n){if(super(),this.type="CubeCamera",!0!==n.isWebGLCubeRenderTarget)return void console.error("THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.");this.renderTarget=n;const r=new xs(vs,ys,t,e);r.layers=this.layers,r.up.set(0,-1,0),r.lookAt(new Yn(1,0,0)),this.add(r);const i=new xs(vs,ys,t,e);i.layers=this.layers,i.up.set(0,-1,0),i.lookAt(new Yn(-1,0,0)),this.add(i);const s=new xs(vs,ys,t,e);s.layers=this.layers,s.up.set(0,0,1),s.lookAt(new Yn(0,1,0)),this.add(s);const o=new xs(vs,ys,t,e);o.layers=this.layers,o.up.set(0,0,-1),o.lookAt(new Yn(0,-1,0)),this.add(o);const a=new xs(vs,ys,t,e);a.layers=this.layers,a.up.set(0,-1,0),a.lookAt(new Yn(0,0,1)),this.add(a);const l=new xs(vs,ys,t,e);l.layers=this.layers,l.up.set(0,-1,0),l.lookAt(new Yn(0,0,-1)),this.add(l)}update(t,e){null===this.parent&&this.updateMatrixWorld();const n=this.renderTarget,[r,i,s,o,a,l]=this.children,c=t.xr.enabled,h=t.getRenderTarget();t.xr.enabled=!1;const u=n.texture.generateMipmaps;n.texture.generateMipmaps=!1,t.setRenderTarget(n,0),t.render(e,r),t.setRenderTarget(n,1),t.render(e,i),t.setRenderTarget(n,2),t.render(e,s),t.setRenderTarget(n,3),t.render(e,o),t.setRenderTarget(n,4),t.render(e,a),n.texture.generateMipmaps=u,t.setRenderTarget(n,5),t.render(e,l),t.setRenderTarget(h),t.xr.enabled=c}}exports.CubeCamera=_s;class bs extends kn{constructor(t,e,n,r,i,s,o,a,l,c){super(t=void 0!==t?t:[],e=void 0!==e?e:nt,n,r,i,s,o=void 0!==o?o:Bt,a,l,c),this._needsFlipEnvMap=!0,this.flipY=!1}get images(){return this.image}set images(t){this.image=t}}exports.CubeTexture=bs,bs.prototype.isCubeTexture=!0;class ws extends jn{constructor(t,e,n){Number.isInteger(e)&&(console.warn("THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )"),e=n),super(t,t,e),e=e||{},this.texture=new bs(void 0,e.mapping,e.wrapS,e.wrapT,e.magFilter,e.minFilter,e.format,e.type,e.anisotropy,e.encoding),this.texture.generateMipmaps=void 0!==e.generateMipmaps&&e.generateMipmaps,this.texture.minFilter=void 0!==e.minFilter?e.minFilter:gt,this.texture._needsFlipEnvMap=!1}fromEquirectangularTexture(t,e){this.texture.type=e.type,this.texture.format=Nt,this.texture.encoding=e.encoding,this.texture.generateMipmaps=e.generateMipmaps,this.texture.minFilter=e.minFilter,this.texture.magFilter=e.magFilter;const n={uniforms:{tEquirect:{value:null}},vertexShader:"\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t}\n\t\t\t",fragmentShader:"\n\n\t\t\t\tuniform sampler2D tEquirect;\n\n\t\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t\t#include <common>\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t\t}\n\t\t\t"},r=new cs(5,5,5),i=new fs({name:"CubemapFromEquirect",uniforms:hs(n.uniforms),vertexShader:n.vertexShader,fragmentShader:n.fragmentShader,side:p,blending:g});i.uniforms.tEquirect.value=e;const s=new os(r,i),o=e.minFilter;return e.minFilter===yt&&(e.minFilter=gt),new _s(1,10,this).update(t,s),e.minFilter=o,s.geometry.dispose(),s.material.dispose(),this}clear(t,e,n,r){const i=t.getRenderTarget();for(let s=0;s<6;s++)t.setRenderTarget(this,s),t.clear(e,n,r);t.setRenderTarget(i)}}exports.WebGLCubeRenderTarget=ws,ws.prototype.isWebGLCubeRenderTarget=!0;class Ms extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={data:t||null,width:e||1,height:n||1},this.magFilter=void 0!==l?l:ut,this.minFilter=void 0!==c?c:ut,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.needsUpdate=!0}}exports.DataTexture=Ms,Ms.prototype.isDataTexture=!0;const Ss=new dr,Ts=new Yn;class Es{constructor(t=new Qr,e=new Qr,n=new Qr,r=new Qr,i=new Qr,s=new Qr){this.planes=[t,e,n,r,i,s]}set(t,e,n,r,i,s){const o=this.planes;return o[0].copy(t),o[1].copy(e),o[2].copy(n),o[3].copy(r),o[4].copy(i),o[5].copy(s),this}copy(t){const e=this.planes;for(let n=0;n<6;n++)e[n].copy(t.planes[n]);return this}setFromProjectionMatrix(t){const e=this.planes,n=t.elements,r=n[0],i=n[1],s=n[2],o=n[3],a=n[4],l=n[5],c=n[6],h=n[7],u=n[8],p=n[9],d=n[10],m=n[11],f=n[12],g=n[13],x=n[14],v=n[15];return e[0].setComponents(o-r,h-a,m-u,v-f).normalize(),e[1].setComponents(o+r,h+a,m+u,v+f).normalize(),e[2].setComponents(o+i,h+l,m+p,v+g).normalize(),e[3].setComponents(o-i,h-l,m-p,v-g).normalize(),e[4].setComponents(o-s,h-c,m-d,v-x).normalize(),e[5].setComponents(o+s,h+c,m+d,v+x).normalize(),this}intersectsObject(t){const e=t.geometry;return null===e.boundingSphere&&e.computeBoundingSphere(),Ss.copy(e.boundingSphere).applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSprite(t){return Ss.center.set(0,0,0),Ss.radius=.7071067811865476,Ss.applyMatrix4(t.matrixWorld),this.intersectsSphere(Ss)}intersectsSphere(t){const e=this.planes,n=t.center,r=-t.radius;for(let i=0;i<6;i++){if(e[i].distanceToPoint(n)<r)return!1}return!0}intersectsBox(t){const e=this.planes;for(let n=0;n<6;n++){const r=e[n];if(Ts.x=r.normal.x>0?t.max.x:t.min.x,Ts.y=r.normal.y>0?t.max.y:t.min.y,Ts.z=r.normal.z>0?t.max.z:t.min.z,r.distanceToPoint(Ts)<0)return!1}return!0}containsPoint(t){const e=this.planes;for(let n=0;n<6;n++)if(e[n].distanceToPoint(t)<0)return!1;return!0}clone(){return(new this.constructor).copy(this)}}function As(){let t=null,e=!1,n=null,r=null;function i(e,s){n(e,s),r=t.requestAnimationFrame(i)}return{start:function(){!0!==e&&null!==n&&(r=t.requestAnimationFrame(i),e=!0)},stop:function(){t.cancelAnimationFrame(r),e=!1},setAnimationLoop:function(t){n=t},setContext:function(e){t=e}}}function Ls(t,e){const n=e.isWebGL2,r=new WeakMap;return{get:function(t){return t.isInterleavedBufferAttribute&&(t=t.data),r.get(t)},remove:function(e){e.isInterleavedBufferAttribute&&(e=e.data);const n=r.get(e);n&&(t.deleteBuffer(n.buffer),r.delete(e))},update:function(e,i){if(e.isGLBufferAttribute){const t=r.get(e);return void((!t||t.version<e.version)&&r.set(e,{buffer:e.buffer,type:e.type,bytesPerElement:e.elementSize,version:e.version}))}e.isInterleavedBufferAttribute&&(e=e.data);const s=r.get(e);void 0===s?r.set(e,function(e,r){const i=e.array,s=e.usage,o=t.createBuffer();t.bindBuffer(r,o),t.bufferData(r,i,s),e.onUploadCallback();let a=5126;return i instanceof Float32Array?a=5126:i instanceof Float64Array?console.warn("THREE.WebGLAttributes: Unsupported data buffer format: Float64Array."):i instanceof Uint16Array?e.isFloat16BufferAttribute?n?a=5131:console.warn("THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2."):a=5123:i instanceof Int16Array?a=5122:i instanceof Uint32Array?a=5125:i instanceof Int32Array?a=5124:i instanceof Int8Array?a=5120:i instanceof Uint8Array&&(a=5121),{buffer:o,type:a,bytesPerElement:i.BYTES_PER_ELEMENT,version:e.version}}(e,i)):s.version<e.version&&(function(e,r,i){const s=r.array,o=r.updateRange;t.bindBuffer(i,e),-1===o.count?t.bufferSubData(i,0,s):(n?t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s,o.offset,o.count):t.bufferSubData(i,o.offset*s.BYTES_PER_ELEMENT,s.subarray(o.offset,o.offset+o.count)),o.count=-1)}(s.buffer,e,i),s.version=e.version)}}}exports.Frustum=Es;class Rs extends ki{constructor(t=1,e=1,n=1,r=1){super(),this.type="PlaneGeometry",this.parameters={width:t,height:e,widthSegments:n,heightSegments:r};const i=t/2,s=e/2,o=Math.floor(n),a=Math.floor(r),l=o+1,c=a+1,h=t/o,u=e/a,p=[],d=[],m=[],f=[];for(let g=0;g<c;g++){const t=g*u-s;for(let e=0;e<l;e++){const n=e*h-i;d.push(n,-t,0),m.push(0,0,1),f.push(e/o),f.push(1-g/a)}}for(let g=0;g<a;g++)for(let t=0;t<o;t++){const e=t+l*g,n=t+l*(g+1),r=t+1+l*(g+1),i=t+1+l*g;p.push(e,n,i),p.push(n,r,i)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.PlaneGeometry=exports.PlaneBufferGeometry=Rs;var Cs="#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif",Ps="#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",Ds="#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif",Is="#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif",Bs="#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",Ns="vec3 transformed = vec3( position );",Fs="vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif",Os="vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif",zs="#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif",Gs="#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif",Hs="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif",Us="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif",ks="#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif",Vs="#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif",Ws="#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif",js="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif",qs="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif",Xs="#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}",Ys="#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif",Zs="vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif",Js="#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif",Qs="#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif",Ks="#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif",$s="#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif",to="gl_FragColor = linearToOutputTexel( gl_FragColor );",eo="\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}",no="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif",ro="#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif",io="#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif",so="#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif",oo="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif",ao="#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif",lo="#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif",co="#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif",ho="#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif",uo="#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}",po="#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif",mo="#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",fo="vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif",go="uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif",xo="#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif",vo="ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;",yo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)",_o="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;",bo="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)",wo="PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif",Mo="struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}",So="\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif",To="#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif",Eo="#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif",Ao="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",Lo="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif",Ro="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif",Co="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif",Po="#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif",Do="#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif",Io="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif",Bo="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif",No="float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif",Fo="#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",Oo="#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif",zo="#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif",Go="#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif",Ho="float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;",Uo="#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif",ko="#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif",Vo="#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif",Wo="#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif",jo="#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif",qo="vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}",Xo="#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif",Yo="vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;",Zo="#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif",Jo="#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif",Qo="float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif",Ko="#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",$o="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif",ta="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif",ea="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif",na="float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}",ra="#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",ia="#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif",sa="#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif",oa="#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif",aa="float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",la="#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",ca="#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif",ha="#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }",ua="#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif",pa="#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif",da="#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif",ma="#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif",fa="#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif",ga="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif",xa="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif",va="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif",ya="#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif",_a="uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",ba="varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}",wa="#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ma="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}",Sa="#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}",Ta="#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}",Ea="#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}",Aa="#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}",La="uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}",Ra="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}",Ca="uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Pa="uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}",Da="uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ia="#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}",Ba="uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Na="#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Fa="#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Oa="#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}",za="#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ga="#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ha="#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Ua="#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",ka="#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}",Va="#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Wa="#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}",ja="#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}",qa="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}",Xa="uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}",Ya="uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Za="#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}",Ja="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}",Qa="uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";const Ka={alphamap_fragment:Cs,alphamap_pars_fragment:Ps,alphatest_fragment:Ds,aomap_fragment:Is,aomap_pars_fragment:Bs,begin_vertex:Ns,beginnormal_vertex:Fs,bsdfs:Os,bumpmap_pars_fragment:zs,clipping_planes_fragment:Gs,clipping_planes_pars_fragment:Hs,clipping_planes_pars_vertex:Us,clipping_planes_vertex:ks,color_fragment:Vs,color_pars_fragment:Ws,color_pars_vertex:js,color_vertex:qs,common:Xs,cube_uv_reflection_fragment:Ys,defaultnormal_vertex:Zs,displacementmap_pars_vertex:Js,displacementmap_vertex:Qs,emissivemap_fragment:Ks,emissivemap_pars_fragment:$s,encodings_fragment:to,encodings_pars_fragment:eo,envmap_fragment:no,envmap_common_pars_fragment:ro,envmap_pars_fragment:io,envmap_pars_vertex:so,envmap_physical_pars_fragment:xo,envmap_vertex:oo,fog_vertex:ao,fog_pars_vertex:lo,fog_fragment:co,fog_pars_fragment:ho,gradientmap_pars_fragment:uo,lightmap_fragment:po,lightmap_pars_fragment:mo,lights_lambert_vertex:fo,lights_pars_begin:go,lights_toon_fragment:vo,lights_toon_pars_fragment:yo,lights_phong_fragment:_o,lights_phong_pars_fragment:bo,lights_physical_fragment:wo,lights_physical_pars_fragment:Mo,lights_fragment_begin:So,lights_fragment_maps:To,lights_fragment_end:Eo,logdepthbuf_fragment:Ao,logdepthbuf_pars_fragment:Lo,logdepthbuf_pars_vertex:Ro,logdepthbuf_vertex:Co,map_fragment:Po,map_pars_fragment:Do,map_particle_fragment:Io,map_particle_pars_fragment:Bo,metalnessmap_fragment:No,metalnessmap_pars_fragment:Fo,morphnormal_vertex:Oo,morphtarget_pars_vertex:zo,morphtarget_vertex:Go,normal_fragment_begin:Ho,normal_fragment_maps:Uo,normalmap_pars_fragment:ko,clearcoat_normal_fragment_begin:Vo,clearcoat_normal_fragment_maps:Wo,clearcoat_pars_fragment:jo,packing:qo,premultiplied_alpha_fragment:Xo,project_vertex:Yo,dithering_fragment:Zo,dithering_pars_fragment:Jo,roughnessmap_fragment:Qo,roughnessmap_pars_fragment:Ko,shadowmap_pars_fragment:$o,shadowmap_pars_vertex:ta,shadowmap_vertex:ea,shadowmask_pars_fragment:na,skinbase_vertex:ra,skinning_pars_vertex:ia,skinning_vertex:sa,skinnormal_vertex:oa,specularmap_fragment:aa,specularmap_pars_fragment:la,tonemapping_fragment:ca,tonemapping_pars_fragment:ha,transmissionmap_fragment:ua,transmissionmap_pars_fragment:pa,uv_pars_fragment:da,uv_pars_vertex:ma,uv_vertex:fa,uv2_pars_fragment:ga,uv2_pars_vertex:xa,uv2_vertex:va,worldpos_vertex:ya,background_frag:_a,background_vert:ba,cube_frag:wa,cube_vert:Ma,depth_frag:Sa,depth_vert:Ta,distanceRGBA_frag:Ea,distanceRGBA_vert:Aa,equirect_frag:La,equirect_vert:Ra,linedashed_frag:Ca,linedashed_vert:Pa,meshbasic_frag:Da,meshbasic_vert:Ia,meshlambert_frag:Ba,meshlambert_vert:Na,meshmatcap_frag:Fa,meshmatcap_vert:Oa,meshtoon_frag:za,meshtoon_vert:Ga,meshphong_frag:Ha,meshphong_vert:Ua,meshphysical_frag:ka,meshphysical_vert:Va,normal_frag:Wa,normal_vert:ja,points_frag:qa,points_vert:Xa,shadow_frag:Ya,shadow_vert:Za,sprite_frag:Ja,sprite_vert:Qa};exports.ShaderChunk=Ka;const $a={common:{diffuse:{value:new xi(15658734)},opacity:{value:1},map:{value:null},uvTransform:{value:new zn},uv2Transform:{value:new zn},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98},maxMipLevel:{value:0}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new On(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:25e-5},fogNear:{value:1},fogFar:{value:2e3},fogColor:{value:new xi(16777215)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new xi(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}},sprite:{diffuse:{value:new xi(15658734)},opacity:{value:1},center:{value:new On(.5,.5)},rotation:{value:0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new zn}}};exports.UniformsLib=$a;const tl={basic:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.fog]),vertexShader:Ka.meshbasic_vert,fragmentShader:Ka.meshbasic_frag},lambert:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshlambert_vert,fragmentShader:Ka.meshlambert_frag},phong:{uniforms:us([$a.common,$a.specularmap,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},specular:{value:new xi(1118481)},shininess:{value:30}}]),vertexShader:Ka.meshphong_vert,fragmentShader:Ka.meshphong_frag},standard:{uniforms:us([$a.common,$a.envmap,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.roughnessmap,$a.metalnessmap,$a.fog,$a.lights,{emissive:{value:new xi(0)},roughness:{value:1},metalness:{value:0},envMapIntensity:{value:1}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag},toon:{uniforms:us([$a.common,$a.aomap,$a.lightmap,$a.emissivemap,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.gradientmap,$a.fog,$a.lights,{emissive:{value:new xi(0)}}]),vertexShader:Ka.meshtoon_vert,fragmentShader:Ka.meshtoon_frag},matcap:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,$a.fog,{matcap:{value:null}}]),vertexShader:Ka.meshmatcap_vert,fragmentShader:Ka.meshmatcap_frag},points:{uniforms:us([$a.points,$a.fog]),vertexShader:Ka.points_vert,fragmentShader:Ka.points_frag},dashed:{uniforms:us([$a.common,$a.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:Ka.linedashed_vert,fragmentShader:Ka.linedashed_frag},depth:{uniforms:us([$a.common,$a.displacementmap]),vertexShader:Ka.depth_vert,fragmentShader:Ka.depth_frag},normal:{uniforms:us([$a.common,$a.bumpmap,$a.normalmap,$a.displacementmap,{opacity:{value:1}}]),vertexShader:Ka.normal_vert,fragmentShader:Ka.normal_frag},sprite:{uniforms:us([$a.sprite,$a.fog]),vertexShader:Ka.sprite_vert,fragmentShader:Ka.sprite_frag},background:{uniforms:{uvTransform:{value:new zn},t2D:{value:null}},vertexShader:Ka.background_vert,fragmentShader:Ka.background_frag},cube:{uniforms:us([$a.envmap,{opacity:{value:1}}]),vertexShader:Ka.cube_vert,fragmentShader:Ka.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:Ka.equirect_vert,fragmentShader:Ka.equirect_frag},distanceRGBA:{uniforms:us([$a.common,$a.displacementmap,{referencePosition:{value:new Yn},nearDistance:{value:1},farDistance:{value:1e3}}]),vertexShader:Ka.distanceRGBA_vert,fragmentShader:Ka.distanceRGBA_frag},shadow:{uniforms:us([$a.lights,$a.fog,{color:{value:new xi(0)},opacity:{value:1}}]),vertexShader:Ka.shadow_vert,fragmentShader:Ka.shadow_frag}};function el(t,e,n,r,i){const s=new xi(0);let o,a,l=0,c=null,h=0,d=null;function m(t,e){n.buffers.color.setClear(t.r,t.g,t.b,e,i)}return{getClearColor:function(){return s},setClearColor:function(t,e=1){s.set(t),m(s,l=e)},getClearAlpha:function(){return l},setClearAlpha:function(t){m(s,l=t)},render:function(n,i,f,g){let x=!0===i.isScene?i.background:null;x&&x.isTexture&&(x=e.get(x));const v=t.xr,y=v.getSession&&v.getSession();y&&"additive"===y.environmentBlendMode&&(x=null),null===x?m(s,l):x&&x.isColor&&(m(x,1),g=!0),(t.autoClear||g)&&t.clear(t.autoClearColor,t.autoClearDepth,t.autoClearStencil),x&&(x.isCubeTexture||x.isWebGLCubeRenderTarget||x.mapping===ot)?(void 0===a&&((a=new os(new cs(1,1,1),new fs({name:"BackgroundCubeMaterial",uniforms:hs(tl.cube.uniforms),vertexShader:tl.cube.vertexShader,fragmentShader:tl.cube.fragmentShader,side:p,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),a.geometry.deleteAttribute("uv"),a.onBeforeRender=function(t,e,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(a.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),r.update(a)),x.isWebGLCubeRenderTarget&&(x=x.texture),a.material.uniforms.envMap.value=x,a.material.uniforms.flipEnvMap.value=x.isCubeTexture&&x._needsFlipEnvMap?-1:1,c===x&&h===x.version&&d===t.toneMapping||(a.material.needsUpdate=!0,c=x,h=x.version,d=t.toneMapping),n.unshift(a,a.geometry,a.material,0,0,null)):x&&x.isTexture&&(void 0===o&&((o=new os(new Rs(2,2),new fs({name:"BackgroundMaterial",uniforms:hs(tl.background.uniforms),vertexShader:tl.background.vertexShader,fragmentShader:tl.background.fragmentShader,side:u,depthTest:!1,depthWrite:!1,fog:!1}))).geometry.deleteAttribute("normal"),Object.defineProperty(o.material,"map",{get:function(){return 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s=c.newAttributes,o=c.enabledAttributes,a=c.attributeDivisors;if(s[n]=1,0===o[n]&&(t.enableVertexAttribArray(n),o[n]=1),a[n]!==i){(r.isWebGL2?t:e.get("ANGLE_instanced_arrays"))[r.isWebGL2?"vertexAttribDivisor":"vertexAttribDivisorANGLE"](n,i),a[n]=i}}function g(){const e=c.newAttributes,n=c.enabledAttributes;for(let r=0,i=n.length;r<i;r++)n[r]!==e[r]&&(t.disableVertexAttribArray(r),n[r]=0)}function x(e,n,i,s,o,a){!0!==r.isWebGL2||5124!==i&&5125!==i?t.vertexAttribPointer(e,n,i,s,o,a):t.vertexAttribIPointer(e,n,i,o,a)}function v(){y(),c!==l&&h((c=l).object)}function y(){l.geometry=null,l.program=null,l.wireframe=!1}return{setup:function(i,l,u,v,y){let _=!1;if(o){const e=function(e,n,i){const o=!0===i.wireframe;let l=a[e.id];void 0===l&&(l={},a[e.id]=l);let c=l[n.id];void 0===c&&(c={},l[n.id]=c);let h=c[o];return void 0===h&&(h=p(r.isWebGL2?t.createVertexArray():s.createVertexArrayOES()),c[o]=h),h}(v,u,l);c!==e&&h((c=e).object),(_=function(t,e){const n=c.attributes,r=t.attributes;let i=0;for(const s in r){const t=n[s],e=r[s];if(void 0===t)return!0;if(t.attribute!==e)return!0;if(t.data!==e.data)return!0;i++}return c.attributesNum!==i||c.index!==e}(v,y))&&function(t,e){const n={},r=t.attributes;let i=0;for(const s in r){const t=r[s],e={};e.attribute=t,t.data&&(e.data=t.data),n[s]=e,i++}c.attributes=n,c.attributesNum=i,c.index=e}(v,y)}else{const t=!0===l.wireframe;c.geometry===v.id&&c.program===u.id&&c.wireframe===t||(c.geometry=v.id,c.program=u.id,c.wireframe=t,_=!0)}!0===i.isInstancedMesh&&(_=!0),null!==y&&n.update(y,34963),_&&(function(i,s,o,a){if(!1===r.isWebGL2&&(i.isInstancedMesh||a.isInstancedBufferGeometry)&&null===e.get("ANGLE_instanced_arrays"))return;d();const l=a.attributes,c=o.getAttributes(),h=s.defaultAttributeValues;for(const e in c){const r=c[e];if(r>=0){const s=l[e];if(void 0!==s){const e=s.normalized,i=s.itemSize,o=n.get(s);if(void 0===o)continue;const l=o.buffer,c=o.type,h=o.bytesPerElement;if(s.isInterleavedBufferAttribute){const 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2:t.vertexAttrib2fv(r,n);break;case 3:t.vertexAttrib3fv(r,n);break;case 4:t.vertexAttrib4fv(r,n);break;default:t.vertexAttrib1fv(r,n)}}}}g()}(i,l,u,v),null!==y&&t.bindBuffer(34963,n.get(y).buffer))},reset:v,resetDefaultState:y,dispose:function(){v();for(const t in a){const e=a[t];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete a[t]}},releaseStatesOfGeometry:function(t){if(void 0===a[t.id])return;const e=a[t.id];for(const n in e){const t=e[n];for(const e in t)u(t[e].object),delete t[e];delete e[n]}delete a[t.id]},releaseStatesOfProgram:function(t){for(const e in a){const n=a[e];if(void 0===n[t.id])continue;const r=n[t.id];for(const t in r)u(r[t].object),delete r[t];delete n[t.id]}},initAttributes:d,enableAttribute:m,disableUnusedAttributes:g}}function rl(t,e,n,r){const i=r.isWebGL2;let s;this.setMode=function(t){s=t},this.render=function(e,r){t.drawArrays(s,e,r),n.update(r,s,1)},this.renderInstances=function(r,o,a){if(0===a)return;let l,c;if(i)l=t,c="drawArraysInstanced";else if(c="drawArraysInstancedANGLE",null===(l=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");l[c](s,r,o,a),n.update(o,s,a)}}function il(t,e,n){let r;function i(e){if("highp"===e){if(t.getShaderPrecisionFormat(35633,36338).precision>0&&t.getShaderPrecisionFormat(35632,36338).precision>0)return"highp";e="mediump"}return"mediump"===e&&t.getShaderPrecisionFormat(35633,36337).precision>0&&t.getShaderPrecisionFormat(35632,36337).precision>0?"mediump":"lowp"}const s="undefined"!=typeof WebGL2RenderingContext&&t instanceof WebGL2RenderingContext||"undefined"!=typeof WebGL2ComputeRenderingContext&&t instanceof WebGL2ComputeRenderingContext;let o=void 0!==n.precision?n.precision:"highp";const a=i(o);a!==o&&(console.warn("THREE.WebGLRenderer:",o,"not supported, using",a,"instead."),o=a);const l=!0===n.logarithmicDepthBuffer,c=t.getParameter(34930),h=t.getParameter(35660),u=t.getParameter(3379),p=t.getParameter(34076),d=t.getParameter(34921),m=t.getParameter(36347),f=t.getParameter(36348),g=t.getParameter(36349),x=h>0,v=s||e.has("OES_texture_float");return{isWebGL2:s,getMaxAnisotropy:function(){if(void 0!==r)return r;if(!0===e.has("EXT_texture_filter_anisotropic")){const n=e.get("EXT_texture_filter_anisotropic");r=t.getParameter(n.MAX_TEXTURE_MAX_ANISOTROPY_EXT)}else r=0;return r},getMaxPrecision:i,precision:o,logarithmicDepthBuffer:l,maxTextures:c,maxVertexTextures:h,maxTextureSize:u,maxCubemapSize:p,maxAttributes:d,maxVertexUniforms:m,maxVaryings:f,maxFragmentUniforms:g,vertexTextures:x,floatFragmentTextures:v,floatVertexTextures:x&&v,maxSamples:s?t.getParameter(36183):0}}function sl(t){const e=this;let n=null,r=0,i=!1,s=!1;const o=new Qr,a=new zn,l={value:null,needsUpdate:!1};function c(){l.value!==n&&(l.value=n,l.needsUpdate=r>0),e.numPlanes=r,e.numIntersection=0}function h(t,n,r,i){const s=null!==t?t.length:0;let c=null;if(0!==s){if(c=l.value,!0!==i||null===c){const e=r+4*s,i=n.matrixWorldInverse;a.getNormalMatrix(i),(null===c||c.length<e)&&(c=new Float32Array(e));for(let n=0,l=r;n!==s;++n,l+=4)o.copy(t[n]).applyMatrix4(i,a),o.normal.toArray(c,l),c[l+3]=o.constant}l.value=c,l.needsUpdate=!0}return e.numPlanes=s,e.numIntersection=0,c}this.uniform=l,this.numPlanes=0,this.numIntersection=0,this.init=function(t,e,s){const o=0!==t.length||e||0!==r||i;return i=e,n=h(t,s,0),r=t.length,o},this.beginShadows=function(){s=!0,h(null)},this.endShadows=function(){s=!1,c()},this.setState=function(e,o,a){const u=e.clippingPlanes,p=e.clipIntersection,d=e.clipShadows,m=t.get(e);if(!i||null===u||0===u.length||s&&!d)s?h(null):c();else{const t=s?0:r,e=4*t;let i=m.clippingState||null;l.value=i,i=h(u,o,e,a);for(let r=0;r!==e;++r)i[r]=n[r];m.clippingState=i,this.numIntersection=p?this.numPlanes:0,this.numPlanes+=t}}}function ol(t){let e=new WeakMap;function n(t,e){return e===it?t.mapping=nt:e===st&&(t.mapping=rt),t}function r(t){const n=t.target;n.removeEventListener("dispose",r);const i=e.get(n);void 0!==i&&(e.delete(n),i.dispose())}return{get:function(i){if(i&&i.isTexture){const s=i.mapping;if(s===it||s===st){if(e.has(i))return n(e.get(i).texture,i.mapping);{const s=i.image;if(s&&s.height>0){const o=t.getRenderTarget(),a=new ws(s.height/2);return a.fromEquirectangularTexture(t,i),e.set(i,a),t.setRenderTarget(o),i.addEventListener("dispose",r),n(a.texture,i.mapping)}return null}}}return i},dispose:function(){e=new WeakMap}}}function al(t){const e={};function n(n){if(void 0!==e[n])return e[n];let r;switch(n){case"WEBGL_depth_texture":r=t.getExtension("WEBGL_depth_texture")||t.getExtension("MOZ_WEBGL_depth_texture")||t.getExtension("WEBKIT_WEBGL_depth_texture");break;case"EXT_texture_filter_anisotropic":r=t.getExtension("EXT_texture_filter_anisotropic")||t.getExtension("MOZ_EXT_texture_filter_anisotropic")||t.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case"WEBGL_compressed_texture_s3tc":r=t.getExtension("WEBGL_compressed_texture_s3tc")||t.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case"WEBGL_compressed_texture_pvrtc":r=t.getExtension("WEBGL_compressed_texture_pvrtc")||t.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:r=t.getExtension(n)}return e[n]=r,r}return{has:function(t){return null!==n(t)},init:function(t){t.isWebGL2?n("EXT_color_buffer_float"):(n("WEBGL_depth_texture"),n("OES_texture_float"),n("OES_texture_half_float"),n("OES_texture_half_float_linear"),n("OES_standard_derivatives"),n("OES_element_index_uint"),n("OES_vertex_array_object"),n("ANGLE_instanced_arrays")),n("OES_texture_float_linear"),n("EXT_color_buffer_half_float")},get:function(t){const e=n(t);return null===e&&console.warn("THREE.WebGLRenderer: "+t+" extension not supported."),e}}}function ll(t,e,n,r){const i={},s=new WeakMap;function o(t){const a=t.target;null!==a.index&&e.remove(a.index);for(const n in a.attributes)e.remove(a.attributes[n]);a.removeEventListener("dispose",o),delete i[a.id];const l=s.get(a);l&&(e.remove(l),s.delete(a)),r.releaseStatesOfGeometry(a),!0===a.isInstancedBufferGeometry&&delete a._maxInstanceCount,n.memory.geometries--}function a(t){const n=[],r=t.index,i=t.attributes.position;let o=0;if(null!==r){const t=r.array;o=r.version;for(let e=0,r=t.length;e<r;e+=3){const r=t[e+0],i=t[e+1],s=t[e+2];n.push(r,i,i,s,s,r)}}else{const t=i.array;o=i.version;for(let e=0,r=t.length/3-1;e<r;e+=3){const t=e+0,r=e+1,i=e+2;n.push(t,r,r,i,i,t)}}const a=new(Di(n)>65535?Li:Ei)(n,1);a.version=o;const l=s.get(t);l&&e.remove(l),s.set(t,a)}return{get:function(t,e){return!0===i[e.id]?e:(e.addEventListener("dispose",o),i[e.id]=!0,n.memory.geometries++,e)},update:function(t){const n=t.attributes;for(const i in n)e.update(n[i],34962);const r=t.morphAttributes;for(const i in r){const t=r[i];for(let n=0,r=t.length;n<r;n++)e.update(t[n],34962)}},getWireframeAttribute:function(t){const e=s.get(t);if(e){const n=t.index;null!==n&&e.version<n.version&&a(t)}else a(t);return s.get(t)}}}function cl(t,e,n,r){const i=r.isWebGL2;let s,o,a;this.setMode=function(t){s=t},this.setIndex=function(t){o=t.type,a=t.bytesPerElement},this.render=function(e,r){t.drawElements(s,r,o,e*a),n.update(r,s,1)},this.renderInstances=function(r,l,c){if(0===c)return;let h,u;if(i)h=t,u="drawElementsInstanced";else if(u="drawElementsInstancedANGLE",null===(h=e.get("ANGLE_instanced_arrays")))return void console.error("THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");h[u](s,l,o,r*a,c),n.update(l,s,c)}}function hl(t){const e={frame:0,calls:0,triangles:0,points:0,lines:0};return{memory:{geometries:0,textures:0},render:e,programs:null,autoReset:!0,reset:function(){e.frame++,e.calls=0,e.triangles=0,e.points=0,e.lines=0},update:function(t,n,r){switch(e.calls++,n){case 4:e.triangles+=r*(t/3);break;case 1:e.lines+=r*(t/2);break;case 3:e.lines+=r*(t-1);break;case 2:e.lines+=r*t;break;case 0:e.points+=r*t;break;default:console.error("THREE.WebGLInfo: Unknown draw mode:",n)}}}}function ul(t,e){return t[0]-e[0]}function pl(t,e){return Math.abs(e[1])-Math.abs(t[1])}function dl(t){const e={},n=new Float32Array(8),r=[];for(let i=0;i<8;i++)r[i]=[i,0];return{update:function(i,s,o,a){const l=i.morphTargetInfluences,c=void 0===l?0:l.length;let h=e[s.id];if(void 0===h){h=[];for(let t=0;t<c;t++)h[t]=[t,0];e[s.id]=h}for(let t=0;t<c;t++){const e=h[t];e[0]=t,e[1]=l[t]}h.sort(pl);for(let t=0;t<8;t++)t<c&&h[t][1]?(r[t][0]=h[t][0],r[t][1]=h[t][1]):(r[t][0]=Number.MAX_SAFE_INTEGER,r[t][1]=0);r.sort(ul);const u=o.morphTargets&&s.morphAttributes.position,p=o.morphNormals&&s.morphAttributes.normal;let d=0;for(let t=0;t<8;t++){const e=r[t],i=e[0],o=e[1];i!==Number.MAX_SAFE_INTEGER&&o?(u&&s.getAttribute("morphTarget"+t)!==u[i]&&s.setAttribute("morphTarget"+t,u[i]),p&&s.getAttribute("morphNormal"+t)!==p[i]&&s.setAttribute("morphNormal"+t,p[i]),n[t]=o,d+=o):(u&&!0===s.hasAttribute("morphTarget"+t)&&s.deleteAttribute("morphTarget"+t),p&&!0===s.hasAttribute("morphNormal"+t)&&s.deleteAttribute("morphNormal"+t),n[t]=0)}const m=s.morphTargetsRelative?1:1-d;a.getUniforms().setValue(t,"morphTargetBaseInfluence",m),a.getUniforms().setValue(t,"morphTargetInfluences",n)}}}function ml(t,e,n,r){let i=new WeakMap;function s(t){const e=t.target;e.removeEventListener("dispose",s),n.remove(e.instanceMatrix),null!==e.instanceColor&&n.remove(e.instanceColor)}return{update:function(t){const o=r.render.frame,a=t.geometry,l=e.get(t,a);return i.get(l)!==o&&(e.update(l),i.set(l,o)),t.isInstancedMesh&&(!1===t.hasEventListener("dispose",s)&&t.addEventListener("dispose",s),n.update(t.instanceMatrix,34962),null!==t.instanceColor&&n.update(t.instanceColor,34962)),l},dispose:function(){i=new WeakMap}}}exports.ShaderLib=tl,tl.physical={uniforms:us([tl.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatNormalScale:{value:new On(1,1)},clearcoatNormalMap:{value:null},sheen:{value:new xi(0)},transmission:{value:0},transmissionMap:{value:null}}]),vertexShader:Ka.meshphysical_vert,fragmentShader:Ka.meshphysical_frag};class fl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture2DArray=fl,fl.prototype.isDataTexture2DArray=!0;class gl extends kn{constructor(t=null,e=1,n=1,r=1){super(null),this.image={data:t,width:e,height:n,depth:r},this.magFilter=ut,this.minFilter=ut,this.wrapR=ct,this.generateMipmaps=!1,this.flipY=!1,this.needsUpdate=!0}}exports.DataTexture3D=gl,gl.prototype.isDataTexture3D=!0;const xl=new kn,vl=new fl,yl=new gl,_l=new bs,bl=[],wl=[],Ml=new Float32Array(16),Sl=new Float32Array(9),Tl=new Float32Array(4);function El(t,e,n){const r=t[0];if(r<=0||r>0)return t;const i=e*n;let s=bl[i];if(void 0===s&&(s=new Float32Array(i),bl[i]=s),0!==e){r.toArray(s,0);for(let r=1,i=0;r!==e;++r)i+=n,t[r].toArray(s,i)}return s}function Al(t,e){if(t.length!==e.length)return!1;for(let n=0,r=t.length;n<r;n++)if(t[n]!==e[n])return!1;return!0}function Ll(t,e){for(let n=0,r=e.length;n<r;n++)t[n]=e[n]}function Rl(t,e){let n=wl[e];void 0===n&&(n=new Int32Array(e),wl[e]=n);for(let r=0;r!==e;++r)n[r]=t.allocateTextureUnit();return n}function Cl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1f(this.addr,e),n[0]=e)}function Pl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y||(t.uniform2f(this.addr,e.x,e.y),n[0]=e.x,n[1]=e.y);else{if(Al(n,e))return;t.uniform2fv(this.addr,e),Ll(n,e)}}function Dl(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z||(t.uniform3f(this.addr,e.x,e.y,e.z),n[0]=e.x,n[1]=e.y,n[2]=e.z);else if(void 0!==e.r)n[0]===e.r&&n[1]===e.g&&n[2]===e.b||(t.uniform3f(this.addr,e.r,e.g,e.b),n[0]=e.r,n[1]=e.g,n[2]=e.b);else{if(Al(n,e))return;t.uniform3fv(this.addr,e),Ll(n,e)}}function Il(t,e){const n=this.cache;if(void 0!==e.x)n[0]===e.x&&n[1]===e.y&&n[2]===e.z&&n[3]===e.w||(t.uniform4f(this.addr,e.x,e.y,e.z,e.w),n[0]=e.x,n[1]=e.y,n[2]=e.z,n[3]=e.w);else{if(Al(n,e))return;t.uniform4fv(this.addr,e),Ll(n,e)}}function Bl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix2fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Tl.set(r),t.uniformMatrix2fv(this.addr,!1,Tl),Ll(n,r)}}function Nl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix3fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Sl.set(r),t.uniformMatrix3fv(this.addr,!1,Sl),Ll(n,r)}}function Fl(t,e){const n=this.cache,r=e.elements;if(void 0===r){if(Al(n,e))return;t.uniformMatrix4fv(this.addr,!1,e),Ll(n,e)}else{if(Al(n,r))return;Ml.set(r),t.uniformMatrix4fv(this.addr,!1,Ml),Ll(n,r)}}function Ol(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTexture2D(e||xl,i)}function zl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture2DArray(e||vl,i)}function Gl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.setTexture3D(e||yl,i)}function Hl(t,e,n){const r=this.cache,i=n.allocateTextureUnit();r[0]!==i&&(t.uniform1i(this.addr,i),r[0]=i),n.safeSetTextureCube(e||_l,i)}function Ul(t,e){const n=this.cache;n[0]!==e&&(t.uniform1i(this.addr,e),n[0]=e)}function kl(t,e){const n=this.cache;Al(n,e)||(t.uniform2iv(this.addr,e),Ll(n,e))}function Vl(t,e){const n=this.cache;Al(n,e)||(t.uniform3iv(this.addr,e),Ll(n,e))}function Wl(t,e){const n=this.cache;Al(n,e)||(t.uniform4iv(this.addr,e),Ll(n,e))}function jl(t,e){const n=this.cache;n[0]!==e&&(t.uniform1ui(this.addr,e),n[0]=e)}function ql(t){switch(t){case 5126:return Cl;case 35664:return Pl;case 35665:return Dl;case 35666:return Il;case 35674:return Bl;case 35675:return Nl;case 35676:return Fl;case 5124:case 35670:return Ul;case 35667:case 35671:return kl;case 35668:case 35672:return Vl;case 35669:case 35673:return Wl;case 5125:return jl;case 35678:case 36198:case 36298:case 36306:case 35682:return Ol;case 35679:case 36299:case 36307:return Gl;case 35680:case 36300:case 36308:case 36293:return Hl;case 36289:case 36303:case 36311:case 36292:return zl}}function Xl(t,e){t.uniform1fv(this.addr,e)}function Yl(t,e){t.uniform1iv(this.addr,e)}function Zl(t,e){t.uniform2iv(this.addr,e)}function Jl(t,e){t.uniform3iv(this.addr,e)}function Ql(t,e){t.uniform4iv(this.addr,e)}function Kl(t,e){const n=El(e,this.size,2);t.uniform2fv(this.addr,n)}function $l(t,e){const n=El(e,this.size,3);t.uniform3fv(this.addr,n)}function tc(t,e){const n=El(e,this.size,4);t.uniform4fv(this.addr,n)}function ec(t,e){const n=El(e,this.size,4);t.uniformMatrix2fv(this.addr,!1,n)}function nc(t,e){const n=El(e,this.size,9);t.uniformMatrix3fv(this.addr,!1,n)}function rc(t,e){const n=El(e,this.size,16);t.uniformMatrix4fv(this.addr,!1,n)}function ic(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTexture2D(e[s]||xl,i[s])}function sc(t,e,n){const r=e.length,i=Rl(n,r);t.uniform1iv(this.addr,i);for(let s=0;s!==r;++s)n.safeSetTextureCube(e[s]||_l,i[s])}function oc(t){switch(t){case 5126:return Xl;case 35664:return Kl;case 35665:return $l;case 35666:return tc;case 35674:return ec;case 35675:return nc;case 35676:return rc;case 5124:case 35670:return Yl;case 35667:case 35671:return Zl;case 35668:case 35672:return Jl;case 35669:case 35673:return Ql;case 35678:case 36198:case 36298:case 36306:case 35682:return ic;case 35680:case 36300:case 36308:case 36293:return sc}}function ac(t,e,n){this.id=t,this.addr=n,this.cache=[],this.setValue=ql(e.type)}function lc(t,e,n){this.id=t,this.addr=n,this.cache=[],this.size=e.size,this.setValue=oc(e.type)}function cc(t){this.id=t,this.seq=[],this.map={}}lc.prototype.updateCache=function(t){const e=this.cache;t instanceof 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texture2DProjLodEXT textureProjLod","#define textureCubeLodEXT textureLod","#define texture2DGradEXT textureGrad","#define texture2DProjGradEXT textureProjGrad","#define textureCubeGradEXT textureGrad"].join("\n")+"\n"+x);const y=v+x+a,_=mc(i,35633,v+g+o),b=mc(i,35632,y);if(i.attachShader(f,_),i.attachShader(f,b),void 0!==n.index0AttributeName?i.bindAttribLocation(f,0,n.index0AttributeName):!0===n.morphTargets&&i.bindAttribLocation(f,0,"position"),i.linkProgram(f),t.debug.checkShaderErrors){const t=i.getProgramInfoLog(f).trim(),e=i.getShaderInfoLog(_).trim(),n=i.getShaderInfoLog(b).trim();let r=!0,s=!0;if(!1===i.getProgramParameter(f,35714)){r=!1;const e=vc(i,_,"vertex"),n=vc(i,b,"fragment");console.error("THREE.WebGLProgram: shader error: ",i.getError(),"35715",i.getProgramParameter(f,35715),"gl.getProgramInfoLog",t,e,n)}else""!==t?console.warn("THREE.WebGLProgram: gl.getProgramInfoLog()",t):""!==e&&""!==n||(s=!1);s&&(this.diagnostics={runnable:r,programLog:t,vertexShader:{log:e,prefix:g},fragmentShader:{log:n,prefix:x}})}let w,M;return i.deleteShader(_),i.deleteShader(b),this.getUniforms=function(){return void 0===w&&(w=new dc(i,f)),w},this.getAttributes=function(){return void 0===M&&(M=Sc(i,f)),M},this.destroy=function(){r.releaseStatesOfProgram(this),i.deleteProgram(f),this.program=void 0},this.name=n.shaderName,this.id=fc++,this.cacheKey=e,this.usedTimes=1,this.program=f,this.vertexShader=_,this.fragmentShader=b,this}function kc(t,e,n,r,i,s){const o=[],a=r.isWebGL2,l=r.logarithmicDepthBuffer,c=r.floatVertexTextures,h=r.maxVertexUniforms,u=r.vertexTextures;let m=r.precision;const f={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",MeshPhongMaterial:"phong",MeshToonMaterial:"toon",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",MeshMatcapMaterial:"matcap",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow",SpriteMaterial:"sprite"},g=["precision","isWebGL2","supportsVertexTextures","outputEncoding","instancing","instancingColor","map","mapEncoding","matcap","matcapEncoding","envMap","envMapMode","envMapEncoding","envMapCubeUV","lightMap","lightMapEncoding","aoMap","emissiveMap","emissiveMapEncoding","bumpMap","normalMap","objectSpaceNormalMap","tangentSpaceNormalMap","clearcoatMap","clearcoatRoughnessMap","clearcoatNormalMap","displacementMap","specularMap","roughnessMap","metalnessMap","gradientMap","alphaMap","combine","vertexColors","vertexTangents","vertexUvs","uvsVertexOnly","fog","useFog","fogExp2","flatShading","sizeAttenuation","logarithmicDepthBuffer","skinning","maxBones","useVertexTexture","morphTargets","morphNormals","maxMorphTargets","maxMorphNormals","premultipliedAlpha","numDirLights","numPointLights","numSpotLights","numHemiLights","numRectAreaLights","numDirLightShadows","numPointLightShadows","numSpotLightShadows","shadowMapEnabled","shadowMapType","toneMapping","physicallyCorrectLights","alphaTest","doubleSided","flipSided","numClippingPlanes","numClipIntersection","depthPacking","dithering","sheen","transmissionMap"];function x(t){let e;return t&&t.isTexture?e=t.encoding:t&&t.isWebGLRenderTarget?(console.warn("THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead."),e=t.texture.encoding):e=Xe,e}return{getParameters:function(i,o,g,v,y){const _=v.fog,b=i.isMeshStandardMaterial?v.environment:null,w=e.get(i.envMap||b),M=f[i.type],S=y.isSkinnedMesh?function(t){const e=t.skeleton.bones;if(c)return 1024;{const t=h,n=Math.floor((t-20)/4),r=Math.min(n,e.length);return r<e.length?(console.warn("THREE.WebGLRenderer: Skeleton has "+e.length+" bones. This GPU supports "+r+"."),0):r}}(y):0;let T,E;if(null!==i.precision&&(m=r.getMaxPrecision(i.precision))!==i.precision&&console.warn("THREE.WebGLProgram.getParameters:",i.precision,"not supported, using",m,"instead."),M){const t=tl[M];T=t.vertexShader,E=t.fragmentShader}else T=i.vertexShader,E=i.fragmentShader;const A=t.getRenderTarget();return{isWebGL2:a,shaderID:M,shaderName:i.type,vertexShader:T,fragmentShader:E,defines:i.defines,isRawShaderMaterial:!0===i.isRawShaderMaterial,glslVersion:i.glslVersion,precision:m,instancing:!0===y.isInstancedMesh,instancingColor:!0===y.isInstancedMesh&&null!==y.instanceColor,supportsVertexTextures:u,outputEncoding:null!==A?x(A.texture):t.outputEncoding,map:!!i.map,mapEncoding:x(i.map),matcap:!!i.matcap,matcapEncoding:x(i.matcap),envMap:!!w,envMapMode:w&&w.mapping,envMapEncoding:x(w),envMapCubeUV:!!w&&(w.mapping===ot||w.mapping===at),lightMap:!!i.lightMap,lightMapEncoding:x(i.lightMap),aoMap:!!i.aoMap,emissiveMap:!!i.emissiveMap,emissiveMapEncoding:x(i.emissiveMap),bumpMap:!!i.bumpMap,normalMap:!!i.normalMap,objectSpaceNormalMap:i.normalMapType===sn,tangentSpaceNormalMap:i.normalMapType===rn,clearcoatMap:!!i.clearcoatMap,clearcoatRoughnessMap:!!i.clearcoatRoughnessMap,clearcoatNormalMap:!!i.clearcoatNormalMap,displacementMap:!!i.displacementMap,roughnessMap:!!i.roughnessMap,metalnessMap:!!i.metalnessMap,specularMap:!!i.specularMap,alphaMap:!!i.alphaMap,gradientMap:!!i.gradientMap,sheen:!!i.sheen,transmissionMap:!!i.transmissionMap,combine:i.combine,vertexTangents:i.normalMap&&i.vertexTangents,vertexColors:i.vertexColors,vertexUvs:!!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatMap||i.clearcoatRoughnessMap||i.clearcoatNormalMap||i.displacementMap||i.transmissionMap),uvsVertexOnly:!(i.map||i.bumpMap||i.normalMap||i.specularMap||i.alphaMap||i.emissiveMap||i.roughnessMap||i.metalnessMap||i.clearcoatNormalMap||i.transmissionMap||!i.displacementMap),fog:!!_,useFog:i.fog,fogExp2:_&&_.isFogExp2,flatShading:!!i.flatShading,sizeAttenuation:i.sizeAttenuation,logarithmicDepthBuffer:l,skinning:i.skinning&&S>0,maxBones:S,useVertexTexture:c,morphTargets:i.morphTargets,morphNormals:i.morphNormals,maxMorphTargets:t.maxMorphTargets,maxMorphNormals:t.maxMorphNormals,numDirLights:o.directional.length,numPointLights:o.point.length,numSpotLights:o.spot.length,numRectAreaLights:o.rectArea.length,numHemiLights:o.hemi.length,numDirLightShadows:o.directionalShadowMap.length,numPointLightShadows:o.pointShadowMap.length,numSpotLightShadows:o.spotShadowMap.length,numClippingPlanes:s.numPlanes,numClipIntersection:s.numIntersection,dithering:i.dithering,shadowMapEnabled:t.shadowMap.enabled&&g.length>0,shadowMapType:t.shadowMap.type,toneMapping:i.toneMapped?t.toneMapping:Z,physicallyCorrectLights:t.physicallyCorrectLights,premultipliedAlpha:i.premultipliedAlpha,alphaTest:i.alphaTest,doubleSided:i.side===d,flipSided:i.side===p,depthPacking:void 0!==i.depthPacking&&i.depthPacking,index0AttributeName:i.index0AttributeName,extensionDerivatives:i.extensions&&i.extensions.derivatives,extensionFragDepth:i.extensions&&i.extensions.fragDepth,extensionDrawBuffers:i.extensions&&i.extensions.drawBuffers,extensionShaderTextureLOD:i.extensions&&i.extensions.shaderTextureLOD,rendererExtensionFragDepth:a||n.has("EXT_frag_depth"),rendererExtensionDrawBuffers:a||n.has("WEBGL_draw_buffers"),rendererExtensionShaderTextureLod:a||n.has("EXT_shader_texture_lod"),customProgramCacheKey:i.customProgramCacheKey()}},getProgramCacheKey:function(e){const n=[];if(e.shaderID?n.push(e.shaderID):(n.push(e.fragmentShader),n.push(e.vertexShader)),void 0!==e.defines)for(const t in e.defines)n.push(t),n.push(e.defines[t]);if(!1===e.isRawShaderMaterial){for(let t=0;t<g.length;t++)n.push(e[g[t]]);n.push(t.outputEncoding),n.push(t.gammaFactor)}return n.push(e.customProgramCacheKey),n.join()},getUniforms:function(t){const e=f[t.type];let n;if(e){const t=tl[e];n=ps.clone(t.uniforms)}else n=t.uniforms;return n},acquireProgram:function(e,n){let r;for(let t=0,i=o.length;t<i;t++){const e=o[t];if(e.cacheKey===n){++(r=e).usedTimes;break}}return void 0===r&&(r=new Uc(t,n,e,i),o.push(r)),r},releaseProgram:function(t){if(0==--t.usedTimes){const e=o.indexOf(t);o[e]=o[o.length-1],o.pop(),t.destroy()}},programs:o}}function Vc(){let t=new WeakMap;return{get:function(e){let n=t.get(e);return void 0===n&&(n={},t.set(e,n)),n},remove:function(e){t.delete(e)},update:function(e,n,r){t.get(e)[n]=r},dispose:function(){t=new WeakMap}}}function Wc(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.program!==e.program?t.program.id-e.program.id:t.material.id!==e.material.id?t.material.id-e.material.id:t.z!==e.z?t.z-e.z:t.id-e.id}function jc(t,e){return t.groupOrder!==e.groupOrder?t.groupOrder-e.groupOrder:t.renderOrder!==e.renderOrder?t.renderOrder-e.renderOrder:t.z!==e.z?e.z-t.z:t.id-e.id}function qc(t){const e=[];let n=0;const r=[],i=[],s={id:-1};function o(r,i,o,a,l,c){let h=e[n];const u=t.get(o);return void 0===h?(h={id:r.id,object:r,geometry:i,material:o,program:u.program||s,groupOrder:a,renderOrder:r.renderOrder,z:l,group:c},e[n]=h):(h.id=r.id,h.object=r,h.geometry=i,h.material=o,h.program=u.program||s,h.groupOrder=a,h.renderOrder=r.renderOrder,h.z=l,h.group=c),n++,h}return{opaque:r,transparent:i,init:function(){n=0,r.length=0,i.length=0},push:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).push(c)},unshift:function(t,e,n,s,a,l){const c=o(t,e,n,s,a,l);(!0===n.transparent?i:r).unshift(c)},finish:function(){for(let t=n,r=e.length;t<r;t++){const n=e[t];if(null===n.id)break;n.id=null,n.object=null,n.geometry=null,n.material=null,n.program=null,n.group=null}},sort:function(t,e){r.length>1&&r.sort(t||Wc),i.length>1&&i.sort(e||jc)}}}function Xc(t){let e=new WeakMap;return{get:function(n,r){let i;return!1===e.has(n)?(i=new qc(t),e.set(n,[i])):r>=e.get(n).length?(i=new qc(t),e.get(n).push(i)):i=e.get(n)[r],i},dispose:function(){e=new WeakMap}}}function Yc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":n={direction:new Yn,color:new xi};break;case"SpotLight":n={position:new Yn,direction:new Yn,color:new xi,distance:0,coneCos:0,penumbraCos:0,decay:0};break;case"PointLight":n={position:new Yn,color:new xi,distance:0,decay:0};break;case"HemisphereLight":n={direction:new Yn,skyColor:new xi,groundColor:new xi};break;case"RectAreaLight":n={color:new xi,position:new Yn,halfWidth:new Yn,halfHeight:new Yn}}return t[e.id]=n,n}}}function Zc(){const t={};return{get:function(e){if(void 0!==t[e.id])return t[e.id];let n;switch(e.type){case"DirectionalLight":case"SpotLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On};break;case"PointLight":n={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new On,shadowCameraNear:1,shadowCameraFar:1e3}}return t[e.id]=n,n}}}let Jc=0;function Qc(t,e){return(e.castShadow?1:0)-(t.castShadow?1:0)}function Kc(t,e){const n=new Yc,r=Zc(),i={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadow:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]};for(let l=0;l<9;l++)i.probe.push(new Yn);const s=new Yn,o=new wr,a=new wr;return{setup:function(s){let o=0,a=0,l=0;for(let t=0;t<9;t++)i.probe[t].set(0,0,0);let c=0,h=0,u=0,p=0,d=0,m=0,f=0,g=0;s.sort(Qc);for(let t=0,e=s.length;t<e;t++){const e=s[t],x=e.color,v=e.intensity,y=e.distance,_=e.shadow&&e.shadow.map?e.shadow.map.texture:null;if(e.isAmbientLight)o+=x.r*v,a+=x.g*v,l+=x.b*v;else if(e.isLightProbe)for(let t=0;t<9;t++)i.probe[t].addScaledVector(e.sh.coefficients[t],v);else if(e.isDirectionalLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.directionalShadow[c]=n,i.directionalShadowMap[c]=_,i.directionalShadowMatrix[c]=e.shadow.matrix,m++}i.directional[c]=t,c++}else if(e.isSpotLight){const t=n.get(e);if(t.position.setFromMatrixPosition(e.matrixWorld),t.color.copy(x).multiplyScalar(v),t.distance=y,t.coneCos=Math.cos(e.angle),t.penumbraCos=Math.cos(e.angle*(1-e.penumbra)),t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,i.spotShadow[u]=n,i.spotShadowMap[u]=_,i.spotShadowMatrix[u]=e.shadow.matrix,g++}i.spot[u]=t,u++}else if(e.isRectAreaLight){const t=n.get(e);t.color.copy(x).multiplyScalar(v),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),i.rectArea[p]=t,p++}else if(e.isPointLight){const t=n.get(e);if(t.color.copy(e.color).multiplyScalar(e.intensity),t.distance=e.distance,t.decay=e.decay,e.castShadow){const t=e.shadow,n=r.get(e);n.shadowBias=t.bias,n.shadowNormalBias=t.normalBias,n.shadowRadius=t.radius,n.shadowMapSize=t.mapSize,n.shadowCameraNear=t.camera.near,n.shadowCameraFar=t.camera.far,i.pointShadow[h]=n,i.pointShadowMap[h]=_,i.pointShadowMatrix[h]=e.shadow.matrix,f++}i.point[h]=t,h++}else if(e.isHemisphereLight){const t=n.get(e);t.skyColor.copy(e.color).multiplyScalar(v),t.groundColor.copy(e.groundColor).multiplyScalar(v),i.hemi[d]=t,d++}}p>0&&(e.isWebGL2?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_float_linear")?(i.rectAreaLTC1=$a.LTC_FLOAT_1,i.rectAreaLTC2=$a.LTC_FLOAT_2):!0===t.has("OES_texture_half_float_linear")?(i.rectAreaLTC1=$a.LTC_HALF_1,i.rectAreaLTC2=$a.LTC_HALF_2):console.error("THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.")),i.ambient[0]=o,i.ambient[1]=a,i.ambient[2]=l;const x=i.hash;x.directionalLength===c&&x.pointLength===h&&x.spotLength===u&&x.rectAreaLength===p&&x.hemiLength===d&&x.numDirectionalShadows===m&&x.numPointShadows===f&&x.numSpotShadows===g||(i.directional.length=c,i.spot.length=u,i.rectArea.length=p,i.point.length=h,i.hemi.length=d,i.directionalShadow.length=m,i.directionalShadowMap.length=m,i.pointShadow.length=f,i.pointShadowMap.length=f,i.spotShadow.length=g,i.spotShadowMap.length=g,i.directionalShadowMatrix.length=m,i.pointShadowMatrix.length=f,i.spotShadowMatrix.length=g,x.directionalLength=c,x.pointLength=h,x.spotLength=u,x.rectAreaLength=p,x.hemiLength=d,x.numDirectionalShadows=m,x.numPointShadows=f,x.numSpotShadows=g,i.version=Jc++)},setupView:function(t,e){let n=0,r=0,l=0,c=0,h=0;const u=e.matrixWorldInverse;for(let p=0,d=t.length;p<d;p++){const e=t[p];if(e.isDirectionalLight){const t=i.directional[n];t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),n++}else if(e.isSpotLight){const t=i.spot[l];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),t.direction.setFromMatrixPosition(e.matrixWorld),s.setFromMatrixPosition(e.target.matrixWorld),t.direction.sub(s),t.direction.transformDirection(u),l++}else if(e.isRectAreaLight){const t=i.rectArea[c];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),a.identity(),o.copy(e.matrixWorld),o.premultiply(u),a.extractRotation(o),t.halfWidth.set(.5*e.width,0,0),t.halfHeight.set(0,.5*e.height,0),t.halfWidth.applyMatrix4(a),t.halfHeight.applyMatrix4(a),c++}else if(e.isPointLight){const t=i.point[r];t.position.setFromMatrixPosition(e.matrixWorld),t.position.applyMatrix4(u),r++}else if(e.isHemisphereLight){const t=i.hemi[h];t.direction.setFromMatrixPosition(e.matrixWorld),t.direction.transformDirection(u),t.direction.normalize(),h++}}},state:i}}function $c(t,e){const n=new Kc(t,e),r=[],i=[];return{init:function(){r.length=0,i.length=0},state:{lightsArray:r,shadowsArray:i,lights:n},setupLights:function(){n.setup(r)},setupLightsView:function(t){n.setupView(r,t)},pushLight:function(t){r.push(t)},pushShadow:function(t){i.push(t)}}}function th(t,e){let n=new WeakMap;return{get:function(r,i=0){let s;return!1===n.has(r)?(s=new $c(t,e),n.set(r,[s])):i>=n.get(r).length?(s=new $c(t,e),n.get(r).push(s)):s=n.get(r)[i],s},dispose:function(){n=new WeakMap}}}class eh extends hi{constructor(t){super(),this.type="MeshDepthMaterial",this.depthPacking=en,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.depthPacking=t.depthPacking,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this}}exports.MeshDepthMaterial=eh,eh.prototype.isMeshDepthMaterial=!0;class nh extends hi{constructor(t){super(),this.type="MeshDistanceMaterial",this.referencePosition=new Yn,this.nearDistance=1,this.farDistance=1e3,this.skinning=!1,this.morphTargets=!1,this.map=null,this.alphaMap=null,this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.fog=!1,this.setValues(t)}copy(t){return super.copy(t),this.referencePosition.copy(t.referencePosition),this.nearDistance=t.nearDistance,this.farDistance=t.farDistance,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.map=t.map,this.alphaMap=t.alphaMap,this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this}}exports.MeshDistanceMaterial=nh,nh.prototype.isMeshDistanceMaterial=!0;var rh="uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}",ih="void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";function sh(t,e,n){let r=new Es;const i=new On,s=new On,o=new Wn,a=[],c=[],m={},f={0:p,1:u,2:d},x=new fs({defines:{SAMPLE_RATE:.25,HALF_SAMPLE_RATE:1/8},uniforms:{shadow_pass:{value:null},resolution:{value:new On},radius:{value:4}},vertexShader:ih,fragmentShader:rh}),v=x.clone();v.defines.HORIZONTAL_PASS=1;const y=new ki;y.setAttribute("position",new bi(new Float32Array([-1,-1,.5,3,-1,.5,-1,3,.5]),3));const _=new os(y,x),b=this;function w(n,r){const i=e.update(_);x.uniforms.shadow_pass.value=n.map.texture,x.uniforms.resolution.value=n.mapSize,x.uniforms.radius.value=n.radius,t.setRenderTarget(n.mapPass),t.clear(),t.renderBufferDirect(r,null,i,x,_,null),v.uniforms.shadow_pass.value=n.mapPass.texture,v.uniforms.resolution.value=n.mapSize,v.uniforms.radius.value=n.radius,t.setRenderTarget(n.map),t.clear(),t.renderBufferDirect(r,null,i,v,_,null)}function M(t,e,n){const r=t<<0|e<<1|n<<2;let i=a[r];return void 0===i&&(i=new eh({depthPacking:nn,morphTargets:t,skinning:e}),a[r]=i),i}function S(t,e,n){const r=t<<0|e<<1|n<<2;let i=c[r];return void 0===i&&(i=new nh({morphTargets:t,skinning:e}),c[r]=i),i}function T(e,n,r,i,s,o,a){let l=null,c=M,u=e.customDepthMaterial;if(!0===i.isPointLight&&(c=S,u=e.customDistanceMaterial),void 0===u){let t=!1;!0===r.morphTargets&&(t=n.morphAttributes&&n.morphAttributes.position&&n.morphAttributes.position.length>0);let i=!1;!0===e.isSkinnedMesh&&(!0===r.skinning?i=!0:console.warn("THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:",e)),l=c(t,i,!0===e.isInstancedMesh)}else l=u;if(t.localClippingEnabled&&!0===r.clipShadows&&0!==r.clippingPlanes.length){const t=l.uuid,e=r.uuid;let n=m[t];void 0===n&&(n={},m[t]=n);let i=n[e];void 0===i&&(i=l.clone(),n[e]=i),l=i}return l.visible=r.visible,l.wireframe=r.wireframe,l.side=a===h?null!==r.shadowSide?r.shadowSide:r.side:null!==r.shadowSide?r.shadowSide:f[r.side],l.clipShadows=r.clipShadows,l.clippingPlanes=r.clippingPlanes,l.clipIntersection=r.clipIntersection,l.wireframeLinewidth=r.wireframeLinewidth,l.linewidth=r.linewidth,!0===i.isPointLight&&!0===l.isMeshDistanceMaterial&&(l.referencePosition.setFromMatrixPosition(i.matrixWorld),l.nearDistance=s,l.farDistance=o),l}function E(n,i,s,o,a){if(!1===n.visible)return;if(n.layers.test(i.layers)&&(n.isMesh||n.isLine||n.isPoints)&&(n.castShadow||n.receiveShadow&&a===h)&&(!n.frustumCulled||r.intersectsObject(n))){n.modelViewMatrix.multiplyMatrices(s.matrixWorldInverse,n.matrixWorld);const r=e.update(n),i=n.material;if(Array.isArray(i)){const e=r.groups;for(let l=0,c=e.length;l<c;l++){const c=e[l],h=i[c.materialIndex];if(h&&h.visible){const e=T(n,r,h,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,c)}}}else if(i.visible){const e=T(n,r,i,o,s.near,s.far,a);t.renderBufferDirect(s,null,r,e,n,null)}}const l=n.children;for(let t=0,e=l.length;t<e;t++)E(l[t],i,s,o,a)}this.enabled=!1,this.autoUpdate=!0,this.needsUpdate=!1,this.type=l,this.render=function(e,a,l){if(!1===b.enabled)return;if(!1===b.autoUpdate&&!1===b.needsUpdate)return;if(0===e.length)return;const c=t.getRenderTarget(),u=t.getActiveCubeFace(),p=t.getActiveMipmapLevel(),d=t.state;d.setBlending(g),d.buffers.color.setClear(1,1,1,1),d.buffers.depth.setTest(!0),d.setScissorTest(!1);for(let m=0,f=e.length;m<f;m++){const c=e[m],u=c.shadow;if(void 0===u){console.warn("THREE.WebGLShadowMap:",c,"has no shadow.");continue}if(!1===u.autoUpdate&&!1===u.needsUpdate)continue;i.copy(u.mapSize);const p=u.getFrameExtents();if(i.multiply(p),s.copy(u.mapSize),(i.x>n||i.y>n)&&(i.x>n&&(s.x=Math.floor(n/p.x),i.x=s.x*p.x,u.mapSize.x=s.x),i.y>n&&(s.y=Math.floor(n/p.y),i.y=s.y*p.y,u.mapSize.y=s.y)),null===u.map&&!u.isPointLightShadow&&this.type===h){const t={minFilter:gt,magFilter:gt,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.mapPass=new jn(i.x,i.y,t),u.camera.updateProjectionMatrix()}if(null===u.map){const t={minFilter:ut,magFilter:ut,format:Nt};u.map=new jn(i.x,i.y,t),u.map.texture.name=c.name+".shadowMap",u.camera.updateProjectionMatrix()}t.setRenderTarget(u.map),t.clear();const f=u.getViewportCount();for(let t=0;t<f;t++){const e=u.getViewport(t);o.set(s.x*e.x,s.y*e.y,s.x*e.z,s.y*e.w),d.viewport(o),u.updateMatrices(c,t),r=u.getFrustum(),E(a,l,u.camera,c,this.type)}u.isPointLightShadow||this.type!==h||w(u,l),u.needsUpdate=!1}b.needsUpdate=!1,t.setRenderTarget(c,u,p)}}function oh(t,e,n){const o=n.isWebGL2;const a=new function(){let e=!1;const n=new Wn;let r=null;const i=new Wn(0,0,0,0);return{setMask:function(n){r===n||e||(t.colorMask(n,n,n,n),r=n)},setLocked:function(t){e=t},setClear:function(e,r,s,o,a){!0===a&&(e*=o,r*=o,s*=o),n.set(e,r,s,o),!1===i.equals(n)&&(t.clearColor(e,r,s,o),i.copy(n))},reset:function(){e=!1,r=null,i.set(-1,0,0,0)}}},l=new function(){let e=!1,n=null,r=null,i=null;return{setTest:function(t){t?mt(2929):ft(2929)},setMask:function(r){n===r||e||(t.depthMask(r),n=r)},setFunc:function(e){if(r!==e){if(e)switch(e){case 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ah(t,e,n,r,i,s,o){const a=i.isWebGL2,l=i.maxTextures,c=i.maxCubemapSize,h=i.maxTextureSize,u=i.maxSamples,p=new WeakMap;let d,m=!1;try{m="undefined"!=typeof OffscreenCanvas&&null!==new OffscreenCanvas(1,1).getContext("2d")}catch(z){}function f(t,e){return m?new OffscreenCanvas(t,e):document.createElementNS("http://www.w3.org/1999/xhtml","canvas")}function g(t,e,n,r){let i=1;if((t.width>r||t.height>r)&&(i=r/Math.max(t.width,t.height)),i<1||!0===e){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const r=e?Fn.floorPowerOfTwo:Math.floor,s=r(i*t.width),o=r(i*t.height);void 0===d&&(d=f(s,o));const a=n?f(s,o):d;return a.width=s,a.height=o,a.getContext("2d").drawImage(t,0,0,s,o),console.warn("THREE.WebGLRenderer: Texture has been resized from ("+t.width+"x"+t.height+") to ("+s+"x"+o+")."),a}return"data"in t&&console.warn("THREE.WebGLRenderer: 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r=b[e];n.texImage2D(34069+t,e+1,f,d,m,r.image[t])}}e.__maxMipLevel=b.length}v(r,p)&&y(34067,r,u.width,u.height);e.__version=r.version,r.onUpdate&&r.onUpdate(r)}(o,e,i):(n.activeTexture(33984+i),n.bindTexture(34067,o.__webglTexture))}const A={[lt]:10497,[ct]:33071,[ht]:33648},L={[ut]:9728,[pt]:9984,[mt]:9986,[gt]:9729,[xt]:9985,[yt]:9987};function R(n,s,o){if(o?(t.texParameteri(n,10242,A[s.wrapS]),t.texParameteri(n,10243,A[s.wrapT]),32879!==n&&35866!==n||t.texParameteri(n,32882,A[s.wrapR]),t.texParameteri(n,10240,L[s.magFilter]),t.texParameteri(n,10241,L[s.minFilter])):(t.texParameteri(n,10242,33071),t.texParameteri(n,10243,33071),32879!==n&&35866!==n||t.texParameteri(n,32882,33071),s.wrapS===ct&&s.wrapT===ct||console.warn("THREE.WebGLRenderer: Texture is not power of two. 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l=function(t){return!a&&(t.wrapS!==ct||t.wrapT!==ct||t.minFilter!==ut&&t.minFilter!==gt)}(r)&&!1===x(r.image),c=g(r.image,l,!1,h),u=x(c)||a,p=s.convert(r.format);let d,m=s.convert(r.type),f=_(r.internalFormat,p,m);R(o,r,u);const b=r.mipmaps;if(r.isDepthTexture)f=6402,a?f=r.type===At?36012:r.type===Et?33190:r.type===Dt?35056:33189:r.type===At&&console.error("WebGLRenderer: Floating point depth texture requires WebGL2."),r.format===Gt&&6402===f&&r.type!==St&&r.type!==Et&&(console.warn("THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture."),r.type=St,m=s.convert(r.type)),r.format===Ht&&6402===f&&(f=34041,r.type!==Dt&&(console.warn("THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture."),r.type=Dt,m=s.convert(r.type))),n.texImage2D(3553,0,f,c.width,c.height,0,p,m,null);else if(r.isDataTexture)if(b.length>0&&u){for(let 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n.texImage2D(3553,0,f,p,m,c),e.__maxMipLevel=0;v(r,u)&&y(o,r,c.width,c.height),e.__version=r.version,r.onUpdate&&r.onUpdate(r)}function D(e,i,o,a){const l=i.texture,c=s.convert(l.format),h=s.convert(l.type),u=_(l.internalFormat,c,h);32879===a||35866===a?n.texImage3D(a,0,u,i.width,i.height,i.depth,0,c,h,null):n.texImage2D(a,0,u,i.width,i.height,0,c,h,null),t.bindFramebuffer(36160,e),t.framebufferTexture2D(36160,o,a,r.get(l).__webglTexture,0),t.bindFramebuffer(36160,null)}function I(e,n,r){if(t.bindRenderbuffer(36161,e),n.depthBuffer&&!n.stencilBuffer){let i=33189;if(r){const e=n.depthTexture;e&&e.isDepthTexture&&(e.type===At?i=36012:e.type===Et&&(i=33190));const r=N(n);t.renderbufferStorageMultisample(36161,r,i,n.width,n.height)}else t.renderbufferStorage(36161,i,n.width,n.height);t.framebufferRenderbuffer(36160,36096,36161,e)}else if(n.depthBuffer&&n.stencilBuffer){if(r){const e=N(n);t.renderbufferStorageMultisample(36161,e,35056,n.width,n.height)}else 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n.COMPRESSED_RGBA_S3TC_DXT3_EXT;if(t===Jt)return n.COMPRESSED_RGBA_S3TC_DXT5_EXT}if(t===Qt||t===Kt||t===$t||t===te){if(null===(n=e.get("WEBGL_compressed_texture_pvrtc")))return null;if(t===Qt)return n.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;if(t===Kt)return n.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;if(t===$t)return n.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;if(t===te)return n.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG}if(t===ee)return null!==(n=e.get("WEBGL_compressed_texture_etc1"))?n.COMPRESSED_RGB_ETC1_WEBGL:null;if((t===ne||t===re)&&null!==(n=e.get("WEBGL_compressed_texture_etc"))){if(t===ne)return n.COMPRESSED_RGB8_ETC2;if(t===re)return n.COMPRESSED_RGBA8_ETC2_EAC}return 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e=c.get(t.inputSource);e&&e.dispatchEvent({type:t.type,data:t.inputSource})}function x(){c.forEach(function(t,e){t.disconnect(e)}),c.clear(),m=null,f=null,t.setFramebuffer(null),t.setRenderTarget(t.getRenderTarget()),M.stop(),n.isPresenting=!1,n.dispatchEvent({type:"sessionend"})}function v(t){const e=r.inputSources;for(let n=0;n<l.length;n++)c.set(e[n],l[n]);for(let n=0;n<t.removed.length;n++){const e=t.removed[n],r=c.get(e);r&&(r.dispatchEvent({type:"disconnected",data:e}),c.delete(e))}for(let n=0;n<t.added.length;n++){const e=t.added[n],r=c.get(e);r&&r.dispatchEvent({type:"connected",data:e})}}this.enabled=!1,this.isPresenting=!1,this.getController=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getTargetRaySpace()},this.getControllerGrip=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getGripSpace()},this.getHand=function(t){let e=l[t];return void 0===e&&(e=new uh,l[t]=e),e.getHandSpace()},this.setFramebufferScaleFactor=function(t){i=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.")},this.setReferenceSpaceType=function(t){o=t,!0===n.isPresenting&&console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.")},this.getReferenceSpace=function(){return s},this.getSession=function(){return r},this.setSession=async function(t){if(null!==(r=t)){r.addEventListener("select",g),r.addEventListener("selectstart",g),r.addEventListener("selectend",g),r.addEventListener("squeeze",g),r.addEventListener("squeezestart",g),r.addEventListener("squeezeend",g),r.addEventListener("end",x),r.addEventListener("inputsourceschange",v);const t=e.getContextAttributes();!0!==t.xrCompatible&&await e.makeXRCompatible();const a={antialias:t.antialias,alpha:t.alpha,depth:t.depth,stencil:t.stencil,framebufferScaleFactor:i},l=new XRWebGLLayer(r,e,a);r.updateRenderState({baseLayer:l}),s=await r.requestReferenceSpace(o),M.setContext(r),M.start(),n.isPresenting=!0,n.dispatchEvent({type:"sessionstart"})}};const y=new Yn,_=new Yn;function b(t,e){null===e?t.matrixWorld.copy(t.matrix):t.matrixWorld.multiplyMatrices(e.matrixWorld,t.matrix),t.matrixWorldInverse.copy(t.matrixWorld).invert()}this.getCamera=function(t){d.near=u.near=h.near=t.near,d.far=u.far=h.far=t.far,m===d.near&&f===d.far||(r.updateRenderState({depthNear:d.near,depthFar:d.far}),m=d.near,f=d.far);const e=t.parent,n=d.cameras;b(d,e);for(let r=0;r<n.length;r++)b(n[r],e);t.matrixWorld.copy(d.matrixWorld),t.matrix.copy(d.matrix),t.matrix.decompose(t.position,t.quaternion,t.scale);const i=t.children;for(let r=0,s=i.length;r<s;r++)i[r].updateMatrixWorld(!0);return 2===n.length?function(t,e,n){y.setFromMatrixPosition(e.matrixWorld),_.setFromMatrixPosition(n.matrixWorld);const 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r=e[t],s=n.getViewport(r),o=p[t];o.matrix.fromArray(r.transform.matrix),o.projectionMatrix.fromArray(r.projectionMatrix),o.viewport.set(s.x,s.y,s.width,s.height),0===t&&d.matrix.copy(o.matrix),!0===i&&d.cameras.push(o)}}const i=r.inputSources;for(let t=0;t<l.length;t++){const e=l[t],r=i[t];e.update(r,n,s)}w&&w(e,n)}),this.setAnimationLoop=function(t){w=t},this.dispose=function(){}}function dh(t){function e(e,n){e.opacity.value=n.opacity,n.color&&e.diffuse.value.copy(n.color),n.emissive&&e.emissive.value.copy(n.emissive).multiplyScalar(n.emissiveIntensity),n.map&&(e.map.value=n.map),n.alphaMap&&(e.alphaMap.value=n.alphaMap),n.specularMap&&(e.specularMap.value=n.specularMap);const r=t.get(n).envMap;if(r){e.envMap.value=r,e.flipEnvMap.value=r.isCubeTexture&&r._needsFlipEnvMap?-1:1,e.reflectivity.value=n.reflectivity,e.refractionRatio.value=n.refractionRatio;const i=t.get(r).__maxMipLevel;void 0!==i&&(e.maxMipLevel.value=i)}let i,s;n.lightMap&&(e.lightMap.value=n.lightMap,e.lightMapIntensity.value=n.lightMapIntensity),n.aoMap&&(e.aoMap.value=n.aoMap,e.aoMapIntensity.value=n.aoMapIntensity),n.map?i=n.map:n.specularMap?i=n.specularMap:n.displacementMap?i=n.displacementMap:n.normalMap?i=n.normalMap:n.bumpMap?i=n.bumpMap:n.roughnessMap?i=n.roughnessMap:n.metalnessMap?i=n.metalnessMap:n.alphaMap?i=n.alphaMap:n.emissiveMap?i=n.emissiveMap:n.clearcoatMap?i=n.clearcoatMap:n.clearcoatNormalMap?i=n.clearcoatNormalMap:n.clearcoatRoughnessMap&&(i=n.clearcoatRoughnessMap),void 0!==i&&(i.isWebGLRenderTarget&&(i=i.texture),!0===i.matrixAutoUpdate&&i.updateMatrix(),e.uvTransform.value.copy(i.matrix)),n.aoMap?s=n.aoMap:n.lightMap&&(s=n.lightMap),void 0!==s&&(s.isWebGLRenderTarget&&(s=s.texture),!0===s.matrixAutoUpdate&&s.updateMatrix(),e.uv2Transform.value.copy(s.matrix))}function 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Mt(t,e,n,r,i,s){if(t.onBeforeRender(f,e,n,r,i,s),t.modelViewMatrix.multiplyMatrices(n.matrixWorldInverse,t.matrixWorld),t.normalMatrix.getNormalMatrix(t.modelViewMatrix),t.isImmediateRenderObject){const r=Tt(n,e,i,t);W.setMaterial(i),ct.reset(),function(t,e){t.render(function(t){f.renderBufferImmediate(t,e)})}(t,r)}else f.renderBufferDirect(n,e,r,i,t,s);t.onAfterRender(f,e,n,r,i,s)}function St(t,e,n){!0!==e.isScene&&(e=H);const r=q.get(t),i=p.state.lights,s=p.state.shadowsArray,o=i.state.version,a=$.getParameters(t,i.state,s,e,n),l=$.getProgramCacheKey(a);let c=r.program,h=!0;if(r.environment=t.isMeshStandardMaterial?e.environment:null,r.fog=e.fog,r.envMap=Y.get(t.envMap||r.environment),void 0===c)t.addEventListener("dispose",xt);else if(c.cacheKey!==l)vt(t);else if(r.lightsStateVersion!==o)h=!1;else{if(void 0!==a.shaderID)return;h=!1}h&&(a.uniforms=$.getUniforms(t),t.onBeforeCompile(a,f),c=$.acquireProgram(a,l),r.program=c,r.uniforms=a.uniforms,r.outputEncoding=a.outputEncoding);const u=r.uniforms;(t.isShaderMaterial||t.isRawShaderMaterial)&&!0!==t.clipping||(r.numClippingPlanes=rt.numPlanes,r.numIntersection=rt.numIntersection,u.clippingPlanes=rt.uniform),r.needsLights=function(t){return t.isMeshLambertMaterial||t.isMeshToonMaterial||t.isMeshPhongMaterial||t.isMeshStandardMaterial||t.isShadowMaterial||t.isShaderMaterial&&!0===t.lights}(t),r.lightsStateVersion=o,r.needsLights&&(u.ambientLightColor.value=i.state.ambient,u.lightProbe.value=i.state.probe,u.directionalLights.value=i.state.directional,u.directionalLightShadows.value=i.state.directionalShadow,u.spotLights.value=i.state.spot,u.spotLightShadows.value=i.state.spotShadow,u.rectAreaLights.value=i.state.rectArea,u.ltc_1.value=i.state.rectAreaLTC1,u.ltc_2.value=i.state.rectAreaLTC2,u.pointLights.value=i.state.point,u.pointLightShadows.value=i.state.pointShadow,u.hemisphereLights.value=i.state.hemi,u.directionalShadowMap.value=i.state.directionalShadowMap,u.directionalShadowMatrix.value=i.state.directionalShadowMatrix,u.spotShadowMap.value=i.state.spotShadowMap,u.spotShadowMatrix.value=i.state.spotShadowMatrix,u.pointShadowMap.value=i.state.pointShadowMap,u.pointShadowMatrix.value=i.state.pointShadowMatrix);const d=r.program.getUniforms(),m=dc.seqWithValue(d.seq,u);r.uniformsList=m}function Tt(t,e,n,r){!0!==e.isScene&&(e=H),X.resetTextureUnits();const i=e.fog,s=n.isMeshStandardMaterial?e.environment:null,o=null===_?f.outputEncoding:_.texture.encoding,a=Y.get(n.envMap||s),l=q.get(n),c=p.state.lights;if(!0===F&&(!0===O||t!==M)){const e=t===M&&n.id===w;rt.setState(n,t,e)}n.version===l.__version?n.fog&&l.fog!==i?St(n,e,r):l.environment!==s?St(n,e,r):l.needsLights&&l.lightsStateVersion!==c.state.version?St(n,e,r):void 0===l.numClippingPlanes||l.numClippingPlanes===rt.numPlanes&&l.numIntersection===rt.numIntersection?l.outputEncoding!==o?St(n,e,r):l.envMap!==a&&St(n,e,r):St(n,e,r):(St(n,e,r),l.__version=n.version);let h=!1,u=!1,d=!1;const m=l.program,g=m.getUniforms(),x=l.uniforms;if(W.useProgram(m.program)&&(h=!0,u=!0,d=!0),n.id!==w&&(w=n.id,u=!0),h||M!==t){if(g.setValue(ht,"projectionMatrix",t.projectionMatrix),V.logarithmicDepthBuffer&&g.setValue(ht,"logDepthBufFC",2/(Math.log(t.far+1)/Math.LN2)),M!==t&&(M=t,u=!0,d=!0),n.isShaderMaterial||n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshStandardMaterial||n.envMap){const e=g.map.cameraPosition;void 0!==e&&e.setValue(ht,G.setFromMatrixPosition(t.matrixWorld))}(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial)&&g.setValue(ht,"isOrthographic",!0===t.isOrthographicCamera),(n.isMeshPhongMaterial||n.isMeshToonMaterial||n.isMeshLambertMaterial||n.isMeshBasicMaterial||n.isMeshStandardMaterial||n.isShaderMaterial||n.isShadowMaterial||n.skinning)&&g.setValue(ht,"viewMatrix",t.matrixWorldInverse)}if(n.skinning){g.setOptional(ht,r,"bindMatrix"),g.setOptional(ht,r,"bindMatrixInverse");const t=r.skeleton;if(t){const e=t.bones;if(V.floatVertexTextures){if(null===t.boneTexture){let n=Math.sqrt(4*e.length);n=Fn.ceilPowerOfTwo(n),n=Math.max(n,4);const r=new Float32Array(n*n*4);r.set(t.boneMatrices);const i=new Ms(r,n,n,Nt,At);t.boneMatrices=r,t.boneTexture=i,t.boneTextureSize=n}g.setValue(ht,"boneTexture",t.boneTexture,X),g.setValue(ht,"boneTextureSize",t.boneTextureSize)}else g.setOptional(ht,t,"boneMatrices")}}var v,y;return(u||l.receiveShadow!==r.receiveShadow)&&(l.receiveShadow=r.receiveShadow,g.setValue(ht,"receiveShadow",r.receiveShadow)),u&&(g.setValue(ht,"toneMappingExposure",f.toneMappingExposure),l.needsLights&&(y=d,(v=x).ambientLightColor.needsUpdate=y,v.lightProbe.needsUpdate=y,v.directionalLights.needsUpdate=y,v.directionalLightShadows.needsUpdate=y,v.pointLights.needsUpdate=y,v.pointLightShadows.needsUpdate=y,v.spotLights.needsUpdate=y,v.spotLightShadows.needsUpdate=y,v.rectAreaLights.needsUpdate=y,v.hemisphereLights.needsUpdate=y),i&&n.fog&&tt.refreshFogUniforms(x,i),tt.refreshMaterialUniforms(x,n,R,L),dc.upload(ht,l.uniformsList,x,X)),n.isShaderMaterial&&!0===n.uniformsNeedUpdate&&(dc.upload(ht,l.uniformsList,x,X),n.uniformsNeedUpdate=!1),n.isSpriteMaterial&&g.setValue(ht,"center",r.center),g.setValue(ht,"modelViewMatrix",r.modelViewMatrix),g.setValue(ht,"normalMatrix",r.normalMatrix),g.setValue(ht,"modelMatrix",r.matrixWorld),m}_t.setAnimationLoop(function(t){dt.isPresenting||yt&&yt(t)}),"undefined"!=typeof window&&_t.setContext(window),this.setAnimationLoop=function(t){yt=t,dt.setAnimationLoop(t),null===t?_t.stop():_t.start()},this.render=function(t,e){let n,r;if(void 0!==arguments[2]&&(console.warn("THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead."),n=arguments[2]),void 0!==arguments[3]&&(console.warn("THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead."),r=arguments[3]),void 0!==e&&!0!==e.isCamera)return void console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");if(!0===g)return;ct.resetDefaultState(),w=-1,M=null,!0===t.autoUpdate&&t.updateMatrixWorld(),null===e.parent&&e.updateMatrixWorld(),!0===dt.enabled&&!0===dt.isPresenting&&(e=dt.getCamera(e)),!0===t.isScene&&t.onBeforeRender(f,t,e,n||_),(p=nt.get(t,m.length)).init(),m.push(p),z.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),N.setFromProjectionMatrix(z),O=this.localClippingEnabled,F=rt.init(this.clippingPlanes,O,e),(u=et.get(t,d.length)).init(),d.push(u),function t(e,n,r,i){if(!1===e.visible)return;const s=e.layers.test(n.layers);if(s)if(e.isGroup)r=e.renderOrder;else if(e.isLOD)!0===e.autoUpdate&&e.update(n);else if(e.isLight)p.pushLight(e),e.castShadow&&p.pushShadow(e);else if(e.isSprite){if(!e.frustumCulled||N.intersectsSprite(e)){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;n.visible&&u.push(e,t,n,r,G.z,null)}}else if(e.isImmediateRenderObject)i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z),u.push(e,null,e.material,r,G.z,null);else if((e.isMesh||e.isLine||e.isPoints)&&(e.isSkinnedMesh&&e.skeleton.frame!==j.render.frame&&(e.skeleton.update(),e.skeleton.frame=j.render.frame),!e.frustumCulled||N.intersectsObject(e))){i&&G.setFromMatrixPosition(e.matrixWorld).applyMatrix4(z);const t=K.update(e),n=e.material;if(Array.isArray(n)){const i=t.groups;for(let s=0,o=i.length;s<o;s++){const o=i[s],a=n[o.materialIndex];a&&a.visible&&u.push(e,t,a,r,G.z,o)}}else n.visible&&u.push(e,t,n,r,G.z,null)}const o=e.children;for(let a=0,l=o.length;a<l;a++)t(o[a],n,r,i)}(t,e,0,f.sortObjects),u.finish(),!0===f.sortObjects&&u.sort(C,P),!0===F&&rt.beginShadows();const i=p.state.shadowsArray;mt.render(i,t,e),p.setupLights(),p.setupLightsView(e),!0===F&&rt.endShadows(),!0===this.info.autoReset&&this.info.reset(),void 0!==n&&this.setRenderTarget(n),it.render(u,t,e,r);const s=u.opaque,o=u.transparent;s.length>0&&wt(s,t,e),o.length>0&&wt(o,t,e),!0===t.isScene&&t.onAfterRender(f,t,e),null!==_&&(X.updateRenderTargetMipmap(_),X.updateMultisampleRenderTarget(_)),W.buffers.depth.setTest(!0),W.buffers.depth.setMask(!0),W.buffers.color.setMask(!0),W.setPolygonOffset(!1),m.pop(),p=m.length>0?m[m.length-1]:null,d.pop(),u=d.length>0?d[d.length-1]:null},this.setFramebuffer=function(t){x!==t&&null===_&&ht.bindFramebuffer(36160,t),x=t},this.getActiveCubeFace=function(){return v},this.getActiveMipmapLevel=function(){return y},this.getRenderTarget=function(){return _},this.setRenderTarget=function(t,e=0,n=0){_=t,v=e,y=n,t&&void 0===q.get(t).__webglFramebuffer&&X.setupRenderTarget(t);let r=x,i=!1,s=!1;if(t){const n=t.texture;(n.isDataTexture3D||n.isDataTexture2DArray)&&(s=!0);const o=q.get(t).__webglFramebuffer;t.isWebGLCubeRenderTarget?(r=o[e],i=!0):r=t.isWebGLMultisampleRenderTarget?q.get(t).__webglMultisampledFramebuffer:o,S.copy(t.viewport),T.copy(t.scissor),E=t.scissorTest}else S.copy(D).multiplyScalar(R).floor(),T.copy(I).multiplyScalar(R).floor(),E=B;if(b!==r&&(ht.bindFramebuffer(36160,r),b=r),W.viewport(S),W.scissor(T),W.setScissorTest(E),i){const r=q.get(t.texture);ht.framebufferTexture2D(36160,36064,34069+e,r.__webglTexture,n)}else if(s){const r=q.get(t.texture),i=e||0;ht.framebufferTextureLayer(36160,36064,r.__webglTexture,n||0,i)}},this.readRenderTargetPixels=function(t,e,n,r,i,s,o){if(!t||!t.isWebGLRenderTarget)return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");let a=q.get(t).__webglFramebuffer;if(t.isWebGLCubeRenderTarget&&void 0!==o&&(a=a[o]),a){let o=!1;a!==b&&(ht.bindFramebuffer(36160,a),o=!0);try{const a=t.texture,l=a.format,c=a.type;if(l!==Nt&&lt.convert(l)!==ht.getParameter(35739))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");const h=c===Lt&&(k.has("EXT_color_buffer_half_float")||V.isWebGL2&&k.has("EXT_color_buffer_float"));if(!(c===bt||lt.convert(c)===ht.getParameter(35738)||c===At&&(V.isWebGL2||k.has("OES_texture_float")||k.has("WEBGL_color_buffer_float"))||h))return void console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");36053===ht.checkFramebufferStatus(36160)?e>=0&&e<=t.width-r&&n>=0&&n<=t.height-i&&ht.readPixels(e,n,r,i,lt.convert(l),lt.convert(c),s):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.")}finally{o&&ht.bindFramebuffer(36160,b)}}},this.copyFramebufferToTexture=function(t,e,n=0){const r=Math.pow(2,-n),i=Math.floor(e.image.width*r),s=Math.floor(e.image.height*r),o=lt.convert(e.format);X.setTexture2D(e,0),ht.copyTexImage2D(3553,n,o,t.x,t.y,i,s,0),W.unbindTexture()},this.copyTextureToTexture=function(t,e,n,r=0){const i=e.image.width,s=e.image.height,o=lt.convert(n.format),a=lt.convert(n.type);X.setTexture2D(n,0),ht.pixelStorei(37440,n.flipY),ht.pixelStorei(37441,n.premultiplyAlpha),ht.pixelStorei(3317,n.unpackAlignment),e.isDataTexture?ht.texSubImage2D(3553,r,t.x,t.y,i,s,o,a,e.image.data):e.isCompressedTexture?ht.compressedTexSubImage2D(3553,r,t.x,t.y,e.mipmaps[0].width,e.mipmaps[0].height,o,e.mipmaps[0].data):ht.texSubImage2D(3553,r,t.x,t.y,o,a,e.image),0===r&&n.generateMipmaps&&ht.generateMipmap(3553),W.unbindTexture()},this.copyTextureToTexture3D=function(t,e,n,r,i=0){if(f.isWebGL1Renderer)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.");const{width:s,height:o,data:a}=n.image,l=lt.convert(r.format),c=lt.convert(r.type);let h;if(r.isDataTexture3D)X.setTexture3D(r,0),h=32879;else{if(!r.isDataTexture2DArray)return void console.warn("THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.");X.setTexture2DArray(r,0),h=35866}ht.pixelStorei(37440,r.flipY),ht.pixelStorei(37441,r.premultiplyAlpha),ht.pixelStorei(3317,r.unpackAlignment);const u=ht.getParameter(3314),p=ht.getParameter(32878),d=ht.getParameter(3316),m=ht.getParameter(3315),g=ht.getParameter(32877);ht.pixelStorei(3314,s),ht.pixelStorei(32878,o),ht.pixelStorei(3316,t.min.x),ht.pixelStorei(3315,t.min.y),ht.pixelStorei(32877,t.min.z),ht.texSubImage3D(h,i,e.x,e.y,e.z,t.max.x-t.min.x+1,t.max.y-t.min.y+1,t.max.z-t.min.z+1,l,c,a),ht.pixelStorei(3314,u),ht.pixelStorei(32878,p),ht.pixelStorei(3316,d),ht.pixelStorei(3315,m),ht.pixelStorei(32877,g),0===i&&r.generateMipmaps&&ht.generateMipmap(h),W.unbindTexture()},this.initTexture=function(t){X.setTexture2D(t,0),W.unbindTexture()},this.resetState=function(){W.reset(),ct.reset()},"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}exports.Group=hh,hh.prototype.isGroup=!0,Object.assign(uh.prototype,{constructor:uh,getHandSpace:function(){return null===this._hand&&(this._hand=new hh,this._hand.matrixAutoUpdate=!1,this._hand.visible=!1,this._hand.joints={},this._hand.inputState={pinching:!1}),this._hand},getTargetRaySpace:function(){return null===this._targetRay&&(this._targetRay=new hh,this._targetRay.matrixAutoUpdate=!1,this._targetRay.visible=!1),this._targetRay},getGripSpace:function(){return null===this._grip&&(this._grip=new hh,this._grip.matrixAutoUpdate=!1,this._grip.visible=!1),this._grip},dispatchEvent:function(t){return null!==this._targetRay&&this._targetRay.dispatchEvent(t),null!==this._grip&&this._grip.dispatchEvent(t),null!==this._hand&&this._hand.dispatchEvent(t),this},disconnect:function(t){return this.dispatchEvent({type:"disconnected",data:t}),null!==this._targetRay&&(this._targetRay.visible=!1),null!==this._grip&&(this._grip.visible=!1),null!==this._hand&&(this._hand.visible=!1),this},update:function(t,e,n){let r=null,i=null,s=null;const o=this._targetRay,a=this._grip,l=this._hand;if(t&&"visible-blurred"!==e.session.visibilityState)if(l&&t.hand){s=!0;for(const s of t.hand.values()){const t=e.getJointPose(s,n);if(void 0===l.joints[s.jointName]){const t=new hh;t.matrixAutoUpdate=!1,t.visible=!1,l.joints[s.jointName]=t,l.add(t)}const r=l.joints[s.jointName];null!==t&&(r.matrix.fromArray(t.transform.matrix),r.matrix.decompose(r.position,r.rotation,r.scale),r.jointRadius=t.radius),r.visible=null!==t}const r=l.joints["index-finger-tip"],i=l.joints["thumb-tip"],o=r.position.distanceTo(i.position),a=.02,c=.005;l.inputState.pinching&&o>a+c?(l.inputState.pinching=!1,this.dispatchEvent({type:"pinchend",handedness:t.handedness,target:this})):!l.inputState.pinching&&o<=a-c&&(l.inputState.pinching=!0,this.dispatchEvent({type:"pinchstart",handedness:t.handedness,target:this}))}else null!==o&&null!==(r=e.getPose(t.targetRaySpace,n))&&(o.matrix.fromArray(r.transform.matrix),o.matrix.decompose(o.position,o.rotation,o.scale)),null!==a&&t.gripSpace&&null!==(i=e.getPose(t.gripSpace,n))&&(a.matrix.fromArray(i.transform.matrix),a.matrix.decompose(a.position,a.rotation,a.scale));return null!==o&&(o.visible=null!==r),null!==a&&(a.visible=null!==i),null!==l&&(l.visible=null!==s),this}}),Object.assign(ph.prototype,In.prototype);class gh extends fh{}exports.WebGL1Renderer=gh,gh.prototype.isWebGL1Renderer=!0;class xh{constructor(t,e){this.name="",this.color=new xi(t),this.density=void 0!==e?e:25e-5}clone(){return new xh(this.color,this.density)}toJSON(){return{type:"FogExp2",color:this.color.getHex(),density:this.density}}}exports.FogExp2=xh,xh.prototype.isFogExp2=!0;class vh{constructor(t,e,n){this.name="",this.color=new xi(t),this.near=void 0!==e?e:1,this.far=void 0!==n?n:1e3}clone(){return new vh(this.color,this.near,this.far)}toJSON(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}}}exports.Fog=vh,vh.prototype.isFog=!0;class yh extends Xr{constructor(){super(),this.type="Scene",this.background=null,this.environment=null,this.fog=null,this.overrideMaterial=null,this.autoUpdate=!0,"undefined"!=typeof __THREE_DEVTOOLS__&&__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe",{detail:this}))}copy(t,e){return super.copy(t,e),null!==t.background&&(this.background=t.background.clone()),null!==t.environment&&(this.environment=t.environment.clone()),null!==t.fog&&(this.fog=t.fog.clone()),null!==t.overrideMaterial&&(this.overrideMaterial=t.overrideMaterial.clone()),this.autoUpdate=t.autoUpdate,this.matrixAutoUpdate=t.matrixAutoUpdate,this}toJSON(t){const e=super.toJSON(t);return null!==this.background&&(e.object.background=this.background.toJSON(t)),null!==this.environment&&(e.object.environment=this.environment.toJSON(t)),null!==this.fog&&(e.object.fog=this.fog.toJSON()),e}}function _h(t,e){this.array=t,this.stride=e,this.count=void 0!==t?t.length/e:0,this.usage=wn,this.updateRange={offset:0,count:-1},this.version=0,this.uuid=Fn.generateUUID()}exports.Scene=yh,yh.prototype.isScene=!0,Object.defineProperty(_h.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(_h.prototype,{isInterleavedBuffer:!0,onUploadCallback:function(){},setUsage:function(t){return this.usage=t,this},copy:function(t){return this.array=new t.array.constructor(t.array),this.count=t.count,this.stride=t.stride,this.usage=t.usage,this},copyAt:function(t,e,n){t*=this.stride,n*=e.stride;for(let r=0,i=this.stride;r<i;r++)this.array[t+r]=e.array[n+r];return this},set:function(t,e=0){return this.array.set(t,e),this},clone:function(t){void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer);const e=new _h(new this.array.constructor(t.arrayBuffers[this.array.buffer._uuid]),this.stride);return e.setUsage(this.usage),e},onUpload:function(t){return this.onUploadCallback=t,this},toJSON:function(t){return void 0===t.arrayBuffers&&(t.arrayBuffers={}),void 0===this.array.buffer._uuid&&(this.array.buffer._uuid=Fn.generateUUID()),void 0===t.arrayBuffers[this.array.buffer._uuid]&&(t.arrayBuffers[this.array.buffer._uuid]=Array.prototype.slice.call(new Uint32Array(this.array.buffer))),{uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride}}});const bh=new Yn;function wh(t,e,n,r){this.name="",this.data=t,this.itemSize=e,this.offset=n,this.normalized=!0===r}Object.defineProperties(wh.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}},needsUpdate:{set:function(t){this.data.needsUpdate=t}}}),Object.assign(wh.prototype,{isInterleavedBufferAttribute:!0,applyMatrix4:function(t){for(let e=0,n=this.data.count;e<n;e++)bh.x=this.getX(e),bh.y=this.getY(e),bh.z=this.getZ(e),bh.applyMatrix4(t),this.setXYZ(e,bh.x,bh.y,bh.z);return this},setX:function(t,e){return this.data.array[t*this.data.stride+this.offset]=e,this},setY:function(t,e){return this.data.array[t*this.data.stride+this.offset+1]=e,this},setZ:function(t,e){return this.data.array[t*this.data.stride+this.offset+2]=e,this},setW:function(t,e){return this.data.array[t*this.data.stride+this.offset+3]=e,this},getX:function(t){return this.data.array[t*this.data.stride+this.offset]},getY:function(t){return this.data.array[t*this.data.stride+this.offset+1]},getZ:function(t){return this.data.array[t*this.data.stride+this.offset+2]},getW:function(t){return this.data.array[t*this.data.stride+this.offset+3]},setXY:function(t,e,n){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this},setXYZ:function(t,e,n,r){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this},setXYZW:function(t,e,n,r,i){return t=t*this.data.stride+this.offset,this.data.array[t+0]=e,this.data.array[t+1]=n,this.data.array[t+2]=r,this.data.array[t+3]=i,this},clone:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return new bi(new this.array.constructor(t),this.itemSize,this.normalized)}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.clone(t)),new wh(t.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized)},toJSON:function(t){if(void 0===t){console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.");const t=[];for(let e=0;e<this.count;e++){const n=e*this.data.stride+this.offset;for(let e=0;e<this.itemSize;e++)t.push(this.data.array[n+e])}return{itemSize:this.itemSize,type:this.array.constructor.name,array:t,normalized:this.normalized}}return void 0===t.interleavedBuffers&&(t.interleavedBuffers={}),void 0===t.interleavedBuffers[this.data.uuid]&&(t.interleavedBuffers[this.data.uuid]=this.data.toJSON(t)),{isInterleavedBufferAttribute:!0,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized}}});class Mh extends hi{constructor(t){super(),this.type="SpriteMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.rotation=0,this.sizeAttenuation=!0,this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.rotation=t.rotation,this.sizeAttenuation=t.sizeAttenuation,this}}let Sh;exports.SpriteMaterial=Mh,Mh.prototype.isSpriteMaterial=!0;const Th=new Yn,Eh=new Yn,Ah=new Yn,Lh=new On,Rh=new On,Ch=new wr,Ph=new Yn,Dh=new Yn,Ih=new Yn,Bh=new On,Nh=new On,Fh=new On;class Oh extends Xr{constructor(t){if(super(),this.type="Sprite",void 0===Sh){Sh=new ki;const t=new _h(new Float32Array([-.5,-.5,0,0,0,.5,-.5,0,1,0,.5,.5,0,1,1,-.5,.5,0,0,1]),5);Sh.setIndex([0,1,2,0,2,3]),Sh.setAttribute("position",new wh(t,3,0,!1)),Sh.setAttribute("uv",new wh(t,2,3,!1))}this.geometry=Sh,this.material=void 0!==t?t:new Mh,this.center=new On(.5,.5)}raycast(t,e){null===t.camera&&console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.'),Eh.setFromMatrixScale(this.matrixWorld),Ch.copy(t.camera.matrixWorld),this.modelViewMatrix.multiplyMatrices(t.camera.matrixWorldInverse,this.matrixWorld),Ah.setFromMatrixPosition(this.modelViewMatrix),t.camera.isPerspectiveCamera&&!1===this.material.sizeAttenuation&&Eh.multiplyScalar(-Ah.z);const n=this.material.rotation;let r,i;0!==n&&(i=Math.cos(n),r=Math.sin(n));const s=this.center;zh(Ph.set(-.5,-.5,0),Ah,s,Eh,r,i),zh(Dh.set(.5,-.5,0),Ah,s,Eh,r,i),zh(Ih.set(.5,.5,0),Ah,s,Eh,r,i),Bh.set(0,0),Nh.set(1,0),Fh.set(1,1);let o=t.ray.intersectTriangle(Ph,Dh,Ih,!1,Th);if(null===o&&(zh(Dh.set(-.5,.5,0),Ah,s,Eh,r,i),Nh.set(0,1),null===(o=t.ray.intersectTriangle(Ph,Ih,Dh,!1,Th))))return;const a=t.ray.origin.distanceTo(Th);a<t.near||a>t.far||e.push({distance:a,point:Th.clone(),uv:li.getUV(Th,Ph,Dh,Ih,Bh,Nh,Fh,new On),face:null,object:this})}copy(t){return super.copy(t),void 0!==t.center&&this.center.copy(t.center),this.material=t.material,this}}function zh(t,e,n,r,i,s){Lh.subVectors(t,n).addScalar(.5).multiply(r),void 0!==i?(Rh.x=s*Lh.x-i*Lh.y,Rh.y=i*Lh.x+s*Lh.y):Rh.copy(Lh),t.copy(e),t.x+=Rh.x,t.y+=Rh.y,t.applyMatrix4(Ch)}exports.Sprite=Oh,Oh.prototype.isSprite=!0;const Gh=new Yn,Hh=new Yn;class Uh extends Xr{constructor(){super(),this._currentLevel=0,this.type="LOD",Object.defineProperties(this,{levels:{enumerable:!0,value:[]},isLOD:{value:!0}}),this.autoUpdate=!0}copy(t){super.copy(t,!1);const e=t.levels;for(let n=0,r=e.length;n<r;n++){const t=e[n];this.addLevel(t.object.clone(),t.distance)}return this.autoUpdate=t.autoUpdate,this}addLevel(t,e=0){e=Math.abs(e);const n=this.levels;let r;for(r=0;r<n.length&&!(e<n[r].distance);r++);return n.splice(r,0,{distance:e,object:t}),this.add(t),this}getCurrentLevel(){return this._currentLevel}getObjectForDistance(t){const e=this.levels;if(e.length>0){let n,r;for(n=1,r=e.length;n<r&&!(t<e[n].distance);n++);return e[n-1].object}return null}raycast(t,e){if(this.levels.length>0){Gh.setFromMatrixPosition(this.matrixWorld);const n=t.ray.origin.distanceTo(Gh);this.getObjectForDistance(n).raycast(t,e)}}update(t){const e=this.levels;if(e.length>1){Gh.setFromMatrixPosition(t.matrixWorld),Hh.setFromMatrixPosition(this.matrixWorld);const n=Gh.distanceTo(Hh)/t.zoom;let r,i;for(e[0].object.visible=!0,r=1,i=e.length;r<i&&n>=e[r].distance;r++)e[r-1].object.visible=!1,e[r].object.visible=!0;for(this._currentLevel=r-1;r<i;r++)e[r].object.visible=!1}}toJSON(t){const e=super.toJSON(t);!1===this.autoUpdate&&(e.object.autoUpdate=!1),e.object.levels=[];const n=this.levels;for(let r=0,i=n.length;r<i;r++){const t=n[r];e.object.levels.push({object:t.object.uuid,distance:t.distance})}return e}}exports.LOD=Uh;const kh=new Yn,Vh=new Wn,Wh=new Wn,jh=new Yn,qh=new wr;function Xh(t,e){os.call(this,t,e),this.type="SkinnedMesh",this.bindMode="attached",this.bindMatrix=new wr,this.bindMatrixInverse=new wr}function Yh(){Xr.call(this),this.type="Bone"}Xh.prototype=Object.assign(Object.create(os.prototype),{constructor:Xh,isSkinnedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.bindMode=t.bindMode,this.bindMatrix.copy(t.bindMatrix),this.bindMatrixInverse.copy(t.bindMatrixInverse),this.skeleton=t.skeleton,this},bind:function(t,e){this.skeleton=t,void 0===e&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),e=this.matrixWorld),this.bindMatrix.copy(e),this.bindMatrixInverse.copy(e).invert()},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){const t=new Wn,e=this.geometry.attributes.skinWeight;for(let n=0,r=e.count;n<r;n++){t.x=e.getX(n),t.y=e.getY(n),t.z=e.getZ(n),t.w=e.getW(n);const r=1/t.manhattanLength();r!==1/0?t.multiplyScalar(r):t.set(1,0,0,0),e.setXYZW(n,t.x,t.y,t.z,t.w)}},updateMatrixWorld:function(t){os.prototype.updateMatrixWorld.call(this,t),"attached"===this.bindMode?this.bindMatrixInverse.copy(this.matrixWorld).invert():"detached"===this.bindMode?this.bindMatrixInverse.copy(this.bindMatrix).invert():console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)},boneTransform:function(t,e){const n=this.skeleton,r=this.geometry;Vh.fromBufferAttribute(r.attributes.skinIndex,t),Wh.fromBufferAttribute(r.attributes.skinWeight,t),kh.fromBufferAttribute(r.attributes.position,t).applyMatrix4(this.bindMatrix),e.set(0,0,0);for(let i=0;i<4;i++){const t=Wh.getComponent(i);if(0!==t){const r=Vh.getComponent(i);qh.multiplyMatrices(n.bones[r].matrixWorld,n.boneInverses[r]),e.addScaledVector(jh.copy(kh).applyMatrix4(qh),t)}}return e.applyMatrix4(this.bindMatrixInverse)}}),Yh.prototype=Object.assign(Object.create(Xr.prototype),{constructor:Yh,isBone:!0});const Zh=new wr,Jh=new wr;class Qh{constructor(t=[],e=[]){this.uuid=Fn.generateUUID(),this.bones=t.slice(0),this.boneInverses=e,this.boneMatrices=null,this.boneTexture=null,this.boneTextureSize=0,this.frame=-1,this.init()}init(){const t=this.bones,e=this.boneInverses;if(this.boneMatrices=new Float32Array(16*t.length),0===e.length)this.calculateInverses();else if(t.length!==e.length){console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones."),this.boneInverses=[];for(let t=0,e=this.bones.length;t<e;t++)this.boneInverses.push(new wr)}}calculateInverses(){this.boneInverses.length=0;for(let t=0,e=this.bones.length;t<e;t++){const e=new wr;this.bones[t]&&e.copy(this.bones[t].matrixWorld).invert(),this.boneInverses.push(e)}}pose(){for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&e.matrixWorld.copy(this.boneInverses[t]).invert()}for(let t=0,e=this.bones.length;t<e;t++){const e=this.bones[t];e&&(e.parent&&e.parent.isBone?(e.matrix.copy(e.parent.matrixWorld).invert(),e.matrix.multiply(e.matrixWorld)):e.matrix.copy(e.matrixWorld),e.matrix.decompose(e.position,e.quaternion,e.scale))}}update(){const t=this.bones,e=this.boneInverses,n=this.boneMatrices,r=this.boneTexture;for(let i=0,s=t.length;i<s;i++){const r=t[i]?t[i].matrixWorld:Jh;Zh.multiplyMatrices(r,e[i]),Zh.toArray(n,16*i)}null!==r&&(r.needsUpdate=!0)}clone(){return new Qh(this.bones,this.boneInverses)}getBoneByName(t){for(let e=0,n=this.bones.length;e<n;e++){const n=this.bones[e];if(n.name===t)return n}}dispose(){null!==this.boneTexture&&(this.boneTexture.dispose(),this.boneTexture=null)}fromJSON(t,e){this.uuid=t.uuid;for(let n=0,r=t.bones.length;n<r;n++){const r=t.bones[n];let i=e[r];void 0===i&&(console.warn("THREE.Skeleton: No bone found with UUID:",r),i=new Yh),this.bones.push(i),this.boneInverses.push((new wr).fromArray(t.boneInverses[n]))}return this.init(),this}toJSON(){const t={metadata:{version:4.5,type:"Skeleton",generator:"Skeleton.toJSON"},bones:[],boneInverses:[]};t.uuid=this.uuid;const e=this.bones,n=this.boneInverses;for(let r=0,i=e.length;r<i;r++){const i=e[r];t.bones.push(i.uuid);const s=n[r];t.boneInverses.push(s.toArray())}return t}}exports.Skeleton=Qh;const Kh=new wr,$h=new wr,tu=[],eu=new os;function nu(t,e,n){os.call(this,t,e),this.instanceMatrix=new bi(new Float32Array(16*n),16),this.instanceColor=null,this.count=n,this.frustumCulled=!1}nu.prototype=Object.assign(Object.create(os.prototype),{constructor:nu,isInstancedMesh:!0,copy:function(t){return os.prototype.copy.call(this,t),this.instanceMatrix.copy(t.instanceMatrix),null!==t.instanceColor&&(this.instanceColor=t.instanceColor.clone()),this.count=t.count,this},getColorAt:function(t,e){e.fromArray(this.instanceColor.array,3*t)},getMatrixAt:function(t,e){e.fromArray(this.instanceMatrix.array,16*t)},raycast:function(t,e){const n=this.matrixWorld,r=this.count;if(eu.geometry=this.geometry,eu.material=this.material,void 0!==eu.material)for(let i=0;i<r;i++){this.getMatrixAt(i,Kh),$h.multiplyMatrices(n,Kh),eu.matrixWorld=$h,eu.raycast(t,tu);for(let t=0,n=tu.length;t<n;t++){const n=tu[t];n.instanceId=i,n.object=this,e.push(n)}tu.length=0}},setColorAt:function(t,e){null===this.instanceColor&&(this.instanceColor=new bi(new Float32Array(3*this.count),3)),e.toArray(this.instanceColor.array,3*t)},setMatrixAt:function(t,e){e.toArray(this.instanceMatrix.array,16*t)},updateMorphTargets:function(){},dispose:function(){this.dispatchEvent({type:"dispose"})}});class ru extends hi{constructor(t){super(),this.type="LineBasicMaterial",this.color=new xi(16777215),this.linewidth=1,this.linecap="round",this.linejoin="round",this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.linewidth=t.linewidth,this.linecap=t.linecap,this.linejoin=t.linejoin,this.morphTargets=t.morphTargets,this}}exports.LineBasicMaterial=ru,ru.prototype.isLineBasicMaterial=!0;const iu=new Yn,su=new Yn,ou=new wr,au=new br,lu=new dr;function cu(t=new ki,e=new ru){Xr.call(this),this.type="Line",this.geometry=t,this.material=e,this.updateMorphTargets()}cu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:cu,isLine:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[0];for(let t=1,r=e.count;t<r;t++)iu.fromBufferAttribute(e,t-1),su.fromBufferAttribute(e,t),n[t]=n[t-1],n[t]+=iu.distanceTo(su);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Line.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),lu.copy(n.boundingSphere),lu.applyMatrix4(r),lu.radius+=i,!1===t.ray.intersectsSphere(lu))return;ou.copy(r).invert(),au.copy(t.ray).applyMatrix4(ou);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s,a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=this.isLineSegments?2:1;if(n.isBufferGeometry){const r=n.index,i=n.attributes.position;if(null!==r){const n=r.array;for(let r=0,s=n.length-1;r<s;r+=u){const s=n[r],u=n[r+1];if(a.fromBufferAttribute(i,s),l.fromBufferAttribute(i,u),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const p=t.ray.origin.distanceTo(h);p<t.near||p>t.far||e.push({distance:p,point:c.clone().applyMatrix4(this.matrixWorld),index:r,face:null,faceIndex:null,object:this})}}else for(let n=0,s=i.count-1;n<s;n+=u){if(a.fromBufferAttribute(i,n),l.fromBufferAttribute(i,n+1),au.distanceSqToSegment(a,l,h,c)>o)continue;h.applyMatrix4(this.matrixWorld);const r=t.ray.origin.distanceTo(h);r<t.near||r>t.far||e.push({distance:r,point:c.clone().applyMatrix4(this.matrixWorld),index:n,face:null,faceIndex:null,object:this})}}else n.isGeometry&&console.error("THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});const hu=new Yn,uu=new Yn;function pu(t,e){cu.call(this,t,e),this.type="LineSegments"}pu.prototype=Object.assign(Object.create(cu.prototype),{constructor:pu,isLineSegments:!0,computeLineDistances:function(){const t=this.geometry;if(t.isBufferGeometry)if(null===t.index){const e=t.attributes.position,n=[];for(let t=0,r=e.count;t<r;t+=2)hu.fromBufferAttribute(e,t),uu.fromBufferAttribute(e,t+1),n[t]=0===t?0:n[t-1],n[t+1]=n[t]+hu.distanceTo(uu);t.setAttribute("lineDistance",new Ci(n,1))}else console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");else t.isGeometry&&console.error("THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");return this}});class du extends cu{constructor(t,e){super(t,e),this.type="LineLoop"}}exports.LineLoop=du,du.prototype.isLineLoop=!0;class mu extends hi{constructor(t){super(),this.type="PointsMaterial",this.color=new xi(16777215),this.map=null,this.alphaMap=null,this.size=1,this.sizeAttenuation=!0,this.morphTargets=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.alphaMap=t.alphaMap,this.size=t.size,this.sizeAttenuation=t.sizeAttenuation,this.morphTargets=t.morphTargets,this}}exports.PointsMaterial=mu,mu.prototype.isPointsMaterial=!0;const fu=new wr,gu=new br,xu=new dr,vu=new Yn;function yu(t=new ki,e=new mu){Xr.call(this),this.type="Points",this.geometry=t,this.material=e,this.updateMorphTargets()}function _u(t,e,n,r,i,s,o){const a=gu.distanceSqToPoint(t);if(a<n){const n=new Yn;gu.closestPointToPoint(t,n),n.applyMatrix4(r);const l=i.ray.origin.distanceTo(n);if(l<i.near||l>i.far)return;s.push({distance:l,distanceToRay:Math.sqrt(a),point:n,index:e,face:null,object:o})}}yu.prototype=Object.assign(Object.create(Xr.prototype),{constructor:yu,isPoints:!0,copy:function(t){return Xr.prototype.copy.call(this,t),this.material=t.material,this.geometry=t.geometry,this},raycast:function(t,e){const n=this.geometry,r=this.matrixWorld,i=t.params.Points.threshold;if(null===n.boundingSphere&&n.computeBoundingSphere(),xu.copy(n.boundingSphere),xu.applyMatrix4(r),xu.radius+=i,!1===t.ray.intersectsSphere(xu))return;fu.copy(r).invert(),gu.copy(t.ray).applyMatrix4(fu);const s=i/((this.scale.x+this.scale.y+this.scale.z)/3),o=s*s;if(n.isBufferGeometry){const i=n.index,s=n.attributes.position;if(null!==i){const n=i.array;for(let i=0,a=n.length;i<a;i++){const a=n[i];vu.fromBufferAttribute(s,a),_u(vu,a,o,r,t,e,this)}}else for(let n=0,a=s.count;n<a;n++)vu.fromBufferAttribute(s,n),_u(vu,n,o,r,t,e,this)}else console.error("THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.")},updateMorphTargets:function(){const t=this.geometry;if(t.isBufferGeometry){const e=t.morphAttributes,n=Object.keys(e);if(n.length>0){const t=e[n[0]];if(void 0!==t){this.morphTargetInfluences=[],this.morphTargetDictionary={};for(let e=0,n=t.length;e<n;e++){const n=t[e].name||String(e);this.morphTargetInfluences.push(0),this.morphTargetDictionary[n]=e}}}}else{const e=t.morphTargets;void 0!==e&&e.length>0&&console.error("THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.")}}});class bu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.format=void 0!==o?o:Bt,this.minFilter=void 0!==s?s:gt,this.magFilter=void 0!==i?i:gt,this.generateMipmaps=!1;const c=this;"requestVideoFrameCallback"in t&&t.requestVideoFrameCallback(function e(){c.needsUpdate=!0,t.requestVideoFrameCallback(e)})}clone(){return new this.constructor(this.image).copy(this)}update(){const t=this.image;!1==="requestVideoFrameCallback"in t&&t.readyState>=t.HAVE_CURRENT_DATA&&(this.needsUpdate=!0)}}exports.VideoTexture=bu,bu.prototype.isVideoTexture=!0;class wu extends kn{constructor(t,e,n,r,i,s,o,a,l,c,h,u){super(null,s,o,a,l,c,r,i,h,u),this.image={width:e,height:n},this.mipmaps=t,this.flipY=!1,this.generateMipmaps=!1}}exports.CompressedTexture=wu,wu.prototype.isCompressedTexture=!0;class Mu extends kn{constructor(t,e,n,r,i,s,o,a,l){super(t,e,n,r,i,s,o,a,l),this.needsUpdate=!0}}exports.CanvasTexture=Mu,Mu.prototype.isCanvasTexture=!0;class Su extends kn{constructor(t,e,n,r,i,s,o,a,l,c){if((c=void 0!==c?c:Gt)!==Gt&&c!==Ht)throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===n&&c===Gt&&(n=St),void 0===n&&c===Ht&&(n=Dt),super(null,r,i,s,o,a,c,n,l),this.image={width:t,height:e},this.magFilter=void 0!==o?o:ut,this.minFilter=void 0!==a?a:ut,this.flipY=!1,this.generateMipmaps=!1}}exports.DepthTexture=Su,Su.prototype.isDepthTexture=!0;class Tu extends ki{constructor(t=1,e=8,n=0,r=2*Math.PI){super(),this.type="CircleGeometry",this.parameters={radius:t,segments:e,thetaStart:n,thetaLength:r},e=Math.max(3,e);const i=[],s=[],o=[],a=[],l=new Yn,c=new On;s.push(0,0,0),o.push(0,0,1),a.push(.5,.5);for(let h=0,u=3;h<=e;h++,u+=3){const i=n+h/e*r;l.x=t*Math.cos(i),l.y=t*Math.sin(i),s.push(l.x,l.y,l.z),o.push(0,0,1),c.x=(s[u]/t+1)/2,c.y=(s[u+1]/t+1)/2,a.push(c.x,c.y)}for(let h=1;h<=e;h++)i.push(h,h+1,0);this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("normal",new Ci(o,3)),this.setAttribute("uv",new Ci(a,2))}}exports.CircleGeometry=exports.CircleBufferGeometry=Tu;class Eu extends ki{constructor(t=1,e=1,n=1,r=8,i=1,s=!1,o=0,a=2*Math.PI){super(),this.type="CylinderGeometry",this.parameters={radiusTop:t,radiusBottom:e,height:n,radialSegments:r,heightSegments:i,openEnded:s,thetaStart:o,thetaLength:a};const l=this;r=Math.floor(r),i=Math.floor(i);const c=[],h=[],u=[],p=[];let d=0;const m=[],f=n/2;let g=0;function x(n){const i=d,s=new On,m=new Yn;let x=0;const v=!0===n?t:e,y=!0===n?1:-1;for(let t=1;t<=r;t++)h.push(0,f*y,0),u.push(0,y,0),p.push(.5,.5),d++;const _=d;for(let t=0;t<=r;t++){const e=t/r*a+o,n=Math.cos(e),i=Math.sin(e);m.x=v*i,m.y=f*y,m.z=v*n,h.push(m.x,m.y,m.z),u.push(0,y,0),s.x=.5*n+.5,s.y=.5*i*y+.5,p.push(s.x,s.y),d++}for(let t=0;t<r;t++){const e=i+t,r=_+t;!0===n?c.push(r,r+1,e):c.push(r+1,r,e),x+=3}l.addGroup(g,x,!0===n?1:2),g+=x}!function(){const s=new Yn,x=new Yn;let v=0;const y=(e-t)/n;for(let l=0;l<=i;l++){const c=[],g=l/i,v=g*(e-t)+t;for(let t=0;t<=r;t++){const e=t/r,i=e*a+o,l=Math.sin(i),m=Math.cos(i);x.x=v*l,x.y=-g*n+f,x.z=v*m,h.push(x.x,x.y,x.z),s.set(l,y,m).normalize(),u.push(s.x,s.y,s.z),p.push(e,1-g),c.push(d++)}m.push(c)}for(let t=0;t<r;t++)for(let e=0;e<i;e++){const n=m[e][t],r=m[e+1][t],i=m[e+1][t+1],s=m[e][t+1];c.push(n,r,s),c.push(r,i,s),v+=6}l.addGroup(g,v,0),g+=v}(),!1===s&&(t>0&&x(!0),e>0&&x(!1)),this.setIndex(c),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}}exports.CylinderGeometry=exports.CylinderBufferGeometry=Eu;class Au extends Eu{constructor(t=1,e=1,n=8,r=1,i=!1,s=0,o=2*Math.PI){super(0,t,e,n,r,i,s,o),this.type="ConeGeometry",this.parameters={radius:t,height:e,radialSegments:n,heightSegments:r,openEnded:i,thetaStart:s,thetaLength:o}}}exports.ConeGeometry=exports.ConeBufferGeometry=Au;class Lu extends ki{constructor(t,e,n=1,r=0){super(),this.type="PolyhedronGeometry",this.parameters={vertices:t,indices:e,radius:n,detail:r};const i=[],s=[];function o(t,e,n,r){const i=r+1,s=[];for(let o=0;o<=i;o++){s[o]=[];const r=t.clone().lerp(n,o/i),a=e.clone().lerp(n,o/i),l=i-o;for(let t=0;t<=l;t++)s[o][t]=0===t&&o===i?r:r.clone().lerp(a,t/l)}for(let o=0;o<i;o++)for(let t=0;t<2*(i-o)-1;t++){const e=Math.floor(t/2);t%2==0?(a(s[o][e+1]),a(s[o+1][e]),a(s[o][e])):(a(s[o][e+1]),a(s[o+1][e+1]),a(s[o+1][e]))}}function a(t){i.push(t.x,t.y,t.z)}function l(e,n){const r=3*e;n.x=t[r+0],n.y=t[r+1],n.z=t[r+2]}function c(t,e,n,r){r<0&&1===t.x&&(s[e]=t.x-1),0===n.x&&0===n.z&&(s[e]=r/2/Math.PI+.5)}function h(t){return Math.atan2(t.z,-t.x)}!function(t){const n=new Yn,r=new Yn,i=new Yn;for(let s=0;s<e.length;s+=3)l(e[s+0],n),l(e[s+1],r),l(e[s+2],i),o(n,r,i,t)}(r),function(t){const e=new Yn;for(let n=0;n<i.length;n+=3)e.x=i[n+0],e.y=i[n+1],e.z=i[n+2],e.normalize().multiplyScalar(t),i[n+0]=e.x,i[n+1]=e.y,i[n+2]=e.z}(n),function(){const t=new Yn;for(let n=0;n<i.length;n+=3){t.x=i[n+0],t.y=i[n+1],t.z=i[n+2];const r=h(t)/2/Math.PI+.5,o=(e=t,Math.atan2(-e.y,Math.sqrt(e.x*e.x+e.z*e.z))/Math.PI+.5);s.push(r,1-o)}var e;(function(){const t=new Yn,e=new Yn,n=new Yn,r=new Yn,o=new On,a=new On,l=new On;for(let u=0,p=0;u<i.length;u+=9,p+=6){t.set(i[u+0],i[u+1],i[u+2]),e.set(i[u+3],i[u+4],i[u+5]),n.set(i[u+6],i[u+7],i[u+8]),o.set(s[p+0],s[p+1]),a.set(s[p+2],s[p+3]),l.set(s[p+4],s[p+5]),r.copy(t).add(e).add(n).divideScalar(3);const d=h(r);c(o,p+0,t,d),c(a,p+2,e,d),c(l,p+4,n,d)}})(),function(){for(let t=0;t<s.length;t+=6){const e=s[t+0],n=s[t+2],r=s[t+4],i=Math.max(e,n,r),o=Math.min(e,n,r);i>.9&&o<.1&&(e<.2&&(s[t+0]+=1),n<.2&&(s[t+2]+=1),r<.2&&(s[t+4]+=1))}}()}(),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(i.slice(),3)),this.setAttribute("uv",new Ci(s,2)),0===r?this.computeVertexNormals():this.normalizeNormals()}}exports.PolyhedronGeometry=exports.PolyhedronBufferGeometry=Lu;class Ru extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2,r=1/n;super([-1,-1,-1,-1,-1,1,-1,1,-1,-1,1,1,1,-1,-1,1,-1,1,1,1,-1,1,1,1,0,-r,-n,0,-r,n,0,r,-n,0,r,n,-r,-n,0,-r,n,0,r,-n,0,r,n,0,-n,0,-r,n,0,-r,-n,0,r,n,0,r],[3,11,7,3,7,15,3,15,13,7,19,17,7,17,6,7,6,15,17,4,8,17,8,10,17,10,6,8,0,16,8,16,2,8,2,10,0,12,1,0,1,18,0,18,16,6,10,2,6,2,13,6,13,15,2,16,18,2,18,3,2,3,13,18,1,9,18,9,11,18,11,3,4,14,12,4,12,0,4,0,8,11,9,5,11,5,19,11,19,7,19,5,14,19,14,4,19,4,17,1,12,14,1,14,5,1,5,9],t,e),this.type="DodecahedronGeometry",this.parameters={radius:t,detail:e}}}exports.DodecahedronGeometry=exports.DodecahedronBufferGeometry=Ru;const Cu=new Yn,Pu=new Yn,Du=new Yn,Iu=new li;class Bu extends ki{constructor(t,e){if(super(),this.type="EdgesGeometry",this.parameters={thresholdAngle:e},e=void 0!==e?e:1,!0===t.isGeometry)return void console.error("THREE.EdgesGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const n=Math.pow(10,4),r=Math.cos(Fn.DEG2RAD*e),i=t.getIndex(),s=t.getAttribute("position"),o=i?i.count:s.count,a=[0,0,0],l=["a","b","c"],c=new Array(3),h={},u=[];for(let p=0;p<o;p+=3){i?(a[0]=i.getX(p),a[1]=i.getX(p+1),a[2]=i.getX(p+2)):(a[0]=p,a[1]=p+1,a[2]=p+2);const{a:t,b:e,c:o}=Iu;if(t.fromBufferAttribute(s,a[0]),e.fromBufferAttribute(s,a[1]),o.fromBufferAttribute(s,a[2]),Iu.getNormal(Du),c[0]=`${Math.round(t.x*n)},${Math.round(t.y*n)},${Math.round(t.z*n)}`,c[1]=`${Math.round(e.x*n)},${Math.round(e.y*n)},${Math.round(e.z*n)}`,c[2]=`${Math.round(o.x*n)},${Math.round(o.y*n)},${Math.round(o.z*n)}`,c[0]!==c[1]&&c[1]!==c[2]&&c[2]!==c[0])for(let n=0;n<3;n++){const t=(n+1)%3,e=c[n],i=c[t],s=Iu[l[n]],o=Iu[l[t]],p=`${e}_${i}`,d=`${i}_${e}`;d in h&&h[d]?(Du.dot(h[d].normal)<=r&&(u.push(s.x,s.y,s.z),u.push(o.x,o.y,o.z)),h[d]=null):p in h||(h[p]={index0:a[n],index1:a[t],normal:Du.clone()})}}for(const p in h)if(h[p]){const{index0:t,index1:e}=h[p];Cu.fromBufferAttribute(s,t),Pu.fromBufferAttribute(s,e),u.push(Cu.x,Cu.y,Cu.z),u.push(Pu.x,Pu.y,Pu.z)}this.setAttribute("position",new Ci(u,3))}}exports.EdgesGeometry=Bu;const Nu={triangulate:function(t,e,n){n=n||2;const r=e&&e.length,i=r?e[0]*n:t.length;let s=Fu(t,0,i,n,!0);const o=[];if(!s||s.next===s.prev)return o;let a,l,c,h,u,p,d;if(r&&(s=Vu(t,e,s,n)),t.length>80*n){a=c=t[0],l=h=t[1];for(let e=n;e<i;e+=n)(u=t[e])<a&&(a=u),(p=t[e+1])<l&&(l=p),u>c&&(c=u),p>h&&(h=p);d=0!==(d=Math.max(c-a,h-l))?1/d:0}return zu(s,o,n,a,l,d),o}};function Fu(t,e,n,r,i){let s,o;if(i===pp(t,e,n,r)>0)for(s=e;s<n;s+=r)o=cp(s,t[s],t[s+1],o);else for(s=n-r;s>=e;s-=r)o=cp(s,t[s],t[s+1],o);return o&&ep(o,o.next)&&(hp(o),o=o.next),o}function Ou(t,e){if(!t)return t;e||(e=t);let n,r=t;do{if(n=!1,r.steiner||!ep(r,r.next)&&0!==tp(r.prev,r,r.next))r=r.next;else{if(hp(r),(r=e=r.prev)===r.next)break;n=!0}}while(n||r!==e);return e}function 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i=t;do{null===i.z&&(i.z=Ju(i.x,i.y,e,n,r)),i.prevZ=i.prev,i.nextZ=i.next,i=i.next}while(i!==t);i.prevZ.nextZ=null,i.prevZ=null,Zu(i)}function Zu(t){let e,n,r,i,s,o,a,l,c=1;do{for(n=t,t=null,s=null,o=0;n;){for(o++,r=n,a=0,e=0;e<c&&(a++,r=r.nextZ);e++);for(l=c;a>0||l>0&&r;)0!==a&&(0===l||!r||n.z<=r.z)?(i=n,n=n.nextZ,a--):(i=r,r=r.nextZ,l--),s?s.nextZ=i:t=i,i.prevZ=s,s=i;n=r}s.nextZ=null,c*=2}while(o>1);return t}function Ju(t,e,n,r,i){return(t=1431655765&((t=858993459&((t=252645135&((t=16711935&((t=32767*(t-n)*i)|t<<8))|t<<4))|t<<2))|t<<1))|(e=1431655765&((e=858993459&((e=252645135&((e=16711935&((e=32767*(e-r)*i)|e<<8))|e<<4))|e<<2))|e<<1))<<1}function Qu(t){let e=t,n=t;do{(e.x<n.x||e.x===n.x&&e.y<n.y)&&(n=e),e=e.next}while(e!==t);return n}function Ku(t,e,n,r,i,s,o,a){return(i-o)*(e-a)-(t-o)*(s-a)>=0&&(t-o)*(r-a)-(n-o)*(e-a)>=0&&(n-o)*(s-a)-(i-o)*(r-a)>=0}function $u(t,e){return t.next.i!==e.i&&t.prev.i!==e.i&&!sp(t,e)&&(op(t,e)&&op(e,t)&&ap(t,e)&&(tp(t.prev,t,e.prev)||tp(t,e.prev,e))||ep(t,e)&&tp(t.prev,t,t.next)>0&&tp(e.prev,e,e.next)>0)}function tp(t,e,n){return(e.y-t.y)*(n.x-e.x)-(e.x-t.x)*(n.y-e.y)}function ep(t,e){return t.x===e.x&&t.y===e.y}function np(t,e,n,r){const i=ip(tp(t,e,n)),s=ip(tp(t,e,r)),o=ip(tp(n,r,t)),a=ip(tp(n,r,e));return i!==s&&o!==a||(!(0!==i||!rp(t,n,e))||(!(0!==s||!rp(t,r,e))||(!(0!==o||!rp(n,t,r))||!(0!==a||!rp(n,e,r)))))}function rp(t,e,n){return e.x<=Math.max(t.x,n.x)&&e.x>=Math.min(t.x,n.x)&&e.y<=Math.max(t.y,n.y)&&e.y>=Math.min(t.y,n.y)}function ip(t){return t>0?1:t<0?-1:0}function sp(t,e){let n=t;do{if(n.i!==t.i&&n.next.i!==t.i&&n.i!==e.i&&n.next.i!==e.i&&np(n,n.next,t,e))return!0;n=n.next}while(n!==t);return!1}function op(t,e){return tp(t.prev,t,t.next)<0?tp(t,e,t.next)>=0&&tp(t,t.prev,e)>=0:tp(t,e,t.prev)<0||tp(t,t.next,e)<0}function ap(t,e){let n=t,r=!1;const i=(t.x+e.x)/2,s=(t.y+e.y)/2;do{n.y>s!=n.next.y>s&&n.next.y!==n.y&&i<(n.next.x-n.x)*(s-n.y)/(n.next.y-n.y)+n.x&&(r=!r),n=n.next}while(n!==t);return r}function lp(t,e){const n=new up(t.i,t.x,t.y),r=new up(e.i,e.x,e.y),i=t.next,s=e.prev;return t.next=e,e.prev=t,n.next=i,i.prev=n,r.next=n,n.prev=r,s.next=r,r.prev=s,r}function cp(t,e,n,r){const i=new up(t,e,n);return r?(i.next=r.next,i.prev=r,r.next.prev=i,r.next=i):(i.prev=i,i.next=i),i}function hp(t){t.next.prev=t.prev,t.prev.next=t.next,t.prevZ&&(t.prevZ.nextZ=t.nextZ),t.nextZ&&(t.nextZ.prevZ=t.prevZ)}function up(t,e,n){this.i=t,this.x=e,this.y=n,this.prev=null,this.next=null,this.z=null,this.prevZ=null,this.nextZ=null,this.steiner=!1}function pp(t,e,n,r){let i=0;for(let s=e,o=n-r;s<n;s+=r)i+=(t[o]-t[s])*(t[s+1]+t[o+1]),o=s;return i}const dp={area:function(t){const e=t.length;let n=0;for(let r=e-1,i=0;i<e;r=i++)n+=t[r].x*t[i].y-t[i].x*t[r].y;return.5*n},isClockWise:function(t){return dp.area(t)<0},triangulateShape:function(t,e){const n=[],r=[],i=[];mp(t),fp(n,t);let s=t.length;e.forEach(mp);for(let a=0;a<e.length;a++)r.push(s),s+=e[a].length,fp(n,e[a]);const o=Nu.triangulate(n,r);for(let a=0;a<o.length;a+=3)i.push(o.slice(a,a+3));return i}};function mp(t){const e=t.length;e>2&&t[e-1].equals(t[0])&&t.pop()}function fp(t,e){for(let n=0;n<e.length;n++)t.push(e[n].x),t.push(e[n].y)}exports.ShapeUtils=dp;class gp extends ki{constructor(t,e){super(),this.type="ExtrudeGeometry",this.parameters={shapes:t,options:e},t=Array.isArray(t)?t:[t];const n=this,r=[],i=[];for(let o=0,a=t.length;o<a;o++){s(t[o])}function s(t){const s=[],o=void 0!==e.curveSegments?e.curveSegments:12,a=void 0!==e.steps?e.steps:1;let l=void 0!==e.depth?e.depth:100,c=void 0===e.bevelEnabled||e.bevelEnabled,h=void 0!==e.bevelThickness?e.bevelThickness:6,u=void 0!==e.bevelSize?e.bevelSize:h-2,p=void 0!==e.bevelOffset?e.bevelOffset:0,d=void 0!==e.bevelSegments?e.bevelSegments:3;const m=e.extrudePath,f=void 0!==e.UVGenerator?e.UVGenerator:xp;void 0!==e.amount&&(console.warn("THREE.ExtrudeBufferGeometry: amount has been renamed to depth."),l=e.amount);let g,x,v,y,_,b=!1;m&&(g=m.getSpacedPoints(a),b=!0,c=!1,x=m.computeFrenetFrames(a,!1),v=new Yn,y=new Yn,_=new Yn),c||(d=0,h=0,u=0,p=0);const w=t.extractPoints(o);let M=w.shape;const S=w.holes;if(!dp.isClockWise(M)){M=M.reverse();for(let t=0,e=S.length;t<e;t++){const e=S[t];dp.isClockWise(e)&&(S[t]=e.reverse())}}const T=dp.triangulateShape(M,S),E=M;for(let e=0,n=S.length;e<n;e++){const t=S[e];M=M.concat(t)}function A(t,e,n){return e||console.error("THREE.ExtrudeGeometry: vec does not exist"),e.clone().multiplyScalar(n).add(t)}const L=M.length,R=T.length;function C(t,e,n){let r,i,s;const o=t.x-e.x,a=t.y-e.y,l=n.x-t.x,c=n.y-t.y,h=o*o+a*a,u=o*c-a*l;if(Math.abs(u)>Number.EPSILON){const u=Math.sqrt(h),p=Math.sqrt(l*l+c*c),d=e.x-a/u,m=e.y+o/u,f=((n.x-c/p-d)*c-(n.y+l/p-m)*l)/(o*c-a*l),g=(r=d+o*f-t.x)*r+(i=m+a*f-t.y)*i;if(g<=2)return new On(r,i);s=Math.sqrt(g/2)}else{let t=!1;o>Number.EPSILON?l>Number.EPSILON&&(t=!0):o<-Number.EPSILON?l<-Number.EPSILON&&(t=!0):Math.sign(a)===Math.sign(c)&&(t=!0),t?(r=-a,i=o,s=Math.sqrt(h)):(r=o,i=a,s=Math.sqrt(h/2))}return new On(r/s,i/s)}const P=[];for(let e=0,n=E.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),P[e]=C(E[e],E[r],E[i]);const D=[];let I,B=P.concat();for(let e=0,n=S.length;e<n;e++){const t=S[e];I=[];for(let e=0,n=t.length,r=n-1,i=e+1;e<n;e++,r++,i++)r===n&&(r=0),i===n&&(i=0),I[e]=C(t[e],t[r],t[i]);D.push(I),B=B.concat(I)}for(let e=0;e<d;e++){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,-n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);O(i.x,i.y,-n)}}}const N=u+p;for(let e=0;e<L;e++){const t=c?A(M[e],B[e],N):M[e];b?(y.copy(x.normals[0]).multiplyScalar(t.x),v.copy(x.binormals[0]).multiplyScalar(t.y),_.copy(g[0]).add(y).add(v),O(_.x,_.y,_.z)):O(t.x,t.y,0)}for(let e=1;e<=a;e++)for(let t=0;t<L;t++){const n=c?A(M[t],B[t],N):M[t];b?(y.copy(x.normals[e]).multiplyScalar(n.x),v.copy(x.binormals[e]).multiplyScalar(n.y),_.copy(g[e]).add(y).add(v),O(_.x,_.y,_.z)):O(n.x,n.y,l/a*e)}for(let e=d-1;e>=0;e--){const t=e/d,n=h*Math.cos(t*Math.PI/2),r=u*Math.sin(t*Math.PI/2)+p;for(let e=0,i=E.length;e<i;e++){const t=A(E[e],P[e],r);O(t.x,t.y,l+n)}for(let e=0,i=S.length;e<i;e++){const t=S[e];I=D[e];for(let e=0,i=t.length;e<i;e++){const i=A(t[e],I[e],r);b?O(i.x,i.y+g[a-1].y,g[a-1].x+n):O(i.x,i.y,l+n)}}}function F(t,e){let n=t.length;for(;--n>=0;){const r=n;let i=n-1;i<0&&(i=t.length-1);for(let t=0,n=a+2*d;t<n;t++){const n=L*t,s=L*(t+1);G(e+r+n,e+i+n,e+i+s,e+r+s)}}}function O(t,e,n){s.push(t),s.push(e),s.push(n)}function z(t,e,i){H(t),H(e),H(i);const s=r.length/3,o=f.generateTopUV(n,r,s-3,s-2,s-1);U(o[0]),U(o[1]),U(o[2])}function G(t,e,i,s){H(t),H(e),H(s),H(e),H(i),H(s);const o=r.length/3,a=f.generateSideWallUV(n,r,o-6,o-3,o-2,o-1);U(a[0]),U(a[1]),U(a[3]),U(a[1]),U(a[2]),U(a[3])}function H(t){r.push(s[3*t+0]),r.push(s[3*t+1]),r.push(s[3*t+2])}function U(t){i.push(t.x),i.push(t.y)}!function(){const t=r.length/3;if(c){let t=0,e=L*t;for(let n=0;n<R;n++){const t=T[n];z(t[2]+e,t[1]+e,t[0]+e)}e=L*(t=a+2*d);for(let n=0;n<R;n++){const t=T[n];z(t[0]+e,t[1]+e,t[2]+e)}}else{for(let t=0;t<R;t++){const e=T[t];z(e[2],e[1],e[0])}for(let t=0;t<R;t++){const e=T[t];z(e[0]+L*a,e[1]+L*a,e[2]+L*a)}}n.addGroup(t,r.length/3-t,0)}(),function(){const t=r.length/3;let e=0;F(E,e),e+=E.length;for(let n=0,r=S.length;n<r;n++){const t=S[n];F(t,e),e+=t.length}n.addGroup(t,r.length/3-t,1)}()}this.setAttribute("position",new Ci(r,3)),this.setAttribute("uv",new Ci(i,2)),this.computeVertexNormals()}toJSON(){const t=ki.prototype.toJSON.call(this);return vp(this.parameters.shapes,this.parameters.options,t)}}exports.ExtrudeGeometry=exports.ExtrudeBufferGeometry=gp;const xp={generateTopUV:function(t,e,n,r,i){const s=e[3*n],o=e[3*n+1],a=e[3*r],l=e[3*r+1],c=e[3*i],h=e[3*i+1];return[new On(s,o),new On(a,l),new On(c,h)]},generateSideWallUV:function(t,e,n,r,i,s){const o=e[3*n],a=e[3*n+1],l=e[3*n+2],c=e[3*r],h=e[3*r+1],u=e[3*r+2],p=e[3*i],d=e[3*i+1],m=e[3*i+2],f=e[3*s],g=e[3*s+1],x=e[3*s+2];return Math.abs(a-h)<.01?[new On(o,1-l),new On(c,1-u),new On(p,1-m),new On(f,1-x)]:[new On(a,1-l),new On(h,1-u),new On(d,1-m),new On(g,1-x)]}};function vp(t,e,n){if(n.shapes=[],Array.isArray(t))for(let r=0,i=t.length;r<i;r++){const e=t[r];n.shapes.push(e.uuid)}else n.shapes.push(t.uuid);return void 0!==e.extrudePath&&(n.options.extrudePath=e.extrudePath.toJSON()),n}class yp extends Lu{constructor(t=1,e=0){const n=(1+Math.sqrt(5))/2;super([-1,n,0,1,n,0,-1,-n,0,1,-n,0,0,-1,n,0,1,n,0,-1,-n,0,1,-n,n,0,-1,n,0,1,-n,0,-1,-n,0,1],[0,11,5,0,5,1,0,1,7,0,7,10,0,10,11,1,5,9,5,11,4,11,10,2,10,7,6,7,1,8,3,9,4,3,4,2,3,2,6,3,6,8,3,8,9,4,9,5,2,4,11,6,2,10,8,6,7,9,8,1],t,e),this.type="IcosahedronGeometry",this.parameters={radius:t,detail:e}}}exports.IcosahedronGeometry=exports.IcosahedronBufferGeometry=yp;class _p extends ki{constructor(t,e=12,n=0,r=2*Math.PI){super(),this.type="LatheGeometry",this.parameters={points:t,segments:e,phiStart:n,phiLength:r},e=Math.floor(e),r=Fn.clamp(r,0,2*Math.PI);const i=[],s=[],o=[],a=1/e,l=new Yn,c=new On;for(let h=0;h<=e;h++){const i=n+h*a*r,u=Math.sin(i),p=Math.cos(i);for(let n=0;n<=t.length-1;n++)l.x=t[n].x*u,l.y=t[n].y,l.z=t[n].x*p,s.push(l.x,l.y,l.z),c.x=h/e,c.y=n/(t.length-1),o.push(c.x,c.y)}for(let h=0;h<e;h++)for(let e=0;e<t.length-1;e++){const n=e+h*t.length,r=n,s=n+t.length,o=n+t.length+1,a=n+1;i.push(r,s,a),i.push(s,o,a)}if(this.setIndex(i),this.setAttribute("position",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2)),this.computeVertexNormals(),r===2*Math.PI){const n=this.attributes.normal.array,r=new Yn,i=new Yn,s=new Yn,o=e*t.length*3;for(let e=0,a=0;e<t.length;e++,a+=3)r.x=n[a+0],r.y=n[a+1],r.z=n[a+2],i.x=n[o+a+0],i.y=n[o+a+1],i.z=n[o+a+2],s.addVectors(r,i).normalize(),n[a+0]=n[o+a+0]=s.x,n[a+1]=n[o+a+1]=s.y,n[a+2]=n[o+a+2]=s.z}}}exports.LatheGeometry=exports.LatheBufferGeometry=_p;class bp extends Lu{constructor(t=1,e=0){super([1,0,0,-1,0,0,0,1,0,0,-1,0,0,0,1,0,0,-1],[0,2,4,0,4,3,0,3,5,0,5,2,1,2,5,1,5,3,1,3,4,1,4,2],t,e),this.type="OctahedronGeometry",this.parameters={radius:t,detail:e}}}function wp(t,e,n){ki.call(this),this.type="ParametricGeometry",this.parameters={func:t,slices:e,stacks:n};const r=[],i=[],s=[],o=[],a=new Yn,l=new Yn,c=new Yn,h=new Yn,u=new Yn;t.length<3&&console.error("THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.");const p=e+1;for(let d=0;d<=n;d++){const r=d/n;for(let n=0;n<=e;n++){const p=n/e;t(p,r,l),i.push(l.x,l.y,l.z),p-1e-5>=0?(t(p-1e-5,r,c),h.subVectors(l,c)):(t(p+1e-5,r,c),h.subVectors(c,l)),r-1e-5>=0?(t(p,r-1e-5,c),u.subVectors(l,c)):(t(p,r+1e-5,c),u.subVectors(c,l)),a.crossVectors(h,u).normalize(),s.push(a.x,a.y,a.z),o.push(p,r)}}for(let d=0;d<n;d++)for(let t=0;t<e;t++){const e=d*p+t,n=d*p+t+1,i=(d+1)*p+t+1,s=(d+1)*p+t;r.push(e,n,s),r.push(n,i,s)}this.setIndex(r),this.setAttribute("position",new Ci(i,3)),this.setAttribute("normal",new Ci(s,3)),this.setAttribute("uv",new Ci(o,2))}exports.OctahedronGeometry=exports.OctahedronBufferGeometry=bp,wp.prototype=Object.create(ki.prototype),wp.prototype.constructor=wp;class Mp extends ki{constructor(t=.5,e=1,n=8,r=1,i=0,s=2*Math.PI){super(),this.type="RingGeometry",this.parameters={innerRadius:t,outerRadius:e,thetaSegments:n,phiSegments:r,thetaStart:i,thetaLength:s},n=Math.max(3,n);const o=[],a=[],l=[],c=[];let h=t;const u=(e-t)/(r=Math.max(1,r)),p=new Yn,d=new On;for(let m=0;m<=r;m++){for(let t=0;t<=n;t++){const r=i+t/n*s;p.x=h*Math.cos(r),p.y=h*Math.sin(r),a.push(p.x,p.y,p.z),l.push(0,0,1),d.x=(p.x/e+1)/2,d.y=(p.y/e+1)/2,c.push(d.x,d.y)}h+=u}for(let m=0;m<r;m++){const t=m*(n+1);for(let e=0;e<n;e++){const r=e+t,i=r,s=r+n+1,a=r+n+2,l=r+1;o.push(i,s,l),o.push(s,a,l)}}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.RingGeometry=exports.RingBufferGeometry=Mp;class Sp extends ki{constructor(t,e=12){super(),this.type="ShapeGeometry",this.parameters={shapes:t,curveSegments:e};const n=[],r=[],i=[],s=[];let o=0,a=0;if(!1===Array.isArray(t))l(t);else for(let c=0;c<t.length;c++)l(t[c]),this.addGroup(o,a,c),o+=a,a=0;function l(t){const o=r.length/3,l=t.extractPoints(e);let c=l.shape;const h=l.holes;!1===dp.isClockWise(c)&&(c=c.reverse());for(let e=0,n=h.length;e<n;e++){const t=h[e];!0===dp.isClockWise(t)&&(h[e]=t.reverse())}const u=dp.triangulateShape(c,h);for(let e=0,n=h.length;e<n;e++){const t=h[e];c=c.concat(t)}for(let e=0,n=c.length;e<n;e++){const t=c[e];r.push(t.x,t.y,0),i.push(0,0,1),s.push(t.x,t.y)}for(let e=0,r=u.length;e<r;e++){const t=u[e],r=t[0]+o,i=t[1]+o,s=t[2]+o;n.push(r,i,s),a+=3}}this.setIndex(n),this.setAttribute("position",new Ci(r,3)),this.setAttribute("normal",new Ci(i,3)),this.setAttribute("uv",new Ci(s,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return Tp(this.parameters.shapes,t)}}function Tp(t,e){if(e.shapes=[],Array.isArray(t))for(let n=0,r=t.length;n<r;n++){const r=t[n];e.shapes.push(r.uuid)}else e.shapes.push(t.uuid);return e}exports.ShapeGeometry=exports.ShapeBufferGeometry=Sp;class Ep extends ki{constructor(t=1,e=8,n=6,r=0,i=2*Math.PI,s=0,o=Math.PI){super(),this.type="SphereGeometry",this.parameters={radius:t,widthSegments:e,heightSegments:n,phiStart:r,phiLength:i,thetaStart:s,thetaLength:o},e=Math.max(3,Math.floor(e)),n=Math.max(2,Math.floor(n));const a=Math.min(s+o,Math.PI);let l=0;const c=[],h=new Yn,u=new Yn,p=[],d=[],m=[],f=[];for(let g=0;g<=n;g++){const p=[],x=g/n;let v=0;0==g&&0==s?v=.5/e:g==n&&a==Math.PI&&(v=-.5/e);for(let n=0;n<=e;n++){const a=n/e;h.x=-t*Math.cos(r+a*i)*Math.sin(s+x*o),h.y=t*Math.cos(s+x*o),h.z=t*Math.sin(r+a*i)*Math.sin(s+x*o),d.push(h.x,h.y,h.z),u.copy(h).normalize(),m.push(u.x,u.y,u.z),f.push(a+v,1-x),p.push(l++)}c.push(p)}for(let g=0;g<n;g++)for(let t=0;t<e;t++){const e=c[g][t+1],r=c[g][t],i=c[g+1][t],o=c[g+1][t+1];(0!==g||s>0)&&p.push(e,r,o),(g!==n-1||a<Math.PI)&&p.push(r,i,o)}this.setIndex(p),this.setAttribute("position",new Ci(d,3)),this.setAttribute("normal",new Ci(m,3)),this.setAttribute("uv",new Ci(f,2))}}exports.SphereGeometry=exports.SphereBufferGeometry=Ep;class Ap extends Lu{constructor(t=1,e=0){super([1,1,1,-1,-1,1,-1,1,-1,1,-1,-1],[2,1,0,0,3,2,1,3,0,2,3,1],t,e),this.type="TetrahedronGeometry",this.parameters={radius:t,detail:e}}}exports.TetrahedronGeometry=exports.TetrahedronBufferGeometry=Ap;class Lp extends gp{constructor(t,e={}){const n=e.font;if(!n||!n.isFont)return console.error("THREE.TextGeometry: font parameter is not an instance of THREE.Font."),new ki;const r=n.generateShapes(t,e.size);e.depth=void 0!==e.height?e.height:50,void 0===e.bevelThickness&&(e.bevelThickness=10),void 0===e.bevelSize&&(e.bevelSize=8),void 0===e.bevelEnabled&&(e.bevelEnabled=!1),super(r,e),this.type="TextGeometry"}}exports.TextGeometry=exports.TextBufferGeometry=Lp;class Rp extends ki{constructor(t=1,e=.4,n=8,r=6,i=2*Math.PI){super(),this.type="TorusGeometry",this.parameters={radius:t,tube:e,radialSegments:n,tubularSegments:r,arc:i},n=Math.floor(n),r=Math.floor(r);const s=[],o=[],a=[],l=[],c=new Yn,h=new Yn,u=new Yn;for(let p=0;p<=n;p++)for(let s=0;s<=r;s++){const d=s/r*i,m=p/n*Math.PI*2;h.x=(t+e*Math.cos(m))*Math.cos(d),h.y=(t+e*Math.cos(m))*Math.sin(d),h.z=e*Math.sin(m),o.push(h.x,h.y,h.z),c.x=t*Math.cos(d),c.y=t*Math.sin(d),u.subVectors(h,c).normalize(),a.push(u.x,u.y,u.z),l.push(s/r),l.push(p/n)}for(let p=1;p<=n;p++)for(let t=1;t<=r;t++){const e=(r+1)*p+t-1,n=(r+1)*(p-1)+t-1,i=(r+1)*(p-1)+t,o=(r+1)*p+t;s.push(e,n,o),s.push(n,i,o)}this.setIndex(s),this.setAttribute("position",new Ci(o,3)),this.setAttribute("normal",new Ci(a,3)),this.setAttribute("uv",new Ci(l,2))}}exports.TorusGeometry=exports.TorusBufferGeometry=Rp;class Cp extends ki{constructor(t=1,e=.4,n=64,r=8,i=2,s=3){super(),this.type="TorusKnotGeometry",this.parameters={radius:t,tube:e,tubularSegments:n,radialSegments:r,p:i,q:s},n=Math.floor(n),r=Math.floor(r);const o=[],a=[],l=[],c=[],h=new Yn,u=new Yn,p=new Yn,d=new Yn,m=new Yn,f=new Yn,g=new Yn;for(let v=0;v<=n;++v){const o=v/n*i*Math.PI*2;x(o,i,s,t,p),x(o+.01,i,s,t,d),f.subVectors(d,p),g.addVectors(d,p),m.crossVectors(f,g),g.crossVectors(m,f),m.normalize(),g.normalize();for(let t=0;t<=r;++t){const i=t/r*Math.PI*2,s=-e*Math.cos(i),o=e*Math.sin(i);h.x=p.x+(s*g.x+o*m.x),h.y=p.y+(s*g.y+o*m.y),h.z=p.z+(s*g.z+o*m.z),a.push(h.x,h.y,h.z),u.subVectors(h,p).normalize(),l.push(u.x,u.y,u.z),c.push(v/n),c.push(t/r)}}for(let v=1;v<=n;v++)for(let t=1;t<=r;t++){const e=(r+1)*(v-1)+(t-1),n=(r+1)*v+(t-1),i=(r+1)*v+t,s=(r+1)*(v-1)+t;o.push(e,n,s),o.push(n,i,s)}function x(t,e,n,r,i){const s=Math.cos(t),o=Math.sin(t),a=n/e*t,l=Math.cos(a);i.x=r*(2+l)*.5*s,i.y=r*(2+l)*o*.5,i.z=r*Math.sin(a)*.5}this.setIndex(o),this.setAttribute("position",new Ci(a,3)),this.setAttribute("normal",new Ci(l,3)),this.setAttribute("uv",new Ci(c,2))}}exports.TorusKnotGeometry=exports.TorusKnotBufferGeometry=Cp;class Pp extends ki{constructor(t,e=64,n=1,r=8,i=!1){super(),this.type="TubeGeometry",this.parameters={path:t,tubularSegments:e,radius:n,radialSegments:r,closed:i};const s=t.computeFrenetFrames(e,i);this.tangents=s.tangents,this.normals=s.normals,this.binormals=s.binormals;const o=new Yn,a=new Yn,l=new On;let c=new Yn;const h=[],u=[],p=[],d=[];function m(i){c=t.getPointAt(i/e,c);const l=s.normals[i],p=s.binormals[i];for(let t=0;t<=r;t++){const e=t/r*Math.PI*2,i=Math.sin(e),s=-Math.cos(e);a.x=s*l.x+i*p.x,a.y=s*l.y+i*p.y,a.z=s*l.z+i*p.z,a.normalize(),u.push(a.x,a.y,a.z),o.x=c.x+n*a.x,o.y=c.y+n*a.y,o.z=c.z+n*a.z,h.push(o.x,o.y,o.z)}}!function(){for(let t=0;t<e;t++)m(t);m(!1===i?e:0),function(){for(let t=0;t<=e;t++)for(let n=0;n<=r;n++)l.x=t/e,l.y=n/r,p.push(l.x,l.y)}(),function(){for(let t=1;t<=e;t++)for(let e=1;e<=r;e++){const n=(r+1)*(t-1)+(e-1),i=(r+1)*t+(e-1),s=(r+1)*t+e,o=(r+1)*(t-1)+e;d.push(n,i,o),d.push(i,s,o)}}()}(),this.setIndex(d),this.setAttribute("position",new Ci(h,3)),this.setAttribute("normal",new Ci(u,3)),this.setAttribute("uv",new Ci(p,2))}toJSON(){const t=ki.prototype.toJSON.call(this);return t.path=this.parameters.path.toJSON(),t}}exports.TubeGeometry=exports.TubeBufferGeometry=Pp;class Dp extends ki{constructor(t){if(super(),this.type="WireframeGeometry",!0===t.isGeometry)return void console.error("THREE.WireframeGeometry no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.");const e=[],n=[0,0],r={},i=new Yn;if(null!==t.index){const s=t.attributes.position,o=t.index;let a=t.groups;0===a.length&&(a=[{start:0,count:o.count,materialIndex:0}]);for(let t=0,e=a.length;t<e;++t){const e=a[t],i=e.start;for(let t=i,s=i+e.count;t<s;t+=3)for(let e=0;e<3;e++){const i=o.getX(t+e),s=o.getX(t+(e+1)%3);n[0]=Math.min(i,s),n[1]=Math.max(i,s);const a=n[0]+","+n[1];void 0===r[a]&&(r[a]={index1:n[0],index2:n[1]})}}for(const t in r){const n=r[t];i.fromBufferAttribute(s,n.index1),e.push(i.x,i.y,i.z),i.fromBufferAttribute(s,n.index2),e.push(i.x,i.y,i.z)}}else{const n=t.attributes.position;for(let t=0,r=n.count/3;t<r;t++)for(let s=0;s<3;s++){const r=3*t+s;i.fromBufferAttribute(n,r),e.push(i.x,i.y,i.z);const o=3*t+(s+1)%3;i.fromBufferAttribute(n,o),e.push(i.x,i.y,i.z)}}this.setAttribute("position",new Ci(e,3))}}exports.WireframeGeometry=Dp;var Ip=Object.freeze({__proto__:null,BoxGeometry:cs,BoxBufferGeometry:cs,CircleGeometry:Tu,CircleBufferGeometry:Tu,ConeGeometry:Au,ConeBufferGeometry:Au,CylinderGeometry:Eu,CylinderBufferGeometry:Eu,DodecahedronGeometry:Ru,DodecahedronBufferGeometry:Ru,EdgesGeometry:Bu,ExtrudeGeometry:gp,ExtrudeBufferGeometry:gp,IcosahedronGeometry:yp,IcosahedronBufferGeometry:yp,LatheGeometry:_p,LatheBufferGeometry:_p,OctahedronGeometry:bp,OctahedronBufferGeometry:bp,ParametricGeometry:wp,ParametricBufferGeometry:wp,PlaneGeometry:Rs,PlaneBufferGeometry:Rs,PolyhedronGeometry:Lu,PolyhedronBufferGeometry:Lu,RingGeometry:Mp,RingBufferGeometry:Mp,ShapeGeometry:Sp,ShapeBufferGeometry:Sp,SphereGeometry:Ep,SphereBufferGeometry:Ep,TetrahedronGeometry:Ap,TetrahedronBufferGeometry:Ap,TextGeometry:Lp,TextBufferGeometry:Lp,TorusGeometry:Rp,TorusBufferGeometry:Rp,TorusKnotGeometry:Cp,TorusKnotBufferGeometry:Cp,TubeGeometry:Pp,TubeBufferGeometry:Pp,WireframeGeometry:Dp});class Bp extends hi{constructor(t){super(),this.type="ShadowMaterial",this.color=new xi(0),this.transparent=!0,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this}}exports.ShadowMaterial=Bp,Bp.prototype.isShadowMaterial=!0;class Np extends fs{constructor(t){super(t),this.type="RawShaderMaterial"}}function Fp(t){hi.call(this),this.defines={STANDARD:""},this.type="MeshStandardMaterial",this.color=new xi(16777215),this.roughness=1,this.metalness=0,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.roughnessMap=null,this.metalnessMap=null,this.alphaMap=null,this.envMap=null,this.envMapIntensity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.vertexTangents=!1,this.setValues(t)}function Op(t){Fp.call(this),this.defines={STANDARD:"",PHYSICAL:""},this.type="MeshPhysicalMaterial",this.clearcoat=0,this.clearcoatMap=null,this.clearcoatRoughness=0,this.clearcoatRoughnessMap=null,this.clearcoatNormalScale=new On(1,1),this.clearcoatNormalMap=null,this.reflectivity=.5,Object.defineProperty(this,"ior",{get:function(){return(1+.4*this.reflectivity)/(1-.4*this.reflectivity)},set:function(t){this.reflectivity=Fn.clamp(2.5*(t-1)/(t+1),0,1)}}),this.sheen=null,this.transmission=0,this.transmissionMap=null,this.setValues(t)}exports.RawShaderMaterial=Np,Np.prototype.isRawShaderMaterial=!0,Fp.prototype=Object.create(hi.prototype),Fp.prototype.constructor=Fp,Fp.prototype.isMeshStandardMaterial=!0,Fp.prototype.copy=function(t){return hi.prototype.copy.call(this,t),this.defines={STANDARD:""},this.color.copy(t.color),this.roughness=t.roughness,this.metalness=t.metalness,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.roughnessMap=t.roughnessMap,this.metalnessMap=t.metalnessMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.envMapIntensity=t.envMapIntensity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this.vertexTangents=t.vertexTangents,this},Op.prototype=Object.create(Fp.prototype),Op.prototype.constructor=Op,Op.prototype.isMeshPhysicalMaterial=!0,Op.prototype.copy=function(t){return Fp.prototype.copy.call(this,t),this.defines={STANDARD:"",PHYSICAL:""},this.clearcoat=t.clearcoat,this.clearcoatMap=t.clearcoatMap,this.clearcoatRoughness=t.clearcoatRoughness,this.clearcoatRoughnessMap=t.clearcoatRoughnessMap,this.clearcoatNormalMap=t.clearcoatNormalMap,this.clearcoatNormalScale.copy(t.clearcoatNormalScale),this.reflectivity=t.reflectivity,t.sheen?this.sheen=(this.sheen||new xi).copy(t.sheen):this.sheen=null,this.transmission=t.transmission,this.transmissionMap=t.transmissionMap,this};class zp extends hi{constructor(t){super(),this.type="MeshPhongMaterial",this.color=new xi(16777215),this.specular=new xi(1118481),this.shininess=30,this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.specular.copy(t.specular),this.shininess=t.shininess,this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshPhongMaterial=zp,zp.prototype.isMeshPhongMaterial=!0;class Gp extends hi{constructor(t){super(),this.defines={TOON:""},this.type="MeshToonMaterial",this.color=new xi(16777215),this.map=null,this.gradientMap=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.gradientMap=t.gradientMap,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshToonMaterial=Gp,Gp.prototype.isMeshToonMaterial=!0;class Hp extends hi{constructor(t){super(),this.type="MeshNormalMaterial",this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.wireframe=!1,this.wireframeLinewidth=1,this.fog=!1,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshNormalMaterial=Hp,Hp.prototype.isMeshNormalMaterial=!0;class Up extends hi{constructor(t){super(),this.type="MeshLambertMaterial",this.color=new xi(16777215),this.map=null,this.lightMap=null,this.lightMapIntensity=1,this.aoMap=null,this.aoMapIntensity=1,this.emissive=new xi(0),this.emissiveIntensity=1,this.emissiveMap=null,this.specularMap=null,this.alphaMap=null,this.envMap=null,this.combine=q,this.reflectivity=1,this.refractionRatio=.98,this.wireframe=!1,this.wireframeLinewidth=1,this.wireframeLinecap="round",this.wireframeLinejoin="round",this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.setValues(t)}copy(t){return super.copy(t),this.color.copy(t.color),this.map=t.map,this.lightMap=t.lightMap,this.lightMapIntensity=t.lightMapIntensity,this.aoMap=t.aoMap,this.aoMapIntensity=t.aoMapIntensity,this.emissive.copy(t.emissive),this.emissiveMap=t.emissiveMap,this.emissiveIntensity=t.emissiveIntensity,this.specularMap=t.specularMap,this.alphaMap=t.alphaMap,this.envMap=t.envMap,this.combine=t.combine,this.reflectivity=t.reflectivity,this.refractionRatio=t.refractionRatio,this.wireframe=t.wireframe,this.wireframeLinewidth=t.wireframeLinewidth,this.wireframeLinecap=t.wireframeLinecap,this.wireframeLinejoin=t.wireframeLinejoin,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this}}exports.MeshLambertMaterial=Up,Up.prototype.isMeshLambertMaterial=!0;class kp extends hi{constructor(t){super(),this.defines={MATCAP:""},this.type="MeshMatcapMaterial",this.color=new xi(16777215),this.matcap=null,this.map=null,this.bumpMap=null,this.bumpScale=1,this.normalMap=null,this.normalMapType=rn,this.normalScale=new On(1,1),this.displacementMap=null,this.displacementScale=1,this.displacementBias=0,this.alphaMap=null,this.skinning=!1,this.morphTargets=!1,this.morphNormals=!1,this.flatShading=!1,this.setValues(t)}copy(t){return super.copy(t),this.defines={MATCAP:""},this.color.copy(t.color),this.matcap=t.matcap,this.map=t.map,this.bumpMap=t.bumpMap,this.bumpScale=t.bumpScale,this.normalMap=t.normalMap,this.normalMapType=t.normalMapType,this.normalScale.copy(t.normalScale),this.displacementMap=t.displacementMap,this.displacementScale=t.displacementScale,this.displacementBias=t.displacementBias,this.alphaMap=t.alphaMap,this.skinning=t.skinning,this.morphTargets=t.morphTargets,this.morphNormals=t.morphNormals,this.flatShading=t.flatShading,this}}exports.MeshMatcapMaterial=kp,kp.prototype.isMeshMatcapMaterial=!0;class Vp extends ru{constructor(t){super(),this.type="LineDashedMaterial",this.scale=1,this.dashSize=3,this.gapSize=1,this.setValues(t)}copy(t){return super.copy(t),this.scale=t.scale,this.dashSize=t.dashSize,this.gapSize=t.gapSize,this}}exports.LineDashedMaterial=Vp,Vp.prototype.isLineDashedMaterial=!0;var Wp=Object.freeze({__proto__:null,ShadowMaterial:Bp,SpriteMaterial:Mh,RawShaderMaterial:Np,ShaderMaterial:fs,PointsMaterial:mu,MeshPhysicalMaterial:Op,MeshStandardMaterial:Fp,MeshPhongMaterial:zp,MeshToonMaterial:Gp,MeshNormalMaterial:Hp,MeshLambertMaterial:Up,MeshDepthMaterial:eh,MeshDistanceMaterial:nh,MeshBasicMaterial:vi,MeshMatcapMaterial:kp,LineDashedMaterial:Vp,LineBasicMaterial:ru,Material:hi});const jp={arraySlice:function(t,e,n){return jp.isTypedArray(t)?new t.constructor(t.subarray(e,void 0!==n?n:t.length)):t.slice(e,n)},convertArray:function(t,e,n){return!t||!n&&t.constructor===e?t:"number"==typeof e.BYTES_PER_ELEMENT?new e(t):Array.prototype.slice.call(t)},isTypedArray:function(t){return ArrayBuffer.isView(t)&&!(t instanceof DataView)},getKeyframeOrder:function(t){const e=t.length,n=new Array(e);for(let r=0;r!==e;++r)n[r]=r;return n.sort(function(e,n){return t[e]-t[n]}),n},sortedArray:function(t,e,n){const r=t.length,i=new t.constructor(r);for(let s=0,o=0;o!==r;++s){const r=n[s]*e;for(let n=0;n!==e;++n)i[o++]=t[r+n]}return i},flattenJSON:function(t,e,n,r){let i=1,s=t[0];for(;void 0!==s&&void 0===s[r];)s=t[i++];if(void 0===s)return;let o=s[r];if(void 0!==o)if(Array.isArray(o))do{void 0!==(o=s[r])&&(e.push(s.time),n.push.apply(n,o)),s=t[i++]}while(void 0!==s);else if(void 0!==o.toArray)do{void 0!==(o=s[r])&&(e.push(s.time),o.toArray(n,n.length)),s=t[i++]}while(void 0!==s);else do{void 0!==(o=s[r])&&(e.push(s.time),n.push(o)),s=t[i++]}while(void 0!==s)},subclip:function(t,e,n,r,i=30){const s=t.clone();s.name=e;const o=[];for(let l=0;l<s.tracks.length;++l){const t=s.tracks[l],e=t.getValueSize(),a=[],c=[];for(let s=0;s<t.times.length;++s){const o=t.times[s]*i;if(!(o<n||o>=r)){a.push(t.times[s]);for(let n=0;n<e;++n)c.push(t.values[s*e+n])}}0!==a.length&&(t.times=jp.convertArray(a,t.times.constructor),t.values=jp.convertArray(c,t.values.constructor),o.push(t))}s.tracks=o;let a=1/0;for(let l=0;l<s.tracks.length;++l)a>s.tracks[l].times[0]&&(a=s.tracks[l].times[0]);for(let l=0;l<s.tracks.length;++l)s.tracks[l].shift(-1*a);return s.resetDuration(),s},makeClipAdditive:function(t,e=0,n=t,r=30){r<=0&&(r=30);const i=n.tracks.length,s=e/r;for(let o=0;o<i;++o){const e=n.tracks[o],r=e.ValueTypeName;if("bool"===r||"string"===r)continue;const i=t.tracks.find(function(t){return t.name===e.name&&t.ValueTypeName===r});if(void 0===i)continue;let a=0;const l=e.getValueSize();e.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(a=l/3);let c=0;const h=i.getValueSize();i.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline&&(c=h/3);const u=e.times.length-1;let p;if(s<=e.times[0]){const t=a,n=l-a;p=jp.arraySlice(e.values,t,n)}else if(s>=e.times[u]){const t=u*l+a,n=t+l-a;p=jp.arraySlice(e.values,t,n)}else{const t=e.createInterpolant(),n=a,r=l-a;t.evaluate(s),p=jp.arraySlice(t.resultBuffer,n,r)}if("quaternion"===r){(new Xn).fromArray(p).normalize().conjugate().toArray(p)}const d=i.times.length;for(let t=0;t<d;++t){const e=t*h+c;if("quaternion"===r)Xn.multiplyQuaternionsFlat(i.values,e,p,0,i.values,e);else{const t=h-2*c;for(let n=0;n<t;++n)i.values[e+n]-=p[n]}}}return t.blendMode=Ve,t}};function qp(t,e,n,r){this.parameterPositions=t,this._cachedIndex=0,this.resultBuffer=void 0!==r?r:new e.constructor(n),this.sampleValues=e,this.valueSize=n}function Xp(t,e,n,r){qp.call(this,t,e,n,r),this._weightPrev=-0,this._offsetPrev=-0,this._weightNext=-0,this._offsetNext=-0}function Yp(t,e,n,r){qp.call(this,t,e,n,r)}function Zp(t,e,n,r){qp.call(this,t,e,n,r)}exports.AnimationUtils=jp,Object.assign(qp.prototype,{evaluate:function(t){const e=this.parameterPositions;let n=this._cachedIndex,r=e[n],i=e[n-1];t:{e:{let s;n:{r:if(!(t<r)){for(let s=n+2;;){if(void 0===r){if(t<i)break r;return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,t,i)}if(n===s)break;if(i=r,t<(r=e[++n]))break e}s=e.length;break n}if(t>=i)break t;{const o=e[1];t<o&&(n=2,i=o);for(let s=n-2;;){if(void 0===i)return this._cachedIndex=0,this.beforeStart_(0,t,r);if(n===s)break;if(r=i,t>=(i=e[--n-1]))break e}s=n,n=0}}for(;n<s;){const r=n+s>>>1;t<e[r]?s=r:n=r+1}if(r=e[n],void 0===(i=e[n-1]))return this._cachedIndex=0,this.beforeStart_(0,t,r);if(void 0===r)return n=e.length,this._cachedIndex=n,this.afterEnd_(n-1,i,t)}this._cachedIndex=n,this.intervalChanged_(n,i,r)}return this.interpolate_(n,i,t,r)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||this.DefaultSettings_},copySampleValue_:function(t){const e=this.resultBuffer,n=this.sampleValues,r=this.valueSize,i=t*r;for(let s=0;s!==r;++s)e[s]=n[i+s];return e},interpolate_:function(){throw new Error("call to abstract method")},intervalChanged_:function(){}}),Object.assign(qp.prototype,{beforeStart_:qp.prototype.copySampleValue_,afterEnd_:qp.prototype.copySampleValue_}),Xp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Xp,DefaultSettings_:{endingStart:Ge,endingEnd:Ge},intervalChanged_:function(t,e,n){const r=this.parameterPositions;let i=t-2,s=t+1,o=r[i],a=r[s];if(void 0===o)switch(this.getSettings_().endingStart){case He:i=t,o=2*e-n;break;case Ue:o=e+r[i=r.length-2]-r[i+1];break;default:i=t,o=n}if(void 0===a)switch(this.getSettings_().endingEnd){case He:s=t,a=2*n-e;break;case Ue:s=1,a=n+r[1]-r[0];break;default:s=t-1,a=e}const l=.5*(n-e),c=this.valueSize;this._weightPrev=l/(e-o),this._weightNext=l/(a-n),this._offsetPrev=i*c,this._offsetNext=s*c},interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=this._offsetPrev,h=this._offsetNext,u=this._weightPrev,p=this._weightNext,d=(n-e)/(r-e),m=d*d,f=m*d,g=-u*f+2*u*m-u*d,x=(1+u)*f+(-1.5-2*u)*m+(-.5+u)*d+1,v=(-1-p)*f+(1.5+p)*m+.5*d,y=p*f-p*m;for(let _=0;_!==o;++_)i[_]=g*s[c+_]+x*s[l+_]+v*s[a+_]+y*s[h+_];return i}}),Yp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Yp,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=t*o,l=a-o,c=(n-e)/(r-e),h=1-c;for(let u=0;u!==o;++u)i[u]=s[l+u]*h+s[a+u]*c;return i}}),Zp.prototype=Object.assign(Object.create(qp.prototype),{constructor:Zp,interpolate_:function(t){return this.copySampleValue_(t-1)}});class Jp{constructor(t,e,n,r){if(void 0===t)throw new Error("THREE.KeyframeTrack: track name is undefined");if(void 0===e||0===e.length)throw new Error("THREE.KeyframeTrack: no keyframes in track named "+t);this.name=t,this.times=jp.convertArray(e,this.TimeBufferType),this.values=jp.convertArray(n,this.ValueBufferType),this.setInterpolation(r||this.DefaultInterpolation)}static toJSON(t){const e=t.constructor;let n;if(e.toJSON!==this.toJSON)n=e.toJSON(t);else{n={name:t.name,times:jp.convertArray(t.times,Array),values:jp.convertArray(t.values,Array)};const e=t.getInterpolation();e!==t.DefaultInterpolation&&(n.interpolation=e)}return n.type=t.ValueTypeName,n}InterpolantFactoryMethodDiscrete(t){return new Zp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodLinear(t){return new Yp(this.times,this.values,this.getValueSize(),t)}InterpolantFactoryMethodSmooth(t){return new Xp(this.times,this.values,this.getValueSize(),t)}setInterpolation(t){let e;switch(t){case Fe:e=this.InterpolantFactoryMethodDiscrete;break;case Oe:e=this.InterpolantFactoryMethodLinear;break;case ze:e=this.InterpolantFactoryMethodSmooth}if(void 0===e){const e="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant){if(t===this.DefaultInterpolation)throw new Error(e);this.setInterpolation(this.DefaultInterpolation)}return console.warn("THREE.KeyframeTrack:",e),this}return this.createInterpolant=e,this}getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return Fe;case this.InterpolantFactoryMethodLinear:return Oe;case this.InterpolantFactoryMethodSmooth:return ze}}getValueSize(){return this.values.length/this.times.length}shift(t){if(0!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]+=t}return this}scale(t){if(1!==t){const e=this.times;for(let n=0,r=e.length;n!==r;++n)e[n]*=t}return this}trim(t,e){const n=this.times,r=n.length;let i=0,s=r-1;for(;i!==r&&n[i]<t;)++i;for(;-1!==s&&n[s]>e;)--s;if(++s,0!==i||s!==r){i>=s&&(i=(s=Math.max(s,1))-1);const t=this.getValueSize();this.times=jp.arraySlice(n,i,s),this.values=jp.arraySlice(this.values,i*t,s*t)}return this}validate(){let t=!0;const e=this.getValueSize();e-Math.floor(e)!=0&&(console.error("THREE.KeyframeTrack: Invalid value size in track.",this),t=!1);const n=this.times,r=this.values,i=n.length;0===i&&(console.error("THREE.KeyframeTrack: Track is empty.",this),t=!1);let s=null;for(let o=0;o!==i;o++){const e=n[o];if("number"==typeof e&&isNaN(e)){console.error("THREE.KeyframeTrack: Time is not a valid number.",this,o,e),t=!1;break}if(null!==s&&s>e){console.error("THREE.KeyframeTrack: Out of order keys.",this,o,e,s),t=!1;break}s=e}if(void 0!==r&&jp.isTypedArray(r))for(let o=0,a=r.length;o!==a;++o){const e=r[o];if(isNaN(e)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,o,e),t=!1;break}}return t}optimize(){const t=jp.arraySlice(this.times),e=jp.arraySlice(this.values),n=this.getValueSize(),r=this.getInterpolation()===ze,i=t.length-1;let s=1;for(let o=1;o<i;++o){let i=!1;const a=t[o];if(a!==t[o+1]&&(1!==o||a!==t[0]))if(r)i=!0;else{const t=o*n,r=t-n,s=t+n;for(let o=0;o!==n;++o){const n=e[t+o];if(n!==e[r+o]||n!==e[s+o]){i=!0;break}}}if(i){if(o!==s){t[s]=t[o];const r=o*n,i=s*n;for(let t=0;t!==n;++t)e[i+t]=e[r+t]}++s}}if(i>0){t[s]=t[i];for(let t=i*n,r=s*n,o=0;o!==n;++o)e[r+o]=e[t+o];++s}return s!==t.length?(this.times=jp.arraySlice(t,0,s),this.values=jp.arraySlice(e,0,s*n)):(this.times=t,this.values=e),this}clone(){const t=jp.arraySlice(this.times,0),e=jp.arraySlice(this.values,0),n=new(0,this.constructor)(this.name,t,e);return n.createInterpolant=this.createInterpolant,n}}exports.KeyframeTrack=Jp,Jp.prototype.TimeBufferType=Float32Array,Jp.prototype.ValueBufferType=Float32Array,Jp.prototype.DefaultInterpolation=Oe;class Qp extends Jp{}exports.BooleanKeyframeTrack=Qp,Qp.prototype.ValueTypeName="bool",Qp.prototype.ValueBufferType=Array,Qp.prototype.DefaultInterpolation=Fe,Qp.prototype.InterpolantFactoryMethodLinear=void 0,Qp.prototype.InterpolantFactoryMethodSmooth=void 0;class Kp extends Jp{}exports.ColorKeyframeTrack=Kp,Kp.prototype.ValueTypeName="color";class $p extends Jp{}function td(t,e,n,r){qp.call(this,t,e,n,r)}exports.NumberKeyframeTrack=$p,$p.prototype.ValueTypeName="number",td.prototype=Object.assign(Object.create(qp.prototype),{constructor:td,interpolate_:function(t,e,n,r){const i=this.resultBuffer,s=this.sampleValues,o=this.valueSize,a=(n-e)/(r-e);let l=t*o;for(let c=l+o;l!==c;l+=4)Xn.slerpFlat(i,0,s,l-o,s,l,a);return i}});class ed extends Jp{InterpolantFactoryMethodLinear(t){return new td(this.times,this.values,this.getValueSize(),t)}}exports.QuaternionKeyframeTrack=ed,ed.prototype.ValueTypeName="quaternion",ed.prototype.DefaultInterpolation=Oe,ed.prototype.InterpolantFactoryMethodSmooth=void 0;class nd extends Jp{}exports.StringKeyframeTrack=nd,nd.prototype.ValueTypeName="string",nd.prototype.ValueBufferType=Array,nd.prototype.DefaultInterpolation=Fe,nd.prototype.InterpolantFactoryMethodLinear=void 0,nd.prototype.InterpolantFactoryMethodSmooth=void 0;class rd extends Jp{}exports.VectorKeyframeTrack=rd,rd.prototype.ValueTypeName="vector";class id{constructor(t,e=-1,n,r=ke){this.name=t,this.tracks=n,this.duration=e,this.blendMode=r,this.uuid=Fn.generateUUID(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],n=t.tracks,r=1/(t.fps||1);for(let s=0,o=n.length;s!==o;++s)e.push(od(n[s]).scale(r));const i=new this(t.name,t.duration,e,t.blendMode);return i.uuid=t.uuid,i}static toJSON(t){const e=[],n=t.tracks,r={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let i=0,s=n.length;i!==s;++i)e.push(Jp.toJSON(n[i]));return r}static CreateFromMorphTargetSequence(t,e,n,r){const i=e.length,s=[];for(let o=0;o<i;o++){let t=[],a=[];t.push((o+i-1)%i,o,(o+1)%i),a.push(0,1,0);const l=jp.getKeyframeOrder(t);t=jp.sortedArray(t,1,l),a=jp.sortedArray(a,1,l),r||0!==t[0]||(t.push(i),a.push(a[0])),s.push(new $p(".morphTargetInfluences["+e[o].name+"]",t,a).scale(1/n))}return new this(t,-1,s)}static findByName(t,e){let n=t;if(!Array.isArray(t)){const e=t;n=e.geometry&&e.geometry.animations||e.animations}for(let r=0;r<n.length;r++)if(n[r].name===e)return n[r];return null}static CreateClipsFromMorphTargetSequences(t,e,n){const r={},i=/^([\w-]*?)([\d]+)$/;for(let o=0,a=t.length;o<a;o++){const e=t[o],n=e.name.match(i);if(n&&n.length>1){const t=n[1];let i=r[t];i||(r[t]=i=[]),i.push(e)}}const s=[];for(const o in r)s.push(this.CreateFromMorphTargetSequence(o,r[o],e,n));return s}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const n=function(t,e,n,r,i){if(0!==n.length){const s=[],o=[];jp.flattenJSON(n,s,o,r),0!==s.length&&i.push(new t(e,s,o))}},r=[],i=t.name||"default",s=t.fps||30,o=t.blendMode;let a=t.length||-1;const l=t.hierarchy||[];for(let c=0;c<l.length;c++){const t=l[c].keys;if(t&&0!==t.length)if(t[0].morphTargets){const e={};let n;for(n=0;n<t.length;n++)if(t[n].morphTargets)for(let r=0;r<t[n].morphTargets.length;r++)e[t[n].morphTargets[r]]=-1;for(const i in e){const e=[],s=[];for(let r=0;r!==t[n].morphTargets.length;++r){const r=t[n];e.push(r.time),s.push(r.morphTarget===i?1:0)}r.push(new $p(".morphTargetInfluence["+i+"]",e,s))}a=e.length*(s||1)}else{const i=".bones["+e[c].name+"]";n(rd,i+".position",t,"pos",r),n(ed,i+".quaternion",t,"rot",r),n(rd,i+".scale",t,"scl",r)}}return 0===r.length?null:new this(i,a,r,o)}resetDuration(){let t=0;for(let e=0,n=this.tracks.length;e!==n;++e){const n=this.tracks[e];t=Math.max(t,n.times[n.times.length-1])}return this.duration=t,this}trim(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].trim(0,this.duration);return this}validate(){let t=!0;for(let e=0;e<this.tracks.length;e++)t=t&&this.tracks[e].validate();return t}optimize(){for(let t=0;t<this.tracks.length;t++)this.tracks[t].optimize();return this}clone(){const t=[];for(let e=0;e<this.tracks.length;e++)t.push(this.tracks[e].clone());return new this.constructor(this.name,this.duration,t,this.blendMode)}toJSON(){return this.constructor.toJSON(this)}}function sd(t){switch(t.toLowerCase()){case"scalar":case"double":case"float":case"number":case"integer":return $p;case"vector":case"vector2":case"vector3":case"vector4":return rd;case"color":return Kp;case"quaternion":return ed;case"bool":case"boolean":return Qp;case"string":return nd}throw new Error("THREE.KeyframeTrack: Unsupported typeName: "+t)}function od(t){if(void 0===t.type)throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");const e=sd(t.type);if(void 0===t.times){const e=[],n=[];jp.flattenJSON(t.keys,e,n,"value"),t.times=e,t.values=n}return void 0!==e.parse?e.parse(t):new e(t.name,t.times,t.values,t.interpolation)}exports.AnimationClip=id;const ad={enabled:!1,files:{},add:function(t,e){!1!==this.enabled&&(this.files[t]=e)},get:function(t){if(!1!==this.enabled)return this.files[t]},remove:function(t){delete this.files[t]},clear:function(){this.files={}}};function ld(t,e,n){const r=this;let i=!1,s=0,o=0,a=void 0;const l=[];this.onStart=void 0,this.onLoad=t,this.onProgress=e,this.onError=n,this.itemStart=function(t){o++,!1===i&&void 0!==r.onStart&&r.onStart(t,s,o),i=!0},this.itemEnd=function(t){s++,void 0!==r.onProgress&&r.onProgress(t,s,o),s===o&&(i=!1,void 0!==r.onLoad&&r.onLoad())},this.itemError=function(t){void 0!==r.onError&&r.onError(t)},this.resolveURL=function(t){return a?a(t):t},this.setURLModifier=function(t){return a=t,this},this.addHandler=function(t,e){return l.push(t,e),this},this.removeHandler=function(t){const e=l.indexOf(t);return-1!==e&&l.splice(e,2),this},this.getHandler=function(t){for(let e=0,n=l.length;e<n;e+=2){const n=l[e],r=l[e+1];if(n.global&&(n.lastIndex=0),n.test(t))return r}return null}}exports.Cache=ad;const cd=new ld;function hd(t){this.manager=void 0!==t?t:cd,this.crossOrigin="anonymous",this.withCredentials=!1,this.path="",this.resourcePath="",this.requestHeader={}}exports.DefaultLoadingManager=cd,Object.assign(hd.prototype,{load:function(){},loadAsync:function(t,e){const n=this;return new Promise(function(r,i){n.load(t,r,e,i)})},parse:function(){},setCrossOrigin:function(t){return this.crossOrigin=t,this},setWithCredentials:function(t){return this.withCredentials=t,this},setPath:function(t){return this.path=t,this},setResourcePath:function(t){return this.resourcePath=t,this},setRequestHeader:function(t){return this.requestHeader=t,this}});const ud={};function pd(t){hd.call(this,t)}pd.prototype=Object.assign(Object.create(hd.prototype),{constructor:pd,load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;if(void 0!==ud[t])return void ud[t].push({onLoad:e,onProgress:n,onError:r});const o=t.match(/^data:(.*?)(;base64)?,(.*)$/);let a;if(o){const n=o[1],s=!!o[2];let a=o[3];a=decodeURIComponent(a),s&&(a=atob(a));try{let s;const o=(this.responseType||"").toLowerCase();switch(o){case"arraybuffer":case"blob":const t=new Uint8Array(a.length);for(let n=0;n<a.length;n++)t[n]=a.charCodeAt(n);s="blob"===o?new Blob([t.buffer],{type:n}):t.buffer;break;case"document":const e=new DOMParser;s=e.parseFromString(a,n);break;case"json":s=JSON.parse(a);break;default:s=a}setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0)}catch(l){setTimeout(function(){r&&r(l),i.manager.itemError(t),i.manager.itemEnd(t)},0)}}else{ud[t]=[],ud[t].push({onLoad:e,onProgress:n,onError:r}),(a=new XMLHttpRequest).open("GET",t,!0),a.addEventListener("load",function(e){const n=this.response,r=ud[t];if(delete ud[t],200===this.status||0===this.status){0===this.status&&console.warn("THREE.FileLoader: HTTP Status 0 received."),ad.add(t,n);for(let t=0,e=r.length;t<e;t++){const e=r[t];e.onLoad&&e.onLoad(n)}i.manager.itemEnd(t)}else{for(let t=0,n=r.length;t<n;t++){const n=r[t];n.onError&&n.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)}},!1),a.addEventListener("progress",function(e){const n=ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onProgress&&r.onProgress(e)}},!1),a.addEventListener("error",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),a.addEventListener("abort",function(e){const n=ud[t];delete ud[t];for(let t=0,r=n.length;t<r;t++){const r=n[t];r.onError&&r.onError(e)}i.manager.itemError(t),i.manager.itemEnd(t)},!1),void 0!==this.responseType&&(a.responseType=this.responseType),void 0!==this.withCredentials&&(a.withCredentials=this.withCredentials),a.overrideMimeType&&a.overrideMimeType(void 0!==this.mimeType?this.mimeType:"text/plain");for(const t in this.requestHeader)a.setRequestHeader(t,this.requestHeader[t]);a.send(null)}return i.manager.itemStart(t),a},setResponseType:function(t){return this.responseType=t,this},setMimeType:function(t){return this.mimeType=t,this}});class dd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=[];for(let n=0;n<t.length;n++){const r=id.parse(t[n]);e.push(r)}return e}}function md(t){hd.call(this,t)}exports.AnimationLoader=dd,md.prototype=Object.assign(Object.create(hd.prototype),{constructor:md,load:function(t,e,n,r){const i=this,s=[],o=new wu,a=new pd(this.manager);a.setPath(this.path),a.setResponseType("arraybuffer"),a.setRequestHeader(this.requestHeader),a.setWithCredentials(i.withCredentials);let l=0;function c(c){a.load(t[c],function(t){const n=i.parse(t,!0);s[c]={width:n.width,height:n.height,format:n.format,mipmaps:n.mipmaps},6===(l+=1)&&(1===n.mipmapCount&&(o.minFilter=gt),o.image=s,o.format=n.format,o.needsUpdate=!0,e&&e(o))},n,r)}if(Array.isArray(t))for(let h=0,u=t.length;h<u;++h)c(h);else a.load(t,function(t){const n=i.parse(t,!0);if(n.isCubemap){const t=n.mipmaps.length/n.mipmapCount;for(let e=0;e<t;e++){s[e]={mipmaps:[]};for(let t=0;t<n.mipmapCount;t++)s[e].mipmaps.push(n.mipmaps[e*n.mipmapCount+t]),s[e].format=n.format,s[e].width=n.width,s[e].height=n.height}o.image=s}else o.image.width=n.width,o.image.height=n.height,o.mipmaps=n.mipmaps;1===n.mipmapCount&&(o.minFilter=gt),o.format=n.format,o.needsUpdate=!0,e&&e(o)},n,r);return o}});class fd extends hd{constructor(t){super(t)}load(t,e,n,r){void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o=document.createElementNS("http://www.w3.org/1999/xhtml","img");function a(){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),ad.add(t,this),e&&e(this),i.manager.itemEnd(t)}function l(e){o.removeEventListener("load",a,!1),o.removeEventListener("error",l,!1),r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}return o.addEventListener("load",a,!1),o.addEventListener("error",l,!1),"data:"!==t.substr(0,5)&&void 0!==this.crossOrigin&&(o.crossOrigin=this.crossOrigin),i.manager.itemStart(t),o.src=t,o}}exports.ImageLoader=fd;class gd extends hd{constructor(t){super(t)}load(t,e,n,r){const i=new bs,s=new fd(this.manager);s.setCrossOrigin(this.crossOrigin),s.setPath(this.path);let o=0;function a(n){s.load(t[n],function(t){i.images[n]=t,6===++o&&(i.needsUpdate=!0,e&&e(i))},void 0,r)}for(let l=0;l<t.length;++l)a(l);return i}}function xd(t){hd.call(this,t)}function vd(t){hd.call(this,t)}function yd(){this.type="Curve",this.arcLengthDivisions=200}exports.CubeTextureLoader=gd,xd.prototype=Object.assign(Object.create(hd.prototype),{constructor:xd,load:function(t,e,n,r){const i=this,s=new Ms,o=new pd(this.manager);return o.setResponseType("arraybuffer"),o.setRequestHeader(this.requestHeader),o.setPath(this.path),o.setWithCredentials(i.withCredentials),o.load(t,function(t){const n=i.parse(t);n&&(void 0!==n.image?s.image=n.image:void 0!==n.data&&(s.image.width=n.width,s.image.height=n.height,s.image.data=n.data),s.wrapS=void 0!==n.wrapS?n.wrapS:ct,s.wrapT=void 0!==n.wrapT?n.wrapT:ct,s.magFilter=void 0!==n.magFilter?n.magFilter:gt,s.minFilter=void 0!==n.minFilter?n.minFilter:gt,s.anisotropy=void 0!==n.anisotropy?n.anisotropy:1,void 0!==n.encoding&&(s.encoding=n.encoding),void 0!==n.flipY&&(s.flipY=n.flipY),void 0!==n.format&&(s.format=n.format),void 0!==n.type&&(s.type=n.type),void 0!==n.mipmaps&&(s.mipmaps=n.mipmaps,s.minFilter=yt),1===n.mipmapCount&&(s.minFilter=gt),s.needsUpdate=!0,e&&e(s,n))},n,r),s}}),vd.prototype=Object.assign(Object.create(hd.prototype),{constructor:vd,load:function(t,e,n,r){const i=new kn,s=new fd(this.manager);return s.setCrossOrigin(this.crossOrigin),s.setPath(this.path),s.load(t,function(n){i.image=n;const r=t.search(/\.jpe?g($|\?)/i)>0||0===t.search(/^data\:image\/jpeg/);i.format=r?Bt:Nt,i.needsUpdate=!0,void 0!==e&&e(i)},n,r),i}}),Object.assign(yd.prototype,{getPoint:function(){return console.warn("THREE.Curve: .getPoint() not implemented."),null},getPointAt:function(t,e){const n=this.getUtoTmapping(t);return this.getPoint(n,e)},getPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return e},getSpacedPoints:function(t=5){const e=[];for(let n=0;n<=t;n++)e.push(this.getPointAt(n/t));return e},getLength:function(){const t=this.getLengths();return t[t.length-1]},getLengths:function(t){if(void 0===t&&(t=this.arcLengthDivisions),this.cacheArcLengths&&this.cacheArcLengths.length===t+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;const e=[];let n,r=this.getPoint(0),i=0;e.push(0);for(let s=1;s<=t;s++)i+=(n=this.getPoint(s/t)).distanceTo(r),e.push(i),r=n;return this.cacheArcLengths=e,e},updateArcLengths:function(){this.needsUpdate=!0,this.getLengths()},getUtoTmapping:function(t,e){const n=this.getLengths();let r=0;const i=n.length;let s;s=e||t*n[i-1];let o,a=0,l=i-1;for(;a<=l;)if((o=n[r=Math.floor(a+(l-a)/2)]-s)<0)a=r+1;else{if(!(o>0)){l=r;break}l=r-1}if(n[r=l]===s)return r/(i-1);const c=n[r];return(r+(s-c)/(n[r+1]-c))/(i-1)},getTangent:function(t,e){let n=t-1e-4,r=t+1e-4;n<0&&(n=0),r>1&&(r=1);const i=this.getPoint(n),s=this.getPoint(r),o=e||(i.isVector2?new On:new Yn);return o.copy(s).sub(i).normalize(),o},getTangentAt:function(t,e){const n=this.getUtoTmapping(t);return this.getTangent(n,e)},computeFrenetFrames:function(t,e){const n=new Yn,r=[],i=[],s=[],o=new Yn,a=new wr;for(let p=0;p<=t;p++){const e=p/t;r[p]=this.getTangentAt(e,new Yn),r[p].normalize()}i[0]=new Yn,s[0]=new Yn;let l=Number.MAX_VALUE;const c=Math.abs(r[0].x),h=Math.abs(r[0].y),u=Math.abs(r[0].z);c<=l&&(l=c,n.set(1,0,0)),h<=l&&(l=h,n.set(0,1,0)),u<=l&&n.set(0,0,1),o.crossVectors(r[0],n).normalize(),i[0].crossVectors(r[0],o),s[0].crossVectors(r[0],i[0]);for(let p=1;p<=t;p++){if(i[p]=i[p-1].clone(),s[p]=s[p-1].clone(),o.crossVectors(r[p-1],r[p]),o.length()>Number.EPSILON){o.normalize();const t=Math.acos(Fn.clamp(r[p-1].dot(r[p]),-1,1));i[p].applyMatrix4(a.makeRotationAxis(o,t))}s[p].crossVectors(r[p],i[p])}if(!0===e){let e=Math.acos(Fn.clamp(i[0].dot(i[t]),-1,1));e/=t,r[0].dot(o.crossVectors(i[0],i[t]))>0&&(e=-e);for(let n=1;n<=t;n++)i[n].applyMatrix4(a.makeRotationAxis(r[n],e*n)),s[n].crossVectors(r[n],i[n])}return{tangents:r,normals:i,binormals:s}},clone:function(){return(new this.constructor).copy(this)},copy:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this},toJSON:function(){const t={metadata:{version:4.5,type:"Curve",generator:"Curve.toJSON"}};return t.arcLengthDivisions=this.arcLengthDivisions,t.type=this.type,t},fromJSON:function(t){return this.arcLengthDivisions=t.arcLengthDivisions,this}});class _d extends yd{constructor(t=0,e=0,n=1,r=1,i=0,s=2*Math.PI,o=!1,a=0){super(),this.type="EllipseCurve",this.aX=t,this.aY=e,this.xRadius=n,this.yRadius=r,this.aStartAngle=i,this.aEndAngle=s,this.aClockwise=o,this.aRotation=a}getPoint(t,e){const n=e||new On,r=2*Math.PI;let i=this.aEndAngle-this.aStartAngle;const s=Math.abs(i)<Number.EPSILON;for(;i<0;)i+=r;for(;i>r;)i-=r;i<Number.EPSILON&&(i=s?0:r),!0!==this.aClockwise||s||(i===r?i=-r:i-=r);const o=this.aStartAngle+t*i;let a=this.aX+this.xRadius*Math.cos(o),l=this.aY+this.yRadius*Math.sin(o);if(0!==this.aRotation){const t=Math.cos(this.aRotation),e=Math.sin(this.aRotation),n=a-this.aX,r=l-this.aY;a=n*t-r*e+this.aX,l=n*e+r*t+this.aY}return n.set(a,l)}copy(t){return super.copy(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}toJSON(){const t=super.toJSON();return t.aX=this.aX,t.aY=this.aY,t.xRadius=this.xRadius,t.yRadius=this.yRadius,t.aStartAngle=this.aStartAngle,t.aEndAngle=this.aEndAngle,t.aClockwise=this.aClockwise,t.aRotation=this.aRotation,t}fromJSON(t){return super.fromJSON(t),this.aX=t.aX,this.aY=t.aY,this.xRadius=t.xRadius,this.yRadius=t.yRadius,this.aStartAngle=t.aStartAngle,this.aEndAngle=t.aEndAngle,this.aClockwise=t.aClockwise,this.aRotation=t.aRotation,this}}exports.EllipseCurve=_d,_d.prototype.isEllipseCurve=!0;class bd extends _d{constructor(t,e,n,r,i,s){super(t,e,n,n,r,i,s),this.type="ArcCurve"}}function wd(){let t=0,e=0,n=0,r=0;function i(i,s,o,a){t=i,e=o,n=-3*i+3*s-2*o-a,r=2*i-2*s+o+a}return{initCatmullRom:function(t,e,n,r,s){i(e,n,s*(n-t),s*(r-e))},initNonuniformCatmullRom:function(t,e,n,r,s,o,a){let l=(e-t)/s-(n-t)/(s+o)+(n-e)/o,c=(n-e)/o-(r-e)/(o+a)+(r-n)/a;i(e,n,l*=o,c*=o)},calc:function(i){const s=i*i;return t+e*i+n*s+r*(s*i)}}}exports.ArcCurve=bd,bd.prototype.isArcCurve=!0;const Md=new Yn,Sd=new wd,Td=new wd,Ed=new wd;class Ad extends yd{constructor(t=[],e=!1,n="centripetal",r=.5){super(),this.type="CatmullRomCurve3",this.points=t,this.closed=e,this.curveType=n,this.tension=r}getPoint(t,e=new Yn){const n=e,r=this.points,i=r.length,s=(i-(this.closed?0:1))*t;let o,a,l=Math.floor(s),c=s-l;this.closed?l+=l>0?0:(Math.floor(Math.abs(l)/i)+1)*i:0===c&&l===i-1&&(l=i-2,c=1),this.closed||l>0?o=r[(l-1)%i]:(Md.subVectors(r[0],r[1]).add(r[0]),o=Md);const h=r[l%i],u=r[(l+1)%i];if(this.closed||l+2<i?a=r[(l+2)%i]:(Md.subVectors(r[i-1],r[i-2]).add(r[i-1]),a=Md),"centripetal"===this.curveType||"chordal"===this.curveType){const t="chordal"===this.curveType?.5:.25;let e=Math.pow(o.distanceToSquared(h),t),n=Math.pow(h.distanceToSquared(u),t),r=Math.pow(u.distanceToSquared(a),t);n<1e-4&&(n=1),e<1e-4&&(e=n),r<1e-4&&(r=n),Sd.initNonuniformCatmullRom(o.x,h.x,u.x,a.x,e,n,r),Td.initNonuniformCatmullRom(o.y,h.y,u.y,a.y,e,n,r),Ed.initNonuniformCatmullRom(o.z,h.z,u.z,a.z,e,n,r)}else"catmullrom"===this.curveType&&(Sd.initCatmullRom(o.x,h.x,u.x,a.x,this.tension),Td.initCatmullRom(o.y,h.y,u.y,a.y,this.tension),Ed.initCatmullRom(o.z,h.z,u.z,a.z,this.tension));return n.set(Sd.calc(c),Td.calc(c),Ed.calc(c)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t.closed=this.closed,t.curveType=this.curveType,t.tension=this.tension,t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new Yn).fromArray(n))}return this.closed=t.closed,this.curveType=t.curveType,this.tension=t.tension,this}}function Ld(t,e,n,r,i){const s=.5*(r-e),o=.5*(i-n),a=t*t;return(2*n-2*r+s+o)*(t*a)+(-3*n+3*r-2*s-o)*a+s*t+n}function Rd(t,e){const n=1-t;return n*n*e}function Cd(t,e){return 2*(1-t)*t*e}function Pd(t,e){return t*t*e}function Dd(t,e,n,r){return Rd(t,e)+Cd(t,n)+Pd(t,r)}function Id(t,e){const n=1-t;return n*n*n*e}function Bd(t,e){const n=1-t;return 3*n*n*t*e}function Nd(t,e){return 3*(1-t)*t*t*e}function Fd(t,e){return t*t*t*e}function Od(t,e,n,r,i){return Id(t,e)+Bd(t,n)+Nd(t,r)+Fd(t,i)}exports.CatmullRomCurve3=Ad,Ad.prototype.isCatmullRomCurve3=!0;class zd extends yd{constructor(t=new On,e=new On,n=new On,r=new On){super(),this.type="CubicBezierCurve",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve=zd,zd.prototype.isCubicBezierCurve=!0;class Gd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn,r=new Yn){super(),this.type="CubicBezierCurve3",this.v0=t,this.v1=e,this.v2=n,this.v3=r}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2,o=this.v3;return n.set(Od(t,r.x,i.x,s.x,o.x),Od(t,r.y,i.y,s.y,o.y),Od(t,r.z,i.z,s.z,o.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this.v3.copy(t.v3),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t.v3=this.v3.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this.v3.fromArray(t.v3),this}}exports.CubicBezierCurve3=Gd,Gd.prototype.isCubicBezierCurve3=!0;class Hd extends yd{constructor(t=new On,e=new On){super(),this.type="LineCurve",this.v1=t,this.v2=e}getPoint(t,e=new On){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}getTangent(t,e){const n=e||new On;return n.copy(this.v2).sub(this.v1).normalize(),n}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve=Hd,Hd.prototype.isLineCurve=!0;class Ud extends yd{constructor(t=new Yn,e=new Yn){super(),this.type="LineCurve3",this.isLineCurve3=!0,this.v1=t,this.v2=e}getPoint(t,e=new Yn){const n=e;return 1===t?n.copy(this.v2):(n.copy(this.v2).sub(this.v1),n.multiplyScalar(t).add(this.v1)),n}getPointAt(t,e){return this.getPoint(t,e)}copy(t){return super.copy(t),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.LineCurve3=Ud;class kd extends yd{constructor(t=new On,e=new On,n=new On){super(),this.type="QuadraticBezierCurve",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new On){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve=kd,kd.prototype.isQuadraticBezierCurve=!0;class Vd extends yd{constructor(t=new Yn,e=new Yn,n=new Yn){super(),this.type="QuadraticBezierCurve3",this.v0=t,this.v1=e,this.v2=n}getPoint(t,e=new Yn){const n=e,r=this.v0,i=this.v1,s=this.v2;return n.set(Dd(t,r.x,i.x,s.x),Dd(t,r.y,i.y,s.y),Dd(t,r.z,i.z,s.z)),n}copy(t){return super.copy(t),this.v0.copy(t.v0),this.v1.copy(t.v1),this.v2.copy(t.v2),this}toJSON(){const t=super.toJSON();return t.v0=this.v0.toArray(),t.v1=this.v1.toArray(),t.v2=this.v2.toArray(),t}fromJSON(t){return super.fromJSON(t),this.v0.fromArray(t.v0),this.v1.fromArray(t.v1),this.v2.fromArray(t.v2),this}}exports.QuadraticBezierCurve3=Vd,Vd.prototype.isQuadraticBezierCurve3=!0;class Wd extends yd{constructor(t=[]){super(),this.type="SplineCurve",this.points=t}getPoint(t,e=new On){const n=e,r=this.points,i=(r.length-1)*t,s=Math.floor(i),o=i-s,a=r[0===s?s:s-1],l=r[s],c=r[s>r.length-2?r.length-1:s+1],h=r[s>r.length-3?r.length-1:s+2];return n.set(Ld(o,a.x,l.x,c.x,h.x),Ld(o,a.y,l.y,c.y,h.y)),n}copy(t){super.copy(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.points=[];for(let e=0,n=this.points.length;e<n;e++){const n=this.points[e];t.points.push(n.toArray())}return t}fromJSON(t){super.fromJSON(t),this.points=[];for(let e=0,n=t.points.length;e<n;e++){const n=t.points[e];this.points.push((new On).fromArray(n))}return this}}exports.SplineCurve=Wd,Wd.prototype.isSplineCurve=!0;var jd=Object.freeze({__proto__:null,ArcCurve:bd,CatmullRomCurve3:Ad,CubicBezierCurve:zd,CubicBezierCurve3:Gd,EllipseCurve:_d,LineCurve:Hd,LineCurve3:Ud,QuadraticBezierCurve:kd,QuadraticBezierCurve3:Vd,SplineCurve:Wd});class qd extends yd{constructor(){super(),this.type="CurvePath",this.curves=[],this.autoClose=!1}add(t){this.curves.push(t)}closePath(){const t=this.curves[0].getPoint(0),e=this.curves[this.curves.length-1].getPoint(1);t.equals(e)||this.curves.push(new Hd(e,t))}getPoint(t){const e=t*this.getLength(),n=this.getCurveLengths();let r=0;for(;r<n.length;){if(n[r]>=e){const t=n[r]-e,i=this.curves[r],s=i.getLength(),o=0===s?0:1-t/s;return i.getPointAt(o)}r++}return null}getLength(){const t=this.getCurveLengths();return t[t.length-1]}updateArcLengths(){this.needsUpdate=!0,this.cacheLengths=null,this.getCurveLengths()}getCurveLengths(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;const t=[];let e=0;for(let n=0,r=this.curves.length;n<r;n++)e+=this.curves[n].getLength(),t.push(e);return this.cacheLengths=t,t}getSpacedPoints(t=40){const e=[];for(let n=0;n<=t;n++)e.push(this.getPoint(n/t));return this.autoClose&&e.push(e[0]),e}getPoints(t=12){const e=[];let n;for(let r=0,i=this.curves;r<i.length;r++){const s=i[r],o=s&&s.isEllipseCurve?2*t:s&&(s.isLineCurve||s.isLineCurve3)?1:s&&s.isSplineCurve?t*s.points.length:t,a=s.getPoints(o);for(let t=0;t<a.length;t++){const r=a[t];n&&n.equals(r)||(e.push(r),n=r)}}return this.autoClose&&e.length>1&&!e[e.length-1].equals(e[0])&&e.push(e[0]),e}copy(t){super.copy(t),this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push(n.clone())}return this.autoClose=t.autoClose,this}toJSON(){const t=super.toJSON();t.autoClose=this.autoClose,t.curves=[];for(let e=0,n=this.curves.length;e<n;e++){const n=this.curves[e];t.curves.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.autoClose=t.autoClose,this.curves=[];for(let e=0,n=t.curves.length;e<n;e++){const n=t.curves[e];this.curves.push((new jd[n.type]).fromJSON(n))}return this}}exports.CurvePath=qd;class Xd extends qd{constructor(t){super(),this.type="Path",this.currentPoint=new On,t&&this.setFromPoints(t)}setFromPoints(t){this.moveTo(t[0].x,t[0].y);for(let e=1,n=t.length;e<n;e++)this.lineTo(t[e].x,t[e].y);return this}moveTo(t,e){return this.currentPoint.set(t,e),this}lineTo(t,e){const n=new Hd(this.currentPoint.clone(),new On(t,e));return this.curves.push(n),this.currentPoint.set(t,e),this}quadraticCurveTo(t,e,n,r){const i=new kd(this.currentPoint.clone(),new On(t,e),new On(n,r));return this.curves.push(i),this.currentPoint.set(n,r),this}bezierCurveTo(t,e,n,r,i,s){const o=new zd(this.currentPoint.clone(),new On(t,e),new On(n,r),new On(i,s));return this.curves.push(o),this.currentPoint.set(i,s),this}splineThru(t){const e=[this.currentPoint.clone()].concat(t),n=new Wd(e);return this.curves.push(n),this.currentPoint.copy(t[t.length-1]),this}arc(t,e,n,r,i,s){const o=this.currentPoint.x,a=this.currentPoint.y;return this.absarc(t+o,e+a,n,r,i,s),this}absarc(t,e,n,r,i,s){return this.absellipse(t,e,n,n,r,i,s),this}ellipse(t,e,n,r,i,s,o,a){const l=this.currentPoint.x,c=this.currentPoint.y;return this.absellipse(t+l,e+c,n,r,i,s,o,a),this}absellipse(t,e,n,r,i,s,o,a){const l=new _d(t,e,n,r,i,s,o,a);if(this.curves.length>0){const t=l.getPoint(0);t.equals(this.currentPoint)||this.lineTo(t.x,t.y)}this.curves.push(l);const c=l.getPoint(1);return this.currentPoint.copy(c),this}copy(t){return super.copy(t),this.currentPoint.copy(t.currentPoint),this}toJSON(){const t=super.toJSON();return t.currentPoint=this.currentPoint.toArray(),t}fromJSON(t){return super.fromJSON(t),this.currentPoint.fromArray(t.currentPoint),this}}exports.Path=Xd;class Yd extends Xd{constructor(t){super(t),this.uuid=Fn.generateUUID(),this.type="Shape",this.holes=[]}getPointsHoles(t){const e=[];for(let n=0,r=this.holes.length;n<r;n++)e[n]=this.holes[n].getPoints(t);return e}extractPoints(t){return{shape:this.getPoints(t),holes:this.getPointsHoles(t)}}copy(t){super.copy(t),this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push(n.clone())}return this}toJSON(){const t=super.toJSON();t.uuid=this.uuid,t.holes=[];for(let e=0,n=this.holes.length;e<n;e++){const n=this.holes[e];t.holes.push(n.toJSON())}return t}fromJSON(t){super.fromJSON(t),this.uuid=t.uuid,this.holes=[];for(let e=0,n=t.holes.length;e<n;e++){const n=t.holes[e];this.holes.push((new Xd).fromJSON(n))}return this}}exports.Shape=Yd;class Zd extends Xr{constructor(t,e=1){super(),this.type="Light",this.color=new xi(t),this.intensity=e}copy(t){return super.copy(t),this.color.copy(t.color),this.intensity=t.intensity,this}toJSON(t){const e=super.toJSON(t);return e.object.color=this.color.getHex(),e.object.intensity=this.intensity,void 0!==this.groundColor&&(e.object.groundColor=this.groundColor.getHex()),void 0!==this.distance&&(e.object.distance=this.distance),void 0!==this.angle&&(e.object.angle=this.angle),void 0!==this.decay&&(e.object.decay=this.decay),void 0!==this.penumbra&&(e.object.penumbra=this.penumbra),void 0!==this.shadow&&(e.object.shadow=this.shadow.toJSON()),e}}exports.Light=Zd,Zd.prototype.isLight=!0;class Jd extends Zd{constructor(t,e,n){super(t,n),this.type="HemisphereLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.groundColor=new xi(e)}copy(t){return Zd.prototype.copy.call(this,t),this.groundColor.copy(t.groundColor),this}}exports.HemisphereLight=Jd,Jd.prototype.isHemisphereLight=!0;const Qd=new wr,Kd=new Yn,$d=new Yn;class tm{constructor(t){this.camera=t,this.bias=0,this.normalBias=0,this.radius=1,this.mapSize=new On(512,512),this.map=null,this.mapPass=null,this.matrix=new wr,this.autoUpdate=!0,this.needsUpdate=!1,this._frustum=new Es,this._frameExtents=new On(1,1),this._viewportCount=1,this._viewports=[new Wn(0,0,1,1)]}getViewportCount(){return this._viewportCount}getFrustum(){return this._frustum}updateMatrices(t){const e=this.camera,n=this.matrix;Kd.setFromMatrixPosition(t.matrixWorld),e.position.copy(Kd),$d.setFromMatrixPosition(t.target.matrixWorld),e.lookAt($d),e.updateMatrixWorld(),Qd.multiplyMatrices(e.projectionMatrix,e.matrixWorldInverse),this._frustum.setFromProjectionMatrix(Qd),n.set(.5,0,0,.5,0,.5,0,.5,0,0,.5,.5,0,0,0,1),n.multiply(e.projectionMatrix),n.multiply(e.matrixWorldInverse)}getViewport(t){return this._viewports[t]}getFrameExtents(){return this._frameExtents}copy(t){return this.camera=t.camera.clone(),this.bias=t.bias,this.radius=t.radius,this.mapSize.copy(t.mapSize),this}clone(){return(new this.constructor).copy(this)}toJSON(){const t={};return 0!==this.bias&&(t.bias=this.bias),0!==this.normalBias&&(t.normalBias=this.normalBias),1!==this.radius&&(t.radius=this.radius),512===this.mapSize.x&&512===this.mapSize.y||(t.mapSize=this.mapSize.toArray()),t.camera=this.camera.toJSON(!1).object,delete t.camera.matrix,t}}class em extends tm{constructor(){super(new xs(50,1,.5,500)),this.focus=1}updateMatrices(t){const e=this.camera,n=2*Fn.RAD2DEG*t.angle*this.focus,r=this.mapSize.width/this.mapSize.height,i=t.distance||e.far;n===e.fov&&r===e.aspect&&i===e.far||(e.fov=n,e.aspect=r,e.far=i,e.updateProjectionMatrix()),super.updateMatrices(t)}}em.prototype.isSpotLightShadow=!0;class nm extends Zd{constructor(t,e,n=0,r=Math.PI/3,i=0,s=1){super(t,e),this.type="SpotLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.distance=n,this.angle=r,this.penumbra=i,this.decay=s,this.shadow=new em}get power(){return this.intensity*Math.PI}set power(t){this.intensity=t/Math.PI}copy(t){return super.copy(t),this.distance=t.distance,this.angle=t.angle,this.penumbra=t.penumbra,this.decay=t.decay,this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.SpotLight=nm,nm.prototype.isSpotLight=!0;const rm=new wr,im=new Yn,sm=new Yn;class om extends tm{constructor(){super(new xs(90,1,.5,500)),this._frameExtents=new On(4,2),this._viewportCount=6,this._viewports=[new Wn(2,1,1,1),new Wn(0,1,1,1),new Wn(3,1,1,1),new Wn(1,1,1,1),new Wn(3,0,1,1),new Wn(1,0,1,1)],this._cubeDirections=[new Yn(1,0,0),new Yn(-1,0,0),new Yn(0,0,1),new Yn(0,0,-1),new Yn(0,1,0),new Yn(0,-1,0)],this._cubeUps=[new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,1,0),new Yn(0,0,1),new Yn(0,0,-1)]}updateMatrices(t,e=0){const n=this.camera,r=this.matrix;im.setFromMatrixPosition(t.matrixWorld),n.position.copy(im),sm.copy(n.position),sm.add(this._cubeDirections[e]),n.up.copy(this._cubeUps[e]),n.lookAt(sm),n.updateMatrixWorld(),r.makeTranslation(-im.x,-im.y,-im.z),rm.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),this._frustum.setFromProjectionMatrix(rm)}}om.prototype.isPointLightShadow=!0;class am extends Zd{constructor(t,e,n=0,r=1){super(t,e),this.type="PointLight",this.distance=n,this.decay=r,this.shadow=new om}get power(){return 4*this.intensity*Math.PI}set power(t){this.intensity=t/(4*Math.PI)}copy(t){return super.copy(t),this.distance=t.distance,this.decay=t.decay,this.shadow=t.shadow.clone(),this}}exports.PointLight=am,am.prototype.isPointLight=!0;class lm extends gs{constructor(t=-1,e=1,n=1,r=-1,i=.1,s=2e3){super(),this.type="OrthographicCamera",this.zoom=1,this.view=null,this.left=t,this.right=e,this.top=n,this.bottom=r,this.near=i,this.far=s,this.updateProjectionMatrix()}copy(t,e){return super.copy(t,e),this.left=t.left,this.right=t.right,this.top=t.top,this.bottom=t.bottom,this.near=t.near,this.far=t.far,this.zoom=t.zoom,this.view=null===t.view?null:Object.assign({},t.view),this}setViewOffset(t,e,n,r,i,s){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1}),this.view.enabled=!0,this.view.fullWidth=t,this.view.fullHeight=e,this.view.offsetX=n,this.view.offsetY=r,this.view.width=i,this.view.height=s,this.updateProjectionMatrix()}clearViewOffset(){null!==this.view&&(this.view.enabled=!1),this.updateProjectionMatrix()}updateProjectionMatrix(){const t=(this.right-this.left)/(2*this.zoom),e=(this.top-this.bottom)/(2*this.zoom),n=(this.right+this.left)/2,r=(this.top+this.bottom)/2;let i=n-t,s=n+t,o=r+e,a=r-e;if(null!==this.view&&this.view.enabled){const t=(this.right-this.left)/this.view.fullWidth/this.zoom,e=(this.top-this.bottom)/this.view.fullHeight/this.zoom;s=(i+=t*this.view.offsetX)+t*this.view.width,a=(o-=e*this.view.offsetY)-e*this.view.height}this.projectionMatrix.makeOrthographic(i,s,o,a,this.near,this.far),this.projectionMatrixInverse.copy(this.projectionMatrix).invert()}toJSON(t){const e=Xr.prototype.toJSON.call(this,t);return e.object.zoom=this.zoom,e.object.left=this.left,e.object.right=this.right,e.object.top=this.top,e.object.bottom=this.bottom,e.object.near=this.near,e.object.far=this.far,null!==this.view&&(e.object.view=Object.assign({},this.view)),e}}exports.OrthographicCamera=lm,lm.prototype.isOrthographicCamera=!0;class cm extends tm{constructor(){super(new lm(-5,5,5,-5,.5,500))}}cm.prototype.isDirectionalLightShadow=!0;class hm extends Zd{constructor(t,e){super(t,e),this.type="DirectionalLight",this.position.copy(Xr.DefaultUp),this.updateMatrix(),this.target=new Xr,this.shadow=new cm}copy(t){return super.copy(t),this.target=t.target.clone(),this.shadow=t.shadow.clone(),this}}exports.DirectionalLight=hm,hm.prototype.isDirectionalLight=!0;class um extends Zd{constructor(t,e){super(t,e),this.type="AmbientLight"}}exports.AmbientLight=um,um.prototype.isAmbientLight=!0;class pm extends Zd{constructor(t,e,n=10,r=10){super(t,e),this.type="RectAreaLight",this.width=n,this.height=r}copy(t){return super.copy(t),this.width=t.width,this.height=t.height,this}toJSON(t){const e=super.toJSON(t);return e.object.width=this.width,e.object.height=this.height,e}}exports.RectAreaLight=pm,pm.prototype.isRectAreaLight=!0;class dm{constructor(){this.coefficients=[];for(let t=0;t<9;t++)this.coefficients.push(new Yn)}set(t){for(let e=0;e<9;e++)this.coefficients[e].copy(t[e]);return this}zero(){for(let t=0;t<9;t++)this.coefficients[t].set(0,0,0);return this}getAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.282095),e.addScaledVector(s[1],.488603*r),e.addScaledVector(s[2],.488603*i),e.addScaledVector(s[3],.488603*n),e.addScaledVector(s[4],n*r*1.092548),e.addScaledVector(s[5],r*i*1.092548),e.addScaledVector(s[6],.315392*(3*i*i-1)),e.addScaledVector(s[7],n*i*1.092548),e.addScaledVector(s[8],.546274*(n*n-r*r)),e}getIrradianceAt(t,e){const n=t.x,r=t.y,i=t.z,s=this.coefficients;return e.copy(s[0]).multiplyScalar(.886227),e.addScaledVector(s[1],1.023328*r),e.addScaledVector(s[2],1.023328*i),e.addScaledVector(s[3],1.023328*n),e.addScaledVector(s[4],.858086*n*r),e.addScaledVector(s[5],.858086*r*i),e.addScaledVector(s[6],.743125*i*i-.247708),e.addScaledVector(s[7],.858086*n*i),e.addScaledVector(s[8],.429043*(n*n-r*r)),e}add(t){for(let e=0;e<9;e++)this.coefficients[e].add(t.coefficients[e]);return this}addScaledSH(t,e){for(let n=0;n<9;n++)this.coefficients[n].addScaledVector(t.coefficients[n],e);return this}scale(t){for(let e=0;e<9;e++)this.coefficients[e].multiplyScalar(t);return this}lerp(t,e){for(let n=0;n<9;n++)this.coefficients[n].lerp(t.coefficients[n],e);return this}equals(t){for(let e=0;e<9;e++)if(!this.coefficients[e].equals(t.coefficients[e]))return!1;return!0}copy(t){return this.set(t.coefficients)}clone(){return(new this.constructor).copy(this)}fromArray(t,e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].fromArray(t,e+3*r);return this}toArray(t=[],e=0){const n=this.coefficients;for(let r=0;r<9;r++)n[r].toArray(t,e+3*r);return t}static getBasisAt(t,e){const n=t.x,r=t.y,i=t.z;e[0]=.282095,e[1]=.488603*r,e[2]=.488603*i,e[3]=.488603*n,e[4]=1.092548*n*r,e[5]=1.092548*r*i,e[6]=.315392*(3*i*i-1),e[7]=1.092548*n*i,e[8]=.546274*(n*n-r*r)}}exports.SphericalHarmonics3=dm,dm.prototype.isSphericalHarmonics3=!0;class mm extends Zd{constructor(t=new dm,e=1){super(void 0,e),this.sh=t}copy(t){return super.copy(t),this.sh.copy(t.sh),this}fromJSON(t){return this.intensity=t.intensity,this.sh.fromArray(t.sh),this}toJSON(t){const e=super.toJSON(t);return e.object.sh=this.sh.toArray(),e}}exports.LightProbe=mm,mm.prototype.isLightProbe=!0;class fm extends hd{constructor(t){super(t),this.textures={}}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e=this.textures;function n(t){return void 0===e[t]&&console.warn("THREE.MaterialLoader: Undefined texture",t),e[t]}const r=new Wp[t.type];if(void 0!==t.uuid&&(r.uuid=t.uuid),void 0!==t.name&&(r.name=t.name),void 0!==t.color&&void 0!==r.color&&r.color.setHex(t.color),void 0!==t.roughness&&(r.roughness=t.roughness),void 0!==t.metalness&&(r.metalness=t.metalness),void 0!==t.sheen&&(r.sheen=(new xi).setHex(t.sheen)),void 0!==t.emissive&&void 0!==r.emissive&&r.emissive.setHex(t.emissive),void 0!==t.specular&&void 0!==r.specular&&r.specular.setHex(t.specular),void 0!==t.shininess&&(r.shininess=t.shininess),void 0!==t.clearcoat&&(r.clearcoat=t.clearcoat),void 0!==t.clearcoatRoughness&&(r.clearcoatRoughness=t.clearcoatRoughness),void 0!==t.fog&&(r.fog=t.fog),void 0!==t.flatShading&&(r.flatShading=t.flatShading),void 0!==t.blending&&(r.blending=t.blending),void 0!==t.combine&&(r.combine=t.combine),void 0!==t.side&&(r.side=t.side),void 0!==t.opacity&&(r.opacity=t.opacity),void 0!==t.transparent&&(r.transparent=t.transparent),void 0!==t.alphaTest&&(r.alphaTest=t.alphaTest),void 0!==t.depthTest&&(r.depthTest=t.depthTest),void 0!==t.depthWrite&&(r.depthWrite=t.depthWrite),void 0!==t.colorWrite&&(r.colorWrite=t.colorWrite),void 0!==t.stencilWrite&&(r.stencilWrite=t.stencilWrite),void 0!==t.stencilWriteMask&&(r.stencilWriteMask=t.stencilWriteMask),void 0!==t.stencilFunc&&(r.stencilFunc=t.stencilFunc),void 0!==t.stencilRef&&(r.stencilRef=t.stencilRef),void 0!==t.stencilFuncMask&&(r.stencilFuncMask=t.stencilFuncMask),void 0!==t.stencilFail&&(r.stencilFail=t.stencilFail),void 0!==t.stencilZFail&&(r.stencilZFail=t.stencilZFail),void 0!==t.stencilZPass&&(r.stencilZPass=t.stencilZPass),void 0!==t.wireframe&&(r.wireframe=t.wireframe),void 0!==t.wireframeLinewidth&&(r.wireframeLinewidth=t.wireframeLinewidth),void 0!==t.wireframeLinecap&&(r.wireframeLinecap=t.wireframeLinecap),void 0!==t.wireframeLinejoin&&(r.wireframeLinejoin=t.wireframeLinejoin),void 0!==t.rotation&&(r.rotation=t.rotation),1!==t.linewidth&&(r.linewidth=t.linewidth),void 0!==t.dashSize&&(r.dashSize=t.dashSize),void 0!==t.gapSize&&(r.gapSize=t.gapSize),void 0!==t.scale&&(r.scale=t.scale),void 0!==t.polygonOffset&&(r.polygonOffset=t.polygonOffset),void 0!==t.polygonOffsetFactor&&(r.polygonOffsetFactor=t.polygonOffsetFactor),void 0!==t.polygonOffsetUnits&&(r.polygonOffsetUnits=t.polygonOffsetUnits),void 0!==t.skinning&&(r.skinning=t.skinning),void 0!==t.morphTargets&&(r.morphTargets=t.morphTargets),void 0!==t.morphNormals&&(r.morphNormals=t.morphNormals),void 0!==t.dithering&&(r.dithering=t.dithering),void 0!==t.vertexTangents&&(r.vertexTangents=t.vertexTangents),void 0!==t.visible&&(r.visible=t.visible),void 0!==t.toneMapped&&(r.toneMapped=t.toneMapped),void 0!==t.userData&&(r.userData=t.userData),void 0!==t.vertexColors&&("number"==typeof t.vertexColors?r.vertexColors=t.vertexColors>0:r.vertexColors=t.vertexColors),void 0!==t.uniforms)for(const i in t.uniforms){const e=t.uniforms[i];switch(r.uniforms[i]={},e.type){case"t":r.uniforms[i].value=n(e.value);break;case"c":r.uniforms[i].value=(new xi).setHex(e.value);break;case"v2":r.uniforms[i].value=(new On).fromArray(e.value);break;case"v3":r.uniforms[i].value=(new Yn).fromArray(e.value);break;case"v4":r.uniforms[i].value=(new Wn).fromArray(e.value);break;case"m3":r.uniforms[i].value=(new zn).fromArray(e.value);break;case"m4":r.uniforms[i].value=(new wr).fromArray(e.value);break;default:r.uniforms[i].value=e.value}}if(void 0!==t.defines&&(r.defines=t.defines),void 0!==t.vertexShader&&(r.vertexShader=t.vertexShader),void 0!==t.fragmentShader&&(r.fragmentShader=t.fragmentShader),void 0!==t.extensions)for(const i in t.extensions)r.extensions[i]=t.extensions[i];if(void 0!==t.shading&&(r.flatShading=1===t.shading),void 0!==t.size&&(r.size=t.size),void 0!==t.sizeAttenuation&&(r.sizeAttenuation=t.sizeAttenuation),void 0!==t.map&&(r.map=n(t.map)),void 0!==t.matcap&&(r.matcap=n(t.matcap)),void 0!==t.alphaMap&&(r.alphaMap=n(t.alphaMap)),void 0!==t.bumpMap&&(r.bumpMap=n(t.bumpMap)),void 0!==t.bumpScale&&(r.bumpScale=t.bumpScale),void 0!==t.normalMap&&(r.normalMap=n(t.normalMap)),void 0!==t.normalMapType&&(r.normalMapType=t.normalMapType),void 0!==t.normalScale){let e=t.normalScale;!1===Array.isArray(e)&&(e=[e,e]),r.normalScale=(new On).fromArray(e)}return void 0!==t.displacementMap&&(r.displacementMap=n(t.displacementMap)),void 0!==t.displacementScale&&(r.displacementScale=t.displacementScale),void 0!==t.displacementBias&&(r.displacementBias=t.displacementBias),void 0!==t.roughnessMap&&(r.roughnessMap=n(t.roughnessMap)),void 0!==t.metalnessMap&&(r.metalnessMap=n(t.metalnessMap)),void 0!==t.emissiveMap&&(r.emissiveMap=n(t.emissiveMap)),void 0!==t.emissiveIntensity&&(r.emissiveIntensity=t.emissiveIntensity),void 0!==t.specularMap&&(r.specularMap=n(t.specularMap)),void 0!==t.envMap&&(r.envMap=n(t.envMap)),void 0!==t.envMapIntensity&&(r.envMapIntensity=t.envMapIntensity),void 0!==t.reflectivity&&(r.reflectivity=t.reflectivity),void 0!==t.refractionRatio&&(r.refractionRatio=t.refractionRatio),void 0!==t.lightMap&&(r.lightMap=n(t.lightMap)),void 0!==t.lightMapIntensity&&(r.lightMapIntensity=t.lightMapIntensity),void 0!==t.aoMap&&(r.aoMap=n(t.aoMap)),void 0!==t.aoMapIntensity&&(r.aoMapIntensity=t.aoMapIntensity),void 0!==t.gradientMap&&(r.gradientMap=n(t.gradientMap)),void 0!==t.clearcoatMap&&(r.clearcoatMap=n(t.clearcoatMap)),void 0!==t.clearcoatRoughnessMap&&(r.clearcoatRoughnessMap=n(t.clearcoatRoughnessMap)),void 0!==t.clearcoatNormalMap&&(r.clearcoatNormalMap=n(t.clearcoatNormalMap)),void 0!==t.clearcoatNormalScale&&(r.clearcoatNormalScale=(new On).fromArray(t.clearcoatNormalScale)),void 0!==t.transmission&&(r.transmission=t.transmission),void 0!==t.transmissionMap&&(r.transmissionMap=n(t.transmissionMap)),r}setTextures(t){return this.textures=t,this}}exports.MaterialLoader=fm;const gm={decodeText:function(t){if("undefined"!=typeof TextDecoder)return(new TextDecoder).decode(t);let e="";for(let r=0,i=t.length;r<i;r++)e+=String.fromCharCode(t[r]);try{return decodeURIComponent(escape(e))}catch(n){return e}},extractUrlBase:function(t){const e=t.lastIndexOf("/");return-1===e?"./":t.substr(0,e+1)}};function xm(){ki.call(this),this.type="InstancedBufferGeometry",this.instanceCount=1/0}function vm(t,e,n,r){"number"==typeof n&&(r=n,n=!1,console.error("THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.")),bi.call(this,t,e,n),this.meshPerAttribute=r||1}exports.LoaderUtils=gm,xm.prototype=Object.assign(Object.create(ki.prototype),{constructor:xm,isInstancedBufferGeometry:!0,copy:function(t){return ki.prototype.copy.call(this,t),this.instanceCount=t.instanceCount,this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){const t=ki.prototype.toJSON.call(this);return t.instanceCount=this.instanceCount,t.isInstancedBufferGeometry=!0,t}}),vm.prototype=Object.assign(Object.create(bi.prototype),{constructor:vm,isInstancedBufferAttribute:!0,copy:function(t){return bi.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},toJSON:function(){const t=bi.prototype.toJSON.call(this);return t.meshPerAttribute=this.meshPerAttribute,t.isInstancedBufferAttribute=!0,t}});class ym extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(i.manager);s.setPath(i.path),s.setRequestHeader(i.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(n){try{e(i.parse(JSON.parse(n)))}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}parse(t){const e={},n={};function r(t,r){if(void 0!==e[r])return e[r];const i=t.interleavedBuffers[r],s=function(t,e){if(void 0!==n[e])return n[e];const r=t.arrayBuffers[e],i=new Uint32Array(r).buffer;return n[e]=i,i}(t,i.buffer),o=new _h(Bi(i.type,s),i.stride);return o.uuid=i.uuid,e[r]=o,o}const i=t.isInstancedBufferGeometry?new xm:new ki,s=t.data.index;if(void 0!==s){const t=Bi(s.type,s.array);i.setIndex(new bi(t,1))}const o=t.data.attributes;for(const h in o){const e=o[h];let n;if(e.isInterleavedBufferAttribute){n=new wh(r(t.data,e.data),e.itemSize,e.offset,e.normalized)}else{const t=Bi(e.type,e.array);n=new(e.isInstancedBufferAttribute?vm:bi)(t,e.itemSize,e.normalized)}void 0!==e.name&&(n.name=e.name),i.setAttribute(h,n)}const a=t.data.morphAttributes;if(a)for(const h in a){const e=a[h],n=[];for(let i=0,s=e.length;i<s;i++){const s=e[i];let o;if(s.isInterleavedBufferAttribute){o=new wh(r(t.data,s.data),s.itemSize,s.offset,s.normalized)}else{o=new bi(Bi(s.type,s.array),s.itemSize,s.normalized)}void 0!==s.name&&(o.name=s.name),n.push(o)}i.morphAttributes[h]=n}t.data.morphTargetsRelative&&(i.morphTargetsRelative=!0);const l=t.data.groups||t.data.drawcalls||t.data.offsets;if(void 0!==l)for(let h=0,u=l.length;h!==u;++h){const t=l[h];i.addGroup(t.start,t.count,t.materialIndex)}const c=t.data.boundingSphere;if(void 0!==c){const t=new Yn;void 0!==c.center&&t.fromArray(c.center),i.boundingSphere=new dr(t,c.radius)}return t.name&&(i.name=t.name),t.userData&&(i.userData=t.userData),i}}exports.BufferGeometryLoader=ym;class _m extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=""===this.path?gm.extractUrlBase(t):this.path;this.resourcePath=this.resourcePath||s;const o=new pd(this.manager);o.setPath(this.path),o.setRequestHeader(this.requestHeader),o.setWithCredentials(this.withCredentials),o.load(t,function(n){let s=null;try{s=JSON.parse(n)}catch(a){return void 0!==r&&r(a),void console.error("THREE:ObjectLoader: Can't parse "+t+".",a.message)}const o=s.metadata;void 0!==o&&void 0!==o.type&&"geometry"!==o.type.toLowerCase()?i.parse(s,e):console.error("THREE.ObjectLoader: Can't load "+t)},n,r)}parse(t,e){const n=this.parseAnimations(t.animations),r=this.parseShapes(t.shapes),i=this.parseGeometries(t.geometries,r),s=this.parseImages(t.images,function(){void 0!==e&&e(l)}),o=this.parseTextures(t.textures,s),a=this.parseMaterials(t.materials,o),l=this.parseObject(t.object,i,a,n),c=this.parseSkeletons(t.skeletons,l);if(this.bindSkeletons(l,c),void 0!==e){let t=!1;for(const e in s)if(s[e]instanceof HTMLImageElement){t=!0;break}!1===t&&e(l)}return l}parseShapes(t){const e={};if(void 0!==t)for(let n=0,r=t.length;n<r;n++){const r=(new Yd).fromJSON(t[n]);e[r.uuid]=r}return e}parseSkeletons(t,e){const n={},r={};if(e.traverse(function(t){t.isBone&&(r[t.uuid]=t)}),void 0!==t)for(let i=0,s=t.length;i<s;i++){const e=(new Qh).fromJSON(t[i],r);n[e.uuid]=e}return n}parseGeometries(t,e){const n={};let r;if(void 0!==t){const i=new ym;for(let s=0,o=t.length;s<o;s++){let o;const a=t[s];switch(a.type){case"PlaneGeometry":case"PlaneBufferGeometry":o=new Ip[a.type](a.width,a.height,a.widthSegments,a.heightSegments);break;case"BoxGeometry":case"BoxBufferGeometry":o=new Ip[a.type](a.width,a.height,a.depth,a.widthSegments,a.heightSegments,a.depthSegments);break;case"CircleGeometry":case"CircleBufferGeometry":o=new Ip[a.type](a.radius,a.segments,a.thetaStart,a.thetaLength);break;case"CylinderGeometry":case"CylinderBufferGeometry":o=new Ip[a.type](a.radiusTop,a.radiusBottom,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"ConeGeometry":case"ConeBufferGeometry":o=new Ip[a.type](a.radius,a.height,a.radialSegments,a.heightSegments,a.openEnded,a.thetaStart,a.thetaLength);break;case"SphereGeometry":case"SphereBufferGeometry":o=new Ip[a.type](a.radius,a.widthSegments,a.heightSegments,a.phiStart,a.phiLength,a.thetaStart,a.thetaLength);break;case"DodecahedronGeometry":case"DodecahedronBufferGeometry":case"IcosahedronGeometry":case"IcosahedronBufferGeometry":case"OctahedronGeometry":case"OctahedronBufferGeometry":case"TetrahedronGeometry":case"TetrahedronBufferGeometry":o=new Ip[a.type](a.radius,a.detail);break;case"RingGeometry":case"RingBufferGeometry":o=new Ip[a.type](a.innerRadius,a.outerRadius,a.thetaSegments,a.phiSegments,a.thetaStart,a.thetaLength);break;case"TorusGeometry":case"TorusBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.radialSegments,a.tubularSegments,a.arc);break;case"TorusKnotGeometry":case"TorusKnotBufferGeometry":o=new Ip[a.type](a.radius,a.tube,a.tubularSegments,a.radialSegments,a.p,a.q);break;case"TubeGeometry":case"TubeBufferGeometry":o=new Ip[a.type]((new jd[a.path.type]).fromJSON(a.path),a.tubularSegments,a.radius,a.radialSegments,a.closed);break;case"LatheGeometry":case"LatheBufferGeometry":o=new Ip[a.type](a.points,a.segments,a.phiStart,a.phiLength);break;case"PolyhedronGeometry":case"PolyhedronBufferGeometry":o=new Ip[a.type](a.vertices,a.indices,a.radius,a.details);break;case"ShapeGeometry":case"ShapeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}o=new Ip[a.type](r,a.curveSegments);break;case"ExtrudeGeometry":case"ExtrudeBufferGeometry":r=[];for(let n=0,i=a.shapes.length;n<i;n++){const t=e[a.shapes[n]];r.push(t)}const t=a.options.extrudePath;void 0!==t&&(a.options.extrudePath=(new jd[t.type]).fromJSON(t)),o=new Ip[a.type](r,a.options);break;case"BufferGeometry":case"InstancedBufferGeometry":o=i.parse(a);break;case"Geometry":console.error('THREE.ObjectLoader: Loading "Geometry" is not supported anymore.');break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type "'+a.type+'"');continue}o.uuid=a.uuid,void 0!==a.name&&(o.name=a.name),!0===o.isBufferGeometry&&void 0!==a.userData&&(o.userData=a.userData),n[a.uuid]=o}}return n}parseMaterials(t,e){const n={},r={};if(void 0!==t){const i=new fm;i.setTextures(e);for(let e=0,s=t.length;e<s;e++){const s=t[e];if("MultiMaterial"===s.type){const t=[];for(let e=0;e<s.materials.length;e++){const r=s.materials[e];void 0===n[r.uuid]&&(n[r.uuid]=i.parse(r)),t.push(n[r.uuid])}r[s.uuid]=t}else void 0===n[s.uuid]&&(n[s.uuid]=i.parse(s)),r[s.uuid]=n[s.uuid]}}return r}parseAnimations(t){const e={};if(void 0!==t)for(let n=0;n<t.length;n++){const r=t[n],i=id.parse(r);e[i.uuid]=i}return e}parseImages(t,e){const n=this,r={};let i;function s(t){if("string"==typeof t){const e=t;return function(t){return n.manager.itemStart(t),i.load(t,function(){n.manager.itemEnd(t)},void 0,function(){n.manager.itemError(t),n.manager.itemEnd(t)})}(/^(\/\/)|([a-z]+:(\/\/)?)/i.test(e)?e:n.resourcePath+e)}return t.data?{data:Bi(t.type,t.data),width:t.width,height:t.height}:null}if(void 0!==t&&t.length>0){const n=new ld(e);(i=new fd(n)).setCrossOrigin(this.crossOrigin);for(let e=0,i=t.length;e<i;e++){const n=t[e],i=n.url;if(Array.isArray(i)){r[n.uuid]=[];for(let t=0,e=i.length;t<e;t++){const e=s(i[t]);null!==e&&(e instanceof HTMLImageElement?r[n.uuid].push(e):r[n.uuid].push(new Ms(e.data,e.width,e.height)))}}else{const t=s(n.url);null!==t&&(r[n.uuid]=t)}}}return r}parseTextures(t,e){function n(t,e){return"number"==typeof t?t:(console.warn("THREE.ObjectLoader.parseTexture: Constant should be in numeric form.",t),e[t])}const r={};if(void 0!==t)for(let i=0,s=t.length;i<s;i++){const s=t[i];let o;void 0===s.image&&console.warn('THREE.ObjectLoader: No "image" specified for',s.uuid),void 0===e[s.image]&&console.warn("THREE.ObjectLoader: Undefined image",s.image);const a=e[s.image];Array.isArray(a)?(o=new bs(a),6===a.length&&(o.needsUpdate=!0)):(o=a&&a.data?new Ms(a.data,a.width,a.height):new kn(a),a&&(o.needsUpdate=!0)),o.uuid=s.uuid,void 0!==s.name&&(o.name=s.name),void 0!==s.mapping&&(o.mapping=n(s.mapping,bm)),void 0!==s.offset&&o.offset.fromArray(s.offset),void 0!==s.repeat&&o.repeat.fromArray(s.repeat),void 0!==s.center&&o.center.fromArray(s.center),void 0!==s.rotation&&(o.rotation=s.rotation),void 0!==s.wrap&&(o.wrapS=n(s.wrap[0],wm),o.wrapT=n(s.wrap[1],wm)),void 0!==s.format&&(o.format=s.format),void 0!==s.type&&(o.type=s.type),void 0!==s.encoding&&(o.encoding=s.encoding),void 0!==s.minFilter&&(o.minFilter=n(s.minFilter,Mm)),void 0!==s.magFilter&&(o.magFilter=n(s.magFilter,Mm)),void 0!==s.anisotropy&&(o.anisotropy=s.anisotropy),void 0!==s.flipY&&(o.flipY=s.flipY),void 0!==s.premultiplyAlpha&&(o.premultiplyAlpha=s.premultiplyAlpha),void 0!==s.unpackAlignment&&(o.unpackAlignment=s.unpackAlignment),r[s.uuid]=o}return r}parseObject(t,e,n,r){let i,s,o;function a(t){return void 0===e[t]&&console.warn("THREE.ObjectLoader: Undefined geometry",t),e[t]}function l(t){if(void 0!==t){if(Array.isArray(t)){const e=[];for(let r=0,i=t.length;r<i;r++){const i=t[r];void 0===n[i]&&console.warn("THREE.ObjectLoader: Undefined material",i),e.push(n[i])}return e}return void 0===n[t]&&console.warn("THREE.ObjectLoader: Undefined material",t),n[t]}}switch(t.type){case"Scene":i=new yh,void 0!==t.background&&Number.isInteger(t.background)&&(i.background=new xi(t.background)),void 0!==t.fog&&("Fog"===t.fog.type?i.fog=new vh(t.fog.color,t.fog.near,t.fog.far):"FogExp2"===t.fog.type&&(i.fog=new xh(t.fog.color,t.fog.density)));break;case"PerspectiveCamera":i=new xs(t.fov,t.aspect,t.near,t.far),void 0!==t.focus&&(i.focus=t.focus),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.filmGauge&&(i.filmGauge=t.filmGauge),void 0!==t.filmOffset&&(i.filmOffset=t.filmOffset),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"OrthographicCamera":i=new lm(t.left,t.right,t.top,t.bottom,t.near,t.far),void 0!==t.zoom&&(i.zoom=t.zoom),void 0!==t.view&&(i.view=Object.assign({},t.view));break;case"AmbientLight":i=new um(t.color,t.intensity);break;case"DirectionalLight":i=new hm(t.color,t.intensity);break;case"PointLight":i=new am(t.color,t.intensity,t.distance,t.decay);break;case"RectAreaLight":i=new pm(t.color,t.intensity,t.width,t.height);break;case"SpotLight":i=new nm(t.color,t.intensity,t.distance,t.angle,t.penumbra,t.decay);break;case"HemisphereLight":i=new Jd(t.color,t.groundColor,t.intensity);break;case"LightProbe":i=(new mm).fromJSON(t);break;case"SkinnedMesh":i=new Xh(s=a(t.geometry),o=l(t.material)),void 0!==t.bindMode&&(i.bindMode=t.bindMode),void 0!==t.bindMatrix&&i.bindMatrix.fromArray(t.bindMatrix),void 0!==t.skeleton&&(i.skeleton=t.skeleton);break;case"Mesh":i=new os(s=a(t.geometry),o=l(t.material));break;case"InstancedMesh":s=a(t.geometry),o=l(t.material);const e=t.count,n=t.instanceMatrix;(i=new nu(s,o,e)).instanceMatrix=new bi(new Float32Array(n.array),16);break;case"LOD":i=new Uh;break;case"Line":i=new cu(a(t.geometry),l(t.material));break;case"LineLoop":i=new du(a(t.geometry),l(t.material));break;case"LineSegments":i=new pu(a(t.geometry),l(t.material));break;case"PointCloud":case"Points":i=new yu(a(t.geometry),l(t.material));break;case"Sprite":i=new Oh(l(t.material));break;case"Group":i=new hh;break;case"Bone":i=new Yh;break;default:i=new Xr}if(i.uuid=t.uuid,void 0!==t.name&&(i.name=t.name),void 0!==t.matrix?(i.matrix.fromArray(t.matrix),void 0!==t.matrixAutoUpdate&&(i.matrixAutoUpdate=t.matrixAutoUpdate),i.matrixAutoUpdate&&i.matrix.decompose(i.position,i.quaternion,i.scale)):(void 0!==t.position&&i.position.fromArray(t.position),void 0!==t.rotation&&i.rotation.fromArray(t.rotation),void 0!==t.quaternion&&i.quaternion.fromArray(t.quaternion),void 0!==t.scale&&i.scale.fromArray(t.scale)),void 0!==t.castShadow&&(i.castShadow=t.castShadow),void 0!==t.receiveShadow&&(i.receiveShadow=t.receiveShadow),t.shadow&&(void 0!==t.shadow.bias&&(i.shadow.bias=t.shadow.bias),void 0!==t.shadow.normalBias&&(i.shadow.normalBias=t.shadow.normalBias),void 0!==t.shadow.radius&&(i.shadow.radius=t.shadow.radius),void 0!==t.shadow.mapSize&&i.shadow.mapSize.fromArray(t.shadow.mapSize),void 0!==t.shadow.camera&&(i.shadow.camera=this.parseObject(t.shadow.camera))),void 0!==t.visible&&(i.visible=t.visible),void 0!==t.frustumCulled&&(i.frustumCulled=t.frustumCulled),void 0!==t.renderOrder&&(i.renderOrder=t.renderOrder),void 0!==t.userData&&(i.userData=t.userData),void 0!==t.layers&&(i.layers.mask=t.layers),void 0!==t.children){const s=t.children;for(let t=0;t<s.length;t++)i.add(this.parseObject(s[t],e,n,r))}if(void 0!==t.animations){const e=t.animations;for(let t=0;t<e.length;t++){const n=e[t];i.animations.push(r[n])}}if("LOD"===t.type){void 0!==t.autoUpdate&&(i.autoUpdate=t.autoUpdate);const e=t.levels;for(let t=0;t<e.length;t++){const n=e[t],r=i.getObjectByProperty("uuid",n.object);void 0!==r&&i.addLevel(r,n.distance)}}return i}bindSkeletons(t,e){0!==Object.keys(e).length&&t.traverse(function(t){if(!0===t.isSkinnedMesh&&void 0!==t.skeleton){const n=e[t.skeleton];void 0===n?console.warn("THREE.ObjectLoader: No skeleton found with UUID:",t.skeleton):t.bind(n,t.bindMatrix)}})}setTexturePath(t){return console.warn("THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath()."),this.setResourcePath(t)}}exports.ObjectLoader=_m;const bm={UVMapping:et,CubeReflectionMapping:nt,CubeRefractionMapping:rt,EquirectangularReflectionMapping:it,EquirectangularRefractionMapping:st,CubeUVReflectionMapping:ot,CubeUVRefractionMapping:at},wm={RepeatWrapping:lt,ClampToEdgeWrapping:ct,MirroredRepeatWrapping:ht},Mm={NearestFilter:ut,NearestMipmapNearestFilter:pt,NearestMipmapLinearFilter:mt,LinearFilter:gt,LinearMipmapNearestFilter:xt,LinearMipmapLinearFilter:yt};function Sm(t){"undefined"==typeof createImageBitmap&&console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported."),"undefined"==typeof fetch&&console.warn("THREE.ImageBitmapLoader: fetch() not supported."),hd.call(this,t),this.options={premultiplyAlpha:"none"}}Sm.prototype=Object.assign(Object.create(hd.prototype),{constructor:Sm,isImageBitmapLoader:!0,setOptions:function(t){return this.options=t,this},load:function(t,e,n,r){void 0===t&&(t=""),void 0!==this.path&&(t=this.path+t),t=this.manager.resolveURL(t);const i=this,s=ad.get(t);if(void 0!==s)return i.manager.itemStart(t),setTimeout(function(){e&&e(s),i.manager.itemEnd(t)},0),s;const o={};o.credentials="anonymous"===this.crossOrigin?"same-origin":"include",o.headers=this.requestHeader,fetch(t,o).then(function(t){return t.blob()}).then(function(t){return createImageBitmap(t,Object.assign(i.options,{colorSpaceConversion:"none"}))}).then(function(n){ad.add(t,n),e&&e(n),i.manager.itemEnd(t)}).catch(function(e){r&&r(e),i.manager.itemError(t),i.manager.itemEnd(t)}),i.manager.itemStart(t)}});class Tm{constructor(){this.type="ShapePath",this.color=new xi,this.subPaths=[],this.currentPath=null}moveTo(t,e){return this.currentPath=new Xd,this.subPaths.push(this.currentPath),this.currentPath.moveTo(t,e),this}lineTo(t,e){return this.currentPath.lineTo(t,e),this}quadraticCurveTo(t,e,n,r){return this.currentPath.quadraticCurveTo(t,e,n,r),this}bezierCurveTo(t,e,n,r,i,s){return this.currentPath.bezierCurveTo(t,e,n,r,i,s),this}splineThru(t){return this.currentPath.splineThru(t),this}toShapes(t,e){function n(t){const e=[];for(let n=0,r=t.length;n<r;n++){const r=t[n],i=new Yd;i.curves=r.curves,e.push(i)}return e}function r(t,e){const n=e.length;let r=!1;for(let i=n-1,s=0;s<n;i=s++){let n=e[i],o=e[s],a=o.x-n.x,l=o.y-n.y;if(Math.abs(l)>Number.EPSILON){if(l<0&&(n=e[s],a=-a,o=e[i],l=-l),t.y<n.y||t.y>o.y)continue;if(t.y===n.y){if(t.x===n.x)return!0}else{const e=l*(t.x-n.x)-a*(t.y-n.y);if(0===e)return!0;if(e<0)continue;r=!r}}else{if(t.y!==n.y)continue;if(o.x<=t.x&&t.x<=n.x||n.x<=t.x&&t.x<=o.x)return!0}}return r}const i=dp.isClockWise,s=this.subPaths;if(0===s.length)return[];if(!0===e)return n(s);let o,a,l;const c=[];if(1===s.length)return a=s[0],(l=new Yd).curves=a.curves,c.push(l),c;let h=!i(s[0].getPoints());h=t?!h:h;const u=[],p=[];let d,m,f=[],g=0;p[g]=void 0,f[g]=[];for(let x=0,v=s.length;x<v;x++)o=i(d=(a=s[x]).getPoints()),(o=t?!o:o)?(!h&&p[g]&&g++,p[g]={s:new Yd,p:d},p[g].s.curves=a.curves,h&&g++,f[g]=[]):f[g].push({h:a,p:d[0]});if(!p[0])return n(s);if(p.length>1){let t=!1;const e=[];for(let n=0,r=p.length;n<r;n++)u[n]=[];for(let n=0,i=p.length;n<i;n++){const i=f[n];for(let s=0;s<i.length;s++){const o=i[s];let a=!0;for(let i=0;i<p.length;i++)r(o.p,p[i].p)&&(n!==i&&e.push({froms:n,tos:i,hole:s}),a?(a=!1,u[i].push(o)):t=!0);a&&u[n].push(o)}}e.length>0&&(t||(f=u))}for(let x=0,v=p.length;x<v;x++){l=p[x].s,c.push(l);for(let t=0,e=(m=f[x]).length;t<e;t++)l.holes.push(m[t].h)}return c}}exports.ShapePath=Tm;class Em{constructor(t){this.type="Font",this.data=t}generateShapes(t,e=100){const n=[],r=Am(t,e,this.data);for(let i=0,s=r.length;i<s;i++)Array.prototype.push.apply(n,r[i].toShapes());return n}}function Am(t,e,n){const r=Array.from(t),i=e/n.resolution,s=(n.boundingBox.yMax-n.boundingBox.yMin+n.underlineThickness)*i,o=[];let a=0,l=0;for(let c=0;c<r.length;c++){const t=r[c];if("\n"===t)a=0,l-=s;else{const e=Lm(t,i,a,l,n);a+=e.offsetX,o.push(e.path)}}return o}function Lm(t,e,n,r,i){const s=i.glyphs[t]||i.glyphs["?"];if(!s)return void console.error('THREE.Font: character "'+t+'" does not exists in font family '+i.familyName+".");const o=new Tm;let a,l,c,h,u,p,d,m;if(s.o){const t=s._cachedOutline||(s._cachedOutline=s.o.split(" "));for(let i=0,s=t.length;i<s;){switch(t[i++]){case"m":a=t[i++]*e+n,l=t[i++]*e+r,o.moveTo(a,l);break;case"l":a=t[i++]*e+n,l=t[i++]*e+r,o.lineTo(a,l);break;case"q":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,o.quadraticCurveTo(u,p,c,h);break;case"b":c=t[i++]*e+n,h=t[i++]*e+r,u=t[i++]*e+n,p=t[i++]*e+r,d=t[i++]*e+n,m=t[i++]*e+r,o.bezierCurveTo(u,p,d,m,c,h)}}}return{offsetX:s.ha*e,path:o}}exports.Font=Em,Em.prototype.isFont=!0;class Rm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(i.withCredentials),s.load(t,function(t){let n;try{n=JSON.parse(t)}catch(s){console.warn("THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead."),n=JSON.parse(t.substring(65,t.length-2))}const r=i.parse(n);e&&e(r)},n,r)}parse(t){return new Em(t)}}let Cm;exports.FontLoader=Rm;const Pm={getContext:function(){return void 0===Cm&&(Cm=new(window.AudioContext||window.webkitAudioContext)),Cm},setContext:function(t){Cm=t}};exports.AudioContext=Pm;class Dm extends hd{constructor(t){super(t)}load(t,e,n,r){const i=this,s=new pd(this.manager);s.setResponseType("arraybuffer"),s.setPath(this.path),s.setRequestHeader(this.requestHeader),s.setWithCredentials(this.withCredentials),s.load(t,function(n){try{const o=n.slice(0);Pm.getContext().decodeAudioData(o,function(t){e(t)})}catch(s){r?r(s):console.error(s),i.manager.itemError(t)}},n,r)}}exports.AudioLoader=Dm;class Im extends mm{constructor(t,e,n=1){super(void 0,n);const r=(new xi).set(t),i=(new xi).set(e),s=new Yn(r.r,r.g,r.b),o=new Yn(i.r,i.g,i.b),a=Math.sqrt(Math.PI),l=a*Math.sqrt(.75);this.sh.coefficients[0].copy(s).add(o).multiplyScalar(a),this.sh.coefficients[1].copy(s).sub(o).multiplyScalar(l)}}exports.HemisphereLightProbe=Im,Im.prototype.isHemisphereLightProbe=!0;class Bm extends mm{constructor(t,e=1){super(void 0,e);const n=(new xi).set(t);this.sh.coefficients[0].set(n.r,n.g,n.b).multiplyScalar(2*Math.sqrt(Math.PI))}}exports.AmbientLightProbe=Bm,Bm.prototype.isAmbientLightProbe=!0;const Nm=new wr,Fm=new wr;class Om{constructor(){this.type="StereoCamera",this.aspect=1,this.eyeSep=.064,this.cameraL=new xs,this.cameraL.layers.enable(1),this.cameraL.matrixAutoUpdate=!1,this.cameraR=new xs,this.cameraR.layers.enable(2),this.cameraR.matrixAutoUpdate=!1,this._cache={focus:null,fov:null,aspect:null,near:null,far:null,zoom:null,eyeSep:null}}update(t){const e=this._cache;if(e.focus!==t.focus||e.fov!==t.fov||e.aspect!==t.aspect*this.aspect||e.near!==t.near||e.far!==t.far||e.zoom!==t.zoom||e.eyeSep!==this.eyeSep){e.focus=t.focus,e.fov=t.fov,e.aspect=t.aspect*this.aspect,e.near=t.near,e.far=t.far,e.zoom=t.zoom,e.eyeSep=this.eyeSep;const n=t.projectionMatrix.clone(),r=e.eyeSep/2,i=r*e.near/e.focus,s=e.near*Math.tan(Fn.DEG2RAD*e.fov*.5)/e.zoom;let o,a;Fm.elements[12]=-r,Nm.elements[12]=r,o=-s*e.aspect+i,a=s*e.aspect+i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraL.projectionMatrix.copy(n),o=-s*e.aspect-i,a=s*e.aspect-i,n.elements[0]=2*e.near/(a-o),n.elements[8]=(a+o)/(a-o),this.cameraR.projectionMatrix.copy(n)}this.cameraL.matrixWorld.copy(t.matrixWorld).multiply(Fm),this.cameraR.matrixWorld.copy(t.matrixWorld).multiply(Nm)}}exports.StereoCamera=Om;class zm{constructor(t){this.autoStart=void 0===t||t,this.startTime=0,this.oldTime=0,this.elapsedTime=0,this.running=!1}start(){this.startTime=Gm(),this.oldTime=this.startTime,this.elapsedTime=0,this.running=!0}stop(){this.getElapsedTime(),this.running=!1,this.autoStart=!1}getElapsedTime(){return this.getDelta(),this.elapsedTime}getDelta(){let t=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){const e=Gm();t=(e-this.oldTime)/1e3,this.oldTime=e,this.elapsedTime+=t}return t}}function Gm(){return("undefined"==typeof performance?Date:performance).now()}exports.Clock=zm;const Hm=new Yn,Um=new Xn,km=new Yn,Vm=new Yn;class Wm extends Xr{constructor(){super(),this.type="AudioListener",this.context=Pm.getContext(),this.gain=this.context.createGain(),this.gain.connect(this.context.destination),this.filter=null,this.timeDelta=0,this._clock=new zm}getInput(){return this.gain}removeFilter(){return null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null),this}getFilter(){return this.filter}setFilter(t){return null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):this.gain.disconnect(this.context.destination),this.filter=t,this.gain.connect(this.filter),this.filter.connect(this.context.destination),this}getMasterVolume(){return this.gain.gain.value}setMasterVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}updateMatrixWorld(t){super.updateMatrixWorld(t);const e=this.context.listener,n=this.up;if(this.timeDelta=this._clock.getDelta(),this.matrixWorld.decompose(Hm,Um,km),Vm.set(0,0,-1).applyQuaternion(Um),e.positionX){const t=this.context.currentTime+this.timeDelta;e.positionX.linearRampToValueAtTime(Hm.x,t),e.positionY.linearRampToValueAtTime(Hm.y,t),e.positionZ.linearRampToValueAtTime(Hm.z,t),e.forwardX.linearRampToValueAtTime(Vm.x,t),e.forwardY.linearRampToValueAtTime(Vm.y,t),e.forwardZ.linearRampToValueAtTime(Vm.z,t),e.upX.linearRampToValueAtTime(n.x,t),e.upY.linearRampToValueAtTime(n.y,t),e.upZ.linearRampToValueAtTime(n.z,t)}else e.setPosition(Hm.x,Hm.y,Hm.z),e.setOrientation(Vm.x,Vm.y,Vm.z,n.x,n.y,n.z)}}exports.AudioListener=Wm;class jm extends Xr{constructor(t){super(),this.type="Audio",this.listener=t,this.context=t.context,this.gain=this.context.createGain(),this.gain.connect(t.getInput()),this.autoplay=!1,this.buffer=null,this.detune=0,this.loop=!1,this.loopStart=0,this.loopEnd=0,this.offset=0,this.duration=void 0,this.playbackRate=1,this.isPlaying=!1,this.hasPlaybackControl=!0,this.source=null,this.sourceType="empty",this._startedAt=0,this._progress=0,this._connected=!1,this.filters=[]}getOutput(){return this.gain}setNodeSource(t){return this.hasPlaybackControl=!1,this.sourceType="audioNode",this.source=t,this.connect(),this}setMediaElementSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaNode",this.source=this.context.createMediaElementSource(t),this.connect(),this}setMediaStreamSource(t){return this.hasPlaybackControl=!1,this.sourceType="mediaStreamNode",this.source=this.context.createMediaStreamSource(t),this.connect(),this}setBuffer(t){return this.buffer=t,this.sourceType="buffer",this.autoplay&&this.play(),this}play(t=0){if(!0===this.isPlaying)return void console.warn("THREE.Audio: Audio is already playing.");if(!1===this.hasPlaybackControl)return void console.warn("THREE.Audio: this Audio has no playback control.");this._startedAt=this.context.currentTime+t;const e=this.context.createBufferSource();return e.buffer=this.buffer,e.loop=this.loop,e.loopStart=this.loopStart,e.loopEnd=this.loopEnd,e.onended=this.onEnded.bind(this),e.start(this._startedAt,this._progress+this.offset,this.duration),this.isPlaying=!0,this.source=e,this.setDetune(this.detune),this.setPlaybackRate(this.playbackRate),this.connect()}pause(){if(!1!==this.hasPlaybackControl)return!0===this.isPlaying&&(this._progress+=Math.max(this.context.currentTime-this._startedAt,0)*this.playbackRate,!0===this.loop&&(this._progress=this._progress%(this.duration||this.buffer.duration)),this.source.stop(),this.source.onended=null,this.isPlaying=!1),this;console.warn("THREE.Audio: this Audio has no playback control.")}stop(){if(!1!==this.hasPlaybackControl)return this._progress=0,this.source.stop(),this.source.onended=null,this.isPlaying=!1,this;console.warn("THREE.Audio: this Audio has no playback control.")}connect(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].connect(this.filters[t]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());return this._connected=!0,this}disconnect(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(let t=1,e=this.filters.length;t<e;t++)this.filters[t-1].disconnect(this.filters[t]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this._connected=!1,this}getFilters(){return this.filters}setFilters(t){return t||(t=[]),!0===this._connected?(this.disconnect(),this.filters=t.slice(),this.connect()):this.filters=t.slice(),this}setDetune(t){if(this.detune=t,void 0!==this.source.detune)return!0===this.isPlaying&&this.source.detune.setTargetAtTime(this.detune,this.context.currentTime,.01),this}getDetune(){return this.detune}getFilter(){return this.getFilters()[0]}setFilter(t){return this.setFilters(t?[t]:[])}setPlaybackRate(t){if(!1!==this.hasPlaybackControl)return this.playbackRate=t,!0===this.isPlaying&&this.source.playbackRate.setTargetAtTime(this.playbackRate,this.context.currentTime,.01),this;console.warn("THREE.Audio: this Audio has no playback control.")}getPlaybackRate(){return this.playbackRate}onEnded(){this.isPlaying=!1}getLoop(){return!1===this.hasPlaybackControl?(console.warn("THREE.Audio: this Audio has no playback control."),!1):this.loop}setLoop(t){if(!1!==this.hasPlaybackControl)return this.loop=t,!0===this.isPlaying&&(this.source.loop=this.loop),this;console.warn("THREE.Audio: this Audio has no playback control.")}setLoopStart(t){return this.loopStart=t,this}setLoopEnd(t){return this.loopEnd=t,this}getVolume(){return this.gain.gain.value}setVolume(t){return this.gain.gain.setTargetAtTime(t,this.context.currentTime,.01),this}}exports.Audio=jm;const qm=new Yn,Xm=new Xn,Ym=new Yn,Zm=new Yn;class Jm extends jm{constructor(t){super(t),this.panner=this.context.createPanner(),this.panner.panningModel="HRTF",this.panner.connect(this.gain)}getOutput(){return this.panner}getRefDistance(){return this.panner.refDistance}setRefDistance(t){return this.panner.refDistance=t,this}getRolloffFactor(){return this.panner.rolloffFactor}setRolloffFactor(t){return this.panner.rolloffFactor=t,this}getDistanceModel(){return this.panner.distanceModel}setDistanceModel(t){return this.panner.distanceModel=t,this}getMaxDistance(){return this.panner.maxDistance}setMaxDistance(t){return this.panner.maxDistance=t,this}setDirectionalCone(t,e,n){return this.panner.coneInnerAngle=t,this.panner.coneOuterAngle=e,this.panner.coneOuterGain=n,this}updateMatrixWorld(t){if(super.updateMatrixWorld(t),!0===this.hasPlaybackControl&&!1===this.isPlaying)return;this.matrixWorld.decompose(qm,Xm,Ym),Zm.set(0,0,1).applyQuaternion(Xm);const e=this.panner;if(e.positionX){const t=this.context.currentTime+this.listener.timeDelta;e.positionX.linearRampToValueAtTime(qm.x,t),e.positionY.linearRampToValueAtTime(qm.y,t),e.positionZ.linearRampToValueAtTime(qm.z,t),e.orientationX.linearRampToValueAtTime(Zm.x,t),e.orientationY.linearRampToValueAtTime(Zm.y,t),e.orientationZ.linearRampToValueAtTime(Zm.z,t)}else e.setPosition(qm.x,qm.y,qm.z),e.setOrientation(Zm.x,Zm.y,Zm.z)}}exports.PositionalAudio=Jm;class Qm{constructor(t,e=2048){this.analyser=t.context.createAnalyser(),this.analyser.fftSize=e,this.data=new Uint8Array(this.analyser.frequencyBinCount),t.getOutput().connect(this.analyser)}getFrequencyData(){return this.analyser.getByteFrequencyData(this.data),this.data}getAverageFrequency(){let t=0;const e=this.getFrequencyData();for(let n=0;n<e.length;n++)t+=e[n];return t/e.length}}exports.AudioAnalyser=Qm;class Km{constructor(t,e,n){let r,i,s;switch(this.binding=t,this.valueSize=n,e){case"quaternion":r=this._slerp,i=this._slerpAdditive,s=this._setAdditiveIdentityQuaternion,this.buffer=new Float64Array(6*n),this._workIndex=5;break;case"string":case"bool":r=this._select,i=this._select,s=this._setAdditiveIdentityOther,this.buffer=new Array(5*n);break;default:r=this._lerp,i=this._lerpAdditive,s=this._setAdditiveIdentityNumeric,this.buffer=new Float64Array(5*n)}this._mixBufferRegion=r,this._mixBufferRegionAdditive=i,this._setIdentity=s,this._origIndex=3,this._addIndex=4,this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,this.useCount=0,this.referenceCount=0}accumulate(t,e){const n=this.buffer,r=this.valueSize,i=t*r+r;let s=this.cumulativeWeight;if(0===s){for(let t=0;t!==r;++t)n[i+t]=n[t];s=e}else{const t=e/(s+=e);this._mixBufferRegion(n,i,0,t,r)}this.cumulativeWeight=s}accumulateAdditive(t){const e=this.buffer,n=this.valueSize,r=n*this._addIndex;0===this.cumulativeWeightAdditive&&this._setIdentity(),this._mixBufferRegionAdditive(e,r,0,t,n),this.cumulativeWeightAdditive+=t}apply(t){const e=this.valueSize,n=this.buffer,r=t*e+e,i=this.cumulativeWeight,s=this.cumulativeWeightAdditive,o=this.binding;if(this.cumulativeWeight=0,this.cumulativeWeightAdditive=0,i<1){const t=e*this._origIndex;this._mixBufferRegion(n,r,t,1-i,e)}s>0&&this._mixBufferRegionAdditive(n,r,this._addIndex*e,1,e);for(let a=e,l=e+e;a!==l;++a)if(n[a]!==n[a+e]){o.setValue(n,r);break}}saveOriginalState(){const t=this.binding,e=this.buffer,n=this.valueSize,r=n*this._origIndex;t.getValue(e,r);for(let i=n,s=r;i!==s;++i)e[i]=e[r+i%n];this._setIdentity(),this.cumulativeWeight=0,this.cumulativeWeightAdditive=0}restoreOriginalState(){const t=3*this.valueSize;this.binding.setValue(this.buffer,t)}_setAdditiveIdentityNumeric(){const t=this._addIndex*this.valueSize,e=t+this.valueSize;for(let n=t;n<e;n++)this.buffer[n]=0}_setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric(),this.buffer[this._addIndex*this.valueSize+3]=1}_setAdditiveIdentityOther(){const t=this._origIndex*this.valueSize,e=this._addIndex*this.valueSize;for(let n=0;n<this.valueSize;n++)this.buffer[e+n]=this.buffer[t+n]}_select(t,e,n,r,i){if(r>=.5)for(let s=0;s!==i;++s)t[e+s]=t[n+s]}_slerp(t,e,n,r){Xn.slerpFlat(t,e,t,e,t,n,r)}_slerpAdditive(t,e,n,r,i){const s=this._workIndex*i;Xn.multiplyQuaternionsFlat(t,s,t,e,t,n),Xn.slerpFlat(t,e,t,e,t,s,r)}_lerp(t,e,n,r,i){const s=1-r;for(let o=0;o!==i;++o){const i=e+o;t[i]=t[i]*s+t[n+o]*r}}_lerpAdditive(t,e,n,r,i){for(let s=0;s!==i;++s){const i=e+s;t[i]=t[i]+t[n+s]*r}}}exports.PropertyMixer=Km;const $m="\\[\\]\\.:\\/",tf=new RegExp("[\\[\\]\\.:\\/]","g"),ef="[^\\[\\]\\.:\\/]",nf="[^"+"\\[\\]\\.:\\/".replace("\\.","")+"]",rf=/((?:WC+[\/:])*)/.source.replace("WC",ef),sf=/(WCOD+)?/.source.replace("WCOD",nf),of=/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC",ef),af=/\.(WC+)(?:\[(.+)\])?/.source.replace("WC",ef),lf=new RegExp("^"+rf+sf+of+af+"$"),cf=["material","materials","bones"];function hf(t,e,n){const r=n||uf.parseTrackName(e);this._targetGroup=t,this._bindings=t.subscribe_(e,r)}function uf(t,e,n){this.path=e,this.parsedPath=n||uf.parseTrackName(e),this.node=uf.findNode(t,this.parsedPath.nodeName)||t,this.rootNode=t}Object.assign(hf.prototype,{getValue:function(t,e){this.bind();const n=this._targetGroup.nCachedObjects_,r=this._bindings[n];void 0!==r&&r.getValue(t,e)},setValue:function(t,e){const n=this._bindings;for(let r=this._targetGroup.nCachedObjects_,i=n.length;r!==i;++r)n[r].setValue(t,e)},bind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].bind()},unbind:function(){const t=this._bindings;for(let e=this._targetGroup.nCachedObjects_,n=t.length;e!==n;++e)t[e].unbind()}}),Object.assign(uf,{Composite:hf,create:function(t,e,n){return t&&t.isAnimationObjectGroup?new uf.Composite(t,e,n):new uf(t,e,n)},sanitizeNodeName:function(t){return t.replace(/\s/g,"_").replace(tf,"")},parseTrackName:function(t){const e=lf.exec(t);if(!e)throw new Error("PropertyBinding: Cannot parse trackName: "+t);const n={nodeName:e[2],objectName:e[3],objectIndex:e[4],propertyName:e[5],propertyIndex:e[6]},r=n.nodeName&&n.nodeName.lastIndexOf(".");if(void 0!==r&&-1!==r){const t=n.nodeName.substring(r+1);-1!==cf.indexOf(t)&&(n.nodeName=n.nodeName.substring(0,r),n.objectName=t)}if(null===n.propertyName||0===n.propertyName.length)throw new Error("PropertyBinding: can not parse propertyName from trackName: "+t);return n},findNode:function(t,e){if(!e||""===e||"."===e||-1===e||e===t.name||e===t.uuid)return t;if(t.skeleton){const n=t.skeleton.getBoneByName(e);if(void 0!==n)return n}if(t.children){const n=function(t){for(let r=0;r<t.length;r++){const i=t[r];if(i.name===e||i.uuid===e)return i;const s=n(i.children);if(s)return s}return null},r=n(t.children);if(r)return r}return null}}),Object.assign(uf.prototype,{_getValue_unavailable:function(){},_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(t,e){t[e]=this.node[this.propertyName]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)t[e++]=n[r]},function(t,e){t[e]=this.resolvedProperty[this.propertyIndex]},function(t,e){this.resolvedProperty.toArray(t,e)}],SetterByBindingTypeAndVersioning:[[function(t,e){this.targetObject[this.propertyName]=t[e]},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.targetObject[this.propertyName]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++]},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.needsUpdate=!0},function(t,e){const n=this.resolvedProperty;for(let r=0,i=n.length;r!==i;++r)n[r]=t[e++];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty[this.propertyIndex]=t[e]},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty[this.propertyIndex]=t[e],this.targetObject.matrixWorldNeedsUpdate=!0}],[function(t,e){this.resolvedProperty.fromArray(t,e)},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.needsUpdate=!0},function(t,e){this.resolvedProperty.fromArray(t,e),this.targetObject.matrixWorldNeedsUpdate=!0}]],getValue:function(t,e){this.bind(),this.getValue(t,e)},setValue:function(t,e){this.bind(),this.setValue(t,e)},bind:function(){let t=this.node;const e=this.parsedPath,n=e.objectName,r=e.propertyName;let i=e.propertyIndex;if(t||(t=uf.findNode(this.rootNode,e.nodeName)||this.rootNode,this.node=t),this.getValue=this._getValue_unavailable,this.setValue=this._setValue_unavailable,!t)return void console.error("THREE.PropertyBinding: Trying to update node for track: "+this.path+" but it wasn't found.");if(n){let r=e.objectIndex;switch(n){case"materials":if(!t.material)return void console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",this);if(!t.material.materials)return void console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);t=t.material.materials;break;case"bones":if(!t.skeleton)return void console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);t=t.skeleton.bones;for(let e=0;e<t.length;e++)if(t[e].name===r){r=e;break}break;default:if(void 0===t[n])return void console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",this);t=t[n]}if(void 0!==r){if(void 0===t[r])return void console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,t);t=t[r]}}const s=t[r];if(void 0===s){const n=e.nodeName;return void console.error("THREE.PropertyBinding: Trying to update property for track: "+n+"."+r+" but it wasn't found.",t)}let o=this.Versioning.None;this.targetObject=t,void 0!==t.needsUpdate?o=this.Versioning.NeedsUpdate:void 0!==t.matrixWorldNeedsUpdate&&(o=this.Versioning.MatrixWorldNeedsUpdate);let a=this.BindingType.Direct;if(void 0!==i){if("morphTargetInfluences"===r){if(!t.geometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);if(!t.geometry.isBufferGeometry)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.",this);if(!t.geometry.morphAttributes)return void console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);void 0!==t.morphTargetDictionary[i]&&(i=t.morphTargetDictionary[i])}a=this.BindingType.ArrayElement,this.resolvedProperty=s,this.propertyIndex=i}else void 0!==s.fromArray&&void 0!==s.toArray?(a=this.BindingType.HasFromToArray,this.resolvedProperty=s):Array.isArray(s)?(a=this.BindingType.EntireArray,this.resolvedProperty=s):this.propertyName=r;this.getValue=this.GetterByBindingType[a],this.setValue=this.SetterByBindingTypeAndVersioning[a][o]},unbind:function(){this.node=null,this.getValue=this._getValue_unbound,this.setValue=this._setValue_unbound}}),Object.assign(uf.prototype,{_getValue_unbound:uf.prototype.getValue,_setValue_unbound:uf.prototype.setValue});class pf{constructor(){this.uuid=Fn.generateUUID(),this._objects=Array.prototype.slice.call(arguments),this.nCachedObjects_=0;const t={};this._indicesByUUID=t;for(let n=0,r=arguments.length;n!==r;++n)t[arguments[n].uuid]=n;this._paths=[],this._parsedPaths=[],this._bindings=[],this._bindingsIndicesByPath={};const e=this;this.stats={objects:{get total(){return e._objects.length},get inUse(){return this.total-e.nCachedObjects_}},get bindingsPerObject(){return e._bindings.length}}}add(){const t=this._objects,e=this._indicesByUUID,n=this._paths,r=this._parsedPaths,i=this._bindings,s=i.length;let o=void 0,a=t.length,l=this.nCachedObjects_;for(let c=0,h=arguments.length;c!==h;++c){const h=arguments[c],u=h.uuid;let p=e[u];if(void 0===p){p=a++,e[u]=p,t.push(h);for(let t=0,e=s;t!==e;++t)i[t].push(new uf(h,n[t],r[t]))}else if(p<l){o=t[p];const a=--l,c=t[a];e[c.uuid]=p,t[p]=c,e[u]=a,t[a]=h;for(let t=0,e=s;t!==e;++t){const e=i[t],s=e[a];let o=e[p];e[p]=s,void 0===o&&(o=new uf(h,n[t],r[t])),e[a]=o}}else t[p]!==o&&console.error("THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.")}this.nCachedObjects_=l}remove(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_;for(let s=0,o=arguments.length;s!==o;++s){const o=arguments[s],a=o.uuid,l=e[a];if(void 0!==l&&l>=i){const s=i++,c=t[s];e[c.uuid]=l,t[l]=c,e[a]=s,t[s]=o;for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[s],i=e[l];e[l]=r,e[s]=i}}}this.nCachedObjects_=i}uncache(){const t=this._objects,e=this._indicesByUUID,n=this._bindings,r=n.length;let i=this.nCachedObjects_,s=t.length;for(let o=0,a=arguments.length;o!==a;++o){const a=arguments[o].uuid,l=e[a];if(void 0!==l)if(delete e[a],l<i){const o=--i,a=t[o],c=--s,h=t[c];e[a.uuid]=l,t[l]=a,e[h.uuid]=o,t[o]=h,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t],r=e[o],i=e[c];e[l]=r,e[o]=i,e.pop()}}else{const i=--s,o=t[i];i>0&&(e[o.uuid]=l),t[l]=o,t.pop();for(let t=0,e=r;t!==e;++t){const e=n[t];e[l]=e[i],e.pop()}}}this.nCachedObjects_=i}subscribe_(t,e){const n=this._bindingsIndicesByPath;let r=n[t];const i=this._bindings;if(void 0!==r)return i[r];const s=this._paths,o=this._parsedPaths,a=this._objects,l=a.length,c=this.nCachedObjects_,h=new Array(l);r=i.length,n[t]=r,s.push(t),o.push(e),i.push(h);for(let u=c,p=a.length;u!==p;++u){const n=a[u];h[u]=new uf(n,t,e)}return h}unsubscribe_(t){const e=this._bindingsIndicesByPath,n=e[t];if(void 0!==n){const r=this._paths,i=this._parsedPaths,s=this._bindings,o=s.length-1,a=s[o];e[t[o]]=n,s[n]=a,s.pop(),i[n]=i[o],i.pop(),r[n]=r[o],r.pop()}}}exports.AnimationObjectGroup=pf,pf.prototype.isAnimationObjectGroup=!0;class df{constructor(t,e,n=null,r=e.blendMode){this._mixer=t,this._clip=e,this._localRoot=n,this.blendMode=r;const i=e.tracks,s=i.length,o=new Array(s),a={endingStart:Ge,endingEnd:Ge};for(let l=0;l!==s;++l){const t=i[l].createInterpolant(null);o[l]=t,t.settings=a}this._interpolantSettings=a,this._interpolants=o,this._propertyBindings=new Array(s),this._cacheIndex=null,this._byClipCacheIndex=null,this._timeScaleInterpolant=null,this._weightInterpolant=null,this.loop=Be,this._loopCount=-1,this._startTime=null,this.time=0,this.timeScale=1,this._effectiveTimeScale=1,this.weight=1,this._effectiveWeight=1,this.repetitions=1/0,this.paused=!1,this.enabled=!0,this.clampWhenFinished=!1,this.zeroSlopeAtStart=!0,this.zeroSlopeAtEnd=!0}play(){return this._mixer._activateAction(this),this}stop(){return this._mixer._deactivateAction(this),this.reset()}reset(){return this.paused=!1,this.enabled=!0,this.time=0,this._loopCount=-1,this._startTime=null,this.stopFading().stopWarping()}isRunning(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)}isScheduled(){return this._mixer._isActiveAction(this)}startAt(t){return this._startTime=t,this}setLoop(t,e){return this.loop=t,this.repetitions=e,this}setEffectiveWeight(t){return this.weight=t,this._effectiveWeight=this.enabled?t:0,this.stopFading()}getEffectiveWeight(){return this._effectiveWeight}fadeIn(t){return this._scheduleFading(t,0,1)}fadeOut(t){return this._scheduleFading(t,1,0)}crossFadeFrom(t,e,n){if(t.fadeOut(e),this.fadeIn(e),n){const n=this._clip.duration,r=t._clip.duration,i=r/n,s=n/r;t.warp(1,i,e),this.warp(s,1,e)}return this}crossFadeTo(t,e,n){return t.crossFadeFrom(this,e,n)}stopFading(){const t=this._weightInterpolant;return null!==t&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}setEffectiveTimeScale(t){return this.timeScale=t,this._effectiveTimeScale=this.paused?0:t,this.stopWarping()}getEffectiveTimeScale(){return this._effectiveTimeScale}setDuration(t){return this.timeScale=this._clip.duration/t,this.stopWarping()}syncWith(t){return this.time=t.time,this.timeScale=t.timeScale,this.stopWarping()}halt(t){return this.warp(this._effectiveTimeScale,0,t)}warp(t,e,n){const r=this._mixer,i=r.time,s=this.timeScale;let o=this._timeScaleInterpolant;null===o&&(o=r._lendControlInterpolant(),this._timeScaleInterpolant=o);const a=o.parameterPositions,l=o.sampleValues;return a[0]=i,a[1]=i+n,l[0]=t/s,l[1]=e/s,this}stopWarping(){const t=this._timeScaleInterpolant;return null!==t&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(t)),this}getMixer(){return this._mixer}getClip(){return this._clip}getRoot(){return this._localRoot||this._mixer._root}_update(t,e,n,r){if(!this.enabled)return void this._updateWeight(t);const i=this._startTime;if(null!==i){const r=(t-i)*n;if(r<0||0===n)return;this._startTime=null,e=n*r}e*=this._updateTimeScale(t);const s=this._updateTime(e),o=this._updateWeight(t);if(o>0){const t=this._interpolants,e=this._propertyBindings;switch(this.blendMode){case Ve:for(let n=0,r=t.length;n!==r;++n)t[n].evaluate(s),e[n].accumulateAdditive(o);break;case ke:default:for(let n=0,i=t.length;n!==i;++n)t[n].evaluate(s),e[n].accumulate(r,o)}}}_updateWeight(t){let e=0;if(this.enabled){e=this.weight;const n=this._weightInterpolant;if(null!==n){const r=n.evaluate(t)[0];e*=r,t>n.parameterPositions[1]&&(this.stopFading(),0===r&&(this.enabled=!1))}}return this._effectiveWeight=e,e}_updateTimeScale(t){let e=0;if(!this.paused){e=this.timeScale;const n=this._timeScaleInterpolant;if(null!==n){e*=n.evaluate(t)[0],t>n.parameterPositions[1]&&(this.stopWarping(),0===e?this.paused=!0:this.timeScale=e)}}return this._effectiveTimeScale=e,e}_updateTime(t){const e=this._clip.duration,n=this.loop;let r=this.time+t,i=this._loopCount;const s=n===Ne;if(0===t)return-1===i?r:s&&1==(1&i)?e-r:r;if(n===Ie){-1===i&&(this._loopCount=0,this._setEndings(!0,!0,!1));t:{if(r>=e)r=e;else{if(!(r<0)){this.time=r;break t}r=0}this.clampWhenFinished?this.paused=!0:this.enabled=!1,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t<0?-1:1})}}else{if(-1===i&&(t>=0?(i=0,this._setEndings(!0,0===this.repetitions,s)):this._setEndings(0===this.repetitions,!0,s)),r>=e||r<0){const n=Math.floor(r/e);r-=e*n,i+=Math.abs(n);const o=this.repetitions-i;if(o<=0)this.clampWhenFinished?this.paused=!0:this.enabled=!1,r=t>0?e:0,this.time=r,this._mixer.dispatchEvent({type:"finished",action:this,direction:t>0?1:-1});else{if(1===o){const e=t<0;this._setEndings(e,!e,s)}else this._setEndings(!1,!1,s);this._loopCount=i,this.time=r,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:n})}}else this.time=r;if(s&&1==(1&i))return e-r}return r}_setEndings(t,e,n){const r=this._interpolantSettings;n?(r.endingStart=He,r.endingEnd=He):(r.endingStart=t?this.zeroSlopeAtStart?He:Ge:Ue,r.endingEnd=e?this.zeroSlopeAtEnd?He:Ge:Ue)}_scheduleFading(t,e,n){const r=this._mixer,i=r.time;let s=this._weightInterpolant;null===s&&(s=r._lendControlInterpolant(),this._weightInterpolant=s);const o=s.parameterPositions,a=s.sampleValues;return o[0]=i,a[0]=e,o[1]=i+t,a[1]=n,this}}class mf extends In{constructor(t){super(),this._root=t,this._initMemoryManager(),this._accuIndex=0,this.time=0,this.timeScale=1}_bindAction(t,e){const n=t._localRoot||this._root,r=t._clip.tracks,i=r.length,s=t._propertyBindings,o=t._interpolants,a=n.uuid,l=this._bindingsByRootAndName;let c=l[a];void 0===c&&(c={},l[a]=c);for(let h=0;h!==i;++h){const t=r[h],i=t.name;let l=c[i];if(void 0!==l)s[h]=l;else{if(void 0!==(l=s[h])){null===l._cacheIndex&&(++l.referenceCount,this._addInactiveBinding(l,a,i));continue}const r=e&&e._propertyBindings[h].binding.parsedPath;++(l=new Km(uf.create(n,i,r),t.ValueTypeName,t.getValueSize())).referenceCount,this._addInactiveBinding(l,a,i),s[h]=l}o[h].resultBuffer=l.buffer}}_activateAction(t){if(!this._isActiveAction(t)){if(null===t._cacheIndex){const e=(t._localRoot||this._root).uuid,n=t._clip.uuid,r=this._actionsByClip[n];this._bindAction(t,r&&r.knownActions[0]),this._addInactiveAction(t,n,e)}const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==n.useCount++&&(this._lendBinding(n),n.saveOriginalState())}this._lendAction(t)}}_deactivateAction(t){if(this._isActiveAction(t)){const e=t._propertyBindings;for(let t=0,n=e.length;t!==n;++t){const n=e[t];0==--n.useCount&&(n.restoreOriginalState(),this._takeBackBinding(n))}this._takeBackAction(t)}}_initMemoryManager(){this._actions=[],this._nActiveActions=0,this._actionsByClip={},this._bindings=[],this._nActiveBindings=0,this._bindingsByRootAndName={},this._controlInterpolants=[],this._nActiveControlInterpolants=0;const t=this;this.stats={actions:{get total(){return t._actions.length},get inUse(){return t._nActiveActions}},bindings:{get total(){return t._bindings.length},get inUse(){return t._nActiveBindings}},controlInterpolants:{get total(){return t._controlInterpolants.length},get inUse(){return t._nActiveControlInterpolants}}}}_isActiveAction(t){const e=t._cacheIndex;return null!==e&&e<this._nActiveActions}_addInactiveAction(t,e,n){const r=this._actions,i=this._actionsByClip;let s=i[e];if(void 0===s)s={knownActions:[t],actionByRoot:{}},t._byClipCacheIndex=0,i[e]=s;else{const e=s.knownActions;t._byClipCacheIndex=e.length,e.push(t)}t._cacheIndex=r.length,r.push(t),s.actionByRoot[n]=t}_removeInactiveAction(t){const e=this._actions,n=e[e.length-1],r=t._cacheIndex;n._cacheIndex=r,e[r]=n,e.pop(),t._cacheIndex=null;const i=t._clip.uuid,s=this._actionsByClip,o=s[i],a=o.knownActions,l=a[a.length-1],c=t._byClipCacheIndex;l._byClipCacheIndex=c,a[c]=l,a.pop(),t._byClipCacheIndex=null,delete o.actionByRoot[(t._localRoot||this._root).uuid],0===a.length&&delete s[i],this._removeInactiveBindingsForAction(t)}_removeInactiveBindingsForAction(t){const e=t._propertyBindings;for(let n=0,r=e.length;n!==r;++n){const t=e[n];0==--t.referenceCount&&this._removeInactiveBinding(t)}}_lendAction(t){const e=this._actions,n=t._cacheIndex,r=this._nActiveActions++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackAction(t){const e=this._actions,n=t._cacheIndex,r=--this._nActiveActions,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_addInactiveBinding(t,e,n){const r=this._bindingsByRootAndName,i=this._bindings;let s=r[e];void 0===s&&(s={},r[e]=s),s[n]=t,t._cacheIndex=i.length,i.push(t)}_removeInactiveBinding(t){const e=this._bindings,n=t.binding,r=n.rootNode.uuid,i=n.path,s=this._bindingsByRootAndName,o=s[r],a=e[e.length-1],l=t._cacheIndex;a._cacheIndex=l,e[l]=a,e.pop(),delete o[i],0===Object.keys(o).length&&delete s[r]}_lendBinding(t){const e=this._bindings,n=t._cacheIndex,r=this._nActiveBindings++,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_takeBackBinding(t){const e=this._bindings,n=t._cacheIndex,r=--this._nActiveBindings,i=e[r];t._cacheIndex=r,e[r]=t,i._cacheIndex=n,e[n]=i}_lendControlInterpolant(){const t=this._controlInterpolants,e=this._nActiveControlInterpolants++;let n=t[e];return void 0===n&&((n=new Yp(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer)).__cacheIndex=e,t[e]=n),n}_takeBackControlInterpolant(t){const e=this._controlInterpolants,n=t.__cacheIndex,r=--this._nActiveControlInterpolants,i=e[r];t.__cacheIndex=r,e[r]=t,i.__cacheIndex=n,e[n]=i}clipAction(t,e,n){const r=e||this._root,i=r.uuid;let s="string"==typeof t?id.findByName(r,t):t;const o=null!==s?s.uuid:t,a=this._actionsByClip[o];let l=null;if(void 0===n&&(n=null!==s?s.blendMode:ke),void 0!==a){const t=a.actionByRoot[i];if(void 0!==t&&t.blendMode===n)return t;l=a.knownActions[0],null===s&&(s=l._clip)}if(null===s)return null;const c=new df(this,s,e,n);return this._bindAction(c,l),this._addInactiveAction(c,o,i),c}existingAction(t,e){const n=e||this._root,r=n.uuid,i="string"==typeof t?id.findByName(n,t):t,s=i?i.uuid:t,o=this._actionsByClip[s];return void 0!==o&&o.actionByRoot[r]||null}stopAllAction(){const t=this._actions;for(let e=this._nActiveActions-1;e>=0;--e)t[e].stop();return this}update(t){t*=this.timeScale;const e=this._actions,n=this._nActiveActions,r=this.time+=t,i=Math.sign(t),s=this._accuIndex^=1;for(let l=0;l!==n;++l){e[l]._update(r,t,i,s)}const o=this._bindings,a=this._nActiveBindings;for(let l=0;l!==a;++l)o[l].apply(s);return this}setTime(t){this.time=0;for(let e=0;e<this._actions.length;e++)this._actions[e].time=0;return this.update(t)}getRoot(){return this._root}uncacheClip(t){const e=this._actions,n=t.uuid,r=this._actionsByClip,i=r[n];if(void 0!==i){const t=i.knownActions;for(let n=0,r=t.length;n!==r;++n){const r=t[n];this._deactivateAction(r);const i=r._cacheIndex,s=e[e.length-1];r._cacheIndex=null,r._byClipCacheIndex=null,s._cacheIndex=i,e[i]=s,e.pop(),this._removeInactiveBindingsForAction(r)}delete r[n]}}uncacheRoot(t){const e=t.uuid,n=this._actionsByClip;for(const i in n){const t=n[i].actionByRoot[e];void 0!==t&&(this._deactivateAction(t),this._removeInactiveAction(t))}const r=this._bindingsByRootAndName[e];if(void 0!==r)for(const i in r){const t=r[i];t.restoreOriginalState(),this._removeInactiveBinding(t)}}uncacheAction(t,e){const n=this.existingAction(t,e);null!==n&&(this._deactivateAction(n),this._removeInactiveAction(n))}}exports.AnimationMixer=mf,mf.prototype._controlInterpolantsResultBuffer=new Float32Array(1);class ff{constructor(t){"string"==typeof t&&(console.warn("THREE.Uniform: Type parameter is no longer needed."),t=arguments[1]),this.value=t}clone(){return new ff(void 0===this.value.clone?this.value:this.value.clone())}}function gf(t,e,n){_h.call(this,t,e),this.meshPerAttribute=n||1}function xf(t,e,n,r,i){this.buffer=t,this.type=e,this.itemSize=n,this.elementSize=r,this.count=i,this.version=0}function vf(t,e,n=0,r=1/0){this.ray=new br(t,e),this.near=n,this.far=r,this.camera=null,this.layers=new Ir,this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}},Object.defineProperties(this.params,{PointCloud:{get:function(){return console.warn("THREE.Raycaster: params.PointCloud has been renamed to params.Points."),this.Points}}})}function yf(t,e){return t.distance-e.distance}function _f(t,e,n,r){if(t.layers.test(e.layers)&&t.raycast(e,n),!0===r){const r=t.children;for(let t=0,i=r.length;t<i;t++)_f(r[t],e,n,!0)}}exports.Uniform=ff,gf.prototype=Object.assign(Object.create(_h.prototype),{constructor:gf,isInstancedInterleavedBuffer:!0,copy:function(t){return _h.prototype.copy.call(this,t),this.meshPerAttribute=t.meshPerAttribute,this},clone:function(t){const e=_h.prototype.clone.call(this,t);return e.meshPerAttribute=this.meshPerAttribute,e},toJSON:function(t){const e=_h.prototype.toJSON.call(this,t);return e.isInstancedInterleavedBuffer=!0,e.meshPerAttribute=this.meshPerAttribute,e}}),Object.defineProperty(xf.prototype,"needsUpdate",{set:function(t){!0===t&&this.version++}}),Object.assign(xf.prototype,{isGLBufferAttribute:!0,setBuffer:function(t){return this.buffer=t,this},setType:function(t,e){return this.type=t,this.elementSize=e,this},setItemSize:function(t){return this.itemSize=t,this},setCount:function(t){return this.count=t,this}}),Object.assign(vf.prototype,{set:function(t,e){this.ray.set(t,e)},setFromCamera:function(t,e){e&&e.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(e.matrixWorld),this.ray.direction.set(t.x,t.y,.5).unproject(e).sub(this.ray.origin).normalize(),this.camera=e):e&&e.isOrthographicCamera?(this.ray.origin.set(t.x,t.y,(e.near+e.far)/(e.near-e.far)).unproject(e),this.ray.direction.set(0,0,-1).transformDirection(e.matrixWorld),this.camera=e):console.error("THREE.Raycaster: Unsupported camera type: "+e.type)},intersectObject:function(t,e=!1,n=[]){return _f(t,this,n,e),n.sort(yf),n},intersectObjects:function(t,e=!1,n=[]){for(let r=0,i=t.length;r<i;r++)_f(t[r],this,n,e);return n.sort(yf),n}});class bf{constructor(t=1,e=0,n=0){return this.radius=t,this.phi=e,this.theta=n,this}set(t,e,n){return this.radius=t,this.phi=e,this.theta=n,this}copy(t){return this.radius=t.radius,this.phi=t.phi,this.theta=t.theta,this}makeSafe(){return this.phi=Math.max(1e-6,Math.min(Math.PI-1e-6,this.phi)),this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+e*e+n*n),0===this.radius?(this.theta=0,this.phi=0):(this.theta=Math.atan2(t,n),this.phi=Math.acos(Fn.clamp(e/this.radius,-1,1))),this}clone(){return(new this.constructor).copy(this)}}exports.Spherical=bf;class wf{constructor(t=1,e=0,n=0){return this.radius=t,this.theta=e,this.y=n,this}set(t,e,n){return this.radius=t,this.theta=e,this.y=n,this}copy(t){return this.radius=t.radius,this.theta=t.theta,this.y=t.y,this}setFromVector3(t){return this.setFromCartesianCoords(t.x,t.y,t.z)}setFromCartesianCoords(t,e,n){return this.radius=Math.sqrt(t*t+n*n),this.theta=Math.atan2(t,n),this.y=e,this}clone(){return(new this.constructor).copy(this)}}exports.Cylindrical=wf;const Mf=new On;class Sf{constructor(t=new On(1/0,1/0),e=new On(-1/0,-1/0)){this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromPoints(t){this.makeEmpty();for(let e=0,n=t.length;e<n;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const n=Mf.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(n),this.max.copy(t).add(n),this}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=1/0,this.max.x=this.max.y=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y}getCenter(t){return void 0===t&&(console.warn("THREE.Box2: .getCenter() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return void 0===t&&(console.warn("THREE.Box2: .getSize() target is now required"),t=new On),this.isEmpty()?t.set(0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}containsPoint(t){return!(t.x<this.min.x||t.x>this.max.x||t.y<this.min.y||t.y>this.max.y)}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y}getParameter(t,e){return void 0===e&&(console.warn("THREE.Box2: .getParameter() target is now required"),e=new On),e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y))}intersectsBox(t){return!(t.max.x<this.min.x||t.min.x>this.max.x||t.max.y<this.min.y||t.min.y>this.max.y)}clampPoint(t,e){return void 0===e&&(console.warn("THREE.Box2: .clampPoint() target is now required"),e=new On),e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return Mf.copy(t).clamp(this.min,this.max).sub(t).length()}intersect(t){return this.min.max(t.min),this.max.min(t.max),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}exports.Box2=Sf,Sf.prototype.isBox2=!0;const Tf=new Yn,Ef=new Yn;class Af{constructor(t=new Yn,e=new Yn){this.start=t,this.end=e}set(t,e){return this.start.copy(t),this.end.copy(e),this}copy(t){return this.start.copy(t.start),this.end.copy(t.end),this}getCenter(t){return void 0===t&&(console.warn("THREE.Line3: .getCenter() target is now required"),t=new Yn),t.addVectors(this.start,this.end).multiplyScalar(.5)}delta(t){return void 0===t&&(console.warn("THREE.Line3: .delta() target is now required"),t=new Yn),t.subVectors(this.end,this.start)}distanceSq(){return this.start.distanceToSquared(this.end)}distance(){return this.start.distanceTo(this.end)}at(t,e){return void 0===e&&(console.warn("THREE.Line3: .at() target is now required"),e=new Yn),this.delta(e).multiplyScalar(t).add(this.start)}closestPointToPointParameter(t,e){Tf.subVectors(t,this.start),Ef.subVectors(this.end,this.start);const n=Ef.dot(Ef);let r=Ef.dot(Tf)/n;return e&&(r=Fn.clamp(r,0,1)),r}closestPointToPoint(t,e,n){const r=this.closestPointToPointParameter(t,e);return void 0===n&&(console.warn("THREE.Line3: .closestPointToPoint() target is now required"),n=new Yn),this.delta(n).multiplyScalar(r).add(this.start)}applyMatrix4(t){return this.start.applyMatrix4(t),this.end.applyMatrix4(t),this}equals(t){return t.start.equals(this.start)&&t.end.equals(this.end)}clone(){return(new this.constructor).copy(this)}}function Lf(t){Xr.call(this),this.material=t,this.render=function(){},this.hasPositions=!1,this.hasNormals=!1,this.hasColors=!1,this.hasUvs=!1,this.positionArray=null,this.normalArray=null,this.colorArray=null,this.uvArray=null,this.count=0}exports.Line3=Af,Lf.prototype=Object.create(Xr.prototype),Lf.prototype.constructor=Lf,Lf.prototype.isImmediateRenderObject=!0;const Rf=new Yn;class Cf extends Xr{constructor(t,e){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=e;const n=new ki,r=[0,0,0,0,0,1,0,0,0,1,0,1,0,0,0,-1,0,1,0,0,0,0,1,1,0,0,0,0,-1,1];for(let s=0,o=1,a=32;s<a;s++,o++){const t=s/a*Math.PI*2,e=o/a*Math.PI*2;r.push(Math.cos(t),Math.sin(t),1,Math.cos(e),Math.sin(e),1)}n.setAttribute("position",new Ci(r,3));const i=new ru({fog:!1,toneMapped:!1});this.cone=new pu(n,i),this.add(this.cone),this.update()}dispose(){this.cone.geometry.dispose(),this.cone.material.dispose()}update(){this.light.updateMatrixWorld();const t=this.light.distance?this.light.distance:1e3,e=t*Math.tan(this.light.angle);this.cone.scale.set(e,e,t),Rf.setFromMatrixPosition(this.light.target.matrixWorld),this.cone.lookAt(Rf),void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}exports.SpotLightHelper=Cf;const Pf=new Yn,Df=new wr,If=new wr;class Bf extends pu{constructor(t){const e=Nf(t),n=new ki,r=[],i=[],s=new xi(0,0,1),o=new xi(0,1,0);for(let a=0;a<e.length;a++){const t=e[a];t.parent&&t.parent.isBone&&(r.push(0,0,0),r.push(0,0,0),i.push(s.r,s.g,s.b),i.push(o.r,o.g,o.b))}n.setAttribute("position",new Ci(r,3)),n.setAttribute("color",new Ci(i,3)),super(n,new ru({vertexColors:!0,depthTest:!1,depthWrite:!1,toneMapped:!1,transparent:!0})),this.type="SkeletonHelper",this.isSkeletonHelper=!0,this.root=t,this.bones=e,this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1}updateMatrixWorld(t){const e=this.bones,n=this.geometry,r=n.getAttribute("position");If.copy(this.root.matrixWorld).invert();for(let i=0,s=0;i<e.length;i++){const t=e[i];t.parent&&t.parent.isBone&&(Df.multiplyMatrices(If,t.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s,Pf.x,Pf.y,Pf.z),Df.multiplyMatrices(If,t.parent.matrixWorld),Pf.setFromMatrixPosition(Df),r.setXYZ(s+1,Pf.x,Pf.y,Pf.z),s+=2)}n.getAttribute("position").needsUpdate=!0,super.updateMatrixWorld(t)}}function Nf(t){const e=[];t&&t.isBone&&e.push(t);for(let n=0;n<t.children.length;n++)e.push.apply(e,Nf(t.children[n]));return e}exports.SkeletonHelper=Bf;class Ff extends os{constructor(t,e,n){super(new Ep(e,4,2),new vi({wireframe:!0,fog:!1,toneMapped:!1})),this.light=t,this.light.updateMatrixWorld(),this.color=n,this.type="PointLightHelper",this.matrix=this.light.matrixWorld,this.matrixAutoUpdate=!1,this.update()}dispose(){this.geometry.dispose(),this.material.dispose()}update(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)}}exports.PointLightHelper=Ff;const Of=new Yn,zf=new xi,Gf=new xi;class Hf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n;const r=new bp(e);r.rotateY(.5*Math.PI),this.material=new vi({wireframe:!0,fog:!1,toneMapped:!1}),void 0===this.color&&(this.material.vertexColors=!0);const i=r.getAttribute("position"),s=new Float32Array(3*i.count);r.setAttribute("color",new bi(s,3)),this.add(new os(r,this.material)),this.update()}dispose(){this.children[0].geometry.dispose(),this.children[0].material.dispose()}update(){const t=this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{const e=t.geometry.getAttribute("color");zf.copy(this.light.color),Gf.copy(this.light.groundColor);for(let t=0,n=e.count;t<n;t++){const r=t<n/2?zf:Gf;e.setXYZ(t,r.r,r.g,r.b)}e.needsUpdate=!0}t.lookAt(Of.setFromMatrixPosition(this.light.matrixWorld).negate())}}exports.HemisphereLightHelper=Hf;class Uf extends pu{constructor(t=10,e=10,n=4473924,r=8947848){n=new xi(n),r=new xi(r);const i=e/2,s=t/e,o=t/2,a=[],l=[];for(let h=0,u=0,p=-o;h<=e;h++,p+=s){a.push(-o,0,p,o,0,p),a.push(p,0,-o,p,0,o);const t=h===i?n:r;t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3,t.toArray(l,u),u+=3}const c=new ki;c.setAttribute("position",new Ci(a,3)),c.setAttribute("color",new Ci(l,3)),super(c,new ru({vertexColors:!0,toneMapped:!1})),this.type="GridHelper"}}exports.GridHelper=Uf;class kf extends pu{constructor(t=10,e=16,n=8,r=64,i=4473924,s=8947848){i=new xi(i),s=new xi(s);const o=[],a=[];for(let c=0;c<=e;c++){const n=c/e*(2*Math.PI),r=Math.sin(n)*t,l=Math.cos(n)*t;o.push(0,0,0),o.push(r,0,l);const h=1&c?i:s;a.push(h.r,h.g,h.b),a.push(h.r,h.g,h.b)}for(let c=0;c<=n;c++){const e=1&c?i:s,l=t-t/n*c;for(let t=0;t<r;t++){let n=t/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l;o.push(i,0,s),a.push(e.r,e.g,e.b),n=(t+1)/r*(2*Math.PI),i=Math.sin(n)*l,s=Math.cos(n)*l,o.push(i,0,s),a.push(e.r,e.g,e.b)}}const l=new ki;l.setAttribute("position",new Ci(o,3)),l.setAttribute("color",new Ci(a,3)),super(l,new ru({vertexColors:!0,toneMapped:!1})),this.type="PolarGridHelper"}}exports.PolarGridHelper=kf;const Vf=new Yn,Wf=new Yn,jf=new Yn;class qf extends Xr{constructor(t,e,n){super(),this.light=t,this.light.updateMatrixWorld(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.color=n,void 0===e&&(e=1);let r=new ki;r.setAttribute("position",new Ci([-e,e,0,e,e,0,e,-e,0,-e,-e,0,-e,e,0],3));const i=new ru({fog:!1,toneMapped:!1});this.lightPlane=new cu(r,i),this.add(this.lightPlane),(r=new ki).setAttribute("position",new Ci([0,0,0,0,0,1],3)),this.targetLine=new cu(r,i),this.add(this.targetLine),this.update()}dispose(){this.lightPlane.geometry.dispose(),this.lightPlane.material.dispose(),this.targetLine.geometry.dispose(),this.targetLine.material.dispose()}update(){Vf.setFromMatrixPosition(this.light.matrixWorld),Wf.setFromMatrixPosition(this.light.target.matrixWorld),jf.subVectors(Wf,Vf),this.lightPlane.lookAt(Wf),void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color)),this.targetLine.lookAt(Wf),this.targetLine.scale.z=jf.length()}}exports.DirectionalLightHelper=qf;const Xf=new Yn,Yf=new gs;class Zf extends pu{constructor(t){const e=new ki,n=new ru({color:16777215,vertexColors:!0,toneMapped:!1}),r=[],i=[],s={},o=new xi(16755200),a=new xi(16711680),l=new xi(43775),c=new xi(16777215),h=new xi(3355443);function u(t,e,n){p(t,n),p(e,n)}function p(t,e){r.push(0,0,0),i.push(e.r,e.g,e.b),void 0===s[t]&&(s[t]=[]),s[t].push(r.length/3-1)}u("n1","n2",o),u("n2","n4",o),u("n4","n3",o),u("n3","n1",o),u("f1","f2",o),u("f2","f4",o),u("f4","f3",o),u("f3","f1",o),u("n1","f1",o),u("n2","f2",o),u("n3","f3",o),u("n4","f4",o),u("p","n1",a),u("p","n2",a),u("p","n3",a),u("p","n4",a),u("u1","u2",l),u("u2","u3",l),u("u3","u1",l),u("c","t",c),u("p","c",h),u("cn1","cn2",h),u("cn3","cn4",h),u("cf1","cf2",h),u("cf3","cf4",h),e.setAttribute("position",new Ci(r,3)),e.setAttribute("color",new Ci(i,3)),super(e,n),this.type="CameraHelper",this.camera=t,this.camera.updateProjectionMatrix&&this.camera.updateProjectionMatrix(),this.matrix=t.matrixWorld,this.matrixAutoUpdate=!1,this.pointMap=s,this.update()}update(){const t=this.geometry,e=this.pointMap;Yf.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse),Jf("c",e,t,Yf,0,0,-1),Jf("t",e,t,Yf,0,0,1),Jf("n1",e,t,Yf,-1,-1,-1),Jf("n2",e,t,Yf,1,-1,-1),Jf("n3",e,t,Yf,-1,1,-1),Jf("n4",e,t,Yf,1,1,-1),Jf("f1",e,t,Yf,-1,-1,1),Jf("f2",e,t,Yf,1,-1,1),Jf("f3",e,t,Yf,-1,1,1),Jf("f4",e,t,Yf,1,1,1),Jf("u1",e,t,Yf,.7,1.1,-1),Jf("u2",e,t,Yf,-.7,1.1,-1),Jf("u3",e,t,Yf,0,2,-1),Jf("cf1",e,t,Yf,-1,0,1),Jf("cf2",e,t,Yf,1,0,1),Jf("cf3",e,t,Yf,0,-1,1),Jf("cf4",e,t,Yf,0,1,1),Jf("cn1",e,t,Yf,-1,0,-1),Jf("cn2",e,t,Yf,1,0,-1),Jf("cn3",e,t,Yf,0,-1,-1),Jf("cn4",e,t,Yf,0,1,-1),t.getAttribute("position").needsUpdate=!0}}function Jf(t,e,n,r,i,s,o){Xf.set(i,s,o).unproject(r);const a=e[t];if(void 0!==a){const t=n.getAttribute("position");for(let e=0,n=a.length;e<n;e++)t.setXYZ(a[e],Xf.x,Xf.y,Xf.z)}}exports.CameraHelper=Zf;const Qf=new Qn;class Kf extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new Float32Array(24),i=new ki;i.setIndex(new bi(n,1)),i.setAttribute("position",new bi(r,3)),super(i,new ru({color:e,toneMapped:!1})),this.object=t,this.type="BoxHelper",this.matrixAutoUpdate=!1,this.update()}update(t){if(void 0!==t&&console.warn("THREE.BoxHelper: .update() has no longer arguments."),void 0!==this.object&&Qf.setFromObject(this.object),Qf.isEmpty())return;const e=Qf.min,n=Qf.max,r=this.geometry.attributes.position,i=r.array;i[0]=n.x,i[1]=n.y,i[2]=n.z,i[3]=e.x,i[4]=n.y,i[5]=n.z,i[6]=e.x,i[7]=e.y,i[8]=n.z,i[9]=n.x,i[10]=e.y,i[11]=n.z,i[12]=n.x,i[13]=n.y,i[14]=e.z,i[15]=e.x,i[16]=n.y,i[17]=e.z,i[18]=e.x,i[19]=e.y,i[20]=e.z,i[21]=n.x,i[22]=e.y,i[23]=e.z,r.needsUpdate=!0,this.geometry.computeBoundingSphere()}setFromObject(t){return this.object=t,this.update(),this}copy(t){return pu.prototype.copy.call(this,t),this.object=t.object,this}}exports.BoxHelper=Kf;class $f extends pu{constructor(t,e=16776960){const n=new Uint16Array([0,1,1,2,2,3,3,0,4,5,5,6,6,7,7,4,0,4,1,5,2,6,3,7]),r=new ki;r.setIndex(new bi(n,1)),r.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,-1,-1,1,-1,-1,-1,-1,1,-1,-1],3)),super(r,new ru({color:e,toneMapped:!1})),this.box=t,this.type="Box3Helper",this.geometry.computeBoundingSphere()}updateMatrixWorld(t){const e=this.box;e.isEmpty()||(e.getCenter(this.position),e.getSize(this.scale),this.scale.multiplyScalar(.5),super.updateMatrixWorld(t))}}exports.Box3Helper=$f;class tg extends cu{constructor(t,e=1,n=16776960){const r=n,i=new ki;i.setAttribute("position",new Ci([1,-1,1,-1,1,1,-1,-1,1,1,1,1,-1,1,1,-1,-1,1,1,-1,1,1,1,1,0,0,1,0,0,0],3)),i.computeBoundingSphere(),super(i,new ru({color:r,toneMapped:!1})),this.type="PlaneHelper",this.plane=t,this.size=e;const s=new ki;s.setAttribute("position",new Ci([1,1,1,-1,1,1,-1,-1,1,1,1,1,-1,-1,1,1,-1,1],3)),s.computeBoundingSphere(),this.add(new os(s,new vi({color:r,opacity:.2,transparent:!0,depthWrite:!1,toneMapped:!1})))}updateMatrixWorld(t){let e=-this.plane.constant;Math.abs(e)<1e-8&&(e=1e-8),this.scale.set(.5*this.size,.5*this.size,e),this.children[0].material.side=e<0?p:u,this.lookAt(this.plane.normal),super.updateMatrixWorld(t)}}exports.PlaneHelper=tg;const eg=new Yn;let ng,rg;class ig extends Xr{constructor(t=new Yn(0,0,1),e=new Yn(0,0,0),n=1,r=16776960,i=.2*n,s=.2*i){super(),this.type="ArrowHelper",void 0===ng&&((ng=new ki).setAttribute("position",new Ci([0,0,0,0,1,0],3)),(rg=new Eu(0,.5,1,5,1)).translate(0,-.5,0)),this.position.copy(e),this.line=new cu(ng,new ru({color:r,toneMapped:!1})),this.line.matrixAutoUpdate=!1,this.add(this.line),this.cone=new os(rg,new vi({color:r,toneMapped:!1})),this.cone.matrixAutoUpdate=!1,this.add(this.cone),this.setDirection(t),this.setLength(n,i,s)}setDirection(t){if(t.y>.99999)this.quaternion.set(0,0,0,1);else if(t.y<-.99999)this.quaternion.set(1,0,0,0);else{eg.set(t.z,0,-t.x).normalize();const e=Math.acos(t.y);this.quaternion.setFromAxisAngle(eg,e)}}setLength(t,e=.2*t,n=.2*e){this.line.scale.set(1,Math.max(1e-4,t-e),1),this.line.updateMatrix(),this.cone.scale.set(n,e,n),this.cone.position.y=t,this.cone.updateMatrix()}setColor(t){this.line.material.color.set(t),this.cone.material.color.set(t)}copy(t){return super.copy(t,!1),this.line.copy(t.line),this.cone.copy(t.cone),this}}exports.ArrowHelper=ig;class sg extends pu{constructor(t=1){const e=[0,0,0,t,0,0,0,0,0,0,t,0,0,0,0,0,0,t],n=new ki;n.setAttribute("position",new Ci(e,3)),n.setAttribute("color",new Ci([1,0,0,1,.6,0,0,1,0,.6,1,0,0,0,1,0,.6,1],3)),super(n,new ru({vertexColors:!0,toneMapped:!1})),this.type="AxesHelper"}}exports.AxesHelper=sg;const og=new Float32Array(1),ag=new Int32Array(og.buffer),lg={toHalfFloat:function(t){og[0]=t;const e=ag[0];let n=e>>16&32768,r=e>>12&2047;const i=e>>23&255;return i<103?n:i>142?(n|=31744,n|=(255==i?0:1)&&8388607&e):i<113?n|=((r|=2048)>>114-i)+(r>>113-i&1):(n|=i-112<<10|r>>1,n+=1&r)}};exports.DataUtils=lg;const cg=4,hg=8,ug=Math.pow(2,hg),pg=[.125,.215,.35,.446,.526,.582],dg=hg-cg+1+pg.length,mg=20,fg={[Xe]:0,[Ye]:1,[Je]:2,[Ke]:3,[$e]:4,[tn]:5,[Ze]:6},gg=new vi({side:p,depthWrite:!1,depthTest:!1}),xg=new os(new cs,gg),vg=new lm,{_lodPlanes:yg,_sizeLods:_g,_sigmas:bg}=Cg(),wg=new xi;let Mg=null;const Sg=(1+Math.sqrt(5))/2,Tg=1/Sg,Eg=[new Yn(1,1,1),new Yn(-1,1,1),new Yn(1,1,-1),new Yn(-1,1,-1),new Yn(0,Sg,Tg),new Yn(0,Sg,-Tg),new Yn(Tg,0,Sg),new Yn(-Tg,0,Sg),new Yn(Sg,Tg,0),new Yn(-Sg,Tg,0)];function Ag(t){const e=Math.max(t.r,t.g,t.b),n=Math.min(Math.max(Math.ceil(Math.log2(e)),-128),127);return t.multiplyScalar(Math.pow(2,-n)),(n+128)/255}class Lg{constructor(t){this._renderer=t,this._pingPongRenderTarget=null,this._blurMaterial=Ig(mg),this._equirectShader=null,this._cubemapShader=null,this._compileMaterial(this._blurMaterial)}fromScene(t,e=0,n=.1,r=100){Mg=this._renderer.getRenderTarget();const i=this._allocateTargets();return this._sceneToCubeUV(t,n,r,i),e>0&&this._blur(i,0,0,e),this._applyPMREM(i),this._cleanup(i),i}fromEquirectangular(t){return this._fromTexture(t)}fromCubemap(t){return this._fromTexture(t)}compileCubemapShader(){null===this._cubemapShader&&(this._cubemapShader=Ng(),this._compileMaterial(this._cubemapShader))}compileEquirectangularShader(){null===this._equirectShader&&(this._equirectShader=Bg(),this._compileMaterial(this._equirectShader))}dispose(){this._blurMaterial.dispose(),null!==this._cubemapShader&&this._cubemapShader.dispose(),null!==this._equirectShader&&this._equirectShader.dispose();for(let t=0;t<yg.length;t++)yg[t].dispose()}_cleanup(t){this._pingPongRenderTarget.dispose(),this._renderer.setRenderTarget(Mg),t.scissorTest=!1,Dg(t,0,0,t.width,t.height)}_fromTexture(t){Mg=this._renderer.getRenderTarget();const e=this._allocateTargets(t);return this._textureToCubeUV(t,e),this._applyPMREM(e),this._cleanup(e),e}_allocateTargets(t){const e={magFilter:ut,minFilter:ut,generateMipmaps:!1,type:bt,format:zt,encoding:Rg(t)?t.encoding:Je,depthBuffer:!1},n=Pg(e);return n.depthBuffer=!t,this._pingPongRenderTarget=Pg(e),n}_compileMaterial(t){const e=new os(yg[0],t);this._renderer.compile(e,vg)}_sceneToCubeUV(t,e,n,r){const i=new xs(90,1,e,n),s=[1,-1,1,1,1,1],o=[1,1,1,-1,-1,-1],a=this._renderer,l=a.autoClear,c=a.outputEncoding,h=a.toneMapping;a.getClearColor(wg),a.toneMapping=Z,a.outputEncoding=Xe,a.autoClear=!1;let u=!1;const p=t.background;if(p){if(p.isColor){gg.color.copy(p).convertSRGBToLinear(),t.background=null;const e=Ag(gg.color);gg.opacity=e,u=!0}}else{gg.color.copy(wg).convertSRGBToLinear();const t=Ag(gg.color);gg.opacity=t,u=!0}for(let d=0;d<6;d++){const e=d%3;0==e?(i.up.set(0,s[d],0),i.lookAt(o[d],0,0)):1==e?(i.up.set(0,0,s[d]),i.lookAt(0,o[d],0)):(i.up.set(0,s[d],0),i.lookAt(0,0,o[d])),Dg(r,e*ug,d>2?ug:0,ug,ug),a.setRenderTarget(r),u&&a.render(xg,i),a.render(t,i)}a.toneMapping=h,a.outputEncoding=c,a.autoClear=l}_textureToCubeUV(t,e){const n=this._renderer;t.isCubeTexture?null==this._cubemapShader&&(this._cubemapShader=Ng()):null==this._equirectShader&&(this._equirectShader=Bg());const r=t.isCubeTexture?this._cubemapShader:this._equirectShader,i=new os(yg[0],r),s=r.uniforms;s.envMap.value=t,t.isCubeTexture||s.texelSize.value.set(1/t.image.width,1/t.image.height),s.inputEncoding.value=fg[t.encoding],s.outputEncoding.value=fg[e.texture.encoding],Dg(e,0,0,3*ug,2*ug),n.setRenderTarget(e),n.render(i,vg)}_applyPMREM(t){const e=this._renderer,n=e.autoClear;e.autoClear=!1;for(let r=1;r<dg;r++){const e=Math.sqrt(bg[r]*bg[r]-bg[r-1]*bg[r-1]),n=Eg[(r-1)%Eg.length];this._blur(t,r-1,r,e,n)}e.autoClear=n}_blur(t,e,n,r,i){const s=this._pingPongRenderTarget;this._halfBlur(t,s,e,n,r,"latitudinal",i),this._halfBlur(s,t,n,n,r,"longitudinal",i)}_halfBlur(t,e,n,r,i,s,o){const a=this._renderer,l=this._blurMaterial;"latitudinal"!==s&&"longitudinal"!==s&&console.error("blur direction must be either latitudinal or longitudinal!");const c=new os(yg[r],l),h=l.uniforms,u=_g[n]-1,p=isFinite(i)?Math.PI/(2*u):2*Math.PI/(2*mg-1),d=i/p,m=isFinite(i)?1+Math.floor(3*d):mg;m>mg&&console.warn(`sigmaRadians, ${i}, is too large and will clip, as it requested ${m} samples when the maximum is set to ${mg}`);const f=[];let g=0;for(let v=0;v<mg;++v){const t=v/d,e=Math.exp(-t*t/2);f.push(e),0==v?g+=e:v<m&&(g+=2*e)}for(let v=0;v<f.length;v++)f[v]=f[v]/g;h.envMap.value=t.texture,h.samples.value=m,h.weights.value=f,h.latitudinal.value="latitudinal"===s,o&&(h.poleAxis.value=o),h.dTheta.value=p,h.mipInt.value=hg-n,h.inputEncoding.value=fg[t.texture.encoding],h.outputEncoding.value=fg[t.texture.encoding];const x=_g[r];Dg(e,3*Math.max(0,ug-2*x),(0===r?0:2*ug)+2*x*(r>hg-cg?r-hg+cg:0),3*x,2*x),a.setRenderTarget(e),a.render(c,vg)}}function Rg(t){return void 0!==t&&t.type===bt&&(t.encoding===Xe||t.encoding===Ye||t.encoding===Ze)}function Cg(){const t=[],e=[],n=[];let r=hg;for(let i=0;i<dg;i++){const s=Math.pow(2,r);e.push(s);let o=1/s;i>hg-cg?o=pg[i-hg+cg-1]:0==i&&(o=0),n.push(o);const a=1/(s-1),l=-a/2,c=1+a/2,h=[l,l,c,l,c,c,l,l,c,c,l,c],u=6,p=6,d=3,m=2,f=1,g=new Float32Array(d*p*u),x=new Float32Array(m*p*u),v=new Float32Array(f*p*u);for(let t=0;t<u;t++){const e=t%3*2/3-1,n=t>2?0:-1,r=[e,n,0,e+2/3,n,0,e+2/3,n+1,0,e,n,0,e+2/3,n+1,0,e,n+1,0];g.set(r,d*p*t),x.set(h,m*p*t);const i=[t,t,t,t,t,t];v.set(i,f*p*t)}const y=new ki;y.setAttribute("position",new bi(g,d)),y.setAttribute("uv",new bi(x,m)),y.setAttribute("faceIndex",new bi(v,f)),t.push(y),r>cg&&r--}return{_lodPlanes:t,_sizeLods:e,_sigmas:n}}function Pg(t){const e=new jn(3*ug,3*ug,t);return e.texture.mapping=ot,e.texture.name="PMREM.cubeUv",e.scissorTest=!0,e}function Dg(t,e,n,r,i){t.viewport.set(e,n,r,i),t.scissor.set(e,n,r,i)}function Ig(t){const e=new Float32Array(t),n=new Yn(0,1,0);return new Np({name:"SphericalGaussianBlur",defines:{n:t},uniforms:{envMap:{value:null},samples:{value:1},weights:{value:e},latitudinal:{value:!1},dTheta:{value:0},mipInt:{value:0},poleAxis:{value:n},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform int samples;\n\t\t\tuniform float weights[ n ];\n\t\t\tuniform bool latitudinal;\n\t\t\tuniform float dTheta;\n\t\t\tuniform float mipInt;\n\t\t\tuniform vec3 poleAxis;\n\n\t\t\t${Og()}\n\n\t\t\t#define ENVMAP_TYPE_CUBE_UV\n\t\t\t#include <cube_uv_reflection_fragment>\n\n\t\t\tvec3 getSample( float theta, vec3 axis ) {\n\n\t\t\t\tfloat cosTheta = cos( theta );\n\t\t\t\t// Rodrigues' axis-angle rotation\n\t\t\t\tvec3 sampleDirection = vOutputDirection * cosTheta\n\t\t\t\t\t+ cross( axis, vOutputDirection ) * sin( theta )\n\t\t\t\t\t+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );\n\n\t\t\t\treturn bilinearCubeUV( envMap, sampleDirection, mipInt );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );\n\n\t\t\t\tif ( all( equal( axis, vec3( 0.0 ) ) ) ) {\n\n\t\t\t\t\taxis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );\n\n\t\t\t\t}\n\n\t\t\t\taxis = normalize( axis );\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );\n\n\t\t\t\tfor ( int i = 1; i < n; i++ ) {\n\n\t\t\t\t\tif ( i >= samples ) {\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfloat theta = dTheta * float( i );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );\n\t\t\t\t\tgl_FragColor.rgb += weights[ i ] * getSample( theta, axis );\n\n\t\t\t\t}\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Bg(){const t=new On(1,1);return new Np({name:"EquirectangularToCubeUV",uniforms:{envMap:{value:null},texelSize:{value:t},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform sampler2D envMap;\n\t\t\tuniform vec2 texelSize;\n\n\t\t\t${Og()}\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\n\t\t\t\tvec3 outputDirection = normalize( vOutputDirection );\n\t\t\t\tvec2 uv = equirectUv( outputDirection );\n\n\t\t\t\tvec2 f = fract( uv / texelSize - 0.5 );\n\t\t\t\tuv -= f * texelSize;\n\t\t\t\tvec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x += texelSize.x;\n\t\t\t\tvec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.y += texelSize.y;\n\t\t\t\tvec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\t\t\t\tuv.x -= texelSize.x;\n\t\t\t\tvec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb;\n\n\t\t\t\tvec3 tm = mix( tl, tr, f.x );\n\t\t\t\tvec3 bm = mix( bl, br, f.x );\n\t\t\t\tgl_FragColor.rgb = mix( tm, bm, f.y );\n\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Ng(){return new Np({name:"CubemapToCubeUV",uniforms:{envMap:{value:null},inputEncoding:{value:fg[Xe]},outputEncoding:{value:fg[Xe]}},vertexShader:Fg(),fragmentShader:`\n\n\t\t\tprecision mediump float;\n\t\t\tprecision mediump int;\n\n\t\t\tvarying vec3 vOutputDirection;\n\n\t\t\tuniform samplerCube envMap;\n\n\t\t\t${Og()}\n\n\t\t\tvoid main() {\n\n\t\t\t\tgl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n\t\t\t\tgl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb;\n\t\t\t\tgl_FragColor = linearToOutputTexel( gl_FragColor );\n\n\t\t\t}\n\t\t`,blending:g,depthTest:!1,depthWrite:!1})}function Fg(){return"\n\n\t\tprecision mediump float;\n\t\tprecision mediump int;\n\n\t\tattribute vec3 position;\n\t\tattribute vec2 uv;\n\t\tattribute float faceIndex;\n\n\t\tvarying vec3 vOutputDirection;\n\n\t\t// RH coordinate system; PMREM face-indexing convention\n\t\tvec3 getDirection( vec2 uv, float face ) {\n\n\t\t\tuv = 2.0 * uv - 1.0;\n\n\t\t\tvec3 direction = vec3( uv, 1.0 );\n\n\t\t\tif ( face == 0.0 ) {\n\n\t\t\t\tdirection = direction.zyx; // ( 1, v, u ) pos x\n\n\t\t\t} else if ( face == 1.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xz *= -1.0; // ( -u, 1, -v ) pos y\n\n\t\t\t} else if ( face == 2.0 ) {\n\n\t\t\t\tdirection.x *= -1.0; // ( -u, v, 1 ) pos z\n\n\t\t\t} else if ( face == 3.0 ) {\n\n\t\t\t\tdirection = direction.zyx;\n\t\t\t\tdirection.xz *= -1.0; // ( -1, v, -u ) neg x\n\n\t\t\t} else if ( face == 4.0 ) {\n\n\t\t\t\tdirection = direction.xzy;\n\t\t\t\tdirection.xy *= -1.0; // ( -u, -1, v ) neg y\n\n\t\t\t} else if ( face == 5.0 ) {\n\n\t\t\t\tdirection.z *= -1.0; // ( u, v, -1 ) neg z\n\n\t\t\t}\n\n\t\t\treturn direction;\n\n\t\t}\n\n\t\tvoid main() {\n\n\t\t\tvOutputDirection = getDirection( uv, faceIndex );\n\t\t\tgl_Position = vec4( position, 1.0 );\n\n\t\t}\n\t"}function Og(){return"\n\n\t\tuniform int inputEncoding;\n\t\tuniform int outputEncoding;\n\n\t\t#include <encodings_pars_fragment>\n\n\t\tvec4 inputTexelToLinear( vec4 value ) {\n\n\t\t\tif ( inputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( inputEncoding == 1 ) {\n\n\t\t\t\treturn sRGBToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 2 ) {\n\n\t\t\t\treturn RGBEToLinear( value );\n\n\t\t\t} else if ( inputEncoding == 3 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 7.0 );\n\n\t\t\t} else if ( inputEncoding == 4 ) {\n\n\t\t\t\treturn RGBMToLinear( value, 16.0 );\n\n\t\t\t} else if ( inputEncoding == 5 ) {\n\n\t\t\t\treturn RGBDToLinear( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn GammaToLinear( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 linearToOutputTexel( vec4 value ) {\n\n\t\t\tif ( outputEncoding == 0 ) {\n\n\t\t\t\treturn value;\n\n\t\t\t} else if ( outputEncoding == 1 ) {\n\n\t\t\t\treturn LinearTosRGB( value );\n\n\t\t\t} else if ( outputEncoding == 2 ) {\n\n\t\t\t\treturn LinearToRGBE( value );\n\n\t\t\t} else if ( outputEncoding == 3 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 7.0 );\n\n\t\t\t} else if ( outputEncoding == 4 ) {\n\n\t\t\t\treturn LinearToRGBM( value, 16.0 );\n\n\t\t\t} else if ( outputEncoding == 5 ) {\n\n\t\t\t\treturn LinearToRGBD( value, 256.0 );\n\n\t\t\t} else {\n\n\t\t\t\treturn LinearToGamma( value, 2.2 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tvec4 envMapTexelToLinear( vec4 color ) {\n\n\t\t\treturn inputTexelToLinear( color );\n\n\t\t}\n\t"}exports.PMREMGenerator=Lg;const zg=0;exports.LineStrip=0;const Gg=1;exports.LinePieces=1;const Hg=0;exports.NoColors=0;const Ug=1;exports.FaceColors=1;const kg=2;function Vg(t){return console.warn("THREE.MeshFaceMaterial has been removed. Use an Array instead."),t}function Wg(t=[]){return console.warn("THREE.MultiMaterial has been removed. Use an Array instead."),t.isMultiMaterial=!0,t.materials=t,t.clone=function(){return t.slice()},t}function jg(t,e){return console.warn("THREE.PointCloud has been renamed to THREE.Points."),new yu(t,e)}function qg(t){return console.warn("THREE.Particle has been renamed to THREE.Sprite."),new Oh(t)}function Xg(t,e){return console.warn("THREE.ParticleSystem has been renamed to THREE.Points."),new yu(t,e)}function Yg(t){return console.warn("THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Zg(t){return console.warn("THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Jg(t){return console.warn("THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial."),new mu(t)}function Qg(t,e,n){return console.warn("THREE.Vertex has been removed. Use THREE.Vector3 instead."),new Yn(t,e,n)}function Kg(t,e){return console.warn("THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead."),new bi(t,e).setUsage(Mn)}function $g(t,e){return console.warn("THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead."),new wi(t,e)}function tx(t,e){return console.warn("THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead."),new Mi(t,e)}function ex(t,e){return console.warn("THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead."),new Si(t,e)}function nx(t,e){return console.warn("THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead."),new Ti(t,e)}function rx(t,e){return console.warn("THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead."),new Ei(t,e)}function ix(t,e){return console.warn("THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead."),new Ai(t,e)}function sx(t,e){return console.warn("THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead."),new Li(t,e)}function ox(t,e){return console.warn("THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead."),new Ci(t,e)}function ax(t,e){return console.warn("THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead."),new Pi(t,e)}function lx(t){return console.warn("THREE.AxisHelper has been renamed to THREE.AxesHelper."),new sg(t)}function cx(t,e){return console.warn("THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead."),new Kf(t,e)}function hx(t,e){return console.warn("THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead."),new pu(new Bu(t.geometry),new ru({color:void 0!==e?e:16777215}))}function ux(t,e){return console.warn("THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead."),new pu(new Dp(t.geometry),new ru({color:void 0!==e?e:16777215}))}function px(t){return console.warn("THREE.XHRLoader has been renamed to THREE.FileLoader."),new pd(t)}function dx(t){return console.warn("THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader."),new xd(t)}function mx(t,e,n){return console.warn("THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options )."),new ws(t,n)}function fx(){console.error("THREE.CanvasRenderer has been removed")}function gx(){console.error("THREE.JSONLoader has been removed.")}exports.VertexColors=2,yd.create=function(t,e){return console.log("THREE.Curve.create() has been deprecated"),t.prototype=Object.create(yd.prototype),t.prototype.constructor=t,t.prototype.getPoint=e,t},Xd.prototype.fromPoints=function(t){return console.warn("THREE.Path: .fromPoints() has been renamed to .setFromPoints()."),this.setFromPoints(t)},Uf.prototype.setColors=function(){console.error("THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.")},Bf.prototype.update=function(){console.error("THREE.SkeletonHelper: update() no longer needs to be called.")},hd.prototype.extractUrlBase=function(t){return console.warn("THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead."),gm.extractUrlBase(t)},hd.Handlers={add:function(){console.error("THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.")},get:function(){console.error("THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.")}},Sf.prototype.center=function(t){return console.warn("THREE.Box2: .center() has been renamed to .getCenter()."),this.getCenter(t)},Sf.prototype.empty=function(){return console.warn("THREE.Box2: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Sf.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Sf.prototype.size=function(t){return console.warn("THREE.Box2: .size() has been renamed to .getSize()."),this.getSize(t)},Qn.prototype.center=function(t){return console.warn("THREE.Box3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Qn.prototype.empty=function(){return console.warn("THREE.Box3: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Qn.prototype.isIntersectionBox=function(t){return console.warn("THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},Qn.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},Qn.prototype.size=function(t){return console.warn("THREE.Box3: .size() has been renamed to .getSize()."),this.getSize(t)},dr.prototype.empty=function(){return console.warn("THREE.Sphere: .empty() has been renamed to .isEmpty()."),this.isEmpty()},Es.prototype.setFromMatrix=function(t){return console.warn("THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix()."),this.setFromProjectionMatrix(t)},Af.prototype.center=function(t){return console.warn("THREE.Line3: .center() has been renamed to .getCenter()."),this.getCenter(t)},Fn.random16=function(){return console.warn("THREE.Math: .random16() has been deprecated. Use Math.random() instead."),Math.random()},Fn.nearestPowerOfTwo=function(t){return console.warn("THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo()."),Fn.floorPowerOfTwo(t)},Fn.nextPowerOfTwo=function(t){return console.warn("THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo()."),Fn.ceilPowerOfTwo(t)},zn.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},zn.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix3: .multiplyVector3Array() has been removed.")},zn.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead."),t.applyMatrix3(this)},zn.prototype.applyToVector3Array=function(){console.error("THREE.Matrix3: .applyToVector3Array() has been removed.")},zn.prototype.getInverse=function(t){return console.warn("THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},wr.prototype.extractPosition=function(t){return console.warn("THREE.Matrix4: .extractPosition() has been renamed to .copyPosition()."),this.copyPosition(t)},wr.prototype.flattenToArrayOffset=function(t,e){return console.warn("THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead."),this.toArray(t,e)},wr.prototype.getPosition=function(){return console.warn("THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead."),(new Yn).setFromMatrixColumn(this,3)},wr.prototype.setRotationFromQuaternion=function(t){return console.warn("THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion()."),this.makeRotationFromQuaternion(t)},wr.prototype.multiplyToArray=function(){console.warn("THREE.Matrix4: .multiplyToArray() has been removed.")},wr.prototype.multiplyVector3=function(t){return console.warn("THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector4=function(t){return console.warn("THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.multiplyVector3Array=function(){console.error("THREE.Matrix4: .multiplyVector3Array() has been removed.")},wr.prototype.rotateAxis=function(t){console.warn("THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead."),t.transformDirection(this)},wr.prototype.crossVector=function(t){return console.warn("THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.translate=function(){console.error("THREE.Matrix4: .translate() has been removed.")},wr.prototype.rotateX=function(){console.error("THREE.Matrix4: .rotateX() has been removed.")},wr.prototype.rotateY=function(){console.error("THREE.Matrix4: .rotateY() has been removed.")},wr.prototype.rotateZ=function(){console.error("THREE.Matrix4: .rotateZ() has been removed.")},wr.prototype.rotateByAxis=function(){console.error("THREE.Matrix4: .rotateByAxis() has been removed.")},wr.prototype.applyToBufferAttribute=function(t){return console.warn("THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead."),t.applyMatrix4(this)},wr.prototype.applyToVector3Array=function(){console.error("THREE.Matrix4: .applyToVector3Array() has been removed.")},wr.prototype.makeFrustum=function(t,e,n,r,i,s){return console.warn("THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead."),this.makePerspective(t,e,r,n,i,s)},wr.prototype.getInverse=function(t){return console.warn("THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead."),this.copy(t).invert()},Qr.prototype.isIntersectionLine=function(t){return console.warn("THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine()."),this.intersectsLine(t)},Xn.prototype.multiplyVector3=function(t){return console.warn("THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead."),t.applyQuaternion(this)},Xn.prototype.inverse=function(){return console.warn("THREE.Quaternion: .inverse() has been renamed to invert()."),this.invert()},br.prototype.isIntersectionBox=function(t){return console.warn("THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox()."),this.intersectsBox(t)},br.prototype.isIntersectionPlane=function(t){return console.warn("THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane()."),this.intersectsPlane(t)},br.prototype.isIntersectionSphere=function(t){return console.warn("THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere()."),this.intersectsSphere(t)},li.prototype.area=function(){return console.warn("THREE.Triangle: .area() has been renamed to .getArea()."),this.getArea()},li.prototype.barycoordFromPoint=function(t,e){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),this.getBarycoord(t,e)},li.prototype.midpoint=function(t){return console.warn("THREE.Triangle: .midpoint() has been renamed to .getMidpoint()."),this.getMidpoint(t)},li.prototypenormal=function(t){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),this.getNormal(t)},li.prototype.plane=function(t){return console.warn("THREE.Triangle: .plane() has been renamed to .getPlane()."),this.getPlane(t)},li.barycoordFromPoint=function(t,e,n,r,i){return console.warn("THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord()."),li.getBarycoord(t,e,n,r,i)},li.normal=function(t,e,n,r){return console.warn("THREE.Triangle: .normal() has been renamed to .getNormal()."),li.getNormal(t,e,n,r)},Yd.prototype.extractAllPoints=function(t){return console.warn("THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead."),this.extractPoints(t)},Yd.prototype.extrude=function(t){return console.warn("THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead."),new gp(this,t)},Yd.prototype.makeGeometry=function(t){return console.warn("THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead."),new Sp(this,t)},On.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},On.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},On.prototype.lengthManhattan=function(){return console.warn("THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Yn.prototype.setEulerFromRotationMatrix=function(){console.error("THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.")},Yn.prototype.setEulerFromQuaternion=function(){console.error("THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.")},Yn.prototype.getPositionFromMatrix=function(t){return console.warn("THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition()."),this.setFromMatrixPosition(t)},Yn.prototype.getScaleFromMatrix=function(t){return console.warn("THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale()."),this.setFromMatrixScale(t)},Yn.prototype.getColumnFromMatrix=function(t,e){return console.warn("THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn()."),this.setFromMatrixColumn(e,t)},Yn.prototype.applyProjection=function(t){return console.warn("THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead."),this.applyMatrix4(t)},Yn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Yn.prototype.distanceToManhattan=function(t){return console.warn("THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo()."),this.manhattanDistanceTo(t)},Yn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Wn.prototype.fromAttribute=function(t,e,n){return console.warn("THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute()."),this.fromBufferAttribute(t,e,n)},Wn.prototype.lengthManhattan=function(){return console.warn("THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength()."),this.manhattanLength()},Xr.prototype.getChildByName=function(t){return console.warn("THREE.Object3D: .getChildByName() has been renamed to .getObjectByName()."),this.getObjectByName(t)},Xr.prototype.renderDepth=function(){console.warn("THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.")},Xr.prototype.translate=function(t,e){return console.warn("THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead."),this.translateOnAxis(e,t)},Xr.prototype.getWorldRotation=function(){console.error("THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.")},Xr.prototype.applyMatrix=function(t){return console.warn("THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(Xr.prototype,{eulerOrder:{get:function(){return console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order},set:function(t){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order."),this.rotation.order=t}},useQuaternion:{get:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")},set:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")}}}),os.prototype.setDrawMode=function(){console.error("THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")},Object.defineProperties(os.prototype,{drawMode:{get:function(){return console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode."),0},set:function(){console.error("THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.")}}}),Object.defineProperties(Uh.prototype,{objects:{get:function(){return console.warn("THREE.LOD: .objects has been renamed to .levels."),this.levels}}}),Object.defineProperty(Qh.prototype,"useVertexTexture",{get:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")},set:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")}}),Xh.prototype.initBones=function(){console.error("THREE.SkinnedMesh: initBones() has been removed.")},Object.defineProperty(yd.prototype,"__arcLengthDivisions",{get:function(){return console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions},set:function(t){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions."),this.arcLengthDivisions=t}}),xs.prototype.setLens=function(t,e){console.warn("THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup."),void 0!==e&&(this.filmGauge=e),this.setFocalLength(t)},Object.defineProperties(Zd.prototype,{onlyShadow:{set:function(){console.warn("THREE.Light: .onlyShadow has been removed.")}},shadowCameraFov:{set:function(t){console.warn("THREE.Light: .shadowCameraFov is now .shadow.camera.fov."),this.shadow.camera.fov=t}},shadowCameraLeft:{set:function(t){console.warn("THREE.Light: .shadowCameraLeft is now .shadow.camera.left."),this.shadow.camera.left=t}},shadowCameraRight:{set:function(t){console.warn("THREE.Light: .shadowCameraRight is now .shadow.camera.right."),this.shadow.camera.right=t}},shadowCameraTop:{set:function(t){console.warn("THREE.Light: .shadowCameraTop is now .shadow.camera.top."),this.shadow.camera.top=t}},shadowCameraBottom:{set:function(t){console.warn("THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom."),this.shadow.camera.bottom=t}},shadowCameraNear:{set:function(t){console.warn("THREE.Light: .shadowCameraNear is now .shadow.camera.near."),this.shadow.camera.near=t}},shadowCameraFar:{set:function(t){console.warn("THREE.Light: .shadowCameraFar is now .shadow.camera.far."),this.shadow.camera.far=t}},shadowCameraVisible:{set:function(){console.warn("THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.")}},shadowBias:{set:function(t){console.warn("THREE.Light: .shadowBias is now .shadow.bias."),this.shadow.bias=t}},shadowDarkness:{set:function(){console.warn("THREE.Light: .shadowDarkness has been removed.")}},shadowMapWidth:{set:function(t){console.warn("THREE.Light: .shadowMapWidth is now .shadow.mapSize.width."),this.shadow.mapSize.width=t}},shadowMapHeight:{set:function(t){console.warn("THREE.Light: .shadowMapHeight is now .shadow.mapSize.height."),this.shadow.mapSize.height=t}}}),Object.defineProperties(bi.prototype,{length:{get:function(){return console.warn("THREE.BufferAttribute: .length has been deprecated. Use .count instead."),this.array.length}},dynamic:{get:function(){return console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.usage===Mn},set:function(){console.warn("THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead."),this.setUsage(Mn)}}}),bi.prototype.setDynamic=function(t){return console.warn("THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},bi.prototype.copyIndicesArray=function(){console.error("THREE.BufferAttribute: .copyIndicesArray() has been removed.")},bi.prototype.setArray=function(){console.error("THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},ki.prototype.addIndex=function(t){console.warn("THREE.BufferGeometry: .addIndex() has been renamed to .setIndex()."),this.setIndex(t)},ki.prototype.addAttribute=function(t,e){return console.warn("THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute()."),e&&e.isBufferAttribute||e&&e.isInterleavedBufferAttribute?"index"===t?(console.warn("THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute."),this.setIndex(e),this):this.setAttribute(t,e):(console.warn("THREE.BufferGeometry: .addAttribute() now expects ( name, attribute )."),this.setAttribute(t,new bi(arguments[1],arguments[2])))},ki.prototype.addDrawCall=function(t,e,n){void 0!==n&&console.warn("THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset."),console.warn("THREE.BufferGeometry: .addDrawCall() is now .addGroup()."),this.addGroup(t,e)},ki.prototype.clearDrawCalls=function(){console.warn("THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups()."),this.clearGroups()},ki.prototype.computeOffsets=function(){console.warn("THREE.BufferGeometry: .computeOffsets() has been removed.")},ki.prototype.removeAttribute=function(t){return console.warn("THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute()."),this.deleteAttribute(t)},ki.prototype.applyMatrix=function(t){return console.warn("THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4()."),this.applyMatrix4(t)},Object.defineProperties(ki.prototype,{drawcalls:{get:function(){return console.error("THREE.BufferGeometry: .drawcalls has been renamed to .groups."),this.groups}},offsets:{get:function(){return console.warn("THREE.BufferGeometry: .offsets has been renamed to .groups."),this.groups}}}),Object.defineProperties(xm.prototype,{maxInstancedCount:{get:function(){return console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount},set:function(t){console.warn("THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount."),this.instanceCount=t}}}),Object.defineProperties(vf.prototype,{linePrecision:{get:function(){return console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold},set:function(t){console.warn("THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead."),this.params.Line.threshold=t}}}),Object.defineProperties(_h.prototype,{dynamic:{get:function(){return console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.usage===Mn},set:function(t){console.warn("THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead."),this.setUsage(t)}}}),_h.prototype.setDynamic=function(t){return console.warn("THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead."),this.setUsage(!0===t?Mn:wn),this},_h.prototype.setArray=function(){console.error("THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers")},gp.prototype.getArrays=function(){console.error("THREE.ExtrudeGeometry: .getArrays() has been removed.")},gp.prototype.addShapeList=function(){console.error("THREE.ExtrudeGeometry: .addShapeList() has been removed.")},gp.prototype.addShape=function(){console.error("THREE.ExtrudeGeometry: .addShape() has been removed.")},yh.prototype.dispose=function(){console.error("THREE.Scene: .dispose() has been removed.")},Object.defineProperties(ff.prototype,{dynamic:{set:function(){console.warn("THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.")}},onUpdate:{value:function(){return console.warn("THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead."),this}}}),Object.defineProperties(hi.prototype,{wrapAround:{get:function(){console.warn("THREE.Material: .wrapAround has been removed.")},set:function(){console.warn("THREE.Material: .wrapAround has been removed.")}},overdraw:{get:function(){console.warn("THREE.Material: .overdraw has been removed.")},set:function(){console.warn("THREE.Material: .overdraw has been removed.")}},wrapRGB:{get:function(){return console.warn("THREE.Material: .wrapRGB has been removed."),new xi}},shading:{get:function(){console.error("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")},set:function(t){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===t}},stencilMask:{get:function(){return console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask},set:function(t){console.warn("THREE."+this.type+": .stencilMask has been removed. Use .stencilFuncMask instead."),this.stencilFuncMask=t}}}),Object.defineProperties(zp.prototype,{metal:{get:function(){return console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead."),!1},set:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead")}}}),Object.defineProperties(Op.prototype,{transparency:{get:function(){return console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission},set:function(t){console.warn("THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission."),this.transmission=t}}}),Object.defineProperties(fs.prototype,{derivatives:{get:function(){return console.warn("THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives},set:function(t){console.warn("THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives."),this.extensions.derivatives=t}}}),fh.prototype.clearTarget=function(t,e,n,r){console.warn("THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead."),this.setRenderTarget(t),this.clear(e,n,r)},fh.prototype.animate=function(t){console.warn("THREE.WebGLRenderer: .animate() is now .setAnimationLoop()."),this.setAnimationLoop(t)},fh.prototype.getCurrentRenderTarget=function(){return console.warn("THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget()."),this.getRenderTarget()},fh.prototype.getMaxAnisotropy=function(){return console.warn("THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy()."),this.capabilities.getMaxAnisotropy()},fh.prototype.getPrecision=function(){return console.warn("THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision."),this.capabilities.precision},fh.prototype.resetGLState=function(){return console.warn("THREE.WebGLRenderer: .resetGLState() is now .state.reset()."),this.state.reset()},fh.prototype.supportsFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' )."),this.extensions.get("OES_texture_float")},fh.prototype.supportsHalfFloatTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' )."),this.extensions.get("OES_texture_half_float")},fh.prototype.supportsStandardDerivatives=function(){return console.warn("THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' )."),this.extensions.get("OES_standard_derivatives")},fh.prototype.supportsCompressedTextureS3TC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' )."),this.extensions.get("WEBGL_compressed_texture_s3tc")},fh.prototype.supportsCompressedTexturePVRTC=function(){return console.warn("THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' )."),this.extensions.get("WEBGL_compressed_texture_pvrtc")},fh.prototype.supportsBlendMinMax=function(){return console.warn("THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' )."),this.extensions.get("EXT_blend_minmax")},fh.prototype.supportsVertexTextures=function(){return console.warn("THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures."),this.capabilities.vertexTextures},fh.prototype.supportsInstancedArrays=function(){return console.warn("THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' )."),this.extensions.get("ANGLE_instanced_arrays")},fh.prototype.enableScissorTest=function(t){console.warn("THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest()."),this.setScissorTest(t)},fh.prototype.initMaterial=function(){console.warn("THREE.WebGLRenderer: .initMaterial() has been removed.")},fh.prototype.addPrePlugin=function(){console.warn("THREE.WebGLRenderer: .addPrePlugin() has been removed.")},fh.prototype.addPostPlugin=function(){console.warn("THREE.WebGLRenderer: .addPostPlugin() has been removed.")},fh.prototype.updateShadowMap=function(){console.warn("THREE.WebGLRenderer: .updateShadowMap() has been removed.")},fh.prototype.setFaceCulling=function(){console.warn("THREE.WebGLRenderer: .setFaceCulling() has been removed.")},fh.prototype.allocTextureUnit=function(){console.warn("THREE.WebGLRenderer: .allocTextureUnit() has been removed.")},fh.prototype.setTexture=function(){console.warn("THREE.WebGLRenderer: .setTexture() has been removed.")},fh.prototype.setTexture2D=function(){console.warn("THREE.WebGLRenderer: .setTexture2D() has been removed.")},fh.prototype.setTextureCube=function(){console.warn("THREE.WebGLRenderer: .setTextureCube() has been removed.")},fh.prototype.getActiveMipMapLevel=function(){return console.warn("THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel()."),this.getActiveMipmapLevel()},Object.defineProperties(fh.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled."),this.shadowMap.enabled=t}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(t){console.warn("THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type."),this.shadowMap.type=t}},shadowMapCullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.")}},context:{get:function(){return console.warn("THREE.WebGLRenderer: .context has been removed. Use .getContext() instead."),this.getContext()}},vr:{get:function(){return console.warn("THREE.WebGLRenderer: .vr has been renamed to .xr"),this.xr}},gammaInput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead."),!1},set:function(){console.warn("THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.")}},gammaOutput:{get:function(){return console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),!1},set:function(t){console.warn("THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead."),this.outputEncoding=!0===t?Ye:Xe}},toneMappingWhitePoint:{get:function(){return console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed."),1},set:function(){console.warn("THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.")}}}),Object.defineProperties(sh.prototype,{cullFace:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.")}},renderReverseSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.")}},renderSingleSided:{get:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")},set:function(){console.warn("THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.")}}}),Object.defineProperties(jn.prototype,{wrapS:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS."),this.texture.wrapS=t}},wrapT:{get:function(){return console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT},set:function(t){console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT."),this.texture.wrapT=t}},magFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter."),this.texture.magFilter=t}},minFilter:{get:function(){return console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter},set:function(t){console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter."),this.texture.minFilter=t}},anisotropy:{get:function(){return console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy},set:function(t){console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy."),this.texture.anisotropy=t}},offset:{get:function(){return console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset},set:function(t){console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset."),this.texture.offset=t}},repeat:{get:function(){return console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat},set:function(t){console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat."),this.texture.repeat=t}},format:{get:function(){return console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format},set:function(t){console.warn("THREE.WebGLRenderTarget: .format is now .texture.format."),this.texture.format=t}},type:{get:function(){return console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type},set:function(t){console.warn("THREE.WebGLRenderTarget: .type is now .texture.type."),this.texture.type=t}},generateMipmaps:{get:function(){return console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps},set:function(t){console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps."),this.texture.generateMipmaps=t}}}),Object.defineProperties(jm.prototype,{load:{value:function(t){console.warn("THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.");const e=this;return(new Dm).load(t,function(t){e.setBuffer(t)}),this}},startTime:{set:function(){console.warn("THREE.Audio: .startTime is now .play( delay ).")}}}),Qm.prototype.getData=function(){return console.warn("THREE.AudioAnalyser: .getData() is now .getFrequencyData()."),this.getFrequencyData()},_s.prototype.updateCubeMap=function(t,e){return console.warn("THREE.CubeCamera: .updateCubeMap() is now .update()."),this.update(t,e)},_s.prototype.clear=function(t,e,n,r){return console.warn("THREE.CubeCamera: .clear() is now .renderTarget.clear()."),this.renderTarget.clear(t,e,n,r)},Hn.crossOrigin=void 0,Hn.loadTexture=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.");const i=new vd;i.setCrossOrigin(this.crossOrigin);const s=i.load(t,n,void 0,r);return e&&(s.mapping=e),s},Hn.loadTextureCube=function(t,e,n,r){console.warn("THREE.ImageUtils.loadTextureCube has been deprecated. 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@@ -538,21 +538,21 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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Consider increasing maxDepth.")),console.warn(this,r))),a<=w||v>=p)return t.offset=e,t.count=a,t;var c=h(t.boundingData,o,f,s,e,a,m);if(-1===c.axis)return t.offset=e,t.count=a,t;var g=y(l,f,s,e,a,c);if(g===e||g===e+a)t.offset=e,t.count=a;else{t.splitAxis=c.axis;var x=new n.default,A=e,D=g-e;t.left=x,x.boundingData=new Float32Array(6),d(f,A,D,x.boundingData,u),i(x,A,D,u,v+1);var B=new n.default,S=g,_=a-D;t.right=B,B.boundingData=new Float32Array(6),d(f,S,_,B.boundingData,u),i(B,S,_,u,v+1)}return t}v(r);var u=new Float32Array(6),f=A(r),s=a.strategy===e.SAH?x(f):null,l=r.index.array,p=a.maxDepth,b=a.verbose,w=a.maxLeafTris,m=a.strategy,E=!1,D=[],B=c(r);if(1===B.length){var S=new n.default,_=B[0];null!=r.boundingBox?(S.boundingData=(0,t.boxToArray)(r.boundingBox),g(f,_.offset,_.count,u)):(S.boundingData=new Float32Array(6),d(f,_.offset,_.count,S.boundingData,u)),i(S,_.offset,_.count,u),D.push(S)}else{var F,M=o(B);try{for(M.s();!(F=M.n()).done;){var T=F.value,I=new n.default;I.boundingData=new Float32Array(6),d(f,T.offset,T.count,I.boundingData,u),i(I,T.offset,T.count,u),D.push(I)}}catch(j){M.e(j)}finally{M.f()}}return D}var w=32;exports.BYTES_PER_NODE=w;var m=65535;function E(r,n){for(var t,e,a,o=b(r,n),i=[],u=0;u<o.length;u++){var f=o[u],s=v(f),l=new ArrayBuffer(w*s);t=new Float32Array(l),e=new Uint32Array(l),a=new Uint16Array(l),c(0,f),i.push(l)}return i;function v(r){return r.count?1:1+v(r.left)+v(r.right)}function c(r,n){for(var o=r/4,i=r/2,u=!!n.count,f=n.boundingData,s=0;s<6;s++)t[o+s]=f[s];if(u){var l=n.offset,v=n.count;return e[o+6]=l,a[i+14]=v,a[i+15]=m,r+w}var d,g=n.left,y=n.right,h=n.splitAxis;if((d=c(r+w,g))/4>Math.pow(2,32))throw new Error("MeshBVH: Cannot store child pointer greater than 32 bits.");return e[o+6]=d/4,d=c(d,y),e[o+7]=h,d}}exports.IS_LEAFNODE_FLAG=m;
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 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.areIntersecting=exports.SeparatingAxisBounds=void 0;var t=require("three");function r(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function e(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function n(t,r,n){return r&&e(t.prototype,r),n&&e(t,n),t}var a=function(){function t(){r(this,t),this.min=1/0,this.max=-1/0}return n(t,[{key:"setFromPointsField",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=t.length;a<i;a++){var o=t[a][r];e=Math.min(o,e),n=Math.max(o,n)}this.min=e,this.max=n}},{key:"setFromPoints",value:function(t,r){for(var e=1/0,n=-1/0,a=0,i=r.length;a<i;a++){var o=r[a],s=t.dot(o);e=Math.min(s,e),n=Math.max(s,n)}this.min=e,this.max=n}},{key:"isSeparated",value:function(t){return this.min>t.max||t.min>this.max}}]),t}();exports.SeparatingAxisBounds=a,a.prototype.setFromBox=function(){var r=new t.Vector3;return function(t,e){for(var n=e.min,a=e.max,i=1/0,o=-1/0,s=0;s<=1;s++)for(var u=0;u<=1;u++)for(var f=0;f<=1;f++){r.x=n.x*s+a.x*(1-s),r.y=n.y*u+a.y*(1-u),r.z=n.z*f+a.z*(1-f);var m=t.dot(r);i=Math.min(m,i),o=Math.max(m,o)}this.min=i,this.max=o}}();var i=function(){var t=new a;return function(r,e){for(var n=r.points,a=r.satAxes,i=r.satBounds,o=e.points,s=e.satAxes,u=e.satBounds,f=0;f<3;f++){var m=i[f],v=a[f];if(t.setFromPoints(v,o),m.isSeparated(t))return!1}for(var c=0;c<3;c++){var x=u[c],h=s[c];if(t.setFromPoints(h,n),x.isSeparated(t))return!1}}}();exports.areIntersecting=i;
 },{"three":"dKqR"}],"gld0":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.sphereIntersectTriangle=exports.closestPointsSegmentToSegment=exports.closestPointLineToLine=void 0;var t=require("three"),e=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Vector3;return function(t,r,s){var i=t.start,a=e,c=r.start,d=o;n.subVectors(i,c),e.subVectors(t.end,r.start),o.subVectors(r.end,r.start);var u,P,v=n.dot(d),T=d.dot(a),l=d.dot(d),f=n.dot(a),p=a.dot(a)*l-T*T;P=(v+(u=0!==p?(v*T-f*l)/p:0)*T)/l,s.x=u,s.y=P}}();exports.closestPointLineToLine=e;var o=function(){var o=new t.Vector2,n=new t.Vector3,r=new t.Vector3;return function(t,s,i,a){e(t,s,o);var c,d,u=o.x,P=o.y;if(u>=0&&u<=1&&P>=0&&P<=1)return t.at(u,i),void s.at(P,a);if(u>=0&&u<=1)return P<0?s.at(0,a):s.at(1,a),void t.closestPointToPoint(a,!0,i);if(P>=0&&P<=1)return u<0?t.at(0,i):t.at(1,i),void s.closestPointToPoint(i,!0,a);c=u<0?t.start:t.end,d=P<0?s.start:s.end;var v=n,T=r;return t.closestPointToPoint(d,!0,n),s.closestPointToPoint(c,!0,r),v.distanceToSquared(d)<=T.distanceToSquared(c)?(i.copy(v),void a.copy(d)):(i.copy(c),void a.copy(T))}}();exports.closestPointsSegmentToSegment=o;var n=function(){var e=new t.Vector3,o=new t.Vector3,n=new t.Plane,r=new t.Line3;return function(t,s){var i=t.radius,a=t.center,c=s.a,d=s.b,u=s.c;if(r.start=c,r.end=d,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=c,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;if(r.start=d,r.end=u,r.closestPointToPoint(a,!0,e).distanceTo(a)<=i)return!0;var P=s.getPlane(n);if(Math.abs(P.distanceToPoint(a))<=i){var v=P.projectPoint(a,o);if(s.containsPoint(v))return!0}return!1}}();exports.sphereIntersectTriangle=n;
 },{"three":"dKqR"}],"HHjx":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),r=require("./MathUtilities.js");function n(t){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,e,r){return e&&i(t.prototype,e),r&&i(t,r),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var r,n=h(t);if(e){var o=h(this).constructor;r=Reflect.construct(n,arguments,o)}else r=n.apply(this,arguments);return p(this,r)}}function p(t,e){return!e||"object"!==n(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(n){a(c,t.Triangle);var i=u(c);function c(){var r;o(this,c);for(var n=arguments.length,s=new Array(n),a=0;a<n;a++)s[a]=arguments[a];return(r=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,r.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),r.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),r.points=[r.a,r.b,r.c],r.sphere=new t.Sphere,r.needsUpdate=!1,r}return s(c,[{key:"intersectsSphere",value:function(t){return(0,r.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,r=this.b,n=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,r),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(r,n),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(n,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,n=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,r.closestPointsSegmentToSegment)(o,t,e,n),(a=e.distanceToSquared(n))<f&&(f=a,i&&i.copy(e),s&&s.copy(n))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var r=new y,n=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(r.copy(t),r.update(),t=r);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;n[0]=this.a,n[1]=this.b,n[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,n),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,n),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,n=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,n),this.closestPointToPoint(n,e),a&&a.copy(e),c&&c.copy(n)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,r.closestPointsSegmentToSegment)(i,s,e,n);var T=e.distanceToSquared(n);T<u&&(u=T,a&&a.copy(e),c&&c.copy(n))}}return Math.sqrt(u)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.SeparatingAxisTriangle=void 0;var t=require("three"),e=require("./SeparatingAxisBounds.js"),n=require("./MathUtilities.js");function r(t){return(r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function i(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function s(t,e,n){return e&&i(t.prototype,e),n&&i(t,n),t}function a(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&c(t,e)}function c(t,e){return(c=Object.setPrototypeOf||function(t,e){return t.__proto__=e,t})(t,e)}function u(t){var e=l();return function(){var n,r=h(t);if(e){var o=h(this).constructor;n=Reflect.construct(r,arguments,o)}else n=r.apply(this,arguments);return p(this,n)}}function p(t,e){return!e||"object"!==r(e)&&"function"!=typeof e?f(t):e}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function h(t){return(h=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var y=function(r){a(c,t.Triangle);var i=u(c);function c(){var n;o(this,c);for(var r=arguments.length,s=new Array(r),a=0;a<r;a++)s[a]=arguments[a];return(n=i.call.apply(i,[this].concat(s))).isSeparatingAxisTriangle=!0,n.satAxes=new Array(4).fill().map(function(){return new t.Vector3}),n.satBounds=new Array(4).fill().map(function(){return new e.SeparatingAxisBounds}),n.points=[n.a,n.b,n.c],n.sphere=new t.Sphere,n.needsUpdate=!1,n}return s(c,[{key:"intersectsSphere",value:function(t){return(0,n.sphereIntersectTriangle)(t,this)}}]),c}();exports.SeparatingAxisTriangle=y,y.prototype.update=function(){var t=new Array(3);return function(){var e=this.a,n=this.b,r=this.c;t[0]=this.a,t[1]=this.b,t[2]=this.c;var o=this.satAxes,i=this.satBounds,s=o[0],a=i[0];this.getNormal(s),a.setFromPoints(s,t);var c=o[1],u=i[1];c.subVectors(e,n),u.setFromPoints(c,t);var p=o[2],f=i[2];p.subVectors(n,r),f.setFromPoints(p,t);var l=o[3],h=i[3];l.subVectors(r,e),h.setFromPoints(l,t),this.sphere.setFromPoints(this.points),this.needsUpdate=!1}}(),y.prototype.closestPointToSegment=function(){var e=new t.Vector3,r=new t.Vector3,o=new t.Line3;return function(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;this.needsUpdate&&this.update();for(var a,c=t.start,u=t.end,p=this.points,f=1/0,l=0;l<3;l++){var h=(l+1)%3;o.start.copy(p[l]),o.end.copy(p[h]),(0,n.closestPointsSegmentToSegment)(o,t,e,r),(a=e.distanceToSquared(r))<f&&(f=a,i&&i.copy(e),s&&s.copy(r))}return this.closestPointToPoint(c,e),(a=c.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(c)),this.closestPointToPoint(u,e),(a=u.distanceToSquared(e))<f&&(f=a,i&&i.copy(e),s&&s.copy(u)),Math.sqrt(f)}}(),y.prototype.intersectsTriangle=function(){var n=new y,r=new Array(3),o=new Array(3),i=new e.SeparatingAxisBounds,s=new e.SeparatingAxisBounds,a=new t.Vector3;return function(t){this.needsUpdate&&this.update(),t.isSeparatingAxisTriangle||(n.copy(t),n.update(),t=n);var e=this.satBounds,c=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<4;u++){var p=e[u],f=c[u];if(i.setFromPoints(f,o),p.isSeparated(i))return!1}var l=t.satBounds,h=t.satAxes;r[0]=this.a,r[1]=this.b,r[2]=this.c;for(var y=0;y<4;y++){var d=l[y],v=h[y];if(i.setFromPoints(v,r),d.isSeparated(i))return!1}for(var g=0;g<4;g++)for(var P=c[g],b=0;b<4;b++){var S=h[b];if(a.crossVectors(P,S),i.setFromPoints(a,r),s.setFromPoints(a,o),i.isSeparated(s))return!1}return!0}}(),y.prototype.distanceToPoint=function(){var e=new t.Vector3;return function(t){return this.closestPointToPoint(t,e),t.distanceTo(e)}}(),y.prototype.distanceToTriangle=function(){var e=new t.Vector3,r=new t.Vector3,o=["a","b","c"],i=new t.Line3,s=new t.Line3;return function(t){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,c=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(t.needsUpdate&&t.update(),this.needsUpdate&&this.update(),this.intersectsTriangle(t))return(a||c)&&(this.getMidpoint(e),t.closestPointToPoint(e,r),this.closestPointToPoint(r,e),a&&a.copy(e),c&&c.copy(r)),0;for(var u=1/0,p=0;p<3;p++){var f=void 0,l=o[p],h=t[l];this.closestPointToPoint(h,e),(f=h.distanceToSquared(e))<u&&(u=f,a&&a.copy(e),c&&c.copy(h));var y=this[l];t.closestPointToPoint(y,e),(f=y.distanceToSquared(e))<u&&(u=f,a&&a.copy(y),c&&c.copy(e))}for(var d=0;d<3;d++){var v=o[d],g=o[(d+1)%3];i.set(this[v],this[g]);for(var P=0;P<3;P++){var b=o[P],S=o[(P+1)%3];s.set(t[b],t[S]),(0,n.closestPointsSegmentToSegment)(i,s,e,r);var T=e.distanceToSquared(r);T<u&&(u=T,a&&a.copy(e),c&&c.copy(r))}}return Math.sqrt(u)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./MathUtilities.js":"gld0"}],"KHU9":[function(require,module,exports) {
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Date.prototype.toString.call(Reflect.construct(Date,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,A=1<<w|g<<P|S<<b,B=y[g<<P|S<<b],O=y[A];e[m].set(B,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var D=0;D<12;D++)for(var E=e[D],C=0;C<12;C++){var L=o[C];(0,n.closestPointsSegmentToSegment)(E,L,i,a);var U=i.distanceToSquared(a);if(U<v&&(v=U,u&&u.copy(i),c&&c.copy(a),U<f))return Math.sqrt(U)}return Math.sqrt(v)}}();
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.OrientedBox=void 0;var t=require("three"),r=require("./SeparatingAxisBounds.js"),e=require("./SeparatingAxisTriangle.js"),n=require("./MathUtilities.js");function o(t){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(t)}function i(t,r){if(!(t instanceof r))throw new TypeError("Cannot call a class as a function")}function a(t,r){for(var e=0;e<r.length;e++){var n=r[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}function s(t,r,e){return r&&a(t.prototype,r),e&&a(t,e),t}function u(t,r,e){return(u="undefined"!=typeof Reflect&&Reflect.get?Reflect.get:function(t,r,e){var n=c(t,r);if(n){var o=Object.getOwnPropertyDescriptor(n,r);return o.get?o.get.call(e):o.value}})(t,r,e||t)}function c(t,r){for(;!Object.prototype.hasOwnProperty.call(t,r)&&null!==(t=d(t)););return t}function f(t,r){if("function"!=typeof r&&null!==r)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(r&&r.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),r&&p(t,r)}function p(t,r){return(p=Object.setPrototypeOf||function(t,r){return t.__proto__=r,t})(t,r)}function l(t){var r=h();return function(){var e,n=d(t);if(r){var o=d(this).constructor;e=Reflect.construct(n,arguments,o)}else e=n.apply(this,arguments);return y(this,e)}}function y(t,r){return!r||"object"!==o(r)&&"function"!=typeof r?v(t):r}function v(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function h(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){})),!0}catch(t){return!1}}function d(t){return(d=Object.setPrototypeOf?Object.getPrototypeOf:function(t){return t.__proto__||Object.getPrototypeOf(t)})(t)}var x=function(e){f(o,t.Box3);var n=l(o);function o(){var e;i(this,o);for(var a=arguments.length,s=new Array(a),u=0;u<a;u++)s[u]=arguments[u];return(e=n.call.apply(n,[this].concat(s))).isOrientedBox=!0,e.matrix=new t.Matrix4,e.invMatrix=new t.Matrix4,e.points=new Array(8).fill().map(function(){return new t.Vector3}),e.satAxes=new Array(3).fill().map(function(){return new t.Vector3}),e.satBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.alignedSatBounds=new Array(3).fill().map(function(){return new r.SeparatingAxisBounds}),e.sphere=new t.Sphere,e}return s(o,[{key:"set",value:function(t,r,e){u(d(o.prototype),"set",this).call(this,t,r),this.matrix=e}},{key:"copy",value:function(t){u(d(o.prototype),"copy",this).call(this,t),this.matrix.copy(t.matrix)}}]),o}();exports.OrientedBox=x,x.prototype.update=function(){for(var t=this.matrix,r=this.min,e=this.max,n=this.points,o=0;o<=1;o++)for(var i=0;i<=1;i++)for(var a=0;a<=1;a++){var s=n[1*o|2*i|4*a];s.x=o?e.x:r.x,s.y=i?e.y:r.y,s.z=a?e.z:r.z,s.applyMatrix4(t)}this.sphere.setFromPoints(this.points);for(var u=this.satBounds,c=this.satAxes,f=n[0],p=0;p<3;p++){var l=c[p],y=u[p],v=n[1<<p];l.subVectors(f,v),y.setFromPoints(l,n)}var h=this.alignedSatBounds;h[0].setFromPointsField(n,"x"),h[1].setFromPointsField(n,"y"),h[2].setFromPointsField(n,"z"),this.invMatrix.copy(this.matrix).invert()},x.prototype.intersectsBox=function(){var t=new r.SeparatingAxisBounds;return function(r){if(!r.intersectsSphere(this.sphere))return!1;var e=r.min,n=r.max,o=this.satBounds,i=this.satAxes,a=this.alignedSatBounds;if(t.min=e.x,t.max=n.x,a[0].isSeparated(t))return!1;if(t.min=e.y,t.max=n.y,a[1].isSeparated(t))return!1;if(t.min=e.z,t.max=n.z,a[2].isSeparated(t))return!1;for(var s=0;s<3;s++){var u=i[s],c=o[s];if(t.setFromBox(u,r),c.isSeparated(t))return!1}return!0}}(),x.prototype.intersectsTriangle=function(){var n=new e.SeparatingAxisTriangle,o=new Array(3),i=new r.SeparatingAxisBounds,a=new r.SeparatingAxisBounds,s=new t.Vector3;return function(t){t.isSeparatingAxisTriangle?t.needsUpdate&&t.update():(n.copy(t),n.update(),t=n);var r=this.satBounds,e=this.satAxes;o[0]=t.a,o[1]=t.b,o[2]=t.c;for(var u=0;u<3;u++){var c=r[u],f=e[u];if(i.setFromPoints(f,o),c.isSeparated(i))return!1}for(var p=t.satBounds,l=t.satAxes,y=this.points,v=0;v<3;v++){var h=p[v],d=l[v];if(i.setFromPoints(d,y),h.isSeparated(i))return!1}for(var x=0;x<3;x++)for(var m=e[x],w=0;w<4;w++){var g=l[w];if(s.crossVectors(m,g),i.setFromPoints(s,o),a.setFromPoints(s,y),i.isSeparated(a))return!1}return!0}}(),x.prototype.closestPointToPoint=function(t,r){return r.copy(t).applyMatrix4(this.invMatrix).clamp(this.min,this.max).applyMatrix4(this.matrix),r},x.prototype.distanceToPoint=function(){var r=new t.Vector3;return function(t){return this.closestPointToPoint(t,r),t.distanceTo(r)}}(),x.prototype.distanceToBox=function(){var r=["x","y","z"],e=new Array(12).fill().map(function(){return new t.Line3}),o=new Array(12).fill().map(function(){return new t.Line3}),i=new t.Vector3,a=new t.Vector3;return function(t){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,u=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,c=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null;if(this.intersectsBox(t))return(u||c)&&(t.getCenter(a),this.closestPointToPoint(a,i),t.closestPointToPoint(i,a),u&&u.copy(i),c&&c.copy(a)),0;for(var f=s*s,p=t.min,l=t.max,y=this.points,v=1/0,h=0;h<8;h++){var d=y[h];a.copy(d).clamp(p,l);var x=d.distanceToSquared(a);if(x<v&&(v=x,u&&u.copy(d),c&&c.copy(a),x<f))return Math.sqrt(x)}for(var m=0,w=0;w<3;w++)for(var g=0;g<=1;g++)for(var S=0;S<=1;S++){var P=(w+1)%3,b=(w+2)%3,B=1<<w|g<<P|S<<b,A=y[g<<P|S<<b],O=y[B];e[m].set(A,O);var T=r[w],M=r[P],j=r[b],F=o[m],q=F.start,z=F.end;q[T]=p[T],q[M]=g?p[M]:l[M],q[j]=S?p[j]:l[M],z[T]=l[T],z[M]=g?p[M]:l[M],z[j]=S?p[j]:l[M],m++}for(var _=0;_<=1;_++)for(var R=0;R<=1;R++)for(var V=0;V<=1;V++){a.x=_?l.x:p.x,a.y=R?l.y:p.y,a.z=V?l.z:p.z,this.closestPointToPoint(a,i);var k=a.distanceToSquared(i);if(k<v&&(v=k,u&&u.copy(i),c&&c.copy(a),k<f))return Math.sqrt(k)}for(var E=0;E<12;E++)for(var C=e[E],L=0;L<12;L++){var U=o[L];(0,n.closestPointsSegmentToSegment)(C,U,i,a);var D=i.distanceToSquared(a);if(D<v&&(v=D,u&&u.copy(i),c&&c.copy(a),D<f))return Math.sqrt(D)}return Math.sqrt(v)}}();
 },{"three":"dKqR","./SeparatingAxisBounds.js":"GlCc","./SeparatingAxisTriangle.js":"HHjx","./MathUtilities.js":"gld0"}],"AtwI":[function(require,module,exports) {
 "use strict";function e(e,t,g,r){var s=e.a,X=e.b,o=e.c,x=g.getX(t);s.x=r.getX(x),s.y=r.getY(x),s.z=r.getZ(x),x=g.getX(t+1),X.x=r.getX(x),X.y=r.getY(x),X.z=r.getZ(x),x=g.getX(t+2),o.x=r.getX(x),o.y=r.getY(x),o.z=r.getZ(x)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.setTriangle=e;
 },{}],"lzxM":[function(require,module,exports) {
@@ -564,13 +564,16 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"./TriangleUtils.js":"AtwI"}],"mmvR":[function(require,module,exports) {
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i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs and CHANGELOG for full signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,T)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(m){b.e(m)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=m);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),x),e.union(x)}),e}}]),n}();exports.default=w;
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e.Vector3,b=new i.SeparatingAxisTriangle,B=new e.Vector3,x=new e.Vector3,m=new e.Box3,w=new i.SeparatingAxisTriangle,T=function(){function n(i){var a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(d(this,n),!i.isBufferGeometry)throw new Error("MeshBVH: Only BufferGeometries are supported.");if(i.attributes.position.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the position attribute.");if(i.index&&i.index.isInterleavedBufferAttribute)throw new Error("MeshBVH: InterleavedBufferAttribute is not supported for the index attribute.");(a=Object.assign(f({strategy:t.CENTER,maxDepth:40,maxLeafTris:10,verbose:!0,setBoundingBox:!0},h,!1),a)).strategy=Math.max(0,Math.min(2,a.strategy)),this._roots=null,a[h]||(this._roots=(0,r.buildPackedTree)(i,a),!i.boundingBox&&a.setBoundingBox&&(i.boundingBox=this.getBoundingBox(new e.Box3))),this.geometry=i}return y(n,[{key:"refit",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;e&&Array.isArray(e)&&(e=new Set(e)),t&&Array.isArray(t)&&(t=new Set(t));for(var n,i,a,o,s=this.geometry,u=s.index.array,l=s.attributes.position.array,c=0,f=this._roots,d=0,v=f.length;d<v;d++)n=f[d],i=new Uint32Array(n),a=new Uint16Array(n),o=new Float32Array(n),y(0,c),c+=n.byteLength;function y(n,s){var c=arguments.length>2&&void 0!==arguments[2]&&arguments[2],f=2*n;if(a[f+15]===r.IS_LEAFNODE_FLAG){for(var d=i[n+6],v=1/0,h=1/0,g=1/0,p=-1/0,b=-1/0,B=-1/0,x=3*d,m=3*(d+a[f+14]);x<m;x++){var w=3*u[x],T=l[w+0],A=l[w+1],k=l[w+2];T<v&&(v=T),T>p&&(p=T),A<h&&(h=A),A>b&&(b=A),k<g&&(g=k),k>B&&(B=k)}return(o[n+0]!==v||o[n+1]!==h||o[n+2]!==g||o[n+3]!==p||o[n+4]!==b||o[n+5]!==B)&&(o[n+0]=v,o[n+1]=h,o[n+2]=g,o[n+3]=p,o[n+4]=b,o[n+5]=B,!0)}var S=n+8,_=i[n+6],O=S+s,E=_+s,j=!1,P=c||t&&t.has(O);(P||!e||e.has(O))&&(j=y(S,s,P));var F=!1,M=c||t&&t.has(E);(M||!e||e.has(E))&&(F=y(_,s,M));var U=j||F;if(U)for(var I=0;I<3;I++){var q=S+I,G=_+I,L=o[q],V=o[q+3],N=o[G],C=o[G+3];o[n+I]=L<N?L:N,o[n+I+3]=V>C?V:C}return U}}},{key:"traverse",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=this._roots[t],i=new Uint32Array(n),a=new Uint16Array(n);!function t(o){var s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;var u=2*o;var l=a[u+15]===r.IS_LEAFNODE_FLAG;if(l){var c=i[o+6],f=a[u+14];e(s,l,new Float32Array(n,4*o,6),c,f)}else{var d=o+r.BYTES_PER_NODE/4,v=i[o+6],y=i[o+7],h=e(s,l,new Float32Array(n,4*o,6),y);h||(t(d,s+1),t(v,s+1))}}(0)}},{key:"raycast",value:function(e,t,r,n){var i,a=this.geometry,s=u(this._roots);try{for(s.s();!(i=s.n()).done;){var l=i.value;(0,o.setBuffer)(l),(0,o.raycast)(0,e,a,t,r,n),(0,o.clearBuffer)()}}catch(c){s.e(c)}finally{s.f()}}},{key:"raycastFirst",value:function(e,t,r){var n,i=this.geometry,a=null,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;(0,o.setBuffer)(l);var c=(0,o.raycastFirst)(0,e,i,t,r);(0,o.clearBuffer)(),null!=c&&(null==a||c.distance<a.distance)&&(a=c)}}catch(f){s.e(f)}finally{s.f()}return a}},{key:"intersectsGeometry",value:function(e,t,r){var n,i=this.geometry,a=!1,s=u(this._roots);try{for(s.s();!(n=s.n()).done;){var l=n.value;if((0,o.setBuffer)(l),a=(0,o.intersectsGeometry)(0,e,i,t,r),(0,o.clearBuffer)(),a)break}}catch(c){s.e(c)}finally{s.f()}return a}},{key:"shapecast",value:function(e,t,r,n){var i=this.geometry;if(t instanceof Function){if(r){var a=r;r=function(e,t,r,n){var i=3*t;return a(e,i,i+1,i+2,r,n)}}t={boundsTraverseOrder:n,intersectsBounds:t,intersectsTriangle:r,intersectsRange:null},console.warn("MeshBVH: Shapecast function signature has changed and now takes an object of callbacks as a second argument. See docs for new signature.")}var l=t,c=l.boundsTraverseOrder,f=l.intersectsBounds,d=l.intersectsRange,v=l.intersectsTriangle;if(d&&v){var y=d;d=function(e,t,r,n,a){return!!y(e,t,r,n,a)||(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}}else d||(d=v?function(e,t,r,n){return(0,s.iterateOverTriangles)(e,t,i,v,r,n,w)}:function(e,t,r){return r});var h,g=!1,p=0,b=u(this._roots);try{for(b.s();!(h=b.n()).done;){var B=h.value;if((0,o.setBuffer)(B),g=(0,o.shapecast)(0,e,i,f,d,c,p),(0,o.clearBuffer)(),g)break;p+=B.byteLength}}catch(x){b.e(x)}finally{b.f()}return g}},{key:"intersectsBox",value:function(e,t,r){return g.set(t.min,t.max,r),g.update(),this.shapecast(e,{intersectsBounds:function(e){return g.intersectsBox(e)},intersectsTriangle:function(e){return g.intersectsTriangle(e)}})}},{key:"intersectsSphere",value:function(e,t){return this.shapecast(e,{intersectsBounds:function(e){return t.intersectsBox(e)},intersectsTriangle:function(e){return e.intersectsSphere(t)}})}},{key:"closestPointToGeometry",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:null,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:null,o=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,s=arguments.length>6&&void 0!==arguments[6]?arguments[6]:1/0;t.boundingBox||t.computeBoundingBox(),g.set(t.boundingBox.min,t.boundingBox.max,r),g.update();var u=t.attributes.position,l=t.index,c=null,f=null;n&&(c=B),i&&(f=x);var d=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return g.distanceToBox(e,Math.min(d,s))},intersectsBounds:function(e,t,r){return r<d&&r<s},intersectsTriangle:function(e){e.needsUpdate&&e.update();for(var t=e.sphere,s=0,v=l.count;s<v;s+=3){(0,a.setTriangle)(b,s,l,u),b.a.applyMatrix4(r),b.b.applyMatrix4(r),b.c.applyMatrix4(r),b.sphere.setFromPoints(b.points);var y=b.sphere;if(!(y.center.distanceTo(t.center)-y.radius-t.radius>d)){b.update();var h=e.distanceToTriangle(b,c,f);if(h<d&&(n&&n.copy(c),i&&i.copy(f),d=h),h<o)return!0}}return!1}}),d}},{key:"distanceToGeometry",value:function(e,t,r,n,i){return this.closestPointToGeometry(e,t,r,null,null,n,i)}},{key:"closestPointToPoint",value:function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1/0,a=n*n,o=i*i,s=1/0;return this.shapecast(e,{boundsTraverseOrder:function(e){return p.copy(t).clamp(e.min,e.max),p.distanceToSquared(t)},intersectsBounds:function(e,t,r){return r<s&&r<o},intersectsTriangle:function(e){e.closestPointToPoint(t,p);var n=t.distanceToSquared(p);return n<s&&(r&&r.copy(p),s=n),n<a}}),Math.sqrt(s)}},{key:"distanceToPoint",value:function(e,t,r,n){return this.closestPointToPoint(e,t,null,r,n)}},{key:"getBoundingBox",value:function(e){return e.makeEmpty(),this._roots.forEach(function(t){(0,s.arrayToBox)(0,new Float32Array(t),m),e.union(m)}),e}}],[{key:"serialize",value:function(e,t){var r=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],n=e._roots,i=t.getIndex();return{roots:n,index:r?i.array.slice():i.array}}},{key:"deserialize",value:function(t,r){var i=!(arguments.length>2&&void 0!==arguments[2])||arguments[2],a=t.index,o=t.roots,s=new n(r,f({},h,!0));if(s._roots=o,i){var u=r.getIndex();if(null===u){var l=new e.BufferAttribute(t.index,1,!1);r.setIndex(l)}else u.array!==a&&(u.array.set(a),u.needsUpdate=!0)}return s}}]),n}();exports.default=T;
 },{"three":"dKqR","./Constants.js":"tuIt","./buildFunctions.js":"IMAa","./Utils/OrientedBox.js":"KHU9","./Utils/SeparatingAxisTriangle.js":"HHjx","./Utils/TriangleUtils.js":"AtwI","./castFunctions.js":"mmvR","./Utils/BufferNodeUtils.js":"dxfM"}],"uNJb":[function(require,module,exports) {
 "use strict";function t(n){return(t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t})(n)}function n(n){switch(t(n)){case"number":return 8;case"string":return 2*n.length;case"boolean":return 4;default:return 0}}function e(t){return/(Uint|Int|Float)(8|16|32)Array/.test(t.constructor.name)}function r(t,n){var e={total:0,depth:{min:1/0,max:-1/0},tris:{min:1/0,max:-1/0},splits:[0,0,0]};return t.traverse(function(t,n,r,o,i){e.total++,n?(e.depth.min=Math.min(t,e.depth.min),e.depth.max=Math.max(t,e.depth.max),e.tris.min=Math.min(i,e.tris.min),e.tris.max=Math.max(i,e.tris.max)):e.splits[o]++},n),e.tris.min===1/0&&(e.tris.min=0,e.tris.max=0),e.depth.min===1/0&&(e.depth.min=0,e.depth.max=0),e}function o(t){return t._roots.map(function(n,e){return r(t,e)})}function i(r){for(var o=new Set,i=[r],a=0;i.length;){var s=i.pop();if(!o.has(s))for(var m in o.add(s),s)if(s.hasOwnProperty(m)){a+=n(m);var u=s[m];!u||"object"!==t(u)&&"function"!=typeof u?a+=n(u):e(u)?a+=u.byteLength:u instanceof ArrayBuffer?a+=u.byteLength:i.push(u)}}return a}Object.defineProperty(exports,"__esModule",{value:!0}),exports.estimateMemoryInBytes=i,exports.getBVHExtremes=o;
 },{}],"HxoX":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MeshBVHDebug=void 0;var e=require("three"),t=require("./Utils/ArrayBoxUtilities.js");function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function o(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}var i=new e.Box3,a=new e.Box3,u=new e.Vector3,s=function(){function n(e,t){r(this,n),this.bvh=e,this.geometry=t}return o(n,[{key:"getJSONStructure",value:function(){var r=this.bvh,n=[];return r.traverse(function(r,o,i,a,u){var s={bounds:(0,t.arrayToBox)(i,new e.Box3)};o?(s.count=u,s.offset=a):(s.left=null,s.right=null),n[r]=s;var f=n[r-1];f&&(null===f.left?f.left=s:f.right=s)}),n[0]}},{key:"validateBounds",value:function(){var e=this.bvh,r=this.geometry,n=[],o=r.index,s=r.getAttribute("position"),f=!0;return e.traverse(function(e,r,l,c,v){var b={depth:e,isLeaf:r,boundingData:l,offset:c,count:v};n[e]=b,(0,t.arrayToBox)(l,i);var h=n[e-1];if(r)for(var d=3*c,g=3*(c+v);d<g;d+=3){var y=o.getX(d),B=o.getX(d+1),x=o.getX(d+2),p=void 0;u.fromBufferAttribute(s,y),p=i.containsPoint(u),u.fromBufferAttribute(s,B),p=p&&i.containsPoint(u),u.fromBufferAttribute(s,x),p=p&&i.containsPoint(u),console.assert(p,"Leaf bounds does not fully contain triangle."),f=f&&p}if(h){(0,t.arrayToBox)(l,a);var m=a.containsBox(i);console.assert(m,"Parent bounds does not fully contain child."),f=f&&m}}),f}}]),n}();exports.MeshBVHDebug=s;
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
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i.default(f),l.add(q)),q&&(q.depth=h.visualBoundsDepth)}var v=window.performance.now();function x(){var e=window.performance.now()-v;for(var r in v=window.performance.now(),f.rotation.y+=h.speed*e*.001,f.updateMatrixWorld(),j.begin(),q&&q.update(),m.render(l,c),j.end(),g)g[r].visible=!1;var o=h.shape,t=g[o];t.visible=!0,t.position.copy(h.position),t.rotation.copy(h.rotation),t.scale.copy(h.scale);var i=(new s.Matrix4).copy(f.matrixWorld).invert().multiply(t.matrixWorld);if("sphere"===o){var u=new s.Sphere(void 0,1);u.applyMatrix4(i);var n=f.geometry.boundsTree.intersectsSphere(f,u);t.material.color.set(n?15277667:6710886),t.material.emissive.set(15277667).multiplyScalar(n?.25:0)}else if("box"===o){var a=new s.Box3;a.min.set(-.5,-.5,-.5),a.max.set(.5,.5,.5);var d=f.geometry.boundsTree.intersectsBox(f,a,i);t.material.color.set(d?15277667:6710886),t.material.emissive.set(15277667).multiplyScalar(d?.25:0)}else if("geometry"===o){var p=f.geometry.boundsTree.intersectsGeometry(f,t.geometry,i);t.material.color.set(p?15277667:6710886),t.material.emissive.set(15277667).multiplyScalar(p?.25:0)}y.object!==t&&y.attach(t),requestAnimationFrame(x)}w(),b(),x();
+},{"core-js/modules/es6.array.copy-within.js":"tWTB","core-js/modules/es6.array.fill.js":"hUQ6","core-js/modules/es6.array.filter.js":"GyG6","core-js/modules/es6.array.find.js":"Qppk","core-js/modules/es6.array.find-index.js":"sVmK","core-js/modules/es7.array.flat-map.js":"I8vV","core-js/modules/es6.array.from.js":"RRcs","core-js/modules/es7.array.includes.js":"TLss","core-js/modules/es6.array.iterator.js":"wVEN","core-js/modules/es6.array.map.js":"RBsu","core-js/modules/es6.array.of.js":"RB6b","core-js/modules/es6.array.slice.js":"btFn","core-js/modules/es6.array.sort.js":"nrVf","core-js/modules/es6.array.species.js":"smn3","core-js/modules/es6.date.to-primitive.js":"jQnQ","core-js/modules/es6.function.has-instance.js":"a7bX","core-js/modules/es6.function.name.js":"N3yi","core-js/modules/es6.map.js":"ioKM","core-js/modules/es6.math.acosh.js":"py3M","core-js/modules/es6.math.asinh.js":"ob11","core-js/modules/es6.math.atanh.js":"iUik","core-js/modules/es6.math.cbrt.js":"YRuK","core-js/modules/es6.math.clz32.js":"R2Qc","core-js/modules/es6.math.cosh.js":"nEse","core-js/modules/es6.math.expm1.js":"AmoX","core-js/modules/es6.math.fround.js":"vmlq","core-js/modules/es6.math.hypot.js":"kLut","core-js/modules/es6.math.imul.js":"A8J8","core-js/modules/es6.math.log1p.js":"qtpC","core-js/modules/es6.math.log10.js":"VUW8","core-js/modules/es6.math.log2.js":"Jo9J","core-js/modules/es6.math.sign.js":"mZl9","core-js/modules/es6.math.sinh.js":"m0zb","core-js/modules/es6.math.tanh.js":"Fnqw","core-js/modules/es6.math.trunc.js":"tiOR","core-js/modules/es6.number.constructor.js":"kRGG","core-js/modules/es6.number.epsilon.js":"DzYy","core-js/modules/es6.number.is-finite.js":"FuY7","core-js/modules/es6.number.is-integer.js":"pwRL","core-js/modules/es6.number.is-nan.js":"SsgJ","core-js/modules/es6.number.is-safe-integer.js":"qVIE","core-js/modules/es6.number.max-safe-integer.js":"shx2","core-js/modules/es6.number.min-safe-integer.js":"ifBH","core-js/modules/es6.number.parse-float.js":"yjyf","core-js/modules/es6.number.parse-int.js":"Guno","core-js/modules/es6.object.assign.js":"K3Jy","core-js/modules/es7.object.define-getter.js":"guoQ","core-js/modules/es7.object.define-setter.js":"HMp9","core-js/modules/es7.object.entries.js":"gxEP","core-js/modules/es6.object.freeze.js":"EO7q","core-js/modules/es6.object.get-own-property-descriptor.js":"nIty","core-js/modules/es7.object.get-own-property-descriptors.js":"BQD8","core-js/modules/es6.object.get-own-property-names.js":"i23Y","core-js/modules/es6.object.get-prototype-of.js":"ud3u","core-js/modules/es7.object.lookup-getter.js":"HB2g","core-js/modules/es7.object.lookup-setter.js":"QF5J","core-js/modules/es6.object.prevent-extensions.js":"llMc","core-js/modules/es6.object.to-string.js":"zTK3","core-js/modules/es6.object.is.js":"MlqR","core-js/modules/es6.object.is-frozen.js":"Z1rp","core-js/modules/es6.object.is-sealed.js":"Fckj","core-js/modules/es6.object.is-extensible.js":"EYbC","core-js/modules/es6.object.keys.js":"m9aB","core-js/modules/es6.object.seal.js":"GYFR","core-js/modules/es7.object.values.js":"Ltmz","core-js/modules/es6.promise.js":"Pjta","core-js/modules/es7.promise.finally.js":"l1j0","core-js/modules/es6.reflect.apply.js":"F0Xu","core-js/modules/es6.reflect.construct.js":"JlFO","core-js/modules/es6.reflect.define-property.js":"S841","core-js/modules/es6.reflect.delete-property.js":"JRlJ","core-js/modules/es6.reflect.get.js":"kv8Z","core-js/modules/es6.reflect.get-own-property-descriptor.js":"zj1X","core-js/modules/es6.reflect.get-prototype-of.js":"d0aC","core-js/modules/es6.reflect.has.js":"OWTq","core-js/modules/es6.reflect.is-extensible.js":"deHu","core-js/modules/es6.reflect.own-keys.js":"e6SV","core-js/modules/es6.reflect.prevent-extensions.js":"BmyK","core-js/modules/es6.reflect.set.js":"K46i","core-js/modules/es6.reflect.set-prototype-of.js":"L5z5","core-js/modules/es6.regexp.constructor.js":"BenF","core-js/modules/es6.regexp.flags.js":"pDhD","core-js/modules/es6.regexp.match.js":"RTfC","core-js/modules/es6.regexp.replace.js":"KGao","core-js/modules/es6.regexp.split.js":"aOHf","core-js/modules/es6.regexp.search.js":"zOab","core-js/modules/es6.regexp.to-string.js":"iflU","core-js/modules/es6.set.js":"coyu","core-js/modules/es6.symbol.js":"uVn9","core-js/modules/es7.symbol.async-iterator.js":"DlMC","core-js/modules/es6.string.anchor.js":"USd7","core-js/modules/es6.string.big.js":"c1D0","core-js/modules/es6.string.blink.js":"Ee86","core-js/modules/es6.string.bold.js":"ry39","core-js/modules/es6.string.code-point-at.js":"zR9y","core-js/modules/es6.string.ends-with.js":"zRn7","core-js/modules/es6.string.fixed.js":"AHLq","core-js/modules/es6.string.fontcolor.js":"H7V0","core-js/modules/es6.string.fontsize.js":"Dx83","core-js/modules/es6.string.from-code-point.js":"xSM3","core-js/modules/es6.string.includes.js":"fH7p","core-js/modules/es6.string.italics.js":"fRhg","core-js/modules/es6.string.iterator.js":"tbKg","core-js/modules/es6.string.link.js":"Aaz0","core-js/modules/es7.string.pad-start.js":"SWNE","core-js/modules/es7.string.pad-end.js":"n20m","core-js/modules/es6.string.raw.js":"t29D","core-js/modules/es6.string.repeat.js":"C85R","core-js/modules/es6.string.small.js":"qBr3","core-js/modules/es6.string.starts-with.js":"w2SA","core-js/modules/es6.string.strike.js":"eNyu","core-js/modules/es6.string.sub.js":"BVLK","core-js/modules/es6.string.sup.js":"kMsL","core-js/modules/es7.string.trim-left.js":"ppxd","core-js/modules/es7.string.trim-right.js":"hxx1","core-js/modules/es6.typed.array-buffer.js":"NJ0a","core-js/modules/es6.typed.int8-array.js":"wqMZ","core-js/modules/es6.typed.uint8-array.js":"QTtY","core-js/modules/es6.typed.uint8-clamped-array.js":"Kqgs","core-js/modules/es6.typed.int16-array.js":"fEGw","core-js/modules/es6.typed.uint16-array.js":"xyd6","core-js/modules/es6.typed.int32-array.js":"hIko","core-js/modules/es6.typed.uint32-array.js":"tNPN","core-js/modules/es6.typed.float32-array.js":"wisA","core-js/modules/es6.typed.float64-array.js":"mbTX","core-js/modules/es6.weak-map.js":"D6DP","core-js/modules/es6.weak-set.js":"bRUR","core-js/modules/web.timers.js":"OTsy","core-js/modules/web.immediate.js":"hZLH","core-js/modules/web.dom.iterable.js":"v6Aj","stats.js":"dnrf","dat.gui":"KkZG","three":"dKqR","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/controls/TransformControls.js":"pE3U","../src/MeshBVHVisualizer.js":"jNwr","../src/index.js":"uBxZ","regenerator-runtime/runtime.js":"QVnC"}]},{},["eDdU"], null)
\ No newline at end of file

From 83729d5f34e8981805ccb4630a2d4155d9b60c95 Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 21 May 2021 17:52:42 -0700
Subject: [PATCH 138/139] remove lazy generation flag

---
 example/asyncGenerate.js          |  2 +-
 example/distancecast.js           |  2 +-
 example/physics.js                |  2 +-
 example/pointCloudIntersection.js |  2 +-
 example/randomSampleDebug.js      |  2 +-
 example/raycast.js                | 15 +--------------
 example/selection.js              |  2 +-
 7 files changed, 7 insertions(+), 20 deletions(-)

diff --git a/example/asyncGenerate.js b/example/asyncGenerate.js
index ae654a312..65163cf4e 100644
--- a/example/asyncGenerate.js
+++ b/example/asyncGenerate.js
@@ -204,7 +204,7 @@ function regenerateKnot() {
 
 	} else {
 
-		knot.geometry.boundsTree = new MeshBVH( knot.geometry, { lazyGeneration: false } );
+		knot.geometry.boundsTree = new MeshBVH( knot.geometry );
 		totalStallTime = window.performance.now() - stallStartTime;
 
 		group.add( knot );
diff --git a/example/distancecast.js b/example/distancecast.js
index ec14990a1..a53220836 100644
--- a/example/distancecast.js
+++ b/example/distancecast.js
@@ -85,7 +85,7 @@ function init() {
 	}
 
 	planeGeom.computeVertexNormals();
-	planeGeom.computeBoundsTree( { lazyGeneration: false } );
+	planeGeom.computeBoundsTree();
 
 	terrain = new THREE.Mesh( planeGeom, new THREE.MeshStandardMaterial( { color: 0xFFFFFF, metalness: 0.1, roughness: 0.9, side: THREE.DoubleSide } ) );
 	terrain.rotation.x = - Math.PI / 2;
diff --git a/example/physics.js b/example/physics.js
index c128f50dd..ba48cb081 100644
--- a/example/physics.js
+++ b/example/physics.js
@@ -214,7 +214,7 @@ function loadColliderEnvironment() {
 
 		// create the merged geometry
 		const mergedGeometry = BufferGeometryUtils.mergeBufferGeometries( geometries, false );
-		mergedGeometry.boundsTree = new MeshBVH( mergedGeometry, { lazyGeneration: false } );
+		mergedGeometry.boundsTree = new MeshBVH( mergedGeometry );
 
 		collider = new THREE.Mesh( mergedGeometry );
 		collider.material.wireframe = true;
diff --git a/example/pointCloudIntersection.js b/example/pointCloudIntersection.js
index 41d805a32..8f069b321 100644
--- a/example/pointCloudIntersection.js
+++ b/example/pointCloudIntersection.js
@@ -89,7 +89,7 @@ function init() {
 		bvhGeometry.setIndex( indices );
 		const bvhMaterial = new THREE.MeshBasicMaterial( { color: 0xff0000 } );
 		bvhMesh = new THREE.Mesh( bvhGeometry, bvhMaterial );
-		bvhMesh.geometry.computeBoundsTree( { lazyGeneration: false } );
+		bvhMesh.geometry.computeBoundsTree();
 
 		helper = new MeshBVHVisualizer( bvhMesh, params.depth );
 		scene.add( helper );
diff --git a/example/randomSampleDebug.js b/example/randomSampleDebug.js
index b704b59c9..dcae5652f 100644
--- a/example/randomSampleDebug.js
+++ b/example/randomSampleDebug.js
@@ -58,7 +58,7 @@ function init() {
 
 	const transformSeed = 7830035629;
 	const raySeed = 4697211981;
-	const options = { strategy: AVERAGE, packData: false, lazyGeneration: false, maxDepth: 1 };
+	const options = { strategy: AVERAGE, packData: false, maxDepth: 1 };
 
 	const geometry = new THREE.TorusBufferGeometry( 1, 1, 40, 10 );
 	geometry.computeBoundsTree( options );
diff --git a/example/raycast.js b/example/raycast.js
index d40bc7d86..8653acfd1 100644
--- a/example/raycast.js
+++ b/example/raycast.js
@@ -66,7 +66,6 @@ const params = {
 
 	mesh: {
 		splitStrategy: CENTER,
-		lazyGeneration: true,
 		count: 1,
 		useBoundsTree: true,
 		visualizeBounds: false,
@@ -177,7 +176,7 @@ const updateFromOptions = () => {
 	if ( params.mesh.useBoundsTree && ! knotGeometry.boundsTree ) {
 
 		console.time( 'computing bounds tree' );
-		knotGeometry.computeBoundsTree( { strategy: params.mesh.splitStrategy, lazyGeneration: params.mesh.lazyGeneration } );
+		knotGeometry.computeBoundsTree( { strategy: params.mesh.splitStrategy } );
 		knotGeometry.boundsTree.splitStrategy = params.mesh.splitStrategy;
 		console.timeEnd( 'computing bounds tree' );
 
@@ -270,12 +269,6 @@ const render = () => {
 	} );
 	containerObj.updateMatrixWorld();
 
-	if ( boundsViz && params.mesh.lazyGeneration ) {
-
-		boundsViz.update();
-
-	}
-
 	rayCasterObjects.forEach( f => f.update() );
 
 	renderer.render( scene, camera );
@@ -297,12 +290,6 @@ rcFolder.open();
 
 const meshFolder = gui.addFolder( 'Mesh' );
 meshFolder.add( params.mesh, 'useBoundsTree' ).onChange( () => updateFromOptions() );
-meshFolder.add( params.mesh, 'lazyGeneration' ).onChange( () => {
-
-	knotGeometry.disposeBoundsTree();
-	updateFromOptions();
-
-} );
 meshFolder.add( params.mesh, 'splitStrategy', { 'CENTER': CENTER, 'SAH': SAH, 'AVERAGE': AVERAGE } ).onChange( () => updateFromOptions() );
 meshFolder.add( params.mesh, 'count' ).min( 1 ).max( 300 ).step( 1 ).onChange( () => updateFromOptions() );
 meshFolder.add( params.mesh, 'speed' ).min( 0 ).max( 20 );
diff --git a/example/selection.js b/example/selection.js
index b5935c0f1..d774af535 100644
--- a/example/selection.js
+++ b/example/selection.js
@@ -88,7 +88,7 @@ function init() {
 			polygonOffsetFactor: 1,
 		} )
 	);
-	mesh.geometry.boundsTree = new MeshBVH( mesh.geometry, { lazyGeneration: false } );
+	mesh.geometry.boundsTree = new MeshBVH( mesh.geometry );
 	mesh.geometry.setAttribute( 'color', new THREE.Uint8BufferAttribute(
 		new Array( mesh.geometry.index.count * 3 ).fill( 255 ), 3, true
 	) );

From 080ff1e4a65128dc5a014a0676dbbad7f85552fc Mon Sep 17 00:00:00 2001
From: Garrett Johnson <garrett.kjohnson@gmail.com>
Date: Fri, 21 May 2021 17:57:05 -0700
Subject: [PATCH 139/139] npm run build

---
 example/bundle/asyncGenerate.4a48c6e8.js          | 2 +-
 example/bundle/distancecast.4107d8f2.js           | 2 +-
 example/bundle/physics.50b811f1.js                | 2 +-
 example/bundle/pointCloudIntersection.fd058085.js | 2 +-
 example/bundle/randomSampleDebug.32ad2b43.js      | 2 +-
 example/bundle/raycast.88074831.js                | 2 +-
 example/bundle/selection.383a520f.js              | 2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/example/bundle/asyncGenerate.4a48c6e8.js b/example/bundle/asyncGenerate.4a48c6e8.js
index a80d1bc26..ade481009 100644
--- a/example/bundle/asyncGenerate.4a48c6e8.js
+++ b/example/bundle/asyncGenerate.4a48c6e8.js
@@ -44,5 +44,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.acceleratedRaycast=f,exports.computeBoundsTree=p,exports.disposeBoundsTree=b,Object.defineProperty(exports,"MeshBVH",{enumerable:!0,get:function(){return t.default}}),Object.defineProperty(exports,"Visualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"MeshBVHVisualizer",{enumerable:!0,get:function(){return r.default}}),Object.defineProperty(exports,"CENTER",{enumerable:!0,get:function(){return n.CENTER}}),Object.defineProperty(exports,"AVERAGE",{enumerable:!0,get:function(){return n.AVERAGE}}),Object.defineProperty(exports,"SAH",{enumerable:!0,get:function(){return n.SAH}}),Object.defineProperty(exports,"NOT_INTERSECTED",{enumerable:!0,get:function(){return n.NOT_INTERSECTED}}),Object.defineProperty(exports,"INTERSECTED",{enumerable:!0,get:function(){return n.INTERSECTED}}),Object.defineProperty(exports,"CONTAINED",{enumerable:!0,get:function(){return n.CONTAINED}}),Object.defineProperty(exports,"getBVHExtremes",{enumerable:!0,get:function(){return s.getBVHExtremes}}),Object.defineProperty(exports,"estimateMemoryInBytes",{enumerable:!0,get:function(){return s.estimateMemoryInBytes}}),Object.defineProperty(exports,"MeshBVHDebug",{enumerable:!0,get:function(){return u.MeshBVHDebug}});var e=require("three"),t=i(require("./MeshBVH.js")),r=i(require("./MeshBVHVisualizer.js")),n=require("./Constants.js"),s=require("./Utils/Debug.js"),u=require("./MeshBVHDebug.js");function i(e){return e&&e.__esModule?e:{default:e}}var o=new e.Ray,a=new e.Matrix4,c=e.Mesh.prototype.raycast;function f(e,t){if(this.geometry.boundsTree){if(void 0===this.material)return;if(a.copy(this.matrixWorld).invert(),o.copy(e.ray).applyMatrix4(a),!0===e.firstHitOnly){var r=this.geometry.boundsTree.raycastFirst(this,e,o);r&&t.push(r)}else this.geometry.boundsTree.raycast(this,e,o,t)}else c.call(this,e,t)}function p(e){return this.boundsTree=new t.default(this,e),this.boundsTree}function b(){this.boundsTree=null}
 },{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"ODc6":[function(require,module,exports) {
-"use strict";var e=u(require("three")),n=d(require("stats.js")),r=require("dat.gui"),t=require("../src/workers/GenerateMeshBVHWorker.js"),a=require("../src/index.js"),o=d(require("../src/MeshBVHVisualizer.js")),i=d(require("../src/MeshBVH.js"));function d(e){return e&&e.__esModule?e:{default:e}}function s(e){if("function"!=typeof WeakMap)return null;var n=new WeakMap,r=new WeakMap;return(s=function(e){return e?r:n})(e)}function u(e,n){if(!n&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=s(n);if(r&&r.has(e))return r.get(e);var t={},a=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if("default"!==o&&Object.prototype.hasOwnProperty.call(e,o)){var i=a?Object.getOwnPropertyDescriptor(e,o):null;i&&(i.get||i.set)?Object.defineProperty(t,o,i):t[o]=e[o]}return t.default=e,r&&r.set(e,t),t}e.Mesh.raycast=a.acceleratedRaycast;var l,p,w,c,m,f,h,g,y,v,b,M={useWebWorker:!0,radius:1,tube:.3,tubularSegments:250,radialSegments:250,p:3,q:5,displayHelper:!1,helperDepth:10},S=!1;function W(){h=document.getElementById("output"),(l=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),l.setSize(window.innerWidth,window.innerHeight),l.setClearColor(16763432,1),l.gammaOutput=!0,document.body.appendChild(l.domElement),(w=new e.Scene).fog=new e.Fog(16763432,20,60);var a=new e.DirectionalLight(16777215,1);a.position.set(1,1,1),w.add(a),w.add(new e.AmbientLight(11583173,.8)),(p=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,4),p.far=100,p.updateProjectionMatrix(),m=new e.Clock,v=new n.default,document.body.appendChild(v.dom),y=new e.Group,w.add(y);for(var o=0;o<400;o++){var i=new e.Mesh(new e.SphereBufferGeometry(1,32,32),new e.MeshBasicMaterial);i.position.set(Math.random()-.5,Math.random()-.5,Math.random()-.5).multiplyScalar(70),i.scale.setScalar(.3*Math.random()+.1),y.add(i)}b=new t.GenerateMeshBVHWorker;var d=(f=new r.GUI).addFolder("helper");d.add(M,"displayHelper").name("enabled").onChange(function(e){e&&g&&g.update()}),d.add(M,"helperDepth",1,50,1).onChange(function(e){g&&(g.depth=e,g.update())}),d.open();var s=f.addFolder("knot");s.add(M,"useWebWorker"),s.add(M,"radius",.5,2,.01),s.add(M,"tube",.2,1.2,.01),s.add(M,"tubularSegments",50,1e3,1),s.add(M,"radialSegments",5,1e3,1),s.add(M,"p",1,10,1),s.add(M,"q",1,10,1),s.add({regenerateKnot:G},"regenerateKnot").name("regenerate"),s.open(),G(),window.addEventListener("resize",function(){p.aspect=window.innerWidth/window.innerHeight,p.updateProjectionMatrix(),l.setSize(window.innerWidth,window.innerHeight)},!1)}function G(){if(!S){S=!0,c&&(c.material.dispose(),c.geometry.dispose(),y.remove(c),y.remove(g));var n=window.performance.now(),r=window.performance.now();c=new e.Mesh(new e.TorusKnotBufferGeometry(M.radius,M.tube,M.tubularSegments,M.radialSegments,M.p,M.q),new e.MeshStandardMaterial({color:new e.Color(5093036).convertSRGBToLinear(),roughness:.75}));var t,a=window.performance.now()-r,d=window.performance.now();if(M.useWebWorker)b.generate(c.geometry).then(function(e){c.geometry.boundsTree=e,y.add(c);var n=window.performance.now()-d;S=!1,(g=new o.default(c,0)).depth=M.helperDepth,M.displayHelper&&g.update(),y.add(g),h.textContent="Geometry Generation Time : ".concat(a.toFixed(3),"ms\n")+"BVH Generation Time : ".concat(n.toFixed(3),"ms\n")+"Frame Stall Time : ".concat(t.toFixed(3))}),t=window.performance.now()-n;else{c.geometry.boundsTree=new i.default(c.geometry,{lazyGeneration:!1}),t=window.performance.now()-n,y.add(c);var s=window.performance.now()-d;S=!1,(g=new o.default(c)).depth=M.helperDepth,g.update(),y.add(g),h.textContent="Geometry Generation Time : ".concat(a.toFixed(3),"ms\n")+"BVH Generation Time : ".concat(s.toFixed(3),"ms\n")+"Frame Stall Time : ".concat(t.toFixed(3))}}}function x(){v.update(),requestAnimationFrame(x);var e=m.getDelta();y.rotation.x+=.4*e,y.rotation.y+=.6*e,g&&(g.visible=M.displayHelper),l.render(w,p)}W(),x();
+"use strict";var e=u(require("three")),n=d(require("stats.js")),r=require("dat.gui"),t=require("../src/workers/GenerateMeshBVHWorker.js"),a=require("../src/index.js"),o=d(require("../src/MeshBVHVisualizer.js")),i=d(require("../src/MeshBVH.js"));function d(e){return e&&e.__esModule?e:{default:e}}function s(e){if("function"!=typeof WeakMap)return null;var n=new WeakMap,r=new WeakMap;return(s=function(e){return e?r:n})(e)}function u(e,n){if(!n&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=s(n);if(r&&r.has(e))return r.get(e);var t={},a=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if("default"!==o&&Object.prototype.hasOwnProperty.call(e,o)){var i=a?Object.getOwnPropertyDescriptor(e,o):null;i&&(i.get||i.set)?Object.defineProperty(t,o,i):t[o]=e[o]}return t.default=e,r&&r.set(e,t),t}e.Mesh.raycast=a.acceleratedRaycast;var p,w,l,c,m,f,h,g,y,v,b,M={useWebWorker:!0,radius:1,tube:.3,tubularSegments:250,radialSegments:250,p:3,q:5,displayHelper:!1,helperDepth:10},S=!1;function W(){h=document.getElementById("output"),(p=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),p.setSize(window.innerWidth,window.innerHeight),p.setClearColor(16763432,1),p.gammaOutput=!0,document.body.appendChild(p.domElement),(l=new e.Scene).fog=new e.Fog(16763432,20,60);var a=new e.DirectionalLight(16777215,1);a.position.set(1,1,1),l.add(a),l.add(new e.AmbientLight(11583173,.8)),(w=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,4),w.far=100,w.updateProjectionMatrix(),m=new e.Clock,v=new n.default,document.body.appendChild(v.dom),y=new e.Group,l.add(y);for(var o=0;o<400;o++){var i=new e.Mesh(new e.SphereBufferGeometry(1,32,32),new e.MeshBasicMaterial);i.position.set(Math.random()-.5,Math.random()-.5,Math.random()-.5).multiplyScalar(70),i.scale.setScalar(.3*Math.random()+.1),y.add(i)}b=new t.GenerateMeshBVHWorker;var d=(f=new r.GUI).addFolder("helper");d.add(M,"displayHelper").name("enabled").onChange(function(e){e&&g&&g.update()}),d.add(M,"helperDepth",1,50,1).onChange(function(e){g&&(g.depth=e,g.update())}),d.open();var s=f.addFolder("knot");s.add(M,"useWebWorker"),s.add(M,"radius",.5,2,.01),s.add(M,"tube",.2,1.2,.01),s.add(M,"tubularSegments",50,1e3,1),s.add(M,"radialSegments",5,1e3,1),s.add(M,"p",1,10,1),s.add(M,"q",1,10,1),s.add({regenerateKnot:x},"regenerateKnot").name("regenerate"),s.open(),x(),window.addEventListener("resize",function(){w.aspect=window.innerWidth/window.innerHeight,w.updateProjectionMatrix(),p.setSize(window.innerWidth,window.innerHeight)},!1)}function x(){if(!S){S=!0,c&&(c.material.dispose(),c.geometry.dispose(),y.remove(c),y.remove(g));var n=window.performance.now(),r=window.performance.now();c=new e.Mesh(new e.TorusKnotBufferGeometry(M.radius,M.tube,M.tubularSegments,M.radialSegments,M.p,M.q),new e.MeshStandardMaterial({color:new e.Color(5093036).convertSRGBToLinear(),roughness:.75}));var t,a=window.performance.now()-r,d=window.performance.now();if(M.useWebWorker)b.generate(c.geometry).then(function(e){c.geometry.boundsTree=e,y.add(c);var n=window.performance.now()-d;S=!1,(g=new o.default(c,0)).depth=M.helperDepth,M.displayHelper&&g.update(),y.add(g),h.textContent="Geometry Generation Time : ".concat(a.toFixed(3),"ms\n")+"BVH Generation Time : ".concat(n.toFixed(3),"ms\n")+"Frame Stall Time : ".concat(t.toFixed(3))}),t=window.performance.now()-n;else{c.geometry.boundsTree=new i.default(c.geometry),t=window.performance.now()-n,y.add(c);var s=window.performance.now()-d;S=!1,(g=new o.default(c)).depth=M.helperDepth,g.update(),y.add(g),h.textContent="Geometry Generation Time : ".concat(a.toFixed(3),"ms\n")+"BVH Generation Time : ".concat(s.toFixed(3),"ms\n")+"Frame Stall Time : ".concat(t.toFixed(3))}}}function G(){v.update(),requestAnimationFrame(G);var e=m.getDelta();y.rotation.x+=.4*e,y.rotation.y+=.6*e,g&&(g.visible=M.displayHelper),p.render(l,w)}W(),G();
 },{"three":"dKqR","stats.js":"dnrf","dat.gui":"KkZG","../src/workers/GenerateMeshBVHWorker.js":"dbR2","../src/index.js":"uBxZ","../src/MeshBVHVisualizer.js":"jNwr","../src/MeshBVH.js":"nIyY"}]},{},["ODc6"], null)
\ No newline at end of file
diff --git a/example/bundle/distancecast.4107d8f2.js b/example/bundle/distancecast.4107d8f2.js
index 1e6a096af..29fcca497 100644
--- a/example/bundle/distancecast.4107d8f2.js
+++ b/example/bundle/distancecast.4107d8f2.js
@@ -579,5 +579,5 @@ var r;!function(){"use strict";var t=.5*(Math.sqrt(3)-1),e=(3-Math.sqrt(3))/6,a=
 var define;
 var t,r=function(t){"use strict";var r,e=Object.prototype,n=e.hasOwnProperty,o="function"==typeof Symbol?Symbol:{},i=o.iterator||"@@iterator",a=o.asyncIterator||"@@asyncIterator",c=o.toStringTag||"@@toStringTag";function u(t,r,e){return Object.defineProperty(t,r,{value:e,enumerable:!0,configurable:!0,writable:!0}),t[r]}try{u({},"")}catch(P){u=function(t,r,e){return t[r]=e}}function h(t,r,e,n){var o=r&&r.prototype instanceof d?r:d,i=Object.create(o.prototype),a=new G(n||[]);return i._invoke=function(t,r,e){var n=l;return function(o,i){if(n===p)throw new Error("Generator is already running");if(n===y){if("throw"===o)throw i;return F()}for(e.method=o,e.arg=i;;){var a=e.delegate;if(a){var c=j(a,e);if(c){if(c===v)continue;return c}}if("next"===e.method)e.sent=e._sent=e.arg;else if("throw"===e.method){if(n===l)throw n=y,e.arg;e.dispatchException(e.arg)}else"return"===e.method&&e.abrupt("return",e.arg);n=p;var 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diff --git a/example/bundle/physics.50b811f1.js b/example/bundle/physics.50b811f1.js
index 1e6fc973e..ff1c55126 100644
--- a/example/bundle/physics.50b811f1.js
+++ b/example/bundle/physics.50b811f1.js
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l,p,u,h,m,v,f,w,y,S={displayCollider:!1,displayBVH:!1,visualizeDepth:10,gravity:-9.8,physicsSteps:5,simulationSpeed:1,sphereSize:1,pause:!1,step:function(){for(var e=S.physicsSteps,t=0;t<e;t++)H(.016/e)},explode:W,reset:O},M=[],g=[],V=new e.Sphere,b=new e.Vector3,x=new e.Vector3,P=new e.Vector3(0,0,1);function j(){(l=new e.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),l.setSize(window.innerWidth,window.innerHeight),l.setClearColor(1251612,1),l.shadowMap.enabled=!0,l.shadowMap.type=e.PCFSoftShadowMap,l.gammaOutput=!0,document.body.appendChild(l.domElement),(u=new e.Scene).fog=new e.Fog(1251612,30,70);var t=new e.DirectionalLight(11193599,1);t.position.set(1,1.5,1).multiplyScalar(50),t.intensity=.25;var r=t.shadow.camera;r.bottom=r.left=-10,r.top=r.right=10,u.add(t),u.add(new e.HemisphereLight(4491519,2241348,.3)),(p=new e.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(10,10,-10),p.far=100,p.updateProjectionMatrix(),window.camera=p,h=new e.Clock,new a.OrbitControls(p,l.domElement),v=new i.default,document.body.appendChild(v.dom),C();var n=(m=new o.GUI).addFolder("Visualization");n.add(S,"displayCollider"),n.add(S,"displayBVH"),n.add(S,"visualizeDepth",1,20,1).onChange(function(e){y.depth=e,y.update()}),n.open();var d=m.addFolder("Physics");d.add(S,"physicsSteps",0,30,1),d.add(S,"gravity",-100,100,.01).onChange(function(e){S.gravity=parseFloat(e)}),d.add(S,"simulationSpeed",0,5,.01),d.add(S,"sphereSize",.2,5,.1),d.add(S,"pause"),d.add(S,"step"),d.open(),m.add(S,"explode"),m.add(S,"reset"),m.open();var s=new e.Raycaster,c=new e.Vector2,f=0,w=0;l.domElement.addEventListener("pointerdown",function(e){f=e.clientX,w=e.clientY}),l.domElement.addEventListener("pointerup",function(e){if(!(Math.abs(e.clientX-f)+Math.abs(e.clientY-w)>2)){c.x=e.clientX/window.innerWidth*2-1,c.y=-e.clientY/window.innerHeight*2+1,s.setFromCamera(c,p);var t=B();t.position.copy(p.position).addScaledVector(s.ray.direction,3),t.velocity.set(Math.random()-.5,Math.random()-.5,Math.random()-.5).addScaledVector(s.ray.direction,10*Math.random()+15).multiplyScalar(.5)}}),window.addEventListener("resize",function(){p.aspect=window.innerWidth/window.innerHeight,p.updateProjectionMatrix(),l.setSize(window.innerWidth,window.innerHeight)},!1),window.createSphere=B}function C(){(new t.GLTFLoader).load("../models/low_poly_environment_jungle_scene/scene.gltf",function(t){(f=t.scene).scale.setScalar(.05);var a=new e.PointLight(65535);a.distance=7,a.position.set(-100,-40,100),f.add(a);var i=new e.PointLight(16768358);i.distance=15,i.intensity=5,i.position.set(80,80,135),i.shadow.normalBias=.01,i.shadow.bias=-.001,i.shadow.mapSize.setScalar(1024),i.castShadow=!0,f.add(i);var o=[];f.updateMatrixWorld(!0),f.traverse(function(e){if(e.geometry){var t=e.geometry.clone();for(var a in t.applyMatrix4(e.matrixWorld),t.attributes)"position"!==a&&t.deleteAttribute(a);o.push(t)}});var d=r.BufferGeometryUtils.mergeBufferGeometries(o,!1);d.boundsTree=new n.MeshBVH(d),(w=new e.Mesh(d)).material.wireframe=!0,w.material.opacity=.5,w.material.transparent=!0,y=new n.MeshBVHVisualizer(w,S.visualizeDepth),u.add(y),u.add(w),u.add(f),f.traverse(function(e){e.material&&(e.castShadow=!0,e.receiveShadow=!0,e.material.shadowSide=2)})})}function z(t,a,r,i,o){var n=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0;if(!(o<Math.max(Math.abs(.04*S.gravity),5))){var d=2*Math.max(a?Math.max(t.collider.radius,a.collider.radius):t.collider.radius,.4),s=new e.Mesh(new e.RingBufferGeometry(0,1,30),new e.MeshBasicMaterial({side:2,transparent:!0,depthWrite:!1}));s.lifetime=0,s.maxLifetime=.4,s.maxScale=d*Math.max(Math.sin(Math.min(o/200,1)*Math.PI/2),.35),s.position.copy(r).addScaledVector(i,n),s.quaternion.setFromUnitVectors(P,i),u.add(s),g.push(s)}}function B(){var t=new e.Color(16777215),a=new e.Color(1251612).lerp(t,.5*Math.random()+.5).convertSRGBToLinear(),r=new e.Mesh(new e.SphereBufferGeometry(1,20,20),new e.MeshStandardMaterial({color:a}));u.add(r),r.castShadow=!0,r.receiveShadow=!0,r.material.shadowSide=2;var i=.5*S.sphereSize*(.2*Math.random()+.6);return r.scale.setScalar(i),r.collider=new e.Sphere(r.position,i),r.velocity=new e.Vector3(0,0,0),r.mass=Math.pow(i,3)*Math.PI*4/3,M.push(r),r}function L(t){for(var a=w.geometry.boundsTree,r=0,i=M.length;r<i;r++){var o=M[r],n=o.collider;if(o.velocity.y+=S.gravity*t,n.center.addScaledVector(o.velocity,t),n.center.y<-80)M.splice(r,1),r--,i--,o.material.dispose(),o.geometry.dispose(),u.remove(o);else{V.copy(o.collider);var d=!1;if(a.shapecast(w,{intersectsBounds:function(e){return e.intersectsSphere(V)},intersectsTriangle:function(e){e.closestPointToPoint(V.center,b),b.sub(V.center);var t=b.length();if(t<V.radius){var a=t-V.radius;b.multiplyScalar(1/t),V.center.addScaledVector(b,a),d=!0}},traverseBoundsOrder:function(e){return e.distanceToPoint(V.center)-V.radius}}),d){b.subVectors(V.center,n.center).normalize(),o.velocity.reflect(b);var s=o.velocity.dot(b);o.velocity.addScaledVector(b,.5*-s),o.velocity.multiplyScalar(Math.max(1-t,0)),n.center.copy(V.center),x.copy(V.center).addScaledVector(b,-V.radius),z(o,null,x,b,s,.05)}}}for(var c=0,l=M.length;c<l;c++){for(var p=M[c],h=p.collider,m=c+1;m<l;m++){var v=M[m],f=v.collider;b.subVectors(h.center,f.center);var y=b.length()-(h.radius+f.radius);if(y<0){b.normalize();var g=p.velocity.dot(b),P=v.velocity.dot(b),j=Math.max(g,.2),C=Math.max(P,.2),B=j+C,L=j/B,O=C/B;h.center.addScaledVector(b,-L*y),f.center.addScaledVector(b,O*y);var W=new e.Vector3;W.addScaledVector(b,-g).addScaledVector(b,P);var H=W.length(),E=p.mass,F=v.mass,G=void 0,q=void 0;W.dot(p.velocity)>W.dot(v.velocity)?(G=.5*H*(E-F)/(E+F),q=.5*H*2*E/(E+F),G-=H):(G=.5*H*2*F/(E+F),q=.5*H*(F-E)/(E+F),q-=H),W.normalize(),p.velocity.addScaledVector(W,G),v.velocity.addScaledVector(W,q),x.copy(h.center).addScaledVector(b,-h.radius),z(p,v,x,b,H,0)}}p.position.copy(h.center)}}function O(){M.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),M.length=0,g.forEach(function(e){e.material.dispose(),e.geometry.dispose(),u.remove(e)}),g.length=0}function W(){var t=new e.Vector3;M.forEach(function(e){t.copy(e.position),t.y+=10,t.normalize(),e.velocity.addScaledVector(t,120)})}function H(e){if(w)for(var t=S.physicsSteps,a=0;a<t;a++)L(e/t);for(var r=0,i=g.length;r<i;r++){var o=g[r];o.lifetime+=e;var n=o.lifetime/o.maxLifetime,d=Math.sin(4.5*n*Math.PI/4);d=1-Math.pow(1-d,2),o.scale.setScalar(d*o.maxScale),o.material.opacity=1-Math.sin(2*n*Math.PI/4),n>=1&&(g.splice(r,1),o.parent.remove(o),o.geometry.dispose(),o.material.dispose(),r--,i--)}}function E(){v.update(),requestAnimationFrame(E);var e=Math.min(h.getDelta(),.1);w&&(w.visible=S.displayCollider,y.visible=S.displayBVH,S.pause||H(S.simulationSpeed*e)),l.render(u,p)}j(),E();
 },{"three":"dKqR","three/examples/jsm/loaders/GLTFLoader.js":"O6i0","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/utils/BufferGeometryUtils.js":"Jcll","stats.js":"dnrf","dat.gui":"KkZG","../src/index.js":"uBxZ"}]},{},["UoLN"], null)
\ No newline at end of file
diff --git a/example/bundle/pointCloudIntersection.fd058085.js b/example/bundle/pointCloudIntersection.fd058085.js
index b6d67be15..d9989d783 100644
--- a/example/bundle/pointCloudIntersection.fd058085.js
+++ b/example/bundle/pointCloudIntersection.fd058085.js
@@ -45,5 +45,5 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"three":"dKqR","./Utils/ArrayBoxUtilities.js":"a4zN"}],"uBxZ":[function(require,module,exports) {
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 },{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"CMV4":[function(require,module,exports) {
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+"use strict";var e,t,r,n,i,o,a,s,d=y(require("stats.js/src/Stats")),p=f(require("three")),c=require("three/examples/jsm/controls/OrbitControls.js"),l=require("three/examples/jsm/loaders/PLYLoader.js"),u=require("dat.gui"),w=require("../src/index.js");function h(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(h=function(e){return e?r:t})(e)}function f(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=h(t);if(r&&r.has(e))return r.get(e);var n={},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var o in e)if("default"!==o&&Object.prototype.hasOwnProperty.call(e,o)){var a=i?Object.getOwnPropertyDescriptor(e,o):null;a&&(a.get||a.set)?Object.defineProperty(n,o,a):n[o]=e[o]}return n.default=e,r&&r.set(e,n),n}function y(e){return e&&e.__esModule?e:{default:e}}p.Mesh.prototype.raycast=w.acceleratedRaycast,p.BufferGeometry.prototype.computeBoundsTree=w.computeBoundsTree,p.BufferGeometry.prototype.disposeBoundsTree=w.disposeBoundsTree;var m,v=new p.Vector2,T="../models/point_cloud_porsche_911_1.7M_vertices/scene.ply",b=new p.Raycaster,x={displayHelper:!1,helperDepth:10,pointSize:.005,raycastThreshold:.005,useBVH:!0};function M(){s=document.getElementById("output"),(n=new p.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),n.setSize(window.innerWidth,window.innerHeight),n.setClearColor(1251612,1),document.body.appendChild(n.domElement),t=new p.Scene,(r=new p.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(3,3,3),r.far=100,r.updateProjectionMatrix(),new c.OrbitControls(r,n.domElement),e=new d.default,document.body.appendChild(e.dom),window.addEventListener("resize",function(){r.aspect=window.innerWidth/window.innerHeight,r.updateProjectionMatrix(),n.setSize(window.innerWidth,window.innerHeight)},!1),(new l.PLYLoader).load(T,function(e){e.center();var r=new p.PointsMaterial({size:x.pointSize,vertexColors:!0});(a=new p.Points(e,r)).matrixAutoUpdate=!1,t.add(a);for(var n=[],s=e.clone(),d=0,c=s.attributes.position.count;d<c;d++)n.push(d,d,d);s.setIndex(n);var l=new p.MeshBasicMaterial({color:16711680});(i=new p.Mesh(s,l)).geometry.computeBoundsTree(),o=new w.MeshBVHVisualizer(i,x.depth),t.add(o)});var h=new p.SphereGeometry(.01,32,32),f=new p.MeshBasicMaterial({color:16776960,opacity:.9,transparent:!0});(m=new p.Mesh(h,f)).visible=!1,t.add(m);var y=new u.GUI,v=y.addFolder("helper");v.add(x,"displayHelper"),v.add(x,"helperDepth",1,20,1).name("depth").onChange(function(e){o.depth=parseInt(e),o.update()}),v.open();var b=y.addFolder("points");b.add(x,"useBVH"),b.add(x,"pointSize",.001,.01,.001),b.add(x,"raycastThreshold",.001,.01,.001),b.open()}function g(){requestAnimationFrame(g),a&&(a.material.size=x.pointSize,o.visible=x.displayHelper,b.params.Points.threshold=x.raycastThreshold),e.begin(),n.render(t,r),e.end()}window.addEventListener("pointermove",function(e){if(i){v.x=e.clientX/window.innerWidth*2-1,v.y=-e.clientY/window.innerHeight*2+1,b.setFromCamera(v,r);var t=window.performance.now();if(x.useBVH){m.visible=!1;var n=new p.Matrix4;n.copy(i.matrixWorld).invert(),b.ray.applyMatrix4(n);var o=b.params.Points.threshold/((i.scale.x+i.scale.y+i.scale.z)/3),d=o*o,c=b.ray,l=1/0;i.geometry.boundsTree.shapecast(i,{boundsTraverseOrder:function(e){return e.distanceToPoint(c.origin)},intersectsBounds:function(e,t,r){return r>l?w.NOT_INTERSECTED:(e.expandByScalar(o),c.intersectsBox(e)?w.INTERSECTED:w.NOT_INTERSECTED)},intersectsTriangle:function(e){if(c.distanceSqToPoint(e.a)<d){var t=c.origin.distanceTo(e.a);t<l&&(l=t,m.position.copy(e.a).applyMatrix4(i.matrixWorld),m.visible=!0)}}})}else{var u=b.intersectObject(a,!0)[0];u?(m.position.copy(u.point),m.visible=!0):m.visible=!1}var h=window.performance.now()-t;s.innerText="".concat(h.toFixed(2),"ms")}},!1),M(),g();
 },{"stats.js/src/Stats":"RDO9","three":"dKqR","three/examples/jsm/controls/OrbitControls.js":"xTGv","three/examples/jsm/loaders/PLYLoader.js":"FLQP","dat.gui":"KkZG","../src/index.js":"uBxZ"}]},{},["CMV4"], null)
\ No newline at end of file
diff --git a/example/bundle/randomSampleDebug.32ad2b43.js b/example/bundle/randomSampleDebug.32ad2b43.js
index 1d0b95969..46e43def5 100644
--- a/example/bundle/randomSampleDebug.32ad2b43.js
+++ b/example/bundle/randomSampleDebug.32ad2b43.js
@@ -39,5 +39,5 @@ parcelRequire=function(e,r,t,n){var i,o="function"==typeof parcelRequire&&parcel
 },{"three":"dKqR","./MeshBVH.js":"nIyY","./MeshBVHVisualizer.js":"jNwr","./Constants.js":"tuIt","./Utils/Debug.js":"uNJb","./MeshBVHDebug.js":"HxoX"}],"xTGv":[function(require,module,exports) {
 "use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.MapControls=exports.OrbitControls=void 0;var e=require("../../../build/three.module.js"),t=function(t,n){var o,a,i,r,c,s;void 0===n&&console.warn('THREE.OrbitControls: The second parameter "domElement" is now mandatory.'),n===document&&console.error('THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.'),this.object=t,this.domElement=n,this.enabled=!0,this.target=new e.Vector3,this.minDistance=0,this.maxDistance=1/0,this.minZoom=0,this.maxZoom=1/0,this.minPolarAngle=0,this.maxPolarAngle=Math.PI,this.minAzimuthAngle=-1/0,this.maxAzimuthAngle=1/0,this.enableDamping=!1,this.dampingFactor=.05,this.enableZoom=!0,this.zoomSpeed=1,this.enableRotate=!0,this.rotateSpeed=1,this.enablePan=!0,this.panSpeed=1,this.screenSpacePanning=!0,this.keyPanSpeed=7,this.autoRotate=!1,this.autoRotateSpeed=2,this.keys={LEFT:37,UP:38,RIGHT:39,BOTTOM:40},this.mouseButtons={LEFT:e.MOUSE.ROTATE,MIDDLE:e.MOUSE.DOLLY,RIGHT:e.MOUSE.PAN},this.touches={ONE:e.TOUCH.ROTATE,TWO:e.TOUCH.DOLLY_PAN},this.target0=this.target.clone(),this.position0=this.object.position.clone(),this.zoom0=this.object.zoom,this._domElementKeyEvents=null,this.getPolarAngle=function(){return E.phi},this.getAzimuthalAngle=function(){return E.theta},this.listenToKeyEvents=function(e){e.addEventListener("keydown",Q),this._domElementKeyEvents=e},this.saveState=function(){u.target0.copy(u.target),u.position0.copy(u.object.position),u.zoom0=u.object.zoom},this.reset=function(){u.target.copy(u.target0),u.object.position.copy(u.position0),u.object.zoom=u.zoom0,u.object.updateProjectionMatrix(),u.dispatchEvent(l),u.update(),d=h.NONE},this.update=(o=new e.Vector3,a=(new e.Quaternion).setFromUnitVectors(t.up,new e.Vector3(0,1,0)),i=a.clone().invert(),r=new e.Vector3,c=new e.Quaternion,s=2*Math.PI,function(){var e=u.object.position;o.copy(e).sub(u.target),o.applyQuaternion(a),E.setFromVector3(o),u.autoRotate&&d===h.NONE&&R(2*Math.PI/60/60*u.autoRotateSpeed),u.enableDamping?(E.theta+=f.theta*u.dampingFactor,E.phi+=f.phi*u.dampingFactor):(E.theta+=f.theta,E.phi+=f.phi);var t=u.minAzimuthAngle,n=u.maxAzimuthAngle;return isFinite(t)&&isFinite(n)&&(t<-Math.PI?t+=s:t>Math.PI&&(t-=s),n<-Math.PI?n+=s:n>Math.PI&&(n-=s),E.theta=t<=n?Math.max(t,Math.min(n,E.theta)):E.theta>(t+n)/2?Math.max(t,E.theta):Math.min(n,E.theta)),E.phi=Math.max(u.minPolarAngle,Math.min(u.maxPolarAngle,E.phi)),E.makeSafe(),E.radius*=O,E.radius=Math.max(u.minDistance,Math.min(u.maxDistance,E.radius)),!0===u.enableDamping?u.target.addScaledVector(g,u.dampingFactor):u.target.add(g),o.setFromSpherical(E),o.applyQuaternion(i),e.copy(u.target).add(o),u.object.lookAt(u.target),!0===u.enableDamping?(f.theta*=1-u.dampingFactor,f.phi*=1-u.dampingFactor,g.multiplyScalar(1-u.dampingFactor)):(f.set(0,0,0),g.set(0,0,0)),O=1,!!(v||r.distanceToSquared(u.object.position)>b||8*(1-c.dot(u.object.quaternion))>b)&&(u.dispatchEvent(l),r.copy(u.object.position),c.copy(u.object.quaternion),v=!1,!0)}),this.dispose=function(){u.domElement.removeEventListener("contextmenu",te),u.domElement.removeEventListener("pointerdown",B),u.domElement.removeEventListener("wheel",q),u.domElement.removeEventListener("touchstart",J),u.domElement.removeEventListener("touchend",ee),u.domElement.removeEventListener("touchmove",$),u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),null!==u._domElementKeyEvents&&u._domElementKeyEvents.removeEventListener("keydown",Q)};var u=this,l={type:"change"},m={type:"start"},p={type:"end"},h={NONE:-1,ROTATE:0,DOLLY:1,PAN:2,TOUCH_ROTATE:3,TOUCH_PAN:4,TOUCH_DOLLY_PAN:5,TOUCH_DOLLY_ROTATE:6},d=h.NONE,b=1e-6,E=new e.Spherical,f=new e.Spherical,O=1,g=new e.Vector3,v=!1,T=new e.Vector2,y=new e.Vector2,P=new e.Vector2,L=new e.Vector2,w=new e.Vector2,A=new e.Vector2,N=new e.Vector2,M=new e.Vector2,j=new e.Vector2;function D(){return Math.pow(.95,u.zoomSpeed)}function R(e){f.theta-=e}function S(e){f.phi-=e}var k,C=(k=new e.Vector3,function(e,t){k.setFromMatrixColumn(t,0),k.multiplyScalar(-e),g.add(k)}),Y=function(){var t=new e.Vector3;return function(e,n){!0===u.screenSpacePanning?t.setFromMatrixColumn(n,1):(t.setFromMatrixColumn(n,0),t.crossVectors(u.object.up,t)),t.multiplyScalar(e),g.add(t)}}(),x=function(){var t=new e.Vector3;return function(e,n){var o=u.domElement;if(u.object.isPerspectiveCamera){var a=u.object.position;t.copy(a).sub(u.target);var i=t.length();i*=Math.tan(u.object.fov/2*Math.PI/180),C(2*e*i/o.clientHeight,u.object.matrix),Y(2*n*i/o.clientHeight,u.object.matrix)}else u.object.isOrthographicCamera?(C(e*(u.object.right-u.object.left)/u.object.zoom/o.clientWidth,u.object.matrix),Y(n*(u.object.top-u.object.bottom)/u.object.zoom/o.clientHeight,u.object.matrix)):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - pan disabled."),u.enablePan=!1)}}();function H(e){u.object.isPerspectiveCamera?O/=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom*e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function U(e){u.object.isPerspectiveCamera?O*=e:u.object.isOrthographicCamera?(u.object.zoom=Math.max(u.minZoom,Math.min(u.maxZoom,u.object.zoom/e)),u.object.updateProjectionMatrix(),v=!0):(console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled."),u.enableZoom=!1)}function _(e){T.set(e.clientX,e.clientY)}function V(e){L.set(e.clientX,e.clientY)}function z(e){if(1==e.touches.length)T.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);T.set(t,n)}}function I(e){if(1==e.touches.length)L.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);L.set(t,n)}}function X(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);N.set(0,o)}function F(e){if(1==e.touches.length)y.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);y.set(t,n)}P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var o=u.domElement;R(2*Math.PI*P.x/o.clientHeight),S(2*Math.PI*P.y/o.clientHeight),T.copy(y)}function Z(e){if(1==e.touches.length)w.set(e.touches[0].pageX,e.touches[0].pageY);else{var t=.5*(e.touches[0].pageX+e.touches[1].pageX),n=.5*(e.touches[0].pageY+e.touches[1].pageY);w.set(t,n)}A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w)}function K(e){var t=e.touches[0].pageX-e.touches[1].pageX,n=e.touches[0].pageY-e.touches[1].pageY,o=Math.sqrt(t*t+n*n);M.set(0,o),j.set(0,Math.pow(M.y/N.y,u.zoomSpeed)),H(j.y),N.copy(M)}function B(t){if(!1!==u.enabled)switch(t.pointerType){case"mouse":case"pen":!function(t){var n;switch(t.preventDefault(),u.domElement.focus?u.domElement.focus():window.focus(),t.button){case 0:n=u.mouseButtons.LEFT;break;case 1:n=u.mouseButtons.MIDDLE;break;case 2:n=u.mouseButtons.RIGHT;break;default:n=-1}switch(n){case e.MOUSE.DOLLY:if(!1===u.enableZoom)return;!function(e){N.set(e.clientX,e.clientY)}(t),d=h.DOLLY;break;case e.MOUSE.ROTATE:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enablePan)return;V(t),d=h.PAN}else{if(!1===u.enableRotate)return;_(t),d=h.ROTATE}break;case e.MOUSE.PAN:if(t.ctrlKey||t.metaKey||t.shiftKey){if(!1===u.enableRotate)return;_(t),d=h.ROTATE}else{if(!1===u.enablePan)return;V(t),d=h.PAN}break;default:d=h.NONE}d!==h.NONE&&(u.domElement.ownerDocument.addEventListener("pointermove",G),u.domElement.ownerDocument.addEventListener("pointerup",W),u.dispatchEvent(m))}(t)}}function G(e){if(!1!==u.enabled)switch(e.pointerType){case"mouse":case"pen":!function(e){if(!1===u.enabled)return;switch(e.preventDefault(),d){case h.ROTATE:if(!1===u.enableRotate)return;!function(e){y.set(e.clientX,e.clientY),P.subVectors(y,T).multiplyScalar(u.rotateSpeed);var t=u.domElement;R(2*Math.PI*P.x/t.clientHeight),S(2*Math.PI*P.y/t.clientHeight),T.copy(y),u.update()}(e);break;case h.DOLLY:if(!1===u.enableZoom)return;!function(e){M.set(e.clientX,e.clientY),j.subVectors(M,N),j.y>0?H(D()):j.y<0&&U(D()),N.copy(M),u.update()}(e);break;case h.PAN:if(!1===u.enablePan)return;!function(e){w.set(e.clientX,e.clientY),A.subVectors(w,L).multiplyScalar(u.panSpeed),x(A.x,A.y),L.copy(w),u.update()}(e)}}(e)}}function W(e){switch(e.pointerType){case"mouse":case"pen":!function(e){if(u.domElement.ownerDocument.removeEventListener("pointermove",G),u.domElement.ownerDocument.removeEventListener("pointerup",W),!1===u.enabled)return;u.dispatchEvent(p),d=h.NONE}()}}function q(e){!1===u.enabled||!1===u.enableZoom||d!==h.NONE&&d!==h.ROTATE||(e.preventDefault(),e.stopPropagation(),u.dispatchEvent(m),function(e){e.deltaY<0?U(D()):e.deltaY>0&&H(D()),u.update()}(e),u.dispatchEvent(p))}function Q(e){!1!==u.enabled&&!1!==u.enablePan&&function(e){var t=!1;switch(e.keyCode){case u.keys.UP:x(0,u.keyPanSpeed),t=!0;break;case u.keys.BOTTOM:x(0,-u.keyPanSpeed),t=!0;break;case u.keys.LEFT:x(u.keyPanSpeed,0),t=!0;break;case u.keys.RIGHT:x(-u.keyPanSpeed,0),t=!0}t&&(e.preventDefault(),u.update())}(e)}function J(t){if(!1!==u.enabled){switch(t.preventDefault(),t.touches.length){case 1:switch(u.touches.ONE){case e.TOUCH.ROTATE:if(!1===u.enableRotate)return;z(t),d=h.TOUCH_ROTATE;break;case e.TOUCH.PAN:if(!1===u.enablePan)return;I(t),d=h.TOUCH_PAN;break;default:d=h.NONE}break;case 2:switch(u.touches.TWO){case e.TOUCH.DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&X(e),u.enablePan&&I(e)}(t),d=h.TOUCH_DOLLY_PAN;break;case e.TOUCH.DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&X(e),u.enableRotate&&z(e)}(t),d=h.TOUCH_DOLLY_ROTATE;break;default:d=h.NONE}break;default:d=h.NONE}d!==h.NONE&&u.dispatchEvent(m)}}function $(e){if(!1!==u.enabled)switch(e.preventDefault(),e.stopPropagation(),d){case h.TOUCH_ROTATE:if(!1===u.enableRotate)return;F(e),u.update();break;case h.TOUCH_PAN:if(!1===u.enablePan)return;Z(e),u.update();break;case h.TOUCH_DOLLY_PAN:if(!1===u.enableZoom&&!1===u.enablePan)return;!function(e){u.enableZoom&&K(e),u.enablePan&&Z(e)}(e),u.update();break;case h.TOUCH_DOLLY_ROTATE:if(!1===u.enableZoom&&!1===u.enableRotate)return;!function(e){u.enableZoom&&K(e),u.enableRotate&&F(e)}(e),u.update();break;default:d=h.NONE}}function ee(e){!1!==u.enabled&&(u.dispatchEvent(p),d=h.NONE)}function te(e){!1!==u.enabled&&e.preventDefault()}u.domElement.addEventListener("contextmenu",te),u.domElement.addEventListener("pointerdown",B),u.domElement.addEventListener("wheel",q),u.domElement.addEventListener("touchstart",J),u.domElement.addEventListener("touchend",ee),u.domElement.addEventListener("touchmove",$),this.update()};exports.OrbitControls=t,t.prototype=Object.create(e.EventDispatcher.prototype),t.prototype.constructor=t;var n=function(n,o){t.call(this,n,o),this.screenSpacePanning=!1,this.mouseButtons.LEFT=e.MOUSE.PAN,this.mouseButtons.RIGHT=e.MOUSE.ROTATE,this.touches.ONE=e.TOUCH.PAN,this.touches.TWO=e.TOUCH.DOLLY_ROTATE};exports.MapControls=n,n.prototype=Object.create(e.EventDispatcher.prototype),n.prototype.constructor=n;
 },{"../../../build/three.module.js":"dKqR"}],"OLLT":[function(require,module,exports) {
-"use strict";var e,t,r,n=c(require("three")),o=require("../src/index.js"),i=s(require("../src/MeshBVHVisualizer.js")),a=require("three/examples/jsm/controls/OrbitControls.js");function s(e){return e&&e.__esModule?e:{default:e}}function d(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(d=function(e){return e?r:t})(e)}function c(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=d(t);if(r&&r.has(e))return r.get(e);var n={},o=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var i in e)if("default"!==i&&Object.prototype.hasOwnProperty.call(e,i)){var a=o?Object.getOwnPropertyDescriptor(e,i):null;a&&(a.get||a.set)?Object.defineProperty(n,i,a):n[i]=e[i]}return n.default=e,r&&r.set(e,n),n}n.Mesh.prototype.raycast=o.acceleratedRaycast,n.BufferGeometry.prototype.computeBoundsTree=o.computeBoundsTree,n.BufferGeometry.prototype.disposeBoundsTree=o.disposeBoundsTree;var u=[],l=null;function p(){if(null===l)throw new Error;return(l=(1103515245*l+12345)%2e31)/2e31}function w(){(e=new n.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),e.setSize(window.innerWidth,window.innerHeight),e.setClearColor(1118481,1),e.gammaOutput=!0,document.body.appendChild(e.domElement),r=new n.Scene;var s=new n.DirectionalLight(16777215,1);s.position.set(1,1,1),r.add(s),r.add(new n.AmbientLight(11583173,.8)),(t=new n.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,4),t.far=100,t.updateProjectionMatrix(),new a.OrbitControls(t,e.domElement);var d={strategy:o.AVERAGE,packData:!1,lazyGeneration:!1,maxDepth:1},c=new n.TorusBufferGeometry(1,1,40,10);c.computeBoundsTree(d),l=7830035629,p();for(var w=0;w<10;w++){var f=new n.Mesh(c,new n.MeshStandardMaterial);if(f.rotation.x=10*p(),f.rotation.y=10*p(),f.rotation.z=10*p(),f.position.x=p(),f.position.y=p(),f.position.z=p(),2===w){u.push(f),r.add(f);var y=f.clone();y.material=new n.MeshBasicMaterial({wireframe:!0,color:16737894}),r.add(y);var m=new i.default(f,10);r.add(m)}f.updateMatrix(!0),f.updateMatrixWorld(!0)}l=4697211981,p();var h=new n.Raycaster;h.firstHitOnly=!1,h.ray.origin.set(10*p(),10*p(),10*p()),h.ray.direction.copy(h.ray.origin).multiplyScalar(-1).normalize();var v=new n.SphereBufferGeometry(.1),g=new n.Mesh(v);g.position.copy(h.ray.at(0)),r.add(g);var M=h.intersectObjects(u,!0);h.firstHitOnly=!0;var O=h.intersectObjects(u,!0);c.boundsTree=null;var b=h.intersectObjects(u,!0);console.log("FIRST HIT",O),console.log("BVH HITS",M),console.log("OG HITS",b);var j=g.clone();j.position.copy(O[0].point),r.add(j);var B=g.clone();B.position.copy(M[0].point),r.add(B);var x=new n.Line;x.geometry.setFromPoints([h.ray.at(0,new n.Vector3),h.ray.at(20,new n.Vector3)]),r.add(x),window.addEventListener("resize",function(){t.aspect=window.innerWidth/window.innerHeight,t.updateProjectionMatrix(),e.setSize(window.innerWidth,window.innerHeight)},!1)}function f(){requestAnimationFrame(f),e.render(r,t)}w(),f();
+"use strict";var e,t,r,n=c(require("three")),o=require("../src/index.js"),i=s(require("../src/MeshBVHVisualizer.js")),a=require("three/examples/jsm/controls/OrbitControls.js");function s(e){return e&&e.__esModule?e:{default:e}}function d(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,r=new WeakMap;return(d=function(e){return e?r:t})(e)}function c(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!=typeof e&&"function"!=typeof e)return{default:e};var r=d(t);if(r&&r.has(e))return r.get(e);var n={},o=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var i in e)if("default"!==i&&Object.prototype.hasOwnProperty.call(e,i)){var a=o?Object.getOwnPropertyDescriptor(e,i):null;a&&(a.get||a.set)?Object.defineProperty(n,i,a):n[i]=e[i]}return n.default=e,r&&r.set(e,n),n}n.Mesh.prototype.raycast=o.acceleratedRaycast,n.BufferGeometry.prototype.computeBoundsTree=o.computeBoundsTree,n.BufferGeometry.prototype.disposeBoundsTree=o.disposeBoundsTree;var u=[],l=null;function p(){if(null===l)throw new Error;return(l=(1103515245*l+12345)%2e31)/2e31}function w(){(e=new n.WebGLRenderer({antialias:!0})).setPixelRatio(window.devicePixelRatio),e.setSize(window.innerWidth,window.innerHeight),e.setClearColor(1118481,1),e.gammaOutput=!0,document.body.appendChild(e.domElement),r=new n.Scene;var s=new n.DirectionalLight(16777215,1);s.position.set(1,1,1),r.add(s),r.add(new n.AmbientLight(11583173,.8)),(t=new n.PerspectiveCamera(75,window.innerWidth/window.innerHeight,.1,50)).position.set(0,0,4),t.far=100,t.updateProjectionMatrix(),new a.OrbitControls(t,e.domElement);var d={strategy:o.AVERAGE,packData:!1,maxDepth:1},c=new n.TorusBufferGeometry(1,1,40,10);c.computeBoundsTree(d),l=7830035629,p();for(var w=0;w<10;w++){var f=new n.Mesh(c,new n.MeshStandardMaterial);if(f.rotation.x=10*p(),f.rotation.y=10*p(),f.rotation.z=10*p(),f.position.x=p(),f.position.y=p(),f.position.z=p(),2===w){u.push(f),r.add(f);var y=f.clone();y.material=new n.MeshBasicMaterial({wireframe:!0,color:16737894}),r.add(y);var m=new i.default(f,10);r.add(m)}f.updateMatrix(!0),f.updateMatrixWorld(!0)}l=4697211981,p();var h=new n.Raycaster;h.firstHitOnly=!1,h.ray.origin.set(10*p(),10*p(),10*p()),h.ray.direction.copy(h.ray.origin).multiplyScalar(-1).normalize();var v=new n.SphereBufferGeometry(.1),g=new n.Mesh(v);g.position.copy(h.ray.at(0)),r.add(g);var M=h.intersectObjects(u,!0);h.firstHitOnly=!0;var O=h.intersectObjects(u,!0);c.boundsTree=null;var b=h.intersectObjects(u,!0);console.log("FIRST HIT",O),console.log("BVH HITS",M),console.log("OG HITS",b);var j=g.clone();j.position.copy(O[0].point),r.add(j);var B=g.clone();B.position.copy(M[0].point),r.add(B);var x=new n.Line;x.geometry.setFromPoints([h.ray.at(0,new n.Vector3),h.ray.at(20,new n.Vector3)]),r.add(x),window.addEventListener("resize",function(){t.aspect=window.innerWidth/window.innerHeight,t.updateProjectionMatrix(),e.setSize(window.innerWidth,window.innerHeight)},!1)}function f(){requestAnimationFrame(f),e.render(r,t)}w(),f();
 },{"three":"dKqR","../src/index.js":"uBxZ","../src/MeshBVHVisualizer.js":"jNwr","three/examples/jsm/controls/OrbitControls.js":"xTGv"}]},{},["OLLT"], null)
\ No newline at end of file
diff --git a/example/bundle/raycast.88074831.js b/example/bundle/raycast.88074831.js
index cd70e4c0f..679d80038 100644
--- a/example/bundle/raycast.88074831.js
+++ b/example/bundle/raycast.88074831.js
@@ -571,5 +571,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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diff --git a/example/bundle/selection.383a520f.js b/example/bundle/selection.383a520f.js
index b8df13574..9e713408d 100644
--- a/example/bundle/selection.383a520f.js
+++ b/example/bundle/selection.383a520f.js
@@ -44,5 +44,5 @@ var e;!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module
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